drivers/scsi/lpfc/lpfc_init.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2017-2021 Broadcom. All Rights Reserved. The term *
   5  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.  *
   6  * Copyright (C) 2004-2016 Emulex.  All rights reserved.           *
   7  * EMULEX and SLI are trademarks of Emulex.                        *
   8  * www.broadcom.com                                                *
   9  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
  10  *                                                                 *
  11  * This program is free software; you can redistribute it and/or   *
  12  * modify it under the terms of version 2 of the GNU General       *
  13  * Public License as published by the Free Software Foundation.    *
  14  * This program is distributed in the hope that it will be useful. *
  15  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  16  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  17  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  18  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  19  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  20  * more details, a copy of which can be found in the file COPYING  *
  21  * included with this package.                                     *
  22  *******************************************************************/
  23
  24 #include <linux/blkdev.h>
  25 #include <linux/delay.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/idr.h>
  28 #include <linux/interrupt.h>
  29 #include <linux/module.h>
  30 #include <linux/kthread.h>
  31 #include <linux/pci.h>
  32 #include <linux/spinlock.h>
  33 #include <linux/ctype.h>
  34 #include <linux/aer.h>
  35 #include <linux/slab.h>
  36 #include <linux/firmware.h>
  37 #include <linux/miscdevice.h>
  38 #include <linux/percpu.h>
  39 #include <linux/msi.h>
  40 #include <linux/irq.h>
  41 #include <linux/bitops.h>
  42 #include <linux/crash_dump.h>
  43 #include <linux/cpu.h>
  44 #include <linux/cpuhotplug.h>
  45
  46 #include <scsi/scsi.h>
  47 #include <scsi/scsi_device.h>
  48 #include <scsi/scsi_host.h>
  49 #include <scsi/scsi_transport_fc.h>
  50 #include <scsi/scsi_tcq.h>
  51 #include <scsi/fc/fc_fs.h>
  52
  53 #include "lpfc_hw4.h"
  54 #include "lpfc_hw.h"
  55 #include "lpfc_sli.h"
  56 #include "lpfc_sli4.h"
  57 #include "lpfc_nl.h"
  58 #include "lpfc_disc.h"
  59 #include "lpfc.h"
  60 #include "lpfc_scsi.h"
  61 #include "lpfc_nvme.h"
  62 #include "lpfc_logmsg.h"
  63 #include "lpfc_crtn.h"
  64 #include "lpfc_vport.h"
  65 #include "lpfc_version.h"
  66 #include "lpfc_ids.h"
  67
  68 static enum cpuhp_state lpfc_cpuhp_state;
  69 /* Used when mapping IRQ vectors in a driver centric manner */
  70 static uint32_t lpfc_present_cpu;
  71 static bool lpfc_pldv_detect;
  72
  73 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  75 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  76 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  77 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  78 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  79 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  80 static int lpfc_setup_endian_order(struct lpfc_hba *);
  81 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  82 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  83 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  84 static void lpfc_init_sgl_list(struct lpfc_hba *);
  85 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  86 static void lpfc_free_active_sgl(struct lpfc_hba *);
  87 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  88 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  89 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  91 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  92 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  93 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  94 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  95 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  96 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  97 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  98
  99 static struct scsi_transport_template *lpfc_transport_template = NULL;
 100 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 101 static DEFINE_IDR(lpfc_hba_index);
 102 #define LPFC_NVMET_BUF_POST 254
 103 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 104
 105 /**
 106  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 107  * @phba: pointer to lpfc hba data structure.
 108  *
 109  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 110  * mailbox command. It retrieves the revision information from the HBA and
 111  * collects the Vital Product Data (VPD) about the HBA for preparing the
 112  * configuration of the HBA.
 113  *
 114  * Return codes:
 115  *   0 - success.
 116  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 117  *   Any other value - indicates an error.
 118  **/
 119 int
 120 lpfc_config_port_prep(struct lpfc_hba *phba)
 121 {
 122         lpfc_vpd_t *vp = &phba->vpd;
 123         int i = 0, rc;
 124         LPFC_MBOXQ_t *pmb;
 125         MAILBOX_t *mb;
 126         char *lpfc_vpd_data = NULL;
 127         uint16_t offset = 0;
 128         static char licensed[56] =
 129                     "key unlock for use with gnu public licensed code only\0";
 130         static int init_key = 1;
 131
 132         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 133         if (!pmb) {
 134                 phba->link_state = LPFC_HBA_ERROR;
 135                 return -ENOMEM;
 136         }
 137
 138         mb = &pmb->u.mb;
 139         phba->link_state = LPFC_INIT_MBX_CMDS;
 140
 141         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 142                 if (init_key) {
 143                         uint32_t *ptext = (uint32_t *) licensed;
 144
 145                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 146                                 *ptext = cpu_to_be32(*ptext);
 147                         init_key = 0;
 148                 }
 149
 150                 lpfc_read_nv(phba, pmb);
 151                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 152                         sizeof (mb->un.varRDnvp.rsvd3));
 153                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 154                          sizeof (licensed));
 155
 156                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 157
 158                 if (rc != MBX_SUCCESS) {
 159                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 160                                         "0324 Config Port initialization "
 161                                         "error, mbxCmd x%x READ_NVPARM, "
 162                                         "mbxStatus x%x\n",
 163                                         mb->mbxCommand, mb->mbxStatus);
 164                         mempool_free(pmb, phba->mbox_mem_pool);
 165                         return -ERESTART;
 166                 }
 167                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 168                        sizeof(phba->wwnn));
 169                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 170                        sizeof(phba->wwpn));
 171         }
 172
 173         /*
 174          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 175          * which was already set in lpfc_get_cfgparam()
 176          */
 177         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 178
 179         /* Setup and issue mailbox READ REV command */
 180         lpfc_read_rev(phba, pmb);
 181         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 182         if (rc != MBX_SUCCESS) {
 183                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 184                                 "0439 Adapter failed to init, mbxCmd x%x "
 185                                 "READ_REV, mbxStatus x%x\n",
 186                                 mb->mbxCommand, mb->mbxStatus);
 187                 mempool_free( pmb, phba->mbox_mem_pool);
 188                 return -ERESTART;
 189         }
 190
 191
 192         /*
 193          * The value of rr must be 1 since the driver set the cv field to 1.
 194          * This setting requires the FW to set all revision fields.
 195          */
 196         if (mb->un.varRdRev.rr == 0) {
 197                 vp->rev.rBit = 0;
 198                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 199                                 "0440 Adapter failed to init, READ_REV has "
 200                                 "missing revision information.\n");
 201                 mempool_free(pmb, phba->mbox_mem_pool);
 202                 return -ERESTART;
 203         }
 204
 205         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 206                 mempool_free(pmb, phba->mbox_mem_pool);
 207                 return -EINVAL;
 208         }
 209
 210         /* Save information as VPD data */
 211         vp->rev.rBit = 1;
 212         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 213         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 214         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 215         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 216         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 217         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 218         vp->rev.smRev = mb->un.varRdRev.smRev;
 219         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 220         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 221         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 222         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 223         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 224         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 225         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 226         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 227
 228         /* If the sli feature level is less then 9, we must
 229          * tear down all RPIs and VPIs on link down if NPIV
 230          * is enabled.
 231          */
 232         if (vp->rev.feaLevelHigh < 9)
 233                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 234
 235         if (lpfc_is_LC_HBA(phba->pcidev->device))
 236                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 237                                                 sizeof (phba->RandomData));
 238
 239         /* Get adapter VPD information */
 240         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 241         if (!lpfc_vpd_data)
 242                 goto out_free_mbox;
 243         do {
 244                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 245                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 246
 247                 if (rc != MBX_SUCCESS) {
 248                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 249                                         "0441 VPD not present on adapter, "
 250                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 251                                         mb->mbxCommand, mb->mbxStatus);
 252                         mb->un.varDmp.word_cnt = 0;
 253                 }
 254                 /* dump mem may return a zero when finished or we got a
 255                  * mailbox error, either way we are done.
 256                  */
 257                 if (mb->un.varDmp.word_cnt == 0)
 258                         break;
 259
 260                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 261                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 262                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 263                                       lpfc_vpd_data + offset,
 264                                       mb->un.varDmp.word_cnt);
 265                 offset += mb->un.varDmp.word_cnt;
 266         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 267
 268         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 269
 270         kfree(lpfc_vpd_data);
 271 out_free_mbox:
 272         mempool_free(pmb, phba->mbox_mem_pool);
 273         return 0;
 274 }
 275
 276 /**
 277  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 278  * @phba: pointer to lpfc hba data structure.
 279  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 280  *
 281  * This is the completion handler for driver's configuring asynchronous event
 282  * mailbox command to the device. If the mailbox command returns successfully,
 283  * it will set internal async event support flag to 1; otherwise, it will
 284  * set internal async event support flag to 0.
 285  **/
 286 static void
 287 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 288 {
 289         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 290                 phba->temp_sensor_support = 1;
 291         else
 292                 phba->temp_sensor_support = 0;
 293         mempool_free(pmboxq, phba->mbox_mem_pool);
 294         return;
 295 }
 296
 297 /**
 298  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 299  * @phba: pointer to lpfc hba data structure.
 300  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 301  *
 302  * This is the completion handler for dump mailbox command for getting
 303  * wake up parameters. When this command complete, the response contain
 304  * Option rom version of the HBA. This function translate the version number
 305  * into a human readable string and store it in OptionROMVersion.
 306  **/
 307 static void
 308 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 309 {
 310         struct prog_id *prg;
 311         uint32_t prog_id_word;
 312         char dist = ' ';
 313         /* character array used for decoding dist type. */
 314         char dist_char[] = "nabx";
 315
 316         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 317                 mempool_free(pmboxq, phba->mbox_mem_pool);
 318                 return;
 319         }
 320
 321         prg = (struct prog_id *) &prog_id_word;
 322
 323         /* word 7 contain option rom version */
 324         prog_id_word = pmboxq->u.mb.un.varWords[7];
 325
 326         /* Decode the Option rom version word to a readable string */
 327         if (prg->dist < 4)
 328                 dist = dist_char[prg->dist];
 329
 330         if ((prg->dist == 3) && (prg->num == 0))
 331                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 332                         prg->ver, prg->rev, prg->lev);
 333         else
 334                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 335                         prg->ver, prg->rev, prg->lev,
 336                         dist, prg->num);
 337         mempool_free(pmboxq, phba->mbox_mem_pool);
 338         return;
 339 }
 340
 341 /**
 342  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 343  *      cfg_soft_wwnn, cfg_soft_wwpn
 344  * @vport: pointer to lpfc vport data structure.
 345  *
 346  *
 347  * Return codes
 348  *   None.
 349  **/
 350 void
 351 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 352 {
 353         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 354         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 355
 356         /* If the soft name exists then update it using the service params */
 357         if (vport->phba->cfg_soft_wwnn)
 358                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 359                            vport->fc_sparam.nodeName.u.wwn);
 360         if (vport->phba->cfg_soft_wwpn)
 361                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 362                            vport->fc_sparam.portName.u.wwn);
 363
 364         /*
 365          * If the name is empty or there exists a soft name
 366          * then copy the service params name, otherwise use the fc name
 367          */
 368         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 369                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 370                         sizeof(struct lpfc_name));
 371         else
 372                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 373                         sizeof(struct lpfc_name));
 374
 375         /*
 376          * If the port name has changed, then set the Param changes flag
 377          * to unreg the login
 378          */
 379         if (vport->fc_portname.u.wwn[0] != 0 &&
 380                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 381                         sizeof(struct lpfc_name)))
 382                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 383
 384         if (vport->fc_portname.u.wwn[0] == 0 ||
 385             vport->phba->cfg_soft_wwpn ||
 386             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 387             vport->vport_flag & FAWWPN_SET) {
 388                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 389                         sizeof(struct lpfc_name));
 390                 vport->vport_flag &= ~FAWWPN_SET;
 391                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 392                         vport->vport_flag |= FAWWPN_SET;
 393         }
 394         else
 395                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 396                         sizeof(struct lpfc_name));
 397 }
 398
 399 /**
 400  * lpfc_config_port_post - Perform lpfc initialization after config port
 401  * @phba: pointer to lpfc hba data structure.
 402  *
 403  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 404  * command call. It performs all internal resource and state setups on the
 405  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 406  * ELS ring timers, etc.
 407  *
 408  * Return codes
 409  *   0 - success.
 410  *   Any other value - error.
 411  **/
 412 int
 413 lpfc_config_port_post(struct lpfc_hba *phba)
 414 {
 415         struct lpfc_vport *vport = phba->pport;
 416         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 417         LPFC_MBOXQ_t *pmb;
 418         MAILBOX_t *mb;
 419         struct lpfc_dmabuf *mp;
 420         struct lpfc_sli *psli = &phba->sli;
 421         uint32_t status, timeout;
 422         int i, j;
 423         int rc;
 424
 425         spin_lock_irq(&phba->hbalock);
 426         /*
 427          * If the Config port completed correctly the HBA is not
 428          * over heated any more.
 429          */
 430         if (phba->over_temp_state == HBA_OVER_TEMP)
 431                 phba->over_temp_state = HBA_NORMAL_TEMP;
 432         spin_unlock_irq(&phba->hbalock);
 433
 434         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 435         if (!pmb) {
 436                 phba->link_state = LPFC_HBA_ERROR;
 437                 return -ENOMEM;
 438         }
 439         mb = &pmb->u.mb;
 440
 441         /* Get login parameters for NID.  */
 442         rc = lpfc_read_sparam(phba, pmb, 0);
 443         if (rc) {
 444                 mempool_free(pmb, phba->mbox_mem_pool);
 445                 return -ENOMEM;
 446         }
 447
 448         pmb->vport = vport;
 449         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 450                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 451                                 "0448 Adapter failed init, mbxCmd x%x "
 452                                 "READ_SPARM mbxStatus x%x\n",
 453                                 mb->mbxCommand, mb->mbxStatus);
 454                 phba->link_state = LPFC_HBA_ERROR;
 455                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 456                 mempool_free(pmb, phba->mbox_mem_pool);
 457                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 458                 kfree(mp);
 459                 return -EIO;
 460         }
 461
 462         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 463
 464         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 465         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 466         kfree(mp);
 467         pmb->ctx_buf = NULL;
 468         lpfc_update_vport_wwn(vport);
 469
 470         /* Update the fc_host data structures with new wwn. */
 471         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 472         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 473         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 474
 475         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 476         /* This should be consolidated into parse_vpd ? - mr */
 477         if (phba->SerialNumber[0] == 0) {
 478                 uint8_t *outptr;
 479
 480                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 481                 for (i = 0; i < 12; i++) {
 482                         status = *outptr++;
 483                         j = ((status & 0xf0) >> 4);
 484                         if (j <= 9)
 485                                 phba->SerialNumber[i] =
 486                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 487                         else
 488                                 phba->SerialNumber[i] =
 489                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 490                         i++;
 491                         j = (status & 0xf);
 492                         if (j <= 9)
 493                                 phba->SerialNumber[i] =
 494                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 495                         else
 496                                 phba->SerialNumber[i] =
 497                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 498                 }
 499         }
 500
 501         lpfc_read_config(phba, pmb);
 502         pmb->vport = vport;
 503         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 504                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 505                                 "0453 Adapter failed to init, mbxCmd x%x "
 506                                 "READ_CONFIG, mbxStatus x%x\n",
 507                                 mb->mbxCommand, mb->mbxStatus);
 508                 phba->link_state = LPFC_HBA_ERROR;
 509                 mempool_free( pmb, phba->mbox_mem_pool);
 510                 return -EIO;
 511         }
 512
 513         /* Check if the port is disabled */
 514         lpfc_sli_read_link_ste(phba);
 515
 516         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 517         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 518                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 519                                 "3359 HBA queue depth changed from %d to %d\n",
 520                                 phba->cfg_hba_queue_depth,
 521                                 mb->un.varRdConfig.max_xri);
 522                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 523         }
 524
 525         phba->lmt = mb->un.varRdConfig.lmt;
 526
 527         /* Get the default values for Model Name and Description */
 528         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 529
 530         phba->link_state = LPFC_LINK_DOWN;
 531
 532         /* Only process IOCBs on ELS ring till hba_state is READY */
 533         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 534                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 535         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 536                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 537
 538         /* Post receive buffers for desired rings */
 539         if (phba->sli_rev != 3)
 540                 lpfc_post_rcv_buf(phba);
 541
 542         /*
 543          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 544          */
 545         if (phba->intr_type == MSIX) {
 546                 rc = lpfc_config_msi(phba, pmb);
 547                 if (rc) {
 548                         mempool_free(pmb, phba->mbox_mem_pool);
 549                         return -EIO;
 550                 }
 551                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 552                 if (rc != MBX_SUCCESS) {
 553                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 554                                         "0352 Config MSI mailbox command "
 555                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 556                                         pmb->u.mb.mbxCommand,
 557                                         pmb->u.mb.mbxStatus);
 558                         mempool_free(pmb, phba->mbox_mem_pool);
 559                         return -EIO;
 560                 }
 561         }
 562
 563         spin_lock_irq(&phba->hbalock);
 564         /* Initialize ERATT handling flag */
 565         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 566
 567         /* Enable appropriate host interrupts */
 568         if (lpfc_readl(phba->HCregaddr, &status)) {
 569                 spin_unlock_irq(&phba->hbalock);
 570                 return -EIO;
 571         }
 572         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 573         if (psli->num_rings > 0)
 574                 status |= HC_R0INT_ENA;
 575         if (psli->num_rings > 1)
 576                 status |= HC_R1INT_ENA;
 577         if (psli->num_rings > 2)
 578                 status |= HC_R2INT_ENA;
 579         if (psli->num_rings > 3)
 580                 status |= HC_R3INT_ENA;
 581
 582         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 583             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 584                 status &= ~(HC_R0INT_ENA);
 585
 586         writel(status, phba->HCregaddr);
 587         readl(phba->HCregaddr); /* flush */
 588         spin_unlock_irq(&phba->hbalock);
 589
 590         /* Set up ring-0 (ELS) timer */
 591         timeout = phba->fc_ratov * 2;
 592         mod_timer(&vport->els_tmofunc,
 593                   jiffies + msecs_to_jiffies(1000 * timeout));
 594         /* Set up heart beat (HB) timer */
 595         mod_timer(&phba->hb_tmofunc,
 596                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 597         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 598         phba->last_completion_time = jiffies;
 599         /* Set up error attention (ERATT) polling timer */
 600         mod_timer(&phba->eratt_poll,
 601                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 602
 603         if (phba->hba_flag & LINK_DISABLED) {
 604                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 605                                 "2598 Adapter Link is disabled.\n");
 606                 lpfc_down_link(phba, pmb);
 607                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 608                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 609                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 610                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 611                                         "2599 Adapter failed to issue DOWN_LINK"
 612                                         " mbox command rc 0x%x\n", rc);
 613
 614                         mempool_free(pmb, phba->mbox_mem_pool);
 615                         return -EIO;
 616                 }
 617         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 618                 mempool_free(pmb, phba->mbox_mem_pool);
 619                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 620                 if (rc)
 621                         return rc;
 622         }
 623         /* MBOX buffer will be freed in mbox compl */
 624         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 625         if (!pmb) {
 626                 phba->link_state = LPFC_HBA_ERROR;
 627                 return -ENOMEM;
 628         }
 629
 630         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 631         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 632         pmb->vport = phba->pport;
 633         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 634
 635         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 636                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 637                                 "0456 Adapter failed to issue "
 638                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 639                                 rc);
 640                 mempool_free(pmb, phba->mbox_mem_pool);
 641         }
 642
 643         /* Get Option rom version */
 644         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 645         if (!pmb) {
 646                 phba->link_state = LPFC_HBA_ERROR;
 647                 return -ENOMEM;
 648         }
 649
 650         lpfc_dump_wakeup_param(phba, pmb);
 651         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 652         pmb->vport = phba->pport;
 653         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 654
 655         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 656                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 657                                 "0435 Adapter failed "
 658                                 "to get Option ROM version status x%x\n", rc);
 659                 mempool_free(pmb, phba->mbox_mem_pool);
 660         }
 661
 662         return 0;
 663 }
 664
 665 /**
 666  * lpfc_sli4_refresh_params - update driver copy of params.
 667  * @phba: Pointer to HBA context object.
 668  *
 669  * This is called to refresh driver copy of dynamic fields from the
 670  * common_get_sli4_parameters descriptor.
 671  **/
 672 int
 673 lpfc_sli4_refresh_params(struct lpfc_hba *phba)
 674 {
 675         LPFC_MBOXQ_t *mboxq;
 676         struct lpfc_mqe *mqe;
 677         struct lpfc_sli4_parameters *mbx_sli4_parameters;
 678         int length, rc;
 679
 680         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 681         if (!mboxq)
 682                 return -ENOMEM;
 683
 684         mqe = &mboxq->u.mqe;
 685         /* Read the port's SLI4 Config Parameters */
 686         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
 687                   sizeof(struct lpfc_sli4_cfg_mhdr));
 688         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
 689                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
 690                          length, LPFC_SLI4_MBX_EMBED);
 691
 692         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 693         if (unlikely(rc)) {
 694                 mempool_free(mboxq, phba->mbox_mem_pool);
 695                 return rc;
 696         }
 697         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
 698         phba->sli4_hba.pc_sli4_params.mi_ver =
 699                         bf_get(cfg_mi_ver, mbx_sli4_parameters);
 700         phba->sli4_hba.pc_sli4_params.cmf =
 701                         bf_get(cfg_cmf, mbx_sli4_parameters);
 702         phba->sli4_hba.pc_sli4_params.pls =
 703                         bf_get(cfg_pvl, mbx_sli4_parameters);
 704
 705         mempool_free(mboxq, phba->mbox_mem_pool);
 706         return rc;
 707 }
 708
 709 /**
 710  * lpfc_hba_init_link - Initialize the FC link
 711  * @phba: pointer to lpfc hba data structure.
 712  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 713  *
 714  * This routine will issue the INIT_LINK mailbox command call.
 715  * It is available to other drivers through the lpfc_hba data
 716  * structure for use as a delayed link up mechanism with the
 717  * module parameter lpfc_suppress_link_up.
 718  *
 719  * Return code
 720  *              0 - success
 721  *              Any other value - error
 722  **/
 723 static int
 724 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 725 {
 726         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 727 }
 728
 729 /**
 730  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 731  * @phba: pointer to lpfc hba data structure.
 732  * @fc_topology: desired fc topology.
 733  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 734  *
 735  * This routine will issue the INIT_LINK mailbox command call.
 736  * It is available to other drivers through the lpfc_hba data
 737  * structure for use as a delayed link up mechanism with the
 738  * module parameter lpfc_suppress_link_up.
 739  *
 740  * Return code
 741  *              0 - success
 742  *              Any other value - error
 743  **/
 744 int
 745 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 746                                uint32_t flag)
 747 {
 748         struct lpfc_vport *vport = phba->pport;
 749         LPFC_MBOXQ_t *pmb;
 750         MAILBOX_t *mb;
 751         int rc;
 752
 753         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 754         if (!pmb) {
 755                 phba->link_state = LPFC_HBA_ERROR;
 756                 return -ENOMEM;
 757         }
 758         mb = &pmb->u.mb;
 759         pmb->vport = vport;
 760
 761         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 762             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 763              !(phba->lmt & LMT_1Gb)) ||
 764             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 765              !(phba->lmt & LMT_2Gb)) ||
 766             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 767              !(phba->lmt & LMT_4Gb)) ||
 768             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 769              !(phba->lmt & LMT_8Gb)) ||
 770             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 771              !(phba->lmt & LMT_10Gb)) ||
 772             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 773              !(phba->lmt & LMT_16Gb)) ||
 774             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 775              !(phba->lmt & LMT_32Gb)) ||
 776             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 777              !(phba->lmt & LMT_64Gb))) {
 778                 /* Reset link speed to auto */
 779                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 780                                 "1302 Invalid speed for this board:%d "
 781                                 "Reset link speed to auto.\n",
 782                                 phba->cfg_link_speed);
 783                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 784         }
 785         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 786         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 787         if (phba->sli_rev < LPFC_SLI_REV4)
 788                 lpfc_set_loopback_flag(phba);
 789         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 790         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 791                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 792                                 "0498 Adapter failed to init, mbxCmd x%x "
 793                                 "INIT_LINK, mbxStatus x%x\n",
 794                                 mb->mbxCommand, mb->mbxStatus);
 795                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 796                         /* Clear all interrupt enable conditions */
 797                         writel(0, phba->HCregaddr);
 798                         readl(phba->HCregaddr); /* flush */
 799                         /* Clear all pending interrupts */
 800                         writel(0xffffffff, phba->HAregaddr);
 801                         readl(phba->HAregaddr); /* flush */
 802                 }
 803                 phba->link_state = LPFC_HBA_ERROR;
 804                 if (rc != MBX_BUSY || flag == MBX_POLL)
 805                         mempool_free(pmb, phba->mbox_mem_pool);
 806                 return -EIO;
 807         }
 808         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 809         if (flag == MBX_POLL)
 810                 mempool_free(pmb, phba->mbox_mem_pool);
 811
 812         return 0;
 813 }
 814
 815 /**
 816  * lpfc_hba_down_link - this routine downs the FC link
 817  * @phba: pointer to lpfc hba data structure.
 818  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 819  *
 820  * This routine will issue the DOWN_LINK mailbox command call.
 821  * It is available to other drivers through the lpfc_hba data
 822  * structure for use to stop the link.
 823  *
 824  * Return code
 825  *              0 - success
 826  *              Any other value - error
 827  **/
 828 static int
 829 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 830 {
 831         LPFC_MBOXQ_t *pmb;
 832         int rc;
 833
 834         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 835         if (!pmb) {
 836                 phba->link_state = LPFC_HBA_ERROR;
 837                 return -ENOMEM;
 838         }
 839
 840         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 841                         "0491 Adapter Link is disabled.\n");
 842         lpfc_down_link(phba, pmb);
 843         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 844         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 845         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 846                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 847                                 "2522 Adapter failed to issue DOWN_LINK"
 848                                 " mbox command rc 0x%x\n", rc);
 849
 850                 mempool_free(pmb, phba->mbox_mem_pool);
 851                 return -EIO;
 852         }
 853         if (flag == MBX_POLL)
 854                 mempool_free(pmb, phba->mbox_mem_pool);
 855
 856         return 0;
 857 }
 858
 859 /**
 860  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 861  * @phba: pointer to lpfc HBA data structure.
 862  *
 863  * This routine will do LPFC uninitialization before the HBA is reset when
 864  * bringing down the SLI Layer.
 865  *
 866  * Return codes
 867  *   0 - success.
 868  *   Any other value - error.
 869  **/
 870 int
 871 lpfc_hba_down_prep(struct lpfc_hba *phba)
 872 {
 873         struct lpfc_vport **vports;
 874         int i;
 875
 876         if (phba->sli_rev <= LPFC_SLI_REV3) {
 877                 /* Disable interrupts */
 878                 writel(0, phba->HCregaddr);
 879                 readl(phba->HCregaddr); /* flush */
 880         }
 881
 882         if (phba->pport->load_flag & FC_UNLOADING)
 883                 lpfc_cleanup_discovery_resources(phba->pport);
 884         else {
 885                 vports = lpfc_create_vport_work_array(phba);
 886                 if (vports != NULL)
 887                         for (i = 0; i <= phba->max_vports &&
 888                                 vports[i] != NULL; i++)
 889                                 lpfc_cleanup_discovery_resources(vports[i]);
 890                 lpfc_destroy_vport_work_array(phba, vports);
 891         }
 892         return 0;
 893 }
 894
 895 /**
 896  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 897  * rspiocb which got deferred
 898  *
 899  * @phba: pointer to lpfc HBA data structure.
 900  *
 901  * This routine will cleanup completed slow path events after HBA is reset
 902  * when bringing down the SLI Layer.
 903  *
 904  *
 905  * Return codes
 906  *   void.
 907  **/
 908 static void
 909 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 910 {
 911         struct lpfc_iocbq *rspiocbq;
 912         struct hbq_dmabuf *dmabuf;
 913         struct lpfc_cq_event *cq_event;
 914
 915         spin_lock_irq(&phba->hbalock);
 916         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 917         spin_unlock_irq(&phba->hbalock);
 918
 919         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 920                 /* Get the response iocb from the head of work queue */
 921                 spin_lock_irq(&phba->hbalock);
 922                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 923                                  cq_event, struct lpfc_cq_event, list);
 924                 spin_unlock_irq(&phba->hbalock);
 925
 926                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 927                 case CQE_CODE_COMPL_WQE:
 928                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 929                                                  cq_event);
 930                         lpfc_sli_release_iocbq(phba, rspiocbq);
 931                         break;
 932                 case CQE_CODE_RECEIVE:
 933                 case CQE_CODE_RECEIVE_V1:
 934                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 935                                               cq_event);
 936                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 937                 }
 938         }
 939 }
 940
 941 /**
 942  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 943  * @phba: pointer to lpfc HBA data structure.
 944  *
 945  * This routine will cleanup posted ELS buffers after the HBA is reset
 946  * when bringing down the SLI Layer.
 947  *
 948  *
 949  * Return codes
 950  *   void.
 951  **/
 952 static void
 953 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 954 {
 955         struct lpfc_sli *psli = &phba->sli;
 956         struct lpfc_sli_ring *pring;
 957         struct lpfc_dmabuf *mp, *next_mp;
 958         LIST_HEAD(buflist);
 959         int count;
 960
 961         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 962                 lpfc_sli_hbqbuf_free_all(phba);
 963         else {
 964                 /* Cleanup preposted buffers on the ELS ring */
 965                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 966                 spin_lock_irq(&phba->hbalock);
 967                 list_splice_init(&pring->postbufq, &buflist);
 968                 spin_unlock_irq(&phba->hbalock);
 969
 970                 count = 0;
 971                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 972                         list_del(&mp->list);
 973                         count++;
 974                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 975                         kfree(mp);
 976                 }
 977
 978                 spin_lock_irq(&phba->hbalock);
 979                 pring->postbufq_cnt -= count;
 980                 spin_unlock_irq(&phba->hbalock);
 981         }
 982 }
 983
 984 /**
 985  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 986  * @phba: pointer to lpfc HBA data structure.
 987  *
 988  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 989  * down the SLI Layer.
 990  *
 991  * Return codes
 992  *   void
 993  **/
 994 static void
 995 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 996 {
 997         struct lpfc_sli *psli = &phba->sli;
 998         struct lpfc_queue *qp = NULL;
 999         struct lpfc_sli_ring *pring;
1000         LIST_HEAD(completions);
1001         int i;
1002         struct lpfc_iocbq *piocb, *next_iocb;
1003
1004         if (phba->sli_rev != LPFC_SLI_REV4) {
1005                 for (i = 0; i < psli->num_rings; i++) {
1006                         pring = &psli->sli3_ring[i];
1007                         spin_lock_irq(&phba->hbalock);
1008                         /* At this point in time the HBA is either reset or DOA
1009                          * Nothing should be on txcmplq as it will
1010                          * NEVER complete.
1011                          */
1012                         list_splice_init(&pring->txcmplq, &completions);
1013                         pring->txcmplq_cnt = 0;
1014                         spin_unlock_irq(&phba->hbalock);
1015
1016                         lpfc_sli_abort_iocb_ring(phba, pring);
1017                 }
1018                 /* Cancel all the IOCBs from the completions list */
1019                 lpfc_sli_cancel_iocbs(phba, &completions,
1020                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1021                 return;
1022         }
1023         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
1024                 pring = qp->pring;
1025                 if (!pring)
1026                         continue;
1027                 spin_lock_irq(&pring->ring_lock);
1028                 list_for_each_entry_safe(piocb, next_iocb,
1029                                          &pring->txcmplq, list)
1030                         piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
1031                 list_splice_init(&pring->txcmplq, &completions);
1032                 pring->txcmplq_cnt = 0;
1033                 spin_unlock_irq(&pring->ring_lock);
1034                 lpfc_sli_abort_iocb_ring(phba, pring);
1035         }
1036         /* Cancel all the IOCBs from the completions list */
1037         lpfc_sli_cancel_iocbs(phba, &completions,
1038                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
1039 }
1040
1041 /**
1042  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
1043  * @phba: pointer to lpfc HBA data structure.
1044  *
1045  * This routine will do uninitialization after the HBA is reset when bring
1046  * down the SLI Layer.
1047  *
1048  * Return codes
1049  *   0 - success.
1050  *   Any other value - error.
1051  **/
1052 static int
1053 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1054 {
1055         lpfc_hba_free_post_buf(phba);
1056         lpfc_hba_clean_txcmplq(phba);
1057         return 0;
1058 }
1059
1060 /**
1061  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1062  * @phba: pointer to lpfc HBA data structure.
1063  *
1064  * This routine will do uninitialization after the HBA is reset when bring
1065  * down the SLI Layer.
1066  *
1067  * Return codes
1068  *   0 - success.
1069  *   Any other value - error.
1070  **/
1071 static int
1072 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1073 {
1074         struct lpfc_io_buf *psb, *psb_next;
1075         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1076         struct lpfc_sli4_hdw_queue *qp;
1077         LIST_HEAD(aborts);
1078         LIST_HEAD(nvme_aborts);
1079         LIST_HEAD(nvmet_aborts);
1080         struct lpfc_sglq *sglq_entry = NULL;
1081         int cnt, idx;
1082
1083
1084         lpfc_sli_hbqbuf_free_all(phba);
1085         lpfc_hba_clean_txcmplq(phba);
1086
1087         /* At this point in time the HBA is either reset or DOA. Either
1088          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1089          * on the lpfc_els_sgl_list so that it can either be freed if the
1090          * driver is unloading or reposted if the driver is restarting
1091          * the port.
1092          */
1093
1094         /* sgl_list_lock required because worker thread uses this
1095          * list.
1096          */
1097         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1098         list_for_each_entry(sglq_entry,
1099                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1100                 sglq_entry->state = SGL_FREED;
1101
1102         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1103                         &phba->sli4_hba.lpfc_els_sgl_list);
1104
1105
1106         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1107
1108         /* abts_xxxx_buf_list_lock required because worker thread uses this
1109          * list.
1110          */
1111         spin_lock_irq(&phba->hbalock);
1112         cnt = 0;
1113         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1114                 qp = &phba->sli4_hba.hdwq[idx];
1115
1116                 spin_lock(&qp->abts_io_buf_list_lock);
1117                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1118                                  &aborts);
1119
1120                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1121                         psb->pCmd = NULL;
1122                         psb->status = IOSTAT_SUCCESS;
1123                         cnt++;
1124                 }
1125                 spin_lock(&qp->io_buf_list_put_lock);
1126                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1127                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1128                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1129                 qp->abts_scsi_io_bufs = 0;
1130                 qp->abts_nvme_io_bufs = 0;
1131                 spin_unlock(&qp->io_buf_list_put_lock);
1132                 spin_unlock(&qp->abts_io_buf_list_lock);
1133         }
1134         spin_unlock_irq(&phba->hbalock);
1135
1136         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1137                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1138                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1139                                  &nvmet_aborts);
1140                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1141                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1142                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1143                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1144                 }
1145         }
1146
1147         lpfc_sli4_free_sp_events(phba);
1148         return cnt;
1149 }
1150
1151 /**
1152  * lpfc_hba_down_post - Wrapper func for hba down post routine
1153  * @phba: pointer to lpfc HBA data structure.
1154  *
1155  * This routine wraps the actual SLI3 or SLI4 routine for performing
1156  * uninitialization after the HBA is reset when bring down the SLI Layer.
1157  *
1158  * Return codes
1159  *   0 - success.
1160  *   Any other value - error.
1161  **/
1162 int
1163 lpfc_hba_down_post(struct lpfc_hba *phba)
1164 {
1165         return (*phba->lpfc_hba_down_post)(phba);
1166 }
1167
1168 /**
1169  * lpfc_hb_timeout - The HBA-timer timeout handler
1170  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1171  *
1172  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1173  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1174  * work-port-events bitmap and the worker thread is notified. This timeout
1175  * event will be used by the worker thread to invoke the actual timeout
1176  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1177  * be performed in the timeout handler and the HBA timeout event bit shall
1178  * be cleared by the worker thread after it has taken the event bitmap out.
1179  **/
1180 static void
1181 lpfc_hb_timeout(struct timer_list *t)
1182 {
1183         struct lpfc_hba *phba;
1184         uint32_t tmo_posted;
1185         unsigned long iflag;
1186
1187         phba = from_timer(phba, t, hb_tmofunc);
1188
1189         /* Check for heart beat timeout conditions */
1190         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1191         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1192         if (!tmo_posted)
1193                 phba->pport->work_port_events |= WORKER_HB_TMO;
1194         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1195
1196         /* Tell the worker thread there is work to do */
1197         if (!tmo_posted)
1198                 lpfc_worker_wake_up(phba);
1199         return;
1200 }
1201
1202 /**
1203  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1204  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1205  *
1206  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1207  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1208  * work-port-events bitmap and the worker thread is notified. This timeout
1209  * event will be used by the worker thread to invoke the actual timeout
1210  * handler routine, lpfc_rrq_handler. Any periodical operations will
1211  * be performed in the timeout handler and the RRQ timeout event bit shall
1212  * be cleared by the worker thread after it has taken the event bitmap out.
1213  **/
1214 static void
1215 lpfc_rrq_timeout(struct timer_list *t)
1216 {
1217         struct lpfc_hba *phba;
1218         unsigned long iflag;
1219
1220         phba = from_timer(phba, t, rrq_tmr);
1221         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1222         if (!(phba->pport->load_flag & FC_UNLOADING))
1223                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1224         else
1225                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1226         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1227
1228         if (!(phba->pport->load_flag & FC_UNLOADING))
1229                 lpfc_worker_wake_up(phba);
1230 }
1231
1232 /**
1233  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1234  * @phba: pointer to lpfc hba data structure.
1235  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1236  *
1237  * This is the callback function to the lpfc heart-beat mailbox command.
1238  * If configured, the lpfc driver issues the heart-beat mailbox command to
1239  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1240  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1241  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1242  * heart-beat outstanding state. Once the mailbox command comes back and
1243  * no error conditions detected, the heart-beat mailbox command timer is
1244  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1245  * state is cleared for the next heart-beat. If the timer expired with the
1246  * heart-beat outstanding state set, the driver will put the HBA offline.
1247  **/
1248 static void
1249 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1250 {
1251         unsigned long drvr_flag;
1252
1253         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1254         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1255         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1256
1257         /* Check and reset heart-beat timer if necessary */
1258         mempool_free(pmboxq, phba->mbox_mem_pool);
1259         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1260                 !(phba->link_state == LPFC_HBA_ERROR) &&
1261                 !(phba->pport->load_flag & FC_UNLOADING))
1262                 mod_timer(&phba->hb_tmofunc,
1263                           jiffies +
1264                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1265         return;
1266 }
1267
1268 /*
1269  * lpfc_idle_stat_delay_work - idle_stat tracking
1270  *
1271  * This routine tracks per-cq idle_stat and determines polling decisions.
1272  *
1273  * Return codes:
1274  *   None
1275  **/
1276 static void
1277 lpfc_idle_stat_delay_work(struct work_struct *work)
1278 {
1279         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1280                                              struct lpfc_hba,
1281                                              idle_stat_delay_work);
1282         struct lpfc_queue *cq;
1283         struct lpfc_sli4_hdw_queue *hdwq;
1284         struct lpfc_idle_stat *idle_stat;
1285         u32 i, idle_percent;
1286         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1287
1288         if (phba->pport->load_flag & FC_UNLOADING)
1289                 return;
1290
1291         if (phba->link_state == LPFC_HBA_ERROR ||
1292             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1293             phba->cmf_active_mode != LPFC_CFG_OFF)
1294                 goto requeue;
1295
1296         for_each_present_cpu(i) {
1297                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1298                 cq = hdwq->io_cq;
1299
1300                 /* Skip if we've already handled this cq's primary CPU */
1301                 if (cq->chann != i)
1302                         continue;
1303
1304                 idle_stat = &phba->sli4_hba.idle_stat[i];
1305
1306                 /* get_cpu_idle_time returns values as running counters. Thus,
1307                  * to know the amount for this period, the prior counter values
1308                  * need to be subtracted from the current counter values.
1309                  * From there, the idle time stat can be calculated as a
1310                  * percentage of 100 - the sum of the other consumption times.
1311                  */
1312                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1313                 diff_idle = wall_idle - idle_stat->prev_idle;
1314                 diff_wall = wall - idle_stat->prev_wall;
1315
1316                 if (diff_wall <= diff_idle)
1317                         busy_time = 0;
1318                 else
1319                         busy_time = diff_wall - diff_idle;
1320
1321                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1322                 idle_percent = 100 - idle_percent;
1323
1324                 if (idle_percent < 15)
1325                         cq->poll_mode = LPFC_QUEUE_WORK;
1326                 else
1327                         cq->poll_mode = LPFC_IRQ_POLL;
1328
1329                 idle_stat->prev_idle = wall_idle;
1330                 idle_stat->prev_wall = wall;
1331         }
1332
1333 requeue:
1334         schedule_delayed_work(&phba->idle_stat_delay_work,
1335                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1336 }
1337
1338 static void
1339 lpfc_hb_eq_delay_work(struct work_struct *work)
1340 {
1341         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1342                                              struct lpfc_hba, eq_delay_work);
1343         struct lpfc_eq_intr_info *eqi, *eqi_new;
1344         struct lpfc_queue *eq, *eq_next;
1345         unsigned char *ena_delay = NULL;
1346         uint32_t usdelay;
1347         int i;
1348
1349         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1350                 return;
1351
1352         if (phba->link_state == LPFC_HBA_ERROR ||
1353             phba->pport->fc_flag & FC_OFFLINE_MODE)
1354                 goto requeue;
1355
1356         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1357                             GFP_KERNEL);
1358         if (!ena_delay)
1359                 goto requeue;
1360
1361         for (i = 0; i < phba->cfg_irq_chann; i++) {
1362                 /* Get the EQ corresponding to the IRQ vector */
1363                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1364                 if (!eq)
1365                         continue;
1366                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1367                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1368                         ena_delay[eq->last_cpu] = 1;
1369                 }
1370         }
1371
1372         for_each_present_cpu(i) {
1373                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1374                 if (ena_delay[i]) {
1375                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1376                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1377                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1378                 } else {
1379                         usdelay = 0;
1380                 }
1381
1382                 eqi->icnt = 0;
1383
1384                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1385                         if (unlikely(eq->last_cpu != i)) {
1386                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1387                                                       eq->last_cpu);
1388                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1389                                 continue;
1390                         }
1391                         if (usdelay != eq->q_mode)
1392                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1393                                                          usdelay);
1394                 }
1395         }
1396
1397         kfree(ena_delay);
1398
1399 requeue:
1400         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1401                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1402 }
1403
1404 /**
1405  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1406  * @phba: pointer to lpfc hba data structure.
1407  *
1408  * For each heartbeat, this routine does some heuristic methods to adjust
1409  * XRI distribution. The goal is to fully utilize free XRIs.
1410  **/
1411 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1412 {
1413         u32 i;
1414         u32 hwq_count;
1415
1416         hwq_count = phba->cfg_hdw_queue;
1417         for (i = 0; i < hwq_count; i++) {
1418                 /* Adjust XRIs in private pool */
1419                 lpfc_adjust_pvt_pool_count(phba, i);
1420
1421                 /* Adjust high watermark */
1422                 lpfc_adjust_high_watermark(phba, i);
1423
1424 #ifdef LPFC_MXP_STAT
1425                 /* Snapshot pbl, pvt and busy count */
1426                 lpfc_snapshot_mxp(phba, i);
1427 #endif
1428         }
1429 }
1430
1431 /**
1432  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1433  * @phba: pointer to lpfc hba data structure.
1434  *
1435  * If a HB mbox is not already in progrees, this routine will allocate
1436  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1437  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1438  **/
1439 int
1440 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1441 {
1442         LPFC_MBOXQ_t *pmboxq;
1443         int retval;
1444
1445         /* Is a Heartbeat mbox already in progress */
1446         if (phba->hba_flag & HBA_HBEAT_INP)
1447                 return 0;
1448
1449         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1450         if (!pmboxq)
1451                 return -ENOMEM;
1452
1453         lpfc_heart_beat(phba, pmboxq);
1454         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1455         pmboxq->vport = phba->pport;
1456         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1457
1458         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1459                 mempool_free(pmboxq, phba->mbox_mem_pool);
1460                 return -ENXIO;
1461         }
1462         phba->hba_flag |= HBA_HBEAT_INP;
1463
1464         return 0;
1465 }
1466
1467 /**
1468  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1469  * @phba: pointer to lpfc hba data structure.
1470  *
1471  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1472  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1473  * of the value of lpfc_enable_hba_heartbeat.
1474  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1475  * try to issue a MBX_HEARTBEAT mbox command.
1476  **/
1477 void
1478 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1479 {
1480         if (phba->cfg_enable_hba_heartbeat)
1481                 return;
1482         phba->hba_flag |= HBA_HBEAT_TMO;
1483 }
1484
1485 /**
1486  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1487  * @phba: pointer to lpfc hba data structure.
1488  *
1489  * This is the actual HBA-timer timeout handler to be invoked by the worker
1490  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1491  * handler performs any periodic operations needed for the device. If such
1492  * periodic event has already been attended to either in the interrupt handler
1493  * or by processing slow-ring or fast-ring events within the HBA-timer
1494  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1495  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1496  * is configured and there is no heart-beat mailbox command outstanding, a
1497  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1498  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1499  * to offline.
1500  **/
1501 void
1502 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1503 {
1504         struct lpfc_vport **vports;
1505         struct lpfc_dmabuf *buf_ptr;
1506         int retval = 0;
1507         int i, tmo;
1508         struct lpfc_sli *psli = &phba->sli;
1509         LIST_HEAD(completions);
1510
1511         if (phba->cfg_xri_rebalancing) {
1512                 /* Multi-XRI pools handler */
1513                 lpfc_hb_mxp_handler(phba);
1514         }
1515
1516         vports = lpfc_create_vport_work_array(phba);
1517         if (vports != NULL)
1518                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1519                         lpfc_rcv_seq_check_edtov(vports[i]);
1520                         lpfc_fdmi_change_check(vports[i]);
1521                 }
1522         lpfc_destroy_vport_work_array(phba, vports);
1523
1524         if ((phba->link_state == LPFC_HBA_ERROR) ||
1525                 (phba->pport->load_flag & FC_UNLOADING) ||
1526                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1527                 return;
1528
1529         if (phba->elsbuf_cnt &&
1530                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1531                 spin_lock_irq(&phba->hbalock);
1532                 list_splice_init(&phba->elsbuf, &completions);
1533                 phba->elsbuf_cnt = 0;
1534                 phba->elsbuf_prev_cnt = 0;
1535                 spin_unlock_irq(&phba->hbalock);
1536
1537                 while (!list_empty(&completions)) {
1538                         list_remove_head(&completions, buf_ptr,
1539                                 struct lpfc_dmabuf, list);
1540                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1541                         kfree(buf_ptr);
1542                 }
1543         }
1544         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1545
1546         /* If there is no heart beat outstanding, issue a heartbeat command */
1547         if (phba->cfg_enable_hba_heartbeat) {
1548                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1549                 spin_lock_irq(&phba->pport->work_port_lock);
1550                 if (time_after(phba->last_completion_time +
1551                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1552                                 jiffies)) {
1553                         spin_unlock_irq(&phba->pport->work_port_lock);
1554                         if (phba->hba_flag & HBA_HBEAT_INP)
1555                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1556                         else
1557                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1558                         goto out;
1559                 }
1560                 spin_unlock_irq(&phba->pport->work_port_lock);
1561
1562                 /* Check if a MBX_HEARTBEAT is already in progress */
1563                 if (phba->hba_flag & HBA_HBEAT_INP) {
1564                         /*
1565                          * If heart beat timeout called with HBA_HBEAT_INP set
1566                          * we need to give the hb mailbox cmd a chance to
1567                          * complete or TMO.
1568                          */
1569                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1570                                 "0459 Adapter heartbeat still outstanding: "
1571                                 "last compl time was %d ms.\n",
1572                                 jiffies_to_msecs(jiffies
1573                                          - phba->last_completion_time));
1574                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1575                 } else {
1576                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1577                                 (list_empty(&psli->mboxq))) {
1578
1579                                 retval = lpfc_issue_hb_mbox(phba);
1580                                 if (retval) {
1581                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1582                                         goto out;
1583                                 }
1584                                 phba->skipped_hb = 0;
1585                         } else if (time_before_eq(phba->last_completion_time,
1586                                         phba->skipped_hb)) {
1587                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1588                                         "2857 Last completion time not "
1589                                         " updated in %d ms\n",
1590                                         jiffies_to_msecs(jiffies
1591                                                  - phba->last_completion_time));
1592                         } else
1593                                 phba->skipped_hb = jiffies;
1594
1595                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1596                         goto out;
1597                 }
1598         } else {
1599                 /* Check to see if we want to force a MBX_HEARTBEAT */
1600                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1601                         retval = lpfc_issue_hb_mbox(phba);
1602                         if (retval)
1603                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1604                         else
1605                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1606                         goto out;
1607                 }
1608                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1609         }
1610 out:
1611         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1612 }
1613
1614 /**
1615  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1616  * @phba: pointer to lpfc hba data structure.
1617  *
1618  * This routine is called to bring the HBA offline when HBA hardware error
1619  * other than Port Error 6 has been detected.
1620  **/
1621 static void
1622 lpfc_offline_eratt(struct lpfc_hba *phba)
1623 {
1624         struct lpfc_sli   *psli = &phba->sli;
1625
1626         spin_lock_irq(&phba->hbalock);
1627         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1628         spin_unlock_irq(&phba->hbalock);
1629         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1630
1631         lpfc_offline(phba);
1632         lpfc_reset_barrier(phba);
1633         spin_lock_irq(&phba->hbalock);
1634         lpfc_sli_brdreset(phba);
1635         spin_unlock_irq(&phba->hbalock);
1636         lpfc_hba_down_post(phba);
1637         lpfc_sli_brdready(phba, HS_MBRDY);
1638         lpfc_unblock_mgmt_io(phba);
1639         phba->link_state = LPFC_HBA_ERROR;
1640         return;
1641 }
1642
1643 /**
1644  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1645  * @phba: pointer to lpfc hba data structure.
1646  *
1647  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1648  * other than Port Error 6 has been detected.
1649  **/
1650 void
1651 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1652 {
1653         spin_lock_irq(&phba->hbalock);
1654         if (phba->link_state == LPFC_HBA_ERROR &&
1655             phba->hba_flag & HBA_PCI_ERR) {
1656                 spin_unlock_irq(&phba->hbalock);
1657                 return;
1658         }
1659         phba->link_state = LPFC_HBA_ERROR;
1660         spin_unlock_irq(&phba->hbalock);
1661
1662         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1663         lpfc_sli_flush_io_rings(phba);
1664         lpfc_offline(phba);
1665         lpfc_hba_down_post(phba);
1666         lpfc_unblock_mgmt_io(phba);
1667 }
1668
1669 /**
1670  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1671  * @phba: pointer to lpfc hba data structure.
1672  *
1673  * This routine is invoked to handle the deferred HBA hardware error
1674  * conditions. This type of error is indicated by HBA by setting ER1
1675  * and another ER bit in the host status register. The driver will
1676  * wait until the ER1 bit clears before handling the error condition.
1677  **/
1678 static void
1679 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1680 {
1681         uint32_t old_host_status = phba->work_hs;
1682         struct lpfc_sli *psli = &phba->sli;
1683
1684         /* If the pci channel is offline, ignore possible errors,
1685          * since we cannot communicate with the pci card anyway.
1686          */
1687         if (pci_channel_offline(phba->pcidev)) {
1688                 spin_lock_irq(&phba->hbalock);
1689                 phba->hba_flag &= ~DEFER_ERATT;
1690                 spin_unlock_irq(&phba->hbalock);
1691                 return;
1692         }
1693
1694         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1695                         "0479 Deferred Adapter Hardware Error "
1696                         "Data: x%x x%x x%x\n",
1697                         phba->work_hs, phba->work_status[0],
1698                         phba->work_status[1]);
1699
1700         spin_lock_irq(&phba->hbalock);
1701         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1702         spin_unlock_irq(&phba->hbalock);
1703
1704
1705         /*
1706          * Firmware stops when it triggred erratt. That could cause the I/Os
1707          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1708          * SCSI layer retry it after re-establishing link.
1709          */
1710         lpfc_sli_abort_fcp_rings(phba);
1711
1712         /*
1713          * There was a firmware error. Take the hba offline and then
1714          * attempt to restart it.
1715          */
1716         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1717         lpfc_offline(phba);
1718
1719         /* Wait for the ER1 bit to clear.*/
1720         while (phba->work_hs & HS_FFER1) {
1721                 msleep(100);
1722                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1723                         phba->work_hs = UNPLUG_ERR ;
1724                         break;
1725                 }
1726                 /* If driver is unloading let the worker thread continue */
1727                 if (phba->pport->load_flag & FC_UNLOADING) {
1728                         phba->work_hs = 0;
1729                         break;
1730                 }
1731         }
1732
1733         /*
1734          * This is to ptrotect against a race condition in which
1735          * first write to the host attention register clear the
1736          * host status register.
1737          */
1738         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1739                 phba->work_hs = old_host_status & ~HS_FFER1;
1740
1741         spin_lock_irq(&phba->hbalock);
1742         phba->hba_flag &= ~DEFER_ERATT;
1743         spin_unlock_irq(&phba->hbalock);
1744         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1745         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1746 }
1747
1748 static void
1749 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1750 {
1751         struct lpfc_board_event_header board_event;
1752         struct Scsi_Host *shost;
1753
1754         board_event.event_type = FC_REG_BOARD_EVENT;
1755         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1756         shost = lpfc_shost_from_vport(phba->pport);
1757         fc_host_post_vendor_event(shost, fc_get_event_number(),
1758                                   sizeof(board_event),
1759                                   (char *) &board_event,
1760                                   LPFC_NL_VENDOR_ID);
1761 }
1762
1763 /**
1764  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1765  * @phba: pointer to lpfc hba data structure.
1766  *
1767  * This routine is invoked to handle the following HBA hardware error
1768  * conditions:
1769  * 1 - HBA error attention interrupt
1770  * 2 - DMA ring index out of range
1771  * 3 - Mailbox command came back as unknown
1772  **/
1773 static void
1774 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1775 {
1776         struct lpfc_vport *vport = phba->pport;
1777         struct lpfc_sli   *psli = &phba->sli;
1778         uint32_t event_data;
1779         unsigned long temperature;
1780         struct temp_event temp_event_data;
1781         struct Scsi_Host  *shost;
1782
1783         /* If the pci channel is offline, ignore possible errors,
1784          * since we cannot communicate with the pci card anyway.
1785          */
1786         if (pci_channel_offline(phba->pcidev)) {
1787                 spin_lock_irq(&phba->hbalock);
1788                 phba->hba_flag &= ~DEFER_ERATT;
1789                 spin_unlock_irq(&phba->hbalock);
1790                 return;
1791         }
1792
1793         /* If resets are disabled then leave the HBA alone and return */
1794         if (!phba->cfg_enable_hba_reset)
1795                 return;
1796
1797         /* Send an internal error event to mgmt application */
1798         lpfc_board_errevt_to_mgmt(phba);
1799
1800         if (phba->hba_flag & DEFER_ERATT)
1801                 lpfc_handle_deferred_eratt(phba);
1802
1803         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1804                 if (phba->work_hs & HS_FFER6)
1805                         /* Re-establishing Link */
1806                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1807                                         "1301 Re-establishing Link "
1808                                         "Data: x%x x%x x%x\n",
1809                                         phba->work_hs, phba->work_status[0],
1810                                         phba->work_status[1]);
1811                 if (phba->work_hs & HS_FFER8)
1812                         /* Device Zeroization */
1813                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1814                                         "2861 Host Authentication device "
1815                                         "zeroization Data:x%x x%x x%x\n",
1816                                         phba->work_hs, phba->work_status[0],
1817                                         phba->work_status[1]);
1818
1819                 spin_lock_irq(&phba->hbalock);
1820                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1821                 spin_unlock_irq(&phba->hbalock);
1822
1823                 /*
1824                 * Firmware stops when it triggled erratt with HS_FFER6.
1825                 * That could cause the I/Os dropped by the firmware.
1826                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1827                 * retry it after re-establishing link.
1828                 */
1829                 lpfc_sli_abort_fcp_rings(phba);
1830
1831                 /*
1832                  * There was a firmware error.  Take the hba offline and then
1833                  * attempt to restart it.
1834                  */
1835                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1836                 lpfc_offline(phba);
1837                 lpfc_sli_brdrestart(phba);
1838                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1839                         lpfc_unblock_mgmt_io(phba);
1840                         return;
1841                 }
1842                 lpfc_unblock_mgmt_io(phba);
1843         } else if (phba->work_hs & HS_CRIT_TEMP) {
1844                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1845                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1846                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1847                 temp_event_data.data = (uint32_t)temperature;
1848
1849                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1850                                 "0406 Adapter maximum temperature exceeded "
1851                                 "(%ld), taking this port offline "
1852                                 "Data: x%x x%x x%x\n",
1853                                 temperature, phba->work_hs,
1854                                 phba->work_status[0], phba->work_status[1]);
1855
1856                 shost = lpfc_shost_from_vport(phba->pport);
1857                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1858                                           sizeof(temp_event_data),
1859                                           (char *) &temp_event_data,
1860                                           SCSI_NL_VID_TYPE_PCI
1861                                           | PCI_VENDOR_ID_EMULEX);
1862
1863                 spin_lock_irq(&phba->hbalock);
1864                 phba->over_temp_state = HBA_OVER_TEMP;
1865                 spin_unlock_irq(&phba->hbalock);
1866                 lpfc_offline_eratt(phba);
1867
1868         } else {
1869                 /* The if clause above forces this code path when the status
1870                  * failure is a value other than FFER6. Do not call the offline
1871                  * twice. This is the adapter hardware error path.
1872                  */
1873                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1874                                 "0457 Adapter Hardware Error "
1875                                 "Data: x%x x%x x%x\n",
1876                                 phba->work_hs,
1877                                 phba->work_status[0], phba->work_status[1]);
1878
1879                 event_data = FC_REG_DUMP_EVENT;
1880                 shost = lpfc_shost_from_vport(vport);
1881                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1882                                 sizeof(event_data), (char *) &event_data,
1883                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1884
1885                 lpfc_offline_eratt(phba);
1886         }
1887         return;
1888 }
1889
1890 /**
1891  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1892  * @phba: pointer to lpfc hba data structure.
1893  * @mbx_action: flag for mailbox shutdown action.
1894  * @en_rn_msg: send reset/port recovery message.
1895  * This routine is invoked to perform an SLI4 port PCI function reset in
1896  * response to port status register polling attention. It waits for port
1897  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1898  * During this process, interrupt vectors are freed and later requested
1899  * for handling possible port resource change.
1900  **/
1901 static int
1902 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1903                             bool en_rn_msg)
1904 {
1905         int rc;
1906         uint32_t intr_mode;
1907         LPFC_MBOXQ_t *mboxq;
1908
1909         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1910             LPFC_SLI_INTF_IF_TYPE_2) {
1911                 /*
1912                  * On error status condition, driver need to wait for port
1913                  * ready before performing reset.
1914                  */
1915                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1916                 if (rc)
1917                         return rc;
1918         }
1919
1920         /* need reset: attempt for port recovery */
1921         if (en_rn_msg)
1922                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1923                                 "2887 Reset Needed: Attempting Port "
1924                                 "Recovery...\n");
1925
1926         /* If we are no wait, the HBA has been reset and is not
1927          * functional, thus we should clear
1928          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1929          */
1930         if (mbx_action == LPFC_MBX_NO_WAIT) {
1931                 spin_lock_irq(&phba->hbalock);
1932                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1933                 if (phba->sli.mbox_active) {
1934                         mboxq = phba->sli.mbox_active;
1935                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1936                         __lpfc_mbox_cmpl_put(phba, mboxq);
1937                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1938                         phba->sli.mbox_active = NULL;
1939                 }
1940                 spin_unlock_irq(&phba->hbalock);
1941         }
1942
1943         lpfc_offline_prep(phba, mbx_action);
1944         lpfc_sli_flush_io_rings(phba);
1945         lpfc_offline(phba);
1946         /* release interrupt for possible resource change */
1947         lpfc_sli4_disable_intr(phba);
1948         rc = lpfc_sli_brdrestart(phba);
1949         if (rc) {
1950                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1951                                 "6309 Failed to restart board\n");
1952                 return rc;
1953         }
1954         /* request and enable interrupt */
1955         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1956         if (intr_mode == LPFC_INTR_ERROR) {
1957                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1958                                 "3175 Failed to enable interrupt\n");
1959                 return -EIO;
1960         }
1961         phba->intr_mode = intr_mode;
1962         rc = lpfc_online(phba);
1963         if (rc == 0)
1964                 lpfc_unblock_mgmt_io(phba);
1965
1966         return rc;
1967 }
1968
1969 /**
1970  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1971  * @phba: pointer to lpfc hba data structure.
1972  *
1973  * This routine is invoked to handle the SLI4 HBA hardware error attention
1974  * conditions.
1975  **/
1976 static void
1977 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1978 {
1979         struct lpfc_vport *vport = phba->pport;
1980         uint32_t event_data;
1981         struct Scsi_Host *shost;
1982         uint32_t if_type;
1983         struct lpfc_register portstat_reg = {0};
1984         uint32_t reg_err1, reg_err2;
1985         uint32_t uerrlo_reg, uemasklo_reg;
1986         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1987         bool en_rn_msg = true;
1988         struct temp_event temp_event_data;
1989         struct lpfc_register portsmphr_reg;
1990         int rc, i;
1991
1992         /* If the pci channel is offline, ignore possible errors, since
1993          * we cannot communicate with the pci card anyway.
1994          */
1995         if (pci_channel_offline(phba->pcidev)) {
1996                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1997                                 "3166 pci channel is offline\n");
1998                 return;
1999         }
2000
2001         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
2002         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
2003         switch (if_type) {
2004         case LPFC_SLI_INTF_IF_TYPE_0:
2005                 pci_rd_rc1 = lpfc_readl(
2006                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
2007                                 &uerrlo_reg);
2008                 pci_rd_rc2 = lpfc_readl(
2009                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
2010                                 &uemasklo_reg);
2011                 /* consider PCI bus read error as pci_channel_offline */
2012                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
2013                         return;
2014                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
2015                         lpfc_sli4_offline_eratt(phba);
2016                         return;
2017                 }
2018                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2019                                 "7623 Checking UE recoverable");
2020
2021                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
2022                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2023                                        &portsmphr_reg.word0))
2024                                 continue;
2025
2026                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
2027                                                    &portsmphr_reg);
2028                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2029                             LPFC_PORT_SEM_UE_RECOVERABLE)
2030                                 break;
2031                         /*Sleep for 1Sec, before checking SEMAPHORE */
2032                         msleep(1000);
2033                 }
2034
2035                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2036                                 "4827 smphr_port_status x%x : Waited %dSec",
2037                                 smphr_port_status, i);
2038
2039                 /* Recoverable UE, reset the HBA device */
2040                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
2041                     LPFC_PORT_SEM_UE_RECOVERABLE) {
2042                         for (i = 0; i < 20; i++) {
2043                                 msleep(1000);
2044                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2045                                     &portsmphr_reg.word0) &&
2046                                     (LPFC_POST_STAGE_PORT_READY ==
2047                                      bf_get(lpfc_port_smphr_port_status,
2048                                      &portsmphr_reg))) {
2049                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2050                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2051                                         if (rc == 0)
2052                                                 return;
2053                                         lpfc_printf_log(phba, KERN_ERR,
2054                                                 LOG_TRACE_EVENT,
2055                                                 "4215 Failed to recover UE");
2056                                         break;
2057                                 }
2058                         }
2059                 }
2060                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2061                                 "7624 Firmware not ready: Failing UE recovery,"
2062                                 " waited %dSec", i);
2063                 phba->link_state = LPFC_HBA_ERROR;
2064                 break;
2065
2066         case LPFC_SLI_INTF_IF_TYPE_2:
2067         case LPFC_SLI_INTF_IF_TYPE_6:
2068                 pci_rd_rc1 = lpfc_readl(
2069                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2070                                 &portstat_reg.word0);
2071                 /* consider PCI bus read error as pci_channel_offline */
2072                 if (pci_rd_rc1 == -EIO) {
2073                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2074                                 "3151 PCI bus read access failure: x%x\n",
2075                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2076                         lpfc_sli4_offline_eratt(phba);
2077                         return;
2078                 }
2079                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2080                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2081                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2082                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2083                                         "2889 Port Overtemperature event, "
2084                                         "taking port offline Data: x%x x%x\n",
2085                                         reg_err1, reg_err2);
2086
2087                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2088                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2089                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2090                         temp_event_data.data = 0xFFFFFFFF;
2091
2092                         shost = lpfc_shost_from_vport(phba->pport);
2093                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2094                                                   sizeof(temp_event_data),
2095                                                   (char *)&temp_event_data,
2096                                                   SCSI_NL_VID_TYPE_PCI
2097                                                   | PCI_VENDOR_ID_EMULEX);
2098
2099                         spin_lock_irq(&phba->hbalock);
2100                         phba->over_temp_state = HBA_OVER_TEMP;
2101                         spin_unlock_irq(&phba->hbalock);
2102                         lpfc_sli4_offline_eratt(phba);
2103                         return;
2104                 }
2105                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2106                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2107                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2108                                         "3143 Port Down: Firmware Update "
2109                                         "Detected\n");
2110                         en_rn_msg = false;
2111                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2112                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2113                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2114                                         "3144 Port Down: Debug Dump\n");
2115                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2116                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2117                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2118                                         "3145 Port Down: Provisioning\n");
2119
2120                 /* If resets are disabled then leave the HBA alone and return */
2121                 if (!phba->cfg_enable_hba_reset)
2122                         return;
2123
2124                 /* Check port status register for function reset */
2125                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2126                                 en_rn_msg);
2127                 if (rc == 0) {
2128                         /* don't report event on forced debug dump */
2129                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2130                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2131                                 return;
2132                         else
2133                                 break;
2134                 }
2135                 /* fall through for not able to recover */
2136                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2137                                 "3152 Unrecoverable error\n");
2138                 phba->link_state = LPFC_HBA_ERROR;
2139                 break;
2140         case LPFC_SLI_INTF_IF_TYPE_1:
2141         default:
2142                 break;
2143         }
2144         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2145                         "3123 Report dump event to upper layer\n");
2146         /* Send an internal error event to mgmt application */
2147         lpfc_board_errevt_to_mgmt(phba);
2148
2149         event_data = FC_REG_DUMP_EVENT;
2150         shost = lpfc_shost_from_vport(vport);
2151         fc_host_post_vendor_event(shost, fc_get_event_number(),
2152                                   sizeof(event_data), (char *) &event_data,
2153                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2154 }
2155
2156 /**
2157  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2158  * @phba: pointer to lpfc HBA data structure.
2159  *
2160  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2161  * routine from the API jump table function pointer from the lpfc_hba struct.
2162  *
2163  * Return codes
2164  *   0 - success.
2165  *   Any other value - error.
2166  **/
2167 void
2168 lpfc_handle_eratt(struct lpfc_hba *phba)
2169 {
2170         (*phba->lpfc_handle_eratt)(phba);
2171 }
2172
2173 /**
2174  * lpfc_handle_latt - The HBA link event handler
2175  * @phba: pointer to lpfc hba data structure.
2176  *
2177  * This routine is invoked from the worker thread to handle a HBA host
2178  * attention link event. SLI3 only.
2179  **/
2180 void
2181 lpfc_handle_latt(struct lpfc_hba *phba)
2182 {
2183         struct lpfc_vport *vport = phba->pport;
2184         struct lpfc_sli   *psli = &phba->sli;
2185         LPFC_MBOXQ_t *pmb;
2186         volatile uint32_t control;
2187         struct lpfc_dmabuf *mp;
2188         int rc = 0;
2189
2190         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2191         if (!pmb) {
2192                 rc = 1;
2193                 goto lpfc_handle_latt_err_exit;
2194         }
2195
2196         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2197         if (!mp) {
2198                 rc = 2;
2199                 goto lpfc_handle_latt_free_pmb;
2200         }
2201
2202         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2203         if (!mp->virt) {
2204                 rc = 3;
2205                 goto lpfc_handle_latt_free_mp;
2206         }
2207
2208         /* Cleanup any outstanding ELS commands */
2209         lpfc_els_flush_all_cmd(phba);
2210
2211         psli->slistat.link_event++;
2212         lpfc_read_topology(phba, pmb, mp);
2213         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2214         pmb->vport = vport;
2215         /* Block ELS IOCBs until we have processed this mbox command */
2216         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2217         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2218         if (rc == MBX_NOT_FINISHED) {
2219                 rc = 4;
2220                 goto lpfc_handle_latt_free_mbuf;
2221         }
2222
2223         /* Clear Link Attention in HA REG */
2224         spin_lock_irq(&phba->hbalock);
2225         writel(HA_LATT, phba->HAregaddr);
2226         readl(phba->HAregaddr); /* flush */
2227         spin_unlock_irq(&phba->hbalock);
2228
2229         return;
2230
2231 lpfc_handle_latt_free_mbuf:
2232         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2233         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2234 lpfc_handle_latt_free_mp:
2235         kfree(mp);
2236 lpfc_handle_latt_free_pmb:
2237         mempool_free(pmb, phba->mbox_mem_pool);
2238 lpfc_handle_latt_err_exit:
2239         /* Enable Link attention interrupts */
2240         spin_lock_irq(&phba->hbalock);
2241         psli->sli_flag |= LPFC_PROCESS_LA;
2242         control = readl(phba->HCregaddr);
2243         control |= HC_LAINT_ENA;
2244         writel(control, phba->HCregaddr);
2245         readl(phba->HCregaddr); /* flush */
2246
2247         /* Clear Link Attention in HA REG */
2248         writel(HA_LATT, phba->HAregaddr);
2249         readl(phba->HAregaddr); /* flush */
2250         spin_unlock_irq(&phba->hbalock);
2251         lpfc_linkdown(phba);
2252         phba->link_state = LPFC_HBA_ERROR;
2253
2254         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2255                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2256
2257         return;
2258 }
2259
2260 /**
2261  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2262  * @phba: pointer to lpfc hba data structure.
2263  * @vpd: pointer to the vital product data.
2264  * @len: length of the vital product data in bytes.
2265  *
2266  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2267  * an array of characters. In this routine, the ModelName, ProgramType, and
2268  * ModelDesc, etc. fields of the phba data structure will be populated.
2269  *
2270  * Return codes
2271  *   0 - pointer to the VPD passed in is NULL
2272  *   1 - success
2273  **/
2274 int
2275 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2276 {
2277         uint8_t lenlo, lenhi;
2278         int Length;
2279         int i, j;
2280         int finished = 0;
2281         int index = 0;
2282
2283         if (!vpd)
2284                 return 0;
2285
2286         /* Vital Product */
2287         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2288                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2289                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2290                         (uint32_t) vpd[3]);
2291         while (!finished && (index < (len - 4))) {
2292                 switch (vpd[index]) {
2293                 case 0x82:
2294                 case 0x91:
2295                         index += 1;
2296                         lenlo = vpd[index];
2297                         index += 1;
2298                         lenhi = vpd[index];
2299                         index += 1;
2300                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2301                         index += i;
2302                         break;
2303                 case 0x90:
2304                         index += 1;
2305                         lenlo = vpd[index];
2306                         index += 1;
2307                         lenhi = vpd[index];
2308                         index += 1;
2309                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2310                         if (Length > len - index)
2311                                 Length = len - index;
2312                         while (Length > 0) {
2313                         /* Look for Serial Number */
2314                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2315                                 index += 2;
2316                                 i = vpd[index];
2317                                 index += 1;
2318                                 j = 0;
2319                                 Length -= (3+i);
2320                                 while(i--) {
2321                                         phba->SerialNumber[j++] = vpd[index++];
2322                                         if (j == 31)
2323                                                 break;
2324                                 }
2325                                 phba->SerialNumber[j] = 0;
2326                                 continue;
2327                         }
2328                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2329                                 phba->vpd_flag |= VPD_MODEL_DESC;
2330                                 index += 2;
2331                                 i = vpd[index];
2332                                 index += 1;
2333                                 j = 0;
2334                                 Length -= (3+i);
2335                                 while(i--) {
2336                                         phba->ModelDesc[j++] = vpd[index++];
2337                                         if (j == 255)
2338                                                 break;
2339                                 }
2340                                 phba->ModelDesc[j] = 0;
2341                                 continue;
2342                         }
2343                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2344                                 phba->vpd_flag |= VPD_MODEL_NAME;
2345                                 index += 2;
2346                                 i = vpd[index];
2347                                 index += 1;
2348                                 j = 0;
2349                                 Length -= (3+i);
2350                                 while(i--) {
2351                                         phba->ModelName[j++] = vpd[index++];
2352                                         if (j == 79)
2353                                                 break;
2354                                 }
2355                                 phba->ModelName[j] = 0;
2356                                 continue;
2357                         }
2358                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2359                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2360                                 index += 2;
2361                                 i = vpd[index];
2362                                 index += 1;
2363                                 j = 0;
2364                                 Length -= (3+i);
2365                                 while(i--) {
2366                                         phba->ProgramType[j++] = vpd[index++];
2367                                         if (j == 255)
2368                                                 break;
2369                                 }
2370                                 phba->ProgramType[j] = 0;
2371                                 continue;
2372                         }
2373                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2374                                 phba->vpd_flag |= VPD_PORT;
2375                                 index += 2;
2376                                 i = vpd[index];
2377                                 index += 1;
2378                                 j = 0;
2379                                 Length -= (3+i);
2380                                 while(i--) {
2381                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2382                                             (phba->sli4_hba.pport_name_sta ==
2383                                              LPFC_SLI4_PPNAME_GET)) {
2384                                                 j++;
2385                                                 index++;
2386                                         } else
2387                                                 phba->Port[j++] = vpd[index++];
2388                                         if (j == 19)
2389                                                 break;
2390                                 }
2391                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2392                                     (phba->sli4_hba.pport_name_sta ==
2393                                      LPFC_SLI4_PPNAME_NON))
2394                                         phba->Port[j] = 0;
2395                                 continue;
2396                         }
2397                         else {
2398                                 index += 2;
2399                                 i = vpd[index];
2400                                 index += 1;
2401                                 index += i;
2402                                 Length -= (3 + i);
2403                         }
2404                 }
2405                 finished = 0;
2406                 break;
2407                 case 0x78:
2408                         finished = 1;
2409                         break;
2410                 default:
2411                         index ++;
2412                         break;
2413                 }
2414         }
2415
2416         return(1);
2417 }
2418
2419 /**
2420  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2421  * @phba: pointer to lpfc hba data structure.
2422  * @mdp: pointer to the data structure to hold the derived model name.
2423  * @descp: pointer to the data structure to hold the derived description.
2424  *
2425  * This routine retrieves HBA's description based on its registered PCI device
2426  * ID. The @descp passed into this function points to an array of 256 chars. It
2427  * shall be returned with the model name, maximum speed, and the host bus type.
2428  * The @mdp passed into this function points to an array of 80 chars. When the
2429  * function returns, the @mdp will be filled with the model name.
2430  **/
2431 static void
2432 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2433 {
2434         lpfc_vpd_t *vp;
2435         uint16_t dev_id = phba->pcidev->device;
2436         int max_speed;
2437         int GE = 0;
2438         int oneConnect = 0; /* default is not a oneConnect */
2439         struct {
2440                 char *name;
2441                 char *bus;
2442                 char *function;
2443         } m = {"<Unknown>", "", ""};
2444
2445         if (mdp && mdp[0] != '\0'
2446                 && descp && descp[0] != '\0')
2447                 return;
2448
2449         if (phba->lmt & LMT_64Gb)
2450                 max_speed = 64;
2451         else if (phba->lmt & LMT_32Gb)
2452                 max_speed = 32;
2453         else if (phba->lmt & LMT_16Gb)
2454                 max_speed = 16;
2455         else if (phba->lmt & LMT_10Gb)
2456                 max_speed = 10;
2457         else if (phba->lmt & LMT_8Gb)
2458                 max_speed = 8;
2459         else if (phba->lmt & LMT_4Gb)
2460                 max_speed = 4;
2461         else if (phba->lmt & LMT_2Gb)
2462                 max_speed = 2;
2463         else if (phba->lmt & LMT_1Gb)
2464                 max_speed = 1;
2465         else
2466                 max_speed = 0;
2467
2468         vp = &phba->vpd;
2469
2470         switch (dev_id) {
2471         case PCI_DEVICE_ID_FIREFLY:
2472                 m = (typeof(m)){"LP6000", "PCI",
2473                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2474                 break;
2475         case PCI_DEVICE_ID_SUPERFLY:
2476                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2477                         m = (typeof(m)){"LP7000", "PCI", ""};
2478                 else
2479                         m = (typeof(m)){"LP7000E", "PCI", ""};
2480                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2481                 break;
2482         case PCI_DEVICE_ID_DRAGONFLY:
2483                 m = (typeof(m)){"LP8000", "PCI",
2484                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2485                 break;
2486         case PCI_DEVICE_ID_CENTAUR:
2487                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2488                         m = (typeof(m)){"LP9002", "PCI", ""};
2489                 else
2490                         m = (typeof(m)){"LP9000", "PCI", ""};
2491                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2492                 break;
2493         case PCI_DEVICE_ID_RFLY:
2494                 m = (typeof(m)){"LP952", "PCI",
2495                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2496                 break;
2497         case PCI_DEVICE_ID_PEGASUS:
2498                 m = (typeof(m)){"LP9802", "PCI-X",
2499                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2500                 break;
2501         case PCI_DEVICE_ID_THOR:
2502                 m = (typeof(m)){"LP10000", "PCI-X",
2503                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2504                 break;
2505         case PCI_DEVICE_ID_VIPER:
2506                 m = (typeof(m)){"LPX1000",  "PCI-X",
2507                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_PFLY:
2510                 m = (typeof(m)){"LP982", "PCI-X",
2511                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2512                 break;
2513         case PCI_DEVICE_ID_TFLY:
2514                 m = (typeof(m)){"LP1050", "PCI-X",
2515                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2516                 break;
2517         case PCI_DEVICE_ID_HELIOS:
2518                 m = (typeof(m)){"LP11000", "PCI-X2",
2519                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2520                 break;
2521         case PCI_DEVICE_ID_HELIOS_SCSP:
2522                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2523                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2524                 break;
2525         case PCI_DEVICE_ID_HELIOS_DCSP:
2526                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2527                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2528                 break;
2529         case PCI_DEVICE_ID_NEPTUNE:
2530                 m = (typeof(m)){"LPe1000", "PCIe",
2531                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2532                 break;
2533         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2534                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2535                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2536                 break;
2537         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2538                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2539                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2540                 break;
2541         case PCI_DEVICE_ID_BMID:
2542                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2543                 break;
2544         case PCI_DEVICE_ID_BSMB:
2545                 m = (typeof(m)){"LP111", "PCI-X2",
2546                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2547                 break;
2548         case PCI_DEVICE_ID_ZEPHYR:
2549                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2550                 break;
2551         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2552                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2553                 break;
2554         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2555                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2556                 GE = 1;
2557                 break;
2558         case PCI_DEVICE_ID_ZMID:
2559                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2560                 break;
2561         case PCI_DEVICE_ID_ZSMB:
2562                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2563                 break;
2564         case PCI_DEVICE_ID_LP101:
2565                 m = (typeof(m)){"LP101", "PCI-X",
2566                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2567                 break;
2568         case PCI_DEVICE_ID_LP10000S:
2569                 m = (typeof(m)){"LP10000-S", "PCI",
2570                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2571                 break;
2572         case PCI_DEVICE_ID_LP11000S:
2573                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2574                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2575                 break;
2576         case PCI_DEVICE_ID_LPE11000S:
2577                 m = (typeof(m)){"LPe11000-S", "PCIe",
2578                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2579                 break;
2580         case PCI_DEVICE_ID_SAT:
2581                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2582                 break;
2583         case PCI_DEVICE_ID_SAT_MID:
2584                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2585                 break;
2586         case PCI_DEVICE_ID_SAT_SMB:
2587                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2588                 break;
2589         case PCI_DEVICE_ID_SAT_DCSP:
2590                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2591                 break;
2592         case PCI_DEVICE_ID_SAT_SCSP:
2593                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2594                 break;
2595         case PCI_DEVICE_ID_SAT_S:
2596                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2597                 break;
2598         case PCI_DEVICE_ID_HORNET:
2599                 m = (typeof(m)){"LP21000", "PCIe",
2600                                 "Obsolete, Unsupported FCoE Adapter"};
2601                 GE = 1;
2602                 break;
2603         case PCI_DEVICE_ID_PROTEUS_VF:
2604                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2605                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2606                 break;
2607         case PCI_DEVICE_ID_PROTEUS_PF:
2608                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2609                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2610                 break;
2611         case PCI_DEVICE_ID_PROTEUS_S:
2612                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2613                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2614                 break;
2615         case PCI_DEVICE_ID_TIGERSHARK:
2616                 oneConnect = 1;
2617                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2618                 break;
2619         case PCI_DEVICE_ID_TOMCAT:
2620                 oneConnect = 1;
2621                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2622                 break;
2623         case PCI_DEVICE_ID_FALCON:
2624                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2625                                 "EmulexSecure Fibre"};
2626                 break;
2627         case PCI_DEVICE_ID_BALIUS:
2628                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2629                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2630                 break;
2631         case PCI_DEVICE_ID_LANCER_FC:
2632                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2633                 break;
2634         case PCI_DEVICE_ID_LANCER_FC_VF:
2635                 m = (typeof(m)){"LPe16000", "PCIe",
2636                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2637                 break;
2638         case PCI_DEVICE_ID_LANCER_FCOE:
2639                 oneConnect = 1;
2640                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2641                 break;
2642         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2643                 oneConnect = 1;
2644                 m = (typeof(m)){"OCe15100", "PCIe",
2645                                 "Obsolete, Unsupported FCoE"};
2646                 break;
2647         case PCI_DEVICE_ID_LANCER_G6_FC:
2648                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2649                 break;
2650         case PCI_DEVICE_ID_LANCER_G7_FC:
2651                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2652                 break;
2653         case PCI_DEVICE_ID_LANCER_G7P_FC:
2654                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2655                 break;
2656         case PCI_DEVICE_ID_SKYHAWK:
2657         case PCI_DEVICE_ID_SKYHAWK_VF:
2658                 oneConnect = 1;
2659                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2660                 break;
2661         default:
2662                 m = (typeof(m)){"Unknown", "", ""};
2663                 break;
2664         }
2665
2666         if (mdp && mdp[0] == '\0')
2667                 snprintf(mdp, 79,"%s", m.name);
2668         /*
2669          * oneConnect hba requires special processing, they are all initiators
2670          * and we put the port number on the end
2671          */
2672         if (descp && descp[0] == '\0') {
2673                 if (oneConnect)
2674                         snprintf(descp, 255,
2675                                 "Emulex OneConnect %s, %s Initiator %s",
2676                                 m.name, m.function,
2677                                 phba->Port);
2678                 else if (max_speed == 0)
2679                         snprintf(descp, 255,
2680                                 "Emulex %s %s %s",
2681                                 m.name, m.bus, m.function);
2682                 else
2683                         snprintf(descp, 255,
2684                                 "Emulex %s %d%s %s %s",
2685                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2686                                 m.bus, m.function);
2687         }
2688 }
2689
2690 /**
2691  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2692  * @phba: pointer to lpfc hba data structure.
2693  * @pring: pointer to a IOCB ring.
2694  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2695  *
2696  * This routine posts a given number of IOCBs with the associated DMA buffer
2697  * descriptors specified by the cnt argument to the given IOCB ring.
2698  *
2699  * Return codes
2700  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2701  **/
2702 int
2703 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2704 {
2705         IOCB_t *icmd;
2706         struct lpfc_iocbq *iocb;
2707         struct lpfc_dmabuf *mp1, *mp2;
2708
2709         cnt += pring->missbufcnt;
2710
2711         /* While there are buffers to post */
2712         while (cnt > 0) {
2713                 /* Allocate buffer for  command iocb */
2714                 iocb = lpfc_sli_get_iocbq(phba);
2715                 if (iocb == NULL) {
2716                         pring->missbufcnt = cnt;
2717                         return cnt;
2718                 }
2719                 icmd = &iocb->iocb;
2720
2721                 /* 2 buffers can be posted per command */
2722                 /* Allocate buffer to post */
2723                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2724                 if (mp1)
2725                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2726                 if (!mp1 || !mp1->virt) {
2727                         kfree(mp1);
2728                         lpfc_sli_release_iocbq(phba, iocb);
2729                         pring->missbufcnt = cnt;
2730                         return cnt;
2731                 }
2732
2733                 INIT_LIST_HEAD(&mp1->list);
2734                 /* Allocate buffer to post */
2735                 if (cnt > 1) {
2736                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2737                         if (mp2)
2738                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2739                                                             &mp2->phys);
2740                         if (!mp2 || !mp2->virt) {
2741                                 kfree(mp2);
2742                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2743                                 kfree(mp1);
2744                                 lpfc_sli_release_iocbq(phba, iocb);
2745                                 pring->missbufcnt = cnt;
2746                                 return cnt;
2747                         }
2748
2749                         INIT_LIST_HEAD(&mp2->list);
2750                 } else {
2751                         mp2 = NULL;
2752                 }
2753
2754                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2755                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2756                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2757                 icmd->ulpBdeCount = 1;
2758                 cnt--;
2759                 if (mp2) {
2760                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2761                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2762                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2763                         cnt--;
2764                         icmd->ulpBdeCount = 2;
2765                 }
2766
2767                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2768                 icmd->ulpLe = 1;
2769
2770                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2771                     IOCB_ERROR) {
2772                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2773                         kfree(mp1);
2774                         cnt++;
2775                         if (mp2) {
2776                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2777                                 kfree(mp2);
2778                                 cnt++;
2779                         }
2780                         lpfc_sli_release_iocbq(phba, iocb);
2781                         pring->missbufcnt = cnt;
2782                         return cnt;
2783                 }
2784                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2785                 if (mp2)
2786                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2787         }
2788         pring->missbufcnt = 0;
2789         return 0;
2790 }
2791
2792 /**
2793  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2794  * @phba: pointer to lpfc hba data structure.
2795  *
2796  * This routine posts initial receive IOCB buffers to the ELS ring. The
2797  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2798  * set to 64 IOCBs. SLI3 only.
2799  *
2800  * Return codes
2801  *   0 - success (currently always success)
2802  **/
2803 static int
2804 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2805 {
2806         struct lpfc_sli *psli = &phba->sli;
2807
2808         /* Ring 0, ELS / CT buffers */
2809         lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2810         /* Ring 2 - FCP no buffers needed */
2811
2812         return 0;
2813 }
2814
2815 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2816
2817 /**
2818  * lpfc_sha_init - Set up initial array of hash table entries
2819  * @HashResultPointer: pointer to an array as hash table.
2820  *
2821  * This routine sets up the initial values to the array of hash table entries
2822  * for the LC HBAs.
2823  **/
2824 static void
2825 lpfc_sha_init(uint32_t * HashResultPointer)
2826 {
2827         HashResultPointer[0] = 0x67452301;
2828         HashResultPointer[1] = 0xEFCDAB89;
2829         HashResultPointer[2] = 0x98BADCFE;
2830         HashResultPointer[3] = 0x10325476;
2831         HashResultPointer[4] = 0xC3D2E1F0;
2832 }
2833
2834 /**
2835  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2836  * @HashResultPointer: pointer to an initial/result hash table.
2837  * @HashWorkingPointer: pointer to an working hash table.
2838  *
2839  * This routine iterates an initial hash table pointed by @HashResultPointer
2840  * with the values from the working hash table pointeed by @HashWorkingPointer.
2841  * The results are putting back to the initial hash table, returned through
2842  * the @HashResultPointer as the result hash table.
2843  **/
2844 static void
2845 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2846 {
2847         int t;
2848         uint32_t TEMP;
2849         uint32_t A, B, C, D, E;
2850         t = 16;
2851         do {
2852                 HashWorkingPointer[t] =
2853                     S(1,
2854                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2855                                                                      8] ^
2856                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2857         } while (++t <= 79);
2858         t = 0;
2859         A = HashResultPointer[0];
2860         B = HashResultPointer[1];
2861         C = HashResultPointer[2];
2862         D = HashResultPointer[3];
2863         E = HashResultPointer[4];
2864
2865         do {
2866                 if (t < 20) {
2867                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2868                 } else if (t < 40) {
2869                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2870                 } else if (t < 60) {
2871                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2872                 } else {
2873                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2874                 }
2875                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2876                 E = D;
2877                 D = C;
2878                 C = S(30, B);
2879                 B = A;
2880                 A = TEMP;
2881         } while (++t <= 79);
2882
2883         HashResultPointer[0] += A;
2884         HashResultPointer[1] += B;
2885         HashResultPointer[2] += C;
2886         HashResultPointer[3] += D;
2887         HashResultPointer[4] += E;
2888
2889 }
2890
2891 /**
2892  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2893  * @RandomChallenge: pointer to the entry of host challenge random number array.
2894  * @HashWorking: pointer to the entry of the working hash array.
2895  *
2896  * This routine calculates the working hash array referred by @HashWorking
2897  * from the challenge random numbers associated with the host, referred by
2898  * @RandomChallenge. The result is put into the entry of the working hash
2899  * array and returned by reference through @HashWorking.
2900  **/
2901 static void
2902 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2903 {
2904         *HashWorking = (*RandomChallenge ^ *HashWorking);
2905 }
2906
2907 /**
2908  * lpfc_hba_init - Perform special handling for LC HBA initialization
2909  * @phba: pointer to lpfc hba data structure.
2910  * @hbainit: pointer to an array of unsigned 32-bit integers.
2911  *
2912  * This routine performs the special handling for LC HBA initialization.
2913  **/
2914 void
2915 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2916 {
2917         int t;
2918         uint32_t *HashWorking;
2919         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2920
2921         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2922         if (!HashWorking)
2923                 return;
2924
2925         HashWorking[0] = HashWorking[78] = *pwwnn++;
2926         HashWorking[1] = HashWorking[79] = *pwwnn;
2927
2928         for (t = 0; t < 7; t++)
2929                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2930
2931         lpfc_sha_init(hbainit);
2932         lpfc_sha_iterate(hbainit, HashWorking);
2933         kfree(HashWorking);
2934 }
2935
2936 /**
2937  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2938  * @vport: pointer to a virtual N_Port data structure.
2939  *
2940  * This routine performs the necessary cleanups before deleting the @vport.
2941  * It invokes the discovery state machine to perform necessary state
2942  * transitions and to release the ndlps associated with the @vport. Note,
2943  * the physical port is treated as @vport 0.
2944  **/
2945 void
2946 lpfc_cleanup(struct lpfc_vport *vport)
2947 {
2948         struct lpfc_hba   *phba = vport->phba;
2949         struct lpfc_nodelist *ndlp, *next_ndlp;
2950         int i = 0;
2951
2952         if (phba->link_state > LPFC_LINK_DOWN)
2953                 lpfc_port_link_failure(vport);
2954
2955         /* Clean up VMID resources */
2956         if (lpfc_is_vmid_enabled(phba))
2957                 lpfc_vmid_vport_cleanup(vport);
2958
2959         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2960                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2961                     ndlp->nlp_DID == Fabric_DID) {
2962                         /* Just free up ndlp with Fabric_DID for vports */
2963                         lpfc_nlp_put(ndlp);
2964                         continue;
2965                 }
2966
2967                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2968                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2969                         lpfc_nlp_put(ndlp);
2970                         continue;
2971                 }
2972
2973                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2974                  * DEVICE_RM event.
2975                  */
2976                 if (ndlp->nlp_type & NLP_FABRIC &&
2977                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2978                         lpfc_disc_state_machine(vport, ndlp, NULL,
2979                                         NLP_EVT_DEVICE_RECOVERY);
2980
2981                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2982                         lpfc_disc_state_machine(vport, ndlp, NULL,
2983                                         NLP_EVT_DEVICE_RM);
2984         }
2985
2986         /* At this point, ALL ndlp's should be gone
2987          * because of the previous NLP_EVT_DEVICE_RM.
2988          * Lets wait for this to happen, if needed.
2989          */
2990         while (!list_empty(&vport->fc_nodes)) {
2991                 if (i++ > 3000) {
2992                         lpfc_printf_vlog(vport, KERN_ERR,
2993                                          LOG_TRACE_EVENT,
2994                                 "0233 Nodelist not empty\n");
2995                         list_for_each_entry_safe(ndlp, next_ndlp,
2996                                                 &vport->fc_nodes, nlp_listp) {
2997                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2998                                                  LOG_TRACE_EVENT,
2999                                                  "0282 did:x%x ndlp:x%px "
3000                                                  "refcnt:%d xflags x%x nflag x%x\n",
3001                                                  ndlp->nlp_DID, (void *)ndlp,
3002                                                  kref_read(&ndlp->kref),
3003                                                  ndlp->fc4_xpt_flags,
3004                                                  ndlp->nlp_flag);
3005                         }
3006                         break;
3007                 }
3008
3009                 /* Wait for any activity on ndlps to settle */
3010                 msleep(10);
3011         }
3012         lpfc_cleanup_vports_rrqs(vport, NULL);
3013 }
3014
3015 /**
3016  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
3017  * @vport: pointer to a virtual N_Port data structure.
3018  *
3019  * This routine stops all the timers associated with a @vport. This function
3020  * is invoked before disabling or deleting a @vport. Note that the physical
3021  * port is treated as @vport 0.
3022  **/
3023 void
3024 lpfc_stop_vport_timers(struct lpfc_vport *vport)
3025 {
3026         del_timer_sync(&vport->els_tmofunc);
3027         del_timer_sync(&vport->delayed_disc_tmo);
3028         lpfc_can_disctmo(vport);
3029         return;
3030 }
3031
3032 /**
3033  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3034  * @phba: pointer to lpfc hba data structure.
3035  *
3036  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
3037  * caller of this routine should already hold the host lock.
3038  **/
3039 void
3040 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3041 {
3042         /* Clear pending FCF rediscovery wait flag */
3043         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3044
3045         /* Now, try to stop the timer */
3046         del_timer(&phba->fcf.redisc_wait);
3047 }
3048
3049 /**
3050  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3051  * @phba: pointer to lpfc hba data structure.
3052  *
3053  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3054  * checks whether the FCF rediscovery wait timer is pending with the host
3055  * lock held before proceeding with disabling the timer and clearing the
3056  * wait timer pendig flag.
3057  **/
3058 void
3059 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3060 {
3061         spin_lock_irq(&phba->hbalock);
3062         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3063                 /* FCF rediscovery timer already fired or stopped */
3064                 spin_unlock_irq(&phba->hbalock);
3065                 return;
3066         }
3067         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3068         /* Clear failover in progress flags */
3069         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3070         spin_unlock_irq(&phba->hbalock);
3071 }
3072
3073 /**
3074  * lpfc_cmf_stop - Stop CMF processing
3075  * @phba: pointer to lpfc hba data structure.
3076  *
3077  * This is called when the link goes down or if CMF mode is turned OFF.
3078  * It is also called when going offline or unloaded just before the
3079  * congestion info buffer is unregistered.
3080  **/
3081 void
3082 lpfc_cmf_stop(struct lpfc_hba *phba)
3083 {
3084         int cpu;
3085         struct lpfc_cgn_stat *cgs;
3086
3087         /* We only do something if CMF is enabled */
3088         if (!phba->sli4_hba.pc_sli4_params.cmf)
3089                 return;
3090
3091         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3092                         "6221 Stop CMF / Cancel Timer\n");
3093
3094         /* Cancel the CMF timer */
3095         hrtimer_cancel(&phba->cmf_timer);
3096
3097         /* Zero CMF counters */
3098         atomic_set(&phba->cmf_busy, 0);
3099         for_each_present_cpu(cpu) {
3100                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3101                 atomic64_set(&cgs->total_bytes, 0);
3102                 atomic64_set(&cgs->rcv_bytes, 0);
3103                 atomic_set(&cgs->rx_io_cnt, 0);
3104                 atomic64_set(&cgs->rx_latency, 0);
3105         }
3106         atomic_set(&phba->cmf_bw_wait, 0);
3107
3108         /* Resume any blocked IO - Queue unblock on workqueue */
3109         queue_work(phba->wq, &phba->unblock_request_work);
3110 }
3111
3112 static inline uint64_t
3113 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3114 {
3115         uint64_t rate = lpfc_sli_port_speed_get(phba);
3116
3117         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3118 }
3119
3120 void
3121 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3122 {
3123         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3124                         "6223 Signal CMF init\n");
3125
3126         /* Use the new fc_linkspeed to recalculate */
3127         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3128         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3129         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3130                                             phba->cmf_interval_rate, 1000);
3131         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3132
3133         /* This is a signal to firmware to sync up CMF BW with link speed */
3134         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3135 }
3136
3137 /**
3138  * lpfc_cmf_start - Start CMF processing
3139  * @phba: pointer to lpfc hba data structure.
3140  *
3141  * This is called when the link comes up or if CMF mode is turned OFF
3142  * to Monitor or Managed.
3143  **/
3144 void
3145 lpfc_cmf_start(struct lpfc_hba *phba)
3146 {
3147         struct lpfc_cgn_stat *cgs;
3148         int cpu;
3149
3150         /* We only do something if CMF is enabled */
3151         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3152             phba->cmf_active_mode == LPFC_CFG_OFF)
3153                 return;
3154
3155         /* Reinitialize congestion buffer info */
3156         lpfc_init_congestion_buf(phba);
3157
3158         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3159         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3160         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3161         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3162
3163         atomic_set(&phba->cmf_busy, 0);
3164         for_each_present_cpu(cpu) {
3165                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3166                 atomic64_set(&cgs->total_bytes, 0);
3167                 atomic64_set(&cgs->rcv_bytes, 0);
3168                 atomic_set(&cgs->rx_io_cnt, 0);
3169                 atomic64_set(&cgs->rx_latency, 0);
3170         }
3171         phba->cmf_latency.tv_sec = 0;
3172         phba->cmf_latency.tv_nsec = 0;
3173
3174         lpfc_cmf_signal_init(phba);
3175
3176         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3177                         "6222 Start CMF / Timer\n");
3178
3179         phba->cmf_timer_cnt = 0;
3180         hrtimer_start(&phba->cmf_timer,
3181                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3182                       HRTIMER_MODE_REL);
3183         /* Setup for latency check in IO cmpl routines */
3184         ktime_get_real_ts64(&phba->cmf_latency);
3185
3186         atomic_set(&phba->cmf_bw_wait, 0);
3187         atomic_set(&phba->cmf_stop_io, 0);
3188 }
3189
3190 /**
3191  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3192  * @phba: pointer to lpfc hba data structure.
3193  *
3194  * This routine stops all the timers associated with a HBA. This function is
3195  * invoked before either putting a HBA offline or unloading the driver.
3196  **/
3197 void
3198 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3199 {
3200         if (phba->pport)
3201                 lpfc_stop_vport_timers(phba->pport);
3202         cancel_delayed_work_sync(&phba->eq_delay_work);
3203         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3204         del_timer_sync(&phba->sli.mbox_tmo);
3205         del_timer_sync(&phba->fabric_block_timer);
3206         del_timer_sync(&phba->eratt_poll);
3207         del_timer_sync(&phba->hb_tmofunc);
3208         if (phba->sli_rev == LPFC_SLI_REV4) {
3209                 del_timer_sync(&phba->rrq_tmr);
3210                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3211         }
3212         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3213
3214         switch (phba->pci_dev_grp) {
3215         case LPFC_PCI_DEV_LP:
3216                 /* Stop any LightPulse device specific driver timers */
3217                 del_timer_sync(&phba->fcp_poll_timer);
3218                 break;
3219         case LPFC_PCI_DEV_OC:
3220                 /* Stop any OneConnect device specific driver timers */
3221                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3222                 break;
3223         default:
3224                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3225                                 "0297 Invalid device group (x%x)\n",
3226                                 phba->pci_dev_grp);
3227                 break;
3228         }
3229         return;
3230 }
3231
3232 /**
3233  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3234  * @phba: pointer to lpfc hba data structure.
3235  * @mbx_action: flag for mailbox no wait action.
3236  *
3237  * This routine marks a HBA's management interface as blocked. Once the HBA's
3238  * management interface is marked as blocked, all the user space access to
3239  * the HBA, whether they are from sysfs interface or libdfc interface will
3240  * all be blocked. The HBA is set to block the management interface when the
3241  * driver prepares the HBA interface for online or offline.
3242  **/
3243 static void
3244 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3245 {
3246         unsigned long iflag;
3247         uint8_t actcmd = MBX_HEARTBEAT;
3248         unsigned long timeout;
3249
3250         spin_lock_irqsave(&phba->hbalock, iflag);
3251         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3252         spin_unlock_irqrestore(&phba->hbalock, iflag);
3253         if (mbx_action == LPFC_MBX_NO_WAIT)
3254                 return;
3255         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3256         spin_lock_irqsave(&phba->hbalock, iflag);
3257         if (phba->sli.mbox_active) {
3258                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3259                 /* Determine how long we might wait for the active mailbox
3260                  * command to be gracefully completed by firmware.
3261                  */
3262                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3263                                 phba->sli.mbox_active) * 1000) + jiffies;
3264         }
3265         spin_unlock_irqrestore(&phba->hbalock, iflag);
3266
3267         /* Wait for the outstnading mailbox command to complete */
3268         while (phba->sli.mbox_active) {
3269                 /* Check active mailbox complete status every 2ms */
3270                 msleep(2);
3271                 if (time_after(jiffies, timeout)) {
3272                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3273                                         "2813 Mgmt IO is Blocked %x "
3274                                         "- mbox cmd %x still active\n",
3275                                         phba->sli.sli_flag, actcmd);
3276                         break;
3277                 }
3278         }
3279 }
3280
3281 /**
3282  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3283  * @phba: pointer to lpfc hba data structure.
3284  *
3285  * Allocate RPIs for all active remote nodes. This is needed whenever
3286  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3287  * is to fixup the temporary rpi assignments.
3288  **/
3289 void
3290 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3291 {
3292         struct lpfc_nodelist  *ndlp, *next_ndlp;
3293         struct lpfc_vport **vports;
3294         int i, rpi;
3295
3296         if (phba->sli_rev != LPFC_SLI_REV4)
3297                 return;
3298
3299         vports = lpfc_create_vport_work_array(phba);
3300         if (vports == NULL)
3301                 return;
3302
3303         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3304                 if (vports[i]->load_flag & FC_UNLOADING)
3305                         continue;
3306
3307                 list_for_each_entry_safe(ndlp, next_ndlp,
3308                                          &vports[i]->fc_nodes,
3309                                          nlp_listp) {
3310                         rpi = lpfc_sli4_alloc_rpi(phba);
3311                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3312                                 /* TODO print log? */
3313                                 continue;
3314                         }
3315                         ndlp->nlp_rpi = rpi;
3316                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3317                                          LOG_NODE | LOG_DISCOVERY,
3318                                          "0009 Assign RPI x%x to ndlp x%px "
3319                                          "DID:x%06x flg:x%x\n",
3320                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3321                                          ndlp->nlp_flag);
3322                 }
3323         }
3324         lpfc_destroy_vport_work_array(phba, vports);
3325 }
3326
3327 /**
3328  * lpfc_create_expedite_pool - create expedite pool
3329  * @phba: pointer to lpfc hba data structure.
3330  *
3331  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3332  * to expedite pool. Mark them as expedite.
3333  **/
3334 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3335 {
3336         struct lpfc_sli4_hdw_queue *qp;
3337         struct lpfc_io_buf *lpfc_ncmd;
3338         struct lpfc_io_buf *lpfc_ncmd_next;
3339         struct lpfc_epd_pool *epd_pool;
3340         unsigned long iflag;
3341
3342         epd_pool = &phba->epd_pool;
3343         qp = &phba->sli4_hba.hdwq[0];
3344
3345         spin_lock_init(&epd_pool->lock);
3346         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3347         spin_lock(&epd_pool->lock);
3348         INIT_LIST_HEAD(&epd_pool->list);
3349         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3350                                  &qp->lpfc_io_buf_list_put, list) {
3351                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3352                 lpfc_ncmd->expedite = true;
3353                 qp->put_io_bufs--;
3354                 epd_pool->count++;
3355                 if (epd_pool->count >= XRI_BATCH)
3356                         break;
3357         }
3358         spin_unlock(&epd_pool->lock);
3359         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3360 }
3361
3362 /**
3363  * lpfc_destroy_expedite_pool - destroy expedite pool
3364  * @phba: pointer to lpfc hba data structure.
3365  *
3366  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3367  * of HWQ 0. Clear the mark.
3368  **/
3369 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3370 {
3371         struct lpfc_sli4_hdw_queue *qp;
3372         struct lpfc_io_buf *lpfc_ncmd;
3373         struct lpfc_io_buf *lpfc_ncmd_next;
3374         struct lpfc_epd_pool *epd_pool;
3375         unsigned long iflag;
3376
3377         epd_pool = &phba->epd_pool;
3378         qp = &phba->sli4_hba.hdwq[0];
3379
3380         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3381         spin_lock(&epd_pool->lock);
3382         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3383                                  &epd_pool->list, list) {
3384                 list_move_tail(&lpfc_ncmd->list,
3385                                &qp->lpfc_io_buf_list_put);
3386                 lpfc_ncmd->flags = false;
3387                 qp->put_io_bufs++;
3388                 epd_pool->count--;
3389         }
3390         spin_unlock(&epd_pool->lock);
3391         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3392 }
3393
3394 /**
3395  * lpfc_create_multixri_pools - create multi-XRI pools
3396  * @phba: pointer to lpfc hba data structure.
3397  *
3398  * This routine initialize public, private per HWQ. Then, move XRIs from
3399  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3400  * Initialized.
3401  **/
3402 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3403 {
3404         u32 i, j;
3405         u32 hwq_count;
3406         u32 count_per_hwq;
3407         struct lpfc_io_buf *lpfc_ncmd;
3408         struct lpfc_io_buf *lpfc_ncmd_next;
3409         unsigned long iflag;
3410         struct lpfc_sli4_hdw_queue *qp;
3411         struct lpfc_multixri_pool *multixri_pool;
3412         struct lpfc_pbl_pool *pbl_pool;
3413         struct lpfc_pvt_pool *pvt_pool;
3414
3415         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3416                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3417                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3418                         phba->sli4_hba.io_xri_cnt);
3419
3420         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3421                 lpfc_create_expedite_pool(phba);
3422
3423         hwq_count = phba->cfg_hdw_queue;
3424         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3425
3426         for (i = 0; i < hwq_count; i++) {
3427                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3428
3429                 if (!multixri_pool) {
3430                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3431                                         "1238 Failed to allocate memory for "
3432                                         "multixri_pool\n");
3433
3434                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3435                                 lpfc_destroy_expedite_pool(phba);
3436
3437                         j = 0;
3438                         while (j < i) {
3439                                 qp = &phba->sli4_hba.hdwq[j];
3440                                 kfree(qp->p_multixri_pool);
3441                                 j++;
3442                         }
3443                         phba->cfg_xri_rebalancing = 0;
3444                         return;
3445                 }
3446
3447                 qp = &phba->sli4_hba.hdwq[i];
3448                 qp->p_multixri_pool = multixri_pool;
3449
3450                 multixri_pool->xri_limit = count_per_hwq;
3451                 multixri_pool->rrb_next_hwqid = i;
3452
3453                 /* Deal with public free xri pool */
3454                 pbl_pool = &multixri_pool->pbl_pool;
3455                 spin_lock_init(&pbl_pool->lock);
3456                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3457                 spin_lock(&pbl_pool->lock);
3458                 INIT_LIST_HEAD(&pbl_pool->list);
3459                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3460                                          &qp->lpfc_io_buf_list_put, list) {
3461                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3462                         qp->put_io_bufs--;
3463                         pbl_pool->count++;
3464                 }
3465                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3466                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3467                                 pbl_pool->count, i);
3468                 spin_unlock(&pbl_pool->lock);
3469                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3470
3471                 /* Deal with private free xri pool */
3472                 pvt_pool = &multixri_pool->pvt_pool;
3473                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3474                 pvt_pool->low_watermark = XRI_BATCH;
3475                 spin_lock_init(&pvt_pool->lock);
3476                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3477                 INIT_LIST_HEAD(&pvt_pool->list);
3478                 pvt_pool->count = 0;
3479                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3480         }
3481 }
3482
3483 /**
3484  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3485  * @phba: pointer to lpfc hba data structure.
3486  *
3487  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3488  **/
3489 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3490 {
3491         u32 i;
3492         u32 hwq_count;
3493         struct lpfc_io_buf *lpfc_ncmd;
3494         struct lpfc_io_buf *lpfc_ncmd_next;
3495         unsigned long iflag;
3496         struct lpfc_sli4_hdw_queue *qp;
3497         struct lpfc_multixri_pool *multixri_pool;
3498         struct lpfc_pbl_pool *pbl_pool;
3499         struct lpfc_pvt_pool *pvt_pool;
3500
3501         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3502                 lpfc_destroy_expedite_pool(phba);
3503
3504         if (!(phba->pport->load_flag & FC_UNLOADING))
3505                 lpfc_sli_flush_io_rings(phba);
3506
3507         hwq_count = phba->cfg_hdw_queue;
3508
3509         for (i = 0; i < hwq_count; i++) {
3510                 qp = &phba->sli4_hba.hdwq[i];
3511                 multixri_pool = qp->p_multixri_pool;
3512                 if (!multixri_pool)
3513                         continue;
3514
3515                 qp->p_multixri_pool = NULL;
3516
3517                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3518
3519                 /* Deal with public free xri pool */
3520                 pbl_pool = &multixri_pool->pbl_pool;
3521                 spin_lock(&pbl_pool->lock);
3522
3523                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3524                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3525                                 pbl_pool->count, i);
3526
3527                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3528                                          &pbl_pool->list, list) {
3529                         list_move_tail(&lpfc_ncmd->list,
3530                                        &qp->lpfc_io_buf_list_put);
3531                         qp->put_io_bufs++;
3532                         pbl_pool->count--;
3533                 }
3534
3535                 INIT_LIST_HEAD(&pbl_pool->list);
3536                 pbl_pool->count = 0;
3537
3538                 spin_unlock(&pbl_pool->lock);
3539
3540                 /* Deal with private free xri pool */
3541                 pvt_pool = &multixri_pool->pvt_pool;
3542                 spin_lock(&pvt_pool->lock);
3543
3544                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3545                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3546                                 pvt_pool->count, i);
3547
3548                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3549                                          &pvt_pool->list, list) {
3550                         list_move_tail(&lpfc_ncmd->list,
3551                                        &qp->lpfc_io_buf_list_put);
3552                         qp->put_io_bufs++;
3553                         pvt_pool->count--;
3554                 }
3555
3556                 INIT_LIST_HEAD(&pvt_pool->list);
3557                 pvt_pool->count = 0;
3558
3559                 spin_unlock(&pvt_pool->lock);
3560                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3561
3562                 kfree(multixri_pool);
3563         }
3564 }
3565
3566 /**
3567  * lpfc_online - Initialize and bring a HBA online
3568  * @phba: pointer to lpfc hba data structure.
3569  *
3570  * This routine initializes the HBA and brings a HBA online. During this
3571  * process, the management interface is blocked to prevent user space access
3572  * to the HBA interfering with the driver initialization.
3573  *
3574  * Return codes
3575  *   0 - successful
3576  *   1 - failed
3577  **/
3578 int
3579 lpfc_online(struct lpfc_hba *phba)
3580 {
3581         struct lpfc_vport *vport;
3582         struct lpfc_vport **vports;
3583         int i, error = 0;
3584         bool vpis_cleared = false;
3585
3586         if (!phba)
3587                 return 0;
3588         vport = phba->pport;
3589
3590         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3591                 return 0;
3592
3593         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3594                         "0458 Bring Adapter online\n");
3595
3596         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3597
3598         if (phba->sli_rev == LPFC_SLI_REV4) {
3599                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3600                         lpfc_unblock_mgmt_io(phba);
3601                         return 1;
3602                 }
3603                 spin_lock_irq(&phba->hbalock);
3604                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3605                         vpis_cleared = true;
3606                 spin_unlock_irq(&phba->hbalock);
3607
3608                 /* Reestablish the local initiator port.
3609                  * The offline process destroyed the previous lport.
3610                  */
3611                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3612                                 !phba->nvmet_support) {
3613                         error = lpfc_nvme_create_localport(phba->pport);
3614                         if (error)
3615                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3616                                         "6132 NVME restore reg failed "
3617                                         "on nvmei error x%x\n", error);
3618                 }
3619         } else {
3620                 lpfc_sli_queue_init(phba);
3621                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3622                         lpfc_unblock_mgmt_io(phba);
3623                         return 1;
3624                 }
3625         }
3626
3627         vports = lpfc_create_vport_work_array(phba);
3628         if (vports != NULL) {
3629                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3630                         struct Scsi_Host *shost;
3631                         shost = lpfc_shost_from_vport(vports[i]);
3632                         spin_lock_irq(shost->host_lock);
3633                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3634                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3635                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3636                         if (phba->sli_rev == LPFC_SLI_REV4) {
3637                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3638                                 if ((vpis_cleared) &&
3639                                     (vports[i]->port_type !=
3640                                         LPFC_PHYSICAL_PORT))
3641                                         vports[i]->vpi = 0;
3642                         }
3643                         spin_unlock_irq(shost->host_lock);
3644                 }
3645         }
3646         lpfc_destroy_vport_work_array(phba, vports);
3647
3648         if (phba->cfg_xri_rebalancing)
3649                 lpfc_create_multixri_pools(phba);
3650
3651         lpfc_cpuhp_add(phba);
3652
3653         lpfc_unblock_mgmt_io(phba);
3654         return 0;
3655 }
3656
3657 /**
3658  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3659  * @phba: pointer to lpfc hba data structure.
3660  *
3661  * This routine marks a HBA's management interface as not blocked. Once the
3662  * HBA's management interface is marked as not blocked, all the user space
3663  * access to the HBA, whether they are from sysfs interface or libdfc
3664  * interface will be allowed. The HBA is set to block the management interface
3665  * when the driver prepares the HBA interface for online or offline and then
3666  * set to unblock the management interface afterwards.
3667  **/
3668 void
3669 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3670 {
3671         unsigned long iflag;
3672
3673         spin_lock_irqsave(&phba->hbalock, iflag);
3674         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3675         spin_unlock_irqrestore(&phba->hbalock, iflag);
3676 }
3677
3678 /**
3679  * lpfc_offline_prep - Prepare a HBA to be brought offline
3680  * @phba: pointer to lpfc hba data structure.
3681  * @mbx_action: flag for mailbox shutdown action.
3682  *
3683  * This routine is invoked to prepare a HBA to be brought offline. It performs
3684  * unregistration login to all the nodes on all vports and flushes the mailbox
3685  * queue to make it ready to be brought offline.
3686  **/
3687 void
3688 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3689 {
3690         struct lpfc_vport *vport = phba->pport;
3691         struct lpfc_nodelist  *ndlp, *next_ndlp;
3692         struct lpfc_vport **vports;
3693         struct Scsi_Host *shost;
3694         int i;
3695         int offline = 0;
3696
3697         if (vport->fc_flag & FC_OFFLINE_MODE)
3698                 return;
3699
3700         lpfc_block_mgmt_io(phba, mbx_action);
3701
3702         lpfc_linkdown(phba);
3703
3704         offline =  pci_channel_offline(phba->pcidev);
3705
3706         /* Issue an unreg_login to all nodes on all vports */
3707         vports = lpfc_create_vport_work_array(phba);
3708         if (vports != NULL) {
3709                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3710                         if (vports[i]->load_flag & FC_UNLOADING)
3711                                 continue;
3712                         shost = lpfc_shost_from_vport(vports[i]);
3713                         spin_lock_irq(shost->host_lock);
3714                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3715                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3716                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3717                         spin_unlock_irq(shost->host_lock);
3718
3719                         shost = lpfc_shost_from_vport(vports[i]);
3720                         list_for_each_entry_safe(ndlp, next_ndlp,
3721                                                  &vports[i]->fc_nodes,
3722                                                  nlp_listp) {
3723
3724                                 spin_lock_irq(&ndlp->lock);
3725                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3726                                 spin_unlock_irq(&ndlp->lock);
3727
3728                                 if (offline) {
3729                                         spin_lock_irq(&ndlp->lock);
3730                                         ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3731                                                             NLP_RPI_REGISTERED);
3732                                         spin_unlock_irq(&ndlp->lock);
3733                                 } else {
3734                                         lpfc_unreg_rpi(vports[i], ndlp);
3735                                 }
3736                                 /*
3737                                  * Whenever an SLI4 port goes offline, free the
3738                                  * RPI. Get a new RPI when the adapter port
3739                                  * comes back online.
3740                                  */
3741                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3742                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3743                                                  LOG_NODE | LOG_DISCOVERY,
3744                                                  "0011 Free RPI x%x on "
3745                                                  "ndlp: x%px did x%x\n",
3746                                                  ndlp->nlp_rpi, ndlp,
3747                                                  ndlp->nlp_DID);
3748                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3749                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3750                                 }
3751
3752                                 if (ndlp->nlp_type & NLP_FABRIC) {
3753                                         lpfc_disc_state_machine(vports[i], ndlp,
3754                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3755
3756                                         /* Don't remove the node unless the node
3757                                          * has been unregistered with the
3758                                          * transport, and we're not in recovery
3759                                          * before dev_loss_tmo triggered.
3760                                          * Otherwise, let dev_loss take care of
3761                                          * the node.
3762                                          */
3763                                         if (!(ndlp->save_flags &
3764                                               NLP_IN_RECOV_POST_DEV_LOSS) &&
3765                                             !(ndlp->fc4_xpt_flags &
3766                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3767                                                 lpfc_disc_state_machine
3768                                                         (vports[i], ndlp,
3769                                                          NULL,
3770                                                          NLP_EVT_DEVICE_RM);
3771                                 }
3772                         }
3773                 }
3774         }
3775         lpfc_destroy_vport_work_array(phba, vports);
3776
3777         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3778
3779         if (phba->wq)
3780                 flush_workqueue(phba->wq);
3781 }
3782
3783 /**
3784  * lpfc_offline - Bring a HBA offline
3785  * @phba: pointer to lpfc hba data structure.
3786  *
3787  * This routine actually brings a HBA offline. It stops all the timers
3788  * associated with the HBA, brings down the SLI layer, and eventually
3789  * marks the HBA as in offline state for the upper layer protocol.
3790  **/
3791 void
3792 lpfc_offline(struct lpfc_hba *phba)
3793 {
3794         struct Scsi_Host  *shost;
3795         struct lpfc_vport **vports;
3796         int i;
3797
3798         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3799                 return;
3800
3801         /* stop port and all timers associated with this hba */
3802         lpfc_stop_port(phba);
3803
3804         /* Tear down the local and target port registrations.  The
3805          * nvme transports need to cleanup.
3806          */
3807         lpfc_nvmet_destroy_targetport(phba);
3808         lpfc_nvme_destroy_localport(phba->pport);
3809
3810         vports = lpfc_create_vport_work_array(phba);
3811         if (vports != NULL)
3812                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3813                         lpfc_stop_vport_timers(vports[i]);
3814         lpfc_destroy_vport_work_array(phba, vports);
3815         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3816                         "0460 Bring Adapter offline\n");
3817         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3818            now.  */
3819         lpfc_sli_hba_down(phba);
3820         spin_lock_irq(&phba->hbalock);
3821         phba->work_ha = 0;
3822         spin_unlock_irq(&phba->hbalock);
3823         vports = lpfc_create_vport_work_array(phba);
3824         if (vports != NULL)
3825                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3826                         shost = lpfc_shost_from_vport(vports[i]);
3827                         spin_lock_irq(shost->host_lock);
3828                         vports[i]->work_port_events = 0;
3829                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3830                         spin_unlock_irq(shost->host_lock);
3831                 }
3832         lpfc_destroy_vport_work_array(phba, vports);
3833         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3834          * in hba_unset
3835          */
3836         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3837                 __lpfc_cpuhp_remove(phba);
3838
3839         if (phba->cfg_xri_rebalancing)
3840                 lpfc_destroy_multixri_pools(phba);
3841 }
3842
3843 /**
3844  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3845  * @phba: pointer to lpfc hba data structure.
3846  *
3847  * This routine is to free all the SCSI buffers and IOCBs from the driver
3848  * list back to kernel. It is called from lpfc_pci_remove_one to free
3849  * the internal resources before the device is removed from the system.
3850  **/
3851 static void
3852 lpfc_scsi_free(struct lpfc_hba *phba)
3853 {
3854         struct lpfc_io_buf *sb, *sb_next;
3855
3856         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3857                 return;
3858
3859         spin_lock_irq(&phba->hbalock);
3860
3861         /* Release all the lpfc_scsi_bufs maintained by this host. */
3862
3863         spin_lock(&phba->scsi_buf_list_put_lock);
3864         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3865                                  list) {
3866                 list_del(&sb->list);
3867                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3868                               sb->dma_handle);
3869                 kfree(sb);
3870                 phba->total_scsi_bufs--;
3871         }
3872         spin_unlock(&phba->scsi_buf_list_put_lock);
3873
3874         spin_lock(&phba->scsi_buf_list_get_lock);
3875         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3876                                  list) {
3877                 list_del(&sb->list);
3878                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3879                               sb->dma_handle);
3880                 kfree(sb);
3881                 phba->total_scsi_bufs--;
3882         }
3883         spin_unlock(&phba->scsi_buf_list_get_lock);
3884         spin_unlock_irq(&phba->hbalock);
3885 }
3886
3887 /**
3888  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3889  * @phba: pointer to lpfc hba data structure.
3890  *
3891  * This routine is to free all the IO buffers and IOCBs from the driver
3892  * list back to kernel. It is called from lpfc_pci_remove_one to free
3893  * the internal resources before the device is removed from the system.
3894  **/
3895 void
3896 lpfc_io_free(struct lpfc_hba *phba)
3897 {
3898         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3899         struct lpfc_sli4_hdw_queue *qp;
3900         int idx;
3901
3902         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3903                 qp = &phba->sli4_hba.hdwq[idx];
3904                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3905                 spin_lock(&qp->io_buf_list_put_lock);
3906                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3907                                          &qp->lpfc_io_buf_list_put,
3908                                          list) {
3909                         list_del(&lpfc_ncmd->list);
3910                         qp->put_io_bufs--;
3911                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3912                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3913                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3914                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3915                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3916                         kfree(lpfc_ncmd);
3917                         qp->total_io_bufs--;
3918                 }
3919                 spin_unlock(&qp->io_buf_list_put_lock);
3920
3921                 spin_lock(&qp->io_buf_list_get_lock);
3922                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3923                                          &qp->lpfc_io_buf_list_get,
3924                                          list) {
3925                         list_del(&lpfc_ncmd->list);
3926                         qp->get_io_bufs--;
3927                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3928                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3929                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3930                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3931                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3932                         kfree(lpfc_ncmd);
3933                         qp->total_io_bufs--;
3934                 }
3935                 spin_unlock(&qp->io_buf_list_get_lock);
3936         }
3937 }
3938
3939 /**
3940  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3941  * @phba: pointer to lpfc hba data structure.
3942  *
3943  * This routine first calculates the sizes of the current els and allocated
3944  * scsi sgl lists, and then goes through all sgls to updates the physical
3945  * XRIs assigned due to port function reset. During port initialization, the
3946  * current els and allocated scsi sgl lists are 0s.
3947  *
3948  * Return codes
3949  *   0 - successful (for now, it always returns 0)
3950  **/
3951 int
3952 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3953 {
3954         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3955         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3956         LIST_HEAD(els_sgl_list);
3957         int rc;
3958
3959         /*
3960          * update on pci function's els xri-sgl list
3961          */
3962         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3963
3964         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3965                 /* els xri-sgl expanded */
3966                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3967                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3968                                 "3157 ELS xri-sgl count increased from "
3969                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3970                                 els_xri_cnt);
3971                 /* allocate the additional els sgls */
3972                 for (i = 0; i < xri_cnt; i++) {
3973                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3974                                              GFP_KERNEL);
3975                         if (sglq_entry == NULL) {
3976                                 lpfc_printf_log(phba, KERN_ERR,
3977                                                 LOG_TRACE_EVENT,
3978                                                 "2562 Failure to allocate an "
3979                                                 "ELS sgl entry:%d\n", i);
3980                                 rc = -ENOMEM;
3981                                 goto out_free_mem;
3982                         }
3983                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3984                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3985                                                            &sglq_entry->phys);
3986                         if (sglq_entry->virt == NULL) {
3987                                 kfree(sglq_entry);
3988                                 lpfc_printf_log(phba, KERN_ERR,
3989                                                 LOG_TRACE_EVENT,
3990                                                 "2563 Failure to allocate an "
3991                                                 "ELS mbuf:%d\n", i);
3992                                 rc = -ENOMEM;
3993                                 goto out_free_mem;
3994                         }
3995                         sglq_entry->sgl = sglq_entry->virt;
3996                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3997                         sglq_entry->state = SGL_FREED;
3998                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3999                 }
4000                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4001                 list_splice_init(&els_sgl_list,
4002                                  &phba->sli4_hba.lpfc_els_sgl_list);
4003                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4004         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
4005                 /* els xri-sgl shrinked */
4006                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
4007                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4008                                 "3158 ELS xri-sgl count decreased from "
4009                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
4010                                 els_xri_cnt);
4011                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
4012                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
4013                                  &els_sgl_list);
4014                 /* release extra els sgls from list */
4015                 for (i = 0; i < xri_cnt; i++) {
4016                         list_remove_head(&els_sgl_list,
4017                                          sglq_entry, struct lpfc_sglq, list);
4018                         if (sglq_entry) {
4019                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
4020                                                  sglq_entry->phys);
4021                                 kfree(sglq_entry);
4022                         }
4023                 }
4024                 list_splice_init(&els_sgl_list,
4025                                  &phba->sli4_hba.lpfc_els_sgl_list);
4026                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
4027         } else
4028                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4029                                 "3163 ELS xri-sgl count unchanged: %d\n",
4030                                 els_xri_cnt);
4031         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
4032
4033         /* update xris to els sgls on the list */
4034         sglq_entry = NULL;
4035         sglq_entry_next = NULL;
4036         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4037                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
4038                 lxri = lpfc_sli4_next_xritag(phba);
4039                 if (lxri == NO_XRI) {
4040                         lpfc_printf_log(phba, KERN_ERR,
4041                                         LOG_TRACE_EVENT,
4042                                         "2400 Failed to allocate xri for "
4043                                         "ELS sgl\n");
4044                         rc = -ENOMEM;
4045                         goto out_free_mem;
4046                 }
4047                 sglq_entry->sli4_lxritag = lxri;
4048                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4049         }
4050         return 0;
4051
4052 out_free_mem:
4053         lpfc_free_els_sgl_list(phba);
4054         return rc;
4055 }
4056
4057 /**
4058  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4059  * @phba: pointer to lpfc hba data structure.
4060  *
4061  * This routine first calculates the sizes of the current els and allocated
4062  * scsi sgl lists, and then goes through all sgls to updates the physical
4063  * XRIs assigned due to port function reset. During port initialization, the
4064  * current els and allocated scsi sgl lists are 0s.
4065  *
4066  * Return codes
4067  *   0 - successful (for now, it always returns 0)
4068  **/
4069 int
4070 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4071 {
4072         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4073         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4074         uint16_t nvmet_xri_cnt;
4075         LIST_HEAD(nvmet_sgl_list);
4076         int rc;
4077
4078         /*
4079          * update on pci function's nvmet xri-sgl list
4080          */
4081         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4082
4083         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4084         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4085         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4086                 /* els xri-sgl expanded */
4087                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4088                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4089                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4090                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4091                 /* allocate the additional nvmet sgls */
4092                 for (i = 0; i < xri_cnt; i++) {
4093                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4094                                              GFP_KERNEL);
4095                         if (sglq_entry == NULL) {
4096                                 lpfc_printf_log(phba, KERN_ERR,
4097                                                 LOG_TRACE_EVENT,
4098                                                 "6303 Failure to allocate an "
4099                                                 "NVMET sgl entry:%d\n", i);
4100                                 rc = -ENOMEM;
4101                                 goto out_free_mem;
4102                         }
4103                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4104                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4105                                                            &sglq_entry->phys);
4106                         if (sglq_entry->virt == NULL) {
4107                                 kfree(sglq_entry);
4108                                 lpfc_printf_log(phba, KERN_ERR,
4109                                                 LOG_TRACE_EVENT,
4110                                                 "6304 Failure to allocate an "
4111                                                 "NVMET buf:%d\n", i);
4112                                 rc = -ENOMEM;
4113                                 goto out_free_mem;
4114                         }
4115                         sglq_entry->sgl = sglq_entry->virt;
4116                         memset(sglq_entry->sgl, 0,
4117                                phba->cfg_sg_dma_buf_size);
4118                         sglq_entry->state = SGL_FREED;
4119                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4120                 }
4121                 spin_lock_irq(&phba->hbalock);
4122                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4123                 list_splice_init(&nvmet_sgl_list,
4124                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4125                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4126                 spin_unlock_irq(&phba->hbalock);
4127         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4128                 /* nvmet xri-sgl shrunk */
4129                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4130                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4131                                 "6305 NVMET xri-sgl count decreased from "
4132                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4133                                 nvmet_xri_cnt);
4134                 spin_lock_irq(&phba->hbalock);
4135                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4136                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4137                                  &nvmet_sgl_list);
4138                 /* release extra nvmet sgls from list */
4139                 for (i = 0; i < xri_cnt; i++) {
4140                         list_remove_head(&nvmet_sgl_list,
4141                                          sglq_entry, struct lpfc_sglq, list);
4142                         if (sglq_entry) {
4143                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4144                                                     sglq_entry->phys);
4145                                 kfree(sglq_entry);
4146                         }
4147                 }
4148                 list_splice_init(&nvmet_sgl_list,
4149                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4150                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4151                 spin_unlock_irq(&phba->hbalock);
4152         } else
4153                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4154                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4155                                 nvmet_xri_cnt);
4156         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4157
4158         /* update xris to nvmet sgls on the list */
4159         sglq_entry = NULL;
4160         sglq_entry_next = NULL;
4161         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4162                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4163                 lxri = lpfc_sli4_next_xritag(phba);
4164                 if (lxri == NO_XRI) {
4165                         lpfc_printf_log(phba, KERN_ERR,
4166                                         LOG_TRACE_EVENT,
4167                                         "6307 Failed to allocate xri for "
4168                                         "NVMET sgl\n");
4169                         rc = -ENOMEM;
4170                         goto out_free_mem;
4171                 }
4172                 sglq_entry->sli4_lxritag = lxri;
4173                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4174         }
4175         return 0;
4176
4177 out_free_mem:
4178         lpfc_free_nvmet_sgl_list(phba);
4179         return rc;
4180 }
4181
4182 int
4183 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4184 {
4185         LIST_HEAD(blist);
4186         struct lpfc_sli4_hdw_queue *qp;
4187         struct lpfc_io_buf *lpfc_cmd;
4188         struct lpfc_io_buf *iobufp, *prev_iobufp;
4189         int idx, cnt, xri, inserted;
4190
4191         cnt = 0;
4192         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4193                 qp = &phba->sli4_hba.hdwq[idx];
4194                 spin_lock_irq(&qp->io_buf_list_get_lock);
4195                 spin_lock(&qp->io_buf_list_put_lock);
4196
4197                 /* Take everything off the get and put lists */
4198                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4199                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4200                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4201                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4202                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4203                 qp->get_io_bufs = 0;
4204                 qp->put_io_bufs = 0;
4205                 qp->total_io_bufs = 0;
4206                 spin_unlock(&qp->io_buf_list_put_lock);
4207                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4208         }
4209
4210         /*
4211          * Take IO buffers off blist and put on cbuf sorted by XRI.
4212          * This is because POST_SGL takes a sequential range of XRIs
4213          * to post to the firmware.
4214          */
4215         for (idx = 0; idx < cnt; idx++) {
4216                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4217                 if (!lpfc_cmd)
4218                         return cnt;
4219                 if (idx == 0) {
4220                         list_add_tail(&lpfc_cmd->list, cbuf);
4221                         continue;
4222                 }
4223                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4224                 inserted = 0;
4225                 prev_iobufp = NULL;
4226                 list_for_each_entry(iobufp, cbuf, list) {
4227                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4228                                 if (prev_iobufp)
4229                                         list_add(&lpfc_cmd->list,
4230                                                  &prev_iobufp->list);
4231                                 else
4232                                         list_add(&lpfc_cmd->list, cbuf);
4233                                 inserted = 1;
4234                                 break;
4235                         }
4236                         prev_iobufp = iobufp;
4237                 }
4238                 if (!inserted)
4239                         list_add_tail(&lpfc_cmd->list, cbuf);
4240         }
4241         return cnt;
4242 }
4243
4244 int
4245 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4246 {
4247         struct lpfc_sli4_hdw_queue *qp;
4248         struct lpfc_io_buf *lpfc_cmd;
4249         int idx, cnt;
4250
4251         qp = phba->sli4_hba.hdwq;
4252         cnt = 0;
4253         while (!list_empty(cbuf)) {
4254                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4255                         list_remove_head(cbuf, lpfc_cmd,
4256                                          struct lpfc_io_buf, list);
4257                         if (!lpfc_cmd)
4258                                 return cnt;
4259                         cnt++;
4260                         qp = &phba->sli4_hba.hdwq[idx];
4261                         lpfc_cmd->hdwq_no = idx;
4262                         lpfc_cmd->hdwq = qp;
4263                         lpfc_cmd->cur_iocbq.wqe_cmpl = NULL;
4264                         lpfc_cmd->cur_iocbq.iocb_cmpl = NULL;
4265                         spin_lock(&qp->io_buf_list_put_lock);
4266                         list_add_tail(&lpfc_cmd->list,
4267                                       &qp->lpfc_io_buf_list_put);
4268                         qp->put_io_bufs++;
4269                         qp->total_io_bufs++;
4270                         spin_unlock(&qp->io_buf_list_put_lock);
4271                 }
4272         }
4273         return cnt;
4274 }
4275
4276 /**
4277  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4278  * @phba: pointer to lpfc hba data structure.
4279  *
4280  * This routine first calculates the sizes of the current els and allocated
4281  * scsi sgl lists, and then goes through all sgls to updates the physical
4282  * XRIs assigned due to port function reset. During port initialization, the
4283  * current els and allocated scsi sgl lists are 0s.
4284  *
4285  * Return codes
4286  *   0 - successful (for now, it always returns 0)
4287  **/
4288 int
4289 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4290 {
4291         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4292         uint16_t i, lxri, els_xri_cnt;
4293         uint16_t io_xri_cnt, io_xri_max;
4294         LIST_HEAD(io_sgl_list);
4295         int rc, cnt;
4296
4297         /*
4298          * update on pci function's allocated nvme xri-sgl list
4299          */
4300
4301         /* maximum number of xris available for nvme buffers */
4302         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4303         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4304         phba->sli4_hba.io_xri_max = io_xri_max;
4305
4306         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4307                         "6074 Current allocated XRI sgl count:%d, "
4308                         "maximum XRI count:%d\n",
4309                         phba->sli4_hba.io_xri_cnt,
4310                         phba->sli4_hba.io_xri_max);
4311
4312         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4313
4314         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4315                 /* max nvme xri shrunk below the allocated nvme buffers */
4316                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4317                                         phba->sli4_hba.io_xri_max;
4318                 /* release the extra allocated nvme buffers */
4319                 for (i = 0; i < io_xri_cnt; i++) {
4320                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4321                                          struct lpfc_io_buf, list);
4322                         if (lpfc_ncmd) {
4323                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4324                                               lpfc_ncmd->data,
4325                                               lpfc_ncmd->dma_handle);
4326                                 kfree(lpfc_ncmd);
4327                         }
4328                 }
4329                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4330         }
4331
4332         /* update xris associated to remaining allocated nvme buffers */
4333         lpfc_ncmd = NULL;
4334         lpfc_ncmd_next = NULL;
4335         phba->sli4_hba.io_xri_cnt = cnt;
4336         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4337                                  &io_sgl_list, list) {
4338                 lxri = lpfc_sli4_next_xritag(phba);
4339                 if (lxri == NO_XRI) {
4340                         lpfc_printf_log(phba, KERN_ERR,
4341                                         LOG_TRACE_EVENT,
4342                                         "6075 Failed to allocate xri for "
4343                                         "nvme buffer\n");
4344                         rc = -ENOMEM;
4345                         goto out_free_mem;
4346                 }
4347                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4348                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4349         }
4350         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4351         return 0;
4352
4353 out_free_mem:
4354         lpfc_io_free(phba);
4355         return rc;
4356 }
4357
4358 /**
4359  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4360  * @phba: Pointer to lpfc hba data structure.
4361  * @num_to_alloc: The requested number of buffers to allocate.
4362  *
4363  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4364  * the nvme buffer contains all the necessary information needed to initiate
4365  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4366  * them on a list, it post them to the port by using SGL block post.
4367  *
4368  * Return codes:
4369  *   int - number of IO buffers that were allocated and posted.
4370  *   0 = failure, less than num_to_alloc is a partial failure.
4371  **/
4372 int
4373 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4374 {
4375         struct lpfc_io_buf *lpfc_ncmd;
4376         struct lpfc_iocbq *pwqeq;
4377         uint16_t iotag, lxri = 0;
4378         int bcnt, num_posted;
4379         LIST_HEAD(prep_nblist);
4380         LIST_HEAD(post_nblist);
4381         LIST_HEAD(nvme_nblist);
4382
4383         phba->sli4_hba.io_xri_cnt = 0;
4384         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4385                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4386                 if (!lpfc_ncmd)
4387                         break;
4388                 /*
4389                  * Get memory from the pci pool to map the virt space to
4390                  * pci bus space for an I/O. The DMA buffer includes the
4391                  * number of SGE's necessary to support the sg_tablesize.
4392                  */
4393                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4394                                                   GFP_KERNEL,
4395                                                   &lpfc_ncmd->dma_handle);
4396                 if (!lpfc_ncmd->data) {
4397                         kfree(lpfc_ncmd);
4398                         break;
4399                 }
4400
4401                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4402                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4403                 } else {
4404                         /*
4405                          * 4K Page alignment is CRITICAL to BlockGuard, double
4406                          * check to be sure.
4407                          */
4408                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4409                             (((unsigned long)(lpfc_ncmd->data) &
4410                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4411                                 lpfc_printf_log(phba, KERN_ERR,
4412                                                 LOG_TRACE_EVENT,
4413                                                 "3369 Memory alignment err: "
4414                                                 "addr=%lx\n",
4415                                                 (unsigned long)lpfc_ncmd->data);
4416                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4417                                               lpfc_ncmd->data,
4418                                               lpfc_ncmd->dma_handle);
4419                                 kfree(lpfc_ncmd);
4420                                 break;
4421                         }
4422                 }
4423
4424                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4425
4426                 lxri = lpfc_sli4_next_xritag(phba);
4427                 if (lxri == NO_XRI) {
4428                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4429                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4430                         kfree(lpfc_ncmd);
4431                         break;
4432                 }
4433                 pwqeq = &lpfc_ncmd->cur_iocbq;
4434
4435                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4436                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4437                 if (iotag == 0) {
4438                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4439                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4440                         kfree(lpfc_ncmd);
4441                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4442                                         "6121 Failed to allocate IOTAG for"
4443                                         " XRI:0x%x\n", lxri);
4444                         lpfc_sli4_free_xri(phba, lxri);
4445                         break;
4446                 }
4447                 pwqeq->sli4_lxritag = lxri;
4448                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4449                 pwqeq->context1 = lpfc_ncmd;
4450
4451                 /* Initialize local short-hand pointers. */
4452                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4453                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4454                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4455                 spin_lock_init(&lpfc_ncmd->buf_lock);
4456
4457                 /* add the nvme buffer to a post list */
4458                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4459                 phba->sli4_hba.io_xri_cnt++;
4460         }
4461         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4462                         "6114 Allocate %d out of %d requested new NVME "
4463                         "buffers\n", bcnt, num_to_alloc);
4464
4465         /* post the list of nvme buffer sgls to port if available */
4466         if (!list_empty(&post_nblist))
4467                 num_posted = lpfc_sli4_post_io_sgl_list(
4468                                 phba, &post_nblist, bcnt);
4469         else
4470                 num_posted = 0;
4471
4472         return num_posted;
4473 }
4474
4475 static uint64_t
4476 lpfc_get_wwpn(struct lpfc_hba *phba)
4477 {
4478         uint64_t wwn;
4479         int rc;
4480         LPFC_MBOXQ_t *mboxq;
4481         MAILBOX_t *mb;
4482
4483         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4484                                                 GFP_KERNEL);
4485         if (!mboxq)
4486                 return (uint64_t)-1;
4487
4488         /* First get WWN of HBA instance */
4489         lpfc_read_nv(phba, mboxq);
4490         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4491         if (rc != MBX_SUCCESS) {
4492                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4493                                 "6019 Mailbox failed , mbxCmd x%x "
4494                                 "READ_NV, mbxStatus x%x\n",
4495                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4496                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4497                 mempool_free(mboxq, phba->mbox_mem_pool);
4498                 return (uint64_t) -1;
4499         }
4500         mb = &mboxq->u.mb;
4501         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4502         /* wwn is WWPN of HBA instance */
4503         mempool_free(mboxq, phba->mbox_mem_pool);
4504         if (phba->sli_rev == LPFC_SLI_REV4)
4505                 return be64_to_cpu(wwn);
4506         else
4507                 return rol64(wwn, 32);
4508 }
4509
4510 /**
4511  * lpfc_vmid_res_alloc - Allocates resources for VMID
4512  * @phba: pointer to lpfc hba data structure.
4513  * @vport: pointer to vport data structure
4514  *
4515  * This routine allocated the resources needed for the VMID.
4516  *
4517  * Return codes
4518  *      0 on Success
4519  *      Non-0 on Failure
4520  */
4521 static int
4522 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4523 {
4524         /* VMID feature is supported only on SLI4 */
4525         if (phba->sli_rev == LPFC_SLI_REV3) {
4526                 phba->cfg_vmid_app_header = 0;
4527                 phba->cfg_vmid_priority_tagging = 0;
4528         }
4529
4530         if (lpfc_is_vmid_enabled(phba)) {
4531                 vport->vmid =
4532                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4533                             GFP_KERNEL);
4534                 if (!vport->vmid)
4535                         return -ENOMEM;
4536
4537                 rwlock_init(&vport->vmid_lock);
4538
4539                 /* Set the VMID parameters for the vport */
4540                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4541                 vport->vmid_inactivity_timeout =
4542                     phba->cfg_vmid_inactivity_timeout;
4543                 vport->max_vmid = phba->cfg_max_vmid;
4544                 vport->cur_vmid_cnt = 0;
4545
4546                 vport->vmid_priority_range = bitmap_zalloc
4547                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4548
4549                 if (!vport->vmid_priority_range) {
4550                         kfree(vport->vmid);
4551                         return -ENOMEM;
4552                 }
4553
4554                 hash_init(vport->hash_table);
4555         }
4556         return 0;
4557 }
4558
4559 /**
4560  * lpfc_create_port - Create an FC port
4561  * @phba: pointer to lpfc hba data structure.
4562  * @instance: a unique integer ID to this FC port.
4563  * @dev: pointer to the device data structure.
4564  *
4565  * This routine creates a FC port for the upper layer protocol. The FC port
4566  * can be created on top of either a physical port or a virtual port provided
4567  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4568  * and associates the FC port created before adding the shost into the SCSI
4569  * layer.
4570  *
4571  * Return codes
4572  *   @vport - pointer to the virtual N_Port data structure.
4573  *   NULL - port create failed.
4574  **/
4575 struct lpfc_vport *
4576 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4577 {
4578         struct lpfc_vport *vport;
4579         struct Scsi_Host  *shost = NULL;
4580         struct scsi_host_template *template;
4581         int error = 0;
4582         int i;
4583         uint64_t wwn;
4584         bool use_no_reset_hba = false;
4585         int rc;
4586
4587         if (lpfc_no_hba_reset_cnt) {
4588                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4589                     dev == &phba->pcidev->dev) {
4590                         /* Reset the port first */
4591                         lpfc_sli_brdrestart(phba);
4592                         rc = lpfc_sli_chipset_init(phba);
4593                         if (rc)
4594                                 return NULL;
4595                 }
4596                 wwn = lpfc_get_wwpn(phba);
4597         }
4598
4599         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4600                 if (wwn == lpfc_no_hba_reset[i]) {
4601                         lpfc_printf_log(phba, KERN_ERR,
4602                                         LOG_TRACE_EVENT,
4603                                         "6020 Setting use_no_reset port=%llx\n",
4604                                         wwn);
4605                         use_no_reset_hba = true;
4606                         break;
4607                 }
4608         }
4609
4610         /* Seed template for SCSI host registration */
4611         if (dev == &phba->pcidev->dev) {
4612                 template = &phba->port_template;
4613
4614                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4615                         /* Seed physical port template */
4616                         memcpy(template, &lpfc_template, sizeof(*template));
4617
4618                         if (use_no_reset_hba)
4619                                 /* template is for a no reset SCSI Host */
4620                                 template->eh_host_reset_handler = NULL;
4621
4622                         /* Template for all vports this physical port creates */
4623                         memcpy(&phba->vport_template, &lpfc_template,
4624                                sizeof(*template));
4625                         phba->vport_template.shost_groups = lpfc_vport_groups;
4626                         phba->vport_template.eh_bus_reset_handler = NULL;
4627                         phba->vport_template.eh_host_reset_handler = NULL;
4628                         phba->vport_template.vendor_id = 0;
4629
4630                         /* Initialize the host templates with updated value */
4631                         if (phba->sli_rev == LPFC_SLI_REV4) {
4632                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4633                                 phba->vport_template.sg_tablesize =
4634                                         phba->cfg_scsi_seg_cnt;
4635                         } else {
4636                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4637                                 phba->vport_template.sg_tablesize =
4638                                         phba->cfg_sg_seg_cnt;
4639                         }
4640
4641                 } else {
4642                         /* NVMET is for physical port only */
4643                         memcpy(template, &lpfc_template_nvme,
4644                                sizeof(*template));
4645                 }
4646         } else {
4647                 template = &phba->vport_template;
4648         }
4649
4650         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4651         if (!shost)
4652                 goto out;
4653
4654         vport = (struct lpfc_vport *) shost->hostdata;
4655         vport->phba = phba;
4656         vport->load_flag |= FC_LOADING;
4657         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4658         vport->fc_rscn_flush = 0;
4659         lpfc_get_vport_cfgparam(vport);
4660
4661         /* Adjust value in vport */
4662         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4663
4664         shost->unique_id = instance;
4665         shost->max_id = LPFC_MAX_TARGET;
4666         shost->max_lun = vport->cfg_max_luns;
4667         shost->this_id = -1;
4668         shost->max_cmd_len = 16;
4669
4670         if (phba->sli_rev == LPFC_SLI_REV4) {
4671                 if (!phba->cfg_fcp_mq_threshold ||
4672                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4673                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4674
4675                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4676                                             phba->cfg_fcp_mq_threshold);
4677
4678                 shost->dma_boundary =
4679                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4680
4681                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4682                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4683                 else
4684                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4685         } else
4686                 /* SLI-3 has a limited number of hardware queues (3),
4687                  * thus there is only one for FCP processing.
4688                  */
4689                 shost->nr_hw_queues = 1;
4690
4691         /*
4692          * Set initial can_queue value since 0 is no longer supported and
4693          * scsi_add_host will fail. This will be adjusted later based on the
4694          * max xri value determined in hba setup.
4695          */
4696         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4697         if (dev != &phba->pcidev->dev) {
4698                 shost->transportt = lpfc_vport_transport_template;
4699                 vport->port_type = LPFC_NPIV_PORT;
4700         } else {
4701                 shost->transportt = lpfc_transport_template;
4702                 vport->port_type = LPFC_PHYSICAL_PORT;
4703         }
4704
4705         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4706                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4707                         "SEGcnt %d/%d\n",
4708                         vport->port_type, shost->sg_tablesize,
4709                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4710
4711         /* Allocate the resources for VMID */
4712         rc = lpfc_vmid_res_alloc(phba, vport);
4713
4714         if (rc)
4715                 goto out;
4716
4717         /* Initialize all internally managed lists. */
4718         INIT_LIST_HEAD(&vport->fc_nodes);
4719         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4720         spin_lock_init(&vport->work_port_lock);
4721
4722         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4723
4724         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4725
4726         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4727
4728         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4729                 lpfc_setup_bg(phba, shost);
4730
4731         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4732         if (error)
4733                 goto out_put_shost;
4734
4735         spin_lock_irq(&phba->port_list_lock);
4736         list_add_tail(&vport->listentry, &phba->port_list);
4737         spin_unlock_irq(&phba->port_list_lock);
4738         return vport;
4739
4740 out_put_shost:
4741         kfree(vport->vmid);
4742         bitmap_free(vport->vmid_priority_range);
4743         scsi_host_put(shost);
4744 out:
4745         return NULL;
4746 }
4747
4748 /**
4749  * destroy_port -  destroy an FC port
4750  * @vport: pointer to an lpfc virtual N_Port data structure.
4751  *
4752  * This routine destroys a FC port from the upper layer protocol. All the
4753  * resources associated with the port are released.
4754  **/
4755 void
4756 destroy_port(struct lpfc_vport *vport)
4757 {
4758         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4759         struct lpfc_hba  *phba = vport->phba;
4760
4761         lpfc_debugfs_terminate(vport);
4762         fc_remove_host(shost);
4763         scsi_remove_host(shost);
4764
4765         spin_lock_irq(&phba->port_list_lock);
4766         list_del_init(&vport->listentry);
4767         spin_unlock_irq(&phba->port_list_lock);
4768
4769         lpfc_cleanup(vport);
4770         return;
4771 }
4772
4773 /**
4774  * lpfc_get_instance - Get a unique integer ID
4775  *
4776  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4777  * uses the kernel idr facility to perform the task.
4778  *
4779  * Return codes:
4780  *   instance - a unique integer ID allocated as the new instance.
4781  *   -1 - lpfc get instance failed.
4782  **/
4783 int
4784 lpfc_get_instance(void)
4785 {
4786         int ret;
4787
4788         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4789         return ret < 0 ? -1 : ret;
4790 }
4791
4792 /**
4793  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4794  * @shost: pointer to SCSI host data structure.
4795  * @time: elapsed time of the scan in jiffies.
4796  *
4797  * This routine is called by the SCSI layer with a SCSI host to determine
4798  * whether the scan host is finished.
4799  *
4800  * Note: there is no scan_start function as adapter initialization will have
4801  * asynchronously kicked off the link initialization.
4802  *
4803  * Return codes
4804  *   0 - SCSI host scan is not over yet.
4805  *   1 - SCSI host scan is over.
4806  **/
4807 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4808 {
4809         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4810         struct lpfc_hba   *phba = vport->phba;
4811         int stat = 0;
4812
4813         spin_lock_irq(shost->host_lock);
4814
4815         if (vport->load_flag & FC_UNLOADING) {
4816                 stat = 1;
4817                 goto finished;
4818         }
4819         if (time >= msecs_to_jiffies(30 * 1000)) {
4820                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4821                                 "0461 Scanning longer than 30 "
4822                                 "seconds.  Continuing initialization\n");
4823                 stat = 1;
4824                 goto finished;
4825         }
4826         if (time >= msecs_to_jiffies(15 * 1000) &&
4827             phba->link_state <= LPFC_LINK_DOWN) {
4828                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4829                                 "0465 Link down longer than 15 "
4830                                 "seconds.  Continuing initialization\n");
4831                 stat = 1;
4832                 goto finished;
4833         }
4834
4835         if (vport->port_state != LPFC_VPORT_READY)
4836                 goto finished;
4837         if (vport->num_disc_nodes || vport->fc_prli_sent)
4838                 goto finished;
4839         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4840                 goto finished;
4841         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4842                 goto finished;
4843
4844         stat = 1;
4845
4846 finished:
4847         spin_unlock_irq(shost->host_lock);
4848         return stat;
4849 }
4850
4851 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4852 {
4853         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4854         struct lpfc_hba   *phba = vport->phba;
4855
4856         fc_host_supported_speeds(shost) = 0;
4857         /*
4858          * Avoid reporting supported link speed for FCoE as it can't be
4859          * controlled via FCoE.
4860          */
4861         if (phba->hba_flag & HBA_FCOE_MODE)
4862                 return;
4863
4864         if (phba->lmt & LMT_256Gb)
4865                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4866         if (phba->lmt & LMT_128Gb)
4867                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4868         if (phba->lmt & LMT_64Gb)
4869                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4870         if (phba->lmt & LMT_32Gb)
4871                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4872         if (phba->lmt & LMT_16Gb)
4873                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4874         if (phba->lmt & LMT_10Gb)
4875                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4876         if (phba->lmt & LMT_8Gb)
4877                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4878         if (phba->lmt & LMT_4Gb)
4879                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4880         if (phba->lmt & LMT_2Gb)
4881                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4882         if (phba->lmt & LMT_1Gb)
4883                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4884 }
4885
4886 /**
4887  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4888  * @shost: pointer to SCSI host data structure.
4889  *
4890  * This routine initializes a given SCSI host attributes on a FC port. The
4891  * SCSI host can be either on top of a physical port or a virtual port.
4892  **/
4893 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4894 {
4895         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4896         struct lpfc_hba   *phba = vport->phba;
4897         /*
4898          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4899          */
4900
4901         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4902         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4903         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4904
4905         memset(fc_host_supported_fc4s(shost), 0,
4906                sizeof(fc_host_supported_fc4s(shost)));
4907         fc_host_supported_fc4s(shost)[2] = 1;
4908         fc_host_supported_fc4s(shost)[7] = 1;
4909
4910         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4911                                  sizeof fc_host_symbolic_name(shost));
4912
4913         lpfc_host_supported_speeds_set(shost);
4914
4915         fc_host_maxframe_size(shost) =
4916                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4917                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4918
4919         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4920
4921         /* This value is also unchanging */
4922         memset(fc_host_active_fc4s(shost), 0,
4923                sizeof(fc_host_active_fc4s(shost)));
4924         fc_host_active_fc4s(shost)[2] = 1;
4925         fc_host_active_fc4s(shost)[7] = 1;
4926
4927         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4928         spin_lock_irq(shost->host_lock);
4929         vport->load_flag &= ~FC_LOADING;
4930         spin_unlock_irq(shost->host_lock);
4931 }
4932
4933 /**
4934  * lpfc_stop_port_s3 - Stop SLI3 device port
4935  * @phba: pointer to lpfc hba data structure.
4936  *
4937  * This routine is invoked to stop an SLI3 device port, it stops the device
4938  * from generating interrupts and stops the device driver's timers for the
4939  * device.
4940  **/
4941 static void
4942 lpfc_stop_port_s3(struct lpfc_hba *phba)
4943 {
4944         /* Clear all interrupt enable conditions */
4945         writel(0, phba->HCregaddr);
4946         readl(phba->HCregaddr); /* flush */
4947         /* Clear all pending interrupts */
4948         writel(0xffffffff, phba->HAregaddr);
4949         readl(phba->HAregaddr); /* flush */
4950
4951         /* Reset some HBA SLI setup states */
4952         lpfc_stop_hba_timers(phba);
4953         phba->pport->work_port_events = 0;
4954 }
4955
4956 /**
4957  * lpfc_stop_port_s4 - Stop SLI4 device port
4958  * @phba: pointer to lpfc hba data structure.
4959  *
4960  * This routine is invoked to stop an SLI4 device port, it stops the device
4961  * from generating interrupts and stops the device driver's timers for the
4962  * device.
4963  **/
4964 static void
4965 lpfc_stop_port_s4(struct lpfc_hba *phba)
4966 {
4967         /* Reset some HBA SLI4 setup states */
4968         lpfc_stop_hba_timers(phba);
4969         if (phba->pport)
4970                 phba->pport->work_port_events = 0;
4971         phba->sli4_hba.intr_enable = 0;
4972 }
4973
4974 /**
4975  * lpfc_stop_port - Wrapper function for stopping hba port
4976  * @phba: Pointer to HBA context object.
4977  *
4978  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4979  * the API jump table function pointer from the lpfc_hba struct.
4980  **/
4981 void
4982 lpfc_stop_port(struct lpfc_hba *phba)
4983 {
4984         phba->lpfc_stop_port(phba);
4985
4986         if (phba->wq)
4987                 flush_workqueue(phba->wq);
4988 }
4989
4990 /**
4991  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4992  * @phba: Pointer to hba for which this call is being executed.
4993  *
4994  * This routine starts the timer waiting for the FCF rediscovery to complete.
4995  **/
4996 void
4997 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4998 {
4999         unsigned long fcf_redisc_wait_tmo =
5000                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
5001         /* Start fcf rediscovery wait period timer */
5002         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
5003         spin_lock_irq(&phba->hbalock);
5004         /* Allow action to new fcf asynchronous event */
5005         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
5006         /* Mark the FCF rediscovery pending state */
5007         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
5008         spin_unlock_irq(&phba->hbalock);
5009 }
5010
5011 /**
5012  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
5013  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5014  *
5015  * This routine is invoked when waiting for FCF table rediscover has been
5016  * timed out. If new FCF record(s) has (have) been discovered during the
5017  * wait period, a new FCF event shall be added to the FCOE async event
5018  * list, and then worker thread shall be waked up for processing from the
5019  * worker thread context.
5020  **/
5021 static void
5022 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
5023 {
5024         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
5025
5026         /* Don't send FCF rediscovery event if timer cancelled */
5027         spin_lock_irq(&phba->hbalock);
5028         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
5029                 spin_unlock_irq(&phba->hbalock);
5030                 return;
5031         }
5032         /* Clear FCF rediscovery timer pending flag */
5033         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
5034         /* FCF rediscovery event to worker thread */
5035         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
5036         spin_unlock_irq(&phba->hbalock);
5037         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
5038                         "2776 FCF rediscover quiescent timer expired\n");
5039         /* wake up worker thread */
5040         lpfc_worker_wake_up(phba);
5041 }
5042
5043 /**
5044  * lpfc_vmid_poll - VMID timeout detection
5045  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5046  *
5047  * This routine is invoked when there is no I/O on by a VM for the specified
5048  * amount of time. When this situation is detected, the VMID has to be
5049  * deregistered from the switch and all the local resources freed. The VMID
5050  * will be reassigned to the VM once the I/O begins.
5051  **/
5052 static void
5053 lpfc_vmid_poll(struct timer_list *t)
5054 {
5055         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5056         u32 wake_up = 0;
5057
5058         /* check if there is a need to issue QFPA */
5059         if (phba->pport->vmid_priority_tagging) {
5060                 wake_up = 1;
5061                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5062         }
5063
5064         /* Is the vmid inactivity timer enabled */
5065         if (phba->pport->vmid_inactivity_timeout ||
5066             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5067                 wake_up = 1;
5068                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5069         }
5070
5071         if (wake_up)
5072                 lpfc_worker_wake_up(phba);
5073
5074         /* restart the timer for the next iteration */
5075         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5076                                                         LPFC_VMID_TIMER));
5077 }
5078
5079 /**
5080  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5081  * @phba: pointer to lpfc hba data structure.
5082  * @acqe_link: pointer to the async link completion queue entry.
5083  *
5084  * This routine is to parse the SLI4 link-attention link fault code.
5085  **/
5086 static void
5087 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5088                            struct lpfc_acqe_link *acqe_link)
5089 {
5090         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5091         case LPFC_ASYNC_LINK_FAULT_NONE:
5092         case LPFC_ASYNC_LINK_FAULT_LOCAL:
5093         case LPFC_ASYNC_LINK_FAULT_REMOTE:
5094         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5095                 break;
5096         default:
5097                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5098                                 "0398 Unknown link fault code: x%x\n",
5099                                 bf_get(lpfc_acqe_link_fault, acqe_link));
5100                 break;
5101         }
5102 }
5103
5104 /**
5105  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5106  * @phba: pointer to lpfc hba data structure.
5107  * @acqe_link: pointer to the async link completion queue entry.
5108  *
5109  * This routine is to parse the SLI4 link attention type and translate it
5110  * into the base driver's link attention type coding.
5111  *
5112  * Return: Link attention type in terms of base driver's coding.
5113  **/
5114 static uint8_t
5115 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5116                           struct lpfc_acqe_link *acqe_link)
5117 {
5118         uint8_t att_type;
5119
5120         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5121         case LPFC_ASYNC_LINK_STATUS_DOWN:
5122         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5123                 att_type = LPFC_ATT_LINK_DOWN;
5124                 break;
5125         case LPFC_ASYNC_LINK_STATUS_UP:
5126                 /* Ignore physical link up events - wait for logical link up */
5127                 att_type = LPFC_ATT_RESERVED;
5128                 break;
5129         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5130                 att_type = LPFC_ATT_LINK_UP;
5131                 break;
5132         default:
5133                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5134                                 "0399 Invalid link attention type: x%x\n",
5135                                 bf_get(lpfc_acqe_link_status, acqe_link));
5136                 att_type = LPFC_ATT_RESERVED;
5137                 break;
5138         }
5139         return att_type;
5140 }
5141
5142 /**
5143  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5144  * @phba: pointer to lpfc hba data structure.
5145  *
5146  * This routine is to get an SLI3 FC port's link speed in Mbps.
5147  *
5148  * Return: link speed in terms of Mbps.
5149  **/
5150 uint32_t
5151 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5152 {
5153         uint32_t link_speed;
5154
5155         if (!lpfc_is_link_up(phba))
5156                 return 0;
5157
5158         if (phba->sli_rev <= LPFC_SLI_REV3) {
5159                 switch (phba->fc_linkspeed) {
5160                 case LPFC_LINK_SPEED_1GHZ:
5161                         link_speed = 1000;
5162                         break;
5163                 case LPFC_LINK_SPEED_2GHZ:
5164                         link_speed = 2000;
5165                         break;
5166                 case LPFC_LINK_SPEED_4GHZ:
5167                         link_speed = 4000;
5168                         break;
5169                 case LPFC_LINK_SPEED_8GHZ:
5170                         link_speed = 8000;
5171                         break;
5172                 case LPFC_LINK_SPEED_10GHZ:
5173                         link_speed = 10000;
5174                         break;
5175                 case LPFC_LINK_SPEED_16GHZ:
5176                         link_speed = 16000;
5177                         break;
5178                 default:
5179                         link_speed = 0;
5180                 }
5181         } else {
5182                 if (phba->sli4_hba.link_state.logical_speed)
5183                         link_speed =
5184                               phba->sli4_hba.link_state.logical_speed;
5185                 else
5186                         link_speed = phba->sli4_hba.link_state.speed;
5187         }
5188         return link_speed;
5189 }
5190
5191 /**
5192  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5193  * @phba: pointer to lpfc hba data structure.
5194  * @evt_code: asynchronous event code.
5195  * @speed_code: asynchronous event link speed code.
5196  *
5197  * This routine is to parse the giving SLI4 async event link speed code into
5198  * value of Mbps for the link speed.
5199  *
5200  * Return: link speed in terms of Mbps.
5201  **/
5202 static uint32_t
5203 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5204                            uint8_t speed_code)
5205 {
5206         uint32_t port_speed;
5207
5208         switch (evt_code) {
5209         case LPFC_TRAILER_CODE_LINK:
5210                 switch (speed_code) {
5211                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5212                         port_speed = 0;
5213                         break;
5214                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5215                         port_speed = 10;
5216                         break;
5217                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5218                         port_speed = 100;
5219                         break;
5220                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5221                         port_speed = 1000;
5222                         break;
5223                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5224                         port_speed = 10000;
5225                         break;
5226                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5227                         port_speed = 20000;
5228                         break;
5229                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5230                         port_speed = 25000;
5231                         break;
5232                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5233                         port_speed = 40000;
5234                         break;
5235                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5236                         port_speed = 100000;
5237                         break;
5238                 default:
5239                         port_speed = 0;
5240                 }
5241                 break;
5242         case LPFC_TRAILER_CODE_FC:
5243                 switch (speed_code) {
5244                 case LPFC_FC_LA_SPEED_UNKNOWN:
5245                         port_speed = 0;
5246                         break;
5247                 case LPFC_FC_LA_SPEED_1G:
5248                         port_speed = 1000;
5249                         break;
5250                 case LPFC_FC_LA_SPEED_2G:
5251                         port_speed = 2000;
5252                         break;
5253                 case LPFC_FC_LA_SPEED_4G:
5254                         port_speed = 4000;
5255                         break;
5256                 case LPFC_FC_LA_SPEED_8G:
5257                         port_speed = 8000;
5258                         break;
5259                 case LPFC_FC_LA_SPEED_10G:
5260                         port_speed = 10000;
5261                         break;
5262                 case LPFC_FC_LA_SPEED_16G:
5263                         port_speed = 16000;
5264                         break;
5265                 case LPFC_FC_LA_SPEED_32G:
5266                         port_speed = 32000;
5267                         break;
5268                 case LPFC_FC_LA_SPEED_64G:
5269                         port_speed = 64000;
5270                         break;
5271                 case LPFC_FC_LA_SPEED_128G:
5272                         port_speed = 128000;
5273                         break;
5274                 case LPFC_FC_LA_SPEED_256G:
5275                         port_speed = 256000;
5276                         break;
5277                 default:
5278                         port_speed = 0;
5279                 }
5280                 break;
5281         default:
5282                 port_speed = 0;
5283         }
5284         return port_speed;
5285 }
5286
5287 /**
5288  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5289  * @phba: pointer to lpfc hba data structure.
5290  * @acqe_link: pointer to the async link completion queue entry.
5291  *
5292  * This routine is to handle the SLI4 asynchronous FCoE link event.
5293  **/
5294 static void
5295 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5296                          struct lpfc_acqe_link *acqe_link)
5297 {
5298         struct lpfc_dmabuf *mp;
5299         LPFC_MBOXQ_t *pmb;
5300         MAILBOX_t *mb;
5301         struct lpfc_mbx_read_top *la;
5302         uint8_t att_type;
5303         int rc;
5304
5305         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5306         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5307                 return;
5308         phba->fcoe_eventtag = acqe_link->event_tag;
5309         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5310         if (!pmb) {
5311                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5312                                 "0395 The mboxq allocation failed\n");
5313                 return;
5314         }
5315         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5316         if (!mp) {
5317                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5318                                 "0396 The lpfc_dmabuf allocation failed\n");
5319                 goto out_free_pmb;
5320         }
5321         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5322         if (!mp->virt) {
5323                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5324                                 "0397 The mbuf allocation failed\n");
5325                 goto out_free_dmabuf;
5326         }
5327
5328         /* Cleanup any outstanding ELS commands */
5329         lpfc_els_flush_all_cmd(phba);
5330
5331         /* Block ELS IOCBs until we have done process link event */
5332         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5333
5334         /* Update link event statistics */
5335         phba->sli.slistat.link_event++;
5336
5337         /* Create lpfc_handle_latt mailbox command from link ACQE */
5338         lpfc_read_topology(phba, pmb, mp);
5339         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5340         pmb->vport = phba->pport;
5341
5342         /* Keep the link status for extra SLI4 state machine reference */
5343         phba->sli4_hba.link_state.speed =
5344                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5345                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5346         phba->sli4_hba.link_state.duplex =
5347                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5348         phba->sli4_hba.link_state.status =
5349                                 bf_get(lpfc_acqe_link_status, acqe_link);
5350         phba->sli4_hba.link_state.type =
5351                                 bf_get(lpfc_acqe_link_type, acqe_link);
5352         phba->sli4_hba.link_state.number =
5353                                 bf_get(lpfc_acqe_link_number, acqe_link);
5354         phba->sli4_hba.link_state.fault =
5355                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5356         phba->sli4_hba.link_state.logical_speed =
5357                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5358
5359         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5360                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5361                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5362                         "Logical speed:%dMbps Fault:%d\n",
5363                         phba->sli4_hba.link_state.speed,
5364                         phba->sli4_hba.link_state.topology,
5365                         phba->sli4_hba.link_state.status,
5366                         phba->sli4_hba.link_state.type,
5367                         phba->sli4_hba.link_state.number,
5368                         phba->sli4_hba.link_state.logical_speed,
5369                         phba->sli4_hba.link_state.fault);
5370         /*
5371          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5372          * topology info. Note: Optional for non FC-AL ports.
5373          */
5374         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5375                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5376                 if (rc == MBX_NOT_FINISHED) {
5377                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
5378                         goto out_free_dmabuf;
5379                 }
5380                 return;
5381         }
5382         /*
5383          * For FCoE Mode: fill in all the topology information we need and call
5384          * the READ_TOPOLOGY completion routine to continue without actually
5385          * sending the READ_TOPOLOGY mailbox command to the port.
5386          */
5387         /* Initialize completion status */
5388         mb = &pmb->u.mb;
5389         mb->mbxStatus = MBX_SUCCESS;
5390
5391         /* Parse port fault information field */
5392         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5393
5394         /* Parse and translate link attention fields */
5395         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5396         la->eventTag = acqe_link->event_tag;
5397         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5398         bf_set(lpfc_mbx_read_top_link_spd, la,
5399                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5400
5401         /* Fake the the following irrelvant fields */
5402         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5403         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5404         bf_set(lpfc_mbx_read_top_il, la, 0);
5405         bf_set(lpfc_mbx_read_top_pb, la, 0);
5406         bf_set(lpfc_mbx_read_top_fa, la, 0);
5407         bf_set(lpfc_mbx_read_top_mm, la, 0);
5408
5409         /* Invoke the lpfc_handle_latt mailbox command callback function */
5410         lpfc_mbx_cmpl_read_topology(phba, pmb);
5411
5412         return;
5413
5414 out_free_dmabuf:
5415         kfree(mp);
5416 out_free_pmb:
5417         mempool_free(pmb, phba->mbox_mem_pool);
5418 }
5419
5420 /**
5421  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5422  * topology.
5423  * @phba: pointer to lpfc hba data structure.
5424  * @speed_code: asynchronous event link speed code.
5425  *
5426  * This routine is to parse the giving SLI4 async event link speed code into
5427  * value of Read topology link speed.
5428  *
5429  * Return: link speed in terms of Read topology.
5430  **/
5431 static uint8_t
5432 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5433 {
5434         uint8_t port_speed;
5435
5436         switch (speed_code) {
5437         case LPFC_FC_LA_SPEED_1G:
5438                 port_speed = LPFC_LINK_SPEED_1GHZ;
5439                 break;
5440         case LPFC_FC_LA_SPEED_2G:
5441                 port_speed = LPFC_LINK_SPEED_2GHZ;
5442                 break;
5443         case LPFC_FC_LA_SPEED_4G:
5444                 port_speed = LPFC_LINK_SPEED_4GHZ;
5445                 break;
5446         case LPFC_FC_LA_SPEED_8G:
5447                 port_speed = LPFC_LINK_SPEED_8GHZ;
5448                 break;
5449         case LPFC_FC_LA_SPEED_16G:
5450                 port_speed = LPFC_LINK_SPEED_16GHZ;
5451                 break;
5452         case LPFC_FC_LA_SPEED_32G:
5453                 port_speed = LPFC_LINK_SPEED_32GHZ;
5454                 break;
5455         case LPFC_FC_LA_SPEED_64G:
5456                 port_speed = LPFC_LINK_SPEED_64GHZ;
5457                 break;
5458         case LPFC_FC_LA_SPEED_128G:
5459                 port_speed = LPFC_LINK_SPEED_128GHZ;
5460                 break;
5461         case LPFC_FC_LA_SPEED_256G:
5462                 port_speed = LPFC_LINK_SPEED_256GHZ;
5463                 break;
5464         default:
5465                 port_speed = 0;
5466                 break;
5467         }
5468
5469         return port_speed;
5470 }
5471
5472 void
5473 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5474 {
5475         struct rxtable_entry *entry;
5476         int cnt = 0, head, tail, last, start;
5477
5478         head = atomic_read(&phba->rxtable_idx_head);
5479         tail = atomic_read(&phba->rxtable_idx_tail);
5480         if (!phba->rxtable || head == tail) {
5481                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5482                                 "4411 Rxtable is empty\n");
5483                 return;
5484         }
5485         last = tail;
5486         start = head;
5487
5488         /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5489         while (start != last) {
5490                 if (start)
5491                         start--;
5492                 else
5493                         start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5494                 entry = &phba->rxtable[start];
5495                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5496                                 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5497                                 "Lat %lld ASz %lld Info %02d BWUtil %d "
5498                                 "Int %d slot %d\n",
5499                                 cnt, entry->max_bytes_per_interval,
5500                                 entry->total_bytes, entry->rcv_bytes,
5501                                 entry->avg_io_latency, entry->avg_io_size,
5502                                 entry->cmf_info, entry->timer_utilization,
5503                                 entry->timer_interval, start);
5504                 cnt++;
5505                 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5506                         return;
5507         }
5508 }
5509
5510 /**
5511  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5512  * @phba: pointer to lpfc hba data structure.
5513  * @dtag: FPIN descriptor received
5514  *
5515  * Increment the FPIN received counter/time when it happens.
5516  */
5517 void
5518 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5519 {
5520         struct lpfc_cgn_info *cp;
5521         struct tm broken;
5522         struct timespec64 cur_time;
5523         u32 cnt;
5524         u16 value;
5525
5526         /* Make sure we have a congestion info buffer */
5527         if (!phba->cgn_i)
5528                 return;
5529         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5530         ktime_get_real_ts64(&cur_time);
5531         time64_to_tm(cur_time.tv_sec, 0, &broken);
5532
5533         /* Update congestion statistics */
5534         switch (dtag) {
5535         case ELS_DTAG_LNK_INTEGRITY:
5536                 cnt = le32_to_cpu(cp->link_integ_notification);
5537                 cnt++;
5538                 cp->link_integ_notification = cpu_to_le32(cnt);
5539
5540                 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5541                 cp->cgn_stat_lnk_day = broken.tm_mday;
5542                 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5543                 cp->cgn_stat_lnk_hour = broken.tm_hour;
5544                 cp->cgn_stat_lnk_min = broken.tm_min;
5545                 cp->cgn_stat_lnk_sec = broken.tm_sec;
5546                 break;
5547         case ELS_DTAG_DELIVERY:
5548                 cnt = le32_to_cpu(cp->delivery_notification);
5549                 cnt++;
5550                 cp->delivery_notification = cpu_to_le32(cnt);
5551
5552                 cp->cgn_stat_del_month = broken.tm_mon + 1;
5553                 cp->cgn_stat_del_day = broken.tm_mday;
5554                 cp->cgn_stat_del_year = broken.tm_year - 100;
5555                 cp->cgn_stat_del_hour = broken.tm_hour;
5556                 cp->cgn_stat_del_min = broken.tm_min;
5557                 cp->cgn_stat_del_sec = broken.tm_sec;
5558                 break;
5559         case ELS_DTAG_PEER_CONGEST:
5560                 cnt = le32_to_cpu(cp->cgn_peer_notification);
5561                 cnt++;
5562                 cp->cgn_peer_notification = cpu_to_le32(cnt);
5563
5564                 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5565                 cp->cgn_stat_peer_day = broken.tm_mday;
5566                 cp->cgn_stat_peer_year = broken.tm_year - 100;
5567                 cp->cgn_stat_peer_hour = broken.tm_hour;
5568                 cp->cgn_stat_peer_min = broken.tm_min;
5569                 cp->cgn_stat_peer_sec = broken.tm_sec;
5570                 break;
5571         case ELS_DTAG_CONGESTION:
5572                 cnt = le32_to_cpu(cp->cgn_notification);
5573                 cnt++;
5574                 cp->cgn_notification = cpu_to_le32(cnt);
5575
5576                 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5577                 cp->cgn_stat_cgn_day = broken.tm_mday;
5578                 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5579                 cp->cgn_stat_cgn_hour = broken.tm_hour;
5580                 cp->cgn_stat_cgn_min = broken.tm_min;
5581                 cp->cgn_stat_cgn_sec = broken.tm_sec;
5582         }
5583         if (phba->cgn_fpin_frequency &&
5584             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5585                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5586                 cp->cgn_stat_npm = value;
5587         }
5588         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5589                                     LPFC_CGN_CRC32_SEED);
5590         cp->cgn_info_crc = cpu_to_le32(value);
5591 }
5592
5593 /**
5594  * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5595  * @phba: pointer to lpfc hba data structure.
5596  *
5597  * Save the congestion event data every minute.
5598  * On the hour collapse all the minute data into hour data. Every day
5599  * collapse all the hour data into daily data. Separate driver
5600  * and fabrc congestion event counters that will be saved out
5601  * to the registered congestion buffer every minute.
5602  */
5603 static void
5604 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5605 {
5606         struct lpfc_cgn_info *cp;
5607         struct tm broken;
5608         struct timespec64 cur_time;
5609         uint32_t i, index;
5610         uint16_t value, mvalue;
5611         uint64_t bps;
5612         uint32_t mbps;
5613         uint32_t dvalue, wvalue, lvalue, avalue;
5614         uint64_t latsum;
5615         __le16 *ptr;
5616         __le32 *lptr;
5617         __le16 *mptr;
5618
5619         /* Make sure we have a congestion info buffer */
5620         if (!phba->cgn_i)
5621                 return;
5622         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5623
5624         if (time_before(jiffies, phba->cgn_evt_timestamp))
5625                 return;
5626         phba->cgn_evt_timestamp = jiffies +
5627                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5628         phba->cgn_evt_minute++;
5629
5630         /* We should get to this point in the routine on 1 minute intervals */
5631
5632         ktime_get_real_ts64(&cur_time);
5633         time64_to_tm(cur_time.tv_sec, 0, &broken);
5634
5635         if (phba->cgn_fpin_frequency &&
5636             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5637                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5638                 cp->cgn_stat_npm = value;
5639         }
5640
5641         /* Read and clear the latency counters for this minute */
5642         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5643         latsum = atomic64_read(&phba->cgn_latency_evt);
5644         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5645         atomic64_set(&phba->cgn_latency_evt, 0);
5646
5647         /* We need to store MB/sec bandwidth in the congestion information.
5648          * block_cnt is count of 512 byte blocks for the entire minute,
5649          * bps will get bytes per sec before finally converting to MB/sec.
5650          */
5651         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5652         phba->rx_block_cnt = 0;
5653         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5654
5655         /* Every minute */
5656         /* cgn parameters */
5657         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5658         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5659         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5660         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5661
5662         /* Fill in default LUN qdepth */
5663         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5664         cp->cgn_lunq = cpu_to_le16(value);
5665
5666         /* Record congestion buffer info - every minute
5667          * cgn_driver_evt_cnt (Driver events)
5668          * cgn_fabric_warn_cnt (Congestion Warnings)
5669          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5670          * cgn_fabric_alarm_cnt (Congestion Alarms)
5671          */
5672         index = ++cp->cgn_index_minute;
5673         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5674                 cp->cgn_index_minute = 0;
5675                 index = 0;
5676         }
5677
5678         /* Get the number of driver events in this sample and reset counter */
5679         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5680         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5681
5682         /* Get the number of warning events - FPIN and Signal for this minute */
5683         wvalue = 0;
5684         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5685             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5686             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5687                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5688         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5689
5690         /* Get the number of alarm events - FPIN and Signal for this minute */
5691         avalue = 0;
5692         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5693             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5694                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5695         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5696
5697         /* Collect the driver, warning, alarm and latency counts for this
5698          * minute into the driver congestion buffer.
5699          */
5700         ptr = &cp->cgn_drvr_min[index];
5701         value = (uint16_t)dvalue;
5702         *ptr = cpu_to_le16(value);
5703
5704         ptr = &cp->cgn_warn_min[index];
5705         value = (uint16_t)wvalue;
5706         *ptr = cpu_to_le16(value);
5707
5708         ptr = &cp->cgn_alarm_min[index];
5709         value = (uint16_t)avalue;
5710         *ptr = cpu_to_le16(value);
5711
5712         lptr = &cp->cgn_latency_min[index];
5713         if (lvalue) {
5714                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5715                 *lptr = cpu_to_le32(lvalue);
5716         } else {
5717                 *lptr = 0;
5718         }
5719
5720         /* Collect the bandwidth value into the driver's congesion buffer. */
5721         mptr = &cp->cgn_bw_min[index];
5722         *mptr = cpu_to_le16(mvalue);
5723
5724         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5725                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5726                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5727
5728         /* Every hour */
5729         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5730                 /* Record congestion buffer info - every hour
5731                  * Collapse all minutes into an hour
5732                  */
5733                 index = ++cp->cgn_index_hour;
5734                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5735                         cp->cgn_index_hour = 0;
5736                         index = 0;
5737                 }
5738
5739                 dvalue = 0;
5740                 wvalue = 0;
5741                 lvalue = 0;
5742                 avalue = 0;
5743                 mvalue = 0;
5744                 mbps = 0;
5745                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5746                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5747                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5748                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5749                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5750                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5751                 }
5752                 if (lvalue)             /* Avg of latency averages */
5753                         lvalue /= LPFC_MIN_HOUR;
5754                 if (mbps)               /* Avg of Bandwidth averages */
5755                         mvalue = mbps / LPFC_MIN_HOUR;
5756
5757                 lptr = &cp->cgn_drvr_hr[index];
5758                 *lptr = cpu_to_le32(dvalue);
5759                 lptr = &cp->cgn_warn_hr[index];
5760                 *lptr = cpu_to_le32(wvalue);
5761                 lptr = &cp->cgn_latency_hr[index];
5762                 *lptr = cpu_to_le32(lvalue);
5763                 mptr = &cp->cgn_bw_hr[index];
5764                 *mptr = cpu_to_le16(mvalue);
5765                 lptr = &cp->cgn_alarm_hr[index];
5766                 *lptr = cpu_to_le32(avalue);
5767
5768                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5769                                 "2419 Congestion Info - hour "
5770                                 "(%d): %d %d %d %d %d\n",
5771                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5772         }
5773
5774         /* Every day */
5775         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5776                 /* Record congestion buffer info - every hour
5777                  * Collapse all hours into a day. Rotate days
5778                  * after LPFC_MAX_CGN_DAYS.
5779                  */
5780                 index = ++cp->cgn_index_day;
5781                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5782                         cp->cgn_index_day = 0;
5783                         index = 0;
5784                 }
5785
5786                 /* Anytime we overwrite daily index 0, after we wrap,
5787                  * we will be overwriting the oldest day, so we must
5788                  * update the congestion data start time for that day.
5789                  * That start time should have previously been saved after
5790                  * we wrote the last days worth of data.
5791                  */
5792                 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5793                         time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5794
5795                         cp->cgn_info_month = broken.tm_mon + 1;
5796                         cp->cgn_info_day = broken.tm_mday;
5797                         cp->cgn_info_year = broken.tm_year - 100;
5798                         cp->cgn_info_hour = broken.tm_hour;
5799                         cp->cgn_info_minute = broken.tm_min;
5800                         cp->cgn_info_second = broken.tm_sec;
5801
5802                         lpfc_printf_log
5803                                 (phba, KERN_INFO, LOG_CGN_MGMT,
5804                                 "2646 CGNInfo idx0 Start Time: "
5805                                 "%d/%d/%d %d:%d:%d\n",
5806                                 cp->cgn_info_day, cp->cgn_info_month,
5807                                 cp->cgn_info_year, cp->cgn_info_hour,
5808                                 cp->cgn_info_minute, cp->cgn_info_second);
5809                 }
5810
5811                 dvalue = 0;
5812                 wvalue = 0;
5813                 lvalue = 0;
5814                 mvalue = 0;
5815                 mbps = 0;
5816                 avalue = 0;
5817                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5818                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5819                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5820                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5821                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5822                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5823                 }
5824                 if (lvalue)             /* Avg of latency averages */
5825                         lvalue /= LPFC_HOUR_DAY;
5826                 if (mbps)               /* Avg of Bandwidth averages */
5827                         mvalue = mbps / LPFC_HOUR_DAY;
5828
5829                 lptr = &cp->cgn_drvr_day[index];
5830                 *lptr = cpu_to_le32(dvalue);
5831                 lptr = &cp->cgn_warn_day[index];
5832                 *lptr = cpu_to_le32(wvalue);
5833                 lptr = &cp->cgn_latency_day[index];
5834                 *lptr = cpu_to_le32(lvalue);
5835                 mptr = &cp->cgn_bw_day[index];
5836                 *mptr = cpu_to_le16(mvalue);
5837                 lptr = &cp->cgn_alarm_day[index];
5838                 *lptr = cpu_to_le32(avalue);
5839
5840                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5841                                 "2420 Congestion Info - daily (%d): "
5842                                 "%d %d %d %d %d\n",
5843                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5844
5845                 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5846                  * so we are wrapped on any data after this.
5847                  * Save this as the start time for the next day.
5848                  */
5849                 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5850                         phba->hba_flag |= HBA_CGN_DAY_WRAP;
5851                         ktime_get_real_ts64(&phba->cgn_daily_ts);
5852                 }
5853         }
5854
5855         /* Use the frequency found in the last rcv'ed FPIN */
5856         value = phba->cgn_fpin_frequency;
5857         if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN)
5858                 cp->cgn_warn_freq = cpu_to_le16(value);
5859         if (phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM)
5860                 cp->cgn_alarm_freq = cpu_to_le16(value);
5861
5862         /* Frequency (in ms) Signal Warning/Signal Congestion Notifications
5863          * are received by the HBA
5864          */
5865         value = phba->cgn_sig_freq;
5866
5867         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5868             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5869                 cp->cgn_warn_freq = cpu_to_le16(value);
5870         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5871                 cp->cgn_alarm_freq = cpu_to_le16(value);
5872
5873         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5874                                      LPFC_CGN_CRC32_SEED);
5875         cp->cgn_info_crc = cpu_to_le32(lvalue);
5876 }
5877
5878 /**
5879  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5880  * @phba: The Hba for which this call is being executed.
5881  *
5882  * The routine calculates the latency from the beginning of the CMF timer
5883  * interval to the current point in time. It is called from IO completion
5884  * when we exceed our Bandwidth limitation for the time interval.
5885  */
5886 uint32_t
5887 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5888 {
5889         struct timespec64 cmpl_time;
5890         uint32_t msec = 0;
5891
5892         ktime_get_real_ts64(&cmpl_time);
5893
5894         /* This routine works on a ms granularity so sec and usec are
5895          * converted accordingly.
5896          */
5897         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5898                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5899                         NSEC_PER_MSEC;
5900         } else {
5901                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5902                         msec = (cmpl_time.tv_sec -
5903                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5904                         msec += ((cmpl_time.tv_nsec -
5905                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5906                 } else {
5907                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5908                                 1) * MSEC_PER_SEC;
5909                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5910                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5911                 }
5912         }
5913         return msec;
5914 }
5915
5916 /**
5917  * lpfc_cmf_timer -  This is the timer function for one congestion
5918  * rate interval.
5919  * @timer: Pointer to the high resolution timer that expired
5920  */
5921 static enum hrtimer_restart
5922 lpfc_cmf_timer(struct hrtimer *timer)
5923 {
5924         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5925                                              cmf_timer);
5926         struct rxtable_entry *entry;
5927         uint32_t io_cnt;
5928         uint32_t head, tail;
5929         uint32_t busy, max_read;
5930         uint64_t total, rcv, lat, mbpi, extra;
5931         int timer_interval = LPFC_CMF_INTERVAL;
5932         uint32_t ms;
5933         struct lpfc_cgn_stat *cgs;
5934         int cpu;
5935
5936         /* Only restart the timer if congestion mgmt is on */
5937         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5938             !phba->cmf_latency.tv_sec) {
5939                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5940                                 "6224 CMF timer exit: %d %lld\n",
5941                                 phba->cmf_active_mode,
5942                                 (uint64_t)phba->cmf_latency.tv_sec);
5943                 return HRTIMER_NORESTART;
5944         }
5945
5946         /* If pport is not ready yet, just exit and wait for
5947          * the next timer cycle to hit.
5948          */
5949         if (!phba->pport)
5950                 goto skip;
5951
5952         /* Do not block SCSI IO while in the timer routine since
5953          * total_bytes will be cleared
5954          */
5955         atomic_set(&phba->cmf_stop_io, 1);
5956
5957         /* First we need to calculate the actual ms between
5958          * the last timer interrupt and this one. We ask for
5959          * LPFC_CMF_INTERVAL, however the actual time may
5960          * vary depending on system overhead.
5961          */
5962         ms = lpfc_calc_cmf_latency(phba);
5963
5964
5965         /* Immediately after we calculate the time since the last
5966          * timer interrupt, set the start time for the next
5967          * interrupt
5968          */
5969         ktime_get_real_ts64(&phba->cmf_latency);
5970
5971         phba->cmf_link_byte_count =
5972                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5973
5974         /* Collect all the stats from the prior timer interval */
5975         total = 0;
5976         io_cnt = 0;
5977         lat = 0;
5978         rcv = 0;
5979         for_each_present_cpu(cpu) {
5980                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5981                 total += atomic64_xchg(&cgs->total_bytes, 0);
5982                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5983                 lat += atomic64_xchg(&cgs->rx_latency, 0);
5984                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5985         }
5986
5987         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5988          * returned from the last CMF_SYNC_WQE issued, from
5989          * cmf_last_sync_bw. This will be the target BW for
5990          * this next timer interval.
5991          */
5992         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5993             phba->link_state != LPFC_LINK_DOWN &&
5994             phba->hba_flag & HBA_SETUP) {
5995                 mbpi = phba->cmf_last_sync_bw;
5996                 phba->cmf_last_sync_bw = 0;
5997                 extra = 0;
5998
5999                 /* Calculate any extra bytes needed to account for the
6000                  * timer accuracy. If we are less than LPFC_CMF_INTERVAL
6001                  * add an extra 3% slop factor, equal to LPFC_CMF_INTERVAL
6002                  * add an extra 2%. The goal is to equalize total with a
6003                  * time > LPFC_CMF_INTERVAL or <= LPFC_CMF_INTERVAL + 1
6004                  */
6005                 if (ms == LPFC_CMF_INTERVAL)
6006                         extra = div_u64(total, 50);
6007                 else if (ms < LPFC_CMF_INTERVAL)
6008                         extra = div_u64(total, 33);
6009                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total + extra);
6010         } else {
6011                 /* For Monitor mode or link down we want mbpi
6012                  * to be the full link speed
6013                  */
6014                 mbpi = phba->cmf_link_byte_count;
6015         }
6016         phba->cmf_timer_cnt++;
6017
6018         if (io_cnt) {
6019                 /* Update congestion info buffer latency in us */
6020                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
6021                 atomic64_add(lat, &phba->cgn_latency_evt);
6022         }
6023         busy = atomic_xchg(&phba->cmf_busy, 0);
6024         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
6025
6026         /* Calculate MBPI for the next timer interval */
6027         if (mbpi) {
6028                 if (mbpi > phba->cmf_link_byte_count ||
6029                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
6030                         mbpi = phba->cmf_link_byte_count;
6031
6032                 /* Change max_bytes_per_interval to what the prior
6033                  * CMF_SYNC_WQE cmpl indicated.
6034                  */
6035                 if (mbpi != phba->cmf_max_bytes_per_interval)
6036                         phba->cmf_max_bytes_per_interval = mbpi;
6037         }
6038
6039         /* Save rxmonitor information for debug */
6040         if (phba->rxtable) {
6041                 head = atomic_xchg(&phba->rxtable_idx_head,
6042                                    LPFC_RXMONITOR_TABLE_IN_USE);
6043                 entry = &phba->rxtable[head];
6044                 entry->total_bytes = total;
6045                 entry->rcv_bytes = rcv;
6046                 entry->cmf_busy = busy;
6047                 entry->cmf_info = phba->cmf_active_info;
6048                 if (io_cnt) {
6049                         entry->avg_io_latency = div_u64(lat, io_cnt);
6050                         entry->avg_io_size = div_u64(rcv, io_cnt);
6051                 } else {
6052                         entry->avg_io_latency = 0;
6053                         entry->avg_io_size = 0;
6054                 }
6055                 entry->max_read_cnt = max_read;
6056                 entry->io_cnt = io_cnt;
6057                 entry->max_bytes_per_interval = mbpi;
6058                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
6059                         entry->timer_utilization = phba->cmf_last_ts;
6060                 else
6061                         entry->timer_utilization = ms;
6062                 entry->timer_interval = ms;
6063                 phba->cmf_last_ts = 0;
6064
6065                 /* Increment rxtable index */
6066                 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6067                 tail = atomic_read(&phba->rxtable_idx_tail);
6068                 if (head == tail) {
6069                         tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6070                         atomic_set(&phba->rxtable_idx_tail, tail);
6071                 }
6072                 atomic_set(&phba->rxtable_idx_head, head);
6073         }
6074
6075         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6076                 /* If Monitor mode, check if we are oversubscribed
6077                  * against the full line rate.
6078                  */
6079                 if (mbpi && total > mbpi)
6080                         atomic_inc(&phba->cgn_driver_evt_cnt);
6081         }
6082         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
6083
6084         /* Each minute save Fabric and Driver congestion information */
6085         lpfc_cgn_save_evt_cnt(phba);
6086
6087         /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6088          * minute, adjust our next timer interval, if needed, to ensure a
6089          * 1 minute granularity when we get the next timer interrupt.
6090          */
6091         if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6092                        phba->cgn_evt_timestamp)) {
6093                 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6094                                                   jiffies);
6095                 if (timer_interval <= 0)
6096                         timer_interval = LPFC_CMF_INTERVAL;
6097
6098                 /* If we adjust timer_interval, max_bytes_per_interval
6099                  * needs to be adjusted as well.
6100                  */
6101                 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6102                                                     timer_interval, 1000);
6103                 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6104                         phba->cmf_max_bytes_per_interval =
6105                                 phba->cmf_link_byte_count;
6106         }
6107
6108         /* Since total_bytes has already been zero'ed, its okay to unblock
6109          * after max_bytes_per_interval is setup.
6110          */
6111         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6112                 queue_work(phba->wq, &phba->unblock_request_work);
6113
6114         /* SCSI IO is now unblocked */
6115         atomic_set(&phba->cmf_stop_io, 0);
6116
6117 skip:
6118         hrtimer_forward_now(timer,
6119                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6120         return HRTIMER_RESTART;
6121 }
6122
6123 #define trunk_link_status(__idx)\
6124         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6125                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6126                 "Link up" : "Link down") : "NA"
6127 /* Did port __idx reported an error */
6128 #define trunk_port_fault(__idx)\
6129         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6130                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6131
6132 static void
6133 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6134                               struct lpfc_acqe_fc_la *acqe_fc)
6135 {
6136         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6137         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6138
6139         phba->sli4_hba.link_state.speed =
6140                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6141                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6142
6143         phba->sli4_hba.link_state.logical_speed =
6144                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6145         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6146         phba->fc_linkspeed =
6147                  lpfc_async_link_speed_to_read_top(
6148                                 phba,
6149                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6150
6151         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6152                 phba->trunk_link.link0.state =
6153                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6154                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6155                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6156         }
6157         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6158                 phba->trunk_link.link1.state =
6159                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6160                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6161                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6162         }
6163         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6164                 phba->trunk_link.link2.state =
6165                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6166                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6167                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6168         }
6169         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6170                 phba->trunk_link.link3.state =
6171                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6172                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6173                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6174         }
6175
6176         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6177                         "2910 Async FC Trunking Event - Speed:%d\n"
6178                         "\tLogical speed:%d "
6179                         "port0: %s port1: %s port2: %s port3: %s\n",
6180                         phba->sli4_hba.link_state.speed,
6181                         phba->sli4_hba.link_state.logical_speed,
6182                         trunk_link_status(0), trunk_link_status(1),
6183                         trunk_link_status(2), trunk_link_status(3));
6184
6185         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6186                 lpfc_cmf_signal_init(phba);
6187
6188         if (port_fault)
6189                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6190                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6191                                 /*
6192                                  * SLI-4: We have only 0xA error codes
6193                                  * defined as of now. print an appropriate
6194                                  * message in case driver needs to be updated.
6195                                  */
6196                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6197                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6198                                 trunk_port_fault(0), trunk_port_fault(1),
6199                                 trunk_port_fault(2), trunk_port_fault(3));
6200 }
6201
6202
6203 /**
6204  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6205  * @phba: pointer to lpfc hba data structure.
6206  * @acqe_fc: pointer to the async fc completion queue entry.
6207  *
6208  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6209  * that the event was received and then issue a read_topology mailbox command so
6210  * that the rest of the driver will treat it the same as SLI3.
6211  **/
6212 static void
6213 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6214 {
6215         struct lpfc_dmabuf *mp;
6216         LPFC_MBOXQ_t *pmb;
6217         MAILBOX_t *mb;
6218         struct lpfc_mbx_read_top *la;
6219         int rc;
6220
6221         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6222             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6223                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6224                                 "2895 Non FC link Event detected.(%d)\n",
6225                                 bf_get(lpfc_trailer_type, acqe_fc));
6226                 return;
6227         }
6228
6229         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6230             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6231                 lpfc_update_trunk_link_status(phba, acqe_fc);
6232                 return;
6233         }
6234
6235         /* Keep the link status for extra SLI4 state machine reference */
6236         phba->sli4_hba.link_state.speed =
6237                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6238                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6239         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6240         phba->sli4_hba.link_state.topology =
6241                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6242         phba->sli4_hba.link_state.status =
6243                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6244         phba->sli4_hba.link_state.type =
6245                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6246         phba->sli4_hba.link_state.number =
6247                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6248         phba->sli4_hba.link_state.fault =
6249                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6250
6251         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6252             LPFC_FC_LA_TYPE_LINK_DOWN)
6253                 phba->sli4_hba.link_state.logical_speed = 0;
6254         else if (!phba->sli4_hba.conf_trunk)
6255                 phba->sli4_hba.link_state.logical_speed =
6256                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6257
6258         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6259                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6260                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6261                         "%dMbps Fault:%d\n",
6262                         phba->sli4_hba.link_state.speed,
6263                         phba->sli4_hba.link_state.topology,
6264                         phba->sli4_hba.link_state.status,
6265                         phba->sli4_hba.link_state.type,
6266                         phba->sli4_hba.link_state.number,
6267                         phba->sli4_hba.link_state.logical_speed,
6268                         phba->sli4_hba.link_state.fault);
6269         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6270         if (!pmb) {
6271                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6272                                 "2897 The mboxq allocation failed\n");
6273                 return;
6274         }
6275         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6276         if (!mp) {
6277                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6278                                 "2898 The lpfc_dmabuf allocation failed\n");
6279                 goto out_free_pmb;
6280         }
6281         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6282         if (!mp->virt) {
6283                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6284                                 "2899 The mbuf allocation failed\n");
6285                 goto out_free_dmabuf;
6286         }
6287
6288         /* Cleanup any outstanding ELS commands */
6289         lpfc_els_flush_all_cmd(phba);
6290
6291         /* Block ELS IOCBs until we have done process link event */
6292         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6293
6294         /* Update link event statistics */
6295         phba->sli.slistat.link_event++;
6296
6297         /* Create lpfc_handle_latt mailbox command from link ACQE */
6298         lpfc_read_topology(phba, pmb, mp);
6299         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6300         pmb->vport = phba->pport;
6301
6302         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6303                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6304
6305                 switch (phba->sli4_hba.link_state.status) {
6306                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6307                         phba->link_flag |= LS_MDS_LINK_DOWN;
6308                         break;
6309                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6310                         phba->link_flag |= LS_MDS_LOOPBACK;
6311                         break;
6312                 default:
6313                         break;
6314                 }
6315
6316                 /* Initialize completion status */
6317                 mb = &pmb->u.mb;
6318                 mb->mbxStatus = MBX_SUCCESS;
6319
6320                 /* Parse port fault information field */
6321                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6322
6323                 /* Parse and translate link attention fields */
6324                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6325                 la->eventTag = acqe_fc->event_tag;
6326
6327                 if (phba->sli4_hba.link_state.status ==
6328                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6329                         bf_set(lpfc_mbx_read_top_att_type, la,
6330                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6331                 } else {
6332                         bf_set(lpfc_mbx_read_top_att_type, la,
6333                                LPFC_FC_LA_TYPE_LINK_DOWN);
6334                 }
6335                 /* Invoke the mailbox command callback function */
6336                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6337
6338                 return;
6339         }
6340
6341         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6342         if (rc == MBX_NOT_FINISHED) {
6343                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6344                 goto out_free_dmabuf;
6345         }
6346         return;
6347
6348 out_free_dmabuf:
6349         kfree(mp);
6350 out_free_pmb:
6351         mempool_free(pmb, phba->mbox_mem_pool);
6352 }
6353
6354 /**
6355  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6356  * @phba: pointer to lpfc hba data structure.
6357  * @acqe_sli: pointer to the async SLI completion queue entry.
6358  *
6359  * This routine is to handle the SLI4 asynchronous SLI events.
6360  **/
6361 static void
6362 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6363 {
6364         char port_name;
6365         char message[128];
6366         uint8_t status;
6367         uint8_t evt_type;
6368         uint8_t operational = 0;
6369         struct temp_event temp_event_data;
6370         struct lpfc_acqe_misconfigured_event *misconfigured;
6371         struct lpfc_acqe_cgn_signal *cgn_signal;
6372         struct Scsi_Host  *shost;
6373         struct lpfc_vport **vports;
6374         int rc, i, cnt;
6375
6376         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6377
6378         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6379                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6380                         "x%08x x%08x x%08x\n", evt_type,
6381                         acqe_sli->event_data1, acqe_sli->event_data2,
6382                         acqe_sli->reserved, acqe_sli->trailer);
6383
6384         port_name = phba->Port[0];
6385         if (port_name == 0x00)
6386                 port_name = '?'; /* get port name is empty */
6387
6388         switch (evt_type) {
6389         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6390                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6391                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6392                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6393
6394                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6395                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6396                                 acqe_sli->event_data1, port_name);
6397
6398                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6399                 shost = lpfc_shost_from_vport(phba->pport);
6400                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6401                                           sizeof(temp_event_data),
6402                                           (char *)&temp_event_data,
6403                                           SCSI_NL_VID_TYPE_PCI
6404                                           | PCI_VENDOR_ID_EMULEX);
6405                 break;
6406         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6407                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6408                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6409                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6410
6411                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6412                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6413                                 acqe_sli->event_data1, port_name);
6414
6415                 shost = lpfc_shost_from_vport(phba->pport);
6416                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6417                                           sizeof(temp_event_data),
6418                                           (char *)&temp_event_data,
6419                                           SCSI_NL_VID_TYPE_PCI
6420                                           | PCI_VENDOR_ID_EMULEX);
6421                 break;
6422         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6423                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6424                                         &acqe_sli->event_data1;
6425
6426                 /* fetch the status for this port */
6427                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6428                 case LPFC_LINK_NUMBER_0:
6429                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6430                                         &misconfigured->theEvent);
6431                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6432                                         &misconfigured->theEvent);
6433                         break;
6434                 case LPFC_LINK_NUMBER_1:
6435                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6436                                         &misconfigured->theEvent);
6437                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6438                                         &misconfigured->theEvent);
6439                         break;
6440                 case LPFC_LINK_NUMBER_2:
6441                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6442                                         &misconfigured->theEvent);
6443                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6444                                         &misconfigured->theEvent);
6445                         break;
6446                 case LPFC_LINK_NUMBER_3:
6447                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6448                                         &misconfigured->theEvent);
6449                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6450                                         &misconfigured->theEvent);
6451                         break;
6452                 default:
6453                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6454                                         "3296 "
6455                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6456                                         "event: Invalid link %d",
6457                                         phba->sli4_hba.lnk_info.lnk_no);
6458                         return;
6459                 }
6460
6461                 /* Skip if optic state unchanged */
6462                 if (phba->sli4_hba.lnk_info.optic_state == status)
6463                         return;
6464
6465                 switch (status) {
6466                 case LPFC_SLI_EVENT_STATUS_VALID:
6467                         sprintf(message, "Physical Link is functional");
6468                         break;
6469                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6470                         sprintf(message, "Optics faulted/incorrectly "
6471                                 "installed/not installed - Reseat optics, "
6472                                 "if issue not resolved, replace.");
6473                         break;
6474                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6475                         sprintf(message,
6476                                 "Optics of two types installed - Remove one "
6477                                 "optic or install matching pair of optics.");
6478                         break;
6479                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6480                         sprintf(message, "Incompatible optics - Replace with "
6481                                 "compatible optics for card to function.");
6482                         break;
6483                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6484                         sprintf(message, "Unqualified optics - Replace with "
6485                                 "Avago optics for Warranty and Technical "
6486                                 "Support - Link is%s operational",
6487                                 (operational) ? " not" : "");
6488                         break;
6489                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6490                         sprintf(message, "Uncertified optics - Replace with "
6491                                 "Avago-certified optics to enable link "
6492                                 "operation - Link is%s operational",
6493                                 (operational) ? " not" : "");
6494                         break;
6495                 default:
6496                         /* firmware is reporting a status we don't know about */
6497                         sprintf(message, "Unknown event status x%02x", status);
6498                         break;
6499                 }
6500
6501                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6502                 rc = lpfc_sli4_read_config(phba);
6503                 if (rc) {
6504                         phba->lmt = 0;
6505                         lpfc_printf_log(phba, KERN_ERR,
6506                                         LOG_TRACE_EVENT,
6507                                         "3194 Unable to retrieve supported "
6508                                         "speeds, rc = 0x%x\n", rc);
6509                 }
6510                 rc = lpfc_sli4_refresh_params(phba);
6511                 if (rc) {
6512                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6513                                         "3174 Unable to update pls support, "
6514                                         "rc x%x\n", rc);
6515                 }
6516                 vports = lpfc_create_vport_work_array(phba);
6517                 if (vports != NULL) {
6518                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6519                                         i++) {
6520                                 shost = lpfc_shost_from_vport(vports[i]);
6521                                 lpfc_host_supported_speeds_set(shost);
6522                         }
6523                 }
6524                 lpfc_destroy_vport_work_array(phba, vports);
6525
6526                 phba->sli4_hba.lnk_info.optic_state = status;
6527                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6528                                 "3176 Port Name %c %s\n", port_name, message);
6529                 break;
6530         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6531                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6532                                 "3192 Remote DPort Test Initiated - "
6533                                 "Event Data1:x%08x Event Data2: x%08x\n",
6534                                 acqe_sli->event_data1, acqe_sli->event_data2);
6535                 break;
6536         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6537                 /* Call FW to obtain active parms */
6538                 lpfc_sli4_cgn_parm_chg_evt(phba);
6539                 break;
6540         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6541                 /* Misconfigured WWN. Reports that the SLI Port is configured
6542                  * to use FA-WWN, but the attached device doesn’t support it.
6543                  * No driver action is required.
6544                  * Event Data1 - N.A, Event Data2 - N.A
6545                  */
6546                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6547                              "2699 Misconfigured FA-WWN - Attached device does "
6548                              "not support FA-WWN\n");
6549                 break;
6550         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6551                 /* EEPROM failure. No driver action is required */
6552                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6553                              "2518 EEPROM failure - "
6554                              "Event Data1: x%08x Event Data2: x%08x\n",
6555                              acqe_sli->event_data1, acqe_sli->event_data2);
6556                 break;
6557         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6558                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6559                         break;
6560                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6561                                         &acqe_sli->event_data1;
6562                 phba->cgn_acqe_cnt++;
6563
6564                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6565                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6566                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6567
6568                 /* no threshold for CMF, even 1 signal will trigger an event */
6569
6570                 /* Alarm overrides warning, so check that first */
6571                 if (cgn_signal->alarm_cnt) {
6572                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6573                                 /* Keep track of alarm cnt for cgn_info */
6574                                 atomic_add(cgn_signal->alarm_cnt,
6575                                            &phba->cgn_fabric_alarm_cnt);
6576                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6577                                 atomic_add(cgn_signal->alarm_cnt,
6578                                            &phba->cgn_sync_alarm_cnt);
6579                         }
6580                 } else if (cnt) {
6581                         /* signal action needs to be taken */
6582                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6583                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6584                                 /* Keep track of warning cnt for cgn_info */
6585                                 atomic_add(cnt, &phba->cgn_fabric_warn_cnt);
6586                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6587                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6588                         }
6589                 }
6590                 break;
6591         default:
6592                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6593                                 "3193 Unrecognized SLI event, type: 0x%x",
6594                                 evt_type);
6595                 break;
6596         }
6597 }
6598
6599 /**
6600  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6601  * @vport: pointer to vport data structure.
6602  *
6603  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6604  * response to a CVL event.
6605  *
6606  * Return the pointer to the ndlp with the vport if successful, otherwise
6607  * return NULL.
6608  **/
6609 static struct lpfc_nodelist *
6610 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6611 {
6612         struct lpfc_nodelist *ndlp;
6613         struct Scsi_Host *shost;
6614         struct lpfc_hba *phba;
6615
6616         if (!vport)
6617                 return NULL;
6618         phba = vport->phba;
6619         if (!phba)
6620                 return NULL;
6621         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6622         if (!ndlp) {
6623                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6624                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6625                 if (!ndlp)
6626                         return NULL;
6627                 /* Set the node type */
6628                 ndlp->nlp_type |= NLP_FABRIC;
6629                 /* Put ndlp onto node list */
6630                 lpfc_enqueue_node(vport, ndlp);
6631         }
6632         if ((phba->pport->port_state < LPFC_FLOGI) &&
6633                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6634                 return NULL;
6635         /* If virtual link is not yet instantiated ignore CVL */
6636         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6637                 && (vport->port_state != LPFC_VPORT_FAILED))
6638                 return NULL;
6639         shost = lpfc_shost_from_vport(vport);
6640         if (!shost)
6641                 return NULL;
6642         lpfc_linkdown_port(vport);
6643         lpfc_cleanup_pending_mbox(vport);
6644         spin_lock_irq(shost->host_lock);
6645         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6646         spin_unlock_irq(shost->host_lock);
6647
6648         return ndlp;
6649 }
6650
6651 /**
6652  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6653  * @phba: pointer to lpfc hba data structure.
6654  *
6655  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6656  * response to a FCF dead event.
6657  **/
6658 static void
6659 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6660 {
6661         struct lpfc_vport **vports;
6662         int i;
6663
6664         vports = lpfc_create_vport_work_array(phba);
6665         if (vports)
6666                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6667                         lpfc_sli4_perform_vport_cvl(vports[i]);
6668         lpfc_destroy_vport_work_array(phba, vports);
6669 }
6670
6671 /**
6672  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6673  * @phba: pointer to lpfc hba data structure.
6674  * @acqe_fip: pointer to the async fcoe completion queue entry.
6675  *
6676  * This routine is to handle the SLI4 asynchronous fcoe event.
6677  **/
6678 static void
6679 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6680                         struct lpfc_acqe_fip *acqe_fip)
6681 {
6682         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6683         int rc;
6684         struct lpfc_vport *vport;
6685         struct lpfc_nodelist *ndlp;
6686         int active_vlink_present;
6687         struct lpfc_vport **vports;
6688         int i;
6689
6690         phba->fc_eventTag = acqe_fip->event_tag;
6691         phba->fcoe_eventtag = acqe_fip->event_tag;
6692         switch (event_type) {
6693         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6694         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6695                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6696                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6697                                         "2546 New FCF event, evt_tag:x%x, "
6698                                         "index:x%x\n",
6699                                         acqe_fip->event_tag,
6700                                         acqe_fip->index);
6701                 else
6702                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6703                                         LOG_DISCOVERY,
6704                                         "2788 FCF param modified event, "
6705                                         "evt_tag:x%x, index:x%x\n",
6706                                         acqe_fip->event_tag,
6707                                         acqe_fip->index);
6708                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6709                         /*
6710                          * During period of FCF discovery, read the FCF
6711                          * table record indexed by the event to update
6712                          * FCF roundrobin failover eligible FCF bmask.
6713                          */
6714                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6715                                         LOG_DISCOVERY,
6716                                         "2779 Read FCF (x%x) for updating "
6717                                         "roundrobin FCF failover bmask\n",
6718                                         acqe_fip->index);
6719                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6720                 }
6721
6722                 /* If the FCF discovery is in progress, do nothing. */
6723                 spin_lock_irq(&phba->hbalock);
6724                 if (phba->hba_flag & FCF_TS_INPROG) {
6725                         spin_unlock_irq(&phba->hbalock);
6726                         break;
6727                 }
6728                 /* If fast FCF failover rescan event is pending, do nothing */
6729                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6730                         spin_unlock_irq(&phba->hbalock);
6731                         break;
6732                 }
6733
6734                 /* If the FCF has been in discovered state, do nothing. */
6735                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6736                         spin_unlock_irq(&phba->hbalock);
6737                         break;
6738                 }
6739                 spin_unlock_irq(&phba->hbalock);
6740
6741                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6742                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6743                                 "2770 Start FCF table scan per async FCF "
6744                                 "event, evt_tag:x%x, index:x%x\n",
6745                                 acqe_fip->event_tag, acqe_fip->index);
6746                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6747                                                      LPFC_FCOE_FCF_GET_FIRST);
6748                 if (rc)
6749                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6750                                         "2547 Issue FCF scan read FCF mailbox "
6751                                         "command failed (x%x)\n", rc);
6752                 break;
6753
6754         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6755                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6756                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6757                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6758                                 acqe_fip->event_tag);
6759                 break;
6760
6761         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6762                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6763                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6764                                 "2549 FCF (x%x) disconnected from network, "
6765                                  "tag:x%x\n", acqe_fip->index,
6766                                  acqe_fip->event_tag);
6767                 /*
6768                  * If we are in the middle of FCF failover process, clear
6769                  * the corresponding FCF bit in the roundrobin bitmap.
6770                  */
6771                 spin_lock_irq(&phba->hbalock);
6772                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6773                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6774                         spin_unlock_irq(&phba->hbalock);
6775                         /* Update FLOGI FCF failover eligible FCF bmask */
6776                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6777                         break;
6778                 }
6779                 spin_unlock_irq(&phba->hbalock);
6780
6781                 /* If the event is not for currently used fcf do nothing */
6782                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6783                         break;
6784
6785                 /*
6786                  * Otherwise, request the port to rediscover the entire FCF
6787                  * table for a fast recovery from case that the current FCF
6788                  * is no longer valid as we are not in the middle of FCF
6789                  * failover process already.
6790                  */
6791                 spin_lock_irq(&phba->hbalock);
6792                 /* Mark the fast failover process in progress */
6793                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6794                 spin_unlock_irq(&phba->hbalock);
6795
6796                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6797                                 "2771 Start FCF fast failover process due to "
6798                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6799                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6800                 rc = lpfc_sli4_redisc_fcf_table(phba);
6801                 if (rc) {
6802                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6803                                         LOG_TRACE_EVENT,
6804                                         "2772 Issue FCF rediscover mailbox "
6805                                         "command failed, fail through to FCF "
6806                                         "dead event\n");
6807                         spin_lock_irq(&phba->hbalock);
6808                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6809                         spin_unlock_irq(&phba->hbalock);
6810                         /*
6811                          * Last resort will fail over by treating this
6812                          * as a link down to FCF registration.
6813                          */
6814                         lpfc_sli4_fcf_dead_failthrough(phba);
6815                 } else {
6816                         /* Reset FCF roundrobin bmask for new discovery */
6817                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6818                         /*
6819                          * Handling fast FCF failover to a DEAD FCF event is
6820                          * considered equalivant to receiving CVL to all vports.
6821                          */
6822                         lpfc_sli4_perform_all_vport_cvl(phba);
6823                 }
6824                 break;
6825         case LPFC_FIP_EVENT_TYPE_CVL:
6826                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6827                 lpfc_printf_log(phba, KERN_ERR,
6828                                 LOG_TRACE_EVENT,
6829                         "2718 Clear Virtual Link Received for VPI 0x%x"
6830                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6831
6832                 vport = lpfc_find_vport_by_vpid(phba,
6833                                                 acqe_fip->index);
6834                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6835                 if (!ndlp)
6836                         break;
6837                 active_vlink_present = 0;
6838
6839                 vports = lpfc_create_vport_work_array(phba);
6840                 if (vports) {
6841                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6842                                         i++) {
6843                                 if ((!(vports[i]->fc_flag &
6844                                         FC_VPORT_CVL_RCVD)) &&
6845                                         (vports[i]->port_state > LPFC_FDISC)) {
6846                                         active_vlink_present = 1;
6847                                         break;
6848                                 }
6849                         }
6850                         lpfc_destroy_vport_work_array(phba, vports);
6851                 }
6852
6853                 /*
6854                  * Don't re-instantiate if vport is marked for deletion.
6855                  * If we are here first then vport_delete is going to wait
6856                  * for discovery to complete.
6857                  */
6858                 if (!(vport->load_flag & FC_UNLOADING) &&
6859                                         active_vlink_present) {
6860                         /*
6861                          * If there are other active VLinks present,
6862                          * re-instantiate the Vlink using FDISC.
6863                          */
6864                         mod_timer(&ndlp->nlp_delayfunc,
6865                                   jiffies + msecs_to_jiffies(1000));
6866                         spin_lock_irq(&ndlp->lock);
6867                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6868                         spin_unlock_irq(&ndlp->lock);
6869                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6870                         vport->port_state = LPFC_FDISC;
6871                 } else {
6872                         /*
6873                          * Otherwise, we request port to rediscover
6874                          * the entire FCF table for a fast recovery
6875                          * from possible case that the current FCF
6876                          * is no longer valid if we are not already
6877                          * in the FCF failover process.
6878                          */
6879                         spin_lock_irq(&phba->hbalock);
6880                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6881                                 spin_unlock_irq(&phba->hbalock);
6882                                 break;
6883                         }
6884                         /* Mark the fast failover process in progress */
6885                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6886                         spin_unlock_irq(&phba->hbalock);
6887                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6888                                         LOG_DISCOVERY,
6889                                         "2773 Start FCF failover per CVL, "
6890                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6891                         rc = lpfc_sli4_redisc_fcf_table(phba);
6892                         if (rc) {
6893                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6894                                                 LOG_TRACE_EVENT,
6895                                                 "2774 Issue FCF rediscover "
6896                                                 "mailbox command failed, "
6897                                                 "through to CVL event\n");
6898                                 spin_lock_irq(&phba->hbalock);
6899                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6900                                 spin_unlock_irq(&phba->hbalock);
6901                                 /*
6902                                  * Last resort will be re-try on the
6903                                  * the current registered FCF entry.
6904                                  */
6905                                 lpfc_retry_pport_discovery(phba);
6906                         } else
6907                                 /*
6908                                  * Reset FCF roundrobin bmask for new
6909                                  * discovery.
6910                                  */
6911                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6912                 }
6913                 break;
6914         default:
6915                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6916                                 "0288 Unknown FCoE event type 0x%x event tag "
6917                                 "0x%x\n", event_type, acqe_fip->event_tag);
6918                 break;
6919         }
6920 }
6921
6922 /**
6923  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6924  * @phba: pointer to lpfc hba data structure.
6925  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6926  *
6927  * This routine is to handle the SLI4 asynchronous dcbx event.
6928  **/
6929 static void
6930 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6931                          struct lpfc_acqe_dcbx *acqe_dcbx)
6932 {
6933         phba->fc_eventTag = acqe_dcbx->event_tag;
6934         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6935                         "0290 The SLI4 DCBX asynchronous event is not "
6936                         "handled yet\n");
6937 }
6938
6939 /**
6940  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6941  * @phba: pointer to lpfc hba data structure.
6942  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6943  *
6944  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6945  * is an asynchronous notified of a logical link speed change.  The Port
6946  * reports the logical link speed in units of 10Mbps.
6947  **/
6948 static void
6949 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6950                          struct lpfc_acqe_grp5 *acqe_grp5)
6951 {
6952         uint16_t prev_ll_spd;
6953
6954         phba->fc_eventTag = acqe_grp5->event_tag;
6955         phba->fcoe_eventtag = acqe_grp5->event_tag;
6956         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6957         phba->sli4_hba.link_state.logical_speed =
6958                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6959         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6960                         "2789 GRP5 Async Event: Updating logical link speed "
6961                         "from %dMbps to %dMbps\n", prev_ll_spd,
6962                         phba->sli4_hba.link_state.logical_speed);
6963 }
6964
6965 /**
6966  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6967  * @phba: pointer to lpfc hba data structure.
6968  *
6969  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6970  * is an asynchronous notification of a request to reset CM stats.
6971  **/
6972 static void
6973 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6974 {
6975         if (!phba->cgn_i)
6976                 return;
6977         lpfc_init_congestion_stat(phba);
6978 }
6979
6980 /**
6981  * lpfc_cgn_params_val - Validate FW congestion parameters.
6982  * @phba: pointer to lpfc hba data structure.
6983  * @p_cfg_param: pointer to FW provided congestion parameters.
6984  *
6985  * This routine validates the congestion parameters passed
6986  * by the FW to the driver via an ACQE event.
6987  **/
6988 static void
6989 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
6990 {
6991         spin_lock_irq(&phba->hbalock);
6992
6993         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
6994                              LPFC_CFG_MONITOR)) {
6995                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
6996                                 "6225 CMF mode param out of range: %d\n",
6997                                  p_cfg_param->cgn_param_mode);
6998                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
6999         }
7000
7001         spin_unlock_irq(&phba->hbalock);
7002 }
7003
7004 /**
7005  * lpfc_cgn_params_parse - Process a FW cong parm change event
7006  * @phba: pointer to lpfc hba data structure.
7007  * @p_cgn_param: pointer to a data buffer with the FW cong params.
7008  * @len: the size of pdata in bytes.
7009  *
7010  * This routine validates the congestion management buffer signature
7011  * from the FW, validates the contents and makes corrections for
7012  * valid, in-range values.  If the signature magic is correct and
7013  * after parameter validation, the contents are copied to the driver's
7014  * @phba structure. If the magic is incorrect, an error message is
7015  * logged.
7016  **/
7017 static void
7018 lpfc_cgn_params_parse(struct lpfc_hba *phba,
7019                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
7020 {
7021         struct lpfc_cgn_info *cp;
7022         uint32_t crc, oldmode;
7023
7024         /* Make sure the FW has encoded the correct magic number to
7025          * validate the congestion parameter in FW memory.
7026          */
7027         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
7028                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7029                                 "4668 FW cgn parm buffer data: "
7030                                 "magic 0x%x version %d mode %d "
7031                                 "level0 %d level1 %d "
7032                                 "level2 %d byte13 %d "
7033                                 "byte14 %d byte15 %d "
7034                                 "byte11 %d byte12 %d activeMode %d\n",
7035                                 p_cgn_param->cgn_param_magic,
7036                                 p_cgn_param->cgn_param_version,
7037                                 p_cgn_param->cgn_param_mode,
7038                                 p_cgn_param->cgn_param_level0,
7039                                 p_cgn_param->cgn_param_level1,
7040                                 p_cgn_param->cgn_param_level2,
7041                                 p_cgn_param->byte13,
7042                                 p_cgn_param->byte14,
7043                                 p_cgn_param->byte15,
7044                                 p_cgn_param->byte11,
7045                                 p_cgn_param->byte12,
7046                                 phba->cmf_active_mode);
7047
7048                 oldmode = phba->cmf_active_mode;
7049
7050                 /* Any parameters out of range are corrected to defaults
7051                  * by this routine.  No need to fail.
7052                  */
7053                 lpfc_cgn_params_val(phba, p_cgn_param);
7054
7055                 /* Parameters are verified, move them into driver storage */
7056                 spin_lock_irq(&phba->hbalock);
7057                 memcpy(&phba->cgn_p, p_cgn_param,
7058                        sizeof(struct lpfc_cgn_param));
7059
7060                 /* Update parameters in congestion info buffer now */
7061                 if (phba->cgn_i) {
7062                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
7063                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
7064                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
7065                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
7066                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
7067                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
7068                                                   LPFC_CGN_CRC32_SEED);
7069                         cp->cgn_info_crc = cpu_to_le32(crc);
7070                 }
7071                 spin_unlock_irq(&phba->hbalock);
7072
7073                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
7074
7075                 switch (oldmode) {
7076                 case LPFC_CFG_OFF:
7077                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
7078                                 /* Turning CMF on */
7079                                 lpfc_cmf_start(phba);
7080
7081                                 if (phba->link_state >= LPFC_LINK_UP) {
7082                                         phba->cgn_reg_fpin =
7083                                                 phba->cgn_init_reg_fpin;
7084                                         phba->cgn_reg_signal =
7085                                                 phba->cgn_init_reg_signal;
7086                                         lpfc_issue_els_edc(phba->pport, 0);
7087                                 }
7088                         }
7089                         break;
7090                 case LPFC_CFG_MANAGED:
7091                         switch (phba->cgn_p.cgn_param_mode) {
7092                         case LPFC_CFG_OFF:
7093                                 /* Turning CMF off */
7094                                 lpfc_cmf_stop(phba);
7095                                 if (phba->link_state >= LPFC_LINK_UP)
7096                                         lpfc_issue_els_edc(phba->pport, 0);
7097                                 break;
7098                         case LPFC_CFG_MONITOR:
7099                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7100                                                 "4661 Switch from MANAGED to "
7101                                                 "`MONITOR mode\n");
7102                                 phba->cmf_max_bytes_per_interval =
7103                                         phba->cmf_link_byte_count;
7104
7105                                 /* Resume blocked IO - unblock on workqueue */
7106                                 queue_work(phba->wq,
7107                                            &phba->unblock_request_work);
7108                                 break;
7109                         }
7110                         break;
7111                 case LPFC_CFG_MONITOR:
7112                         switch (phba->cgn_p.cgn_param_mode) {
7113                         case LPFC_CFG_OFF:
7114                                 /* Turning CMF off */
7115                                 lpfc_cmf_stop(phba);
7116                                 if (phba->link_state >= LPFC_LINK_UP)
7117                                         lpfc_issue_els_edc(phba->pport, 0);
7118                                 break;
7119                         case LPFC_CFG_MANAGED:
7120                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7121                                                 "4662 Switch from MONITOR to "
7122                                                 "MANAGED mode\n");
7123                                 lpfc_cmf_signal_init(phba);
7124                                 break;
7125                         }
7126                         break;
7127                 }
7128         } else {
7129                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7130                                 "4669 FW cgn parm buf wrong magic 0x%x "
7131                                 "version %d\n", p_cgn_param->cgn_param_magic,
7132                                 p_cgn_param->cgn_param_version);
7133         }
7134 }
7135
7136 /**
7137  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7138  * @phba: pointer to lpfc hba data structure.
7139  *
7140  * This routine issues a read_object mailbox command to
7141  * get the congestion management parameters from the FW
7142  * parses it and updates the driver maintained values.
7143  *
7144  * Returns
7145  *  0     if the object was empty
7146  *  -Eval if an error was encountered
7147  *  Count if bytes were read from object
7148  **/
7149 int
7150 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7151 {
7152         int ret = 0;
7153         struct lpfc_cgn_param *p_cgn_param = NULL;
7154         u32 *pdata = NULL;
7155         u32 len = 0;
7156
7157         /* Find out if the FW has a new set of congestion parameters. */
7158         len = sizeof(struct lpfc_cgn_param);
7159         pdata = kzalloc(len, GFP_KERNEL);
7160         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7161                                pdata, len);
7162
7163         /* 0 means no data.  A negative means error.  A positive means
7164          * bytes were copied.
7165          */
7166         if (!ret) {
7167                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7168                                 "4670 CGN RD OBJ returns no data\n");
7169                 goto rd_obj_err;
7170         } else if (ret < 0) {
7171                 /* Some error.  Just exit and return it to the caller.*/
7172                 goto rd_obj_err;
7173         }
7174
7175         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7176                         "6234 READ CGN PARAMS Successful %d\n", len);
7177
7178         /* Parse data pointer over len and update the phba congestion
7179          * parameters with values passed back.  The receive rate values
7180          * may have been altered in FW, but take no action here.
7181          */
7182         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7183         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7184
7185  rd_obj_err:
7186         kfree(pdata);
7187         return ret;
7188 }
7189
7190 /**
7191  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7192  * @phba: pointer to lpfc hba data structure.
7193  *
7194  * The FW generated Async ACQE SLI event calls this routine when
7195  * the event type is an SLI Internal Port Event and the Event Code
7196  * indicates a change to the FW maintained congestion parameters.
7197  *
7198  * This routine executes a Read_Object mailbox call to obtain the
7199  * current congestion parameters maintained in FW and corrects
7200  * the driver's active congestion parameters.
7201  *
7202  * The acqe event is not passed because there is no further data
7203  * required.
7204  *
7205  * Returns nonzero error if event processing encountered an error.
7206  * Zero otherwise for success.
7207  **/
7208 static int
7209 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7210 {
7211         int ret = 0;
7212
7213         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7214                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7215                                 "4664 Cgn Evt when E2E off. Drop event\n");
7216                 return -EACCES;
7217         }
7218
7219         /* If the event is claiming an empty object, it's ok.  A write
7220          * could have cleared it.  Only error is a negative return
7221          * status.
7222          */
7223         ret = lpfc_sli4_cgn_params_read(phba);
7224         if (ret < 0) {
7225                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7226                                 "4667 Error reading Cgn Params (%d)\n",
7227                                 ret);
7228         } else if (!ret) {
7229                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7230                                 "4673 CGN Event empty object.\n");
7231         }
7232         return ret;
7233 }
7234
7235 /**
7236  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7237  * @phba: pointer to lpfc hba data structure.
7238  *
7239  * This routine is invoked by the worker thread to process all the pending
7240  * SLI4 asynchronous events.
7241  **/
7242 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7243 {
7244         struct lpfc_cq_event *cq_event;
7245         unsigned long iflags;
7246
7247         /* First, declare the async event has been handled */
7248         spin_lock_irqsave(&phba->hbalock, iflags);
7249         phba->hba_flag &= ~ASYNC_EVENT;
7250         spin_unlock_irqrestore(&phba->hbalock, iflags);
7251
7252         /* Now, handle all the async events */
7253         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7254         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7255                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7256                                  cq_event, struct lpfc_cq_event, list);
7257                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7258                                        iflags);
7259
7260                 /* Process the asynchronous event */
7261                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7262                 case LPFC_TRAILER_CODE_LINK:
7263                         lpfc_sli4_async_link_evt(phba,
7264                                                  &cq_event->cqe.acqe_link);
7265                         break;
7266                 case LPFC_TRAILER_CODE_FCOE:
7267                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7268                         break;
7269                 case LPFC_TRAILER_CODE_DCBX:
7270                         lpfc_sli4_async_dcbx_evt(phba,
7271                                                  &cq_event->cqe.acqe_dcbx);
7272                         break;
7273                 case LPFC_TRAILER_CODE_GRP5:
7274                         lpfc_sli4_async_grp5_evt(phba,
7275                                                  &cq_event->cqe.acqe_grp5);
7276                         break;
7277                 case LPFC_TRAILER_CODE_FC:
7278                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7279                         break;
7280                 case LPFC_TRAILER_CODE_SLI:
7281                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7282                         break;
7283                 case LPFC_TRAILER_CODE_CMSTAT:
7284                         lpfc_sli4_async_cmstat_evt(phba);
7285                         break;
7286                 default:
7287                         lpfc_printf_log(phba, KERN_ERR,
7288                                         LOG_TRACE_EVENT,
7289                                         "1804 Invalid asynchronous event code: "
7290                                         "x%x\n", bf_get(lpfc_trailer_code,
7291                                         &cq_event->cqe.mcqe_cmpl));
7292                         break;
7293                 }
7294
7295                 /* Free the completion event processed to the free pool */
7296                 lpfc_sli4_cq_event_release(phba, cq_event);
7297                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7298         }
7299         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7300 }
7301
7302 /**
7303  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7304  * @phba: pointer to lpfc hba data structure.
7305  *
7306  * This routine is invoked by the worker thread to process FCF table
7307  * rediscovery pending completion event.
7308  **/
7309 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7310 {
7311         int rc;
7312
7313         spin_lock_irq(&phba->hbalock);
7314         /* Clear FCF rediscovery timeout event */
7315         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7316         /* Clear driver fast failover FCF record flag */
7317         phba->fcf.failover_rec.flag = 0;
7318         /* Set state for FCF fast failover */
7319         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7320         spin_unlock_irq(&phba->hbalock);
7321
7322         /* Scan FCF table from the first entry to re-discover SAN */
7323         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7324                         "2777 Start post-quiescent FCF table scan\n");
7325         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7326         if (rc)
7327                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7328                                 "2747 Issue FCF scan read FCF mailbox "
7329                                 "command failed 0x%x\n", rc);
7330 }
7331
7332 /**
7333  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7334  * @phba: pointer to lpfc hba data structure.
7335  * @dev_grp: The HBA PCI-Device group number.
7336  *
7337  * This routine is invoked to set up the per HBA PCI-Device group function
7338  * API jump table entries.
7339  *
7340  * Return: 0 if success, otherwise -ENODEV
7341  **/
7342 int
7343 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7344 {
7345         int rc;
7346
7347         /* Set up lpfc PCI-device group */
7348         phba->pci_dev_grp = dev_grp;
7349
7350         /* The LPFC_PCI_DEV_OC uses SLI4 */
7351         if (dev_grp == LPFC_PCI_DEV_OC)
7352                 phba->sli_rev = LPFC_SLI_REV4;
7353
7354         /* Set up device INIT API function jump table */
7355         rc = lpfc_init_api_table_setup(phba, dev_grp);
7356         if (rc)
7357                 return -ENODEV;
7358         /* Set up SCSI API function jump table */
7359         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7360         if (rc)
7361                 return -ENODEV;
7362         /* Set up SLI API function jump table */
7363         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7364         if (rc)
7365                 return -ENODEV;
7366         /* Set up MBOX API function jump table */
7367         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7368         if (rc)
7369                 return -ENODEV;
7370
7371         return 0;
7372 }
7373
7374 /**
7375  * lpfc_log_intr_mode - Log the active interrupt mode
7376  * @phba: pointer to lpfc hba data structure.
7377  * @intr_mode: active interrupt mode adopted.
7378  *
7379  * This routine it invoked to log the currently used active interrupt mode
7380  * to the device.
7381  **/
7382 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7383 {
7384         switch (intr_mode) {
7385         case 0:
7386                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7387                                 "0470 Enable INTx interrupt mode.\n");
7388                 break;
7389         case 1:
7390                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7391                                 "0481 Enabled MSI interrupt mode.\n");
7392                 break;
7393         case 2:
7394                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7395                                 "0480 Enabled MSI-X interrupt mode.\n");
7396                 break;
7397         default:
7398                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7399                                 "0482 Illegal interrupt mode.\n");
7400                 break;
7401         }
7402         return;
7403 }
7404
7405 /**
7406  * lpfc_enable_pci_dev - Enable a generic PCI device.
7407  * @phba: pointer to lpfc hba data structure.
7408  *
7409  * This routine is invoked to enable the PCI device that is common to all
7410  * PCI devices.
7411  *
7412  * Return codes
7413  *      0 - successful
7414  *      other values - error
7415  **/
7416 static int
7417 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7418 {
7419         struct pci_dev *pdev;
7420
7421         /* Obtain PCI device reference */
7422         if (!phba->pcidev)
7423                 goto out_error;
7424         else
7425                 pdev = phba->pcidev;
7426         /* Enable PCI device */
7427         if (pci_enable_device_mem(pdev))
7428                 goto out_error;
7429         /* Request PCI resource for the device */
7430         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7431                 goto out_disable_device;
7432         /* Set up device as PCI master and save state for EEH */
7433         pci_set_master(pdev);
7434         pci_try_set_mwi(pdev);
7435         pci_save_state(pdev);
7436
7437         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7438         if (pci_is_pcie(pdev))
7439                 pdev->needs_freset = 1;
7440
7441         return 0;
7442
7443 out_disable_device:
7444         pci_disable_device(pdev);
7445 out_error:
7446         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7447                         "1401 Failed to enable pci device\n");
7448         return -ENODEV;
7449 }
7450
7451 /**
7452  * lpfc_disable_pci_dev - Disable a generic PCI device.
7453  * @phba: pointer to lpfc hba data structure.
7454  *
7455  * This routine is invoked to disable the PCI device that is common to all
7456  * PCI devices.
7457  **/
7458 static void
7459 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7460 {
7461         struct pci_dev *pdev;
7462
7463         /* Obtain PCI device reference */
7464         if (!phba->pcidev)
7465                 return;
7466         else
7467                 pdev = phba->pcidev;
7468         /* Release PCI resource and disable PCI device */
7469         pci_release_mem_regions(pdev);
7470         pci_disable_device(pdev);
7471
7472         return;
7473 }
7474
7475 /**
7476  * lpfc_reset_hba - Reset a hba
7477  * @phba: pointer to lpfc hba data structure.
7478  *
7479  * This routine is invoked to reset a hba device. It brings the HBA
7480  * offline, performs a board restart, and then brings the board back
7481  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7482  * on outstanding mailbox commands.
7483  **/
7484 void
7485 lpfc_reset_hba(struct lpfc_hba *phba)
7486 {
7487         /* If resets are disabled then set error state and return. */
7488         if (!phba->cfg_enable_hba_reset) {
7489                 phba->link_state = LPFC_HBA_ERROR;
7490                 return;
7491         }
7492
7493         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7494         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7495                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7496         } else {
7497                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7498                 lpfc_sli_flush_io_rings(phba);
7499         }
7500         lpfc_offline(phba);
7501         lpfc_sli_brdrestart(phba);
7502         lpfc_online(phba);
7503         lpfc_unblock_mgmt_io(phba);
7504 }
7505
7506 /**
7507  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7508  * @phba: pointer to lpfc hba data structure.
7509  *
7510  * This function enables the PCI SR-IOV virtual functions to a physical
7511  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7512  * enable the number of virtual functions to the physical function. As
7513  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7514  * API call does not considered as an error condition for most of the device.
7515  **/
7516 uint16_t
7517 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7518 {
7519         struct pci_dev *pdev = phba->pcidev;
7520         uint16_t nr_virtfn;
7521         int pos;
7522
7523         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7524         if (pos == 0)
7525                 return 0;
7526
7527         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7528         return nr_virtfn;
7529 }
7530
7531 /**
7532  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7533  * @phba: pointer to lpfc hba data structure.
7534  * @nr_vfn: number of virtual functions to be enabled.
7535  *
7536  * This function enables the PCI SR-IOV virtual functions to a physical
7537  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7538  * enable the number of virtual functions to the physical function. As
7539  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7540  * API call does not considered as an error condition for most of the device.
7541  **/
7542 int
7543 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7544 {
7545         struct pci_dev *pdev = phba->pcidev;
7546         uint16_t max_nr_vfn;
7547         int rc;
7548
7549         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7550         if (nr_vfn > max_nr_vfn) {
7551                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7552                                 "3057 Requested vfs (%d) greater than "
7553                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7554                 return -EINVAL;
7555         }
7556
7557         rc = pci_enable_sriov(pdev, nr_vfn);
7558         if (rc) {
7559                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7560                                 "2806 Failed to enable sriov on this device "
7561                                 "with vfn number nr_vf:%d, rc:%d\n",
7562                                 nr_vfn, rc);
7563         } else
7564                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7565                                 "2807 Successful enable sriov on this device "
7566                                 "with vfn number nr_vf:%d\n", nr_vfn);
7567         return rc;
7568 }
7569
7570 static void
7571 lpfc_unblock_requests_work(struct work_struct *work)
7572 {
7573         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7574                                              unblock_request_work);
7575
7576         lpfc_unblock_requests(phba);
7577 }
7578
7579 /**
7580  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7581  * @phba: pointer to lpfc hba data structure.
7582  *
7583  * This routine is invoked to set up the driver internal resources before the
7584  * device specific resource setup to support the HBA device it attached to.
7585  *
7586  * Return codes
7587  *      0 - successful
7588  *      other values - error
7589  **/
7590 static int
7591 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7592 {
7593         struct lpfc_sli *psli = &phba->sli;
7594
7595         /*
7596          * Driver resources common to all SLI revisions
7597          */
7598         atomic_set(&phba->fast_event_count, 0);
7599         atomic_set(&phba->dbg_log_idx, 0);
7600         atomic_set(&phba->dbg_log_cnt, 0);
7601         atomic_set(&phba->dbg_log_dmping, 0);
7602         spin_lock_init(&phba->hbalock);
7603
7604         /* Initialize port_list spinlock */
7605         spin_lock_init(&phba->port_list_lock);
7606         INIT_LIST_HEAD(&phba->port_list);
7607
7608         INIT_LIST_HEAD(&phba->work_list);
7609         init_waitqueue_head(&phba->wait_4_mlo_m_q);
7610
7611         /* Initialize the wait queue head for the kernel thread */
7612         init_waitqueue_head(&phba->work_waitq);
7613
7614         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7615                         "1403 Protocols supported %s %s %s\n",
7616                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7617                                 "SCSI" : " "),
7618                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7619                                 "NVME" : " "),
7620                         (phba->nvmet_support ? "NVMET" : " "));
7621
7622         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7623         spin_lock_init(&phba->scsi_buf_list_get_lock);
7624         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7625         spin_lock_init(&phba->scsi_buf_list_put_lock);
7626         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7627
7628         /* Initialize the fabric iocb list */
7629         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7630
7631         /* Initialize list to save ELS buffers */
7632         INIT_LIST_HEAD(&phba->elsbuf);
7633
7634         /* Initialize FCF connection rec list */
7635         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7636
7637         /* Initialize OAS configuration list */
7638         spin_lock_init(&phba->devicelock);
7639         INIT_LIST_HEAD(&phba->luns);
7640
7641         /* MBOX heartbeat timer */
7642         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7643         /* Fabric block timer */
7644         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7645         /* EA polling mode timer */
7646         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7647         /* Heartbeat timer */
7648         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7649
7650         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7651
7652         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7653                           lpfc_idle_stat_delay_work);
7654         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7655         return 0;
7656 }
7657
7658 /**
7659  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7660  * @phba: pointer to lpfc hba data structure.
7661  *
7662  * This routine is invoked to set up the driver internal resources specific to
7663  * support the SLI-3 HBA device it attached to.
7664  *
7665  * Return codes
7666  * 0 - successful
7667  * other values - error
7668  **/
7669 static int
7670 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7671 {
7672         int rc, entry_sz;
7673
7674         /*
7675          * Initialize timers used by driver
7676          */
7677
7678         /* FCP polling mode timer */
7679         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7680
7681         /* Host attention work mask setup */
7682         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7683         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7684
7685         /* Get all the module params for configuring this host */
7686         lpfc_get_cfgparam(phba);
7687         /* Set up phase-1 common device driver resources */
7688
7689         rc = lpfc_setup_driver_resource_phase1(phba);
7690         if (rc)
7691                 return -ENODEV;
7692
7693         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7694                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7695                 /* check for menlo minimum sg count */
7696                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7697                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7698         }
7699
7700         if (!phba->sli.sli3_ring)
7701                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7702                                               sizeof(struct lpfc_sli_ring),
7703                                               GFP_KERNEL);
7704         if (!phba->sli.sli3_ring)
7705                 return -ENOMEM;
7706
7707         /*
7708          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7709          * used to create the sg_dma_buf_pool must be dynamically calculated.
7710          */
7711
7712         if (phba->sli_rev == LPFC_SLI_REV4)
7713                 entry_sz = sizeof(struct sli4_sge);
7714         else
7715                 entry_sz = sizeof(struct ulp_bde64);
7716
7717         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7718         if (phba->cfg_enable_bg) {
7719                 /*
7720                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7721                  * the FCP rsp, and a BDE for each. Sice we have no control
7722                  * over how many protection data segments the SCSI Layer
7723                  * will hand us (ie: there could be one for every block
7724                  * in the IO), we just allocate enough BDEs to accomidate
7725                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7726                  * minimize the risk of running out.
7727                  */
7728                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7729                         sizeof(struct fcp_rsp) +
7730                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7731
7732                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7733                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7734
7735                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7736                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7737         } else {
7738                 /*
7739                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7740                  * the FCP rsp, a BDE for each, and a BDE for up to
7741                  * cfg_sg_seg_cnt data segments.
7742                  */
7743                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7744                         sizeof(struct fcp_rsp) +
7745                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7746
7747                 /* Total BDEs in BPL for scsi_sg_list */
7748                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7749         }
7750
7751         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7752                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7753                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7754                         phba->cfg_total_seg_cnt);
7755
7756         phba->max_vpi = LPFC_MAX_VPI;
7757         /* This will be set to correct value after config_port mbox */
7758         phba->max_vports = 0;
7759
7760         /*
7761          * Initialize the SLI Layer to run with lpfc HBAs.
7762          */
7763         lpfc_sli_setup(phba);
7764         lpfc_sli_queue_init(phba);
7765
7766         /* Allocate device driver memory */
7767         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7768                 return -ENOMEM;
7769
7770         phba->lpfc_sg_dma_buf_pool =
7771                 dma_pool_create("lpfc_sg_dma_buf_pool",
7772                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7773                                 BPL_ALIGN_SZ, 0);
7774
7775         if (!phba->lpfc_sg_dma_buf_pool)
7776                 goto fail_free_mem;
7777
7778         phba->lpfc_cmd_rsp_buf_pool =
7779                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7780                                         &phba->pcidev->dev,
7781                                         sizeof(struct fcp_cmnd) +
7782                                         sizeof(struct fcp_rsp),
7783                                         BPL_ALIGN_SZ, 0);
7784
7785         if (!phba->lpfc_cmd_rsp_buf_pool)
7786                 goto fail_free_dma_buf_pool;
7787
7788         /*
7789          * Enable sr-iov virtual functions if supported and configured
7790          * through the module parameter.
7791          */
7792         if (phba->cfg_sriov_nr_virtfn > 0) {
7793                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7794                                                  phba->cfg_sriov_nr_virtfn);
7795                 if (rc) {
7796                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7797                                         "2808 Requested number of SR-IOV "
7798                                         "virtual functions (%d) is not "
7799                                         "supported\n",
7800                                         phba->cfg_sriov_nr_virtfn);
7801                         phba->cfg_sriov_nr_virtfn = 0;
7802                 }
7803         }
7804
7805         return 0;
7806
7807 fail_free_dma_buf_pool:
7808         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7809         phba->lpfc_sg_dma_buf_pool = NULL;
7810 fail_free_mem:
7811         lpfc_mem_free(phba);
7812         return -ENOMEM;
7813 }
7814
7815 /**
7816  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7817  * @phba: pointer to lpfc hba data structure.
7818  *
7819  * This routine is invoked to unset the driver internal resources set up
7820  * specific for supporting the SLI-3 HBA device it attached to.
7821  **/
7822 static void
7823 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7824 {
7825         /* Free device driver memory allocated */
7826         lpfc_mem_free_all(phba);
7827
7828         return;
7829 }
7830
7831 /**
7832  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7833  * @phba: pointer to lpfc hba data structure.
7834  *
7835  * This routine is invoked to set up the driver internal resources specific to
7836  * support the SLI-4 HBA device it attached to.
7837  *
7838  * Return codes
7839  *      0 - successful
7840  *      other values - error
7841  **/
7842 static int
7843 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7844 {
7845         LPFC_MBOXQ_t *mboxq;
7846         MAILBOX_t *mb;
7847         int rc, i, max_buf_size;
7848         int longs;
7849         int extra;
7850         uint64_t wwn;
7851         u32 if_type;
7852         u32 if_fam;
7853
7854         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7855         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7856         phba->sli4_hba.curr_disp_cpu = 0;
7857
7858         /* Get all the module params for configuring this host */
7859         lpfc_get_cfgparam(phba);
7860
7861         /* Set up phase-1 common device driver resources */
7862         rc = lpfc_setup_driver_resource_phase1(phba);
7863         if (rc)
7864                 return -ENODEV;
7865
7866         /* Before proceed, wait for POST done and device ready */
7867         rc = lpfc_sli4_post_status_check(phba);
7868         if (rc)
7869                 return -ENODEV;
7870
7871         /* Allocate all driver workqueues here */
7872
7873         /* The lpfc_wq workqueue for deferred irq use */
7874         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7875
7876         /*
7877          * Initialize timers used by driver
7878          */
7879
7880         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7881
7882         /* FCF rediscover timer */
7883         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7884
7885         /* CMF congestion timer */
7886         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7887         phba->cmf_timer.function = lpfc_cmf_timer;
7888
7889         /*
7890          * Control structure for handling external multi-buffer mailbox
7891          * command pass-through.
7892          */
7893         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7894                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7895         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7896
7897         phba->max_vpi = LPFC_MAX_VPI;
7898
7899         /* This will be set to correct value after the read_config mbox */
7900         phba->max_vports = 0;
7901
7902         /* Program the default value of vlan_id and fc_map */
7903         phba->valid_vlan = 0;
7904         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7905         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7906         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7907
7908         /*
7909          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7910          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7911          * The WQ create will allocate the ring.
7912          */
7913
7914         /* Initialize buffer queue management fields */
7915         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7916         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7917         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7918
7919         /* for VMID idle timeout if VMID is enabled */
7920         if (lpfc_is_vmid_enabled(phba))
7921                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7922
7923         /*
7924          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7925          */
7926         /* Initialize the Abort buffer list used by driver */
7927         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7928         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7929
7930         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7931                 /* Initialize the Abort nvme buffer list used by driver */
7932                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7933                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7934                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7935                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7936                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7937         }
7938
7939         /* This abort list used by worker thread */
7940         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7941         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7942         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7943         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7944
7945         /*
7946          * Initialize driver internal slow-path work queues
7947          */
7948
7949         /* Driver internel slow-path CQ Event pool */
7950         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7951         /* Response IOCB work queue list */
7952         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7953         /* Asynchronous event CQ Event work queue list */
7954         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7955         /* Slow-path XRI aborted CQ Event work queue list */
7956         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7957         /* Receive queue CQ Event work queue list */
7958         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7959
7960         /* Initialize extent block lists. */
7961         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7962         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7963         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7964         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7965
7966         /* Initialize mboxq lists. If the early init routines fail
7967          * these lists need to be correctly initialized.
7968          */
7969         INIT_LIST_HEAD(&phba->sli.mboxq);
7970         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7971
7972         /* initialize optic_state to 0xFF */
7973         phba->sli4_hba.lnk_info.optic_state = 0xff;
7974
7975         /* Allocate device driver memory */
7976         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7977         if (rc)
7978                 return -ENOMEM;
7979
7980         /* IF Type 2 ports get initialized now. */
7981         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7982             LPFC_SLI_INTF_IF_TYPE_2) {
7983                 rc = lpfc_pci_function_reset(phba);
7984                 if (unlikely(rc)) {
7985                         rc = -ENODEV;
7986                         goto out_free_mem;
7987                 }
7988                 phba->temp_sensor_support = 1;
7989         }
7990
7991         /* Create the bootstrap mailbox command */
7992         rc = lpfc_create_bootstrap_mbox(phba);
7993         if (unlikely(rc))
7994                 goto out_free_mem;
7995
7996         /* Set up the host's endian order with the device. */
7997         rc = lpfc_setup_endian_order(phba);
7998         if (unlikely(rc))
7999                 goto out_free_bsmbx;
8000
8001         /* Set up the hba's configuration parameters. */
8002         rc = lpfc_sli4_read_config(phba);
8003         if (unlikely(rc))
8004                 goto out_free_bsmbx;
8005         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
8006         if (unlikely(rc))
8007                 goto out_free_bsmbx;
8008
8009         /* IF Type 0 ports get initialized now. */
8010         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
8011             LPFC_SLI_INTF_IF_TYPE_0) {
8012                 rc = lpfc_pci_function_reset(phba);
8013                 if (unlikely(rc))
8014                         goto out_free_bsmbx;
8015         }
8016
8017         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
8018                                                        GFP_KERNEL);
8019         if (!mboxq) {
8020                 rc = -ENOMEM;
8021                 goto out_free_bsmbx;
8022         }
8023
8024         /* Check for NVMET being configured */
8025         phba->nvmet_support = 0;
8026         if (lpfc_enable_nvmet_cnt) {
8027
8028                 /* First get WWN of HBA instance */
8029                 lpfc_read_nv(phba, mboxq);
8030                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8031                 if (rc != MBX_SUCCESS) {
8032                         lpfc_printf_log(phba, KERN_ERR,
8033                                         LOG_TRACE_EVENT,
8034                                         "6016 Mailbox failed , mbxCmd x%x "
8035                                         "READ_NV, mbxStatus x%x\n",
8036                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
8037                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
8038                         mempool_free(mboxq, phba->mbox_mem_pool);
8039                         rc = -EIO;
8040                         goto out_free_bsmbx;
8041                 }
8042                 mb = &mboxq->u.mb;
8043                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
8044                        sizeof(uint64_t));
8045                 wwn = cpu_to_be64(wwn);
8046                 phba->sli4_hba.wwnn.u.name = wwn;
8047                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
8048                        sizeof(uint64_t));
8049                 /* wwn is WWPN of HBA instance */
8050                 wwn = cpu_to_be64(wwn);
8051                 phba->sli4_hba.wwpn.u.name = wwn;
8052
8053                 /* Check to see if it matches any module parameter */
8054                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
8055                         if (wwn == lpfc_enable_nvmet[i]) {
8056 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
8057                                 if (lpfc_nvmet_mem_alloc(phba))
8058                                         break;
8059
8060                                 phba->nvmet_support = 1; /* a match */
8061
8062                                 lpfc_printf_log(phba, KERN_ERR,
8063                                                 LOG_TRACE_EVENT,
8064                                                 "6017 NVME Target %016llx\n",
8065                                                 wwn);
8066 #else
8067                                 lpfc_printf_log(phba, KERN_ERR,
8068                                                 LOG_TRACE_EVENT,
8069                                                 "6021 Can't enable NVME Target."
8070                                                 " NVME_TARGET_FC infrastructure"
8071                                                 " is not in kernel\n");
8072 #endif
8073                                 /* Not supported for NVMET */
8074                                 phba->cfg_xri_rebalancing = 0;
8075                                 if (phba->irq_chann_mode == NHT_MODE) {
8076                                         phba->cfg_irq_chann =
8077                                                 phba->sli4_hba.num_present_cpu;
8078                                         phba->cfg_hdw_queue =
8079                                                 phba->sli4_hba.num_present_cpu;
8080                                         phba->irq_chann_mode = NORMAL_MODE;
8081                                 }
8082                                 break;
8083                         }
8084                 }
8085         }
8086
8087         lpfc_nvme_mod_param_dep(phba);
8088
8089         /*
8090          * Get sli4 parameters that override parameters from Port capabilities.
8091          * If this call fails, it isn't critical unless the SLI4 parameters come
8092          * back in conflict.
8093          */
8094         rc = lpfc_get_sli4_parameters(phba, mboxq);
8095         if (rc) {
8096                 if_type = bf_get(lpfc_sli_intf_if_type,
8097                                  &phba->sli4_hba.sli_intf);
8098                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8099                                 &phba->sli4_hba.sli_intf);
8100                 if (phba->sli4_hba.extents_in_use &&
8101                     phba->sli4_hba.rpi_hdrs_in_use) {
8102                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8103                                         "2999 Unsupported SLI4 Parameters "
8104                                         "Extents and RPI headers enabled.\n");
8105                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8106                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8107                                 mempool_free(mboxq, phba->mbox_mem_pool);
8108                                 rc = -EIO;
8109                                 goto out_free_bsmbx;
8110                         }
8111                 }
8112                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8113                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8114                         mempool_free(mboxq, phba->mbox_mem_pool);
8115                         rc = -EIO;
8116                         goto out_free_bsmbx;
8117                 }
8118         }
8119
8120         /*
8121          * 1 for cmd, 1 for rsp, NVME adds an extra one
8122          * for boundary conditions in its max_sgl_segment template.
8123          */
8124         extra = 2;
8125         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8126                 extra++;
8127
8128         /*
8129          * It doesn't matter what family our adapter is in, we are
8130          * limited to 2 Pages, 512 SGEs, for our SGL.
8131          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8132          */
8133         max_buf_size = (2 * SLI4_PAGE_SIZE);
8134
8135         /*
8136          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8137          * used to create the sg_dma_buf_pool must be calculated.
8138          */
8139         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8140                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8141
8142                 /*
8143                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8144                  * the FCP rsp, and a SGE. Sice we have no control
8145                  * over how many protection segments the SCSI Layer
8146                  * will hand us (ie: there could be one for every block
8147                  * in the IO), just allocate enough SGEs to accomidate
8148                  * our max amount and we need to limit lpfc_sg_seg_cnt
8149                  * to minimize the risk of running out.
8150                  */
8151                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8152                                 sizeof(struct fcp_rsp) + max_buf_size;
8153
8154                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8155                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8156
8157                 /*
8158                  * If supporting DIF, reduce the seg count for scsi to
8159                  * allow room for the DIF sges.
8160                  */
8161                 if (phba->cfg_enable_bg &&
8162                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8163                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8164                 else
8165                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8166
8167         } else {
8168                 /*
8169                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8170                  * the FCP rsp, a SGE for each, and a SGE for up to
8171                  * cfg_sg_seg_cnt data segments.
8172                  */
8173                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8174                                 sizeof(struct fcp_rsp) +
8175                                 ((phba->cfg_sg_seg_cnt + extra) *
8176                                 sizeof(struct sli4_sge));
8177
8178                 /* Total SGEs for scsi_sg_list */
8179                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8180                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8181
8182                 /*
8183                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8184                  * need to post 1 page for the SGL.
8185                  */
8186         }
8187
8188         if (phba->cfg_xpsgl && !phba->nvmet_support)
8189                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8190         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8191                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8192         else
8193                 phba->cfg_sg_dma_buf_size =
8194                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8195
8196         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8197                                sizeof(struct sli4_sge);
8198
8199         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8200         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8201                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8202                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8203                                         "6300 Reducing NVME sg segment "
8204                                         "cnt to %d\n",
8205                                         LPFC_MAX_NVME_SEG_CNT);
8206                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8207                 } else
8208                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8209         }
8210
8211         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8212                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8213                         "total:%d scsi:%d nvme:%d\n",
8214                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8215                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8216                         phba->cfg_nvme_seg_cnt);
8217
8218         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8219                 i = phba->cfg_sg_dma_buf_size;
8220         else
8221                 i = SLI4_PAGE_SIZE;
8222
8223         phba->lpfc_sg_dma_buf_pool =
8224                         dma_pool_create("lpfc_sg_dma_buf_pool",
8225                                         &phba->pcidev->dev,
8226                                         phba->cfg_sg_dma_buf_size,
8227                                         i, 0);
8228         if (!phba->lpfc_sg_dma_buf_pool)
8229                 goto out_free_bsmbx;
8230
8231         phba->lpfc_cmd_rsp_buf_pool =
8232                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8233                                         &phba->pcidev->dev,
8234                                         sizeof(struct fcp_cmnd) +
8235                                         sizeof(struct fcp_rsp),
8236                                         i, 0);
8237         if (!phba->lpfc_cmd_rsp_buf_pool)
8238                 goto out_free_sg_dma_buf;
8239
8240         mempool_free(mboxq, phba->mbox_mem_pool);
8241
8242         /* Verify OAS is supported */
8243         lpfc_sli4_oas_verify(phba);
8244
8245         /* Verify RAS support on adapter */
8246         lpfc_sli4_ras_init(phba);
8247
8248         /* Verify all the SLI4 queues */
8249         rc = lpfc_sli4_queue_verify(phba);
8250         if (rc)
8251                 goto out_free_cmd_rsp_buf;
8252
8253         /* Create driver internal CQE event pool */
8254         rc = lpfc_sli4_cq_event_pool_create(phba);
8255         if (rc)
8256                 goto out_free_cmd_rsp_buf;
8257
8258         /* Initialize sgl lists per host */
8259         lpfc_init_sgl_list(phba);
8260
8261         /* Allocate and initialize active sgl array */
8262         rc = lpfc_init_active_sgl_array(phba);
8263         if (rc) {
8264                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8265                                 "1430 Failed to initialize sgl list.\n");
8266                 goto out_destroy_cq_event_pool;
8267         }
8268         rc = lpfc_sli4_init_rpi_hdrs(phba);
8269         if (rc) {
8270                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8271                                 "1432 Failed to initialize rpi headers.\n");
8272                 goto out_free_active_sgl;
8273         }
8274
8275         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8276         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8277         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8278                                          GFP_KERNEL);
8279         if (!phba->fcf.fcf_rr_bmask) {
8280                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8281                                 "2759 Failed allocate memory for FCF round "
8282                                 "robin failover bmask\n");
8283                 rc = -ENOMEM;
8284                 goto out_remove_rpi_hdrs;
8285         }
8286
8287         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8288                                             sizeof(struct lpfc_hba_eq_hdl),
8289                                             GFP_KERNEL);
8290         if (!phba->sli4_hba.hba_eq_hdl) {
8291                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8292                                 "2572 Failed allocate memory for "
8293                                 "fast-path per-EQ handle array\n");
8294                 rc = -ENOMEM;
8295                 goto out_free_fcf_rr_bmask;
8296         }
8297
8298         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8299                                         sizeof(struct lpfc_vector_map_info),
8300                                         GFP_KERNEL);
8301         if (!phba->sli4_hba.cpu_map) {
8302                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8303                                 "3327 Failed allocate memory for msi-x "
8304                                 "interrupt vector mapping\n");
8305                 rc = -ENOMEM;
8306                 goto out_free_hba_eq_hdl;
8307         }
8308
8309         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8310         if (!phba->sli4_hba.eq_info) {
8311                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8312                                 "3321 Failed allocation for per_cpu stats\n");
8313                 rc = -ENOMEM;
8314                 goto out_free_hba_cpu_map;
8315         }
8316
8317         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8318                                            sizeof(*phba->sli4_hba.idle_stat),
8319                                            GFP_KERNEL);
8320         if (!phba->sli4_hba.idle_stat) {
8321                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8322                                 "3390 Failed allocation for idle_stat\n");
8323                 rc = -ENOMEM;
8324                 goto out_free_hba_eq_info;
8325         }
8326
8327 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8328         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8329         if (!phba->sli4_hba.c_stat) {
8330                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8331                                 "3332 Failed allocating per cpu hdwq stats\n");
8332                 rc = -ENOMEM;
8333                 goto out_free_hba_idle_stat;
8334         }
8335 #endif
8336
8337         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8338         if (!phba->cmf_stat) {
8339                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8340                                 "3331 Failed allocating per cpu cgn stats\n");
8341                 rc = -ENOMEM;
8342                 goto out_free_hba_hdwq_info;
8343         }
8344
8345         /*
8346          * Enable sr-iov virtual functions if supported and configured
8347          * through the module parameter.
8348          */
8349         if (phba->cfg_sriov_nr_virtfn > 0) {
8350                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8351                                                  phba->cfg_sriov_nr_virtfn);
8352                 if (rc) {
8353                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8354                                         "3020 Requested number of SR-IOV "
8355                                         "virtual functions (%d) is not "
8356                                         "supported\n",
8357                                         phba->cfg_sriov_nr_virtfn);
8358                         phba->cfg_sriov_nr_virtfn = 0;
8359                 }
8360         }
8361
8362         return 0;
8363
8364 out_free_hba_hdwq_info:
8365 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8366         free_percpu(phba->sli4_hba.c_stat);
8367 out_free_hba_idle_stat:
8368 #endif
8369         kfree(phba->sli4_hba.idle_stat);
8370 out_free_hba_eq_info:
8371         free_percpu(phba->sli4_hba.eq_info);
8372 out_free_hba_cpu_map:
8373         kfree(phba->sli4_hba.cpu_map);
8374 out_free_hba_eq_hdl:
8375         kfree(phba->sli4_hba.hba_eq_hdl);
8376 out_free_fcf_rr_bmask:
8377         kfree(phba->fcf.fcf_rr_bmask);
8378 out_remove_rpi_hdrs:
8379         lpfc_sli4_remove_rpi_hdrs(phba);
8380 out_free_active_sgl:
8381         lpfc_free_active_sgl(phba);
8382 out_destroy_cq_event_pool:
8383         lpfc_sli4_cq_event_pool_destroy(phba);
8384 out_free_cmd_rsp_buf:
8385         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8386         phba->lpfc_cmd_rsp_buf_pool = NULL;
8387 out_free_sg_dma_buf:
8388         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8389         phba->lpfc_sg_dma_buf_pool = NULL;
8390 out_free_bsmbx:
8391         lpfc_destroy_bootstrap_mbox(phba);
8392 out_free_mem:
8393         lpfc_mem_free(phba);
8394         return rc;
8395 }
8396
8397 /**
8398  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8399  * @phba: pointer to lpfc hba data structure.
8400  *
8401  * This routine is invoked to unset the driver internal resources set up
8402  * specific for supporting the SLI-4 HBA device it attached to.
8403  **/
8404 static void
8405 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8406 {
8407         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8408
8409         free_percpu(phba->sli4_hba.eq_info);
8410 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8411         free_percpu(phba->sli4_hba.c_stat);
8412 #endif
8413         free_percpu(phba->cmf_stat);
8414         kfree(phba->sli4_hba.idle_stat);
8415
8416         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8417         kfree(phba->sli4_hba.cpu_map);
8418         phba->sli4_hba.num_possible_cpu = 0;
8419         phba->sli4_hba.num_present_cpu = 0;
8420         phba->sli4_hba.curr_disp_cpu = 0;
8421         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8422
8423         /* Free memory allocated for fast-path work queue handles */
8424         kfree(phba->sli4_hba.hba_eq_hdl);
8425
8426         /* Free the allocated rpi headers. */
8427         lpfc_sli4_remove_rpi_hdrs(phba);
8428         lpfc_sli4_remove_rpis(phba);
8429
8430         /* Free eligible FCF index bmask */
8431         kfree(phba->fcf.fcf_rr_bmask);
8432
8433         /* Free the ELS sgl list */
8434         lpfc_free_active_sgl(phba);
8435         lpfc_free_els_sgl_list(phba);
8436         lpfc_free_nvmet_sgl_list(phba);
8437
8438         /* Free the completion queue EQ event pool */
8439         lpfc_sli4_cq_event_release_all(phba);
8440         lpfc_sli4_cq_event_pool_destroy(phba);
8441
8442         /* Release resource identifiers. */
8443         lpfc_sli4_dealloc_resource_identifiers(phba);
8444
8445         /* Free the bsmbx region. */
8446         lpfc_destroy_bootstrap_mbox(phba);
8447
8448         /* Free the SLI Layer memory with SLI4 HBAs */
8449         lpfc_mem_free_all(phba);
8450
8451         /* Free the current connect table */
8452         list_for_each_entry_safe(conn_entry, next_conn_entry,
8453                 &phba->fcf_conn_rec_list, list) {
8454                 list_del_init(&conn_entry->list);
8455                 kfree(conn_entry);
8456         }
8457
8458         return;
8459 }
8460
8461 /**
8462  * lpfc_init_api_table_setup - Set up init api function jump table
8463  * @phba: The hba struct for which this call is being executed.
8464  * @dev_grp: The HBA PCI-Device group number.
8465  *
8466  * This routine sets up the device INIT interface API function jump table
8467  * in @phba struct.
8468  *
8469  * Returns: 0 - success, -ENODEV - failure.
8470  **/
8471 int
8472 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8473 {
8474         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8475         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8476         phba->lpfc_selective_reset = lpfc_selective_reset;
8477         switch (dev_grp) {
8478         case LPFC_PCI_DEV_LP:
8479                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8480                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8481                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8482                 break;
8483         case LPFC_PCI_DEV_OC:
8484                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8485                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8486                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8487                 break;
8488         default:
8489                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8490                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8491                                 dev_grp);
8492                 return -ENODEV;
8493         }
8494         return 0;
8495 }
8496
8497 /**
8498  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8499  * @phba: pointer to lpfc hba data structure.
8500  *
8501  * This routine is invoked to set up the driver internal resources after the
8502  * device specific resource setup to support the HBA device it attached to.
8503  *
8504  * Return codes
8505  *      0 - successful
8506  *      other values - error
8507  **/
8508 static int
8509 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8510 {
8511         int error;
8512
8513         /* Startup the kernel thread for this host adapter. */
8514         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8515                                           "lpfc_worker_%d", phba->brd_no);
8516         if (IS_ERR(phba->worker_thread)) {
8517                 error = PTR_ERR(phba->worker_thread);
8518                 return error;
8519         }
8520
8521         return 0;
8522 }
8523
8524 /**
8525  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8526  * @phba: pointer to lpfc hba data structure.
8527  *
8528  * This routine is invoked to unset the driver internal resources set up after
8529  * the device specific resource setup for supporting the HBA device it
8530  * attached to.
8531  **/
8532 static void
8533 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8534 {
8535         if (phba->wq) {
8536                 flush_workqueue(phba->wq);
8537                 destroy_workqueue(phba->wq);
8538                 phba->wq = NULL;
8539         }
8540
8541         /* Stop kernel worker thread */
8542         if (phba->worker_thread)
8543                 kthread_stop(phba->worker_thread);
8544 }
8545
8546 /**
8547  * lpfc_free_iocb_list - Free iocb list.
8548  * @phba: pointer to lpfc hba data structure.
8549  *
8550  * This routine is invoked to free the driver's IOCB list and memory.
8551  **/
8552 void
8553 lpfc_free_iocb_list(struct lpfc_hba *phba)
8554 {
8555         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8556
8557         spin_lock_irq(&phba->hbalock);
8558         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8559                                  &phba->lpfc_iocb_list, list) {
8560                 list_del(&iocbq_entry->list);
8561                 kfree(iocbq_entry);
8562                 phba->total_iocbq_bufs--;
8563         }
8564         spin_unlock_irq(&phba->hbalock);
8565
8566         return;
8567 }
8568
8569 /**
8570  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8571  * @phba: pointer to lpfc hba data structure.
8572  * @iocb_count: number of requested iocbs
8573  *
8574  * This routine is invoked to allocate and initizlize the driver's IOCB
8575  * list and set up the IOCB tag array accordingly.
8576  *
8577  * Return codes
8578  *      0 - successful
8579  *      other values - error
8580  **/
8581 int
8582 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8583 {
8584         struct lpfc_iocbq *iocbq_entry = NULL;
8585         uint16_t iotag;
8586         int i;
8587
8588         /* Initialize and populate the iocb list per host.  */
8589         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8590         for (i = 0; i < iocb_count; i++) {
8591                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8592                 if (iocbq_entry == NULL) {
8593                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8594                                 "expected %d count. Unloading driver.\n",
8595                                 __func__, i, iocb_count);
8596                         goto out_free_iocbq;
8597                 }
8598
8599                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8600                 if (iotag == 0) {
8601                         kfree(iocbq_entry);
8602                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8603                                 "Unloading driver.\n", __func__);
8604                         goto out_free_iocbq;
8605                 }
8606                 iocbq_entry->sli4_lxritag = NO_XRI;
8607                 iocbq_entry->sli4_xritag = NO_XRI;
8608
8609                 spin_lock_irq(&phba->hbalock);
8610                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8611                 phba->total_iocbq_bufs++;
8612                 spin_unlock_irq(&phba->hbalock);
8613         }
8614
8615         return 0;
8616
8617 out_free_iocbq:
8618         lpfc_free_iocb_list(phba);
8619
8620         return -ENOMEM;
8621 }
8622
8623 /**
8624  * lpfc_free_sgl_list - Free a given sgl list.
8625  * @phba: pointer to lpfc hba data structure.
8626  * @sglq_list: pointer to the head of sgl list.
8627  *
8628  * This routine is invoked to free a give sgl list and memory.
8629  **/
8630 void
8631 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8632 {
8633         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8634
8635         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8636                 list_del(&sglq_entry->list);
8637                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8638                 kfree(sglq_entry);
8639         }
8640 }
8641
8642 /**
8643  * lpfc_free_els_sgl_list - Free els sgl list.
8644  * @phba: pointer to lpfc hba data structure.
8645  *
8646  * This routine is invoked to free the driver's els sgl list and memory.
8647  **/
8648 static void
8649 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8650 {
8651         LIST_HEAD(sglq_list);
8652
8653         /* Retrieve all els sgls from driver list */
8654         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8655         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8656         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8657
8658         /* Now free the sgl list */
8659         lpfc_free_sgl_list(phba, &sglq_list);
8660 }
8661
8662 /**
8663  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8664  * @phba: pointer to lpfc hba data structure.
8665  *
8666  * This routine is invoked to free the driver's nvmet sgl list and memory.
8667  **/
8668 static void
8669 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8670 {
8671         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8672         LIST_HEAD(sglq_list);
8673
8674         /* Retrieve all nvmet sgls from driver list */
8675         spin_lock_irq(&phba->hbalock);
8676         spin_lock(&phba->sli4_hba.sgl_list_lock);
8677         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8678         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8679         spin_unlock_irq(&phba->hbalock);
8680
8681         /* Now free the sgl list */
8682         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8683                 list_del(&sglq_entry->list);
8684                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8685                 kfree(sglq_entry);
8686         }
8687
8688         /* Update the nvmet_xri_cnt to reflect no current sgls.
8689          * The next initialization cycle sets the count and allocates
8690          * the sgls over again.
8691          */
8692         phba->sli4_hba.nvmet_xri_cnt = 0;
8693 }
8694
8695 /**
8696  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8697  * @phba: pointer to lpfc hba data structure.
8698  *
8699  * This routine is invoked to allocate the driver's active sgl memory.
8700  * This array will hold the sglq_entry's for active IOs.
8701  **/
8702 static int
8703 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8704 {
8705         int size;
8706         size = sizeof(struct lpfc_sglq *);
8707         size *= phba->sli4_hba.max_cfg_param.max_xri;
8708
8709         phba->sli4_hba.lpfc_sglq_active_list =
8710                 kzalloc(size, GFP_KERNEL);
8711         if (!phba->sli4_hba.lpfc_sglq_active_list)
8712                 return -ENOMEM;
8713         return 0;
8714 }
8715
8716 /**
8717  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8718  * @phba: pointer to lpfc hba data structure.
8719  *
8720  * This routine is invoked to walk through the array of active sglq entries
8721  * and free all of the resources.
8722  * This is just a place holder for now.
8723  **/
8724 static void
8725 lpfc_free_active_sgl(struct lpfc_hba *phba)
8726 {
8727         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8728 }
8729
8730 /**
8731  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8732  * @phba: pointer to lpfc hba data structure.
8733  *
8734  * This routine is invoked to allocate and initizlize the driver's sgl
8735  * list and set up the sgl xritag tag array accordingly.
8736  *
8737  **/
8738 static void
8739 lpfc_init_sgl_list(struct lpfc_hba *phba)
8740 {
8741         /* Initialize and populate the sglq list per host/VF. */
8742         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8743         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8744         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8745         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8746
8747         /* els xri-sgl book keeping */
8748         phba->sli4_hba.els_xri_cnt = 0;
8749
8750         /* nvme xri-buffer book keeping */
8751         phba->sli4_hba.io_xri_cnt = 0;
8752 }
8753
8754 /**
8755  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8756  * @phba: pointer to lpfc hba data structure.
8757  *
8758  * This routine is invoked to post rpi header templates to the
8759  * port for those SLI4 ports that do not support extents.  This routine
8760  * posts a PAGE_SIZE memory region to the port to hold up to
8761  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8762  * and should be called only when interrupts are disabled.
8763  *
8764  * Return codes
8765  *      0 - successful
8766  *      -ERROR - otherwise.
8767  **/
8768 int
8769 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8770 {
8771         int rc = 0;
8772         struct lpfc_rpi_hdr *rpi_hdr;
8773
8774         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8775         if (!phba->sli4_hba.rpi_hdrs_in_use)
8776                 return rc;
8777         if (phba->sli4_hba.extents_in_use)
8778                 return -EIO;
8779
8780         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8781         if (!rpi_hdr) {
8782                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8783                                 "0391 Error during rpi post operation\n");
8784                 lpfc_sli4_remove_rpis(phba);
8785                 rc = -ENODEV;
8786         }
8787
8788         return rc;
8789 }
8790
8791 /**
8792  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8793  * @phba: pointer to lpfc hba data structure.
8794  *
8795  * This routine is invoked to allocate a single 4KB memory region to
8796  * support rpis and stores them in the phba.  This single region
8797  * provides support for up to 64 rpis.  The region is used globally
8798  * by the device.
8799  *
8800  * Returns:
8801  *   A valid rpi hdr on success.
8802  *   A NULL pointer on any failure.
8803  **/
8804 struct lpfc_rpi_hdr *
8805 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8806 {
8807         uint16_t rpi_limit, curr_rpi_range;
8808         struct lpfc_dmabuf *dmabuf;
8809         struct lpfc_rpi_hdr *rpi_hdr;
8810
8811         /*
8812          * If the SLI4 port supports extents, posting the rpi header isn't
8813          * required.  Set the expected maximum count and let the actual value
8814          * get set when extents are fully allocated.
8815          */
8816         if (!phba->sli4_hba.rpi_hdrs_in_use)
8817                 return NULL;
8818         if (phba->sli4_hba.extents_in_use)
8819                 return NULL;
8820
8821         /* The limit on the logical index is just the max_rpi count. */
8822         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8823
8824         spin_lock_irq(&phba->hbalock);
8825         /*
8826          * Establish the starting RPI in this header block.  The starting
8827          * rpi is normalized to a zero base because the physical rpi is
8828          * port based.
8829          */
8830         curr_rpi_range = phba->sli4_hba.next_rpi;
8831         spin_unlock_irq(&phba->hbalock);
8832
8833         /* Reached full RPI range */
8834         if (curr_rpi_range == rpi_limit)
8835                 return NULL;
8836
8837         /*
8838          * First allocate the protocol header region for the port.  The
8839          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8840          */
8841         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8842         if (!dmabuf)
8843                 return NULL;
8844
8845         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8846                                           LPFC_HDR_TEMPLATE_SIZE,
8847                                           &dmabuf->phys, GFP_KERNEL);
8848         if (!dmabuf->virt) {
8849                 rpi_hdr = NULL;
8850                 goto err_free_dmabuf;
8851         }
8852
8853         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8854                 rpi_hdr = NULL;
8855                 goto err_free_coherent;
8856         }
8857
8858         /* Save the rpi header data for cleanup later. */
8859         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8860         if (!rpi_hdr)
8861                 goto err_free_coherent;
8862
8863         rpi_hdr->dmabuf = dmabuf;
8864         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8865         rpi_hdr->page_count = 1;
8866         spin_lock_irq(&phba->hbalock);
8867
8868         /* The rpi_hdr stores the logical index only. */
8869         rpi_hdr->start_rpi = curr_rpi_range;
8870         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8871         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8872
8873         spin_unlock_irq(&phba->hbalock);
8874         return rpi_hdr;
8875
8876  err_free_coherent:
8877         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8878                           dmabuf->virt, dmabuf->phys);
8879  err_free_dmabuf:
8880         kfree(dmabuf);
8881         return NULL;
8882 }
8883
8884 /**
8885  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8886  * @phba: pointer to lpfc hba data structure.
8887  *
8888  * This routine is invoked to remove all memory resources allocated
8889  * to support rpis for SLI4 ports not supporting extents. This routine
8890  * presumes the caller has released all rpis consumed by fabric or port
8891  * logins and is prepared to have the header pages removed.
8892  **/
8893 void
8894 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8895 {
8896         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8897
8898         if (!phba->sli4_hba.rpi_hdrs_in_use)
8899                 goto exit;
8900
8901         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8902                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8903                 list_del(&rpi_hdr->list);
8904                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8905                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8906                 kfree(rpi_hdr->dmabuf);
8907                 kfree(rpi_hdr);
8908         }
8909  exit:
8910         /* There are no rpis available to the port now. */
8911         phba->sli4_hba.next_rpi = 0;
8912 }
8913
8914 /**
8915  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8916  * @pdev: pointer to pci device data structure.
8917  *
8918  * This routine is invoked to allocate the driver hba data structure for an
8919  * HBA device. If the allocation is successful, the phba reference to the
8920  * PCI device data structure is set.
8921  *
8922  * Return codes
8923  *      pointer to @phba - successful
8924  *      NULL - error
8925  **/
8926 static struct lpfc_hba *
8927 lpfc_hba_alloc(struct pci_dev *pdev)
8928 {
8929         struct lpfc_hba *phba;
8930
8931         /* Allocate memory for HBA structure */
8932         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8933         if (!phba) {
8934                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8935                 return NULL;
8936         }
8937
8938         /* Set reference to PCI device in HBA structure */
8939         phba->pcidev = pdev;
8940
8941         /* Assign an unused board number */
8942         phba->brd_no = lpfc_get_instance();
8943         if (phba->brd_no < 0) {
8944                 kfree(phba);
8945                 return NULL;
8946         }
8947         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8948
8949         spin_lock_init(&phba->ct_ev_lock);
8950         INIT_LIST_HEAD(&phba->ct_ev_waiters);
8951
8952         return phba;
8953 }
8954
8955 /**
8956  * lpfc_hba_free - Free driver hba data structure with a device.
8957  * @phba: pointer to lpfc hba data structure.
8958  *
8959  * This routine is invoked to free the driver hba data structure with an
8960  * HBA device.
8961  **/
8962 static void
8963 lpfc_hba_free(struct lpfc_hba *phba)
8964 {
8965         if (phba->sli_rev == LPFC_SLI_REV4)
8966                 kfree(phba->sli4_hba.hdwq);
8967
8968         /* Release the driver assigned board number */
8969         idr_remove(&lpfc_hba_index, phba->brd_no);
8970
8971         /* Free memory allocated with sli3 rings */
8972         kfree(phba->sli.sli3_ring);
8973         phba->sli.sli3_ring = NULL;
8974
8975         kfree(phba);
8976         return;
8977 }
8978
8979 /**
8980  * lpfc_create_shost - Create hba physical port with associated scsi host.
8981  * @phba: pointer to lpfc hba data structure.
8982  *
8983  * This routine is invoked to create HBA physical port and associate a SCSI
8984  * host with it.
8985  *
8986  * Return codes
8987  *      0 - successful
8988  *      other values - error
8989  **/
8990 static int
8991 lpfc_create_shost(struct lpfc_hba *phba)
8992 {
8993         struct lpfc_vport *vport;
8994         struct Scsi_Host  *shost;
8995
8996         /* Initialize HBA FC structure */
8997         phba->fc_edtov = FF_DEF_EDTOV;
8998         phba->fc_ratov = FF_DEF_RATOV;
8999         phba->fc_altov = FF_DEF_ALTOV;
9000         phba->fc_arbtov = FF_DEF_ARBTOV;
9001
9002         atomic_set(&phba->sdev_cnt, 0);
9003         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
9004         if (!vport)
9005                 return -ENODEV;
9006
9007         shost = lpfc_shost_from_vport(vport);
9008         phba->pport = vport;
9009
9010         if (phba->nvmet_support) {
9011                 /* Only 1 vport (pport) will support NVME target */
9012                 phba->targetport = NULL;
9013                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
9014                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
9015                                 "6076 NVME Target Found\n");
9016         }
9017
9018         lpfc_debugfs_initialize(vport);
9019         /* Put reference to SCSI host to driver's device private data */
9020         pci_set_drvdata(phba->pcidev, shost);
9021
9022         /*
9023          * At this point we are fully registered with PSA. In addition,
9024          * any initial discovery should be completed.
9025          */
9026         vport->load_flag |= FC_ALLOW_FDMI;
9027         if (phba->cfg_enable_SmartSAN ||
9028             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
9029
9030                 /* Setup appropriate attribute masks */
9031                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
9032                 if (phba->cfg_enable_SmartSAN)
9033                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
9034                 else
9035                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
9036         }
9037         return 0;
9038 }
9039
9040 /**
9041  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
9042  * @phba: pointer to lpfc hba data structure.
9043  *
9044  * This routine is invoked to destroy HBA physical port and the associated
9045  * SCSI host.
9046  **/
9047 static void
9048 lpfc_destroy_shost(struct lpfc_hba *phba)
9049 {
9050         struct lpfc_vport *vport = phba->pport;
9051
9052         /* Destroy physical port that associated with the SCSI host */
9053         destroy_port(vport);
9054
9055         return;
9056 }
9057
9058 /**
9059  * lpfc_setup_bg - Setup Block guard structures and debug areas.
9060  * @phba: pointer to lpfc hba data structure.
9061  * @shost: the shost to be used to detect Block guard settings.
9062  *
9063  * This routine sets up the local Block guard protocol settings for @shost.
9064  * This routine also allocates memory for debugging bg buffers.
9065  **/
9066 static void
9067 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
9068 {
9069         uint32_t old_mask;
9070         uint32_t old_guard;
9071
9072         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9073                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9074                                 "1478 Registering BlockGuard with the "
9075                                 "SCSI layer\n");
9076
9077                 old_mask = phba->cfg_prot_mask;
9078                 old_guard = phba->cfg_prot_guard;
9079
9080                 /* Only allow supported values */
9081                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9082                         SHOST_DIX_TYPE0_PROTECTION |
9083                         SHOST_DIX_TYPE1_PROTECTION);
9084                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9085                                          SHOST_DIX_GUARD_CRC);
9086
9087                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9088                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9089                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9090
9091                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9092                         if ((old_mask != phba->cfg_prot_mask) ||
9093                                 (old_guard != phba->cfg_prot_guard))
9094                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9095                                         "1475 Registering BlockGuard with the "
9096                                         "SCSI layer: mask %d  guard %d\n",
9097                                         phba->cfg_prot_mask,
9098                                         phba->cfg_prot_guard);
9099
9100                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9101                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9102                 } else
9103                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9104                                 "1479 Not Registering BlockGuard with the SCSI "
9105                                 "layer, Bad protection parameters: %d %d\n",
9106                                 old_mask, old_guard);
9107         }
9108 }
9109
9110 /**
9111  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9112  * @phba: pointer to lpfc hba data structure.
9113  *
9114  * This routine is invoked to perform all the necessary post initialization
9115  * setup for the device.
9116  **/
9117 static void
9118 lpfc_post_init_setup(struct lpfc_hba *phba)
9119 {
9120         struct Scsi_Host  *shost;
9121         struct lpfc_adapter_event_header adapter_event;
9122
9123         /* Get the default values for Model Name and Description */
9124         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9125
9126         /*
9127          * hba setup may have changed the hba_queue_depth so we need to
9128          * adjust the value of can_queue.
9129          */
9130         shost = pci_get_drvdata(phba->pcidev);
9131         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9132
9133         lpfc_host_attrib_init(shost);
9134
9135         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9136                 spin_lock_irq(shost->host_lock);
9137                 lpfc_poll_start_timer(phba);
9138                 spin_unlock_irq(shost->host_lock);
9139         }
9140
9141         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9142                         "0428 Perform SCSI scan\n");
9143         /* Send board arrival event to upper layer */
9144         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9145         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9146         fc_host_post_vendor_event(shost, fc_get_event_number(),
9147                                   sizeof(adapter_event),
9148                                   (char *) &adapter_event,
9149                                   LPFC_NL_VENDOR_ID);
9150         return;
9151 }
9152
9153 /**
9154  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9155  * @phba: pointer to lpfc hba data structure.
9156  *
9157  * This routine is invoked to set up the PCI device memory space for device
9158  * with SLI-3 interface spec.
9159  *
9160  * Return codes
9161  *      0 - successful
9162  *      other values - error
9163  **/
9164 static int
9165 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9166 {
9167         struct pci_dev *pdev = phba->pcidev;
9168         unsigned long bar0map_len, bar2map_len;
9169         int i, hbq_count;
9170         void *ptr;
9171         int error;
9172
9173         if (!pdev)
9174                 return -ENODEV;
9175
9176         /* Set the device DMA mask size */
9177         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9178         if (error)
9179                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9180         if (error)
9181                 return error;
9182         error = -ENODEV;
9183
9184         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9185          * required by each mapping.
9186          */
9187         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9188         bar0map_len = pci_resource_len(pdev, 0);
9189
9190         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9191         bar2map_len = pci_resource_len(pdev, 2);
9192
9193         /* Map HBA SLIM to a kernel virtual address. */
9194         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9195         if (!phba->slim_memmap_p) {
9196                 dev_printk(KERN_ERR, &pdev->dev,
9197                            "ioremap failed for SLIM memory.\n");
9198                 goto out;
9199         }
9200
9201         /* Map HBA Control Registers to a kernel virtual address. */
9202         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9203         if (!phba->ctrl_regs_memmap_p) {
9204                 dev_printk(KERN_ERR, &pdev->dev,
9205                            "ioremap failed for HBA control registers.\n");
9206                 goto out_iounmap_slim;
9207         }
9208
9209         /* Allocate memory for SLI-2 structures */
9210         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9211                                                &phba->slim2p.phys, GFP_KERNEL);
9212         if (!phba->slim2p.virt)
9213                 goto out_iounmap;
9214
9215         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9216         phba->mbox_ext = (phba->slim2p.virt +
9217                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9218         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9219         phba->IOCBs = (phba->slim2p.virt +
9220                        offsetof(struct lpfc_sli2_slim, IOCBs));
9221
9222         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9223                                                  lpfc_sli_hbq_size(),
9224                                                  &phba->hbqslimp.phys,
9225                                                  GFP_KERNEL);
9226         if (!phba->hbqslimp.virt)
9227                 goto out_free_slim;
9228
9229         hbq_count = lpfc_sli_hbq_count();
9230         ptr = phba->hbqslimp.virt;
9231         for (i = 0; i < hbq_count; ++i) {
9232                 phba->hbqs[i].hbq_virt = ptr;
9233                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9234                 ptr += (lpfc_hbq_defs[i]->entry_count *
9235                         sizeof(struct lpfc_hbq_entry));
9236         }
9237         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9238         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9239
9240         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9241
9242         phba->MBslimaddr = phba->slim_memmap_p;
9243         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9244         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9245         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9246         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9247
9248         return 0;
9249
9250 out_free_slim:
9251         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9252                           phba->slim2p.virt, phba->slim2p.phys);
9253 out_iounmap:
9254         iounmap(phba->ctrl_regs_memmap_p);
9255 out_iounmap_slim:
9256         iounmap(phba->slim_memmap_p);
9257 out:
9258         return error;
9259 }
9260
9261 /**
9262  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9263  * @phba: pointer to lpfc hba data structure.
9264  *
9265  * This routine is invoked to unset the PCI device memory space for device
9266  * with SLI-3 interface spec.
9267  **/
9268 static void
9269 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9270 {
9271         struct pci_dev *pdev;
9272
9273         /* Obtain PCI device reference */
9274         if (!phba->pcidev)
9275                 return;
9276         else
9277                 pdev = phba->pcidev;
9278
9279         /* Free coherent DMA memory allocated */
9280         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9281                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9282         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9283                           phba->slim2p.virt, phba->slim2p.phys);
9284
9285         /* I/O memory unmap */
9286         iounmap(phba->ctrl_regs_memmap_p);
9287         iounmap(phba->slim_memmap_p);
9288
9289         return;
9290 }
9291
9292 /**
9293  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9294  * @phba: pointer to lpfc hba data structure.
9295  *
9296  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9297  * done and check status.
9298  *
9299  * Return 0 if successful, otherwise -ENODEV.
9300  **/
9301 int
9302 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9303 {
9304         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9305         struct lpfc_register reg_data;
9306         int i, port_error = 0;
9307         uint32_t if_type;
9308
9309         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9310         memset(&reg_data, 0, sizeof(reg_data));
9311         if (!phba->sli4_hba.PSMPHRregaddr)
9312                 return -ENODEV;
9313
9314         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9315         for (i = 0; i < 3000; i++) {
9316                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9317                         &portsmphr_reg.word0) ||
9318                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9319                         /* Port has a fatal POST error, break out */
9320                         port_error = -ENODEV;
9321                         break;
9322                 }
9323                 if (LPFC_POST_STAGE_PORT_READY ==
9324                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9325                         break;
9326                 msleep(10);
9327         }
9328
9329         /*
9330          * If there was a port error during POST, then don't proceed with
9331          * other register reads as the data may not be valid.  Just exit.
9332          */
9333         if (port_error) {
9334                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9335                         "1408 Port Failed POST - portsmphr=0x%x, "
9336                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9337                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9338                         portsmphr_reg.word0,
9339                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9340                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9341                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9342                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9343                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9344                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9345                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9346                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9347         } else {
9348                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9349                                 "2534 Device Info: SLIFamily=0x%x, "
9350                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9351                                 "SLIHint_2=0x%x, FT=0x%x\n",
9352                                 bf_get(lpfc_sli_intf_sli_family,
9353                                        &phba->sli4_hba.sli_intf),
9354                                 bf_get(lpfc_sli_intf_slirev,
9355                                        &phba->sli4_hba.sli_intf),
9356                                 bf_get(lpfc_sli_intf_if_type,
9357                                        &phba->sli4_hba.sli_intf),
9358                                 bf_get(lpfc_sli_intf_sli_hint1,
9359                                        &phba->sli4_hba.sli_intf),
9360                                 bf_get(lpfc_sli_intf_sli_hint2,
9361                                        &phba->sli4_hba.sli_intf),
9362                                 bf_get(lpfc_sli_intf_func_type,
9363                                        &phba->sli4_hba.sli_intf));
9364                 /*
9365                  * Check for other Port errors during the initialization
9366                  * process.  Fail the load if the port did not come up
9367                  * correctly.
9368                  */
9369                 if_type = bf_get(lpfc_sli_intf_if_type,
9370                                  &phba->sli4_hba.sli_intf);
9371                 switch (if_type) {
9372                 case LPFC_SLI_INTF_IF_TYPE_0:
9373                         phba->sli4_hba.ue_mask_lo =
9374                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9375                         phba->sli4_hba.ue_mask_hi =
9376                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9377                         uerrlo_reg.word0 =
9378                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9379                         uerrhi_reg.word0 =
9380                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9381                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9382                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9383                                 lpfc_printf_log(phba, KERN_ERR,
9384                                                 LOG_TRACE_EVENT,
9385                                                 "1422 Unrecoverable Error "
9386                                                 "Detected during POST "
9387                                                 "uerr_lo_reg=0x%x, "
9388                                                 "uerr_hi_reg=0x%x, "
9389                                                 "ue_mask_lo_reg=0x%x, "
9390                                                 "ue_mask_hi_reg=0x%x\n",
9391                                                 uerrlo_reg.word0,
9392                                                 uerrhi_reg.word0,
9393                                                 phba->sli4_hba.ue_mask_lo,
9394                                                 phba->sli4_hba.ue_mask_hi);
9395                                 port_error = -ENODEV;
9396                         }
9397                         break;
9398                 case LPFC_SLI_INTF_IF_TYPE_2:
9399                 case LPFC_SLI_INTF_IF_TYPE_6:
9400                         /* Final checks.  The port status should be clean. */
9401                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9402                                 &reg_data.word0) ||
9403                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
9404                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
9405                                 phba->work_status[0] =
9406                                         readl(phba->sli4_hba.u.if_type2.
9407                                               ERR1regaddr);
9408                                 phba->work_status[1] =
9409                                         readl(phba->sli4_hba.u.if_type2.
9410                                               ERR2regaddr);
9411                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9412                                         "2888 Unrecoverable port error "
9413                                         "following POST: port status reg "
9414                                         "0x%x, port_smphr reg 0x%x, "
9415                                         "error 1=0x%x, error 2=0x%x\n",
9416                                         reg_data.word0,
9417                                         portsmphr_reg.word0,
9418                                         phba->work_status[0],
9419                                         phba->work_status[1]);
9420                                 port_error = -ENODEV;
9421                                 break;
9422                         }
9423
9424                         if (lpfc_pldv_detect &&
9425                             bf_get(lpfc_sli_intf_sli_family,
9426                                    &phba->sli4_hba.sli_intf) ==
9427                                         LPFC_SLI_INTF_FAMILY_G6)
9428                                 pci_write_config_byte(phba->pcidev,
9429                                                       LPFC_SLI_INTF, CFG_PLD);
9430                         break;
9431                 case LPFC_SLI_INTF_IF_TYPE_1:
9432                 default:
9433                         break;
9434                 }
9435         }
9436         return port_error;
9437 }
9438
9439 /**
9440  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9441  * @phba: pointer to lpfc hba data structure.
9442  * @if_type:  The SLI4 interface type getting configured.
9443  *
9444  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9445  * memory map.
9446  **/
9447 static void
9448 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9449 {
9450         switch (if_type) {
9451         case LPFC_SLI_INTF_IF_TYPE_0:
9452                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9453                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9454                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9455                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9456                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9457                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9458                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9459                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9460                 phba->sli4_hba.SLIINTFregaddr =
9461                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9462                 break;
9463         case LPFC_SLI_INTF_IF_TYPE_2:
9464                 phba->sli4_hba.u.if_type2.EQDregaddr =
9465                         phba->sli4_hba.conf_regs_memmap_p +
9466                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9467                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9468                         phba->sli4_hba.conf_regs_memmap_p +
9469                                                 LPFC_CTL_PORT_ER1_OFFSET;
9470                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9471                         phba->sli4_hba.conf_regs_memmap_p +
9472                                                 LPFC_CTL_PORT_ER2_OFFSET;
9473                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9474                         phba->sli4_hba.conf_regs_memmap_p +
9475                                                 LPFC_CTL_PORT_CTL_OFFSET;
9476                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9477                         phba->sli4_hba.conf_regs_memmap_p +
9478                                                 LPFC_CTL_PORT_STA_OFFSET;
9479                 phba->sli4_hba.SLIINTFregaddr =
9480                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9481                 phba->sli4_hba.PSMPHRregaddr =
9482                         phba->sli4_hba.conf_regs_memmap_p +
9483                                                 LPFC_CTL_PORT_SEM_OFFSET;
9484                 phba->sli4_hba.RQDBregaddr =
9485                         phba->sli4_hba.conf_regs_memmap_p +
9486                                                 LPFC_ULP0_RQ_DOORBELL;
9487                 phba->sli4_hba.WQDBregaddr =
9488                         phba->sli4_hba.conf_regs_memmap_p +
9489                                                 LPFC_ULP0_WQ_DOORBELL;
9490                 phba->sli4_hba.CQDBregaddr =
9491                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9492                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9493                 phba->sli4_hba.MQDBregaddr =
9494                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9495                 phba->sli4_hba.BMBXregaddr =
9496                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9497                 break;
9498         case LPFC_SLI_INTF_IF_TYPE_6:
9499                 phba->sli4_hba.u.if_type2.EQDregaddr =
9500                         phba->sli4_hba.conf_regs_memmap_p +
9501                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9502                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9503                         phba->sli4_hba.conf_regs_memmap_p +
9504                                                 LPFC_CTL_PORT_ER1_OFFSET;
9505                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9506                         phba->sli4_hba.conf_regs_memmap_p +
9507                                                 LPFC_CTL_PORT_ER2_OFFSET;
9508                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9509                         phba->sli4_hba.conf_regs_memmap_p +
9510                                                 LPFC_CTL_PORT_CTL_OFFSET;
9511                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9512                         phba->sli4_hba.conf_regs_memmap_p +
9513                                                 LPFC_CTL_PORT_STA_OFFSET;
9514                 phba->sli4_hba.PSMPHRregaddr =
9515                         phba->sli4_hba.conf_regs_memmap_p +
9516                                                 LPFC_CTL_PORT_SEM_OFFSET;
9517                 phba->sli4_hba.BMBXregaddr =
9518                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9519                 break;
9520         case LPFC_SLI_INTF_IF_TYPE_1:
9521         default:
9522                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9523                            "FATAL - unsupported SLI4 interface type - %d\n",
9524                            if_type);
9525                 break;
9526         }
9527 }
9528
9529 /**
9530  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9531  * @phba: pointer to lpfc hba data structure.
9532  * @if_type: sli if type to operate on.
9533  *
9534  * This routine is invoked to set up SLI4 BAR1 register memory map.
9535  **/
9536 static void
9537 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9538 {
9539         switch (if_type) {
9540         case LPFC_SLI_INTF_IF_TYPE_0:
9541                 phba->sli4_hba.PSMPHRregaddr =
9542                         phba->sli4_hba.ctrl_regs_memmap_p +
9543                         LPFC_SLIPORT_IF0_SMPHR;
9544                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9545                         LPFC_HST_ISR0;
9546                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9547                         LPFC_HST_IMR0;
9548                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9549                         LPFC_HST_ISCR0;
9550                 break;
9551         case LPFC_SLI_INTF_IF_TYPE_6:
9552                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9553                         LPFC_IF6_RQ_DOORBELL;
9554                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9555                         LPFC_IF6_WQ_DOORBELL;
9556                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9557                         LPFC_IF6_CQ_DOORBELL;
9558                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9559                         LPFC_IF6_EQ_DOORBELL;
9560                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9561                         LPFC_IF6_MQ_DOORBELL;
9562                 break;
9563         case LPFC_SLI_INTF_IF_TYPE_2:
9564         case LPFC_SLI_INTF_IF_TYPE_1:
9565         default:
9566                 dev_err(&phba->pcidev->dev,
9567                            "FATAL - unsupported SLI4 interface type - %d\n",
9568                            if_type);
9569                 break;
9570         }
9571 }
9572
9573 /**
9574  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9575  * @phba: pointer to lpfc hba data structure.
9576  * @vf: virtual function number
9577  *
9578  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9579  * based on the given viftual function number, @vf.
9580  *
9581  * Return 0 if successful, otherwise -ENODEV.
9582  **/
9583 static int
9584 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9585 {
9586         if (vf > LPFC_VIR_FUNC_MAX)
9587                 return -ENODEV;
9588
9589         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9590                                 vf * LPFC_VFR_PAGE_SIZE +
9591                                         LPFC_ULP0_RQ_DOORBELL);
9592         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9593                                 vf * LPFC_VFR_PAGE_SIZE +
9594                                         LPFC_ULP0_WQ_DOORBELL);
9595         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9596                                 vf * LPFC_VFR_PAGE_SIZE +
9597                                         LPFC_EQCQ_DOORBELL);
9598         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9599         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9600                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9601         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9602                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9603         return 0;
9604 }
9605
9606 /**
9607  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9608  * @phba: pointer to lpfc hba data structure.
9609  *
9610  * This routine is invoked to create the bootstrap mailbox
9611  * region consistent with the SLI-4 interface spec.  This
9612  * routine allocates all memory necessary to communicate
9613  * mailbox commands to the port and sets up all alignment
9614  * needs.  No locks are expected to be held when calling
9615  * this routine.
9616  *
9617  * Return codes
9618  *      0 - successful
9619  *      -ENOMEM - could not allocated memory.
9620  **/
9621 static int
9622 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9623 {
9624         uint32_t bmbx_size;
9625         struct lpfc_dmabuf *dmabuf;
9626         struct dma_address *dma_address;
9627         uint32_t pa_addr;
9628         uint64_t phys_addr;
9629
9630         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9631         if (!dmabuf)
9632                 return -ENOMEM;
9633
9634         /*
9635          * The bootstrap mailbox region is comprised of 2 parts
9636          * plus an alignment restriction of 16 bytes.
9637          */
9638         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9639         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9640                                           &dmabuf->phys, GFP_KERNEL);
9641         if (!dmabuf->virt) {
9642                 kfree(dmabuf);
9643                 return -ENOMEM;
9644         }
9645
9646         /*
9647          * Initialize the bootstrap mailbox pointers now so that the register
9648          * operations are simple later.  The mailbox dma address is required
9649          * to be 16-byte aligned.  Also align the virtual memory as each
9650          * maibox is copied into the bmbx mailbox region before issuing the
9651          * command to the port.
9652          */
9653         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9654         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9655
9656         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9657                                               LPFC_ALIGN_16_BYTE);
9658         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9659                                               LPFC_ALIGN_16_BYTE);
9660
9661         /*
9662          * Set the high and low physical addresses now.  The SLI4 alignment
9663          * requirement is 16 bytes and the mailbox is posted to the port
9664          * as two 30-bit addresses.  The other data is a bit marking whether
9665          * the 30-bit address is the high or low address.
9666          * Upcast bmbx aphys to 64bits so shift instruction compiles
9667          * clean on 32 bit machines.
9668          */
9669         dma_address = &phba->sli4_hba.bmbx.dma_address;
9670         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9671         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9672         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9673                                            LPFC_BMBX_BIT1_ADDR_HI);
9674
9675         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9676         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9677                                            LPFC_BMBX_BIT1_ADDR_LO);
9678         return 0;
9679 }
9680
9681 /**
9682  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9683  * @phba: pointer to lpfc hba data structure.
9684  *
9685  * This routine is invoked to teardown the bootstrap mailbox
9686  * region and release all host resources. This routine requires
9687  * the caller to ensure all mailbox commands recovered, no
9688  * additional mailbox comands are sent, and interrupts are disabled
9689  * before calling this routine.
9690  *
9691  **/
9692 static void
9693 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9694 {
9695         dma_free_coherent(&phba->pcidev->dev,
9696                           phba->sli4_hba.bmbx.bmbx_size,
9697                           phba->sli4_hba.bmbx.dmabuf->virt,
9698                           phba->sli4_hba.bmbx.dmabuf->phys);
9699
9700         kfree(phba->sli4_hba.bmbx.dmabuf);
9701         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9702 }
9703
9704 static const char * const lpfc_topo_to_str[] = {
9705         "Loop then P2P",
9706         "Loopback",
9707         "P2P Only",
9708         "Unsupported",
9709         "Loop Only",
9710         "Unsupported",
9711         "P2P then Loop",
9712 };
9713
9714 #define LINK_FLAGS_DEF  0x0
9715 #define LINK_FLAGS_P2P  0x1
9716 #define LINK_FLAGS_LOOP 0x2
9717 /**
9718  * lpfc_map_topology - Map the topology read from READ_CONFIG
9719  * @phba: pointer to lpfc hba data structure.
9720  * @rd_config: pointer to read config data
9721  *
9722  * This routine is invoked to map the topology values as read
9723  * from the read config mailbox command. If the persistent
9724  * topology feature is supported, the firmware will provide the
9725  * saved topology information to be used in INIT_LINK
9726  **/
9727 static void
9728 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9729 {
9730         u8 ptv, tf, pt;
9731
9732         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9733         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9734         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9735
9736         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9737                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9738                          ptv, tf, pt);
9739         if (!ptv) {
9740                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9741                                 "2019 FW does not support persistent topology "
9742                                 "Using driver parameter defined value [%s]",
9743                                 lpfc_topo_to_str[phba->cfg_topology]);
9744                 return;
9745         }
9746         /* FW supports persistent topology - override module parameter value */
9747         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9748
9749         /* if ASIC_GEN_NUM >= 0xC) */
9750         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9751                     LPFC_SLI_INTF_IF_TYPE_6) ||
9752             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9753                     LPFC_SLI_INTF_FAMILY_G6)) {
9754                 if (!tf) {
9755                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9756                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9757                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9758                 } else {
9759                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9760                 }
9761         } else { /* G5 */
9762                 if (tf) {
9763                         /* If topology failover set - pt is '0' or '1' */
9764                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9765                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9766                 } else {
9767                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9768                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9769                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9770                 }
9771         }
9772         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9773                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9774                                 "2020 Using persistent topology value [%s]",
9775                                 lpfc_topo_to_str[phba->cfg_topology]);
9776         } else {
9777                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9778                                 "2021 Invalid topology values from FW "
9779                                 "Using driver parameter defined value [%s]",
9780                                 lpfc_topo_to_str[phba->cfg_topology]);
9781         }
9782 }
9783
9784 /**
9785  * lpfc_sli4_read_config - Get the config parameters.
9786  * @phba: pointer to lpfc hba data structure.
9787  *
9788  * This routine is invoked to read the configuration parameters from the HBA.
9789  * The configuration parameters are used to set the base and maximum values
9790  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9791  * allocation for the port.
9792  *
9793  * Return codes
9794  *      0 - successful
9795  *      -ENOMEM - No available memory
9796  *      -EIO - The mailbox failed to complete successfully.
9797  **/
9798 int
9799 lpfc_sli4_read_config(struct lpfc_hba *phba)
9800 {
9801         LPFC_MBOXQ_t *pmb;
9802         struct lpfc_mbx_read_config *rd_config;
9803         union  lpfc_sli4_cfg_shdr *shdr;
9804         uint32_t shdr_status, shdr_add_status;
9805         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9806         struct lpfc_rsrc_desc_fcfcoe *desc;
9807         char *pdesc_0;
9808         uint16_t forced_link_speed;
9809         uint32_t if_type, qmin;
9810         int length, i, rc = 0, rc2;
9811
9812         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9813         if (!pmb) {
9814                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9815                                 "2011 Unable to allocate memory for issuing "
9816                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9817                 return -ENOMEM;
9818         }
9819
9820         lpfc_read_config(phba, pmb);
9821
9822         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9823         if (rc != MBX_SUCCESS) {
9824                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9825                                 "2012 Mailbox failed , mbxCmd x%x "
9826                                 "READ_CONFIG, mbxStatus x%x\n",
9827                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9828                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9829                 rc = -EIO;
9830         } else {
9831                 rd_config = &pmb->u.mqe.un.rd_config;
9832                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9833                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9834                         phba->sli4_hba.lnk_info.lnk_tp =
9835                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9836                         phba->sli4_hba.lnk_info.lnk_no =
9837                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9838                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9839                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9840                                         phba->sli4_hba.lnk_info.lnk_tp,
9841                                         phba->sli4_hba.lnk_info.lnk_no);
9842                 } else
9843                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9844                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9845                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9846                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9847                         phba->bbcredit_support = 1;
9848                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9849                 }
9850
9851                 phba->sli4_hba.conf_trunk =
9852                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9853                 phba->sli4_hba.extents_in_use =
9854                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9855                 phba->sli4_hba.max_cfg_param.max_xri =
9856                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9857                 /* Reduce resource usage in kdump environment */
9858                 if (is_kdump_kernel() &&
9859                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9860                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9861                 phba->sli4_hba.max_cfg_param.xri_base =
9862                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9863                 phba->sli4_hba.max_cfg_param.max_vpi =
9864                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9865                 /* Limit the max we support */
9866                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9867                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9868                 phba->sli4_hba.max_cfg_param.vpi_base =
9869                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9870                 phba->sli4_hba.max_cfg_param.max_rpi =
9871                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9872                 phba->sli4_hba.max_cfg_param.rpi_base =
9873                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9874                 phba->sli4_hba.max_cfg_param.max_vfi =
9875                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9876                 phba->sli4_hba.max_cfg_param.vfi_base =
9877                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9878                 phba->sli4_hba.max_cfg_param.max_fcfi =
9879                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9880                 phba->sli4_hba.max_cfg_param.max_eq =
9881                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9882                 phba->sli4_hba.max_cfg_param.max_rq =
9883                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9884                 phba->sli4_hba.max_cfg_param.max_wq =
9885                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9886                 phba->sli4_hba.max_cfg_param.max_cq =
9887                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9888                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9889                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9890                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9891                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9892                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9893                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9894                 phba->max_vports = phba->max_vpi;
9895
9896                 /* Next decide on FPIN or Signal E2E CGN support
9897                  * For congestion alarms and warnings valid combination are:
9898                  * 1. FPIN alarms / FPIN warnings
9899                  * 2. Signal alarms / Signal warnings
9900                  * 3. FPIN alarms / Signal warnings
9901                  * 4. Signal alarms / FPIN warnings
9902                  *
9903                  * Initialize the adapter frequency to 100 mSecs
9904                  */
9905                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9906                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9907                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9908
9909                 if (lpfc_use_cgn_signal) {
9910                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9911                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9912                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9913                         }
9914                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9915                                 /* MUST support both alarm and warning
9916                                  * because EDC does not support alarm alone.
9917                                  */
9918                                 if (phba->cgn_reg_signal !=
9919                                     EDC_CG_SIG_WARN_ONLY) {
9920                                         /* Must support both or none */
9921                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9922                                         phba->cgn_reg_signal =
9923                                                 EDC_CG_SIG_NOTSUPPORTED;
9924                                 } else {
9925                                         phba->cgn_reg_signal =
9926                                                 EDC_CG_SIG_WARN_ALARM;
9927                                         phba->cgn_reg_fpin =
9928                                                 LPFC_CGN_FPIN_NONE;
9929                                 }
9930                         }
9931                 }
9932
9933                 /* Set the congestion initial signal and fpin values. */
9934                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9935                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9936
9937                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9938                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9939                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9940
9941                 lpfc_map_topology(phba, rd_config);
9942                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9943                                 "2003 cfg params Extents? %d "
9944                                 "XRI(B:%d M:%d), "
9945                                 "VPI(B:%d M:%d) "
9946                                 "VFI(B:%d M:%d) "
9947                                 "RPI(B:%d M:%d) "
9948                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9949                                 phba->sli4_hba.extents_in_use,
9950                                 phba->sli4_hba.max_cfg_param.xri_base,
9951                                 phba->sli4_hba.max_cfg_param.max_xri,
9952                                 phba->sli4_hba.max_cfg_param.vpi_base,
9953                                 phba->sli4_hba.max_cfg_param.max_vpi,
9954                                 phba->sli4_hba.max_cfg_param.vfi_base,
9955                                 phba->sli4_hba.max_cfg_param.max_vfi,
9956                                 phba->sli4_hba.max_cfg_param.rpi_base,
9957                                 phba->sli4_hba.max_cfg_param.max_rpi,
9958                                 phba->sli4_hba.max_cfg_param.max_fcfi,
9959                                 phba->sli4_hba.max_cfg_param.max_eq,
9960                                 phba->sli4_hba.max_cfg_param.max_cq,
9961                                 phba->sli4_hba.max_cfg_param.max_wq,
9962                                 phba->sli4_hba.max_cfg_param.max_rq,
9963                                 phba->lmt);
9964
9965                 /*
9966                  * Calculate queue resources based on how
9967                  * many WQ/CQ/EQs are available.
9968                  */
9969                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9970                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9971                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
9972                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9973                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
9974                 /*
9975                  * Whats left after this can go toward NVME / FCP.
9976                  * The minus 4 accounts for ELS, NVME LS, MBOX
9977                  * plus one extra. When configured for
9978                  * NVMET, FCP io channel WQs are not created.
9979                  */
9980                 qmin -= 4;
9981
9982                 /* Check to see if there is enough for NVME */
9983                 if ((phba->cfg_irq_chann > qmin) ||
9984                     (phba->cfg_hdw_queue > qmin)) {
9985                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9986                                         "2005 Reducing Queues - "
9987                                         "FW resource limitation: "
9988                                         "WQ %d CQ %d EQ %d: min %d: "
9989                                         "IRQ %d HDWQ %d\n",
9990                                         phba->sli4_hba.max_cfg_param.max_wq,
9991                                         phba->sli4_hba.max_cfg_param.max_cq,
9992                                         phba->sli4_hba.max_cfg_param.max_eq,
9993                                         qmin, phba->cfg_irq_chann,
9994                                         phba->cfg_hdw_queue);
9995
9996                         if (phba->cfg_irq_chann > qmin)
9997                                 phba->cfg_irq_chann = qmin;
9998                         if (phba->cfg_hdw_queue > qmin)
9999                                 phba->cfg_hdw_queue = qmin;
10000                 }
10001         }
10002
10003         if (rc)
10004                 goto read_cfg_out;
10005
10006         /* Update link speed if forced link speed is supported */
10007         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10008         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
10009                 forced_link_speed =
10010                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
10011                 if (forced_link_speed) {
10012                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
10013
10014                         switch (forced_link_speed) {
10015                         case LINK_SPEED_1G:
10016                                 phba->cfg_link_speed =
10017                                         LPFC_USER_LINK_SPEED_1G;
10018                                 break;
10019                         case LINK_SPEED_2G:
10020                                 phba->cfg_link_speed =
10021                                         LPFC_USER_LINK_SPEED_2G;
10022                                 break;
10023                         case LINK_SPEED_4G:
10024                                 phba->cfg_link_speed =
10025                                         LPFC_USER_LINK_SPEED_4G;
10026                                 break;
10027                         case LINK_SPEED_8G:
10028                                 phba->cfg_link_speed =
10029                                         LPFC_USER_LINK_SPEED_8G;
10030                                 break;
10031                         case LINK_SPEED_10G:
10032                                 phba->cfg_link_speed =
10033                                         LPFC_USER_LINK_SPEED_10G;
10034                                 break;
10035                         case LINK_SPEED_16G:
10036                                 phba->cfg_link_speed =
10037                                         LPFC_USER_LINK_SPEED_16G;
10038                                 break;
10039                         case LINK_SPEED_32G:
10040                                 phba->cfg_link_speed =
10041                                         LPFC_USER_LINK_SPEED_32G;
10042                                 break;
10043                         case LINK_SPEED_64G:
10044                                 phba->cfg_link_speed =
10045                                         LPFC_USER_LINK_SPEED_64G;
10046                                 break;
10047                         case 0xffff:
10048                                 phba->cfg_link_speed =
10049                                         LPFC_USER_LINK_SPEED_AUTO;
10050                                 break;
10051                         default:
10052                                 lpfc_printf_log(phba, KERN_ERR,
10053                                                 LOG_TRACE_EVENT,
10054                                                 "0047 Unrecognized link "
10055                                                 "speed : %d\n",
10056                                                 forced_link_speed);
10057                                 phba->cfg_link_speed =
10058                                         LPFC_USER_LINK_SPEED_AUTO;
10059                         }
10060                 }
10061         }
10062
10063         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
10064         length = phba->sli4_hba.max_cfg_param.max_xri -
10065                         lpfc_sli4_get_els_iocb_cnt(phba);
10066         if (phba->cfg_hba_queue_depth > length) {
10067                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10068                                 "3361 HBA queue depth changed from %d to %d\n",
10069                                 phba->cfg_hba_queue_depth, length);
10070                 phba->cfg_hba_queue_depth = length;
10071         }
10072
10073         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
10074             LPFC_SLI_INTF_IF_TYPE_2)
10075                 goto read_cfg_out;
10076
10077         /* get the pf# and vf# for SLI4 if_type 2 port */
10078         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
10079                   sizeof(struct lpfc_sli4_cfg_mhdr));
10080         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
10081                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
10082                          length, LPFC_SLI4_MBX_EMBED);
10083
10084         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
10085         shdr = (union lpfc_sli4_cfg_shdr *)
10086                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10087         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10088         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10089         if (rc2 || shdr_status || shdr_add_status) {
10090                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10091                                 "3026 Mailbox failed , mbxCmd x%x "
10092                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10093                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10094                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10095                 goto read_cfg_out;
10096         }
10097
10098         /* search for fc_fcoe resrouce descriptor */
10099         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10100
10101         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10102         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10103         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10104         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10105                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10106         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10107                 goto read_cfg_out;
10108
10109         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10110                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10111                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10112                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10113                         phba->sli4_hba.iov.pf_number =
10114                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10115                         phba->sli4_hba.iov.vf_number =
10116                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10117                         break;
10118                 }
10119         }
10120
10121         if (i < LPFC_RSRC_DESC_MAX_NUM)
10122                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10123                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10124                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10125                                 phba->sli4_hba.iov.vf_number);
10126         else
10127                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10128                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10129                                 "Resource Descriptor:x%x\n",
10130                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10131
10132 read_cfg_out:
10133         mempool_free(pmb, phba->mbox_mem_pool);
10134         return rc;
10135 }
10136
10137 /**
10138  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10139  * @phba: pointer to lpfc hba data structure.
10140  *
10141  * This routine is invoked to setup the port-side endian order when
10142  * the port if_type is 0.  This routine has no function for other
10143  * if_types.
10144  *
10145  * Return codes
10146  *      0 - successful
10147  *      -ENOMEM - No available memory
10148  *      -EIO - The mailbox failed to complete successfully.
10149  **/
10150 static int
10151 lpfc_setup_endian_order(struct lpfc_hba *phba)
10152 {
10153         LPFC_MBOXQ_t *mboxq;
10154         uint32_t if_type, rc = 0;
10155         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10156                                       HOST_ENDIAN_HIGH_WORD1};
10157
10158         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10159         switch (if_type) {
10160         case LPFC_SLI_INTF_IF_TYPE_0:
10161                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10162                                                        GFP_KERNEL);
10163                 if (!mboxq) {
10164                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10165                                         "0492 Unable to allocate memory for "
10166                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10167                                         "command\n");
10168                         return -ENOMEM;
10169                 }
10170
10171                 /*
10172                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10173                  * two words to contain special data values and no other data.
10174                  */
10175                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10176                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10177                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10178                 if (rc != MBX_SUCCESS) {
10179                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10180                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10181                                         "failed with status x%x\n",
10182                                         rc);
10183                         rc = -EIO;
10184                 }
10185                 mempool_free(mboxq, phba->mbox_mem_pool);
10186                 break;
10187         case LPFC_SLI_INTF_IF_TYPE_6:
10188         case LPFC_SLI_INTF_IF_TYPE_2:
10189         case LPFC_SLI_INTF_IF_TYPE_1:
10190         default:
10191                 break;
10192         }
10193         return rc;
10194 }
10195
10196 /**
10197  * lpfc_sli4_queue_verify - Verify and update EQ counts
10198  * @phba: pointer to lpfc hba data structure.
10199  *
10200  * This routine is invoked to check the user settable queue counts for EQs.
10201  * After this routine is called the counts will be set to valid values that
10202  * adhere to the constraints of the system's interrupt vectors and the port's
10203  * queue resources.
10204  *
10205  * Return codes
10206  *      0 - successful
10207  *      -ENOMEM - No available memory
10208  **/
10209 static int
10210 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10211 {
10212         /*
10213          * Sanity check for configured queue parameters against the run-time
10214          * device parameters
10215          */
10216
10217         if (phba->nvmet_support) {
10218                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10219                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10220                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10221                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10222         }
10223
10224         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10225                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10226                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10227                         phba->cfg_nvmet_mrq);
10228
10229         /* Get EQ depth from module parameter, fake the default for now */
10230         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10231         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10232
10233         /* Get CQ depth from module parameter, fake the default for now */
10234         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10235         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10236         return 0;
10237 }
10238
10239 static int
10240 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10241 {
10242         struct lpfc_queue *qdesc;
10243         u32 wqesize;
10244         int cpu;
10245
10246         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10247         /* Create Fast Path IO CQs */
10248         if (phba->enab_exp_wqcq_pages)
10249                 /* Increase the CQ size when WQEs contain an embedded cdb */
10250                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10251                                               phba->sli4_hba.cq_esize,
10252                                               LPFC_CQE_EXP_COUNT, cpu);
10253
10254         else
10255                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10256                                               phba->sli4_hba.cq_esize,
10257                                               phba->sli4_hba.cq_ecount, cpu);
10258         if (!qdesc) {
10259                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10260                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10261                                 idx);
10262                 return 1;
10263         }
10264         qdesc->qe_valid = 1;
10265         qdesc->hdwq = idx;
10266         qdesc->chann = cpu;
10267         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10268
10269         /* Create Fast Path IO WQs */
10270         if (phba->enab_exp_wqcq_pages) {
10271                 /* Increase the WQ size when WQEs contain an embedded cdb */
10272                 wqesize = (phba->fcp_embed_io) ?
10273                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10274                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10275                                               wqesize,
10276                                               LPFC_WQE_EXP_COUNT, cpu);
10277         } else
10278                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10279                                               phba->sli4_hba.wq_esize,
10280                                               phba->sli4_hba.wq_ecount, cpu);
10281
10282         if (!qdesc) {
10283                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10284                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10285                                 idx);
10286                 return 1;
10287         }
10288         qdesc->hdwq = idx;
10289         qdesc->chann = cpu;
10290         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10291         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10292         return 0;
10293 }
10294
10295 /**
10296  * lpfc_sli4_queue_create - Create all the SLI4 queues
10297  * @phba: pointer to lpfc hba data structure.
10298  *
10299  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10300  * operation. For each SLI4 queue type, the parameters such as queue entry
10301  * count (queue depth) shall be taken from the module parameter. For now,
10302  * we just use some constant number as place holder.
10303  *
10304  * Return codes
10305  *      0 - successful
10306  *      -ENOMEM - No availble memory
10307  *      -EIO - The mailbox failed to complete successfully.
10308  **/
10309 int
10310 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10311 {
10312         struct lpfc_queue *qdesc;
10313         int idx, cpu, eqcpu;
10314         struct lpfc_sli4_hdw_queue *qp;
10315         struct lpfc_vector_map_info *cpup;
10316         struct lpfc_vector_map_info *eqcpup;
10317         struct lpfc_eq_intr_info *eqi;
10318
10319         /*
10320          * Create HBA Record arrays.
10321          * Both NVME and FCP will share that same vectors / EQs
10322          */
10323         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10324         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10325         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10326         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10327         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10328         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10329         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10330         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10331         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10332         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10333
10334         if (!phba->sli4_hba.hdwq) {
10335                 phba->sli4_hba.hdwq = kcalloc(
10336                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10337                         GFP_KERNEL);
10338                 if (!phba->sli4_hba.hdwq) {
10339                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10340                                         "6427 Failed allocate memory for "
10341                                         "fast-path Hardware Queue array\n");
10342                         goto out_error;
10343                 }
10344                 /* Prepare hardware queues to take IO buffers */
10345                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10346                         qp = &phba->sli4_hba.hdwq[idx];
10347                         spin_lock_init(&qp->io_buf_list_get_lock);
10348                         spin_lock_init(&qp->io_buf_list_put_lock);
10349                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10350                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10351                         qp->get_io_bufs = 0;
10352                         qp->put_io_bufs = 0;
10353                         qp->total_io_bufs = 0;
10354                         spin_lock_init(&qp->abts_io_buf_list_lock);
10355                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10356                         qp->abts_scsi_io_bufs = 0;
10357                         qp->abts_nvme_io_bufs = 0;
10358                         INIT_LIST_HEAD(&qp->sgl_list);
10359                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10360                         spin_lock_init(&qp->hdwq_lock);
10361                 }
10362         }
10363
10364         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10365                 if (phba->nvmet_support) {
10366                         phba->sli4_hba.nvmet_cqset = kcalloc(
10367                                         phba->cfg_nvmet_mrq,
10368                                         sizeof(struct lpfc_queue *),
10369                                         GFP_KERNEL);
10370                         if (!phba->sli4_hba.nvmet_cqset) {
10371                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10372                                         "3121 Fail allocate memory for "
10373                                         "fast-path CQ set array\n");
10374                                 goto out_error;
10375                         }
10376                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10377                                         phba->cfg_nvmet_mrq,
10378                                         sizeof(struct lpfc_queue *),
10379                                         GFP_KERNEL);
10380                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10381                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10382                                         "3122 Fail allocate memory for "
10383                                         "fast-path RQ set hdr array\n");
10384                                 goto out_error;
10385                         }
10386                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10387                                         phba->cfg_nvmet_mrq,
10388                                         sizeof(struct lpfc_queue *),
10389                                         GFP_KERNEL);
10390                         if (!phba->sli4_hba.nvmet_mrq_data) {
10391                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10392                                         "3124 Fail allocate memory for "
10393                                         "fast-path RQ set data array\n");
10394                                 goto out_error;
10395                         }
10396                 }
10397         }
10398
10399         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10400
10401         /* Create HBA Event Queues (EQs) */
10402         for_each_present_cpu(cpu) {
10403                 /* We only want to create 1 EQ per vector, even though
10404                  * multiple CPUs might be using that vector. so only
10405                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10406                  */
10407                 cpup = &phba->sli4_hba.cpu_map[cpu];
10408                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10409                         continue;
10410
10411                 /* Get a ptr to the Hardware Queue associated with this CPU */
10412                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10413
10414                 /* Allocate an EQ */
10415                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10416                                               phba->sli4_hba.eq_esize,
10417                                               phba->sli4_hba.eq_ecount, cpu);
10418                 if (!qdesc) {
10419                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10420                                         "0497 Failed allocate EQ (%d)\n",
10421                                         cpup->hdwq);
10422                         goto out_error;
10423                 }
10424                 qdesc->qe_valid = 1;
10425                 qdesc->hdwq = cpup->hdwq;
10426                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10427                 qdesc->last_cpu = qdesc->chann;
10428
10429                 /* Save the allocated EQ in the Hardware Queue */
10430                 qp->hba_eq = qdesc;
10431
10432                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10433                 list_add(&qdesc->cpu_list, &eqi->list);
10434         }
10435
10436         /* Now we need to populate the other Hardware Queues, that share
10437          * an IRQ vector, with the associated EQ ptr.
10438          */
10439         for_each_present_cpu(cpu) {
10440                 cpup = &phba->sli4_hba.cpu_map[cpu];
10441
10442                 /* Check for EQ already allocated in previous loop */
10443                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10444                         continue;
10445
10446                 /* Check for multiple CPUs per hdwq */
10447                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10448                 if (qp->hba_eq)
10449                         continue;
10450
10451                 /* We need to share an EQ for this hdwq */
10452                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10453                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10454                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10455         }
10456
10457         /* Allocate IO Path SLI4 CQ/WQs */
10458         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10459                 if (lpfc_alloc_io_wq_cq(phba, idx))
10460                         goto out_error;
10461         }
10462
10463         if (phba->nvmet_support) {
10464                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10465                         cpu = lpfc_find_cpu_handle(phba, idx,
10466                                                    LPFC_FIND_BY_HDWQ);
10467                         qdesc = lpfc_sli4_queue_alloc(phba,
10468                                                       LPFC_DEFAULT_PAGE_SIZE,
10469                                                       phba->sli4_hba.cq_esize,
10470                                                       phba->sli4_hba.cq_ecount,
10471                                                       cpu);
10472                         if (!qdesc) {
10473                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10474                                                 "3142 Failed allocate NVME "
10475                                                 "CQ Set (%d)\n", idx);
10476                                 goto out_error;
10477                         }
10478                         qdesc->qe_valid = 1;
10479                         qdesc->hdwq = idx;
10480                         qdesc->chann = cpu;
10481                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10482                 }
10483         }
10484
10485         /*
10486          * Create Slow Path Completion Queues (CQs)
10487          */
10488
10489         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10490         /* Create slow-path Mailbox Command Complete Queue */
10491         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10492                                       phba->sli4_hba.cq_esize,
10493                                       phba->sli4_hba.cq_ecount, cpu);
10494         if (!qdesc) {
10495                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10496                                 "0500 Failed allocate slow-path mailbox CQ\n");
10497                 goto out_error;
10498         }
10499         qdesc->qe_valid = 1;
10500         phba->sli4_hba.mbx_cq = qdesc;
10501
10502         /* Create slow-path ELS Complete Queue */
10503         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10504                                       phba->sli4_hba.cq_esize,
10505                                       phba->sli4_hba.cq_ecount, cpu);
10506         if (!qdesc) {
10507                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10508                                 "0501 Failed allocate slow-path ELS CQ\n");
10509                 goto out_error;
10510         }
10511         qdesc->qe_valid = 1;
10512         qdesc->chann = cpu;
10513         phba->sli4_hba.els_cq = qdesc;
10514
10515
10516         /*
10517          * Create Slow Path Work Queues (WQs)
10518          */
10519
10520         /* Create Mailbox Command Queue */
10521
10522         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10523                                       phba->sli4_hba.mq_esize,
10524                                       phba->sli4_hba.mq_ecount, cpu);
10525         if (!qdesc) {
10526                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10527                                 "0505 Failed allocate slow-path MQ\n");
10528                 goto out_error;
10529         }
10530         qdesc->chann = cpu;
10531         phba->sli4_hba.mbx_wq = qdesc;
10532
10533         /*
10534          * Create ELS Work Queues
10535          */
10536
10537         /* Create slow-path ELS Work Queue */
10538         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10539                                       phba->sli4_hba.wq_esize,
10540                                       phba->sli4_hba.wq_ecount, cpu);
10541         if (!qdesc) {
10542                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10543                                 "0504 Failed allocate slow-path ELS WQ\n");
10544                 goto out_error;
10545         }
10546         qdesc->chann = cpu;
10547         phba->sli4_hba.els_wq = qdesc;
10548         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10549
10550         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10551                 /* Create NVME LS Complete Queue */
10552                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10553                                               phba->sli4_hba.cq_esize,
10554                                               phba->sli4_hba.cq_ecount, cpu);
10555                 if (!qdesc) {
10556                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10557                                         "6079 Failed allocate NVME LS CQ\n");
10558                         goto out_error;
10559                 }
10560                 qdesc->chann = cpu;
10561                 qdesc->qe_valid = 1;
10562                 phba->sli4_hba.nvmels_cq = qdesc;
10563
10564                 /* Create NVME LS Work Queue */
10565                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10566                                               phba->sli4_hba.wq_esize,
10567                                               phba->sli4_hba.wq_ecount, cpu);
10568                 if (!qdesc) {
10569                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10570                                         "6080 Failed allocate NVME LS WQ\n");
10571                         goto out_error;
10572                 }
10573                 qdesc->chann = cpu;
10574                 phba->sli4_hba.nvmels_wq = qdesc;
10575                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10576         }
10577
10578         /*
10579          * Create Receive Queue (RQ)
10580          */
10581
10582         /* Create Receive Queue for header */
10583         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10584                                       phba->sli4_hba.rq_esize,
10585                                       phba->sli4_hba.rq_ecount, cpu);
10586         if (!qdesc) {
10587                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10588                                 "0506 Failed allocate receive HRQ\n");
10589                 goto out_error;
10590         }
10591         phba->sli4_hba.hdr_rq = qdesc;
10592
10593         /* Create Receive Queue for data */
10594         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10595                                       phba->sli4_hba.rq_esize,
10596                                       phba->sli4_hba.rq_ecount, cpu);
10597         if (!qdesc) {
10598                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10599                                 "0507 Failed allocate receive DRQ\n");
10600                 goto out_error;
10601         }
10602         phba->sli4_hba.dat_rq = qdesc;
10603
10604         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10605             phba->nvmet_support) {
10606                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10607                         cpu = lpfc_find_cpu_handle(phba, idx,
10608                                                    LPFC_FIND_BY_HDWQ);
10609                         /* Create NVMET Receive Queue for header */
10610                         qdesc = lpfc_sli4_queue_alloc(phba,
10611                                                       LPFC_DEFAULT_PAGE_SIZE,
10612                                                       phba->sli4_hba.rq_esize,
10613                                                       LPFC_NVMET_RQE_DEF_COUNT,
10614                                                       cpu);
10615                         if (!qdesc) {
10616                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10617                                                 "3146 Failed allocate "
10618                                                 "receive HRQ\n");
10619                                 goto out_error;
10620                         }
10621                         qdesc->hdwq = idx;
10622                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10623
10624                         /* Only needed for header of RQ pair */
10625                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10626                                                    GFP_KERNEL,
10627                                                    cpu_to_node(cpu));
10628                         if (qdesc->rqbp == NULL) {
10629                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10630                                                 "6131 Failed allocate "
10631                                                 "Header RQBP\n");
10632                                 goto out_error;
10633                         }
10634
10635                         /* Put list in known state in case driver load fails. */
10636                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10637
10638                         /* Create NVMET Receive Queue for data */
10639                         qdesc = lpfc_sli4_queue_alloc(phba,
10640                                                       LPFC_DEFAULT_PAGE_SIZE,
10641                                                       phba->sli4_hba.rq_esize,
10642                                                       LPFC_NVMET_RQE_DEF_COUNT,
10643                                                       cpu);
10644                         if (!qdesc) {
10645                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10646                                                 "3156 Failed allocate "
10647                                                 "receive DRQ\n");
10648                                 goto out_error;
10649                         }
10650                         qdesc->hdwq = idx;
10651                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10652                 }
10653         }
10654
10655         /* Clear NVME stats */
10656         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10657                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10658                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10659                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10660                 }
10661         }
10662
10663         /* Clear SCSI stats */
10664         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10665                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10666                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10667                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10668                 }
10669         }
10670
10671         return 0;
10672
10673 out_error:
10674         lpfc_sli4_queue_destroy(phba);
10675         return -ENOMEM;
10676 }
10677
10678 static inline void
10679 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10680 {
10681         if (*qp != NULL) {
10682                 lpfc_sli4_queue_free(*qp);
10683                 *qp = NULL;
10684         }
10685 }
10686
10687 static inline void
10688 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10689 {
10690         int idx;
10691
10692         if (*qs == NULL)
10693                 return;
10694
10695         for (idx = 0; idx < max; idx++)
10696                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10697
10698         kfree(*qs);
10699         *qs = NULL;
10700 }
10701
10702 static inline void
10703 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10704 {
10705         struct lpfc_sli4_hdw_queue *hdwq;
10706         struct lpfc_queue *eq;
10707         uint32_t idx;
10708
10709         hdwq = phba->sli4_hba.hdwq;
10710
10711         /* Loop thru all Hardware Queues */
10712         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10713                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10714                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10715                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10716                 hdwq[idx].hba_eq = NULL;
10717                 hdwq[idx].io_cq = NULL;
10718                 hdwq[idx].io_wq = NULL;
10719                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10720                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10721                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10722         }
10723         /* Loop thru all IRQ vectors */
10724         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10725                 /* Free the EQ corresponding to the IRQ vector */
10726                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10727                 lpfc_sli4_queue_free(eq);
10728                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10729         }
10730 }
10731
10732 /**
10733  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10734  * @phba: pointer to lpfc hba data structure.
10735  *
10736  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10737  * operation.
10738  *
10739  * Return codes
10740  *      0 - successful
10741  *      -ENOMEM - No available memory
10742  *      -EIO - The mailbox failed to complete successfully.
10743  **/
10744 void
10745 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10746 {
10747         /*
10748          * Set FREE_INIT before beginning to free the queues.
10749          * Wait until the users of queues to acknowledge to
10750          * release queues by clearing FREE_WAIT.
10751          */
10752         spin_lock_irq(&phba->hbalock);
10753         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10754         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10755                 spin_unlock_irq(&phba->hbalock);
10756                 msleep(20);
10757                 spin_lock_irq(&phba->hbalock);
10758         }
10759         spin_unlock_irq(&phba->hbalock);
10760
10761         lpfc_sli4_cleanup_poll_list(phba);
10762
10763         /* Release HBA eqs */
10764         if (phba->sli4_hba.hdwq)
10765                 lpfc_sli4_release_hdwq(phba);
10766
10767         if (phba->nvmet_support) {
10768                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10769                                          phba->cfg_nvmet_mrq);
10770
10771                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10772                                          phba->cfg_nvmet_mrq);
10773                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10774                                          phba->cfg_nvmet_mrq);
10775         }
10776
10777         /* Release mailbox command work queue */
10778         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10779
10780         /* Release ELS work queue */
10781         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10782
10783         /* Release ELS work queue */
10784         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10785
10786         /* Release unsolicited receive queue */
10787         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10788         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10789
10790         /* Release ELS complete queue */
10791         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10792
10793         /* Release NVME LS complete queue */
10794         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10795
10796         /* Release mailbox command complete queue */
10797         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10798
10799         /* Everything on this list has been freed */
10800         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10801
10802         /* Done with freeing the queues */
10803         spin_lock_irq(&phba->hbalock);
10804         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10805         spin_unlock_irq(&phba->hbalock);
10806 }
10807
10808 int
10809 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10810 {
10811         struct lpfc_rqb *rqbp;
10812         struct lpfc_dmabuf *h_buf;
10813         struct rqb_dmabuf *rqb_buffer;
10814
10815         rqbp = rq->rqbp;
10816         while (!list_empty(&rqbp->rqb_buffer_list)) {
10817                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10818                                  struct lpfc_dmabuf, list);
10819
10820                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10821                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10822                 rqbp->buffer_count--;
10823         }
10824         return 1;
10825 }
10826
10827 static int
10828 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10829         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10830         int qidx, uint32_t qtype)
10831 {
10832         struct lpfc_sli_ring *pring;
10833         int rc;
10834
10835         if (!eq || !cq || !wq) {
10836                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10837                         "6085 Fast-path %s (%d) not allocated\n",
10838                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10839                 return -ENOMEM;
10840         }
10841
10842         /* create the Cq first */
10843         rc = lpfc_cq_create(phba, cq, eq,
10844                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10845         if (rc) {
10846                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10847                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10848                                 qidx, (uint32_t)rc);
10849                 return rc;
10850         }
10851
10852         if (qtype != LPFC_MBOX) {
10853                 /* Setup cq_map for fast lookup */
10854                 if (cq_map)
10855                         *cq_map = cq->queue_id;
10856
10857                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10858                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10859                         qidx, cq->queue_id, qidx, eq->queue_id);
10860
10861                 /* create the wq */
10862                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10863                 if (rc) {
10864                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10865                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10866                                 qidx, (uint32_t)rc);
10867                         /* no need to tear down cq - caller will do so */
10868                         return rc;
10869                 }
10870
10871                 /* Bind this CQ/WQ to the NVME ring */
10872                 pring = wq->pring;
10873                 pring->sli.sli4.wqp = (void *)wq;
10874                 cq->pring = pring;
10875
10876                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10877                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10878                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10879         } else {
10880                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10881                 if (rc) {
10882                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10883                                         "0539 Failed setup of slow-path MQ: "
10884                                         "rc = 0x%x\n", rc);
10885                         /* no need to tear down cq - caller will do so */
10886                         return rc;
10887                 }
10888
10889                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10890                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10891                         phba->sli4_hba.mbx_wq->queue_id,
10892                         phba->sli4_hba.mbx_cq->queue_id);
10893         }
10894
10895         return 0;
10896 }
10897
10898 /**
10899  * lpfc_setup_cq_lookup - Setup the CQ lookup table
10900  * @phba: pointer to lpfc hba data structure.
10901  *
10902  * This routine will populate the cq_lookup table by all
10903  * available CQ queue_id's.
10904  **/
10905 static void
10906 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10907 {
10908         struct lpfc_queue *eq, *childq;
10909         int qidx;
10910
10911         memset(phba->sli4_hba.cq_lookup, 0,
10912                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10913         /* Loop thru all IRQ vectors */
10914         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10915                 /* Get the EQ corresponding to the IRQ vector */
10916                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10917                 if (!eq)
10918                         continue;
10919                 /* Loop through all CQs associated with that EQ */
10920                 list_for_each_entry(childq, &eq->child_list, list) {
10921                         if (childq->queue_id > phba->sli4_hba.cq_max)
10922                                 continue;
10923                         if (childq->subtype == LPFC_IO)
10924                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
10925                                         childq;
10926                 }
10927         }
10928 }
10929
10930 /**
10931  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10932  * @phba: pointer to lpfc hba data structure.
10933  *
10934  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10935  * operation.
10936  *
10937  * Return codes
10938  *      0 - successful
10939  *      -ENOMEM - No available memory
10940  *      -EIO - The mailbox failed to complete successfully.
10941  **/
10942 int
10943 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10944 {
10945         uint32_t shdr_status, shdr_add_status;
10946         union lpfc_sli4_cfg_shdr *shdr;
10947         struct lpfc_vector_map_info *cpup;
10948         struct lpfc_sli4_hdw_queue *qp;
10949         LPFC_MBOXQ_t *mboxq;
10950         int qidx, cpu;
10951         uint32_t length, usdelay;
10952         int rc = -ENOMEM;
10953
10954         /* Check for dual-ULP support */
10955         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10956         if (!mboxq) {
10957                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10958                                 "3249 Unable to allocate memory for "
10959                                 "QUERY_FW_CFG mailbox command\n");
10960                 return -ENOMEM;
10961         }
10962         length = (sizeof(struct lpfc_mbx_query_fw_config) -
10963                   sizeof(struct lpfc_sli4_cfg_mhdr));
10964         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10965                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10966                          length, LPFC_SLI4_MBX_EMBED);
10967
10968         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10969
10970         shdr = (union lpfc_sli4_cfg_shdr *)
10971                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10972         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10973         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10974         if (shdr_status || shdr_add_status || rc) {
10975                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10976                                 "3250 QUERY_FW_CFG mailbox failed with status "
10977                                 "x%x add_status x%x, mbx status x%x\n",
10978                                 shdr_status, shdr_add_status, rc);
10979                 mempool_free(mboxq, phba->mbox_mem_pool);
10980                 rc = -ENXIO;
10981                 goto out_error;
10982         }
10983
10984         phba->sli4_hba.fw_func_mode =
10985                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10986         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
10987         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
10988         phba->sli4_hba.physical_port =
10989                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
10990         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10991                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
10992                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
10993                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
10994
10995         mempool_free(mboxq, phba->mbox_mem_pool);
10996
10997         /*
10998          * Set up HBA Event Queues (EQs)
10999          */
11000         qp = phba->sli4_hba.hdwq;
11001
11002         /* Set up HBA event queue */
11003         if (!qp) {
11004                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11005                                 "3147 Fast-path EQs not allocated\n");
11006                 rc = -ENOMEM;
11007                 goto out_error;
11008         }
11009
11010         /* Loop thru all IRQ vectors */
11011         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11012                 /* Create HBA Event Queues (EQs) in order */
11013                 for_each_present_cpu(cpu) {
11014                         cpup = &phba->sli4_hba.cpu_map[cpu];
11015
11016                         /* Look for the CPU thats using that vector with
11017                          * LPFC_CPU_FIRST_IRQ set.
11018                          */
11019                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
11020                                 continue;
11021                         if (qidx != cpup->eq)
11022                                 continue;
11023
11024                         /* Create an EQ for that vector */
11025                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
11026                                             phba->cfg_fcp_imax);
11027                         if (rc) {
11028                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11029                                                 "0523 Failed setup of fast-path"
11030                                                 " EQ (%d), rc = 0x%x\n",
11031                                                 cpup->eq, (uint32_t)rc);
11032                                 goto out_destroy;
11033                         }
11034
11035                         /* Save the EQ for that vector in the hba_eq_hdl */
11036                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
11037                                 qp[cpup->hdwq].hba_eq;
11038
11039                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11040                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
11041                                         cpup->eq,
11042                                         qp[cpup->hdwq].hba_eq->queue_id);
11043                 }
11044         }
11045
11046         /* Loop thru all Hardware Queues */
11047         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11048                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
11049                 cpup = &phba->sli4_hba.cpu_map[cpu];
11050
11051                 /* Create the CQ/WQ corresponding to the Hardware Queue */
11052                 rc = lpfc_create_wq_cq(phba,
11053                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
11054                                        qp[qidx].io_cq,
11055                                        qp[qidx].io_wq,
11056                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
11057                                        qidx,
11058                                        LPFC_IO);
11059                 if (rc) {
11060                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11061                                         "0535 Failed to setup fastpath "
11062                                         "IO WQ/CQ (%d), rc = 0x%x\n",
11063                                         qidx, (uint32_t)rc);
11064                         goto out_destroy;
11065                 }
11066         }
11067
11068         /*
11069          * Set up Slow Path Complete Queues (CQs)
11070          */
11071
11072         /* Set up slow-path MBOX CQ/MQ */
11073
11074         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
11075                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11076                                 "0528 %s not allocated\n",
11077                                 phba->sli4_hba.mbx_cq ?
11078                                 "Mailbox WQ" : "Mailbox CQ");
11079                 rc = -ENOMEM;
11080                 goto out_destroy;
11081         }
11082
11083         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11084                                phba->sli4_hba.mbx_cq,
11085                                phba->sli4_hba.mbx_wq,
11086                                NULL, 0, LPFC_MBOX);
11087         if (rc) {
11088                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11089                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11090                         (uint32_t)rc);
11091                 goto out_destroy;
11092         }
11093         if (phba->nvmet_support) {
11094                 if (!phba->sli4_hba.nvmet_cqset) {
11095                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11096                                         "3165 Fast-path NVME CQ Set "
11097                                         "array not allocated\n");
11098                         rc = -ENOMEM;
11099                         goto out_destroy;
11100                 }
11101                 if (phba->cfg_nvmet_mrq > 1) {
11102                         rc = lpfc_cq_create_set(phba,
11103                                         phba->sli4_hba.nvmet_cqset,
11104                                         qp,
11105                                         LPFC_WCQ, LPFC_NVMET);
11106                         if (rc) {
11107                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11108                                                 "3164 Failed setup of NVME CQ "
11109                                                 "Set, rc = 0x%x\n",
11110                                                 (uint32_t)rc);
11111                                 goto out_destroy;
11112                         }
11113                 } else {
11114                         /* Set up NVMET Receive Complete Queue */
11115                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11116                                             qp[0].hba_eq,
11117                                             LPFC_WCQ, LPFC_NVMET);
11118                         if (rc) {
11119                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11120                                                 "6089 Failed setup NVMET CQ: "
11121                                                 "rc = 0x%x\n", (uint32_t)rc);
11122                                 goto out_destroy;
11123                         }
11124                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11125
11126                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11127                                         "6090 NVMET CQ setup: cq-id=%d, "
11128                                         "parent eq-id=%d\n",
11129                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11130                                         qp[0].hba_eq->queue_id);
11131                 }
11132         }
11133
11134         /* Set up slow-path ELS WQ/CQ */
11135         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11136                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11137                                 "0530 ELS %s not allocated\n",
11138                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11139                 rc = -ENOMEM;
11140                 goto out_destroy;
11141         }
11142         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11143                                phba->sli4_hba.els_cq,
11144                                phba->sli4_hba.els_wq,
11145                                NULL, 0, LPFC_ELS);
11146         if (rc) {
11147                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11148                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11149                                 (uint32_t)rc);
11150                 goto out_destroy;
11151         }
11152         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11153                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11154                         phba->sli4_hba.els_wq->queue_id,
11155                         phba->sli4_hba.els_cq->queue_id);
11156
11157         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11158                 /* Set up NVME LS Complete Queue */
11159                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11160                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11161                                         "6091 LS %s not allocated\n",
11162                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11163                         rc = -ENOMEM;
11164                         goto out_destroy;
11165                 }
11166                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11167                                        phba->sli4_hba.nvmels_cq,
11168                                        phba->sli4_hba.nvmels_wq,
11169                                        NULL, 0, LPFC_NVME_LS);
11170                 if (rc) {
11171                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11172                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11173                                         "rc = 0x%x\n", (uint32_t)rc);
11174                         goto out_destroy;
11175                 }
11176
11177                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11178                                 "6096 ELS WQ setup: wq-id=%d, "
11179                                 "parent cq-id=%d\n",
11180                                 phba->sli4_hba.nvmels_wq->queue_id,
11181                                 phba->sli4_hba.nvmels_cq->queue_id);
11182         }
11183
11184         /*
11185          * Create NVMET Receive Queue (RQ)
11186          */
11187         if (phba->nvmet_support) {
11188                 if ((!phba->sli4_hba.nvmet_cqset) ||
11189                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11190                     (!phba->sli4_hba.nvmet_mrq_data)) {
11191                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11192                                         "6130 MRQ CQ Queues not "
11193                                         "allocated\n");
11194                         rc = -ENOMEM;
11195                         goto out_destroy;
11196                 }
11197                 if (phba->cfg_nvmet_mrq > 1) {
11198                         rc = lpfc_mrq_create(phba,
11199                                              phba->sli4_hba.nvmet_mrq_hdr,
11200                                              phba->sli4_hba.nvmet_mrq_data,
11201                                              phba->sli4_hba.nvmet_cqset,
11202                                              LPFC_NVMET);
11203                         if (rc) {
11204                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11205                                                 "6098 Failed setup of NVMET "
11206                                                 "MRQ: rc = 0x%x\n",
11207                                                 (uint32_t)rc);
11208                                 goto out_destroy;
11209                         }
11210
11211                 } else {
11212                         rc = lpfc_rq_create(phba,
11213                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11214                                             phba->sli4_hba.nvmet_mrq_data[0],
11215                                             phba->sli4_hba.nvmet_cqset[0],
11216                                             LPFC_NVMET);
11217                         if (rc) {
11218                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11219                                                 "6057 Failed setup of NVMET "
11220                                                 "Receive Queue: rc = 0x%x\n",
11221                                                 (uint32_t)rc);
11222                                 goto out_destroy;
11223                         }
11224
11225                         lpfc_printf_log(
11226                                 phba, KERN_INFO, LOG_INIT,
11227                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11228                                 "dat-rq-id=%d parent cq-id=%d\n",
11229                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11230                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11231                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11232
11233                 }
11234         }
11235
11236         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11237                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11238                                 "0540 Receive Queue not allocated\n");
11239                 rc = -ENOMEM;
11240                 goto out_destroy;
11241         }
11242
11243         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11244                             phba->sli4_hba.els_cq, LPFC_USOL);
11245         if (rc) {
11246                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11247                                 "0541 Failed setup of Receive Queue: "
11248                                 "rc = 0x%x\n", (uint32_t)rc);
11249                 goto out_destroy;
11250         }
11251
11252         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11253                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11254                         "parent cq-id=%d\n",
11255                         phba->sli4_hba.hdr_rq->queue_id,
11256                         phba->sli4_hba.dat_rq->queue_id,
11257                         phba->sli4_hba.els_cq->queue_id);
11258
11259         if (phba->cfg_fcp_imax)
11260                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11261         else
11262                 usdelay = 0;
11263
11264         for (qidx = 0; qidx < phba->cfg_irq_chann;
11265              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11266                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11267                                          usdelay);
11268
11269         if (phba->sli4_hba.cq_max) {
11270                 kfree(phba->sli4_hba.cq_lookup);
11271                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11272                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11273                 if (!phba->sli4_hba.cq_lookup) {
11274                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11275                                         "0549 Failed setup of CQ Lookup table: "
11276                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11277                         rc = -ENOMEM;
11278                         goto out_destroy;
11279                 }
11280                 lpfc_setup_cq_lookup(phba);
11281         }
11282         return 0;
11283
11284 out_destroy:
11285         lpfc_sli4_queue_unset(phba);
11286 out_error:
11287         return rc;
11288 }
11289
11290 /**
11291  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11292  * @phba: pointer to lpfc hba data structure.
11293  *
11294  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11295  * operation.
11296  *
11297  * Return codes
11298  *      0 - successful
11299  *      -ENOMEM - No available memory
11300  *      -EIO - The mailbox failed to complete successfully.
11301  **/
11302 void
11303 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11304 {
11305         struct lpfc_sli4_hdw_queue *qp;
11306         struct lpfc_queue *eq;
11307         int qidx;
11308
11309         /* Unset mailbox command work queue */
11310         if (phba->sli4_hba.mbx_wq)
11311                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11312
11313         /* Unset NVME LS work queue */
11314         if (phba->sli4_hba.nvmels_wq)
11315                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11316
11317         /* Unset ELS work queue */
11318         if (phba->sli4_hba.els_wq)
11319                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11320
11321         /* Unset unsolicited receive queue */
11322         if (phba->sli4_hba.hdr_rq)
11323                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11324                                 phba->sli4_hba.dat_rq);
11325
11326         /* Unset mailbox command complete queue */
11327         if (phba->sli4_hba.mbx_cq)
11328                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11329
11330         /* Unset ELS complete queue */
11331         if (phba->sli4_hba.els_cq)
11332                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11333
11334         /* Unset NVME LS complete queue */
11335         if (phba->sli4_hba.nvmels_cq)
11336                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11337
11338         if (phba->nvmet_support) {
11339                 /* Unset NVMET MRQ queue */
11340                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11341                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11342                                 lpfc_rq_destroy(
11343                                         phba,
11344                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11345                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11346                 }
11347
11348                 /* Unset NVMET CQ Set complete queue */
11349                 if (phba->sli4_hba.nvmet_cqset) {
11350                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11351                                 lpfc_cq_destroy(
11352                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11353                 }
11354         }
11355
11356         /* Unset fast-path SLI4 queues */
11357         if (phba->sli4_hba.hdwq) {
11358                 /* Loop thru all Hardware Queues */
11359                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11360                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11361                         qp = &phba->sli4_hba.hdwq[qidx];
11362                         lpfc_wq_destroy(phba, qp->io_wq);
11363                         lpfc_cq_destroy(phba, qp->io_cq);
11364                 }
11365                 /* Loop thru all IRQ vectors */
11366                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11367                         /* Destroy the EQ corresponding to the IRQ vector */
11368                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11369                         lpfc_eq_destroy(phba, eq);
11370                 }
11371         }
11372
11373         kfree(phba->sli4_hba.cq_lookup);
11374         phba->sli4_hba.cq_lookup = NULL;
11375         phba->sli4_hba.cq_max = 0;
11376 }
11377
11378 /**
11379  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11380  * @phba: pointer to lpfc hba data structure.
11381  *
11382  * This routine is invoked to allocate and set up a pool of completion queue
11383  * events. The body of the completion queue event is a completion queue entry
11384  * CQE. For now, this pool is used for the interrupt service routine to queue
11385  * the following HBA completion queue events for the worker thread to process:
11386  *   - Mailbox asynchronous events
11387  *   - Receive queue completion unsolicited events
11388  * Later, this can be used for all the slow-path events.
11389  *
11390  * Return codes
11391  *      0 - successful
11392  *      -ENOMEM - No available memory
11393  **/
11394 static int
11395 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11396 {
11397         struct lpfc_cq_event *cq_event;
11398         int i;
11399
11400         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11401                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11402                 if (!cq_event)
11403                         goto out_pool_create_fail;
11404                 list_add_tail(&cq_event->list,
11405                               &phba->sli4_hba.sp_cqe_event_pool);
11406         }
11407         return 0;
11408
11409 out_pool_create_fail:
11410         lpfc_sli4_cq_event_pool_destroy(phba);
11411         return -ENOMEM;
11412 }
11413
11414 /**
11415  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11416  * @phba: pointer to lpfc hba data structure.
11417  *
11418  * This routine is invoked to free the pool of completion queue events at
11419  * driver unload time. Note that, it is the responsibility of the driver
11420  * cleanup routine to free all the outstanding completion-queue events
11421  * allocated from this pool back into the pool before invoking this routine
11422  * to destroy the pool.
11423  **/
11424 static void
11425 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11426 {
11427         struct lpfc_cq_event *cq_event, *next_cq_event;
11428
11429         list_for_each_entry_safe(cq_event, next_cq_event,
11430                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11431                 list_del(&cq_event->list);
11432                 kfree(cq_event);
11433         }
11434 }
11435
11436 /**
11437  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11438  * @phba: pointer to lpfc hba data structure.
11439  *
11440  * This routine is the lock free version of the API invoked to allocate a
11441  * completion-queue event from the free pool.
11442  *
11443  * Return: Pointer to the newly allocated completion-queue event if successful
11444  *         NULL otherwise.
11445  **/
11446 struct lpfc_cq_event *
11447 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11448 {
11449         struct lpfc_cq_event *cq_event = NULL;
11450
11451         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11452                          struct lpfc_cq_event, list);
11453         return cq_event;
11454 }
11455
11456 /**
11457  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11458  * @phba: pointer to lpfc hba data structure.
11459  *
11460  * This routine is the lock version of the API invoked to allocate a
11461  * completion-queue event from the free pool.
11462  *
11463  * Return: Pointer to the newly allocated completion-queue event if successful
11464  *         NULL otherwise.
11465  **/
11466 struct lpfc_cq_event *
11467 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11468 {
11469         struct lpfc_cq_event *cq_event;
11470         unsigned long iflags;
11471
11472         spin_lock_irqsave(&phba->hbalock, iflags);
11473         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11474         spin_unlock_irqrestore(&phba->hbalock, iflags);
11475         return cq_event;
11476 }
11477
11478 /**
11479  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11480  * @phba: pointer to lpfc hba data structure.
11481  * @cq_event: pointer to the completion queue event to be freed.
11482  *
11483  * This routine is the lock free version of the API invoked to release a
11484  * completion-queue event back into the free pool.
11485  **/
11486 void
11487 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11488                              struct lpfc_cq_event *cq_event)
11489 {
11490         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11491 }
11492
11493 /**
11494  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11495  * @phba: pointer to lpfc hba data structure.
11496  * @cq_event: pointer to the completion queue event to be freed.
11497  *
11498  * This routine is the lock version of the API invoked to release a
11499  * completion-queue event back into the free pool.
11500  **/
11501 void
11502 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11503                            struct lpfc_cq_event *cq_event)
11504 {
11505         unsigned long iflags;
11506         spin_lock_irqsave(&phba->hbalock, iflags);
11507         __lpfc_sli4_cq_event_release(phba, cq_event);
11508         spin_unlock_irqrestore(&phba->hbalock, iflags);
11509 }
11510
11511 /**
11512  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11513  * @phba: pointer to lpfc hba data structure.
11514  *
11515  * This routine is to free all the pending completion-queue events to the
11516  * back into the free pool for device reset.
11517  **/
11518 static void
11519 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11520 {
11521         LIST_HEAD(cq_event_list);
11522         struct lpfc_cq_event *cq_event;
11523         unsigned long iflags;
11524
11525         /* Retrieve all the pending WCQEs from pending WCQE lists */
11526
11527         /* Pending ELS XRI abort events */
11528         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11529         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11530                          &cq_event_list);
11531         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11532
11533         /* Pending asynnc events */
11534         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11535         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11536                          &cq_event_list);
11537         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11538
11539         while (!list_empty(&cq_event_list)) {
11540                 list_remove_head(&cq_event_list, cq_event,
11541                                  struct lpfc_cq_event, list);
11542                 lpfc_sli4_cq_event_release(phba, cq_event);
11543         }
11544 }
11545
11546 /**
11547  * lpfc_pci_function_reset - Reset pci function.
11548  * @phba: pointer to lpfc hba data structure.
11549  *
11550  * This routine is invoked to request a PCI function reset. It will destroys
11551  * all resources assigned to the PCI function which originates this request.
11552  *
11553  * Return codes
11554  *      0 - successful
11555  *      -ENOMEM - No available memory
11556  *      -EIO - The mailbox failed to complete successfully.
11557  **/
11558 int
11559 lpfc_pci_function_reset(struct lpfc_hba *phba)
11560 {
11561         LPFC_MBOXQ_t *mboxq;
11562         uint32_t rc = 0, if_type;
11563         uint32_t shdr_status, shdr_add_status;
11564         uint32_t rdy_chk;
11565         uint32_t port_reset = 0;
11566         union lpfc_sli4_cfg_shdr *shdr;
11567         struct lpfc_register reg_data;
11568         uint16_t devid;
11569
11570         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11571         switch (if_type) {
11572         case LPFC_SLI_INTF_IF_TYPE_0:
11573                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11574                                                        GFP_KERNEL);
11575                 if (!mboxq) {
11576                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11577                                         "0494 Unable to allocate memory for "
11578                                         "issuing SLI_FUNCTION_RESET mailbox "
11579                                         "command\n");
11580                         return -ENOMEM;
11581                 }
11582
11583                 /* Setup PCI function reset mailbox-ioctl command */
11584                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11585                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11586                                  LPFC_SLI4_MBX_EMBED);
11587                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11588                 shdr = (union lpfc_sli4_cfg_shdr *)
11589                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11590                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11591                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11592                                          &shdr->response);
11593                 mempool_free(mboxq, phba->mbox_mem_pool);
11594                 if (shdr_status || shdr_add_status || rc) {
11595                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11596                                         "0495 SLI_FUNCTION_RESET mailbox "
11597                                         "failed with status x%x add_status x%x,"
11598                                         " mbx status x%x\n",
11599                                         shdr_status, shdr_add_status, rc);
11600                         rc = -ENXIO;
11601                 }
11602                 break;
11603         case LPFC_SLI_INTF_IF_TYPE_2:
11604         case LPFC_SLI_INTF_IF_TYPE_6:
11605 wait:
11606                 /*
11607                  * Poll the Port Status Register and wait for RDY for
11608                  * up to 30 seconds. If the port doesn't respond, treat
11609                  * it as an error.
11610                  */
11611                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11612                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11613                                 STATUSregaddr, &reg_data.word0)) {
11614                                 rc = -ENODEV;
11615                                 goto out;
11616                         }
11617                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11618                                 break;
11619                         msleep(20);
11620                 }
11621
11622                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11623                         phba->work_status[0] = readl(
11624                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11625                         phba->work_status[1] = readl(
11626                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11627                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11628                                         "2890 Port not ready, port status reg "
11629                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11630                                         reg_data.word0,
11631                                         phba->work_status[0],
11632                                         phba->work_status[1]);
11633                         rc = -ENODEV;
11634                         goto out;
11635                 }
11636
11637                 if (bf_get(lpfc_sliport_status_pldv, &reg_data))
11638                         lpfc_pldv_detect = true;
11639
11640                 if (!port_reset) {
11641                         /*
11642                          * Reset the port now
11643                          */
11644                         reg_data.word0 = 0;
11645                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11646                                LPFC_SLIPORT_LITTLE_ENDIAN);
11647                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11648                                LPFC_SLIPORT_INIT_PORT);
11649                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11650                                CTRLregaddr);
11651                         /* flush */
11652                         pci_read_config_word(phba->pcidev,
11653                                              PCI_DEVICE_ID, &devid);
11654
11655                         port_reset = 1;
11656                         msleep(20);
11657                         goto wait;
11658                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11659                         rc = -ENODEV;
11660                         goto out;
11661                 }
11662                 break;
11663
11664         case LPFC_SLI_INTF_IF_TYPE_1:
11665         default:
11666                 break;
11667         }
11668
11669 out:
11670         /* Catch the not-ready port failure after a port reset. */
11671         if (rc) {
11672                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11673                                 "3317 HBA not functional: IP Reset Failed "
11674                                 "try: echo fw_reset > board_mode\n");
11675                 rc = -ENODEV;
11676         }
11677
11678         return rc;
11679 }
11680
11681 /**
11682  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11683  * @phba: pointer to lpfc hba data structure.
11684  *
11685  * This routine is invoked to set up the PCI device memory space for device
11686  * with SLI-4 interface spec.
11687  *
11688  * Return codes
11689  *      0 - successful
11690  *      other values - error
11691  **/
11692 static int
11693 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11694 {
11695         struct pci_dev *pdev = phba->pcidev;
11696         unsigned long bar0map_len, bar1map_len, bar2map_len;
11697         int error;
11698         uint32_t if_type;
11699
11700         if (!pdev)
11701                 return -ENODEV;
11702
11703         /* Set the device DMA mask size */
11704         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11705         if (error)
11706                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11707         if (error)
11708                 return error;
11709
11710         /*
11711          * The BARs and register set definitions and offset locations are
11712          * dependent on the if_type.
11713          */
11714         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11715                                   &phba->sli4_hba.sli_intf.word0)) {
11716                 return -ENODEV;
11717         }
11718
11719         /* There is no SLI3 failback for SLI4 devices. */
11720         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11721             LPFC_SLI_INTF_VALID) {
11722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11723                                 "2894 SLI_INTF reg contents invalid "
11724                                 "sli_intf reg 0x%x\n",
11725                                 phba->sli4_hba.sli_intf.word0);
11726                 return -ENODEV;
11727         }
11728
11729         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11730         /*
11731          * Get the bus address of SLI4 device Bar regions and the
11732          * number of bytes required by each mapping. The mapping of the
11733          * particular PCI BARs regions is dependent on the type of
11734          * SLI4 device.
11735          */
11736         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11737                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11738                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11739
11740                 /*
11741                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11742                  * addr
11743                  */
11744                 phba->sli4_hba.conf_regs_memmap_p =
11745                         ioremap(phba->pci_bar0_map, bar0map_len);
11746                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11747                         dev_printk(KERN_ERR, &pdev->dev,
11748                                    "ioremap failed for SLI4 PCI config "
11749                                    "registers.\n");
11750                         return -ENODEV;
11751                 }
11752                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11753                 /* Set up BAR0 PCI config space register memory map */
11754                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11755         } else {
11756                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11757                 bar0map_len = pci_resource_len(pdev, 1);
11758                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11759                         dev_printk(KERN_ERR, &pdev->dev,
11760                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11761                         return -ENODEV;
11762                 }
11763                 phba->sli4_hba.conf_regs_memmap_p =
11764                                 ioremap(phba->pci_bar0_map, bar0map_len);
11765                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11766                         dev_printk(KERN_ERR, &pdev->dev,
11767                                 "ioremap failed for SLI4 PCI config "
11768                                 "registers.\n");
11769                         return -ENODEV;
11770                 }
11771                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11772         }
11773
11774         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11775                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11776                         /*
11777                          * Map SLI4 if type 0 HBA Control Register base to a
11778                          * kernel virtual address and setup the registers.
11779                          */
11780                         phba->pci_bar1_map = pci_resource_start(pdev,
11781                                                                 PCI_64BIT_BAR2);
11782                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11783                         phba->sli4_hba.ctrl_regs_memmap_p =
11784                                         ioremap(phba->pci_bar1_map,
11785                                                 bar1map_len);
11786                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11787                                 dev_err(&pdev->dev,
11788                                            "ioremap failed for SLI4 HBA "
11789                                             "control registers.\n");
11790                                 error = -ENOMEM;
11791                                 goto out_iounmap_conf;
11792                         }
11793                         phba->pci_bar2_memmap_p =
11794                                          phba->sli4_hba.ctrl_regs_memmap_p;
11795                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11796                 } else {
11797                         error = -ENOMEM;
11798                         goto out_iounmap_conf;
11799                 }
11800         }
11801
11802         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11803             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11804                 /*
11805                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11806                  * virtual address and setup the registers.
11807                  */
11808                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11809                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11810                 phba->sli4_hba.drbl_regs_memmap_p =
11811                                 ioremap(phba->pci_bar1_map, bar1map_len);
11812                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11813                         dev_err(&pdev->dev,
11814                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11815                         error = -ENOMEM;
11816                         goto out_iounmap_conf;
11817                 }
11818                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11819                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11820         }
11821
11822         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11823                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11824                         /*
11825                          * Map SLI4 if type 0 HBA Doorbell Register base to
11826                          * a kernel virtual address and setup the registers.
11827                          */
11828                         phba->pci_bar2_map = pci_resource_start(pdev,
11829                                                                 PCI_64BIT_BAR4);
11830                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11831                         phba->sli4_hba.drbl_regs_memmap_p =
11832                                         ioremap(phba->pci_bar2_map,
11833                                                 bar2map_len);
11834                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11835                                 dev_err(&pdev->dev,
11836                                            "ioremap failed for SLI4 HBA"
11837                                            " doorbell registers.\n");
11838                                 error = -ENOMEM;
11839                                 goto out_iounmap_ctrl;
11840                         }
11841                         phba->pci_bar4_memmap_p =
11842                                         phba->sli4_hba.drbl_regs_memmap_p;
11843                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11844                         if (error)
11845                                 goto out_iounmap_all;
11846                 } else {
11847                         error = -ENOMEM;
11848                         goto out_iounmap_all;
11849                 }
11850         }
11851
11852         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11853             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11854                 /*
11855                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11856                  * virtual address and setup the registers.
11857                  */
11858                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11859                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11860                 phba->sli4_hba.dpp_regs_memmap_p =
11861                                 ioremap(phba->pci_bar2_map, bar2map_len);
11862                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11863                         dev_err(&pdev->dev,
11864                            "ioremap failed for SLI4 HBA dpp registers.\n");
11865                         error = -ENOMEM;
11866                         goto out_iounmap_ctrl;
11867                 }
11868                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11869         }
11870
11871         /* Set up the EQ/CQ register handeling functions now */
11872         switch (if_type) {
11873         case LPFC_SLI_INTF_IF_TYPE_0:
11874         case LPFC_SLI_INTF_IF_TYPE_2:
11875                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11876                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11877                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11878                 break;
11879         case LPFC_SLI_INTF_IF_TYPE_6:
11880                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11881                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11882                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11883                 break;
11884         default:
11885                 break;
11886         }
11887
11888         return 0;
11889
11890 out_iounmap_all:
11891         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11892 out_iounmap_ctrl:
11893         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11894 out_iounmap_conf:
11895         iounmap(phba->sli4_hba.conf_regs_memmap_p);
11896
11897         return error;
11898 }
11899
11900 /**
11901  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11902  * @phba: pointer to lpfc hba data structure.
11903  *
11904  * This routine is invoked to unset the PCI device memory space for device
11905  * with SLI-4 interface spec.
11906  **/
11907 static void
11908 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11909 {
11910         uint32_t if_type;
11911         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11912
11913         switch (if_type) {
11914         case LPFC_SLI_INTF_IF_TYPE_0:
11915                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11916                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11917                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11918                 break;
11919         case LPFC_SLI_INTF_IF_TYPE_2:
11920                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11921                 break;
11922         case LPFC_SLI_INTF_IF_TYPE_6:
11923                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11924                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11925                 if (phba->sli4_hba.dpp_regs_memmap_p)
11926                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11927                 break;
11928         case LPFC_SLI_INTF_IF_TYPE_1:
11929         default:
11930                 dev_printk(KERN_ERR, &phba->pcidev->dev,
11931                            "FATAL - unsupported SLI4 interface type - %d\n",
11932                            if_type);
11933                 break;
11934         }
11935 }
11936
11937 /**
11938  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11939  * @phba: pointer to lpfc hba data structure.
11940  *
11941  * This routine is invoked to enable the MSI-X interrupt vectors to device
11942  * with SLI-3 interface specs.
11943  *
11944  * Return codes
11945  *   0 - successful
11946  *   other values - error
11947  **/
11948 static int
11949 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11950 {
11951         int rc;
11952         LPFC_MBOXQ_t *pmb;
11953
11954         /* Set up MSI-X multi-message vectors */
11955         rc = pci_alloc_irq_vectors(phba->pcidev,
11956                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11957         if (rc < 0) {
11958                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11959                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
11960                 goto vec_fail_out;
11961         }
11962
11963         /*
11964          * Assign MSI-X vectors to interrupt handlers
11965          */
11966
11967         /* vector-0 is associated to slow-path handler */
11968         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11969                          &lpfc_sli_sp_intr_handler, 0,
11970                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
11971         if (rc) {
11972                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11973                                 "0421 MSI-X slow-path request_irq failed "
11974                                 "(%d)\n", rc);
11975                 goto msi_fail_out;
11976         }
11977
11978         /* vector-1 is associated to fast-path handler */
11979         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11980                          &lpfc_sli_fp_intr_handler, 0,
11981                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
11982
11983         if (rc) {
11984                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11985                                 "0429 MSI-X fast-path request_irq failed "
11986                                 "(%d)\n", rc);
11987                 goto irq_fail_out;
11988         }
11989
11990         /*
11991          * Configure HBA MSI-X attention conditions to messages
11992          */
11993         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11994
11995         if (!pmb) {
11996                 rc = -ENOMEM;
11997                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11998                                 "0474 Unable to allocate memory for issuing "
11999                                 "MBOX_CONFIG_MSI command\n");
12000                 goto mem_fail_out;
12001         }
12002         rc = lpfc_config_msi(phba, pmb);
12003         if (rc)
12004                 goto mbx_fail_out;
12005         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12006         if (rc != MBX_SUCCESS) {
12007                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
12008                                 "0351 Config MSI mailbox command failed, "
12009                                 "mbxCmd x%x, mbxStatus x%x\n",
12010                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
12011                 goto mbx_fail_out;
12012         }
12013
12014         /* Free memory allocated for mailbox command */
12015         mempool_free(pmb, phba->mbox_mem_pool);
12016         return rc;
12017
12018 mbx_fail_out:
12019         /* Free memory allocated for mailbox command */
12020         mempool_free(pmb, phba->mbox_mem_pool);
12021
12022 mem_fail_out:
12023         /* free the irq already requested */
12024         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
12025
12026 irq_fail_out:
12027         /* free the irq already requested */
12028         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
12029
12030 msi_fail_out:
12031         /* Unconfigure MSI-X capability structure */
12032         pci_free_irq_vectors(phba->pcidev);
12033
12034 vec_fail_out:
12035         return rc;
12036 }
12037
12038 /**
12039  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
12040  * @phba: pointer to lpfc hba data structure.
12041  *
12042  * This routine is invoked to enable the MSI interrupt mode to device with
12043  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
12044  * enable the MSI vector. The device driver is responsible for calling the
12045  * request_irq() to register MSI vector with a interrupt the handler, which
12046  * is done in this function.
12047  *
12048  * Return codes
12049  *      0 - successful
12050  *      other values - error
12051  */
12052 static int
12053 lpfc_sli_enable_msi(struct lpfc_hba *phba)
12054 {
12055         int rc;
12056
12057         rc = pci_enable_msi(phba->pcidev);
12058         if (!rc)
12059                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12060                                 "0462 PCI enable MSI mode success.\n");
12061         else {
12062                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12063                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
12064                 return rc;
12065         }
12066
12067         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12068                          0, LPFC_DRIVER_NAME, phba);
12069         if (rc) {
12070                 pci_disable_msi(phba->pcidev);
12071                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12072                                 "0478 MSI request_irq failed (%d)\n", rc);
12073         }
12074         return rc;
12075 }
12076
12077 /**
12078  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
12079  * @phba: pointer to lpfc hba data structure.
12080  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12081  *
12082  * This routine is invoked to enable device interrupt and associate driver's
12083  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
12084  * spec. Depends on the interrupt mode configured to the driver, the driver
12085  * will try to fallback from the configured interrupt mode to an interrupt
12086  * mode which is supported by the platform, kernel, and device in the order
12087  * of:
12088  * MSI-X -> MSI -> IRQ.
12089  *
12090  * Return codes
12091  *   0 - successful
12092  *   other values - error
12093  **/
12094 static uint32_t
12095 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12096 {
12097         uint32_t intr_mode = LPFC_INTR_ERROR;
12098         int retval;
12099
12100         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12101         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12102         if (retval)
12103                 return intr_mode;
12104         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12105
12106         if (cfg_mode == 2) {
12107                 /* Now, try to enable MSI-X interrupt mode */
12108                 retval = lpfc_sli_enable_msix(phba);
12109                 if (!retval) {
12110                         /* Indicate initialization to MSI-X mode */
12111                         phba->intr_type = MSIX;
12112                         intr_mode = 2;
12113                 }
12114         }
12115
12116         /* Fallback to MSI if MSI-X initialization failed */
12117         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12118                 retval = lpfc_sli_enable_msi(phba);
12119                 if (!retval) {
12120                         /* Indicate initialization to MSI mode */
12121                         phba->intr_type = MSI;
12122                         intr_mode = 1;
12123                 }
12124         }
12125
12126         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12127         if (phba->intr_type == NONE) {
12128                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12129                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12130                 if (!retval) {
12131                         /* Indicate initialization to INTx mode */
12132                         phba->intr_type = INTx;
12133                         intr_mode = 0;
12134                 }
12135         }
12136         return intr_mode;
12137 }
12138
12139 /**
12140  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12141  * @phba: pointer to lpfc hba data structure.
12142  *
12143  * This routine is invoked to disable device interrupt and disassociate the
12144  * driver's interrupt handler(s) from interrupt vector(s) to device with
12145  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12146  * release the interrupt vector(s) for the message signaled interrupt.
12147  **/
12148 static void
12149 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12150 {
12151         int nr_irqs, i;
12152
12153         if (phba->intr_type == MSIX)
12154                 nr_irqs = LPFC_MSIX_VECTORS;
12155         else
12156                 nr_irqs = 1;
12157
12158         for (i = 0; i < nr_irqs; i++)
12159                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12160         pci_free_irq_vectors(phba->pcidev);
12161
12162         /* Reset interrupt management states */
12163         phba->intr_type = NONE;
12164         phba->sli.slistat.sli_intr = 0;
12165 }
12166
12167 /**
12168  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12169  * @phba: pointer to lpfc hba data structure.
12170  * @id: EQ vector index or Hardware Queue index
12171  * @match: LPFC_FIND_BY_EQ = match by EQ
12172  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12173  * Return the CPU that matches the selection criteria
12174  */
12175 static uint16_t
12176 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12177 {
12178         struct lpfc_vector_map_info *cpup;
12179         int cpu;
12180
12181         /* Loop through all CPUs */
12182         for_each_present_cpu(cpu) {
12183                 cpup = &phba->sli4_hba.cpu_map[cpu];
12184
12185                 /* If we are matching by EQ, there may be multiple CPUs using
12186                  * using the same vector, so select the one with
12187                  * LPFC_CPU_FIRST_IRQ set.
12188                  */
12189                 if ((match == LPFC_FIND_BY_EQ) &&
12190                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12191                     (cpup->eq == id))
12192                         return cpu;
12193
12194                 /* If matching by HDWQ, select the first CPU that matches */
12195                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12196                         return cpu;
12197         }
12198         return 0;
12199 }
12200
12201 #ifdef CONFIG_X86
12202 /**
12203  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12204  * @phba: pointer to lpfc hba data structure.
12205  * @cpu: CPU map index
12206  * @phys_id: CPU package physical id
12207  * @core_id: CPU core id
12208  */
12209 static int
12210 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12211                 uint16_t phys_id, uint16_t core_id)
12212 {
12213         struct lpfc_vector_map_info *cpup;
12214         int idx;
12215
12216         for_each_present_cpu(idx) {
12217                 cpup = &phba->sli4_hba.cpu_map[idx];
12218                 /* Does the cpup match the one we are looking for */
12219                 if ((cpup->phys_id == phys_id) &&
12220                     (cpup->core_id == core_id) &&
12221                     (cpu != idx))
12222                         return 1;
12223         }
12224         return 0;
12225 }
12226 #endif
12227
12228 /*
12229  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12230  * @phba: pointer to lpfc hba data structure.
12231  * @eqidx: index for eq and irq vector
12232  * @flag: flags to set for vector_map structure
12233  * @cpu: cpu used to index vector_map structure
12234  *
12235  * The routine assigns eq info into vector_map structure
12236  */
12237 static inline void
12238 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12239                         unsigned int cpu)
12240 {
12241         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12242         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12243
12244         cpup->eq = eqidx;
12245         cpup->flag |= flag;
12246
12247         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12248                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12249                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12250 }
12251
12252 /**
12253  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12254  * @phba: pointer to lpfc hba data structure.
12255  *
12256  * The routine initializes the cpu_map array structure
12257  */
12258 static void
12259 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12260 {
12261         struct lpfc_vector_map_info *cpup;
12262         struct lpfc_eq_intr_info *eqi;
12263         int cpu;
12264
12265         for_each_possible_cpu(cpu) {
12266                 cpup = &phba->sli4_hba.cpu_map[cpu];
12267                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12268                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12269                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12270                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12271                 cpup->flag = 0;
12272                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12273                 INIT_LIST_HEAD(&eqi->list);
12274                 eqi->icnt = 0;
12275         }
12276 }
12277
12278 /**
12279  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12280  * @phba: pointer to lpfc hba data structure.
12281  *
12282  * The routine initializes the hba_eq_hdl array structure
12283  */
12284 static void
12285 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12286 {
12287         struct lpfc_hba_eq_hdl *eqhdl;
12288         int i;
12289
12290         for (i = 0; i < phba->cfg_irq_chann; i++) {
12291                 eqhdl = lpfc_get_eq_hdl(i);
12292                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12293                 eqhdl->phba = phba;
12294         }
12295 }
12296
12297 /**
12298  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12299  * @phba: pointer to lpfc hba data structure.
12300  * @vectors: number of msix vectors allocated.
12301  *
12302  * The routine will figure out the CPU affinity assignment for every
12303  * MSI-X vector allocated for the HBA.
12304  * In addition, the CPU to IO channel mapping will be calculated
12305  * and the phba->sli4_hba.cpu_map array will reflect this.
12306  */
12307 static void
12308 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12309 {
12310         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12311         int max_phys_id, min_phys_id;
12312         int max_core_id, min_core_id;
12313         struct lpfc_vector_map_info *cpup;
12314         struct lpfc_vector_map_info *new_cpup;
12315 #ifdef CONFIG_X86
12316         struct cpuinfo_x86 *cpuinfo;
12317 #endif
12318 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12319         struct lpfc_hdwq_stat *c_stat;
12320 #endif
12321
12322         max_phys_id = 0;
12323         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12324         max_core_id = 0;
12325         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12326
12327         /* Update CPU map with physical id and core id of each CPU */
12328         for_each_present_cpu(cpu) {
12329                 cpup = &phba->sli4_hba.cpu_map[cpu];
12330 #ifdef CONFIG_X86
12331                 cpuinfo = &cpu_data(cpu);
12332                 cpup->phys_id = cpuinfo->phys_proc_id;
12333                 cpup->core_id = cpuinfo->cpu_core_id;
12334                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12335                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12336 #else
12337                 /* No distinction between CPUs for other platforms */
12338                 cpup->phys_id = 0;
12339                 cpup->core_id = cpu;
12340 #endif
12341
12342                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12343                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12344                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12345
12346                 if (cpup->phys_id > max_phys_id)
12347                         max_phys_id = cpup->phys_id;
12348                 if (cpup->phys_id < min_phys_id)
12349                         min_phys_id = cpup->phys_id;
12350
12351                 if (cpup->core_id > max_core_id)
12352                         max_core_id = cpup->core_id;
12353                 if (cpup->core_id < min_core_id)
12354                         min_core_id = cpup->core_id;
12355         }
12356
12357         /* After looking at each irq vector assigned to this pcidev, its
12358          * possible to see that not ALL CPUs have been accounted for.
12359          * Next we will set any unassigned (unaffinitized) cpu map
12360          * entries to a IRQ on the same phys_id.
12361          */
12362         first_cpu = cpumask_first(cpu_present_mask);
12363         start_cpu = first_cpu;
12364
12365         for_each_present_cpu(cpu) {
12366                 cpup = &phba->sli4_hba.cpu_map[cpu];
12367
12368                 /* Is this CPU entry unassigned */
12369                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12370                         /* Mark CPU as IRQ not assigned by the kernel */
12371                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12372
12373                         /* If so, find a new_cpup thats on the the SAME
12374                          * phys_id as cpup. start_cpu will start where we
12375                          * left off so all unassigned entries don't get assgined
12376                          * the IRQ of the first entry.
12377                          */
12378                         new_cpu = start_cpu;
12379                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12380                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12381                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12382                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12383                                     (new_cpup->phys_id == cpup->phys_id))
12384                                         goto found_same;
12385                                 new_cpu = cpumask_next(
12386                                         new_cpu, cpu_present_mask);
12387                                 if (new_cpu == nr_cpumask_bits)
12388                                         new_cpu = first_cpu;
12389                         }
12390                         /* At this point, we leave the CPU as unassigned */
12391                         continue;
12392 found_same:
12393                         /* We found a matching phys_id, so copy the IRQ info */
12394                         cpup->eq = new_cpup->eq;
12395
12396                         /* Bump start_cpu to the next slot to minmize the
12397                          * chance of having multiple unassigned CPU entries
12398                          * selecting the same IRQ.
12399                          */
12400                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12401                         if (start_cpu == nr_cpumask_bits)
12402                                 start_cpu = first_cpu;
12403
12404                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12405                                         "3337 Set Affinity: CPU %d "
12406                                         "eq %d from peer cpu %d same "
12407                                         "phys_id (%d)\n",
12408                                         cpu, cpup->eq, new_cpu,
12409                                         cpup->phys_id);
12410                 }
12411         }
12412
12413         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12414         start_cpu = first_cpu;
12415
12416         for_each_present_cpu(cpu) {
12417                 cpup = &phba->sli4_hba.cpu_map[cpu];
12418
12419                 /* Is this entry unassigned */
12420                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12421                         /* Mark it as IRQ not assigned by the kernel */
12422                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12423
12424                         /* If so, find a new_cpup thats on ANY phys_id
12425                          * as the cpup. start_cpu will start where we
12426                          * left off so all unassigned entries don't get
12427                          * assigned the IRQ of the first entry.
12428                          */
12429                         new_cpu = start_cpu;
12430                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12431                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12432                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12433                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12434                                         goto found_any;
12435                                 new_cpu = cpumask_next(
12436                                         new_cpu, cpu_present_mask);
12437                                 if (new_cpu == nr_cpumask_bits)
12438                                         new_cpu = first_cpu;
12439                         }
12440                         /* We should never leave an entry unassigned */
12441                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12442                                         "3339 Set Affinity: CPU %d "
12443                                         "eq %d UNASSIGNED\n",
12444                                         cpup->hdwq, cpup->eq);
12445                         continue;
12446 found_any:
12447                         /* We found an available entry, copy the IRQ info */
12448                         cpup->eq = new_cpup->eq;
12449
12450                         /* Bump start_cpu to the next slot to minmize the
12451                          * chance of having multiple unassigned CPU entries
12452                          * selecting the same IRQ.
12453                          */
12454                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12455                         if (start_cpu == nr_cpumask_bits)
12456                                 start_cpu = first_cpu;
12457
12458                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12459                                         "3338 Set Affinity: CPU %d "
12460                                         "eq %d from peer cpu %d (%d/%d)\n",
12461                                         cpu, cpup->eq, new_cpu,
12462                                         new_cpup->phys_id, new_cpup->core_id);
12463                 }
12464         }
12465
12466         /* Assign hdwq indices that are unique across all cpus in the map
12467          * that are also FIRST_CPUs.
12468          */
12469         idx = 0;
12470         for_each_present_cpu(cpu) {
12471                 cpup = &phba->sli4_hba.cpu_map[cpu];
12472
12473                 /* Only FIRST IRQs get a hdwq index assignment. */
12474                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12475                         continue;
12476
12477                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12478                 cpup->hdwq = idx;
12479                 idx++;
12480                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12481                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12482                                 "hdwq %d eq %d flg x%x\n",
12483                                 cpu, cpup->phys_id, cpup->core_id,
12484                                 cpup->hdwq, cpup->eq, cpup->flag);
12485         }
12486         /* Associate a hdwq with each cpu_map entry
12487          * This will be 1 to 1 - hdwq to cpu, unless there are less
12488          * hardware queues then CPUs. For that case we will just round-robin
12489          * the available hardware queues as they get assigned to CPUs.
12490          * The next_idx is the idx from the FIRST_CPU loop above to account
12491          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12492          * and needs to start at 0.
12493          */
12494         next_idx = idx;
12495         start_cpu = 0;
12496         idx = 0;
12497         for_each_present_cpu(cpu) {
12498                 cpup = &phba->sli4_hba.cpu_map[cpu];
12499
12500                 /* FIRST cpus are already mapped. */
12501                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12502                         continue;
12503
12504                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12505                  * of the unassigned cpus to the next idx so that all
12506                  * hdw queues are fully utilized.
12507                  */
12508                 if (next_idx < phba->cfg_hdw_queue) {
12509                         cpup->hdwq = next_idx;
12510                         next_idx++;
12511                         continue;
12512                 }
12513
12514                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12515                  * Hardware Queue for another CPU, so be smart about it
12516                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12517                  * (CPU package) and core_id.
12518                  */
12519                 new_cpu = start_cpu;
12520                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12521                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12522                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12523                             new_cpup->phys_id == cpup->phys_id &&
12524                             new_cpup->core_id == cpup->core_id) {
12525                                 goto found_hdwq;
12526                         }
12527                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12528                         if (new_cpu == nr_cpumask_bits)
12529                                 new_cpu = first_cpu;
12530                 }
12531
12532                 /* If we can't match both phys_id and core_id,
12533                  * settle for just a phys_id match.
12534                  */
12535                 new_cpu = start_cpu;
12536                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12537                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12538                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12539                             new_cpup->phys_id == cpup->phys_id)
12540                                 goto found_hdwq;
12541
12542                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12543                         if (new_cpu == nr_cpumask_bits)
12544                                 new_cpu = first_cpu;
12545                 }
12546
12547                 /* Otherwise just round robin on cfg_hdw_queue */
12548                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12549                 idx++;
12550                 goto logit;
12551  found_hdwq:
12552                 /* We found an available entry, copy the IRQ info */
12553                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12554                 if (start_cpu == nr_cpumask_bits)
12555                         start_cpu = first_cpu;
12556                 cpup->hdwq = new_cpup->hdwq;
12557  logit:
12558                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12559                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12560                                 "hdwq %d eq %d flg x%x\n",
12561                                 cpu, cpup->phys_id, cpup->core_id,
12562                                 cpup->hdwq, cpup->eq, cpup->flag);
12563         }
12564
12565         /*
12566          * Initialize the cpu_map slots for not-present cpus in case
12567          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12568          */
12569         idx = 0;
12570         for_each_possible_cpu(cpu) {
12571                 cpup = &phba->sli4_hba.cpu_map[cpu];
12572 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12573                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12574                 c_stat->hdwq_no = cpup->hdwq;
12575 #endif
12576                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12577                         continue;
12578
12579                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12580 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12581                 c_stat->hdwq_no = cpup->hdwq;
12582 #endif
12583                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12584                                 "3340 Set Affinity: not present "
12585                                 "CPU %d hdwq %d\n",
12586                                 cpu, cpup->hdwq);
12587         }
12588
12589         /* The cpu_map array will be used later during initialization
12590          * when EQ / CQ / WQs are allocated and configured.
12591          */
12592         return;
12593 }
12594
12595 /**
12596  * lpfc_cpuhp_get_eq
12597  *
12598  * @phba:   pointer to lpfc hba data structure.
12599  * @cpu:    cpu going offline
12600  * @eqlist: eq list to append to
12601  */
12602 static int
12603 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12604                   struct list_head *eqlist)
12605 {
12606         const struct cpumask *maskp;
12607         struct lpfc_queue *eq;
12608         struct cpumask *tmp;
12609         u16 idx;
12610
12611         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12612         if (!tmp)
12613                 return -ENOMEM;
12614
12615         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12616                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12617                 if (!maskp)
12618                         continue;
12619                 /*
12620                  * if irq is not affinitized to the cpu going
12621                  * then we don't need to poll the eq attached
12622                  * to it.
12623                  */
12624                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12625                         continue;
12626                 /* get the cpus that are online and are affini-
12627                  * tized to this irq vector.  If the count is
12628                  * more than 1 then cpuhp is not going to shut-
12629                  * down this vector.  Since this cpu has not
12630                  * gone offline yet, we need >1.
12631                  */
12632                 cpumask_and(tmp, maskp, cpu_online_mask);
12633                 if (cpumask_weight(tmp) > 1)
12634                         continue;
12635
12636                 /* Now that we have an irq to shutdown, get the eq
12637                  * mapped to this irq.  Note: multiple hdwq's in
12638                  * the software can share an eq, but eventually
12639                  * only eq will be mapped to this vector
12640                  */
12641                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12642                 list_add(&eq->_poll_list, eqlist);
12643         }
12644         kfree(tmp);
12645         return 0;
12646 }
12647
12648 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12649 {
12650         if (phba->sli_rev != LPFC_SLI_REV4)
12651                 return;
12652
12653         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12654                                             &phba->cpuhp);
12655         /*
12656          * unregistering the instance doesn't stop the polling
12657          * timer. Wait for the poll timer to retire.
12658          */
12659         synchronize_rcu();
12660         del_timer_sync(&phba->cpuhp_poll_timer);
12661 }
12662
12663 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12664 {
12665         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12666                 return;
12667
12668         __lpfc_cpuhp_remove(phba);
12669 }
12670
12671 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12672 {
12673         if (phba->sli_rev != LPFC_SLI_REV4)
12674                 return;
12675
12676         rcu_read_lock();
12677
12678         if (!list_empty(&phba->poll_list))
12679                 mod_timer(&phba->cpuhp_poll_timer,
12680                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12681
12682         rcu_read_unlock();
12683
12684         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12685                                          &phba->cpuhp);
12686 }
12687
12688 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12689 {
12690         if (phba->pport->load_flag & FC_UNLOADING) {
12691                 *retval = -EAGAIN;
12692                 return true;
12693         }
12694
12695         if (phba->sli_rev != LPFC_SLI_REV4) {
12696                 *retval = 0;
12697                 return true;
12698         }
12699
12700         /* proceed with the hotplug */
12701         return false;
12702 }
12703
12704 /**
12705  * lpfc_irq_set_aff - set IRQ affinity
12706  * @eqhdl: EQ handle
12707  * @cpu: cpu to set affinity
12708  *
12709  **/
12710 static inline void
12711 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12712 {
12713         cpumask_clear(&eqhdl->aff_mask);
12714         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12715         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12716         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
12717 }
12718
12719 /**
12720  * lpfc_irq_clear_aff - clear IRQ affinity
12721  * @eqhdl: EQ handle
12722  *
12723  **/
12724 static inline void
12725 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12726 {
12727         cpumask_clear(&eqhdl->aff_mask);
12728         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12729 }
12730
12731 /**
12732  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12733  * @phba: pointer to HBA context object.
12734  * @cpu: cpu going offline/online
12735  * @offline: true, cpu is going offline. false, cpu is coming online.
12736  *
12737  * If cpu is going offline, we'll try our best effort to find the next
12738  * online cpu on the phba's original_mask and migrate all offlining IRQ
12739  * affinities.
12740  *
12741  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12742  *
12743  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12744  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12745  *
12746  **/
12747 static void
12748 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12749 {
12750         struct lpfc_vector_map_info *cpup;
12751         struct cpumask *aff_mask;
12752         unsigned int cpu_select, cpu_next, idx;
12753         const struct cpumask *orig_mask;
12754
12755         if (phba->irq_chann_mode == NORMAL_MODE)
12756                 return;
12757
12758         orig_mask = &phba->sli4_hba.irq_aff_mask;
12759
12760         if (!cpumask_test_cpu(cpu, orig_mask))
12761                 return;
12762
12763         cpup = &phba->sli4_hba.cpu_map[cpu];
12764
12765         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12766                 return;
12767
12768         if (offline) {
12769                 /* Find next online CPU on original mask */
12770                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12771                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12772
12773                 /* Found a valid CPU */
12774                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12775                         /* Go through each eqhdl and ensure offlining
12776                          * cpu aff_mask is migrated
12777                          */
12778                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12779                                 aff_mask = lpfc_get_aff_mask(idx);
12780
12781                                 /* Migrate affinity */
12782                                 if (cpumask_test_cpu(cpu, aff_mask))
12783                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12784                                                          cpu_select);
12785                         }
12786                 } else {
12787                         /* Rely on irqbalance if no online CPUs left on NUMA */
12788                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12789                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12790                 }
12791         } else {
12792                 /* Migrate affinity back to this CPU */
12793                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12794         }
12795 }
12796
12797 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12798 {
12799         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12800         struct lpfc_queue *eq, *next;
12801         LIST_HEAD(eqlist);
12802         int retval;
12803
12804         if (!phba) {
12805                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12806                 return 0;
12807         }
12808
12809         if (__lpfc_cpuhp_checks(phba, &retval))
12810                 return retval;
12811
12812         lpfc_irq_rebalance(phba, cpu, true);
12813
12814         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12815         if (retval)
12816                 return retval;
12817
12818         /* start polling on these eq's */
12819         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12820                 list_del_init(&eq->_poll_list);
12821                 lpfc_sli4_start_polling(eq);
12822         }
12823
12824         return 0;
12825 }
12826
12827 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12828 {
12829         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12830         struct lpfc_queue *eq, *next;
12831         unsigned int n;
12832         int retval;
12833
12834         if (!phba) {
12835                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12836                 return 0;
12837         }
12838
12839         if (__lpfc_cpuhp_checks(phba, &retval))
12840                 return retval;
12841
12842         lpfc_irq_rebalance(phba, cpu, false);
12843
12844         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12845                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12846                 if (n == cpu)
12847                         lpfc_sli4_stop_polling(eq);
12848         }
12849
12850         return 0;
12851 }
12852
12853 /**
12854  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12855  * @phba: pointer to lpfc hba data structure.
12856  *
12857  * This routine is invoked to enable the MSI-X interrupt vectors to device
12858  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12859  * to cpus on the system.
12860  *
12861  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12862  * the number of cpus on the same numa node as this adapter.  The vectors are
12863  * allocated without requesting OS affinity mapping.  A vector will be
12864  * allocated and assigned to each online and offline cpu.  If the cpu is
12865  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12866  * affinity will be set to the nearest peer cpu within the numa node that is
12867  * online.  If there are no online cpus within the numa node, affinity is not
12868  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12869  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12870  * configured.
12871  *
12872  * If numa mode is not enabled and there is more than 1 vector allocated, then
12873  * the driver relies on the managed irq interface where the OS assigns vector to
12874  * cpu affinity.  The driver will then use that affinity mapping to setup its
12875  * cpu mapping table.
12876  *
12877  * Return codes
12878  * 0 - successful
12879  * other values - error
12880  **/
12881 static int
12882 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12883 {
12884         int vectors, rc, index;
12885         char *name;
12886         const struct cpumask *aff_mask = NULL;
12887         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12888         struct lpfc_vector_map_info *cpup;
12889         struct lpfc_hba_eq_hdl *eqhdl;
12890         const struct cpumask *maskp;
12891         unsigned int flags = PCI_IRQ_MSIX;
12892
12893         /* Set up MSI-X multi-message vectors */
12894         vectors = phba->cfg_irq_chann;
12895
12896         if (phba->irq_chann_mode != NORMAL_MODE)
12897                 aff_mask = &phba->sli4_hba.irq_aff_mask;
12898
12899         if (aff_mask) {
12900                 cpu_cnt = cpumask_weight(aff_mask);
12901                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12902
12903                 /* cpu: iterates over aff_mask including offline or online
12904                  * cpu_select: iterates over online aff_mask to set affinity
12905                  */
12906                 cpu = cpumask_first(aff_mask);
12907                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12908         } else {
12909                 flags |= PCI_IRQ_AFFINITY;
12910         }
12911
12912         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12913         if (rc < 0) {
12914                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12915                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
12916                 goto vec_fail_out;
12917         }
12918         vectors = rc;
12919
12920         /* Assign MSI-X vectors to interrupt handlers */
12921         for (index = 0; index < vectors; index++) {
12922                 eqhdl = lpfc_get_eq_hdl(index);
12923                 name = eqhdl->handler_name;
12924                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12925                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12926                          LPFC_DRIVER_HANDLER_NAME"%d", index);
12927
12928                 eqhdl->idx = index;
12929                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12930                          &lpfc_sli4_hba_intr_handler, 0,
12931                          name, eqhdl);
12932                 if (rc) {
12933                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12934                                         "0486 MSI-X fast-path (%d) "
12935                                         "request_irq failed (%d)\n", index, rc);
12936                         goto cfg_fail_out;
12937                 }
12938
12939                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12940
12941                 if (aff_mask) {
12942                         /* If found a neighboring online cpu, set affinity */
12943                         if (cpu_select < nr_cpu_ids)
12944                                 lpfc_irq_set_aff(eqhdl, cpu_select);
12945
12946                         /* Assign EQ to cpu_map */
12947                         lpfc_assign_eq_map_info(phba, index,
12948                                                 LPFC_CPU_FIRST_IRQ,
12949                                                 cpu);
12950
12951                         /* Iterate to next offline or online cpu in aff_mask */
12952                         cpu = cpumask_next(cpu, aff_mask);
12953
12954                         /* Find next online cpu in aff_mask to set affinity */
12955                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12956                 } else if (vectors == 1) {
12957                         cpu = cpumask_first(cpu_present_mask);
12958                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12959                                                 cpu);
12960                 } else {
12961                         maskp = pci_irq_get_affinity(phba->pcidev, index);
12962
12963                         /* Loop through all CPUs associated with vector index */
12964                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12965                                 cpup = &phba->sli4_hba.cpu_map[cpu];
12966
12967                                 /* If this is the first CPU thats assigned to
12968                                  * this vector, set LPFC_CPU_FIRST_IRQ.
12969                                  *
12970                                  * With certain platforms its possible that irq
12971                                  * vectors are affinitized to all the cpu's.
12972                                  * This can result in each cpu_map.eq to be set
12973                                  * to the last vector, resulting in overwrite
12974                                  * of all the previous cpu_map.eq.  Ensure that
12975                                  * each vector receives a place in cpu_map.
12976                                  * Later call to lpfc_cpu_affinity_check will
12977                                  * ensure we are nicely balanced out.
12978                                  */
12979                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12980                                         continue;
12981                                 lpfc_assign_eq_map_info(phba, index,
12982                                                         LPFC_CPU_FIRST_IRQ,
12983                                                         cpu);
12984                                 break;
12985                         }
12986                 }
12987         }
12988
12989         if (vectors != phba->cfg_irq_chann) {
12990                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12991                                 "3238 Reducing IO channels to match number of "
12992                                 "MSI-X vectors, requested %d got %d\n",
12993                                 phba->cfg_irq_chann, vectors);
12994                 if (phba->cfg_irq_chann > vectors)
12995                         phba->cfg_irq_chann = vectors;
12996         }
12997
12998         return rc;
12999
13000 cfg_fail_out:
13001         /* free the irq already requested */
13002         for (--index; index >= 0; index--) {
13003                 eqhdl = lpfc_get_eq_hdl(index);
13004                 lpfc_irq_clear_aff(eqhdl);
13005                 irq_set_affinity_hint(eqhdl->irq, NULL);
13006                 free_irq(eqhdl->irq, eqhdl);
13007         }
13008
13009         /* Unconfigure MSI-X capability structure */
13010         pci_free_irq_vectors(phba->pcidev);
13011
13012 vec_fail_out:
13013         return rc;
13014 }
13015
13016 /**
13017  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
13018  * @phba: pointer to lpfc hba data structure.
13019  *
13020  * This routine is invoked to enable the MSI interrupt mode to device with
13021  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
13022  * called to enable the MSI vector. The device driver is responsible for
13023  * calling the request_irq() to register MSI vector with a interrupt the
13024  * handler, which is done in this function.
13025  *
13026  * Return codes
13027  *      0 - successful
13028  *      other values - error
13029  **/
13030 static int
13031 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
13032 {
13033         int rc, index;
13034         unsigned int cpu;
13035         struct lpfc_hba_eq_hdl *eqhdl;
13036
13037         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
13038                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
13039         if (rc > 0)
13040                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13041                                 "0487 PCI enable MSI mode success.\n");
13042         else {
13043                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13044                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
13045                 return rc ? rc : -1;
13046         }
13047
13048         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13049                          0, LPFC_DRIVER_NAME, phba);
13050         if (rc) {
13051                 pci_free_irq_vectors(phba->pcidev);
13052                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13053                                 "0490 MSI request_irq failed (%d)\n", rc);
13054                 return rc;
13055         }
13056
13057         eqhdl = lpfc_get_eq_hdl(0);
13058         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13059
13060         cpu = cpumask_first(cpu_present_mask);
13061         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
13062
13063         for (index = 0; index < phba->cfg_irq_chann; index++) {
13064                 eqhdl = lpfc_get_eq_hdl(index);
13065                 eqhdl->idx = index;
13066         }
13067
13068         return 0;
13069 }
13070
13071 /**
13072  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
13073  * @phba: pointer to lpfc hba data structure.
13074  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
13075  *
13076  * This routine is invoked to enable device interrupt and associate driver's
13077  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
13078  * interface spec. Depends on the interrupt mode configured to the driver,
13079  * the driver will try to fallback from the configured interrupt mode to an
13080  * interrupt mode which is supported by the platform, kernel, and device in
13081  * the order of:
13082  * MSI-X -> MSI -> IRQ.
13083  *
13084  * Return codes
13085  *      0 - successful
13086  *      other values - error
13087  **/
13088 static uint32_t
13089 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13090 {
13091         uint32_t intr_mode = LPFC_INTR_ERROR;
13092         int retval, idx;
13093
13094         if (cfg_mode == 2) {
13095                 /* Preparation before conf_msi mbox cmd */
13096                 retval = 0;
13097                 if (!retval) {
13098                         /* Now, try to enable MSI-X interrupt mode */
13099                         retval = lpfc_sli4_enable_msix(phba);
13100                         if (!retval) {
13101                                 /* Indicate initialization to MSI-X mode */
13102                                 phba->intr_type = MSIX;
13103                                 intr_mode = 2;
13104                         }
13105                 }
13106         }
13107
13108         /* Fallback to MSI if MSI-X initialization failed */
13109         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13110                 retval = lpfc_sli4_enable_msi(phba);
13111                 if (!retval) {
13112                         /* Indicate initialization to MSI mode */
13113                         phba->intr_type = MSI;
13114                         intr_mode = 1;
13115                 }
13116         }
13117
13118         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13119         if (phba->intr_type == NONE) {
13120                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13121                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13122                 if (!retval) {
13123                         struct lpfc_hba_eq_hdl *eqhdl;
13124                         unsigned int cpu;
13125
13126                         /* Indicate initialization to INTx mode */
13127                         phba->intr_type = INTx;
13128                         intr_mode = 0;
13129
13130                         eqhdl = lpfc_get_eq_hdl(0);
13131                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13132
13133                         cpu = cpumask_first(cpu_present_mask);
13134                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13135                                                 cpu);
13136                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13137                                 eqhdl = lpfc_get_eq_hdl(idx);
13138                                 eqhdl->idx = idx;
13139                         }
13140                 }
13141         }
13142         return intr_mode;
13143 }
13144
13145 /**
13146  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13147  * @phba: pointer to lpfc hba data structure.
13148  *
13149  * This routine is invoked to disable device interrupt and disassociate
13150  * the driver's interrupt handler(s) from interrupt vector(s) to device
13151  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13152  * will release the interrupt vector(s) for the message signaled interrupt.
13153  **/
13154 static void
13155 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13156 {
13157         /* Disable the currently initialized interrupt mode */
13158         if (phba->intr_type == MSIX) {
13159                 int index;
13160                 struct lpfc_hba_eq_hdl *eqhdl;
13161
13162                 /* Free up MSI-X multi-message vectors */
13163                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13164                         eqhdl = lpfc_get_eq_hdl(index);
13165                         lpfc_irq_clear_aff(eqhdl);
13166                         irq_set_affinity_hint(eqhdl->irq, NULL);
13167                         free_irq(eqhdl->irq, eqhdl);
13168                 }
13169         } else {
13170                 free_irq(phba->pcidev->irq, phba);
13171         }
13172
13173         pci_free_irq_vectors(phba->pcidev);
13174
13175         /* Reset interrupt management states */
13176         phba->intr_type = NONE;
13177         phba->sli.slistat.sli_intr = 0;
13178 }
13179
13180 /**
13181  * lpfc_unset_hba - Unset SLI3 hba device initialization
13182  * @phba: pointer to lpfc hba data structure.
13183  *
13184  * This routine is invoked to unset the HBA device initialization steps to
13185  * a device with SLI-3 interface spec.
13186  **/
13187 static void
13188 lpfc_unset_hba(struct lpfc_hba *phba)
13189 {
13190         struct lpfc_vport *vport = phba->pport;
13191         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
13192
13193         spin_lock_irq(shost->host_lock);
13194         vport->load_flag |= FC_UNLOADING;
13195         spin_unlock_irq(shost->host_lock);
13196
13197         kfree(phba->vpi_bmask);
13198         kfree(phba->vpi_ids);
13199
13200         lpfc_stop_hba_timers(phba);
13201
13202         phba->pport->work_port_events = 0;
13203
13204         lpfc_sli_hba_down(phba);
13205
13206         lpfc_sli_brdrestart(phba);
13207
13208         lpfc_sli_disable_intr(phba);
13209
13210         return;
13211 }
13212
13213 /**
13214  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13215  * @phba: Pointer to HBA context object.
13216  *
13217  * This function is called in the SLI4 code path to wait for completion
13218  * of device's XRIs exchange busy. It will check the XRI exchange busy
13219  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13220  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13221  * I/Os every 30 seconds, log error message, and wait forever. Only when
13222  * all XRI exchange busy complete, the driver unload shall proceed with
13223  * invoking the function reset ioctl mailbox command to the CNA and the
13224  * the rest of the driver unload resource release.
13225  **/
13226 static void
13227 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13228 {
13229         struct lpfc_sli4_hdw_queue *qp;
13230         int idx, ccnt;
13231         int wait_time = 0;
13232         int io_xri_cmpl = 1;
13233         int nvmet_xri_cmpl = 1;
13234         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13235
13236         /* Driver just aborted IOs during the hba_unset process.  Pause
13237          * here to give the HBA time to complete the IO and get entries
13238          * into the abts lists.
13239          */
13240         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13241
13242         /* Wait for NVME pending IO to flush back to transport. */
13243         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13244                 lpfc_nvme_wait_for_io_drain(phba);
13245
13246         ccnt = 0;
13247         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13248                 qp = &phba->sli4_hba.hdwq[idx];
13249                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13250                 if (!io_xri_cmpl) /* if list is NOT empty */
13251                         ccnt++;
13252         }
13253         if (ccnt)
13254                 io_xri_cmpl = 0;
13255
13256         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13257                 nvmet_xri_cmpl =
13258                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13259         }
13260
13261         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13262                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13263                         if (!nvmet_xri_cmpl)
13264                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13265                                                 "6424 NVMET XRI exchange busy "
13266                                                 "wait time: %d seconds.\n",
13267                                                 wait_time/1000);
13268                         if (!io_xri_cmpl)
13269                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13270                                                 "6100 IO XRI exchange busy "
13271                                                 "wait time: %d seconds.\n",
13272                                                 wait_time/1000);
13273                         if (!els_xri_cmpl)
13274                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13275                                                 "2878 ELS XRI exchange busy "
13276                                                 "wait time: %d seconds.\n",
13277                                                 wait_time/1000);
13278                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13279                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13280                 } else {
13281                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13282                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13283                 }
13284
13285                 ccnt = 0;
13286                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13287                         qp = &phba->sli4_hba.hdwq[idx];
13288                         io_xri_cmpl = list_empty(
13289                             &qp->lpfc_abts_io_buf_list);
13290                         if (!io_xri_cmpl) /* if list is NOT empty */
13291                                 ccnt++;
13292                 }
13293                 if (ccnt)
13294                         io_xri_cmpl = 0;
13295
13296                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13297                         nvmet_xri_cmpl = list_empty(
13298                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13299                 }
13300                 els_xri_cmpl =
13301                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13302
13303         }
13304 }
13305
13306 /**
13307  * lpfc_sli4_hba_unset - Unset the fcoe hba
13308  * @phba: Pointer to HBA context object.
13309  *
13310  * This function is called in the SLI4 code path to reset the HBA's FCoE
13311  * function. The caller is not required to hold any lock. This routine
13312  * issues PCI function reset mailbox command to reset the FCoE function.
13313  * At the end of the function, it calls lpfc_hba_down_post function to
13314  * free any pending commands.
13315  **/
13316 static void
13317 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13318 {
13319         int wait_cnt = 0;
13320         LPFC_MBOXQ_t *mboxq;
13321         struct pci_dev *pdev = phba->pcidev;
13322
13323         lpfc_stop_hba_timers(phba);
13324         hrtimer_cancel(&phba->cmf_timer);
13325
13326         if (phba->pport)
13327                 phba->sli4_hba.intr_enable = 0;
13328
13329         /*
13330          * Gracefully wait out the potential current outstanding asynchronous
13331          * mailbox command.
13332          */
13333
13334         /* First, block any pending async mailbox command from posted */
13335         spin_lock_irq(&phba->hbalock);
13336         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13337         spin_unlock_irq(&phba->hbalock);
13338         /* Now, trying to wait it out if we can */
13339         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13340                 msleep(10);
13341                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13342                         break;
13343         }
13344         /* Forcefully release the outstanding mailbox command if timed out */
13345         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13346                 spin_lock_irq(&phba->hbalock);
13347                 mboxq = phba->sli.mbox_active;
13348                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13349                 __lpfc_mbox_cmpl_put(phba, mboxq);
13350                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13351                 phba->sli.mbox_active = NULL;
13352                 spin_unlock_irq(&phba->hbalock);
13353         }
13354
13355         /* Abort all iocbs associated with the hba */
13356         lpfc_sli_hba_iocb_abort(phba);
13357
13358         /* Wait for completion of device XRI exchange busy */
13359         lpfc_sli4_xri_exchange_busy_wait(phba);
13360
13361         /* per-phba callback de-registration for hotplug event */
13362         if (phba->pport)
13363                 lpfc_cpuhp_remove(phba);
13364
13365         /* Disable PCI subsystem interrupt */
13366         lpfc_sli4_disable_intr(phba);
13367
13368         /* Disable SR-IOV if enabled */
13369         if (phba->cfg_sriov_nr_virtfn)
13370                 pci_disable_sriov(pdev);
13371
13372         /* Stop kthread signal shall trigger work_done one more time */
13373         kthread_stop(phba->worker_thread);
13374
13375         /* Disable FW logging to host memory */
13376         lpfc_ras_stop_fwlog(phba);
13377
13378         /* Unset the queues shared with the hardware then release all
13379          * allocated resources.
13380          */
13381         lpfc_sli4_queue_unset(phba);
13382         lpfc_sli4_queue_destroy(phba);
13383
13384         /* Reset SLI4 HBA FCoE function */
13385         lpfc_pci_function_reset(phba);
13386
13387         /* Free RAS DMA memory */
13388         if (phba->ras_fwlog.ras_enabled)
13389                 lpfc_sli4_ras_dma_free(phba);
13390
13391         /* Stop the SLI4 device port */
13392         if (phba->pport)
13393                 phba->pport->work_port_events = 0;
13394 }
13395
13396 static uint32_t
13397 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13398 {
13399         uint32_t msb = 0;
13400         uint32_t bit;
13401
13402         for (bit = 0; bit < 8; bit++) {
13403                 msb = (crc >> 31) & 1;
13404                 crc <<= 1;
13405
13406                 if (msb ^ (byte & 1)) {
13407                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13408                         crc |= 1;
13409                 }
13410                 byte >>= 1;
13411         }
13412         return crc;
13413 }
13414
13415 static uint32_t
13416 lpfc_cgn_reverse_bits(uint32_t wd)
13417 {
13418         uint32_t result = 0;
13419         uint32_t i;
13420
13421         for (i = 0; i < 32; i++) {
13422                 result <<= 1;
13423                 result |= (1 & (wd >> i));
13424         }
13425         return result;
13426 }
13427
13428 /*
13429  * The routine corresponds with the algorithm the HBA firmware
13430  * uses to validate the data integrity.
13431  */
13432 uint32_t
13433 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13434 {
13435         uint32_t  i;
13436         uint32_t result;
13437         uint8_t  *data = (uint8_t *)ptr;
13438
13439         for (i = 0; i < byteLen; ++i)
13440                 crc = lpfc_cgn_crc32(crc, data[i]);
13441
13442         result = ~lpfc_cgn_reverse_bits(crc);
13443         return result;
13444 }
13445
13446 void
13447 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13448 {
13449         struct lpfc_cgn_info *cp;
13450         struct timespec64 cmpl_time;
13451         struct tm broken;
13452         uint16_t size;
13453         uint32_t crc;
13454
13455         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13456                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13457
13458         if (!phba->cgn_i)
13459                 return;
13460         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13461
13462         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13463         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13464         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13465         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13466
13467         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13468         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13469         atomic64_set(&phba->cgn_latency_evt, 0);
13470         phba->cgn_evt_minute = 0;
13471         phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13472
13473         memset(cp, 0xff, LPFC_CGN_DATA_SIZE);
13474         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13475         cp->cgn_info_version = LPFC_CGN_INFO_V3;
13476
13477         /* cgn parameters */
13478         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13479         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13480         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13481         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13482
13483         ktime_get_real_ts64(&cmpl_time);
13484         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13485
13486         cp->cgn_info_month = broken.tm_mon + 1;
13487         cp->cgn_info_day = broken.tm_mday;
13488         cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13489         cp->cgn_info_hour = broken.tm_hour;
13490         cp->cgn_info_minute = broken.tm_min;
13491         cp->cgn_info_second = broken.tm_sec;
13492
13493         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13494                         "2643 CGNInfo Init: Start Time "
13495                         "%d/%d/%d %d:%d:%d\n",
13496                         cp->cgn_info_day, cp->cgn_info_month,
13497                         cp->cgn_info_year, cp->cgn_info_hour,
13498                         cp->cgn_info_minute, cp->cgn_info_second);
13499
13500         /* Fill in default LUN qdepth */
13501         if (phba->pport) {
13502                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13503                 cp->cgn_lunq = cpu_to_le16(size);
13504         }
13505
13506         /* last used Index initialized to 0xff already */
13507
13508         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13509         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13510         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13511         cp->cgn_info_crc = cpu_to_le32(crc);
13512
13513         phba->cgn_evt_timestamp = jiffies +
13514                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13515 }
13516
13517 void
13518 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13519 {
13520         struct lpfc_cgn_info *cp;
13521         struct timespec64 cmpl_time;
13522         struct tm broken;
13523         uint32_t crc;
13524
13525         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13526                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13527
13528         if (!phba->cgn_i)
13529                 return;
13530
13531         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13532         memset(&cp->cgn_stat_npm, 0, LPFC_CGN_STAT_SIZE);
13533
13534         ktime_get_real_ts64(&cmpl_time);
13535         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13536
13537         cp->cgn_stat_month = broken.tm_mon + 1;
13538         cp->cgn_stat_day = broken.tm_mday;
13539         cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13540         cp->cgn_stat_hour = broken.tm_hour;
13541         cp->cgn_stat_minute = broken.tm_min;
13542
13543         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13544                         "2647 CGNstat Init: Start Time "
13545                         "%d/%d/%d %d:%d\n",
13546                         cp->cgn_stat_day, cp->cgn_stat_month,
13547                         cp->cgn_stat_year, cp->cgn_stat_hour,
13548                         cp->cgn_stat_minute);
13549
13550         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13551         cp->cgn_info_crc = cpu_to_le32(crc);
13552 }
13553
13554 /**
13555  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13556  * @phba: Pointer to hba context object.
13557  * @reg: flag to determine register or unregister.
13558  */
13559 static int
13560 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13561 {
13562         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13563         union  lpfc_sli4_cfg_shdr *shdr;
13564         uint32_t shdr_status, shdr_add_status;
13565         LPFC_MBOXQ_t *mboxq;
13566         int length, rc;
13567
13568         if (!phba->cgn_i)
13569                 return -ENXIO;
13570
13571         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13572         if (!mboxq) {
13573                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13574                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13575                                 "HBA state x%x reg %d\n",
13576                                 phba->pport->port_state, reg);
13577                 return -ENOMEM;
13578         }
13579
13580         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13581                 sizeof(struct lpfc_sli4_cfg_mhdr));
13582         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13583                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13584                          LPFC_SLI4_MBX_EMBED);
13585         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13586         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13587         if (reg > 0)
13588                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13589         else
13590                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13591         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13592         reg_congestion_buf->addr_lo =
13593                 putPaddrLow(phba->cgn_i->phys);
13594         reg_congestion_buf->addr_hi =
13595                 putPaddrHigh(phba->cgn_i->phys);
13596
13597         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13598         shdr = (union lpfc_sli4_cfg_shdr *)
13599                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13600         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13601         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13602                                  &shdr->response);
13603         mempool_free(mboxq, phba->mbox_mem_pool);
13604         if (shdr_status || shdr_add_status || rc) {
13605                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13606                                 "2642 REG_CONGESTION_BUF mailbox "
13607                                 "failed with status x%x add_status x%x,"
13608                                 " mbx status x%x reg %d\n",
13609                                 shdr_status, shdr_add_status, rc, reg);
13610                 return -ENXIO;
13611         }
13612         return 0;
13613 }
13614
13615 int
13616 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13617 {
13618         lpfc_cmf_stop(phba);
13619         return __lpfc_reg_congestion_buf(phba, 0);
13620 }
13621
13622 int
13623 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13624 {
13625         return __lpfc_reg_congestion_buf(phba, 1);
13626 }
13627
13628 /**
13629  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13630  * @phba: Pointer to HBA context object.
13631  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13632  *
13633  * This function is called in the SLI4 code path to read the port's
13634  * sli4 capabilities.
13635  *
13636  * This function may be be called from any context that can block-wait
13637  * for the completion.  The expectation is that this routine is called
13638  * typically from probe_one or from the online routine.
13639  **/
13640 int
13641 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13642 {
13643         int rc;
13644         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13645         struct lpfc_pc_sli4_params *sli4_params;
13646         uint32_t mbox_tmo;
13647         int length;
13648         bool exp_wqcq_pages = true;
13649         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13650
13651         /*
13652          * By default, the driver assumes the SLI4 port requires RPI
13653          * header postings.  The SLI4_PARAM response will correct this
13654          * assumption.
13655          */
13656         phba->sli4_hba.rpi_hdrs_in_use = 1;
13657
13658         /* Read the port's SLI4 Config Parameters */
13659         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13660                   sizeof(struct lpfc_sli4_cfg_mhdr));
13661         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13662                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13663                          length, LPFC_SLI4_MBX_EMBED);
13664         if (!phba->sli4_hba.intr_enable)
13665                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13666         else {
13667                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13668                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13669         }
13670         if (unlikely(rc))
13671                 return rc;
13672         sli4_params = &phba->sli4_hba.pc_sli4_params;
13673         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13674         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13675         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13676         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13677         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13678                                              mbx_sli4_parameters);
13679         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13680                                              mbx_sli4_parameters);
13681         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13682                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13683         else
13684                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13685         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13686         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13687                                            mbx_sli4_parameters);
13688         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13689         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13690         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13691         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13692         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13693         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13694         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13695         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13696         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13697         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13698         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13699                                             mbx_sli4_parameters);
13700         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13701         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13702                                            mbx_sli4_parameters);
13703         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13704         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13705
13706         /* Check for Extended Pre-Registered SGL support */
13707         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13708
13709         /* Check for firmware nvme support */
13710         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13711                      bf_get(cfg_xib, mbx_sli4_parameters));
13712
13713         if (rc) {
13714                 /* Save this to indicate the Firmware supports NVME */
13715                 sli4_params->nvme = 1;
13716
13717                 /* Firmware NVME support, check driver FC4 NVME support */
13718                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13719                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13720                                         "6133 Disabling NVME support: "
13721                                         "FC4 type not supported: x%x\n",
13722                                         phba->cfg_enable_fc4_type);
13723                         goto fcponly;
13724                 }
13725         } else {
13726                 /* No firmware NVME support, check driver FC4 NVME support */
13727                 sli4_params->nvme = 0;
13728                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13729                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13730                                         "6101 Disabling NVME support: Not "
13731                                         "supported by firmware (%d %d) x%x\n",
13732                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13733                                         bf_get(cfg_xib, mbx_sli4_parameters),
13734                                         phba->cfg_enable_fc4_type);
13735 fcponly:
13736                         phba->nvmet_support = 0;
13737                         phba->cfg_nvmet_mrq = 0;
13738                         phba->cfg_nvme_seg_cnt = 0;
13739
13740                         /* If no FC4 type support, move to just SCSI support */
13741                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13742                                 return -ENODEV;
13743                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13744                 }
13745         }
13746
13747         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13748          * accommodate 512K and 1M IOs in a single nvme buf.
13749          */
13750         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13751                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13752
13753         /* Enable embedded Payload BDE if support is indicated */
13754         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13755                 phba->cfg_enable_pbde = 1;
13756         else
13757                 phba->cfg_enable_pbde = 0;
13758
13759         /*
13760          * To support Suppress Response feature we must satisfy 3 conditions.
13761          * lpfc_suppress_rsp module parameter must be set (default).
13762          * In SLI4-Parameters Descriptor:
13763          * Extended Inline Buffers (XIB) must be supported.
13764          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13765          * (double negative).
13766          */
13767         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13768             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13769                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13770         else
13771                 phba->cfg_suppress_rsp = 0;
13772
13773         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13774                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13775
13776         /* Make sure that sge_supp_len can be handled by the driver */
13777         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13778                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13779
13780         /*
13781          * Check whether the adapter supports an embedded copy of the
13782          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13783          * to use this option, 128-byte WQEs must be used.
13784          */
13785         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13786                 phba->fcp_embed_io = 1;
13787         else
13788                 phba->fcp_embed_io = 0;
13789
13790         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13791                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13792                         bf_get(cfg_xib, mbx_sli4_parameters),
13793                         phba->cfg_enable_pbde,
13794                         phba->fcp_embed_io, sli4_params->nvme,
13795                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13796
13797         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13798             LPFC_SLI_INTF_IF_TYPE_2) &&
13799             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13800                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13801                 exp_wqcq_pages = false;
13802
13803         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13804             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13805             exp_wqcq_pages &&
13806             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13807                 phba->enab_exp_wqcq_pages = 1;
13808         else
13809                 phba->enab_exp_wqcq_pages = 0;
13810         /*
13811          * Check if the SLI port supports MDS Diagnostics
13812          */
13813         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13814                 phba->mds_diags_support = 1;
13815         else
13816                 phba->mds_diags_support = 0;
13817
13818         /*
13819          * Check if the SLI port supports NSLER
13820          */
13821         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13822                 phba->nsler = 1;
13823         else
13824                 phba->nsler = 0;
13825
13826         return 0;
13827 }
13828
13829 /**
13830  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13831  * @pdev: pointer to PCI device
13832  * @pid: pointer to PCI device identifier
13833  *
13834  * This routine is to be called to attach a device with SLI-3 interface spec
13835  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13836  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13837  * information of the device and driver to see if the driver state that it can
13838  * support this kind of device. If the match is successful, the driver core
13839  * invokes this routine. If this routine determines it can claim the HBA, it
13840  * does all the initialization that it needs to do to handle the HBA properly.
13841  *
13842  * Return code
13843  *      0 - driver can claim the device
13844  *      negative value - driver can not claim the device
13845  **/
13846 static int
13847 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13848 {
13849         struct lpfc_hba   *phba;
13850         struct lpfc_vport *vport = NULL;
13851         struct Scsi_Host  *shost = NULL;
13852         int error;
13853         uint32_t cfg_mode, intr_mode;
13854
13855         /* Allocate memory for HBA structure */
13856         phba = lpfc_hba_alloc(pdev);
13857         if (!phba)
13858                 return -ENOMEM;
13859
13860         /* Perform generic PCI device enabling operation */
13861         error = lpfc_enable_pci_dev(phba);
13862         if (error)
13863                 goto out_free_phba;
13864
13865         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13866         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13867         if (error)
13868                 goto out_disable_pci_dev;
13869
13870         /* Set up SLI-3 specific device PCI memory space */
13871         error = lpfc_sli_pci_mem_setup(phba);
13872         if (error) {
13873                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13874                                 "1402 Failed to set up pci memory space.\n");
13875                 goto out_disable_pci_dev;
13876         }
13877
13878         /* Set up SLI-3 specific device driver resources */
13879         error = lpfc_sli_driver_resource_setup(phba);
13880         if (error) {
13881                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13882                                 "1404 Failed to set up driver resource.\n");
13883                 goto out_unset_pci_mem_s3;
13884         }
13885
13886         /* Initialize and populate the iocb list per host */
13887
13888         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13889         if (error) {
13890                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13891                                 "1405 Failed to initialize iocb list.\n");
13892                 goto out_unset_driver_resource_s3;
13893         }
13894
13895         /* Set up common device driver resources */
13896         error = lpfc_setup_driver_resource_phase2(phba);
13897         if (error) {
13898                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13899                                 "1406 Failed to set up driver resource.\n");
13900                 goto out_free_iocb_list;
13901         }
13902
13903         /* Get the default values for Model Name and Description */
13904         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13905
13906         /* Create SCSI host to the physical port */
13907         error = lpfc_create_shost(phba);
13908         if (error) {
13909                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13910                                 "1407 Failed to create scsi host.\n");
13911                 goto out_unset_driver_resource;
13912         }
13913
13914         /* Configure sysfs attributes */
13915         vport = phba->pport;
13916         error = lpfc_alloc_sysfs_attr(vport);
13917         if (error) {
13918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13919                                 "1476 Failed to allocate sysfs attr\n");
13920                 goto out_destroy_shost;
13921         }
13922
13923         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13924         /* Now, trying to enable interrupt and bring up the device */
13925         cfg_mode = phba->cfg_use_msi;
13926         while (true) {
13927                 /* Put device to a known state before enabling interrupt */
13928                 lpfc_stop_port(phba);
13929                 /* Configure and enable interrupt */
13930                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13931                 if (intr_mode == LPFC_INTR_ERROR) {
13932                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13933                                         "0431 Failed to enable interrupt.\n");
13934                         error = -ENODEV;
13935                         goto out_free_sysfs_attr;
13936                 }
13937                 /* SLI-3 HBA setup */
13938                 if (lpfc_sli_hba_setup(phba)) {
13939                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13940                                         "1477 Failed to set up hba\n");
13941                         error = -ENODEV;
13942                         goto out_remove_device;
13943                 }
13944
13945                 /* Wait 50ms for the interrupts of previous mailbox commands */
13946                 msleep(50);
13947                 /* Check active interrupts on message signaled interrupts */
13948                 if (intr_mode == 0 ||
13949                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13950                         /* Log the current active interrupt mode */
13951                         phba->intr_mode = intr_mode;
13952                         lpfc_log_intr_mode(phba, intr_mode);
13953                         break;
13954                 } else {
13955                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13956                                         "0447 Configure interrupt mode (%d) "
13957                                         "failed active interrupt test.\n",
13958                                         intr_mode);
13959                         /* Disable the current interrupt mode */
13960                         lpfc_sli_disable_intr(phba);
13961                         /* Try next level of interrupt mode */
13962                         cfg_mode = --intr_mode;
13963                 }
13964         }
13965
13966         /* Perform post initialization setup */
13967         lpfc_post_init_setup(phba);
13968
13969         /* Check if there are static vports to be created. */
13970         lpfc_create_static_vport(phba);
13971
13972         return 0;
13973
13974 out_remove_device:
13975         lpfc_unset_hba(phba);
13976 out_free_sysfs_attr:
13977         lpfc_free_sysfs_attr(vport);
13978 out_destroy_shost:
13979         lpfc_destroy_shost(phba);
13980 out_unset_driver_resource:
13981         lpfc_unset_driver_resource_phase2(phba);
13982 out_free_iocb_list:
13983         lpfc_free_iocb_list(phba);
13984 out_unset_driver_resource_s3:
13985         lpfc_sli_driver_resource_unset(phba);
13986 out_unset_pci_mem_s3:
13987         lpfc_sli_pci_mem_unset(phba);
13988 out_disable_pci_dev:
13989         lpfc_disable_pci_dev(phba);
13990         if (shost)
13991                 scsi_host_put(shost);
13992 out_free_phba:
13993         lpfc_hba_free(phba);
13994         return error;
13995 }
13996
13997 /**
13998  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
13999  * @pdev: pointer to PCI device
14000  *
14001  * This routine is to be called to disattach a device with SLI-3 interface
14002  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
14003  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14004  * device to be removed from the PCI subsystem properly.
14005  **/
14006 static void
14007 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
14008 {
14009         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
14010         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14011         struct lpfc_vport **vports;
14012         struct lpfc_hba   *phba = vport->phba;
14013         int i;
14014
14015         spin_lock_irq(&phba->hbalock);
14016         vport->load_flag |= FC_UNLOADING;
14017         spin_unlock_irq(&phba->hbalock);
14018
14019         lpfc_free_sysfs_attr(vport);
14020
14021         /* Release all the vports against this physical port */
14022         vports = lpfc_create_vport_work_array(phba);
14023         if (vports != NULL)
14024                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14025                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14026                                 continue;
14027                         fc_vport_terminate(vports[i]->fc_vport);
14028                 }
14029         lpfc_destroy_vport_work_array(phba, vports);
14030
14031         /* Remove FC host with the physical port */
14032         fc_remove_host(shost);
14033         scsi_remove_host(shost);
14034
14035         /* Clean up all nodes, mailboxes and IOs. */
14036         lpfc_cleanup(vport);
14037
14038         /*
14039          * Bring down the SLI Layer. This step disable all interrupts,
14040          * clears the rings, discards all mailbox commands, and resets
14041          * the HBA.
14042          */
14043
14044         /* HBA interrupt will be disabled after this call */
14045         lpfc_sli_hba_down(phba);
14046         /* Stop kthread signal shall trigger work_done one more time */
14047         kthread_stop(phba->worker_thread);
14048         /* Final cleanup of txcmplq and reset the HBA */
14049         lpfc_sli_brdrestart(phba);
14050
14051         kfree(phba->vpi_bmask);
14052         kfree(phba->vpi_ids);
14053
14054         lpfc_stop_hba_timers(phba);
14055         spin_lock_irq(&phba->port_list_lock);
14056         list_del_init(&vport->listentry);
14057         spin_unlock_irq(&phba->port_list_lock);
14058
14059         lpfc_debugfs_terminate(vport);
14060
14061         /* Disable SR-IOV if enabled */
14062         if (phba->cfg_sriov_nr_virtfn)
14063                 pci_disable_sriov(pdev);
14064
14065         /* Disable interrupt */
14066         lpfc_sli_disable_intr(phba);
14067
14068         scsi_host_put(shost);
14069
14070         /*
14071          * Call scsi_free before mem_free since scsi bufs are released to their
14072          * corresponding pools here.
14073          */
14074         lpfc_scsi_free(phba);
14075         lpfc_free_iocb_list(phba);
14076
14077         lpfc_mem_free_all(phba);
14078
14079         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
14080                           phba->hbqslimp.virt, phba->hbqslimp.phys);
14081
14082         /* Free resources associated with SLI2 interface */
14083         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
14084                           phba->slim2p.virt, phba->slim2p.phys);
14085
14086         /* unmap adapter SLIM and Control Registers */
14087         iounmap(phba->ctrl_regs_memmap_p);
14088         iounmap(phba->slim_memmap_p);
14089
14090         lpfc_hba_free(phba);
14091
14092         pci_release_mem_regions(pdev);
14093         pci_disable_device(pdev);
14094 }
14095
14096 /**
14097  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14098  * @dev_d: pointer to device
14099  *
14100  * This routine is to be called from the kernel's PCI subsystem to support
14101  * system Power Management (PM) to device with SLI-3 interface spec. When
14102  * PM invokes this method, it quiesces the device by stopping the driver's
14103  * worker thread for the device, turning off device's interrupt and DMA,
14104  * and bring the device offline. Note that as the driver implements the
14105  * minimum PM requirements to a power-aware driver's PM support for the
14106  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14107  * to the suspend() method call will be treated as SUSPEND and the driver will
14108  * fully reinitialize its device during resume() method call, the driver will
14109  * set device to PCI_D3hot state in PCI config space instead of setting it
14110  * according to the @msg provided by the PM.
14111  *
14112  * Return code
14113  *      0 - driver suspended the device
14114  *      Error otherwise
14115  **/
14116 static int __maybe_unused
14117 lpfc_pci_suspend_one_s3(struct device *dev_d)
14118 {
14119         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14120         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14121
14122         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14123                         "0473 PCI device Power Management suspend.\n");
14124
14125         /* Bring down the device */
14126         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14127         lpfc_offline(phba);
14128         kthread_stop(phba->worker_thread);
14129
14130         /* Disable interrupt from device */
14131         lpfc_sli_disable_intr(phba);
14132
14133         return 0;
14134 }
14135
14136 /**
14137  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14138  * @dev_d: pointer to device
14139  *
14140  * This routine is to be called from the kernel's PCI subsystem to support
14141  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14142  * invokes this method, it restores the device's PCI config space state and
14143  * fully reinitializes the device and brings it online. Note that as the
14144  * driver implements the minimum PM requirements to a power-aware driver's
14145  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14146  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14147  * driver will fully reinitialize its device during resume() method call,
14148  * the device will be set to PCI_D0 directly in PCI config space before
14149  * restoring the state.
14150  *
14151  * Return code
14152  *      0 - driver suspended the device
14153  *      Error otherwise
14154  **/
14155 static int __maybe_unused
14156 lpfc_pci_resume_one_s3(struct device *dev_d)
14157 {
14158         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14159         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14160         uint32_t intr_mode;
14161         int error;
14162
14163         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14164                         "0452 PCI device Power Management resume.\n");
14165
14166         /* Startup the kernel thread for this host adapter. */
14167         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14168                                         "lpfc_worker_%d", phba->brd_no);
14169         if (IS_ERR(phba->worker_thread)) {
14170                 error = PTR_ERR(phba->worker_thread);
14171                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14172                                 "0434 PM resume failed to start worker "
14173                                 "thread: error=x%x.\n", error);
14174                 return error;
14175         }
14176
14177         /* Init cpu_map array */
14178         lpfc_cpu_map_array_init(phba);
14179         /* Init hba_eq_hdl array */
14180         lpfc_hba_eq_hdl_array_init(phba);
14181         /* Configure and enable interrupt */
14182         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14183         if (intr_mode == LPFC_INTR_ERROR) {
14184                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14185                                 "0430 PM resume Failed to enable interrupt\n");
14186                 return -EIO;
14187         } else
14188                 phba->intr_mode = intr_mode;
14189
14190         /* Restart HBA and bring it online */
14191         lpfc_sli_brdrestart(phba);
14192         lpfc_online(phba);
14193
14194         /* Log the current active interrupt mode */
14195         lpfc_log_intr_mode(phba, phba->intr_mode);
14196
14197         return 0;
14198 }
14199
14200 /**
14201  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14202  * @phba: pointer to lpfc hba data structure.
14203  *
14204  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14205  * aborts all the outstanding SCSI I/Os to the pci device.
14206  **/
14207 static void
14208 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14209 {
14210         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14211                         "2723 PCI channel I/O abort preparing for recovery\n");
14212
14213         /*
14214          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14215          * and let the SCSI mid-layer to retry them to recover.
14216          */
14217         lpfc_sli_abort_fcp_rings(phba);
14218 }
14219
14220 /**
14221  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14222  * @phba: pointer to lpfc hba data structure.
14223  *
14224  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14225  * disables the device interrupt and pci device, and aborts the internal FCP
14226  * pending I/Os.
14227  **/
14228 static void
14229 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14230 {
14231         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14232                         "2710 PCI channel disable preparing for reset\n");
14233
14234         /* Block any management I/Os to the device */
14235         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14236
14237         /* Block all SCSI devices' I/Os on the host */
14238         lpfc_scsi_dev_block(phba);
14239
14240         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14241         lpfc_sli_flush_io_rings(phba);
14242
14243         /* stop all timers */
14244         lpfc_stop_hba_timers(phba);
14245
14246         /* Disable interrupt and pci device */
14247         lpfc_sli_disable_intr(phba);
14248         pci_disable_device(phba->pcidev);
14249 }
14250
14251 /**
14252  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14253  * @phba: pointer to lpfc hba data structure.
14254  *
14255  * This routine is called to prepare the SLI3 device for PCI slot permanently
14256  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14257  * pending I/Os.
14258  **/
14259 static void
14260 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14261 {
14262         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14263                         "2711 PCI channel permanent disable for failure\n");
14264         /* Block all SCSI devices' I/Os on the host */
14265         lpfc_scsi_dev_block(phba);
14266
14267         /* stop all timers */
14268         lpfc_stop_hba_timers(phba);
14269
14270         /* Clean up all driver's outstanding SCSI I/Os */
14271         lpfc_sli_flush_io_rings(phba);
14272 }
14273
14274 /**
14275  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14276  * @pdev: pointer to PCI device.
14277  * @state: the current PCI connection state.
14278  *
14279  * This routine is called from the PCI subsystem for I/O error handling to
14280  * device with SLI-3 interface spec. This function is called by the PCI
14281  * subsystem after a PCI bus error affecting this device has been detected.
14282  * When this function is invoked, it will need to stop all the I/Os and
14283  * interrupt(s) to the device. Once that is done, it will return
14284  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14285  * as desired.
14286  *
14287  * Return codes
14288  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14289  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14290  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14291  **/
14292 static pci_ers_result_t
14293 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14294 {
14295         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14296         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14297
14298         switch (state) {
14299         case pci_channel_io_normal:
14300                 /* Non-fatal error, prepare for recovery */
14301                 lpfc_sli_prep_dev_for_recover(phba);
14302                 return PCI_ERS_RESULT_CAN_RECOVER;
14303         case pci_channel_io_frozen:
14304                 /* Fatal error, prepare for slot reset */
14305                 lpfc_sli_prep_dev_for_reset(phba);
14306                 return PCI_ERS_RESULT_NEED_RESET;
14307         case pci_channel_io_perm_failure:
14308                 /* Permanent failure, prepare for device down */
14309                 lpfc_sli_prep_dev_for_perm_failure(phba);
14310                 return PCI_ERS_RESULT_DISCONNECT;
14311         default:
14312                 /* Unknown state, prepare and request slot reset */
14313                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14314                                 "0472 Unknown PCI error state: x%x\n", state);
14315                 lpfc_sli_prep_dev_for_reset(phba);
14316                 return PCI_ERS_RESULT_NEED_RESET;
14317         }
14318 }
14319
14320 /**
14321  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14322  * @pdev: pointer to PCI device.
14323  *
14324  * This routine is called from the PCI subsystem for error handling to
14325  * device with SLI-3 interface spec. This is called after PCI bus has been
14326  * reset to restart the PCI card from scratch, as if from a cold-boot.
14327  * During the PCI subsystem error recovery, after driver returns
14328  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14329  * recovery and then call this routine before calling the .resume method
14330  * to recover the device. This function will initialize the HBA device,
14331  * enable the interrupt, but it will just put the HBA to offline state
14332  * without passing any I/O traffic.
14333  *
14334  * Return codes
14335  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14336  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14337  */
14338 static pci_ers_result_t
14339 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14340 {
14341         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14342         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14343         struct lpfc_sli *psli = &phba->sli;
14344         uint32_t intr_mode;
14345
14346         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14347         if (pci_enable_device_mem(pdev)) {
14348                 printk(KERN_ERR "lpfc: Cannot re-enable "
14349                         "PCI device after reset.\n");
14350                 return PCI_ERS_RESULT_DISCONNECT;
14351         }
14352
14353         pci_restore_state(pdev);
14354
14355         /*
14356          * As the new kernel behavior of pci_restore_state() API call clears
14357          * device saved_state flag, need to save the restored state again.
14358          */
14359         pci_save_state(pdev);
14360
14361         if (pdev->is_busmaster)
14362                 pci_set_master(pdev);
14363
14364         spin_lock_irq(&phba->hbalock);
14365         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14366         spin_unlock_irq(&phba->hbalock);
14367
14368         /* Configure and enable interrupt */
14369         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14370         if (intr_mode == LPFC_INTR_ERROR) {
14371                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14372                                 "0427 Cannot re-enable interrupt after "
14373                                 "slot reset.\n");
14374                 return PCI_ERS_RESULT_DISCONNECT;
14375         } else
14376                 phba->intr_mode = intr_mode;
14377
14378         /* Take device offline, it will perform cleanup */
14379         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14380         lpfc_offline(phba);
14381         lpfc_sli_brdrestart(phba);
14382
14383         /* Log the current active interrupt mode */
14384         lpfc_log_intr_mode(phba, phba->intr_mode);
14385
14386         return PCI_ERS_RESULT_RECOVERED;
14387 }
14388
14389 /**
14390  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14391  * @pdev: pointer to PCI device
14392  *
14393  * This routine is called from the PCI subsystem for error handling to device
14394  * with SLI-3 interface spec. It is called when kernel error recovery tells
14395  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14396  * error recovery. After this call, traffic can start to flow from this device
14397  * again.
14398  */
14399 static void
14400 lpfc_io_resume_s3(struct pci_dev *pdev)
14401 {
14402         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14403         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14404
14405         /* Bring device online, it will be no-op for non-fatal error resume */
14406         lpfc_online(phba);
14407 }
14408
14409 /**
14410  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14411  * @phba: pointer to lpfc hba data structure.
14412  *
14413  * returns the number of ELS/CT IOCBs to reserve
14414  **/
14415 int
14416 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14417 {
14418         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14419
14420         if (phba->sli_rev == LPFC_SLI_REV4) {
14421                 if (max_xri <= 100)
14422                         return 10;
14423                 else if (max_xri <= 256)
14424                         return 25;
14425                 else if (max_xri <= 512)
14426                         return 50;
14427                 else if (max_xri <= 1024)
14428                         return 100;
14429                 else if (max_xri <= 1536)
14430                         return 150;
14431                 else if (max_xri <= 2048)
14432                         return 200;
14433                 else
14434                         return 250;
14435         } else
14436                 return 0;
14437 }
14438
14439 /**
14440  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14441  * @phba: pointer to lpfc hba data structure.
14442  *
14443  * returns the number of ELS/CT + NVMET IOCBs to reserve
14444  **/
14445 int
14446 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14447 {
14448         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14449
14450         if (phba->nvmet_support)
14451                 max_xri += LPFC_NVMET_BUF_POST;
14452         return max_xri;
14453 }
14454
14455
14456 static int
14457 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14458         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14459         const struct firmware *fw)
14460 {
14461         int rc;
14462         u8 sli_family;
14463
14464         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14465         /* Three cases:  (1) FW was not supported on the detected adapter.
14466          * (2) FW update has been locked out administratively.
14467          * (3) Some other error during FW update.
14468          * In each case, an unmaskable message is written to the console
14469          * for admin diagnosis.
14470          */
14471         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14472             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14473              magic_number != MAGIC_NUMBER_G6) ||
14474             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14475              magic_number != MAGIC_NUMBER_G7) ||
14476             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14477              magic_number != MAGIC_NUMBER_G7P)) {
14478                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14479                                 "3030 This firmware version is not supported on"
14480                                 " this HBA model. Device:%x Magic:%x Type:%x "
14481                                 "ID:%x Size %d %zd\n",
14482                                 phba->pcidev->device, magic_number, ftype, fid,
14483                                 fsize, fw->size);
14484                 rc = -EINVAL;
14485         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14486                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14487                                 "3021 Firmware downloads have been prohibited "
14488                                 "by a system configuration setting on "
14489                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14490                                 "%zd\n",
14491                                 phba->pcidev->device, magic_number, ftype, fid,
14492                                 fsize, fw->size);
14493                 rc = -EACCES;
14494         } else {
14495                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14496                                 "3022 FW Download failed. Add Status x%x "
14497                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14498                                 "%zd\n",
14499                                 offset, phba->pcidev->device, magic_number,
14500                                 ftype, fid, fsize, fw->size);
14501                 rc = -EIO;
14502         }
14503         return rc;
14504 }
14505
14506 /**
14507  * lpfc_write_firmware - attempt to write a firmware image to the port
14508  * @fw: pointer to firmware image returned from request_firmware.
14509  * @context: pointer to firmware image returned from request_firmware.
14510  *
14511  **/
14512 static void
14513 lpfc_write_firmware(const struct firmware *fw, void *context)
14514 {
14515         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14516         char fwrev[FW_REV_STR_SIZE];
14517         struct lpfc_grp_hdr *image;
14518         struct list_head dma_buffer_list;
14519         int i, rc = 0;
14520         struct lpfc_dmabuf *dmabuf, *next;
14521         uint32_t offset = 0, temp_offset = 0;
14522         uint32_t magic_number, ftype, fid, fsize;
14523
14524         /* It can be null in no-wait mode, sanity check */
14525         if (!fw) {
14526                 rc = -ENXIO;
14527                 goto out;
14528         }
14529         image = (struct lpfc_grp_hdr *)fw->data;
14530
14531         magic_number = be32_to_cpu(image->magic_number);
14532         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14533         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14534         fsize = be32_to_cpu(image->size);
14535
14536         INIT_LIST_HEAD(&dma_buffer_list);
14537         lpfc_decode_firmware_rev(phba, fwrev, 1);
14538         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14539                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14540                                 "3023 Updating Firmware, Current Version:%s "
14541                                 "New Version:%s\n",
14542                                 fwrev, image->revision);
14543                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14544                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14545                                          GFP_KERNEL);
14546                         if (!dmabuf) {
14547                                 rc = -ENOMEM;
14548                                 goto release_out;
14549                         }
14550                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14551                                                           SLI4_PAGE_SIZE,
14552                                                           &dmabuf->phys,
14553                                                           GFP_KERNEL);
14554                         if (!dmabuf->virt) {
14555                                 kfree(dmabuf);
14556                                 rc = -ENOMEM;
14557                                 goto release_out;
14558                         }
14559                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14560                 }
14561                 while (offset < fw->size) {
14562                         temp_offset = offset;
14563                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14564                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14565                                         memcpy(dmabuf->virt,
14566                                                fw->data + temp_offset,
14567                                                fw->size - temp_offset);
14568                                         temp_offset = fw->size;
14569                                         break;
14570                                 }
14571                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14572                                        SLI4_PAGE_SIZE);
14573                                 temp_offset += SLI4_PAGE_SIZE;
14574                         }
14575                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14576                                     (fw->size - offset), &offset);
14577                         if (rc) {
14578                                 rc = lpfc_log_write_firmware_error(phba, offset,
14579                                                                    magic_number,
14580                                                                    ftype,
14581                                                                    fid,
14582                                                                    fsize,
14583                                                                    fw);
14584                                 goto release_out;
14585                         }
14586                 }
14587                 rc = offset;
14588         } else
14589                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14590                                 "3029 Skipped Firmware update, Current "
14591                                 "Version:%s New Version:%s\n",
14592                                 fwrev, image->revision);
14593
14594 release_out:
14595         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14596                 list_del(&dmabuf->list);
14597                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14598                                   dmabuf->virt, dmabuf->phys);
14599                 kfree(dmabuf);
14600         }
14601         release_firmware(fw);
14602 out:
14603         if (rc < 0)
14604                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14605                                 "3062 Firmware update error, status %d.\n", rc);
14606         else
14607                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14608                                 "3024 Firmware update success: size %d.\n", rc);
14609 }
14610
14611 /**
14612  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14613  * @phba: pointer to lpfc hba data structure.
14614  * @fw_upgrade: which firmware to update.
14615  *
14616  * This routine is called to perform Linux generic firmware upgrade on device
14617  * that supports such feature.
14618  **/
14619 int
14620 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14621 {
14622         uint8_t file_name[ELX_MODEL_NAME_SIZE];
14623         int ret;
14624         const struct firmware *fw;
14625
14626         /* Only supported on SLI4 interface type 2 for now */
14627         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14628             LPFC_SLI_INTF_IF_TYPE_2)
14629                 return -EPERM;
14630
14631         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14632
14633         if (fw_upgrade == INT_FW_UPGRADE) {
14634                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14635                                         file_name, &phba->pcidev->dev,
14636                                         GFP_KERNEL, (void *)phba,
14637                                         lpfc_write_firmware);
14638         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14639                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14640                 if (!ret)
14641                         lpfc_write_firmware(fw, (void *)phba);
14642         } else {
14643                 ret = -EINVAL;
14644         }
14645
14646         return ret;
14647 }
14648
14649 /**
14650  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14651  * @pdev: pointer to PCI device
14652  * @pid: pointer to PCI device identifier
14653  *
14654  * This routine is called from the kernel's PCI subsystem to device with
14655  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14656  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14657  * information of the device and driver to see if the driver state that it
14658  * can support this kind of device. If the match is successful, the driver
14659  * core invokes this routine. If this routine determines it can claim the HBA,
14660  * it does all the initialization that it needs to do to handle the HBA
14661  * properly.
14662  *
14663  * Return code
14664  *      0 - driver can claim the device
14665  *      negative value - driver can not claim the device
14666  **/
14667 static int
14668 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14669 {
14670         struct lpfc_hba   *phba;
14671         struct lpfc_vport *vport = NULL;
14672         struct Scsi_Host  *shost = NULL;
14673         int error;
14674         uint32_t cfg_mode, intr_mode;
14675
14676         /* Allocate memory for HBA structure */
14677         phba = lpfc_hba_alloc(pdev);
14678         if (!phba)
14679                 return -ENOMEM;
14680
14681         INIT_LIST_HEAD(&phba->poll_list);
14682
14683         /* Perform generic PCI device enabling operation */
14684         error = lpfc_enable_pci_dev(phba);
14685         if (error)
14686                 goto out_free_phba;
14687
14688         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14689         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14690         if (error)
14691                 goto out_disable_pci_dev;
14692
14693         /* Set up SLI-4 specific device PCI memory space */
14694         error = lpfc_sli4_pci_mem_setup(phba);
14695         if (error) {
14696                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14697                                 "1410 Failed to set up pci memory space.\n");
14698                 goto out_disable_pci_dev;
14699         }
14700
14701         /* Set up SLI-4 Specific device driver resources */
14702         error = lpfc_sli4_driver_resource_setup(phba);
14703         if (error) {
14704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14705                                 "1412 Failed to set up driver resource.\n");
14706                 goto out_unset_pci_mem_s4;
14707         }
14708
14709         INIT_LIST_HEAD(&phba->active_rrq_list);
14710         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14711
14712         /* Set up common device driver resources */
14713         error = lpfc_setup_driver_resource_phase2(phba);
14714         if (error) {
14715                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14716                                 "1414 Failed to set up driver resource.\n");
14717                 goto out_unset_driver_resource_s4;
14718         }
14719
14720         /* Get the default values for Model Name and Description */
14721         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14722
14723         /* Now, trying to enable interrupt and bring up the device */
14724         cfg_mode = phba->cfg_use_msi;
14725
14726         /* Put device to a known state before enabling interrupt */
14727         phba->pport = NULL;
14728         lpfc_stop_port(phba);
14729
14730         /* Init cpu_map array */
14731         lpfc_cpu_map_array_init(phba);
14732
14733         /* Init hba_eq_hdl array */
14734         lpfc_hba_eq_hdl_array_init(phba);
14735
14736         /* Configure and enable interrupt */
14737         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14738         if (intr_mode == LPFC_INTR_ERROR) {
14739                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14740                                 "0426 Failed to enable interrupt.\n");
14741                 error = -ENODEV;
14742                 goto out_unset_driver_resource;
14743         }
14744         /* Default to single EQ for non-MSI-X */
14745         if (phba->intr_type != MSIX) {
14746                 phba->cfg_irq_chann = 1;
14747                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14748                         if (phba->nvmet_support)
14749                                 phba->cfg_nvmet_mrq = 1;
14750                 }
14751         }
14752         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14753
14754         /* Create SCSI host to the physical port */
14755         error = lpfc_create_shost(phba);
14756         if (error) {
14757                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14758                                 "1415 Failed to create scsi host.\n");
14759                 goto out_disable_intr;
14760         }
14761         vport = phba->pport;
14762         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14763
14764         /* Configure sysfs attributes */
14765         error = lpfc_alloc_sysfs_attr(vport);
14766         if (error) {
14767                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14768                                 "1416 Failed to allocate sysfs attr\n");
14769                 goto out_destroy_shost;
14770         }
14771
14772         /* Set up SLI-4 HBA */
14773         if (lpfc_sli4_hba_setup(phba)) {
14774                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14775                                 "1421 Failed to set up hba\n");
14776                 error = -ENODEV;
14777                 goto out_free_sysfs_attr;
14778         }
14779
14780         /* Log the current active interrupt mode */
14781         phba->intr_mode = intr_mode;
14782         lpfc_log_intr_mode(phba, intr_mode);
14783
14784         /* Perform post initialization setup */
14785         lpfc_post_init_setup(phba);
14786
14787         /* NVME support in FW earlier in the driver load corrects the
14788          * FC4 type making a check for nvme_support unnecessary.
14789          */
14790         if (phba->nvmet_support == 0) {
14791                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14792                         /* Create NVME binding with nvme_fc_transport. This
14793                          * ensures the vport is initialized.  If the localport
14794                          * create fails, it should not unload the driver to
14795                          * support field issues.
14796                          */
14797                         error = lpfc_nvme_create_localport(vport);
14798                         if (error) {
14799                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14800                                                 "6004 NVME registration "
14801                                                 "failed, error x%x\n",
14802                                                 error);
14803                         }
14804                 }
14805         }
14806
14807         /* check for firmware upgrade or downgrade */
14808         if (phba->cfg_request_firmware_upgrade)
14809                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14810
14811         /* Check if there are static vports to be created. */
14812         lpfc_create_static_vport(phba);
14813
14814         /* Enable RAS FW log support */
14815         lpfc_sli4_ras_setup(phba);
14816
14817         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14818         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14819
14820         return 0;
14821
14822 out_free_sysfs_attr:
14823         lpfc_free_sysfs_attr(vport);
14824 out_destroy_shost:
14825         lpfc_destroy_shost(phba);
14826 out_disable_intr:
14827         lpfc_sli4_disable_intr(phba);
14828 out_unset_driver_resource:
14829         lpfc_unset_driver_resource_phase2(phba);
14830 out_unset_driver_resource_s4:
14831         lpfc_sli4_driver_resource_unset(phba);
14832 out_unset_pci_mem_s4:
14833         lpfc_sli4_pci_mem_unset(phba);
14834 out_disable_pci_dev:
14835         lpfc_disable_pci_dev(phba);
14836         if (shost)
14837                 scsi_host_put(shost);
14838 out_free_phba:
14839         lpfc_hba_free(phba);
14840         return error;
14841 }
14842
14843 /**
14844  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14845  * @pdev: pointer to PCI device
14846  *
14847  * This routine is called from the kernel's PCI subsystem to device with
14848  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14849  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14850  * device to be removed from the PCI subsystem properly.
14851  **/
14852 static void
14853 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14854 {
14855         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14856         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14857         struct lpfc_vport **vports;
14858         struct lpfc_hba *phba = vport->phba;
14859         int i;
14860
14861         /* Mark the device unloading flag */
14862         spin_lock_irq(&phba->hbalock);
14863         vport->load_flag |= FC_UNLOADING;
14864         spin_unlock_irq(&phba->hbalock);
14865         if (phba->cgn_i)
14866                 lpfc_unreg_congestion_buf(phba);
14867
14868         lpfc_free_sysfs_attr(vport);
14869
14870         /* Release all the vports against this physical port */
14871         vports = lpfc_create_vport_work_array(phba);
14872         if (vports != NULL)
14873                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14874                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14875                                 continue;
14876                         fc_vport_terminate(vports[i]->fc_vport);
14877                 }
14878         lpfc_destroy_vport_work_array(phba, vports);
14879
14880         /* Remove FC host with the physical port */
14881         fc_remove_host(shost);
14882         scsi_remove_host(shost);
14883
14884         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14885          * localports are destroyed after to cleanup all transport memory.
14886          */
14887         lpfc_cleanup(vport);
14888         lpfc_nvmet_destroy_targetport(phba);
14889         lpfc_nvme_destroy_localport(vport);
14890
14891         /* De-allocate multi-XRI pools */
14892         if (phba->cfg_xri_rebalancing)
14893                 lpfc_destroy_multixri_pools(phba);
14894
14895         /*
14896          * Bring down the SLI Layer. This step disables all interrupts,
14897          * clears the rings, discards all mailbox commands, and resets
14898          * the HBA FCoE function.
14899          */
14900         lpfc_debugfs_terminate(vport);
14901
14902         lpfc_stop_hba_timers(phba);
14903         spin_lock_irq(&phba->port_list_lock);
14904         list_del_init(&vport->listentry);
14905         spin_unlock_irq(&phba->port_list_lock);
14906
14907         /* Perform scsi free before driver resource_unset since scsi
14908          * buffers are released to their corresponding pools here.
14909          */
14910         lpfc_io_free(phba);
14911         lpfc_free_iocb_list(phba);
14912         lpfc_sli4_hba_unset(phba);
14913
14914         lpfc_unset_driver_resource_phase2(phba);
14915         lpfc_sli4_driver_resource_unset(phba);
14916
14917         /* Unmap adapter Control and Doorbell registers */
14918         lpfc_sli4_pci_mem_unset(phba);
14919
14920         /* Release PCI resources and disable device's PCI function */
14921         scsi_host_put(shost);
14922         lpfc_disable_pci_dev(phba);
14923
14924         /* Finally, free the driver's device data structure */
14925         lpfc_hba_free(phba);
14926
14927         return;
14928 }
14929
14930 /**
14931  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14932  * @dev_d: pointer to device
14933  *
14934  * This routine is called from the kernel's PCI subsystem to support system
14935  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14936  * this method, it quiesces the device by stopping the driver's worker
14937  * thread for the device, turning off device's interrupt and DMA, and bring
14938  * the device offline. Note that as the driver implements the minimum PM
14939  * requirements to a power-aware driver's PM support for suspend/resume -- all
14940  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14941  * method call will be treated as SUSPEND and the driver will fully
14942  * reinitialize its device during resume() method call, the driver will set
14943  * device to PCI_D3hot state in PCI config space instead of setting it
14944  * according to the @msg provided by the PM.
14945  *
14946  * Return code
14947  *      0 - driver suspended the device
14948  *      Error otherwise
14949  **/
14950 static int __maybe_unused
14951 lpfc_pci_suspend_one_s4(struct device *dev_d)
14952 {
14953         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14954         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14955
14956         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14957                         "2843 PCI device Power Management suspend.\n");
14958
14959         /* Bring down the device */
14960         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14961         lpfc_offline(phba);
14962         kthread_stop(phba->worker_thread);
14963
14964         /* Disable interrupt from device */
14965         lpfc_sli4_disable_intr(phba);
14966         lpfc_sli4_queue_destroy(phba);
14967
14968         return 0;
14969 }
14970
14971 /**
14972  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14973  * @dev_d: pointer to device
14974  *
14975  * This routine is called from the kernel's PCI subsystem to support system
14976  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14977  * this method, it restores the device's PCI config space state and fully
14978  * reinitializes the device and brings it online. Note that as the driver
14979  * implements the minimum PM requirements to a power-aware driver's PM for
14980  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14981  * to the suspend() method call will be treated as SUSPEND and the driver
14982  * will fully reinitialize its device during resume() method call, the device
14983  * will be set to PCI_D0 directly in PCI config space before restoring the
14984  * state.
14985  *
14986  * Return code
14987  *      0 - driver suspended the device
14988  *      Error otherwise
14989  **/
14990 static int __maybe_unused
14991 lpfc_pci_resume_one_s4(struct device *dev_d)
14992 {
14993         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14994         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14995         uint32_t intr_mode;
14996         int error;
14997
14998         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14999                         "0292 PCI device Power Management resume.\n");
15000
15001          /* Startup the kernel thread for this host adapter. */
15002         phba->worker_thread = kthread_run(lpfc_do_work, phba,
15003                                         "lpfc_worker_%d", phba->brd_no);
15004         if (IS_ERR(phba->worker_thread)) {
15005                 error = PTR_ERR(phba->worker_thread);
15006                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15007                                 "0293 PM resume failed to start worker "
15008                                 "thread: error=x%x.\n", error);
15009                 return error;
15010         }
15011
15012         /* Configure and enable interrupt */
15013         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15014         if (intr_mode == LPFC_INTR_ERROR) {
15015                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15016                                 "0294 PM resume Failed to enable interrupt\n");
15017                 return -EIO;
15018         } else
15019                 phba->intr_mode = intr_mode;
15020
15021         /* Restart HBA and bring it online */
15022         lpfc_sli_brdrestart(phba);
15023         lpfc_online(phba);
15024
15025         /* Log the current active interrupt mode */
15026         lpfc_log_intr_mode(phba, phba->intr_mode);
15027
15028         return 0;
15029 }
15030
15031 /**
15032  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
15033  * @phba: pointer to lpfc hba data structure.
15034  *
15035  * This routine is called to prepare the SLI4 device for PCI slot recover. It
15036  * aborts all the outstanding SCSI I/Os to the pci device.
15037  **/
15038 static void
15039 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
15040 {
15041         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15042                         "2828 PCI channel I/O abort preparing for recovery\n");
15043         /*
15044          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
15045          * and let the SCSI mid-layer to retry them to recover.
15046          */
15047         lpfc_sli_abort_fcp_rings(phba);
15048 }
15049
15050 /**
15051  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
15052  * @phba: pointer to lpfc hba data structure.
15053  *
15054  * This routine is called to prepare the SLI4 device for PCI slot reset. It
15055  * disables the device interrupt and pci device, and aborts the internal FCP
15056  * pending I/Os.
15057  **/
15058 static void
15059 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
15060 {
15061         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15062                         "2826 PCI channel disable preparing for reset\n");
15063
15064         /* Block any management I/Os to the device */
15065         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
15066
15067         /* Block all SCSI devices' I/Os on the host */
15068         lpfc_scsi_dev_block(phba);
15069
15070         /* Flush all driver's outstanding I/Os as we are to reset */
15071         lpfc_sli_flush_io_rings(phba);
15072
15073         /* stop all timers */
15074         lpfc_stop_hba_timers(phba);
15075
15076         /* Disable interrupt and pci device */
15077         lpfc_sli4_disable_intr(phba);
15078         lpfc_sli4_queue_destroy(phba);
15079         pci_disable_device(phba->pcidev);
15080 }
15081
15082 /**
15083  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
15084  * @phba: pointer to lpfc hba data structure.
15085  *
15086  * This routine is called to prepare the SLI4 device for PCI slot permanently
15087  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15088  * pending I/Os.
15089  **/
15090 static void
15091 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15092 {
15093         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15094                         "2827 PCI channel permanent disable for failure\n");
15095
15096         /* Block all SCSI devices' I/Os on the host */
15097         lpfc_scsi_dev_block(phba);
15098
15099         /* stop all timers */
15100         lpfc_stop_hba_timers(phba);
15101
15102         /* Clean up all driver's outstanding I/Os */
15103         lpfc_sli_flush_io_rings(phba);
15104 }
15105
15106 /**
15107  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15108  * @pdev: pointer to PCI device.
15109  * @state: the current PCI connection state.
15110  *
15111  * This routine is called from the PCI subsystem for error handling to device
15112  * with SLI-4 interface spec. This function is called by the PCI subsystem
15113  * after a PCI bus error affecting this device has been detected. When this
15114  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15115  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15116  * for the PCI subsystem to perform proper recovery as desired.
15117  *
15118  * Return codes
15119  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15120  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15121  **/
15122 static pci_ers_result_t
15123 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15124 {
15125         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15126         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15127
15128         switch (state) {
15129         case pci_channel_io_normal:
15130                 /* Non-fatal error, prepare for recovery */
15131                 lpfc_sli4_prep_dev_for_recover(phba);
15132                 return PCI_ERS_RESULT_CAN_RECOVER;
15133         case pci_channel_io_frozen:
15134                 phba->hba_flag |= HBA_PCI_ERR;
15135                 /* Fatal error, prepare for slot reset */
15136                 lpfc_sli4_prep_dev_for_reset(phba);
15137                 return PCI_ERS_RESULT_NEED_RESET;
15138         case pci_channel_io_perm_failure:
15139                 phba->hba_flag |= HBA_PCI_ERR;
15140                 /* Permanent failure, prepare for device down */
15141                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15142                 return PCI_ERS_RESULT_DISCONNECT;
15143         default:
15144                 phba->hba_flag |= HBA_PCI_ERR;
15145                 /* Unknown state, prepare and request slot reset */
15146                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15147                                 "2825 Unknown PCI error state: x%x\n", state);
15148                 lpfc_sli4_prep_dev_for_reset(phba);
15149                 return PCI_ERS_RESULT_NEED_RESET;
15150         }
15151 }
15152
15153 /**
15154  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15155  * @pdev: pointer to PCI device.
15156  *
15157  * This routine is called from the PCI subsystem for error handling to device
15158  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15159  * restart the PCI card from scratch, as if from a cold-boot. During the
15160  * PCI subsystem error recovery, after the driver returns
15161  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15162  * recovery and then call this routine before calling the .resume method to
15163  * recover the device. This function will initialize the HBA device, enable
15164  * the interrupt, but it will just put the HBA to offline state without
15165  * passing any I/O traffic.
15166  *
15167  * Return codes
15168  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15169  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15170  */
15171 static pci_ers_result_t
15172 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15173 {
15174         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15175         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15176         struct lpfc_sli *psli = &phba->sli;
15177         uint32_t intr_mode;
15178
15179         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15180         if (pci_enable_device_mem(pdev)) {
15181                 printk(KERN_ERR "lpfc: Cannot re-enable "
15182                         "PCI device after reset.\n");
15183                 return PCI_ERS_RESULT_DISCONNECT;
15184         }
15185
15186         pci_restore_state(pdev);
15187
15188         phba->hba_flag &= ~HBA_PCI_ERR;
15189         /*
15190          * As the new kernel behavior of pci_restore_state() API call clears
15191          * device saved_state flag, need to save the restored state again.
15192          */
15193         pci_save_state(pdev);
15194
15195         if (pdev->is_busmaster)
15196                 pci_set_master(pdev);
15197
15198         spin_lock_irq(&phba->hbalock);
15199         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15200         spin_unlock_irq(&phba->hbalock);
15201
15202         /* Configure and enable interrupt */
15203         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15204         if (intr_mode == LPFC_INTR_ERROR) {
15205                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15206                                 "2824 Cannot re-enable interrupt after "
15207                                 "slot reset.\n");
15208                 return PCI_ERS_RESULT_DISCONNECT;
15209         } else
15210                 phba->intr_mode = intr_mode;
15211         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15212
15213         /* Log the current active interrupt mode */
15214         lpfc_log_intr_mode(phba, phba->intr_mode);
15215
15216         return PCI_ERS_RESULT_RECOVERED;
15217 }
15218
15219 /**
15220  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15221  * @pdev: pointer to PCI device
15222  *
15223  * This routine is called from the PCI subsystem for error handling to device
15224  * with SLI-4 interface spec. It is called when kernel error recovery tells
15225  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15226  * error recovery. After this call, traffic can start to flow from this device
15227  * again.
15228  **/
15229 static void
15230 lpfc_io_resume_s4(struct pci_dev *pdev)
15231 {
15232         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15233         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15234
15235         /*
15236          * In case of slot reset, as function reset is performed through
15237          * mailbox command which needs DMA to be enabled, this operation
15238          * has to be moved to the io resume phase. Taking device offline
15239          * will perform the necessary cleanup.
15240          */
15241         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15242                 /* Perform device reset */
15243                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15244                 lpfc_offline(phba);
15245                 lpfc_sli_brdrestart(phba);
15246                 /* Bring the device back online */
15247                 lpfc_online(phba);
15248         }
15249 }
15250
15251 /**
15252  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15253  * @pdev: pointer to PCI device
15254  * @pid: pointer to PCI device identifier
15255  *
15256  * This routine is to be registered to the kernel's PCI subsystem. When an
15257  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15258  * at PCI device-specific information of the device and driver to see if the
15259  * driver state that it can support this kind of device. If the match is
15260  * successful, the driver core invokes this routine. This routine dispatches
15261  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15262  * do all the initialization that it needs to do to handle the HBA device
15263  * properly.
15264  *
15265  * Return code
15266  *      0 - driver can claim the device
15267  *      negative value - driver can not claim the device
15268  **/
15269 static int
15270 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15271 {
15272         int rc;
15273         struct lpfc_sli_intf intf;
15274
15275         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15276                 return -ENODEV;
15277
15278         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15279             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15280                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15281         else
15282                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15283
15284         return rc;
15285 }
15286
15287 /**
15288  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15289  * @pdev: pointer to PCI device
15290  *
15291  * This routine is to be registered to the kernel's PCI subsystem. When an
15292  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15293  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15294  * remove routine, which will perform all the necessary cleanup for the
15295  * device to be removed from the PCI subsystem properly.
15296  **/
15297 static void
15298 lpfc_pci_remove_one(struct pci_dev *pdev)
15299 {
15300         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15301         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15302
15303         switch (phba->pci_dev_grp) {
15304         case LPFC_PCI_DEV_LP:
15305                 lpfc_pci_remove_one_s3(pdev);
15306                 break;
15307         case LPFC_PCI_DEV_OC:
15308                 lpfc_pci_remove_one_s4(pdev);
15309                 break;
15310         default:
15311                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15312                                 "1424 Invalid PCI device group: 0x%x\n",
15313                                 phba->pci_dev_grp);
15314                 break;
15315         }
15316         return;
15317 }
15318
15319 /**
15320  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15321  * @dev: pointer to device
15322  *
15323  * This routine is to be registered to the kernel's PCI subsystem to support
15324  * system Power Management (PM). When PM invokes this method, it dispatches
15325  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15326  * suspend the device.
15327  *
15328  * Return code
15329  *      0 - driver suspended the device
15330  *      Error otherwise
15331  **/
15332 static int __maybe_unused
15333 lpfc_pci_suspend_one(struct device *dev)
15334 {
15335         struct Scsi_Host *shost = dev_get_drvdata(dev);
15336         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15337         int rc = -ENODEV;
15338
15339         switch (phba->pci_dev_grp) {
15340         case LPFC_PCI_DEV_LP:
15341                 rc = lpfc_pci_suspend_one_s3(dev);
15342                 break;
15343         case LPFC_PCI_DEV_OC:
15344                 rc = lpfc_pci_suspend_one_s4(dev);
15345                 break;
15346         default:
15347                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15348                                 "1425 Invalid PCI device group: 0x%x\n",
15349                                 phba->pci_dev_grp);
15350                 break;
15351         }
15352         return rc;
15353 }
15354
15355 /**
15356  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15357  * @dev: pointer to device
15358  *
15359  * This routine is to be registered to the kernel's PCI subsystem to support
15360  * system Power Management (PM). When PM invokes this method, it dispatches
15361  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15362  * resume the device.
15363  *
15364  * Return code
15365  *      0 - driver suspended the device
15366  *      Error otherwise
15367  **/
15368 static int __maybe_unused
15369 lpfc_pci_resume_one(struct device *dev)
15370 {
15371         struct Scsi_Host *shost = dev_get_drvdata(dev);
15372         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15373         int rc = -ENODEV;
15374
15375         switch (phba->pci_dev_grp) {
15376         case LPFC_PCI_DEV_LP:
15377                 rc = lpfc_pci_resume_one_s3(dev);
15378                 break;
15379         case LPFC_PCI_DEV_OC:
15380                 rc = lpfc_pci_resume_one_s4(dev);
15381                 break;
15382         default:
15383                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15384                                 "1426 Invalid PCI device group: 0x%x\n",
15385                                 phba->pci_dev_grp);
15386                 break;
15387         }
15388         return rc;
15389 }
15390
15391 /**
15392  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15393  * @pdev: pointer to PCI device.
15394  * @state: the current PCI connection state.
15395  *
15396  * This routine is registered to the PCI subsystem for error handling. This
15397  * function is called by the PCI subsystem after a PCI bus error affecting
15398  * this device has been detected. When this routine is invoked, it dispatches
15399  * the action to the proper SLI-3 or SLI-4 device error detected handling
15400  * routine, which will perform the proper error detected operation.
15401  *
15402  * Return codes
15403  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15404  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15405  **/
15406 static pci_ers_result_t
15407 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15408 {
15409         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15410         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15411         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15412
15413         if (phba->link_state == LPFC_HBA_ERROR &&
15414             phba->hba_flag & HBA_IOQ_FLUSH)
15415                 return PCI_ERS_RESULT_NEED_RESET;
15416
15417         switch (phba->pci_dev_grp) {
15418         case LPFC_PCI_DEV_LP:
15419                 rc = lpfc_io_error_detected_s3(pdev, state);
15420                 break;
15421         case LPFC_PCI_DEV_OC:
15422                 rc = lpfc_io_error_detected_s4(pdev, state);
15423                 break;
15424         default:
15425                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15426                                 "1427 Invalid PCI device group: 0x%x\n",
15427                                 phba->pci_dev_grp);
15428                 break;
15429         }
15430         return rc;
15431 }
15432
15433 /**
15434  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15435  * @pdev: pointer to PCI device.
15436  *
15437  * This routine is registered to the PCI subsystem for error handling. This
15438  * function is called after PCI bus has been reset to restart the PCI card
15439  * from scratch, as if from a cold-boot. When this routine is invoked, it
15440  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15441  * routine, which will perform the proper device reset.
15442  *
15443  * Return codes
15444  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15445  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15446  **/
15447 static pci_ers_result_t
15448 lpfc_io_slot_reset(struct pci_dev *pdev)
15449 {
15450         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15451         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15452         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15453
15454         switch (phba->pci_dev_grp) {
15455         case LPFC_PCI_DEV_LP:
15456                 rc = lpfc_io_slot_reset_s3(pdev);
15457                 break;
15458         case LPFC_PCI_DEV_OC:
15459                 rc = lpfc_io_slot_reset_s4(pdev);
15460                 break;
15461         default:
15462                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15463                                 "1428 Invalid PCI device group: 0x%x\n",
15464                                 phba->pci_dev_grp);
15465                 break;
15466         }
15467         return rc;
15468 }
15469
15470 /**
15471  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15472  * @pdev: pointer to PCI device
15473  *
15474  * This routine is registered to the PCI subsystem for error handling. It
15475  * is called when kernel error recovery tells the lpfc driver that it is
15476  * OK to resume normal PCI operation after PCI bus error recovery. When
15477  * this routine is invoked, it dispatches the action to the proper SLI-3
15478  * or SLI-4 device io_resume routine, which will resume the device operation.
15479  **/
15480 static void
15481 lpfc_io_resume(struct pci_dev *pdev)
15482 {
15483         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15484         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15485
15486         switch (phba->pci_dev_grp) {
15487         case LPFC_PCI_DEV_LP:
15488                 lpfc_io_resume_s3(pdev);
15489                 break;
15490         case LPFC_PCI_DEV_OC:
15491                 lpfc_io_resume_s4(pdev);
15492                 break;
15493         default:
15494                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15495                                 "1429 Invalid PCI device group: 0x%x\n",
15496                                 phba->pci_dev_grp);
15497                 break;
15498         }
15499         return;
15500 }
15501
15502 /**
15503  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15504  * @phba: pointer to lpfc hba data structure.
15505  *
15506  * This routine checks to see if OAS is supported for this adapter. If
15507  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15508  * the enable oas flag is cleared and the pool created for OAS device data
15509  * is destroyed.
15510  *
15511  **/
15512 static void
15513 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15514 {
15515
15516         if (!phba->cfg_EnableXLane)
15517                 return;
15518
15519         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15520                 phba->cfg_fof = 1;
15521         } else {
15522                 phba->cfg_fof = 0;
15523                 mempool_destroy(phba->device_data_mem_pool);
15524                 phba->device_data_mem_pool = NULL;
15525         }
15526
15527         return;
15528 }
15529
15530 /**
15531  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15532  * @phba: pointer to lpfc hba data structure.
15533  *
15534  * This routine checks to see if RAS is supported by the adapter. Check the
15535  * function through which RAS support enablement is to be done.
15536  **/
15537 void
15538 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15539 {
15540         /* if ASIC_GEN_NUM >= 0xC) */
15541         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15542                     LPFC_SLI_INTF_IF_TYPE_6) ||
15543             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15544                     LPFC_SLI_INTF_FAMILY_G6)) {
15545                 phba->ras_fwlog.ras_hwsupport = true;
15546                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15547                     phba->cfg_ras_fwlog_buffsize)
15548                         phba->ras_fwlog.ras_enabled = true;
15549                 else
15550                         phba->ras_fwlog.ras_enabled = false;
15551         } else {
15552                 phba->ras_fwlog.ras_hwsupport = false;
15553         }
15554 }
15555
15556
15557 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15558
15559 static const struct pci_error_handlers lpfc_err_handler = {
15560         .error_detected = lpfc_io_error_detected,
15561         .slot_reset = lpfc_io_slot_reset,
15562         .resume = lpfc_io_resume,
15563 };
15564
15565 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15566                          lpfc_pci_suspend_one,
15567                          lpfc_pci_resume_one);
15568
15569 static struct pci_driver lpfc_driver = {
15570         .name           = LPFC_DRIVER_NAME,
15571         .id_table       = lpfc_id_table,
15572         .probe          = lpfc_pci_probe_one,
15573         .remove         = lpfc_pci_remove_one,
15574         .shutdown       = lpfc_pci_remove_one,
15575         .driver.pm      = &lpfc_pci_pm_ops_one,
15576         .err_handler    = &lpfc_err_handler,
15577 };
15578
15579 static const struct file_operations lpfc_mgmt_fop = {
15580         .owner = THIS_MODULE,
15581 };
15582
15583 static struct miscdevice lpfc_mgmt_dev = {
15584         .minor = MISC_DYNAMIC_MINOR,
15585         .name = "lpfcmgmt",
15586         .fops = &lpfc_mgmt_fop,
15587 };
15588
15589 /**
15590  * lpfc_init - lpfc module initialization routine
15591  *
15592  * This routine is to be invoked when the lpfc module is loaded into the
15593  * kernel. The special kernel macro module_init() is used to indicate the
15594  * role of this routine to the kernel as lpfc module entry point.
15595  *
15596  * Return codes
15597  *   0 - successful
15598  *   -ENOMEM - FC attach transport failed
15599  *   all others - failed
15600  */
15601 static int __init
15602 lpfc_init(void)
15603 {
15604         int error = 0;
15605
15606         pr_info(LPFC_MODULE_DESC "\n");
15607         pr_info(LPFC_COPYRIGHT "\n");
15608
15609         error = misc_register(&lpfc_mgmt_dev);
15610         if (error)
15611                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15612                         "misc_register returned with status %d", error);
15613
15614         error = -ENOMEM;
15615         lpfc_transport_functions.vport_create = lpfc_vport_create;
15616         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15617         lpfc_transport_template =
15618                                 fc_attach_transport(&lpfc_transport_functions);
15619         if (lpfc_transport_template == NULL)
15620                 goto unregister;
15621         lpfc_vport_transport_template =
15622                 fc_attach_transport(&lpfc_vport_transport_functions);
15623         if (lpfc_vport_transport_template == NULL) {
15624                 fc_release_transport(lpfc_transport_template);
15625                 goto unregister;
15626         }
15627         lpfc_wqe_cmd_template();
15628         lpfc_nvmet_cmd_template();
15629
15630         /* Initialize in case vector mapping is needed */
15631         lpfc_present_cpu = num_present_cpus();
15632
15633         lpfc_pldv_detect = false;
15634
15635         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15636                                         "lpfc/sli4:online",
15637                                         lpfc_cpu_online, lpfc_cpu_offline);
15638         if (error < 0)
15639                 goto cpuhp_failure;
15640         lpfc_cpuhp_state = error;
15641
15642         error = pci_register_driver(&lpfc_driver);
15643         if (error)
15644                 goto unwind;
15645
15646         return error;
15647
15648 unwind:
15649         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15650 cpuhp_failure:
15651         fc_release_transport(lpfc_transport_template);
15652         fc_release_transport(lpfc_vport_transport_template);
15653 unregister:
15654         misc_deregister(&lpfc_mgmt_dev);
15655
15656         return error;
15657 }
15658
15659 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15660 {
15661         unsigned int start_idx;
15662         unsigned int dbg_cnt;
15663         unsigned int temp_idx;
15664         int i;
15665         int j = 0;
15666         unsigned long rem_nsec, iflags;
15667         bool log_verbose = false;
15668         struct lpfc_vport *port_iterator;
15669
15670         /* Don't dump messages if we explicitly set log_verbose for the
15671          * physical port or any vport.
15672          */
15673         if (phba->cfg_log_verbose)
15674                 return;
15675
15676         spin_lock_irqsave(&phba->port_list_lock, iflags);
15677         list_for_each_entry(port_iterator, &phba->port_list, listentry) {
15678                 if (port_iterator->load_flag & FC_UNLOADING)
15679                         continue;
15680                 if (scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
15681                         if (port_iterator->cfg_log_verbose)
15682                                 log_verbose = true;
15683
15684                         scsi_host_put(lpfc_shost_from_vport(port_iterator));
15685
15686                         if (log_verbose) {
15687                                 spin_unlock_irqrestore(&phba->port_list_lock,
15688                                                        iflags);
15689                                 return;
15690                         }
15691                 }
15692         }
15693         spin_unlock_irqrestore(&phba->port_list_lock, iflags);
15694
15695         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15696                 return;
15697
15698         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15699         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15700         if (!dbg_cnt)
15701                 goto out;
15702         temp_idx = start_idx;
15703         if (dbg_cnt >= DBG_LOG_SZ) {
15704                 dbg_cnt = DBG_LOG_SZ;
15705                 temp_idx -= 1;
15706         } else {
15707                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15708                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15709                 } else {
15710                         if (start_idx < dbg_cnt)
15711                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15712                         else
15713                                 start_idx -= dbg_cnt;
15714                 }
15715         }
15716         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15717                  start_idx, temp_idx, dbg_cnt);
15718
15719         for (i = 0; i < dbg_cnt; i++) {
15720                 if ((start_idx + i) < DBG_LOG_SZ)
15721                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15722                 else
15723                         temp_idx = j++;
15724                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15725                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15726                          temp_idx,
15727                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15728                          rem_nsec / 1000,
15729                          phba->dbg_log[temp_idx].log);
15730         }
15731 out:
15732         atomic_set(&phba->dbg_log_cnt, 0);
15733         atomic_set(&phba->dbg_log_dmping, 0);
15734 }
15735
15736 __printf(2, 3)
15737 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15738 {
15739         unsigned int idx;
15740         va_list args;
15741         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15742         struct va_format vaf;
15743
15744
15745         va_start(args, fmt);
15746         if (unlikely(dbg_dmping)) {
15747                 vaf.fmt = fmt;
15748                 vaf.va = &args;
15749                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15750                 va_end(args);
15751                 return;
15752         }
15753         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15754                 DBG_LOG_SZ;
15755
15756         atomic_inc(&phba->dbg_log_cnt);
15757
15758         vscnprintf(phba->dbg_log[idx].log,
15759                    sizeof(phba->dbg_log[idx].log), fmt, args);
15760         va_end(args);
15761
15762         phba->dbg_log[idx].t_ns = local_clock();
15763 }
15764
15765 /**
15766  * lpfc_exit - lpfc module removal routine
15767  *
15768  * This routine is invoked when the lpfc module is removed from the kernel.
15769  * The special kernel macro module_exit() is used to indicate the role of
15770  * this routine to the kernel as lpfc module exit point.
15771  */
15772 static void __exit
15773 lpfc_exit(void)
15774 {
15775         misc_deregister(&lpfc_mgmt_dev);
15776         pci_unregister_driver(&lpfc_driver);
15777         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15778         fc_release_transport(lpfc_transport_template);
15779         fc_release_transport(lpfc_vport_transport_template);
15780         idr_destroy(&lpfc_hba_index);
15781 }
15782
15783 module_init(lpfc_init);
15784 module_exit(lpfc_exit);
15785 MODULE_LICENSE("GPL");
15786 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15787 MODULE_AUTHOR("Broadcom");
15788 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);