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) 2004-2011 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/kthread.h>
  28 #include <linux/pci.h>
  29 #include <linux/spinlock.h>
  30 #include <linux/ctype.h>
  31 #include <linux/aer.h>
  32 #include <linux/slab.h>
  33
  34 #include <scsi/scsi.h>
  35 #include <scsi/scsi_device.h>
  36 #include <scsi/scsi_host.h>
  37 #include <scsi/scsi_transport_fc.h>
  38
  39 #include "lpfc_hw4.h"
  40 #include "lpfc_hw.h"
  41 #include "lpfc_sli.h"
  42 #include "lpfc_sli4.h"
  43 #include "lpfc_nl.h"
  44 #include "lpfc_disc.h"
  45 #include "lpfc_scsi.h"
  46 #include "lpfc.h"
  47 #include "lpfc_logmsg.h"
  48 #include "lpfc_crtn.h"
  49 #include "lpfc_vport.h"
  50 #include "lpfc_version.h"
  51
  52 char *_dump_buf_data;
  53 unsigned long _dump_buf_data_order;
  54 char *_dump_buf_dif;
  55 unsigned long _dump_buf_dif_order;
  56 spinlock_t _dump_buf_lock;
  57
  58 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  59 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  60 static int lpfc_sli4_queue_create(struct lpfc_hba *);
  61 static void lpfc_sli4_queue_destroy(struct lpfc_hba *);
  62 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
  63 static int lpfc_setup_endian_order(struct lpfc_hba *);
  64 static int lpfc_sli4_read_config(struct lpfc_hba *);
  65 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
  66 static void lpfc_free_sgl_list(struct lpfc_hba *);
  67 static int lpfc_init_sgl_list(struct lpfc_hba *);
  68 static int lpfc_init_active_sgl_array(struct lpfc_hba *);
  69 static void lpfc_free_active_sgl(struct lpfc_hba *);
  70 static int lpfc_hba_down_post_s3(struct lpfc_hba *phba);
  71 static int lpfc_hba_down_post_s4(struct lpfc_hba *phba);
  72 static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *);
  73 static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
  74 static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
  75
  76 static struct scsi_transport_template *lpfc_transport_template = NULL;
  77 static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
  78 static DEFINE_IDR(lpfc_hba_index);
  79
  80 /**
  81  * lpfc_config_port_prep - Perform lpfc initialization prior to config port
  82  * @phba: pointer to lpfc hba data structure.
  83  *
  84  * This routine will do LPFC initialization prior to issuing the CONFIG_PORT
  85  * mailbox command. It retrieves the revision information from the HBA and
  86  * collects the Vital Product Data (VPD) about the HBA for preparing the
  87  * configuration of the HBA.
  88  *
  89  * Return codes:
  90  *   0 - success.
  91  *   -ERESTART - requests the SLI layer to reset the HBA and try again.
  92  *   Any other value - indicates an error.
  93  **/
  94 int
  95 lpfc_config_port_prep(struct lpfc_hba *phba)
  96 {
  97         lpfc_vpd_t *vp = &phba->vpd;
  98         int i = 0, rc;
  99         LPFC_MBOXQ_t *pmb;
 100         MAILBOX_t *mb;
 101         char *lpfc_vpd_data = NULL;
 102         uint16_t offset = 0;
 103         static char licensed[56] =
 104                     "key unlock for use with gnu public licensed code only\0";
 105         static int init_key = 1;
 106
 107         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 108         if (!pmb) {
 109                 phba->link_state = LPFC_HBA_ERROR;
 110                 return -ENOMEM;
 111         }
 112
 113         mb = &pmb->u.mb;
 114         phba->link_state = LPFC_INIT_MBX_CMDS;
 115
 116         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
 117                 if (init_key) {
 118                         uint32_t *ptext = (uint32_t *) licensed;
 119
 120                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
 121                                 *ptext = cpu_to_be32(*ptext);
 122                         init_key = 0;
 123                 }
 124
 125                 lpfc_read_nv(phba, pmb);
 126                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
 127                         sizeof (mb->un.varRDnvp.rsvd3));
 128                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
 129                          sizeof (licensed));
 130
 131                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 132
 133                 if (rc != MBX_SUCCESS) {
 134                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 135                                         "0324 Config Port initialization "
 136                                         "error, mbxCmd x%x READ_NVPARM, "
 137                                         "mbxStatus x%x\n",
 138                                         mb->mbxCommand, mb->mbxStatus);
 139                         mempool_free(pmb, phba->mbox_mem_pool);
 140                         return -ERESTART;
 141                 }
 142                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 143                        sizeof(phba->wwnn));
 144                 memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname,
 145                        sizeof(phba->wwpn));
 146         }
 147
 148         phba->sli3_options = 0x0;
 149
 150         /* Setup and issue mailbox READ REV command */
 151         lpfc_read_rev(phba, pmb);
 152         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 153         if (rc != MBX_SUCCESS) {
 154                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 155                                 "0439 Adapter failed to init, mbxCmd x%x "
 156                                 "READ_REV, mbxStatus x%x\n",
 157                                 mb->mbxCommand, mb->mbxStatus);
 158                 mempool_free( pmb, phba->mbox_mem_pool);
 159                 return -ERESTART;
 160         }
 161
 162
 163         /*
 164          * The value of rr must be 1 since the driver set the cv field to 1.
 165          * This setting requires the FW to set all revision fields.
 166          */
 167         if (mb->un.varRdRev.rr == 0) {
 168                 vp->rev.rBit = 0;
 169                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 170                                 "0440 Adapter failed to init, READ_REV has "
 171                                 "missing revision information.\n");
 172                 mempool_free(pmb, phba->mbox_mem_pool);
 173                 return -ERESTART;
 174         }
 175
 176         if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) {
 177                 mempool_free(pmb, phba->mbox_mem_pool);
 178                 return -EINVAL;
 179         }
 180
 181         /* Save information as VPD data */
 182         vp->rev.rBit = 1;
 183         memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t));
 184         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 185         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 186         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 187         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 188         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 189         vp->rev.smRev = mb->un.varRdRev.smRev;
 190         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 191         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 192         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 193         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 194         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 195         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 196         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 197         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 198
 199         /* If the sli feature level is less then 9, we must
 200          * tear down all RPIs and VPIs on link down if NPIV
 201          * is enabled.
 202          */
 203         if (vp->rev.feaLevelHigh < 9)
 204                 phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN;
 205
 206         if (lpfc_is_LC_HBA(phba->pcidev->device))
 207                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 208                                                 sizeof (phba->RandomData));
 209
 210         /* Get adapter VPD information */
 211         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 212         if (!lpfc_vpd_data)
 213                 goto out_free_mbox;
 214
 215         do {
 216                 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD);
 217                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 218
 219                 if (rc != MBX_SUCCESS) {
 220                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 221                                         "0441 VPD not present on adapter, "
 222                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 223                                         mb->mbxCommand, mb->mbxStatus);
 224                         mb->un.varDmp.word_cnt = 0;
 225                 }
 226                 /* dump mem may return a zero when finished or we got a
 227                  * mailbox error, either way we are done.
 228                  */
 229                 if (mb->un.varDmp.word_cnt == 0)
 230                         break;
 231                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 232                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 233                 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
 234                                       lpfc_vpd_data + offset,
 235                                       mb->un.varDmp.word_cnt);
 236                 offset += mb->un.varDmp.word_cnt;
 237         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 238         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 239
 240         kfree(lpfc_vpd_data);
 241 out_free_mbox:
 242         mempool_free(pmb, phba->mbox_mem_pool);
 243         return 0;
 244 }
 245
 246 /**
 247  * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd
 248  * @phba: pointer to lpfc hba data structure.
 249  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 250  *
 251  * This is the completion handler for driver's configuring asynchronous event
 252  * mailbox command to the device. If the mailbox command returns successfully,
 253  * it will set internal async event support flag to 1; otherwise, it will
 254  * set internal async event support flag to 0.
 255  **/
 256 static void
 257 lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 258 {
 259         if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS)
 260                 phba->temp_sensor_support = 1;
 261         else
 262                 phba->temp_sensor_support = 0;
 263         mempool_free(pmboxq, phba->mbox_mem_pool);
 264         return;
 265 }
 266
 267 /**
 268  * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler
 269  * @phba: pointer to lpfc hba data structure.
 270  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 271  *
 272  * This is the completion handler for dump mailbox command for getting
 273  * wake up parameters. When this command complete, the response contain
 274  * Option rom version of the HBA. This function translate the version number
 275  * into a human readable string and store it in OptionROMVersion.
 276  **/
 277 static void
 278 lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 279 {
 280         struct prog_id *prg;
 281         uint32_t prog_id_word;
 282         char dist = ' ';
 283         /* character array used for decoding dist type. */
 284         char dist_char[] = "nabx";
 285
 286         if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) {
 287                 mempool_free(pmboxq, phba->mbox_mem_pool);
 288                 return;
 289         }
 290
 291         prg = (struct prog_id *) &prog_id_word;
 292
 293         /* word 7 contain option rom version */
 294         prog_id_word = pmboxq->u.mb.un.varWords[7];
 295
 296         /* Decode the Option rom version word to a readable string */
 297         if (prg->dist < 4)
 298                 dist = dist_char[prg->dist];
 299
 300         if ((prg->dist == 3) && (prg->num == 0))
 301                 sprintf(phba->OptionROMVersion, "%d.%d%d",
 302                         prg->ver, prg->rev, prg->lev);
 303         else
 304                 sprintf(phba->OptionROMVersion, "%d.%d%d%c%d",
 305                         prg->ver, prg->rev, prg->lev,
 306                         dist, prg->num);
 307         mempool_free(pmboxq, phba->mbox_mem_pool);
 308         return;
 309 }
 310
 311 /**
 312  * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname,
 313  *      cfg_soft_wwnn, cfg_soft_wwpn
 314  * @vport: pointer to lpfc vport data structure.
 315  *
 316  *
 317  * Return codes
 318  *   None.
 319  **/
 320 void
 321 lpfc_update_vport_wwn(struct lpfc_vport *vport)
 322 {
 323         /* If the soft name exists then update it using the service params */
 324         if (vport->phba->cfg_soft_wwnn)
 325                 u64_to_wwn(vport->phba->cfg_soft_wwnn,
 326                            vport->fc_sparam.nodeName.u.wwn);
 327         if (vport->phba->cfg_soft_wwpn)
 328                 u64_to_wwn(vport->phba->cfg_soft_wwpn,
 329                            vport->fc_sparam.portName.u.wwn);
 330
 331         /*
 332          * If the name is empty or there exists a soft name
 333          * then copy the service params name, otherwise use the fc name
 334          */
 335         if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn)
 336                 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 337                         sizeof(struct lpfc_name));
 338         else
 339                 memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename,
 340                         sizeof(struct lpfc_name));
 341
 342         if (vport->fc_portname.u.wwn[0] == 0 || vport->phba->cfg_soft_wwpn)
 343                 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 344                         sizeof(struct lpfc_name));
 345         else
 346                 memcpy(&vport->fc_sparam.portName, &vport->fc_portname,
 347                         sizeof(struct lpfc_name));
 348 }
 349
 350 /**
 351  * lpfc_config_port_post - Perform lpfc initialization after config port
 352  * @phba: pointer to lpfc hba data structure.
 353  *
 354  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 355  * command call. It performs all internal resource and state setups on the
 356  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 357  * ELS ring timers, etc.
 358  *
 359  * Return codes
 360  *   0 - success.
 361  *   Any other value - error.
 362  **/
 363 int
 364 lpfc_config_port_post(struct lpfc_hba *phba)
 365 {
 366         struct lpfc_vport *vport = phba->pport;
 367         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 368         LPFC_MBOXQ_t *pmb;
 369         MAILBOX_t *mb;
 370         struct lpfc_dmabuf *mp;
 371         struct lpfc_sli *psli = &phba->sli;
 372         uint32_t status, timeout;
 373         int i, j;
 374         int rc;
 375
 376         spin_lock_irq(&phba->hbalock);
 377         /*
 378          * If the Config port completed correctly the HBA is not
 379          * over heated any more.
 380          */
 381         if (phba->over_temp_state == HBA_OVER_TEMP)
 382                 phba->over_temp_state = HBA_NORMAL_TEMP;
 383         spin_unlock_irq(&phba->hbalock);
 384
 385         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 386         if (!pmb) {
 387                 phba->link_state = LPFC_HBA_ERROR;
 388                 return -ENOMEM;
 389         }
 390         mb = &pmb->u.mb;
 391
 392         /* Get login parameters for NID.  */
 393         rc = lpfc_read_sparam(phba, pmb, 0);
 394         if (rc) {
 395                 mempool_free(pmb, phba->mbox_mem_pool);
 396                 return -ENOMEM;
 397         }
 398
 399         pmb->vport = vport;
 400         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 401                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 402                                 "0448 Adapter failed init, mbxCmd x%x "
 403                                 "READ_SPARM mbxStatus x%x\n",
 404                                 mb->mbxCommand, mb->mbxStatus);
 405                 phba->link_state = LPFC_HBA_ERROR;
 406                 mp = (struct lpfc_dmabuf *) pmb->context1;
 407                 mempool_free(pmb, phba->mbox_mem_pool);
 408                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 409                 kfree(mp);
 410                 return -EIO;
 411         }
 412
 413         mp = (struct lpfc_dmabuf *) pmb->context1;
 414
 415         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 416         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 417         kfree(mp);
 418         pmb->context1 = NULL;
 419         lpfc_update_vport_wwn(vport);
 420
 421         /* Update the fc_host data structures with new wwn. */
 422         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 423         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 424         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 425
 426         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 427         /* This should be consolidated into parse_vpd ? - mr */
 428         if (phba->SerialNumber[0] == 0) {
 429                 uint8_t *outptr;
 430
 431                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 432                 for (i = 0; i < 12; i++) {
 433                         status = *outptr++;
 434                         j = ((status & 0xf0) >> 4);
 435                         if (j <= 9)
 436                                 phba->SerialNumber[i] =
 437                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 438                         else
 439                                 phba->SerialNumber[i] =
 440                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 441                         i++;
 442                         j = (status & 0xf);
 443                         if (j <= 9)
 444                                 phba->SerialNumber[i] =
 445                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 446                         else
 447                                 phba->SerialNumber[i] =
 448                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 449                 }
 450         }
 451
 452         lpfc_read_config(phba, pmb);
 453         pmb->vport = vport;
 454         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 455                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 456                                 "0453 Adapter failed to init, mbxCmd x%x "
 457                                 "READ_CONFIG, mbxStatus x%x\n",
 458                                 mb->mbxCommand, mb->mbxStatus);
 459                 phba->link_state = LPFC_HBA_ERROR;
 460                 mempool_free( pmb, phba->mbox_mem_pool);
 461                 return -EIO;
 462         }
 463
 464         /* Check if the port is disabled */
 465         lpfc_sli_read_link_ste(phba);
 466
 467         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 468         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 469                 phba->cfg_hba_queue_depth =
 470                         (mb->un.varRdConfig.max_xri + 1) -
 471                                         lpfc_sli4_get_els_iocb_cnt(phba);
 472
 473         phba->lmt = mb->un.varRdConfig.lmt;
 474
 475         /* Get the default values for Model Name and Description */
 476         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 477
 478         if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
 479             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
 480                 && !(phba->lmt & LMT_1Gb))
 481             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
 482                 && !(phba->lmt & LMT_2Gb))
 483             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
 484                 && !(phba->lmt & LMT_4Gb))
 485             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
 486                 && !(phba->lmt & LMT_8Gb))
 487             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
 488                 && !(phba->lmt & LMT_10Gb))
 489             || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
 490                 && !(phba->lmt & LMT_16Gb))) {
 491                 /* Reset link speed to auto */
 492                 lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 493                         "1302 Invalid speed for this board: "
 494                         "Reset link speed to auto: x%x\n",
 495                         phba->cfg_link_speed);
 496                         phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
 497         }
 498
 499         phba->link_state = LPFC_LINK_DOWN;
 500
 501         /* Only process IOCBs on ELS ring till hba_state is READY */
 502         if (psli->ring[psli->extra_ring].cmdringaddr)
 503                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 504         if (psli->ring[psli->fcp_ring].cmdringaddr)
 505                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 506         if (psli->ring[psli->next_ring].cmdringaddr)
 507                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 508
 509         /* Post receive buffers for desired rings */
 510         if (phba->sli_rev != 3)
 511                 lpfc_post_rcv_buf(phba);
 512
 513         /*
 514          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 515          */
 516         if (phba->intr_type == MSIX) {
 517                 rc = lpfc_config_msi(phba, pmb);
 518                 if (rc) {
 519                         mempool_free(pmb, phba->mbox_mem_pool);
 520                         return -EIO;
 521                 }
 522                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 523                 if (rc != MBX_SUCCESS) {
 524                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 525                                         "0352 Config MSI mailbox command "
 526                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 527                                         pmb->u.mb.mbxCommand,
 528                                         pmb->u.mb.mbxStatus);
 529                         mempool_free(pmb, phba->mbox_mem_pool);
 530                         return -EIO;
 531                 }
 532         }
 533
 534         spin_lock_irq(&phba->hbalock);
 535         /* Initialize ERATT handling flag */
 536         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 537
 538         /* Enable appropriate host interrupts */
 539         if (lpfc_readl(phba->HCregaddr, &status)) {
 540                 spin_unlock_irq(&phba->hbalock);
 541                 return -EIO;
 542         }
 543         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 544         if (psli->num_rings > 0)
 545                 status |= HC_R0INT_ENA;
 546         if (psli->num_rings > 1)
 547                 status |= HC_R1INT_ENA;
 548         if (psli->num_rings > 2)
 549                 status |= HC_R2INT_ENA;
 550         if (psli->num_rings > 3)
 551                 status |= HC_R3INT_ENA;
 552
 553         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 554             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 555                 status &= ~(HC_R0INT_ENA);
 556
 557         writel(status, phba->HCregaddr);
 558         readl(phba->HCregaddr); /* flush */
 559         spin_unlock_irq(&phba->hbalock);
 560
 561         /* Set up ring-0 (ELS) timer */
 562         timeout = phba->fc_ratov * 2;
 563         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 564         /* Set up heart beat (HB) timer */
 565         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 566         phba->hb_outstanding = 0;
 567         phba->last_completion_time = jiffies;
 568         /* Set up error attention (ERATT) polling timer */
 569         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 570
 571         if (phba->hba_flag & LINK_DISABLED) {
 572                 lpfc_printf_log(phba,
 573                         KERN_ERR, LOG_INIT,
 574                         "2598 Adapter Link is disabled.\n");
 575                 lpfc_down_link(phba, pmb);
 576                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 577                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 578                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 579                         lpfc_printf_log(phba,
 580                         KERN_ERR, LOG_INIT,
 581                         "2599 Adapter failed to issue DOWN_LINK"
 582                         " mbox command rc 0x%x\n", rc);
 583
 584                         mempool_free(pmb, phba->mbox_mem_pool);
 585                         return -EIO;
 586                 }
 587         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 588                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 589                         phba->cfg_link_speed);
 590                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 591                 lpfc_set_loopback_flag(phba);
 592                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 593                 if (rc != MBX_SUCCESS) {
 594                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 595                                 "0454 Adapter failed to init, mbxCmd x%x "
 596                                 "INIT_LINK, mbxStatus x%x\n",
 597                                 mb->mbxCommand, mb->mbxStatus);
 598
 599                         /* Clear all interrupt enable conditions */
 600                         writel(0, phba->HCregaddr);
 601                         readl(phba->HCregaddr); /* flush */
 602                         /* Clear all pending interrupts */
 603                         writel(0xffffffff, phba->HAregaddr);
 604                         readl(phba->HAregaddr); /* flush */
 605
 606                         phba->link_state = LPFC_HBA_ERROR;
 607                         if (rc != MBX_BUSY)
 608                                 mempool_free(pmb, phba->mbox_mem_pool);
 609                         return -EIO;
 610                 }
 611         }
 612         /* MBOX buffer will be freed in mbox compl */
 613         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 614         if (!pmb) {
 615                 phba->link_state = LPFC_HBA_ERROR;
 616                 return -ENOMEM;
 617         }
 618
 619         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 620         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 621         pmb->vport = phba->pport;
 622         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 623
 624         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 625                 lpfc_printf_log(phba,
 626                                 KERN_ERR,
 627                                 LOG_INIT,
 628                                 "0456 Adapter failed to issue "
 629                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 630                                 rc);
 631                 mempool_free(pmb, phba->mbox_mem_pool);
 632         }
 633
 634         /* Get Option rom version */
 635         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 636         if (!pmb) {
 637                 phba->link_state = LPFC_HBA_ERROR;
 638                 return -ENOMEM;
 639         }
 640
 641         lpfc_dump_wakeup_param(phba, pmb);
 642         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 643         pmb->vport = phba->pport;
 644         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 645
 646         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 647                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 648                                 "to get Option ROM version status x%x\n", rc);
 649                 mempool_free(pmb, phba->mbox_mem_pool);
 650         }
 651
 652         return 0;
 653 }
 654
 655 /**
 656  * lpfc_hba_init_link - Initialize the FC link
 657  * @phba: pointer to lpfc hba data structure.
 658  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 659  *
 660  * This routine will issue the INIT_LINK mailbox command call.
 661  * It is available to other drivers through the lpfc_hba data
 662  * structure for use as a delayed link up mechanism with the
 663  * module parameter lpfc_suppress_link_up.
 664  *
 665  * Return code
 666  *              0 - success
 667  *              Any other value - error
 668  **/
 669 int
 670 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 671 {
 672         struct lpfc_vport *vport = phba->pport;
 673         LPFC_MBOXQ_t *pmb;
 674         MAILBOX_t *mb;
 675         int rc;
 676
 677         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 678         if (!pmb) {
 679                 phba->link_state = LPFC_HBA_ERROR;
 680                 return -ENOMEM;
 681         }
 682         mb = &pmb->u.mb;
 683         pmb->vport = vport;
 684
 685         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 686         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 687         lpfc_set_loopback_flag(phba);
 688         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 689         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 690                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 691                         "0498 Adapter failed to init, mbxCmd x%x "
 692                         "INIT_LINK, mbxStatus x%x\n",
 693                         mb->mbxCommand, mb->mbxStatus);
 694                 if (phba->sli_rev <= LPFC_SLI_REV3) {
 695                         /* Clear all interrupt enable conditions */
 696                         writel(0, phba->HCregaddr);
 697                         readl(phba->HCregaddr); /* flush */
 698                         /* Clear all pending interrupts */
 699                         writel(0xffffffff, phba->HAregaddr);
 700                         readl(phba->HAregaddr); /* flush */
 701                 }
 702                 phba->link_state = LPFC_HBA_ERROR;
 703                 if (rc != MBX_BUSY || flag == MBX_POLL)
 704                         mempool_free(pmb, phba->mbox_mem_pool);
 705                 return -EIO;
 706         }
 707         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 708         if (flag == MBX_POLL)
 709                 mempool_free(pmb, phba->mbox_mem_pool);
 710
 711         return 0;
 712 }
 713
 714 /**
 715  * lpfc_hba_down_link - this routine downs the FC link
 716  * @phba: pointer to lpfc hba data structure.
 717  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 718  *
 719  * This routine will issue the DOWN_LINK mailbox command call.
 720  * It is available to other drivers through the lpfc_hba data
 721  * structure for use to stop the link.
 722  *
 723  * Return code
 724  *              0 - success
 725  *              Any other value - error
 726  **/
 727 int
 728 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 729 {
 730         LPFC_MBOXQ_t *pmb;
 731         int rc;
 732
 733         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 734         if (!pmb) {
 735                 phba->link_state = LPFC_HBA_ERROR;
 736                 return -ENOMEM;
 737         }
 738
 739         lpfc_printf_log(phba,
 740                 KERN_ERR, LOG_INIT,
 741                 "0491 Adapter Link is disabled.\n");
 742         lpfc_down_link(phba, pmb);
 743         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 744         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 745         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 746                 lpfc_printf_log(phba,
 747                 KERN_ERR, LOG_INIT,
 748                 "2522 Adapter failed to issue DOWN_LINK"
 749                 " mbox command rc 0x%x\n", rc);
 750
 751                 mempool_free(pmb, phba->mbox_mem_pool);
 752                 return -EIO;
 753         }
 754         if (flag == MBX_POLL)
 755                 mempool_free(pmb, phba->mbox_mem_pool);
 756
 757         return 0;
 758 }
 759
 760 /**
 761  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 762  * @phba: pointer to lpfc HBA data structure.
 763  *
 764  * This routine will do LPFC uninitialization before the HBA is reset when
 765  * bringing down the SLI Layer.
 766  *
 767  * Return codes
 768  *   0 - success.
 769  *   Any other value - error.
 770  **/
 771 int
 772 lpfc_hba_down_prep(struct lpfc_hba *phba)
 773 {
 774         struct lpfc_vport **vports;
 775         int i;
 776
 777         if (phba->sli_rev <= LPFC_SLI_REV3) {
 778                 /* Disable interrupts */
 779                 writel(0, phba->HCregaddr);
 780                 readl(phba->HCregaddr); /* flush */
 781         }
 782
 783         if (phba->pport->load_flag & FC_UNLOADING)
 784                 lpfc_cleanup_discovery_resources(phba->pport);
 785         else {
 786                 vports = lpfc_create_vport_work_array(phba);
 787                 if (vports != NULL)
 788                         for (i = 0; i <= phba->max_vports &&
 789                                 vports[i] != NULL; i++)
 790                                 lpfc_cleanup_discovery_resources(vports[i]);
 791                 lpfc_destroy_vport_work_array(phba, vports);
 792         }
 793         return 0;
 794 }
 795
 796 /**
 797  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 798  * @phba: pointer to lpfc HBA data structure.
 799  *
 800  * This routine will do uninitialization after the HBA is reset when bring
 801  * down the SLI Layer.
 802  *
 803  * Return codes
 804  *   0 - success.
 805  *   Any other value - error.
 806  **/
 807 static int
 808 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 809 {
 810         struct lpfc_sli *psli = &phba->sli;
 811         struct lpfc_sli_ring *pring;
 812         struct lpfc_dmabuf *mp, *next_mp;
 813         LIST_HEAD(completions);
 814         int i;
 815
 816         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 817                 lpfc_sli_hbqbuf_free_all(phba);
 818         else {
 819                 /* Cleanup preposted buffers on the ELS ring */
 820                 pring = &psli->ring[LPFC_ELS_RING];
 821                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 822                         list_del(&mp->list);
 823                         pring->postbufq_cnt--;
 824                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 825                         kfree(mp);
 826                 }
 827         }
 828
 829         spin_lock_irq(&phba->hbalock);
 830         for (i = 0; i < psli->num_rings; i++) {
 831                 pring = &psli->ring[i];
 832
 833                 /* At this point in time the HBA is either reset or DOA. Either
 834                  * way, nothing should be on txcmplq as it will NEVER complete.
 835                  */
 836                 list_splice_init(&pring->txcmplq, &completions);
 837                 pring->txcmplq_cnt = 0;
 838                 spin_unlock_irq(&phba->hbalock);
 839
 840                 /* Cancel all the IOCBs from the completions list */
 841                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 842                                       IOERR_SLI_ABORTED);
 843
 844                 lpfc_sli_abort_iocb_ring(phba, pring);
 845                 spin_lock_irq(&phba->hbalock);
 846         }
 847         spin_unlock_irq(&phba->hbalock);
 848
 849         return 0;
 850 }
 851
 852 /**
 853  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 854  * @phba: pointer to lpfc HBA data structure.
 855  *
 856  * This routine will do uninitialization after the HBA is reset when bring
 857  * down the SLI Layer.
 858  *
 859  * Return codes
 860  *   0 - success.
 861  *   Any other value - error.
 862  **/
 863 static int
 864 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 865 {
 866         struct lpfc_scsi_buf *psb, *psb_next;
 867         LIST_HEAD(aborts);
 868         int ret;
 869         unsigned long iflag = 0;
 870         struct lpfc_sglq *sglq_entry = NULL;
 871
 872         ret = lpfc_hba_down_post_s3(phba);
 873         if (ret)
 874                 return ret;
 875         /* At this point in time the HBA is either reset or DOA. Either
 876          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 877          * on the lpfc_sgl_list so that it can either be freed if the
 878          * driver is unloading or reposted if the driver is restarting
 879          * the port.
 880          */
 881         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 882                                         /* scsl_buf_list */
 883         /* abts_sgl_list_lock required because worker thread uses this
 884          * list.
 885          */
 886         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 887         list_for_each_entry(sglq_entry,
 888                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 889                 sglq_entry->state = SGL_FREED;
 890
 891         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 892                         &phba->sli4_hba.lpfc_sgl_list);
 893         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 894         /* abts_scsi_buf_list_lock required because worker thread uses this
 895          * list.
 896          */
 897         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 898         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 899                         &aborts);
 900         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 901         spin_unlock_irq(&phba->hbalock);
 902
 903         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 904                 psb->pCmd = NULL;
 905                 psb->status = IOSTAT_SUCCESS;
 906         }
 907         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 908         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 909         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 910         return 0;
 911 }
 912
 913 /**
 914  * lpfc_hba_down_post - Wrapper func for hba down post routine
 915  * @phba: pointer to lpfc HBA data structure.
 916  *
 917  * This routine wraps the actual SLI3 or SLI4 routine for performing
 918  * uninitialization after the HBA is reset when bring down the SLI Layer.
 919  *
 920  * Return codes
 921  *   0 - success.
 922  *   Any other value - error.
 923  **/
 924 int
 925 lpfc_hba_down_post(struct lpfc_hba *phba)
 926 {
 927         return (*phba->lpfc_hba_down_post)(phba);
 928 }
 929
 930 /**
 931  * lpfc_hb_timeout - The HBA-timer timeout handler
 932  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 933  *
 934  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 935  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 936  * work-port-events bitmap and the worker thread is notified. This timeout
 937  * event will be used by the worker thread to invoke the actual timeout
 938  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 939  * be performed in the timeout handler and the HBA timeout event bit shall
 940  * be cleared by the worker thread after it has taken the event bitmap out.
 941  **/
 942 static void
 943 lpfc_hb_timeout(unsigned long ptr)
 944 {
 945         struct lpfc_hba *phba;
 946         uint32_t tmo_posted;
 947         unsigned long iflag;
 948
 949         phba = (struct lpfc_hba *)ptr;
 950
 951         /* Check for heart beat timeout conditions */
 952         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 953         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 954         if (!tmo_posted)
 955                 phba->pport->work_port_events |= WORKER_HB_TMO;
 956         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 957
 958         /* Tell the worker thread there is work to do */
 959         if (!tmo_posted)
 960                 lpfc_worker_wake_up(phba);
 961         return;
 962 }
 963
 964 /**
 965  * lpfc_rrq_timeout - The RRQ-timer timeout handler
 966  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 967  *
 968  * This is the RRQ-timer timeout handler registered to the lpfc driver. When
 969  * this timer fires, a RRQ timeout event shall be posted to the lpfc driver
 970  * work-port-events bitmap and the worker thread is notified. This timeout
 971  * event will be used by the worker thread to invoke the actual timeout
 972  * handler routine, lpfc_rrq_handler. Any periodical operations will
 973  * be performed in the timeout handler and the RRQ timeout event bit shall
 974  * be cleared by the worker thread after it has taken the event bitmap out.
 975  **/
 976 static void
 977 lpfc_rrq_timeout(unsigned long ptr)
 978 {
 979         struct lpfc_hba *phba;
 980         unsigned long iflag;
 981
 982         phba = (struct lpfc_hba *)ptr;
 983         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 984         phba->hba_flag |= HBA_RRQ_ACTIVE;
 985         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 986         lpfc_worker_wake_up(phba);
 987 }
 988
 989 /**
 990  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 991  * @phba: pointer to lpfc hba data structure.
 992  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 993  *
 994  * This is the callback function to the lpfc heart-beat mailbox command.
 995  * If configured, the lpfc driver issues the heart-beat mailbox command to
 996  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 997  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 998  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 999  * heart-beat outstanding state. Once the mailbox command comes back and
1000  * no error conditions detected, the heart-beat mailbox command timer is
1001  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
1002  * state is cleared for the next heart-beat. If the timer expired with the
1003  * heart-beat outstanding state set, the driver will put the HBA offline.
1004  **/
1005 static void
1006 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
1007 {
1008         unsigned long drvr_flag;
1009
1010         spin_lock_irqsave(&phba->hbalock, drvr_flag);
1011         phba->hb_outstanding = 0;
1012         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
1013
1014         /* Check and reset heart-beat timer is necessary */
1015         mempool_free(pmboxq, phba->mbox_mem_pool);
1016         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
1017                 !(phba->link_state == LPFC_HBA_ERROR) &&
1018                 !(phba->pport->load_flag & FC_UNLOADING))
1019                 mod_timer(&phba->hb_tmofunc,
1020                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1021         return;
1022 }
1023
1024 /**
1025  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
1026  * @phba: pointer to lpfc hba data structure.
1027  *
1028  * This is the actual HBA-timer timeout handler to be invoked by the worker
1029  * thread whenever the HBA timer fired and HBA-timeout event posted. This
1030  * handler performs any periodic operations needed for the device. If such
1031  * periodic event has already been attended to either in the interrupt handler
1032  * or by processing slow-ring or fast-ring events within the HBA-timer
1033  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
1034  * the timer for the next timeout period. If lpfc heart-beat mailbox command
1035  * is configured and there is no heart-beat mailbox command outstanding, a
1036  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
1037  * has been a heart-beat mailbox command outstanding, the HBA shall be put
1038  * to offline.
1039  **/
1040 void
1041 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
1042 {
1043         struct lpfc_vport **vports;
1044         LPFC_MBOXQ_t *pmboxq;
1045         struct lpfc_dmabuf *buf_ptr;
1046         int retval, i;
1047         struct lpfc_sli *psli = &phba->sli;
1048         LIST_HEAD(completions);
1049
1050         vports = lpfc_create_vport_work_array(phba);
1051         if (vports != NULL)
1052                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
1053                         lpfc_rcv_seq_check_edtov(vports[i]);
1054         lpfc_destroy_vport_work_array(phba, vports);
1055
1056         if ((phba->link_state == LPFC_HBA_ERROR) ||
1057                 (phba->pport->load_flag & FC_UNLOADING) ||
1058                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
1059                 return;
1060
1061         spin_lock_irq(&phba->pport->work_port_lock);
1062
1063         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1064                 jiffies)) {
1065                 spin_unlock_irq(&phba->pport->work_port_lock);
1066                 if (!phba->hb_outstanding)
1067                         mod_timer(&phba->hb_tmofunc,
1068                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1069                 else
1070                         mod_timer(&phba->hb_tmofunc,
1071                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1072                 return;
1073         }
1074         spin_unlock_irq(&phba->pport->work_port_lock);
1075
1076         if (phba->elsbuf_cnt &&
1077                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1078                 spin_lock_irq(&phba->hbalock);
1079                 list_splice_init(&phba->elsbuf, &completions);
1080                 phba->elsbuf_cnt = 0;
1081                 phba->elsbuf_prev_cnt = 0;
1082                 spin_unlock_irq(&phba->hbalock);
1083
1084                 while (!list_empty(&completions)) {
1085                         list_remove_head(&completions, buf_ptr,
1086                                 struct lpfc_dmabuf, list);
1087                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1088                         kfree(buf_ptr);
1089                 }
1090         }
1091         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1092
1093         /* If there is no heart beat outstanding, issue a heartbeat command */
1094         if (phba->cfg_enable_hba_heartbeat) {
1095                 if (!phba->hb_outstanding) {
1096                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1097                                 (list_empty(&psli->mboxq))) {
1098                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1099                                                         GFP_KERNEL);
1100                                 if (!pmboxq) {
1101                                         mod_timer(&phba->hb_tmofunc,
1102                                                  jiffies +
1103                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1104                                         return;
1105                                 }
1106
1107                                 lpfc_heart_beat(phba, pmboxq);
1108                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1109                                 pmboxq->vport = phba->pport;
1110                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1111                                                 MBX_NOWAIT);
1112
1113                                 if (retval != MBX_BUSY &&
1114                                         retval != MBX_SUCCESS) {
1115                                         mempool_free(pmboxq,
1116                                                         phba->mbox_mem_pool);
1117                                         mod_timer(&phba->hb_tmofunc,
1118                                                 jiffies +
1119                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1120                                         return;
1121                                 }
1122                                 phba->skipped_hb = 0;
1123                                 phba->hb_outstanding = 1;
1124                         } else if (time_before_eq(phba->last_completion_time,
1125                                         phba->skipped_hb)) {
1126                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1127                                         "2857 Last completion time not "
1128                                         " updated in %d ms\n",
1129                                         jiffies_to_msecs(jiffies
1130                                                  - phba->last_completion_time));
1131                         } else
1132                                 phba->skipped_hb = jiffies;
1133
1134                         mod_timer(&phba->hb_tmofunc,
1135                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1136                         return;
1137                 } else {
1138                         /*
1139                         * If heart beat timeout called with hb_outstanding set
1140                         * we need to give the hb mailbox cmd a chance to
1141                         * complete or TMO.
1142                         */
1143                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1144                                         "0459 Adapter heartbeat still out"
1145                                         "standing:last compl time was %d ms.\n",
1146                                         jiffies_to_msecs(jiffies
1147                                                  - phba->last_completion_time));
1148                         mod_timer(&phba->hb_tmofunc,
1149                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1150                 }
1151         }
1152 }
1153
1154 /**
1155  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1156  * @phba: pointer to lpfc hba data structure.
1157  *
1158  * This routine is called to bring the HBA offline when HBA hardware error
1159  * other than Port Error 6 has been detected.
1160  **/
1161 static void
1162 lpfc_offline_eratt(struct lpfc_hba *phba)
1163 {
1164         struct lpfc_sli   *psli = &phba->sli;
1165
1166         spin_lock_irq(&phba->hbalock);
1167         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1168         spin_unlock_irq(&phba->hbalock);
1169         lpfc_offline_prep(phba);
1170
1171         lpfc_offline(phba);
1172         lpfc_reset_barrier(phba);
1173         spin_lock_irq(&phba->hbalock);
1174         lpfc_sli_brdreset(phba);
1175         spin_unlock_irq(&phba->hbalock);
1176         lpfc_hba_down_post(phba);
1177         lpfc_sli_brdready(phba, HS_MBRDY);
1178         lpfc_unblock_mgmt_io(phba);
1179         phba->link_state = LPFC_HBA_ERROR;
1180         return;
1181 }
1182
1183 /**
1184  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1185  * @phba: pointer to lpfc hba data structure.
1186  *
1187  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1188  * other than Port Error 6 has been detected.
1189  **/
1190 static void
1191 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1192 {
1193         lpfc_offline_prep(phba);
1194         lpfc_offline(phba);
1195         lpfc_sli4_brdreset(phba);
1196         lpfc_hba_down_post(phba);
1197         lpfc_sli4_post_status_check(phba);
1198         lpfc_unblock_mgmt_io(phba);
1199         phba->link_state = LPFC_HBA_ERROR;
1200 }
1201
1202 /**
1203  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1204  * @phba: pointer to lpfc hba data structure.
1205  *
1206  * This routine is invoked to handle the deferred HBA hardware error
1207  * conditions. This type of error is indicated by HBA by setting ER1
1208  * and another ER bit in the host status register. The driver will
1209  * wait until the ER1 bit clears before handling the error condition.
1210  **/
1211 static void
1212 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1213 {
1214         uint32_t old_host_status = phba->work_hs;
1215         struct lpfc_sli_ring  *pring;
1216         struct lpfc_sli *psli = &phba->sli;
1217
1218         /* If the pci channel is offline, ignore possible errors,
1219          * since we cannot communicate with the pci card anyway.
1220          */
1221         if (pci_channel_offline(phba->pcidev)) {
1222                 spin_lock_irq(&phba->hbalock);
1223                 phba->hba_flag &= ~DEFER_ERATT;
1224                 spin_unlock_irq(&phba->hbalock);
1225                 return;
1226         }
1227
1228         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1229                 "0479 Deferred Adapter Hardware Error "
1230                 "Data: x%x x%x x%x\n",
1231                 phba->work_hs,
1232                 phba->work_status[0], phba->work_status[1]);
1233
1234         spin_lock_irq(&phba->hbalock);
1235         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1236         spin_unlock_irq(&phba->hbalock);
1237
1238
1239         /*
1240          * Firmware stops when it triggred erratt. That could cause the I/Os
1241          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1242          * SCSI layer retry it after re-establishing link.
1243          */
1244         pring = &psli->ring[psli->fcp_ring];
1245         lpfc_sli_abort_iocb_ring(phba, pring);
1246
1247         /*
1248          * There was a firmware error. Take the hba offline and then
1249          * attempt to restart it.
1250          */
1251         lpfc_offline_prep(phba);
1252         lpfc_offline(phba);
1253
1254         /* Wait for the ER1 bit to clear.*/
1255         while (phba->work_hs & HS_FFER1) {
1256                 msleep(100);
1257                 if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) {
1258                         phba->work_hs = UNPLUG_ERR ;
1259                         break;
1260                 }
1261                 /* If driver is unloading let the worker thread continue */
1262                 if (phba->pport->load_flag & FC_UNLOADING) {
1263                         phba->work_hs = 0;
1264                         break;
1265                 }
1266         }
1267
1268         /*
1269          * This is to ptrotect against a race condition in which
1270          * first write to the host attention register clear the
1271          * host status register.
1272          */
1273         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1274                 phba->work_hs = old_host_status & ~HS_FFER1;
1275
1276         spin_lock_irq(&phba->hbalock);
1277         phba->hba_flag &= ~DEFER_ERATT;
1278         spin_unlock_irq(&phba->hbalock);
1279         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1280         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1281 }
1282
1283 static void
1284 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1285 {
1286         struct lpfc_board_event_header board_event;
1287         struct Scsi_Host *shost;
1288
1289         board_event.event_type = FC_REG_BOARD_EVENT;
1290         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1291         shost = lpfc_shost_from_vport(phba->pport);
1292         fc_host_post_vendor_event(shost, fc_get_event_number(),
1293                                   sizeof(board_event),
1294                                   (char *) &board_event,
1295                                   LPFC_NL_VENDOR_ID);
1296 }
1297
1298 /**
1299  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1300  * @phba: pointer to lpfc hba data structure.
1301  *
1302  * This routine is invoked to handle the following HBA hardware error
1303  * conditions:
1304  * 1 - HBA error attention interrupt
1305  * 2 - DMA ring index out of range
1306  * 3 - Mailbox command came back as unknown
1307  **/
1308 static void
1309 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1310 {
1311         struct lpfc_vport *vport = phba->pport;
1312         struct lpfc_sli   *psli = &phba->sli;
1313         struct lpfc_sli_ring  *pring;
1314         uint32_t event_data;
1315         unsigned long temperature;
1316         struct temp_event temp_event_data;
1317         struct Scsi_Host  *shost;
1318
1319         /* If the pci channel is offline, ignore possible errors,
1320          * since we cannot communicate with the pci card anyway.
1321          */
1322         if (pci_channel_offline(phba->pcidev)) {
1323                 spin_lock_irq(&phba->hbalock);
1324                 phba->hba_flag &= ~DEFER_ERATT;
1325                 spin_unlock_irq(&phba->hbalock);
1326                 return;
1327         }
1328
1329         /* If resets are disabled then leave the HBA alone and return */
1330         if (!phba->cfg_enable_hba_reset)
1331                 return;
1332
1333         /* Send an internal error event to mgmt application */
1334         lpfc_board_errevt_to_mgmt(phba);
1335
1336         if (phba->hba_flag & DEFER_ERATT)
1337                 lpfc_handle_deferred_eratt(phba);
1338
1339         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1340                 if (phba->work_hs & HS_FFER6)
1341                         /* Re-establishing Link */
1342                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1343                                         "1301 Re-establishing Link "
1344                                         "Data: x%x x%x x%x\n",
1345                                         phba->work_hs, phba->work_status[0],
1346                                         phba->work_status[1]);
1347                 if (phba->work_hs & HS_FFER8)
1348                         /* Device Zeroization */
1349                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1350                                         "2861 Host Authentication device "
1351                                         "zeroization Data:x%x x%x x%x\n",
1352                                         phba->work_hs, phba->work_status[0],
1353                                         phba->work_status[1]);
1354
1355                 spin_lock_irq(&phba->hbalock);
1356                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1357                 spin_unlock_irq(&phba->hbalock);
1358
1359                 /*
1360                 * Firmware stops when it triggled erratt with HS_FFER6.
1361                 * That could cause the I/Os dropped by the firmware.
1362                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1363                 * retry it after re-establishing link.
1364                 */
1365                 pring = &psli->ring[psli->fcp_ring];
1366                 lpfc_sli_abort_iocb_ring(phba, pring);
1367
1368                 /*
1369                  * There was a firmware error.  Take the hba offline and then
1370                  * attempt to restart it.
1371                  */
1372                 lpfc_offline_prep(phba);
1373                 lpfc_offline(phba);
1374                 lpfc_sli_brdrestart(phba);
1375                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1376                         lpfc_unblock_mgmt_io(phba);
1377                         return;
1378                 }
1379                 lpfc_unblock_mgmt_io(phba);
1380         } else if (phba->work_hs & HS_CRIT_TEMP) {
1381                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1382                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1383                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1384                 temp_event_data.data = (uint32_t)temperature;
1385
1386                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1387                                 "0406 Adapter maximum temperature exceeded "
1388                                 "(%ld), taking this port offline "
1389                                 "Data: x%x x%x x%x\n",
1390                                 temperature, phba->work_hs,
1391                                 phba->work_status[0], phba->work_status[1]);
1392
1393                 shost = lpfc_shost_from_vport(phba->pport);
1394                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1395                                           sizeof(temp_event_data),
1396                                           (char *) &temp_event_data,
1397                                           SCSI_NL_VID_TYPE_PCI
1398                                           | PCI_VENDOR_ID_EMULEX);
1399
1400                 spin_lock_irq(&phba->hbalock);
1401                 phba->over_temp_state = HBA_OVER_TEMP;
1402                 spin_unlock_irq(&phba->hbalock);
1403                 lpfc_offline_eratt(phba);
1404
1405         } else {
1406                 /* The if clause above forces this code path when the status
1407                  * failure is a value other than FFER6. Do not call the offline
1408                  * twice. This is the adapter hardware error path.
1409                  */
1410                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1411                                 "0457 Adapter Hardware Error "
1412                                 "Data: x%x x%x x%x\n",
1413                                 phba->work_hs,
1414                                 phba->work_status[0], phba->work_status[1]);
1415
1416                 event_data = FC_REG_DUMP_EVENT;
1417                 shost = lpfc_shost_from_vport(vport);
1418                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1419                                 sizeof(event_data), (char *) &event_data,
1420                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1421
1422                 lpfc_offline_eratt(phba);
1423         }
1424         return;
1425 }
1426
1427 /**
1428  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1429  * @phba: pointer to lpfc hba data structure.
1430  *
1431  * This routine is invoked to handle the SLI4 HBA hardware error attention
1432  * conditions.
1433  **/
1434 static void
1435 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1436 {
1437         struct lpfc_vport *vport = phba->pport;
1438         uint32_t event_data;
1439         struct Scsi_Host *shost;
1440         uint32_t if_type;
1441         struct lpfc_register portstat_reg;
1442
1443         /* If the pci channel is offline, ignore possible errors, since
1444          * we cannot communicate with the pci card anyway.
1445          */
1446         if (pci_channel_offline(phba->pcidev))
1447                 return;
1448         /* If resets are disabled then leave the HBA alone and return */
1449         if (!phba->cfg_enable_hba_reset)
1450                 return;
1451
1452         /* Send an internal error event to mgmt application */
1453         lpfc_board_errevt_to_mgmt(phba);
1454
1455         /* For now, the actual action for SLI4 device handling is not
1456          * specified yet, just treated it as adaptor hardware failure
1457          */
1458         event_data = FC_REG_DUMP_EVENT;
1459         shost = lpfc_shost_from_vport(vport);
1460         fc_host_post_vendor_event(shost, fc_get_event_number(),
1461                                   sizeof(event_data), (char *) &event_data,
1462                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1463
1464         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
1465         switch (if_type) {
1466         case LPFC_SLI_INTF_IF_TYPE_0:
1467                 lpfc_sli4_offline_eratt(phba);
1468                 break;
1469         case LPFC_SLI_INTF_IF_TYPE_2:
1470                 portstat_reg.word0 =
1471                         readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
1472
1473                 if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
1474                         /* TODO: Register for Overtemp async events. */
1475                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1476                                 "2889 Port Overtemperature event, "
1477                                 "taking port\n");
1478                         spin_lock_irq(&phba->hbalock);
1479                         phba->over_temp_state = HBA_OVER_TEMP;
1480                         spin_unlock_irq(&phba->hbalock);
1481                         lpfc_sli4_offline_eratt(phba);
1482                         return;
1483                 }
1484                 if (bf_get(lpfc_sliport_status_rn, &portstat_reg)) {
1485                         /*
1486                          * TODO: Attempt port recovery via a port reset.
1487                          * When fully implemented, the driver should
1488                          * attempt to recover the port here and return.
1489                          * For now, log an error and take the port offline.
1490                          */
1491                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1492                                         "2887 Port Error: Attempting "
1493                                         "Port Recovery\n");
1494                 }
1495                 lpfc_sli4_offline_eratt(phba);
1496                 break;
1497         case LPFC_SLI_INTF_IF_TYPE_1:
1498         default:
1499                 break;
1500         }
1501 }
1502
1503 /**
1504  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1505  * @phba: pointer to lpfc HBA data structure.
1506  *
1507  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1508  * routine from the API jump table function pointer from the lpfc_hba struct.
1509  *
1510  * Return codes
1511  *   0 - success.
1512  *   Any other value - error.
1513  **/
1514 void
1515 lpfc_handle_eratt(struct lpfc_hba *phba)
1516 {
1517         (*phba->lpfc_handle_eratt)(phba);
1518 }
1519
1520 /**
1521  * lpfc_handle_latt - The HBA link event handler
1522  * @phba: pointer to lpfc hba data structure.
1523  *
1524  * This routine is invoked from the worker thread to handle a HBA host
1525  * attention link event.
1526  **/
1527 void
1528 lpfc_handle_latt(struct lpfc_hba *phba)
1529 {
1530         struct lpfc_vport *vport = phba->pport;
1531         struct lpfc_sli   *psli = &phba->sli;
1532         LPFC_MBOXQ_t *pmb;
1533         volatile uint32_t control;
1534         struct lpfc_dmabuf *mp;
1535         int rc = 0;
1536
1537         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1538         if (!pmb) {
1539                 rc = 1;
1540                 goto lpfc_handle_latt_err_exit;
1541         }
1542
1543         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1544         if (!mp) {
1545                 rc = 2;
1546                 goto lpfc_handle_latt_free_pmb;
1547         }
1548
1549         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1550         if (!mp->virt) {
1551                 rc = 3;
1552                 goto lpfc_handle_latt_free_mp;
1553         }
1554
1555         /* Cleanup any outstanding ELS commands */
1556         lpfc_els_flush_all_cmd(phba);
1557
1558         psli->slistat.link_event++;
1559         lpfc_read_topology(phba, pmb, mp);
1560         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
1561         pmb->vport = vport;
1562         /* Block ELS IOCBs until we have processed this mbox command */
1563         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1564         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1565         if (rc == MBX_NOT_FINISHED) {
1566                 rc = 4;
1567                 goto lpfc_handle_latt_free_mbuf;
1568         }
1569
1570         /* Clear Link Attention in HA REG */
1571         spin_lock_irq(&phba->hbalock);
1572         writel(HA_LATT, phba->HAregaddr);
1573         readl(phba->HAregaddr); /* flush */
1574         spin_unlock_irq(&phba->hbalock);
1575
1576         return;
1577
1578 lpfc_handle_latt_free_mbuf:
1579         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1580         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1581 lpfc_handle_latt_free_mp:
1582         kfree(mp);
1583 lpfc_handle_latt_free_pmb:
1584         mempool_free(pmb, phba->mbox_mem_pool);
1585 lpfc_handle_latt_err_exit:
1586         /* Enable Link attention interrupts */
1587         spin_lock_irq(&phba->hbalock);
1588         psli->sli_flag |= LPFC_PROCESS_LA;
1589         control = readl(phba->HCregaddr);
1590         control |= HC_LAINT_ENA;
1591         writel(control, phba->HCregaddr);
1592         readl(phba->HCregaddr); /* flush */
1593
1594         /* Clear Link Attention in HA REG */
1595         writel(HA_LATT, phba->HAregaddr);
1596         readl(phba->HAregaddr); /* flush */
1597         spin_unlock_irq(&phba->hbalock);
1598         lpfc_linkdown(phba);
1599         phba->link_state = LPFC_HBA_ERROR;
1600
1601         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1602                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1603
1604         return;
1605 }
1606
1607 /**
1608  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1609  * @phba: pointer to lpfc hba data structure.
1610  * @vpd: pointer to the vital product data.
1611  * @len: length of the vital product data in bytes.
1612  *
1613  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1614  * an array of characters. In this routine, the ModelName, ProgramType, and
1615  * ModelDesc, etc. fields of the phba data structure will be populated.
1616  *
1617  * Return codes
1618  *   0 - pointer to the VPD passed in is NULL
1619  *   1 - success
1620  **/
1621 int
1622 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1623 {
1624         uint8_t lenlo, lenhi;
1625         int Length;
1626         int i, j;
1627         int finished = 0;
1628         int index = 0;
1629
1630         if (!vpd)
1631                 return 0;
1632
1633         /* Vital Product */
1634         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1635                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1636                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1637                         (uint32_t) vpd[3]);
1638         while (!finished && (index < (len - 4))) {
1639                 switch (vpd[index]) {
1640                 case 0x82:
1641                 case 0x91:
1642                         index += 1;
1643                         lenlo = vpd[index];
1644                         index += 1;
1645                         lenhi = vpd[index];
1646                         index += 1;
1647                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1648                         index += i;
1649                         break;
1650                 case 0x90:
1651                         index += 1;
1652                         lenlo = vpd[index];
1653                         index += 1;
1654                         lenhi = vpd[index];
1655                         index += 1;
1656                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1657                         if (Length > len - index)
1658                                 Length = len - index;
1659                         while (Length > 0) {
1660                         /* Look for Serial Number */
1661                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1662                                 index += 2;
1663                                 i = vpd[index];
1664                                 index += 1;
1665                                 j = 0;
1666                                 Length -= (3+i);
1667                                 while(i--) {
1668                                         phba->SerialNumber[j++] = vpd[index++];
1669                                         if (j == 31)
1670                                                 break;
1671                                 }
1672                                 phba->SerialNumber[j] = 0;
1673                                 continue;
1674                         }
1675                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1676                                 phba->vpd_flag |= VPD_MODEL_DESC;
1677                                 index += 2;
1678                                 i = vpd[index];
1679                                 index += 1;
1680                                 j = 0;
1681                                 Length -= (3+i);
1682                                 while(i--) {
1683                                         phba->ModelDesc[j++] = vpd[index++];
1684                                         if (j == 255)
1685                                                 break;
1686                                 }
1687                                 phba->ModelDesc[j] = 0;
1688                                 continue;
1689                         }
1690                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1691                                 phba->vpd_flag |= VPD_MODEL_NAME;
1692                                 index += 2;
1693                                 i = vpd[index];
1694                                 index += 1;
1695                                 j = 0;
1696                                 Length -= (3+i);
1697                                 while(i--) {
1698                                         phba->ModelName[j++] = vpd[index++];
1699                                         if (j == 79)
1700                                                 break;
1701                                 }
1702                                 phba->ModelName[j] = 0;
1703                                 continue;
1704                         }
1705                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1706                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1707                                 index += 2;
1708                                 i = vpd[index];
1709                                 index += 1;
1710                                 j = 0;
1711                                 Length -= (3+i);
1712                                 while(i--) {
1713                                         phba->ProgramType[j++] = vpd[index++];
1714                                         if (j == 255)
1715                                                 break;
1716                                 }
1717                                 phba->ProgramType[j] = 0;
1718                                 continue;
1719                         }
1720                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1721                                 phba->vpd_flag |= VPD_PORT;
1722                                 index += 2;
1723                                 i = vpd[index];
1724                                 index += 1;
1725                                 j = 0;
1726                                 Length -= (3+i);
1727                                 while(i--) {
1728                                 phba->Port[j++] = vpd[index++];
1729                                 if (j == 19)
1730                                         break;
1731                                 }
1732                                 phba->Port[j] = 0;
1733                                 continue;
1734                         }
1735                         else {
1736                                 index += 2;
1737                                 i = vpd[index];
1738                                 index += 1;
1739                                 index += i;
1740                                 Length -= (3 + i);
1741                         }
1742                 }
1743                 finished = 0;
1744                 break;
1745                 case 0x78:
1746                         finished = 1;
1747                         break;
1748                 default:
1749                         index ++;
1750                         break;
1751                 }
1752         }
1753
1754         return(1);
1755 }
1756
1757 /**
1758  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1759  * @phba: pointer to lpfc hba data structure.
1760  * @mdp: pointer to the data structure to hold the derived model name.
1761  * @descp: pointer to the data structure to hold the derived description.
1762  *
1763  * This routine retrieves HBA's description based on its registered PCI device
1764  * ID. The @descp passed into this function points to an array of 256 chars. It
1765  * shall be returned with the model name, maximum speed, and the host bus type.
1766  * The @mdp passed into this function points to an array of 80 chars. When the
1767  * function returns, the @mdp will be filled with the model name.
1768  **/
1769 static void
1770 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1771 {
1772         lpfc_vpd_t *vp;
1773         uint16_t dev_id = phba->pcidev->device;
1774         int max_speed;
1775         int GE = 0;
1776         int oneConnect = 0; /* default is not a oneConnect */
1777         struct {
1778                 char *name;
1779                 char *bus;
1780                 char *function;
1781         } m = {"<Unknown>", "", ""};
1782
1783         if (mdp && mdp[0] != '\0'
1784                 && descp && descp[0] != '\0')
1785                 return;
1786
1787         if (phba->lmt & LMT_16Gb)
1788                 max_speed = 16;
1789         else if (phba->lmt & LMT_10Gb)
1790                 max_speed = 10;
1791         else if (phba->lmt & LMT_8Gb)
1792                 max_speed = 8;
1793         else if (phba->lmt & LMT_4Gb)
1794                 max_speed = 4;
1795         else if (phba->lmt & LMT_2Gb)
1796                 max_speed = 2;
1797         else
1798                 max_speed = 1;
1799
1800         vp = &phba->vpd;
1801
1802         switch (dev_id) {
1803         case PCI_DEVICE_ID_FIREFLY:
1804                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1805                 break;
1806         case PCI_DEVICE_ID_SUPERFLY:
1807                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1808                         m = (typeof(m)){"LP7000", "PCI",
1809                                         "Fibre Channel Adapter"};
1810                 else
1811                         m = (typeof(m)){"LP7000E", "PCI",
1812                                         "Fibre Channel Adapter"};
1813                 break;
1814         case PCI_DEVICE_ID_DRAGONFLY:
1815                 m = (typeof(m)){"LP8000", "PCI",
1816                                 "Fibre Channel Adapter"};
1817                 break;
1818         case PCI_DEVICE_ID_CENTAUR:
1819                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1820                         m = (typeof(m)){"LP9002", "PCI",
1821                                         "Fibre Channel Adapter"};
1822                 else
1823                         m = (typeof(m)){"LP9000", "PCI",
1824                                         "Fibre Channel Adapter"};
1825                 break;
1826         case PCI_DEVICE_ID_RFLY:
1827                 m = (typeof(m)){"LP952", "PCI",
1828                                 "Fibre Channel Adapter"};
1829                 break;
1830         case PCI_DEVICE_ID_PEGASUS:
1831                 m = (typeof(m)){"LP9802", "PCI-X",
1832                                 "Fibre Channel Adapter"};
1833                 break;
1834         case PCI_DEVICE_ID_THOR:
1835                 m = (typeof(m)){"LP10000", "PCI-X",
1836                                 "Fibre Channel Adapter"};
1837                 break;
1838         case PCI_DEVICE_ID_VIPER:
1839                 m = (typeof(m)){"LPX1000",  "PCI-X",
1840                                 "Fibre Channel Adapter"};
1841                 break;
1842         case PCI_DEVICE_ID_PFLY:
1843                 m = (typeof(m)){"LP982", "PCI-X",
1844                                 "Fibre Channel Adapter"};
1845                 break;
1846         case PCI_DEVICE_ID_TFLY:
1847                 m = (typeof(m)){"LP1050", "PCI-X",
1848                                 "Fibre Channel Adapter"};
1849                 break;
1850         case PCI_DEVICE_ID_HELIOS:
1851                 m = (typeof(m)){"LP11000", "PCI-X2",
1852                                 "Fibre Channel Adapter"};
1853                 break;
1854         case PCI_DEVICE_ID_HELIOS_SCSP:
1855                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1856                                 "Fibre Channel Adapter"};
1857                 break;
1858         case PCI_DEVICE_ID_HELIOS_DCSP:
1859                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1860                                 "Fibre Channel Adapter"};
1861                 break;
1862         case PCI_DEVICE_ID_NEPTUNE:
1863                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1864                 break;
1865         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1866                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1867                 break;
1868         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1869                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1870                 break;
1871         case PCI_DEVICE_ID_BMID:
1872                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1873                 break;
1874         case PCI_DEVICE_ID_BSMB:
1875                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1876                 break;
1877         case PCI_DEVICE_ID_ZEPHYR:
1878                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1879                 break;
1880         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1881                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1882                 break;
1883         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1884                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1885                 GE = 1;
1886                 break;
1887         case PCI_DEVICE_ID_ZMID:
1888                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1889                 break;
1890         case PCI_DEVICE_ID_ZSMB:
1891                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1892                 break;
1893         case PCI_DEVICE_ID_LP101:
1894                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1895                 break;
1896         case PCI_DEVICE_ID_LP10000S:
1897                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1898                 break;
1899         case PCI_DEVICE_ID_LP11000S:
1900                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1901                 break;
1902         case PCI_DEVICE_ID_LPE11000S:
1903                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1904                 break;
1905         case PCI_DEVICE_ID_SAT:
1906                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1907                 break;
1908         case PCI_DEVICE_ID_SAT_MID:
1909                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1910                 break;
1911         case PCI_DEVICE_ID_SAT_SMB:
1912                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1913                 break;
1914         case PCI_DEVICE_ID_SAT_DCSP:
1915                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1916                 break;
1917         case PCI_DEVICE_ID_SAT_SCSP:
1918                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1919                 break;
1920         case PCI_DEVICE_ID_SAT_S:
1921                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1922                 break;
1923         case PCI_DEVICE_ID_HORNET:
1924                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1925                 GE = 1;
1926                 break;
1927         case PCI_DEVICE_ID_PROTEUS_VF:
1928                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1929                                 "Fibre Channel Adapter"};
1930                 break;
1931         case PCI_DEVICE_ID_PROTEUS_PF:
1932                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1933                                 "Fibre Channel Adapter"};
1934                 break;
1935         case PCI_DEVICE_ID_PROTEUS_S:
1936                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1937                                 "Fibre Channel Adapter"};
1938                 break;
1939         case PCI_DEVICE_ID_TIGERSHARK:
1940                 oneConnect = 1;
1941                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1942                 break;
1943         case PCI_DEVICE_ID_TOMCAT:
1944                 oneConnect = 1;
1945                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1946                 break;
1947         case PCI_DEVICE_ID_FALCON:
1948                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1949                                 "EmulexSecure Fibre"};
1950                 break;
1951         case PCI_DEVICE_ID_BALIUS:
1952                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1953                                 "Fibre Channel Adapter"};
1954                 break;
1955         case PCI_DEVICE_ID_LANCER_FC:
1956         case PCI_DEVICE_ID_LANCER_FC_VF:
1957                 m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"};
1958                 break;
1959         case PCI_DEVICE_ID_LANCER_FCOE:
1960         case PCI_DEVICE_ID_LANCER_FCOE_VF:
1961                 oneConnect = 1;
1962                 m = (typeof(m)){"OCe50100", "PCIe", "FCoE"};
1963                 break;
1964         default:
1965                 m = (typeof(m)){"Unknown", "", ""};
1966                 break;
1967         }
1968
1969         if (mdp && mdp[0] == '\0')
1970                 snprintf(mdp, 79,"%s", m.name);
1971         /*
1972          * oneConnect hba requires special processing, they are all initiators
1973          * and we put the port number on the end
1974          */
1975         if (descp && descp[0] == '\0') {
1976                 if (oneConnect)
1977                         snprintf(descp, 255,
1978                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1979                                 m.name, m.function,
1980                                 phba->Port);
1981                 else
1982                         snprintf(descp, 255,
1983                                 "Emulex %s %d%s %s %s",
1984                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1985                                 m.bus, m.function);
1986         }
1987 }
1988
1989 /**
1990  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1991  * @phba: pointer to lpfc hba data structure.
1992  * @pring: pointer to a IOCB ring.
1993  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1994  *
1995  * This routine posts a given number of IOCBs with the associated DMA buffer
1996  * descriptors specified by the cnt argument to the given IOCB ring.
1997  *
1998  * Return codes
1999  *   The number of IOCBs NOT able to be posted to the IOCB ring.
2000  **/
2001 int
2002 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
2003 {
2004         IOCB_t *icmd;
2005         struct lpfc_iocbq *iocb;
2006         struct lpfc_dmabuf *mp1, *mp2;
2007
2008         cnt += pring->missbufcnt;
2009
2010         /* While there are buffers to post */
2011         while (cnt > 0) {
2012                 /* Allocate buffer for  command iocb */
2013                 iocb = lpfc_sli_get_iocbq(phba);
2014                 if (iocb == NULL) {
2015                         pring->missbufcnt = cnt;
2016                         return cnt;
2017                 }
2018                 icmd = &iocb->iocb;
2019
2020                 /* 2 buffers can be posted per command */
2021                 /* Allocate buffer to post */
2022                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2023                 if (mp1)
2024                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
2025                 if (!mp1 || !mp1->virt) {
2026                         kfree(mp1);
2027                         lpfc_sli_release_iocbq(phba, iocb);
2028                         pring->missbufcnt = cnt;
2029                         return cnt;
2030                 }
2031
2032                 INIT_LIST_HEAD(&mp1->list);
2033                 /* Allocate buffer to post */
2034                 if (cnt > 1) {
2035                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
2036                         if (mp2)
2037                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
2038                                                             &mp2->phys);
2039                         if (!mp2 || !mp2->virt) {
2040                                 kfree(mp2);
2041                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2042                                 kfree(mp1);
2043                                 lpfc_sli_release_iocbq(phba, iocb);
2044                                 pring->missbufcnt = cnt;
2045                                 return cnt;
2046                         }
2047
2048                         INIT_LIST_HEAD(&mp2->list);
2049                 } else {
2050                         mp2 = NULL;
2051                 }
2052
2053                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
2054                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
2055                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
2056                 icmd->ulpBdeCount = 1;
2057                 cnt--;
2058                 if (mp2) {
2059                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
2060                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
2061                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
2062                         cnt--;
2063                         icmd->ulpBdeCount = 2;
2064                 }
2065
2066                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
2067                 icmd->ulpLe = 1;
2068
2069                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
2070                     IOCB_ERROR) {
2071                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
2072                         kfree(mp1);
2073                         cnt++;
2074                         if (mp2) {
2075                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
2076                                 kfree(mp2);
2077                                 cnt++;
2078                         }
2079                         lpfc_sli_release_iocbq(phba, iocb);
2080                         pring->missbufcnt = cnt;
2081                         return cnt;
2082                 }
2083                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
2084                 if (mp2)
2085                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
2086         }
2087         pring->missbufcnt = 0;
2088         return 0;
2089 }
2090
2091 /**
2092  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
2093  * @phba: pointer to lpfc hba data structure.
2094  *
2095  * This routine posts initial receive IOCB buffers to the ELS ring. The
2096  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
2097  * set to 64 IOCBs.
2098  *
2099  * Return codes
2100  *   0 - success (currently always success)
2101  **/
2102 static int
2103 lpfc_post_rcv_buf(struct lpfc_hba *phba)
2104 {
2105         struct lpfc_sli *psli = &phba->sli;
2106
2107         /* Ring 0, ELS / CT buffers */
2108         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2109         /* Ring 2 - FCP no buffers needed */
2110
2111         return 0;
2112 }
2113
2114 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2115
2116 /**
2117  * lpfc_sha_init - Set up initial array of hash table entries
2118  * @HashResultPointer: pointer to an array as hash table.
2119  *
2120  * This routine sets up the initial values to the array of hash table entries
2121  * for the LC HBAs.
2122  **/
2123 static void
2124 lpfc_sha_init(uint32_t * HashResultPointer)
2125 {
2126         HashResultPointer[0] = 0x67452301;
2127         HashResultPointer[1] = 0xEFCDAB89;
2128         HashResultPointer[2] = 0x98BADCFE;
2129         HashResultPointer[3] = 0x10325476;
2130         HashResultPointer[4] = 0xC3D2E1F0;
2131 }
2132
2133 /**
2134  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2135  * @HashResultPointer: pointer to an initial/result hash table.
2136  * @HashWorkingPointer: pointer to an working hash table.
2137  *
2138  * This routine iterates an initial hash table pointed by @HashResultPointer
2139  * with the values from the working hash table pointeed by @HashWorkingPointer.
2140  * The results are putting back to the initial hash table, returned through
2141  * the @HashResultPointer as the result hash table.
2142  **/
2143 static void
2144 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2145 {
2146         int t;
2147         uint32_t TEMP;
2148         uint32_t A, B, C, D, E;
2149         t = 16;
2150         do {
2151                 HashWorkingPointer[t] =
2152                     S(1,
2153                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2154                                                                      8] ^
2155                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2156         } while (++t <= 79);
2157         t = 0;
2158         A = HashResultPointer[0];
2159         B = HashResultPointer[1];
2160         C = HashResultPointer[2];
2161         D = HashResultPointer[3];
2162         E = HashResultPointer[4];
2163
2164         do {
2165                 if (t < 20) {
2166                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2167                 } else if (t < 40) {
2168                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2169                 } else if (t < 60) {
2170                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2171                 } else {
2172                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2173                 }
2174                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2175                 E = D;
2176                 D = C;
2177                 C = S(30, B);
2178                 B = A;
2179                 A = TEMP;
2180         } while (++t <= 79);
2181
2182         HashResultPointer[0] += A;
2183         HashResultPointer[1] += B;
2184         HashResultPointer[2] += C;
2185         HashResultPointer[3] += D;
2186         HashResultPointer[4] += E;
2187
2188 }
2189
2190 /**
2191  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2192  * @RandomChallenge: pointer to the entry of host challenge random number array.
2193  * @HashWorking: pointer to the entry of the working hash array.
2194  *
2195  * This routine calculates the working hash array referred by @HashWorking
2196  * from the challenge random numbers associated with the host, referred by
2197  * @RandomChallenge. The result is put into the entry of the working hash
2198  * array and returned by reference through @HashWorking.
2199  **/
2200 static void
2201 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2202 {
2203         *HashWorking = (*RandomChallenge ^ *HashWorking);
2204 }
2205
2206 /**
2207  * lpfc_hba_init - Perform special handling for LC HBA initialization
2208  * @phba: pointer to lpfc hba data structure.
2209  * @hbainit: pointer to an array of unsigned 32-bit integers.
2210  *
2211  * This routine performs the special handling for LC HBA initialization.
2212  **/
2213 void
2214 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2215 {
2216         int t;
2217         uint32_t *HashWorking;
2218         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2219
2220         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2221         if (!HashWorking)
2222                 return;
2223
2224         HashWorking[0] = HashWorking[78] = *pwwnn++;
2225         HashWorking[1] = HashWorking[79] = *pwwnn;
2226
2227         for (t = 0; t < 7; t++)
2228                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2229
2230         lpfc_sha_init(hbainit);
2231         lpfc_sha_iterate(hbainit, HashWorking);
2232         kfree(HashWorking);
2233 }
2234
2235 /**
2236  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2237  * @vport: pointer to a virtual N_Port data structure.
2238  *
2239  * This routine performs the necessary cleanups before deleting the @vport.
2240  * It invokes the discovery state machine to perform necessary state
2241  * transitions and to release the ndlps associated with the @vport. Note,
2242  * the physical port is treated as @vport 0.
2243  **/
2244 void
2245 lpfc_cleanup(struct lpfc_vport *vport)
2246 {
2247         struct lpfc_hba   *phba = vport->phba;
2248         struct lpfc_nodelist *ndlp, *next_ndlp;
2249         int i = 0;
2250
2251         if (phba->link_state > LPFC_LINK_DOWN)
2252                 lpfc_port_link_failure(vport);
2253
2254         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2255                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2256                         ndlp = lpfc_enable_node(vport, ndlp,
2257                                                 NLP_STE_UNUSED_NODE);
2258                         if (!ndlp)
2259                                 continue;
2260                         spin_lock_irq(&phba->ndlp_lock);
2261                         NLP_SET_FREE_REQ(ndlp);
2262                         spin_unlock_irq(&phba->ndlp_lock);
2263                         /* Trigger the release of the ndlp memory */
2264                         lpfc_nlp_put(ndlp);
2265                         continue;
2266                 }
2267                 spin_lock_irq(&phba->ndlp_lock);
2268                 if (NLP_CHK_FREE_REQ(ndlp)) {
2269                         /* The ndlp should not be in memory free mode already */
2270                         spin_unlock_irq(&phba->ndlp_lock);
2271                         continue;
2272                 } else
2273                         /* Indicate request for freeing ndlp memory */
2274                         NLP_SET_FREE_REQ(ndlp);
2275                 spin_unlock_irq(&phba->ndlp_lock);
2276
2277                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2278                     ndlp->nlp_DID == Fabric_DID) {
2279                         /* Just free up ndlp with Fabric_DID for vports */
2280                         lpfc_nlp_put(ndlp);
2281                         continue;
2282                 }
2283
2284                 if (ndlp->nlp_type & NLP_FABRIC)
2285                         lpfc_disc_state_machine(vport, ndlp, NULL,
2286                                         NLP_EVT_DEVICE_RECOVERY);
2287
2288                 lpfc_disc_state_machine(vport, ndlp, NULL,
2289                                              NLP_EVT_DEVICE_RM);
2290
2291         }
2292
2293         /* At this point, ALL ndlp's should be gone
2294          * because of the previous NLP_EVT_DEVICE_RM.
2295          * Lets wait for this to happen, if needed.
2296          */
2297         while (!list_empty(&vport->fc_nodes)) {
2298                 if (i++ > 3000) {
2299                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2300                                 "0233 Nodelist not empty\n");
2301                         list_for_each_entry_safe(ndlp, next_ndlp,
2302                                                 &vport->fc_nodes, nlp_listp) {
2303                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2304                                                 LOG_NODE,
2305                                                 "0282 did:x%x ndlp:x%p "
2306                                                 "usgmap:x%x refcnt:%d\n",
2307                                                 ndlp->nlp_DID, (void *)ndlp,
2308                                                 ndlp->nlp_usg_map,
2309                                                 atomic_read(
2310                                                         &ndlp->kref.refcount));
2311                         }
2312                         break;
2313                 }
2314
2315                 /* Wait for any activity on ndlps to settle */
2316                 msleep(10);
2317         }
2318         lpfc_cleanup_vports_rrqs(vport, NULL);
2319 }
2320
2321 /**
2322  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2323  * @vport: pointer to a virtual N_Port data structure.
2324  *
2325  * This routine stops all the timers associated with a @vport. This function
2326  * is invoked before disabling or deleting a @vport. Note that the physical
2327  * port is treated as @vport 0.
2328  **/
2329 void
2330 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2331 {
2332         del_timer_sync(&vport->els_tmofunc);
2333         del_timer_sync(&vport->fc_fdmitmo);
2334         del_timer_sync(&vport->delayed_disc_tmo);
2335         lpfc_can_disctmo(vport);
2336         return;
2337 }
2338
2339 /**
2340  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2341  * @phba: pointer to lpfc hba data structure.
2342  *
2343  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2344  * caller of this routine should already hold the host lock.
2345  **/
2346 void
2347 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2348 {
2349         /* Clear pending FCF rediscovery wait flag */
2350         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2351
2352         /* Now, try to stop the timer */
2353         del_timer(&phba->fcf.redisc_wait);
2354 }
2355
2356 /**
2357  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2358  * @phba: pointer to lpfc hba data structure.
2359  *
2360  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2361  * checks whether the FCF rediscovery wait timer is pending with the host
2362  * lock held before proceeding with disabling the timer and clearing the
2363  * wait timer pendig flag.
2364  **/
2365 void
2366 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2367 {
2368         spin_lock_irq(&phba->hbalock);
2369         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2370                 /* FCF rediscovery timer already fired or stopped */
2371                 spin_unlock_irq(&phba->hbalock);
2372                 return;
2373         }
2374         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2375         /* Clear failover in progress flags */
2376         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2377         spin_unlock_irq(&phba->hbalock);
2378 }
2379
2380 /**
2381  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2382  * @phba: pointer to lpfc hba data structure.
2383  *
2384  * This routine stops all the timers associated with a HBA. This function is
2385  * invoked before either putting a HBA offline or unloading the driver.
2386  **/
2387 void
2388 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2389 {
2390         lpfc_stop_vport_timers(phba->pport);
2391         del_timer_sync(&phba->sli.mbox_tmo);
2392         del_timer_sync(&phba->fabric_block_timer);
2393         del_timer_sync(&phba->eratt_poll);
2394         del_timer_sync(&phba->hb_tmofunc);
2395         if (phba->sli_rev == LPFC_SLI_REV4) {
2396                 del_timer_sync(&phba->rrq_tmr);
2397                 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
2398         }
2399         phba->hb_outstanding = 0;
2400
2401         switch (phba->pci_dev_grp) {
2402         case LPFC_PCI_DEV_LP:
2403                 /* Stop any LightPulse device specific driver timers */
2404                 del_timer_sync(&phba->fcp_poll_timer);
2405                 break;
2406         case LPFC_PCI_DEV_OC:
2407                 /* Stop any OneConnect device sepcific driver timers */
2408                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2409                 break;
2410         default:
2411                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2412                                 "0297 Invalid device group (x%x)\n",
2413                                 phba->pci_dev_grp);
2414                 break;
2415         }
2416         return;
2417 }
2418
2419 /**
2420  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2421  * @phba: pointer to lpfc hba data structure.
2422  *
2423  * This routine marks a HBA's management interface as blocked. Once the HBA's
2424  * management interface is marked as blocked, all the user space access to
2425  * the HBA, whether they are from sysfs interface or libdfc interface will
2426  * all be blocked. The HBA is set to block the management interface when the
2427  * driver prepares the HBA interface for online or offline.
2428  **/
2429 static void
2430 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2431 {
2432         unsigned long iflag;
2433         uint8_t actcmd = MBX_HEARTBEAT;
2434         unsigned long timeout;
2435
2436
2437         spin_lock_irqsave(&phba->hbalock, iflag);
2438         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2439         if (phba->sli.mbox_active)
2440                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2441         spin_unlock_irqrestore(&phba->hbalock, iflag);
2442         /* Determine how long we might wait for the active mailbox
2443          * command to be gracefully completed by firmware.
2444          */
2445         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2446                         jiffies;
2447         /* Wait for the outstnading mailbox command to complete */
2448         while (phba->sli.mbox_active) {
2449                 /* Check active mailbox complete status every 2ms */
2450                 msleep(2);
2451                 if (time_after(jiffies, timeout)) {
2452                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2453                                 "2813 Mgmt IO is Blocked %x "
2454                                 "- mbox cmd %x still active\n",
2455                                 phba->sli.sli_flag, actcmd);
2456                         break;
2457                 }
2458         }
2459 }
2460
2461 /**
2462  * lpfc_online - Initialize and bring a HBA online
2463  * @phba: pointer to lpfc hba data structure.
2464  *
2465  * This routine initializes the HBA and brings a HBA online. During this
2466  * process, the management interface is blocked to prevent user space access
2467  * to the HBA interfering with the driver initialization.
2468  *
2469  * Return codes
2470  *   0 - successful
2471  *   1 - failed
2472  **/
2473 int
2474 lpfc_online(struct lpfc_hba *phba)
2475 {
2476         struct lpfc_vport *vport;
2477         struct lpfc_vport **vports;
2478         int i;
2479
2480         if (!phba)
2481                 return 0;
2482         vport = phba->pport;
2483
2484         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2485                 return 0;
2486
2487         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2488                         "0458 Bring Adapter online\n");
2489
2490         lpfc_block_mgmt_io(phba);
2491
2492         if (!lpfc_sli_queue_setup(phba)) {
2493                 lpfc_unblock_mgmt_io(phba);
2494                 return 1;
2495         }
2496
2497         if (phba->sli_rev == LPFC_SLI_REV4) {
2498                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2499                         lpfc_unblock_mgmt_io(phba);
2500                         return 1;
2501                 }
2502         } else {
2503                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2504                         lpfc_unblock_mgmt_io(phba);
2505                         return 1;
2506                 }
2507         }
2508
2509         vports = lpfc_create_vport_work_array(phba);
2510         if (vports != NULL)
2511                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2512                         struct Scsi_Host *shost;
2513                         shost = lpfc_shost_from_vport(vports[i]);
2514                         spin_lock_irq(shost->host_lock);
2515                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2516                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2517                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2518                         if (phba->sli_rev == LPFC_SLI_REV4)
2519                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2520                         spin_unlock_irq(shost->host_lock);
2521                 }
2522                 lpfc_destroy_vport_work_array(phba, vports);
2523
2524         lpfc_unblock_mgmt_io(phba);
2525         return 0;
2526 }
2527
2528 /**
2529  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2530  * @phba: pointer to lpfc hba data structure.
2531  *
2532  * This routine marks a HBA's management interface as not blocked. Once the
2533  * HBA's management interface is marked as not blocked, all the user space
2534  * access to the HBA, whether they are from sysfs interface or libdfc
2535  * interface will be allowed. The HBA is set to block the management interface
2536  * when the driver prepares the HBA interface for online or offline and then
2537  * set to unblock the management interface afterwards.
2538  **/
2539 void
2540 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2541 {
2542         unsigned long iflag;
2543
2544         spin_lock_irqsave(&phba->hbalock, iflag);
2545         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2546         spin_unlock_irqrestore(&phba->hbalock, iflag);
2547 }
2548
2549 /**
2550  * lpfc_offline_prep - Prepare a HBA to be brought offline
2551  * @phba: pointer to lpfc hba data structure.
2552  *
2553  * This routine is invoked to prepare a HBA to be brought offline. It performs
2554  * unregistration login to all the nodes on all vports and flushes the mailbox
2555  * queue to make it ready to be brought offline.
2556  **/
2557 void
2558 lpfc_offline_prep(struct lpfc_hba * phba)
2559 {
2560         struct lpfc_vport *vport = phba->pport;
2561         struct lpfc_nodelist  *ndlp, *next_ndlp;
2562         struct lpfc_vport **vports;
2563         struct Scsi_Host *shost;
2564         int i;
2565
2566         if (vport->fc_flag & FC_OFFLINE_MODE)
2567                 return;
2568
2569         lpfc_block_mgmt_io(phba);
2570
2571         lpfc_linkdown(phba);
2572
2573         /* Issue an unreg_login to all nodes on all vports */
2574         vports = lpfc_create_vport_work_array(phba);
2575         if (vports != NULL) {
2576                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2577                         if (vports[i]->load_flag & FC_UNLOADING)
2578                                 continue;
2579                         shost = lpfc_shost_from_vport(vports[i]);
2580                         spin_lock_irq(shost->host_lock);
2581                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2582                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2583                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2584                         spin_unlock_irq(shost->host_lock);
2585
2586                         shost = lpfc_shost_from_vport(vports[i]);
2587                         list_for_each_entry_safe(ndlp, next_ndlp,
2588                                                  &vports[i]->fc_nodes,
2589                                                  nlp_listp) {
2590                                 if (!NLP_CHK_NODE_ACT(ndlp))
2591                                         continue;
2592                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2593                                         continue;
2594                                 if (ndlp->nlp_type & NLP_FABRIC) {
2595                                         lpfc_disc_state_machine(vports[i], ndlp,
2596                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2597                                         lpfc_disc_state_machine(vports[i], ndlp,
2598                                                 NULL, NLP_EVT_DEVICE_RM);
2599                                 }
2600                                 spin_lock_irq(shost->host_lock);
2601                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2602                                 spin_unlock_irq(shost->host_lock);
2603                                 lpfc_unreg_rpi(vports[i], ndlp);
2604                         }
2605                 }
2606         }
2607         lpfc_destroy_vport_work_array(phba, vports);
2608
2609         lpfc_sli_mbox_sys_shutdown(phba);
2610 }
2611
2612 /**
2613  * lpfc_offline - Bring a HBA offline
2614  * @phba: pointer to lpfc hba data structure.
2615  *
2616  * This routine actually brings a HBA offline. It stops all the timers
2617  * associated with the HBA, brings down the SLI layer, and eventually
2618  * marks the HBA as in offline state for the upper layer protocol.
2619  **/
2620 void
2621 lpfc_offline(struct lpfc_hba *phba)
2622 {
2623         struct Scsi_Host  *shost;
2624         struct lpfc_vport **vports;
2625         int i;
2626
2627         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2628                 return;
2629
2630         /* stop port and all timers associated with this hba */
2631         lpfc_stop_port(phba);
2632         vports = lpfc_create_vport_work_array(phba);
2633         if (vports != NULL)
2634                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2635                         lpfc_stop_vport_timers(vports[i]);
2636         lpfc_destroy_vport_work_array(phba, vports);
2637         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2638                         "0460 Bring Adapter offline\n");
2639         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2640            now.  */
2641         lpfc_sli_hba_down(phba);
2642         spin_lock_irq(&phba->hbalock);
2643         phba->work_ha = 0;
2644         spin_unlock_irq(&phba->hbalock);
2645         vports = lpfc_create_vport_work_array(phba);
2646         if (vports != NULL)
2647                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2648                         shost = lpfc_shost_from_vport(vports[i]);
2649                         spin_lock_irq(shost->host_lock);
2650                         vports[i]->work_port_events = 0;
2651                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2652                         spin_unlock_irq(shost->host_lock);
2653                 }
2654         lpfc_destroy_vport_work_array(phba, vports);
2655 }
2656
2657 /**
2658  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2659  * @phba: pointer to lpfc hba data structure.
2660  *
2661  * This routine is to free all the SCSI buffers and IOCBs from the driver
2662  * list back to kernel. It is called from lpfc_pci_remove_one to free
2663  * the internal resources before the device is removed from the system.
2664  *
2665  * Return codes
2666  *   0 - successful (for now, it always returns 0)
2667  **/
2668 static int
2669 lpfc_scsi_free(struct lpfc_hba *phba)
2670 {
2671         struct lpfc_scsi_buf *sb, *sb_next;
2672         struct lpfc_iocbq *io, *io_next;
2673
2674         spin_lock_irq(&phba->hbalock);
2675         /* Release all the lpfc_scsi_bufs maintained by this host. */
2676         spin_lock(&phba->scsi_buf_list_lock);
2677         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2678                 list_del(&sb->list);
2679                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2680                               sb->dma_handle);
2681                 kfree(sb);
2682                 phba->total_scsi_bufs--;
2683         }
2684         spin_unlock(&phba->scsi_buf_list_lock);
2685
2686         /* Release all the lpfc_iocbq entries maintained by this host. */
2687         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2688                 list_del(&io->list);
2689                 kfree(io);
2690                 phba->total_iocbq_bufs--;
2691         }
2692         spin_unlock_irq(&phba->hbalock);
2693         return 0;
2694 }
2695
2696 /**
2697  * lpfc_create_port - Create an FC port
2698  * @phba: pointer to lpfc hba data structure.
2699  * @instance: a unique integer ID to this FC port.
2700  * @dev: pointer to the device data structure.
2701  *
2702  * This routine creates a FC port for the upper layer protocol. The FC port
2703  * can be created on top of either a physical port or a virtual port provided
2704  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2705  * and associates the FC port created before adding the shost into the SCSI
2706  * layer.
2707  *
2708  * Return codes
2709  *   @vport - pointer to the virtual N_Port data structure.
2710  *   NULL - port create failed.
2711  **/
2712 struct lpfc_vport *
2713 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2714 {
2715         struct lpfc_vport *vport;
2716         struct Scsi_Host  *shost;
2717         int error = 0;
2718
2719         if (dev != &phba->pcidev->dev)
2720                 shost = scsi_host_alloc(&lpfc_vport_template,
2721                                         sizeof(struct lpfc_vport));
2722         else
2723                 shost = scsi_host_alloc(&lpfc_template,
2724                                         sizeof(struct lpfc_vport));
2725         if (!shost)
2726                 goto out;
2727
2728         vport = (struct lpfc_vport *) shost->hostdata;
2729         vport->phba = phba;
2730         vport->load_flag |= FC_LOADING;
2731         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2732         vport->fc_rscn_flush = 0;
2733
2734         lpfc_get_vport_cfgparam(vport);
2735         shost->unique_id = instance;
2736         shost->max_id = LPFC_MAX_TARGET;
2737         shost->max_lun = vport->cfg_max_luns;
2738         shost->this_id = -1;
2739         shost->max_cmd_len = 16;
2740         if (phba->sli_rev == LPFC_SLI_REV4) {
2741                 shost->dma_boundary =
2742                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2743                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2744         }
2745
2746         /*
2747          * Set initial can_queue value since 0 is no longer supported and
2748          * scsi_add_host will fail. This will be adjusted later based on the
2749          * max xri value determined in hba setup.
2750          */
2751         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2752         if (dev != &phba->pcidev->dev) {
2753                 shost->transportt = lpfc_vport_transport_template;
2754                 vport->port_type = LPFC_NPIV_PORT;
2755         } else {
2756                 shost->transportt = lpfc_transport_template;
2757                 vport->port_type = LPFC_PHYSICAL_PORT;
2758         }
2759
2760         /* Initialize all internally managed lists. */
2761         INIT_LIST_HEAD(&vport->fc_nodes);
2762         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2763         spin_lock_init(&vport->work_port_lock);
2764
2765         init_timer(&vport->fc_disctmo);
2766         vport->fc_disctmo.function = lpfc_disc_timeout;
2767         vport->fc_disctmo.data = (unsigned long)vport;
2768
2769         init_timer(&vport->fc_fdmitmo);
2770         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2771         vport->fc_fdmitmo.data = (unsigned long)vport;
2772
2773         init_timer(&vport->els_tmofunc);
2774         vport->els_tmofunc.function = lpfc_els_timeout;
2775         vport->els_tmofunc.data = (unsigned long)vport;
2776
2777         init_timer(&vport->delayed_disc_tmo);
2778         vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo;
2779         vport->delayed_disc_tmo.data = (unsigned long)vport;
2780
2781         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2782         if (error)
2783                 goto out_put_shost;
2784
2785         spin_lock_irq(&phba->hbalock);
2786         list_add_tail(&vport->listentry, &phba->port_list);
2787         spin_unlock_irq(&phba->hbalock);
2788         return vport;
2789
2790 out_put_shost:
2791         scsi_host_put(shost);
2792 out:
2793         return NULL;
2794 }
2795
2796 /**
2797  * destroy_port -  destroy an FC port
2798  * @vport: pointer to an lpfc virtual N_Port data structure.
2799  *
2800  * This routine destroys a FC port from the upper layer protocol. All the
2801  * resources associated with the port are released.
2802  **/
2803 void
2804 destroy_port(struct lpfc_vport *vport)
2805 {
2806         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2807         struct lpfc_hba  *phba = vport->phba;
2808
2809         lpfc_debugfs_terminate(vport);
2810         fc_remove_host(shost);
2811         scsi_remove_host(shost);
2812
2813         spin_lock_irq(&phba->hbalock);
2814         list_del_init(&vport->listentry);
2815         spin_unlock_irq(&phba->hbalock);
2816
2817         lpfc_cleanup(vport);
2818         return;
2819 }
2820
2821 /**
2822  * lpfc_get_instance - Get a unique integer ID
2823  *
2824  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2825  * uses the kernel idr facility to perform the task.
2826  *
2827  * Return codes:
2828  *   instance - a unique integer ID allocated as the new instance.
2829  *   -1 - lpfc get instance failed.
2830  **/
2831 int
2832 lpfc_get_instance(void)
2833 {
2834         int instance = 0;
2835
2836         /* Assign an unused number */
2837         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2838                 return -1;
2839         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2840                 return -1;
2841         return instance;
2842 }
2843
2844 /**
2845  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2846  * @shost: pointer to SCSI host data structure.
2847  * @time: elapsed time of the scan in jiffies.
2848  *
2849  * This routine is called by the SCSI layer with a SCSI host to determine
2850  * whether the scan host is finished.
2851  *
2852  * Note: there is no scan_start function as adapter initialization will have
2853  * asynchronously kicked off the link initialization.
2854  *
2855  * Return codes
2856  *   0 - SCSI host scan is not over yet.
2857  *   1 - SCSI host scan is over.
2858  **/
2859 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2860 {
2861         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2862         struct lpfc_hba   *phba = vport->phba;
2863         int stat = 0;
2864
2865         spin_lock_irq(shost->host_lock);
2866
2867         if (vport->load_flag & FC_UNLOADING) {
2868                 stat = 1;
2869                 goto finished;
2870         }
2871         if (time >= 30 * HZ) {
2872                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2873                                 "0461 Scanning longer than 30 "
2874                                 "seconds.  Continuing initialization\n");
2875                 stat = 1;
2876                 goto finished;
2877         }
2878         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2879                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2880                                 "0465 Link down longer than 15 "
2881                                 "seconds.  Continuing initialization\n");
2882                 stat = 1;
2883                 goto finished;
2884         }
2885
2886         if (vport->port_state != LPFC_VPORT_READY)
2887                 goto finished;
2888         if (vport->num_disc_nodes || vport->fc_prli_sent)
2889                 goto finished;
2890         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2891                 goto finished;
2892         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2893                 goto finished;
2894
2895         stat = 1;
2896
2897 finished:
2898         spin_unlock_irq(shost->host_lock);
2899         return stat;
2900 }
2901
2902 /**
2903  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2904  * @shost: pointer to SCSI host data structure.
2905  *
2906  * This routine initializes a given SCSI host attributes on a FC port. The
2907  * SCSI host can be either on top of a physical port or a virtual port.
2908  **/
2909 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2910 {
2911         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2912         struct lpfc_hba   *phba = vport->phba;
2913         /*
2914          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2915          */
2916
2917         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2918         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2919         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2920
2921         memset(fc_host_supported_fc4s(shost), 0,
2922                sizeof(fc_host_supported_fc4s(shost)));
2923         fc_host_supported_fc4s(shost)[2] = 1;
2924         fc_host_supported_fc4s(shost)[7] = 1;
2925
2926         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2927                                  sizeof fc_host_symbolic_name(shost));
2928
2929         fc_host_supported_speeds(shost) = 0;
2930         if (phba->lmt & LMT_10Gb)
2931                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2932         if (phba->lmt & LMT_8Gb)
2933                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2934         if (phba->lmt & LMT_4Gb)
2935                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2936         if (phba->lmt & LMT_2Gb)
2937                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2938         if (phba->lmt & LMT_1Gb)
2939                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2940
2941         fc_host_maxframe_size(shost) =
2942                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2943                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2944
2945         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2946
2947         /* This value is also unchanging */
2948         memset(fc_host_active_fc4s(shost), 0,
2949                sizeof(fc_host_active_fc4s(shost)));
2950         fc_host_active_fc4s(shost)[2] = 1;
2951         fc_host_active_fc4s(shost)[7] = 1;
2952
2953         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2954         spin_lock_irq(shost->host_lock);
2955         vport->load_flag &= ~FC_LOADING;
2956         spin_unlock_irq(shost->host_lock);
2957 }
2958
2959 /**
2960  * lpfc_stop_port_s3 - Stop SLI3 device port
2961  * @phba: pointer to lpfc hba data structure.
2962  *
2963  * This routine is invoked to stop an SLI3 device port, it stops the device
2964  * from generating interrupts and stops the device driver's timers for the
2965  * device.
2966  **/
2967 static void
2968 lpfc_stop_port_s3(struct lpfc_hba *phba)
2969 {
2970         /* Clear all interrupt enable conditions */
2971         writel(0, phba->HCregaddr);
2972         readl(phba->HCregaddr); /* flush */
2973         /* Clear all pending interrupts */
2974         writel(0xffffffff, phba->HAregaddr);
2975         readl(phba->HAregaddr); /* flush */
2976
2977         /* Reset some HBA SLI setup states */
2978         lpfc_stop_hba_timers(phba);
2979         phba->pport->work_port_events = 0;
2980 }
2981
2982 /**
2983  * lpfc_stop_port_s4 - Stop SLI4 device port
2984  * @phba: pointer to lpfc hba data structure.
2985  *
2986  * This routine is invoked to stop an SLI4 device port, it stops the device
2987  * from generating interrupts and stops the device driver's timers for the
2988  * device.
2989  **/
2990 static void
2991 lpfc_stop_port_s4(struct lpfc_hba *phba)
2992 {
2993         /* Reset some HBA SLI4 setup states */
2994         lpfc_stop_hba_timers(phba);
2995         phba->pport->work_port_events = 0;
2996         phba->sli4_hba.intr_enable = 0;
2997 }
2998
2999 /**
3000  * lpfc_stop_port - Wrapper function for stopping hba port
3001  * @phba: Pointer to HBA context object.
3002  *
3003  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
3004  * the API jump table function pointer from the lpfc_hba struct.
3005  **/
3006 void
3007 lpfc_stop_port(struct lpfc_hba *phba)
3008 {
3009         phba->lpfc_stop_port(phba);
3010 }
3011
3012 /**
3013  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
3014  * @phba: Pointer to hba for which this call is being executed.
3015  *
3016  * This routine starts the timer waiting for the FCF rediscovery to complete.
3017  **/
3018 void
3019 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
3020 {
3021         unsigned long fcf_redisc_wait_tmo =
3022                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
3023         /* Start fcf rediscovery wait period timer */
3024         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
3025         spin_lock_irq(&phba->hbalock);
3026         /* Allow action to new fcf asynchronous event */
3027         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
3028         /* Mark the FCF rediscovery pending state */
3029         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
3030         spin_unlock_irq(&phba->hbalock);
3031 }
3032
3033 /**
3034  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
3035  * @ptr: Map to lpfc_hba data structure pointer.
3036  *
3037  * This routine is invoked when waiting for FCF table rediscover has been
3038  * timed out. If new FCF record(s) has (have) been discovered during the
3039  * wait period, a new FCF event shall be added to the FCOE async event
3040  * list, and then worker thread shall be waked up for processing from the
3041  * worker thread context.
3042  **/
3043 void
3044 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
3045 {
3046         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
3047
3048         /* Don't send FCF rediscovery event if timer cancelled */
3049         spin_lock_irq(&phba->hbalock);
3050         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
3051                 spin_unlock_irq(&phba->hbalock);
3052                 return;
3053         }
3054         /* Clear FCF rediscovery timer pending flag */
3055         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
3056         /* FCF rediscovery event to worker thread */
3057         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
3058         spin_unlock_irq(&phba->hbalock);
3059         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
3060                         "2776 FCF rediscover quiescent timer expired\n");
3061         /* wake up worker thread */
3062         lpfc_worker_wake_up(phba);
3063 }
3064
3065 /**
3066  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3067  * @phba: pointer to lpfc hba data structure.
3068  * @acqe_link: pointer to the async link completion queue entry.
3069  *
3070  * This routine is to parse the SLI4 link-attention link fault code and
3071  * translate it into the base driver's read link attention mailbox command
3072  * status.
3073  *
3074  * Return: Link-attention status in terms of base driver's coding.
3075  **/
3076 static uint16_t
3077 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3078                            struct lpfc_acqe_link *acqe_link)
3079 {
3080         uint16_t latt_fault;
3081
3082         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3083         case LPFC_ASYNC_LINK_FAULT_NONE:
3084         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3085         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3086                 latt_fault = 0;
3087                 break;
3088         default:
3089                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3090                                 "0398 Invalid link fault code: x%x\n",
3091                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3092                 latt_fault = MBXERR_ERROR;
3093                 break;
3094         }
3095         return latt_fault;
3096 }
3097
3098 /**
3099  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3100  * @phba: pointer to lpfc hba data structure.
3101  * @acqe_link: pointer to the async link completion queue entry.
3102  *
3103  * This routine is to parse the SLI4 link attention type and translate it
3104  * into the base driver's link attention type coding.
3105  *
3106  * Return: Link attention type in terms of base driver's coding.
3107  **/
3108 static uint8_t
3109 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3110                           struct lpfc_acqe_link *acqe_link)
3111 {
3112         uint8_t att_type;
3113
3114         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3115         case LPFC_ASYNC_LINK_STATUS_DOWN:
3116         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3117                 att_type = LPFC_ATT_LINK_DOWN;
3118                 break;
3119         case LPFC_ASYNC_LINK_STATUS_UP:
3120                 /* Ignore physical link up events - wait for logical link up */
3121                 att_type = LPFC_ATT_RESERVED;
3122                 break;
3123         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3124                 att_type = LPFC_ATT_LINK_UP;
3125                 break;
3126         default:
3127                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3128                                 "0399 Invalid link attention type: x%x\n",
3129                                 bf_get(lpfc_acqe_link_status, acqe_link));
3130                 att_type = LPFC_ATT_RESERVED;
3131                 break;
3132         }
3133         return att_type;
3134 }
3135
3136 /**
3137  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3138  * @phba: pointer to lpfc hba data structure.
3139  * @acqe_link: pointer to the async link completion queue entry.
3140  *
3141  * This routine is to parse the SLI4 link-attention link speed and translate
3142  * it into the base driver's link-attention link speed coding.
3143  *
3144  * Return: Link-attention link speed in terms of base driver's coding.
3145  **/
3146 static uint8_t
3147 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3148                                 struct lpfc_acqe_link *acqe_link)
3149 {
3150         uint8_t link_speed;
3151
3152         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3153         case LPFC_ASYNC_LINK_SPEED_ZERO:
3154         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3155         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3156                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3157                 break;
3158         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3159                 link_speed = LPFC_LINK_SPEED_1GHZ;
3160                 break;
3161         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3162                 link_speed = LPFC_LINK_SPEED_10GHZ;
3163                 break;
3164         default:
3165                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3166                                 "0483 Invalid link-attention link speed: x%x\n",
3167                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3168                 link_speed = LPFC_LINK_SPEED_UNKNOWN;
3169                 break;
3170         }
3171         return link_speed;
3172 }
3173
3174 /**
3175  * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event
3176  * @phba: pointer to lpfc hba data structure.
3177  * @acqe_link: pointer to the async link completion queue entry.
3178  *
3179  * This routine is to handle the SLI4 asynchronous FCoE link event.
3180  **/
3181 static void
3182 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3183                          struct lpfc_acqe_link *acqe_link)
3184 {
3185         struct lpfc_dmabuf *mp;
3186         LPFC_MBOXQ_t *pmb;
3187         MAILBOX_t *mb;
3188         struct lpfc_mbx_read_top *la;
3189         uint8_t att_type;
3190         int rc;
3191
3192         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3193         if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP)
3194                 return;
3195         phba->fcoe_eventtag = acqe_link->event_tag;
3196         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3197         if (!pmb) {
3198                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3199                                 "0395 The mboxq allocation failed\n");
3200                 return;
3201         }
3202         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3203         if (!mp) {
3204                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3205                                 "0396 The lpfc_dmabuf allocation failed\n");
3206                 goto out_free_pmb;
3207         }
3208         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3209         if (!mp->virt) {
3210                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3211                                 "0397 The mbuf allocation failed\n");
3212                 goto out_free_dmabuf;
3213         }
3214
3215         /* Cleanup any outstanding ELS commands */
3216         lpfc_els_flush_all_cmd(phba);
3217
3218         /* Block ELS IOCBs until we have done process link event */
3219         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3220
3221         /* Update link event statistics */
3222         phba->sli.slistat.link_event++;
3223
3224         /* Create lpfc_handle_latt mailbox command from link ACQE */
3225         lpfc_read_topology(phba, pmb, mp);
3226         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3227         pmb->vport = phba->pport;
3228
3229         /* Keep the link status for extra SLI4 state machine reference */
3230         phba->sli4_hba.link_state.speed =
3231                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3232         phba->sli4_hba.link_state.duplex =
3233                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3234         phba->sli4_hba.link_state.status =
3235                                 bf_get(lpfc_acqe_link_status, acqe_link);
3236         phba->sli4_hba.link_state.type =
3237                                 bf_get(lpfc_acqe_link_type, acqe_link);
3238         phba->sli4_hba.link_state.number =
3239                                 bf_get(lpfc_acqe_link_number, acqe_link);
3240         phba->sli4_hba.link_state.fault =
3241                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3242         phba->sli4_hba.link_state.logical_speed =
3243                         bf_get(lpfc_acqe_logical_link_speed, acqe_link);
3244         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3245                         "2900 Async FC/FCoE Link event - Speed:%dGBit "
3246                         "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d "
3247                         "Logical speed:%dMbps Fault:%d\n",
3248                         phba->sli4_hba.link_state.speed,
3249                         phba->sli4_hba.link_state.topology,
3250                         phba->sli4_hba.link_state.status,
3251                         phba->sli4_hba.link_state.type,
3252                         phba->sli4_hba.link_state.number,
3253                         phba->sli4_hba.link_state.logical_speed * 10,
3254                         phba->sli4_hba.link_state.fault);
3255         /*
3256          * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch
3257          * topology info. Note: Optional for non FC-AL ports.
3258          */
3259         if (!(phba->hba_flag & HBA_FCOE_MODE)) {
3260                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3261                 if (rc == MBX_NOT_FINISHED)
3262                         goto out_free_dmabuf;
3263                 return;
3264         }
3265         /*
3266          * For FCoE Mode: fill in all the topology information we need and call
3267          * the READ_TOPOLOGY completion routine to continue without actually
3268          * sending the READ_TOPOLOGY mailbox command to the port.
3269          */
3270         /* Parse and translate status field */
3271         mb = &pmb->u.mb;
3272         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3273
3274         /* Parse and translate link attention fields */
3275         la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop;
3276         la->eventTag = acqe_link->event_tag;
3277         bf_set(lpfc_mbx_read_top_att_type, la, att_type);
3278         bf_set(lpfc_mbx_read_top_link_spd, la,
3279                lpfc_sli4_parse_latt_link_speed(phba, acqe_link));
3280
3281         /* Fake the the following irrelvant fields */
3282         bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT);
3283         bf_set(lpfc_mbx_read_top_alpa_granted, la, 0);
3284         bf_set(lpfc_mbx_read_top_il, la, 0);
3285         bf_set(lpfc_mbx_read_top_pb, la, 0);
3286         bf_set(lpfc_mbx_read_top_fa, la, 0);
3287         bf_set(lpfc_mbx_read_top_mm, la, 0);
3288
3289         /* Invoke the lpfc_handle_latt mailbox command callback function */
3290         lpfc_mbx_cmpl_read_topology(phba, pmb);
3291
3292         return;
3293
3294 out_free_dmabuf:
3295         kfree(mp);
3296 out_free_pmb:
3297         mempool_free(pmb, phba->mbox_mem_pool);
3298 }
3299
3300 /**
3301  * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event
3302  * @phba: pointer to lpfc hba data structure.
3303  * @acqe_fc: pointer to the async fc completion queue entry.
3304  *
3305  * This routine is to handle the SLI4 asynchronous FC event. It will simply log
3306  * that the event was received and then issue a read_topology mailbox command so
3307  * that the rest of the driver will treat it the same as SLI3.
3308  **/
3309 static void
3310 lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc)
3311 {
3312         struct lpfc_dmabuf *mp;
3313         LPFC_MBOXQ_t *pmb;
3314         int rc;
3315
3316         if (bf_get(lpfc_trailer_type, acqe_fc) !=
3317             LPFC_FC_LA_EVENT_TYPE_FC_LINK) {
3318                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3319                                 "2895 Non FC link Event detected.(%d)\n",
3320                                 bf_get(lpfc_trailer_type, acqe_fc));
3321                 return;
3322         }
3323         /* Keep the link status for extra SLI4 state machine reference */
3324         phba->sli4_hba.link_state.speed =
3325                                 bf_get(lpfc_acqe_fc_la_speed, acqe_fc);
3326         phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL;
3327         phba->sli4_hba.link_state.topology =
3328                                 bf_get(lpfc_acqe_fc_la_topology, acqe_fc);
3329         phba->sli4_hba.link_state.status =
3330                                 bf_get(lpfc_acqe_fc_la_att_type, acqe_fc);
3331         phba->sli4_hba.link_state.type =
3332                                 bf_get(lpfc_acqe_fc_la_port_type, acqe_fc);
3333         phba->sli4_hba.link_state.number =
3334                                 bf_get(lpfc_acqe_fc_la_port_number, acqe_fc);
3335         phba->sli4_hba.link_state.fault =
3336                                 bf_get(lpfc_acqe_link_fault, acqe_fc);
3337         phba->sli4_hba.link_state.logical_speed =
3338                                 bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc);
3339         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3340                         "2896 Async FC event - Speed:%dGBaud Topology:x%x "
3341                         "LA Type:x%x Port Type:%d Port Number:%d Logical speed:"
3342                         "%dMbps Fault:%d\n",
3343                         phba->sli4_hba.link_state.speed,
3344                         phba->sli4_hba.link_state.topology,
3345                         phba->sli4_hba.link_state.status,
3346                         phba->sli4_hba.link_state.type,
3347                         phba->sli4_hba.link_state.number,
3348                         phba->sli4_hba.link_state.logical_speed * 10,
3349                         phba->sli4_hba.link_state.fault);
3350         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3351         if (!pmb) {
3352                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3353                                 "2897 The mboxq allocation failed\n");
3354                 return;
3355         }
3356         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3357         if (!mp) {
3358                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3359                                 "2898 The lpfc_dmabuf allocation failed\n");
3360                 goto out_free_pmb;
3361         }
3362         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3363         if (!mp->virt) {
3364                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3365                                 "2899 The mbuf allocation failed\n");
3366                 goto out_free_dmabuf;
3367         }
3368
3369         /* Cleanup any outstanding ELS commands */
3370         lpfc_els_flush_all_cmd(phba);
3371
3372         /* Block ELS IOCBs until we have done process link event */
3373         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3374
3375         /* Update link event statistics */
3376         phba->sli.slistat.link_event++;
3377
3378         /* Create lpfc_handle_latt mailbox command from link ACQE */
3379         lpfc_read_topology(phba, pmb, mp);
3380         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology;
3381         pmb->vport = phba->pport;
3382
3383         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3384         if (rc == MBX_NOT_FINISHED)
3385                 goto out_free_dmabuf;
3386         return;
3387
3388 out_free_dmabuf:
3389         kfree(mp);
3390 out_free_pmb:
3391         mempool_free(pmb, phba->mbox_mem_pool);
3392 }
3393
3394 /**
3395  * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event
3396  * @phba: pointer to lpfc hba data structure.
3397  * @acqe_fc: pointer to the async SLI completion queue entry.
3398  *
3399  * This routine is to handle the SLI4 asynchronous SLI events.
3400  **/
3401 static void
3402 lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli)
3403 {
3404         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3405                         "2901 Async SLI event - Event Data1:x%08x Event Data2:"
3406                         "x%08x SLI Event Type:%d",
3407                         acqe_sli->event_data1, acqe_sli->event_data2,
3408                         bf_get(lpfc_trailer_type, acqe_sli));
3409         return;
3410 }
3411
3412 /**
3413  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3414  * @vport: pointer to vport data structure.
3415  *
3416  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3417  * response to a CVL event.
3418  *
3419  * Return the pointer to the ndlp with the vport if successful, otherwise
3420  * return NULL.
3421  **/
3422 static struct lpfc_nodelist *
3423 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3424 {
3425         struct lpfc_nodelist *ndlp;
3426         struct Scsi_Host *shost;
3427         struct lpfc_hba *phba;
3428
3429         if (!vport)
3430                 return NULL;
3431         phba = vport->phba;
3432         if (!phba)
3433                 return NULL;
3434         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3435         if (!ndlp) {
3436                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3437                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3438                 if (!ndlp)
3439                         return 0;
3440                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3441                 /* Set the node type */
3442                 ndlp->nlp_type |= NLP_FABRIC;
3443                 /* Put ndlp onto node list */
3444                 lpfc_enqueue_node(vport, ndlp);
3445         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3446                 /* re-setup ndlp without removing from node list */
3447                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3448                 if (!ndlp)
3449                         return 0;
3450         }
3451         if ((phba->pport->port_state < LPFC_FLOGI) &&
3452                 (phba->pport->port_state != LPFC_VPORT_FAILED))
3453                 return NULL;
3454         /* If virtual link is not yet instantiated ignore CVL */
3455         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC)
3456                 && (vport->port_state != LPFC_VPORT_FAILED))
3457                 return NULL;
3458         shost = lpfc_shost_from_vport(vport);
3459         if (!shost)
3460                 return NULL;
3461         lpfc_linkdown_port(vport);
3462         lpfc_cleanup_pending_mbox(vport);
3463         spin_lock_irq(shost->host_lock);
3464         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3465         spin_unlock_irq(shost->host_lock);
3466
3467         return ndlp;
3468 }
3469
3470 /**
3471  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3472  * @vport: pointer to lpfc hba data structure.
3473  *
3474  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3475  * response to a FCF dead event.
3476  **/
3477 static void
3478 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3479 {
3480         struct lpfc_vport **vports;
3481         int i;
3482
3483         vports = lpfc_create_vport_work_array(phba);
3484         if (vports)
3485                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3486                         lpfc_sli4_perform_vport_cvl(vports[i]);
3487         lpfc_destroy_vport_work_array(phba, vports);
3488 }
3489
3490 /**
3491  * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event
3492  * @phba: pointer to lpfc hba data structure.
3493  * @acqe_link: pointer to the async fcoe completion queue entry.
3494  *
3495  * This routine is to handle the SLI4 asynchronous fcoe event.
3496  **/
3497 static void
3498 lpfc_sli4_async_fip_evt(struct lpfc_hba *phba,
3499                         struct lpfc_acqe_fip *acqe_fip)
3500 {
3501         uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip);
3502         int rc;
3503         struct lpfc_vport *vport;
3504         struct lpfc_nodelist *ndlp;
3505         struct Scsi_Host  *shost;
3506         int active_vlink_present;
3507         struct lpfc_vport **vports;
3508         int i;
3509
3510         phba->fc_eventTag = acqe_fip->event_tag;
3511         phba->fcoe_eventtag = acqe_fip->event_tag;
3512         switch (event_type) {
3513         case LPFC_FIP_EVENT_TYPE_NEW_FCF:
3514         case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD:
3515                 if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF)
3516                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3517                                         LOG_DISCOVERY,
3518                                         "2546 New FCF event, evt_tag:x%x, "
3519                                         "index:x%x\n",
3520                                         acqe_fip->event_tag,
3521                                         acqe_fip->index);
3522                 else
3523                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3524                                         LOG_DISCOVERY,
3525                                         "2788 FCF param modified event, "
3526                                         "evt_tag:x%x, index:x%x\n",
3527                                         acqe_fip->event_tag,
3528                                         acqe_fip->index);
3529                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3530                         /*
3531                          * During period of FCF discovery, read the FCF
3532                          * table record indexed by the event to update
3533                          * FCF roundrobin failover eligible FCF bmask.
3534                          */
3535                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3536                                         LOG_DISCOVERY,
3537                                         "2779 Read FCF (x%x) for updating "
3538                                         "roundrobin FCF failover bmask\n",
3539                                         acqe_fip->index);
3540                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index);
3541                 }
3542
3543                 /* If the FCF discovery is in progress, do nothing. */
3544                 spin_lock_irq(&phba->hbalock);
3545                 if (phba->hba_flag & FCF_TS_INPROG) {
3546                         spin_unlock_irq(&phba->hbalock);
3547                         break;
3548                 }
3549                 /* If fast FCF failover rescan event is pending, do nothing */
3550                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3551                         spin_unlock_irq(&phba->hbalock);
3552                         break;
3553                 }
3554
3555                 /* If the FCF has been in discovered state, do nothing. */
3556                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3557                         spin_unlock_irq(&phba->hbalock);
3558                         break;
3559                 }
3560                 spin_unlock_irq(&phba->hbalock);
3561
3562                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3563                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3564                                 "2770 Start FCF table scan per async FCF "
3565                                 "event, evt_tag:x%x, index:x%x\n",
3566                                 acqe_fip->event_tag, acqe_fip->index);
3567                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3568                                                      LPFC_FCOE_FCF_GET_FIRST);
3569                 if (rc)
3570                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3571                                         "2547 Issue FCF scan read FCF mailbox "
3572                                         "command failed (x%x)\n", rc);
3573                 break;
3574
3575         case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL:
3576                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3577                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3578                         bf_get(lpfc_acqe_fip_fcf_count, acqe_fip),
3579                         acqe_fip->event_tag);
3580                 break;
3581
3582         case LPFC_FIP_EVENT_TYPE_FCF_DEAD:
3583                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3584                         "2549 FCF (x%x) disconnected from network, "
3585                         "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag);
3586                 /*
3587                  * If we are in the middle of FCF failover process, clear
3588                  * the corresponding FCF bit in the roundrobin bitmap.
3589                  */
3590                 spin_lock_irq(&phba->hbalock);
3591                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3592                         spin_unlock_irq(&phba->hbalock);
3593                         /* Update FLOGI FCF failover eligible FCF bmask */
3594                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index);
3595                         break;
3596                 }
3597                 spin_unlock_irq(&phba->hbalock);
3598
3599                 /* If the event is not for currently used fcf do nothing */
3600                 if (phba->fcf.current_rec.fcf_indx != acqe_fip->index)
3601                         break;
3602
3603                 /*
3604                  * Otherwise, request the port to rediscover the entire FCF
3605                  * table for a fast recovery from case that the current FCF
3606                  * is no longer valid as we are not in the middle of FCF
3607                  * failover process already.
3608                  */
3609                 spin_lock_irq(&phba->hbalock);
3610                 /* Mark the fast failover process in progress */
3611                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3612                 spin_unlock_irq(&phba->hbalock);
3613
3614                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3615                                 "2771 Start FCF fast failover process due to "
3616                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3617                                 "\n", acqe_fip->event_tag, acqe_fip->index);
3618                 rc = lpfc_sli4_redisc_fcf_table(phba);
3619                 if (rc) {
3620                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3621                                         LOG_DISCOVERY,
3622                                         "2772 Issue FCF rediscover mabilbox "
3623                                         "command failed, fail through to FCF "
3624                                         "dead event\n");
3625                         spin_lock_irq(&phba->hbalock);
3626                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3627                         spin_unlock_irq(&phba->hbalock);
3628                         /*
3629                          * Last resort will fail over by treating this
3630                          * as a link down to FCF registration.
3631                          */
3632                         lpfc_sli4_fcf_dead_failthrough(phba);
3633                 } else {
3634                         /* Reset FCF roundrobin bmask for new discovery */
3635                         memset(phba->fcf.fcf_rr_bmask, 0,
3636                                sizeof(*phba->fcf.fcf_rr_bmask));
3637                         /*
3638                          * Handling fast FCF failover to a DEAD FCF event is
3639                          * considered equalivant to receiving CVL to all vports.
3640                          */
3641                         lpfc_sli4_perform_all_vport_cvl(phba);
3642                 }
3643                 break;
3644         case LPFC_FIP_EVENT_TYPE_CVL:
3645                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3646                         "2718 Clear Virtual Link Received for VPI 0x%x"
3647                         " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag);
3648                 vport = lpfc_find_vport_by_vpid(phba,
3649                                 acqe_fip->index - phba->vpi_base);
3650                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3651                 if (!ndlp)
3652                         break;
3653                 active_vlink_present = 0;
3654
3655                 vports = lpfc_create_vport_work_array(phba);
3656                 if (vports) {
3657                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3658                                         i++) {
3659                                 if ((!(vports[i]->fc_flag &
3660                                         FC_VPORT_CVL_RCVD)) &&
3661                                         (vports[i]->port_state > LPFC_FDISC)) {
3662                                         active_vlink_present = 1;
3663                                         break;
3664                                 }
3665                         }
3666                         lpfc_destroy_vport_work_array(phba, vports);
3667                 }
3668
3669                 if (active_vlink_present) {
3670                         /*
3671                          * If there are other active VLinks present,
3672                          * re-instantiate the Vlink using FDISC.
3673                          */
3674                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3675                         shost = lpfc_shost_from_vport(vport);
3676                         spin_lock_irq(shost->host_lock);
3677                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3678                         spin_unlock_irq(shost->host_lock);
3679                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3680                         vport->port_state = LPFC_FDISC;
3681                 } else {
3682                         /*
3683                          * Otherwise, we request port to rediscover
3684                          * the entire FCF table for a fast recovery
3685                          * from possible case that the current FCF
3686                          * is no longer valid if we are not already
3687                          * in the FCF failover process.
3688                          */
3689                         spin_lock_irq(&phba->hbalock);
3690                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3691                                 spin_unlock_irq(&phba->hbalock);
3692                                 break;
3693                         }
3694                         /* Mark the fast failover process in progress */
3695                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3696                         spin_unlock_irq(&phba->hbalock);
3697                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3698                                         LOG_DISCOVERY,
3699                                         "2773 Start FCF failover per CVL, "
3700                                         "evt_tag:x%x\n", acqe_fip->event_tag);
3701                         rc = lpfc_sli4_redisc_fcf_table(phba);
3702                         if (rc) {
3703                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3704                                                 LOG_DISCOVERY,
3705                                                 "2774 Issue FCF rediscover "
3706                                                 "mabilbox command failed, "
3707                                                 "through to CVL event\n");
3708                                 spin_lock_irq(&phba->hbalock);
3709                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3710                                 spin_unlock_irq(&phba->hbalock);
3711                                 /*
3712                                  * Last resort will be re-try on the
3713                                  * the current registered FCF entry.
3714                                  */
3715                                 lpfc_retry_pport_discovery(phba);
3716                         } else
3717                                 /*
3718                                  * Reset FCF roundrobin bmask for new
3719                                  * discovery.
3720                                  */
3721                                 memset(phba->fcf.fcf_rr_bmask, 0,
3722                                        sizeof(*phba->fcf.fcf_rr_bmask));
3723                 }
3724                 break;
3725         default:
3726                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3727                         "0288 Unknown FCoE event type 0x%x event tag "
3728                         "0x%x\n", event_type, acqe_fip->event_tag);
3729                 break;
3730         }
3731 }
3732
3733 /**
3734  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3735  * @phba: pointer to lpfc hba data structure.
3736  * @acqe_link: pointer to the async dcbx completion queue entry.
3737  *
3738  * This routine is to handle the SLI4 asynchronous dcbx event.
3739  **/
3740 static void
3741 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3742                          struct lpfc_acqe_dcbx *acqe_dcbx)
3743 {
3744         phba->fc_eventTag = acqe_dcbx->event_tag;
3745         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3746                         "0290 The SLI4 DCBX asynchronous event is not "
3747                         "handled yet\n");
3748 }
3749
3750 /**
3751  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3752  * @phba: pointer to lpfc hba data structure.
3753  * @acqe_link: pointer to the async grp5 completion queue entry.
3754  *
3755  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3756  * is an asynchronous notified of a logical link speed change.  The Port
3757  * reports the logical link speed in units of 10Mbps.
3758  **/
3759 static void
3760 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3761                          struct lpfc_acqe_grp5 *acqe_grp5)
3762 {
3763         uint16_t prev_ll_spd;
3764
3765         phba->fc_eventTag = acqe_grp5->event_tag;
3766         phba->fcoe_eventtag = acqe_grp5->event_tag;
3767         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3768         phba->sli4_hba.link_state.logical_speed =
3769                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3770         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3771                         "2789 GRP5 Async Event: Updating logical link speed "
3772                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3773                         (phba->sli4_hba.link_state.logical_speed*10));
3774 }
3775
3776 /**
3777  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3778  * @phba: pointer to lpfc hba data structure.
3779  *
3780  * This routine is invoked by the worker thread to process all the pending
3781  * SLI4 asynchronous events.
3782  **/
3783 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3784 {
3785         struct lpfc_cq_event *cq_event;
3786
3787         /* First, declare the async event has been handled */
3788         spin_lock_irq(&phba->hbalock);
3789         phba->hba_flag &= ~ASYNC_EVENT;
3790         spin_unlock_irq(&phba->hbalock);
3791         /* Now, handle all the async events */
3792         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3793                 /* Get the first event from the head of the event queue */
3794                 spin_lock_irq(&phba->hbalock);
3795                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3796                                  cq_event, struct lpfc_cq_event, list);
3797                 spin_unlock_irq(&phba->hbalock);
3798                 /* Process the asynchronous event */
3799                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3800                 case LPFC_TRAILER_CODE_LINK:
3801                         lpfc_sli4_async_link_evt(phba,
3802                                                  &cq_event->cqe.acqe_link);
3803                         break;
3804                 case LPFC_TRAILER_CODE_FCOE:
3805                         lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip);
3806                         break;
3807                 case LPFC_TRAILER_CODE_DCBX:
3808                         lpfc_sli4_async_dcbx_evt(phba,
3809                                                  &cq_event->cqe.acqe_dcbx);
3810                         break;
3811                 case LPFC_TRAILER_CODE_GRP5:
3812                         lpfc_sli4_async_grp5_evt(phba,
3813                                                  &cq_event->cqe.acqe_grp5);
3814                         break;
3815                 case LPFC_TRAILER_CODE_FC:
3816                         lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc);
3817                         break;
3818                 case LPFC_TRAILER_CODE_SLI:
3819                         lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli);
3820                         break;
3821                 default:
3822                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3823                                         "1804 Invalid asynchrous event code: "
3824                                         "x%x\n", bf_get(lpfc_trailer_code,
3825                                         &cq_event->cqe.mcqe_cmpl));
3826                         break;
3827                 }
3828                 /* Free the completion event processed to the free pool */
3829                 lpfc_sli4_cq_event_release(phba, cq_event);
3830         }
3831 }
3832
3833 /**
3834  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3835  * @phba: pointer to lpfc hba data structure.
3836  *
3837  * This routine is invoked by the worker thread to process FCF table
3838  * rediscovery pending completion event.
3839  **/
3840 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3841 {
3842         int rc;
3843
3844         spin_lock_irq(&phba->hbalock);
3845         /* Clear FCF rediscovery timeout event */
3846         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3847         /* Clear driver fast failover FCF record flag */
3848         phba->fcf.failover_rec.flag = 0;
3849         /* Set state for FCF fast failover */
3850         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3851         spin_unlock_irq(&phba->hbalock);
3852
3853         /* Scan FCF table from the first entry to re-discover SAN */
3854         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3855                         "2777 Start post-quiescent FCF table scan\n");
3856         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3857         if (rc)
3858                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3859                                 "2747 Issue FCF scan read FCF mailbox "
3860                                 "command failed 0x%x\n", rc);
3861 }
3862
3863 /**
3864  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3865  * @phba: pointer to lpfc hba data structure.
3866  * @dev_grp: The HBA PCI-Device group number.
3867  *
3868  * This routine is invoked to set up the per HBA PCI-Device group function
3869  * API jump table entries.
3870  *
3871  * Return: 0 if success, otherwise -ENODEV
3872  **/
3873 int
3874 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3875 {
3876         int rc;
3877
3878         /* Set up lpfc PCI-device group */
3879         phba->pci_dev_grp = dev_grp;
3880
3881         /* The LPFC_PCI_DEV_OC uses SLI4 */
3882         if (dev_grp == LPFC_PCI_DEV_OC)
3883                 phba->sli_rev = LPFC_SLI_REV4;
3884
3885         /* Set up device INIT API function jump table */
3886         rc = lpfc_init_api_table_setup(phba, dev_grp);
3887         if (rc)
3888                 return -ENODEV;
3889         /* Set up SCSI API function jump table */
3890         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3891         if (rc)
3892                 return -ENODEV;
3893         /* Set up SLI API function jump table */
3894         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3895         if (rc)
3896                 return -ENODEV;
3897         /* Set up MBOX API function jump table */
3898         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3899         if (rc)
3900                 return -ENODEV;
3901
3902         return 0;
3903 }
3904
3905 /**
3906  * lpfc_log_intr_mode - Log the active interrupt mode
3907  * @phba: pointer to lpfc hba data structure.
3908  * @intr_mode: active interrupt mode adopted.
3909  *
3910  * This routine it invoked to log the currently used active interrupt mode
3911  * to the device.
3912  **/
3913 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3914 {
3915         switch (intr_mode) {
3916         case 0:
3917                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3918                                 "0470 Enable INTx interrupt mode.\n");
3919                 break;
3920         case 1:
3921                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3922                                 "0481 Enabled MSI interrupt mode.\n");
3923                 break;
3924         case 2:
3925                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3926                                 "0480 Enabled MSI-X interrupt mode.\n");
3927                 break;
3928         default:
3929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3930                                 "0482 Illegal interrupt mode.\n");
3931                 break;
3932         }
3933         return;
3934 }
3935
3936 /**
3937  * lpfc_enable_pci_dev - Enable a generic PCI device.
3938  * @phba: pointer to lpfc hba data structure.
3939  *
3940  * This routine is invoked to enable the PCI device that is common to all
3941  * PCI devices.
3942  *
3943  * Return codes
3944  *      0 - successful
3945  *      other values - error
3946  **/
3947 static int
3948 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3949 {
3950         struct pci_dev *pdev;
3951         int bars;
3952
3953         /* Obtain PCI device reference */
3954         if (!phba->pcidev)
3955                 goto out_error;
3956         else
3957                 pdev = phba->pcidev;
3958         /* Select PCI BARs */
3959         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3960         /* Enable PCI device */
3961         if (pci_enable_device_mem(pdev))
3962                 goto out_error;
3963         /* Request PCI resource for the device */
3964         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3965                 goto out_disable_device;
3966         /* Set up device as PCI master and save state for EEH */
3967         pci_set_master(pdev);
3968         pci_try_set_mwi(pdev);
3969         pci_save_state(pdev);
3970
3971         /* PCIe EEH recovery on powerpc platforms needs fundamental reset */
3972         if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
3973                 pdev->needs_freset = 1;
3974
3975         return 0;
3976
3977 out_disable_device:
3978         pci_disable_device(pdev);
3979 out_error:
3980         return -ENODEV;
3981 }
3982
3983 /**
3984  * lpfc_disable_pci_dev - Disable a generic PCI device.
3985  * @phba: pointer to lpfc hba data structure.
3986  *
3987  * This routine is invoked to disable the PCI device that is common to all
3988  * PCI devices.
3989  **/
3990 static void
3991 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3992 {
3993         struct pci_dev *pdev;
3994         int bars;
3995
3996         /* Obtain PCI device reference */
3997         if (!phba->pcidev)
3998                 return;
3999         else
4000                 pdev = phba->pcidev;
4001         /* Select PCI BARs */
4002         bars = pci_select_bars(pdev, IORESOURCE_MEM);
4003         /* Release PCI resource and disable PCI device */
4004         pci_release_selected_regions(pdev, bars);
4005         pci_disable_device(pdev);
4006         /* Null out PCI private reference to driver */
4007         pci_set_drvdata(pdev, NULL);
4008
4009         return;
4010 }
4011
4012 /**
4013  * lpfc_reset_hba - Reset a hba
4014  * @phba: pointer to lpfc hba data structure.
4015  *
4016  * This routine is invoked to reset a hba device. It brings the HBA
4017  * offline, performs a board restart, and then brings the board back
4018  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
4019  * on outstanding mailbox commands.
4020  **/
4021 void
4022 lpfc_reset_hba(struct lpfc_hba *phba)
4023 {
4024         /* If resets are disabled then set error state and return. */
4025         if (!phba->cfg_enable_hba_reset) {
4026                 phba->link_state = LPFC_HBA_ERROR;
4027                 return;
4028         }
4029         lpfc_offline_prep(phba);
4030         lpfc_offline(phba);
4031         lpfc_sli_brdrestart(phba);
4032         lpfc_online(phba);
4033         lpfc_unblock_mgmt_io(phba);
4034 }
4035
4036 /**
4037  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
4038  * @phba: pointer to lpfc hba data structure.
4039  *
4040  * This routine is invoked to set up the driver internal resources specific to
4041  * support the SLI-3 HBA device it attached to.
4042  *
4043  * Return codes
4044  *      0 - successful
4045  *      other values - error
4046  **/
4047 static int
4048 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
4049 {
4050         struct lpfc_sli *psli;
4051
4052         /*
4053          * Initialize timers used by driver
4054          */
4055
4056         /* Heartbeat timer */
4057         init_timer(&phba->hb_tmofunc);
4058         phba->hb_tmofunc.function = lpfc_hb_timeout;
4059         phba->hb_tmofunc.data = (unsigned long)phba;
4060
4061         psli = &phba->sli;
4062         /* MBOX heartbeat timer */
4063         init_timer(&psli->mbox_tmo);
4064         psli->mbox_tmo.function = lpfc_mbox_timeout;
4065         psli->mbox_tmo.data = (unsigned long) phba;
4066         /* FCP polling mode timer */
4067         init_timer(&phba->fcp_poll_timer);
4068         phba->fcp_poll_timer.function = lpfc_poll_timeout;
4069         phba->fcp_poll_timer.data = (unsigned long) phba;
4070         /* Fabric block timer */
4071         init_timer(&phba->fabric_block_timer);
4072         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4073         phba->fabric_block_timer.data = (unsigned long) phba;
4074         /* EA polling mode timer */
4075         init_timer(&phba->eratt_poll);
4076         phba->eratt_poll.function = lpfc_poll_eratt;
4077         phba->eratt_poll.data = (unsigned long) phba;
4078
4079         /* Host attention work mask setup */
4080         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
4081         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
4082
4083         /* Get all the module params for configuring this host */
4084         lpfc_get_cfgparam(phba);
4085         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
4086                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
4087                 /* check for menlo minimum sg count */
4088                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
4089                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
4090         }
4091
4092         /*
4093          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4094          * used to create the sg_dma_buf_pool must be dynamically calculated.
4095          * 2 segments are added since the IOCB needs a command and response bde.
4096          */
4097         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
4098                 sizeof(struct fcp_rsp) +
4099                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
4100
4101         if (phba->cfg_enable_bg) {
4102                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
4103                 phba->cfg_sg_dma_buf_size +=
4104                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
4105         }
4106
4107         /* Also reinitialize the host templates with new values. */
4108         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4109         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
4110
4111         phba->max_vpi = LPFC_MAX_VPI;
4112         /* This will be set to correct value after config_port mbox */
4113         phba->max_vports = 0;
4114
4115         /*
4116          * Initialize the SLI Layer to run with lpfc HBAs.
4117          */
4118         lpfc_sli_setup(phba);
4119         lpfc_sli_queue_setup(phba);
4120
4121         /* Allocate device driver memory */
4122         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
4123                 return -ENOMEM;
4124
4125         return 0;
4126 }
4127
4128 /**
4129  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
4130  * @phba: pointer to lpfc hba data structure.
4131  *
4132  * This routine is invoked to unset the driver internal resources set up
4133  * specific for supporting the SLI-3 HBA device it attached to.
4134  **/
4135 static void
4136 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
4137 {
4138         /* Free device driver memory allocated */
4139         lpfc_mem_free_all(phba);
4140
4141         return;
4142 }
4143
4144 /**
4145  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
4146  * @phba: pointer to lpfc hba data structure.
4147  *
4148  * This routine is invoked to set up the driver internal resources specific to
4149  * support the SLI-4 HBA device it attached to.
4150  *
4151  * Return codes
4152  *      0 - successful
4153  *      other values - error
4154  **/
4155 static int
4156 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
4157 {
4158         struct lpfc_sli *psli;
4159         LPFC_MBOXQ_t *mboxq;
4160         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
4161         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
4162         struct lpfc_mqe *mqe;
4163         int longs, sli_family;
4164
4165         /* Before proceed, wait for POST done and device ready */
4166         rc = lpfc_sli4_post_status_check(phba);
4167         if (rc)
4168                 return -ENODEV;
4169
4170         /*
4171          * Initialize timers used by driver
4172          */
4173
4174         /* Heartbeat timer */
4175         init_timer(&phba->hb_tmofunc);
4176         phba->hb_tmofunc.function = lpfc_hb_timeout;
4177         phba->hb_tmofunc.data = (unsigned long)phba;
4178         init_timer(&phba->rrq_tmr);
4179         phba->rrq_tmr.function = lpfc_rrq_timeout;
4180         phba->rrq_tmr.data = (unsigned long)phba;
4181
4182         psli = &phba->sli;
4183         /* MBOX heartbeat timer */
4184         init_timer(&psli->mbox_tmo);
4185         psli->mbox_tmo.function = lpfc_mbox_timeout;
4186         psli->mbox_tmo.data = (unsigned long) phba;
4187         /* Fabric block timer */
4188         init_timer(&phba->fabric_block_timer);
4189         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
4190         phba->fabric_block_timer.data = (unsigned long) phba;
4191         /* EA polling mode timer */
4192         init_timer(&phba->eratt_poll);
4193         phba->eratt_poll.function = lpfc_poll_eratt;
4194         phba->eratt_poll.data = (unsigned long) phba;
4195         /* FCF rediscover timer */
4196         init_timer(&phba->fcf.redisc_wait);
4197         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
4198         phba->fcf.redisc_wait.data = (unsigned long)phba;
4199
4200         /*
4201          * We need to do a READ_CONFIG mailbox command here before
4202          * calling lpfc_get_cfgparam. For VFs this will report the
4203          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
4204          * All of the resources allocated
4205          * for this Port are tied to these values.
4206          */
4207         /* Get all the module params for configuring this host */
4208         lpfc_get_cfgparam(phba);
4209         phba->max_vpi = LPFC_MAX_VPI;
4210         /* This will be set to correct value after the read_config mbox */
4211         phba->max_vports = 0;
4212
4213         /* Program the default value of vlan_id and fc_map */
4214         phba->valid_vlan = 0;
4215         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4216         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4217         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4218
4219         /*
4220          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4221          * used to create the sg_dma_buf_pool must be dynamically calculated.
4222          * 2 segments are added since the IOCB needs a command and response bde.
4223          * To insure that the scsi sgl does not cross a 4k page boundary only
4224          * sgl sizes of must be a power of 2.
4225          */
4226         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4227                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4228
4229         sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf);
4230         max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4231         switch (sli_family) {
4232         case LPFC_SLI_INTF_FAMILY_BE2:
4233         case LPFC_SLI_INTF_FAMILY_BE3:
4234                 /* There is a single hint for BE - 2 pages per BPL. */
4235                 if (bf_get(lpfc_sli_intf_sli_hint1, &phba->sli4_hba.sli_intf) ==
4236                     LPFC_SLI_INTF_SLI_HINT1_1)
4237                         max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4238                 break;
4239         case LPFC_SLI_INTF_FAMILY_LNCR_A0:
4240         case LPFC_SLI_INTF_FAMILY_LNCR_B0:
4241         default:
4242                 break;
4243         }
4244         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4245              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4246              dma_buf_size = dma_buf_size << 1)
4247                 ;
4248         if (dma_buf_size == max_buf_size)
4249                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4250                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4251                         (2 * sizeof(struct sli4_sge))) /
4252                                 sizeof(struct sli4_sge);
4253         phba->cfg_sg_dma_buf_size = dma_buf_size;
4254
4255         /* Initialize buffer queue management fields */
4256         hbq_count = lpfc_sli_hbq_count();
4257         for (i = 0; i < hbq_count; ++i)
4258                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4259         INIT_LIST_HEAD(&phba->rb_pend_list);
4260         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4261         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4262
4263         /*
4264          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4265          */
4266         /* Initialize the Abort scsi buffer list used by driver */
4267         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4268         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4269         /* This abort list used by worker thread */
4270         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4271
4272         /*
4273          * Initialize dirver internal slow-path work queues
4274          */
4275
4276         /* Driver internel slow-path CQ Event pool */
4277         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4278         /* Response IOCB work queue list */
4279         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4280         /* Asynchronous event CQ Event work queue list */
4281         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4282         /* Fast-path XRI aborted CQ Event work queue list */
4283         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4284         /* Slow-path XRI aborted CQ Event work queue list */
4285         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4286         /* Receive queue CQ Event work queue list */
4287         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4288
4289         /* Initialize the driver internal SLI layer lists. */
4290         lpfc_sli_setup(phba);
4291         lpfc_sli_queue_setup(phba);
4292
4293         /* Allocate device driver memory */
4294         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4295         if (rc)
4296                 return -ENOMEM;
4297
4298         /* IF Type 2 ports get initialized now. */
4299         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4300             LPFC_SLI_INTF_IF_TYPE_2) {
4301                 rc = lpfc_pci_function_reset(phba);
4302                 if (unlikely(rc))
4303                         return -ENODEV;
4304         }
4305
4306         /* Create the bootstrap mailbox command */
4307         rc = lpfc_create_bootstrap_mbox(phba);
4308         if (unlikely(rc))
4309                 goto out_free_mem;
4310
4311         /* Set up the host's endian order with the device. */
4312         rc = lpfc_setup_endian_order(phba);
4313         if (unlikely(rc))
4314                 goto out_free_bsmbx;
4315
4316         /* Set up the hba's configuration parameters. */
4317         rc = lpfc_sli4_read_config(phba);
4318         if (unlikely(rc))
4319                 goto out_free_bsmbx;
4320
4321         /* IF Type 0 ports get initialized now. */
4322         if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
4323             LPFC_SLI_INTF_IF_TYPE_0) {
4324                 rc = lpfc_pci_function_reset(phba);
4325                 if (unlikely(rc))
4326                         goto out_free_bsmbx;
4327         }
4328
4329         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4330                                                        GFP_KERNEL);
4331         if (!mboxq) {
4332                 rc = -ENOMEM;
4333                 goto out_free_bsmbx;
4334         }
4335
4336         /* Get the Supported Pages if PORT_CAPABILITIES is supported by port. */
4337         lpfc_supported_pages(mboxq);
4338         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4339         if (!rc) {
4340                 mqe = &mboxq->u.mqe;
4341                 memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4342                        LPFC_MAX_SUPPORTED_PAGES);
4343                 for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4344                         switch (pn_page[i]) {
4345                         case LPFC_SLI4_PARAMETERS:
4346                                 phba->sli4_hba.pc_sli4_params.supported = 1;
4347                                 break;
4348                         default:
4349                                 break;
4350                         }
4351                 }
4352                 /* Read the port's SLI4 Parameters capabilities if supported. */
4353                 if (phba->sli4_hba.pc_sli4_params.supported)
4354                         rc = lpfc_pc_sli4_params_get(phba, mboxq);
4355                 if (rc) {
4356                         mempool_free(mboxq, phba->mbox_mem_pool);
4357                         rc = -EIO;
4358                         goto out_free_bsmbx;
4359                 }
4360         }
4361         /*
4362          * Get sli4 parameters that override parameters from Port capabilities.
4363          * If this call fails it is not a critical error so continue loading.
4364          */
4365         lpfc_get_sli4_parameters(phba, mboxq);
4366         mempool_free(mboxq, phba->mbox_mem_pool);
4367         /* Create all the SLI4 queues */
4368         rc = lpfc_sli4_queue_create(phba);
4369         if (rc)
4370                 goto out_free_bsmbx;
4371
4372         /* Create driver internal CQE event pool */
4373         rc = lpfc_sli4_cq_event_pool_create(phba);
4374         if (rc)
4375                 goto out_destroy_queue;
4376
4377         /* Initialize and populate the iocb list per host */
4378         rc = lpfc_init_sgl_list(phba);
4379         if (rc) {
4380                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4381                                 "1400 Failed to initialize sgl list.\n");
4382                 goto out_destroy_cq_event_pool;
4383         }
4384         rc = lpfc_init_active_sgl_array(phba);
4385         if (rc) {
4386                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4387                                 "1430 Failed to initialize sgl list.\n");
4388                 goto out_free_sgl_list;
4389         }
4390
4391         rc = lpfc_sli4_init_rpi_hdrs(phba);
4392         if (rc) {
4393                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4394                                 "1432 Failed to initialize rpi headers.\n");
4395                 goto out_free_active_sgl;
4396         }
4397
4398         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4399         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4400         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4401                                          GFP_KERNEL);
4402         if (!phba->fcf.fcf_rr_bmask) {
4403                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4404                                 "2759 Failed allocate memory for FCF round "
4405                                 "robin failover bmask\n");
4406                 rc = -ENOMEM;
4407                 goto out_remove_rpi_hdrs;
4408         }
4409
4410         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4411                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4412         if (!phba->sli4_hba.fcp_eq_hdl) {
4413                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4414                                 "2572 Failed allocate memory for fast-path "
4415                                 "per-EQ handle array\n");
4416                 rc = -ENOMEM;
4417                 goto out_free_fcf_rr_bmask;
4418         }
4419
4420         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4421                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4422         if (!phba->sli4_hba.msix_entries) {
4423                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4424                                 "2573 Failed allocate memory for msi-x "
4425                                 "interrupt vector entries\n");
4426                 rc = -ENOMEM;
4427                 goto out_free_fcp_eq_hdl;
4428         }
4429
4430         return rc;
4431
4432 out_free_fcp_eq_hdl:
4433         kfree(phba->sli4_hba.fcp_eq_hdl);
4434 out_free_fcf_rr_bmask:
4435         kfree(phba->fcf.fcf_rr_bmask);
4436 out_remove_rpi_hdrs:
4437         lpfc_sli4_remove_rpi_hdrs(phba);
4438 out_free_active_sgl:
4439         lpfc_free_active_sgl(phba);
4440 out_free_sgl_list:
4441         lpfc_free_sgl_list(phba);
4442 out_destroy_cq_event_pool:
4443         lpfc_sli4_cq_event_pool_destroy(phba);
4444 out_destroy_queue:
4445         lpfc_sli4_queue_destroy(phba);
4446 out_free_bsmbx:
4447         lpfc_destroy_bootstrap_mbox(phba);
4448 out_free_mem:
4449         lpfc_mem_free(phba);
4450         return rc;
4451 }
4452
4453 /**
4454  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4455  * @phba: pointer to lpfc hba data structure.
4456  *
4457  * This routine is invoked to unset the driver internal resources set up
4458  * specific for supporting the SLI-4 HBA device it attached to.
4459  **/
4460 static void
4461 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4462 {
4463         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4464
4465         /* Free memory allocated for msi-x interrupt vector entries */
4466         kfree(phba->sli4_hba.msix_entries);
4467
4468         /* Free memory allocated for fast-path work queue handles */
4469         kfree(phba->sli4_hba.fcp_eq_hdl);
4470
4471         /* Free the allocated rpi headers. */
4472         lpfc_sli4_remove_rpi_hdrs(phba);
4473         lpfc_sli4_remove_rpis(phba);
4474
4475         /* Free eligible FCF index bmask */
4476         kfree(phba->fcf.fcf_rr_bmask);
4477
4478         /* Free the ELS sgl list */
4479         lpfc_free_active_sgl(phba);
4480         lpfc_free_sgl_list(phba);
4481
4482         /* Free the SCSI sgl management array */
4483         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4484
4485         /* Free the SLI4 queues */
4486         lpfc_sli4_queue_destroy(phba);
4487
4488         /* Free the completion queue EQ event pool */
4489         lpfc_sli4_cq_event_release_all(phba);
4490         lpfc_sli4_cq_event_pool_destroy(phba);
4491
4492         /* Free the bsmbx region. */
4493         lpfc_destroy_bootstrap_mbox(phba);
4494
4495         /* Free the SLI Layer memory with SLI4 HBAs */
4496         lpfc_mem_free_all(phba);
4497
4498         /* Free the current connect table */
4499         list_for_each_entry_safe(conn_entry, next_conn_entry,
4500                 &phba->fcf_conn_rec_list, list) {
4501                 list_del_init(&conn_entry->list);
4502                 kfree(conn_entry);
4503         }
4504
4505         return;
4506 }
4507
4508 /**
4509  * lpfc_init_api_table_setup - Set up init api function jump table
4510  * @phba: The hba struct for which this call is being executed.
4511  * @dev_grp: The HBA PCI-Device group number.
4512  *
4513  * This routine sets up the device INIT interface API function jump table
4514  * in @phba struct.
4515  *
4516  * Returns: 0 - success, -ENODEV - failure.
4517  **/
4518 int
4519 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4520 {
4521         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4522         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4523         phba->lpfc_selective_reset = lpfc_selective_reset;
4524         switch (dev_grp) {
4525         case LPFC_PCI_DEV_LP:
4526                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4527                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4528                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4529                 break;
4530         case LPFC_PCI_DEV_OC:
4531                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4532                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4533                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4534                 break;
4535         default:
4536                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4537                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4538                                 dev_grp);
4539                 return -ENODEV;
4540                 break;
4541         }
4542         return 0;
4543 }
4544
4545 /**
4546  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4547  * @phba: pointer to lpfc hba data structure.
4548  *
4549  * This routine is invoked to set up the driver internal resources before the
4550  * device specific resource setup to support the HBA device it attached to.
4551  *
4552  * Return codes
4553  *      0 - successful
4554  *      other values - error
4555  **/
4556 static int
4557 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4558 {
4559         /*
4560          * Driver resources common to all SLI revisions
4561          */
4562         atomic_set(&phba->fast_event_count, 0);
4563         spin_lock_init(&phba->hbalock);
4564
4565         /* Initialize ndlp management spinlock */
4566         spin_lock_init(&phba->ndlp_lock);
4567
4568         INIT_LIST_HEAD(&phba->port_list);
4569         INIT_LIST_HEAD(&phba->work_list);
4570         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4571
4572         /* Initialize the wait queue head for the kernel thread */
4573         init_waitqueue_head(&phba->work_waitq);
4574
4575         /* Initialize the scsi buffer list used by driver for scsi IO */
4576         spin_lock_init(&phba->scsi_buf_list_lock);
4577         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4578
4579         /* Initialize the fabric iocb list */
4580         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4581
4582         /* Initialize list to save ELS buffers */
4583         INIT_LIST_HEAD(&phba->elsbuf);
4584
4585         /* Initialize FCF connection rec list */
4586         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4587
4588         return 0;
4589 }
4590
4591 /**
4592  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4593  * @phba: pointer to lpfc hba data structure.
4594  *
4595  * This routine is invoked to set up the driver internal resources after the
4596  * device specific resource setup to support the HBA device it attached to.
4597  *
4598  * Return codes
4599  *      0 - successful
4600  *      other values - error
4601  **/
4602 static int
4603 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4604 {
4605         int error;
4606
4607         /* Startup the kernel thread for this host adapter. */
4608         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4609                                           "lpfc_worker_%d", phba->brd_no);
4610         if (IS_ERR(phba->worker_thread)) {
4611                 error = PTR_ERR(phba->worker_thread);
4612                 return error;
4613         }
4614
4615         return 0;
4616 }
4617
4618 /**
4619  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4620  * @phba: pointer to lpfc hba data structure.
4621  *
4622  * This routine is invoked to unset the driver internal resources set up after
4623  * the device specific resource setup for supporting the HBA device it
4624  * attached to.
4625  **/
4626 static void
4627 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4628 {
4629         /* Stop kernel worker thread */
4630         kthread_stop(phba->worker_thread);
4631 }
4632
4633 /**
4634  * lpfc_free_iocb_list - Free iocb list.
4635  * @phba: pointer to lpfc hba data structure.
4636  *
4637  * This routine is invoked to free the driver's IOCB list and memory.
4638  **/
4639 static void
4640 lpfc_free_iocb_list(struct lpfc_hba *phba)
4641 {
4642         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4643
4644         spin_lock_irq(&phba->hbalock);
4645         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4646                                  &phba->lpfc_iocb_list, list) {
4647                 list_del(&iocbq_entry->list);
4648                 kfree(iocbq_entry);
4649                 phba->total_iocbq_bufs--;
4650         }
4651         spin_unlock_irq(&phba->hbalock);
4652
4653         return;
4654 }
4655
4656 /**
4657  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4658  * @phba: pointer to lpfc hba data structure.
4659  *
4660  * This routine is invoked to allocate and initizlize the driver's IOCB
4661  * list and set up the IOCB tag array accordingly.
4662  *
4663  * Return codes
4664  *      0 - successful
4665  *      other values - error
4666  **/
4667 static int
4668 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4669 {
4670         struct lpfc_iocbq *iocbq_entry = NULL;
4671         uint16_t iotag;
4672         int i;
4673
4674         /* Initialize and populate the iocb list per host.  */
4675         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4676         for (i = 0; i < iocb_count; i++) {
4677                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4678                 if (iocbq_entry == NULL) {
4679                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4680                                 "expected %d count. Unloading driver.\n",
4681                                 __func__, i, LPFC_IOCB_LIST_CNT);
4682                         goto out_free_iocbq;
4683                 }
4684
4685                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4686                 if (iotag == 0) {
4687                         kfree(iocbq_entry);
4688                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4689                                 "Unloading driver.\n", __func__);
4690                         goto out_free_iocbq;
4691                 }
4692                 iocbq_entry->sli4_xritag = NO_XRI;
4693
4694                 spin_lock_irq(&phba->hbalock);
4695                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4696                 phba->total_iocbq_bufs++;
4697                 spin_unlock_irq(&phba->hbalock);
4698         }
4699
4700         return 0;
4701
4702 out_free_iocbq:
4703         lpfc_free_iocb_list(phba);
4704
4705         return -ENOMEM;
4706 }
4707
4708 /**
4709  * lpfc_free_sgl_list - Free sgl list.
4710  * @phba: pointer to lpfc hba data structure.
4711  *
4712  * This routine is invoked to free the driver's sgl list and memory.
4713  **/
4714 static void
4715 lpfc_free_sgl_list(struct lpfc_hba *phba)
4716 {
4717         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4718         LIST_HEAD(sglq_list);
4719
4720         spin_lock_irq(&phba->hbalock);
4721         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4722         spin_unlock_irq(&phba->hbalock);
4723
4724         list_for_each_entry_safe(sglq_entry, sglq_next,
4725                                  &sglq_list, list) {
4726                 list_del(&sglq_entry->list);
4727                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4728                 kfree(sglq_entry);
4729                 phba->sli4_hba.total_sglq_bufs--;
4730         }
4731         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4732 }
4733
4734 /**
4735  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4736  * @phba: pointer to lpfc hba data structure.
4737  *
4738  * This routine is invoked to allocate the driver's active sgl memory.
4739  * This array will hold the sglq_entry's for active IOs.
4740  **/
4741 static int
4742 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4743 {
4744         int size;
4745         size = sizeof(struct lpfc_sglq *);
4746         size *= phba->sli4_hba.max_cfg_param.max_xri;
4747
4748         phba->sli4_hba.lpfc_sglq_active_list =
4749                 kzalloc(size, GFP_KERNEL);
4750         if (!phba->sli4_hba.lpfc_sglq_active_list)
4751                 return -ENOMEM;
4752         return 0;
4753 }
4754
4755 /**
4756  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4757  * @phba: pointer to lpfc hba data structure.
4758  *
4759  * This routine is invoked to walk through the array of active sglq entries
4760  * and free all of the resources.
4761  * This is just a place holder for now.
4762  **/
4763 static void
4764 lpfc_free_active_sgl(struct lpfc_hba *phba)
4765 {
4766         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4767 }
4768
4769 /**
4770  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4771  * @phba: pointer to lpfc hba data structure.
4772  *
4773  * This routine is invoked to allocate and initizlize the driver's sgl
4774  * list and set up the sgl xritag tag array accordingly.
4775  *
4776  * Return codes
4777  *      0 - successful
4778  *      other values - error
4779  **/
4780 static int
4781 lpfc_init_sgl_list(struct lpfc_hba *phba)
4782 {
4783         struct lpfc_sglq *sglq_entry = NULL;
4784         int i;
4785         int els_xri_cnt;
4786
4787         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4788         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4789                                 "2400 lpfc_init_sgl_list els %d.\n",
4790                                 els_xri_cnt);
4791         /* Initialize and populate the sglq list per host/VF. */
4792         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4793         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4794
4795         /* Sanity check on XRI management */
4796         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4797                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4798                                 "2562 No room left for SCSI XRI allocation: "
4799                                 "max_xri=%d, els_xri=%d\n",
4800                                 phba->sli4_hba.max_cfg_param.max_xri,
4801                                 els_xri_cnt);
4802                 return -ENOMEM;
4803         }
4804
4805         /* Allocate memory for the ELS XRI management array */
4806         phba->sli4_hba.lpfc_els_sgl_array =
4807                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4808                         GFP_KERNEL);
4809
4810         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4811                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4812                                 "2401 Failed to allocate memory for ELS "
4813                                 "XRI management array of size %d.\n",
4814                                 els_xri_cnt);
4815                 return -ENOMEM;
4816         }
4817
4818         /* Keep the SCSI XRI into the XRI management array */
4819         phba->sli4_hba.scsi_xri_max =
4820                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4821         phba->sli4_hba.scsi_xri_cnt = 0;
4822
4823         phba->sli4_hba.lpfc_scsi_psb_array =
4824                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4825                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4826
4827         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4828                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4829                                 "2563 Failed to allocate memory for SCSI "
4830                                 "XRI management array of size %d.\n",
4831                                 phba->sli4_hba.scsi_xri_max);
4832                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4833                 return -ENOMEM;
4834         }
4835
4836         for (i = 0; i < els_xri_cnt; i++) {
4837                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4838                 if (sglq_entry == NULL) {
4839                         printk(KERN_ERR "%s: only allocated %d sgls of "
4840                                 "expected %d count. Unloading driver.\n",
4841                                 __func__, i, els_xri_cnt);
4842                         goto out_free_mem;
4843                 }
4844
4845                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4846                 if (sglq_entry->sli4_xritag == NO_XRI) {
4847                         kfree(sglq_entry);
4848                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4849                                 "Unloading driver.\n", __func__);
4850                         goto out_free_mem;
4851                 }
4852                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4853                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4854                 if (sglq_entry->virt == NULL) {
4855                         kfree(sglq_entry);
4856                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4857                                 "Unloading driver.\n", __func__);
4858                         goto out_free_mem;
4859                 }
4860                 sglq_entry->sgl = sglq_entry->virt;
4861                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4862
4863                 /* The list order is used by later block SGL registraton */
4864                 spin_lock_irq(&phba->hbalock);
4865                 sglq_entry->state = SGL_FREED;
4866                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4867                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4868                 phba->sli4_hba.total_sglq_bufs++;
4869                 spin_unlock_irq(&phba->hbalock);
4870         }
4871         return 0;
4872
4873 out_free_mem:
4874         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4875         lpfc_free_sgl_list(phba);
4876         return -ENOMEM;
4877 }
4878
4879 /**
4880  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4881  * @phba: pointer to lpfc hba data structure.
4882  *
4883  * This routine is invoked to post rpi header templates to the
4884  * HBA consistent with the SLI-4 interface spec.  This routine
4885  * posts a PAGE_SIZE memory region to the port to hold up to
4886  * PAGE_SIZE modulo 64 rpi context headers.
4887  * No locks are held here because this is an initialization routine
4888  * called only from probe or lpfc_online when interrupts are not
4889  * enabled and the driver is reinitializing the device.
4890  *
4891  * Return codes
4892  *      0 - successful
4893  *      -ENOMEM - No available memory
4894  *      -EIO - The mailbox failed to complete successfully.
4895  **/
4896 int
4897 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4898 {
4899         int rc = 0;
4900         int longs;
4901         uint16_t rpi_count;
4902         struct lpfc_rpi_hdr *rpi_hdr;
4903
4904         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4905
4906         /*
4907          * Provision an rpi bitmask range for discovery. The total count
4908          * is the difference between max and base + 1.
4909          */
4910         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4911                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4912
4913         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4914         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4915                                            GFP_KERNEL);
4916         if (!phba->sli4_hba.rpi_bmask)
4917                 return -ENOMEM;
4918
4919         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4920         if (!rpi_hdr) {
4921                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4922                                 "0391 Error during rpi post operation\n");
4923                 lpfc_sli4_remove_rpis(phba);
4924                 rc = -ENODEV;
4925         }
4926
4927         return rc;
4928 }
4929
4930 /**
4931  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4932  * @phba: pointer to lpfc hba data structure.
4933  *
4934  * This routine is invoked to allocate a single 4KB memory region to
4935  * support rpis and stores them in the phba.  This single region
4936  * provides support for up to 64 rpis.  The region is used globally
4937  * by the device.
4938  *
4939  * Returns:
4940  *   A valid rpi hdr on success.
4941  *   A NULL pointer on any failure.
4942  **/
4943 struct lpfc_rpi_hdr *
4944 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4945 {
4946         uint16_t rpi_limit, curr_rpi_range;
4947         struct lpfc_dmabuf *dmabuf;
4948         struct lpfc_rpi_hdr *rpi_hdr;
4949         uint32_t rpi_count;
4950
4951         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4952                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4953
4954         spin_lock_irq(&phba->hbalock);
4955         curr_rpi_range = phba->sli4_hba.next_rpi;
4956         spin_unlock_irq(&phba->hbalock);
4957
4958         /*
4959          * The port has a limited number of rpis. The increment here
4960          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4961          * and to allow the full max_rpi range per port.
4962          */
4963         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4964                 rpi_count = rpi_limit - curr_rpi_range;
4965         else
4966                 rpi_count = LPFC_RPI_HDR_COUNT;
4967
4968         /*
4969          * First allocate the protocol header region for the port.  The
4970          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4971          */
4972         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4973         if (!dmabuf)
4974                 return NULL;
4975
4976         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4977                                           LPFC_HDR_TEMPLATE_SIZE,
4978                                           &dmabuf->phys,
4979                                           GFP_KERNEL);
4980         if (!dmabuf->virt) {
4981                 rpi_hdr = NULL;
4982                 goto err_free_dmabuf;
4983         }
4984
4985         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4986         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4987                 rpi_hdr = NULL;
4988                 goto err_free_coherent;
4989         }
4990
4991         /* Save the rpi header data for cleanup later. */
4992         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4993         if (!rpi_hdr)
4994                 goto err_free_coherent;
4995
4996         rpi_hdr->dmabuf = dmabuf;
4997         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4998         rpi_hdr->page_count = 1;
4999         spin_lock_irq(&phba->hbalock);
5000         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
5001         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
5002
5003         /*
5004          * The next_rpi stores the next module-64 rpi value to post
5005          * in any subsequent rpi memory region postings.
5006          */
5007         phba->sli4_hba.next_rpi += rpi_count;
5008         spin_unlock_irq(&phba->hbalock);
5009         return rpi_hdr;
5010
5011  err_free_coherent:
5012         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
5013                           dmabuf->virt, dmabuf->phys);
5014  err_free_dmabuf:
5015         kfree(dmabuf);
5016         return NULL;
5017 }
5018
5019 /**
5020  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
5021  * @phba: pointer to lpfc hba data structure.
5022  *
5023  * This routine is invoked to remove all memory resources allocated
5024  * to support rpis. This routine presumes the caller has released all
5025  * rpis consumed by fabric or port logins and is prepared to have
5026  * the header pages removed.
5027  **/
5028 void
5029 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
5030 {
5031         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
5032
5033         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
5034                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
5035                 list_del(&rpi_hdr->list);
5036                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
5037                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
5038                 kfree(rpi_hdr->dmabuf);
5039                 kfree(rpi_hdr);
5040         }
5041         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5042 }
5043
5044 /**
5045  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
5046  * @pdev: pointer to pci device data structure.
5047  *
5048  * This routine is invoked to allocate the driver hba data structure for an
5049  * HBA device. If the allocation is successful, the phba reference to the
5050  * PCI device data structure is set.
5051  *
5052  * Return codes
5053  *      pointer to @phba - successful
5054  *      NULL - error
5055  **/
5056 static struct lpfc_hba *
5057 lpfc_hba_alloc(struct pci_dev *pdev)
5058 {
5059         struct lpfc_hba *phba;
5060
5061         /* Allocate memory for HBA structure */
5062         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
5063         if (!phba) {
5064                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
5065                 return NULL;
5066         }
5067
5068         /* Set reference to PCI device in HBA structure */
5069         phba->pcidev = pdev;
5070
5071         /* Assign an unused board number */
5072         phba->brd_no = lpfc_get_instance();
5073         if (phba->brd_no < 0) {
5074                 kfree(phba);
5075                 return NULL;
5076         }
5077
5078         spin_lock_init(&phba->ct_ev_lock);
5079         INIT_LIST_HEAD(&phba->ct_ev_waiters);
5080
5081         return phba;
5082 }
5083
5084 /**
5085  * lpfc_hba_free - Free driver hba data structure with a device.
5086  * @phba: pointer to lpfc hba data structure.
5087  *
5088  * This routine is invoked to free the driver hba data structure with an
5089  * HBA device.
5090  **/
5091 static void
5092 lpfc_hba_free(struct lpfc_hba *phba)
5093 {
5094         /* Release the driver assigned board number */
5095         idr_remove(&lpfc_hba_index, phba->brd_no);
5096
5097         kfree(phba);
5098         return;
5099 }
5100
5101 /**
5102  * lpfc_create_shost - Create hba physical port with associated scsi host.
5103  * @phba: pointer to lpfc hba data structure.
5104  *
5105  * This routine is invoked to create HBA physical port and associate a SCSI
5106  * host with it.
5107  *
5108  * Return codes
5109  *      0 - successful
5110  *      other values - error
5111  **/
5112 static int
5113 lpfc_create_shost(struct lpfc_hba *phba)
5114 {
5115         struct lpfc_vport *vport;
5116         struct Scsi_Host  *shost;
5117
5118         /* Initialize HBA FC structure */
5119         phba->fc_edtov = FF_DEF_EDTOV;
5120         phba->fc_ratov = FF_DEF_RATOV;
5121         phba->fc_altov = FF_DEF_ALTOV;
5122         phba->fc_arbtov = FF_DEF_ARBTOV;
5123
5124         atomic_set(&phba->sdev_cnt, 0);
5125         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
5126         if (!vport)
5127                 return -ENODEV;
5128
5129         shost = lpfc_shost_from_vport(vport);
5130         phba->pport = vport;
5131         lpfc_debugfs_initialize(vport);
5132         /* Put reference to SCSI host to driver's device private data */
5133         pci_set_drvdata(phba->pcidev, shost);
5134
5135         return 0;
5136 }
5137
5138 /**
5139  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
5140  * @phba: pointer to lpfc hba data structure.
5141  *
5142  * This routine is invoked to destroy HBA physical port and the associated
5143  * SCSI host.
5144  **/
5145 static void
5146 lpfc_destroy_shost(struct lpfc_hba *phba)
5147 {
5148         struct lpfc_vport *vport = phba->pport;
5149
5150         /* Destroy physical port that associated with the SCSI host */
5151         destroy_port(vport);
5152
5153         return;
5154 }
5155
5156 /**
5157  * lpfc_setup_bg - Setup Block guard structures and debug areas.
5158  * @phba: pointer to lpfc hba data structure.
5159  * @shost: the shost to be used to detect Block guard settings.
5160  *
5161  * This routine sets up the local Block guard protocol settings for @shost.
5162  * This routine also allocates memory for debugging bg buffers.
5163  **/
5164 static void
5165 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
5166 {
5167         int pagecnt = 10;
5168         if (lpfc_prot_mask && lpfc_prot_guard) {
5169                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5170                                 "1478 Registering BlockGuard with the "
5171                                 "SCSI layer\n");
5172                 scsi_host_set_prot(shost, lpfc_prot_mask);
5173                 scsi_host_set_guard(shost, lpfc_prot_guard);
5174         }
5175         if (!_dump_buf_data) {
5176                 while (pagecnt) {
5177                         spin_lock_init(&_dump_buf_lock);
5178                         _dump_buf_data =
5179                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5180                         if (_dump_buf_data) {
5181                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5182                                         "9043 BLKGRD: allocated %d pages for "
5183                                        "_dump_buf_data at 0x%p\n",
5184                                        (1 << pagecnt), _dump_buf_data);
5185                                 _dump_buf_data_order = pagecnt;
5186                                 memset(_dump_buf_data, 0,
5187                                        ((1 << PAGE_SHIFT) << pagecnt));
5188                                 break;
5189                         } else
5190                                 --pagecnt;
5191                 }
5192                 if (!_dump_buf_data_order)
5193                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5194                                 "9044 BLKGRD: ERROR unable to allocate "
5195                                "memory for hexdump\n");
5196         } else
5197                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5198                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
5199                        "\n", _dump_buf_data);
5200         if (!_dump_buf_dif) {
5201                 while (pagecnt) {
5202                         _dump_buf_dif =
5203                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
5204                         if (_dump_buf_dif) {
5205                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5206                                         "9046 BLKGRD: allocated %d pages for "
5207                                        "_dump_buf_dif at 0x%p\n",
5208                                        (1 << pagecnt), _dump_buf_dif);
5209                                 _dump_buf_dif_order = pagecnt;
5210                                 memset(_dump_buf_dif, 0,
5211                                        ((1 << PAGE_SHIFT) << pagecnt));
5212                                 break;
5213                         } else
5214                                 --pagecnt;
5215                 }
5216                 if (!_dump_buf_dif_order)
5217                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5218                         "9047 BLKGRD: ERROR unable to allocate "
5219                                "memory for hexdump\n");
5220         } else
5221                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
5222                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
5223                        _dump_buf_dif);
5224 }
5225
5226 /**
5227  * lpfc_post_init_setup - Perform necessary device post initialization setup.
5228  * @phba: pointer to lpfc hba data structure.
5229  *
5230  * This routine is invoked to perform all the necessary post initialization
5231  * setup for the device.
5232  **/
5233 static void
5234 lpfc_post_init_setup(struct lpfc_hba *phba)
5235 {
5236         struct Scsi_Host  *shost;
5237         struct lpfc_adapter_event_header adapter_event;
5238
5239         /* Get the default values for Model Name and Description */
5240         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5241
5242         /*
5243          * hba setup may have changed the hba_queue_depth so we need to
5244          * adjust the value of can_queue.
5245          */
5246         shost = pci_get_drvdata(phba->pcidev);
5247         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5248         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5249                 lpfc_setup_bg(phba, shost);
5250
5251         lpfc_host_attrib_init(shost);
5252
5253         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5254                 spin_lock_irq(shost->host_lock);
5255                 lpfc_poll_start_timer(phba);
5256                 spin_unlock_irq(shost->host_lock);
5257         }
5258
5259         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5260                         "0428 Perform SCSI scan\n");
5261         /* Send board arrival event to upper layer */
5262         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5263         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5264         fc_host_post_vendor_event(shost, fc_get_event_number(),
5265                                   sizeof(adapter_event),
5266                                   (char *) &adapter_event,
5267                                   LPFC_NL_VENDOR_ID);
5268         return;
5269 }
5270
5271 /**
5272  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5273  * @phba: pointer to lpfc hba data structure.
5274  *
5275  * This routine is invoked to set up the PCI device memory space for device
5276  * with SLI-3 interface spec.
5277  *
5278  * Return codes
5279  *      0 - successful
5280  *      other values - error
5281  **/
5282 static int
5283 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5284 {
5285         struct pci_dev *pdev;
5286         unsigned long bar0map_len, bar2map_len;
5287         int i, hbq_count;
5288         void *ptr;
5289         int error = -ENODEV;
5290
5291         /* Obtain PCI device reference */
5292         if (!phba->pcidev)
5293                 return error;
5294         else
5295                 pdev = phba->pcidev;
5296
5297         /* Set the device DMA mask size */
5298         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5299          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5300                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5301                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5302                         return error;
5303                 }
5304         }
5305
5306         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5307          * required by each mapping.
5308          */
5309         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5310         bar0map_len = pci_resource_len(pdev, 0);
5311
5312         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5313         bar2map_len = pci_resource_len(pdev, 2);
5314
5315         /* Map HBA SLIM to a kernel virtual address. */
5316         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5317         if (!phba->slim_memmap_p) {
5318                 dev_printk(KERN_ERR, &pdev->dev,
5319                            "ioremap failed for SLIM memory.\n");
5320                 goto out;
5321         }
5322
5323         /* Map HBA Control Registers to a kernel virtual address. */
5324         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5325         if (!phba->ctrl_regs_memmap_p) {
5326                 dev_printk(KERN_ERR, &pdev->dev,
5327                            "ioremap failed for HBA control registers.\n");
5328                 goto out_iounmap_slim;
5329         }
5330
5331         /* Allocate memory for SLI-2 structures */
5332         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5333                                                SLI2_SLIM_SIZE,
5334                                                &phba->slim2p.phys,
5335                                                GFP_KERNEL);
5336         if (!phba->slim2p.virt)
5337                 goto out_iounmap;
5338
5339         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5340         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5341         phba->mbox_ext = (phba->slim2p.virt +
5342                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5343         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5344         phba->IOCBs = (phba->slim2p.virt +
5345                        offsetof(struct lpfc_sli2_slim, IOCBs));
5346
5347         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5348                                                  lpfc_sli_hbq_size(),
5349                                                  &phba->hbqslimp.phys,
5350                                                  GFP_KERNEL);
5351         if (!phba->hbqslimp.virt)
5352                 goto out_free_slim;
5353
5354         hbq_count = lpfc_sli_hbq_count();
5355         ptr = phba->hbqslimp.virt;
5356         for (i = 0; i < hbq_count; ++i) {
5357                 phba->hbqs[i].hbq_virt = ptr;
5358                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5359                 ptr += (lpfc_hbq_defs[i]->entry_count *
5360                         sizeof(struct lpfc_hbq_entry));
5361         }
5362         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5363         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5364
5365         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5366
5367         INIT_LIST_HEAD(&phba->rb_pend_list);
5368
5369         phba->MBslimaddr = phba->slim_memmap_p;
5370         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5371         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5372         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5373         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5374
5375         return 0;
5376
5377 out_free_slim:
5378         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5379                           phba->slim2p.virt, phba->slim2p.phys);
5380 out_iounmap:
5381         iounmap(phba->ctrl_regs_memmap_p);
5382 out_iounmap_slim:
5383         iounmap(phba->slim_memmap_p);
5384 out:
5385         return error;
5386 }
5387
5388 /**
5389  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5390  * @phba: pointer to lpfc hba data structure.
5391  *
5392  * This routine is invoked to unset the PCI device memory space for device
5393  * with SLI-3 interface spec.
5394  **/
5395 static void
5396 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5397 {
5398         struct pci_dev *pdev;
5399
5400         /* Obtain PCI device reference */
5401         if (!phba->pcidev)
5402                 return;
5403         else
5404                 pdev = phba->pcidev;
5405
5406         /* Free coherent DMA memory allocated */
5407         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5408                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5409         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5410                           phba->slim2p.virt, phba->slim2p.phys);
5411
5412         /* I/O memory unmap */
5413         iounmap(phba->ctrl_regs_memmap_p);
5414         iounmap(phba->slim_memmap_p);
5415
5416         return;
5417 }
5418
5419 /**
5420  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5421  * @phba: pointer to lpfc hba data structure.
5422  *
5423  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5424  * done and check status.
5425  *
5426  * Return 0 if successful, otherwise -ENODEV.
5427  **/
5428 int
5429 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5430 {
5431         struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg;
5432         struct lpfc_register reg_data;
5433         int i, port_error = 0;
5434         uint32_t if_type;
5435
5436         memset(&portsmphr_reg, 0, sizeof(portsmphr_reg));
5437         memset(&reg_data, 0, sizeof(reg_data));
5438         if (!phba->sli4_hba.PSMPHRregaddr)
5439                 return -ENODEV;
5440
5441         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5442         for (i = 0; i < 3000; i++) {
5443                 if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
5444                         &portsmphr_reg.word0) ||
5445                         (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) {
5446                         /* Port has a fatal POST error, break out */
5447                         port_error = -ENODEV;
5448                         break;
5449                 }
5450                 if (LPFC_POST_STAGE_PORT_READY ==
5451                     bf_get(lpfc_port_smphr_port_status, &portsmphr_reg))
5452                         break;
5453                 msleep(10);
5454         }
5455
5456         /*
5457          * If there was a port error during POST, then don't proceed with
5458          * other register reads as the data may not be valid.  Just exit.
5459          */
5460         if (port_error) {
5461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5462                         "1408 Port Failed POST - portsmphr=0x%x, "
5463                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, "
5464                         "scr2=x%x, hscratch=x%x, pstatus=x%x\n",
5465                         portsmphr_reg.word0,
5466                         bf_get(lpfc_port_smphr_perr, &portsmphr_reg),
5467                         bf_get(lpfc_port_smphr_sfi, &portsmphr_reg),
5468                         bf_get(lpfc_port_smphr_nip, &portsmphr_reg),
5469                         bf_get(lpfc_port_smphr_ipc, &portsmphr_reg),
5470                         bf_get(lpfc_port_smphr_scr1, &portsmphr_reg),
5471                         bf_get(lpfc_port_smphr_scr2, &portsmphr_reg),
5472                         bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg),
5473                         bf_get(lpfc_port_smphr_port_status, &portsmphr_reg));
5474         } else {
5475                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5476                                 "2534 Device Info: SLIFamily=0x%x, "
5477                                 "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, "
5478                                 "SLIHint_2=0x%x, FT=0x%x\n",
5479                                 bf_get(lpfc_sli_intf_sli_family,
5480                                        &phba->sli4_hba.sli_intf),
5481                                 bf_get(lpfc_sli_intf_slirev,
5482                                        &phba->sli4_hba.sli_intf),
5483                                 bf_get(lpfc_sli_intf_if_type,
5484                                        &phba->sli4_hba.sli_intf),
5485                                 bf_get(lpfc_sli_intf_sli_hint1,
5486                                        &phba->sli4_hba.sli_intf),
5487                                 bf_get(lpfc_sli_intf_sli_hint2,
5488                                        &phba->sli4_hba.sli_intf),
5489                                 bf_get(lpfc_sli_intf_func_type,
5490                                        &phba->sli4_hba.sli_intf));
5491                 /*
5492                  * Check for other Port errors during the initialization
5493                  * process.  Fail the load if the port did not come up
5494                  * correctly.
5495                  */
5496                 if_type = bf_get(lpfc_sli_intf_if_type,
5497                                  &phba->sli4_hba.sli_intf);
5498                 switch (if_type) {
5499                 case LPFC_SLI_INTF_IF_TYPE_0:
5500                         phba->sli4_hba.ue_mask_lo =
5501                               readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr);
5502                         phba->sli4_hba.ue_mask_hi =
5503                               readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr);
5504                         uerrlo_reg.word0 =
5505                               readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
5506                         uerrhi_reg.word0 =
5507                                 readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
5508                         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5509                             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5510                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5511                                                 "1422 Unrecoverable Error "
5512                                                 "Detected during POST "
5513                                                 "uerr_lo_reg=0x%x, "
5514                                                 "uerr_hi_reg=0x%x, "
5515                                                 "ue_mask_lo_reg=0x%x, "
5516                                                 "ue_mask_hi_reg=0x%x\n",
5517                                                 uerrlo_reg.word0,
5518                                                 uerrhi_reg.word0,
5519                                                 phba->sli4_hba.ue_mask_lo,
5520                                                 phba->sli4_hba.ue_mask_hi);
5521                                 port_error = -ENODEV;
5522                         }
5523                         break;
5524                 case LPFC_SLI_INTF_IF_TYPE_2:
5525                         /* Final checks.  The port status should be clean. */
5526                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
5527                                 &reg_data.word0) ||
5528                                 (bf_get(lpfc_sliport_status_err, &reg_data) &&
5529                                  !bf_get(lpfc_sliport_status_rn, &reg_data))) {
5530                                 phba->work_status[0] =
5531                                         readl(phba->sli4_hba.u.if_type2.
5532                                               ERR1regaddr);
5533                                 phba->work_status[1] =
5534                                         readl(phba->sli4_hba.u.if_type2.
5535                                               ERR2regaddr);
5536                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5537                                         "2888 Port Error Detected "
5538                                         "during POST: "
5539                                         "port status reg 0x%x, "
5540                                         "port_smphr reg 0x%x, "
5541                                         "error 1=0x%x, error 2=0x%x\n",
5542                                         reg_data.word0,
5543                                         portsmphr_reg.word0,
5544                                         phba->work_status[0],
5545                                         phba->work_status[1]);
5546                                 port_error = -ENODEV;
5547                         }
5548                         break;
5549                 case LPFC_SLI_INTF_IF_TYPE_1:
5550                 default:
5551                         break;
5552                 }
5553         }
5554         return port_error;
5555 }
5556
5557 /**
5558  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5559  * @phba: pointer to lpfc hba data structure.
5560  * @if_type:  The SLI4 interface type getting configured.
5561  *
5562  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5563  * memory map.
5564  **/
5565 static void
5566 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type)
5567 {
5568         switch (if_type) {
5569         case LPFC_SLI_INTF_IF_TYPE_0:
5570                 phba->sli4_hba.u.if_type0.UERRLOregaddr =
5571                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO;
5572                 phba->sli4_hba.u.if_type0.UERRHIregaddr =
5573                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI;
5574                 phba->sli4_hba.u.if_type0.UEMASKLOregaddr =
5575                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO;
5576                 phba->sli4_hba.u.if_type0.UEMASKHIregaddr =
5577                         phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI;
5578                 phba->sli4_hba.SLIINTFregaddr =
5579                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5580                 break;
5581         case LPFC_SLI_INTF_IF_TYPE_2:
5582                 phba->sli4_hba.u.if_type2.ERR1regaddr =
5583                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_1;
5584                 phba->sli4_hba.u.if_type2.ERR2regaddr =
5585                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_ERR_2;
5586                 phba->sli4_hba.u.if_type2.CTRLregaddr =
5587                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_CNTRL;
5588                 phba->sli4_hba.u.if_type2.STATUSregaddr =
5589                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_STATUS;
5590                 phba->sli4_hba.SLIINTFregaddr =
5591                         phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF;
5592                 phba->sli4_hba.PSMPHRregaddr =
5593                      phba->sli4_hba.conf_regs_memmap_p + LPFC_SLIPORT_IF2_SMPHR;
5594                 phba->sli4_hba.RQDBregaddr =
5595                         phba->sli4_hba.conf_regs_memmap_p + LPFC_RQ_DOORBELL;
5596                 phba->sli4_hba.WQDBregaddr =
5597                         phba->sli4_hba.conf_regs_memmap_p + LPFC_WQ_DOORBELL;
5598                 phba->sli4_hba.EQCQDBregaddr =
5599                         phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL;
5600                 phba->sli4_hba.MQDBregaddr =
5601                         phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL;
5602                 phba->sli4_hba.BMBXregaddr =
5603                         phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX;
5604                 break;
5605         case LPFC_SLI_INTF_IF_TYPE_1:
5606         default:
5607                 dev_printk(KERN_ERR, &phba->pcidev->dev,
5608                            "FATAL - unsupported SLI4 interface type - %d\n",
5609                            if_type);
5610                 break;
5611         }
5612 }
5613
5614 /**
5615  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5616  * @phba: pointer to lpfc hba data structure.
5617  *
5618  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5619  * memory map.
5620  **/
5621 static void
5622 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5623 {
5624         phba->sli4_hba.PSMPHRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5625                 LPFC_SLIPORT_IF0_SMPHR;
5626         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5627                 LPFC_HST_ISR0;
5628         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5629                 LPFC_HST_IMR0;
5630         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5631                 LPFC_HST_ISCR0;
5632 }
5633
5634 /**
5635  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5636  * @phba: pointer to lpfc hba data structure.
5637  * @vf: virtual function number
5638  *
5639  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5640  * based on the given viftual function number, @vf.
5641  *
5642  * Return 0 if successful, otherwise -ENODEV.
5643  **/
5644 static int
5645 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5646 {
5647         if (vf > LPFC_VIR_FUNC_MAX)
5648                 return -ENODEV;
5649
5650         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5651                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5652         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5653                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5654         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5655                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5656         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5657                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5658         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5659                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5660         return 0;
5661 }
5662
5663 /**
5664  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5665  * @phba: pointer to lpfc hba data structure.
5666  *
5667  * This routine is invoked to create the bootstrap mailbox
5668  * region consistent with the SLI-4 interface spec.  This
5669  * routine allocates all memory necessary to communicate
5670  * mailbox commands to the port and sets up all alignment
5671  * needs.  No locks are expected to be held when calling
5672  * this routine.
5673  *
5674  * Return codes
5675  *      0 - successful
5676  *      -ENOMEM - could not allocated memory.
5677  **/
5678 static int
5679 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5680 {
5681         uint32_t bmbx_size;
5682         struct lpfc_dmabuf *dmabuf;
5683         struct dma_address *dma_address;
5684         uint32_t pa_addr;
5685         uint64_t phys_addr;
5686
5687         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5688         if (!dmabuf)
5689                 return -ENOMEM;
5690
5691         /*
5692          * The bootstrap mailbox region is comprised of 2 parts
5693          * plus an alignment restriction of 16 bytes.
5694          */
5695         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5696         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5697                                           bmbx_size,
5698                                           &dmabuf->phys,
5699                                           GFP_KERNEL);
5700         if (!dmabuf->virt) {
5701                 kfree(dmabuf);
5702                 return -ENOMEM;
5703         }
5704         memset(dmabuf->virt, 0, bmbx_size);
5705
5706         /*
5707          * Initialize the bootstrap mailbox pointers now so that the register
5708          * operations are simple later.  The mailbox dma address is required
5709          * to be 16-byte aligned.  Also align the virtual memory as each
5710          * maibox is copied into the bmbx mailbox region before issuing the
5711          * command to the port.
5712          */
5713         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5714         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5715
5716         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5717                                               LPFC_ALIGN_16_BYTE);
5718         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5719                                               LPFC_ALIGN_16_BYTE);
5720
5721         /*
5722          * Set the high and low physical addresses now.  The SLI4 alignment
5723          * requirement is 16 bytes and the mailbox is posted to the port
5724          * as two 30-bit addresses.  The other data is a bit marking whether
5725          * the 30-bit address is the high or low address.
5726          * Upcast bmbx aphys to 64bits so shift instruction compiles
5727          * clean on 32 bit machines.
5728          */
5729         dma_address = &phba->sli4_hba.bmbx.dma_address;
5730         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5731         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5732         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5733                                            LPFC_BMBX_BIT1_ADDR_HI);
5734
5735         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5736         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5737                                            LPFC_BMBX_BIT1_ADDR_LO);
5738         return 0;
5739 }
5740
5741 /**
5742  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5743  * @phba: pointer to lpfc hba data structure.
5744  *
5745  * This routine is invoked to teardown the bootstrap mailbox
5746  * region and release all host resources. This routine requires
5747  * the caller to ensure all mailbox commands recovered, no
5748  * additional mailbox comands are sent, and interrupts are disabled
5749  * before calling this routine.
5750  *
5751  **/
5752 static void
5753 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5754 {
5755         dma_free_coherent(&phba->pcidev->dev,
5756                           phba->sli4_hba.bmbx.bmbx_size,
5757                           phba->sli4_hba.bmbx.dmabuf->virt,
5758                           phba->sli4_hba.bmbx.dmabuf->phys);
5759
5760         kfree(phba->sli4_hba.bmbx.dmabuf);
5761         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5762 }
5763
5764 /**
5765  * lpfc_sli4_read_config - Get the config parameters.
5766  * @phba: pointer to lpfc hba data structure.
5767  *
5768  * This routine is invoked to read the configuration parameters from the HBA.
5769  * The configuration parameters are used to set the base and maximum values
5770  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5771  * allocation for the port.
5772  *
5773  * Return codes
5774  *      0 - successful
5775  *      -ENOMEM - No available memory
5776  *      -EIO - The mailbox failed to complete successfully.
5777  **/
5778 static int
5779 lpfc_sli4_read_config(struct lpfc_hba *phba)
5780 {
5781         LPFC_MBOXQ_t *pmb;
5782         struct lpfc_mbx_read_config *rd_config;
5783         uint32_t rc = 0;
5784
5785         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5786         if (!pmb) {
5787                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5788                                 "2011 Unable to allocate memory for issuing "
5789                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5790                 return -ENOMEM;
5791         }
5792
5793         lpfc_read_config(phba, pmb);
5794
5795         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5796         if (rc != MBX_SUCCESS) {
5797                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5798                         "2012 Mailbox failed , mbxCmd x%x "
5799                         "READ_CONFIG, mbxStatus x%x\n",
5800                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5801                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5802                 rc = -EIO;
5803         } else {
5804                 rd_config = &pmb->u.mqe.un.rd_config;
5805                 phba->sli4_hba.max_cfg_param.max_xri =
5806                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5807                 phba->sli4_hba.max_cfg_param.xri_base =
5808                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5809                 phba->sli4_hba.max_cfg_param.max_vpi =
5810                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5811                 phba->sli4_hba.max_cfg_param.vpi_base =
5812                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5813                 phba->sli4_hba.max_cfg_param.max_rpi =
5814                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5815                 phba->sli4_hba.max_cfg_param.rpi_base =
5816                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5817                 phba->sli4_hba.max_cfg_param.max_vfi =
5818                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5819                 phba->sli4_hba.max_cfg_param.vfi_base =
5820                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5821                 phba->sli4_hba.max_cfg_param.max_fcfi =
5822                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5823                 phba->sli4_hba.max_cfg_param.fcfi_base =
5824                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5825                 phba->sli4_hba.max_cfg_param.max_eq =
5826                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5827                 phba->sli4_hba.max_cfg_param.max_rq =
5828                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5829                 phba->sli4_hba.max_cfg_param.max_wq =
5830                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5831                 phba->sli4_hba.max_cfg_param.max_cq =
5832                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5833                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5834                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5835                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5836                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5837                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5838                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5839                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5840                 phba->max_vports = phba->max_vpi;
5841                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5842                                 "2003 cfg params XRI(B:%d M:%d), "
5843                                 "VPI(B:%d M:%d) "
5844                                 "VFI(B:%d M:%d) "
5845                                 "RPI(B:%d M:%d) "
5846                                 "FCFI(B:%d M:%d)\n",
5847                                 phba->sli4_hba.max_cfg_param.xri_base,
5848                                 phba->sli4_hba.max_cfg_param.max_xri,
5849                                 phba->sli4_hba.max_cfg_param.vpi_base,
5850                                 phba->sli4_hba.max_cfg_param.max_vpi,
5851                                 phba->sli4_hba.max_cfg_param.vfi_base,
5852                                 phba->sli4_hba.max_cfg_param.max_vfi,
5853                                 phba->sli4_hba.max_cfg_param.rpi_base,
5854                                 phba->sli4_hba.max_cfg_param.max_rpi,
5855                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5856                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5857         }
5858         mempool_free(pmb, phba->mbox_mem_pool);
5859
5860         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5861         if (phba->cfg_hba_queue_depth >
5862                 (phba->sli4_hba.max_cfg_param.max_xri -
5863                         lpfc_sli4_get_els_iocb_cnt(phba)))
5864                 phba->cfg_hba_queue_depth =
5865                         phba->sli4_hba.max_cfg_param.max_xri -
5866                                 lpfc_sli4_get_els_iocb_cnt(phba);
5867         return rc;
5868 }
5869
5870 /**
5871  * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port.
5872  * @phba: pointer to lpfc hba data structure.
5873  *
5874  * This routine is invoked to setup the port-side endian order when
5875  * the port if_type is 0.  This routine has no function for other
5876  * if_types.
5877  *
5878  * Return codes
5879  *      0 - successful
5880  *      -ENOMEM - No available memory
5881  *      -EIO - The mailbox failed to complete successfully.
5882  **/
5883 static int
5884 lpfc_setup_endian_order(struct lpfc_hba *phba)
5885 {
5886         LPFC_MBOXQ_t *mboxq;
5887         uint32_t if_type, rc = 0;
5888         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5889                                       HOST_ENDIAN_HIGH_WORD1};
5890
5891         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
5892         switch (if_type) {
5893         case LPFC_SLI_INTF_IF_TYPE_0:
5894                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
5895                                                        GFP_KERNEL);
5896                 if (!mboxq) {
5897                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5898                                         "0492 Unable to allocate memory for "
5899                                         "issuing SLI_CONFIG_SPECIAL mailbox "
5900                                         "command\n");
5901                         return -ENOMEM;
5902                 }
5903
5904                 /*
5905                  * The SLI4_CONFIG_SPECIAL mailbox command requires the first
5906                  * two words to contain special data values and no other data.
5907                  */
5908                 memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5909                 memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5910                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5911                 if (rc != MBX_SUCCESS) {
5912                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5913                                         "0493 SLI_CONFIG_SPECIAL mailbox "
5914                                         "failed with status x%x\n",
5915                                         rc);
5916                         rc = -EIO;
5917                 }
5918                 mempool_free(mboxq, phba->mbox_mem_pool);
5919                 break;
5920         case LPFC_SLI_INTF_IF_TYPE_2:
5921         case LPFC_SLI_INTF_IF_TYPE_1:
5922         default:
5923                 break;
5924         }
5925         return rc;
5926 }
5927
5928 /**
5929  * lpfc_sli4_queue_create - Create all the SLI4 queues
5930  * @phba: pointer to lpfc hba data structure.
5931  *
5932  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5933  * operation. For each SLI4 queue type, the parameters such as queue entry
5934  * count (queue depth) shall be taken from the module parameter. For now,
5935  * we just use some constant number as place holder.
5936  *
5937  * Return codes
5938  *      0 - successful
5939  *      -ENOMEM - No available memory
5940  *      -EIO - The mailbox failed to complete successfully.
5941  **/
5942 static int
5943 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5944 {
5945         struct lpfc_queue *qdesc;
5946         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5947         int cfg_fcp_wq_count;
5948         int cfg_fcp_eq_count;
5949
5950         /*
5951          * Sanity check for confiugred queue parameters against the run-time
5952          * device parameters
5953          */
5954
5955         /* Sanity check on FCP fast-path WQ parameters */
5956         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5957         if (cfg_fcp_wq_count >
5958             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5959                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5960                                    LPFC_SP_WQN_DEF;
5961                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5962                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5963                                         "2581 Not enough WQs (%d) from "
5964                                         "the pci function for supporting "
5965                                         "FCP WQs (%d)\n",
5966                                         phba->sli4_hba.max_cfg_param.max_wq,
5967                                         phba->cfg_fcp_wq_count);
5968                         goto out_error;
5969                 }
5970                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5971                                 "2582 Not enough WQs (%d) from the pci "
5972                                 "function for supporting the requested "
5973                                 "FCP WQs (%d), the actual FCP WQs can "
5974                                 "be supported: %d\n",
5975                                 phba->sli4_hba.max_cfg_param.max_wq,
5976                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5977         }
5978         /* The actual number of FCP work queues adopted */
5979         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5980
5981         /* Sanity check on FCP fast-path EQ parameters */
5982         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5983         if (cfg_fcp_eq_count >
5984             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5985                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5986                                    LPFC_SP_EQN_DEF;
5987                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5988                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5989                                         "2574 Not enough EQs (%d) from the "
5990                                         "pci function for supporting FCP "
5991                                         "EQs (%d)\n",
5992                                         phba->sli4_hba.max_cfg_param.max_eq,
5993                                         phba->cfg_fcp_eq_count);
5994                         goto out_error;
5995                 }
5996                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5997                                 "2575 Not enough EQs (%d) from the pci "
5998                                 "function for supporting the requested "
5999                                 "FCP EQs (%d), the actual FCP EQs can "
6000                                 "be supported: %d\n",
6001                                 phba->sli4_hba.max_cfg_param.max_eq,
6002                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
6003         }
6004         /* It does not make sense to have more EQs than WQs */
6005         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
6006                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6007                                 "2593 The FCP EQ count(%d) cannot be greater "
6008                                 "than the FCP WQ count(%d), limiting the "
6009                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
6010                                 phba->cfg_fcp_wq_count,
6011                                 phba->cfg_fcp_wq_count);
6012                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
6013         }
6014         /* The actual number of FCP event queues adopted */
6015         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
6016         /* The overall number of event queues used */
6017         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
6018
6019         /*
6020          * Create Event Queues (EQs)
6021          */
6022
6023         /* Get EQ depth from module parameter, fake the default for now */
6024         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
6025         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
6026
6027         /* Create slow path event queue */
6028         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6029                                       phba->sli4_hba.eq_ecount);
6030         if (!qdesc) {
6031                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6032                                 "0496 Failed allocate slow-path EQ\n");
6033                 goto out_error;
6034         }
6035         phba->sli4_hba.sp_eq = qdesc;
6036
6037         /* Create fast-path FCP Event Queue(s) */
6038         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
6039                                phba->cfg_fcp_eq_count), GFP_KERNEL);
6040         if (!phba->sli4_hba.fp_eq) {
6041                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6042                                 "2576 Failed allocate memory for fast-path "
6043                                 "EQ record array\n");
6044                 goto out_free_sp_eq;
6045         }
6046         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6047                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
6048                                               phba->sli4_hba.eq_ecount);
6049                 if (!qdesc) {
6050                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6051                                         "0497 Failed allocate fast-path EQ\n");
6052                         goto out_free_fp_eq;
6053                 }
6054                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
6055         }
6056
6057         /*
6058          * Create Complete Queues (CQs)
6059          */
6060
6061         /* Get CQ depth from module parameter, fake the default for now */
6062         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
6063         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
6064
6065         /* Create slow-path Mailbox Command Complete Queue */
6066         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6067                                       phba->sli4_hba.cq_ecount);
6068         if (!qdesc) {
6069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6070                                 "0500 Failed allocate slow-path mailbox CQ\n");
6071                 goto out_free_fp_eq;
6072         }
6073         phba->sli4_hba.mbx_cq = qdesc;
6074
6075         /* Create slow-path ELS Complete Queue */
6076         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6077                                       phba->sli4_hba.cq_ecount);
6078         if (!qdesc) {
6079                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6080                                 "0501 Failed allocate slow-path ELS CQ\n");
6081                 goto out_free_mbx_cq;
6082         }
6083         phba->sli4_hba.els_cq = qdesc;
6084
6085
6086         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
6087         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
6088                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
6089         if (!phba->sli4_hba.fcp_cq) {
6090                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6091                                 "2577 Failed allocate memory for fast-path "
6092                                 "CQ record array\n");
6093                 goto out_free_els_cq;
6094         }
6095         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6096                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
6097                                               phba->sli4_hba.cq_ecount);
6098                 if (!qdesc) {
6099                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6100                                         "0499 Failed allocate fast-path FCP "
6101                                         "CQ (%d)\n", fcp_cqidx);
6102                         goto out_free_fcp_cq;
6103                 }
6104                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
6105         }
6106
6107         /* Create Mailbox Command Queue */
6108         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
6109         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
6110
6111         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
6112                                       phba->sli4_hba.mq_ecount);
6113         if (!qdesc) {
6114                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6115                                 "0505 Failed allocate slow-path MQ\n");
6116                 goto out_free_fcp_cq;
6117         }
6118         phba->sli4_hba.mbx_wq = qdesc;
6119
6120         /*
6121          * Create all the Work Queues (WQs)
6122          */
6123         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
6124         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
6125
6126         /* Create slow-path ELS Work Queue */
6127         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6128                                       phba->sli4_hba.wq_ecount);
6129         if (!qdesc) {
6130                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6131                                 "0504 Failed allocate slow-path ELS WQ\n");
6132                 goto out_free_mbx_wq;
6133         }
6134         phba->sli4_hba.els_wq = qdesc;
6135
6136         /* Create fast-path FCP Work Queue(s) */
6137         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
6138                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
6139         if (!phba->sli4_hba.fcp_wq) {
6140                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6141                                 "2578 Failed allocate memory for fast-path "
6142                                 "WQ record array\n");
6143                 goto out_free_els_wq;
6144         }
6145         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6146                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
6147                                               phba->sli4_hba.wq_ecount);
6148                 if (!qdesc) {
6149                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6150                                         "0503 Failed allocate fast-path FCP "
6151                                         "WQ (%d)\n", fcp_wqidx);
6152                         goto out_free_fcp_wq;
6153                 }
6154                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
6155         }
6156
6157         /*
6158          * Create Receive Queue (RQ)
6159          */
6160         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
6161         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
6162
6163         /* Create Receive Queue for header */
6164         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6165                                       phba->sli4_hba.rq_ecount);
6166         if (!qdesc) {
6167                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6168                                 "0506 Failed allocate receive HRQ\n");
6169                 goto out_free_fcp_wq;
6170         }
6171         phba->sli4_hba.hdr_rq = qdesc;
6172
6173         /* Create Receive Queue for data */
6174         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
6175                                       phba->sli4_hba.rq_ecount);
6176         if (!qdesc) {
6177                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6178                                 "0507 Failed allocate receive DRQ\n");
6179                 goto out_free_hdr_rq;
6180         }
6181         phba->sli4_hba.dat_rq = qdesc;
6182
6183         return 0;
6184
6185 out_free_hdr_rq:
6186         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6187         phba->sli4_hba.hdr_rq = NULL;
6188 out_free_fcp_wq:
6189         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
6190                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
6191                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
6192         }
6193         kfree(phba->sli4_hba.fcp_wq);
6194 out_free_els_wq:
6195         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6196         phba->sli4_hba.els_wq = NULL;
6197 out_free_mbx_wq:
6198         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6199         phba->sli4_hba.mbx_wq = NULL;
6200 out_free_fcp_cq:
6201         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
6202                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
6203                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
6204         }
6205         kfree(phba->sli4_hba.fcp_cq);
6206 out_free_els_cq:
6207         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6208         phba->sli4_hba.els_cq = NULL;
6209 out_free_mbx_cq:
6210         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6211         phba->sli4_hba.mbx_cq = NULL;
6212 out_free_fp_eq:
6213         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
6214                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
6215                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
6216         }
6217         kfree(phba->sli4_hba.fp_eq);
6218 out_free_sp_eq:
6219         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6220         phba->sli4_hba.sp_eq = NULL;
6221 out_error:
6222         return -ENOMEM;
6223 }
6224
6225 /**
6226  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
6227  * @phba: pointer to lpfc hba data structure.
6228  *
6229  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
6230  * operation.
6231  *
6232  * Return codes
6233  *      0 - successful
6234  *      -ENOMEM - No available memory
6235  *      -EIO - The mailbox failed to complete successfully.
6236  **/
6237 static void
6238 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
6239 {
6240         int fcp_qidx;
6241
6242         /* Release mailbox command work queue */
6243         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
6244         phba->sli4_hba.mbx_wq = NULL;
6245
6246         /* Release ELS work queue */
6247         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
6248         phba->sli4_hba.els_wq = NULL;
6249
6250         /* Release FCP work queue */
6251         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6252                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
6253         kfree(phba->sli4_hba.fcp_wq);
6254         phba->sli4_hba.fcp_wq = NULL;
6255
6256         /* Release unsolicited receive queue */
6257         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
6258         phba->sli4_hba.hdr_rq = NULL;
6259         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
6260         phba->sli4_hba.dat_rq = NULL;
6261
6262         /* Release ELS complete queue */
6263         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
6264         phba->sli4_hba.els_cq = NULL;
6265
6266         /* Release mailbox command complete queue */
6267         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
6268         phba->sli4_hba.mbx_cq = NULL;
6269
6270         /* Release FCP response complete queue */
6271         fcp_qidx = 0;
6272         do
6273                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
6274         while (++fcp_qidx < phba->cfg_fcp_eq_count);
6275         kfree(phba->sli4_hba.fcp_cq);
6276         phba->sli4_hba.fcp_cq = NULL;
6277
6278         /* Release fast-path event queue */
6279         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6280                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
6281         kfree(phba->sli4_hba.fp_eq);
6282         phba->sli4_hba.fp_eq = NULL;
6283
6284         /* Release slow-path event queue */
6285         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
6286         phba->sli4_hba.sp_eq = NULL;
6287
6288         return;
6289 }
6290
6291 /**
6292  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
6293  * @phba: pointer to lpfc hba data structure.
6294  *
6295  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
6296  * operation.
6297  *
6298  * Return codes
6299  *      0 - successful
6300  *      -ENOMEM - No available memory
6301  *      -EIO - The mailbox failed to complete successfully.
6302  **/
6303 int
6304 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
6305 {
6306         int rc = -ENOMEM;
6307         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
6308         int fcp_cq_index = 0;
6309
6310         /*
6311          * Set up Event Queues (EQs)
6312          */
6313
6314         /* Set up slow-path event queue */
6315         if (!phba->sli4_hba.sp_eq) {
6316                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6317                                 "0520 Slow-path EQ not allocated\n");
6318                 goto out_error;
6319         }
6320         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
6321                             LPFC_SP_DEF_IMAX);
6322         if (rc) {
6323                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6324                                 "0521 Failed setup of slow-path EQ: "
6325                                 "rc = 0x%x\n", rc);
6326                 goto out_error;
6327         }
6328         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6329                         "2583 Slow-path EQ setup: queue-id=%d\n",
6330                         phba->sli4_hba.sp_eq->queue_id);
6331
6332         /* Set up fast-path event queue */
6333         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
6334                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
6335                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6336                                         "0522 Fast-path EQ (%d) not "
6337                                         "allocated\n", fcp_eqidx);
6338                         goto out_destroy_fp_eq;
6339                 }
6340                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6341                                     phba->cfg_fcp_imax);
6342                 if (rc) {
6343                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6344                                         "0523 Failed setup of fast-path EQ "
6345                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6346                         goto out_destroy_fp_eq;
6347                 }
6348                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6349                                 "2584 Fast-path EQ setup: "
6350                                 "queue[%d]-id=%d\n", fcp_eqidx,
6351                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6352         }
6353
6354         /*
6355          * Set up Complete Queues (CQs)
6356          */
6357
6358         /* Set up slow-path MBOX Complete Queue as the first CQ */
6359         if (!phba->sli4_hba.mbx_cq) {
6360                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6361                                 "0528 Mailbox CQ not allocated\n");
6362                 goto out_destroy_fp_eq;
6363         }
6364         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6365                             LPFC_MCQ, LPFC_MBOX);
6366         if (rc) {
6367                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6368                                 "0529 Failed setup of slow-path mailbox CQ: "
6369                                 "rc = 0x%x\n", rc);
6370                 goto out_destroy_fp_eq;
6371         }
6372         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6373                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6374                         phba->sli4_hba.mbx_cq->queue_id,
6375                         phba->sli4_hba.sp_eq->queue_id);
6376
6377         /* Set up slow-path ELS Complete Queue */
6378         if (!phba->sli4_hba.els_cq) {
6379                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6380                                 "0530 ELS CQ not allocated\n");
6381                 goto out_destroy_mbx_cq;
6382         }
6383         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6384                             LPFC_WCQ, LPFC_ELS);
6385         if (rc) {
6386                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6387                                 "0531 Failed setup of slow-path ELS CQ: "
6388                                 "rc = 0x%x\n", rc);
6389                 goto out_destroy_mbx_cq;
6390         }
6391         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6392                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6393                         phba->sli4_hba.els_cq->queue_id,
6394                         phba->sli4_hba.sp_eq->queue_id);
6395
6396         /* Set up fast-path FCP Response Complete Queue */
6397         fcp_cqidx = 0;
6398         do {
6399                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6400                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6401                                         "0526 Fast-path FCP CQ (%d) not "
6402                                         "allocated\n", fcp_cqidx);
6403                         goto out_destroy_fcp_cq;
6404                 }
6405                 if (phba->cfg_fcp_eq_count)
6406                         rc = lpfc_cq_create(phba,
6407                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6408                                             phba->sli4_hba.fp_eq[fcp_cqidx],
6409                                             LPFC_WCQ, LPFC_FCP);
6410                 else
6411                         rc = lpfc_cq_create(phba,
6412                                             phba->sli4_hba.fcp_cq[fcp_cqidx],
6413                                             phba->sli4_hba.sp_eq,
6414                                             LPFC_WCQ, LPFC_FCP);
6415                 if (rc) {
6416                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6417                                         "0527 Failed setup of fast-path FCP "
6418                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6419                         goto out_destroy_fcp_cq;
6420                 }
6421                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6422                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6423                                 "parent %seq[%d]-id=%d\n",
6424                                 fcp_cqidx,
6425                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6426                                 (phba->cfg_fcp_eq_count) ? "" : "sp_",
6427                                 fcp_cqidx,
6428                                 (phba->cfg_fcp_eq_count) ?
6429                                    phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id :
6430                                    phba->sli4_hba.sp_eq->queue_id);
6431         } while (++fcp_cqidx < phba->cfg_fcp_eq_count);
6432
6433         /*
6434          * Set up all the Work Queues (WQs)
6435          */
6436
6437         /* Set up Mailbox Command Queue */
6438         if (!phba->sli4_hba.mbx_wq) {
6439                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6440                                 "0538 Slow-path MQ not allocated\n");
6441                 goto out_destroy_fcp_cq;
6442         }
6443         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6444                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6445         if (rc) {
6446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6447                                 "0539 Failed setup of slow-path MQ: "
6448                                 "rc = 0x%x\n", rc);
6449                 goto out_destroy_fcp_cq;
6450         }
6451         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6452                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6453                         phba->sli4_hba.mbx_wq->queue_id,
6454                         phba->sli4_hba.mbx_cq->queue_id);
6455
6456         /* Set up slow-path ELS Work Queue */
6457         if (!phba->sli4_hba.els_wq) {
6458                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6459                                 "0536 Slow-path ELS WQ not allocated\n");
6460                 goto out_destroy_mbx_wq;
6461         }
6462         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6463                             phba->sli4_hba.els_cq, LPFC_ELS);
6464         if (rc) {
6465                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6466                                 "0537 Failed setup of slow-path ELS WQ: "
6467                                 "rc = 0x%x\n", rc);
6468                 goto out_destroy_mbx_wq;
6469         }
6470         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6471                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6472                         phba->sli4_hba.els_wq->queue_id,
6473                         phba->sli4_hba.els_cq->queue_id);
6474
6475         /* Set up fast-path FCP Work Queue */
6476         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6477                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6478                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6479                                         "0534 Fast-path FCP WQ (%d) not "
6480                                         "allocated\n", fcp_wqidx);
6481                         goto out_destroy_fcp_wq;
6482                 }
6483                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6484                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6485                                     LPFC_FCP);
6486                 if (rc) {
6487                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6488                                         "0535 Failed setup of fast-path FCP "
6489                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6490                         goto out_destroy_fcp_wq;
6491                 }
6492                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6493                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6494                                 "parent cq[%d]-id=%d\n",
6495                                 fcp_wqidx,
6496                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6497                                 fcp_cq_index,
6498                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6499                 /* Round robin FCP Work Queue's Completion Queue assignment */
6500                 if (phba->cfg_fcp_eq_count)
6501                         fcp_cq_index = ((fcp_cq_index + 1) %
6502                                         phba->cfg_fcp_eq_count);
6503         }
6504
6505         /*
6506          * Create Receive Queue (RQ)
6507          */
6508         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6509                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6510                                 "0540 Receive Queue not allocated\n");
6511                 goto out_destroy_fcp_wq;
6512         }
6513         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6514                             phba->sli4_hba.els_cq, LPFC_USOL);
6515         if (rc) {
6516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6517                                 "0541 Failed setup of Receive Queue: "
6518                                 "rc = 0x%x\n", rc);
6519                 goto out_destroy_fcp_wq;
6520         }
6521         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6522                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6523                         "parent cq-id=%d\n",
6524                         phba->sli4_hba.hdr_rq->queue_id,
6525                         phba->sli4_hba.dat_rq->queue_id,
6526                         phba->sli4_hba.els_cq->queue_id);
6527         return 0;
6528
6529 out_destroy_fcp_wq:
6530         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6531                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6532         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6533 out_destroy_mbx_wq:
6534         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6535 out_destroy_fcp_cq:
6536         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6537                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6538         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6539 out_destroy_mbx_cq:
6540         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6541 out_destroy_fp_eq:
6542         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6543                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6544         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6545 out_error:
6546         return rc;
6547 }
6548
6549 /**
6550  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6551  * @phba: pointer to lpfc hba data structure.
6552  *
6553  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6554  * operation.
6555  *
6556  * Return codes
6557  *      0 - successful
6558  *      -ENOMEM - No available memory
6559  *      -EIO - The mailbox failed to complete successfully.
6560  **/
6561 void
6562 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6563 {
6564         int fcp_qidx;
6565
6566         /* Unset mailbox command work queue */
6567         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6568         /* Unset ELS work queue */
6569         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6570         /* Unset unsolicited receive queue */
6571         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6572         /* Unset FCP work queue */
6573         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6574                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6575         /* Unset mailbox command complete queue */
6576         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6577         /* Unset ELS complete queue */
6578         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6579         /* Unset FCP response complete queue */
6580         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6581                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6582         /* Unset fast-path event queue */
6583         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6584                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6585         /* Unset slow-path event queue */
6586         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6587 }
6588
6589 /**
6590  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6591  * @phba: pointer to lpfc hba data structure.
6592  *
6593  * This routine is invoked to allocate and set up a pool of completion queue
6594  * events. The body of the completion queue event is a completion queue entry
6595  * CQE. For now, this pool is used for the interrupt service routine to queue
6596  * the following HBA completion queue events for the worker thread to process:
6597  *   - Mailbox asynchronous events
6598  *   - Receive queue completion unsolicited events
6599  * Later, this can be used for all the slow-path events.
6600  *
6601  * Return codes
6602  *      0 - successful
6603  *      -ENOMEM - No available memory
6604  **/
6605 static int
6606 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6607 {
6608         struct lpfc_cq_event *cq_event;
6609         int i;
6610
6611         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6612                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6613                 if (!cq_event)
6614                         goto out_pool_create_fail;
6615                 list_add_tail(&cq_event->list,
6616                               &phba->sli4_hba.sp_cqe_event_pool);
6617         }
6618         return 0;
6619
6620 out_pool_create_fail:
6621         lpfc_sli4_cq_event_pool_destroy(phba);
6622         return -ENOMEM;
6623 }
6624
6625 /**
6626  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6627  * @phba: pointer to lpfc hba data structure.
6628  *
6629  * This routine is invoked to free the pool of completion queue events at
6630  * driver unload time. Note that, it is the responsibility of the driver
6631  * cleanup routine to free all the outstanding completion-queue events
6632  * allocated from this pool back into the pool before invoking this routine
6633  * to destroy the pool.
6634  **/
6635 static void
6636 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6637 {
6638         struct lpfc_cq_event *cq_event, *next_cq_event;
6639
6640         list_for_each_entry_safe(cq_event, next_cq_event,
6641                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6642                 list_del(&cq_event->list);
6643                 kfree(cq_event);
6644         }
6645 }
6646
6647 /**
6648  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6649  * @phba: pointer to lpfc hba data structure.
6650  *
6651  * This routine is the lock free version of the API invoked to allocate a
6652  * completion-queue event from the free pool.
6653  *
6654  * Return: Pointer to the newly allocated completion-queue event if successful
6655  *         NULL otherwise.
6656  **/
6657 struct lpfc_cq_event *
6658 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6659 {
6660         struct lpfc_cq_event *cq_event = NULL;
6661
6662         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6663                          struct lpfc_cq_event, list);
6664         return cq_event;
6665 }
6666
6667 /**
6668  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6669  * @phba: pointer to lpfc hba data structure.
6670  *
6671  * This routine is the lock version of the API invoked to allocate a
6672  * completion-queue event from the free pool.
6673  *
6674  * Return: Pointer to the newly allocated completion-queue event if successful
6675  *         NULL otherwise.
6676  **/
6677 struct lpfc_cq_event *
6678 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6679 {
6680         struct lpfc_cq_event *cq_event;
6681         unsigned long iflags;
6682
6683         spin_lock_irqsave(&phba->hbalock, iflags);
6684         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6685         spin_unlock_irqrestore(&phba->hbalock, iflags);
6686         return cq_event;
6687 }
6688
6689 /**
6690  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6691  * @phba: pointer to lpfc hba data structure.
6692  * @cq_event: pointer to the completion queue event to be freed.
6693  *
6694  * This routine is the lock free version of the API invoked to release a
6695  * completion-queue event back into the free pool.
6696  **/
6697 void
6698 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6699                              struct lpfc_cq_event *cq_event)
6700 {
6701         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6702 }
6703
6704 /**
6705  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6706  * @phba: pointer to lpfc hba data structure.
6707  * @cq_event: pointer to the completion queue event to be freed.
6708  *
6709  * This routine is the lock version of the API invoked to release a
6710  * completion-queue event back into the free pool.
6711  **/
6712 void
6713 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6714                            struct lpfc_cq_event *cq_event)
6715 {
6716         unsigned long iflags;
6717         spin_lock_irqsave(&phba->hbalock, iflags);
6718         __lpfc_sli4_cq_event_release(phba, cq_event);
6719         spin_unlock_irqrestore(&phba->hbalock, iflags);
6720 }
6721
6722 /**
6723  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6724  * @phba: pointer to lpfc hba data structure.
6725  *
6726  * This routine is to free all the pending completion-queue events to the
6727  * back into the free pool for device reset.
6728  **/
6729 static void
6730 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6731 {
6732         LIST_HEAD(cqelist);
6733         struct lpfc_cq_event *cqe;
6734         unsigned long iflags;
6735
6736         /* Retrieve all the pending WCQEs from pending WCQE lists */
6737         spin_lock_irqsave(&phba->hbalock, iflags);
6738         /* Pending FCP XRI abort events */
6739         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6740                          &cqelist);
6741         /* Pending ELS XRI abort events */
6742         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6743                          &cqelist);
6744         /* Pending asynnc events */
6745         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6746                          &cqelist);
6747         spin_unlock_irqrestore(&phba->hbalock, iflags);
6748
6749         while (!list_empty(&cqelist)) {
6750                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6751                 lpfc_sli4_cq_event_release(phba, cqe);
6752         }
6753 }
6754
6755 /**
6756  * lpfc_pci_function_reset - Reset pci function.
6757  * @phba: pointer to lpfc hba data structure.
6758  *
6759  * This routine is invoked to request a PCI function reset. It will destroys
6760  * all resources assigned to the PCI function which originates this request.
6761  *
6762  * Return codes
6763  *      0 - successful
6764  *      -ENOMEM - No available memory
6765  *      -EIO - The mailbox failed to complete successfully.
6766  **/
6767 int
6768 lpfc_pci_function_reset(struct lpfc_hba *phba)
6769 {
6770         LPFC_MBOXQ_t *mboxq;
6771         uint32_t rc = 0, if_type;
6772         uint32_t shdr_status, shdr_add_status;
6773         uint32_t rdy_chk, num_resets = 0, reset_again = 0;
6774         union lpfc_sli4_cfg_shdr *shdr;
6775         struct lpfc_register reg_data;
6776
6777         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
6778         switch (if_type) {
6779         case LPFC_SLI_INTF_IF_TYPE_0:
6780                 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
6781                                                        GFP_KERNEL);
6782                 if (!mboxq) {
6783                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6784                                         "0494 Unable to allocate memory for "
6785                                         "issuing SLI_FUNCTION_RESET mailbox "
6786                                         "command\n");
6787                         return -ENOMEM;
6788                 }
6789
6790                 /* Setup PCI function reset mailbox-ioctl command */
6791                 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6792                                  LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6793                                  LPFC_SLI4_MBX_EMBED);
6794                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6795                 shdr = (union lpfc_sli4_cfg_shdr *)
6796                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6797                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6798                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6799                                          &shdr->response);
6800                 if (rc != MBX_TIMEOUT)
6801                         mempool_free(mboxq, phba->mbox_mem_pool);
6802                 if (shdr_status || shdr_add_status || rc) {
6803                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6804                                         "0495 SLI_FUNCTION_RESET mailbox "
6805                                         "failed with status x%x add_status x%x,"
6806                                         " mbx status x%x\n",
6807                                         shdr_status, shdr_add_status, rc);
6808                         rc = -ENXIO;
6809                 }
6810                 break;
6811         case LPFC_SLI_INTF_IF_TYPE_2:
6812                 for (num_resets = 0;
6813                      num_resets < MAX_IF_TYPE_2_RESETS;
6814                      num_resets++) {
6815                         reg_data.word0 = 0;
6816                         bf_set(lpfc_sliport_ctrl_end, &reg_data,
6817                                LPFC_SLIPORT_LITTLE_ENDIAN);
6818                         bf_set(lpfc_sliport_ctrl_ip, &reg_data,
6819                                LPFC_SLIPORT_INIT_PORT);
6820                         writel(reg_data.word0, phba->sli4_hba.u.if_type2.
6821                                CTRLregaddr);
6822
6823                         /*
6824                          * Poll the Port Status Register and wait for RDY for
6825                          * up to 10 seconds.  If the port doesn't respond, treat
6826                          * it as an error.  If the port responds with RN, start
6827                          * the loop again.
6828                          */
6829                         for (rdy_chk = 0; rdy_chk < 1000; rdy_chk++) {
6830                                 if (lpfc_readl(phba->sli4_hba.u.if_type2.
6831                                               STATUSregaddr, &reg_data.word0)) {
6832                                         rc = -ENODEV;
6833                                         break;
6834                                 }
6835                                 if (bf_get(lpfc_sliport_status_rdy, &reg_data))
6836                                         break;
6837                                 if (bf_get(lpfc_sliport_status_rn, &reg_data)) {
6838                                         reset_again++;
6839                                         break;
6840                                 }
6841                                 msleep(10);
6842                         }
6843
6844                         /*
6845                          * If the port responds to the init request with
6846                          * reset needed, delay for a bit and restart the loop.
6847                          */
6848                         if (reset_again) {
6849                                 msleep(10);
6850                                 reset_again = 0;
6851                                 continue;
6852                         }
6853
6854                         /* Detect any port errors. */
6855                         if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
6856                                  &reg_data.word0)) {
6857                                 rc = -ENODEV;
6858                                 break;
6859                         }
6860                         if ((bf_get(lpfc_sliport_status_err, &reg_data)) ||
6861                             (rdy_chk >= 1000)) {
6862                                 phba->work_status[0] = readl(
6863                                         phba->sli4_hba.u.if_type2.ERR1regaddr);
6864                                 phba->work_status[1] = readl(
6865                                         phba->sli4_hba.u.if_type2.ERR2regaddr);
6866                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6867                                         "2890 Port Error Detected "
6868                                         "during Port Reset: "
6869                                         "port status reg 0x%x, "
6870                                         "error 1=0x%x, error 2=0x%x\n",
6871                                         reg_data.word0,
6872                                         phba->work_status[0],
6873                                         phba->work_status[1]);
6874                                 rc = -ENODEV;
6875                         }
6876
6877                         /*
6878                          * Terminate the outer loop provided the Port indicated
6879                          * ready within 10 seconds.
6880                          */
6881                         if (rdy_chk < 1000)
6882                                 break;
6883                 }
6884                 /* delay driver action following IF_TYPE_2 function reset */
6885                 msleep(100);
6886                 break;
6887         case LPFC_SLI_INTF_IF_TYPE_1:
6888         default:
6889                 break;
6890         }
6891
6892         /* Catch the not-ready port failure after a port reset. */
6893         if (num_resets >= MAX_IF_TYPE_2_RESETS)
6894                 rc = -ENODEV;
6895
6896         return rc;
6897 }
6898
6899 /**
6900  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6901  * @phba: pointer to lpfc hba data structure.
6902  * @cnt: number of nop mailbox commands to send.
6903  *
6904  * This routine is invoked to send a number @cnt of NOP mailbox command and
6905  * wait for each command to complete.
6906  *
6907  * Return: the number of NOP mailbox command completed.
6908  **/
6909 static int
6910 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6911 {
6912         LPFC_MBOXQ_t *mboxq;
6913         int length, cmdsent;
6914         uint32_t mbox_tmo;
6915         uint32_t rc = 0;
6916         uint32_t shdr_status, shdr_add_status;
6917         union lpfc_sli4_cfg_shdr *shdr;
6918
6919         if (cnt == 0) {
6920                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6921                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6922                 return cnt;
6923         }
6924
6925         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6926         if (!mboxq) {
6927                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6928                                 "2519 Unable to allocate memory for issuing "
6929                                 "NOP mailbox command\n");
6930                 return 0;
6931         }
6932
6933         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6934         length = (sizeof(struct lpfc_mbx_nop) -
6935                   sizeof(struct lpfc_sli4_cfg_mhdr));
6936         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6937                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6938
6939         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6940         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6941                 if (!phba->sli4_hba.intr_enable)
6942                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6943                 else
6944                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6945                 if (rc == MBX_TIMEOUT)
6946                         break;
6947                 /* Check return status */
6948                 shdr = (union lpfc_sli4_cfg_shdr *)
6949                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6950                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6951                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6952                                          &shdr->response);
6953                 if (shdr_status || shdr_add_status || rc) {
6954                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6955                                         "2520 NOP mailbox command failed "
6956                                         "status x%x add_status x%x mbx "
6957                                         "status x%x\n", shdr_status,
6958                                         shdr_add_status, rc);
6959                         break;
6960                 }
6961         }
6962
6963         if (rc != MBX_TIMEOUT)
6964                 mempool_free(mboxq, phba->mbox_mem_pool);
6965
6966         return cmdsent;
6967 }
6968
6969 /**
6970  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6971  * @phba: pointer to lpfc hba data structure.
6972  *
6973  * This routine is invoked to set up the PCI device memory space for device
6974  * with SLI-4 interface spec.
6975  *
6976  * Return codes
6977  *      0 - successful
6978  *      other values - error
6979  **/
6980 static int
6981 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6982 {
6983         struct pci_dev *pdev;
6984         unsigned long bar0map_len, bar1map_len, bar2map_len;
6985         int error = -ENODEV;
6986         uint32_t if_type;
6987
6988         /* Obtain PCI device reference */
6989         if (!phba->pcidev)
6990                 return error;
6991         else
6992                 pdev = phba->pcidev;
6993
6994         /* Set the device DMA mask size */
6995         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6996          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6997                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6998                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6999                         return error;
7000                 }
7001         }
7002
7003         /*
7004          * The BARs and register set definitions and offset locations are
7005          * dependent on the if_type.
7006          */
7007         if (pci_read_config_dword(pdev, LPFC_SLI_INTF,
7008                                   &phba->sli4_hba.sli_intf.word0)) {
7009                 return error;
7010         }
7011
7012         /* There is no SLI3 failback for SLI4 devices. */
7013         if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) !=
7014             LPFC_SLI_INTF_VALID) {
7015                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7016                                 "2894 SLI_INTF reg contents invalid "
7017                                 "sli_intf reg 0x%x\n",
7018                                 phba->sli4_hba.sli_intf.word0);
7019                 return error;
7020         }
7021
7022         if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
7023         /*
7024          * Get the bus address of SLI4 device Bar regions and the
7025          * number of bytes required by each mapping. The mapping of the
7026          * particular PCI BARs regions is dependent on the type of
7027          * SLI4 device.
7028          */
7029         if (pci_resource_start(pdev, 0)) {
7030                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
7031                 bar0map_len = pci_resource_len(pdev, 0);
7032
7033                 /*
7034                  * Map SLI4 PCI Config Space Register base to a kernel virtual
7035                  * addr
7036                  */
7037                 phba->sli4_hba.conf_regs_memmap_p =
7038                         ioremap(phba->pci_bar0_map, bar0map_len);
7039                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7040                         dev_printk(KERN_ERR, &pdev->dev,
7041                                    "ioremap failed for SLI4 PCI config "
7042                                    "registers.\n");
7043                         goto out;
7044                 }
7045                 /* Set up BAR0 PCI config space register memory map */
7046                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7047         } else {
7048                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
7049                 bar0map_len = pci_resource_len(pdev, 1);
7050                 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
7051                         dev_printk(KERN_ERR, &pdev->dev,
7052                            "FATAL - No BAR0 mapping for SLI4, if_type 2\n");
7053                         goto out;
7054                 }
7055                 phba->sli4_hba.conf_regs_memmap_p =
7056                                 ioremap(phba->pci_bar0_map, bar0map_len);
7057                 if (!phba->sli4_hba.conf_regs_memmap_p) {
7058                         dev_printk(KERN_ERR, &pdev->dev,
7059                                 "ioremap failed for SLI4 PCI config "
7060                                 "registers.\n");
7061                                 goto out;
7062                 }
7063                 lpfc_sli4_bar0_register_memmap(phba, if_type);
7064         }
7065
7066         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7067             (pci_resource_start(pdev, 2))) {
7068                 /*
7069                  * Map SLI4 if type 0 HBA Control Register base to a kernel
7070                  * virtual address and setup the registers.
7071                  */
7072                 phba->pci_bar1_map = pci_resource_start(pdev, 2);
7073                 bar1map_len = pci_resource_len(pdev, 2);
7074                 phba->sli4_hba.ctrl_regs_memmap_p =
7075                                 ioremap(phba->pci_bar1_map, bar1map_len);
7076                 if (!phba->sli4_hba.ctrl_regs_memmap_p) {
7077                         dev_printk(KERN_ERR, &pdev->dev,
7078                            "ioremap failed for SLI4 HBA control registers.\n");
7079                         goto out_iounmap_conf;
7080                 }
7081                 lpfc_sli4_bar1_register_memmap(phba);
7082         }
7083
7084         if ((if_type == LPFC_SLI_INTF_IF_TYPE_0) &&
7085             (pci_resource_start(pdev, 4))) {
7086                 /*
7087                  * Map SLI4 if type 0 HBA Doorbell Register base to a kernel
7088                  * virtual address and setup the registers.
7089                  */
7090                 phba->pci_bar2_map = pci_resource_start(pdev, 4);
7091                 bar2map_len = pci_resource_len(pdev, 4);
7092                 phba->sli4_hba.drbl_regs_memmap_p =
7093                                 ioremap(phba->pci_bar2_map, bar2map_len);
7094                 if (!phba->sli4_hba.drbl_regs_memmap_p) {
7095                         dev_printk(KERN_ERR, &pdev->dev,
7096                            "ioremap failed for SLI4 HBA doorbell registers.\n");
7097                         goto out_iounmap_ctrl;
7098                 }
7099                 error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
7100                 if (error)
7101                         goto out_iounmap_all;
7102         }
7103
7104         return 0;
7105
7106 out_iounmap_all:
7107         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7108 out_iounmap_ctrl:
7109         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7110 out_iounmap_conf:
7111         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7112 out:
7113         return error;
7114 }
7115
7116 /**
7117  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
7118  * @phba: pointer to lpfc hba data structure.
7119  *
7120  * This routine is invoked to unset the PCI device memory space for device
7121  * with SLI-4 interface spec.
7122  **/
7123 static void
7124 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
7125 {
7126         struct pci_dev *pdev;
7127
7128         /* Obtain PCI device reference */
7129         if (!phba->pcidev)
7130                 return;
7131         else
7132                 pdev = phba->pcidev;
7133
7134         /* Free coherent DMA memory allocated */
7135
7136         /* Unmap I/O memory space */
7137         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
7138         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
7139         iounmap(phba->sli4_hba.conf_regs_memmap_p);
7140
7141         return;
7142 }
7143
7144 /**
7145  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
7146  * @phba: pointer to lpfc hba data structure.
7147  *
7148  * This routine is invoked to enable the MSI-X interrupt vectors to device
7149  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
7150  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
7151  * invoked, enables either all or nothing, depending on the current
7152  * availability of PCI vector resources. The device driver is responsible
7153  * for calling the individual request_irq() to register each MSI-X vector
7154  * with a interrupt handler, which is done in this function. Note that
7155  * later when device is unloading, the driver should always call free_irq()
7156  * on all MSI-X vectors it has done request_irq() on before calling
7157  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
7158  * will be left with MSI-X enabled and leaks its vectors.
7159  *
7160  * Return codes
7161  *   0 - successful
7162  *   other values - error
7163  **/
7164 static int
7165 lpfc_sli_enable_msix(struct lpfc_hba *phba)
7166 {
7167         int rc, i;
7168         LPFC_MBOXQ_t *pmb;
7169
7170         /* Set up MSI-X multi-message vectors */
7171         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7172                 phba->msix_entries[i].entry = i;
7173
7174         /* Configure MSI-X capability structure */
7175         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
7176                                 ARRAY_SIZE(phba->msix_entries));
7177         if (rc) {
7178                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7179                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
7180                 goto msi_fail_out;
7181         }
7182         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7183                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7184                                 "0477 MSI-X entry[%d]: vector=x%x "
7185                                 "message=%d\n", i,
7186                                 phba->msix_entries[i].vector,
7187                                 phba->msix_entries[i].entry);
7188         /*
7189          * Assign MSI-X vectors to interrupt handlers
7190          */
7191
7192         /* vector-0 is associated to slow-path handler */
7193         rc = request_irq(phba->msix_entries[0].vector,
7194                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
7195                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
7196         if (rc) {
7197                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7198                                 "0421 MSI-X slow-path request_irq failed "
7199                                 "(%d)\n", rc);
7200                 goto msi_fail_out;
7201         }
7202
7203         /* vector-1 is associated to fast-path handler */
7204         rc = request_irq(phba->msix_entries[1].vector,
7205                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
7206                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
7207
7208         if (rc) {
7209                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7210                                 "0429 MSI-X fast-path request_irq failed "
7211                                 "(%d)\n", rc);
7212                 goto irq_fail_out;
7213         }
7214
7215         /*
7216          * Configure HBA MSI-X attention conditions to messages
7217          */
7218         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
7219
7220         if (!pmb) {
7221                 rc = -ENOMEM;
7222                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7223                                 "0474 Unable to allocate memory for issuing "
7224                                 "MBOX_CONFIG_MSI command\n");
7225                 goto mem_fail_out;
7226         }
7227         rc = lpfc_config_msi(phba, pmb);
7228         if (rc)
7229                 goto mbx_fail_out;
7230         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
7231         if (rc != MBX_SUCCESS) {
7232                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
7233                                 "0351 Config MSI mailbox command failed, "
7234                                 "mbxCmd x%x, mbxStatus x%x\n",
7235                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
7236                 goto mbx_fail_out;
7237         }
7238
7239         /* Free memory allocated for mailbox command */
7240         mempool_free(pmb, phba->mbox_mem_pool);
7241         return rc;
7242
7243 mbx_fail_out:
7244         /* Free memory allocated for mailbox command */
7245         mempool_free(pmb, phba->mbox_mem_pool);
7246
7247 mem_fail_out:
7248         /* free the irq already requested */
7249         free_irq(phba->msix_entries[1].vector, phba);
7250
7251 irq_fail_out:
7252         /* free the irq already requested */
7253         free_irq(phba->msix_entries[0].vector, phba);
7254
7255 msi_fail_out:
7256         /* Unconfigure MSI-X capability structure */
7257         pci_disable_msix(phba->pcidev);
7258         return rc;
7259 }
7260
7261 /**
7262  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
7263  * @phba: pointer to lpfc hba data structure.
7264  *
7265  * This routine is invoked to release the MSI-X vectors and then disable the
7266  * MSI-X interrupt mode to device with SLI-3 interface spec.
7267  **/
7268 static void
7269 lpfc_sli_disable_msix(struct lpfc_hba *phba)
7270 {
7271         int i;
7272
7273         /* Free up MSI-X multi-message vectors */
7274         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
7275                 free_irq(phba->msix_entries[i].vector, phba);
7276         /* Disable MSI-X */
7277         pci_disable_msix(phba->pcidev);
7278
7279         return;
7280 }
7281
7282 /**
7283  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
7284  * @phba: pointer to lpfc hba data structure.
7285  *
7286  * This routine is invoked to enable the MSI interrupt mode to device with
7287  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
7288  * enable the MSI vector. The device driver is responsible for calling the
7289  * request_irq() to register MSI vector with a interrupt the handler, which
7290  * is done in this function.
7291  *
7292  * Return codes
7293  *      0 - successful
7294  *      other values - error
7295  */
7296 static int
7297 lpfc_sli_enable_msi(struct lpfc_hba *phba)
7298 {
7299         int rc;
7300
7301         rc = pci_enable_msi(phba->pcidev);
7302         if (!rc)
7303                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7304                                 "0462 PCI enable MSI mode success.\n");
7305         else {
7306                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7307                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
7308                 return rc;
7309         }
7310
7311         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7312                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7313         if (rc) {
7314                 pci_disable_msi(phba->pcidev);
7315                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7316                                 "0478 MSI request_irq failed (%d)\n", rc);
7317         }
7318         return rc;
7319 }
7320
7321 /**
7322  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
7323  * @phba: pointer to lpfc hba data structure.
7324  *
7325  * This routine is invoked to disable the MSI interrupt mode to device with
7326  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
7327  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7328  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7329  * its vector.
7330  */
7331 static void
7332 lpfc_sli_disable_msi(struct lpfc_hba *phba)
7333 {
7334         free_irq(phba->pcidev->irq, phba);
7335         pci_disable_msi(phba->pcidev);
7336         return;
7337 }
7338
7339 /**
7340  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
7341  * @phba: pointer to lpfc hba data structure.
7342  *
7343  * This routine is invoked to enable device interrupt and associate driver's
7344  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
7345  * spec. Depends on the interrupt mode configured to the driver, the driver
7346  * will try to fallback from the configured interrupt mode to an interrupt
7347  * mode which is supported by the platform, kernel, and device in the order
7348  * of:
7349  * MSI-X -> MSI -> IRQ.
7350  *
7351  * Return codes
7352  *   0 - successful
7353  *   other values - error
7354  **/
7355 static uint32_t
7356 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7357 {
7358         uint32_t intr_mode = LPFC_INTR_ERROR;
7359         int retval;
7360
7361         if (cfg_mode == 2) {
7362                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
7363                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
7364                 if (!retval) {
7365                         /* Now, try to enable MSI-X interrupt mode */
7366                         retval = lpfc_sli_enable_msix(phba);
7367                         if (!retval) {
7368                                 /* Indicate initialization to MSI-X mode */
7369                                 phba->intr_type = MSIX;
7370                                 intr_mode = 2;
7371                         }
7372                 }
7373         }
7374
7375         /* Fallback to MSI if MSI-X initialization failed */
7376         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7377                 retval = lpfc_sli_enable_msi(phba);
7378                 if (!retval) {
7379                         /* Indicate initialization to MSI mode */
7380                         phba->intr_type = MSI;
7381                         intr_mode = 1;
7382                 }
7383         }
7384
7385         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7386         if (phba->intr_type == NONE) {
7387                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
7388                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7389                 if (!retval) {
7390                         /* Indicate initialization to INTx mode */
7391                         phba->intr_type = INTx;
7392                         intr_mode = 0;
7393                 }
7394         }
7395         return intr_mode;
7396 }
7397
7398 /**
7399  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
7400  * @phba: pointer to lpfc hba data structure.
7401  *
7402  * This routine is invoked to disable device interrupt and disassociate the
7403  * driver's interrupt handler(s) from interrupt vector(s) to device with
7404  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
7405  * release the interrupt vector(s) for the message signaled interrupt.
7406  **/
7407 static void
7408 lpfc_sli_disable_intr(struct lpfc_hba *phba)
7409 {
7410         /* Disable the currently initialized interrupt mode */
7411         if (phba->intr_type == MSIX)
7412                 lpfc_sli_disable_msix(phba);
7413         else if (phba->intr_type == MSI)
7414                 lpfc_sli_disable_msi(phba);
7415         else if (phba->intr_type == INTx)
7416                 free_irq(phba->pcidev->irq, phba);
7417
7418         /* Reset interrupt management states */
7419         phba->intr_type = NONE;
7420         phba->sli.slistat.sli_intr = 0;
7421
7422         return;
7423 }
7424
7425 /**
7426  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
7427  * @phba: pointer to lpfc hba data structure.
7428  *
7429  * This routine is invoked to enable the MSI-X interrupt vectors to device
7430  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
7431  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
7432  * enables either all or nothing, depending on the current availability of
7433  * PCI vector resources. The device driver is responsible for calling the
7434  * individual request_irq() to register each MSI-X vector with a interrupt
7435  * handler, which is done in this function. Note that later when device is
7436  * unloading, the driver should always call free_irq() on all MSI-X vectors
7437  * it has done request_irq() on before calling pci_disable_msix(). Failure
7438  * to do so results in a BUG_ON() and a device will be left with MSI-X
7439  * enabled and leaks its vectors.
7440  *
7441  * Return codes
7442  * 0 - successful
7443  * other values - error
7444  **/
7445 static int
7446 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
7447 {
7448         int vectors, rc, index;
7449
7450         /* Set up MSI-X multi-message vectors */
7451         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
7452                 phba->sli4_hba.msix_entries[index].entry = index;
7453
7454         /* Configure MSI-X capability structure */
7455         vectors = phba->sli4_hba.cfg_eqn;
7456 enable_msix_vectors:
7457         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
7458                              vectors);
7459         if (rc > 1) {
7460                 vectors = rc;
7461                 goto enable_msix_vectors;
7462         } else if (rc) {
7463                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7464                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
7465                 goto msi_fail_out;
7466         }
7467
7468         /* Log MSI-X vector assignment */
7469         for (index = 0; index < vectors; index++)
7470                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7471                                 "0489 MSI-X entry[%d]: vector=x%x "
7472                                 "message=%d\n", index,
7473                                 phba->sli4_hba.msix_entries[index].vector,
7474                                 phba->sli4_hba.msix_entries[index].entry);
7475         /*
7476          * Assign MSI-X vectors to interrupt handlers
7477          */
7478         if (vectors > 1)
7479                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7480                                  &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
7481                                  LPFC_SP_DRIVER_HANDLER_NAME, phba);
7482         else
7483                 /* All Interrupts need to be handled by one EQ */
7484                 rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
7485                                  &lpfc_sli4_intr_handler, IRQF_SHARED,
7486                                  LPFC_DRIVER_NAME, phba);
7487         if (rc) {
7488                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7489                                 "0485 MSI-X slow-path request_irq failed "
7490                                 "(%d)\n", rc);
7491                 goto msi_fail_out;
7492         }
7493
7494         /* The rest of the vector(s) are associated to fast-path handler(s) */
7495         for (index = 1; index < vectors; index++) {
7496                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7497                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7498                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7499                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7500                                  LPFC_FP_DRIVER_HANDLER_NAME,
7501                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7502                 if (rc) {
7503                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7504                                         "0486 MSI-X fast-path (%d) "
7505                                         "request_irq failed (%d)\n", index, rc);
7506                         goto cfg_fail_out;
7507                 }
7508         }
7509         phba->sli4_hba.msix_vec_nr = vectors;
7510
7511         return rc;
7512
7513 cfg_fail_out:
7514         /* free the irq already requested */
7515         for (--index; index >= 1; index--)
7516                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7517                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7518
7519         /* free the irq already requested */
7520         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7521
7522 msi_fail_out:
7523         /* Unconfigure MSI-X capability structure */
7524         pci_disable_msix(phba->pcidev);
7525         return rc;
7526 }
7527
7528 /**
7529  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7530  * @phba: pointer to lpfc hba data structure.
7531  *
7532  * This routine is invoked to release the MSI-X vectors and then disable the
7533  * MSI-X interrupt mode to device with SLI-4 interface spec.
7534  **/
7535 static void
7536 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7537 {
7538         int index;
7539
7540         /* Free up MSI-X multi-message vectors */
7541         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7542
7543         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7544                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7545                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7546
7547         /* Disable MSI-X */
7548         pci_disable_msix(phba->pcidev);
7549
7550         return;
7551 }
7552
7553 /**
7554  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7555  * @phba: pointer to lpfc hba data structure.
7556  *
7557  * This routine is invoked to enable the MSI interrupt mode to device with
7558  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7559  * to enable the MSI vector. The device driver is responsible for calling
7560  * the request_irq() to register MSI vector with a interrupt the handler,
7561  * which is done in this function.
7562  *
7563  * Return codes
7564  *      0 - successful
7565  *      other values - error
7566  **/
7567 static int
7568 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7569 {
7570         int rc, index;
7571
7572         rc = pci_enable_msi(phba->pcidev);
7573         if (!rc)
7574                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7575                                 "0487 PCI enable MSI mode success.\n");
7576         else {
7577                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7578                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7579                 return rc;
7580         }
7581
7582         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7583                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7584         if (rc) {
7585                 pci_disable_msi(phba->pcidev);
7586                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7587                                 "0490 MSI request_irq failed (%d)\n", rc);
7588                 return rc;
7589         }
7590
7591         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7592                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7593                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7594         }
7595
7596         return 0;
7597 }
7598
7599 /**
7600  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7601  * @phba: pointer to lpfc hba data structure.
7602  *
7603  * This routine is invoked to disable the MSI interrupt mode to device with
7604  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7605  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7606  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7607  * its vector.
7608  **/
7609 static void
7610 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7611 {
7612         free_irq(phba->pcidev->irq, phba);
7613         pci_disable_msi(phba->pcidev);
7614         return;
7615 }
7616
7617 /**
7618  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7619  * @phba: pointer to lpfc hba data structure.
7620  *
7621  * This routine is invoked to enable device interrupt and associate driver's
7622  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7623  * interface spec. Depends on the interrupt mode configured to the driver,
7624  * the driver will try to fallback from the configured interrupt mode to an
7625  * interrupt mode which is supported by the platform, kernel, and device in
7626  * the order of:
7627  * MSI-X -> MSI -> IRQ.
7628  *
7629  * Return codes
7630  *      0 - successful
7631  *      other values - error
7632  **/
7633 static uint32_t
7634 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7635 {
7636         uint32_t intr_mode = LPFC_INTR_ERROR;
7637         int retval, index;
7638
7639         if (cfg_mode == 2) {
7640                 /* Preparation before conf_msi mbox cmd */
7641                 retval = 0;
7642                 if (!retval) {
7643                         /* Now, try to enable MSI-X interrupt mode */
7644                         retval = lpfc_sli4_enable_msix(phba);
7645                         if (!retval) {
7646                                 /* Indicate initialization to MSI-X mode */
7647                                 phba->intr_type = MSIX;
7648                                 intr_mode = 2;
7649                         }
7650                 }
7651         }
7652
7653         /* Fallback to MSI if MSI-X initialization failed */
7654         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7655                 retval = lpfc_sli4_enable_msi(phba);
7656                 if (!retval) {
7657                         /* Indicate initialization to MSI mode */
7658                         phba->intr_type = MSI;
7659                         intr_mode = 1;
7660                 }
7661         }
7662
7663         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7664         if (phba->intr_type == NONE) {
7665                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7666                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7667                 if (!retval) {
7668                         /* Indicate initialization to INTx mode */
7669                         phba->intr_type = INTx;
7670                         intr_mode = 0;
7671                         for (index = 0; index < phba->cfg_fcp_eq_count;
7672                              index++) {
7673                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7674                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7675                         }
7676                 }
7677         }
7678         return intr_mode;
7679 }
7680
7681 /**
7682  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7683  * @phba: pointer to lpfc hba data structure.
7684  *
7685  * This routine is invoked to disable device interrupt and disassociate
7686  * the driver's interrupt handler(s) from interrupt vector(s) to device
7687  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7688  * will release the interrupt vector(s) for the message signaled interrupt.
7689  **/
7690 static void
7691 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7692 {
7693         /* Disable the currently initialized interrupt mode */
7694         if (phba->intr_type == MSIX)
7695                 lpfc_sli4_disable_msix(phba);
7696         else if (phba->intr_type == MSI)
7697                 lpfc_sli4_disable_msi(phba);
7698         else if (phba->intr_type == INTx)
7699                 free_irq(phba->pcidev->irq, phba);
7700
7701         /* Reset interrupt management states */
7702         phba->intr_type = NONE;
7703         phba->sli.slistat.sli_intr = 0;
7704
7705         return;
7706 }
7707
7708 /**
7709  * lpfc_unset_hba - Unset SLI3 hba device initialization
7710  * @phba: pointer to lpfc hba data structure.
7711  *
7712  * This routine is invoked to unset the HBA device initialization steps to
7713  * a device with SLI-3 interface spec.
7714  **/
7715 static void
7716 lpfc_unset_hba(struct lpfc_hba *phba)
7717 {
7718         struct lpfc_vport *vport = phba->pport;
7719         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7720
7721         spin_lock_irq(shost->host_lock);
7722         vport->load_flag |= FC_UNLOADING;
7723         spin_unlock_irq(shost->host_lock);
7724
7725         lpfc_stop_hba_timers(phba);
7726
7727         phba->pport->work_port_events = 0;
7728
7729         lpfc_sli_hba_down(phba);
7730
7731         lpfc_sli_brdrestart(phba);
7732
7733         lpfc_sli_disable_intr(phba);
7734
7735         return;
7736 }
7737
7738 /**
7739  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7740  * @phba: pointer to lpfc hba data structure.
7741  *
7742  * This routine is invoked to unset the HBA device initialization steps to
7743  * a device with SLI-4 interface spec.
7744  **/
7745 static void
7746 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7747 {
7748         struct lpfc_vport *vport = phba->pport;
7749         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7750
7751         spin_lock_irq(shost->host_lock);
7752         vport->load_flag |= FC_UNLOADING;
7753         spin_unlock_irq(shost->host_lock);
7754
7755         phba->pport->work_port_events = 0;
7756
7757         /* Stop the SLI4 device port */
7758         lpfc_stop_port(phba);
7759
7760         lpfc_sli4_disable_intr(phba);
7761
7762         /* Reset SLI4 HBA FCoE function */
7763         lpfc_pci_function_reset(phba);
7764
7765         return;
7766 }
7767
7768 /**
7769  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7770  * @phba: Pointer to HBA context object.
7771  *
7772  * This function is called in the SLI4 code path to wait for completion
7773  * of device's XRIs exchange busy. It will check the XRI exchange busy
7774  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7775  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7776  * I/Os every 30 seconds, log error message, and wait forever. Only when
7777  * all XRI exchange busy complete, the driver unload shall proceed with
7778  * invoking the function reset ioctl mailbox command to the CNA and the
7779  * the rest of the driver unload resource release.
7780  **/
7781 static void
7782 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7783 {
7784         int wait_time = 0;
7785         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7786         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7787
7788         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7789                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7790                         if (!fcp_xri_cmpl)
7791                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7792                                                 "2877 FCP XRI exchange busy "
7793                                                 "wait time: %d seconds.\n",
7794                                                 wait_time/1000);
7795                         if (!els_xri_cmpl)
7796                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7797                                                 "2878 ELS XRI exchange busy "
7798                                                 "wait time: %d seconds.\n",
7799                                                 wait_time/1000);
7800                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7801                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7802                 } else {
7803                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7804                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7805                 }
7806                 fcp_xri_cmpl =
7807                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7808                 els_xri_cmpl =
7809                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7810         }
7811 }
7812
7813 /**
7814  * lpfc_sli4_hba_unset - Unset the fcoe hba
7815  * @phba: Pointer to HBA context object.
7816  *
7817  * This function is called in the SLI4 code path to reset the HBA's FCoE
7818  * function. The caller is not required to hold any lock. This routine
7819  * issues PCI function reset mailbox command to reset the FCoE function.
7820  * At the end of the function, it calls lpfc_hba_down_post function to
7821  * free any pending commands.
7822  **/
7823 static void
7824 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7825 {
7826         int wait_cnt = 0;
7827         LPFC_MBOXQ_t *mboxq;
7828
7829         lpfc_stop_hba_timers(phba);
7830         phba->sli4_hba.intr_enable = 0;
7831
7832         /*
7833          * Gracefully wait out the potential current outstanding asynchronous
7834          * mailbox command.
7835          */
7836
7837         /* First, block any pending async mailbox command from posted */
7838         spin_lock_irq(&phba->hbalock);
7839         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7840         spin_unlock_irq(&phba->hbalock);
7841         /* Now, trying to wait it out if we can */
7842         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7843                 msleep(10);
7844                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7845                         break;
7846         }
7847         /* Forcefully release the outstanding mailbox command if timed out */
7848         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7849                 spin_lock_irq(&phba->hbalock);
7850                 mboxq = phba->sli.mbox_active;
7851                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7852                 __lpfc_mbox_cmpl_put(phba, mboxq);
7853                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7854                 phba->sli.mbox_active = NULL;
7855                 spin_unlock_irq(&phba->hbalock);
7856         }
7857
7858         /* Abort all iocbs associated with the hba */
7859         lpfc_sli_hba_iocb_abort(phba);
7860
7861         /* Wait for completion of device XRI exchange busy */
7862         lpfc_sli4_xri_exchange_busy_wait(phba);
7863
7864         /* Disable PCI subsystem interrupt */
7865         lpfc_sli4_disable_intr(phba);
7866
7867         /* Stop kthread signal shall trigger work_done one more time */
7868         kthread_stop(phba->worker_thread);
7869
7870         /* Reset SLI4 HBA FCoE function */
7871         lpfc_pci_function_reset(phba);
7872
7873         /* Stop the SLI4 device port */
7874         phba->pport->work_port_events = 0;
7875 }
7876
7877  /**
7878  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7879  * @phba: Pointer to HBA context object.
7880  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7881  *
7882  * This function is called in the SLI4 code path to read the port's
7883  * sli4 capabilities.
7884  *
7885  * This function may be be called from any context that can block-wait
7886  * for the completion.  The expectation is that this routine is called
7887  * typically from probe_one or from the online routine.
7888  **/
7889 int
7890 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7891 {
7892         int rc;
7893         struct lpfc_mqe *mqe;
7894         struct lpfc_pc_sli4_params *sli4_params;
7895         uint32_t mbox_tmo;
7896
7897         rc = 0;
7898         mqe = &mboxq->u.mqe;
7899
7900         /* Read the port's SLI4 Parameters port capabilities */
7901         lpfc_pc_sli4_params(mboxq);
7902         if (!phba->sli4_hba.intr_enable)
7903                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7904         else {
7905                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7906                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7907         }
7908
7909         if (unlikely(rc))
7910                 return 1;
7911
7912         sli4_params = &phba->sli4_hba.pc_sli4_params;
7913         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7914         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7915         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7916         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7917                                              &mqe->un.sli4_params);
7918         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7919                                              &mqe->un.sli4_params);
7920         sli4_params->proto_types = mqe->un.sli4_params.word3;
7921         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7922         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7923         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7924         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7925         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7926         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7927         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7928         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7929         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7930         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7931         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7932         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7933         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7934         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7935         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7936         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7937         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7938         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7939         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7940         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7941
7942         /* Make sure that sge_supp_len can be handled by the driver */
7943         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
7944                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
7945
7946         return rc;
7947 }
7948
7949 /**
7950  * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS.
7951  * @phba: Pointer to HBA context object.
7952  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7953  *
7954  * This function is called in the SLI4 code path to read the port's
7955  * sli4 capabilities.
7956  *
7957  * This function may be be called from any context that can block-wait
7958  * for the completion.  The expectation is that this routine is called
7959  * typically from probe_one or from the online routine.
7960  **/
7961 int
7962 lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7963 {
7964         int rc;
7965         struct lpfc_mqe *mqe = &mboxq->u.mqe;
7966         struct lpfc_pc_sli4_params *sli4_params;
7967         int length;
7968         struct lpfc_sli4_parameters *mbx_sli4_parameters;
7969
7970         /* Read the port's SLI4 Config Parameters */
7971         length = (sizeof(struct lpfc_mbx_get_sli4_parameters) -
7972                   sizeof(struct lpfc_sli4_cfg_mhdr));
7973         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
7974                          LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS,
7975                          length, LPFC_SLI4_MBX_EMBED);
7976         if (!phba->sli4_hba.intr_enable)
7977                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7978         else
7979                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq,
7980                         lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG));
7981         if (unlikely(rc))
7982                 return rc;
7983         sli4_params = &phba->sli4_hba.pc_sli4_params;
7984         mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters;
7985         sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters);
7986         sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters);
7987         sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters);
7988         sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1,
7989                                              mbx_sli4_parameters);
7990         sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2,
7991                                              mbx_sli4_parameters);
7992         if (bf_get(cfg_phwq, mbx_sli4_parameters))
7993                 phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED;
7994         else
7995                 phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
7996         sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
7997         sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
7998         sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
7999         sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
8000         sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
8001         sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters);
8002         sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt,
8003                                             mbx_sli4_parameters);
8004         sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align,
8005                                            mbx_sli4_parameters);
8006
8007         /* Make sure that sge_supp_len can be handled by the driver */
8008         if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE)
8009                 sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE;
8010
8011         return 0;
8012 }
8013
8014 /**
8015  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
8016  * @pdev: pointer to PCI device
8017  * @pid: pointer to PCI device identifier
8018  *
8019  * This routine is to be called to attach a device with SLI-3 interface spec
8020  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8021  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8022  * information of the device and driver to see if the driver state that it can
8023  * support this kind of device. If the match is successful, the driver core
8024  * invokes this routine. If this routine determines it can claim the HBA, it
8025  * does all the initialization that it needs to do to handle the HBA properly.
8026  *
8027  * Return code
8028  *      0 - driver can claim the device
8029  *      negative value - driver can not claim the device
8030  **/
8031 static int __devinit
8032 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
8033 {
8034         struct lpfc_hba   *phba;
8035         struct lpfc_vport *vport = NULL;
8036         struct Scsi_Host  *shost = NULL;
8037         int error;
8038         uint32_t cfg_mode, intr_mode;
8039
8040         /* Allocate memory for HBA structure */
8041         phba = lpfc_hba_alloc(pdev);
8042         if (!phba)
8043                 return -ENOMEM;
8044
8045         /* Perform generic PCI device enabling operation */
8046         error = lpfc_enable_pci_dev(phba);
8047         if (error) {
8048                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8049                                 "1401 Failed to enable pci device.\n");
8050                 goto out_free_phba;
8051         }
8052
8053         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
8054         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
8055         if (error)
8056                 goto out_disable_pci_dev;
8057
8058         /* Set up SLI-3 specific device PCI memory space */
8059         error = lpfc_sli_pci_mem_setup(phba);
8060         if (error) {
8061                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8062                                 "1402 Failed to set up pci memory space.\n");
8063                 goto out_disable_pci_dev;
8064         }
8065
8066         /* Set up phase-1 common device driver resources */
8067         error = lpfc_setup_driver_resource_phase1(phba);
8068         if (error) {
8069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8070                                 "1403 Failed to set up driver resource.\n");
8071                 goto out_unset_pci_mem_s3;
8072         }
8073
8074         /* Set up SLI-3 specific device driver resources */
8075         error = lpfc_sli_driver_resource_setup(phba);
8076         if (error) {
8077                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8078                                 "1404 Failed to set up driver resource.\n");
8079                 goto out_unset_pci_mem_s3;
8080         }
8081
8082         /* Initialize and populate the iocb list per host */
8083         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
8084         if (error) {
8085                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8086                                 "1405 Failed to initialize iocb list.\n");
8087                 goto out_unset_driver_resource_s3;
8088         }
8089
8090         /* Set up common device driver resources */
8091         error = lpfc_setup_driver_resource_phase2(phba);
8092         if (error) {
8093                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8094                                 "1406 Failed to set up driver resource.\n");
8095                 goto out_free_iocb_list;
8096         }
8097
8098         /* Create SCSI host to the physical port */
8099         error = lpfc_create_shost(phba);
8100         if (error) {
8101                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8102                                 "1407 Failed to create scsi host.\n");
8103                 goto out_unset_driver_resource;
8104         }
8105
8106         /* Configure sysfs attributes */
8107         vport = phba->pport;
8108         error = lpfc_alloc_sysfs_attr(vport);
8109         if (error) {
8110                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8111                                 "1476 Failed to allocate sysfs attr\n");
8112                 goto out_destroy_shost;
8113         }
8114
8115         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8116         /* Now, trying to enable interrupt and bring up the device */
8117         cfg_mode = phba->cfg_use_msi;
8118         while (true) {
8119                 /* Put device to a known state before enabling interrupt */
8120                 lpfc_stop_port(phba);
8121                 /* Configure and enable interrupt */
8122                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
8123                 if (intr_mode == LPFC_INTR_ERROR) {
8124                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8125                                         "0431 Failed to enable interrupt.\n");
8126                         error = -ENODEV;
8127                         goto out_free_sysfs_attr;
8128                 }
8129                 /* SLI-3 HBA setup */
8130                 if (lpfc_sli_hba_setup(phba)) {
8131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8132                                         "1477 Failed to set up hba\n");
8133                         error = -ENODEV;
8134                         goto out_remove_device;
8135                 }
8136
8137                 /* Wait 50ms for the interrupts of previous mailbox commands */
8138                 msleep(50);
8139                 /* Check active interrupts on message signaled interrupts */
8140                 if (intr_mode == 0 ||
8141                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
8142                         /* Log the current active interrupt mode */
8143                         phba->intr_mode = intr_mode;
8144                         lpfc_log_intr_mode(phba, intr_mode);
8145                         break;
8146                 } else {
8147                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8148                                         "0447 Configure interrupt mode (%d) "
8149                                         "failed active interrupt test.\n",
8150                                         intr_mode);
8151                         /* Disable the current interrupt mode */
8152                         lpfc_sli_disable_intr(phba);
8153                         /* Try next level of interrupt mode */
8154                         cfg_mode = --intr_mode;
8155                 }
8156         }
8157
8158         /* Perform post initialization setup */
8159         lpfc_post_init_setup(phba);
8160
8161         /* Check if there are static vports to be created. */
8162         lpfc_create_static_vport(phba);
8163
8164         return 0;
8165
8166 out_remove_device:
8167         lpfc_unset_hba(phba);
8168 out_free_sysfs_attr:
8169         lpfc_free_sysfs_attr(vport);
8170 out_destroy_shost:
8171         lpfc_destroy_shost(phba);
8172 out_unset_driver_resource:
8173         lpfc_unset_driver_resource_phase2(phba);
8174 out_free_iocb_list:
8175         lpfc_free_iocb_list(phba);
8176 out_unset_driver_resource_s3:
8177         lpfc_sli_driver_resource_unset(phba);
8178 out_unset_pci_mem_s3:
8179         lpfc_sli_pci_mem_unset(phba);
8180 out_disable_pci_dev:
8181         lpfc_disable_pci_dev(phba);
8182         if (shost)
8183                 scsi_host_put(shost);
8184 out_free_phba:
8185         lpfc_hba_free(phba);
8186         return error;
8187 }
8188
8189 /**
8190  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
8191  * @pdev: pointer to PCI device
8192  *
8193  * This routine is to be called to disattach a device with SLI-3 interface
8194  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
8195  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8196  * device to be removed from the PCI subsystem properly.
8197  **/
8198 static void __devexit
8199 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
8200 {
8201         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
8202         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8203         struct lpfc_vport **vports;
8204         struct lpfc_hba   *phba = vport->phba;
8205         int i;
8206         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
8207
8208         spin_lock_irq(&phba->hbalock);
8209         vport->load_flag |= FC_UNLOADING;
8210         spin_unlock_irq(&phba->hbalock);
8211
8212         lpfc_free_sysfs_attr(vport);
8213
8214         /* Release all the vports against this physical port */
8215         vports = lpfc_create_vport_work_array(phba);
8216         if (vports != NULL)
8217                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8218                         fc_vport_terminate(vports[i]->fc_vport);
8219         lpfc_destroy_vport_work_array(phba, vports);
8220
8221         /* Remove FC host and then SCSI host with the physical port */
8222         fc_remove_host(shost);
8223         scsi_remove_host(shost);
8224         lpfc_cleanup(vport);
8225
8226         /*
8227          * Bring down the SLI Layer. This step disable all interrupts,
8228          * clears the rings, discards all mailbox commands, and resets
8229          * the HBA.
8230          */
8231
8232         /* HBA interrupt will be disabled after this call */
8233         lpfc_sli_hba_down(phba);
8234         /* Stop kthread signal shall trigger work_done one more time */
8235         kthread_stop(phba->worker_thread);
8236         /* Final cleanup of txcmplq and reset the HBA */
8237         lpfc_sli_brdrestart(phba);
8238
8239         lpfc_stop_hba_timers(phba);
8240         spin_lock_irq(&phba->hbalock);
8241         list_del_init(&vport->listentry);
8242         spin_unlock_irq(&phba->hbalock);
8243
8244         lpfc_debugfs_terminate(vport);
8245
8246         /* Disable interrupt */
8247         lpfc_sli_disable_intr(phba);
8248
8249         pci_set_drvdata(pdev, NULL);
8250         scsi_host_put(shost);
8251
8252         /*
8253          * Call scsi_free before mem_free since scsi bufs are released to their
8254          * corresponding pools here.
8255          */
8256         lpfc_scsi_free(phba);
8257         lpfc_mem_free_all(phba);
8258
8259         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
8260                           phba->hbqslimp.virt, phba->hbqslimp.phys);
8261
8262         /* Free resources associated with SLI2 interface */
8263         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
8264                           phba->slim2p.virt, phba->slim2p.phys);
8265
8266         /* unmap adapter SLIM and Control Registers */
8267         iounmap(phba->ctrl_regs_memmap_p);
8268         iounmap(phba->slim_memmap_p);
8269
8270         lpfc_hba_free(phba);
8271
8272         pci_release_selected_regions(pdev, bars);
8273         pci_disable_device(pdev);
8274 }
8275
8276 /**
8277  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
8278  * @pdev: pointer to PCI device
8279  * @msg: power management message
8280  *
8281  * This routine is to be called from the kernel's PCI subsystem to support
8282  * system Power Management (PM) to device with SLI-3 interface spec. When
8283  * PM invokes this method, it quiesces the device by stopping the driver's
8284  * worker thread for the device, turning off device's interrupt and DMA,
8285  * and bring the device offline. Note that as the driver implements the
8286  * minimum PM requirements to a power-aware driver's PM support for the
8287  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8288  * to the suspend() method call will be treated as SUSPEND and the driver will
8289  * fully reinitialize its device during resume() method call, the driver will
8290  * set device to PCI_D3hot state in PCI config space instead of setting it
8291  * according to the @msg provided by the PM.
8292  *
8293  * Return code
8294  *      0 - driver suspended the device
8295  *      Error otherwise
8296  **/
8297 static int
8298 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
8299 {
8300         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8301         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8302
8303         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8304                         "0473 PCI device Power Management suspend.\n");
8305
8306         /* Bring down the device */
8307         lpfc_offline_prep(phba);
8308         lpfc_offline(phba);
8309         kthread_stop(phba->worker_thread);
8310
8311         /* Disable interrupt from device */
8312         lpfc_sli_disable_intr(phba);
8313
8314         /* Save device state to PCI config space */
8315         pci_save_state(pdev);
8316         pci_set_power_state(pdev, PCI_D3hot);
8317
8318         return 0;
8319 }
8320
8321 /**
8322  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
8323  * @pdev: pointer to PCI device
8324  *
8325  * This routine is to be called from the kernel's PCI subsystem to support
8326  * system Power Management (PM) to device with SLI-3 interface spec. When PM
8327  * invokes this method, it restores the device's PCI config space state and
8328  * fully reinitializes the device and brings it online. Note that as the
8329  * driver implements the minimum PM requirements to a power-aware driver's
8330  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
8331  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
8332  * driver will fully reinitialize its device during resume() method call,
8333  * the device will be set to PCI_D0 directly in PCI config space before
8334  * restoring the state.
8335  *
8336  * Return code
8337  *      0 - driver suspended the device
8338  *      Error otherwise
8339  **/
8340 static int
8341 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
8342 {
8343         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8344         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8345         uint32_t intr_mode;
8346         int error;
8347
8348         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8349                         "0452 PCI device Power Management resume.\n");
8350
8351         /* Restore device state from PCI config space */
8352         pci_set_power_state(pdev, PCI_D0);
8353         pci_restore_state(pdev);
8354
8355         /*
8356          * As the new kernel behavior of pci_restore_state() API call clears
8357          * device saved_state flag, need to save the restored state again.
8358          */
8359         pci_save_state(pdev);
8360
8361         if (pdev->is_busmaster)
8362                 pci_set_master(pdev);
8363
8364         /* Startup the kernel thread for this host adapter. */
8365         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8366                                         "lpfc_worker_%d", phba->brd_no);
8367         if (IS_ERR(phba->worker_thread)) {
8368                 error = PTR_ERR(phba->worker_thread);
8369                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8370                                 "0434 PM resume failed to start worker "
8371                                 "thread: error=x%x.\n", error);
8372                 return error;
8373         }
8374
8375         /* Configure and enable interrupt */
8376         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8377         if (intr_mode == LPFC_INTR_ERROR) {
8378                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8379                                 "0430 PM resume Failed to enable interrupt\n");
8380                 return -EIO;
8381         } else
8382                 phba->intr_mode = intr_mode;
8383
8384         /* Restart HBA and bring it online */
8385         lpfc_sli_brdrestart(phba);
8386         lpfc_online(phba);
8387
8388         /* Log the current active interrupt mode */
8389         lpfc_log_intr_mode(phba, phba->intr_mode);
8390
8391         return 0;
8392 }
8393
8394 /**
8395  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
8396  * @phba: pointer to lpfc hba data structure.
8397  *
8398  * This routine is called to prepare the SLI3 device for PCI slot recover. It
8399  * aborts all the outstanding SCSI I/Os to the pci device.
8400  **/
8401 static void
8402 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
8403 {
8404         struct lpfc_sli *psli = &phba->sli;
8405         struct lpfc_sli_ring  *pring;
8406
8407         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8408                         "2723 PCI channel I/O abort preparing for recovery\n");
8409
8410         /*
8411          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8412          * and let the SCSI mid-layer to retry them to recover.
8413          */
8414         pring = &psli->ring[psli->fcp_ring];
8415         lpfc_sli_abort_iocb_ring(phba, pring);
8416 }
8417
8418 /**
8419  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
8420  * @phba: pointer to lpfc hba data structure.
8421  *
8422  * This routine is called to prepare the SLI3 device for PCI slot reset. It
8423  * disables the device interrupt and pci device, and aborts the internal FCP
8424  * pending I/Os.
8425  **/
8426 static void
8427 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
8428 {
8429         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8430                         "2710 PCI channel disable preparing for reset\n");
8431
8432         /* Block any management I/Os to the device */
8433         lpfc_block_mgmt_io(phba);
8434
8435         /* Block all SCSI devices' I/Os on the host */
8436         lpfc_scsi_dev_block(phba);
8437
8438         /* stop all timers */
8439         lpfc_stop_hba_timers(phba);
8440
8441         /* Disable interrupt and pci device */
8442         lpfc_sli_disable_intr(phba);
8443         pci_disable_device(phba->pcidev);
8444
8445         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8446         lpfc_sli_flush_fcp_rings(phba);
8447 }
8448
8449 /**
8450  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
8451  * @phba: pointer to lpfc hba data structure.
8452  *
8453  * This routine is called to prepare the SLI3 device for PCI slot permanently
8454  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8455  * pending I/Os.
8456  **/
8457 static void
8458 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8459 {
8460         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8461                         "2711 PCI channel permanent disable for failure\n");
8462         /* Block all SCSI devices' I/Os on the host */
8463         lpfc_scsi_dev_block(phba);
8464
8465         /* stop all timers */
8466         lpfc_stop_hba_timers(phba);
8467
8468         /* Clean up all driver's outstanding SCSI I/Os */
8469         lpfc_sli_flush_fcp_rings(phba);
8470 }
8471
8472 /**
8473  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
8474  * @pdev: pointer to PCI device.
8475  * @state: the current PCI connection state.
8476  *
8477  * This routine is called from the PCI subsystem for I/O error handling to
8478  * device with SLI-3 interface spec. This function is called by the PCI
8479  * subsystem after a PCI bus error affecting this device has been detected.
8480  * When this function is invoked, it will need to stop all the I/Os and
8481  * interrupt(s) to the device. Once that is done, it will return
8482  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
8483  * as desired.
8484  *
8485  * Return codes
8486  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
8487  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8488  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8489  **/
8490 static pci_ers_result_t
8491 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
8492 {
8493         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8494         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8495
8496         switch (state) {
8497         case pci_channel_io_normal:
8498                 /* Non-fatal error, prepare for recovery */
8499                 lpfc_sli_prep_dev_for_recover(phba);
8500                 return PCI_ERS_RESULT_CAN_RECOVER;
8501         case pci_channel_io_frozen:
8502                 /* Fatal error, prepare for slot reset */
8503                 lpfc_sli_prep_dev_for_reset(phba);
8504                 return PCI_ERS_RESULT_NEED_RESET;
8505         case pci_channel_io_perm_failure:
8506                 /* Permanent failure, prepare for device down */
8507                 lpfc_sli_prep_dev_for_perm_failure(phba);
8508                 return PCI_ERS_RESULT_DISCONNECT;
8509         default:
8510                 /* Unknown state, prepare and request slot reset */
8511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8512                                 "0472 Unknown PCI error state: x%x\n", state);
8513                 lpfc_sli_prep_dev_for_reset(phba);
8514                 return PCI_ERS_RESULT_NEED_RESET;
8515         }
8516 }
8517
8518 /**
8519  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
8520  * @pdev: pointer to PCI device.
8521  *
8522  * This routine is called from the PCI subsystem for error handling to
8523  * device with SLI-3 interface spec. This is called after PCI bus has been
8524  * reset to restart the PCI card from scratch, as if from a cold-boot.
8525  * During the PCI subsystem error recovery, after driver returns
8526  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8527  * recovery and then call this routine before calling the .resume method
8528  * to recover the device. This function will initialize the HBA device,
8529  * enable the interrupt, but it will just put the HBA to offline state
8530  * without passing any I/O traffic.
8531  *
8532  * Return codes
8533  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8534  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8535  */
8536 static pci_ers_result_t
8537 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
8538 {
8539         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8540         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8541         struct lpfc_sli *psli = &phba->sli;
8542         uint32_t intr_mode;
8543
8544         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8545         if (pci_enable_device_mem(pdev)) {
8546                 printk(KERN_ERR "lpfc: Cannot re-enable "
8547                         "PCI device after reset.\n");
8548                 return PCI_ERS_RESULT_DISCONNECT;
8549         }
8550
8551         pci_restore_state(pdev);
8552
8553         /*
8554          * As the new kernel behavior of pci_restore_state() API call clears
8555          * device saved_state flag, need to save the restored state again.
8556          */
8557         pci_save_state(pdev);
8558
8559         if (pdev->is_busmaster)
8560                 pci_set_master(pdev);
8561
8562         spin_lock_irq(&phba->hbalock);
8563         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8564         spin_unlock_irq(&phba->hbalock);
8565
8566         /* Configure and enable interrupt */
8567         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8568         if (intr_mode == LPFC_INTR_ERROR) {
8569                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8570                                 "0427 Cannot re-enable interrupt after "
8571                                 "slot reset.\n");
8572                 return PCI_ERS_RESULT_DISCONNECT;
8573         } else
8574                 phba->intr_mode = intr_mode;
8575
8576         /* Take device offline, it will perform cleanup */
8577         lpfc_offline_prep(phba);
8578         lpfc_offline(phba);
8579         lpfc_sli_brdrestart(phba);
8580
8581         /* Log the current active interrupt mode */
8582         lpfc_log_intr_mode(phba, phba->intr_mode);
8583
8584         return PCI_ERS_RESULT_RECOVERED;
8585 }
8586
8587 /**
8588  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8589  * @pdev: pointer to PCI device
8590  *
8591  * This routine is called from the PCI subsystem for error handling to device
8592  * with SLI-3 interface spec. It is called when kernel error recovery tells
8593  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8594  * error recovery. After this call, traffic can start to flow from this device
8595  * again.
8596  */
8597 static void
8598 lpfc_io_resume_s3(struct pci_dev *pdev)
8599 {
8600         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8601         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8602
8603         /* Bring device online, it will be no-op for non-fatal error resume */
8604         lpfc_online(phba);
8605
8606         /* Clean up Advanced Error Reporting (AER) if needed */
8607         if (phba->hba_flag & HBA_AER_ENABLED)
8608                 pci_cleanup_aer_uncorrect_error_status(pdev);
8609 }
8610
8611 /**
8612  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8613  * @phba: pointer to lpfc hba data structure.
8614  *
8615  * returns the number of ELS/CT IOCBs to reserve
8616  **/
8617 int
8618 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8619 {
8620         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8621
8622         if (phba->sli_rev == LPFC_SLI_REV4) {
8623                 if (max_xri <= 100)
8624                         return 10;
8625                 else if (max_xri <= 256)
8626                         return 25;
8627                 else if (max_xri <= 512)
8628                         return 50;
8629                 else if (max_xri <= 1024)
8630                         return 100;
8631                 else
8632                         return 150;
8633         } else
8634                 return 0;
8635 }
8636
8637 /**
8638  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8639  * @pdev: pointer to PCI device
8640  * @pid: pointer to PCI device identifier
8641  *
8642  * This routine is called from the kernel's PCI subsystem to device with
8643  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8644  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8645  * information of the device and driver to see if the driver state that it
8646  * can support this kind of device. If the match is successful, the driver
8647  * core invokes this routine. If this routine determines it can claim the HBA,
8648  * it does all the initialization that it needs to do to handle the HBA
8649  * properly.
8650  *
8651  * Return code
8652  *      0 - driver can claim the device
8653  *      negative value - driver can not claim the device
8654  **/
8655 static int __devinit
8656 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8657 {
8658         struct lpfc_hba   *phba;
8659         struct lpfc_vport *vport = NULL;
8660         struct Scsi_Host  *shost = NULL;
8661         int error;
8662         uint32_t cfg_mode, intr_mode;
8663         int mcnt;
8664         int adjusted_fcp_eq_count;
8665         int fcp_qidx;
8666
8667         /* Allocate memory for HBA structure */
8668         phba = lpfc_hba_alloc(pdev);
8669         if (!phba)
8670                 return -ENOMEM;
8671
8672         /* Perform generic PCI device enabling operation */
8673         error = lpfc_enable_pci_dev(phba);
8674         if (error) {
8675                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8676                                 "1409 Failed to enable pci device.\n");
8677                 goto out_free_phba;
8678         }
8679
8680         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8681         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8682         if (error)
8683                 goto out_disable_pci_dev;
8684
8685         /* Set up SLI-4 specific device PCI memory space */
8686         error = lpfc_sli4_pci_mem_setup(phba);
8687         if (error) {
8688                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8689                                 "1410 Failed to set up pci memory space.\n");
8690                 goto out_disable_pci_dev;
8691         }
8692
8693         /* Set up phase-1 common device driver resources */
8694         error = lpfc_setup_driver_resource_phase1(phba);
8695         if (error) {
8696                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8697                                 "1411 Failed to set up driver resource.\n");
8698                 goto out_unset_pci_mem_s4;
8699         }
8700
8701         /* Set up SLI-4 Specific device driver resources */
8702         error = lpfc_sli4_driver_resource_setup(phba);
8703         if (error) {
8704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8705                                 "1412 Failed to set up driver resource.\n");
8706                 goto out_unset_pci_mem_s4;
8707         }
8708
8709         /* Initialize and populate the iocb list per host */
8710
8711         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8712                         "2821 initialize iocb list %d.\n",
8713                         phba->cfg_iocb_cnt*1024);
8714         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8715
8716         if (error) {
8717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8718                                 "1413 Failed to initialize iocb list.\n");
8719                 goto out_unset_driver_resource_s4;
8720         }
8721
8722         INIT_LIST_HEAD(&phba->active_rrq_list);
8723
8724         /* Set up common device driver resources */
8725         error = lpfc_setup_driver_resource_phase2(phba);
8726         if (error) {
8727                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8728                                 "1414 Failed to set up driver resource.\n");
8729                 goto out_free_iocb_list;
8730         }
8731
8732         /* Create SCSI host to the physical port */
8733         error = lpfc_create_shost(phba);
8734         if (error) {
8735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8736                                 "1415 Failed to create scsi host.\n");
8737                 goto out_unset_driver_resource;
8738         }
8739
8740         /* Configure sysfs attributes */
8741         vport = phba->pport;
8742         error = lpfc_alloc_sysfs_attr(vport);
8743         if (error) {
8744                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8745                                 "1416 Failed to allocate sysfs attr\n");
8746                 goto out_destroy_shost;
8747         }
8748
8749         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8750         /* Now, trying to enable interrupt and bring up the device */
8751         cfg_mode = phba->cfg_use_msi;
8752         while (true) {
8753                 /* Put device to a known state before enabling interrupt */
8754                 lpfc_stop_port(phba);
8755                 /* Configure and enable interrupt */
8756                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8757                 if (intr_mode == LPFC_INTR_ERROR) {
8758                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8759                                         "0426 Failed to enable interrupt.\n");
8760                         error = -ENODEV;
8761                         goto out_free_sysfs_attr;
8762                 }
8763                 /* Default to single EQ for non-MSI-X */
8764                 if (phba->intr_type != MSIX)
8765                         adjusted_fcp_eq_count = 0;
8766                 else if (phba->sli4_hba.msix_vec_nr <
8767                                         phba->cfg_fcp_eq_count + 1)
8768                         adjusted_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8769                 else
8770                         adjusted_fcp_eq_count = phba->cfg_fcp_eq_count;
8771                 /* Free unused EQs */
8772                 for (fcp_qidx = adjusted_fcp_eq_count;
8773                      fcp_qidx < phba->cfg_fcp_eq_count;
8774                      fcp_qidx++) {
8775                         lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
8776                         /* do not delete the first fcp_cq */
8777                         if (fcp_qidx)
8778                                 lpfc_sli4_queue_free(
8779                                         phba->sli4_hba.fcp_cq[fcp_qidx]);
8780                 }
8781                 phba->cfg_fcp_eq_count = adjusted_fcp_eq_count;
8782                 /* Set up SLI-4 HBA */
8783                 if (lpfc_sli4_hba_setup(phba)) {
8784                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8785                                         "1421 Failed to set up hba\n");
8786                         error = -ENODEV;
8787                         goto out_disable_intr;
8788                 }
8789
8790                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8791                 if (intr_mode != 0)
8792                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8793                                                             LPFC_ACT_INTR_CNT);
8794
8795                 /* Check active interrupts received only for MSI/MSI-X */
8796                 if (intr_mode == 0 ||
8797                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8798                         /* Log the current active interrupt mode */
8799                         phba->intr_mode = intr_mode;
8800                         lpfc_log_intr_mode(phba, intr_mode);
8801                         break;
8802                 }
8803                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8804                                 "0451 Configure interrupt mode (%d) "
8805                                 "failed active interrupt test.\n",
8806                                 intr_mode);
8807                 /* Unset the previous SLI-4 HBA setup. */
8808                 /*
8809                  * TODO:  Is this operation compatible with IF TYPE 2
8810                  * devices?  All port state is deleted and cleared.
8811                  */
8812                 lpfc_sli4_unset_hba(phba);
8813                 /* Try next level of interrupt mode */
8814                 cfg_mode = --intr_mode;
8815         }
8816
8817         /* Perform post initialization setup */
8818         lpfc_post_init_setup(phba);
8819
8820         /* Check if there are static vports to be created. */
8821         lpfc_create_static_vport(phba);
8822
8823         return 0;
8824
8825 out_disable_intr:
8826         lpfc_sli4_disable_intr(phba);
8827 out_free_sysfs_attr:
8828         lpfc_free_sysfs_attr(vport);
8829 out_destroy_shost:
8830         lpfc_destroy_shost(phba);
8831 out_unset_driver_resource:
8832         lpfc_unset_driver_resource_phase2(phba);
8833 out_free_iocb_list:
8834         lpfc_free_iocb_list(phba);
8835 out_unset_driver_resource_s4:
8836         lpfc_sli4_driver_resource_unset(phba);
8837 out_unset_pci_mem_s4:
8838         lpfc_sli4_pci_mem_unset(phba);
8839 out_disable_pci_dev:
8840         lpfc_disable_pci_dev(phba);
8841         if (shost)
8842                 scsi_host_put(shost);
8843 out_free_phba:
8844         lpfc_hba_free(phba);
8845         return error;
8846 }
8847
8848 /**
8849  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8850  * @pdev: pointer to PCI device
8851  *
8852  * This routine is called from the kernel's PCI subsystem to device with
8853  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8854  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8855  * device to be removed from the PCI subsystem properly.
8856  **/
8857 static void __devexit
8858 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8859 {
8860         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8861         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8862         struct lpfc_vport **vports;
8863         struct lpfc_hba *phba = vport->phba;
8864         int i;
8865
8866         /* Mark the device unloading flag */
8867         spin_lock_irq(&phba->hbalock);
8868         vport->load_flag |= FC_UNLOADING;
8869         spin_unlock_irq(&phba->hbalock);
8870
8871         /* Free the HBA sysfs attributes */
8872         lpfc_free_sysfs_attr(vport);
8873
8874         /* Release all the vports against this physical port */
8875         vports = lpfc_create_vport_work_array(phba);
8876         if (vports != NULL)
8877                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8878                         fc_vport_terminate(vports[i]->fc_vport);
8879         lpfc_destroy_vport_work_array(phba, vports);
8880
8881         /* Remove FC host and then SCSI host with the physical port */
8882         fc_remove_host(shost);
8883         scsi_remove_host(shost);
8884
8885         /* Perform cleanup on the physical port */
8886         lpfc_cleanup(vport);
8887
8888         /*
8889          * Bring down the SLI Layer. This step disables all interrupts,
8890          * clears the rings, discards all mailbox commands, and resets
8891          * the HBA FCoE function.
8892          */
8893         lpfc_debugfs_terminate(vport);
8894         lpfc_sli4_hba_unset(phba);
8895
8896         spin_lock_irq(&phba->hbalock);
8897         list_del_init(&vport->listentry);
8898         spin_unlock_irq(&phba->hbalock);
8899
8900         /* Perform scsi free before driver resource_unset since scsi
8901          * buffers are released to their corresponding pools here.
8902          */
8903         lpfc_scsi_free(phba);
8904         lpfc_sli4_driver_resource_unset(phba);
8905
8906         /* Unmap adapter Control and Doorbell registers */
8907         lpfc_sli4_pci_mem_unset(phba);
8908
8909         /* Release PCI resources and disable device's PCI function */
8910         scsi_host_put(shost);
8911         lpfc_disable_pci_dev(phba);
8912
8913         /* Finally, free the driver's device data structure */
8914         lpfc_hba_free(phba);
8915
8916         return;
8917 }
8918
8919 /**
8920  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8921  * @pdev: pointer to PCI device
8922  * @msg: power management message
8923  *
8924  * This routine is called from the kernel's PCI subsystem to support system
8925  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8926  * this method, it quiesces the device by stopping the driver's worker
8927  * thread for the device, turning off device's interrupt and DMA, and bring
8928  * the device offline. Note that as the driver implements the minimum PM
8929  * requirements to a power-aware driver's PM support for suspend/resume -- all
8930  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8931  * method call will be treated as SUSPEND and the driver will fully
8932  * reinitialize its device during resume() method call, the driver will set
8933  * device to PCI_D3hot state in PCI config space instead of setting it
8934  * according to the @msg provided by the PM.
8935  *
8936  * Return code
8937  *      0 - driver suspended the device
8938  *      Error otherwise
8939  **/
8940 static int
8941 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8942 {
8943         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8944         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8945
8946         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8947                         "2843 PCI device Power Management suspend.\n");
8948
8949         /* Bring down the device */
8950         lpfc_offline_prep(phba);
8951         lpfc_offline(phba);
8952         kthread_stop(phba->worker_thread);
8953
8954         /* Disable interrupt from device */
8955         lpfc_sli4_disable_intr(phba);
8956
8957         /* Save device state to PCI config space */
8958         pci_save_state(pdev);
8959         pci_set_power_state(pdev, PCI_D3hot);
8960
8961         return 0;
8962 }
8963
8964 /**
8965  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8966  * @pdev: pointer to PCI device
8967  *
8968  * This routine is called from the kernel's PCI subsystem to support system
8969  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8970  * this method, it restores the device's PCI config space state and fully
8971  * reinitializes the device and brings it online. Note that as the driver
8972  * implements the minimum PM requirements to a power-aware driver's PM for
8973  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8974  * to the suspend() method call will be treated as SUSPEND and the driver
8975  * will fully reinitialize its device during resume() method call, the device
8976  * will be set to PCI_D0 directly in PCI config space before restoring the
8977  * state.
8978  *
8979  * Return code
8980  *      0 - driver suspended the device
8981  *      Error otherwise
8982  **/
8983 static int
8984 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8985 {
8986         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8987         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8988         uint32_t intr_mode;
8989         int error;
8990
8991         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8992                         "0292 PCI device Power Management resume.\n");
8993
8994         /* Restore device state from PCI config space */
8995         pci_set_power_state(pdev, PCI_D0);
8996         pci_restore_state(pdev);
8997
8998         /*
8999          * As the new kernel behavior of pci_restore_state() API call clears
9000          * device saved_state flag, need to save the restored state again.
9001          */
9002         pci_save_state(pdev);
9003
9004         if (pdev->is_busmaster)
9005                 pci_set_master(pdev);
9006
9007          /* Startup the kernel thread for this host adapter. */
9008         phba->worker_thread = kthread_run(lpfc_do_work, phba,
9009                                         "lpfc_worker_%d", phba->brd_no);
9010         if (IS_ERR(phba->worker_thread)) {
9011                 error = PTR_ERR(phba->worker_thread);
9012                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9013                                 "0293 PM resume failed to start worker "
9014                                 "thread: error=x%x.\n", error);
9015                 return error;
9016         }
9017
9018         /* Configure and enable interrupt */
9019         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9020         if (intr_mode == LPFC_INTR_ERROR) {
9021                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9022                                 "0294 PM resume Failed to enable interrupt\n");
9023                 return -EIO;
9024         } else
9025                 phba->intr_mode = intr_mode;
9026
9027         /* Restart HBA and bring it online */
9028         lpfc_sli_brdrestart(phba);
9029         lpfc_online(phba);
9030
9031         /* Log the current active interrupt mode */
9032         lpfc_log_intr_mode(phba, phba->intr_mode);
9033
9034         return 0;
9035 }
9036
9037 /**
9038  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
9039  * @phba: pointer to lpfc hba data structure.
9040  *
9041  * This routine is called to prepare the SLI4 device for PCI slot recover. It
9042  * aborts all the outstanding SCSI I/Os to the pci device.
9043  **/
9044 static void
9045 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
9046 {
9047         struct lpfc_sli *psli = &phba->sli;
9048         struct lpfc_sli_ring  *pring;
9049
9050         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9051                         "2828 PCI channel I/O abort preparing for recovery\n");
9052         /*
9053          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
9054          * and let the SCSI mid-layer to retry them to recover.
9055          */
9056         pring = &psli->ring[psli->fcp_ring];
9057         lpfc_sli_abort_iocb_ring(phba, pring);
9058 }
9059
9060 /**
9061  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
9062  * @phba: pointer to lpfc hba data structure.
9063  *
9064  * This routine is called to prepare the SLI4 device for PCI slot reset. It
9065  * disables the device interrupt and pci device, and aborts the internal FCP
9066  * pending I/Os.
9067  **/
9068 static void
9069 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
9070 {
9071         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9072                         "2826 PCI channel disable preparing for reset\n");
9073
9074         /* Block any management I/Os to the device */
9075         lpfc_block_mgmt_io(phba);
9076
9077         /* Block all SCSI devices' I/Os on the host */
9078         lpfc_scsi_dev_block(phba);
9079
9080         /* stop all timers */
9081         lpfc_stop_hba_timers(phba);
9082
9083         /* Disable interrupt and pci device */
9084         lpfc_sli4_disable_intr(phba);
9085         pci_disable_device(phba->pcidev);
9086
9087         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
9088         lpfc_sli_flush_fcp_rings(phba);
9089 }
9090
9091 /**
9092  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
9093  * @phba: pointer to lpfc hba data structure.
9094  *
9095  * This routine is called to prepare the SLI4 device for PCI slot permanently
9096  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
9097  * pending I/Os.
9098  **/
9099 static void
9100 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
9101 {
9102         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9103                         "2827 PCI channel permanent disable for failure\n");
9104
9105         /* Block all SCSI devices' I/Os on the host */
9106         lpfc_scsi_dev_block(phba);
9107
9108         /* stop all timers */
9109         lpfc_stop_hba_timers(phba);
9110
9111         /* Clean up all driver's outstanding SCSI I/Os */
9112         lpfc_sli_flush_fcp_rings(phba);
9113 }
9114
9115 /**
9116  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
9117  * @pdev: pointer to PCI device.
9118  * @state: the current PCI connection state.
9119  *
9120  * This routine is called from the PCI subsystem for error handling to device
9121  * with SLI-4 interface spec. This function is called by the PCI subsystem
9122  * after a PCI bus error affecting this device has been detected. When this
9123  * function is invoked, it will need to stop all the I/Os and interrupt(s)
9124  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
9125  * for the PCI subsystem to perform proper recovery as desired.
9126  *
9127  * Return codes
9128  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9129  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9130  **/
9131 static pci_ers_result_t
9132 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
9133 {
9134         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9135         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9136
9137         switch (state) {
9138         case pci_channel_io_normal:
9139                 /* Non-fatal error, prepare for recovery */
9140                 lpfc_sli4_prep_dev_for_recover(phba);
9141                 return PCI_ERS_RESULT_CAN_RECOVER;
9142         case pci_channel_io_frozen:
9143                 /* Fatal error, prepare for slot reset */
9144                 lpfc_sli4_prep_dev_for_reset(phba);
9145                 return PCI_ERS_RESULT_NEED_RESET;
9146         case pci_channel_io_perm_failure:
9147                 /* Permanent failure, prepare for device down */
9148                 lpfc_sli4_prep_dev_for_perm_failure(phba);
9149                 return PCI_ERS_RESULT_DISCONNECT;
9150         default:
9151                 /* Unknown state, prepare and request slot reset */
9152                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9153                                 "2825 Unknown PCI error state: x%x\n", state);
9154                 lpfc_sli4_prep_dev_for_reset(phba);
9155                 return PCI_ERS_RESULT_NEED_RESET;
9156         }
9157 }
9158
9159 /**
9160  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
9161  * @pdev: pointer to PCI device.
9162  *
9163  * This routine is called from the PCI subsystem for error handling to device
9164  * with SLI-4 interface spec. It is called after PCI bus has been reset to
9165  * restart the PCI card from scratch, as if from a cold-boot. During the
9166  * PCI subsystem error recovery, after the driver returns
9167  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
9168  * recovery and then call this routine before calling the .resume method to
9169  * recover the device. This function will initialize the HBA device, enable
9170  * the interrupt, but it will just put the HBA to offline state without
9171  * passing any I/O traffic.
9172  *
9173  * Return codes
9174  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9175  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9176  */
9177 static pci_ers_result_t
9178 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
9179 {
9180         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9181         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9182         struct lpfc_sli *psli = &phba->sli;
9183         uint32_t intr_mode;
9184
9185         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
9186         if (pci_enable_device_mem(pdev)) {
9187                 printk(KERN_ERR "lpfc: Cannot re-enable "
9188                         "PCI device after reset.\n");
9189                 return PCI_ERS_RESULT_DISCONNECT;
9190         }
9191
9192         pci_restore_state(pdev);
9193         if (pdev->is_busmaster)
9194                 pci_set_master(pdev);
9195
9196         spin_lock_irq(&phba->hbalock);
9197         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
9198         spin_unlock_irq(&phba->hbalock);
9199
9200         /* Configure and enable interrupt */
9201         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
9202         if (intr_mode == LPFC_INTR_ERROR) {
9203                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9204                                 "2824 Cannot re-enable interrupt after "
9205                                 "slot reset.\n");
9206                 return PCI_ERS_RESULT_DISCONNECT;
9207         } else
9208                 phba->intr_mode = intr_mode;
9209
9210         /* Log the current active interrupt mode */
9211         lpfc_log_intr_mode(phba, phba->intr_mode);
9212
9213         return PCI_ERS_RESULT_RECOVERED;
9214 }
9215
9216 /**
9217  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
9218  * @pdev: pointer to PCI device
9219  *
9220  * This routine is called from the PCI subsystem for error handling to device
9221  * with SLI-4 interface spec. It is called when kernel error recovery tells
9222  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
9223  * error recovery. After this call, traffic can start to flow from this device
9224  * again.
9225  **/
9226 static void
9227 lpfc_io_resume_s4(struct pci_dev *pdev)
9228 {
9229         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9230         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9231
9232         /*
9233          * In case of slot reset, as function reset is performed through
9234          * mailbox command which needs DMA to be enabled, this operation
9235          * has to be moved to the io resume phase. Taking device offline
9236          * will perform the necessary cleanup.
9237          */
9238         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
9239                 /* Perform device reset */
9240                 lpfc_offline_prep(phba);
9241                 lpfc_offline(phba);
9242                 lpfc_sli_brdrestart(phba);
9243                 /* Bring the device back online */
9244                 lpfc_online(phba);
9245         }
9246
9247         /* Clean up Advanced Error Reporting (AER) if needed */
9248         if (phba->hba_flag & HBA_AER_ENABLED)
9249                 pci_cleanup_aer_uncorrect_error_status(pdev);
9250 }
9251
9252 /**
9253  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
9254  * @pdev: pointer to PCI device
9255  * @pid: pointer to PCI device identifier
9256  *
9257  * This routine is to be registered to the kernel's PCI subsystem. When an
9258  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
9259  * at PCI device-specific information of the device and driver to see if the
9260  * driver state that it can support this kind of device. If the match is
9261  * successful, the driver core invokes this routine. This routine dispatches
9262  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
9263  * do all the initialization that it needs to do to handle the HBA device
9264  * properly.
9265  *
9266  * Return code
9267  *      0 - driver can claim the device
9268  *      negative value - driver can not claim the device
9269  **/
9270 static int __devinit
9271 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
9272 {
9273         int rc;
9274         struct lpfc_sli_intf intf;
9275
9276         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
9277                 return -ENODEV;
9278
9279         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
9280             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
9281                 rc = lpfc_pci_probe_one_s4(pdev, pid);
9282         else
9283                 rc = lpfc_pci_probe_one_s3(pdev, pid);
9284
9285         return rc;
9286 }
9287
9288 /**
9289  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
9290  * @pdev: pointer to PCI device
9291  *
9292  * This routine is to be registered to the kernel's PCI subsystem. When an
9293  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
9294  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
9295  * remove routine, which will perform all the necessary cleanup for the
9296  * device to be removed from the PCI subsystem properly.
9297  **/
9298 static void __devexit
9299 lpfc_pci_remove_one(struct pci_dev *pdev)
9300 {
9301         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9302         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9303
9304         switch (phba->pci_dev_grp) {
9305         case LPFC_PCI_DEV_LP:
9306                 lpfc_pci_remove_one_s3(pdev);
9307                 break;
9308         case LPFC_PCI_DEV_OC:
9309                 lpfc_pci_remove_one_s4(pdev);
9310                 break;
9311         default:
9312                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9313                                 "1424 Invalid PCI device group: 0x%x\n",
9314                                 phba->pci_dev_grp);
9315                 break;
9316         }
9317         return;
9318 }
9319
9320 /**
9321  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
9322  * @pdev: pointer to PCI device
9323  * @msg: power management message
9324  *
9325  * This routine is to be registered to the kernel's PCI subsystem to support
9326  * system Power Management (PM). When PM invokes this method, it dispatches
9327  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
9328  * suspend the device.
9329  *
9330  * Return code
9331  *      0 - driver suspended the device
9332  *      Error otherwise
9333  **/
9334 static int
9335 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
9336 {
9337         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9338         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9339         int rc = -ENODEV;
9340
9341         switch (phba->pci_dev_grp) {
9342         case LPFC_PCI_DEV_LP:
9343                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
9344                 break;
9345         case LPFC_PCI_DEV_OC:
9346                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
9347                 break;
9348         default:
9349                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9350                                 "1425 Invalid PCI device group: 0x%x\n",
9351                                 phba->pci_dev_grp);
9352                 break;
9353         }
9354         return rc;
9355 }
9356
9357 /**
9358  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
9359  * @pdev: pointer to PCI device
9360  *
9361  * This routine is to be registered to the kernel's PCI subsystem to support
9362  * system Power Management (PM). When PM invokes this method, it dispatches
9363  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
9364  * resume the device.
9365  *
9366  * Return code
9367  *      0 - driver suspended the device
9368  *      Error otherwise
9369  **/
9370 static int
9371 lpfc_pci_resume_one(struct pci_dev *pdev)
9372 {
9373         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9374         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9375         int rc = -ENODEV;
9376
9377         switch (phba->pci_dev_grp) {
9378         case LPFC_PCI_DEV_LP:
9379                 rc = lpfc_pci_resume_one_s3(pdev);
9380                 break;
9381         case LPFC_PCI_DEV_OC:
9382                 rc = lpfc_pci_resume_one_s4(pdev);
9383                 break;
9384         default:
9385                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9386                                 "1426 Invalid PCI device group: 0x%x\n",
9387                                 phba->pci_dev_grp);
9388                 break;
9389         }
9390         return rc;
9391 }
9392
9393 /**
9394  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
9395  * @pdev: pointer to PCI device.
9396  * @state: the current PCI connection state.
9397  *
9398  * This routine is registered to the PCI subsystem for error handling. This
9399  * function is called by the PCI subsystem after a PCI bus error affecting
9400  * this device has been detected. When this routine is invoked, it dispatches
9401  * the action to the proper SLI-3 or SLI-4 device error detected handling
9402  * routine, which will perform the proper error detected operation.
9403  *
9404  * Return codes
9405  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
9406  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9407  **/
9408 static pci_ers_result_t
9409 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
9410 {
9411         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9412         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9413         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9414
9415         switch (phba->pci_dev_grp) {
9416         case LPFC_PCI_DEV_LP:
9417                 rc = lpfc_io_error_detected_s3(pdev, state);
9418                 break;
9419         case LPFC_PCI_DEV_OC:
9420                 rc = lpfc_io_error_detected_s4(pdev, state);
9421                 break;
9422         default:
9423                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9424                                 "1427 Invalid PCI device group: 0x%x\n",
9425                                 phba->pci_dev_grp);
9426                 break;
9427         }
9428         return rc;
9429 }
9430
9431 /**
9432  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
9433  * @pdev: pointer to PCI device.
9434  *
9435  * This routine is registered to the PCI subsystem for error handling. This
9436  * function is called after PCI bus has been reset to restart the PCI card
9437  * from scratch, as if from a cold-boot. When this routine is invoked, it
9438  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
9439  * routine, which will perform the proper device reset.
9440  *
9441  * Return codes
9442  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
9443  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
9444  **/
9445 static pci_ers_result_t
9446 lpfc_io_slot_reset(struct pci_dev *pdev)
9447 {
9448         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9449         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9450         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
9451
9452         switch (phba->pci_dev_grp) {
9453         case LPFC_PCI_DEV_LP:
9454                 rc = lpfc_io_slot_reset_s3(pdev);
9455                 break;
9456         case LPFC_PCI_DEV_OC:
9457                 rc = lpfc_io_slot_reset_s4(pdev);
9458                 break;
9459         default:
9460                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9461                                 "1428 Invalid PCI device group: 0x%x\n",
9462                                 phba->pci_dev_grp);
9463                 break;
9464         }
9465         return rc;
9466 }
9467
9468 /**
9469  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
9470  * @pdev: pointer to PCI device
9471  *
9472  * This routine is registered to the PCI subsystem for error handling. It
9473  * is called when kernel error recovery tells the lpfc driver that it is
9474  * OK to resume normal PCI operation after PCI bus error recovery. When
9475  * this routine is invoked, it dispatches the action to the proper SLI-3
9476  * or SLI-4 device io_resume routine, which will resume the device operation.
9477  **/
9478 static void
9479 lpfc_io_resume(struct pci_dev *pdev)
9480 {
9481         struct Scsi_Host *shost = pci_get_drvdata(pdev);
9482         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
9483
9484         switch (phba->pci_dev_grp) {
9485         case LPFC_PCI_DEV_LP:
9486                 lpfc_io_resume_s3(pdev);
9487                 break;
9488         case LPFC_PCI_DEV_OC:
9489                 lpfc_io_resume_s4(pdev);
9490                 break;
9491         default:
9492                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9493                                 "1429 Invalid PCI device group: 0x%x\n",
9494                                 phba->pci_dev_grp);
9495                 break;
9496         }
9497         return;
9498 }
9499
9500 static struct pci_device_id lpfc_id_table[] = {
9501         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
9502                 PCI_ANY_ID, PCI_ANY_ID, },
9503         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
9504                 PCI_ANY_ID, PCI_ANY_ID, },
9505         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
9506                 PCI_ANY_ID, PCI_ANY_ID, },
9507         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
9508                 PCI_ANY_ID, PCI_ANY_ID, },
9509         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
9510                 PCI_ANY_ID, PCI_ANY_ID, },
9511         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
9512                 PCI_ANY_ID, PCI_ANY_ID, },
9513         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
9514                 PCI_ANY_ID, PCI_ANY_ID, },
9515         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
9516                 PCI_ANY_ID, PCI_ANY_ID, },
9517         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
9518                 PCI_ANY_ID, PCI_ANY_ID, },
9519         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
9520                 PCI_ANY_ID, PCI_ANY_ID, },
9521         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
9522                 PCI_ANY_ID, PCI_ANY_ID, },
9523         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
9524                 PCI_ANY_ID, PCI_ANY_ID, },
9525         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
9526                 PCI_ANY_ID, PCI_ANY_ID, },
9527         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
9528                 PCI_ANY_ID, PCI_ANY_ID, },
9529         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
9530                 PCI_ANY_ID, PCI_ANY_ID, },
9531         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
9532                 PCI_ANY_ID, PCI_ANY_ID, },
9533         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
9534                 PCI_ANY_ID, PCI_ANY_ID, },
9535         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
9536                 PCI_ANY_ID, PCI_ANY_ID, },
9537         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
9538                 PCI_ANY_ID, PCI_ANY_ID, },
9539         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
9540                 PCI_ANY_ID, PCI_ANY_ID, },
9541         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
9542                 PCI_ANY_ID, PCI_ANY_ID, },
9543         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
9544                 PCI_ANY_ID, PCI_ANY_ID, },
9545         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
9546                 PCI_ANY_ID, PCI_ANY_ID, },
9547         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
9548                 PCI_ANY_ID, PCI_ANY_ID, },
9549         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
9550                 PCI_ANY_ID, PCI_ANY_ID, },
9551         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
9552                 PCI_ANY_ID, PCI_ANY_ID, },
9553         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
9554                 PCI_ANY_ID, PCI_ANY_ID, },
9555         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
9556                 PCI_ANY_ID, PCI_ANY_ID, },
9557         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
9558                 PCI_ANY_ID, PCI_ANY_ID, },
9559         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
9560                 PCI_ANY_ID, PCI_ANY_ID, },
9561         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
9562                 PCI_ANY_ID, PCI_ANY_ID, },
9563         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
9564                 PCI_ANY_ID, PCI_ANY_ID, },
9565         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
9566                 PCI_ANY_ID, PCI_ANY_ID, },
9567         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
9568                 PCI_ANY_ID, PCI_ANY_ID, },
9569         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
9570                 PCI_ANY_ID, PCI_ANY_ID, },
9571         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
9572                 PCI_ANY_ID, PCI_ANY_ID, },
9573         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
9574                 PCI_ANY_ID, PCI_ANY_ID, },
9575         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
9576                 PCI_ANY_ID, PCI_ANY_ID, },
9577         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
9578                 PCI_ANY_ID, PCI_ANY_ID, },
9579         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
9580                 PCI_ANY_ID, PCI_ANY_ID, },
9581         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
9582                 PCI_ANY_ID, PCI_ANY_ID, },
9583         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC,
9584                 PCI_ANY_ID, PCI_ANY_ID, },
9585         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE,
9586                 PCI_ANY_ID, PCI_ANY_ID, },
9587         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FC_VF,
9588                 PCI_ANY_ID, PCI_ANY_ID, },
9589         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LANCER_FCOE_VF,
9590                 PCI_ANY_ID, PCI_ANY_ID, },
9591         { 0 }
9592 };
9593
9594 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
9595
9596 static struct pci_error_handlers lpfc_err_handler = {
9597         .error_detected = lpfc_io_error_detected,
9598         .slot_reset = lpfc_io_slot_reset,
9599         .resume = lpfc_io_resume,
9600 };
9601
9602 static struct pci_driver lpfc_driver = {
9603         .name           = LPFC_DRIVER_NAME,
9604         .id_table       = lpfc_id_table,
9605         .probe          = lpfc_pci_probe_one,
9606         .remove         = __devexit_p(lpfc_pci_remove_one),
9607         .suspend        = lpfc_pci_suspend_one,
9608         .resume         = lpfc_pci_resume_one,
9609         .err_handler    = &lpfc_err_handler,
9610 };
9611
9612 /**
9613  * lpfc_init - lpfc module initialization routine
9614  *
9615  * This routine is to be invoked when the lpfc module is loaded into the
9616  * kernel. The special kernel macro module_init() is used to indicate the
9617  * role of this routine to the kernel as lpfc module entry point.
9618  *
9619  * Return codes
9620  *   0 - successful
9621  *   -ENOMEM - FC attach transport failed
9622  *   all others - failed
9623  */
9624 static int __init
9625 lpfc_init(void)
9626 {
9627         int error = 0;
9628
9629         printk(LPFC_MODULE_DESC "\n");
9630         printk(LPFC_COPYRIGHT "\n");
9631
9632         if (lpfc_enable_npiv) {
9633                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9634                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9635         }
9636         lpfc_transport_template =
9637                                 fc_attach_transport(&lpfc_transport_functions);
9638         if (lpfc_transport_template == NULL)
9639                 return -ENOMEM;
9640         if (lpfc_enable_npiv) {
9641                 lpfc_vport_transport_template =
9642                         fc_attach_transport(&lpfc_vport_transport_functions);
9643                 if (lpfc_vport_transport_template == NULL) {
9644                         fc_release_transport(lpfc_transport_template);
9645                         return -ENOMEM;
9646                 }
9647         }
9648         error = pci_register_driver(&lpfc_driver);
9649         if (error) {
9650                 fc_release_transport(lpfc_transport_template);
9651                 if (lpfc_enable_npiv)
9652                         fc_release_transport(lpfc_vport_transport_template);
9653         }
9654
9655         return error;
9656 }
9657
9658 /**
9659  * lpfc_exit - lpfc module removal routine
9660  *
9661  * This routine is invoked when the lpfc module is removed from the kernel.
9662  * The special kernel macro module_exit() is used to indicate the role of
9663  * this routine to the kernel as lpfc module exit point.
9664  */
9665 static void __exit
9666 lpfc_exit(void)
9667 {
9668         pci_unregister_driver(&lpfc_driver);
9669         fc_release_transport(lpfc_transport_template);
9670         if (lpfc_enable_npiv)
9671                 fc_release_transport(lpfc_vport_transport_template);
9672         if (_dump_buf_data) {
9673                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9674                                 "_dump_buf_data at 0x%p\n",
9675                                 (1L << _dump_buf_data_order), _dump_buf_data);
9676                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9677         }
9678
9679         if (_dump_buf_dif) {
9680                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9681                                 "_dump_buf_dif at 0x%p\n",
9682                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9683                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9684         }
9685 }
9686
9687 module_init(lpfc_init);
9688 module_exit(lpfc_exit);
9689 MODULE_LICENSE("GPL");
9690 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9691 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9692 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);