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) 2004-2010 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_config_port_post - Perform lpfc initialization after config port
 313  * @phba: pointer to lpfc hba data structure.
 314  *
 315  * This routine will do LPFC initialization after the CONFIG_PORT mailbox
 316  * command call. It performs all internal resource and state setups on the
 317  * port: post IOCB buffers, enable appropriate host interrupt attentions,
 318  * ELS ring timers, etc.
 319  *
 320  * Return codes
 321  *   0 - success.
 322  *   Any other value - error.
 323  **/
 324 int
 325 lpfc_config_port_post(struct lpfc_hba *phba)
 326 {
 327         struct lpfc_vport *vport = phba->pport;
 328         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 329         LPFC_MBOXQ_t *pmb;
 330         MAILBOX_t *mb;
 331         struct lpfc_dmabuf *mp;
 332         struct lpfc_sli *psli = &phba->sli;
 333         uint32_t status, timeout;
 334         int i, j;
 335         int rc;
 336
 337         spin_lock_irq(&phba->hbalock);
 338         /*
 339          * If the Config port completed correctly the HBA is not
 340          * over heated any more.
 341          */
 342         if (phba->over_temp_state == HBA_OVER_TEMP)
 343                 phba->over_temp_state = HBA_NORMAL_TEMP;
 344         spin_unlock_irq(&phba->hbalock);
 345
 346         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 347         if (!pmb) {
 348                 phba->link_state = LPFC_HBA_ERROR;
 349                 return -ENOMEM;
 350         }
 351         mb = &pmb->u.mb;
 352
 353         /* Get login parameters for NID.  */
 354         rc = lpfc_read_sparam(phba, pmb, 0);
 355         if (rc) {
 356                 mempool_free(pmb, phba->mbox_mem_pool);
 357                 return -ENOMEM;
 358         }
 359
 360         pmb->vport = vport;
 361         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 362                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 363                                 "0448 Adapter failed init, mbxCmd x%x "
 364                                 "READ_SPARM mbxStatus x%x\n",
 365                                 mb->mbxCommand, mb->mbxStatus);
 366                 phba->link_state = LPFC_HBA_ERROR;
 367                 mp = (struct lpfc_dmabuf *) pmb->context1;
 368                 mempool_free(pmb, phba->mbox_mem_pool);
 369                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 370                 kfree(mp);
 371                 return -EIO;
 372         }
 373
 374         mp = (struct lpfc_dmabuf *) pmb->context1;
 375
 376         memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
 377         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 378         kfree(mp);
 379         pmb->context1 = NULL;
 380
 381         if (phba->cfg_soft_wwnn)
 382                 u64_to_wwn(phba->cfg_soft_wwnn,
 383                            vport->fc_sparam.nodeName.u.wwn);
 384         if (phba->cfg_soft_wwpn)
 385                 u64_to_wwn(phba->cfg_soft_wwpn,
 386                            vport->fc_sparam.portName.u.wwn);
 387         memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
 388                sizeof (struct lpfc_name));
 389         memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
 390                sizeof (struct lpfc_name));
 391
 392         /* Update the fc_host data structures with new wwn. */
 393         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
 394         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
 395         fc_host_max_npiv_vports(shost) = phba->max_vpi;
 396
 397         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 398         /* This should be consolidated into parse_vpd ? - mr */
 399         if (phba->SerialNumber[0] == 0) {
 400                 uint8_t *outptr;
 401
 402                 outptr = &vport->fc_nodename.u.s.IEEE[0];
 403                 for (i = 0; i < 12; i++) {
 404                         status = *outptr++;
 405                         j = ((status & 0xf0) >> 4);
 406                         if (j <= 9)
 407                                 phba->SerialNumber[i] =
 408                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 409                         else
 410                                 phba->SerialNumber[i] =
 411                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 412                         i++;
 413                         j = (status & 0xf);
 414                         if (j <= 9)
 415                                 phba->SerialNumber[i] =
 416                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 417                         else
 418                                 phba->SerialNumber[i] =
 419                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 420                 }
 421         }
 422
 423         lpfc_read_config(phba, pmb);
 424         pmb->vport = vport;
 425         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 427                                 "0453 Adapter failed to init, mbxCmd x%x "
 428                                 "READ_CONFIG, mbxStatus x%x\n",
 429                                 mb->mbxCommand, mb->mbxStatus);
 430                 phba->link_state = LPFC_HBA_ERROR;
 431                 mempool_free( pmb, phba->mbox_mem_pool);
 432                 return -EIO;
 433         }
 434
 435         /* Check if the port is disabled */
 436         lpfc_sli_read_link_ste(phba);
 437
 438         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 439         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 440                 phba->cfg_hba_queue_depth =
 441                         (mb->un.varRdConfig.max_xri + 1) -
 442                                         lpfc_sli4_get_els_iocb_cnt(phba);
 443
 444         phba->lmt = mb->un.varRdConfig.lmt;
 445
 446         /* Get the default values for Model Name and Description */
 447         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 448
 449         if ((phba->cfg_link_speed > LINK_SPEED_10G)
 450             || ((phba->cfg_link_speed == LINK_SPEED_1G)
 451                 && !(phba->lmt & LMT_1Gb))
 452             || ((phba->cfg_link_speed == LINK_SPEED_2G)
 453                 && !(phba->lmt & LMT_2Gb))
 454             || ((phba->cfg_link_speed == LINK_SPEED_4G)
 455                 && !(phba->lmt & LMT_4Gb))
 456             || ((phba->cfg_link_speed == LINK_SPEED_8G)
 457                 && !(phba->lmt & LMT_8Gb))
 458             || ((phba->cfg_link_speed == LINK_SPEED_10G)
 459                 && !(phba->lmt & LMT_10Gb))) {
 460                 /* Reset link speed to auto */
 461                 lpfc_printf_log(phba, KERN_WARNING, LOG_LINK_EVENT,
 462                         "1302 Invalid speed for this board: "
 463                         "Reset link speed to auto: x%x\n",
 464                         phba->cfg_link_speed);
 465                         phba->cfg_link_speed = LINK_SPEED_AUTO;
 466         }
 467
 468         phba->link_state = LPFC_LINK_DOWN;
 469
 470         /* Only process IOCBs on ELS ring till hba_state is READY */
 471         if (psli->ring[psli->extra_ring].cmdringaddr)
 472                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 473         if (psli->ring[psli->fcp_ring].cmdringaddr)
 474                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 475         if (psli->ring[psli->next_ring].cmdringaddr)
 476                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 477
 478         /* Post receive buffers for desired rings */
 479         if (phba->sli_rev != 3)
 480                 lpfc_post_rcv_buf(phba);
 481
 482         /*
 483          * Configure HBA MSI-X attention conditions to messages if MSI-X mode
 484          */
 485         if (phba->intr_type == MSIX) {
 486                 rc = lpfc_config_msi(phba, pmb);
 487                 if (rc) {
 488                         mempool_free(pmb, phba->mbox_mem_pool);
 489                         return -EIO;
 490                 }
 491                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 492                 if (rc != MBX_SUCCESS) {
 493                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
 494                                         "0352 Config MSI mailbox command "
 495                                         "failed, mbxCmd x%x, mbxStatus x%x\n",
 496                                         pmb->u.mb.mbxCommand,
 497                                         pmb->u.mb.mbxStatus);
 498                         mempool_free(pmb, phba->mbox_mem_pool);
 499                         return -EIO;
 500                 }
 501         }
 502
 503         spin_lock_irq(&phba->hbalock);
 504         /* Initialize ERATT handling flag */
 505         phba->hba_flag &= ~HBA_ERATT_HANDLED;
 506
 507         /* Enable appropriate host interrupts */
 508         status = readl(phba->HCregaddr);
 509         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 510         if (psli->num_rings > 0)
 511                 status |= HC_R0INT_ENA;
 512         if (psli->num_rings > 1)
 513                 status |= HC_R1INT_ENA;
 514         if (psli->num_rings > 2)
 515                 status |= HC_R2INT_ENA;
 516         if (psli->num_rings > 3)
 517                 status |= HC_R3INT_ENA;
 518
 519         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 520             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 521                 status &= ~(HC_R0INT_ENA);
 522
 523         writel(status, phba->HCregaddr);
 524         readl(phba->HCregaddr); /* flush */
 525         spin_unlock_irq(&phba->hbalock);
 526
 527         /* Set up ring-0 (ELS) timer */
 528         timeout = phba->fc_ratov * 2;
 529         mod_timer(&vport->els_tmofunc, jiffies + HZ * timeout);
 530         /* Set up heart beat (HB) timer */
 531         mod_timer(&phba->hb_tmofunc, jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 532         phba->hb_outstanding = 0;
 533         phba->last_completion_time = jiffies;
 534         /* Set up error attention (ERATT) polling timer */
 535         mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
 536
 537         if (phba->hba_flag & LINK_DISABLED) {
 538                 lpfc_printf_log(phba,
 539                         KERN_ERR, LOG_INIT,
 540                         "2598 Adapter Link is disabled.\n");
 541                 lpfc_down_link(phba, pmb);
 542                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 543                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 544                 if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 545                         lpfc_printf_log(phba,
 546                         KERN_ERR, LOG_INIT,
 547                         "2599 Adapter failed to issue DOWN_LINK"
 548                         " mbox command rc 0x%x\n", rc);
 549
 550                         mempool_free(pmb, phba->mbox_mem_pool);
 551                         return -EIO;
 552                 }
 553         } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
 554                 lpfc_init_link(phba, pmb, phba->cfg_topology,
 555                         phba->cfg_link_speed);
 556                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 557                 lpfc_set_loopback_flag(phba);
 558                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 559                 if (rc != MBX_SUCCESS) {
 560                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 561                                 "0454 Adapter failed to init, mbxCmd x%x "
 562                                 "INIT_LINK, mbxStatus x%x\n",
 563                                 mb->mbxCommand, mb->mbxStatus);
 564
 565                         /* Clear all interrupt enable conditions */
 566                         writel(0, phba->HCregaddr);
 567                         readl(phba->HCregaddr); /* flush */
 568                         /* Clear all pending interrupts */
 569                         writel(0xffffffff, phba->HAregaddr);
 570                         readl(phba->HAregaddr); /* flush */
 571
 572                         phba->link_state = LPFC_HBA_ERROR;
 573                         if (rc != MBX_BUSY)
 574                                 mempool_free(pmb, phba->mbox_mem_pool);
 575                         return -EIO;
 576                 }
 577         }
 578         /* MBOX buffer will be freed in mbox compl */
 579         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 580         if (!pmb) {
 581                 phba->link_state = LPFC_HBA_ERROR;
 582                 return -ENOMEM;
 583         }
 584
 585         lpfc_config_async(phba, pmb, LPFC_ELS_RING);
 586         pmb->mbox_cmpl = lpfc_config_async_cmpl;
 587         pmb->vport = phba->pport;
 588         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 589
 590         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 591                 lpfc_printf_log(phba,
 592                                 KERN_ERR,
 593                                 LOG_INIT,
 594                                 "0456 Adapter failed to issue "
 595                                 "ASYNCEVT_ENABLE mbox status x%x\n",
 596                                 rc);
 597                 mempool_free(pmb, phba->mbox_mem_pool);
 598         }
 599
 600         /* Get Option rom version */
 601         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 602         if (!pmb) {
 603                 phba->link_state = LPFC_HBA_ERROR;
 604                 return -ENOMEM;
 605         }
 606
 607         lpfc_dump_wakeup_param(phba, pmb);
 608         pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl;
 609         pmb->vport = phba->pport;
 610         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 611
 612         if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed "
 614                                 "to get Option ROM version status x%x\n", rc);
 615                 mempool_free(pmb, phba->mbox_mem_pool);
 616         }
 617
 618         return 0;
 619 }
 620
 621 /**
 622  * lpfc_hba_init_link - Initialize the FC link
 623  * @phba: pointer to lpfc hba data structure.
 624  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 625  *
 626  * This routine will issue the INIT_LINK mailbox command call.
 627  * It is available to other drivers through the lpfc_hba data
 628  * structure for use as a delayed link up mechanism with the
 629  * module parameter lpfc_suppress_link_up.
 630  *
 631  * Return code
 632  *              0 - success
 633  *              Any other value - error
 634  **/
 635 int
 636 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 637 {
 638         struct lpfc_vport *vport = phba->pport;
 639         LPFC_MBOXQ_t *pmb;
 640         MAILBOX_t *mb;
 641         int rc;
 642
 643         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 644         if (!pmb) {
 645                 phba->link_state = LPFC_HBA_ERROR;
 646                 return -ENOMEM;
 647         }
 648         mb = &pmb->u.mb;
 649         pmb->vport = vport;
 650
 651         lpfc_init_link(phba, pmb, phba->cfg_topology,
 652                 phba->cfg_link_speed);
 653         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 654         lpfc_set_loopback_flag(phba);
 655         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 656         if (rc != MBX_SUCCESS) {
 657                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 658                         "0498 Adapter failed to init, mbxCmd x%x "
 659                         "INIT_LINK, mbxStatus x%x\n",
 660                         mb->mbxCommand, mb->mbxStatus);
 661                 /* Clear all interrupt enable conditions */
 662                 writel(0, phba->HCregaddr);
 663                 readl(phba->HCregaddr); /* flush */
 664                 /* Clear all pending interrupts */
 665                 writel(0xffffffff, phba->HAregaddr);
 666                 readl(phba->HAregaddr); /* flush */
 667                 phba->link_state = LPFC_HBA_ERROR;
 668                 if (rc != MBX_BUSY || flag == MBX_POLL)
 669                         mempool_free(pmb, phba->mbox_mem_pool);
 670                 return -EIO;
 671         }
 672         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 673         if (flag == MBX_POLL)
 674                 mempool_free(pmb, phba->mbox_mem_pool);
 675
 676         return 0;
 677 }
 678
 679 /**
 680  * lpfc_hba_down_link - this routine downs the FC link
 681  * @phba: pointer to lpfc hba data structure.
 682  * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
 683  *
 684  * This routine will issue the DOWN_LINK mailbox command call.
 685  * It is available to other drivers through the lpfc_hba data
 686  * structure for use to stop the link.
 687  *
 688  * Return code
 689  *              0 - success
 690  *              Any other value - error
 691  **/
 692 int
 693 lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag)
 694 {
 695         LPFC_MBOXQ_t *pmb;
 696         int rc;
 697
 698         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 699         if (!pmb) {
 700                 phba->link_state = LPFC_HBA_ERROR;
 701                 return -ENOMEM;
 702         }
 703
 704         lpfc_printf_log(phba,
 705                 KERN_ERR, LOG_INIT,
 706                 "0491 Adapter Link is disabled.\n");
 707         lpfc_down_link(phba, pmb);
 708         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 709         rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 710         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 711                 lpfc_printf_log(phba,
 712                 KERN_ERR, LOG_INIT,
 713                 "2522 Adapter failed to issue DOWN_LINK"
 714                 " mbox command rc 0x%x\n", rc);
 715
 716                 mempool_free(pmb, phba->mbox_mem_pool);
 717                 return -EIO;
 718         }
 719         if (flag == MBX_POLL)
 720                 mempool_free(pmb, phba->mbox_mem_pool);
 721
 722         return 0;
 723 }
 724
 725 /**
 726  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 727  * @phba: pointer to lpfc HBA data structure.
 728  *
 729  * This routine will do LPFC uninitialization before the HBA is reset when
 730  * bringing down the SLI Layer.
 731  *
 732  * Return codes
 733  *   0 - success.
 734  *   Any other value - error.
 735  **/
 736 int
 737 lpfc_hba_down_prep(struct lpfc_hba *phba)
 738 {
 739         struct lpfc_vport **vports;
 740         int i;
 741
 742         if (phba->sli_rev <= LPFC_SLI_REV3) {
 743                 /* Disable interrupts */
 744                 writel(0, phba->HCregaddr);
 745                 readl(phba->HCregaddr); /* flush */
 746         }
 747
 748         if (phba->pport->load_flag & FC_UNLOADING)
 749                 lpfc_cleanup_discovery_resources(phba->pport);
 750         else {
 751                 vports = lpfc_create_vport_work_array(phba);
 752                 if (vports != NULL)
 753                         for (i = 0; i <= phba->max_vports &&
 754                                 vports[i] != NULL; i++)
 755                                 lpfc_cleanup_discovery_resources(vports[i]);
 756                 lpfc_destroy_vport_work_array(phba, vports);
 757         }
 758         return 0;
 759 }
 760
 761 /**
 762  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 763  * @phba: pointer to lpfc HBA data structure.
 764  *
 765  * This routine will do uninitialization after the HBA is reset when bring
 766  * down the SLI Layer.
 767  *
 768  * Return codes
 769  *   0 - success.
 770  *   Any other value - error.
 771  **/
 772 static int
 773 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 774 {
 775         struct lpfc_sli *psli = &phba->sli;
 776         struct lpfc_sli_ring *pring;
 777         struct lpfc_dmabuf *mp, *next_mp;
 778         LIST_HEAD(completions);
 779         int i;
 780
 781         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 782                 lpfc_sli_hbqbuf_free_all(phba);
 783         else {
 784                 /* Cleanup preposted buffers on the ELS ring */
 785                 pring = &psli->ring[LPFC_ELS_RING];
 786                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 787                         list_del(&mp->list);
 788                         pring->postbufq_cnt--;
 789                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 790                         kfree(mp);
 791                 }
 792         }
 793
 794         spin_lock_irq(&phba->hbalock);
 795         for (i = 0; i < psli->num_rings; i++) {
 796                 pring = &psli->ring[i];
 797
 798                 /* At this point in time the HBA is either reset or DOA. Either
 799                  * way, nothing should be on txcmplq as it will NEVER complete.
 800                  */
 801                 list_splice_init(&pring->txcmplq, &completions);
 802                 pring->txcmplq_cnt = 0;
 803                 spin_unlock_irq(&phba->hbalock);
 804
 805                 /* Cancel all the IOCBs from the completions list */
 806                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 807                                       IOERR_SLI_ABORTED);
 808
 809                 lpfc_sli_abort_iocb_ring(phba, pring);
 810                 spin_lock_irq(&phba->hbalock);
 811         }
 812         spin_unlock_irq(&phba->hbalock);
 813
 814         return 0;
 815 }
 816 /**
 817  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 818  * @phba: pointer to lpfc HBA data structure.
 819  *
 820  * This routine will do uninitialization after the HBA is reset when bring
 821  * down the SLI Layer.
 822  *
 823  * Return codes
 824  *   0 - success.
 825  *   Any other value - error.
 826  **/
 827 static int
 828 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 829 {
 830         struct lpfc_scsi_buf *psb, *psb_next;
 831         LIST_HEAD(aborts);
 832         int ret;
 833         unsigned long iflag = 0;
 834         struct lpfc_sglq *sglq_entry = NULL;
 835
 836         ret = lpfc_hba_down_post_s3(phba);
 837         if (ret)
 838                 return ret;
 839         /* At this point in time the HBA is either reset or DOA. Either
 840          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 841          * on the lpfc_sgl_list so that it can either be freed if the
 842          * driver is unloading or reposted if the driver is restarting
 843          * the port.
 844          */
 845         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 846                                         /* scsl_buf_list */
 847         /* abts_sgl_list_lock required because worker thread uses this
 848          * list.
 849          */
 850         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 851         list_for_each_entry(sglq_entry,
 852                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 853                 sglq_entry->state = SGL_FREED;
 854
 855         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 856                         &phba->sli4_hba.lpfc_sgl_list);
 857         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 858         /* abts_scsi_buf_list_lock required because worker thread uses this
 859          * list.
 860          */
 861         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 862         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 863                         &aborts);
 864         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 865         spin_unlock_irq(&phba->hbalock);
 866
 867         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 868                 psb->pCmd = NULL;
 869                 psb->status = IOSTAT_SUCCESS;
 870         }
 871         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 872         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 873         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 874         return 0;
 875 }
 876
 877 /**
 878  * lpfc_hba_down_post - Wrapper func for hba down post routine
 879  * @phba: pointer to lpfc HBA data structure.
 880  *
 881  * This routine wraps the actual SLI3 or SLI4 routine for performing
 882  * uninitialization after the HBA is reset when bring down the SLI Layer.
 883  *
 884  * Return codes
 885  *   0 - success.
 886  *   Any other value - error.
 887  **/
 888 int
 889 lpfc_hba_down_post(struct lpfc_hba *phba)
 890 {
 891         return (*phba->lpfc_hba_down_post)(phba);
 892 }
 893
 894 /**
 895  * lpfc_hb_timeout - The HBA-timer timeout handler
 896  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 897  *
 898  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 899  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 900  * work-port-events bitmap and the worker thread is notified. This timeout
 901  * event will be used by the worker thread to invoke the actual timeout
 902  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 903  * be performed in the timeout handler and the HBA timeout event bit shall
 904  * be cleared by the worker thread after it has taken the event bitmap out.
 905  **/
 906 static void
 907 lpfc_hb_timeout(unsigned long ptr)
 908 {
 909         struct lpfc_hba *phba;
 910         uint32_t tmo_posted;
 911         unsigned long iflag;
 912
 913         phba = (struct lpfc_hba *)ptr;
 914
 915         /* Check for heart beat timeout conditions */
 916         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 917         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 918         if (!tmo_posted)
 919                 phba->pport->work_port_events |= WORKER_HB_TMO;
 920         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 921
 922         /* Tell the worker thread there is work to do */
 923         if (!tmo_posted)
 924                 lpfc_worker_wake_up(phba);
 925         return;
 926 }
 927
 928 /**
 929  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 930  * @phba: pointer to lpfc hba data structure.
 931  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 932  *
 933  * This is the callback function to the lpfc heart-beat mailbox command.
 934  * If configured, the lpfc driver issues the heart-beat mailbox command to
 935  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 936  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 937  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 938  * heart-beat outstanding state. Once the mailbox command comes back and
 939  * no error conditions detected, the heart-beat mailbox command timer is
 940  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 941  * state is cleared for the next heart-beat. If the timer expired with the
 942  * heart-beat outstanding state set, the driver will put the HBA offline.
 943  **/
 944 static void
 945 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 946 {
 947         unsigned long drvr_flag;
 948
 949         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 950         phba->hb_outstanding = 0;
 951         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 952
 953         /* Check and reset heart-beat timer is necessary */
 954         mempool_free(pmboxq, phba->mbox_mem_pool);
 955         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 956                 !(phba->link_state == LPFC_HBA_ERROR) &&
 957                 !(phba->pport->load_flag & FC_UNLOADING))
 958                 mod_timer(&phba->hb_tmofunc,
 959                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 960         return;
 961 }
 962
 963 /**
 964  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 965  * @phba: pointer to lpfc hba data structure.
 966  *
 967  * This is the actual HBA-timer timeout handler to be invoked by the worker
 968  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 969  * handler performs any periodic operations needed for the device. If such
 970  * periodic event has already been attended to either in the interrupt handler
 971  * or by processing slow-ring or fast-ring events within the HBA-timer
 972  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 973  * the timer for the next timeout period. If lpfc heart-beat mailbox command
 974  * is configured and there is no heart-beat mailbox command outstanding, a
 975  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 976  * has been a heart-beat mailbox command outstanding, the HBA shall be put
 977  * to offline.
 978  **/
 979 void
 980 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 981 {
 982         struct lpfc_vport **vports;
 983         LPFC_MBOXQ_t *pmboxq;
 984         struct lpfc_dmabuf *buf_ptr;
 985         int retval, i;
 986         struct lpfc_sli *psli = &phba->sli;
 987         LIST_HEAD(completions);
 988
 989         vports = lpfc_create_vport_work_array(phba);
 990         if (vports != NULL)
 991                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
 992                         lpfc_rcv_seq_check_edtov(vports[i]);
 993         lpfc_destroy_vport_work_array(phba, vports);
 994
 995         if ((phba->link_state == LPFC_HBA_ERROR) ||
 996                 (phba->pport->load_flag & FC_UNLOADING) ||
 997                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
 998                 return;
 999
1000         spin_lock_irq(&phba->pport->work_port_lock);
1001
1002         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1003                 jiffies)) {
1004                 spin_unlock_irq(&phba->pport->work_port_lock);
1005                 if (!phba->hb_outstanding)
1006                         mod_timer(&phba->hb_tmofunc,
1007                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1008                 else
1009                         mod_timer(&phba->hb_tmofunc,
1010                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1011                 return;
1012         }
1013         spin_unlock_irq(&phba->pport->work_port_lock);
1014
1015         if (phba->elsbuf_cnt &&
1016                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1017                 spin_lock_irq(&phba->hbalock);
1018                 list_splice_init(&phba->elsbuf, &completions);
1019                 phba->elsbuf_cnt = 0;
1020                 phba->elsbuf_prev_cnt = 0;
1021                 spin_unlock_irq(&phba->hbalock);
1022
1023                 while (!list_empty(&completions)) {
1024                         list_remove_head(&completions, buf_ptr,
1025                                 struct lpfc_dmabuf, list);
1026                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1027                         kfree(buf_ptr);
1028                 }
1029         }
1030         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1031
1032         /* If there is no heart beat outstanding, issue a heartbeat command */
1033         if (phba->cfg_enable_hba_heartbeat) {
1034                 if (!phba->hb_outstanding) {
1035                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1036                                 (list_empty(&psli->mboxq))) {
1037                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1038                                                         GFP_KERNEL);
1039                                 if (!pmboxq) {
1040                                         mod_timer(&phba->hb_tmofunc,
1041                                                  jiffies +
1042                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1043                                         return;
1044                                 }
1045
1046                                 lpfc_heart_beat(phba, pmboxq);
1047                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1048                                 pmboxq->vport = phba->pport;
1049                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1050                                                 MBX_NOWAIT);
1051
1052                                 if (retval != MBX_BUSY &&
1053                                         retval != MBX_SUCCESS) {
1054                                         mempool_free(pmboxq,
1055                                                         phba->mbox_mem_pool);
1056                                         mod_timer(&phba->hb_tmofunc,
1057                                                 jiffies +
1058                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1059                                         return;
1060                                 }
1061                                 phba->skipped_hb = 0;
1062                                 phba->hb_outstanding = 1;
1063                         } else if (time_before_eq(phba->last_completion_time,
1064                                         phba->skipped_hb)) {
1065                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1066                                         "2857 Last completion time not "
1067                                         " updated in %d ms\n",
1068                                         jiffies_to_msecs(jiffies
1069                                                  - phba->last_completion_time));
1070                         } else
1071                                 phba->skipped_hb = jiffies;
1072
1073                         mod_timer(&phba->hb_tmofunc,
1074                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1075                         return;
1076                 } else {
1077                         /*
1078                         * If heart beat timeout called with hb_outstanding set
1079                         * we need to give the hb mailbox cmd a chance to
1080                         * complete or TMO.
1081                         */
1082                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1083                                         "0459 Adapter heartbeat still out"
1084                                         "standing:last compl time was %d ms.\n",
1085                                         jiffies_to_msecs(jiffies
1086                                                  - phba->last_completion_time));
1087                         mod_timer(&phba->hb_tmofunc,
1088                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1089                 }
1090         }
1091 }
1092
1093 /**
1094  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1095  * @phba: pointer to lpfc hba data structure.
1096  *
1097  * This routine is called to bring the HBA offline when HBA hardware error
1098  * other than Port Error 6 has been detected.
1099  **/
1100 static void
1101 lpfc_offline_eratt(struct lpfc_hba *phba)
1102 {
1103         struct lpfc_sli   *psli = &phba->sli;
1104
1105         spin_lock_irq(&phba->hbalock);
1106         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1107         spin_unlock_irq(&phba->hbalock);
1108         lpfc_offline_prep(phba);
1109
1110         lpfc_offline(phba);
1111         lpfc_reset_barrier(phba);
1112         spin_lock_irq(&phba->hbalock);
1113         lpfc_sli_brdreset(phba);
1114         spin_unlock_irq(&phba->hbalock);
1115         lpfc_hba_down_post(phba);
1116         lpfc_sli_brdready(phba, HS_MBRDY);
1117         lpfc_unblock_mgmt_io(phba);
1118         phba->link_state = LPFC_HBA_ERROR;
1119         return;
1120 }
1121
1122 /**
1123  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1124  * @phba: pointer to lpfc hba data structure.
1125  *
1126  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1127  * other than Port Error 6 has been detected.
1128  **/
1129 static void
1130 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1131 {
1132         lpfc_offline_prep(phba);
1133         lpfc_offline(phba);
1134         lpfc_sli4_brdreset(phba);
1135         lpfc_hba_down_post(phba);
1136         lpfc_sli4_post_status_check(phba);
1137         lpfc_unblock_mgmt_io(phba);
1138         phba->link_state = LPFC_HBA_ERROR;
1139 }
1140
1141 /**
1142  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1143  * @phba: pointer to lpfc hba data structure.
1144  *
1145  * This routine is invoked to handle the deferred HBA hardware error
1146  * conditions. This type of error is indicated by HBA by setting ER1
1147  * and another ER bit in the host status register. The driver will
1148  * wait until the ER1 bit clears before handling the error condition.
1149  **/
1150 static void
1151 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1152 {
1153         uint32_t old_host_status = phba->work_hs;
1154         struct lpfc_sli_ring  *pring;
1155         struct lpfc_sli *psli = &phba->sli;
1156
1157         /* If the pci channel is offline, ignore possible errors,
1158          * since we cannot communicate with the pci card anyway.
1159          */
1160         if (pci_channel_offline(phba->pcidev)) {
1161                 spin_lock_irq(&phba->hbalock);
1162                 phba->hba_flag &= ~DEFER_ERATT;
1163                 spin_unlock_irq(&phba->hbalock);
1164                 return;
1165         }
1166
1167         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1168                 "0479 Deferred Adapter Hardware Error "
1169                 "Data: x%x x%x x%x\n",
1170                 phba->work_hs,
1171                 phba->work_status[0], phba->work_status[1]);
1172
1173         spin_lock_irq(&phba->hbalock);
1174         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1175         spin_unlock_irq(&phba->hbalock);
1176
1177
1178         /*
1179          * Firmware stops when it triggred erratt. That could cause the I/Os
1180          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1181          * SCSI layer retry it after re-establishing link.
1182          */
1183         pring = &psli->ring[psli->fcp_ring];
1184         lpfc_sli_abort_iocb_ring(phba, pring);
1185
1186         /*
1187          * There was a firmware error. Take the hba offline and then
1188          * attempt to restart it.
1189          */
1190         lpfc_offline_prep(phba);
1191         lpfc_offline(phba);
1192
1193         /* Wait for the ER1 bit to clear.*/
1194         while (phba->work_hs & HS_FFER1) {
1195                 msleep(100);
1196                 phba->work_hs = readl(phba->HSregaddr);
1197                 /* If driver is unloading let the worker thread continue */
1198                 if (phba->pport->load_flag & FC_UNLOADING) {
1199                         phba->work_hs = 0;
1200                         break;
1201                 }
1202         }
1203
1204         /*
1205          * This is to ptrotect against a race condition in which
1206          * first write to the host attention register clear the
1207          * host status register.
1208          */
1209         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1210                 phba->work_hs = old_host_status & ~HS_FFER1;
1211
1212         spin_lock_irq(&phba->hbalock);
1213         phba->hba_flag &= ~DEFER_ERATT;
1214         spin_unlock_irq(&phba->hbalock);
1215         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1216         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1217 }
1218
1219 static void
1220 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1221 {
1222         struct lpfc_board_event_header board_event;
1223         struct Scsi_Host *shost;
1224
1225         board_event.event_type = FC_REG_BOARD_EVENT;
1226         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1227         shost = lpfc_shost_from_vport(phba->pport);
1228         fc_host_post_vendor_event(shost, fc_get_event_number(),
1229                                   sizeof(board_event),
1230                                   (char *) &board_event,
1231                                   LPFC_NL_VENDOR_ID);
1232 }
1233
1234 /**
1235  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1236  * @phba: pointer to lpfc hba data structure.
1237  *
1238  * This routine is invoked to handle the following HBA hardware error
1239  * conditions:
1240  * 1 - HBA error attention interrupt
1241  * 2 - DMA ring index out of range
1242  * 3 - Mailbox command came back as unknown
1243  **/
1244 static void
1245 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1246 {
1247         struct lpfc_vport *vport = phba->pport;
1248         struct lpfc_sli   *psli = &phba->sli;
1249         struct lpfc_sli_ring  *pring;
1250         uint32_t event_data;
1251         unsigned long temperature;
1252         struct temp_event temp_event_data;
1253         struct Scsi_Host  *shost;
1254
1255         /* If the pci channel is offline, ignore possible errors,
1256          * since we cannot communicate with the pci card anyway.
1257          */
1258         if (pci_channel_offline(phba->pcidev)) {
1259                 spin_lock_irq(&phba->hbalock);
1260                 phba->hba_flag &= ~DEFER_ERATT;
1261                 spin_unlock_irq(&phba->hbalock);
1262                 return;
1263         }
1264
1265         /* If resets are disabled then leave the HBA alone and return */
1266         if (!phba->cfg_enable_hba_reset)
1267                 return;
1268
1269         /* Send an internal error event to mgmt application */
1270         lpfc_board_errevt_to_mgmt(phba);
1271
1272         if (phba->hba_flag & DEFER_ERATT)
1273                 lpfc_handle_deferred_eratt(phba);
1274
1275         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1276                 if (phba->work_hs & HS_FFER6)
1277                         /* Re-establishing Link */
1278                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1279                                         "1301 Re-establishing Link "
1280                                         "Data: x%x x%x x%x\n",
1281                                         phba->work_hs, phba->work_status[0],
1282                                         phba->work_status[1]);
1283                 if (phba->work_hs & HS_FFER8)
1284                         /* Device Zeroization */
1285                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1286                                         "2861 Host Authentication device "
1287                                         "zeroization Data:x%x x%x x%x\n",
1288                                         phba->work_hs, phba->work_status[0],
1289                                         phba->work_status[1]);
1290
1291                 spin_lock_irq(&phba->hbalock);
1292                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1293                 spin_unlock_irq(&phba->hbalock);
1294
1295                 /*
1296                 * Firmware stops when it triggled erratt with HS_FFER6.
1297                 * That could cause the I/Os dropped by the firmware.
1298                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1299                 * retry it after re-establishing link.
1300                 */
1301                 pring = &psli->ring[psli->fcp_ring];
1302                 lpfc_sli_abort_iocb_ring(phba, pring);
1303
1304                 /*
1305                  * There was a firmware error.  Take the hba offline and then
1306                  * attempt to restart it.
1307                  */
1308                 lpfc_offline_prep(phba);
1309                 lpfc_offline(phba);
1310                 lpfc_sli_brdrestart(phba);
1311                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1312                         lpfc_unblock_mgmt_io(phba);
1313                         return;
1314                 }
1315                 lpfc_unblock_mgmt_io(phba);
1316         } else if (phba->work_hs & HS_CRIT_TEMP) {
1317                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1318                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1319                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1320                 temp_event_data.data = (uint32_t)temperature;
1321
1322                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1323                                 "0406 Adapter maximum temperature exceeded "
1324                                 "(%ld), taking this port offline "
1325                                 "Data: x%x x%x x%x\n",
1326                                 temperature, phba->work_hs,
1327                                 phba->work_status[0], phba->work_status[1]);
1328
1329                 shost = lpfc_shost_from_vport(phba->pport);
1330                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1331                                           sizeof(temp_event_data),
1332                                           (char *) &temp_event_data,
1333                                           SCSI_NL_VID_TYPE_PCI
1334                                           | PCI_VENDOR_ID_EMULEX);
1335
1336                 spin_lock_irq(&phba->hbalock);
1337                 phba->over_temp_state = HBA_OVER_TEMP;
1338                 spin_unlock_irq(&phba->hbalock);
1339                 lpfc_offline_eratt(phba);
1340
1341         } else {
1342                 /* The if clause above forces this code path when the status
1343                  * failure is a value other than FFER6. Do not call the offline
1344                  * twice. This is the adapter hardware error path.
1345                  */
1346                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1347                                 "0457 Adapter Hardware Error "
1348                                 "Data: x%x x%x x%x\n",
1349                                 phba->work_hs,
1350                                 phba->work_status[0], phba->work_status[1]);
1351
1352                 event_data = FC_REG_DUMP_EVENT;
1353                 shost = lpfc_shost_from_vport(vport);
1354                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1355                                 sizeof(event_data), (char *) &event_data,
1356                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1357
1358                 lpfc_offline_eratt(phba);
1359         }
1360         return;
1361 }
1362
1363 /**
1364  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1365  * @phba: pointer to lpfc hba data structure.
1366  *
1367  * This routine is invoked to handle the SLI4 HBA hardware error attention
1368  * conditions.
1369  **/
1370 static void
1371 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1372 {
1373         struct lpfc_vport *vport = phba->pport;
1374         uint32_t event_data;
1375         struct Scsi_Host *shost;
1376
1377         /* If the pci channel is offline, ignore possible errors, since
1378          * we cannot communicate with the pci card anyway.
1379          */
1380         if (pci_channel_offline(phba->pcidev))
1381                 return;
1382         /* If resets are disabled then leave the HBA alone and return */
1383         if (!phba->cfg_enable_hba_reset)
1384                 return;
1385
1386         /* Send an internal error event to mgmt application */
1387         lpfc_board_errevt_to_mgmt(phba);
1388
1389         /* For now, the actual action for SLI4 device handling is not
1390          * specified yet, just treated it as adaptor hardware failure
1391          */
1392         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1393                         "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1394                         phba->work_status[0], phba->work_status[1]);
1395
1396         event_data = FC_REG_DUMP_EVENT;
1397         shost = lpfc_shost_from_vport(vport);
1398         fc_host_post_vendor_event(shost, fc_get_event_number(),
1399                                   sizeof(event_data), (char *) &event_data,
1400                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1401
1402         lpfc_sli4_offline_eratt(phba);
1403 }
1404
1405 /**
1406  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1407  * @phba: pointer to lpfc HBA data structure.
1408  *
1409  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1410  * routine from the API jump table function pointer from the lpfc_hba struct.
1411  *
1412  * Return codes
1413  *   0 - success.
1414  *   Any other value - error.
1415  **/
1416 void
1417 lpfc_handle_eratt(struct lpfc_hba *phba)
1418 {
1419         (*phba->lpfc_handle_eratt)(phba);
1420 }
1421
1422 /**
1423  * lpfc_handle_latt - The HBA link event handler
1424  * @phba: pointer to lpfc hba data structure.
1425  *
1426  * This routine is invoked from the worker thread to handle a HBA host
1427  * attention link event.
1428  **/
1429 void
1430 lpfc_handle_latt(struct lpfc_hba *phba)
1431 {
1432         struct lpfc_vport *vport = phba->pport;
1433         struct lpfc_sli   *psli = &phba->sli;
1434         LPFC_MBOXQ_t *pmb;
1435         volatile uint32_t control;
1436         struct lpfc_dmabuf *mp;
1437         int rc = 0;
1438
1439         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1440         if (!pmb) {
1441                 rc = 1;
1442                 goto lpfc_handle_latt_err_exit;
1443         }
1444
1445         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1446         if (!mp) {
1447                 rc = 2;
1448                 goto lpfc_handle_latt_free_pmb;
1449         }
1450
1451         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1452         if (!mp->virt) {
1453                 rc = 3;
1454                 goto lpfc_handle_latt_free_mp;
1455         }
1456
1457         /* Cleanup any outstanding ELS commands */
1458         lpfc_els_flush_all_cmd(phba);
1459
1460         psli->slistat.link_event++;
1461         lpfc_read_la(phba, pmb, mp);
1462         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1463         pmb->vport = vport;
1464         /* Block ELS IOCBs until we have processed this mbox command */
1465         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1466         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1467         if (rc == MBX_NOT_FINISHED) {
1468                 rc = 4;
1469                 goto lpfc_handle_latt_free_mbuf;
1470         }
1471
1472         /* Clear Link Attention in HA REG */
1473         spin_lock_irq(&phba->hbalock);
1474         writel(HA_LATT, phba->HAregaddr);
1475         readl(phba->HAregaddr); /* flush */
1476         spin_unlock_irq(&phba->hbalock);
1477
1478         return;
1479
1480 lpfc_handle_latt_free_mbuf:
1481         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1482         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1483 lpfc_handle_latt_free_mp:
1484         kfree(mp);
1485 lpfc_handle_latt_free_pmb:
1486         mempool_free(pmb, phba->mbox_mem_pool);
1487 lpfc_handle_latt_err_exit:
1488         /* Enable Link attention interrupts */
1489         spin_lock_irq(&phba->hbalock);
1490         psli->sli_flag |= LPFC_PROCESS_LA;
1491         control = readl(phba->HCregaddr);
1492         control |= HC_LAINT_ENA;
1493         writel(control, phba->HCregaddr);
1494         readl(phba->HCregaddr); /* flush */
1495
1496         /* Clear Link Attention in HA REG */
1497         writel(HA_LATT, phba->HAregaddr);
1498         readl(phba->HAregaddr); /* flush */
1499         spin_unlock_irq(&phba->hbalock);
1500         lpfc_linkdown(phba);
1501         phba->link_state = LPFC_HBA_ERROR;
1502
1503         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1504                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1505
1506         return;
1507 }
1508
1509 /**
1510  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1511  * @phba: pointer to lpfc hba data structure.
1512  * @vpd: pointer to the vital product data.
1513  * @len: length of the vital product data in bytes.
1514  *
1515  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1516  * an array of characters. In this routine, the ModelName, ProgramType, and
1517  * ModelDesc, etc. fields of the phba data structure will be populated.
1518  *
1519  * Return codes
1520  *   0 - pointer to the VPD passed in is NULL
1521  *   1 - success
1522  **/
1523 int
1524 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1525 {
1526         uint8_t lenlo, lenhi;
1527         int Length;
1528         int i, j;
1529         int finished = 0;
1530         int index = 0;
1531
1532         if (!vpd)
1533                 return 0;
1534
1535         /* Vital Product */
1536         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1537                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1538                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1539                         (uint32_t) vpd[3]);
1540         while (!finished && (index < (len - 4))) {
1541                 switch (vpd[index]) {
1542                 case 0x82:
1543                 case 0x91:
1544                         index += 1;
1545                         lenlo = vpd[index];
1546                         index += 1;
1547                         lenhi = vpd[index];
1548                         index += 1;
1549                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1550                         index += i;
1551                         break;
1552                 case 0x90:
1553                         index += 1;
1554                         lenlo = vpd[index];
1555                         index += 1;
1556                         lenhi = vpd[index];
1557                         index += 1;
1558                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1559                         if (Length > len - index)
1560                                 Length = len - index;
1561                         while (Length > 0) {
1562                         /* Look for Serial Number */
1563                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1564                                 index += 2;
1565                                 i = vpd[index];
1566                                 index += 1;
1567                                 j = 0;
1568                                 Length -= (3+i);
1569                                 while(i--) {
1570                                         phba->SerialNumber[j++] = vpd[index++];
1571                                         if (j == 31)
1572                                                 break;
1573                                 }
1574                                 phba->SerialNumber[j] = 0;
1575                                 continue;
1576                         }
1577                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1578                                 phba->vpd_flag |= VPD_MODEL_DESC;
1579                                 index += 2;
1580                                 i = vpd[index];
1581                                 index += 1;
1582                                 j = 0;
1583                                 Length -= (3+i);
1584                                 while(i--) {
1585                                         phba->ModelDesc[j++] = vpd[index++];
1586                                         if (j == 255)
1587                                                 break;
1588                                 }
1589                                 phba->ModelDesc[j] = 0;
1590                                 continue;
1591                         }
1592                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1593                                 phba->vpd_flag |= VPD_MODEL_NAME;
1594                                 index += 2;
1595                                 i = vpd[index];
1596                                 index += 1;
1597                                 j = 0;
1598                                 Length -= (3+i);
1599                                 while(i--) {
1600                                         phba->ModelName[j++] = vpd[index++];
1601                                         if (j == 79)
1602                                                 break;
1603                                 }
1604                                 phba->ModelName[j] = 0;
1605                                 continue;
1606                         }
1607                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1608                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1609                                 index += 2;
1610                                 i = vpd[index];
1611                                 index += 1;
1612                                 j = 0;
1613                                 Length -= (3+i);
1614                                 while(i--) {
1615                                         phba->ProgramType[j++] = vpd[index++];
1616                                         if (j == 255)
1617                                                 break;
1618                                 }
1619                                 phba->ProgramType[j] = 0;
1620                                 continue;
1621                         }
1622                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1623                                 phba->vpd_flag |= VPD_PORT;
1624                                 index += 2;
1625                                 i = vpd[index];
1626                                 index += 1;
1627                                 j = 0;
1628                                 Length -= (3+i);
1629                                 while(i--) {
1630                                 phba->Port[j++] = vpd[index++];
1631                                 if (j == 19)
1632                                         break;
1633                                 }
1634                                 phba->Port[j] = 0;
1635                                 continue;
1636                         }
1637                         else {
1638                                 index += 2;
1639                                 i = vpd[index];
1640                                 index += 1;
1641                                 index += i;
1642                                 Length -= (3 + i);
1643                         }
1644                 }
1645                 finished = 0;
1646                 break;
1647                 case 0x78:
1648                         finished = 1;
1649                         break;
1650                 default:
1651                         index ++;
1652                         break;
1653                 }
1654         }
1655
1656         return(1);
1657 }
1658
1659 /**
1660  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1661  * @phba: pointer to lpfc hba data structure.
1662  * @mdp: pointer to the data structure to hold the derived model name.
1663  * @descp: pointer to the data structure to hold the derived description.
1664  *
1665  * This routine retrieves HBA's description based on its registered PCI device
1666  * ID. The @descp passed into this function points to an array of 256 chars. It
1667  * shall be returned with the model name, maximum speed, and the host bus type.
1668  * The @mdp passed into this function points to an array of 80 chars. When the
1669  * function returns, the @mdp will be filled with the model name.
1670  **/
1671 static void
1672 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1673 {
1674         lpfc_vpd_t *vp;
1675         uint16_t dev_id = phba->pcidev->device;
1676         int max_speed;
1677         int GE = 0;
1678         int oneConnect = 0; /* default is not a oneConnect */
1679         struct {
1680                 char *name;
1681                 char *bus;
1682                 char *function;
1683         } m = {"<Unknown>", "", ""};
1684
1685         if (mdp && mdp[0] != '\0'
1686                 && descp && descp[0] != '\0')
1687                 return;
1688
1689         if (phba->lmt & LMT_10Gb)
1690                 max_speed = 10;
1691         else if (phba->lmt & LMT_8Gb)
1692                 max_speed = 8;
1693         else if (phba->lmt & LMT_4Gb)
1694                 max_speed = 4;
1695         else if (phba->lmt & LMT_2Gb)
1696                 max_speed = 2;
1697         else
1698                 max_speed = 1;
1699
1700         vp = &phba->vpd;
1701
1702         switch (dev_id) {
1703         case PCI_DEVICE_ID_FIREFLY:
1704                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1705                 break;
1706         case PCI_DEVICE_ID_SUPERFLY:
1707                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1708                         m = (typeof(m)){"LP7000", "PCI",
1709                                         "Fibre Channel Adapter"};
1710                 else
1711                         m = (typeof(m)){"LP7000E", "PCI",
1712                                         "Fibre Channel Adapter"};
1713                 break;
1714         case PCI_DEVICE_ID_DRAGONFLY:
1715                 m = (typeof(m)){"LP8000", "PCI",
1716                                 "Fibre Channel Adapter"};
1717                 break;
1718         case PCI_DEVICE_ID_CENTAUR:
1719                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1720                         m = (typeof(m)){"LP9002", "PCI",
1721                                         "Fibre Channel Adapter"};
1722                 else
1723                         m = (typeof(m)){"LP9000", "PCI",
1724                                         "Fibre Channel Adapter"};
1725                 break;
1726         case PCI_DEVICE_ID_RFLY:
1727                 m = (typeof(m)){"LP952", "PCI",
1728                                 "Fibre Channel Adapter"};
1729                 break;
1730         case PCI_DEVICE_ID_PEGASUS:
1731                 m = (typeof(m)){"LP9802", "PCI-X",
1732                                 "Fibre Channel Adapter"};
1733                 break;
1734         case PCI_DEVICE_ID_THOR:
1735                 m = (typeof(m)){"LP10000", "PCI-X",
1736                                 "Fibre Channel Adapter"};
1737                 break;
1738         case PCI_DEVICE_ID_VIPER:
1739                 m = (typeof(m)){"LPX1000",  "PCI-X",
1740                                 "Fibre Channel Adapter"};
1741                 break;
1742         case PCI_DEVICE_ID_PFLY:
1743                 m = (typeof(m)){"LP982", "PCI-X",
1744                                 "Fibre Channel Adapter"};
1745                 break;
1746         case PCI_DEVICE_ID_TFLY:
1747                 m = (typeof(m)){"LP1050", "PCI-X",
1748                                 "Fibre Channel Adapter"};
1749                 break;
1750         case PCI_DEVICE_ID_HELIOS:
1751                 m = (typeof(m)){"LP11000", "PCI-X2",
1752                                 "Fibre Channel Adapter"};
1753                 break;
1754         case PCI_DEVICE_ID_HELIOS_SCSP:
1755                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1756                                 "Fibre Channel Adapter"};
1757                 break;
1758         case PCI_DEVICE_ID_HELIOS_DCSP:
1759                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1760                                 "Fibre Channel Adapter"};
1761                 break;
1762         case PCI_DEVICE_ID_NEPTUNE:
1763                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1764                 break;
1765         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1766                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1767                 break;
1768         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1769                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1770                 break;
1771         case PCI_DEVICE_ID_BMID:
1772                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1773                 break;
1774         case PCI_DEVICE_ID_BSMB:
1775                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1776                 break;
1777         case PCI_DEVICE_ID_ZEPHYR:
1778                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1779                 break;
1780         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1781                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1782                 break;
1783         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1784                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1785                 GE = 1;
1786                 break;
1787         case PCI_DEVICE_ID_ZMID:
1788                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1789                 break;
1790         case PCI_DEVICE_ID_ZSMB:
1791                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1792                 break;
1793         case PCI_DEVICE_ID_LP101:
1794                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1795                 break;
1796         case PCI_DEVICE_ID_LP10000S:
1797                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1798                 break;
1799         case PCI_DEVICE_ID_LP11000S:
1800                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1801                 break;
1802         case PCI_DEVICE_ID_LPE11000S:
1803                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_SAT:
1806                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1807                 break;
1808         case PCI_DEVICE_ID_SAT_MID:
1809                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1810                 break;
1811         case PCI_DEVICE_ID_SAT_SMB:
1812                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1813                 break;
1814         case PCI_DEVICE_ID_SAT_DCSP:
1815                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1816                 break;
1817         case PCI_DEVICE_ID_SAT_SCSP:
1818                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1819                 break;
1820         case PCI_DEVICE_ID_SAT_S:
1821                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1822                 break;
1823         case PCI_DEVICE_ID_HORNET:
1824                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1825                 GE = 1;
1826                 break;
1827         case PCI_DEVICE_ID_PROTEUS_VF:
1828                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1829                                 "Fibre Channel Adapter"};
1830                 break;
1831         case PCI_DEVICE_ID_PROTEUS_PF:
1832                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1833                                 "Fibre Channel Adapter"};
1834                 break;
1835         case PCI_DEVICE_ID_PROTEUS_S:
1836                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1837                                 "Fibre Channel Adapter"};
1838                 break;
1839         case PCI_DEVICE_ID_TIGERSHARK:
1840                 oneConnect = 1;
1841                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1842                 break;
1843         case PCI_DEVICE_ID_TOMCAT:
1844                 oneConnect = 1;
1845                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1846                 break;
1847         case PCI_DEVICE_ID_FALCON:
1848                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1849                                 "EmulexSecure Fibre"};
1850                 break;
1851         case PCI_DEVICE_ID_BALIUS:
1852                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1853                                 "Fibre Channel Adapter"};
1854                 break;
1855         default:
1856                 m = (typeof(m)){"Unknown", "", ""};
1857                 break;
1858         }
1859
1860         if (mdp && mdp[0] == '\0')
1861                 snprintf(mdp, 79,"%s", m.name);
1862         /* oneConnect hba requires special processing, they are all initiators
1863          * and we put the port number on the end
1864          */
1865         if (descp && descp[0] == '\0') {
1866                 if (oneConnect)
1867                         snprintf(descp, 255,
1868                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1869                                 m.name, m.function,
1870                                 phba->Port);
1871                 else
1872                         snprintf(descp, 255,
1873                                 "Emulex %s %d%s %s %s",
1874                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1875                                 m.bus, m.function);
1876         }
1877 }
1878
1879 /**
1880  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1881  * @phba: pointer to lpfc hba data structure.
1882  * @pring: pointer to a IOCB ring.
1883  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1884  *
1885  * This routine posts a given number of IOCBs with the associated DMA buffer
1886  * descriptors specified by the cnt argument to the given IOCB ring.
1887  *
1888  * Return codes
1889  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1890  **/
1891 int
1892 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1893 {
1894         IOCB_t *icmd;
1895         struct lpfc_iocbq *iocb;
1896         struct lpfc_dmabuf *mp1, *mp2;
1897
1898         cnt += pring->missbufcnt;
1899
1900         /* While there are buffers to post */
1901         while (cnt > 0) {
1902                 /* Allocate buffer for  command iocb */
1903                 iocb = lpfc_sli_get_iocbq(phba);
1904                 if (iocb == NULL) {
1905                         pring->missbufcnt = cnt;
1906                         return cnt;
1907                 }
1908                 icmd = &iocb->iocb;
1909
1910                 /* 2 buffers can be posted per command */
1911                 /* Allocate buffer to post */
1912                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1913                 if (mp1)
1914                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1915                 if (!mp1 || !mp1->virt) {
1916                         kfree(mp1);
1917                         lpfc_sli_release_iocbq(phba, iocb);
1918                         pring->missbufcnt = cnt;
1919                         return cnt;
1920                 }
1921
1922                 INIT_LIST_HEAD(&mp1->list);
1923                 /* Allocate buffer to post */
1924                 if (cnt > 1) {
1925                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1926                         if (mp2)
1927                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1928                                                             &mp2->phys);
1929                         if (!mp2 || !mp2->virt) {
1930                                 kfree(mp2);
1931                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1932                                 kfree(mp1);
1933                                 lpfc_sli_release_iocbq(phba, iocb);
1934                                 pring->missbufcnt = cnt;
1935                                 return cnt;
1936                         }
1937
1938                         INIT_LIST_HEAD(&mp2->list);
1939                 } else {
1940                         mp2 = NULL;
1941                 }
1942
1943                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1944                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1945                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1946                 icmd->ulpBdeCount = 1;
1947                 cnt--;
1948                 if (mp2) {
1949                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1950                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1951                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1952                         cnt--;
1953                         icmd->ulpBdeCount = 2;
1954                 }
1955
1956                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1957                 icmd->ulpLe = 1;
1958
1959                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1960                     IOCB_ERROR) {
1961                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1962                         kfree(mp1);
1963                         cnt++;
1964                         if (mp2) {
1965                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1966                                 kfree(mp2);
1967                                 cnt++;
1968                         }
1969                         lpfc_sli_release_iocbq(phba, iocb);
1970                         pring->missbufcnt = cnt;
1971                         return cnt;
1972                 }
1973                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1974                 if (mp2)
1975                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1976         }
1977         pring->missbufcnt = 0;
1978         return 0;
1979 }
1980
1981 /**
1982  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1983  * @phba: pointer to lpfc hba data structure.
1984  *
1985  * This routine posts initial receive IOCB buffers to the ELS ring. The
1986  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1987  * set to 64 IOCBs.
1988  *
1989  * Return codes
1990  *   0 - success (currently always success)
1991  **/
1992 static int
1993 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1994 {
1995         struct lpfc_sli *psli = &phba->sli;
1996
1997         /* Ring 0, ELS / CT buffers */
1998         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1999         /* Ring 2 - FCP no buffers needed */
2000
2001         return 0;
2002 }
2003
2004 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2005
2006 /**
2007  * lpfc_sha_init - Set up initial array of hash table entries
2008  * @HashResultPointer: pointer to an array as hash table.
2009  *
2010  * This routine sets up the initial values to the array of hash table entries
2011  * for the LC HBAs.
2012  **/
2013 static void
2014 lpfc_sha_init(uint32_t * HashResultPointer)
2015 {
2016         HashResultPointer[0] = 0x67452301;
2017         HashResultPointer[1] = 0xEFCDAB89;
2018         HashResultPointer[2] = 0x98BADCFE;
2019         HashResultPointer[3] = 0x10325476;
2020         HashResultPointer[4] = 0xC3D2E1F0;
2021 }
2022
2023 /**
2024  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2025  * @HashResultPointer: pointer to an initial/result hash table.
2026  * @HashWorkingPointer: pointer to an working hash table.
2027  *
2028  * This routine iterates an initial hash table pointed by @HashResultPointer
2029  * with the values from the working hash table pointeed by @HashWorkingPointer.
2030  * The results are putting back to the initial hash table, returned through
2031  * the @HashResultPointer as the result hash table.
2032  **/
2033 static void
2034 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2035 {
2036         int t;
2037         uint32_t TEMP;
2038         uint32_t A, B, C, D, E;
2039         t = 16;
2040         do {
2041                 HashWorkingPointer[t] =
2042                     S(1,
2043                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2044                                                                      8] ^
2045                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2046         } while (++t <= 79);
2047         t = 0;
2048         A = HashResultPointer[0];
2049         B = HashResultPointer[1];
2050         C = HashResultPointer[2];
2051         D = HashResultPointer[3];
2052         E = HashResultPointer[4];
2053
2054         do {
2055                 if (t < 20) {
2056                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2057                 } else if (t < 40) {
2058                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2059                 } else if (t < 60) {
2060                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2061                 } else {
2062                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2063                 }
2064                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2065                 E = D;
2066                 D = C;
2067                 C = S(30, B);
2068                 B = A;
2069                 A = TEMP;
2070         } while (++t <= 79);
2071
2072         HashResultPointer[0] += A;
2073         HashResultPointer[1] += B;
2074         HashResultPointer[2] += C;
2075         HashResultPointer[3] += D;
2076         HashResultPointer[4] += E;
2077
2078 }
2079
2080 /**
2081  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2082  * @RandomChallenge: pointer to the entry of host challenge random number array.
2083  * @HashWorking: pointer to the entry of the working hash array.
2084  *
2085  * This routine calculates the working hash array referred by @HashWorking
2086  * from the challenge random numbers associated with the host, referred by
2087  * @RandomChallenge. The result is put into the entry of the working hash
2088  * array and returned by reference through @HashWorking.
2089  **/
2090 static void
2091 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2092 {
2093         *HashWorking = (*RandomChallenge ^ *HashWorking);
2094 }
2095
2096 /**
2097  * lpfc_hba_init - Perform special handling for LC HBA initialization
2098  * @phba: pointer to lpfc hba data structure.
2099  * @hbainit: pointer to an array of unsigned 32-bit integers.
2100  *
2101  * This routine performs the special handling for LC HBA initialization.
2102  **/
2103 void
2104 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2105 {
2106         int t;
2107         uint32_t *HashWorking;
2108         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2109
2110         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2111         if (!HashWorking)
2112                 return;
2113
2114         HashWorking[0] = HashWorking[78] = *pwwnn++;
2115         HashWorking[1] = HashWorking[79] = *pwwnn;
2116
2117         for (t = 0; t < 7; t++)
2118                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2119
2120         lpfc_sha_init(hbainit);
2121         lpfc_sha_iterate(hbainit, HashWorking);
2122         kfree(HashWorking);
2123 }
2124
2125 /**
2126  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2127  * @vport: pointer to a virtual N_Port data structure.
2128  *
2129  * This routine performs the necessary cleanups before deleting the @vport.
2130  * It invokes the discovery state machine to perform necessary state
2131  * transitions and to release the ndlps associated with the @vport. Note,
2132  * the physical port is treated as @vport 0.
2133  **/
2134 void
2135 lpfc_cleanup(struct lpfc_vport *vport)
2136 {
2137         struct lpfc_hba   *phba = vport->phba;
2138         struct lpfc_nodelist *ndlp, *next_ndlp;
2139         int i = 0;
2140
2141         if (phba->link_state > LPFC_LINK_DOWN)
2142                 lpfc_port_link_failure(vport);
2143
2144         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2145                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2146                         ndlp = lpfc_enable_node(vport, ndlp,
2147                                                 NLP_STE_UNUSED_NODE);
2148                         if (!ndlp)
2149                                 continue;
2150                         spin_lock_irq(&phba->ndlp_lock);
2151                         NLP_SET_FREE_REQ(ndlp);
2152                         spin_unlock_irq(&phba->ndlp_lock);
2153                         /* Trigger the release of the ndlp memory */
2154                         lpfc_nlp_put(ndlp);
2155                         continue;
2156                 }
2157                 spin_lock_irq(&phba->ndlp_lock);
2158                 if (NLP_CHK_FREE_REQ(ndlp)) {
2159                         /* The ndlp should not be in memory free mode already */
2160                         spin_unlock_irq(&phba->ndlp_lock);
2161                         continue;
2162                 } else
2163                         /* Indicate request for freeing ndlp memory */
2164                         NLP_SET_FREE_REQ(ndlp);
2165                 spin_unlock_irq(&phba->ndlp_lock);
2166
2167                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2168                     ndlp->nlp_DID == Fabric_DID) {
2169                         /* Just free up ndlp with Fabric_DID for vports */
2170                         lpfc_nlp_put(ndlp);
2171                         continue;
2172                 }
2173
2174                 if (ndlp->nlp_type & NLP_FABRIC)
2175                         lpfc_disc_state_machine(vport, ndlp, NULL,
2176                                         NLP_EVT_DEVICE_RECOVERY);
2177
2178                 lpfc_disc_state_machine(vport, ndlp, NULL,
2179                                              NLP_EVT_DEVICE_RM);
2180
2181         }
2182
2183         /* At this point, ALL ndlp's should be gone
2184          * because of the previous NLP_EVT_DEVICE_RM.
2185          * Lets wait for this to happen, if needed.
2186          */
2187         while (!list_empty(&vport->fc_nodes)) {
2188                 if (i++ > 3000) {
2189                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2190                                 "0233 Nodelist not empty\n");
2191                         list_for_each_entry_safe(ndlp, next_ndlp,
2192                                                 &vport->fc_nodes, nlp_listp) {
2193                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2194                                                 LOG_NODE,
2195                                                 "0282 did:x%x ndlp:x%p "
2196                                                 "usgmap:x%x refcnt:%d\n",
2197                                                 ndlp->nlp_DID, (void *)ndlp,
2198                                                 ndlp->nlp_usg_map,
2199                                                 atomic_read(
2200                                                         &ndlp->kref.refcount));
2201                         }
2202                         break;
2203                 }
2204
2205                 /* Wait for any activity on ndlps to settle */
2206                 msleep(10);
2207         }
2208 }
2209
2210 /**
2211  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2212  * @vport: pointer to a virtual N_Port data structure.
2213  *
2214  * This routine stops all the timers associated with a @vport. This function
2215  * is invoked before disabling or deleting a @vport. Note that the physical
2216  * port is treated as @vport 0.
2217  **/
2218 void
2219 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2220 {
2221         del_timer_sync(&vport->els_tmofunc);
2222         del_timer_sync(&vport->fc_fdmitmo);
2223         lpfc_can_disctmo(vport);
2224         return;
2225 }
2226
2227 /**
2228  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2229  * @phba: pointer to lpfc hba data structure.
2230  *
2231  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2232  * caller of this routine should already hold the host lock.
2233  **/
2234 void
2235 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2236 {
2237         /* Clear pending FCF rediscovery wait and failover in progress flags */
2238         phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
2239                                 FCF_DEAD_DISC |
2240                                 FCF_ACVL_DISC);
2241         /* Now, try to stop the timer */
2242         del_timer(&phba->fcf.redisc_wait);
2243 }
2244
2245 /**
2246  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2247  * @phba: pointer to lpfc hba data structure.
2248  *
2249  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2250  * checks whether the FCF rediscovery wait timer is pending with the host
2251  * lock held before proceeding with disabling the timer and clearing the
2252  * wait timer pendig flag.
2253  **/
2254 void
2255 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2256 {
2257         spin_lock_irq(&phba->hbalock);
2258         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2259                 /* FCF rediscovery timer already fired or stopped */
2260                 spin_unlock_irq(&phba->hbalock);
2261                 return;
2262         }
2263         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2264         spin_unlock_irq(&phba->hbalock);
2265 }
2266
2267 /**
2268  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2269  * @phba: pointer to lpfc hba data structure.
2270  *
2271  * This routine stops all the timers associated with a HBA. This function is
2272  * invoked before either putting a HBA offline or unloading the driver.
2273  **/
2274 void
2275 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2276 {
2277         lpfc_stop_vport_timers(phba->pport);
2278         del_timer_sync(&phba->sli.mbox_tmo);
2279         del_timer_sync(&phba->fabric_block_timer);
2280         del_timer_sync(&phba->eratt_poll);
2281         del_timer_sync(&phba->hb_tmofunc);
2282         phba->hb_outstanding = 0;
2283
2284         switch (phba->pci_dev_grp) {
2285         case LPFC_PCI_DEV_LP:
2286                 /* Stop any LightPulse device specific driver timers */
2287                 del_timer_sync(&phba->fcp_poll_timer);
2288                 break;
2289         case LPFC_PCI_DEV_OC:
2290                 /* Stop any OneConnect device sepcific driver timers */
2291                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2292                 break;
2293         default:
2294                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2295                                 "0297 Invalid device group (x%x)\n",
2296                                 phba->pci_dev_grp);
2297                 break;
2298         }
2299         return;
2300 }
2301
2302 /**
2303  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2304  * @phba: pointer to lpfc hba data structure.
2305  *
2306  * This routine marks a HBA's management interface as blocked. Once the HBA's
2307  * management interface is marked as blocked, all the user space access to
2308  * the HBA, whether they are from sysfs interface or libdfc interface will
2309  * all be blocked. The HBA is set to block the management interface when the
2310  * driver prepares the HBA interface for online or offline.
2311  **/
2312 static void
2313 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2314 {
2315         unsigned long iflag;
2316         uint8_t actcmd = MBX_HEARTBEAT;
2317         unsigned long timeout;
2318
2319
2320         spin_lock_irqsave(&phba->hbalock, iflag);
2321         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2322         if (phba->sli.mbox_active)
2323                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2324         spin_unlock_irqrestore(&phba->hbalock, iflag);
2325         /* Determine how long we might wait for the active mailbox
2326          * command to be gracefully completed by firmware.
2327          */
2328         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2329                         jiffies;
2330         /* Wait for the outstnading mailbox command to complete */
2331         while (phba->sli.mbox_active) {
2332                 /* Check active mailbox complete status every 2ms */
2333                 msleep(2);
2334                 if (time_after(jiffies, timeout)) {
2335                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2336                                 "2813 Mgmt IO is Blocked %x "
2337                                 "- mbox cmd %x still active\n",
2338                                 phba->sli.sli_flag, actcmd);
2339                         break;
2340                 }
2341         }
2342 }
2343
2344 /**
2345  * lpfc_online - Initialize and bring a HBA online
2346  * @phba: pointer to lpfc hba data structure.
2347  *
2348  * This routine initializes the HBA and brings a HBA online. During this
2349  * process, the management interface is blocked to prevent user space access
2350  * to the HBA interfering with the driver initialization.
2351  *
2352  * Return codes
2353  *   0 - successful
2354  *   1 - failed
2355  **/
2356 int
2357 lpfc_online(struct lpfc_hba *phba)
2358 {
2359         struct lpfc_vport *vport;
2360         struct lpfc_vport **vports;
2361         int i;
2362
2363         if (!phba)
2364                 return 0;
2365         vport = phba->pport;
2366
2367         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2368                 return 0;
2369
2370         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2371                         "0458 Bring Adapter online\n");
2372
2373         lpfc_block_mgmt_io(phba);
2374
2375         if (!lpfc_sli_queue_setup(phba)) {
2376                 lpfc_unblock_mgmt_io(phba);
2377                 return 1;
2378         }
2379
2380         if (phba->sli_rev == LPFC_SLI_REV4) {
2381                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2382                         lpfc_unblock_mgmt_io(phba);
2383                         return 1;
2384                 }
2385         } else {
2386                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2387                         lpfc_unblock_mgmt_io(phba);
2388                         return 1;
2389                 }
2390         }
2391
2392         vports = lpfc_create_vport_work_array(phba);
2393         if (vports != NULL)
2394                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2395                         struct Scsi_Host *shost;
2396                         shost = lpfc_shost_from_vport(vports[i]);
2397                         spin_lock_irq(shost->host_lock);
2398                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2399                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2400                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2401                         if (phba->sli_rev == LPFC_SLI_REV4)
2402                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2403                         spin_unlock_irq(shost->host_lock);
2404                 }
2405                 lpfc_destroy_vport_work_array(phba, vports);
2406
2407         lpfc_unblock_mgmt_io(phba);
2408         return 0;
2409 }
2410
2411 /**
2412  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2413  * @phba: pointer to lpfc hba data structure.
2414  *
2415  * This routine marks a HBA's management interface as not blocked. Once the
2416  * HBA's management interface is marked as not blocked, all the user space
2417  * access to the HBA, whether they are from sysfs interface or libdfc
2418  * interface will be allowed. The HBA is set to block the management interface
2419  * when the driver prepares the HBA interface for online or offline and then
2420  * set to unblock the management interface afterwards.
2421  **/
2422 void
2423 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2424 {
2425         unsigned long iflag;
2426
2427         spin_lock_irqsave(&phba->hbalock, iflag);
2428         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2429         spin_unlock_irqrestore(&phba->hbalock, iflag);
2430 }
2431
2432 /**
2433  * lpfc_offline_prep - Prepare a HBA to be brought offline
2434  * @phba: pointer to lpfc hba data structure.
2435  *
2436  * This routine is invoked to prepare a HBA to be brought offline. It performs
2437  * unregistration login to all the nodes on all vports and flushes the mailbox
2438  * queue to make it ready to be brought offline.
2439  **/
2440 void
2441 lpfc_offline_prep(struct lpfc_hba * phba)
2442 {
2443         struct lpfc_vport *vport = phba->pport;
2444         struct lpfc_nodelist  *ndlp, *next_ndlp;
2445         struct lpfc_vport **vports;
2446         struct Scsi_Host *shost;
2447         int i;
2448
2449         if (vport->fc_flag & FC_OFFLINE_MODE)
2450                 return;
2451
2452         lpfc_block_mgmt_io(phba);
2453
2454         lpfc_linkdown(phba);
2455
2456         /* Issue an unreg_login to all nodes on all vports */
2457         vports = lpfc_create_vport_work_array(phba);
2458         if (vports != NULL) {
2459                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2460                         if (vports[i]->load_flag & FC_UNLOADING)
2461                                 continue;
2462                         shost = lpfc_shost_from_vport(vports[i]);
2463                         spin_lock_irq(shost->host_lock);
2464                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2465                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2466                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2467                         spin_unlock_irq(shost->host_lock);
2468
2469                         shost = lpfc_shost_from_vport(vports[i]);
2470                         list_for_each_entry_safe(ndlp, next_ndlp,
2471                                                  &vports[i]->fc_nodes,
2472                                                  nlp_listp) {
2473                                 if (!NLP_CHK_NODE_ACT(ndlp))
2474                                         continue;
2475                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2476                                         continue;
2477                                 if (ndlp->nlp_type & NLP_FABRIC) {
2478                                         lpfc_disc_state_machine(vports[i], ndlp,
2479                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2480                                         lpfc_disc_state_machine(vports[i], ndlp,
2481                                                 NULL, NLP_EVT_DEVICE_RM);
2482                                 }
2483                                 spin_lock_irq(shost->host_lock);
2484                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2485                                 spin_unlock_irq(shost->host_lock);
2486                                 lpfc_unreg_rpi(vports[i], ndlp);
2487                         }
2488                 }
2489         }
2490         lpfc_destroy_vport_work_array(phba, vports);
2491
2492         lpfc_sli_mbox_sys_shutdown(phba);
2493 }
2494
2495 /**
2496  * lpfc_offline - Bring a HBA offline
2497  * @phba: pointer to lpfc hba data structure.
2498  *
2499  * This routine actually brings a HBA offline. It stops all the timers
2500  * associated with the HBA, brings down the SLI layer, and eventually
2501  * marks the HBA as in offline state for the upper layer protocol.
2502  **/
2503 void
2504 lpfc_offline(struct lpfc_hba *phba)
2505 {
2506         struct Scsi_Host  *shost;
2507         struct lpfc_vport **vports;
2508         int i;
2509
2510         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2511                 return;
2512
2513         /* stop port and all timers associated with this hba */
2514         lpfc_stop_port(phba);
2515         vports = lpfc_create_vport_work_array(phba);
2516         if (vports != NULL)
2517                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2518                         lpfc_stop_vport_timers(vports[i]);
2519         lpfc_destroy_vport_work_array(phba, vports);
2520         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2521                         "0460 Bring Adapter offline\n");
2522         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2523            now.  */
2524         lpfc_sli_hba_down(phba);
2525         spin_lock_irq(&phba->hbalock);
2526         phba->work_ha = 0;
2527         spin_unlock_irq(&phba->hbalock);
2528         vports = lpfc_create_vport_work_array(phba);
2529         if (vports != NULL)
2530                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2531                         shost = lpfc_shost_from_vport(vports[i]);
2532                         spin_lock_irq(shost->host_lock);
2533                         vports[i]->work_port_events = 0;
2534                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2535                         spin_unlock_irq(shost->host_lock);
2536                 }
2537         lpfc_destroy_vport_work_array(phba, vports);
2538 }
2539
2540 /**
2541  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2542  * @phba: pointer to lpfc hba data structure.
2543  *
2544  * This routine is to free all the SCSI buffers and IOCBs from the driver
2545  * list back to kernel. It is called from lpfc_pci_remove_one to free
2546  * the internal resources before the device is removed from the system.
2547  *
2548  * Return codes
2549  *   0 - successful (for now, it always returns 0)
2550  **/
2551 static int
2552 lpfc_scsi_free(struct lpfc_hba *phba)
2553 {
2554         struct lpfc_scsi_buf *sb, *sb_next;
2555         struct lpfc_iocbq *io, *io_next;
2556
2557         spin_lock_irq(&phba->hbalock);
2558         /* Release all the lpfc_scsi_bufs maintained by this host. */
2559         spin_lock(&phba->scsi_buf_list_lock);
2560         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2561                 list_del(&sb->list);
2562                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2563                               sb->dma_handle);
2564                 kfree(sb);
2565                 phba->total_scsi_bufs--;
2566         }
2567         spin_unlock(&phba->scsi_buf_list_lock);
2568
2569         /* Release all the lpfc_iocbq entries maintained by this host. */
2570         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2571                 list_del(&io->list);
2572                 kfree(io);
2573                 phba->total_iocbq_bufs--;
2574         }
2575         spin_unlock_irq(&phba->hbalock);
2576         return 0;
2577 }
2578
2579 /**
2580  * lpfc_create_port - Create an FC port
2581  * @phba: pointer to lpfc hba data structure.
2582  * @instance: a unique integer ID to this FC port.
2583  * @dev: pointer to the device data structure.
2584  *
2585  * This routine creates a FC port for the upper layer protocol. The FC port
2586  * can be created on top of either a physical port or a virtual port provided
2587  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2588  * and associates the FC port created before adding the shost into the SCSI
2589  * layer.
2590  *
2591  * Return codes
2592  *   @vport - pointer to the virtual N_Port data structure.
2593  *   NULL - port create failed.
2594  **/
2595 struct lpfc_vport *
2596 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2597 {
2598         struct lpfc_vport *vport;
2599         struct Scsi_Host  *shost;
2600         int error = 0;
2601
2602         if (dev != &phba->pcidev->dev)
2603                 shost = scsi_host_alloc(&lpfc_vport_template,
2604                                         sizeof(struct lpfc_vport));
2605         else
2606                 shost = scsi_host_alloc(&lpfc_template,
2607                                         sizeof(struct lpfc_vport));
2608         if (!shost)
2609                 goto out;
2610
2611         vport = (struct lpfc_vport *) shost->hostdata;
2612         vport->phba = phba;
2613         vport->load_flag |= FC_LOADING;
2614         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2615         vport->fc_rscn_flush = 0;
2616
2617         lpfc_get_vport_cfgparam(vport);
2618         shost->unique_id = instance;
2619         shost->max_id = LPFC_MAX_TARGET;
2620         shost->max_lun = vport->cfg_max_luns;
2621         shost->this_id = -1;
2622         shost->max_cmd_len = 16;
2623         if (phba->sli_rev == LPFC_SLI_REV4) {
2624                 shost->dma_boundary =
2625                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2626                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2627         }
2628
2629         /*
2630          * Set initial can_queue value since 0 is no longer supported and
2631          * scsi_add_host will fail. This will be adjusted later based on the
2632          * max xri value determined in hba setup.
2633          */
2634         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2635         if (dev != &phba->pcidev->dev) {
2636                 shost->transportt = lpfc_vport_transport_template;
2637                 vport->port_type = LPFC_NPIV_PORT;
2638         } else {
2639                 shost->transportt = lpfc_transport_template;
2640                 vport->port_type = LPFC_PHYSICAL_PORT;
2641         }
2642
2643         /* Initialize all internally managed lists. */
2644         INIT_LIST_HEAD(&vport->fc_nodes);
2645         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2646         spin_lock_init(&vport->work_port_lock);
2647
2648         init_timer(&vport->fc_disctmo);
2649         vport->fc_disctmo.function = lpfc_disc_timeout;
2650         vport->fc_disctmo.data = (unsigned long)vport;
2651
2652         init_timer(&vport->fc_fdmitmo);
2653         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2654         vport->fc_fdmitmo.data = (unsigned long)vport;
2655
2656         init_timer(&vport->els_tmofunc);
2657         vport->els_tmofunc.function = lpfc_els_timeout;
2658         vport->els_tmofunc.data = (unsigned long)vport;
2659         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2660         if (error)
2661                 goto out_put_shost;
2662
2663         spin_lock_irq(&phba->hbalock);
2664         list_add_tail(&vport->listentry, &phba->port_list);
2665         spin_unlock_irq(&phba->hbalock);
2666         return vport;
2667
2668 out_put_shost:
2669         scsi_host_put(shost);
2670 out:
2671         return NULL;
2672 }
2673
2674 /**
2675  * destroy_port -  destroy an FC port
2676  * @vport: pointer to an lpfc virtual N_Port data structure.
2677  *
2678  * This routine destroys a FC port from the upper layer protocol. All the
2679  * resources associated with the port are released.
2680  **/
2681 void
2682 destroy_port(struct lpfc_vport *vport)
2683 {
2684         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2685         struct lpfc_hba  *phba = vport->phba;
2686
2687         lpfc_debugfs_terminate(vport);
2688         fc_remove_host(shost);
2689         scsi_remove_host(shost);
2690
2691         spin_lock_irq(&phba->hbalock);
2692         list_del_init(&vport->listentry);
2693         spin_unlock_irq(&phba->hbalock);
2694
2695         lpfc_cleanup(vport);
2696         return;
2697 }
2698
2699 /**
2700  * lpfc_get_instance - Get a unique integer ID
2701  *
2702  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2703  * uses the kernel idr facility to perform the task.
2704  *
2705  * Return codes:
2706  *   instance - a unique integer ID allocated as the new instance.
2707  *   -1 - lpfc get instance failed.
2708  **/
2709 int
2710 lpfc_get_instance(void)
2711 {
2712         int instance = 0;
2713
2714         /* Assign an unused number */
2715         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2716                 return -1;
2717         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2718                 return -1;
2719         return instance;
2720 }
2721
2722 /**
2723  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2724  * @shost: pointer to SCSI host data structure.
2725  * @time: elapsed time of the scan in jiffies.
2726  *
2727  * This routine is called by the SCSI layer with a SCSI host to determine
2728  * whether the scan host is finished.
2729  *
2730  * Note: there is no scan_start function as adapter initialization will have
2731  * asynchronously kicked off the link initialization.
2732  *
2733  * Return codes
2734  *   0 - SCSI host scan is not over yet.
2735  *   1 - SCSI host scan is over.
2736  **/
2737 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2738 {
2739         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2740         struct lpfc_hba   *phba = vport->phba;
2741         int stat = 0;
2742
2743         spin_lock_irq(shost->host_lock);
2744
2745         if (vport->load_flag & FC_UNLOADING) {
2746                 stat = 1;
2747                 goto finished;
2748         }
2749         if (time >= 30 * HZ) {
2750                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2751                                 "0461 Scanning longer than 30 "
2752                                 "seconds.  Continuing initialization\n");
2753                 stat = 1;
2754                 goto finished;
2755         }
2756         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2757                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2758                                 "0465 Link down longer than 15 "
2759                                 "seconds.  Continuing initialization\n");
2760                 stat = 1;
2761                 goto finished;
2762         }
2763
2764         if (vport->port_state != LPFC_VPORT_READY)
2765                 goto finished;
2766         if (vport->num_disc_nodes || vport->fc_prli_sent)
2767                 goto finished;
2768         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2769                 goto finished;
2770         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2771                 goto finished;
2772
2773         stat = 1;
2774
2775 finished:
2776         spin_unlock_irq(shost->host_lock);
2777         return stat;
2778 }
2779
2780 /**
2781  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2782  * @shost: pointer to SCSI host data structure.
2783  *
2784  * This routine initializes a given SCSI host attributes on a FC port. The
2785  * SCSI host can be either on top of a physical port or a virtual port.
2786  **/
2787 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2788 {
2789         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2790         struct lpfc_hba   *phba = vport->phba;
2791         /*
2792          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2793          */
2794
2795         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2796         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2797         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2798
2799         memset(fc_host_supported_fc4s(shost), 0,
2800                sizeof(fc_host_supported_fc4s(shost)));
2801         fc_host_supported_fc4s(shost)[2] = 1;
2802         fc_host_supported_fc4s(shost)[7] = 1;
2803
2804         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2805                                  sizeof fc_host_symbolic_name(shost));
2806
2807         fc_host_supported_speeds(shost) = 0;
2808         if (phba->lmt & LMT_10Gb)
2809                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2810         if (phba->lmt & LMT_8Gb)
2811                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2812         if (phba->lmt & LMT_4Gb)
2813                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2814         if (phba->lmt & LMT_2Gb)
2815                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2816         if (phba->lmt & LMT_1Gb)
2817                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2818
2819         fc_host_maxframe_size(shost) =
2820                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2821                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2822
2823         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2824
2825         /* This value is also unchanging */
2826         memset(fc_host_active_fc4s(shost), 0,
2827                sizeof(fc_host_active_fc4s(shost)));
2828         fc_host_active_fc4s(shost)[2] = 1;
2829         fc_host_active_fc4s(shost)[7] = 1;
2830
2831         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2832         spin_lock_irq(shost->host_lock);
2833         vport->load_flag &= ~FC_LOADING;
2834         spin_unlock_irq(shost->host_lock);
2835 }
2836
2837 /**
2838  * lpfc_stop_port_s3 - Stop SLI3 device port
2839  * @phba: pointer to lpfc hba data structure.
2840  *
2841  * This routine is invoked to stop an SLI3 device port, it stops the device
2842  * from generating interrupts and stops the device driver's timers for the
2843  * device.
2844  **/
2845 static void
2846 lpfc_stop_port_s3(struct lpfc_hba *phba)
2847 {
2848         /* Clear all interrupt enable conditions */
2849         writel(0, phba->HCregaddr);
2850         readl(phba->HCregaddr); /* flush */
2851         /* Clear all pending interrupts */
2852         writel(0xffffffff, phba->HAregaddr);
2853         readl(phba->HAregaddr); /* flush */
2854
2855         /* Reset some HBA SLI setup states */
2856         lpfc_stop_hba_timers(phba);
2857         phba->pport->work_port_events = 0;
2858 }
2859
2860 /**
2861  * lpfc_stop_port_s4 - Stop SLI4 device port
2862  * @phba: pointer to lpfc hba data structure.
2863  *
2864  * This routine is invoked to stop an SLI4 device port, it stops the device
2865  * from generating interrupts and stops the device driver's timers for the
2866  * device.
2867  **/
2868 static void
2869 lpfc_stop_port_s4(struct lpfc_hba *phba)
2870 {
2871         /* Reset some HBA SLI4 setup states */
2872         lpfc_stop_hba_timers(phba);
2873         phba->pport->work_port_events = 0;
2874         phba->sli4_hba.intr_enable = 0;
2875 }
2876
2877 /**
2878  * lpfc_stop_port - Wrapper function for stopping hba port
2879  * @phba: Pointer to HBA context object.
2880  *
2881  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2882  * the API jump table function pointer from the lpfc_hba struct.
2883  **/
2884 void
2885 lpfc_stop_port(struct lpfc_hba *phba)
2886 {
2887         phba->lpfc_stop_port(phba);
2888 }
2889
2890 /**
2891  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2892  * @phba: Pointer to hba for which this call is being executed.
2893  *
2894  * This routine starts the timer waiting for the FCF rediscovery to complete.
2895  **/
2896 void
2897 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2898 {
2899         unsigned long fcf_redisc_wait_tmo =
2900                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2901         /* Start fcf rediscovery wait period timer */
2902         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2903         spin_lock_irq(&phba->hbalock);
2904         /* Allow action to new fcf asynchronous event */
2905         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2906         /* Mark the FCF rediscovery pending state */
2907         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2908         spin_unlock_irq(&phba->hbalock);
2909 }
2910
2911 /**
2912  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2913  * @ptr: Map to lpfc_hba data structure pointer.
2914  *
2915  * This routine is invoked when waiting for FCF table rediscover has been
2916  * timed out. If new FCF record(s) has (have) been discovered during the
2917  * wait period, a new FCF event shall be added to the FCOE async event
2918  * list, and then worker thread shall be waked up for processing from the
2919  * worker thread context.
2920  **/
2921 void
2922 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2923 {
2924         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2925
2926         /* Don't send FCF rediscovery event if timer cancelled */
2927         spin_lock_irq(&phba->hbalock);
2928         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2929                 spin_unlock_irq(&phba->hbalock);
2930                 return;
2931         }
2932         /* Clear FCF rediscovery timer pending flag */
2933         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2934         /* FCF rediscovery event to worker thread */
2935         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2936         spin_unlock_irq(&phba->hbalock);
2937         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2938                         "2776 FCF rediscover wait timer expired, post "
2939                         "a worker thread event for FCF table scan\n");
2940         /* wake up worker thread */
2941         lpfc_worker_wake_up(phba);
2942 }
2943
2944 /**
2945  * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2946  * @phba: pointer to lpfc hba data structure.
2947  *
2948  * This function uses the QUERY_FW_CFG mailbox command to determine if the
2949  * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2950  * was successful and the firmware supports FCoE. Any other return indicates
2951  * a error. It is assumed that this function will be called before interrupts
2952  * are enabled.
2953  **/
2954 static int
2955 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2956 {
2957         int rc = 0;
2958         LPFC_MBOXQ_t *mboxq;
2959         struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2960         uint32_t length;
2961         uint32_t shdr_status, shdr_add_status;
2962
2963         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2964         if (!mboxq) {
2965                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2966                                 "2621 Failed to allocate mbox for "
2967                                 "query firmware config cmd\n");
2968                 return -ENOMEM;
2969         }
2970         query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2971         length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2972                   sizeof(struct lpfc_sli4_cfg_mhdr));
2973         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2974                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2975                          length, LPFC_SLI4_MBX_EMBED);
2976         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2977         /* The IOCTL status is embedded in the mailbox subheader. */
2978         shdr_status = bf_get(lpfc_mbox_hdr_status,
2979                              &query_fw_cfg->header.cfg_shdr.response);
2980         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2981                                  &query_fw_cfg->header.cfg_shdr.response);
2982         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2983                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2984                                 "2622 Query Firmware Config failed "
2985                                 "mbx status x%x, status x%x add_status x%x\n",
2986                                 rc, shdr_status, shdr_add_status);
2987                 return -EINVAL;
2988         }
2989         if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2990                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2991                                 "2623 FCoE Function not supported by firmware. "
2992                                 "Function mode = %08x\n",
2993                                 query_fw_cfg->function_mode);
2994                 return -EINVAL;
2995         }
2996         if (rc != MBX_TIMEOUT)
2997                 mempool_free(mboxq, phba->mbox_mem_pool);
2998         return 0;
2999 }
3000
3001 /**
3002  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3003  * @phba: pointer to lpfc hba data structure.
3004  * @acqe_link: pointer to the async link completion queue entry.
3005  *
3006  * This routine is to parse the SLI4 link-attention link fault code and
3007  * translate it into the base driver's read link attention mailbox command
3008  * status.
3009  *
3010  * Return: Link-attention status in terms of base driver's coding.
3011  **/
3012 static uint16_t
3013 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3014                            struct lpfc_acqe_link *acqe_link)
3015 {
3016         uint16_t latt_fault;
3017
3018         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3019         case LPFC_ASYNC_LINK_FAULT_NONE:
3020         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3021         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3022                 latt_fault = 0;
3023                 break;
3024         default:
3025                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3026                                 "0398 Invalid link fault code: x%x\n",
3027                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3028                 latt_fault = MBXERR_ERROR;
3029                 break;
3030         }
3031         return latt_fault;
3032 }
3033
3034 /**
3035  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3036  * @phba: pointer to lpfc hba data structure.
3037  * @acqe_link: pointer to the async link completion queue entry.
3038  *
3039  * This routine is to parse the SLI4 link attention type and translate it
3040  * into the base driver's link attention type coding.
3041  *
3042  * Return: Link attention type in terms of base driver's coding.
3043  **/
3044 static uint8_t
3045 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3046                           struct lpfc_acqe_link *acqe_link)
3047 {
3048         uint8_t att_type;
3049
3050         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3051         case LPFC_ASYNC_LINK_STATUS_DOWN:
3052         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3053                 att_type = AT_LINK_DOWN;
3054                 break;
3055         case LPFC_ASYNC_LINK_STATUS_UP:
3056                 /* Ignore physical link up events - wait for logical link up */
3057                 att_type = AT_RESERVED;
3058                 break;
3059         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3060                 att_type = AT_LINK_UP;
3061                 break;
3062         default:
3063                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3064                                 "0399 Invalid link attention type: x%x\n",
3065                                 bf_get(lpfc_acqe_link_status, acqe_link));
3066                 att_type = AT_RESERVED;
3067                 break;
3068         }
3069         return att_type;
3070 }
3071
3072 /**
3073  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3074  * @phba: pointer to lpfc hba data structure.
3075  * @acqe_link: pointer to the async link completion queue entry.
3076  *
3077  * This routine is to parse the SLI4 link-attention link speed and translate
3078  * it into the base driver's link-attention link speed coding.
3079  *
3080  * Return: Link-attention link speed in terms of base driver's coding.
3081  **/
3082 static uint8_t
3083 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3084                                 struct lpfc_acqe_link *acqe_link)
3085 {
3086         uint8_t link_speed;
3087
3088         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3089         case LPFC_ASYNC_LINK_SPEED_ZERO:
3090                 link_speed = LA_UNKNW_LINK;
3091                 break;
3092         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3093                 link_speed = LA_UNKNW_LINK;
3094                 break;
3095         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3096                 link_speed = LA_UNKNW_LINK;
3097                 break;
3098         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3099                 link_speed = LA_1GHZ_LINK;
3100                 break;
3101         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3102                 link_speed = LA_10GHZ_LINK;
3103                 break;
3104         default:
3105                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3106                                 "0483 Invalid link-attention link speed: x%x\n",
3107                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3108                 link_speed = LA_UNKNW_LINK;
3109                 break;
3110         }
3111         return link_speed;
3112 }
3113
3114 /**
3115  * lpfc_sli4_async_link_evt - Process the asynchronous link event
3116  * @phba: pointer to lpfc hba data structure.
3117  * @acqe_link: pointer to the async link completion queue entry.
3118  *
3119  * This routine is to handle the SLI4 asynchronous link event.
3120  **/
3121 static void
3122 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3123                          struct lpfc_acqe_link *acqe_link)
3124 {
3125         struct lpfc_dmabuf *mp;
3126         LPFC_MBOXQ_t *pmb;
3127         MAILBOX_t *mb;
3128         READ_LA_VAR *la;
3129         uint8_t att_type;
3130
3131         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3132         if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3133                 return;
3134         phba->fcoe_eventtag = acqe_link->event_tag;
3135         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3136         if (!pmb) {
3137                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3138                                 "0395 The mboxq allocation failed\n");
3139                 return;
3140         }
3141         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3142         if (!mp) {
3143                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3144                                 "0396 The lpfc_dmabuf allocation failed\n");
3145                 goto out_free_pmb;
3146         }
3147         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3148         if (!mp->virt) {
3149                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3150                                 "0397 The mbuf allocation failed\n");
3151                 goto out_free_dmabuf;
3152         }
3153
3154         /* Cleanup any outstanding ELS commands */
3155         lpfc_els_flush_all_cmd(phba);
3156
3157         /* Block ELS IOCBs until we have done process link event */
3158         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3159
3160         /* Update link event statistics */
3161         phba->sli.slistat.link_event++;
3162
3163         /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3164         lpfc_read_la(phba, pmb, mp);
3165         pmb->vport = phba->pport;
3166
3167         /* Parse and translate status field */
3168         mb = &pmb->u.mb;
3169         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3170
3171         /* Parse and translate link attention fields */
3172         la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3173         la->eventTag = acqe_link->event_tag;
3174         la->attType = att_type;
3175         la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3176
3177         /* Fake the the following irrelvant fields */
3178         la->topology = TOPOLOGY_PT_PT;
3179         la->granted_AL_PA = 0;
3180         la->il = 0;
3181         la->pb = 0;
3182         la->fa = 0;
3183         la->mm = 0;
3184
3185         /* Keep the link status for extra SLI4 state machine reference */
3186         phba->sli4_hba.link_state.speed =
3187                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3188         phba->sli4_hba.link_state.duplex =
3189                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3190         phba->sli4_hba.link_state.status =
3191                                 bf_get(lpfc_acqe_link_status, acqe_link);
3192         phba->sli4_hba.link_state.physical =
3193                                 bf_get(lpfc_acqe_link_physical, acqe_link);
3194         phba->sli4_hba.link_state.fault =
3195                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3196         phba->sli4_hba.link_state.logical_speed =
3197                                 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3198
3199         /* Invoke the lpfc_handle_latt mailbox command callback function */
3200         lpfc_mbx_cmpl_read_la(phba, pmb);
3201
3202         return;
3203
3204 out_free_dmabuf:
3205         kfree(mp);
3206 out_free_pmb:
3207         mempool_free(pmb, phba->mbox_mem_pool);
3208 }
3209
3210 /**
3211  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3212  * @vport: pointer to vport data structure.
3213  *
3214  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3215  * response to a CVL event.
3216  *
3217  * Return the pointer to the ndlp with the vport if successful, otherwise
3218  * return NULL.
3219  **/
3220 static struct lpfc_nodelist *
3221 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3222 {
3223         struct lpfc_nodelist *ndlp;
3224         struct Scsi_Host *shost;
3225         struct lpfc_hba *phba;
3226
3227         if (!vport)
3228                 return NULL;
3229         phba = vport->phba;
3230         if (!phba)
3231                 return NULL;
3232         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3233         if (!ndlp) {
3234                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3235                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3236                 if (!ndlp)
3237                         return 0;
3238                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3239                 /* Set the node type */
3240                 ndlp->nlp_type |= NLP_FABRIC;
3241                 /* Put ndlp onto node list */
3242                 lpfc_enqueue_node(vport, ndlp);
3243         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3244                 /* re-setup ndlp without removing from node list */
3245                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3246                 if (!ndlp)
3247                         return 0;
3248         }
3249         if (phba->pport->port_state < LPFC_FLOGI)
3250                 return NULL;
3251         /* If virtual link is not yet instantiated ignore CVL */
3252         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC))
3253                 return NULL;
3254         shost = lpfc_shost_from_vport(vport);
3255         if (!shost)
3256                 return NULL;
3257         lpfc_linkdown_port(vport);
3258         lpfc_cleanup_pending_mbox(vport);
3259         spin_lock_irq(shost->host_lock);
3260         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3261         spin_unlock_irq(shost->host_lock);
3262
3263         return ndlp;
3264 }
3265
3266 /**
3267  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3268  * @vport: pointer to lpfc hba data structure.
3269  *
3270  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3271  * response to a FCF dead event.
3272  **/
3273 static void
3274 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3275 {
3276         struct lpfc_vport **vports;
3277         int i;
3278
3279         vports = lpfc_create_vport_work_array(phba);
3280         if (vports)
3281                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3282                         lpfc_sli4_perform_vport_cvl(vports[i]);
3283         lpfc_destroy_vport_work_array(phba, vports);
3284 }
3285
3286 /**
3287  * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3288  * @phba: pointer to lpfc hba data structure.
3289  * @acqe_link: pointer to the async fcoe completion queue entry.
3290  *
3291  * This routine is to handle the SLI4 asynchronous fcoe event.
3292  **/
3293 static void
3294 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3295                          struct lpfc_acqe_fcoe *acqe_fcoe)
3296 {
3297         uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3298         int rc;
3299         struct lpfc_vport *vport;
3300         struct lpfc_nodelist *ndlp;
3301         struct Scsi_Host  *shost;
3302         int active_vlink_present;
3303         struct lpfc_vport **vports;
3304         int i;
3305
3306         phba->fc_eventTag = acqe_fcoe->event_tag;
3307         phba->fcoe_eventtag = acqe_fcoe->event_tag;
3308         switch (event_type) {
3309         case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3310         case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3311                 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3312                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3313                                         LOG_DISCOVERY,
3314                                         "2546 New FCF found event: "
3315                                         "evt_tag:x%x, fcf_index:x%x\n",
3316                                         acqe_fcoe->event_tag,
3317                                         acqe_fcoe->index);
3318                 else
3319                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3320                                         LOG_DISCOVERY,
3321                                         "2788 FCF parameter modified event: "
3322                                         "evt_tag:x%x, fcf_index:x%x\n",
3323                                         acqe_fcoe->event_tag,
3324                                         acqe_fcoe->index);
3325                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3326                         /*
3327                          * During period of FCF discovery, read the FCF
3328                          * table record indexed by the event to update
3329                          * FCF round robin failover eligible FCF bmask.
3330                          */
3331                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3332                                         LOG_DISCOVERY,
3333                                         "2779 Read new FCF record with "
3334                                         "fcf_index:x%x for updating FCF "
3335                                         "round robin failover bmask\n",
3336                                         acqe_fcoe->index);
3337                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
3338                 }
3339
3340                 /* If the FCF discovery is in progress, do nothing. */
3341                 spin_lock_irq(&phba->hbalock);
3342                 if (phba->hba_flag & FCF_DISC_INPROGRESS) {
3343                         spin_unlock_irq(&phba->hbalock);
3344                         break;
3345                 }
3346                 /* If fast FCF failover rescan event is pending, do nothing */
3347                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3348                         spin_unlock_irq(&phba->hbalock);
3349                         break;
3350                 }
3351
3352                 /* If the FCF has been in discovered state, do nothing. */
3353                 if (phba->fcf.fcf_flag & FCF_SCAN_DONE) {
3354                         spin_unlock_irq(&phba->hbalock);
3355                         break;
3356                 }
3357                 spin_unlock_irq(&phba->hbalock);
3358
3359                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3360                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3361                                 "2770 Start FCF table scan due to new FCF "
3362                                 "event: evt_tag:x%x, fcf_index:x%x\n",
3363                                 acqe_fcoe->event_tag, acqe_fcoe->index);
3364                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3365                                                      LPFC_FCOE_FCF_GET_FIRST);
3366                 if (rc)
3367                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3368                                         "2547 Issue FCF scan read FCF mailbox "
3369                                         "command failed 0x%x\n", rc);
3370                 break;
3371
3372         case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3373                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3374                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3375                         bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3376                         acqe_fcoe->event_tag);
3377                 break;
3378
3379         case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3380                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3381                         "2549 FCF disconnected from network index 0x%x"
3382                         " tag 0x%x\n", acqe_fcoe->index,
3383                         acqe_fcoe->event_tag);
3384                 /*
3385                  * If we are in the middle of FCF failover process, clear
3386                  * the corresponding FCF bit in the roundrobin bitmap.
3387                  */
3388                 spin_lock_irq(&phba->hbalock);
3389                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3390                         spin_unlock_irq(&phba->hbalock);
3391                         /* Update FLOGI FCF failover eligible FCF bmask */
3392                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3393                         break;
3394                 }
3395                 spin_unlock_irq(&phba->hbalock);
3396
3397                 /* If the event is not for currently used fcf do nothing */
3398                 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3399                         break;
3400
3401                 /*
3402                  * Otherwise, request the port to rediscover the entire FCF
3403                  * table for a fast recovery from case that the current FCF
3404                  * is no longer valid as we are not in the middle of FCF
3405                  * failover process already.
3406                  */
3407                 spin_lock_irq(&phba->hbalock);
3408                 /* Mark the fast failover process in progress */
3409                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3410                 spin_unlock_irq(&phba->hbalock);
3411
3412                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3413                                 "2771 Start FCF fast failover process due to "
3414                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3415                                 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3416                 rc = lpfc_sli4_redisc_fcf_table(phba);
3417                 if (rc) {
3418                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3419                                         LOG_DISCOVERY,
3420                                         "2772 Issue FCF rediscover mabilbox "
3421                                         "command failed, fail through to FCF "
3422                                         "dead event\n");
3423                         spin_lock_irq(&phba->hbalock);
3424                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3425                         spin_unlock_irq(&phba->hbalock);
3426                         /*
3427                          * Last resort will fail over by treating this
3428                          * as a link down to FCF registration.
3429                          */
3430                         lpfc_sli4_fcf_dead_failthrough(phba);
3431                 } else {
3432                         /* Reset FCF roundrobin bmask for new discovery */
3433                         memset(phba->fcf.fcf_rr_bmask, 0,
3434                                sizeof(*phba->fcf.fcf_rr_bmask));
3435                         /*
3436                          * Handling fast FCF failover to a DEAD FCF event is
3437                          * considered equalivant to receiving CVL to all vports.
3438                          */
3439                         lpfc_sli4_perform_all_vport_cvl(phba);
3440                 }
3441                 break;
3442         case LPFC_FCOE_EVENT_TYPE_CVL:
3443                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3444                         "2718 Clear Virtual Link Received for VPI 0x%x"
3445                         " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3446                 vport = lpfc_find_vport_by_vpid(phba,
3447                                 acqe_fcoe->index - phba->vpi_base);
3448                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3449                 if (!ndlp)
3450                         break;
3451                 active_vlink_present = 0;
3452
3453                 vports = lpfc_create_vport_work_array(phba);
3454                 if (vports) {
3455                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3456                                         i++) {
3457                                 if ((!(vports[i]->fc_flag &
3458                                         FC_VPORT_CVL_RCVD)) &&
3459                                         (vports[i]->port_state > LPFC_FDISC)) {
3460                                         active_vlink_present = 1;
3461                                         break;
3462                                 }
3463                         }
3464                         lpfc_destroy_vport_work_array(phba, vports);
3465                 }
3466
3467                 if (active_vlink_present) {
3468                         /*
3469                          * If there are other active VLinks present,
3470                          * re-instantiate the Vlink using FDISC.
3471                          */
3472                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3473                         shost = lpfc_shost_from_vport(vport);
3474                         spin_lock_irq(shost->host_lock);
3475                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3476                         spin_unlock_irq(shost->host_lock);
3477                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3478                         vport->port_state = LPFC_FDISC;
3479                 } else {
3480                         /*
3481                          * Otherwise, we request port to rediscover
3482                          * the entire FCF table for a fast recovery
3483                          * from possible case that the current FCF
3484                          * is no longer valid if we are not already
3485                          * in the FCF failover process.
3486                          */
3487                         spin_lock_irq(&phba->hbalock);
3488                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3489                                 spin_unlock_irq(&phba->hbalock);
3490                                 break;
3491                         }
3492                         /* Mark the fast failover process in progress */
3493                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3494                         spin_unlock_irq(&phba->hbalock);
3495                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3496                                         LOG_DISCOVERY,
3497                                         "2773 Start FCF fast failover due "
3498                                         "to CVL event: evt_tag:x%x\n",
3499                                         acqe_fcoe->event_tag);
3500                         rc = lpfc_sli4_redisc_fcf_table(phba);
3501                         if (rc) {
3502                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3503                                                 LOG_DISCOVERY,
3504                                                 "2774 Issue FCF rediscover "
3505                                                 "mabilbox command failed, "
3506                                                 "through to CVL event\n");
3507                                 spin_lock_irq(&phba->hbalock);
3508                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3509                                 spin_unlock_irq(&phba->hbalock);
3510                                 /*
3511                                  * Last resort will be re-try on the
3512                                  * the current registered FCF entry.
3513                                  */
3514                                 lpfc_retry_pport_discovery(phba);
3515                         } else
3516                                 /*
3517                                  * Reset FCF roundrobin bmask for new
3518                                  * discovery.
3519                                  */
3520                                 memset(phba->fcf.fcf_rr_bmask, 0,
3521                                        sizeof(*phba->fcf.fcf_rr_bmask));
3522                 }
3523                 break;
3524         default:
3525                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3526                         "0288 Unknown FCoE event type 0x%x event tag "
3527                         "0x%x\n", event_type, acqe_fcoe->event_tag);
3528                 break;
3529         }
3530 }
3531
3532 /**
3533  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3534  * @phba: pointer to lpfc hba data structure.
3535  * @acqe_link: pointer to the async dcbx completion queue entry.
3536  *
3537  * This routine is to handle the SLI4 asynchronous dcbx event.
3538  **/
3539 static void
3540 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3541                          struct lpfc_acqe_dcbx *acqe_dcbx)
3542 {
3543         phba->fc_eventTag = acqe_dcbx->event_tag;
3544         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3545                         "0290 The SLI4 DCBX asynchronous event is not "
3546                         "handled yet\n");
3547 }
3548
3549 /**
3550  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3551  * @phba: pointer to lpfc hba data structure.
3552  * @acqe_link: pointer to the async grp5 completion queue entry.
3553  *
3554  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3555  * is an asynchronous notified of a logical link speed change.  The Port
3556  * reports the logical link speed in units of 10Mbps.
3557  **/
3558 static void
3559 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3560                          struct lpfc_acqe_grp5 *acqe_grp5)
3561 {
3562         uint16_t prev_ll_spd;
3563
3564         phba->fc_eventTag = acqe_grp5->event_tag;
3565         phba->fcoe_eventtag = acqe_grp5->event_tag;
3566         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3567         phba->sli4_hba.link_state.logical_speed =
3568                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3569         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3570                         "2789 GRP5 Async Event: Updating logical link speed "
3571                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3572                         (phba->sli4_hba.link_state.logical_speed*10));
3573 }
3574
3575 /**
3576  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3577  * @phba: pointer to lpfc hba data structure.
3578  *
3579  * This routine is invoked by the worker thread to process all the pending
3580  * SLI4 asynchronous events.
3581  **/
3582 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3583 {
3584         struct lpfc_cq_event *cq_event;
3585
3586         /* First, declare the async event has been handled */
3587         spin_lock_irq(&phba->hbalock);
3588         phba->hba_flag &= ~ASYNC_EVENT;
3589         spin_unlock_irq(&phba->hbalock);
3590         /* Now, handle all the async events */
3591         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3592                 /* Get the first event from the head of the event queue */
3593                 spin_lock_irq(&phba->hbalock);
3594                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3595                                  cq_event, struct lpfc_cq_event, list);
3596                 spin_unlock_irq(&phba->hbalock);
3597                 /* Process the asynchronous event */
3598                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3599                 case LPFC_TRAILER_CODE_LINK:
3600                         lpfc_sli4_async_link_evt(phba,
3601                                                  &cq_event->cqe.acqe_link);
3602                         break;
3603                 case LPFC_TRAILER_CODE_FCOE:
3604                         lpfc_sli4_async_fcoe_evt(phba,
3605                                                  &cq_event->cqe.acqe_fcoe);
3606                         break;
3607                 case LPFC_TRAILER_CODE_DCBX:
3608                         lpfc_sli4_async_dcbx_evt(phba,
3609                                                  &cq_event->cqe.acqe_dcbx);
3610                         break;
3611                 case LPFC_TRAILER_CODE_GRP5:
3612                         lpfc_sli4_async_grp5_evt(phba,
3613                                                  &cq_event->cqe.acqe_grp5);
3614                         break;
3615                 default:
3616                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3617                                         "1804 Invalid asynchrous event code: "
3618                                         "x%x\n", bf_get(lpfc_trailer_code,
3619                                         &cq_event->cqe.mcqe_cmpl));
3620                         break;
3621                 }
3622                 /* Free the completion event processed to the free pool */
3623                 lpfc_sli4_cq_event_release(phba, cq_event);
3624         }
3625 }
3626
3627 /**
3628  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3629  * @phba: pointer to lpfc hba data structure.
3630  *
3631  * This routine is invoked by the worker thread to process FCF table
3632  * rediscovery pending completion event.
3633  **/
3634 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3635 {
3636         int rc;
3637
3638         spin_lock_irq(&phba->hbalock);
3639         /* Clear FCF rediscovery timeout event */
3640         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3641         /* Clear driver fast failover FCF record flag */
3642         phba->fcf.failover_rec.flag = 0;
3643         /* Set state for FCF fast failover */
3644         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3645         spin_unlock_irq(&phba->hbalock);
3646
3647         /* Scan FCF table from the first entry to re-discover SAN */
3648         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3649                         "2777 Start FCF table scan after FCF "
3650                         "rediscovery quiescent period over\n");
3651         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3652         if (rc)
3653                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3654                                 "2747 Issue FCF scan read FCF mailbox "
3655                                 "command failed 0x%x\n", rc);
3656 }
3657
3658 /**
3659  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3660  * @phba: pointer to lpfc hba data structure.
3661  * @dev_grp: The HBA PCI-Device group number.
3662  *
3663  * This routine is invoked to set up the per HBA PCI-Device group function
3664  * API jump table entries.
3665  *
3666  * Return: 0 if success, otherwise -ENODEV
3667  **/
3668 int
3669 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3670 {
3671         int rc;
3672
3673         /* Set up lpfc PCI-device group */
3674         phba->pci_dev_grp = dev_grp;
3675
3676         /* The LPFC_PCI_DEV_OC uses SLI4 */
3677         if (dev_grp == LPFC_PCI_DEV_OC)
3678                 phba->sli_rev = LPFC_SLI_REV4;
3679
3680         /* Set up device INIT API function jump table */
3681         rc = lpfc_init_api_table_setup(phba, dev_grp);
3682         if (rc)
3683                 return -ENODEV;
3684         /* Set up SCSI API function jump table */
3685         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3686         if (rc)
3687                 return -ENODEV;
3688         /* Set up SLI API function jump table */
3689         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3690         if (rc)
3691                 return -ENODEV;
3692         /* Set up MBOX API function jump table */
3693         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3694         if (rc)
3695                 return -ENODEV;
3696
3697         return 0;
3698 }
3699
3700 /**
3701  * lpfc_log_intr_mode - Log the active interrupt mode
3702  * @phba: pointer to lpfc hba data structure.
3703  * @intr_mode: active interrupt mode adopted.
3704  *
3705  * This routine it invoked to log the currently used active interrupt mode
3706  * to the device.
3707  **/
3708 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3709 {
3710         switch (intr_mode) {
3711         case 0:
3712                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3713                                 "0470 Enable INTx interrupt mode.\n");
3714                 break;
3715         case 1:
3716                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3717                                 "0481 Enabled MSI interrupt mode.\n");
3718                 break;
3719         case 2:
3720                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3721                                 "0480 Enabled MSI-X interrupt mode.\n");
3722                 break;
3723         default:
3724                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3725                                 "0482 Illegal interrupt mode.\n");
3726                 break;
3727         }
3728         return;
3729 }
3730
3731 /**
3732  * lpfc_enable_pci_dev - Enable a generic PCI device.
3733  * @phba: pointer to lpfc hba data structure.
3734  *
3735  * This routine is invoked to enable the PCI device that is common to all
3736  * PCI devices.
3737  *
3738  * Return codes
3739  *      0 - successful
3740  *      other values - error
3741  **/
3742 static int
3743 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3744 {
3745         struct pci_dev *pdev;
3746         int bars;
3747
3748         /* Obtain PCI device reference */
3749         if (!phba->pcidev)
3750                 goto out_error;
3751         else
3752                 pdev = phba->pcidev;
3753         /* Select PCI BARs */
3754         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3755         /* Enable PCI device */
3756         if (pci_enable_device_mem(pdev))
3757                 goto out_error;
3758         /* Request PCI resource for the device */
3759         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3760                 goto out_disable_device;
3761         /* Set up device as PCI master and save state for EEH */
3762         pci_set_master(pdev);
3763         pci_try_set_mwi(pdev);
3764         pci_save_state(pdev);
3765
3766         return 0;
3767
3768 out_disable_device:
3769         pci_disable_device(pdev);
3770 out_error:
3771         return -ENODEV;
3772 }
3773
3774 /**
3775  * lpfc_disable_pci_dev - Disable a generic PCI device.
3776  * @phba: pointer to lpfc hba data structure.
3777  *
3778  * This routine is invoked to disable the PCI device that is common to all
3779  * PCI devices.
3780  **/
3781 static void
3782 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3783 {
3784         struct pci_dev *pdev;
3785         int bars;
3786
3787         /* Obtain PCI device reference */
3788         if (!phba->pcidev)
3789                 return;
3790         else
3791                 pdev = phba->pcidev;
3792         /* Select PCI BARs */
3793         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3794         /* Release PCI resource and disable PCI device */
3795         pci_release_selected_regions(pdev, bars);
3796         pci_disable_device(pdev);
3797         /* Null out PCI private reference to driver */
3798         pci_set_drvdata(pdev, NULL);
3799
3800         return;
3801 }
3802
3803 /**
3804  * lpfc_reset_hba - Reset a hba
3805  * @phba: pointer to lpfc hba data structure.
3806  *
3807  * This routine is invoked to reset a hba device. It brings the HBA
3808  * offline, performs a board restart, and then brings the board back
3809  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3810  * on outstanding mailbox commands.
3811  **/
3812 void
3813 lpfc_reset_hba(struct lpfc_hba *phba)
3814 {
3815         /* If resets are disabled then set error state and return. */
3816         if (!phba->cfg_enable_hba_reset) {
3817                 phba->link_state = LPFC_HBA_ERROR;
3818                 return;
3819         }
3820         lpfc_offline_prep(phba);
3821         lpfc_offline(phba);
3822         lpfc_sli_brdrestart(phba);
3823         lpfc_online(phba);
3824         lpfc_unblock_mgmt_io(phba);
3825 }
3826
3827 /**
3828  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3829  * @phba: pointer to lpfc hba data structure.
3830  *
3831  * This routine is invoked to set up the driver internal resources specific to
3832  * support the SLI-3 HBA device it attached to.
3833  *
3834  * Return codes
3835  *      0 - successful
3836  *      other values - error
3837  **/
3838 static int
3839 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3840 {
3841         struct lpfc_sli *psli;
3842
3843         /*
3844          * Initialize timers used by driver
3845          */
3846
3847         /* Heartbeat timer */
3848         init_timer(&phba->hb_tmofunc);
3849         phba->hb_tmofunc.function = lpfc_hb_timeout;
3850         phba->hb_tmofunc.data = (unsigned long)phba;
3851
3852         psli = &phba->sli;
3853         /* MBOX heartbeat timer */
3854         init_timer(&psli->mbox_tmo);
3855         psli->mbox_tmo.function = lpfc_mbox_timeout;
3856         psli->mbox_tmo.data = (unsigned long) phba;
3857         /* FCP polling mode timer */
3858         init_timer(&phba->fcp_poll_timer);
3859         phba->fcp_poll_timer.function = lpfc_poll_timeout;
3860         phba->fcp_poll_timer.data = (unsigned long) phba;
3861         /* Fabric block timer */
3862         init_timer(&phba->fabric_block_timer);
3863         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3864         phba->fabric_block_timer.data = (unsigned long) phba;
3865         /* EA polling mode timer */
3866         init_timer(&phba->eratt_poll);
3867         phba->eratt_poll.function = lpfc_poll_eratt;
3868         phba->eratt_poll.data = (unsigned long) phba;
3869
3870         /* Host attention work mask setup */
3871         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3872         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3873
3874         /* Get all the module params for configuring this host */
3875         lpfc_get_cfgparam(phba);
3876         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
3877                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
3878                 /* check for menlo minimum sg count */
3879                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
3880                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
3881         }
3882
3883         /*
3884          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3885          * used to create the sg_dma_buf_pool must be dynamically calculated.
3886          * 2 segments are added since the IOCB needs a command and response bde.
3887          */
3888         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3889                 sizeof(struct fcp_rsp) +
3890                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3891
3892         if (phba->cfg_enable_bg) {
3893                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3894                 phba->cfg_sg_dma_buf_size +=
3895                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3896         }
3897
3898         /* Also reinitialize the host templates with new values. */
3899         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3900         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3901
3902         phba->max_vpi = LPFC_MAX_VPI;
3903         /* This will be set to correct value after config_port mbox */
3904         phba->max_vports = 0;
3905
3906         /*
3907          * Initialize the SLI Layer to run with lpfc HBAs.
3908          */
3909         lpfc_sli_setup(phba);
3910         lpfc_sli_queue_setup(phba);
3911
3912         /* Allocate device driver memory */
3913         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3914                 return -ENOMEM;
3915
3916         return 0;
3917 }
3918
3919 /**
3920  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3921  * @phba: pointer to lpfc hba data structure.
3922  *
3923  * This routine is invoked to unset the driver internal resources set up
3924  * specific for supporting the SLI-3 HBA device it attached to.
3925  **/
3926 static void
3927 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3928 {
3929         /* Free device driver memory allocated */
3930         lpfc_mem_free_all(phba);
3931
3932         return;
3933 }
3934
3935 /**
3936  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3937  * @phba: pointer to lpfc hba data structure.
3938  *
3939  * This routine is invoked to set up the driver internal resources specific to
3940  * support the SLI-4 HBA device it attached to.
3941  *
3942  * Return codes
3943  *      0 - successful
3944  *      other values - error
3945  **/
3946 static int
3947 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3948 {
3949         struct lpfc_sli *psli;
3950         LPFC_MBOXQ_t *mboxq;
3951         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3952         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3953         struct lpfc_mqe *mqe;
3954         int longs;
3955
3956         /* Before proceed, wait for POST done and device ready */
3957         rc = lpfc_sli4_post_status_check(phba);
3958         if (rc)
3959                 return -ENODEV;
3960
3961         /*
3962          * Initialize timers used by driver
3963          */
3964
3965         /* Heartbeat timer */
3966         init_timer(&phba->hb_tmofunc);
3967         phba->hb_tmofunc.function = lpfc_hb_timeout;
3968         phba->hb_tmofunc.data = (unsigned long)phba;
3969
3970         psli = &phba->sli;
3971         /* MBOX heartbeat timer */
3972         init_timer(&psli->mbox_tmo);
3973         psli->mbox_tmo.function = lpfc_mbox_timeout;
3974         psli->mbox_tmo.data = (unsigned long) phba;
3975         /* Fabric block timer */
3976         init_timer(&phba->fabric_block_timer);
3977         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3978         phba->fabric_block_timer.data = (unsigned long) phba;
3979         /* EA polling mode timer */
3980         init_timer(&phba->eratt_poll);
3981         phba->eratt_poll.function = lpfc_poll_eratt;
3982         phba->eratt_poll.data = (unsigned long) phba;
3983         /* FCF rediscover timer */
3984         init_timer(&phba->fcf.redisc_wait);
3985         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3986         phba->fcf.redisc_wait.data = (unsigned long)phba;
3987
3988         /*
3989          * We need to do a READ_CONFIG mailbox command here before
3990          * calling lpfc_get_cfgparam. For VFs this will report the
3991          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3992          * All of the resources allocated
3993          * for this Port are tied to these values.
3994          */
3995         /* Get all the module params for configuring this host */
3996         lpfc_get_cfgparam(phba);
3997         phba->max_vpi = LPFC_MAX_VPI;
3998         /* This will be set to correct value after the read_config mbox */
3999         phba->max_vports = 0;
4000
4001         /* Program the default value of vlan_id and fc_map */
4002         phba->valid_vlan = 0;
4003         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4004         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4005         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4006
4007         /*
4008          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4009          * used to create the sg_dma_buf_pool must be dynamically calculated.
4010          * 2 segments are added since the IOCB needs a command and response bde.
4011          * To insure that the scsi sgl does not cross a 4k page boundary only
4012          * sgl sizes of must be a power of 2.
4013          */
4014         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4015                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4016         /* Feature Level 1 hardware is limited to 2 pages */
4017         if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
4018              LPFC_SLI_INTF_FEATURELEVEL1_1))
4019                 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4020         else
4021                 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4022         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4023              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4024              dma_buf_size = dma_buf_size << 1)
4025                 ;
4026         if (dma_buf_size == max_buf_size)
4027                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4028                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4029                         (2 * sizeof(struct sli4_sge))) /
4030                                 sizeof(struct sli4_sge);
4031         phba->cfg_sg_dma_buf_size = dma_buf_size;
4032
4033         /* Initialize buffer queue management fields */
4034         hbq_count = lpfc_sli_hbq_count();
4035         for (i = 0; i < hbq_count; ++i)
4036                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4037         INIT_LIST_HEAD(&phba->rb_pend_list);
4038         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4039         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4040
4041         /*
4042          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4043          */
4044         /* Initialize the Abort scsi buffer list used by driver */
4045         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4046         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4047         /* This abort list used by worker thread */
4048         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4049
4050         /*
4051          * Initialize dirver internal slow-path work queues
4052          */
4053
4054         /* Driver internel slow-path CQ Event pool */
4055         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4056         /* Response IOCB work queue list */
4057         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4058         /* Asynchronous event CQ Event work queue list */
4059         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4060         /* Fast-path XRI aborted CQ Event work queue list */
4061         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4062         /* Slow-path XRI aborted CQ Event work queue list */
4063         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4064         /* Receive queue CQ Event work queue list */
4065         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4066
4067         /* Initialize the driver internal SLI layer lists. */
4068         lpfc_sli_setup(phba);
4069         lpfc_sli_queue_setup(phba);
4070
4071         /* Allocate device driver memory */
4072         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4073         if (rc)
4074                 return -ENOMEM;
4075
4076         /* Create the bootstrap mailbox command */
4077         rc = lpfc_create_bootstrap_mbox(phba);
4078         if (unlikely(rc))
4079                 goto out_free_mem;
4080
4081         /* Set up the host's endian order with the device. */
4082         rc = lpfc_setup_endian_order(phba);
4083         if (unlikely(rc))
4084                 goto out_free_bsmbx;
4085
4086         rc = lpfc_sli4_fw_cfg_check(phba);
4087         if (unlikely(rc))
4088                 goto out_free_bsmbx;
4089
4090         /* Set up the hba's configuration parameters. */
4091         rc = lpfc_sli4_read_config(phba);
4092         if (unlikely(rc))
4093                 goto out_free_bsmbx;
4094
4095         /* Perform a function reset */
4096         rc = lpfc_pci_function_reset(phba);
4097         if (unlikely(rc))
4098                 goto out_free_bsmbx;
4099
4100         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4101                                                        GFP_KERNEL);
4102         if (!mboxq) {
4103                 rc = -ENOMEM;
4104                 goto out_free_bsmbx;
4105         }
4106
4107         /* Get the Supported Pages. It is always available. */
4108         lpfc_supported_pages(mboxq);
4109         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4110         if (unlikely(rc)) {
4111                 rc = -EIO;
4112                 mempool_free(mboxq, phba->mbox_mem_pool);
4113                 goto out_free_bsmbx;
4114         }
4115
4116         mqe = &mboxq->u.mqe;
4117         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4118                LPFC_MAX_SUPPORTED_PAGES);
4119         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4120                 switch (pn_page[i]) {
4121                 case LPFC_SLI4_PARAMETERS:
4122                         phba->sli4_hba.pc_sli4_params.supported = 1;
4123                         break;
4124                 default:
4125                         break;
4126                 }
4127         }
4128
4129         /* Read the port's SLI4 Parameters capabilities if supported. */
4130         if (phba->sli4_hba.pc_sli4_params.supported)
4131                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4132         mempool_free(mboxq, phba->mbox_mem_pool);
4133         if (rc) {
4134                 rc = -EIO;
4135                 goto out_free_bsmbx;
4136         }
4137         /* Create all the SLI4 queues */
4138         rc = lpfc_sli4_queue_create(phba);
4139         if (rc)
4140                 goto out_free_bsmbx;
4141
4142         /* Create driver internal CQE event pool */
4143         rc = lpfc_sli4_cq_event_pool_create(phba);
4144         if (rc)
4145                 goto out_destroy_queue;
4146
4147         /* Initialize and populate the iocb list per host */
4148         rc = lpfc_init_sgl_list(phba);
4149         if (rc) {
4150                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4151                                 "1400 Failed to initialize sgl list.\n");
4152                 goto out_destroy_cq_event_pool;
4153         }
4154         rc = lpfc_init_active_sgl_array(phba);
4155         if (rc) {
4156                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4157                                 "1430 Failed to initialize sgl list.\n");
4158                 goto out_free_sgl_list;
4159         }
4160
4161         rc = lpfc_sli4_init_rpi_hdrs(phba);
4162         if (rc) {
4163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4164                                 "1432 Failed to initialize rpi headers.\n");
4165                 goto out_free_active_sgl;
4166         }
4167
4168         /* Allocate eligible FCF bmask memory for FCF round robin failover */
4169         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4170         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4171                                          GFP_KERNEL);
4172         if (!phba->fcf.fcf_rr_bmask) {
4173                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4174                                 "2759 Failed allocate memory for FCF round "
4175                                 "robin failover bmask\n");
4176                 goto out_remove_rpi_hdrs;
4177         }
4178
4179         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4180                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4181         if (!phba->sli4_hba.fcp_eq_hdl) {
4182                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4183                                 "2572 Failed allocate memory for fast-path "
4184                                 "per-EQ handle array\n");
4185                 goto out_free_fcf_rr_bmask;
4186         }
4187
4188         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4189                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4190         if (!phba->sli4_hba.msix_entries) {
4191                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4192                                 "2573 Failed allocate memory for msi-x "
4193                                 "interrupt vector entries\n");
4194                 goto out_free_fcp_eq_hdl;
4195         }
4196
4197         return rc;
4198
4199 out_free_fcp_eq_hdl:
4200         kfree(phba->sli4_hba.fcp_eq_hdl);
4201 out_free_fcf_rr_bmask:
4202         kfree(phba->fcf.fcf_rr_bmask);
4203 out_remove_rpi_hdrs:
4204         lpfc_sli4_remove_rpi_hdrs(phba);
4205 out_free_active_sgl:
4206         lpfc_free_active_sgl(phba);
4207 out_free_sgl_list:
4208         lpfc_free_sgl_list(phba);
4209 out_destroy_cq_event_pool:
4210         lpfc_sli4_cq_event_pool_destroy(phba);
4211 out_destroy_queue:
4212         lpfc_sli4_queue_destroy(phba);
4213 out_free_bsmbx:
4214         lpfc_destroy_bootstrap_mbox(phba);
4215 out_free_mem:
4216         lpfc_mem_free(phba);
4217         return rc;
4218 }
4219
4220 /**
4221  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4222  * @phba: pointer to lpfc hba data structure.
4223  *
4224  * This routine is invoked to unset the driver internal resources set up
4225  * specific for supporting the SLI-4 HBA device it attached to.
4226  **/
4227 static void
4228 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4229 {
4230         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4231
4232         /* Free memory allocated for msi-x interrupt vector entries */
4233         kfree(phba->sli4_hba.msix_entries);
4234
4235         /* Free memory allocated for fast-path work queue handles */
4236         kfree(phba->sli4_hba.fcp_eq_hdl);
4237
4238         /* Free the allocated rpi headers. */
4239         lpfc_sli4_remove_rpi_hdrs(phba);
4240         lpfc_sli4_remove_rpis(phba);
4241
4242         /* Free eligible FCF index bmask */
4243         kfree(phba->fcf.fcf_rr_bmask);
4244
4245         /* Free the ELS sgl list */
4246         lpfc_free_active_sgl(phba);
4247         lpfc_free_sgl_list(phba);
4248
4249         /* Free the SCSI sgl management array */
4250         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4251
4252         /* Free the SLI4 queues */
4253         lpfc_sli4_queue_destroy(phba);
4254
4255         /* Free the completion queue EQ event pool */
4256         lpfc_sli4_cq_event_release_all(phba);
4257         lpfc_sli4_cq_event_pool_destroy(phba);
4258
4259         /* Free the bsmbx region. */
4260         lpfc_destroy_bootstrap_mbox(phba);
4261
4262         /* Free the SLI Layer memory with SLI4 HBAs */
4263         lpfc_mem_free_all(phba);
4264
4265         /* Free the current connect table */
4266         list_for_each_entry_safe(conn_entry, next_conn_entry,
4267                 &phba->fcf_conn_rec_list, list) {
4268                 list_del_init(&conn_entry->list);
4269                 kfree(conn_entry);
4270         }
4271
4272         return;
4273 }
4274
4275 /**
4276  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4277  * @phba: The hba struct for which this call is being executed.
4278  * @dev_grp: The HBA PCI-Device group number.
4279  *
4280  * This routine sets up the device INIT interface API function jump table
4281  * in @phba struct.
4282  *
4283  * Returns: 0 - success, -ENODEV - failure.
4284  **/
4285 int
4286 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4287 {
4288         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4289         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4290         switch (dev_grp) {
4291         case LPFC_PCI_DEV_LP:
4292                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4293                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4294                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4295                 break;
4296         case LPFC_PCI_DEV_OC:
4297                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4298                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4299                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4300                 break;
4301         default:
4302                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4303                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4304                                 dev_grp);
4305                 return -ENODEV;
4306                 break;
4307         }
4308         return 0;
4309 }
4310
4311 /**
4312  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4313  * @phba: pointer to lpfc hba data structure.
4314  *
4315  * This routine is invoked to set up the driver internal resources before the
4316  * device specific resource setup to support the HBA device it attached to.
4317  *
4318  * Return codes
4319  *      0 - successful
4320  *      other values - error
4321  **/
4322 static int
4323 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4324 {
4325         /*
4326          * Driver resources common to all SLI revisions
4327          */
4328         atomic_set(&phba->fast_event_count, 0);
4329         spin_lock_init(&phba->hbalock);
4330
4331         /* Initialize ndlp management spinlock */
4332         spin_lock_init(&phba->ndlp_lock);
4333
4334         INIT_LIST_HEAD(&phba->port_list);
4335         INIT_LIST_HEAD(&phba->work_list);
4336         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4337
4338         /* Initialize the wait queue head for the kernel thread */
4339         init_waitqueue_head(&phba->work_waitq);
4340
4341         /* Initialize the scsi buffer list used by driver for scsi IO */
4342         spin_lock_init(&phba->scsi_buf_list_lock);
4343         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4344
4345         /* Initialize the fabric iocb list */
4346         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4347
4348         /* Initialize list to save ELS buffers */
4349         INIT_LIST_HEAD(&phba->elsbuf);
4350
4351         /* Initialize FCF connection rec list */
4352         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4353
4354         return 0;
4355 }
4356
4357 /**
4358  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4359  * @phba: pointer to lpfc hba data structure.
4360  *
4361  * This routine is invoked to set up the driver internal resources after the
4362  * device specific resource setup to support the HBA device it attached to.
4363  *
4364  * Return codes
4365  *      0 - successful
4366  *      other values - error
4367  **/
4368 static int
4369 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4370 {
4371         int error;
4372
4373         /* Startup the kernel thread for this host adapter. */
4374         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4375                                           "lpfc_worker_%d", phba->brd_no);
4376         if (IS_ERR(phba->worker_thread)) {
4377                 error = PTR_ERR(phba->worker_thread);
4378                 return error;
4379         }
4380
4381         return 0;
4382 }
4383
4384 /**
4385  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4386  * @phba: pointer to lpfc hba data structure.
4387  *
4388  * This routine is invoked to unset the driver internal resources set up after
4389  * the device specific resource setup for supporting the HBA device it
4390  * attached to.
4391  **/
4392 static void
4393 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4394 {
4395         /* Stop kernel worker thread */
4396         kthread_stop(phba->worker_thread);
4397 }
4398
4399 /**
4400  * lpfc_free_iocb_list - Free iocb list.
4401  * @phba: pointer to lpfc hba data structure.
4402  *
4403  * This routine is invoked to free the driver's IOCB list and memory.
4404  **/
4405 static void
4406 lpfc_free_iocb_list(struct lpfc_hba *phba)
4407 {
4408         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4409
4410         spin_lock_irq(&phba->hbalock);
4411         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4412                                  &phba->lpfc_iocb_list, list) {
4413                 list_del(&iocbq_entry->list);
4414                 kfree(iocbq_entry);
4415                 phba->total_iocbq_bufs--;
4416         }
4417         spin_unlock_irq(&phba->hbalock);
4418
4419         return;
4420 }
4421
4422 /**
4423  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4424  * @phba: pointer to lpfc hba data structure.
4425  *
4426  * This routine is invoked to allocate and initizlize the driver's IOCB
4427  * list and set up the IOCB tag array accordingly.
4428  *
4429  * Return codes
4430  *      0 - successful
4431  *      other values - error
4432  **/
4433 static int
4434 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4435 {
4436         struct lpfc_iocbq *iocbq_entry = NULL;
4437         uint16_t iotag;
4438         int i;
4439
4440         /* Initialize and populate the iocb list per host.  */
4441         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4442         for (i = 0; i < iocb_count; i++) {
4443                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4444                 if (iocbq_entry == NULL) {
4445                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4446                                 "expected %d count. Unloading driver.\n",
4447                                 __func__, i, LPFC_IOCB_LIST_CNT);
4448                         goto out_free_iocbq;
4449                 }
4450
4451                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4452                 if (iotag == 0) {
4453                         kfree(iocbq_entry);
4454                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4455                                 "Unloading driver.\n", __func__);
4456                         goto out_free_iocbq;
4457                 }
4458                 iocbq_entry->sli4_xritag = NO_XRI;
4459
4460                 spin_lock_irq(&phba->hbalock);
4461                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4462                 phba->total_iocbq_bufs++;
4463                 spin_unlock_irq(&phba->hbalock);
4464         }
4465
4466         return 0;
4467
4468 out_free_iocbq:
4469         lpfc_free_iocb_list(phba);
4470
4471         return -ENOMEM;
4472 }
4473
4474 /**
4475  * lpfc_free_sgl_list - Free sgl list.
4476  * @phba: pointer to lpfc hba data structure.
4477  *
4478  * This routine is invoked to free the driver's sgl list and memory.
4479  **/
4480 static void
4481 lpfc_free_sgl_list(struct lpfc_hba *phba)
4482 {
4483         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4484         LIST_HEAD(sglq_list);
4485
4486         spin_lock_irq(&phba->hbalock);
4487         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4488         spin_unlock_irq(&phba->hbalock);
4489
4490         list_for_each_entry_safe(sglq_entry, sglq_next,
4491                                  &sglq_list, list) {
4492                 list_del(&sglq_entry->list);
4493                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4494                 kfree(sglq_entry);
4495                 phba->sli4_hba.total_sglq_bufs--;
4496         }
4497         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4498 }
4499
4500 /**
4501  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4502  * @phba: pointer to lpfc hba data structure.
4503  *
4504  * This routine is invoked to allocate the driver's active sgl memory.
4505  * This array will hold the sglq_entry's for active IOs.
4506  **/
4507 static int
4508 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4509 {
4510         int size;
4511         size = sizeof(struct lpfc_sglq *);
4512         size *= phba->sli4_hba.max_cfg_param.max_xri;
4513
4514         phba->sli4_hba.lpfc_sglq_active_list =
4515                 kzalloc(size, GFP_KERNEL);
4516         if (!phba->sli4_hba.lpfc_sglq_active_list)
4517                 return -ENOMEM;
4518         return 0;
4519 }
4520
4521 /**
4522  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4523  * @phba: pointer to lpfc hba data structure.
4524  *
4525  * This routine is invoked to walk through the array of active sglq entries
4526  * and free all of the resources.
4527  * This is just a place holder for now.
4528  **/
4529 static void
4530 lpfc_free_active_sgl(struct lpfc_hba *phba)
4531 {
4532         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4533 }
4534
4535 /**
4536  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4537  * @phba: pointer to lpfc hba data structure.
4538  *
4539  * This routine is invoked to allocate and initizlize the driver's sgl
4540  * list and set up the sgl xritag tag array accordingly.
4541  *
4542  * Return codes
4543  *      0 - successful
4544  *      other values - error
4545  **/
4546 static int
4547 lpfc_init_sgl_list(struct lpfc_hba *phba)
4548 {
4549         struct lpfc_sglq *sglq_entry = NULL;
4550         int i;
4551         int els_xri_cnt;
4552
4553         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4554         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4555                                 "2400 lpfc_init_sgl_list els %d.\n",
4556                                 els_xri_cnt);
4557         /* Initialize and populate the sglq list per host/VF. */
4558         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4559         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4560
4561         /* Sanity check on XRI management */
4562         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4563                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4564                                 "2562 No room left for SCSI XRI allocation: "
4565                                 "max_xri=%d, els_xri=%d\n",
4566                                 phba->sli4_hba.max_cfg_param.max_xri,
4567                                 els_xri_cnt);
4568                 return -ENOMEM;
4569         }
4570
4571         /* Allocate memory for the ELS XRI management array */
4572         phba->sli4_hba.lpfc_els_sgl_array =
4573                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4574                         GFP_KERNEL);
4575
4576         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4577                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4578                                 "2401 Failed to allocate memory for ELS "
4579                                 "XRI management array of size %d.\n",
4580                                 els_xri_cnt);
4581                 return -ENOMEM;
4582         }
4583
4584         /* Keep the SCSI XRI into the XRI management array */
4585         phba->sli4_hba.scsi_xri_max =
4586                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4587         phba->sli4_hba.scsi_xri_cnt = 0;
4588
4589         phba->sli4_hba.lpfc_scsi_psb_array =
4590                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4591                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4592
4593         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4594                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4595                                 "2563 Failed to allocate memory for SCSI "
4596                                 "XRI management array of size %d.\n",
4597                                 phba->sli4_hba.scsi_xri_max);
4598                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4599                 return -ENOMEM;
4600         }
4601
4602         for (i = 0; i < els_xri_cnt; i++) {
4603                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4604                 if (sglq_entry == NULL) {
4605                         printk(KERN_ERR "%s: only allocated %d sgls of "
4606                                 "expected %d count. Unloading driver.\n",
4607                                 __func__, i, els_xri_cnt);
4608                         goto out_free_mem;
4609                 }
4610
4611                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4612                 if (sglq_entry->sli4_xritag == NO_XRI) {
4613                         kfree(sglq_entry);
4614                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4615                                 "Unloading driver.\n", __func__);
4616                         goto out_free_mem;
4617                 }
4618                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4619                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4620                 if (sglq_entry->virt == NULL) {
4621                         kfree(sglq_entry);
4622                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4623                                 "Unloading driver.\n", __func__);
4624                         goto out_free_mem;
4625                 }
4626                 sglq_entry->sgl = sglq_entry->virt;
4627                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4628
4629                 /* The list order is used by later block SGL registraton */
4630                 spin_lock_irq(&phba->hbalock);
4631                 sglq_entry->state = SGL_FREED;
4632                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4633                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4634                 phba->sli4_hba.total_sglq_bufs++;
4635                 spin_unlock_irq(&phba->hbalock);
4636         }
4637         return 0;
4638
4639 out_free_mem:
4640         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4641         lpfc_free_sgl_list(phba);
4642         return -ENOMEM;
4643 }
4644
4645 /**
4646  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4647  * @phba: pointer to lpfc hba data structure.
4648  *
4649  * This routine is invoked to post rpi header templates to the
4650  * HBA consistent with the SLI-4 interface spec.  This routine
4651  * posts a PAGE_SIZE memory region to the port to hold up to
4652  * PAGE_SIZE modulo 64 rpi context headers.
4653  * No locks are held here because this is an initialization routine
4654  * called only from probe or lpfc_online when interrupts are not
4655  * enabled and the driver is reinitializing the device.
4656  *
4657  * Return codes
4658  *      0 - successful
4659  *      -ENOMEM - No availble memory
4660  *      -EIO - The mailbox failed to complete successfully.
4661  **/
4662 int
4663 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4664 {
4665         int rc = 0;
4666         int longs;
4667         uint16_t rpi_count;
4668         struct lpfc_rpi_hdr *rpi_hdr;
4669
4670         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4671
4672         /*
4673          * Provision an rpi bitmask range for discovery. The total count
4674          * is the difference between max and base + 1.
4675          */
4676         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4677                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4678
4679         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4680         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4681                                            GFP_KERNEL);
4682         if (!phba->sli4_hba.rpi_bmask)
4683                 return -ENOMEM;
4684
4685         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4686         if (!rpi_hdr) {
4687                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4688                                 "0391 Error during rpi post operation\n");
4689                 lpfc_sli4_remove_rpis(phba);
4690                 rc = -ENODEV;
4691         }
4692
4693         return rc;
4694 }
4695
4696 /**
4697  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4698  * @phba: pointer to lpfc hba data structure.
4699  *
4700  * This routine is invoked to allocate a single 4KB memory region to
4701  * support rpis and stores them in the phba.  This single region
4702  * provides support for up to 64 rpis.  The region is used globally
4703  * by the device.
4704  *
4705  * Returns:
4706  *   A valid rpi hdr on success.
4707  *   A NULL pointer on any failure.
4708  **/
4709 struct lpfc_rpi_hdr *
4710 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4711 {
4712         uint16_t rpi_limit, curr_rpi_range;
4713         struct lpfc_dmabuf *dmabuf;
4714         struct lpfc_rpi_hdr *rpi_hdr;
4715
4716         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4717                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4718
4719         spin_lock_irq(&phba->hbalock);
4720         curr_rpi_range = phba->sli4_hba.next_rpi;
4721         spin_unlock_irq(&phba->hbalock);
4722
4723         /*
4724          * The port has a limited number of rpis. The increment here
4725          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4726          * and to allow the full max_rpi range per port.
4727          */
4728         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4729                 return NULL;
4730
4731         /*
4732          * First allocate the protocol header region for the port.  The
4733          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4734          */
4735         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4736         if (!dmabuf)
4737                 return NULL;
4738
4739         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4740                                           LPFC_HDR_TEMPLATE_SIZE,
4741                                           &dmabuf->phys,
4742                                           GFP_KERNEL);
4743         if (!dmabuf->virt) {
4744                 rpi_hdr = NULL;
4745                 goto err_free_dmabuf;
4746         }
4747
4748         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4749         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4750                 rpi_hdr = NULL;
4751                 goto err_free_coherent;
4752         }
4753
4754         /* Save the rpi header data for cleanup later. */
4755         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4756         if (!rpi_hdr)
4757                 goto err_free_coherent;
4758
4759         rpi_hdr->dmabuf = dmabuf;
4760         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4761         rpi_hdr->page_count = 1;
4762         spin_lock_irq(&phba->hbalock);
4763         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4764         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4765
4766         /*
4767          * The next_rpi stores the next module-64 rpi value to post
4768          * in any subsequent rpi memory region postings.
4769          */
4770         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4771         spin_unlock_irq(&phba->hbalock);
4772         return rpi_hdr;
4773
4774  err_free_coherent:
4775         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4776                           dmabuf->virt, dmabuf->phys);
4777  err_free_dmabuf:
4778         kfree(dmabuf);
4779         return NULL;
4780 }
4781
4782 /**
4783  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4784  * @phba: pointer to lpfc hba data structure.
4785  *
4786  * This routine is invoked to remove all memory resources allocated
4787  * to support rpis. This routine presumes the caller has released all
4788  * rpis consumed by fabric or port logins and is prepared to have
4789  * the header pages removed.
4790  **/
4791 void
4792 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4793 {
4794         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4795
4796         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4797                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4798                 list_del(&rpi_hdr->list);
4799                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4800                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4801                 kfree(rpi_hdr->dmabuf);
4802                 kfree(rpi_hdr);
4803         }
4804
4805         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4806         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4807 }
4808
4809 /**
4810  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4811  * @pdev: pointer to pci device data structure.
4812  *
4813  * This routine is invoked to allocate the driver hba data structure for an
4814  * HBA device. If the allocation is successful, the phba reference to the
4815  * PCI device data structure is set.
4816  *
4817  * Return codes
4818  *      pointer to @phba - successful
4819  *      NULL - error
4820  **/
4821 static struct lpfc_hba *
4822 lpfc_hba_alloc(struct pci_dev *pdev)
4823 {
4824         struct lpfc_hba *phba;
4825
4826         /* Allocate memory for HBA structure */
4827         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4828         if (!phba) {
4829                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4830                 return NULL;
4831         }
4832
4833         /* Set reference to PCI device in HBA structure */
4834         phba->pcidev = pdev;
4835
4836         /* Assign an unused board number */
4837         phba->brd_no = lpfc_get_instance();
4838         if (phba->brd_no < 0) {
4839                 kfree(phba);
4840                 return NULL;
4841         }
4842
4843         spin_lock_init(&phba->ct_ev_lock);
4844         INIT_LIST_HEAD(&phba->ct_ev_waiters);
4845
4846         return phba;
4847 }
4848
4849 /**
4850  * lpfc_hba_free - Free driver hba data structure with a device.
4851  * @phba: pointer to lpfc hba data structure.
4852  *
4853  * This routine is invoked to free the driver hba data structure with an
4854  * HBA device.
4855  **/
4856 static void
4857 lpfc_hba_free(struct lpfc_hba *phba)
4858 {
4859         /* Release the driver assigned board number */
4860         idr_remove(&lpfc_hba_index, phba->brd_no);
4861
4862         kfree(phba);
4863         return;
4864 }
4865
4866 /**
4867  * lpfc_create_shost - Create hba physical port with associated scsi host.
4868  * @phba: pointer to lpfc hba data structure.
4869  *
4870  * This routine is invoked to create HBA physical port and associate a SCSI
4871  * host with it.
4872  *
4873  * Return codes
4874  *      0 - successful
4875  *      other values - error
4876  **/
4877 static int
4878 lpfc_create_shost(struct lpfc_hba *phba)
4879 {
4880         struct lpfc_vport *vport;
4881         struct Scsi_Host  *shost;
4882
4883         /* Initialize HBA FC structure */
4884         phba->fc_edtov = FF_DEF_EDTOV;
4885         phba->fc_ratov = FF_DEF_RATOV;
4886         phba->fc_altov = FF_DEF_ALTOV;
4887         phba->fc_arbtov = FF_DEF_ARBTOV;
4888
4889         atomic_set(&phba->sdev_cnt, 0);
4890         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4891         if (!vport)
4892                 return -ENODEV;
4893
4894         shost = lpfc_shost_from_vport(vport);
4895         phba->pport = vport;
4896         lpfc_debugfs_initialize(vport);
4897         /* Put reference to SCSI host to driver's device private data */
4898         pci_set_drvdata(phba->pcidev, shost);
4899
4900         return 0;
4901 }
4902
4903 /**
4904  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4905  * @phba: pointer to lpfc hba data structure.
4906  *
4907  * This routine is invoked to destroy HBA physical port and the associated
4908  * SCSI host.
4909  **/
4910 static void
4911 lpfc_destroy_shost(struct lpfc_hba *phba)
4912 {
4913         struct lpfc_vport *vport = phba->pport;
4914
4915         /* Destroy physical port that associated with the SCSI host */
4916         destroy_port(vport);
4917
4918         return;
4919 }
4920
4921 /**
4922  * lpfc_setup_bg - Setup Block guard structures and debug areas.
4923  * @phba: pointer to lpfc hba data structure.
4924  * @shost: the shost to be used to detect Block guard settings.
4925  *
4926  * This routine sets up the local Block guard protocol settings for @shost.
4927  * This routine also allocates memory for debugging bg buffers.
4928  **/
4929 static void
4930 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4931 {
4932         int pagecnt = 10;
4933         if (lpfc_prot_mask && lpfc_prot_guard) {
4934                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4935                                 "1478 Registering BlockGuard with the "
4936                                 "SCSI layer\n");
4937                 scsi_host_set_prot(shost, lpfc_prot_mask);
4938                 scsi_host_set_guard(shost, lpfc_prot_guard);
4939         }
4940         if (!_dump_buf_data) {
4941                 while (pagecnt) {
4942                         spin_lock_init(&_dump_buf_lock);
4943                         _dump_buf_data =
4944                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4945                         if (_dump_buf_data) {
4946                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4947                                         "9043 BLKGRD: allocated %d pages for "
4948                                        "_dump_buf_data at 0x%p\n",
4949                                        (1 << pagecnt), _dump_buf_data);
4950                                 _dump_buf_data_order = pagecnt;
4951                                 memset(_dump_buf_data, 0,
4952                                        ((1 << PAGE_SHIFT) << pagecnt));
4953                                 break;
4954                         } else
4955                                 --pagecnt;
4956                 }
4957                 if (!_dump_buf_data_order)
4958                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4959                                 "9044 BLKGRD: ERROR unable to allocate "
4960                                "memory for hexdump\n");
4961         } else
4962                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4963                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4964                        "\n", _dump_buf_data);
4965         if (!_dump_buf_dif) {
4966                 while (pagecnt) {
4967                         _dump_buf_dif =
4968                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4969                         if (_dump_buf_dif) {
4970                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4971                                         "9046 BLKGRD: allocated %d pages for "
4972                                        "_dump_buf_dif at 0x%p\n",
4973                                        (1 << pagecnt), _dump_buf_dif);
4974                                 _dump_buf_dif_order = pagecnt;
4975                                 memset(_dump_buf_dif, 0,
4976                                        ((1 << PAGE_SHIFT) << pagecnt));
4977                                 break;
4978                         } else
4979                                 --pagecnt;
4980                 }
4981                 if (!_dump_buf_dif_order)
4982                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4983                         "9047 BLKGRD: ERROR unable to allocate "
4984                                "memory for hexdump\n");
4985         } else
4986                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4987                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4988                        _dump_buf_dif);
4989 }
4990
4991 /**
4992  * lpfc_post_init_setup - Perform necessary device post initialization setup.
4993  * @phba: pointer to lpfc hba data structure.
4994  *
4995  * This routine is invoked to perform all the necessary post initialization
4996  * setup for the device.
4997  **/
4998 static void
4999 lpfc_post_init_setup(struct lpfc_hba *phba)
5000 {
5001         struct Scsi_Host  *shost;
5002         struct lpfc_adapter_event_header adapter_event;
5003
5004         /* Get the default values for Model Name and Description */
5005         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5006
5007         /*
5008          * hba setup may have changed the hba_queue_depth so we need to
5009          * adjust the value of can_queue.
5010          */
5011         shost = pci_get_drvdata(phba->pcidev);
5012         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5013         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5014                 lpfc_setup_bg(phba, shost);
5015
5016         lpfc_host_attrib_init(shost);
5017
5018         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5019                 spin_lock_irq(shost->host_lock);
5020                 lpfc_poll_start_timer(phba);
5021                 spin_unlock_irq(shost->host_lock);
5022         }
5023
5024         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5025                         "0428 Perform SCSI scan\n");
5026         /* Send board arrival event to upper layer */
5027         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5028         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5029         fc_host_post_vendor_event(shost, fc_get_event_number(),
5030                                   sizeof(adapter_event),
5031                                   (char *) &adapter_event,
5032                                   LPFC_NL_VENDOR_ID);
5033         return;
5034 }
5035
5036 /**
5037  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5038  * @phba: pointer to lpfc hba data structure.
5039  *
5040  * This routine is invoked to set up the PCI device memory space for device
5041  * with SLI-3 interface spec.
5042  *
5043  * Return codes
5044  *      0 - successful
5045  *      other values - error
5046  **/
5047 static int
5048 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5049 {
5050         struct pci_dev *pdev;
5051         unsigned long bar0map_len, bar2map_len;
5052         int i, hbq_count;
5053         void *ptr;
5054         int error = -ENODEV;
5055
5056         /* Obtain PCI device reference */
5057         if (!phba->pcidev)
5058                 return error;
5059         else
5060                 pdev = phba->pcidev;
5061
5062         /* Set the device DMA mask size */
5063         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5064          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5065                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5066                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5067                         return error;
5068                 }
5069         }
5070
5071         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5072          * required by each mapping.
5073          */
5074         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5075         bar0map_len = pci_resource_len(pdev, 0);
5076
5077         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5078         bar2map_len = pci_resource_len(pdev, 2);
5079
5080         /* Map HBA SLIM to a kernel virtual address. */
5081         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5082         if (!phba->slim_memmap_p) {
5083                 dev_printk(KERN_ERR, &pdev->dev,
5084                            "ioremap failed for SLIM memory.\n");
5085                 goto out;
5086         }
5087
5088         /* Map HBA Control Registers to a kernel virtual address. */
5089         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5090         if (!phba->ctrl_regs_memmap_p) {
5091                 dev_printk(KERN_ERR, &pdev->dev,
5092                            "ioremap failed for HBA control registers.\n");
5093                 goto out_iounmap_slim;
5094         }
5095
5096         /* Allocate memory for SLI-2 structures */
5097         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5098                                                SLI2_SLIM_SIZE,
5099                                                &phba->slim2p.phys,
5100                                                GFP_KERNEL);
5101         if (!phba->slim2p.virt)
5102                 goto out_iounmap;
5103
5104         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5105         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5106         phba->mbox_ext = (phba->slim2p.virt +
5107                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5108         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5109         phba->IOCBs = (phba->slim2p.virt +
5110                        offsetof(struct lpfc_sli2_slim, IOCBs));
5111
5112         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5113                                                  lpfc_sli_hbq_size(),
5114                                                  &phba->hbqslimp.phys,
5115                                                  GFP_KERNEL);
5116         if (!phba->hbqslimp.virt)
5117                 goto out_free_slim;
5118
5119         hbq_count = lpfc_sli_hbq_count();
5120         ptr = phba->hbqslimp.virt;
5121         for (i = 0; i < hbq_count; ++i) {
5122                 phba->hbqs[i].hbq_virt = ptr;
5123                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5124                 ptr += (lpfc_hbq_defs[i]->entry_count *
5125                         sizeof(struct lpfc_hbq_entry));
5126         }
5127         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5128         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5129
5130         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5131
5132         INIT_LIST_HEAD(&phba->rb_pend_list);
5133
5134         phba->MBslimaddr = phba->slim_memmap_p;
5135         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5136         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5137         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5138         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5139
5140         return 0;
5141
5142 out_free_slim:
5143         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5144                           phba->slim2p.virt, phba->slim2p.phys);
5145 out_iounmap:
5146         iounmap(phba->ctrl_regs_memmap_p);
5147 out_iounmap_slim:
5148         iounmap(phba->slim_memmap_p);
5149 out:
5150         return error;
5151 }
5152
5153 /**
5154  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5155  * @phba: pointer to lpfc hba data structure.
5156  *
5157  * This routine is invoked to unset the PCI device memory space for device
5158  * with SLI-3 interface spec.
5159  **/
5160 static void
5161 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5162 {
5163         struct pci_dev *pdev;
5164
5165         /* Obtain PCI device reference */
5166         if (!phba->pcidev)
5167                 return;
5168         else
5169                 pdev = phba->pcidev;
5170
5171         /* Free coherent DMA memory allocated */
5172         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5173                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5174         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5175                           phba->slim2p.virt, phba->slim2p.phys);
5176
5177         /* I/O memory unmap */
5178         iounmap(phba->ctrl_regs_memmap_p);
5179         iounmap(phba->slim_memmap_p);
5180
5181         return;
5182 }
5183
5184 /**
5185  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5186  * @phba: pointer to lpfc hba data structure.
5187  *
5188  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5189  * done and check status.
5190  *
5191  * Return 0 if successful, otherwise -ENODEV.
5192  **/
5193 int
5194 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5195 {
5196         struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5197         int i, port_error = -ENODEV;
5198
5199         if (!phba->sli4_hba.STAregaddr)
5200                 return -ENODEV;
5201
5202         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5203         for (i = 0; i < 3000; i++) {
5204                 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5205                 /* Encounter fatal POST error, break out */
5206                 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5207                         port_error = -ENODEV;
5208                         break;
5209                 }
5210                 if (LPFC_POST_STAGE_ARMFW_READY ==
5211                     bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5212                         port_error = 0;
5213                         break;
5214                 }
5215                 msleep(10);
5216         }
5217
5218         if (port_error)
5219                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5220                         "1408 Failure HBA POST Status: sta_reg=0x%x, "
5221                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5222                         "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5223                         bf_get(lpfc_hst_state_perr, &sta_reg),
5224                         bf_get(lpfc_hst_state_sfi, &sta_reg),
5225                         bf_get(lpfc_hst_state_nip, &sta_reg),
5226                         bf_get(lpfc_hst_state_ipc, &sta_reg),
5227                         bf_get(lpfc_hst_state_xrom, &sta_reg),
5228                         bf_get(lpfc_hst_state_dl, &sta_reg),
5229                         bf_get(lpfc_hst_state_port_status, &sta_reg));
5230
5231         /* Log device information */
5232         phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5233         if (bf_get(lpfc_sli_intf_valid,
5234                    &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5235                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5236                                 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5237                                 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5238                                 bf_get(lpfc_sli_intf_sli_family,
5239                                        &phba->sli4_hba.sli_intf),
5240                                 bf_get(lpfc_sli_intf_slirev,
5241                                        &phba->sli4_hba.sli_intf),
5242                                 bf_get(lpfc_sli_intf_featurelevel1,
5243                                        &phba->sli4_hba.sli_intf),
5244                                 bf_get(lpfc_sli_intf_featurelevel2,
5245                                        &phba->sli4_hba.sli_intf));
5246         }
5247         phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5248         phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5249         /* With uncoverable error, log the error message and return error */
5250         uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5251         uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5252         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5253             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5254                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5255                                 "1422 HBA Unrecoverable error: "
5256                                 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5257                                 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5258                                 uerrlo_reg.word0, uerrhi_reg.word0,
5259                                 phba->sli4_hba.ue_mask_lo,
5260                                 phba->sli4_hba.ue_mask_hi);
5261                 return -ENODEV;
5262         }
5263
5264         return port_error;
5265 }
5266
5267 /**
5268  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5269  * @phba: pointer to lpfc hba data structure.
5270  *
5271  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5272  * memory map.
5273  **/
5274 static void
5275 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5276 {
5277         phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5278                                         LPFC_UERR_STATUS_LO;
5279         phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5280                                         LPFC_UERR_STATUS_HI;
5281         phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5282                                         LPFC_UE_MASK_LO;
5283         phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5284                                         LPFC_UE_MASK_HI;
5285         phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5286                                         LPFC_SLI_INTF;
5287 }
5288
5289 /**
5290  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5291  * @phba: pointer to lpfc hba data structure.
5292  *
5293  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5294  * memory map.
5295  **/
5296 static void
5297 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5298 {
5299
5300         phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5301                                     LPFC_HST_STATE;
5302         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5303                                     LPFC_HST_ISR0;
5304         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5305                                     LPFC_HST_IMR0;
5306         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5307                                      LPFC_HST_ISCR0;
5308         return;
5309 }
5310
5311 /**
5312  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5313  * @phba: pointer to lpfc hba data structure.
5314  * @vf: virtual function number
5315  *
5316  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5317  * based on the given viftual function number, @vf.
5318  *
5319  * Return 0 if successful, otherwise -ENODEV.
5320  **/
5321 static int
5322 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5323 {
5324         if (vf > LPFC_VIR_FUNC_MAX)
5325                 return -ENODEV;
5326
5327         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5328                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5329         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5330                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5331         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5332                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5333         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5334                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5335         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5336                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5337         return 0;
5338 }
5339
5340 /**
5341  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5342  * @phba: pointer to lpfc hba data structure.
5343  *
5344  * This routine is invoked to create the bootstrap mailbox
5345  * region consistent with the SLI-4 interface spec.  This
5346  * routine allocates all memory necessary to communicate
5347  * mailbox commands to the port and sets up all alignment
5348  * needs.  No locks are expected to be held when calling
5349  * this routine.
5350  *
5351  * Return codes
5352  *      0 - successful
5353  *      -ENOMEM - could not allocated memory.
5354  **/
5355 static int
5356 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5357 {
5358         uint32_t bmbx_size;
5359         struct lpfc_dmabuf *dmabuf;
5360         struct dma_address *dma_address;
5361         uint32_t pa_addr;
5362         uint64_t phys_addr;
5363
5364         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5365         if (!dmabuf)
5366                 return -ENOMEM;
5367
5368         /*
5369          * The bootstrap mailbox region is comprised of 2 parts
5370          * plus an alignment restriction of 16 bytes.
5371          */
5372         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5373         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5374                                           bmbx_size,
5375                                           &dmabuf->phys,
5376                                           GFP_KERNEL);
5377         if (!dmabuf->virt) {
5378                 kfree(dmabuf);
5379                 return -ENOMEM;
5380         }
5381         memset(dmabuf->virt, 0, bmbx_size);
5382
5383         /*
5384          * Initialize the bootstrap mailbox pointers now so that the register
5385          * operations are simple later.  The mailbox dma address is required
5386          * to be 16-byte aligned.  Also align the virtual memory as each
5387          * maibox is copied into the bmbx mailbox region before issuing the
5388          * command to the port.
5389          */
5390         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5391         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5392
5393         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5394                                               LPFC_ALIGN_16_BYTE);
5395         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5396                                               LPFC_ALIGN_16_BYTE);
5397
5398         /*
5399          * Set the high and low physical addresses now.  The SLI4 alignment
5400          * requirement is 16 bytes and the mailbox is posted to the port
5401          * as two 30-bit addresses.  The other data is a bit marking whether
5402          * the 30-bit address is the high or low address.
5403          * Upcast bmbx aphys to 64bits so shift instruction compiles
5404          * clean on 32 bit machines.
5405          */
5406         dma_address = &phba->sli4_hba.bmbx.dma_address;
5407         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5408         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5409         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5410                                            LPFC_BMBX_BIT1_ADDR_HI);
5411
5412         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5413         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5414                                            LPFC_BMBX_BIT1_ADDR_LO);
5415         return 0;
5416 }
5417
5418 /**
5419  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5420  * @phba: pointer to lpfc hba data structure.
5421  *
5422  * This routine is invoked to teardown the bootstrap mailbox
5423  * region and release all host resources. This routine requires
5424  * the caller to ensure all mailbox commands recovered, no
5425  * additional mailbox comands are sent, and interrupts are disabled
5426  * before calling this routine.
5427  *
5428  **/
5429 static void
5430 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5431 {
5432         dma_free_coherent(&phba->pcidev->dev,
5433                           phba->sli4_hba.bmbx.bmbx_size,
5434                           phba->sli4_hba.bmbx.dmabuf->virt,
5435                           phba->sli4_hba.bmbx.dmabuf->phys);
5436
5437         kfree(phba->sli4_hba.bmbx.dmabuf);
5438         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5439 }
5440
5441 /**
5442  * lpfc_sli4_read_config - Get the config parameters.
5443  * @phba: pointer to lpfc hba data structure.
5444  *
5445  * This routine is invoked to read the configuration parameters from the HBA.
5446  * The configuration parameters are used to set the base and maximum values
5447  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5448  * allocation for the port.
5449  *
5450  * Return codes
5451  *      0 - successful
5452  *      -ENOMEM - No availble memory
5453  *      -EIO - The mailbox failed to complete successfully.
5454  **/
5455 static int
5456 lpfc_sli4_read_config(struct lpfc_hba *phba)
5457 {
5458         LPFC_MBOXQ_t *pmb;
5459         struct lpfc_mbx_read_config *rd_config;
5460         uint32_t rc = 0;
5461
5462         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5463         if (!pmb) {
5464                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5465                                 "2011 Unable to allocate memory for issuing "
5466                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5467                 return -ENOMEM;
5468         }
5469
5470         lpfc_read_config(phba, pmb);
5471
5472         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5473         if (rc != MBX_SUCCESS) {
5474                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5475                         "2012 Mailbox failed , mbxCmd x%x "
5476                         "READ_CONFIG, mbxStatus x%x\n",
5477                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5478                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5479                 rc = -EIO;
5480         } else {
5481                 rd_config = &pmb->u.mqe.un.rd_config;
5482                 phba->sli4_hba.max_cfg_param.max_xri =
5483                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5484                 phba->sli4_hba.max_cfg_param.xri_base =
5485                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5486                 phba->sli4_hba.max_cfg_param.max_vpi =
5487                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5488                 phba->sli4_hba.max_cfg_param.vpi_base =
5489                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5490                 phba->sli4_hba.max_cfg_param.max_rpi =
5491                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5492                 phba->sli4_hba.max_cfg_param.rpi_base =
5493                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5494                 phba->sli4_hba.max_cfg_param.max_vfi =
5495                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5496                 phba->sli4_hba.max_cfg_param.vfi_base =
5497                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5498                 phba->sli4_hba.max_cfg_param.max_fcfi =
5499                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5500                 phba->sli4_hba.max_cfg_param.fcfi_base =
5501                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5502                 phba->sli4_hba.max_cfg_param.max_eq =
5503                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5504                 phba->sli4_hba.max_cfg_param.max_rq =
5505                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5506                 phba->sli4_hba.max_cfg_param.max_wq =
5507                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5508                 phba->sli4_hba.max_cfg_param.max_cq =
5509                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5510                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5511                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5512                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5513                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5514                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5515                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5516                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5517                 phba->max_vports = phba->max_vpi;
5518                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5519                                 "2003 cfg params XRI(B:%d M:%d), "
5520                                 "VPI(B:%d M:%d) "
5521                                 "VFI(B:%d M:%d) "
5522                                 "RPI(B:%d M:%d) "
5523                                 "FCFI(B:%d M:%d)\n",
5524                                 phba->sli4_hba.max_cfg_param.xri_base,
5525                                 phba->sli4_hba.max_cfg_param.max_xri,
5526                                 phba->sli4_hba.max_cfg_param.vpi_base,
5527                                 phba->sli4_hba.max_cfg_param.max_vpi,
5528                                 phba->sli4_hba.max_cfg_param.vfi_base,
5529                                 phba->sli4_hba.max_cfg_param.max_vfi,
5530                                 phba->sli4_hba.max_cfg_param.rpi_base,
5531                                 phba->sli4_hba.max_cfg_param.max_rpi,
5532                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5533                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5534         }
5535         mempool_free(pmb, phba->mbox_mem_pool);
5536
5537         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5538         if (phba->cfg_hba_queue_depth >
5539                 (phba->sli4_hba.max_cfg_param.max_xri -
5540                         lpfc_sli4_get_els_iocb_cnt(phba)))
5541                 phba->cfg_hba_queue_depth =
5542                         phba->sli4_hba.max_cfg_param.max_xri -
5543                                 lpfc_sli4_get_els_iocb_cnt(phba);
5544         return rc;
5545 }
5546
5547 /**
5548  * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5549  * @phba: pointer to lpfc hba data structure.
5550  *
5551  * This routine is invoked to setup the host-side endian order to the
5552  * HBA consistent with the SLI-4 interface spec.
5553  *
5554  * Return codes
5555  *      0 - successful
5556  *      -ENOMEM - No availble memory
5557  *      -EIO - The mailbox failed to complete successfully.
5558  **/
5559 static int
5560 lpfc_setup_endian_order(struct lpfc_hba *phba)
5561 {
5562         LPFC_MBOXQ_t *mboxq;
5563         uint32_t rc = 0;
5564         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5565                                       HOST_ENDIAN_HIGH_WORD1};
5566
5567         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5568         if (!mboxq) {
5569                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5570                                 "0492 Unable to allocate memory for issuing "
5571                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5572                 return -ENOMEM;
5573         }
5574
5575         /*
5576          * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5577          * words to contain special data values and no other data.
5578          */
5579         memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5580         memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5581         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5582         if (rc != MBX_SUCCESS) {
5583                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5584                                 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5585                                 "status x%x\n",
5586                                 rc);
5587                 rc = -EIO;
5588         }
5589
5590         mempool_free(mboxq, phba->mbox_mem_pool);
5591         return rc;
5592 }
5593
5594 /**
5595  * lpfc_sli4_queue_create - Create all the SLI4 queues
5596  * @phba: pointer to lpfc hba data structure.
5597  *
5598  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5599  * operation. For each SLI4 queue type, the parameters such as queue entry
5600  * count (queue depth) shall be taken from the module parameter. For now,
5601  * we just use some constant number as place holder.
5602  *
5603  * Return codes
5604  *      0 - successful
5605  *      -ENOMEM - No availble memory
5606  *      -EIO - The mailbox failed to complete successfully.
5607  **/
5608 static int
5609 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5610 {
5611         struct lpfc_queue *qdesc;
5612         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5613         int cfg_fcp_wq_count;
5614         int cfg_fcp_eq_count;
5615
5616         /*
5617          * Sanity check for confiugred queue parameters against the run-time
5618          * device parameters
5619          */
5620
5621         /* Sanity check on FCP fast-path WQ parameters */
5622         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5623         if (cfg_fcp_wq_count >
5624             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5625                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5626                                    LPFC_SP_WQN_DEF;
5627                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5628                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5629                                         "2581 Not enough WQs (%d) from "
5630                                         "the pci function for supporting "
5631                                         "FCP WQs (%d)\n",
5632                                         phba->sli4_hba.max_cfg_param.max_wq,
5633                                         phba->cfg_fcp_wq_count);
5634                         goto out_error;
5635                 }
5636                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5637                                 "2582 Not enough WQs (%d) from the pci "
5638                                 "function for supporting the requested "
5639                                 "FCP WQs (%d), the actual FCP WQs can "
5640                                 "be supported: %d\n",
5641                                 phba->sli4_hba.max_cfg_param.max_wq,
5642                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5643         }
5644         /* The actual number of FCP work queues adopted */
5645         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5646
5647         /* Sanity check on FCP fast-path EQ parameters */
5648         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5649         if (cfg_fcp_eq_count >
5650             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5651                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5652                                    LPFC_SP_EQN_DEF;
5653                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5654                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5655                                         "2574 Not enough EQs (%d) from the "
5656                                         "pci function for supporting FCP "
5657                                         "EQs (%d)\n",
5658                                         phba->sli4_hba.max_cfg_param.max_eq,
5659                                         phba->cfg_fcp_eq_count);
5660                         goto out_error;
5661                 }
5662                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5663                                 "2575 Not enough EQs (%d) from the pci "
5664                                 "function for supporting the requested "
5665                                 "FCP EQs (%d), the actual FCP EQs can "
5666                                 "be supported: %d\n",
5667                                 phba->sli4_hba.max_cfg_param.max_eq,
5668                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5669         }
5670         /* It does not make sense to have more EQs than WQs */
5671         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5672                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5673                                 "2593 The FCP EQ count(%d) cannot be greater "
5674                                 "than the FCP WQ count(%d), limiting the "
5675                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5676                                 phba->cfg_fcp_wq_count,
5677                                 phba->cfg_fcp_wq_count);
5678                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5679         }
5680         /* The actual number of FCP event queues adopted */
5681         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5682         /* The overall number of event queues used */
5683         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5684
5685         /*
5686          * Create Event Queues (EQs)
5687          */
5688
5689         /* Get EQ depth from module parameter, fake the default for now */
5690         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5691         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5692
5693         /* Create slow path event queue */
5694         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5695                                       phba->sli4_hba.eq_ecount);
5696         if (!qdesc) {
5697                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5698                                 "0496 Failed allocate slow-path EQ\n");
5699                 goto out_error;
5700         }
5701         phba->sli4_hba.sp_eq = qdesc;
5702
5703         /* Create fast-path FCP Event Queue(s) */
5704         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5705                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5706         if (!phba->sli4_hba.fp_eq) {
5707                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5708                                 "2576 Failed allocate memory for fast-path "
5709                                 "EQ record array\n");
5710                 goto out_free_sp_eq;
5711         }
5712         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5713                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5714                                               phba->sli4_hba.eq_ecount);
5715                 if (!qdesc) {
5716                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5717                                         "0497 Failed allocate fast-path EQ\n");
5718                         goto out_free_fp_eq;
5719                 }
5720                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5721         }
5722
5723         /*
5724          * Create Complete Queues (CQs)
5725          */
5726
5727         /* Get CQ depth from module parameter, fake the default for now */
5728         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5729         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5730
5731         /* Create slow-path Mailbox Command Complete Queue */
5732         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5733                                       phba->sli4_hba.cq_ecount);
5734         if (!qdesc) {
5735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5736                                 "0500 Failed allocate slow-path mailbox CQ\n");
5737                 goto out_free_fp_eq;
5738         }
5739         phba->sli4_hba.mbx_cq = qdesc;
5740
5741         /* Create slow-path ELS Complete Queue */
5742         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5743                                       phba->sli4_hba.cq_ecount);
5744         if (!qdesc) {
5745                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5746                                 "0501 Failed allocate slow-path ELS CQ\n");
5747                 goto out_free_mbx_cq;
5748         }
5749         phba->sli4_hba.els_cq = qdesc;
5750
5751
5752         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5753         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5754                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
5755         if (!phba->sli4_hba.fcp_cq) {
5756                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5757                                 "2577 Failed allocate memory for fast-path "
5758                                 "CQ record array\n");
5759                 goto out_free_els_cq;
5760         }
5761         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5762                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5763                                               phba->sli4_hba.cq_ecount);
5764                 if (!qdesc) {
5765                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5766                                         "0499 Failed allocate fast-path FCP "
5767                                         "CQ (%d)\n", fcp_cqidx);
5768                         goto out_free_fcp_cq;
5769                 }
5770                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5771         }
5772
5773         /* Create Mailbox Command Queue */
5774         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5775         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5776
5777         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5778                                       phba->sli4_hba.mq_ecount);
5779         if (!qdesc) {
5780                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5781                                 "0505 Failed allocate slow-path MQ\n");
5782                 goto out_free_fcp_cq;
5783         }
5784         phba->sli4_hba.mbx_wq = qdesc;
5785
5786         /*
5787          * Create all the Work Queues (WQs)
5788          */
5789         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5790         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5791
5792         /* Create slow-path ELS Work Queue */
5793         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5794                                       phba->sli4_hba.wq_ecount);
5795         if (!qdesc) {
5796                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5797                                 "0504 Failed allocate slow-path ELS WQ\n");
5798                 goto out_free_mbx_wq;
5799         }
5800         phba->sli4_hba.els_wq = qdesc;
5801
5802         /* Create fast-path FCP Work Queue(s) */
5803         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5804                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
5805         if (!phba->sli4_hba.fcp_wq) {
5806                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5807                                 "2578 Failed allocate memory for fast-path "
5808                                 "WQ record array\n");
5809                 goto out_free_els_wq;
5810         }
5811         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5812                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5813                                               phba->sli4_hba.wq_ecount);
5814                 if (!qdesc) {
5815                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5816                                         "0503 Failed allocate fast-path FCP "
5817                                         "WQ (%d)\n", fcp_wqidx);
5818                         goto out_free_fcp_wq;
5819                 }
5820                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5821         }
5822
5823         /*
5824          * Create Receive Queue (RQ)
5825          */
5826         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5827         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5828
5829         /* Create Receive Queue for header */
5830         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5831                                       phba->sli4_hba.rq_ecount);
5832         if (!qdesc) {
5833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5834                                 "0506 Failed allocate receive HRQ\n");
5835                 goto out_free_fcp_wq;
5836         }
5837         phba->sli4_hba.hdr_rq = qdesc;
5838
5839         /* Create Receive Queue for data */
5840         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5841                                       phba->sli4_hba.rq_ecount);
5842         if (!qdesc) {
5843                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5844                                 "0507 Failed allocate receive DRQ\n");
5845                 goto out_free_hdr_rq;
5846         }
5847         phba->sli4_hba.dat_rq = qdesc;
5848
5849         return 0;
5850
5851 out_free_hdr_rq:
5852         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5853         phba->sli4_hba.hdr_rq = NULL;
5854 out_free_fcp_wq:
5855         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5856                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5857                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5858         }
5859         kfree(phba->sli4_hba.fcp_wq);
5860 out_free_els_wq:
5861         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5862         phba->sli4_hba.els_wq = NULL;
5863 out_free_mbx_wq:
5864         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5865         phba->sli4_hba.mbx_wq = NULL;
5866 out_free_fcp_cq:
5867         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5868                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5869                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5870         }
5871         kfree(phba->sli4_hba.fcp_cq);
5872 out_free_els_cq:
5873         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5874         phba->sli4_hba.els_cq = NULL;
5875 out_free_mbx_cq:
5876         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5877         phba->sli4_hba.mbx_cq = NULL;
5878 out_free_fp_eq:
5879         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5880                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5881                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5882         }
5883         kfree(phba->sli4_hba.fp_eq);
5884 out_free_sp_eq:
5885         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5886         phba->sli4_hba.sp_eq = NULL;
5887 out_error:
5888         return -ENOMEM;
5889 }
5890
5891 /**
5892  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5893  * @phba: pointer to lpfc hba data structure.
5894  *
5895  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5896  * operation.
5897  *
5898  * Return codes
5899  *      0 - successful
5900  *      -ENOMEM - No availble memory
5901  *      -EIO - The mailbox failed to complete successfully.
5902  **/
5903 static void
5904 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5905 {
5906         int fcp_qidx;
5907
5908         /* Release mailbox command work queue */
5909         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5910         phba->sli4_hba.mbx_wq = NULL;
5911
5912         /* Release ELS work queue */
5913         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5914         phba->sli4_hba.els_wq = NULL;
5915
5916         /* Release FCP work queue */
5917         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5918                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5919         kfree(phba->sli4_hba.fcp_wq);
5920         phba->sli4_hba.fcp_wq = NULL;
5921
5922         /* Release unsolicited receive queue */
5923         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5924         phba->sli4_hba.hdr_rq = NULL;
5925         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5926         phba->sli4_hba.dat_rq = NULL;
5927
5928         /* Release ELS complete queue */
5929         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5930         phba->sli4_hba.els_cq = NULL;
5931
5932         /* Release mailbox command complete queue */
5933         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5934         phba->sli4_hba.mbx_cq = NULL;
5935
5936         /* Release FCP response complete queue */
5937         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5938                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5939         kfree(phba->sli4_hba.fcp_cq);
5940         phba->sli4_hba.fcp_cq = NULL;
5941
5942         /* Release fast-path event queue */
5943         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5944                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5945         kfree(phba->sli4_hba.fp_eq);
5946         phba->sli4_hba.fp_eq = NULL;
5947
5948         /* Release slow-path event queue */
5949         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5950         phba->sli4_hba.sp_eq = NULL;
5951
5952         return;
5953 }
5954
5955 /**
5956  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5957  * @phba: pointer to lpfc hba data structure.
5958  *
5959  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5960  * operation.
5961  *
5962  * Return codes
5963  *      0 - successful
5964  *      -ENOMEM - No availble memory
5965  *      -EIO - The mailbox failed to complete successfully.
5966  **/
5967 int
5968 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5969 {
5970         int rc = -ENOMEM;
5971         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5972         int fcp_cq_index = 0;
5973
5974         /*
5975          * Set up Event Queues (EQs)
5976          */
5977
5978         /* Set up slow-path event queue */
5979         if (!phba->sli4_hba.sp_eq) {
5980                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5981                                 "0520 Slow-path EQ not allocated\n");
5982                 goto out_error;
5983         }
5984         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5985                             LPFC_SP_DEF_IMAX);
5986         if (rc) {
5987                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5988                                 "0521 Failed setup of slow-path EQ: "
5989                                 "rc = 0x%x\n", rc);
5990                 goto out_error;
5991         }
5992         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5993                         "2583 Slow-path EQ setup: queue-id=%d\n",
5994                         phba->sli4_hba.sp_eq->queue_id);
5995
5996         /* Set up fast-path event queue */
5997         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5998                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5999                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6000                                         "0522 Fast-path EQ (%d) not "
6001                                         "allocated\n", fcp_eqidx);
6002                         goto out_destroy_fp_eq;
6003                 }
6004                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6005                                     phba->cfg_fcp_imax);
6006                 if (rc) {
6007                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6008                                         "0523 Failed setup of fast-path EQ "
6009                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6010                         goto out_destroy_fp_eq;
6011                 }
6012                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6013                                 "2584 Fast-path EQ setup: "
6014                                 "queue[%d]-id=%d\n", fcp_eqidx,
6015                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6016         }
6017
6018         /*
6019          * Set up Complete Queues (CQs)
6020          */
6021
6022         /* Set up slow-path MBOX Complete Queue as the first CQ */
6023         if (!phba->sli4_hba.mbx_cq) {
6024                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6025                                 "0528 Mailbox CQ not allocated\n");
6026                 goto out_destroy_fp_eq;
6027         }
6028         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6029                             LPFC_MCQ, LPFC_MBOX);
6030         if (rc) {
6031                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6032                                 "0529 Failed setup of slow-path mailbox CQ: "
6033                                 "rc = 0x%x\n", rc);
6034                 goto out_destroy_fp_eq;
6035         }
6036         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6037                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6038                         phba->sli4_hba.mbx_cq->queue_id,
6039                         phba->sli4_hba.sp_eq->queue_id);
6040
6041         /* Set up slow-path ELS Complete Queue */
6042         if (!phba->sli4_hba.els_cq) {
6043                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6044                                 "0530 ELS CQ not allocated\n");
6045                 goto out_destroy_mbx_cq;
6046         }
6047         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6048                             LPFC_WCQ, LPFC_ELS);
6049         if (rc) {
6050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6051                                 "0531 Failed setup of slow-path ELS CQ: "
6052                                 "rc = 0x%x\n", rc);
6053                 goto out_destroy_mbx_cq;
6054         }
6055         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6056                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6057                         phba->sli4_hba.els_cq->queue_id,
6058                         phba->sli4_hba.sp_eq->queue_id);
6059
6060         /* Set up fast-path FCP Response Complete Queue */
6061         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6062                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6063                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6064                                         "0526 Fast-path FCP CQ (%d) not "
6065                                         "allocated\n", fcp_cqidx);
6066                         goto out_destroy_fcp_cq;
6067                 }
6068                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6069                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6070                                     LPFC_WCQ, LPFC_FCP);
6071                 if (rc) {
6072                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6073                                         "0527 Failed setup of fast-path FCP "
6074                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6075                         goto out_destroy_fcp_cq;
6076                 }
6077                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6078                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6079                                 "parent eq[%d]-id=%d\n",
6080                                 fcp_cqidx,
6081                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6082                                 fcp_cqidx,
6083                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6084         }
6085
6086         /*
6087          * Set up all the Work Queues (WQs)
6088          */
6089
6090         /* Set up Mailbox Command Queue */
6091         if (!phba->sli4_hba.mbx_wq) {
6092                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6093                                 "0538 Slow-path MQ not allocated\n");
6094                 goto out_destroy_fcp_cq;
6095         }
6096         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6097                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6098         if (rc) {
6099                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6100                                 "0539 Failed setup of slow-path MQ: "
6101                                 "rc = 0x%x\n", rc);
6102                 goto out_destroy_fcp_cq;
6103         }
6104         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6105                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6106                         phba->sli4_hba.mbx_wq->queue_id,
6107                         phba->sli4_hba.mbx_cq->queue_id);
6108
6109         /* Set up slow-path ELS Work Queue */
6110         if (!phba->sli4_hba.els_wq) {
6111                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6112                                 "0536 Slow-path ELS WQ not allocated\n");
6113                 goto out_destroy_mbx_wq;
6114         }
6115         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6116                             phba->sli4_hba.els_cq, LPFC_ELS);
6117         if (rc) {
6118                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6119                                 "0537 Failed setup of slow-path ELS WQ: "
6120                                 "rc = 0x%x\n", rc);
6121                 goto out_destroy_mbx_wq;
6122         }
6123         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6124                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6125                         phba->sli4_hba.els_wq->queue_id,
6126                         phba->sli4_hba.els_cq->queue_id);
6127
6128         /* Set up fast-path FCP Work Queue */
6129         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6130                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6131                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6132                                         "0534 Fast-path FCP WQ (%d) not "
6133                                         "allocated\n", fcp_wqidx);
6134                         goto out_destroy_fcp_wq;
6135                 }
6136                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6137                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6138                                     LPFC_FCP);
6139                 if (rc) {
6140                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6141                                         "0535 Failed setup of fast-path FCP "
6142                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6143                         goto out_destroy_fcp_wq;
6144                 }
6145                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6146                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6147                                 "parent cq[%d]-id=%d\n",
6148                                 fcp_wqidx,
6149                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6150                                 fcp_cq_index,
6151                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6152                 /* Round robin FCP Work Queue's Completion Queue assignment */
6153                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6154         }
6155
6156         /*
6157          * Create Receive Queue (RQ)
6158          */
6159         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6160                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6161                                 "0540 Receive Queue not allocated\n");
6162                 goto out_destroy_fcp_wq;
6163         }
6164         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6165                             phba->sli4_hba.els_cq, LPFC_USOL);
6166         if (rc) {
6167                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6168                                 "0541 Failed setup of Receive Queue: "
6169                                 "rc = 0x%x\n", rc);
6170                 goto out_destroy_fcp_wq;
6171         }
6172         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6173                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6174                         "parent cq-id=%d\n",
6175                         phba->sli4_hba.hdr_rq->queue_id,
6176                         phba->sli4_hba.dat_rq->queue_id,
6177                         phba->sli4_hba.els_cq->queue_id);
6178         return 0;
6179
6180 out_destroy_fcp_wq:
6181         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6182                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6183         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6184 out_destroy_mbx_wq:
6185         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6186 out_destroy_fcp_cq:
6187         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6188                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6189         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6190 out_destroy_mbx_cq:
6191         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6192 out_destroy_fp_eq:
6193         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6194                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6195         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6196 out_error:
6197         return rc;
6198 }
6199
6200 /**
6201  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6202  * @phba: pointer to lpfc hba data structure.
6203  *
6204  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6205  * operation.
6206  *
6207  * Return codes
6208  *      0 - successful
6209  *      -ENOMEM - No availble memory
6210  *      -EIO - The mailbox failed to complete successfully.
6211  **/
6212 void
6213 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6214 {
6215         int fcp_qidx;
6216
6217         /* Unset mailbox command work queue */
6218         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6219         /* Unset ELS work queue */
6220         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6221         /* Unset unsolicited receive queue */
6222         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6223         /* Unset FCP work queue */
6224         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6225                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6226         /* Unset mailbox command complete queue */
6227         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6228         /* Unset ELS complete queue */
6229         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6230         /* Unset FCP response complete queue */
6231         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6232                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6233         /* Unset fast-path event queue */
6234         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6235                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6236         /* Unset slow-path event queue */
6237         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6238 }
6239
6240 /**
6241  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6242  * @phba: pointer to lpfc hba data structure.
6243  *
6244  * This routine is invoked to allocate and set up a pool of completion queue
6245  * events. The body of the completion queue event is a completion queue entry
6246  * CQE. For now, this pool is used for the interrupt service routine to queue
6247  * the following HBA completion queue events for the worker thread to process:
6248  *   - Mailbox asynchronous events
6249  *   - Receive queue completion unsolicited events
6250  * Later, this can be used for all the slow-path events.
6251  *
6252  * Return codes
6253  *      0 - successful
6254  *      -ENOMEM - No availble memory
6255  **/
6256 static int
6257 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6258 {
6259         struct lpfc_cq_event *cq_event;
6260         int i;
6261
6262         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6263                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6264                 if (!cq_event)
6265                         goto out_pool_create_fail;
6266                 list_add_tail(&cq_event->list,
6267                               &phba->sli4_hba.sp_cqe_event_pool);
6268         }
6269         return 0;
6270
6271 out_pool_create_fail:
6272         lpfc_sli4_cq_event_pool_destroy(phba);
6273         return -ENOMEM;
6274 }
6275
6276 /**
6277  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6278  * @phba: pointer to lpfc hba data structure.
6279  *
6280  * This routine is invoked to free the pool of completion queue events at
6281  * driver unload time. Note that, it is the responsibility of the driver
6282  * cleanup routine to free all the outstanding completion-queue events
6283  * allocated from this pool back into the pool before invoking this routine
6284  * to destroy the pool.
6285  **/
6286 static void
6287 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6288 {
6289         struct lpfc_cq_event *cq_event, *next_cq_event;
6290
6291         list_for_each_entry_safe(cq_event, next_cq_event,
6292                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6293                 list_del(&cq_event->list);
6294                 kfree(cq_event);
6295         }
6296 }
6297
6298 /**
6299  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6300  * @phba: pointer to lpfc hba data structure.
6301  *
6302  * This routine is the lock free version of the API invoked to allocate a
6303  * completion-queue event from the free pool.
6304  *
6305  * Return: Pointer to the newly allocated completion-queue event if successful
6306  *         NULL otherwise.
6307  **/
6308 struct lpfc_cq_event *
6309 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6310 {
6311         struct lpfc_cq_event *cq_event = NULL;
6312
6313         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6314                          struct lpfc_cq_event, list);
6315         return cq_event;
6316 }
6317
6318 /**
6319  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6320  * @phba: pointer to lpfc hba data structure.
6321  *
6322  * This routine is the lock version of the API invoked to allocate a
6323  * completion-queue event from the free pool.
6324  *
6325  * Return: Pointer to the newly allocated completion-queue event if successful
6326  *         NULL otherwise.
6327  **/
6328 struct lpfc_cq_event *
6329 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6330 {
6331         struct lpfc_cq_event *cq_event;
6332         unsigned long iflags;
6333
6334         spin_lock_irqsave(&phba->hbalock, iflags);
6335         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6336         spin_unlock_irqrestore(&phba->hbalock, iflags);
6337         return cq_event;
6338 }
6339
6340 /**
6341  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6342  * @phba: pointer to lpfc hba data structure.
6343  * @cq_event: pointer to the completion queue event to be freed.
6344  *
6345  * This routine is the lock free version of the API invoked to release a
6346  * completion-queue event back into the free pool.
6347  **/
6348 void
6349 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6350                              struct lpfc_cq_event *cq_event)
6351 {
6352         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6353 }
6354
6355 /**
6356  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6357  * @phba: pointer to lpfc hba data structure.
6358  * @cq_event: pointer to the completion queue event to be freed.
6359  *
6360  * This routine is the lock version of the API invoked to release a
6361  * completion-queue event back into the free pool.
6362  **/
6363 void
6364 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6365                            struct lpfc_cq_event *cq_event)
6366 {
6367         unsigned long iflags;
6368         spin_lock_irqsave(&phba->hbalock, iflags);
6369         __lpfc_sli4_cq_event_release(phba, cq_event);
6370         spin_unlock_irqrestore(&phba->hbalock, iflags);
6371 }
6372
6373 /**
6374  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6375  * @phba: pointer to lpfc hba data structure.
6376  *
6377  * This routine is to free all the pending completion-queue events to the
6378  * back into the free pool for device reset.
6379  **/
6380 static void
6381 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6382 {
6383         LIST_HEAD(cqelist);
6384         struct lpfc_cq_event *cqe;
6385         unsigned long iflags;
6386
6387         /* Retrieve all the pending WCQEs from pending WCQE lists */
6388         spin_lock_irqsave(&phba->hbalock, iflags);
6389         /* Pending FCP XRI abort events */
6390         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6391                          &cqelist);
6392         /* Pending ELS XRI abort events */
6393         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6394                          &cqelist);
6395         /* Pending asynnc events */
6396         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6397                          &cqelist);
6398         spin_unlock_irqrestore(&phba->hbalock, iflags);
6399
6400         while (!list_empty(&cqelist)) {
6401                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6402                 lpfc_sli4_cq_event_release(phba, cqe);
6403         }
6404 }
6405
6406 /**
6407  * lpfc_pci_function_reset - Reset pci function.
6408  * @phba: pointer to lpfc hba data structure.
6409  *
6410  * This routine is invoked to request a PCI function reset. It will destroys
6411  * all resources assigned to the PCI function which originates this request.
6412  *
6413  * Return codes
6414  *      0 - successful
6415  *      -ENOMEM - No availble memory
6416  *      -EIO - The mailbox failed to complete successfully.
6417  **/
6418 int
6419 lpfc_pci_function_reset(struct lpfc_hba *phba)
6420 {
6421         LPFC_MBOXQ_t *mboxq;
6422         uint32_t rc = 0;
6423         uint32_t shdr_status, shdr_add_status;
6424         union lpfc_sli4_cfg_shdr *shdr;
6425
6426         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6427         if (!mboxq) {
6428                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6429                                 "0494 Unable to allocate memory for issuing "
6430                                 "SLI_FUNCTION_RESET mailbox command\n");
6431                 return -ENOMEM;
6432         }
6433
6434         /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6435         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6436                          LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6437                          LPFC_SLI4_MBX_EMBED);
6438         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6439         shdr = (union lpfc_sli4_cfg_shdr *)
6440                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6441         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6442         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6443         if (rc != MBX_TIMEOUT)
6444                 mempool_free(mboxq, phba->mbox_mem_pool);
6445         if (shdr_status || shdr_add_status || rc) {
6446                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6447                                 "0495 SLI_FUNCTION_RESET mailbox failed with "
6448                                 "status x%x add_status x%x, mbx status x%x\n",
6449                                 shdr_status, shdr_add_status, rc);
6450                 rc = -ENXIO;
6451         }
6452         return rc;
6453 }
6454
6455 /**
6456  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6457  * @phba: pointer to lpfc hba data structure.
6458  * @cnt: number of nop mailbox commands to send.
6459  *
6460  * This routine is invoked to send a number @cnt of NOP mailbox command and
6461  * wait for each command to complete.
6462  *
6463  * Return: the number of NOP mailbox command completed.
6464  **/
6465 static int
6466 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6467 {
6468         LPFC_MBOXQ_t *mboxq;
6469         int length, cmdsent;
6470         uint32_t mbox_tmo;
6471         uint32_t rc = 0;
6472         uint32_t shdr_status, shdr_add_status;
6473         union lpfc_sli4_cfg_shdr *shdr;
6474
6475         if (cnt == 0) {
6476                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6477                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6478                 return cnt;
6479         }
6480
6481         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6482         if (!mboxq) {
6483                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6484                                 "2519 Unable to allocate memory for issuing "
6485                                 "NOP mailbox command\n");
6486                 return 0;
6487         }
6488
6489         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6490         length = (sizeof(struct lpfc_mbx_nop) -
6491                   sizeof(struct lpfc_sli4_cfg_mhdr));
6492         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6493                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6494
6495         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6496         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6497                 if (!phba->sli4_hba.intr_enable)
6498                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6499                 else
6500                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6501                 if (rc == MBX_TIMEOUT)
6502                         break;
6503                 /* Check return status */
6504                 shdr = (union lpfc_sli4_cfg_shdr *)
6505                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6506                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6507                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6508                                          &shdr->response);
6509                 if (shdr_status || shdr_add_status || rc) {
6510                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6511                                         "2520 NOP mailbox command failed "
6512                                         "status x%x add_status x%x mbx "
6513                                         "status x%x\n", shdr_status,
6514                                         shdr_add_status, rc);
6515                         break;
6516                 }
6517         }
6518
6519         if (rc != MBX_TIMEOUT)
6520                 mempool_free(mboxq, phba->mbox_mem_pool);
6521
6522         return cmdsent;
6523 }
6524
6525 /**
6526  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6527  * @phba: pointer to lpfc hba data structure.
6528  *
6529  * This routine is invoked to set up the PCI device memory space for device
6530  * with SLI-4 interface spec.
6531  *
6532  * Return codes
6533  *      0 - successful
6534  *      other values - error
6535  **/
6536 static int
6537 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6538 {
6539         struct pci_dev *pdev;
6540         unsigned long bar0map_len, bar1map_len, bar2map_len;
6541         int error = -ENODEV;
6542
6543         /* Obtain PCI device reference */
6544         if (!phba->pcidev)
6545                 return error;
6546         else
6547                 pdev = phba->pcidev;
6548
6549         /* Set the device DMA mask size */
6550         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6551          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6552                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6553                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6554                         return error;
6555                 }
6556         }
6557
6558         /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6559          * number of bytes required by each mapping. They are actually
6560          * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6561          */
6562         if (pci_resource_start(pdev, 0)) {
6563                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6564                 bar0map_len = pci_resource_len(pdev, 0);
6565         } else {
6566                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6567                 bar0map_len = pci_resource_len(pdev, 1);
6568         }
6569         phba->pci_bar1_map = pci_resource_start(pdev, 2);
6570         bar1map_len = pci_resource_len(pdev, 2);
6571
6572         phba->pci_bar2_map = pci_resource_start(pdev, 4);
6573         bar2map_len = pci_resource_len(pdev, 4);
6574
6575         /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6576         phba->sli4_hba.conf_regs_memmap_p =
6577                                 ioremap(phba->pci_bar0_map, bar0map_len);
6578         if (!phba->sli4_hba.conf_regs_memmap_p) {
6579                 dev_printk(KERN_ERR, &pdev->dev,
6580                            "ioremap failed for SLI4 PCI config registers.\n");
6581                 goto out;
6582         }
6583
6584         /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6585         phba->sli4_hba.ctrl_regs_memmap_p =
6586                                 ioremap(phba->pci_bar1_map, bar1map_len);
6587         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6588                 dev_printk(KERN_ERR, &pdev->dev,
6589                            "ioremap failed for SLI4 HBA control registers.\n");
6590                 goto out_iounmap_conf;
6591         }
6592
6593         /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6594         phba->sli4_hba.drbl_regs_memmap_p =
6595                                 ioremap(phba->pci_bar2_map, bar2map_len);
6596         if (!phba->sli4_hba.drbl_regs_memmap_p) {
6597                 dev_printk(KERN_ERR, &pdev->dev,
6598                            "ioremap failed for SLI4 HBA doorbell registers.\n");
6599                 goto out_iounmap_ctrl;
6600         }
6601
6602         /* Set up BAR0 PCI config space register memory map */
6603         lpfc_sli4_bar0_register_memmap(phba);
6604
6605         /* Set up BAR1 register memory map */
6606         lpfc_sli4_bar1_register_memmap(phba);
6607
6608         /* Set up BAR2 register memory map */
6609         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6610         if (error)
6611                 goto out_iounmap_all;
6612
6613         return 0;
6614
6615 out_iounmap_all:
6616         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6617 out_iounmap_ctrl:
6618         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6619 out_iounmap_conf:
6620         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6621 out:
6622         return error;
6623 }
6624
6625 /**
6626  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6627  * @phba: pointer to lpfc hba data structure.
6628  *
6629  * This routine is invoked to unset the PCI device memory space for device
6630  * with SLI-4 interface spec.
6631  **/
6632 static void
6633 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6634 {
6635         struct pci_dev *pdev;
6636
6637         /* Obtain PCI device reference */
6638         if (!phba->pcidev)
6639                 return;
6640         else
6641                 pdev = phba->pcidev;
6642
6643         /* Free coherent DMA memory allocated */
6644
6645         /* Unmap I/O memory space */
6646         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6647         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6648         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6649
6650         return;
6651 }
6652
6653 /**
6654  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6655  * @phba: pointer to lpfc hba data structure.
6656  *
6657  * This routine is invoked to enable the MSI-X interrupt vectors to device
6658  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6659  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6660  * invoked, enables either all or nothing, depending on the current
6661  * availability of PCI vector resources. The device driver is responsible
6662  * for calling the individual request_irq() to register each MSI-X vector
6663  * with a interrupt handler, which is done in this function. Note that
6664  * later when device is unloading, the driver should always call free_irq()
6665  * on all MSI-X vectors it has done request_irq() on before calling
6666  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6667  * will be left with MSI-X enabled and leaks its vectors.
6668  *
6669  * Return codes
6670  *   0 - successful
6671  *   other values - error
6672  **/
6673 static int
6674 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6675 {
6676         int rc, i;
6677         LPFC_MBOXQ_t *pmb;
6678
6679         /* Set up MSI-X multi-message vectors */
6680         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6681                 phba->msix_entries[i].entry = i;
6682
6683         /* Configure MSI-X capability structure */
6684         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6685                                 ARRAY_SIZE(phba->msix_entries));
6686         if (rc) {
6687                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6688                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
6689                 goto msi_fail_out;
6690         }
6691         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6692                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6693                                 "0477 MSI-X entry[%d]: vector=x%x "
6694                                 "message=%d\n", i,
6695                                 phba->msix_entries[i].vector,
6696                                 phba->msix_entries[i].entry);
6697         /*
6698          * Assign MSI-X vectors to interrupt handlers
6699          */
6700
6701         /* vector-0 is associated to slow-path handler */
6702         rc = request_irq(phba->msix_entries[0].vector,
6703                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6704                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6705         if (rc) {
6706                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6707                                 "0421 MSI-X slow-path request_irq failed "
6708                                 "(%d)\n", rc);
6709                 goto msi_fail_out;
6710         }
6711
6712         /* vector-1 is associated to fast-path handler */
6713         rc = request_irq(phba->msix_entries[1].vector,
6714                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6715                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
6716
6717         if (rc) {
6718                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6719                                 "0429 MSI-X fast-path request_irq failed "
6720                                 "(%d)\n", rc);
6721                 goto irq_fail_out;
6722         }
6723
6724         /*
6725          * Configure HBA MSI-X attention conditions to messages
6726          */
6727         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6728
6729         if (!pmb) {
6730                 rc = -ENOMEM;
6731                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6732                                 "0474 Unable to allocate memory for issuing "
6733                                 "MBOX_CONFIG_MSI command\n");
6734                 goto mem_fail_out;
6735         }
6736         rc = lpfc_config_msi(phba, pmb);
6737         if (rc)
6738                 goto mbx_fail_out;
6739         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6740         if (rc != MBX_SUCCESS) {
6741                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6742                                 "0351 Config MSI mailbox command failed, "
6743                                 "mbxCmd x%x, mbxStatus x%x\n",
6744                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6745                 goto mbx_fail_out;
6746         }
6747
6748         /* Free memory allocated for mailbox command */
6749         mempool_free(pmb, phba->mbox_mem_pool);
6750         return rc;
6751
6752 mbx_fail_out:
6753         /* Free memory allocated for mailbox command */
6754         mempool_free(pmb, phba->mbox_mem_pool);
6755
6756 mem_fail_out:
6757         /* free the irq already requested */
6758         free_irq(phba->msix_entries[1].vector, phba);
6759
6760 irq_fail_out:
6761         /* free the irq already requested */
6762         free_irq(phba->msix_entries[0].vector, phba);
6763
6764 msi_fail_out:
6765         /* Unconfigure MSI-X capability structure */
6766         pci_disable_msix(phba->pcidev);
6767         return rc;
6768 }
6769
6770 /**
6771  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6772  * @phba: pointer to lpfc hba data structure.
6773  *
6774  * This routine is invoked to release the MSI-X vectors and then disable the
6775  * MSI-X interrupt mode to device with SLI-3 interface spec.
6776  **/
6777 static void
6778 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6779 {
6780         int i;
6781
6782         /* Free up MSI-X multi-message vectors */
6783         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6784                 free_irq(phba->msix_entries[i].vector, phba);
6785         /* Disable MSI-X */
6786         pci_disable_msix(phba->pcidev);
6787
6788         return;
6789 }
6790
6791 /**
6792  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6793  * @phba: pointer to lpfc hba data structure.
6794  *
6795  * This routine is invoked to enable the MSI interrupt mode to device with
6796  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6797  * enable the MSI vector. The device driver is responsible for calling the
6798  * request_irq() to register MSI vector with a interrupt the handler, which
6799  * is done in this function.
6800  *
6801  * Return codes
6802  *      0 - successful
6803  *      other values - error
6804  */
6805 static int
6806 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6807 {
6808         int rc;
6809
6810         rc = pci_enable_msi(phba->pcidev);
6811         if (!rc)
6812                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6813                                 "0462 PCI enable MSI mode success.\n");
6814         else {
6815                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6816                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
6817                 return rc;
6818         }
6819
6820         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6821                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6822         if (rc) {
6823                 pci_disable_msi(phba->pcidev);
6824                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6825                                 "0478 MSI request_irq failed (%d)\n", rc);
6826         }
6827         return rc;
6828 }
6829
6830 /**
6831  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6832  * @phba: pointer to lpfc hba data structure.
6833  *
6834  * This routine is invoked to disable the MSI interrupt mode to device with
6835  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6836  * done request_irq() on before calling pci_disable_msi(). Failure to do so
6837  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6838  * its vector.
6839  */
6840 static void
6841 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6842 {
6843         free_irq(phba->pcidev->irq, phba);
6844         pci_disable_msi(phba->pcidev);
6845         return;
6846 }
6847
6848 /**
6849  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6850  * @phba: pointer to lpfc hba data structure.
6851  *
6852  * This routine is invoked to enable device interrupt and associate driver's
6853  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6854  * spec. Depends on the interrupt mode configured to the driver, the driver
6855  * will try to fallback from the configured interrupt mode to an interrupt
6856  * mode which is supported by the platform, kernel, and device in the order
6857  * of:
6858  * MSI-X -> MSI -> IRQ.
6859  *
6860  * Return codes
6861  *   0 - successful
6862  *   other values - error
6863  **/
6864 static uint32_t
6865 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6866 {
6867         uint32_t intr_mode = LPFC_INTR_ERROR;
6868         int retval;
6869
6870         if (cfg_mode == 2) {
6871                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6872                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6873                 if (!retval) {
6874                         /* Now, try to enable MSI-X interrupt mode */
6875                         retval = lpfc_sli_enable_msix(phba);
6876                         if (!retval) {
6877                                 /* Indicate initialization to MSI-X mode */
6878                                 phba->intr_type = MSIX;
6879                                 intr_mode = 2;
6880                         }
6881                 }
6882         }
6883
6884         /* Fallback to MSI if MSI-X initialization failed */
6885         if (cfg_mode >= 1 && phba->intr_type == NONE) {
6886                 retval = lpfc_sli_enable_msi(phba);
6887                 if (!retval) {
6888                         /* Indicate initialization to MSI mode */
6889                         phba->intr_type = MSI;
6890                         intr_mode = 1;
6891                 }
6892         }
6893
6894         /* Fallback to INTx if both MSI-X/MSI initalization failed */
6895         if (phba->intr_type == NONE) {
6896                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6897                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6898                 if (!retval) {
6899                         /* Indicate initialization to INTx mode */
6900                         phba->intr_type = INTx;
6901                         intr_mode = 0;
6902                 }
6903         }
6904         return intr_mode;
6905 }
6906
6907 /**
6908  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6909  * @phba: pointer to lpfc hba data structure.
6910  *
6911  * This routine is invoked to disable device interrupt and disassociate the
6912  * driver's interrupt handler(s) from interrupt vector(s) to device with
6913  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6914  * release the interrupt vector(s) for the message signaled interrupt.
6915  **/
6916 static void
6917 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6918 {
6919         /* Disable the currently initialized interrupt mode */
6920         if (phba->intr_type == MSIX)
6921                 lpfc_sli_disable_msix(phba);
6922         else if (phba->intr_type == MSI)
6923                 lpfc_sli_disable_msi(phba);
6924         else if (phba->intr_type == INTx)
6925                 free_irq(phba->pcidev->irq, phba);
6926
6927         /* Reset interrupt management states */
6928         phba->intr_type = NONE;
6929         phba->sli.slistat.sli_intr = 0;
6930
6931         return;
6932 }
6933
6934 /**
6935  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6936  * @phba: pointer to lpfc hba data structure.
6937  *
6938  * This routine is invoked to enable the MSI-X interrupt vectors to device
6939  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6940  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6941  * enables either all or nothing, depending on the current availability of
6942  * PCI vector resources. The device driver is responsible for calling the
6943  * individual request_irq() to register each MSI-X vector with a interrupt
6944  * handler, which is done in this function. Note that later when device is
6945  * unloading, the driver should always call free_irq() on all MSI-X vectors
6946  * it has done request_irq() on before calling pci_disable_msix(). Failure
6947  * to do so results in a BUG_ON() and a device will be left with MSI-X
6948  * enabled and leaks its vectors.
6949  *
6950  * Return codes
6951  * 0 - successful
6952  * other values - error
6953  **/
6954 static int
6955 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6956 {
6957         int vectors, rc, index;
6958
6959         /* Set up MSI-X multi-message vectors */
6960         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6961                 phba->sli4_hba.msix_entries[index].entry = index;
6962
6963         /* Configure MSI-X capability structure */
6964         vectors = phba->sli4_hba.cfg_eqn;
6965 enable_msix_vectors:
6966         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6967                              vectors);
6968         if (rc > 1) {
6969                 vectors = rc;
6970                 goto enable_msix_vectors;
6971         } else if (rc) {
6972                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6973                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
6974                 goto msi_fail_out;
6975         }
6976
6977         /* Log MSI-X vector assignment */
6978         for (index = 0; index < vectors; index++)
6979                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6980                                 "0489 MSI-X entry[%d]: vector=x%x "
6981                                 "message=%d\n", index,
6982                                 phba->sli4_hba.msix_entries[index].vector,
6983                                 phba->sli4_hba.msix_entries[index].entry);
6984         /*
6985          * Assign MSI-X vectors to interrupt handlers
6986          */
6987
6988         /* The first vector must associated to slow-path handler for MQ */
6989         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6990                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6991                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6992         if (rc) {
6993                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6994                                 "0485 MSI-X slow-path request_irq failed "
6995                                 "(%d)\n", rc);
6996                 goto msi_fail_out;
6997         }
6998
6999         /* The rest of the vector(s) are associated to fast-path handler(s) */
7000         for (index = 1; index < vectors; index++) {
7001                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
7002                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7003                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7004                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7005                                  LPFC_FP_DRIVER_HANDLER_NAME,
7006                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7007                 if (rc) {
7008                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7009                                         "0486 MSI-X fast-path (%d) "
7010                                         "request_irq failed (%d)\n", index, rc);
7011                         goto cfg_fail_out;
7012                 }
7013         }
7014         phba->sli4_hba.msix_vec_nr = vectors;
7015
7016         return rc;
7017
7018 cfg_fail_out:
7019         /* free the irq already requested */
7020         for (--index; index >= 1; index--)
7021                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7022                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7023
7024         /* free the irq already requested */
7025         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7026
7027 msi_fail_out:
7028         /* Unconfigure MSI-X capability structure */
7029         pci_disable_msix(phba->pcidev);
7030         return rc;
7031 }
7032
7033 /**
7034  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7035  * @phba: pointer to lpfc hba data structure.
7036  *
7037  * This routine is invoked to release the MSI-X vectors and then disable the
7038  * MSI-X interrupt mode to device with SLI-4 interface spec.
7039  **/
7040 static void
7041 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7042 {
7043         int index;
7044
7045         /* Free up MSI-X multi-message vectors */
7046         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7047
7048         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7049                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7050                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7051
7052         /* Disable MSI-X */
7053         pci_disable_msix(phba->pcidev);
7054
7055         return;
7056 }
7057
7058 /**
7059  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7060  * @phba: pointer to lpfc hba data structure.
7061  *
7062  * This routine is invoked to enable the MSI interrupt mode to device with
7063  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7064  * to enable the MSI vector. The device driver is responsible for calling
7065  * the request_irq() to register MSI vector with a interrupt the handler,
7066  * which is done in this function.
7067  *
7068  * Return codes
7069  *      0 - successful
7070  *      other values - error
7071  **/
7072 static int
7073 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7074 {
7075         int rc, index;
7076
7077         rc = pci_enable_msi(phba->pcidev);
7078         if (!rc)
7079                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7080                                 "0487 PCI enable MSI mode success.\n");
7081         else {
7082                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7083                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7084                 return rc;
7085         }
7086
7087         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7088                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7089         if (rc) {
7090                 pci_disable_msi(phba->pcidev);
7091                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7092                                 "0490 MSI request_irq failed (%d)\n", rc);
7093                 return rc;
7094         }
7095
7096         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7097                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7098                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7099         }
7100
7101         return 0;
7102 }
7103
7104 /**
7105  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7106  * @phba: pointer to lpfc hba data structure.
7107  *
7108  * This routine is invoked to disable the MSI interrupt mode to device with
7109  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7110  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7111  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7112  * its vector.
7113  **/
7114 static void
7115 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7116 {
7117         free_irq(phba->pcidev->irq, phba);
7118         pci_disable_msi(phba->pcidev);
7119         return;
7120 }
7121
7122 /**
7123  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7124  * @phba: pointer to lpfc hba data structure.
7125  *
7126  * This routine is invoked to enable device interrupt and associate driver's
7127  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7128  * interface spec. Depends on the interrupt mode configured to the driver,
7129  * the driver will try to fallback from the configured interrupt mode to an
7130  * interrupt mode which is supported by the platform, kernel, and device in
7131  * the order of:
7132  * MSI-X -> MSI -> IRQ.
7133  *
7134  * Return codes
7135  *      0 - successful
7136  *      other values - error
7137  **/
7138 static uint32_t
7139 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7140 {
7141         uint32_t intr_mode = LPFC_INTR_ERROR;
7142         int retval, index;
7143
7144         if (cfg_mode == 2) {
7145                 /* Preparation before conf_msi mbox cmd */
7146                 retval = 0;
7147                 if (!retval) {
7148                         /* Now, try to enable MSI-X interrupt mode */
7149                         retval = lpfc_sli4_enable_msix(phba);
7150                         if (!retval) {
7151                                 /* Indicate initialization to MSI-X mode */
7152                                 phba->intr_type = MSIX;
7153                                 intr_mode = 2;
7154                         }
7155                 }
7156         }
7157
7158         /* Fallback to MSI if MSI-X initialization failed */
7159         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7160                 retval = lpfc_sli4_enable_msi(phba);
7161                 if (!retval) {
7162                         /* Indicate initialization to MSI mode */
7163                         phba->intr_type = MSI;
7164                         intr_mode = 1;
7165                 }
7166         }
7167
7168         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7169         if (phba->intr_type == NONE) {
7170                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7171                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7172                 if (!retval) {
7173                         /* Indicate initialization to INTx mode */
7174                         phba->intr_type = INTx;
7175                         intr_mode = 0;
7176                         for (index = 0; index < phba->cfg_fcp_eq_count;
7177                              index++) {
7178                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7179                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7180                         }
7181                 }
7182         }
7183         return intr_mode;
7184 }
7185
7186 /**
7187  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7188  * @phba: pointer to lpfc hba data structure.
7189  *
7190  * This routine is invoked to disable device interrupt and disassociate
7191  * the driver's interrupt handler(s) from interrupt vector(s) to device
7192  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7193  * will release the interrupt vector(s) for the message signaled interrupt.
7194  **/
7195 static void
7196 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7197 {
7198         /* Disable the currently initialized interrupt mode */
7199         if (phba->intr_type == MSIX)
7200                 lpfc_sli4_disable_msix(phba);
7201         else if (phba->intr_type == MSI)
7202                 lpfc_sli4_disable_msi(phba);
7203         else if (phba->intr_type == INTx)
7204                 free_irq(phba->pcidev->irq, phba);
7205
7206         /* Reset interrupt management states */
7207         phba->intr_type = NONE;
7208         phba->sli.slistat.sli_intr = 0;
7209
7210         return;
7211 }
7212
7213 /**
7214  * lpfc_unset_hba - Unset SLI3 hba device initialization
7215  * @phba: pointer to lpfc hba data structure.
7216  *
7217  * This routine is invoked to unset the HBA device initialization steps to
7218  * a device with SLI-3 interface spec.
7219  **/
7220 static void
7221 lpfc_unset_hba(struct lpfc_hba *phba)
7222 {
7223         struct lpfc_vport *vport = phba->pport;
7224         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7225
7226         spin_lock_irq(shost->host_lock);
7227         vport->load_flag |= FC_UNLOADING;
7228         spin_unlock_irq(shost->host_lock);
7229
7230         lpfc_stop_hba_timers(phba);
7231
7232         phba->pport->work_port_events = 0;
7233
7234         lpfc_sli_hba_down(phba);
7235
7236         lpfc_sli_brdrestart(phba);
7237
7238         lpfc_sli_disable_intr(phba);
7239
7240         return;
7241 }
7242
7243 /**
7244  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7245  * @phba: pointer to lpfc hba data structure.
7246  *
7247  * This routine is invoked to unset the HBA device initialization steps to
7248  * a device with SLI-4 interface spec.
7249  **/
7250 static void
7251 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7252 {
7253         struct lpfc_vport *vport = phba->pport;
7254         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7255
7256         spin_lock_irq(shost->host_lock);
7257         vport->load_flag |= FC_UNLOADING;
7258         spin_unlock_irq(shost->host_lock);
7259
7260         phba->pport->work_port_events = 0;
7261
7262         /* Stop the SLI4 device port */
7263         lpfc_stop_port(phba);
7264
7265         lpfc_sli4_disable_intr(phba);
7266
7267         /* Reset SLI4 HBA FCoE function */
7268         lpfc_pci_function_reset(phba);
7269
7270         return;
7271 }
7272
7273 /**
7274  * lpfc_sli4_hba_unset - Unset the fcoe hba
7275  * @phba: Pointer to HBA context object.
7276  *
7277  * This function is called in the SLI4 code path to reset the HBA's FCoE
7278  * function. The caller is not required to hold any lock. This routine
7279  * issues PCI function reset mailbox command to reset the FCoE function.
7280  * At the end of the function, it calls lpfc_hba_down_post function to
7281  * free any pending commands.
7282  **/
7283 static void
7284 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7285 {
7286         int wait_cnt = 0;
7287         LPFC_MBOXQ_t *mboxq;
7288
7289         lpfc_stop_hba_timers(phba);
7290         phba->sli4_hba.intr_enable = 0;
7291
7292         /*
7293          * Gracefully wait out the potential current outstanding asynchronous
7294          * mailbox command.
7295          */
7296
7297         /* First, block any pending async mailbox command from posted */
7298         spin_lock_irq(&phba->hbalock);
7299         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7300         spin_unlock_irq(&phba->hbalock);
7301         /* Now, trying to wait it out if we can */
7302         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7303                 msleep(10);
7304                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7305                         break;
7306         }
7307         /* Forcefully release the outstanding mailbox command if timed out */
7308         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7309                 spin_lock_irq(&phba->hbalock);
7310                 mboxq = phba->sli.mbox_active;
7311                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7312                 __lpfc_mbox_cmpl_put(phba, mboxq);
7313                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7314                 phba->sli.mbox_active = NULL;
7315                 spin_unlock_irq(&phba->hbalock);
7316         }
7317
7318         /* Disable PCI subsystem interrupt */
7319         lpfc_sli4_disable_intr(phba);
7320
7321         /* Stop kthread signal shall trigger work_done one more time */
7322         kthread_stop(phba->worker_thread);
7323
7324         /* Reset SLI4 HBA FCoE function */
7325         lpfc_pci_function_reset(phba);
7326
7327         /* Stop the SLI4 device port */
7328         phba->pport->work_port_events = 0;
7329 }
7330
7331  /**
7332  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7333  * @phba: Pointer to HBA context object.
7334  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7335  *
7336  * This function is called in the SLI4 code path to read the port's
7337  * sli4 capabilities.
7338  *
7339  * This function may be be called from any context that can block-wait
7340  * for the completion.  The expectation is that this routine is called
7341  * typically from probe_one or from the online routine.
7342  **/
7343 int
7344 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7345 {
7346         int rc;
7347         struct lpfc_mqe *mqe;
7348         struct lpfc_pc_sli4_params *sli4_params;
7349         uint32_t mbox_tmo;
7350
7351         rc = 0;
7352         mqe = &mboxq->u.mqe;
7353
7354         /* Read the port's SLI4 Parameters port capabilities */
7355         lpfc_sli4_params(mboxq);
7356         if (!phba->sli4_hba.intr_enable)
7357                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7358         else {
7359                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7360                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7361         }
7362
7363         if (unlikely(rc))
7364                 return 1;
7365
7366         sli4_params = &phba->sli4_hba.pc_sli4_params;
7367         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7368         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7369         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7370         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7371                                              &mqe->un.sli4_params);
7372         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7373                                              &mqe->un.sli4_params);
7374         sli4_params->proto_types = mqe->un.sli4_params.word3;
7375         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7376         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7377         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7378         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7379         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7380         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7381         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7382         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7383         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7384         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7385         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7386         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7387         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7388         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7389         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7390         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7391         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7392         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7393         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7394         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7395         return rc;
7396 }
7397
7398 /**
7399  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7400  * @pdev: pointer to PCI device
7401  * @pid: pointer to PCI device identifier
7402  *
7403  * This routine is to be called to attach a device with SLI-3 interface spec
7404  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7405  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7406  * information of the device and driver to see if the driver state that it can
7407  * support this kind of device. If the match is successful, the driver core
7408  * invokes this routine. If this routine determines it can claim the HBA, it
7409  * does all the initialization that it needs to do to handle the HBA properly.
7410  *
7411  * Return code
7412  *      0 - driver can claim the device
7413  *      negative value - driver can not claim the device
7414  **/
7415 static int __devinit
7416 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7417 {
7418         struct lpfc_hba   *phba;
7419         struct lpfc_vport *vport = NULL;
7420         struct Scsi_Host  *shost = NULL;
7421         int error;
7422         uint32_t cfg_mode, intr_mode;
7423
7424         /* Allocate memory for HBA structure */
7425         phba = lpfc_hba_alloc(pdev);
7426         if (!phba)
7427                 return -ENOMEM;
7428
7429         /* Perform generic PCI device enabling operation */
7430         error = lpfc_enable_pci_dev(phba);
7431         if (error) {
7432                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7433                                 "1401 Failed to enable pci device.\n");
7434                 goto out_free_phba;
7435         }
7436
7437         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7438         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7439         if (error)
7440                 goto out_disable_pci_dev;
7441
7442         /* Set up SLI-3 specific device PCI memory space */
7443         error = lpfc_sli_pci_mem_setup(phba);
7444         if (error) {
7445                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7446                                 "1402 Failed to set up pci memory space.\n");
7447                 goto out_disable_pci_dev;
7448         }
7449
7450         /* Set up phase-1 common device driver resources */
7451         error = lpfc_setup_driver_resource_phase1(phba);
7452         if (error) {
7453                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7454                                 "1403 Failed to set up driver resource.\n");
7455                 goto out_unset_pci_mem_s3;
7456         }
7457
7458         /* Set up SLI-3 specific device driver resources */
7459         error = lpfc_sli_driver_resource_setup(phba);
7460         if (error) {
7461                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7462                                 "1404 Failed to set up driver resource.\n");
7463                 goto out_unset_pci_mem_s3;
7464         }
7465
7466         /* Initialize and populate the iocb list per host */
7467         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7468         if (error) {
7469                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7470                                 "1405 Failed to initialize iocb list.\n");
7471                 goto out_unset_driver_resource_s3;
7472         }
7473
7474         /* Set up common device driver resources */
7475         error = lpfc_setup_driver_resource_phase2(phba);
7476         if (error) {
7477                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7478                                 "1406 Failed to set up driver resource.\n");
7479                 goto out_free_iocb_list;
7480         }
7481
7482         /* Create SCSI host to the physical port */
7483         error = lpfc_create_shost(phba);
7484         if (error) {
7485                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7486                                 "1407 Failed to create scsi host.\n");
7487                 goto out_unset_driver_resource;
7488         }
7489
7490         /* Configure sysfs attributes */
7491         vport = phba->pport;
7492         error = lpfc_alloc_sysfs_attr(vport);
7493         if (error) {
7494                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7495                                 "1476 Failed to allocate sysfs attr\n");
7496                 goto out_destroy_shost;
7497         }
7498
7499         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7500         /* Now, trying to enable interrupt and bring up the device */
7501         cfg_mode = phba->cfg_use_msi;
7502         while (true) {
7503                 /* Put device to a known state before enabling interrupt */
7504                 lpfc_stop_port(phba);
7505                 /* Configure and enable interrupt */
7506                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7507                 if (intr_mode == LPFC_INTR_ERROR) {
7508                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7509                                         "0431 Failed to enable interrupt.\n");
7510                         error = -ENODEV;
7511                         goto out_free_sysfs_attr;
7512                 }
7513                 /* SLI-3 HBA setup */
7514                 if (lpfc_sli_hba_setup(phba)) {
7515                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7516                                         "1477 Failed to set up hba\n");
7517                         error = -ENODEV;
7518                         goto out_remove_device;
7519                 }
7520
7521                 /* Wait 50ms for the interrupts of previous mailbox commands */
7522                 msleep(50);
7523                 /* Check active interrupts on message signaled interrupts */
7524                 if (intr_mode == 0 ||
7525                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7526                         /* Log the current active interrupt mode */
7527                         phba->intr_mode = intr_mode;
7528                         lpfc_log_intr_mode(phba, intr_mode);
7529                         break;
7530                 } else {
7531                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7532                                         "0447 Configure interrupt mode (%d) "
7533                                         "failed active interrupt test.\n",
7534                                         intr_mode);
7535                         /* Disable the current interrupt mode */
7536                         lpfc_sli_disable_intr(phba);
7537                         /* Try next level of interrupt mode */
7538                         cfg_mode = --intr_mode;
7539                 }
7540         }
7541
7542         /* Perform post initialization setup */
7543         lpfc_post_init_setup(phba);
7544
7545         /* Check if there are static vports to be created. */
7546         lpfc_create_static_vport(phba);
7547
7548         return 0;
7549
7550 out_remove_device:
7551         lpfc_unset_hba(phba);
7552 out_free_sysfs_attr:
7553         lpfc_free_sysfs_attr(vport);
7554 out_destroy_shost:
7555         lpfc_destroy_shost(phba);
7556 out_unset_driver_resource:
7557         lpfc_unset_driver_resource_phase2(phba);
7558 out_free_iocb_list:
7559         lpfc_free_iocb_list(phba);
7560 out_unset_driver_resource_s3:
7561         lpfc_sli_driver_resource_unset(phba);
7562 out_unset_pci_mem_s3:
7563         lpfc_sli_pci_mem_unset(phba);
7564 out_disable_pci_dev:
7565         lpfc_disable_pci_dev(phba);
7566         if (shost)
7567                 scsi_host_put(shost);
7568 out_free_phba:
7569         lpfc_hba_free(phba);
7570         return error;
7571 }
7572
7573 /**
7574  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7575  * @pdev: pointer to PCI device
7576  *
7577  * This routine is to be called to disattach a device with SLI-3 interface
7578  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7579  * removed from PCI bus, it performs all the necessary cleanup for the HBA
7580  * device to be removed from the PCI subsystem properly.
7581  **/
7582 static void __devexit
7583 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7584 {
7585         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
7586         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7587         struct lpfc_vport **vports;
7588         struct lpfc_hba   *phba = vport->phba;
7589         int i;
7590         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7591
7592         spin_lock_irq(&phba->hbalock);
7593         vport->load_flag |= FC_UNLOADING;
7594         spin_unlock_irq(&phba->hbalock);
7595
7596         lpfc_free_sysfs_attr(vport);
7597
7598         /* Release all the vports against this physical port */
7599         vports = lpfc_create_vport_work_array(phba);
7600         if (vports != NULL)
7601                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7602                         fc_vport_terminate(vports[i]->fc_vport);
7603         lpfc_destroy_vport_work_array(phba, vports);
7604
7605         /* Remove FC host and then SCSI host with the physical port */
7606         fc_remove_host(shost);
7607         scsi_remove_host(shost);
7608         lpfc_cleanup(vport);
7609
7610         /*
7611          * Bring down the SLI Layer. This step disable all interrupts,
7612          * clears the rings, discards all mailbox commands, and resets
7613          * the HBA.
7614          */
7615
7616         /* HBA interrupt will be diabled after this call */
7617         lpfc_sli_hba_down(phba);
7618         /* Stop kthread signal shall trigger work_done one more time */
7619         kthread_stop(phba->worker_thread);
7620         /* Final cleanup of txcmplq and reset the HBA */
7621         lpfc_sli_brdrestart(phba);
7622
7623         lpfc_stop_hba_timers(phba);
7624         spin_lock_irq(&phba->hbalock);
7625         list_del_init(&vport->listentry);
7626         spin_unlock_irq(&phba->hbalock);
7627
7628         lpfc_debugfs_terminate(vport);
7629
7630         /* Disable interrupt */
7631         lpfc_sli_disable_intr(phba);
7632
7633         pci_set_drvdata(pdev, NULL);
7634         scsi_host_put(shost);
7635
7636         /*
7637          * Call scsi_free before mem_free since scsi bufs are released to their
7638          * corresponding pools here.
7639          */
7640         lpfc_scsi_free(phba);
7641         lpfc_mem_free_all(phba);
7642
7643         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7644                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7645
7646         /* Free resources associated with SLI2 interface */
7647         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7648                           phba->slim2p.virt, phba->slim2p.phys);
7649
7650         /* unmap adapter SLIM and Control Registers */
7651         iounmap(phba->ctrl_regs_memmap_p);
7652         iounmap(phba->slim_memmap_p);
7653
7654         lpfc_hba_free(phba);
7655
7656         pci_release_selected_regions(pdev, bars);
7657         pci_disable_device(pdev);
7658 }
7659
7660 /**
7661  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7662  * @pdev: pointer to PCI device
7663  * @msg: power management message
7664  *
7665  * This routine is to be called from the kernel's PCI subsystem to support
7666  * system Power Management (PM) to device with SLI-3 interface spec. When
7667  * PM invokes this method, it quiesces the device by stopping the driver's
7668  * worker thread for the device, turning off device's interrupt and DMA,
7669  * and bring the device offline. Note that as the driver implements the
7670  * minimum PM requirements to a power-aware driver's PM support for the
7671  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7672  * to the suspend() method call will be treated as SUSPEND and the driver will
7673  * fully reinitialize its device during resume() method call, the driver will
7674  * set device to PCI_D3hot state in PCI config space instead of setting it
7675  * according to the @msg provided by the PM.
7676  *
7677  * Return code
7678  *      0 - driver suspended the device
7679  *      Error otherwise
7680  **/
7681 static int
7682 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7683 {
7684         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7685         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7686
7687         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7688                         "0473 PCI device Power Management suspend.\n");
7689
7690         /* Bring down the device */
7691         lpfc_offline_prep(phba);
7692         lpfc_offline(phba);
7693         kthread_stop(phba->worker_thread);
7694
7695         /* Disable interrupt from device */
7696         lpfc_sli_disable_intr(phba);
7697
7698         /* Save device state to PCI config space */
7699         pci_save_state(pdev);
7700         pci_set_power_state(pdev, PCI_D3hot);
7701
7702         return 0;
7703 }
7704
7705 /**
7706  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7707  * @pdev: pointer to PCI device
7708  *
7709  * This routine is to be called from the kernel's PCI subsystem to support
7710  * system Power Management (PM) to device with SLI-3 interface spec. When PM
7711  * invokes this method, it restores the device's PCI config space state and
7712  * fully reinitializes the device and brings it online. Note that as the
7713  * driver implements the minimum PM requirements to a power-aware driver's
7714  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7715  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7716  * driver will fully reinitialize its device during resume() method call,
7717  * the device will be set to PCI_D0 directly in PCI config space before
7718  * restoring the state.
7719  *
7720  * Return code
7721  *      0 - driver suspended the device
7722  *      Error otherwise
7723  **/
7724 static int
7725 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7726 {
7727         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7728         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7729         uint32_t intr_mode;
7730         int error;
7731
7732         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7733                         "0452 PCI device Power Management resume.\n");
7734
7735         /* Restore device state from PCI config space */
7736         pci_set_power_state(pdev, PCI_D0);
7737         pci_restore_state(pdev);
7738
7739         /*
7740          * As the new kernel behavior of pci_restore_state() API call clears
7741          * device saved_state flag, need to save the restored state again.
7742          */
7743         pci_save_state(pdev);
7744
7745         if (pdev->is_busmaster)
7746                 pci_set_master(pdev);
7747
7748         /* Startup the kernel thread for this host adapter. */
7749         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7750                                         "lpfc_worker_%d", phba->brd_no);
7751         if (IS_ERR(phba->worker_thread)) {
7752                 error = PTR_ERR(phba->worker_thread);
7753                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7754                                 "0434 PM resume failed to start worker "
7755                                 "thread: error=x%x.\n", error);
7756                 return error;
7757         }
7758
7759         /* Configure and enable interrupt */
7760         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7761         if (intr_mode == LPFC_INTR_ERROR) {
7762                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7763                                 "0430 PM resume Failed to enable interrupt\n");
7764                 return -EIO;
7765         } else
7766                 phba->intr_mode = intr_mode;
7767
7768         /* Restart HBA and bring it online */
7769         lpfc_sli_brdrestart(phba);
7770         lpfc_online(phba);
7771
7772         /* Log the current active interrupt mode */
7773         lpfc_log_intr_mode(phba, phba->intr_mode);
7774
7775         return 0;
7776 }
7777
7778 /**
7779  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7780  * @phba: pointer to lpfc hba data structure.
7781  *
7782  * This routine is called to prepare the SLI3 device for PCI slot recover. It
7783  * aborts all the outstanding SCSI I/Os to the pci device.
7784  **/
7785 static void
7786 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7787 {
7788         struct lpfc_sli *psli = &phba->sli;
7789         struct lpfc_sli_ring  *pring;
7790
7791         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7792                         "2723 PCI channel I/O abort preparing for recovery\n");
7793
7794         /*
7795          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7796          * and let the SCSI mid-layer to retry them to recover.
7797          */
7798         pring = &psli->ring[psli->fcp_ring];
7799         lpfc_sli_abort_iocb_ring(phba, pring);
7800 }
7801
7802 /**
7803  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7804  * @phba: pointer to lpfc hba data structure.
7805  *
7806  * This routine is called to prepare the SLI3 device for PCI slot reset. It
7807  * disables the device interrupt and pci device, and aborts the internal FCP
7808  * pending I/Os.
7809  **/
7810 static void
7811 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7812 {
7813         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7814                         "2710 PCI channel disable preparing for reset\n");
7815
7816         /* Block any management I/Os to the device */
7817         lpfc_block_mgmt_io(phba);
7818
7819         /* Block all SCSI devices' I/Os on the host */
7820         lpfc_scsi_dev_block(phba);
7821
7822         /* stop all timers */
7823         lpfc_stop_hba_timers(phba);
7824
7825         /* Disable interrupt and pci device */
7826         lpfc_sli_disable_intr(phba);
7827         pci_disable_device(phba->pcidev);
7828
7829         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7830         lpfc_sli_flush_fcp_rings(phba);
7831 }
7832
7833 /**
7834  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7835  * @phba: pointer to lpfc hba data structure.
7836  *
7837  * This routine is called to prepare the SLI3 device for PCI slot permanently
7838  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7839  * pending I/Os.
7840  **/
7841 static void
7842 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7843 {
7844         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7845                         "2711 PCI channel permanent disable for failure\n");
7846         /* Block all SCSI devices' I/Os on the host */
7847         lpfc_scsi_dev_block(phba);
7848
7849         /* stop all timers */
7850         lpfc_stop_hba_timers(phba);
7851
7852         /* Clean up all driver's outstanding SCSI I/Os */
7853         lpfc_sli_flush_fcp_rings(phba);
7854 }
7855
7856 /**
7857  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7858  * @pdev: pointer to PCI device.
7859  * @state: the current PCI connection state.
7860  *
7861  * This routine is called from the PCI subsystem for I/O error handling to
7862  * device with SLI-3 interface spec. This function is called by the PCI
7863  * subsystem after a PCI bus error affecting this device has been detected.
7864  * When this function is invoked, it will need to stop all the I/Os and
7865  * interrupt(s) to the device. Once that is done, it will return
7866  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7867  * as desired.
7868  *
7869  * Return codes
7870  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7871  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7872  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7873  **/
7874 static pci_ers_result_t
7875 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7876 {
7877         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7878         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7879
7880         switch (state) {
7881         case pci_channel_io_normal:
7882                 /* Non-fatal error, prepare for recovery */
7883                 lpfc_sli_prep_dev_for_recover(phba);
7884                 return PCI_ERS_RESULT_CAN_RECOVER;
7885         case pci_channel_io_frozen:
7886                 /* Fatal error, prepare for slot reset */
7887                 lpfc_sli_prep_dev_for_reset(phba);
7888                 return PCI_ERS_RESULT_NEED_RESET;
7889         case pci_channel_io_perm_failure:
7890                 /* Permanent failure, prepare for device down */
7891                 lpfc_sli_prep_dev_for_perm_failure(phba);
7892                 return PCI_ERS_RESULT_DISCONNECT;
7893         default:
7894                 /* Unknown state, prepare and request slot reset */
7895                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7896                                 "0472 Unknown PCI error state: x%x\n", state);
7897                 lpfc_sli_prep_dev_for_reset(phba);
7898                 return PCI_ERS_RESULT_NEED_RESET;
7899         }
7900 }
7901
7902 /**
7903  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7904  * @pdev: pointer to PCI device.
7905  *
7906  * This routine is called from the PCI subsystem for error handling to
7907  * device with SLI-3 interface spec. This is called after PCI bus has been
7908  * reset to restart the PCI card from scratch, as if from a cold-boot.
7909  * During the PCI subsystem error recovery, after driver returns
7910  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7911  * recovery and then call this routine before calling the .resume method
7912  * to recover the device. This function will initialize the HBA device,
7913  * enable the interrupt, but it will just put the HBA to offline state
7914  * without passing any I/O traffic.
7915  *
7916  * Return codes
7917  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
7918  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7919  */
7920 static pci_ers_result_t
7921 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7922 {
7923         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7924         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7925         struct lpfc_sli *psli = &phba->sli;
7926         uint32_t intr_mode;
7927
7928         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7929         if (pci_enable_device_mem(pdev)) {
7930                 printk(KERN_ERR "lpfc: Cannot re-enable "
7931                         "PCI device after reset.\n");
7932                 return PCI_ERS_RESULT_DISCONNECT;
7933         }
7934
7935         pci_restore_state(pdev);
7936
7937         /*
7938          * As the new kernel behavior of pci_restore_state() API call clears
7939          * device saved_state flag, need to save the restored state again.
7940          */
7941         pci_save_state(pdev);
7942
7943         if (pdev->is_busmaster)
7944                 pci_set_master(pdev);
7945
7946         spin_lock_irq(&phba->hbalock);
7947         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7948         spin_unlock_irq(&phba->hbalock);
7949
7950         /* Configure and enable interrupt */
7951         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7952         if (intr_mode == LPFC_INTR_ERROR) {
7953                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7954                                 "0427 Cannot re-enable interrupt after "
7955                                 "slot reset.\n");
7956                 return PCI_ERS_RESULT_DISCONNECT;
7957         } else
7958                 phba->intr_mode = intr_mode;
7959
7960         /* Take device offline, it will perform cleanup */
7961         lpfc_offline_prep(phba);
7962         lpfc_offline(phba);
7963         lpfc_sli_brdrestart(phba);
7964
7965         /* Log the current active interrupt mode */
7966         lpfc_log_intr_mode(phba, phba->intr_mode);
7967
7968         return PCI_ERS_RESULT_RECOVERED;
7969 }
7970
7971 /**
7972  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7973  * @pdev: pointer to PCI device
7974  *
7975  * This routine is called from the PCI subsystem for error handling to device
7976  * with SLI-3 interface spec. It is called when kernel error recovery tells
7977  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7978  * error recovery. After this call, traffic can start to flow from this device
7979  * again.
7980  */
7981 static void
7982 lpfc_io_resume_s3(struct pci_dev *pdev)
7983 {
7984         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7985         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7986
7987         /* Bring device online, it will be no-op for non-fatal error resume */
7988         lpfc_online(phba);
7989
7990         /* Clean up Advanced Error Reporting (AER) if needed */
7991         if (phba->hba_flag & HBA_AER_ENABLED)
7992                 pci_cleanup_aer_uncorrect_error_status(pdev);
7993 }
7994
7995 /**
7996  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7997  * @phba: pointer to lpfc hba data structure.
7998  *
7999  * returns the number of ELS/CT IOCBs to reserve
8000  **/
8001 int
8002 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8003 {
8004         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8005
8006         if (phba->sli_rev == LPFC_SLI_REV4) {
8007                 if (max_xri <= 100)
8008                         return 10;
8009                 else if (max_xri <= 256)
8010                         return 25;
8011                 else if (max_xri <= 512)
8012                         return 50;
8013                 else if (max_xri <= 1024)
8014                         return 100;
8015                 else
8016                         return 150;
8017         } else
8018                 return 0;
8019 }
8020
8021 /**
8022  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8023  * @pdev: pointer to PCI device
8024  * @pid: pointer to PCI device identifier
8025  *
8026  * This routine is called from the kernel's PCI subsystem to device with
8027  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8028  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8029  * information of the device and driver to see if the driver state that it
8030  * can support this kind of device. If the match is successful, the driver
8031  * core invokes this routine. If this routine determines it can claim the HBA,
8032  * it does all the initialization that it needs to do to handle the HBA
8033  * properly.
8034  *
8035  * Return code
8036  *      0 - driver can claim the device
8037  *      negative value - driver can not claim the device
8038  **/
8039 static int __devinit
8040 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8041 {
8042         struct lpfc_hba   *phba;
8043         struct lpfc_vport *vport = NULL;
8044         struct Scsi_Host  *shost = NULL;
8045         int error;
8046         uint32_t cfg_mode, intr_mode;
8047         int mcnt;
8048
8049         /* Allocate memory for HBA structure */
8050         phba = lpfc_hba_alloc(pdev);
8051         if (!phba)
8052                 return -ENOMEM;
8053
8054         /* Perform generic PCI device enabling operation */
8055         error = lpfc_enable_pci_dev(phba);
8056         if (error) {
8057                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8058                                 "1409 Failed to enable pci device.\n");
8059                 goto out_free_phba;
8060         }
8061
8062         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8063         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8064         if (error)
8065                 goto out_disable_pci_dev;
8066
8067         /* Set up SLI-4 specific device PCI memory space */
8068         error = lpfc_sli4_pci_mem_setup(phba);
8069         if (error) {
8070                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8071                                 "1410 Failed to set up pci memory space.\n");
8072                 goto out_disable_pci_dev;
8073         }
8074
8075         /* Set up phase-1 common device driver resources */
8076         error = lpfc_setup_driver_resource_phase1(phba);
8077         if (error) {
8078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8079                                 "1411 Failed to set up driver resource.\n");
8080                 goto out_unset_pci_mem_s4;
8081         }
8082
8083         /* Set up SLI-4 Specific device driver resources */
8084         error = lpfc_sli4_driver_resource_setup(phba);
8085         if (error) {
8086                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8087                                 "1412 Failed to set up driver resource.\n");
8088                 goto out_unset_pci_mem_s4;
8089         }
8090
8091         /* Initialize and populate the iocb list per host */
8092
8093         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8094                         "2821 initialize iocb list %d.\n",
8095                         phba->cfg_iocb_cnt*1024);
8096         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8097
8098         if (error) {
8099                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8100                                 "1413 Failed to initialize iocb list.\n");
8101                 goto out_unset_driver_resource_s4;
8102         }
8103
8104         /* Set up common device driver resources */
8105         error = lpfc_setup_driver_resource_phase2(phba);
8106         if (error) {
8107                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8108                                 "1414 Failed to set up driver resource.\n");
8109                 goto out_free_iocb_list;
8110         }
8111
8112         /* Create SCSI host to the physical port */
8113         error = lpfc_create_shost(phba);
8114         if (error) {
8115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8116                                 "1415 Failed to create scsi host.\n");
8117                 goto out_unset_driver_resource;
8118         }
8119
8120         /* Configure sysfs attributes */
8121         vport = phba->pport;
8122         error = lpfc_alloc_sysfs_attr(vport);
8123         if (error) {
8124                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8125                                 "1416 Failed to allocate sysfs attr\n");
8126                 goto out_destroy_shost;
8127         }
8128
8129         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8130         /* Now, trying to enable interrupt and bring up the device */
8131         cfg_mode = phba->cfg_use_msi;
8132         while (true) {
8133                 /* Put device to a known state before enabling interrupt */
8134                 lpfc_stop_port(phba);
8135                 /* Configure and enable interrupt */
8136                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8137                 if (intr_mode == LPFC_INTR_ERROR) {
8138                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8139                                         "0426 Failed to enable interrupt.\n");
8140                         error = -ENODEV;
8141                         goto out_free_sysfs_attr;
8142                 }
8143                 /* Default to single FCP EQ for non-MSI-X */
8144                 if (phba->intr_type != MSIX)
8145                         phba->cfg_fcp_eq_count = 1;
8146                 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8147                         phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8148                 /* Set up SLI-4 HBA */
8149                 if (lpfc_sli4_hba_setup(phba)) {
8150                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8151                                         "1421 Failed to set up hba\n");
8152                         error = -ENODEV;
8153                         goto out_disable_intr;
8154                 }
8155
8156                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8157                 if (intr_mode != 0)
8158                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8159                                                             LPFC_ACT_INTR_CNT);
8160
8161                 /* Check active interrupts received only for MSI/MSI-X */
8162                 if (intr_mode == 0 ||
8163                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8164                         /* Log the current active interrupt mode */
8165                         phba->intr_mode = intr_mode;
8166                         lpfc_log_intr_mode(phba, intr_mode);
8167                         break;
8168                 }
8169                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8170                                 "0451 Configure interrupt mode (%d) "
8171                                 "failed active interrupt test.\n",
8172                                 intr_mode);
8173                 /* Unset the preivous SLI-4 HBA setup */
8174                 lpfc_sli4_unset_hba(phba);
8175                 /* Try next level of interrupt mode */
8176                 cfg_mode = --intr_mode;
8177         }
8178
8179         /* Perform post initialization setup */
8180         lpfc_post_init_setup(phba);
8181
8182         /* Check if there are static vports to be created. */
8183         lpfc_create_static_vport(phba);
8184
8185         return 0;
8186
8187 out_disable_intr:
8188         lpfc_sli4_disable_intr(phba);
8189 out_free_sysfs_attr:
8190         lpfc_free_sysfs_attr(vport);
8191 out_destroy_shost:
8192         lpfc_destroy_shost(phba);
8193 out_unset_driver_resource:
8194         lpfc_unset_driver_resource_phase2(phba);
8195 out_free_iocb_list:
8196         lpfc_free_iocb_list(phba);
8197 out_unset_driver_resource_s4:
8198         lpfc_sli4_driver_resource_unset(phba);
8199 out_unset_pci_mem_s4:
8200         lpfc_sli4_pci_mem_unset(phba);
8201 out_disable_pci_dev:
8202         lpfc_disable_pci_dev(phba);
8203         if (shost)
8204                 scsi_host_put(shost);
8205 out_free_phba:
8206         lpfc_hba_free(phba);
8207         return error;
8208 }
8209
8210 /**
8211  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8212  * @pdev: pointer to PCI device
8213  *
8214  * This routine is called from the kernel's PCI subsystem to device with
8215  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8216  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8217  * device to be removed from the PCI subsystem properly.
8218  **/
8219 static void __devexit
8220 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8221 {
8222         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8223         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8224         struct lpfc_vport **vports;
8225         struct lpfc_hba *phba = vport->phba;
8226         int i;
8227
8228         /* Mark the device unloading flag */
8229         spin_lock_irq(&phba->hbalock);
8230         vport->load_flag |= FC_UNLOADING;
8231         spin_unlock_irq(&phba->hbalock);
8232
8233         /* Free the HBA sysfs attributes */
8234         lpfc_free_sysfs_attr(vport);
8235
8236         /* Release all the vports against this physical port */
8237         vports = lpfc_create_vport_work_array(phba);
8238         if (vports != NULL)
8239                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8240                         fc_vport_terminate(vports[i]->fc_vport);
8241         lpfc_destroy_vport_work_array(phba, vports);
8242
8243         /* Remove FC host and then SCSI host with the physical port */
8244         fc_remove_host(shost);
8245         scsi_remove_host(shost);
8246
8247         /* Perform cleanup on the physical port */
8248         lpfc_cleanup(vport);
8249
8250         /*
8251          * Bring down the SLI Layer. This step disables all interrupts,
8252          * clears the rings, discards all mailbox commands, and resets
8253          * the HBA FCoE function.
8254          */
8255         lpfc_debugfs_terminate(vport);
8256         lpfc_sli4_hba_unset(phba);
8257
8258         spin_lock_irq(&phba->hbalock);
8259         list_del_init(&vport->listentry);
8260         spin_unlock_irq(&phba->hbalock);
8261
8262         /* Perform scsi free before driver resource_unset since scsi
8263          * buffers are released to their corresponding pools here.
8264          */
8265         lpfc_scsi_free(phba);
8266         lpfc_sli4_driver_resource_unset(phba);
8267
8268         /* Unmap adapter Control and Doorbell registers */
8269         lpfc_sli4_pci_mem_unset(phba);
8270
8271         /* Release PCI resources and disable device's PCI function */
8272         scsi_host_put(shost);
8273         lpfc_disable_pci_dev(phba);
8274
8275         /* Finally, free the driver's device data structure */
8276         lpfc_hba_free(phba);
8277
8278         return;
8279 }
8280
8281 /**
8282  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8283  * @pdev: pointer to PCI device
8284  * @msg: power management message
8285  *
8286  * This routine is called from the kernel's PCI subsystem to support system
8287  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8288  * this method, it quiesces the device by stopping the driver's worker
8289  * thread for the device, turning off device's interrupt and DMA, and bring
8290  * the device offline. Note that as the driver implements the minimum PM
8291  * requirements to a power-aware driver's PM support for suspend/resume -- all
8292  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8293  * method call will be treated as SUSPEND and the driver will fully
8294  * reinitialize its device during resume() method call, the driver will set
8295  * device to PCI_D3hot state in PCI config space instead of setting it
8296  * according to the @msg provided by the PM.
8297  *
8298  * Return code
8299  *      0 - driver suspended the device
8300  *      Error otherwise
8301  **/
8302 static int
8303 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8304 {
8305         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8306         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8307
8308         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8309                         "2843 PCI device Power Management suspend.\n");
8310
8311         /* Bring down the device */
8312         lpfc_offline_prep(phba);
8313         lpfc_offline(phba);
8314         kthread_stop(phba->worker_thread);
8315
8316         /* Disable interrupt from device */
8317         lpfc_sli4_disable_intr(phba);
8318
8319         /* Save device state to PCI config space */
8320         pci_save_state(pdev);
8321         pci_set_power_state(pdev, PCI_D3hot);
8322
8323         return 0;
8324 }
8325
8326 /**
8327  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8328  * @pdev: pointer to PCI device
8329  *
8330  * This routine is called from the kernel's PCI subsystem to support system
8331  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8332  * this method, it restores the device's PCI config space state and fully
8333  * reinitializes the device and brings it online. Note that as the driver
8334  * implements the minimum PM requirements to a power-aware driver's PM for
8335  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8336  * to the suspend() method call will be treated as SUSPEND and the driver
8337  * will fully reinitialize its device during resume() method call, the device
8338  * will be set to PCI_D0 directly in PCI config space before restoring the
8339  * state.
8340  *
8341  * Return code
8342  *      0 - driver suspended the device
8343  *      Error otherwise
8344  **/
8345 static int
8346 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8347 {
8348         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8349         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8350         uint32_t intr_mode;
8351         int error;
8352
8353         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8354                         "0292 PCI device Power Management resume.\n");
8355
8356         /* Restore device state from PCI config space */
8357         pci_set_power_state(pdev, PCI_D0);
8358         pci_restore_state(pdev);
8359
8360         /*
8361          * As the new kernel behavior of pci_restore_state() API call clears
8362          * device saved_state flag, need to save the restored state again.
8363          */
8364         pci_save_state(pdev);
8365
8366         if (pdev->is_busmaster)
8367                 pci_set_master(pdev);
8368
8369          /* Startup the kernel thread for this host adapter. */
8370         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8371                                         "lpfc_worker_%d", phba->brd_no);
8372         if (IS_ERR(phba->worker_thread)) {
8373                 error = PTR_ERR(phba->worker_thread);
8374                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8375                                 "0293 PM resume failed to start worker "
8376                                 "thread: error=x%x.\n", error);
8377                 return error;
8378         }
8379
8380         /* Configure and enable interrupt */
8381         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8382         if (intr_mode == LPFC_INTR_ERROR) {
8383                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8384                                 "0294 PM resume Failed to enable interrupt\n");
8385                 return -EIO;
8386         } else
8387                 phba->intr_mode = intr_mode;
8388
8389         /* Restart HBA and bring it online */
8390         lpfc_sli_brdrestart(phba);
8391         lpfc_online(phba);
8392
8393         /* Log the current active interrupt mode */
8394         lpfc_log_intr_mode(phba, phba->intr_mode);
8395
8396         return 0;
8397 }
8398
8399 /**
8400  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8401  * @phba: pointer to lpfc hba data structure.
8402  *
8403  * This routine is called to prepare the SLI4 device for PCI slot recover. It
8404  * aborts all the outstanding SCSI I/Os to the pci device.
8405  **/
8406 static void
8407 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8408 {
8409         struct lpfc_sli *psli = &phba->sli;
8410         struct lpfc_sli_ring  *pring;
8411
8412         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8413                         "2828 PCI channel I/O abort preparing for recovery\n");
8414         /*
8415          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8416          * and let the SCSI mid-layer to retry them to recover.
8417          */
8418         pring = &psli->ring[psli->fcp_ring];
8419         lpfc_sli_abort_iocb_ring(phba, pring);
8420 }
8421
8422 /**
8423  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8424  * @phba: pointer to lpfc hba data structure.
8425  *
8426  * This routine is called to prepare the SLI4 device for PCI slot reset. It
8427  * disables the device interrupt and pci device, and aborts the internal FCP
8428  * pending I/Os.
8429  **/
8430 static void
8431 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8432 {
8433         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8434                         "2826 PCI channel disable preparing for reset\n");
8435
8436         /* Block any management I/Os to the device */
8437         lpfc_block_mgmt_io(phba);
8438
8439         /* Block all SCSI devices' I/Os on the host */
8440         lpfc_scsi_dev_block(phba);
8441
8442         /* stop all timers */
8443         lpfc_stop_hba_timers(phba);
8444
8445         /* Disable interrupt and pci device */
8446         lpfc_sli4_disable_intr(phba);
8447         pci_disable_device(phba->pcidev);
8448
8449         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8450         lpfc_sli_flush_fcp_rings(phba);
8451 }
8452
8453 /**
8454  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8455  * @phba: pointer to lpfc hba data structure.
8456  *
8457  * This routine is called to prepare the SLI4 device for PCI slot permanently
8458  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8459  * pending I/Os.
8460  **/
8461 static void
8462 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8463 {
8464         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8465                         "2827 PCI channel permanent disable for failure\n");
8466
8467         /* Block all SCSI devices' I/Os on the host */
8468         lpfc_scsi_dev_block(phba);
8469
8470         /* stop all timers */
8471         lpfc_stop_hba_timers(phba);
8472
8473         /* Clean up all driver's outstanding SCSI I/Os */
8474         lpfc_sli_flush_fcp_rings(phba);
8475 }
8476
8477 /**
8478  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8479  * @pdev: pointer to PCI device.
8480  * @state: the current PCI connection state.
8481  *
8482  * This routine is called from the PCI subsystem for error handling to device
8483  * with SLI-4 interface spec. This function is called by the PCI subsystem
8484  * after a PCI bus error affecting this device has been detected. When this
8485  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8486  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8487  * for the PCI subsystem to perform proper recovery as desired.
8488  *
8489  * Return codes
8490  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8491  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8492  **/
8493 static pci_ers_result_t
8494 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8495 {
8496         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8497         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8498
8499         switch (state) {
8500         case pci_channel_io_normal:
8501                 /* Non-fatal error, prepare for recovery */
8502                 lpfc_sli4_prep_dev_for_recover(phba);
8503                 return PCI_ERS_RESULT_CAN_RECOVER;
8504         case pci_channel_io_frozen:
8505                 /* Fatal error, prepare for slot reset */
8506                 lpfc_sli4_prep_dev_for_reset(phba);
8507                 return PCI_ERS_RESULT_NEED_RESET;
8508         case pci_channel_io_perm_failure:
8509                 /* Permanent failure, prepare for device down */
8510                 lpfc_sli4_prep_dev_for_perm_failure(phba);
8511                 return PCI_ERS_RESULT_DISCONNECT;
8512         default:
8513                 /* Unknown state, prepare and request slot reset */
8514                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8515                                 "2825 Unknown PCI error state: x%x\n", state);
8516                 lpfc_sli4_prep_dev_for_reset(phba);
8517                 return PCI_ERS_RESULT_NEED_RESET;
8518         }
8519 }
8520
8521 /**
8522  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8523  * @pdev: pointer to PCI device.
8524  *
8525  * This routine is called from the PCI subsystem for error handling to device
8526  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8527  * restart the PCI card from scratch, as if from a cold-boot. During the
8528  * PCI subsystem error recovery, after the driver returns
8529  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8530  * recovery and then call this routine before calling the .resume method to
8531  * recover the device. This function will initialize the HBA device, enable
8532  * the interrupt, but it will just put the HBA to offline state without
8533  * passing any I/O traffic.
8534  *
8535  * Return codes
8536  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8537  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8538  */
8539 static pci_ers_result_t
8540 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8541 {
8542         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8543         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8544         struct lpfc_sli *psli = &phba->sli;
8545         uint32_t intr_mode;
8546
8547         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8548         if (pci_enable_device_mem(pdev)) {
8549                 printk(KERN_ERR "lpfc: Cannot re-enable "
8550                         "PCI device after reset.\n");
8551                 return PCI_ERS_RESULT_DISCONNECT;
8552         }
8553
8554         pci_restore_state(pdev);
8555         if (pdev->is_busmaster)
8556                 pci_set_master(pdev);
8557
8558         spin_lock_irq(&phba->hbalock);
8559         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8560         spin_unlock_irq(&phba->hbalock);
8561
8562         /* Configure and enable interrupt */
8563         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8564         if (intr_mode == LPFC_INTR_ERROR) {
8565                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8566                                 "2824 Cannot re-enable interrupt after "
8567                                 "slot reset.\n");
8568                 return PCI_ERS_RESULT_DISCONNECT;
8569         } else
8570                 phba->intr_mode = intr_mode;
8571
8572         /* Log the current active interrupt mode */
8573         lpfc_log_intr_mode(phba, phba->intr_mode);
8574
8575         return PCI_ERS_RESULT_RECOVERED;
8576 }
8577
8578 /**
8579  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8580  * @pdev: pointer to PCI device
8581  *
8582  * This routine is called from the PCI subsystem for error handling to device
8583  * with SLI-4 interface spec. It is called when kernel error recovery tells
8584  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8585  * error recovery. After this call, traffic can start to flow from this device
8586  * again.
8587  **/
8588 static void
8589 lpfc_io_resume_s4(struct pci_dev *pdev)
8590 {
8591         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8592         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8593
8594         /*
8595          * In case of slot reset, as function reset is performed through
8596          * mailbox command which needs DMA to be enabled, this operation
8597          * has to be moved to the io resume phase. Taking device offline
8598          * will perform the necessary cleanup.
8599          */
8600         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
8601                 /* Perform device reset */
8602                 lpfc_offline_prep(phba);
8603                 lpfc_offline(phba);
8604                 lpfc_sli_brdrestart(phba);
8605                 /* Bring the device back online */
8606                 lpfc_online(phba);
8607         }
8608
8609         /* Clean up Advanced Error Reporting (AER) if needed */
8610         if (phba->hba_flag & HBA_AER_ENABLED)
8611                 pci_cleanup_aer_uncorrect_error_status(pdev);
8612 }
8613
8614 /**
8615  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8616  * @pdev: pointer to PCI device
8617  * @pid: pointer to PCI device identifier
8618  *
8619  * This routine is to be registered to the kernel's PCI subsystem. When an
8620  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8621  * at PCI device-specific information of the device and driver to see if the
8622  * driver state that it can support this kind of device. If the match is
8623  * successful, the driver core invokes this routine. This routine dispatches
8624  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8625  * do all the initialization that it needs to do to handle the HBA device
8626  * properly.
8627  *
8628  * Return code
8629  *      0 - driver can claim the device
8630  *      negative value - driver can not claim the device
8631  **/
8632 static int __devinit
8633 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8634 {
8635         int rc;
8636         struct lpfc_sli_intf intf;
8637
8638         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8639                 return -ENODEV;
8640
8641         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8642             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8643                 rc = lpfc_pci_probe_one_s4(pdev, pid);
8644         else
8645                 rc = lpfc_pci_probe_one_s3(pdev, pid);
8646
8647         return rc;
8648 }
8649
8650 /**
8651  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8652  * @pdev: pointer to PCI device
8653  *
8654  * This routine is to be registered to the kernel's PCI subsystem. When an
8655  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8656  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8657  * remove routine, which will perform all the necessary cleanup for the
8658  * device to be removed from the PCI subsystem properly.
8659  **/
8660 static void __devexit
8661 lpfc_pci_remove_one(struct pci_dev *pdev)
8662 {
8663         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8664         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8665
8666         switch (phba->pci_dev_grp) {
8667         case LPFC_PCI_DEV_LP:
8668                 lpfc_pci_remove_one_s3(pdev);
8669                 break;
8670         case LPFC_PCI_DEV_OC:
8671                 lpfc_pci_remove_one_s4(pdev);
8672                 break;
8673         default:
8674                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8675                                 "1424 Invalid PCI device group: 0x%x\n",
8676                                 phba->pci_dev_grp);
8677                 break;
8678         }
8679         return;
8680 }
8681
8682 /**
8683  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8684  * @pdev: pointer to PCI device
8685  * @msg: power management message
8686  *
8687  * This routine is to be registered to the kernel's PCI subsystem to support
8688  * system Power Management (PM). When PM invokes this method, it dispatches
8689  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8690  * suspend the device.
8691  *
8692  * Return code
8693  *      0 - driver suspended the device
8694  *      Error otherwise
8695  **/
8696 static int
8697 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8698 {
8699         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8700         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8701         int rc = -ENODEV;
8702
8703         switch (phba->pci_dev_grp) {
8704         case LPFC_PCI_DEV_LP:
8705                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8706                 break;
8707         case LPFC_PCI_DEV_OC:
8708                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8709                 break;
8710         default:
8711                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8712                                 "1425 Invalid PCI device group: 0x%x\n",
8713                                 phba->pci_dev_grp);
8714                 break;
8715         }
8716         return rc;
8717 }
8718
8719 /**
8720  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8721  * @pdev: pointer to PCI device
8722  *
8723  * This routine is to be registered to the kernel's PCI subsystem to support
8724  * system Power Management (PM). When PM invokes this method, it dispatches
8725  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8726  * resume the device.
8727  *
8728  * Return code
8729  *      0 - driver suspended the device
8730  *      Error otherwise
8731  **/
8732 static int
8733 lpfc_pci_resume_one(struct pci_dev *pdev)
8734 {
8735         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8736         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8737         int rc = -ENODEV;
8738
8739         switch (phba->pci_dev_grp) {
8740         case LPFC_PCI_DEV_LP:
8741                 rc = lpfc_pci_resume_one_s3(pdev);
8742                 break;
8743         case LPFC_PCI_DEV_OC:
8744                 rc = lpfc_pci_resume_one_s4(pdev);
8745                 break;
8746         default:
8747                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8748                                 "1426 Invalid PCI device group: 0x%x\n",
8749                                 phba->pci_dev_grp);
8750                 break;
8751         }
8752         return rc;
8753 }
8754
8755 /**
8756  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8757  * @pdev: pointer to PCI device.
8758  * @state: the current PCI connection state.
8759  *
8760  * This routine is registered to the PCI subsystem for error handling. This
8761  * function is called by the PCI subsystem after a PCI bus error affecting
8762  * this device has been detected. When this routine is invoked, it dispatches
8763  * the action to the proper SLI-3 or SLI-4 device error detected handling
8764  * routine, which will perform the proper error detected operation.
8765  *
8766  * Return codes
8767  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8768  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8769  **/
8770 static pci_ers_result_t
8771 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8772 {
8773         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8774         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8775         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8776
8777         switch (phba->pci_dev_grp) {
8778         case LPFC_PCI_DEV_LP:
8779                 rc = lpfc_io_error_detected_s3(pdev, state);
8780                 break;
8781         case LPFC_PCI_DEV_OC:
8782                 rc = lpfc_io_error_detected_s4(pdev, state);
8783                 break;
8784         default:
8785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8786                                 "1427 Invalid PCI device group: 0x%x\n",
8787                                 phba->pci_dev_grp);
8788                 break;
8789         }
8790         return rc;
8791 }
8792
8793 /**
8794  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8795  * @pdev: pointer to PCI device.
8796  *
8797  * This routine is registered to the PCI subsystem for error handling. This
8798  * function is called after PCI bus has been reset to restart the PCI card
8799  * from scratch, as if from a cold-boot. When this routine is invoked, it
8800  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8801  * routine, which will perform the proper device reset.
8802  *
8803  * Return codes
8804  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8805  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8806  **/
8807 static pci_ers_result_t
8808 lpfc_io_slot_reset(struct pci_dev *pdev)
8809 {
8810         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8811         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8812         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8813
8814         switch (phba->pci_dev_grp) {
8815         case LPFC_PCI_DEV_LP:
8816                 rc = lpfc_io_slot_reset_s3(pdev);
8817                 break;
8818         case LPFC_PCI_DEV_OC:
8819                 rc = lpfc_io_slot_reset_s4(pdev);
8820                 break;
8821         default:
8822                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8823                                 "1428 Invalid PCI device group: 0x%x\n",
8824                                 phba->pci_dev_grp);
8825                 break;
8826         }
8827         return rc;
8828 }
8829
8830 /**
8831  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8832  * @pdev: pointer to PCI device
8833  *
8834  * This routine is registered to the PCI subsystem for error handling. It
8835  * is called when kernel error recovery tells the lpfc driver that it is
8836  * OK to resume normal PCI operation after PCI bus error recovery. When
8837  * this routine is invoked, it dispatches the action to the proper SLI-3
8838  * or SLI-4 device io_resume routine, which will resume the device operation.
8839  **/
8840 static void
8841 lpfc_io_resume(struct pci_dev *pdev)
8842 {
8843         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8844         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8845
8846         switch (phba->pci_dev_grp) {
8847         case LPFC_PCI_DEV_LP:
8848                 lpfc_io_resume_s3(pdev);
8849                 break;
8850         case LPFC_PCI_DEV_OC:
8851                 lpfc_io_resume_s4(pdev);
8852                 break;
8853         default:
8854                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8855                                 "1429 Invalid PCI device group: 0x%x\n",
8856                                 phba->pci_dev_grp);
8857                 break;
8858         }
8859         return;
8860 }
8861
8862 static struct pci_device_id lpfc_id_table[] = {
8863         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8864                 PCI_ANY_ID, PCI_ANY_ID, },
8865         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8866                 PCI_ANY_ID, PCI_ANY_ID, },
8867         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8868                 PCI_ANY_ID, PCI_ANY_ID, },
8869         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8870                 PCI_ANY_ID, PCI_ANY_ID, },
8871         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8872                 PCI_ANY_ID, PCI_ANY_ID, },
8873         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8874                 PCI_ANY_ID, PCI_ANY_ID, },
8875         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8876                 PCI_ANY_ID, PCI_ANY_ID, },
8877         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8878                 PCI_ANY_ID, PCI_ANY_ID, },
8879         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8880                 PCI_ANY_ID, PCI_ANY_ID, },
8881         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8882                 PCI_ANY_ID, PCI_ANY_ID, },
8883         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8884                 PCI_ANY_ID, PCI_ANY_ID, },
8885         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8886                 PCI_ANY_ID, PCI_ANY_ID, },
8887         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8888                 PCI_ANY_ID, PCI_ANY_ID, },
8889         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8890                 PCI_ANY_ID, PCI_ANY_ID, },
8891         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8892                 PCI_ANY_ID, PCI_ANY_ID, },
8893         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8894                 PCI_ANY_ID, PCI_ANY_ID, },
8895         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8896                 PCI_ANY_ID, PCI_ANY_ID, },
8897         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8898                 PCI_ANY_ID, PCI_ANY_ID, },
8899         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8900                 PCI_ANY_ID, PCI_ANY_ID, },
8901         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8902                 PCI_ANY_ID, PCI_ANY_ID, },
8903         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8904                 PCI_ANY_ID, PCI_ANY_ID, },
8905         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8906                 PCI_ANY_ID, PCI_ANY_ID, },
8907         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8908                 PCI_ANY_ID, PCI_ANY_ID, },
8909         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8910                 PCI_ANY_ID, PCI_ANY_ID, },
8911         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8912                 PCI_ANY_ID, PCI_ANY_ID, },
8913         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8914                 PCI_ANY_ID, PCI_ANY_ID, },
8915         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8916                 PCI_ANY_ID, PCI_ANY_ID, },
8917         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8918                 PCI_ANY_ID, PCI_ANY_ID, },
8919         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8920                 PCI_ANY_ID, PCI_ANY_ID, },
8921         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8922                 PCI_ANY_ID, PCI_ANY_ID, },
8923         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8924                 PCI_ANY_ID, PCI_ANY_ID, },
8925         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8926                 PCI_ANY_ID, PCI_ANY_ID, },
8927         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8928                 PCI_ANY_ID, PCI_ANY_ID, },
8929         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8930                 PCI_ANY_ID, PCI_ANY_ID, },
8931         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8932                 PCI_ANY_ID, PCI_ANY_ID, },
8933         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8934                 PCI_ANY_ID, PCI_ANY_ID, },
8935         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8936                 PCI_ANY_ID, PCI_ANY_ID, },
8937         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8938                 PCI_ANY_ID, PCI_ANY_ID, },
8939         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8940                 PCI_ANY_ID, PCI_ANY_ID, },
8941         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8942                 PCI_ANY_ID, PCI_ANY_ID, },
8943         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
8944                 PCI_ANY_ID, PCI_ANY_ID, },
8945         { 0 }
8946 };
8947
8948 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8949
8950 static struct pci_error_handlers lpfc_err_handler = {
8951         .error_detected = lpfc_io_error_detected,
8952         .slot_reset = lpfc_io_slot_reset,
8953         .resume = lpfc_io_resume,
8954 };
8955
8956 static struct pci_driver lpfc_driver = {
8957         .name           = LPFC_DRIVER_NAME,
8958         .id_table       = lpfc_id_table,
8959         .probe          = lpfc_pci_probe_one,
8960         .remove         = __devexit_p(lpfc_pci_remove_one),
8961         .suspend        = lpfc_pci_suspend_one,
8962         .resume         = lpfc_pci_resume_one,
8963         .err_handler    = &lpfc_err_handler,
8964 };
8965
8966 /**
8967  * lpfc_init - lpfc module initialization routine
8968  *
8969  * This routine is to be invoked when the lpfc module is loaded into the
8970  * kernel. The special kernel macro module_init() is used to indicate the
8971  * role of this routine to the kernel as lpfc module entry point.
8972  *
8973  * Return codes
8974  *   0 - successful
8975  *   -ENOMEM - FC attach transport failed
8976  *   all others - failed
8977  */
8978 static int __init
8979 lpfc_init(void)
8980 {
8981         int error = 0;
8982
8983         printk(LPFC_MODULE_DESC "\n");
8984         printk(LPFC_COPYRIGHT "\n");
8985
8986         if (lpfc_enable_npiv) {
8987                 lpfc_transport_functions.vport_create = lpfc_vport_create;
8988                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8989         }
8990         lpfc_transport_template =
8991                                 fc_attach_transport(&lpfc_transport_functions);
8992         if (lpfc_transport_template == NULL)
8993                 return -ENOMEM;
8994         if (lpfc_enable_npiv) {
8995                 lpfc_vport_transport_template =
8996                         fc_attach_transport(&lpfc_vport_transport_functions);
8997                 if (lpfc_vport_transport_template == NULL) {
8998                         fc_release_transport(lpfc_transport_template);
8999                         return -ENOMEM;
9000                 }
9001         }
9002         error = pci_register_driver(&lpfc_driver);
9003         if (error) {
9004                 fc_release_transport(lpfc_transport_template);
9005                 if (lpfc_enable_npiv)
9006                         fc_release_transport(lpfc_vport_transport_template);
9007         }
9008
9009         return error;
9010 }
9011
9012 /**
9013  * lpfc_exit - lpfc module removal routine
9014  *
9015  * This routine is invoked when the lpfc module is removed from the kernel.
9016  * The special kernel macro module_exit() is used to indicate the role of
9017  * this routine to the kernel as lpfc module exit point.
9018  */
9019 static void __exit
9020 lpfc_exit(void)
9021 {
9022         pci_unregister_driver(&lpfc_driver);
9023         fc_release_transport(lpfc_transport_template);
9024         if (lpfc_enable_npiv)
9025                 fc_release_transport(lpfc_vport_transport_template);
9026         if (_dump_buf_data) {
9027                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9028                                 "_dump_buf_data at 0x%p\n",
9029                                 (1L << _dump_buf_data_order), _dump_buf_data);
9030                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9031         }
9032
9033         if (_dump_buf_dif) {
9034                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9035                                 "_dump_buf_dif at 0x%p\n",
9036                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9037                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9038         }
9039 }
9040
9041 module_init(lpfc_init);
9042 module_exit(lpfc_exit);
9043 MODULE_LICENSE("GPL");
9044 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9045 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9046 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);