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
  72 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba);
  73 static void lpfc_cpuhp_remove(struct lpfc_hba *phba);
  74 static void lpfc_cpuhp_add(struct lpfc_hba *phba);
  75 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  76 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  77 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  78 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  79 static int lpfc_setup_endian_order(struct lpfc_hba *);
  80 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  81 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  82 static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *);
  83 static void lpfc_init_sgl_list(struct lpfc_hba *);
  84 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  85 static void lpfc_free_active_sgl(struct lpfc_hba *);
  86 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  87 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  88 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  89 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  90 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  91 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  92 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  93 static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
  94 static uint16_t lpfc_find_cpu_handle(struct lpfc_hba *, uint16_t, int);
  95 static void lpfc_setup_bg(struct lpfc_hba *, struct Scsi_Host *);
  96 static int lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *);
  97
  98 static struct scsi_transport_template *lpfc_transport_template = NULL;
  99 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
 100 static DEFINE_IDR(lpfc_hba_index);
 101 #define LPFC_NVMET_BUF_POST 254
 102 static int lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport);
 103
 104 /**
 105  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
 106  * @phba: pointer to lpfc hba data structure.
 107  *
 108  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
 109  * mailbox command. It retrieves the revision information from the HBA and
 110  * collects the Vital Product Data (VPD) about the HBA for preparing the
 111  * configuration of the HBA.
 112  *
 113  * Return codes:
 114  *   0 - success.
 115  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
 116  *   Any other value - indicates an error.
 117  **/
 118 int
 119 lpfc_config_port_prep(struct lpfc_hba *phba)
 120 {
 121         lpfc_vpd_t *vp = &phba->vpd;
 122         int i = 0, rc;
 123         LPFC_MBOXQ_t *pmb;
 124         MAILBOX_t *mb;
 125         char *lpfc_vpd_data = NULL;
 126         uint16_t offset = 0;
 127         static char licensed[56] =
 128                     "key unlock for use with gnu public licensed code only\0";
 129         static int init_key = 1;
 130
 131         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 132         if (!pmb) {
 133                 phba->link_state = LPFC_HBA_ERROR;
 134                 return -ENOMEM;
 135         }
 136
 137         mb = &pmb->u.mb;
 138         phba->link_state = LPFC_INIT_MBX_CMDS;
 139
 140         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 141                 if (init_key) {
 142                         uint32_t *ptext = (uint32_t *) licensed;
 143
 144                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 145                                 *ptext = cpu_to_be32(*ptext);
 146                         init_key = 0;
 147                 }
 148
 149                 lpfc_read_nv(phba, pmb);
 150                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 151                         sizeof (mb->un.varRDnvp.rsvd3));
 152                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 153                          sizeof (licensed));
 154
 155                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156
 157                 if (rc != MBX_SUCCESS) {
 158                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 159                                         "0324 Config Port initialization "
 160                                         "error, mbxCmd x%x READ_NVPARM, "
 161                                         "mbxStatus x%x\n",
 162                                         mb->mbxCommand, mb->mbxStatus);
 163                         mempool_free(pmb, phba->mbox_mem_pool);
 164                         return -ERESTART;
 165                 }
 166                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 167                        sizeof(phba->wwnn));
 168                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 169                        sizeof(phba->wwpn));
 170         }
 171
 172         /*
 173          * Clear all option bits except LPFC_SLI3_BG_ENABLED,
 174          * which was already set in lpfc_get_cfgparam()
 175          */
 176         phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED;
 177
 178         /* Setup and issue mailbox READ REV command */
 179         lpfc_read_rev(phba, pmb);
 180         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 181         if (rc != MBX_SUCCESS) {
 182                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 183                                 "0439 Adapter failed to init, mbxCmd x%x "
 184                                 "READ_REV, mbxStatus x%x\n",
 185                                 mb->mbxCommand, mb->mbxStatus);
 186                 mempool_free( pmb, phba->mbox_mem_pool);
 187                 return -ERESTART;
 188         }
 189
 190
 191         /*
 192          * The value of rr must be 1 since the driver set the cv field to 1.
 193          * This setting requires the FW to set all revision fields.
 194          */
 195         if (mb->un.varRdRev.rr == 0) {
 196                 vp->rev.rBit = 0;
 197                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 198                                 "0440 Adapter failed to init, READ_REV has "
 199                                 "missing revision information.\n");
 200                 mempool_free(pmb, phba->mbox_mem_pool);
 201                 return -ERESTART;
 202         }
 203
 204         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 205                 mempool_free(pmb, phba->mbox_mem_pool);
 206                 return -EINVAL;
 207         }
 208
 209         /* Save information as VPD data */
 210         vp->rev.rBit = 1;
 211         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 212         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 213         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 214         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 215         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 216         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 217         vp->rev.smRev = mb->un.varRdRev.smRev;
 218         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 219         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 220         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 221         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 222         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 223         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 224         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 225         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 226
 227         /* If the sli feature level is less then 9, we must
 228          * tear down all RPIs and VPIs on link down if NPIV
 229          * is enabled.
 230          */
 231         if (vp->rev.feaLevelHigh < 9)
 232                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 233
 234         if (lpfc_is_LC_HBA(phba->pcidev->device))
 235                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 236                                                 sizeof (phba->RandomData));
 237
 238         /* Get adapter VPD information */
 239         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 240         if (!lpfc_vpd_data)
 241                 goto out_free_mbox;
 242         do {
 243                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 244                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 245
 246                 if (rc != MBX_SUCCESS) {
 247                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 248                                         "0441 VPD not present on adapter, "
 249                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 250                                         mb->mbxCommand, mb->mbxStatus);
 251                         mb->un.varDmp.word_cnt = 0;
 252                 }
 253                 /* dump mem may return a zero when finished or we got a
 254                  * mailbox error, either way we are done.
 255                  */
 256                 if (mb->un.varDmp.word_cnt == 0)
 257                         break;
 258
 259                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 260                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 261                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 262                                       lpfc_vpd_data + offset,
 263                                       mb->un.varDmp.word_cnt);
 264                 offset += mb->un.varDmp.word_cnt;
 265         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 266
 267         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 268
 269         kfree(lpfc_vpd_data);
 270 out_free_mbox:
 271         mempool_free(pmb, phba->mbox_mem_pool);
 272         return 0;
 273 }
 274
 275 /**
 276  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 277  * @phba: pointer to lpfc hba data structure.
 278  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 279  *
 280  * This is the completion handler for driver's configuring asynchronous event
 281  * mailbox command to the device. If the mailbox command returns successfully,
 282  * it will set internal async event support flag to 1; otherwise, it will
 283  * set internal async event support flag to 0.
 284  **/
 285 static void
 286 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 287 {
 288         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 289                 phba->temp_sensor_support = 1;
 290         else
 291                 phba->temp_sensor_support = 0;
 292         mempool_free(pmboxq, phba->mbox_mem_pool);
 293         return;
 294 }
 295
 296 /**
 297  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 298  * @phba: pointer to lpfc hba data structure.
 299  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 300  *
 301  * This is the completion handler for dump mailbox command for getting
 302  * wake up parameters. When this command complete, the response contain
 303  * Option rom version of the HBA. This function translate the version number
 304  * into a human readable string and store it in OptionROMVersion.
 305  **/
 306 static void
 307 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 308 {
 309         struct prog_id *prg;
 310         uint32_t prog_id_word;
 311         char dist = ' ';
 312         /* character array used for decoding dist type. */
 313         char dist_char[] = "nabx";
 314
 315         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 316                 mempool_free(pmboxq, phba->mbox_mem_pool);
 317                 return;
 318         }
 319
 320         prg = (struct prog_id *) &prog_id_word;
 321
 322         /* word 7 contain option rom version */
 323         prog_id_word = pmboxq->u.mb.un.varWords[7];
 324
 325         /* Decode the Option rom version word to a readable string */
 326         if (prg->dist < 4)
 327                 dist = dist_char[prg->dist];
 328
 329         if ((prg->dist == 3) && (prg->num == 0))
 330                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d",
 331                         prg->ver, prg->rev, prg->lev);
 332         else
 333                 snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d",
 334                         prg->ver, prg->rev, prg->lev,
 335                         dist, prg->num);
 336         mempool_free(pmboxq, phba->mbox_mem_pool);
 337         return;
 338 }
 339
 340 /**
 341  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 342  *      cfg_soft_wwnn, cfg_soft_wwpn
 343  * @vport: pointer to lpfc vport data structure.
 344  *
 345  *
 346  * Return codes
 347  *   None.
 348  **/
 349 void
 350 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 351 {
 352         uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
 353         u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0];
 354
 355         /* If the soft name exists then update it using the service params */
 356         if (vport->phba->cfg_soft_wwnn)
 357                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 358                            vport->fc_sparam.nodeName.u.wwn);
 359         if (vport->phba->cfg_soft_wwpn)
 360                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 361                            vport->fc_sparam.portName.u.wwn);
 362
 363         /*
 364          * If the name is empty or there exists a soft name
 365          * then copy the service params name, otherwise use the fc name
 366          */
 367         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 368                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 369                         sizeof(struct lpfc_name));
 370         else
 371                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 372                         sizeof(struct lpfc_name));
 373
 374         /*
 375          * If the port name has changed, then set the Param changes flag
 376          * to unreg the login
 377          */
 378         if (vport->fc_portname.u.wwn[0] != 0 &&
 379                 memcmp(&vport->fc_portname, &vport->fc_sparam.portName,
 380                         sizeof(struct lpfc_name)))
 381                 vport->vport_flag |= FAWWPN_PARAM_CHG;
 382
 383         if (vport->fc_portname.u.wwn[0] == 0 ||
 384             vport->phba->cfg_soft_wwpn ||
 385             (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) ||
 386             vport->vport_flag & FAWWPN_SET) {
 387                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 388                         sizeof(struct lpfc_name));
 389                 vport->vport_flag &= ~FAWWPN_SET;
 390                 if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR)
 391                         vport->vport_flag |= FAWWPN_SET;
 392         }
 393         else
 394                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 395                         sizeof(struct lpfc_name));
 396 }
 397
 398 /**
 399  * lpfc_config_port_post - Perform lpfc initialization after config port
 400  * @phba: pointer to lpfc hba data structure.
 401  *
 402  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 403  * command call. It performs all internal resource and state setups on the
 404  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 405  * ELS ring timers, etc.
 406  *
 407  * Return codes
 408  *   0 - success.
 409  *   Any other value - error.
 410  **/
 411 int
 412 lpfc_config_port_post(struct lpfc_hba *phba)
 413 {
 414         struct lpfc_vport *vport = phba->pport;
 415         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 416         LPFC_MBOXQ_t *pmb;
 417         MAILBOX_t *mb;
 418         struct lpfc_dmabuf *mp;
 419         struct lpfc_sli *psli = &phba->sli;
 420         uint32_t status, timeout;
 421         int i, j;
 422         int rc;
 423
 424         spin_lock_irq(&phba->hbalock);
 425         /*
 426          * If the Config port completed correctly the HBA is not
 427          * over heated any more.
 428          */
 429         if (phba->over_temp_state == HBA_OVER_TEMP)
 430                 phba->over_temp_state = HBA_NORMAL_TEMP;
 431         spin_unlock_irq(&phba->hbalock);
 432
 433         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 434         if (!pmb) {
 435                 phba->link_state = LPFC_HBA_ERROR;
 436                 return -ENOMEM;
 437         }
 438         mb = &pmb->u.mb;
 439
 440         /* Get login parameters for NID.  */
 441         rc = lpfc_read_sparam(phba, pmb, 0);
 442         if (rc) {
 443                 mempool_free(pmb, phba->mbox_mem_pool);
 444                 return -ENOMEM;
 445         }
 446
 447         pmb->vport = vport;
 448         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 449                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 450                                 "0448 Adapter failed init, mbxCmd x%x "
 451                                 "READ_SPARM mbxStatus x%x\n",
 452                                 mb->mbxCommand, mb->mbxStatus);
 453                 phba->link_state = LPFC_HBA_ERROR;
 454                 mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 455                 mempool_free(pmb, phba->mbox_mem_pool);
 456                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 457                 kfree(mp);
 458                 return -EIO;
 459         }
 460
 461         mp = (struct lpfc_dmabuf *)pmb->ctx_buf;
 462
 463         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 464         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 465         kfree(mp);
 466         pmb->ctx_buf = NULL;
 467         lpfc_update_vport_wwn(vport);
 468
 469         /* Update the fc_host data structures with new wwn. */
 470         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 471         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 472         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 473
 474         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 475         /* This should be consolidated into parse_vpd ? - mr */
 476         if (phba->SerialNumber[0] == 0) {
 477                 uint8_t *outptr;
 478
 479                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 480                 for (i = 0; i < 12; i++) {
 481                         status = *outptr++;
 482                         j = ((status & 0xf0) >> 4);
 483                         if (j <= 9)
 484                                 phba->SerialNumber[i] =
 485                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 486                         else
 487                                 phba->SerialNumber[i] =
 488                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 489                         i++;
 490                         j = (status & 0xf);
 491                         if (j <= 9)
 492                                 phba->SerialNumber[i] =
 493                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 494                         else
 495                                 phba->SerialNumber[i] =
 496                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 497                 }
 498         }
 499
 500         lpfc_read_config(phba, pmb);
 501         pmb->vport = vport;
 502         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 503                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 504                                 "0453 Adapter failed to init, mbxCmd x%x "
 505                                 "READ_CONFIG, mbxStatus x%x\n",
 506                                 mb->mbxCommand, mb->mbxStatus);
 507                 phba->link_state = LPFC_HBA_ERROR;
 508                 mempool_free( pmb, phba->mbox_mem_pool);
 509                 return -EIO;
 510         }
 511
 512         /* Check if the port is disabled */
 513         lpfc_sli_read_link_ste(phba);
 514
 515         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 516         if (phba->cfg_hba_queue_depth > mb->un.varRdConfig.max_xri) {
 517                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
 518                                 "3359 HBA queue depth changed from %d to %d\n",
 519                                 phba->cfg_hba_queue_depth,
 520                                 mb->un.varRdConfig.max_xri);
 521                 phba->cfg_hba_queue_depth = mb->un.varRdConfig.max_xri;
 522         }
 523
 524         phba->lmt = mb->un.varRdConfig.lmt;
 525
 526         /* Get the default values for Model Name and Description */
 527         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 528
 529         phba->link_state = LPFC_LINK_DOWN;
 530
 531         /* Only process IOCBs on ELS ring till hba_state is READY */
 532         if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr)
 533                 psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT;
 534         if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr)
 535                 psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT;
 536
 537         /* Post receive buffers for desired rings */
 538         if (phba->sli_rev != 3)
 539                 lpfc_post_rcv_buf(phba);
 540
 541         /*
 542          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 543          */
 544         if (phba->intr_type == MSIX) {
 545                 rc = lpfc_config_msi(phba, pmb);
 546                 if (rc) {
 547                         mempool_free(pmb, phba->mbox_mem_pool);
 548                         return -EIO;
 549                 }
 550                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 551                 if (rc != MBX_SUCCESS) {
 552                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 553                                         "0352 Config MSI mailbox command "
 554                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 555                                         pmb->u.mb.mbxCommand,
 556                                         pmb->u.mb.mbxStatus);
 557                         mempool_free(pmb, phba->mbox_mem_pool);
 558                         return -EIO;
 559                 }
 560         }
 561
 562         spin_lock_irq(&phba->hbalock);
 563         /* Initialize ERATT handling flag */
 564         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 565
 566         /* Enable appropriate host interrupts */
 567         if (lpfc_readl(phba->HCregaddr, &status)) {
 568                 spin_unlock_irq(&phba->hbalock);
 569                 return -EIO;
 570         }
 571         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 572         if (psli->num_rings > 0)
 573                 status |= HC_R0INT_ENA;
 574         if (psli->num_rings > 1)
 575                 status |= HC_R1INT_ENA;
 576         if (psli->num_rings > 2)
 577                 status |= HC_R2INT_ENA;
 578         if (psli->num_rings > 3)
 579                 status |= HC_R3INT_ENA;
 580
 581         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 582             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 583                 status &= ~(HC_R0INT_ENA);
 584
 585         writel(status, phba->HCregaddr);
 586         readl(phba->HCregaddr); /* flush */
 587         spin_unlock_irq(&phba->hbalock);
 588
 589         /* Set up ring-0 (ELS) timer */
 590         timeout = phba->fc_ratov * 2;
 591         mod_timer(&vport->els_tmofunc,
 592                   jiffies + msecs_to_jiffies(1000 * timeout));
 593         /* Set up heart beat (HB) timer */
 594         mod_timer(&phba->hb_tmofunc,
 595                   jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
 596         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
 597         phba->last_completion_time = jiffies;
 598         /* Set up error attention (ERATT) polling timer */
 599         mod_timer(&phba->eratt_poll,
 600                   jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval));
 601
 602         if (phba->hba_flag & LINK_DISABLED) {
 603                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 604                                 "2598 Adapter Link is disabled.\n");
 605                 lpfc_down_link(phba, pmb);
 606                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 607                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 608                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 609                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 610                                         "2599 Adapter failed to issue DOWN_LINK"
 611                                         " mbox command rc 0x%x\n", rc);
 612
 613                         mempool_free(pmb, phba->mbox_mem_pool);
 614                         return -EIO;
 615                 }
 616         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 617                 mempool_free(pmb, phba->mbox_mem_pool);
 618                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 619                 if (rc)
 620                         return rc;
 621         }
 622         /* MBOX buffer will be freed in mbox compl */
 623         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 624         if (!pmb) {
 625                 phba->link_state = LPFC_HBA_ERROR;
 626                 return -ENOMEM;
 627         }
 628
 629         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 630         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 631         pmb->vport = phba->pport;
 632         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 633
 634         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 635                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 636                                 "0456 Adapter failed to issue "
 637                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 638                                 rc);
 639                 mempool_free(pmb, phba->mbox_mem_pool);
 640         }
 641
 642         /* Get Option rom version */
 643         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 644         if (!pmb) {
 645                 phba->link_state = LPFC_HBA_ERROR;
 646                 return -ENOMEM;
 647         }
 648
 649         lpfc_dump_wakeup_param(phba, pmb);
 650         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 651         pmb->vport = phba->pport;
 652         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 653
 654         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 655                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 656                                 "0435 Adapter failed "
 657                                 "to get Option ROM version status x%x\n", rc);
 658                 mempool_free(pmb, phba->mbox_mem_pool);
 659         }
 660
 661         return 0;
 662 }
 663
 664 /**
 665  * lpfc_hba_init_link - Initialize the FC link
 666  * @phba: pointer to lpfc hba data structure.
 667  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 668  *
 669  * This routine will issue the INIT_LINK mailbox command call.
 670  * It is available to other drivers through the lpfc_hba data
 671  * structure for use as a delayed link up mechanism with the
 672  * module parameter lpfc_suppress_link_up.
 673  *
 674  * Return code
 675  *              0 - success
 676  *              Any other value - error
 677  **/
 678 static int
 679 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 680 {
 681         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 682 }
 683
 684 /**
 685  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 686  * @phba: pointer to lpfc hba data structure.
 687  * @fc_topology: desired fc topology.
 688  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 689  *
 690  * This routine will issue the INIT_LINK mailbox command call.
 691  * It is available to other drivers through the lpfc_hba data
 692  * structure for use as a delayed link up mechanism with the
 693  * module parameter lpfc_suppress_link_up.
 694  *
 695  * Return code
 696  *              0 - success
 697  *              Any other value - error
 698  **/
 699 int
 700 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 701                                uint32_t flag)
 702 {
 703         struct lpfc_vport *vport = phba->pport;
 704         LPFC_MBOXQ_t *pmb;
 705         MAILBOX_t *mb;
 706         int rc;
 707
 708         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 709         if (!pmb) {
 710                 phba->link_state = LPFC_HBA_ERROR;
 711                 return -ENOMEM;
 712         }
 713         mb = &pmb->u.mb;
 714         pmb->vport = vport;
 715
 716         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 717             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 718              !(phba->lmt & LMT_1Gb)) ||
 719             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 720              !(phba->lmt & LMT_2Gb)) ||
 721             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 722              !(phba->lmt & LMT_4Gb)) ||
 723             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 724              !(phba->lmt & LMT_8Gb)) ||
 725             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 726              !(phba->lmt & LMT_10Gb)) ||
 727             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 728              !(phba->lmt & LMT_16Gb)) ||
 729             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) &&
 730              !(phba->lmt & LMT_32Gb)) ||
 731             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) &&
 732              !(phba->lmt & LMT_64Gb))) {
 733                 /* Reset link speed to auto */
 734                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 735                                 "1302 Invalid speed for this board:%d "
 736                                 "Reset link speed to auto.\n",
 737                                 phba->cfg_link_speed);
 738                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 739         }
 740         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 741         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 742         if (phba->sli_rev < LPFC_SLI_REV4)
 743                 lpfc_set_loopback_flag(phba);
 744         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 745         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 746                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 747                                 "0498 Adapter failed to init, mbxCmd x%x "
 748                                 "INIT_LINK, mbxStatus x%x\n",
 749                                 mb->mbxCommand, mb->mbxStatus);
 750                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 751                         /* Clear all interrupt enable conditions */
 752                         writel(0, phba->HCregaddr);
 753                         readl(phba->HCregaddr); /* flush */
 754                         /* Clear all pending interrupts */
 755                         writel(0xffffffff, phba->HAregaddr);
 756                         readl(phba->HAregaddr); /* flush */
 757                 }
 758                 phba->link_state = LPFC_HBA_ERROR;
 759                 if (rc != MBX_BUSY || flag == MBX_POLL)
 760                         mempool_free(pmb, phba->mbox_mem_pool);
 761                 return -EIO;
 762         }
 763         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 764         if (flag == MBX_POLL)
 765                 mempool_free(pmb, phba->mbox_mem_pool);
 766
 767         return 0;
 768 }
 769
 770 /**
 771  * lpfc_hba_down_link - this routine downs the FC link
 772  * @phba: pointer to lpfc hba data structure.
 773  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 774  *
 775  * This routine will issue the DOWN_LINK mailbox command call.
 776  * It is available to other drivers through the lpfc_hba data
 777  * structure for use to stop the link.
 778  *
 779  * Return code
 780  *              0 - success
 781  *              Any other value - error
 782  **/
 783 static int
 784 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 785 {
 786         LPFC_MBOXQ_t *pmb;
 787         int rc;
 788
 789         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 790         if (!pmb) {
 791                 phba->link_state = LPFC_HBA_ERROR;
 792                 return -ENOMEM;
 793         }
 794
 795         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 796                         "0491 Adapter Link is disabled.\n");
 797         lpfc_down_link(phba, pmb);
 798         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 799         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 800         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 801                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
 802                                 "2522 Adapter failed to issue DOWN_LINK"
 803                                 " mbox command rc 0x%x\n", rc);
 804
 805                 mempool_free(pmb, phba->mbox_mem_pool);
 806                 return -EIO;
 807         }
 808         if (flag == MBX_POLL)
 809                 mempool_free(pmb, phba->mbox_mem_pool);
 810
 811         return 0;
 812 }
 813
 814 /**
 815  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 816  * @phba: pointer to lpfc HBA data structure.
 817  *
 818  * This routine will do LPFC uninitialization before the HBA is reset when
 819  * bringing down the SLI Layer.
 820  *
 821  * Return codes
 822  *   0 - success.
 823  *   Any other value - error.
 824  **/
 825 int
 826 lpfc_hba_down_prep(struct lpfc_hba *phba)
 827 {
 828         struct lpfc_vport **vports;
 829         int i;
 830
 831         if (phba->sli_rev <= LPFC_SLI_REV3) {
 832                 /* Disable interrupts */
 833                 writel(0, phba->HCregaddr);
 834                 readl(phba->HCregaddr); /* flush */
 835         }
 836
 837         if (phba->pport->load_flag & FC_UNLOADING)
 838                 lpfc_cleanup_discovery_resources(phba->pport);
 839         else {
 840                 vports = lpfc_create_vport_work_array(phba);
 841                 if (vports != NULL)
 842                         for (i = 0; i <= phba->max_vports &&
 843                                 vports[i] != NULL; i++)
 844                                 lpfc_cleanup_discovery_resources(vports[i]);
 845                 lpfc_destroy_vport_work_array(phba, vports);
 846         }
 847         return 0;
 848 }
 849
 850 /**
 851  * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free
 852  * rspiocb which got deferred
 853  *
 854  * @phba: pointer to lpfc HBA data structure.
 855  *
 856  * This routine will cleanup completed slow path events after HBA is reset
 857  * when bringing down the SLI Layer.
 858  *
 859  *
 860  * Return codes
 861  *   void.
 862  **/
 863 static void
 864 lpfc_sli4_free_sp_events(struct lpfc_hba *phba)
 865 {
 866         struct lpfc_iocbq *rspiocbq;
 867         struct hbq_dmabuf *dmabuf;
 868         struct lpfc_cq_event *cq_event;
 869
 870         spin_lock_irq(&phba->hbalock);
 871         phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
 872         spin_unlock_irq(&phba->hbalock);
 873
 874         while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
 875                 /* Get the response iocb from the head of work queue */
 876                 spin_lock_irq(&phba->hbalock);
 877                 list_remove_head(&phba->sli4_hba.sp_queue_event,
 878                                  cq_event, struct lpfc_cq_event, list);
 879                 spin_unlock_irq(&phba->hbalock);
 880
 881                 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
 882                 case CQE_CODE_COMPL_WQE:
 883                         rspiocbq = container_of(cq_event, struct lpfc_iocbq,
 884                                                  cq_event);
 885                         lpfc_sli_release_iocbq(phba, rspiocbq);
 886                         break;
 887                 case CQE_CODE_RECEIVE:
 888                 case CQE_CODE_RECEIVE_V1:
 889                         dmabuf = container_of(cq_event, struct hbq_dmabuf,
 890                                               cq_event);
 891                         lpfc_in_buf_free(phba, &dmabuf->dbuf);
 892                 }
 893         }
 894 }
 895
 896 /**
 897  * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset
 898  * @phba: pointer to lpfc HBA data structure.
 899  *
 900  * This routine will cleanup posted ELS buffers after the HBA is reset
 901  * when bringing down the SLI Layer.
 902  *
 903  *
 904  * Return codes
 905  *   void.
 906  **/
 907 static void
 908 lpfc_hba_free_post_buf(struct lpfc_hba *phba)
 909 {
 910         struct lpfc_sli *psli = &phba->sli;
 911         struct lpfc_sli_ring *pring;
 912         struct lpfc_dmabuf *mp, *next_mp;
 913         LIST_HEAD(buflist);
 914         int count;
 915
 916         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 917                 lpfc_sli_hbqbuf_free_all(phba);
 918         else {
 919                 /* Cleanup preposted buffers on the ELS ring */
 920                 pring = &psli->sli3_ring[LPFC_ELS_RING];
 921                 spin_lock_irq(&phba->hbalock);
 922                 list_splice_init(&pring->postbufq, &buflist);
 923                 spin_unlock_irq(&phba->hbalock);
 924
 925                 count = 0;
 926                 list_for_each_entry_safe(mp, next_mp, &buflist, list) {
 927                         list_del(&mp->list);
 928                         count++;
 929                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 930                         kfree(mp);
 931                 }
 932
 933                 spin_lock_irq(&phba->hbalock);
 934                 pring->postbufq_cnt -= count;
 935                 spin_unlock_irq(&phba->hbalock);
 936         }
 937 }
 938
 939 /**
 940  * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset
 941  * @phba: pointer to lpfc HBA data structure.
 942  *
 943  * This routine will cleanup the txcmplq after the HBA is reset when bringing
 944  * down the SLI Layer.
 945  *
 946  * Return codes
 947  *   void
 948  **/
 949 static void
 950 lpfc_hba_clean_txcmplq(struct lpfc_hba *phba)
 951 {
 952         struct lpfc_sli *psli = &phba->sli;
 953         struct lpfc_queue *qp = NULL;
 954         struct lpfc_sli_ring *pring;
 955         LIST_HEAD(completions);
 956         int i;
 957         struct lpfc_iocbq *piocb, *next_iocb;
 958
 959         if (phba->sli_rev != LPFC_SLI_REV4) {
 960                 for (i = 0; i < psli->num_rings; i++) {
 961                         pring = &psli->sli3_ring[i];
 962                         spin_lock_irq(&phba->hbalock);
 963                         /* At this point in time the HBA is either reset or DOA
 964                          * Nothing should be on txcmplq as it will
 965                          * NEVER complete.
 966                          */
 967                         list_splice_init(&pring->txcmplq, &completions);
 968                         pring->txcmplq_cnt = 0;
 969                         spin_unlock_irq(&phba->hbalock);
 970
 971                         lpfc_sli_abort_iocb_ring(phba, pring);
 972                 }
 973                 /* Cancel all the IOCBs from the completions list */
 974                 lpfc_sli_cancel_iocbs(phba, &completions,
 975                                       IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 976                 return;
 977         }
 978         list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) {
 979                 pring = qp->pring;
 980                 if (!pring)
 981                         continue;
 982                 spin_lock_irq(&pring->ring_lock);
 983                 list_for_each_entry_safe(piocb, next_iocb,
 984                                          &pring->txcmplq, list)
 985                         piocb->cmd_flag &= ~LPFC_IO_ON_TXCMPLQ;
 986                 list_splice_init(&pring->txcmplq, &completions);
 987                 pring->txcmplq_cnt = 0;
 988                 spin_unlock_irq(&pring->ring_lock);
 989                 lpfc_sli_abort_iocb_ring(phba, pring);
 990         }
 991         /* Cancel all the IOCBs from the completions list */
 992         lpfc_sli_cancel_iocbs(phba, &completions,
 993                               IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED);
 994 }
 995
 996 /**
 997  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 998  * @phba: pointer to lpfc HBA data structure.
 999  *
1000  * This routine will do uninitialization after the HBA is reset when bring
1001  * down the SLI Layer.
1002  *
1003  * Return codes
1004  *   0 - success.
1005  *   Any other value - error.
1006  **/
1007 static int
1008 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
1009 {
1010         lpfc_hba_free_post_buf(phba);
1011         lpfc_hba_clean_txcmplq(phba);
1012         return 0;
1013 }
1014
1015 /**
1016  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
1017  * @phba: pointer to lpfc HBA data structure.
1018  *
1019  * This routine will do uninitialization after the HBA is reset when bring
1020  * down the SLI Layer.
1021  *
1022  * Return codes
1023  *   0 - success.
1024  *   Any other value - error.
1025  **/
1026 static int
1027 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
1028 {
1029         struct lpfc_io_buf *psb, *psb_next;
1030         struct lpfc_async_xchg_ctx *ctxp, *ctxp_next;
1031         struct lpfc_sli4_hdw_queue *qp;
1032         LIST_HEAD(aborts);
1033         LIST_HEAD(nvme_aborts);
1034         LIST_HEAD(nvmet_aborts);
1035         struct lpfc_sglq *sglq_entry = NULL;
1036         int cnt, idx;
1037
1038
1039         lpfc_sli_hbqbuf_free_all(phba);
1040         lpfc_hba_clean_txcmplq(phba);
1041
1042         /* At this point in time the HBA is either reset or DOA. Either
1043          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
1044          * on the lpfc_els_sgl_list so that it can either be freed if the
1045          * driver is unloading or reposted if the driver is restarting
1046          * the port.
1047          */
1048
1049         /* sgl_list_lock required because worker thread uses this
1050          * list.
1051          */
1052         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
1053         list_for_each_entry(sglq_entry,
1054                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
1055                 sglq_entry->state = SGL_FREED;
1056
1057         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
1058                         &phba->sli4_hba.lpfc_els_sgl_list);
1059
1060
1061         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
1062
1063         /* abts_xxxx_buf_list_lock required because worker thread uses this
1064          * list.
1065          */
1066         spin_lock_irq(&phba->hbalock);
1067         cnt = 0;
1068         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
1069                 qp = &phba->sli4_hba.hdwq[idx];
1070
1071                 spin_lock(&qp->abts_io_buf_list_lock);
1072                 list_splice_init(&qp->lpfc_abts_io_buf_list,
1073                                  &aborts);
1074
1075                 list_for_each_entry_safe(psb, psb_next, &aborts, list) {
1076                         psb->pCmd = NULL;
1077                         psb->status = IOSTAT_SUCCESS;
1078                         cnt++;
1079                 }
1080                 spin_lock(&qp->io_buf_list_put_lock);
1081                 list_splice_init(&aborts, &qp->lpfc_io_buf_list_put);
1082                 qp->put_io_bufs += qp->abts_scsi_io_bufs;
1083                 qp->put_io_bufs += qp->abts_nvme_io_bufs;
1084                 qp->abts_scsi_io_bufs = 0;
1085                 qp->abts_nvme_io_bufs = 0;
1086                 spin_unlock(&qp->io_buf_list_put_lock);
1087                 spin_unlock(&qp->abts_io_buf_list_lock);
1088         }
1089         spin_unlock_irq(&phba->hbalock);
1090
1091         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
1092                 spin_lock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1093                 list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list,
1094                                  &nvmet_aborts);
1095                 spin_unlock_irq(&phba->sli4_hba.abts_nvmet_buf_list_lock);
1096                 list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) {
1097                         ctxp->flag &= ~(LPFC_NVME_XBUSY | LPFC_NVME_ABORT_OP);
1098                         lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf);
1099                 }
1100         }
1101
1102         lpfc_sli4_free_sp_events(phba);
1103         return cnt;
1104 }
1105
1106 /**
1107  * lpfc_hba_down_post - Wrapper func for hba down post routine
1108  * @phba: pointer to lpfc HBA data structure.
1109  *
1110  * This routine wraps the actual SLI3 or SLI4 routine for performing
1111  * uninitialization after the HBA is reset when bring down the SLI Layer.
1112  *
1113  * Return codes
1114  *   0 - success.
1115  *   Any other value - error.
1116  **/
1117 int
1118 lpfc_hba_down_post(struct lpfc_hba *phba)
1119 {
1120         return (*phba->lpfc_hba_down_post)(phba);
1121 }
1122
1123 /**
1124  * lpfc_hb_timeout - The HBA-timer timeout handler
1125  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1126  *
1127  * This is the HBA-timer timeout handler registered to the lpfc driver. When
1128  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
1129  * work-port-events bitmap and the worker thread is notified. This timeout
1130  * event will be used by the worker thread to invoke the actual timeout
1131  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
1132  * be performed in the timeout handler and the HBA timeout event bit shall
1133  * be cleared by the worker thread after it has taken the event bitmap out.
1134  **/
1135 static void
1136 lpfc_hb_timeout(struct timer_list *t)
1137 {
1138         struct lpfc_hba *phba;
1139         uint32_t tmo_posted;
1140         unsigned long iflag;
1141
1142         phba = from_timer(phba, t, hb_tmofunc);
1143
1144         /* Check for heart beat timeout conditions */
1145         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1146         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
1147         if (!tmo_posted)
1148                 phba->pport->work_port_events |= WORKER_HB_TMO;
1149         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1150
1151         /* Tell the worker thread there is work to do */
1152         if (!tmo_posted)
1153                 lpfc_worker_wake_up(phba);
1154         return;
1155 }
1156
1157 /**
1158  * lpfc_rrq_timeout - The RRQ-timer timeout handler
1159  * @t: timer context used to obtain the pointer to lpfc hba data structure.
1160  *
1161  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
1162  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
1163  * work-port-events bitmap and the worker thread is notified. This timeout
1164  * event will be used by the worker thread to invoke the actual timeout
1165  * handler routine, lpfc_rrq_handler. Any periodical operations will
1166  * be performed in the timeout handler and the RRQ timeout event bit shall
1167  * be cleared by the worker thread after it has taken the event bitmap out.
1168  **/
1169 static void
1170 lpfc_rrq_timeout(struct timer_list *t)
1171 {
1172         struct lpfc_hba *phba;
1173         unsigned long iflag;
1174
1175         phba = from_timer(phba, t, rrq_tmr);
1176         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
1177         if (!(phba->pport->load_flag & FC_UNLOADING))
1178                 phba->hba_flag |= HBA_RRQ_ACTIVE;
1179         else
1180                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
1181         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
1182
1183         if (!(phba->pport->load_flag & FC_UNLOADING))
1184                 lpfc_worker_wake_up(phba);
1185 }
1186
1187 /**
1188  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
1189  * @phba: pointer to lpfc hba data structure.
1190  * @pmboxq: pointer to the driver internal queue element for mailbox command.
1191  *
1192  * This is the callback function to the lpfc heart-beat mailbox command.
1193  * If configured, the lpfc driver issues the heart-beat mailbox command to
1194  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1195  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1196  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1197  * heart-beat outstanding state. Once the mailbox command comes back and
1198  * no error conditions detected, the heart-beat mailbox command timer is
1199  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1200  * state is cleared for the next heart-beat. If the timer expired with the
1201  * heart-beat outstanding state set, the driver will put the HBA offline.
1202  **/
1203 static void
1204 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1205 {
1206         unsigned long drvr_flag;
1207
1208         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1209         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
1210         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1211
1212         /* Check and reset heart-beat timer if necessary */
1213         mempool_free(pmboxq, phba->mbox_mem_pool);
1214         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1215                 !(phba->link_state == LPFC_HBA_ERROR) &&
1216                 !(phba->pport->load_flag & FC_UNLOADING))
1217                 mod_timer(&phba->hb_tmofunc,
1218                           jiffies +
1219                           msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
1220         return;
1221 }
1222
1223 /*
1224  * lpfc_idle_stat_delay_work - idle_stat tracking
1225  *
1226  * This routine tracks per-cq idle_stat and determines polling decisions.
1227  *
1228  * Return codes:
1229  *   None
1230  **/
1231 static void
1232 lpfc_idle_stat_delay_work(struct work_struct *work)
1233 {
1234         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1235                                              struct lpfc_hba,
1236                                              idle_stat_delay_work);
1237         struct lpfc_queue *cq;
1238         struct lpfc_sli4_hdw_queue *hdwq;
1239         struct lpfc_idle_stat *idle_stat;
1240         u32 i, idle_percent;
1241         u64 wall, wall_idle, diff_wall, diff_idle, busy_time;
1242
1243         if (phba->pport->load_flag & FC_UNLOADING)
1244                 return;
1245
1246         if (phba->link_state == LPFC_HBA_ERROR ||
1247             phba->pport->fc_flag & FC_OFFLINE_MODE ||
1248             phba->cmf_active_mode != LPFC_CFG_OFF)
1249                 goto requeue;
1250
1251         for_each_present_cpu(i) {
1252                 hdwq = &phba->sli4_hba.hdwq[phba->sli4_hba.cpu_map[i].hdwq];
1253                 cq = hdwq->io_cq;
1254
1255                 /* Skip if we've already handled this cq's primary CPU */
1256                 if (cq->chann != i)
1257                         continue;
1258
1259                 idle_stat = &phba->sli4_hba.idle_stat[i];
1260
1261                 /* get_cpu_idle_time returns values as running counters. Thus,
1262                  * to know the amount for this period, the prior counter values
1263                  * need to be subtracted from the current counter values.
1264                  * From there, the idle time stat can be calculated as a
1265                  * percentage of 100 - the sum of the other consumption times.
1266                  */
1267                 wall_idle = get_cpu_idle_time(i, &wall, 1);
1268                 diff_idle = wall_idle - idle_stat->prev_idle;
1269                 diff_wall = wall - idle_stat->prev_wall;
1270
1271                 if (diff_wall <= diff_idle)
1272                         busy_time = 0;
1273                 else
1274                         busy_time = diff_wall - diff_idle;
1275
1276                 idle_percent = div64_u64(100 * busy_time, diff_wall);
1277                 idle_percent = 100 - idle_percent;
1278
1279                 if (idle_percent < 15)
1280                         cq->poll_mode = LPFC_QUEUE_WORK;
1281                 else
1282                         cq->poll_mode = LPFC_IRQ_POLL;
1283
1284                 idle_stat->prev_idle = wall_idle;
1285                 idle_stat->prev_wall = wall;
1286         }
1287
1288 requeue:
1289         schedule_delayed_work(&phba->idle_stat_delay_work,
1290                               msecs_to_jiffies(LPFC_IDLE_STAT_DELAY));
1291 }
1292
1293 static void
1294 lpfc_hb_eq_delay_work(struct work_struct *work)
1295 {
1296         struct lpfc_hba *phba = container_of(to_delayed_work(work),
1297                                              struct lpfc_hba, eq_delay_work);
1298         struct lpfc_eq_intr_info *eqi, *eqi_new;
1299         struct lpfc_queue *eq, *eq_next;
1300         unsigned char *ena_delay = NULL;
1301         uint32_t usdelay;
1302         int i;
1303
1304         if (!phba->cfg_auto_imax || phba->pport->load_flag & FC_UNLOADING)
1305                 return;
1306
1307         if (phba->link_state == LPFC_HBA_ERROR ||
1308             phba->pport->fc_flag & FC_OFFLINE_MODE)
1309                 goto requeue;
1310
1311         ena_delay = kcalloc(phba->sli4_hba.num_possible_cpu, sizeof(*ena_delay),
1312                             GFP_KERNEL);
1313         if (!ena_delay)
1314                 goto requeue;
1315
1316         for (i = 0; i < phba->cfg_irq_chann; i++) {
1317                 /* Get the EQ corresponding to the IRQ vector */
1318                 eq = phba->sli4_hba.hba_eq_hdl[i].eq;
1319                 if (!eq)
1320                         continue;
1321                 if (eq->q_mode || eq->q_flag & HBA_EQ_DELAY_CHK) {
1322                         eq->q_flag &= ~HBA_EQ_DELAY_CHK;
1323                         ena_delay[eq->last_cpu] = 1;
1324                 }
1325         }
1326
1327         for_each_present_cpu(i) {
1328                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i);
1329                 if (ena_delay[i]) {
1330                         usdelay = (eqi->icnt >> 10) * LPFC_EQ_DELAY_STEP;
1331                         if (usdelay > LPFC_MAX_AUTO_EQ_DELAY)
1332                                 usdelay = LPFC_MAX_AUTO_EQ_DELAY;
1333                 } else {
1334                         usdelay = 0;
1335                 }
1336
1337                 eqi->icnt = 0;
1338
1339                 list_for_each_entry_safe(eq, eq_next, &eqi->list, cpu_list) {
1340                         if (unlikely(eq->last_cpu != i)) {
1341                                 eqi_new = per_cpu_ptr(phba->sli4_hba.eq_info,
1342                                                       eq->last_cpu);
1343                                 list_move_tail(&eq->cpu_list, &eqi_new->list);
1344                                 continue;
1345                         }
1346                         if (usdelay != eq->q_mode)
1347                                 lpfc_modify_hba_eq_delay(phba, eq->hdwq, 1,
1348                                                          usdelay);
1349                 }
1350         }
1351
1352         kfree(ena_delay);
1353
1354 requeue:
1355         queue_delayed_work(phba->wq, &phba->eq_delay_work,
1356                            msecs_to_jiffies(LPFC_EQ_DELAY_MSECS));
1357 }
1358
1359 /**
1360  * lpfc_hb_mxp_handler - Multi-XRI pools handler to adjust XRI distribution
1361  * @phba: pointer to lpfc hba data structure.
1362  *
1363  * For each heartbeat, this routine does some heuristic methods to adjust
1364  * XRI distribution. The goal is to fully utilize free XRIs.
1365  **/
1366 static void lpfc_hb_mxp_handler(struct lpfc_hba *phba)
1367 {
1368         u32 i;
1369         u32 hwq_count;
1370
1371         hwq_count = phba->cfg_hdw_queue;
1372         for (i = 0; i < hwq_count; i++) {
1373                 /* Adjust XRIs in private pool */
1374                 lpfc_adjust_pvt_pool_count(phba, i);
1375
1376                 /* Adjust high watermark */
1377                 lpfc_adjust_high_watermark(phba, i);
1378
1379 #ifdef LPFC_MXP_STAT
1380                 /* Snapshot pbl, pvt and busy count */
1381                 lpfc_snapshot_mxp(phba, i);
1382 #endif
1383         }
1384 }
1385
1386 /**
1387  * lpfc_issue_hb_mbox - Issues heart-beat mailbox command
1388  * @phba: pointer to lpfc hba data structure.
1389  *
1390  * If a HB mbox is not already in progrees, this routine will allocate
1391  * a LPFC_MBOXQ_t, populate it with a MBX_HEARTBEAT (0x31) command,
1392  * and issue it. The HBA_HBEAT_INP flag means the command is in progress.
1393  **/
1394 int
1395 lpfc_issue_hb_mbox(struct lpfc_hba *phba)
1396 {
1397         LPFC_MBOXQ_t *pmboxq;
1398         int retval;
1399
1400         /* Is a Heartbeat mbox already in progress */
1401         if (phba->hba_flag & HBA_HBEAT_INP)
1402                 return 0;
1403
1404         pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1405         if (!pmboxq)
1406                 return -ENOMEM;
1407
1408         lpfc_heart_beat(phba, pmboxq);
1409         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1410         pmboxq->vport = phba->pport;
1411         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1412
1413         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1414                 mempool_free(pmboxq, phba->mbox_mem_pool);
1415                 return -ENXIO;
1416         }
1417         phba->hba_flag |= HBA_HBEAT_INP;
1418
1419         return 0;
1420 }
1421
1422 /**
1423  * lpfc_issue_hb_tmo - Signals heartbeat timer to issue mbox command
1424  * @phba: pointer to lpfc hba data structure.
1425  *
1426  * The heartbeat timer (every 5 sec) will fire. If the HBA_HBEAT_TMO
1427  * flag is set, it will force a MBX_HEARTBEAT mbox command, regardless
1428  * of the value of lpfc_enable_hba_heartbeat.
1429  * If lpfc_enable_hba_heartbeat is set, the timeout routine will always
1430  * try to issue a MBX_HEARTBEAT mbox command.
1431  **/
1432 void
1433 lpfc_issue_hb_tmo(struct lpfc_hba *phba)
1434 {
1435         if (phba->cfg_enable_hba_heartbeat)
1436                 return;
1437         phba->hba_flag |= HBA_HBEAT_TMO;
1438 }
1439
1440 /**
1441  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1442  * @phba: pointer to lpfc hba data structure.
1443  *
1444  * This is the actual HBA-timer timeout handler to be invoked by the worker
1445  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1446  * handler performs any periodic operations needed for the device. If such
1447  * periodic event has already been attended to either in the interrupt handler
1448  * or by processing slow-ring or fast-ring events within the HBA-timer
1449  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1450  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1451  * is configured and there is no heart-beat mailbox command outstanding, a
1452  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1453  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1454  * to offline.
1455  **/
1456 void
1457 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1458 {
1459         struct lpfc_vport **vports;
1460         struct lpfc_dmabuf *buf_ptr;
1461         int retval = 0;
1462         int i, tmo;
1463         struct lpfc_sli *psli = &phba->sli;
1464         LIST_HEAD(completions);
1465
1466         if (phba->cfg_xri_rebalancing) {
1467                 /* Multi-XRI pools handler */
1468                 lpfc_hb_mxp_handler(phba);
1469         }
1470
1471         vports = lpfc_create_vport_work_array(phba);
1472         if (vports != NULL)
1473                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
1474                         lpfc_rcv_seq_check_edtov(vports[i]);
1475                         lpfc_fdmi_change_check(vports[i]);
1476                 }
1477         lpfc_destroy_vport_work_array(phba, vports);
1478
1479         if ((phba->link_state == LPFC_HBA_ERROR) ||
1480                 (phba->pport->load_flag & FC_UNLOADING) ||
1481                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1482                 return;
1483
1484         if (phba->elsbuf_cnt &&
1485                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1486                 spin_lock_irq(&phba->hbalock);
1487                 list_splice_init(&phba->elsbuf, &completions);
1488                 phba->elsbuf_cnt = 0;
1489                 phba->elsbuf_prev_cnt = 0;
1490                 spin_unlock_irq(&phba->hbalock);
1491
1492                 while (!list_empty(&completions)) {
1493                         list_remove_head(&completions, buf_ptr,
1494                                 struct lpfc_dmabuf, list);
1495                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1496                         kfree(buf_ptr);
1497                 }
1498         }
1499         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1500
1501         /* If there is no heart beat outstanding, issue a heartbeat command */
1502         if (phba->cfg_enable_hba_heartbeat) {
1503                 /* If IOs are completing, no need to issue a MBX_HEARTBEAT */
1504                 spin_lock_irq(&phba->pport->work_port_lock);
1505                 if (time_after(phba->last_completion_time +
1506                                 msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL),
1507                                 jiffies)) {
1508                         spin_unlock_irq(&phba->pport->work_port_lock);
1509                         if (phba->hba_flag & HBA_HBEAT_INP)
1510                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1511                         else
1512                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1513                         goto out;
1514                 }
1515                 spin_unlock_irq(&phba->pport->work_port_lock);
1516
1517                 /* Check if a MBX_HEARTBEAT is already in progress */
1518                 if (phba->hba_flag & HBA_HBEAT_INP) {
1519                         /*
1520                          * If heart beat timeout called with HBA_HBEAT_INP set
1521                          * we need to give the hb mailbox cmd a chance to
1522                          * complete or TMO.
1523                          */
1524                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1525                                 "0459 Adapter heartbeat still outstanding: "
1526                                 "last compl time was %d ms.\n",
1527                                 jiffies_to_msecs(jiffies
1528                                          - phba->last_completion_time));
1529                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1530                 } else {
1531                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1532                                 (list_empty(&psli->mboxq))) {
1533
1534                                 retval = lpfc_issue_hb_mbox(phba);
1535                                 if (retval) {
1536                                         tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1537                                         goto out;
1538                                 }
1539                                 phba->skipped_hb = 0;
1540                         } else if (time_before_eq(phba->last_completion_time,
1541                                         phba->skipped_hb)) {
1542                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1543                                         "2857 Last completion time not "
1544                                         " updated in %d ms\n",
1545                                         jiffies_to_msecs(jiffies
1546                                                  - phba->last_completion_time));
1547                         } else
1548                                 phba->skipped_hb = jiffies;
1549
1550                         tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1551                         goto out;
1552                 }
1553         } else {
1554                 /* Check to see if we want to force a MBX_HEARTBEAT */
1555                 if (phba->hba_flag & HBA_HBEAT_TMO) {
1556                         retval = lpfc_issue_hb_mbox(phba);
1557                         if (retval)
1558                                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1559                         else
1560                                 tmo = (1000 * LPFC_HB_MBOX_TIMEOUT);
1561                         goto out;
1562                 }
1563                 tmo = (1000 * LPFC_HB_MBOX_INTERVAL);
1564         }
1565 out:
1566         mod_timer(&phba->hb_tmofunc, jiffies + msecs_to_jiffies(tmo));
1567 }
1568
1569 /**
1570  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1571  * @phba: pointer to lpfc hba data structure.
1572  *
1573  * This routine is called to bring the HBA offline when HBA hardware error
1574  * other than Port Error 6 has been detected.
1575  **/
1576 static void
1577 lpfc_offline_eratt(struct lpfc_hba *phba)
1578 {
1579         struct lpfc_sli   *psli = &phba->sli;
1580
1581         spin_lock_irq(&phba->hbalock);
1582         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1583         spin_unlock_irq(&phba->hbalock);
1584         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1585
1586         lpfc_offline(phba);
1587         lpfc_reset_barrier(phba);
1588         spin_lock_irq(&phba->hbalock);
1589         lpfc_sli_brdreset(phba);
1590         spin_unlock_irq(&phba->hbalock);
1591         lpfc_hba_down_post(phba);
1592         lpfc_sli_brdready(phba, HS_MBRDY);
1593         lpfc_unblock_mgmt_io(phba);
1594         phba->link_state = LPFC_HBA_ERROR;
1595         return;
1596 }
1597
1598 /**
1599  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1600  * @phba: pointer to lpfc hba data structure.
1601  *
1602  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1603  * other than Port Error 6 has been detected.
1604  **/
1605 void
1606 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1607 {
1608         spin_lock_irq(&phba->hbalock);
1609         if (phba->link_state == LPFC_HBA_ERROR &&
1610             phba->hba_flag & HBA_PCI_ERR) {
1611                 spin_unlock_irq(&phba->hbalock);
1612                 return;
1613         }
1614         phba->link_state = LPFC_HBA_ERROR;
1615         spin_unlock_irq(&phba->hbalock);
1616
1617         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1618         lpfc_sli_flush_io_rings(phba);
1619         lpfc_offline(phba);
1620         lpfc_hba_down_post(phba);
1621         lpfc_unblock_mgmt_io(phba);
1622 }
1623
1624 /**
1625  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1626  * @phba: pointer to lpfc hba data structure.
1627  *
1628  * This routine is invoked to handle the deferred HBA hardware error
1629  * conditions. This type of error is indicated by HBA by setting ER1
1630  * and another ER bit in the host status register. The driver will
1631  * wait until the ER1 bit clears before handling the error condition.
1632  **/
1633 static void
1634 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1635 {
1636         uint32_t old_host_status = phba->work_hs;
1637         struct lpfc_sli *psli = &phba->sli;
1638
1639         /* If the pci channel is offline, ignore possible errors,
1640          * since we cannot communicate with the pci card anyway.
1641          */
1642         if (pci_channel_offline(phba->pcidev)) {
1643                 spin_lock_irq(&phba->hbalock);
1644                 phba->hba_flag &= ~DEFER_ERATT;
1645                 spin_unlock_irq(&phba->hbalock);
1646                 return;
1647         }
1648
1649         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1650                         "0479 Deferred Adapter Hardware Error "
1651                         "Data: x%x x%x x%x\n",
1652                         phba->work_hs, phba->work_status[0],
1653                         phba->work_status[1]);
1654
1655         spin_lock_irq(&phba->hbalock);
1656         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1657         spin_unlock_irq(&phba->hbalock);
1658
1659
1660         /*
1661          * Firmware stops when it triggred erratt. That could cause the I/Os
1662          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1663          * SCSI layer retry it after re-establishing link.
1664          */
1665         lpfc_sli_abort_fcp_rings(phba);
1666
1667         /*
1668          * There was a firmware error. Take the hba offline and then
1669          * attempt to restart it.
1670          */
1671         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1672         lpfc_offline(phba);
1673
1674         /* Wait for the ER1 bit to clear.*/
1675         while (phba->work_hs & HS_FFER1) {
1676                 msleep(100);
1677                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1678                         phba->work_hs = UNPLUG_ERR ;
1679                         break;
1680                 }
1681                 /* If driver is unloading let the worker thread continue */
1682                 if (phba->pport->load_flag & FC_UNLOADING) {
1683                         phba->work_hs = 0;
1684                         break;
1685                 }
1686         }
1687
1688         /*
1689          * This is to ptrotect against a race condition in which
1690          * first write to the host attention register clear the
1691          * host status register.
1692          */
1693         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1694                 phba->work_hs = old_host_status & ~HS_FFER1;
1695
1696         spin_lock_irq(&phba->hbalock);
1697         phba->hba_flag &= ~DEFER_ERATT;
1698         spin_unlock_irq(&phba->hbalock);
1699         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1700         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1701 }
1702
1703 static void
1704 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1705 {
1706         struct lpfc_board_event_header board_event;
1707         struct Scsi_Host *shost;
1708
1709         board_event.event_type = FC_REG_BOARD_EVENT;
1710         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1711         shost = lpfc_shost_from_vport(phba->pport);
1712         fc_host_post_vendor_event(shost, fc_get_event_number(),
1713                                   sizeof(board_event),
1714                                   (char *) &board_event,
1715                                   LPFC_NL_VENDOR_ID);
1716 }
1717
1718 /**
1719  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1720  * @phba: pointer to lpfc hba data structure.
1721  *
1722  * This routine is invoked to handle the following HBA hardware error
1723  * conditions:
1724  * 1 - HBA error attention interrupt
1725  * 2 - DMA ring index out of range
1726  * 3 - Mailbox command came back as unknown
1727  **/
1728 static void
1729 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1730 {
1731         struct lpfc_vport *vport = phba->pport;
1732         struct lpfc_sli   *psli = &phba->sli;
1733         uint32_t event_data;
1734         unsigned long temperature;
1735         struct temp_event temp_event_data;
1736         struct Scsi_Host  *shost;
1737
1738         /* If the pci channel is offline, ignore possible errors,
1739          * since we cannot communicate with the pci card anyway.
1740          */
1741         if (pci_channel_offline(phba->pcidev)) {
1742                 spin_lock_irq(&phba->hbalock);
1743                 phba->hba_flag &= ~DEFER_ERATT;
1744                 spin_unlock_irq(&phba->hbalock);
1745                 return;
1746         }
1747
1748         /* If resets are disabled then leave the HBA alone and return */
1749         if (!phba->cfg_enable_hba_reset)
1750                 return;
1751
1752         /* Send an internal error event to mgmt application */
1753         lpfc_board_errevt_to_mgmt(phba);
1754
1755         if (phba->hba_flag & DEFER_ERATT)
1756                 lpfc_handle_deferred_eratt(phba);
1757
1758         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1759                 if (phba->work_hs & HS_FFER6)
1760                         /* Re-establishing Link */
1761                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1762                                         "1301 Re-establishing Link "
1763                                         "Data: x%x x%x x%x\n",
1764                                         phba->work_hs, phba->work_status[0],
1765                                         phba->work_status[1]);
1766                 if (phba->work_hs & HS_FFER8)
1767                         /* Device Zeroization */
1768                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1769                                         "2861 Host Authentication device "
1770                                         "zeroization Data:x%x x%x x%x\n",
1771                                         phba->work_hs, phba->work_status[0],
1772                                         phba->work_status[1]);
1773
1774                 spin_lock_irq(&phba->hbalock);
1775                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1776                 spin_unlock_irq(&phba->hbalock);
1777
1778                 /*
1779                 * Firmware stops when it triggled erratt with HS_FFER6.
1780                 * That could cause the I/Os dropped by the firmware.
1781                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1782                 * retry it after re-establishing link.
1783                 */
1784                 lpfc_sli_abort_fcp_rings(phba);
1785
1786                 /*
1787                  * There was a firmware error.  Take the hba offline and then
1788                  * attempt to restart it.
1789                  */
1790                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1791                 lpfc_offline(phba);
1792                 lpfc_sli_brdrestart(phba);
1793                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1794                         lpfc_unblock_mgmt_io(phba);
1795                         return;
1796                 }
1797                 lpfc_unblock_mgmt_io(phba);
1798         } else if (phba->work_hs & HS_CRIT_TEMP) {
1799                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1800                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1801                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1802                 temp_event_data.data = (uint32_t)temperature;
1803
1804                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1805                                 "0406 Adapter maximum temperature exceeded "
1806                                 "(%ld), taking this port offline "
1807                                 "Data: x%x x%x x%x\n",
1808                                 temperature, phba->work_hs,
1809                                 phba->work_status[0], phba->work_status[1]);
1810
1811                 shost = lpfc_shost_from_vport(phba->pport);
1812                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1813                                           sizeof(temp_event_data),
1814                                           (char *) &temp_event_data,
1815                                           SCSI_NL_VID_TYPE_PCI
1816                                           | PCI_VENDOR_ID_EMULEX);
1817
1818                 spin_lock_irq(&phba->hbalock);
1819                 phba->over_temp_state = HBA_OVER_TEMP;
1820                 spin_unlock_irq(&phba->hbalock);
1821                 lpfc_offline_eratt(phba);
1822
1823         } else {
1824                 /* The if clause above forces this code path when the status
1825                  * failure is a value other than FFER6. Do not call the offline
1826                  * twice. This is the adapter hardware error path.
1827                  */
1828                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1829                                 "0457 Adapter Hardware Error "
1830                                 "Data: x%x x%x x%x\n",
1831                                 phba->work_hs,
1832                                 phba->work_status[0], phba->work_status[1]);
1833
1834                 event_data = FC_REG_DUMP_EVENT;
1835                 shost = lpfc_shost_from_vport(vport);
1836                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1837                                 sizeof(event_data), (char *) &event_data,
1838                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1839
1840                 lpfc_offline_eratt(phba);
1841         }
1842         return;
1843 }
1844
1845 /**
1846  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1847  * @phba: pointer to lpfc hba data structure.
1848  * @mbx_action: flag for mailbox shutdown action.
1849  * @en_rn_msg: send reset/port recovery message.
1850  * This routine is invoked to perform an SLI4 port PCI function reset in
1851  * response to port status register polling attention. It waits for port
1852  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1853  * During this process, interrupt vectors are freed and later requested
1854  * for handling possible port resource change.
1855  **/
1856 static int
1857 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action,
1858                             bool en_rn_msg)
1859 {
1860         int rc;
1861         uint32_t intr_mode;
1862         LPFC_MBOXQ_t *mboxq;
1863
1864         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
1865             LPFC_SLI_INTF_IF_TYPE_2) {
1866                 /*
1867                  * On error status condition, driver need to wait for port
1868                  * ready before performing reset.
1869                  */
1870                 rc = lpfc_sli4_pdev_status_reg_wait(phba);
1871                 if (rc)
1872                         return rc;
1873         }
1874
1875         /* need reset: attempt for port recovery */
1876         if (en_rn_msg)
1877                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1878                                 "2887 Reset Needed: Attempting Port "
1879                                 "Recovery...\n");
1880
1881         /* If we are no wait, the HBA has been reset and is not
1882          * functional, thus we should clear
1883          * (LPFC_SLI_ACTIVE | LPFC_SLI_MBOX_ACTIVE) flags.
1884          */
1885         if (mbx_action == LPFC_MBX_NO_WAIT) {
1886                 spin_lock_irq(&phba->hbalock);
1887                 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
1888                 if (phba->sli.mbox_active) {
1889                         mboxq = phba->sli.mbox_active;
1890                         mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
1891                         __lpfc_mbox_cmpl_put(phba, mboxq);
1892                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1893                         phba->sli.mbox_active = NULL;
1894                 }
1895                 spin_unlock_irq(&phba->hbalock);
1896         }
1897
1898         lpfc_offline_prep(phba, mbx_action);
1899         lpfc_sli_flush_io_rings(phba);
1900         lpfc_offline(phba);
1901         /* release interrupt for possible resource change */
1902         lpfc_sli4_disable_intr(phba);
1903         rc = lpfc_sli_brdrestart(phba);
1904         if (rc) {
1905                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1906                                 "6309 Failed to restart board\n");
1907                 return rc;
1908         }
1909         /* request and enable interrupt */
1910         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1911         if (intr_mode == LPFC_INTR_ERROR) {
1912                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1913                                 "3175 Failed to enable interrupt\n");
1914                 return -EIO;
1915         }
1916         phba->intr_mode = intr_mode;
1917         rc = lpfc_online(phba);
1918         if (rc == 0)
1919                 lpfc_unblock_mgmt_io(phba);
1920
1921         return rc;
1922 }
1923
1924 /**
1925  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1926  * @phba: pointer to lpfc hba data structure.
1927  *
1928  * This routine is invoked to handle the SLI4 HBA hardware error attention
1929  * conditions.
1930  **/
1931 static void
1932 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1933 {
1934         struct lpfc_vport *vport = phba->pport;
1935         uint32_t event_data;
1936         struct Scsi_Host *shost;
1937         uint32_t if_type;
1938         struct lpfc_register portstat_reg = {0};
1939         uint32_t reg_err1, reg_err2;
1940         uint32_t uerrlo_reg, uemasklo_reg;
1941         uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2;
1942         bool en_rn_msg = true;
1943         struct temp_event temp_event_data;
1944         struct lpfc_register portsmphr_reg;
1945         int rc, i;
1946
1947         /* If the pci channel is offline, ignore possible errors, since
1948          * we cannot communicate with the pci card anyway.
1949          */
1950         if (pci_channel_offline(phba->pcidev)) {
1951                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1952                                 "3166 pci channel is offline\n");
1953                 return;
1954         }
1955
1956         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
1957         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1958         switch (if_type) {
1959         case LPFC_SLI_INTF_IF_TYPE_0:
1960                 pci_rd_rc1 = lpfc_readl(
1961                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1962                                 &uerrlo_reg);
1963                 pci_rd_rc2 = lpfc_readl(
1964                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1965                                 &uemasklo_reg);
1966                 /* consider PCI bus read error as pci_channel_offline */
1967                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1968                         return;
1969                 if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) {
1970                         lpfc_sli4_offline_eratt(phba);
1971                         return;
1972                 }
1973                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1974                                 "7623 Checking UE recoverable");
1975
1976                 for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) {
1977                         if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
1978                                        &portsmphr_reg.word0))
1979                                 continue;
1980
1981                         smphr_port_status = bf_get(lpfc_port_smphr_port_status,
1982                                                    &portsmphr_reg);
1983                         if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1984                             LPFC_PORT_SEM_UE_RECOVERABLE)
1985                                 break;
1986                         /*Sleep for 1Sec, before checking SEMAPHORE */
1987                         msleep(1000);
1988                 }
1989
1990                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
1991                                 "4827 smphr_port_status x%x : Waited %dSec",
1992                                 smphr_port_status, i);
1993
1994                 /* Recoverable UE, reset the HBA device */
1995                 if ((smphr_port_status & LPFC_PORT_SEM_MASK) ==
1996                     LPFC_PORT_SEM_UE_RECOVERABLE) {
1997                         for (i = 0; i < 20; i++) {
1998                                 msleep(1000);
1999                                 if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
2000                                     &portsmphr_reg.word0) &&
2001                                     (LPFC_POST_STAGE_PORT_READY ==
2002                                      bf_get(lpfc_port_smphr_port_status,
2003                                      &portsmphr_reg))) {
2004                                         rc = lpfc_sli4_port_sta_fn_reset(phba,
2005                                                 LPFC_MBX_NO_WAIT, en_rn_msg);
2006                                         if (rc == 0)
2007                                                 return;
2008                                         lpfc_printf_log(phba, KERN_ERR,
2009                                                 LOG_TRACE_EVENT,
2010                                                 "4215 Failed to recover UE");
2011                                         break;
2012                                 }
2013                         }
2014                 }
2015                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2016                                 "7624 Firmware not ready: Failing UE recovery,"
2017                                 " waited %dSec", i);
2018                 phba->link_state = LPFC_HBA_ERROR;
2019                 break;
2020
2021         case LPFC_SLI_INTF_IF_TYPE_2:
2022         case LPFC_SLI_INTF_IF_TYPE_6:
2023                 pci_rd_rc1 = lpfc_readl(
2024                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
2025                                 &portstat_reg.word0);
2026                 /* consider PCI bus read error as pci_channel_offline */
2027                 if (pci_rd_rc1 == -EIO) {
2028                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2029                                 "3151 PCI bus read access failure: x%x\n",
2030                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
2031                         lpfc_sli4_offline_eratt(phba);
2032                         return;
2033                 }
2034                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
2035                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
2036                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
2037                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2038                                         "2889 Port Overtemperature event, "
2039                                         "taking port offline Data: x%x x%x\n",
2040                                         reg_err1, reg_err2);
2041
2042                         phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
2043                         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2044                         temp_event_data.event_code = LPFC_CRIT_TEMP;
2045                         temp_event_data.data = 0xFFFFFFFF;
2046
2047                         shost = lpfc_shost_from_vport(phba->pport);
2048                         fc_host_post_vendor_event(shost, fc_get_event_number(),
2049                                                   sizeof(temp_event_data),
2050                                                   (char *)&temp_event_data,
2051                                                   SCSI_NL_VID_TYPE_PCI
2052                                                   | PCI_VENDOR_ID_EMULEX);
2053
2054                         spin_lock_irq(&phba->hbalock);
2055                         phba->over_temp_state = HBA_OVER_TEMP;
2056                         spin_unlock_irq(&phba->hbalock);
2057                         lpfc_sli4_offline_eratt(phba);
2058                         return;
2059                 }
2060                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2061                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) {
2062                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2063                                         "3143 Port Down: Firmware Update "
2064                                         "Detected\n");
2065                         en_rn_msg = false;
2066                 } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2067                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2068                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2069                                         "3144 Port Down: Debug Dump\n");
2070                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2071                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
2072                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2073                                         "3145 Port Down: Provisioning\n");
2074
2075                 /* If resets are disabled then leave the HBA alone and return */
2076                 if (!phba->cfg_enable_hba_reset)
2077                         return;
2078
2079                 /* Check port status register for function reset */
2080                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT,
2081                                 en_rn_msg);
2082                 if (rc == 0) {
2083                         /* don't report event on forced debug dump */
2084                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
2085                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
2086                                 return;
2087                         else
2088                                 break;
2089                 }
2090                 /* fall through for not able to recover */
2091                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2092                                 "3152 Unrecoverable error\n");
2093                 phba->link_state = LPFC_HBA_ERROR;
2094                 break;
2095         case LPFC_SLI_INTF_IF_TYPE_1:
2096         default:
2097                 break;
2098         }
2099         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2100                         "3123 Report dump event to upper layer\n");
2101         /* Send an internal error event to mgmt application */
2102         lpfc_board_errevt_to_mgmt(phba);
2103
2104         event_data = FC_REG_DUMP_EVENT;
2105         shost = lpfc_shost_from_vport(vport);
2106         fc_host_post_vendor_event(shost, fc_get_event_number(),
2107                                   sizeof(event_data), (char *) &event_data,
2108                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
2109 }
2110
2111 /**
2112  * lpfc_handle_eratt - Wrapper func for handling hba error attention
2113  * @phba: pointer to lpfc HBA data structure.
2114  *
2115  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
2116  * routine from the API jump table function pointer from the lpfc_hba struct.
2117  *
2118  * Return codes
2119  *   0 - success.
2120  *   Any other value - error.
2121  **/
2122 void
2123 lpfc_handle_eratt(struct lpfc_hba *phba)
2124 {
2125         (*phba->lpfc_handle_eratt)(phba);
2126 }
2127
2128 /**
2129  * lpfc_handle_latt - The HBA link event handler
2130  * @phba: pointer to lpfc hba data structure.
2131  *
2132  * This routine is invoked from the worker thread to handle a HBA host
2133  * attention link event. SLI3 only.
2134  **/
2135 void
2136 lpfc_handle_latt(struct lpfc_hba *phba)
2137 {
2138         struct lpfc_vport *vport = phba->pport;
2139         struct lpfc_sli   *psli = &phba->sli;
2140         LPFC_MBOXQ_t *pmb;
2141         volatile uint32_t control;
2142         struct lpfc_dmabuf *mp;
2143         int rc = 0;
2144
2145         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2146         if (!pmb) {
2147                 rc = 1;
2148                 goto lpfc_handle_latt_err_exit;
2149         }
2150
2151         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
2152         if (!mp) {
2153                 rc = 2;
2154                 goto lpfc_handle_latt_free_pmb;
2155         }
2156
2157         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
2158         if (!mp->virt) {
2159                 rc = 3;
2160                 goto lpfc_handle_latt_free_mp;
2161         }
2162
2163         /* Cleanup any outstanding ELS commands */
2164         lpfc_els_flush_all_cmd(phba);
2165
2166         psli->slistat.link_event++;
2167         lpfc_read_topology(phba, pmb, mp);
2168         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
2169         pmb->vport = vport;
2170         /* Block ELS IOCBs until we have processed this mbox command */
2171         phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
2172         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
2173         if (rc == MBX_NOT_FINISHED) {
2174                 rc = 4;
2175                 goto lpfc_handle_latt_free_mbuf;
2176         }
2177
2178         /* Clear Link Attention in HA REG */
2179         spin_lock_irq(&phba->hbalock);
2180         writel(HA_LATT, phba->HAregaddr);
2181         readl(phba->HAregaddr); /* flush */
2182         spin_unlock_irq(&phba->hbalock);
2183
2184         return;
2185
2186 lpfc_handle_latt_free_mbuf:
2187         phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
2188         lpfc_mbuf_free(phba, mp->virt, mp->phys);
2189 lpfc_handle_latt_free_mp:
2190         kfree(mp);
2191 lpfc_handle_latt_free_pmb:
2192         mempool_free(pmb, phba->mbox_mem_pool);
2193 lpfc_handle_latt_err_exit:
2194         /* Enable Link attention interrupts */
2195         spin_lock_irq(&phba->hbalock);
2196         psli->sli_flag |= LPFC_PROCESS_LA;
2197         control = readl(phba->HCregaddr);
2198         control |= HC_LAINT_ENA;
2199         writel(control, phba->HCregaddr);
2200         readl(phba->HCregaddr); /* flush */
2201
2202         /* Clear Link Attention in HA REG */
2203         writel(HA_LATT, phba->HAregaddr);
2204         readl(phba->HAregaddr); /* flush */
2205         spin_unlock_irq(&phba->hbalock);
2206         lpfc_linkdown(phba);
2207         phba->link_state = LPFC_HBA_ERROR;
2208
2209         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
2210                         "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
2211
2212         return;
2213 }
2214
2215 /**
2216  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
2217  * @phba: pointer to lpfc hba data structure.
2218  * @vpd: pointer to the vital product data.
2219  * @len: length of the vital product data in bytes.
2220  *
2221  * This routine parses the Vital Product Data (VPD). The VPD is treated as
2222  * an array of characters. In this routine, the ModelName, ProgramType, and
2223  * ModelDesc, etc. fields of the phba data structure will be populated.
2224  *
2225  * Return codes
2226  *   0 - pointer to the VPD passed in is NULL
2227  *   1 - success
2228  **/
2229 int
2230 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
2231 {
2232         uint8_t lenlo, lenhi;
2233         int Length;
2234         int i, j;
2235         int finished = 0;
2236         int index = 0;
2237
2238         if (!vpd)
2239                 return 0;
2240
2241         /* Vital Product */
2242         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2243                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
2244                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
2245                         (uint32_t) vpd[3]);
2246         while (!finished && (index < (len - 4))) {
2247                 switch (vpd[index]) {
2248                 case 0x82:
2249                 case 0x91:
2250                         index += 1;
2251                         lenlo = vpd[index];
2252                         index += 1;
2253                         lenhi = vpd[index];
2254                         index += 1;
2255                         i = ((((unsigned short)lenhi) << 8) + lenlo);
2256                         index += i;
2257                         break;
2258                 case 0x90:
2259                         index += 1;
2260                         lenlo = vpd[index];
2261                         index += 1;
2262                         lenhi = vpd[index];
2263                         index += 1;
2264                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
2265                         if (Length > len - index)
2266                                 Length = len - index;
2267                         while (Length > 0) {
2268                         /* Look for Serial Number */
2269                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
2270                                 index += 2;
2271                                 i = vpd[index];
2272                                 index += 1;
2273                                 j = 0;
2274                                 Length -= (3+i);
2275                                 while(i--) {
2276                                         phba->SerialNumber[j++] = vpd[index++];
2277                                         if (j == 31)
2278                                                 break;
2279                                 }
2280                                 phba->SerialNumber[j] = 0;
2281                                 continue;
2282                         }
2283                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
2284                                 phba->vpd_flag |= VPD_MODEL_DESC;
2285                                 index += 2;
2286                                 i = vpd[index];
2287                                 index += 1;
2288                                 j = 0;
2289                                 Length -= (3+i);
2290                                 while(i--) {
2291                                         phba->ModelDesc[j++] = vpd[index++];
2292                                         if (j == 255)
2293                                                 break;
2294                                 }
2295                                 phba->ModelDesc[j] = 0;
2296                                 continue;
2297                         }
2298                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
2299                                 phba->vpd_flag |= VPD_MODEL_NAME;
2300                                 index += 2;
2301                                 i = vpd[index];
2302                                 index += 1;
2303                                 j = 0;
2304                                 Length -= (3+i);
2305                                 while(i--) {
2306                                         phba->ModelName[j++] = vpd[index++];
2307                                         if (j == 79)
2308                                                 break;
2309                                 }
2310                                 phba->ModelName[j] = 0;
2311                                 continue;
2312                         }
2313                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
2314                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
2315                                 index += 2;
2316                                 i = vpd[index];
2317                                 index += 1;
2318                                 j = 0;
2319                                 Length -= (3+i);
2320                                 while(i--) {
2321                                         phba->ProgramType[j++] = vpd[index++];
2322                                         if (j == 255)
2323                                                 break;
2324                                 }
2325                                 phba->ProgramType[j] = 0;
2326                                 continue;
2327                         }
2328                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
2329                                 phba->vpd_flag |= VPD_PORT;
2330                                 index += 2;
2331                                 i = vpd[index];
2332                                 index += 1;
2333                                 j = 0;
2334                                 Length -= (3+i);
2335                                 while(i--) {
2336                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
2337                                             (phba->sli4_hba.pport_name_sta ==
2338                                              LPFC_SLI4_PPNAME_GET)) {
2339                                                 j++;
2340                                                 index++;
2341                                         } else
2342                                                 phba->Port[j++] = vpd[index++];
2343                                         if (j == 19)
2344                                                 break;
2345                                 }
2346                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
2347                                     (phba->sli4_hba.pport_name_sta ==
2348                                      LPFC_SLI4_PPNAME_NON))
2349                                         phba->Port[j] = 0;
2350                                 continue;
2351                         }
2352                         else {
2353                                 index += 2;
2354                                 i = vpd[index];
2355                                 index += 1;
2356                                 index += i;
2357                                 Length -= (3 + i);
2358                         }
2359                 }
2360                 finished = 0;
2361                 break;
2362                 case 0x78:
2363                         finished = 1;
2364                         break;
2365                 default:
2366                         index ++;
2367                         break;
2368                 }
2369         }
2370
2371         return(1);
2372 }
2373
2374 /**
2375  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
2376  * @phba: pointer to lpfc hba data structure.
2377  * @mdp: pointer to the data structure to hold the derived model name.
2378  * @descp: pointer to the data structure to hold the derived description.
2379  *
2380  * This routine retrieves HBA's description based on its registered PCI device
2381  * ID. The @descp passed into this function points to an array of 256 chars. It
2382  * shall be returned with the model name, maximum speed, and the host bus type.
2383  * The @mdp passed into this function points to an array of 80 chars. When the
2384  * function returns, the @mdp will be filled with the model name.
2385  **/
2386 static void
2387 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
2388 {
2389         lpfc_vpd_t *vp;
2390         uint16_t dev_id = phba->pcidev->device;
2391         int max_speed;
2392         int GE = 0;
2393         int oneConnect = 0; /* default is not a oneConnect */
2394         struct {
2395                 char *name;
2396                 char *bus;
2397                 char *function;
2398         } m = {"<Unknown>", "", ""};
2399
2400         if (mdp && mdp[0] != '\0'
2401                 && descp && descp[0] != '\0')
2402                 return;
2403
2404         if (phba->lmt & LMT_64Gb)
2405                 max_speed = 64;
2406         else if (phba->lmt & LMT_32Gb)
2407                 max_speed = 32;
2408         else if (phba->lmt & LMT_16Gb)
2409                 max_speed = 16;
2410         else if (phba->lmt & LMT_10Gb)
2411                 max_speed = 10;
2412         else if (phba->lmt & LMT_8Gb)
2413                 max_speed = 8;
2414         else if (phba->lmt & LMT_4Gb)
2415                 max_speed = 4;
2416         else if (phba->lmt & LMT_2Gb)
2417                 max_speed = 2;
2418         else if (phba->lmt & LMT_1Gb)
2419                 max_speed = 1;
2420         else
2421                 max_speed = 0;
2422
2423         vp = &phba->vpd;
2424
2425         switch (dev_id) {
2426         case PCI_DEVICE_ID_FIREFLY:
2427                 m = (typeof(m)){"LP6000", "PCI",
2428                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2429                 break;
2430         case PCI_DEVICE_ID_SUPERFLY:
2431                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
2432                         m = (typeof(m)){"LP7000", "PCI", ""};
2433                 else
2434                         m = (typeof(m)){"LP7000E", "PCI", ""};
2435                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2436                 break;
2437         case PCI_DEVICE_ID_DRAGONFLY:
2438                 m = (typeof(m)){"LP8000", "PCI",
2439                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2440                 break;
2441         case PCI_DEVICE_ID_CENTAUR:
2442                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
2443                         m = (typeof(m)){"LP9002", "PCI", ""};
2444                 else
2445                         m = (typeof(m)){"LP9000", "PCI", ""};
2446                 m.function = "Obsolete, Unsupported Fibre Channel Adapter";
2447                 break;
2448         case PCI_DEVICE_ID_RFLY:
2449                 m = (typeof(m)){"LP952", "PCI",
2450                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2451                 break;
2452         case PCI_DEVICE_ID_PEGASUS:
2453                 m = (typeof(m)){"LP9802", "PCI-X",
2454                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2455                 break;
2456         case PCI_DEVICE_ID_THOR:
2457                 m = (typeof(m)){"LP10000", "PCI-X",
2458                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2459                 break;
2460         case PCI_DEVICE_ID_VIPER:
2461                 m = (typeof(m)){"LPX1000",  "PCI-X",
2462                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2463                 break;
2464         case PCI_DEVICE_ID_PFLY:
2465                 m = (typeof(m)){"LP982", "PCI-X",
2466                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2467                 break;
2468         case PCI_DEVICE_ID_TFLY:
2469                 m = (typeof(m)){"LP1050", "PCI-X",
2470                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2471                 break;
2472         case PCI_DEVICE_ID_HELIOS:
2473                 m = (typeof(m)){"LP11000", "PCI-X2",
2474                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2475                 break;
2476         case PCI_DEVICE_ID_HELIOS_SCSP:
2477                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
2478                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2479                 break;
2480         case PCI_DEVICE_ID_HELIOS_DCSP:
2481                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
2482                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2483                 break;
2484         case PCI_DEVICE_ID_NEPTUNE:
2485                 m = (typeof(m)){"LPe1000", "PCIe",
2486                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2487                 break;
2488         case PCI_DEVICE_ID_NEPTUNE_SCSP:
2489                 m = (typeof(m)){"LPe1000-SP", "PCIe",
2490                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2491                 break;
2492         case PCI_DEVICE_ID_NEPTUNE_DCSP:
2493                 m = (typeof(m)){"LPe1002-SP", "PCIe",
2494                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2495                 break;
2496         case PCI_DEVICE_ID_BMID:
2497                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
2498                 break;
2499         case PCI_DEVICE_ID_BSMB:
2500                 m = (typeof(m)){"LP111", "PCI-X2",
2501                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2502                 break;
2503         case PCI_DEVICE_ID_ZEPHYR:
2504                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2505                 break;
2506         case PCI_DEVICE_ID_ZEPHYR_SCSP:
2507                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
2508                 break;
2509         case PCI_DEVICE_ID_ZEPHYR_DCSP:
2510                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
2511                 GE = 1;
2512                 break;
2513         case PCI_DEVICE_ID_ZMID:
2514                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
2515                 break;
2516         case PCI_DEVICE_ID_ZSMB:
2517                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
2518                 break;
2519         case PCI_DEVICE_ID_LP101:
2520                 m = (typeof(m)){"LP101", "PCI-X",
2521                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2522                 break;
2523         case PCI_DEVICE_ID_LP10000S:
2524                 m = (typeof(m)){"LP10000-S", "PCI",
2525                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2526                 break;
2527         case PCI_DEVICE_ID_LP11000S:
2528                 m = (typeof(m)){"LP11000-S", "PCI-X2",
2529                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2530                 break;
2531         case PCI_DEVICE_ID_LPE11000S:
2532                 m = (typeof(m)){"LPe11000-S", "PCIe",
2533                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2534                 break;
2535         case PCI_DEVICE_ID_SAT:
2536                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2537                 break;
2538         case PCI_DEVICE_ID_SAT_MID:
2539                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2540                 break;
2541         case PCI_DEVICE_ID_SAT_SMB:
2542                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2543                 break;
2544         case PCI_DEVICE_ID_SAT_DCSP:
2545                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2546                 break;
2547         case PCI_DEVICE_ID_SAT_SCSP:
2548                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2549                 break;
2550         case PCI_DEVICE_ID_SAT_S:
2551                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2552                 break;
2553         case PCI_DEVICE_ID_HORNET:
2554                 m = (typeof(m)){"LP21000", "PCIe",
2555                                 "Obsolete, Unsupported FCoE Adapter"};
2556                 GE = 1;
2557                 break;
2558         case PCI_DEVICE_ID_PROTEUS_VF:
2559                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2560                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2561                 break;
2562         case PCI_DEVICE_ID_PROTEUS_PF:
2563                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2564                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2565                 break;
2566         case PCI_DEVICE_ID_PROTEUS_S:
2567                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2568                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2569                 break;
2570         case PCI_DEVICE_ID_TIGERSHARK:
2571                 oneConnect = 1;
2572                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2573                 break;
2574         case PCI_DEVICE_ID_TOMCAT:
2575                 oneConnect = 1;
2576                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2577                 break;
2578         case PCI_DEVICE_ID_FALCON:
2579                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2580                                 "EmulexSecure Fibre"};
2581                 break;
2582         case PCI_DEVICE_ID_BALIUS:
2583                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2584                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2585                 break;
2586         case PCI_DEVICE_ID_LANCER_FC:
2587                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2588                 break;
2589         case PCI_DEVICE_ID_LANCER_FC_VF:
2590                 m = (typeof(m)){"LPe16000", "PCIe",
2591                                 "Obsolete, Unsupported Fibre Channel Adapter"};
2592                 break;
2593         case PCI_DEVICE_ID_LANCER_FCOE:
2594                 oneConnect = 1;
2595                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2596                 break;
2597         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2598                 oneConnect = 1;
2599                 m = (typeof(m)){"OCe15100", "PCIe",
2600                                 "Obsolete, Unsupported FCoE"};
2601                 break;
2602         case PCI_DEVICE_ID_LANCER_G6_FC:
2603                 m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"};
2604                 break;
2605         case PCI_DEVICE_ID_LANCER_G7_FC:
2606                 m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"};
2607                 break;
2608         case PCI_DEVICE_ID_LANCER_G7P_FC:
2609                 m = (typeof(m)){"LPe38000", "PCIe", "Fibre Channel Adapter"};
2610                 break;
2611         case PCI_DEVICE_ID_SKYHAWK:
2612         case PCI_DEVICE_ID_SKYHAWK_VF:
2613                 oneConnect = 1;
2614                 m = (typeof(m)){"OCe14000", "PCIe", "FCoE"};
2615                 break;
2616         default:
2617                 m = (typeof(m)){"Unknown", "", ""};
2618                 break;
2619         }
2620
2621         if (mdp && mdp[0] == '\0')
2622                 snprintf(mdp, 79,"%s", m.name);
2623         /*
2624          * oneConnect hba requires special processing, they are all initiators
2625          * and we put the port number on the end
2626          */
2627         if (descp && descp[0] == '\0') {
2628                 if (oneConnect)
2629                         snprintf(descp, 255,
2630                                 "Emulex OneConnect %s, %s Initiator %s",
2631                                 m.name, m.function,
2632                                 phba->Port);
2633                 else if (max_speed == 0)
2634                         snprintf(descp, 255,
2635                                 "Emulex %s %s %s",
2636                                 m.name, m.bus, m.function);
2637                 else
2638                         snprintf(descp, 255,
2639                                 "Emulex %s %d%s %s %s",
2640                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2641                                 m.bus, m.function);
2642         }
2643 }
2644
2645 /**
2646  * lpfc_sli3_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2647  * @phba: pointer to lpfc hba data structure.
2648  * @pring: pointer to a IOCB ring.
2649  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2650  *
2651  * This routine posts a given number of IOCBs with the associated DMA buffer
2652  * descriptors specified by the cnt argument to the given IOCB ring.
2653  *
2654  * Return codes
2655  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2656  **/
2657 int
2658 lpfc_sli3_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2659 {
2660         IOCB_t *icmd;
2661         struct lpfc_iocbq *iocb;
2662         struct lpfc_dmabuf *mp1, *mp2;
2663
2664         cnt += pring->missbufcnt;
2665
2666         /* While there are buffers to post */
2667         while (cnt > 0) {
2668                 /* Allocate buffer for  command iocb */
2669                 iocb = lpfc_sli_get_iocbq(phba);
2670                 if (iocb == NULL) {
2671                         pring->missbufcnt = cnt;
2672                         return cnt;
2673                 }
2674                 icmd = &iocb->iocb;
2675
2676                 /* 2 buffers can be posted per command */
2677                 /* Allocate buffer to post */
2678                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2679                 if (mp1)
2680                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2681                 if (!mp1 || !mp1->virt) {
2682                         kfree(mp1);
2683                         lpfc_sli_release_iocbq(phba, iocb);
2684                         pring->missbufcnt = cnt;
2685                         return cnt;
2686                 }
2687
2688                 INIT_LIST_HEAD(&mp1->list);
2689                 /* Allocate buffer to post */
2690                 if (cnt > 1) {
2691                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2692                         if (mp2)
2693                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2694                                                             &mp2->phys);
2695                         if (!mp2 || !mp2->virt) {
2696                                 kfree(mp2);
2697                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2698                                 kfree(mp1);
2699                                 lpfc_sli_release_iocbq(phba, iocb);
2700                                 pring->missbufcnt = cnt;
2701                                 return cnt;
2702                         }
2703
2704                         INIT_LIST_HEAD(&mp2->list);
2705                 } else {
2706                         mp2 = NULL;
2707                 }
2708
2709                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2710                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2711                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2712                 icmd->ulpBdeCount = 1;
2713                 cnt--;
2714                 if (mp2) {
2715                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2716                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2717                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2718                         cnt--;
2719                         icmd->ulpBdeCount = 2;
2720                 }
2721
2722                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2723                 icmd->ulpLe = 1;
2724
2725                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2726                     IOCB_ERROR) {
2727                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2728                         kfree(mp1);
2729                         cnt++;
2730                         if (mp2) {
2731                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2732                                 kfree(mp2);
2733                                 cnt++;
2734                         }
2735                         lpfc_sli_release_iocbq(phba, iocb);
2736                         pring->missbufcnt = cnt;
2737                         return cnt;
2738                 }
2739                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2740                 if (mp2)
2741                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2742         }
2743         pring->missbufcnt = 0;
2744         return 0;
2745 }
2746
2747 /**
2748  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2749  * @phba: pointer to lpfc hba data structure.
2750  *
2751  * This routine posts initial receive IOCB buffers to the ELS ring. The
2752  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2753  * set to 64 IOCBs. SLI3 only.
2754  *
2755  * Return codes
2756  *   0 - success (currently always success)
2757  **/
2758 static int
2759 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2760 {
2761         struct lpfc_sli *psli = &phba->sli;
2762
2763         /* Ring 0, ELS / CT buffers */
2764         lpfc_sli3_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2765         /* Ring 2 - FCP no buffers needed */
2766
2767         return 0;
2768 }
2769
2770 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2771
2772 /**
2773  * lpfc_sha_init - Set up initial array of hash table entries
2774  * @HashResultPointer: pointer to an array as hash table.
2775  *
2776  * This routine sets up the initial values to the array of hash table entries
2777  * for the LC HBAs.
2778  **/
2779 static void
2780 lpfc_sha_init(uint32_t * HashResultPointer)
2781 {
2782         HashResultPointer[0] = 0x67452301;
2783         HashResultPointer[1] = 0xEFCDAB89;
2784         HashResultPointer[2] = 0x98BADCFE;
2785         HashResultPointer[3] = 0x10325476;
2786         HashResultPointer[4] = 0xC3D2E1F0;
2787 }
2788
2789 /**
2790  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2791  * @HashResultPointer: pointer to an initial/result hash table.
2792  * @HashWorkingPointer: pointer to an working hash table.
2793  *
2794  * This routine iterates an initial hash table pointed by @HashResultPointer
2795  * with the values from the working hash table pointeed by @HashWorkingPointer.
2796  * The results are putting back to the initial hash table, returned through
2797  * the @HashResultPointer as the result hash table.
2798  **/
2799 static void
2800 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2801 {
2802         int t;
2803         uint32_t TEMP;
2804         uint32_t A, B, C, D, E;
2805         t = 16;
2806         do {
2807                 HashWorkingPointer[t] =
2808                     S(1,
2809                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2810                                                                      8] ^
2811                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2812         } while (++t <= 79);
2813         t = 0;
2814         A = HashResultPointer[0];
2815         B = HashResultPointer[1];
2816         C = HashResultPointer[2];
2817         D = HashResultPointer[3];
2818         E = HashResultPointer[4];
2819
2820         do {
2821                 if (t < 20) {
2822                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2823                 } else if (t < 40) {
2824                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2825                 } else if (t < 60) {
2826                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2827                 } else {
2828                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2829                 }
2830                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2831                 E = D;
2832                 D = C;
2833                 C = S(30, B);
2834                 B = A;
2835                 A = TEMP;
2836         } while (++t <= 79);
2837
2838         HashResultPointer[0] += A;
2839         HashResultPointer[1] += B;
2840         HashResultPointer[2] += C;
2841         HashResultPointer[3] += D;
2842         HashResultPointer[4] += E;
2843
2844 }
2845
2846 /**
2847  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2848  * @RandomChallenge: pointer to the entry of host challenge random number array.
2849  * @HashWorking: pointer to the entry of the working hash array.
2850  *
2851  * This routine calculates the working hash array referred by @HashWorking
2852  * from the challenge random numbers associated with the host, referred by
2853  * @RandomChallenge. The result is put into the entry of the working hash
2854  * array and returned by reference through @HashWorking.
2855  **/
2856 static void
2857 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2858 {
2859         *HashWorking = (*RandomChallenge ^ *HashWorking);
2860 }
2861
2862 /**
2863  * lpfc_hba_init - Perform special handling for LC HBA initialization
2864  * @phba: pointer to lpfc hba data structure.
2865  * @hbainit: pointer to an array of unsigned 32-bit integers.
2866  *
2867  * This routine performs the special handling for LC HBA initialization.
2868  **/
2869 void
2870 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2871 {
2872         int t;
2873         uint32_t *HashWorking;
2874         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2875
2876         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2877         if (!HashWorking)
2878                 return;
2879
2880         HashWorking[0] = HashWorking[78] = *pwwnn++;
2881         HashWorking[1] = HashWorking[79] = *pwwnn;
2882
2883         for (t = 0; t < 7; t++)
2884                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2885
2886         lpfc_sha_init(hbainit);
2887         lpfc_sha_iterate(hbainit, HashWorking);
2888         kfree(HashWorking);
2889 }
2890
2891 /**
2892  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2893  * @vport: pointer to a virtual N_Port data structure.
2894  *
2895  * This routine performs the necessary cleanups before deleting the @vport.
2896  * It invokes the discovery state machine to perform necessary state
2897  * transitions and to release the ndlps associated with the @vport. Note,
2898  * the physical port is treated as @vport 0.
2899  **/
2900 void
2901 lpfc_cleanup(struct lpfc_vport *vport)
2902 {
2903         struct lpfc_hba   *phba = vport->phba;
2904         struct lpfc_nodelist *ndlp, *next_ndlp;
2905         int i = 0;
2906
2907         if (phba->link_state > LPFC_LINK_DOWN)
2908                 lpfc_port_link_failure(vport);
2909
2910         /* Clean up VMID resources */
2911         if (lpfc_is_vmid_enabled(phba))
2912                 lpfc_vmid_vport_cleanup(vport);
2913
2914         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2915                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2916                     ndlp->nlp_DID == Fabric_DID) {
2917                         /* Just free up ndlp with Fabric_DID for vports */
2918                         lpfc_nlp_put(ndlp);
2919                         continue;
2920                 }
2921
2922                 if (ndlp->nlp_DID == Fabric_Cntl_DID &&
2923                     ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2924                         lpfc_nlp_put(ndlp);
2925                         continue;
2926                 }
2927
2928                 /* Fabric Ports not in UNMAPPED state are cleaned up in the
2929                  * DEVICE_RM event.
2930                  */
2931                 if (ndlp->nlp_type & NLP_FABRIC &&
2932                     ndlp->nlp_state == NLP_STE_UNMAPPED_NODE)
2933                         lpfc_disc_state_machine(vport, ndlp, NULL,
2934                                         NLP_EVT_DEVICE_RECOVERY);
2935
2936                 if (!(ndlp->fc4_xpt_flags & (NVME_XPT_REGD|SCSI_XPT_REGD)))
2937                         lpfc_disc_state_machine(vport, ndlp, NULL,
2938                                         NLP_EVT_DEVICE_RM);
2939         }
2940
2941         /* At this point, ALL ndlp's should be gone
2942          * because of the previous NLP_EVT_DEVICE_RM.
2943          * Lets wait for this to happen, if needed.
2944          */
2945         while (!list_empty(&vport->fc_nodes)) {
2946                 if (i++ > 3000) {
2947                         lpfc_printf_vlog(vport, KERN_ERR,
2948                                          LOG_TRACE_EVENT,
2949                                 "0233 Nodelist not empty\n");
2950                         list_for_each_entry_safe(ndlp, next_ndlp,
2951                                                 &vport->fc_nodes, nlp_listp) {
2952                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2953                                                  LOG_TRACE_EVENT,
2954                                                  "0282 did:x%x ndlp:x%px "
2955                                                  "refcnt:%d xflags x%x nflag x%x\n",
2956                                                  ndlp->nlp_DID, (void *)ndlp,
2957                                                  kref_read(&ndlp->kref),
2958                                                  ndlp->fc4_xpt_flags,
2959                                                  ndlp->nlp_flag);
2960                         }
2961                         break;
2962                 }
2963
2964                 /* Wait for any activity on ndlps to settle */
2965                 msleep(10);
2966         }
2967         lpfc_cleanup_vports_rrqs(vport, NULL);
2968 }
2969
2970 /**
2971  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2972  * @vport: pointer to a virtual N_Port data structure.
2973  *
2974  * This routine stops all the timers associated with a @vport. This function
2975  * is invoked before disabling or deleting a @vport. Note that the physical
2976  * port is treated as @vport 0.
2977  **/
2978 void
2979 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2980 {
2981         del_timer_sync(&vport->els_tmofunc);
2982         del_timer_sync(&vport->delayed_disc_tmo);
2983         lpfc_can_disctmo(vport);
2984         return;
2985 }
2986
2987 /**
2988  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2989  * @phba: pointer to lpfc hba data structure.
2990  *
2991  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2992  * caller of this routine should already hold the host lock.
2993  **/
2994 void
2995 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2996 {
2997         /* Clear pending FCF rediscovery wait flag */
2998         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2999
3000         /* Now, try to stop the timer */
3001         del_timer(&phba->fcf.redisc_wait);
3002 }
3003
3004 /**
3005  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
3006  * @phba: pointer to lpfc hba data structure.
3007  *
3008  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
3009  * checks whether the FCF rediscovery wait timer is pending with the host
3010  * lock held before proceeding with disabling the timer and clearing the
3011  * wait timer pendig flag.
3012  **/
3013 void
3014 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
3015 {
3016         spin_lock_irq(&phba->hbalock);
3017         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3018                 /* FCF rediscovery timer already fired or stopped */
3019                 spin_unlock_irq(&phba->hbalock);
3020                 return;
3021         }
3022         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3023         /* Clear failover in progress flags */
3024         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
3025         spin_unlock_irq(&phba->hbalock);
3026 }
3027
3028 /**
3029  * lpfc_cmf_stop - Stop CMF processing
3030  * @phba: pointer to lpfc hba data structure.
3031  *
3032  * This is called when the link goes down or if CMF mode is turned OFF.
3033  * It is also called when going offline or unloaded just before the
3034  * congestion info buffer is unregistered.
3035  **/
3036 void
3037 lpfc_cmf_stop(struct lpfc_hba *phba)
3038 {
3039         int cpu;
3040         struct lpfc_cgn_stat *cgs;
3041
3042         /* We only do something if CMF is enabled */
3043         if (!phba->sli4_hba.pc_sli4_params.cmf)
3044                 return;
3045
3046         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3047                         "6221 Stop CMF / Cancel Timer\n");
3048
3049         /* Cancel the CMF timer */
3050         hrtimer_cancel(&phba->cmf_timer);
3051
3052         /* Zero CMF counters */
3053         atomic_set(&phba->cmf_busy, 0);
3054         for_each_present_cpu(cpu) {
3055                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3056                 atomic64_set(&cgs->total_bytes, 0);
3057                 atomic64_set(&cgs->rcv_bytes, 0);
3058                 atomic_set(&cgs->rx_io_cnt, 0);
3059                 atomic64_set(&cgs->rx_latency, 0);
3060         }
3061         atomic_set(&phba->cmf_bw_wait, 0);
3062
3063         /* Resume any blocked IO - Queue unblock on workqueue */
3064         queue_work(phba->wq, &phba->unblock_request_work);
3065 }
3066
3067 static inline uint64_t
3068 lpfc_get_max_line_rate(struct lpfc_hba *phba)
3069 {
3070         uint64_t rate = lpfc_sli_port_speed_get(phba);
3071
3072         return ((((unsigned long)rate) * 1024 * 1024) / 10);
3073 }
3074
3075 void
3076 lpfc_cmf_signal_init(struct lpfc_hba *phba)
3077 {
3078         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3079                         "6223 Signal CMF init\n");
3080
3081         /* Use the new fc_linkspeed to recalculate */
3082         phba->cmf_interval_rate = LPFC_CMF_INTERVAL;
3083         phba->cmf_max_line_rate = lpfc_get_max_line_rate(phba);
3084         phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
3085                                             phba->cmf_interval_rate, 1000);
3086         phba->cmf_max_bytes_per_interval = phba->cmf_link_byte_count;
3087
3088         /* This is a signal to firmware to sync up CMF BW with link speed */
3089         lpfc_issue_cmf_sync_wqe(phba, 0, 0);
3090 }
3091
3092 /**
3093  * lpfc_cmf_start - Start CMF processing
3094  * @phba: pointer to lpfc hba data structure.
3095  *
3096  * This is called when the link comes up or if CMF mode is turned OFF
3097  * to Monitor or Managed.
3098  **/
3099 void
3100 lpfc_cmf_start(struct lpfc_hba *phba)
3101 {
3102         struct lpfc_cgn_stat *cgs;
3103         int cpu;
3104
3105         /* We only do something if CMF is enabled */
3106         if (!phba->sli4_hba.pc_sli4_params.cmf ||
3107             phba->cmf_active_mode == LPFC_CFG_OFF)
3108                 return;
3109
3110         /* Reinitialize congestion buffer info */
3111         lpfc_init_congestion_buf(phba);
3112
3113         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
3114         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
3115         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
3116         atomic_set(&phba->cgn_sync_warn_cnt, 0);
3117
3118         atomic_set(&phba->cmf_busy, 0);
3119         for_each_present_cpu(cpu) {
3120                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
3121                 atomic64_set(&cgs->total_bytes, 0);
3122                 atomic64_set(&cgs->rcv_bytes, 0);
3123                 atomic_set(&cgs->rx_io_cnt, 0);
3124                 atomic64_set(&cgs->rx_latency, 0);
3125         }
3126         phba->cmf_latency.tv_sec = 0;
3127         phba->cmf_latency.tv_nsec = 0;
3128
3129         lpfc_cmf_signal_init(phba);
3130
3131         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
3132                         "6222 Start CMF / Timer\n");
3133
3134         phba->cmf_timer_cnt = 0;
3135         hrtimer_start(&phba->cmf_timer,
3136                       ktime_set(0, LPFC_CMF_INTERVAL * 1000000),
3137                       HRTIMER_MODE_REL);
3138         /* Setup for latency check in IO cmpl routines */
3139         ktime_get_real_ts64(&phba->cmf_latency);
3140
3141         atomic_set(&phba->cmf_bw_wait, 0);
3142         atomic_set(&phba->cmf_stop_io, 0);
3143 }
3144
3145 /**
3146  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
3147  * @phba: pointer to lpfc hba data structure.
3148  *
3149  * This routine stops all the timers associated with a HBA. This function is
3150  * invoked before either putting a HBA offline or unloading the driver.
3151  **/
3152 void
3153 lpfc_stop_hba_timers(struct lpfc_hba *phba)
3154 {
3155         if (phba->pport)
3156                 lpfc_stop_vport_timers(phba->pport);
3157         cancel_delayed_work_sync(&phba->eq_delay_work);
3158         cancel_delayed_work_sync(&phba->idle_stat_delay_work);
3159         del_timer_sync(&phba->sli.mbox_tmo);
3160         del_timer_sync(&phba->fabric_block_timer);
3161         del_timer_sync(&phba->eratt_poll);
3162         del_timer_sync(&phba->hb_tmofunc);
3163         if (phba->sli_rev == LPFC_SLI_REV4) {
3164                 del_timer_sync(&phba->rrq_tmr);
3165                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
3166         }
3167         phba->hba_flag &= ~(HBA_HBEAT_INP | HBA_HBEAT_TMO);
3168
3169         switch (phba->pci_dev_grp) {
3170         case LPFC_PCI_DEV_LP:
3171                 /* Stop any LightPulse device specific driver timers */
3172                 del_timer_sync(&phba->fcp_poll_timer);
3173                 break;
3174         case LPFC_PCI_DEV_OC:
3175                 /* Stop any OneConnect device specific driver timers */
3176                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
3177                 break;
3178         default:
3179                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3180                                 "0297 Invalid device group (x%x)\n",
3181                                 phba->pci_dev_grp);
3182                 break;
3183         }
3184         return;
3185 }
3186
3187 /**
3188  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
3189  * @phba: pointer to lpfc hba data structure.
3190  * @mbx_action: flag for mailbox no wait action.
3191  *
3192  * This routine marks a HBA's management interface as blocked. Once the HBA's
3193  * management interface is marked as blocked, all the user space access to
3194  * the HBA, whether they are from sysfs interface or libdfc interface will
3195  * all be blocked. The HBA is set to block the management interface when the
3196  * driver prepares the HBA interface for online or offline.
3197  **/
3198 static void
3199 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
3200 {
3201         unsigned long iflag;
3202         uint8_t actcmd = MBX_HEARTBEAT;
3203         unsigned long timeout;
3204
3205         spin_lock_irqsave(&phba->hbalock, iflag);
3206         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
3207         spin_unlock_irqrestore(&phba->hbalock, iflag);
3208         if (mbx_action == LPFC_MBX_NO_WAIT)
3209                 return;
3210         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
3211         spin_lock_irqsave(&phba->hbalock, iflag);
3212         if (phba->sli.mbox_active) {
3213                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
3214                 /* Determine how long we might wait for the active mailbox
3215                  * command to be gracefully completed by firmware.
3216                  */
3217                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
3218                                 phba->sli.mbox_active) * 1000) + jiffies;
3219         }
3220         spin_unlock_irqrestore(&phba->hbalock, iflag);
3221
3222         /* Wait for the outstnading mailbox command to complete */
3223         while (phba->sli.mbox_active) {
3224                 /* Check active mailbox complete status every 2ms */
3225                 msleep(2);
3226                 if (time_after(jiffies, timeout)) {
3227                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3228                                         "2813 Mgmt IO is Blocked %x "
3229                                         "- mbox cmd %x still active\n",
3230                                         phba->sli.sli_flag, actcmd);
3231                         break;
3232                 }
3233         }
3234 }
3235
3236 /**
3237  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
3238  * @phba: pointer to lpfc hba data structure.
3239  *
3240  * Allocate RPIs for all active remote nodes. This is needed whenever
3241  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
3242  * is to fixup the temporary rpi assignments.
3243  **/
3244 void
3245 lpfc_sli4_node_prep(struct lpfc_hba *phba)
3246 {
3247         struct lpfc_nodelist  *ndlp, *next_ndlp;
3248         struct lpfc_vport **vports;
3249         int i, rpi;
3250
3251         if (phba->sli_rev != LPFC_SLI_REV4)
3252                 return;
3253
3254         vports = lpfc_create_vport_work_array(phba);
3255         if (vports == NULL)
3256                 return;
3257
3258         for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3259                 if (vports[i]->load_flag & FC_UNLOADING)
3260                         continue;
3261
3262                 list_for_each_entry_safe(ndlp, next_ndlp,
3263                                          &vports[i]->fc_nodes,
3264                                          nlp_listp) {
3265                         rpi = lpfc_sli4_alloc_rpi(phba);
3266                         if (rpi == LPFC_RPI_ALLOC_ERROR) {
3267                                 /* TODO print log? */
3268                                 continue;
3269                         }
3270                         ndlp->nlp_rpi = rpi;
3271                         lpfc_printf_vlog(ndlp->vport, KERN_INFO,
3272                                          LOG_NODE | LOG_DISCOVERY,
3273                                          "0009 Assign RPI x%x to ndlp x%px "
3274                                          "DID:x%06x flg:x%x\n",
3275                                          ndlp->nlp_rpi, ndlp, ndlp->nlp_DID,
3276                                          ndlp->nlp_flag);
3277                 }
3278         }
3279         lpfc_destroy_vport_work_array(phba, vports);
3280 }
3281
3282 /**
3283  * lpfc_create_expedite_pool - create expedite pool
3284  * @phba: pointer to lpfc hba data structure.
3285  *
3286  * This routine moves a batch of XRIs from lpfc_io_buf_list_put of HWQ 0
3287  * to expedite pool. Mark them as expedite.
3288  **/
3289 static void lpfc_create_expedite_pool(struct lpfc_hba *phba)
3290 {
3291         struct lpfc_sli4_hdw_queue *qp;
3292         struct lpfc_io_buf *lpfc_ncmd;
3293         struct lpfc_io_buf *lpfc_ncmd_next;
3294         struct lpfc_epd_pool *epd_pool;
3295         unsigned long iflag;
3296
3297         epd_pool = &phba->epd_pool;
3298         qp = &phba->sli4_hba.hdwq[0];
3299
3300         spin_lock_init(&epd_pool->lock);
3301         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3302         spin_lock(&epd_pool->lock);
3303         INIT_LIST_HEAD(&epd_pool->list);
3304         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3305                                  &qp->lpfc_io_buf_list_put, list) {
3306                 list_move_tail(&lpfc_ncmd->list, &epd_pool->list);
3307                 lpfc_ncmd->expedite = true;
3308                 qp->put_io_bufs--;
3309                 epd_pool->count++;
3310                 if (epd_pool->count >= XRI_BATCH)
3311                         break;
3312         }
3313         spin_unlock(&epd_pool->lock);
3314         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3315 }
3316
3317 /**
3318  * lpfc_destroy_expedite_pool - destroy expedite pool
3319  * @phba: pointer to lpfc hba data structure.
3320  *
3321  * This routine returns XRIs from expedite pool to lpfc_io_buf_list_put
3322  * of HWQ 0. Clear the mark.
3323  **/
3324 static void lpfc_destroy_expedite_pool(struct lpfc_hba *phba)
3325 {
3326         struct lpfc_sli4_hdw_queue *qp;
3327         struct lpfc_io_buf *lpfc_ncmd;
3328         struct lpfc_io_buf *lpfc_ncmd_next;
3329         struct lpfc_epd_pool *epd_pool;
3330         unsigned long iflag;
3331
3332         epd_pool = &phba->epd_pool;
3333         qp = &phba->sli4_hba.hdwq[0];
3334
3335         spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3336         spin_lock(&epd_pool->lock);
3337         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3338                                  &epd_pool->list, list) {
3339                 list_move_tail(&lpfc_ncmd->list,
3340                                &qp->lpfc_io_buf_list_put);
3341                 lpfc_ncmd->flags = false;
3342                 qp->put_io_bufs++;
3343                 epd_pool->count--;
3344         }
3345         spin_unlock(&epd_pool->lock);
3346         spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3347 }
3348
3349 /**
3350  * lpfc_create_multixri_pools - create multi-XRI pools
3351  * @phba: pointer to lpfc hba data structure.
3352  *
3353  * This routine initialize public, private per HWQ. Then, move XRIs from
3354  * lpfc_io_buf_list_put to public pool. High and low watermark are also
3355  * Initialized.
3356  **/
3357 void lpfc_create_multixri_pools(struct lpfc_hba *phba)
3358 {
3359         u32 i, j;
3360         u32 hwq_count;
3361         u32 count_per_hwq;
3362         struct lpfc_io_buf *lpfc_ncmd;
3363         struct lpfc_io_buf *lpfc_ncmd_next;
3364         unsigned long iflag;
3365         struct lpfc_sli4_hdw_queue *qp;
3366         struct lpfc_multixri_pool *multixri_pool;
3367         struct lpfc_pbl_pool *pbl_pool;
3368         struct lpfc_pvt_pool *pvt_pool;
3369
3370         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3371                         "1234 num_hdw_queue=%d num_present_cpu=%d common_xri_cnt=%d\n",
3372                         phba->cfg_hdw_queue, phba->sli4_hba.num_present_cpu,
3373                         phba->sli4_hba.io_xri_cnt);
3374
3375         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3376                 lpfc_create_expedite_pool(phba);
3377
3378         hwq_count = phba->cfg_hdw_queue;
3379         count_per_hwq = phba->sli4_hba.io_xri_cnt / hwq_count;
3380
3381         for (i = 0; i < hwq_count; i++) {
3382                 multixri_pool = kzalloc(sizeof(*multixri_pool), GFP_KERNEL);
3383
3384                 if (!multixri_pool) {
3385                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3386                                         "1238 Failed to allocate memory for "
3387                                         "multixri_pool\n");
3388
3389                         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3390                                 lpfc_destroy_expedite_pool(phba);
3391
3392                         j = 0;
3393                         while (j < i) {
3394                                 qp = &phba->sli4_hba.hdwq[j];
3395                                 kfree(qp->p_multixri_pool);
3396                                 j++;
3397                         }
3398                         phba->cfg_xri_rebalancing = 0;
3399                         return;
3400                 }
3401
3402                 qp = &phba->sli4_hba.hdwq[i];
3403                 qp->p_multixri_pool = multixri_pool;
3404
3405                 multixri_pool->xri_limit = count_per_hwq;
3406                 multixri_pool->rrb_next_hwqid = i;
3407
3408                 /* Deal with public free xri pool */
3409                 pbl_pool = &multixri_pool->pbl_pool;
3410                 spin_lock_init(&pbl_pool->lock);
3411                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3412                 spin_lock(&pbl_pool->lock);
3413                 INIT_LIST_HEAD(&pbl_pool->list);
3414                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3415                                          &qp->lpfc_io_buf_list_put, list) {
3416                         list_move_tail(&lpfc_ncmd->list, &pbl_pool->list);
3417                         qp->put_io_bufs--;
3418                         pbl_pool->count++;
3419                 }
3420                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3421                                 "1235 Moved %d buffers from PUT list over to pbl_pool[%d]\n",
3422                                 pbl_pool->count, i);
3423                 spin_unlock(&pbl_pool->lock);
3424                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3425
3426                 /* Deal with private free xri pool */
3427                 pvt_pool = &multixri_pool->pvt_pool;
3428                 pvt_pool->high_watermark = multixri_pool->xri_limit / 2;
3429                 pvt_pool->low_watermark = XRI_BATCH;
3430                 spin_lock_init(&pvt_pool->lock);
3431                 spin_lock_irqsave(&pvt_pool->lock, iflag);
3432                 INIT_LIST_HEAD(&pvt_pool->list);
3433                 pvt_pool->count = 0;
3434                 spin_unlock_irqrestore(&pvt_pool->lock, iflag);
3435         }
3436 }
3437
3438 /**
3439  * lpfc_destroy_multixri_pools - destroy multi-XRI pools
3440  * @phba: pointer to lpfc hba data structure.
3441  *
3442  * This routine returns XRIs from public/private to lpfc_io_buf_list_put.
3443  **/
3444 static void lpfc_destroy_multixri_pools(struct lpfc_hba *phba)
3445 {
3446         u32 i;
3447         u32 hwq_count;
3448         struct lpfc_io_buf *lpfc_ncmd;
3449         struct lpfc_io_buf *lpfc_ncmd_next;
3450         unsigned long iflag;
3451         struct lpfc_sli4_hdw_queue *qp;
3452         struct lpfc_multixri_pool *multixri_pool;
3453         struct lpfc_pbl_pool *pbl_pool;
3454         struct lpfc_pvt_pool *pvt_pool;
3455
3456         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
3457                 lpfc_destroy_expedite_pool(phba);
3458
3459         if (!(phba->pport->load_flag & FC_UNLOADING))
3460                 lpfc_sli_flush_io_rings(phba);
3461
3462         hwq_count = phba->cfg_hdw_queue;
3463
3464         for (i = 0; i < hwq_count; i++) {
3465                 qp = &phba->sli4_hba.hdwq[i];
3466                 multixri_pool = qp->p_multixri_pool;
3467                 if (!multixri_pool)
3468                         continue;
3469
3470                 qp->p_multixri_pool = NULL;
3471
3472                 spin_lock_irqsave(&qp->io_buf_list_put_lock, iflag);
3473
3474                 /* Deal with public free xri pool */
3475                 pbl_pool = &multixri_pool->pbl_pool;
3476                 spin_lock(&pbl_pool->lock);
3477
3478                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3479                                 "1236 Moving %d buffers from pbl_pool[%d] TO PUT list\n",
3480                                 pbl_pool->count, i);
3481
3482                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3483                                          &pbl_pool->list, list) {
3484                         list_move_tail(&lpfc_ncmd->list,
3485                                        &qp->lpfc_io_buf_list_put);
3486                         qp->put_io_bufs++;
3487                         pbl_pool->count--;
3488                 }
3489
3490                 INIT_LIST_HEAD(&pbl_pool->list);
3491                 pbl_pool->count = 0;
3492
3493                 spin_unlock(&pbl_pool->lock);
3494
3495                 /* Deal with private free xri pool */
3496                 pvt_pool = &multixri_pool->pvt_pool;
3497                 spin_lock(&pvt_pool->lock);
3498
3499                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3500                                 "1237 Moving %d buffers from pvt_pool[%d] TO PUT list\n",
3501                                 pvt_pool->count, i);
3502
3503                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3504                                          &pvt_pool->list, list) {
3505                         list_move_tail(&lpfc_ncmd->list,
3506                                        &qp->lpfc_io_buf_list_put);
3507                         qp->put_io_bufs++;
3508                         pvt_pool->count--;
3509                 }
3510
3511                 INIT_LIST_HEAD(&pvt_pool->list);
3512                 pvt_pool->count = 0;
3513
3514                 spin_unlock(&pvt_pool->lock);
3515                 spin_unlock_irqrestore(&qp->io_buf_list_put_lock, iflag);
3516
3517                 kfree(multixri_pool);
3518         }
3519 }
3520
3521 /**
3522  * lpfc_online - Initialize and bring a HBA online
3523  * @phba: pointer to lpfc hba data structure.
3524  *
3525  * This routine initializes the HBA and brings a HBA online. During this
3526  * process, the management interface is blocked to prevent user space access
3527  * to the HBA interfering with the driver initialization.
3528  *
3529  * Return codes
3530  *   0 - successful
3531  *   1 - failed
3532  **/
3533 int
3534 lpfc_online(struct lpfc_hba *phba)
3535 {
3536         struct lpfc_vport *vport;
3537         struct lpfc_vport **vports;
3538         int i, error = 0;
3539         bool vpis_cleared = false;
3540
3541         if (!phba)
3542                 return 0;
3543         vport = phba->pport;
3544
3545         if (!(vport->fc_flag & FC_OFFLINE_MODE))
3546                 return 0;
3547
3548         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3549                         "0458 Bring Adapter online\n");
3550
3551         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
3552
3553         if (phba->sli_rev == LPFC_SLI_REV4) {
3554                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
3555                         lpfc_unblock_mgmt_io(phba);
3556                         return 1;
3557                 }
3558                 spin_lock_irq(&phba->hbalock);
3559                 if (!phba->sli4_hba.max_cfg_param.vpi_used)
3560                         vpis_cleared = true;
3561                 spin_unlock_irq(&phba->hbalock);
3562
3563                 /* Reestablish the local initiator port.
3564                  * The offline process destroyed the previous lport.
3565                  */
3566                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME &&
3567                                 !phba->nvmet_support) {
3568                         error = lpfc_nvme_create_localport(phba->pport);
3569                         if (error)
3570                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
3571                                         "6132 NVME restore reg failed "
3572                                         "on nvmei error x%x\n", error);
3573                 }
3574         } else {
3575                 lpfc_sli_queue_init(phba);
3576                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
3577                         lpfc_unblock_mgmt_io(phba);
3578                         return 1;
3579                 }
3580         }
3581
3582         vports = lpfc_create_vport_work_array(phba);
3583         if (vports != NULL) {
3584                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3585                         struct Scsi_Host *shost;
3586                         shost = lpfc_shost_from_vport(vports[i]);
3587                         spin_lock_irq(shost->host_lock);
3588                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
3589                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
3590                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3591                         if (phba->sli_rev == LPFC_SLI_REV4) {
3592                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
3593                                 if ((vpis_cleared) &&
3594                                     (vports[i]->port_type !=
3595                                         LPFC_PHYSICAL_PORT))
3596                                         vports[i]->vpi = 0;
3597                         }
3598                         spin_unlock_irq(shost->host_lock);
3599                 }
3600         }
3601         lpfc_destroy_vport_work_array(phba, vports);
3602
3603         if (phba->cfg_xri_rebalancing)
3604                 lpfc_create_multixri_pools(phba);
3605
3606         lpfc_cpuhp_add(phba);
3607
3608         lpfc_unblock_mgmt_io(phba);
3609         return 0;
3610 }
3611
3612 /**
3613  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
3614  * @phba: pointer to lpfc hba data structure.
3615  *
3616  * This routine marks a HBA's management interface as not blocked. Once the
3617  * HBA's management interface is marked as not blocked, all the user space
3618  * access to the HBA, whether they are from sysfs interface or libdfc
3619  * interface will be allowed. The HBA is set to block the management interface
3620  * when the driver prepares the HBA interface for online or offline and then
3621  * set to unblock the management interface afterwards.
3622  **/
3623 void
3624 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
3625 {
3626         unsigned long iflag;
3627
3628         spin_lock_irqsave(&phba->hbalock, iflag);
3629         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
3630         spin_unlock_irqrestore(&phba->hbalock, iflag);
3631 }
3632
3633 /**
3634  * lpfc_offline_prep - Prepare a HBA to be brought offline
3635  * @phba: pointer to lpfc hba data structure.
3636  * @mbx_action: flag for mailbox shutdown action.
3637  *
3638  * This routine is invoked to prepare a HBA to be brought offline. It performs
3639  * unregistration login to all the nodes on all vports and flushes the mailbox
3640  * queue to make it ready to be brought offline.
3641  **/
3642 void
3643 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
3644 {
3645         struct lpfc_vport *vport = phba->pport;
3646         struct lpfc_nodelist  *ndlp, *next_ndlp;
3647         struct lpfc_vport **vports;
3648         struct Scsi_Host *shost;
3649         int i;
3650         int offline = 0;
3651
3652         if (vport->fc_flag & FC_OFFLINE_MODE)
3653                 return;
3654
3655         lpfc_block_mgmt_io(phba, mbx_action);
3656
3657         lpfc_linkdown(phba);
3658
3659         offline =  pci_channel_offline(phba->pcidev);
3660
3661         /* Issue an unreg_login to all nodes on all vports */
3662         vports = lpfc_create_vport_work_array(phba);
3663         if (vports != NULL) {
3664                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3665                         if (vports[i]->load_flag & FC_UNLOADING)
3666                                 continue;
3667                         shost = lpfc_shost_from_vport(vports[i]);
3668                         spin_lock_irq(shost->host_lock);
3669                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
3670                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3671                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
3672                         spin_unlock_irq(shost->host_lock);
3673
3674                         shost = lpfc_shost_from_vport(vports[i]);
3675                         list_for_each_entry_safe(ndlp, next_ndlp,
3676                                                  &vports[i]->fc_nodes,
3677                                                  nlp_listp) {
3678
3679                                 spin_lock_irq(&ndlp->lock);
3680                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
3681                                 spin_unlock_irq(&ndlp->lock);
3682
3683                                 if (offline) {
3684                                         spin_lock_irq(&ndlp->lock);
3685                                         ndlp->nlp_flag &= ~(NLP_UNREG_INP |
3686                                                             NLP_RPI_REGISTERED);
3687                                         spin_unlock_irq(&ndlp->lock);
3688                                 } else {
3689                                         lpfc_unreg_rpi(vports[i], ndlp);
3690                                 }
3691                                 /*
3692                                  * Whenever an SLI4 port goes offline, free the
3693                                  * RPI. Get a new RPI when the adapter port
3694                                  * comes back online.
3695                                  */
3696                                 if (phba->sli_rev == LPFC_SLI_REV4) {
3697                                         lpfc_printf_vlog(vports[i], KERN_INFO,
3698                                                  LOG_NODE | LOG_DISCOVERY,
3699                                                  "0011 Free RPI x%x on "
3700                                                  "ndlp: x%px did x%x\n",
3701                                                  ndlp->nlp_rpi, ndlp,
3702                                                  ndlp->nlp_DID);
3703                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
3704                                         ndlp->nlp_rpi = LPFC_RPI_ALLOC_ERROR;
3705                                 }
3706
3707                                 if (ndlp->nlp_type & NLP_FABRIC) {
3708                                         lpfc_disc_state_machine(vports[i], ndlp,
3709                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
3710
3711                                         /* Don't remove the node unless the node
3712                                          * has been unregistered with the
3713                                          * transport, and we're not in recovery
3714                                          * before dev_loss_tmo triggered.
3715                                          * Otherwise, let dev_loss take care of
3716                                          * the node.
3717                                          */
3718                                         if (!(ndlp->save_flags &
3719                                               NLP_IN_RECOV_POST_DEV_LOSS) &&
3720                                             !(ndlp->fc4_xpt_flags &
3721                                               (NVME_XPT_REGD | SCSI_XPT_REGD)))
3722                                                 lpfc_disc_state_machine
3723                                                         (vports[i], ndlp,
3724                                                          NULL,
3725                                                          NLP_EVT_DEVICE_RM);
3726                                 }
3727                         }
3728                 }
3729         }
3730         lpfc_destroy_vport_work_array(phba, vports);
3731
3732         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
3733
3734         if (phba->wq)
3735                 flush_workqueue(phba->wq);
3736 }
3737
3738 /**
3739  * lpfc_offline - Bring a HBA offline
3740  * @phba: pointer to lpfc hba data structure.
3741  *
3742  * This routine actually brings a HBA offline. It stops all the timers
3743  * associated with the HBA, brings down the SLI layer, and eventually
3744  * marks the HBA as in offline state for the upper layer protocol.
3745  **/
3746 void
3747 lpfc_offline(struct lpfc_hba *phba)
3748 {
3749         struct Scsi_Host  *shost;
3750         struct lpfc_vport **vports;
3751         int i;
3752
3753         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3754                 return;
3755
3756         /* stop port and all timers associated with this hba */
3757         lpfc_stop_port(phba);
3758
3759         /* Tear down the local and target port registrations.  The
3760          * nvme transports need to cleanup.
3761          */
3762         lpfc_nvmet_destroy_targetport(phba);
3763         lpfc_nvme_destroy_localport(phba->pport);
3764
3765         vports = lpfc_create_vport_work_array(phba);
3766         if (vports != NULL)
3767                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3768                         lpfc_stop_vport_timers(vports[i]);
3769         lpfc_destroy_vport_work_array(phba, vports);
3770         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
3771                         "0460 Bring Adapter offline\n");
3772         /* Bring down the SLI Layer and cleanup.  The HBA is offline
3773            now.  */
3774         lpfc_sli_hba_down(phba);
3775         spin_lock_irq(&phba->hbalock);
3776         phba->work_ha = 0;
3777         spin_unlock_irq(&phba->hbalock);
3778         vports = lpfc_create_vport_work_array(phba);
3779         if (vports != NULL)
3780                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
3781                         shost = lpfc_shost_from_vport(vports[i]);
3782                         spin_lock_irq(shost->host_lock);
3783                         vports[i]->work_port_events = 0;
3784                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
3785                         spin_unlock_irq(shost->host_lock);
3786                 }
3787         lpfc_destroy_vport_work_array(phba, vports);
3788         /* If OFFLINE flag is clear (i.e. unloading), cpuhp removal is handled
3789          * in hba_unset
3790          */
3791         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
3792                 __lpfc_cpuhp_remove(phba);
3793
3794         if (phba->cfg_xri_rebalancing)
3795                 lpfc_destroy_multixri_pools(phba);
3796 }
3797
3798 /**
3799  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
3800  * @phba: pointer to lpfc hba data structure.
3801  *
3802  * This routine is to free all the SCSI buffers and IOCBs from the driver
3803  * list back to kernel. It is called from lpfc_pci_remove_one to free
3804  * the internal resources before the device is removed from the system.
3805  **/
3806 static void
3807 lpfc_scsi_free(struct lpfc_hba *phba)
3808 {
3809         struct lpfc_io_buf *sb, *sb_next;
3810
3811         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
3812                 return;
3813
3814         spin_lock_irq(&phba->hbalock);
3815
3816         /* Release all the lpfc_scsi_bufs maintained by this host. */
3817
3818         spin_lock(&phba->scsi_buf_list_put_lock);
3819         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put,
3820                                  list) {
3821                 list_del(&sb->list);
3822                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3823                               sb->dma_handle);
3824                 kfree(sb);
3825                 phba->total_scsi_bufs--;
3826         }
3827         spin_unlock(&phba->scsi_buf_list_put_lock);
3828
3829         spin_lock(&phba->scsi_buf_list_get_lock);
3830         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get,
3831                                  list) {
3832                 list_del(&sb->list);
3833                 dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data,
3834                               sb->dma_handle);
3835                 kfree(sb);
3836                 phba->total_scsi_bufs--;
3837         }
3838         spin_unlock(&phba->scsi_buf_list_get_lock);
3839         spin_unlock_irq(&phba->hbalock);
3840 }
3841
3842 /**
3843  * lpfc_io_free - Free all the IO buffers and IOCBs from driver lists
3844  * @phba: pointer to lpfc hba data structure.
3845  *
3846  * This routine is to free all the IO buffers and IOCBs from the driver
3847  * list back to kernel. It is called from lpfc_pci_remove_one to free
3848  * the internal resources before the device is removed from the system.
3849  **/
3850 void
3851 lpfc_io_free(struct lpfc_hba *phba)
3852 {
3853         struct lpfc_io_buf *lpfc_ncmd, *lpfc_ncmd_next;
3854         struct lpfc_sli4_hdw_queue *qp;
3855         int idx;
3856
3857         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
3858                 qp = &phba->sli4_hba.hdwq[idx];
3859                 /* Release all the lpfc_nvme_bufs maintained by this host. */
3860                 spin_lock(&qp->io_buf_list_put_lock);
3861                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3862                                          &qp->lpfc_io_buf_list_put,
3863                                          list) {
3864                         list_del(&lpfc_ncmd->list);
3865                         qp->put_io_bufs--;
3866                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3867                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3868                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3869                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3870                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3871                         kfree(lpfc_ncmd);
3872                         qp->total_io_bufs--;
3873                 }
3874                 spin_unlock(&qp->io_buf_list_put_lock);
3875
3876                 spin_lock(&qp->io_buf_list_get_lock);
3877                 list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
3878                                          &qp->lpfc_io_buf_list_get,
3879                                          list) {
3880                         list_del(&lpfc_ncmd->list);
3881                         qp->get_io_bufs--;
3882                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
3883                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
3884                         if (phba->cfg_xpsgl && !phba->nvmet_support)
3885                                 lpfc_put_sgl_per_hdwq(phba, lpfc_ncmd);
3886                         lpfc_put_cmd_rsp_buf_per_hdwq(phba, lpfc_ncmd);
3887                         kfree(lpfc_ncmd);
3888                         qp->total_io_bufs--;
3889                 }
3890                 spin_unlock(&qp->io_buf_list_get_lock);
3891         }
3892 }
3893
3894 /**
3895  * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping
3896  * @phba: pointer to lpfc hba data structure.
3897  *
3898  * This routine first calculates the sizes of the current els and allocated
3899  * scsi sgl lists, and then goes through all sgls to updates the physical
3900  * XRIs assigned due to port function reset. During port initialization, the
3901  * current els and allocated scsi sgl lists are 0s.
3902  *
3903  * Return codes
3904  *   0 - successful (for now, it always returns 0)
3905  **/
3906 int
3907 lpfc_sli4_els_sgl_update(struct lpfc_hba *phba)
3908 {
3909         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
3910         uint16_t i, lxri, xri_cnt, els_xri_cnt;
3911         LIST_HEAD(els_sgl_list);
3912         int rc;
3913
3914         /*
3915          * update on pci function's els xri-sgl list
3916          */
3917         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
3918
3919         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
3920                 /* els xri-sgl expanded */
3921                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
3922                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3923                                 "3157 ELS xri-sgl count increased from "
3924                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3925                                 els_xri_cnt);
3926                 /* allocate the additional els sgls */
3927                 for (i = 0; i < xri_cnt; i++) {
3928                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
3929                                              GFP_KERNEL);
3930                         if (sglq_entry == NULL) {
3931                                 lpfc_printf_log(phba, KERN_ERR,
3932                                                 LOG_TRACE_EVENT,
3933                                                 "2562 Failure to allocate an "
3934                                                 "ELS sgl entry:%d\n", i);
3935                                 rc = -ENOMEM;
3936                                 goto out_free_mem;
3937                         }
3938                         sglq_entry->buff_type = GEN_BUFF_TYPE;
3939                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
3940                                                            &sglq_entry->phys);
3941                         if (sglq_entry->virt == NULL) {
3942                                 kfree(sglq_entry);
3943                                 lpfc_printf_log(phba, KERN_ERR,
3944                                                 LOG_TRACE_EVENT,
3945                                                 "2563 Failure to allocate an "
3946                                                 "ELS mbuf:%d\n", i);
3947                                 rc = -ENOMEM;
3948                                 goto out_free_mem;
3949                         }
3950                         sglq_entry->sgl = sglq_entry->virt;
3951                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
3952                         sglq_entry->state = SGL_FREED;
3953                         list_add_tail(&sglq_entry->list, &els_sgl_list);
3954                 }
3955                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3956                 list_splice_init(&els_sgl_list,
3957                                  &phba->sli4_hba.lpfc_els_sgl_list);
3958                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3959         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
3960                 /* els xri-sgl shrinked */
3961                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
3962                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3963                                 "3158 ELS xri-sgl count decreased from "
3964                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
3965                                 els_xri_cnt);
3966                 spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
3967                 list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list,
3968                                  &els_sgl_list);
3969                 /* release extra els sgls from list */
3970                 for (i = 0; i < xri_cnt; i++) {
3971                         list_remove_head(&els_sgl_list,
3972                                          sglq_entry, struct lpfc_sglq, list);
3973                         if (sglq_entry) {
3974                                 __lpfc_mbuf_free(phba, sglq_entry->virt,
3975                                                  sglq_entry->phys);
3976                                 kfree(sglq_entry);
3977                         }
3978                 }
3979                 list_splice_init(&els_sgl_list,
3980                                  &phba->sli4_hba.lpfc_els_sgl_list);
3981                 spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
3982         } else
3983                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3984                                 "3163 ELS xri-sgl count unchanged: %d\n",
3985                                 els_xri_cnt);
3986         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
3987
3988         /* update xris to els sgls on the list */
3989         sglq_entry = NULL;
3990         sglq_entry_next = NULL;
3991         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
3992                                  &phba->sli4_hba.lpfc_els_sgl_list, list) {
3993                 lxri = lpfc_sli4_next_xritag(phba);
3994                 if (lxri == NO_XRI) {
3995                         lpfc_printf_log(phba, KERN_ERR,
3996                                         LOG_TRACE_EVENT,
3997                                         "2400 Failed to allocate xri for "
3998                                         "ELS sgl\n");
3999                         rc = -ENOMEM;
4000                         goto out_free_mem;
4001                 }
4002                 sglq_entry->sli4_lxritag = lxri;
4003                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4004         }
4005         return 0;
4006
4007 out_free_mem:
4008         lpfc_free_els_sgl_list(phba);
4009         return rc;
4010 }
4011
4012 /**
4013  * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping
4014  * @phba: pointer to lpfc hba data structure.
4015  *
4016  * This routine first calculates the sizes of the current els and allocated
4017  * scsi sgl lists, and then goes through all sgls to updates the physical
4018  * XRIs assigned due to port function reset. During port initialization, the
4019  * current els and allocated scsi sgl lists are 0s.
4020  *
4021  * Return codes
4022  *   0 - successful (for now, it always returns 0)
4023  **/
4024 int
4025 lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba)
4026 {
4027         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
4028         uint16_t i, lxri, xri_cnt, els_xri_cnt;
4029         uint16_t nvmet_xri_cnt;
4030         LIST_HEAD(nvmet_sgl_list);
4031         int rc;
4032
4033         /*
4034          * update on pci function's nvmet xri-sgl list
4035          */
4036         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4037
4038         /* For NVMET, ALL remaining XRIs are dedicated for IO processing */
4039         nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4040         if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) {
4041                 /* els xri-sgl expanded */
4042                 xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt;
4043                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4044                                 "6302 NVMET xri-sgl cnt grew from %d to %d\n",
4045                                 phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt);
4046                 /* allocate the additional nvmet sgls */
4047                 for (i = 0; i < xri_cnt; i++) {
4048                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
4049                                              GFP_KERNEL);
4050                         if (sglq_entry == NULL) {
4051                                 lpfc_printf_log(phba, KERN_ERR,
4052                                                 LOG_TRACE_EVENT,
4053                                                 "6303 Failure to allocate an "
4054                                                 "NVMET sgl entry:%d\n", i);
4055                                 rc = -ENOMEM;
4056                                 goto out_free_mem;
4057                         }
4058                         sglq_entry->buff_type = NVMET_BUFF_TYPE;
4059                         sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0,
4060                                                            &sglq_entry->phys);
4061                         if (sglq_entry->virt == NULL) {
4062                                 kfree(sglq_entry);
4063                                 lpfc_printf_log(phba, KERN_ERR,
4064                                                 LOG_TRACE_EVENT,
4065                                                 "6304 Failure to allocate an "
4066                                                 "NVMET buf:%d\n", i);
4067                                 rc = -ENOMEM;
4068                                 goto out_free_mem;
4069                         }
4070                         sglq_entry->sgl = sglq_entry->virt;
4071                         memset(sglq_entry->sgl, 0,
4072                                phba->cfg_sg_dma_buf_size);
4073                         sglq_entry->state = SGL_FREED;
4074                         list_add_tail(&sglq_entry->list, &nvmet_sgl_list);
4075                 }
4076                 spin_lock_irq(&phba->hbalock);
4077                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4078                 list_splice_init(&nvmet_sgl_list,
4079                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4080                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4081                 spin_unlock_irq(&phba->hbalock);
4082         } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) {
4083                 /* nvmet xri-sgl shrunk */
4084                 xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt;
4085                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4086                                 "6305 NVMET xri-sgl count decreased from "
4087                                 "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt,
4088                                 nvmet_xri_cnt);
4089                 spin_lock_irq(&phba->hbalock);
4090                 spin_lock(&phba->sli4_hba.sgl_list_lock);
4091                 list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list,
4092                                  &nvmet_sgl_list);
4093                 /* release extra nvmet sgls from list */
4094                 for (i = 0; i < xri_cnt; i++) {
4095                         list_remove_head(&nvmet_sgl_list,
4096                                          sglq_entry, struct lpfc_sglq, list);
4097                         if (sglq_entry) {
4098                                 lpfc_nvmet_buf_free(phba, sglq_entry->virt,
4099                                                     sglq_entry->phys);
4100                                 kfree(sglq_entry);
4101                         }
4102                 }
4103                 list_splice_init(&nvmet_sgl_list,
4104                                  &phba->sli4_hba.lpfc_nvmet_sgl_list);
4105                 spin_unlock(&phba->sli4_hba.sgl_list_lock);
4106                 spin_unlock_irq(&phba->hbalock);
4107         } else
4108                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4109                                 "6306 NVMET xri-sgl count unchanged: %d\n",
4110                                 nvmet_xri_cnt);
4111         phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt;
4112
4113         /* update xris to nvmet sgls on the list */
4114         sglq_entry = NULL;
4115         sglq_entry_next = NULL;
4116         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
4117                                  &phba->sli4_hba.lpfc_nvmet_sgl_list, list) {
4118                 lxri = lpfc_sli4_next_xritag(phba);
4119                 if (lxri == NO_XRI) {
4120                         lpfc_printf_log(phba, KERN_ERR,
4121                                         LOG_TRACE_EVENT,
4122                                         "6307 Failed to allocate xri for "
4123                                         "NVMET sgl\n");
4124                         rc = -ENOMEM;
4125                         goto out_free_mem;
4126                 }
4127                 sglq_entry->sli4_lxritag = lxri;
4128                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4129         }
4130         return 0;
4131
4132 out_free_mem:
4133         lpfc_free_nvmet_sgl_list(phba);
4134         return rc;
4135 }
4136
4137 int
4138 lpfc_io_buf_flush(struct lpfc_hba *phba, struct list_head *cbuf)
4139 {
4140         LIST_HEAD(blist);
4141         struct lpfc_sli4_hdw_queue *qp;
4142         struct lpfc_io_buf *lpfc_cmd;
4143         struct lpfc_io_buf *iobufp, *prev_iobufp;
4144         int idx, cnt, xri, inserted;
4145
4146         cnt = 0;
4147         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4148                 qp = &phba->sli4_hba.hdwq[idx];
4149                 spin_lock_irq(&qp->io_buf_list_get_lock);
4150                 spin_lock(&qp->io_buf_list_put_lock);
4151
4152                 /* Take everything off the get and put lists */
4153                 list_splice_init(&qp->lpfc_io_buf_list_get, &blist);
4154                 list_splice(&qp->lpfc_io_buf_list_put, &blist);
4155                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
4156                 INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
4157                 cnt += qp->get_io_bufs + qp->put_io_bufs;
4158                 qp->get_io_bufs = 0;
4159                 qp->put_io_bufs = 0;
4160                 qp->total_io_bufs = 0;
4161                 spin_unlock(&qp->io_buf_list_put_lock);
4162                 spin_unlock_irq(&qp->io_buf_list_get_lock);
4163         }
4164
4165         /*
4166          * Take IO buffers off blist and put on cbuf sorted by XRI.
4167          * This is because POST_SGL takes a sequential range of XRIs
4168          * to post to the firmware.
4169          */
4170         for (idx = 0; idx < cnt; idx++) {
4171                 list_remove_head(&blist, lpfc_cmd, struct lpfc_io_buf, list);
4172                 if (!lpfc_cmd)
4173                         return cnt;
4174                 if (idx == 0) {
4175                         list_add_tail(&lpfc_cmd->list, cbuf);
4176                         continue;
4177                 }
4178                 xri = lpfc_cmd->cur_iocbq.sli4_xritag;
4179                 inserted = 0;
4180                 prev_iobufp = NULL;
4181                 list_for_each_entry(iobufp, cbuf, list) {
4182                         if (xri < iobufp->cur_iocbq.sli4_xritag) {
4183                                 if (prev_iobufp)
4184                                         list_add(&lpfc_cmd->list,
4185                                                  &prev_iobufp->list);
4186                                 else
4187                                         list_add(&lpfc_cmd->list, cbuf);
4188                                 inserted = 1;
4189                                 break;
4190                         }
4191                         prev_iobufp = iobufp;
4192                 }
4193                 if (!inserted)
4194                         list_add_tail(&lpfc_cmd->list, cbuf);
4195         }
4196         return cnt;
4197 }
4198
4199 int
4200 lpfc_io_buf_replenish(struct lpfc_hba *phba, struct list_head *cbuf)
4201 {
4202         struct lpfc_sli4_hdw_queue *qp;
4203         struct lpfc_io_buf *lpfc_cmd;
4204         int idx, cnt;
4205
4206         qp = phba->sli4_hba.hdwq;
4207         cnt = 0;
4208         while (!list_empty(cbuf)) {
4209                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
4210                         list_remove_head(cbuf, lpfc_cmd,
4211                                          struct lpfc_io_buf, list);
4212                         if (!lpfc_cmd)
4213                                 return cnt;
4214                         cnt++;
4215                         qp = &phba->sli4_hba.hdwq[idx];
4216                         lpfc_cmd->hdwq_no = idx;
4217                         lpfc_cmd->hdwq = qp;
4218                         lpfc_cmd->cur_iocbq.cmd_cmpl = NULL;
4219                         spin_lock(&qp->io_buf_list_put_lock);
4220                         list_add_tail(&lpfc_cmd->list,
4221                                       &qp->lpfc_io_buf_list_put);
4222                         qp->put_io_bufs++;
4223                         qp->total_io_bufs++;
4224                         spin_unlock(&qp->io_buf_list_put_lock);
4225                 }
4226         }
4227         return cnt;
4228 }
4229
4230 /**
4231  * lpfc_sli4_io_sgl_update - update xri-sgl sizing and mapping
4232  * @phba: pointer to lpfc hba data structure.
4233  *
4234  * This routine first calculates the sizes of the current els and allocated
4235  * scsi sgl lists, and then goes through all sgls to updates the physical
4236  * XRIs assigned due to port function reset. During port initialization, the
4237  * current els and allocated scsi sgl lists are 0s.
4238  *
4239  * Return codes
4240  *   0 - successful (for now, it always returns 0)
4241  **/
4242 int
4243 lpfc_sli4_io_sgl_update(struct lpfc_hba *phba)
4244 {
4245         struct lpfc_io_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL;
4246         uint16_t i, lxri, els_xri_cnt;
4247         uint16_t io_xri_cnt, io_xri_max;
4248         LIST_HEAD(io_sgl_list);
4249         int rc, cnt;
4250
4251         /*
4252          * update on pci function's allocated nvme xri-sgl list
4253          */
4254
4255         /* maximum number of xris available for nvme buffers */
4256         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4257         io_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4258         phba->sli4_hba.io_xri_max = io_xri_max;
4259
4260         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4261                         "6074 Current allocated XRI sgl count:%d, "
4262                         "maximum XRI count:%d\n",
4263                         phba->sli4_hba.io_xri_cnt,
4264                         phba->sli4_hba.io_xri_max);
4265
4266         cnt = lpfc_io_buf_flush(phba, &io_sgl_list);
4267
4268         if (phba->sli4_hba.io_xri_cnt > phba->sli4_hba.io_xri_max) {
4269                 /* max nvme xri shrunk below the allocated nvme buffers */
4270                 io_xri_cnt = phba->sli4_hba.io_xri_cnt -
4271                                         phba->sli4_hba.io_xri_max;
4272                 /* release the extra allocated nvme buffers */
4273                 for (i = 0; i < io_xri_cnt; i++) {
4274                         list_remove_head(&io_sgl_list, lpfc_ncmd,
4275                                          struct lpfc_io_buf, list);
4276                         if (lpfc_ncmd) {
4277                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4278                                               lpfc_ncmd->data,
4279                                               lpfc_ncmd->dma_handle);
4280                                 kfree(lpfc_ncmd);
4281                         }
4282                 }
4283                 phba->sli4_hba.io_xri_cnt -= io_xri_cnt;
4284         }
4285
4286         /* update xris associated to remaining allocated nvme buffers */
4287         lpfc_ncmd = NULL;
4288         lpfc_ncmd_next = NULL;
4289         phba->sli4_hba.io_xri_cnt = cnt;
4290         list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next,
4291                                  &io_sgl_list, list) {
4292                 lxri = lpfc_sli4_next_xritag(phba);
4293                 if (lxri == NO_XRI) {
4294                         lpfc_printf_log(phba, KERN_ERR,
4295                                         LOG_TRACE_EVENT,
4296                                         "6075 Failed to allocate xri for "
4297                                         "nvme buffer\n");
4298                         rc = -ENOMEM;
4299                         goto out_free_mem;
4300                 }
4301                 lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri;
4302                 lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4303         }
4304         cnt = lpfc_io_buf_replenish(phba, &io_sgl_list);
4305         return 0;
4306
4307 out_free_mem:
4308         lpfc_io_free(phba);
4309         return rc;
4310 }
4311
4312 /**
4313  * lpfc_new_io_buf - IO buffer allocator for HBA with SLI4 IF spec
4314  * @phba: Pointer to lpfc hba data structure.
4315  * @num_to_alloc: The requested number of buffers to allocate.
4316  *
4317  * This routine allocates nvme buffers for device with SLI-4 interface spec,
4318  * the nvme buffer contains all the necessary information needed to initiate
4319  * an I/O. After allocating up to @num_to_allocate IO buffers and put
4320  * them on a list, it post them to the port by using SGL block post.
4321  *
4322  * Return codes:
4323  *   int - number of IO buffers that were allocated and posted.
4324  *   0 = failure, less than num_to_alloc is a partial failure.
4325  **/
4326 int
4327 lpfc_new_io_buf(struct lpfc_hba *phba, int num_to_alloc)
4328 {
4329         struct lpfc_io_buf *lpfc_ncmd;
4330         struct lpfc_iocbq *pwqeq;
4331         uint16_t iotag, lxri = 0;
4332         int bcnt, num_posted;
4333         LIST_HEAD(prep_nblist);
4334         LIST_HEAD(post_nblist);
4335         LIST_HEAD(nvme_nblist);
4336
4337         phba->sli4_hba.io_xri_cnt = 0;
4338         for (bcnt = 0; bcnt < num_to_alloc; bcnt++) {
4339                 lpfc_ncmd = kzalloc(sizeof(*lpfc_ncmd), GFP_KERNEL);
4340                 if (!lpfc_ncmd)
4341                         break;
4342                 /*
4343                  * Get memory from the pci pool to map the virt space to
4344                  * pci bus space for an I/O. The DMA buffer includes the
4345                  * number of SGE's necessary to support the sg_tablesize.
4346                  */
4347                 lpfc_ncmd->data = dma_pool_zalloc(phba->lpfc_sg_dma_buf_pool,
4348                                                   GFP_KERNEL,
4349                                                   &lpfc_ncmd->dma_handle);
4350                 if (!lpfc_ncmd->data) {
4351                         kfree(lpfc_ncmd);
4352                         break;
4353                 }
4354
4355                 if (phba->cfg_xpsgl && !phba->nvmet_support) {
4356                         INIT_LIST_HEAD(&lpfc_ncmd->dma_sgl_xtra_list);
4357                 } else {
4358                         /*
4359                          * 4K Page alignment is CRITICAL to BlockGuard, double
4360                          * check to be sure.
4361                          */
4362                         if ((phba->sli3_options & LPFC_SLI3_BG_ENABLED) &&
4363                             (((unsigned long)(lpfc_ncmd->data) &
4364                             (unsigned long)(SLI4_PAGE_SIZE - 1)) != 0)) {
4365                                 lpfc_printf_log(phba, KERN_ERR,
4366                                                 LOG_TRACE_EVENT,
4367                                                 "3369 Memory alignment err: "
4368                                                 "addr=%lx\n",
4369                                                 (unsigned long)lpfc_ncmd->data);
4370                                 dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4371                                               lpfc_ncmd->data,
4372                                               lpfc_ncmd->dma_handle);
4373                                 kfree(lpfc_ncmd);
4374                                 break;
4375                         }
4376                 }
4377
4378                 INIT_LIST_HEAD(&lpfc_ncmd->dma_cmd_rsp_list);
4379
4380                 lxri = lpfc_sli4_next_xritag(phba);
4381                 if (lxri == NO_XRI) {
4382                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4383                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4384                         kfree(lpfc_ncmd);
4385                         break;
4386                 }
4387                 pwqeq = &lpfc_ncmd->cur_iocbq;
4388
4389                 /* Allocate iotag for lpfc_ncmd->cur_iocbq. */
4390                 iotag = lpfc_sli_next_iotag(phba, pwqeq);
4391                 if (iotag == 0) {
4392                         dma_pool_free(phba->lpfc_sg_dma_buf_pool,
4393                                       lpfc_ncmd->data, lpfc_ncmd->dma_handle);
4394                         kfree(lpfc_ncmd);
4395                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4396                                         "6121 Failed to allocate IOTAG for"
4397                                         " XRI:0x%x\n", lxri);
4398                         lpfc_sli4_free_xri(phba, lxri);
4399                         break;
4400                 }
4401                 pwqeq->sli4_lxritag = lxri;
4402                 pwqeq->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
4403                 pwqeq->context1 = lpfc_ncmd;
4404
4405                 /* Initialize local short-hand pointers. */
4406                 lpfc_ncmd->dma_sgl = lpfc_ncmd->data;
4407                 lpfc_ncmd->dma_phys_sgl = lpfc_ncmd->dma_handle;
4408                 lpfc_ncmd->cur_iocbq.context1 = lpfc_ncmd;
4409                 spin_lock_init(&lpfc_ncmd->buf_lock);
4410
4411                 /* add the nvme buffer to a post list */
4412                 list_add_tail(&lpfc_ncmd->list, &post_nblist);
4413                 phba->sli4_hba.io_xri_cnt++;
4414         }
4415         lpfc_printf_log(phba, KERN_INFO, LOG_NVME,
4416                         "6114 Allocate %d out of %d requested new NVME "
4417                         "buffers\n", bcnt, num_to_alloc);
4418
4419         /* post the list of nvme buffer sgls to port if available */
4420         if (!list_empty(&post_nblist))
4421                 num_posted = lpfc_sli4_post_io_sgl_list(
4422                                 phba, &post_nblist, bcnt);
4423         else
4424                 num_posted = 0;
4425
4426         return num_posted;
4427 }
4428
4429 static uint64_t
4430 lpfc_get_wwpn(struct lpfc_hba *phba)
4431 {
4432         uint64_t wwn;
4433         int rc;
4434         LPFC_MBOXQ_t *mboxq;
4435         MAILBOX_t *mb;
4436
4437         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4438                                                 GFP_KERNEL);
4439         if (!mboxq)
4440                 return (uint64_t)-1;
4441
4442         /* First get WWN of HBA instance */
4443         lpfc_read_nv(phba, mboxq);
4444         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4445         if (rc != MBX_SUCCESS) {
4446                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
4447                                 "6019 Mailbox failed , mbxCmd x%x "
4448                                 "READ_NV, mbxStatus x%x\n",
4449                                 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4450                                 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
4451                 mempool_free(mboxq, phba->mbox_mem_pool);
4452                 return (uint64_t) -1;
4453         }
4454         mb = &mboxq->u.mb;
4455         memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t));
4456         /* wwn is WWPN of HBA instance */
4457         mempool_free(mboxq, phba->mbox_mem_pool);
4458         if (phba->sli_rev == LPFC_SLI_REV4)
4459                 return be64_to_cpu(wwn);
4460         else
4461                 return rol64(wwn, 32);
4462 }
4463
4464 /**
4465  * lpfc_vmid_res_alloc - Allocates resources for VMID
4466  * @phba: pointer to lpfc hba data structure.
4467  * @vport: pointer to vport data structure
4468  *
4469  * This routine allocated the resources needed for the VMID.
4470  *
4471  * Return codes
4472  *      0 on Success
4473  *      Non-0 on Failure
4474  */
4475 static int
4476 lpfc_vmid_res_alloc(struct lpfc_hba *phba, struct lpfc_vport *vport)
4477 {
4478         /* VMID feature is supported only on SLI4 */
4479         if (phba->sli_rev == LPFC_SLI_REV3) {
4480                 phba->cfg_vmid_app_header = 0;
4481                 phba->cfg_vmid_priority_tagging = 0;
4482         }
4483
4484         if (lpfc_is_vmid_enabled(phba)) {
4485                 vport->vmid =
4486                     kcalloc(phba->cfg_max_vmid, sizeof(struct lpfc_vmid),
4487                             GFP_KERNEL);
4488                 if (!vport->vmid)
4489                         return -ENOMEM;
4490
4491                 rwlock_init(&vport->vmid_lock);
4492
4493                 /* Set the VMID parameters for the vport */
4494                 vport->vmid_priority_tagging = phba->cfg_vmid_priority_tagging;
4495                 vport->vmid_inactivity_timeout =
4496                     phba->cfg_vmid_inactivity_timeout;
4497                 vport->max_vmid = phba->cfg_max_vmid;
4498                 vport->cur_vmid_cnt = 0;
4499
4500                 vport->vmid_priority_range = bitmap_zalloc
4501                         (LPFC_VMID_MAX_PRIORITY_RANGE, GFP_KERNEL);
4502
4503                 if (!vport->vmid_priority_range) {
4504                         kfree(vport->vmid);
4505                         return -ENOMEM;
4506                 }
4507
4508                 hash_init(vport->hash_table);
4509         }
4510         return 0;
4511 }
4512
4513 /**
4514  * lpfc_create_port - Create an FC port
4515  * @phba: pointer to lpfc hba data structure.
4516  * @instance: a unique integer ID to this FC port.
4517  * @dev: pointer to the device data structure.
4518  *
4519  * This routine creates a FC port for the upper layer protocol. The FC port
4520  * can be created on top of either a physical port or a virtual port provided
4521  * by the HBA. This routine also allocates a SCSI host data structure (shost)
4522  * and associates the FC port created before adding the shost into the SCSI
4523  * layer.
4524  *
4525  * Return codes
4526  *   @vport - pointer to the virtual N_Port data structure.
4527  *   NULL - port create failed.
4528  **/
4529 struct lpfc_vport *
4530 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
4531 {
4532         struct lpfc_vport *vport;
4533         struct Scsi_Host  *shost = NULL;
4534         struct scsi_host_template *template;
4535         int error = 0;
4536         int i;
4537         uint64_t wwn;
4538         bool use_no_reset_hba = false;
4539         int rc;
4540
4541         if (lpfc_no_hba_reset_cnt) {
4542                 if (phba->sli_rev < LPFC_SLI_REV4 &&
4543                     dev == &phba->pcidev->dev) {
4544                         /* Reset the port first */
4545                         lpfc_sli_brdrestart(phba);
4546                         rc = lpfc_sli_chipset_init(phba);
4547                         if (rc)
4548                                 return NULL;
4549                 }
4550                 wwn = lpfc_get_wwpn(phba);
4551         }
4552
4553         for (i = 0; i < lpfc_no_hba_reset_cnt; i++) {
4554                 if (wwn == lpfc_no_hba_reset[i]) {
4555                         lpfc_printf_log(phba, KERN_ERR,
4556                                         LOG_TRACE_EVENT,
4557                                         "6020 Setting use_no_reset port=%llx\n",
4558                                         wwn);
4559                         use_no_reset_hba = true;
4560                         break;
4561                 }
4562         }
4563
4564         /* Seed template for SCSI host registration */
4565         if (dev == &phba->pcidev->dev) {
4566                 template = &phba->port_template;
4567
4568                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
4569                         /* Seed physical port template */
4570                         memcpy(template, &lpfc_template, sizeof(*template));
4571
4572                         if (use_no_reset_hba)
4573                                 /* template is for a no reset SCSI Host */
4574                                 template->eh_host_reset_handler = NULL;
4575
4576                         /* Template for all vports this physical port creates */
4577                         memcpy(&phba->vport_template, &lpfc_template,
4578                                sizeof(*template));
4579                         phba->vport_template.shost_attrs = lpfc_vport_attrs;
4580                         phba->vport_template.eh_bus_reset_handler = NULL;
4581                         phba->vport_template.eh_host_reset_handler = NULL;
4582                         phba->vport_template.vendor_id = 0;
4583
4584                         /* Initialize the host templates with updated value */
4585                         if (phba->sli_rev == LPFC_SLI_REV4) {
4586                                 template->sg_tablesize = phba->cfg_scsi_seg_cnt;
4587                                 phba->vport_template.sg_tablesize =
4588                                         phba->cfg_scsi_seg_cnt;
4589                         } else {
4590                                 template->sg_tablesize = phba->cfg_sg_seg_cnt;
4591                                 phba->vport_template.sg_tablesize =
4592                                         phba->cfg_sg_seg_cnt;
4593                         }
4594
4595                 } else {
4596                         /* NVMET is for physical port only */
4597                         memcpy(template, &lpfc_template_nvme,
4598                                sizeof(*template));
4599                 }
4600         } else {
4601                 template = &phba->vport_template;
4602         }
4603
4604         shost = scsi_host_alloc(template, sizeof(struct lpfc_vport));
4605         if (!shost)
4606                 goto out;
4607
4608         vport = (struct lpfc_vport *) shost->hostdata;
4609         vport->phba = phba;
4610         vport->load_flag |= FC_LOADING;
4611         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
4612         vport->fc_rscn_flush = 0;
4613         lpfc_get_vport_cfgparam(vport);
4614
4615         /* Adjust value in vport */
4616         vport->cfg_enable_fc4_type = phba->cfg_enable_fc4_type;
4617
4618         shost->unique_id = instance;
4619         shost->max_id = LPFC_MAX_TARGET;
4620         shost->max_lun = vport->cfg_max_luns;
4621         shost->this_id = -1;
4622         shost->max_cmd_len = 16;
4623
4624         if (phba->sli_rev == LPFC_SLI_REV4) {
4625                 if (!phba->cfg_fcp_mq_threshold ||
4626                     phba->cfg_fcp_mq_threshold > phba->cfg_hdw_queue)
4627                         phba->cfg_fcp_mq_threshold = phba->cfg_hdw_queue;
4628
4629                 shost->nr_hw_queues = min_t(int, 2 * num_possible_nodes(),
4630                                             phba->cfg_fcp_mq_threshold);
4631
4632                 shost->dma_boundary =
4633                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
4634
4635                 if (phba->cfg_xpsgl && !phba->nvmet_support)
4636                         shost->sg_tablesize = LPFC_MAX_SG_TABLESIZE;
4637                 else
4638                         shost->sg_tablesize = phba->cfg_scsi_seg_cnt;
4639         } else
4640                 /* SLI-3 has a limited number of hardware queues (3),
4641                  * thus there is only one for FCP processing.
4642                  */
4643                 shost->nr_hw_queues = 1;
4644
4645         /*
4646          * Set initial can_queue value since 0 is no longer supported and
4647          * scsi_add_host will fail. This will be adjusted later based on the
4648          * max xri value determined in hba setup.
4649          */
4650         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4651         if (dev != &phba->pcidev->dev) {
4652                 shost->transportt = lpfc_vport_transport_template;
4653                 vport->port_type = LPFC_NPIV_PORT;
4654         } else {
4655                 shost->transportt = lpfc_transport_template;
4656                 vport->port_type = LPFC_PHYSICAL_PORT;
4657         }
4658
4659         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
4660                         "9081 CreatePort TMPLATE type %x TBLsize %d "
4661                         "SEGcnt %d/%d\n",
4662                         vport->port_type, shost->sg_tablesize,
4663                         phba->cfg_scsi_seg_cnt, phba->cfg_sg_seg_cnt);
4664
4665         /* Allocate the resources for VMID */
4666         rc = lpfc_vmid_res_alloc(phba, vport);
4667
4668         if (rc)
4669                 goto out_put_shost;
4670
4671         /* Initialize all internally managed lists. */
4672         INIT_LIST_HEAD(&vport->fc_nodes);
4673         INIT_LIST_HEAD(&vport->rcv_buffer_list);
4674         spin_lock_init(&vport->work_port_lock);
4675
4676         timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
4677
4678         timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
4679
4680         timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
4681
4682         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4683                 lpfc_setup_bg(phba, shost);
4684
4685         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
4686         if (error)
4687                 goto out_free_vmid;
4688
4689         spin_lock_irq(&phba->port_list_lock);
4690         list_add_tail(&vport->listentry, &phba->port_list);
4691         spin_unlock_irq(&phba->port_list_lock);
4692         return vport;
4693
4694 out_free_vmid:
4695         kfree(vport->vmid);
4696         bitmap_free(vport->vmid_priority_range);
4697 out_put_shost:
4698         scsi_host_put(shost);
4699 out:
4700         return NULL;
4701 }
4702
4703 /**
4704  * destroy_port -  destroy an FC port
4705  * @vport: pointer to an lpfc virtual N_Port data structure.
4706  *
4707  * This routine destroys a FC port from the upper layer protocol. All the
4708  * resources associated with the port are released.
4709  **/
4710 void
4711 destroy_port(struct lpfc_vport *vport)
4712 {
4713         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
4714         struct lpfc_hba  *phba = vport->phba;
4715
4716         lpfc_debugfs_terminate(vport);
4717         fc_remove_host(shost);
4718         scsi_remove_host(shost);
4719
4720         spin_lock_irq(&phba->port_list_lock);
4721         list_del_init(&vport->listentry);
4722         spin_unlock_irq(&phba->port_list_lock);
4723
4724         lpfc_cleanup(vport);
4725         return;
4726 }
4727
4728 /**
4729  * lpfc_get_instance - Get a unique integer ID
4730  *
4731  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
4732  * uses the kernel idr facility to perform the task.
4733  *
4734  * Return codes:
4735  *   instance - a unique integer ID allocated as the new instance.
4736  *   -1 - lpfc get instance failed.
4737  **/
4738 int
4739 lpfc_get_instance(void)
4740 {
4741         int ret;
4742
4743         ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL);
4744         return ret < 0 ? -1 : ret;
4745 }
4746
4747 /**
4748  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
4749  * @shost: pointer to SCSI host data structure.
4750  * @time: elapsed time of the scan in jiffies.
4751  *
4752  * This routine is called by the SCSI layer with a SCSI host to determine
4753  * whether the scan host is finished.
4754  *
4755  * Note: there is no scan_start function as adapter initialization will have
4756  * asynchronously kicked off the link initialization.
4757  *
4758  * Return codes
4759  *   0 - SCSI host scan is not over yet.
4760  *   1 - SCSI host scan is over.
4761  **/
4762 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
4763 {
4764         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4765         struct lpfc_hba   *phba = vport->phba;
4766         int stat = 0;
4767
4768         spin_lock_irq(shost->host_lock);
4769
4770         if (vport->load_flag & FC_UNLOADING) {
4771                 stat = 1;
4772                 goto finished;
4773         }
4774         if (time >= msecs_to_jiffies(30 * 1000)) {
4775                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4776                                 "0461 Scanning longer than 30 "
4777                                 "seconds.  Continuing initialization\n");
4778                 stat = 1;
4779                 goto finished;
4780         }
4781         if (time >= msecs_to_jiffies(15 * 1000) &&
4782             phba->link_state <= LPFC_LINK_DOWN) {
4783                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4784                                 "0465 Link down longer than 15 "
4785                                 "seconds.  Continuing initialization\n");
4786                 stat = 1;
4787                 goto finished;
4788         }
4789
4790         if (vport->port_state != LPFC_VPORT_READY)
4791                 goto finished;
4792         if (vport->num_disc_nodes || vport->fc_prli_sent)
4793                 goto finished;
4794         if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000))
4795                 goto finished;
4796         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
4797                 goto finished;
4798
4799         stat = 1;
4800
4801 finished:
4802         spin_unlock_irq(shost->host_lock);
4803         return stat;
4804 }
4805
4806 static void lpfc_host_supported_speeds_set(struct Scsi_Host *shost)
4807 {
4808         struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
4809         struct lpfc_hba   *phba = vport->phba;
4810
4811         fc_host_supported_speeds(shost) = 0;
4812         /*
4813          * Avoid reporting supported link speed for FCoE as it can't be
4814          * controlled via FCoE.
4815          */
4816         if (phba->hba_flag & HBA_FCOE_MODE)
4817                 return;
4818
4819         if (phba->lmt & LMT_256Gb)
4820                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_256GBIT;
4821         if (phba->lmt & LMT_128Gb)
4822                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_128GBIT;
4823         if (phba->lmt & LMT_64Gb)
4824                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT;
4825         if (phba->lmt & LMT_32Gb)
4826                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT;
4827         if (phba->lmt & LMT_16Gb)
4828                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
4829         if (phba->lmt & LMT_10Gb)
4830                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
4831         if (phba->lmt & LMT_8Gb)
4832                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
4833         if (phba->lmt & LMT_4Gb)
4834                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
4835         if (phba->lmt & LMT_2Gb)
4836                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
4837         if (phba->lmt & LMT_1Gb)
4838                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
4839 }
4840
4841 /**
4842  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
4843  * @shost: pointer to SCSI host data structure.
4844  *
4845  * This routine initializes a given SCSI host attributes on a FC port. The
4846  * SCSI host can be either on top of a physical port or a virtual port.
4847  **/
4848 void lpfc_host_attrib_init(struct Scsi_Host *shost)
4849 {
4850         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
4851         struct lpfc_hba   *phba = vport->phba;
4852         /*
4853          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
4854          */
4855
4856         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4857         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4858         fc_host_supported_classes(shost) = FC_COS_CLASS3;
4859
4860         memset(fc_host_supported_fc4s(shost), 0,
4861                sizeof(fc_host_supported_fc4s(shost)));
4862         fc_host_supported_fc4s(shost)[2] = 1;
4863         fc_host_supported_fc4s(shost)[7] = 1;
4864
4865         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
4866                                  sizeof fc_host_symbolic_name(shost));
4867
4868         lpfc_host_supported_speeds_set(shost);
4869
4870         fc_host_maxframe_size(shost) =
4871                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
4872                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
4873
4874         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
4875
4876         /* This value is also unchanging */
4877         memset(fc_host_active_fc4s(shost), 0,
4878                sizeof(fc_host_active_fc4s(shost)));
4879         fc_host_active_fc4s(shost)[2] = 1;
4880         fc_host_active_fc4s(shost)[7] = 1;
4881
4882         fc_host_max_npiv_vports(shost) = phba->max_vpi;
4883         spin_lock_irq(shost->host_lock);
4884         vport->load_flag &= ~FC_LOADING;
4885         spin_unlock_irq(shost->host_lock);
4886 }
4887
4888 /**
4889  * lpfc_stop_port_s3 - Stop SLI3 device port
4890  * @phba: pointer to lpfc hba data structure.
4891  *
4892  * This routine is invoked to stop an SLI3 device port, it stops the device
4893  * from generating interrupts and stops the device driver's timers for the
4894  * device.
4895  **/
4896 static void
4897 lpfc_stop_port_s3(struct lpfc_hba *phba)
4898 {
4899         /* Clear all interrupt enable conditions */
4900         writel(0, phba->HCregaddr);
4901         readl(phba->HCregaddr); /* flush */
4902         /* Clear all pending interrupts */
4903         writel(0xffffffff, phba->HAregaddr);
4904         readl(phba->HAregaddr); /* flush */
4905
4906         /* Reset some HBA SLI setup states */
4907         lpfc_stop_hba_timers(phba);
4908         phba->pport->work_port_events = 0;
4909 }
4910
4911 /**
4912  * lpfc_stop_port_s4 - Stop SLI4 device port
4913  * @phba: pointer to lpfc hba data structure.
4914  *
4915  * This routine is invoked to stop an SLI4 device port, it stops the device
4916  * from generating interrupts and stops the device driver's timers for the
4917  * device.
4918  **/
4919 static void
4920 lpfc_stop_port_s4(struct lpfc_hba *phba)
4921 {
4922         /* Reset some HBA SLI4 setup states */
4923         lpfc_stop_hba_timers(phba);
4924         if (phba->pport)
4925                 phba->pport->work_port_events = 0;
4926         phba->sli4_hba.intr_enable = 0;
4927 }
4928
4929 /**
4930  * lpfc_stop_port - Wrapper function for stopping hba port
4931  * @phba: Pointer to HBA context object.
4932  *
4933  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
4934  * the API jump table function pointer from the lpfc_hba struct.
4935  **/
4936 void
4937 lpfc_stop_port(struct lpfc_hba *phba)
4938 {
4939         phba->lpfc_stop_port(phba);
4940
4941         if (phba->wq)
4942                 flush_workqueue(phba->wq);
4943 }
4944
4945 /**
4946  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
4947  * @phba: Pointer to hba for which this call is being executed.
4948  *
4949  * This routine starts the timer waiting for the FCF rediscovery to complete.
4950  **/
4951 void
4952 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
4953 {
4954         unsigned long fcf_redisc_wait_tmo =
4955                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
4956         /* Start fcf rediscovery wait period timer */
4957         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
4958         spin_lock_irq(&phba->hbalock);
4959         /* Allow action to new fcf asynchronous event */
4960         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
4961         /* Mark the FCF rediscovery pending state */
4962         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
4963         spin_unlock_irq(&phba->hbalock);
4964 }
4965
4966 /**
4967  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
4968  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
4969  *
4970  * This routine is invoked when waiting for FCF table rediscover has been
4971  * timed out. If new FCF record(s) has (have) been discovered during the
4972  * wait period, a new FCF event shall be added to the FCOE async event
4973  * list, and then worker thread shall be waked up for processing from the
4974  * worker thread context.
4975  **/
4976 static void
4977 lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
4978 {
4979         struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
4980
4981         /* Don't send FCF rediscovery event if timer cancelled */
4982         spin_lock_irq(&phba->hbalock);
4983         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
4984                 spin_unlock_irq(&phba->hbalock);
4985                 return;
4986         }
4987         /* Clear FCF rediscovery timer pending flag */
4988         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
4989         /* FCF rediscovery event to worker thread */
4990         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
4991         spin_unlock_irq(&phba->hbalock);
4992         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
4993                         "2776 FCF rediscover quiescent timer expired\n");
4994         /* wake up worker thread */
4995         lpfc_worker_wake_up(phba);
4996 }
4997
4998 /**
4999  * lpfc_vmid_poll - VMID timeout detection
5000  * @t: Timer context used to obtain the pointer to lpfc hba data structure.
5001  *
5002  * This routine is invoked when there is no I/O on by a VM for the specified
5003  * amount of time. When this situation is detected, the VMID has to be
5004  * deregistered from the switch and all the local resources freed. The VMID
5005  * will be reassigned to the VM once the I/O begins.
5006  **/
5007 static void
5008 lpfc_vmid_poll(struct timer_list *t)
5009 {
5010         struct lpfc_hba *phba = from_timer(phba, t, inactive_vmid_poll);
5011         u32 wake_up = 0;
5012
5013         /* check if there is a need to issue QFPA */
5014         if (phba->pport->vmid_priority_tagging) {
5015                 wake_up = 1;
5016                 phba->pport->work_port_events |= WORKER_CHECK_VMID_ISSUE_QFPA;
5017         }
5018
5019         /* Is the vmid inactivity timer enabled */
5020         if (phba->pport->vmid_inactivity_timeout ||
5021             phba->pport->load_flag & FC_DEREGISTER_ALL_APP_ID) {
5022                 wake_up = 1;
5023                 phba->pport->work_port_events |= WORKER_CHECK_INACTIVE_VMID;
5024         }
5025
5026         if (wake_up)
5027                 lpfc_worker_wake_up(phba);
5028
5029         /* restart the timer for the next iteration */
5030         mod_timer(&phba->inactive_vmid_poll, jiffies + msecs_to_jiffies(1000 *
5031                                                         LPFC_VMID_TIMER));
5032 }
5033
5034 /**
5035  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
5036  * @phba: pointer to lpfc hba data structure.
5037  * @acqe_link: pointer to the async link completion queue entry.
5038  *
5039  * This routine is to parse the SLI4 link-attention link fault code.
5040  **/
5041 static void
5042 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
5043                            struct lpfc_acqe_link *acqe_link)
5044 {
5045         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
5046         case LPFC_ASYNC_LINK_FAULT_NONE:
5047         case LPFC_ASYNC_LINK_FAULT_LOCAL:
5048         case LPFC_ASYNC_LINK_FAULT_REMOTE:
5049         case LPFC_ASYNC_LINK_FAULT_LR_LRR:
5050                 break;
5051         default:
5052                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5053                                 "0398 Unknown link fault code: x%x\n",
5054                                 bf_get(lpfc_acqe_link_fault, acqe_link));
5055                 break;
5056         }
5057 }
5058
5059 /**
5060  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
5061  * @phba: pointer to lpfc hba data structure.
5062  * @acqe_link: pointer to the async link completion queue entry.
5063  *
5064  * This routine is to parse the SLI4 link attention type and translate it
5065  * into the base driver's link attention type coding.
5066  *
5067  * Return: Link attention type in terms of base driver's coding.
5068  **/
5069 static uint8_t
5070 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
5071                           struct lpfc_acqe_link *acqe_link)
5072 {
5073         uint8_t att_type;
5074
5075         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
5076         case LPFC_ASYNC_LINK_STATUS_DOWN:
5077         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
5078                 att_type = LPFC_ATT_LINK_DOWN;
5079                 break;
5080         case LPFC_ASYNC_LINK_STATUS_UP:
5081                 /* Ignore physical link up events - wait for logical link up */
5082                 att_type = LPFC_ATT_RESERVED;
5083                 break;
5084         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
5085                 att_type = LPFC_ATT_LINK_UP;
5086                 break;
5087         default:
5088                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5089                                 "0399 Invalid link attention type: x%x\n",
5090                                 bf_get(lpfc_acqe_link_status, acqe_link));
5091                 att_type = LPFC_ATT_RESERVED;
5092                 break;
5093         }
5094         return att_type;
5095 }
5096
5097 /**
5098  * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed
5099  * @phba: pointer to lpfc hba data structure.
5100  *
5101  * This routine is to get an SLI3 FC port's link speed in Mbps.
5102  *
5103  * Return: link speed in terms of Mbps.
5104  **/
5105 uint32_t
5106 lpfc_sli_port_speed_get(struct lpfc_hba *phba)
5107 {
5108         uint32_t link_speed;
5109
5110         if (!lpfc_is_link_up(phba))
5111                 return 0;
5112
5113         if (phba->sli_rev <= LPFC_SLI_REV3) {
5114                 switch (phba->fc_linkspeed) {
5115                 case LPFC_LINK_SPEED_1GHZ:
5116                         link_speed = 1000;
5117                         break;
5118                 case LPFC_LINK_SPEED_2GHZ:
5119                         link_speed = 2000;
5120                         break;
5121                 case LPFC_LINK_SPEED_4GHZ:
5122                         link_speed = 4000;
5123                         break;
5124                 case LPFC_LINK_SPEED_8GHZ:
5125                         link_speed = 8000;
5126                         break;
5127                 case LPFC_LINK_SPEED_10GHZ:
5128                         link_speed = 10000;
5129                         break;
5130                 case LPFC_LINK_SPEED_16GHZ:
5131                         link_speed = 16000;
5132                         break;
5133                 default:
5134                         link_speed = 0;
5135                 }
5136         } else {
5137                 if (phba->sli4_hba.link_state.logical_speed)
5138                         link_speed =
5139                               phba->sli4_hba.link_state.logical_speed;
5140                 else
5141                         link_speed = phba->sli4_hba.link_state.speed;
5142         }
5143         return link_speed;
5144 }
5145
5146 /**
5147  * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed
5148  * @phba: pointer to lpfc hba data structure.
5149  * @evt_code: asynchronous event code.
5150  * @speed_code: asynchronous event link speed code.
5151  *
5152  * This routine is to parse the giving SLI4 async event link speed code into
5153  * value of Mbps for the link speed.
5154  *
5155  * Return: link speed in terms of Mbps.
5156  **/
5157 static uint32_t
5158 lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code,
5159                            uint8_t speed_code)
5160 {
5161         uint32_t port_speed;
5162
5163         switch (evt_code) {
5164         case LPFC_TRAILER_CODE_LINK:
5165                 switch (speed_code) {
5166                 case LPFC_ASYNC_LINK_SPEED_ZERO:
5167                         port_speed = 0;
5168                         break;
5169                 case LPFC_ASYNC_LINK_SPEED_10MBPS:
5170                         port_speed = 10;
5171                         break;
5172                 case LPFC_ASYNC_LINK_SPEED_100MBPS:
5173                         port_speed = 100;
5174                         break;
5175                 case LPFC_ASYNC_LINK_SPEED_1GBPS:
5176                         port_speed = 1000;
5177                         break;
5178                 case LPFC_ASYNC_LINK_SPEED_10GBPS:
5179                         port_speed = 10000;
5180                         break;
5181                 case LPFC_ASYNC_LINK_SPEED_20GBPS:
5182                         port_speed = 20000;
5183                         break;
5184                 case LPFC_ASYNC_LINK_SPEED_25GBPS:
5185                         port_speed = 25000;
5186                         break;
5187                 case LPFC_ASYNC_LINK_SPEED_40GBPS:
5188                         port_speed = 40000;
5189                         break;
5190                 case LPFC_ASYNC_LINK_SPEED_100GBPS:
5191                         port_speed = 100000;
5192                         break;
5193                 default:
5194                         port_speed = 0;
5195                 }
5196                 break;
5197         case LPFC_TRAILER_CODE_FC:
5198                 switch (speed_code) {
5199                 case LPFC_FC_LA_SPEED_UNKNOWN:
5200                         port_speed = 0;
5201                         break;
5202                 case LPFC_FC_LA_SPEED_1G:
5203                         port_speed = 1000;
5204                         break;
5205                 case LPFC_FC_LA_SPEED_2G:
5206                         port_speed = 2000;
5207                         break;
5208                 case LPFC_FC_LA_SPEED_4G:
5209                         port_speed = 4000;
5210                         break;
5211                 case LPFC_FC_LA_SPEED_8G:
5212                         port_speed = 8000;
5213                         break;
5214                 case LPFC_FC_LA_SPEED_10G:
5215                         port_speed = 10000;
5216                         break;
5217                 case LPFC_FC_LA_SPEED_16G:
5218                         port_speed = 16000;
5219                         break;
5220                 case LPFC_FC_LA_SPEED_32G:
5221                         port_speed = 32000;
5222                         break;
5223                 case LPFC_FC_LA_SPEED_64G:
5224                         port_speed = 64000;
5225                         break;
5226                 case LPFC_FC_LA_SPEED_128G:
5227                         port_speed = 128000;
5228                         break;
5229                 case LPFC_FC_LA_SPEED_256G:
5230                         port_speed = 256000;
5231                         break;
5232                 default:
5233                         port_speed = 0;
5234                 }
5235                 break;
5236         default:
5237                 port_speed = 0;
5238         }
5239         return port_speed;
5240 }
5241
5242 /**
5243  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
5244  * @phba: pointer to lpfc hba data structure.
5245  * @acqe_link: pointer to the async link completion queue entry.
5246  *
5247  * This routine is to handle the SLI4 asynchronous FCoE link event.
5248  **/
5249 static void
5250 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
5251                          struct lpfc_acqe_link *acqe_link)
5252 {
5253         struct lpfc_dmabuf *mp;
5254         LPFC_MBOXQ_t *pmb;
5255         MAILBOX_t *mb;
5256         struct lpfc_mbx_read_top *la;
5257         uint8_t att_type;
5258         int rc;
5259
5260         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
5261         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
5262                 return;
5263         phba->fcoe_eventtag = acqe_link->event_tag;
5264         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5265         if (!pmb) {
5266                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5267                                 "0395 The mboxq allocation failed\n");
5268                 return;
5269         }
5270         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5271         if (!mp) {
5272                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5273                                 "0396 The lpfc_dmabuf allocation failed\n");
5274                 goto out_free_pmb;
5275         }
5276         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
5277         if (!mp->virt) {
5278                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
5279                                 "0397 The mbuf allocation failed\n");
5280                 goto out_free_dmabuf;
5281         }
5282
5283         /* Cleanup any outstanding ELS commands */
5284         lpfc_els_flush_all_cmd(phba);
5285
5286         /* Block ELS IOCBs until we have done process link event */
5287         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
5288
5289         /* Update link event statistics */
5290         phba->sli.slistat.link_event++;
5291
5292         /* Create lpfc_handle_latt mailbox command from link ACQE */
5293         lpfc_read_topology(phba, pmb, mp);
5294         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
5295         pmb->vport = phba->pport;
5296
5297         /* Keep the link status for extra SLI4 state machine reference */
5298         phba->sli4_hba.link_state.speed =
5299                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK,
5300                                 bf_get(lpfc_acqe_link_speed, acqe_link));
5301         phba->sli4_hba.link_state.duplex =
5302                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
5303         phba->sli4_hba.link_state.status =
5304                                 bf_get(lpfc_acqe_link_status, acqe_link);
5305         phba->sli4_hba.link_state.type =
5306                                 bf_get(lpfc_acqe_link_type, acqe_link);
5307         phba->sli4_hba.link_state.number =
5308                                 bf_get(lpfc_acqe_link_number, acqe_link);
5309         phba->sli4_hba.link_state.fault =
5310                                 bf_get(lpfc_acqe_link_fault, acqe_link);
5311         phba->sli4_hba.link_state.logical_speed =
5312                         bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10;
5313
5314         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5315                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
5316                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
5317                         "Logical speed:%dMbps Fault:%d\n",
5318                         phba->sli4_hba.link_state.speed,
5319                         phba->sli4_hba.link_state.topology,
5320                         phba->sli4_hba.link_state.status,
5321                         phba->sli4_hba.link_state.type,
5322                         phba->sli4_hba.link_state.number,
5323                         phba->sli4_hba.link_state.logical_speed,
5324                         phba->sli4_hba.link_state.fault);
5325         /*
5326          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
5327          * topology info. Note: Optional for non FC-AL ports.
5328          */
5329         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
5330                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
5331                 if (rc == MBX_NOT_FINISHED) {
5332                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
5333                         goto out_free_dmabuf;
5334                 }
5335                 return;
5336         }
5337         /*
5338          * For FCoE Mode: fill in all the topology information we need and call
5339          * the READ_TOPOLOGY completion routine to continue without actually
5340          * sending the READ_TOPOLOGY mailbox command to the port.
5341          */
5342         /* Initialize completion status */
5343         mb = &pmb->u.mb;
5344         mb->mbxStatus = MBX_SUCCESS;
5345
5346         /* Parse port fault information field */
5347         lpfc_sli4_parse_latt_fault(phba, acqe_link);
5348
5349         /* Parse and translate link attention fields */
5350         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
5351         la->eventTag = acqe_link->event_tag;
5352         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
5353         bf_set(lpfc_mbx_read_top_link_spd, la,
5354                (bf_get(lpfc_acqe_link_speed, acqe_link)));
5355
5356         /* Fake the the following irrelvant fields */
5357         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
5358         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
5359         bf_set(lpfc_mbx_read_top_il, la, 0);
5360         bf_set(lpfc_mbx_read_top_pb, la, 0);
5361         bf_set(lpfc_mbx_read_top_fa, la, 0);
5362         bf_set(lpfc_mbx_read_top_mm, la, 0);
5363
5364         /* Invoke the lpfc_handle_latt mailbox command callback function */
5365         lpfc_mbx_cmpl_read_topology(phba, pmb);
5366
5367         return;
5368
5369 out_free_dmabuf:
5370         kfree(mp);
5371 out_free_pmb:
5372         mempool_free(pmb, phba->mbox_mem_pool);
5373 }
5374
5375 /**
5376  * lpfc_async_link_speed_to_read_top - Parse async evt link speed code to read
5377  * topology.
5378  * @phba: pointer to lpfc hba data structure.
5379  * @speed_code: asynchronous event link speed code.
5380  *
5381  * This routine is to parse the giving SLI4 async event link speed code into
5382  * value of Read topology link speed.
5383  *
5384  * Return: link speed in terms of Read topology.
5385  **/
5386 static uint8_t
5387 lpfc_async_link_speed_to_read_top(struct lpfc_hba *phba, uint8_t speed_code)
5388 {
5389         uint8_t port_speed;
5390
5391         switch (speed_code) {
5392         case LPFC_FC_LA_SPEED_1G:
5393                 port_speed = LPFC_LINK_SPEED_1GHZ;
5394                 break;
5395         case LPFC_FC_LA_SPEED_2G:
5396                 port_speed = LPFC_LINK_SPEED_2GHZ;
5397                 break;
5398         case LPFC_FC_LA_SPEED_4G:
5399                 port_speed = LPFC_LINK_SPEED_4GHZ;
5400                 break;
5401         case LPFC_FC_LA_SPEED_8G:
5402                 port_speed = LPFC_LINK_SPEED_8GHZ;
5403                 break;
5404         case LPFC_FC_LA_SPEED_16G:
5405                 port_speed = LPFC_LINK_SPEED_16GHZ;
5406                 break;
5407         case LPFC_FC_LA_SPEED_32G:
5408                 port_speed = LPFC_LINK_SPEED_32GHZ;
5409                 break;
5410         case LPFC_FC_LA_SPEED_64G:
5411                 port_speed = LPFC_LINK_SPEED_64GHZ;
5412                 break;
5413         case LPFC_FC_LA_SPEED_128G:
5414                 port_speed = LPFC_LINK_SPEED_128GHZ;
5415                 break;
5416         case LPFC_FC_LA_SPEED_256G:
5417                 port_speed = LPFC_LINK_SPEED_256GHZ;
5418                 break;
5419         default:
5420                 port_speed = 0;
5421                 break;
5422         }
5423
5424         return port_speed;
5425 }
5426
5427 void
5428 lpfc_cgn_dump_rxmonitor(struct lpfc_hba *phba)
5429 {
5430         struct rxtable_entry *entry;
5431         int cnt = 0, head, tail, last, start;
5432
5433         head = atomic_read(&phba->rxtable_idx_head);
5434         tail = atomic_read(&phba->rxtable_idx_tail);
5435         if (!phba->rxtable || head == tail) {
5436                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
5437                                 "4411 Rxtable is empty\n");
5438                 return;
5439         }
5440         last = tail;
5441         start = head;
5442
5443         /* Display the last LPFC_MAX_RXMONITOR_DUMP entries from the rxtable */
5444         while (start != last) {
5445                 if (start)
5446                         start--;
5447                 else
5448                         start = LPFC_MAX_RXMONITOR_ENTRY - 1;
5449                 entry = &phba->rxtable[start];
5450                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5451                                 "4410 %02d: MBPI %lld Xmit %lld Cmpl %lld "
5452                                 "Lat %lld ASz %lld Info %02d BWUtil %d "
5453                                 "Int %d slot %d\n",
5454                                 cnt, entry->max_bytes_per_interval,
5455                                 entry->total_bytes, entry->rcv_bytes,
5456                                 entry->avg_io_latency, entry->avg_io_size,
5457                                 entry->cmf_info, entry->timer_utilization,
5458                                 entry->timer_interval, start);
5459                 cnt++;
5460                 if (cnt >= LPFC_MAX_RXMONITOR_DUMP)
5461                         return;
5462         }
5463 }
5464
5465 /**
5466  * lpfc_cgn_update_stat - Save data into congestion stats buffer
5467  * @phba: pointer to lpfc hba data structure.
5468  * @dtag: FPIN descriptor received
5469  *
5470  * Increment the FPIN received counter/time when it happens.
5471  */
5472 void
5473 lpfc_cgn_update_stat(struct lpfc_hba *phba, uint32_t dtag)
5474 {
5475         struct lpfc_cgn_info *cp;
5476         struct tm broken;
5477         struct timespec64 cur_time;
5478         u32 cnt;
5479         u16 value;
5480
5481         /* Make sure we have a congestion info buffer */
5482         if (!phba->cgn_i)
5483                 return;
5484         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5485         ktime_get_real_ts64(&cur_time);
5486         time64_to_tm(cur_time.tv_sec, 0, &broken);
5487
5488         /* Update congestion statistics */
5489         switch (dtag) {
5490         case ELS_DTAG_LNK_INTEGRITY:
5491                 cnt = le32_to_cpu(cp->link_integ_notification);
5492                 cnt++;
5493                 cp->link_integ_notification = cpu_to_le32(cnt);
5494
5495                 cp->cgn_stat_lnk_month = broken.tm_mon + 1;
5496                 cp->cgn_stat_lnk_day = broken.tm_mday;
5497                 cp->cgn_stat_lnk_year = broken.tm_year - 100;
5498                 cp->cgn_stat_lnk_hour = broken.tm_hour;
5499                 cp->cgn_stat_lnk_min = broken.tm_min;
5500                 cp->cgn_stat_lnk_sec = broken.tm_sec;
5501                 break;
5502         case ELS_DTAG_DELIVERY:
5503                 cnt = le32_to_cpu(cp->delivery_notification);
5504                 cnt++;
5505                 cp->delivery_notification = cpu_to_le32(cnt);
5506
5507                 cp->cgn_stat_del_month = broken.tm_mon + 1;
5508                 cp->cgn_stat_del_day = broken.tm_mday;
5509                 cp->cgn_stat_del_year = broken.tm_year - 100;
5510                 cp->cgn_stat_del_hour = broken.tm_hour;
5511                 cp->cgn_stat_del_min = broken.tm_min;
5512                 cp->cgn_stat_del_sec = broken.tm_sec;
5513                 break;
5514         case ELS_DTAG_PEER_CONGEST:
5515                 cnt = le32_to_cpu(cp->cgn_peer_notification);
5516                 cnt++;
5517                 cp->cgn_peer_notification = cpu_to_le32(cnt);
5518
5519                 cp->cgn_stat_peer_month = broken.tm_mon + 1;
5520                 cp->cgn_stat_peer_day = broken.tm_mday;
5521                 cp->cgn_stat_peer_year = broken.tm_year - 100;
5522                 cp->cgn_stat_peer_hour = broken.tm_hour;
5523                 cp->cgn_stat_peer_min = broken.tm_min;
5524                 cp->cgn_stat_peer_sec = broken.tm_sec;
5525                 break;
5526         case ELS_DTAG_CONGESTION:
5527                 cnt = le32_to_cpu(cp->cgn_notification);
5528                 cnt++;
5529                 cp->cgn_notification = cpu_to_le32(cnt);
5530
5531                 cp->cgn_stat_cgn_month = broken.tm_mon + 1;
5532                 cp->cgn_stat_cgn_day = broken.tm_mday;
5533                 cp->cgn_stat_cgn_year = broken.tm_year - 100;
5534                 cp->cgn_stat_cgn_hour = broken.tm_hour;
5535                 cp->cgn_stat_cgn_min = broken.tm_min;
5536                 cp->cgn_stat_cgn_sec = broken.tm_sec;
5537         }
5538         if (phba->cgn_fpin_frequency &&
5539             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5540                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5541                 cp->cgn_stat_npm = value;
5542         }
5543         value = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5544                                     LPFC_CGN_CRC32_SEED);
5545         cp->cgn_info_crc = cpu_to_le32(value);
5546 }
5547
5548 /**
5549  * lpfc_cgn_save_evt_cnt - Save data into registered congestion buffer
5550  * @phba: pointer to lpfc hba data structure.
5551  *
5552  * Save the congestion event data every minute.
5553  * On the hour collapse all the minute data into hour data. Every day
5554  * collapse all the hour data into daily data. Separate driver
5555  * and fabrc congestion event counters that will be saved out
5556  * to the registered congestion buffer every minute.
5557  */
5558 static void
5559 lpfc_cgn_save_evt_cnt(struct lpfc_hba *phba)
5560 {
5561         struct lpfc_cgn_info *cp;
5562         struct tm broken;
5563         struct timespec64 cur_time;
5564         uint32_t i, index;
5565         uint16_t value, mvalue;
5566         uint64_t bps;
5567         uint32_t mbps;
5568         uint32_t dvalue, wvalue, lvalue, avalue;
5569         uint64_t latsum;
5570         __le16 *ptr;
5571         __le32 *lptr;
5572         __le16 *mptr;
5573
5574         /* Make sure we have a congestion info buffer */
5575         if (!phba->cgn_i)
5576                 return;
5577         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
5578
5579         if (time_before(jiffies, phba->cgn_evt_timestamp))
5580                 return;
5581         phba->cgn_evt_timestamp = jiffies +
5582                         msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
5583         phba->cgn_evt_minute++;
5584
5585         /* We should get to this point in the routine on 1 minute intervals */
5586
5587         ktime_get_real_ts64(&cur_time);
5588         time64_to_tm(cur_time.tv_sec, 0, &broken);
5589
5590         if (phba->cgn_fpin_frequency &&
5591             phba->cgn_fpin_frequency != LPFC_FPIN_INIT_FREQ) {
5592                 value = LPFC_CGN_TIMER_TO_MIN / phba->cgn_fpin_frequency;
5593                 cp->cgn_stat_npm = value;
5594         }
5595
5596         /* Read and clear the latency counters for this minute */
5597         lvalue = atomic_read(&phba->cgn_latency_evt_cnt);
5598         latsum = atomic64_read(&phba->cgn_latency_evt);
5599         atomic_set(&phba->cgn_latency_evt_cnt, 0);
5600         atomic64_set(&phba->cgn_latency_evt, 0);
5601
5602         /* We need to store MB/sec bandwidth in the congestion information.
5603          * block_cnt is count of 512 byte blocks for the entire minute,
5604          * bps will get bytes per sec before finally converting to MB/sec.
5605          */
5606         bps = div_u64(phba->rx_block_cnt, LPFC_SEC_MIN) * 512;
5607         phba->rx_block_cnt = 0;
5608         mvalue = bps / (1024 * 1024); /* convert to MB/sec */
5609
5610         /* Every minute */
5611         /* cgn parameters */
5612         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
5613         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
5614         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
5615         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
5616
5617         /* Fill in default LUN qdepth */
5618         value = (uint16_t)(phba->pport->cfg_lun_queue_depth);
5619         cp->cgn_lunq = cpu_to_le16(value);
5620
5621         /* Record congestion buffer info - every minute
5622          * cgn_driver_evt_cnt (Driver events)
5623          * cgn_fabric_warn_cnt (Congestion Warnings)
5624          * cgn_latency_evt_cnt / cgn_latency_evt (IO Latency)
5625          * cgn_fabric_alarm_cnt (Congestion Alarms)
5626          */
5627         index = ++cp->cgn_index_minute;
5628         if (cp->cgn_index_minute == LPFC_MIN_HOUR) {
5629                 cp->cgn_index_minute = 0;
5630                 index = 0;
5631         }
5632
5633         /* Get the number of driver events in this sample and reset counter */
5634         dvalue = atomic_read(&phba->cgn_driver_evt_cnt);
5635         atomic_set(&phba->cgn_driver_evt_cnt, 0);
5636
5637         /* Get the number of warning events - FPIN and Signal for this minute */
5638         wvalue = 0;
5639         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_WARN) ||
5640             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
5641             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5642                 wvalue = atomic_read(&phba->cgn_fabric_warn_cnt);
5643         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
5644
5645         /* Get the number of alarm events - FPIN and Signal for this minute */
5646         avalue = 0;
5647         if ((phba->cgn_reg_fpin & LPFC_CGN_FPIN_ALARM) ||
5648             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM)
5649                 avalue = atomic_read(&phba->cgn_fabric_alarm_cnt);
5650         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
5651
5652         /* Collect the driver, warning, alarm and latency counts for this
5653          * minute into the driver congestion buffer.
5654          */
5655         ptr = &cp->cgn_drvr_min[index];
5656         value = (uint16_t)dvalue;
5657         *ptr = cpu_to_le16(value);
5658
5659         ptr = &cp->cgn_warn_min[index];
5660         value = (uint16_t)wvalue;
5661         *ptr = cpu_to_le16(value);
5662
5663         ptr = &cp->cgn_alarm_min[index];
5664         value = (uint16_t)avalue;
5665         *ptr = cpu_to_le16(value);
5666
5667         lptr = &cp->cgn_latency_min[index];
5668         if (lvalue) {
5669                 lvalue = (uint32_t)div_u64(latsum, lvalue);
5670                 *lptr = cpu_to_le32(lvalue);
5671         } else {
5672                 *lptr = 0;
5673         }
5674
5675         /* Collect the bandwidth value into the driver's congesion buffer. */
5676         mptr = &cp->cgn_bw_min[index];
5677         *mptr = cpu_to_le16(mvalue);
5678
5679         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5680                         "2418 Congestion Info - minute (%d): %d %d %d %d %d\n",
5681                         index, dvalue, wvalue, *lptr, mvalue, avalue);
5682
5683         /* Every hour */
5684         if ((phba->cgn_evt_minute % LPFC_MIN_HOUR) == 0) {
5685                 /* Record congestion buffer info - every hour
5686                  * Collapse all minutes into an hour
5687                  */
5688                 index = ++cp->cgn_index_hour;
5689                 if (cp->cgn_index_hour == LPFC_HOUR_DAY) {
5690                         cp->cgn_index_hour = 0;
5691                         index = 0;
5692                 }
5693
5694                 dvalue = 0;
5695                 wvalue = 0;
5696                 lvalue = 0;
5697                 avalue = 0;
5698                 mvalue = 0;
5699                 mbps = 0;
5700                 for (i = 0; i < LPFC_MIN_HOUR; i++) {
5701                         dvalue += le16_to_cpu(cp->cgn_drvr_min[i]);
5702                         wvalue += le16_to_cpu(cp->cgn_warn_min[i]);
5703                         lvalue += le32_to_cpu(cp->cgn_latency_min[i]);
5704                         mbps += le16_to_cpu(cp->cgn_bw_min[i]);
5705                         avalue += le16_to_cpu(cp->cgn_alarm_min[i]);
5706                 }
5707                 if (lvalue)             /* Avg of latency averages */
5708                         lvalue /= LPFC_MIN_HOUR;
5709                 if (mbps)               /* Avg of Bandwidth averages */
5710                         mvalue = mbps / LPFC_MIN_HOUR;
5711
5712                 lptr = &cp->cgn_drvr_hr[index];
5713                 *lptr = cpu_to_le32(dvalue);
5714                 lptr = &cp->cgn_warn_hr[index];
5715                 *lptr = cpu_to_le32(wvalue);
5716                 lptr = &cp->cgn_latency_hr[index];
5717                 *lptr = cpu_to_le32(lvalue);
5718                 mptr = &cp->cgn_bw_hr[index];
5719                 *mptr = cpu_to_le16(mvalue);
5720                 lptr = &cp->cgn_alarm_hr[index];
5721                 *lptr = cpu_to_le32(avalue);
5722
5723                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5724                                 "2419 Congestion Info - hour "
5725                                 "(%d): %d %d %d %d %d\n",
5726                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5727         }
5728
5729         /* Every day */
5730         if ((phba->cgn_evt_minute % LPFC_MIN_DAY) == 0) {
5731                 /* Record congestion buffer info - every hour
5732                  * Collapse all hours into a day. Rotate days
5733                  * after LPFC_MAX_CGN_DAYS.
5734                  */
5735                 index = ++cp->cgn_index_day;
5736                 if (cp->cgn_index_day == LPFC_MAX_CGN_DAYS) {
5737                         cp->cgn_index_day = 0;
5738                         index = 0;
5739                 }
5740
5741                 /* Anytime we overwrite daily index 0, after we wrap,
5742                  * we will be overwriting the oldest day, so we must
5743                  * update the congestion data start time for that day.
5744                  * That start time should have previously been saved after
5745                  * we wrote the last days worth of data.
5746                  */
5747                 if ((phba->hba_flag & HBA_CGN_DAY_WRAP) && index == 0) {
5748                         time64_to_tm(phba->cgn_daily_ts.tv_sec, 0, &broken);
5749
5750                         cp->cgn_info_month = broken.tm_mon + 1;
5751                         cp->cgn_info_day = broken.tm_mday;
5752                         cp->cgn_info_year = broken.tm_year - 100;
5753                         cp->cgn_info_hour = broken.tm_hour;
5754                         cp->cgn_info_minute = broken.tm_min;
5755                         cp->cgn_info_second = broken.tm_sec;
5756
5757                         lpfc_printf_log
5758                                 (phba, KERN_INFO, LOG_CGN_MGMT,
5759                                 "2646 CGNInfo idx0 Start Time: "
5760                                 "%d/%d/%d %d:%d:%d\n",
5761                                 cp->cgn_info_day, cp->cgn_info_month,
5762                                 cp->cgn_info_year, cp->cgn_info_hour,
5763                                 cp->cgn_info_minute, cp->cgn_info_second);
5764                 }
5765
5766                 dvalue = 0;
5767                 wvalue = 0;
5768                 lvalue = 0;
5769                 mvalue = 0;
5770                 mbps = 0;
5771                 avalue = 0;
5772                 for (i = 0; i < LPFC_HOUR_DAY; i++) {
5773                         dvalue += le32_to_cpu(cp->cgn_drvr_hr[i]);
5774                         wvalue += le32_to_cpu(cp->cgn_warn_hr[i]);
5775                         lvalue += le32_to_cpu(cp->cgn_latency_hr[i]);
5776                         mbps += le16_to_cpu(cp->cgn_bw_hr[i]);
5777                         avalue += le32_to_cpu(cp->cgn_alarm_hr[i]);
5778                 }
5779                 if (lvalue)             /* Avg of latency averages */
5780                         lvalue /= LPFC_HOUR_DAY;
5781                 if (mbps)               /* Avg of Bandwidth averages */
5782                         mvalue = mbps / LPFC_HOUR_DAY;
5783
5784                 lptr = &cp->cgn_drvr_day[index];
5785                 *lptr = cpu_to_le32(dvalue);
5786                 lptr = &cp->cgn_warn_day[index];
5787                 *lptr = cpu_to_le32(wvalue);
5788                 lptr = &cp->cgn_latency_day[index];
5789                 *lptr = cpu_to_le32(lvalue);
5790                 mptr = &cp->cgn_bw_day[index];
5791                 *mptr = cpu_to_le16(mvalue);
5792                 lptr = &cp->cgn_alarm_day[index];
5793                 *lptr = cpu_to_le32(avalue);
5794
5795                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5796                                 "2420 Congestion Info - daily (%d): "
5797                                 "%d %d %d %d %d\n",
5798                                 index, dvalue, wvalue, lvalue, mvalue, avalue);
5799
5800                 /* We just wrote LPFC_MAX_CGN_DAYS of data,
5801                  * so we are wrapped on any data after this.
5802                  * Save this as the start time for the next day.
5803                  */
5804                 if (index == (LPFC_MAX_CGN_DAYS - 1)) {
5805                         phba->hba_flag |= HBA_CGN_DAY_WRAP;
5806                         ktime_get_real_ts64(&phba->cgn_daily_ts);
5807                 }
5808         }
5809
5810         /* Use the frequency found in the last rcv'ed FPIN */
5811         value = phba->cgn_fpin_frequency;
5812         cp->cgn_warn_freq = cpu_to_le16(value);
5813         cp->cgn_alarm_freq = cpu_to_le16(value);
5814
5815         lvalue = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
5816                                      LPFC_CGN_CRC32_SEED);
5817         cp->cgn_info_crc = cpu_to_le32(lvalue);
5818 }
5819
5820 /**
5821  * lpfc_calc_cmf_latency - latency from start of rxate timer interval
5822  * @phba: The Hba for which this call is being executed.
5823  *
5824  * The routine calculates the latency from the beginning of the CMF timer
5825  * interval to the current point in time. It is called from IO completion
5826  * when we exceed our Bandwidth limitation for the time interval.
5827  */
5828 uint32_t
5829 lpfc_calc_cmf_latency(struct lpfc_hba *phba)
5830 {
5831         struct timespec64 cmpl_time;
5832         uint32_t msec = 0;
5833
5834         ktime_get_real_ts64(&cmpl_time);
5835
5836         /* This routine works on a ms granularity so sec and usec are
5837          * converted accordingly.
5838          */
5839         if (cmpl_time.tv_sec == phba->cmf_latency.tv_sec) {
5840                 msec = (cmpl_time.tv_nsec - phba->cmf_latency.tv_nsec) /
5841                         NSEC_PER_MSEC;
5842         } else {
5843                 if (cmpl_time.tv_nsec >= phba->cmf_latency.tv_nsec) {
5844                         msec = (cmpl_time.tv_sec -
5845                                 phba->cmf_latency.tv_sec) * MSEC_PER_SEC;
5846                         msec += ((cmpl_time.tv_nsec -
5847                                   phba->cmf_latency.tv_nsec) / NSEC_PER_MSEC);
5848                 } else {
5849                         msec = (cmpl_time.tv_sec - phba->cmf_latency.tv_sec -
5850                                 1) * MSEC_PER_SEC;
5851                         msec += (((NSEC_PER_SEC - phba->cmf_latency.tv_nsec) +
5852                                  cmpl_time.tv_nsec) / NSEC_PER_MSEC);
5853                 }
5854         }
5855         return msec;
5856 }
5857
5858 /**
5859  * lpfc_cmf_timer -  This is the timer function for one congestion
5860  * rate interval.
5861  * @timer: Pointer to the high resolution timer that expired
5862  */
5863 static enum hrtimer_restart
5864 lpfc_cmf_timer(struct hrtimer *timer)
5865 {
5866         struct lpfc_hba *phba = container_of(timer, struct lpfc_hba,
5867                                              cmf_timer);
5868         struct rxtable_entry *entry;
5869         uint32_t io_cnt;
5870         uint32_t head, tail;
5871         uint32_t busy, max_read;
5872         uint64_t total, rcv, lat, mbpi;
5873         int timer_interval = LPFC_CMF_INTERVAL;
5874         uint32_t ms;
5875         struct lpfc_cgn_stat *cgs;
5876         int cpu;
5877
5878         /* Only restart the timer if congestion mgmt is on */
5879         if (phba->cmf_active_mode == LPFC_CFG_OFF ||
5880             !phba->cmf_latency.tv_sec) {
5881                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
5882                                 "6224 CMF timer exit: %d %lld\n",
5883                                 phba->cmf_active_mode,
5884                                 (uint64_t)phba->cmf_latency.tv_sec);
5885                 return HRTIMER_NORESTART;
5886         }
5887
5888         /* If pport is not ready yet, just exit and wait for
5889          * the next timer cycle to hit.
5890          */
5891         if (!phba->pport)
5892                 goto skip;
5893
5894         /* Do not block SCSI IO while in the timer routine since
5895          * total_bytes will be cleared
5896          */
5897         atomic_set(&phba->cmf_stop_io, 1);
5898
5899         /* First we need to calculate the actual ms between
5900          * the last timer interrupt and this one. We ask for
5901          * LPFC_CMF_INTERVAL, however the actual time may
5902          * vary depending on system overhead.
5903          */
5904         ms = lpfc_calc_cmf_latency(phba);
5905
5906
5907         /* Immediately after we calculate the time since the last
5908          * timer interrupt, set the start time for the next
5909          * interrupt
5910          */
5911         ktime_get_real_ts64(&phba->cmf_latency);
5912
5913         phba->cmf_link_byte_count =
5914                 div_u64(phba->cmf_max_line_rate * LPFC_CMF_INTERVAL, 1000);
5915
5916         /* Collect all the stats from the prior timer interval */
5917         total = 0;
5918         io_cnt = 0;
5919         lat = 0;
5920         rcv = 0;
5921         for_each_present_cpu(cpu) {
5922                 cgs = per_cpu_ptr(phba->cmf_stat, cpu);
5923                 total += atomic64_xchg(&cgs->total_bytes, 0);
5924                 io_cnt += atomic_xchg(&cgs->rx_io_cnt, 0);
5925                 lat += atomic64_xchg(&cgs->rx_latency, 0);
5926                 rcv += atomic64_xchg(&cgs->rcv_bytes, 0);
5927         }
5928
5929         /* Before we issue another CMF_SYNC_WQE, retrieve the BW
5930          * returned from the last CMF_SYNC_WQE issued, from
5931          * cmf_last_sync_bw. This will be the target BW for
5932          * this next timer interval.
5933          */
5934         if (phba->cmf_active_mode == LPFC_CFG_MANAGED &&
5935             phba->link_state != LPFC_LINK_DOWN &&
5936             phba->hba_flag & HBA_SETUP) {
5937                 mbpi = phba->cmf_last_sync_bw;
5938                 phba->cmf_last_sync_bw = 0;
5939                 lpfc_issue_cmf_sync_wqe(phba, LPFC_CMF_INTERVAL, total);
5940         } else {
5941                 /* For Monitor mode or link down we want mbpi
5942                  * to be the full link speed
5943                  */
5944                 mbpi = phba->cmf_link_byte_count;
5945         }
5946         phba->cmf_timer_cnt++;
5947
5948         if (io_cnt) {
5949                 /* Update congestion info buffer latency in us */
5950                 atomic_add(io_cnt, &phba->cgn_latency_evt_cnt);
5951                 atomic64_add(lat, &phba->cgn_latency_evt);
5952         }
5953         busy = atomic_xchg(&phba->cmf_busy, 0);
5954         max_read = atomic_xchg(&phba->rx_max_read_cnt, 0);
5955
5956         /* Calculate MBPI for the next timer interval */
5957         if (mbpi) {
5958                 if (mbpi > phba->cmf_link_byte_count ||
5959                     phba->cmf_active_mode == LPFC_CFG_MONITOR)
5960                         mbpi = phba->cmf_link_byte_count;
5961
5962                 /* Change max_bytes_per_interval to what the prior
5963                  * CMF_SYNC_WQE cmpl indicated.
5964                  */
5965                 if (mbpi != phba->cmf_max_bytes_per_interval)
5966                         phba->cmf_max_bytes_per_interval = mbpi;
5967         }
5968
5969         /* Save rxmonitor information for debug */
5970         if (phba->rxtable) {
5971                 head = atomic_xchg(&phba->rxtable_idx_head,
5972                                    LPFC_RXMONITOR_TABLE_IN_USE);
5973                 entry = &phba->rxtable[head];
5974                 entry->total_bytes = total;
5975                 entry->rcv_bytes = rcv;
5976                 entry->cmf_busy = busy;
5977                 entry->cmf_info = phba->cmf_active_info;
5978                 if (io_cnt) {
5979                         entry->avg_io_latency = div_u64(lat, io_cnt);
5980                         entry->avg_io_size = div_u64(rcv, io_cnt);
5981                 } else {
5982                         entry->avg_io_latency = 0;
5983                         entry->avg_io_size = 0;
5984                 }
5985                 entry->max_read_cnt = max_read;
5986                 entry->io_cnt = io_cnt;
5987                 entry->max_bytes_per_interval = mbpi;
5988                 if (phba->cmf_active_mode == LPFC_CFG_MANAGED)
5989                         entry->timer_utilization = phba->cmf_last_ts;
5990                 else
5991                         entry->timer_utilization = ms;
5992                 entry->timer_interval = ms;
5993                 phba->cmf_last_ts = 0;
5994
5995                 /* Increment rxtable index */
5996                 head = (head + 1) % LPFC_MAX_RXMONITOR_ENTRY;
5997                 tail = atomic_read(&phba->rxtable_idx_tail);
5998                 if (head == tail) {
5999                         tail = (tail + 1) % LPFC_MAX_RXMONITOR_ENTRY;
6000                         atomic_set(&phba->rxtable_idx_tail, tail);
6001                 }
6002                 atomic_set(&phba->rxtable_idx_head, head);
6003         }
6004
6005         if (phba->cmf_active_mode == LPFC_CFG_MONITOR) {
6006                 /* If Monitor mode, check if we are oversubscribed
6007                  * against the full line rate.
6008                  */
6009                 if (mbpi && total > mbpi)
6010                         atomic_inc(&phba->cgn_driver_evt_cnt);
6011         }
6012         phba->rx_block_cnt += div_u64(rcv, 512);  /* save 512 byte block cnt */
6013
6014         /* Each minute save Fabric and Driver congestion information */
6015         lpfc_cgn_save_evt_cnt(phba);
6016
6017         /* Since we need to call lpfc_cgn_save_evt_cnt every minute, on the
6018          * minute, adjust our next timer interval, if needed, to ensure a
6019          * 1 minute granularity when we get the next timer interrupt.
6020          */
6021         if (time_after(jiffies + msecs_to_jiffies(LPFC_CMF_INTERVAL),
6022                        phba->cgn_evt_timestamp)) {
6023                 timer_interval = jiffies_to_msecs(phba->cgn_evt_timestamp -
6024                                                   jiffies);
6025                 if (timer_interval <= 0)
6026                         timer_interval = LPFC_CMF_INTERVAL;
6027
6028                 /* If we adjust timer_interval, max_bytes_per_interval
6029                  * needs to be adjusted as well.
6030                  */
6031                 phba->cmf_link_byte_count = div_u64(phba->cmf_max_line_rate *
6032                                                     timer_interval, 1000);
6033                 if (phba->cmf_active_mode == LPFC_CFG_MONITOR)
6034                         phba->cmf_max_bytes_per_interval =
6035                                 phba->cmf_link_byte_count;
6036         }
6037
6038         /* Since total_bytes has already been zero'ed, its okay to unblock
6039          * after max_bytes_per_interval is setup.
6040          */
6041         if (atomic_xchg(&phba->cmf_bw_wait, 0))
6042                 queue_work(phba->wq, &phba->unblock_request_work);
6043
6044         /* SCSI IO is now unblocked */
6045         atomic_set(&phba->cmf_stop_io, 0);
6046
6047 skip:
6048         hrtimer_forward_now(timer,
6049                             ktime_set(0, timer_interval * NSEC_PER_MSEC));
6050         return HRTIMER_RESTART;
6051 }
6052
6053 #define trunk_link_status(__idx)\
6054         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6055                ((phba->trunk_link.link##__idx.state == LPFC_LINK_UP) ?\
6056                 "Link up" : "Link down") : "NA"
6057 /* Did port __idx reported an error */
6058 #define trunk_port_fault(__idx)\
6059         bf_get(lpfc_acqe_fc_la_trunk_config_port##__idx, acqe_fc) ?\
6060                (port_fault & (1 << __idx) ? "YES" : "NO") : "NA"
6061
6062 static void
6063 lpfc_update_trunk_link_status(struct lpfc_hba *phba,
6064                               struct lpfc_acqe_fc_la *acqe_fc)
6065 {
6066         uint8_t port_fault = bf_get(lpfc_acqe_fc_la_trunk_linkmask, acqe_fc);
6067         uint8_t err = bf_get(lpfc_acqe_fc_la_trunk_fault, acqe_fc);
6068
6069         phba->sli4_hba.link_state.speed =
6070                 lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6071                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6072
6073         phba->sli4_hba.link_state.logical_speed =
6074                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6075         /* We got FC link speed, convert to fc_linkspeed (READ_TOPOLOGY) */
6076         phba->fc_linkspeed =
6077                  lpfc_async_link_speed_to_read_top(
6078                                 phba,
6079                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6080
6081         if (bf_get(lpfc_acqe_fc_la_trunk_config_port0, acqe_fc)) {
6082                 phba->trunk_link.link0.state =
6083                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port0, acqe_fc)
6084                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6085                 phba->trunk_link.link0.fault = port_fault & 0x1 ? err : 0;
6086         }
6087         if (bf_get(lpfc_acqe_fc_la_trunk_config_port1, acqe_fc)) {
6088                 phba->trunk_link.link1.state =
6089                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port1, acqe_fc)
6090                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6091                 phba->trunk_link.link1.fault = port_fault & 0x2 ? err : 0;
6092         }
6093         if (bf_get(lpfc_acqe_fc_la_trunk_config_port2, acqe_fc)) {
6094                 phba->trunk_link.link2.state =
6095                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port2, acqe_fc)
6096                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6097                 phba->trunk_link.link2.fault = port_fault & 0x4 ? err : 0;
6098         }
6099         if (bf_get(lpfc_acqe_fc_la_trunk_config_port3, acqe_fc)) {
6100                 phba->trunk_link.link3.state =
6101                         bf_get(lpfc_acqe_fc_la_trunk_link_status_port3, acqe_fc)
6102                         ? LPFC_LINK_UP : LPFC_LINK_DOWN;
6103                 phba->trunk_link.link3.fault = port_fault & 0x8 ? err : 0;
6104         }
6105
6106         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6107                         "2910 Async FC Trunking Event - Speed:%d\n"
6108                         "\tLogical speed:%d "
6109                         "port0: %s port1: %s port2: %s port3: %s\n",
6110                         phba->sli4_hba.link_state.speed,
6111                         phba->sli4_hba.link_state.logical_speed,
6112                         trunk_link_status(0), trunk_link_status(1),
6113                         trunk_link_status(2), trunk_link_status(3));
6114
6115         if (phba->cmf_active_mode != LPFC_CFG_OFF)
6116                 lpfc_cmf_signal_init(phba);
6117
6118         if (port_fault)
6119                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6120                                 "3202 trunk error:0x%x (%s) seen on port0:%s "
6121                                 /*
6122                                  * SLI-4: We have only 0xA error codes
6123                                  * defined as of now. print an appropriate
6124                                  * message in case driver needs to be updated.
6125                                  */
6126                                 "port1:%s port2:%s port3:%s\n", err, err > 0xA ?
6127                                 "UNDEFINED. update driver." : trunk_errmsg[err],
6128                                 trunk_port_fault(0), trunk_port_fault(1),
6129                                 trunk_port_fault(2), trunk_port_fault(3));
6130 }
6131
6132
6133 /**
6134  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
6135  * @phba: pointer to lpfc hba data structure.
6136  * @acqe_fc: pointer to the async fc completion queue entry.
6137  *
6138  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
6139  * that the event was received and then issue a read_topology mailbox command so
6140  * that the rest of the driver will treat it the same as SLI3.
6141  **/
6142 static void
6143 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
6144 {
6145         struct lpfc_dmabuf *mp;
6146         LPFC_MBOXQ_t *pmb;
6147         MAILBOX_t *mb;
6148         struct lpfc_mbx_read_top *la;
6149         int rc;
6150
6151         if (bf_get(lpfc_trailer_type, acqe_fc) !=
6152             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
6153                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6154                                 "2895 Non FC link Event detected.(%d)\n",
6155                                 bf_get(lpfc_trailer_type, acqe_fc));
6156                 return;
6157         }
6158
6159         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6160             LPFC_FC_LA_TYPE_TRUNKING_EVENT) {
6161                 lpfc_update_trunk_link_status(phba, acqe_fc);
6162                 return;
6163         }
6164
6165         /* Keep the link status for extra SLI4 state machine reference */
6166         phba->sli4_hba.link_state.speed =
6167                         lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC,
6168                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc));
6169         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
6170         phba->sli4_hba.link_state.topology =
6171                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
6172         phba->sli4_hba.link_state.status =
6173                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
6174         phba->sli4_hba.link_state.type =
6175                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
6176         phba->sli4_hba.link_state.number =
6177                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
6178         phba->sli4_hba.link_state.fault =
6179                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
6180
6181         if (bf_get(lpfc_acqe_fc_la_att_type, acqe_fc) ==
6182             LPFC_FC_LA_TYPE_LINK_DOWN)
6183                 phba->sli4_hba.link_state.logical_speed = 0;
6184         else if (!phba->sli4_hba.conf_trunk)
6185                 phba->sli4_hba.link_state.logical_speed =
6186                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10;
6187
6188         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6189                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
6190                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
6191                         "%dMbps Fault:%d\n",
6192                         phba->sli4_hba.link_state.speed,
6193                         phba->sli4_hba.link_state.topology,
6194                         phba->sli4_hba.link_state.status,
6195                         phba->sli4_hba.link_state.type,
6196                         phba->sli4_hba.link_state.number,
6197                         phba->sli4_hba.link_state.logical_speed,
6198                         phba->sli4_hba.link_state.fault);
6199         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6200         if (!pmb) {
6201                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6202                                 "2897 The mboxq allocation failed\n");
6203                 return;
6204         }
6205         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6206         if (!mp) {
6207                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6208                                 "2898 The lpfc_dmabuf allocation failed\n");
6209                 goto out_free_pmb;
6210         }
6211         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
6212         if (!mp->virt) {
6213                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6214                                 "2899 The mbuf allocation failed\n");
6215                 goto out_free_dmabuf;
6216         }
6217
6218         /* Cleanup any outstanding ELS commands */
6219         lpfc_els_flush_all_cmd(phba);
6220
6221         /* Block ELS IOCBs until we have done process link event */
6222         phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT;
6223
6224         /* Update link event statistics */
6225         phba->sli.slistat.link_event++;
6226
6227         /* Create lpfc_handle_latt mailbox command from link ACQE */
6228         lpfc_read_topology(phba, pmb, mp);
6229         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
6230         pmb->vport = phba->pport;
6231
6232         if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) {
6233                 phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK);
6234
6235                 switch (phba->sli4_hba.link_state.status) {
6236                 case LPFC_FC_LA_TYPE_MDS_LINK_DOWN:
6237                         phba->link_flag |= LS_MDS_LINK_DOWN;
6238                         break;
6239                 case LPFC_FC_LA_TYPE_MDS_LOOPBACK:
6240                         phba->link_flag |= LS_MDS_LOOPBACK;
6241                         break;
6242                 default:
6243                         break;
6244                 }
6245
6246                 /* Initialize completion status */
6247                 mb = &pmb->u.mb;
6248                 mb->mbxStatus = MBX_SUCCESS;
6249
6250                 /* Parse port fault information field */
6251                 lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc);
6252
6253                 /* Parse and translate link attention fields */
6254                 la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop;
6255                 la->eventTag = acqe_fc->event_tag;
6256
6257                 if (phba->sli4_hba.link_state.status ==
6258                     LPFC_FC_LA_TYPE_UNEXP_WWPN) {
6259                         bf_set(lpfc_mbx_read_top_att_type, la,
6260                                LPFC_FC_LA_TYPE_UNEXP_WWPN);
6261                 } else {
6262                         bf_set(lpfc_mbx_read_top_att_type, la,
6263                                LPFC_FC_LA_TYPE_LINK_DOWN);
6264                 }
6265                 /* Invoke the mailbox command callback function */
6266                 lpfc_mbx_cmpl_read_topology(phba, pmb);
6267
6268                 return;
6269         }
6270
6271         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
6272         if (rc == MBX_NOT_FINISHED) {
6273                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6274                 goto out_free_dmabuf;
6275         }
6276         return;
6277
6278 out_free_dmabuf:
6279         kfree(mp);
6280 out_free_pmb:
6281         mempool_free(pmb, phba->mbox_mem_pool);
6282 }
6283
6284 /**
6285  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
6286  * @phba: pointer to lpfc hba data structure.
6287  * @acqe_sli: pointer to the async SLI completion queue entry.
6288  *
6289  * This routine is to handle the SLI4 asynchronous SLI events.
6290  **/
6291 static void
6292 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
6293 {
6294         char port_name;
6295         char message[128];
6296         uint8_t status;
6297         uint8_t evt_type;
6298         uint8_t operational = 0;
6299         struct temp_event temp_event_data;
6300         struct lpfc_acqe_misconfigured_event *misconfigured;
6301         struct lpfc_acqe_cgn_signal *cgn_signal;
6302         struct Scsi_Host  *shost;
6303         struct lpfc_vport **vports;
6304         int rc, i, cnt;
6305
6306         evt_type = bf_get(lpfc_trailer_type, acqe_sli);
6307
6308         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6309                         "2901 Async SLI event - Type:%d, Event Data: x%08x "
6310                         "x%08x x%08x x%08x\n", evt_type,
6311                         acqe_sli->event_data1, acqe_sli->event_data2,
6312                         acqe_sli->reserved, acqe_sli->trailer);
6313
6314         port_name = phba->Port[0];
6315         if (port_name == 0x00)
6316                 port_name = '?'; /* get port name is empty */
6317
6318         switch (evt_type) {
6319         case LPFC_SLI_EVENT_TYPE_OVER_TEMP:
6320                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6321                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6322                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6323
6324                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6325                                 "3190 Over Temperature:%d Celsius- Port Name %c\n",
6326                                 acqe_sli->event_data1, port_name);
6327
6328                 phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE;
6329                 shost = lpfc_shost_from_vport(phba->pport);
6330                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6331                                           sizeof(temp_event_data),
6332                                           (char *)&temp_event_data,
6333                                           SCSI_NL_VID_TYPE_PCI
6334                                           | PCI_VENDOR_ID_EMULEX);
6335                 break;
6336         case LPFC_SLI_EVENT_TYPE_NORM_TEMP:
6337                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6338                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6339                 temp_event_data.data = (uint32_t)acqe_sli->event_data1;
6340
6341                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6342                                 "3191 Normal Temperature:%d Celsius - Port Name %c\n",
6343                                 acqe_sli->event_data1, port_name);
6344
6345                 shost = lpfc_shost_from_vport(phba->pport);
6346                 fc_host_post_vendor_event(shost, fc_get_event_number(),
6347                                           sizeof(temp_event_data),
6348                                           (char *)&temp_event_data,
6349                                           SCSI_NL_VID_TYPE_PCI
6350                                           | PCI_VENDOR_ID_EMULEX);
6351                 break;
6352         case LPFC_SLI_EVENT_TYPE_MISCONFIGURED:
6353                 misconfigured = (struct lpfc_acqe_misconfigured_event *)
6354                                         &acqe_sli->event_data1;
6355
6356                 /* fetch the status for this port */
6357                 switch (phba->sli4_hba.lnk_info.lnk_no) {
6358                 case LPFC_LINK_NUMBER_0:
6359                         status = bf_get(lpfc_sli_misconfigured_port0_state,
6360                                         &misconfigured->theEvent);
6361                         operational = bf_get(lpfc_sli_misconfigured_port0_op,
6362                                         &misconfigured->theEvent);
6363                         break;
6364                 case LPFC_LINK_NUMBER_1:
6365                         status = bf_get(lpfc_sli_misconfigured_port1_state,
6366                                         &misconfigured->theEvent);
6367                         operational = bf_get(lpfc_sli_misconfigured_port1_op,
6368                                         &misconfigured->theEvent);
6369                         break;
6370                 case LPFC_LINK_NUMBER_2:
6371                         status = bf_get(lpfc_sli_misconfigured_port2_state,
6372                                         &misconfigured->theEvent);
6373                         operational = bf_get(lpfc_sli_misconfigured_port2_op,
6374                                         &misconfigured->theEvent);
6375                         break;
6376                 case LPFC_LINK_NUMBER_3:
6377                         status = bf_get(lpfc_sli_misconfigured_port3_state,
6378                                         &misconfigured->theEvent);
6379                         operational = bf_get(lpfc_sli_misconfigured_port3_op,
6380                                         &misconfigured->theEvent);
6381                         break;
6382                 default:
6383                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6384                                         "3296 "
6385                                         "LPFC_SLI_EVENT_TYPE_MISCONFIGURED "
6386                                         "event: Invalid link %d",
6387                                         phba->sli4_hba.lnk_info.lnk_no);
6388                         return;
6389                 }
6390
6391                 /* Skip if optic state unchanged */
6392                 if (phba->sli4_hba.lnk_info.optic_state == status)
6393                         return;
6394
6395                 switch (status) {
6396                 case LPFC_SLI_EVENT_STATUS_VALID:
6397                         sprintf(message, "Physical Link is functional");
6398                         break;
6399                 case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
6400                         sprintf(message, "Optics faulted/incorrectly "
6401                                 "installed/not installed - Reseat optics, "
6402                                 "if issue not resolved, replace.");
6403                         break;
6404                 case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
6405                         sprintf(message,
6406                                 "Optics of two types installed - Remove one "
6407                                 "optic or install matching pair of optics.");
6408                         break;
6409                 case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
6410                         sprintf(message, "Incompatible optics - Replace with "
6411                                 "compatible optics for card to function.");
6412                         break;
6413                 case LPFC_SLI_EVENT_STATUS_UNQUALIFIED:
6414                         sprintf(message, "Unqualified optics - Replace with "
6415                                 "Avago optics for Warranty and Technical "
6416                                 "Support - Link is%s operational",
6417                                 (operational) ? " not" : "");
6418                         break;
6419                 case LPFC_SLI_EVENT_STATUS_UNCERTIFIED:
6420                         sprintf(message, "Uncertified optics - Replace with "
6421                                 "Avago-certified optics to enable link "
6422                                 "operation - Link is%s operational",
6423                                 (operational) ? " not" : "");
6424                         break;
6425                 default:
6426                         /* firmware is reporting a status we don't know about */
6427                         sprintf(message, "Unknown event status x%02x", status);
6428                         break;
6429                 }
6430
6431                 /* Issue READ_CONFIG mbox command to refresh supported speeds */
6432                 rc = lpfc_sli4_read_config(phba);
6433                 if (rc) {
6434                         phba->lmt = 0;
6435                         lpfc_printf_log(phba, KERN_ERR,
6436                                         LOG_TRACE_EVENT,
6437                                         "3194 Unable to retrieve supported "
6438                                         "speeds, rc = 0x%x\n", rc);
6439                 }
6440                 vports = lpfc_create_vport_work_array(phba);
6441                 if (vports != NULL) {
6442                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6443                                         i++) {
6444                                 shost = lpfc_shost_from_vport(vports[i]);
6445                                 lpfc_host_supported_speeds_set(shost);
6446                         }
6447                 }
6448                 lpfc_destroy_vport_work_array(phba, vports);
6449
6450                 phba->sli4_hba.lnk_info.optic_state = status;
6451                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6452                                 "3176 Port Name %c %s\n", port_name, message);
6453                 break;
6454         case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT:
6455                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6456                                 "3192 Remote DPort Test Initiated - "
6457                                 "Event Data1:x%08x Event Data2: x%08x\n",
6458                                 acqe_sli->event_data1, acqe_sli->event_data2);
6459                 break;
6460         case LPFC_SLI_EVENT_TYPE_PORT_PARAMS_CHG:
6461                 /* Call FW to obtain active parms */
6462                 lpfc_sli4_cgn_parm_chg_evt(phba);
6463                 break;
6464         case LPFC_SLI_EVENT_TYPE_MISCONF_FAWWN:
6465                 /* Misconfigured WWN. Reports that the SLI Port is configured
6466                  * to use FA-WWN, but the attached device doesn’t support it.
6467                  * No driver action is required.
6468                  * Event Data1 - N.A, Event Data2 - N.A
6469                  */
6470                 lpfc_log_msg(phba, KERN_WARNING, LOG_SLI,
6471                              "2699 Misconfigured FA-WWN - Attached device does "
6472                              "not support FA-WWN\n");
6473                 break;
6474         case LPFC_SLI_EVENT_TYPE_EEPROM_FAILURE:
6475                 /* EEPROM failure. No driver action is required */
6476                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6477                              "2518 EEPROM failure - "
6478                              "Event Data1: x%08x Event Data2: x%08x\n",
6479                              acqe_sli->event_data1, acqe_sli->event_data2);
6480                 break;
6481         case LPFC_SLI_EVENT_TYPE_CGN_SIGNAL:
6482                 if (phba->cmf_active_mode == LPFC_CFG_OFF)
6483                         break;
6484                 cgn_signal = (struct lpfc_acqe_cgn_signal *)
6485                                         &acqe_sli->event_data1;
6486                 phba->cgn_acqe_cnt++;
6487
6488                 cnt = bf_get(lpfc_warn_acqe, cgn_signal);
6489                 atomic64_add(cnt, &phba->cgn_acqe_stat.warn);
6490                 atomic64_add(cgn_signal->alarm_cnt, &phba->cgn_acqe_stat.alarm);
6491
6492                 /* no threshold for CMF, even 1 signal will trigger an event */
6493
6494                 /* Alarm overrides warning, so check that first */
6495                 if (cgn_signal->alarm_cnt) {
6496                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6497                                 /* Keep track of alarm cnt for CMF_SYNC_WQE */
6498                                 atomic_add(cgn_signal->alarm_cnt,
6499                                            &phba->cgn_sync_alarm_cnt);
6500                         }
6501                 } else if (cnt) {
6502                         /* signal action needs to be taken */
6503                         if (phba->cgn_reg_signal == EDC_CG_SIG_WARN_ONLY ||
6504                             phba->cgn_reg_signal == EDC_CG_SIG_WARN_ALARM) {
6505                                 /* Keep track of warning cnt for CMF_SYNC_WQE */
6506                                 atomic_add(cnt, &phba->cgn_sync_warn_cnt);
6507                         }
6508                 }
6509                 break;
6510         default:
6511                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6512                                 "3193 Unrecognized SLI event, type: 0x%x",
6513                                 evt_type);
6514                 break;
6515         }
6516 }
6517
6518 /**
6519  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
6520  * @vport: pointer to vport data structure.
6521  *
6522  * This routine is to perform Clear Virtual Link (CVL) on a vport in
6523  * response to a CVL event.
6524  *
6525  * Return the pointer to the ndlp with the vport if successful, otherwise
6526  * return NULL.
6527  **/
6528 static struct lpfc_nodelist *
6529 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
6530 {
6531         struct lpfc_nodelist *ndlp;
6532         struct Scsi_Host *shost;
6533         struct lpfc_hba *phba;
6534
6535         if (!vport)
6536                 return NULL;
6537         phba = vport->phba;
6538         if (!phba)
6539                 return NULL;
6540         ndlp = lpfc_findnode_did(vport, Fabric_DID);
6541         if (!ndlp) {
6542                 /* Cannot find existing Fabric ndlp, so allocate a new one */
6543                 ndlp = lpfc_nlp_init(vport, Fabric_DID);
6544                 if (!ndlp)
6545                         return 0;
6546                 /* Set the node type */
6547                 ndlp->nlp_type |= NLP_FABRIC;
6548                 /* Put ndlp onto node list */
6549                 lpfc_enqueue_node(vport, ndlp);
6550         }
6551         if ((phba->pport->port_state < LPFC_FLOGI) &&
6552                 (phba->pport->port_state != LPFC_VPORT_FAILED))
6553                 return NULL;
6554         /* If virtual link is not yet instantiated ignore CVL */
6555         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
6556                 && (vport->port_state != LPFC_VPORT_FAILED))
6557                 return NULL;
6558         shost = lpfc_shost_from_vport(vport);
6559         if (!shost)
6560                 return NULL;
6561         lpfc_linkdown_port(vport);
6562         lpfc_cleanup_pending_mbox(vport);
6563         spin_lock_irq(shost->host_lock);
6564         vport->fc_flag |= FC_VPORT_CVL_RCVD;
6565         spin_unlock_irq(shost->host_lock);
6566
6567         return ndlp;
6568 }
6569
6570 /**
6571  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
6572  * @phba: pointer to lpfc hba data structure.
6573  *
6574  * This routine is to perform Clear Virtual Link (CVL) on all vports in
6575  * response to a FCF dead event.
6576  **/
6577 static void
6578 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
6579 {
6580         struct lpfc_vport **vports;
6581         int i;
6582
6583         vports = lpfc_create_vport_work_array(phba);
6584         if (vports)
6585                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
6586                         lpfc_sli4_perform_vport_cvl(vports[i]);
6587         lpfc_destroy_vport_work_array(phba, vports);
6588 }
6589
6590 /**
6591  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
6592  * @phba: pointer to lpfc hba data structure.
6593  * @acqe_fip: pointer to the async fcoe completion queue entry.
6594  *
6595  * This routine is to handle the SLI4 asynchronous fcoe event.
6596  **/
6597 static void
6598 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
6599                         struct lpfc_acqe_fip *acqe_fip)
6600 {
6601         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
6602         int rc;
6603         struct lpfc_vport *vport;
6604         struct lpfc_nodelist *ndlp;
6605         int active_vlink_present;
6606         struct lpfc_vport **vports;
6607         int i;
6608
6609         phba->fc_eventTag = acqe_fip->event_tag;
6610         phba->fcoe_eventtag = acqe_fip->event_tag;
6611         switch (event_type) {
6612         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
6613         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
6614                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
6615                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6616                                         "2546 New FCF event, evt_tag:x%x, "
6617                                         "index:x%x\n",
6618                                         acqe_fip->event_tag,
6619                                         acqe_fip->index);
6620                 else
6621                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
6622                                         LOG_DISCOVERY,
6623                                         "2788 FCF param modified event, "
6624                                         "evt_tag:x%x, index:x%x\n",
6625                                         acqe_fip->event_tag,
6626                                         acqe_fip->index);
6627                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6628                         /*
6629                          * During period of FCF discovery, read the FCF
6630                          * table record indexed by the event to update
6631                          * FCF roundrobin failover eligible FCF bmask.
6632                          */
6633                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6634                                         LOG_DISCOVERY,
6635                                         "2779 Read FCF (x%x) for updating "
6636                                         "roundrobin FCF failover bmask\n",
6637                                         acqe_fip->index);
6638                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
6639                 }
6640
6641                 /* If the FCF discovery is in progress, do nothing. */
6642                 spin_lock_irq(&phba->hbalock);
6643                 if (phba->hba_flag & FCF_TS_INPROG) {
6644                         spin_unlock_irq(&phba->hbalock);
6645                         break;
6646                 }
6647                 /* If fast FCF failover rescan event is pending, do nothing */
6648                 if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) {
6649                         spin_unlock_irq(&phba->hbalock);
6650                         break;
6651                 }
6652
6653                 /* If the FCF has been in discovered state, do nothing. */
6654                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
6655                         spin_unlock_irq(&phba->hbalock);
6656                         break;
6657                 }
6658                 spin_unlock_irq(&phba->hbalock);
6659
6660                 /* Otherwise, scan the entire FCF table and re-discover SAN */
6661                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6662                                 "2770 Start FCF table scan per async FCF "
6663                                 "event, evt_tag:x%x, index:x%x\n",
6664                                 acqe_fip->event_tag, acqe_fip->index);
6665                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
6666                                                      LPFC_FCOE_FCF_GET_FIRST);
6667                 if (rc)
6668                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6669                                         "2547 Issue FCF scan read FCF mailbox "
6670                                         "command failed (x%x)\n", rc);
6671                 break;
6672
6673         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
6674                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6675                                 "2548 FCF Table full count 0x%x tag 0x%x\n",
6676                                 bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
6677                                 acqe_fip->event_tag);
6678                 break;
6679
6680         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
6681                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6682                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6683                                 "2549 FCF (x%x) disconnected from network, "
6684                                  "tag:x%x\n", acqe_fip->index,
6685                                  acqe_fip->event_tag);
6686                 /*
6687                  * If we are in the middle of FCF failover process, clear
6688                  * the corresponding FCF bit in the roundrobin bitmap.
6689                  */
6690                 spin_lock_irq(&phba->hbalock);
6691                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
6692                     (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) {
6693                         spin_unlock_irq(&phba->hbalock);
6694                         /* Update FLOGI FCF failover eligible FCF bmask */
6695                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
6696                         break;
6697                 }
6698                 spin_unlock_irq(&phba->hbalock);
6699
6700                 /* If the event is not for currently used fcf do nothing */
6701                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
6702                         break;
6703
6704                 /*
6705                  * Otherwise, request the port to rediscover the entire FCF
6706                  * table for a fast recovery from case that the current FCF
6707                  * is no longer valid as we are not in the middle of FCF
6708                  * failover process already.
6709                  */
6710                 spin_lock_irq(&phba->hbalock);
6711                 /* Mark the fast failover process in progress */
6712                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
6713                 spin_unlock_irq(&phba->hbalock);
6714
6715                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
6716                                 "2771 Start FCF fast failover process due to "
6717                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
6718                                 "\n", acqe_fip->event_tag, acqe_fip->index);
6719                 rc = lpfc_sli4_redisc_fcf_table(phba);
6720                 if (rc) {
6721                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6722                                         LOG_TRACE_EVENT,
6723                                         "2772 Issue FCF rediscover mailbox "
6724                                         "command failed, fail through to FCF "
6725                                         "dead event\n");
6726                         spin_lock_irq(&phba->hbalock);
6727                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
6728                         spin_unlock_irq(&phba->hbalock);
6729                         /*
6730                          * Last resort will fail over by treating this
6731                          * as a link down to FCF registration.
6732                          */
6733                         lpfc_sli4_fcf_dead_failthrough(phba);
6734                 } else {
6735                         /* Reset FCF roundrobin bmask for new discovery */
6736                         lpfc_sli4_clear_fcf_rr_bmask(phba);
6737                         /*
6738                          * Handling fast FCF failover to a DEAD FCF event is
6739                          * considered equalivant to receiving CVL to all vports.
6740                          */
6741                         lpfc_sli4_perform_all_vport_cvl(phba);
6742                 }
6743                 break;
6744         case LPFC_FIP_EVENT_TYPE_CVL:
6745                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
6746                 lpfc_printf_log(phba, KERN_ERR,
6747                                 LOG_TRACE_EVENT,
6748                         "2718 Clear Virtual Link Received for VPI 0x%x"
6749                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
6750
6751                 vport = lpfc_find_vport_by_vpid(phba,
6752                                                 acqe_fip->index);
6753                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
6754                 if (!ndlp)
6755                         break;
6756                 active_vlink_present = 0;
6757
6758                 vports = lpfc_create_vport_work_array(phba);
6759                 if (vports) {
6760                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
6761                                         i++) {
6762                                 if ((!(vports[i]->fc_flag &
6763                                         FC_VPORT_CVL_RCVD)) &&
6764                                         (vports[i]->port_state > LPFC_FDISC)) {
6765                                         active_vlink_present = 1;
6766                                         break;
6767                                 }
6768                         }
6769                         lpfc_destroy_vport_work_array(phba, vports);
6770                 }
6771
6772                 /*
6773                  * Don't re-instantiate if vport is marked for deletion.
6774                  * If we are here first then vport_delete is going to wait
6775                  * for discovery to complete.
6776                  */
6777                 if (!(vport->load_flag & FC_UNLOADING) &&
6778                                         active_vlink_present) {
6779                         /*
6780                          * If there are other active VLinks present,
6781                          * re-instantiate the Vlink using FDISC.
6782                          */
6783                         mod_timer(&ndlp->nlp_delayfunc,
6784                                   jiffies + msecs_to_jiffies(1000));
6785                         spin_lock_irq(&ndlp->lock);
6786                         ndlp->nlp_flag |= NLP_DELAY_TMO;
6787                         spin_unlock_irq(&ndlp->lock);
6788                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
6789                         vport->port_state = LPFC_FDISC;
6790                 } else {
6791                         /*
6792                          * Otherwise, we request port to rediscover
6793                          * the entire FCF table for a fast recovery
6794                          * from possible case that the current FCF
6795                          * is no longer valid if we are not already
6796                          * in the FCF failover process.
6797                          */
6798                         spin_lock_irq(&phba->hbalock);
6799                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
6800                                 spin_unlock_irq(&phba->hbalock);
6801                                 break;
6802                         }
6803                         /* Mark the fast failover process in progress */
6804                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
6805                         spin_unlock_irq(&phba->hbalock);
6806                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
6807                                         LOG_DISCOVERY,
6808                                         "2773 Start FCF failover per CVL, "
6809                                         "evt_tag:x%x\n", acqe_fip->event_tag);
6810                         rc = lpfc_sli4_redisc_fcf_table(phba);
6811                         if (rc) {
6812                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
6813                                                 LOG_TRACE_EVENT,
6814                                                 "2774 Issue FCF rediscover "
6815                                                 "mailbox command failed, "
6816                                                 "through to CVL event\n");
6817                                 spin_lock_irq(&phba->hbalock);
6818                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
6819                                 spin_unlock_irq(&phba->hbalock);
6820                                 /*
6821                                  * Last resort will be re-try on the
6822                                  * the current registered FCF entry.
6823                                  */
6824                                 lpfc_retry_pport_discovery(phba);
6825                         } else
6826                                 /*
6827                                  * Reset FCF roundrobin bmask for new
6828                                  * discovery.
6829                                  */
6830                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
6831                 }
6832                 break;
6833         default:
6834                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6835                                 "0288 Unknown FCoE event type 0x%x event tag "
6836                                 "0x%x\n", event_type, acqe_fip->event_tag);
6837                 break;
6838         }
6839 }
6840
6841 /**
6842  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
6843  * @phba: pointer to lpfc hba data structure.
6844  * @acqe_dcbx: pointer to the async dcbx completion queue entry.
6845  *
6846  * This routine is to handle the SLI4 asynchronous dcbx event.
6847  **/
6848 static void
6849 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
6850                          struct lpfc_acqe_dcbx *acqe_dcbx)
6851 {
6852         phba->fc_eventTag = acqe_dcbx->event_tag;
6853         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
6854                         "0290 The SLI4 DCBX asynchronous event is not "
6855                         "handled yet\n");
6856 }
6857
6858 /**
6859  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
6860  * @phba: pointer to lpfc hba data structure.
6861  * @acqe_grp5: pointer to the async grp5 completion queue entry.
6862  *
6863  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
6864  * is an asynchronous notified of a logical link speed change.  The Port
6865  * reports the logical link speed in units of 10Mbps.
6866  **/
6867 static void
6868 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
6869                          struct lpfc_acqe_grp5 *acqe_grp5)
6870 {
6871         uint16_t prev_ll_spd;
6872
6873         phba->fc_eventTag = acqe_grp5->event_tag;
6874         phba->fcoe_eventtag = acqe_grp5->event_tag;
6875         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
6876         phba->sli4_hba.link_state.logical_speed =
6877                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10;
6878         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6879                         "2789 GRP5 Async Event: Updating logical link speed "
6880                         "from %dMbps to %dMbps\n", prev_ll_spd,
6881                         phba->sli4_hba.link_state.logical_speed);
6882 }
6883
6884 /**
6885  * lpfc_sli4_async_cmstat_evt - Process the asynchronous cmstat event
6886  * @phba: pointer to lpfc hba data structure.
6887  *
6888  * This routine is to handle the SLI4 asynchronous cmstat event. A cmstat event
6889  * is an asynchronous notification of a request to reset CM stats.
6890  **/
6891 static void
6892 lpfc_sli4_async_cmstat_evt(struct lpfc_hba *phba)
6893 {
6894         if (!phba->cgn_i)
6895                 return;
6896         lpfc_init_congestion_stat(phba);
6897 }
6898
6899 /**
6900  * lpfc_cgn_params_val - Validate FW congestion parameters.
6901  * @phba: pointer to lpfc hba data structure.
6902  * @p_cfg_param: pointer to FW provided congestion parameters.
6903  *
6904  * This routine validates the congestion parameters passed
6905  * by the FW to the driver via an ACQE event.
6906  **/
6907 static void
6908 lpfc_cgn_params_val(struct lpfc_hba *phba, struct lpfc_cgn_param *p_cfg_param)
6909 {
6910         spin_lock_irq(&phba->hbalock);
6911
6912         if (!lpfc_rangecheck(p_cfg_param->cgn_param_mode, LPFC_CFG_OFF,
6913                              LPFC_CFG_MONITOR)) {
6914                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT,
6915                                 "6225 CMF mode param out of range: %d\n",
6916                                  p_cfg_param->cgn_param_mode);
6917                 p_cfg_param->cgn_param_mode = LPFC_CFG_OFF;
6918         }
6919
6920         spin_unlock_irq(&phba->hbalock);
6921 }
6922
6923 /**
6924  * lpfc_cgn_params_parse - Process a FW cong parm change event
6925  * @phba: pointer to lpfc hba data structure.
6926  * @p_cgn_param: pointer to a data buffer with the FW cong params.
6927  * @len: the size of pdata in bytes.
6928  *
6929  * This routine validates the congestion management buffer signature
6930  * from the FW, validates the contents and makes corrections for
6931  * valid, in-range values.  If the signature magic is correct and
6932  * after parameter validation, the contents are copied to the driver's
6933  * @phba structure. If the magic is incorrect, an error message is
6934  * logged.
6935  **/
6936 static void
6937 lpfc_cgn_params_parse(struct lpfc_hba *phba,
6938                       struct lpfc_cgn_param *p_cgn_param, uint32_t len)
6939 {
6940         struct lpfc_cgn_info *cp;
6941         uint32_t crc, oldmode;
6942
6943         /* Make sure the FW has encoded the correct magic number to
6944          * validate the congestion parameter in FW memory.
6945          */
6946         if (p_cgn_param->cgn_param_magic == LPFC_CFG_PARAM_MAGIC_NUM) {
6947                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
6948                                 "4668 FW cgn parm buffer data: "
6949                                 "magic 0x%x version %d mode %d "
6950                                 "level0 %d level1 %d "
6951                                 "level2 %d byte13 %d "
6952                                 "byte14 %d byte15 %d "
6953                                 "byte11 %d byte12 %d activeMode %d\n",
6954                                 p_cgn_param->cgn_param_magic,
6955                                 p_cgn_param->cgn_param_version,
6956                                 p_cgn_param->cgn_param_mode,
6957                                 p_cgn_param->cgn_param_level0,
6958                                 p_cgn_param->cgn_param_level1,
6959                                 p_cgn_param->cgn_param_level2,
6960                                 p_cgn_param->byte13,
6961                                 p_cgn_param->byte14,
6962                                 p_cgn_param->byte15,
6963                                 p_cgn_param->byte11,
6964                                 p_cgn_param->byte12,
6965                                 phba->cmf_active_mode);
6966
6967                 oldmode = phba->cmf_active_mode;
6968
6969                 /* Any parameters out of range are corrected to defaults
6970                  * by this routine.  No need to fail.
6971                  */
6972                 lpfc_cgn_params_val(phba, p_cgn_param);
6973
6974                 /* Parameters are verified, move them into driver storage */
6975                 spin_lock_irq(&phba->hbalock);
6976                 memcpy(&phba->cgn_p, p_cgn_param,
6977                        sizeof(struct lpfc_cgn_param));
6978
6979                 /* Update parameters in congestion info buffer now */
6980                 if (phba->cgn_i) {
6981                         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
6982                         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
6983                         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
6984                         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
6985                         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
6986                         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ,
6987                                                   LPFC_CGN_CRC32_SEED);
6988                         cp->cgn_info_crc = cpu_to_le32(crc);
6989                 }
6990                 spin_unlock_irq(&phba->hbalock);
6991
6992                 phba->cmf_active_mode = phba->cgn_p.cgn_param_mode;
6993
6994                 switch (oldmode) {
6995                 case LPFC_CFG_OFF:
6996                         if (phba->cgn_p.cgn_param_mode != LPFC_CFG_OFF) {
6997                                 /* Turning CMF on */
6998                                 lpfc_cmf_start(phba);
6999
7000                                 if (phba->link_state >= LPFC_LINK_UP) {
7001                                         phba->cgn_reg_fpin =
7002                                                 phba->cgn_init_reg_fpin;
7003                                         phba->cgn_reg_signal =
7004                                                 phba->cgn_init_reg_signal;
7005                                         lpfc_issue_els_edc(phba->pport, 0);
7006                                 }
7007                         }
7008                         break;
7009                 case LPFC_CFG_MANAGED:
7010                         switch (phba->cgn_p.cgn_param_mode) {
7011                         case LPFC_CFG_OFF:
7012                                 /* Turning CMF off */
7013                                 lpfc_cmf_stop(phba);
7014                                 if (phba->link_state >= LPFC_LINK_UP)
7015                                         lpfc_issue_els_edc(phba->pport, 0);
7016                                 break;
7017                         case LPFC_CFG_MONITOR:
7018                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7019                                                 "4661 Switch from MANAGED to "
7020                                                 "`MONITOR mode\n");
7021                                 phba->cmf_max_bytes_per_interval =
7022                                         phba->cmf_link_byte_count;
7023
7024                                 /* Resume blocked IO - unblock on workqueue */
7025                                 queue_work(phba->wq,
7026                                            &phba->unblock_request_work);
7027                                 break;
7028                         }
7029                         break;
7030                 case LPFC_CFG_MONITOR:
7031                         switch (phba->cgn_p.cgn_param_mode) {
7032                         case LPFC_CFG_OFF:
7033                                 /* Turning CMF off */
7034                                 lpfc_cmf_stop(phba);
7035                                 if (phba->link_state >= LPFC_LINK_UP)
7036                                         lpfc_issue_els_edc(phba->pport, 0);
7037                                 break;
7038                         case LPFC_CFG_MANAGED:
7039                                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
7040                                                 "4662 Switch from MONITOR to "
7041                                                 "MANAGED mode\n");
7042                                 lpfc_cmf_signal_init(phba);
7043                                 break;
7044                         }
7045                         break;
7046                 }
7047         } else {
7048                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7049                                 "4669 FW cgn parm buf wrong magic 0x%x "
7050                                 "version %d\n", p_cgn_param->cgn_param_magic,
7051                                 p_cgn_param->cgn_param_version);
7052         }
7053 }
7054
7055 /**
7056  * lpfc_sli4_cgn_params_read - Read and Validate FW congestion parameters.
7057  * @phba: pointer to lpfc hba data structure.
7058  *
7059  * This routine issues a read_object mailbox command to
7060  * get the congestion management parameters from the FW
7061  * parses it and updates the driver maintained values.
7062  *
7063  * Returns
7064  *  0     if the object was empty
7065  *  -Eval if an error was encountered
7066  *  Count if bytes were read from object
7067  **/
7068 int
7069 lpfc_sli4_cgn_params_read(struct lpfc_hba *phba)
7070 {
7071         int ret = 0;
7072         struct lpfc_cgn_param *p_cgn_param = NULL;
7073         u32 *pdata = NULL;
7074         u32 len = 0;
7075
7076         /* Find out if the FW has a new set of congestion parameters. */
7077         len = sizeof(struct lpfc_cgn_param);
7078         pdata = kzalloc(len, GFP_KERNEL);
7079         ret = lpfc_read_object(phba, (char *)LPFC_PORT_CFG_NAME,
7080                                pdata, len);
7081
7082         /* 0 means no data.  A negative means error.  A positive means
7083          * bytes were copied.
7084          */
7085         if (!ret) {
7086                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7087                                 "4670 CGN RD OBJ returns no data\n");
7088                 goto rd_obj_err;
7089         } else if (ret < 0) {
7090                 /* Some error.  Just exit and return it to the caller.*/
7091                 goto rd_obj_err;
7092         }
7093
7094         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
7095                         "6234 READ CGN PARAMS Successful %d\n", len);
7096
7097         /* Parse data pointer over len and update the phba congestion
7098          * parameters with values passed back.  The receive rate values
7099          * may have been altered in FW, but take no action here.
7100          */
7101         p_cgn_param = (struct lpfc_cgn_param *)pdata;
7102         lpfc_cgn_params_parse(phba, p_cgn_param, len);
7103
7104  rd_obj_err:
7105         kfree(pdata);
7106         return ret;
7107 }
7108
7109 /**
7110  * lpfc_sli4_cgn_parm_chg_evt - Process a FW congestion param change event
7111  * @phba: pointer to lpfc hba data structure.
7112  *
7113  * The FW generated Async ACQE SLI event calls this routine when
7114  * the event type is an SLI Internal Port Event and the Event Code
7115  * indicates a change to the FW maintained congestion parameters.
7116  *
7117  * This routine executes a Read_Object mailbox call to obtain the
7118  * current congestion parameters maintained in FW and corrects
7119  * the driver's active congestion parameters.
7120  *
7121  * The acqe event is not passed because there is no further data
7122  * required.
7123  *
7124  * Returns nonzero error if event processing encountered an error.
7125  * Zero otherwise for success.
7126  **/
7127 static int
7128 lpfc_sli4_cgn_parm_chg_evt(struct lpfc_hba *phba)
7129 {
7130         int ret = 0;
7131
7132         if (!phba->sli4_hba.pc_sli4_params.cmf) {
7133                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7134                                 "4664 Cgn Evt when E2E off. Drop event\n");
7135                 return -EACCES;
7136         }
7137
7138         /* If the event is claiming an empty object, it's ok.  A write
7139          * could have cleared it.  Only error is a negative return
7140          * status.
7141          */
7142         ret = lpfc_sli4_cgn_params_read(phba);
7143         if (ret < 0) {
7144                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7145                                 "4667 Error reading Cgn Params (%d)\n",
7146                                 ret);
7147         } else if (!ret) {
7148                 lpfc_printf_log(phba, KERN_ERR, LOG_CGN_MGMT | LOG_INIT,
7149                                 "4673 CGN Event empty object.\n");
7150         }
7151         return ret;
7152 }
7153
7154 /**
7155  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
7156  * @phba: pointer to lpfc hba data structure.
7157  *
7158  * This routine is invoked by the worker thread to process all the pending
7159  * SLI4 asynchronous events.
7160  **/
7161 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
7162 {
7163         struct lpfc_cq_event *cq_event;
7164         unsigned long iflags;
7165
7166         /* First, declare the async event has been handled */
7167         spin_lock_irqsave(&phba->hbalock, iflags);
7168         phba->hba_flag &= ~ASYNC_EVENT;
7169         spin_unlock_irqrestore(&phba->hbalock, iflags);
7170
7171         /* Now, handle all the async events */
7172         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7173         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
7174                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
7175                                  cq_event, struct lpfc_cq_event, list);
7176                 spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock,
7177                                        iflags);
7178
7179                 /* Process the asynchronous event */
7180                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
7181                 case LPFC_TRAILER_CODE_LINK:
7182                         lpfc_sli4_async_link_evt(phba,
7183                                                  &cq_event->cqe.acqe_link);
7184                         break;
7185                 case LPFC_TRAILER_CODE_FCOE:
7186                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
7187                         break;
7188                 case LPFC_TRAILER_CODE_DCBX:
7189                         lpfc_sli4_async_dcbx_evt(phba,
7190                                                  &cq_event->cqe.acqe_dcbx);
7191                         break;
7192                 case LPFC_TRAILER_CODE_GRP5:
7193                         lpfc_sli4_async_grp5_evt(phba,
7194                                                  &cq_event->cqe.acqe_grp5);
7195                         break;
7196                 case LPFC_TRAILER_CODE_FC:
7197                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
7198                         break;
7199                 case LPFC_TRAILER_CODE_SLI:
7200                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
7201                         break;
7202                 case LPFC_TRAILER_CODE_CMSTAT:
7203                         lpfc_sli4_async_cmstat_evt(phba);
7204                         break;
7205                 default:
7206                         lpfc_printf_log(phba, KERN_ERR,
7207                                         LOG_TRACE_EVENT,
7208                                         "1804 Invalid asynchronous event code: "
7209                                         "x%x\n", bf_get(lpfc_trailer_code,
7210                                         &cq_event->cqe.mcqe_cmpl));
7211                         break;
7212                 }
7213
7214                 /* Free the completion event processed to the free pool */
7215                 lpfc_sli4_cq_event_release(phba, cq_event);
7216                 spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
7217         }
7218         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
7219 }
7220
7221 /**
7222  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
7223  * @phba: pointer to lpfc hba data structure.
7224  *
7225  * This routine is invoked by the worker thread to process FCF table
7226  * rediscovery pending completion event.
7227  **/
7228 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
7229 {
7230         int rc;
7231
7232         spin_lock_irq(&phba->hbalock);
7233         /* Clear FCF rediscovery timeout event */
7234         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
7235         /* Clear driver fast failover FCF record flag */
7236         phba->fcf.failover_rec.flag = 0;
7237         /* Set state for FCF fast failover */
7238         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
7239         spin_unlock_irq(&phba->hbalock);
7240
7241         /* Scan FCF table from the first entry to re-discover SAN */
7242         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
7243                         "2777 Start post-quiescent FCF table scan\n");
7244         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
7245         if (rc)
7246                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7247                                 "2747 Issue FCF scan read FCF mailbox "
7248                                 "command failed 0x%x\n", rc);
7249 }
7250
7251 /**
7252  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
7253  * @phba: pointer to lpfc hba data structure.
7254  * @dev_grp: The HBA PCI-Device group number.
7255  *
7256  * This routine is invoked to set up the per HBA PCI-Device group function
7257  * API jump table entries.
7258  *
7259  * Return: 0 if success, otherwise -ENODEV
7260  **/
7261 int
7262 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7263 {
7264         int rc;
7265
7266         /* Set up lpfc PCI-device group */
7267         phba->pci_dev_grp = dev_grp;
7268
7269         /* The LPFC_PCI_DEV_OC uses SLI4 */
7270         if (dev_grp == LPFC_PCI_DEV_OC)
7271                 phba->sli_rev = LPFC_SLI_REV4;
7272
7273         /* Set up device INIT API function jump table */
7274         rc = lpfc_init_api_table_setup(phba, dev_grp);
7275         if (rc)
7276                 return -ENODEV;
7277         /* Set up SCSI API function jump table */
7278         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
7279         if (rc)
7280                 return -ENODEV;
7281         /* Set up SLI API function jump table */
7282         rc = lpfc_sli_api_table_setup(phba, dev_grp);
7283         if (rc)
7284                 return -ENODEV;
7285         /* Set up MBOX API function jump table */
7286         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
7287         if (rc)
7288                 return -ENODEV;
7289
7290         return 0;
7291 }
7292
7293 /**
7294  * lpfc_log_intr_mode - Log the active interrupt mode
7295  * @phba: pointer to lpfc hba data structure.
7296  * @intr_mode: active interrupt mode adopted.
7297  *
7298  * This routine it invoked to log the currently used active interrupt mode
7299  * to the device.
7300  **/
7301 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
7302 {
7303         switch (intr_mode) {
7304         case 0:
7305                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7306                                 "0470 Enable INTx interrupt mode.\n");
7307                 break;
7308         case 1:
7309                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7310                                 "0481 Enabled MSI interrupt mode.\n");
7311                 break;
7312         case 2:
7313                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7314                                 "0480 Enabled MSI-X interrupt mode.\n");
7315                 break;
7316         default:
7317                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7318                                 "0482 Illegal interrupt mode.\n");
7319                 break;
7320         }
7321         return;
7322 }
7323
7324 /**
7325  * lpfc_enable_pci_dev - Enable a generic PCI device.
7326  * @phba: pointer to lpfc hba data structure.
7327  *
7328  * This routine is invoked to enable the PCI device that is common to all
7329  * PCI devices.
7330  *
7331  * Return codes
7332  *      0 - successful
7333  *      other values - error
7334  **/
7335 static int
7336 lpfc_enable_pci_dev(struct lpfc_hba *phba)
7337 {
7338         struct pci_dev *pdev;
7339
7340         /* Obtain PCI device reference */
7341         if (!phba->pcidev)
7342                 goto out_error;
7343         else
7344                 pdev = phba->pcidev;
7345         /* Enable PCI device */
7346         if (pci_enable_device_mem(pdev))
7347                 goto out_error;
7348         /* Request PCI resource for the device */
7349         if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME))
7350                 goto out_disable_device;
7351         /* Set up device as PCI master and save state for EEH */
7352         pci_set_master(pdev);
7353         pci_try_set_mwi(pdev);
7354         pci_save_state(pdev);
7355
7356         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
7357         if (pci_is_pcie(pdev))
7358                 pdev->needs_freset = 1;
7359
7360         return 0;
7361
7362 out_disable_device:
7363         pci_disable_device(pdev);
7364 out_error:
7365         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7366                         "1401 Failed to enable pci device\n");
7367         return -ENODEV;
7368 }
7369
7370 /**
7371  * lpfc_disable_pci_dev - Disable a generic PCI device.
7372  * @phba: pointer to lpfc hba data structure.
7373  *
7374  * This routine is invoked to disable the PCI device that is common to all
7375  * PCI devices.
7376  **/
7377 static void
7378 lpfc_disable_pci_dev(struct lpfc_hba *phba)
7379 {
7380         struct pci_dev *pdev;
7381
7382         /* Obtain PCI device reference */
7383         if (!phba->pcidev)
7384                 return;
7385         else
7386                 pdev = phba->pcidev;
7387         /* Release PCI resource and disable PCI device */
7388         pci_release_mem_regions(pdev);
7389         pci_disable_device(pdev);
7390
7391         return;
7392 }
7393
7394 /**
7395  * lpfc_reset_hba - Reset a hba
7396  * @phba: pointer to lpfc hba data structure.
7397  *
7398  * This routine is invoked to reset a hba device. It brings the HBA
7399  * offline, performs a board restart, and then brings the board back
7400  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
7401  * on outstanding mailbox commands.
7402  **/
7403 void
7404 lpfc_reset_hba(struct lpfc_hba *phba)
7405 {
7406         /* If resets are disabled then set error state and return. */
7407         if (!phba->cfg_enable_hba_reset) {
7408                 phba->link_state = LPFC_HBA_ERROR;
7409                 return;
7410         }
7411
7412         /* If not LPFC_SLI_ACTIVE, force all IO to be flushed */
7413         if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) {
7414                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
7415         } else {
7416                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
7417                 lpfc_sli_flush_io_rings(phba);
7418         }
7419         lpfc_offline(phba);
7420         lpfc_sli_brdrestart(phba);
7421         lpfc_online(phba);
7422         lpfc_unblock_mgmt_io(phba);
7423 }
7424
7425 /**
7426  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
7427  * @phba: pointer to lpfc hba data structure.
7428  *
7429  * This function enables the PCI SR-IOV virtual functions to a physical
7430  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7431  * enable the number of virtual functions to the physical function. As
7432  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7433  * API call does not considered as an error condition for most of the device.
7434  **/
7435 uint16_t
7436 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
7437 {
7438         struct pci_dev *pdev = phba->pcidev;
7439         uint16_t nr_virtfn;
7440         int pos;
7441
7442         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
7443         if (pos == 0)
7444                 return 0;
7445
7446         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
7447         return nr_virtfn;
7448 }
7449
7450 /**
7451  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
7452  * @phba: pointer to lpfc hba data structure.
7453  * @nr_vfn: number of virtual functions to be enabled.
7454  *
7455  * This function enables the PCI SR-IOV virtual functions to a physical
7456  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
7457  * enable the number of virtual functions to the physical function. As
7458  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
7459  * API call does not considered as an error condition for most of the device.
7460  **/
7461 int
7462 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
7463 {
7464         struct pci_dev *pdev = phba->pcidev;
7465         uint16_t max_nr_vfn;
7466         int rc;
7467
7468         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
7469         if (nr_vfn > max_nr_vfn) {
7470                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
7471                                 "3057 Requested vfs (%d) greater than "
7472                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
7473                 return -EINVAL;
7474         }
7475
7476         rc = pci_enable_sriov(pdev, nr_vfn);
7477         if (rc) {
7478                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7479                                 "2806 Failed to enable sriov on this device "
7480                                 "with vfn number nr_vf:%d, rc:%d\n",
7481                                 nr_vfn, rc);
7482         } else
7483                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7484                                 "2807 Successful enable sriov on this device "
7485                                 "with vfn number nr_vf:%d\n", nr_vfn);
7486         return rc;
7487 }
7488
7489 static void
7490 lpfc_unblock_requests_work(struct work_struct *work)
7491 {
7492         struct lpfc_hba *phba = container_of(work, struct lpfc_hba,
7493                                              unblock_request_work);
7494
7495         lpfc_unblock_requests(phba);
7496 }
7497
7498 /**
7499  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
7500  * @phba: pointer to lpfc hba data structure.
7501  *
7502  * This routine is invoked to set up the driver internal resources before the
7503  * device specific resource setup to support the HBA device it attached to.
7504  *
7505  * Return codes
7506  *      0 - successful
7507  *      other values - error
7508  **/
7509 static int
7510 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
7511 {
7512         struct lpfc_sli *psli = &phba->sli;
7513
7514         /*
7515          * Driver resources common to all SLI revisions
7516          */
7517         atomic_set(&phba->fast_event_count, 0);
7518         atomic_set(&phba->dbg_log_idx, 0);
7519         atomic_set(&phba->dbg_log_cnt, 0);
7520         atomic_set(&phba->dbg_log_dmping, 0);
7521         spin_lock_init(&phba->hbalock);
7522
7523         /* Initialize port_list spinlock */
7524         spin_lock_init(&phba->port_list_lock);
7525         INIT_LIST_HEAD(&phba->port_list);
7526
7527         INIT_LIST_HEAD(&phba->work_list);
7528         init_waitqueue_head(&phba->wait_4_mlo_m_q);
7529
7530         /* Initialize the wait queue head for the kernel thread */
7531         init_waitqueue_head(&phba->work_waitq);
7532
7533         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7534                         "1403 Protocols supported %s %s %s\n",
7535                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ?
7536                                 "SCSI" : " "),
7537                         ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ?
7538                                 "NVME" : " "),
7539                         (phba->nvmet_support ? "NVMET" : " "));
7540
7541         /* Initialize the IO buffer list used by driver for SLI3 SCSI */
7542         spin_lock_init(&phba->scsi_buf_list_get_lock);
7543         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get);
7544         spin_lock_init(&phba->scsi_buf_list_put_lock);
7545         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put);
7546
7547         /* Initialize the fabric iocb list */
7548         INIT_LIST_HEAD(&phba->fabric_iocb_list);
7549
7550         /* Initialize list to save ELS buffers */
7551         INIT_LIST_HEAD(&phba->elsbuf);
7552
7553         /* Initialize FCF connection rec list */
7554         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
7555
7556         /* Initialize OAS configuration list */
7557         spin_lock_init(&phba->devicelock);
7558         INIT_LIST_HEAD(&phba->luns);
7559
7560         /* MBOX heartbeat timer */
7561         timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
7562         /* Fabric block timer */
7563         timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
7564         /* EA polling mode timer */
7565         timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
7566         /* Heartbeat timer */
7567         timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
7568
7569         INIT_DELAYED_WORK(&phba->eq_delay_work, lpfc_hb_eq_delay_work);
7570
7571         INIT_DELAYED_WORK(&phba->idle_stat_delay_work,
7572                           lpfc_idle_stat_delay_work);
7573         INIT_WORK(&phba->unblock_request_work, lpfc_unblock_requests_work);
7574         return 0;
7575 }
7576
7577 /**
7578  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev
7579  * @phba: pointer to lpfc hba data structure.
7580  *
7581  * This routine is invoked to set up the driver internal resources specific to
7582  * support the SLI-3 HBA device it attached to.
7583  *
7584  * Return codes
7585  * 0 - successful
7586  * other values - error
7587  **/
7588 static int
7589 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
7590 {
7591         int rc, entry_sz;
7592
7593         /*
7594          * Initialize timers used by driver
7595          */
7596
7597         /* FCP polling mode timer */
7598         timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
7599
7600         /* Host attention work mask setup */
7601         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
7602         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
7603
7604         /* Get all the module params for configuring this host */
7605         lpfc_get_cfgparam(phba);
7606         /* Set up phase-1 common device driver resources */
7607
7608         rc = lpfc_setup_driver_resource_phase1(phba);
7609         if (rc)
7610                 return -ENODEV;
7611
7612         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
7613                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
7614                 /* check for menlo minimum sg count */
7615                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
7616                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
7617         }
7618
7619         if (!phba->sli.sli3_ring)
7620                 phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING,
7621                                               sizeof(struct lpfc_sli_ring),
7622                                               GFP_KERNEL);
7623         if (!phba->sli.sli3_ring)
7624                 return -ENOMEM;
7625
7626         /*
7627          * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size
7628          * used to create the sg_dma_buf_pool must be dynamically calculated.
7629          */
7630
7631         if (phba->sli_rev == LPFC_SLI_REV4)
7632                 entry_sz = sizeof(struct sli4_sge);
7633         else
7634                 entry_sz = sizeof(struct ulp_bde64);
7635
7636         /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */
7637         if (phba->cfg_enable_bg) {
7638                 /*
7639                  * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd,
7640                  * the FCP rsp, and a BDE for each. Sice we have no control
7641                  * over how many protection data segments the SCSI Layer
7642                  * will hand us (ie: there could be one for every block
7643                  * in the IO), we just allocate enough BDEs to accomidate
7644                  * our max amount and we need to limit lpfc_sg_seg_cnt to
7645                  * minimize the risk of running out.
7646                  */
7647                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7648                         sizeof(struct fcp_rsp) +
7649                         (LPFC_MAX_SG_SEG_CNT * entry_sz);
7650
7651                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF)
7652                         phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF;
7653
7654                 /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */
7655                 phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT;
7656         } else {
7657                 /*
7658                  * The scsi_buf for a regular I/O will hold the FCP cmnd,
7659                  * the FCP rsp, a BDE for each, and a BDE for up to
7660                  * cfg_sg_seg_cnt data segments.
7661                  */
7662                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
7663                         sizeof(struct fcp_rsp) +
7664                         ((phba->cfg_sg_seg_cnt + 2) * entry_sz);
7665
7666                 /* Total BDEs in BPL for scsi_sg_list */
7667                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2;
7668         }
7669
7670         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
7671                         "9088 INIT sg_tablesize:%d dmabuf_size:%d total_bde:%d\n",
7672                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
7673                         phba->cfg_total_seg_cnt);
7674
7675         phba->max_vpi = LPFC_MAX_VPI;
7676         /* This will be set to correct value after config_port mbox */
7677         phba->max_vports = 0;
7678
7679         /*
7680          * Initialize the SLI Layer to run with lpfc HBAs.
7681          */
7682         lpfc_sli_setup(phba);
7683         lpfc_sli_queue_init(phba);
7684
7685         /* Allocate device driver memory */
7686         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
7687                 return -ENOMEM;
7688
7689         phba->lpfc_sg_dma_buf_pool =
7690                 dma_pool_create("lpfc_sg_dma_buf_pool",
7691                                 &phba->pcidev->dev, phba->cfg_sg_dma_buf_size,
7692                                 BPL_ALIGN_SZ, 0);
7693
7694         if (!phba->lpfc_sg_dma_buf_pool)
7695                 goto fail_free_mem;
7696
7697         phba->lpfc_cmd_rsp_buf_pool =
7698                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
7699                                         &phba->pcidev->dev,
7700                                         sizeof(struct fcp_cmnd) +
7701                                         sizeof(struct fcp_rsp),
7702                                         BPL_ALIGN_SZ, 0);
7703
7704         if (!phba->lpfc_cmd_rsp_buf_pool)
7705                 goto fail_free_dma_buf_pool;
7706
7707         /*
7708          * Enable sr-iov virtual functions if supported and configured
7709          * through the module parameter.
7710          */
7711         if (phba->cfg_sriov_nr_virtfn > 0) {
7712                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
7713                                                  phba->cfg_sriov_nr_virtfn);
7714                 if (rc) {
7715                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7716                                         "2808 Requested number of SR-IOV "
7717                                         "virtual functions (%d) is not "
7718                                         "supported\n",
7719                                         phba->cfg_sriov_nr_virtfn);
7720                         phba->cfg_sriov_nr_virtfn = 0;
7721                 }
7722         }
7723
7724         return 0;
7725
7726 fail_free_dma_buf_pool:
7727         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
7728         phba->lpfc_sg_dma_buf_pool = NULL;
7729 fail_free_mem:
7730         lpfc_mem_free(phba);
7731         return -ENOMEM;
7732 }
7733
7734 /**
7735  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
7736  * @phba: pointer to lpfc hba data structure.
7737  *
7738  * This routine is invoked to unset the driver internal resources set up
7739  * specific for supporting the SLI-3 HBA device it attached to.
7740  **/
7741 static void
7742 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
7743 {
7744         /* Free device driver memory allocated */
7745         lpfc_mem_free_all(phba);
7746
7747         return;
7748 }
7749
7750 /**
7751  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
7752  * @phba: pointer to lpfc hba data structure.
7753  *
7754  * This routine is invoked to set up the driver internal resources specific to
7755  * support the SLI-4 HBA device it attached to.
7756  *
7757  * Return codes
7758  *      0 - successful
7759  *      other values - error
7760  **/
7761 static int
7762 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
7763 {
7764         LPFC_MBOXQ_t *mboxq;
7765         MAILBOX_t *mb;
7766         int rc, i, max_buf_size;
7767         int longs;
7768         int extra;
7769         uint64_t wwn;
7770         u32 if_type;
7771         u32 if_fam;
7772
7773         phba->sli4_hba.num_present_cpu = lpfc_present_cpu;
7774         phba->sli4_hba.num_possible_cpu = cpumask_last(cpu_possible_mask) + 1;
7775         phba->sli4_hba.curr_disp_cpu = 0;
7776
7777         /* Get all the module params for configuring this host */
7778         lpfc_get_cfgparam(phba);
7779
7780         /* Set up phase-1 common device driver resources */
7781         rc = lpfc_setup_driver_resource_phase1(phba);
7782         if (rc)
7783                 return -ENODEV;
7784
7785         /* Before proceed, wait for POST done and device ready */
7786         rc = lpfc_sli4_post_status_check(phba);
7787         if (rc)
7788                 return -ENODEV;
7789
7790         /* Allocate all driver workqueues here */
7791
7792         /* The lpfc_wq workqueue for deferred irq use */
7793         phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0);
7794
7795         /*
7796          * Initialize timers used by driver
7797          */
7798
7799         timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
7800
7801         /* FCF rediscover timer */
7802         timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
7803
7804         /* CMF congestion timer */
7805         hrtimer_init(&phba->cmf_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
7806         phba->cmf_timer.function = lpfc_cmf_timer;
7807
7808         /*
7809          * Control structure for handling external multi-buffer mailbox
7810          * command pass-through.
7811          */
7812         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
7813                 sizeof(struct lpfc_mbox_ext_buf_ctx));
7814         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
7815
7816         phba->max_vpi = LPFC_MAX_VPI;
7817
7818         /* This will be set to correct value after the read_config mbox */
7819         phba->max_vports = 0;
7820
7821         /* Program the default value of vlan_id and fc_map */
7822         phba->valid_vlan = 0;
7823         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
7824         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
7825         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
7826
7827         /*
7828          * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands
7829          * we will associate a new ring, for each EQ/CQ/WQ tuple.
7830          * The WQ create will allocate the ring.
7831          */
7832
7833         /* Initialize buffer queue management fields */
7834         INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list);
7835         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
7836         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
7837
7838         /* for VMID idle timeout if VMID is enabled */
7839         if (lpfc_is_vmid_enabled(phba))
7840                 timer_setup(&phba->inactive_vmid_poll, lpfc_vmid_poll, 0);
7841
7842         /*
7843          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
7844          */
7845         /* Initialize the Abort buffer list used by driver */
7846         spin_lock_init(&phba->sli4_hba.abts_io_buf_list_lock);
7847         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_io_buf_list);
7848
7849         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
7850                 /* Initialize the Abort nvme buffer list used by driver */
7851                 spin_lock_init(&phba->sli4_hba.abts_nvmet_buf_list_lock);
7852                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
7853                 INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list);
7854                 spin_lock_init(&phba->sli4_hba.t_active_list_lock);
7855                 INIT_LIST_HEAD(&phba->sli4_hba.t_active_ctx_list);
7856         }
7857
7858         /* This abort list used by worker thread */
7859         spin_lock_init(&phba->sli4_hba.sgl_list_lock);
7860         spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock);
7861         spin_lock_init(&phba->sli4_hba.asynce_list_lock);
7862         spin_lock_init(&phba->sli4_hba.els_xri_abrt_list_lock);
7863
7864         /*
7865          * Initialize driver internal slow-path work queues
7866          */
7867
7868         /* Driver internel slow-path CQ Event pool */
7869         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
7870         /* Response IOCB work queue list */
7871         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
7872         /* Asynchronous event CQ Event work queue list */
7873         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
7874         /* Slow-path XRI aborted CQ Event work queue list */
7875         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
7876         /* Receive queue CQ Event work queue list */
7877         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
7878
7879         /* Initialize extent block lists. */
7880         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
7881         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
7882         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
7883         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
7884
7885         /* Initialize mboxq lists. If the early init routines fail
7886          * these lists need to be correctly initialized.
7887          */
7888         INIT_LIST_HEAD(&phba->sli.mboxq);
7889         INIT_LIST_HEAD(&phba->sli.mboxq_cmpl);
7890
7891         /* initialize optic_state to 0xFF */
7892         phba->sli4_hba.lnk_info.optic_state = 0xff;
7893
7894         /* Allocate device driver memory */
7895         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
7896         if (rc)
7897                 goto out_destroy_workqueue;
7898
7899         /* IF Type 2 ports get initialized now. */
7900         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >=
7901             LPFC_SLI_INTF_IF_TYPE_2) {
7902                 rc = lpfc_pci_function_reset(phba);
7903                 if (unlikely(rc)) {
7904                         rc = -ENODEV;
7905                         goto out_free_mem;
7906                 }
7907                 phba->temp_sensor_support = 1;
7908         }
7909
7910         /* Create the bootstrap mailbox command */
7911         rc = lpfc_create_bootstrap_mbox(phba);
7912         if (unlikely(rc))
7913                 goto out_free_mem;
7914
7915         /* Set up the host's endian order with the device. */
7916         rc = lpfc_setup_endian_order(phba);
7917         if (unlikely(rc))
7918                 goto out_free_bsmbx;
7919
7920         /* Set up the hba's configuration parameters. */
7921         rc = lpfc_sli4_read_config(phba);
7922         if (unlikely(rc))
7923                 goto out_free_bsmbx;
7924         rc = lpfc_mem_alloc_active_rrq_pool_s4(phba);
7925         if (unlikely(rc))
7926                 goto out_free_bsmbx;
7927
7928         /* IF Type 0 ports get initialized now. */
7929         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
7930             LPFC_SLI_INTF_IF_TYPE_0) {
7931                 rc = lpfc_pci_function_reset(phba);
7932                 if (unlikely(rc))
7933                         goto out_free_bsmbx;
7934         }
7935
7936         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7937                                                        GFP_KERNEL);
7938         if (!mboxq) {
7939                 rc = -ENOMEM;
7940                 goto out_free_bsmbx;
7941         }
7942
7943         /* Check for NVMET being configured */
7944         phba->nvmet_support = 0;
7945         if (lpfc_enable_nvmet_cnt) {
7946
7947                 /* First get WWN of HBA instance */
7948                 lpfc_read_nv(phba, mboxq);
7949                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7950                 if (rc != MBX_SUCCESS) {
7951                         lpfc_printf_log(phba, KERN_ERR,
7952                                         LOG_TRACE_EVENT,
7953                                         "6016 Mailbox failed , mbxCmd x%x "
7954                                         "READ_NV, mbxStatus x%x\n",
7955                                         bf_get(lpfc_mqe_command, &mboxq->u.mqe),
7956                                         bf_get(lpfc_mqe_status, &mboxq->u.mqe));
7957                         mempool_free(mboxq, phba->mbox_mem_pool);
7958                         rc = -EIO;
7959                         goto out_free_bsmbx;
7960                 }
7961                 mb = &mboxq->u.mb;
7962                 memcpy(&wwn, (char *)mb->un.varRDnvp.nodename,
7963                        sizeof(uint64_t));
7964                 wwn = cpu_to_be64(wwn);
7965                 phba->sli4_hba.wwnn.u.name = wwn;
7966                 memcpy(&wwn, (char *)mb->un.varRDnvp.portname,
7967                        sizeof(uint64_t));
7968                 /* wwn is WWPN of HBA instance */
7969                 wwn = cpu_to_be64(wwn);
7970                 phba->sli4_hba.wwpn.u.name = wwn;
7971
7972                 /* Check to see if it matches any module parameter */
7973                 for (i = 0; i < lpfc_enable_nvmet_cnt; i++) {
7974                         if (wwn == lpfc_enable_nvmet[i]) {
7975 #if (IS_ENABLED(CONFIG_NVME_TARGET_FC))
7976                                 if (lpfc_nvmet_mem_alloc(phba))
7977                                         break;
7978
7979                                 phba->nvmet_support = 1; /* a match */
7980
7981                                 lpfc_printf_log(phba, KERN_ERR,
7982                                                 LOG_TRACE_EVENT,
7983                                                 "6017 NVME Target %016llx\n",
7984                                                 wwn);
7985 #else
7986                                 lpfc_printf_log(phba, KERN_ERR,
7987                                                 LOG_TRACE_EVENT,
7988                                                 "6021 Can't enable NVME Target."
7989                                                 " NVME_TARGET_FC infrastructure"
7990                                                 " is not in kernel\n");
7991 #endif
7992                                 /* Not supported for NVMET */
7993                                 phba->cfg_xri_rebalancing = 0;
7994                                 if (phba->irq_chann_mode == NHT_MODE) {
7995                                         phba->cfg_irq_chann =
7996                                                 phba->sli4_hba.num_present_cpu;
7997                                         phba->cfg_hdw_queue =
7998                                                 phba->sli4_hba.num_present_cpu;
7999                                         phba->irq_chann_mode = NORMAL_MODE;
8000                                 }
8001                                 break;
8002                         }
8003                 }
8004         }
8005
8006         lpfc_nvme_mod_param_dep(phba);
8007
8008         /*
8009          * Get sli4 parameters that override parameters from Port capabilities.
8010          * If this call fails, it isn't critical unless the SLI4 parameters come
8011          * back in conflict.
8012          */
8013         rc = lpfc_get_sli4_parameters(phba, mboxq);
8014         if (rc) {
8015                 if_type = bf_get(lpfc_sli_intf_if_type,
8016                                  &phba->sli4_hba.sli_intf);
8017                 if_fam = bf_get(lpfc_sli_intf_sli_family,
8018                                 &phba->sli4_hba.sli_intf);
8019                 if (phba->sli4_hba.extents_in_use &&
8020                     phba->sli4_hba.rpi_hdrs_in_use) {
8021                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8022                                         "2999 Unsupported SLI4 Parameters "
8023                                         "Extents and RPI headers enabled.\n");
8024                         if (if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8025                             if_fam ==  LPFC_SLI_INTF_FAMILY_BE2) {
8026                                 mempool_free(mboxq, phba->mbox_mem_pool);
8027                                 rc = -EIO;
8028                                 goto out_free_bsmbx;
8029                         }
8030                 }
8031                 if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 &&
8032                       if_fam == LPFC_SLI_INTF_FAMILY_BE2)) {
8033                         mempool_free(mboxq, phba->mbox_mem_pool);
8034                         rc = -EIO;
8035                         goto out_free_bsmbx;
8036                 }
8037         }
8038
8039         /*
8040          * 1 for cmd, 1 for rsp, NVME adds an extra one
8041          * for boundary conditions in its max_sgl_segment template.
8042          */
8043         extra = 2;
8044         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
8045                 extra++;
8046
8047         /*
8048          * It doesn't matter what family our adapter is in, we are
8049          * limited to 2 Pages, 512 SGEs, for our SGL.
8050          * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp
8051          */
8052         max_buf_size = (2 * SLI4_PAGE_SIZE);
8053
8054         /*
8055          * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size
8056          * used to create the sg_dma_buf_pool must be calculated.
8057          */
8058         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) {
8059                 /* Both cfg_enable_bg and cfg_external_dif code paths */
8060
8061                 /*
8062                  * The scsi_buf for a T10-DIF I/O holds the FCP cmnd,
8063                  * the FCP rsp, and a SGE. Sice we have no control
8064                  * over how many protection segments the SCSI Layer
8065                  * will hand us (ie: there could be one for every block
8066                  * in the IO), just allocate enough SGEs to accomidate
8067                  * our max amount and we need to limit lpfc_sg_seg_cnt
8068                  * to minimize the risk of running out.
8069                  */
8070                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8071                                 sizeof(struct fcp_rsp) + max_buf_size;
8072
8073                 /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */
8074                 phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT;
8075
8076                 /*
8077                  * If supporting DIF, reduce the seg count for scsi to
8078                  * allow room for the DIF sges.
8079                  */
8080                 if (phba->cfg_enable_bg &&
8081                     phba->cfg_sg_seg_cnt > LPFC_MAX_BG_SLI4_SEG_CNT_DIF)
8082                         phba->cfg_scsi_seg_cnt = LPFC_MAX_BG_SLI4_SEG_CNT_DIF;
8083                 else
8084                         phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8085
8086         } else {
8087                 /*
8088                  * The scsi_buf for a regular I/O holds the FCP cmnd,
8089                  * the FCP rsp, a SGE for each, and a SGE for up to
8090                  * cfg_sg_seg_cnt data segments.
8091                  */
8092                 phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
8093                                 sizeof(struct fcp_rsp) +
8094                                 ((phba->cfg_sg_seg_cnt + extra) *
8095                                 sizeof(struct sli4_sge));
8096
8097                 /* Total SGEs for scsi_sg_list */
8098                 phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra;
8099                 phba->cfg_scsi_seg_cnt = phba->cfg_sg_seg_cnt;
8100
8101                 /*
8102                  * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only
8103                  * need to post 1 page for the SGL.
8104                  */
8105         }
8106
8107         if (phba->cfg_xpsgl && !phba->nvmet_support)
8108                 phba->cfg_sg_dma_buf_size = LPFC_DEFAULT_XPSGL_SIZE;
8109         else if (phba->cfg_sg_dma_buf_size  <= LPFC_MIN_SG_SLI4_BUF_SZ)
8110                 phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ;
8111         else
8112                 phba->cfg_sg_dma_buf_size =
8113                                 SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size);
8114
8115         phba->border_sge_num = phba->cfg_sg_dma_buf_size /
8116                                sizeof(struct sli4_sge);
8117
8118         /* Limit to LPFC_MAX_NVME_SEG_CNT for NVME. */
8119         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
8120                 if (phba->cfg_sg_seg_cnt > LPFC_MAX_NVME_SEG_CNT) {
8121                         lpfc_printf_log(phba, KERN_INFO, LOG_NVME | LOG_INIT,
8122                                         "6300 Reducing NVME sg segment "
8123                                         "cnt to %d\n",
8124                                         LPFC_MAX_NVME_SEG_CNT);
8125                         phba->cfg_nvme_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
8126                 } else
8127                         phba->cfg_nvme_seg_cnt = phba->cfg_sg_seg_cnt;
8128         }
8129
8130         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP,
8131                         "9087 sg_seg_cnt:%d dmabuf_size:%d "
8132                         "total:%d scsi:%d nvme:%d\n",
8133                         phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size,
8134                         phba->cfg_total_seg_cnt,  phba->cfg_scsi_seg_cnt,
8135                         phba->cfg_nvme_seg_cnt);
8136
8137         if (phba->cfg_sg_dma_buf_size < SLI4_PAGE_SIZE)
8138                 i = phba->cfg_sg_dma_buf_size;
8139         else
8140                 i = SLI4_PAGE_SIZE;
8141
8142         phba->lpfc_sg_dma_buf_pool =
8143                         dma_pool_create("lpfc_sg_dma_buf_pool",
8144                                         &phba->pcidev->dev,
8145                                         phba->cfg_sg_dma_buf_size,
8146                                         i, 0);
8147         if (!phba->lpfc_sg_dma_buf_pool)
8148                 goto out_free_bsmbx;
8149
8150         phba->lpfc_cmd_rsp_buf_pool =
8151                         dma_pool_create("lpfc_cmd_rsp_buf_pool",
8152                                         &phba->pcidev->dev,
8153                                         sizeof(struct fcp_cmnd) +
8154                                         sizeof(struct fcp_rsp),
8155                                         i, 0);
8156         if (!phba->lpfc_cmd_rsp_buf_pool)
8157                 goto out_free_sg_dma_buf;
8158
8159         mempool_free(mboxq, phba->mbox_mem_pool);
8160
8161         /* Verify OAS is supported */
8162         lpfc_sli4_oas_verify(phba);
8163
8164         /* Verify RAS support on adapter */
8165         lpfc_sli4_ras_init(phba);
8166
8167         /* Verify all the SLI4 queues */
8168         rc = lpfc_sli4_queue_verify(phba);
8169         if (rc)
8170                 goto out_free_cmd_rsp_buf;
8171
8172         /* Create driver internal CQE event pool */
8173         rc = lpfc_sli4_cq_event_pool_create(phba);
8174         if (rc)
8175                 goto out_free_cmd_rsp_buf;
8176
8177         /* Initialize sgl lists per host */
8178         lpfc_init_sgl_list(phba);
8179
8180         /* Allocate and initialize active sgl array */
8181         rc = lpfc_init_active_sgl_array(phba);
8182         if (rc) {
8183                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8184                                 "1430 Failed to initialize sgl list.\n");
8185                 goto out_destroy_cq_event_pool;
8186         }
8187         rc = lpfc_sli4_init_rpi_hdrs(phba);
8188         if (rc) {
8189                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8190                                 "1432 Failed to initialize rpi headers.\n");
8191                 goto out_free_active_sgl;
8192         }
8193
8194         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
8195         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
8196         phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long),
8197                                          GFP_KERNEL);
8198         if (!phba->fcf.fcf_rr_bmask) {
8199                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8200                                 "2759 Failed allocate memory for FCF round "
8201                                 "robin failover bmask\n");
8202                 rc = -ENOMEM;
8203                 goto out_remove_rpi_hdrs;
8204         }
8205
8206         phba->sli4_hba.hba_eq_hdl = kcalloc(phba->cfg_irq_chann,
8207                                             sizeof(struct lpfc_hba_eq_hdl),
8208                                             GFP_KERNEL);
8209         if (!phba->sli4_hba.hba_eq_hdl) {
8210                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8211                                 "2572 Failed allocate memory for "
8212                                 "fast-path per-EQ handle array\n");
8213                 rc = -ENOMEM;
8214                 goto out_free_fcf_rr_bmask;
8215         }
8216
8217         phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_possible_cpu,
8218                                         sizeof(struct lpfc_vector_map_info),
8219                                         GFP_KERNEL);
8220         if (!phba->sli4_hba.cpu_map) {
8221                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8222                                 "3327 Failed allocate memory for msi-x "
8223                                 "interrupt vector mapping\n");
8224                 rc = -ENOMEM;
8225                 goto out_free_hba_eq_hdl;
8226         }
8227
8228         phba->sli4_hba.eq_info = alloc_percpu(struct lpfc_eq_intr_info);
8229         if (!phba->sli4_hba.eq_info) {
8230                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8231                                 "3321 Failed allocation for per_cpu stats\n");
8232                 rc = -ENOMEM;
8233                 goto out_free_hba_cpu_map;
8234         }
8235
8236         phba->sli4_hba.idle_stat = kcalloc(phba->sli4_hba.num_possible_cpu,
8237                                            sizeof(*phba->sli4_hba.idle_stat),
8238                                            GFP_KERNEL);
8239         if (!phba->sli4_hba.idle_stat) {
8240                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8241                                 "3390 Failed allocation for idle_stat\n");
8242                 rc = -ENOMEM;
8243                 goto out_free_hba_eq_info;
8244         }
8245
8246 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8247         phba->sli4_hba.c_stat = alloc_percpu(struct lpfc_hdwq_stat);
8248         if (!phba->sli4_hba.c_stat) {
8249                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8250                                 "3332 Failed allocating per cpu hdwq stats\n");
8251                 rc = -ENOMEM;
8252                 goto out_free_hba_idle_stat;
8253         }
8254 #endif
8255
8256         phba->cmf_stat = alloc_percpu(struct lpfc_cgn_stat);
8257         if (!phba->cmf_stat) {
8258                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8259                                 "3331 Failed allocating per cpu cgn stats\n");
8260                 rc = -ENOMEM;
8261                 goto out_free_hba_hdwq_info;
8262         }
8263
8264         /*
8265          * Enable sr-iov virtual functions if supported and configured
8266          * through the module parameter.
8267          */
8268         if (phba->cfg_sriov_nr_virtfn > 0) {
8269                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
8270                                                  phba->cfg_sriov_nr_virtfn);
8271                 if (rc) {
8272                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8273                                         "3020 Requested number of SR-IOV "
8274                                         "virtual functions (%d) is not "
8275                                         "supported\n",
8276                                         phba->cfg_sriov_nr_virtfn);
8277                         phba->cfg_sriov_nr_virtfn = 0;
8278                 }
8279         }
8280
8281         return 0;
8282
8283 out_free_hba_hdwq_info:
8284 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8285         free_percpu(phba->sli4_hba.c_stat);
8286 out_free_hba_idle_stat:
8287 #endif
8288         kfree(phba->sli4_hba.idle_stat);
8289 out_free_hba_eq_info:
8290         free_percpu(phba->sli4_hba.eq_info);
8291 out_free_hba_cpu_map:
8292         kfree(phba->sli4_hba.cpu_map);
8293 out_free_hba_eq_hdl:
8294         kfree(phba->sli4_hba.hba_eq_hdl);
8295 out_free_fcf_rr_bmask:
8296         kfree(phba->fcf.fcf_rr_bmask);
8297 out_remove_rpi_hdrs:
8298         lpfc_sli4_remove_rpi_hdrs(phba);
8299 out_free_active_sgl:
8300         lpfc_free_active_sgl(phba);
8301 out_destroy_cq_event_pool:
8302         lpfc_sli4_cq_event_pool_destroy(phba);
8303 out_free_cmd_rsp_buf:
8304         dma_pool_destroy(phba->lpfc_cmd_rsp_buf_pool);
8305         phba->lpfc_cmd_rsp_buf_pool = NULL;
8306 out_free_sg_dma_buf:
8307         dma_pool_destroy(phba->lpfc_sg_dma_buf_pool);
8308         phba->lpfc_sg_dma_buf_pool = NULL;
8309 out_free_bsmbx:
8310         lpfc_destroy_bootstrap_mbox(phba);
8311 out_free_mem:
8312         lpfc_mem_free(phba);
8313 out_destroy_workqueue:
8314         destroy_workqueue(phba->wq);
8315         phba->wq = NULL;
8316         return rc;
8317 }
8318
8319 /**
8320  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
8321  * @phba: pointer to lpfc hba data structure.
8322  *
8323  * This routine is invoked to unset the driver internal resources set up
8324  * specific for supporting the SLI-4 HBA device it attached to.
8325  **/
8326 static void
8327 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
8328 {
8329         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
8330
8331         free_percpu(phba->sli4_hba.eq_info);
8332 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
8333         free_percpu(phba->sli4_hba.c_stat);
8334 #endif
8335         free_percpu(phba->cmf_stat);
8336         kfree(phba->sli4_hba.idle_stat);
8337
8338         /* Free memory allocated for msi-x interrupt vector to CPU mapping */
8339         kfree(phba->sli4_hba.cpu_map);
8340         phba->sli4_hba.num_possible_cpu = 0;
8341         phba->sli4_hba.num_present_cpu = 0;
8342         phba->sli4_hba.curr_disp_cpu = 0;
8343         cpumask_clear(&phba->sli4_hba.irq_aff_mask);
8344
8345         /* Free memory allocated for fast-path work queue handles */
8346         kfree(phba->sli4_hba.hba_eq_hdl);
8347
8348         /* Free the allocated rpi headers. */
8349         lpfc_sli4_remove_rpi_hdrs(phba);
8350         lpfc_sli4_remove_rpis(phba);
8351
8352         /* Free eligible FCF index bmask */
8353         kfree(phba->fcf.fcf_rr_bmask);
8354
8355         /* Free the ELS sgl list */
8356         lpfc_free_active_sgl(phba);
8357         lpfc_free_els_sgl_list(phba);
8358         lpfc_free_nvmet_sgl_list(phba);
8359
8360         /* Free the completion queue EQ event pool */
8361         lpfc_sli4_cq_event_release_all(phba);
8362         lpfc_sli4_cq_event_pool_destroy(phba);
8363
8364         /* Release resource identifiers. */
8365         lpfc_sli4_dealloc_resource_identifiers(phba);
8366
8367         /* Free the bsmbx region. */
8368         lpfc_destroy_bootstrap_mbox(phba);
8369
8370         /* Free the SLI Layer memory with SLI4 HBAs */
8371         lpfc_mem_free_all(phba);
8372
8373         /* Free the current connect table */
8374         list_for_each_entry_safe(conn_entry, next_conn_entry,
8375                 &phba->fcf_conn_rec_list, list) {
8376                 list_del_init(&conn_entry->list);
8377                 kfree(conn_entry);
8378         }
8379
8380         return;
8381 }
8382
8383 /**
8384  * lpfc_init_api_table_setup - Set up init api function jump table
8385  * @phba: The hba struct for which this call is being executed.
8386  * @dev_grp: The HBA PCI-Device group number.
8387  *
8388  * This routine sets up the device INIT interface API function jump table
8389  * in @phba struct.
8390  *
8391  * Returns: 0 - success, -ENODEV - failure.
8392  **/
8393 int
8394 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8395 {
8396         phba->lpfc_hba_init_link = lpfc_hba_init_link;
8397         phba->lpfc_hba_down_link = lpfc_hba_down_link;
8398         phba->lpfc_selective_reset = lpfc_selective_reset;
8399         switch (dev_grp) {
8400         case LPFC_PCI_DEV_LP:
8401                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
8402                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
8403                 phba->lpfc_stop_port = lpfc_stop_port_s3;
8404                 break;
8405         case LPFC_PCI_DEV_OC:
8406                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
8407                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
8408                 phba->lpfc_stop_port = lpfc_stop_port_s4;
8409                 break;
8410         default:
8411                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8412                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
8413                                 dev_grp);
8414                 return -ENODEV;
8415         }
8416         return 0;
8417 }
8418
8419 /**
8420  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
8421  * @phba: pointer to lpfc hba data structure.
8422  *
8423  * This routine is invoked to set up the driver internal resources after the
8424  * device specific resource setup to support the HBA device it attached to.
8425  *
8426  * Return codes
8427  *      0 - successful
8428  *      other values - error
8429  **/
8430 static int
8431 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
8432 {
8433         int error;
8434
8435         /* Startup the kernel thread for this host adapter. */
8436         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8437                                           "lpfc_worker_%d", phba->brd_no);
8438         if (IS_ERR(phba->worker_thread)) {
8439                 error = PTR_ERR(phba->worker_thread);
8440                 return error;
8441         }
8442
8443         return 0;
8444 }
8445
8446 /**
8447  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
8448  * @phba: pointer to lpfc hba data structure.
8449  *
8450  * This routine is invoked to unset the driver internal resources set up after
8451  * the device specific resource setup for supporting the HBA device it
8452  * attached to.
8453  **/
8454 static void
8455 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
8456 {
8457         if (phba->wq) {
8458                 flush_workqueue(phba->wq);
8459                 destroy_workqueue(phba->wq);
8460                 phba->wq = NULL;
8461         }
8462
8463         /* Stop kernel worker thread */
8464         if (phba->worker_thread)
8465                 kthread_stop(phba->worker_thread);
8466 }
8467
8468 /**
8469  * lpfc_free_iocb_list - Free iocb list.
8470  * @phba: pointer to lpfc hba data structure.
8471  *
8472  * This routine is invoked to free the driver's IOCB list and memory.
8473  **/
8474 void
8475 lpfc_free_iocb_list(struct lpfc_hba *phba)
8476 {
8477         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
8478
8479         spin_lock_irq(&phba->hbalock);
8480         list_for_each_entry_safe(iocbq_entry, iocbq_next,
8481                                  &phba->lpfc_iocb_list, list) {
8482                 list_del(&iocbq_entry->list);
8483                 kfree(iocbq_entry);
8484                 phba->total_iocbq_bufs--;
8485         }
8486         spin_unlock_irq(&phba->hbalock);
8487
8488         return;
8489 }
8490
8491 /**
8492  * lpfc_init_iocb_list - Allocate and initialize iocb list.
8493  * @phba: pointer to lpfc hba data structure.
8494  * @iocb_count: number of requested iocbs
8495  *
8496  * This routine is invoked to allocate and initizlize the driver's IOCB
8497  * list and set up the IOCB tag array accordingly.
8498  *
8499  * Return codes
8500  *      0 - successful
8501  *      other values - error
8502  **/
8503 int
8504 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
8505 {
8506         struct lpfc_iocbq *iocbq_entry = NULL;
8507         uint16_t iotag;
8508         int i;
8509
8510         /* Initialize and populate the iocb list per host.  */
8511         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
8512         for (i = 0; i < iocb_count; i++) {
8513                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
8514                 if (iocbq_entry == NULL) {
8515                         printk(KERN_ERR "%s: only allocated %d iocbs of "
8516                                 "expected %d count. Unloading driver.\n",
8517                                 __func__, i, iocb_count);
8518                         goto out_free_iocbq;
8519                 }
8520
8521                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
8522                 if (iotag == 0) {
8523                         kfree(iocbq_entry);
8524                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
8525                                 "Unloading driver.\n", __func__);
8526                         goto out_free_iocbq;
8527                 }
8528                 iocbq_entry->sli4_lxritag = NO_XRI;
8529                 iocbq_entry->sli4_xritag = NO_XRI;
8530
8531                 spin_lock_irq(&phba->hbalock);
8532                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
8533                 phba->total_iocbq_bufs++;
8534                 spin_unlock_irq(&phba->hbalock);
8535         }
8536
8537         return 0;
8538
8539 out_free_iocbq:
8540         lpfc_free_iocb_list(phba);
8541
8542         return -ENOMEM;
8543 }
8544
8545 /**
8546  * lpfc_free_sgl_list - Free a given sgl list.
8547  * @phba: pointer to lpfc hba data structure.
8548  * @sglq_list: pointer to the head of sgl list.
8549  *
8550  * This routine is invoked to free a give sgl list and memory.
8551  **/
8552 void
8553 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
8554 {
8555         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8556
8557         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
8558                 list_del(&sglq_entry->list);
8559                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
8560                 kfree(sglq_entry);
8561         }
8562 }
8563
8564 /**
8565  * lpfc_free_els_sgl_list - Free els sgl list.
8566  * @phba: pointer to lpfc hba data structure.
8567  *
8568  * This routine is invoked to free the driver's els sgl list and memory.
8569  **/
8570 static void
8571 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
8572 {
8573         LIST_HEAD(sglq_list);
8574
8575         /* Retrieve all els sgls from driver list */
8576         spin_lock_irq(&phba->sli4_hba.sgl_list_lock);
8577         list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list);
8578         spin_unlock_irq(&phba->sli4_hba.sgl_list_lock);
8579
8580         /* Now free the sgl list */
8581         lpfc_free_sgl_list(phba, &sglq_list);
8582 }
8583
8584 /**
8585  * lpfc_free_nvmet_sgl_list - Free nvmet sgl list.
8586  * @phba: pointer to lpfc hba data structure.
8587  *
8588  * This routine is invoked to free the driver's nvmet sgl list and memory.
8589  **/
8590 static void
8591 lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba)
8592 {
8593         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
8594         LIST_HEAD(sglq_list);
8595
8596         /* Retrieve all nvmet sgls from driver list */
8597         spin_lock_irq(&phba->hbalock);
8598         spin_lock(&phba->sli4_hba.sgl_list_lock);
8599         list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list);
8600         spin_unlock(&phba->sli4_hba.sgl_list_lock);
8601         spin_unlock_irq(&phba->hbalock);
8602
8603         /* Now free the sgl list */
8604         list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) {
8605                 list_del(&sglq_entry->list);
8606                 lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys);
8607                 kfree(sglq_entry);
8608         }
8609
8610         /* Update the nvmet_xri_cnt to reflect no current sgls.
8611          * The next initialization cycle sets the count and allocates
8612          * the sgls over again.
8613          */
8614         phba->sli4_hba.nvmet_xri_cnt = 0;
8615 }
8616
8617 /**
8618  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
8619  * @phba: pointer to lpfc hba data structure.
8620  *
8621  * This routine is invoked to allocate the driver's active sgl memory.
8622  * This array will hold the sglq_entry's for active IOs.
8623  **/
8624 static int
8625 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
8626 {
8627         int size;
8628         size = sizeof(struct lpfc_sglq *);
8629         size *= phba->sli4_hba.max_cfg_param.max_xri;
8630
8631         phba->sli4_hba.lpfc_sglq_active_list =
8632                 kzalloc(size, GFP_KERNEL);
8633         if (!phba->sli4_hba.lpfc_sglq_active_list)
8634                 return -ENOMEM;
8635         return 0;
8636 }
8637
8638 /**
8639  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
8640  * @phba: pointer to lpfc hba data structure.
8641  *
8642  * This routine is invoked to walk through the array of active sglq entries
8643  * and free all of the resources.
8644  * This is just a place holder for now.
8645  **/
8646 static void
8647 lpfc_free_active_sgl(struct lpfc_hba *phba)
8648 {
8649         kfree(phba->sli4_hba.lpfc_sglq_active_list);
8650 }
8651
8652 /**
8653  * lpfc_init_sgl_list - Allocate and initialize sgl list.
8654  * @phba: pointer to lpfc hba data structure.
8655  *
8656  * This routine is invoked to allocate and initizlize the driver's sgl
8657  * list and set up the sgl xritag tag array accordingly.
8658  *
8659  **/
8660 static void
8661 lpfc_init_sgl_list(struct lpfc_hba *phba)
8662 {
8663         /* Initialize and populate the sglq list per host/VF. */
8664         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list);
8665         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8666         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list);
8667         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
8668
8669         /* els xri-sgl book keeping */
8670         phba->sli4_hba.els_xri_cnt = 0;
8671
8672         /* nvme xri-buffer book keeping */
8673         phba->sli4_hba.io_xri_cnt = 0;
8674 }
8675
8676 /**
8677  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
8678  * @phba: pointer to lpfc hba data structure.
8679  *
8680  * This routine is invoked to post rpi header templates to the
8681  * port for those SLI4 ports that do not support extents.  This routine
8682  * posts a PAGE_SIZE memory region to the port to hold up to
8683  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
8684  * and should be called only when interrupts are disabled.
8685  *
8686  * Return codes
8687  *      0 - successful
8688  *      -ERROR - otherwise.
8689  **/
8690 int
8691 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
8692 {
8693         int rc = 0;
8694         struct lpfc_rpi_hdr *rpi_hdr;
8695
8696         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
8697         if (!phba->sli4_hba.rpi_hdrs_in_use)
8698                 return rc;
8699         if (phba->sli4_hba.extents_in_use)
8700                 return -EIO;
8701
8702         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
8703         if (!rpi_hdr) {
8704                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
8705                                 "0391 Error during rpi post operation\n");
8706                 lpfc_sli4_remove_rpis(phba);
8707                 rc = -ENODEV;
8708         }
8709
8710         return rc;
8711 }
8712
8713 /**
8714  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
8715  * @phba: pointer to lpfc hba data structure.
8716  *
8717  * This routine is invoked to allocate a single 4KB memory region to
8718  * support rpis and stores them in the phba.  This single region
8719  * provides support for up to 64 rpis.  The region is used globally
8720  * by the device.
8721  *
8722  * Returns:
8723  *   A valid rpi hdr on success.
8724  *   A NULL pointer on any failure.
8725  **/
8726 struct lpfc_rpi_hdr *
8727 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
8728 {
8729         uint16_t rpi_limit, curr_rpi_range;
8730         struct lpfc_dmabuf *dmabuf;
8731         struct lpfc_rpi_hdr *rpi_hdr;
8732
8733         /*
8734          * If the SLI4 port supports extents, posting the rpi header isn't
8735          * required.  Set the expected maximum count and let the actual value
8736          * get set when extents are fully allocated.
8737          */
8738         if (!phba->sli4_hba.rpi_hdrs_in_use)
8739                 return NULL;
8740         if (phba->sli4_hba.extents_in_use)
8741                 return NULL;
8742
8743         /* The limit on the logical index is just the max_rpi count. */
8744         rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi;
8745
8746         spin_lock_irq(&phba->hbalock);
8747         /*
8748          * Establish the starting RPI in this header block.  The starting
8749          * rpi is normalized to a zero base because the physical rpi is
8750          * port based.
8751          */
8752         curr_rpi_range = phba->sli4_hba.next_rpi;
8753         spin_unlock_irq(&phba->hbalock);
8754
8755         /* Reached full RPI range */
8756         if (curr_rpi_range == rpi_limit)
8757                 return NULL;
8758
8759         /*
8760          * First allocate the protocol header region for the port.  The
8761          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
8762          */
8763         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
8764         if (!dmabuf)
8765                 return NULL;
8766
8767         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
8768                                           LPFC_HDR_TEMPLATE_SIZE,
8769                                           &dmabuf->phys, GFP_KERNEL);
8770         if (!dmabuf->virt) {
8771                 rpi_hdr = NULL;
8772                 goto err_free_dmabuf;
8773         }
8774
8775         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
8776                 rpi_hdr = NULL;
8777                 goto err_free_coherent;
8778         }
8779
8780         /* Save the rpi header data for cleanup later. */
8781         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
8782         if (!rpi_hdr)
8783                 goto err_free_coherent;
8784
8785         rpi_hdr->dmabuf = dmabuf;
8786         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
8787         rpi_hdr->page_count = 1;
8788         spin_lock_irq(&phba->hbalock);
8789
8790         /* The rpi_hdr stores the logical index only. */
8791         rpi_hdr->start_rpi = curr_rpi_range;
8792         rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT;
8793         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
8794
8795         spin_unlock_irq(&phba->hbalock);
8796         return rpi_hdr;
8797
8798  err_free_coherent:
8799         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
8800                           dmabuf->virt, dmabuf->phys);
8801  err_free_dmabuf:
8802         kfree(dmabuf);
8803         return NULL;
8804 }
8805
8806 /**
8807  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
8808  * @phba: pointer to lpfc hba data structure.
8809  *
8810  * This routine is invoked to remove all memory resources allocated
8811  * to support rpis for SLI4 ports not supporting extents. This routine
8812  * presumes the caller has released all rpis consumed by fabric or port
8813  * logins and is prepared to have the header pages removed.
8814  **/
8815 void
8816 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
8817 {
8818         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
8819
8820         if (!phba->sli4_hba.rpi_hdrs_in_use)
8821                 goto exit;
8822
8823         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
8824                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
8825                 list_del(&rpi_hdr->list);
8826                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
8827                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
8828                 kfree(rpi_hdr->dmabuf);
8829                 kfree(rpi_hdr);
8830         }
8831  exit:
8832         /* There are no rpis available to the port now. */
8833         phba->sli4_hba.next_rpi = 0;
8834 }
8835
8836 /**
8837  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
8838  * @pdev: pointer to pci device data structure.
8839  *
8840  * This routine is invoked to allocate the driver hba data structure for an
8841  * HBA device. If the allocation is successful, the phba reference to the
8842  * PCI device data structure is set.
8843  *
8844  * Return codes
8845  *      pointer to @phba - successful
8846  *      NULL - error
8847  **/
8848 static struct lpfc_hba *
8849 lpfc_hba_alloc(struct pci_dev *pdev)
8850 {
8851         struct lpfc_hba *phba;
8852
8853         /* Allocate memory for HBA structure */
8854         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
8855         if (!phba) {
8856                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
8857                 return NULL;
8858         }
8859
8860         /* Set reference to PCI device in HBA structure */
8861         phba->pcidev = pdev;
8862
8863         /* Assign an unused board number */
8864         phba->brd_no = lpfc_get_instance();
8865         if (phba->brd_no < 0) {
8866                 kfree(phba);
8867                 return NULL;
8868         }
8869         phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL;
8870
8871         spin_lock_init(&phba->ct_ev_lock);
8872         INIT_LIST_HEAD(&phba->ct_ev_waiters);
8873
8874         return phba;
8875 }
8876
8877 /**
8878  * lpfc_hba_free - Free driver hba data structure with a device.
8879  * @phba: pointer to lpfc hba data structure.
8880  *
8881  * This routine is invoked to free the driver hba data structure with an
8882  * HBA device.
8883  **/
8884 static void
8885 lpfc_hba_free(struct lpfc_hba *phba)
8886 {
8887         if (phba->sli_rev == LPFC_SLI_REV4)
8888                 kfree(phba->sli4_hba.hdwq);
8889
8890         /* Release the driver assigned board number */
8891         idr_remove(&lpfc_hba_index, phba->brd_no);
8892
8893         /* Free memory allocated with sli3 rings */
8894         kfree(phba->sli.sli3_ring);
8895         phba->sli.sli3_ring = NULL;
8896
8897         kfree(phba);
8898         return;
8899 }
8900
8901 /**
8902  * lpfc_create_shost - Create hba physical port with associated scsi host.
8903  * @phba: pointer to lpfc hba data structure.
8904  *
8905  * This routine is invoked to create HBA physical port and associate a SCSI
8906  * host with it.
8907  *
8908  * Return codes
8909  *      0 - successful
8910  *      other values - error
8911  **/
8912 static int
8913 lpfc_create_shost(struct lpfc_hba *phba)
8914 {
8915         struct lpfc_vport *vport;
8916         struct Scsi_Host  *shost;
8917
8918         /* Initialize HBA FC structure */
8919         phba->fc_edtov = FF_DEF_EDTOV;
8920         phba->fc_ratov = FF_DEF_RATOV;
8921         phba->fc_altov = FF_DEF_ALTOV;
8922         phba->fc_arbtov = FF_DEF_ARBTOV;
8923
8924         atomic_set(&phba->sdev_cnt, 0);
8925         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
8926         if (!vport)
8927                 return -ENODEV;
8928
8929         shost = lpfc_shost_from_vport(vport);
8930         phba->pport = vport;
8931
8932         if (phba->nvmet_support) {
8933                 /* Only 1 vport (pport) will support NVME target */
8934                 phba->targetport = NULL;
8935                 phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME;
8936                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME_DISC,
8937                                 "6076 NVME Target Found\n");
8938         }
8939
8940         lpfc_debugfs_initialize(vport);
8941         /* Put reference to SCSI host to driver's device private data */
8942         pci_set_drvdata(phba->pcidev, shost);
8943
8944         /*
8945          * At this point we are fully registered with PSA. In addition,
8946          * any initial discovery should be completed.
8947          */
8948         vport->load_flag |= FC_ALLOW_FDMI;
8949         if (phba->cfg_enable_SmartSAN ||
8950             (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) {
8951
8952                 /* Setup appropriate attribute masks */
8953                 vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR;
8954                 if (phba->cfg_enable_SmartSAN)
8955                         vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR;
8956                 else
8957                         vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR;
8958         }
8959         return 0;
8960 }
8961
8962 /**
8963  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
8964  * @phba: pointer to lpfc hba data structure.
8965  *
8966  * This routine is invoked to destroy HBA physical port and the associated
8967  * SCSI host.
8968  **/
8969 static void
8970 lpfc_destroy_shost(struct lpfc_hba *phba)
8971 {
8972         struct lpfc_vport *vport = phba->pport;
8973
8974         /* Destroy physical port that associated with the SCSI host */
8975         destroy_port(vport);
8976
8977         return;
8978 }
8979
8980 /**
8981  * lpfc_setup_bg - Setup Block guard structures and debug areas.
8982  * @phba: pointer to lpfc hba data structure.
8983  * @shost: the shost to be used to detect Block guard settings.
8984  *
8985  * This routine sets up the local Block guard protocol settings for @shost.
8986  * This routine also allocates memory for debugging bg buffers.
8987  **/
8988 static void
8989 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
8990 {
8991         uint32_t old_mask;
8992         uint32_t old_guard;
8993
8994         if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
8995                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8996                                 "1478 Registering BlockGuard with the "
8997                                 "SCSI layer\n");
8998
8999                 old_mask = phba->cfg_prot_mask;
9000                 old_guard = phba->cfg_prot_guard;
9001
9002                 /* Only allow supported values */
9003                 phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
9004                         SHOST_DIX_TYPE0_PROTECTION |
9005                         SHOST_DIX_TYPE1_PROTECTION);
9006                 phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP |
9007                                          SHOST_DIX_GUARD_CRC);
9008
9009                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
9010                 if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
9011                         phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
9012
9013                 if (phba->cfg_prot_mask && phba->cfg_prot_guard) {
9014                         if ((old_mask != phba->cfg_prot_mask) ||
9015                                 (old_guard != phba->cfg_prot_guard))
9016                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9017                                         "1475 Registering BlockGuard with the "
9018                                         "SCSI layer: mask %d  guard %d\n",
9019                                         phba->cfg_prot_mask,
9020                                         phba->cfg_prot_guard);
9021
9022                         scsi_host_set_prot(shost, phba->cfg_prot_mask);
9023                         scsi_host_set_guard(shost, phba->cfg_prot_guard);
9024                 } else
9025                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9026                                 "1479 Not Registering BlockGuard with the SCSI "
9027                                 "layer, Bad protection parameters: %d %d\n",
9028                                 old_mask, old_guard);
9029         }
9030 }
9031
9032 /**
9033  * lpfc_post_init_setup - Perform necessary device post initialization setup.
9034  * @phba: pointer to lpfc hba data structure.
9035  *
9036  * This routine is invoked to perform all the necessary post initialization
9037  * setup for the device.
9038  **/
9039 static void
9040 lpfc_post_init_setup(struct lpfc_hba *phba)
9041 {
9042         struct Scsi_Host  *shost;
9043         struct lpfc_adapter_event_header adapter_event;
9044
9045         /* Get the default values for Model Name and Description */
9046         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9047
9048         /*
9049          * hba setup may have changed the hba_queue_depth so we need to
9050          * adjust the value of can_queue.
9051          */
9052         shost = pci_get_drvdata(phba->pcidev);
9053         shost->can_queue = phba->cfg_hba_queue_depth - 10;
9054
9055         lpfc_host_attrib_init(shost);
9056
9057         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
9058                 spin_lock_irq(shost->host_lock);
9059                 lpfc_poll_start_timer(phba);
9060                 spin_unlock_irq(shost->host_lock);
9061         }
9062
9063         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9064                         "0428 Perform SCSI scan\n");
9065         /* Send board arrival event to upper layer */
9066         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
9067         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
9068         fc_host_post_vendor_event(shost, fc_get_event_number(),
9069                                   sizeof(adapter_event),
9070                                   (char *) &adapter_event,
9071                                   LPFC_NL_VENDOR_ID);
9072         return;
9073 }
9074
9075 /**
9076  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
9077  * @phba: pointer to lpfc hba data structure.
9078  *
9079  * This routine is invoked to set up the PCI device memory space for device
9080  * with SLI-3 interface spec.
9081  *
9082  * Return codes
9083  *      0 - successful
9084  *      other values - error
9085  **/
9086 static int
9087 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
9088 {
9089         struct pci_dev *pdev = phba->pcidev;
9090         unsigned long bar0map_len, bar2map_len;
9091         int i, hbq_count;
9092         void *ptr;
9093         int error;
9094
9095         if (!pdev)
9096                 return -ENODEV;
9097
9098         /* Set the device DMA mask size */
9099         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
9100         if (error)
9101                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
9102         if (error)
9103                 return error;
9104         error = -ENODEV;
9105
9106         /* Get the bus address of Bar0 and Bar2 and the number of bytes
9107          * required by each mapping.
9108          */
9109         phba->pci_bar0_map = pci_resource_start(pdev, 0);
9110         bar0map_len = pci_resource_len(pdev, 0);
9111
9112         phba->pci_bar2_map = pci_resource_start(pdev, 2);
9113         bar2map_len = pci_resource_len(pdev, 2);
9114
9115         /* Map HBA SLIM to a kernel virtual address. */
9116         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
9117         if (!phba->slim_memmap_p) {
9118                 dev_printk(KERN_ERR, &pdev->dev,
9119                            "ioremap failed for SLIM memory.\n");
9120                 goto out;
9121         }
9122
9123         /* Map HBA Control Registers to a kernel virtual address. */
9124         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
9125         if (!phba->ctrl_regs_memmap_p) {
9126                 dev_printk(KERN_ERR, &pdev->dev,
9127                            "ioremap failed for HBA control registers.\n");
9128                 goto out_iounmap_slim;
9129         }
9130
9131         /* Allocate memory for SLI-2 structures */
9132         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9133                                                &phba->slim2p.phys, GFP_KERNEL);
9134         if (!phba->slim2p.virt)
9135                 goto out_iounmap;
9136
9137         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
9138         phba->mbox_ext = (phba->slim2p.virt +
9139                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
9140         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
9141         phba->IOCBs = (phba->slim2p.virt +
9142                        offsetof(struct lpfc_sli2_slim, IOCBs));
9143
9144         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
9145                                                  lpfc_sli_hbq_size(),
9146                                                  &phba->hbqslimp.phys,
9147                                                  GFP_KERNEL);
9148         if (!phba->hbqslimp.virt)
9149                 goto out_free_slim;
9150
9151         hbq_count = lpfc_sli_hbq_count();
9152         ptr = phba->hbqslimp.virt;
9153         for (i = 0; i < hbq_count; ++i) {
9154                 phba->hbqs[i].hbq_virt = ptr;
9155                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
9156                 ptr += (lpfc_hbq_defs[i]->entry_count *
9157                         sizeof(struct lpfc_hbq_entry));
9158         }
9159         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
9160         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
9161
9162         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
9163
9164         phba->MBslimaddr = phba->slim_memmap_p;
9165         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
9166         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
9167         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
9168         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
9169
9170         return 0;
9171
9172 out_free_slim:
9173         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9174                           phba->slim2p.virt, phba->slim2p.phys);
9175 out_iounmap:
9176         iounmap(phba->ctrl_regs_memmap_p);
9177 out_iounmap_slim:
9178         iounmap(phba->slim_memmap_p);
9179 out:
9180         return error;
9181 }
9182
9183 /**
9184  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
9185  * @phba: pointer to lpfc hba data structure.
9186  *
9187  * This routine is invoked to unset the PCI device memory space for device
9188  * with SLI-3 interface spec.
9189  **/
9190 static void
9191 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
9192 {
9193         struct pci_dev *pdev;
9194
9195         /* Obtain PCI device reference */
9196         if (!phba->pcidev)
9197                 return;
9198         else
9199                 pdev = phba->pcidev;
9200
9201         /* Free coherent DMA memory allocated */
9202         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
9203                           phba->hbqslimp.virt, phba->hbqslimp.phys);
9204         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
9205                           phba->slim2p.virt, phba->slim2p.phys);
9206
9207         /* I/O memory unmap */
9208         iounmap(phba->ctrl_regs_memmap_p);
9209         iounmap(phba->slim_memmap_p);
9210
9211         return;
9212 }
9213
9214 /**
9215  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
9216  * @phba: pointer to lpfc hba data structure.
9217  *
9218  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
9219  * done and check status.
9220  *
9221  * Return 0 if successful, otherwise -ENODEV.
9222  **/
9223 int
9224 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
9225 {
9226         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
9227         struct lpfc_register reg_data;
9228         int i, port_error = 0;
9229         uint32_t if_type;
9230
9231         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
9232         memset(&reg_data, 0, sizeof(reg_data));
9233         if (!phba->sli4_hba.PSMPHRregaddr)
9234                 return -ENODEV;
9235
9236         /* Wait up to 30 seconds for the SLI Port POST done and ready */
9237         for (i = 0; i < 3000; i++) {
9238                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9239                         &portsmphr_reg.word0) ||
9240                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
9241                         /* Port has a fatal POST error, break out */
9242                         port_error = -ENODEV;
9243                         break;
9244                 }
9245                 if (LPFC_POST_STAGE_PORT_READY ==
9246                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
9247                         break;
9248                 msleep(10);
9249         }
9250
9251         /*
9252          * If there was a port error during POST, then don't proceed with
9253          * other register reads as the data may not be valid.  Just exit.
9254          */
9255         if (port_error) {
9256                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9257                         "1408 Port Failed POST - portsmphr=0x%x, "
9258                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
9259                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
9260                         portsmphr_reg.word0,
9261                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
9262                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
9263                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
9264                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
9265                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
9266                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
9267                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
9268                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
9269         } else {
9270                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9271                                 "2534 Device Info: SLIFamily=0x%x, "
9272                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
9273                                 "SLIHint_2=0x%x, FT=0x%x\n",
9274                                 bf_get(lpfc_sli_intf_sli_family,
9275                                        &phba->sli4_hba.sli_intf),
9276                                 bf_get(lpfc_sli_intf_slirev,
9277                                        &phba->sli4_hba.sli_intf),
9278                                 bf_get(lpfc_sli_intf_if_type,
9279                                        &phba->sli4_hba.sli_intf),
9280                                 bf_get(lpfc_sli_intf_sli_hint1,
9281                                        &phba->sli4_hba.sli_intf),
9282                                 bf_get(lpfc_sli_intf_sli_hint2,
9283                                        &phba->sli4_hba.sli_intf),
9284                                 bf_get(lpfc_sli_intf_func_type,
9285                                        &phba->sli4_hba.sli_intf));
9286                 /*
9287                  * Check for other Port errors during the initialization
9288                  * process.  Fail the load if the port did not come up
9289                  * correctly.
9290                  */
9291                 if_type = bf_get(lpfc_sli_intf_if_type,
9292                                  &phba->sli4_hba.sli_intf);
9293                 switch (if_type) {
9294                 case LPFC_SLI_INTF_IF_TYPE_0:
9295                         phba->sli4_hba.ue_mask_lo =
9296                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
9297                         phba->sli4_hba.ue_mask_hi =
9298                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
9299                         uerrlo_reg.word0 =
9300                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
9301                         uerrhi_reg.word0 =
9302                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
9303                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
9304                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
9305                                 lpfc_printf_log(phba, KERN_ERR,
9306                                                 LOG_TRACE_EVENT,
9307                                                 "1422 Unrecoverable Error "
9308                                                 "Detected during POST "
9309                                                 "uerr_lo_reg=0x%x, "
9310                                                 "uerr_hi_reg=0x%x, "
9311                                                 "ue_mask_lo_reg=0x%x, "
9312                                                 "ue_mask_hi_reg=0x%x\n",
9313                                                 uerrlo_reg.word0,
9314                                                 uerrhi_reg.word0,
9315                                                 phba->sli4_hba.ue_mask_lo,
9316                                                 phba->sli4_hba.ue_mask_hi);
9317                                 port_error = -ENODEV;
9318                         }
9319                         break;
9320                 case LPFC_SLI_INTF_IF_TYPE_2:
9321                 case LPFC_SLI_INTF_IF_TYPE_6:
9322                         /* Final checks.  The port status should be clean. */
9323                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9324                                 &reg_data.word0) ||
9325                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
9326                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
9327                                 phba->work_status[0] =
9328                                         readl(phba->sli4_hba.u.if_type2.
9329                                               ERR1regaddr);
9330                                 phba->work_status[1] =
9331                                         readl(phba->sli4_hba.u.if_type2.
9332                                               ERR2regaddr);
9333                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9334                                         "2888 Unrecoverable port error "
9335                                         "following POST: port status reg "
9336                                         "0x%x, port_smphr reg 0x%x, "
9337                                         "error 1=0x%x, error 2=0x%x\n",
9338                                         reg_data.word0,
9339                                         portsmphr_reg.word0,
9340                                         phba->work_status[0],
9341                                         phba->work_status[1]);
9342                                 port_error = -ENODEV;
9343                         }
9344                         break;
9345                 case LPFC_SLI_INTF_IF_TYPE_1:
9346                 default:
9347                         break;
9348                 }
9349         }
9350         return port_error;
9351 }
9352
9353 /**
9354  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
9355  * @phba: pointer to lpfc hba data structure.
9356  * @if_type:  The SLI4 interface type getting configured.
9357  *
9358  * This routine is invoked to set up SLI4 BAR0 PCI config space register
9359  * memory map.
9360  **/
9361 static void
9362 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9363 {
9364         switch (if_type) {
9365         case LPFC_SLI_INTF_IF_TYPE_0:
9366                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
9367                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
9368                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
9369                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
9370                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
9371                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
9372                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
9373                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
9374                 phba->sli4_hba.SLIINTFregaddr =
9375                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9376                 break;
9377         case LPFC_SLI_INTF_IF_TYPE_2:
9378                 phba->sli4_hba.u.if_type2.EQDregaddr =
9379                         phba->sli4_hba.conf_regs_memmap_p +
9380                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9381                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9382                         phba->sli4_hba.conf_regs_memmap_p +
9383                                                 LPFC_CTL_PORT_ER1_OFFSET;
9384                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9385                         phba->sli4_hba.conf_regs_memmap_p +
9386                                                 LPFC_CTL_PORT_ER2_OFFSET;
9387                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9388                         phba->sli4_hba.conf_regs_memmap_p +
9389                                                 LPFC_CTL_PORT_CTL_OFFSET;
9390                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9391                         phba->sli4_hba.conf_regs_memmap_p +
9392                                                 LPFC_CTL_PORT_STA_OFFSET;
9393                 phba->sli4_hba.SLIINTFregaddr =
9394                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
9395                 phba->sli4_hba.PSMPHRregaddr =
9396                         phba->sli4_hba.conf_regs_memmap_p +
9397                                                 LPFC_CTL_PORT_SEM_OFFSET;
9398                 phba->sli4_hba.RQDBregaddr =
9399                         phba->sli4_hba.conf_regs_memmap_p +
9400                                                 LPFC_ULP0_RQ_DOORBELL;
9401                 phba->sli4_hba.WQDBregaddr =
9402                         phba->sli4_hba.conf_regs_memmap_p +
9403                                                 LPFC_ULP0_WQ_DOORBELL;
9404                 phba->sli4_hba.CQDBregaddr =
9405                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
9406                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9407                 phba->sli4_hba.MQDBregaddr =
9408                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
9409                 phba->sli4_hba.BMBXregaddr =
9410                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9411                 break;
9412         case LPFC_SLI_INTF_IF_TYPE_6:
9413                 phba->sli4_hba.u.if_type2.EQDregaddr =
9414                         phba->sli4_hba.conf_regs_memmap_p +
9415                                                 LPFC_CTL_PORT_EQ_DELAY_OFFSET;
9416                 phba->sli4_hba.u.if_type2.ERR1regaddr =
9417                         phba->sli4_hba.conf_regs_memmap_p +
9418                                                 LPFC_CTL_PORT_ER1_OFFSET;
9419                 phba->sli4_hba.u.if_type2.ERR2regaddr =
9420                         phba->sli4_hba.conf_regs_memmap_p +
9421                                                 LPFC_CTL_PORT_ER2_OFFSET;
9422                 phba->sli4_hba.u.if_type2.CTRLregaddr =
9423                         phba->sli4_hba.conf_regs_memmap_p +
9424                                                 LPFC_CTL_PORT_CTL_OFFSET;
9425                 phba->sli4_hba.u.if_type2.STATUSregaddr =
9426                         phba->sli4_hba.conf_regs_memmap_p +
9427                                                 LPFC_CTL_PORT_STA_OFFSET;
9428                 phba->sli4_hba.PSMPHRregaddr =
9429                         phba->sli4_hba.conf_regs_memmap_p +
9430                                                 LPFC_CTL_PORT_SEM_OFFSET;
9431                 phba->sli4_hba.BMBXregaddr =
9432                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
9433                 break;
9434         case LPFC_SLI_INTF_IF_TYPE_1:
9435         default:
9436                 dev_printk(KERN_ERR, &phba->pcidev->dev,
9437                            "FATAL - unsupported SLI4 interface type - %d\n",
9438                            if_type);
9439                 break;
9440         }
9441 }
9442
9443 /**
9444  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
9445  * @phba: pointer to lpfc hba data structure.
9446  * @if_type: sli if type to operate on.
9447  *
9448  * This routine is invoked to set up SLI4 BAR1 register memory map.
9449  **/
9450 static void
9451 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
9452 {
9453         switch (if_type) {
9454         case LPFC_SLI_INTF_IF_TYPE_0:
9455                 phba->sli4_hba.PSMPHRregaddr =
9456                         phba->sli4_hba.ctrl_regs_memmap_p +
9457                         LPFC_SLIPORT_IF0_SMPHR;
9458                 phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9459                         LPFC_HST_ISR0;
9460                 phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9461                         LPFC_HST_IMR0;
9462                 phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
9463                         LPFC_HST_ISCR0;
9464                 break;
9465         case LPFC_SLI_INTF_IF_TYPE_6:
9466                 phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9467                         LPFC_IF6_RQ_DOORBELL;
9468                 phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9469                         LPFC_IF6_WQ_DOORBELL;
9470                 phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9471                         LPFC_IF6_CQ_DOORBELL;
9472                 phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9473                         LPFC_IF6_EQ_DOORBELL;
9474                 phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p +
9475                         LPFC_IF6_MQ_DOORBELL;
9476                 break;
9477         case LPFC_SLI_INTF_IF_TYPE_2:
9478         case LPFC_SLI_INTF_IF_TYPE_1:
9479         default:
9480                 dev_err(&phba->pcidev->dev,
9481                            "FATAL - unsupported SLI4 interface type - %d\n",
9482                            if_type);
9483                 break;
9484         }
9485 }
9486
9487 /**
9488  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
9489  * @phba: pointer to lpfc hba data structure.
9490  * @vf: virtual function number
9491  *
9492  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
9493  * based on the given viftual function number, @vf.
9494  *
9495  * Return 0 if successful, otherwise -ENODEV.
9496  **/
9497 static int
9498 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
9499 {
9500         if (vf > LPFC_VIR_FUNC_MAX)
9501                 return -ENODEV;
9502
9503         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9504                                 vf * LPFC_VFR_PAGE_SIZE +
9505                                         LPFC_ULP0_RQ_DOORBELL);
9506         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9507                                 vf * LPFC_VFR_PAGE_SIZE +
9508                                         LPFC_ULP0_WQ_DOORBELL);
9509         phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9510                                 vf * LPFC_VFR_PAGE_SIZE +
9511                                         LPFC_EQCQ_DOORBELL);
9512         phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr;
9513         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9514                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
9515         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
9516                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
9517         return 0;
9518 }
9519
9520 /**
9521  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
9522  * @phba: pointer to lpfc hba data structure.
9523  *
9524  * This routine is invoked to create the bootstrap mailbox
9525  * region consistent with the SLI-4 interface spec.  This
9526  * routine allocates all memory necessary to communicate
9527  * mailbox commands to the port and sets up all alignment
9528  * needs.  No locks are expected to be held when calling
9529  * this routine.
9530  *
9531  * Return codes
9532  *      0 - successful
9533  *      -ENOMEM - could not allocated memory.
9534  **/
9535 static int
9536 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
9537 {
9538         uint32_t bmbx_size;
9539         struct lpfc_dmabuf *dmabuf;
9540         struct dma_address *dma_address;
9541         uint32_t pa_addr;
9542         uint64_t phys_addr;
9543
9544         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9545         if (!dmabuf)
9546                 return -ENOMEM;
9547
9548         /*
9549          * The bootstrap mailbox region is comprised of 2 parts
9550          * plus an alignment restriction of 16 bytes.
9551          */
9552         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
9553         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, bmbx_size,
9554                                           &dmabuf->phys, GFP_KERNEL);
9555         if (!dmabuf->virt) {
9556                 kfree(dmabuf);
9557                 return -ENOMEM;
9558         }
9559
9560         /*
9561          * Initialize the bootstrap mailbox pointers now so that the register
9562          * operations are simple later.  The mailbox dma address is required
9563          * to be 16-byte aligned.  Also align the virtual memory as each
9564          * maibox is copied into the bmbx mailbox region before issuing the
9565          * command to the port.
9566          */
9567         phba->sli4_hba.bmbx.dmabuf = dmabuf;
9568         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
9569
9570         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
9571                                               LPFC_ALIGN_16_BYTE);
9572         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
9573                                               LPFC_ALIGN_16_BYTE);
9574
9575         /*
9576          * Set the high and low physical addresses now.  The SLI4 alignment
9577          * requirement is 16 bytes and the mailbox is posted to the port
9578          * as two 30-bit addresses.  The other data is a bit marking whether
9579          * the 30-bit address is the high or low address.
9580          * Upcast bmbx aphys to 64bits so shift instruction compiles
9581          * clean on 32 bit machines.
9582          */
9583         dma_address = &phba->sli4_hba.bmbx.dma_address;
9584         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
9585         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
9586         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
9587                                            LPFC_BMBX_BIT1_ADDR_HI);
9588
9589         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
9590         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
9591                                            LPFC_BMBX_BIT1_ADDR_LO);
9592         return 0;
9593 }
9594
9595 /**
9596  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
9597  * @phba: pointer to lpfc hba data structure.
9598  *
9599  * This routine is invoked to teardown the bootstrap mailbox
9600  * region and release all host resources. This routine requires
9601  * the caller to ensure all mailbox commands recovered, no
9602  * additional mailbox comands are sent, and interrupts are disabled
9603  * before calling this routine.
9604  *
9605  **/
9606 static void
9607 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
9608 {
9609         dma_free_coherent(&phba->pcidev->dev,
9610                           phba->sli4_hba.bmbx.bmbx_size,
9611                           phba->sli4_hba.bmbx.dmabuf->virt,
9612                           phba->sli4_hba.bmbx.dmabuf->phys);
9613
9614         kfree(phba->sli4_hba.bmbx.dmabuf);
9615         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
9616 }
9617
9618 static const char * const lpfc_topo_to_str[] = {
9619         "Loop then P2P",
9620         "Loopback",
9621         "P2P Only",
9622         "Unsupported",
9623         "Loop Only",
9624         "Unsupported",
9625         "P2P then Loop",
9626 };
9627
9628 #define LINK_FLAGS_DEF  0x0
9629 #define LINK_FLAGS_P2P  0x1
9630 #define LINK_FLAGS_LOOP 0x2
9631 /**
9632  * lpfc_map_topology - Map the topology read from READ_CONFIG
9633  * @phba: pointer to lpfc hba data structure.
9634  * @rd_config: pointer to read config data
9635  *
9636  * This routine is invoked to map the topology values as read
9637  * from the read config mailbox command. If the persistent
9638  * topology feature is supported, the firmware will provide the
9639  * saved topology information to be used in INIT_LINK
9640  **/
9641 static void
9642 lpfc_map_topology(struct lpfc_hba *phba, struct lpfc_mbx_read_config *rd_config)
9643 {
9644         u8 ptv, tf, pt;
9645
9646         ptv = bf_get(lpfc_mbx_rd_conf_ptv, rd_config);
9647         tf = bf_get(lpfc_mbx_rd_conf_tf, rd_config);
9648         pt = bf_get(lpfc_mbx_rd_conf_pt, rd_config);
9649
9650         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9651                         "2027 Read Config Data : ptv:0x%x, tf:0x%x pt:0x%x",
9652                          ptv, tf, pt);
9653         if (!ptv) {
9654                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9655                                 "2019 FW does not support persistent topology "
9656                                 "Using driver parameter defined value [%s]",
9657                                 lpfc_topo_to_str[phba->cfg_topology]);
9658                 return;
9659         }
9660         /* FW supports persistent topology - override module parameter value */
9661         phba->hba_flag |= HBA_PERSISTENT_TOPO;
9662
9663         /* if ASIC_GEN_NUM >= 0xC) */
9664         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9665                     LPFC_SLI_INTF_IF_TYPE_6) ||
9666             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
9667                     LPFC_SLI_INTF_FAMILY_G6)) {
9668                 if (!tf) {
9669                         phba->cfg_topology = ((pt == LINK_FLAGS_LOOP)
9670                                         ? FLAGS_TOPOLOGY_MODE_LOOP
9671                                         : FLAGS_TOPOLOGY_MODE_PT_PT);
9672                 } else {
9673                         phba->hba_flag &= ~HBA_PERSISTENT_TOPO;
9674                 }
9675         } else { /* G5 */
9676                 if (tf) {
9677                         /* If topology failover set - pt is '0' or '1' */
9678                         phba->cfg_topology = (pt ? FLAGS_TOPOLOGY_MODE_PT_LOOP :
9679                                               FLAGS_TOPOLOGY_MODE_LOOP_PT);
9680                 } else {
9681                         phba->cfg_topology = ((pt == LINK_FLAGS_P2P)
9682                                         ? FLAGS_TOPOLOGY_MODE_PT_PT
9683                                         : FLAGS_TOPOLOGY_MODE_LOOP);
9684                 }
9685         }
9686         if (phba->hba_flag & HBA_PERSISTENT_TOPO) {
9687                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9688                                 "2020 Using persistent topology value [%s]",
9689                                 lpfc_topo_to_str[phba->cfg_topology]);
9690         } else {
9691                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9692                                 "2021 Invalid topology values from FW "
9693                                 "Using driver parameter defined value [%s]",
9694                                 lpfc_topo_to_str[phba->cfg_topology]);
9695         }
9696 }
9697
9698 /**
9699  * lpfc_sli4_read_config - Get the config parameters.
9700  * @phba: pointer to lpfc hba data structure.
9701  *
9702  * This routine is invoked to read the configuration parameters from the HBA.
9703  * The configuration parameters are used to set the base and maximum values
9704  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
9705  * allocation for the port.
9706  *
9707  * Return codes
9708  *      0 - successful
9709  *      -ENOMEM - No available memory
9710  *      -EIO - The mailbox failed to complete successfully.
9711  **/
9712 int
9713 lpfc_sli4_read_config(struct lpfc_hba *phba)
9714 {
9715         LPFC_MBOXQ_t *pmb;
9716         struct lpfc_mbx_read_config *rd_config;
9717         union  lpfc_sli4_cfg_shdr *shdr;
9718         uint32_t shdr_status, shdr_add_status;
9719         struct lpfc_mbx_get_func_cfg *get_func_cfg;
9720         struct lpfc_rsrc_desc_fcfcoe *desc;
9721         char *pdesc_0;
9722         uint16_t forced_link_speed;
9723         uint32_t if_type, qmin;
9724         int length, i, rc = 0, rc2;
9725
9726         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9727         if (!pmb) {
9728                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9729                                 "2011 Unable to allocate memory for issuing "
9730                                 "SLI_CONFIG_SPECIAL mailbox command\n");
9731                 return -ENOMEM;
9732         }
9733
9734         lpfc_read_config(phba, pmb);
9735
9736         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9737         if (rc != MBX_SUCCESS) {
9738                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9739                                 "2012 Mailbox failed , mbxCmd x%x "
9740                                 "READ_CONFIG, mbxStatus x%x\n",
9741                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
9742                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
9743                 rc = -EIO;
9744         } else {
9745                 rd_config = &pmb->u.mqe.un.rd_config;
9746                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
9747                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
9748                         phba->sli4_hba.lnk_info.lnk_tp =
9749                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
9750                         phba->sli4_hba.lnk_info.lnk_no =
9751                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
9752                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9753                                         "3081 lnk_type:%d, lnk_numb:%d\n",
9754                                         phba->sli4_hba.lnk_info.lnk_tp,
9755                                         phba->sli4_hba.lnk_info.lnk_no);
9756                 } else
9757                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9758                                         "3082 Mailbox (x%x) returned ldv:x0\n",
9759                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
9760                 if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) {
9761                         phba->bbcredit_support = 1;
9762                         phba->sli4_hba.bbscn_params.word0 = rd_config->word8;
9763                 }
9764
9765                 phba->sli4_hba.conf_trunk =
9766                         bf_get(lpfc_mbx_rd_conf_trunk, rd_config);
9767                 phba->sli4_hba.extents_in_use =
9768                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
9769                 phba->sli4_hba.max_cfg_param.max_xri =
9770                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
9771                 /* Reduce resource usage in kdump environment */
9772                 if (is_kdump_kernel() &&
9773                     phba->sli4_hba.max_cfg_param.max_xri > 512)
9774                         phba->sli4_hba.max_cfg_param.max_xri = 512;
9775                 phba->sli4_hba.max_cfg_param.xri_base =
9776                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
9777                 phba->sli4_hba.max_cfg_param.max_vpi =
9778                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
9779                 /* Limit the max we support */
9780                 if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS)
9781                         phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS;
9782                 phba->sli4_hba.max_cfg_param.vpi_base =
9783                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
9784                 phba->sli4_hba.max_cfg_param.max_rpi =
9785                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
9786                 phba->sli4_hba.max_cfg_param.rpi_base =
9787                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
9788                 phba->sli4_hba.max_cfg_param.max_vfi =
9789                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
9790                 phba->sli4_hba.max_cfg_param.vfi_base =
9791                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
9792                 phba->sli4_hba.max_cfg_param.max_fcfi =
9793                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
9794                 phba->sli4_hba.max_cfg_param.max_eq =
9795                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
9796                 phba->sli4_hba.max_cfg_param.max_rq =
9797                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
9798                 phba->sli4_hba.max_cfg_param.max_wq =
9799                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
9800                 phba->sli4_hba.max_cfg_param.max_cq =
9801                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
9802                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
9803                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
9804                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
9805                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
9806                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
9807                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
9808                 phba->max_vports = phba->max_vpi;
9809
9810                 /* Next decide on FPIN or Signal E2E CGN support
9811                  * For congestion alarms and warnings valid combination are:
9812                  * 1. FPIN alarms / FPIN warnings
9813                  * 2. Signal alarms / Signal warnings
9814                  * 3. FPIN alarms / Signal warnings
9815                  * 4. Signal alarms / FPIN warnings
9816                  *
9817                  * Initialize the adapter frequency to 100 mSecs
9818                  */
9819                 phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9820                 phba->cgn_reg_signal = EDC_CG_SIG_NOTSUPPORTED;
9821                 phba->cgn_sig_freq = lpfc_fabric_cgn_frequency;
9822
9823                 if (lpfc_use_cgn_signal) {
9824                         if (bf_get(lpfc_mbx_rd_conf_wcs, rd_config)) {
9825                                 phba->cgn_reg_signal = EDC_CG_SIG_WARN_ONLY;
9826                                 phba->cgn_reg_fpin &= ~LPFC_CGN_FPIN_WARN;
9827                         }
9828                         if (bf_get(lpfc_mbx_rd_conf_acs, rd_config)) {
9829                                 /* MUST support both alarm and warning
9830                                  * because EDC does not support alarm alone.
9831                                  */
9832                                 if (phba->cgn_reg_signal !=
9833                                     EDC_CG_SIG_WARN_ONLY) {
9834                                         /* Must support both or none */
9835                                         phba->cgn_reg_fpin = LPFC_CGN_FPIN_BOTH;
9836                                         phba->cgn_reg_signal =
9837                                                 EDC_CG_SIG_NOTSUPPORTED;
9838                                 } else {
9839                                         phba->cgn_reg_signal =
9840                                                 EDC_CG_SIG_WARN_ALARM;
9841                                         phba->cgn_reg_fpin =
9842                                                 LPFC_CGN_FPIN_NONE;
9843                                 }
9844                         }
9845                 }
9846
9847                 /* Set the congestion initial signal and fpin values. */
9848                 phba->cgn_init_reg_fpin = phba->cgn_reg_fpin;
9849                 phba->cgn_init_reg_signal = phba->cgn_reg_signal;
9850
9851                 lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
9852                                 "6446 READ_CONFIG reg_sig x%x reg_fpin:x%x\n",
9853                                 phba->cgn_reg_signal, phba->cgn_reg_fpin);
9854
9855                 lpfc_map_topology(phba, rd_config);
9856                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9857                                 "2003 cfg params Extents? %d "
9858                                 "XRI(B:%d M:%d), "
9859                                 "VPI(B:%d M:%d) "
9860                                 "VFI(B:%d M:%d) "
9861                                 "RPI(B:%d M:%d) "
9862                                 "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d lmt:x%x\n",
9863                                 phba->sli4_hba.extents_in_use,
9864                                 phba->sli4_hba.max_cfg_param.xri_base,
9865                                 phba->sli4_hba.max_cfg_param.max_xri,
9866                                 phba->sli4_hba.max_cfg_param.vpi_base,
9867                                 phba->sli4_hba.max_cfg_param.max_vpi,
9868                                 phba->sli4_hba.max_cfg_param.vfi_base,
9869                                 phba->sli4_hba.max_cfg_param.max_vfi,
9870                                 phba->sli4_hba.max_cfg_param.rpi_base,
9871                                 phba->sli4_hba.max_cfg_param.max_rpi,
9872                                 phba->sli4_hba.max_cfg_param.max_fcfi,
9873                                 phba->sli4_hba.max_cfg_param.max_eq,
9874                                 phba->sli4_hba.max_cfg_param.max_cq,
9875                                 phba->sli4_hba.max_cfg_param.max_wq,
9876                                 phba->sli4_hba.max_cfg_param.max_rq,
9877                                 phba->lmt);
9878
9879                 /*
9880                  * Calculate queue resources based on how
9881                  * many WQ/CQ/EQs are available.
9882                  */
9883                 qmin = phba->sli4_hba.max_cfg_param.max_wq;
9884                 if (phba->sli4_hba.max_cfg_param.max_cq < qmin)
9885                         qmin = phba->sli4_hba.max_cfg_param.max_cq;
9886                 if (phba->sli4_hba.max_cfg_param.max_eq < qmin)
9887                         qmin = phba->sli4_hba.max_cfg_param.max_eq;
9888                 /*
9889                  * Whats left after this can go toward NVME / FCP.
9890                  * The minus 4 accounts for ELS, NVME LS, MBOX
9891                  * plus one extra. When configured for
9892                  * NVMET, FCP io channel WQs are not created.
9893                  */
9894                 qmin -= 4;
9895
9896                 /* Check to see if there is enough for NVME */
9897                 if ((phba->cfg_irq_chann > qmin) ||
9898                     (phba->cfg_hdw_queue > qmin)) {
9899                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
9900                                         "2005 Reducing Queues - "
9901                                         "FW resource limitation: "
9902                                         "WQ %d CQ %d EQ %d: min %d: "
9903                                         "IRQ %d HDWQ %d\n",
9904                                         phba->sli4_hba.max_cfg_param.max_wq,
9905                                         phba->sli4_hba.max_cfg_param.max_cq,
9906                                         phba->sli4_hba.max_cfg_param.max_eq,
9907                                         qmin, phba->cfg_irq_chann,
9908                                         phba->cfg_hdw_queue);
9909
9910                         if (phba->cfg_irq_chann > qmin)
9911                                 phba->cfg_irq_chann = qmin;
9912                         if (phba->cfg_hdw_queue > qmin)
9913                                 phba->cfg_hdw_queue = qmin;
9914                 }
9915         }
9916
9917         if (rc)
9918                 goto read_cfg_out;
9919
9920         /* Update link speed if forced link speed is supported */
9921         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9922         if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
9923                 forced_link_speed =
9924                         bf_get(lpfc_mbx_rd_conf_link_speed, rd_config);
9925                 if (forced_link_speed) {
9926                         phba->hba_flag |= HBA_FORCED_LINK_SPEED;
9927
9928                         switch (forced_link_speed) {
9929                         case LINK_SPEED_1G:
9930                                 phba->cfg_link_speed =
9931                                         LPFC_USER_LINK_SPEED_1G;
9932                                 break;
9933                         case LINK_SPEED_2G:
9934                                 phba->cfg_link_speed =
9935                                         LPFC_USER_LINK_SPEED_2G;
9936                                 break;
9937                         case LINK_SPEED_4G:
9938                                 phba->cfg_link_speed =
9939                                         LPFC_USER_LINK_SPEED_4G;
9940                                 break;
9941                         case LINK_SPEED_8G:
9942                                 phba->cfg_link_speed =
9943                                         LPFC_USER_LINK_SPEED_8G;
9944                                 break;
9945                         case LINK_SPEED_10G:
9946                                 phba->cfg_link_speed =
9947                                         LPFC_USER_LINK_SPEED_10G;
9948                                 break;
9949                         case LINK_SPEED_16G:
9950                                 phba->cfg_link_speed =
9951                                         LPFC_USER_LINK_SPEED_16G;
9952                                 break;
9953                         case LINK_SPEED_32G:
9954                                 phba->cfg_link_speed =
9955                                         LPFC_USER_LINK_SPEED_32G;
9956                                 break;
9957                         case LINK_SPEED_64G:
9958                                 phba->cfg_link_speed =
9959                                         LPFC_USER_LINK_SPEED_64G;
9960                                 break;
9961                         case 0xffff:
9962                                 phba->cfg_link_speed =
9963                                         LPFC_USER_LINK_SPEED_AUTO;
9964                                 break;
9965                         default:
9966                                 lpfc_printf_log(phba, KERN_ERR,
9967                                                 LOG_TRACE_EVENT,
9968                                                 "0047 Unrecognized link "
9969                                                 "speed : %d\n",
9970                                                 forced_link_speed);
9971                                 phba->cfg_link_speed =
9972                                         LPFC_USER_LINK_SPEED_AUTO;
9973                         }
9974                 }
9975         }
9976
9977         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
9978         length = phba->sli4_hba.max_cfg_param.max_xri -
9979                         lpfc_sli4_get_els_iocb_cnt(phba);
9980         if (phba->cfg_hba_queue_depth > length) {
9981                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
9982                                 "3361 HBA queue depth changed from %d to %d\n",
9983                                 phba->cfg_hba_queue_depth, length);
9984                 phba->cfg_hba_queue_depth = length;
9985         }
9986
9987         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
9988             LPFC_SLI_INTF_IF_TYPE_2)
9989                 goto read_cfg_out;
9990
9991         /* get the pf# and vf# for SLI4 if_type 2 port */
9992         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
9993                   sizeof(struct lpfc_sli4_cfg_mhdr));
9994         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
9995                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
9996                          length, LPFC_SLI4_MBX_EMBED);
9997
9998         rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
9999         shdr = (union lpfc_sli4_cfg_shdr *)
10000                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
10001         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10002         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10003         if (rc2 || shdr_status || shdr_add_status) {
10004                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10005                                 "3026 Mailbox failed , mbxCmd x%x "
10006                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
10007                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
10008                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
10009                 goto read_cfg_out;
10010         }
10011
10012         /* search for fc_fcoe resrouce descriptor */
10013         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
10014
10015         pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0];
10016         desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0;
10017         length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc);
10018         if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD)
10019                 length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH;
10020         else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH)
10021                 goto read_cfg_out;
10022
10023         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
10024                 desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i);
10025                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
10026                     bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) {
10027                         phba->sli4_hba.iov.pf_number =
10028                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
10029                         phba->sli4_hba.iov.vf_number =
10030                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
10031                         break;
10032                 }
10033         }
10034
10035         if (i < LPFC_RSRC_DESC_MAX_NUM)
10036                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10037                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
10038                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
10039                                 phba->sli4_hba.iov.vf_number);
10040         else
10041                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10042                                 "3028 GET_FUNCTION_CONFIG: failed to find "
10043                                 "Resource Descriptor:x%x\n",
10044                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
10045
10046 read_cfg_out:
10047         mempool_free(pmb, phba->mbox_mem_pool);
10048         return rc;
10049 }
10050
10051 /**
10052  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
10053  * @phba: pointer to lpfc hba data structure.
10054  *
10055  * This routine is invoked to setup the port-side endian order when
10056  * the port if_type is 0.  This routine has no function for other
10057  * if_types.
10058  *
10059  * Return codes
10060  *      0 - successful
10061  *      -ENOMEM - No available memory
10062  *      -EIO - The mailbox failed to complete successfully.
10063  **/
10064 static int
10065 lpfc_setup_endian_order(struct lpfc_hba *phba)
10066 {
10067         LPFC_MBOXQ_t *mboxq;
10068         uint32_t if_type, rc = 0;
10069         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
10070                                       HOST_ENDIAN_HIGH_WORD1};
10071
10072         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10073         switch (if_type) {
10074         case LPFC_SLI_INTF_IF_TYPE_0:
10075                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
10076                                                        GFP_KERNEL);
10077                 if (!mboxq) {
10078                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10079                                         "0492 Unable to allocate memory for "
10080                                         "issuing SLI_CONFIG_SPECIAL mailbox "
10081                                         "command\n");
10082                         return -ENOMEM;
10083                 }
10084
10085                 /*
10086                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
10087                  * two words to contain special data values and no other data.
10088                  */
10089                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
10090                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
10091                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10092                 if (rc != MBX_SUCCESS) {
10093                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10094                                         "0493 SLI_CONFIG_SPECIAL mailbox "
10095                                         "failed with status x%x\n",
10096                                         rc);
10097                         rc = -EIO;
10098                 }
10099                 mempool_free(mboxq, phba->mbox_mem_pool);
10100                 break;
10101         case LPFC_SLI_INTF_IF_TYPE_6:
10102         case LPFC_SLI_INTF_IF_TYPE_2:
10103         case LPFC_SLI_INTF_IF_TYPE_1:
10104         default:
10105                 break;
10106         }
10107         return rc;
10108 }
10109
10110 /**
10111  * lpfc_sli4_queue_verify - Verify and update EQ counts
10112  * @phba: pointer to lpfc hba data structure.
10113  *
10114  * This routine is invoked to check the user settable queue counts for EQs.
10115  * After this routine is called the counts will be set to valid values that
10116  * adhere to the constraints of the system's interrupt vectors and the port's
10117  * queue resources.
10118  *
10119  * Return codes
10120  *      0 - successful
10121  *      -ENOMEM - No available memory
10122  **/
10123 static int
10124 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
10125 {
10126         /*
10127          * Sanity check for configured queue parameters against the run-time
10128          * device parameters
10129          */
10130
10131         if (phba->nvmet_support) {
10132                 if (phba->cfg_hdw_queue < phba->cfg_nvmet_mrq)
10133                         phba->cfg_nvmet_mrq = phba->cfg_hdw_queue;
10134                 if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX)
10135                         phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX;
10136         }
10137
10138         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10139                         "2574 IO channels: hdwQ %d IRQ %d MRQ: %d\n",
10140                         phba->cfg_hdw_queue, phba->cfg_irq_chann,
10141                         phba->cfg_nvmet_mrq);
10142
10143         /* Get EQ depth from module parameter, fake the default for now */
10144         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10145         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10146
10147         /* Get CQ depth from module parameter, fake the default for now */
10148         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10149         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10150         return 0;
10151 }
10152
10153 static int
10154 lpfc_alloc_io_wq_cq(struct lpfc_hba *phba, int idx)
10155 {
10156         struct lpfc_queue *qdesc;
10157         u32 wqesize;
10158         int cpu;
10159
10160         cpu = lpfc_find_cpu_handle(phba, idx, LPFC_FIND_BY_HDWQ);
10161         /* Create Fast Path IO CQs */
10162         if (phba->enab_exp_wqcq_pages)
10163                 /* Increase the CQ size when WQEs contain an embedded cdb */
10164                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10165                                               phba->sli4_hba.cq_esize,
10166                                               LPFC_CQE_EXP_COUNT, cpu);
10167
10168         else
10169                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10170                                               phba->sli4_hba.cq_esize,
10171                                               phba->sli4_hba.cq_ecount, cpu);
10172         if (!qdesc) {
10173                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10174                                 "0499 Failed allocate fast-path IO CQ (%d)\n",
10175                                 idx);
10176                 return 1;
10177         }
10178         qdesc->qe_valid = 1;
10179         qdesc->hdwq = idx;
10180         qdesc->chann = cpu;
10181         phba->sli4_hba.hdwq[idx].io_cq = qdesc;
10182
10183         /* Create Fast Path IO WQs */
10184         if (phba->enab_exp_wqcq_pages) {
10185                 /* Increase the WQ size when WQEs contain an embedded cdb */
10186                 wqesize = (phba->fcp_embed_io) ?
10187                         LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize;
10188                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE,
10189                                               wqesize,
10190                                               LPFC_WQE_EXP_COUNT, cpu);
10191         } else
10192                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10193                                               phba->sli4_hba.wq_esize,
10194                                               phba->sli4_hba.wq_ecount, cpu);
10195
10196         if (!qdesc) {
10197                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10198                                 "0503 Failed allocate fast-path IO WQ (%d)\n",
10199                                 idx);
10200                 return 1;
10201         }
10202         qdesc->hdwq = idx;
10203         qdesc->chann = cpu;
10204         phba->sli4_hba.hdwq[idx].io_wq = qdesc;
10205         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10206         return 0;
10207 }
10208
10209 /**
10210  * lpfc_sli4_queue_create - Create all the SLI4 queues
10211  * @phba: pointer to lpfc hba data structure.
10212  *
10213  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
10214  * operation. For each SLI4 queue type, the parameters such as queue entry
10215  * count (queue depth) shall be taken from the module parameter. For now,
10216  * we just use some constant number as place holder.
10217  *
10218  * Return codes
10219  *      0 - successful
10220  *      -ENOMEM - No availble memory
10221  *      -EIO - The mailbox failed to complete successfully.
10222  **/
10223 int
10224 lpfc_sli4_queue_create(struct lpfc_hba *phba)
10225 {
10226         struct lpfc_queue *qdesc;
10227         int idx, cpu, eqcpu;
10228         struct lpfc_sli4_hdw_queue *qp;
10229         struct lpfc_vector_map_info *cpup;
10230         struct lpfc_vector_map_info *eqcpup;
10231         struct lpfc_eq_intr_info *eqi;
10232
10233         /*
10234          * Create HBA Record arrays.
10235          * Both NVME and FCP will share that same vectors / EQs
10236          */
10237         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
10238         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
10239         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
10240         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
10241         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
10242         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
10243         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
10244         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
10245         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
10246         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
10247
10248         if (!phba->sli4_hba.hdwq) {
10249                 phba->sli4_hba.hdwq = kcalloc(
10250                         phba->cfg_hdw_queue, sizeof(struct lpfc_sli4_hdw_queue),
10251                         GFP_KERNEL);
10252                 if (!phba->sli4_hba.hdwq) {
10253                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10254                                         "6427 Failed allocate memory for "
10255                                         "fast-path Hardware Queue array\n");
10256                         goto out_error;
10257                 }
10258                 /* Prepare hardware queues to take IO buffers */
10259                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10260                         qp = &phba->sli4_hba.hdwq[idx];
10261                         spin_lock_init(&qp->io_buf_list_get_lock);
10262                         spin_lock_init(&qp->io_buf_list_put_lock);
10263                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_get);
10264                         INIT_LIST_HEAD(&qp->lpfc_io_buf_list_put);
10265                         qp->get_io_bufs = 0;
10266                         qp->put_io_bufs = 0;
10267                         qp->total_io_bufs = 0;
10268                         spin_lock_init(&qp->abts_io_buf_list_lock);
10269                         INIT_LIST_HEAD(&qp->lpfc_abts_io_buf_list);
10270                         qp->abts_scsi_io_bufs = 0;
10271                         qp->abts_nvme_io_bufs = 0;
10272                         INIT_LIST_HEAD(&qp->sgl_list);
10273                         INIT_LIST_HEAD(&qp->cmd_rsp_buf_list);
10274                         spin_lock_init(&qp->hdwq_lock);
10275                 }
10276         }
10277
10278         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10279                 if (phba->nvmet_support) {
10280                         phba->sli4_hba.nvmet_cqset = kcalloc(
10281                                         phba->cfg_nvmet_mrq,
10282                                         sizeof(struct lpfc_queue *),
10283                                         GFP_KERNEL);
10284                         if (!phba->sli4_hba.nvmet_cqset) {
10285                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10286                                         "3121 Fail allocate memory for "
10287                                         "fast-path CQ set array\n");
10288                                 goto out_error;
10289                         }
10290                         phba->sli4_hba.nvmet_mrq_hdr = kcalloc(
10291                                         phba->cfg_nvmet_mrq,
10292                                         sizeof(struct lpfc_queue *),
10293                                         GFP_KERNEL);
10294                         if (!phba->sli4_hba.nvmet_mrq_hdr) {
10295                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10296                                         "3122 Fail allocate memory for "
10297                                         "fast-path RQ set hdr array\n");
10298                                 goto out_error;
10299                         }
10300                         phba->sli4_hba.nvmet_mrq_data = kcalloc(
10301                                         phba->cfg_nvmet_mrq,
10302                                         sizeof(struct lpfc_queue *),
10303                                         GFP_KERNEL);
10304                         if (!phba->sli4_hba.nvmet_mrq_data) {
10305                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10306                                         "3124 Fail allocate memory for "
10307                                         "fast-path RQ set data array\n");
10308                                 goto out_error;
10309                         }
10310                 }
10311         }
10312
10313         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10314
10315         /* Create HBA Event Queues (EQs) */
10316         for_each_present_cpu(cpu) {
10317                 /* We only want to create 1 EQ per vector, even though
10318                  * multiple CPUs might be using that vector. so only
10319                  * selects the CPUs that are LPFC_CPU_FIRST_IRQ.
10320                  */
10321                 cpup = &phba->sli4_hba.cpu_map[cpu];
10322                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10323                         continue;
10324
10325                 /* Get a ptr to the Hardware Queue associated with this CPU */
10326                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10327
10328                 /* Allocate an EQ */
10329                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10330                                               phba->sli4_hba.eq_esize,
10331                                               phba->sli4_hba.eq_ecount, cpu);
10332                 if (!qdesc) {
10333                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10334                                         "0497 Failed allocate EQ (%d)\n",
10335                                         cpup->hdwq);
10336                         goto out_error;
10337                 }
10338                 qdesc->qe_valid = 1;
10339                 qdesc->hdwq = cpup->hdwq;
10340                 qdesc->chann = cpu; /* First CPU this EQ is affinitized to */
10341                 qdesc->last_cpu = qdesc->chann;
10342
10343                 /* Save the allocated EQ in the Hardware Queue */
10344                 qp->hba_eq = qdesc;
10345
10346                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, qdesc->last_cpu);
10347                 list_add(&qdesc->cpu_list, &eqi->list);
10348         }
10349
10350         /* Now we need to populate the other Hardware Queues, that share
10351          * an IRQ vector, with the associated EQ ptr.
10352          */
10353         for_each_present_cpu(cpu) {
10354                 cpup = &phba->sli4_hba.cpu_map[cpu];
10355
10356                 /* Check for EQ already allocated in previous loop */
10357                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
10358                         continue;
10359
10360                 /* Check for multiple CPUs per hdwq */
10361                 qp = &phba->sli4_hba.hdwq[cpup->hdwq];
10362                 if (qp->hba_eq)
10363                         continue;
10364
10365                 /* We need to share an EQ for this hdwq */
10366                 eqcpu = lpfc_find_cpu_handle(phba, cpup->eq, LPFC_FIND_BY_EQ);
10367                 eqcpup = &phba->sli4_hba.cpu_map[eqcpu];
10368                 qp->hba_eq = phba->sli4_hba.hdwq[eqcpup->hdwq].hba_eq;
10369         }
10370
10371         /* Allocate IO Path SLI4 CQ/WQs */
10372         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10373                 if (lpfc_alloc_io_wq_cq(phba, idx))
10374                         goto out_error;
10375         }
10376
10377         if (phba->nvmet_support) {
10378                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10379                         cpu = lpfc_find_cpu_handle(phba, idx,
10380                                                    LPFC_FIND_BY_HDWQ);
10381                         qdesc = lpfc_sli4_queue_alloc(phba,
10382                                                       LPFC_DEFAULT_PAGE_SIZE,
10383                                                       phba->sli4_hba.cq_esize,
10384                                                       phba->sli4_hba.cq_ecount,
10385                                                       cpu);
10386                         if (!qdesc) {
10387                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10388                                                 "3142 Failed allocate NVME "
10389                                                 "CQ Set (%d)\n", idx);
10390                                 goto out_error;
10391                         }
10392                         qdesc->qe_valid = 1;
10393                         qdesc->hdwq = idx;
10394                         qdesc->chann = cpu;
10395                         phba->sli4_hba.nvmet_cqset[idx] = qdesc;
10396                 }
10397         }
10398
10399         /*
10400          * Create Slow Path Completion Queues (CQs)
10401          */
10402
10403         cpu = lpfc_find_cpu_handle(phba, 0, LPFC_FIND_BY_EQ);
10404         /* Create slow-path Mailbox Command Complete Queue */
10405         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10406                                       phba->sli4_hba.cq_esize,
10407                                       phba->sli4_hba.cq_ecount, cpu);
10408         if (!qdesc) {
10409                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10410                                 "0500 Failed allocate slow-path mailbox CQ\n");
10411                 goto out_error;
10412         }
10413         qdesc->qe_valid = 1;
10414         phba->sli4_hba.mbx_cq = qdesc;
10415
10416         /* Create slow-path ELS Complete Queue */
10417         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10418                                       phba->sli4_hba.cq_esize,
10419                                       phba->sli4_hba.cq_ecount, cpu);
10420         if (!qdesc) {
10421                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10422                                 "0501 Failed allocate slow-path ELS CQ\n");
10423                 goto out_error;
10424         }
10425         qdesc->qe_valid = 1;
10426         qdesc->chann = cpu;
10427         phba->sli4_hba.els_cq = qdesc;
10428
10429
10430         /*
10431          * Create Slow Path Work Queues (WQs)
10432          */
10433
10434         /* Create Mailbox Command Queue */
10435
10436         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10437                                       phba->sli4_hba.mq_esize,
10438                                       phba->sli4_hba.mq_ecount, cpu);
10439         if (!qdesc) {
10440                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10441                                 "0505 Failed allocate slow-path MQ\n");
10442                 goto out_error;
10443         }
10444         qdesc->chann = cpu;
10445         phba->sli4_hba.mbx_wq = qdesc;
10446
10447         /*
10448          * Create ELS Work Queues
10449          */
10450
10451         /* Create slow-path ELS Work Queue */
10452         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10453                                       phba->sli4_hba.wq_esize,
10454                                       phba->sli4_hba.wq_ecount, cpu);
10455         if (!qdesc) {
10456                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10457                                 "0504 Failed allocate slow-path ELS WQ\n");
10458                 goto out_error;
10459         }
10460         qdesc->chann = cpu;
10461         phba->sli4_hba.els_wq = qdesc;
10462         list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10463
10464         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10465                 /* Create NVME LS Complete Queue */
10466                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10467                                               phba->sli4_hba.cq_esize,
10468                                               phba->sli4_hba.cq_ecount, cpu);
10469                 if (!qdesc) {
10470                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10471                                         "6079 Failed allocate NVME LS CQ\n");
10472                         goto out_error;
10473                 }
10474                 qdesc->chann = cpu;
10475                 qdesc->qe_valid = 1;
10476                 phba->sli4_hba.nvmels_cq = qdesc;
10477
10478                 /* Create NVME LS Work Queue */
10479                 qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10480                                               phba->sli4_hba.wq_esize,
10481                                               phba->sli4_hba.wq_ecount, cpu);
10482                 if (!qdesc) {
10483                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10484                                         "6080 Failed allocate NVME LS WQ\n");
10485                         goto out_error;
10486                 }
10487                 qdesc->chann = cpu;
10488                 phba->sli4_hba.nvmels_wq = qdesc;
10489                 list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list);
10490         }
10491
10492         /*
10493          * Create Receive Queue (RQ)
10494          */
10495
10496         /* Create Receive Queue for header */
10497         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10498                                       phba->sli4_hba.rq_esize,
10499                                       phba->sli4_hba.rq_ecount, cpu);
10500         if (!qdesc) {
10501                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10502                                 "0506 Failed allocate receive HRQ\n");
10503                 goto out_error;
10504         }
10505         phba->sli4_hba.hdr_rq = qdesc;
10506
10507         /* Create Receive Queue for data */
10508         qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE,
10509                                       phba->sli4_hba.rq_esize,
10510                                       phba->sli4_hba.rq_ecount, cpu);
10511         if (!qdesc) {
10512                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10513                                 "0507 Failed allocate receive DRQ\n");
10514                 goto out_error;
10515         }
10516         phba->sli4_hba.dat_rq = qdesc;
10517
10518         if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) &&
10519             phba->nvmet_support) {
10520                 for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) {
10521                         cpu = lpfc_find_cpu_handle(phba, idx,
10522                                                    LPFC_FIND_BY_HDWQ);
10523                         /* Create NVMET Receive Queue for header */
10524                         qdesc = lpfc_sli4_queue_alloc(phba,
10525                                                       LPFC_DEFAULT_PAGE_SIZE,
10526                                                       phba->sli4_hba.rq_esize,
10527                                                       LPFC_NVMET_RQE_DEF_COUNT,
10528                                                       cpu);
10529                         if (!qdesc) {
10530                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10531                                                 "3146 Failed allocate "
10532                                                 "receive HRQ\n");
10533                                 goto out_error;
10534                         }
10535                         qdesc->hdwq = idx;
10536                         phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc;
10537
10538                         /* Only needed for header of RQ pair */
10539                         qdesc->rqbp = kzalloc_node(sizeof(*qdesc->rqbp),
10540                                                    GFP_KERNEL,
10541                                                    cpu_to_node(cpu));
10542                         if (qdesc->rqbp == NULL) {
10543                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10544                                                 "6131 Failed allocate "
10545                                                 "Header RQBP\n");
10546                                 goto out_error;
10547                         }
10548
10549                         /* Put list in known state in case driver load fails. */
10550                         INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list);
10551
10552                         /* Create NVMET Receive Queue for data */
10553                         qdesc = lpfc_sli4_queue_alloc(phba,
10554                                                       LPFC_DEFAULT_PAGE_SIZE,
10555                                                       phba->sli4_hba.rq_esize,
10556                                                       LPFC_NVMET_RQE_DEF_COUNT,
10557                                                       cpu);
10558                         if (!qdesc) {
10559                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10560                                                 "3156 Failed allocate "
10561                                                 "receive DRQ\n");
10562                                 goto out_error;
10563                         }
10564                         qdesc->hdwq = idx;
10565                         phba->sli4_hba.nvmet_mrq_data[idx] = qdesc;
10566                 }
10567         }
10568
10569         /* Clear NVME stats */
10570         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
10571                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10572                         memset(&phba->sli4_hba.hdwq[idx].nvme_cstat, 0,
10573                                sizeof(phba->sli4_hba.hdwq[idx].nvme_cstat));
10574                 }
10575         }
10576
10577         /* Clear SCSI stats */
10578         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) {
10579                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10580                         memset(&phba->sli4_hba.hdwq[idx].scsi_cstat, 0,
10581                                sizeof(phba->sli4_hba.hdwq[idx].scsi_cstat));
10582                 }
10583         }
10584
10585         return 0;
10586
10587 out_error:
10588         lpfc_sli4_queue_destroy(phba);
10589         return -ENOMEM;
10590 }
10591
10592 static inline void
10593 __lpfc_sli4_release_queue(struct lpfc_queue **qp)
10594 {
10595         if (*qp != NULL) {
10596                 lpfc_sli4_queue_free(*qp);
10597                 *qp = NULL;
10598         }
10599 }
10600
10601 static inline void
10602 lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max)
10603 {
10604         int idx;
10605
10606         if (*qs == NULL)
10607                 return;
10608
10609         for (idx = 0; idx < max; idx++)
10610                 __lpfc_sli4_release_queue(&(*qs)[idx]);
10611
10612         kfree(*qs);
10613         *qs = NULL;
10614 }
10615
10616 static inline void
10617 lpfc_sli4_release_hdwq(struct lpfc_hba *phba)
10618 {
10619         struct lpfc_sli4_hdw_queue *hdwq;
10620         struct lpfc_queue *eq;
10621         uint32_t idx;
10622
10623         hdwq = phba->sli4_hba.hdwq;
10624
10625         /* Loop thru all Hardware Queues */
10626         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
10627                 /* Free the CQ/WQ corresponding to the Hardware Queue */
10628                 lpfc_sli4_queue_free(hdwq[idx].io_cq);
10629                 lpfc_sli4_queue_free(hdwq[idx].io_wq);
10630                 hdwq[idx].hba_eq = NULL;
10631                 hdwq[idx].io_cq = NULL;
10632                 hdwq[idx].io_wq = NULL;
10633                 if (phba->cfg_xpsgl && !phba->nvmet_support)
10634                         lpfc_free_sgl_per_hdwq(phba, &hdwq[idx]);
10635                 lpfc_free_cmd_rsp_buf_per_hdwq(phba, &hdwq[idx]);
10636         }
10637         /* Loop thru all IRQ vectors */
10638         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
10639                 /* Free the EQ corresponding to the IRQ vector */
10640                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
10641                 lpfc_sli4_queue_free(eq);
10642                 phba->sli4_hba.hba_eq_hdl[idx].eq = NULL;
10643         }
10644 }
10645
10646 /**
10647  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
10648  * @phba: pointer to lpfc hba data structure.
10649  *
10650  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
10651  * operation.
10652  *
10653  * Return codes
10654  *      0 - successful
10655  *      -ENOMEM - No available memory
10656  *      -EIO - The mailbox failed to complete successfully.
10657  **/
10658 void
10659 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
10660 {
10661         /*
10662          * Set FREE_INIT before beginning to free the queues.
10663          * Wait until the users of queues to acknowledge to
10664          * release queues by clearing FREE_WAIT.
10665          */
10666         spin_lock_irq(&phba->hbalock);
10667         phba->sli.sli_flag |= LPFC_QUEUE_FREE_INIT;
10668         while (phba->sli.sli_flag & LPFC_QUEUE_FREE_WAIT) {
10669                 spin_unlock_irq(&phba->hbalock);
10670                 msleep(20);
10671                 spin_lock_irq(&phba->hbalock);
10672         }
10673         spin_unlock_irq(&phba->hbalock);
10674
10675         lpfc_sli4_cleanup_poll_list(phba);
10676
10677         /* Release HBA eqs */
10678         if (phba->sli4_hba.hdwq)
10679                 lpfc_sli4_release_hdwq(phba);
10680
10681         if (phba->nvmet_support) {
10682                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset,
10683                                          phba->cfg_nvmet_mrq);
10684
10685                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr,
10686                                          phba->cfg_nvmet_mrq);
10687                 lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data,
10688                                          phba->cfg_nvmet_mrq);
10689         }
10690
10691         /* Release mailbox command work queue */
10692         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq);
10693
10694         /* Release ELS work queue */
10695         __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq);
10696
10697         /* Release ELS work queue */
10698         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq);
10699
10700         /* Release unsolicited receive queue */
10701         __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq);
10702         __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq);
10703
10704         /* Release ELS complete queue */
10705         __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq);
10706
10707         /* Release NVME LS complete queue */
10708         __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq);
10709
10710         /* Release mailbox command complete queue */
10711         __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq);
10712
10713         /* Everything on this list has been freed */
10714         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list);
10715
10716         /* Done with freeing the queues */
10717         spin_lock_irq(&phba->hbalock);
10718         phba->sli.sli_flag &= ~LPFC_QUEUE_FREE_INIT;
10719         spin_unlock_irq(&phba->hbalock);
10720 }
10721
10722 int
10723 lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq)
10724 {
10725         struct lpfc_rqb *rqbp;
10726         struct lpfc_dmabuf *h_buf;
10727         struct rqb_dmabuf *rqb_buffer;
10728
10729         rqbp = rq->rqbp;
10730         while (!list_empty(&rqbp->rqb_buffer_list)) {
10731                 list_remove_head(&rqbp->rqb_buffer_list, h_buf,
10732                                  struct lpfc_dmabuf, list);
10733
10734                 rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf);
10735                 (rqbp->rqb_free_buffer)(phba, rqb_buffer);
10736                 rqbp->buffer_count--;
10737         }
10738         return 1;
10739 }
10740
10741 static int
10742 lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq,
10743         struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map,
10744         int qidx, uint32_t qtype)
10745 {
10746         struct lpfc_sli_ring *pring;
10747         int rc;
10748
10749         if (!eq || !cq || !wq) {
10750                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10751                         "6085 Fast-path %s (%d) not allocated\n",
10752                         ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx);
10753                 return -ENOMEM;
10754         }
10755
10756         /* create the Cq first */
10757         rc = lpfc_cq_create(phba, cq, eq,
10758                         (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype);
10759         if (rc) {
10760                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10761                                 "6086 Failed setup of CQ (%d), rc = 0x%x\n",
10762                                 qidx, (uint32_t)rc);
10763                 return rc;
10764         }
10765
10766         if (qtype != LPFC_MBOX) {
10767                 /* Setup cq_map for fast lookup */
10768                 if (cq_map)
10769                         *cq_map = cq->queue_id;
10770
10771                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10772                         "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n",
10773                         qidx, cq->queue_id, qidx, eq->queue_id);
10774
10775                 /* create the wq */
10776                 rc = lpfc_wq_create(phba, wq, cq, qtype);
10777                 if (rc) {
10778                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10779                                 "4618 Fail setup fastpath WQ (%d), rc = 0x%x\n",
10780                                 qidx, (uint32_t)rc);
10781                         /* no need to tear down cq - caller will do so */
10782                         return rc;
10783                 }
10784
10785                 /* Bind this CQ/WQ to the NVME ring */
10786                 pring = wq->pring;
10787                 pring->sli.sli4.wqp = (void *)wq;
10788                 cq->pring = pring;
10789
10790                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10791                         "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n",
10792                         qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id);
10793         } else {
10794                 rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX);
10795                 if (rc) {
10796                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10797                                         "0539 Failed setup of slow-path MQ: "
10798                                         "rc = 0x%x\n", rc);
10799                         /* no need to tear down cq - caller will do so */
10800                         return rc;
10801                 }
10802
10803                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10804                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
10805                         phba->sli4_hba.mbx_wq->queue_id,
10806                         phba->sli4_hba.mbx_cq->queue_id);
10807         }
10808
10809         return 0;
10810 }
10811
10812 /**
10813  * lpfc_setup_cq_lookup - Setup the CQ lookup table
10814  * @phba: pointer to lpfc hba data structure.
10815  *
10816  * This routine will populate the cq_lookup table by all
10817  * available CQ queue_id's.
10818  **/
10819 static void
10820 lpfc_setup_cq_lookup(struct lpfc_hba *phba)
10821 {
10822         struct lpfc_queue *eq, *childq;
10823         int qidx;
10824
10825         memset(phba->sli4_hba.cq_lookup, 0,
10826                (sizeof(struct lpfc_queue *) * (phba->sli4_hba.cq_max + 1)));
10827         /* Loop thru all IRQ vectors */
10828         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10829                 /* Get the EQ corresponding to the IRQ vector */
10830                 eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
10831                 if (!eq)
10832                         continue;
10833                 /* Loop through all CQs associated with that EQ */
10834                 list_for_each_entry(childq, &eq->child_list, list) {
10835                         if (childq->queue_id > phba->sli4_hba.cq_max)
10836                                 continue;
10837                         if (childq->subtype == LPFC_IO)
10838                                 phba->sli4_hba.cq_lookup[childq->queue_id] =
10839                                         childq;
10840                 }
10841         }
10842 }
10843
10844 /**
10845  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
10846  * @phba: pointer to lpfc hba data structure.
10847  *
10848  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
10849  * operation.
10850  *
10851  * Return codes
10852  *      0 - successful
10853  *      -ENOMEM - No available memory
10854  *      -EIO - The mailbox failed to complete successfully.
10855  **/
10856 int
10857 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
10858 {
10859         uint32_t shdr_status, shdr_add_status;
10860         union lpfc_sli4_cfg_shdr *shdr;
10861         struct lpfc_vector_map_info *cpup;
10862         struct lpfc_sli4_hdw_queue *qp;
10863         LPFC_MBOXQ_t *mboxq;
10864         int qidx, cpu;
10865         uint32_t length, usdelay;
10866         int rc = -ENOMEM;
10867
10868         /* Check for dual-ULP support */
10869         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10870         if (!mboxq) {
10871                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10872                                 "3249 Unable to allocate memory for "
10873                                 "QUERY_FW_CFG mailbox command\n");
10874                 return -ENOMEM;
10875         }
10876         length = (sizeof(struct lpfc_mbx_query_fw_config) -
10877                   sizeof(struct lpfc_sli4_cfg_mhdr));
10878         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
10879                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
10880                          length, LPFC_SLI4_MBX_EMBED);
10881
10882         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
10883
10884         shdr = (union lpfc_sli4_cfg_shdr *)
10885                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
10886         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10887         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10888         if (shdr_status || shdr_add_status || rc) {
10889                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10890                                 "3250 QUERY_FW_CFG mailbox failed with status "
10891                                 "x%x add_status x%x, mbx status x%x\n",
10892                                 shdr_status, shdr_add_status, rc);
10893                 mempool_free(mboxq, phba->mbox_mem_pool);
10894                 rc = -ENXIO;
10895                 goto out_error;
10896         }
10897
10898         phba->sli4_hba.fw_func_mode =
10899                         mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode;
10900         phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode;
10901         phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode;
10902         phba->sli4_hba.physical_port =
10903                         mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port;
10904         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10905                         "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, "
10906                         "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode,
10907                         phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode);
10908
10909         mempool_free(mboxq, phba->mbox_mem_pool);
10910
10911         /*
10912          * Set up HBA Event Queues (EQs)
10913          */
10914         qp = phba->sli4_hba.hdwq;
10915
10916         /* Set up HBA event queue */
10917         if (!qp) {
10918                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10919                                 "3147 Fast-path EQs not allocated\n");
10920                 rc = -ENOMEM;
10921                 goto out_error;
10922         }
10923
10924         /* Loop thru all IRQ vectors */
10925         for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
10926                 /* Create HBA Event Queues (EQs) in order */
10927                 for_each_present_cpu(cpu) {
10928                         cpup = &phba->sli4_hba.cpu_map[cpu];
10929
10930                         /* Look for the CPU thats using that vector with
10931                          * LPFC_CPU_FIRST_IRQ set.
10932                          */
10933                         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
10934                                 continue;
10935                         if (qidx != cpup->eq)
10936                                 continue;
10937
10938                         /* Create an EQ for that vector */
10939                         rc = lpfc_eq_create(phba, qp[cpup->hdwq].hba_eq,
10940                                             phba->cfg_fcp_imax);
10941                         if (rc) {
10942                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10943                                                 "0523 Failed setup of fast-path"
10944                                                 " EQ (%d), rc = 0x%x\n",
10945                                                 cpup->eq, (uint32_t)rc);
10946                                 goto out_destroy;
10947                         }
10948
10949                         /* Save the EQ for that vector in the hba_eq_hdl */
10950                         phba->sli4_hba.hba_eq_hdl[cpup->eq].eq =
10951                                 qp[cpup->hdwq].hba_eq;
10952
10953                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10954                                         "2584 HBA EQ setup: queue[%d]-id=%d\n",
10955                                         cpup->eq,
10956                                         qp[cpup->hdwq].hba_eq->queue_id);
10957                 }
10958         }
10959
10960         /* Loop thru all Hardware Queues */
10961         for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
10962                 cpu = lpfc_find_cpu_handle(phba, qidx, LPFC_FIND_BY_HDWQ);
10963                 cpup = &phba->sli4_hba.cpu_map[cpu];
10964
10965                 /* Create the CQ/WQ corresponding to the Hardware Queue */
10966                 rc = lpfc_create_wq_cq(phba,
10967                                        phba->sli4_hba.hdwq[cpup->hdwq].hba_eq,
10968                                        qp[qidx].io_cq,
10969                                        qp[qidx].io_wq,
10970                                        &phba->sli4_hba.hdwq[qidx].io_cq_map,
10971                                        qidx,
10972                                        LPFC_IO);
10973                 if (rc) {
10974                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10975                                         "0535 Failed to setup fastpath "
10976                                         "IO WQ/CQ (%d), rc = 0x%x\n",
10977                                         qidx, (uint32_t)rc);
10978                         goto out_destroy;
10979                 }
10980         }
10981
10982         /*
10983          * Set up Slow Path Complete Queues (CQs)
10984          */
10985
10986         /* Set up slow-path MBOX CQ/MQ */
10987
10988         if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) {
10989                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
10990                                 "0528 %s not allocated\n",
10991                                 phba->sli4_hba.mbx_cq ?
10992                                 "Mailbox WQ" : "Mailbox CQ");
10993                 rc = -ENOMEM;
10994                 goto out_destroy;
10995         }
10996
10997         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
10998                                phba->sli4_hba.mbx_cq,
10999                                phba->sli4_hba.mbx_wq,
11000                                NULL, 0, LPFC_MBOX);
11001         if (rc) {
11002                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11003                         "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n",
11004                         (uint32_t)rc);
11005                 goto out_destroy;
11006         }
11007         if (phba->nvmet_support) {
11008                 if (!phba->sli4_hba.nvmet_cqset) {
11009                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11010                                         "3165 Fast-path NVME CQ Set "
11011                                         "array not allocated\n");
11012                         rc = -ENOMEM;
11013                         goto out_destroy;
11014                 }
11015                 if (phba->cfg_nvmet_mrq > 1) {
11016                         rc = lpfc_cq_create_set(phba,
11017                                         phba->sli4_hba.nvmet_cqset,
11018                                         qp,
11019                                         LPFC_WCQ, LPFC_NVMET);
11020                         if (rc) {
11021                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11022                                                 "3164 Failed setup of NVME CQ "
11023                                                 "Set, rc = 0x%x\n",
11024                                                 (uint32_t)rc);
11025                                 goto out_destroy;
11026                         }
11027                 } else {
11028                         /* Set up NVMET Receive Complete Queue */
11029                         rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0],
11030                                             qp[0].hba_eq,
11031                                             LPFC_WCQ, LPFC_NVMET);
11032                         if (rc) {
11033                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11034                                                 "6089 Failed setup NVMET CQ: "
11035                                                 "rc = 0x%x\n", (uint32_t)rc);
11036                                 goto out_destroy;
11037                         }
11038                         phba->sli4_hba.nvmet_cqset[0]->chann = 0;
11039
11040                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11041                                         "6090 NVMET CQ setup: cq-id=%d, "
11042                                         "parent eq-id=%d\n",
11043                                         phba->sli4_hba.nvmet_cqset[0]->queue_id,
11044                                         qp[0].hba_eq->queue_id);
11045                 }
11046         }
11047
11048         /* Set up slow-path ELS WQ/CQ */
11049         if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) {
11050                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11051                                 "0530 ELS %s not allocated\n",
11052                                 phba->sli4_hba.els_cq ? "WQ" : "CQ");
11053                 rc = -ENOMEM;
11054                 goto out_destroy;
11055         }
11056         rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11057                                phba->sli4_hba.els_cq,
11058                                phba->sli4_hba.els_wq,
11059                                NULL, 0, LPFC_ELS);
11060         if (rc) {
11061                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11062                                 "0525 Failed setup of ELS WQ/CQ: rc = 0x%x\n",
11063                                 (uint32_t)rc);
11064                 goto out_destroy;
11065         }
11066         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11067                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
11068                         phba->sli4_hba.els_wq->queue_id,
11069                         phba->sli4_hba.els_cq->queue_id);
11070
11071         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
11072                 /* Set up NVME LS Complete Queue */
11073                 if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) {
11074                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11075                                         "6091 LS %s not allocated\n",
11076                                         phba->sli4_hba.nvmels_cq ? "WQ" : "CQ");
11077                         rc = -ENOMEM;
11078                         goto out_destroy;
11079                 }
11080                 rc = lpfc_create_wq_cq(phba, qp[0].hba_eq,
11081                                        phba->sli4_hba.nvmels_cq,
11082                                        phba->sli4_hba.nvmels_wq,
11083                                        NULL, 0, LPFC_NVME_LS);
11084                 if (rc) {
11085                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11086                                         "0526 Failed setup of NVVME LS WQ/CQ: "
11087                                         "rc = 0x%x\n", (uint32_t)rc);
11088                         goto out_destroy;
11089                 }
11090
11091                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11092                                 "6096 ELS WQ setup: wq-id=%d, "
11093                                 "parent cq-id=%d\n",
11094                                 phba->sli4_hba.nvmels_wq->queue_id,
11095                                 phba->sli4_hba.nvmels_cq->queue_id);
11096         }
11097
11098         /*
11099          * Create NVMET Receive Queue (RQ)
11100          */
11101         if (phba->nvmet_support) {
11102                 if ((!phba->sli4_hba.nvmet_cqset) ||
11103                     (!phba->sli4_hba.nvmet_mrq_hdr) ||
11104                     (!phba->sli4_hba.nvmet_mrq_data)) {
11105                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11106                                         "6130 MRQ CQ Queues not "
11107                                         "allocated\n");
11108                         rc = -ENOMEM;
11109                         goto out_destroy;
11110                 }
11111                 if (phba->cfg_nvmet_mrq > 1) {
11112                         rc = lpfc_mrq_create(phba,
11113                                              phba->sli4_hba.nvmet_mrq_hdr,
11114                                              phba->sli4_hba.nvmet_mrq_data,
11115                                              phba->sli4_hba.nvmet_cqset,
11116                                              LPFC_NVMET);
11117                         if (rc) {
11118                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11119                                                 "6098 Failed setup of NVMET "
11120                                                 "MRQ: rc = 0x%x\n",
11121                                                 (uint32_t)rc);
11122                                 goto out_destroy;
11123                         }
11124
11125                 } else {
11126                         rc = lpfc_rq_create(phba,
11127                                             phba->sli4_hba.nvmet_mrq_hdr[0],
11128                                             phba->sli4_hba.nvmet_mrq_data[0],
11129                                             phba->sli4_hba.nvmet_cqset[0],
11130                                             LPFC_NVMET);
11131                         if (rc) {
11132                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11133                                                 "6057 Failed setup of NVMET "
11134                                                 "Receive Queue: rc = 0x%x\n",
11135                                                 (uint32_t)rc);
11136                                 goto out_destroy;
11137                         }
11138
11139                         lpfc_printf_log(
11140                                 phba, KERN_INFO, LOG_INIT,
11141                                 "6099 NVMET RQ setup: hdr-rq-id=%d, "
11142                                 "dat-rq-id=%d parent cq-id=%d\n",
11143                                 phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id,
11144                                 phba->sli4_hba.nvmet_mrq_data[0]->queue_id,
11145                                 phba->sli4_hba.nvmet_cqset[0]->queue_id);
11146
11147                 }
11148         }
11149
11150         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
11151                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11152                                 "0540 Receive Queue not allocated\n");
11153                 rc = -ENOMEM;
11154                 goto out_destroy;
11155         }
11156
11157         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
11158                             phba->sli4_hba.els_cq, LPFC_USOL);
11159         if (rc) {
11160                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11161                                 "0541 Failed setup of Receive Queue: "
11162                                 "rc = 0x%x\n", (uint32_t)rc);
11163                 goto out_destroy;
11164         }
11165
11166         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11167                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
11168                         "parent cq-id=%d\n",
11169                         phba->sli4_hba.hdr_rq->queue_id,
11170                         phba->sli4_hba.dat_rq->queue_id,
11171                         phba->sli4_hba.els_cq->queue_id);
11172
11173         if (phba->cfg_fcp_imax)
11174                 usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax;
11175         else
11176                 usdelay = 0;
11177
11178         for (qidx = 0; qidx < phba->cfg_irq_chann;
11179              qidx += LPFC_MAX_EQ_DELAY_EQID_CNT)
11180                 lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT,
11181                                          usdelay);
11182
11183         if (phba->sli4_hba.cq_max) {
11184                 kfree(phba->sli4_hba.cq_lookup);
11185                 phba->sli4_hba.cq_lookup = kcalloc((phba->sli4_hba.cq_max + 1),
11186                         sizeof(struct lpfc_queue *), GFP_KERNEL);
11187                 if (!phba->sli4_hba.cq_lookup) {
11188                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11189                                         "0549 Failed setup of CQ Lookup table: "
11190                                         "size 0x%x\n", phba->sli4_hba.cq_max);
11191                         rc = -ENOMEM;
11192                         goto out_destroy;
11193                 }
11194                 lpfc_setup_cq_lookup(phba);
11195         }
11196         return 0;
11197
11198 out_destroy:
11199         lpfc_sli4_queue_unset(phba);
11200 out_error:
11201         return rc;
11202 }
11203
11204 /**
11205  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
11206  * @phba: pointer to lpfc hba data structure.
11207  *
11208  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
11209  * operation.
11210  *
11211  * Return codes
11212  *      0 - successful
11213  *      -ENOMEM - No available memory
11214  *      -EIO - The mailbox failed to complete successfully.
11215  **/
11216 void
11217 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
11218 {
11219         struct lpfc_sli4_hdw_queue *qp;
11220         struct lpfc_queue *eq;
11221         int qidx;
11222
11223         /* Unset mailbox command work queue */
11224         if (phba->sli4_hba.mbx_wq)
11225                 lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
11226
11227         /* Unset NVME LS work queue */
11228         if (phba->sli4_hba.nvmels_wq)
11229                 lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq);
11230
11231         /* Unset ELS work queue */
11232         if (phba->sli4_hba.els_wq)
11233                 lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
11234
11235         /* Unset unsolicited receive queue */
11236         if (phba->sli4_hba.hdr_rq)
11237                 lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq,
11238                                 phba->sli4_hba.dat_rq);
11239
11240         /* Unset mailbox command complete queue */
11241         if (phba->sli4_hba.mbx_cq)
11242                 lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
11243
11244         /* Unset ELS complete queue */
11245         if (phba->sli4_hba.els_cq)
11246                 lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
11247
11248         /* Unset NVME LS complete queue */
11249         if (phba->sli4_hba.nvmels_cq)
11250                 lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq);
11251
11252         if (phba->nvmet_support) {
11253                 /* Unset NVMET MRQ queue */
11254                 if (phba->sli4_hba.nvmet_mrq_hdr) {
11255                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11256                                 lpfc_rq_destroy(
11257                                         phba,
11258                                         phba->sli4_hba.nvmet_mrq_hdr[qidx],
11259                                         phba->sli4_hba.nvmet_mrq_data[qidx]);
11260                 }
11261
11262                 /* Unset NVMET CQ Set complete queue */
11263                 if (phba->sli4_hba.nvmet_cqset) {
11264                         for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++)
11265                                 lpfc_cq_destroy(
11266                                         phba, phba->sli4_hba.nvmet_cqset[qidx]);
11267                 }
11268         }
11269
11270         /* Unset fast-path SLI4 queues */
11271         if (phba->sli4_hba.hdwq) {
11272                 /* Loop thru all Hardware Queues */
11273                 for (qidx = 0; qidx < phba->cfg_hdw_queue; qidx++) {
11274                         /* Destroy the CQ/WQ corresponding to Hardware Queue */
11275                         qp = &phba->sli4_hba.hdwq[qidx];
11276                         lpfc_wq_destroy(phba, qp->io_wq);
11277                         lpfc_cq_destroy(phba, qp->io_cq);
11278                 }
11279                 /* Loop thru all IRQ vectors */
11280                 for (qidx = 0; qidx < phba->cfg_irq_chann; qidx++) {
11281                         /* Destroy the EQ corresponding to the IRQ vector */
11282                         eq = phba->sli4_hba.hba_eq_hdl[qidx].eq;
11283                         lpfc_eq_destroy(phba, eq);
11284                 }
11285         }
11286
11287         kfree(phba->sli4_hba.cq_lookup);
11288         phba->sli4_hba.cq_lookup = NULL;
11289         phba->sli4_hba.cq_max = 0;
11290 }
11291
11292 /**
11293  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
11294  * @phba: pointer to lpfc hba data structure.
11295  *
11296  * This routine is invoked to allocate and set up a pool of completion queue
11297  * events. The body of the completion queue event is a completion queue entry
11298  * CQE. For now, this pool is used for the interrupt service routine to queue
11299  * the following HBA completion queue events for the worker thread to process:
11300  *   - Mailbox asynchronous events
11301  *   - Receive queue completion unsolicited events
11302  * Later, this can be used for all the slow-path events.
11303  *
11304  * Return codes
11305  *      0 - successful
11306  *      -ENOMEM - No available memory
11307  **/
11308 static int
11309 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
11310 {
11311         struct lpfc_cq_event *cq_event;
11312         int i;
11313
11314         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
11315                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
11316                 if (!cq_event)
11317                         goto out_pool_create_fail;
11318                 list_add_tail(&cq_event->list,
11319                               &phba->sli4_hba.sp_cqe_event_pool);
11320         }
11321         return 0;
11322
11323 out_pool_create_fail:
11324         lpfc_sli4_cq_event_pool_destroy(phba);
11325         return -ENOMEM;
11326 }
11327
11328 /**
11329  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
11330  * @phba: pointer to lpfc hba data structure.
11331  *
11332  * This routine is invoked to free the pool of completion queue events at
11333  * driver unload time. Note that, it is the responsibility of the driver
11334  * cleanup routine to free all the outstanding completion-queue events
11335  * allocated from this pool back into the pool before invoking this routine
11336  * to destroy the pool.
11337  **/
11338 static void
11339 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
11340 {
11341         struct lpfc_cq_event *cq_event, *next_cq_event;
11342
11343         list_for_each_entry_safe(cq_event, next_cq_event,
11344                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
11345                 list_del(&cq_event->list);
11346                 kfree(cq_event);
11347         }
11348 }
11349
11350 /**
11351  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11352  * @phba: pointer to lpfc hba data structure.
11353  *
11354  * This routine is the lock free version of the API invoked to allocate a
11355  * completion-queue event from the free pool.
11356  *
11357  * Return: Pointer to the newly allocated completion-queue event if successful
11358  *         NULL otherwise.
11359  **/
11360 struct lpfc_cq_event *
11361 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11362 {
11363         struct lpfc_cq_event *cq_event = NULL;
11364
11365         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
11366                          struct lpfc_cq_event, list);
11367         return cq_event;
11368 }
11369
11370 /**
11371  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
11372  * @phba: pointer to lpfc hba data structure.
11373  *
11374  * This routine is the lock version of the API invoked to allocate a
11375  * completion-queue event from the free pool.
11376  *
11377  * Return: Pointer to the newly allocated completion-queue event if successful
11378  *         NULL otherwise.
11379  **/
11380 struct lpfc_cq_event *
11381 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
11382 {
11383         struct lpfc_cq_event *cq_event;
11384         unsigned long iflags;
11385
11386         spin_lock_irqsave(&phba->hbalock, iflags);
11387         cq_event = __lpfc_sli4_cq_event_alloc(phba);
11388         spin_unlock_irqrestore(&phba->hbalock, iflags);
11389         return cq_event;
11390 }
11391
11392 /**
11393  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11394  * @phba: pointer to lpfc hba data structure.
11395  * @cq_event: pointer to the completion queue event to be freed.
11396  *
11397  * This routine is the lock free version of the API invoked to release a
11398  * completion-queue event back into the free pool.
11399  **/
11400 void
11401 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11402                              struct lpfc_cq_event *cq_event)
11403 {
11404         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
11405 }
11406
11407 /**
11408  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
11409  * @phba: pointer to lpfc hba data structure.
11410  * @cq_event: pointer to the completion queue event to be freed.
11411  *
11412  * This routine is the lock version of the API invoked to release a
11413  * completion-queue event back into the free pool.
11414  **/
11415 void
11416 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
11417                            struct lpfc_cq_event *cq_event)
11418 {
11419         unsigned long iflags;
11420         spin_lock_irqsave(&phba->hbalock, iflags);
11421         __lpfc_sli4_cq_event_release(phba, cq_event);
11422         spin_unlock_irqrestore(&phba->hbalock, iflags);
11423 }
11424
11425 /**
11426  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
11427  * @phba: pointer to lpfc hba data structure.
11428  *
11429  * This routine is to free all the pending completion-queue events to the
11430  * back into the free pool for device reset.
11431  **/
11432 static void
11433 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
11434 {
11435         LIST_HEAD(cq_event_list);
11436         struct lpfc_cq_event *cq_event;
11437         unsigned long iflags;
11438
11439         /* Retrieve all the pending WCQEs from pending WCQE lists */
11440
11441         /* Pending ELS XRI abort events */
11442         spin_lock_irqsave(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11443         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11444                          &cq_event_list);
11445         spin_unlock_irqrestore(&phba->sli4_hba.els_xri_abrt_list_lock, iflags);
11446
11447         /* Pending asynnc events */
11448         spin_lock_irqsave(&phba->sli4_hba.asynce_list_lock, iflags);
11449         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
11450                          &cq_event_list);
11451         spin_unlock_irqrestore(&phba->sli4_hba.asynce_list_lock, iflags);
11452
11453         while (!list_empty(&cq_event_list)) {
11454                 list_remove_head(&cq_event_list, cq_event,
11455                                  struct lpfc_cq_event, list);
11456                 lpfc_sli4_cq_event_release(phba, cq_event);
11457         }
11458 }
11459
11460 /**
11461  * lpfc_pci_function_reset - Reset pci function.
11462  * @phba: pointer to lpfc hba data structure.
11463  *
11464  * This routine is invoked to request a PCI function reset. It will destroys
11465  * all resources assigned to the PCI function which originates this request.
11466  *
11467  * Return codes
11468  *      0 - successful
11469  *      -ENOMEM - No available memory
11470  *      -EIO - The mailbox failed to complete successfully.
11471  **/
11472 int
11473 lpfc_pci_function_reset(struct lpfc_hba *phba)
11474 {
11475         LPFC_MBOXQ_t *mboxq;
11476         uint32_t rc = 0, if_type;
11477         uint32_t shdr_status, shdr_add_status;
11478         uint32_t rdy_chk;
11479         uint32_t port_reset = 0;
11480         union lpfc_sli4_cfg_shdr *shdr;
11481         struct lpfc_register reg_data;
11482         uint16_t devid;
11483
11484         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11485         switch (if_type) {
11486         case LPFC_SLI_INTF_IF_TYPE_0:
11487                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
11488                                                        GFP_KERNEL);
11489                 if (!mboxq) {
11490                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11491                                         "0494 Unable to allocate memory for "
11492                                         "issuing SLI_FUNCTION_RESET mailbox "
11493                                         "command\n");
11494                         return -ENOMEM;
11495                 }
11496
11497                 /* Setup PCI function reset mailbox-ioctl command */
11498                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
11499                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
11500                                  LPFC_SLI4_MBX_EMBED);
11501                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
11502                 shdr = (union lpfc_sli4_cfg_shdr *)
11503                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
11504                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11505                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
11506                                          &shdr->response);
11507                 mempool_free(mboxq, phba->mbox_mem_pool);
11508                 if (shdr_status || shdr_add_status || rc) {
11509                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11510                                         "0495 SLI_FUNCTION_RESET mailbox "
11511                                         "failed with status x%x add_status x%x,"
11512                                         " mbx status x%x\n",
11513                                         shdr_status, shdr_add_status, rc);
11514                         rc = -ENXIO;
11515                 }
11516                 break;
11517         case LPFC_SLI_INTF_IF_TYPE_2:
11518         case LPFC_SLI_INTF_IF_TYPE_6:
11519 wait:
11520                 /*
11521                  * Poll the Port Status Register and wait for RDY for
11522                  * up to 30 seconds. If the port doesn't respond, treat
11523                  * it as an error.
11524                  */
11525                 for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) {
11526                         if (lpfc_readl(phba->sli4_hba.u.if_type2.
11527                                 STATUSregaddr, &reg_data.word0)) {
11528                                 rc = -ENODEV;
11529                                 goto out;
11530                         }
11531                         if (bf_get(lpfc_sliport_status_rdy, &reg_data))
11532                                 break;
11533                         msleep(20);
11534                 }
11535
11536                 if (!bf_get(lpfc_sliport_status_rdy, &reg_data)) {
11537                         phba->work_status[0] = readl(
11538                                 phba->sli4_hba.u.if_type2.ERR1regaddr);
11539                         phba->work_status[1] = readl(
11540                                 phba->sli4_hba.u.if_type2.ERR2regaddr);
11541                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11542                                         "2890 Port not ready, port status reg "
11543                                         "0x%x error 1=0x%x, error 2=0x%x\n",
11544                                         reg_data.word0,
11545                                         phba->work_status[0],
11546                                         phba->work_status[1]);
11547                         rc = -ENODEV;
11548                         goto out;
11549                 }
11550
11551                 if (!port_reset) {
11552                         /*
11553                          * Reset the port now
11554                          */
11555                         reg_data.word0 = 0;
11556                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
11557                                LPFC_SLIPORT_LITTLE_ENDIAN);
11558                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
11559                                LPFC_SLIPORT_INIT_PORT);
11560                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
11561                                CTRLregaddr);
11562                         /* flush */
11563                         pci_read_config_word(phba->pcidev,
11564                                              PCI_DEVICE_ID, &devid);
11565
11566                         port_reset = 1;
11567                         msleep(20);
11568                         goto wait;
11569                 } else if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
11570                         rc = -ENODEV;
11571                         goto out;
11572                 }
11573                 break;
11574
11575         case LPFC_SLI_INTF_IF_TYPE_1:
11576         default:
11577                 break;
11578         }
11579
11580 out:
11581         /* Catch the not-ready port failure after a port reset. */
11582         if (rc) {
11583                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11584                                 "3317 HBA not functional: IP Reset Failed "
11585                                 "try: echo fw_reset > board_mode\n");
11586                 rc = -ENODEV;
11587         }
11588
11589         return rc;
11590 }
11591
11592 /**
11593  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
11594  * @phba: pointer to lpfc hba data structure.
11595  *
11596  * This routine is invoked to set up the PCI device memory space for device
11597  * with SLI-4 interface spec.
11598  *
11599  * Return codes
11600  *      0 - successful
11601  *      other values - error
11602  **/
11603 static int
11604 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
11605 {
11606         struct pci_dev *pdev = phba->pcidev;
11607         unsigned long bar0map_len, bar1map_len, bar2map_len;
11608         int error;
11609         uint32_t if_type;
11610
11611         if (!pdev)
11612                 return -ENODEV;
11613
11614         /* Set the device DMA mask size */
11615         error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
11616         if (error)
11617                 error = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
11618         if (error)
11619                 return error;
11620
11621         /*
11622          * The BARs and register set definitions and offset locations are
11623          * dependent on the if_type.
11624          */
11625         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
11626                                   &phba->sli4_hba.sli_intf.word0)) {
11627                 return -ENODEV;
11628         }
11629
11630         /* There is no SLI3 failback for SLI4 devices. */
11631         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
11632             LPFC_SLI_INTF_VALID) {
11633                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11634                                 "2894 SLI_INTF reg contents invalid "
11635                                 "sli_intf reg 0x%x\n",
11636                                 phba->sli4_hba.sli_intf.word0);
11637                 return -ENODEV;
11638         }
11639
11640         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11641         /*
11642          * Get the bus address of SLI4 device Bar regions and the
11643          * number of bytes required by each mapping. The mapping of the
11644          * particular PCI BARs regions is dependent on the type of
11645          * SLI4 device.
11646          */
11647         if (pci_resource_start(pdev, PCI_64BIT_BAR0)) {
11648                 phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0);
11649                 bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0);
11650
11651                 /*
11652                  * Map SLI4 PCI Config Space Register base to a kernel virtual
11653                  * addr
11654                  */
11655                 phba->sli4_hba.conf_regs_memmap_p =
11656                         ioremap(phba->pci_bar0_map, bar0map_len);
11657                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11658                         dev_printk(KERN_ERR, &pdev->dev,
11659                                    "ioremap failed for SLI4 PCI config "
11660                                    "registers.\n");
11661                         return -ENODEV;
11662                 }
11663                 phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p;
11664                 /* Set up BAR0 PCI config space register memory map */
11665                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11666         } else {
11667                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
11668                 bar0map_len = pci_resource_len(pdev, 1);
11669                 if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) {
11670                         dev_printk(KERN_ERR, &pdev->dev,
11671                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
11672                         return -ENODEV;
11673                 }
11674                 phba->sli4_hba.conf_regs_memmap_p =
11675                                 ioremap(phba->pci_bar0_map, bar0map_len);
11676                 if (!phba->sli4_hba.conf_regs_memmap_p) {
11677                         dev_printk(KERN_ERR, &pdev->dev,
11678                                 "ioremap failed for SLI4 PCI config "
11679                                 "registers.\n");
11680                         return -ENODEV;
11681                 }
11682                 lpfc_sli4_bar0_register_memmap(phba, if_type);
11683         }
11684
11685         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11686                 if (pci_resource_start(pdev, PCI_64BIT_BAR2)) {
11687                         /*
11688                          * Map SLI4 if type 0 HBA Control Register base to a
11689                          * kernel virtual address and setup the registers.
11690                          */
11691                         phba->pci_bar1_map = pci_resource_start(pdev,
11692                                                                 PCI_64BIT_BAR2);
11693                         bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11694                         phba->sli4_hba.ctrl_regs_memmap_p =
11695                                         ioremap(phba->pci_bar1_map,
11696                                                 bar1map_len);
11697                         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
11698                                 dev_err(&pdev->dev,
11699                                            "ioremap failed for SLI4 HBA "
11700                                             "control registers.\n");
11701                                 error = -ENOMEM;
11702                                 goto out_iounmap_conf;
11703                         }
11704                         phba->pci_bar2_memmap_p =
11705                                          phba->sli4_hba.ctrl_regs_memmap_p;
11706                         lpfc_sli4_bar1_register_memmap(phba, if_type);
11707                 } else {
11708                         error = -ENOMEM;
11709                         goto out_iounmap_conf;
11710                 }
11711         }
11712
11713         if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) &&
11714             (pci_resource_start(pdev, PCI_64BIT_BAR2))) {
11715                 /*
11716                  * Map SLI4 if type 6 HBA Doorbell Register base to a kernel
11717                  * virtual address and setup the registers.
11718                  */
11719                 phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2);
11720                 bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2);
11721                 phba->sli4_hba.drbl_regs_memmap_p =
11722                                 ioremap(phba->pci_bar1_map, bar1map_len);
11723                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
11724                         dev_err(&pdev->dev,
11725                            "ioremap failed for SLI4 HBA doorbell registers.\n");
11726                         error = -ENOMEM;
11727                         goto out_iounmap_conf;
11728                 }
11729                 phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p;
11730                 lpfc_sli4_bar1_register_memmap(phba, if_type);
11731         }
11732
11733         if (if_type == LPFC_SLI_INTF_IF_TYPE_0) {
11734                 if (pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11735                         /*
11736                          * Map SLI4 if type 0 HBA Doorbell Register base to
11737                          * a kernel virtual address and setup the registers.
11738                          */
11739                         phba->pci_bar2_map = pci_resource_start(pdev,
11740                                                                 PCI_64BIT_BAR4);
11741                         bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11742                         phba->sli4_hba.drbl_regs_memmap_p =
11743                                         ioremap(phba->pci_bar2_map,
11744                                                 bar2map_len);
11745                         if (!phba->sli4_hba.drbl_regs_memmap_p) {
11746                                 dev_err(&pdev->dev,
11747                                            "ioremap failed for SLI4 HBA"
11748                                            " doorbell registers.\n");
11749                                 error = -ENOMEM;
11750                                 goto out_iounmap_ctrl;
11751                         }
11752                         phba->pci_bar4_memmap_p =
11753                                         phba->sli4_hba.drbl_regs_memmap_p;
11754                         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
11755                         if (error)
11756                                 goto out_iounmap_all;
11757                 } else {
11758                         error = -ENOMEM;
11759                         goto out_iounmap_all;
11760                 }
11761         }
11762
11763         if (if_type == LPFC_SLI_INTF_IF_TYPE_6 &&
11764             pci_resource_start(pdev, PCI_64BIT_BAR4)) {
11765                 /*
11766                  * Map SLI4 if type 6 HBA DPP Register base to a kernel
11767                  * virtual address and setup the registers.
11768                  */
11769                 phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4);
11770                 bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4);
11771                 phba->sli4_hba.dpp_regs_memmap_p =
11772                                 ioremap(phba->pci_bar2_map, bar2map_len);
11773                 if (!phba->sli4_hba.dpp_regs_memmap_p) {
11774                         dev_err(&pdev->dev,
11775                            "ioremap failed for SLI4 HBA dpp registers.\n");
11776                         error = -ENOMEM;
11777                         goto out_iounmap_ctrl;
11778                 }
11779                 phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p;
11780         }
11781
11782         /* Set up the EQ/CQ register handeling functions now */
11783         switch (if_type) {
11784         case LPFC_SLI_INTF_IF_TYPE_0:
11785         case LPFC_SLI_INTF_IF_TYPE_2:
11786                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr;
11787                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_write_eq_db;
11788                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_write_cq_db;
11789                 break;
11790         case LPFC_SLI_INTF_IF_TYPE_6:
11791                 phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr;
11792                 phba->sli4_hba.sli4_write_eq_db = lpfc_sli4_if6_write_eq_db;
11793                 phba->sli4_hba.sli4_write_cq_db = lpfc_sli4_if6_write_cq_db;
11794                 break;
11795         default:
11796                 break;
11797         }
11798
11799         return 0;
11800
11801 out_iounmap_all:
11802         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11803 out_iounmap_ctrl:
11804         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11805 out_iounmap_conf:
11806         iounmap(phba->sli4_hba.conf_regs_memmap_p);
11807
11808         return error;
11809 }
11810
11811 /**
11812  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
11813  * @phba: pointer to lpfc hba data structure.
11814  *
11815  * This routine is invoked to unset the PCI device memory space for device
11816  * with SLI-4 interface spec.
11817  **/
11818 static void
11819 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
11820 {
11821         uint32_t if_type;
11822         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
11823
11824         switch (if_type) {
11825         case LPFC_SLI_INTF_IF_TYPE_0:
11826                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11827                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
11828                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11829                 break;
11830         case LPFC_SLI_INTF_IF_TYPE_2:
11831                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11832                 break;
11833         case LPFC_SLI_INTF_IF_TYPE_6:
11834                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
11835                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
11836                 if (phba->sli4_hba.dpp_regs_memmap_p)
11837                         iounmap(phba->sli4_hba.dpp_regs_memmap_p);
11838                 break;
11839         case LPFC_SLI_INTF_IF_TYPE_1:
11840         default:
11841                 dev_printk(KERN_ERR, &phba->pcidev->dev,
11842                            "FATAL - unsupported SLI4 interface type - %d\n",
11843                            if_type);
11844                 break;
11845         }
11846 }
11847
11848 /**
11849  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
11850  * @phba: pointer to lpfc hba data structure.
11851  *
11852  * This routine is invoked to enable the MSI-X interrupt vectors to device
11853  * with SLI-3 interface specs.
11854  *
11855  * Return codes
11856  *   0 - successful
11857  *   other values - error
11858  **/
11859 static int
11860 lpfc_sli_enable_msix(struct lpfc_hba *phba)
11861 {
11862         int rc;
11863         LPFC_MBOXQ_t *pmb;
11864
11865         /* Set up MSI-X multi-message vectors */
11866         rc = pci_alloc_irq_vectors(phba->pcidev,
11867                         LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX);
11868         if (rc < 0) {
11869                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11870                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
11871                 goto vec_fail_out;
11872         }
11873
11874         /*
11875          * Assign MSI-X vectors to interrupt handlers
11876          */
11877
11878         /* vector-0 is associated to slow-path handler */
11879         rc = request_irq(pci_irq_vector(phba->pcidev, 0),
11880                          &lpfc_sli_sp_intr_handler, 0,
11881                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
11882         if (rc) {
11883                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11884                                 "0421 MSI-X slow-path request_irq failed "
11885                                 "(%d)\n", rc);
11886                 goto msi_fail_out;
11887         }
11888
11889         /* vector-1 is associated to fast-path handler */
11890         rc = request_irq(pci_irq_vector(phba->pcidev, 1),
11891                          &lpfc_sli_fp_intr_handler, 0,
11892                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
11893
11894         if (rc) {
11895                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11896                                 "0429 MSI-X fast-path request_irq failed "
11897                                 "(%d)\n", rc);
11898                 goto irq_fail_out;
11899         }
11900
11901         /*
11902          * Configure HBA MSI-X attention conditions to messages
11903          */
11904         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11905
11906         if (!pmb) {
11907                 rc = -ENOMEM;
11908                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
11909                                 "0474 Unable to allocate memory for issuing "
11910                                 "MBOX_CONFIG_MSI command\n");
11911                 goto mem_fail_out;
11912         }
11913         rc = lpfc_config_msi(phba, pmb);
11914         if (rc)
11915                 goto mbx_fail_out;
11916         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
11917         if (rc != MBX_SUCCESS) {
11918                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
11919                                 "0351 Config MSI mailbox command failed, "
11920                                 "mbxCmd x%x, mbxStatus x%x\n",
11921                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
11922                 goto mbx_fail_out;
11923         }
11924
11925         /* Free memory allocated for mailbox command */
11926         mempool_free(pmb, phba->mbox_mem_pool);
11927         return rc;
11928
11929 mbx_fail_out:
11930         /* Free memory allocated for mailbox command */
11931         mempool_free(pmb, phba->mbox_mem_pool);
11932
11933 mem_fail_out:
11934         /* free the irq already requested */
11935         free_irq(pci_irq_vector(phba->pcidev, 1), phba);
11936
11937 irq_fail_out:
11938         /* free the irq already requested */
11939         free_irq(pci_irq_vector(phba->pcidev, 0), phba);
11940
11941 msi_fail_out:
11942         /* Unconfigure MSI-X capability structure */
11943         pci_free_irq_vectors(phba->pcidev);
11944
11945 vec_fail_out:
11946         return rc;
11947 }
11948
11949 /**
11950  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
11951  * @phba: pointer to lpfc hba data structure.
11952  *
11953  * This routine is invoked to enable the MSI interrupt mode to device with
11954  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
11955  * enable the MSI vector. The device driver is responsible for calling the
11956  * request_irq() to register MSI vector with a interrupt the handler, which
11957  * is done in this function.
11958  *
11959  * Return codes
11960  *      0 - successful
11961  *      other values - error
11962  */
11963 static int
11964 lpfc_sli_enable_msi(struct lpfc_hba *phba)
11965 {
11966         int rc;
11967
11968         rc = pci_enable_msi(phba->pcidev);
11969         if (!rc)
11970                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11971                                 "0462 PCI enable MSI mode success.\n");
11972         else {
11973                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11974                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
11975                 return rc;
11976         }
11977
11978         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
11979                          0, LPFC_DRIVER_NAME, phba);
11980         if (rc) {
11981                 pci_disable_msi(phba->pcidev);
11982                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11983                                 "0478 MSI request_irq failed (%d)\n", rc);
11984         }
11985         return rc;
11986 }
11987
11988 /**
11989  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
11990  * @phba: pointer to lpfc hba data structure.
11991  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
11992  *
11993  * This routine is invoked to enable device interrupt and associate driver's
11994  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
11995  * spec. Depends on the interrupt mode configured to the driver, the driver
11996  * will try to fallback from the configured interrupt mode to an interrupt
11997  * mode which is supported by the platform, kernel, and device in the order
11998  * of:
11999  * MSI-X -> MSI -> IRQ.
12000  *
12001  * Return codes
12002  *   0 - successful
12003  *   other values - error
12004  **/
12005 static uint32_t
12006 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
12007 {
12008         uint32_t intr_mode = LPFC_INTR_ERROR;
12009         int retval;
12010
12011         /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
12012         retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
12013         if (retval)
12014                 return intr_mode;
12015         phba->hba_flag &= ~HBA_NEEDS_CFG_PORT;
12016
12017         if (cfg_mode == 2) {
12018                 /* Now, try to enable MSI-X interrupt mode */
12019                 retval = lpfc_sli_enable_msix(phba);
12020                 if (!retval) {
12021                         /* Indicate initialization to MSI-X mode */
12022                         phba->intr_type = MSIX;
12023                         intr_mode = 2;
12024                 }
12025         }
12026
12027         /* Fallback to MSI if MSI-X initialization failed */
12028         if (cfg_mode >= 1 && phba->intr_type == NONE) {
12029                 retval = lpfc_sli_enable_msi(phba);
12030                 if (!retval) {
12031                         /* Indicate initialization to MSI mode */
12032                         phba->intr_type = MSI;
12033                         intr_mode = 1;
12034                 }
12035         }
12036
12037         /* Fallback to INTx if both MSI-X/MSI initalization failed */
12038         if (phba->intr_type == NONE) {
12039                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
12040                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
12041                 if (!retval) {
12042                         /* Indicate initialization to INTx mode */
12043                         phba->intr_type = INTx;
12044                         intr_mode = 0;
12045                 }
12046         }
12047         return intr_mode;
12048 }
12049
12050 /**
12051  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
12052  * @phba: pointer to lpfc hba data structure.
12053  *
12054  * This routine is invoked to disable device interrupt and disassociate the
12055  * driver's interrupt handler(s) from interrupt vector(s) to device with
12056  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
12057  * release the interrupt vector(s) for the message signaled interrupt.
12058  **/
12059 static void
12060 lpfc_sli_disable_intr(struct lpfc_hba *phba)
12061 {
12062         int nr_irqs, i;
12063
12064         if (phba->intr_type == MSIX)
12065                 nr_irqs = LPFC_MSIX_VECTORS;
12066         else
12067                 nr_irqs = 1;
12068
12069         for (i = 0; i < nr_irqs; i++)
12070                 free_irq(pci_irq_vector(phba->pcidev, i), phba);
12071         pci_free_irq_vectors(phba->pcidev);
12072
12073         /* Reset interrupt management states */
12074         phba->intr_type = NONE;
12075         phba->sli.slistat.sli_intr = 0;
12076 }
12077
12078 /**
12079  * lpfc_find_cpu_handle - Find the CPU that corresponds to the specified Queue
12080  * @phba: pointer to lpfc hba data structure.
12081  * @id: EQ vector index or Hardware Queue index
12082  * @match: LPFC_FIND_BY_EQ = match by EQ
12083  *         LPFC_FIND_BY_HDWQ = match by Hardware Queue
12084  * Return the CPU that matches the selection criteria
12085  */
12086 static uint16_t
12087 lpfc_find_cpu_handle(struct lpfc_hba *phba, uint16_t id, int match)
12088 {
12089         struct lpfc_vector_map_info *cpup;
12090         int cpu;
12091
12092         /* Loop through all CPUs */
12093         for_each_present_cpu(cpu) {
12094                 cpup = &phba->sli4_hba.cpu_map[cpu];
12095
12096                 /* If we are matching by EQ, there may be multiple CPUs using
12097                  * using the same vector, so select the one with
12098                  * LPFC_CPU_FIRST_IRQ set.
12099                  */
12100                 if ((match == LPFC_FIND_BY_EQ) &&
12101                     (cpup->flag & LPFC_CPU_FIRST_IRQ) &&
12102                     (cpup->eq == id))
12103                         return cpu;
12104
12105                 /* If matching by HDWQ, select the first CPU that matches */
12106                 if ((match == LPFC_FIND_BY_HDWQ) && (cpup->hdwq == id))
12107                         return cpu;
12108         }
12109         return 0;
12110 }
12111
12112 #ifdef CONFIG_X86
12113 /**
12114  * lpfc_find_hyper - Determine if the CPU map entry is hyper-threaded
12115  * @phba: pointer to lpfc hba data structure.
12116  * @cpu: CPU map index
12117  * @phys_id: CPU package physical id
12118  * @core_id: CPU core id
12119  */
12120 static int
12121 lpfc_find_hyper(struct lpfc_hba *phba, int cpu,
12122                 uint16_t phys_id, uint16_t core_id)
12123 {
12124         struct lpfc_vector_map_info *cpup;
12125         int idx;
12126
12127         for_each_present_cpu(idx) {
12128                 cpup = &phba->sli4_hba.cpu_map[idx];
12129                 /* Does the cpup match the one we are looking for */
12130                 if ((cpup->phys_id == phys_id) &&
12131                     (cpup->core_id == core_id) &&
12132                     (cpu != idx))
12133                         return 1;
12134         }
12135         return 0;
12136 }
12137 #endif
12138
12139 /*
12140  * lpfc_assign_eq_map_info - Assigns eq for vector_map structure
12141  * @phba: pointer to lpfc hba data structure.
12142  * @eqidx: index for eq and irq vector
12143  * @flag: flags to set for vector_map structure
12144  * @cpu: cpu used to index vector_map structure
12145  *
12146  * The routine assigns eq info into vector_map structure
12147  */
12148 static inline void
12149 lpfc_assign_eq_map_info(struct lpfc_hba *phba, uint16_t eqidx, uint16_t flag,
12150                         unsigned int cpu)
12151 {
12152         struct lpfc_vector_map_info *cpup = &phba->sli4_hba.cpu_map[cpu];
12153         struct lpfc_hba_eq_hdl *eqhdl = lpfc_get_eq_hdl(eqidx);
12154
12155         cpup->eq = eqidx;
12156         cpup->flag |= flag;
12157
12158         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12159                         "3336 Set Affinity: CPU %d irq %d eq %d flag x%x\n",
12160                         cpu, eqhdl->irq, cpup->eq, cpup->flag);
12161 }
12162
12163 /**
12164  * lpfc_cpu_map_array_init - Initialize cpu_map structure
12165  * @phba: pointer to lpfc hba data structure.
12166  *
12167  * The routine initializes the cpu_map array structure
12168  */
12169 static void
12170 lpfc_cpu_map_array_init(struct lpfc_hba *phba)
12171 {
12172         struct lpfc_vector_map_info *cpup;
12173         struct lpfc_eq_intr_info *eqi;
12174         int cpu;
12175
12176         for_each_possible_cpu(cpu) {
12177                 cpup = &phba->sli4_hba.cpu_map[cpu];
12178                 cpup->phys_id = LPFC_VECTOR_MAP_EMPTY;
12179                 cpup->core_id = LPFC_VECTOR_MAP_EMPTY;
12180                 cpup->hdwq = LPFC_VECTOR_MAP_EMPTY;
12181                 cpup->eq = LPFC_VECTOR_MAP_EMPTY;
12182                 cpup->flag = 0;
12183                 eqi = per_cpu_ptr(phba->sli4_hba.eq_info, cpu);
12184                 INIT_LIST_HEAD(&eqi->list);
12185                 eqi->icnt = 0;
12186         }
12187 }
12188
12189 /**
12190  * lpfc_hba_eq_hdl_array_init - Initialize hba_eq_hdl structure
12191  * @phba: pointer to lpfc hba data structure.
12192  *
12193  * The routine initializes the hba_eq_hdl array structure
12194  */
12195 static void
12196 lpfc_hba_eq_hdl_array_init(struct lpfc_hba *phba)
12197 {
12198         struct lpfc_hba_eq_hdl *eqhdl;
12199         int i;
12200
12201         for (i = 0; i < phba->cfg_irq_chann; i++) {
12202                 eqhdl = lpfc_get_eq_hdl(i);
12203                 eqhdl->irq = LPFC_VECTOR_MAP_EMPTY;
12204                 eqhdl->phba = phba;
12205         }
12206 }
12207
12208 /**
12209  * lpfc_cpu_affinity_check - Check vector CPU affinity mappings
12210  * @phba: pointer to lpfc hba data structure.
12211  * @vectors: number of msix vectors allocated.
12212  *
12213  * The routine will figure out the CPU affinity assignment for every
12214  * MSI-X vector allocated for the HBA.
12215  * In addition, the CPU to IO channel mapping will be calculated
12216  * and the phba->sli4_hba.cpu_map array will reflect this.
12217  */
12218 static void
12219 lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors)
12220 {
12221         int i, cpu, idx, next_idx, new_cpu, start_cpu, first_cpu;
12222         int max_phys_id, min_phys_id;
12223         int max_core_id, min_core_id;
12224         struct lpfc_vector_map_info *cpup;
12225         struct lpfc_vector_map_info *new_cpup;
12226 #ifdef CONFIG_X86
12227         struct cpuinfo_x86 *cpuinfo;
12228 #endif
12229 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12230         struct lpfc_hdwq_stat *c_stat;
12231 #endif
12232
12233         max_phys_id = 0;
12234         min_phys_id = LPFC_VECTOR_MAP_EMPTY;
12235         max_core_id = 0;
12236         min_core_id = LPFC_VECTOR_MAP_EMPTY;
12237
12238         /* Update CPU map with physical id and core id of each CPU */
12239         for_each_present_cpu(cpu) {
12240                 cpup = &phba->sli4_hba.cpu_map[cpu];
12241 #ifdef CONFIG_X86
12242                 cpuinfo = &cpu_data(cpu);
12243                 cpup->phys_id = cpuinfo->phys_proc_id;
12244                 cpup->core_id = cpuinfo->cpu_core_id;
12245                 if (lpfc_find_hyper(phba, cpu, cpup->phys_id, cpup->core_id))
12246                         cpup->flag |= LPFC_CPU_MAP_HYPER;
12247 #else
12248                 /* No distinction between CPUs for other platforms */
12249                 cpup->phys_id = 0;
12250                 cpup->core_id = cpu;
12251 #endif
12252
12253                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12254                                 "3328 CPU %d physid %d coreid %d flag x%x\n",
12255                                 cpu, cpup->phys_id, cpup->core_id, cpup->flag);
12256
12257                 if (cpup->phys_id > max_phys_id)
12258                         max_phys_id = cpup->phys_id;
12259                 if (cpup->phys_id < min_phys_id)
12260                         min_phys_id = cpup->phys_id;
12261
12262                 if (cpup->core_id > max_core_id)
12263                         max_core_id = cpup->core_id;
12264                 if (cpup->core_id < min_core_id)
12265                         min_core_id = cpup->core_id;
12266         }
12267
12268         /* After looking at each irq vector assigned to this pcidev, its
12269          * possible to see that not ALL CPUs have been accounted for.
12270          * Next we will set any unassigned (unaffinitized) cpu map
12271          * entries to a IRQ on the same phys_id.
12272          */
12273         first_cpu = cpumask_first(cpu_present_mask);
12274         start_cpu = first_cpu;
12275
12276         for_each_present_cpu(cpu) {
12277                 cpup = &phba->sli4_hba.cpu_map[cpu];
12278
12279                 /* Is this CPU entry unassigned */
12280                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12281                         /* Mark CPU as IRQ not assigned by the kernel */
12282                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12283
12284                         /* If so, find a new_cpup thats on the the SAME
12285                          * phys_id as cpup. start_cpu will start where we
12286                          * left off so all unassigned entries don't get assgined
12287                          * the IRQ of the first entry.
12288                          */
12289                         new_cpu = start_cpu;
12290                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12291                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12292                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12293                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY) &&
12294                                     (new_cpup->phys_id == cpup->phys_id))
12295                                         goto found_same;
12296                                 new_cpu = cpumask_next(
12297                                         new_cpu, cpu_present_mask);
12298                                 if (new_cpu == nr_cpumask_bits)
12299                                         new_cpu = first_cpu;
12300                         }
12301                         /* At this point, we leave the CPU as unassigned */
12302                         continue;
12303 found_same:
12304                         /* We found a matching phys_id, so copy the IRQ info */
12305                         cpup->eq = new_cpup->eq;
12306
12307                         /* Bump start_cpu to the next slot to minmize the
12308                          * chance of having multiple unassigned CPU entries
12309                          * selecting the same IRQ.
12310                          */
12311                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12312                         if (start_cpu == nr_cpumask_bits)
12313                                 start_cpu = first_cpu;
12314
12315                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12316                                         "3337 Set Affinity: CPU %d "
12317                                         "eq %d from peer cpu %d same "
12318                                         "phys_id (%d)\n",
12319                                         cpu, cpup->eq, new_cpu,
12320                                         cpup->phys_id);
12321                 }
12322         }
12323
12324         /* Set any unassigned cpu map entries to a IRQ on any phys_id */
12325         start_cpu = first_cpu;
12326
12327         for_each_present_cpu(cpu) {
12328                 cpup = &phba->sli4_hba.cpu_map[cpu];
12329
12330                 /* Is this entry unassigned */
12331                 if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) {
12332                         /* Mark it as IRQ not assigned by the kernel */
12333                         cpup->flag |= LPFC_CPU_MAP_UNASSIGN;
12334
12335                         /* If so, find a new_cpup thats on ANY phys_id
12336                          * as the cpup. start_cpu will start where we
12337                          * left off so all unassigned entries don't get
12338                          * assigned the IRQ of the first entry.
12339                          */
12340                         new_cpu = start_cpu;
12341                         for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12342                                 new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12343                                 if (!(new_cpup->flag & LPFC_CPU_MAP_UNASSIGN) &&
12344                                     (new_cpup->eq != LPFC_VECTOR_MAP_EMPTY))
12345                                         goto found_any;
12346                                 new_cpu = cpumask_next(
12347                                         new_cpu, cpu_present_mask);
12348                                 if (new_cpu == nr_cpumask_bits)
12349                                         new_cpu = first_cpu;
12350                         }
12351                         /* We should never leave an entry unassigned */
12352                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12353                                         "3339 Set Affinity: CPU %d "
12354                                         "eq %d UNASSIGNED\n",
12355                                         cpup->hdwq, cpup->eq);
12356                         continue;
12357 found_any:
12358                         /* We found an available entry, copy the IRQ info */
12359                         cpup->eq = new_cpup->eq;
12360
12361                         /* Bump start_cpu to the next slot to minmize the
12362                          * chance of having multiple unassigned CPU entries
12363                          * selecting the same IRQ.
12364                          */
12365                         start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12366                         if (start_cpu == nr_cpumask_bits)
12367                                 start_cpu = first_cpu;
12368
12369                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12370                                         "3338 Set Affinity: CPU %d "
12371                                         "eq %d from peer cpu %d (%d/%d)\n",
12372                                         cpu, cpup->eq, new_cpu,
12373                                         new_cpup->phys_id, new_cpup->core_id);
12374                 }
12375         }
12376
12377         /* Assign hdwq indices that are unique across all cpus in the map
12378          * that are also FIRST_CPUs.
12379          */
12380         idx = 0;
12381         for_each_present_cpu(cpu) {
12382                 cpup = &phba->sli4_hba.cpu_map[cpu];
12383
12384                 /* Only FIRST IRQs get a hdwq index assignment. */
12385                 if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12386                         continue;
12387
12388                 /* 1 to 1, the first LPFC_CPU_FIRST_IRQ cpus to a unique hdwq */
12389                 cpup->hdwq = idx;
12390                 idx++;
12391                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12392                                 "3333 Set Affinity: CPU %d (phys %d core %d): "
12393                                 "hdwq %d eq %d flg x%x\n",
12394                                 cpu, cpup->phys_id, cpup->core_id,
12395                                 cpup->hdwq, cpup->eq, cpup->flag);
12396         }
12397         /* Associate a hdwq with each cpu_map entry
12398          * This will be 1 to 1 - hdwq to cpu, unless there are less
12399          * hardware queues then CPUs. For that case we will just round-robin
12400          * the available hardware queues as they get assigned to CPUs.
12401          * The next_idx is the idx from the FIRST_CPU loop above to account
12402          * for irq_chann < hdwq.  The idx is used for round-robin assignments
12403          * and needs to start at 0.
12404          */
12405         next_idx = idx;
12406         start_cpu = 0;
12407         idx = 0;
12408         for_each_present_cpu(cpu) {
12409                 cpup = &phba->sli4_hba.cpu_map[cpu];
12410
12411                 /* FIRST cpus are already mapped. */
12412                 if (cpup->flag & LPFC_CPU_FIRST_IRQ)
12413                         continue;
12414
12415                 /* If the cfg_irq_chann < cfg_hdw_queue, set the hdwq
12416                  * of the unassigned cpus to the next idx so that all
12417                  * hdw queues are fully utilized.
12418                  */
12419                 if (next_idx < phba->cfg_hdw_queue) {
12420                         cpup->hdwq = next_idx;
12421                         next_idx++;
12422                         continue;
12423                 }
12424
12425                 /* Not a First CPU and all hdw_queues are used.  Reuse a
12426                  * Hardware Queue for another CPU, so be smart about it
12427                  * and pick one that has its IRQ/EQ mapped to the same phys_id
12428                  * (CPU package) and core_id.
12429                  */
12430                 new_cpu = start_cpu;
12431                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12432                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12433                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12434                             new_cpup->phys_id == cpup->phys_id &&
12435                             new_cpup->core_id == cpup->core_id) {
12436                                 goto found_hdwq;
12437                         }
12438                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12439                         if (new_cpu == nr_cpumask_bits)
12440                                 new_cpu = first_cpu;
12441                 }
12442
12443                 /* If we can't match both phys_id and core_id,
12444                  * settle for just a phys_id match.
12445                  */
12446                 new_cpu = start_cpu;
12447                 for (i = 0; i < phba->sli4_hba.num_present_cpu; i++) {
12448                         new_cpup = &phba->sli4_hba.cpu_map[new_cpu];
12449                         if (new_cpup->hdwq != LPFC_VECTOR_MAP_EMPTY &&
12450                             new_cpup->phys_id == cpup->phys_id)
12451                                 goto found_hdwq;
12452
12453                         new_cpu = cpumask_next(new_cpu, cpu_present_mask);
12454                         if (new_cpu == nr_cpumask_bits)
12455                                 new_cpu = first_cpu;
12456                 }
12457
12458                 /* Otherwise just round robin on cfg_hdw_queue */
12459                 cpup->hdwq = idx % phba->cfg_hdw_queue;
12460                 idx++;
12461                 goto logit;
12462  found_hdwq:
12463                 /* We found an available entry, copy the IRQ info */
12464                 start_cpu = cpumask_next(new_cpu, cpu_present_mask);
12465                 if (start_cpu == nr_cpumask_bits)
12466                         start_cpu = first_cpu;
12467                 cpup->hdwq = new_cpup->hdwq;
12468  logit:
12469                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12470                                 "3335 Set Affinity: CPU %d (phys %d core %d): "
12471                                 "hdwq %d eq %d flg x%x\n",
12472                                 cpu, cpup->phys_id, cpup->core_id,
12473                                 cpup->hdwq, cpup->eq, cpup->flag);
12474         }
12475
12476         /*
12477          * Initialize the cpu_map slots for not-present cpus in case
12478          * a cpu is hot-added. Perform a simple hdwq round robin assignment.
12479          */
12480         idx = 0;
12481         for_each_possible_cpu(cpu) {
12482                 cpup = &phba->sli4_hba.cpu_map[cpu];
12483 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12484                 c_stat = per_cpu_ptr(phba->sli4_hba.c_stat, cpu);
12485                 c_stat->hdwq_no = cpup->hdwq;
12486 #endif
12487                 if (cpup->hdwq != LPFC_VECTOR_MAP_EMPTY)
12488                         continue;
12489
12490                 cpup->hdwq = idx++ % phba->cfg_hdw_queue;
12491 #ifdef CONFIG_SCSI_LPFC_DEBUG_FS
12492                 c_stat->hdwq_no = cpup->hdwq;
12493 #endif
12494                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12495                                 "3340 Set Affinity: not present "
12496                                 "CPU %d hdwq %d\n",
12497                                 cpu, cpup->hdwq);
12498         }
12499
12500         /* The cpu_map array will be used later during initialization
12501          * when EQ / CQ / WQs are allocated and configured.
12502          */
12503         return;
12504 }
12505
12506 /**
12507  * lpfc_cpuhp_get_eq
12508  *
12509  * @phba:   pointer to lpfc hba data structure.
12510  * @cpu:    cpu going offline
12511  * @eqlist: eq list to append to
12512  */
12513 static int
12514 lpfc_cpuhp_get_eq(struct lpfc_hba *phba, unsigned int cpu,
12515                   struct list_head *eqlist)
12516 {
12517         const struct cpumask *maskp;
12518         struct lpfc_queue *eq;
12519         struct cpumask *tmp;
12520         u16 idx;
12521
12522         tmp = kzalloc(cpumask_size(), GFP_KERNEL);
12523         if (!tmp)
12524                 return -ENOMEM;
12525
12526         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12527                 maskp = pci_irq_get_affinity(phba->pcidev, idx);
12528                 if (!maskp)
12529                         continue;
12530                 /*
12531                  * if irq is not affinitized to the cpu going
12532                  * then we don't need to poll the eq attached
12533                  * to it.
12534                  */
12535                 if (!cpumask_and(tmp, maskp, cpumask_of(cpu)))
12536                         continue;
12537                 /* get the cpus that are online and are affini-
12538                  * tized to this irq vector.  If the count is
12539                  * more than 1 then cpuhp is not going to shut-
12540                  * down this vector.  Since this cpu has not
12541                  * gone offline yet, we need >1.
12542                  */
12543                 cpumask_and(tmp, maskp, cpu_online_mask);
12544                 if (cpumask_weight(tmp) > 1)
12545                         continue;
12546
12547                 /* Now that we have an irq to shutdown, get the eq
12548                  * mapped to this irq.  Note: multiple hdwq's in
12549                  * the software can share an eq, but eventually
12550                  * only eq will be mapped to this vector
12551                  */
12552                 eq = phba->sli4_hba.hba_eq_hdl[idx].eq;
12553                 list_add(&eq->_poll_list, eqlist);
12554         }
12555         kfree(tmp);
12556         return 0;
12557 }
12558
12559 static void __lpfc_cpuhp_remove(struct lpfc_hba *phba)
12560 {
12561         if (phba->sli_rev != LPFC_SLI_REV4)
12562                 return;
12563
12564         cpuhp_state_remove_instance_nocalls(lpfc_cpuhp_state,
12565                                             &phba->cpuhp);
12566         /*
12567          * unregistering the instance doesn't stop the polling
12568          * timer. Wait for the poll timer to retire.
12569          */
12570         synchronize_rcu();
12571         del_timer_sync(&phba->cpuhp_poll_timer);
12572 }
12573
12574 static void lpfc_cpuhp_remove(struct lpfc_hba *phba)
12575 {
12576         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
12577                 return;
12578
12579         __lpfc_cpuhp_remove(phba);
12580 }
12581
12582 static void lpfc_cpuhp_add(struct lpfc_hba *phba)
12583 {
12584         if (phba->sli_rev != LPFC_SLI_REV4)
12585                 return;
12586
12587         rcu_read_lock();
12588
12589         if (!list_empty(&phba->poll_list))
12590                 mod_timer(&phba->cpuhp_poll_timer,
12591                           jiffies + msecs_to_jiffies(LPFC_POLL_HB));
12592
12593         rcu_read_unlock();
12594
12595         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state,
12596                                          &phba->cpuhp);
12597 }
12598
12599 static int __lpfc_cpuhp_checks(struct lpfc_hba *phba, int *retval)
12600 {
12601         if (phba->pport->load_flag & FC_UNLOADING) {
12602                 *retval = -EAGAIN;
12603                 return true;
12604         }
12605
12606         if (phba->sli_rev != LPFC_SLI_REV4) {
12607                 *retval = 0;
12608                 return true;
12609         }
12610
12611         /* proceed with the hotplug */
12612         return false;
12613 }
12614
12615 /**
12616  * lpfc_irq_set_aff - set IRQ affinity
12617  * @eqhdl: EQ handle
12618  * @cpu: cpu to set affinity
12619  *
12620  **/
12621 static inline void
12622 lpfc_irq_set_aff(struct lpfc_hba_eq_hdl *eqhdl, unsigned int cpu)
12623 {
12624         cpumask_clear(&eqhdl->aff_mask);
12625         cpumask_set_cpu(cpu, &eqhdl->aff_mask);
12626         irq_set_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12627         irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
12628 }
12629
12630 /**
12631  * lpfc_irq_clear_aff - clear IRQ affinity
12632  * @eqhdl: EQ handle
12633  *
12634  **/
12635 static inline void
12636 lpfc_irq_clear_aff(struct lpfc_hba_eq_hdl *eqhdl)
12637 {
12638         cpumask_clear(&eqhdl->aff_mask);
12639         irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
12640 }
12641
12642 /**
12643  * lpfc_irq_rebalance - rebalances IRQ affinity according to cpuhp event
12644  * @phba: pointer to HBA context object.
12645  * @cpu: cpu going offline/online
12646  * @offline: true, cpu is going offline. false, cpu is coming online.
12647  *
12648  * If cpu is going offline, we'll try our best effort to find the next
12649  * online cpu on the phba's original_mask and migrate all offlining IRQ
12650  * affinities.
12651  *
12652  * If cpu is coming online, reaffinitize the IRQ back to the onlining cpu.
12653  *
12654  * Note: Call only if NUMA or NHT mode is enabled, otherwise rely on
12655  *       PCI_IRQ_AFFINITY to auto-manage IRQ affinity.
12656  *
12657  **/
12658 static void
12659 lpfc_irq_rebalance(struct lpfc_hba *phba, unsigned int cpu, bool offline)
12660 {
12661         struct lpfc_vector_map_info *cpup;
12662         struct cpumask *aff_mask;
12663         unsigned int cpu_select, cpu_next, idx;
12664         const struct cpumask *orig_mask;
12665
12666         if (phba->irq_chann_mode == NORMAL_MODE)
12667                 return;
12668
12669         orig_mask = &phba->sli4_hba.irq_aff_mask;
12670
12671         if (!cpumask_test_cpu(cpu, orig_mask))
12672                 return;
12673
12674         cpup = &phba->sli4_hba.cpu_map[cpu];
12675
12676         if (!(cpup->flag & LPFC_CPU_FIRST_IRQ))
12677                 return;
12678
12679         if (offline) {
12680                 /* Find next online CPU on original mask */
12681                 cpu_next = cpumask_next_wrap(cpu, orig_mask, cpu, true);
12682                 cpu_select = lpfc_next_online_cpu(orig_mask, cpu_next);
12683
12684                 /* Found a valid CPU */
12685                 if ((cpu_select < nr_cpu_ids) && (cpu_select != cpu)) {
12686                         /* Go through each eqhdl and ensure offlining
12687                          * cpu aff_mask is migrated
12688                          */
12689                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
12690                                 aff_mask = lpfc_get_aff_mask(idx);
12691
12692                                 /* Migrate affinity */
12693                                 if (cpumask_test_cpu(cpu, aff_mask))
12694                                         lpfc_irq_set_aff(lpfc_get_eq_hdl(idx),
12695                                                          cpu_select);
12696                         }
12697                 } else {
12698                         /* Rely on irqbalance if no online CPUs left on NUMA */
12699                         for (idx = 0; idx < phba->cfg_irq_chann; idx++)
12700                                 lpfc_irq_clear_aff(lpfc_get_eq_hdl(idx));
12701                 }
12702         } else {
12703                 /* Migrate affinity back to this CPU */
12704                 lpfc_irq_set_aff(lpfc_get_eq_hdl(cpup->eq), cpu);
12705         }
12706 }
12707
12708 static int lpfc_cpu_offline(unsigned int cpu, struct hlist_node *node)
12709 {
12710         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12711         struct lpfc_queue *eq, *next;
12712         LIST_HEAD(eqlist);
12713         int retval;
12714
12715         if (!phba) {
12716                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12717                 return 0;
12718         }
12719
12720         if (__lpfc_cpuhp_checks(phba, &retval))
12721                 return retval;
12722
12723         lpfc_irq_rebalance(phba, cpu, true);
12724
12725         retval = lpfc_cpuhp_get_eq(phba, cpu, &eqlist);
12726         if (retval)
12727                 return retval;
12728
12729         /* start polling on these eq's */
12730         list_for_each_entry_safe(eq, next, &eqlist, _poll_list) {
12731                 list_del_init(&eq->_poll_list);
12732                 lpfc_sli4_start_polling(eq);
12733         }
12734
12735         return 0;
12736 }
12737
12738 static int lpfc_cpu_online(unsigned int cpu, struct hlist_node *node)
12739 {
12740         struct lpfc_hba *phba = hlist_entry_safe(node, struct lpfc_hba, cpuhp);
12741         struct lpfc_queue *eq, *next;
12742         unsigned int n;
12743         int retval;
12744
12745         if (!phba) {
12746                 WARN_ONCE(!phba, "cpu: %u. phba:NULL", raw_smp_processor_id());
12747                 return 0;
12748         }
12749
12750         if (__lpfc_cpuhp_checks(phba, &retval))
12751                 return retval;
12752
12753         lpfc_irq_rebalance(phba, cpu, false);
12754
12755         list_for_each_entry_safe(eq, next, &phba->poll_list, _poll_list) {
12756                 n = lpfc_find_cpu_handle(phba, eq->hdwq, LPFC_FIND_BY_HDWQ);
12757                 if (n == cpu)
12758                         lpfc_sli4_stop_polling(eq);
12759         }
12760
12761         return 0;
12762 }
12763
12764 /**
12765  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
12766  * @phba: pointer to lpfc hba data structure.
12767  *
12768  * This routine is invoked to enable the MSI-X interrupt vectors to device
12769  * with SLI-4 interface spec.  It also allocates MSI-X vectors and maps them
12770  * to cpus on the system.
12771  *
12772  * When cfg_irq_numa is enabled, the adapter will only allocate vectors for
12773  * the number of cpus on the same numa node as this adapter.  The vectors are
12774  * allocated without requesting OS affinity mapping.  A vector will be
12775  * allocated and assigned to each online and offline cpu.  If the cpu is
12776  * online, then affinity will be set to that cpu.  If the cpu is offline, then
12777  * affinity will be set to the nearest peer cpu within the numa node that is
12778  * online.  If there are no online cpus within the numa node, affinity is not
12779  * assigned and the OS may do as it pleases. Note: cpu vector affinity mapping
12780  * is consistent with the way cpu online/offline is handled when cfg_irq_numa is
12781  * configured.
12782  *
12783  * If numa mode is not enabled and there is more than 1 vector allocated, then
12784  * the driver relies on the managed irq interface where the OS assigns vector to
12785  * cpu affinity.  The driver will then use that affinity mapping to setup its
12786  * cpu mapping table.
12787  *
12788  * Return codes
12789  * 0 - successful
12790  * other values - error
12791  **/
12792 static int
12793 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
12794 {
12795         int vectors, rc, index;
12796         char *name;
12797         const struct cpumask *aff_mask = NULL;
12798         unsigned int cpu = 0, cpu_cnt = 0, cpu_select = nr_cpu_ids;
12799         struct lpfc_vector_map_info *cpup;
12800         struct lpfc_hba_eq_hdl *eqhdl;
12801         const struct cpumask *maskp;
12802         unsigned int flags = PCI_IRQ_MSIX;
12803
12804         /* Set up MSI-X multi-message vectors */
12805         vectors = phba->cfg_irq_chann;
12806
12807         if (phba->irq_chann_mode != NORMAL_MODE)
12808                 aff_mask = &phba->sli4_hba.irq_aff_mask;
12809
12810         if (aff_mask) {
12811                 cpu_cnt = cpumask_weight(aff_mask);
12812                 vectors = min(phba->cfg_irq_chann, cpu_cnt);
12813
12814                 /* cpu: iterates over aff_mask including offline or online
12815                  * cpu_select: iterates over online aff_mask to set affinity
12816                  */
12817                 cpu = cpumask_first(aff_mask);
12818                 cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12819         } else {
12820                 flags |= PCI_IRQ_AFFINITY;
12821         }
12822
12823         rc = pci_alloc_irq_vectors(phba->pcidev, 1, vectors, flags);
12824         if (rc < 0) {
12825                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12826                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
12827                 goto vec_fail_out;
12828         }
12829         vectors = rc;
12830
12831         /* Assign MSI-X vectors to interrupt handlers */
12832         for (index = 0; index < vectors; index++) {
12833                 eqhdl = lpfc_get_eq_hdl(index);
12834                 name = eqhdl->handler_name;
12835                 memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ);
12836                 snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ,
12837                          LPFC_DRIVER_HANDLER_NAME"%d", index);
12838
12839                 eqhdl->idx = index;
12840                 rc = request_irq(pci_irq_vector(phba->pcidev, index),
12841                          &lpfc_sli4_hba_intr_handler, 0,
12842                          name, eqhdl);
12843                 if (rc) {
12844                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12845                                         "0486 MSI-X fast-path (%d) "
12846                                         "request_irq failed (%d)\n", index, rc);
12847                         goto cfg_fail_out;
12848                 }
12849
12850                 eqhdl->irq = pci_irq_vector(phba->pcidev, index);
12851
12852                 if (aff_mask) {
12853                         /* If found a neighboring online cpu, set affinity */
12854                         if (cpu_select < nr_cpu_ids)
12855                                 lpfc_irq_set_aff(eqhdl, cpu_select);
12856
12857                         /* Assign EQ to cpu_map */
12858                         lpfc_assign_eq_map_info(phba, index,
12859                                                 LPFC_CPU_FIRST_IRQ,
12860                                                 cpu);
12861
12862                         /* Iterate to next offline or online cpu in aff_mask */
12863                         cpu = cpumask_next(cpu, aff_mask);
12864
12865                         /* Find next online cpu in aff_mask to set affinity */
12866                         cpu_select = lpfc_next_online_cpu(aff_mask, cpu);
12867                 } else if (vectors == 1) {
12868                         cpu = cpumask_first(cpu_present_mask);
12869                         lpfc_assign_eq_map_info(phba, index, LPFC_CPU_FIRST_IRQ,
12870                                                 cpu);
12871                 } else {
12872                         maskp = pci_irq_get_affinity(phba->pcidev, index);
12873
12874                         /* Loop through all CPUs associated with vector index */
12875                         for_each_cpu_and(cpu, maskp, cpu_present_mask) {
12876                                 cpup = &phba->sli4_hba.cpu_map[cpu];
12877
12878                                 /* If this is the first CPU thats assigned to
12879                                  * this vector, set LPFC_CPU_FIRST_IRQ.
12880                                  *
12881                                  * With certain platforms its possible that irq
12882                                  * vectors are affinitized to all the cpu's.
12883                                  * This can result in each cpu_map.eq to be set
12884                                  * to the last vector, resulting in overwrite
12885                                  * of all the previous cpu_map.eq.  Ensure that
12886                                  * each vector receives a place in cpu_map.
12887                                  * Later call to lpfc_cpu_affinity_check will
12888                                  * ensure we are nicely balanced out.
12889                                  */
12890                                 if (cpup->eq != LPFC_VECTOR_MAP_EMPTY)
12891                                         continue;
12892                                 lpfc_assign_eq_map_info(phba, index,
12893                                                         LPFC_CPU_FIRST_IRQ,
12894                                                         cpu);
12895                                 break;
12896                         }
12897                 }
12898         }
12899
12900         if (vectors != phba->cfg_irq_chann) {
12901                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
12902                                 "3238 Reducing IO channels to match number of "
12903                                 "MSI-X vectors, requested %d got %d\n",
12904                                 phba->cfg_irq_chann, vectors);
12905                 if (phba->cfg_irq_chann > vectors)
12906                         phba->cfg_irq_chann = vectors;
12907         }
12908
12909         return rc;
12910
12911 cfg_fail_out:
12912         /* free the irq already requested */
12913         for (--index; index >= 0; index--) {
12914                 eqhdl = lpfc_get_eq_hdl(index);
12915                 lpfc_irq_clear_aff(eqhdl);
12916                 irq_set_affinity_hint(eqhdl->irq, NULL);
12917                 free_irq(eqhdl->irq, eqhdl);
12918         }
12919
12920         /* Unconfigure MSI-X capability structure */
12921         pci_free_irq_vectors(phba->pcidev);
12922
12923 vec_fail_out:
12924         return rc;
12925 }
12926
12927 /**
12928  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
12929  * @phba: pointer to lpfc hba data structure.
12930  *
12931  * This routine is invoked to enable the MSI interrupt mode to device with
12932  * SLI-4 interface spec. The kernel function pci_alloc_irq_vectors() is
12933  * called to enable the MSI vector. The device driver is responsible for
12934  * calling the request_irq() to register MSI vector with a interrupt the
12935  * handler, which is done in this function.
12936  *
12937  * Return codes
12938  *      0 - successful
12939  *      other values - error
12940  **/
12941 static int
12942 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
12943 {
12944         int rc, index;
12945         unsigned int cpu;
12946         struct lpfc_hba_eq_hdl *eqhdl;
12947
12948         rc = pci_alloc_irq_vectors(phba->pcidev, 1, 1,
12949                                    PCI_IRQ_MSI | PCI_IRQ_AFFINITY);
12950         if (rc > 0)
12951                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12952                                 "0487 PCI enable MSI mode success.\n");
12953         else {
12954                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12955                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
12956                 return rc ? rc : -1;
12957         }
12958
12959         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
12960                          0, LPFC_DRIVER_NAME, phba);
12961         if (rc) {
12962                 pci_free_irq_vectors(phba->pcidev);
12963                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
12964                                 "0490 MSI request_irq failed (%d)\n", rc);
12965                 return rc;
12966         }
12967
12968         eqhdl = lpfc_get_eq_hdl(0);
12969         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
12970
12971         cpu = cpumask_first(cpu_present_mask);
12972         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ, cpu);
12973
12974         for (index = 0; index < phba->cfg_irq_chann; index++) {
12975                 eqhdl = lpfc_get_eq_hdl(index);
12976                 eqhdl->idx = index;
12977         }
12978
12979         return 0;
12980 }
12981
12982 /**
12983  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
12984  * @phba: pointer to lpfc hba data structure.
12985  * @cfg_mode: Interrupt configuration mode (INTx, MSI or MSI-X).
12986  *
12987  * This routine is invoked to enable device interrupt and associate driver's
12988  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
12989  * interface spec. Depends on the interrupt mode configured to the driver,
12990  * the driver will try to fallback from the configured interrupt mode to an
12991  * interrupt mode which is supported by the platform, kernel, and device in
12992  * the order of:
12993  * MSI-X -> MSI -> IRQ.
12994  *
12995  * Return codes
12996  *      0 - successful
12997  *      other values - error
12998  **/
12999 static uint32_t
13000 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
13001 {
13002         uint32_t intr_mode = LPFC_INTR_ERROR;
13003         int retval, idx;
13004
13005         if (cfg_mode == 2) {
13006                 /* Preparation before conf_msi mbox cmd */
13007                 retval = 0;
13008                 if (!retval) {
13009                         /* Now, try to enable MSI-X interrupt mode */
13010                         retval = lpfc_sli4_enable_msix(phba);
13011                         if (!retval) {
13012                                 /* Indicate initialization to MSI-X mode */
13013                                 phba->intr_type = MSIX;
13014                                 intr_mode = 2;
13015                         }
13016                 }
13017         }
13018
13019         /* Fallback to MSI if MSI-X initialization failed */
13020         if (cfg_mode >= 1 && phba->intr_type == NONE) {
13021                 retval = lpfc_sli4_enable_msi(phba);
13022                 if (!retval) {
13023                         /* Indicate initialization to MSI mode */
13024                         phba->intr_type = MSI;
13025                         intr_mode = 1;
13026                 }
13027         }
13028
13029         /* Fallback to INTx if both MSI-X/MSI initalization failed */
13030         if (phba->intr_type == NONE) {
13031                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
13032                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
13033                 if (!retval) {
13034                         struct lpfc_hba_eq_hdl *eqhdl;
13035                         unsigned int cpu;
13036
13037                         /* Indicate initialization to INTx mode */
13038                         phba->intr_type = INTx;
13039                         intr_mode = 0;
13040
13041                         eqhdl = lpfc_get_eq_hdl(0);
13042                         eqhdl->irq = pci_irq_vector(phba->pcidev, 0);
13043
13044                         cpu = cpumask_first(cpu_present_mask);
13045                         lpfc_assign_eq_map_info(phba, 0, LPFC_CPU_FIRST_IRQ,
13046                                                 cpu);
13047                         for (idx = 0; idx < phba->cfg_irq_chann; idx++) {
13048                                 eqhdl = lpfc_get_eq_hdl(idx);
13049                                 eqhdl->idx = idx;
13050                         }
13051                 }
13052         }
13053         return intr_mode;
13054 }
13055
13056 /**
13057  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
13058  * @phba: pointer to lpfc hba data structure.
13059  *
13060  * This routine is invoked to disable device interrupt and disassociate
13061  * the driver's interrupt handler(s) from interrupt vector(s) to device
13062  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
13063  * will release the interrupt vector(s) for the message signaled interrupt.
13064  **/
13065 static void
13066 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
13067 {
13068         /* Disable the currently initialized interrupt mode */
13069         if (phba->intr_type == MSIX) {
13070                 int index;
13071                 struct lpfc_hba_eq_hdl *eqhdl;
13072
13073                 /* Free up MSI-X multi-message vectors */
13074                 for (index = 0; index < phba->cfg_irq_chann; index++) {
13075                         eqhdl = lpfc_get_eq_hdl(index);
13076                         lpfc_irq_clear_aff(eqhdl);
13077                         irq_set_affinity_hint(eqhdl->irq, NULL);
13078                         free_irq(eqhdl->irq, eqhdl);
13079                 }
13080         } else {
13081                 free_irq(phba->pcidev->irq, phba);
13082         }
13083
13084         pci_free_irq_vectors(phba->pcidev);
13085
13086         /* Reset interrupt management states */
13087         phba->intr_type = NONE;
13088         phba->sli.slistat.sli_intr = 0;
13089 }
13090
13091 /**
13092  * lpfc_unset_hba - Unset SLI3 hba device initialization
13093  * @phba: pointer to lpfc hba data structure.
13094  *
13095  * This routine is invoked to unset the HBA device initialization steps to
13096  * a device with SLI-3 interface spec.
13097  **/
13098 static void
13099 lpfc_unset_hba(struct lpfc_hba *phba)
13100 {
13101         struct lpfc_vport *vport = phba->pport;
13102         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
13103
13104         spin_lock_irq(shost->host_lock);
13105         vport->load_flag |= FC_UNLOADING;
13106         spin_unlock_irq(shost->host_lock);
13107
13108         kfree(phba->vpi_bmask);
13109         kfree(phba->vpi_ids);
13110
13111         lpfc_stop_hba_timers(phba);
13112
13113         phba->pport->work_port_events = 0;
13114
13115         lpfc_sli_hba_down(phba);
13116
13117         lpfc_sli_brdrestart(phba);
13118
13119         lpfc_sli_disable_intr(phba);
13120
13121         return;
13122 }
13123
13124 /**
13125  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
13126  * @phba: Pointer to HBA context object.
13127  *
13128  * This function is called in the SLI4 code path to wait for completion
13129  * of device's XRIs exchange busy. It will check the XRI exchange busy
13130  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
13131  * that, it will check the XRI exchange busy on outstanding FCP and ELS
13132  * I/Os every 30 seconds, log error message, and wait forever. Only when
13133  * all XRI exchange busy complete, the driver unload shall proceed with
13134  * invoking the function reset ioctl mailbox command to the CNA and the
13135  * the rest of the driver unload resource release.
13136  **/
13137 static void
13138 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
13139 {
13140         struct lpfc_sli4_hdw_queue *qp;
13141         int idx, ccnt;
13142         int wait_time = 0;
13143         int io_xri_cmpl = 1;
13144         int nvmet_xri_cmpl = 1;
13145         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13146
13147         /* Driver just aborted IOs during the hba_unset process.  Pause
13148          * here to give the HBA time to complete the IO and get entries
13149          * into the abts lists.
13150          */
13151         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5);
13152
13153         /* Wait for NVME pending IO to flush back to transport. */
13154         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13155                 lpfc_nvme_wait_for_io_drain(phba);
13156
13157         ccnt = 0;
13158         for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13159                 qp = &phba->sli4_hba.hdwq[idx];
13160                 io_xri_cmpl = list_empty(&qp->lpfc_abts_io_buf_list);
13161                 if (!io_xri_cmpl) /* if list is NOT empty */
13162                         ccnt++;
13163         }
13164         if (ccnt)
13165                 io_xri_cmpl = 0;
13166
13167         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13168                 nvmet_xri_cmpl =
13169                         list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13170         }
13171
13172         while (!els_xri_cmpl || !io_xri_cmpl || !nvmet_xri_cmpl) {
13173                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
13174                         if (!nvmet_xri_cmpl)
13175                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13176                                                 "6424 NVMET XRI exchange busy "
13177                                                 "wait time: %d seconds.\n",
13178                                                 wait_time/1000);
13179                         if (!io_xri_cmpl)
13180                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13181                                                 "6100 IO XRI exchange busy "
13182                                                 "wait time: %d seconds.\n",
13183                                                 wait_time/1000);
13184                         if (!els_xri_cmpl)
13185                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13186                                                 "2878 ELS XRI exchange busy "
13187                                                 "wait time: %d seconds.\n",
13188                                                 wait_time/1000);
13189                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
13190                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
13191                 } else {
13192                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
13193                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
13194                 }
13195
13196                 ccnt = 0;
13197                 for (idx = 0; idx < phba->cfg_hdw_queue; idx++) {
13198                         qp = &phba->sli4_hba.hdwq[idx];
13199                         io_xri_cmpl = list_empty(
13200                             &qp->lpfc_abts_io_buf_list);
13201                         if (!io_xri_cmpl) /* if list is NOT empty */
13202                                 ccnt++;
13203                 }
13204                 if (ccnt)
13205                         io_xri_cmpl = 0;
13206
13207                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13208                         nvmet_xri_cmpl = list_empty(
13209                                 &phba->sli4_hba.lpfc_abts_nvmet_ctx_list);
13210                 }
13211                 els_xri_cmpl =
13212                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
13213
13214         }
13215 }
13216
13217 /**
13218  * lpfc_sli4_hba_unset - Unset the fcoe hba
13219  * @phba: Pointer to HBA context object.
13220  *
13221  * This function is called in the SLI4 code path to reset the HBA's FCoE
13222  * function. The caller is not required to hold any lock. This routine
13223  * issues PCI function reset mailbox command to reset the FCoE function.
13224  * At the end of the function, it calls lpfc_hba_down_post function to
13225  * free any pending commands.
13226  **/
13227 static void
13228 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
13229 {
13230         int wait_cnt = 0;
13231         LPFC_MBOXQ_t *mboxq;
13232         struct pci_dev *pdev = phba->pcidev;
13233
13234         lpfc_stop_hba_timers(phba);
13235         hrtimer_cancel(&phba->cmf_timer);
13236
13237         if (phba->pport)
13238                 phba->sli4_hba.intr_enable = 0;
13239
13240         /*
13241          * Gracefully wait out the potential current outstanding asynchronous
13242          * mailbox command.
13243          */
13244
13245         /* First, block any pending async mailbox command from posted */
13246         spin_lock_irq(&phba->hbalock);
13247         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
13248         spin_unlock_irq(&phba->hbalock);
13249         /* Now, trying to wait it out if we can */
13250         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13251                 msleep(10);
13252                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
13253                         break;
13254         }
13255         /* Forcefully release the outstanding mailbox command if timed out */
13256         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
13257                 spin_lock_irq(&phba->hbalock);
13258                 mboxq = phba->sli.mbox_active;
13259                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
13260                 __lpfc_mbox_cmpl_put(phba, mboxq);
13261                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
13262                 phba->sli.mbox_active = NULL;
13263                 spin_unlock_irq(&phba->hbalock);
13264         }
13265
13266         /* Abort all iocbs associated with the hba */
13267         lpfc_sli_hba_iocb_abort(phba);
13268
13269         /* Wait for completion of device XRI exchange busy */
13270         lpfc_sli4_xri_exchange_busy_wait(phba);
13271
13272         /* per-phba callback de-registration for hotplug event */
13273         if (phba->pport)
13274                 lpfc_cpuhp_remove(phba);
13275
13276         /* Disable PCI subsystem interrupt */
13277         lpfc_sli4_disable_intr(phba);
13278
13279         /* Disable SR-IOV if enabled */
13280         if (phba->cfg_sriov_nr_virtfn)
13281                 pci_disable_sriov(pdev);
13282
13283         /* Stop kthread signal shall trigger work_done one more time */
13284         kthread_stop(phba->worker_thread);
13285
13286         /* Disable FW logging to host memory */
13287         lpfc_ras_stop_fwlog(phba);
13288
13289         /* Unset the queues shared with the hardware then release all
13290          * allocated resources.
13291          */
13292         lpfc_sli4_queue_unset(phba);
13293         lpfc_sli4_queue_destroy(phba);
13294
13295         /* Reset SLI4 HBA FCoE function */
13296         lpfc_pci_function_reset(phba);
13297
13298         /* Free RAS DMA memory */
13299         if (phba->ras_fwlog.ras_enabled)
13300                 lpfc_sli4_ras_dma_free(phba);
13301
13302         /* Stop the SLI4 device port */
13303         if (phba->pport)
13304                 phba->pport->work_port_events = 0;
13305 }
13306
13307 static uint32_t
13308 lpfc_cgn_crc32(uint32_t crc, u8 byte)
13309 {
13310         uint32_t msb = 0;
13311         uint32_t bit;
13312
13313         for (bit = 0; bit < 8; bit++) {
13314                 msb = (crc >> 31) & 1;
13315                 crc <<= 1;
13316
13317                 if (msb ^ (byte & 1)) {
13318                         crc ^= LPFC_CGN_CRC32_MAGIC_NUMBER;
13319                         crc |= 1;
13320                 }
13321                 byte >>= 1;
13322         }
13323         return crc;
13324 }
13325
13326 static uint32_t
13327 lpfc_cgn_reverse_bits(uint32_t wd)
13328 {
13329         uint32_t result = 0;
13330         uint32_t i;
13331
13332         for (i = 0; i < 32; i++) {
13333                 result <<= 1;
13334                 result |= (1 & (wd >> i));
13335         }
13336         return result;
13337 }
13338
13339 /*
13340  * The routine corresponds with the algorithm the HBA firmware
13341  * uses to validate the data integrity.
13342  */
13343 uint32_t
13344 lpfc_cgn_calc_crc32(void *ptr, uint32_t byteLen, uint32_t crc)
13345 {
13346         uint32_t  i;
13347         uint32_t result;
13348         uint8_t  *data = (uint8_t *)ptr;
13349
13350         for (i = 0; i < byteLen; ++i)
13351                 crc = lpfc_cgn_crc32(crc, data[i]);
13352
13353         result = ~lpfc_cgn_reverse_bits(crc);
13354         return result;
13355 }
13356
13357 void
13358 lpfc_init_congestion_buf(struct lpfc_hba *phba)
13359 {
13360         struct lpfc_cgn_info *cp;
13361         struct timespec64 cmpl_time;
13362         struct tm broken;
13363         uint16_t size;
13364         uint32_t crc;
13365
13366         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13367                         "6235 INIT Congestion Buffer %p\n", phba->cgn_i);
13368
13369         if (!phba->cgn_i)
13370                 return;
13371         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13372
13373         atomic_set(&phba->cgn_fabric_warn_cnt, 0);
13374         atomic_set(&phba->cgn_fabric_alarm_cnt, 0);
13375         atomic_set(&phba->cgn_sync_alarm_cnt, 0);
13376         atomic_set(&phba->cgn_sync_warn_cnt, 0);
13377
13378         atomic64_set(&phba->cgn_acqe_stat.alarm, 0);
13379         atomic64_set(&phba->cgn_acqe_stat.warn, 0);
13380         atomic_set(&phba->cgn_driver_evt_cnt, 0);
13381         atomic_set(&phba->cgn_latency_evt_cnt, 0);
13382         atomic64_set(&phba->cgn_latency_evt, 0);
13383         phba->cgn_evt_minute = 0;
13384         phba->hba_flag &= ~HBA_CGN_DAY_WRAP;
13385
13386         memset(cp, 0xff, LPFC_CGN_DATA_SIZE);
13387         cp->cgn_info_size = cpu_to_le16(LPFC_CGN_INFO_SZ);
13388         cp->cgn_info_version = LPFC_CGN_INFO_V3;
13389
13390         /* cgn parameters */
13391         cp->cgn_info_mode = phba->cgn_p.cgn_param_mode;
13392         cp->cgn_info_level0 = phba->cgn_p.cgn_param_level0;
13393         cp->cgn_info_level1 = phba->cgn_p.cgn_param_level1;
13394         cp->cgn_info_level2 = phba->cgn_p.cgn_param_level2;
13395
13396         ktime_get_real_ts64(&cmpl_time);
13397         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13398
13399         cp->cgn_info_month = broken.tm_mon + 1;
13400         cp->cgn_info_day = broken.tm_mday;
13401         cp->cgn_info_year = broken.tm_year - 100; /* relative to 2000 */
13402         cp->cgn_info_hour = broken.tm_hour;
13403         cp->cgn_info_minute = broken.tm_min;
13404         cp->cgn_info_second = broken.tm_sec;
13405
13406         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13407                         "2643 CGNInfo Init: Start Time "
13408                         "%d/%d/%d %d:%d:%d\n",
13409                         cp->cgn_info_day, cp->cgn_info_month,
13410                         cp->cgn_info_year, cp->cgn_info_hour,
13411                         cp->cgn_info_minute, cp->cgn_info_second);
13412
13413         /* Fill in default LUN qdepth */
13414         if (phba->pport) {
13415                 size = (uint16_t)(phba->pport->cfg_lun_queue_depth);
13416                 cp->cgn_lunq = cpu_to_le16(size);
13417         }
13418
13419         /* last used Index initialized to 0xff already */
13420
13421         cp->cgn_warn_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13422         cp->cgn_alarm_freq = cpu_to_le16(LPFC_FPIN_INIT_FREQ);
13423         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13424         cp->cgn_info_crc = cpu_to_le32(crc);
13425
13426         phba->cgn_evt_timestamp = jiffies +
13427                 msecs_to_jiffies(LPFC_CGN_TIMER_TO_MIN);
13428 }
13429
13430 void
13431 lpfc_init_congestion_stat(struct lpfc_hba *phba)
13432 {
13433         struct lpfc_cgn_info *cp;
13434         struct timespec64 cmpl_time;
13435         struct tm broken;
13436         uint32_t crc;
13437
13438         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT,
13439                         "6236 INIT Congestion Stat %p\n", phba->cgn_i);
13440
13441         if (!phba->cgn_i)
13442                 return;
13443
13444         cp = (struct lpfc_cgn_info *)phba->cgn_i->virt;
13445         memset(&cp->cgn_stat_npm, 0, LPFC_CGN_STAT_SIZE);
13446
13447         ktime_get_real_ts64(&cmpl_time);
13448         time64_to_tm(cmpl_time.tv_sec, 0, &broken);
13449
13450         cp->cgn_stat_month = broken.tm_mon + 1;
13451         cp->cgn_stat_day = broken.tm_mday;
13452         cp->cgn_stat_year = broken.tm_year - 100; /* relative to 2000 */
13453         cp->cgn_stat_hour = broken.tm_hour;
13454         cp->cgn_stat_minute = broken.tm_min;
13455
13456         lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT | LOG_INIT,
13457                         "2647 CGNstat Init: Start Time "
13458                         "%d/%d/%d %d:%d\n",
13459                         cp->cgn_stat_day, cp->cgn_stat_month,
13460                         cp->cgn_stat_year, cp->cgn_stat_hour,
13461                         cp->cgn_stat_minute);
13462
13463         crc = lpfc_cgn_calc_crc32(cp, LPFC_CGN_INFO_SZ, LPFC_CGN_CRC32_SEED);
13464         cp->cgn_info_crc = cpu_to_le32(crc);
13465 }
13466
13467 /**
13468  * __lpfc_reg_congestion_buf - register congestion info buffer with HBA
13469  * @phba: Pointer to hba context object.
13470  * @reg: flag to determine register or unregister.
13471  */
13472 static int
13473 __lpfc_reg_congestion_buf(struct lpfc_hba *phba, int reg)
13474 {
13475         struct lpfc_mbx_reg_congestion_buf *reg_congestion_buf;
13476         union  lpfc_sli4_cfg_shdr *shdr;
13477         uint32_t shdr_status, shdr_add_status;
13478         LPFC_MBOXQ_t *mboxq;
13479         int length, rc;
13480
13481         if (!phba->cgn_i)
13482                 return -ENXIO;
13483
13484         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13485         if (!mboxq) {
13486                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
13487                                 "2641 REG_CONGESTION_BUF mbox allocation fail: "
13488                                 "HBA state x%x reg %d\n",
13489                                 phba->pport->port_state, reg);
13490                 return -ENOMEM;
13491         }
13492
13493         length = (sizeof(struct lpfc_mbx_reg_congestion_buf) -
13494                 sizeof(struct lpfc_sli4_cfg_mhdr));
13495         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13496                          LPFC_MBOX_OPCODE_REG_CONGESTION_BUF, length,
13497                          LPFC_SLI4_MBX_EMBED);
13498         reg_congestion_buf = &mboxq->u.mqe.un.reg_congestion_buf;
13499         bf_set(lpfc_mbx_reg_cgn_buf_type, reg_congestion_buf, 1);
13500         if (reg > 0)
13501                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 1);
13502         else
13503                 bf_set(lpfc_mbx_reg_cgn_buf_cnt, reg_congestion_buf, 0);
13504         reg_congestion_buf->length = sizeof(struct lpfc_cgn_info);
13505         reg_congestion_buf->addr_lo =
13506                 putPaddrLow(phba->cgn_i->phys);
13507         reg_congestion_buf->addr_hi =
13508                 putPaddrHigh(phba->cgn_i->phys);
13509
13510         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13511         shdr = (union lpfc_sli4_cfg_shdr *)
13512                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
13513         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13514         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13515                                  &shdr->response);
13516         mempool_free(mboxq, phba->mbox_mem_pool);
13517         if (shdr_status || shdr_add_status || rc) {
13518                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13519                                 "2642 REG_CONGESTION_BUF mailbox "
13520                                 "failed with status x%x add_status x%x,"
13521                                 " mbx status x%x reg %d\n",
13522                                 shdr_status, shdr_add_status, rc, reg);
13523                 return -ENXIO;
13524         }
13525         return 0;
13526 }
13527
13528 int
13529 lpfc_unreg_congestion_buf(struct lpfc_hba *phba)
13530 {
13531         lpfc_cmf_stop(phba);
13532         return __lpfc_reg_congestion_buf(phba, 0);
13533 }
13534
13535 int
13536 lpfc_reg_congestion_buf(struct lpfc_hba *phba)
13537 {
13538         return __lpfc_reg_congestion_buf(phba, 1);
13539 }
13540
13541 /**
13542  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
13543  * @phba: Pointer to HBA context object.
13544  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
13545  *
13546  * This function is called in the SLI4 code path to read the port's
13547  * sli4 capabilities.
13548  *
13549  * This function may be be called from any context that can block-wait
13550  * for the completion.  The expectation is that this routine is called
13551  * typically from probe_one or from the online routine.
13552  **/
13553 int
13554 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
13555 {
13556         int rc;
13557         struct lpfc_mqe *mqe = &mboxq->u.mqe;
13558         struct lpfc_pc_sli4_params *sli4_params;
13559         uint32_t mbox_tmo;
13560         int length;
13561         bool exp_wqcq_pages = true;
13562         struct lpfc_sli4_parameters *mbx_sli4_parameters;
13563
13564         /*
13565          * By default, the driver assumes the SLI4 port requires RPI
13566          * header postings.  The SLI4_PARAM response will correct this
13567          * assumption.
13568          */
13569         phba->sli4_hba.rpi_hdrs_in_use = 1;
13570
13571         /* Read the port's SLI4 Config Parameters */
13572         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
13573                   sizeof(struct lpfc_sli4_cfg_mhdr));
13574         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
13575                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
13576                          length, LPFC_SLI4_MBX_EMBED);
13577         if (!phba->sli4_hba.intr_enable)
13578                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
13579         else {
13580                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
13581                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
13582         }
13583         if (unlikely(rc))
13584                 return rc;
13585         sli4_params = &phba->sli4_hba.pc_sli4_params;
13586         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
13587         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
13588         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
13589         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
13590         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
13591                                              mbx_sli4_parameters);
13592         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
13593                                              mbx_sli4_parameters);
13594         if (bf_get(cfg_phwq, mbx_sli4_parameters))
13595                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
13596         else
13597                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
13598         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
13599         sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope,
13600                                            mbx_sli4_parameters);
13601         sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
13602         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
13603         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
13604         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
13605         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
13606         sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters);
13607         sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters);
13608         sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters);
13609         sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters);
13610         sli4_params->pls = bf_get(cfg_pvl, mbx_sli4_parameters);
13611         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
13612                                             mbx_sli4_parameters);
13613         sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters);
13614         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
13615                                            mbx_sli4_parameters);
13616         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
13617         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
13618
13619         /* Check for Extended Pre-Registered SGL support */
13620         phba->cfg_xpsgl = bf_get(cfg_xpsgl, mbx_sli4_parameters);
13621
13622         /* Check for firmware nvme support */
13623         rc = (bf_get(cfg_nvme, mbx_sli4_parameters) &&
13624                      bf_get(cfg_xib, mbx_sli4_parameters));
13625
13626         if (rc) {
13627                 /* Save this to indicate the Firmware supports NVME */
13628                 sli4_params->nvme = 1;
13629
13630                 /* Firmware NVME support, check driver FC4 NVME support */
13631                 if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) {
13632                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13633                                         "6133 Disabling NVME support: "
13634                                         "FC4 type not supported: x%x\n",
13635                                         phba->cfg_enable_fc4_type);
13636                         goto fcponly;
13637                 }
13638         } else {
13639                 /* No firmware NVME support, check driver FC4 NVME support */
13640                 sli4_params->nvme = 0;
13641                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
13642                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME,
13643                                         "6101 Disabling NVME support: Not "
13644                                         "supported by firmware (%d %d) x%x\n",
13645                                         bf_get(cfg_nvme, mbx_sli4_parameters),
13646                                         bf_get(cfg_xib, mbx_sli4_parameters),
13647                                         phba->cfg_enable_fc4_type);
13648 fcponly:
13649                         phba->nvmet_support = 0;
13650                         phba->cfg_nvmet_mrq = 0;
13651                         phba->cfg_nvme_seg_cnt = 0;
13652
13653                         /* If no FC4 type support, move to just SCSI support */
13654                         if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP))
13655                                 return -ENODEV;
13656                         phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP;
13657                 }
13658         }
13659
13660         /* If the NVME FC4 type is enabled, scale the sg_seg_cnt to
13661          * accommodate 512K and 1M IOs in a single nvme buf.
13662          */
13663         if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)
13664                 phba->cfg_sg_seg_cnt = LPFC_MAX_NVME_SEG_CNT;
13665
13666         /* Enable embedded Payload BDE if support is indicated */
13667         if (bf_get(cfg_pbde, mbx_sli4_parameters))
13668                 phba->cfg_enable_pbde = 1;
13669         else
13670                 phba->cfg_enable_pbde = 0;
13671
13672         /*
13673          * To support Suppress Response feature we must satisfy 3 conditions.
13674          * lpfc_suppress_rsp module parameter must be set (default).
13675          * In SLI4-Parameters Descriptor:
13676          * Extended Inline Buffers (XIB) must be supported.
13677          * Suppress Response IU Not Supported (SRIUNS) must NOT be supported
13678          * (double negative).
13679          */
13680         if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) &&
13681             !(bf_get(cfg_nosr, mbx_sli4_parameters)))
13682                 phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP;
13683         else
13684                 phba->cfg_suppress_rsp = 0;
13685
13686         if (bf_get(cfg_eqdr, mbx_sli4_parameters))
13687                 phba->sli.sli_flag |= LPFC_SLI_USE_EQDR;
13688
13689         /* Make sure that sge_supp_len can be handled by the driver */
13690         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
13691                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
13692
13693         /*
13694          * Check whether the adapter supports an embedded copy of the
13695          * FCP CMD IU within the WQE for FCP_Ixxx commands. In order
13696          * to use this option, 128-byte WQEs must be used.
13697          */
13698         if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters))
13699                 phba->fcp_embed_io = 1;
13700         else
13701                 phba->fcp_embed_io = 0;
13702
13703         lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME,
13704                         "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n",
13705                         bf_get(cfg_xib, mbx_sli4_parameters),
13706                         phba->cfg_enable_pbde,
13707                         phba->fcp_embed_io, sli4_params->nvme,
13708                         phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp);
13709
13710         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
13711             LPFC_SLI_INTF_IF_TYPE_2) &&
13712             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
13713                  LPFC_SLI_INTF_FAMILY_LNCR_A0))
13714                 exp_wqcq_pages = false;
13715
13716         if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) &&
13717             (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) &&
13718             exp_wqcq_pages &&
13719             (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT))
13720                 phba->enab_exp_wqcq_pages = 1;
13721         else
13722                 phba->enab_exp_wqcq_pages = 0;
13723         /*
13724          * Check if the SLI port supports MDS Diagnostics
13725          */
13726         if (bf_get(cfg_mds_diags, mbx_sli4_parameters))
13727                 phba->mds_diags_support = 1;
13728         else
13729                 phba->mds_diags_support = 0;
13730
13731         /*
13732          * Check if the SLI port supports NSLER
13733          */
13734         if (bf_get(cfg_nsler, mbx_sli4_parameters))
13735                 phba->nsler = 1;
13736         else
13737                 phba->nsler = 0;
13738
13739         return 0;
13740 }
13741
13742 /**
13743  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
13744  * @pdev: pointer to PCI device
13745  * @pid: pointer to PCI device identifier
13746  *
13747  * This routine is to be called to attach a device with SLI-3 interface spec
13748  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13749  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
13750  * information of the device and driver to see if the driver state that it can
13751  * support this kind of device. If the match is successful, the driver core
13752  * invokes this routine. If this routine determines it can claim the HBA, it
13753  * does all the initialization that it needs to do to handle the HBA properly.
13754  *
13755  * Return code
13756  *      0 - driver can claim the device
13757  *      negative value - driver can not claim the device
13758  **/
13759 static int
13760 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
13761 {
13762         struct lpfc_hba   *phba;
13763         struct lpfc_vport *vport = NULL;
13764         struct Scsi_Host  *shost = NULL;
13765         int error;
13766         uint32_t cfg_mode, intr_mode;
13767
13768         /* Allocate memory for HBA structure */
13769         phba = lpfc_hba_alloc(pdev);
13770         if (!phba)
13771                 return -ENOMEM;
13772
13773         /* Perform generic PCI device enabling operation */
13774         error = lpfc_enable_pci_dev(phba);
13775         if (error)
13776                 goto out_free_phba;
13777
13778         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
13779         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
13780         if (error)
13781                 goto out_disable_pci_dev;
13782
13783         /* Set up SLI-3 specific device PCI memory space */
13784         error = lpfc_sli_pci_mem_setup(phba);
13785         if (error) {
13786                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13787                                 "1402 Failed to set up pci memory space.\n");
13788                 goto out_disable_pci_dev;
13789         }
13790
13791         /* Set up SLI-3 specific device driver resources */
13792         error = lpfc_sli_driver_resource_setup(phba);
13793         if (error) {
13794                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13795                                 "1404 Failed to set up driver resource.\n");
13796                 goto out_unset_pci_mem_s3;
13797         }
13798
13799         /* Initialize and populate the iocb list per host */
13800
13801         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
13802         if (error) {
13803                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13804                                 "1405 Failed to initialize iocb list.\n");
13805                 goto out_unset_driver_resource_s3;
13806         }
13807
13808         /* Set up common device driver resources */
13809         error = lpfc_setup_driver_resource_phase2(phba);
13810         if (error) {
13811                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13812                                 "1406 Failed to set up driver resource.\n");
13813                 goto out_free_iocb_list;
13814         }
13815
13816         /* Get the default values for Model Name and Description */
13817         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
13818
13819         /* Create SCSI host to the physical port */
13820         error = lpfc_create_shost(phba);
13821         if (error) {
13822                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13823                                 "1407 Failed to create scsi host.\n");
13824                 goto out_unset_driver_resource;
13825         }
13826
13827         /* Configure sysfs attributes */
13828         vport = phba->pport;
13829         error = lpfc_alloc_sysfs_attr(vport);
13830         if (error) {
13831                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13832                                 "1476 Failed to allocate sysfs attr\n");
13833                 goto out_destroy_shost;
13834         }
13835
13836         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
13837         /* Now, trying to enable interrupt and bring up the device */
13838         cfg_mode = phba->cfg_use_msi;
13839         while (true) {
13840                 /* Put device to a known state before enabling interrupt */
13841                 lpfc_stop_port(phba);
13842                 /* Configure and enable interrupt */
13843                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
13844                 if (intr_mode == LPFC_INTR_ERROR) {
13845                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13846                                         "0431 Failed to enable interrupt.\n");
13847                         error = -ENODEV;
13848                         goto out_free_sysfs_attr;
13849                 }
13850                 /* SLI-3 HBA setup */
13851                 if (lpfc_sli_hba_setup(phba)) {
13852                         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
13853                                         "1477 Failed to set up hba\n");
13854                         error = -ENODEV;
13855                         goto out_remove_device;
13856                 }
13857
13858                 /* Wait 50ms for the interrupts of previous mailbox commands */
13859                 msleep(50);
13860                 /* Check active interrupts on message signaled interrupts */
13861                 if (intr_mode == 0 ||
13862                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
13863                         /* Log the current active interrupt mode */
13864                         phba->intr_mode = intr_mode;
13865                         lpfc_log_intr_mode(phba, intr_mode);
13866                         break;
13867                 } else {
13868                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13869                                         "0447 Configure interrupt mode (%d) "
13870                                         "failed active interrupt test.\n",
13871                                         intr_mode);
13872                         /* Disable the current interrupt mode */
13873                         lpfc_sli_disable_intr(phba);
13874                         /* Try next level of interrupt mode */
13875                         cfg_mode = --intr_mode;
13876                 }
13877         }
13878
13879         /* Perform post initialization setup */
13880         lpfc_post_init_setup(phba);
13881
13882         /* Check if there are static vports to be created. */
13883         lpfc_create_static_vport(phba);
13884
13885         return 0;
13886
13887 out_remove_device:
13888         lpfc_unset_hba(phba);
13889 out_free_sysfs_attr:
13890         lpfc_free_sysfs_attr(vport);
13891 out_destroy_shost:
13892         lpfc_destroy_shost(phba);
13893 out_unset_driver_resource:
13894         lpfc_unset_driver_resource_phase2(phba);
13895 out_free_iocb_list:
13896         lpfc_free_iocb_list(phba);
13897 out_unset_driver_resource_s3:
13898         lpfc_sli_driver_resource_unset(phba);
13899 out_unset_pci_mem_s3:
13900         lpfc_sli_pci_mem_unset(phba);
13901 out_disable_pci_dev:
13902         lpfc_disable_pci_dev(phba);
13903         if (shost)
13904                 scsi_host_put(shost);
13905 out_free_phba:
13906         lpfc_hba_free(phba);
13907         return error;
13908 }
13909
13910 /**
13911  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
13912  * @pdev: pointer to PCI device
13913  *
13914  * This routine is to be called to disattach a device with SLI-3 interface
13915  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
13916  * removed from PCI bus, it performs all the necessary cleanup for the HBA
13917  * device to be removed from the PCI subsystem properly.
13918  **/
13919 static void
13920 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
13921 {
13922         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
13923         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
13924         struct lpfc_vport **vports;
13925         struct lpfc_hba   *phba = vport->phba;
13926         int i;
13927
13928         spin_lock_irq(&phba->hbalock);
13929         vport->load_flag |= FC_UNLOADING;
13930         spin_unlock_irq(&phba->hbalock);
13931
13932         lpfc_free_sysfs_attr(vport);
13933
13934         /* Release all the vports against this physical port */
13935         vports = lpfc_create_vport_work_array(phba);
13936         if (vports != NULL)
13937                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
13938                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
13939                                 continue;
13940                         fc_vport_terminate(vports[i]->fc_vport);
13941                 }
13942         lpfc_destroy_vport_work_array(phba, vports);
13943
13944         /* Remove FC host with the physical port */
13945         fc_remove_host(shost);
13946         scsi_remove_host(shost);
13947
13948         /* Clean up all nodes, mailboxes and IOs. */
13949         lpfc_cleanup(vport);
13950
13951         /*
13952          * Bring down the SLI Layer. This step disable all interrupts,
13953          * clears the rings, discards all mailbox commands, and resets
13954          * the HBA.
13955          */
13956
13957         /* HBA interrupt will be disabled after this call */
13958         lpfc_sli_hba_down(phba);
13959         /* Stop kthread signal shall trigger work_done one more time */
13960         kthread_stop(phba->worker_thread);
13961         /* Final cleanup of txcmplq and reset the HBA */
13962         lpfc_sli_brdrestart(phba);
13963
13964         kfree(phba->vpi_bmask);
13965         kfree(phba->vpi_ids);
13966
13967         lpfc_stop_hba_timers(phba);
13968         spin_lock_irq(&phba->port_list_lock);
13969         list_del_init(&vport->listentry);
13970         spin_unlock_irq(&phba->port_list_lock);
13971
13972         lpfc_debugfs_terminate(vport);
13973
13974         /* Disable SR-IOV if enabled */
13975         if (phba->cfg_sriov_nr_virtfn)
13976                 pci_disable_sriov(pdev);
13977
13978         /* Disable interrupt */
13979         lpfc_sli_disable_intr(phba);
13980
13981         scsi_host_put(shost);
13982
13983         /*
13984          * Call scsi_free before mem_free since scsi bufs are released to their
13985          * corresponding pools here.
13986          */
13987         lpfc_scsi_free(phba);
13988         lpfc_free_iocb_list(phba);
13989
13990         lpfc_mem_free_all(phba);
13991
13992         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
13993                           phba->hbqslimp.virt, phba->hbqslimp.phys);
13994
13995         /* Free resources associated with SLI2 interface */
13996         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
13997                           phba->slim2p.virt, phba->slim2p.phys);
13998
13999         /* unmap adapter SLIM and Control Registers */
14000         iounmap(phba->ctrl_regs_memmap_p);
14001         iounmap(phba->slim_memmap_p);
14002
14003         lpfc_hba_free(phba);
14004
14005         pci_release_mem_regions(pdev);
14006         pci_disable_device(pdev);
14007 }
14008
14009 /**
14010  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
14011  * @dev_d: pointer to device
14012  *
14013  * This routine is to be called from the kernel's PCI subsystem to support
14014  * system Power Management (PM) to device with SLI-3 interface spec. When
14015  * PM invokes this method, it quiesces the device by stopping the driver's
14016  * worker thread for the device, turning off device's interrupt and DMA,
14017  * and bring the device offline. Note that as the driver implements the
14018  * minimum PM requirements to a power-aware driver's PM support for the
14019  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14020  * to the suspend() method call will be treated as SUSPEND and the driver will
14021  * fully reinitialize its device during resume() method call, the driver will
14022  * set device to PCI_D3hot state in PCI config space instead of setting it
14023  * according to the @msg provided by the PM.
14024  *
14025  * Return code
14026  *      0 - driver suspended the device
14027  *      Error otherwise
14028  **/
14029 static int __maybe_unused
14030 lpfc_pci_suspend_one_s3(struct device *dev_d)
14031 {
14032         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14033         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14034
14035         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14036                         "0473 PCI device Power Management suspend.\n");
14037
14038         /* Bring down the device */
14039         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14040         lpfc_offline(phba);
14041         kthread_stop(phba->worker_thread);
14042
14043         /* Disable interrupt from device */
14044         lpfc_sli_disable_intr(phba);
14045
14046         return 0;
14047 }
14048
14049 /**
14050  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
14051  * @dev_d: pointer to device
14052  *
14053  * This routine is to be called from the kernel's PCI subsystem to support
14054  * system Power Management (PM) to device with SLI-3 interface spec. When PM
14055  * invokes this method, it restores the device's PCI config space state and
14056  * fully reinitializes the device and brings it online. Note that as the
14057  * driver implements the minimum PM requirements to a power-aware driver's
14058  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
14059  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
14060  * driver will fully reinitialize its device during resume() method call,
14061  * the device will be set to PCI_D0 directly in PCI config space before
14062  * restoring the state.
14063  *
14064  * Return code
14065  *      0 - driver suspended the device
14066  *      Error otherwise
14067  **/
14068 static int __maybe_unused
14069 lpfc_pci_resume_one_s3(struct device *dev_d)
14070 {
14071         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14072         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14073         uint32_t intr_mode;
14074         int error;
14075
14076         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14077                         "0452 PCI device Power Management resume.\n");
14078
14079         /* Startup the kernel thread for this host adapter. */
14080         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14081                                         "lpfc_worker_%d", phba->brd_no);
14082         if (IS_ERR(phba->worker_thread)) {
14083                 error = PTR_ERR(phba->worker_thread);
14084                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14085                                 "0434 PM resume failed to start worker "
14086                                 "thread: error=x%x.\n", error);
14087                 return error;
14088         }
14089
14090         /* Init cpu_map array */
14091         lpfc_cpu_map_array_init(phba);
14092         /* Init hba_eq_hdl array */
14093         lpfc_hba_eq_hdl_array_init(phba);
14094         /* Configure and enable interrupt */
14095         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14096         if (intr_mode == LPFC_INTR_ERROR) {
14097                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14098                                 "0430 PM resume Failed to enable interrupt\n");
14099                 return -EIO;
14100         } else
14101                 phba->intr_mode = intr_mode;
14102
14103         /* Restart HBA and bring it online */
14104         lpfc_sli_brdrestart(phba);
14105         lpfc_online(phba);
14106
14107         /* Log the current active interrupt mode */
14108         lpfc_log_intr_mode(phba, phba->intr_mode);
14109
14110         return 0;
14111 }
14112
14113 /**
14114  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
14115  * @phba: pointer to lpfc hba data structure.
14116  *
14117  * This routine is called to prepare the SLI3 device for PCI slot recover. It
14118  * aborts all the outstanding SCSI I/Os to the pci device.
14119  **/
14120 static void
14121 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
14122 {
14123         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14124                         "2723 PCI channel I/O abort preparing for recovery\n");
14125
14126         /*
14127          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14128          * and let the SCSI mid-layer to retry them to recover.
14129          */
14130         lpfc_sli_abort_fcp_rings(phba);
14131 }
14132
14133 /**
14134  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
14135  * @phba: pointer to lpfc hba data structure.
14136  *
14137  * This routine is called to prepare the SLI3 device for PCI slot reset. It
14138  * disables the device interrupt and pci device, and aborts the internal FCP
14139  * pending I/Os.
14140  **/
14141 static void
14142 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
14143 {
14144         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14145                         "2710 PCI channel disable preparing for reset\n");
14146
14147         /* Block any management I/Os to the device */
14148         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
14149
14150         /* Block all SCSI devices' I/Os on the host */
14151         lpfc_scsi_dev_block(phba);
14152
14153         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
14154         lpfc_sli_flush_io_rings(phba);
14155
14156         /* stop all timers */
14157         lpfc_stop_hba_timers(phba);
14158
14159         /* Disable interrupt and pci device */
14160         lpfc_sli_disable_intr(phba);
14161         pci_disable_device(phba->pcidev);
14162 }
14163
14164 /**
14165  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
14166  * @phba: pointer to lpfc hba data structure.
14167  *
14168  * This routine is called to prepare the SLI3 device for PCI slot permanently
14169  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
14170  * pending I/Os.
14171  **/
14172 static void
14173 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
14174 {
14175         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14176                         "2711 PCI channel permanent disable for failure\n");
14177         /* Block all SCSI devices' I/Os on the host */
14178         lpfc_scsi_dev_block(phba);
14179
14180         /* stop all timers */
14181         lpfc_stop_hba_timers(phba);
14182
14183         /* Clean up all driver's outstanding SCSI I/Os */
14184         lpfc_sli_flush_io_rings(phba);
14185 }
14186
14187 /**
14188  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
14189  * @pdev: pointer to PCI device.
14190  * @state: the current PCI connection state.
14191  *
14192  * This routine is called from the PCI subsystem for I/O error handling to
14193  * device with SLI-3 interface spec. This function is called by the PCI
14194  * subsystem after a PCI bus error affecting this device has been detected.
14195  * When this function is invoked, it will need to stop all the I/Os and
14196  * interrupt(s) to the device. Once that is done, it will return
14197  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
14198  * as desired.
14199  *
14200  * Return codes
14201  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
14202  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
14203  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14204  **/
14205 static pci_ers_result_t
14206 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
14207 {
14208         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14209         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14210
14211         switch (state) {
14212         case pci_channel_io_normal:
14213                 /* Non-fatal error, prepare for recovery */
14214                 lpfc_sli_prep_dev_for_recover(phba);
14215                 return PCI_ERS_RESULT_CAN_RECOVER;
14216         case pci_channel_io_frozen:
14217                 /* Fatal error, prepare for slot reset */
14218                 lpfc_sli_prep_dev_for_reset(phba);
14219                 return PCI_ERS_RESULT_NEED_RESET;
14220         case pci_channel_io_perm_failure:
14221                 /* Permanent failure, prepare for device down */
14222                 lpfc_sli_prep_dev_for_perm_failure(phba);
14223                 return PCI_ERS_RESULT_DISCONNECT;
14224         default:
14225                 /* Unknown state, prepare and request slot reset */
14226                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14227                                 "0472 Unknown PCI error state: x%x\n", state);
14228                 lpfc_sli_prep_dev_for_reset(phba);
14229                 return PCI_ERS_RESULT_NEED_RESET;
14230         }
14231 }
14232
14233 /**
14234  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
14235  * @pdev: pointer to PCI device.
14236  *
14237  * This routine is called from the PCI subsystem for error handling to
14238  * device with SLI-3 interface spec. This is called after PCI bus has been
14239  * reset to restart the PCI card from scratch, as if from a cold-boot.
14240  * During the PCI subsystem error recovery, after driver returns
14241  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
14242  * recovery and then call this routine before calling the .resume method
14243  * to recover the device. This function will initialize the HBA device,
14244  * enable the interrupt, but it will just put the HBA to offline state
14245  * without passing any I/O traffic.
14246  *
14247  * Return codes
14248  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
14249  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
14250  */
14251 static pci_ers_result_t
14252 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
14253 {
14254         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14255         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14256         struct lpfc_sli *psli = &phba->sli;
14257         uint32_t intr_mode;
14258
14259         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
14260         if (pci_enable_device_mem(pdev)) {
14261                 printk(KERN_ERR "lpfc: Cannot re-enable "
14262                         "PCI device after reset.\n");
14263                 return PCI_ERS_RESULT_DISCONNECT;
14264         }
14265
14266         pci_restore_state(pdev);
14267
14268         /*
14269          * As the new kernel behavior of pci_restore_state() API call clears
14270          * device saved_state flag, need to save the restored state again.
14271          */
14272         pci_save_state(pdev);
14273
14274         if (pdev->is_busmaster)
14275                 pci_set_master(pdev);
14276
14277         spin_lock_irq(&phba->hbalock);
14278         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
14279         spin_unlock_irq(&phba->hbalock);
14280
14281         /* Configure and enable interrupt */
14282         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
14283         if (intr_mode == LPFC_INTR_ERROR) {
14284                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14285                                 "0427 Cannot re-enable interrupt after "
14286                                 "slot reset.\n");
14287                 return PCI_ERS_RESULT_DISCONNECT;
14288         } else
14289                 phba->intr_mode = intr_mode;
14290
14291         /* Take device offline, it will perform cleanup */
14292         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14293         lpfc_offline(phba);
14294         lpfc_sli_brdrestart(phba);
14295
14296         /* Log the current active interrupt mode */
14297         lpfc_log_intr_mode(phba, phba->intr_mode);
14298
14299         return PCI_ERS_RESULT_RECOVERED;
14300 }
14301
14302 /**
14303  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
14304  * @pdev: pointer to PCI device
14305  *
14306  * This routine is called from the PCI subsystem for error handling to device
14307  * with SLI-3 interface spec. It is called when kernel error recovery tells
14308  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
14309  * error recovery. After this call, traffic can start to flow from this device
14310  * again.
14311  */
14312 static void
14313 lpfc_io_resume_s3(struct pci_dev *pdev)
14314 {
14315         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14316         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14317
14318         /* Bring device online, it will be no-op for non-fatal error resume */
14319         lpfc_online(phba);
14320 }
14321
14322 /**
14323  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
14324  * @phba: pointer to lpfc hba data structure.
14325  *
14326  * returns the number of ELS/CT IOCBs to reserve
14327  **/
14328 int
14329 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
14330 {
14331         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
14332
14333         if (phba->sli_rev == LPFC_SLI_REV4) {
14334                 if (max_xri <= 100)
14335                         return 10;
14336                 else if (max_xri <= 256)
14337                         return 25;
14338                 else if (max_xri <= 512)
14339                         return 50;
14340                 else if (max_xri <= 1024)
14341                         return 100;
14342                 else if (max_xri <= 1536)
14343                         return 150;
14344                 else if (max_xri <= 2048)
14345                         return 200;
14346                 else
14347                         return 250;
14348         } else
14349                 return 0;
14350 }
14351
14352 /**
14353  * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve
14354  * @phba: pointer to lpfc hba data structure.
14355  *
14356  * returns the number of ELS/CT + NVMET IOCBs to reserve
14357  **/
14358 int
14359 lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba)
14360 {
14361         int max_xri = lpfc_sli4_get_els_iocb_cnt(phba);
14362
14363         if (phba->nvmet_support)
14364                 max_xri += LPFC_NVMET_BUF_POST;
14365         return max_xri;
14366 }
14367
14368
14369 static int
14370 lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset,
14371         uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize,
14372         const struct firmware *fw)
14373 {
14374         int rc;
14375         u8 sli_family;
14376
14377         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
14378         /* Three cases:  (1) FW was not supported on the detected adapter.
14379          * (2) FW update has been locked out administratively.
14380          * (3) Some other error during FW update.
14381          * In each case, an unmaskable message is written to the console
14382          * for admin diagnosis.
14383          */
14384         if (offset == ADD_STATUS_FW_NOT_SUPPORTED ||
14385             (sli_family == LPFC_SLI_INTF_FAMILY_G6 &&
14386              magic_number != MAGIC_NUMBER_G6) ||
14387             (sli_family == LPFC_SLI_INTF_FAMILY_G7 &&
14388              magic_number != MAGIC_NUMBER_G7) ||
14389             (sli_family == LPFC_SLI_INTF_FAMILY_G7P &&
14390              magic_number != MAGIC_NUMBER_G7P)) {
14391                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14392                                 "3030 This firmware version is not supported on"
14393                                 " this HBA model. Device:%x Magic:%x Type:%x "
14394                                 "ID:%x Size %d %zd\n",
14395                                 phba->pcidev->device, magic_number, ftype, fid,
14396                                 fsize, fw->size);
14397                 rc = -EINVAL;
14398         } else if (offset == ADD_STATUS_FW_DOWNLOAD_HW_DISABLED) {
14399                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14400                                 "3021 Firmware downloads have been prohibited "
14401                                 "by a system configuration setting on "
14402                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14403                                 "%zd\n",
14404                                 phba->pcidev->device, magic_number, ftype, fid,
14405                                 fsize, fw->size);
14406                 rc = -EACCES;
14407         } else {
14408                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14409                                 "3022 FW Download failed. Add Status x%x "
14410                                 "Device:%x Magic:%x Type:%x ID:%x Size %d "
14411                                 "%zd\n",
14412                                 offset, phba->pcidev->device, magic_number,
14413                                 ftype, fid, fsize, fw->size);
14414                 rc = -EIO;
14415         }
14416         return rc;
14417 }
14418
14419 /**
14420  * lpfc_write_firmware - attempt to write a firmware image to the port
14421  * @fw: pointer to firmware image returned from request_firmware.
14422  * @context: pointer to firmware image returned from request_firmware.
14423  *
14424  **/
14425 static void
14426 lpfc_write_firmware(const struct firmware *fw, void *context)
14427 {
14428         struct lpfc_hba *phba = (struct lpfc_hba *)context;
14429         char fwrev[FW_REV_STR_SIZE];
14430         struct lpfc_grp_hdr *image;
14431         struct list_head dma_buffer_list;
14432         int i, rc = 0;
14433         struct lpfc_dmabuf *dmabuf, *next;
14434         uint32_t offset = 0, temp_offset = 0;
14435         uint32_t magic_number, ftype, fid, fsize;
14436
14437         /* It can be null in no-wait mode, sanity check */
14438         if (!fw) {
14439                 rc = -ENXIO;
14440                 goto out;
14441         }
14442         image = (struct lpfc_grp_hdr *)fw->data;
14443
14444         magic_number = be32_to_cpu(image->magic_number);
14445         ftype = bf_get_be32(lpfc_grp_hdr_file_type, image);
14446         fid = bf_get_be32(lpfc_grp_hdr_id, image);
14447         fsize = be32_to_cpu(image->size);
14448
14449         INIT_LIST_HEAD(&dma_buffer_list);
14450         lpfc_decode_firmware_rev(phba, fwrev, 1);
14451         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
14452                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14453                                 "3023 Updating Firmware, Current Version:%s "
14454                                 "New Version:%s\n",
14455                                 fwrev, image->revision);
14456                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
14457                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
14458                                          GFP_KERNEL);
14459                         if (!dmabuf) {
14460                                 rc = -ENOMEM;
14461                                 goto release_out;
14462                         }
14463                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
14464                                                           SLI4_PAGE_SIZE,
14465                                                           &dmabuf->phys,
14466                                                           GFP_KERNEL);
14467                         if (!dmabuf->virt) {
14468                                 kfree(dmabuf);
14469                                 rc = -ENOMEM;
14470                                 goto release_out;
14471                         }
14472                         list_add_tail(&dmabuf->list, &dma_buffer_list);
14473                 }
14474                 while (offset < fw->size) {
14475                         temp_offset = offset;
14476                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
14477                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
14478                                         memcpy(dmabuf->virt,
14479                                                fw->data + temp_offset,
14480                                                fw->size - temp_offset);
14481                                         temp_offset = fw->size;
14482                                         break;
14483                                 }
14484                                 memcpy(dmabuf->virt, fw->data + temp_offset,
14485                                        SLI4_PAGE_SIZE);
14486                                 temp_offset += SLI4_PAGE_SIZE;
14487                         }
14488                         rc = lpfc_wr_object(phba, &dma_buffer_list,
14489                                     (fw->size - offset), &offset);
14490                         if (rc) {
14491                                 rc = lpfc_log_write_firmware_error(phba, offset,
14492                                                                    magic_number,
14493                                                                    ftype,
14494                                                                    fid,
14495                                                                    fsize,
14496                                                                    fw);
14497                                 goto release_out;
14498                         }
14499                 }
14500                 rc = offset;
14501         } else
14502                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14503                                 "3029 Skipped Firmware update, Current "
14504                                 "Version:%s New Version:%s\n",
14505                                 fwrev, image->revision);
14506
14507 release_out:
14508         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
14509                 list_del(&dmabuf->list);
14510                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
14511                                   dmabuf->virt, dmabuf->phys);
14512                 kfree(dmabuf);
14513         }
14514         release_firmware(fw);
14515 out:
14516         if (rc < 0)
14517                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14518                                 "3062 Firmware update error, status %d.\n", rc);
14519         else
14520                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14521                                 "3024 Firmware update success: size %d.\n", rc);
14522 }
14523
14524 /**
14525  * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade
14526  * @phba: pointer to lpfc hba data structure.
14527  * @fw_upgrade: which firmware to update.
14528  *
14529  * This routine is called to perform Linux generic firmware upgrade on device
14530  * that supports such feature.
14531  **/
14532 int
14533 lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade)
14534 {
14535         uint8_t file_name[ELX_MODEL_NAME_SIZE];
14536         int ret;
14537         const struct firmware *fw;
14538
14539         /* Only supported on SLI4 interface type 2 for now */
14540         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) <
14541             LPFC_SLI_INTF_IF_TYPE_2)
14542                 return -EPERM;
14543
14544         snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName);
14545
14546         if (fw_upgrade == INT_FW_UPGRADE) {
14547                 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
14548                                         file_name, &phba->pcidev->dev,
14549                                         GFP_KERNEL, (void *)phba,
14550                                         lpfc_write_firmware);
14551         } else if (fw_upgrade == RUN_FW_UPGRADE) {
14552                 ret = request_firmware(&fw, file_name, &phba->pcidev->dev);
14553                 if (!ret)
14554                         lpfc_write_firmware(fw, (void *)phba);
14555         } else {
14556                 ret = -EINVAL;
14557         }
14558
14559         return ret;
14560 }
14561
14562 /**
14563  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
14564  * @pdev: pointer to PCI device
14565  * @pid: pointer to PCI device identifier
14566  *
14567  * This routine is called from the kernel's PCI subsystem to device with
14568  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14569  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
14570  * information of the device and driver to see if the driver state that it
14571  * can support this kind of device. If the match is successful, the driver
14572  * core invokes this routine. If this routine determines it can claim the HBA,
14573  * it does all the initialization that it needs to do to handle the HBA
14574  * properly.
14575  *
14576  * Return code
14577  *      0 - driver can claim the device
14578  *      negative value - driver can not claim the device
14579  **/
14580 static int
14581 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
14582 {
14583         struct lpfc_hba   *phba;
14584         struct lpfc_vport *vport = NULL;
14585         struct Scsi_Host  *shost = NULL;
14586         int error;
14587         uint32_t cfg_mode, intr_mode;
14588
14589         /* Allocate memory for HBA structure */
14590         phba = lpfc_hba_alloc(pdev);
14591         if (!phba)
14592                 return -ENOMEM;
14593
14594         INIT_LIST_HEAD(&phba->poll_list);
14595
14596         /* Perform generic PCI device enabling operation */
14597         error = lpfc_enable_pci_dev(phba);
14598         if (error)
14599                 goto out_free_phba;
14600
14601         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
14602         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
14603         if (error)
14604                 goto out_disable_pci_dev;
14605
14606         /* Set up SLI-4 specific device PCI memory space */
14607         error = lpfc_sli4_pci_mem_setup(phba);
14608         if (error) {
14609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14610                                 "1410 Failed to set up pci memory space.\n");
14611                 goto out_disable_pci_dev;
14612         }
14613
14614         /* Set up SLI-4 Specific device driver resources */
14615         error = lpfc_sli4_driver_resource_setup(phba);
14616         if (error) {
14617                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14618                                 "1412 Failed to set up driver resource.\n");
14619                 goto out_unset_pci_mem_s4;
14620         }
14621
14622         INIT_LIST_HEAD(&phba->active_rrq_list);
14623         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
14624
14625         /* Set up common device driver resources */
14626         error = lpfc_setup_driver_resource_phase2(phba);
14627         if (error) {
14628                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14629                                 "1414 Failed to set up driver resource.\n");
14630                 goto out_unset_driver_resource_s4;
14631         }
14632
14633         /* Get the default values for Model Name and Description */
14634         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
14635
14636         /* Now, trying to enable interrupt and bring up the device */
14637         cfg_mode = phba->cfg_use_msi;
14638
14639         /* Put device to a known state before enabling interrupt */
14640         phba->pport = NULL;
14641         lpfc_stop_port(phba);
14642
14643         /* Init cpu_map array */
14644         lpfc_cpu_map_array_init(phba);
14645
14646         /* Init hba_eq_hdl array */
14647         lpfc_hba_eq_hdl_array_init(phba);
14648
14649         /* Configure and enable interrupt */
14650         intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
14651         if (intr_mode == LPFC_INTR_ERROR) {
14652                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14653                                 "0426 Failed to enable interrupt.\n");
14654                 error = -ENODEV;
14655                 goto out_unset_driver_resource;
14656         }
14657         /* Default to single EQ for non-MSI-X */
14658         if (phba->intr_type != MSIX) {
14659                 phba->cfg_irq_chann = 1;
14660                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14661                         if (phba->nvmet_support)
14662                                 phba->cfg_nvmet_mrq = 1;
14663                 }
14664         }
14665         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
14666
14667         /* Create SCSI host to the physical port */
14668         error = lpfc_create_shost(phba);
14669         if (error) {
14670                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14671                                 "1415 Failed to create scsi host.\n");
14672                 goto out_disable_intr;
14673         }
14674         vport = phba->pport;
14675         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
14676
14677         /* Configure sysfs attributes */
14678         error = lpfc_alloc_sysfs_attr(vport);
14679         if (error) {
14680                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14681                                 "1416 Failed to allocate sysfs attr\n");
14682                 goto out_destroy_shost;
14683         }
14684
14685         /* Set up SLI-4 HBA */
14686         if (lpfc_sli4_hba_setup(phba)) {
14687                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14688                                 "1421 Failed to set up hba\n");
14689                 error = -ENODEV;
14690                 goto out_free_sysfs_attr;
14691         }
14692
14693         /* Log the current active interrupt mode */
14694         phba->intr_mode = intr_mode;
14695         lpfc_log_intr_mode(phba, intr_mode);
14696
14697         /* Perform post initialization setup */
14698         lpfc_post_init_setup(phba);
14699
14700         /* NVME support in FW earlier in the driver load corrects the
14701          * FC4 type making a check for nvme_support unnecessary.
14702          */
14703         if (phba->nvmet_support == 0) {
14704                 if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) {
14705                         /* Create NVME binding with nvme_fc_transport. This
14706                          * ensures the vport is initialized.  If the localport
14707                          * create fails, it should not unload the driver to
14708                          * support field issues.
14709                          */
14710                         error = lpfc_nvme_create_localport(vport);
14711                         if (error) {
14712                                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14713                                                 "6004 NVME registration "
14714                                                 "failed, error x%x\n",
14715                                                 error);
14716                         }
14717                 }
14718         }
14719
14720         /* check for firmware upgrade or downgrade */
14721         if (phba->cfg_request_firmware_upgrade)
14722                 lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE);
14723
14724         /* Check if there are static vports to be created. */
14725         lpfc_create_static_vport(phba);
14726
14727         /* Enable RAS FW log support */
14728         lpfc_sli4_ras_setup(phba);
14729
14730         timer_setup(&phba->cpuhp_poll_timer, lpfc_sli4_poll_hbtimer, 0);
14731         cpuhp_state_add_instance_nocalls(lpfc_cpuhp_state, &phba->cpuhp);
14732
14733         return 0;
14734
14735 out_free_sysfs_attr:
14736         lpfc_free_sysfs_attr(vport);
14737 out_destroy_shost:
14738         lpfc_destroy_shost(phba);
14739 out_disable_intr:
14740         lpfc_sli4_disable_intr(phba);
14741 out_unset_driver_resource:
14742         lpfc_unset_driver_resource_phase2(phba);
14743 out_unset_driver_resource_s4:
14744         lpfc_sli4_driver_resource_unset(phba);
14745 out_unset_pci_mem_s4:
14746         lpfc_sli4_pci_mem_unset(phba);
14747 out_disable_pci_dev:
14748         lpfc_disable_pci_dev(phba);
14749         if (shost)
14750                 scsi_host_put(shost);
14751 out_free_phba:
14752         lpfc_hba_free(phba);
14753         return error;
14754 }
14755
14756 /**
14757  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
14758  * @pdev: pointer to PCI device
14759  *
14760  * This routine is called from the kernel's PCI subsystem to device with
14761  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
14762  * removed from PCI bus, it performs all the necessary cleanup for the HBA
14763  * device to be removed from the PCI subsystem properly.
14764  **/
14765 static void
14766 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
14767 {
14768         struct Scsi_Host *shost = pci_get_drvdata(pdev);
14769         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
14770         struct lpfc_vport **vports;
14771         struct lpfc_hba *phba = vport->phba;
14772         int i;
14773
14774         /* Mark the device unloading flag */
14775         spin_lock_irq(&phba->hbalock);
14776         vport->load_flag |= FC_UNLOADING;
14777         spin_unlock_irq(&phba->hbalock);
14778         if (phba->cgn_i)
14779                 lpfc_unreg_congestion_buf(phba);
14780
14781         lpfc_free_sysfs_attr(vport);
14782
14783         /* Release all the vports against this physical port */
14784         vports = lpfc_create_vport_work_array(phba);
14785         if (vports != NULL)
14786                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
14787                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
14788                                 continue;
14789                         fc_vport_terminate(vports[i]->fc_vport);
14790                 }
14791         lpfc_destroy_vport_work_array(phba, vports);
14792
14793         /* Remove FC host with the physical port */
14794         fc_remove_host(shost);
14795         scsi_remove_host(shost);
14796
14797         /* Perform ndlp cleanup on the physical port.  The nvme and nvmet
14798          * localports are destroyed after to cleanup all transport memory.
14799          */
14800         lpfc_cleanup(vport);
14801         lpfc_nvmet_destroy_targetport(phba);
14802         lpfc_nvme_destroy_localport(vport);
14803
14804         /* De-allocate multi-XRI pools */
14805         if (phba->cfg_xri_rebalancing)
14806                 lpfc_destroy_multixri_pools(phba);
14807
14808         /*
14809          * Bring down the SLI Layer. This step disables all interrupts,
14810          * clears the rings, discards all mailbox commands, and resets
14811          * the HBA FCoE function.
14812          */
14813         lpfc_debugfs_terminate(vport);
14814
14815         lpfc_stop_hba_timers(phba);
14816         spin_lock_irq(&phba->port_list_lock);
14817         list_del_init(&vport->listentry);
14818         spin_unlock_irq(&phba->port_list_lock);
14819
14820         /* Perform scsi free before driver resource_unset since scsi
14821          * buffers are released to their corresponding pools here.
14822          */
14823         lpfc_io_free(phba);
14824         lpfc_free_iocb_list(phba);
14825         lpfc_sli4_hba_unset(phba);
14826
14827         lpfc_unset_driver_resource_phase2(phba);
14828         lpfc_sli4_driver_resource_unset(phba);
14829
14830         /* Unmap adapter Control and Doorbell registers */
14831         lpfc_sli4_pci_mem_unset(phba);
14832
14833         /* Release PCI resources and disable device's PCI function */
14834         scsi_host_put(shost);
14835         lpfc_disable_pci_dev(phba);
14836
14837         /* Finally, free the driver's device data structure */
14838         lpfc_hba_free(phba);
14839
14840         return;
14841 }
14842
14843 /**
14844  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
14845  * @dev_d: pointer to device
14846  *
14847  * This routine is called from the kernel's PCI subsystem to support system
14848  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
14849  * this method, it quiesces the device by stopping the driver's worker
14850  * thread for the device, turning off device's interrupt and DMA, and bring
14851  * the device offline. Note that as the driver implements the minimum PM
14852  * requirements to a power-aware driver's PM support for suspend/resume -- all
14853  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
14854  * method call will be treated as SUSPEND and the driver will fully
14855  * reinitialize its device during resume() method call, the driver will set
14856  * device to PCI_D3hot state in PCI config space instead of setting it
14857  * according to the @msg provided by the PM.
14858  *
14859  * Return code
14860  *      0 - driver suspended the device
14861  *      Error otherwise
14862  **/
14863 static int __maybe_unused
14864 lpfc_pci_suspend_one_s4(struct device *dev_d)
14865 {
14866         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14867         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14868
14869         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14870                         "2843 PCI device Power Management suspend.\n");
14871
14872         /* Bring down the device */
14873         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
14874         lpfc_offline(phba);
14875         kthread_stop(phba->worker_thread);
14876
14877         /* Disable interrupt from device */
14878         lpfc_sli4_disable_intr(phba);
14879         lpfc_sli4_queue_destroy(phba);
14880
14881         return 0;
14882 }
14883
14884 /**
14885  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
14886  * @dev_d: pointer to device
14887  *
14888  * This routine is called from the kernel's PCI subsystem to support system
14889  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
14890  * this method, it restores the device's PCI config space state and fully
14891  * reinitializes the device and brings it online. Note that as the driver
14892  * implements the minimum PM requirements to a power-aware driver's PM for
14893  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
14894  * to the suspend() method call will be treated as SUSPEND and the driver
14895  * will fully reinitialize its device during resume() method call, the device
14896  * will be set to PCI_D0 directly in PCI config space before restoring the
14897  * state.
14898  *
14899  * Return code
14900  *      0 - driver suspended the device
14901  *      Error otherwise
14902  **/
14903 static int __maybe_unused
14904 lpfc_pci_resume_one_s4(struct device *dev_d)
14905 {
14906         struct Scsi_Host *shost = dev_get_drvdata(dev_d);
14907         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
14908         uint32_t intr_mode;
14909         int error;
14910
14911         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
14912                         "0292 PCI device Power Management resume.\n");
14913
14914          /* Startup the kernel thread for this host adapter. */
14915         phba->worker_thread = kthread_run(lpfc_do_work, phba,
14916                                         "lpfc_worker_%d", phba->brd_no);
14917         if (IS_ERR(phba->worker_thread)) {
14918                 error = PTR_ERR(phba->worker_thread);
14919                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14920                                 "0293 PM resume failed to start worker "
14921                                 "thread: error=x%x.\n", error);
14922                 return error;
14923         }
14924
14925         /* Configure and enable interrupt */
14926         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
14927         if (intr_mode == LPFC_INTR_ERROR) {
14928                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14929                                 "0294 PM resume Failed to enable interrupt\n");
14930                 return -EIO;
14931         } else
14932                 phba->intr_mode = intr_mode;
14933
14934         /* Restart HBA and bring it online */
14935         lpfc_sli_brdrestart(phba);
14936         lpfc_online(phba);
14937
14938         /* Log the current active interrupt mode */
14939         lpfc_log_intr_mode(phba, phba->intr_mode);
14940
14941         return 0;
14942 }
14943
14944 /**
14945  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
14946  * @phba: pointer to lpfc hba data structure.
14947  *
14948  * This routine is called to prepare the SLI4 device for PCI slot recover. It
14949  * aborts all the outstanding SCSI I/Os to the pci device.
14950  **/
14951 static void
14952 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
14953 {
14954         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14955                         "2828 PCI channel I/O abort preparing for recovery\n");
14956         /*
14957          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
14958          * and let the SCSI mid-layer to retry them to recover.
14959          */
14960         lpfc_sli_abort_fcp_rings(phba);
14961 }
14962
14963 /**
14964  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
14965  * @phba: pointer to lpfc hba data structure.
14966  *
14967  * This routine is called to prepare the SLI4 device for PCI slot reset. It
14968  * disables the device interrupt and pci device, and aborts the internal FCP
14969  * pending I/Os.
14970  **/
14971 static void
14972 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
14973 {
14974         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
14975                         "2826 PCI channel disable preparing for reset\n");
14976
14977         /* Block any management I/Os to the device */
14978         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
14979
14980         /* Block all SCSI devices' I/Os on the host */
14981         lpfc_scsi_dev_block(phba);
14982
14983         /* Flush all driver's outstanding I/Os as we are to reset */
14984         lpfc_sli_flush_io_rings(phba);
14985
14986         /* stop all timers */
14987         lpfc_stop_hba_timers(phba);
14988
14989         /* Disable interrupt and pci device */
14990         lpfc_sli4_disable_intr(phba);
14991         lpfc_sli4_queue_destroy(phba);
14992         pci_disable_device(phba->pcidev);
14993 }
14994
14995 /**
14996  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
14997  * @phba: pointer to lpfc hba data structure.
14998  *
14999  * This routine is called to prepare the SLI4 device for PCI slot permanently
15000  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
15001  * pending I/Os.
15002  **/
15003 static void
15004 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
15005 {
15006         lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15007                         "2827 PCI channel permanent disable for failure\n");
15008
15009         /* Block all SCSI devices' I/Os on the host */
15010         lpfc_scsi_dev_block(phba);
15011
15012         /* stop all timers */
15013         lpfc_stop_hba_timers(phba);
15014
15015         /* Clean up all driver's outstanding I/Os */
15016         lpfc_sli_flush_io_rings(phba);
15017 }
15018
15019 /**
15020  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
15021  * @pdev: pointer to PCI device.
15022  * @state: the current PCI connection state.
15023  *
15024  * This routine is called from the PCI subsystem for error handling to device
15025  * with SLI-4 interface spec. This function is called by the PCI subsystem
15026  * after a PCI bus error affecting this device has been detected. When this
15027  * function is invoked, it will need to stop all the I/Os and interrupt(s)
15028  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
15029  * for the PCI subsystem to perform proper recovery as desired.
15030  *
15031  * Return codes
15032  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15033  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15034  **/
15035 static pci_ers_result_t
15036 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
15037 {
15038         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15039         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15040
15041         switch (state) {
15042         case pci_channel_io_normal:
15043                 /* Non-fatal error, prepare for recovery */
15044                 lpfc_sli4_prep_dev_for_recover(phba);
15045                 return PCI_ERS_RESULT_CAN_RECOVER;
15046         case pci_channel_io_frozen:
15047                 phba->hba_flag |= HBA_PCI_ERR;
15048                 /* Fatal error, prepare for slot reset */
15049                 lpfc_sli4_prep_dev_for_reset(phba);
15050                 return PCI_ERS_RESULT_NEED_RESET;
15051         case pci_channel_io_perm_failure:
15052                 phba->hba_flag |= HBA_PCI_ERR;
15053                 /* Permanent failure, prepare for device down */
15054                 lpfc_sli4_prep_dev_for_perm_failure(phba);
15055                 return PCI_ERS_RESULT_DISCONNECT;
15056         default:
15057                 phba->hba_flag |= HBA_PCI_ERR;
15058                 /* Unknown state, prepare and request slot reset */
15059                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15060                                 "2825 Unknown PCI error state: x%x\n", state);
15061                 lpfc_sli4_prep_dev_for_reset(phba);
15062                 return PCI_ERS_RESULT_NEED_RESET;
15063         }
15064 }
15065
15066 /**
15067  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
15068  * @pdev: pointer to PCI device.
15069  *
15070  * This routine is called from the PCI subsystem for error handling to device
15071  * with SLI-4 interface spec. It is called after PCI bus has been reset to
15072  * restart the PCI card from scratch, as if from a cold-boot. During the
15073  * PCI subsystem error recovery, after the driver returns
15074  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
15075  * recovery and then call this routine before calling the .resume method to
15076  * recover the device. This function will initialize the HBA device, enable
15077  * the interrupt, but it will just put the HBA to offline state without
15078  * passing any I/O traffic.
15079  *
15080  * Return codes
15081  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15082  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15083  */
15084 static pci_ers_result_t
15085 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
15086 {
15087         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15088         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15089         struct lpfc_sli *psli = &phba->sli;
15090         uint32_t intr_mode;
15091
15092         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
15093         if (pci_enable_device_mem(pdev)) {
15094                 printk(KERN_ERR "lpfc: Cannot re-enable "
15095                         "PCI device after reset.\n");
15096                 return PCI_ERS_RESULT_DISCONNECT;
15097         }
15098
15099         pci_restore_state(pdev);
15100
15101         phba->hba_flag &= ~HBA_PCI_ERR;
15102         /*
15103          * As the new kernel behavior of pci_restore_state() API call clears
15104          * device saved_state flag, need to save the restored state again.
15105          */
15106         pci_save_state(pdev);
15107
15108         if (pdev->is_busmaster)
15109                 pci_set_master(pdev);
15110
15111         spin_lock_irq(&phba->hbalock);
15112         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
15113         spin_unlock_irq(&phba->hbalock);
15114
15115         /* Init cpu_map array */
15116         lpfc_cpu_map_array_init(phba);
15117         /* Configure and enable interrupt */
15118         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
15119         if (intr_mode == LPFC_INTR_ERROR) {
15120                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15121                                 "2824 Cannot re-enable interrupt after "
15122                                 "slot reset.\n");
15123                 return PCI_ERS_RESULT_DISCONNECT;
15124         } else
15125                 phba->intr_mode = intr_mode;
15126         lpfc_cpu_affinity_check(phba, phba->cfg_irq_chann);
15127
15128         /* Log the current active interrupt mode */
15129         lpfc_log_intr_mode(phba, phba->intr_mode);
15130
15131         return PCI_ERS_RESULT_RECOVERED;
15132 }
15133
15134 /**
15135  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
15136  * @pdev: pointer to PCI device
15137  *
15138  * This routine is called from the PCI subsystem for error handling to device
15139  * with SLI-4 interface spec. It is called when kernel error recovery tells
15140  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
15141  * error recovery. After this call, traffic can start to flow from this device
15142  * again.
15143  **/
15144 static void
15145 lpfc_io_resume_s4(struct pci_dev *pdev)
15146 {
15147         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15148         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15149
15150         /*
15151          * In case of slot reset, as function reset is performed through
15152          * mailbox command which needs DMA to be enabled, this operation
15153          * has to be moved to the io resume phase. Taking device offline
15154          * will perform the necessary cleanup.
15155          */
15156         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
15157                 /* Perform device reset */
15158                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
15159                 lpfc_offline(phba);
15160                 lpfc_sli_brdrestart(phba);
15161                 /* Bring the device back online */
15162                 lpfc_online(phba);
15163         }
15164 }
15165
15166 /**
15167  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
15168  * @pdev: pointer to PCI device
15169  * @pid: pointer to PCI device identifier
15170  *
15171  * This routine is to be registered to the kernel's PCI subsystem. When an
15172  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
15173  * at PCI device-specific information of the device and driver to see if the
15174  * driver state that it can support this kind of device. If the match is
15175  * successful, the driver core invokes this routine. This routine dispatches
15176  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
15177  * do all the initialization that it needs to do to handle the HBA device
15178  * properly.
15179  *
15180  * Return code
15181  *      0 - driver can claim the device
15182  *      negative value - driver can not claim the device
15183  **/
15184 static int
15185 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
15186 {
15187         int rc;
15188         struct lpfc_sli_intf intf;
15189
15190         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
15191                 return -ENODEV;
15192
15193         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
15194             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
15195                 rc = lpfc_pci_probe_one_s4(pdev, pid);
15196         else
15197                 rc = lpfc_pci_probe_one_s3(pdev, pid);
15198
15199         return rc;
15200 }
15201
15202 /**
15203  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
15204  * @pdev: pointer to PCI device
15205  *
15206  * This routine is to be registered to the kernel's PCI subsystem. When an
15207  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
15208  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
15209  * remove routine, which will perform all the necessary cleanup for the
15210  * device to be removed from the PCI subsystem properly.
15211  **/
15212 static void
15213 lpfc_pci_remove_one(struct pci_dev *pdev)
15214 {
15215         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15216         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15217
15218         switch (phba->pci_dev_grp) {
15219         case LPFC_PCI_DEV_LP:
15220                 lpfc_pci_remove_one_s3(pdev);
15221                 break;
15222         case LPFC_PCI_DEV_OC:
15223                 lpfc_pci_remove_one_s4(pdev);
15224                 break;
15225         default:
15226                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15227                                 "1424 Invalid PCI device group: 0x%x\n",
15228                                 phba->pci_dev_grp);
15229                 break;
15230         }
15231         return;
15232 }
15233
15234 /**
15235  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
15236  * @dev: pointer to device
15237  *
15238  * This routine is to be registered to the kernel's PCI subsystem to support
15239  * system Power Management (PM). When PM invokes this method, it dispatches
15240  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
15241  * suspend the device.
15242  *
15243  * Return code
15244  *      0 - driver suspended the device
15245  *      Error otherwise
15246  **/
15247 static int __maybe_unused
15248 lpfc_pci_suspend_one(struct device *dev)
15249 {
15250         struct Scsi_Host *shost = dev_get_drvdata(dev);
15251         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15252         int rc = -ENODEV;
15253
15254         switch (phba->pci_dev_grp) {
15255         case LPFC_PCI_DEV_LP:
15256                 rc = lpfc_pci_suspend_one_s3(dev);
15257                 break;
15258         case LPFC_PCI_DEV_OC:
15259                 rc = lpfc_pci_suspend_one_s4(dev);
15260                 break;
15261         default:
15262                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15263                                 "1425 Invalid PCI device group: 0x%x\n",
15264                                 phba->pci_dev_grp);
15265                 break;
15266         }
15267         return rc;
15268 }
15269
15270 /**
15271  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
15272  * @dev: pointer to device
15273  *
15274  * This routine is to be registered to the kernel's PCI subsystem to support
15275  * system Power Management (PM). When PM invokes this method, it dispatches
15276  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
15277  * resume the device.
15278  *
15279  * Return code
15280  *      0 - driver suspended the device
15281  *      Error otherwise
15282  **/
15283 static int __maybe_unused
15284 lpfc_pci_resume_one(struct device *dev)
15285 {
15286         struct Scsi_Host *shost = dev_get_drvdata(dev);
15287         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15288         int rc = -ENODEV;
15289
15290         switch (phba->pci_dev_grp) {
15291         case LPFC_PCI_DEV_LP:
15292                 rc = lpfc_pci_resume_one_s3(dev);
15293                 break;
15294         case LPFC_PCI_DEV_OC:
15295                 rc = lpfc_pci_resume_one_s4(dev);
15296                 break;
15297         default:
15298                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15299                                 "1426 Invalid PCI device group: 0x%x\n",
15300                                 phba->pci_dev_grp);
15301                 break;
15302         }
15303         return rc;
15304 }
15305
15306 /**
15307  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
15308  * @pdev: pointer to PCI device.
15309  * @state: the current PCI connection state.
15310  *
15311  * This routine is registered to the PCI subsystem for error handling. This
15312  * function is called by the PCI subsystem after a PCI bus error affecting
15313  * this device has been detected. When this routine is invoked, it dispatches
15314  * the action to the proper SLI-3 or SLI-4 device error detected handling
15315  * routine, which will perform the proper error detected operation.
15316  *
15317  * Return codes
15318  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
15319  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15320  **/
15321 static pci_ers_result_t
15322 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
15323 {
15324         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15325         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15326         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15327
15328         if (phba->link_state == LPFC_HBA_ERROR &&
15329             phba->hba_flag & HBA_IOQ_FLUSH)
15330                 return PCI_ERS_RESULT_NEED_RESET;
15331
15332         switch (phba->pci_dev_grp) {
15333         case LPFC_PCI_DEV_LP:
15334                 rc = lpfc_io_error_detected_s3(pdev, state);
15335                 break;
15336         case LPFC_PCI_DEV_OC:
15337                 rc = lpfc_io_error_detected_s4(pdev, state);
15338                 break;
15339         default:
15340                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15341                                 "1427 Invalid PCI device group: 0x%x\n",
15342                                 phba->pci_dev_grp);
15343                 break;
15344         }
15345         return rc;
15346 }
15347
15348 /**
15349  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
15350  * @pdev: pointer to PCI device.
15351  *
15352  * This routine is registered to the PCI subsystem for error handling. This
15353  * function is called after PCI bus has been reset to restart the PCI card
15354  * from scratch, as if from a cold-boot. When this routine is invoked, it
15355  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
15356  * routine, which will perform the proper device reset.
15357  *
15358  * Return codes
15359  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
15360  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
15361  **/
15362 static pci_ers_result_t
15363 lpfc_io_slot_reset(struct pci_dev *pdev)
15364 {
15365         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15366         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15367         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
15368
15369         switch (phba->pci_dev_grp) {
15370         case LPFC_PCI_DEV_LP:
15371                 rc = lpfc_io_slot_reset_s3(pdev);
15372                 break;
15373         case LPFC_PCI_DEV_OC:
15374                 rc = lpfc_io_slot_reset_s4(pdev);
15375                 break;
15376         default:
15377                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15378                                 "1428 Invalid PCI device group: 0x%x\n",
15379                                 phba->pci_dev_grp);
15380                 break;
15381         }
15382         return rc;
15383 }
15384
15385 /**
15386  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
15387  * @pdev: pointer to PCI device
15388  *
15389  * This routine is registered to the PCI subsystem for error handling. It
15390  * is called when kernel error recovery tells the lpfc driver that it is
15391  * OK to resume normal PCI operation after PCI bus error recovery. When
15392  * this routine is invoked, it dispatches the action to the proper SLI-3
15393  * or SLI-4 device io_resume routine, which will resume the device operation.
15394  **/
15395 static void
15396 lpfc_io_resume(struct pci_dev *pdev)
15397 {
15398         struct Scsi_Host *shost = pci_get_drvdata(pdev);
15399         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
15400
15401         switch (phba->pci_dev_grp) {
15402         case LPFC_PCI_DEV_LP:
15403                 lpfc_io_resume_s3(pdev);
15404                 break;
15405         case LPFC_PCI_DEV_OC:
15406                 lpfc_io_resume_s4(pdev);
15407                 break;
15408         default:
15409                 lpfc_printf_log(phba, KERN_ERR, LOG_TRACE_EVENT,
15410                                 "1429 Invalid PCI device group: 0x%x\n",
15411                                 phba->pci_dev_grp);
15412                 break;
15413         }
15414         return;
15415 }
15416
15417 /**
15418  * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
15419  * @phba: pointer to lpfc hba data structure.
15420  *
15421  * This routine checks to see if OAS is supported for this adapter. If
15422  * supported, the configure Flash Optimized Fabric flag is set.  Otherwise,
15423  * the enable oas flag is cleared and the pool created for OAS device data
15424  * is destroyed.
15425  *
15426  **/
15427 static void
15428 lpfc_sli4_oas_verify(struct lpfc_hba *phba)
15429 {
15430
15431         if (!phba->cfg_EnableXLane)
15432                 return;
15433
15434         if (phba->sli4_hba.pc_sli4_params.oas_supported) {
15435                 phba->cfg_fof = 1;
15436         } else {
15437                 phba->cfg_fof = 0;
15438                 mempool_destroy(phba->device_data_mem_pool);
15439                 phba->device_data_mem_pool = NULL;
15440         }
15441
15442         return;
15443 }
15444
15445 /**
15446  * lpfc_sli4_ras_init - Verify RAS-FW log is supported by this adapter
15447  * @phba: pointer to lpfc hba data structure.
15448  *
15449  * This routine checks to see if RAS is supported by the adapter. Check the
15450  * function through which RAS support enablement is to be done.
15451  **/
15452 void
15453 lpfc_sli4_ras_init(struct lpfc_hba *phba)
15454 {
15455         /* if ASIC_GEN_NUM >= 0xC) */
15456         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
15457                     LPFC_SLI_INTF_IF_TYPE_6) ||
15458             (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) ==
15459                     LPFC_SLI_INTF_FAMILY_G6)) {
15460                 phba->ras_fwlog.ras_hwsupport = true;
15461                 if (phba->cfg_ras_fwlog_func == PCI_FUNC(phba->pcidev->devfn) &&
15462                     phba->cfg_ras_fwlog_buffsize)
15463                         phba->ras_fwlog.ras_enabled = true;
15464                 else
15465                         phba->ras_fwlog.ras_enabled = false;
15466         } else {
15467                 phba->ras_fwlog.ras_hwsupport = false;
15468         }
15469 }
15470
15471
15472 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
15473
15474 static const struct pci_error_handlers lpfc_err_handler = {
15475         .error_detected = lpfc_io_error_detected,
15476         .slot_reset = lpfc_io_slot_reset,
15477         .resume = lpfc_io_resume,
15478 };
15479
15480 static SIMPLE_DEV_PM_OPS(lpfc_pci_pm_ops_one,
15481                          lpfc_pci_suspend_one,
15482                          lpfc_pci_resume_one);
15483
15484 static struct pci_driver lpfc_driver = {
15485         .name           = LPFC_DRIVER_NAME,
15486         .id_table       = lpfc_id_table,
15487         .probe          = lpfc_pci_probe_one,
15488         .remove         = lpfc_pci_remove_one,
15489         .shutdown       = lpfc_pci_remove_one,
15490         .driver.pm      = &lpfc_pci_pm_ops_one,
15491         .err_handler    = &lpfc_err_handler,
15492 };
15493
15494 static const struct file_operations lpfc_mgmt_fop = {
15495         .owner = THIS_MODULE,
15496 };
15497
15498 static struct miscdevice lpfc_mgmt_dev = {
15499         .minor = MISC_DYNAMIC_MINOR,
15500         .name = "lpfcmgmt",
15501         .fops = &lpfc_mgmt_fop,
15502 };
15503
15504 /**
15505  * lpfc_init - lpfc module initialization routine
15506  *
15507  * This routine is to be invoked when the lpfc module is loaded into the
15508  * kernel. The special kernel macro module_init() is used to indicate the
15509  * role of this routine to the kernel as lpfc module entry point.
15510  *
15511  * Return codes
15512  *   0 - successful
15513  *   -ENOMEM - FC attach transport failed
15514  *   all others - failed
15515  */
15516 static int __init
15517 lpfc_init(void)
15518 {
15519         int error = 0;
15520
15521         pr_info(LPFC_MODULE_DESC "\n");
15522         pr_info(LPFC_COPYRIGHT "\n");
15523
15524         error = misc_register(&lpfc_mgmt_dev);
15525         if (error)
15526                 printk(KERN_ERR "Could not register lpfcmgmt device, "
15527                         "misc_register returned with status %d", error);
15528
15529         error = -ENOMEM;
15530         lpfc_transport_functions.vport_create = lpfc_vport_create;
15531         lpfc_transport_functions.vport_delete = lpfc_vport_delete;
15532         lpfc_transport_template =
15533                                 fc_attach_transport(&lpfc_transport_functions);
15534         if (lpfc_transport_template == NULL)
15535                 goto unregister;
15536         lpfc_vport_transport_template =
15537                 fc_attach_transport(&lpfc_vport_transport_functions);
15538         if (lpfc_vport_transport_template == NULL) {
15539                 fc_release_transport(lpfc_transport_template);
15540                 goto unregister;
15541         }
15542         lpfc_wqe_cmd_template();
15543         lpfc_nvmet_cmd_template();
15544
15545         /* Initialize in case vector mapping is needed */
15546         lpfc_present_cpu = num_present_cpus();
15547
15548         error = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
15549                                         "lpfc/sli4:online",
15550                                         lpfc_cpu_online, lpfc_cpu_offline);
15551         if (error < 0)
15552                 goto cpuhp_failure;
15553         lpfc_cpuhp_state = error;
15554
15555         error = pci_register_driver(&lpfc_driver);
15556         if (error)
15557                 goto unwind;
15558
15559         return error;
15560
15561 unwind:
15562         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15563 cpuhp_failure:
15564         fc_release_transport(lpfc_transport_template);
15565         fc_release_transport(lpfc_vport_transport_template);
15566 unregister:
15567         misc_deregister(&lpfc_mgmt_dev);
15568
15569         return error;
15570 }
15571
15572 void lpfc_dmp_dbg(struct lpfc_hba *phba)
15573 {
15574         unsigned int start_idx;
15575         unsigned int dbg_cnt;
15576         unsigned int temp_idx;
15577         int i;
15578         int j = 0;
15579         unsigned long rem_nsec;
15580
15581         if (atomic_cmpxchg(&phba->dbg_log_dmping, 0, 1) != 0)
15582                 return;
15583
15584         start_idx = (unsigned int)atomic_read(&phba->dbg_log_idx) % DBG_LOG_SZ;
15585         dbg_cnt = (unsigned int)atomic_read(&phba->dbg_log_cnt);
15586         if (!dbg_cnt)
15587                 goto out;
15588         temp_idx = start_idx;
15589         if (dbg_cnt >= DBG_LOG_SZ) {
15590                 dbg_cnt = DBG_LOG_SZ;
15591                 temp_idx -= 1;
15592         } else {
15593                 if ((start_idx + dbg_cnt) > (DBG_LOG_SZ - 1)) {
15594                         temp_idx = (start_idx + dbg_cnt) % DBG_LOG_SZ;
15595                 } else {
15596                         if (start_idx < dbg_cnt)
15597                                 start_idx = DBG_LOG_SZ - (dbg_cnt - start_idx);
15598                         else
15599                                 start_idx -= dbg_cnt;
15600                 }
15601         }
15602         dev_info(&phba->pcidev->dev, "start %d end %d cnt %d\n",
15603                  start_idx, temp_idx, dbg_cnt);
15604
15605         for (i = 0; i < dbg_cnt; i++) {
15606                 if ((start_idx + i) < DBG_LOG_SZ)
15607                         temp_idx = (start_idx + i) % DBG_LOG_SZ;
15608                 else
15609                         temp_idx = j++;
15610                 rem_nsec = do_div(phba->dbg_log[temp_idx].t_ns, NSEC_PER_SEC);
15611                 dev_info(&phba->pcidev->dev, "%d: [%5lu.%06lu] %s",
15612                          temp_idx,
15613                          (unsigned long)phba->dbg_log[temp_idx].t_ns,
15614                          rem_nsec / 1000,
15615                          phba->dbg_log[temp_idx].log);
15616         }
15617 out:
15618         atomic_set(&phba->dbg_log_cnt, 0);
15619         atomic_set(&phba->dbg_log_dmping, 0);
15620 }
15621
15622 __printf(2, 3)
15623 void lpfc_dbg_print(struct lpfc_hba *phba, const char *fmt, ...)
15624 {
15625         unsigned int idx;
15626         va_list args;
15627         int dbg_dmping = atomic_read(&phba->dbg_log_dmping);
15628         struct va_format vaf;
15629
15630
15631         va_start(args, fmt);
15632         if (unlikely(dbg_dmping)) {
15633                 vaf.fmt = fmt;
15634                 vaf.va = &args;
15635                 dev_info(&phba->pcidev->dev, "%pV", &vaf);
15636                 va_end(args);
15637                 return;
15638         }
15639         idx = (unsigned int)atomic_fetch_add(1, &phba->dbg_log_idx) %
15640                 DBG_LOG_SZ;
15641
15642         atomic_inc(&phba->dbg_log_cnt);
15643
15644         vscnprintf(phba->dbg_log[idx].log,
15645                    sizeof(phba->dbg_log[idx].log), fmt, args);
15646         va_end(args);
15647
15648         phba->dbg_log[idx].t_ns = local_clock();
15649 }
15650
15651 /**
15652  * lpfc_exit - lpfc module removal routine
15653  *
15654  * This routine is invoked when the lpfc module is removed from the kernel.
15655  * The special kernel macro module_exit() is used to indicate the role of
15656  * this routine to the kernel as lpfc module exit point.
15657  */
15658 static void __exit
15659 lpfc_exit(void)
15660 {
15661         misc_deregister(&lpfc_mgmt_dev);
15662         pci_unregister_driver(&lpfc_driver);
15663         cpuhp_remove_multi_state(lpfc_cpuhp_state);
15664         fc_release_transport(lpfc_transport_template);
15665         fc_release_transport(lpfc_vport_transport_template);
15666         idr_destroy(&lpfc_hba_index);
15667 }
15668
15669 module_init(lpfc_init);
15670 module_exit(lpfc_exit);
15671 MODULE_LICENSE("GPL");
15672 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
15673 MODULE_AUTHOR("Broadcom");
15674 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);