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 /**
 818  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 819  * @phba: pointer to lpfc HBA data structure.
 820  *
 821  * This routine will do uninitialization after the HBA is reset when bring
 822  * down the SLI Layer.
 823  *
 824  * Return codes
 825  *   0 - success.
 826  *   Any other value - error.
 827  **/
 828 static int
 829 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 830 {
 831         struct lpfc_scsi_buf *psb, *psb_next;
 832         LIST_HEAD(aborts);
 833         int ret;
 834         unsigned long iflag = 0;
 835         struct lpfc_sglq *sglq_entry = NULL;
 836
 837         ret = lpfc_hba_down_post_s3(phba);
 838         if (ret)
 839                 return ret;
 840         /* At this point in time the HBA is either reset or DOA. Either
 841          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 842          * on the lpfc_sgl_list so that it can either be freed if the
 843          * driver is unloading or reposted if the driver is restarting
 844          * the port.
 845          */
 846         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 847                                         /* scsl_buf_list */
 848         /* abts_sgl_list_lock required because worker thread uses this
 849          * list.
 850          */
 851         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 852         list_for_each_entry(sglq_entry,
 853                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 854                 sglq_entry->state = SGL_FREED;
 855
 856         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 857                         &phba->sli4_hba.lpfc_sgl_list);
 858         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 859         /* abts_scsi_buf_list_lock required because worker thread uses this
 860          * list.
 861          */
 862         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 863         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 864                         &aborts);
 865         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 866         spin_unlock_irq(&phba->hbalock);
 867
 868         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 869                 psb->pCmd = NULL;
 870                 psb->status = IOSTAT_SUCCESS;
 871         }
 872         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 873         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 874         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 875         return 0;
 876 }
 877
 878 /**
 879  * lpfc_hba_down_post - Wrapper func for hba down post routine
 880  * @phba: pointer to lpfc HBA data structure.
 881  *
 882  * This routine wraps the actual SLI3 or SLI4 routine for performing
 883  * uninitialization after the HBA is reset when bring down the SLI Layer.
 884  *
 885  * Return codes
 886  *   0 - success.
 887  *   Any other value - error.
 888  **/
 889 int
 890 lpfc_hba_down_post(struct lpfc_hba *phba)
 891 {
 892         return (*phba->lpfc_hba_down_post)(phba);
 893 }
 894
 895 /**
 896  * lpfc_hb_timeout - The HBA-timer timeout handler
 897  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 898  *
 899  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 900  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 901  * work-port-events bitmap and the worker thread is notified. This timeout
 902  * event will be used by the worker thread to invoke the actual timeout
 903  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 904  * be performed in the timeout handler and the HBA timeout event bit shall
 905  * be cleared by the worker thread after it has taken the event bitmap out.
 906  **/
 907 static void
 908 lpfc_hb_timeout(unsigned long ptr)
 909 {
 910         struct lpfc_hba *phba;
 911         uint32_t tmo_posted;
 912         unsigned long iflag;
 913
 914         phba = (struct lpfc_hba *)ptr;
 915
 916         /* Check for heart beat timeout conditions */
 917         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 918         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 919         if (!tmo_posted)
 920                 phba->pport->work_port_events |= WORKER_HB_TMO;
 921         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 922
 923         /* Tell the worker thread there is work to do */
 924         if (!tmo_posted)
 925                 lpfc_worker_wake_up(phba);
 926         return;
 927 }
 928
 929 /**
 930  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 931  * @phba: pointer to lpfc hba data structure.
 932  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 933  *
 934  * This is the callback function to the lpfc heart-beat mailbox command.
 935  * If configured, the lpfc driver issues the heart-beat mailbox command to
 936  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 937  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 938  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 939  * heart-beat outstanding state. Once the mailbox command comes back and
 940  * no error conditions detected, the heart-beat mailbox command timer is
 941  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 942  * state is cleared for the next heart-beat. If the timer expired with the
 943  * heart-beat outstanding state set, the driver will put the HBA offline.
 944  **/
 945 static void
 946 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 947 {
 948         unsigned long drvr_flag;
 949
 950         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 951         phba->hb_outstanding = 0;
 952         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 953
 954         /* Check and reset heart-beat timer is necessary */
 955         mempool_free(pmboxq, phba->mbox_mem_pool);
 956         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 957                 !(phba->link_state == LPFC_HBA_ERROR) &&
 958                 !(phba->pport->load_flag & FC_UNLOADING))
 959                 mod_timer(&phba->hb_tmofunc,
 960                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 961         return;
 962 }
 963
 964 /**
 965  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 966  * @phba: pointer to lpfc hba data structure.
 967  *
 968  * This is the actual HBA-timer timeout handler to be invoked by the worker
 969  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 970  * handler performs any periodic operations needed for the device. If such
 971  * periodic event has already been attended to either in the interrupt handler
 972  * or by processing slow-ring or fast-ring events within the HBA-timer
 973  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 974  * the timer for the next timeout period. If lpfc heart-beat mailbox command
 975  * is configured and there is no heart-beat mailbox command outstanding, a
 976  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 977  * has been a heart-beat mailbox command outstanding, the HBA shall be put
 978  * to offline.
 979  **/
 980 void
 981 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 982 {
 983         struct lpfc_vport **vports;
 984         LPFC_MBOXQ_t *pmboxq;
 985         struct lpfc_dmabuf *buf_ptr;
 986         int retval, i;
 987         struct lpfc_sli *psli = &phba->sli;
 988         LIST_HEAD(completions);
 989
 990         vports = lpfc_create_vport_work_array(phba);
 991         if (vports != NULL)
 992                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
 993                         lpfc_rcv_seq_check_edtov(vports[i]);
 994         lpfc_destroy_vport_work_array(phba, vports);
 995
 996         if ((phba->link_state == LPFC_HBA_ERROR) ||
 997                 (phba->pport->load_flag & FC_UNLOADING) ||
 998                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
 999                 return;
1000
1001         spin_lock_irq(&phba->pport->work_port_lock);
1002
1003         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
1004                 jiffies)) {
1005                 spin_unlock_irq(&phba->pport->work_port_lock);
1006                 if (!phba->hb_outstanding)
1007                         mod_timer(&phba->hb_tmofunc,
1008                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1009                 else
1010                         mod_timer(&phba->hb_tmofunc,
1011                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1012                 return;
1013         }
1014         spin_unlock_irq(&phba->pport->work_port_lock);
1015
1016         if (phba->elsbuf_cnt &&
1017                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1018                 spin_lock_irq(&phba->hbalock);
1019                 list_splice_init(&phba->elsbuf, &completions);
1020                 phba->elsbuf_cnt = 0;
1021                 phba->elsbuf_prev_cnt = 0;
1022                 spin_unlock_irq(&phba->hbalock);
1023
1024                 while (!list_empty(&completions)) {
1025                         list_remove_head(&completions, buf_ptr,
1026                                 struct lpfc_dmabuf, list);
1027                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1028                         kfree(buf_ptr);
1029                 }
1030         }
1031         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1032
1033         /* If there is no heart beat outstanding, issue a heartbeat command */
1034         if (phba->cfg_enable_hba_heartbeat) {
1035                 if (!phba->hb_outstanding) {
1036                         if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) &&
1037                                 (list_empty(&psli->mboxq))) {
1038                                 pmboxq = mempool_alloc(phba->mbox_mem_pool,
1039                                                         GFP_KERNEL);
1040                                 if (!pmboxq) {
1041                                         mod_timer(&phba->hb_tmofunc,
1042                                                  jiffies +
1043                                                  HZ * LPFC_HB_MBOX_INTERVAL);
1044                                         return;
1045                                 }
1046
1047                                 lpfc_heart_beat(phba, pmboxq);
1048                                 pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1049                                 pmboxq->vport = phba->pport;
1050                                 retval = lpfc_sli_issue_mbox(phba, pmboxq,
1051                                                 MBX_NOWAIT);
1052
1053                                 if (retval != MBX_BUSY &&
1054                                         retval != MBX_SUCCESS) {
1055                                         mempool_free(pmboxq,
1056                                                         phba->mbox_mem_pool);
1057                                         mod_timer(&phba->hb_tmofunc,
1058                                                 jiffies +
1059                                                 HZ * LPFC_HB_MBOX_INTERVAL);
1060                                         return;
1061                                 }
1062                                 phba->skipped_hb = 0;
1063                                 phba->hb_outstanding = 1;
1064                         } else if (time_before_eq(phba->last_completion_time,
1065                                         phba->skipped_hb)) {
1066                                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1067                                         "2857 Last completion time not "
1068                                         " updated in %d ms\n",
1069                                         jiffies_to_msecs(jiffies
1070                                                  - phba->last_completion_time));
1071                         } else
1072                                 phba->skipped_hb = jiffies;
1073
1074                         mod_timer(&phba->hb_tmofunc,
1075                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1076                         return;
1077                 } else {
1078                         /*
1079                         * If heart beat timeout called with hb_outstanding set
1080                         * we need to give the hb mailbox cmd a chance to
1081                         * complete or TMO.
1082                         */
1083                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
1084                                         "0459 Adapter heartbeat still out"
1085                                         "standing:last compl time was %d ms.\n",
1086                                         jiffies_to_msecs(jiffies
1087                                                  - phba->last_completion_time));
1088                         mod_timer(&phba->hb_tmofunc,
1089                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1090                 }
1091         }
1092 }
1093
1094 /**
1095  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1096  * @phba: pointer to lpfc hba data structure.
1097  *
1098  * This routine is called to bring the HBA offline when HBA hardware error
1099  * other than Port Error 6 has been detected.
1100  **/
1101 static void
1102 lpfc_offline_eratt(struct lpfc_hba *phba)
1103 {
1104         struct lpfc_sli   *psli = &phba->sli;
1105
1106         spin_lock_irq(&phba->hbalock);
1107         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1108         spin_unlock_irq(&phba->hbalock);
1109         lpfc_offline_prep(phba);
1110
1111         lpfc_offline(phba);
1112         lpfc_reset_barrier(phba);
1113         spin_lock_irq(&phba->hbalock);
1114         lpfc_sli_brdreset(phba);
1115         spin_unlock_irq(&phba->hbalock);
1116         lpfc_hba_down_post(phba);
1117         lpfc_sli_brdready(phba, HS_MBRDY);
1118         lpfc_unblock_mgmt_io(phba);
1119         phba->link_state = LPFC_HBA_ERROR;
1120         return;
1121 }
1122
1123 /**
1124  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1125  * @phba: pointer to lpfc hba data structure.
1126  *
1127  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1128  * other than Port Error 6 has been detected.
1129  **/
1130 static void
1131 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1132 {
1133         lpfc_offline_prep(phba);
1134         lpfc_offline(phba);
1135         lpfc_sli4_brdreset(phba);
1136         lpfc_hba_down_post(phba);
1137         lpfc_sli4_post_status_check(phba);
1138         lpfc_unblock_mgmt_io(phba);
1139         phba->link_state = LPFC_HBA_ERROR;
1140 }
1141
1142 /**
1143  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1144  * @phba: pointer to lpfc hba data structure.
1145  *
1146  * This routine is invoked to handle the deferred HBA hardware error
1147  * conditions. This type of error is indicated by HBA by setting ER1
1148  * and another ER bit in the host status register. The driver will
1149  * wait until the ER1 bit clears before handling the error condition.
1150  **/
1151 static void
1152 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1153 {
1154         uint32_t old_host_status = phba->work_hs;
1155         struct lpfc_sli_ring  *pring;
1156         struct lpfc_sli *psli = &phba->sli;
1157
1158         /* If the pci channel is offline, ignore possible errors,
1159          * since we cannot communicate with the pci card anyway.
1160          */
1161         if (pci_channel_offline(phba->pcidev)) {
1162                 spin_lock_irq(&phba->hbalock);
1163                 phba->hba_flag &= ~DEFER_ERATT;
1164                 spin_unlock_irq(&phba->hbalock);
1165                 return;
1166         }
1167
1168         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1169                 "0479 Deferred Adapter Hardware Error "
1170                 "Data: x%x x%x x%x\n",
1171                 phba->work_hs,
1172                 phba->work_status[0], phba->work_status[1]);
1173
1174         spin_lock_irq(&phba->hbalock);
1175         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1176         spin_unlock_irq(&phba->hbalock);
1177
1178
1179         /*
1180          * Firmware stops when it triggred erratt. That could cause the I/Os
1181          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1182          * SCSI layer retry it after re-establishing link.
1183          */
1184         pring = &psli->ring[psli->fcp_ring];
1185         lpfc_sli_abort_iocb_ring(phba, pring);
1186
1187         /*
1188          * There was a firmware error. Take the hba offline and then
1189          * attempt to restart it.
1190          */
1191         lpfc_offline_prep(phba);
1192         lpfc_offline(phba);
1193
1194         /* Wait for the ER1 bit to clear.*/
1195         while (phba->work_hs & HS_FFER1) {
1196                 msleep(100);
1197                 phba->work_hs = readl(phba->HSregaddr);
1198                 /* If driver is unloading let the worker thread continue */
1199                 if (phba->pport->load_flag & FC_UNLOADING) {
1200                         phba->work_hs = 0;
1201                         break;
1202                 }
1203         }
1204
1205         /*
1206          * This is to ptrotect against a race condition in which
1207          * first write to the host attention register clear the
1208          * host status register.
1209          */
1210         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1211                 phba->work_hs = old_host_status & ~HS_FFER1;
1212
1213         spin_lock_irq(&phba->hbalock);
1214         phba->hba_flag &= ~DEFER_ERATT;
1215         spin_unlock_irq(&phba->hbalock);
1216         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1217         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1218 }
1219
1220 static void
1221 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1222 {
1223         struct lpfc_board_event_header board_event;
1224         struct Scsi_Host *shost;
1225
1226         board_event.event_type = FC_REG_BOARD_EVENT;
1227         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1228         shost = lpfc_shost_from_vport(phba->pport);
1229         fc_host_post_vendor_event(shost, fc_get_event_number(),
1230                                   sizeof(board_event),
1231                                   (char *) &board_event,
1232                                   LPFC_NL_VENDOR_ID);
1233 }
1234
1235 /**
1236  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1237  * @phba: pointer to lpfc hba data structure.
1238  *
1239  * This routine is invoked to handle the following HBA hardware error
1240  * conditions:
1241  * 1 - HBA error attention interrupt
1242  * 2 - DMA ring index out of range
1243  * 3 - Mailbox command came back as unknown
1244  **/
1245 static void
1246 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1247 {
1248         struct lpfc_vport *vport = phba->pport;
1249         struct lpfc_sli   *psli = &phba->sli;
1250         struct lpfc_sli_ring  *pring;
1251         uint32_t event_data;
1252         unsigned long temperature;
1253         struct temp_event temp_event_data;
1254         struct Scsi_Host  *shost;
1255
1256         /* If the pci channel is offline, ignore possible errors,
1257          * since we cannot communicate with the pci card anyway.
1258          */
1259         if (pci_channel_offline(phba->pcidev)) {
1260                 spin_lock_irq(&phba->hbalock);
1261                 phba->hba_flag &= ~DEFER_ERATT;
1262                 spin_unlock_irq(&phba->hbalock);
1263                 return;
1264         }
1265
1266         /* If resets are disabled then leave the HBA alone and return */
1267         if (!phba->cfg_enable_hba_reset)
1268                 return;
1269
1270         /* Send an internal error event to mgmt application */
1271         lpfc_board_errevt_to_mgmt(phba);
1272
1273         if (phba->hba_flag & DEFER_ERATT)
1274                 lpfc_handle_deferred_eratt(phba);
1275
1276         if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) {
1277                 if (phba->work_hs & HS_FFER6)
1278                         /* Re-establishing Link */
1279                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1280                                         "1301 Re-establishing Link "
1281                                         "Data: x%x x%x x%x\n",
1282                                         phba->work_hs, phba->work_status[0],
1283                                         phba->work_status[1]);
1284                 if (phba->work_hs & HS_FFER8)
1285                         /* Device Zeroization */
1286                         lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1287                                         "2861 Host Authentication device "
1288                                         "zeroization Data:x%x x%x x%x\n",
1289                                         phba->work_hs, phba->work_status[0],
1290                                         phba->work_status[1]);
1291
1292                 spin_lock_irq(&phba->hbalock);
1293                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1294                 spin_unlock_irq(&phba->hbalock);
1295
1296                 /*
1297                 * Firmware stops when it triggled erratt with HS_FFER6.
1298                 * That could cause the I/Os dropped by the firmware.
1299                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1300                 * retry it after re-establishing link.
1301                 */
1302                 pring = &psli->ring[psli->fcp_ring];
1303                 lpfc_sli_abort_iocb_ring(phba, pring);
1304
1305                 /*
1306                  * There was a firmware error.  Take the hba offline and then
1307                  * attempt to restart it.
1308                  */
1309                 lpfc_offline_prep(phba);
1310                 lpfc_offline(phba);
1311                 lpfc_sli_brdrestart(phba);
1312                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1313                         lpfc_unblock_mgmt_io(phba);
1314                         return;
1315                 }
1316                 lpfc_unblock_mgmt_io(phba);
1317         } else if (phba->work_hs & HS_CRIT_TEMP) {
1318                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1319                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1320                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1321                 temp_event_data.data = (uint32_t)temperature;
1322
1323                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1324                                 "0406 Adapter maximum temperature exceeded "
1325                                 "(%ld), taking this port offline "
1326                                 "Data: x%x x%x x%x\n",
1327                                 temperature, phba->work_hs,
1328                                 phba->work_status[0], phba->work_status[1]);
1329
1330                 shost = lpfc_shost_from_vport(phba->pport);
1331                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1332                                           sizeof(temp_event_data),
1333                                           (char *) &temp_event_data,
1334                                           SCSI_NL_VID_TYPE_PCI
1335                                           | PCI_VENDOR_ID_EMULEX);
1336
1337                 spin_lock_irq(&phba->hbalock);
1338                 phba->over_temp_state = HBA_OVER_TEMP;
1339                 spin_unlock_irq(&phba->hbalock);
1340                 lpfc_offline_eratt(phba);
1341
1342         } else {
1343                 /* The if clause above forces this code path when the status
1344                  * failure is a value other than FFER6. Do not call the offline
1345                  * twice. This is the adapter hardware error path.
1346                  */
1347                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1348                                 "0457 Adapter Hardware Error "
1349                                 "Data: x%x x%x x%x\n",
1350                                 phba->work_hs,
1351                                 phba->work_status[0], phba->work_status[1]);
1352
1353                 event_data = FC_REG_DUMP_EVENT;
1354                 shost = lpfc_shost_from_vport(vport);
1355                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1356                                 sizeof(event_data), (char *) &event_data,
1357                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1358
1359                 lpfc_offline_eratt(phba);
1360         }
1361         return;
1362 }
1363
1364 /**
1365  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1366  * @phba: pointer to lpfc hba data structure.
1367  *
1368  * This routine is invoked to handle the SLI4 HBA hardware error attention
1369  * conditions.
1370  **/
1371 static void
1372 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1373 {
1374         struct lpfc_vport *vport = phba->pport;
1375         uint32_t event_data;
1376         struct Scsi_Host *shost;
1377
1378         /* If the pci channel is offline, ignore possible errors, since
1379          * we cannot communicate with the pci card anyway.
1380          */
1381         if (pci_channel_offline(phba->pcidev))
1382                 return;
1383         /* If resets are disabled then leave the HBA alone and return */
1384         if (!phba->cfg_enable_hba_reset)
1385                 return;
1386
1387         /* Send an internal error event to mgmt application */
1388         lpfc_board_errevt_to_mgmt(phba);
1389
1390         /* For now, the actual action for SLI4 device handling is not
1391          * specified yet, just treated it as adaptor hardware failure
1392          */
1393         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1394                         "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1395                         phba->work_status[0], phba->work_status[1]);
1396
1397         event_data = FC_REG_DUMP_EVENT;
1398         shost = lpfc_shost_from_vport(vport);
1399         fc_host_post_vendor_event(shost, fc_get_event_number(),
1400                                   sizeof(event_data), (char *) &event_data,
1401                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1402
1403         lpfc_sli4_offline_eratt(phba);
1404 }
1405
1406 /**
1407  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1408  * @phba: pointer to lpfc HBA data structure.
1409  *
1410  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1411  * routine from the API jump table function pointer from the lpfc_hba struct.
1412  *
1413  * Return codes
1414  *   0 - success.
1415  *   Any other value - error.
1416  **/
1417 void
1418 lpfc_handle_eratt(struct lpfc_hba *phba)
1419 {
1420         (*phba->lpfc_handle_eratt)(phba);
1421 }
1422
1423 /**
1424  * lpfc_handle_latt - The HBA link event handler
1425  * @phba: pointer to lpfc hba data structure.
1426  *
1427  * This routine is invoked from the worker thread to handle a HBA host
1428  * attention link event.
1429  **/
1430 void
1431 lpfc_handle_latt(struct lpfc_hba *phba)
1432 {
1433         struct lpfc_vport *vport = phba->pport;
1434         struct lpfc_sli   *psli = &phba->sli;
1435         LPFC_MBOXQ_t *pmb;
1436         volatile uint32_t control;
1437         struct lpfc_dmabuf *mp;
1438         int rc = 0;
1439
1440         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1441         if (!pmb) {
1442                 rc = 1;
1443                 goto lpfc_handle_latt_err_exit;
1444         }
1445
1446         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1447         if (!mp) {
1448                 rc = 2;
1449                 goto lpfc_handle_latt_free_pmb;
1450         }
1451
1452         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1453         if (!mp->virt) {
1454                 rc = 3;
1455                 goto lpfc_handle_latt_free_mp;
1456         }
1457
1458         /* Cleanup any outstanding ELS commands */
1459         lpfc_els_flush_all_cmd(phba);
1460
1461         psli->slistat.link_event++;
1462         lpfc_read_la(phba, pmb, mp);
1463         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1464         pmb->vport = vport;
1465         /* Block ELS IOCBs until we have processed this mbox command */
1466         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1467         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1468         if (rc == MBX_NOT_FINISHED) {
1469                 rc = 4;
1470                 goto lpfc_handle_latt_free_mbuf;
1471         }
1472
1473         /* Clear Link Attention in HA REG */
1474         spin_lock_irq(&phba->hbalock);
1475         writel(HA_LATT, phba->HAregaddr);
1476         readl(phba->HAregaddr); /* flush */
1477         spin_unlock_irq(&phba->hbalock);
1478
1479         return;
1480
1481 lpfc_handle_latt_free_mbuf:
1482         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1483         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1484 lpfc_handle_latt_free_mp:
1485         kfree(mp);
1486 lpfc_handle_latt_free_pmb:
1487         mempool_free(pmb, phba->mbox_mem_pool);
1488 lpfc_handle_latt_err_exit:
1489         /* Enable Link attention interrupts */
1490         spin_lock_irq(&phba->hbalock);
1491         psli->sli_flag |= LPFC_PROCESS_LA;
1492         control = readl(phba->HCregaddr);
1493         control |= HC_LAINT_ENA;
1494         writel(control, phba->HCregaddr);
1495         readl(phba->HCregaddr); /* flush */
1496
1497         /* Clear Link Attention in HA REG */
1498         writel(HA_LATT, phba->HAregaddr);
1499         readl(phba->HAregaddr); /* flush */
1500         spin_unlock_irq(&phba->hbalock);
1501         lpfc_linkdown(phba);
1502         phba->link_state = LPFC_HBA_ERROR;
1503
1504         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1505                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1506
1507         return;
1508 }
1509
1510 /**
1511  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1512  * @phba: pointer to lpfc hba data structure.
1513  * @vpd: pointer to the vital product data.
1514  * @len: length of the vital product data in bytes.
1515  *
1516  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1517  * an array of characters. In this routine, the ModelName, ProgramType, and
1518  * ModelDesc, etc. fields of the phba data structure will be populated.
1519  *
1520  * Return codes
1521  *   0 - pointer to the VPD passed in is NULL
1522  *   1 - success
1523  **/
1524 int
1525 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1526 {
1527         uint8_t lenlo, lenhi;
1528         int Length;
1529         int i, j;
1530         int finished = 0;
1531         int index = 0;
1532
1533         if (!vpd)
1534                 return 0;
1535
1536         /* Vital Product */
1537         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1538                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1539                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1540                         (uint32_t) vpd[3]);
1541         while (!finished && (index < (len - 4))) {
1542                 switch (vpd[index]) {
1543                 case 0x82:
1544                 case 0x91:
1545                         index += 1;
1546                         lenlo = vpd[index];
1547                         index += 1;
1548                         lenhi = vpd[index];
1549                         index += 1;
1550                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1551                         index += i;
1552                         break;
1553                 case 0x90:
1554                         index += 1;
1555                         lenlo = vpd[index];
1556                         index += 1;
1557                         lenhi = vpd[index];
1558                         index += 1;
1559                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1560                         if (Length > len - index)
1561                                 Length = len - index;
1562                         while (Length > 0) {
1563                         /* Look for Serial Number */
1564                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1565                                 index += 2;
1566                                 i = vpd[index];
1567                                 index += 1;
1568                                 j = 0;
1569                                 Length -= (3+i);
1570                                 while(i--) {
1571                                         phba->SerialNumber[j++] = vpd[index++];
1572                                         if (j == 31)
1573                                                 break;
1574                                 }
1575                                 phba->SerialNumber[j] = 0;
1576                                 continue;
1577                         }
1578                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1579                                 phba->vpd_flag |= VPD_MODEL_DESC;
1580                                 index += 2;
1581                                 i = vpd[index];
1582                                 index += 1;
1583                                 j = 0;
1584                                 Length -= (3+i);
1585                                 while(i--) {
1586                                         phba->ModelDesc[j++] = vpd[index++];
1587                                         if (j == 255)
1588                                                 break;
1589                                 }
1590                                 phba->ModelDesc[j] = 0;
1591                                 continue;
1592                         }
1593                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1594                                 phba->vpd_flag |= VPD_MODEL_NAME;
1595                                 index += 2;
1596                                 i = vpd[index];
1597                                 index += 1;
1598                                 j = 0;
1599                                 Length -= (3+i);
1600                                 while(i--) {
1601                                         phba->ModelName[j++] = vpd[index++];
1602                                         if (j == 79)
1603                                                 break;
1604                                 }
1605                                 phba->ModelName[j] = 0;
1606                                 continue;
1607                         }
1608                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1609                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1610                                 index += 2;
1611                                 i = vpd[index];
1612                                 index += 1;
1613                                 j = 0;
1614                                 Length -= (3+i);
1615                                 while(i--) {
1616                                         phba->ProgramType[j++] = vpd[index++];
1617                                         if (j == 255)
1618                                                 break;
1619                                 }
1620                                 phba->ProgramType[j] = 0;
1621                                 continue;
1622                         }
1623                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1624                                 phba->vpd_flag |= VPD_PORT;
1625                                 index += 2;
1626                                 i = vpd[index];
1627                                 index += 1;
1628                                 j = 0;
1629                                 Length -= (3+i);
1630                                 while(i--) {
1631                                 phba->Port[j++] = vpd[index++];
1632                                 if (j == 19)
1633                                         break;
1634                                 }
1635                                 phba->Port[j] = 0;
1636                                 continue;
1637                         }
1638                         else {
1639                                 index += 2;
1640                                 i = vpd[index];
1641                                 index += 1;
1642                                 index += i;
1643                                 Length -= (3 + i);
1644                         }
1645                 }
1646                 finished = 0;
1647                 break;
1648                 case 0x78:
1649                         finished = 1;
1650                         break;
1651                 default:
1652                         index ++;
1653                         break;
1654                 }
1655         }
1656
1657         return(1);
1658 }
1659
1660 /**
1661  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1662  * @phba: pointer to lpfc hba data structure.
1663  * @mdp: pointer to the data structure to hold the derived model name.
1664  * @descp: pointer to the data structure to hold the derived description.
1665  *
1666  * This routine retrieves HBA's description based on its registered PCI device
1667  * ID. The @descp passed into this function points to an array of 256 chars. It
1668  * shall be returned with the model name, maximum speed, and the host bus type.
1669  * The @mdp passed into this function points to an array of 80 chars. When the
1670  * function returns, the @mdp will be filled with the model name.
1671  **/
1672 static void
1673 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1674 {
1675         lpfc_vpd_t *vp;
1676         uint16_t dev_id = phba->pcidev->device;
1677         int max_speed;
1678         int GE = 0;
1679         int oneConnect = 0; /* default is not a oneConnect */
1680         struct {
1681                 char *name;
1682                 char *bus;
1683                 char *function;
1684         } m = {"<Unknown>", "", ""};
1685
1686         if (mdp && mdp[0] != '\0'
1687                 && descp && descp[0] != '\0')
1688                 return;
1689
1690         if (phba->lmt & LMT_10Gb)
1691                 max_speed = 10;
1692         else if (phba->lmt & LMT_8Gb)
1693                 max_speed = 8;
1694         else if (phba->lmt & LMT_4Gb)
1695                 max_speed = 4;
1696         else if (phba->lmt & LMT_2Gb)
1697                 max_speed = 2;
1698         else
1699                 max_speed = 1;
1700
1701         vp = &phba->vpd;
1702
1703         switch (dev_id) {
1704         case PCI_DEVICE_ID_FIREFLY:
1705                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1706                 break;
1707         case PCI_DEVICE_ID_SUPERFLY:
1708                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1709                         m = (typeof(m)){"LP7000", "PCI",
1710                                         "Fibre Channel Adapter"};
1711                 else
1712                         m = (typeof(m)){"LP7000E", "PCI",
1713                                         "Fibre Channel Adapter"};
1714                 break;
1715         case PCI_DEVICE_ID_DRAGONFLY:
1716                 m = (typeof(m)){"LP8000", "PCI",
1717                                 "Fibre Channel Adapter"};
1718                 break;
1719         case PCI_DEVICE_ID_CENTAUR:
1720                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1721                         m = (typeof(m)){"LP9002", "PCI",
1722                                         "Fibre Channel Adapter"};
1723                 else
1724                         m = (typeof(m)){"LP9000", "PCI",
1725                                         "Fibre Channel Adapter"};
1726                 break;
1727         case PCI_DEVICE_ID_RFLY:
1728                 m = (typeof(m)){"LP952", "PCI",
1729                                 "Fibre Channel Adapter"};
1730                 break;
1731         case PCI_DEVICE_ID_PEGASUS:
1732                 m = (typeof(m)){"LP9802", "PCI-X",
1733                                 "Fibre Channel Adapter"};
1734                 break;
1735         case PCI_DEVICE_ID_THOR:
1736                 m = (typeof(m)){"LP10000", "PCI-X",
1737                                 "Fibre Channel Adapter"};
1738                 break;
1739         case PCI_DEVICE_ID_VIPER:
1740                 m = (typeof(m)){"LPX1000",  "PCI-X",
1741                                 "Fibre Channel Adapter"};
1742                 break;
1743         case PCI_DEVICE_ID_PFLY:
1744                 m = (typeof(m)){"LP982", "PCI-X",
1745                                 "Fibre Channel Adapter"};
1746                 break;
1747         case PCI_DEVICE_ID_TFLY:
1748                 m = (typeof(m)){"LP1050", "PCI-X",
1749                                 "Fibre Channel Adapter"};
1750                 break;
1751         case PCI_DEVICE_ID_HELIOS:
1752                 m = (typeof(m)){"LP11000", "PCI-X2",
1753                                 "Fibre Channel Adapter"};
1754                 break;
1755         case PCI_DEVICE_ID_HELIOS_SCSP:
1756                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1757                                 "Fibre Channel Adapter"};
1758                 break;
1759         case PCI_DEVICE_ID_HELIOS_DCSP:
1760                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1761                                 "Fibre Channel Adapter"};
1762                 break;
1763         case PCI_DEVICE_ID_NEPTUNE:
1764                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1765                 break;
1766         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1767                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1768                 break;
1769         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1770                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1771                 break;
1772         case PCI_DEVICE_ID_BMID:
1773                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1774                 break;
1775         case PCI_DEVICE_ID_BSMB:
1776                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1777                 break;
1778         case PCI_DEVICE_ID_ZEPHYR:
1779                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1780                 break;
1781         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1782                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1783                 break;
1784         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1785                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1786                 GE = 1;
1787                 break;
1788         case PCI_DEVICE_ID_ZMID:
1789                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1790                 break;
1791         case PCI_DEVICE_ID_ZSMB:
1792                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1793                 break;
1794         case PCI_DEVICE_ID_LP101:
1795                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1796                 break;
1797         case PCI_DEVICE_ID_LP10000S:
1798                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1799                 break;
1800         case PCI_DEVICE_ID_LP11000S:
1801                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1802                 break;
1803         case PCI_DEVICE_ID_LPE11000S:
1804                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1805                 break;
1806         case PCI_DEVICE_ID_SAT:
1807                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_SAT_MID:
1810                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1811                 break;
1812         case PCI_DEVICE_ID_SAT_SMB:
1813                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1814                 break;
1815         case PCI_DEVICE_ID_SAT_DCSP:
1816                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1817                 break;
1818         case PCI_DEVICE_ID_SAT_SCSP:
1819                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1820                 break;
1821         case PCI_DEVICE_ID_SAT_S:
1822                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1823                 break;
1824         case PCI_DEVICE_ID_HORNET:
1825                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1826                 GE = 1;
1827                 break;
1828         case PCI_DEVICE_ID_PROTEUS_VF:
1829                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1830                                 "Fibre Channel Adapter"};
1831                 break;
1832         case PCI_DEVICE_ID_PROTEUS_PF:
1833                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1834                                 "Fibre Channel Adapter"};
1835                 break;
1836         case PCI_DEVICE_ID_PROTEUS_S:
1837                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1838                                 "Fibre Channel Adapter"};
1839                 break;
1840         case PCI_DEVICE_ID_TIGERSHARK:
1841                 oneConnect = 1;
1842                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1843                 break;
1844         case PCI_DEVICE_ID_TOMCAT:
1845                 oneConnect = 1;
1846                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1847                 break;
1848         case PCI_DEVICE_ID_FALCON:
1849                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1850                                 "EmulexSecure Fibre"};
1851                 break;
1852         case PCI_DEVICE_ID_BALIUS:
1853                 m = (typeof(m)){"LPVe12002", "PCIe Shared I/O",
1854                                 "Fibre Channel Adapter"};
1855                 break;
1856         default:
1857                 m = (typeof(m)){"Unknown", "", ""};
1858                 break;
1859         }
1860
1861         if (mdp && mdp[0] == '\0')
1862                 snprintf(mdp, 79,"%s", m.name);
1863         /* oneConnect hba requires special processing, they are all initiators
1864          * and we put the port number on the end
1865          */
1866         if (descp && descp[0] == '\0') {
1867                 if (oneConnect)
1868                         snprintf(descp, 255,
1869                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1870                                 m.name, m.function,
1871                                 phba->Port);
1872                 else
1873                         snprintf(descp, 255,
1874                                 "Emulex %s %d%s %s %s",
1875                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1876                                 m.bus, m.function);
1877         }
1878 }
1879
1880 /**
1881  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1882  * @phba: pointer to lpfc hba data structure.
1883  * @pring: pointer to a IOCB ring.
1884  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1885  *
1886  * This routine posts a given number of IOCBs with the associated DMA buffer
1887  * descriptors specified by the cnt argument to the given IOCB ring.
1888  *
1889  * Return codes
1890  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1891  **/
1892 int
1893 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1894 {
1895         IOCB_t *icmd;
1896         struct lpfc_iocbq *iocb;
1897         struct lpfc_dmabuf *mp1, *mp2;
1898
1899         cnt += pring->missbufcnt;
1900
1901         /* While there are buffers to post */
1902         while (cnt > 0) {
1903                 /* Allocate buffer for  command iocb */
1904                 iocb = lpfc_sli_get_iocbq(phba);
1905                 if (iocb == NULL) {
1906                         pring->missbufcnt = cnt;
1907                         return cnt;
1908                 }
1909                 icmd = &iocb->iocb;
1910
1911                 /* 2 buffers can be posted per command */
1912                 /* Allocate buffer to post */
1913                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1914                 if (mp1)
1915                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1916                 if (!mp1 || !mp1->virt) {
1917                         kfree(mp1);
1918                         lpfc_sli_release_iocbq(phba, iocb);
1919                         pring->missbufcnt = cnt;
1920                         return cnt;
1921                 }
1922
1923                 INIT_LIST_HEAD(&mp1->list);
1924                 /* Allocate buffer to post */
1925                 if (cnt > 1) {
1926                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1927                         if (mp2)
1928                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1929                                                             &mp2->phys);
1930                         if (!mp2 || !mp2->virt) {
1931                                 kfree(mp2);
1932                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1933                                 kfree(mp1);
1934                                 lpfc_sli_release_iocbq(phba, iocb);
1935                                 pring->missbufcnt = cnt;
1936                                 return cnt;
1937                         }
1938
1939                         INIT_LIST_HEAD(&mp2->list);
1940                 } else {
1941                         mp2 = NULL;
1942                 }
1943
1944                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1945                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1946                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1947                 icmd->ulpBdeCount = 1;
1948                 cnt--;
1949                 if (mp2) {
1950                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1951                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1952                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1953                         cnt--;
1954                         icmd->ulpBdeCount = 2;
1955                 }
1956
1957                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1958                 icmd->ulpLe = 1;
1959
1960                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1961                     IOCB_ERROR) {
1962                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1963                         kfree(mp1);
1964                         cnt++;
1965                         if (mp2) {
1966                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1967                                 kfree(mp2);
1968                                 cnt++;
1969                         }
1970                         lpfc_sli_release_iocbq(phba, iocb);
1971                         pring->missbufcnt = cnt;
1972                         return cnt;
1973                 }
1974                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1975                 if (mp2)
1976                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1977         }
1978         pring->missbufcnt = 0;
1979         return 0;
1980 }
1981
1982 /**
1983  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1984  * @phba: pointer to lpfc hba data structure.
1985  *
1986  * This routine posts initial receive IOCB buffers to the ELS ring. The
1987  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1988  * set to 64 IOCBs.
1989  *
1990  * Return codes
1991  *   0 - success (currently always success)
1992  **/
1993 static int
1994 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1995 {
1996         struct lpfc_sli *psli = &phba->sli;
1997
1998         /* Ring 0, ELS / CT buffers */
1999         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
2000         /* Ring 2 - FCP no buffers needed */
2001
2002         return 0;
2003 }
2004
2005 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
2006
2007 /**
2008  * lpfc_sha_init - Set up initial array of hash table entries
2009  * @HashResultPointer: pointer to an array as hash table.
2010  *
2011  * This routine sets up the initial values to the array of hash table entries
2012  * for the LC HBAs.
2013  **/
2014 static void
2015 lpfc_sha_init(uint32_t * HashResultPointer)
2016 {
2017         HashResultPointer[0] = 0x67452301;
2018         HashResultPointer[1] = 0xEFCDAB89;
2019         HashResultPointer[2] = 0x98BADCFE;
2020         HashResultPointer[3] = 0x10325476;
2021         HashResultPointer[4] = 0xC3D2E1F0;
2022 }
2023
2024 /**
2025  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
2026  * @HashResultPointer: pointer to an initial/result hash table.
2027  * @HashWorkingPointer: pointer to an working hash table.
2028  *
2029  * This routine iterates an initial hash table pointed by @HashResultPointer
2030  * with the values from the working hash table pointeed by @HashWorkingPointer.
2031  * The results are putting back to the initial hash table, returned through
2032  * the @HashResultPointer as the result hash table.
2033  **/
2034 static void
2035 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2036 {
2037         int t;
2038         uint32_t TEMP;
2039         uint32_t A, B, C, D, E;
2040         t = 16;
2041         do {
2042                 HashWorkingPointer[t] =
2043                     S(1,
2044                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2045                                                                      8] ^
2046                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2047         } while (++t <= 79);
2048         t = 0;
2049         A = HashResultPointer[0];
2050         B = HashResultPointer[1];
2051         C = HashResultPointer[2];
2052         D = HashResultPointer[3];
2053         E = HashResultPointer[4];
2054
2055         do {
2056                 if (t < 20) {
2057                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2058                 } else if (t < 40) {
2059                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2060                 } else if (t < 60) {
2061                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2062                 } else {
2063                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2064                 }
2065                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2066                 E = D;
2067                 D = C;
2068                 C = S(30, B);
2069                 B = A;
2070                 A = TEMP;
2071         } while (++t <= 79);
2072
2073         HashResultPointer[0] += A;
2074         HashResultPointer[1] += B;
2075         HashResultPointer[2] += C;
2076         HashResultPointer[3] += D;
2077         HashResultPointer[4] += E;
2078
2079 }
2080
2081 /**
2082  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2083  * @RandomChallenge: pointer to the entry of host challenge random number array.
2084  * @HashWorking: pointer to the entry of the working hash array.
2085  *
2086  * This routine calculates the working hash array referred by @HashWorking
2087  * from the challenge random numbers associated with the host, referred by
2088  * @RandomChallenge. The result is put into the entry of the working hash
2089  * array and returned by reference through @HashWorking.
2090  **/
2091 static void
2092 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2093 {
2094         *HashWorking = (*RandomChallenge ^ *HashWorking);
2095 }
2096
2097 /**
2098  * lpfc_hba_init - Perform special handling for LC HBA initialization
2099  * @phba: pointer to lpfc hba data structure.
2100  * @hbainit: pointer to an array of unsigned 32-bit integers.
2101  *
2102  * This routine performs the special handling for LC HBA initialization.
2103  **/
2104 void
2105 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2106 {
2107         int t;
2108         uint32_t *HashWorking;
2109         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2110
2111         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2112         if (!HashWorking)
2113                 return;
2114
2115         HashWorking[0] = HashWorking[78] = *pwwnn++;
2116         HashWorking[1] = HashWorking[79] = *pwwnn;
2117
2118         for (t = 0; t < 7; t++)
2119                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2120
2121         lpfc_sha_init(hbainit);
2122         lpfc_sha_iterate(hbainit, HashWorking);
2123         kfree(HashWorking);
2124 }
2125
2126 /**
2127  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2128  * @vport: pointer to a virtual N_Port data structure.
2129  *
2130  * This routine performs the necessary cleanups before deleting the @vport.
2131  * It invokes the discovery state machine to perform necessary state
2132  * transitions and to release the ndlps associated with the @vport. Note,
2133  * the physical port is treated as @vport 0.
2134  **/
2135 void
2136 lpfc_cleanup(struct lpfc_vport *vport)
2137 {
2138         struct lpfc_hba   *phba = vport->phba;
2139         struct lpfc_nodelist *ndlp, *next_ndlp;
2140         int i = 0;
2141
2142         if (phba->link_state > LPFC_LINK_DOWN)
2143                 lpfc_port_link_failure(vport);
2144
2145         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2146                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2147                         ndlp = lpfc_enable_node(vport, ndlp,
2148                                                 NLP_STE_UNUSED_NODE);
2149                         if (!ndlp)
2150                                 continue;
2151                         spin_lock_irq(&phba->ndlp_lock);
2152                         NLP_SET_FREE_REQ(ndlp);
2153                         spin_unlock_irq(&phba->ndlp_lock);
2154                         /* Trigger the release of the ndlp memory */
2155                         lpfc_nlp_put(ndlp);
2156                         continue;
2157                 }
2158                 spin_lock_irq(&phba->ndlp_lock);
2159                 if (NLP_CHK_FREE_REQ(ndlp)) {
2160                         /* The ndlp should not be in memory free mode already */
2161                         spin_unlock_irq(&phba->ndlp_lock);
2162                         continue;
2163                 } else
2164                         /* Indicate request for freeing ndlp memory */
2165                         NLP_SET_FREE_REQ(ndlp);
2166                 spin_unlock_irq(&phba->ndlp_lock);
2167
2168                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2169                     ndlp->nlp_DID == Fabric_DID) {
2170                         /* Just free up ndlp with Fabric_DID for vports */
2171                         lpfc_nlp_put(ndlp);
2172                         continue;
2173                 }
2174
2175                 if (ndlp->nlp_type & NLP_FABRIC)
2176                         lpfc_disc_state_machine(vport, ndlp, NULL,
2177                                         NLP_EVT_DEVICE_RECOVERY);
2178
2179                 lpfc_disc_state_machine(vport, ndlp, NULL,
2180                                              NLP_EVT_DEVICE_RM);
2181
2182         }
2183
2184         /* At this point, ALL ndlp's should be gone
2185          * because of the previous NLP_EVT_DEVICE_RM.
2186          * Lets wait for this to happen, if needed.
2187          */
2188         while (!list_empty(&vport->fc_nodes)) {
2189                 if (i++ > 3000) {
2190                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2191                                 "0233 Nodelist not empty\n");
2192                         list_for_each_entry_safe(ndlp, next_ndlp,
2193                                                 &vport->fc_nodes, nlp_listp) {
2194                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2195                                                 LOG_NODE,
2196                                                 "0282 did:x%x ndlp:x%p "
2197                                                 "usgmap:x%x refcnt:%d\n",
2198                                                 ndlp->nlp_DID, (void *)ndlp,
2199                                                 ndlp->nlp_usg_map,
2200                                                 atomic_read(
2201                                                         &ndlp->kref.refcount));
2202                         }
2203                         break;
2204                 }
2205
2206                 /* Wait for any activity on ndlps to settle */
2207                 msleep(10);
2208         }
2209 }
2210
2211 /**
2212  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2213  * @vport: pointer to a virtual N_Port data structure.
2214  *
2215  * This routine stops all the timers associated with a @vport. This function
2216  * is invoked before disabling or deleting a @vport. Note that the physical
2217  * port is treated as @vport 0.
2218  **/
2219 void
2220 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2221 {
2222         del_timer_sync(&vport->els_tmofunc);
2223         del_timer_sync(&vport->fc_fdmitmo);
2224         lpfc_can_disctmo(vport);
2225         return;
2226 }
2227
2228 /**
2229  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2230  * @phba: pointer to lpfc hba data structure.
2231  *
2232  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2233  * caller of this routine should already hold the host lock.
2234  **/
2235 void
2236 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2237 {
2238         /* Clear pending FCF rediscovery wait flag */
2239         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2240
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         /* Clear failover in progress flags */
2265         phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC);
2266         spin_unlock_irq(&phba->hbalock);
2267 }
2268
2269 /**
2270  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2271  * @phba: pointer to lpfc hba data structure.
2272  *
2273  * This routine stops all the timers associated with a HBA. This function is
2274  * invoked before either putting a HBA offline or unloading the driver.
2275  **/
2276 void
2277 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2278 {
2279         lpfc_stop_vport_timers(phba->pport);
2280         del_timer_sync(&phba->sli.mbox_tmo);
2281         del_timer_sync(&phba->fabric_block_timer);
2282         del_timer_sync(&phba->eratt_poll);
2283         del_timer_sync(&phba->hb_tmofunc);
2284         phba->hb_outstanding = 0;
2285
2286         switch (phba->pci_dev_grp) {
2287         case LPFC_PCI_DEV_LP:
2288                 /* Stop any LightPulse device specific driver timers */
2289                 del_timer_sync(&phba->fcp_poll_timer);
2290                 break;
2291         case LPFC_PCI_DEV_OC:
2292                 /* Stop any OneConnect device sepcific driver timers */
2293                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2294                 break;
2295         default:
2296                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2297                                 "0297 Invalid device group (x%x)\n",
2298                                 phba->pci_dev_grp);
2299                 break;
2300         }
2301         return;
2302 }
2303
2304 /**
2305  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2306  * @phba: pointer to lpfc hba data structure.
2307  *
2308  * This routine marks a HBA's management interface as blocked. Once the HBA's
2309  * management interface is marked as blocked, all the user space access to
2310  * the HBA, whether they are from sysfs interface or libdfc interface will
2311  * all be blocked. The HBA is set to block the management interface when the
2312  * driver prepares the HBA interface for online or offline.
2313  **/
2314 static void
2315 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2316 {
2317         unsigned long iflag;
2318         uint8_t actcmd = MBX_HEARTBEAT;
2319         unsigned long timeout;
2320
2321
2322         spin_lock_irqsave(&phba->hbalock, iflag);
2323         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2324         if (phba->sli.mbox_active)
2325                 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
2326         spin_unlock_irqrestore(&phba->hbalock, iflag);
2327         /* Determine how long we might wait for the active mailbox
2328          * command to be gracefully completed by firmware.
2329          */
2330         timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
2331                         jiffies;
2332         /* Wait for the outstnading mailbox command to complete */
2333         while (phba->sli.mbox_active) {
2334                 /* Check active mailbox complete status every 2ms */
2335                 msleep(2);
2336                 if (time_after(jiffies, timeout)) {
2337                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2338                                 "2813 Mgmt IO is Blocked %x "
2339                                 "- mbox cmd %x still active\n",
2340                                 phba->sli.sli_flag, actcmd);
2341                         break;
2342                 }
2343         }
2344 }
2345
2346 /**
2347  * lpfc_online - Initialize and bring a HBA online
2348  * @phba: pointer to lpfc hba data structure.
2349  *
2350  * This routine initializes the HBA and brings a HBA online. During this
2351  * process, the management interface is blocked to prevent user space access
2352  * to the HBA interfering with the driver initialization.
2353  *
2354  * Return codes
2355  *   0 - successful
2356  *   1 - failed
2357  **/
2358 int
2359 lpfc_online(struct lpfc_hba *phba)
2360 {
2361         struct lpfc_vport *vport;
2362         struct lpfc_vport **vports;
2363         int i;
2364
2365         if (!phba)
2366                 return 0;
2367         vport = phba->pport;
2368
2369         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2370                 return 0;
2371
2372         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2373                         "0458 Bring Adapter online\n");
2374
2375         lpfc_block_mgmt_io(phba);
2376
2377         if (!lpfc_sli_queue_setup(phba)) {
2378                 lpfc_unblock_mgmt_io(phba);
2379                 return 1;
2380         }
2381
2382         if (phba->sli_rev == LPFC_SLI_REV4) {
2383                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2384                         lpfc_unblock_mgmt_io(phba);
2385                         return 1;
2386                 }
2387         } else {
2388                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2389                         lpfc_unblock_mgmt_io(phba);
2390                         return 1;
2391                 }
2392         }
2393
2394         vports = lpfc_create_vport_work_array(phba);
2395         if (vports != NULL)
2396                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2397                         struct Scsi_Host *shost;
2398                         shost = lpfc_shost_from_vport(vports[i]);
2399                         spin_lock_irq(shost->host_lock);
2400                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2401                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2402                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2403                         if (phba->sli_rev == LPFC_SLI_REV4)
2404                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2405                         spin_unlock_irq(shost->host_lock);
2406                 }
2407                 lpfc_destroy_vport_work_array(phba, vports);
2408
2409         lpfc_unblock_mgmt_io(phba);
2410         return 0;
2411 }
2412
2413 /**
2414  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2415  * @phba: pointer to lpfc hba data structure.
2416  *
2417  * This routine marks a HBA's management interface as not blocked. Once the
2418  * HBA's management interface is marked as not blocked, all the user space
2419  * access to the HBA, whether they are from sysfs interface or libdfc
2420  * interface will be allowed. The HBA is set to block the management interface
2421  * when the driver prepares the HBA interface for online or offline and then
2422  * set to unblock the management interface afterwards.
2423  **/
2424 void
2425 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2426 {
2427         unsigned long iflag;
2428
2429         spin_lock_irqsave(&phba->hbalock, iflag);
2430         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2431         spin_unlock_irqrestore(&phba->hbalock, iflag);
2432 }
2433
2434 /**
2435  * lpfc_offline_prep - Prepare a HBA to be brought offline
2436  * @phba: pointer to lpfc hba data structure.
2437  *
2438  * This routine is invoked to prepare a HBA to be brought offline. It performs
2439  * unregistration login to all the nodes on all vports and flushes the mailbox
2440  * queue to make it ready to be brought offline.
2441  **/
2442 void
2443 lpfc_offline_prep(struct lpfc_hba * phba)
2444 {
2445         struct lpfc_vport *vport = phba->pport;
2446         struct lpfc_nodelist  *ndlp, *next_ndlp;
2447         struct lpfc_vport **vports;
2448         struct Scsi_Host *shost;
2449         int i;
2450
2451         if (vport->fc_flag & FC_OFFLINE_MODE)
2452                 return;
2453
2454         lpfc_block_mgmt_io(phba);
2455
2456         lpfc_linkdown(phba);
2457
2458         /* Issue an unreg_login to all nodes on all vports */
2459         vports = lpfc_create_vport_work_array(phba);
2460         if (vports != NULL) {
2461                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2462                         if (vports[i]->load_flag & FC_UNLOADING)
2463                                 continue;
2464                         shost = lpfc_shost_from_vport(vports[i]);
2465                         spin_lock_irq(shost->host_lock);
2466                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2467                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2468                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2469                         spin_unlock_irq(shost->host_lock);
2470
2471                         shost = lpfc_shost_from_vport(vports[i]);
2472                         list_for_each_entry_safe(ndlp, next_ndlp,
2473                                                  &vports[i]->fc_nodes,
2474                                                  nlp_listp) {
2475                                 if (!NLP_CHK_NODE_ACT(ndlp))
2476                                         continue;
2477                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2478                                         continue;
2479                                 if (ndlp->nlp_type & NLP_FABRIC) {
2480                                         lpfc_disc_state_machine(vports[i], ndlp,
2481                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2482                                         lpfc_disc_state_machine(vports[i], ndlp,
2483                                                 NULL, NLP_EVT_DEVICE_RM);
2484                                 }
2485                                 spin_lock_irq(shost->host_lock);
2486                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2487                                 spin_unlock_irq(shost->host_lock);
2488                                 lpfc_unreg_rpi(vports[i], ndlp);
2489                         }
2490                 }
2491         }
2492         lpfc_destroy_vport_work_array(phba, vports);
2493
2494         lpfc_sli_mbox_sys_shutdown(phba);
2495 }
2496
2497 /**
2498  * lpfc_offline - Bring a HBA offline
2499  * @phba: pointer to lpfc hba data structure.
2500  *
2501  * This routine actually brings a HBA offline. It stops all the timers
2502  * associated with the HBA, brings down the SLI layer, and eventually
2503  * marks the HBA as in offline state for the upper layer protocol.
2504  **/
2505 void
2506 lpfc_offline(struct lpfc_hba *phba)
2507 {
2508         struct Scsi_Host  *shost;
2509         struct lpfc_vport **vports;
2510         int i;
2511
2512         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2513                 return;
2514
2515         /* stop port and all timers associated with this hba */
2516         lpfc_stop_port(phba);
2517         vports = lpfc_create_vport_work_array(phba);
2518         if (vports != NULL)
2519                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
2520                         lpfc_stop_vport_timers(vports[i]);
2521         lpfc_destroy_vport_work_array(phba, vports);
2522         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2523                         "0460 Bring Adapter offline\n");
2524         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2525            now.  */
2526         lpfc_sli_hba_down(phba);
2527         spin_lock_irq(&phba->hbalock);
2528         phba->work_ha = 0;
2529         spin_unlock_irq(&phba->hbalock);
2530         vports = lpfc_create_vport_work_array(phba);
2531         if (vports != NULL)
2532                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2533                         shost = lpfc_shost_from_vport(vports[i]);
2534                         spin_lock_irq(shost->host_lock);
2535                         vports[i]->work_port_events = 0;
2536                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2537                         spin_unlock_irq(shost->host_lock);
2538                 }
2539         lpfc_destroy_vport_work_array(phba, vports);
2540 }
2541
2542 /**
2543  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2544  * @phba: pointer to lpfc hba data structure.
2545  *
2546  * This routine is to free all the SCSI buffers and IOCBs from the driver
2547  * list back to kernel. It is called from lpfc_pci_remove_one to free
2548  * the internal resources before the device is removed from the system.
2549  *
2550  * Return codes
2551  *   0 - successful (for now, it always returns 0)
2552  **/
2553 static int
2554 lpfc_scsi_free(struct lpfc_hba *phba)
2555 {
2556         struct lpfc_scsi_buf *sb, *sb_next;
2557         struct lpfc_iocbq *io, *io_next;
2558
2559         spin_lock_irq(&phba->hbalock);
2560         /* Release all the lpfc_scsi_bufs maintained by this host. */
2561         spin_lock(&phba->scsi_buf_list_lock);
2562         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2563                 list_del(&sb->list);
2564                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2565                               sb->dma_handle);
2566                 kfree(sb);
2567                 phba->total_scsi_bufs--;
2568         }
2569         spin_unlock(&phba->scsi_buf_list_lock);
2570
2571         /* Release all the lpfc_iocbq entries maintained by this host. */
2572         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2573                 list_del(&io->list);
2574                 kfree(io);
2575                 phba->total_iocbq_bufs--;
2576         }
2577         spin_unlock_irq(&phba->hbalock);
2578         return 0;
2579 }
2580
2581 /**
2582  * lpfc_create_port - Create an FC port
2583  * @phba: pointer to lpfc hba data structure.
2584  * @instance: a unique integer ID to this FC port.
2585  * @dev: pointer to the device data structure.
2586  *
2587  * This routine creates a FC port for the upper layer protocol. The FC port
2588  * can be created on top of either a physical port or a virtual port provided
2589  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2590  * and associates the FC port created before adding the shost into the SCSI
2591  * layer.
2592  *
2593  * Return codes
2594  *   @vport - pointer to the virtual N_Port data structure.
2595  *   NULL - port create failed.
2596  **/
2597 struct lpfc_vport *
2598 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2599 {
2600         struct lpfc_vport *vport;
2601         struct Scsi_Host  *shost;
2602         int error = 0;
2603
2604         if (dev != &phba->pcidev->dev)
2605                 shost = scsi_host_alloc(&lpfc_vport_template,
2606                                         sizeof(struct lpfc_vport));
2607         else
2608                 shost = scsi_host_alloc(&lpfc_template,
2609                                         sizeof(struct lpfc_vport));
2610         if (!shost)
2611                 goto out;
2612
2613         vport = (struct lpfc_vport *) shost->hostdata;
2614         vport->phba = phba;
2615         vport->load_flag |= FC_LOADING;
2616         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2617         vport->fc_rscn_flush = 0;
2618
2619         lpfc_get_vport_cfgparam(vport);
2620         shost->unique_id = instance;
2621         shost->max_id = LPFC_MAX_TARGET;
2622         shost->max_lun = vport->cfg_max_luns;
2623         shost->this_id = -1;
2624         shost->max_cmd_len = 16;
2625         if (phba->sli_rev == LPFC_SLI_REV4) {
2626                 shost->dma_boundary =
2627                         phba->sli4_hba.pc_sli4_params.sge_supp_len-1;
2628                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2629         }
2630
2631         /*
2632          * Set initial can_queue value since 0 is no longer supported and
2633          * scsi_add_host will fail. This will be adjusted later based on the
2634          * max xri value determined in hba setup.
2635          */
2636         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2637         if (dev != &phba->pcidev->dev) {
2638                 shost->transportt = lpfc_vport_transport_template;
2639                 vport->port_type = LPFC_NPIV_PORT;
2640         } else {
2641                 shost->transportt = lpfc_transport_template;
2642                 vport->port_type = LPFC_PHYSICAL_PORT;
2643         }
2644
2645         /* Initialize all internally managed lists. */
2646         INIT_LIST_HEAD(&vport->fc_nodes);
2647         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2648         spin_lock_init(&vport->work_port_lock);
2649
2650         init_timer(&vport->fc_disctmo);
2651         vport->fc_disctmo.function = lpfc_disc_timeout;
2652         vport->fc_disctmo.data = (unsigned long)vport;
2653
2654         init_timer(&vport->fc_fdmitmo);
2655         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2656         vport->fc_fdmitmo.data = (unsigned long)vport;
2657
2658         init_timer(&vport->els_tmofunc);
2659         vport->els_tmofunc.function = lpfc_els_timeout;
2660         vport->els_tmofunc.data = (unsigned long)vport;
2661         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2662         if (error)
2663                 goto out_put_shost;
2664
2665         spin_lock_irq(&phba->hbalock);
2666         list_add_tail(&vport->listentry, &phba->port_list);
2667         spin_unlock_irq(&phba->hbalock);
2668         return vport;
2669
2670 out_put_shost:
2671         scsi_host_put(shost);
2672 out:
2673         return NULL;
2674 }
2675
2676 /**
2677  * destroy_port -  destroy an FC port
2678  * @vport: pointer to an lpfc virtual N_Port data structure.
2679  *
2680  * This routine destroys a FC port from the upper layer protocol. All the
2681  * resources associated with the port are released.
2682  **/
2683 void
2684 destroy_port(struct lpfc_vport *vport)
2685 {
2686         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2687         struct lpfc_hba  *phba = vport->phba;
2688
2689         lpfc_debugfs_terminate(vport);
2690         fc_remove_host(shost);
2691         scsi_remove_host(shost);
2692
2693         spin_lock_irq(&phba->hbalock);
2694         list_del_init(&vport->listentry);
2695         spin_unlock_irq(&phba->hbalock);
2696
2697         lpfc_cleanup(vport);
2698         return;
2699 }
2700
2701 /**
2702  * lpfc_get_instance - Get a unique integer ID
2703  *
2704  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2705  * uses the kernel idr facility to perform the task.
2706  *
2707  * Return codes:
2708  *   instance - a unique integer ID allocated as the new instance.
2709  *   -1 - lpfc get instance failed.
2710  **/
2711 int
2712 lpfc_get_instance(void)
2713 {
2714         int instance = 0;
2715
2716         /* Assign an unused number */
2717         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2718                 return -1;
2719         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2720                 return -1;
2721         return instance;
2722 }
2723
2724 /**
2725  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2726  * @shost: pointer to SCSI host data structure.
2727  * @time: elapsed time of the scan in jiffies.
2728  *
2729  * This routine is called by the SCSI layer with a SCSI host to determine
2730  * whether the scan host is finished.
2731  *
2732  * Note: there is no scan_start function as adapter initialization will have
2733  * asynchronously kicked off the link initialization.
2734  *
2735  * Return codes
2736  *   0 - SCSI host scan is not over yet.
2737  *   1 - SCSI host scan is over.
2738  **/
2739 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2740 {
2741         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2742         struct lpfc_hba   *phba = vport->phba;
2743         int stat = 0;
2744
2745         spin_lock_irq(shost->host_lock);
2746
2747         if (vport->load_flag & FC_UNLOADING) {
2748                 stat = 1;
2749                 goto finished;
2750         }
2751         if (time >= 30 * HZ) {
2752                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2753                                 "0461 Scanning longer than 30 "
2754                                 "seconds.  Continuing initialization\n");
2755                 stat = 1;
2756                 goto finished;
2757         }
2758         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2759                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2760                                 "0465 Link down longer than 15 "
2761                                 "seconds.  Continuing initialization\n");
2762                 stat = 1;
2763                 goto finished;
2764         }
2765
2766         if (vport->port_state != LPFC_VPORT_READY)
2767                 goto finished;
2768         if (vport->num_disc_nodes || vport->fc_prli_sent)
2769                 goto finished;
2770         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2771                 goto finished;
2772         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2773                 goto finished;
2774
2775         stat = 1;
2776
2777 finished:
2778         spin_unlock_irq(shost->host_lock);
2779         return stat;
2780 }
2781
2782 /**
2783  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2784  * @shost: pointer to SCSI host data structure.
2785  *
2786  * This routine initializes a given SCSI host attributes on a FC port. The
2787  * SCSI host can be either on top of a physical port or a virtual port.
2788  **/
2789 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2790 {
2791         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2792         struct lpfc_hba   *phba = vport->phba;
2793         /*
2794          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2795          */
2796
2797         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2798         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2799         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2800
2801         memset(fc_host_supported_fc4s(shost), 0,
2802                sizeof(fc_host_supported_fc4s(shost)));
2803         fc_host_supported_fc4s(shost)[2] = 1;
2804         fc_host_supported_fc4s(shost)[7] = 1;
2805
2806         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2807                                  sizeof fc_host_symbolic_name(shost));
2808
2809         fc_host_supported_speeds(shost) = 0;
2810         if (phba->lmt & LMT_10Gb)
2811                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2812         if (phba->lmt & LMT_8Gb)
2813                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2814         if (phba->lmt & LMT_4Gb)
2815                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2816         if (phba->lmt & LMT_2Gb)
2817                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2818         if (phba->lmt & LMT_1Gb)
2819                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2820
2821         fc_host_maxframe_size(shost) =
2822                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2823                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2824
2825         fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo;
2826
2827         /* This value is also unchanging */
2828         memset(fc_host_active_fc4s(shost), 0,
2829                sizeof(fc_host_active_fc4s(shost)));
2830         fc_host_active_fc4s(shost)[2] = 1;
2831         fc_host_active_fc4s(shost)[7] = 1;
2832
2833         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2834         spin_lock_irq(shost->host_lock);
2835         vport->load_flag &= ~FC_LOADING;
2836         spin_unlock_irq(shost->host_lock);
2837 }
2838
2839 /**
2840  * lpfc_stop_port_s3 - Stop SLI3 device port
2841  * @phba: pointer to lpfc hba data structure.
2842  *
2843  * This routine is invoked to stop an SLI3 device port, it stops the device
2844  * from generating interrupts and stops the device driver's timers for the
2845  * device.
2846  **/
2847 static void
2848 lpfc_stop_port_s3(struct lpfc_hba *phba)
2849 {
2850         /* Clear all interrupt enable conditions */
2851         writel(0, phba->HCregaddr);
2852         readl(phba->HCregaddr); /* flush */
2853         /* Clear all pending interrupts */
2854         writel(0xffffffff, phba->HAregaddr);
2855         readl(phba->HAregaddr); /* flush */
2856
2857         /* Reset some HBA SLI setup states */
2858         lpfc_stop_hba_timers(phba);
2859         phba->pport->work_port_events = 0;
2860 }
2861
2862 /**
2863  * lpfc_stop_port_s4 - Stop SLI4 device port
2864  * @phba: pointer to lpfc hba data structure.
2865  *
2866  * This routine is invoked to stop an SLI4 device port, it stops the device
2867  * from generating interrupts and stops the device driver's timers for the
2868  * device.
2869  **/
2870 static void
2871 lpfc_stop_port_s4(struct lpfc_hba *phba)
2872 {
2873         /* Reset some HBA SLI4 setup states */
2874         lpfc_stop_hba_timers(phba);
2875         phba->pport->work_port_events = 0;
2876         phba->sli4_hba.intr_enable = 0;
2877 }
2878
2879 /**
2880  * lpfc_stop_port - Wrapper function for stopping hba port
2881  * @phba: Pointer to HBA context object.
2882  *
2883  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2884  * the API jump table function pointer from the lpfc_hba struct.
2885  **/
2886 void
2887 lpfc_stop_port(struct lpfc_hba *phba)
2888 {
2889         phba->lpfc_stop_port(phba);
2890 }
2891
2892 /**
2893  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2894  * @phba: Pointer to hba for which this call is being executed.
2895  *
2896  * This routine starts the timer waiting for the FCF rediscovery to complete.
2897  **/
2898 void
2899 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2900 {
2901         unsigned long fcf_redisc_wait_tmo =
2902                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2903         /* Start fcf rediscovery wait period timer */
2904         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2905         spin_lock_irq(&phba->hbalock);
2906         /* Allow action to new fcf asynchronous event */
2907         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2908         /* Mark the FCF rediscovery pending state */
2909         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2910         spin_unlock_irq(&phba->hbalock);
2911 }
2912
2913 /**
2914  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2915  * @ptr: Map to lpfc_hba data structure pointer.
2916  *
2917  * This routine is invoked when waiting for FCF table rediscover has been
2918  * timed out. If new FCF record(s) has (have) been discovered during the
2919  * wait period, a new FCF event shall be added to the FCOE async event
2920  * list, and then worker thread shall be waked up for processing from the
2921  * worker thread context.
2922  **/
2923 void
2924 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2925 {
2926         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2927
2928         /* Don't send FCF rediscovery event if timer cancelled */
2929         spin_lock_irq(&phba->hbalock);
2930         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2931                 spin_unlock_irq(&phba->hbalock);
2932                 return;
2933         }
2934         /* Clear FCF rediscovery timer pending flag */
2935         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2936         /* FCF rediscovery event to worker thread */
2937         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2938         spin_unlock_irq(&phba->hbalock);
2939         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2940                         "2776 FCF rediscover quiescent timer expired\n");
2941         /* wake up worker thread */
2942         lpfc_worker_wake_up(phba);
2943 }
2944
2945 /**
2946  * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2947  * @phba: pointer to lpfc hba data structure.
2948  *
2949  * This function uses the QUERY_FW_CFG mailbox command to determine if the
2950  * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2951  * was successful and the firmware supports FCoE. Any other return indicates
2952  * a error. It is assumed that this function will be called before interrupts
2953  * are enabled.
2954  **/
2955 static int
2956 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2957 {
2958         int rc = 0;
2959         LPFC_MBOXQ_t *mboxq;
2960         struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2961         uint32_t length;
2962         uint32_t shdr_status, shdr_add_status;
2963
2964         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2965         if (!mboxq) {
2966                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2967                                 "2621 Failed to allocate mbox for "
2968                                 "query firmware config cmd\n");
2969                 return -ENOMEM;
2970         }
2971         query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2972         length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2973                   sizeof(struct lpfc_sli4_cfg_mhdr));
2974         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2975                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2976                          length, LPFC_SLI4_MBX_EMBED);
2977         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2978         /* The IOCTL status is embedded in the mailbox subheader. */
2979         shdr_status = bf_get(lpfc_mbox_hdr_status,
2980                              &query_fw_cfg->header.cfg_shdr.response);
2981         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2982                                  &query_fw_cfg->header.cfg_shdr.response);
2983         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2984                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2985                                 "2622 Query Firmware Config failed "
2986                                 "mbx status x%x, status x%x add_status x%x\n",
2987                                 rc, shdr_status, shdr_add_status);
2988                 return -EINVAL;
2989         }
2990         if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
2991                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2992                                 "2623 FCoE Function not supported by firmware. "
2993                                 "Function mode = %08x\n",
2994                                 query_fw_cfg->function_mode);
2995                 return -EINVAL;
2996         }
2997         if (rc != MBX_TIMEOUT)
2998                 mempool_free(mboxq, phba->mbox_mem_pool);
2999         return 0;
3000 }
3001
3002 /**
3003  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3004  * @phba: pointer to lpfc hba data structure.
3005  * @acqe_link: pointer to the async link completion queue entry.
3006  *
3007  * This routine is to parse the SLI4 link-attention link fault code and
3008  * translate it into the base driver's read link attention mailbox command
3009  * status.
3010  *
3011  * Return: Link-attention status in terms of base driver's coding.
3012  **/
3013 static uint16_t
3014 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3015                            struct lpfc_acqe_link *acqe_link)
3016 {
3017         uint16_t latt_fault;
3018
3019         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3020         case LPFC_ASYNC_LINK_FAULT_NONE:
3021         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3022         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3023                 latt_fault = 0;
3024                 break;
3025         default:
3026                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3027                                 "0398 Invalid link fault code: x%x\n",
3028                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3029                 latt_fault = MBXERR_ERROR;
3030                 break;
3031         }
3032         return latt_fault;
3033 }
3034
3035 /**
3036  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3037  * @phba: pointer to lpfc hba data structure.
3038  * @acqe_link: pointer to the async link completion queue entry.
3039  *
3040  * This routine is to parse the SLI4 link attention type and translate it
3041  * into the base driver's link attention type coding.
3042  *
3043  * Return: Link attention type in terms of base driver's coding.
3044  **/
3045 static uint8_t
3046 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3047                           struct lpfc_acqe_link *acqe_link)
3048 {
3049         uint8_t att_type;
3050
3051         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3052         case LPFC_ASYNC_LINK_STATUS_DOWN:
3053         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3054                 att_type = AT_LINK_DOWN;
3055                 break;
3056         case LPFC_ASYNC_LINK_STATUS_UP:
3057                 /* Ignore physical link up events - wait for logical link up */
3058                 att_type = AT_RESERVED;
3059                 break;
3060         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3061                 att_type = AT_LINK_UP;
3062                 break;
3063         default:
3064                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3065                                 "0399 Invalid link attention type: x%x\n",
3066                                 bf_get(lpfc_acqe_link_status, acqe_link));
3067                 att_type = AT_RESERVED;
3068                 break;
3069         }
3070         return att_type;
3071 }
3072
3073 /**
3074  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3075  * @phba: pointer to lpfc hba data structure.
3076  * @acqe_link: pointer to the async link completion queue entry.
3077  *
3078  * This routine is to parse the SLI4 link-attention link speed and translate
3079  * it into the base driver's link-attention link speed coding.
3080  *
3081  * Return: Link-attention link speed in terms of base driver's coding.
3082  **/
3083 static uint8_t
3084 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3085                                 struct lpfc_acqe_link *acqe_link)
3086 {
3087         uint8_t link_speed;
3088
3089         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3090         case LPFC_ASYNC_LINK_SPEED_ZERO:
3091                 link_speed = LA_UNKNW_LINK;
3092                 break;
3093         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3094                 link_speed = LA_UNKNW_LINK;
3095                 break;
3096         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3097                 link_speed = LA_UNKNW_LINK;
3098                 break;
3099         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3100                 link_speed = LA_1GHZ_LINK;
3101                 break;
3102         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3103                 link_speed = LA_10GHZ_LINK;
3104                 break;
3105         default:
3106                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3107                                 "0483 Invalid link-attention link speed: x%x\n",
3108                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3109                 link_speed = LA_UNKNW_LINK;
3110                 break;
3111         }
3112         return link_speed;
3113 }
3114
3115 /**
3116  * lpfc_sli4_async_link_evt - Process the asynchronous link event
3117  * @phba: pointer to lpfc hba data structure.
3118  * @acqe_link: pointer to the async link completion queue entry.
3119  *
3120  * This routine is to handle the SLI4 asynchronous link event.
3121  **/
3122 static void
3123 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3124                          struct lpfc_acqe_link *acqe_link)
3125 {
3126         struct lpfc_dmabuf *mp;
3127         LPFC_MBOXQ_t *pmb;
3128         MAILBOX_t *mb;
3129         READ_LA_VAR *la;
3130         uint8_t att_type;
3131
3132         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3133         if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3134                 return;
3135         phba->fcoe_eventtag = acqe_link->event_tag;
3136         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3137         if (!pmb) {
3138                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3139                                 "0395 The mboxq allocation failed\n");
3140                 return;
3141         }
3142         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3143         if (!mp) {
3144                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3145                                 "0396 The lpfc_dmabuf allocation failed\n");
3146                 goto out_free_pmb;
3147         }
3148         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3149         if (!mp->virt) {
3150                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3151                                 "0397 The mbuf allocation failed\n");
3152                 goto out_free_dmabuf;
3153         }
3154
3155         /* Cleanup any outstanding ELS commands */
3156         lpfc_els_flush_all_cmd(phba);
3157
3158         /* Block ELS IOCBs until we have done process link event */
3159         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3160
3161         /* Update link event statistics */
3162         phba->sli.slistat.link_event++;
3163
3164         /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3165         lpfc_read_la(phba, pmb, mp);
3166         pmb->vport = phba->pport;
3167
3168         /* Parse and translate status field */
3169         mb = &pmb->u.mb;
3170         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3171
3172         /* Parse and translate link attention fields */
3173         la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3174         la->eventTag = acqe_link->event_tag;
3175         la->attType = att_type;
3176         la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3177
3178         /* Fake the the following irrelvant fields */
3179         la->topology = TOPOLOGY_PT_PT;
3180         la->granted_AL_PA = 0;
3181         la->il = 0;
3182         la->pb = 0;
3183         la->fa = 0;
3184         la->mm = 0;
3185
3186         /* Keep the link status for extra SLI4 state machine reference */
3187         phba->sli4_hba.link_state.speed =
3188                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3189         phba->sli4_hba.link_state.duplex =
3190                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3191         phba->sli4_hba.link_state.status =
3192                                 bf_get(lpfc_acqe_link_status, acqe_link);
3193         phba->sli4_hba.link_state.physical =
3194                                 bf_get(lpfc_acqe_link_physical, acqe_link);
3195         phba->sli4_hba.link_state.fault =
3196                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3197         phba->sli4_hba.link_state.logical_speed =
3198                                 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3199
3200         /* Invoke the lpfc_handle_latt mailbox command callback function */
3201         lpfc_mbx_cmpl_read_la(phba, pmb);
3202
3203         return;
3204
3205 out_free_dmabuf:
3206         kfree(mp);
3207 out_free_pmb:
3208         mempool_free(pmb, phba->mbox_mem_pool);
3209 }
3210
3211 /**
3212  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3213  * @vport: pointer to vport data structure.
3214  *
3215  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3216  * response to a CVL event.
3217  *
3218  * Return the pointer to the ndlp with the vport if successful, otherwise
3219  * return NULL.
3220  **/
3221 static struct lpfc_nodelist *
3222 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3223 {
3224         struct lpfc_nodelist *ndlp;
3225         struct Scsi_Host *shost;
3226         struct lpfc_hba *phba;
3227
3228         if (!vport)
3229                 return NULL;
3230         phba = vport->phba;
3231         if (!phba)
3232                 return NULL;
3233         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3234         if (!ndlp) {
3235                 /* Cannot find existing Fabric ndlp, so allocate a new one */
3236                 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
3237                 if (!ndlp)
3238                         return 0;
3239                 lpfc_nlp_init(vport, ndlp, Fabric_DID);
3240                 /* Set the node type */
3241                 ndlp->nlp_type |= NLP_FABRIC;
3242                 /* Put ndlp onto node list */
3243                 lpfc_enqueue_node(vport, ndlp);
3244         } else if (!NLP_CHK_NODE_ACT(ndlp)) {
3245                 /* re-setup ndlp without removing from node list */
3246                 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
3247                 if (!ndlp)
3248                         return 0;
3249         }
3250         if (phba->pport->port_state < LPFC_FLOGI)
3251                 return NULL;
3252         /* If virtual link is not yet instantiated ignore CVL */
3253         if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC))
3254                 return NULL;
3255         shost = lpfc_shost_from_vport(vport);
3256         if (!shost)
3257                 return NULL;
3258         lpfc_linkdown_port(vport);
3259         lpfc_cleanup_pending_mbox(vport);
3260         spin_lock_irq(shost->host_lock);
3261         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3262         spin_unlock_irq(shost->host_lock);
3263
3264         return ndlp;
3265 }
3266
3267 /**
3268  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3269  * @vport: pointer to lpfc hba data structure.
3270  *
3271  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3272  * response to a FCF dead event.
3273  **/
3274 static void
3275 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3276 {
3277         struct lpfc_vport **vports;
3278         int i;
3279
3280         vports = lpfc_create_vport_work_array(phba);
3281         if (vports)
3282                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3283                         lpfc_sli4_perform_vport_cvl(vports[i]);
3284         lpfc_destroy_vport_work_array(phba, vports);
3285 }
3286
3287 /**
3288  * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3289  * @phba: pointer to lpfc hba data structure.
3290  * @acqe_link: pointer to the async fcoe completion queue entry.
3291  *
3292  * This routine is to handle the SLI4 asynchronous fcoe event.
3293  **/
3294 static void
3295 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3296                          struct lpfc_acqe_fcoe *acqe_fcoe)
3297 {
3298         uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3299         int rc;
3300         struct lpfc_vport *vport;
3301         struct lpfc_nodelist *ndlp;
3302         struct Scsi_Host  *shost;
3303         int active_vlink_present;
3304         struct lpfc_vport **vports;
3305         int i;
3306
3307         phba->fc_eventTag = acqe_fcoe->event_tag;
3308         phba->fcoe_eventtag = acqe_fcoe->event_tag;
3309         switch (event_type) {
3310         case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3311         case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3312                 if (event_type == LPFC_FCOE_EVENT_TYPE_NEW_FCF)
3313                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3314                                         LOG_DISCOVERY,
3315                                         "2546 New FCF event, evt_tag:x%x, "
3316                                         "index:x%x\n",
3317                                         acqe_fcoe->event_tag,
3318                                         acqe_fcoe->index);
3319                 else
3320                         lpfc_printf_log(phba, KERN_WARNING, LOG_FIP |
3321                                         LOG_DISCOVERY,
3322                                         "2788 FCF param modified event, "
3323                                         "evt_tag:x%x, index:x%x\n",
3324                                         acqe_fcoe->event_tag,
3325                                         acqe_fcoe->index);
3326                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3327                         /*
3328                          * During period of FCF discovery, read the FCF
3329                          * table record indexed by the event to update
3330                          * FCF roundrobin failover eligible FCF bmask.
3331                          */
3332                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3333                                         LOG_DISCOVERY,
3334                                         "2779 Read FCF (x%x) for updating "
3335                                         "roundrobin FCF 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_TS_INPROG) {
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 per async FCF "
3362                                 "event, evt_tag:x%x, 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 (x%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 (x%x) disconnected from network, "
3382                         "tag:x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3383                 /*
3384                  * If we are in the middle of FCF failover process, clear
3385                  * the corresponding FCF bit in the roundrobin bitmap.
3386                  */
3387                 spin_lock_irq(&phba->hbalock);
3388                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3389                         spin_unlock_irq(&phba->hbalock);
3390                         /* Update FLOGI FCF failover eligible FCF bmask */
3391                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3392                         break;
3393                 }
3394                 spin_unlock_irq(&phba->hbalock);
3395
3396                 /* If the event is not for currently used fcf do nothing */
3397                 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3398                         break;
3399
3400                 /*
3401                  * Otherwise, request the port to rediscover the entire FCF
3402                  * table for a fast recovery from case that the current FCF
3403                  * is no longer valid as we are not in the middle of FCF
3404                  * failover process already.
3405                  */
3406                 spin_lock_irq(&phba->hbalock);
3407                 /* Mark the fast failover process in progress */
3408                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3409                 spin_unlock_irq(&phba->hbalock);
3410
3411                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3412                                 "2771 Start FCF fast failover process due to "
3413                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3414                                 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3415                 rc = lpfc_sli4_redisc_fcf_table(phba);
3416                 if (rc) {
3417                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3418                                         LOG_DISCOVERY,
3419                                         "2772 Issue FCF rediscover mabilbox "
3420                                         "command failed, fail through to FCF "
3421                                         "dead event\n");
3422                         spin_lock_irq(&phba->hbalock);
3423                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3424                         spin_unlock_irq(&phba->hbalock);
3425                         /*
3426                          * Last resort will fail over by treating this
3427                          * as a link down to FCF registration.
3428                          */
3429                         lpfc_sli4_fcf_dead_failthrough(phba);
3430                 } else {
3431                         /* Reset FCF roundrobin bmask for new discovery */
3432                         memset(phba->fcf.fcf_rr_bmask, 0,
3433                                sizeof(*phba->fcf.fcf_rr_bmask));
3434                         /*
3435                          * Handling fast FCF failover to a DEAD FCF event is
3436                          * considered equalivant to receiving CVL to all vports.
3437                          */
3438                         lpfc_sli4_perform_all_vport_cvl(phba);
3439                 }
3440                 break;
3441         case LPFC_FCOE_EVENT_TYPE_CVL:
3442                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3443                         "2718 Clear Virtual Link Received for VPI 0x%x"
3444                         " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3445                 vport = lpfc_find_vport_by_vpid(phba,
3446                                 acqe_fcoe->index - phba->vpi_base);
3447                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3448                 if (!ndlp)
3449                         break;
3450                 active_vlink_present = 0;
3451
3452                 vports = lpfc_create_vport_work_array(phba);
3453                 if (vports) {
3454                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3455                                         i++) {
3456                                 if ((!(vports[i]->fc_flag &
3457                                         FC_VPORT_CVL_RCVD)) &&
3458                                         (vports[i]->port_state > LPFC_FDISC)) {
3459                                         active_vlink_present = 1;
3460                                         break;
3461                                 }
3462                         }
3463                         lpfc_destroy_vport_work_array(phba, vports);
3464                 }
3465
3466                 if (active_vlink_present) {
3467                         /*
3468                          * If there are other active VLinks present,
3469                          * re-instantiate the Vlink using FDISC.
3470                          */
3471                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3472                         shost = lpfc_shost_from_vport(vport);
3473                         spin_lock_irq(shost->host_lock);
3474                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3475                         spin_unlock_irq(shost->host_lock);
3476                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3477                         vport->port_state = LPFC_FDISC;
3478                 } else {
3479                         /*
3480                          * Otherwise, we request port to rediscover
3481                          * the entire FCF table for a fast recovery
3482                          * from possible case that the current FCF
3483                          * is no longer valid if we are not already
3484                          * in the FCF failover process.
3485                          */
3486                         spin_lock_irq(&phba->hbalock);
3487                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3488                                 spin_unlock_irq(&phba->hbalock);
3489                                 break;
3490                         }
3491                         /* Mark the fast failover process in progress */
3492                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3493                         spin_unlock_irq(&phba->hbalock);
3494                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3495                                         LOG_DISCOVERY,
3496                                         "2773 Start FCF failover per CVL, "
3497                                         "evt_tag:x%x\n", acqe_fcoe->event_tag);
3498                         rc = lpfc_sli4_redisc_fcf_table(phba);
3499                         if (rc) {
3500                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3501                                                 LOG_DISCOVERY,
3502                                                 "2774 Issue FCF rediscover "
3503                                                 "mabilbox command failed, "
3504                                                 "through to CVL event\n");
3505                                 spin_lock_irq(&phba->hbalock);
3506                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3507                                 spin_unlock_irq(&phba->hbalock);
3508                                 /*
3509                                  * Last resort will be re-try on the
3510                                  * the current registered FCF entry.
3511                                  */
3512                                 lpfc_retry_pport_discovery(phba);
3513                         } else
3514                                 /*
3515                                  * Reset FCF roundrobin bmask for new
3516                                  * discovery.
3517                                  */
3518                                 memset(phba->fcf.fcf_rr_bmask, 0,
3519                                        sizeof(*phba->fcf.fcf_rr_bmask));
3520                 }
3521                 break;
3522         default:
3523                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3524                         "0288 Unknown FCoE event type 0x%x event tag "
3525                         "0x%x\n", event_type, acqe_fcoe->event_tag);
3526                 break;
3527         }
3528 }
3529
3530 /**
3531  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3532  * @phba: pointer to lpfc hba data structure.
3533  * @acqe_link: pointer to the async dcbx completion queue entry.
3534  *
3535  * This routine is to handle the SLI4 asynchronous dcbx event.
3536  **/
3537 static void
3538 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3539                          struct lpfc_acqe_dcbx *acqe_dcbx)
3540 {
3541         phba->fc_eventTag = acqe_dcbx->event_tag;
3542         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3543                         "0290 The SLI4 DCBX asynchronous event is not "
3544                         "handled yet\n");
3545 }
3546
3547 /**
3548  * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event
3549  * @phba: pointer to lpfc hba data structure.
3550  * @acqe_link: pointer to the async grp5 completion queue entry.
3551  *
3552  * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event
3553  * is an asynchronous notified of a logical link speed change.  The Port
3554  * reports the logical link speed in units of 10Mbps.
3555  **/
3556 static void
3557 lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba,
3558                          struct lpfc_acqe_grp5 *acqe_grp5)
3559 {
3560         uint16_t prev_ll_spd;
3561
3562         phba->fc_eventTag = acqe_grp5->event_tag;
3563         phba->fcoe_eventtag = acqe_grp5->event_tag;
3564         prev_ll_spd = phba->sli4_hba.link_state.logical_speed;
3565         phba->sli4_hba.link_state.logical_speed =
3566                 (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5));
3567         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3568                         "2789 GRP5 Async Event: Updating logical link speed "
3569                         "from %dMbps to %dMbps\n", (prev_ll_spd * 10),
3570                         (phba->sli4_hba.link_state.logical_speed*10));
3571 }
3572
3573 /**
3574  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3575  * @phba: pointer to lpfc hba data structure.
3576  *
3577  * This routine is invoked by the worker thread to process all the pending
3578  * SLI4 asynchronous events.
3579  **/
3580 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3581 {
3582         struct lpfc_cq_event *cq_event;
3583
3584         /* First, declare the async event has been handled */
3585         spin_lock_irq(&phba->hbalock);
3586         phba->hba_flag &= ~ASYNC_EVENT;
3587         spin_unlock_irq(&phba->hbalock);
3588         /* Now, handle all the async events */
3589         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3590                 /* Get the first event from the head of the event queue */
3591                 spin_lock_irq(&phba->hbalock);
3592                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3593                                  cq_event, struct lpfc_cq_event, list);
3594                 spin_unlock_irq(&phba->hbalock);
3595                 /* Process the asynchronous event */
3596                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3597                 case LPFC_TRAILER_CODE_LINK:
3598                         lpfc_sli4_async_link_evt(phba,
3599                                                  &cq_event->cqe.acqe_link);
3600                         break;
3601                 case LPFC_TRAILER_CODE_FCOE:
3602                         lpfc_sli4_async_fcoe_evt(phba,
3603                                                  &cq_event->cqe.acqe_fcoe);
3604                         break;
3605                 case LPFC_TRAILER_CODE_DCBX:
3606                         lpfc_sli4_async_dcbx_evt(phba,
3607                                                  &cq_event->cqe.acqe_dcbx);
3608                         break;
3609                 case LPFC_TRAILER_CODE_GRP5:
3610                         lpfc_sli4_async_grp5_evt(phba,
3611                                                  &cq_event->cqe.acqe_grp5);
3612                         break;
3613                 default:
3614                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3615                                         "1804 Invalid asynchrous event code: "
3616                                         "x%x\n", bf_get(lpfc_trailer_code,
3617                                         &cq_event->cqe.mcqe_cmpl));
3618                         break;
3619                 }
3620                 /* Free the completion event processed to the free pool */
3621                 lpfc_sli4_cq_event_release(phba, cq_event);
3622         }
3623 }
3624
3625 /**
3626  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3627  * @phba: pointer to lpfc hba data structure.
3628  *
3629  * This routine is invoked by the worker thread to process FCF table
3630  * rediscovery pending completion event.
3631  **/
3632 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3633 {
3634         int rc;
3635
3636         spin_lock_irq(&phba->hbalock);
3637         /* Clear FCF rediscovery timeout event */
3638         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3639         /* Clear driver fast failover FCF record flag */
3640         phba->fcf.failover_rec.flag = 0;
3641         /* Set state for FCF fast failover */
3642         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3643         spin_unlock_irq(&phba->hbalock);
3644
3645         /* Scan FCF table from the first entry to re-discover SAN */
3646         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3647                         "2777 Start post-quiescent FCF table scan\n");
3648         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3649         if (rc)
3650                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3651                                 "2747 Issue FCF scan read FCF mailbox "
3652                                 "command failed 0x%x\n", rc);
3653 }
3654
3655 /**
3656  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3657  * @phba: pointer to lpfc hba data structure.
3658  * @dev_grp: The HBA PCI-Device group number.
3659  *
3660  * This routine is invoked to set up the per HBA PCI-Device group function
3661  * API jump table entries.
3662  *
3663  * Return: 0 if success, otherwise -ENODEV
3664  **/
3665 int
3666 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3667 {
3668         int rc;
3669
3670         /* Set up lpfc PCI-device group */
3671         phba->pci_dev_grp = dev_grp;
3672
3673         /* The LPFC_PCI_DEV_OC uses SLI4 */
3674         if (dev_grp == LPFC_PCI_DEV_OC)
3675                 phba->sli_rev = LPFC_SLI_REV4;
3676
3677         /* Set up device INIT API function jump table */
3678         rc = lpfc_init_api_table_setup(phba, dev_grp);
3679         if (rc)
3680                 return -ENODEV;
3681         /* Set up SCSI API function jump table */
3682         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3683         if (rc)
3684                 return -ENODEV;
3685         /* Set up SLI API function jump table */
3686         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3687         if (rc)
3688                 return -ENODEV;
3689         /* Set up MBOX API function jump table */
3690         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3691         if (rc)
3692                 return -ENODEV;
3693
3694         return 0;
3695 }
3696
3697 /**
3698  * lpfc_log_intr_mode - Log the active interrupt mode
3699  * @phba: pointer to lpfc hba data structure.
3700  * @intr_mode: active interrupt mode adopted.
3701  *
3702  * This routine it invoked to log the currently used active interrupt mode
3703  * to the device.
3704  **/
3705 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3706 {
3707         switch (intr_mode) {
3708         case 0:
3709                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3710                                 "0470 Enable INTx interrupt mode.\n");
3711                 break;
3712         case 1:
3713                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3714                                 "0481 Enabled MSI interrupt mode.\n");
3715                 break;
3716         case 2:
3717                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3718                                 "0480 Enabled MSI-X interrupt mode.\n");
3719                 break;
3720         default:
3721                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3722                                 "0482 Illegal interrupt mode.\n");
3723                 break;
3724         }
3725         return;
3726 }
3727
3728 /**
3729  * lpfc_enable_pci_dev - Enable a generic PCI device.
3730  * @phba: pointer to lpfc hba data structure.
3731  *
3732  * This routine is invoked to enable the PCI device that is common to all
3733  * PCI devices.
3734  *
3735  * Return codes
3736  *      0 - successful
3737  *      other values - error
3738  **/
3739 static int
3740 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3741 {
3742         struct pci_dev *pdev;
3743         int bars;
3744
3745         /* Obtain PCI device reference */
3746         if (!phba->pcidev)
3747                 goto out_error;
3748         else
3749                 pdev = phba->pcidev;
3750         /* Select PCI BARs */
3751         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3752         /* Enable PCI device */
3753         if (pci_enable_device_mem(pdev))
3754                 goto out_error;
3755         /* Request PCI resource for the device */
3756         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3757                 goto out_disable_device;
3758         /* Set up device as PCI master and save state for EEH */
3759         pci_set_master(pdev);
3760         pci_try_set_mwi(pdev);
3761         pci_save_state(pdev);
3762
3763         return 0;
3764
3765 out_disable_device:
3766         pci_disable_device(pdev);
3767 out_error:
3768         return -ENODEV;
3769 }
3770
3771 /**
3772  * lpfc_disable_pci_dev - Disable a generic PCI device.
3773  * @phba: pointer to lpfc hba data structure.
3774  *
3775  * This routine is invoked to disable the PCI device that is common to all
3776  * PCI devices.
3777  **/
3778 static void
3779 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3780 {
3781         struct pci_dev *pdev;
3782         int bars;
3783
3784         /* Obtain PCI device reference */
3785         if (!phba->pcidev)
3786                 return;
3787         else
3788                 pdev = phba->pcidev;
3789         /* Select PCI BARs */
3790         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3791         /* Release PCI resource and disable PCI device */
3792         pci_release_selected_regions(pdev, bars);
3793         pci_disable_device(pdev);
3794         /* Null out PCI private reference to driver */
3795         pci_set_drvdata(pdev, NULL);
3796
3797         return;
3798 }
3799
3800 /**
3801  * lpfc_reset_hba - Reset a hba
3802  * @phba: pointer to lpfc hba data structure.
3803  *
3804  * This routine is invoked to reset a hba device. It brings the HBA
3805  * offline, performs a board restart, and then brings the board back
3806  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3807  * on outstanding mailbox commands.
3808  **/
3809 void
3810 lpfc_reset_hba(struct lpfc_hba *phba)
3811 {
3812         /* If resets are disabled then set error state and return. */
3813         if (!phba->cfg_enable_hba_reset) {
3814                 phba->link_state = LPFC_HBA_ERROR;
3815                 return;
3816         }
3817         lpfc_offline_prep(phba);
3818         lpfc_offline(phba);
3819         lpfc_sli_brdrestart(phba);
3820         lpfc_online(phba);
3821         lpfc_unblock_mgmt_io(phba);
3822 }
3823
3824 /**
3825  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3826  * @phba: pointer to lpfc hba data structure.
3827  *
3828  * This routine is invoked to set up the driver internal resources specific to
3829  * support the SLI-3 HBA device it attached to.
3830  *
3831  * Return codes
3832  *      0 - successful
3833  *      other values - error
3834  **/
3835 static int
3836 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3837 {
3838         struct lpfc_sli *psli;
3839
3840         /*
3841          * Initialize timers used by driver
3842          */
3843
3844         /* Heartbeat timer */
3845         init_timer(&phba->hb_tmofunc);
3846         phba->hb_tmofunc.function = lpfc_hb_timeout;
3847         phba->hb_tmofunc.data = (unsigned long)phba;
3848
3849         psli = &phba->sli;
3850         /* MBOX heartbeat timer */
3851         init_timer(&psli->mbox_tmo);
3852         psli->mbox_tmo.function = lpfc_mbox_timeout;
3853         psli->mbox_tmo.data = (unsigned long) phba;
3854         /* FCP polling mode timer */
3855         init_timer(&phba->fcp_poll_timer);
3856         phba->fcp_poll_timer.function = lpfc_poll_timeout;
3857         phba->fcp_poll_timer.data = (unsigned long) phba;
3858         /* Fabric block timer */
3859         init_timer(&phba->fabric_block_timer);
3860         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3861         phba->fabric_block_timer.data = (unsigned long) phba;
3862         /* EA polling mode timer */
3863         init_timer(&phba->eratt_poll);
3864         phba->eratt_poll.function = lpfc_poll_eratt;
3865         phba->eratt_poll.data = (unsigned long) phba;
3866
3867         /* Host attention work mask setup */
3868         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3869         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3870
3871         /* Get all the module params for configuring this host */
3872         lpfc_get_cfgparam(phba);
3873         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
3874                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
3875                 /* check for menlo minimum sg count */
3876                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT)
3877                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
3878         }
3879
3880         /*
3881          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3882          * used to create the sg_dma_buf_pool must be dynamically calculated.
3883          * 2 segments are added since the IOCB needs a command and response bde.
3884          */
3885         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3886                 sizeof(struct fcp_rsp) +
3887                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3888
3889         if (phba->cfg_enable_bg) {
3890                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3891                 phba->cfg_sg_dma_buf_size +=
3892                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3893         }
3894
3895         /* Also reinitialize the host templates with new values. */
3896         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3897         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3898
3899         phba->max_vpi = LPFC_MAX_VPI;
3900         /* This will be set to correct value after config_port mbox */
3901         phba->max_vports = 0;
3902
3903         /*
3904          * Initialize the SLI Layer to run with lpfc HBAs.
3905          */
3906         lpfc_sli_setup(phba);
3907         lpfc_sli_queue_setup(phba);
3908
3909         /* Allocate device driver memory */
3910         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3911                 return -ENOMEM;
3912
3913         return 0;
3914 }
3915
3916 /**
3917  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3918  * @phba: pointer to lpfc hba data structure.
3919  *
3920  * This routine is invoked to unset the driver internal resources set up
3921  * specific for supporting the SLI-3 HBA device it attached to.
3922  **/
3923 static void
3924 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3925 {
3926         /* Free device driver memory allocated */
3927         lpfc_mem_free_all(phba);
3928
3929         return;
3930 }
3931
3932 /**
3933  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3934  * @phba: pointer to lpfc hba data structure.
3935  *
3936  * This routine is invoked to set up the driver internal resources specific to
3937  * support the SLI-4 HBA device it attached to.
3938  *
3939  * Return codes
3940  *      0 - successful
3941  *      other values - error
3942  **/
3943 static int
3944 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3945 {
3946         struct lpfc_sli *psli;
3947         LPFC_MBOXQ_t *mboxq;
3948         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3949         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3950         struct lpfc_mqe *mqe;
3951         int longs;
3952
3953         /* Before proceed, wait for POST done and device ready */
3954         rc = lpfc_sli4_post_status_check(phba);
3955         if (rc)
3956                 return -ENODEV;
3957
3958         /*
3959          * Initialize timers used by driver
3960          */
3961
3962         /* Heartbeat timer */
3963         init_timer(&phba->hb_tmofunc);
3964         phba->hb_tmofunc.function = lpfc_hb_timeout;
3965         phba->hb_tmofunc.data = (unsigned long)phba;
3966
3967         psli = &phba->sli;
3968         /* MBOX heartbeat timer */
3969         init_timer(&psli->mbox_tmo);
3970         psli->mbox_tmo.function = lpfc_mbox_timeout;
3971         psli->mbox_tmo.data = (unsigned long) phba;
3972         /* Fabric block timer */
3973         init_timer(&phba->fabric_block_timer);
3974         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3975         phba->fabric_block_timer.data = (unsigned long) phba;
3976         /* EA polling mode timer */
3977         init_timer(&phba->eratt_poll);
3978         phba->eratt_poll.function = lpfc_poll_eratt;
3979         phba->eratt_poll.data = (unsigned long) phba;
3980         /* FCF rediscover timer */
3981         init_timer(&phba->fcf.redisc_wait);
3982         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3983         phba->fcf.redisc_wait.data = (unsigned long)phba;
3984
3985         /*
3986          * We need to do a READ_CONFIG mailbox command here before
3987          * calling lpfc_get_cfgparam. For VFs this will report the
3988          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3989          * All of the resources allocated
3990          * for this Port are tied to these values.
3991          */
3992         /* Get all the module params for configuring this host */
3993         lpfc_get_cfgparam(phba);
3994         phba->max_vpi = LPFC_MAX_VPI;
3995         /* This will be set to correct value after the read_config mbox */
3996         phba->max_vports = 0;
3997
3998         /* Program the default value of vlan_id and fc_map */
3999         phba->valid_vlan = 0;
4000         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4001         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4002         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4003
4004         /*
4005          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
4006          * used to create the sg_dma_buf_pool must be dynamically calculated.
4007          * 2 segments are added since the IOCB needs a command and response bde.
4008          * To insure that the scsi sgl does not cross a 4k page boundary only
4009          * sgl sizes of must be a power of 2.
4010          */
4011         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
4012                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
4013         /* Feature Level 1 hardware is limited to 2 pages */
4014         if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
4015              LPFC_SLI_INTF_FEATURELEVEL1_1))
4016                 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
4017         else
4018                 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
4019         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
4020              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
4021              dma_buf_size = dma_buf_size << 1)
4022                 ;
4023         if (dma_buf_size == max_buf_size)
4024                 phba->cfg_sg_seg_cnt = (dma_buf_size -
4025                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
4026                         (2 * sizeof(struct sli4_sge))) /
4027                                 sizeof(struct sli4_sge);
4028         phba->cfg_sg_dma_buf_size = dma_buf_size;
4029
4030         /* Initialize buffer queue management fields */
4031         hbq_count = lpfc_sli_hbq_count();
4032         for (i = 0; i < hbq_count; ++i)
4033                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
4034         INIT_LIST_HEAD(&phba->rb_pend_list);
4035         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
4036         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
4037
4038         /*
4039          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
4040          */
4041         /* Initialize the Abort scsi buffer list used by driver */
4042         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
4043         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
4044         /* This abort list used by worker thread */
4045         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
4046
4047         /*
4048          * Initialize dirver internal slow-path work queues
4049          */
4050
4051         /* Driver internel slow-path CQ Event pool */
4052         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
4053         /* Response IOCB work queue list */
4054         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
4055         /* Asynchronous event CQ Event work queue list */
4056         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
4057         /* Fast-path XRI aborted CQ Event work queue list */
4058         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
4059         /* Slow-path XRI aborted CQ Event work queue list */
4060         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
4061         /* Receive queue CQ Event work queue list */
4062         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
4063
4064         /* Initialize the driver internal SLI layer lists. */
4065         lpfc_sli_setup(phba);
4066         lpfc_sli_queue_setup(phba);
4067
4068         /* Allocate device driver memory */
4069         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4070         if (rc)
4071                 return -ENOMEM;
4072
4073         /* Create the bootstrap mailbox command */
4074         rc = lpfc_create_bootstrap_mbox(phba);
4075         if (unlikely(rc))
4076                 goto out_free_mem;
4077
4078         /* Set up the host's endian order with the device. */
4079         rc = lpfc_setup_endian_order(phba);
4080         if (unlikely(rc))
4081                 goto out_free_bsmbx;
4082
4083         rc = lpfc_sli4_fw_cfg_check(phba);
4084         if (unlikely(rc))
4085                 goto out_free_bsmbx;
4086
4087         /* Set up the hba's configuration parameters. */
4088         rc = lpfc_sli4_read_config(phba);
4089         if (unlikely(rc))
4090                 goto out_free_bsmbx;
4091
4092         /* Perform a function reset */
4093         rc = lpfc_pci_function_reset(phba);
4094         if (unlikely(rc))
4095                 goto out_free_bsmbx;
4096
4097         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4098                                                        GFP_KERNEL);
4099         if (!mboxq) {
4100                 rc = -ENOMEM;
4101                 goto out_free_bsmbx;
4102         }
4103
4104         /* Get the Supported Pages. It is always available. */
4105         lpfc_supported_pages(mboxq);
4106         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4107         if (unlikely(rc)) {
4108                 rc = -EIO;
4109                 mempool_free(mboxq, phba->mbox_mem_pool);
4110                 goto out_free_bsmbx;
4111         }
4112
4113         mqe = &mboxq->u.mqe;
4114         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4115                LPFC_MAX_SUPPORTED_PAGES);
4116         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4117                 switch (pn_page[i]) {
4118                 case LPFC_SLI4_PARAMETERS:
4119                         phba->sli4_hba.pc_sli4_params.supported = 1;
4120                         break;
4121                 default:
4122                         break;
4123                 }
4124         }
4125
4126         /* Read the port's SLI4 Parameters capabilities if supported. */
4127         if (phba->sli4_hba.pc_sli4_params.supported)
4128                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4129         mempool_free(mboxq, phba->mbox_mem_pool);
4130         if (rc) {
4131                 rc = -EIO;
4132                 goto out_free_bsmbx;
4133         }
4134         /* Create all the SLI4 queues */
4135         rc = lpfc_sli4_queue_create(phba);
4136         if (rc)
4137                 goto out_free_bsmbx;
4138
4139         /* Create driver internal CQE event pool */
4140         rc = lpfc_sli4_cq_event_pool_create(phba);
4141         if (rc)
4142                 goto out_destroy_queue;
4143
4144         /* Initialize and populate the iocb list per host */
4145         rc = lpfc_init_sgl_list(phba);
4146         if (rc) {
4147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4148                                 "1400 Failed to initialize sgl list.\n");
4149                 goto out_destroy_cq_event_pool;
4150         }
4151         rc = lpfc_init_active_sgl_array(phba);
4152         if (rc) {
4153                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4154                                 "1430 Failed to initialize sgl list.\n");
4155                 goto out_free_sgl_list;
4156         }
4157
4158         rc = lpfc_sli4_init_rpi_hdrs(phba);
4159         if (rc) {
4160                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4161                                 "1432 Failed to initialize rpi headers.\n");
4162                 goto out_free_active_sgl;
4163         }
4164
4165         /* Allocate eligible FCF bmask memory for FCF roundrobin failover */
4166         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4167         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4168                                          GFP_KERNEL);
4169         if (!phba->fcf.fcf_rr_bmask) {
4170                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4171                                 "2759 Failed allocate memory for FCF round "
4172                                 "robin failover bmask\n");
4173                 goto out_remove_rpi_hdrs;
4174         }
4175
4176         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4177                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4178         if (!phba->sli4_hba.fcp_eq_hdl) {
4179                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4180                                 "2572 Failed allocate memory for fast-path "
4181                                 "per-EQ handle array\n");
4182                 goto out_free_fcf_rr_bmask;
4183         }
4184
4185         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4186                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4187         if (!phba->sli4_hba.msix_entries) {
4188                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4189                                 "2573 Failed allocate memory for msi-x "
4190                                 "interrupt vector entries\n");
4191                 goto out_free_fcp_eq_hdl;
4192         }
4193
4194         return rc;
4195
4196 out_free_fcp_eq_hdl:
4197         kfree(phba->sli4_hba.fcp_eq_hdl);
4198 out_free_fcf_rr_bmask:
4199         kfree(phba->fcf.fcf_rr_bmask);
4200 out_remove_rpi_hdrs:
4201         lpfc_sli4_remove_rpi_hdrs(phba);
4202 out_free_active_sgl:
4203         lpfc_free_active_sgl(phba);
4204 out_free_sgl_list:
4205         lpfc_free_sgl_list(phba);
4206 out_destroy_cq_event_pool:
4207         lpfc_sli4_cq_event_pool_destroy(phba);
4208 out_destroy_queue:
4209         lpfc_sli4_queue_destroy(phba);
4210 out_free_bsmbx:
4211         lpfc_destroy_bootstrap_mbox(phba);
4212 out_free_mem:
4213         lpfc_mem_free(phba);
4214         return rc;
4215 }
4216
4217 /**
4218  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4219  * @phba: pointer to lpfc hba data structure.
4220  *
4221  * This routine is invoked to unset the driver internal resources set up
4222  * specific for supporting the SLI-4 HBA device it attached to.
4223  **/
4224 static void
4225 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4226 {
4227         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4228
4229         /* Free memory allocated for msi-x interrupt vector entries */
4230         kfree(phba->sli4_hba.msix_entries);
4231
4232         /* Free memory allocated for fast-path work queue handles */
4233         kfree(phba->sli4_hba.fcp_eq_hdl);
4234
4235         /* Free the allocated rpi headers. */
4236         lpfc_sli4_remove_rpi_hdrs(phba);
4237         lpfc_sli4_remove_rpis(phba);
4238
4239         /* Free eligible FCF index bmask */
4240         kfree(phba->fcf.fcf_rr_bmask);
4241
4242         /* Free the ELS sgl list */
4243         lpfc_free_active_sgl(phba);
4244         lpfc_free_sgl_list(phba);
4245
4246         /* Free the SCSI sgl management array */
4247         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4248
4249         /* Free the SLI4 queues */
4250         lpfc_sli4_queue_destroy(phba);
4251
4252         /* Free the completion queue EQ event pool */
4253         lpfc_sli4_cq_event_release_all(phba);
4254         lpfc_sli4_cq_event_pool_destroy(phba);
4255
4256         /* Free the bsmbx region. */
4257         lpfc_destroy_bootstrap_mbox(phba);
4258
4259         /* Free the SLI Layer memory with SLI4 HBAs */
4260         lpfc_mem_free_all(phba);
4261
4262         /* Free the current connect table */
4263         list_for_each_entry_safe(conn_entry, next_conn_entry,
4264                 &phba->fcf_conn_rec_list, list) {
4265                 list_del_init(&conn_entry->list);
4266                 kfree(conn_entry);
4267         }
4268
4269         return;
4270 }
4271
4272 /**
4273  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4274  * @phba: The hba struct for which this call is being executed.
4275  * @dev_grp: The HBA PCI-Device group number.
4276  *
4277  * This routine sets up the device INIT interface API function jump table
4278  * in @phba struct.
4279  *
4280  * Returns: 0 - success, -ENODEV - failure.
4281  **/
4282 int
4283 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4284 {
4285         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4286         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4287         switch (dev_grp) {
4288         case LPFC_PCI_DEV_LP:
4289                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4290                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4291                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4292                 break;
4293         case LPFC_PCI_DEV_OC:
4294                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4295                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4296                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4297                 break;
4298         default:
4299                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4300                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4301                                 dev_grp);
4302                 return -ENODEV;
4303                 break;
4304         }
4305         return 0;
4306 }
4307
4308 /**
4309  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4310  * @phba: pointer to lpfc hba data structure.
4311  *
4312  * This routine is invoked to set up the driver internal resources before the
4313  * device specific resource setup to support the HBA device it attached to.
4314  *
4315  * Return codes
4316  *      0 - successful
4317  *      other values - error
4318  **/
4319 static int
4320 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4321 {
4322         /*
4323          * Driver resources common to all SLI revisions
4324          */
4325         atomic_set(&phba->fast_event_count, 0);
4326         spin_lock_init(&phba->hbalock);
4327
4328         /* Initialize ndlp management spinlock */
4329         spin_lock_init(&phba->ndlp_lock);
4330
4331         INIT_LIST_HEAD(&phba->port_list);
4332         INIT_LIST_HEAD(&phba->work_list);
4333         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4334
4335         /* Initialize the wait queue head for the kernel thread */
4336         init_waitqueue_head(&phba->work_waitq);
4337
4338         /* Initialize the scsi buffer list used by driver for scsi IO */
4339         spin_lock_init(&phba->scsi_buf_list_lock);
4340         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4341
4342         /* Initialize the fabric iocb list */
4343         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4344
4345         /* Initialize list to save ELS buffers */
4346         INIT_LIST_HEAD(&phba->elsbuf);
4347
4348         /* Initialize FCF connection rec list */
4349         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4350
4351         return 0;
4352 }
4353
4354 /**
4355  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4356  * @phba: pointer to lpfc hba data structure.
4357  *
4358  * This routine is invoked to set up the driver internal resources after the
4359  * device specific resource setup to support the HBA device it attached to.
4360  *
4361  * Return codes
4362  *      0 - successful
4363  *      other values - error
4364  **/
4365 static int
4366 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4367 {
4368         int error;
4369
4370         /* Startup the kernel thread for this host adapter. */
4371         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4372                                           "lpfc_worker_%d", phba->brd_no);
4373         if (IS_ERR(phba->worker_thread)) {
4374                 error = PTR_ERR(phba->worker_thread);
4375                 return error;
4376         }
4377
4378         return 0;
4379 }
4380
4381 /**
4382  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4383  * @phba: pointer to lpfc hba data structure.
4384  *
4385  * This routine is invoked to unset the driver internal resources set up after
4386  * the device specific resource setup for supporting the HBA device it
4387  * attached to.
4388  **/
4389 static void
4390 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4391 {
4392         /* Stop kernel worker thread */
4393         kthread_stop(phba->worker_thread);
4394 }
4395
4396 /**
4397  * lpfc_free_iocb_list - Free iocb list.
4398  * @phba: pointer to lpfc hba data structure.
4399  *
4400  * This routine is invoked to free the driver's IOCB list and memory.
4401  **/
4402 static void
4403 lpfc_free_iocb_list(struct lpfc_hba *phba)
4404 {
4405         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4406
4407         spin_lock_irq(&phba->hbalock);
4408         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4409                                  &phba->lpfc_iocb_list, list) {
4410                 list_del(&iocbq_entry->list);
4411                 kfree(iocbq_entry);
4412                 phba->total_iocbq_bufs--;
4413         }
4414         spin_unlock_irq(&phba->hbalock);
4415
4416         return;
4417 }
4418
4419 /**
4420  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4421  * @phba: pointer to lpfc hba data structure.
4422  *
4423  * This routine is invoked to allocate and initizlize the driver's IOCB
4424  * list and set up the IOCB tag array accordingly.
4425  *
4426  * Return codes
4427  *      0 - successful
4428  *      other values - error
4429  **/
4430 static int
4431 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4432 {
4433         struct lpfc_iocbq *iocbq_entry = NULL;
4434         uint16_t iotag;
4435         int i;
4436
4437         /* Initialize and populate the iocb list per host.  */
4438         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4439         for (i = 0; i < iocb_count; i++) {
4440                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4441                 if (iocbq_entry == NULL) {
4442                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4443                                 "expected %d count. Unloading driver.\n",
4444                                 __func__, i, LPFC_IOCB_LIST_CNT);
4445                         goto out_free_iocbq;
4446                 }
4447
4448                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4449                 if (iotag == 0) {
4450                         kfree(iocbq_entry);
4451                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4452                                 "Unloading driver.\n", __func__);
4453                         goto out_free_iocbq;
4454                 }
4455                 iocbq_entry->sli4_xritag = NO_XRI;
4456
4457                 spin_lock_irq(&phba->hbalock);
4458                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4459                 phba->total_iocbq_bufs++;
4460                 spin_unlock_irq(&phba->hbalock);
4461         }
4462
4463         return 0;
4464
4465 out_free_iocbq:
4466         lpfc_free_iocb_list(phba);
4467
4468         return -ENOMEM;
4469 }
4470
4471 /**
4472  * lpfc_free_sgl_list - Free sgl list.
4473  * @phba: pointer to lpfc hba data structure.
4474  *
4475  * This routine is invoked to free the driver's sgl list and memory.
4476  **/
4477 static void
4478 lpfc_free_sgl_list(struct lpfc_hba *phba)
4479 {
4480         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4481         LIST_HEAD(sglq_list);
4482
4483         spin_lock_irq(&phba->hbalock);
4484         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4485         spin_unlock_irq(&phba->hbalock);
4486
4487         list_for_each_entry_safe(sglq_entry, sglq_next,
4488                                  &sglq_list, list) {
4489                 list_del(&sglq_entry->list);
4490                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4491                 kfree(sglq_entry);
4492                 phba->sli4_hba.total_sglq_bufs--;
4493         }
4494         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4495 }
4496
4497 /**
4498  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4499  * @phba: pointer to lpfc hba data structure.
4500  *
4501  * This routine is invoked to allocate the driver's active sgl memory.
4502  * This array will hold the sglq_entry's for active IOs.
4503  **/
4504 static int
4505 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4506 {
4507         int size;
4508         size = sizeof(struct lpfc_sglq *);
4509         size *= phba->sli4_hba.max_cfg_param.max_xri;
4510
4511         phba->sli4_hba.lpfc_sglq_active_list =
4512                 kzalloc(size, GFP_KERNEL);
4513         if (!phba->sli4_hba.lpfc_sglq_active_list)
4514                 return -ENOMEM;
4515         return 0;
4516 }
4517
4518 /**
4519  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4520  * @phba: pointer to lpfc hba data structure.
4521  *
4522  * This routine is invoked to walk through the array of active sglq entries
4523  * and free all of the resources.
4524  * This is just a place holder for now.
4525  **/
4526 static void
4527 lpfc_free_active_sgl(struct lpfc_hba *phba)
4528 {
4529         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4530 }
4531
4532 /**
4533  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4534  * @phba: pointer to lpfc hba data structure.
4535  *
4536  * This routine is invoked to allocate and initizlize the driver's sgl
4537  * list and set up the sgl xritag tag array accordingly.
4538  *
4539  * Return codes
4540  *      0 - successful
4541  *      other values - error
4542  **/
4543 static int
4544 lpfc_init_sgl_list(struct lpfc_hba *phba)
4545 {
4546         struct lpfc_sglq *sglq_entry = NULL;
4547         int i;
4548         int els_xri_cnt;
4549
4550         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4551         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4552                                 "2400 lpfc_init_sgl_list els %d.\n",
4553                                 els_xri_cnt);
4554         /* Initialize and populate the sglq list per host/VF. */
4555         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4556         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4557
4558         /* Sanity check on XRI management */
4559         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4560                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4561                                 "2562 No room left for SCSI XRI allocation: "
4562                                 "max_xri=%d, els_xri=%d\n",
4563                                 phba->sli4_hba.max_cfg_param.max_xri,
4564                                 els_xri_cnt);
4565                 return -ENOMEM;
4566         }
4567
4568         /* Allocate memory for the ELS XRI management array */
4569         phba->sli4_hba.lpfc_els_sgl_array =
4570                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4571                         GFP_KERNEL);
4572
4573         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4574                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4575                                 "2401 Failed to allocate memory for ELS "
4576                                 "XRI management array of size %d.\n",
4577                                 els_xri_cnt);
4578                 return -ENOMEM;
4579         }
4580
4581         /* Keep the SCSI XRI into the XRI management array */
4582         phba->sli4_hba.scsi_xri_max =
4583                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4584         phba->sli4_hba.scsi_xri_cnt = 0;
4585
4586         phba->sli4_hba.lpfc_scsi_psb_array =
4587                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4588                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4589
4590         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4591                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4592                                 "2563 Failed to allocate memory for SCSI "
4593                                 "XRI management array of size %d.\n",
4594                                 phba->sli4_hba.scsi_xri_max);
4595                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4596                 return -ENOMEM;
4597         }
4598
4599         for (i = 0; i < els_xri_cnt; i++) {
4600                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4601                 if (sglq_entry == NULL) {
4602                         printk(KERN_ERR "%s: only allocated %d sgls of "
4603                                 "expected %d count. Unloading driver.\n",
4604                                 __func__, i, els_xri_cnt);
4605                         goto out_free_mem;
4606                 }
4607
4608                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4609                 if (sglq_entry->sli4_xritag == NO_XRI) {
4610                         kfree(sglq_entry);
4611                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4612                                 "Unloading driver.\n", __func__);
4613                         goto out_free_mem;
4614                 }
4615                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4616                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4617                 if (sglq_entry->virt == NULL) {
4618                         kfree(sglq_entry);
4619                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4620                                 "Unloading driver.\n", __func__);
4621                         goto out_free_mem;
4622                 }
4623                 sglq_entry->sgl = sglq_entry->virt;
4624                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4625
4626                 /* The list order is used by later block SGL registraton */
4627                 spin_lock_irq(&phba->hbalock);
4628                 sglq_entry->state = SGL_FREED;
4629                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4630                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4631                 phba->sli4_hba.total_sglq_bufs++;
4632                 spin_unlock_irq(&phba->hbalock);
4633         }
4634         return 0;
4635
4636 out_free_mem:
4637         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4638         lpfc_free_sgl_list(phba);
4639         return -ENOMEM;
4640 }
4641
4642 /**
4643  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4644  * @phba: pointer to lpfc hba data structure.
4645  *
4646  * This routine is invoked to post rpi header templates to the
4647  * HBA consistent with the SLI-4 interface spec.  This routine
4648  * posts a PAGE_SIZE memory region to the port to hold up to
4649  * PAGE_SIZE modulo 64 rpi context headers.
4650  * No locks are held here because this is an initialization routine
4651  * called only from probe or lpfc_online when interrupts are not
4652  * enabled and the driver is reinitializing the device.
4653  *
4654  * Return codes
4655  *      0 - successful
4656  *      -ENOMEM - No availble memory
4657  *      -EIO - The mailbox failed to complete successfully.
4658  **/
4659 int
4660 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4661 {
4662         int rc = 0;
4663         int longs;
4664         uint16_t rpi_count;
4665         struct lpfc_rpi_hdr *rpi_hdr;
4666
4667         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4668
4669         /*
4670          * Provision an rpi bitmask range for discovery. The total count
4671          * is the difference between max and base + 1.
4672          */
4673         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4674                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4675
4676         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4677         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4678                                            GFP_KERNEL);
4679         if (!phba->sli4_hba.rpi_bmask)
4680                 return -ENOMEM;
4681
4682         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4683         if (!rpi_hdr) {
4684                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4685                                 "0391 Error during rpi post operation\n");
4686                 lpfc_sli4_remove_rpis(phba);
4687                 rc = -ENODEV;
4688         }
4689
4690         return rc;
4691 }
4692
4693 /**
4694  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4695  * @phba: pointer to lpfc hba data structure.
4696  *
4697  * This routine is invoked to allocate a single 4KB memory region to
4698  * support rpis and stores them in the phba.  This single region
4699  * provides support for up to 64 rpis.  The region is used globally
4700  * by the device.
4701  *
4702  * Returns:
4703  *   A valid rpi hdr on success.
4704  *   A NULL pointer on any failure.
4705  **/
4706 struct lpfc_rpi_hdr *
4707 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4708 {
4709         uint16_t rpi_limit, curr_rpi_range;
4710         struct lpfc_dmabuf *dmabuf;
4711         struct lpfc_rpi_hdr *rpi_hdr;
4712
4713         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4714                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4715
4716         spin_lock_irq(&phba->hbalock);
4717         curr_rpi_range = phba->sli4_hba.next_rpi;
4718         spin_unlock_irq(&phba->hbalock);
4719
4720         /*
4721          * The port has a limited number of rpis. The increment here
4722          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4723          * and to allow the full max_rpi range per port.
4724          */
4725         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4726                 return NULL;
4727
4728         /*
4729          * First allocate the protocol header region for the port.  The
4730          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4731          */
4732         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4733         if (!dmabuf)
4734                 return NULL;
4735
4736         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4737                                           LPFC_HDR_TEMPLATE_SIZE,
4738                                           &dmabuf->phys,
4739                                           GFP_KERNEL);
4740         if (!dmabuf->virt) {
4741                 rpi_hdr = NULL;
4742                 goto err_free_dmabuf;
4743         }
4744
4745         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4746         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4747                 rpi_hdr = NULL;
4748                 goto err_free_coherent;
4749         }
4750
4751         /* Save the rpi header data for cleanup later. */
4752         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4753         if (!rpi_hdr)
4754                 goto err_free_coherent;
4755
4756         rpi_hdr->dmabuf = dmabuf;
4757         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4758         rpi_hdr->page_count = 1;
4759         spin_lock_irq(&phba->hbalock);
4760         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4761         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4762
4763         /*
4764          * The next_rpi stores the next module-64 rpi value to post
4765          * in any subsequent rpi memory region postings.
4766          */
4767         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4768         spin_unlock_irq(&phba->hbalock);
4769         return rpi_hdr;
4770
4771  err_free_coherent:
4772         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4773                           dmabuf->virt, dmabuf->phys);
4774  err_free_dmabuf:
4775         kfree(dmabuf);
4776         return NULL;
4777 }
4778
4779 /**
4780  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4781  * @phba: pointer to lpfc hba data structure.
4782  *
4783  * This routine is invoked to remove all memory resources allocated
4784  * to support rpis. This routine presumes the caller has released all
4785  * rpis consumed by fabric or port logins and is prepared to have
4786  * the header pages removed.
4787  **/
4788 void
4789 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4790 {
4791         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4792
4793         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4794                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4795                 list_del(&rpi_hdr->list);
4796                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4797                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4798                 kfree(rpi_hdr->dmabuf);
4799                 kfree(rpi_hdr);
4800         }
4801
4802         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4803         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4804 }
4805
4806 /**
4807  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4808  * @pdev: pointer to pci device data structure.
4809  *
4810  * This routine is invoked to allocate the driver hba data structure for an
4811  * HBA device. If the allocation is successful, the phba reference to the
4812  * PCI device data structure is set.
4813  *
4814  * Return codes
4815  *      pointer to @phba - successful
4816  *      NULL - error
4817  **/
4818 static struct lpfc_hba *
4819 lpfc_hba_alloc(struct pci_dev *pdev)
4820 {
4821         struct lpfc_hba *phba;
4822
4823         /* Allocate memory for HBA structure */
4824         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4825         if (!phba) {
4826                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4827                 return NULL;
4828         }
4829
4830         /* Set reference to PCI device in HBA structure */
4831         phba->pcidev = pdev;
4832
4833         /* Assign an unused board number */
4834         phba->brd_no = lpfc_get_instance();
4835         if (phba->brd_no < 0) {
4836                 kfree(phba);
4837                 return NULL;
4838         }
4839
4840         spin_lock_init(&phba->ct_ev_lock);
4841         INIT_LIST_HEAD(&phba->ct_ev_waiters);
4842
4843         return phba;
4844 }
4845
4846 /**
4847  * lpfc_hba_free - Free driver hba data structure with a device.
4848  * @phba: pointer to lpfc hba data structure.
4849  *
4850  * This routine is invoked to free the driver hba data structure with an
4851  * HBA device.
4852  **/
4853 static void
4854 lpfc_hba_free(struct lpfc_hba *phba)
4855 {
4856         /* Release the driver assigned board number */
4857         idr_remove(&lpfc_hba_index, phba->brd_no);
4858
4859         kfree(phba);
4860         return;
4861 }
4862
4863 /**
4864  * lpfc_create_shost - Create hba physical port with associated scsi host.
4865  * @phba: pointer to lpfc hba data structure.
4866  *
4867  * This routine is invoked to create HBA physical port and associate a SCSI
4868  * host with it.
4869  *
4870  * Return codes
4871  *      0 - successful
4872  *      other values - error
4873  **/
4874 static int
4875 lpfc_create_shost(struct lpfc_hba *phba)
4876 {
4877         struct lpfc_vport *vport;
4878         struct Scsi_Host  *shost;
4879
4880         /* Initialize HBA FC structure */
4881         phba->fc_edtov = FF_DEF_EDTOV;
4882         phba->fc_ratov = FF_DEF_RATOV;
4883         phba->fc_altov = FF_DEF_ALTOV;
4884         phba->fc_arbtov = FF_DEF_ARBTOV;
4885
4886         atomic_set(&phba->sdev_cnt, 0);
4887         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4888         if (!vport)
4889                 return -ENODEV;
4890
4891         shost = lpfc_shost_from_vport(vport);
4892         phba->pport = vport;
4893         lpfc_debugfs_initialize(vport);
4894         /* Put reference to SCSI host to driver's device private data */
4895         pci_set_drvdata(phba->pcidev, shost);
4896
4897         return 0;
4898 }
4899
4900 /**
4901  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4902  * @phba: pointer to lpfc hba data structure.
4903  *
4904  * This routine is invoked to destroy HBA physical port and the associated
4905  * SCSI host.
4906  **/
4907 static void
4908 lpfc_destroy_shost(struct lpfc_hba *phba)
4909 {
4910         struct lpfc_vport *vport = phba->pport;
4911
4912         /* Destroy physical port that associated with the SCSI host */
4913         destroy_port(vport);
4914
4915         return;
4916 }
4917
4918 /**
4919  * lpfc_setup_bg - Setup Block guard structures and debug areas.
4920  * @phba: pointer to lpfc hba data structure.
4921  * @shost: the shost to be used to detect Block guard settings.
4922  *
4923  * This routine sets up the local Block guard protocol settings for @shost.
4924  * This routine also allocates memory for debugging bg buffers.
4925  **/
4926 static void
4927 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4928 {
4929         int pagecnt = 10;
4930         if (lpfc_prot_mask && lpfc_prot_guard) {
4931                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4932                                 "1478 Registering BlockGuard with the "
4933                                 "SCSI layer\n");
4934                 scsi_host_set_prot(shost, lpfc_prot_mask);
4935                 scsi_host_set_guard(shost, lpfc_prot_guard);
4936         }
4937         if (!_dump_buf_data) {
4938                 while (pagecnt) {
4939                         spin_lock_init(&_dump_buf_lock);
4940                         _dump_buf_data =
4941                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4942                         if (_dump_buf_data) {
4943                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4944                                         "9043 BLKGRD: allocated %d pages for "
4945                                        "_dump_buf_data at 0x%p\n",
4946                                        (1 << pagecnt), _dump_buf_data);
4947                                 _dump_buf_data_order = pagecnt;
4948                                 memset(_dump_buf_data, 0,
4949                                        ((1 << PAGE_SHIFT) << pagecnt));
4950                                 break;
4951                         } else
4952                                 --pagecnt;
4953                 }
4954                 if (!_dump_buf_data_order)
4955                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4956                                 "9044 BLKGRD: ERROR unable to allocate "
4957                                "memory for hexdump\n");
4958         } else
4959                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4960                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4961                        "\n", _dump_buf_data);
4962         if (!_dump_buf_dif) {
4963                 while (pagecnt) {
4964                         _dump_buf_dif =
4965                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4966                         if (_dump_buf_dif) {
4967                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4968                                         "9046 BLKGRD: allocated %d pages for "
4969                                        "_dump_buf_dif at 0x%p\n",
4970                                        (1 << pagecnt), _dump_buf_dif);
4971                                 _dump_buf_dif_order = pagecnt;
4972                                 memset(_dump_buf_dif, 0,
4973                                        ((1 << PAGE_SHIFT) << pagecnt));
4974                                 break;
4975                         } else
4976                                 --pagecnt;
4977                 }
4978                 if (!_dump_buf_dif_order)
4979                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4980                         "9047 BLKGRD: ERROR unable to allocate "
4981                                "memory for hexdump\n");
4982         } else
4983                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4984                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4985                        _dump_buf_dif);
4986 }
4987
4988 /**
4989  * lpfc_post_init_setup - Perform necessary device post initialization setup.
4990  * @phba: pointer to lpfc hba data structure.
4991  *
4992  * This routine is invoked to perform all the necessary post initialization
4993  * setup for the device.
4994  **/
4995 static void
4996 lpfc_post_init_setup(struct lpfc_hba *phba)
4997 {
4998         struct Scsi_Host  *shost;
4999         struct lpfc_adapter_event_header adapter_event;
5000
5001         /* Get the default values for Model Name and Description */
5002         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
5003
5004         /*
5005          * hba setup may have changed the hba_queue_depth so we need to
5006          * adjust the value of can_queue.
5007          */
5008         shost = pci_get_drvdata(phba->pcidev);
5009         shost->can_queue = phba->cfg_hba_queue_depth - 10;
5010         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
5011                 lpfc_setup_bg(phba, shost);
5012
5013         lpfc_host_attrib_init(shost);
5014
5015         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
5016                 spin_lock_irq(shost->host_lock);
5017                 lpfc_poll_start_timer(phba);
5018                 spin_unlock_irq(shost->host_lock);
5019         }
5020
5021         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5022                         "0428 Perform SCSI scan\n");
5023         /* Send board arrival event to upper layer */
5024         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
5025         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
5026         fc_host_post_vendor_event(shost, fc_get_event_number(),
5027                                   sizeof(adapter_event),
5028                                   (char *) &adapter_event,
5029                                   LPFC_NL_VENDOR_ID);
5030         return;
5031 }
5032
5033 /**
5034  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
5035  * @phba: pointer to lpfc hba data structure.
5036  *
5037  * This routine is invoked to set up the PCI device memory space for device
5038  * with SLI-3 interface spec.
5039  *
5040  * Return codes
5041  *      0 - successful
5042  *      other values - error
5043  **/
5044 static int
5045 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
5046 {
5047         struct pci_dev *pdev;
5048         unsigned long bar0map_len, bar2map_len;
5049         int i, hbq_count;
5050         void *ptr;
5051         int error = -ENODEV;
5052
5053         /* Obtain PCI device reference */
5054         if (!phba->pcidev)
5055                 return error;
5056         else
5057                 pdev = phba->pcidev;
5058
5059         /* Set the device DMA mask size */
5060         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5061          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5062                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5063                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5064                         return error;
5065                 }
5066         }
5067
5068         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5069          * required by each mapping.
5070          */
5071         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5072         bar0map_len = pci_resource_len(pdev, 0);
5073
5074         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5075         bar2map_len = pci_resource_len(pdev, 2);
5076
5077         /* Map HBA SLIM to a kernel virtual address. */
5078         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5079         if (!phba->slim_memmap_p) {
5080                 dev_printk(KERN_ERR, &pdev->dev,
5081                            "ioremap failed for SLIM memory.\n");
5082                 goto out;
5083         }
5084
5085         /* Map HBA Control Registers to a kernel virtual address. */
5086         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5087         if (!phba->ctrl_regs_memmap_p) {
5088                 dev_printk(KERN_ERR, &pdev->dev,
5089                            "ioremap failed for HBA control registers.\n");
5090                 goto out_iounmap_slim;
5091         }
5092
5093         /* Allocate memory for SLI-2 structures */
5094         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5095                                                SLI2_SLIM_SIZE,
5096                                                &phba->slim2p.phys,
5097                                                GFP_KERNEL);
5098         if (!phba->slim2p.virt)
5099                 goto out_iounmap;
5100
5101         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5102         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5103         phba->mbox_ext = (phba->slim2p.virt +
5104                 offsetof(struct lpfc_sli2_slim, mbx_ext_words));
5105         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5106         phba->IOCBs = (phba->slim2p.virt +
5107                        offsetof(struct lpfc_sli2_slim, IOCBs));
5108
5109         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5110                                                  lpfc_sli_hbq_size(),
5111                                                  &phba->hbqslimp.phys,
5112                                                  GFP_KERNEL);
5113         if (!phba->hbqslimp.virt)
5114                 goto out_free_slim;
5115
5116         hbq_count = lpfc_sli_hbq_count();
5117         ptr = phba->hbqslimp.virt;
5118         for (i = 0; i < hbq_count; ++i) {
5119                 phba->hbqs[i].hbq_virt = ptr;
5120                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5121                 ptr += (lpfc_hbq_defs[i]->entry_count *
5122                         sizeof(struct lpfc_hbq_entry));
5123         }
5124         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5125         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5126
5127         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5128
5129         INIT_LIST_HEAD(&phba->rb_pend_list);
5130
5131         phba->MBslimaddr = phba->slim_memmap_p;
5132         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5133         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5134         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5135         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5136
5137         return 0;
5138
5139 out_free_slim:
5140         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5141                           phba->slim2p.virt, phba->slim2p.phys);
5142 out_iounmap:
5143         iounmap(phba->ctrl_regs_memmap_p);
5144 out_iounmap_slim:
5145         iounmap(phba->slim_memmap_p);
5146 out:
5147         return error;
5148 }
5149
5150 /**
5151  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5152  * @phba: pointer to lpfc hba data structure.
5153  *
5154  * This routine is invoked to unset the PCI device memory space for device
5155  * with SLI-3 interface spec.
5156  **/
5157 static void
5158 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5159 {
5160         struct pci_dev *pdev;
5161
5162         /* Obtain PCI device reference */
5163         if (!phba->pcidev)
5164                 return;
5165         else
5166                 pdev = phba->pcidev;
5167
5168         /* Free coherent DMA memory allocated */
5169         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5170                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5171         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5172                           phba->slim2p.virt, phba->slim2p.phys);
5173
5174         /* I/O memory unmap */
5175         iounmap(phba->ctrl_regs_memmap_p);
5176         iounmap(phba->slim_memmap_p);
5177
5178         return;
5179 }
5180
5181 /**
5182  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5183  * @phba: pointer to lpfc hba data structure.
5184  *
5185  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5186  * done and check status.
5187  *
5188  * Return 0 if successful, otherwise -ENODEV.
5189  **/
5190 int
5191 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5192 {
5193         struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5194         int i, port_error = -ENODEV;
5195
5196         if (!phba->sli4_hba.STAregaddr)
5197                 return -ENODEV;
5198
5199         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5200         for (i = 0; i < 3000; i++) {
5201                 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5202                 /* Encounter fatal POST error, break out */
5203                 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5204                         port_error = -ENODEV;
5205                         break;
5206                 }
5207                 if (LPFC_POST_STAGE_ARMFW_READY ==
5208                     bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5209                         port_error = 0;
5210                         break;
5211                 }
5212                 msleep(10);
5213         }
5214
5215         if (port_error)
5216                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5217                         "1408 Failure HBA POST Status: sta_reg=0x%x, "
5218                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5219                         "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5220                         bf_get(lpfc_hst_state_perr, &sta_reg),
5221                         bf_get(lpfc_hst_state_sfi, &sta_reg),
5222                         bf_get(lpfc_hst_state_nip, &sta_reg),
5223                         bf_get(lpfc_hst_state_ipc, &sta_reg),
5224                         bf_get(lpfc_hst_state_xrom, &sta_reg),
5225                         bf_get(lpfc_hst_state_dl, &sta_reg),
5226                         bf_get(lpfc_hst_state_port_status, &sta_reg));
5227
5228         /* Log device information */
5229         phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5230         if (bf_get(lpfc_sli_intf_valid,
5231                    &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5232                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5233                                 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5234                                 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5235                                 bf_get(lpfc_sli_intf_sli_family,
5236                                        &phba->sli4_hba.sli_intf),
5237                                 bf_get(lpfc_sli_intf_slirev,
5238                                        &phba->sli4_hba.sli_intf),
5239                                 bf_get(lpfc_sli_intf_featurelevel1,
5240                                        &phba->sli4_hba.sli_intf),
5241                                 bf_get(lpfc_sli_intf_featurelevel2,
5242                                        &phba->sli4_hba.sli_intf));
5243         }
5244         phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5245         phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5246         /* With uncoverable error, log the error message and return error */
5247         uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5248         uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5249         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5250             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5251                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5252                                 "1422 HBA Unrecoverable error: "
5253                                 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5254                                 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5255                                 uerrlo_reg.word0, uerrhi_reg.word0,
5256                                 phba->sli4_hba.ue_mask_lo,
5257                                 phba->sli4_hba.ue_mask_hi);
5258                 return -ENODEV;
5259         }
5260
5261         return port_error;
5262 }
5263
5264 /**
5265  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5266  * @phba: pointer to lpfc hba data structure.
5267  *
5268  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5269  * memory map.
5270  **/
5271 static void
5272 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5273 {
5274         phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5275                                         LPFC_UERR_STATUS_LO;
5276         phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5277                                         LPFC_UERR_STATUS_HI;
5278         phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5279                                         LPFC_UE_MASK_LO;
5280         phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5281                                         LPFC_UE_MASK_HI;
5282         phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5283                                         LPFC_SLI_INTF;
5284 }
5285
5286 /**
5287  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5288  * @phba: pointer to lpfc hba data structure.
5289  *
5290  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5291  * memory map.
5292  **/
5293 static void
5294 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5295 {
5296
5297         phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5298                                     LPFC_HST_STATE;
5299         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5300                                     LPFC_HST_ISR0;
5301         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5302                                     LPFC_HST_IMR0;
5303         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5304                                      LPFC_HST_ISCR0;
5305         return;
5306 }
5307
5308 /**
5309  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5310  * @phba: pointer to lpfc hba data structure.
5311  * @vf: virtual function number
5312  *
5313  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5314  * based on the given viftual function number, @vf.
5315  *
5316  * Return 0 if successful, otherwise -ENODEV.
5317  **/
5318 static int
5319 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5320 {
5321         if (vf > LPFC_VIR_FUNC_MAX)
5322                 return -ENODEV;
5323
5324         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5325                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5326         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5327                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5328         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5329                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5330         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5331                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5332         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5333                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5334         return 0;
5335 }
5336
5337 /**
5338  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5339  * @phba: pointer to lpfc hba data structure.
5340  *
5341  * This routine is invoked to create the bootstrap mailbox
5342  * region consistent with the SLI-4 interface spec.  This
5343  * routine allocates all memory necessary to communicate
5344  * mailbox commands to the port and sets up all alignment
5345  * needs.  No locks are expected to be held when calling
5346  * this routine.
5347  *
5348  * Return codes
5349  *      0 - successful
5350  *      -ENOMEM - could not allocated memory.
5351  **/
5352 static int
5353 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5354 {
5355         uint32_t bmbx_size;
5356         struct lpfc_dmabuf *dmabuf;
5357         struct dma_address *dma_address;
5358         uint32_t pa_addr;
5359         uint64_t phys_addr;
5360
5361         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5362         if (!dmabuf)
5363                 return -ENOMEM;
5364
5365         /*
5366          * The bootstrap mailbox region is comprised of 2 parts
5367          * plus an alignment restriction of 16 bytes.
5368          */
5369         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5370         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5371                                           bmbx_size,
5372                                           &dmabuf->phys,
5373                                           GFP_KERNEL);
5374         if (!dmabuf->virt) {
5375                 kfree(dmabuf);
5376                 return -ENOMEM;
5377         }
5378         memset(dmabuf->virt, 0, bmbx_size);
5379
5380         /*
5381          * Initialize the bootstrap mailbox pointers now so that the register
5382          * operations are simple later.  The mailbox dma address is required
5383          * to be 16-byte aligned.  Also align the virtual memory as each
5384          * maibox is copied into the bmbx mailbox region before issuing the
5385          * command to the port.
5386          */
5387         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5388         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5389
5390         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5391                                               LPFC_ALIGN_16_BYTE);
5392         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5393                                               LPFC_ALIGN_16_BYTE);
5394
5395         /*
5396          * Set the high and low physical addresses now.  The SLI4 alignment
5397          * requirement is 16 bytes and the mailbox is posted to the port
5398          * as two 30-bit addresses.  The other data is a bit marking whether
5399          * the 30-bit address is the high or low address.
5400          * Upcast bmbx aphys to 64bits so shift instruction compiles
5401          * clean on 32 bit machines.
5402          */
5403         dma_address = &phba->sli4_hba.bmbx.dma_address;
5404         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5405         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5406         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5407                                            LPFC_BMBX_BIT1_ADDR_HI);
5408
5409         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5410         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5411                                            LPFC_BMBX_BIT1_ADDR_LO);
5412         return 0;
5413 }
5414
5415 /**
5416  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5417  * @phba: pointer to lpfc hba data structure.
5418  *
5419  * This routine is invoked to teardown the bootstrap mailbox
5420  * region and release all host resources. This routine requires
5421  * the caller to ensure all mailbox commands recovered, no
5422  * additional mailbox comands are sent, and interrupts are disabled
5423  * before calling this routine.
5424  *
5425  **/
5426 static void
5427 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5428 {
5429         dma_free_coherent(&phba->pcidev->dev,
5430                           phba->sli4_hba.bmbx.bmbx_size,
5431                           phba->sli4_hba.bmbx.dmabuf->virt,
5432                           phba->sli4_hba.bmbx.dmabuf->phys);
5433
5434         kfree(phba->sli4_hba.bmbx.dmabuf);
5435         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5436 }
5437
5438 /**
5439  * lpfc_sli4_read_config - Get the config parameters.
5440  * @phba: pointer to lpfc hba data structure.
5441  *
5442  * This routine is invoked to read the configuration parameters from the HBA.
5443  * The configuration parameters are used to set the base and maximum values
5444  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5445  * allocation for the port.
5446  *
5447  * Return codes
5448  *      0 - successful
5449  *      -ENOMEM - No availble memory
5450  *      -EIO - The mailbox failed to complete successfully.
5451  **/
5452 static int
5453 lpfc_sli4_read_config(struct lpfc_hba *phba)
5454 {
5455         LPFC_MBOXQ_t *pmb;
5456         struct lpfc_mbx_read_config *rd_config;
5457         uint32_t rc = 0;
5458
5459         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5460         if (!pmb) {
5461                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5462                                 "2011 Unable to allocate memory for issuing "
5463                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5464                 return -ENOMEM;
5465         }
5466
5467         lpfc_read_config(phba, pmb);
5468
5469         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5470         if (rc != MBX_SUCCESS) {
5471                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5472                         "2012 Mailbox failed , mbxCmd x%x "
5473                         "READ_CONFIG, mbxStatus x%x\n",
5474                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5475                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5476                 rc = -EIO;
5477         } else {
5478                 rd_config = &pmb->u.mqe.un.rd_config;
5479                 phba->sli4_hba.max_cfg_param.max_xri =
5480                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5481                 phba->sli4_hba.max_cfg_param.xri_base =
5482                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5483                 phba->sli4_hba.max_cfg_param.max_vpi =
5484                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5485                 phba->sli4_hba.max_cfg_param.vpi_base =
5486                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5487                 phba->sli4_hba.max_cfg_param.max_rpi =
5488                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5489                 phba->sli4_hba.max_cfg_param.rpi_base =
5490                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5491                 phba->sli4_hba.max_cfg_param.max_vfi =
5492                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5493                 phba->sli4_hba.max_cfg_param.vfi_base =
5494                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5495                 phba->sli4_hba.max_cfg_param.max_fcfi =
5496                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5497                 phba->sli4_hba.max_cfg_param.fcfi_base =
5498                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5499                 phba->sli4_hba.max_cfg_param.max_eq =
5500                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5501                 phba->sli4_hba.max_cfg_param.max_rq =
5502                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5503                 phba->sli4_hba.max_cfg_param.max_wq =
5504                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5505                 phba->sli4_hba.max_cfg_param.max_cq =
5506                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5507                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5508                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5509                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5510                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5511                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5512                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5513                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5514                 phba->max_vports = phba->max_vpi;
5515                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5516                                 "2003 cfg params XRI(B:%d M:%d), "
5517                                 "VPI(B:%d M:%d) "
5518                                 "VFI(B:%d M:%d) "
5519                                 "RPI(B:%d M:%d) "
5520                                 "FCFI(B:%d M:%d)\n",
5521                                 phba->sli4_hba.max_cfg_param.xri_base,
5522                                 phba->sli4_hba.max_cfg_param.max_xri,
5523                                 phba->sli4_hba.max_cfg_param.vpi_base,
5524                                 phba->sli4_hba.max_cfg_param.max_vpi,
5525                                 phba->sli4_hba.max_cfg_param.vfi_base,
5526                                 phba->sli4_hba.max_cfg_param.max_vfi,
5527                                 phba->sli4_hba.max_cfg_param.rpi_base,
5528                                 phba->sli4_hba.max_cfg_param.max_rpi,
5529                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5530                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5531         }
5532         mempool_free(pmb, phba->mbox_mem_pool);
5533
5534         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5535         if (phba->cfg_hba_queue_depth >
5536                 (phba->sli4_hba.max_cfg_param.max_xri -
5537                         lpfc_sli4_get_els_iocb_cnt(phba)))
5538                 phba->cfg_hba_queue_depth =
5539                         phba->sli4_hba.max_cfg_param.max_xri -
5540                                 lpfc_sli4_get_els_iocb_cnt(phba);
5541         return rc;
5542 }
5543
5544 /**
5545  * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5546  * @phba: pointer to lpfc hba data structure.
5547  *
5548  * This routine is invoked to setup the host-side endian order to the
5549  * HBA consistent with the SLI-4 interface spec.
5550  *
5551  * Return codes
5552  *      0 - successful
5553  *      -ENOMEM - No availble memory
5554  *      -EIO - The mailbox failed to complete successfully.
5555  **/
5556 static int
5557 lpfc_setup_endian_order(struct lpfc_hba *phba)
5558 {
5559         LPFC_MBOXQ_t *mboxq;
5560         uint32_t rc = 0;
5561         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5562                                       HOST_ENDIAN_HIGH_WORD1};
5563
5564         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5565         if (!mboxq) {
5566                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5567                                 "0492 Unable to allocate memory for issuing "
5568                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5569                 return -ENOMEM;
5570         }
5571
5572         /*
5573          * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5574          * words to contain special data values and no other data.
5575          */
5576         memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5577         memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5578         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5579         if (rc != MBX_SUCCESS) {
5580                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5581                                 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5582                                 "status x%x\n",
5583                                 rc);
5584                 rc = -EIO;
5585         }
5586
5587         mempool_free(mboxq, phba->mbox_mem_pool);
5588         return rc;
5589 }
5590
5591 /**
5592  * lpfc_sli4_queue_create - Create all the SLI4 queues
5593  * @phba: pointer to lpfc hba data structure.
5594  *
5595  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5596  * operation. For each SLI4 queue type, the parameters such as queue entry
5597  * count (queue depth) shall be taken from the module parameter. For now,
5598  * we just use some constant number as place holder.
5599  *
5600  * Return codes
5601  *      0 - successful
5602  *      -ENOMEM - No availble memory
5603  *      -EIO - The mailbox failed to complete successfully.
5604  **/
5605 static int
5606 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5607 {
5608         struct lpfc_queue *qdesc;
5609         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5610         int cfg_fcp_wq_count;
5611         int cfg_fcp_eq_count;
5612
5613         /*
5614          * Sanity check for confiugred queue parameters against the run-time
5615          * device parameters
5616          */
5617
5618         /* Sanity check on FCP fast-path WQ parameters */
5619         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5620         if (cfg_fcp_wq_count >
5621             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5622                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5623                                    LPFC_SP_WQN_DEF;
5624                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5625                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5626                                         "2581 Not enough WQs (%d) from "
5627                                         "the pci function for supporting "
5628                                         "FCP WQs (%d)\n",
5629                                         phba->sli4_hba.max_cfg_param.max_wq,
5630                                         phba->cfg_fcp_wq_count);
5631                         goto out_error;
5632                 }
5633                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5634                                 "2582 Not enough WQs (%d) from the pci "
5635                                 "function for supporting the requested "
5636                                 "FCP WQs (%d), the actual FCP WQs can "
5637                                 "be supported: %d\n",
5638                                 phba->sli4_hba.max_cfg_param.max_wq,
5639                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5640         }
5641         /* The actual number of FCP work queues adopted */
5642         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5643
5644         /* Sanity check on FCP fast-path EQ parameters */
5645         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5646         if (cfg_fcp_eq_count >
5647             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5648                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5649                                    LPFC_SP_EQN_DEF;
5650                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5651                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5652                                         "2574 Not enough EQs (%d) from the "
5653                                         "pci function for supporting FCP "
5654                                         "EQs (%d)\n",
5655                                         phba->sli4_hba.max_cfg_param.max_eq,
5656                                         phba->cfg_fcp_eq_count);
5657                         goto out_error;
5658                 }
5659                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5660                                 "2575 Not enough EQs (%d) from the pci "
5661                                 "function for supporting the requested "
5662                                 "FCP EQs (%d), the actual FCP EQs can "
5663                                 "be supported: %d\n",
5664                                 phba->sli4_hba.max_cfg_param.max_eq,
5665                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5666         }
5667         /* It does not make sense to have more EQs than WQs */
5668         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5669                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5670                                 "2593 The FCP EQ count(%d) cannot be greater "
5671                                 "than the FCP WQ count(%d), limiting the "
5672                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5673                                 phba->cfg_fcp_wq_count,
5674                                 phba->cfg_fcp_wq_count);
5675                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5676         }
5677         /* The actual number of FCP event queues adopted */
5678         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5679         /* The overall number of event queues used */
5680         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5681
5682         /*
5683          * Create Event Queues (EQs)
5684          */
5685
5686         /* Get EQ depth from module parameter, fake the default for now */
5687         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5688         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5689
5690         /* Create slow path event queue */
5691         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5692                                       phba->sli4_hba.eq_ecount);
5693         if (!qdesc) {
5694                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5695                                 "0496 Failed allocate slow-path EQ\n");
5696                 goto out_error;
5697         }
5698         phba->sli4_hba.sp_eq = qdesc;
5699
5700         /* Create fast-path FCP Event Queue(s) */
5701         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5702                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5703         if (!phba->sli4_hba.fp_eq) {
5704                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5705                                 "2576 Failed allocate memory for fast-path "
5706                                 "EQ record array\n");
5707                 goto out_free_sp_eq;
5708         }
5709         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5710                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5711                                               phba->sli4_hba.eq_ecount);
5712                 if (!qdesc) {
5713                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5714                                         "0497 Failed allocate fast-path EQ\n");
5715                         goto out_free_fp_eq;
5716                 }
5717                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5718         }
5719
5720         /*
5721          * Create Complete Queues (CQs)
5722          */
5723
5724         /* Get CQ depth from module parameter, fake the default for now */
5725         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5726         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5727
5728         /* Create slow-path Mailbox Command Complete Queue */
5729         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5730                                       phba->sli4_hba.cq_ecount);
5731         if (!qdesc) {
5732                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5733                                 "0500 Failed allocate slow-path mailbox CQ\n");
5734                 goto out_free_fp_eq;
5735         }
5736         phba->sli4_hba.mbx_cq = qdesc;
5737
5738         /* Create slow-path ELS Complete Queue */
5739         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5740                                       phba->sli4_hba.cq_ecount);
5741         if (!qdesc) {
5742                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5743                                 "0501 Failed allocate slow-path ELS CQ\n");
5744                 goto out_free_mbx_cq;
5745         }
5746         phba->sli4_hba.els_cq = qdesc;
5747
5748
5749         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5750         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5751                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
5752         if (!phba->sli4_hba.fcp_cq) {
5753                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5754                                 "2577 Failed allocate memory for fast-path "
5755                                 "CQ record array\n");
5756                 goto out_free_els_cq;
5757         }
5758         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5759                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5760                                               phba->sli4_hba.cq_ecount);
5761                 if (!qdesc) {
5762                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5763                                         "0499 Failed allocate fast-path FCP "
5764                                         "CQ (%d)\n", fcp_cqidx);
5765                         goto out_free_fcp_cq;
5766                 }
5767                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5768         }
5769
5770         /* Create Mailbox Command Queue */
5771         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5772         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5773
5774         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5775                                       phba->sli4_hba.mq_ecount);
5776         if (!qdesc) {
5777                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5778                                 "0505 Failed allocate slow-path MQ\n");
5779                 goto out_free_fcp_cq;
5780         }
5781         phba->sli4_hba.mbx_wq = qdesc;
5782
5783         /*
5784          * Create all the Work Queues (WQs)
5785          */
5786         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5787         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5788
5789         /* Create slow-path ELS Work Queue */
5790         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5791                                       phba->sli4_hba.wq_ecount);
5792         if (!qdesc) {
5793                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5794                                 "0504 Failed allocate slow-path ELS WQ\n");
5795                 goto out_free_mbx_wq;
5796         }
5797         phba->sli4_hba.els_wq = qdesc;
5798
5799         /* Create fast-path FCP Work Queue(s) */
5800         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5801                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
5802         if (!phba->sli4_hba.fcp_wq) {
5803                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5804                                 "2578 Failed allocate memory for fast-path "
5805                                 "WQ record array\n");
5806                 goto out_free_els_wq;
5807         }
5808         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5809                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5810                                               phba->sli4_hba.wq_ecount);
5811                 if (!qdesc) {
5812                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5813                                         "0503 Failed allocate fast-path FCP "
5814                                         "WQ (%d)\n", fcp_wqidx);
5815                         goto out_free_fcp_wq;
5816                 }
5817                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5818         }
5819
5820         /*
5821          * Create Receive Queue (RQ)
5822          */
5823         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5824         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5825
5826         /* Create Receive Queue for header */
5827         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5828                                       phba->sli4_hba.rq_ecount);
5829         if (!qdesc) {
5830                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5831                                 "0506 Failed allocate receive HRQ\n");
5832                 goto out_free_fcp_wq;
5833         }
5834         phba->sli4_hba.hdr_rq = qdesc;
5835
5836         /* Create Receive Queue for data */
5837         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5838                                       phba->sli4_hba.rq_ecount);
5839         if (!qdesc) {
5840                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5841                                 "0507 Failed allocate receive DRQ\n");
5842                 goto out_free_hdr_rq;
5843         }
5844         phba->sli4_hba.dat_rq = qdesc;
5845
5846         return 0;
5847
5848 out_free_hdr_rq:
5849         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5850         phba->sli4_hba.hdr_rq = NULL;
5851 out_free_fcp_wq:
5852         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5853                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5854                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5855         }
5856         kfree(phba->sli4_hba.fcp_wq);
5857 out_free_els_wq:
5858         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5859         phba->sli4_hba.els_wq = NULL;
5860 out_free_mbx_wq:
5861         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5862         phba->sli4_hba.mbx_wq = NULL;
5863 out_free_fcp_cq:
5864         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5865                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5866                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5867         }
5868         kfree(phba->sli4_hba.fcp_cq);
5869 out_free_els_cq:
5870         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5871         phba->sli4_hba.els_cq = NULL;
5872 out_free_mbx_cq:
5873         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5874         phba->sli4_hba.mbx_cq = NULL;
5875 out_free_fp_eq:
5876         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5877                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5878                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5879         }
5880         kfree(phba->sli4_hba.fp_eq);
5881 out_free_sp_eq:
5882         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5883         phba->sli4_hba.sp_eq = NULL;
5884 out_error:
5885         return -ENOMEM;
5886 }
5887
5888 /**
5889  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5890  * @phba: pointer to lpfc hba data structure.
5891  *
5892  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5893  * operation.
5894  *
5895  * Return codes
5896  *      0 - successful
5897  *      -ENOMEM - No availble memory
5898  *      -EIO - The mailbox failed to complete successfully.
5899  **/
5900 static void
5901 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5902 {
5903         int fcp_qidx;
5904
5905         /* Release mailbox command work queue */
5906         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5907         phba->sli4_hba.mbx_wq = NULL;
5908
5909         /* Release ELS work queue */
5910         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5911         phba->sli4_hba.els_wq = NULL;
5912
5913         /* Release FCP work queue */
5914         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5915                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5916         kfree(phba->sli4_hba.fcp_wq);
5917         phba->sli4_hba.fcp_wq = NULL;
5918
5919         /* Release unsolicited receive queue */
5920         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5921         phba->sli4_hba.hdr_rq = NULL;
5922         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5923         phba->sli4_hba.dat_rq = NULL;
5924
5925         /* Release ELS complete queue */
5926         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5927         phba->sli4_hba.els_cq = NULL;
5928
5929         /* Release mailbox command complete queue */
5930         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5931         phba->sli4_hba.mbx_cq = NULL;
5932
5933         /* Release FCP response complete queue */
5934         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5935                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5936         kfree(phba->sli4_hba.fcp_cq);
5937         phba->sli4_hba.fcp_cq = NULL;
5938
5939         /* Release fast-path event queue */
5940         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5941                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5942         kfree(phba->sli4_hba.fp_eq);
5943         phba->sli4_hba.fp_eq = NULL;
5944
5945         /* Release slow-path event queue */
5946         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5947         phba->sli4_hba.sp_eq = NULL;
5948
5949         return;
5950 }
5951
5952 /**
5953  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5954  * @phba: pointer to lpfc hba data structure.
5955  *
5956  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5957  * operation.
5958  *
5959  * Return codes
5960  *      0 - successful
5961  *      -ENOMEM - No availble memory
5962  *      -EIO - The mailbox failed to complete successfully.
5963  **/
5964 int
5965 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5966 {
5967         int rc = -ENOMEM;
5968         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5969         int fcp_cq_index = 0;
5970
5971         /*
5972          * Set up Event Queues (EQs)
5973          */
5974
5975         /* Set up slow-path event queue */
5976         if (!phba->sli4_hba.sp_eq) {
5977                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5978                                 "0520 Slow-path EQ not allocated\n");
5979                 goto out_error;
5980         }
5981         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5982                             LPFC_SP_DEF_IMAX);
5983         if (rc) {
5984                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5985                                 "0521 Failed setup of slow-path EQ: "
5986                                 "rc = 0x%x\n", rc);
5987                 goto out_error;
5988         }
5989         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5990                         "2583 Slow-path EQ setup: queue-id=%d\n",
5991                         phba->sli4_hba.sp_eq->queue_id);
5992
5993         /* Set up fast-path event queue */
5994         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5995                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5996                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5997                                         "0522 Fast-path EQ (%d) not "
5998                                         "allocated\n", fcp_eqidx);
5999                         goto out_destroy_fp_eq;
6000                 }
6001                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
6002                                     phba->cfg_fcp_imax);
6003                 if (rc) {
6004                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6005                                         "0523 Failed setup of fast-path EQ "
6006                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
6007                         goto out_destroy_fp_eq;
6008                 }
6009                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6010                                 "2584 Fast-path EQ setup: "
6011                                 "queue[%d]-id=%d\n", fcp_eqidx,
6012                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
6013         }
6014
6015         /*
6016          * Set up Complete Queues (CQs)
6017          */
6018
6019         /* Set up slow-path MBOX Complete Queue as the first CQ */
6020         if (!phba->sli4_hba.mbx_cq) {
6021                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6022                                 "0528 Mailbox CQ not allocated\n");
6023                 goto out_destroy_fp_eq;
6024         }
6025         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
6026                             LPFC_MCQ, LPFC_MBOX);
6027         if (rc) {
6028                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6029                                 "0529 Failed setup of slow-path mailbox CQ: "
6030                                 "rc = 0x%x\n", rc);
6031                 goto out_destroy_fp_eq;
6032         }
6033         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6034                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
6035                         phba->sli4_hba.mbx_cq->queue_id,
6036                         phba->sli4_hba.sp_eq->queue_id);
6037
6038         /* Set up slow-path ELS Complete Queue */
6039         if (!phba->sli4_hba.els_cq) {
6040                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6041                                 "0530 ELS CQ not allocated\n");
6042                 goto out_destroy_mbx_cq;
6043         }
6044         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
6045                             LPFC_WCQ, LPFC_ELS);
6046         if (rc) {
6047                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6048                                 "0531 Failed setup of slow-path ELS CQ: "
6049                                 "rc = 0x%x\n", rc);
6050                 goto out_destroy_mbx_cq;
6051         }
6052         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6053                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
6054                         phba->sli4_hba.els_cq->queue_id,
6055                         phba->sli4_hba.sp_eq->queue_id);
6056
6057         /* Set up fast-path FCP Response Complete Queue */
6058         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6059                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6060                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6061                                         "0526 Fast-path FCP CQ (%d) not "
6062                                         "allocated\n", fcp_cqidx);
6063                         goto out_destroy_fcp_cq;
6064                 }
6065                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6066                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6067                                     LPFC_WCQ, LPFC_FCP);
6068                 if (rc) {
6069                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6070                                         "0527 Failed setup of fast-path FCP "
6071                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6072                         goto out_destroy_fcp_cq;
6073                 }
6074                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6075                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6076                                 "parent eq[%d]-id=%d\n",
6077                                 fcp_cqidx,
6078                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6079                                 fcp_cqidx,
6080                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6081         }
6082
6083         /*
6084          * Set up all the Work Queues (WQs)
6085          */
6086
6087         /* Set up Mailbox Command Queue */
6088         if (!phba->sli4_hba.mbx_wq) {
6089                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6090                                 "0538 Slow-path MQ not allocated\n");
6091                 goto out_destroy_fcp_cq;
6092         }
6093         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6094                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6095         if (rc) {
6096                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6097                                 "0539 Failed setup of slow-path MQ: "
6098                                 "rc = 0x%x\n", rc);
6099                 goto out_destroy_fcp_cq;
6100         }
6101         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6102                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6103                         phba->sli4_hba.mbx_wq->queue_id,
6104                         phba->sli4_hba.mbx_cq->queue_id);
6105
6106         /* Set up slow-path ELS Work Queue */
6107         if (!phba->sli4_hba.els_wq) {
6108                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6109                                 "0536 Slow-path ELS WQ not allocated\n");
6110                 goto out_destroy_mbx_wq;
6111         }
6112         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6113                             phba->sli4_hba.els_cq, LPFC_ELS);
6114         if (rc) {
6115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6116                                 "0537 Failed setup of slow-path ELS WQ: "
6117                                 "rc = 0x%x\n", rc);
6118                 goto out_destroy_mbx_wq;
6119         }
6120         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6121                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6122                         phba->sli4_hba.els_wq->queue_id,
6123                         phba->sli4_hba.els_cq->queue_id);
6124
6125         /* Set up fast-path FCP Work Queue */
6126         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6127                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6128                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6129                                         "0534 Fast-path FCP WQ (%d) not "
6130                                         "allocated\n", fcp_wqidx);
6131                         goto out_destroy_fcp_wq;
6132                 }
6133                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6134                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6135                                     LPFC_FCP);
6136                 if (rc) {
6137                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6138                                         "0535 Failed setup of fast-path FCP "
6139                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6140                         goto out_destroy_fcp_wq;
6141                 }
6142                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6143                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6144                                 "parent cq[%d]-id=%d\n",
6145                                 fcp_wqidx,
6146                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6147                                 fcp_cq_index,
6148                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6149                 /* Round robin FCP Work Queue's Completion Queue assignment */
6150                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6151         }
6152
6153         /*
6154          * Create Receive Queue (RQ)
6155          */
6156         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6157                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6158                                 "0540 Receive Queue not allocated\n");
6159                 goto out_destroy_fcp_wq;
6160         }
6161         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6162                             phba->sli4_hba.els_cq, LPFC_USOL);
6163         if (rc) {
6164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6165                                 "0541 Failed setup of Receive Queue: "
6166                                 "rc = 0x%x\n", rc);
6167                 goto out_destroy_fcp_wq;
6168         }
6169         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6170                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6171                         "parent cq-id=%d\n",
6172                         phba->sli4_hba.hdr_rq->queue_id,
6173                         phba->sli4_hba.dat_rq->queue_id,
6174                         phba->sli4_hba.els_cq->queue_id);
6175         return 0;
6176
6177 out_destroy_fcp_wq:
6178         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6179                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6180         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6181 out_destroy_mbx_wq:
6182         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6183 out_destroy_fcp_cq:
6184         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6185                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6186         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6187 out_destroy_mbx_cq:
6188         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6189 out_destroy_fp_eq:
6190         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6191                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6192         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6193 out_error:
6194         return rc;
6195 }
6196
6197 /**
6198  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6199  * @phba: pointer to lpfc hba data structure.
6200  *
6201  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6202  * operation.
6203  *
6204  * Return codes
6205  *      0 - successful
6206  *      -ENOMEM - No availble memory
6207  *      -EIO - The mailbox failed to complete successfully.
6208  **/
6209 void
6210 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6211 {
6212         int fcp_qidx;
6213
6214         /* Unset mailbox command work queue */
6215         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6216         /* Unset ELS work queue */
6217         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6218         /* Unset unsolicited receive queue */
6219         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6220         /* Unset FCP work queue */
6221         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6222                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6223         /* Unset mailbox command complete queue */
6224         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6225         /* Unset ELS complete queue */
6226         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6227         /* Unset FCP response complete queue */
6228         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6229                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6230         /* Unset fast-path event queue */
6231         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6232                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6233         /* Unset slow-path event queue */
6234         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6235 }
6236
6237 /**
6238  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6239  * @phba: pointer to lpfc hba data structure.
6240  *
6241  * This routine is invoked to allocate and set up a pool of completion queue
6242  * events. The body of the completion queue event is a completion queue entry
6243  * CQE. For now, this pool is used for the interrupt service routine to queue
6244  * the following HBA completion queue events for the worker thread to process:
6245  *   - Mailbox asynchronous events
6246  *   - Receive queue completion unsolicited events
6247  * Later, this can be used for all the slow-path events.
6248  *
6249  * Return codes
6250  *      0 - successful
6251  *      -ENOMEM - No availble memory
6252  **/
6253 static int
6254 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6255 {
6256         struct lpfc_cq_event *cq_event;
6257         int i;
6258
6259         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6260                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6261                 if (!cq_event)
6262                         goto out_pool_create_fail;
6263                 list_add_tail(&cq_event->list,
6264                               &phba->sli4_hba.sp_cqe_event_pool);
6265         }
6266         return 0;
6267
6268 out_pool_create_fail:
6269         lpfc_sli4_cq_event_pool_destroy(phba);
6270         return -ENOMEM;
6271 }
6272
6273 /**
6274  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6275  * @phba: pointer to lpfc hba data structure.
6276  *
6277  * This routine is invoked to free the pool of completion queue events at
6278  * driver unload time. Note that, it is the responsibility of the driver
6279  * cleanup routine to free all the outstanding completion-queue events
6280  * allocated from this pool back into the pool before invoking this routine
6281  * to destroy the pool.
6282  **/
6283 static void
6284 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6285 {
6286         struct lpfc_cq_event *cq_event, *next_cq_event;
6287
6288         list_for_each_entry_safe(cq_event, next_cq_event,
6289                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6290                 list_del(&cq_event->list);
6291                 kfree(cq_event);
6292         }
6293 }
6294
6295 /**
6296  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6297  * @phba: pointer to lpfc hba data structure.
6298  *
6299  * This routine is the lock free version of the API invoked to allocate a
6300  * completion-queue event from the free pool.
6301  *
6302  * Return: Pointer to the newly allocated completion-queue event if successful
6303  *         NULL otherwise.
6304  **/
6305 struct lpfc_cq_event *
6306 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6307 {
6308         struct lpfc_cq_event *cq_event = NULL;
6309
6310         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6311                          struct lpfc_cq_event, list);
6312         return cq_event;
6313 }
6314
6315 /**
6316  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6317  * @phba: pointer to lpfc hba data structure.
6318  *
6319  * This routine is the lock version of the API invoked to allocate a
6320  * completion-queue event from the free pool.
6321  *
6322  * Return: Pointer to the newly allocated completion-queue event if successful
6323  *         NULL otherwise.
6324  **/
6325 struct lpfc_cq_event *
6326 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6327 {
6328         struct lpfc_cq_event *cq_event;
6329         unsigned long iflags;
6330
6331         spin_lock_irqsave(&phba->hbalock, iflags);
6332         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6333         spin_unlock_irqrestore(&phba->hbalock, iflags);
6334         return cq_event;
6335 }
6336
6337 /**
6338  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6339  * @phba: pointer to lpfc hba data structure.
6340  * @cq_event: pointer to the completion queue event to be freed.
6341  *
6342  * This routine is the lock free version of the API invoked to release a
6343  * completion-queue event back into the free pool.
6344  **/
6345 void
6346 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6347                              struct lpfc_cq_event *cq_event)
6348 {
6349         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6350 }
6351
6352 /**
6353  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6354  * @phba: pointer to lpfc hba data structure.
6355  * @cq_event: pointer to the completion queue event to be freed.
6356  *
6357  * This routine is the lock version of the API invoked to release a
6358  * completion-queue event back into the free pool.
6359  **/
6360 void
6361 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6362                            struct lpfc_cq_event *cq_event)
6363 {
6364         unsigned long iflags;
6365         spin_lock_irqsave(&phba->hbalock, iflags);
6366         __lpfc_sli4_cq_event_release(phba, cq_event);
6367         spin_unlock_irqrestore(&phba->hbalock, iflags);
6368 }
6369
6370 /**
6371  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6372  * @phba: pointer to lpfc hba data structure.
6373  *
6374  * This routine is to free all the pending completion-queue events to the
6375  * back into the free pool for device reset.
6376  **/
6377 static void
6378 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6379 {
6380         LIST_HEAD(cqelist);
6381         struct lpfc_cq_event *cqe;
6382         unsigned long iflags;
6383
6384         /* Retrieve all the pending WCQEs from pending WCQE lists */
6385         spin_lock_irqsave(&phba->hbalock, iflags);
6386         /* Pending FCP XRI abort events */
6387         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6388                          &cqelist);
6389         /* Pending ELS XRI abort events */
6390         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6391                          &cqelist);
6392         /* Pending asynnc events */
6393         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6394                          &cqelist);
6395         spin_unlock_irqrestore(&phba->hbalock, iflags);
6396
6397         while (!list_empty(&cqelist)) {
6398                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6399                 lpfc_sli4_cq_event_release(phba, cqe);
6400         }
6401 }
6402
6403 /**
6404  * lpfc_pci_function_reset - Reset pci function.
6405  * @phba: pointer to lpfc hba data structure.
6406  *
6407  * This routine is invoked to request a PCI function reset. It will destroys
6408  * all resources assigned to the PCI function which originates this request.
6409  *
6410  * Return codes
6411  *      0 - successful
6412  *      -ENOMEM - No availble memory
6413  *      -EIO - The mailbox failed to complete successfully.
6414  **/
6415 int
6416 lpfc_pci_function_reset(struct lpfc_hba *phba)
6417 {
6418         LPFC_MBOXQ_t *mboxq;
6419         uint32_t rc = 0;
6420         uint32_t shdr_status, shdr_add_status;
6421         union lpfc_sli4_cfg_shdr *shdr;
6422
6423         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6424         if (!mboxq) {
6425                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6426                                 "0494 Unable to allocate memory for issuing "
6427                                 "SLI_FUNCTION_RESET mailbox command\n");
6428                 return -ENOMEM;
6429         }
6430
6431         /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6432         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6433                          LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6434                          LPFC_SLI4_MBX_EMBED);
6435         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6436         shdr = (union lpfc_sli4_cfg_shdr *)
6437                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6438         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6439         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6440         if (rc != MBX_TIMEOUT)
6441                 mempool_free(mboxq, phba->mbox_mem_pool);
6442         if (shdr_status || shdr_add_status || rc) {
6443                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6444                                 "0495 SLI_FUNCTION_RESET mailbox failed with "
6445                                 "status x%x add_status x%x, mbx status x%x\n",
6446                                 shdr_status, shdr_add_status, rc);
6447                 rc = -ENXIO;
6448         }
6449         return rc;
6450 }
6451
6452 /**
6453  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6454  * @phba: pointer to lpfc hba data structure.
6455  * @cnt: number of nop mailbox commands to send.
6456  *
6457  * This routine is invoked to send a number @cnt of NOP mailbox command and
6458  * wait for each command to complete.
6459  *
6460  * Return: the number of NOP mailbox command completed.
6461  **/
6462 static int
6463 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6464 {
6465         LPFC_MBOXQ_t *mboxq;
6466         int length, cmdsent;
6467         uint32_t mbox_tmo;
6468         uint32_t rc = 0;
6469         uint32_t shdr_status, shdr_add_status;
6470         union lpfc_sli4_cfg_shdr *shdr;
6471
6472         if (cnt == 0) {
6473                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6474                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6475                 return cnt;
6476         }
6477
6478         mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6479         if (!mboxq) {
6480                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6481                                 "2519 Unable to allocate memory for issuing "
6482                                 "NOP mailbox command\n");
6483                 return 0;
6484         }
6485
6486         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6487         length = (sizeof(struct lpfc_mbx_nop) -
6488                   sizeof(struct lpfc_sli4_cfg_mhdr));
6489         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6490                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6491
6492         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6493         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6494                 if (!phba->sli4_hba.intr_enable)
6495                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6496                 else
6497                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6498                 if (rc == MBX_TIMEOUT)
6499                         break;
6500                 /* Check return status */
6501                 shdr = (union lpfc_sli4_cfg_shdr *)
6502                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6503                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6504                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6505                                          &shdr->response);
6506                 if (shdr_status || shdr_add_status || rc) {
6507                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6508                                         "2520 NOP mailbox command failed "
6509                                         "status x%x add_status x%x mbx "
6510                                         "status x%x\n", shdr_status,
6511                                         shdr_add_status, rc);
6512                         break;
6513                 }
6514         }
6515
6516         if (rc != MBX_TIMEOUT)
6517                 mempool_free(mboxq, phba->mbox_mem_pool);
6518
6519         return cmdsent;
6520 }
6521
6522 /**
6523  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6524  * @phba: pointer to lpfc hba data structure.
6525  *
6526  * This routine is invoked to set up the PCI device memory space for device
6527  * with SLI-4 interface spec.
6528  *
6529  * Return codes
6530  *      0 - successful
6531  *      other values - error
6532  **/
6533 static int
6534 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6535 {
6536         struct pci_dev *pdev;
6537         unsigned long bar0map_len, bar1map_len, bar2map_len;
6538         int error = -ENODEV;
6539
6540         /* Obtain PCI device reference */
6541         if (!phba->pcidev)
6542                 return error;
6543         else
6544                 pdev = phba->pcidev;
6545
6546         /* Set the device DMA mask size */
6547         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6548          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6549                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6550                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6551                         return error;
6552                 }
6553         }
6554
6555         /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6556          * number of bytes required by each mapping. They are actually
6557          * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6558          */
6559         if (pci_resource_start(pdev, 0)) {
6560                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6561                 bar0map_len = pci_resource_len(pdev, 0);
6562         } else {
6563                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6564                 bar0map_len = pci_resource_len(pdev, 1);
6565         }
6566         phba->pci_bar1_map = pci_resource_start(pdev, 2);
6567         bar1map_len = pci_resource_len(pdev, 2);
6568
6569         phba->pci_bar2_map = pci_resource_start(pdev, 4);
6570         bar2map_len = pci_resource_len(pdev, 4);
6571
6572         /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6573         phba->sli4_hba.conf_regs_memmap_p =
6574                                 ioremap(phba->pci_bar0_map, bar0map_len);
6575         if (!phba->sli4_hba.conf_regs_memmap_p) {
6576                 dev_printk(KERN_ERR, &pdev->dev,
6577                            "ioremap failed for SLI4 PCI config registers.\n");
6578                 goto out;
6579         }
6580
6581         /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6582         phba->sli4_hba.ctrl_regs_memmap_p =
6583                                 ioremap(phba->pci_bar1_map, bar1map_len);
6584         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6585                 dev_printk(KERN_ERR, &pdev->dev,
6586                            "ioremap failed for SLI4 HBA control registers.\n");
6587                 goto out_iounmap_conf;
6588         }
6589
6590         /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6591         phba->sli4_hba.drbl_regs_memmap_p =
6592                                 ioremap(phba->pci_bar2_map, bar2map_len);
6593         if (!phba->sli4_hba.drbl_regs_memmap_p) {
6594                 dev_printk(KERN_ERR, &pdev->dev,
6595                            "ioremap failed for SLI4 HBA doorbell registers.\n");
6596                 goto out_iounmap_ctrl;
6597         }
6598
6599         /* Set up BAR0 PCI config space register memory map */
6600         lpfc_sli4_bar0_register_memmap(phba);
6601
6602         /* Set up BAR1 register memory map */
6603         lpfc_sli4_bar1_register_memmap(phba);
6604
6605         /* Set up BAR2 register memory map */
6606         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6607         if (error)
6608                 goto out_iounmap_all;
6609
6610         return 0;
6611
6612 out_iounmap_all:
6613         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6614 out_iounmap_ctrl:
6615         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6616 out_iounmap_conf:
6617         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6618 out:
6619         return error;
6620 }
6621
6622 /**
6623  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6624  * @phba: pointer to lpfc hba data structure.
6625  *
6626  * This routine is invoked to unset the PCI device memory space for device
6627  * with SLI-4 interface spec.
6628  **/
6629 static void
6630 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6631 {
6632         struct pci_dev *pdev;
6633
6634         /* Obtain PCI device reference */
6635         if (!phba->pcidev)
6636                 return;
6637         else
6638                 pdev = phba->pcidev;
6639
6640         /* Free coherent DMA memory allocated */
6641
6642         /* Unmap I/O memory space */
6643         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6644         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6645         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6646
6647         return;
6648 }
6649
6650 /**
6651  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6652  * @phba: pointer to lpfc hba data structure.
6653  *
6654  * This routine is invoked to enable the MSI-X interrupt vectors to device
6655  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6656  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6657  * invoked, enables either all or nothing, depending on the current
6658  * availability of PCI vector resources. The device driver is responsible
6659  * for calling the individual request_irq() to register each MSI-X vector
6660  * with a interrupt handler, which is done in this function. Note that
6661  * later when device is unloading, the driver should always call free_irq()
6662  * on all MSI-X vectors it has done request_irq() on before calling
6663  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6664  * will be left with MSI-X enabled and leaks its vectors.
6665  *
6666  * Return codes
6667  *   0 - successful
6668  *   other values - error
6669  **/
6670 static int
6671 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6672 {
6673         int rc, i;
6674         LPFC_MBOXQ_t *pmb;
6675
6676         /* Set up MSI-X multi-message vectors */
6677         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6678                 phba->msix_entries[i].entry = i;
6679
6680         /* Configure MSI-X capability structure */
6681         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6682                                 ARRAY_SIZE(phba->msix_entries));
6683         if (rc) {
6684                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6685                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
6686                 goto msi_fail_out;
6687         }
6688         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6689                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6690                                 "0477 MSI-X entry[%d]: vector=x%x "
6691                                 "message=%d\n", i,
6692                                 phba->msix_entries[i].vector,
6693                                 phba->msix_entries[i].entry);
6694         /*
6695          * Assign MSI-X vectors to interrupt handlers
6696          */
6697
6698         /* vector-0 is associated to slow-path handler */
6699         rc = request_irq(phba->msix_entries[0].vector,
6700                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6701                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6702         if (rc) {
6703                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6704                                 "0421 MSI-X slow-path request_irq failed "
6705                                 "(%d)\n", rc);
6706                 goto msi_fail_out;
6707         }
6708
6709         /* vector-1 is associated to fast-path handler */
6710         rc = request_irq(phba->msix_entries[1].vector,
6711                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6712                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
6713
6714         if (rc) {
6715                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6716                                 "0429 MSI-X fast-path request_irq failed "
6717                                 "(%d)\n", rc);
6718                 goto irq_fail_out;
6719         }
6720
6721         /*
6722          * Configure HBA MSI-X attention conditions to messages
6723          */
6724         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6725
6726         if (!pmb) {
6727                 rc = -ENOMEM;
6728                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6729                                 "0474 Unable to allocate memory for issuing "
6730                                 "MBOX_CONFIG_MSI command\n");
6731                 goto mem_fail_out;
6732         }
6733         rc = lpfc_config_msi(phba, pmb);
6734         if (rc)
6735                 goto mbx_fail_out;
6736         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6737         if (rc != MBX_SUCCESS) {
6738                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6739                                 "0351 Config MSI mailbox command failed, "
6740                                 "mbxCmd x%x, mbxStatus x%x\n",
6741                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6742                 goto mbx_fail_out;
6743         }
6744
6745         /* Free memory allocated for mailbox command */
6746         mempool_free(pmb, phba->mbox_mem_pool);
6747         return rc;
6748
6749 mbx_fail_out:
6750         /* Free memory allocated for mailbox command */
6751         mempool_free(pmb, phba->mbox_mem_pool);
6752
6753 mem_fail_out:
6754         /* free the irq already requested */
6755         free_irq(phba->msix_entries[1].vector, phba);
6756
6757 irq_fail_out:
6758         /* free the irq already requested */
6759         free_irq(phba->msix_entries[0].vector, phba);
6760
6761 msi_fail_out:
6762         /* Unconfigure MSI-X capability structure */
6763         pci_disable_msix(phba->pcidev);
6764         return rc;
6765 }
6766
6767 /**
6768  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6769  * @phba: pointer to lpfc hba data structure.
6770  *
6771  * This routine is invoked to release the MSI-X vectors and then disable the
6772  * MSI-X interrupt mode to device with SLI-3 interface spec.
6773  **/
6774 static void
6775 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6776 {
6777         int i;
6778
6779         /* Free up MSI-X multi-message vectors */
6780         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6781                 free_irq(phba->msix_entries[i].vector, phba);
6782         /* Disable MSI-X */
6783         pci_disable_msix(phba->pcidev);
6784
6785         return;
6786 }
6787
6788 /**
6789  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6790  * @phba: pointer to lpfc hba data structure.
6791  *
6792  * This routine is invoked to enable the MSI interrupt mode to device with
6793  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6794  * enable the MSI vector. The device driver is responsible for calling the
6795  * request_irq() to register MSI vector with a interrupt the handler, which
6796  * is done in this function.
6797  *
6798  * Return codes
6799  *      0 - successful
6800  *      other values - error
6801  */
6802 static int
6803 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6804 {
6805         int rc;
6806
6807         rc = pci_enable_msi(phba->pcidev);
6808         if (!rc)
6809                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6810                                 "0462 PCI enable MSI mode success.\n");
6811         else {
6812                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6813                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
6814                 return rc;
6815         }
6816
6817         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6818                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6819         if (rc) {
6820                 pci_disable_msi(phba->pcidev);
6821                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6822                                 "0478 MSI request_irq failed (%d)\n", rc);
6823         }
6824         return rc;
6825 }
6826
6827 /**
6828  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6829  * @phba: pointer to lpfc hba data structure.
6830  *
6831  * This routine is invoked to disable the MSI interrupt mode to device with
6832  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6833  * done request_irq() on before calling pci_disable_msi(). Failure to do so
6834  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6835  * its vector.
6836  */
6837 static void
6838 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6839 {
6840         free_irq(phba->pcidev->irq, phba);
6841         pci_disable_msi(phba->pcidev);
6842         return;
6843 }
6844
6845 /**
6846  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6847  * @phba: pointer to lpfc hba data structure.
6848  *
6849  * This routine is invoked to enable device interrupt and associate driver's
6850  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6851  * spec. Depends on the interrupt mode configured to the driver, the driver
6852  * will try to fallback from the configured interrupt mode to an interrupt
6853  * mode which is supported by the platform, kernel, and device in the order
6854  * of:
6855  * MSI-X -> MSI -> IRQ.
6856  *
6857  * Return codes
6858  *   0 - successful
6859  *   other values - error
6860  **/
6861 static uint32_t
6862 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6863 {
6864         uint32_t intr_mode = LPFC_INTR_ERROR;
6865         int retval;
6866
6867         if (cfg_mode == 2) {
6868                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6869                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6870                 if (!retval) {
6871                         /* Now, try to enable MSI-X interrupt mode */
6872                         retval = lpfc_sli_enable_msix(phba);
6873                         if (!retval) {
6874                                 /* Indicate initialization to MSI-X mode */
6875                                 phba->intr_type = MSIX;
6876                                 intr_mode = 2;
6877                         }
6878                 }
6879         }
6880
6881         /* Fallback to MSI if MSI-X initialization failed */
6882         if (cfg_mode >= 1 && phba->intr_type == NONE) {
6883                 retval = lpfc_sli_enable_msi(phba);
6884                 if (!retval) {
6885                         /* Indicate initialization to MSI mode */
6886                         phba->intr_type = MSI;
6887                         intr_mode = 1;
6888                 }
6889         }
6890
6891         /* Fallback to INTx if both MSI-X/MSI initalization failed */
6892         if (phba->intr_type == NONE) {
6893                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6894                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6895                 if (!retval) {
6896                         /* Indicate initialization to INTx mode */
6897                         phba->intr_type = INTx;
6898                         intr_mode = 0;
6899                 }
6900         }
6901         return intr_mode;
6902 }
6903
6904 /**
6905  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6906  * @phba: pointer to lpfc hba data structure.
6907  *
6908  * This routine is invoked to disable device interrupt and disassociate the
6909  * driver's interrupt handler(s) from interrupt vector(s) to device with
6910  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6911  * release the interrupt vector(s) for the message signaled interrupt.
6912  **/
6913 static void
6914 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6915 {
6916         /* Disable the currently initialized interrupt mode */
6917         if (phba->intr_type == MSIX)
6918                 lpfc_sli_disable_msix(phba);
6919         else if (phba->intr_type == MSI)
6920                 lpfc_sli_disable_msi(phba);
6921         else if (phba->intr_type == INTx)
6922                 free_irq(phba->pcidev->irq, phba);
6923
6924         /* Reset interrupt management states */
6925         phba->intr_type = NONE;
6926         phba->sli.slistat.sli_intr = 0;
6927
6928         return;
6929 }
6930
6931 /**
6932  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6933  * @phba: pointer to lpfc hba data structure.
6934  *
6935  * This routine is invoked to enable the MSI-X interrupt vectors to device
6936  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6937  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6938  * enables either all or nothing, depending on the current availability of
6939  * PCI vector resources. The device driver is responsible for calling the
6940  * individual request_irq() to register each MSI-X vector with a interrupt
6941  * handler, which is done in this function. Note that later when device is
6942  * unloading, the driver should always call free_irq() on all MSI-X vectors
6943  * it has done request_irq() on before calling pci_disable_msix(). Failure
6944  * to do so results in a BUG_ON() and a device will be left with MSI-X
6945  * enabled and leaks its vectors.
6946  *
6947  * Return codes
6948  * 0 - successful
6949  * other values - error
6950  **/
6951 static int
6952 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6953 {
6954         int vectors, rc, index;
6955
6956         /* Set up MSI-X multi-message vectors */
6957         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6958                 phba->sli4_hba.msix_entries[index].entry = index;
6959
6960         /* Configure MSI-X capability structure */
6961         vectors = phba->sli4_hba.cfg_eqn;
6962 enable_msix_vectors:
6963         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6964                              vectors);
6965         if (rc > 1) {
6966                 vectors = rc;
6967                 goto enable_msix_vectors;
6968         } else if (rc) {
6969                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6970                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
6971                 goto msi_fail_out;
6972         }
6973
6974         /* Log MSI-X vector assignment */
6975         for (index = 0; index < vectors; index++)
6976                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6977                                 "0489 MSI-X entry[%d]: vector=x%x "
6978                                 "message=%d\n", index,
6979                                 phba->sli4_hba.msix_entries[index].vector,
6980                                 phba->sli4_hba.msix_entries[index].entry);
6981         /*
6982          * Assign MSI-X vectors to interrupt handlers
6983          */
6984
6985         /* The first vector must associated to slow-path handler for MQ */
6986         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6987                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6988                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6989         if (rc) {
6990                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6991                                 "0485 MSI-X slow-path request_irq failed "
6992                                 "(%d)\n", rc);
6993                 goto msi_fail_out;
6994         }
6995
6996         /* The rest of the vector(s) are associated to fast-path handler(s) */
6997         for (index = 1; index < vectors; index++) {
6998                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6999                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
7000                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
7001                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
7002                                  LPFC_FP_DRIVER_HANDLER_NAME,
7003                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7004                 if (rc) {
7005                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7006                                         "0486 MSI-X fast-path (%d) "
7007                                         "request_irq failed (%d)\n", index, rc);
7008                         goto cfg_fail_out;
7009                 }
7010         }
7011         phba->sli4_hba.msix_vec_nr = vectors;
7012
7013         return rc;
7014
7015 cfg_fail_out:
7016         /* free the irq already requested */
7017         for (--index; index >= 1; index--)
7018                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7019                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7020
7021         /* free the irq already requested */
7022         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7023
7024 msi_fail_out:
7025         /* Unconfigure MSI-X capability structure */
7026         pci_disable_msix(phba->pcidev);
7027         return rc;
7028 }
7029
7030 /**
7031  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7032  * @phba: pointer to lpfc hba data structure.
7033  *
7034  * This routine is invoked to release the MSI-X vectors and then disable the
7035  * MSI-X interrupt mode to device with SLI-4 interface spec.
7036  **/
7037 static void
7038 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7039 {
7040         int index;
7041
7042         /* Free up MSI-X multi-message vectors */
7043         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7044
7045         for (index = 1; index < phba->sli4_hba.msix_vec_nr; index++)
7046                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7047                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7048
7049         /* Disable MSI-X */
7050         pci_disable_msix(phba->pcidev);
7051
7052         return;
7053 }
7054
7055 /**
7056  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7057  * @phba: pointer to lpfc hba data structure.
7058  *
7059  * This routine is invoked to enable the MSI interrupt mode to device with
7060  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7061  * to enable the MSI vector. The device driver is responsible for calling
7062  * the request_irq() to register MSI vector with a interrupt the handler,
7063  * which is done in this function.
7064  *
7065  * Return codes
7066  *      0 - successful
7067  *      other values - error
7068  **/
7069 static int
7070 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7071 {
7072         int rc, index;
7073
7074         rc = pci_enable_msi(phba->pcidev);
7075         if (!rc)
7076                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7077                                 "0487 PCI enable MSI mode success.\n");
7078         else {
7079                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7080                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7081                 return rc;
7082         }
7083
7084         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7085                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7086         if (rc) {
7087                 pci_disable_msi(phba->pcidev);
7088                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7089                                 "0490 MSI request_irq failed (%d)\n", rc);
7090                 return rc;
7091         }
7092
7093         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7094                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7095                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7096         }
7097
7098         return 0;
7099 }
7100
7101 /**
7102  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7103  * @phba: pointer to lpfc hba data structure.
7104  *
7105  * This routine is invoked to disable the MSI interrupt mode to device with
7106  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7107  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7108  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7109  * its vector.
7110  **/
7111 static void
7112 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7113 {
7114         free_irq(phba->pcidev->irq, phba);
7115         pci_disable_msi(phba->pcidev);
7116         return;
7117 }
7118
7119 /**
7120  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7121  * @phba: pointer to lpfc hba data structure.
7122  *
7123  * This routine is invoked to enable device interrupt and associate driver's
7124  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7125  * interface spec. Depends on the interrupt mode configured to the driver,
7126  * the driver will try to fallback from the configured interrupt mode to an
7127  * interrupt mode which is supported by the platform, kernel, and device in
7128  * the order of:
7129  * MSI-X -> MSI -> IRQ.
7130  *
7131  * Return codes
7132  *      0 - successful
7133  *      other values - error
7134  **/
7135 static uint32_t
7136 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7137 {
7138         uint32_t intr_mode = LPFC_INTR_ERROR;
7139         int retval, index;
7140
7141         if (cfg_mode == 2) {
7142                 /* Preparation before conf_msi mbox cmd */
7143                 retval = 0;
7144                 if (!retval) {
7145                         /* Now, try to enable MSI-X interrupt mode */
7146                         retval = lpfc_sli4_enable_msix(phba);
7147                         if (!retval) {
7148                                 /* Indicate initialization to MSI-X mode */
7149                                 phba->intr_type = MSIX;
7150                                 intr_mode = 2;
7151                         }
7152                 }
7153         }
7154
7155         /* Fallback to MSI if MSI-X initialization failed */
7156         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7157                 retval = lpfc_sli4_enable_msi(phba);
7158                 if (!retval) {
7159                         /* Indicate initialization to MSI mode */
7160                         phba->intr_type = MSI;
7161                         intr_mode = 1;
7162                 }
7163         }
7164
7165         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7166         if (phba->intr_type == NONE) {
7167                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7168                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7169                 if (!retval) {
7170                         /* Indicate initialization to INTx mode */
7171                         phba->intr_type = INTx;
7172                         intr_mode = 0;
7173                         for (index = 0; index < phba->cfg_fcp_eq_count;
7174                              index++) {
7175                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7176                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7177                         }
7178                 }
7179         }
7180         return intr_mode;
7181 }
7182
7183 /**
7184  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7185  * @phba: pointer to lpfc hba data structure.
7186  *
7187  * This routine is invoked to disable device interrupt and disassociate
7188  * the driver's interrupt handler(s) from interrupt vector(s) to device
7189  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7190  * will release the interrupt vector(s) for the message signaled interrupt.
7191  **/
7192 static void
7193 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7194 {
7195         /* Disable the currently initialized interrupt mode */
7196         if (phba->intr_type == MSIX)
7197                 lpfc_sli4_disable_msix(phba);
7198         else if (phba->intr_type == MSI)
7199                 lpfc_sli4_disable_msi(phba);
7200         else if (phba->intr_type == INTx)
7201                 free_irq(phba->pcidev->irq, phba);
7202
7203         /* Reset interrupt management states */
7204         phba->intr_type = NONE;
7205         phba->sli.slistat.sli_intr = 0;
7206
7207         return;
7208 }
7209
7210 /**
7211  * lpfc_unset_hba - Unset SLI3 hba device initialization
7212  * @phba: pointer to lpfc hba data structure.
7213  *
7214  * This routine is invoked to unset the HBA device initialization steps to
7215  * a device with SLI-3 interface spec.
7216  **/
7217 static void
7218 lpfc_unset_hba(struct lpfc_hba *phba)
7219 {
7220         struct lpfc_vport *vport = phba->pport;
7221         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7222
7223         spin_lock_irq(shost->host_lock);
7224         vport->load_flag |= FC_UNLOADING;
7225         spin_unlock_irq(shost->host_lock);
7226
7227         lpfc_stop_hba_timers(phba);
7228
7229         phba->pport->work_port_events = 0;
7230
7231         lpfc_sli_hba_down(phba);
7232
7233         lpfc_sli_brdrestart(phba);
7234
7235         lpfc_sli_disable_intr(phba);
7236
7237         return;
7238 }
7239
7240 /**
7241  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7242  * @phba: pointer to lpfc hba data structure.
7243  *
7244  * This routine is invoked to unset the HBA device initialization steps to
7245  * a device with SLI-4 interface spec.
7246  **/
7247 static void
7248 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7249 {
7250         struct lpfc_vport *vport = phba->pport;
7251         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7252
7253         spin_lock_irq(shost->host_lock);
7254         vport->load_flag |= FC_UNLOADING;
7255         spin_unlock_irq(shost->host_lock);
7256
7257         phba->pport->work_port_events = 0;
7258
7259         /* Stop the SLI4 device port */
7260         lpfc_stop_port(phba);
7261
7262         lpfc_sli4_disable_intr(phba);
7263
7264         /* Reset SLI4 HBA FCoE function */
7265         lpfc_pci_function_reset(phba);
7266
7267         return;
7268 }
7269
7270 /**
7271  * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy
7272  * @phba: Pointer to HBA context object.
7273  *
7274  * This function is called in the SLI4 code path to wait for completion
7275  * of device's XRIs exchange busy. It will check the XRI exchange busy
7276  * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after
7277  * that, it will check the XRI exchange busy on outstanding FCP and ELS
7278  * I/Os every 30 seconds, log error message, and wait forever. Only when
7279  * all XRI exchange busy complete, the driver unload shall proceed with
7280  * invoking the function reset ioctl mailbox command to the CNA and the
7281  * the rest of the driver unload resource release.
7282  **/
7283 static void
7284 lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba)
7285 {
7286         int wait_time = 0;
7287         int fcp_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7288         int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7289
7290         while (!fcp_xri_cmpl || !els_xri_cmpl) {
7291                 if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) {
7292                         if (!fcp_xri_cmpl)
7293                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7294                                                 "2877 FCP XRI exchange busy "
7295                                                 "wait time: %d seconds.\n",
7296                                                 wait_time/1000);
7297                         if (!els_xri_cmpl)
7298                                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7299                                                 "2878 ELS XRI exchange busy "
7300                                                 "wait time: %d seconds.\n",
7301                                                 wait_time/1000);
7302                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2);
7303                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2;
7304                 } else {
7305                         msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1);
7306                         wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1;
7307                 }
7308                 fcp_xri_cmpl =
7309                         list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
7310                 els_xri_cmpl =
7311                         list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list);
7312         }
7313 }
7314
7315 /**
7316  * lpfc_sli4_hba_unset - Unset the fcoe hba
7317  * @phba: Pointer to HBA context object.
7318  *
7319  * This function is called in the SLI4 code path to reset the HBA's FCoE
7320  * function. The caller is not required to hold any lock. This routine
7321  * issues PCI function reset mailbox command to reset the FCoE function.
7322  * At the end of the function, it calls lpfc_hba_down_post function to
7323  * free any pending commands.
7324  **/
7325 static void
7326 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7327 {
7328         int wait_cnt = 0;
7329         LPFC_MBOXQ_t *mboxq;
7330
7331         lpfc_stop_hba_timers(phba);
7332         phba->sli4_hba.intr_enable = 0;
7333
7334         /*
7335          * Gracefully wait out the potential current outstanding asynchronous
7336          * mailbox command.
7337          */
7338
7339         /* First, block any pending async mailbox command from posted */
7340         spin_lock_irq(&phba->hbalock);
7341         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7342         spin_unlock_irq(&phba->hbalock);
7343         /* Now, trying to wait it out if we can */
7344         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7345                 msleep(10);
7346                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7347                         break;
7348         }
7349         /* Forcefully release the outstanding mailbox command if timed out */
7350         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7351                 spin_lock_irq(&phba->hbalock);
7352                 mboxq = phba->sli.mbox_active;
7353                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7354                 __lpfc_mbox_cmpl_put(phba, mboxq);
7355                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7356                 phba->sli.mbox_active = NULL;
7357                 spin_unlock_irq(&phba->hbalock);
7358         }
7359
7360         /* Abort all iocbs associated with the hba */
7361         lpfc_sli_hba_iocb_abort(phba);
7362
7363         /* Wait for completion of device XRI exchange busy */
7364         lpfc_sli4_xri_exchange_busy_wait(phba);
7365
7366         /* Disable PCI subsystem interrupt */
7367         lpfc_sli4_disable_intr(phba);
7368
7369         /* Stop kthread signal shall trigger work_done one more time */
7370         kthread_stop(phba->worker_thread);
7371
7372         /* Reset SLI4 HBA FCoE function */
7373         lpfc_pci_function_reset(phba);
7374
7375         /* Stop the SLI4 device port */
7376         phba->pport->work_port_events = 0;
7377 }
7378
7379  /**
7380  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7381  * @phba: Pointer to HBA context object.
7382  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7383  *
7384  * This function is called in the SLI4 code path to read the port's
7385  * sli4 capabilities.
7386  *
7387  * This function may be be called from any context that can block-wait
7388  * for the completion.  The expectation is that this routine is called
7389  * typically from probe_one or from the online routine.
7390  **/
7391 int
7392 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7393 {
7394         int rc;
7395         struct lpfc_mqe *mqe;
7396         struct lpfc_pc_sli4_params *sli4_params;
7397         uint32_t mbox_tmo;
7398
7399         rc = 0;
7400         mqe = &mboxq->u.mqe;
7401
7402         /* Read the port's SLI4 Parameters port capabilities */
7403         lpfc_sli4_params(mboxq);
7404         if (!phba->sli4_hba.intr_enable)
7405                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7406         else {
7407                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7408                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7409         }
7410
7411         if (unlikely(rc))
7412                 return 1;
7413
7414         sli4_params = &phba->sli4_hba.pc_sli4_params;
7415         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7416         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7417         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7418         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7419                                              &mqe->un.sli4_params);
7420         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7421                                              &mqe->un.sli4_params);
7422         sli4_params->proto_types = mqe->un.sli4_params.word3;
7423         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7424         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7425         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7426         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7427         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7428         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7429         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7430         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7431         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7432         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7433         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7434         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7435         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7436         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7437         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7438         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7439         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7440         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7441         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7442         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7443         return rc;
7444 }
7445
7446 /**
7447  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7448  * @pdev: pointer to PCI device
7449  * @pid: pointer to PCI device identifier
7450  *
7451  * This routine is to be called to attach a device with SLI-3 interface spec
7452  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7453  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7454  * information of the device and driver to see if the driver state that it can
7455  * support this kind of device. If the match is successful, the driver core
7456  * invokes this routine. If this routine determines it can claim the HBA, it
7457  * does all the initialization that it needs to do to handle the HBA properly.
7458  *
7459  * Return code
7460  *      0 - driver can claim the device
7461  *      negative value - driver can not claim the device
7462  **/
7463 static int __devinit
7464 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7465 {
7466         struct lpfc_hba   *phba;
7467         struct lpfc_vport *vport = NULL;
7468         struct Scsi_Host  *shost = NULL;
7469         int error;
7470         uint32_t cfg_mode, intr_mode;
7471
7472         /* Allocate memory for HBA structure */
7473         phba = lpfc_hba_alloc(pdev);
7474         if (!phba)
7475                 return -ENOMEM;
7476
7477         /* Perform generic PCI device enabling operation */
7478         error = lpfc_enable_pci_dev(phba);
7479         if (error) {
7480                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7481                                 "1401 Failed to enable pci device.\n");
7482                 goto out_free_phba;
7483         }
7484
7485         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7486         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7487         if (error)
7488                 goto out_disable_pci_dev;
7489
7490         /* Set up SLI-3 specific device PCI memory space */
7491         error = lpfc_sli_pci_mem_setup(phba);
7492         if (error) {
7493                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7494                                 "1402 Failed to set up pci memory space.\n");
7495                 goto out_disable_pci_dev;
7496         }
7497
7498         /* Set up phase-1 common device driver resources */
7499         error = lpfc_setup_driver_resource_phase1(phba);
7500         if (error) {
7501                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7502                                 "1403 Failed to set up driver resource.\n");
7503                 goto out_unset_pci_mem_s3;
7504         }
7505
7506         /* Set up SLI-3 specific device driver resources */
7507         error = lpfc_sli_driver_resource_setup(phba);
7508         if (error) {
7509                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7510                                 "1404 Failed to set up driver resource.\n");
7511                 goto out_unset_pci_mem_s3;
7512         }
7513
7514         /* Initialize and populate the iocb list per host */
7515         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7516         if (error) {
7517                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7518                                 "1405 Failed to initialize iocb list.\n");
7519                 goto out_unset_driver_resource_s3;
7520         }
7521
7522         /* Set up common device driver resources */
7523         error = lpfc_setup_driver_resource_phase2(phba);
7524         if (error) {
7525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7526                                 "1406 Failed to set up driver resource.\n");
7527                 goto out_free_iocb_list;
7528         }
7529
7530         /* Create SCSI host to the physical port */
7531         error = lpfc_create_shost(phba);
7532         if (error) {
7533                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7534                                 "1407 Failed to create scsi host.\n");
7535                 goto out_unset_driver_resource;
7536         }
7537
7538         /* Configure sysfs attributes */
7539         vport = phba->pport;
7540         error = lpfc_alloc_sysfs_attr(vport);
7541         if (error) {
7542                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7543                                 "1476 Failed to allocate sysfs attr\n");
7544                 goto out_destroy_shost;
7545         }
7546
7547         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7548         /* Now, trying to enable interrupt and bring up the device */
7549         cfg_mode = phba->cfg_use_msi;
7550         while (true) {
7551                 /* Put device to a known state before enabling interrupt */
7552                 lpfc_stop_port(phba);
7553                 /* Configure and enable interrupt */
7554                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7555                 if (intr_mode == LPFC_INTR_ERROR) {
7556                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7557                                         "0431 Failed to enable interrupt.\n");
7558                         error = -ENODEV;
7559                         goto out_free_sysfs_attr;
7560                 }
7561                 /* SLI-3 HBA setup */
7562                 if (lpfc_sli_hba_setup(phba)) {
7563                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7564                                         "1477 Failed to set up hba\n");
7565                         error = -ENODEV;
7566                         goto out_remove_device;
7567                 }
7568
7569                 /* Wait 50ms for the interrupts of previous mailbox commands */
7570                 msleep(50);
7571                 /* Check active interrupts on message signaled interrupts */
7572                 if (intr_mode == 0 ||
7573                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7574                         /* Log the current active interrupt mode */
7575                         phba->intr_mode = intr_mode;
7576                         lpfc_log_intr_mode(phba, intr_mode);
7577                         break;
7578                 } else {
7579                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7580                                         "0447 Configure interrupt mode (%d) "
7581                                         "failed active interrupt test.\n",
7582                                         intr_mode);
7583                         /* Disable the current interrupt mode */
7584                         lpfc_sli_disable_intr(phba);
7585                         /* Try next level of interrupt mode */
7586                         cfg_mode = --intr_mode;
7587                 }
7588         }
7589
7590         /* Perform post initialization setup */
7591         lpfc_post_init_setup(phba);
7592
7593         /* Check if there are static vports to be created. */
7594         lpfc_create_static_vport(phba);
7595
7596         return 0;
7597
7598 out_remove_device:
7599         lpfc_unset_hba(phba);
7600 out_free_sysfs_attr:
7601         lpfc_free_sysfs_attr(vport);
7602 out_destroy_shost:
7603         lpfc_destroy_shost(phba);
7604 out_unset_driver_resource:
7605         lpfc_unset_driver_resource_phase2(phba);
7606 out_free_iocb_list:
7607         lpfc_free_iocb_list(phba);
7608 out_unset_driver_resource_s3:
7609         lpfc_sli_driver_resource_unset(phba);
7610 out_unset_pci_mem_s3:
7611         lpfc_sli_pci_mem_unset(phba);
7612 out_disable_pci_dev:
7613         lpfc_disable_pci_dev(phba);
7614         if (shost)
7615                 scsi_host_put(shost);
7616 out_free_phba:
7617         lpfc_hba_free(phba);
7618         return error;
7619 }
7620
7621 /**
7622  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7623  * @pdev: pointer to PCI device
7624  *
7625  * This routine is to be called to disattach a device with SLI-3 interface
7626  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7627  * removed from PCI bus, it performs all the necessary cleanup for the HBA
7628  * device to be removed from the PCI subsystem properly.
7629  **/
7630 static void __devexit
7631 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7632 {
7633         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
7634         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7635         struct lpfc_vport **vports;
7636         struct lpfc_hba   *phba = vport->phba;
7637         int i;
7638         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7639
7640         spin_lock_irq(&phba->hbalock);
7641         vport->load_flag |= FC_UNLOADING;
7642         spin_unlock_irq(&phba->hbalock);
7643
7644         lpfc_free_sysfs_attr(vport);
7645
7646         /* Release all the vports against this physical port */
7647         vports = lpfc_create_vport_work_array(phba);
7648         if (vports != NULL)
7649                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7650                         fc_vport_terminate(vports[i]->fc_vport);
7651         lpfc_destroy_vport_work_array(phba, vports);
7652
7653         /* Remove FC host and then SCSI host with the physical port */
7654         fc_remove_host(shost);
7655         scsi_remove_host(shost);
7656         lpfc_cleanup(vport);
7657
7658         /*
7659          * Bring down the SLI Layer. This step disable all interrupts,
7660          * clears the rings, discards all mailbox commands, and resets
7661          * the HBA.
7662          */
7663
7664         /* HBA interrupt will be diabled after this call */
7665         lpfc_sli_hba_down(phba);
7666         /* Stop kthread signal shall trigger work_done one more time */
7667         kthread_stop(phba->worker_thread);
7668         /* Final cleanup of txcmplq and reset the HBA */
7669         lpfc_sli_brdrestart(phba);
7670
7671         lpfc_stop_hba_timers(phba);
7672         spin_lock_irq(&phba->hbalock);
7673         list_del_init(&vport->listentry);
7674         spin_unlock_irq(&phba->hbalock);
7675
7676         lpfc_debugfs_terminate(vport);
7677
7678         /* Disable interrupt */
7679         lpfc_sli_disable_intr(phba);
7680
7681         pci_set_drvdata(pdev, NULL);
7682         scsi_host_put(shost);
7683
7684         /*
7685          * Call scsi_free before mem_free since scsi bufs are released to their
7686          * corresponding pools here.
7687          */
7688         lpfc_scsi_free(phba);
7689         lpfc_mem_free_all(phba);
7690
7691         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7692                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7693
7694         /* Free resources associated with SLI2 interface */
7695         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7696                           phba->slim2p.virt, phba->slim2p.phys);
7697
7698         /* unmap adapter SLIM and Control Registers */
7699         iounmap(phba->ctrl_regs_memmap_p);
7700         iounmap(phba->slim_memmap_p);
7701
7702         lpfc_hba_free(phba);
7703
7704         pci_release_selected_regions(pdev, bars);
7705         pci_disable_device(pdev);
7706 }
7707
7708 /**
7709  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7710  * @pdev: pointer to PCI device
7711  * @msg: power management message
7712  *
7713  * This routine is to be called from the kernel's PCI subsystem to support
7714  * system Power Management (PM) to device with SLI-3 interface spec. When
7715  * PM invokes this method, it quiesces the device by stopping the driver's
7716  * worker thread for the device, turning off device's interrupt and DMA,
7717  * and bring the device offline. Note that as the driver implements the
7718  * minimum PM requirements to a power-aware driver's PM support for the
7719  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7720  * to the suspend() method call will be treated as SUSPEND and the driver will
7721  * fully reinitialize its device during resume() method call, the driver will
7722  * set device to PCI_D3hot state in PCI config space instead of setting it
7723  * according to the @msg provided by the PM.
7724  *
7725  * Return code
7726  *      0 - driver suspended the device
7727  *      Error otherwise
7728  **/
7729 static int
7730 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7731 {
7732         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7733         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7734
7735         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7736                         "0473 PCI device Power Management suspend.\n");
7737
7738         /* Bring down the device */
7739         lpfc_offline_prep(phba);
7740         lpfc_offline(phba);
7741         kthread_stop(phba->worker_thread);
7742
7743         /* Disable interrupt from device */
7744         lpfc_sli_disable_intr(phba);
7745
7746         /* Save device state to PCI config space */
7747         pci_save_state(pdev);
7748         pci_set_power_state(pdev, PCI_D3hot);
7749
7750         return 0;
7751 }
7752
7753 /**
7754  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7755  * @pdev: pointer to PCI device
7756  *
7757  * This routine is to be called from the kernel's PCI subsystem to support
7758  * system Power Management (PM) to device with SLI-3 interface spec. When PM
7759  * invokes this method, it restores the device's PCI config space state and
7760  * fully reinitializes the device and brings it online. Note that as the
7761  * driver implements the minimum PM requirements to a power-aware driver's
7762  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7763  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7764  * driver will fully reinitialize its device during resume() method call,
7765  * the device will be set to PCI_D0 directly in PCI config space before
7766  * restoring the state.
7767  *
7768  * Return code
7769  *      0 - driver suspended the device
7770  *      Error otherwise
7771  **/
7772 static int
7773 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7774 {
7775         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7776         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7777         uint32_t intr_mode;
7778         int error;
7779
7780         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7781                         "0452 PCI device Power Management resume.\n");
7782
7783         /* Restore device state from PCI config space */
7784         pci_set_power_state(pdev, PCI_D0);
7785         pci_restore_state(pdev);
7786
7787         /*
7788          * As the new kernel behavior of pci_restore_state() API call clears
7789          * device saved_state flag, need to save the restored state again.
7790          */
7791         pci_save_state(pdev);
7792
7793         if (pdev->is_busmaster)
7794                 pci_set_master(pdev);
7795
7796         /* Startup the kernel thread for this host adapter. */
7797         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7798                                         "lpfc_worker_%d", phba->brd_no);
7799         if (IS_ERR(phba->worker_thread)) {
7800                 error = PTR_ERR(phba->worker_thread);
7801                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7802                                 "0434 PM resume failed to start worker "
7803                                 "thread: error=x%x.\n", error);
7804                 return error;
7805         }
7806
7807         /* Configure and enable interrupt */
7808         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7809         if (intr_mode == LPFC_INTR_ERROR) {
7810                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7811                                 "0430 PM resume Failed to enable interrupt\n");
7812                 return -EIO;
7813         } else
7814                 phba->intr_mode = intr_mode;
7815
7816         /* Restart HBA and bring it online */
7817         lpfc_sli_brdrestart(phba);
7818         lpfc_online(phba);
7819
7820         /* Log the current active interrupt mode */
7821         lpfc_log_intr_mode(phba, phba->intr_mode);
7822
7823         return 0;
7824 }
7825
7826 /**
7827  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7828  * @phba: pointer to lpfc hba data structure.
7829  *
7830  * This routine is called to prepare the SLI3 device for PCI slot recover. It
7831  * aborts all the outstanding SCSI I/Os to the pci device.
7832  **/
7833 static void
7834 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7835 {
7836         struct lpfc_sli *psli = &phba->sli;
7837         struct lpfc_sli_ring  *pring;
7838
7839         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7840                         "2723 PCI channel I/O abort preparing for recovery\n");
7841
7842         /*
7843          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
7844          * and let the SCSI mid-layer to retry them to recover.
7845          */
7846         pring = &psli->ring[psli->fcp_ring];
7847         lpfc_sli_abort_iocb_ring(phba, pring);
7848 }
7849
7850 /**
7851  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7852  * @phba: pointer to lpfc hba data structure.
7853  *
7854  * This routine is called to prepare the SLI3 device for PCI slot reset. It
7855  * disables the device interrupt and pci device, and aborts the internal FCP
7856  * pending I/Os.
7857  **/
7858 static void
7859 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7860 {
7861         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7862                         "2710 PCI channel disable preparing for reset\n");
7863
7864         /* Block any management I/Os to the device */
7865         lpfc_block_mgmt_io(phba);
7866
7867         /* Block all SCSI devices' I/Os on the host */
7868         lpfc_scsi_dev_block(phba);
7869
7870         /* stop all timers */
7871         lpfc_stop_hba_timers(phba);
7872
7873         /* Disable interrupt and pci device */
7874         lpfc_sli_disable_intr(phba);
7875         pci_disable_device(phba->pcidev);
7876
7877         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
7878         lpfc_sli_flush_fcp_rings(phba);
7879 }
7880
7881 /**
7882  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7883  * @phba: pointer to lpfc hba data structure.
7884  *
7885  * This routine is called to prepare the SLI3 device for PCI slot permanently
7886  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7887  * pending I/Os.
7888  **/
7889 static void
7890 lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7891 {
7892         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7893                         "2711 PCI channel permanent disable for failure\n");
7894         /* Block all SCSI devices' I/Os on the host */
7895         lpfc_scsi_dev_block(phba);
7896
7897         /* stop all timers */
7898         lpfc_stop_hba_timers(phba);
7899
7900         /* Clean up all driver's outstanding SCSI I/Os */
7901         lpfc_sli_flush_fcp_rings(phba);
7902 }
7903
7904 /**
7905  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7906  * @pdev: pointer to PCI device.
7907  * @state: the current PCI connection state.
7908  *
7909  * This routine is called from the PCI subsystem for I/O error handling to
7910  * device with SLI-3 interface spec. This function is called by the PCI
7911  * subsystem after a PCI bus error affecting this device has been detected.
7912  * When this function is invoked, it will need to stop all the I/Os and
7913  * interrupt(s) to the device. Once that is done, it will return
7914  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7915  * as desired.
7916  *
7917  * Return codes
7918  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7919  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7920  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7921  **/
7922 static pci_ers_result_t
7923 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7924 {
7925         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7926         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7927
7928         switch (state) {
7929         case pci_channel_io_normal:
7930                 /* Non-fatal error, prepare for recovery */
7931                 lpfc_sli_prep_dev_for_recover(phba);
7932                 return PCI_ERS_RESULT_CAN_RECOVER;
7933         case pci_channel_io_frozen:
7934                 /* Fatal error, prepare for slot reset */
7935                 lpfc_sli_prep_dev_for_reset(phba);
7936                 return PCI_ERS_RESULT_NEED_RESET;
7937         case pci_channel_io_perm_failure:
7938                 /* Permanent failure, prepare for device down */
7939                 lpfc_sli_prep_dev_for_perm_failure(phba);
7940                 return PCI_ERS_RESULT_DISCONNECT;
7941         default:
7942                 /* Unknown state, prepare and request slot reset */
7943                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7944                                 "0472 Unknown PCI error state: x%x\n", state);
7945                 lpfc_sli_prep_dev_for_reset(phba);
7946                 return PCI_ERS_RESULT_NEED_RESET;
7947         }
7948 }
7949
7950 /**
7951  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7952  * @pdev: pointer to PCI device.
7953  *
7954  * This routine is called from the PCI subsystem for error handling to
7955  * device with SLI-3 interface spec. This is called after PCI bus has been
7956  * reset to restart the PCI card from scratch, as if from a cold-boot.
7957  * During the PCI subsystem error recovery, after driver returns
7958  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7959  * recovery and then call this routine before calling the .resume method
7960  * to recover the device. This function will initialize the HBA device,
7961  * enable the interrupt, but it will just put the HBA to offline state
7962  * without passing any I/O traffic.
7963  *
7964  * Return codes
7965  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
7966  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7967  */
7968 static pci_ers_result_t
7969 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7970 {
7971         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7972         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7973         struct lpfc_sli *psli = &phba->sli;
7974         uint32_t intr_mode;
7975
7976         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7977         if (pci_enable_device_mem(pdev)) {
7978                 printk(KERN_ERR "lpfc: Cannot re-enable "
7979                         "PCI device after reset.\n");
7980                 return PCI_ERS_RESULT_DISCONNECT;
7981         }
7982
7983         pci_restore_state(pdev);
7984
7985         /*
7986          * As the new kernel behavior of pci_restore_state() API call clears
7987          * device saved_state flag, need to save the restored state again.
7988          */
7989         pci_save_state(pdev);
7990
7991         if (pdev->is_busmaster)
7992                 pci_set_master(pdev);
7993
7994         spin_lock_irq(&phba->hbalock);
7995         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7996         spin_unlock_irq(&phba->hbalock);
7997
7998         /* Configure and enable interrupt */
7999         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
8000         if (intr_mode == LPFC_INTR_ERROR) {
8001                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8002                                 "0427 Cannot re-enable interrupt after "
8003                                 "slot reset.\n");
8004                 return PCI_ERS_RESULT_DISCONNECT;
8005         } else
8006                 phba->intr_mode = intr_mode;
8007
8008         /* Take device offline, it will perform cleanup */
8009         lpfc_offline_prep(phba);
8010         lpfc_offline(phba);
8011         lpfc_sli_brdrestart(phba);
8012
8013         /* Log the current active interrupt mode */
8014         lpfc_log_intr_mode(phba, phba->intr_mode);
8015
8016         return PCI_ERS_RESULT_RECOVERED;
8017 }
8018
8019 /**
8020  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
8021  * @pdev: pointer to PCI device
8022  *
8023  * This routine is called from the PCI subsystem for error handling to device
8024  * with SLI-3 interface spec. It is called when kernel error recovery tells
8025  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8026  * error recovery. After this call, traffic can start to flow from this device
8027  * again.
8028  */
8029 static void
8030 lpfc_io_resume_s3(struct pci_dev *pdev)
8031 {
8032         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8033         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8034
8035         /* Bring device online, it will be no-op for non-fatal error resume */
8036         lpfc_online(phba);
8037
8038         /* Clean up Advanced Error Reporting (AER) if needed */
8039         if (phba->hba_flag & HBA_AER_ENABLED)
8040                 pci_cleanup_aer_uncorrect_error_status(pdev);
8041 }
8042
8043 /**
8044  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
8045  * @phba: pointer to lpfc hba data structure.
8046  *
8047  * returns the number of ELS/CT IOCBs to reserve
8048  **/
8049 int
8050 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
8051 {
8052         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
8053
8054         if (phba->sli_rev == LPFC_SLI_REV4) {
8055                 if (max_xri <= 100)
8056                         return 10;
8057                 else if (max_xri <= 256)
8058                         return 25;
8059                 else if (max_xri <= 512)
8060                         return 50;
8061                 else if (max_xri <= 1024)
8062                         return 100;
8063                 else
8064                         return 150;
8065         } else
8066                 return 0;
8067 }
8068
8069 /**
8070  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
8071  * @pdev: pointer to PCI device
8072  * @pid: pointer to PCI device identifier
8073  *
8074  * This routine is called from the kernel's PCI subsystem to device with
8075  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8076  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
8077  * information of the device and driver to see if the driver state that it
8078  * can support this kind of device. If the match is successful, the driver
8079  * core invokes this routine. If this routine determines it can claim the HBA,
8080  * it does all the initialization that it needs to do to handle the HBA
8081  * properly.
8082  *
8083  * Return code
8084  *      0 - driver can claim the device
8085  *      negative value - driver can not claim the device
8086  **/
8087 static int __devinit
8088 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8089 {
8090         struct lpfc_hba   *phba;
8091         struct lpfc_vport *vport = NULL;
8092         struct Scsi_Host  *shost = NULL;
8093         int error;
8094         uint32_t cfg_mode, intr_mode;
8095         int mcnt;
8096
8097         /* Allocate memory for HBA structure */
8098         phba = lpfc_hba_alloc(pdev);
8099         if (!phba)
8100                 return -ENOMEM;
8101
8102         /* Perform generic PCI device enabling operation */
8103         error = lpfc_enable_pci_dev(phba);
8104         if (error) {
8105                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8106                                 "1409 Failed to enable pci device.\n");
8107                 goto out_free_phba;
8108         }
8109
8110         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8111         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8112         if (error)
8113                 goto out_disable_pci_dev;
8114
8115         /* Set up SLI-4 specific device PCI memory space */
8116         error = lpfc_sli4_pci_mem_setup(phba);
8117         if (error) {
8118                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8119                                 "1410 Failed to set up pci memory space.\n");
8120                 goto out_disable_pci_dev;
8121         }
8122
8123         /* Set up phase-1 common device driver resources */
8124         error = lpfc_setup_driver_resource_phase1(phba);
8125         if (error) {
8126                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8127                                 "1411 Failed to set up driver resource.\n");
8128                 goto out_unset_pci_mem_s4;
8129         }
8130
8131         /* Set up SLI-4 Specific device driver resources */
8132         error = lpfc_sli4_driver_resource_setup(phba);
8133         if (error) {
8134                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8135                                 "1412 Failed to set up driver resource.\n");
8136                 goto out_unset_pci_mem_s4;
8137         }
8138
8139         /* Initialize and populate the iocb list per host */
8140
8141         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8142                         "2821 initialize iocb list %d.\n",
8143                         phba->cfg_iocb_cnt*1024);
8144         error = lpfc_init_iocb_list(phba, phba->cfg_iocb_cnt*1024);
8145
8146         if (error) {
8147                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8148                                 "1413 Failed to initialize iocb list.\n");
8149                 goto out_unset_driver_resource_s4;
8150         }
8151
8152         /* Set up common device driver resources */
8153         error = lpfc_setup_driver_resource_phase2(phba);
8154         if (error) {
8155                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8156                                 "1414 Failed to set up driver resource.\n");
8157                 goto out_free_iocb_list;
8158         }
8159
8160         /* Create SCSI host to the physical port */
8161         error = lpfc_create_shost(phba);
8162         if (error) {
8163                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8164                                 "1415 Failed to create scsi host.\n");
8165                 goto out_unset_driver_resource;
8166         }
8167
8168         /* Configure sysfs attributes */
8169         vport = phba->pport;
8170         error = lpfc_alloc_sysfs_attr(vport);
8171         if (error) {
8172                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8173                                 "1416 Failed to allocate sysfs attr\n");
8174                 goto out_destroy_shost;
8175         }
8176
8177         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8178         /* Now, trying to enable interrupt and bring up the device */
8179         cfg_mode = phba->cfg_use_msi;
8180         while (true) {
8181                 /* Put device to a known state before enabling interrupt */
8182                 lpfc_stop_port(phba);
8183                 /* Configure and enable interrupt */
8184                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8185                 if (intr_mode == LPFC_INTR_ERROR) {
8186                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8187                                         "0426 Failed to enable interrupt.\n");
8188                         error = -ENODEV;
8189                         goto out_free_sysfs_attr;
8190                 }
8191                 /* Default to single FCP EQ for non-MSI-X */
8192                 if (phba->intr_type != MSIX)
8193                         phba->cfg_fcp_eq_count = 1;
8194                 else if (phba->sli4_hba.msix_vec_nr < phba->cfg_fcp_eq_count)
8195                         phba->cfg_fcp_eq_count = phba->sli4_hba.msix_vec_nr - 1;
8196                 /* Set up SLI-4 HBA */
8197                 if (lpfc_sli4_hba_setup(phba)) {
8198                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8199                                         "1421 Failed to set up hba\n");
8200                         error = -ENODEV;
8201                         goto out_disable_intr;
8202                 }
8203
8204                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8205                 if (intr_mode != 0)
8206                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8207                                                             LPFC_ACT_INTR_CNT);
8208
8209                 /* Check active interrupts received only for MSI/MSI-X */
8210                 if (intr_mode == 0 ||
8211                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8212                         /* Log the current active interrupt mode */
8213                         phba->intr_mode = intr_mode;
8214                         lpfc_log_intr_mode(phba, intr_mode);
8215                         break;
8216                 }
8217                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8218                                 "0451 Configure interrupt mode (%d) "
8219                                 "failed active interrupt test.\n",
8220                                 intr_mode);
8221                 /* Unset the preivous SLI-4 HBA setup */
8222                 lpfc_sli4_unset_hba(phba);
8223                 /* Try next level of interrupt mode */
8224                 cfg_mode = --intr_mode;
8225         }
8226
8227         /* Perform post initialization setup */
8228         lpfc_post_init_setup(phba);
8229
8230         /* Check if there are static vports to be created. */
8231         lpfc_create_static_vport(phba);
8232
8233         return 0;
8234
8235 out_disable_intr:
8236         lpfc_sli4_disable_intr(phba);
8237 out_free_sysfs_attr:
8238         lpfc_free_sysfs_attr(vport);
8239 out_destroy_shost:
8240         lpfc_destroy_shost(phba);
8241 out_unset_driver_resource:
8242         lpfc_unset_driver_resource_phase2(phba);
8243 out_free_iocb_list:
8244         lpfc_free_iocb_list(phba);
8245 out_unset_driver_resource_s4:
8246         lpfc_sli4_driver_resource_unset(phba);
8247 out_unset_pci_mem_s4:
8248         lpfc_sli4_pci_mem_unset(phba);
8249 out_disable_pci_dev:
8250         lpfc_disable_pci_dev(phba);
8251         if (shost)
8252                 scsi_host_put(shost);
8253 out_free_phba:
8254         lpfc_hba_free(phba);
8255         return error;
8256 }
8257
8258 /**
8259  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8260  * @pdev: pointer to PCI device
8261  *
8262  * This routine is called from the kernel's PCI subsystem to device with
8263  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8264  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8265  * device to be removed from the PCI subsystem properly.
8266  **/
8267 static void __devexit
8268 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8269 {
8270         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8271         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8272         struct lpfc_vport **vports;
8273         struct lpfc_hba *phba = vport->phba;
8274         int i;
8275
8276         /* Mark the device unloading flag */
8277         spin_lock_irq(&phba->hbalock);
8278         vport->load_flag |= FC_UNLOADING;
8279         spin_unlock_irq(&phba->hbalock);
8280
8281         /* Free the HBA sysfs attributes */
8282         lpfc_free_sysfs_attr(vport);
8283
8284         /* Release all the vports against this physical port */
8285         vports = lpfc_create_vport_work_array(phba);
8286         if (vports != NULL)
8287                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8288                         fc_vport_terminate(vports[i]->fc_vport);
8289         lpfc_destroy_vport_work_array(phba, vports);
8290
8291         /* Remove FC host and then SCSI host with the physical port */
8292         fc_remove_host(shost);
8293         scsi_remove_host(shost);
8294
8295         /* Perform cleanup on the physical port */
8296         lpfc_cleanup(vport);
8297
8298         /*
8299          * Bring down the SLI Layer. This step disables all interrupts,
8300          * clears the rings, discards all mailbox commands, and resets
8301          * the HBA FCoE function.
8302          */
8303         lpfc_debugfs_terminate(vport);
8304         lpfc_sli4_hba_unset(phba);
8305
8306         spin_lock_irq(&phba->hbalock);
8307         list_del_init(&vport->listentry);
8308         spin_unlock_irq(&phba->hbalock);
8309
8310         /* Perform scsi free before driver resource_unset since scsi
8311          * buffers are released to their corresponding pools here.
8312          */
8313         lpfc_scsi_free(phba);
8314         lpfc_sli4_driver_resource_unset(phba);
8315
8316         /* Unmap adapter Control and Doorbell registers */
8317         lpfc_sli4_pci_mem_unset(phba);
8318
8319         /* Release PCI resources and disable device's PCI function */
8320         scsi_host_put(shost);
8321         lpfc_disable_pci_dev(phba);
8322
8323         /* Finally, free the driver's device data structure */
8324         lpfc_hba_free(phba);
8325
8326         return;
8327 }
8328
8329 /**
8330  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8331  * @pdev: pointer to PCI device
8332  * @msg: power management message
8333  *
8334  * This routine is called from the kernel's PCI subsystem to support system
8335  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8336  * this method, it quiesces the device by stopping the driver's worker
8337  * thread for the device, turning off device's interrupt and DMA, and bring
8338  * the device offline. Note that as the driver implements the minimum PM
8339  * requirements to a power-aware driver's PM support for suspend/resume -- all
8340  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8341  * method call will be treated as SUSPEND and the driver will fully
8342  * reinitialize its device during resume() method call, the driver will set
8343  * device to PCI_D3hot state in PCI config space instead of setting it
8344  * according to the @msg provided by the PM.
8345  *
8346  * Return code
8347  *      0 - driver suspended the device
8348  *      Error otherwise
8349  **/
8350 static int
8351 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8352 {
8353         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8354         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8355
8356         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8357                         "2843 PCI device Power Management suspend.\n");
8358
8359         /* Bring down the device */
8360         lpfc_offline_prep(phba);
8361         lpfc_offline(phba);
8362         kthread_stop(phba->worker_thread);
8363
8364         /* Disable interrupt from device */
8365         lpfc_sli4_disable_intr(phba);
8366
8367         /* Save device state to PCI config space */
8368         pci_save_state(pdev);
8369         pci_set_power_state(pdev, PCI_D3hot);
8370
8371         return 0;
8372 }
8373
8374 /**
8375  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8376  * @pdev: pointer to PCI device
8377  *
8378  * This routine is called from the kernel's PCI subsystem to support system
8379  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8380  * this method, it restores the device's PCI config space state and fully
8381  * reinitializes the device and brings it online. Note that as the driver
8382  * implements the minimum PM requirements to a power-aware driver's PM for
8383  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8384  * to the suspend() method call will be treated as SUSPEND and the driver
8385  * will fully reinitialize its device during resume() method call, the device
8386  * will be set to PCI_D0 directly in PCI config space before restoring the
8387  * state.
8388  *
8389  * Return code
8390  *      0 - driver suspended the device
8391  *      Error otherwise
8392  **/
8393 static int
8394 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8395 {
8396         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8397         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8398         uint32_t intr_mode;
8399         int error;
8400
8401         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8402                         "0292 PCI device Power Management resume.\n");
8403
8404         /* Restore device state from PCI config space */
8405         pci_set_power_state(pdev, PCI_D0);
8406         pci_restore_state(pdev);
8407
8408         /*
8409          * As the new kernel behavior of pci_restore_state() API call clears
8410          * device saved_state flag, need to save the restored state again.
8411          */
8412         pci_save_state(pdev);
8413
8414         if (pdev->is_busmaster)
8415                 pci_set_master(pdev);
8416
8417          /* Startup the kernel thread for this host adapter. */
8418         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8419                                         "lpfc_worker_%d", phba->brd_no);
8420         if (IS_ERR(phba->worker_thread)) {
8421                 error = PTR_ERR(phba->worker_thread);
8422                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8423                                 "0293 PM resume failed to start worker "
8424                                 "thread: error=x%x.\n", error);
8425                 return error;
8426         }
8427
8428         /* Configure and enable interrupt */
8429         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8430         if (intr_mode == LPFC_INTR_ERROR) {
8431                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8432                                 "0294 PM resume Failed to enable interrupt\n");
8433                 return -EIO;
8434         } else
8435                 phba->intr_mode = intr_mode;
8436
8437         /* Restart HBA and bring it online */
8438         lpfc_sli_brdrestart(phba);
8439         lpfc_online(phba);
8440
8441         /* Log the current active interrupt mode */
8442         lpfc_log_intr_mode(phba, phba->intr_mode);
8443
8444         return 0;
8445 }
8446
8447 /**
8448  * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover
8449  * @phba: pointer to lpfc hba data structure.
8450  *
8451  * This routine is called to prepare the SLI4 device for PCI slot recover. It
8452  * aborts all the outstanding SCSI I/Os to the pci device.
8453  **/
8454 static void
8455 lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba)
8456 {
8457         struct lpfc_sli *psli = &phba->sli;
8458         struct lpfc_sli_ring  *pring;
8459
8460         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8461                         "2828 PCI channel I/O abort preparing for recovery\n");
8462         /*
8463          * There may be errored I/Os through HBA, abort all I/Os on txcmplq
8464          * and let the SCSI mid-layer to retry them to recover.
8465          */
8466         pring = &psli->ring[psli->fcp_ring];
8467         lpfc_sli_abort_iocb_ring(phba, pring);
8468 }
8469
8470 /**
8471  * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset
8472  * @phba: pointer to lpfc hba data structure.
8473  *
8474  * This routine is called to prepare the SLI4 device for PCI slot reset. It
8475  * disables the device interrupt and pci device, and aborts the internal FCP
8476  * pending I/Os.
8477  **/
8478 static void
8479 lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba)
8480 {
8481         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8482                         "2826 PCI channel disable preparing for reset\n");
8483
8484         /* Block any management I/Os to the device */
8485         lpfc_block_mgmt_io(phba);
8486
8487         /* Block all SCSI devices' I/Os on the host */
8488         lpfc_scsi_dev_block(phba);
8489
8490         /* stop all timers */
8491         lpfc_stop_hba_timers(phba);
8492
8493         /* Disable interrupt and pci device */
8494         lpfc_sli4_disable_intr(phba);
8495         pci_disable_device(phba->pcidev);
8496
8497         /* Flush all driver's outstanding SCSI I/Os as we are to reset */
8498         lpfc_sli_flush_fcp_rings(phba);
8499 }
8500
8501 /**
8502  * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable
8503  * @phba: pointer to lpfc hba data structure.
8504  *
8505  * This routine is called to prepare the SLI4 device for PCI slot permanently
8506  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
8507  * pending I/Os.
8508  **/
8509 static void
8510 lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba)
8511 {
8512         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8513                         "2827 PCI channel permanent disable for failure\n");
8514
8515         /* Block all SCSI devices' I/Os on the host */
8516         lpfc_scsi_dev_block(phba);
8517
8518         /* stop all timers */
8519         lpfc_stop_hba_timers(phba);
8520
8521         /* Clean up all driver's outstanding SCSI I/Os */
8522         lpfc_sli_flush_fcp_rings(phba);
8523 }
8524
8525 /**
8526  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8527  * @pdev: pointer to PCI device.
8528  * @state: the current PCI connection state.
8529  *
8530  * This routine is called from the PCI subsystem for error handling to device
8531  * with SLI-4 interface spec. This function is called by the PCI subsystem
8532  * after a PCI bus error affecting this device has been detected. When this
8533  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8534  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8535  * for the PCI subsystem to perform proper recovery as desired.
8536  *
8537  * Return codes
8538  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8539  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8540  **/
8541 static pci_ers_result_t
8542 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8543 {
8544         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8545         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8546
8547         switch (state) {
8548         case pci_channel_io_normal:
8549                 /* Non-fatal error, prepare for recovery */
8550                 lpfc_sli4_prep_dev_for_recover(phba);
8551                 return PCI_ERS_RESULT_CAN_RECOVER;
8552         case pci_channel_io_frozen:
8553                 /* Fatal error, prepare for slot reset */
8554                 lpfc_sli4_prep_dev_for_reset(phba);
8555                 return PCI_ERS_RESULT_NEED_RESET;
8556         case pci_channel_io_perm_failure:
8557                 /* Permanent failure, prepare for device down */
8558                 lpfc_sli4_prep_dev_for_perm_failure(phba);
8559                 return PCI_ERS_RESULT_DISCONNECT;
8560         default:
8561                 /* Unknown state, prepare and request slot reset */
8562                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8563                                 "2825 Unknown PCI error state: x%x\n", state);
8564                 lpfc_sli4_prep_dev_for_reset(phba);
8565                 return PCI_ERS_RESULT_NEED_RESET;
8566         }
8567 }
8568
8569 /**
8570  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8571  * @pdev: pointer to PCI device.
8572  *
8573  * This routine is called from the PCI subsystem for error handling to device
8574  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8575  * restart the PCI card from scratch, as if from a cold-boot. During the
8576  * PCI subsystem error recovery, after the driver returns
8577  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8578  * recovery and then call this routine before calling the .resume method to
8579  * recover the device. This function will initialize the HBA device, enable
8580  * the interrupt, but it will just put the HBA to offline state without
8581  * passing any I/O traffic.
8582  *
8583  * Return codes
8584  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8585  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8586  */
8587 static pci_ers_result_t
8588 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8589 {
8590         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8591         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8592         struct lpfc_sli *psli = &phba->sli;
8593         uint32_t intr_mode;
8594
8595         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
8596         if (pci_enable_device_mem(pdev)) {
8597                 printk(KERN_ERR "lpfc: Cannot re-enable "
8598                         "PCI device after reset.\n");
8599                 return PCI_ERS_RESULT_DISCONNECT;
8600         }
8601
8602         pci_restore_state(pdev);
8603         if (pdev->is_busmaster)
8604                 pci_set_master(pdev);
8605
8606         spin_lock_irq(&phba->hbalock);
8607         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
8608         spin_unlock_irq(&phba->hbalock);
8609
8610         /* Configure and enable interrupt */
8611         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8612         if (intr_mode == LPFC_INTR_ERROR) {
8613                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8614                                 "2824 Cannot re-enable interrupt after "
8615                                 "slot reset.\n");
8616                 return PCI_ERS_RESULT_DISCONNECT;
8617         } else
8618                 phba->intr_mode = intr_mode;
8619
8620         /* Log the current active interrupt mode */
8621         lpfc_log_intr_mode(phba, phba->intr_mode);
8622
8623         return PCI_ERS_RESULT_RECOVERED;
8624 }
8625
8626 /**
8627  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8628  * @pdev: pointer to PCI device
8629  *
8630  * This routine is called from the PCI subsystem for error handling to device
8631  * with SLI-4 interface spec. It is called when kernel error recovery tells
8632  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8633  * error recovery. After this call, traffic can start to flow from this device
8634  * again.
8635  **/
8636 static void
8637 lpfc_io_resume_s4(struct pci_dev *pdev)
8638 {
8639         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8640         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8641
8642         /*
8643          * In case of slot reset, as function reset is performed through
8644          * mailbox command which needs DMA to be enabled, this operation
8645          * has to be moved to the io resume phase. Taking device offline
8646          * will perform the necessary cleanup.
8647          */
8648         if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) {
8649                 /* Perform device reset */
8650                 lpfc_offline_prep(phba);
8651                 lpfc_offline(phba);
8652                 lpfc_sli_brdrestart(phba);
8653                 /* Bring the device back online */
8654                 lpfc_online(phba);
8655         }
8656
8657         /* Clean up Advanced Error Reporting (AER) if needed */
8658         if (phba->hba_flag & HBA_AER_ENABLED)
8659                 pci_cleanup_aer_uncorrect_error_status(pdev);
8660 }
8661
8662 /**
8663  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8664  * @pdev: pointer to PCI device
8665  * @pid: pointer to PCI device identifier
8666  *
8667  * This routine is to be registered to the kernel's PCI subsystem. When an
8668  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8669  * at PCI device-specific information of the device and driver to see if the
8670  * driver state that it can support this kind of device. If the match is
8671  * successful, the driver core invokes this routine. This routine dispatches
8672  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8673  * do all the initialization that it needs to do to handle the HBA device
8674  * properly.
8675  *
8676  * Return code
8677  *      0 - driver can claim the device
8678  *      negative value - driver can not claim the device
8679  **/
8680 static int __devinit
8681 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8682 {
8683         int rc;
8684         struct lpfc_sli_intf intf;
8685
8686         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8687                 return -ENODEV;
8688
8689         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8690             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8691                 rc = lpfc_pci_probe_one_s4(pdev, pid);
8692         else
8693                 rc = lpfc_pci_probe_one_s3(pdev, pid);
8694
8695         return rc;
8696 }
8697
8698 /**
8699  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8700  * @pdev: pointer to PCI device
8701  *
8702  * This routine is to be registered to the kernel's PCI subsystem. When an
8703  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8704  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8705  * remove routine, which will perform all the necessary cleanup for the
8706  * device to be removed from the PCI subsystem properly.
8707  **/
8708 static void __devexit
8709 lpfc_pci_remove_one(struct pci_dev *pdev)
8710 {
8711         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8712         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8713
8714         switch (phba->pci_dev_grp) {
8715         case LPFC_PCI_DEV_LP:
8716                 lpfc_pci_remove_one_s3(pdev);
8717                 break;
8718         case LPFC_PCI_DEV_OC:
8719                 lpfc_pci_remove_one_s4(pdev);
8720                 break;
8721         default:
8722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8723                                 "1424 Invalid PCI device group: 0x%x\n",
8724                                 phba->pci_dev_grp);
8725                 break;
8726         }
8727         return;
8728 }
8729
8730 /**
8731  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8732  * @pdev: pointer to PCI device
8733  * @msg: power management message
8734  *
8735  * This routine is to be registered to the kernel's PCI subsystem to support
8736  * system Power Management (PM). When PM invokes this method, it dispatches
8737  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8738  * suspend the device.
8739  *
8740  * Return code
8741  *      0 - driver suspended the device
8742  *      Error otherwise
8743  **/
8744 static int
8745 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8746 {
8747         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8748         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8749         int rc = -ENODEV;
8750
8751         switch (phba->pci_dev_grp) {
8752         case LPFC_PCI_DEV_LP:
8753                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8754                 break;
8755         case LPFC_PCI_DEV_OC:
8756                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8757                 break;
8758         default:
8759                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8760                                 "1425 Invalid PCI device group: 0x%x\n",
8761                                 phba->pci_dev_grp);
8762                 break;
8763         }
8764         return rc;
8765 }
8766
8767 /**
8768  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8769  * @pdev: pointer to PCI device
8770  *
8771  * This routine is to be registered to the kernel's PCI subsystem to support
8772  * system Power Management (PM). When PM invokes this method, it dispatches
8773  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8774  * resume the device.
8775  *
8776  * Return code
8777  *      0 - driver suspended the device
8778  *      Error otherwise
8779  **/
8780 static int
8781 lpfc_pci_resume_one(struct pci_dev *pdev)
8782 {
8783         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8784         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8785         int rc = -ENODEV;
8786
8787         switch (phba->pci_dev_grp) {
8788         case LPFC_PCI_DEV_LP:
8789                 rc = lpfc_pci_resume_one_s3(pdev);
8790                 break;
8791         case LPFC_PCI_DEV_OC:
8792                 rc = lpfc_pci_resume_one_s4(pdev);
8793                 break;
8794         default:
8795                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8796                                 "1426 Invalid PCI device group: 0x%x\n",
8797                                 phba->pci_dev_grp);
8798                 break;
8799         }
8800         return rc;
8801 }
8802
8803 /**
8804  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8805  * @pdev: pointer to PCI device.
8806  * @state: the current PCI connection state.
8807  *
8808  * This routine is registered to the PCI subsystem for error handling. This
8809  * function is called by the PCI subsystem after a PCI bus error affecting
8810  * this device has been detected. When this routine is invoked, it dispatches
8811  * the action to the proper SLI-3 or SLI-4 device error detected handling
8812  * routine, which will perform the proper error detected operation.
8813  *
8814  * Return codes
8815  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8816  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8817  **/
8818 static pci_ers_result_t
8819 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8820 {
8821         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8822         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8823         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8824
8825         switch (phba->pci_dev_grp) {
8826         case LPFC_PCI_DEV_LP:
8827                 rc = lpfc_io_error_detected_s3(pdev, state);
8828                 break;
8829         case LPFC_PCI_DEV_OC:
8830                 rc = lpfc_io_error_detected_s4(pdev, state);
8831                 break;
8832         default:
8833                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8834                                 "1427 Invalid PCI device group: 0x%x\n",
8835                                 phba->pci_dev_grp);
8836                 break;
8837         }
8838         return rc;
8839 }
8840
8841 /**
8842  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8843  * @pdev: pointer to PCI device.
8844  *
8845  * This routine is registered to the PCI subsystem for error handling. This
8846  * function is called after PCI bus has been reset to restart the PCI card
8847  * from scratch, as if from a cold-boot. When this routine is invoked, it
8848  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8849  * routine, which will perform the proper device reset.
8850  *
8851  * Return codes
8852  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8853  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8854  **/
8855 static pci_ers_result_t
8856 lpfc_io_slot_reset(struct pci_dev *pdev)
8857 {
8858         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8859         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8860         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8861
8862         switch (phba->pci_dev_grp) {
8863         case LPFC_PCI_DEV_LP:
8864                 rc = lpfc_io_slot_reset_s3(pdev);
8865                 break;
8866         case LPFC_PCI_DEV_OC:
8867                 rc = lpfc_io_slot_reset_s4(pdev);
8868                 break;
8869         default:
8870                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8871                                 "1428 Invalid PCI device group: 0x%x\n",
8872                                 phba->pci_dev_grp);
8873                 break;
8874         }
8875         return rc;
8876 }
8877
8878 /**
8879  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8880  * @pdev: pointer to PCI device
8881  *
8882  * This routine is registered to the PCI subsystem for error handling. It
8883  * is called when kernel error recovery tells the lpfc driver that it is
8884  * OK to resume normal PCI operation after PCI bus error recovery. When
8885  * this routine is invoked, it dispatches the action to the proper SLI-3
8886  * or SLI-4 device io_resume routine, which will resume the device operation.
8887  **/
8888 static void
8889 lpfc_io_resume(struct pci_dev *pdev)
8890 {
8891         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8892         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8893
8894         switch (phba->pci_dev_grp) {
8895         case LPFC_PCI_DEV_LP:
8896                 lpfc_io_resume_s3(pdev);
8897                 break;
8898         case LPFC_PCI_DEV_OC:
8899                 lpfc_io_resume_s4(pdev);
8900                 break;
8901         default:
8902                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8903                                 "1429 Invalid PCI device group: 0x%x\n",
8904                                 phba->pci_dev_grp);
8905                 break;
8906         }
8907         return;
8908 }
8909
8910 static struct pci_device_id lpfc_id_table[] = {
8911         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8912                 PCI_ANY_ID, PCI_ANY_ID, },
8913         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8914                 PCI_ANY_ID, PCI_ANY_ID, },
8915         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8916                 PCI_ANY_ID, PCI_ANY_ID, },
8917         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8918                 PCI_ANY_ID, PCI_ANY_ID, },
8919         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8920                 PCI_ANY_ID, PCI_ANY_ID, },
8921         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8922                 PCI_ANY_ID, PCI_ANY_ID, },
8923         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8924                 PCI_ANY_ID, PCI_ANY_ID, },
8925         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8926                 PCI_ANY_ID, PCI_ANY_ID, },
8927         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8928                 PCI_ANY_ID, PCI_ANY_ID, },
8929         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8930                 PCI_ANY_ID, PCI_ANY_ID, },
8931         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8932                 PCI_ANY_ID, PCI_ANY_ID, },
8933         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8934                 PCI_ANY_ID, PCI_ANY_ID, },
8935         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8936                 PCI_ANY_ID, PCI_ANY_ID, },
8937         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8938                 PCI_ANY_ID, PCI_ANY_ID, },
8939         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8940                 PCI_ANY_ID, PCI_ANY_ID, },
8941         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8942                 PCI_ANY_ID, PCI_ANY_ID, },
8943         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8944                 PCI_ANY_ID, PCI_ANY_ID, },
8945         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8946                 PCI_ANY_ID, PCI_ANY_ID, },
8947         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8948                 PCI_ANY_ID, PCI_ANY_ID, },
8949         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8950                 PCI_ANY_ID, PCI_ANY_ID, },
8951         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8952                 PCI_ANY_ID, PCI_ANY_ID, },
8953         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8954                 PCI_ANY_ID, PCI_ANY_ID, },
8955         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8956                 PCI_ANY_ID, PCI_ANY_ID, },
8957         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8958                 PCI_ANY_ID, PCI_ANY_ID, },
8959         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8960                 PCI_ANY_ID, PCI_ANY_ID, },
8961         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8962                 PCI_ANY_ID, PCI_ANY_ID, },
8963         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8964                 PCI_ANY_ID, PCI_ANY_ID, },
8965         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8966                 PCI_ANY_ID, PCI_ANY_ID, },
8967         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8968                 PCI_ANY_ID, PCI_ANY_ID, },
8969         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8970                 PCI_ANY_ID, PCI_ANY_ID, },
8971         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8972                 PCI_ANY_ID, PCI_ANY_ID, },
8973         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8974                 PCI_ANY_ID, PCI_ANY_ID, },
8975         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8976                 PCI_ANY_ID, PCI_ANY_ID, },
8977         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8978                 PCI_ANY_ID, PCI_ANY_ID, },
8979         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8980                 PCI_ANY_ID, PCI_ANY_ID, },
8981         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8982                 PCI_ANY_ID, PCI_ANY_ID, },
8983         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8984                 PCI_ANY_ID, PCI_ANY_ID, },
8985         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8986                 PCI_ANY_ID, PCI_ANY_ID, },
8987         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8988                 PCI_ANY_ID, PCI_ANY_ID, },
8989         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8990                 PCI_ANY_ID, PCI_ANY_ID, },
8991         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BALIUS,
8992                 PCI_ANY_ID, PCI_ANY_ID, },
8993         { 0 }
8994 };
8995
8996 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8997
8998 static struct pci_error_handlers lpfc_err_handler = {
8999         .error_detected = lpfc_io_error_detected,
9000         .slot_reset = lpfc_io_slot_reset,
9001         .resume = lpfc_io_resume,
9002 };
9003
9004 static struct pci_driver lpfc_driver = {
9005         .name           = LPFC_DRIVER_NAME,
9006         .id_table       = lpfc_id_table,
9007         .probe          = lpfc_pci_probe_one,
9008         .remove         = __devexit_p(lpfc_pci_remove_one),
9009         .suspend        = lpfc_pci_suspend_one,
9010         .resume         = lpfc_pci_resume_one,
9011         .err_handler    = &lpfc_err_handler,
9012 };
9013
9014 /**
9015  * lpfc_init - lpfc module initialization routine
9016  *
9017  * This routine is to be invoked when the lpfc module is loaded into the
9018  * kernel. The special kernel macro module_init() is used to indicate the
9019  * role of this routine to the kernel as lpfc module entry point.
9020  *
9021  * Return codes
9022  *   0 - successful
9023  *   -ENOMEM - FC attach transport failed
9024  *   all others - failed
9025  */
9026 static int __init
9027 lpfc_init(void)
9028 {
9029         int error = 0;
9030
9031         printk(LPFC_MODULE_DESC "\n");
9032         printk(LPFC_COPYRIGHT "\n");
9033
9034         if (lpfc_enable_npiv) {
9035                 lpfc_transport_functions.vport_create = lpfc_vport_create;
9036                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
9037         }
9038         lpfc_transport_template =
9039                                 fc_attach_transport(&lpfc_transport_functions);
9040         if (lpfc_transport_template == NULL)
9041                 return -ENOMEM;
9042         if (lpfc_enable_npiv) {
9043                 lpfc_vport_transport_template =
9044                         fc_attach_transport(&lpfc_vport_transport_functions);
9045                 if (lpfc_vport_transport_template == NULL) {
9046                         fc_release_transport(lpfc_transport_template);
9047                         return -ENOMEM;
9048                 }
9049         }
9050         error = pci_register_driver(&lpfc_driver);
9051         if (error) {
9052                 fc_release_transport(lpfc_transport_template);
9053                 if (lpfc_enable_npiv)
9054                         fc_release_transport(lpfc_vport_transport_template);
9055         }
9056
9057         return error;
9058 }
9059
9060 /**
9061  * lpfc_exit - lpfc module removal routine
9062  *
9063  * This routine is invoked when the lpfc module is removed from the kernel.
9064  * The special kernel macro module_exit() is used to indicate the role of
9065  * this routine to the kernel as lpfc module exit point.
9066  */
9067 static void __exit
9068 lpfc_exit(void)
9069 {
9070         pci_unregister_driver(&lpfc_driver);
9071         fc_release_transport(lpfc_transport_template);
9072         if (lpfc_enable_npiv)
9073                 fc_release_transport(lpfc_vport_transport_template);
9074         if (_dump_buf_data) {
9075                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
9076                                 "_dump_buf_data at 0x%p\n",
9077                                 (1L << _dump_buf_data_order), _dump_buf_data);
9078                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
9079         }
9080
9081         if (_dump_buf_dif) {
9082                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
9083                                 "_dump_buf_dif at 0x%p\n",
9084                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
9085                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
9086         }
9087 }
9088
9089 module_init(lpfc_init);
9090 module_exit(lpfc_exit);
9091 MODULE_LICENSE("GPL");
9092 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
9093 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
9094 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);