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) 2004-2012 Emulex.  All rights reserved.           *
   5  * EMULEX and SLI are trademarks of Emulex.                        *
   6  * www.emulex.com                                                  *
   7  * Portions Copyright (C) 2004-2005 Christoph Hellwig              *
   8  *                                                                 *
   9  * This program is free software; you can redistribute it and/or   *
  10  * modify it under the terms of version 2 of the GNU General       *
  11  * Public License as published by the Free Software Foundation.    *
  12  * This program is distributed in the hope that it will be useful. *
  13  * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND          *
  14  * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,  *
  15  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE      *
  16  * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
  17  * TO BE LEGALLY INVALID.  See the GNU General Public License for  *
  18  * more details, a copy of which can be found in the file COPYING  *
  19  * included with this package.                                     *
  20  *******************************************************************/
  21
  22 #include <linux/blkdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/dma-mapping.h>
  25 #include <linux/idr.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/module.h>
  28 #include <linux/kthread.h>
  29 #include <linux/pci.h>
  30 #include <linux/spinlock.h>
  31 #include <linux/ctype.h>
  32 #include <linux/aer.h>
  33 #include <linux/slab.h>
  34 #include <linux/firmware.h>
  35 #include <linux/miscdevice.h>
  36
  37 #include <scsi/scsi.h>
  38 #include <scsi/scsi_device.h>
  39 #include <scsi/scsi_host.h>
  40 #include <scsi/scsi_transport_fc.h>
  41
  42 #include "lpfc_hw4.h"
  43 #include "lpfc_hw.h"
  44 #include "lpfc_sli.h"
  45 #include "lpfc_sli4.h"
  46 #include "lpfc_nl.h"
  47 #include "lpfc_disc.h"
  48 #include "lpfc_scsi.h"
  49 #include "lpfc.h"
  50 #include "lpfc_logmsg.h"
  51 #include "lpfc_crtn.h"
  52 #include "lpfc_vport.h"
  53 #include "lpfc_version.h"
  54
  55 char *_dump_buf_data;
  56 unsigned long _dump_buf_data_order;
  57 char *_dump_buf_dif;
  58 unsigned long _dump_buf_dif_order;
  59 spinlock_t _dump_buf_lock;
  60
  61 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  62 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  63 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
  64 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  65 static int lpfc_setup_endian_order(struct lpfc_hba *);
  66 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  67 static void lpfc_free_els_sgl_list(struct lpfc_hba *);
  68 static void lpfc_init_sgl_list(struct lpfc_hba *);
  69 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  70 static void lpfc_free_active_sgl(struct lpfc_hba *);
  71 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  72 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  73 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  75 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  76 static void lpfc_sli4_disable_intr(struct lpfc_hba *);
  77 static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
  78
  79 static struct scsi_transport_template *lpfc_transport_template = NULL;
  80 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  81 static DEFINE_IDR(lpfc_hba_index);
  82
  83 /**
  84  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  85  * @phba: pointer to lpfc hba data structure.
  86  *
  87  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  88  * mailbox command. It retrieves the revision information from the HBA and
  89  * collects the Vital Product Data (VPD) about the HBA for preparing the
  90  * configuration of the HBA.
  91  *
  92  * Return codes:
  93  *   0 - success.
  94  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  95  *   Any other value - indicates an error.
  96  **/
  97 int
  98 lpfc_config_port_prep(struct lpfc_hba *phba)
  99 {
 100         lpfc_vpd_t *vp = &phba->vpd;
 101         int i = 0, rc;
 102         LPFC_MBOXQ_t *pmb;
 103         MAILBOX_t *mb;
 104         char *lpfc_vpd_data = NULL;
 105         uint16_t offset = 0;
 106         static char licensed[56] =
 107                     "key unlock for use with gnu public licensed code only\0";
 108         static int init_key = 1;
 109
 110         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 111         if (!pmb) {
 112                 phba->link_state = LPFC_HBA_ERROR;
 113                 return -ENOMEM;
 114         }
 115
 116         mb = &pmb->u.mb;
 117         phba->link_state = LPFC_INIT_MBX_CMDS;
 118
 119         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 120                 if (init_key) {
 121                         uint32_t *ptext = (uint32_t *) licensed;
 122
 123                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 124                                 *ptext = cpu_to_be32(*ptext);
 125                         init_key = 0;
 126                 }
 127
 128                 lpfc_read_nv(phba, pmb);
 129                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 130                         sizeof (mb->un.varRDnvp.rsvd3));
 131                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 132                          sizeof (licensed));
 133
 134                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 135
 136                 if (rc != MBX_SUCCESS) {
 137                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 138                                         "0324 Config Port initialization "
 139                                         "error, mbxCmd x%x READ_NVPARM, "
 140                                         "mbxStatus x%x\n",
 141                                         mb->mbxCommand, mb->mbxStatus);
 142                         mempool_free(pmb, phba->mbox_mem_pool);
 143                         return -ERESTART;
 144                 }
 145                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 146                        sizeof(phba->wwnn));
 147                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 148                        sizeof(phba->wwpn));
 149         }
 150
 151         phba->sli3_options = 0x0;
 152
 153         /* Setup and issue mailbox READ REV command */
 154         lpfc_read_rev(phba, pmb);
 155         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 156         if (rc != MBX_SUCCESS) {
 157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 158                                 "0439 Adapter failed to init, mbxCmd x%x "
 159                                 "READ_REV, mbxStatus x%x\n",
 160                                 mb->mbxCommand, mb->mbxStatus);
 161                 mempool_free( pmb, phba->mbox_mem_pool);
 162                 return -ERESTART;
 163         }
 164
 165
 166         /*
 167          * The value of rr must be 1 since the driver set the cv field to 1.
 168          * This setting requires the FW to set all revision fields.
 169          */
 170         if (mb->un.varRdRev.rr == 0) {
 171                 vp->rev.rBit = 0;
 172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 173                                 "0440 Adapter failed to init, READ_REV has "
 174                                 "missing revision information.\n");
 175                 mempool_free(pmb, phba->mbox_mem_pool);
 176                 return -ERESTART;
 177         }
 178
 179         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 180                 mempool_free(pmb, phba->mbox_mem_pool);
 181                 return -EINVAL;
 182         }
 183
 184         /* Save information as VPD data */
 185         vp->rev.rBit = 1;
 186         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 187         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 188         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 189         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 190         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 191         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 192         vp->rev.smRev = mb->un.varRdRev.smRev;
 193         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 194         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 195         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 196         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 197         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 198         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 199         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 200         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 201
 202         /* If the sli feature level is less then 9, we must
 203          * tear down all RPIs and VPIs on link down if NPIV
 204          * is enabled.
 205          */
 206         if (vp->rev.feaLevelHigh < 9)
 207                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 208
 209         if (lpfc_is_LC_HBA(phba->pcidev->device))
 210                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 211                                                 sizeof (phba->RandomData));
 212
 213         /* Get adapter VPD information */
 214         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 215         if (!lpfc_vpd_data)
 216                 goto out_free_mbox;
 217         do {
 218                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 219                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 220
 221                 if (rc != MBX_SUCCESS) {
 222                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 223                                         "0441 VPD not present on adapter, "
 224                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 225                                         mb->mbxCommand, mb->mbxStatus);
 226                         mb->un.varDmp.word_cnt = 0;
 227                 }
 228                 /* dump mem may return a zero when finished or we got a
 229                  * mailbox error, either way we are done.
 230                  */
 231                 if (mb->un.varDmp.word_cnt == 0)
 232                         break;
 233                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 234                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 235                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 236                                       lpfc_vpd_data + offset,
 237                                       mb->un.varDmp.word_cnt);
 238                 offset += mb->un.varDmp.word_cnt;
 239         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 240         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 241
 242         kfree(lpfc_vpd_data);
 243 out_free_mbox:
 244         mempool_free(pmb, phba->mbox_mem_pool);
 245         return 0;
 246 }
 247
 248 /**
 249  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 250  * @phba: pointer to lpfc hba data structure.
 251  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 252  *
 253  * This is the completion handler for driver's configuring asynchronous event
 254  * mailbox command to the device. If the mailbox command returns successfully,
 255  * it will set internal async event support flag to 1; otherwise, it will
 256  * set internal async event support flag to 0.
 257  **/
 258 static void
 259 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 260 {
 261         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 262                 phba->temp_sensor_support = 1;
 263         else
 264                 phba->temp_sensor_support = 0;
 265         mempool_free(pmboxq, phba->mbox_mem_pool);
 266         return;
 267 }
 268
 269 /**
 270  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 271  * @phba: pointer to lpfc hba data structure.
 272  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 273  *
 274  * This is the completion handler for dump mailbox command for getting
 275  * wake up parameters. When this command complete, the response contain
 276  * Option rom version of the HBA. This function translate the version number
 277  * into a human readable string and store it in OptionROMVersion.
 278  **/
 279 static void
 280 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 281 {
 282         struct prog_id *prg;
 283         uint32_t prog_id_word;
 284         char dist = ' ';
 285         /* character array used for decoding dist type. */
 286         char dist_char[] = "nabx";
 287
 288         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 289                 mempool_free(pmboxq, phba->mbox_mem_pool);
 290                 return;
 291         }
 292
 293         prg = (struct prog_id *) &prog_id_word;
 294
 295         /* word 7 contain option rom version */
 296         prog_id_word = pmboxq->u.mb.un.varWords[7];
 297
 298         /* Decode the Option rom version word to a readable string */
 299         if (prg->dist < 4)
 300                 dist = dist_char[prg->dist];
 301
 302         if ((prg->dist == 3) && (prg->num == 0))
 303                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 304                         prg->ver, prg->rev, prg->lev);
 305         else
 306                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 307                         prg->ver, prg->rev, prg->lev,
 308                         dist, prg->num);
 309         mempool_free(pmboxq, phba->mbox_mem_pool);
 310         return;
 311 }
 312
 313 /**
 314  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 315  *      cfg_soft_wwnn, cfg_soft_wwpn
 316  * @vport: pointer to lpfc vport data structure.
 317  *
 318  *
 319  * Return codes
 320  *   None.
 321  **/
 322 void
 323 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 324 {
 325         /* If the soft name exists then update it using the service params */
 326         if (vport->phba->cfg_soft_wwnn)
 327                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 328                            vport->fc_sparam.nodeName.u.wwn);
 329         if (vport->phba->cfg_soft_wwpn)
 330                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 331                            vport->fc_sparam.portName.u.wwn);
 332
 333         /*
 334          * If the name is empty or there exists a soft name
 335          * then copy the service params name, otherwise use the fc name
 336          */
 337         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 338                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 339                         sizeof(struct lpfc_name));
 340         else
 341                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 342                         sizeof(struct lpfc_name));
 343
 344         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 345                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 346                         sizeof(struct lpfc_name));
 347         else
 348                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 349                         sizeof(struct lpfc_name));
 350 }
 351
 352 /**
 353  * lpfc_config_port_post - Perform lpfc initialization after config port
 354  * @phba: pointer to lpfc hba data structure.
 355  *
 356  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 357  * command call. It performs all internal resource and state setups on the
 358  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 359  * ELS ring timers, etc.
 360  *
 361  * Return codes
 362  *   0 - success.
 363  *   Any other value - error.
 364  **/
 365 int
 366 lpfc_config_port_post(struct lpfc_hba *phba)
 367 {
 368         struct lpfc_vport *vport = phba->pport;
 369         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 370         LPFC_MBOXQ_t *pmb;
 371         MAILBOX_t *mb;
 372         struct lpfc_dmabuf *mp;
 373         struct lpfc_sli *psli = &phba->sli;
 374         uint32_t status, timeout;
 375         int i, j;
 376         int rc;
 377
 378         spin_lock_irq(&phba->hbalock);
 379         /*
 380          * If the Config port completed correctly the HBA is not
 381          * over heated any more.
 382          */
 383         if (phba->over_temp_state == HBA_OVER_TEMP)
 384                 phba->over_temp_state = HBA_NORMAL_TEMP;
 385         spin_unlock_irq(&phba->hbalock);
 386
 387         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 388         if (!pmb) {
 389                 phba->link_state = LPFC_HBA_ERROR;
 390                 return -ENOMEM;
 391         }
 392         mb = &pmb->u.mb;
 393
 394         /* Get login parameters for NID.  */
 395         rc = lpfc_read_sparam(phba, pmb, 0);
 396         if (rc) {
 397                 mempool_free(pmb, phba->mbox_mem_pool);
 398                 return -ENOMEM;
 399         }
 400
 401         pmb->vport = vport;
 402         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 404                                 "0448 Adapter failed init, mbxCmd x%x "
 405                                 "READ_SPARM mbxStatus x%x\n",
 406                                 mb->mbxCommand, mb->mbxStatus);
 407                 phba->link_state = LPFC_HBA_ERROR;
 408                 mp = (struct lpfc_dmabuf *) pmb->context1;
 409                 mempool_free(pmb, phba->mbox_mem_pool);
 410                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 411                 kfree(mp);
 412                 return -EIO;
 413         }
 414
 415         mp = (struct lpfc_dmabuf *) pmb->context1;
 416
 417         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 418         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 419         kfree(mp);
 420         pmb->context1 = NULL;
 421         lpfc_update_vport_wwn(vport);
 422
 423         /* Update the fc_host data structures with new wwn. */
 424         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 425         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 426         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 427
 428         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 429         /* This should be consolidated into parse_vpd ? - mr */
 430         if (phba->SerialNumber[0] == 0) {
 431                 uint8_t *outptr;
 432
 433                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 434                 for (i = 0; i < 12; i++) {
 435                         status = *outptr++;
 436                         j = ((status & 0xf0) >> 4);
 437                         if (j <= 9)
 438                                 phba->SerialNumber[i] =
 439                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 440                         else
 441                                 phba->SerialNumber[i] =
 442                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 443                         i++;
 444                         j = (status & 0xf);
 445                         if (j <= 9)
 446                                 phba->SerialNumber[i] =
 447                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 448                         else
 449                                 phba->SerialNumber[i] =
 450                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 451                 }
 452         }
 453
 454         lpfc_read_config(phba, pmb);
 455         pmb->vport = vport;
 456         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 457                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 458                                 "0453 Adapter failed to init, mbxCmd x%x "
 459                                 "READ_CONFIG, mbxStatus x%x\n",
 460                                 mb->mbxCommand, mb->mbxStatus);
 461                 phba->link_state = LPFC_HBA_ERROR;
 462                 mempool_free( pmb, phba->mbox_mem_pool);
 463                 return -EIO;
 464         }
 465
 466         /* Check if the port is disabled */
 467         lpfc_sli_read_link_ste(phba);
 468
 469         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 470         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 471                 phba->cfg_hba_queue_depth =
 472                         (mb->un.varRdConfig.max_xri + 1) -
 473                                         lpfc_sli4_get_els_iocb_cnt(phba);
 474
 475         phba->lmt = mb->un.varRdConfig.lmt;
 476
 477         /* Get the default values for Model Name and Description */
 478         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 479
 480         phba->link_state = LPFC_LINK_DOWN;
 481
 482         /* Only process IOCBs on ELS ring till hba_state is READY */
 483         if (psli->ring[psli->extra_ring].cmdringaddr)
 484                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 485         if (psli->ring[psli->fcp_ring].cmdringaddr)
 486                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 487         if (psli->ring[psli->next_ring].cmdringaddr)
 488                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 489
 490         /* Post receive buffers for desired rings */
 491         if (phba->sli_rev != 3)
 492                 lpfc_post_rcv_buf(phba);
 493
 494         /*
 495          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 496          */
 497         if (phba->intr_type == MSIX) {
 498                 rc = lpfc_config_msi(phba, pmb);
 499                 if (rc) {
 500                         mempool_free(pmb, phba->mbox_mem_pool);
 501                         return -EIO;
 502                 }
 503                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 504                 if (rc != MBX_SUCCESS) {
 505                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 506                                         "0352 Config MSI mailbox command "
 507                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 508                                         pmb->u.mb.mbxCommand,
 509                                         pmb->u.mb.mbxStatus);
 510                         mempool_free(pmb, phba->mbox_mem_pool);
 511                         return -EIO;
 512                 }
 513         }
 514
 515         spin_lock_irq(&phba->hbalock);
 516         /* Initialize ERATT handling flag */
 517         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 518
 519         /* Enable appropriate host interrupts */
 520         if (lpfc_readl(phba->HCregaddr, &status)) {
 521                 spin_unlock_irq(&phba->hbalock);
 522                 return -EIO;
 523         }
 524         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 525         if (psli->num_rings > 0)
 526                 status |= HC_R0INT_ENA;
 527         if (psli->num_rings > 1)
 528                 status |= HC_R1INT_ENA;
 529         if (psli->num_rings > 2)
 530                 status |= HC_R2INT_ENA;
 531         if (psli->num_rings > 3)
 532                 status |= HC_R3INT_ENA;
 533
 534         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 535             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 536                 status &= ~(HC_R0INT_ENA);
 537
 538         writel(status, phba->HCregaddr);
 539         readl(phba->HCregaddr); /* flush */
 540         spin_unlock_irq(&phba->hbalock);
 541
 542         /* Set up ring-0 (ELS) timer */
 543         timeout = phba->fc_ratov * 2;
 544         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 545         /* Set up heart beat (HB) timer */
 546         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 547         phba->hb_outstanding = 0;
 548         phba->last_completion_time = jiffies;
 549         /* Set up error attention (ERATT) polling timer */
 550         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 551
 552         if (phba->hba_flag & LINK_DISABLED) {
 553                 lpfc_printf_log(phba,
 554                         KERN_ERR, LOG_INIT,
 555                         "2598 Adapter Link is disabled.\n");
 556                 lpfc_down_link(phba, pmb);
 557                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 560                         lpfc_printf_log(phba,
 561                         KERN_ERR, LOG_INIT,
 562                         "2599 Adapter failed to issue DOWN_LINK"
 563                         " mbox command rc 0x%x\n", rc);
 564
 565                         mempool_free(pmb, phba->mbox_mem_pool);
 566                         return -EIO;
 567                 }
 568         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 569                 mempool_free(pmb, phba->mbox_mem_pool);
 570                 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
 571                 if (rc)
 572                         return rc;
 573         }
 574         /* MBOX buffer will be freed in mbox compl */
 575         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 576         if (!pmb) {
 577                 phba->link_state = LPFC_HBA_ERROR;
 578                 return -ENOMEM;
 579         }
 580
 581         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 582         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 583         pmb->vport = phba->pport;
 584         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 585
 586         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 587                 lpfc_printf_log(phba,
 588                                 KERN_ERR,
 589                                 LOG_INIT,
 590                                 "0456 Adapter failed to issue "
 591                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 592                                 rc);
 593                 mempool_free(pmb, phba->mbox_mem_pool);
 594         }
 595
 596         /* Get Option rom version */
 597         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 598         if (!pmb) {
 599                 phba->link_state = LPFC_HBA_ERROR;
 600                 return -ENOMEM;
 601         }
 602
 603         lpfc_dump_wakeup_param(phba, pmb);
 604         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 605         pmb->vport = phba->pport;
 606         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 607
 608         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 609                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 610                                 "to get Option ROM version status x%x\n", rc);
 611                 mempool_free(pmb, phba->mbox_mem_pool);
 612         }
 613
 614         return 0;
 615 }
 616
 617 /**
 618  * lpfc_hba_init_link - Initialize the FC link
 619  * @phba: pointer to lpfc hba data structure.
 620  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 621  *
 622  * This routine will issue the INIT_LINK mailbox command call.
 623  * It is available to other drivers through the lpfc_hba data
 624  * structure for use as a delayed link up mechanism with the
 625  * module parameter lpfc_suppress_link_up.
 626  *
 627  * Return code
 628  *              0 - success
 629  *              Any other value - error
 630  **/
 631 int
 632 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 633 {
 634         return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
 635 }
 636
 637 /**
 638  * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
 639  * @phba: pointer to lpfc hba data structure.
 640  * @fc_topology: desired fc topology.
 641  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 642  *
 643  * This routine will issue the INIT_LINK mailbox command call.
 644  * It is available to other drivers through the lpfc_hba data
 645  * structure for use as a delayed link up mechanism with the
 646  * module parameter lpfc_suppress_link_up.
 647  *
 648  * Return code
 649  *              0 - success
 650  *              Any other value - error
 651  **/
 652 int
 653 lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
 654                                uint32_t flag)
 655 {
 656         struct lpfc_vport *vport = phba->pport;
 657         LPFC_MBOXQ_t *pmb;
 658         MAILBOX_t *mb;
 659         int rc;
 660
 661         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 662         if (!pmb) {
 663                 phba->link_state = LPFC_HBA_ERROR;
 664                 return -ENOMEM;
 665         }
 666         mb = &pmb->u.mb;
 667         pmb->vport = vport;
 668
 669         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
 670             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
 671              !(phba->lmt & LMT_1Gb)) ||
 672             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
 673              !(phba->lmt & LMT_2Gb)) ||
 674             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
 675              !(phba->lmt & LMT_4Gb)) ||
 676             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
 677              !(phba->lmt & LMT_8Gb)) ||
 678             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
 679              !(phba->lmt & LMT_10Gb)) ||
 680             ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
 681              !(phba->lmt & LMT_16Gb))) {
 682                 /* Reset link speed to auto */
 683                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 684                         "1302 Invalid speed for this board:%d "
 685                         "Reset link speed to auto.\n",
 686                         phba->cfg_link_speed);
 687                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 688         }
 689         lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 690         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 691         if (phba->sli_rev < LPFC_SLI_REV4)
 692                 lpfc_set_loopback_flag(phba);
 693         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 694         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 695                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 696                         "0498 Adapter failed to init, mbxCmd x%x "
 697                         "INIT_LINK, mbxStatus x%x\n",
 698                         mb->mbxCommand, mb->mbxStatus);
 699                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 700                         /* Clear all interrupt enable conditions */
 701                         writel(0, phba->HCregaddr);
 702                         readl(phba->HCregaddr); /* flush */
 703                         /* Clear all pending interrupts */
 704                         writel(0xffffffff, phba->HAregaddr);
 705                         readl(phba->HAregaddr); /* flush */
 706                 }
 707                 phba->link_state = LPFC_HBA_ERROR;
 708                 if (rc != MBX_BUSY || flag == MBX_POLL)
 709                         mempool_free(pmb, phba->mbox_mem_pool);
 710                 return -EIO;
 711         }
 712         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 713         if (flag == MBX_POLL)
 714                 mempool_free(pmb, phba->mbox_mem_pool);
 715
 716         return 0;
 717 }
 718
 719 /**
 720  * lpfc_hba_down_link - this routine downs the FC link
 721  * @phba: pointer to lpfc hba data structure.
 722  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 723  *
 724  * This routine will issue the DOWN_LINK mailbox command call.
 725  * It is available to other drivers through the lpfc_hba data
 726  * structure for use to stop the link.
 727  *
 728  * Return code
 729  *              0 - success
 730  *              Any other value - error
 731  **/
 732 int
 733 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 734 {
 735         LPFC_MBOXQ_t *pmb;
 736         int rc;
 737
 738         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 739         if (!pmb) {
 740                 phba->link_state = LPFC_HBA_ERROR;
 741                 return -ENOMEM;
 742         }
 743
 744         lpfc_printf_log(phba,
 745                 KERN_ERR, LOG_INIT,
 746                 "0491 Adapter Link is disabled.\n");
 747         lpfc_down_link(phba, pmb);
 748         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 749         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 750         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 751                 lpfc_printf_log(phba,
 752                 KERN_ERR, LOG_INIT,
 753                 "2522 Adapter failed to issue DOWN_LINK"
 754                 " mbox command rc 0x%x\n", rc);
 755
 756                 mempool_free(pmb, phba->mbox_mem_pool);
 757                 return -EIO;
 758         }
 759         if (flag == MBX_POLL)
 760                 mempool_free(pmb, phba->mbox_mem_pool);
 761
 762         return 0;
 763 }
 764
 765 /**
 766  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 767  * @phba: pointer to lpfc HBA data structure.
 768  *
 769  * This routine will do LPFC uninitialization before the HBA is reset when
 770  * bringing down the SLI Layer.
 771  *
 772  * Return codes
 773  *   0 - success.
 774  *   Any other value - error.
 775  **/
 776 int
 777 lpfc_hba_down_prep(struct lpfc_hba *phba)
 778 {
 779         struct lpfc_vport **vports;
 780         int i;
 781
 782         if (phba->sli_rev <= LPFC_SLI_REV3) {
 783                 /* Disable interrupts */
 784                 writel(0, phba->HCregaddr);
 785                 readl(phba->HCregaddr); /* flush */
 786         }
 787
 788         if (phba->pport->load_flag & FC_UNLOADING)
 789                 lpfc_cleanup_discovery_resources(phba->pport);
 790         else {
 791                 vports = lpfc_create_vport_work_array(phba);
 792                 if (vports != NULL)
 793                         for (i = 0; i <= phba->max_vports &&
 794                                 vports[i] != NULL; i++)
 795                                 lpfc_cleanup_discovery_resources(vports[i]);
 796                 lpfc_destroy_vport_work_array(phba, vports);
 797         }
 798         return 0;
 799 }
 800
 801 /**
 802  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 803  * @phba: pointer to lpfc HBA data structure.
 804  *
 805  * This routine will do uninitialization after the HBA is reset when bring
 806  * down the SLI Layer.
 807  *
 808  * Return codes
 809  *   0 - success.
 810  *   Any other value - error.
 811  **/
 812 static int
 813 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 814 {
 815         struct lpfc_sli *psli = &phba->sli;
 816         struct lpfc_sli_ring *pring;
 817         struct lpfc_dmabuf *mp, *next_mp;
 818         LIST_HEAD(completions);
 819         int i;
 820
 821         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 822                 lpfc_sli_hbqbuf_free_all(phba);
 823         else {
 824                 /* Cleanup preposted buffers on the ELS ring */
 825                 pring = &psli->ring[LPFC_ELS_RING];
 826                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 827                         list_del(&mp->list);
 828                         pring->postbufq_cnt--;
 829                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 830                         kfree(mp);
 831                 }
 832         }
 833
 834         spin_lock_irq(&phba->hbalock);
 835         for (i = 0; i < psli->num_rings; i++) {
 836                 pring = &psli->ring[i];
 837
 838                 /* At this point in time the HBA is either reset or DOA. Either
 839                  * way, nothing should be on txcmplq as it will NEVER complete.
 840                  */
 841                 list_splice_init(&pring->txcmplq, &completions);
 842                 pring->txcmplq_cnt = 0;
 843                 spin_unlock_irq(&phba->hbalock);
 844
 845                 /* Cancel all the IOCBs from the completions list */
 846                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 847                                       IOERR_SLI_ABORTED);
 848
 849                 lpfc_sli_abort_iocb_ring(phba, pring);
 850                 spin_lock_irq(&phba->hbalock);
 851         }
 852         spin_unlock_irq(&phba->hbalock);
 853
 854         return 0;
 855 }
 856
 857 /**
 858  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 859  * @phba: pointer to lpfc HBA data structure.
 860  *
 861  * This routine will do uninitialization after the HBA is reset when bring
 862  * down the SLI Layer.
 863  *
 864  * Return codes
 865  *   0 - success.
 866  *   Any other value - error.
 867  **/
 868 static int
 869 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 870 {
 871         struct lpfc_scsi_buf *psb, *psb_next;
 872         LIST_HEAD(aborts);
 873         int ret;
 874         unsigned long iflag = 0;
 875         struct lpfc_sglq *sglq_entry = NULL;
 876
 877         ret = lpfc_hba_down_post_s3(phba);
 878         if (ret)
 879                 return ret;
 880         /* At this point in time the HBA is either reset or DOA. Either
 881          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 882          * on the lpfc_sgl_list so that it can either be freed if the
 883          * driver is unloading or reposted if the driver is restarting
 884          * the port.
 885          */
 886         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 887                                         /* scsl_buf_list */
 888         /* abts_sgl_list_lock required because worker thread uses this
 889          * list.
 890          */
 891         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 892         list_for_each_entry(sglq_entry,
 893                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 894                 sglq_entry->state = SGL_FREED;
 895
 896         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 897                         &phba->sli4_hba.lpfc_sgl_list);
 898         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 899         /* abts_scsi_buf_list_lock required because worker thread uses this
 900          * list.
 901          */
 902         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 903         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 904                         &aborts);
 905         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 906         spin_unlock_irq(&phba->hbalock);
 907
 908         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 909                 psb->pCmd = NULL;
 910                 psb->status = IOSTAT_SUCCESS;
 911         }
 912         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 913         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 914         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 915         return 0;
 916 }
 917
 918 /**
 919  * lpfc_hba_down_post - Wrapper func for hba down post routine
 920  * @phba: pointer to lpfc HBA data structure.
 921  *
 922  * This routine wraps the actual SLI3 or SLI4 routine for performing
 923  * uninitialization after the HBA is reset when bring down the SLI Layer.
 924  *
 925  * Return codes
 926  *   0 - success.
 927  *   Any other value - error.
 928  **/
 929 int
 930 lpfc_hba_down_post(struct lpfc_hba *phba)
 931 {
 932         return (*phba->lpfc_hba_down_post)(phba);
 933 }
 934
 935 /**
 936  * lpfc_hb_timeout - The HBA-timer timeout handler
 937  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 938  *
 939  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 940  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 941  * work-port-events bitmap and the worker thread is notified. This timeout
 942  * event will be used by the worker thread to invoke the actual timeout
 943  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 944  * be performed in the timeout handler and the HBA timeout event bit shall
 945  * be cleared by the worker thread after it has taken the event bitmap out.
 946  **/
 947 static void
 948 lpfc_hb_timeout(unsigned long ptr)
 949 {
 950         struct lpfc_hba *phba;
 951         uint32_t tmo_posted;
 952         unsigned long iflag;
 953
 954         phba = (struct lpfc_hba *)ptr;
 955
 956         /* Check for heart beat timeout conditions */
 957         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 958         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 959         if (!tmo_posted)
 960                 phba->pport->work_port_events |= WORKER_HB_TMO;
 961         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 962
 963         /* Tell the worker thread there is work to do */
 964         if (!tmo_posted)
 965                 lpfc_worker_wake_up(phba);
 966         return;
 967 }
 968
 969 /**
 970  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 971  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 972  *
 973  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 974  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 975  * work-port-events bitmap and the worker thread is notified. This timeout
 976  * event will be used by the worker thread to invoke the actual timeout
 977  * handler routine, lpfc_rrq_handler. Any periodical operations will
 978  * be performed in the timeout handler and the RRQ timeout event bit shall
 979  * be cleared by the worker thread after it has taken the event bitmap out.
 980  **/
 981 static void
 982 lpfc_rrq_timeout(unsigned long ptr)
 983 {
 984         struct lpfc_hba *phba;
 985         unsigned long iflag;
 986
 987         phba = (struct lpfc_hba *)ptr;
 988         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 989         phba->hba_flag |= HBA_RRQ_ACTIVE;
 990         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 991         lpfc_worker_wake_up(phba);
 992 }
 993
 994 /**
 995  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 996  * @phba: pointer to lpfc hba data structure.
 997  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 998  *
 999  * This is the callback function to the lpfc heart-beat mailbox command.
1000  * If configured, the lpfc driver issues the heart-beat mailbox command to
1001  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
1002  * heart-beat mailbox command is issued, the driver shall set up heart-beat
1003  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
1004  * heart-beat outstanding state. Once the mailbox command comes back and
1005  * no error conditions detected, the heart-beat mailbox command timer is
1006  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1007  * state is cleared for the next heart-beat. If the timer expired with the
1008  * heart-beat outstanding state set, the driver will put the HBA offline.
1009  **/
1010 static void
1011 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1012 {
1013         unsigned long drvr_flag;
1014
1015         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1016         phba->hb_outstanding = 0;
1017         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1018
1019         /* Check and reset heart-beat timer is necessary */
1020         mempool_free(pmboxq, phba->mbox_mem_pool);
1021         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1022                 !(phba->link_state == LPFC_HBA_ERROR) &&
1023                 !(phba->pport->load_flag & FC_UNLOADING))
1024                 mod_timer(&phba->hb_tmofunc,
1025                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1026         return;
1027 }
1028
1029 /**
1030  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1031  * @phba: pointer to lpfc hba data structure.
1032  *
1033  * This is the actual HBA-timer timeout handler to be invoked by the worker
1034  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1035  * handler performs any periodic operations needed for the device. If such
1036  * periodic event has already been attended to either in the interrupt handler
1037  * or by processing slow-ring or fast-ring events within the HBA-timer
1038  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1039  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1040  * is configured and there is no heart-beat mailbox command outstanding, a
1041  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1042  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1043  * to offline.
1044  **/
1045 void
1046 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1047 {
1048         struct lpfc_vport **vports;
1049         LPFC_MBOXQ_t *pmboxq;
1050         struct lpfc_dmabuf *buf_ptr;
1051         int retval, i;
1052         struct lpfc_sli *psli = &phba->sli;
1053         LIST_HEAD(completions);
1054
1055         vports = lpfc_create_vport_work_array(phba);
1056         if (vports != NULL)
1057                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1058                         lpfc_rcv_seq_check_edtov(vports[i]);
1059         lpfc_destroy_vport_work_array(phba, vports);
1060
1061         if ((phba->link_state == LPFC_HBA_ERROR) ||
1062                 (phba->pport->load_flag & FC_UNLOADING) ||
1063                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1064                 return;
1065
1066         spin_lock_irq(&phba->pport->work_port_lock);
1067
1068         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1069                 jiffies)) {
1070                 spin_unlock_irq(&phba->pport->work_port_lock);
1071                 if (!phba->hb_outstanding)
1072                         mod_timer(&phba->hb_tmofunc,
1073                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1074                 else
1075                         mod_timer(&phba->hb_tmofunc,
1076                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1077                 return;
1078         }
1079         spin_unlock_irq(&phba->pport->work_port_lock);
1080
1081         if (phba->elsbuf_cnt &&
1082                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1083                 spin_lock_irq(&phba->hbalock);
1084                 list_splice_init(&phba->elsbuf, &completions);
1085                 phba->elsbuf_cnt = 0;
1086                 phba->elsbuf_prev_cnt = 0;
1087                 spin_unlock_irq(&phba->hbalock);
1088
1089                 while (!list_empty(&completions)) {
1090                         list_remove_head(&completions, buf_ptr,
1091                                 struct lpfc_dmabuf, list);
1092                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1093                         kfree(buf_ptr);
1094                 }
1095         }
1096         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1097
1098         /* If there is no heart beat outstanding, issue a heartbeat command */
1099         if (phba->cfg_enable_hba_heartbeat) {
1100                 if (!phba->hb_outstanding) {
1101                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1102                                 (list_empty(&psli->mboxq))) {
1103                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1104                                                         GFP_KERNEL);
1105                                 if (!pmboxq) {
1106                                         mod_timer(&phba->hb_tmofunc,
1107                                                  jiffies +
1108                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1109                                         return;
1110                                 }
1111
1112                                 lpfc_heart_beat(phba, pmboxq);
1113                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1114                                 pmboxq->vport = phba->pport;
1115                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1116                                                 MBX_NOWAIT);
1117
1118                                 if (retval != MBX_BUSY &&
1119                                         retval != MBX_SUCCESS) {
1120                                         mempool_free(pmboxq,
1121                                                         phba->mbox_mem_pool);
1122                                         mod_timer(&phba->hb_tmofunc,
1123                                                 jiffies +
1124                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1125                                         return;
1126                                 }
1127                                 phba->skipped_hb = 0;
1128                                 phba->hb_outstanding = 1;
1129                         } else if (time_before_eq(phba->last_completion_time,
1130                                         phba->skipped_hb)) {
1131                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1132                                         "2857 Last completion time not "
1133                                         " updated in %d ms\n",
1134                                         jiffies_to_msecs(jiffies
1135                                                  - phba->last_completion_time));
1136                         } else
1137                                 phba->skipped_hb = jiffies;
1138
1139                         mod_timer(&phba->hb_tmofunc,
1140                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1141                         return;
1142                 } else {
1143                         /*
1144                         * If heart beat timeout called with hb_outstanding set
1145                         * we need to give the hb mailbox cmd a chance to
1146                         * complete or TMO.
1147                         */
1148                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1149                                         "0459 Adapter heartbeat still out"
1150                                         "standing:last compl time was %d ms.\n",
1151                                         jiffies_to_msecs(jiffies
1152                                                  - phba->last_completion_time));
1153                         mod_timer(&phba->hb_tmofunc,
1154                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1155                 }
1156         }
1157 }
1158
1159 /**
1160  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1161  * @phba: pointer to lpfc hba data structure.
1162  *
1163  * This routine is called to bring the HBA offline when HBA hardware error
1164  * other than Port Error 6 has been detected.
1165  **/
1166 static void
1167 lpfc_offline_eratt(struct lpfc_hba *phba)
1168 {
1169         struct lpfc_sli   *psli = &phba->sli;
1170
1171         spin_lock_irq(&phba->hbalock);
1172         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1173         spin_unlock_irq(&phba->hbalock);
1174         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1175
1176         lpfc_offline(phba);
1177         lpfc_reset_barrier(phba);
1178         spin_lock_irq(&phba->hbalock);
1179         lpfc_sli_brdreset(phba);
1180         spin_unlock_irq(&phba->hbalock);
1181         lpfc_hba_down_post(phba);
1182         lpfc_sli_brdready(phba, HS_MBRDY);
1183         lpfc_unblock_mgmt_io(phba);
1184         phba->link_state = LPFC_HBA_ERROR;
1185         return;
1186 }
1187
1188 /**
1189  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1190  * @phba: pointer to lpfc hba data structure.
1191  *
1192  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1193  * other than Port Error 6 has been detected.
1194  **/
1195 static void
1196 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1197 {
1198         lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1199         lpfc_offline(phba);
1200         lpfc_sli4_brdreset(phba);
1201         lpfc_hba_down_post(phba);
1202         lpfc_sli4_post_status_check(phba);
1203         lpfc_unblock_mgmt_io(phba);
1204         phba->link_state = LPFC_HBA_ERROR;
1205 }
1206
1207 /**
1208  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1209  * @phba: pointer to lpfc hba data structure.
1210  *
1211  * This routine is invoked to handle the deferred HBA hardware error
1212  * conditions. This type of error is indicated by HBA by setting ER1
1213  * and another ER bit in the host status register. The driver will
1214  * wait until the ER1 bit clears before handling the error condition.
1215  **/
1216 static void
1217 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1218 {
1219         uint32_t old_host_status = phba->work_hs;
1220         struct lpfc_sli_ring  *pring;
1221         struct lpfc_sli *psli = &phba->sli;
1222
1223         /* If the pci channel is offline, ignore possible errors,
1224          * since we cannot communicate with the pci card anyway.
1225          */
1226         if (pci_channel_offline(phba->pcidev)) {
1227                 spin_lock_irq(&phba->hbalock);
1228                 phba->hba_flag &= ~DEFER_ERATT;
1229                 spin_unlock_irq(&phba->hbalock);
1230                 return;
1231         }
1232
1233         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1234                 "0479 Deferred Adapter Hardware Error "
1235                 "Data: x%x x%x x%x\n",
1236                 phba->work_hs,
1237                 phba->work_status[0], phba->work_status[1]);
1238
1239         spin_lock_irq(&phba->hbalock);
1240         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1241         spin_unlock_irq(&phba->hbalock);
1242
1243
1244         /*
1245          * Firmware stops when it triggred erratt. That could cause the I/Os
1246          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1247          * SCSI layer retry it after re-establishing link.
1248          */
1249         pring = &psli->ring[psli->fcp_ring];
1250         lpfc_sli_abort_iocb_ring(phba, pring);
1251
1252         /*
1253          * There was a firmware error. Take the hba offline and then
1254          * attempt to restart it.
1255          */
1256         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
1257         lpfc_offline(phba);
1258
1259         /* Wait for the ER1 bit to clear.*/
1260         while (phba->work_hs & HS_FFER1) {
1261                 msleep(100);
1262                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1263                         phba->work_hs = UNPLUG_ERR ;
1264                         break;
1265                 }
1266                 /* If driver is unloading let the worker thread continue */
1267                 if (phba->pport->load_flag & FC_UNLOADING) {
1268                         phba->work_hs = 0;
1269                         break;
1270                 }
1271         }
1272
1273         /*
1274          * This is to ptrotect against a race condition in which
1275          * first write to the host attention register clear the
1276          * host status register.
1277          */
1278         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1279                 phba->work_hs = old_host_status & ~HS_FFER1;
1280
1281         spin_lock_irq(&phba->hbalock);
1282         phba->hba_flag &= ~DEFER_ERATT;
1283         spin_unlock_irq(&phba->hbalock);
1284         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1285         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1286 }
1287
1288 static void
1289 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1290 {
1291         struct lpfc_board_event_header board_event;
1292         struct Scsi_Host *shost;
1293
1294         board_event.event_type = FC_REG_BOARD_EVENT;
1295         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1296         shost = lpfc_shost_from_vport(phba->pport);
1297         fc_host_post_vendor_event(shost, fc_get_event_number(),
1298                                   sizeof(board_event),
1299                                   (char *) &board_event,
1300                                   LPFC_NL_VENDOR_ID);
1301 }
1302
1303 /**
1304  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1305  * @phba: pointer to lpfc hba data structure.
1306  *
1307  * This routine is invoked to handle the following HBA hardware error
1308  * conditions:
1309  * 1 - HBA error attention interrupt
1310  * 2 - DMA ring index out of range
1311  * 3 - Mailbox command came back as unknown
1312  **/
1313 static void
1314 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1315 {
1316         struct lpfc_vport *vport = phba->pport;
1317         struct lpfc_sli   *psli = &phba->sli;
1318         struct lpfc_sli_ring  *pring;
1319         uint32_t event_data;
1320         unsigned long temperature;
1321         struct temp_event temp_event_data;
1322         struct Scsi_Host  *shost;
1323
1324         /* If the pci channel is offline, ignore possible errors,
1325          * since we cannot communicate with the pci card anyway.
1326          */
1327         if (pci_channel_offline(phba->pcidev)) {
1328                 spin_lock_irq(&phba->hbalock);
1329                 phba->hba_flag &= ~DEFER_ERATT;
1330                 spin_unlock_irq(&phba->hbalock);
1331                 return;
1332         }
1333
1334         /* If resets are disabled then leave the HBA alone and return */
1335         if (!phba->cfg_enable_hba_reset)
1336                 return;
1337
1338         /* Send an internal error event to mgmt application */
1339         lpfc_board_errevt_to_mgmt(phba);
1340
1341         if (phba->hba_flag & DEFER_ERATT)
1342                 lpfc_handle_deferred_eratt(phba);
1343
1344         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1345                 if (phba->work_hs & HS_FFER6)
1346                         /* Re-establishing Link */
1347                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1348                                         "1301 Re-establishing Link "
1349                                         "Data: x%x x%x x%x\n",
1350                                         phba->work_hs, phba->work_status[0],
1351                                         phba->work_status[1]);
1352                 if (phba->work_hs & HS_FFER8)
1353                         /* Device Zeroization */
1354                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1355                                         "2861 Host Authentication device "
1356                                         "zeroization Data:x%x x%x x%x\n",
1357                                         phba->work_hs, phba->work_status[0],
1358                                         phba->work_status[1]);
1359
1360                 spin_lock_irq(&phba->hbalock);
1361                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1362                 spin_unlock_irq(&phba->hbalock);
1363
1364                 /*
1365                 * Firmware stops when it triggled erratt with HS_FFER6.
1366                 * That could cause the I/Os dropped by the firmware.
1367                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1368                 * retry it after re-establishing link.
1369                 */
1370                 pring = &psli->ring[psli->fcp_ring];
1371                 lpfc_sli_abort_iocb_ring(phba, pring);
1372
1373                 /*
1374                  * There was a firmware error.  Take the hba offline and then
1375                  * attempt to restart it.
1376                  */
1377                 lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT);
1378                 lpfc_offline(phba);
1379                 lpfc_sli_brdrestart(phba);
1380                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1381                         lpfc_unblock_mgmt_io(phba);
1382                         return;
1383                 }
1384                 lpfc_unblock_mgmt_io(phba);
1385         } else if (phba->work_hs & HS_CRIT_TEMP) {
1386                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1387                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1388                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1389                 temp_event_data.data = (uint32_t)temperature;
1390
1391                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1392                                 "0406 Adapter maximum temperature exceeded "
1393                                 "(%ld), taking this port offline "
1394                                 "Data: x%x x%x x%x\n",
1395                                 temperature, phba->work_hs,
1396                                 phba->work_status[0], phba->work_status[1]);
1397
1398                 shost = lpfc_shost_from_vport(phba->pport);
1399                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1400                                           sizeof(temp_event_data),
1401                                           (char *) &temp_event_data,
1402                                           SCSI_NL_VID_TYPE_PCI
1403                                           | PCI_VENDOR_ID_EMULEX);
1404
1405                 spin_lock_irq(&phba->hbalock);
1406                 phba->over_temp_state = HBA_OVER_TEMP;
1407                 spin_unlock_irq(&phba->hbalock);
1408                 lpfc_offline_eratt(phba);
1409
1410         } else {
1411                 /* The if clause above forces this code path when the status
1412                  * failure is a value other than FFER6. Do not call the offline
1413                  * twice. This is the adapter hardware error path.
1414                  */
1415                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1416                                 "0457 Adapter Hardware Error "
1417                                 "Data: x%x x%x x%x\n",
1418                                 phba->work_hs,
1419                                 phba->work_status[0], phba->work_status[1]);
1420
1421                 event_data = FC_REG_DUMP_EVENT;
1422                 shost = lpfc_shost_from_vport(vport);
1423                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1424                                 sizeof(event_data), (char *) &event_data,
1425                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1426
1427                 lpfc_offline_eratt(phba);
1428         }
1429         return;
1430 }
1431
1432 /**
1433  * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg
1434  * @phba: pointer to lpfc hba data structure.
1435  * @mbx_action: flag for mailbox shutdown action.
1436  *
1437  * This routine is invoked to perform an SLI4 port PCI function reset in
1438  * response to port status register polling attention. It waits for port
1439  * status register (ERR, RDY, RN) bits before proceeding with function reset.
1440  * During this process, interrupt vectors are freed and later requested
1441  * for handling possible port resource change.
1442  **/
1443 static int
1444 lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action)
1445 {
1446         int rc;
1447         uint32_t intr_mode;
1448
1449         /*
1450          * On error status condition, driver need to wait for port
1451          * ready before performing reset.
1452          */
1453         rc = lpfc_sli4_pdev_status_reg_wait(phba);
1454         if (!rc) {
1455                 /* need reset: attempt for port recovery */
1456                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1457                                 "2887 Reset Needed: Attempting Port "
1458                                 "Recovery...\n");
1459                 lpfc_offline_prep(phba, mbx_action);
1460                 lpfc_offline(phba);
1461                 /* release interrupt for possible resource change */
1462                 lpfc_sli4_disable_intr(phba);
1463                 lpfc_sli_brdrestart(phba);
1464                 /* request and enable interrupt */
1465                 intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
1466                 if (intr_mode == LPFC_INTR_ERROR) {
1467                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1468                                         "3175 Failed to enable interrupt\n");
1469                         return -EIO;
1470                 } else {
1471                         phba->intr_mode = intr_mode;
1472                 }
1473                 rc = lpfc_online(phba);
1474                 if (rc == 0)
1475                         lpfc_unblock_mgmt_io(phba);
1476         }
1477         return rc;
1478 }
1479
1480 /**
1481  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1482  * @phba: pointer to lpfc hba data structure.
1483  *
1484  * This routine is invoked to handle the SLI4 HBA hardware error attention
1485  * conditions.
1486  **/
1487 static void
1488 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1489 {
1490         struct lpfc_vport *vport = phba->pport;
1491         uint32_t event_data;
1492         struct Scsi_Host *shost;
1493         uint32_t if_type;
1494         struct lpfc_register portstat_reg = {0};
1495         uint32_t reg_err1, reg_err2;
1496         uint32_t uerrlo_reg, uemasklo_reg;
1497         uint32_t pci_rd_rc1, pci_rd_rc2;
1498         int rc;
1499
1500         /* If the pci channel is offline, ignore possible errors, since
1501          * we cannot communicate with the pci card anyway.
1502          */
1503         if (pci_channel_offline(phba->pcidev))
1504                 return;
1505         /* If resets are disabled then leave the HBA alone and return */
1506         if (!phba->cfg_enable_hba_reset)
1507                 return;
1508
1509         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1510         switch (if_type) {
1511         case LPFC_SLI_INTF_IF_TYPE_0:
1512                 pci_rd_rc1 = lpfc_readl(
1513                                 phba->sli4_hba.u.if_type0.UERRLOregaddr,
1514                                 &uerrlo_reg);
1515                 pci_rd_rc2 = lpfc_readl(
1516                                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
1517                                 &uemasklo_reg);
1518                 /* consider PCI bus read error as pci_channel_offline */
1519                 if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
1520                         return;
1521                 lpfc_sli4_offline_eratt(phba);
1522                 break;
1523         case LPFC_SLI_INTF_IF_TYPE_2:
1524                 pci_rd_rc1 = lpfc_readl(
1525                                 phba->sli4_hba.u.if_type2.STATUSregaddr,
1526                                 &portstat_reg.word0);
1527                 /* consider PCI bus read error as pci_channel_offline */
1528                 if (pci_rd_rc1 == -EIO) {
1529                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1530                                 "3151 PCI bus read access failure: x%x\n",
1531                                 readl(phba->sli4_hba.u.if_type2.STATUSregaddr));
1532                         return;
1533                 }
1534                 reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
1535                 reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
1536                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1537                         /* TODO: Register for Overtemp async events. */
1538                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1539                                 "2889 Port Overtemperature event, "
1540                                 "taking port offline\n");
1541                         spin_lock_irq(&phba->hbalock);
1542                         phba->over_temp_state = HBA_OVER_TEMP;
1543                         spin_unlock_irq(&phba->hbalock);
1544                         lpfc_sli4_offline_eratt(phba);
1545                         break;
1546                 }
1547                 if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1548                     reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
1549                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1550                                         "3143 Port Down: Firmware Restarted\n");
1551                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1552                          reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1553                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1554                                         "3144 Port Down: Debug Dump\n");
1555                 else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1556                          reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
1557                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1558                                         "3145 Port Down: Provisioning\n");
1559
1560                 /* Check port status register for function reset */
1561                 rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT);
1562                 if (rc == 0) {
1563                         /* don't report event on forced debug dump */
1564                         if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
1565                             reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
1566                                 return;
1567                         else
1568                                 break;
1569                 }
1570                 /* fall through for not able to recover */
1571                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1572                                 "3152 Unrecoverable error, bring the port "
1573                                 "offline\n");
1574                 lpfc_sli4_offline_eratt(phba);
1575                 break;
1576         case LPFC_SLI_INTF_IF_TYPE_1:
1577         default:
1578                 break;
1579         }
1580         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1581                         "3123 Report dump event to upper layer\n");
1582         /* Send an internal error event to mgmt application */
1583         lpfc_board_errevt_to_mgmt(phba);
1584
1585         event_data = FC_REG_DUMP_EVENT;
1586         shost = lpfc_shost_from_vport(vport);
1587         fc_host_post_vendor_event(shost, fc_get_event_number(),
1588                                   sizeof(event_data), (char *) &event_data,
1589                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1590 }
1591
1592 /**
1593  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1594  * @phba: pointer to lpfc HBA data structure.
1595  *
1596  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1597  * routine from the API jump table function pointer from the lpfc_hba struct.
1598  *
1599  * Return codes
1600  *   0 - success.
1601  *   Any other value - error.
1602  **/
1603 void
1604 lpfc_handle_eratt(struct lpfc_hba *phba)
1605 {
1606         (*phba->lpfc_handle_eratt)(phba);
1607 }
1608
1609 /**
1610  * lpfc_handle_latt - The HBA link event handler
1611  * @phba: pointer to lpfc hba data structure.
1612  *
1613  * This routine is invoked from the worker thread to handle a HBA host
1614  * attention link event.
1615  **/
1616 void
1617 lpfc_handle_latt(struct lpfc_hba *phba)
1618 {
1619         struct lpfc_vport *vport = phba->pport;
1620         struct lpfc_sli   *psli = &phba->sli;
1621         LPFC_MBOXQ_t *pmb;
1622         volatile uint32_t control;
1623         struct lpfc_dmabuf *mp;
1624         int rc = 0;
1625
1626         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1627         if (!pmb) {
1628                 rc = 1;
1629                 goto lpfc_handle_latt_err_exit;
1630         }
1631
1632         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1633         if (!mp) {
1634                 rc = 2;
1635                 goto lpfc_handle_latt_free_pmb;
1636         }
1637
1638         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1639         if (!mp->virt) {
1640                 rc = 3;
1641                 goto lpfc_handle_latt_free_mp;
1642         }
1643
1644         /* Cleanup any outstanding ELS commands */
1645         lpfc_els_flush_all_cmd(phba);
1646
1647         psli->slistat.link_event++;
1648         lpfc_read_topology(phba, pmb, mp);
1649         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1650         pmb->vport = vport;
1651         /* Block ELS IOCBs until we have processed this mbox command */
1652         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1653         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1654         if (rc == MBX_NOT_FINISHED) {
1655                 rc = 4;
1656                 goto lpfc_handle_latt_free_mbuf;
1657         }
1658
1659         /* Clear Link Attention in HA REG */
1660         spin_lock_irq(&phba->hbalock);
1661         writel(HA_LATT, phba->HAregaddr);
1662         readl(phba->HAregaddr); /* flush */
1663         spin_unlock_irq(&phba->hbalock);
1664
1665         return;
1666
1667 lpfc_handle_latt_free_mbuf:
1668         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1669         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1670 lpfc_handle_latt_free_mp:
1671         kfree(mp);
1672 lpfc_handle_latt_free_pmb:
1673         mempool_free(pmb, phba->mbox_mem_pool);
1674 lpfc_handle_latt_err_exit:
1675         /* Enable Link attention interrupts */
1676         spin_lock_irq(&phba->hbalock);
1677         psli->sli_flag |= LPFC_PROCESS_LA;
1678         control = readl(phba->HCregaddr);
1679         control |= HC_LAINT_ENA;
1680         writel(control, phba->HCregaddr);
1681         readl(phba->HCregaddr); /* flush */
1682
1683         /* Clear Link Attention in HA REG */
1684         writel(HA_LATT, phba->HAregaddr);
1685         readl(phba->HAregaddr); /* flush */
1686         spin_unlock_irq(&phba->hbalock);
1687         lpfc_linkdown(phba);
1688         phba->link_state = LPFC_HBA_ERROR;
1689
1690         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1691                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1692
1693         return;
1694 }
1695
1696 /**
1697  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1698  * @phba: pointer to lpfc hba data structure.
1699  * @vpd: pointer to the vital product data.
1700  * @len: length of the vital product data in bytes.
1701  *
1702  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1703  * an array of characters. In this routine, the ModelName, ProgramType, and
1704  * ModelDesc, etc. fields of the phba data structure will be populated.
1705  *
1706  * Return codes
1707  *   0 - pointer to the VPD passed in is NULL
1708  *   1 - success
1709  **/
1710 int
1711 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1712 {
1713         uint8_t lenlo, lenhi;
1714         int Length;
1715         int i, j;
1716         int finished = 0;
1717         int index = 0;
1718
1719         if (!vpd)
1720                 return 0;
1721
1722         /* Vital Product */
1723         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1724                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1725                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1726                         (uint32_t) vpd[3]);
1727         while (!finished && (index < (len - 4))) {
1728                 switch (vpd[index]) {
1729                 case 0x82:
1730                 case 0x91:
1731                         index += 1;
1732                         lenlo = vpd[index];
1733                         index += 1;
1734                         lenhi = vpd[index];
1735                         index += 1;
1736                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1737                         index += i;
1738                         break;
1739                 case 0x90:
1740                         index += 1;
1741                         lenlo = vpd[index];
1742                         index += 1;
1743                         lenhi = vpd[index];
1744                         index += 1;
1745                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1746                         if (Length > len - index)
1747                                 Length = len - index;
1748                         while (Length > 0) {
1749                         /* Look for Serial Number */
1750                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1751                                 index += 2;
1752                                 i = vpd[index];
1753                                 index += 1;
1754                                 j = 0;
1755                                 Length -= (3+i);
1756                                 while(i--) {
1757                                         phba->SerialNumber[j++] = vpd[index++];
1758                                         if (j == 31)
1759                                                 break;
1760                                 }
1761                                 phba->SerialNumber[j] = 0;
1762                                 continue;
1763                         }
1764                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1765                                 phba->vpd_flag |= VPD_MODEL_DESC;
1766                                 index += 2;
1767                                 i = vpd[index];
1768                                 index += 1;
1769                                 j = 0;
1770                                 Length -= (3+i);
1771                                 while(i--) {
1772                                         phba->ModelDesc[j++] = vpd[index++];
1773                                         if (j == 255)
1774                                                 break;
1775                                 }
1776                                 phba->ModelDesc[j] = 0;
1777                                 continue;
1778                         }
1779                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1780                                 phba->vpd_flag |= VPD_MODEL_NAME;
1781                                 index += 2;
1782                                 i = vpd[index];
1783                                 index += 1;
1784                                 j = 0;
1785                                 Length -= (3+i);
1786                                 while(i--) {
1787                                         phba->ModelName[j++] = vpd[index++];
1788                                         if (j == 79)
1789                                                 break;
1790                                 }
1791                                 phba->ModelName[j] = 0;
1792                                 continue;
1793                         }
1794                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1795                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1796                                 index += 2;
1797                                 i = vpd[index];
1798                                 index += 1;
1799                                 j = 0;
1800                                 Length -= (3+i);
1801                                 while(i--) {
1802                                         phba->ProgramType[j++] = vpd[index++];
1803                                         if (j == 255)
1804                                                 break;
1805                                 }
1806                                 phba->ProgramType[j] = 0;
1807                                 continue;
1808                         }
1809                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1810                                 phba->vpd_flag |= VPD_PORT;
1811                                 index += 2;
1812                                 i = vpd[index];
1813                                 index += 1;
1814                                 j = 0;
1815                                 Length -= (3+i);
1816                                 while(i--) {
1817                                         if ((phba->sli_rev == LPFC_SLI_REV4) &&
1818                                             (phba->sli4_hba.pport_name_sta ==
1819                                              LPFC_SLI4_PPNAME_GET)) {
1820                                                 j++;
1821                                                 index++;
1822                                         } else
1823                                                 phba->Port[j++] = vpd[index++];
1824                                         if (j == 19)
1825                                                 break;
1826                                 }
1827                                 if ((phba->sli_rev != LPFC_SLI_REV4) ||
1828                                     (phba->sli4_hba.pport_name_sta ==
1829                                      LPFC_SLI4_PPNAME_NON))
1830                                         phba->Port[j] = 0;
1831                                 continue;
1832                         }
1833                         else {
1834                                 index += 2;
1835                                 i = vpd[index];
1836                                 index += 1;
1837                                 index += i;
1838                                 Length -= (3 + i);
1839                         }
1840                 }
1841                 finished = 0;
1842                 break;
1843                 case 0x78:
1844                         finished = 1;
1845                         break;
1846                 default:
1847                         index ++;
1848                         break;
1849                 }
1850         }
1851
1852         return(1);
1853 }
1854
1855 /**
1856  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1857  * @phba: pointer to lpfc hba data structure.
1858  * @mdp: pointer to the data structure to hold the derived model name.
1859  * @descp: pointer to the data structure to hold the derived description.
1860  *
1861  * This routine retrieves HBA's description based on its registered PCI device
1862  * ID. The @descp passed into this function points to an array of 256 chars. It
1863  * shall be returned with the model name, maximum speed, and the host bus type.
1864  * The @mdp passed into this function points to an array of 80 chars. When the
1865  * function returns, the @mdp will be filled with the model name.
1866  **/
1867 static void
1868 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1869 {
1870         lpfc_vpd_t *vp;
1871         uint16_t dev_id = phba->pcidev->device;
1872         int max_speed;
1873         int GE = 0;
1874         int oneConnect = 0; /* default is not a oneConnect */
1875         struct {
1876                 char *name;
1877                 char *bus;
1878                 char *function;
1879         } m = {"<Unknown>", "", ""};
1880
1881         if (mdp && mdp[0] != '\0'
1882                 && descp && descp[0] != '\0')
1883                 return;
1884
1885         if (phba->lmt & LMT_16Gb)
1886                 max_speed = 16;
1887         else if (phba->lmt & LMT_10Gb)
1888                 max_speed = 10;
1889         else if (phba->lmt & LMT_8Gb)
1890                 max_speed = 8;
1891         else if (phba->lmt & LMT_4Gb)
1892                 max_speed = 4;
1893         else if (phba->lmt & LMT_2Gb)
1894                 max_speed = 2;
1895         else
1896                 max_speed = 1;
1897
1898         vp = &phba->vpd;
1899
1900         switch (dev_id) {
1901         case PCI_DEVICE_ID_FIREFLY:
1902                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1903                 break;
1904         case PCI_DEVICE_ID_SUPERFLY:
1905                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1906                         m = (typeof(m)){"LP7000", "PCI",
1907                                         "Fibre Channel Adapter"};
1908                 else
1909                         m = (typeof(m)){"LP7000E", "PCI",
1910                                         "Fibre Channel Adapter"};
1911                 break;
1912         case PCI_DEVICE_ID_DRAGONFLY:
1913                 m = (typeof(m)){"LP8000", "PCI",
1914                                 "Fibre Channel Adapter"};
1915                 break;
1916         case PCI_DEVICE_ID_CENTAUR:
1917                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1918                         m = (typeof(m)){"LP9002", "PCI",
1919                                         "Fibre Channel Adapter"};
1920                 else
1921                         m = (typeof(m)){"LP9000", "PCI",
1922                                         "Fibre Channel Adapter"};
1923                 break;
1924         case PCI_DEVICE_ID_RFLY:
1925                 m = (typeof(m)){"LP952", "PCI",
1926                                 "Fibre Channel Adapter"};
1927                 break;
1928         case PCI_DEVICE_ID_PEGASUS:
1929                 m = (typeof(m)){"LP9802", "PCI-X",
1930                                 "Fibre Channel Adapter"};
1931                 break;
1932         case PCI_DEVICE_ID_THOR:
1933                 m = (typeof(m)){"LP10000", "PCI-X",
1934                                 "Fibre Channel Adapter"};
1935                 break;
1936         case PCI_DEVICE_ID_VIPER:
1937                 m = (typeof(m)){"LPX1000",  "PCI-X",
1938                                 "Fibre Channel Adapter"};
1939                 break;
1940         case PCI_DEVICE_ID_PFLY:
1941                 m = (typeof(m)){"LP982", "PCI-X",
1942                                 "Fibre Channel Adapter"};
1943                 break;
1944         case PCI_DEVICE_ID_TFLY:
1945                 m = (typeof(m)){"LP1050", "PCI-X",
1946                                 "Fibre Channel Adapter"};
1947                 break;
1948         case PCI_DEVICE_ID_HELIOS:
1949                 m = (typeof(m)){"LP11000", "PCI-X2",
1950                                 "Fibre Channel Adapter"};
1951                 break;
1952         case PCI_DEVICE_ID_HELIOS_SCSP:
1953                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1954                                 "Fibre Channel Adapter"};
1955                 break;
1956         case PCI_DEVICE_ID_HELIOS_DCSP:
1957                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1958                                 "Fibre Channel Adapter"};
1959                 break;
1960         case PCI_DEVICE_ID_NEPTUNE:
1961                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1962                 break;
1963         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1964                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1965                 break;
1966         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1967                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1968                 break;
1969         case PCI_DEVICE_ID_BMID:
1970                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1971                 break;
1972         case PCI_DEVICE_ID_BSMB:
1973                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1974                 break;
1975         case PCI_DEVICE_ID_ZEPHYR:
1976                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1977                 break;
1978         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1979                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1980                 break;
1981         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1982                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1983                 GE = 1;
1984                 break;
1985         case PCI_DEVICE_ID_ZMID:
1986                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1987                 break;
1988         case PCI_DEVICE_ID_ZSMB:
1989                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1990                 break;
1991         case PCI_DEVICE_ID_LP101:
1992                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1993                 break;
1994         case PCI_DEVICE_ID_LP10000S:
1995                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1996                 break;
1997         case PCI_DEVICE_ID_LP11000S:
1998                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1999                 break;
2000         case PCI_DEVICE_ID_LPE11000S:
2001                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
2002                 break;
2003         case PCI_DEVICE_ID_SAT:
2004                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
2005                 break;
2006         case PCI_DEVICE_ID_SAT_MID:
2007                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
2008                 break;
2009         case PCI_DEVICE_ID_SAT_SMB:
2010                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
2011                 break;
2012         case PCI_DEVICE_ID_SAT_DCSP:
2013                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
2014                 break;
2015         case PCI_DEVICE_ID_SAT_SCSP:
2016                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
2017                 break;
2018         case PCI_DEVICE_ID_SAT_S:
2019                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
2020                 break;
2021         case PCI_DEVICE_ID_HORNET:
2022                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
2023                 GE = 1;
2024                 break;
2025         case PCI_DEVICE_ID_PROTEUS_VF:
2026                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2027                                 "Fibre Channel Adapter"};
2028                 break;
2029         case PCI_DEVICE_ID_PROTEUS_PF:
2030                 m = (typeof(m)){"LPev12000", "PCIe IOV",
2031                                 "Fibre Channel Adapter"};
2032                 break;
2033         case PCI_DEVICE_ID_PROTEUS_S:
2034                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
2035                                 "Fibre Channel Adapter"};
2036                 break;
2037         case PCI_DEVICE_ID_TIGERSHARK:
2038                 oneConnect = 1;
2039                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
2040                 break;
2041         case PCI_DEVICE_ID_TOMCAT:
2042                 oneConnect = 1;
2043                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
2044                 break;
2045         case PCI_DEVICE_ID_FALCON:
2046                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
2047                                 "EmulexSecure Fibre"};
2048                 break;
2049         case PCI_DEVICE_ID_BALIUS:
2050                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
2051                                 "Fibre Channel Adapter"};
2052                 break;
2053         case PCI_DEVICE_ID_LANCER_FC:
2054         case PCI_DEVICE_ID_LANCER_FC_VF:
2055                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
2056                 break;
2057         case PCI_DEVICE_ID_LANCER_FCOE:
2058         case PCI_DEVICE_ID_LANCER_FCOE_VF:
2059                 oneConnect = 1;
2060                 m = (typeof(m)){"OCe15100", "PCIe", "FCoE"};
2061                 break;
2062         default:
2063                 m = (typeof(m)){"Unknown", "", ""};
2064                 break;
2065         }
2066
2067         if (mdp && mdp[0] == '\0')
2068                 snprintf(mdp, 79,"%s", m.name);
2069         /*
2070          * oneConnect hba requires special processing, they are all initiators
2071          * and we put the port number on the end
2072          */
2073         if (descp && descp[0] == '\0') {
2074                 if (oneConnect)
2075                         snprintf(descp, 255,
2076                                 "Emulex OneConnect %s, %s Initiator, Port %s",
2077                                 m.name, m.function,
2078                                 phba->Port);
2079                 else
2080                         snprintf(descp, 255,
2081                                 "Emulex %s %d%s %s %s",
2082                                 m.name, max_speed, (GE) ? "GE" : "Gb",
2083                                 m.bus, m.function);
2084         }
2085 }
2086
2087 /**
2088  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
2089  * @phba: pointer to lpfc hba data structure.
2090  * @pring: pointer to a IOCB ring.
2091  * @cnt: the number of IOCBs to be posted to the IOCB ring.
2092  *
2093  * This routine posts a given number of IOCBs with the associated DMA buffer
2094  * descriptors specified by the cnt argument to the given IOCB ring.
2095  *
2096  * Return codes
2097  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2098  **/
2099 int
2100 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2101 {
2102         IOCB_t *icmd;
2103         struct lpfc_iocbq *iocb;
2104         struct lpfc_dmabuf *mp1, *mp2;
2105
2106         cnt += pring->missbufcnt;
2107
2108         /* While there are buffers to post */
2109         while (cnt > 0) {
2110                 /* Allocate buffer for  command iocb */
2111                 iocb = lpfc_sli_get_iocbq(phba);
2112                 if (iocb == NULL) {
2113                         pring->missbufcnt = cnt;
2114                         return cnt;
2115                 }
2116                 icmd = &iocb->iocb;
2117
2118                 /* 2 buffers can be posted per command */
2119                 /* Allocate buffer to post */
2120                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2121                 if (mp1)
2122                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2123                 if (!mp1 || !mp1->virt) {
2124                         kfree(mp1);
2125                         lpfc_sli_release_iocbq(phba, iocb);
2126                         pring->missbufcnt = cnt;
2127                         return cnt;
2128                 }
2129
2130                 INIT_LIST_HEAD(&mp1->list);
2131                 /* Allocate buffer to post */
2132                 if (cnt > 1) {
2133                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2134                         if (mp2)
2135                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2136                                                             &mp2->phys);
2137                         if (!mp2 || !mp2->virt) {
2138                                 kfree(mp2);
2139                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2140                                 kfree(mp1);
2141                                 lpfc_sli_release_iocbq(phba, iocb);
2142                                 pring->missbufcnt = cnt;
2143                                 return cnt;
2144                         }
2145
2146                         INIT_LIST_HEAD(&mp2->list);
2147                 } else {
2148                         mp2 = NULL;
2149                 }
2150
2151                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2152                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2153                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2154                 icmd->ulpBdeCount = 1;
2155                 cnt--;
2156                 if (mp2) {
2157                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2158                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2159                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2160                         cnt--;
2161                         icmd->ulpBdeCount = 2;
2162                 }
2163
2164                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2165                 icmd->ulpLe = 1;
2166
2167                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2168                     IOCB_ERROR) {
2169                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2170                         kfree(mp1);
2171                         cnt++;
2172                         if (mp2) {
2173                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2174                                 kfree(mp2);
2175                                 cnt++;
2176                         }
2177                         lpfc_sli_release_iocbq(phba, iocb);
2178                         pring->missbufcnt = cnt;
2179                         return cnt;
2180                 }
2181                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2182                 if (mp2)
2183                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2184         }
2185         pring->missbufcnt = 0;
2186         return 0;
2187 }
2188
2189 /**
2190  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2191  * @phba: pointer to lpfc hba data structure.
2192  *
2193  * This routine posts initial receive IOCB buffers to the ELS ring. The
2194  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2195  * set to 64 IOCBs.
2196  *
2197  * Return codes
2198  *   0 - success (currently always success)
2199  **/
2200 static int
2201 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2202 {
2203         struct lpfc_sli *psli = &phba->sli;
2204
2205         /* Ring 0, ELS / CT buffers */
2206         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2207         /* Ring 2 - FCP no buffers needed */
2208
2209         return 0;
2210 }
2211
2212 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2213
2214 /**
2215  * lpfc_sha_init - Set up initial array of hash table entries
2216  * @HashResultPointer: pointer to an array as hash table.
2217  *
2218  * This routine sets up the initial values to the array of hash table entries
2219  * for the LC HBAs.
2220  **/
2221 static void
2222 lpfc_sha_init(uint32_t * HashResultPointer)
2223 {
2224         HashResultPointer[0] = 0x67452301;
2225         HashResultPointer[1] = 0xEFCDAB89;
2226         HashResultPointer[2] = 0x98BADCFE;
2227         HashResultPointer[3] = 0x10325476;
2228         HashResultPointer[4] = 0xC3D2E1F0;
2229 }
2230
2231 /**
2232  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2233  * @HashResultPointer: pointer to an initial/result hash table.
2234  * @HashWorkingPointer: pointer to an working hash table.
2235  *
2236  * This routine iterates an initial hash table pointed by @HashResultPointer
2237  * with the values from the working hash table pointeed by @HashWorkingPointer.
2238  * The results are putting back to the initial hash table, returned through
2239  * the @HashResultPointer as the result hash table.
2240  **/
2241 static void
2242 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2243 {
2244         int t;
2245         uint32_t TEMP;
2246         uint32_t A, B, C, D, E;
2247         t = 16;
2248         do {
2249                 HashWorkingPointer[t] =
2250                     S(1,
2251                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2252                                                                      8] ^
2253                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2254         } while (++t <= 79);
2255         t = 0;
2256         A = HashResultPointer[0];
2257         B = HashResultPointer[1];
2258         C = HashResultPointer[2];
2259         D = HashResultPointer[3];
2260         E = HashResultPointer[4];
2261
2262         do {
2263                 if (t < 20) {
2264                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2265                 } else if (t < 40) {
2266                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2267                 } else if (t < 60) {
2268                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2269                 } else {
2270                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2271                 }
2272                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2273                 E = D;
2274                 D = C;
2275                 C = S(30, B);
2276                 B = A;
2277                 A = TEMP;
2278         } while (++t <= 79);
2279
2280         HashResultPointer[0] += A;
2281         HashResultPointer[1] += B;
2282         HashResultPointer[2] += C;
2283         HashResultPointer[3] += D;
2284         HashResultPointer[4] += E;
2285
2286 }
2287
2288 /**
2289  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2290  * @RandomChallenge: pointer to the entry of host challenge random number array.
2291  * @HashWorking: pointer to the entry of the working hash array.
2292  *
2293  * This routine calculates the working hash array referred by @HashWorking
2294  * from the challenge random numbers associated with the host, referred by
2295  * @RandomChallenge. The result is put into the entry of the working hash
2296  * array and returned by reference through @HashWorking.
2297  **/
2298 static void
2299 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2300 {
2301         *HashWorking = (*RandomChallenge ^ *HashWorking);
2302 }
2303
2304 /**
2305  * lpfc_hba_init - Perform special handling for LC HBA initialization
2306  * @phba: pointer to lpfc hba data structure.
2307  * @hbainit: pointer to an array of unsigned 32-bit integers.
2308  *
2309  * This routine performs the special handling for LC HBA initialization.
2310  **/
2311 void
2312 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2313 {
2314         int t;
2315         uint32_t *HashWorking;
2316         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2317
2318         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2319         if (!HashWorking)
2320                 return;
2321
2322         HashWorking[0] = HashWorking[78] = *pwwnn++;
2323         HashWorking[1] = HashWorking[79] = *pwwnn;
2324
2325         for (t = 0; t < 7; t++)
2326                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2327
2328         lpfc_sha_init(hbainit);
2329         lpfc_sha_iterate(hbainit, HashWorking);
2330         kfree(HashWorking);
2331 }
2332
2333 /**
2334  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2335  * @vport: pointer to a virtual N_Port data structure.
2336  *
2337  * This routine performs the necessary cleanups before deleting the @vport.
2338  * It invokes the discovery state machine to perform necessary state
2339  * transitions and to release the ndlps associated with the @vport. Note,
2340  * the physical port is treated as @vport 0.
2341  **/
2342 void
2343 lpfc_cleanup(struct lpfc_vport *vport)
2344 {
2345         struct lpfc_hba   *phba = vport->phba;
2346         struct lpfc_nodelist *ndlp, *next_ndlp;
2347         int i = 0;
2348
2349         if (phba->link_state > LPFC_LINK_DOWN)
2350                 lpfc_port_link_failure(vport);
2351
2352         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2353                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2354                         ndlp = lpfc_enable_node(vport, ndlp,
2355                                                 NLP_STE_UNUSED_NODE);
2356                         if (!ndlp)
2357                                 continue;
2358                         spin_lock_irq(&phba->ndlp_lock);
2359                         NLP_SET_FREE_REQ(ndlp);
2360                         spin_unlock_irq(&phba->ndlp_lock);
2361                         /* Trigger the release of the ndlp memory */
2362                         lpfc_nlp_put(ndlp);
2363                         continue;
2364                 }
2365                 spin_lock_irq(&phba->ndlp_lock);
2366                 if (NLP_CHK_FREE_REQ(ndlp)) {
2367                         /* The ndlp should not be in memory free mode already */
2368                         spin_unlock_irq(&phba->ndlp_lock);
2369                         continue;
2370                 } else
2371                         /* Indicate request for freeing ndlp memory */
2372                         NLP_SET_FREE_REQ(ndlp);
2373                 spin_unlock_irq(&phba->ndlp_lock);
2374
2375                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2376                     ndlp->nlp_DID == Fabric_DID) {
2377                         /* Just free up ndlp with Fabric_DID for vports */
2378                         lpfc_nlp_put(ndlp);
2379                         continue;
2380                 }
2381
2382                 /* take care of nodes in unused state before the state
2383                  * machine taking action.
2384                  */
2385                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) {
2386                         lpfc_nlp_put(ndlp);
2387                         continue;
2388                 }
2389
2390                 if (ndlp->nlp_type & NLP_FABRIC)
2391                         lpfc_disc_state_machine(vport, ndlp, NULL,
2392                                         NLP_EVT_DEVICE_RECOVERY);
2393
2394                 lpfc_disc_state_machine(vport, ndlp, NULL,
2395                                              NLP_EVT_DEVICE_RM);
2396         }
2397
2398         /* At this point, ALL ndlp's should be gone
2399          * because of the previous NLP_EVT_DEVICE_RM.
2400          * Lets wait for this to happen, if needed.
2401          */
2402         while (!list_empty(&vport->fc_nodes)) {
2403                 if (i++ > 3000) {
2404                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2405                                 "0233 Nodelist not empty\n");
2406                         list_for_each_entry_safe(ndlp, next_ndlp,
2407                                                 &vport->fc_nodes, nlp_listp) {
2408                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2409                                                 LOG_NODE,
2410                                                 "0282 did:x%x ndlp:x%p "
2411                                                 "usgmap:x%x refcnt:%d\n",
2412                                                 ndlp->nlp_DID, (void *)ndlp,
2413                                                 ndlp->nlp_usg_map,
2414                                                 atomic_read(
2415                                                         &ndlp->kref.refcount));
2416                         }
2417                         break;
2418                 }
2419
2420                 /* Wait for any activity on ndlps to settle */
2421                 msleep(10);
2422         }
2423         lpfc_cleanup_vports_rrqs(vport, NULL);
2424 }
2425
2426 /**
2427  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2428  * @vport: pointer to a virtual N_Port data structure.
2429  *
2430  * This routine stops all the timers associated with a @vport. This function
2431  * is invoked before disabling or deleting a @vport. Note that the physical
2432  * port is treated as @vport 0.
2433  **/
2434 void
2435 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2436 {
2437         del_timer_sync(&vport->els_tmofunc);
2438         del_timer_sync(&vport->fc_fdmitmo);
2439         del_timer_sync(&vport->delayed_disc_tmo);
2440         lpfc_can_disctmo(vport);
2441         return;
2442 }
2443
2444 /**
2445  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2446  * @phba: pointer to lpfc hba data structure.
2447  *
2448  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2449  * caller of this routine should already hold the host lock.
2450  **/
2451 void
2452 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2453 {
2454         /* Clear pending FCF rediscovery wait flag */
2455         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2456
2457         /* Now, try to stop the timer */
2458         del_timer(&phba->fcf.redisc_wait);
2459 }
2460
2461 /**
2462  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2463  * @phba: pointer to lpfc hba data structure.
2464  *
2465  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2466  * checks whether the FCF rediscovery wait timer is pending with the host
2467  * lock held before proceeding with disabling the timer and clearing the
2468  * wait timer pendig flag.
2469  **/
2470 void
2471 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2472 {
2473         spin_lock_irq(&phba->hbalock);
2474         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2475                 /* FCF rediscovery timer already fired or stopped */
2476                 spin_unlock_irq(&phba->hbalock);
2477                 return;
2478         }
2479         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2480         /* Clear failover in progress flags */
2481         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2482         spin_unlock_irq(&phba->hbalock);
2483 }
2484
2485 /**
2486  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2487  * @phba: pointer to lpfc hba data structure.
2488  *
2489  * This routine stops all the timers associated with a HBA. This function is
2490  * invoked before either putting a HBA offline or unloading the driver.
2491  **/
2492 void
2493 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2494 {
2495         lpfc_stop_vport_timers(phba->pport);
2496         del_timer_sync(&phba->sli.mbox_tmo);
2497         del_timer_sync(&phba->fabric_block_timer);
2498         del_timer_sync(&phba->eratt_poll);
2499         del_timer_sync(&phba->hb_tmofunc);
2500         if (phba->sli_rev == LPFC_SLI_REV4) {
2501                 del_timer_sync(&phba->rrq_tmr);
2502                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2503         }
2504         phba->hb_outstanding = 0;
2505
2506         switch (phba->pci_dev_grp) {
2507         case LPFC_PCI_DEV_LP:
2508                 /* Stop any LightPulse device specific driver timers */
2509                 del_timer_sync(&phba->fcp_poll_timer);
2510                 break;
2511         case LPFC_PCI_DEV_OC:
2512                 /* Stop any OneConnect device sepcific driver timers */
2513                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2514                 break;
2515         default:
2516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2517                                 "0297 Invalid device group (x%x)\n",
2518                                 phba->pci_dev_grp);
2519                 break;
2520         }
2521         return;
2522 }
2523
2524 /**
2525  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2526  * @phba: pointer to lpfc hba data structure.
2527  *
2528  * This routine marks a HBA's management interface as blocked. Once the HBA's
2529  * management interface is marked as blocked, all the user space access to
2530  * the HBA, whether they are from sysfs interface or libdfc interface will
2531  * all be blocked. The HBA is set to block the management interface when the
2532  * driver prepares the HBA interface for online or offline.
2533  **/
2534 static void
2535 lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action)
2536 {
2537         unsigned long iflag;
2538         uint8_t actcmd = MBX_HEARTBEAT;
2539         unsigned long timeout;
2540
2541         spin_lock_irqsave(&phba->hbalock, iflag);
2542         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2543         spin_unlock_irqrestore(&phba->hbalock, iflag);
2544         if (mbx_action == LPFC_MBX_NO_WAIT)
2545                 return;
2546         timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
2547         spin_lock_irqsave(&phba->hbalock, iflag);
2548         if (phba->sli.mbox_active) {
2549                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2550                 /* Determine how long we might wait for the active mailbox
2551                  * command to be gracefully completed by firmware.
2552                  */
2553                 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
2554                                 phba->sli.mbox_active) * 1000) + jiffies;
2555         }
2556         spin_unlock_irqrestore(&phba->hbalock, iflag);
2557
2558         /* Wait for the outstnading mailbox command to complete */
2559         while (phba->sli.mbox_active) {
2560                 /* Check active mailbox complete status every 2ms */
2561                 msleep(2);
2562                 if (time_after(jiffies, timeout)) {
2563                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2564                                 "2813 Mgmt IO is Blocked %x "
2565                                 "- mbox cmd %x still active\n",
2566                                 phba->sli.sli_flag, actcmd);
2567                         break;
2568                 }
2569         }
2570 }
2571
2572 /**
2573  * lpfc_sli4_node_prep - Assign RPIs for active nodes.
2574  * @phba: pointer to lpfc hba data structure.
2575  *
2576  * Allocate RPIs for all active remote nodes. This is needed whenever
2577  * an SLI4 adapter is reset and the driver is not unloading. Its purpose
2578  * is to fixup the temporary rpi assignments.
2579  **/
2580 void
2581 lpfc_sli4_node_prep(struct lpfc_hba *phba)
2582 {
2583         struct lpfc_nodelist  *ndlp, *next_ndlp;
2584         struct lpfc_vport **vports;
2585         int i;
2586
2587         if (phba->sli_rev != LPFC_SLI_REV4)
2588                 return;
2589
2590         vports = lpfc_create_vport_work_array(phba);
2591         if (vports != NULL) {
2592                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2593                         if (vports[i]->load_flag & FC_UNLOADING)
2594                                 continue;
2595
2596                         list_for_each_entry_safe(ndlp, next_ndlp,
2597                                                  &vports[i]->fc_nodes,
2598                                                  nlp_listp) {
2599                                 if (NLP_CHK_NODE_ACT(ndlp))
2600                                         ndlp->nlp_rpi =
2601                                                 lpfc_sli4_alloc_rpi(phba);
2602                         }
2603                 }
2604         }
2605         lpfc_destroy_vport_work_array(phba, vports);
2606 }
2607
2608 /**
2609  * lpfc_online - Initialize and bring a HBA online
2610  * @phba: pointer to lpfc hba data structure.
2611  *
2612  * This routine initializes the HBA and brings a HBA online. During this
2613  * process, the management interface is blocked to prevent user space access
2614  * to the HBA interfering with the driver initialization.
2615  *
2616  * Return codes
2617  *   0 - successful
2618  *   1 - failed
2619  **/
2620 int
2621 lpfc_online(struct lpfc_hba *phba)
2622 {
2623         struct lpfc_vport *vport;
2624         struct lpfc_vport **vports;
2625         int i;
2626
2627         if (!phba)
2628                 return 0;
2629         vport = phba->pport;
2630
2631         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2632                 return 0;
2633
2634         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2635                         "0458 Bring Adapter online\n");
2636
2637         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
2638
2639         if (!lpfc_sli_queue_setup(phba)) {
2640                 lpfc_unblock_mgmt_io(phba);
2641                 return 1;
2642         }
2643
2644         if (phba->sli_rev == LPFC_SLI_REV4) {
2645                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2646                         lpfc_unblock_mgmt_io(phba);
2647                         return 1;
2648                 }
2649         } else {
2650                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2651                         lpfc_unblock_mgmt_io(phba);
2652                         return 1;
2653                 }
2654         }
2655
2656         vports = lpfc_create_vport_work_array(phba);
2657         if (vports != NULL)
2658                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2659                         struct Scsi_Host *shost;
2660                         shost = lpfc_shost_from_vport(vports[i]);
2661                         spin_lock_irq(shost->host_lock);
2662                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2663                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2664                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2665                         if (phba->sli_rev == LPFC_SLI_REV4)
2666                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2667                         spin_unlock_irq(shost->host_lock);
2668                 }
2669                 lpfc_destroy_vport_work_array(phba, vports);
2670
2671         lpfc_unblock_mgmt_io(phba);
2672         return 0;
2673 }
2674
2675 /**
2676  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2677  * @phba: pointer to lpfc hba data structure.
2678  *
2679  * This routine marks a HBA's management interface as not blocked. Once the
2680  * HBA's management interface is marked as not blocked, all the user space
2681  * access to the HBA, whether they are from sysfs interface or libdfc
2682  * interface will be allowed. The HBA is set to block the management interface
2683  * when the driver prepares the HBA interface for online or offline and then
2684  * set to unblock the management interface afterwards.
2685  **/
2686 void
2687 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2688 {
2689         unsigned long iflag;
2690
2691         spin_lock_irqsave(&phba->hbalock, iflag);
2692         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2693         spin_unlock_irqrestore(&phba->hbalock, iflag);
2694 }
2695
2696 /**
2697  * lpfc_offline_prep - Prepare a HBA to be brought offline
2698  * @phba: pointer to lpfc hba data structure.
2699  *
2700  * This routine is invoked to prepare a HBA to be brought offline. It performs
2701  * unregistration login to all the nodes on all vports and flushes the mailbox
2702  * queue to make it ready to be brought offline.
2703  **/
2704 void
2705 lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action)
2706 {
2707         struct lpfc_vport *vport = phba->pport;
2708         struct lpfc_nodelist  *ndlp, *next_ndlp;
2709         struct lpfc_vport **vports;
2710         struct Scsi_Host *shost;
2711         int i;
2712
2713         if (vport->fc_flag & FC_OFFLINE_MODE)
2714                 return;
2715
2716         lpfc_block_mgmt_io(phba, mbx_action);
2717
2718         lpfc_linkdown(phba);
2719
2720         /* Issue an unreg_login to all nodes on all vports */
2721         vports = lpfc_create_vport_work_array(phba);
2722         if (vports != NULL) {
2723                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2724                         if (vports[i]->load_flag & FC_UNLOADING)
2725                                 continue;
2726                         shost = lpfc_shost_from_vport(vports[i]);
2727                         spin_lock_irq(shost->host_lock);
2728                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2729                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2730                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2731                         spin_unlock_irq(shost->host_lock);
2732
2733                         shost = lpfc_shost_from_vport(vports[i]);
2734                         list_for_each_entry_safe(ndlp, next_ndlp,
2735                                                  &vports[i]->fc_nodes,
2736                                                  nlp_listp) {
2737                                 if (!NLP_CHK_NODE_ACT(ndlp))
2738                                         continue;
2739                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2740                                         continue;
2741                                 if (ndlp->nlp_type & NLP_FABRIC) {
2742                                         lpfc_disc_state_machine(vports[i], ndlp,
2743                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2744                                         lpfc_disc_state_machine(vports[i], ndlp,
2745                                                 NULL, NLP_EVT_DEVICE_RM);
2746                                 }
2747                                 spin_lock_irq(shost->host_lock);
2748                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2749                                 spin_unlock_irq(shost->host_lock);
2750                                 /*
2751                                  * Whenever an SLI4 port goes offline, free the
2752                                  * RPI. Get a new RPI when the adapter port
2753                                  * comes back online.
2754                                  */
2755                                 if (phba->sli_rev == LPFC_SLI_REV4)
2756                                         lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi);
2757                                 lpfc_unreg_rpi(vports[i], ndlp);
2758                         }
2759                 }
2760         }
2761         lpfc_destroy_vport_work_array(phba, vports);
2762
2763         lpfc_sli_mbox_sys_shutdown(phba, mbx_action);
2764 }
2765
2766 /**
2767  * lpfc_offline - Bring a HBA offline
2768  * @phba: pointer to lpfc hba data structure.
2769  *
2770  * This routine actually brings a HBA offline. It stops all the timers
2771  * associated with the HBA, brings down the SLI layer, and eventually
2772  * marks the HBA as in offline state for the upper layer protocol.
2773  **/
2774 void
2775 lpfc_offline(struct lpfc_hba *phba)
2776 {
2777         struct Scsi_Host  *shost;
2778         struct lpfc_vport **vports;
2779         int i;
2780
2781         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2782                 return;
2783
2784         /* stop port and all timers associated with this hba */
2785         lpfc_stop_port(phba);
2786         vports = lpfc_create_vport_work_array(phba);
2787         if (vports != NULL)
2788                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2789                         lpfc_stop_vport_timers(vports[i]);
2790         lpfc_destroy_vport_work_array(phba, vports);
2791         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2792                         "0460 Bring Adapter offline\n");
2793         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2794            now.  */
2795         lpfc_sli_hba_down(phba);
2796         spin_lock_irq(&phba->hbalock);
2797         phba->work_ha = 0;
2798         spin_unlock_irq(&phba->hbalock);
2799         vports = lpfc_create_vport_work_array(phba);
2800         if (vports != NULL)
2801                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2802                         shost = lpfc_shost_from_vport(vports[i]);
2803                         spin_lock_irq(shost->host_lock);
2804                         vports[i]->work_port_events = 0;
2805                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2806                         spin_unlock_irq(shost->host_lock);
2807                 }
2808         lpfc_destroy_vport_work_array(phba, vports);
2809 }
2810
2811 /**
2812  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2813  * @phba: pointer to lpfc hba data structure.
2814  *
2815  * This routine is to free all the SCSI buffers and IOCBs from the driver
2816  * list back to kernel. It is called from lpfc_pci_remove_one to free
2817  * the internal resources before the device is removed from the system.
2818  **/
2819 static void
2820 lpfc_scsi_free(struct lpfc_hba *phba)
2821 {
2822         struct lpfc_scsi_buf *sb, *sb_next;
2823         struct lpfc_iocbq *io, *io_next;
2824
2825         spin_lock_irq(&phba->hbalock);
2826         /* Release all the lpfc_scsi_bufs maintained by this host. */
2827         spin_lock(&phba->scsi_buf_list_lock);
2828         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2829                 list_del(&sb->list);
2830                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2831                               sb->dma_handle);
2832                 kfree(sb);
2833                 phba->total_scsi_bufs--;
2834         }
2835         spin_unlock(&phba->scsi_buf_list_lock);
2836
2837         /* Release all the lpfc_iocbq entries maintained by this host. */
2838         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2839                 list_del(&io->list);
2840                 kfree(io);
2841                 phba->total_iocbq_bufs--;
2842         }
2843
2844         spin_unlock_irq(&phba->hbalock);
2845 }
2846
2847 /**
2848  * lpfc_sli4_xri_sgl_update - update xri-sgl sizing and mapping
2849  * @phba: pointer to lpfc hba data structure.
2850  *
2851  * This routine first calculates the sizes of the current els and allocated
2852  * scsi sgl lists, and then goes through all sgls to updates the physical
2853  * XRIs assigned due to port function reset. During port initialization, the
2854  * current els and allocated scsi sgl lists are 0s.
2855  *
2856  * Return codes
2857  *   0 - successful (for now, it always returns 0)
2858  **/
2859 int
2860 lpfc_sli4_xri_sgl_update(struct lpfc_hba *phba)
2861 {
2862         struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL;
2863         struct lpfc_scsi_buf *psb = NULL, *psb_next = NULL;
2864         uint16_t i, lxri, xri_cnt, els_xri_cnt, scsi_xri_cnt;
2865         LIST_HEAD(els_sgl_list);
2866         LIST_HEAD(scsi_sgl_list);
2867         int rc;
2868
2869         /*
2870          * update on pci function's els xri-sgl list
2871          */
2872         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
2873         if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) {
2874                 /* els xri-sgl expanded */
2875                 xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt;
2876                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2877                                 "3157 ELS xri-sgl count increased from "
2878                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2879                                 els_xri_cnt);
2880                 /* allocate the additional els sgls */
2881                 for (i = 0; i < xri_cnt; i++) {
2882                         sglq_entry = kzalloc(sizeof(struct lpfc_sglq),
2883                                              GFP_KERNEL);
2884                         if (sglq_entry == NULL) {
2885                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2886                                                 "2562 Failure to allocate an "
2887                                                 "ELS sgl entry:%d\n", i);
2888                                 rc = -ENOMEM;
2889                                 goto out_free_mem;
2890                         }
2891                         sglq_entry->buff_type = GEN_BUFF_TYPE;
2892                         sglq_entry->virt = lpfc_mbuf_alloc(phba, 0,
2893                                                            &sglq_entry->phys);
2894                         if (sglq_entry->virt == NULL) {
2895                                 kfree(sglq_entry);
2896                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2897                                                 "2563 Failure to allocate an "
2898                                                 "ELS mbuf:%d\n", i);
2899                                 rc = -ENOMEM;
2900                                 goto out_free_mem;
2901                         }
2902                         sglq_entry->sgl = sglq_entry->virt;
2903                         memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
2904                         sglq_entry->state = SGL_FREED;
2905                         list_add_tail(&sglq_entry->list, &els_sgl_list);
2906                 }
2907                 spin_lock(&phba->hbalock);
2908                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2909                 spin_unlock(&phba->hbalock);
2910         } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) {
2911                 /* els xri-sgl shrinked */
2912                 xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt;
2913                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2914                                 "3158 ELS xri-sgl count decreased from "
2915                                 "%d to %d\n", phba->sli4_hba.els_xri_cnt,
2916                                 els_xri_cnt);
2917                 spin_lock_irq(&phba->hbalock);
2918                 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &els_sgl_list);
2919                 spin_unlock_irq(&phba->hbalock);
2920                 /* release extra els sgls from list */
2921                 for (i = 0; i < xri_cnt; i++) {
2922                         list_remove_head(&els_sgl_list,
2923                                          sglq_entry, struct lpfc_sglq, list);
2924                         if (sglq_entry) {
2925                                 lpfc_mbuf_free(phba, sglq_entry->virt,
2926                                                sglq_entry->phys);
2927                                 kfree(sglq_entry);
2928                         }
2929                 }
2930                 spin_lock_irq(&phba->hbalock);
2931                 list_splice_init(&els_sgl_list, &phba->sli4_hba.lpfc_sgl_list);
2932                 spin_unlock_irq(&phba->hbalock);
2933         } else
2934                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2935                                 "3163 ELS xri-sgl count unchanged: %d\n",
2936                                 els_xri_cnt);
2937         phba->sli4_hba.els_xri_cnt = els_xri_cnt;
2938
2939         /* update xris to els sgls on the list */
2940         sglq_entry = NULL;
2941         sglq_entry_next = NULL;
2942         list_for_each_entry_safe(sglq_entry, sglq_entry_next,
2943                                  &phba->sli4_hba.lpfc_sgl_list, list) {
2944                 lxri = lpfc_sli4_next_xritag(phba);
2945                 if (lxri == NO_XRI) {
2946                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2947                                         "2400 Failed to allocate xri for "
2948                                         "ELS sgl\n");
2949                         rc = -ENOMEM;
2950                         goto out_free_mem;
2951                 }
2952                 sglq_entry->sli4_lxritag = lxri;
2953                 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
2954         }
2955
2956         /*
2957          * update on pci function's allocated scsi xri-sgl list
2958          */
2959         phba->total_scsi_bufs = 0;
2960
2961         /* maximum number of xris available for scsi buffers */
2962         phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri -
2963                                       els_xri_cnt;
2964
2965         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2966                         "2401 Current allocated SCSI xri-sgl count:%d, "
2967                         "maximum  SCSI xri count:%d\n",
2968                         phba->sli4_hba.scsi_xri_cnt,
2969                         phba->sli4_hba.scsi_xri_max);
2970
2971         spin_lock_irq(&phba->scsi_buf_list_lock);
2972         list_splice_init(&phba->lpfc_scsi_buf_list, &scsi_sgl_list);
2973         spin_unlock_irq(&phba->scsi_buf_list_lock);
2974
2975         if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) {
2976                 /* max scsi xri shrinked below the allocated scsi buffers */
2977                 scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt -
2978                                         phba->sli4_hba.scsi_xri_max;
2979                 /* release the extra allocated scsi buffers */
2980                 for (i = 0; i < scsi_xri_cnt; i++) {
2981                         list_remove_head(&scsi_sgl_list, psb,
2982                                          struct lpfc_scsi_buf, list);
2983                         pci_pool_free(phba->lpfc_scsi_dma_buf_pool, psb->data,
2984                                       psb->dma_handle);
2985                         kfree(psb);
2986                 }
2987                 spin_lock_irq(&phba->scsi_buf_list_lock);
2988                 phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt;
2989                 spin_unlock_irq(&phba->scsi_buf_list_lock);
2990         }
2991
2992         /* update xris associated to remaining allocated scsi buffers */
2993         psb = NULL;
2994         psb_next = NULL;
2995         list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) {
2996                 lxri = lpfc_sli4_next_xritag(phba);
2997                 if (lxri == NO_XRI) {
2998                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2999                                         "2560 Failed to allocate xri for "
3000                                         "scsi buffer\n");
3001                         rc = -ENOMEM;
3002                         goto out_free_mem;
3003                 }
3004                 psb->cur_iocbq.sli4_lxritag = lxri;
3005                 psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri];
3006         }
3007         spin_lock(&phba->scsi_buf_list_lock);
3008         list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list);
3009         spin_unlock(&phba->scsi_buf_list_lock);
3010
3011         return 0;
3012
3013 out_free_mem:
3014         lpfc_free_els_sgl_list(phba);
3015         lpfc_scsi_free(phba);
3016         return rc;
3017 }
3018
3019 /**
3020  * lpfc_create_port - Create an FC port
3021  * @phba: pointer to lpfc hba data structure.
3022  * @instance: a unique integer ID to this FC port.
3023  * @dev: pointer to the device data structure.
3024  *
3025  * This routine creates a FC port for the upper layer protocol. The FC port
3026  * can be created on top of either a physical port or a virtual port provided
3027  * by the HBA. This routine also allocates a SCSI host data structure (shost)
3028  * and associates the FC port created before adding the shost into the SCSI
3029  * layer.
3030  *
3031  * Return codes
3032  *   @vport - pointer to the virtual N_Port data structure.
3033  *   NULL - port create failed.
3034  **/
3035 struct lpfc_vport *
3036 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
3037 {
3038         struct lpfc_vport *vport;
3039         struct Scsi_Host  *shost;
3040         int error = 0;
3041
3042         if (dev != &phba->pcidev->dev)
3043                 shost = scsi_host_alloc(&lpfc_vport_template,
3044                                         sizeof(struct lpfc_vport));
3045         else
3046                 shost = scsi_host_alloc(&lpfc_template,
3047                                         sizeof(struct lpfc_vport));
3048         if (!shost)
3049                 goto out;
3050
3051         vport = (struct lpfc_vport *) shost->hostdata;
3052         vport->phba = phba;
3053         vport->load_flag |= FC_LOADING;
3054         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
3055         vport->fc_rscn_flush = 0;
3056
3057         lpfc_get_vport_cfgparam(vport);
3058         shost->unique_id = instance;
3059         shost->max_id = LPFC_MAX_TARGET;
3060         shost->max_lun = vport->cfg_max_luns;
3061         shost->this_id = -1;
3062         shost->max_cmd_len = 16;
3063         if (phba->sli_rev == LPFC_SLI_REV4) {
3064                 shost->dma_boundary =
3065                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
3066                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
3067         }
3068
3069         /*
3070          * Set initial can_queue value since 0 is no longer supported and
3071          * scsi_add_host will fail. This will be adjusted later based on the
3072          * max xri value determined in hba setup.
3073          */
3074         shost->can_queue = phba->cfg_hba_queue_depth - 10;
3075         if (dev != &phba->pcidev->dev) {
3076                 shost->transportt = lpfc_vport_transport_template;
3077                 vport->port_type = LPFC_NPIV_PORT;
3078         } else {
3079                 shost->transportt = lpfc_transport_template;
3080                 vport->port_type = LPFC_PHYSICAL_PORT;
3081         }
3082
3083         /* Initialize all internally managed lists. */
3084         INIT_LIST_HEAD(&vport->fc_nodes);
3085         INIT_LIST_HEAD(&vport->rcv_buffer_list);
3086         spin_lock_init(&vport->work_port_lock);
3087
3088         init_timer(&vport->fc_disctmo);
3089         vport->fc_disctmo.function = lpfc_disc_timeout;
3090         vport->fc_disctmo.data = (unsigned long)vport;
3091
3092         init_timer(&vport->fc_fdmitmo);
3093         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
3094         vport->fc_fdmitmo.data = (unsigned long)vport;
3095
3096         init_timer(&vport->els_tmofunc);
3097         vport->els_tmofunc.function = lpfc_els_timeout;
3098         vport->els_tmofunc.data = (unsigned long)vport;
3099
3100         init_timer(&vport->delayed_disc_tmo);
3101         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
3102         vport->delayed_disc_tmo.data = (unsigned long)vport;
3103
3104         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
3105         if (error)
3106                 goto out_put_shost;
3107
3108         spin_lock_irq(&phba->hbalock);
3109         list_add_tail(&vport->listentry, &phba->port_list);
3110         spin_unlock_irq(&phba->hbalock);
3111         return vport;
3112
3113 out_put_shost:
3114         scsi_host_put(shost);
3115 out:
3116         return NULL;
3117 }
3118
3119 /**
3120  * destroy_port -  destroy an FC port
3121  * @vport: pointer to an lpfc virtual N_Port data structure.
3122  *
3123  * This routine destroys a FC port from the upper layer protocol. All the
3124  * resources associated with the port are released.
3125  **/
3126 void
3127 destroy_port(struct lpfc_vport *vport)
3128 {
3129         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
3130         struct lpfc_hba  *phba = vport->phba;
3131
3132         lpfc_debugfs_terminate(vport);
3133         fc_remove_host(shost);
3134         scsi_remove_host(shost);
3135
3136         spin_lock_irq(&phba->hbalock);
3137         list_del_init(&vport->listentry);
3138         spin_unlock_irq(&phba->hbalock);
3139
3140         lpfc_cleanup(vport);
3141         return;
3142 }
3143
3144 /**
3145  * lpfc_get_instance - Get a unique integer ID
3146  *
3147  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
3148  * uses the kernel idr facility to perform the task.
3149  *
3150  * Return codes:
3151  *   instance - a unique integer ID allocated as the new instance.
3152  *   -1 - lpfc get instance failed.
3153  **/
3154 int
3155 lpfc_get_instance(void)
3156 {
3157         int instance = 0;
3158
3159         /* Assign an unused number */
3160         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
3161                 return -1;
3162         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
3163                 return -1;
3164         return instance;
3165 }
3166
3167 /**
3168  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
3169  * @shost: pointer to SCSI host data structure.
3170  * @time: elapsed time of the scan in jiffies.
3171  *
3172  * This routine is called by the SCSI layer with a SCSI host to determine
3173  * whether the scan host is finished.
3174  *
3175  * Note: there is no scan_start function as adapter initialization will have
3176  * asynchronously kicked off the link initialization.
3177  *
3178  * Return codes
3179  *   0 - SCSI host scan is not over yet.
3180  *   1 - SCSI host scan is over.
3181  **/
3182 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
3183 {
3184         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3185         struct lpfc_hba   *phba = vport->phba;
3186         int stat = 0;
3187
3188         spin_lock_irq(shost->host_lock);
3189
3190         if (vport->load_flag & FC_UNLOADING) {
3191                 stat = 1;
3192                 goto finished;
3193         }
3194         if (time >= 30 * HZ) {
3195                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3196                                 "0461 Scanning longer than 30 "
3197                                 "seconds.  Continuing initialization\n");
3198                 stat = 1;
3199                 goto finished;
3200         }
3201         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
3202                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3203                                 "0465 Link down longer than 15 "
3204                                 "seconds.  Continuing initialization\n");
3205                 stat = 1;
3206                 goto finished;
3207         }
3208
3209         if (vport->port_state != LPFC_VPORT_READY)
3210                 goto finished;
3211         if (vport->num_disc_nodes || vport->fc_prli_sent)
3212                 goto finished;
3213         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
3214                 goto finished;
3215         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
3216                 goto finished;
3217
3218         stat = 1;
3219
3220 finished:
3221         spin_unlock_irq(shost->host_lock);
3222         return stat;
3223 }
3224
3225 /**
3226  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
3227  * @shost: pointer to SCSI host data structure.
3228  *
3229  * This routine initializes a given SCSI host attributes on a FC port. The
3230  * SCSI host can be either on top of a physical port or a virtual port.
3231  **/
3232 void lpfc_host_attrib_init(struct Scsi_Host *shost)
3233 {
3234         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
3235         struct lpfc_hba   *phba = vport->phba;
3236         /*
3237          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
3238          */
3239
3240         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
3241         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
3242         fc_host_supported_classes(shost) = FC_COS_CLASS3;
3243
3244         memset(fc_host_supported_fc4s(shost), 0,
3245                sizeof(fc_host_supported_fc4s(shost)));
3246         fc_host_supported_fc4s(shost)[2] = 1;
3247         fc_host_supported_fc4s(shost)[7] = 1;
3248
3249         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
3250                                  sizeof fc_host_symbolic_name(shost));
3251
3252         fc_host_supported_speeds(shost) = 0;
3253         if (phba->lmt & LMT_16Gb)
3254                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT;
3255         if (phba->lmt & LMT_10Gb)
3256                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
3257         if (phba->lmt & LMT_8Gb)
3258                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
3259         if (phba->lmt & LMT_4Gb)
3260                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
3261         if (phba->lmt & LMT_2Gb)
3262                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
3263         if (phba->lmt & LMT_1Gb)
3264                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
3265
3266         fc_host_maxframe_size(shost) =
3267                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
3268                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
3269
3270         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
3271
3272         /* This value is also unchanging */
3273         memset(fc_host_active_fc4s(shost), 0,
3274                sizeof(fc_host_active_fc4s(shost)));
3275         fc_host_active_fc4s(shost)[2] = 1;
3276         fc_host_active_fc4s(shost)[7] = 1;
3277
3278         fc_host_max_npiv_vports(shost) = phba->max_vpi;
3279         spin_lock_irq(shost->host_lock);
3280         vport->load_flag &= ~FC_LOADING;
3281         spin_unlock_irq(shost->host_lock);
3282 }
3283
3284 /**
3285  * lpfc_stop_port_s3 - Stop SLI3 device port
3286  * @phba: pointer to lpfc hba data structure.
3287  *
3288  * This routine is invoked to stop an SLI3 device port, it stops the device
3289  * from generating interrupts and stops the device driver's timers for the
3290  * device.
3291  **/
3292 static void
3293 lpfc_stop_port_s3(struct lpfc_hba *phba)
3294 {
3295         /* Clear all interrupt enable conditions */
3296         writel(0, phba->HCregaddr);
3297         readl(phba->HCregaddr); /* flush */
3298         /* Clear all pending interrupts */
3299         writel(0xffffffff, phba->HAregaddr);
3300         readl(phba->HAregaddr); /* flush */
3301
3302         /* Reset some HBA SLI setup states */
3303         lpfc_stop_hba_timers(phba);
3304         phba->pport->work_port_events = 0;
3305 }
3306
3307 /**
3308  * lpfc_stop_port_s4 - Stop SLI4 device port
3309  * @phba: pointer to lpfc hba data structure.
3310  *
3311  * This routine is invoked to stop an SLI4 device port, it stops the device
3312  * from generating interrupts and stops the device driver's timers for the
3313  * device.
3314  **/
3315 static void
3316 lpfc_stop_port_s4(struct lpfc_hba *phba)
3317 {
3318         /* Reset some HBA SLI4 setup states */
3319         lpfc_stop_hba_timers(phba);
3320         phba->pport->work_port_events = 0;
3321         phba->sli4_hba.intr_enable = 0;
3322 }
3323
3324 /**
3325  * lpfc_stop_port - Wrapper function for stopping hba port
3326  * @phba: Pointer to HBA context object.
3327  *
3328  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3329  * the API jump table function pointer from the lpfc_hba struct.
3330  **/
3331 void
3332 lpfc_stop_port(struct lpfc_hba *phba)
3333 {
3334         phba->lpfc_stop_port(phba);
3335 }
3336
3337 /**
3338  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3339  * @phba: Pointer to hba for which this call is being executed.
3340  *
3341  * This routine starts the timer waiting for the FCF rediscovery to complete.
3342  **/
3343 void
3344 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3345 {
3346         unsigned long fcf_redisc_wait_tmo =
3347                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3348         /* Start fcf rediscovery wait period timer */
3349         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3350         spin_lock_irq(&phba->hbalock);
3351         /* Allow action to new fcf asynchronous event */
3352         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3353         /* Mark the FCF rediscovery pending state */
3354         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3355         spin_unlock_irq(&phba->hbalock);
3356 }
3357
3358 /**
3359  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3360  * @ptr: Map to lpfc_hba data structure pointer.
3361  *
3362  * This routine is invoked when waiting for FCF table rediscover has been
3363  * timed out. If new FCF record(s) has (have) been discovered during the
3364  * wait period, a new FCF event shall be added to the FCOE async event
3365  * list, and then worker thread shall be waked up for processing from the
3366  * worker thread context.
3367  **/
3368 void
3369 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3370 {
3371         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3372
3373         /* Don't send FCF rediscovery event if timer cancelled */
3374         spin_lock_irq(&phba->hbalock);
3375         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3376                 spin_unlock_irq(&phba->hbalock);
3377                 return;
3378         }
3379         /* Clear FCF rediscovery timer pending flag */
3380         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3381         /* FCF rediscovery event to worker thread */
3382         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3383         spin_unlock_irq(&phba->hbalock);
3384         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3385                         "2776 FCF rediscover quiescent timer expired\n");
3386         /* wake up worker thread */
3387         lpfc_worker_wake_up(phba);
3388 }
3389
3390 /**
3391  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3392  * @phba: pointer to lpfc hba data structure.
3393  * @acqe_link: pointer to the async link completion queue entry.
3394  *
3395  * This routine is to parse the SLI4 link-attention link fault code and
3396  * translate it into the base driver's read link attention mailbox command
3397  * status.
3398  *
3399  * Return: Link-attention status in terms of base driver's coding.
3400  **/
3401 static uint16_t
3402 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3403                            struct lpfc_acqe_link *acqe_link)
3404 {
3405         uint16_t latt_fault;
3406
3407         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3408         case LPFC_ASYNC_LINK_FAULT_NONE:
3409         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3410         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3411                 latt_fault = 0;
3412                 break;
3413         default:
3414                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3415                                 "0398 Invalid link fault code: x%x\n",
3416                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3417                 latt_fault = MBXERR_ERROR;
3418                 break;
3419         }
3420         return latt_fault;
3421 }
3422
3423 /**
3424  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3425  * @phba: pointer to lpfc hba data structure.
3426  * @acqe_link: pointer to the async link completion queue entry.
3427  *
3428  * This routine is to parse the SLI4 link attention type and translate it
3429  * into the base driver's link attention type coding.
3430  *
3431  * Return: Link attention type in terms of base driver's coding.
3432  **/
3433 static uint8_t
3434 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3435                           struct lpfc_acqe_link *acqe_link)
3436 {
3437         uint8_t att_type;
3438
3439         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3440         case LPFC_ASYNC_LINK_STATUS_DOWN:
3441         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3442                 att_type = LPFC_ATT_LINK_DOWN;
3443                 break;
3444         case LPFC_ASYNC_LINK_STATUS_UP:
3445                 /* Ignore physical link up events - wait for logical link up */
3446                 att_type = LPFC_ATT_RESERVED;
3447                 break;
3448         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3449                 att_type = LPFC_ATT_LINK_UP;
3450                 break;
3451         default:
3452                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3453                                 "0399 Invalid link attention type: x%x\n",
3454                                 bf_get(lpfc_acqe_link_status, acqe_link));
3455                 att_type = LPFC_ATT_RESERVED;
3456                 break;
3457         }
3458         return att_type;
3459 }
3460
3461 /**
3462  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3463  * @phba: pointer to lpfc hba data structure.
3464  * @acqe_link: pointer to the async link completion queue entry.
3465  *
3466  * This routine is to parse the SLI4 link-attention link speed and translate
3467  * it into the base driver's link-attention link speed coding.
3468  *
3469  * Return: Link-attention link speed in terms of base driver's coding.
3470  **/
3471 static uint8_t
3472 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3473                                 struct lpfc_acqe_link *acqe_link)
3474 {
3475         uint8_t link_speed;
3476
3477         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3478         case LPFC_ASYNC_LINK_SPEED_ZERO:
3479         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3480         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3481                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3482                 break;
3483         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3484                 link_speed = LPFC_LINK_SPEED_1GHZ;
3485                 break;
3486         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3487                 link_speed = LPFC_LINK_SPEED_10GHZ;
3488                 break;
3489         default:
3490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3491                                 "0483 Invalid link-attention link speed: x%x\n",
3492                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3493                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3494                 break;
3495         }
3496         return link_speed;
3497 }
3498
3499 /**
3500  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3501  * @phba: pointer to lpfc hba data structure.
3502  * @acqe_link: pointer to the async link completion queue entry.
3503  *
3504  * This routine is to handle the SLI4 asynchronous FCoE link event.
3505  **/
3506 static void
3507 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3508                          struct lpfc_acqe_link *acqe_link)
3509 {
3510         struct lpfc_dmabuf *mp;
3511         LPFC_MBOXQ_t *pmb;
3512         MAILBOX_t *mb;
3513         struct lpfc_mbx_read_top *la;
3514         uint8_t att_type;
3515         int rc;
3516
3517         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3518         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3519                 return;
3520         phba->fcoe_eventtag = acqe_link->event_tag;
3521         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3522         if (!pmb) {
3523                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3524                                 "0395 The mboxq allocation failed\n");
3525                 return;
3526         }
3527         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3528         if (!mp) {
3529                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3530                                 "0396 The lpfc_dmabuf allocation failed\n");
3531                 goto out_free_pmb;
3532         }
3533         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3534         if (!mp->virt) {
3535                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3536                                 "0397 The mbuf allocation failed\n");
3537                 goto out_free_dmabuf;
3538         }
3539
3540         /* Cleanup any outstanding ELS commands */
3541         lpfc_els_flush_all_cmd(phba);
3542
3543         /* Block ELS IOCBs until we have done process link event */
3544         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3545
3546         /* Update link event statistics */
3547         phba->sli.slistat.link_event++;
3548
3549         /* Create lpfc_handle_latt mailbox command from link ACQE */
3550         lpfc_read_topology(phba, pmb, mp);
3551         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3552         pmb->vport = phba->pport;
3553
3554         /* Keep the link status for extra SLI4 state machine reference */
3555         phba->sli4_hba.link_state.speed =
3556                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3557         phba->sli4_hba.link_state.duplex =
3558                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3559         phba->sli4_hba.link_state.status =
3560                                 bf_get(lpfc_acqe_link_status, acqe_link);
3561         phba->sli4_hba.link_state.type =
3562                                 bf_get(lpfc_acqe_link_type, acqe_link);
3563         phba->sli4_hba.link_state.number =
3564                                 bf_get(lpfc_acqe_link_number, acqe_link);
3565         phba->sli4_hba.link_state.fault =
3566                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3567         phba->sli4_hba.link_state.logical_speed =
3568                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3569         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3570                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3571                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3572                         "Logical speed:%dMbps Fault:%d\n",
3573                         phba->sli4_hba.link_state.speed,
3574                         phba->sli4_hba.link_state.topology,
3575                         phba->sli4_hba.link_state.status,
3576                         phba->sli4_hba.link_state.type,
3577                         phba->sli4_hba.link_state.number,
3578                         phba->sli4_hba.link_state.logical_speed * 10,
3579                         phba->sli4_hba.link_state.fault);
3580         /*
3581          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3582          * topology info. Note: Optional for non FC-AL ports.
3583          */
3584         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3585                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3586                 if (rc == MBX_NOT_FINISHED)
3587                         goto out_free_dmabuf;
3588                 return;
3589         }
3590         /*
3591          * For FCoE Mode: fill in all the topology information we need and call
3592          * the READ_TOPOLOGY completion routine to continue without actually
3593          * sending the READ_TOPOLOGY mailbox command to the port.
3594          */
3595         /* Parse and translate status field */
3596         mb = &pmb->u.mb;
3597         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3598
3599         /* Parse and translate link attention fields */
3600         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3601         la->eventTag = acqe_link->event_tag;
3602         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3603         bf_set(lpfc_mbx_read_top_link_spd, la,
3604                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3605
3606         /* Fake the the following irrelvant fields */
3607         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3608         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3609         bf_set(lpfc_mbx_read_top_il, la, 0);
3610         bf_set(lpfc_mbx_read_top_pb, la, 0);
3611         bf_set(lpfc_mbx_read_top_fa, la, 0);
3612         bf_set(lpfc_mbx_read_top_mm, la, 0);
3613
3614         /* Invoke the lpfc_handle_latt mailbox command callback function */
3615         lpfc_mbx_cmpl_read_topology(phba, pmb);
3616
3617         return;
3618
3619 out_free_dmabuf:
3620         kfree(mp);
3621 out_free_pmb:
3622         mempool_free(pmb, phba->mbox_mem_pool);
3623 }
3624
3625 /**
3626  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3627  * @phba: pointer to lpfc hba data structure.
3628  * @acqe_fc: pointer to the async fc completion queue entry.
3629  *
3630  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3631  * that the event was received and then issue a read_topology mailbox command so
3632  * that the rest of the driver will treat it the same as SLI3.
3633  **/
3634 static void
3635 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3636 {
3637         struct lpfc_dmabuf *mp;
3638         LPFC_MBOXQ_t *pmb;
3639         int rc;
3640
3641         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3642             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3643                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3644                                 "2895 Non FC link Event detected.(%d)\n",
3645                                 bf_get(lpfc_trailer_type, acqe_fc));
3646                 return;
3647         }
3648         /* Keep the link status for extra SLI4 state machine reference */
3649         phba->sli4_hba.link_state.speed =
3650                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3651         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3652         phba->sli4_hba.link_state.topology =
3653                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3654         phba->sli4_hba.link_state.status =
3655                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3656         phba->sli4_hba.link_state.type =
3657                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3658         phba->sli4_hba.link_state.number =
3659                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3660         phba->sli4_hba.link_state.fault =
3661                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3662         phba->sli4_hba.link_state.logical_speed =
3663                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3664         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3665                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3666                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3667                         "%dMbps Fault:%d\n",
3668                         phba->sli4_hba.link_state.speed,
3669                         phba->sli4_hba.link_state.topology,
3670                         phba->sli4_hba.link_state.status,
3671                         phba->sli4_hba.link_state.type,
3672                         phba->sli4_hba.link_state.number,
3673                         phba->sli4_hba.link_state.logical_speed * 10,
3674                         phba->sli4_hba.link_state.fault);
3675         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3676         if (!pmb) {
3677                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3678                                 "2897 The mboxq allocation failed\n");
3679                 return;
3680         }
3681         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3682         if (!mp) {
3683                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3684                                 "2898 The lpfc_dmabuf allocation failed\n");
3685                 goto out_free_pmb;
3686         }
3687         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3688         if (!mp->virt) {
3689                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3690                                 "2899 The mbuf allocation failed\n");
3691                 goto out_free_dmabuf;
3692         }
3693
3694         /* Cleanup any outstanding ELS commands */
3695         lpfc_els_flush_all_cmd(phba);
3696
3697         /* Block ELS IOCBs until we have done process link event */
3698         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3699
3700         /* Update link event statistics */
3701         phba->sli.slistat.link_event++;
3702
3703         /* Create lpfc_handle_latt mailbox command from link ACQE */
3704         lpfc_read_topology(phba, pmb, mp);
3705         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3706         pmb->vport = phba->pport;
3707
3708         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3709         if (rc == MBX_NOT_FINISHED)
3710                 goto out_free_dmabuf;
3711         return;
3712
3713 out_free_dmabuf:
3714         kfree(mp);
3715 out_free_pmb:
3716         mempool_free(pmb, phba->mbox_mem_pool);
3717 }
3718
3719 /**
3720  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3721  * @phba: pointer to lpfc hba data structure.
3722  * @acqe_fc: pointer to the async SLI completion queue entry.
3723  *
3724  * This routine is to handle the SLI4 asynchronous SLI events.
3725  **/
3726 static void
3727 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3728 {
3729         char port_name;
3730         char message[80];
3731         uint8_t status;
3732         struct lpfc_acqe_misconfigured_event *misconfigured;
3733
3734         /* special case misconfigured event as it contains data for all ports */
3735         if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
3736                  LPFC_SLI_INTF_IF_TYPE_2) ||
3737                 (bf_get(lpfc_trailer_type, acqe_sli) !=
3738                         LPFC_SLI_EVENT_TYPE_MISCONFIGURED)) {
3739                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3740                                 "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3741                                 "x%08x SLI Event Type:%d\n",
3742                                 acqe_sli->event_data1, acqe_sli->event_data2,
3743                                 bf_get(lpfc_trailer_type, acqe_sli));
3744                 return;
3745         }
3746
3747         port_name = phba->Port[0];
3748         if (port_name == 0x00)
3749                 port_name = '?'; /* get port name is empty */
3750
3751         misconfigured = (struct lpfc_acqe_misconfigured_event *)
3752                                         &acqe_sli->event_data1;
3753
3754         /* fetch the status for this port */
3755         switch (phba->sli4_hba.lnk_info.lnk_no) {
3756         case LPFC_LINK_NUMBER_0:
3757                 status = bf_get(lpfc_sli_misconfigured_port0,
3758                                         &misconfigured->theEvent);
3759                 break;
3760         case LPFC_LINK_NUMBER_1:
3761                 status = bf_get(lpfc_sli_misconfigured_port1,
3762                                         &misconfigured->theEvent);
3763                 break;
3764         case LPFC_LINK_NUMBER_2:
3765                 status = bf_get(lpfc_sli_misconfigured_port2,
3766                                         &misconfigured->theEvent);
3767                 break;
3768         case LPFC_LINK_NUMBER_3:
3769                 status = bf_get(lpfc_sli_misconfigured_port3,
3770                                         &misconfigured->theEvent);
3771                 break;
3772         default:
3773                 status = ~LPFC_SLI_EVENT_STATUS_VALID;
3774                 break;
3775         }
3776
3777         switch (status) {
3778         case LPFC_SLI_EVENT_STATUS_VALID:
3779                 return; /* no message if the sfp is okay */
3780         case LPFC_SLI_EVENT_STATUS_NOT_PRESENT:
3781                 sprintf(message, "Not installed");
3782                 break;
3783         case LPFC_SLI_EVENT_STATUS_WRONG_TYPE:
3784                 sprintf(message,
3785                         "Optics of two types installed");
3786                 break;
3787         case LPFC_SLI_EVENT_STATUS_UNSUPPORTED:
3788                 sprintf(message, "Incompatible optics");
3789                 break;
3790         default:
3791                 /* firmware is reporting a status we don't know about */
3792                 sprintf(message, "Unknown event status x%02x", status);
3793                 break;
3794         }
3795
3796         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3797                         "3176 Misconfigured Physical Port - "
3798                         "Port Name %c %s\n", port_name, message);
3799 }
3800
3801 /**
3802  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3803  * @vport: pointer to vport data structure.
3804  *
3805  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3806  * response to a CVL event.
3807  *
3808  * Return the pointer to the ndlp with the vport if successful, otherwise
3809  * return NULL.
3810  **/
3811 static struct lpfc_nodelist *
3812 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3813 {
3814         struct lpfc_nodelist *ndlp;
3815         struct Scsi_Host *shost;
3816         struct lpfc_hba *phba;
3817
3818         if (!vport)
3819                 return NULL;
3820         phba = vport->phba;
3821         if (!phba)
3822                 return NULL;
3823         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3824         if (!ndlp) {
3825                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3826                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3827                 if (!ndlp)
3828                         return 0;
3829                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3830                 /* Set the node type */
3831                 ndlp->nlp_type |= NLP_FABRIC;
3832                 /* Put ndlp onto node list */
3833                 lpfc_enqueue_node(vport, ndlp);
3834         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3835                 /* re-setup ndlp without removing from node list */
3836                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3837                 if (!ndlp)
3838                         return 0;
3839         }
3840         if ((phba->pport->port_state < LPFC_FLOGI) &&
3841                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3842                 return NULL;
3843         /* If virtual link is not yet instantiated ignore CVL */
3844         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3845                 && (vport->port_state != LPFC_VPORT_FAILED))
3846                 return NULL;
3847         shost = lpfc_shost_from_vport(vport);
3848         if (!shost)
3849                 return NULL;
3850         lpfc_linkdown_port(vport);
3851         lpfc_cleanup_pending_mbox(vport);
3852         spin_lock_irq(shost->host_lock);
3853         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3854         spin_unlock_irq(shost->host_lock);
3855
3856         return ndlp;
3857 }
3858
3859 /**
3860  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3861  * @vport: pointer to lpfc hba data structure.
3862  *
3863  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3864  * response to a FCF dead event.
3865  **/
3866 static void
3867 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3868 {
3869         struct lpfc_vport **vports;
3870         int i;
3871
3872         vports = lpfc_create_vport_work_array(phba);
3873         if (vports)
3874                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3875                         lpfc_sli4_perform_vport_cvl(vports[i]);
3876         lpfc_destroy_vport_work_array(phba, vports);
3877 }
3878
3879 /**
3880  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3881  * @phba: pointer to lpfc hba data structure.
3882  * @acqe_link: pointer to the async fcoe completion queue entry.
3883  *
3884  * This routine is to handle the SLI4 asynchronous fcoe event.
3885  **/
3886 static void
3887 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3888                         struct lpfc_acqe_fip *acqe_fip)
3889 {
3890         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3891         int rc;
3892         struct lpfc_vport *vport;
3893         struct lpfc_nodelist *ndlp;
3894         struct Scsi_Host  *shost;
3895         int active_vlink_present;
3896         struct lpfc_vport **vports;
3897         int i;
3898
3899         phba->fc_eventTag = acqe_fip->event_tag;
3900         phba->fcoe_eventtag = acqe_fip->event_tag;
3901         switch (event_type) {
3902         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3903         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3904                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3905                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3906                                         LOG_DISCOVERY,
3907                                         "2546 New FCF event, evt_tag:x%x, "
3908                                         "index:x%x\n",
3909                                         acqe_fip->event_tag,
3910                                         acqe_fip->index);
3911                 else
3912                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3913                                         LOG_DISCOVERY,
3914                                         "2788 FCF param modified event, "
3915                                         "evt_tag:x%x, index:x%x\n",
3916                                         acqe_fip->event_tag,
3917                                         acqe_fip->index);
3918                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3919                         /*
3920                          * During period of FCF discovery, read the FCF
3921                          * table record indexed by the event to update
3922                          * FCF roundrobin failover eligible FCF bmask.
3923                          */
3924                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3925                                         LOG_DISCOVERY,
3926                                         "2779 Read FCF (x%x) for updating "
3927                                         "roundrobin FCF failover bmask\n",
3928                                         acqe_fip->index);
3929                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3930                 }
3931
3932                 /* If the FCF discovery is in progress, do nothing. */
3933                 spin_lock_irq(&phba->hbalock);
3934                 if (phba->hba_flag & FCF_TS_INPROG) {
3935                         spin_unlock_irq(&phba->hbalock);
3936                         break;
3937                 }
3938                 /* If fast FCF failover rescan event is pending, do nothing */
3939                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3940                         spin_unlock_irq(&phba->hbalock);
3941                         break;
3942                 }
3943
3944                 /* If the FCF has been in discovered state, do nothing. */
3945                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3946                         spin_unlock_irq(&phba->hbalock);
3947                         break;
3948                 }
3949                 spin_unlock_irq(&phba->hbalock);
3950
3951                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3952                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3953                                 "2770 Start FCF table scan per async FCF "
3954                                 "event, evt_tag:x%x, index:x%x\n",
3955                                 acqe_fip->event_tag, acqe_fip->index);
3956                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3957                                                      LPFC_FCOE_FCF_GET_FIRST);
3958                 if (rc)
3959                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3960                                         "2547 Issue FCF scan read FCF mailbox "
3961                                         "command failed (x%x)\n", rc);
3962                 break;
3963
3964         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3965                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3966                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3967                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3968                         acqe_fip->event_tag);
3969                 break;
3970
3971         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3972                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
3973                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3974                         "2549 FCF (x%x) disconnected from network, "
3975                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3976                 /*
3977                  * If we are in the middle of FCF failover process, clear
3978                  * the corresponding FCF bit in the roundrobin bitmap.
3979                  */
3980                 spin_lock_irq(&phba->hbalock);
3981                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3982                         spin_unlock_irq(&phba->hbalock);
3983                         /* Update FLOGI FCF failover eligible FCF bmask */
3984                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3985                         break;
3986                 }
3987                 spin_unlock_irq(&phba->hbalock);
3988
3989                 /* If the event is not for currently used fcf do nothing */
3990                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3991                         break;
3992
3993                 /*
3994                  * Otherwise, request the port to rediscover the entire FCF
3995                  * table for a fast recovery from case that the current FCF
3996                  * is no longer valid as we are not in the middle of FCF
3997                  * failover process already.
3998                  */
3999                 spin_lock_irq(&phba->hbalock);
4000                 /* Mark the fast failover process in progress */
4001                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
4002                 spin_unlock_irq(&phba->hbalock);
4003
4004                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4005                                 "2771 Start FCF fast failover process due to "
4006                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
4007                                 "\n", acqe_fip->event_tag, acqe_fip->index);
4008                 rc = lpfc_sli4_redisc_fcf_table(phba);
4009                 if (rc) {
4010                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4011                                         LOG_DISCOVERY,
4012                                         "2772 Issue FCF rediscover mabilbox "
4013                                         "command failed, fail through to FCF "
4014                                         "dead event\n");
4015                         spin_lock_irq(&phba->hbalock);
4016                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
4017                         spin_unlock_irq(&phba->hbalock);
4018                         /*
4019                          * Last resort will fail over by treating this
4020                          * as a link down to FCF registration.
4021                          */
4022                         lpfc_sli4_fcf_dead_failthrough(phba);
4023                 } else {
4024                         /* Reset FCF roundrobin bmask for new discovery */
4025                         lpfc_sli4_clear_fcf_rr_bmask(phba);
4026                         /*
4027                          * Handling fast FCF failover to a DEAD FCF event is
4028                          * considered equalivant to receiving CVL to all vports.
4029                          */
4030                         lpfc_sli4_perform_all_vport_cvl(phba);
4031                 }
4032                 break;
4033         case LPFC_FIP_EVENT_TYPE_CVL:
4034                 phba->fcoe_cvl_eventtag = acqe_fip->event_tag;
4035                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4036                         "2718 Clear Virtual Link Received for VPI 0x%x"
4037                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
4038
4039                 vport = lpfc_find_vport_by_vpid(phba,
4040                                                 acqe_fip->index);
4041                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
4042                 if (!ndlp)
4043                         break;
4044                 active_vlink_present = 0;
4045
4046                 vports = lpfc_create_vport_work_array(phba);
4047                 if (vports) {
4048                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
4049                                         i++) {
4050                                 if ((!(vports[i]->fc_flag &
4051                                         FC_VPORT_CVL_RCVD)) &&
4052                                         (vports[i]->port_state > LPFC_FDISC)) {
4053                                         active_vlink_present = 1;
4054                                         break;
4055                                 }
4056                         }
4057                         lpfc_destroy_vport_work_array(phba, vports);
4058                 }
4059
4060                 if (active_vlink_present) {
4061                         /*
4062                          * If there are other active VLinks present,
4063                          * re-instantiate the Vlink using FDISC.
4064                          */
4065                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
4066                         shost = lpfc_shost_from_vport(vport);
4067                         spin_lock_irq(shost->host_lock);
4068                         ndlp->nlp_flag |= NLP_DELAY_TMO;
4069                         spin_unlock_irq(shost->host_lock);
4070                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
4071                         vport->port_state = LPFC_FDISC;
4072                 } else {
4073                         /*
4074                          * Otherwise, we request port to rediscover
4075                          * the entire FCF table for a fast recovery
4076                          * from possible case that the current FCF
4077                          * is no longer valid if we are not already
4078                          * in the FCF failover process.
4079                          */
4080                         spin_lock_irq(&phba->hbalock);
4081                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
4082                                 spin_unlock_irq(&phba->hbalock);
4083                                 break;
4084                         }
4085                         /* Mark the fast failover process in progress */
4086                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
4087                         spin_unlock_irq(&phba->hbalock);
4088                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
4089                                         LOG_DISCOVERY,
4090                                         "2773 Start FCF failover per CVL, "
4091                                         "evt_tag:x%x\n", acqe_fip->event_tag);
4092                         rc = lpfc_sli4_redisc_fcf_table(phba);
4093                         if (rc) {
4094                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
4095                                                 LOG_DISCOVERY,
4096                                                 "2774 Issue FCF rediscover "
4097                                                 "mabilbox command failed, "
4098                                                 "through to CVL event\n");
4099                                 spin_lock_irq(&phba->hbalock);
4100                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
4101                                 spin_unlock_irq(&phba->hbalock);
4102                                 /*
4103                                  * Last resort will be re-try on the
4104                                  * the current registered FCF entry.
4105                                  */
4106                                 lpfc_retry_pport_discovery(phba);
4107                         } else
4108                                 /*
4109                                  * Reset FCF roundrobin bmask for new
4110                                  * discovery.
4111                                  */
4112                                 lpfc_sli4_clear_fcf_rr_bmask(phba);
4113                 }
4114                 break;
4115         default:
4116                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4117                         "0288 Unknown FCoE event type 0x%x event tag "
4118                         "0x%x\n", event_type, acqe_fip->event_tag);
4119                 break;
4120         }
4121 }
4122
4123 /**
4124  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
4125  * @phba: pointer to lpfc hba data structure.
4126  * @acqe_link: pointer to the async dcbx completion queue entry.
4127  *
4128  * This routine is to handle the SLI4 asynchronous dcbx event.
4129  **/
4130 static void
4131 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
4132                          struct lpfc_acqe_dcbx *acqe_dcbx)
4133 {
4134         phba->fc_eventTag = acqe_dcbx->event_tag;
4135         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4136                         "0290 The SLI4 DCBX asynchronous event is not "
4137                         "handled yet\n");
4138 }
4139
4140 /**
4141  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
4142  * @phba: pointer to lpfc hba data structure.
4143  * @acqe_link: pointer to the async grp5 completion queue entry.
4144  *
4145  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
4146  * is an asynchronous notified of a logical link speed change.  The Port
4147  * reports the logical link speed in units of 10Mbps.
4148  **/
4149 static void
4150 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
4151                          struct lpfc_acqe_grp5 *acqe_grp5)
4152 {
4153         uint16_t prev_ll_spd;
4154
4155         phba->fc_eventTag = acqe_grp5->event_tag;
4156         phba->fcoe_eventtag = acqe_grp5->event_tag;
4157         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
4158         phba->sli4_hba.link_state.logical_speed =
4159                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
4160         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4161                         "2789 GRP5 Async Event: Updating logical link speed "
4162                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
4163                         (phba->sli4_hba.link_state.logical_speed*10));
4164 }
4165
4166 /**
4167  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
4168  * @phba: pointer to lpfc hba data structure.
4169  *
4170  * This routine is invoked by the worker thread to process all the pending
4171  * SLI4 asynchronous events.
4172  **/
4173 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
4174 {
4175         struct lpfc_cq_event *cq_event;
4176
4177         /* First, declare the async event has been handled */
4178         spin_lock_irq(&phba->hbalock);
4179         phba->hba_flag &= ~ASYNC_EVENT;
4180         spin_unlock_irq(&phba->hbalock);
4181         /* Now, handle all the async events */
4182         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
4183                 /* Get the first event from the head of the event queue */
4184                 spin_lock_irq(&phba->hbalock);
4185                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
4186                                  cq_event, struct lpfc_cq_event, list);
4187                 spin_unlock_irq(&phba->hbalock);
4188                 /* Process the asynchronous event */
4189                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
4190                 case LPFC_TRAILER_CODE_LINK:
4191                         lpfc_sli4_async_link_evt(phba,
4192                                                  &cq_event->cqe.acqe_link);
4193                         break;
4194                 case LPFC_TRAILER_CODE_FCOE:
4195                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
4196                         break;
4197                 case LPFC_TRAILER_CODE_DCBX:
4198                         lpfc_sli4_async_dcbx_evt(phba,
4199                                                  &cq_event->cqe.acqe_dcbx);
4200                         break;
4201                 case LPFC_TRAILER_CODE_GRP5:
4202                         lpfc_sli4_async_grp5_evt(phba,
4203                                                  &cq_event->cqe.acqe_grp5);
4204                         break;
4205                 case LPFC_TRAILER_CODE_FC:
4206                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
4207                         break;
4208                 case LPFC_TRAILER_CODE_SLI:
4209                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
4210                         break;
4211                 default:
4212                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4213                                         "1804 Invalid asynchrous event code: "
4214                                         "x%x\n", bf_get(lpfc_trailer_code,
4215                                         &cq_event->cqe.mcqe_cmpl));
4216                         break;
4217                 }
4218                 /* Free the completion event processed to the free pool */
4219                 lpfc_sli4_cq_event_release(phba, cq_event);
4220         }
4221 }
4222
4223 /**
4224  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
4225  * @phba: pointer to lpfc hba data structure.
4226  *
4227  * This routine is invoked by the worker thread to process FCF table
4228  * rediscovery pending completion event.
4229  **/
4230 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
4231 {
4232         int rc;
4233
4234         spin_lock_irq(&phba->hbalock);
4235         /* Clear FCF rediscovery timeout event */
4236         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
4237         /* Clear driver fast failover FCF record flag */
4238         phba->fcf.failover_rec.flag = 0;
4239         /* Set state for FCF fast failover */
4240         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
4241         spin_unlock_irq(&phba->hbalock);
4242
4243         /* Scan FCF table from the first entry to re-discover SAN */
4244         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
4245                         "2777 Start post-quiescent FCF table scan\n");
4246         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
4247         if (rc)
4248                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
4249                                 "2747 Issue FCF scan read FCF mailbox "
4250                                 "command failed 0x%x\n", rc);
4251 }
4252
4253 /**
4254  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
4255  * @phba: pointer to lpfc hba data structure.
4256  * @dev_grp: The HBA PCI-Device group number.
4257  *
4258  * This routine is invoked to set up the per HBA PCI-Device group function
4259  * API jump table entries.
4260  *
4261  * Return: 0 if success, otherwise -ENODEV
4262  **/
4263 int
4264 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4265 {
4266         int rc;
4267
4268         /* Set up lpfc PCI-device group */
4269         phba->pci_dev_grp = dev_grp;
4270
4271         /* The LPFC_PCI_DEV_OC uses SLI4 */
4272         if (dev_grp == LPFC_PCI_DEV_OC)
4273                 phba->sli_rev = LPFC_SLI_REV4;
4274
4275         /* Set up device INIT API function jump table */
4276         rc = lpfc_init_api_table_setup(phba, dev_grp);
4277         if (rc)
4278                 return -ENODEV;
4279         /* Set up SCSI API function jump table */
4280         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
4281         if (rc)
4282                 return -ENODEV;
4283         /* Set up SLI API function jump table */
4284         rc = lpfc_sli_api_table_setup(phba, dev_grp);
4285         if (rc)
4286                 return -ENODEV;
4287         /* Set up MBOX API function jump table */
4288         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
4289         if (rc)
4290                 return -ENODEV;
4291
4292         return 0;
4293 }
4294
4295 /**
4296  * lpfc_log_intr_mode - Log the active interrupt mode
4297  * @phba: pointer to lpfc hba data structure.
4298  * @intr_mode: active interrupt mode adopted.
4299  *
4300  * This routine it invoked to log the currently used active interrupt mode
4301  * to the device.
4302  **/
4303 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
4304 {
4305         switch (intr_mode) {
4306         case 0:
4307                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4308                                 "0470 Enable INTx interrupt mode.\n");
4309                 break;
4310         case 1:
4311                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4312                                 "0481 Enabled MSI interrupt mode.\n");
4313                 break;
4314         case 2:
4315                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4316                                 "0480 Enabled MSI-X interrupt mode.\n");
4317                 break;
4318         default:
4319                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4320                                 "0482 Illegal interrupt mode.\n");
4321                 break;
4322         }
4323         return;
4324 }
4325
4326 /**
4327  * lpfc_enable_pci_dev - Enable a generic PCI device.
4328  * @phba: pointer to lpfc hba data structure.
4329  *
4330  * This routine is invoked to enable the PCI device that is common to all
4331  * PCI devices.
4332  *
4333  * Return codes
4334  *      0 - successful
4335  *      other values - error
4336  **/
4337 static int
4338 lpfc_enable_pci_dev(struct lpfc_hba *phba)
4339 {
4340         struct pci_dev *pdev;
4341         int bars = 0;
4342
4343         /* Obtain PCI device reference */
4344         if (!phba->pcidev)
4345                 goto out_error;
4346         else
4347                 pdev = phba->pcidev;
4348         /* Select PCI BARs */
4349         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4350         /* Enable PCI device */
4351         if (pci_enable_device_mem(pdev))
4352                 goto out_error;
4353         /* Request PCI resource for the device */
4354         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
4355                 goto out_disable_device;
4356         /* Set up device as PCI master and save state for EEH */
4357         pci_set_master(pdev);
4358         pci_try_set_mwi(pdev);
4359         pci_save_state(pdev);
4360
4361         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
4362         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
4363                 pdev->needs_freset = 1;
4364
4365         return 0;
4366
4367 out_disable_device:
4368         pci_disable_device(pdev);
4369 out_error:
4370         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4371                         "1401 Failed to enable pci device, bars:x%x\n", bars);
4372         return -ENODEV;
4373 }
4374
4375 /**
4376  * lpfc_disable_pci_dev - Disable a generic PCI device.
4377  * @phba: pointer to lpfc hba data structure.
4378  *
4379  * This routine is invoked to disable the PCI device that is common to all
4380  * PCI devices.
4381  **/
4382 static void
4383 lpfc_disable_pci_dev(struct lpfc_hba *phba)
4384 {
4385         struct pci_dev *pdev;
4386         int bars;
4387
4388         /* Obtain PCI device reference */
4389         if (!phba->pcidev)
4390                 return;
4391         else
4392                 pdev = phba->pcidev;
4393         /* Select PCI BARs */
4394         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4395         /* Release PCI resource and disable PCI device */
4396         pci_release_selected_regions(pdev, bars);
4397         pci_disable_device(pdev);
4398         /* Null out PCI private reference to driver */
4399         pci_set_drvdata(pdev, NULL);
4400
4401         return;
4402 }
4403
4404 /**
4405  * lpfc_reset_hba - Reset a hba
4406  * @phba: pointer to lpfc hba data structure.
4407  *
4408  * This routine is invoked to reset a hba device. It brings the HBA
4409  * offline, performs a board restart, and then brings the board back
4410  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4411  * on outstanding mailbox commands.
4412  **/
4413 void
4414 lpfc_reset_hba(struct lpfc_hba *phba)
4415 {
4416         /* If resets are disabled then set error state and return. */
4417         if (!phba->cfg_enable_hba_reset) {
4418                 phba->link_state = LPFC_HBA_ERROR;
4419                 return;
4420         }
4421         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
4422         lpfc_offline(phba);
4423         lpfc_sli_brdrestart(phba);
4424         lpfc_online(phba);
4425         lpfc_unblock_mgmt_io(phba);
4426 }
4427
4428 /**
4429  * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions
4430  * @phba: pointer to lpfc hba data structure.
4431  *
4432  * This function enables the PCI SR-IOV virtual functions to a physical
4433  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4434  * enable the number of virtual functions to the physical function. As
4435  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4436  * API call does not considered as an error condition for most of the device.
4437  **/
4438 uint16_t
4439 lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba)
4440 {
4441         struct pci_dev *pdev = phba->pcidev;
4442         uint16_t nr_virtfn;
4443         int pos;
4444
4445         pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV);
4446         if (pos == 0)
4447                 return 0;
4448
4449         pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn);
4450         return nr_virtfn;
4451 }
4452
4453 /**
4454  * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions
4455  * @phba: pointer to lpfc hba data structure.
4456  * @nr_vfn: number of virtual functions to be enabled.
4457  *
4458  * This function enables the PCI SR-IOV virtual functions to a physical
4459  * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to
4460  * enable the number of virtual functions to the physical function. As
4461  * not all devices support SR-IOV, the return code from the pci_enable_sriov()
4462  * API call does not considered as an error condition for most of the device.
4463  **/
4464 int
4465 lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn)
4466 {
4467         struct pci_dev *pdev = phba->pcidev;
4468         uint16_t max_nr_vfn;
4469         int rc;
4470
4471         max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba);
4472         if (nr_vfn > max_nr_vfn) {
4473                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4474                                 "3057 Requested vfs (%d) greater than "
4475                                 "supported vfs (%d)", nr_vfn, max_nr_vfn);
4476                 return -EINVAL;
4477         }
4478
4479         rc = pci_enable_sriov(pdev, nr_vfn);
4480         if (rc) {
4481                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4482                                 "2806 Failed to enable sriov on this device "
4483                                 "with vfn number nr_vf:%d, rc:%d\n",
4484                                 nr_vfn, rc);
4485         } else
4486                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4487                                 "2807 Successful enable sriov on this device "
4488                                 "with vfn number nr_vf:%d\n", nr_vfn);
4489         return rc;
4490 }
4491
4492 /**
4493  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4494  * @phba: pointer to lpfc hba data structure.
4495  *
4496  * This routine is invoked to set up the driver internal resources specific to
4497  * support the SLI-3 HBA device it attached to.
4498  *
4499  * Return codes
4500  *      0 - successful
4501  *      other values - error
4502  **/
4503 static int
4504 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4505 {
4506         struct lpfc_sli *psli;
4507         int rc;
4508
4509         /*
4510          * Initialize timers used by driver
4511          */
4512
4513         /* Heartbeat timer */
4514         init_timer(&phba->hb_tmofunc);
4515         phba->hb_tmofunc.function = lpfc_hb_timeout;
4516         phba->hb_tmofunc.data = (unsigned long)phba;
4517
4518         psli = &phba->sli;
4519         /* MBOX heartbeat timer */
4520         init_timer(&psli->mbox_tmo);
4521         psli->mbox_tmo.function = lpfc_mbox_timeout;
4522         psli->mbox_tmo.data = (unsigned long) phba;
4523         /* FCP polling mode timer */
4524         init_timer(&phba->fcp_poll_timer);
4525         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4526         phba->fcp_poll_timer.data = (unsigned long) phba;
4527         /* Fabric block timer */
4528         init_timer(&phba->fabric_block_timer);
4529         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4530         phba->fabric_block_timer.data = (unsigned long) phba;
4531         /* EA polling mode timer */
4532         init_timer(&phba->eratt_poll);
4533         phba->eratt_poll.function = lpfc_poll_eratt;
4534         phba->eratt_poll.data = (unsigned long) phba;
4535
4536         /* Host attention work mask setup */
4537         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4538         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4539
4540         /* Get all the module params for configuring this host */
4541         lpfc_get_cfgparam(phba);
4542         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4543                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4544                 /* check for menlo minimum sg count */
4545                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4546                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4547         }
4548
4549         /*
4550          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4551          * used to create the sg_dma_buf_pool must be dynamically calculated.
4552          * 2 segments are added since the IOCB needs a command and response bde.
4553          */
4554         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4555                 sizeof(struct fcp_rsp) +
4556                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4557
4558         if (phba->cfg_enable_bg) {
4559                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4560                 phba->cfg_sg_dma_buf_size +=
4561                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4562         }
4563
4564         /* Also reinitialize the host templates with new values. */
4565         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4566         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4567
4568         phba->max_vpi = LPFC_MAX_VPI;
4569         /* This will be set to correct value after config_port mbox */
4570         phba->max_vports = 0;
4571
4572         /*
4573          * Initialize the SLI Layer to run with lpfc HBAs.
4574          */
4575         lpfc_sli_setup(phba);
4576         lpfc_sli_queue_setup(phba);
4577
4578         /* Allocate device driver memory */
4579         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4580                 return -ENOMEM;
4581
4582         /*
4583          * Enable sr-iov virtual functions if supported and configured
4584          * through the module parameter.
4585          */
4586         if (phba->cfg_sriov_nr_virtfn > 0) {
4587                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4588                                                  phba->cfg_sriov_nr_virtfn);
4589                 if (rc) {
4590                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4591                                         "2808 Requested number of SR-IOV "
4592                                         "virtual functions (%d) is not "
4593                                         "supported\n",
4594                                         phba->cfg_sriov_nr_virtfn);
4595                         phba->cfg_sriov_nr_virtfn = 0;
4596                 }
4597         }
4598
4599         return 0;
4600 }
4601
4602 /**
4603  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4604  * @phba: pointer to lpfc hba data structure.
4605  *
4606  * This routine is invoked to unset the driver internal resources set up
4607  * specific for supporting the SLI-3 HBA device it attached to.
4608  **/
4609 static void
4610 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4611 {
4612         /* Free device driver memory allocated */
4613         lpfc_mem_free_all(phba);
4614
4615         return;
4616 }
4617
4618 /**
4619  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4620  * @phba: pointer to lpfc hba data structure.
4621  *
4622  * This routine is invoked to set up the driver internal resources specific to
4623  * support the SLI-4 HBA device it attached to.
4624  *
4625  * Return codes
4626  *      0 - successful
4627  *      other values - error
4628  **/
4629 static int
4630 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4631 {
4632         struct lpfc_sli *psli;
4633         LPFC_MBOXQ_t *mboxq;
4634         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4635         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4636         struct lpfc_mqe *mqe;
4637         int longs, sli_family;
4638         int sges_per_segment;
4639
4640         /* Before proceed, wait for POST done and device ready */
4641         rc = lpfc_sli4_post_status_check(phba);
4642         if (rc)
4643                 return -ENODEV;
4644
4645         /*
4646          * Initialize timers used by driver
4647          */
4648
4649         /* Heartbeat timer */
4650         init_timer(&phba->hb_tmofunc);
4651         phba->hb_tmofunc.function = lpfc_hb_timeout;
4652         phba->hb_tmofunc.data = (unsigned long)phba;
4653         init_timer(&phba->rrq_tmr);
4654         phba->rrq_tmr.function = lpfc_rrq_timeout;
4655         phba->rrq_tmr.data = (unsigned long)phba;
4656
4657         psli = &phba->sli;
4658         /* MBOX heartbeat timer */
4659         init_timer(&psli->mbox_tmo);
4660         psli->mbox_tmo.function = lpfc_mbox_timeout;
4661         psli->mbox_tmo.data = (unsigned long) phba;
4662         /* Fabric block timer */
4663         init_timer(&phba->fabric_block_timer);
4664         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4665         phba->fabric_block_timer.data = (unsigned long) phba;
4666         /* EA polling mode timer */
4667         init_timer(&phba->eratt_poll);
4668         phba->eratt_poll.function = lpfc_poll_eratt;
4669         phba->eratt_poll.data = (unsigned long) phba;
4670         /* FCF rediscover timer */
4671         init_timer(&phba->fcf.redisc_wait);
4672         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4673         phba->fcf.redisc_wait.data = (unsigned long)phba;
4674
4675         /*
4676          * Control structure for handling external multi-buffer mailbox
4677          * command pass-through.
4678          */
4679         memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0,
4680                 sizeof(struct lpfc_mbox_ext_buf_ctx));
4681         INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list);
4682
4683         /*
4684          * We need to do a READ_CONFIG mailbox command here before
4685          * calling lpfc_get_cfgparam. For VFs this will report the
4686          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4687          * All of the resources allocated
4688          * for this Port are tied to these values.
4689          */
4690         /* Get all the module params for configuring this host */
4691         lpfc_get_cfgparam(phba);
4692         phba->max_vpi = LPFC_MAX_VPI;
4693         /* This will be set to correct value after the read_config mbox */
4694         phba->max_vports = 0;
4695
4696         /* Program the default value of vlan_id and fc_map */
4697         phba->valid_vlan = 0;
4698         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4699         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4700         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4701
4702         /* With BlockGuard we can have multiple SGEs per Data Segemnt */
4703         sges_per_segment = 1;
4704         if (phba->cfg_enable_bg)
4705                 sges_per_segment = 2;
4706
4707         /*
4708          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4709          * used to create the sg_dma_buf_pool must be dynamically calculated.
4710          * 2 segments are added since the IOCB needs a command and response bde.
4711          * To insure that the scsi sgl does not cross a 4k page boundary only
4712          * sgl sizes of must be a power of 2.
4713          */
4714         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4715                     (((phba->cfg_sg_seg_cnt * sges_per_segment) + 2) *
4716                     sizeof(struct sli4_sge)));
4717
4718         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4719         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4720         switch (sli_family) {
4721         case LPFC_SLI_INTF_FAMILY_BE2:
4722         case LPFC_SLI_INTF_FAMILY_BE3:
4723                 /* There is a single hint for BE - 2 pages per BPL. */
4724                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4725                     LPFC_SLI_INTF_SLI_HINT1_1)
4726                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4727                 break;
4728         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4729         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4730         default:
4731                 break;
4732         }
4733
4734         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4735              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4736              dma_buf_size = dma_buf_size << 1)
4737                 ;
4738         if (dma_buf_size == max_buf_size)
4739                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4740                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4741                         (2 * sizeof(struct sli4_sge))) /
4742                                 sizeof(struct sli4_sge);
4743         phba->cfg_sg_dma_buf_size = dma_buf_size;
4744
4745         /* Initialize buffer queue management fields */
4746         hbq_count = lpfc_sli_hbq_count();
4747         for (i = 0; i < hbq_count; ++i)
4748                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4749         INIT_LIST_HEAD(&phba->rb_pend_list);
4750         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4751         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4752
4753         /*
4754          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4755          */
4756         /* Initialize the Abort scsi buffer list used by driver */
4757         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4758         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4759         /* This abort list used by worker thread */
4760         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4761
4762         /*
4763          * Initialize driver internal slow-path work queues
4764          */
4765
4766         /* Driver internel slow-path CQ Event pool */
4767         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4768         /* Response IOCB work queue list */
4769         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4770         /* Asynchronous event CQ Event work queue list */
4771         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4772         /* Fast-path XRI aborted CQ Event work queue list */
4773         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4774         /* Slow-path XRI aborted CQ Event work queue list */
4775         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4776         /* Receive queue CQ Event work queue list */
4777         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4778
4779         /* Initialize extent block lists. */
4780         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list);
4781         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list);
4782         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list);
4783         INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list);
4784
4785         /* Initialize the driver internal SLI layer lists. */
4786         lpfc_sli_setup(phba);
4787         lpfc_sli_queue_setup(phba);
4788
4789         /* Allocate device driver memory */
4790         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4791         if (rc)
4792                 return -ENOMEM;
4793
4794         /* IF Type 2 ports get initialized now. */
4795         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4796             LPFC_SLI_INTF_IF_TYPE_2) {
4797                 rc = lpfc_pci_function_reset(phba);
4798                 if (unlikely(rc))
4799                         return -ENODEV;
4800         }
4801
4802         /* Create the bootstrap mailbox command */
4803         rc = lpfc_create_bootstrap_mbox(phba);
4804         if (unlikely(rc))
4805                 goto out_free_mem;
4806
4807         /* Set up the host's endian order with the device. */
4808         rc = lpfc_setup_endian_order(phba);
4809         if (unlikely(rc))
4810                 goto out_free_bsmbx;
4811
4812         /* Set up the hba's configuration parameters. */
4813         rc = lpfc_sli4_read_config(phba);
4814         if (unlikely(rc))
4815                 goto out_free_bsmbx;
4816
4817         /* IF Type 0 ports get initialized now. */
4818         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4819             LPFC_SLI_INTF_IF_TYPE_0) {
4820                 rc = lpfc_pci_function_reset(phba);
4821                 if (unlikely(rc))
4822                         goto out_free_bsmbx;
4823         }
4824
4825         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4826                                                        GFP_KERNEL);
4827         if (!mboxq) {
4828                 rc = -ENOMEM;
4829                 goto out_free_bsmbx;
4830         }
4831
4832         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4833         lpfc_supported_pages(mboxq);
4834         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4835         if (!rc) {
4836                 mqe = &mboxq->u.mqe;
4837                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4838                        LPFC_MAX_SUPPORTED_PAGES);
4839                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4840                         switch (pn_page[i]) {
4841                         case LPFC_SLI4_PARAMETERS:
4842                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4843                                 break;
4844                         default:
4845                                 break;
4846                         }
4847                 }
4848                 /* Read the port's SLI4 Parameters capabilities if supported. */
4849                 if (phba->sli4_hba.pc_sli4_params.supported)
4850                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4851                 if (rc) {
4852                         mempool_free(mboxq, phba->mbox_mem_pool);
4853                         rc = -EIO;
4854                         goto out_free_bsmbx;
4855                 }
4856         }
4857         /*
4858          * Get sli4 parameters that override parameters from Port capabilities.
4859          * If this call fails, it isn't critical unless the SLI4 parameters come
4860          * back in conflict.
4861          */
4862         rc = lpfc_get_sli4_parameters(phba, mboxq);
4863         if (rc) {
4864                 if (phba->sli4_hba.extents_in_use &&
4865                     phba->sli4_hba.rpi_hdrs_in_use) {
4866                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4867                                 "2999 Unsupported SLI4 Parameters "
4868                                 "Extents and RPI headers enabled.\n");
4869                         goto out_free_bsmbx;
4870                 }
4871         }
4872         mempool_free(mboxq, phba->mbox_mem_pool);
4873         /* Verify all the SLI4 queues */
4874         rc = lpfc_sli4_queue_verify(phba);
4875         if (rc)
4876                 goto out_free_bsmbx;
4877
4878         /* Create driver internal CQE event pool */
4879         rc = lpfc_sli4_cq_event_pool_create(phba);
4880         if (rc)
4881                 goto out_free_bsmbx;
4882
4883         /* Initialize sgl lists per host */
4884         lpfc_init_sgl_list(phba);
4885
4886         /* Allocate and initialize active sgl array */
4887         rc = lpfc_init_active_sgl_array(phba);
4888         if (rc) {
4889                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4890                                 "1430 Failed to initialize sgl list.\n");
4891                 goto out_destroy_cq_event_pool;
4892         }
4893         rc = lpfc_sli4_init_rpi_hdrs(phba);
4894         if (rc) {
4895                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4896                                 "1432 Failed to initialize rpi headers.\n");
4897                 goto out_free_active_sgl;
4898         }
4899
4900         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4901         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4902         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4903                                          GFP_KERNEL);
4904         if (!phba->fcf.fcf_rr_bmask) {
4905                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4906                                 "2759 Failed allocate memory for FCF round "
4907                                 "robin failover bmask\n");
4908                 rc = -ENOMEM;
4909                 goto out_remove_rpi_hdrs;
4910         }
4911
4912         /*
4913          * The cfg_fcp_eq_count can be zero whenever there is exactly one
4914          * interrupt vector.  This is not an error
4915          */
4916         if (phba->cfg_fcp_eq_count) {
4917                 phba->sli4_hba.fcp_eq_hdl =
4918                                 kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4919                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4920                 if (!phba->sli4_hba.fcp_eq_hdl) {
4921                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4922                                         "2572 Failed allocate memory for "
4923                                         "fast-path per-EQ handle array\n");
4924                         rc = -ENOMEM;
4925                         goto out_free_fcf_rr_bmask;
4926                 }
4927         }
4928
4929         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4930                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4931         if (!phba->sli4_hba.msix_entries) {
4932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4933                                 "2573 Failed allocate memory for msi-x "
4934                                 "interrupt vector entries\n");
4935                 rc = -ENOMEM;
4936                 goto out_free_fcp_eq_hdl;
4937         }
4938
4939         /*
4940          * Enable sr-iov virtual functions if supported and configured
4941          * through the module parameter.
4942          */
4943         if (phba->cfg_sriov_nr_virtfn > 0) {
4944                 rc = lpfc_sli_probe_sriov_nr_virtfn(phba,
4945                                                  phba->cfg_sriov_nr_virtfn);
4946                 if (rc) {
4947                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4948                                         "3020 Requested number of SR-IOV "
4949                                         "virtual functions (%d) is not "
4950                                         "supported\n",
4951                                         phba->cfg_sriov_nr_virtfn);
4952                         phba->cfg_sriov_nr_virtfn = 0;
4953                 }
4954         }
4955
4956         return 0;
4957
4958 out_free_fcp_eq_hdl:
4959         kfree(phba->sli4_hba.fcp_eq_hdl);
4960 out_free_fcf_rr_bmask:
4961         kfree(phba->fcf.fcf_rr_bmask);
4962 out_remove_rpi_hdrs:
4963         lpfc_sli4_remove_rpi_hdrs(phba);
4964 out_free_active_sgl:
4965         lpfc_free_active_sgl(phba);
4966 out_destroy_cq_event_pool:
4967         lpfc_sli4_cq_event_pool_destroy(phba);
4968 out_free_bsmbx:
4969         lpfc_destroy_bootstrap_mbox(phba);
4970 out_free_mem:
4971         lpfc_mem_free(phba);
4972         return rc;
4973 }
4974
4975 /**
4976  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4977  * @phba: pointer to lpfc hba data structure.
4978  *
4979  * This routine is invoked to unset the driver internal resources set up
4980  * specific for supporting the SLI-4 HBA device it attached to.
4981  **/
4982 static void
4983 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4984 {
4985         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4986
4987         /* Free memory allocated for msi-x interrupt vector entries */
4988         kfree(phba->sli4_hba.msix_entries);
4989
4990         /* Free memory allocated for fast-path work queue handles */
4991         kfree(phba->sli4_hba.fcp_eq_hdl);
4992
4993         /* Free the allocated rpi headers. */
4994         lpfc_sli4_remove_rpi_hdrs(phba);
4995         lpfc_sli4_remove_rpis(phba);
4996
4997         /* Free eligible FCF index bmask */
4998         kfree(phba->fcf.fcf_rr_bmask);
4999
5000         /* Free the ELS sgl list */
5001         lpfc_free_active_sgl(phba);
5002         lpfc_free_els_sgl_list(phba);
5003
5004         /* Free the completion queue EQ event pool */
5005         lpfc_sli4_cq_event_release_all(phba);
5006         lpfc_sli4_cq_event_pool_destroy(phba);
5007
5008         /* Release resource identifiers. */
5009         lpfc_sli4_dealloc_resource_identifiers(phba);
5010
5011         /* Free the bsmbx region. */
5012         lpfc_destroy_bootstrap_mbox(phba);
5013
5014         /* Free the SLI Layer memory with SLI4 HBAs */
5015         lpfc_mem_free_all(phba);
5016
5017         /* Free the current connect table */
5018         list_for_each_entry_safe(conn_entry, next_conn_entry,
5019                 &phba->fcf_conn_rec_list, list) {
5020                 list_del_init(&conn_entry->list);
5021                 kfree(conn_entry);
5022         }
5023
5024         return;
5025 }
5026
5027 /**
5028  * lpfc_init_api_table_setup - Set up init api function jump table
5029  * @phba: The hba struct for which this call is being executed.
5030  * @dev_grp: The HBA PCI-Device group number.
5031  *
5032  * This routine sets up the device INIT interface API function jump table
5033  * in @phba struct.
5034  *
5035  * Returns: 0 - success, -ENODEV - failure.
5036  **/
5037 int
5038 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5039 {
5040         phba->lpfc_hba_init_link = lpfc_hba_init_link;
5041         phba->lpfc_hba_down_link = lpfc_hba_down_link;
5042         phba->lpfc_selective_reset = lpfc_selective_reset;
5043         switch (dev_grp) {
5044         case LPFC_PCI_DEV_LP:
5045                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
5046                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
5047                 phba->lpfc_stop_port = lpfc_stop_port_s3;
5048                 break;
5049         case LPFC_PCI_DEV_OC:
5050                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
5051                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
5052                 phba->lpfc_stop_port = lpfc_stop_port_s4;
5053                 break;
5054         default:
5055                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5056                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
5057                                 dev_grp);
5058                 return -ENODEV;
5059                 break;
5060         }
5061         return 0;
5062 }
5063
5064 /**
5065  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
5066  * @phba: pointer to lpfc hba data structure.
5067  *
5068  * This routine is invoked to set up the driver internal resources before the
5069  * device specific resource setup to support the HBA device it attached to.
5070  *
5071  * Return codes
5072  *      0 - successful
5073  *      other values - error
5074  **/
5075 static int
5076 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
5077 {
5078         /*
5079          * Driver resources common to all SLI revisions
5080          */
5081         atomic_set(&phba->fast_event_count, 0);
5082         spin_lock_init(&phba->hbalock);
5083
5084         /* Initialize ndlp management spinlock */
5085         spin_lock_init(&phba->ndlp_lock);
5086
5087         INIT_LIST_HEAD(&phba->port_list);
5088         INIT_LIST_HEAD(&phba->work_list);
5089         init_waitqueue_head(&phba->wait_4_mlo_m_q);
5090
5091         /* Initialize the wait queue head for the kernel thread */
5092         init_waitqueue_head(&phba->work_waitq);
5093
5094         /* Initialize the scsi buffer list used by driver for scsi IO */
5095         spin_lock_init(&phba->scsi_buf_list_lock);
5096         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
5097
5098         /* Initialize the fabric iocb list */
5099         INIT_LIST_HEAD(&phba->fabric_iocb_list);
5100
5101         /* Initialize list to save ELS buffers */
5102         INIT_LIST_HEAD(&phba->elsbuf);
5103
5104         /* Initialize FCF connection rec list */
5105         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
5106
5107         return 0;
5108 }
5109
5110 /**
5111  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
5112  * @phba: pointer to lpfc hba data structure.
5113  *
5114  * This routine is invoked to set up the driver internal resources after the
5115  * device specific resource setup to support the HBA device it attached to.
5116  *
5117  * Return codes
5118  *      0 - successful
5119  *      other values - error
5120  **/
5121 static int
5122 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
5123 {
5124         int error;
5125
5126         /* Startup the kernel thread for this host adapter. */
5127         phba->worker_thread = kthread_run(lpfc_do_work, phba,
5128                                           "lpfc_worker_%d", phba->brd_no);
5129         if (IS_ERR(phba->worker_thread)) {
5130                 error = PTR_ERR(phba->worker_thread);
5131                 return error;
5132         }
5133
5134         return 0;
5135 }
5136
5137 /**
5138  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
5139  * @phba: pointer to lpfc hba data structure.
5140  *
5141  * This routine is invoked to unset the driver internal resources set up after
5142  * the device specific resource setup for supporting the HBA device it
5143  * attached to.
5144  **/
5145 static void
5146 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
5147 {
5148         /* Stop kernel worker thread */
5149         kthread_stop(phba->worker_thread);
5150 }
5151
5152 /**
5153  * lpfc_free_iocb_list - Free iocb list.
5154  * @phba: pointer to lpfc hba data structure.
5155  *
5156  * This routine is invoked to free the driver's IOCB list and memory.
5157  **/
5158 static void
5159 lpfc_free_iocb_list(struct lpfc_hba *phba)
5160 {
5161         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
5162
5163         spin_lock_irq(&phba->hbalock);
5164         list_for_each_entry_safe(iocbq_entry, iocbq_next,
5165                                  &phba->lpfc_iocb_list, list) {
5166                 list_del(&iocbq_entry->list);
5167                 kfree(iocbq_entry);
5168                 phba->total_iocbq_bufs--;
5169         }
5170         spin_unlock_irq(&phba->hbalock);
5171
5172         return;
5173 }
5174
5175 /**
5176  * lpfc_init_iocb_list - Allocate and initialize iocb list.
5177  * @phba: pointer to lpfc hba data structure.
5178  *
5179  * This routine is invoked to allocate and initizlize the driver's IOCB
5180  * list and set up the IOCB tag array accordingly.
5181  *
5182  * Return codes
5183  *      0 - successful
5184  *      other values - error
5185  **/
5186 static int
5187 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
5188 {
5189         struct lpfc_iocbq *iocbq_entry = NULL;
5190         uint16_t iotag;
5191         int i;
5192
5193         /* Initialize and populate the iocb list per host.  */
5194         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
5195         for (i = 0; i < iocb_count; i++) {
5196                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
5197                 if (iocbq_entry == NULL) {
5198                         printk(KERN_ERR "%s: only allocated %d iocbs of "
5199                                 "expected %d count. Unloading driver.\n",
5200                                 __func__, i, LPFC_IOCB_LIST_CNT);
5201                         goto out_free_iocbq;
5202                 }
5203
5204                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
5205                 if (iotag == 0) {
5206                         kfree(iocbq_entry);
5207                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
5208                                 "Unloading driver.\n", __func__);
5209                         goto out_free_iocbq;
5210                 }
5211                 iocbq_entry->sli4_lxritag = NO_XRI;
5212                 iocbq_entry->sli4_xritag = NO_XRI;
5213
5214                 spin_lock_irq(&phba->hbalock);
5215                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
5216                 phba->total_iocbq_bufs++;
5217                 spin_unlock_irq(&phba->hbalock);
5218         }
5219
5220         return 0;
5221
5222 out_free_iocbq:
5223         lpfc_free_iocb_list(phba);
5224
5225         return -ENOMEM;
5226 }
5227
5228 /**
5229  * lpfc_free_sgl_list - Free a given sgl list.
5230  * @phba: pointer to lpfc hba data structure.
5231  * @sglq_list: pointer to the head of sgl list.
5232  *
5233  * This routine is invoked to free a give sgl list and memory.
5234  **/
5235 void
5236 lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list)
5237 {
5238         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
5239
5240         list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) {
5241                 list_del(&sglq_entry->list);
5242                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
5243                 kfree(sglq_entry);
5244         }
5245 }
5246
5247 /**
5248  * lpfc_free_els_sgl_list - Free els sgl list.
5249  * @phba: pointer to lpfc hba data structure.
5250  *
5251  * This routine is invoked to free the driver's els sgl list and memory.
5252  **/
5253 static void
5254 lpfc_free_els_sgl_list(struct lpfc_hba *phba)
5255 {
5256         LIST_HEAD(sglq_list);
5257
5258         /* Retrieve all els sgls from driver list */
5259         spin_lock_irq(&phba->hbalock);
5260         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
5261         spin_unlock_irq(&phba->hbalock);
5262
5263         /* Now free the sgl list */
5264         lpfc_free_sgl_list(phba, &sglq_list);
5265 }
5266
5267 /**
5268  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
5269  * @phba: pointer to lpfc hba data structure.
5270  *
5271  * This routine is invoked to allocate the driver's active sgl memory.
5272  * This array will hold the sglq_entry's for active IOs.
5273  **/
5274 static int
5275 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
5276 {
5277         int size;
5278         size = sizeof(struct lpfc_sglq *);
5279         size *= phba->sli4_hba.max_cfg_param.max_xri;
5280
5281         phba->sli4_hba.lpfc_sglq_active_list =
5282                 kzalloc(size, GFP_KERNEL);
5283         if (!phba->sli4_hba.lpfc_sglq_active_list)
5284                 return -ENOMEM;
5285         return 0;
5286 }
5287
5288 /**
5289  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
5290  * @phba: pointer to lpfc hba data structure.
5291  *
5292  * This routine is invoked to walk through the array of active sglq entries
5293  * and free all of the resources.
5294  * This is just a place holder for now.
5295  **/
5296 static void
5297 lpfc_free_active_sgl(struct lpfc_hba *phba)
5298 {
5299         kfree(phba->sli4_hba.lpfc_sglq_active_list);
5300 }
5301
5302 /**
5303  * lpfc_init_sgl_list - Allocate and initialize sgl list.
5304  * @phba: pointer to lpfc hba data structure.
5305  *
5306  * This routine is invoked to allocate and initizlize the driver's sgl
5307  * list and set up the sgl xritag tag array accordingly.
5308  *
5309  **/
5310 static void
5311 lpfc_init_sgl_list(struct lpfc_hba *phba)
5312 {
5313         /* Initialize and populate the sglq list per host/VF. */
5314         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
5315         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
5316
5317         /* els xri-sgl book keeping */
5318         phba->sli4_hba.els_xri_cnt = 0;
5319
5320         /* scsi xri-buffer book keeping */
5321         phba->sli4_hba.scsi_xri_cnt = 0;
5322 }
5323
5324 /**
5325  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
5326  * @phba: pointer to lpfc hba data structure.
5327  *
5328  * This routine is invoked to post rpi header templates to the
5329  * port for those SLI4 ports that do not support extents.  This routine
5330  * posts a PAGE_SIZE memory region to the port to hold up to
5331  * PAGE_SIZE modulo 64 rpi context headers.  This is an initialization routine
5332  * and should be called only when interrupts are disabled.
5333  *
5334  * Return codes
5335  *      0 - successful
5336  *      -ERROR - otherwise.
5337  **/
5338 int
5339 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
5340 {
5341         int rc = 0;
5342         struct lpfc_rpi_hdr *rpi_hdr;
5343
5344         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
5345         if (!phba->sli4_hba.rpi_hdrs_in_use)
5346                 return rc;
5347         if (phba->sli4_hba.extents_in_use)
5348                 return -EIO;
5349
5350         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
5351         if (!rpi_hdr) {
5352                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5353                                 "0391 Error during rpi post operation\n");
5354                 lpfc_sli4_remove_rpis(phba);
5355                 rc = -ENODEV;
5356         }
5357
5358         return rc;
5359 }
5360
5361 /**
5362  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
5363  * @phba: pointer to lpfc hba data structure.
5364  *
5365  * This routine is invoked to allocate a single 4KB memory region to
5366  * support rpis and stores them in the phba.  This single region
5367  * provides support for up to 64 rpis.  The region is used globally
5368  * by the device.
5369  *
5370  * Returns:
5371  *   A valid rpi hdr on success.
5372  *   A NULL pointer on any failure.
5373  **/
5374 struct lpfc_rpi_hdr *
5375 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
5376 {
5377         uint16_t rpi_limit, curr_rpi_range;
5378         struct lpfc_dmabuf *dmabuf;
5379         struct lpfc_rpi_hdr *rpi_hdr;
5380         uint32_t rpi_count;
5381
5382         /*
5383          * If the SLI4 port supports extents, posting the rpi header isn't
5384          * required.  Set the expected maximum count and let the actual value
5385          * get set when extents are fully allocated.
5386          */
5387         if (!phba->sli4_hba.rpi_hdrs_in_use)
5388                 return NULL;
5389         if (phba->sli4_hba.extents_in_use)
5390                 return NULL;
5391
5392         /* The limit on the logical index is just the max_rpi count. */
5393         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
5394         phba->sli4_hba.max_cfg_param.max_rpi - 1;
5395
5396         spin_lock_irq(&phba->hbalock);
5397         /*
5398          * Establish the starting RPI in this header block.  The starting
5399          * rpi is normalized to a zero base because the physical rpi is
5400          * port based.
5401          */
5402         curr_rpi_range = phba->sli4_hba.next_rpi;
5403         spin_unlock_irq(&phba->hbalock);
5404
5405         /*
5406          * The port has a limited number of rpis. The increment here
5407          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
5408          * and to allow the full max_rpi range per port.
5409          */
5410         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
5411                 rpi_count = rpi_limit - curr_rpi_range;
5412         else
5413                 rpi_count = LPFC_RPI_HDR_COUNT;
5414
5415         if (!rpi_count)
5416                 return NULL;
5417         /*
5418          * First allocate the protocol header region for the port.  The
5419          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
5420          */
5421         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5422         if (!dmabuf)
5423                 return NULL;
5424
5425         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5426                                           LPFC_HDR_TEMPLATE_SIZE,
5427                                           &dmabuf->phys,
5428                                           GFP_KERNEL);
5429         if (!dmabuf->virt) {
5430                 rpi_hdr = NULL;
5431                 goto err_free_dmabuf;
5432         }
5433
5434         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
5435         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
5436                 rpi_hdr = NULL;
5437                 goto err_free_coherent;
5438         }
5439
5440         /* Save the rpi header data for cleanup later. */
5441         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
5442         if (!rpi_hdr)
5443                 goto err_free_coherent;
5444
5445         rpi_hdr->dmabuf = dmabuf;
5446         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
5447         rpi_hdr->page_count = 1;
5448         spin_lock_irq(&phba->hbalock);
5449
5450         /* The rpi_hdr stores the logical index only. */
5451         rpi_hdr->start_rpi = curr_rpi_range;
5452         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5453
5454         /*
5455          * The next_rpi stores the next logical module-64 rpi value used
5456          * to post physical rpis in subsequent rpi postings.
5457          */
5458         phba->sli4_hba.next_rpi += rpi_count;
5459         spin_unlock_irq(&phba->hbalock);
5460         return rpi_hdr;
5461
5462  err_free_coherent:
5463         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5464                           dmabuf->virt, dmabuf->phys);
5465  err_free_dmabuf:
5466         kfree(dmabuf);
5467         return NULL;
5468 }
5469
5470 /**
5471  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5472  * @phba: pointer to lpfc hba data structure.
5473  *
5474  * This routine is invoked to remove all memory resources allocated
5475  * to support rpis for SLI4 ports not supporting extents. This routine
5476  * presumes the caller has released all rpis consumed by fabric or port
5477  * logins and is prepared to have the header pages removed.
5478  **/
5479 void
5480 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5481 {
5482         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5483
5484         if (!phba->sli4_hba.rpi_hdrs_in_use)
5485                 goto exit;
5486
5487         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5488                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5489                 list_del(&rpi_hdr->list);
5490                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5491                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5492                 kfree(rpi_hdr->dmabuf);
5493                 kfree(rpi_hdr);
5494         }
5495  exit:
5496         /* There are no rpis available to the port now. */
5497         phba->sli4_hba.next_rpi = 0;
5498 }
5499
5500 /**
5501  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5502  * @pdev: pointer to pci device data structure.
5503  *
5504  * This routine is invoked to allocate the driver hba data structure for an
5505  * HBA device. If the allocation is successful, the phba reference to the
5506  * PCI device data structure is set.
5507  *
5508  * Return codes
5509  *      pointer to @phba - successful
5510  *      NULL - error
5511  **/
5512 static struct lpfc_hba *
5513 lpfc_hba_alloc(struct pci_dev *pdev)
5514 {
5515         struct lpfc_hba *phba;
5516
5517         /* Allocate memory for HBA structure */
5518         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5519         if (!phba) {
5520                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5521                 return NULL;
5522         }
5523
5524         /* Set reference to PCI device in HBA structure */
5525         phba->pcidev = pdev;
5526
5527         /* Assign an unused board number */
5528         phba->brd_no = lpfc_get_instance();
5529         if (phba->brd_no < 0) {
5530                 kfree(phba);
5531                 return NULL;
5532         }
5533
5534         spin_lock_init(&phba->ct_ev_lock);
5535         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5536
5537         return phba;
5538 }
5539
5540 /**
5541  * lpfc_hba_free - Free driver hba data structure with a device.
5542  * @phba: pointer to lpfc hba data structure.
5543  *
5544  * This routine is invoked to free the driver hba data structure with an
5545  * HBA device.
5546  **/
5547 static void
5548 lpfc_hba_free(struct lpfc_hba *phba)
5549 {
5550         /* Release the driver assigned board number */
5551         idr_remove(&lpfc_hba_index, phba->brd_no);
5552
5553         kfree(phba);
5554         return;
5555 }
5556
5557 /**
5558  * lpfc_create_shost - Create hba physical port with associated scsi host.
5559  * @phba: pointer to lpfc hba data structure.
5560  *
5561  * This routine is invoked to create HBA physical port and associate a SCSI
5562  * host with it.
5563  *
5564  * Return codes
5565  *      0 - successful
5566  *      other values - error
5567  **/
5568 static int
5569 lpfc_create_shost(struct lpfc_hba *phba)
5570 {
5571         struct lpfc_vport *vport;
5572         struct Scsi_Host  *shost;
5573
5574         /* Initialize HBA FC structure */
5575         phba->fc_edtov = FF_DEF_EDTOV;
5576         phba->fc_ratov = FF_DEF_RATOV;
5577         phba->fc_altov = FF_DEF_ALTOV;
5578         phba->fc_arbtov = FF_DEF_ARBTOV;
5579
5580         atomic_set(&phba->sdev_cnt, 0);
5581         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5582         if (!vport)
5583                 return -ENODEV;
5584
5585         shost = lpfc_shost_from_vport(vport);
5586         phba->pport = vport;
5587         lpfc_debugfs_initialize(vport);
5588         /* Put reference to SCSI host to driver's device private data */
5589         pci_set_drvdata(phba->pcidev, shost);
5590
5591         return 0;
5592 }
5593
5594 /**
5595  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5596  * @phba: pointer to lpfc hba data structure.
5597  *
5598  * This routine is invoked to destroy HBA physical port and the associated
5599  * SCSI host.
5600  **/
5601 static void
5602 lpfc_destroy_shost(struct lpfc_hba *phba)
5603 {
5604         struct lpfc_vport *vport = phba->pport;
5605
5606         /* Destroy physical port that associated with the SCSI host */
5607         destroy_port(vport);
5608
5609         return;
5610 }
5611
5612 /**
5613  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5614  * @phba: pointer to lpfc hba data structure.
5615  * @shost: the shost to be used to detect Block guard settings.
5616  *
5617  * This routine sets up the local Block guard protocol settings for @shost.
5618  * This routine also allocates memory for debugging bg buffers.
5619  **/
5620 static void
5621 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5622 {
5623         uint32_t old_mask;
5624         uint32_t old_guard;
5625
5626         int pagecnt = 10;
5627         if (lpfc_prot_mask && lpfc_prot_guard) {
5628                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5629                                 "1478 Registering BlockGuard with the "
5630                                 "SCSI layer\n");
5631
5632                 old_mask = lpfc_prot_mask;
5633                 old_guard = lpfc_prot_guard;
5634
5635                 /* Only allow supported values */
5636                 lpfc_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION |
5637                         SHOST_DIX_TYPE0_PROTECTION |
5638                         SHOST_DIX_TYPE1_PROTECTION);
5639                 lpfc_prot_guard &= (SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC);
5640
5641                 /* DIF Type 1 protection for profiles AST1/C1 is end to end */
5642                 if (lpfc_prot_mask == SHOST_DIX_TYPE1_PROTECTION)
5643                         lpfc_prot_mask |= SHOST_DIF_TYPE1_PROTECTION;
5644
5645                 if (lpfc_prot_mask && lpfc_prot_guard) {
5646                         if ((old_mask != lpfc_prot_mask) ||
5647                                 (old_guard != lpfc_prot_guard))
5648                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5649                                         "1475 Registering BlockGuard with the "
5650                                         "SCSI layer: mask %d  guard %d\n",
5651                                         lpfc_prot_mask, lpfc_prot_guard);
5652
5653                         scsi_host_set_prot(shost, lpfc_prot_mask);
5654                         scsi_host_set_guard(shost, lpfc_prot_guard);
5655                 } else
5656                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5657                                 "1479 Not Registering BlockGuard with the SCSI "
5658                                 "layer, Bad protection parameters: %d %d\n",
5659                                 old_mask, old_guard);
5660         }
5661
5662         if (!_dump_buf_data) {
5663                 while (pagecnt) {
5664                         spin_lock_init(&_dump_buf_lock);
5665                         _dump_buf_data =
5666                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5667                         if (_dump_buf_data) {
5668                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5669                                         "9043 BLKGRD: allocated %d pages for "
5670                                        "_dump_buf_data at 0x%p\n",
5671                                        (1 << pagecnt), _dump_buf_data);
5672                                 _dump_buf_data_order = pagecnt;
5673                                 memset(_dump_buf_data, 0,
5674                                        ((1 << PAGE_SHIFT) << pagecnt));
5675                                 break;
5676                         } else
5677                                 --pagecnt;
5678                 }
5679                 if (!_dump_buf_data_order)
5680                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5681                                 "9044 BLKGRD: ERROR unable to allocate "
5682                                "memory for hexdump\n");
5683         } else
5684                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5685                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5686                        "\n", _dump_buf_data);
5687         if (!_dump_buf_dif) {
5688                 while (pagecnt) {
5689                         _dump_buf_dif =
5690                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5691                         if (_dump_buf_dif) {
5692                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5693                                         "9046 BLKGRD: allocated %d pages for "
5694                                        "_dump_buf_dif at 0x%p\n",
5695                                        (1 << pagecnt), _dump_buf_dif);
5696                                 _dump_buf_dif_order = pagecnt;
5697                                 memset(_dump_buf_dif, 0,
5698                                        ((1 << PAGE_SHIFT) << pagecnt));
5699                                 break;
5700                         } else
5701                                 --pagecnt;
5702                 }
5703                 if (!_dump_buf_dif_order)
5704                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5705                         "9047 BLKGRD: ERROR unable to allocate "
5706                                "memory for hexdump\n");
5707         } else
5708                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5709                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5710                        _dump_buf_dif);
5711 }
5712
5713 /**
5714  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5715  * @phba: pointer to lpfc hba data structure.
5716  *
5717  * This routine is invoked to perform all the necessary post initialization
5718  * setup for the device.
5719  **/
5720 static void
5721 lpfc_post_init_setup(struct lpfc_hba *phba)
5722 {
5723         struct Scsi_Host  *shost;
5724         struct lpfc_adapter_event_header adapter_event;
5725
5726         /* Get the default values for Model Name and Description */
5727         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5728
5729         /*
5730          * hba setup may have changed the hba_queue_depth so we need to
5731          * adjust the value of can_queue.
5732          */
5733         shost = pci_get_drvdata(phba->pcidev);
5734         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5735         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5736                 lpfc_setup_bg(phba, shost);
5737
5738         lpfc_host_attrib_init(shost);
5739
5740         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5741                 spin_lock_irq(shost->host_lock);
5742                 lpfc_poll_start_timer(phba);
5743                 spin_unlock_irq(shost->host_lock);
5744         }
5745
5746         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5747                         "0428 Perform SCSI scan\n");
5748         /* Send board arrival event to upper layer */
5749         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5750         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5751         fc_host_post_vendor_event(shost, fc_get_event_number(),
5752                                   sizeof(adapter_event),
5753                                   (char *) &adapter_event,
5754                                   LPFC_NL_VENDOR_ID);
5755         return;
5756 }
5757
5758 /**
5759  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5760  * @phba: pointer to lpfc hba data structure.
5761  *
5762  * This routine is invoked to set up the PCI device memory space for device
5763  * with SLI-3 interface spec.
5764  *
5765  * Return codes
5766  *      0 - successful
5767  *      other values - error
5768  **/
5769 static int
5770 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5771 {
5772         struct pci_dev *pdev;
5773         unsigned long bar0map_len, bar2map_len;
5774         int i, hbq_count;
5775         void *ptr;
5776         int error = -ENODEV;
5777
5778         /* Obtain PCI device reference */
5779         if (!phba->pcidev)
5780                 return error;
5781         else
5782                 pdev = phba->pcidev;
5783
5784         /* Set the device DMA mask size */
5785         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5786          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5787                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5788                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5789                         return error;
5790                 }
5791         }
5792
5793         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5794          * required by each mapping.
5795          */
5796         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5797         bar0map_len = pci_resource_len(pdev, 0);
5798
5799         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5800         bar2map_len = pci_resource_len(pdev, 2);
5801
5802         /* Map HBA SLIM to a kernel virtual address. */
5803         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5804         if (!phba->slim_memmap_p) {
5805                 dev_printk(KERN_ERR, &pdev->dev,
5806                            "ioremap failed for SLIM memory.\n");
5807                 goto out;
5808         }
5809
5810         /* Map HBA Control Registers to a kernel virtual address. */
5811         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5812         if (!phba->ctrl_regs_memmap_p) {
5813                 dev_printk(KERN_ERR, &pdev->dev,
5814                            "ioremap failed for HBA control registers.\n");
5815                 goto out_iounmap_slim;
5816         }
5817
5818         /* Allocate memory for SLI-2 structures */
5819         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5820                                                SLI2_SLIM_SIZE,
5821                                                &phba->slim2p.phys,
5822                                                GFP_KERNEL);
5823         if (!phba->slim2p.virt)
5824                 goto out_iounmap;
5825
5826         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5827         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5828         phba->mbox_ext = (phba->slim2p.virt +
5829                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5830         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5831         phba->IOCBs = (phba->slim2p.virt +
5832                        offsetof(struct lpfc_sli2_slim, IOCBs));
5833
5834         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5835                                                  lpfc_sli_hbq_size(),
5836                                                  &phba->hbqslimp.phys,
5837                                                  GFP_KERNEL);
5838         if (!phba->hbqslimp.virt)
5839                 goto out_free_slim;
5840
5841         hbq_count = lpfc_sli_hbq_count();
5842         ptr = phba->hbqslimp.virt;
5843         for (i = 0; i < hbq_count; ++i) {
5844                 phba->hbqs[i].hbq_virt = ptr;
5845                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5846                 ptr += (lpfc_hbq_defs[i]->entry_count *
5847                         sizeof(struct lpfc_hbq_entry));
5848         }
5849         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5850         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5851
5852         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5853
5854         INIT_LIST_HEAD(&phba->rb_pend_list);
5855
5856         phba->MBslimaddr = phba->slim_memmap_p;
5857         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5858         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5859         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5860         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5861
5862         return 0;
5863
5864 out_free_slim:
5865         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5866                           phba->slim2p.virt, phba->slim2p.phys);
5867 out_iounmap:
5868         iounmap(phba->ctrl_regs_memmap_p);
5869 out_iounmap_slim:
5870         iounmap(phba->slim_memmap_p);
5871 out:
5872         return error;
5873 }
5874
5875 /**
5876  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5877  * @phba: pointer to lpfc hba data structure.
5878  *
5879  * This routine is invoked to unset the PCI device memory space for device
5880  * with SLI-3 interface spec.
5881  **/
5882 static void
5883 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5884 {
5885         struct pci_dev *pdev;
5886
5887         /* Obtain PCI device reference */
5888         if (!phba->pcidev)
5889                 return;
5890         else
5891                 pdev = phba->pcidev;
5892
5893         /* Free coherent DMA memory allocated */
5894         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5895                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5896         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5897                           phba->slim2p.virt, phba->slim2p.phys);
5898
5899         /* I/O memory unmap */
5900         iounmap(phba->ctrl_regs_memmap_p);
5901         iounmap(phba->slim_memmap_p);
5902
5903         return;
5904 }
5905
5906 /**
5907  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5908  * @phba: pointer to lpfc hba data structure.
5909  *
5910  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5911  * done and check status.
5912  *
5913  * Return 0 if successful, otherwise -ENODEV.
5914  **/
5915 int
5916 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5917 {
5918         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5919         struct lpfc_register reg_data;
5920         int i, port_error = 0;
5921         uint32_t if_type;
5922
5923         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5924         memset(&reg_data, 0, sizeof(reg_data));
5925         if (!phba->sli4_hba.PSMPHRregaddr)
5926                 return -ENODEV;
5927
5928         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5929         for (i = 0; i < 3000; i++) {
5930                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5931                         &portsmphr_reg.word0) ||
5932                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5933                         /* Port has a fatal POST error, break out */
5934                         port_error = -ENODEV;
5935                         break;
5936                 }
5937                 if (LPFC_POST_STAGE_PORT_READY ==
5938                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5939                         break;
5940                 msleep(10);
5941         }
5942
5943         /*
5944          * If there was a port error during POST, then don't proceed with
5945          * other register reads as the data may not be valid.  Just exit.
5946          */
5947         if (port_error) {
5948                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5949                         "1408 Port Failed POST - portsmphr=0x%x, "
5950                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5951                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5952                         portsmphr_reg.word0,
5953                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5954                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5955                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5956                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5957                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5958                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5959                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5960                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5961         } else {
5962                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5963                                 "2534 Device Info: SLIFamily=0x%x, "
5964                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5965                                 "SLIHint_2=0x%x, FT=0x%x\n",
5966                                 bf_get(lpfc_sli_intf_sli_family,
5967                                        &phba->sli4_hba.sli_intf),
5968                                 bf_get(lpfc_sli_intf_slirev,
5969                                        &phba->sli4_hba.sli_intf),
5970                                 bf_get(lpfc_sli_intf_if_type,
5971                                        &phba->sli4_hba.sli_intf),
5972                                 bf_get(lpfc_sli_intf_sli_hint1,
5973                                        &phba->sli4_hba.sli_intf),
5974                                 bf_get(lpfc_sli_intf_sli_hint2,
5975                                        &phba->sli4_hba.sli_intf),
5976                                 bf_get(lpfc_sli_intf_func_type,
5977                                        &phba->sli4_hba.sli_intf));
5978                 /*
5979                  * Check for other Port errors during the initialization
5980                  * process.  Fail the load if the port did not come up
5981                  * correctly.
5982                  */
5983                 if_type = bf_get(lpfc_sli_intf_if_type,
5984                                  &phba->sli4_hba.sli_intf);
5985                 switch (if_type) {
5986                 case LPFC_SLI_INTF_IF_TYPE_0:
5987                         phba->sli4_hba.ue_mask_lo =
5988                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5989                         phba->sli4_hba.ue_mask_hi =
5990                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5991                         uerrlo_reg.word0 =
5992                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5993                         uerrhi_reg.word0 =
5994                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5995                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5996                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5997                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5998                                                 "1422 Unrecoverable Error "
5999                                                 "Detected during POST "
6000                                                 "uerr_lo_reg=0x%x, "
6001                                                 "uerr_hi_reg=0x%x, "
6002                                                 "ue_mask_lo_reg=0x%x, "
6003                                                 "ue_mask_hi_reg=0x%x\n",
6004                                                 uerrlo_reg.word0,
6005                                                 uerrhi_reg.word0,
6006                                                 phba->sli4_hba.ue_mask_lo,
6007                                                 phba->sli4_hba.ue_mask_hi);
6008                                 port_error = -ENODEV;
6009                         }
6010                         break;
6011                 case LPFC_SLI_INTF_IF_TYPE_2:
6012                         /* Final checks.  The port status should be clean. */
6013                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6014                                 &reg_data.word0) ||
6015                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
6016                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
6017                                 phba->work_status[0] =
6018                                         readl(phba->sli4_hba.u.if_type2.
6019                                               ERR1regaddr);
6020                                 phba->work_status[1] =
6021                                         readl(phba->sli4_hba.u.if_type2.
6022                                               ERR2regaddr);
6023                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6024                                         "2888 Unrecoverable port error "
6025                                         "following POST: port status reg "
6026                                         "0x%x, port_smphr reg 0x%x, "
6027                                         "error 1=0x%x, error 2=0x%x\n",
6028                                         reg_data.word0,
6029                                         portsmphr_reg.word0,
6030                                         phba->work_status[0],
6031                                         phba->work_status[1]);
6032                                 port_error = -ENODEV;
6033                         }
6034                         break;
6035                 case LPFC_SLI_INTF_IF_TYPE_1:
6036                 default:
6037                         break;
6038                 }
6039         }
6040         return port_error;
6041 }
6042
6043 /**
6044  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
6045  * @phba: pointer to lpfc hba data structure.
6046  * @if_type:  The SLI4 interface type getting configured.
6047  *
6048  * This routine is invoked to set up SLI4 BAR0 PCI config space register
6049  * memory map.
6050  **/
6051 static void
6052 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
6053 {
6054         switch (if_type) {
6055         case LPFC_SLI_INTF_IF_TYPE_0:
6056                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
6057                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
6058                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
6059                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
6060                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
6061                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
6062                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
6063                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
6064                 phba->sli4_hba.SLIINTFregaddr =
6065                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6066                 break;
6067         case LPFC_SLI_INTF_IF_TYPE_2:
6068                 phba->sli4_hba.u.if_type2.ERR1regaddr =
6069                         phba->sli4_hba.conf_regs_memmap_p +
6070                                                 LPFC_CTL_PORT_ER1_OFFSET;
6071                 phba->sli4_hba.u.if_type2.ERR2regaddr =
6072                         phba->sli4_hba.conf_regs_memmap_p +
6073                                                 LPFC_CTL_PORT_ER2_OFFSET;
6074                 phba->sli4_hba.u.if_type2.CTRLregaddr =
6075                         phba->sli4_hba.conf_regs_memmap_p +
6076                                                 LPFC_CTL_PORT_CTL_OFFSET;
6077                 phba->sli4_hba.u.if_type2.STATUSregaddr =
6078                         phba->sli4_hba.conf_regs_memmap_p +
6079                                                 LPFC_CTL_PORT_STA_OFFSET;
6080                 phba->sli4_hba.SLIINTFregaddr =
6081                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
6082                 phba->sli4_hba.PSMPHRregaddr =
6083                         phba->sli4_hba.conf_regs_memmap_p +
6084                                                 LPFC_CTL_PORT_SEM_OFFSET;
6085                 phba->sli4_hba.RQDBregaddr =
6086                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
6087                 phba->sli4_hba.WQDBregaddr =
6088                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
6089                 phba->sli4_hba.EQCQDBregaddr =
6090                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
6091                 phba->sli4_hba.MQDBregaddr =
6092                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
6093                 phba->sli4_hba.BMBXregaddr =
6094                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
6095                 break;
6096         case LPFC_SLI_INTF_IF_TYPE_1:
6097         default:
6098                 dev_printk(KERN_ERR, &phba->pcidev->dev,
6099                            "FATAL - unsupported SLI4 interface type - %d\n",
6100                            if_type);
6101                 break;
6102         }
6103 }
6104
6105 /**
6106  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
6107  * @phba: pointer to lpfc hba data structure.
6108  *
6109  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
6110  * memory map.
6111  **/
6112 static void
6113 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
6114 {
6115         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6116                 LPFC_SLIPORT_IF0_SMPHR;
6117         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6118                 LPFC_HST_ISR0;
6119         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6120                 LPFC_HST_IMR0;
6121         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
6122                 LPFC_HST_ISCR0;
6123 }
6124
6125 /**
6126  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
6127  * @phba: pointer to lpfc hba data structure.
6128  * @vf: virtual function number
6129  *
6130  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
6131  * based on the given viftual function number, @vf.
6132  *
6133  * Return 0 if successful, otherwise -ENODEV.
6134  **/
6135 static int
6136 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
6137 {
6138         if (vf > LPFC_VIR_FUNC_MAX)
6139                 return -ENODEV;
6140
6141         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6142                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
6143         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6144                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
6145         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6146                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
6147         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6148                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
6149         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
6150                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
6151         return 0;
6152 }
6153
6154 /**
6155  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
6156  * @phba: pointer to lpfc hba data structure.
6157  *
6158  * This routine is invoked to create the bootstrap mailbox
6159  * region consistent with the SLI-4 interface spec.  This
6160  * routine allocates all memory necessary to communicate
6161  * mailbox commands to the port and sets up all alignment
6162  * needs.  No locks are expected to be held when calling
6163  * this routine.
6164  *
6165  * Return codes
6166  *      0 - successful
6167  *      -ENOMEM - could not allocated memory.
6168  **/
6169 static int
6170 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
6171 {
6172         uint32_t bmbx_size;
6173         struct lpfc_dmabuf *dmabuf;
6174         struct dma_address *dma_address;
6175         uint32_t pa_addr;
6176         uint64_t phys_addr;
6177
6178         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
6179         if (!dmabuf)
6180                 return -ENOMEM;
6181
6182         /*
6183          * The bootstrap mailbox region is comprised of 2 parts
6184          * plus an alignment restriction of 16 bytes.
6185          */
6186         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
6187         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
6188                                           bmbx_size,
6189                                           &dmabuf->phys,
6190                                           GFP_KERNEL);
6191         if (!dmabuf->virt) {
6192                 kfree(dmabuf);
6193                 return -ENOMEM;
6194         }
6195         memset(dmabuf->virt, 0, bmbx_size);
6196
6197         /*
6198          * Initialize the bootstrap mailbox pointers now so that the register
6199          * operations are simple later.  The mailbox dma address is required
6200          * to be 16-byte aligned.  Also align the virtual memory as each
6201          * maibox is copied into the bmbx mailbox region before issuing the
6202          * command to the port.
6203          */
6204         phba->sli4_hba.bmbx.dmabuf = dmabuf;
6205         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
6206
6207         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
6208                                               LPFC_ALIGN_16_BYTE);
6209         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
6210                                               LPFC_ALIGN_16_BYTE);
6211
6212         /*
6213          * Set the high and low physical addresses now.  The SLI4 alignment
6214          * requirement is 16 bytes and the mailbox is posted to the port
6215          * as two 30-bit addresses.  The other data is a bit marking whether
6216          * the 30-bit address is the high or low address.
6217          * Upcast bmbx aphys to 64bits so shift instruction compiles
6218          * clean on 32 bit machines.
6219          */
6220         dma_address = &phba->sli4_hba.bmbx.dma_address;
6221         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
6222         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
6223         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
6224                                            LPFC_BMBX_BIT1_ADDR_HI);
6225
6226         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
6227         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
6228                                            LPFC_BMBX_BIT1_ADDR_LO);
6229         return 0;
6230 }
6231
6232 /**
6233  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
6234  * @phba: pointer to lpfc hba data structure.
6235  *
6236  * This routine is invoked to teardown the bootstrap mailbox
6237  * region and release all host resources. This routine requires
6238  * the caller to ensure all mailbox commands recovered, no
6239  * additional mailbox comands are sent, and interrupts are disabled
6240  * before calling this routine.
6241  *
6242  **/
6243 static void
6244 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
6245 {
6246         dma_free_coherent(&phba->pcidev->dev,
6247                           phba->sli4_hba.bmbx.bmbx_size,
6248                           phba->sli4_hba.bmbx.dmabuf->virt,
6249                           phba->sli4_hba.bmbx.dmabuf->phys);
6250
6251         kfree(phba->sli4_hba.bmbx.dmabuf);
6252         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
6253 }
6254
6255 /**
6256  * lpfc_sli4_read_config - Get the config parameters.
6257  * @phba: pointer to lpfc hba data structure.
6258  *
6259  * This routine is invoked to read the configuration parameters from the HBA.
6260  * The configuration parameters are used to set the base and maximum values
6261  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
6262  * allocation for the port.
6263  *
6264  * Return codes
6265  *      0 - successful
6266  *      -ENOMEM - No available memory
6267  *      -EIO - The mailbox failed to complete successfully.
6268  **/
6269 int
6270 lpfc_sli4_read_config(struct lpfc_hba *phba)
6271 {
6272         LPFC_MBOXQ_t *pmb;
6273         struct lpfc_mbx_read_config *rd_config;
6274         union  lpfc_sli4_cfg_shdr *shdr;
6275         uint32_t shdr_status, shdr_add_status;
6276         struct lpfc_mbx_get_func_cfg *get_func_cfg;
6277         struct lpfc_rsrc_desc_fcfcoe *desc;
6278         uint32_t desc_count;
6279         int length, i, rc = 0;
6280
6281         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6282         if (!pmb) {
6283                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6284                                 "2011 Unable to allocate memory for issuing "
6285                                 "SLI_CONFIG_SPECIAL mailbox command\n");
6286                 return -ENOMEM;
6287         }
6288
6289         lpfc_read_config(phba, pmb);
6290
6291         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6292         if (rc != MBX_SUCCESS) {
6293                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6294                         "2012 Mailbox failed , mbxCmd x%x "
6295                         "READ_CONFIG, mbxStatus x%x\n",
6296                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
6297                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
6298                 rc = -EIO;
6299         } else {
6300                 rd_config = &pmb->u.mqe.un.rd_config;
6301                 if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
6302                         phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
6303                         phba->sli4_hba.lnk_info.lnk_tp =
6304                                 bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
6305                         phba->sli4_hba.lnk_info.lnk_no =
6306                                 bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
6307                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6308                                         "3081 lnk_type:%d, lnk_numb:%d\n",
6309                                         phba->sli4_hba.lnk_info.lnk_tp,
6310                                         phba->sli4_hba.lnk_info.lnk_no);
6311                 } else
6312                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6313                                         "3082 Mailbox (x%x) returned ldv:x0\n",
6314                                         bf_get(lpfc_mqe_command, &pmb->u.mqe));
6315                 phba->sli4_hba.extents_in_use =
6316                         bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
6317                 phba->sli4_hba.max_cfg_param.max_xri =
6318                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
6319                 phba->sli4_hba.max_cfg_param.xri_base =
6320                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
6321                 phba->sli4_hba.max_cfg_param.max_vpi =
6322                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
6323                 phba->sli4_hba.max_cfg_param.vpi_base =
6324                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
6325                 phba->sli4_hba.max_cfg_param.max_rpi =
6326                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
6327                 phba->sli4_hba.max_cfg_param.rpi_base =
6328                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
6329                 phba->sli4_hba.max_cfg_param.max_vfi =
6330                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
6331                 phba->sli4_hba.max_cfg_param.vfi_base =
6332                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
6333                 phba->sli4_hba.max_cfg_param.max_fcfi =
6334                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
6335                 phba->sli4_hba.max_cfg_param.max_eq =
6336                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
6337                 phba->sli4_hba.max_cfg_param.max_rq =
6338                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
6339                 phba->sli4_hba.max_cfg_param.max_wq =
6340                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
6341                 phba->sli4_hba.max_cfg_param.max_cq =
6342                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
6343                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
6344                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
6345                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
6346                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
6347                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
6348                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
6349                 phba->max_vports = phba->max_vpi;
6350                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6351                                 "2003 cfg params Extents? %d "
6352                                 "XRI(B:%d M:%d), "
6353                                 "VPI(B:%d M:%d) "
6354                                 "VFI(B:%d M:%d) "
6355                                 "RPI(B:%d M:%d) "
6356                                 "FCFI(Count:%d)\n",
6357                                 phba->sli4_hba.extents_in_use,
6358                                 phba->sli4_hba.max_cfg_param.xri_base,
6359                                 phba->sli4_hba.max_cfg_param.max_xri,
6360                                 phba->sli4_hba.max_cfg_param.vpi_base,
6361                                 phba->sli4_hba.max_cfg_param.max_vpi,
6362                                 phba->sli4_hba.max_cfg_param.vfi_base,
6363                                 phba->sli4_hba.max_cfg_param.max_vfi,
6364                                 phba->sli4_hba.max_cfg_param.rpi_base,
6365                                 phba->sli4_hba.max_cfg_param.max_rpi,
6366                                 phba->sli4_hba.max_cfg_param.max_fcfi);
6367         }
6368
6369         if (rc)
6370                 goto read_cfg_out;
6371
6372         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
6373         if (phba->cfg_hba_queue_depth >
6374                 (phba->sli4_hba.max_cfg_param.max_xri -
6375                         lpfc_sli4_get_els_iocb_cnt(phba)))
6376                 phba->cfg_hba_queue_depth =
6377                         phba->sli4_hba.max_cfg_param.max_xri -
6378                                 lpfc_sli4_get_els_iocb_cnt(phba);
6379
6380         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
6381             LPFC_SLI_INTF_IF_TYPE_2)
6382                 goto read_cfg_out;
6383
6384         /* get the pf# and vf# for SLI4 if_type 2 port */
6385         length = (sizeof(struct lpfc_mbx_get_func_cfg) -
6386                   sizeof(struct lpfc_sli4_cfg_mhdr));
6387         lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON,
6388                          LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG,
6389                          length, LPFC_SLI4_MBX_EMBED);
6390
6391         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6392         shdr = (union lpfc_sli4_cfg_shdr *)
6393                                 &pmb->u.mqe.un.sli4_config.header.cfg_shdr;
6394         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6395         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6396         if (rc || shdr_status || shdr_add_status) {
6397                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6398                                 "3026 Mailbox failed , mbxCmd x%x "
6399                                 "GET_FUNCTION_CONFIG, mbxStatus x%x\n",
6400                                 bf_get(lpfc_mqe_command, &pmb->u.mqe),
6401                                 bf_get(lpfc_mqe_status, &pmb->u.mqe));
6402                 rc = -EIO;
6403                 goto read_cfg_out;
6404         }
6405
6406         /* search for fc_fcoe resrouce descriptor */
6407         get_func_cfg = &pmb->u.mqe.un.get_func_cfg;
6408         desc_count = get_func_cfg->func_cfg.rsrc_desc_count;
6409
6410         for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) {
6411                 desc = (struct lpfc_rsrc_desc_fcfcoe *)
6412                         &get_func_cfg->func_cfg.desc[i];
6413                 if (LPFC_RSRC_DESC_TYPE_FCFCOE ==
6414                     bf_get(lpfc_rsrc_desc_pcie_type, desc)) {
6415                         phba->sli4_hba.iov.pf_number =
6416                                 bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc);
6417                         phba->sli4_hba.iov.vf_number =
6418                                 bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc);
6419                         break;
6420                 }
6421         }
6422
6423         if (i < LPFC_RSRC_DESC_MAX_NUM)
6424                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
6425                                 "3027 GET_FUNCTION_CONFIG: pf_number:%d, "
6426                                 "vf_number:%d\n", phba->sli4_hba.iov.pf_number,
6427                                 phba->sli4_hba.iov.vf_number);
6428         else {
6429                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6430                                 "3028 GET_FUNCTION_CONFIG: failed to find "
6431                                 "Resrouce Descriptor:x%x\n",
6432                                 LPFC_RSRC_DESC_TYPE_FCFCOE);
6433                 rc = -EIO;
6434         }
6435
6436 read_cfg_out:
6437         mempool_free(pmb, phba->mbox_mem_pool);
6438         return rc;
6439 }
6440
6441 /**
6442  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
6443  * @phba: pointer to lpfc hba data structure.
6444  *
6445  * This routine is invoked to setup the port-side endian order when
6446  * the port if_type is 0.  This routine has no function for other
6447  * if_types.
6448  *
6449  * Return codes
6450  *      0 - successful
6451  *      -ENOMEM - No available memory
6452  *      -EIO - The mailbox failed to complete successfully.
6453  **/
6454 static int
6455 lpfc_setup_endian_order(struct lpfc_hba *phba)
6456 {
6457         LPFC_MBOXQ_t *mboxq;
6458         uint32_t if_type, rc = 0;
6459         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
6460                                       HOST_ENDIAN_HIGH_WORD1};
6461
6462         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6463         switch (if_type) {
6464         case LPFC_SLI_INTF_IF_TYPE_0:
6465                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6466                                                        GFP_KERNEL);
6467                 if (!mboxq) {
6468                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6469                                         "0492 Unable to allocate memory for "
6470                                         "issuing SLI_CONFIG_SPECIAL mailbox "
6471                                         "command\n");
6472                         return -ENOMEM;
6473                 }
6474
6475                 /*
6476                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
6477                  * two words to contain special data values and no other data.
6478                  */
6479                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
6480                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
6481                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6482                 if (rc != MBX_SUCCESS) {
6483                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6484                                         "0493 SLI_CONFIG_SPECIAL mailbox "
6485                                         "failed with status x%x\n",
6486                                         rc);
6487                         rc = -EIO;
6488                 }
6489                 mempool_free(mboxq, phba->mbox_mem_pool);
6490                 break;
6491         case LPFC_SLI_INTF_IF_TYPE_2:
6492         case LPFC_SLI_INTF_IF_TYPE_1:
6493         default:
6494                 break;
6495         }
6496         return rc;
6497 }
6498
6499 /**
6500  * lpfc_sli4_queue_verify - Verify and update EQ and CQ counts
6501  * @phba: pointer to lpfc hba data structure.
6502  *
6503  * This routine is invoked to check the user settable queue counts for EQs and
6504  * CQs. after this routine is called the counts will be set to valid values that
6505  * adhere to the constraints of the system's interrupt vectors and the port's
6506  * queue resources.
6507  *
6508  * Return codes
6509  *      0 - successful
6510  *      -ENOMEM - No available memory
6511  **/
6512 static int
6513 lpfc_sli4_queue_verify(struct lpfc_hba *phba)
6514 {
6515         int cfg_fcp_wq_count;
6516         int cfg_fcp_eq_count;
6517
6518         /*
6519          * Sanity check for confiugred queue parameters against the run-time
6520          * device parameters
6521          */
6522
6523         /* Sanity check on FCP fast-path WQ parameters */
6524         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
6525         if (cfg_fcp_wq_count >
6526             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
6527                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
6528                                    LPFC_SP_WQN_DEF;
6529                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
6530                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6531                                         "2581 Not enough WQs (%d) from "
6532                                         "the pci function for supporting "
6533                                         "FCP WQs (%d)\n",
6534                                         phba->sli4_hba.max_cfg_param.max_wq,
6535                                         phba->cfg_fcp_wq_count);
6536                         goto out_error;
6537                 }
6538                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6539                                 "2582 Not enough WQs (%d) from the pci "
6540                                 "function for supporting the requested "
6541                                 "FCP WQs (%d), the actual FCP WQs can "
6542                                 "be supported: %d\n",
6543                                 phba->sli4_hba.max_cfg_param.max_wq,
6544                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
6545         }
6546         /* The actual number of FCP work queues adopted */
6547         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
6548
6549         /* Sanity check on FCP fast-path EQ parameters */
6550         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
6551         if (cfg_fcp_eq_count >
6552             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
6553                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
6554                                    LPFC_SP_EQN_DEF;
6555                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
6556                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6557                                         "2574 Not enough EQs (%d) from the "
6558                                         "pci function for supporting FCP "
6559                                         "EQs (%d)\n",
6560                                         phba->sli4_hba.max_cfg_param.max_eq,
6561                                         phba->cfg_fcp_eq_count);
6562                         goto out_error;
6563                 }
6564                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6565                                 "2575 Not enough EQs (%d) from the pci "
6566                                 "function for supporting the requested "
6567                                 "FCP EQs (%d), the actual FCP EQs can "
6568                                 "be supported: %d\n",
6569                                 phba->sli4_hba.max_cfg_param.max_eq,
6570                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6571         }
6572         /* It does not make sense to have more EQs than WQs */
6573         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6574                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6575                                 "2593 The FCP EQ count(%d) cannot be greater "
6576                                 "than the FCP WQ count(%d), limiting the "
6577                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6578                                 phba->cfg_fcp_wq_count,
6579                                 phba->cfg_fcp_wq_count);
6580                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6581         }
6582         /* The actual number of FCP event queues adopted */
6583         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6584         /* The overall number of event queues used */
6585         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6586
6587         /* Get EQ depth from module parameter, fake the default for now */
6588         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6589         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6590
6591         /* Get CQ depth from module parameter, fake the default for now */
6592         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6593         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6594
6595         return 0;
6596 out_error:
6597         return -ENOMEM;
6598 }
6599
6600 /**
6601  * lpfc_sli4_queue_create - Create all the SLI4 queues
6602  * @phba: pointer to lpfc hba data structure.
6603  *
6604  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
6605  * operation. For each SLI4 queue type, the parameters such as queue entry
6606  * count (queue depth) shall be taken from the module parameter. For now,
6607  * we just use some constant number as place holder.
6608  *
6609  * Return codes
6610  *      0 - successful
6611  *      -ENOMEM - No availble memory
6612  *      -EIO - The mailbox failed to complete successfully.
6613  **/
6614 int
6615 lpfc_sli4_queue_create(struct lpfc_hba *phba)
6616 {
6617         struct lpfc_queue *qdesc;
6618         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6619
6620         /*
6621          * Create Event Queues (EQs)
6622          */
6623
6624         /* Create slow path event queue */
6625         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6626                                       phba->sli4_hba.eq_ecount);
6627         if (!qdesc) {
6628                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6629                                 "0496 Failed allocate slow-path EQ\n");
6630                 goto out_error;
6631         }
6632         phba->sli4_hba.sp_eq = qdesc;
6633
6634         /*
6635          * Create fast-path FCP Event Queue(s).  The cfg_fcp_eq_count can be
6636          * zero whenever there is exactly one interrupt vector.  This is not
6637          * an error.
6638          */
6639         if (phba->cfg_fcp_eq_count) {
6640                 phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6641                                        phba->cfg_fcp_eq_count), GFP_KERNEL);
6642                 if (!phba->sli4_hba.fp_eq) {
6643                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6644                                         "2576 Failed allocate memory for "
6645                                         "fast-path EQ record array\n");
6646                         goto out_free_sp_eq;
6647                 }
6648         }
6649         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6650                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6651                                               phba->sli4_hba.eq_ecount);
6652                 if (!qdesc) {
6653                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6654                                         "0497 Failed allocate fast-path EQ\n");
6655                         goto out_free_fp_eq;
6656                 }
6657                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6658         }
6659
6660         /*
6661          * Create Complete Queues (CQs)
6662          */
6663
6664         /* Create slow-path Mailbox Command Complete Queue */
6665         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6666                                       phba->sli4_hba.cq_ecount);
6667         if (!qdesc) {
6668                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6669                                 "0500 Failed allocate slow-path mailbox CQ\n");
6670                 goto out_free_fp_eq;
6671         }
6672         phba->sli4_hba.mbx_cq = qdesc;
6673
6674         /* Create slow-path ELS Complete Queue */
6675         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6676                                       phba->sli4_hba.cq_ecount);
6677         if (!qdesc) {
6678                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6679                                 "0501 Failed allocate slow-path ELS CQ\n");
6680                 goto out_free_mbx_cq;
6681         }
6682         phba->sli4_hba.els_cq = qdesc;
6683
6684
6685         /*
6686          * Create fast-path FCP Completion Queue(s), one-to-one with FCP EQs.
6687          * If there are no FCP EQs then create exactly one FCP CQ.
6688          */
6689         if (phba->cfg_fcp_eq_count)
6690                 phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6691                                                  phba->cfg_fcp_eq_count),
6692                                                 GFP_KERNEL);
6693         else
6694                 phba->sli4_hba.fcp_cq = kzalloc(sizeof(struct lpfc_queue *),
6695                                                 GFP_KERNEL);
6696         if (!phba->sli4_hba.fcp_cq) {
6697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6698                                 "2577 Failed allocate memory for fast-path "
6699                                 "CQ record array\n");
6700                 goto out_free_els_cq;
6701         }
6702         fcp_cqidx = 0;
6703         do {
6704                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6705                                               phba->sli4_hba.cq_ecount);
6706                 if (!qdesc) {
6707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6708                                         "0499 Failed allocate fast-path FCP "
6709                                         "CQ (%d)\n", fcp_cqidx);
6710                         goto out_free_fcp_cq;
6711                 }
6712                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6713         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6714
6715         /* Create Mailbox Command Queue */
6716         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6717         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6718
6719         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6720                                       phba->sli4_hba.mq_ecount);
6721         if (!qdesc) {
6722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6723                                 "0505 Failed allocate slow-path MQ\n");
6724                 goto out_free_fcp_cq;
6725         }
6726         phba->sli4_hba.mbx_wq = qdesc;
6727
6728         /*
6729          * Create all the Work Queues (WQs)
6730          */
6731         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6732         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6733
6734         /* Create slow-path ELS Work Queue */
6735         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6736                                       phba->sli4_hba.wq_ecount);
6737         if (!qdesc) {
6738                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6739                                 "0504 Failed allocate slow-path ELS WQ\n");
6740                 goto out_free_mbx_wq;
6741         }
6742         phba->sli4_hba.els_wq = qdesc;
6743
6744         /* Create fast-path FCP Work Queue(s) */
6745         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6746                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6747         if (!phba->sli4_hba.fcp_wq) {
6748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6749                                 "2578 Failed allocate memory for fast-path "
6750                                 "WQ record array\n");
6751                 goto out_free_els_wq;
6752         }
6753         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6754                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6755                                               phba->sli4_hba.wq_ecount);
6756                 if (!qdesc) {
6757                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6758                                         "0503 Failed allocate fast-path FCP "
6759                                         "WQ (%d)\n", fcp_wqidx);
6760                         goto out_free_fcp_wq;
6761                 }
6762                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6763         }
6764
6765         /*
6766          * Create Receive Queue (RQ)
6767          */
6768         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6769         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6770
6771         /* Create Receive Queue for header */
6772         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6773                                       phba->sli4_hba.rq_ecount);
6774         if (!qdesc) {
6775                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6776                                 "0506 Failed allocate receive HRQ\n");
6777                 goto out_free_fcp_wq;
6778         }
6779         phba->sli4_hba.hdr_rq = qdesc;
6780
6781         /* Create Receive Queue for data */
6782         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6783                                       phba->sli4_hba.rq_ecount);
6784         if (!qdesc) {
6785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6786                                 "0507 Failed allocate receive DRQ\n");
6787                 goto out_free_hdr_rq;
6788         }
6789         phba->sli4_hba.dat_rq = qdesc;
6790
6791         return 0;
6792
6793 out_free_hdr_rq:
6794         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6795         phba->sli4_hba.hdr_rq = NULL;
6796 out_free_fcp_wq:
6797         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6798                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6799                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6800         }
6801         kfree(phba->sli4_hba.fcp_wq);
6802         phba->sli4_hba.fcp_wq = NULL;
6803 out_free_els_wq:
6804         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6805         phba->sli4_hba.els_wq = NULL;
6806 out_free_mbx_wq:
6807         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6808         phba->sli4_hba.mbx_wq = NULL;
6809 out_free_fcp_cq:
6810         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6811                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6812                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6813         }
6814         kfree(phba->sli4_hba.fcp_cq);
6815         phba->sli4_hba.fcp_cq = NULL;
6816 out_free_els_cq:
6817         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6818         phba->sli4_hba.els_cq = NULL;
6819 out_free_mbx_cq:
6820         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6821         phba->sli4_hba.mbx_cq = NULL;
6822 out_free_fp_eq:
6823         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6824                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6825                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6826         }
6827         kfree(phba->sli4_hba.fp_eq);
6828         phba->sli4_hba.fp_eq = NULL;
6829 out_free_sp_eq:
6830         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6831         phba->sli4_hba.sp_eq = NULL;
6832 out_error:
6833         return -ENOMEM;
6834 }
6835
6836 /**
6837  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6838  * @phba: pointer to lpfc hba data structure.
6839  *
6840  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6841  * operation.
6842  *
6843  * Return codes
6844  *      0 - successful
6845  *      -ENOMEM - No available memory
6846  *      -EIO - The mailbox failed to complete successfully.
6847  **/
6848 void
6849 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6850 {
6851         int fcp_qidx;
6852
6853         /* Release mailbox command work queue */
6854         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6855         phba->sli4_hba.mbx_wq = NULL;
6856
6857         /* Release ELS work queue */
6858         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6859         phba->sli4_hba.els_wq = NULL;
6860
6861         /* Release FCP work queue */
6862         if (phba->sli4_hba.fcp_wq != NULL)
6863                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
6864                      fcp_qidx++)
6865                         lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6866         kfree(phba->sli4_hba.fcp_wq);
6867         phba->sli4_hba.fcp_wq = NULL;
6868
6869         /* Release unsolicited receive queue */
6870         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6871         phba->sli4_hba.hdr_rq = NULL;
6872         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6873         phba->sli4_hba.dat_rq = NULL;
6874
6875         /* Release ELS complete queue */
6876         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6877         phba->sli4_hba.els_cq = NULL;
6878
6879         /* Release mailbox command complete queue */
6880         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6881         phba->sli4_hba.mbx_cq = NULL;
6882
6883         /* Release FCP response complete queue */
6884         fcp_qidx = 0;
6885         if (phba->sli4_hba.fcp_cq != NULL)
6886                 do
6887                         lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6888                 while (++fcp_qidx < phba->cfg_fcp_eq_count);
6889         kfree(phba->sli4_hba.fcp_cq);
6890         phba->sli4_hba.fcp_cq = NULL;
6891
6892         /* Release fast-path event queue */
6893         if (phba->sli4_hba.fp_eq != NULL)
6894                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
6895                      fcp_qidx++)
6896                         lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6897         kfree(phba->sli4_hba.fp_eq);
6898         phba->sli4_hba.fp_eq = NULL;
6899
6900         /* Release slow-path event queue */
6901         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6902         phba->sli4_hba.sp_eq = NULL;
6903
6904         return;
6905 }
6906
6907 /**
6908  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6909  * @phba: pointer to lpfc hba data structure.
6910  *
6911  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6912  * operation.
6913  *
6914  * Return codes
6915  *      0 - successful
6916  *      -ENOMEM - No available memory
6917  *      -EIO - The mailbox failed to complete successfully.
6918  **/
6919 int
6920 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6921 {
6922         int rc = -ENOMEM;
6923         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6924         int fcp_cq_index = 0;
6925
6926         /*
6927          * Set up Event Queues (EQs)
6928          */
6929
6930         /* Set up slow-path event queue */
6931         if (!phba->sli4_hba.sp_eq) {
6932                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6933                                 "0520 Slow-path EQ not allocated\n");
6934                 goto out_error;
6935         }
6936         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6937                             LPFC_SP_DEF_IMAX);
6938         if (rc) {
6939                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6940                                 "0521 Failed setup of slow-path EQ: "
6941                                 "rc = 0x%x\n", rc);
6942                 goto out_error;
6943         }
6944         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6945                         "2583 Slow-path EQ setup: queue-id=%d\n",
6946                         phba->sli4_hba.sp_eq->queue_id);
6947
6948         /* Set up fast-path event queue */
6949         if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
6950                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6951                                 "3147 Fast-path EQs not allocated\n");
6952                 rc = -ENOMEM;
6953                 goto out_destroy_sp_eq;
6954         }
6955         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6956                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6957                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6958                                         "0522 Fast-path EQ (%d) not "
6959                                         "allocated\n", fcp_eqidx);
6960                         rc = -ENOMEM;
6961                         goto out_destroy_fp_eq;
6962                 }
6963                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6964                                     phba->cfg_fcp_imax);
6965                 if (rc) {
6966                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6967                                         "0523 Failed setup of fast-path EQ "
6968                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6969                         goto out_destroy_fp_eq;
6970                 }
6971                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6972                                 "2584 Fast-path EQ setup: "
6973                                 "queue[%d]-id=%d\n", fcp_eqidx,
6974                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6975         }
6976
6977         /*
6978          * Set up Complete Queues (CQs)
6979          */
6980
6981         /* Set up slow-path MBOX Complete Queue as the first CQ */
6982         if (!phba->sli4_hba.mbx_cq) {
6983                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6984                                 "0528 Mailbox CQ not allocated\n");
6985                 rc = -ENOMEM;
6986                 goto out_destroy_fp_eq;
6987         }
6988         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6989                             LPFC_MCQ, LPFC_MBOX);
6990         if (rc) {
6991                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6992                                 "0529 Failed setup of slow-path mailbox CQ: "
6993                                 "rc = 0x%x\n", rc);
6994                 goto out_destroy_fp_eq;
6995         }
6996         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6997                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6998                         phba->sli4_hba.mbx_cq->queue_id,
6999                         phba->sli4_hba.sp_eq->queue_id);
7000
7001         /* Set up slow-path ELS Complete Queue */
7002         if (!phba->sli4_hba.els_cq) {
7003                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7004                                 "0530 ELS CQ not allocated\n");
7005                 rc = -ENOMEM;
7006                 goto out_destroy_mbx_cq;
7007         }
7008         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
7009                             LPFC_WCQ, LPFC_ELS);
7010         if (rc) {
7011                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7012                                 "0531 Failed setup of slow-path ELS CQ: "
7013                                 "rc = 0x%x\n", rc);
7014                 goto out_destroy_mbx_cq;
7015         }
7016         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7017                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
7018                         phba->sli4_hba.els_cq->queue_id,
7019                         phba->sli4_hba.sp_eq->queue_id);
7020
7021         /* Set up fast-path FCP Response Complete Queue */
7022         if (!phba->sli4_hba.fcp_cq) {
7023                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7024                                 "3148 Fast-path FCP CQ array not "
7025                                 "allocated\n");
7026                 rc = -ENOMEM;
7027                 goto out_destroy_els_cq;
7028         }
7029         fcp_cqidx = 0;
7030         do {
7031                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
7032                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7033                                         "0526 Fast-path FCP CQ (%d) not "
7034                                         "allocated\n", fcp_cqidx);
7035                         rc = -ENOMEM;
7036                         goto out_destroy_fcp_cq;
7037                 }
7038                 if (phba->cfg_fcp_eq_count)
7039                         rc = lpfc_cq_create(phba,
7040                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
7041                                             phba->sli4_hba.fp_eq[fcp_cqidx],
7042                                             LPFC_WCQ, LPFC_FCP);
7043                 else
7044                         rc = lpfc_cq_create(phba,
7045                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
7046                                             phba->sli4_hba.sp_eq,
7047                                             LPFC_WCQ, LPFC_FCP);
7048                 if (rc) {
7049                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7050                                         "0527 Failed setup of fast-path FCP "
7051                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
7052                         goto out_destroy_fcp_cq;
7053                 }
7054                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7055                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
7056                                 "parent %seq[%d]-id=%d\n",
7057                                 fcp_cqidx,
7058                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
7059                                 (phba->cfg_fcp_eq_count) ? "" : "sp_",
7060                                 fcp_cqidx,
7061                                 (phba->cfg_fcp_eq_count) ?
7062                                    phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
7063                                    phba->sli4_hba.sp_eq->queue_id);
7064         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
7065
7066         /*
7067          * Set up all the Work Queues (WQs)
7068          */
7069
7070         /* Set up Mailbox Command Queue */
7071         if (!phba->sli4_hba.mbx_wq) {
7072                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7073                                 "0538 Slow-path MQ not allocated\n");
7074                 rc = -ENOMEM;
7075                 goto out_destroy_fcp_cq;
7076         }
7077         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
7078                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
7079         if (rc) {
7080                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7081                                 "0539 Failed setup of slow-path MQ: "
7082                                 "rc = 0x%x\n", rc);
7083                 goto out_destroy_fcp_cq;
7084         }
7085         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7086                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
7087                         phba->sli4_hba.mbx_wq->queue_id,
7088                         phba->sli4_hba.mbx_cq->queue_id);
7089
7090         /* Set up slow-path ELS Work Queue */
7091         if (!phba->sli4_hba.els_wq) {
7092                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7093                                 "0536 Slow-path ELS WQ not allocated\n");
7094                 rc = -ENOMEM;
7095                 goto out_destroy_mbx_wq;
7096         }
7097         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
7098                             phba->sli4_hba.els_cq, LPFC_ELS);
7099         if (rc) {
7100                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7101                                 "0537 Failed setup of slow-path ELS WQ: "
7102                                 "rc = 0x%x\n", rc);
7103                 goto out_destroy_mbx_wq;
7104         }
7105         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7106                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
7107                         phba->sli4_hba.els_wq->queue_id,
7108                         phba->sli4_hba.els_cq->queue_id);
7109
7110         /* Set up fast-path FCP Work Queue */
7111         if (!phba->sli4_hba.fcp_wq) {
7112                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7113                                 "3149 Fast-path FCP WQ array not "
7114                                 "allocated\n");
7115                 rc = -ENOMEM;
7116                 goto out_destroy_els_wq;
7117         }
7118         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
7119                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
7120                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7121                                         "0534 Fast-path FCP WQ (%d) not "
7122                                         "allocated\n", fcp_wqidx);
7123                         rc = -ENOMEM;
7124                         goto out_destroy_fcp_wq;
7125                 }
7126                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
7127                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
7128                                     LPFC_FCP);
7129                 if (rc) {
7130                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7131                                         "0535 Failed setup of fast-path FCP "
7132                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
7133                         goto out_destroy_fcp_wq;
7134                 }
7135                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7136                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
7137                                 "parent cq[%d]-id=%d\n",
7138                                 fcp_wqidx,
7139                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
7140                                 fcp_cq_index,
7141                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
7142                 /* Round robin FCP Work Queue's Completion Queue assignment */
7143                 if (phba->cfg_fcp_eq_count)
7144                         fcp_cq_index = ((fcp_cq_index + 1) %
7145                                         phba->cfg_fcp_eq_count);
7146         }
7147
7148         /*
7149          * Create Receive Queue (RQ)
7150          */
7151         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
7152                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7153                                 "0540 Receive Queue not allocated\n");
7154                 rc = -ENOMEM;
7155                 goto out_destroy_fcp_wq;
7156         }
7157
7158         lpfc_rq_adjust_repost(phba, phba->sli4_hba.hdr_rq, LPFC_ELS_HBQ);
7159         lpfc_rq_adjust_repost(phba, phba->sli4_hba.dat_rq, LPFC_ELS_HBQ);
7160
7161         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
7162                             phba->sli4_hba.els_cq, LPFC_USOL);
7163         if (rc) {
7164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7165                                 "0541 Failed setup of Receive Queue: "
7166                                 "rc = 0x%x\n", rc);
7167                 goto out_destroy_fcp_wq;
7168         }
7169
7170         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7171                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
7172                         "parent cq-id=%d\n",
7173                         phba->sli4_hba.hdr_rq->queue_id,
7174                         phba->sli4_hba.dat_rq->queue_id,
7175                         phba->sli4_hba.els_cq->queue_id);
7176         return 0;
7177
7178 out_destroy_fcp_wq:
7179         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
7180                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
7181 out_destroy_els_wq:
7182         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7183 out_destroy_mbx_wq:
7184         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7185 out_destroy_fcp_cq:
7186         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
7187                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
7188 out_destroy_els_cq:
7189         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7190 out_destroy_mbx_cq:
7191         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7192 out_destroy_fp_eq:
7193         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
7194                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
7195 out_destroy_sp_eq:
7196         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
7197 out_error:
7198         return rc;
7199 }
7200
7201 /**
7202  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
7203  * @phba: pointer to lpfc hba data structure.
7204  *
7205  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
7206  * operation.
7207  *
7208  * Return codes
7209  *      0 - successful
7210  *      -ENOMEM - No available memory
7211  *      -EIO - The mailbox failed to complete successfully.
7212  **/
7213 void
7214 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
7215 {
7216         int fcp_qidx;
7217
7218         /* Unset mailbox command work queue */
7219         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
7220         /* Unset ELS work queue */
7221         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
7222         /* Unset unsolicited receive queue */
7223         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
7224         /* Unset FCP work queue */
7225         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
7226                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
7227         /* Unset mailbox command complete queue */
7228         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
7229         /* Unset ELS complete queue */
7230         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
7231         /* Unset FCP response complete queue */
7232         if (phba->sli4_hba.fcp_cq) {
7233                 fcp_qidx = 0;
7234                 do {
7235                         lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
7236                 } while (++fcp_qidx < phba->cfg_fcp_eq_count);
7237         }
7238         /* Unset fast-path event queue */
7239         if (phba->sli4_hba.fp_eq) {
7240                 for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
7241                      fcp_qidx++)
7242                         lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
7243         }
7244         /* Unset slow-path event queue */
7245         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
7246 }
7247
7248 /**
7249  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
7250  * @phba: pointer to lpfc hba data structure.
7251  *
7252  * This routine is invoked to allocate and set up a pool of completion queue
7253  * events. The body of the completion queue event is a completion queue entry
7254  * CQE. For now, this pool is used for the interrupt service routine to queue
7255  * the following HBA completion queue events for the worker thread to process:
7256  *   - Mailbox asynchronous events
7257  *   - Receive queue completion unsolicited events
7258  * Later, this can be used for all the slow-path events.
7259  *
7260  * Return codes
7261  *      0 - successful
7262  *      -ENOMEM - No available memory
7263  **/
7264 static int
7265 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
7266 {
7267         struct lpfc_cq_event *cq_event;
7268         int i;
7269
7270         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
7271                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
7272                 if (!cq_event)
7273                         goto out_pool_create_fail;
7274                 list_add_tail(&cq_event->list,
7275                               &phba->sli4_hba.sp_cqe_event_pool);
7276         }
7277         return 0;
7278
7279 out_pool_create_fail:
7280         lpfc_sli4_cq_event_pool_destroy(phba);
7281         return -ENOMEM;
7282 }
7283
7284 /**
7285  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
7286  * @phba: pointer to lpfc hba data structure.
7287  *
7288  * This routine is invoked to free the pool of completion queue events at
7289  * driver unload time. Note that, it is the responsibility of the driver
7290  * cleanup routine to free all the outstanding completion-queue events
7291  * allocated from this pool back into the pool before invoking this routine
7292  * to destroy the pool.
7293  **/
7294 static void
7295 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
7296 {
7297         struct lpfc_cq_event *cq_event, *next_cq_event;
7298
7299         list_for_each_entry_safe(cq_event, next_cq_event,
7300                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
7301                 list_del(&cq_event->list);
7302                 kfree(cq_event);
7303         }
7304 }
7305
7306 /**
7307  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7308  * @phba: pointer to lpfc hba data structure.
7309  *
7310  * This routine is the lock free version of the API invoked to allocate a
7311  * completion-queue event from the free pool.
7312  *
7313  * Return: Pointer to the newly allocated completion-queue event if successful
7314  *         NULL otherwise.
7315  **/
7316 struct lpfc_cq_event *
7317 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7318 {
7319         struct lpfc_cq_event *cq_event = NULL;
7320
7321         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
7322                          struct lpfc_cq_event, list);
7323         return cq_event;
7324 }
7325
7326 /**
7327  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
7328  * @phba: pointer to lpfc hba data structure.
7329  *
7330  * This routine is the lock version of the API invoked to allocate a
7331  * completion-queue event from the free pool.
7332  *
7333  * Return: Pointer to the newly allocated completion-queue event if successful
7334  *         NULL otherwise.
7335  **/
7336 struct lpfc_cq_event *
7337 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
7338 {
7339         struct lpfc_cq_event *cq_event;
7340         unsigned long iflags;
7341
7342         spin_lock_irqsave(&phba->hbalock, iflags);
7343         cq_event = __lpfc_sli4_cq_event_alloc(phba);
7344         spin_unlock_irqrestore(&phba->hbalock, iflags);
7345         return cq_event;
7346 }
7347
7348 /**
7349  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7350  * @phba: pointer to lpfc hba data structure.
7351  * @cq_event: pointer to the completion queue event to be freed.
7352  *
7353  * This routine is the lock free version of the API invoked to release a
7354  * completion-queue event back into the free pool.
7355  **/
7356 void
7357 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7358                              struct lpfc_cq_event *cq_event)
7359 {
7360         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
7361 }
7362
7363 /**
7364  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
7365  * @phba: pointer to lpfc hba data structure.
7366  * @cq_event: pointer to the completion queue event to be freed.
7367  *
7368  * This routine is the lock version of the API invoked to release a
7369  * completion-queue event back into the free pool.
7370  **/
7371 void
7372 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
7373                            struct lpfc_cq_event *cq_event)
7374 {
7375         unsigned long iflags;
7376         spin_lock_irqsave(&phba->hbalock, iflags);
7377         __lpfc_sli4_cq_event_release(phba, cq_event);
7378         spin_unlock_irqrestore(&phba->hbalock, iflags);
7379 }
7380
7381 /**
7382  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
7383  * @phba: pointer to lpfc hba data structure.
7384  *
7385  * This routine is to free all the pending completion-queue events to the
7386  * back into the free pool for device reset.
7387  **/
7388 static void
7389 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
7390 {
7391         LIST_HEAD(cqelist);
7392         struct lpfc_cq_event *cqe;
7393         unsigned long iflags;
7394
7395         /* Retrieve all the pending WCQEs from pending WCQE lists */
7396         spin_lock_irqsave(&phba->hbalock, iflags);
7397         /* Pending FCP XRI abort events */
7398         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
7399                          &cqelist);
7400         /* Pending ELS XRI abort events */
7401         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
7402                          &cqelist);
7403         /* Pending asynnc events */
7404         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
7405                          &cqelist);
7406         spin_unlock_irqrestore(&phba->hbalock, iflags);
7407
7408         while (!list_empty(&cqelist)) {
7409                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
7410                 lpfc_sli4_cq_event_release(phba, cqe);
7411         }
7412 }
7413
7414 /**
7415  * lpfc_pci_function_reset - Reset pci function.
7416  * @phba: pointer to lpfc hba data structure.
7417  *
7418  * This routine is invoked to request a PCI function reset. It will destroys
7419  * all resources assigned to the PCI function which originates this request.
7420  *
7421  * Return codes
7422  *      0 - successful
7423  *      -ENOMEM - No available memory
7424  *      -EIO - The mailbox failed to complete successfully.
7425  **/
7426 int
7427 lpfc_pci_function_reset(struct lpfc_hba *phba)
7428 {
7429         LPFC_MBOXQ_t *mboxq;
7430         uint32_t rc = 0, if_type;
7431         uint32_t shdr_status, shdr_add_status;
7432         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
7433         union lpfc_sli4_cfg_shdr *shdr;
7434         struct lpfc_register reg_data;
7435         uint16_t devid;
7436
7437         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7438         switch (if_type) {
7439         case LPFC_SLI_INTF_IF_TYPE_0:
7440                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
7441                                                        GFP_KERNEL);
7442                 if (!mboxq) {
7443                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7444                                         "0494 Unable to allocate memory for "
7445                                         "issuing SLI_FUNCTION_RESET mailbox "
7446                                         "command\n");
7447                         return -ENOMEM;
7448                 }
7449
7450                 /* Setup PCI function reset mailbox-ioctl command */
7451                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7452                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
7453                                  LPFC_SLI4_MBX_EMBED);
7454                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7455                 shdr = (union lpfc_sli4_cfg_shdr *)
7456                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7457                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7458                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7459                                          &shdr->response);
7460                 if (rc != MBX_TIMEOUT)
7461                         mempool_free(mboxq, phba->mbox_mem_pool);
7462                 if (shdr_status || shdr_add_status || rc) {
7463                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7464                                         "0495 SLI_FUNCTION_RESET mailbox "
7465                                         "failed with status x%x add_status x%x,"
7466                                         " mbx status x%x\n",
7467                                         shdr_status, shdr_add_status, rc);
7468                         rc = -ENXIO;
7469                 }
7470                 break;
7471         case LPFC_SLI_INTF_IF_TYPE_2:
7472                 for (num_resets = 0;
7473                      num_resets < MAX_IF_TYPE_2_RESETS;
7474                      num_resets++) {
7475                         reg_data.word0 = 0;
7476                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
7477                                LPFC_SLIPORT_LITTLE_ENDIAN);
7478                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
7479                                LPFC_SLIPORT_INIT_PORT);
7480                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
7481                                CTRLregaddr);
7482                         /* flush */
7483                         pci_read_config_word(phba->pcidev,
7484                                              PCI_DEVICE_ID, &devid);
7485                         /*
7486                          * Poll the Port Status Register and wait for RDY for
7487                          * up to 10 seconds.  If the port doesn't respond, treat
7488                          * it as an error.  If the port responds with RN, start
7489                          * the loop again.
7490                          */
7491                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
7492                                 msleep(10);
7493                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
7494                                               STATUSregaddr, &reg_data.word0)) {
7495                                         rc = -ENODEV;
7496                                         goto out;
7497                                 }
7498                                 if (bf_get(lpfc_sliport_status_rn, &reg_data))
7499                                         reset_again++;
7500                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
7501                                         break;
7502                         }
7503
7504                         /*
7505                          * If the port responds to the init request with
7506                          * reset needed, delay for a bit and restart the loop.
7507                          */
7508                         if (reset_again && (rdy_chk < 1000)) {
7509                                 msleep(10);
7510                                 reset_again = 0;
7511                                 continue;
7512                         }
7513
7514                         /* Detect any port errors. */
7515                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
7516                             (rdy_chk >= 1000)) {
7517                                 phba->work_status[0] = readl(
7518                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
7519                                 phba->work_status[1] = readl(
7520                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
7521                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7522                                         "2890 Port error detected during port "
7523                                         "reset(%d): wait_tmo:%d ms, "
7524                                         "port status reg 0x%x, "
7525                                         "error 1=0x%x, error 2=0x%x\n",
7526                                         num_resets, rdy_chk*10,
7527                                         reg_data.word0,
7528                                         phba->work_status[0],
7529                                         phba->work_status[1]);
7530                                 rc = -ENODEV;
7531                         }
7532
7533                         /*
7534                          * Terminate the outer loop provided the Port indicated
7535                          * ready within 10 seconds.
7536                          */
7537                         if (rdy_chk < 1000)
7538                                 break;
7539                 }
7540                 /* delay driver action following IF_TYPE_2 function reset */
7541                 msleep(100);
7542                 break;
7543         case LPFC_SLI_INTF_IF_TYPE_1:
7544         default:
7545                 break;
7546         }
7547
7548 out:
7549         /* Catch the not-ready port failure after a port reset. */
7550         if (num_resets >= MAX_IF_TYPE_2_RESETS)
7551                 rc = -ENODEV;
7552
7553         return rc;
7554 }
7555
7556 /**
7557  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
7558  * @phba: pointer to lpfc hba data structure.
7559  * @cnt: number of nop mailbox commands to send.
7560  *
7561  * This routine is invoked to send a number @cnt of NOP mailbox command and
7562  * wait for each command to complete.
7563  *
7564  * Return: the number of NOP mailbox command completed.
7565  **/
7566 static int
7567 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
7568 {
7569         LPFC_MBOXQ_t *mboxq;
7570         int length, cmdsent;
7571         uint32_t mbox_tmo;
7572         uint32_t rc = 0;
7573         uint32_t shdr_status, shdr_add_status;
7574         union lpfc_sli4_cfg_shdr *shdr;
7575
7576         if (cnt == 0) {
7577                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7578                                 "2518 Requested to send 0 NOP mailbox cmd\n");
7579                 return cnt;
7580         }
7581
7582         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7583         if (!mboxq) {
7584                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7585                                 "2519 Unable to allocate memory for issuing "
7586                                 "NOP mailbox command\n");
7587                 return 0;
7588         }
7589
7590         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
7591         length = (sizeof(struct lpfc_mbx_nop) -
7592                   sizeof(struct lpfc_sli4_cfg_mhdr));
7593         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7594                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
7595
7596         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
7597                 if (!phba->sli4_hba.intr_enable)
7598                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7599                 else {
7600                         mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
7601                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7602                 }
7603                 if (rc == MBX_TIMEOUT)
7604                         break;
7605                 /* Check return status */
7606                 shdr = (union lpfc_sli4_cfg_shdr *)
7607                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
7608                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
7609                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
7610                                          &shdr->response);
7611                 if (shdr_status || shdr_add_status || rc) {
7612                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7613                                         "2520 NOP mailbox command failed "
7614                                         "status x%x add_status x%x mbx "
7615                                         "status x%x\n", shdr_status,
7616                                         shdr_add_status, rc);
7617                         break;
7618                 }
7619         }
7620
7621         if (rc != MBX_TIMEOUT)
7622                 mempool_free(mboxq, phba->mbox_mem_pool);
7623
7624         return cmdsent;
7625 }
7626
7627 /**
7628  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
7629  * @phba: pointer to lpfc hba data structure.
7630  *
7631  * This routine is invoked to set up the PCI device memory space for device
7632  * with SLI-4 interface spec.
7633  *
7634  * Return codes
7635  *      0 - successful
7636  *      other values - error
7637  **/
7638 static int
7639 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
7640 {
7641         struct pci_dev *pdev;
7642         unsigned long bar0map_len, bar1map_len, bar2map_len;
7643         int error = -ENODEV;
7644         uint32_t if_type;
7645
7646         /* Obtain PCI device reference */
7647         if (!phba->pcidev)
7648                 return error;
7649         else
7650                 pdev = phba->pcidev;
7651
7652         /* Set the device DMA mask size */
7653         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
7654          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
7655                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
7656                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
7657                         return error;
7658                 }
7659         }
7660
7661         /*
7662          * The BARs and register set definitions and offset locations are
7663          * dependent on the if_type.
7664          */
7665         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7666                                   &phba->sli4_hba.sli_intf.word0)) {
7667                 return error;
7668         }
7669
7670         /* There is no SLI3 failback for SLI4 devices. */
7671         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7672             LPFC_SLI_INTF_VALID) {
7673                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7674                                 "2894 SLI_INTF reg contents invalid "
7675                                 "sli_intf reg 0x%x\n",
7676                                 phba->sli4_hba.sli_intf.word0);
7677                 return error;
7678         }
7679
7680         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7681         /*
7682          * Get the bus address of SLI4 device Bar regions and the
7683          * number of bytes required by each mapping. The mapping of the
7684          * particular PCI BARs regions is dependent on the type of
7685          * SLI4 device.
7686          */
7687         if (pci_resource_start(pdev, 0)) {
7688                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7689                 bar0map_len = pci_resource_len(pdev, 0);
7690
7691                 /*
7692                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7693                  * addr
7694                  */
7695                 phba->sli4_hba.conf_regs_memmap_p =
7696                         ioremap(phba->pci_bar0_map, bar0map_len);
7697                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7698                         dev_printk(KERN_ERR, &pdev->dev,
7699                                    "ioremap failed for SLI4 PCI config "
7700                                    "registers.\n");
7701                         goto out;
7702                 }
7703                 /* Set up BAR0 PCI config space register memory map */
7704                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7705         } else {
7706                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7707                 bar0map_len = pci_resource_len(pdev, 1);
7708                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7709                         dev_printk(KERN_ERR, &pdev->dev,
7710                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7711                         goto out;
7712                 }
7713                 phba->sli4_hba.conf_regs_memmap_p =
7714                                 ioremap(phba->pci_bar0_map, bar0map_len);
7715                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7716                         dev_printk(KERN_ERR, &pdev->dev,
7717                                 "ioremap failed for SLI4 PCI config "
7718                                 "registers.\n");
7719                                 goto out;
7720                 }
7721                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7722         }
7723
7724         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7725             (pci_resource_start(pdev, 2))) {
7726                 /*
7727                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7728                  * virtual address and setup the registers.
7729                  */
7730                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7731                 bar1map_len = pci_resource_len(pdev, 2);
7732                 phba->sli4_hba.ctrl_regs_memmap_p =
7733                                 ioremap(phba->pci_bar1_map, bar1map_len);
7734                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7735                         dev_printk(KERN_ERR, &pdev->dev,
7736                            "ioremap failed for SLI4 HBA control registers.\n");
7737                         goto out_iounmap_conf;
7738                 }
7739                 lpfc_sli4_bar1_register_memmap(phba);
7740         }
7741
7742         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7743             (pci_resource_start(pdev, 4))) {
7744                 /*
7745                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7746                  * virtual address and setup the registers.
7747                  */
7748                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7749                 bar2map_len = pci_resource_len(pdev, 4);
7750                 phba->sli4_hba.drbl_regs_memmap_p =
7751                                 ioremap(phba->pci_bar2_map, bar2map_len);
7752                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7753                         dev_printk(KERN_ERR, &pdev->dev,
7754                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7755                         goto out_iounmap_ctrl;
7756                 }
7757                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7758                 if (error)
7759                         goto out_iounmap_all;
7760         }
7761
7762         return 0;
7763
7764 out_iounmap_all:
7765         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7766 out_iounmap_ctrl:
7767         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7768 out_iounmap_conf:
7769         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7770 out:
7771         return error;
7772 }
7773
7774 /**
7775  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7776  * @phba: pointer to lpfc hba data structure.
7777  *
7778  * This routine is invoked to unset the PCI device memory space for device
7779  * with SLI-4 interface spec.
7780  **/
7781 static void
7782 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7783 {
7784         uint32_t if_type;
7785         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7786
7787         switch (if_type) {
7788         case LPFC_SLI_INTF_IF_TYPE_0:
7789                 iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7790                 iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7791                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7792                 break;
7793         case LPFC_SLI_INTF_IF_TYPE_2:
7794                 iounmap(phba->sli4_hba.conf_regs_memmap_p);
7795                 break;
7796         case LPFC_SLI_INTF_IF_TYPE_1:
7797         default:
7798                 dev_printk(KERN_ERR, &phba->pcidev->dev,
7799                            "FATAL - unsupported SLI4 interface type - %d\n",
7800                            if_type);
7801                 break;
7802         }
7803 }
7804
7805 /**
7806  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7807  * @phba: pointer to lpfc hba data structure.
7808  *
7809  * This routine is invoked to enable the MSI-X interrupt vectors to device
7810  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7811  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7812  * invoked, enables either all or nothing, depending on the current
7813  * availability of PCI vector resources. The device driver is responsible
7814  * for calling the individual request_irq() to register each MSI-X vector
7815  * with a interrupt handler, which is done in this function. Note that
7816  * later when device is unloading, the driver should always call free_irq()
7817  * on all MSI-X vectors it has done request_irq() on before calling
7818  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7819  * will be left with MSI-X enabled and leaks its vectors.
7820  *
7821  * Return codes
7822  *   0 - successful
7823  *   other values - error
7824  **/
7825 static int
7826 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7827 {
7828         int rc, i;
7829         LPFC_MBOXQ_t *pmb;
7830
7831         /* Set up MSI-X multi-message vectors */
7832         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7833                 phba->msix_entries[i].entry = i;
7834
7835         /* Configure MSI-X capability structure */
7836         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7837                                 ARRAY_SIZE(phba->msix_entries));
7838         if (rc) {
7839                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7840                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7841                 goto msi_fail_out;
7842         }
7843         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7844                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7845                                 "0477 MSI-X entry[%d]: vector=x%x "
7846                                 "message=%d\n", i,
7847                                 phba->msix_entries[i].vector,
7848                                 phba->msix_entries[i].entry);
7849         /*
7850          * Assign MSI-X vectors to interrupt handlers
7851          */
7852
7853         /* vector-0 is associated to slow-path handler */
7854         rc = request_irq(phba->msix_entries[0].vector,
7855                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7856                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7857         if (rc) {
7858                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7859                                 "0421 MSI-X slow-path request_irq failed "
7860                                 "(%d)\n", rc);
7861                 goto msi_fail_out;
7862         }
7863
7864         /* vector-1 is associated to fast-path handler */
7865         rc = request_irq(phba->msix_entries[1].vector,
7866                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7867                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7868
7869         if (rc) {
7870                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7871                                 "0429 MSI-X fast-path request_irq failed "
7872                                 "(%d)\n", rc);
7873                 goto irq_fail_out;
7874         }
7875
7876         /*
7877          * Configure HBA MSI-X attention conditions to messages
7878          */
7879         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7880
7881         if (!pmb) {
7882                 rc = -ENOMEM;
7883                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7884                                 "0474 Unable to allocate memory for issuing "
7885                                 "MBOX_CONFIG_MSI command\n");
7886                 goto mem_fail_out;
7887         }
7888         rc = lpfc_config_msi(phba, pmb);
7889         if (rc)
7890                 goto mbx_fail_out;
7891         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7892         if (rc != MBX_SUCCESS) {
7893                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7894                                 "0351 Config MSI mailbox command failed, "
7895                                 "mbxCmd x%x, mbxStatus x%x\n",
7896                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7897                 goto mbx_fail_out;
7898         }
7899
7900         /* Free memory allocated for mailbox command */
7901         mempool_free(pmb, phba->mbox_mem_pool);
7902         return rc;
7903
7904 mbx_fail_out:
7905         /* Free memory allocated for mailbox command */
7906         mempool_free(pmb, phba->mbox_mem_pool);
7907
7908 mem_fail_out:
7909         /* free the irq already requested */
7910         free_irq(phba->msix_entries[1].vector, phba);
7911
7912 irq_fail_out:
7913         /* free the irq already requested */
7914         free_irq(phba->msix_entries[0].vector, phba);
7915
7916 msi_fail_out:
7917         /* Unconfigure MSI-X capability structure */
7918         pci_disable_msix(phba->pcidev);
7919         return rc;
7920 }
7921
7922 /**
7923  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7924  * @phba: pointer to lpfc hba data structure.
7925  *
7926  * This routine is invoked to release the MSI-X vectors and then disable the
7927  * MSI-X interrupt mode to device with SLI-3 interface spec.
7928  **/
7929 static void
7930 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7931 {
7932         int i;
7933
7934         /* Free up MSI-X multi-message vectors */
7935         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7936                 free_irq(phba->msix_entries[i].vector, phba);
7937         /* Disable MSI-X */
7938         pci_disable_msix(phba->pcidev);
7939
7940         return;
7941 }
7942
7943 /**
7944  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7945  * @phba: pointer to lpfc hba data structure.
7946  *
7947  * This routine is invoked to enable the MSI interrupt mode to device with
7948  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7949  * enable the MSI vector. The device driver is responsible for calling the
7950  * request_irq() to register MSI vector with a interrupt the handler, which
7951  * is done in this function.
7952  *
7953  * Return codes
7954  *      0 - successful
7955  *      other values - error
7956  */
7957 static int
7958 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7959 {
7960         int rc;
7961
7962         rc = pci_enable_msi(phba->pcidev);
7963         if (!rc)
7964                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7965                                 "0462 PCI enable MSI mode success.\n");
7966         else {
7967                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7968                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7969                 return rc;
7970         }
7971
7972         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7973                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7974         if (rc) {
7975                 pci_disable_msi(phba->pcidev);
7976                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7977                                 "0478 MSI request_irq failed (%d)\n", rc);
7978         }
7979         return rc;
7980 }
7981
7982 /**
7983  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7984  * @phba: pointer to lpfc hba data structure.
7985  *
7986  * This routine is invoked to disable the MSI interrupt mode to device with
7987  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7988  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7989  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7990  * its vector.
7991  */
7992 static void
7993 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7994 {
7995         free_irq(phba->pcidev->irq, phba);
7996         pci_disable_msi(phba->pcidev);
7997         return;
7998 }
7999
8000 /**
8001  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
8002  * @phba: pointer to lpfc hba data structure.
8003  *
8004  * This routine is invoked to enable device interrupt and associate driver's
8005  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
8006  * spec. Depends on the interrupt mode configured to the driver, the driver
8007  * will try to fallback from the configured interrupt mode to an interrupt
8008  * mode which is supported by the platform, kernel, and device in the order
8009  * of:
8010  * MSI-X -> MSI -> IRQ.
8011  *
8012  * Return codes
8013  *   0 - successful
8014  *   other values - error
8015  **/
8016 static uint32_t
8017 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8018 {
8019         uint32_t intr_mode = LPFC_INTR_ERROR;
8020         int retval;
8021
8022         if (cfg_mode == 2) {
8023                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
8024                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
8025                 if (!retval) {
8026                         /* Now, try to enable MSI-X interrupt mode */
8027                         retval = lpfc_sli_enable_msix(phba);
8028                         if (!retval) {
8029                                 /* Indicate initialization to MSI-X mode */
8030                                 phba->intr_type = MSIX;
8031                                 intr_mode = 2;
8032                         }
8033                 }
8034         }
8035
8036         /* Fallback to MSI if MSI-X initialization failed */
8037         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8038                 retval = lpfc_sli_enable_msi(phba);
8039                 if (!retval) {
8040                         /* Indicate initialization to MSI mode */
8041                         phba->intr_type = MSI;
8042                         intr_mode = 1;
8043                 }
8044         }
8045
8046         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8047         if (phba->intr_type == NONE) {
8048                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
8049                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8050                 if (!retval) {
8051                         /* Indicate initialization to INTx mode */
8052                         phba->intr_type = INTx;
8053                         intr_mode = 0;
8054                 }
8055         }
8056         return intr_mode;
8057 }
8058
8059 /**
8060  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
8061  * @phba: pointer to lpfc hba data structure.
8062  *
8063  * This routine is invoked to disable device interrupt and disassociate the
8064  * driver's interrupt handler(s) from interrupt vector(s) to device with
8065  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
8066  * release the interrupt vector(s) for the message signaled interrupt.
8067  **/
8068 static void
8069 lpfc_sli_disable_intr(struct lpfc_hba *phba)
8070 {
8071         /* Disable the currently initialized interrupt mode */
8072         if (phba->intr_type == MSIX)
8073                 lpfc_sli_disable_msix(phba);
8074         else if (phba->intr_type == MSI)
8075                 lpfc_sli_disable_msi(phba);
8076         else if (phba->intr_type == INTx)
8077                 free_irq(phba->pcidev->irq, phba);
8078
8079         /* Reset interrupt management states */
8080         phba->intr_type = NONE;
8081         phba->sli.slistat.sli_intr = 0;
8082
8083         return;
8084 }
8085
8086 /**
8087  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
8088  * @phba: pointer to lpfc hba data structure.
8089  *
8090  * This routine is invoked to enable the MSI-X interrupt vectors to device
8091  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
8092  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
8093  * enables either all or nothing, depending on the current availability of
8094  * PCI vector resources. The device driver is responsible for calling the
8095  * individual request_irq() to register each MSI-X vector with a interrupt
8096  * handler, which is done in this function. Note that later when device is
8097  * unloading, the driver should always call free_irq() on all MSI-X vectors
8098  * it has done request_irq() on before calling pci_disable_msix(). Failure
8099  * to do so results in a BUG_ON() and a device will be left with MSI-X
8100  * enabled and leaks its vectors.
8101  *
8102  * Return codes
8103  * 0 - successful
8104  * other values - error
8105  **/
8106 static int
8107 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
8108 {
8109         int vectors, rc, index;
8110
8111         /* Set up MSI-X multi-message vectors */
8112         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
8113                 phba->sli4_hba.msix_entries[index].entry = index;
8114
8115         /* Configure MSI-X capability structure */
8116         vectors = phba->sli4_hba.cfg_eqn;
8117 enable_msix_vectors:
8118         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
8119                              vectors);
8120         if (rc > 1) {
8121                 vectors = rc;
8122                 goto enable_msix_vectors;
8123         } else if (rc) {
8124                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8125                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
8126                 goto msi_fail_out;
8127         }
8128
8129         /* Log MSI-X vector assignment */
8130         for (index = 0; index < vectors; index++)
8131                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8132                                 "0489 MSI-X entry[%d]: vector=x%x "
8133                                 "message=%d\n", index,
8134                                 phba->sli4_hba.msix_entries[index].vector,
8135                                 phba->sli4_hba.msix_entries[index].entry);
8136         /*
8137          * Assign MSI-X vectors to interrupt handlers
8138          */
8139         if (vectors > 1)
8140                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
8141                                  &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
8142                                  LPFC_SP_DRIVER_HANDLER_NAME, phba);
8143         else
8144                 /* All Interrupts need to be handled by one EQ */
8145                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
8146                                  &lpfc_sli4_intr_handler, IRQF_SHARED,
8147                                  LPFC_DRIVER_NAME, phba);
8148         if (rc) {
8149                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8150                                 "0485 MSI-X slow-path request_irq failed "
8151                                 "(%d)\n", rc);
8152                 goto msi_fail_out;
8153         }
8154
8155         /* The rest of the vector(s) are associated to fast-path handler(s) */
8156         for (index = 1; index < vectors; index++) {
8157                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
8158                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
8159                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
8160                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
8161                                  LPFC_FP_DRIVER_HANDLER_NAME,
8162                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8163                 if (rc) {
8164                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8165                                         "0486 MSI-X fast-path (%d) "
8166                                         "request_irq failed (%d)\n", index, rc);
8167                         goto cfg_fail_out;
8168                 }
8169         }
8170         phba->sli4_hba.msix_vec_nr = vectors;
8171
8172         return rc;
8173
8174 cfg_fail_out:
8175         /* free the irq already requested */
8176         for (--index; index >= 1; index--)
8177                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
8178                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8179
8180         /* free the irq already requested */
8181         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
8182
8183 msi_fail_out:
8184         /* Unconfigure MSI-X capability structure */
8185         pci_disable_msix(phba->pcidev);
8186         return rc;
8187 }
8188
8189 /**
8190  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
8191  * @phba: pointer to lpfc hba data structure.
8192  *
8193  * This routine is invoked to release the MSI-X vectors and then disable the
8194  * MSI-X interrupt mode to device with SLI-4 interface spec.
8195  **/
8196 static void
8197 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
8198 {
8199         int index;
8200
8201         /* Free up MSI-X multi-message vectors */
8202         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
8203
8204         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
8205                 free_irq(phba->sli4_hba.msix_entries[index].vector,
8206                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
8207
8208         /* Disable MSI-X */
8209         pci_disable_msix(phba->pcidev);
8210
8211         return;
8212 }
8213
8214 /**
8215  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
8216  * @phba: pointer to lpfc hba data structure.
8217  *
8218  * This routine is invoked to enable the MSI interrupt mode to device with
8219  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
8220  * to enable the MSI vector. The device driver is responsible for calling
8221  * the request_irq() to register MSI vector with a interrupt the handler,
8222  * which is done in this function.
8223  *
8224  * Return codes
8225  *      0 - successful
8226  *      other values - error
8227  **/
8228 static int
8229 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
8230 {
8231         int rc, index;
8232
8233         rc = pci_enable_msi(phba->pcidev);
8234         if (!rc)
8235                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8236                                 "0487 PCI enable MSI mode success.\n");
8237         else {
8238                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8239                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
8240                 return rc;
8241         }
8242
8243         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8244                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8245         if (rc) {
8246                 pci_disable_msi(phba->pcidev);
8247                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
8248                                 "0490 MSI request_irq failed (%d)\n", rc);
8249                 return rc;
8250         }
8251
8252         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
8253                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8254                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8255         }
8256
8257         return 0;
8258 }
8259
8260 /**
8261  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
8262  * @phba: pointer to lpfc hba data structure.
8263  *
8264  * This routine is invoked to disable the MSI interrupt mode to device with
8265  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
8266  * done request_irq() on before calling pci_disable_msi(). Failure to do so
8267  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
8268  * its vector.
8269  **/
8270 static void
8271 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
8272 {
8273         free_irq(phba->pcidev->irq, phba);
8274         pci_disable_msi(phba->pcidev);
8275         return;
8276 }
8277
8278 /**
8279  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
8280  * @phba: pointer to lpfc hba data structure.
8281  *
8282  * This routine is invoked to enable device interrupt and associate driver's
8283  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
8284  * interface spec. Depends on the interrupt mode configured to the driver,
8285  * the driver will try to fallback from the configured interrupt mode to an
8286  * interrupt mode which is supported by the platform, kernel, and device in
8287  * the order of:
8288  * MSI-X -> MSI -> IRQ.
8289  *
8290  * Return codes
8291  *      0 - successful
8292  *      other values - error
8293  **/
8294 static uint32_t
8295 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
8296 {
8297         uint32_t intr_mode = LPFC_INTR_ERROR;
8298         int retval, index;
8299
8300         if (cfg_mode == 2) {
8301                 /* Preparation before conf_msi mbox cmd */
8302                 retval = 0;
8303                 if (!retval) {
8304                         /* Now, try to enable MSI-X interrupt mode */
8305                         retval = lpfc_sli4_enable_msix(phba);
8306                         if (!retval) {
8307                                 /* Indicate initialization to MSI-X mode */
8308                                 phba->intr_type = MSIX;
8309                                 intr_mode = 2;
8310                         }
8311                 }
8312         }
8313
8314         /* Fallback to MSI if MSI-X initialization failed */
8315         if (cfg_mode >= 1 && phba->intr_type == NONE) {
8316                 retval = lpfc_sli4_enable_msi(phba);
8317                 if (!retval) {
8318                         /* Indicate initialization to MSI mode */
8319                         phba->intr_type = MSI;
8320                         intr_mode = 1;
8321                 }
8322         }
8323
8324         /* Fallback to INTx if both MSI-X/MSI initalization failed */
8325         if (phba->intr_type == NONE) {
8326                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
8327                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
8328                 if (!retval) {
8329                         /* Indicate initialization to INTx mode */
8330                         phba->intr_type = INTx;
8331                         intr_mode = 0;
8332                         for (index = 0; index < phba->cfg_fcp_eq_count;
8333                              index++) {
8334                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
8335                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
8336                         }
8337                 }
8338         }
8339         return intr_mode;
8340 }
8341
8342 /**
8343  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
8344  * @phba: pointer to lpfc hba data structure.
8345  *
8346  * This routine is invoked to disable device interrupt and disassociate
8347  * the driver's interrupt handler(s) from interrupt vector(s) to device
8348  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
8349  * will release the interrupt vector(s) for the message signaled interrupt.
8350  **/
8351 static void
8352 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
8353 {
8354         /* Disable the currently initialized interrupt mode */
8355         if (phba->intr_type == MSIX)
8356                 lpfc_sli4_disable_msix(phba);
8357         else if (phba->intr_type == MSI)
8358                 lpfc_sli4_disable_msi(phba);
8359         else if (phba->intr_type == INTx)
8360                 free_irq(phba->pcidev->irq, phba);
8361
8362         /* Reset interrupt management states */
8363         phba->intr_type = NONE;
8364         phba->sli.slistat.sli_intr = 0;
8365
8366         return;
8367 }
8368
8369 /**
8370  * lpfc_unset_hba - Unset SLI3 hba device initialization
8371  * @phba: pointer to lpfc hba data structure.
8372  *
8373  * This routine is invoked to unset the HBA device initialization steps to
8374  * a device with SLI-3 interface spec.
8375  **/
8376 static void
8377 lpfc_unset_hba(struct lpfc_hba *phba)
8378 {
8379         struct lpfc_vport *vport = phba->pport;
8380         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8381
8382         spin_lock_irq(shost->host_lock);
8383         vport->load_flag |= FC_UNLOADING;
8384         spin_unlock_irq(shost->host_lock);
8385
8386         kfree(phba->vpi_bmask);
8387         kfree(phba->vpi_ids);
8388
8389         lpfc_stop_hba_timers(phba);
8390
8391         phba->pport->work_port_events = 0;
8392
8393         lpfc_sli_hba_down(phba);
8394
8395         lpfc_sli_brdrestart(phba);
8396
8397         lpfc_sli_disable_intr(phba);
8398
8399         return;
8400 }
8401
8402 /**
8403  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
8404  * @phba: pointer to lpfc hba data structure.
8405  *
8406  * This routine is invoked to unset the HBA device initialization steps to
8407  * a device with SLI-4 interface spec.
8408  **/
8409 static void
8410 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
8411 {
8412         struct lpfc_vport *vport = phba->pport;
8413         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
8414
8415         spin_lock_irq(shost->host_lock);
8416         vport->load_flag |= FC_UNLOADING;
8417         spin_unlock_irq(shost->host_lock);
8418
8419         phba->pport->work_port_events = 0;
8420
8421         /* Stop the SLI4 device port */
8422         lpfc_stop_port(phba);
8423
8424         lpfc_sli4_disable_intr(phba);
8425
8426         /* Reset SLI4 HBA FCoE function */
8427         lpfc_pci_function_reset(phba);
8428         lpfc_sli4_queue_destroy(phba);
8429
8430         return;
8431 }
8432
8433 /**
8434  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
8435  * @phba: Pointer to HBA context object.
8436  *
8437  * This function is called in the SLI4 code path to wait for completion
8438  * of device's XRIs exchange busy. It will check the XRI exchange busy
8439  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
8440  * that, it will check the XRI exchange busy on outstanding FCP and ELS
8441  * I/Os every 30 seconds, log error message, and wait forever. Only when
8442  * all XRI exchange busy complete, the driver unload shall proceed with
8443  * invoking the function reset ioctl mailbox command to the CNA and the
8444  * the rest of the driver unload resource release.
8445  **/
8446 static void
8447 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
8448 {
8449         int wait_time = 0;
8450         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8451         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8452
8453         while (!fcp_xri_cmpl || !els_xri_cmpl) {
8454                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
8455                         if (!fcp_xri_cmpl)
8456                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8457                                                 "2877 FCP XRI exchange busy "
8458                                                 "wait time: %d seconds.\n",
8459                                                 wait_time/1000);
8460                         if (!els_xri_cmpl)
8461                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8462                                                 "2878 ELS XRI exchange busy "
8463                                                 "wait time: %d seconds.\n",
8464                                                 wait_time/1000);
8465                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
8466                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
8467                 } else {
8468                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
8469                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
8470                 }
8471                 fcp_xri_cmpl =
8472                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
8473                 els_xri_cmpl =
8474                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
8475         }
8476 }
8477
8478 /**
8479  * lpfc_sli4_hba_unset - Unset the fcoe hba
8480  * @phba: Pointer to HBA context object.
8481  *
8482  * This function is called in the SLI4 code path to reset the HBA's FCoE
8483  * function. The caller is not required to hold any lock. This routine
8484  * issues PCI function reset mailbox command to reset the FCoE function.
8485  * At the end of the function, it calls lpfc_hba_down_post function to
8486  * free any pending commands.
8487  **/
8488 static void
8489 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
8490 {
8491         int wait_cnt = 0;
8492         LPFC_MBOXQ_t *mboxq;
8493         struct pci_dev *pdev = phba->pcidev;
8494
8495         lpfc_stop_hba_timers(phba);
8496         phba->sli4_hba.intr_enable = 0;
8497
8498         /*
8499          * Gracefully wait out the potential current outstanding asynchronous
8500          * mailbox command.
8501          */
8502
8503         /* First, block any pending async mailbox command from posted */
8504         spin_lock_irq(&phba->hbalock);
8505         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8506         spin_unlock_irq(&phba->hbalock);
8507         /* Now, trying to wait it out if we can */
8508         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8509                 msleep(10);
8510                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
8511                         break;
8512         }
8513         /* Forcefully release the outstanding mailbox command if timed out */
8514         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
8515                 spin_lock_irq(&phba->hbalock);
8516                 mboxq = phba->sli.mbox_active;
8517                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
8518                 __lpfc_mbox_cmpl_put(phba, mboxq);
8519                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8520                 phba->sli.mbox_active = NULL;
8521                 spin_unlock_irq(&phba->hbalock);
8522         }
8523
8524         /* Abort all iocbs associated with the hba */
8525         lpfc_sli_hba_iocb_abort(phba);
8526
8527         /* Wait for completion of device XRI exchange busy */
8528         lpfc_sli4_xri_exchange_busy_wait(phba);
8529
8530         /* Disable PCI subsystem interrupt */
8531         lpfc_sli4_disable_intr(phba);
8532
8533         /* Disable SR-IOV if enabled */
8534         if (phba->cfg_sriov_nr_virtfn)
8535                 pci_disable_sriov(pdev);
8536
8537         /* Stop kthread signal shall trigger work_done one more time */
8538         kthread_stop(phba->worker_thread);
8539
8540         /* Reset SLI4 HBA FCoE function */
8541         lpfc_pci_function_reset(phba);
8542         lpfc_sli4_queue_destroy(phba);
8543
8544         /* Stop the SLI4 device port */
8545         phba->pport->work_port_events = 0;
8546 }
8547
8548  /**
8549  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
8550  * @phba: Pointer to HBA context object.
8551  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8552  *
8553  * This function is called in the SLI4 code path to read the port's
8554  * sli4 capabilities.
8555  *
8556  * This function may be be called from any context that can block-wait
8557  * for the completion.  The expectation is that this routine is called
8558  * typically from probe_one or from the online routine.
8559  **/
8560 int
8561 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8562 {
8563         int rc;
8564         struct lpfc_mqe *mqe;
8565         struct lpfc_pc_sli4_params *sli4_params;
8566         uint32_t mbox_tmo;
8567
8568         rc = 0;
8569         mqe = &mboxq->u.mqe;
8570
8571         /* Read the port's SLI4 Parameters port capabilities */
8572         lpfc_pc_sli4_params(mboxq);
8573         if (!phba->sli4_hba.intr_enable)
8574                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8575         else {
8576                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8577                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8578         }
8579
8580         if (unlikely(rc))
8581                 return 1;
8582
8583         sli4_params = &phba->sli4_hba.pc_sli4_params;
8584         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
8585         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
8586         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
8587         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
8588                                              &mqe->un.sli4_params);
8589         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
8590                                              &mqe->un.sli4_params);
8591         sli4_params->proto_types = mqe->un.sli4_params.word3;
8592         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
8593         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
8594         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
8595         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
8596         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
8597         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
8598         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
8599         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
8600         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
8601         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
8602         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
8603         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
8604         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
8605         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
8606         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
8607         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
8608         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
8609         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
8610         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
8611         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
8612
8613         /* Make sure that sge_supp_len can be handled by the driver */
8614         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8615                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8616
8617         return rc;
8618 }
8619
8620 /**
8621  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
8622  * @phba: Pointer to HBA context object.
8623  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
8624  *
8625  * This function is called in the SLI4 code path to read the port's
8626  * sli4 capabilities.
8627  *
8628  * This function may be be called from any context that can block-wait
8629  * for the completion.  The expectation is that this routine is called
8630  * typically from probe_one or from the online routine.
8631  **/
8632 int
8633 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
8634 {
8635         int rc;
8636         struct lpfc_mqe *mqe = &mboxq->u.mqe;
8637         struct lpfc_pc_sli4_params *sli4_params;
8638         uint32_t mbox_tmo;
8639         int length;
8640         struct lpfc_sli4_parameters *mbx_sli4_parameters;
8641
8642         /*
8643          * By default, the driver assumes the SLI4 port requires RPI
8644          * header postings.  The SLI4_PARAM response will correct this
8645          * assumption.
8646          */
8647         phba->sli4_hba.rpi_hdrs_in_use = 1;
8648
8649         /* Read the port's SLI4 Config Parameters */
8650         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
8651                   sizeof(struct lpfc_sli4_cfg_mhdr));
8652         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
8653                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
8654                          length, LPFC_SLI4_MBX_EMBED);
8655         if (!phba->sli4_hba.intr_enable)
8656                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
8657         else {
8658                 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
8659                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
8660         }
8661         if (unlikely(rc))
8662                 return rc;
8663         sli4_params = &phba->sli4_hba.pc_sli4_params;
8664         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
8665         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
8666         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
8667         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
8668         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
8669                                              mbx_sli4_parameters);
8670         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
8671                                              mbx_sli4_parameters);
8672         if (bf_get(cfg_phwq, mbx_sli4_parameters))
8673                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
8674         else
8675                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
8676         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
8677         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
8678         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
8679         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8680         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8681         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8682         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8683                                             mbx_sli4_parameters);
8684         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8685                                            mbx_sli4_parameters);
8686         phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters);
8687         phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters);
8688
8689         /* Make sure that sge_supp_len can be handled by the driver */
8690         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8691                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8692
8693         return 0;
8694 }
8695
8696 /**
8697  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8698  * @pdev: pointer to PCI device
8699  * @pid: pointer to PCI device identifier
8700  *
8701  * This routine is to be called to attach a device with SLI-3 interface spec
8702  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8703  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8704  * information of the device and driver to see if the driver state that it can
8705  * support this kind of device. If the match is successful, the driver core
8706  * invokes this routine. If this routine determines it can claim the HBA, it
8707  * does all the initialization that it needs to do to handle the HBA properly.
8708  *
8709  * Return code
8710  *      0 - driver can claim the device
8711  *      negative value - driver can not claim the device
8712  **/
8713 static int __devinit
8714 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8715 {
8716         struct lpfc_hba   *phba;
8717         struct lpfc_vport *vport = NULL;
8718         struct Scsi_Host  *shost = NULL;
8719         int error;
8720         uint32_t cfg_mode, intr_mode;
8721
8722         /* Allocate memory for HBA structure */
8723         phba = lpfc_hba_alloc(pdev);
8724         if (!phba)
8725                 return -ENOMEM;
8726
8727         /* Perform generic PCI device enabling operation */
8728         error = lpfc_enable_pci_dev(phba);
8729         if (error)
8730                 goto out_free_phba;
8731
8732         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8733         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8734         if (error)
8735                 goto out_disable_pci_dev;
8736
8737         /* Set up SLI-3 specific device PCI memory space */
8738         error = lpfc_sli_pci_mem_setup(phba);
8739         if (error) {
8740                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8741                                 "1402 Failed to set up pci memory space.\n");
8742                 goto out_disable_pci_dev;
8743         }
8744
8745         /* Set up phase-1 common device driver resources */
8746         error = lpfc_setup_driver_resource_phase1(phba);
8747         if (error) {
8748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8749                                 "1403 Failed to set up driver resource.\n");
8750                 goto out_unset_pci_mem_s3;
8751         }
8752
8753         /* Set up SLI-3 specific device driver resources */
8754         error = lpfc_sli_driver_resource_setup(phba);
8755         if (error) {
8756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8757                                 "1404 Failed to set up driver resource.\n");
8758                 goto out_unset_pci_mem_s3;
8759         }
8760
8761         /* Initialize and populate the iocb list per host */
8762         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8763         if (error) {
8764                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8765                                 "1405 Failed to initialize iocb list.\n");
8766                 goto out_unset_driver_resource_s3;
8767         }
8768
8769         /* Set up common device driver resources */
8770         error = lpfc_setup_driver_resource_phase2(phba);
8771         if (error) {
8772                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8773                                 "1406 Failed to set up driver resource.\n");
8774                 goto out_free_iocb_list;
8775         }
8776
8777         /* Get the default values for Model Name and Description */
8778         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
8779
8780         /* Create SCSI host to the physical port */
8781         error = lpfc_create_shost(phba);
8782         if (error) {
8783                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8784                                 "1407 Failed to create scsi host.\n");
8785                 goto out_unset_driver_resource;
8786         }
8787
8788         /* Configure sysfs attributes */
8789         vport = phba->pport;
8790         error = lpfc_alloc_sysfs_attr(vport);
8791         if (error) {
8792                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8793                                 "1476 Failed to allocate sysfs attr\n");
8794                 goto out_destroy_shost;
8795         }
8796
8797         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8798         /* Now, trying to enable interrupt and bring up the device */
8799         cfg_mode = phba->cfg_use_msi;
8800         while (true) {
8801                 /* Put device to a known state before enabling interrupt */
8802                 lpfc_stop_port(phba);
8803                 /* Configure and enable interrupt */
8804                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8805                 if (intr_mode == LPFC_INTR_ERROR) {
8806                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8807                                         "0431 Failed to enable interrupt.\n");
8808                         error = -ENODEV;
8809                         goto out_free_sysfs_attr;
8810                 }
8811                 /* SLI-3 HBA setup */
8812                 if (lpfc_sli_hba_setup(phba)) {
8813                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8814                                         "1477 Failed to set up hba\n");
8815                         error = -ENODEV;
8816                         goto out_remove_device;
8817                 }
8818
8819                 /* Wait 50ms for the interrupts of previous mailbox commands */
8820                 msleep(50);
8821                 /* Check active interrupts on message signaled interrupts */
8822                 if (intr_mode == 0 ||
8823                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8824                         /* Log the current active interrupt mode */
8825                         phba->intr_mode = intr_mode;
8826                         lpfc_log_intr_mode(phba, intr_mode);
8827                         break;
8828                 } else {
8829                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8830                                         "0447 Configure interrupt mode (%d) "
8831                                         "failed active interrupt test.\n",
8832                                         intr_mode);
8833                         /* Disable the current interrupt mode */
8834                         lpfc_sli_disable_intr(phba);
8835                         /* Try next level of interrupt mode */
8836                         cfg_mode = --intr_mode;
8837                 }
8838         }
8839
8840         /* Perform post initialization setup */
8841         lpfc_post_init_setup(phba);
8842
8843         /* Check if there are static vports to be created. */
8844         lpfc_create_static_vport(phba);
8845
8846         return 0;
8847
8848 out_remove_device:
8849         lpfc_unset_hba(phba);
8850 out_free_sysfs_attr:
8851         lpfc_free_sysfs_attr(vport);
8852 out_destroy_shost:
8853         lpfc_destroy_shost(phba);
8854 out_unset_driver_resource:
8855         lpfc_unset_driver_resource_phase2(phba);
8856 out_free_iocb_list:
8857         lpfc_free_iocb_list(phba);
8858 out_unset_driver_resource_s3:
8859         lpfc_sli_driver_resource_unset(phba);
8860 out_unset_pci_mem_s3:
8861         lpfc_sli_pci_mem_unset(phba);
8862 out_disable_pci_dev:
8863         lpfc_disable_pci_dev(phba);
8864         if (shost)
8865                 scsi_host_put(shost);
8866 out_free_phba:
8867         lpfc_hba_free(phba);
8868         return error;
8869 }
8870
8871 /**
8872  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8873  * @pdev: pointer to PCI device
8874  *
8875  * This routine is to be called to disattach a device with SLI-3 interface
8876  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8877  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8878  * device to be removed from the PCI subsystem properly.
8879  **/
8880 static void __devexit
8881 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8882 {
8883         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8884         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8885         struct lpfc_vport **vports;
8886         struct lpfc_hba   *phba = vport->phba;
8887         int i;
8888         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8889
8890         spin_lock_irq(&phba->hbalock);
8891         vport->load_flag |= FC_UNLOADING;
8892         spin_unlock_irq(&phba->hbalock);
8893
8894         lpfc_free_sysfs_attr(vport);
8895
8896         /* Release all the vports against this physical port */
8897         vports = lpfc_create_vport_work_array(phba);
8898         if (vports != NULL)
8899                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
8900                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
8901                                 continue;
8902                         fc_vport_terminate(vports[i]->fc_vport);
8903                 }
8904         lpfc_destroy_vport_work_array(phba, vports);
8905
8906         /* Remove FC host and then SCSI host with the physical port */
8907         fc_remove_host(shost);
8908         scsi_remove_host(shost);
8909         lpfc_cleanup(vport);
8910
8911         /*
8912          * Bring down the SLI Layer. This step disable all interrupts,
8913          * clears the rings, discards all mailbox commands, and resets
8914          * the HBA.
8915          */
8916
8917         /* HBA interrupt will be disabled after this call */
8918         lpfc_sli_hba_down(phba);
8919         /* Stop kthread signal shall trigger work_done one more time */
8920         kthread_stop(phba->worker_thread);
8921         /* Final cleanup of txcmplq and reset the HBA */
8922         lpfc_sli_brdrestart(phba);
8923
8924         kfree(phba->vpi_bmask);
8925         kfree(phba->vpi_ids);
8926
8927         lpfc_stop_hba_timers(phba);
8928         spin_lock_irq(&phba->hbalock);
8929         list_del_init(&vport->listentry);
8930         spin_unlock_irq(&phba->hbalock);
8931
8932         lpfc_debugfs_terminate(vport);
8933
8934         /* Disable SR-IOV if enabled */
8935         if (phba->cfg_sriov_nr_virtfn)
8936                 pci_disable_sriov(pdev);
8937
8938         /* Disable interrupt */
8939         lpfc_sli_disable_intr(phba);
8940
8941         pci_set_drvdata(pdev, NULL);
8942         scsi_host_put(shost);
8943
8944         /*
8945          * Call scsi_free before mem_free since scsi bufs are released to their
8946          * corresponding pools here.
8947          */
8948         lpfc_scsi_free(phba);
8949         lpfc_mem_free_all(phba);
8950
8951         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8952                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8953
8954         /* Free resources associated with SLI2 interface */
8955         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8956                           phba->slim2p.virt, phba->slim2p.phys);
8957
8958         /* unmap adapter SLIM and Control Registers */
8959         iounmap(phba->ctrl_regs_memmap_p);
8960         iounmap(phba->slim_memmap_p);
8961
8962         lpfc_hba_free(phba);
8963
8964         pci_release_selected_regions(pdev, bars);
8965         pci_disable_device(pdev);
8966 }
8967
8968 /**
8969  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8970  * @pdev: pointer to PCI device
8971  * @msg: power management message
8972  *
8973  * This routine is to be called from the kernel's PCI subsystem to support
8974  * system Power Management (PM) to device with SLI-3 interface spec. When
8975  * PM invokes this method, it quiesces the device by stopping the driver's
8976  * worker thread for the device, turning off device's interrupt and DMA,
8977  * and bring the device offline. Note that as the driver implements the
8978  * minimum PM requirements to a power-aware driver's PM support for the
8979  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8980  * to the suspend() method call will be treated as SUSPEND and the driver will
8981  * fully reinitialize its device during resume() method call, the driver will
8982  * set device to PCI_D3hot state in PCI config space instead of setting it
8983  * according to the @msg provided by the PM.
8984  *
8985  * Return code
8986  *      0 - driver suspended the device
8987  *      Error otherwise
8988  **/
8989 static int
8990 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8991 {
8992         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8993         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8994
8995         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8996                         "0473 PCI device Power Management suspend.\n");
8997
8998         /* Bring down the device */
8999         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9000         lpfc_offline(phba);
9001         kthread_stop(phba->worker_thread);
9002
9003         /* Disable interrupt from device */
9004         lpfc_sli_disable_intr(phba);
9005
9006         /* Save device state to PCI config space */
9007         pci_save_state(pdev);
9008         pci_set_power_state(pdev, PCI_D3hot);
9009
9010         return 0;
9011 }
9012
9013 /**
9014  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
9015  * @pdev: pointer to PCI device
9016  *
9017  * This routine is to be called from the kernel's PCI subsystem to support
9018  * system Power Management (PM) to device with SLI-3 interface spec. When PM
9019  * invokes this method, it restores the device's PCI config space state and
9020  * fully reinitializes the device and brings it online. Note that as the
9021  * driver implements the minimum PM requirements to a power-aware driver's
9022  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
9023  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
9024  * driver will fully reinitialize its device during resume() method call,
9025  * the device will be set to PCI_D0 directly in PCI config space before
9026  * restoring the state.
9027  *
9028  * Return code
9029  *      0 - driver suspended the device
9030  *      Error otherwise
9031  **/
9032 static int
9033 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
9034 {
9035         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9036         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9037         uint32_t intr_mode;
9038         int error;
9039
9040         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9041                         "0452 PCI device Power Management resume.\n");
9042
9043         /* Restore device state from PCI config space */
9044         pci_set_power_state(pdev, PCI_D0);
9045         pci_restore_state(pdev);
9046
9047         /*
9048          * As the new kernel behavior of pci_restore_state() API call clears
9049          * device saved_state flag, need to save the restored state again.
9050          */
9051         pci_save_state(pdev);
9052
9053         if (pdev->is_busmaster)
9054                 pci_set_master(pdev);
9055
9056         /* Startup the kernel thread for this host adapter. */
9057         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9058                                         "lpfc_worker_%d", phba->brd_no);
9059         if (IS_ERR(phba->worker_thread)) {
9060                 error = PTR_ERR(phba->worker_thread);
9061                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9062                                 "0434 PM resume failed to start worker "
9063                                 "thread: error=x%x.\n", error);
9064                 return error;
9065         }
9066
9067         /* Configure and enable interrupt */
9068         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9069         if (intr_mode == LPFC_INTR_ERROR) {
9070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9071                                 "0430 PM resume Failed to enable interrupt\n");
9072                 return -EIO;
9073         } else
9074                 phba->intr_mode = intr_mode;
9075
9076         /* Restart HBA and bring it online */
9077         lpfc_sli_brdrestart(phba);
9078         lpfc_online(phba);
9079
9080         /* Log the current active interrupt mode */
9081         lpfc_log_intr_mode(phba, phba->intr_mode);
9082
9083         return 0;
9084 }
9085
9086 /**
9087  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
9088  * @phba: pointer to lpfc hba data structure.
9089  *
9090  * This routine is called to prepare the SLI3 device for PCI slot recover. It
9091  * aborts all the outstanding SCSI I/Os to the pci device.
9092  **/
9093 static void
9094 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
9095 {
9096         struct lpfc_sli *psli = &phba->sli;
9097         struct lpfc_sli_ring  *pring;
9098
9099         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9100                         "2723 PCI channel I/O abort preparing for recovery\n");
9101
9102         /*
9103          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9104          * and let the SCSI mid-layer to retry them to recover.
9105          */
9106         pring = &psli->ring[psli->fcp_ring];
9107         lpfc_sli_abort_iocb_ring(phba, pring);
9108 }
9109
9110 /**
9111  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
9112  * @phba: pointer to lpfc hba data structure.
9113  *
9114  * This routine is called to prepare the SLI3 device for PCI slot reset. It
9115  * disables the device interrupt and pci device, and aborts the internal FCP
9116  * pending I/Os.
9117  **/
9118 static void
9119 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
9120 {
9121         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9122                         "2710 PCI channel disable preparing for reset\n");
9123
9124         /* Block any management I/Os to the device */
9125         lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT);
9126
9127         /* Block all SCSI devices' I/Os on the host */
9128         lpfc_scsi_dev_block(phba);
9129
9130         /* stop all timers */
9131         lpfc_stop_hba_timers(phba);
9132
9133         /* Disable interrupt and pci device */
9134         lpfc_sli_disable_intr(phba);
9135         pci_disable_device(phba->pcidev);
9136
9137         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9138         lpfc_sli_flush_fcp_rings(phba);
9139 }
9140
9141 /**
9142  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
9143  * @phba: pointer to lpfc hba data structure.
9144  *
9145  * This routine is called to prepare the SLI3 device for PCI slot permanently
9146  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9147  * pending I/Os.
9148  **/
9149 static void
9150 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9151 {
9152         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9153                         "2711 PCI channel permanent disable for failure\n");
9154         /* Block all SCSI devices' I/Os on the host */
9155         lpfc_scsi_dev_block(phba);
9156
9157         /* stop all timers */
9158         lpfc_stop_hba_timers(phba);
9159
9160         /* Clean up all driver's outstanding SCSI I/Os */
9161         lpfc_sli_flush_fcp_rings(phba);
9162 }
9163
9164 /**
9165  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
9166  * @pdev: pointer to PCI device.
9167  * @state: the current PCI connection state.
9168  *
9169  * This routine is called from the PCI subsystem for I/O error handling to
9170  * device with SLI-3 interface spec. This function is called by the PCI
9171  * subsystem after a PCI bus error affecting this device has been detected.
9172  * When this function is invoked, it will need to stop all the I/Os and
9173  * interrupt(s) to the device. Once that is done, it will return
9174  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
9175  * as desired.
9176  *
9177  * Return codes
9178  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
9179  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9180  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9181  **/
9182 static pci_ers_result_t
9183 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
9184 {
9185         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9186         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9187
9188         switch (state) {
9189         case pci_channel_io_normal:
9190                 /* Non-fatal error, prepare for recovery */
9191                 lpfc_sli_prep_dev_for_recover(phba);
9192                 return PCI_ERS_RESULT_CAN_RECOVER;
9193         case pci_channel_io_frozen:
9194                 /* Fatal error, prepare for slot reset */
9195                 lpfc_sli_prep_dev_for_reset(phba);
9196                 return PCI_ERS_RESULT_NEED_RESET;
9197         case pci_channel_io_perm_failure:
9198                 /* Permanent failure, prepare for device down */
9199                 lpfc_sli_prep_dev_for_perm_failure(phba);
9200                 return PCI_ERS_RESULT_DISCONNECT;
9201         default:
9202                 /* Unknown state, prepare and request slot reset */
9203                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9204                                 "0472 Unknown PCI error state: x%x\n", state);
9205                 lpfc_sli_prep_dev_for_reset(phba);
9206                 return PCI_ERS_RESULT_NEED_RESET;
9207         }
9208 }
9209
9210 /**
9211  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
9212  * @pdev: pointer to PCI device.
9213  *
9214  * This routine is called from the PCI subsystem for error handling to
9215  * device with SLI-3 interface spec. This is called after PCI bus has been
9216  * reset to restart the PCI card from scratch, as if from a cold-boot.
9217  * During the PCI subsystem error recovery, after driver returns
9218  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9219  * recovery and then call this routine before calling the .resume method
9220  * to recover the device. This function will initialize the HBA device,
9221  * enable the interrupt, but it will just put the HBA to offline state
9222  * without passing any I/O traffic.
9223  *
9224  * Return codes
9225  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9226  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9227  */
9228 static pci_ers_result_t
9229 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
9230 {
9231         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9232         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9233         struct lpfc_sli *psli = &phba->sli;
9234         uint32_t intr_mode;
9235
9236         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9237         if (pci_enable_device_mem(pdev)) {
9238                 printk(KERN_ERR "lpfc: Cannot re-enable "
9239                         "PCI device after reset.\n");
9240                 return PCI_ERS_RESULT_DISCONNECT;
9241         }
9242
9243         pci_restore_state(pdev);
9244
9245         /*
9246          * As the new kernel behavior of pci_restore_state() API call clears
9247          * device saved_state flag, need to save the restored state again.
9248          */
9249         pci_save_state(pdev);
9250
9251         if (pdev->is_busmaster)
9252                 pci_set_master(pdev);
9253
9254         spin_lock_irq(&phba->hbalock);
9255         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9256         spin_unlock_irq(&phba->hbalock);
9257
9258         /* Configure and enable interrupt */
9259         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
9260         if (intr_mode == LPFC_INTR_ERROR) {
9261                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9262                                 "0427 Cannot re-enable interrupt after "
9263                                 "slot reset.\n");
9264                 return PCI_ERS_RESULT_DISCONNECT;
9265         } else
9266                 phba->intr_mode = intr_mode;
9267
9268         /* Take device offline, it will perform cleanup */
9269         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9270         lpfc_offline(phba);
9271         lpfc_sli_brdrestart(phba);
9272
9273         /* Log the current active interrupt mode */
9274         lpfc_log_intr_mode(phba, phba->intr_mode);
9275
9276         return PCI_ERS_RESULT_RECOVERED;
9277 }
9278
9279 /**
9280  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
9281  * @pdev: pointer to PCI device
9282  *
9283  * This routine is called from the PCI subsystem for error handling to device
9284  * with SLI-3 interface spec. It is called when kernel error recovery tells
9285  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9286  * error recovery. After this call, traffic can start to flow from this device
9287  * again.
9288  */
9289 static void
9290 lpfc_io_resume_s3(struct pci_dev *pdev)
9291 {
9292         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9293         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9294
9295         /* Bring device online, it will be no-op for non-fatal error resume */
9296         lpfc_online(phba);
9297
9298         /* Clean up Advanced Error Reporting (AER) if needed */
9299         if (phba->hba_flag & HBA_AER_ENABLED)
9300                 pci_cleanup_aer_uncorrect_error_status(pdev);
9301 }
9302
9303 /**
9304  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
9305  * @phba: pointer to lpfc hba data structure.
9306  *
9307  * returns the number of ELS/CT IOCBs to reserve
9308  **/
9309 int
9310 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
9311 {
9312         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
9313
9314         if (phba->sli_rev == LPFC_SLI_REV4) {
9315                 if (max_xri <= 100)
9316                         return 10;
9317                 else if (max_xri <= 256)
9318                         return 25;
9319                 else if (max_xri <= 512)
9320                         return 50;
9321                 else if (max_xri <= 1024)
9322                         return 100;
9323                 else if (max_xri <= 1536)
9324                         return 150;
9325                 else if (max_xri <= 2048)
9326                         return 200;
9327                 else
9328                         return 250;
9329         } else
9330                 return 0;
9331 }
9332
9333 /**
9334  * lpfc_write_firmware - attempt to write a firmware image to the port
9335  * @phba: pointer to lpfc hba data structure.
9336  * @fw: pointer to firmware image returned from request_firmware.
9337  *
9338  * returns the number of bytes written if write is successful.
9339  * returns a negative error value if there were errors.
9340  * returns 0 if firmware matches currently active firmware on port.
9341  **/
9342 int
9343 lpfc_write_firmware(struct lpfc_hba *phba, const struct firmware *fw)
9344 {
9345         char fwrev[FW_REV_STR_SIZE];
9346         struct lpfc_grp_hdr *image = (struct lpfc_grp_hdr *)fw->data;
9347         struct list_head dma_buffer_list;
9348         int i, rc = 0;
9349         struct lpfc_dmabuf *dmabuf, *next;
9350         uint32_t offset = 0, temp_offset = 0;
9351
9352         INIT_LIST_HEAD(&dma_buffer_list);
9353         if ((be32_to_cpu(image->magic_number) != LPFC_GROUP_OJECT_MAGIC_NUM) ||
9354             (bf_get_be32(lpfc_grp_hdr_file_type, image) !=
9355              LPFC_FILE_TYPE_GROUP) ||
9356             (bf_get_be32(lpfc_grp_hdr_id, image) != LPFC_FILE_ID_GROUP) ||
9357             (be32_to_cpu(image->size) != fw->size)) {
9358                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9359                                 "3022 Invalid FW image found. "
9360                                 "Magic:%x Type:%x ID:%x\n",
9361                                 be32_to_cpu(image->magic_number),
9362                                 bf_get_be32(lpfc_grp_hdr_file_type, image),
9363                                 bf_get_be32(lpfc_grp_hdr_id, image));
9364                 return -EINVAL;
9365         }
9366         lpfc_decode_firmware_rev(phba, fwrev, 1);
9367         if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) {
9368                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9369                                 "3023 Updating Firmware. Current Version:%s "
9370                                 "New Version:%s\n",
9371                                 fwrev, image->revision);
9372                 for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) {
9373                         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf),
9374                                          GFP_KERNEL);
9375                         if (!dmabuf) {
9376                                 rc = -ENOMEM;
9377                                 goto out;
9378                         }
9379                         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9380                                                           SLI4_PAGE_SIZE,
9381                                                           &dmabuf->phys,
9382                                                           GFP_KERNEL);
9383                         if (!dmabuf->virt) {
9384                                 kfree(dmabuf);
9385                                 rc = -ENOMEM;
9386                                 goto out;
9387                         }
9388                         list_add_tail(&dmabuf->list, &dma_buffer_list);
9389                 }
9390                 while (offset < fw->size) {
9391                         temp_offset = offset;
9392                         list_for_each_entry(dmabuf, &dma_buffer_list, list) {
9393                                 if (temp_offset + SLI4_PAGE_SIZE > fw->size) {
9394                                         memcpy(dmabuf->virt,
9395                                                fw->data + temp_offset,
9396                                                fw->size - temp_offset);
9397                                         temp_offset = fw->size;
9398                                         break;
9399                                 }
9400                                 memcpy(dmabuf->virt, fw->data + temp_offset,
9401                                        SLI4_PAGE_SIZE);
9402                                 temp_offset += SLI4_PAGE_SIZE;
9403                         }
9404                         rc = lpfc_wr_object(phba, &dma_buffer_list,
9405                                     (fw->size - offset), &offset);
9406                         if (rc) {
9407                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9408                                                 "3024 Firmware update failed. "
9409                                                 "%d\n", rc);
9410                                 goto out;
9411                         }
9412                 }
9413                 rc = offset;
9414         }
9415 out:
9416         list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) {
9417                 list_del(&dmabuf->list);
9418                 dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE,
9419                                   dmabuf->virt, dmabuf->phys);
9420                 kfree(dmabuf);
9421         }
9422         return rc;
9423 }
9424
9425 /**
9426  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
9427  * @pdev: pointer to PCI device
9428  * @pid: pointer to PCI device identifier
9429  *
9430  * This routine is called from the kernel's PCI subsystem to device with
9431  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9432  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
9433  * information of the device and driver to see if the driver state that it
9434  * can support this kind of device. If the match is successful, the driver
9435  * core invokes this routine. If this routine determines it can claim the HBA,
9436  * it does all the initialization that it needs to do to handle the HBA
9437  * properly.
9438  *
9439  * Return code
9440  *      0 - driver can claim the device
9441  *      negative value - driver can not claim the device
9442  **/
9443 static int __devinit
9444 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
9445 {
9446         struct lpfc_hba   *phba;
9447         struct lpfc_vport *vport = NULL;
9448         struct Scsi_Host  *shost = NULL;
9449         int error;
9450         uint32_t cfg_mode, intr_mode;
9451         int mcnt;
9452         int adjusted_fcp_eq_count;
9453         const struct firmware *fw;
9454         uint8_t file_name[16];
9455
9456         /* Allocate memory for HBA structure */
9457         phba = lpfc_hba_alloc(pdev);
9458         if (!phba)
9459                 return -ENOMEM;
9460
9461         /* Perform generic PCI device enabling operation */
9462         error = lpfc_enable_pci_dev(phba);
9463         if (error)
9464                 goto out_free_phba;
9465
9466         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
9467         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
9468         if (error)
9469                 goto out_disable_pci_dev;
9470
9471         /* Set up SLI-4 specific device PCI memory space */
9472         error = lpfc_sli4_pci_mem_setup(phba);
9473         if (error) {
9474                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9475                                 "1410 Failed to set up pci memory space.\n");
9476                 goto out_disable_pci_dev;
9477         }
9478
9479         /* Set up phase-1 common device driver resources */
9480         error = lpfc_setup_driver_resource_phase1(phba);
9481         if (error) {
9482                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9483                                 "1411 Failed to set up driver resource.\n");
9484                 goto out_unset_pci_mem_s4;
9485         }
9486
9487         /* Set up SLI-4 Specific device driver resources */
9488         error = lpfc_sli4_driver_resource_setup(phba);
9489         if (error) {
9490                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9491                                 "1412 Failed to set up driver resource.\n");
9492                 goto out_unset_pci_mem_s4;
9493         }
9494
9495         /* Initialize and populate the iocb list per host */
9496
9497         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9498                         "2821 initialize iocb list %d.\n",
9499                         phba->cfg_iocb_cnt*1024);
9500         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
9501
9502         if (error) {
9503                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9504                                 "1413 Failed to initialize iocb list.\n");
9505                 goto out_unset_driver_resource_s4;
9506         }
9507
9508         INIT_LIST_HEAD(&phba->active_rrq_list);
9509         INIT_LIST_HEAD(&phba->fcf.fcf_pri_list);
9510
9511         /* Set up common device driver resources */
9512         error = lpfc_setup_driver_resource_phase2(phba);
9513         if (error) {
9514                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9515                                 "1414 Failed to set up driver resource.\n");
9516                 goto out_free_iocb_list;
9517         }
9518
9519         /* Get the default values for Model Name and Description */
9520         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
9521
9522         /* Create SCSI host to the physical port */
9523         error = lpfc_create_shost(phba);
9524         if (error) {
9525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9526                                 "1415 Failed to create scsi host.\n");
9527                 goto out_unset_driver_resource;
9528         }
9529
9530         /* Configure sysfs attributes */
9531         vport = phba->pport;
9532         error = lpfc_alloc_sysfs_attr(vport);
9533         if (error) {
9534                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9535                                 "1416 Failed to allocate sysfs attr\n");
9536                 goto out_destroy_shost;
9537         }
9538
9539         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
9540         /* Now, trying to enable interrupt and bring up the device */
9541         cfg_mode = phba->cfg_use_msi;
9542         while (true) {
9543                 /* Put device to a known state before enabling interrupt */
9544                 lpfc_stop_port(phba);
9545                 /* Configure and enable interrupt */
9546                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
9547                 if (intr_mode == LPFC_INTR_ERROR) {
9548                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9549                                         "0426 Failed to enable interrupt.\n");
9550                         error = -ENODEV;
9551                         goto out_free_sysfs_attr;
9552                 }
9553                 /* Default to single EQ for non-MSI-X */
9554                 if (phba->intr_type != MSIX)
9555                         adjusted_fcp_eq_count = 0;
9556                 else if (phba->sli4_hba.msix_vec_nr <
9557                                         phba->cfg_fcp_eq_count + 1)
9558                         adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
9559                 else
9560                         adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
9561                 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
9562                 /* Set up SLI-4 HBA */
9563                 if (lpfc_sli4_hba_setup(phba)) {
9564                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9565                                         "1421 Failed to set up hba\n");
9566                         error = -ENODEV;
9567                         goto out_disable_intr;
9568                 }
9569
9570                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
9571                 if (intr_mode != 0)
9572                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
9573                                                             LPFC_ACT_INTR_CNT);
9574
9575                 /* Check active interrupts received only for MSI/MSI-X */
9576                 if (intr_mode == 0 ||
9577                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
9578                         /* Log the current active interrupt mode */
9579                         phba->intr_mode = intr_mode;
9580                         lpfc_log_intr_mode(phba, intr_mode);
9581                         break;
9582                 }
9583                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9584                                 "0451 Configure interrupt mode (%d) "
9585                                 "failed active interrupt test.\n",
9586                                 intr_mode);
9587                 /* Unset the previous SLI-4 HBA setup. */
9588                 /*
9589                  * TODO:  Is this operation compatible with IF TYPE 2
9590                  * devices?  All port state is deleted and cleared.
9591                  */
9592                 lpfc_sli4_unset_hba(phba);
9593                 /* Try next level of interrupt mode */
9594                 cfg_mode = --intr_mode;
9595         }
9596
9597         /* Perform post initialization setup */
9598         lpfc_post_init_setup(phba);
9599
9600         /* check for firmware upgrade or downgrade (if_type 2 only) */
9601         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
9602             LPFC_SLI_INTF_IF_TYPE_2) {
9603                 snprintf(file_name, 16, "%s.grp", phba->ModelName);
9604                 error = request_firmware(&fw, file_name, &phba->pcidev->dev);
9605                 if (!error) {
9606                         lpfc_write_firmware(phba, fw);
9607                         release_firmware(fw);
9608                 }
9609         }
9610
9611         /* Check if there are static vports to be created. */
9612         lpfc_create_static_vport(phba);
9613         return 0;
9614
9615 out_disable_intr:
9616         lpfc_sli4_disable_intr(phba);
9617 out_free_sysfs_attr:
9618         lpfc_free_sysfs_attr(vport);
9619 out_destroy_shost:
9620         lpfc_destroy_shost(phba);
9621 out_unset_driver_resource:
9622         lpfc_unset_driver_resource_phase2(phba);
9623 out_free_iocb_list:
9624         lpfc_free_iocb_list(phba);
9625 out_unset_driver_resource_s4:
9626         lpfc_sli4_driver_resource_unset(phba);
9627 out_unset_pci_mem_s4:
9628         lpfc_sli4_pci_mem_unset(phba);
9629 out_disable_pci_dev:
9630         lpfc_disable_pci_dev(phba);
9631         if (shost)
9632                 scsi_host_put(shost);
9633 out_free_phba:
9634         lpfc_hba_free(phba);
9635         return error;
9636 }
9637
9638 /**
9639  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
9640  * @pdev: pointer to PCI device
9641  *
9642  * This routine is called from the kernel's PCI subsystem to device with
9643  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
9644  * removed from PCI bus, it performs all the necessary cleanup for the HBA
9645  * device to be removed from the PCI subsystem properly.
9646  **/
9647 static void __devexit
9648 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
9649 {
9650         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9651         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
9652         struct lpfc_vport **vports;
9653         struct lpfc_hba *phba = vport->phba;
9654         int i;
9655
9656         /* Mark the device unloading flag */
9657         spin_lock_irq(&phba->hbalock);
9658         vport->load_flag |= FC_UNLOADING;
9659         spin_unlock_irq(&phba->hbalock);
9660
9661         /* Free the HBA sysfs attributes */
9662         lpfc_free_sysfs_attr(vport);
9663
9664         /* Release all the vports against this physical port */
9665         vports = lpfc_create_vport_work_array(phba);
9666         if (vports != NULL)
9667                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
9668                         if (vports[i]->port_type == LPFC_PHYSICAL_PORT)
9669                                 continue;
9670                         fc_vport_terminate(vports[i]->fc_vport);
9671                 }
9672         lpfc_destroy_vport_work_array(phba, vports);
9673
9674         /* Remove FC host and then SCSI host with the physical port */
9675         fc_remove_host(shost);
9676         scsi_remove_host(shost);
9677
9678         /* Perform cleanup on the physical port */
9679         lpfc_cleanup(vport);
9680
9681         /*
9682          * Bring down the SLI Layer. This step disables all interrupts,
9683          * clears the rings, discards all mailbox commands, and resets
9684          * the HBA FCoE function.
9685          */
9686         lpfc_debugfs_terminate(vport);
9687         lpfc_sli4_hba_unset(phba);
9688
9689         spin_lock_irq(&phba->hbalock);
9690         list_del_init(&vport->listentry);
9691         spin_unlock_irq(&phba->hbalock);
9692
9693         /* Perform scsi free before driver resource_unset since scsi
9694          * buffers are released to their corresponding pools here.
9695          */
9696         lpfc_scsi_free(phba);
9697         lpfc_sli4_driver_resource_unset(phba);
9698
9699         /* Unmap adapter Control and Doorbell registers */
9700         lpfc_sli4_pci_mem_unset(phba);
9701
9702         /* Release PCI resources and disable device's PCI function */
9703         scsi_host_put(shost);
9704         lpfc_disable_pci_dev(phba);
9705
9706         /* Finally, free the driver's device data structure */
9707         lpfc_hba_free(phba);
9708
9709         return;
9710 }
9711
9712 /**
9713  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
9714  * @pdev: pointer to PCI device
9715  * @msg: power management message
9716  *
9717  * This routine is called from the kernel's PCI subsystem to support system
9718  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
9719  * this method, it quiesces the device by stopping the driver's worker
9720  * thread for the device, turning off device's interrupt and DMA, and bring
9721  * the device offline. Note that as the driver implements the minimum PM
9722  * requirements to a power-aware driver's PM support for suspend/resume -- all
9723  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
9724  * method call will be treated as SUSPEND and the driver will fully
9725  * reinitialize its device during resume() method call, the driver will set
9726  * device to PCI_D3hot state in PCI config space instead of setting it
9727  * according to the @msg provided by the PM.
9728  *
9729  * Return code
9730  *      0 - driver suspended the device
9731  *      Error otherwise
9732  **/
9733 static int
9734 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
9735 {
9736         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9737         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9738
9739         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9740                         "2843 PCI device Power Management suspend.\n");
9741
9742         /* Bring down the device */
9743         lpfc_offline_prep(phba, LPFC_MBX_WAIT);
9744         lpfc_offline(phba);
9745         kthread_stop(phba->worker_thread);
9746
9747         /* Disable interrupt from device */
9748         lpfc_sli4_disable_intr(phba);
9749         lpfc_sli4_queue_destroy(phba);
9750
9751         /* Save device state to PCI config space */
9752         pci_save_state(pdev);
9753         pci_set_power_state(pdev, PCI_D3hot);
9754
9755         return 0;
9756 }
9757
9758 /**
9759  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
9760  * @pdev: pointer to PCI device
9761  *
9762  * This routine is called from the kernel's PCI subsystem to support system
9763  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
9764  * this method, it restores the device's PCI config space state and fully
9765  * reinitializes the device and brings it online. Note that as the driver
9766  * implements the minimum PM requirements to a power-aware driver's PM for
9767  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
9768  * to the suspend() method call will be treated as SUSPEND and the driver
9769  * will fully reinitialize its device during resume() method call, the device
9770  * will be set to PCI_D0 directly in PCI config space before restoring the
9771  * state.
9772  *
9773  * Return code
9774  *      0 - driver suspended the device
9775  *      Error otherwise
9776  **/
9777 static int
9778 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
9779 {
9780         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9781         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9782         uint32_t intr_mode;
9783         int error;
9784
9785         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
9786                         "0292 PCI device Power Management resume.\n");
9787
9788         /* Restore device state from PCI config space */
9789         pci_set_power_state(pdev, PCI_D0);
9790         pci_restore_state(pdev);
9791
9792         /*
9793          * As the new kernel behavior of pci_restore_state() API call clears
9794          * device saved_state flag, need to save the restored state again.
9795          */
9796         pci_save_state(pdev);
9797
9798         if (pdev->is_busmaster)
9799                 pci_set_master(pdev);
9800
9801          /* Startup the kernel thread for this host adapter. */
9802         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9803                                         "lpfc_worker_%d", phba->brd_no);
9804         if (IS_ERR(phba->worker_thread)) {
9805                 error = PTR_ERR(phba->worker_thread);
9806                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9807                                 "0293 PM resume failed to start worker "
9808                                 "thread: error=x%x.\n", error);
9809                 return error;
9810         }
9811
9812         /* Configure and enable interrupt */
9813         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9814         if (intr_mode == LPFC_INTR_ERROR) {
9815                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9816                                 "0294 PM resume Failed to enable interrupt\n");
9817                 return -EIO;
9818         } else
9819                 phba->intr_mode = intr_mode;
9820
9821         /* Restart HBA and bring it online */
9822         lpfc_sli_brdrestart(phba);
9823         lpfc_online(phba);
9824
9825         /* Log the current active interrupt mode */
9826         lpfc_log_intr_mode(phba, phba->intr_mode);
9827
9828         return 0;
9829 }
9830
9831 /**
9832  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9833  * @phba: pointer to lpfc hba data structure.
9834  *
9835  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9836  * aborts all the outstanding SCSI I/Os to the pci device.
9837  **/
9838 static void
9839 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9840 {
9841         struct lpfc_sli *psli = &phba->sli;
9842         struct lpfc_sli_ring  *pring;
9843
9844         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9845                         "2828 PCI channel I/O abort preparing for recovery\n");
9846         /*
9847          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9848          * and let the SCSI mid-layer to retry them to recover.
9849          */
9850         pring = &psli->ring[psli->fcp_ring];
9851         lpfc_sli_abort_iocb_ring(phba, pring);
9852 }
9853
9854 /**
9855  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9856  * @phba: pointer to lpfc hba data structure.
9857  *
9858  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9859  * disables the device interrupt and pci device, and aborts the internal FCP
9860  * pending I/Os.
9861  **/
9862 static void
9863 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9864 {
9865         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9866                         "2826 PCI channel disable preparing for reset\n");
9867
9868         /* Block any management I/Os to the device */
9869         lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT);
9870
9871         /* Block all SCSI devices' I/Os on the host */
9872         lpfc_scsi_dev_block(phba);
9873
9874         /* stop all timers */
9875         lpfc_stop_hba_timers(phba);
9876
9877         /* Disable interrupt and pci device */
9878         lpfc_sli4_disable_intr(phba);
9879         lpfc_sli4_queue_destroy(phba);
9880         pci_disable_device(phba->pcidev);
9881
9882         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9883         lpfc_sli_flush_fcp_rings(phba);
9884 }
9885
9886 /**
9887  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9888  * @phba: pointer to lpfc hba data structure.
9889  *
9890  * This routine is called to prepare the SLI4 device for PCI slot permanently
9891  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9892  * pending I/Os.
9893  **/
9894 static void
9895 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9896 {
9897         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9898                         "2827 PCI channel permanent disable for failure\n");
9899
9900         /* Block all SCSI devices' I/Os on the host */
9901         lpfc_scsi_dev_block(phba);
9902
9903         /* stop all timers */
9904         lpfc_stop_hba_timers(phba);
9905
9906         /* Clean up all driver's outstanding SCSI I/Os */
9907         lpfc_sli_flush_fcp_rings(phba);
9908 }
9909
9910 /**
9911  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9912  * @pdev: pointer to PCI device.
9913  * @state: the current PCI connection state.
9914  *
9915  * This routine is called from the PCI subsystem for error handling to device
9916  * with SLI-4 interface spec. This function is called by the PCI subsystem
9917  * after a PCI bus error affecting this device has been detected. When this
9918  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9919  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9920  * for the PCI subsystem to perform proper recovery as desired.
9921  *
9922  * Return codes
9923  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9924  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9925  **/
9926 static pci_ers_result_t
9927 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9928 {
9929         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9930         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9931
9932         switch (state) {
9933         case pci_channel_io_normal:
9934                 /* Non-fatal error, prepare for recovery */
9935                 lpfc_sli4_prep_dev_for_recover(phba);
9936                 return PCI_ERS_RESULT_CAN_RECOVER;
9937         case pci_channel_io_frozen:
9938                 /* Fatal error, prepare for slot reset */
9939                 lpfc_sli4_prep_dev_for_reset(phba);
9940                 return PCI_ERS_RESULT_NEED_RESET;
9941         case pci_channel_io_perm_failure:
9942                 /* Permanent failure, prepare for device down */
9943                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9944                 return PCI_ERS_RESULT_DISCONNECT;
9945         default:
9946                 /* Unknown state, prepare and request slot reset */
9947                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9948                                 "2825 Unknown PCI error state: x%x\n", state);
9949                 lpfc_sli4_prep_dev_for_reset(phba);
9950                 return PCI_ERS_RESULT_NEED_RESET;
9951         }
9952 }
9953
9954 /**
9955  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9956  * @pdev: pointer to PCI device.
9957  *
9958  * This routine is called from the PCI subsystem for error handling to device
9959  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9960  * restart the PCI card from scratch, as if from a cold-boot. During the
9961  * PCI subsystem error recovery, after the driver returns
9962  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9963  * recovery and then call this routine before calling the .resume method to
9964  * recover the device. This function will initialize the HBA device, enable
9965  * the interrupt, but it will just put the HBA to offline state without
9966  * passing any I/O traffic.
9967  *
9968  * Return codes
9969  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9970  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9971  */
9972 static pci_ers_result_t
9973 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9974 {
9975         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9976         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9977         struct lpfc_sli *psli = &phba->sli;
9978         uint32_t intr_mode;
9979
9980         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9981         if (pci_enable_device_mem(pdev)) {
9982                 printk(KERN_ERR "lpfc: Cannot re-enable "
9983                         "PCI device after reset.\n");
9984                 return PCI_ERS_RESULT_DISCONNECT;
9985         }
9986
9987         pci_restore_state(pdev);
9988
9989         /*
9990          * As the new kernel behavior of pci_restore_state() API call clears
9991          * device saved_state flag, need to save the restored state again.
9992          */
9993         pci_save_state(pdev);
9994
9995         if (pdev->is_busmaster)
9996                 pci_set_master(pdev);
9997
9998         spin_lock_irq(&phba->hbalock);
9999         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
10000         spin_unlock_irq(&phba->hbalock);
10001
10002         /* Configure and enable interrupt */
10003         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
10004         if (intr_mode == LPFC_INTR_ERROR) {
10005                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10006                                 "2824 Cannot re-enable interrupt after "
10007                                 "slot reset.\n");
10008                 return PCI_ERS_RESULT_DISCONNECT;
10009         } else
10010                 phba->intr_mode = intr_mode;
10011
10012         /* Log the current active interrupt mode */
10013         lpfc_log_intr_mode(phba, phba->intr_mode);
10014
10015         return PCI_ERS_RESULT_RECOVERED;
10016 }
10017
10018 /**
10019  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
10020  * @pdev: pointer to PCI device
10021  *
10022  * This routine is called from the PCI subsystem for error handling to device
10023  * with SLI-4 interface spec. It is called when kernel error recovery tells
10024  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
10025  * error recovery. After this call, traffic can start to flow from this device
10026  * again.
10027  **/
10028 static void
10029 lpfc_io_resume_s4(struct pci_dev *pdev)
10030 {
10031         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10032         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10033
10034         /*
10035          * In case of slot reset, as function reset is performed through
10036          * mailbox command which needs DMA to be enabled, this operation
10037          * has to be moved to the io resume phase. Taking device offline
10038          * will perform the necessary cleanup.
10039          */
10040         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
10041                 /* Perform device reset */
10042                 lpfc_offline_prep(phba, LPFC_MBX_WAIT);
10043                 lpfc_offline(phba);
10044                 lpfc_sli_brdrestart(phba);
10045                 /* Bring the device back online */
10046                 lpfc_online(phba);
10047         }
10048
10049         /* Clean up Advanced Error Reporting (AER) if needed */
10050         if (phba->hba_flag & HBA_AER_ENABLED)
10051                 pci_cleanup_aer_uncorrect_error_status(pdev);
10052 }
10053
10054 /**
10055  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
10056  * @pdev: pointer to PCI device
10057  * @pid: pointer to PCI device identifier
10058  *
10059  * This routine is to be registered to the kernel's PCI subsystem. When an
10060  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
10061  * at PCI device-specific information of the device and driver to see if the
10062  * driver state that it can support this kind of device. If the match is
10063  * successful, the driver core invokes this routine. This routine dispatches
10064  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
10065  * do all the initialization that it needs to do to handle the HBA device
10066  * properly.
10067  *
10068  * Return code
10069  *      0 - driver can claim the device
10070  *      negative value - driver can not claim the device
10071  **/
10072 static int __devinit
10073 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
10074 {
10075         int rc;
10076         struct lpfc_sli_intf intf;
10077
10078         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
10079                 return -ENODEV;
10080
10081         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
10082             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
10083                 rc = lpfc_pci_probe_one_s4(pdev, pid);
10084         else
10085                 rc = lpfc_pci_probe_one_s3(pdev, pid);
10086
10087         return rc;
10088 }
10089
10090 /**
10091  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
10092  * @pdev: pointer to PCI device
10093  *
10094  * This routine is to be registered to the kernel's PCI subsystem. When an
10095  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
10096  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
10097  * remove routine, which will perform all the necessary cleanup for the
10098  * device to be removed from the PCI subsystem properly.
10099  **/
10100 static void __devexit
10101 lpfc_pci_remove_one(struct pci_dev *pdev)
10102 {
10103         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10104         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10105
10106         switch (phba->pci_dev_grp) {
10107         case LPFC_PCI_DEV_LP:
10108                 lpfc_pci_remove_one_s3(pdev);
10109                 break;
10110         case LPFC_PCI_DEV_OC:
10111                 lpfc_pci_remove_one_s4(pdev);
10112                 break;
10113         default:
10114                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10115                                 "1424 Invalid PCI device group: 0x%x\n",
10116                                 phba->pci_dev_grp);
10117                 break;
10118         }
10119         return;
10120 }
10121
10122 /**
10123  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
10124  * @pdev: pointer to PCI device
10125  * @msg: power management message
10126  *
10127  * This routine is to be registered to the kernel's PCI subsystem to support
10128  * system Power Management (PM). When PM invokes this method, it dispatches
10129  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
10130  * suspend the device.
10131  *
10132  * Return code
10133  *      0 - driver suspended the device
10134  *      Error otherwise
10135  **/
10136 static int
10137 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
10138 {
10139         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10140         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10141         int rc = -ENODEV;
10142
10143         switch (phba->pci_dev_grp) {
10144         case LPFC_PCI_DEV_LP:
10145                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
10146                 break;
10147         case LPFC_PCI_DEV_OC:
10148                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
10149                 break;
10150         default:
10151                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10152                                 "1425 Invalid PCI device group: 0x%x\n",
10153                                 phba->pci_dev_grp);
10154                 break;
10155         }
10156         return rc;
10157 }
10158
10159 /**
10160  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
10161  * @pdev: pointer to PCI device
10162  *
10163  * This routine is to be registered to the kernel's PCI subsystem to support
10164  * system Power Management (PM). When PM invokes this method, it dispatches
10165  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
10166  * resume the device.
10167  *
10168  * Return code
10169  *      0 - driver suspended the device
10170  *      Error otherwise
10171  **/
10172 static int
10173 lpfc_pci_resume_one(struct pci_dev *pdev)
10174 {
10175         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10176         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10177         int rc = -ENODEV;
10178
10179         switch (phba->pci_dev_grp) {
10180         case LPFC_PCI_DEV_LP:
10181                 rc = lpfc_pci_resume_one_s3(pdev);
10182                 break;
10183         case LPFC_PCI_DEV_OC:
10184                 rc = lpfc_pci_resume_one_s4(pdev);
10185                 break;
10186         default:
10187                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10188                                 "1426 Invalid PCI device group: 0x%x\n",
10189                                 phba->pci_dev_grp);
10190                 break;
10191         }
10192         return rc;
10193 }
10194
10195 /**
10196  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
10197  * @pdev: pointer to PCI device.
10198  * @state: the current PCI connection state.
10199  *
10200  * This routine is registered to the PCI subsystem for error handling. This
10201  * function is called by the PCI subsystem after a PCI bus error affecting
10202  * this device has been detected. When this routine is invoked, it dispatches
10203  * the action to the proper SLI-3 or SLI-4 device error detected handling
10204  * routine, which will perform the proper error detected operation.
10205  *
10206  * Return codes
10207  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
10208  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10209  **/
10210 static pci_ers_result_t
10211 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
10212 {
10213         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10214         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10215         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10216
10217         switch (phba->pci_dev_grp) {
10218         case LPFC_PCI_DEV_LP:
10219                 rc = lpfc_io_error_detected_s3(pdev, state);
10220                 break;
10221         case LPFC_PCI_DEV_OC:
10222                 rc = lpfc_io_error_detected_s4(pdev, state);
10223                 break;
10224         default:
10225                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10226                                 "1427 Invalid PCI device group: 0x%x\n",
10227                                 phba->pci_dev_grp);
10228                 break;
10229         }
10230         return rc;
10231 }
10232
10233 /**
10234  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
10235  * @pdev: pointer to PCI device.
10236  *
10237  * This routine is registered to the PCI subsystem for error handling. This
10238  * function is called after PCI bus has been reset to restart the PCI card
10239  * from scratch, as if from a cold-boot. When this routine is invoked, it
10240  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
10241  * routine, which will perform the proper device reset.
10242  *
10243  * Return codes
10244  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
10245  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
10246  **/
10247 static pci_ers_result_t
10248 lpfc_io_slot_reset(struct pci_dev *pdev)
10249 {
10250         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10251         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10252         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
10253
10254         switch (phba->pci_dev_grp) {
10255         case LPFC_PCI_DEV_LP:
10256                 rc = lpfc_io_slot_reset_s3(pdev);
10257                 break;
10258         case LPFC_PCI_DEV_OC:
10259                 rc = lpfc_io_slot_reset_s4(pdev);
10260                 break;
10261         default:
10262                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10263                                 "1428 Invalid PCI device group: 0x%x\n",
10264                                 phba->pci_dev_grp);
10265                 break;
10266         }
10267         return rc;
10268 }
10269
10270 /**
10271  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
10272  * @pdev: pointer to PCI device
10273  *
10274  * This routine is registered to the PCI subsystem for error handling. It
10275  * is called when kernel error recovery tells the lpfc driver that it is
10276  * OK to resume normal PCI operation after PCI bus error recovery. When
10277  * this routine is invoked, it dispatches the action to the proper SLI-3
10278  * or SLI-4 device io_resume routine, which will resume the device operation.
10279  **/
10280 static void
10281 lpfc_io_resume(struct pci_dev *pdev)
10282 {
10283         struct Scsi_Host *shost = pci_get_drvdata(pdev);
10284         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
10285
10286         switch (phba->pci_dev_grp) {
10287         case LPFC_PCI_DEV_LP:
10288                 lpfc_io_resume_s3(pdev);
10289                 break;
10290         case LPFC_PCI_DEV_OC:
10291                 lpfc_io_resume_s4(pdev);
10292                 break;
10293         default:
10294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10295                                 "1429 Invalid PCI device group: 0x%x\n",
10296                                 phba->pci_dev_grp);
10297                 break;
10298         }
10299         return;
10300 }
10301
10302 /**
10303  * lpfc_mgmt_open - method called when 'lpfcmgmt' is opened from userspace
10304  * @inode: pointer to the inode representing the lpfcmgmt device
10305  * @filep: pointer to the file representing the open lpfcmgmt device
10306  *
10307  * This routine puts a reference count on the lpfc module whenever the
10308  * character device is opened
10309  **/
10310 static int
10311 lpfc_mgmt_open(struct inode *inode, struct file *filep)
10312 {
10313         try_module_get(THIS_MODULE);
10314         return 0;
10315 }
10316
10317 /**
10318  * lpfc_mgmt_release - method called when 'lpfcmgmt' is closed in userspace
10319  * @inode: pointer to the inode representing the lpfcmgmt device
10320  * @filep: pointer to the file representing the open lpfcmgmt device
10321  *
10322  * This routine removes a reference count from the lpfc module when the
10323  * character device is closed
10324  **/
10325 static int
10326 lpfc_mgmt_release(struct inode *inode, struct file *filep)
10327 {
10328         module_put(THIS_MODULE);
10329         return 0;
10330 }
10331
10332 static struct pci_device_id lpfc_id_table[] = {
10333         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
10334                 PCI_ANY_ID, PCI_ANY_ID, },
10335         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
10336                 PCI_ANY_ID, PCI_ANY_ID, },
10337         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
10338                 PCI_ANY_ID, PCI_ANY_ID, },
10339         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
10340                 PCI_ANY_ID, PCI_ANY_ID, },
10341         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
10342                 PCI_ANY_ID, PCI_ANY_ID, },
10343         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
10344                 PCI_ANY_ID, PCI_ANY_ID, },
10345         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
10346                 PCI_ANY_ID, PCI_ANY_ID, },
10347         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
10348                 PCI_ANY_ID, PCI_ANY_ID, },
10349         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
10350                 PCI_ANY_ID, PCI_ANY_ID, },
10351         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
10352                 PCI_ANY_ID, PCI_ANY_ID, },
10353         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
10354                 PCI_ANY_ID, PCI_ANY_ID, },
10355         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
10356                 PCI_ANY_ID, PCI_ANY_ID, },
10357         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
10358                 PCI_ANY_ID, PCI_ANY_ID, },
10359         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
10360                 PCI_ANY_ID, PCI_ANY_ID, },
10361         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
10362                 PCI_ANY_ID, PCI_ANY_ID, },
10363         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
10364                 PCI_ANY_ID, PCI_ANY_ID, },
10365         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
10366                 PCI_ANY_ID, PCI_ANY_ID, },
10367         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
10368                 PCI_ANY_ID, PCI_ANY_ID, },
10369         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
10370                 PCI_ANY_ID, PCI_ANY_ID, },
10371         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
10372                 PCI_ANY_ID, PCI_ANY_ID, },
10373         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
10374                 PCI_ANY_ID, PCI_ANY_ID, },
10375         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
10376                 PCI_ANY_ID, PCI_ANY_ID, },
10377         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
10378                 PCI_ANY_ID, PCI_ANY_ID, },
10379         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
10380                 PCI_ANY_ID, PCI_ANY_ID, },
10381         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
10382                 PCI_ANY_ID, PCI_ANY_ID, },
10383         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
10384                 PCI_ANY_ID, PCI_ANY_ID, },
10385         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
10386                 PCI_ANY_ID, PCI_ANY_ID, },
10387         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
10388                 PCI_ANY_ID, PCI_ANY_ID, },
10389         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
10390                 PCI_ANY_ID, PCI_ANY_ID, },
10391         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
10392                 PCI_ANY_ID, PCI_ANY_ID, },
10393         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
10394                 PCI_ANY_ID, PCI_ANY_ID, },
10395         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
10396                 PCI_ANY_ID, PCI_ANY_ID, },
10397         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
10398                 PCI_ANY_ID, PCI_ANY_ID, },
10399         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
10400                 PCI_ANY_ID, PCI_ANY_ID, },
10401         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
10402                 PCI_ANY_ID, PCI_ANY_ID, },
10403         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
10404                 PCI_ANY_ID, PCI_ANY_ID, },
10405         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
10406                 PCI_ANY_ID, PCI_ANY_ID, },
10407         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
10408                 PCI_ANY_ID, PCI_ANY_ID, },
10409         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
10410                 PCI_ANY_ID, PCI_ANY_ID, },
10411         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
10412                 PCI_ANY_ID, PCI_ANY_ID, },
10413         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
10414                 PCI_ANY_ID, PCI_ANY_ID, },
10415         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
10416                 PCI_ANY_ID, PCI_ANY_ID, },
10417         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
10418                 PCI_ANY_ID, PCI_ANY_ID, },
10419         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
10420                 PCI_ANY_ID, PCI_ANY_ID, },
10421         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
10422                 PCI_ANY_ID, PCI_ANY_ID, },
10423         { 0 }
10424 };
10425
10426 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
10427
10428 static const struct pci_error_handlers lpfc_err_handler = {
10429         .error_detected = lpfc_io_error_detected,
10430         .slot_reset = lpfc_io_slot_reset,
10431         .resume = lpfc_io_resume,
10432 };
10433
10434 static struct pci_driver lpfc_driver = {
10435         .name           = LPFC_DRIVER_NAME,
10436         .id_table       = lpfc_id_table,
10437         .probe          = lpfc_pci_probe_one,
10438         .remove         = __devexit_p(lpfc_pci_remove_one),
10439         .suspend        = lpfc_pci_suspend_one,
10440         .resume         = lpfc_pci_resume_one,
10441         .err_handler    = &lpfc_err_handler,
10442 };
10443
10444 static const struct file_operations lpfc_mgmt_fop = {
10445         .open = lpfc_mgmt_open,
10446         .release = lpfc_mgmt_release,
10447 };
10448
10449 static struct miscdevice lpfc_mgmt_dev = {
10450         .minor = MISC_DYNAMIC_MINOR,
10451         .name = "lpfcmgmt",
10452         .fops = &lpfc_mgmt_fop,
10453 };
10454
10455 /**
10456  * lpfc_init - lpfc module initialization routine
10457  *
10458  * This routine is to be invoked when the lpfc module is loaded into the
10459  * kernel. The special kernel macro module_init() is used to indicate the
10460  * role of this routine to the kernel as lpfc module entry point.
10461  *
10462  * Return codes
10463  *   0 - successful
10464  *   -ENOMEM - FC attach transport failed
10465  *   all others - failed
10466  */
10467 static int __init
10468 lpfc_init(void)
10469 {
10470         int error = 0;
10471
10472         printk(LPFC_MODULE_DESC "\n");
10473         printk(LPFC_COPYRIGHT "\n");
10474
10475         error = misc_register(&lpfc_mgmt_dev);
10476         if (error)
10477                 printk(KERN_ERR "Could not register lpfcmgmt device, "
10478                         "misc_register returned with status %d", error);
10479
10480         if (lpfc_enable_npiv) {
10481                 lpfc_transport_functions.vport_create = lpfc_vport_create;
10482                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
10483         }
10484         lpfc_transport_template =
10485                                 fc_attach_transport(&lpfc_transport_functions);
10486         if (lpfc_transport_template == NULL)
10487                 return -ENOMEM;
10488         if (lpfc_enable_npiv) {
10489                 lpfc_vport_transport_template =
10490                         fc_attach_transport(&lpfc_vport_transport_functions);
10491                 if (lpfc_vport_transport_template == NULL) {
10492                         fc_release_transport(lpfc_transport_template);
10493                         return -ENOMEM;
10494                 }
10495         }
10496         error = pci_register_driver(&lpfc_driver);
10497         if (error) {
10498                 fc_release_transport(lpfc_transport_template);
10499                 if (lpfc_enable_npiv)
10500                         fc_release_transport(lpfc_vport_transport_template);
10501         }
10502
10503         return error;
10504 }
10505
10506 /**
10507  * lpfc_exit - lpfc module removal routine
10508  *
10509  * This routine is invoked when the lpfc module is removed from the kernel.
10510  * The special kernel macro module_exit() is used to indicate the role of
10511  * this routine to the kernel as lpfc module exit point.
10512  */
10513 static void __exit
10514 lpfc_exit(void)
10515 {
10516         misc_deregister(&lpfc_mgmt_dev);
10517         pci_unregister_driver(&lpfc_driver);
10518         fc_release_transport(lpfc_transport_template);
10519         if (lpfc_enable_npiv)
10520                 fc_release_transport(lpfc_vport_transport_template);
10521         if (_dump_buf_data) {
10522                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
10523                                 "_dump_buf_data at 0x%p\n",
10524                                 (1L << _dump_buf_data_order), _dump_buf_data);
10525                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
10526         }
10527
10528         if (_dump_buf_dif) {
10529                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
10530                                 "_dump_buf_dif at 0x%p\n",
10531                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
10532                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
10533         }
10534 }
10535
10536 module_init(lpfc_init);
10537 module_exit(lpfc_exit);
10538 MODULE_LICENSE("GPL");
10539 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
10540 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
10541 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);