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  *
 625  * This routine will issue the INIT_LINK mailbox command call.
 626  * It is available to other drivers through the lpfc_hba data
 627  * structure for use as a delayed link up mechanism with the
 628  * module parameter lpfc_suppress_link_up.
 629  *
 630  * Return code
 631  *              0 - success
 632  *              Any other value - error
 633  **/
 634 int
 635 lpfc_hba_init_link(struct lpfc_hba *phba)
 636 {
 637         struct lpfc_vport *vport = phba->pport;
 638         LPFC_MBOXQ_t *pmb;
 639         MAILBOX_t *mb;
 640         int rc;
 641
 642         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 643         if (!pmb) {
 644                 phba->link_state = LPFC_HBA_ERROR;
 645                 return -ENOMEM;
 646         }
 647         mb = &pmb->u.mb;
 648         pmb->vport = vport;
 649
 650         lpfc_init_link(phba, pmb, phba->cfg_topology,
 651                 phba->cfg_link_speed);
 652         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 653         lpfc_set_loopback_flag(phba);
 654         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 655         if (rc != MBX_SUCCESS) {
 656                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 657                         "0498 Adapter failed to init, mbxCmd x%x "
 658                         "INIT_LINK, mbxStatus x%x\n",
 659                         mb->mbxCommand, mb->mbxStatus);
 660                 /* Clear all interrupt enable conditions */
 661                 writel(0, phba->HCregaddr);
 662                 readl(phba->HCregaddr); /* flush */
 663                 /* Clear all pending interrupts */
 664                 writel(0xffffffff, phba->HAregaddr);
 665                 readl(phba->HAregaddr); /* flush */
 666                 phba->link_state = LPFC_HBA_ERROR;
 667                 if (rc != MBX_BUSY)
 668                         mempool_free(pmb, phba->mbox_mem_pool);
 669                 return -EIO;
 670         }
 671         phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK;
 672
 673         return 0;
 674 }
 675
 676 /**
 677  * lpfc_hba_down_link - this routine downs the FC link
 678  *
 679  * This routine will issue the DOWN_LINK mailbox command call.
 680  * It is available to other drivers through the lpfc_hba data
 681  * structure for use to stop the link.
 682  *
 683  * Return code
 684  *              0 - success
 685  *              Any other value - error
 686  **/
 687 int
 688 lpfc_hba_down_link(struct lpfc_hba *phba)
 689 {
 690         LPFC_MBOXQ_t *pmb;
 691         int rc;
 692
 693         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 694         if (!pmb) {
 695                 phba->link_state = LPFC_HBA_ERROR;
 696                 return -ENOMEM;
 697         }
 698
 699         lpfc_printf_log(phba,
 700                 KERN_ERR, LOG_INIT,
 701                 "0491 Adapter Link is disabled.\n");
 702         lpfc_down_link(phba, pmb);
 703         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 704         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 705         if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) {
 706                 lpfc_printf_log(phba,
 707                 KERN_ERR, LOG_INIT,
 708                 "2522 Adapter failed to issue DOWN_LINK"
 709                 " mbox command rc 0x%x\n", rc);
 710
 711                 mempool_free(pmb, phba->mbox_mem_pool);
 712                 return -EIO;
 713         }
 714         return 0;
 715 }
 716
 717 /**
 718  * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset
 719  * @phba: pointer to lpfc HBA data structure.
 720  *
 721  * This routine will do LPFC uninitialization before the HBA is reset when
 722  * bringing down the SLI Layer.
 723  *
 724  * Return codes
 725  *   0 - success.
 726  *   Any other value - error.
 727  **/
 728 int
 729 lpfc_hba_down_prep(struct lpfc_hba *phba)
 730 {
 731         struct lpfc_vport **vports;
 732         int i;
 733
 734         if (phba->sli_rev <= LPFC_SLI_REV3) {
 735                 /* Disable interrupts */
 736                 writel(0, phba->HCregaddr);
 737                 readl(phba->HCregaddr); /* flush */
 738         }
 739
 740         if (phba->pport->load_flag & FC_UNLOADING)
 741                 lpfc_cleanup_discovery_resources(phba->pport);
 742         else {
 743                 vports = lpfc_create_vport_work_array(phba);
 744                 if (vports != NULL)
 745                         for (i = 0; i <= phba->max_vports &&
 746                                 vports[i] != NULL; i++)
 747                                 lpfc_cleanup_discovery_resources(vports[i]);
 748                 lpfc_destroy_vport_work_array(phba, vports);
 749         }
 750         return 0;
 751 }
 752
 753 /**
 754  * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset
 755  * @phba: pointer to lpfc HBA data structure.
 756  *
 757  * This routine will do uninitialization after the HBA is reset when bring
 758  * down the SLI Layer.
 759  *
 760  * Return codes
 761  *   0 - success.
 762  *   Any other value - error.
 763  **/
 764 static int
 765 lpfc_hba_down_post_s3(struct lpfc_hba *phba)
 766 {
 767         struct lpfc_sli *psli = &phba->sli;
 768         struct lpfc_sli_ring *pring;
 769         struct lpfc_dmabuf *mp, *next_mp;
 770         LIST_HEAD(completions);
 771         int i;
 772
 773         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)
 774                 lpfc_sli_hbqbuf_free_all(phba);
 775         else {
 776                 /* Cleanup preposted buffers on the ELS ring */
 777                 pring = &psli->ring[LPFC_ELS_RING];
 778                 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 779                         list_del(&mp->list);
 780                         pring->postbufq_cnt--;
 781                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 782                         kfree(mp);
 783                 }
 784         }
 785
 786         spin_lock_irq(&phba->hbalock);
 787         for (i = 0; i < psli->num_rings; i++) {
 788                 pring = &psli->ring[i];
 789
 790                 /* At this point in time the HBA is either reset or DOA. Either
 791                  * way, nothing should be on txcmplq as it will NEVER complete.
 792                  */
 793                 list_splice_init(&pring->txcmplq, &completions);
 794                 pring->txcmplq_cnt = 0;
 795                 spin_unlock_irq(&phba->hbalock);
 796
 797                 /* Cancel all the IOCBs from the completions list */
 798                 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
 799                                       IOERR_SLI_ABORTED);
 800
 801                 lpfc_sli_abort_iocb_ring(phba, pring);
 802                 spin_lock_irq(&phba->hbalock);
 803         }
 804         spin_unlock_irq(&phba->hbalock);
 805
 806         return 0;
 807 }
 808 /**
 809  * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset
 810  * @phba: pointer to lpfc HBA data structure.
 811  *
 812  * This routine will do uninitialization after the HBA is reset when bring
 813  * down the SLI Layer.
 814  *
 815  * Return codes
 816  *   0 - success.
 817  *   Any other value - error.
 818  **/
 819 static int
 820 lpfc_hba_down_post_s4(struct lpfc_hba *phba)
 821 {
 822         struct lpfc_scsi_buf *psb, *psb_next;
 823         LIST_HEAD(aborts);
 824         int ret;
 825         unsigned long iflag = 0;
 826         struct lpfc_sglq *sglq_entry = NULL;
 827
 828         ret = lpfc_hba_down_post_s3(phba);
 829         if (ret)
 830                 return ret;
 831         /* At this point in time the HBA is either reset or DOA. Either
 832          * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be
 833          * on the lpfc_sgl_list so that it can either be freed if the
 834          * driver is unloading or reposted if the driver is restarting
 835          * the port.
 836          */
 837         spin_lock_irq(&phba->hbalock);  /* required for lpfc_sgl_list and */
 838                                         /* scsl_buf_list */
 839         /* abts_sgl_list_lock required because worker thread uses this
 840          * list.
 841          */
 842         spin_lock(&phba->sli4_hba.abts_sgl_list_lock);
 843         list_for_each_entry(sglq_entry,
 844                 &phba->sli4_hba.lpfc_abts_els_sgl_list, list)
 845                 sglq_entry->state = SGL_FREED;
 846
 847         list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list,
 848                         &phba->sli4_hba.lpfc_sgl_list);
 849         spin_unlock(&phba->sli4_hba.abts_sgl_list_lock);
 850         /* abts_scsi_buf_list_lock required because worker thread uses this
 851          * list.
 852          */
 853         spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 854         list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list,
 855                         &aborts);
 856         spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock);
 857         spin_unlock_irq(&phba->hbalock);
 858
 859         list_for_each_entry_safe(psb, psb_next, &aborts, list) {
 860                 psb->pCmd = NULL;
 861                 psb->status = IOSTAT_SUCCESS;
 862         }
 863         spin_lock_irqsave(&phba->scsi_buf_list_lock, iflag);
 864         list_splice(&aborts, &phba->lpfc_scsi_buf_list);
 865         spin_unlock_irqrestore(&phba->scsi_buf_list_lock, iflag);
 866         return 0;
 867 }
 868
 869 /**
 870  * lpfc_hba_down_post - Wrapper func for hba down post routine
 871  * @phba: pointer to lpfc HBA data structure.
 872  *
 873  * This routine wraps the actual SLI3 or SLI4 routine for performing
 874  * uninitialization after the HBA is reset when bring down the SLI Layer.
 875  *
 876  * Return codes
 877  *   0 - success.
 878  *   Any other value - error.
 879  **/
 880 int
 881 lpfc_hba_down_post(struct lpfc_hba *phba)
 882 {
 883         return (*phba->lpfc_hba_down_post)(phba);
 884 }
 885
 886 /**
 887  * lpfc_hb_timeout - The HBA-timer timeout handler
 888  * @ptr: unsigned long holds the pointer to lpfc hba data structure.
 889  *
 890  * This is the HBA-timer timeout handler registered to the lpfc driver. When
 891  * this timer fires, a HBA timeout event shall be posted to the lpfc driver
 892  * work-port-events bitmap and the worker thread is notified. This timeout
 893  * event will be used by the worker thread to invoke the actual timeout
 894  * handler routine, lpfc_hb_timeout_handler. Any periodical operations will
 895  * be performed in the timeout handler and the HBA timeout event bit shall
 896  * be cleared by the worker thread after it has taken the event bitmap out.
 897  **/
 898 static void
 899 lpfc_hb_timeout(unsigned long ptr)
 900 {
 901         struct lpfc_hba *phba;
 902         uint32_t tmo_posted;
 903         unsigned long iflag;
 904
 905         phba = (struct lpfc_hba *)ptr;
 906
 907         /* Check for heart beat timeout conditions */
 908         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 909         tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO;
 910         if (!tmo_posted)
 911                 phba->pport->work_port_events |= WORKER_HB_TMO;
 912         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
 913
 914         /* Tell the worker thread there is work to do */
 915         if (!tmo_posted)
 916                 lpfc_worker_wake_up(phba);
 917         return;
 918 }
 919
 920 /**
 921  * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function
 922  * @phba: pointer to lpfc hba data structure.
 923  * @pmboxq: pointer to the driver internal queue element for mailbox command.
 924  *
 925  * This is the callback function to the lpfc heart-beat mailbox command.
 926  * If configured, the lpfc driver issues the heart-beat mailbox command to
 927  * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the
 928  * heart-beat mailbox command is issued, the driver shall set up heart-beat
 929  * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks
 930  * heart-beat outstanding state. Once the mailbox command comes back and
 931  * no error conditions detected, the heart-beat mailbox command timer is
 932  * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding
 933  * state is cleared for the next heart-beat. If the timer expired with the
 934  * heart-beat outstanding state set, the driver will put the HBA offline.
 935  **/
 936 static void
 937 lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq)
 938 {
 939         unsigned long drvr_flag;
 940
 941         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 942         phba->hb_outstanding = 0;
 943         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 944
 945         /* Check and reset heart-beat timer is necessary */
 946         mempool_free(pmboxq, phba->mbox_mem_pool);
 947         if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) &&
 948                 !(phba->link_state == LPFC_HBA_ERROR) &&
 949                 !(phba->pport->load_flag & FC_UNLOADING))
 950                 mod_timer(&phba->hb_tmofunc,
 951                         jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
 952         return;
 953 }
 954
 955 /**
 956  * lpfc_hb_timeout_handler - The HBA-timer timeout handler
 957  * @phba: pointer to lpfc hba data structure.
 958  *
 959  * This is the actual HBA-timer timeout handler to be invoked by the worker
 960  * thread whenever the HBA timer fired and HBA-timeout event posted. This
 961  * handler performs any periodic operations needed for the device. If such
 962  * periodic event has already been attended to either in the interrupt handler
 963  * or by processing slow-ring or fast-ring events within the HBA-timer
 964  * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets
 965  * the timer for the next timeout period. If lpfc heart-beat mailbox command
 966  * is configured and there is no heart-beat mailbox command outstanding, a
 967  * heart-beat mailbox is issued and timer set properly. Otherwise, if there
 968  * has been a heart-beat mailbox command outstanding, the HBA shall be put
 969  * to offline.
 970  **/
 971 void
 972 lpfc_hb_timeout_handler(struct lpfc_hba *phba)
 973 {
 974         struct lpfc_vport **vports;
 975         LPFC_MBOXQ_t *pmboxq;
 976         struct lpfc_dmabuf *buf_ptr;
 977         int retval, i;
 978         struct lpfc_sli *psli = &phba->sli;
 979         LIST_HEAD(completions);
 980
 981         vports = lpfc_create_vport_work_array(phba);
 982         if (vports != NULL)
 983                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
 984                         lpfc_rcv_seq_check_edtov(vports[i]);
 985         lpfc_destroy_vport_work_array(phba, vports);
 986
 987         if ((phba->link_state == LPFC_HBA_ERROR) ||
 988                 (phba->pport->load_flag & FC_UNLOADING) ||
 989                 (phba->pport->fc_flag & FC_OFFLINE_MODE))
 990                 return;
 991
 992         spin_lock_irq(&phba->pport->work_port_lock);
 993
 994         if (time_after(phba->last_completion_time + LPFC_HB_MBOX_INTERVAL * HZ,
 995                 jiffies)) {
 996                 spin_unlock_irq(&phba->pport->work_port_lock);
 997                 if (!phba->hb_outstanding)
 998                         mod_timer(&phba->hb_tmofunc,
 999                                 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1000                 else
1001                         mod_timer(&phba->hb_tmofunc,
1002                                 jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1003                 return;
1004         }
1005         spin_unlock_irq(&phba->pport->work_port_lock);
1006
1007         if (phba->elsbuf_cnt &&
1008                 (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) {
1009                 spin_lock_irq(&phba->hbalock);
1010                 list_splice_init(&phba->elsbuf, &completions);
1011                 phba->elsbuf_cnt = 0;
1012                 phba->elsbuf_prev_cnt = 0;
1013                 spin_unlock_irq(&phba->hbalock);
1014
1015                 while (!list_empty(&completions)) {
1016                         list_remove_head(&completions, buf_ptr,
1017                                 struct lpfc_dmabuf, list);
1018                         lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
1019                         kfree(buf_ptr);
1020                 }
1021         }
1022         phba->elsbuf_prev_cnt = phba->elsbuf_cnt;
1023
1024         /* If there is no heart beat outstanding, issue a heartbeat command */
1025         if (phba->cfg_enable_hba_heartbeat) {
1026                 if (!phba->hb_outstanding) {
1027                         pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
1028                         if (!pmboxq) {
1029                                 mod_timer(&phba->hb_tmofunc,
1030                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1031                                 return;
1032                         }
1033
1034                         lpfc_heart_beat(phba, pmboxq);
1035                         pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl;
1036                         pmboxq->vport = phba->pport;
1037                         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
1038
1039                         if (retval != MBX_BUSY && retval != MBX_SUCCESS) {
1040                                 mempool_free(pmboxq, phba->mbox_mem_pool);
1041                                 mod_timer(&phba->hb_tmofunc,
1042                                           jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
1043                                 return;
1044                         }
1045                         mod_timer(&phba->hb_tmofunc,
1046                                   jiffies + HZ * LPFC_HB_MBOX_TIMEOUT);
1047                         phba->hb_outstanding = 1;
1048                         return;
1049                 } else {
1050                         /*
1051                         * If heart beat timeout called with hb_outstanding set
1052                         * we need to take the HBA offline.
1053                         */
1054                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1055                                         "0459 Adapter heartbeat failure, "
1056                                         "taking this port offline.\n");
1057
1058                         spin_lock_irq(&phba->hbalock);
1059                         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1060                         spin_unlock_irq(&phba->hbalock);
1061
1062                         lpfc_offline_prep(phba);
1063                         lpfc_offline(phba);
1064                         lpfc_unblock_mgmt_io(phba);
1065                         phba->link_state = LPFC_HBA_ERROR;
1066                         lpfc_hba_down_post(phba);
1067                 }
1068         }
1069 }
1070
1071 /**
1072  * lpfc_offline_eratt - Bring lpfc offline on hardware error attention
1073  * @phba: pointer to lpfc hba data structure.
1074  *
1075  * This routine is called to bring the HBA offline when HBA hardware error
1076  * other than Port Error 6 has been detected.
1077  **/
1078 static void
1079 lpfc_offline_eratt(struct lpfc_hba *phba)
1080 {
1081         struct lpfc_sli   *psli = &phba->sli;
1082
1083         spin_lock_irq(&phba->hbalock);
1084         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1085         spin_unlock_irq(&phba->hbalock);
1086         lpfc_offline_prep(phba);
1087
1088         lpfc_offline(phba);
1089         lpfc_reset_barrier(phba);
1090         spin_lock_irq(&phba->hbalock);
1091         lpfc_sli_brdreset(phba);
1092         spin_unlock_irq(&phba->hbalock);
1093         lpfc_hba_down_post(phba);
1094         lpfc_sli_brdready(phba, HS_MBRDY);
1095         lpfc_unblock_mgmt_io(phba);
1096         phba->link_state = LPFC_HBA_ERROR;
1097         return;
1098 }
1099
1100 /**
1101  * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention
1102  * @phba: pointer to lpfc hba data structure.
1103  *
1104  * This routine is called to bring a SLI4 HBA offline when HBA hardware error
1105  * other than Port Error 6 has been detected.
1106  **/
1107 static void
1108 lpfc_sli4_offline_eratt(struct lpfc_hba *phba)
1109 {
1110         lpfc_offline_prep(phba);
1111         lpfc_offline(phba);
1112         lpfc_sli4_brdreset(phba);
1113         lpfc_hba_down_post(phba);
1114         lpfc_sli4_post_status_check(phba);
1115         lpfc_unblock_mgmt_io(phba);
1116         phba->link_state = LPFC_HBA_ERROR;
1117 }
1118
1119 /**
1120  * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler
1121  * @phba: pointer to lpfc hba data structure.
1122  *
1123  * This routine is invoked to handle the deferred HBA hardware error
1124  * conditions. This type of error is indicated by HBA by setting ER1
1125  * and another ER bit in the host status register. The driver will
1126  * wait until the ER1 bit clears before handling the error condition.
1127  **/
1128 static void
1129 lpfc_handle_deferred_eratt(struct lpfc_hba *phba)
1130 {
1131         uint32_t old_host_status = phba->work_hs;
1132         struct lpfc_sli_ring  *pring;
1133         struct lpfc_sli *psli = &phba->sli;
1134
1135         /* If the pci channel is offline, ignore possible errors,
1136          * since we cannot communicate with the pci card anyway.
1137          */
1138         if (pci_channel_offline(phba->pcidev)) {
1139                 spin_lock_irq(&phba->hbalock);
1140                 phba->hba_flag &= ~DEFER_ERATT;
1141                 spin_unlock_irq(&phba->hbalock);
1142                 return;
1143         }
1144
1145         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1146                 "0479 Deferred Adapter Hardware Error "
1147                 "Data: x%x x%x x%x\n",
1148                 phba->work_hs,
1149                 phba->work_status[0], phba->work_status[1]);
1150
1151         spin_lock_irq(&phba->hbalock);
1152         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1153         spin_unlock_irq(&phba->hbalock);
1154
1155
1156         /*
1157          * Firmware stops when it triggred erratt. That could cause the I/Os
1158          * dropped by the firmware. Error iocb (I/O) on txcmplq and let the
1159          * SCSI layer retry it after re-establishing link.
1160          */
1161         pring = &psli->ring[psli->fcp_ring];
1162         lpfc_sli_abort_iocb_ring(phba, pring);
1163
1164         /*
1165          * There was a firmware error. Take the hba offline and then
1166          * attempt to restart it.
1167          */
1168         lpfc_offline_prep(phba);
1169         lpfc_offline(phba);
1170
1171         /* Wait for the ER1 bit to clear.*/
1172         while (phba->work_hs & HS_FFER1) {
1173                 msleep(100);
1174                 phba->work_hs = readl(phba->HSregaddr);
1175                 /* If driver is unloading let the worker thread continue */
1176                 if (phba->pport->load_flag & FC_UNLOADING) {
1177                         phba->work_hs = 0;
1178                         break;
1179                 }
1180         }
1181
1182         /*
1183          * This is to ptrotect against a race condition in which
1184          * first write to the host attention register clear the
1185          * host status register.
1186          */
1187         if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING)))
1188                 phba->work_hs = old_host_status & ~HS_FFER1;
1189
1190         spin_lock_irq(&phba->hbalock);
1191         phba->hba_flag &= ~DEFER_ERATT;
1192         spin_unlock_irq(&phba->hbalock);
1193         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
1194         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
1195 }
1196
1197 static void
1198 lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba)
1199 {
1200         struct lpfc_board_event_header board_event;
1201         struct Scsi_Host *shost;
1202
1203         board_event.event_type = FC_REG_BOARD_EVENT;
1204         board_event.subcategory = LPFC_EVENT_PORTINTERR;
1205         shost = lpfc_shost_from_vport(phba->pport);
1206         fc_host_post_vendor_event(shost, fc_get_event_number(),
1207                                   sizeof(board_event),
1208                                   (char *) &board_event,
1209                                   LPFC_NL_VENDOR_ID);
1210 }
1211
1212 /**
1213  * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler
1214  * @phba: pointer to lpfc hba data structure.
1215  *
1216  * This routine is invoked to handle the following HBA hardware error
1217  * conditions:
1218  * 1 - HBA error attention interrupt
1219  * 2 - DMA ring index out of range
1220  * 3 - Mailbox command came back as unknown
1221  **/
1222 static void
1223 lpfc_handle_eratt_s3(struct lpfc_hba *phba)
1224 {
1225         struct lpfc_vport *vport = phba->pport;
1226         struct lpfc_sli   *psli = &phba->sli;
1227         struct lpfc_sli_ring  *pring;
1228         uint32_t event_data;
1229         unsigned long temperature;
1230         struct temp_event temp_event_data;
1231         struct Scsi_Host  *shost;
1232
1233         /* If the pci channel is offline, ignore possible errors,
1234          * since we cannot communicate with the pci card anyway.
1235          */
1236         if (pci_channel_offline(phba->pcidev)) {
1237                 spin_lock_irq(&phba->hbalock);
1238                 phba->hba_flag &= ~DEFER_ERATT;
1239                 spin_unlock_irq(&phba->hbalock);
1240                 return;
1241         }
1242
1243         /* If resets are disabled then leave the HBA alone and return */
1244         if (!phba->cfg_enable_hba_reset)
1245                 return;
1246
1247         /* Send an internal error event to mgmt application */
1248         lpfc_board_errevt_to_mgmt(phba);
1249
1250         if (phba->hba_flag & DEFER_ERATT)
1251                 lpfc_handle_deferred_eratt(phba);
1252
1253         if (phba->work_hs & HS_FFER6) {
1254                 /* Re-establishing Link */
1255                 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
1256                                 "1301 Re-establishing Link "
1257                                 "Data: x%x x%x x%x\n",
1258                                 phba->work_hs,
1259                                 phba->work_status[0], phba->work_status[1]);
1260
1261                 spin_lock_irq(&phba->hbalock);
1262                 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
1263                 spin_unlock_irq(&phba->hbalock);
1264
1265                 /*
1266                 * Firmware stops when it triggled erratt with HS_FFER6.
1267                 * That could cause the I/Os dropped by the firmware.
1268                 * Error iocb (I/O) on txcmplq and let the SCSI layer
1269                 * retry it after re-establishing link.
1270                 */
1271                 pring = &psli->ring[psli->fcp_ring];
1272                 lpfc_sli_abort_iocb_ring(phba, pring);
1273
1274                 /*
1275                  * There was a firmware error.  Take the hba offline and then
1276                  * attempt to restart it.
1277                  */
1278                 lpfc_offline_prep(phba);
1279                 lpfc_offline(phba);
1280                 lpfc_sli_brdrestart(phba);
1281                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
1282                         lpfc_unblock_mgmt_io(phba);
1283                         return;
1284                 }
1285                 lpfc_unblock_mgmt_io(phba);
1286         } else if (phba->work_hs & HS_CRIT_TEMP) {
1287                 temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET);
1288                 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
1289                 temp_event_data.event_code = LPFC_CRIT_TEMP;
1290                 temp_event_data.data = (uint32_t)temperature;
1291
1292                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1293                                 "0406 Adapter maximum temperature exceeded "
1294                                 "(%ld), taking this port offline "
1295                                 "Data: x%x x%x x%x\n",
1296                                 temperature, phba->work_hs,
1297                                 phba->work_status[0], phba->work_status[1]);
1298
1299                 shost = lpfc_shost_from_vport(phba->pport);
1300                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1301                                           sizeof(temp_event_data),
1302                                           (char *) &temp_event_data,
1303                                           SCSI_NL_VID_TYPE_PCI
1304                                           | PCI_VENDOR_ID_EMULEX);
1305
1306                 spin_lock_irq(&phba->hbalock);
1307                 phba->over_temp_state = HBA_OVER_TEMP;
1308                 spin_unlock_irq(&phba->hbalock);
1309                 lpfc_offline_eratt(phba);
1310
1311         } else {
1312                 /* The if clause above forces this code path when the status
1313                  * failure is a value other than FFER6. Do not call the offline
1314                  * twice. This is the adapter hardware error path.
1315                  */
1316                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1317                                 "0457 Adapter Hardware Error "
1318                                 "Data: x%x x%x x%x\n",
1319                                 phba->work_hs,
1320                                 phba->work_status[0], phba->work_status[1]);
1321
1322                 event_data = FC_REG_DUMP_EVENT;
1323                 shost = lpfc_shost_from_vport(vport);
1324                 fc_host_post_vendor_event(shost, fc_get_event_number(),
1325                                 sizeof(event_data), (char *) &event_data,
1326                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1327
1328                 lpfc_offline_eratt(phba);
1329         }
1330         return;
1331 }
1332
1333 /**
1334  * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler
1335  * @phba: pointer to lpfc hba data structure.
1336  *
1337  * This routine is invoked to handle the SLI4 HBA hardware error attention
1338  * conditions.
1339  **/
1340 static void
1341 lpfc_handle_eratt_s4(struct lpfc_hba *phba)
1342 {
1343         struct lpfc_vport *vport = phba->pport;
1344         uint32_t event_data;
1345         struct Scsi_Host *shost;
1346
1347         /* If the pci channel is offline, ignore possible errors, since
1348          * we cannot communicate with the pci card anyway.
1349          */
1350         if (pci_channel_offline(phba->pcidev))
1351                 return;
1352         /* If resets are disabled then leave the HBA alone and return */
1353         if (!phba->cfg_enable_hba_reset)
1354                 return;
1355
1356         /* Send an internal error event to mgmt application */
1357         lpfc_board_errevt_to_mgmt(phba);
1358
1359         /* For now, the actual action for SLI4 device handling is not
1360          * specified yet, just treated it as adaptor hardware failure
1361          */
1362         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1363                         "0143 SLI4 Adapter Hardware Error Data: x%x x%x\n",
1364                         phba->work_status[0], phba->work_status[1]);
1365
1366         event_data = FC_REG_DUMP_EVENT;
1367         shost = lpfc_shost_from_vport(vport);
1368         fc_host_post_vendor_event(shost, fc_get_event_number(),
1369                                   sizeof(event_data), (char *) &event_data,
1370                                   SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
1371
1372         lpfc_sli4_offline_eratt(phba);
1373 }
1374
1375 /**
1376  * lpfc_handle_eratt - Wrapper func for handling hba error attention
1377  * @phba: pointer to lpfc HBA data structure.
1378  *
1379  * This routine wraps the actual SLI3 or SLI4 hba error attention handling
1380  * routine from the API jump table function pointer from the lpfc_hba struct.
1381  *
1382  * Return codes
1383  *   0 - success.
1384  *   Any other value - error.
1385  **/
1386 void
1387 lpfc_handle_eratt(struct lpfc_hba *phba)
1388 {
1389         (*phba->lpfc_handle_eratt)(phba);
1390 }
1391
1392 /**
1393  * lpfc_handle_latt - The HBA link event handler
1394  * @phba: pointer to lpfc hba data structure.
1395  *
1396  * This routine is invoked from the worker thread to handle a HBA host
1397  * attention link event.
1398  **/
1399 void
1400 lpfc_handle_latt(struct lpfc_hba *phba)
1401 {
1402         struct lpfc_vport *vport = phba->pport;
1403         struct lpfc_sli   *psli = &phba->sli;
1404         LPFC_MBOXQ_t *pmb;
1405         volatile uint32_t control;
1406         struct lpfc_dmabuf *mp;
1407         int rc = 0;
1408
1409         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1410         if (!pmb) {
1411                 rc = 1;
1412                 goto lpfc_handle_latt_err_exit;
1413         }
1414
1415         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
1416         if (!mp) {
1417                 rc = 2;
1418                 goto lpfc_handle_latt_free_pmb;
1419         }
1420
1421         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
1422         if (!mp->virt) {
1423                 rc = 3;
1424                 goto lpfc_handle_latt_free_mp;
1425         }
1426
1427         /* Cleanup any outstanding ELS commands */
1428         lpfc_els_flush_all_cmd(phba);
1429
1430         psli->slistat.link_event++;
1431         lpfc_read_la(phba, pmb, mp);
1432         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
1433         pmb->vport = vport;
1434         /* Block ELS IOCBs until we have processed this mbox command */
1435         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
1436         rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT);
1437         if (rc == MBX_NOT_FINISHED) {
1438                 rc = 4;
1439                 goto lpfc_handle_latt_free_mbuf;
1440         }
1441
1442         /* Clear Link Attention in HA REG */
1443         spin_lock_irq(&phba->hbalock);
1444         writel(HA_LATT, phba->HAregaddr);
1445         readl(phba->HAregaddr); /* flush */
1446         spin_unlock_irq(&phba->hbalock);
1447
1448         return;
1449
1450 lpfc_handle_latt_free_mbuf:
1451         phba->sli.ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT;
1452         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1453 lpfc_handle_latt_free_mp:
1454         kfree(mp);
1455 lpfc_handle_latt_free_pmb:
1456         mempool_free(pmb, phba->mbox_mem_pool);
1457 lpfc_handle_latt_err_exit:
1458         /* Enable Link attention interrupts */
1459         spin_lock_irq(&phba->hbalock);
1460         psli->sli_flag |= LPFC_PROCESS_LA;
1461         control = readl(phba->HCregaddr);
1462         control |= HC_LAINT_ENA;
1463         writel(control, phba->HCregaddr);
1464         readl(phba->HCregaddr); /* flush */
1465
1466         /* Clear Link Attention in HA REG */
1467         writel(HA_LATT, phba->HAregaddr);
1468         readl(phba->HAregaddr); /* flush */
1469         spin_unlock_irq(&phba->hbalock);
1470         lpfc_linkdown(phba);
1471         phba->link_state = LPFC_HBA_ERROR;
1472
1473         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
1474                      "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc);
1475
1476         return;
1477 }
1478
1479 /**
1480  * lpfc_parse_vpd - Parse VPD (Vital Product Data)
1481  * @phba: pointer to lpfc hba data structure.
1482  * @vpd: pointer to the vital product data.
1483  * @len: length of the vital product data in bytes.
1484  *
1485  * This routine parses the Vital Product Data (VPD). The VPD is treated as
1486  * an array of characters. In this routine, the ModelName, ProgramType, and
1487  * ModelDesc, etc. fields of the phba data structure will be populated.
1488  *
1489  * Return codes
1490  *   0 - pointer to the VPD passed in is NULL
1491  *   1 - success
1492  **/
1493 int
1494 lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len)
1495 {
1496         uint8_t lenlo, lenhi;
1497         int Length;
1498         int i, j;
1499         int finished = 0;
1500         int index = 0;
1501
1502         if (!vpd)
1503                 return 0;
1504
1505         /* Vital Product */
1506         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
1507                         "0455 Vital Product Data: x%x x%x x%x x%x\n",
1508                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
1509                         (uint32_t) vpd[3]);
1510         while (!finished && (index < (len - 4))) {
1511                 switch (vpd[index]) {
1512                 case 0x82:
1513                 case 0x91:
1514                         index += 1;
1515                         lenlo = vpd[index];
1516                         index += 1;
1517                         lenhi = vpd[index];
1518                         index += 1;
1519                         i = ((((unsigned short)lenhi) << 8) + lenlo);
1520                         index += i;
1521                         break;
1522                 case 0x90:
1523                         index += 1;
1524                         lenlo = vpd[index];
1525                         index += 1;
1526                         lenhi = vpd[index];
1527                         index += 1;
1528                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
1529                         if (Length > len - index)
1530                                 Length = len - index;
1531                         while (Length > 0) {
1532                         /* Look for Serial Number */
1533                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
1534                                 index += 2;
1535                                 i = vpd[index];
1536                                 index += 1;
1537                                 j = 0;
1538                                 Length -= (3+i);
1539                                 while(i--) {
1540                                         phba->SerialNumber[j++] = vpd[index++];
1541                                         if (j == 31)
1542                                                 break;
1543                                 }
1544                                 phba->SerialNumber[j] = 0;
1545                                 continue;
1546                         }
1547                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
1548                                 phba->vpd_flag |= VPD_MODEL_DESC;
1549                                 index += 2;
1550                                 i = vpd[index];
1551                                 index += 1;
1552                                 j = 0;
1553                                 Length -= (3+i);
1554                                 while(i--) {
1555                                         phba->ModelDesc[j++] = vpd[index++];
1556                                         if (j == 255)
1557                                                 break;
1558                                 }
1559                                 phba->ModelDesc[j] = 0;
1560                                 continue;
1561                         }
1562                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
1563                                 phba->vpd_flag |= VPD_MODEL_NAME;
1564                                 index += 2;
1565                                 i = vpd[index];
1566                                 index += 1;
1567                                 j = 0;
1568                                 Length -= (3+i);
1569                                 while(i--) {
1570                                         phba->ModelName[j++] = vpd[index++];
1571                                         if (j == 79)
1572                                                 break;
1573                                 }
1574                                 phba->ModelName[j] = 0;
1575                                 continue;
1576                         }
1577                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
1578                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
1579                                 index += 2;
1580                                 i = vpd[index];
1581                                 index += 1;
1582                                 j = 0;
1583                                 Length -= (3+i);
1584                                 while(i--) {
1585                                         phba->ProgramType[j++] = vpd[index++];
1586                                         if (j == 255)
1587                                                 break;
1588                                 }
1589                                 phba->ProgramType[j] = 0;
1590                                 continue;
1591                         }
1592                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
1593                                 phba->vpd_flag |= VPD_PORT;
1594                                 index += 2;
1595                                 i = vpd[index];
1596                                 index += 1;
1597                                 j = 0;
1598                                 Length -= (3+i);
1599                                 while(i--) {
1600                                 phba->Port[j++] = vpd[index++];
1601                                 if (j == 19)
1602                                         break;
1603                                 }
1604                                 phba->Port[j] = 0;
1605                                 continue;
1606                         }
1607                         else {
1608                                 index += 2;
1609                                 i = vpd[index];
1610                                 index += 1;
1611                                 index += i;
1612                                 Length -= (3 + i);
1613                         }
1614                 }
1615                 finished = 0;
1616                 break;
1617                 case 0x78:
1618                         finished = 1;
1619                         break;
1620                 default:
1621                         index ++;
1622                         break;
1623                 }
1624         }
1625
1626         return(1);
1627 }
1628
1629 /**
1630  * lpfc_get_hba_model_desc - Retrieve HBA device model name and description
1631  * @phba: pointer to lpfc hba data structure.
1632  * @mdp: pointer to the data structure to hold the derived model name.
1633  * @descp: pointer to the data structure to hold the derived description.
1634  *
1635  * This routine retrieves HBA's description based on its registered PCI device
1636  * ID. The @descp passed into this function points to an array of 256 chars. It
1637  * shall be returned with the model name, maximum speed, and the host bus type.
1638  * The @mdp passed into this function points to an array of 80 chars. When the
1639  * function returns, the @mdp will be filled with the model name.
1640  **/
1641 static void
1642 lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp)
1643 {
1644         lpfc_vpd_t *vp;
1645         uint16_t dev_id = phba->pcidev->device;
1646         int max_speed;
1647         int GE = 0;
1648         int oneConnect = 0; /* default is not a oneConnect */
1649         struct {
1650                 char *name;
1651                 char *bus;
1652                 char *function;
1653         } m = {"<Unknown>", "", ""};
1654
1655         if (mdp && mdp[0] != '\0'
1656                 && descp && descp[0] != '\0')
1657                 return;
1658
1659         if (phba->lmt & LMT_10Gb)
1660                 max_speed = 10;
1661         else if (phba->lmt & LMT_8Gb)
1662                 max_speed = 8;
1663         else if (phba->lmt & LMT_4Gb)
1664                 max_speed = 4;
1665         else if (phba->lmt & LMT_2Gb)
1666                 max_speed = 2;
1667         else
1668                 max_speed = 1;
1669
1670         vp = &phba->vpd;
1671
1672         switch (dev_id) {
1673         case PCI_DEVICE_ID_FIREFLY:
1674                 m = (typeof(m)){"LP6000", "PCI", "Fibre Channel Adapter"};
1675                 break;
1676         case PCI_DEVICE_ID_SUPERFLY:
1677                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
1678                         m = (typeof(m)){"LP7000", "PCI",
1679                                         "Fibre Channel Adapter"};
1680                 else
1681                         m = (typeof(m)){"LP7000E", "PCI",
1682                                         "Fibre Channel Adapter"};
1683                 break;
1684         case PCI_DEVICE_ID_DRAGONFLY:
1685                 m = (typeof(m)){"LP8000", "PCI",
1686                                 "Fibre Channel Adapter"};
1687                 break;
1688         case PCI_DEVICE_ID_CENTAUR:
1689                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
1690                         m = (typeof(m)){"LP9002", "PCI",
1691                                         "Fibre Channel Adapter"};
1692                 else
1693                         m = (typeof(m)){"LP9000", "PCI",
1694                                         "Fibre Channel Adapter"};
1695                 break;
1696         case PCI_DEVICE_ID_RFLY:
1697                 m = (typeof(m)){"LP952", "PCI",
1698                                 "Fibre Channel Adapter"};
1699                 break;
1700         case PCI_DEVICE_ID_PEGASUS:
1701                 m = (typeof(m)){"LP9802", "PCI-X",
1702                                 "Fibre Channel Adapter"};
1703                 break;
1704         case PCI_DEVICE_ID_THOR:
1705                 m = (typeof(m)){"LP10000", "PCI-X",
1706                                 "Fibre Channel Adapter"};
1707                 break;
1708         case PCI_DEVICE_ID_VIPER:
1709                 m = (typeof(m)){"LPX1000",  "PCI-X",
1710                                 "Fibre Channel Adapter"};
1711                 break;
1712         case PCI_DEVICE_ID_PFLY:
1713                 m = (typeof(m)){"LP982", "PCI-X",
1714                                 "Fibre Channel Adapter"};
1715                 break;
1716         case PCI_DEVICE_ID_TFLY:
1717                 m = (typeof(m)){"LP1050", "PCI-X",
1718                                 "Fibre Channel Adapter"};
1719                 break;
1720         case PCI_DEVICE_ID_HELIOS:
1721                 m = (typeof(m)){"LP11000", "PCI-X2",
1722                                 "Fibre Channel Adapter"};
1723                 break;
1724         case PCI_DEVICE_ID_HELIOS_SCSP:
1725                 m = (typeof(m)){"LP11000-SP", "PCI-X2",
1726                                 "Fibre Channel Adapter"};
1727                 break;
1728         case PCI_DEVICE_ID_HELIOS_DCSP:
1729                 m = (typeof(m)){"LP11002-SP",  "PCI-X2",
1730                                 "Fibre Channel Adapter"};
1731                 break;
1732         case PCI_DEVICE_ID_NEPTUNE:
1733                 m = (typeof(m)){"LPe1000", "PCIe", "Fibre Channel Adapter"};
1734                 break;
1735         case PCI_DEVICE_ID_NEPTUNE_SCSP:
1736                 m = (typeof(m)){"LPe1000-SP", "PCIe", "Fibre Channel Adapter"};
1737                 break;
1738         case PCI_DEVICE_ID_NEPTUNE_DCSP:
1739                 m = (typeof(m)){"LPe1002-SP", "PCIe", "Fibre Channel Adapter"};
1740                 break;
1741         case PCI_DEVICE_ID_BMID:
1742                 m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"};
1743                 break;
1744         case PCI_DEVICE_ID_BSMB:
1745                 m = (typeof(m)){"LP111", "PCI-X2", "Fibre Channel Adapter"};
1746                 break;
1747         case PCI_DEVICE_ID_ZEPHYR:
1748                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1749                 break;
1750         case PCI_DEVICE_ID_ZEPHYR_SCSP:
1751                 m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"};
1752                 break;
1753         case PCI_DEVICE_ID_ZEPHYR_DCSP:
1754                 m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"};
1755                 GE = 1;
1756                 break;
1757         case PCI_DEVICE_ID_ZMID:
1758                 m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"};
1759                 break;
1760         case PCI_DEVICE_ID_ZSMB:
1761                 m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"};
1762                 break;
1763         case PCI_DEVICE_ID_LP101:
1764                 m = (typeof(m)){"LP101", "PCI-X", "Fibre Channel Adapter"};
1765                 break;
1766         case PCI_DEVICE_ID_LP10000S:
1767                 m = (typeof(m)){"LP10000-S", "PCI", "Fibre Channel Adapter"};
1768                 break;
1769         case PCI_DEVICE_ID_LP11000S:
1770                 m = (typeof(m)){"LP11000-S", "PCI-X2", "Fibre Channel Adapter"};
1771                 break;
1772         case PCI_DEVICE_ID_LPE11000S:
1773                 m = (typeof(m)){"LPe11000-S", "PCIe", "Fibre Channel Adapter"};
1774                 break;
1775         case PCI_DEVICE_ID_SAT:
1776                 m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"};
1777                 break;
1778         case PCI_DEVICE_ID_SAT_MID:
1779                 m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"};
1780                 break;
1781         case PCI_DEVICE_ID_SAT_SMB:
1782                 m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"};
1783                 break;
1784         case PCI_DEVICE_ID_SAT_DCSP:
1785                 m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"};
1786                 break;
1787         case PCI_DEVICE_ID_SAT_SCSP:
1788                 m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"};
1789                 break;
1790         case PCI_DEVICE_ID_SAT_S:
1791                 m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"};
1792                 break;
1793         case PCI_DEVICE_ID_HORNET:
1794                 m = (typeof(m)){"LP21000", "PCIe", "FCoE Adapter"};
1795                 GE = 1;
1796                 break;
1797         case PCI_DEVICE_ID_PROTEUS_VF:
1798                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1799                                 "Fibre Channel Adapter"};
1800                 break;
1801         case PCI_DEVICE_ID_PROTEUS_PF:
1802                 m = (typeof(m)){"LPev12000", "PCIe IOV",
1803                                 "Fibre Channel Adapter"};
1804                 break;
1805         case PCI_DEVICE_ID_PROTEUS_S:
1806                 m = (typeof(m)){"LPemv12002-S", "PCIe IOV",
1807                                 "Fibre Channel Adapter"};
1808                 break;
1809         case PCI_DEVICE_ID_TIGERSHARK:
1810                 oneConnect = 1;
1811                 m = (typeof(m)){"OCe10100", "PCIe", "FCoE"};
1812                 break;
1813         case PCI_DEVICE_ID_TOMCAT:
1814                 oneConnect = 1;
1815                 m = (typeof(m)){"OCe11100", "PCIe", "FCoE"};
1816                 break;
1817         case PCI_DEVICE_ID_FALCON:
1818                 m = (typeof(m)){"LPSe12002-ML1-E", "PCIe",
1819                                 "EmulexSecure Fibre"};
1820                 break;
1821         default:
1822                 m = (typeof(m)){"Unknown", "", ""};
1823                 break;
1824         }
1825
1826         if (mdp && mdp[0] == '\0')
1827                 snprintf(mdp, 79,"%s", m.name);
1828         /* oneConnect hba requires special processing, they are all initiators
1829          * and we put the port number on the end
1830          */
1831         if (descp && descp[0] == '\0') {
1832                 if (oneConnect)
1833                         snprintf(descp, 255,
1834                                 "Emulex OneConnect %s, %s Initiator, Port %s",
1835                                 m.name, m.function,
1836                                 phba->Port);
1837                 else
1838                         snprintf(descp, 255,
1839                                 "Emulex %s %d%s %s %s",
1840                                 m.name, max_speed, (GE) ? "GE" : "Gb",
1841                                 m.bus, m.function);
1842         }
1843 }
1844
1845 /**
1846  * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring
1847  * @phba: pointer to lpfc hba data structure.
1848  * @pring: pointer to a IOCB ring.
1849  * @cnt: the number of IOCBs to be posted to the IOCB ring.
1850  *
1851  * This routine posts a given number of IOCBs with the associated DMA buffer
1852  * descriptors specified by the cnt argument to the given IOCB ring.
1853  *
1854  * Return codes
1855  *   The number of IOCBs NOT able to be posted to the IOCB ring.
1856  **/
1857 int
1858 lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt)
1859 {
1860         IOCB_t *icmd;
1861         struct lpfc_iocbq *iocb;
1862         struct lpfc_dmabuf *mp1, *mp2;
1863
1864         cnt += pring->missbufcnt;
1865
1866         /* While there are buffers to post */
1867         while (cnt > 0) {
1868                 /* Allocate buffer for  command iocb */
1869                 iocb = lpfc_sli_get_iocbq(phba);
1870                 if (iocb == NULL) {
1871                         pring->missbufcnt = cnt;
1872                         return cnt;
1873                 }
1874                 icmd = &iocb->iocb;
1875
1876                 /* 2 buffers can be posted per command */
1877                 /* Allocate buffer to post */
1878                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1879                 if (mp1)
1880                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys);
1881                 if (!mp1 || !mp1->virt) {
1882                         kfree(mp1);
1883                         lpfc_sli_release_iocbq(phba, iocb);
1884                         pring->missbufcnt = cnt;
1885                         return cnt;
1886                 }
1887
1888                 INIT_LIST_HEAD(&mp1->list);
1889                 /* Allocate buffer to post */
1890                 if (cnt > 1) {
1891                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
1892                         if (mp2)
1893                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
1894                                                             &mp2->phys);
1895                         if (!mp2 || !mp2->virt) {
1896                                 kfree(mp2);
1897                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1898                                 kfree(mp1);
1899                                 lpfc_sli_release_iocbq(phba, iocb);
1900                                 pring->missbufcnt = cnt;
1901                                 return cnt;
1902                         }
1903
1904                         INIT_LIST_HEAD(&mp2->list);
1905                 } else {
1906                         mp2 = NULL;
1907                 }
1908
1909                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1910                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1911                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1912                 icmd->ulpBdeCount = 1;
1913                 cnt--;
1914                 if (mp2) {
1915                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1916                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1917                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1918                         cnt--;
1919                         icmd->ulpBdeCount = 2;
1920                 }
1921
1922                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1923                 icmd->ulpLe = 1;
1924
1925                 if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) ==
1926                     IOCB_ERROR) {
1927                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1928                         kfree(mp1);
1929                         cnt++;
1930                         if (mp2) {
1931                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1932                                 kfree(mp2);
1933                                 cnt++;
1934                         }
1935                         lpfc_sli_release_iocbq(phba, iocb);
1936                         pring->missbufcnt = cnt;
1937                         return cnt;
1938                 }
1939                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1940                 if (mp2)
1941                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1942         }
1943         pring->missbufcnt = 0;
1944         return 0;
1945 }
1946
1947 /**
1948  * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring
1949  * @phba: pointer to lpfc hba data structure.
1950  *
1951  * This routine posts initial receive IOCB buffers to the ELS ring. The
1952  * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is
1953  * set to 64 IOCBs.
1954  *
1955  * Return codes
1956  *   0 - success (currently always success)
1957  **/
1958 static int
1959 lpfc_post_rcv_buf(struct lpfc_hba *phba)
1960 {
1961         struct lpfc_sli *psli = &phba->sli;
1962
1963         /* Ring 0, ELS / CT buffers */
1964         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0);
1965         /* Ring 2 - FCP no buffers needed */
1966
1967         return 0;
1968 }
1969
1970 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1971
1972 /**
1973  * lpfc_sha_init - Set up initial array of hash table entries
1974  * @HashResultPointer: pointer to an array as hash table.
1975  *
1976  * This routine sets up the initial values to the array of hash table entries
1977  * for the LC HBAs.
1978  **/
1979 static void
1980 lpfc_sha_init(uint32_t * HashResultPointer)
1981 {
1982         HashResultPointer[0] = 0x67452301;
1983         HashResultPointer[1] = 0xEFCDAB89;
1984         HashResultPointer[2] = 0x98BADCFE;
1985         HashResultPointer[3] = 0x10325476;
1986         HashResultPointer[4] = 0xC3D2E1F0;
1987 }
1988
1989 /**
1990  * lpfc_sha_iterate - Iterate initial hash table with the working hash table
1991  * @HashResultPointer: pointer to an initial/result hash table.
1992  * @HashWorkingPointer: pointer to an working hash table.
1993  *
1994  * This routine iterates an initial hash table pointed by @HashResultPointer
1995  * with the values from the working hash table pointeed by @HashWorkingPointer.
1996  * The results are putting back to the initial hash table, returned through
1997  * the @HashResultPointer as the result hash table.
1998  **/
1999 static void
2000 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
2001 {
2002         int t;
2003         uint32_t TEMP;
2004         uint32_t A, B, C, D, E;
2005         t = 16;
2006         do {
2007                 HashWorkingPointer[t] =
2008                     S(1,
2009                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
2010                                                                      8] ^
2011                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
2012         } while (++t <= 79);
2013         t = 0;
2014         A = HashResultPointer[0];
2015         B = HashResultPointer[1];
2016         C = HashResultPointer[2];
2017         D = HashResultPointer[3];
2018         E = HashResultPointer[4];
2019
2020         do {
2021                 if (t < 20) {
2022                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
2023                 } else if (t < 40) {
2024                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
2025                 } else if (t < 60) {
2026                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
2027                 } else {
2028                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
2029                 }
2030                 TEMP += S(5, A) + E + HashWorkingPointer[t];
2031                 E = D;
2032                 D = C;
2033                 C = S(30, B);
2034                 B = A;
2035                 A = TEMP;
2036         } while (++t <= 79);
2037
2038         HashResultPointer[0] += A;
2039         HashResultPointer[1] += B;
2040         HashResultPointer[2] += C;
2041         HashResultPointer[3] += D;
2042         HashResultPointer[4] += E;
2043
2044 }
2045
2046 /**
2047  * lpfc_challenge_key - Create challenge key based on WWPN of the HBA
2048  * @RandomChallenge: pointer to the entry of host challenge random number array.
2049  * @HashWorking: pointer to the entry of the working hash array.
2050  *
2051  * This routine calculates the working hash array referred by @HashWorking
2052  * from the challenge random numbers associated with the host, referred by
2053  * @RandomChallenge. The result is put into the entry of the working hash
2054  * array and returned by reference through @HashWorking.
2055  **/
2056 static void
2057 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
2058 {
2059         *HashWorking = (*RandomChallenge ^ *HashWorking);
2060 }
2061
2062 /**
2063  * lpfc_hba_init - Perform special handling for LC HBA initialization
2064  * @phba: pointer to lpfc hba data structure.
2065  * @hbainit: pointer to an array of unsigned 32-bit integers.
2066  *
2067  * This routine performs the special handling for LC HBA initialization.
2068  **/
2069 void
2070 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
2071 {
2072         int t;
2073         uint32_t *HashWorking;
2074         uint32_t *pwwnn = (uint32_t *) phba->wwnn;
2075
2076         HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL);
2077         if (!HashWorking)
2078                 return;
2079
2080         HashWorking[0] = HashWorking[78] = *pwwnn++;
2081         HashWorking[1] = HashWorking[79] = *pwwnn;
2082
2083         for (t = 0; t < 7; t++)
2084                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
2085
2086         lpfc_sha_init(hbainit);
2087         lpfc_sha_iterate(hbainit, HashWorking);
2088         kfree(HashWorking);
2089 }
2090
2091 /**
2092  * lpfc_cleanup - Performs vport cleanups before deleting a vport
2093  * @vport: pointer to a virtual N_Port data structure.
2094  *
2095  * This routine performs the necessary cleanups before deleting the @vport.
2096  * It invokes the discovery state machine to perform necessary state
2097  * transitions and to release the ndlps associated with the @vport. Note,
2098  * the physical port is treated as @vport 0.
2099  **/
2100 void
2101 lpfc_cleanup(struct lpfc_vport *vport)
2102 {
2103         struct lpfc_hba   *phba = vport->phba;
2104         struct lpfc_nodelist *ndlp, *next_ndlp;
2105         int i = 0;
2106
2107         if (phba->link_state > LPFC_LINK_DOWN)
2108                 lpfc_port_link_failure(vport);
2109
2110         list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
2111                 if (!NLP_CHK_NODE_ACT(ndlp)) {
2112                         ndlp = lpfc_enable_node(vport, ndlp,
2113                                                 NLP_STE_UNUSED_NODE);
2114                         if (!ndlp)
2115                                 continue;
2116                         spin_lock_irq(&phba->ndlp_lock);
2117                         NLP_SET_FREE_REQ(ndlp);
2118                         spin_unlock_irq(&phba->ndlp_lock);
2119                         /* Trigger the release of the ndlp memory */
2120                         lpfc_nlp_put(ndlp);
2121                         continue;
2122                 }
2123                 spin_lock_irq(&phba->ndlp_lock);
2124                 if (NLP_CHK_FREE_REQ(ndlp)) {
2125                         /* The ndlp should not be in memory free mode already */
2126                         spin_unlock_irq(&phba->ndlp_lock);
2127                         continue;
2128                 } else
2129                         /* Indicate request for freeing ndlp memory */
2130                         NLP_SET_FREE_REQ(ndlp);
2131                 spin_unlock_irq(&phba->ndlp_lock);
2132
2133                 if (vport->port_type != LPFC_PHYSICAL_PORT &&
2134                     ndlp->nlp_DID == Fabric_DID) {
2135                         /* Just free up ndlp with Fabric_DID for vports */
2136                         lpfc_nlp_put(ndlp);
2137                         continue;
2138                 }
2139
2140                 if (ndlp->nlp_type & NLP_FABRIC)
2141                         lpfc_disc_state_machine(vport, ndlp, NULL,
2142                                         NLP_EVT_DEVICE_RECOVERY);
2143
2144                 lpfc_disc_state_machine(vport, ndlp, NULL,
2145                                              NLP_EVT_DEVICE_RM);
2146
2147         }
2148
2149         /* At this point, ALL ndlp's should be gone
2150          * because of the previous NLP_EVT_DEVICE_RM.
2151          * Lets wait for this to happen, if needed.
2152          */
2153         while (!list_empty(&vport->fc_nodes)) {
2154                 if (i++ > 3000) {
2155                         lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY,
2156                                 "0233 Nodelist not empty\n");
2157                         list_for_each_entry_safe(ndlp, next_ndlp,
2158                                                 &vport->fc_nodes, nlp_listp) {
2159                                 lpfc_printf_vlog(ndlp->vport, KERN_ERR,
2160                                                 LOG_NODE,
2161                                                 "0282 did:x%x ndlp:x%p "
2162                                                 "usgmap:x%x refcnt:%d\n",
2163                                                 ndlp->nlp_DID, (void *)ndlp,
2164                                                 ndlp->nlp_usg_map,
2165                                                 atomic_read(
2166                                                         &ndlp->kref.refcount));
2167                         }
2168                         break;
2169                 }
2170
2171                 /* Wait for any activity on ndlps to settle */
2172                 msleep(10);
2173         }
2174 }
2175
2176 /**
2177  * lpfc_stop_vport_timers - Stop all the timers associated with a vport
2178  * @vport: pointer to a virtual N_Port data structure.
2179  *
2180  * This routine stops all the timers associated with a @vport. This function
2181  * is invoked before disabling or deleting a @vport. Note that the physical
2182  * port is treated as @vport 0.
2183  **/
2184 void
2185 lpfc_stop_vport_timers(struct lpfc_vport *vport)
2186 {
2187         del_timer_sync(&vport->els_tmofunc);
2188         del_timer_sync(&vport->fc_fdmitmo);
2189         lpfc_can_disctmo(vport);
2190         return;
2191 }
2192
2193 /**
2194  * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2195  * @phba: pointer to lpfc hba data structure.
2196  *
2197  * This routine stops the SLI4 FCF rediscover wait timer if it's on. The
2198  * caller of this routine should already hold the host lock.
2199  **/
2200 void
2201 __lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2202 {
2203         /* Clear pending FCF rediscovery wait and failover in progress flags */
2204         phba->fcf.fcf_flag &= ~(FCF_REDISC_PEND |
2205                                 FCF_DEAD_DISC |
2206                                 FCF_ACVL_DISC);
2207         /* Now, try to stop the timer */
2208         del_timer(&phba->fcf.redisc_wait);
2209 }
2210
2211 /**
2212  * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer
2213  * @phba: pointer to lpfc hba data structure.
2214  *
2215  * This routine stops the SLI4 FCF rediscover wait timer if it's on. It
2216  * checks whether the FCF rediscovery wait timer is pending with the host
2217  * lock held before proceeding with disabling the timer and clearing the
2218  * wait timer pendig flag.
2219  **/
2220 void
2221 lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba)
2222 {
2223         spin_lock_irq(&phba->hbalock);
2224         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2225                 /* FCF rediscovery timer already fired or stopped */
2226                 spin_unlock_irq(&phba->hbalock);
2227                 return;
2228         }
2229         __lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2230         spin_unlock_irq(&phba->hbalock);
2231 }
2232
2233 /**
2234  * lpfc_stop_hba_timers - Stop all the timers associated with an HBA
2235  * @phba: pointer to lpfc hba data structure.
2236  *
2237  * This routine stops all the timers associated with a HBA. This function is
2238  * invoked before either putting a HBA offline or unloading the driver.
2239  **/
2240 void
2241 lpfc_stop_hba_timers(struct lpfc_hba *phba)
2242 {
2243         lpfc_stop_vport_timers(phba->pport);
2244         del_timer_sync(&phba->sli.mbox_tmo);
2245         del_timer_sync(&phba->fabric_block_timer);
2246         del_timer_sync(&phba->eratt_poll);
2247         del_timer_sync(&phba->hb_tmofunc);
2248         phba->hb_outstanding = 0;
2249
2250         switch (phba->pci_dev_grp) {
2251         case LPFC_PCI_DEV_LP:
2252                 /* Stop any LightPulse device specific driver timers */
2253                 del_timer_sync(&phba->fcp_poll_timer);
2254                 break;
2255         case LPFC_PCI_DEV_OC:
2256                 /* Stop any OneConnect device sepcific driver timers */
2257                 lpfc_sli4_stop_fcf_redisc_wait_timer(phba);
2258                 break;
2259         default:
2260                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2261                                 "0297 Invalid device group (x%x)\n",
2262                                 phba->pci_dev_grp);
2263                 break;
2264         }
2265         return;
2266 }
2267
2268 /**
2269  * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked
2270  * @phba: pointer to lpfc hba data structure.
2271  *
2272  * This routine marks a HBA's management interface as blocked. Once the HBA's
2273  * management interface is marked as blocked, all the user space access to
2274  * the HBA, whether they are from sysfs interface or libdfc interface will
2275  * all be blocked. The HBA is set to block the management interface when the
2276  * driver prepares the HBA interface for online or offline.
2277  **/
2278 static void
2279 lpfc_block_mgmt_io(struct lpfc_hba * phba)
2280 {
2281         unsigned long iflag;
2282
2283         spin_lock_irqsave(&phba->hbalock, iflag);
2284         phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO;
2285         spin_unlock_irqrestore(&phba->hbalock, iflag);
2286 }
2287
2288 /**
2289  * lpfc_online - Initialize and bring a HBA online
2290  * @phba: pointer to lpfc hba data structure.
2291  *
2292  * This routine initializes the HBA and brings a HBA online. During this
2293  * process, the management interface is blocked to prevent user space access
2294  * to the HBA interfering with the driver initialization.
2295  *
2296  * Return codes
2297  *   0 - successful
2298  *   1 - failed
2299  **/
2300 int
2301 lpfc_online(struct lpfc_hba *phba)
2302 {
2303         struct lpfc_vport *vport;
2304         struct lpfc_vport **vports;
2305         int i;
2306
2307         if (!phba)
2308                 return 0;
2309         vport = phba->pport;
2310
2311         if (!(vport->fc_flag & FC_OFFLINE_MODE))
2312                 return 0;
2313
2314         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2315                         "0458 Bring Adapter online\n");
2316
2317         lpfc_block_mgmt_io(phba);
2318
2319         if (!lpfc_sli_queue_setup(phba)) {
2320                 lpfc_unblock_mgmt_io(phba);
2321                 return 1;
2322         }
2323
2324         if (phba->sli_rev == LPFC_SLI_REV4) {
2325                 if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */
2326                         lpfc_unblock_mgmt_io(phba);
2327                         return 1;
2328                 }
2329         } else {
2330                 if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */
2331                         lpfc_unblock_mgmt_io(phba);
2332                         return 1;
2333                 }
2334         }
2335
2336         vports = lpfc_create_vport_work_array(phba);
2337         if (vports != NULL)
2338                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2339                         struct Scsi_Host *shost;
2340                         shost = lpfc_shost_from_vport(vports[i]);
2341                         spin_lock_irq(shost->host_lock);
2342                         vports[i]->fc_flag &= ~FC_OFFLINE_MODE;
2343                         if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)
2344                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2345                         if (phba->sli_rev == LPFC_SLI_REV4)
2346                                 vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI;
2347                         spin_unlock_irq(shost->host_lock);
2348                 }
2349                 lpfc_destroy_vport_work_array(phba, vports);
2350
2351         lpfc_unblock_mgmt_io(phba);
2352         return 0;
2353 }
2354
2355 /**
2356  * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked
2357  * @phba: pointer to lpfc hba data structure.
2358  *
2359  * This routine marks a HBA's management interface as not blocked. Once the
2360  * HBA's management interface is marked as not blocked, all the user space
2361  * access to the HBA, whether they are from sysfs interface or libdfc
2362  * interface will be allowed. The HBA is set to block the management interface
2363  * when the driver prepares the HBA interface for online or offline and then
2364  * set to unblock the management interface afterwards.
2365  **/
2366 void
2367 lpfc_unblock_mgmt_io(struct lpfc_hba * phba)
2368 {
2369         unsigned long iflag;
2370
2371         spin_lock_irqsave(&phba->hbalock, iflag);
2372         phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO;
2373         spin_unlock_irqrestore(&phba->hbalock, iflag);
2374 }
2375
2376 /**
2377  * lpfc_offline_prep - Prepare a HBA to be brought offline
2378  * @phba: pointer to lpfc hba data structure.
2379  *
2380  * This routine is invoked to prepare a HBA to be brought offline. It performs
2381  * unregistration login to all the nodes on all vports and flushes the mailbox
2382  * queue to make it ready to be brought offline.
2383  **/
2384 void
2385 lpfc_offline_prep(struct lpfc_hba * phba)
2386 {
2387         struct lpfc_vport *vport = phba->pport;
2388         struct lpfc_nodelist  *ndlp, *next_ndlp;
2389         struct lpfc_vport **vports;
2390         struct Scsi_Host *shost;
2391         int i;
2392
2393         if (vport->fc_flag & FC_OFFLINE_MODE)
2394                 return;
2395
2396         lpfc_block_mgmt_io(phba);
2397
2398         lpfc_linkdown(phba);
2399
2400         /* Issue an unreg_login to all nodes on all vports */
2401         vports = lpfc_create_vport_work_array(phba);
2402         if (vports != NULL) {
2403                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2404                         if (vports[i]->load_flag & FC_UNLOADING)
2405                                 continue;
2406                         shost = lpfc_shost_from_vport(vports[i]);
2407                         spin_lock_irq(shost->host_lock);
2408                         vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED;
2409                         vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2410                         vports[i]->fc_flag &= ~FC_VFI_REGISTERED;
2411                         spin_unlock_irq(shost->host_lock);
2412
2413                         shost = lpfc_shost_from_vport(vports[i]);
2414                         list_for_each_entry_safe(ndlp, next_ndlp,
2415                                                  &vports[i]->fc_nodes,
2416                                                  nlp_listp) {
2417                                 if (!NLP_CHK_NODE_ACT(ndlp))
2418                                         continue;
2419                                 if (ndlp->nlp_state == NLP_STE_UNUSED_NODE)
2420                                         continue;
2421                                 if (ndlp->nlp_type & NLP_FABRIC) {
2422                                         lpfc_disc_state_machine(vports[i], ndlp,
2423                                                 NULL, NLP_EVT_DEVICE_RECOVERY);
2424                                         lpfc_disc_state_machine(vports[i], ndlp,
2425                                                 NULL, NLP_EVT_DEVICE_RM);
2426                                 }
2427                                 spin_lock_irq(shost->host_lock);
2428                                 ndlp->nlp_flag &= ~NLP_NPR_ADISC;
2429                                 spin_unlock_irq(shost->host_lock);
2430                                 lpfc_unreg_rpi(vports[i], ndlp);
2431                         }
2432                 }
2433         }
2434         lpfc_destroy_vport_work_array(phba, vports);
2435
2436         lpfc_sli_mbox_sys_shutdown(phba);
2437 }
2438
2439 /**
2440  * lpfc_offline - Bring a HBA offline
2441  * @phba: pointer to lpfc hba data structure.
2442  *
2443  * This routine actually brings a HBA offline. It stops all the timers
2444  * associated with the HBA, brings down the SLI layer, and eventually
2445  * marks the HBA as in offline state for the upper layer protocol.
2446  **/
2447 void
2448 lpfc_offline(struct lpfc_hba *phba)
2449 {
2450         struct Scsi_Host  *shost;
2451         struct lpfc_vport **vports;
2452         int i;
2453
2454         if (phba->pport->fc_flag & FC_OFFLINE_MODE)
2455                 return;
2456
2457         /* stop port and all timers associated with this hba */
2458         lpfc_stop_port(phba);
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                         lpfc_stop_vport_timers(vports[i]);
2463         lpfc_destroy_vport_work_array(phba, vports);
2464         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
2465                         "0460 Bring Adapter offline\n");
2466         /* Bring down the SLI Layer and cleanup.  The HBA is offline
2467            now.  */
2468         lpfc_sli_hba_down(phba);
2469         spin_lock_irq(&phba->hbalock);
2470         phba->work_ha = 0;
2471         spin_unlock_irq(&phba->hbalock);
2472         vports = lpfc_create_vport_work_array(phba);
2473         if (vports != NULL)
2474                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
2475                         shost = lpfc_shost_from_vport(vports[i]);
2476                         spin_lock_irq(shost->host_lock);
2477                         vports[i]->work_port_events = 0;
2478                         vports[i]->fc_flag |= FC_OFFLINE_MODE;
2479                         spin_unlock_irq(shost->host_lock);
2480                 }
2481         lpfc_destroy_vport_work_array(phba, vports);
2482 }
2483
2484 /**
2485  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
2486  * @phba: pointer to lpfc hba data structure.
2487  *
2488  * This routine is to free all the SCSI buffers and IOCBs from the driver
2489  * list back to kernel. It is called from lpfc_pci_remove_one to free
2490  * the internal resources before the device is removed from the system.
2491  *
2492  * Return codes
2493  *   0 - successful (for now, it always returns 0)
2494  **/
2495 static int
2496 lpfc_scsi_free(struct lpfc_hba *phba)
2497 {
2498         struct lpfc_scsi_buf *sb, *sb_next;
2499         struct lpfc_iocbq *io, *io_next;
2500
2501         spin_lock_irq(&phba->hbalock);
2502         /* Release all the lpfc_scsi_bufs maintained by this host. */
2503         spin_lock(&phba->scsi_buf_list_lock);
2504         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
2505                 list_del(&sb->list);
2506                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
2507                               sb->dma_handle);
2508                 kfree(sb);
2509                 phba->total_scsi_bufs--;
2510         }
2511         spin_unlock(&phba->scsi_buf_list_lock);
2512
2513         /* Release all the lpfc_iocbq entries maintained by this host. */
2514         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
2515                 list_del(&io->list);
2516                 kfree(io);
2517                 phba->total_iocbq_bufs--;
2518         }
2519         spin_unlock_irq(&phba->hbalock);
2520         return 0;
2521 }
2522
2523 /**
2524  * lpfc_create_port - Create an FC port
2525  * @phba: pointer to lpfc hba data structure.
2526  * @instance: a unique integer ID to this FC port.
2527  * @dev: pointer to the device data structure.
2528  *
2529  * This routine creates a FC port for the upper layer protocol. The FC port
2530  * can be created on top of either a physical port or a virtual port provided
2531  * by the HBA. This routine also allocates a SCSI host data structure (shost)
2532  * and associates the FC port created before adding the shost into the SCSI
2533  * layer.
2534  *
2535  * Return codes
2536  *   @vport - pointer to the virtual N_Port data structure.
2537  *   NULL - port create failed.
2538  **/
2539 struct lpfc_vport *
2540 lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
2541 {
2542         struct lpfc_vport *vport;
2543         struct Scsi_Host  *shost;
2544         int error = 0;
2545
2546         if (dev != &phba->pcidev->dev)
2547                 shost = scsi_host_alloc(&lpfc_vport_template,
2548                                         sizeof(struct lpfc_vport));
2549         else
2550                 shost = scsi_host_alloc(&lpfc_template,
2551                                         sizeof(struct lpfc_vport));
2552         if (!shost)
2553                 goto out;
2554
2555         vport = (struct lpfc_vport *) shost->hostdata;
2556         vport->phba = phba;
2557         vport->load_flag |= FC_LOADING;
2558         vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI;
2559         vport->fc_rscn_flush = 0;
2560
2561         lpfc_get_vport_cfgparam(vport);
2562         shost->unique_id = instance;
2563         shost->max_id = LPFC_MAX_TARGET;
2564         shost->max_lun = vport->cfg_max_luns;
2565         shost->this_id = -1;
2566         shost->max_cmd_len = 16;
2567         if (phba->sli_rev == LPFC_SLI_REV4) {
2568                 shost->dma_boundary =
2569                         phba->sli4_hba.pc_sli4_params.sge_supp_len;
2570                 shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2571         }
2572
2573         /*
2574          * Set initial can_queue value since 0 is no longer supported and
2575          * scsi_add_host will fail. This will be adjusted later based on the
2576          * max xri value determined in hba setup.
2577          */
2578         shost->can_queue = phba->cfg_hba_queue_depth - 10;
2579         if (dev != &phba->pcidev->dev) {
2580                 shost->transportt = lpfc_vport_transport_template;
2581                 vport->port_type = LPFC_NPIV_PORT;
2582         } else {
2583                 shost->transportt = lpfc_transport_template;
2584                 vport->port_type = LPFC_PHYSICAL_PORT;
2585         }
2586
2587         /* Initialize all internally managed lists. */
2588         INIT_LIST_HEAD(&vport->fc_nodes);
2589         INIT_LIST_HEAD(&vport->rcv_buffer_list);
2590         spin_lock_init(&vport->work_port_lock);
2591
2592         init_timer(&vport->fc_disctmo);
2593         vport->fc_disctmo.function = lpfc_disc_timeout;
2594         vport->fc_disctmo.data = (unsigned long)vport;
2595
2596         init_timer(&vport->fc_fdmitmo);
2597         vport->fc_fdmitmo.function = lpfc_fdmi_tmo;
2598         vport->fc_fdmitmo.data = (unsigned long)vport;
2599
2600         init_timer(&vport->els_tmofunc);
2601         vport->els_tmofunc.function = lpfc_els_timeout;
2602         vport->els_tmofunc.data = (unsigned long)vport;
2603         if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) {
2604                 phba->menlo_flag |= HBA_MENLO_SUPPORT;
2605                 /* check for menlo minimum sg count */
2606                 if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) {
2607                         phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT;
2608                         shost->sg_tablesize = phba->cfg_sg_seg_cnt;
2609                 }
2610         }
2611
2612         error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
2613         if (error)
2614                 goto out_put_shost;
2615
2616         spin_lock_irq(&phba->hbalock);
2617         list_add_tail(&vport->listentry, &phba->port_list);
2618         spin_unlock_irq(&phba->hbalock);
2619         return vport;
2620
2621 out_put_shost:
2622         scsi_host_put(shost);
2623 out:
2624         return NULL;
2625 }
2626
2627 /**
2628  * destroy_port -  destroy an FC port
2629  * @vport: pointer to an lpfc virtual N_Port data structure.
2630  *
2631  * This routine destroys a FC port from the upper layer protocol. All the
2632  * resources associated with the port are released.
2633  **/
2634 void
2635 destroy_port(struct lpfc_vport *vport)
2636 {
2637         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
2638         struct lpfc_hba  *phba = vport->phba;
2639
2640         lpfc_debugfs_terminate(vport);
2641         fc_remove_host(shost);
2642         scsi_remove_host(shost);
2643
2644         spin_lock_irq(&phba->hbalock);
2645         list_del_init(&vport->listentry);
2646         spin_unlock_irq(&phba->hbalock);
2647
2648         lpfc_cleanup(vport);
2649         return;
2650 }
2651
2652 /**
2653  * lpfc_get_instance - Get a unique integer ID
2654  *
2655  * This routine allocates a unique integer ID from lpfc_hba_index pool. It
2656  * uses the kernel idr facility to perform the task.
2657  *
2658  * Return codes:
2659  *   instance - a unique integer ID allocated as the new instance.
2660  *   -1 - lpfc get instance failed.
2661  **/
2662 int
2663 lpfc_get_instance(void)
2664 {
2665         int instance = 0;
2666
2667         /* Assign an unused number */
2668         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
2669                 return -1;
2670         if (idr_get_new(&lpfc_hba_index, NULL, &instance))
2671                 return -1;
2672         return instance;
2673 }
2674
2675 /**
2676  * lpfc_scan_finished - method for SCSI layer to detect whether scan is done
2677  * @shost: pointer to SCSI host data structure.
2678  * @time: elapsed time of the scan in jiffies.
2679  *
2680  * This routine is called by the SCSI layer with a SCSI host to determine
2681  * whether the scan host is finished.
2682  *
2683  * Note: there is no scan_start function as adapter initialization will have
2684  * asynchronously kicked off the link initialization.
2685  *
2686  * Return codes
2687  *   0 - SCSI host scan is not over yet.
2688  *   1 - SCSI host scan is over.
2689  **/
2690 int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time)
2691 {
2692         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2693         struct lpfc_hba   *phba = vport->phba;
2694         int stat = 0;
2695
2696         spin_lock_irq(shost->host_lock);
2697
2698         if (vport->load_flag & FC_UNLOADING) {
2699                 stat = 1;
2700                 goto finished;
2701         }
2702         if (time >= 30 * HZ) {
2703                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2704                                 "0461 Scanning longer than 30 "
2705                                 "seconds.  Continuing initialization\n");
2706                 stat = 1;
2707                 goto finished;
2708         }
2709         if (time >= 15 * HZ && phba->link_state <= LPFC_LINK_DOWN) {
2710                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2711                                 "0465 Link down longer than 15 "
2712                                 "seconds.  Continuing initialization\n");
2713                 stat = 1;
2714                 goto finished;
2715         }
2716
2717         if (vport->port_state != LPFC_VPORT_READY)
2718                 goto finished;
2719         if (vport->num_disc_nodes || vport->fc_prli_sent)
2720                 goto finished;
2721         if (vport->fc_map_cnt == 0 && time < 2 * HZ)
2722                 goto finished;
2723         if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0)
2724                 goto finished;
2725
2726         stat = 1;
2727
2728 finished:
2729         spin_unlock_irq(shost->host_lock);
2730         return stat;
2731 }
2732
2733 /**
2734  * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port
2735  * @shost: pointer to SCSI host data structure.
2736  *
2737  * This routine initializes a given SCSI host attributes on a FC port. The
2738  * SCSI host can be either on top of a physical port or a virtual port.
2739  **/
2740 void lpfc_host_attrib_init(struct Scsi_Host *shost)
2741 {
2742         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
2743         struct lpfc_hba   *phba = vport->phba;
2744         /*
2745          * Set fixed host attributes.  Must done after lpfc_sli_hba_setup().
2746          */
2747
2748         fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
2749         fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
2750         fc_host_supported_classes(shost) = FC_COS_CLASS3;
2751
2752         memset(fc_host_supported_fc4s(shost), 0,
2753                sizeof(fc_host_supported_fc4s(shost)));
2754         fc_host_supported_fc4s(shost)[2] = 1;
2755         fc_host_supported_fc4s(shost)[7] = 1;
2756
2757         lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost),
2758                                  sizeof fc_host_symbolic_name(shost));
2759
2760         fc_host_supported_speeds(shost) = 0;
2761         if (phba->lmt & LMT_10Gb)
2762                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT;
2763         if (phba->lmt & LMT_8Gb)
2764                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT;
2765         if (phba->lmt & LMT_4Gb)
2766                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT;
2767         if (phba->lmt & LMT_2Gb)
2768                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT;
2769         if (phba->lmt & LMT_1Gb)
2770                 fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT;
2771
2772         fc_host_maxframe_size(shost) =
2773                 (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
2774                 (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb;
2775
2776         /* This value is also unchanging */
2777         memset(fc_host_active_fc4s(shost), 0,
2778                sizeof(fc_host_active_fc4s(shost)));
2779         fc_host_active_fc4s(shost)[2] = 1;
2780         fc_host_active_fc4s(shost)[7] = 1;
2781
2782         fc_host_max_npiv_vports(shost) = phba->max_vpi;
2783         spin_lock_irq(shost->host_lock);
2784         vport->load_flag &= ~FC_LOADING;
2785         spin_unlock_irq(shost->host_lock);
2786 }
2787
2788 /**
2789  * lpfc_stop_port_s3 - Stop SLI3 device port
2790  * @phba: pointer to lpfc hba data structure.
2791  *
2792  * This routine is invoked to stop an SLI3 device port, it stops the device
2793  * from generating interrupts and stops the device driver's timers for the
2794  * device.
2795  **/
2796 static void
2797 lpfc_stop_port_s3(struct lpfc_hba *phba)
2798 {
2799         /* Clear all interrupt enable conditions */
2800         writel(0, phba->HCregaddr);
2801         readl(phba->HCregaddr); /* flush */
2802         /* Clear all pending interrupts */
2803         writel(0xffffffff, phba->HAregaddr);
2804         readl(phba->HAregaddr); /* flush */
2805
2806         /* Reset some HBA SLI setup states */
2807         lpfc_stop_hba_timers(phba);
2808         phba->pport->work_port_events = 0;
2809 }
2810
2811 /**
2812  * lpfc_stop_port_s4 - Stop SLI4 device port
2813  * @phba: pointer to lpfc hba data structure.
2814  *
2815  * This routine is invoked to stop an SLI4 device port, it stops the device
2816  * from generating interrupts and stops the device driver's timers for the
2817  * device.
2818  **/
2819 static void
2820 lpfc_stop_port_s4(struct lpfc_hba *phba)
2821 {
2822         /* Reset some HBA SLI4 setup states */
2823         lpfc_stop_hba_timers(phba);
2824         phba->pport->work_port_events = 0;
2825         phba->sli4_hba.intr_enable = 0;
2826 }
2827
2828 /**
2829  * lpfc_stop_port - Wrapper function for stopping hba port
2830  * @phba: Pointer to HBA context object.
2831  *
2832  * This routine wraps the actual SLI3 or SLI4 hba stop port routine from
2833  * the API jump table function pointer from the lpfc_hba struct.
2834  **/
2835 void
2836 lpfc_stop_port(struct lpfc_hba *phba)
2837 {
2838         phba->lpfc_stop_port(phba);
2839 }
2840
2841 /**
2842  * lpfc_sli4_remove_dflt_fcf - Remove the driver default fcf record from the port.
2843  * @phba: pointer to lpfc hba data structure.
2844  *
2845  * This routine is invoked to remove the driver default fcf record from
2846  * the port.  This routine currently acts on FCF Index 0.
2847  *
2848  **/
2849 void
2850 lpfc_sli_remove_dflt_fcf(struct lpfc_hba *phba)
2851 {
2852         int rc = 0;
2853         LPFC_MBOXQ_t *mboxq;
2854         struct lpfc_mbx_del_fcf_tbl_entry *del_fcf_record;
2855         uint32_t mbox_tmo, req_len;
2856         uint32_t shdr_status, shdr_add_status;
2857
2858         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2859         if (!mboxq) {
2860                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2861                         "2020 Failed to allocate mbox for ADD_FCF cmd\n");
2862                 return;
2863         }
2864
2865         req_len = sizeof(struct lpfc_mbx_del_fcf_tbl_entry) -
2866                   sizeof(struct lpfc_sli4_cfg_mhdr);
2867         rc = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
2868                               LPFC_MBOX_OPCODE_FCOE_DELETE_FCF,
2869                               req_len, LPFC_SLI4_MBX_EMBED);
2870         /*
2871          * In phase 1, there is a single FCF index, 0.  In phase2, the driver
2872          * supports multiple FCF indices.
2873          */
2874         del_fcf_record = &mboxq->u.mqe.un.del_fcf_entry;
2875         bf_set(lpfc_mbx_del_fcf_tbl_count, del_fcf_record, 1);
2876         bf_set(lpfc_mbx_del_fcf_tbl_index, del_fcf_record,
2877                phba->fcf.current_rec.fcf_indx);
2878
2879         if (!phba->sli4_hba.intr_enable)
2880                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2881         else {
2882                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
2883                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
2884         }
2885         /* The IOCTL status is embedded in the mailbox subheader. */
2886         shdr_status = bf_get(lpfc_mbox_hdr_status,
2887                              &del_fcf_record->header.cfg_shdr.response);
2888         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2889                                  &del_fcf_record->header.cfg_shdr.response);
2890         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2891                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2892                                 "2516 DEL FCF of default FCF Index failed "
2893                                 "mbx status x%x, status x%x add_status x%x\n",
2894                                 rc, shdr_status, shdr_add_status);
2895         }
2896         if (rc != MBX_TIMEOUT)
2897                 mempool_free(mboxq, phba->mbox_mem_pool);
2898 }
2899
2900 /**
2901  * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer
2902  * @phba: Pointer to hba for which this call is being executed.
2903  *
2904  * This routine starts the timer waiting for the FCF rediscovery to complete.
2905  **/
2906 void
2907 lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
2908 {
2909         unsigned long fcf_redisc_wait_tmo =
2910                 (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO));
2911         /* Start fcf rediscovery wait period timer */
2912         mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo);
2913         spin_lock_irq(&phba->hbalock);
2914         /* Allow action to new fcf asynchronous event */
2915         phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE);
2916         /* Mark the FCF rediscovery pending state */
2917         phba->fcf.fcf_flag |= FCF_REDISC_PEND;
2918         spin_unlock_irq(&phba->hbalock);
2919 }
2920
2921 /**
2922  * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout
2923  * @ptr: Map to lpfc_hba data structure pointer.
2924  *
2925  * This routine is invoked when waiting for FCF table rediscover has been
2926  * timed out. If new FCF record(s) has (have) been discovered during the
2927  * wait period, a new FCF event shall be added to the FCOE async event
2928  * list, and then worker thread shall be waked up for processing from the
2929  * worker thread context.
2930  **/
2931 void
2932 lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
2933 {
2934         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
2935
2936         /* Don't send FCF rediscovery event if timer cancelled */
2937         spin_lock_irq(&phba->hbalock);
2938         if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) {
2939                 spin_unlock_irq(&phba->hbalock);
2940                 return;
2941         }
2942         /* Clear FCF rediscovery timer pending flag */
2943         phba->fcf.fcf_flag &= ~FCF_REDISC_PEND;
2944         /* FCF rediscovery event to worker thread */
2945         phba->fcf.fcf_flag |= FCF_REDISC_EVT;
2946         spin_unlock_irq(&phba->hbalock);
2947         lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
2948                         "2776 FCF rediscover wait timer expired, post "
2949                         "a worker thread event for FCF table scan\n");
2950         /* wake up worker thread */
2951         lpfc_worker_wake_up(phba);
2952 }
2953
2954 /**
2955  * lpfc_sli4_fw_cfg_check - Read the firmware config and verify FCoE support
2956  * @phba: pointer to lpfc hba data structure.
2957  *
2958  * This function uses the QUERY_FW_CFG mailbox command to determine if the
2959  * firmware loaded supports FCoE. A return of zero indicates that the mailbox
2960  * was successful and the firmware supports FCoE. Any other return indicates
2961  * a error. It is assumed that this function will be called before interrupts
2962  * are enabled.
2963  **/
2964 static int
2965 lpfc_sli4_fw_cfg_check(struct lpfc_hba *phba)
2966 {
2967         int rc = 0;
2968         LPFC_MBOXQ_t *mboxq;
2969         struct lpfc_mbx_query_fw_cfg *query_fw_cfg;
2970         uint32_t length;
2971         uint32_t shdr_status, shdr_add_status;
2972
2973         mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2974         if (!mboxq) {
2975                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2976                                 "2621 Failed to allocate mbox for "
2977                                 "query firmware config cmd\n");
2978                 return -ENOMEM;
2979         }
2980         query_fw_cfg = &mboxq->u.mqe.un.query_fw_cfg;
2981         length = (sizeof(struct lpfc_mbx_query_fw_cfg) -
2982                   sizeof(struct lpfc_sli4_cfg_mhdr));
2983         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
2984                          LPFC_MBOX_OPCODE_QUERY_FW_CFG,
2985                          length, LPFC_SLI4_MBX_EMBED);
2986         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
2987         /* The IOCTL status is embedded in the mailbox subheader. */
2988         shdr_status = bf_get(lpfc_mbox_hdr_status,
2989                              &query_fw_cfg->header.cfg_shdr.response);
2990         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
2991                                  &query_fw_cfg->header.cfg_shdr.response);
2992         if (shdr_status || shdr_add_status || rc != MBX_SUCCESS) {
2993                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2994                                 "2622 Query Firmware Config failed "
2995                                 "mbx status x%x, status x%x add_status x%x\n",
2996                                 rc, shdr_status, shdr_add_status);
2997                 return -EINVAL;
2998         }
2999         if (!bf_get(lpfc_function_mode_fcoe_i, query_fw_cfg)) {
3000                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3001                                 "2623 FCoE Function not supported by firmware. "
3002                                 "Function mode = %08x\n",
3003                                 query_fw_cfg->function_mode);
3004                 return -EINVAL;
3005         }
3006         if (rc != MBX_TIMEOUT)
3007                 mempool_free(mboxq, phba->mbox_mem_pool);
3008         return 0;
3009 }
3010
3011 /**
3012  * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code
3013  * @phba: pointer to lpfc hba data structure.
3014  * @acqe_link: pointer to the async link completion queue entry.
3015  *
3016  * This routine is to parse the SLI4 link-attention link fault code and
3017  * translate it into the base driver's read link attention mailbox command
3018  * status.
3019  *
3020  * Return: Link-attention status in terms of base driver's coding.
3021  **/
3022 static uint16_t
3023 lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba,
3024                            struct lpfc_acqe_link *acqe_link)
3025 {
3026         uint16_t latt_fault;
3027
3028         switch (bf_get(lpfc_acqe_link_fault, acqe_link)) {
3029         case LPFC_ASYNC_LINK_FAULT_NONE:
3030         case LPFC_ASYNC_LINK_FAULT_LOCAL:
3031         case LPFC_ASYNC_LINK_FAULT_REMOTE:
3032                 latt_fault = 0;
3033                 break;
3034         default:
3035                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3036                                 "0398 Invalid link fault code: x%x\n",
3037                                 bf_get(lpfc_acqe_link_fault, acqe_link));
3038                 latt_fault = MBXERR_ERROR;
3039                 break;
3040         }
3041         return latt_fault;
3042 }
3043
3044 /**
3045  * lpfc_sli4_parse_latt_type - Parse sli4 link attention type
3046  * @phba: pointer to lpfc hba data structure.
3047  * @acqe_link: pointer to the async link completion queue entry.
3048  *
3049  * This routine is to parse the SLI4 link attention type and translate it
3050  * into the base driver's link attention type coding.
3051  *
3052  * Return: Link attention type in terms of base driver's coding.
3053  **/
3054 static uint8_t
3055 lpfc_sli4_parse_latt_type(struct lpfc_hba *phba,
3056                           struct lpfc_acqe_link *acqe_link)
3057 {
3058         uint8_t att_type;
3059
3060         switch (bf_get(lpfc_acqe_link_status, acqe_link)) {
3061         case LPFC_ASYNC_LINK_STATUS_DOWN:
3062         case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN:
3063                 att_type = AT_LINK_DOWN;
3064                 break;
3065         case LPFC_ASYNC_LINK_STATUS_UP:
3066                 /* Ignore physical link up events - wait for logical link up */
3067                 att_type = AT_RESERVED;
3068                 break;
3069         case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP:
3070                 att_type = AT_LINK_UP;
3071                 break;
3072         default:
3073                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3074                                 "0399 Invalid link attention type: x%x\n",
3075                                 bf_get(lpfc_acqe_link_status, acqe_link));
3076                 att_type = AT_RESERVED;
3077                 break;
3078         }
3079         return att_type;
3080 }
3081
3082 /**
3083  * lpfc_sli4_parse_latt_link_speed - Parse sli4 link-attention link speed
3084  * @phba: pointer to lpfc hba data structure.
3085  * @acqe_link: pointer to the async link completion queue entry.
3086  *
3087  * This routine is to parse the SLI4 link-attention link speed and translate
3088  * it into the base driver's link-attention link speed coding.
3089  *
3090  * Return: Link-attention link speed in terms of base driver's coding.
3091  **/
3092 static uint8_t
3093 lpfc_sli4_parse_latt_link_speed(struct lpfc_hba *phba,
3094                                 struct lpfc_acqe_link *acqe_link)
3095 {
3096         uint8_t link_speed;
3097
3098         switch (bf_get(lpfc_acqe_link_speed, acqe_link)) {
3099         case LPFC_ASYNC_LINK_SPEED_ZERO:
3100                 link_speed = LA_UNKNW_LINK;
3101                 break;
3102         case LPFC_ASYNC_LINK_SPEED_10MBPS:
3103                 link_speed = LA_UNKNW_LINK;
3104                 break;
3105         case LPFC_ASYNC_LINK_SPEED_100MBPS:
3106                 link_speed = LA_UNKNW_LINK;
3107                 break;
3108         case LPFC_ASYNC_LINK_SPEED_1GBPS:
3109                 link_speed = LA_1GHZ_LINK;
3110                 break;
3111         case LPFC_ASYNC_LINK_SPEED_10GBPS:
3112                 link_speed = LA_10GHZ_LINK;
3113                 break;
3114         default:
3115                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3116                                 "0483 Invalid link-attention link speed: x%x\n",
3117                                 bf_get(lpfc_acqe_link_speed, acqe_link));
3118                 link_speed = LA_UNKNW_LINK;
3119                 break;
3120         }
3121         return link_speed;
3122 }
3123
3124 /**
3125  * lpfc_sli4_async_link_evt - Process the asynchronous link event
3126  * @phba: pointer to lpfc hba data structure.
3127  * @acqe_link: pointer to the async link completion queue entry.
3128  *
3129  * This routine is to handle the SLI4 asynchronous link event.
3130  **/
3131 static void
3132 lpfc_sli4_async_link_evt(struct lpfc_hba *phba,
3133                          struct lpfc_acqe_link *acqe_link)
3134 {
3135         struct lpfc_dmabuf *mp;
3136         LPFC_MBOXQ_t *pmb;
3137         MAILBOX_t *mb;
3138         READ_LA_VAR *la;
3139         uint8_t att_type;
3140
3141         att_type = lpfc_sli4_parse_latt_type(phba, acqe_link);
3142         if (att_type != AT_LINK_DOWN && att_type != AT_LINK_UP)
3143                 return;
3144         phba->fcoe_eventtag = acqe_link->event_tag;
3145         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3146         if (!pmb) {
3147                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3148                                 "0395 The mboxq allocation failed\n");
3149                 return;
3150         }
3151         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
3152         if (!mp) {
3153                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3154                                 "0396 The lpfc_dmabuf allocation failed\n");
3155                 goto out_free_pmb;
3156         }
3157         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
3158         if (!mp->virt) {
3159                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3160                                 "0397 The mbuf allocation failed\n");
3161                 goto out_free_dmabuf;
3162         }
3163
3164         /* Cleanup any outstanding ELS commands */
3165         lpfc_els_flush_all_cmd(phba);
3166
3167         /* Block ELS IOCBs until we have done process link event */
3168         phba->sli.ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT;
3169
3170         /* Update link event statistics */
3171         phba->sli.slistat.link_event++;
3172
3173         /* Create pseudo lpfc_handle_latt mailbox command from link ACQE */
3174         lpfc_read_la(phba, pmb, mp);
3175         pmb->vport = phba->pport;
3176
3177         /* Parse and translate status field */
3178         mb = &pmb->u.mb;
3179         mb->mbxStatus = lpfc_sli4_parse_latt_fault(phba, acqe_link);
3180
3181         /* Parse and translate link attention fields */
3182         la = (READ_LA_VAR *) &pmb->u.mb.un.varReadLA;
3183         la->eventTag = acqe_link->event_tag;
3184         la->attType = att_type;
3185         la->UlnkSpeed = lpfc_sli4_parse_latt_link_speed(phba, acqe_link);
3186
3187         /* Fake the the following irrelvant fields */
3188         la->topology = TOPOLOGY_PT_PT;
3189         la->granted_AL_PA = 0;
3190         la->il = 0;
3191         la->pb = 0;
3192         la->fa = 0;
3193         la->mm = 0;
3194
3195         /* Keep the link status for extra SLI4 state machine reference */
3196         phba->sli4_hba.link_state.speed =
3197                                 bf_get(lpfc_acqe_link_speed, acqe_link);
3198         phba->sli4_hba.link_state.duplex =
3199                                 bf_get(lpfc_acqe_link_duplex, acqe_link);
3200         phba->sli4_hba.link_state.status =
3201                                 bf_get(lpfc_acqe_link_status, acqe_link);
3202         phba->sli4_hba.link_state.physical =
3203                                 bf_get(lpfc_acqe_link_physical, acqe_link);
3204         phba->sli4_hba.link_state.fault =
3205                                 bf_get(lpfc_acqe_link_fault, acqe_link);
3206         phba->sli4_hba.link_state.logical_speed =
3207                                 bf_get(lpfc_acqe_qos_link_speed, acqe_link);
3208
3209         /* Invoke the lpfc_handle_latt mailbox command callback function */
3210         lpfc_mbx_cmpl_read_la(phba, pmb);
3211
3212         return;
3213
3214 out_free_dmabuf:
3215         kfree(mp);
3216 out_free_pmb:
3217         mempool_free(pmb, phba->mbox_mem_pool);
3218 }
3219
3220 /**
3221  * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport
3222  * @vport: pointer to vport data structure.
3223  *
3224  * This routine is to perform Clear Virtual Link (CVL) on a vport in
3225  * response to a CVL event.
3226  *
3227  * Return the pointer to the ndlp with the vport if successful, otherwise
3228  * return NULL.
3229  **/
3230 static struct lpfc_nodelist *
3231 lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport)
3232 {
3233         struct lpfc_nodelist *ndlp;
3234         struct Scsi_Host *shost;
3235         struct lpfc_hba *phba;
3236
3237         if (!vport)
3238                 return NULL;
3239         ndlp = lpfc_findnode_did(vport, Fabric_DID);
3240         if (!ndlp)
3241                 return NULL;
3242         phba = vport->phba;
3243         if (!phba)
3244                 return NULL;
3245         if (phba->pport->port_state <= LPFC_FLOGI)
3246                 return NULL;
3247         /* If virtual link is not yet instantiated ignore CVL */
3248         if (vport->port_state <= LPFC_FDISC)
3249                 return NULL;
3250         shost = lpfc_shost_from_vport(vport);
3251         if (!shost)
3252                 return NULL;
3253         lpfc_linkdown_port(vport);
3254         lpfc_cleanup_pending_mbox(vport);
3255         spin_lock_irq(shost->host_lock);
3256         vport->fc_flag |= FC_VPORT_CVL_RCVD;
3257         spin_unlock_irq(shost->host_lock);
3258
3259         return ndlp;
3260 }
3261
3262 /**
3263  * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports
3264  * @vport: pointer to lpfc hba data structure.
3265  *
3266  * This routine is to perform Clear Virtual Link (CVL) on all vports in
3267  * response to a FCF dead event.
3268  **/
3269 static void
3270 lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba)
3271 {
3272         struct lpfc_vport **vports;
3273         int i;
3274
3275         vports = lpfc_create_vport_work_array(phba);
3276         if (vports)
3277                 for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++)
3278                         lpfc_sli4_perform_vport_cvl(vports[i]);
3279         lpfc_destroy_vport_work_array(phba, vports);
3280 }
3281
3282 /**
3283  * lpfc_sli4_async_fcoe_evt - Process the asynchronous fcoe event
3284  * @phba: pointer to lpfc hba data structure.
3285  * @acqe_link: pointer to the async fcoe completion queue entry.
3286  *
3287  * This routine is to handle the SLI4 asynchronous fcoe event.
3288  **/
3289 static void
3290 lpfc_sli4_async_fcoe_evt(struct lpfc_hba *phba,
3291                          struct lpfc_acqe_fcoe *acqe_fcoe)
3292 {
3293         uint8_t event_type = bf_get(lpfc_acqe_fcoe_event_type, acqe_fcoe);
3294         int rc;
3295         struct lpfc_vport *vport;
3296         struct lpfc_nodelist *ndlp;
3297         struct Scsi_Host  *shost;
3298         int active_vlink_present;
3299         struct lpfc_vport **vports;
3300         int i;
3301
3302         phba->fc_eventTag = acqe_fcoe->event_tag;
3303         phba->fcoe_eventtag = acqe_fcoe->event_tag;
3304         switch (event_type) {
3305         case LPFC_FCOE_EVENT_TYPE_NEW_FCF:
3306         case LPFC_FCOE_EVENT_TYPE_FCF_PARAM_MOD:
3307                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3308                         "2546 New FCF found/FCF parameter modified event: "
3309                         "evt_tag:x%x, fcf_index:x%x\n",
3310                         acqe_fcoe->event_tag, acqe_fcoe->index);
3311
3312                 spin_lock_irq(&phba->hbalock);
3313                 if ((phba->fcf.fcf_flag & FCF_SCAN_DONE) ||
3314                     (phba->hba_flag & FCF_DISC_INPROGRESS)) {
3315                         /*
3316                          * If the current FCF is in discovered state or
3317                          * FCF discovery is in progress, do nothing.
3318                          */
3319                         spin_unlock_irq(&phba->hbalock);
3320                         break;
3321                 }
3322
3323                 if (phba->fcf.fcf_flag & FCF_REDISC_EVT) {
3324                         /*
3325                          * If fast FCF failover rescan event is pending,
3326                          * do nothing.
3327                          */
3328                         spin_unlock_irq(&phba->hbalock);
3329                         break;
3330                 }
3331                 spin_unlock_irq(&phba->hbalock);
3332
3333                 if ((phba->fcf.fcf_flag & FCF_DISCOVERY) &&
3334                     !(phba->fcf.fcf_flag & FCF_REDISC_FOV)) {
3335                         /*
3336                          * During period of FCF discovery, read the FCF
3337                          * table record indexed by the event to update
3338                          * FCF round robin failover eligible FCF bmask.
3339                          */
3340                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3341                                         LOG_DISCOVERY,
3342                                         "2779 Read new FCF record with "
3343                                         "fcf_index:x%x for updating FCF "
3344                                         "round robin failover bmask\n",
3345                                         acqe_fcoe->index);
3346                         rc = lpfc_sli4_read_fcf_rec(phba, acqe_fcoe->index);
3347                 }
3348
3349                 /* Otherwise, scan the entire FCF table and re-discover SAN */
3350                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3351                                 "2770 Start FCF table scan due to new FCF "
3352                                 "event: evt_tag:x%x, fcf_index:x%x\n",
3353                                 acqe_fcoe->event_tag, acqe_fcoe->index);
3354                 rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba,
3355                                                      LPFC_FCOE_FCF_GET_FIRST);
3356                 if (rc)
3357                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3358                                         "2547 Issue FCF scan read FCF mailbox "
3359                                         "command failed 0x%x\n", rc);
3360                 break;
3361
3362         case LPFC_FCOE_EVENT_TYPE_FCF_TABLE_FULL:
3363                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3364                         "2548 FCF Table full count 0x%x tag 0x%x\n",
3365                         bf_get(lpfc_acqe_fcoe_fcf_count, acqe_fcoe),
3366                         acqe_fcoe->event_tag);
3367                 break;
3368
3369         case LPFC_FCOE_EVENT_TYPE_FCF_DEAD:
3370                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3371                         "2549 FCF disconnected from network index 0x%x"
3372                         " tag 0x%x\n", acqe_fcoe->index,
3373                         acqe_fcoe->event_tag);
3374                 /* If the event is not for currently used fcf do nothing */
3375                 if (phba->fcf.current_rec.fcf_indx != acqe_fcoe->index)
3376                         break;
3377                 /* We request port to rediscover the entire FCF table for
3378                  * a fast recovery from case that the current FCF record
3379                  * is no longer valid if we are not in the middle of FCF
3380                  * failover process already.
3381                  */
3382                 spin_lock_irq(&phba->hbalock);
3383                 if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3384                         spin_unlock_irq(&phba->hbalock);
3385                         /* Update FLOGI FCF failover eligible FCF bmask */
3386                         lpfc_sli4_fcf_rr_index_clear(phba, acqe_fcoe->index);
3387                         break;
3388                 }
3389                 /* Mark the fast failover process in progress */
3390                 phba->fcf.fcf_flag |= FCF_DEAD_DISC;
3391                 spin_unlock_irq(&phba->hbalock);
3392                 lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3393                                 "2771 Start FCF fast failover process due to "
3394                                 "FCF DEAD event: evt_tag:x%x, fcf_index:x%x "
3395                                 "\n", acqe_fcoe->event_tag, acqe_fcoe->index);
3396                 rc = lpfc_sli4_redisc_fcf_table(phba);
3397                 if (rc) {
3398                         lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3399                                         LOG_DISCOVERY,
3400                                         "2772 Issue FCF rediscover mabilbox "
3401                                         "command failed, fail through to FCF "
3402                                         "dead event\n");
3403                         spin_lock_irq(&phba->hbalock);
3404                         phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
3405                         spin_unlock_irq(&phba->hbalock);
3406                         /*
3407                          * Last resort will fail over by treating this
3408                          * as a link down to FCF registration.
3409                          */
3410                         lpfc_sli4_fcf_dead_failthrough(phba);
3411                 } else
3412                         /* Handling fast FCF failover to a DEAD FCF event
3413                          * is considered equalivant to receiving CVL to all
3414                          * vports.
3415                          */
3416                         lpfc_sli4_perform_all_vport_cvl(phba);
3417                 break;
3418         case LPFC_FCOE_EVENT_TYPE_CVL:
3419                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3420                         "2718 Clear Virtual Link Received for VPI 0x%x"
3421                         " tag 0x%x\n", acqe_fcoe->index, acqe_fcoe->event_tag);
3422                 vport = lpfc_find_vport_by_vpid(phba,
3423                                 acqe_fcoe->index - phba->vpi_base);
3424                 ndlp = lpfc_sli4_perform_vport_cvl(vport);
3425                 if (!ndlp)
3426                         break;
3427                 active_vlink_present = 0;
3428
3429                 vports = lpfc_create_vport_work_array(phba);
3430                 if (vports) {
3431                         for (i = 0; i <= phba->max_vports && vports[i] != NULL;
3432                                         i++) {
3433                                 if ((!(vports[i]->fc_flag &
3434                                         FC_VPORT_CVL_RCVD)) &&
3435                                         (vports[i]->port_state > LPFC_FDISC)) {
3436                                         active_vlink_present = 1;
3437                                         break;
3438                                 }
3439                         }
3440                         lpfc_destroy_vport_work_array(phba, vports);
3441                 }
3442
3443                 if (active_vlink_present) {
3444                         /*
3445                          * If there are other active VLinks present,
3446                          * re-instantiate the Vlink using FDISC.
3447                          */
3448                         mod_timer(&ndlp->nlp_delayfunc, jiffies + HZ);
3449                         shost = lpfc_shost_from_vport(vport);
3450                         spin_lock_irq(shost->host_lock);
3451                         ndlp->nlp_flag |= NLP_DELAY_TMO;
3452                         spin_unlock_irq(shost->host_lock);
3453                         ndlp->nlp_last_elscmd = ELS_CMD_FDISC;
3454                         vport->port_state = LPFC_FDISC;
3455                 } else {
3456                         /*
3457                          * Otherwise, we request port to rediscover
3458                          * the entire FCF table for a fast recovery
3459                          * from possible case that the current FCF
3460                          * is no longer valid if we are not already
3461                          * in the FCF failover process.
3462                          */
3463                         spin_lock_irq(&phba->hbalock);
3464                         if (phba->fcf.fcf_flag & FCF_DISCOVERY) {
3465                                 spin_unlock_irq(&phba->hbalock);
3466                                 break;
3467                         }
3468                         /* Mark the fast failover process in progress */
3469                         phba->fcf.fcf_flag |= FCF_ACVL_DISC;
3470                         spin_unlock_irq(&phba->hbalock);
3471                         lpfc_printf_log(phba, KERN_INFO, LOG_FIP |
3472                                         LOG_DISCOVERY,
3473                                         "2773 Start FCF fast failover due "
3474                                         "to CVL event: evt_tag:x%x\n",
3475                                         acqe_fcoe->event_tag);
3476                         rc = lpfc_sli4_redisc_fcf_table(phba);
3477                         if (rc) {
3478                                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP |
3479                                                 LOG_DISCOVERY,
3480                                                 "2774 Issue FCF rediscover "
3481                                                 "mabilbox command failed, "
3482                                                 "through to CVL event\n");
3483                                 spin_lock_irq(&phba->hbalock);
3484                                 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
3485                                 spin_unlock_irq(&phba->hbalock);
3486                                 /*
3487                                  * Last resort will be re-try on the
3488                                  * the current registered FCF entry.
3489                                  */
3490                                 lpfc_retry_pport_discovery(phba);
3491                         }
3492                 }
3493                 break;
3494         default:
3495                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3496                         "0288 Unknown FCoE event type 0x%x event tag "
3497                         "0x%x\n", event_type, acqe_fcoe->event_tag);
3498                 break;
3499         }
3500 }
3501
3502 /**
3503  * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event
3504  * @phba: pointer to lpfc hba data structure.
3505  * @acqe_link: pointer to the async dcbx completion queue entry.
3506  *
3507  * This routine is to handle the SLI4 asynchronous dcbx event.
3508  **/
3509 static void
3510 lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba,
3511                          struct lpfc_acqe_dcbx *acqe_dcbx)
3512 {
3513         phba->fc_eventTag = acqe_dcbx->event_tag;
3514         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3515                         "0290 The SLI4 DCBX asynchronous event is not "
3516                         "handled yet\n");
3517 }
3518
3519 /**
3520  * lpfc_sli4_async_event_proc - Process all the pending asynchronous event
3521  * @phba: pointer to lpfc hba data structure.
3522  *
3523  * This routine is invoked by the worker thread to process all the pending
3524  * SLI4 asynchronous events.
3525  **/
3526 void lpfc_sli4_async_event_proc(struct lpfc_hba *phba)
3527 {
3528         struct lpfc_cq_event *cq_event;
3529
3530         /* First, declare the async event has been handled */
3531         spin_lock_irq(&phba->hbalock);
3532         phba->hba_flag &= ~ASYNC_EVENT;
3533         spin_unlock_irq(&phba->hbalock);
3534         /* Now, handle all the async events */
3535         while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) {
3536                 /* Get the first event from the head of the event queue */
3537                 spin_lock_irq(&phba->hbalock);
3538                 list_remove_head(&phba->sli4_hba.sp_asynce_work_queue,
3539                                  cq_event, struct lpfc_cq_event, list);
3540                 spin_unlock_irq(&phba->hbalock);
3541                 /* Process the asynchronous event */
3542                 switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) {
3543                 case LPFC_TRAILER_CODE_LINK:
3544                         lpfc_sli4_async_link_evt(phba,
3545                                                  &cq_event->cqe.acqe_link);
3546                         break;
3547                 case LPFC_TRAILER_CODE_FCOE:
3548                         lpfc_sli4_async_fcoe_evt(phba,
3549                                                  &cq_event->cqe.acqe_fcoe);
3550                         break;
3551                 case LPFC_TRAILER_CODE_DCBX:
3552                         lpfc_sli4_async_dcbx_evt(phba,
3553                                                  &cq_event->cqe.acqe_dcbx);
3554                         break;
3555                 default:
3556                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3557                                         "1804 Invalid asynchrous event code: "
3558                                         "x%x\n", bf_get(lpfc_trailer_code,
3559                                         &cq_event->cqe.mcqe_cmpl));
3560                         break;
3561                 }
3562                 /* Free the completion event processed to the free pool */
3563                 lpfc_sli4_cq_event_release(phba, cq_event);
3564         }
3565 }
3566
3567 /**
3568  * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event
3569  * @phba: pointer to lpfc hba data structure.
3570  *
3571  * This routine is invoked by the worker thread to process FCF table
3572  * rediscovery pending completion event.
3573  **/
3574 void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba)
3575 {
3576         int rc;
3577
3578         spin_lock_irq(&phba->hbalock);
3579         /* Clear FCF rediscovery timeout event */
3580         phba->fcf.fcf_flag &= ~FCF_REDISC_EVT;
3581         /* Clear driver fast failover FCF record flag */
3582         phba->fcf.failover_rec.flag = 0;
3583         /* Set state for FCF fast failover */
3584         phba->fcf.fcf_flag |= FCF_REDISC_FOV;
3585         spin_unlock_irq(&phba->hbalock);
3586
3587         /* Scan FCF table from the first entry to re-discover SAN */
3588         lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY,
3589                         "2777 Start FCF table scan after FCF "
3590                         "rediscovery quiescent period over\n");
3591         rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST);
3592         if (rc)
3593                 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY,
3594                                 "2747 Issue FCF scan read FCF mailbox "
3595                                 "command failed 0x%x\n", rc);
3596 }
3597
3598 /**
3599  * lpfc_api_table_setup - Set up per hba pci-device group func api jump table
3600  * @phba: pointer to lpfc hba data structure.
3601  * @dev_grp: The HBA PCI-Device group number.
3602  *
3603  * This routine is invoked to set up the per HBA PCI-Device group function
3604  * API jump table entries.
3605  *
3606  * Return: 0 if success, otherwise -ENODEV
3607  **/
3608 int
3609 lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
3610 {
3611         int rc;
3612
3613         /* Set up lpfc PCI-device group */
3614         phba->pci_dev_grp = dev_grp;
3615
3616         /* The LPFC_PCI_DEV_OC uses SLI4 */
3617         if (dev_grp == LPFC_PCI_DEV_OC)
3618                 phba->sli_rev = LPFC_SLI_REV4;
3619
3620         /* Set up device INIT API function jump table */
3621         rc = lpfc_init_api_table_setup(phba, dev_grp);
3622         if (rc)
3623                 return -ENODEV;
3624         /* Set up SCSI API function jump table */
3625         rc = lpfc_scsi_api_table_setup(phba, dev_grp);
3626         if (rc)
3627                 return -ENODEV;
3628         /* Set up SLI API function jump table */
3629         rc = lpfc_sli_api_table_setup(phba, dev_grp);
3630         if (rc)
3631                 return -ENODEV;
3632         /* Set up MBOX API function jump table */
3633         rc = lpfc_mbox_api_table_setup(phba, dev_grp);
3634         if (rc)
3635                 return -ENODEV;
3636
3637         return 0;
3638 }
3639
3640 /**
3641  * lpfc_log_intr_mode - Log the active interrupt mode
3642  * @phba: pointer to lpfc hba data structure.
3643  * @intr_mode: active interrupt mode adopted.
3644  *
3645  * This routine it invoked to log the currently used active interrupt mode
3646  * to the device.
3647  **/
3648 static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode)
3649 {
3650         switch (intr_mode) {
3651         case 0:
3652                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3653                                 "0470 Enable INTx interrupt mode.\n");
3654                 break;
3655         case 1:
3656                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3657                                 "0481 Enabled MSI interrupt mode.\n");
3658                 break;
3659         case 2:
3660                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3661                                 "0480 Enabled MSI-X interrupt mode.\n");
3662                 break;
3663         default:
3664                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3665                                 "0482 Illegal interrupt mode.\n");
3666                 break;
3667         }
3668         return;
3669 }
3670
3671 /**
3672  * lpfc_enable_pci_dev - Enable a generic PCI device.
3673  * @phba: pointer to lpfc hba data structure.
3674  *
3675  * This routine is invoked to enable the PCI device that is common to all
3676  * PCI devices.
3677  *
3678  * Return codes
3679  *      0 - successful
3680  *      other values - error
3681  **/
3682 static int
3683 lpfc_enable_pci_dev(struct lpfc_hba *phba)
3684 {
3685         struct pci_dev *pdev;
3686         int bars;
3687
3688         /* Obtain PCI device reference */
3689         if (!phba->pcidev)
3690                 goto out_error;
3691         else
3692                 pdev = phba->pcidev;
3693         /* Select PCI BARs */
3694         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3695         /* Enable PCI device */
3696         if (pci_enable_device_mem(pdev))
3697                 goto out_error;
3698         /* Request PCI resource for the device */
3699         if (pci_request_selected_regions(pdev, bars, LPFC_DRIVER_NAME))
3700                 goto out_disable_device;
3701         /* Set up device as PCI master and save state for EEH */
3702         pci_set_master(pdev);
3703         pci_try_set_mwi(pdev);
3704         pci_save_state(pdev);
3705
3706         return 0;
3707
3708 out_disable_device:
3709         pci_disable_device(pdev);
3710 out_error:
3711         return -ENODEV;
3712 }
3713
3714 /**
3715  * lpfc_disable_pci_dev - Disable a generic PCI device.
3716  * @phba: pointer to lpfc hba data structure.
3717  *
3718  * This routine is invoked to disable the PCI device that is common to all
3719  * PCI devices.
3720  **/
3721 static void
3722 lpfc_disable_pci_dev(struct lpfc_hba *phba)
3723 {
3724         struct pci_dev *pdev;
3725         int bars;
3726
3727         /* Obtain PCI device reference */
3728         if (!phba->pcidev)
3729                 return;
3730         else
3731                 pdev = phba->pcidev;
3732         /* Select PCI BARs */
3733         bars = pci_select_bars(pdev, IORESOURCE_MEM);
3734         /* Release PCI resource and disable PCI device */
3735         pci_release_selected_regions(pdev, bars);
3736         pci_disable_device(pdev);
3737         /* Null out PCI private reference to driver */
3738         pci_set_drvdata(pdev, NULL);
3739
3740         return;
3741 }
3742
3743 /**
3744  * lpfc_reset_hba - Reset a hba
3745  * @phba: pointer to lpfc hba data structure.
3746  *
3747  * This routine is invoked to reset a hba device. It brings the HBA
3748  * offline, performs a board restart, and then brings the board back
3749  * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up
3750  * on outstanding mailbox commands.
3751  **/
3752 void
3753 lpfc_reset_hba(struct lpfc_hba *phba)
3754 {
3755         /* If resets are disabled then set error state and return. */
3756         if (!phba->cfg_enable_hba_reset) {
3757                 phba->link_state = LPFC_HBA_ERROR;
3758                 return;
3759         }
3760         lpfc_offline_prep(phba);
3761         lpfc_offline(phba);
3762         lpfc_sli_brdrestart(phba);
3763         lpfc_online(phba);
3764         lpfc_unblock_mgmt_io(phba);
3765 }
3766
3767 /**
3768  * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev.
3769  * @phba: pointer to lpfc hba data structure.
3770  *
3771  * This routine is invoked to set up the driver internal resources specific to
3772  * support the SLI-3 HBA device it attached to.
3773  *
3774  * Return codes
3775  *      0 - successful
3776  *      other values - error
3777  **/
3778 static int
3779 lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
3780 {
3781         struct lpfc_sli *psli;
3782
3783         /*
3784          * Initialize timers used by driver
3785          */
3786
3787         /* Heartbeat timer */
3788         init_timer(&phba->hb_tmofunc);
3789         phba->hb_tmofunc.function = lpfc_hb_timeout;
3790         phba->hb_tmofunc.data = (unsigned long)phba;
3791
3792         psli = &phba->sli;
3793         /* MBOX heartbeat timer */
3794         init_timer(&psli->mbox_tmo);
3795         psli->mbox_tmo.function = lpfc_mbox_timeout;
3796         psli->mbox_tmo.data = (unsigned long) phba;
3797         /* FCP polling mode timer */
3798         init_timer(&phba->fcp_poll_timer);
3799         phba->fcp_poll_timer.function = lpfc_poll_timeout;
3800         phba->fcp_poll_timer.data = (unsigned long) phba;
3801         /* Fabric block timer */
3802         init_timer(&phba->fabric_block_timer);
3803         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3804         phba->fabric_block_timer.data = (unsigned long) phba;
3805         /* EA polling mode timer */
3806         init_timer(&phba->eratt_poll);
3807         phba->eratt_poll.function = lpfc_poll_eratt;
3808         phba->eratt_poll.data = (unsigned long) phba;
3809
3810         /* Host attention work mask setup */
3811         phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
3812         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
3813
3814         /* Get all the module params for configuring this host */
3815         lpfc_get_cfgparam(phba);
3816         /*
3817          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3818          * used to create the sg_dma_buf_pool must be dynamically calculated.
3819          * 2 segments are added since the IOCB needs a command and response bde.
3820          */
3821         phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) +
3822                 sizeof(struct fcp_rsp) +
3823                         ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
3824
3825         if (phba->cfg_enable_bg) {
3826                 phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT;
3827                 phba->cfg_sg_dma_buf_size +=
3828                         phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64);
3829         }
3830
3831         /* Also reinitialize the host templates with new values. */
3832         lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3833         lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt;
3834
3835         phba->max_vpi = LPFC_MAX_VPI;
3836         /* This will be set to correct value after config_port mbox */
3837         phba->max_vports = 0;
3838
3839         /*
3840          * Initialize the SLI Layer to run with lpfc HBAs.
3841          */
3842         lpfc_sli_setup(phba);
3843         lpfc_sli_queue_setup(phba);
3844
3845         /* Allocate device driver memory */
3846         if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ))
3847                 return -ENOMEM;
3848
3849         return 0;
3850 }
3851
3852 /**
3853  * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev
3854  * @phba: pointer to lpfc hba data structure.
3855  *
3856  * This routine is invoked to unset the driver internal resources set up
3857  * specific for supporting the SLI-3 HBA device it attached to.
3858  **/
3859 static void
3860 lpfc_sli_driver_resource_unset(struct lpfc_hba *phba)
3861 {
3862         /* Free device driver memory allocated */
3863         lpfc_mem_free_all(phba);
3864
3865         return;
3866 }
3867
3868 /**
3869  * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev
3870  * @phba: pointer to lpfc hba data structure.
3871  *
3872  * This routine is invoked to set up the driver internal resources specific to
3873  * support the SLI-4 HBA device it attached to.
3874  *
3875  * Return codes
3876  *      0 - successful
3877  *      other values - error
3878  **/
3879 static int
3880 lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
3881 {
3882         struct lpfc_sli *psli;
3883         LPFC_MBOXQ_t *mboxq;
3884         int rc, i, hbq_count, buf_size, dma_buf_size, max_buf_size;
3885         uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
3886         struct lpfc_mqe *mqe;
3887         int longs;
3888
3889         /* Before proceed, wait for POST done and device ready */
3890         rc = lpfc_sli4_post_status_check(phba);
3891         if (rc)
3892                 return -ENODEV;
3893
3894         /*
3895          * Initialize timers used by driver
3896          */
3897
3898         /* Heartbeat timer */
3899         init_timer(&phba->hb_tmofunc);
3900         phba->hb_tmofunc.function = lpfc_hb_timeout;
3901         phba->hb_tmofunc.data = (unsigned long)phba;
3902
3903         psli = &phba->sli;
3904         /* MBOX heartbeat timer */
3905         init_timer(&psli->mbox_tmo);
3906         psli->mbox_tmo.function = lpfc_mbox_timeout;
3907         psli->mbox_tmo.data = (unsigned long) phba;
3908         /* Fabric block timer */
3909         init_timer(&phba->fabric_block_timer);
3910         phba->fabric_block_timer.function = lpfc_fabric_block_timeout;
3911         phba->fabric_block_timer.data = (unsigned long) phba;
3912         /* EA polling mode timer */
3913         init_timer(&phba->eratt_poll);
3914         phba->eratt_poll.function = lpfc_poll_eratt;
3915         phba->eratt_poll.data = (unsigned long) phba;
3916         /* FCF rediscover timer */
3917         init_timer(&phba->fcf.redisc_wait);
3918         phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo;
3919         phba->fcf.redisc_wait.data = (unsigned long)phba;
3920
3921         /*
3922          * We need to do a READ_CONFIG mailbox command here before
3923          * calling lpfc_get_cfgparam. For VFs this will report the
3924          * MAX_XRI, MAX_VPI, MAX_RPI, MAX_IOCB, and MAX_VFI settings.
3925          * All of the resources allocated
3926          * for this Port are tied to these values.
3927          */
3928         /* Get all the module params for configuring this host */
3929         lpfc_get_cfgparam(phba);
3930         phba->max_vpi = LPFC_MAX_VPI;
3931         /* This will be set to correct value after the read_config mbox */
3932         phba->max_vports = 0;
3933
3934         /* Program the default value of vlan_id and fc_map */
3935         phba->valid_vlan = 0;
3936         phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
3937         phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
3938         phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
3939
3940         /*
3941          * Since the sg_tablesize is module parameter, the sg_dma_buf_size
3942          * used to create the sg_dma_buf_pool must be dynamically calculated.
3943          * 2 segments are added since the IOCB needs a command and response bde.
3944          * To insure that the scsi sgl does not cross a 4k page boundary only
3945          * sgl sizes of must be a power of 2.
3946          */
3947         buf_size = (sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) +
3948                     ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct sli4_sge)));
3949         /* Feature Level 1 hardware is limited to 2 pages */
3950         if ((bf_get(lpfc_sli_intf_featurelevel1, &phba->sli4_hba.sli_intf) ==
3951              LPFC_SLI_INTF_FEATURELEVEL1_1))
3952                 max_buf_size = LPFC_SLI4_FL1_MAX_BUF_SIZE;
3953         else
3954                 max_buf_size = LPFC_SLI4_MAX_BUF_SIZE;
3955         for (dma_buf_size = LPFC_SLI4_MIN_BUF_SIZE;
3956              dma_buf_size < max_buf_size && buf_size > dma_buf_size;
3957              dma_buf_size = dma_buf_size << 1)
3958                 ;
3959         if (dma_buf_size == max_buf_size)
3960                 phba->cfg_sg_seg_cnt = (dma_buf_size -
3961                         sizeof(struct fcp_cmnd) - sizeof(struct fcp_rsp) -
3962                         (2 * sizeof(struct sli4_sge))) /
3963                                 sizeof(struct sli4_sge);
3964         phba->cfg_sg_dma_buf_size = dma_buf_size;
3965
3966         /* Initialize buffer queue management fields */
3967         hbq_count = lpfc_sli_hbq_count();
3968         for (i = 0; i < hbq_count; ++i)
3969                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
3970         INIT_LIST_HEAD(&phba->rb_pend_list);
3971         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc;
3972         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free;
3973
3974         /*
3975          * Initialize the SLI Layer to run with lpfc SLI4 HBAs.
3976          */
3977         /* Initialize the Abort scsi buffer list used by driver */
3978         spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock);
3979         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list);
3980         /* This abort list used by worker thread */
3981         spin_lock_init(&phba->sli4_hba.abts_sgl_list_lock);
3982
3983         /*
3984          * Initialize dirver internal slow-path work queues
3985          */
3986
3987         /* Driver internel slow-path CQ Event pool */
3988         INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool);
3989         /* Response IOCB work queue list */
3990         INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event);
3991         /* Asynchronous event CQ Event work queue list */
3992         INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue);
3993         /* Fast-path XRI aborted CQ Event work queue list */
3994         INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
3995         /* Slow-path XRI aborted CQ Event work queue list */
3996         INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue);
3997         /* Receive queue CQ Event work queue list */
3998         INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue);
3999
4000         /* Initialize the driver internal SLI layer lists. */
4001         lpfc_sli_setup(phba);
4002         lpfc_sli_queue_setup(phba);
4003
4004         /* Allocate device driver memory */
4005         rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ);
4006         if (rc)
4007                 return -ENOMEM;
4008
4009         /* Create the bootstrap mailbox command */
4010         rc = lpfc_create_bootstrap_mbox(phba);
4011         if (unlikely(rc))
4012                 goto out_free_mem;
4013
4014         /* Set up the host's endian order with the device. */
4015         rc = lpfc_setup_endian_order(phba);
4016         if (unlikely(rc))
4017                 goto out_free_bsmbx;
4018
4019         rc = lpfc_sli4_fw_cfg_check(phba);
4020         if (unlikely(rc))
4021                 goto out_free_bsmbx;
4022
4023         /* Set up the hba's configuration parameters. */
4024         rc = lpfc_sli4_read_config(phba);
4025         if (unlikely(rc))
4026                 goto out_free_bsmbx;
4027
4028         /* Perform a function reset */
4029         rc = lpfc_pci_function_reset(phba);
4030         if (unlikely(rc))
4031                 goto out_free_bsmbx;
4032
4033         /* Create all the SLI4 queues */
4034         rc = lpfc_sli4_queue_create(phba);
4035         if (rc)
4036                 goto out_free_bsmbx;
4037
4038         /* Create driver internal CQE event pool */
4039         rc = lpfc_sli4_cq_event_pool_create(phba);
4040         if (rc)
4041                 goto out_destroy_queue;
4042
4043         /* Initialize and populate the iocb list per host */
4044         rc = lpfc_init_sgl_list(phba);
4045         if (rc) {
4046                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4047                                 "1400 Failed to initialize sgl list.\n");
4048                 goto out_destroy_cq_event_pool;
4049         }
4050         rc = lpfc_init_active_sgl_array(phba);
4051         if (rc) {
4052                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4053                                 "1430 Failed to initialize sgl list.\n");
4054                 goto out_free_sgl_list;
4055         }
4056
4057         rc = lpfc_sli4_init_rpi_hdrs(phba);
4058         if (rc) {
4059                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4060                                 "1432 Failed to initialize rpi headers.\n");
4061                 goto out_free_active_sgl;
4062         }
4063
4064         /* Allocate eligible FCF bmask memory for FCF round robin failover */
4065         longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG;
4066         phba->fcf.fcf_rr_bmask = kzalloc(longs * sizeof(unsigned long),
4067                                          GFP_KERNEL);
4068         if (!phba->fcf.fcf_rr_bmask) {
4069                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4070                                 "2759 Failed allocate memory for FCF round "
4071                                 "robin failover bmask\n");
4072                 goto out_remove_rpi_hdrs;
4073         }
4074
4075         phba->sli4_hba.fcp_eq_hdl = kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
4076                                     phba->cfg_fcp_eq_count), GFP_KERNEL);
4077         if (!phba->sli4_hba.fcp_eq_hdl) {
4078                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4079                                 "2572 Failed allocate memory for fast-path "
4080                                 "per-EQ handle array\n");
4081                 goto out_free_fcf_rr_bmask;
4082         }
4083
4084         phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
4085                                       phba->sli4_hba.cfg_eqn), GFP_KERNEL);
4086         if (!phba->sli4_hba.msix_entries) {
4087                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4088                                 "2573 Failed allocate memory for msi-x "
4089                                 "interrupt vector entries\n");
4090                 goto out_free_fcp_eq_hdl;
4091         }
4092
4093         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool,
4094                                                        GFP_KERNEL);
4095         if (!mboxq) {
4096                 rc = -ENOMEM;
4097                 goto out_free_fcp_eq_hdl;
4098         }
4099
4100         /* Get the Supported Pages. It is always available. */
4101         lpfc_supported_pages(mboxq);
4102         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4103         if (unlikely(rc)) {
4104                 rc = -EIO;
4105                 mempool_free(mboxq, phba->mbox_mem_pool);
4106                 goto out_free_fcp_eq_hdl;
4107         }
4108
4109         mqe = &mboxq->u.mqe;
4110         memcpy(&pn_page[0], ((uint8_t *)&mqe->un.supp_pages.word3),
4111                LPFC_MAX_SUPPORTED_PAGES);
4112         for (i = 0; i < LPFC_MAX_SUPPORTED_PAGES; i++) {
4113                 switch (pn_page[i]) {
4114                 case LPFC_SLI4_PARAMETERS:
4115                         phba->sli4_hba.pc_sli4_params.supported = 1;
4116                         break;
4117                 default:
4118                         break;
4119                 }
4120         }
4121
4122         /* Read the port's SLI4 Parameters capabilities if supported. */
4123         if (phba->sli4_hba.pc_sli4_params.supported)
4124                 rc = lpfc_pc_sli4_params_get(phba, mboxq);
4125         mempool_free(mboxq, phba->mbox_mem_pool);
4126         if (rc) {
4127                 rc = -EIO;
4128                 goto out_free_fcp_eq_hdl;
4129         }
4130         return rc;
4131
4132 out_free_fcp_eq_hdl:
4133         kfree(phba->sli4_hba.fcp_eq_hdl);
4134 out_free_fcf_rr_bmask:
4135         kfree(phba->fcf.fcf_rr_bmask);
4136 out_remove_rpi_hdrs:
4137         lpfc_sli4_remove_rpi_hdrs(phba);
4138 out_free_active_sgl:
4139         lpfc_free_active_sgl(phba);
4140 out_free_sgl_list:
4141         lpfc_free_sgl_list(phba);
4142 out_destroy_cq_event_pool:
4143         lpfc_sli4_cq_event_pool_destroy(phba);
4144 out_destroy_queue:
4145         lpfc_sli4_queue_destroy(phba);
4146 out_free_bsmbx:
4147         lpfc_destroy_bootstrap_mbox(phba);
4148 out_free_mem:
4149         lpfc_mem_free(phba);
4150         return rc;
4151 }
4152
4153 /**
4154  * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev
4155  * @phba: pointer to lpfc hba data structure.
4156  *
4157  * This routine is invoked to unset the driver internal resources set up
4158  * specific for supporting the SLI-4 HBA device it attached to.
4159  **/
4160 static void
4161 lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba)
4162 {
4163         struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry;
4164
4165         /* unregister default FCFI from the HBA */
4166         lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
4167
4168         /* Free the default FCR table */
4169         lpfc_sli_remove_dflt_fcf(phba);
4170
4171         /* Free memory allocated for msi-x interrupt vector entries */
4172         kfree(phba->sli4_hba.msix_entries);
4173
4174         /* Free memory allocated for fast-path work queue handles */
4175         kfree(phba->sli4_hba.fcp_eq_hdl);
4176
4177         /* Free the allocated rpi headers. */
4178         lpfc_sli4_remove_rpi_hdrs(phba);
4179         lpfc_sli4_remove_rpis(phba);
4180
4181         /* Free eligible FCF index bmask */
4182         kfree(phba->fcf.fcf_rr_bmask);
4183
4184         /* Free the ELS sgl list */
4185         lpfc_free_active_sgl(phba);
4186         lpfc_free_sgl_list(phba);
4187
4188         /* Free the SCSI sgl management array */
4189         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4190
4191         /* Free the SLI4 queues */
4192         lpfc_sli4_queue_destroy(phba);
4193
4194         /* Free the completion queue EQ event pool */
4195         lpfc_sli4_cq_event_release_all(phba);
4196         lpfc_sli4_cq_event_pool_destroy(phba);
4197
4198         /* Reset SLI4 HBA FCoE function */
4199         lpfc_pci_function_reset(phba);
4200
4201         /* Free the bsmbx region. */
4202         lpfc_destroy_bootstrap_mbox(phba);
4203
4204         /* Free the SLI Layer memory with SLI4 HBAs */
4205         lpfc_mem_free_all(phba);
4206
4207         /* Free the current connect table */
4208         list_for_each_entry_safe(conn_entry, next_conn_entry,
4209                 &phba->fcf_conn_rec_list, list) {
4210                 list_del_init(&conn_entry->list);
4211                 kfree(conn_entry);
4212         }
4213
4214         return;
4215 }
4216
4217 /**
4218  * lpfc_init_api_table_setup - Set up init api fucntion jump table
4219  * @phba: The hba struct for which this call is being executed.
4220  * @dev_grp: The HBA PCI-Device group number.
4221  *
4222  * This routine sets up the device INIT interface API function jump table
4223  * in @phba struct.
4224  *
4225  * Returns: 0 - success, -ENODEV - failure.
4226  **/
4227 int
4228 lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
4229 {
4230         phba->lpfc_hba_init_link = lpfc_hba_init_link;
4231         phba->lpfc_hba_down_link = lpfc_hba_down_link;
4232         switch (dev_grp) {
4233         case LPFC_PCI_DEV_LP:
4234                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s3;
4235                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s3;
4236                 phba->lpfc_stop_port = lpfc_stop_port_s3;
4237                 break;
4238         case LPFC_PCI_DEV_OC:
4239                 phba->lpfc_hba_down_post = lpfc_hba_down_post_s4;
4240                 phba->lpfc_handle_eratt = lpfc_handle_eratt_s4;
4241                 phba->lpfc_stop_port = lpfc_stop_port_s4;
4242                 break;
4243         default:
4244                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4245                                 "1431 Invalid HBA PCI-device group: 0x%x\n",
4246                                 dev_grp);
4247                 return -ENODEV;
4248                 break;
4249         }
4250         return 0;
4251 }
4252
4253 /**
4254  * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources.
4255  * @phba: pointer to lpfc hba data structure.
4256  *
4257  * This routine is invoked to set up the driver internal resources before the
4258  * device specific resource setup to support the HBA device it attached to.
4259  *
4260  * Return codes
4261  *      0 - successful
4262  *      other values - error
4263  **/
4264 static int
4265 lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
4266 {
4267         /*
4268          * Driver resources common to all SLI revisions
4269          */
4270         atomic_set(&phba->fast_event_count, 0);
4271         spin_lock_init(&phba->hbalock);
4272
4273         /* Initialize ndlp management spinlock */
4274         spin_lock_init(&phba->ndlp_lock);
4275
4276         INIT_LIST_HEAD(&phba->port_list);
4277         INIT_LIST_HEAD(&phba->work_list);
4278         init_waitqueue_head(&phba->wait_4_mlo_m_q);
4279
4280         /* Initialize the wait queue head for the kernel thread */
4281         init_waitqueue_head(&phba->work_waitq);
4282
4283         /* Initialize the scsi buffer list used by driver for scsi IO */
4284         spin_lock_init(&phba->scsi_buf_list_lock);
4285         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
4286
4287         /* Initialize the fabric iocb list */
4288         INIT_LIST_HEAD(&phba->fabric_iocb_list);
4289
4290         /* Initialize list to save ELS buffers */
4291         INIT_LIST_HEAD(&phba->elsbuf);
4292
4293         /* Initialize FCF connection rec list */
4294         INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
4295
4296         return 0;
4297 }
4298
4299 /**
4300  * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources.
4301  * @phba: pointer to lpfc hba data structure.
4302  *
4303  * This routine is invoked to set up the driver internal resources after the
4304  * device specific resource setup to support the HBA device it attached to.
4305  *
4306  * Return codes
4307  *      0 - successful
4308  *      other values - error
4309  **/
4310 static int
4311 lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba)
4312 {
4313         int error;
4314
4315         /* Startup the kernel thread for this host adapter. */
4316         phba->worker_thread = kthread_run(lpfc_do_work, phba,
4317                                           "lpfc_worker_%d", phba->brd_no);
4318         if (IS_ERR(phba->worker_thread)) {
4319                 error = PTR_ERR(phba->worker_thread);
4320                 return error;
4321         }
4322
4323         return 0;
4324 }
4325
4326 /**
4327  * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources.
4328  * @phba: pointer to lpfc hba data structure.
4329  *
4330  * This routine is invoked to unset the driver internal resources set up after
4331  * the device specific resource setup for supporting the HBA device it
4332  * attached to.
4333  **/
4334 static void
4335 lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba)
4336 {
4337         /* Stop kernel worker thread */
4338         kthread_stop(phba->worker_thread);
4339 }
4340
4341 /**
4342  * lpfc_free_iocb_list - Free iocb list.
4343  * @phba: pointer to lpfc hba data structure.
4344  *
4345  * This routine is invoked to free the driver's IOCB list and memory.
4346  **/
4347 static void
4348 lpfc_free_iocb_list(struct lpfc_hba *phba)
4349 {
4350         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
4351
4352         spin_lock_irq(&phba->hbalock);
4353         list_for_each_entry_safe(iocbq_entry, iocbq_next,
4354                                  &phba->lpfc_iocb_list, list) {
4355                 list_del(&iocbq_entry->list);
4356                 kfree(iocbq_entry);
4357                 phba->total_iocbq_bufs--;
4358         }
4359         spin_unlock_irq(&phba->hbalock);
4360
4361         return;
4362 }
4363
4364 /**
4365  * lpfc_init_iocb_list - Allocate and initialize iocb list.
4366  * @phba: pointer to lpfc hba data structure.
4367  *
4368  * This routine is invoked to allocate and initizlize the driver's IOCB
4369  * list and set up the IOCB tag array accordingly.
4370  *
4371  * Return codes
4372  *      0 - successful
4373  *      other values - error
4374  **/
4375 static int
4376 lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count)
4377 {
4378         struct lpfc_iocbq *iocbq_entry = NULL;
4379         uint16_t iotag;
4380         int i;
4381
4382         /* Initialize and populate the iocb list per host.  */
4383         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
4384         for (i = 0; i < iocb_count; i++) {
4385                 iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
4386                 if (iocbq_entry == NULL) {
4387                         printk(KERN_ERR "%s: only allocated %d iocbs of "
4388                                 "expected %d count. Unloading driver.\n",
4389                                 __func__, i, LPFC_IOCB_LIST_CNT);
4390                         goto out_free_iocbq;
4391                 }
4392
4393                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
4394                 if (iotag == 0) {
4395                         kfree(iocbq_entry);
4396                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
4397                                 "Unloading driver.\n", __func__);
4398                         goto out_free_iocbq;
4399                 }
4400                 iocbq_entry->sli4_xritag = NO_XRI;
4401
4402                 spin_lock_irq(&phba->hbalock);
4403                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
4404                 phba->total_iocbq_bufs++;
4405                 spin_unlock_irq(&phba->hbalock);
4406         }
4407
4408         return 0;
4409
4410 out_free_iocbq:
4411         lpfc_free_iocb_list(phba);
4412
4413         return -ENOMEM;
4414 }
4415
4416 /**
4417  * lpfc_free_sgl_list - Free sgl list.
4418  * @phba: pointer to lpfc hba data structure.
4419  *
4420  * This routine is invoked to free the driver's sgl list and memory.
4421  **/
4422 static void
4423 lpfc_free_sgl_list(struct lpfc_hba *phba)
4424 {
4425         struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
4426         LIST_HEAD(sglq_list);
4427         int rc = 0;
4428
4429         spin_lock_irq(&phba->hbalock);
4430         list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &sglq_list);
4431         spin_unlock_irq(&phba->hbalock);
4432
4433         list_for_each_entry_safe(sglq_entry, sglq_next,
4434                                  &sglq_list, list) {
4435                 list_del(&sglq_entry->list);
4436                 lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys);
4437                 kfree(sglq_entry);
4438                 phba->sli4_hba.total_sglq_bufs--;
4439         }
4440         rc = lpfc_sli4_remove_all_sgl_pages(phba);
4441         if (rc) {
4442                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4443                         "2005 Unable to deregister pages from HBA: %x\n", rc);
4444         }
4445         kfree(phba->sli4_hba.lpfc_els_sgl_array);
4446 }
4447
4448 /**
4449  * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs.
4450  * @phba: pointer to lpfc hba data structure.
4451  *
4452  * This routine is invoked to allocate the driver's active sgl memory.
4453  * This array will hold the sglq_entry's for active IOs.
4454  **/
4455 static int
4456 lpfc_init_active_sgl_array(struct lpfc_hba *phba)
4457 {
4458         int size;
4459         size = sizeof(struct lpfc_sglq *);
4460         size *= phba->sli4_hba.max_cfg_param.max_xri;
4461
4462         phba->sli4_hba.lpfc_sglq_active_list =
4463                 kzalloc(size, GFP_KERNEL);
4464         if (!phba->sli4_hba.lpfc_sglq_active_list)
4465                 return -ENOMEM;
4466         return 0;
4467 }
4468
4469 /**
4470  * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs.
4471  * @phba: pointer to lpfc hba data structure.
4472  *
4473  * This routine is invoked to walk through the array of active sglq entries
4474  * and free all of the resources.
4475  * This is just a place holder for now.
4476  **/
4477 static void
4478 lpfc_free_active_sgl(struct lpfc_hba *phba)
4479 {
4480         kfree(phba->sli4_hba.lpfc_sglq_active_list);
4481 }
4482
4483 /**
4484  * lpfc_init_sgl_list - Allocate and initialize sgl list.
4485  * @phba: pointer to lpfc hba data structure.
4486  *
4487  * This routine is invoked to allocate and initizlize the driver's sgl
4488  * list and set up the sgl xritag tag array accordingly.
4489  *
4490  * Return codes
4491  *      0 - successful
4492  *      other values - error
4493  **/
4494 static int
4495 lpfc_init_sgl_list(struct lpfc_hba *phba)
4496 {
4497         struct lpfc_sglq *sglq_entry = NULL;
4498         int i;
4499         int els_xri_cnt;
4500
4501         els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
4502         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4503                                 "2400 lpfc_init_sgl_list els %d.\n",
4504                                 els_xri_cnt);
4505         /* Initialize and populate the sglq list per host/VF. */
4506         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_sgl_list);
4507         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list);
4508
4509         /* Sanity check on XRI management */
4510         if (phba->sli4_hba.max_cfg_param.max_xri <= els_xri_cnt) {
4511                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4512                                 "2562 No room left for SCSI XRI allocation: "
4513                                 "max_xri=%d, els_xri=%d\n",
4514                                 phba->sli4_hba.max_cfg_param.max_xri,
4515                                 els_xri_cnt);
4516                 return -ENOMEM;
4517         }
4518
4519         /* Allocate memory for the ELS XRI management array */
4520         phba->sli4_hba.lpfc_els_sgl_array =
4521                         kzalloc((sizeof(struct lpfc_sglq *) * els_xri_cnt),
4522                         GFP_KERNEL);
4523
4524         if (!phba->sli4_hba.lpfc_els_sgl_array) {
4525                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4526                                 "2401 Failed to allocate memory for ELS "
4527                                 "XRI management array of size %d.\n",
4528                                 els_xri_cnt);
4529                 return -ENOMEM;
4530         }
4531
4532         /* Keep the SCSI XRI into the XRI management array */
4533         phba->sli4_hba.scsi_xri_max =
4534                         phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt;
4535         phba->sli4_hba.scsi_xri_cnt = 0;
4536
4537         phba->sli4_hba.lpfc_scsi_psb_array =
4538                         kzalloc((sizeof(struct lpfc_scsi_buf *) *
4539                         phba->sli4_hba.scsi_xri_max), GFP_KERNEL);
4540
4541         if (!phba->sli4_hba.lpfc_scsi_psb_array) {
4542                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4543                                 "2563 Failed to allocate memory for SCSI "
4544                                 "XRI management array of size %d.\n",
4545                                 phba->sli4_hba.scsi_xri_max);
4546                 kfree(phba->sli4_hba.lpfc_els_sgl_array);
4547                 return -ENOMEM;
4548         }
4549
4550         for (i = 0; i < els_xri_cnt; i++) {
4551                 sglq_entry = kzalloc(sizeof(struct lpfc_sglq), GFP_KERNEL);
4552                 if (sglq_entry == NULL) {
4553                         printk(KERN_ERR "%s: only allocated %d sgls of "
4554                                 "expected %d count. Unloading driver.\n",
4555                                 __func__, i, els_xri_cnt);
4556                         goto out_free_mem;
4557                 }
4558
4559                 sglq_entry->sli4_xritag = lpfc_sli4_next_xritag(phba);
4560                 if (sglq_entry->sli4_xritag == NO_XRI) {
4561                         kfree(sglq_entry);
4562                         printk(KERN_ERR "%s: failed to allocate XRI.\n"
4563                                 "Unloading driver.\n", __func__);
4564                         goto out_free_mem;
4565                 }
4566                 sglq_entry->buff_type = GEN_BUFF_TYPE;
4567                 sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, &sglq_entry->phys);
4568                 if (sglq_entry->virt == NULL) {
4569                         kfree(sglq_entry);
4570                         printk(KERN_ERR "%s: failed to allocate mbuf.\n"
4571                                 "Unloading driver.\n", __func__);
4572                         goto out_free_mem;
4573                 }
4574                 sglq_entry->sgl = sglq_entry->virt;
4575                 memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE);
4576
4577                 /* The list order is used by later block SGL registraton */
4578                 spin_lock_irq(&phba->hbalock);
4579                 sglq_entry->state = SGL_FREED;
4580                 list_add_tail(&sglq_entry->list, &phba->sli4_hba.lpfc_sgl_list);
4581                 phba->sli4_hba.lpfc_els_sgl_array[i] = sglq_entry;
4582                 phba->sli4_hba.total_sglq_bufs++;
4583                 spin_unlock_irq(&phba->hbalock);
4584         }
4585         return 0;
4586
4587 out_free_mem:
4588         kfree(phba->sli4_hba.lpfc_scsi_psb_array);
4589         lpfc_free_sgl_list(phba);
4590         return -ENOMEM;
4591 }
4592
4593 /**
4594  * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port
4595  * @phba: pointer to lpfc hba data structure.
4596  *
4597  * This routine is invoked to post rpi header templates to the
4598  * HBA consistent with the SLI-4 interface spec.  This routine
4599  * posts a PAGE_SIZE memory region to the port to hold up to
4600  * PAGE_SIZE modulo 64 rpi context headers.
4601  * No locks are held here because this is an initialization routine
4602  * called only from probe or lpfc_online when interrupts are not
4603  * enabled and the driver is reinitializing the device.
4604  *
4605  * Return codes
4606  *      0 - successful
4607  *      ENOMEM - No availble memory
4608  *      EIO - The mailbox failed to complete successfully.
4609  **/
4610 int
4611 lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
4612 {
4613         int rc = 0;
4614         int longs;
4615         uint16_t rpi_count;
4616         struct lpfc_rpi_hdr *rpi_hdr;
4617
4618         INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
4619
4620         /*
4621          * Provision an rpi bitmask range for discovery. The total count
4622          * is the difference between max and base + 1.
4623          */
4624         rpi_count = phba->sli4_hba.max_cfg_param.rpi_base +
4625                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4626
4627         longs = ((rpi_count) + BITS_PER_LONG - 1) / BITS_PER_LONG;
4628         phba->sli4_hba.rpi_bmask = kzalloc(longs * sizeof(unsigned long),
4629                                            GFP_KERNEL);
4630         if (!phba->sli4_hba.rpi_bmask)
4631                 return -ENOMEM;
4632
4633         rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
4634         if (!rpi_hdr) {
4635                 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4636                                 "0391 Error during rpi post operation\n");
4637                 lpfc_sli4_remove_rpis(phba);
4638                 rc = -ENODEV;
4639         }
4640
4641         return rc;
4642 }
4643
4644 /**
4645  * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region
4646  * @phba: pointer to lpfc hba data structure.
4647  *
4648  * This routine is invoked to allocate a single 4KB memory region to
4649  * support rpis and stores them in the phba.  This single region
4650  * provides support for up to 64 rpis.  The region is used globally
4651  * by the device.
4652  *
4653  * Returns:
4654  *   A valid rpi hdr on success.
4655  *   A NULL pointer on any failure.
4656  **/
4657 struct lpfc_rpi_hdr *
4658 lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba)
4659 {
4660         uint16_t rpi_limit, curr_rpi_range;
4661         struct lpfc_dmabuf *dmabuf;
4662         struct lpfc_rpi_hdr *rpi_hdr;
4663
4664         rpi_limit = phba->sli4_hba.max_cfg_param.rpi_base +
4665                     phba->sli4_hba.max_cfg_param.max_rpi - 1;
4666
4667         spin_lock_irq(&phba->hbalock);
4668         curr_rpi_range = phba->sli4_hba.next_rpi;
4669         spin_unlock_irq(&phba->hbalock);
4670
4671         /*
4672          * The port has a limited number of rpis. The increment here
4673          * is LPFC_RPI_HDR_COUNT - 1 to account for the starting value
4674          * and to allow the full max_rpi range per port.
4675          */
4676         if ((curr_rpi_range + (LPFC_RPI_HDR_COUNT - 1)) > rpi_limit)
4677                 return NULL;
4678
4679         /*
4680          * First allocate the protocol header region for the port.  The
4681          * port expects a 4KB DMA-mapped memory region that is 4K aligned.
4682          */
4683         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4684         if (!dmabuf)
4685                 return NULL;
4686
4687         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4688                                           LPFC_HDR_TEMPLATE_SIZE,
4689                                           &dmabuf->phys,
4690                                           GFP_KERNEL);
4691         if (!dmabuf->virt) {
4692                 rpi_hdr = NULL;
4693                 goto err_free_dmabuf;
4694         }
4695
4696         memset(dmabuf->virt, 0, LPFC_HDR_TEMPLATE_SIZE);
4697         if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) {
4698                 rpi_hdr = NULL;
4699                 goto err_free_coherent;
4700         }
4701
4702         /* Save the rpi header data for cleanup later. */
4703         rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL);
4704         if (!rpi_hdr)
4705                 goto err_free_coherent;
4706
4707         rpi_hdr->dmabuf = dmabuf;
4708         rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE;
4709         rpi_hdr->page_count = 1;
4710         spin_lock_irq(&phba->hbalock);
4711         rpi_hdr->start_rpi = phba->sli4_hba.next_rpi;
4712         list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list);
4713
4714         /*
4715          * The next_rpi stores the next module-64 rpi value to post
4716          * in any subsequent rpi memory region postings.
4717          */
4718         phba->sli4_hba.next_rpi += LPFC_RPI_HDR_COUNT;
4719         spin_unlock_irq(&phba->hbalock);
4720         return rpi_hdr;
4721
4722  err_free_coherent:
4723         dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE,
4724                           dmabuf->virt, dmabuf->phys);
4725  err_free_dmabuf:
4726         kfree(dmabuf);
4727         return NULL;
4728 }
4729
4730 /**
4731  * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions
4732  * @phba: pointer to lpfc hba data structure.
4733  *
4734  * This routine is invoked to remove all memory resources allocated
4735  * to support rpis. This routine presumes the caller has released all
4736  * rpis consumed by fabric or port logins and is prepared to have
4737  * the header pages removed.
4738  **/
4739 void
4740 lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba)
4741 {
4742         struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr;
4743
4744         list_for_each_entry_safe(rpi_hdr, next_rpi_hdr,
4745                                  &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
4746                 list_del(&rpi_hdr->list);
4747                 dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len,
4748                                   rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys);
4749                 kfree(rpi_hdr->dmabuf);
4750                 kfree(rpi_hdr);
4751         }
4752
4753         phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
4754         memset(phba->sli4_hba.rpi_bmask, 0, sizeof(*phba->sli4_hba.rpi_bmask));
4755 }
4756
4757 /**
4758  * lpfc_hba_alloc - Allocate driver hba data structure for a device.
4759  * @pdev: pointer to pci device data structure.
4760  *
4761  * This routine is invoked to allocate the driver hba data structure for an
4762  * HBA device. If the allocation is successful, the phba reference to the
4763  * PCI device data structure is set.
4764  *
4765  * Return codes
4766  *      pointer to @phba - successful
4767  *      NULL - error
4768  **/
4769 static struct lpfc_hba *
4770 lpfc_hba_alloc(struct pci_dev *pdev)
4771 {
4772         struct lpfc_hba *phba;
4773
4774         /* Allocate memory for HBA structure */
4775         phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL);
4776         if (!phba) {
4777                 dev_err(&pdev->dev, "failed to allocate hba struct\n");
4778                 return NULL;
4779         }
4780
4781         /* Set reference to PCI device in HBA structure */
4782         phba->pcidev = pdev;
4783
4784         /* Assign an unused board number */
4785         phba->brd_no = lpfc_get_instance();
4786         if (phba->brd_no < 0) {
4787                 kfree(phba);
4788                 return NULL;
4789         }
4790
4791         spin_lock_init(&phba->ct_ev_lock);
4792         INIT_LIST_HEAD(&phba->ct_ev_waiters);
4793
4794         return phba;
4795 }
4796
4797 /**
4798  * lpfc_hba_free - Free driver hba data structure with a device.
4799  * @phba: pointer to lpfc hba data structure.
4800  *
4801  * This routine is invoked to free the driver hba data structure with an
4802  * HBA device.
4803  **/
4804 static void
4805 lpfc_hba_free(struct lpfc_hba *phba)
4806 {
4807         /* Release the driver assigned board number */
4808         idr_remove(&lpfc_hba_index, phba->brd_no);
4809
4810         kfree(phba);
4811         return;
4812 }
4813
4814 /**
4815  * lpfc_create_shost - Create hba physical port with associated scsi host.
4816  * @phba: pointer to lpfc hba data structure.
4817  *
4818  * This routine is invoked to create HBA physical port and associate a SCSI
4819  * host with it.
4820  *
4821  * Return codes
4822  *      0 - successful
4823  *      other values - error
4824  **/
4825 static int
4826 lpfc_create_shost(struct lpfc_hba *phba)
4827 {
4828         struct lpfc_vport *vport;
4829         struct Scsi_Host  *shost;
4830
4831         /* Initialize HBA FC structure */
4832         phba->fc_edtov = FF_DEF_EDTOV;
4833         phba->fc_ratov = FF_DEF_RATOV;
4834         phba->fc_altov = FF_DEF_ALTOV;
4835         phba->fc_arbtov = FF_DEF_ARBTOV;
4836
4837         vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev);
4838         if (!vport)
4839                 return -ENODEV;
4840
4841         shost = lpfc_shost_from_vport(vport);
4842         phba->pport = vport;
4843         lpfc_debugfs_initialize(vport);
4844         /* Put reference to SCSI host to driver's device private data */
4845         pci_set_drvdata(phba->pcidev, shost);
4846
4847         return 0;
4848 }
4849
4850 /**
4851  * lpfc_destroy_shost - Destroy hba physical port with associated scsi host.
4852  * @phba: pointer to lpfc hba data structure.
4853  *
4854  * This routine is invoked to destroy HBA physical port and the associated
4855  * SCSI host.
4856  **/
4857 static void
4858 lpfc_destroy_shost(struct lpfc_hba *phba)
4859 {
4860         struct lpfc_vport *vport = phba->pport;
4861
4862         /* Destroy physical port that associated with the SCSI host */
4863         destroy_port(vport);
4864
4865         return;
4866 }
4867
4868 /**
4869  * lpfc_setup_bg - Setup Block guard structures and debug areas.
4870  * @phba: pointer to lpfc hba data structure.
4871  * @shost: the shost to be used to detect Block guard settings.
4872  *
4873  * This routine sets up the local Block guard protocol settings for @shost.
4874  * This routine also allocates memory for debugging bg buffers.
4875  **/
4876 static void
4877 lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost)
4878 {
4879         int pagecnt = 10;
4880         if (lpfc_prot_mask && lpfc_prot_guard) {
4881                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4882                                 "1478 Registering BlockGuard with the "
4883                                 "SCSI layer\n");
4884                 scsi_host_set_prot(shost, lpfc_prot_mask);
4885                 scsi_host_set_guard(shost, lpfc_prot_guard);
4886         }
4887         if (!_dump_buf_data) {
4888                 while (pagecnt) {
4889                         spin_lock_init(&_dump_buf_lock);
4890                         _dump_buf_data =
4891                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4892                         if (_dump_buf_data) {
4893                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4894                                         "9043 BLKGRD: allocated %d pages for "
4895                                        "_dump_buf_data at 0x%p\n",
4896                                        (1 << pagecnt), _dump_buf_data);
4897                                 _dump_buf_data_order = pagecnt;
4898                                 memset(_dump_buf_data, 0,
4899                                        ((1 << PAGE_SHIFT) << pagecnt));
4900                                 break;
4901                         } else
4902                                 --pagecnt;
4903                 }
4904                 if (!_dump_buf_data_order)
4905                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4906                                 "9044 BLKGRD: ERROR unable to allocate "
4907                                "memory for hexdump\n");
4908         } else
4909                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4910                         "9045 BLKGRD: already allocated _dump_buf_data=0x%p"
4911                        "\n", _dump_buf_data);
4912         if (!_dump_buf_dif) {
4913                 while (pagecnt) {
4914                         _dump_buf_dif =
4915                                 (char *) __get_free_pages(GFP_KERNEL, pagecnt);
4916                         if (_dump_buf_dif) {
4917                                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4918                                         "9046 BLKGRD: allocated %d pages for "
4919                                        "_dump_buf_dif at 0x%p\n",
4920                                        (1 << pagecnt), _dump_buf_dif);
4921                                 _dump_buf_dif_order = pagecnt;
4922                                 memset(_dump_buf_dif, 0,
4923                                        ((1 << PAGE_SHIFT) << pagecnt));
4924                                 break;
4925                         } else
4926                                 --pagecnt;
4927                 }
4928                 if (!_dump_buf_dif_order)
4929                         lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4930                         "9047 BLKGRD: ERROR unable to allocate "
4931                                "memory for hexdump\n");
4932         } else
4933                 lpfc_printf_log(phba, KERN_ERR, LOG_BG,
4934                         "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n",
4935                        _dump_buf_dif);
4936 }
4937
4938 /**
4939  * lpfc_post_init_setup - Perform necessary device post initialization setup.
4940  * @phba: pointer to lpfc hba data structure.
4941  *
4942  * This routine is invoked to perform all the necessary post initialization
4943  * setup for the device.
4944  **/
4945 static void
4946 lpfc_post_init_setup(struct lpfc_hba *phba)
4947 {
4948         struct Scsi_Host  *shost;
4949         struct lpfc_adapter_event_header adapter_event;
4950
4951         /* Get the default values for Model Name and Description */
4952         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
4953
4954         /*
4955          * hba setup may have changed the hba_queue_depth so we need to
4956          * adjust the value of can_queue.
4957          */
4958         shost = pci_get_drvdata(phba->pcidev);
4959         shost->can_queue = phba->cfg_hba_queue_depth - 10;
4960         if (phba->sli3_options & LPFC_SLI3_BG_ENABLED)
4961                 lpfc_setup_bg(phba, shost);
4962
4963         lpfc_host_attrib_init(shost);
4964
4965         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
4966                 spin_lock_irq(shost->host_lock);
4967                 lpfc_poll_start_timer(phba);
4968                 spin_unlock_irq(shost->host_lock);
4969         }
4970
4971         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4972                         "0428 Perform SCSI scan\n");
4973         /* Send board arrival event to upper layer */
4974         adapter_event.event_type = FC_REG_ADAPTER_EVENT;
4975         adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
4976         fc_host_post_vendor_event(shost, fc_get_event_number(),
4977                                   sizeof(adapter_event),
4978                                   (char *) &adapter_event,
4979                                   LPFC_NL_VENDOR_ID);
4980         return;
4981 }
4982
4983 /**
4984  * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space.
4985  * @phba: pointer to lpfc hba data structure.
4986  *
4987  * This routine is invoked to set up the PCI device memory space for device
4988  * with SLI-3 interface spec.
4989  *
4990  * Return codes
4991  *      0 - successful
4992  *      other values - error
4993  **/
4994 static int
4995 lpfc_sli_pci_mem_setup(struct lpfc_hba *phba)
4996 {
4997         struct pci_dev *pdev;
4998         unsigned long bar0map_len, bar2map_len;
4999         int i, hbq_count;
5000         void *ptr;
5001         int error = -ENODEV;
5002
5003         /* Obtain PCI device reference */
5004         if (!phba->pcidev)
5005                 return error;
5006         else
5007                 pdev = phba->pcidev;
5008
5009         /* Set the device DMA mask size */
5010         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
5011          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
5012                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
5013                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
5014                         return error;
5015                 }
5016         }
5017
5018         /* Get the bus address of Bar0 and Bar2 and the number of bytes
5019          * required by each mapping.
5020          */
5021         phba->pci_bar0_map = pci_resource_start(pdev, 0);
5022         bar0map_len = pci_resource_len(pdev, 0);
5023
5024         phba->pci_bar2_map = pci_resource_start(pdev, 2);
5025         bar2map_len = pci_resource_len(pdev, 2);
5026
5027         /* Map HBA SLIM to a kernel virtual address. */
5028         phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len);
5029         if (!phba->slim_memmap_p) {
5030                 dev_printk(KERN_ERR, &pdev->dev,
5031                            "ioremap failed for SLIM memory.\n");
5032                 goto out;
5033         }
5034
5035         /* Map HBA Control Registers to a kernel virtual address. */
5036         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
5037         if (!phba->ctrl_regs_memmap_p) {
5038                 dev_printk(KERN_ERR, &pdev->dev,
5039                            "ioremap failed for HBA control registers.\n");
5040                 goto out_iounmap_slim;
5041         }
5042
5043         /* Allocate memory for SLI-2 structures */
5044         phba->slim2p.virt = dma_alloc_coherent(&pdev->dev,
5045                                                SLI2_SLIM_SIZE,
5046                                                &phba->slim2p.phys,
5047                                                GFP_KERNEL);
5048         if (!phba->slim2p.virt)
5049                 goto out_iounmap;
5050
5051         memset(phba->slim2p.virt, 0, SLI2_SLIM_SIZE);
5052         phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx);
5053         phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb));
5054         phba->IOCBs = (phba->slim2p.virt +
5055                        offsetof(struct lpfc_sli2_slim, IOCBs));
5056
5057         phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev,
5058                                                  lpfc_sli_hbq_size(),
5059                                                  &phba->hbqslimp.phys,
5060                                                  GFP_KERNEL);
5061         if (!phba->hbqslimp.virt)
5062                 goto out_free_slim;
5063
5064         hbq_count = lpfc_sli_hbq_count();
5065         ptr = phba->hbqslimp.virt;
5066         for (i = 0; i < hbq_count; ++i) {
5067                 phba->hbqs[i].hbq_virt = ptr;
5068                 INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list);
5069                 ptr += (lpfc_hbq_defs[i]->entry_count *
5070                         sizeof(struct lpfc_hbq_entry));
5071         }
5072         phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc;
5073         phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free;
5074
5075         memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size());
5076
5077         INIT_LIST_HEAD(&phba->rb_pend_list);
5078
5079         phba->MBslimaddr = phba->slim_memmap_p;
5080         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
5081         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
5082         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
5083         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
5084
5085         return 0;
5086
5087 out_free_slim:
5088         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5089                           phba->slim2p.virt, phba->slim2p.phys);
5090 out_iounmap:
5091         iounmap(phba->ctrl_regs_memmap_p);
5092 out_iounmap_slim:
5093         iounmap(phba->slim_memmap_p);
5094 out:
5095         return error;
5096 }
5097
5098 /**
5099  * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space.
5100  * @phba: pointer to lpfc hba data structure.
5101  *
5102  * This routine is invoked to unset the PCI device memory space for device
5103  * with SLI-3 interface spec.
5104  **/
5105 static void
5106 lpfc_sli_pci_mem_unset(struct lpfc_hba *phba)
5107 {
5108         struct pci_dev *pdev;
5109
5110         /* Obtain PCI device reference */
5111         if (!phba->pcidev)
5112                 return;
5113         else
5114                 pdev = phba->pcidev;
5115
5116         /* Free coherent DMA memory allocated */
5117         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
5118                           phba->hbqslimp.virt, phba->hbqslimp.phys);
5119         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
5120                           phba->slim2p.virt, phba->slim2p.phys);
5121
5122         /* I/O memory unmap */
5123         iounmap(phba->ctrl_regs_memmap_p);
5124         iounmap(phba->slim_memmap_p);
5125
5126         return;
5127 }
5128
5129 /**
5130  * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status
5131  * @phba: pointer to lpfc hba data structure.
5132  *
5133  * This routine is invoked to wait for SLI4 device Power On Self Test (POST)
5134  * done and check status.
5135  *
5136  * Return 0 if successful, otherwise -ENODEV.
5137  **/
5138 int
5139 lpfc_sli4_post_status_check(struct lpfc_hba *phba)
5140 {
5141         struct lpfc_register sta_reg, uerrlo_reg, uerrhi_reg;
5142         int i, port_error = -ENODEV;
5143
5144         if (!phba->sli4_hba.STAregaddr)
5145                 return -ENODEV;
5146
5147         /* Wait up to 30 seconds for the SLI Port POST done and ready */
5148         for (i = 0; i < 3000; i++) {
5149                 sta_reg.word0 = readl(phba->sli4_hba.STAregaddr);
5150                 /* Encounter fatal POST error, break out */
5151                 if (bf_get(lpfc_hst_state_perr, &sta_reg)) {
5152                         port_error = -ENODEV;
5153                         break;
5154                 }
5155                 if (LPFC_POST_STAGE_ARMFW_READY ==
5156                     bf_get(lpfc_hst_state_port_status, &sta_reg)) {
5157                         port_error = 0;
5158                         break;
5159                 }
5160                 msleep(10);
5161         }
5162
5163         if (port_error)
5164                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5165                         "1408 Failure HBA POST Status: sta_reg=0x%x, "
5166                         "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, xrom=x%x, "
5167                         "dl=x%x, pstatus=x%x\n", sta_reg.word0,
5168                         bf_get(lpfc_hst_state_perr, &sta_reg),
5169                         bf_get(lpfc_hst_state_sfi, &sta_reg),
5170                         bf_get(lpfc_hst_state_nip, &sta_reg),
5171                         bf_get(lpfc_hst_state_ipc, &sta_reg),
5172                         bf_get(lpfc_hst_state_xrom, &sta_reg),
5173                         bf_get(lpfc_hst_state_dl, &sta_reg),
5174                         bf_get(lpfc_hst_state_port_status, &sta_reg));
5175
5176         /* Log device information */
5177         phba->sli4_hba.sli_intf.word0 = readl(phba->sli4_hba.SLIINTFregaddr);
5178         if (bf_get(lpfc_sli_intf_valid,
5179                    &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_VALID) {
5180                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5181                                 "2534 Device Info: ChipType=0x%x, SliRev=0x%x, "
5182                                 "FeatureL1=0x%x, FeatureL2=0x%x\n",
5183                                 bf_get(lpfc_sli_intf_sli_family,
5184                                        &phba->sli4_hba.sli_intf),
5185                                 bf_get(lpfc_sli_intf_slirev,
5186                                        &phba->sli4_hba.sli_intf),
5187                                 bf_get(lpfc_sli_intf_featurelevel1,
5188                                        &phba->sli4_hba.sli_intf),
5189                                 bf_get(lpfc_sli_intf_featurelevel2,
5190                                        &phba->sli4_hba.sli_intf));
5191         }
5192         phba->sli4_hba.ue_mask_lo = readl(phba->sli4_hba.UEMASKLOregaddr);
5193         phba->sli4_hba.ue_mask_hi = readl(phba->sli4_hba.UEMASKHIregaddr);
5194         /* With uncoverable error, log the error message and return error */
5195         uerrlo_reg.word0 = readl(phba->sli4_hba.UERRLOregaddr);
5196         uerrhi_reg.word0 = readl(phba->sli4_hba.UERRHIregaddr);
5197         if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) ||
5198             (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) {
5199                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5200                                 "1422 HBA Unrecoverable error: "
5201                                 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
5202                                 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
5203                                 uerrlo_reg.word0, uerrhi_reg.word0,
5204                                 phba->sli4_hba.ue_mask_lo,
5205                                 phba->sli4_hba.ue_mask_hi);
5206                 return -ENODEV;
5207         }
5208
5209         return port_error;
5210 }
5211
5212 /**
5213  * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map.
5214  * @phba: pointer to lpfc hba data structure.
5215  *
5216  * This routine is invoked to set up SLI4 BAR0 PCI config space register
5217  * memory map.
5218  **/
5219 static void
5220 lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba)
5221 {
5222         phba->sli4_hba.UERRLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5223                                         LPFC_UERR_STATUS_LO;
5224         phba->sli4_hba.UERRHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5225                                         LPFC_UERR_STATUS_HI;
5226         phba->sli4_hba.UEMASKLOregaddr = phba->sli4_hba.conf_regs_memmap_p +
5227                                         LPFC_UE_MASK_LO;
5228         phba->sli4_hba.UEMASKHIregaddr = phba->sli4_hba.conf_regs_memmap_p +
5229                                         LPFC_UE_MASK_HI;
5230         phba->sli4_hba.SLIINTFregaddr = phba->sli4_hba.conf_regs_memmap_p +
5231                                         LPFC_SLI_INTF;
5232 }
5233
5234 /**
5235  * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map.
5236  * @phba: pointer to lpfc hba data structure.
5237  *
5238  * This routine is invoked to set up SLI4 BAR1 control status register (CSR)
5239  * memory map.
5240  **/
5241 static void
5242 lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba)
5243 {
5244
5245         phba->sli4_hba.STAregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5246                                     LPFC_HST_STATE;
5247         phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5248                                     LPFC_HST_ISR0;
5249         phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5250                                     LPFC_HST_IMR0;
5251         phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p +
5252                                      LPFC_HST_ISCR0;
5253         return;
5254 }
5255
5256 /**
5257  * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map.
5258  * @phba: pointer to lpfc hba data structure.
5259  * @vf: virtual function number
5260  *
5261  * This routine is invoked to set up SLI4 BAR2 doorbell register memory map
5262  * based on the given viftual function number, @vf.
5263  *
5264  * Return 0 if successful, otherwise -ENODEV.
5265  **/
5266 static int
5267 lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf)
5268 {
5269         if (vf > LPFC_VIR_FUNC_MAX)
5270                 return -ENODEV;
5271
5272         phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5273                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_RQ_DOORBELL);
5274         phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5275                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_WQ_DOORBELL);
5276         phba->sli4_hba.EQCQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5277                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_EQCQ_DOORBELL);
5278         phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5279                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL);
5280         phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p +
5281                                 vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX);
5282         return 0;
5283 }
5284
5285 /**
5286  * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox
5287  * @phba: pointer to lpfc hba data structure.
5288  *
5289  * This routine is invoked to create the bootstrap mailbox
5290  * region consistent with the SLI-4 interface spec.  This
5291  * routine allocates all memory necessary to communicate
5292  * mailbox commands to the port and sets up all alignment
5293  * needs.  No locks are expected to be held when calling
5294  * this routine.
5295  *
5296  * Return codes
5297  *      0 - successful
5298  *      ENOMEM - could not allocated memory.
5299  **/
5300 static int
5301 lpfc_create_bootstrap_mbox(struct lpfc_hba *phba)
5302 {
5303         uint32_t bmbx_size;
5304         struct lpfc_dmabuf *dmabuf;
5305         struct dma_address *dma_address;
5306         uint32_t pa_addr;
5307         uint64_t phys_addr;
5308
5309         dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
5310         if (!dmabuf)
5311                 return -ENOMEM;
5312
5313         /*
5314          * The bootstrap mailbox region is comprised of 2 parts
5315          * plus an alignment restriction of 16 bytes.
5316          */
5317         bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1);
5318         dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
5319                                           bmbx_size,
5320                                           &dmabuf->phys,
5321                                           GFP_KERNEL);
5322         if (!dmabuf->virt) {
5323                 kfree(dmabuf);
5324                 return -ENOMEM;
5325         }
5326         memset(dmabuf->virt, 0, bmbx_size);
5327
5328         /*
5329          * Initialize the bootstrap mailbox pointers now so that the register
5330          * operations are simple later.  The mailbox dma address is required
5331          * to be 16-byte aligned.  Also align the virtual memory as each
5332          * maibox is copied into the bmbx mailbox region before issuing the
5333          * command to the port.
5334          */
5335         phba->sli4_hba.bmbx.dmabuf = dmabuf;
5336         phba->sli4_hba.bmbx.bmbx_size = bmbx_size;
5337
5338         phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt,
5339                                               LPFC_ALIGN_16_BYTE);
5340         phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys,
5341                                               LPFC_ALIGN_16_BYTE);
5342
5343         /*
5344          * Set the high and low physical addresses now.  The SLI4 alignment
5345          * requirement is 16 bytes and the mailbox is posted to the port
5346          * as two 30-bit addresses.  The other data is a bit marking whether
5347          * the 30-bit address is the high or low address.
5348          * Upcast bmbx aphys to 64bits so shift instruction compiles
5349          * clean on 32 bit machines.
5350          */
5351         dma_address = &phba->sli4_hba.bmbx.dma_address;
5352         phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys;
5353         pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff);
5354         dma_address->addr_hi = (uint32_t) ((pa_addr << 2) |
5355                                            LPFC_BMBX_BIT1_ADDR_HI);
5356
5357         pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff);
5358         dma_address->addr_lo = (uint32_t) ((pa_addr << 2) |
5359                                            LPFC_BMBX_BIT1_ADDR_LO);
5360         return 0;
5361 }
5362
5363 /**
5364  * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources
5365  * @phba: pointer to lpfc hba data structure.
5366  *
5367  * This routine is invoked to teardown the bootstrap mailbox
5368  * region and release all host resources. This routine requires
5369  * the caller to ensure all mailbox commands recovered, no
5370  * additional mailbox comands are sent, and interrupts are disabled
5371  * before calling this routine.
5372  *
5373  **/
5374 static void
5375 lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
5376 {
5377         dma_free_coherent(&phba->pcidev->dev,
5378                           phba->sli4_hba.bmbx.bmbx_size,
5379                           phba->sli4_hba.bmbx.dmabuf->virt,
5380                           phba->sli4_hba.bmbx.dmabuf->phys);
5381
5382         kfree(phba->sli4_hba.bmbx.dmabuf);
5383         memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx));
5384 }
5385
5386 /**
5387  * lpfc_sli4_read_config - Get the config parameters.
5388  * @phba: pointer to lpfc hba data structure.
5389  *
5390  * This routine is invoked to read the configuration parameters from the HBA.
5391  * The configuration parameters are used to set the base and maximum values
5392  * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource
5393  * allocation for the port.
5394  *
5395  * Return codes
5396  *      0 - successful
5397  *      ENOMEM - No availble memory
5398  *      EIO - The mailbox failed to complete successfully.
5399  **/
5400 static int
5401 lpfc_sli4_read_config(struct lpfc_hba *phba)
5402 {
5403         LPFC_MBOXQ_t *pmb;
5404         struct lpfc_mbx_read_config *rd_config;
5405         uint32_t rc = 0;
5406
5407         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5408         if (!pmb) {
5409                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5410                                 "2011 Unable to allocate memory for issuing "
5411                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5412                 return -ENOMEM;
5413         }
5414
5415         lpfc_read_config(phba, pmb);
5416
5417         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
5418         if (rc != MBX_SUCCESS) {
5419                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5420                         "2012 Mailbox failed , mbxCmd x%x "
5421                         "READ_CONFIG, mbxStatus x%x\n",
5422                         bf_get(lpfc_mqe_command, &pmb->u.mqe),
5423                         bf_get(lpfc_mqe_status, &pmb->u.mqe));
5424                 rc = -EIO;
5425         } else {
5426                 rd_config = &pmb->u.mqe.un.rd_config;
5427                 phba->sli4_hba.max_cfg_param.max_xri =
5428                         bf_get(lpfc_mbx_rd_conf_xri_count, rd_config);
5429                 phba->sli4_hba.max_cfg_param.xri_base =
5430                         bf_get(lpfc_mbx_rd_conf_xri_base, rd_config);
5431                 phba->sli4_hba.max_cfg_param.max_vpi =
5432                         bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config);
5433                 phba->sli4_hba.max_cfg_param.vpi_base =
5434                         bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config);
5435                 phba->sli4_hba.max_cfg_param.max_rpi =
5436                         bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config);
5437                 phba->sli4_hba.max_cfg_param.rpi_base =
5438                         bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config);
5439                 phba->sli4_hba.max_cfg_param.max_vfi =
5440                         bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config);
5441                 phba->sli4_hba.max_cfg_param.vfi_base =
5442                         bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config);
5443                 phba->sli4_hba.max_cfg_param.max_fcfi =
5444                         bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config);
5445                 phba->sli4_hba.max_cfg_param.fcfi_base =
5446                         bf_get(lpfc_mbx_rd_conf_fcfi_base, rd_config);
5447                 phba->sli4_hba.max_cfg_param.max_eq =
5448                         bf_get(lpfc_mbx_rd_conf_eq_count, rd_config);
5449                 phba->sli4_hba.max_cfg_param.max_rq =
5450                         bf_get(lpfc_mbx_rd_conf_rq_count, rd_config);
5451                 phba->sli4_hba.max_cfg_param.max_wq =
5452                         bf_get(lpfc_mbx_rd_conf_wq_count, rd_config);
5453                 phba->sli4_hba.max_cfg_param.max_cq =
5454                         bf_get(lpfc_mbx_rd_conf_cq_count, rd_config);
5455                 phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config);
5456                 phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base;
5457                 phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base;
5458                 phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base;
5459                 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.rpi_base;
5460                 phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ?
5461                                 (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0;
5462                 phba->max_vports = phba->max_vpi;
5463                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5464                                 "2003 cfg params XRI(B:%d M:%d), "
5465                                 "VPI(B:%d M:%d) "
5466                                 "VFI(B:%d M:%d) "
5467                                 "RPI(B:%d M:%d) "
5468                                 "FCFI(B:%d M:%d)\n",
5469                                 phba->sli4_hba.max_cfg_param.xri_base,
5470                                 phba->sli4_hba.max_cfg_param.max_xri,
5471                                 phba->sli4_hba.max_cfg_param.vpi_base,
5472                                 phba->sli4_hba.max_cfg_param.max_vpi,
5473                                 phba->sli4_hba.max_cfg_param.vfi_base,
5474                                 phba->sli4_hba.max_cfg_param.max_vfi,
5475                                 phba->sli4_hba.max_cfg_param.rpi_base,
5476                                 phba->sli4_hba.max_cfg_param.max_rpi,
5477                                 phba->sli4_hba.max_cfg_param.fcfi_base,
5478                                 phba->sli4_hba.max_cfg_param.max_fcfi);
5479         }
5480         mempool_free(pmb, phba->mbox_mem_pool);
5481
5482         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
5483         if (phba->cfg_hba_queue_depth > (phba->sli4_hba.max_cfg_param.max_xri))
5484                 phba->cfg_hba_queue_depth =
5485                                 phba->sli4_hba.max_cfg_param.max_xri;
5486         return rc;
5487 }
5488
5489 /**
5490  * lpfc_dev_endian_order_setup - Notify the port of the host's endian order.
5491  * @phba: pointer to lpfc hba data structure.
5492  *
5493  * This routine is invoked to setup the host-side endian order to the
5494  * HBA consistent with the SLI-4 interface spec.
5495  *
5496  * Return codes
5497  *      0 - successful
5498  *      ENOMEM - No availble memory
5499  *      EIO - The mailbox failed to complete successfully.
5500  **/
5501 static int
5502 lpfc_setup_endian_order(struct lpfc_hba *phba)
5503 {
5504         LPFC_MBOXQ_t *mboxq;
5505         uint32_t rc = 0;
5506         uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0,
5507                                       HOST_ENDIAN_HIGH_WORD1};
5508
5509         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5510         if (!mboxq) {
5511                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5512                                 "0492 Unable to allocate memory for issuing "
5513                                 "SLI_CONFIG_SPECIAL mailbox command\n");
5514                 return -ENOMEM;
5515         }
5516
5517         /*
5518          * The SLI4_CONFIG_SPECIAL mailbox command requires the first two
5519          * words to contain special data values and no other data.
5520          */
5521         memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
5522         memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data));
5523         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5524         if (rc != MBX_SUCCESS) {
5525                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5526                                 "0493 SLI_CONFIG_SPECIAL mailbox failed with "
5527                                 "status x%x\n",
5528                                 rc);
5529                 rc = -EIO;
5530         }
5531
5532         mempool_free(mboxq, phba->mbox_mem_pool);
5533         return rc;
5534 }
5535
5536 /**
5537  * lpfc_sli4_queue_create - Create all the SLI4 queues
5538  * @phba: pointer to lpfc hba data structure.
5539  *
5540  * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA
5541  * operation. For each SLI4 queue type, the parameters such as queue entry
5542  * count (queue depth) shall be taken from the module parameter. For now,
5543  * we just use some constant number as place holder.
5544  *
5545  * Return codes
5546  *      0 - successful
5547  *      ENOMEM - No availble memory
5548  *      EIO - The mailbox failed to complete successfully.
5549  **/
5550 static int
5551 lpfc_sli4_queue_create(struct lpfc_hba *phba)
5552 {
5553         struct lpfc_queue *qdesc;
5554         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5555         int cfg_fcp_wq_count;
5556         int cfg_fcp_eq_count;
5557
5558         /*
5559          * Sanity check for confiugred queue parameters against the run-time
5560          * device parameters
5561          */
5562
5563         /* Sanity check on FCP fast-path WQ parameters */
5564         cfg_fcp_wq_count = phba->cfg_fcp_wq_count;
5565         if (cfg_fcp_wq_count >
5566             (phba->sli4_hba.max_cfg_param.max_wq - LPFC_SP_WQN_DEF)) {
5567                 cfg_fcp_wq_count = phba->sli4_hba.max_cfg_param.max_wq -
5568                                    LPFC_SP_WQN_DEF;
5569                 if (cfg_fcp_wq_count < LPFC_FP_WQN_MIN) {
5570                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5571                                         "2581 Not enough WQs (%d) from "
5572                                         "the pci function for supporting "
5573                                         "FCP WQs (%d)\n",
5574                                         phba->sli4_hba.max_cfg_param.max_wq,
5575                                         phba->cfg_fcp_wq_count);
5576                         goto out_error;
5577                 }
5578                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5579                                 "2582 Not enough WQs (%d) from the pci "
5580                                 "function for supporting the requested "
5581                                 "FCP WQs (%d), the actual FCP WQs can "
5582                                 "be supported: %d\n",
5583                                 phba->sli4_hba.max_cfg_param.max_wq,
5584                                 phba->cfg_fcp_wq_count, cfg_fcp_wq_count);
5585         }
5586         /* The actual number of FCP work queues adopted */
5587         phba->cfg_fcp_wq_count = cfg_fcp_wq_count;
5588
5589         /* Sanity check on FCP fast-path EQ parameters */
5590         cfg_fcp_eq_count = phba->cfg_fcp_eq_count;
5591         if (cfg_fcp_eq_count >
5592             (phba->sli4_hba.max_cfg_param.max_eq - LPFC_SP_EQN_DEF)) {
5593                 cfg_fcp_eq_count = phba->sli4_hba.max_cfg_param.max_eq -
5594                                    LPFC_SP_EQN_DEF;
5595                 if (cfg_fcp_eq_count < LPFC_FP_EQN_MIN) {
5596                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5597                                         "2574 Not enough EQs (%d) from the "
5598                                         "pci function for supporting FCP "
5599                                         "EQs (%d)\n",
5600                                         phba->sli4_hba.max_cfg_param.max_eq,
5601                                         phba->cfg_fcp_eq_count);
5602                         goto out_error;
5603                 }
5604                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5605                                 "2575 Not enough EQs (%d) from the pci "
5606                                 "function for supporting the requested "
5607                                 "FCP EQs (%d), the actual FCP EQs can "
5608                                 "be supported: %d\n",
5609                                 phba->sli4_hba.max_cfg_param.max_eq,
5610                                 phba->cfg_fcp_eq_count, cfg_fcp_eq_count);
5611         }
5612         /* It does not make sense to have more EQs than WQs */
5613         if (cfg_fcp_eq_count > phba->cfg_fcp_wq_count) {
5614                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
5615                                 "2593 The FCP EQ count(%d) cannot be greater "
5616                                 "than the FCP WQ count(%d), limiting the "
5617                                 "FCP EQ count to %d\n", cfg_fcp_eq_count,
5618                                 phba->cfg_fcp_wq_count,
5619                                 phba->cfg_fcp_wq_count);
5620                 cfg_fcp_eq_count = phba->cfg_fcp_wq_count;
5621         }
5622         /* The actual number of FCP event queues adopted */
5623         phba->cfg_fcp_eq_count = cfg_fcp_eq_count;
5624         /* The overall number of event queues used */
5625         phba->sli4_hba.cfg_eqn = phba->cfg_fcp_eq_count + LPFC_SP_EQN_DEF;
5626
5627         /*
5628          * Create Event Queues (EQs)
5629          */
5630
5631         /* Get EQ depth from module parameter, fake the default for now */
5632         phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B;
5633         phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT;
5634
5635         /* Create slow path event queue */
5636         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5637                                       phba->sli4_hba.eq_ecount);
5638         if (!qdesc) {
5639                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5640                                 "0496 Failed allocate slow-path EQ\n");
5641                 goto out_error;
5642         }
5643         phba->sli4_hba.sp_eq = qdesc;
5644
5645         /* Create fast-path FCP Event Queue(s) */
5646         phba->sli4_hba.fp_eq = kzalloc((sizeof(struct lpfc_queue *) *
5647                                phba->cfg_fcp_eq_count), GFP_KERNEL);
5648         if (!phba->sli4_hba.fp_eq) {
5649                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5650                                 "2576 Failed allocate memory for fast-path "
5651                                 "EQ record array\n");
5652                 goto out_free_sp_eq;
5653         }
5654         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5655                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
5656                                               phba->sli4_hba.eq_ecount);
5657                 if (!qdesc) {
5658                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5659                                         "0497 Failed allocate fast-path EQ\n");
5660                         goto out_free_fp_eq;
5661                 }
5662                 phba->sli4_hba.fp_eq[fcp_eqidx] = qdesc;
5663         }
5664
5665         /*
5666          * Create Complete Queues (CQs)
5667          */
5668
5669         /* Get CQ depth from module parameter, fake the default for now */
5670         phba->sli4_hba.cq_esize = LPFC_CQE_SIZE;
5671         phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT;
5672
5673         /* Create slow-path Mailbox Command Complete Queue */
5674         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5675                                       phba->sli4_hba.cq_ecount);
5676         if (!qdesc) {
5677                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5678                                 "0500 Failed allocate slow-path mailbox CQ\n");
5679                 goto out_free_fp_eq;
5680         }
5681         phba->sli4_hba.mbx_cq = qdesc;
5682
5683         /* Create slow-path ELS Complete Queue */
5684         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5685                                       phba->sli4_hba.cq_ecount);
5686         if (!qdesc) {
5687                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5688                                 "0501 Failed allocate slow-path ELS CQ\n");
5689                 goto out_free_mbx_cq;
5690         }
5691         phba->sli4_hba.els_cq = qdesc;
5692
5693
5694         /* Create fast-path FCP Completion Queue(s), one-to-one with EQs */
5695         phba->sli4_hba.fcp_cq = kzalloc((sizeof(struct lpfc_queue *) *
5696                                 phba->cfg_fcp_eq_count), GFP_KERNEL);
5697         if (!phba->sli4_hba.fcp_cq) {
5698                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5699                                 "2577 Failed allocate memory for fast-path "
5700                                 "CQ record array\n");
5701                 goto out_free_els_cq;
5702         }
5703         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
5704                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
5705                                               phba->sli4_hba.cq_ecount);
5706                 if (!qdesc) {
5707                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5708                                         "0499 Failed allocate fast-path FCP "
5709                                         "CQ (%d)\n", fcp_cqidx);
5710                         goto out_free_fcp_cq;
5711                 }
5712                 phba->sli4_hba.fcp_cq[fcp_cqidx] = qdesc;
5713         }
5714
5715         /* Create Mailbox Command Queue */
5716         phba->sli4_hba.mq_esize = LPFC_MQE_SIZE;
5717         phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT;
5718
5719         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.mq_esize,
5720                                       phba->sli4_hba.mq_ecount);
5721         if (!qdesc) {
5722                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5723                                 "0505 Failed allocate slow-path MQ\n");
5724                 goto out_free_fcp_cq;
5725         }
5726         phba->sli4_hba.mbx_wq = qdesc;
5727
5728         /*
5729          * Create all the Work Queues (WQs)
5730          */
5731         phba->sli4_hba.wq_esize = LPFC_WQE_SIZE;
5732         phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT;
5733
5734         /* Create slow-path ELS Work Queue */
5735         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5736                                       phba->sli4_hba.wq_ecount);
5737         if (!qdesc) {
5738                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5739                                 "0504 Failed allocate slow-path ELS WQ\n");
5740                 goto out_free_mbx_wq;
5741         }
5742         phba->sli4_hba.els_wq = qdesc;
5743
5744         /* Create fast-path FCP Work Queue(s) */
5745         phba->sli4_hba.fcp_wq = kzalloc((sizeof(struct lpfc_queue *) *
5746                                 phba->cfg_fcp_wq_count), GFP_KERNEL);
5747         if (!phba->sli4_hba.fcp_wq) {
5748                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5749                                 "2578 Failed allocate memory for fast-path "
5750                                 "WQ record array\n");
5751                 goto out_free_els_wq;
5752         }
5753         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
5754                 qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
5755                                               phba->sli4_hba.wq_ecount);
5756                 if (!qdesc) {
5757                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5758                                         "0503 Failed allocate fast-path FCP "
5759                                         "WQ (%d)\n", fcp_wqidx);
5760                         goto out_free_fcp_wq;
5761                 }
5762                 phba->sli4_hba.fcp_wq[fcp_wqidx] = qdesc;
5763         }
5764
5765         /*
5766          * Create Receive Queue (RQ)
5767          */
5768         phba->sli4_hba.rq_esize = LPFC_RQE_SIZE;
5769         phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT;
5770
5771         /* Create Receive Queue for header */
5772         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5773                                       phba->sli4_hba.rq_ecount);
5774         if (!qdesc) {
5775                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5776                                 "0506 Failed allocate receive HRQ\n");
5777                 goto out_free_fcp_wq;
5778         }
5779         phba->sli4_hba.hdr_rq = qdesc;
5780
5781         /* Create Receive Queue for data */
5782         qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.rq_esize,
5783                                       phba->sli4_hba.rq_ecount);
5784         if (!qdesc) {
5785                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5786                                 "0507 Failed allocate receive DRQ\n");
5787                 goto out_free_hdr_rq;
5788         }
5789         phba->sli4_hba.dat_rq = qdesc;
5790
5791         return 0;
5792
5793 out_free_hdr_rq:
5794         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5795         phba->sli4_hba.hdr_rq = NULL;
5796 out_free_fcp_wq:
5797         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--) {
5798                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_wqidx]);
5799                 phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
5800         }
5801         kfree(phba->sli4_hba.fcp_wq);
5802 out_free_els_wq:
5803         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5804         phba->sli4_hba.els_wq = NULL;
5805 out_free_mbx_wq:
5806         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5807         phba->sli4_hba.mbx_wq = NULL;
5808 out_free_fcp_cq:
5809         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--) {
5810                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_cqidx]);
5811                 phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
5812         }
5813         kfree(phba->sli4_hba.fcp_cq);
5814 out_free_els_cq:
5815         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5816         phba->sli4_hba.els_cq = NULL;
5817 out_free_mbx_cq:
5818         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5819         phba->sli4_hba.mbx_cq = NULL;
5820 out_free_fp_eq:
5821         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--) {
5822                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_eqidx]);
5823                 phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
5824         }
5825         kfree(phba->sli4_hba.fp_eq);
5826 out_free_sp_eq:
5827         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5828         phba->sli4_hba.sp_eq = NULL;
5829 out_error:
5830         return -ENOMEM;
5831 }
5832
5833 /**
5834  * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues
5835  * @phba: pointer to lpfc hba data structure.
5836  *
5837  * This routine is invoked to release all the SLI4 queues with the FCoE HBA
5838  * operation.
5839  *
5840  * Return codes
5841  *      0 - successful
5842  *      ENOMEM - No availble memory
5843  *      EIO - The mailbox failed to complete successfully.
5844  **/
5845 static void
5846 lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
5847 {
5848         int fcp_qidx;
5849
5850         /* Release mailbox command work queue */
5851         lpfc_sli4_queue_free(phba->sli4_hba.mbx_wq);
5852         phba->sli4_hba.mbx_wq = NULL;
5853
5854         /* Release ELS work queue */
5855         lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
5856         phba->sli4_hba.els_wq = NULL;
5857
5858         /* Release FCP work queue */
5859         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
5860                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
5861         kfree(phba->sli4_hba.fcp_wq);
5862         phba->sli4_hba.fcp_wq = NULL;
5863
5864         /* Release unsolicited receive queue */
5865         lpfc_sli4_queue_free(phba->sli4_hba.hdr_rq);
5866         phba->sli4_hba.hdr_rq = NULL;
5867         lpfc_sli4_queue_free(phba->sli4_hba.dat_rq);
5868         phba->sli4_hba.dat_rq = NULL;
5869
5870         /* Release ELS complete queue */
5871         lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
5872         phba->sli4_hba.els_cq = NULL;
5873
5874         /* Release mailbox command complete queue */
5875         lpfc_sli4_queue_free(phba->sli4_hba.mbx_cq);
5876         phba->sli4_hba.mbx_cq = NULL;
5877
5878         /* Release FCP response complete queue */
5879         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5880                 lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
5881         kfree(phba->sli4_hba.fcp_cq);
5882         phba->sli4_hba.fcp_cq = NULL;
5883
5884         /* Release fast-path event queue */
5885         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
5886                 lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
5887         kfree(phba->sli4_hba.fp_eq);
5888         phba->sli4_hba.fp_eq = NULL;
5889
5890         /* Release slow-path event queue */
5891         lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
5892         phba->sli4_hba.sp_eq = NULL;
5893
5894         return;
5895 }
5896
5897 /**
5898  * lpfc_sli4_queue_setup - Set up all the SLI4 queues
5899  * @phba: pointer to lpfc hba data structure.
5900  *
5901  * This routine is invoked to set up all the SLI4 queues for the FCoE HBA
5902  * operation.
5903  *
5904  * Return codes
5905  *      0 - successful
5906  *      ENOMEM - No availble memory
5907  *      EIO - The mailbox failed to complete successfully.
5908  **/
5909 int
5910 lpfc_sli4_queue_setup(struct lpfc_hba *phba)
5911 {
5912         int rc = -ENOMEM;
5913         int fcp_eqidx, fcp_cqidx, fcp_wqidx;
5914         int fcp_cq_index = 0;
5915
5916         /*
5917          * Set up Event Queues (EQs)
5918          */
5919
5920         /* Set up slow-path event queue */
5921         if (!phba->sli4_hba.sp_eq) {
5922                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5923                                 "0520 Slow-path EQ not allocated\n");
5924                 goto out_error;
5925         }
5926         rc = lpfc_eq_create(phba, phba->sli4_hba.sp_eq,
5927                             LPFC_SP_DEF_IMAX);
5928         if (rc) {
5929                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5930                                 "0521 Failed setup of slow-path EQ: "
5931                                 "rc = 0x%x\n", rc);
5932                 goto out_error;
5933         }
5934         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5935                         "2583 Slow-path EQ setup: queue-id=%d\n",
5936                         phba->sli4_hba.sp_eq->queue_id);
5937
5938         /* Set up fast-path event queue */
5939         for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
5940                 if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
5941                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5942                                         "0522 Fast-path EQ (%d) not "
5943                                         "allocated\n", fcp_eqidx);
5944                         goto out_destroy_fp_eq;
5945                 }
5946                 rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
5947                                     phba->cfg_fcp_imax);
5948                 if (rc) {
5949                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5950                                         "0523 Failed setup of fast-path EQ "
5951                                         "(%d), rc = 0x%x\n", fcp_eqidx, rc);
5952                         goto out_destroy_fp_eq;
5953                 }
5954                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5955                                 "2584 Fast-path EQ setup: "
5956                                 "queue[%d]-id=%d\n", fcp_eqidx,
5957                                 phba->sli4_hba.fp_eq[fcp_eqidx]->queue_id);
5958         }
5959
5960         /*
5961          * Set up Complete Queues (CQs)
5962          */
5963
5964         /* Set up slow-path MBOX Complete Queue as the first CQ */
5965         if (!phba->sli4_hba.mbx_cq) {
5966                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5967                                 "0528 Mailbox CQ not allocated\n");
5968                 goto out_destroy_fp_eq;
5969         }
5970         rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
5971                             LPFC_MCQ, LPFC_MBOX);
5972         if (rc) {
5973                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5974                                 "0529 Failed setup of slow-path mailbox CQ: "
5975                                 "rc = 0x%x\n", rc);
5976                 goto out_destroy_fp_eq;
5977         }
5978         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5979                         "2585 MBX CQ setup: cq-id=%d, parent eq-id=%d\n",
5980                         phba->sli4_hba.mbx_cq->queue_id,
5981                         phba->sli4_hba.sp_eq->queue_id);
5982
5983         /* Set up slow-path ELS Complete Queue */
5984         if (!phba->sli4_hba.els_cq) {
5985                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5986                                 "0530 ELS CQ not allocated\n");
5987                 goto out_destroy_mbx_cq;
5988         }
5989         rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
5990                             LPFC_WCQ, LPFC_ELS);
5991         if (rc) {
5992                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5993                                 "0531 Failed setup of slow-path ELS CQ: "
5994                                 "rc = 0x%x\n", rc);
5995                 goto out_destroy_mbx_cq;
5996         }
5997         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
5998                         "2586 ELS CQ setup: cq-id=%d, parent eq-id=%d\n",
5999                         phba->sli4_hba.els_cq->queue_id,
6000                         phba->sli4_hba.sp_eq->queue_id);
6001
6002         /* Set up fast-path FCP Response Complete Queue */
6003         for (fcp_cqidx = 0; fcp_cqidx < phba->cfg_fcp_eq_count; fcp_cqidx++) {
6004                 if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
6005                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6006                                         "0526 Fast-path FCP CQ (%d) not "
6007                                         "allocated\n", fcp_cqidx);
6008                         goto out_destroy_fcp_cq;
6009                 }
6010                 rc = lpfc_cq_create(phba, phba->sli4_hba.fcp_cq[fcp_cqidx],
6011                                     phba->sli4_hba.fp_eq[fcp_cqidx],
6012                                     LPFC_WCQ, LPFC_FCP);
6013                 if (rc) {
6014                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6015                                         "0527 Failed setup of fast-path FCP "
6016                                         "CQ (%d), rc = 0x%x\n", fcp_cqidx, rc);
6017                         goto out_destroy_fcp_cq;
6018                 }
6019                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6020                                 "2588 FCP CQ setup: cq[%d]-id=%d, "
6021                                 "parent eq[%d]-id=%d\n",
6022                                 fcp_cqidx,
6023                                 phba->sli4_hba.fcp_cq[fcp_cqidx]->queue_id,
6024                                 fcp_cqidx,
6025                                 phba->sli4_hba.fp_eq[fcp_cqidx]->queue_id);
6026         }
6027
6028         /*
6029          * Set up all the Work Queues (WQs)
6030          */
6031
6032         /* Set up Mailbox Command Queue */
6033         if (!phba->sli4_hba.mbx_wq) {
6034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6035                                 "0538 Slow-path MQ not allocated\n");
6036                 goto out_destroy_fcp_cq;
6037         }
6038         rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
6039                             phba->sli4_hba.mbx_cq, LPFC_MBOX);
6040         if (rc) {
6041                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6042                                 "0539 Failed setup of slow-path MQ: "
6043                                 "rc = 0x%x\n", rc);
6044                 goto out_destroy_fcp_cq;
6045         }
6046         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6047                         "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n",
6048                         phba->sli4_hba.mbx_wq->queue_id,
6049                         phba->sli4_hba.mbx_cq->queue_id);
6050
6051         /* Set up slow-path ELS Work Queue */
6052         if (!phba->sli4_hba.els_wq) {
6053                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6054                                 "0536 Slow-path ELS WQ not allocated\n");
6055                 goto out_destroy_mbx_wq;
6056         }
6057         rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
6058                             phba->sli4_hba.els_cq, LPFC_ELS);
6059         if (rc) {
6060                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6061                                 "0537 Failed setup of slow-path ELS WQ: "
6062                                 "rc = 0x%x\n", rc);
6063                 goto out_destroy_mbx_wq;
6064         }
6065         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6066                         "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n",
6067                         phba->sli4_hba.els_wq->queue_id,
6068                         phba->sli4_hba.els_cq->queue_id);
6069
6070         /* Set up fast-path FCP Work Queue */
6071         for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
6072                 if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
6073                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6074                                         "0534 Fast-path FCP WQ (%d) not "
6075                                         "allocated\n", fcp_wqidx);
6076                         goto out_destroy_fcp_wq;
6077                 }
6078                 rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
6079                                     phba->sli4_hba.fcp_cq[fcp_cq_index],
6080                                     LPFC_FCP);
6081                 if (rc) {
6082                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6083                                         "0535 Failed setup of fast-path FCP "
6084                                         "WQ (%d), rc = 0x%x\n", fcp_wqidx, rc);
6085                         goto out_destroy_fcp_wq;
6086                 }
6087                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6088                                 "2591 FCP WQ setup: wq[%d]-id=%d, "
6089                                 "parent cq[%d]-id=%d\n",
6090                                 fcp_wqidx,
6091                                 phba->sli4_hba.fcp_wq[fcp_wqidx]->queue_id,
6092                                 fcp_cq_index,
6093                                 phba->sli4_hba.fcp_cq[fcp_cq_index]->queue_id);
6094                 /* Round robin FCP Work Queue's Completion Queue assignment */
6095                 fcp_cq_index = ((fcp_cq_index + 1) % phba->cfg_fcp_eq_count);
6096         }
6097
6098         /*
6099          * Create Receive Queue (RQ)
6100          */
6101         if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
6102                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6103                                 "0540 Receive Queue not allocated\n");
6104                 goto out_destroy_fcp_wq;
6105         }
6106         rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
6107                             phba->sli4_hba.els_cq, LPFC_USOL);
6108         if (rc) {
6109                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6110                                 "0541 Failed setup of Receive Queue: "
6111                                 "rc = 0x%x\n", rc);
6112                 goto out_destroy_fcp_wq;
6113         }
6114         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6115                         "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d "
6116                         "parent cq-id=%d\n",
6117                         phba->sli4_hba.hdr_rq->queue_id,
6118                         phba->sli4_hba.dat_rq->queue_id,
6119                         phba->sli4_hba.els_cq->queue_id);
6120         return 0;
6121
6122 out_destroy_fcp_wq:
6123         for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
6124                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
6125         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6126 out_destroy_mbx_wq:
6127         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6128 out_destroy_fcp_cq:
6129         for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
6130                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
6131         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6132 out_destroy_mbx_cq:
6133         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6134 out_destroy_fp_eq:
6135         for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
6136                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
6137         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6138 out_error:
6139         return rc;
6140 }
6141
6142 /**
6143  * lpfc_sli4_queue_unset - Unset all the SLI4 queues
6144  * @phba: pointer to lpfc hba data structure.
6145  *
6146  * This routine is invoked to unset all the SLI4 queues with the FCoE HBA
6147  * operation.
6148  *
6149  * Return codes
6150  *      0 - successful
6151  *      ENOMEM - No availble memory
6152  *      EIO - The mailbox failed to complete successfully.
6153  **/
6154 void
6155 lpfc_sli4_queue_unset(struct lpfc_hba *phba)
6156 {
6157         int fcp_qidx;
6158
6159         /* Unset mailbox command work queue */
6160         lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
6161         /* Unset ELS work queue */
6162         lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
6163         /* Unset unsolicited receive queue */
6164         lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
6165         /* Unset FCP work queue */
6166         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
6167                 lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_qidx]);
6168         /* Unset mailbox command complete queue */
6169         lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
6170         /* Unset ELS complete queue */
6171         lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
6172         /* Unset FCP response complete queue */
6173         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6174                 lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
6175         /* Unset fast-path event queue */
6176         for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
6177                 lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
6178         /* Unset slow-path event queue */
6179         lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
6180 }
6181
6182 /**
6183  * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool
6184  * @phba: pointer to lpfc hba data structure.
6185  *
6186  * This routine is invoked to allocate and set up a pool of completion queue
6187  * events. The body of the completion queue event is a completion queue entry
6188  * CQE. For now, this pool is used for the interrupt service routine to queue
6189  * the following HBA completion queue events for the worker thread to process:
6190  *   - Mailbox asynchronous events
6191  *   - Receive queue completion unsolicited events
6192  * Later, this can be used for all the slow-path events.
6193  *
6194  * Return codes
6195  *      0 - successful
6196  *      -ENOMEM - No availble memory
6197  **/
6198 static int
6199 lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba)
6200 {
6201         struct lpfc_cq_event *cq_event;
6202         int i;
6203
6204         for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) {
6205                 cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL);
6206                 if (!cq_event)
6207                         goto out_pool_create_fail;
6208                 list_add_tail(&cq_event->list,
6209                               &phba->sli4_hba.sp_cqe_event_pool);
6210         }
6211         return 0;
6212
6213 out_pool_create_fail:
6214         lpfc_sli4_cq_event_pool_destroy(phba);
6215         return -ENOMEM;
6216 }
6217
6218 /**
6219  * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool
6220  * @phba: pointer to lpfc hba data structure.
6221  *
6222  * This routine is invoked to free the pool of completion queue events at
6223  * driver unload time. Note that, it is the responsibility of the driver
6224  * cleanup routine to free all the outstanding completion-queue events
6225  * allocated from this pool back into the pool before invoking this routine
6226  * to destroy the pool.
6227  **/
6228 static void
6229 lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba)
6230 {
6231         struct lpfc_cq_event *cq_event, *next_cq_event;
6232
6233         list_for_each_entry_safe(cq_event, next_cq_event,
6234                                  &phba->sli4_hba.sp_cqe_event_pool, list) {
6235                 list_del(&cq_event->list);
6236                 kfree(cq_event);
6237         }
6238 }
6239
6240 /**
6241  * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6242  * @phba: pointer to lpfc hba data structure.
6243  *
6244  * This routine is the lock free version of the API invoked to allocate a
6245  * completion-queue event from the free pool.
6246  *
6247  * Return: Pointer to the newly allocated completion-queue event if successful
6248  *         NULL otherwise.
6249  **/
6250 struct lpfc_cq_event *
6251 __lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6252 {
6253         struct lpfc_cq_event *cq_event = NULL;
6254
6255         list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event,
6256                          struct lpfc_cq_event, list);
6257         return cq_event;
6258 }
6259
6260 /**
6261  * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool
6262  * @phba: pointer to lpfc hba data structure.
6263  *
6264  * This routine is the lock version of the API invoked to allocate a
6265  * completion-queue event from the free pool.
6266  *
6267  * Return: Pointer to the newly allocated completion-queue event if successful
6268  *         NULL otherwise.
6269  **/
6270 struct lpfc_cq_event *
6271 lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba)
6272 {
6273         struct lpfc_cq_event *cq_event;
6274         unsigned long iflags;
6275
6276         spin_lock_irqsave(&phba->hbalock, iflags);
6277         cq_event = __lpfc_sli4_cq_event_alloc(phba);
6278         spin_unlock_irqrestore(&phba->hbalock, iflags);
6279         return cq_event;
6280 }
6281
6282 /**
6283  * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6284  * @phba: pointer to lpfc hba data structure.
6285  * @cq_event: pointer to the completion queue event to be freed.
6286  *
6287  * This routine is the lock free version of the API invoked to release a
6288  * completion-queue event back into the free pool.
6289  **/
6290 void
6291 __lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6292                              struct lpfc_cq_event *cq_event)
6293 {
6294         list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool);
6295 }
6296
6297 /**
6298  * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool
6299  * @phba: pointer to lpfc hba data structure.
6300  * @cq_event: pointer to the completion queue event to be freed.
6301  *
6302  * This routine is the lock version of the API invoked to release a
6303  * completion-queue event back into the free pool.
6304  **/
6305 void
6306 lpfc_sli4_cq_event_release(struct lpfc_hba *phba,
6307                            struct lpfc_cq_event *cq_event)
6308 {
6309         unsigned long iflags;
6310         spin_lock_irqsave(&phba->hbalock, iflags);
6311         __lpfc_sli4_cq_event_release(phba, cq_event);
6312         spin_unlock_irqrestore(&phba->hbalock, iflags);
6313 }
6314
6315 /**
6316  * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool
6317  * @phba: pointer to lpfc hba data structure.
6318  *
6319  * This routine is to free all the pending completion-queue events to the
6320  * back into the free pool for device reset.
6321  **/
6322 static void
6323 lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba)
6324 {
6325         LIST_HEAD(cqelist);
6326         struct lpfc_cq_event *cqe;
6327         unsigned long iflags;
6328
6329         /* Retrieve all the pending WCQEs from pending WCQE lists */
6330         spin_lock_irqsave(&phba->hbalock, iflags);
6331         /* Pending FCP XRI abort events */
6332         list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
6333                          &cqelist);
6334         /* Pending ELS XRI abort events */
6335         list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
6336                          &cqelist);
6337         /* Pending asynnc events */
6338         list_splice_init(&phba->sli4_hba.sp_asynce_work_queue,
6339                          &cqelist);
6340         spin_unlock_irqrestore(&phba->hbalock, iflags);
6341
6342         while (!list_empty(&cqelist)) {
6343                 list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list);
6344                 lpfc_sli4_cq_event_release(phba, cqe);
6345         }
6346 }
6347
6348 /**
6349  * lpfc_pci_function_reset - Reset pci function.
6350  * @phba: pointer to lpfc hba data structure.
6351  *
6352  * This routine is invoked to request a PCI function reset. It will destroys
6353  * all resources assigned to the PCI function which originates this request.
6354  *
6355  * Return codes
6356  *      0 - successful
6357  *      ENOMEM - No availble memory
6358  *      EIO - The mailbox failed to complete successfully.
6359  **/
6360 int
6361 lpfc_pci_function_reset(struct lpfc_hba *phba)
6362 {
6363         LPFC_MBOXQ_t *mboxq;
6364         uint32_t rc = 0;
6365         uint32_t shdr_status, shdr_add_status;
6366         union lpfc_sli4_cfg_shdr *shdr;
6367
6368         mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6369         if (!mboxq) {
6370                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6371                                 "0494 Unable to allocate memory for issuing "
6372                                 "SLI_FUNCTION_RESET mailbox command\n");
6373                 return -ENOMEM;
6374         }
6375
6376         /* Set up PCI function reset SLI4_CONFIG mailbox-ioctl command */
6377         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6378                          LPFC_MBOX_OPCODE_FUNCTION_RESET, 0,
6379                          LPFC_SLI4_MBX_EMBED);
6380         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6381         shdr = (union lpfc_sli4_cfg_shdr *)
6382                 &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6383         shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6384         shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
6385         if (rc != MBX_TIMEOUT)
6386                 mempool_free(mboxq, phba->mbox_mem_pool);
6387         if (shdr_status || shdr_add_status || rc) {
6388                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6389                                 "0495 SLI_FUNCTION_RESET mailbox failed with "
6390                                 "status x%x add_status x%x, mbx status x%x\n",
6391                                 shdr_status, shdr_add_status, rc);
6392                 rc = -ENXIO;
6393         }
6394         return rc;
6395 }
6396
6397 /**
6398  * lpfc_sli4_send_nop_mbox_cmds - Send sli-4 nop mailbox commands
6399  * @phba: pointer to lpfc hba data structure.
6400  * @cnt: number of nop mailbox commands to send.
6401  *
6402  * This routine is invoked to send a number @cnt of NOP mailbox command and
6403  * wait for each command to complete.
6404  *
6405  * Return: the number of NOP mailbox command completed.
6406  **/
6407 static int
6408 lpfc_sli4_send_nop_mbox_cmds(struct lpfc_hba *phba, uint32_t cnt)
6409 {
6410         LPFC_MBOXQ_t *mboxq;
6411         int length, cmdsent;
6412         uint32_t mbox_tmo;
6413         uint32_t rc = 0;
6414         uint32_t shdr_status, shdr_add_status;
6415         union lpfc_sli4_cfg_shdr *shdr;
6416
6417         if (cnt == 0) {
6418                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6419                                 "2518 Requested to send 0 NOP mailbox cmd\n");
6420                 return cnt;
6421         }
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                                 "2519 Unable to allocate memory for issuing "
6427                                 "NOP mailbox command\n");
6428                 return 0;
6429         }
6430
6431         /* Set up NOP SLI4_CONFIG mailbox-ioctl command */
6432         length = (sizeof(struct lpfc_mbx_nop) -
6433                   sizeof(struct lpfc_sli4_cfg_mhdr));
6434         lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
6435                          LPFC_MBOX_OPCODE_NOP, length, LPFC_SLI4_MBX_EMBED);
6436
6437         mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6438         for (cmdsent = 0; cmdsent < cnt; cmdsent++) {
6439                 if (!phba->sli4_hba.intr_enable)
6440                         rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6441                 else
6442                         rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
6443                 if (rc == MBX_TIMEOUT)
6444                         break;
6445                 /* Check return status */
6446                 shdr = (union lpfc_sli4_cfg_shdr *)
6447                         &mboxq->u.mqe.un.sli4_config.header.cfg_shdr;
6448                 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
6449                 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
6450                                          &shdr->response);
6451                 if (shdr_status || shdr_add_status || rc) {
6452                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6453                                         "2520 NOP mailbox command failed "
6454                                         "status x%x add_status x%x mbx "
6455                                         "status x%x\n", shdr_status,
6456                                         shdr_add_status, rc);
6457                         break;
6458                 }
6459         }
6460
6461         if (rc != MBX_TIMEOUT)
6462                 mempool_free(mboxq, phba->mbox_mem_pool);
6463
6464         return cmdsent;
6465 }
6466
6467 /**
6468  * lpfc_sli4_fcfi_unreg - Unregister fcfi to device
6469  * @phba: pointer to lpfc hba data structure.
6470  * @fcfi: fcf index.
6471  *
6472  * This routine is invoked to unregister a FCFI from device.
6473  **/
6474 void
6475 lpfc_sli4_fcfi_unreg(struct lpfc_hba *phba, uint16_t fcfi)
6476 {
6477         LPFC_MBOXQ_t *mbox;
6478         uint32_t mbox_tmo;
6479         int rc;
6480         unsigned long flags;
6481
6482         mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6483
6484         if (!mbox)
6485                 return;
6486
6487         lpfc_unreg_fcfi(mbox, fcfi);
6488
6489         if (!phba->sli4_hba.intr_enable)
6490                 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6491         else {
6492                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
6493                 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6494         }
6495         if (rc != MBX_TIMEOUT)
6496                 mempool_free(mbox, phba->mbox_mem_pool);
6497         if (rc != MBX_SUCCESS)
6498                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6499                                 "2517 Unregister FCFI command failed "
6500                                 "status %d, mbxStatus x%x\n", rc,
6501                                 bf_get(lpfc_mqe_status, &mbox->u.mqe));
6502         else {
6503                 spin_lock_irqsave(&phba->hbalock, flags);
6504                 /* Mark the FCFI is no longer registered */
6505                 phba->fcf.fcf_flag &=
6506                         ~(FCF_AVAILABLE | FCF_REGISTERED | FCF_SCAN_DONE);
6507                 spin_unlock_irqrestore(&phba->hbalock, flags);
6508         }
6509 }
6510
6511 /**
6512  * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space.
6513  * @phba: pointer to lpfc hba data structure.
6514  *
6515  * This routine is invoked to set up the PCI device memory space for device
6516  * with SLI-4 interface spec.
6517  *
6518  * Return codes
6519  *      0 - successful
6520  *      other values - error
6521  **/
6522 static int
6523 lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba)
6524 {
6525         struct pci_dev *pdev;
6526         unsigned long bar0map_len, bar1map_len, bar2map_len;
6527         int error = -ENODEV;
6528
6529         /* Obtain PCI device reference */
6530         if (!phba->pcidev)
6531                 return error;
6532         else
6533                 pdev = phba->pcidev;
6534
6535         /* Set the device DMA mask size */
6536         if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0
6537          || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) {
6538                 if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0
6539                  || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) {
6540                         return error;
6541                 }
6542         }
6543
6544         /* Get the bus address of SLI4 device Bar0, Bar1, and Bar2 and the
6545          * number of bytes required by each mapping. They are actually
6546          * mapping to the PCI BAR regions 0 or 1, 2, and 4 by the SLI4 device.
6547          */
6548         if (pci_resource_start(pdev, 0)) {
6549                 phba->pci_bar0_map = pci_resource_start(pdev, 0);
6550                 bar0map_len = pci_resource_len(pdev, 0);
6551         } else {
6552                 phba->pci_bar0_map = pci_resource_start(pdev, 1);
6553                 bar0map_len = pci_resource_len(pdev, 1);
6554         }
6555         phba->pci_bar1_map = pci_resource_start(pdev, 2);
6556         bar1map_len = pci_resource_len(pdev, 2);
6557
6558         phba->pci_bar2_map = pci_resource_start(pdev, 4);
6559         bar2map_len = pci_resource_len(pdev, 4);
6560
6561         /* Map SLI4 PCI Config Space Register base to a kernel virtual addr */
6562         phba->sli4_hba.conf_regs_memmap_p =
6563                                 ioremap(phba->pci_bar0_map, bar0map_len);
6564         if (!phba->sli4_hba.conf_regs_memmap_p) {
6565                 dev_printk(KERN_ERR, &pdev->dev,
6566                            "ioremap failed for SLI4 PCI config registers.\n");
6567                 goto out;
6568         }
6569
6570         /* Map SLI4 HBA Control Register base to a kernel virtual address. */
6571         phba->sli4_hba.ctrl_regs_memmap_p =
6572                                 ioremap(phba->pci_bar1_map, bar1map_len);
6573         if (!phba->sli4_hba.ctrl_regs_memmap_p) {
6574                 dev_printk(KERN_ERR, &pdev->dev,
6575                            "ioremap failed for SLI4 HBA control registers.\n");
6576                 goto out_iounmap_conf;
6577         }
6578
6579         /* Map SLI4 HBA Doorbell Register base to a kernel virtual address. */
6580         phba->sli4_hba.drbl_regs_memmap_p =
6581                                 ioremap(phba->pci_bar2_map, bar2map_len);
6582         if (!phba->sli4_hba.drbl_regs_memmap_p) {
6583                 dev_printk(KERN_ERR, &pdev->dev,
6584                            "ioremap failed for SLI4 HBA doorbell registers.\n");
6585                 goto out_iounmap_ctrl;
6586         }
6587
6588         /* Set up BAR0 PCI config space register memory map */
6589         lpfc_sli4_bar0_register_memmap(phba);
6590
6591         /* Set up BAR1 register memory map */
6592         lpfc_sli4_bar1_register_memmap(phba);
6593
6594         /* Set up BAR2 register memory map */
6595         error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0);
6596         if (error)
6597                 goto out_iounmap_all;
6598
6599         return 0;
6600
6601 out_iounmap_all:
6602         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6603 out_iounmap_ctrl:
6604         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6605 out_iounmap_conf:
6606         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6607 out:
6608         return error;
6609 }
6610
6611 /**
6612  * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space.
6613  * @phba: pointer to lpfc hba data structure.
6614  *
6615  * This routine is invoked to unset the PCI device memory space for device
6616  * with SLI-4 interface spec.
6617  **/
6618 static void
6619 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
6620 {
6621         struct pci_dev *pdev;
6622
6623         /* Obtain PCI device reference */
6624         if (!phba->pcidev)
6625                 return;
6626         else
6627                 pdev = phba->pcidev;
6628
6629         /* Free coherent DMA memory allocated */
6630
6631         /* Unmap I/O memory space */
6632         iounmap(phba->sli4_hba.drbl_regs_memmap_p);
6633         iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
6634         iounmap(phba->sli4_hba.conf_regs_memmap_p);
6635
6636         return;
6637 }
6638
6639 /**
6640  * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device
6641  * @phba: pointer to lpfc hba data structure.
6642  *
6643  * This routine is invoked to enable the MSI-X interrupt vectors to device
6644  * with SLI-3 interface specs. The kernel function pci_enable_msix() is
6645  * called to enable the MSI-X vectors. Note that pci_enable_msix(), once
6646  * invoked, enables either all or nothing, depending on the current
6647  * availability of PCI vector resources. The device driver is responsible
6648  * for calling the individual request_irq() to register each MSI-X vector
6649  * with a interrupt handler, which is done in this function. Note that
6650  * later when device is unloading, the driver should always call free_irq()
6651  * on all MSI-X vectors it has done request_irq() on before calling
6652  * pci_disable_msix(). Failure to do so results in a BUG_ON() and a device
6653  * will be left with MSI-X enabled and leaks its vectors.
6654  *
6655  * Return codes
6656  *   0 - successful
6657  *   other values - error
6658  **/
6659 static int
6660 lpfc_sli_enable_msix(struct lpfc_hba *phba)
6661 {
6662         int rc, i;
6663         LPFC_MBOXQ_t *pmb;
6664
6665         /* Set up MSI-X multi-message vectors */
6666         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6667                 phba->msix_entries[i].entry = i;
6668
6669         /* Configure MSI-X capability structure */
6670         rc = pci_enable_msix(phba->pcidev, phba->msix_entries,
6671                                 ARRAY_SIZE(phba->msix_entries));
6672         if (rc) {
6673                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6674                                 "0420 PCI enable MSI-X failed (%d)\n", rc);
6675                 goto msi_fail_out;
6676         }
6677         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6678                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6679                                 "0477 MSI-X entry[%d]: vector=x%x "
6680                                 "message=%d\n", i,
6681                                 phba->msix_entries[i].vector,
6682                                 phba->msix_entries[i].entry);
6683         /*
6684          * Assign MSI-X vectors to interrupt handlers
6685          */
6686
6687         /* vector-0 is associated to slow-path handler */
6688         rc = request_irq(phba->msix_entries[0].vector,
6689                          &lpfc_sli_sp_intr_handler, IRQF_SHARED,
6690                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6691         if (rc) {
6692                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6693                                 "0421 MSI-X slow-path request_irq failed "
6694                                 "(%d)\n", rc);
6695                 goto msi_fail_out;
6696         }
6697
6698         /* vector-1 is associated to fast-path handler */
6699         rc = request_irq(phba->msix_entries[1].vector,
6700                          &lpfc_sli_fp_intr_handler, IRQF_SHARED,
6701                          LPFC_FP_DRIVER_HANDLER_NAME, phba);
6702
6703         if (rc) {
6704                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6705                                 "0429 MSI-X fast-path request_irq failed "
6706                                 "(%d)\n", rc);
6707                 goto irq_fail_out;
6708         }
6709
6710         /*
6711          * Configure HBA MSI-X attention conditions to messages
6712          */
6713         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6714
6715         if (!pmb) {
6716                 rc = -ENOMEM;
6717                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6718                                 "0474 Unable to allocate memory for issuing "
6719                                 "MBOX_CONFIG_MSI command\n");
6720                 goto mem_fail_out;
6721         }
6722         rc = lpfc_config_msi(phba, pmb);
6723         if (rc)
6724                 goto mbx_fail_out;
6725         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
6726         if (rc != MBX_SUCCESS) {
6727                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
6728                                 "0351 Config MSI mailbox command failed, "
6729                                 "mbxCmd x%x, mbxStatus x%x\n",
6730                                 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus);
6731                 goto mbx_fail_out;
6732         }
6733
6734         /* Free memory allocated for mailbox command */
6735         mempool_free(pmb, phba->mbox_mem_pool);
6736         return rc;
6737
6738 mbx_fail_out:
6739         /* Free memory allocated for mailbox command */
6740         mempool_free(pmb, phba->mbox_mem_pool);
6741
6742 mem_fail_out:
6743         /* free the irq already requested */
6744         free_irq(phba->msix_entries[1].vector, phba);
6745
6746 irq_fail_out:
6747         /* free the irq already requested */
6748         free_irq(phba->msix_entries[0].vector, phba);
6749
6750 msi_fail_out:
6751         /* Unconfigure MSI-X capability structure */
6752         pci_disable_msix(phba->pcidev);
6753         return rc;
6754 }
6755
6756 /**
6757  * lpfc_sli_disable_msix - Disable MSI-X interrupt mode on SLI-3 device.
6758  * @phba: pointer to lpfc hba data structure.
6759  *
6760  * This routine is invoked to release the MSI-X vectors and then disable the
6761  * MSI-X interrupt mode to device with SLI-3 interface spec.
6762  **/
6763 static void
6764 lpfc_sli_disable_msix(struct lpfc_hba *phba)
6765 {
6766         int i;
6767
6768         /* Free up MSI-X multi-message vectors */
6769         for (i = 0; i < LPFC_MSIX_VECTORS; i++)
6770                 free_irq(phba->msix_entries[i].vector, phba);
6771         /* Disable MSI-X */
6772         pci_disable_msix(phba->pcidev);
6773
6774         return;
6775 }
6776
6777 /**
6778  * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device.
6779  * @phba: pointer to lpfc hba data structure.
6780  *
6781  * This routine is invoked to enable the MSI interrupt mode to device with
6782  * SLI-3 interface spec. The kernel function pci_enable_msi() is called to
6783  * enable the MSI vector. The device driver is responsible for calling the
6784  * request_irq() to register MSI vector with a interrupt the handler, which
6785  * is done in this function.
6786  *
6787  * Return codes
6788  *      0 - successful
6789  *      other values - error
6790  */
6791 static int
6792 lpfc_sli_enable_msi(struct lpfc_hba *phba)
6793 {
6794         int rc;
6795
6796         rc = pci_enable_msi(phba->pcidev);
6797         if (!rc)
6798                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6799                                 "0462 PCI enable MSI mode success.\n");
6800         else {
6801                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6802                                 "0471 PCI enable MSI mode failed (%d)\n", rc);
6803                 return rc;
6804         }
6805
6806         rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6807                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6808         if (rc) {
6809                 pci_disable_msi(phba->pcidev);
6810                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6811                                 "0478 MSI request_irq failed (%d)\n", rc);
6812         }
6813         return rc;
6814 }
6815
6816 /**
6817  * lpfc_sli_disable_msi - Disable MSI interrupt mode to SLI-3 device.
6818  * @phba: pointer to lpfc hba data structure.
6819  *
6820  * This routine is invoked to disable the MSI interrupt mode to device with
6821  * SLI-3 interface spec. The driver calls free_irq() on MSI vector it has
6822  * done request_irq() on before calling pci_disable_msi(). Failure to do so
6823  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
6824  * its vector.
6825  */
6826 static void
6827 lpfc_sli_disable_msi(struct lpfc_hba *phba)
6828 {
6829         free_irq(phba->pcidev->irq, phba);
6830         pci_disable_msi(phba->pcidev);
6831         return;
6832 }
6833
6834 /**
6835  * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device.
6836  * @phba: pointer to lpfc hba data structure.
6837  *
6838  * This routine is invoked to enable device interrupt and associate driver's
6839  * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface
6840  * spec. Depends on the interrupt mode configured to the driver, the driver
6841  * will try to fallback from the configured interrupt mode to an interrupt
6842  * mode which is supported by the platform, kernel, and device in the order
6843  * of:
6844  * MSI-X -> MSI -> IRQ.
6845  *
6846  * Return codes
6847  *   0 - successful
6848  *   other values - error
6849  **/
6850 static uint32_t
6851 lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
6852 {
6853         uint32_t intr_mode = LPFC_INTR_ERROR;
6854         int retval;
6855
6856         if (cfg_mode == 2) {
6857                 /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */
6858                 retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3);
6859                 if (!retval) {
6860                         /* Now, try to enable MSI-X interrupt mode */
6861                         retval = lpfc_sli_enable_msix(phba);
6862                         if (!retval) {
6863                                 /* Indicate initialization to MSI-X mode */
6864                                 phba->intr_type = MSIX;
6865                                 intr_mode = 2;
6866                         }
6867                 }
6868         }
6869
6870         /* Fallback to MSI if MSI-X initialization failed */
6871         if (cfg_mode >= 1 && phba->intr_type == NONE) {
6872                 retval = lpfc_sli_enable_msi(phba);
6873                 if (!retval) {
6874                         /* Indicate initialization to MSI mode */
6875                         phba->intr_type = MSI;
6876                         intr_mode = 1;
6877                 }
6878         }
6879
6880         /* Fallback to INTx if both MSI-X/MSI initalization failed */
6881         if (phba->intr_type == NONE) {
6882                 retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler,
6883                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
6884                 if (!retval) {
6885                         /* Indicate initialization to INTx mode */
6886                         phba->intr_type = INTx;
6887                         intr_mode = 0;
6888                 }
6889         }
6890         return intr_mode;
6891 }
6892
6893 /**
6894  * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device.
6895  * @phba: pointer to lpfc hba data structure.
6896  *
6897  * This routine is invoked to disable device interrupt and disassociate the
6898  * driver's interrupt handler(s) from interrupt vector(s) to device with
6899  * SLI-3 interface spec. Depending on the interrupt mode, the driver will
6900  * release the interrupt vector(s) for the message signaled interrupt.
6901  **/
6902 static void
6903 lpfc_sli_disable_intr(struct lpfc_hba *phba)
6904 {
6905         /* Disable the currently initialized interrupt mode */
6906         if (phba->intr_type == MSIX)
6907                 lpfc_sli_disable_msix(phba);
6908         else if (phba->intr_type == MSI)
6909                 lpfc_sli_disable_msi(phba);
6910         else if (phba->intr_type == INTx)
6911                 free_irq(phba->pcidev->irq, phba);
6912
6913         /* Reset interrupt management states */
6914         phba->intr_type = NONE;
6915         phba->sli.slistat.sli_intr = 0;
6916
6917         return;
6918 }
6919
6920 /**
6921  * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device
6922  * @phba: pointer to lpfc hba data structure.
6923  *
6924  * This routine is invoked to enable the MSI-X interrupt vectors to device
6925  * with SLI-4 interface spec. The kernel function pci_enable_msix() is called
6926  * to enable the MSI-X vectors. Note that pci_enable_msix(), once invoked,
6927  * enables either all or nothing, depending on the current availability of
6928  * PCI vector resources. The device driver is responsible for calling the
6929  * individual request_irq() to register each MSI-X vector with a interrupt
6930  * handler, which is done in this function. Note that later when device is
6931  * unloading, the driver should always call free_irq() on all MSI-X vectors
6932  * it has done request_irq() on before calling pci_disable_msix(). Failure
6933  * to do so results in a BUG_ON() and a device will be left with MSI-X
6934  * enabled and leaks its vectors.
6935  *
6936  * Return codes
6937  * 0 - successful
6938  * other values - error
6939  **/
6940 static int
6941 lpfc_sli4_enable_msix(struct lpfc_hba *phba)
6942 {
6943         int rc, index;
6944
6945         /* Set up MSI-X multi-message vectors */
6946         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6947                 phba->sli4_hba.msix_entries[index].entry = index;
6948
6949         /* Configure MSI-X capability structure */
6950         rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
6951                              phba->sli4_hba.cfg_eqn);
6952         if (rc) {
6953                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6954                                 "0484 PCI enable MSI-X failed (%d)\n", rc);
6955                 goto msi_fail_out;
6956         }
6957         /* Log MSI-X vector assignment */
6958         for (index = 0; index < phba->sli4_hba.cfg_eqn; index++)
6959                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6960                                 "0489 MSI-X entry[%d]: vector=x%x "
6961                                 "message=%d\n", index,
6962                                 phba->sli4_hba.msix_entries[index].vector,
6963                                 phba->sli4_hba.msix_entries[index].entry);
6964         /*
6965          * Assign MSI-X vectors to interrupt handlers
6966          */
6967
6968         /* The first vector must associated to slow-path handler for MQ */
6969         rc = request_irq(phba->sli4_hba.msix_entries[0].vector,
6970                          &lpfc_sli4_sp_intr_handler, IRQF_SHARED,
6971                          LPFC_SP_DRIVER_HANDLER_NAME, phba);
6972         if (rc) {
6973                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6974                                 "0485 MSI-X slow-path request_irq failed "
6975                                 "(%d)\n", rc);
6976                 goto msi_fail_out;
6977         }
6978
6979         /* The rest of the vector(s) are associated to fast-path handler(s) */
6980         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++) {
6981                 phba->sli4_hba.fcp_eq_hdl[index - 1].idx = index - 1;
6982                 phba->sli4_hba.fcp_eq_hdl[index - 1].phba = phba;
6983                 rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
6984                                  &lpfc_sli4_fp_intr_handler, IRQF_SHARED,
6985                                  LPFC_FP_DRIVER_HANDLER_NAME,
6986                                  &phba->sli4_hba.fcp_eq_hdl[index - 1]);
6987                 if (rc) {
6988                         lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6989                                         "0486 MSI-X fast-path (%d) "
6990                                         "request_irq failed (%d)\n", index, rc);
6991                         goto cfg_fail_out;
6992                 }
6993         }
6994
6995         return rc;
6996
6997 cfg_fail_out:
6998         /* free the irq already requested */
6999         for (--index; index >= 1; index--)
7000                 free_irq(phba->sli4_hba.msix_entries[index - 1].vector,
7001                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7002
7003         /* free the irq already requested */
7004         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7005
7006 msi_fail_out:
7007         /* Unconfigure MSI-X capability structure */
7008         pci_disable_msix(phba->pcidev);
7009         return rc;
7010 }
7011
7012 /**
7013  * lpfc_sli4_disable_msix - Disable MSI-X interrupt mode to SLI-4 device
7014  * @phba: pointer to lpfc hba data structure.
7015  *
7016  * This routine is invoked to release the MSI-X vectors and then disable the
7017  * MSI-X interrupt mode to device with SLI-4 interface spec.
7018  **/
7019 static void
7020 lpfc_sli4_disable_msix(struct lpfc_hba *phba)
7021 {
7022         int index;
7023
7024         /* Free up MSI-X multi-message vectors */
7025         free_irq(phba->sli4_hba.msix_entries[0].vector, phba);
7026
7027         for (index = 1; index < phba->sli4_hba.cfg_eqn; index++)
7028                 free_irq(phba->sli4_hba.msix_entries[index].vector,
7029                          &phba->sli4_hba.fcp_eq_hdl[index - 1]);
7030         /* Disable MSI-X */
7031         pci_disable_msix(phba->pcidev);
7032
7033         return;
7034 }
7035
7036 /**
7037  * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device
7038  * @phba: pointer to lpfc hba data structure.
7039  *
7040  * This routine is invoked to enable the MSI interrupt mode to device with
7041  * SLI-4 interface spec. The kernel function pci_enable_msi() is called
7042  * to enable the MSI vector. The device driver is responsible for calling
7043  * the request_irq() to register MSI vector with a interrupt the handler,
7044  * which is done in this function.
7045  *
7046  * Return codes
7047  *      0 - successful
7048  *      other values - error
7049  **/
7050 static int
7051 lpfc_sli4_enable_msi(struct lpfc_hba *phba)
7052 {
7053         int rc, index;
7054
7055         rc = pci_enable_msi(phba->pcidev);
7056         if (!rc)
7057                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7058                                 "0487 PCI enable MSI mode success.\n");
7059         else {
7060                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7061                                 "0488 PCI enable MSI mode failed (%d)\n", rc);
7062                 return rc;
7063         }
7064
7065         rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7066                          IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7067         if (rc) {
7068                 pci_disable_msi(phba->pcidev);
7069                 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
7070                                 "0490 MSI request_irq failed (%d)\n", rc);
7071         }
7072
7073         for (index = 0; index < phba->cfg_fcp_eq_count; index++) {
7074                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7075                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7076         }
7077
7078         return rc;
7079 }
7080
7081 /**
7082  * lpfc_sli4_disable_msi - Disable MSI interrupt mode to SLI-4 device
7083  * @phba: pointer to lpfc hba data structure.
7084  *
7085  * This routine is invoked to disable the MSI interrupt mode to device with
7086  * SLI-4 interface spec. The driver calls free_irq() on MSI vector it has
7087  * done request_irq() on before calling pci_disable_msi(). Failure to do so
7088  * results in a BUG_ON() and a device will be left with MSI enabled and leaks
7089  * its vector.
7090  **/
7091 static void
7092 lpfc_sli4_disable_msi(struct lpfc_hba *phba)
7093 {
7094         free_irq(phba->pcidev->irq, phba);
7095         pci_disable_msi(phba->pcidev);
7096         return;
7097 }
7098
7099 /**
7100  * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device
7101  * @phba: pointer to lpfc hba data structure.
7102  *
7103  * This routine is invoked to enable device interrupt and associate driver's
7104  * interrupt handler(s) to interrupt vector(s) to device with SLI-4
7105  * interface spec. Depends on the interrupt mode configured to the driver,
7106  * the driver will try to fallback from the configured interrupt mode to an
7107  * interrupt mode which is supported by the platform, kernel, and device in
7108  * the order of:
7109  * MSI-X -> MSI -> IRQ.
7110  *
7111  * Return codes
7112  *      0 - successful
7113  *      other values - error
7114  **/
7115 static uint32_t
7116 lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
7117 {
7118         uint32_t intr_mode = LPFC_INTR_ERROR;
7119         int retval, index;
7120
7121         if (cfg_mode == 2) {
7122                 /* Preparation before conf_msi mbox cmd */
7123                 retval = 0;
7124                 if (!retval) {
7125                         /* Now, try to enable MSI-X interrupt mode */
7126                         retval = lpfc_sli4_enable_msix(phba);
7127                         if (!retval) {
7128                                 /* Indicate initialization to MSI-X mode */
7129                                 phba->intr_type = MSIX;
7130                                 intr_mode = 2;
7131                         }
7132                 }
7133         }
7134
7135         /* Fallback to MSI if MSI-X initialization failed */
7136         if (cfg_mode >= 1 && phba->intr_type == NONE) {
7137                 retval = lpfc_sli4_enable_msi(phba);
7138                 if (!retval) {
7139                         /* Indicate initialization to MSI mode */
7140                         phba->intr_type = MSI;
7141                         intr_mode = 1;
7142                 }
7143         }
7144
7145         /* Fallback to INTx if both MSI-X/MSI initalization failed */
7146         if (phba->intr_type == NONE) {
7147                 retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler,
7148                                      IRQF_SHARED, LPFC_DRIVER_NAME, phba);
7149                 if (!retval) {
7150                         /* Indicate initialization to INTx mode */
7151                         phba->intr_type = INTx;
7152                         intr_mode = 0;
7153                         for (index = 0; index < phba->cfg_fcp_eq_count;
7154                              index++) {
7155                                 phba->sli4_hba.fcp_eq_hdl[index].idx = index;
7156                                 phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
7157                         }
7158                 }
7159         }
7160         return intr_mode;
7161 }
7162
7163 /**
7164  * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device
7165  * @phba: pointer to lpfc hba data structure.
7166  *
7167  * This routine is invoked to disable device interrupt and disassociate
7168  * the driver's interrupt handler(s) from interrupt vector(s) to device
7169  * with SLI-4 interface spec. Depending on the interrupt mode, the driver
7170  * will release the interrupt vector(s) for the message signaled interrupt.
7171  **/
7172 static void
7173 lpfc_sli4_disable_intr(struct lpfc_hba *phba)
7174 {
7175         /* Disable the currently initialized interrupt mode */
7176         if (phba->intr_type == MSIX)
7177                 lpfc_sli4_disable_msix(phba);
7178         else if (phba->intr_type == MSI)
7179                 lpfc_sli4_disable_msi(phba);
7180         else if (phba->intr_type == INTx)
7181                 free_irq(phba->pcidev->irq, phba);
7182
7183         /* Reset interrupt management states */
7184         phba->intr_type = NONE;
7185         phba->sli.slistat.sli_intr = 0;
7186
7187         return;
7188 }
7189
7190 /**
7191  * lpfc_unset_hba - Unset SLI3 hba device initialization
7192  * @phba: pointer to lpfc hba data structure.
7193  *
7194  * This routine is invoked to unset the HBA device initialization steps to
7195  * a device with SLI-3 interface spec.
7196  **/
7197 static void
7198 lpfc_unset_hba(struct lpfc_hba *phba)
7199 {
7200         struct lpfc_vport *vport = phba->pport;
7201         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7202
7203         spin_lock_irq(shost->host_lock);
7204         vport->load_flag |= FC_UNLOADING;
7205         spin_unlock_irq(shost->host_lock);
7206
7207         lpfc_stop_hba_timers(phba);
7208
7209         phba->pport->work_port_events = 0;
7210
7211         lpfc_sli_hba_down(phba);
7212
7213         lpfc_sli_brdrestart(phba);
7214
7215         lpfc_sli_disable_intr(phba);
7216
7217         return;
7218 }
7219
7220 /**
7221  * lpfc_sli4_unset_hba - Unset SLI4 hba device initialization.
7222  * @phba: pointer to lpfc hba data structure.
7223  *
7224  * This routine is invoked to unset the HBA device initialization steps to
7225  * a device with SLI-4 interface spec.
7226  **/
7227 static void
7228 lpfc_sli4_unset_hba(struct lpfc_hba *phba)
7229 {
7230         struct lpfc_vport *vport = phba->pport;
7231         struct Scsi_Host  *shost = lpfc_shost_from_vport(vport);
7232
7233         spin_lock_irq(shost->host_lock);
7234         vport->load_flag |= FC_UNLOADING;
7235         spin_unlock_irq(shost->host_lock);
7236
7237         phba->pport->work_port_events = 0;
7238
7239         lpfc_sli4_hba_down(phba);
7240
7241         lpfc_sli4_disable_intr(phba);
7242
7243         return;
7244 }
7245
7246 /**
7247  * lpfc_sli4_hba_unset - Unset the fcoe hba
7248  * @phba: Pointer to HBA context object.
7249  *
7250  * This function is called in the SLI4 code path to reset the HBA's FCoE
7251  * function. The caller is not required to hold any lock. This routine
7252  * issues PCI function reset mailbox command to reset the FCoE function.
7253  * At the end of the function, it calls lpfc_hba_down_post function to
7254  * free any pending commands.
7255  **/
7256 static void
7257 lpfc_sli4_hba_unset(struct lpfc_hba *phba)
7258 {
7259         int wait_cnt = 0;
7260         LPFC_MBOXQ_t *mboxq;
7261
7262         lpfc_stop_hba_timers(phba);
7263         phba->sli4_hba.intr_enable = 0;
7264
7265         /*
7266          * Gracefully wait out the potential current outstanding asynchronous
7267          * mailbox command.
7268          */
7269
7270         /* First, block any pending async mailbox command from posted */
7271         spin_lock_irq(&phba->hbalock);
7272         phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7273         spin_unlock_irq(&phba->hbalock);
7274         /* Now, trying to wait it out if we can */
7275         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7276                 msleep(10);
7277                 if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT)
7278                         break;
7279         }
7280         /* Forcefully release the outstanding mailbox command if timed out */
7281         if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7282                 spin_lock_irq(&phba->hbalock);
7283                 mboxq = phba->sli.mbox_active;
7284                 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7285                 __lpfc_mbox_cmpl_put(phba, mboxq);
7286                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7287                 phba->sli.mbox_active = NULL;
7288                 spin_unlock_irq(&phba->hbalock);
7289         }
7290
7291         /* Tear down the queues in the HBA */
7292         lpfc_sli4_queue_unset(phba);
7293
7294         /* Disable PCI subsystem interrupt */
7295         lpfc_sli4_disable_intr(phba);
7296
7297         /* Stop kthread signal shall trigger work_done one more time */
7298         kthread_stop(phba->worker_thread);
7299
7300         /* Stop the SLI4 device port */
7301         phba->pport->work_port_events = 0;
7302 }
7303
7304  /**
7305  * lpfc_pc_sli4_params_get - Get the SLI4_PARAMS port capabilities.
7306  * @phba: Pointer to HBA context object.
7307  * @mboxq: Pointer to the mailboxq memory for the mailbox command response.
7308  *
7309  * This function is called in the SLI4 code path to read the port's
7310  * sli4 capabilities.
7311  *
7312  * This function may be be called from any context that can block-wait
7313  * for the completion.  The expectation is that this routine is called
7314  * typically from probe_one or from the online routine.
7315  **/
7316 int
7317 lpfc_pc_sli4_params_get(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7318 {
7319         int rc;
7320         struct lpfc_mqe *mqe;
7321         struct lpfc_pc_sli4_params *sli4_params;
7322         uint32_t mbox_tmo;
7323
7324         rc = 0;
7325         mqe = &mboxq->u.mqe;
7326
7327         /* Read the port's SLI4 Parameters port capabilities */
7328         lpfc_sli4_params(mboxq);
7329         if (!phba->sli4_hba.intr_enable)
7330                 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
7331         else {
7332                 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_PORT_CAPABILITIES);
7333                 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
7334         }
7335
7336         if (unlikely(rc))
7337                 return 1;
7338
7339         sli4_params = &phba->sli4_hba.pc_sli4_params;
7340         sli4_params->if_type = bf_get(if_type, &mqe->un.sli4_params);
7341         sli4_params->sli_rev = bf_get(sli_rev, &mqe->un.sli4_params);
7342         sli4_params->sli_family = bf_get(sli_family, &mqe->un.sli4_params);
7343         sli4_params->featurelevel_1 = bf_get(featurelevel_1,
7344                                              &mqe->un.sli4_params);
7345         sli4_params->featurelevel_2 = bf_get(featurelevel_2,
7346                                              &mqe->un.sli4_params);
7347         sli4_params->proto_types = mqe->un.sli4_params.word3;
7348         sli4_params->sge_supp_len = mqe->un.sli4_params.sge_supp_len;
7349         sli4_params->if_page_sz = bf_get(if_page_sz, &mqe->un.sli4_params);
7350         sli4_params->rq_db_window = bf_get(rq_db_window, &mqe->un.sli4_params);
7351         sli4_params->loopbk_scope = bf_get(loopbk_scope, &mqe->un.sli4_params);
7352         sli4_params->eq_pages_max = bf_get(eq_pages, &mqe->un.sli4_params);
7353         sli4_params->eqe_size = bf_get(eqe_size, &mqe->un.sli4_params);
7354         sli4_params->cq_pages_max = bf_get(cq_pages, &mqe->un.sli4_params);
7355         sli4_params->cqe_size = bf_get(cqe_size, &mqe->un.sli4_params);
7356         sli4_params->mq_pages_max = bf_get(mq_pages, &mqe->un.sli4_params);
7357         sli4_params->mqe_size = bf_get(mqe_size, &mqe->un.sli4_params);
7358         sli4_params->mq_elem_cnt = bf_get(mq_elem_cnt, &mqe->un.sli4_params);
7359         sli4_params->wq_pages_max = bf_get(wq_pages, &mqe->un.sli4_params);
7360         sli4_params->wqe_size = bf_get(wqe_size, &mqe->un.sli4_params);
7361         sli4_params->rq_pages_max = bf_get(rq_pages, &mqe->un.sli4_params);
7362         sli4_params->rqe_size = bf_get(rqe_size, &mqe->un.sli4_params);
7363         sli4_params->hdr_pages_max = bf_get(hdr_pages, &mqe->un.sli4_params);
7364         sli4_params->hdr_size = bf_get(hdr_size, &mqe->un.sli4_params);
7365         sli4_params->hdr_pp_align = bf_get(hdr_pp_align, &mqe->un.sli4_params);
7366         sli4_params->sgl_pages_max = bf_get(sgl_pages, &mqe->un.sli4_params);
7367         sli4_params->sgl_pp_align = bf_get(sgl_pp_align, &mqe->un.sli4_params);
7368         return rc;
7369 }
7370
7371 /**
7372  * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem.
7373  * @pdev: pointer to PCI device
7374  * @pid: pointer to PCI device identifier
7375  *
7376  * This routine is to be called to attach a device with SLI-3 interface spec
7377  * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7378  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7379  * information of the device and driver to see if the driver state that it can
7380  * support this kind of device. If the match is successful, the driver core
7381  * invokes this routine. If this routine determines it can claim the HBA, it
7382  * does all the initialization that it needs to do to handle the HBA properly.
7383  *
7384  * Return code
7385  *      0 - driver can claim the device
7386  *      negative value - driver can not claim the device
7387  **/
7388 static int __devinit
7389 lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid)
7390 {
7391         struct lpfc_hba   *phba;
7392         struct lpfc_vport *vport = NULL;
7393         struct Scsi_Host  *shost = NULL;
7394         int error;
7395         uint32_t cfg_mode, intr_mode;
7396
7397         /* Allocate memory for HBA structure */
7398         phba = lpfc_hba_alloc(pdev);
7399         if (!phba)
7400                 return -ENOMEM;
7401
7402         /* Perform generic PCI device enabling operation */
7403         error = lpfc_enable_pci_dev(phba);
7404         if (error) {
7405                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7406                                 "1401 Failed to enable pci device.\n");
7407                 goto out_free_phba;
7408         }
7409
7410         /* Set up SLI API function jump table for PCI-device group-0 HBAs */
7411         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP);
7412         if (error)
7413                 goto out_disable_pci_dev;
7414
7415         /* Set up SLI-3 specific device PCI memory space */
7416         error = lpfc_sli_pci_mem_setup(phba);
7417         if (error) {
7418                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7419                                 "1402 Failed to set up pci memory space.\n");
7420                 goto out_disable_pci_dev;
7421         }
7422
7423         /* Set up phase-1 common device driver resources */
7424         error = lpfc_setup_driver_resource_phase1(phba);
7425         if (error) {
7426                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7427                                 "1403 Failed to set up driver resource.\n");
7428                 goto out_unset_pci_mem_s3;
7429         }
7430
7431         /* Set up SLI-3 specific device driver resources */
7432         error = lpfc_sli_driver_resource_setup(phba);
7433         if (error) {
7434                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7435                                 "1404 Failed to set up driver resource.\n");
7436                 goto out_unset_pci_mem_s3;
7437         }
7438
7439         /* Initialize and populate the iocb list per host */
7440         error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT);
7441         if (error) {
7442                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7443                                 "1405 Failed to initialize iocb list.\n");
7444                 goto out_unset_driver_resource_s3;
7445         }
7446
7447         /* Set up common device driver resources */
7448         error = lpfc_setup_driver_resource_phase2(phba);
7449         if (error) {
7450                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7451                                 "1406 Failed to set up driver resource.\n");
7452                 goto out_free_iocb_list;
7453         }
7454
7455         /* Create SCSI host to the physical port */
7456         error = lpfc_create_shost(phba);
7457         if (error) {
7458                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7459                                 "1407 Failed to create scsi host.\n");
7460                 goto out_unset_driver_resource;
7461         }
7462
7463         /* Configure sysfs attributes */
7464         vport = phba->pport;
7465         error = lpfc_alloc_sysfs_attr(vport);
7466         if (error) {
7467                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7468                                 "1476 Failed to allocate sysfs attr\n");
7469                 goto out_destroy_shost;
7470         }
7471
7472         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
7473         /* Now, trying to enable interrupt and bring up the device */
7474         cfg_mode = phba->cfg_use_msi;
7475         while (true) {
7476                 /* Put device to a known state before enabling interrupt */
7477                 lpfc_stop_port(phba);
7478                 /* Configure and enable interrupt */
7479                 intr_mode = lpfc_sli_enable_intr(phba, cfg_mode);
7480                 if (intr_mode == LPFC_INTR_ERROR) {
7481                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7482                                         "0431 Failed to enable interrupt.\n");
7483                         error = -ENODEV;
7484                         goto out_free_sysfs_attr;
7485                 }
7486                 /* SLI-3 HBA setup */
7487                 if (lpfc_sli_hba_setup(phba)) {
7488                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7489                                         "1477 Failed to set up hba\n");
7490                         error = -ENODEV;
7491                         goto out_remove_device;
7492                 }
7493
7494                 /* Wait 50ms for the interrupts of previous mailbox commands */
7495                 msleep(50);
7496                 /* Check active interrupts on message signaled interrupts */
7497                 if (intr_mode == 0 ||
7498                     phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) {
7499                         /* Log the current active interrupt mode */
7500                         phba->intr_mode = intr_mode;
7501                         lpfc_log_intr_mode(phba, intr_mode);
7502                         break;
7503                 } else {
7504                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7505                                         "0447 Configure interrupt mode (%d) "
7506                                         "failed active interrupt test.\n",
7507                                         intr_mode);
7508                         /* Disable the current interrupt mode */
7509                         lpfc_sli_disable_intr(phba);
7510                         /* Try next level of interrupt mode */
7511                         cfg_mode = --intr_mode;
7512                 }
7513         }
7514
7515         /* Perform post initialization setup */
7516         lpfc_post_init_setup(phba);
7517
7518         /* Check if there are static vports to be created. */
7519         lpfc_create_static_vport(phba);
7520
7521         return 0;
7522
7523 out_remove_device:
7524         lpfc_unset_hba(phba);
7525 out_free_sysfs_attr:
7526         lpfc_free_sysfs_attr(vport);
7527 out_destroy_shost:
7528         lpfc_destroy_shost(phba);
7529 out_unset_driver_resource:
7530         lpfc_unset_driver_resource_phase2(phba);
7531 out_free_iocb_list:
7532         lpfc_free_iocb_list(phba);
7533 out_unset_driver_resource_s3:
7534         lpfc_sli_driver_resource_unset(phba);
7535 out_unset_pci_mem_s3:
7536         lpfc_sli_pci_mem_unset(phba);
7537 out_disable_pci_dev:
7538         lpfc_disable_pci_dev(phba);
7539         if (shost)
7540                 scsi_host_put(shost);
7541 out_free_phba:
7542         lpfc_hba_free(phba);
7543         return error;
7544 }
7545
7546 /**
7547  * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem.
7548  * @pdev: pointer to PCI device
7549  *
7550  * This routine is to be called to disattach a device with SLI-3 interface
7551  * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is
7552  * removed from PCI bus, it performs all the necessary cleanup for the HBA
7553  * device to be removed from the PCI subsystem properly.
7554  **/
7555 static void __devexit
7556 lpfc_pci_remove_one_s3(struct pci_dev *pdev)
7557 {
7558         struct Scsi_Host  *shost = pci_get_drvdata(pdev);
7559         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
7560         struct lpfc_vport **vports;
7561         struct lpfc_hba   *phba = vport->phba;
7562         int i;
7563         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
7564
7565         spin_lock_irq(&phba->hbalock);
7566         vport->load_flag |= FC_UNLOADING;
7567         spin_unlock_irq(&phba->hbalock);
7568
7569         lpfc_free_sysfs_attr(vport);
7570
7571         /* Release all the vports against this physical port */
7572         vports = lpfc_create_vport_work_array(phba);
7573         if (vports != NULL)
7574                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
7575                         fc_vport_terminate(vports[i]->fc_vport);
7576         lpfc_destroy_vport_work_array(phba, vports);
7577
7578         /* Remove FC host and then SCSI host with the physical port */
7579         fc_remove_host(shost);
7580         scsi_remove_host(shost);
7581         lpfc_cleanup(vport);
7582
7583         /*
7584          * Bring down the SLI Layer. This step disable all interrupts,
7585          * clears the rings, discards all mailbox commands, and resets
7586          * the HBA.
7587          */
7588
7589         /* HBA interrupt will be diabled after this call */
7590         lpfc_sli_hba_down(phba);
7591         /* Stop kthread signal shall trigger work_done one more time */
7592         kthread_stop(phba->worker_thread);
7593         /* Final cleanup of txcmplq and reset the HBA */
7594         lpfc_sli_brdrestart(phba);
7595
7596         lpfc_stop_hba_timers(phba);
7597         spin_lock_irq(&phba->hbalock);
7598         list_del_init(&vport->listentry);
7599         spin_unlock_irq(&phba->hbalock);
7600
7601         lpfc_debugfs_terminate(vport);
7602
7603         /* Disable interrupt */
7604         lpfc_sli_disable_intr(phba);
7605
7606         pci_set_drvdata(pdev, NULL);
7607         scsi_host_put(shost);
7608
7609         /*
7610          * Call scsi_free before mem_free since scsi bufs are released to their
7611          * corresponding pools here.
7612          */
7613         lpfc_scsi_free(phba);
7614         lpfc_mem_free_all(phba);
7615
7616         dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(),
7617                           phba->hbqslimp.virt, phba->hbqslimp.phys);
7618
7619         /* Free resources associated with SLI2 interface */
7620         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
7621                           phba->slim2p.virt, phba->slim2p.phys);
7622
7623         /* unmap adapter SLIM and Control Registers */
7624         iounmap(phba->ctrl_regs_memmap_p);
7625         iounmap(phba->slim_memmap_p);
7626
7627         lpfc_hba_free(phba);
7628
7629         pci_release_selected_regions(pdev, bars);
7630         pci_disable_device(pdev);
7631 }
7632
7633 /**
7634  * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt
7635  * @pdev: pointer to PCI device
7636  * @msg: power management message
7637  *
7638  * This routine is to be called from the kernel's PCI subsystem to support
7639  * system Power Management (PM) to device with SLI-3 interface spec. When
7640  * PM invokes this method, it quiesces the device by stopping the driver's
7641  * worker thread for the device, turning off device's interrupt and DMA,
7642  * and bring the device offline. Note that as the driver implements the
7643  * minimum PM requirements to a power-aware driver's PM support for the
7644  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
7645  * to the suspend() method call will be treated as SUSPEND and the driver will
7646  * fully reinitialize its device during resume() method call, the driver will
7647  * set device to PCI_D3hot state in PCI config space instead of setting it
7648  * according to the @msg provided by the PM.
7649  *
7650  * Return code
7651  *      0 - driver suspended the device
7652  *      Error otherwise
7653  **/
7654 static int
7655 lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg)
7656 {
7657         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7658         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7659
7660         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7661                         "0473 PCI device Power Management suspend.\n");
7662
7663         /* Bring down the device */
7664         lpfc_offline_prep(phba);
7665         lpfc_offline(phba);
7666         kthread_stop(phba->worker_thread);
7667
7668         /* Disable interrupt from device */
7669         lpfc_sli_disable_intr(phba);
7670
7671         /* Save device state to PCI config space */
7672         pci_save_state(pdev);
7673         pci_set_power_state(pdev, PCI_D3hot);
7674
7675         return 0;
7676 }
7677
7678 /**
7679  * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt
7680  * @pdev: pointer to PCI device
7681  *
7682  * This routine is to be called from the kernel's PCI subsystem to support
7683  * system Power Management (PM) to device with SLI-3 interface spec. When PM
7684  * invokes this method, it restores the device's PCI config space state and
7685  * fully reinitializes the device and brings it online. Note that as the
7686  * driver implements the minimum PM requirements to a power-aware driver's
7687  * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE,
7688  * FREEZE) to the suspend() method call will be treated as SUSPEND and the
7689  * driver will fully reinitialize its device during resume() method call,
7690  * the device will be set to PCI_D0 directly in PCI config space before
7691  * restoring the state.
7692  *
7693  * Return code
7694  *      0 - driver suspended the device
7695  *      Error otherwise
7696  **/
7697 static int
7698 lpfc_pci_resume_one_s3(struct pci_dev *pdev)
7699 {
7700         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7701         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7702         uint32_t intr_mode;
7703         int error;
7704
7705         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
7706                         "0452 PCI device Power Management resume.\n");
7707
7708         /* Restore device state from PCI config space */
7709         pci_set_power_state(pdev, PCI_D0);
7710         pci_restore_state(pdev);
7711
7712         /*
7713          * As the new kernel behavior of pci_restore_state() API call clears
7714          * device saved_state flag, need to save the restored state again.
7715          */
7716         pci_save_state(pdev);
7717
7718         if (pdev->is_busmaster)
7719                 pci_set_master(pdev);
7720
7721         /* Startup the kernel thread for this host adapter. */
7722         phba->worker_thread = kthread_run(lpfc_do_work, phba,
7723                                         "lpfc_worker_%d", phba->brd_no);
7724         if (IS_ERR(phba->worker_thread)) {
7725                 error = PTR_ERR(phba->worker_thread);
7726                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7727                                 "0434 PM resume failed to start worker "
7728                                 "thread: error=x%x.\n", error);
7729                 return error;
7730         }
7731
7732         /* Configure and enable interrupt */
7733         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7734         if (intr_mode == LPFC_INTR_ERROR) {
7735                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7736                                 "0430 PM resume Failed to enable interrupt\n");
7737                 return -EIO;
7738         } else
7739                 phba->intr_mode = intr_mode;
7740
7741         /* Restart HBA and bring it online */
7742         lpfc_sli_brdrestart(phba);
7743         lpfc_online(phba);
7744
7745         /* Log the current active interrupt mode */
7746         lpfc_log_intr_mode(phba, phba->intr_mode);
7747
7748         return 0;
7749 }
7750
7751 /**
7752  * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover
7753  * @phba: pointer to lpfc hba data structure.
7754  *
7755  * This routine is called to prepare the SLI3 device for PCI slot recover. It
7756  * aborts and stops all the on-going I/Os on the pci device.
7757  **/
7758 static void
7759 lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba)
7760 {
7761         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7762                         "2723 PCI channel I/O abort preparing for recovery\n");
7763         /* Prepare for bringing HBA offline */
7764         lpfc_offline_prep(phba);
7765         /* Clear sli active flag to prevent sysfs access to HBA */
7766         spin_lock_irq(&phba->hbalock);
7767         phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
7768         spin_unlock_irq(&phba->hbalock);
7769         /* Stop and flush all I/Os and bring HBA offline */
7770         lpfc_offline(phba);
7771 }
7772
7773 /**
7774  * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset
7775  * @phba: pointer to lpfc hba data structure.
7776  *
7777  * This routine is called to prepare the SLI3 device for PCI slot reset. It
7778  * disables the device interrupt and pci device, and aborts the internal FCP
7779  * pending I/Os.
7780  **/
7781 static void
7782 lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba)
7783 {
7784         struct lpfc_sli *psli = &phba->sli;
7785         struct lpfc_sli_ring  *pring;
7786
7787         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7788                         "2710 PCI channel disable preparing for reset\n");
7789         /* Disable interrupt and pci device */
7790         lpfc_sli_disable_intr(phba);
7791         pci_disable_device(phba->pcidev);
7792         /*
7793          * There may be I/Os dropped by the firmware.
7794          * Error iocb (I/O) on txcmplq and let the SCSI layer
7795          * retry it after re-establishing link.
7796          */
7797         pring = &psli->ring[psli->fcp_ring];
7798         lpfc_sli_abort_iocb_ring(phba, pring);
7799 }
7800
7801 /**
7802  * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable
7803  * @phba: pointer to lpfc hba data structure.
7804  *
7805  * This routine is called to prepare the SLI3 device for PCI slot permanently
7806  * disabling. It blocks the SCSI transport layer traffic and flushes the FCP
7807  * pending I/Os.
7808  **/
7809 static void
7810 lpfc_prep_dev_for_perm_failure(struct lpfc_hba *phba)
7811 {
7812         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7813                         "2711 PCI channel permanent disable for failure\n");
7814         /* Clean up all driver's outstanding SCSI I/Os */
7815         lpfc_sli_flush_fcp_rings(phba);
7816 }
7817
7818 /**
7819  * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error
7820  * @pdev: pointer to PCI device.
7821  * @state: the current PCI connection state.
7822  *
7823  * This routine is called from the PCI subsystem for I/O error handling to
7824  * device with SLI-3 interface spec. This function is called by the PCI
7825  * subsystem after a PCI bus error affecting this device has been detected.
7826  * When this function is invoked, it will need to stop all the I/Os and
7827  * interrupt(s) to the device. Once that is done, it will return
7828  * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery
7829  * as desired.
7830  *
7831  * Return codes
7832  *      PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link
7833  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
7834  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7835  **/
7836 static pci_ers_result_t
7837 lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state)
7838 {
7839         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7840         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7841
7842         /* Block all SCSI devices' I/Os on the host */
7843         lpfc_scsi_dev_block(phba);
7844
7845         switch (state) {
7846         case pci_channel_io_normal:
7847                 /* Non-fatal error, prepare for recovery */
7848                 lpfc_sli_prep_dev_for_recover(phba);
7849                 return PCI_ERS_RESULT_CAN_RECOVER;
7850         case pci_channel_io_frozen:
7851                 /* Fatal error, prepare for slot reset */
7852                 lpfc_sli_prep_dev_for_reset(phba);
7853                 return PCI_ERS_RESULT_NEED_RESET;
7854         case pci_channel_io_perm_failure:
7855                 /* Permanent failure, prepare for device down */
7856                 lpfc_prep_dev_for_perm_failure(phba);
7857                 return PCI_ERS_RESULT_DISCONNECT;
7858         default:
7859                 /* Unknown state, prepare and request slot reset */
7860                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7861                                 "0472 Unknown PCI error state: x%x\n", state);
7862                 lpfc_sli_prep_dev_for_reset(phba);
7863                 return PCI_ERS_RESULT_NEED_RESET;
7864         }
7865 }
7866
7867 /**
7868  * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch.
7869  * @pdev: pointer to PCI device.
7870  *
7871  * This routine is called from the PCI subsystem for error handling to
7872  * device with SLI-3 interface spec. This is called after PCI bus has been
7873  * reset to restart the PCI card from scratch, as if from a cold-boot.
7874  * During the PCI subsystem error recovery, after driver returns
7875  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
7876  * recovery and then call this routine before calling the .resume method
7877  * to recover the device. This function will initialize the HBA device,
7878  * enable the interrupt, but it will just put the HBA to offline state
7879  * without passing any I/O traffic.
7880  *
7881  * Return codes
7882  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
7883  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
7884  */
7885 static pci_ers_result_t
7886 lpfc_io_slot_reset_s3(struct pci_dev *pdev)
7887 {
7888         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7889         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7890         struct lpfc_sli *psli = &phba->sli;
7891         uint32_t intr_mode;
7892
7893         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
7894         if (pci_enable_device_mem(pdev)) {
7895                 printk(KERN_ERR "lpfc: Cannot re-enable "
7896                         "PCI device after reset.\n");
7897                 return PCI_ERS_RESULT_DISCONNECT;
7898         }
7899
7900         pci_restore_state(pdev);
7901
7902         /*
7903          * As the new kernel behavior of pci_restore_state() API call clears
7904          * device saved_state flag, need to save the restored state again.
7905          */
7906         pci_save_state(pdev);
7907
7908         if (pdev->is_busmaster)
7909                 pci_set_master(pdev);
7910
7911         spin_lock_irq(&phba->hbalock);
7912         psli->sli_flag &= ~LPFC_SLI_ACTIVE;
7913         spin_unlock_irq(&phba->hbalock);
7914
7915         /* Configure and enable interrupt */
7916         intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode);
7917         if (intr_mode == LPFC_INTR_ERROR) {
7918                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7919                                 "0427 Cannot re-enable interrupt after "
7920                                 "slot reset.\n");
7921                 return PCI_ERS_RESULT_DISCONNECT;
7922         } else
7923                 phba->intr_mode = intr_mode;
7924
7925         /* Take device offline; this will perform cleanup */
7926         lpfc_offline(phba);
7927         lpfc_sli_brdrestart(phba);
7928
7929         /* Log the current active interrupt mode */
7930         lpfc_log_intr_mode(phba, phba->intr_mode);
7931
7932         return PCI_ERS_RESULT_RECOVERED;
7933 }
7934
7935 /**
7936  * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device.
7937  * @pdev: pointer to PCI device
7938  *
7939  * This routine is called from the PCI subsystem for error handling to device
7940  * with SLI-3 interface spec. It is called when kernel error recovery tells
7941  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
7942  * error recovery. After this call, traffic can start to flow from this device
7943  * again.
7944  */
7945 static void
7946 lpfc_io_resume_s3(struct pci_dev *pdev)
7947 {
7948         struct Scsi_Host *shost = pci_get_drvdata(pdev);
7949         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
7950
7951         /* Bring the device online */
7952         lpfc_online(phba);
7953
7954         /* Clean up Advanced Error Reporting (AER) if needed */
7955         if (phba->hba_flag & HBA_AER_ENABLED)
7956                 pci_cleanup_aer_uncorrect_error_status(pdev);
7957 }
7958
7959 /**
7960  * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve
7961  * @phba: pointer to lpfc hba data structure.
7962  *
7963  * returns the number of ELS/CT IOCBs to reserve
7964  **/
7965 int
7966 lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba)
7967 {
7968         int max_xri = phba->sli4_hba.max_cfg_param.max_xri;
7969
7970         if (phba->sli_rev == LPFC_SLI_REV4) {
7971                 if (max_xri <= 100)
7972                         return 10;
7973                 else if (max_xri <= 256)
7974                         return 25;
7975                 else if (max_xri <= 512)
7976                         return 50;
7977                 else if (max_xri <= 1024)
7978                         return 100;
7979                 else
7980                         return 150;
7981         } else
7982                 return 0;
7983 }
7984
7985 /**
7986  * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys
7987  * @pdev: pointer to PCI device
7988  * @pid: pointer to PCI device identifier
7989  *
7990  * This routine is called from the kernel's PCI subsystem to device with
7991  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
7992  * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific
7993  * information of the device and driver to see if the driver state that it
7994  * can support this kind of device. If the match is successful, the driver
7995  * core invokes this routine. If this routine determines it can claim the HBA,
7996  * it does all the initialization that it needs to do to handle the HBA
7997  * properly.
7998  *
7999  * Return code
8000  *      0 - driver can claim the device
8001  *      negative value - driver can not claim the device
8002  **/
8003 static int __devinit
8004 lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
8005 {
8006         struct lpfc_hba   *phba;
8007         struct lpfc_vport *vport = NULL;
8008         struct Scsi_Host  *shost = NULL;
8009         int error;
8010         uint32_t cfg_mode, intr_mode;
8011         int mcnt;
8012
8013         /* Allocate memory for HBA structure */
8014         phba = lpfc_hba_alloc(pdev);
8015         if (!phba)
8016                 return -ENOMEM;
8017
8018         /* Perform generic PCI device enabling operation */
8019         error = lpfc_enable_pci_dev(phba);
8020         if (error) {
8021                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8022                                 "1409 Failed to enable pci device.\n");
8023                 goto out_free_phba;
8024         }
8025
8026         /* Set up SLI API function jump table for PCI-device group-1 HBAs */
8027         error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC);
8028         if (error)
8029                 goto out_disable_pci_dev;
8030
8031         /* Set up SLI-4 specific device PCI memory space */
8032         error = lpfc_sli4_pci_mem_setup(phba);
8033         if (error) {
8034                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8035                                 "1410 Failed to set up pci memory space.\n");
8036                 goto out_disable_pci_dev;
8037         }
8038
8039         /* Set up phase-1 common device driver resources */
8040         error = lpfc_setup_driver_resource_phase1(phba);
8041         if (error) {
8042                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8043                                 "1411 Failed to set up driver resource.\n");
8044                 goto out_unset_pci_mem_s4;
8045         }
8046
8047         /* Set up SLI-4 Specific device driver resources */
8048         error = lpfc_sli4_driver_resource_setup(phba);
8049         if (error) {
8050                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8051                                 "1412 Failed to set up driver resource.\n");
8052                 goto out_unset_pci_mem_s4;
8053         }
8054
8055         /* Initialize and populate the iocb list per host */
8056         error = lpfc_init_iocb_list(phba,
8057                         phba->sli4_hba.max_cfg_param.max_xri);
8058         if (error) {
8059                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8060                                 "1413 Failed to initialize iocb list.\n");
8061                 goto out_unset_driver_resource_s4;
8062         }
8063
8064         /* Set up common device driver resources */
8065         error = lpfc_setup_driver_resource_phase2(phba);
8066         if (error) {
8067                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8068                                 "1414 Failed to set up driver resource.\n");
8069                 goto out_free_iocb_list;
8070         }
8071
8072         /* Create SCSI host to the physical port */
8073         error = lpfc_create_shost(phba);
8074         if (error) {
8075                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8076                                 "1415 Failed to create scsi host.\n");
8077                 goto out_unset_driver_resource;
8078         }
8079
8080         /* Configure sysfs attributes */
8081         vport = phba->pport;
8082         error = lpfc_alloc_sysfs_attr(vport);
8083         if (error) {
8084                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8085                                 "1416 Failed to allocate sysfs attr\n");
8086                 goto out_destroy_shost;
8087         }
8088
8089         shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */
8090         /* Now, trying to enable interrupt and bring up the device */
8091         cfg_mode = phba->cfg_use_msi;
8092         while (true) {
8093                 /* Put device to a known state before enabling interrupt */
8094                 lpfc_stop_port(phba);
8095                 /* Configure and enable interrupt */
8096                 intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode);
8097                 if (intr_mode == LPFC_INTR_ERROR) {
8098                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8099                                         "0426 Failed to enable interrupt.\n");
8100                         error = -ENODEV;
8101                         goto out_free_sysfs_attr;
8102                 }
8103                 /* Default to single FCP EQ for non-MSI-X */
8104                 if (phba->intr_type != MSIX)
8105                         phba->cfg_fcp_eq_count = 1;
8106                 /* Set up SLI-4 HBA */
8107                 if (lpfc_sli4_hba_setup(phba)) {
8108                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8109                                         "1421 Failed to set up hba\n");
8110                         error = -ENODEV;
8111                         goto out_disable_intr;
8112                 }
8113
8114                 /* Send NOP mbx cmds for non-INTx mode active interrupt test */
8115                 if (intr_mode != 0)
8116                         mcnt = lpfc_sli4_send_nop_mbox_cmds(phba,
8117                                                             LPFC_ACT_INTR_CNT);
8118
8119                 /* Check active interrupts received only for MSI/MSI-X */
8120                 if (intr_mode == 0 ||
8121                     phba->sli.slistat.sli_intr >= LPFC_ACT_INTR_CNT) {
8122                         /* Log the current active interrupt mode */
8123                         phba->intr_mode = intr_mode;
8124                         lpfc_log_intr_mode(phba, intr_mode);
8125                         break;
8126                 }
8127                 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8128                                 "0451 Configure interrupt mode (%d) "
8129                                 "failed active interrupt test.\n",
8130                                 intr_mode);
8131                 /* Unset the preivous SLI-4 HBA setup */
8132                 lpfc_sli4_unset_hba(phba);
8133                 /* Try next level of interrupt mode */
8134                 cfg_mode = --intr_mode;
8135         }
8136
8137         /* Perform post initialization setup */
8138         lpfc_post_init_setup(phba);
8139
8140         /* Check if there are static vports to be created. */
8141         lpfc_create_static_vport(phba);
8142
8143         return 0;
8144
8145 out_disable_intr:
8146         lpfc_sli4_disable_intr(phba);
8147 out_free_sysfs_attr:
8148         lpfc_free_sysfs_attr(vport);
8149 out_destroy_shost:
8150         lpfc_destroy_shost(phba);
8151 out_unset_driver_resource:
8152         lpfc_unset_driver_resource_phase2(phba);
8153 out_free_iocb_list:
8154         lpfc_free_iocb_list(phba);
8155 out_unset_driver_resource_s4:
8156         lpfc_sli4_driver_resource_unset(phba);
8157 out_unset_pci_mem_s4:
8158         lpfc_sli4_pci_mem_unset(phba);
8159 out_disable_pci_dev:
8160         lpfc_disable_pci_dev(phba);
8161         if (shost)
8162                 scsi_host_put(shost);
8163 out_free_phba:
8164         lpfc_hba_free(phba);
8165         return error;
8166 }
8167
8168 /**
8169  * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem
8170  * @pdev: pointer to PCI device
8171  *
8172  * This routine is called from the kernel's PCI subsystem to device with
8173  * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is
8174  * removed from PCI bus, it performs all the necessary cleanup for the HBA
8175  * device to be removed from the PCI subsystem properly.
8176  **/
8177 static void __devexit
8178 lpfc_pci_remove_one_s4(struct pci_dev *pdev)
8179 {
8180         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8181         struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
8182         struct lpfc_vport **vports;
8183         struct lpfc_hba *phba = vport->phba;
8184         int i;
8185
8186         /* Mark the device unloading flag */
8187         spin_lock_irq(&phba->hbalock);
8188         vport->load_flag |= FC_UNLOADING;
8189         spin_unlock_irq(&phba->hbalock);
8190
8191         /* Free the HBA sysfs attributes */
8192         lpfc_free_sysfs_attr(vport);
8193
8194         /* Release all the vports against this physical port */
8195         vports = lpfc_create_vport_work_array(phba);
8196         if (vports != NULL)
8197                 for (i = 1; i <= phba->max_vports && vports[i] != NULL; i++)
8198                         fc_vport_terminate(vports[i]->fc_vport);
8199         lpfc_destroy_vport_work_array(phba, vports);
8200
8201         /* Remove FC host and then SCSI host with the physical port */
8202         fc_remove_host(shost);
8203         scsi_remove_host(shost);
8204
8205         /* Perform cleanup on the physical port */
8206         lpfc_cleanup(vport);
8207
8208         /*
8209          * Bring down the SLI Layer. This step disables all interrupts,
8210          * clears the rings, discards all mailbox commands, and resets
8211          * the HBA FCoE function.
8212          */
8213         lpfc_debugfs_terminate(vport);
8214         lpfc_sli4_hba_unset(phba);
8215
8216         spin_lock_irq(&phba->hbalock);
8217         list_del_init(&vport->listentry);
8218         spin_unlock_irq(&phba->hbalock);
8219
8220         /* Call scsi_free before lpfc_sli4_driver_resource_unset since scsi
8221          * buffers are released to their corresponding pools here.
8222          */
8223         lpfc_scsi_free(phba);
8224         lpfc_sli4_driver_resource_unset(phba);
8225
8226         /* Unmap adapter Control and Doorbell registers */
8227         lpfc_sli4_pci_mem_unset(phba);
8228
8229         /* Release PCI resources and disable device's PCI function */
8230         scsi_host_put(shost);
8231         lpfc_disable_pci_dev(phba);
8232
8233         /* Finally, free the driver's device data structure */
8234         lpfc_hba_free(phba);
8235
8236         return;
8237 }
8238
8239 /**
8240  * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt
8241  * @pdev: pointer to PCI device
8242  * @msg: power management message
8243  *
8244  * This routine is called from the kernel's PCI subsystem to support system
8245  * Power Management (PM) to device with SLI-4 interface spec. When PM invokes
8246  * this method, it quiesces the device by stopping the driver's worker
8247  * thread for the device, turning off device's interrupt and DMA, and bring
8248  * the device offline. Note that as the driver implements the minimum PM
8249  * requirements to a power-aware driver's PM support for suspend/resume -- all
8250  * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend()
8251  * method call will be treated as SUSPEND and the driver will fully
8252  * reinitialize its device during resume() method call, the driver will set
8253  * device to PCI_D3hot state in PCI config space instead of setting it
8254  * according to the @msg provided by the PM.
8255  *
8256  * Return code
8257  *      0 - driver suspended the device
8258  *      Error otherwise
8259  **/
8260 static int
8261 lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg)
8262 {
8263         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8264         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8265
8266         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8267                         "0298 PCI device Power Management suspend.\n");
8268
8269         /* Bring down the device */
8270         lpfc_offline_prep(phba);
8271         lpfc_offline(phba);
8272         kthread_stop(phba->worker_thread);
8273
8274         /* Disable interrupt from device */
8275         lpfc_sli4_disable_intr(phba);
8276
8277         /* Save device state to PCI config space */
8278         pci_save_state(pdev);
8279         pci_set_power_state(pdev, PCI_D3hot);
8280
8281         return 0;
8282 }
8283
8284 /**
8285  * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt
8286  * @pdev: pointer to PCI device
8287  *
8288  * This routine is called from the kernel's PCI subsystem to support system
8289  * Power Management (PM) to device with SLI-4 interface spac. When PM invokes
8290  * this method, it restores the device's PCI config space state and fully
8291  * reinitializes the device and brings it online. Note that as the driver
8292  * implements the minimum PM requirements to a power-aware driver's PM for
8293  * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE)
8294  * to the suspend() method call will be treated as SUSPEND and the driver
8295  * will fully reinitialize its device during resume() method call, the device
8296  * will be set to PCI_D0 directly in PCI config space before restoring the
8297  * state.
8298  *
8299  * Return code
8300  *      0 - driver suspended the device
8301  *      Error otherwise
8302  **/
8303 static int
8304 lpfc_pci_resume_one_s4(struct pci_dev *pdev)
8305 {
8306         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8307         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8308         uint32_t intr_mode;
8309         int error;
8310
8311         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
8312                         "0292 PCI device Power Management resume.\n");
8313
8314         /* Restore device state from PCI config space */
8315         pci_set_power_state(pdev, PCI_D0);
8316         pci_restore_state(pdev);
8317
8318         /*
8319          * As the new kernel behavior of pci_restore_state() API call clears
8320          * device saved_state flag, need to save the restored state again.
8321          */
8322         pci_save_state(pdev);
8323
8324         if (pdev->is_busmaster)
8325                 pci_set_master(pdev);
8326
8327          /* Startup the kernel thread for this host adapter. */
8328         phba->worker_thread = kthread_run(lpfc_do_work, phba,
8329                                         "lpfc_worker_%d", phba->brd_no);
8330         if (IS_ERR(phba->worker_thread)) {
8331                 error = PTR_ERR(phba->worker_thread);
8332                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8333                                 "0293 PM resume failed to start worker "
8334                                 "thread: error=x%x.\n", error);
8335                 return error;
8336         }
8337
8338         /* Configure and enable interrupt */
8339         intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode);
8340         if (intr_mode == LPFC_INTR_ERROR) {
8341                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8342                                 "0294 PM resume Failed to enable interrupt\n");
8343                 return -EIO;
8344         } else
8345                 phba->intr_mode = intr_mode;
8346
8347         /* Restart HBA and bring it online */
8348         lpfc_sli_brdrestart(phba);
8349         lpfc_online(phba);
8350
8351         /* Log the current active interrupt mode */
8352         lpfc_log_intr_mode(phba, phba->intr_mode);
8353
8354         return 0;
8355 }
8356
8357 /**
8358  * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device
8359  * @pdev: pointer to PCI device.
8360  * @state: the current PCI connection state.
8361  *
8362  * This routine is called from the PCI subsystem for error handling to device
8363  * with SLI-4 interface spec. This function is called by the PCI subsystem
8364  * after a PCI bus error affecting this device has been detected. When this
8365  * function is invoked, it will need to stop all the I/Os and interrupt(s)
8366  * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET
8367  * for the PCI subsystem to perform proper recovery as desired.
8368  *
8369  * Return codes
8370  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8371  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8372  **/
8373 static pci_ers_result_t
8374 lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state)
8375 {
8376         return PCI_ERS_RESULT_NEED_RESET;
8377 }
8378
8379 /**
8380  * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch
8381  * @pdev: pointer to PCI device.
8382  *
8383  * This routine is called from the PCI subsystem for error handling to device
8384  * with SLI-4 interface spec. It is called after PCI bus has been reset to
8385  * restart the PCI card from scratch, as if from a cold-boot. During the
8386  * PCI subsystem error recovery, after the driver returns
8387  * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error
8388  * recovery and then call this routine before calling the .resume method to
8389  * recover the device. This function will initialize the HBA device, enable
8390  * the interrupt, but it will just put the HBA to offline state without
8391  * passing any I/O traffic.
8392  *
8393  * Return codes
8394  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8395  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8396  */
8397 static pci_ers_result_t
8398 lpfc_io_slot_reset_s4(struct pci_dev *pdev)
8399 {
8400         return PCI_ERS_RESULT_RECOVERED;
8401 }
8402
8403 /**
8404  * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device
8405  * @pdev: pointer to PCI device
8406  *
8407  * This routine is called from the PCI subsystem for error handling to device
8408  * with SLI-4 interface spec. It is called when kernel error recovery tells
8409  * the lpfc driver that it is ok to resume normal PCI operation after PCI bus
8410  * error recovery. After this call, traffic can start to flow from this device
8411  * again.
8412  **/
8413 static void
8414 lpfc_io_resume_s4(struct pci_dev *pdev)
8415 {
8416         return;
8417 }
8418
8419 /**
8420  * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem
8421  * @pdev: pointer to PCI device
8422  * @pid: pointer to PCI device identifier
8423  *
8424  * This routine is to be registered to the kernel's PCI subsystem. When an
8425  * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks
8426  * at PCI device-specific information of the device and driver to see if the
8427  * driver state that it can support this kind of device. If the match is
8428  * successful, the driver core invokes this routine. This routine dispatches
8429  * the action to the proper SLI-3 or SLI-4 device probing routine, which will
8430  * do all the initialization that it needs to do to handle the HBA device
8431  * properly.
8432  *
8433  * Return code
8434  *      0 - driver can claim the device
8435  *      negative value - driver can not claim the device
8436  **/
8437 static int __devinit
8438 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
8439 {
8440         int rc;
8441         struct lpfc_sli_intf intf;
8442
8443         if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0))
8444                 return -ENODEV;
8445
8446         if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) &&
8447             (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4))
8448                 rc = lpfc_pci_probe_one_s4(pdev, pid);
8449         else
8450                 rc = lpfc_pci_probe_one_s3(pdev, pid);
8451
8452         return rc;
8453 }
8454
8455 /**
8456  * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem
8457  * @pdev: pointer to PCI device
8458  *
8459  * This routine is to be registered to the kernel's PCI subsystem. When an
8460  * Emulex HBA is removed from PCI bus, the driver core invokes this routine.
8461  * This routine dispatches the action to the proper SLI-3 or SLI-4 device
8462  * remove routine, which will perform all the necessary cleanup for the
8463  * device to be removed from the PCI subsystem properly.
8464  **/
8465 static void __devexit
8466 lpfc_pci_remove_one(struct pci_dev *pdev)
8467 {
8468         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8469         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8470
8471         switch (phba->pci_dev_grp) {
8472         case LPFC_PCI_DEV_LP:
8473                 lpfc_pci_remove_one_s3(pdev);
8474                 break;
8475         case LPFC_PCI_DEV_OC:
8476                 lpfc_pci_remove_one_s4(pdev);
8477                 break;
8478         default:
8479                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8480                                 "1424 Invalid PCI device group: 0x%x\n",
8481                                 phba->pci_dev_grp);
8482                 break;
8483         }
8484         return;
8485 }
8486
8487 /**
8488  * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management
8489  * @pdev: pointer to PCI device
8490  * @msg: power management message
8491  *
8492  * This routine is to be registered to the kernel's PCI subsystem to support
8493  * system Power Management (PM). When PM invokes this method, it dispatches
8494  * the action to the proper SLI-3 or SLI-4 device suspend routine, which will
8495  * suspend the device.
8496  *
8497  * Return code
8498  *      0 - driver suspended the device
8499  *      Error otherwise
8500  **/
8501 static int
8502 lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg)
8503 {
8504         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8505         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8506         int rc = -ENODEV;
8507
8508         switch (phba->pci_dev_grp) {
8509         case LPFC_PCI_DEV_LP:
8510                 rc = lpfc_pci_suspend_one_s3(pdev, msg);
8511                 break;
8512         case LPFC_PCI_DEV_OC:
8513                 rc = lpfc_pci_suspend_one_s4(pdev, msg);
8514                 break;
8515         default:
8516                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8517                                 "1425 Invalid PCI device group: 0x%x\n",
8518                                 phba->pci_dev_grp);
8519                 break;
8520         }
8521         return rc;
8522 }
8523
8524 /**
8525  * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management
8526  * @pdev: pointer to PCI device
8527  *
8528  * This routine is to be registered to the kernel's PCI subsystem to support
8529  * system Power Management (PM). When PM invokes this method, it dispatches
8530  * the action to the proper SLI-3 or SLI-4 device resume routine, which will
8531  * resume the device.
8532  *
8533  * Return code
8534  *      0 - driver suspended the device
8535  *      Error otherwise
8536  **/
8537 static int
8538 lpfc_pci_resume_one(struct pci_dev *pdev)
8539 {
8540         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8541         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8542         int rc = -ENODEV;
8543
8544         switch (phba->pci_dev_grp) {
8545         case LPFC_PCI_DEV_LP:
8546                 rc = lpfc_pci_resume_one_s3(pdev);
8547                 break;
8548         case LPFC_PCI_DEV_OC:
8549                 rc = lpfc_pci_resume_one_s4(pdev);
8550                 break;
8551         default:
8552                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8553                                 "1426 Invalid PCI device group: 0x%x\n",
8554                                 phba->pci_dev_grp);
8555                 break;
8556         }
8557         return rc;
8558 }
8559
8560 /**
8561  * lpfc_io_error_detected - lpfc method for handling PCI I/O error
8562  * @pdev: pointer to PCI device.
8563  * @state: the current PCI connection state.
8564  *
8565  * This routine is registered to the PCI subsystem for error handling. This
8566  * function is called by the PCI subsystem after a PCI bus error affecting
8567  * this device has been detected. When this routine is invoked, it dispatches
8568  * the action to the proper SLI-3 or SLI-4 device error detected handling
8569  * routine, which will perform the proper error detected operation.
8570  *
8571  * Return codes
8572  *      PCI_ERS_RESULT_NEED_RESET - need to reset before recovery
8573  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8574  **/
8575 static pci_ers_result_t
8576 lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
8577 {
8578         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8579         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8580         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8581
8582         switch (phba->pci_dev_grp) {
8583         case LPFC_PCI_DEV_LP:
8584                 rc = lpfc_io_error_detected_s3(pdev, state);
8585                 break;
8586         case LPFC_PCI_DEV_OC:
8587                 rc = lpfc_io_error_detected_s4(pdev, state);
8588                 break;
8589         default:
8590                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8591                                 "1427 Invalid PCI device group: 0x%x\n",
8592                                 phba->pci_dev_grp);
8593                 break;
8594         }
8595         return rc;
8596 }
8597
8598 /**
8599  * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch
8600  * @pdev: pointer to PCI device.
8601  *
8602  * This routine is registered to the PCI subsystem for error handling. This
8603  * function is called after PCI bus has been reset to restart the PCI card
8604  * from scratch, as if from a cold-boot. When this routine is invoked, it
8605  * dispatches the action to the proper SLI-3 or SLI-4 device reset handling
8606  * routine, which will perform the proper device reset.
8607  *
8608  * Return codes
8609  *      PCI_ERS_RESULT_RECOVERED - the device has been recovered
8610  *      PCI_ERS_RESULT_DISCONNECT - device could not be recovered
8611  **/
8612 static pci_ers_result_t
8613 lpfc_io_slot_reset(struct pci_dev *pdev)
8614 {
8615         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8616         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8617         pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT;
8618
8619         switch (phba->pci_dev_grp) {
8620         case LPFC_PCI_DEV_LP:
8621                 rc = lpfc_io_slot_reset_s3(pdev);
8622                 break;
8623         case LPFC_PCI_DEV_OC:
8624                 rc = lpfc_io_slot_reset_s4(pdev);
8625                 break;
8626         default:
8627                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8628                                 "1428 Invalid PCI device group: 0x%x\n",
8629                                 phba->pci_dev_grp);
8630                 break;
8631         }
8632         return rc;
8633 }
8634
8635 /**
8636  * lpfc_io_resume - lpfc method for resuming PCI I/O operation
8637  * @pdev: pointer to PCI device
8638  *
8639  * This routine is registered to the PCI subsystem for error handling. It
8640  * is called when kernel error recovery tells the lpfc driver that it is
8641  * OK to resume normal PCI operation after PCI bus error recovery. When
8642  * this routine is invoked, it dispatches the action to the proper SLI-3
8643  * or SLI-4 device io_resume routine, which will resume the device operation.
8644  **/
8645 static void
8646 lpfc_io_resume(struct pci_dev *pdev)
8647 {
8648         struct Scsi_Host *shost = pci_get_drvdata(pdev);
8649         struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
8650
8651         switch (phba->pci_dev_grp) {
8652         case LPFC_PCI_DEV_LP:
8653                 lpfc_io_resume_s3(pdev);
8654                 break;
8655         case LPFC_PCI_DEV_OC:
8656                 lpfc_io_resume_s4(pdev);
8657                 break;
8658         default:
8659                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8660                                 "1429 Invalid PCI device group: 0x%x\n",
8661                                 phba->pci_dev_grp);
8662                 break;
8663         }
8664         return;
8665 }
8666
8667 static struct pci_device_id lpfc_id_table[] = {
8668         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
8669                 PCI_ANY_ID, PCI_ANY_ID, },
8670         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
8671                 PCI_ANY_ID, PCI_ANY_ID, },
8672         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
8673                 PCI_ANY_ID, PCI_ANY_ID, },
8674         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
8675                 PCI_ANY_ID, PCI_ANY_ID, },
8676         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
8677                 PCI_ANY_ID, PCI_ANY_ID, },
8678         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
8679                 PCI_ANY_ID, PCI_ANY_ID, },
8680         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
8681                 PCI_ANY_ID, PCI_ANY_ID, },
8682         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
8683                 PCI_ANY_ID, PCI_ANY_ID, },
8684         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
8685                 PCI_ANY_ID, PCI_ANY_ID, },
8686         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
8687                 PCI_ANY_ID, PCI_ANY_ID, },
8688         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
8689                 PCI_ANY_ID, PCI_ANY_ID, },
8690         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
8691                 PCI_ANY_ID, PCI_ANY_ID, },
8692         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
8693                 PCI_ANY_ID, PCI_ANY_ID, },
8694         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
8695                 PCI_ANY_ID, PCI_ANY_ID, },
8696         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
8697                 PCI_ANY_ID, PCI_ANY_ID, },
8698         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
8699                 PCI_ANY_ID, PCI_ANY_ID, },
8700         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
8701                 PCI_ANY_ID, PCI_ANY_ID, },
8702         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
8703                 PCI_ANY_ID, PCI_ANY_ID, },
8704         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HORNET,
8705                 PCI_ANY_ID, PCI_ANY_ID, },
8706         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
8707                 PCI_ANY_ID, PCI_ANY_ID, },
8708         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
8709                 PCI_ANY_ID, PCI_ANY_ID, },
8710         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
8711                 PCI_ANY_ID, PCI_ANY_ID, },
8712         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
8713                 PCI_ANY_ID, PCI_ANY_ID, },
8714         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
8715                 PCI_ANY_ID, PCI_ANY_ID, },
8716         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
8717                 PCI_ANY_ID, PCI_ANY_ID, },
8718         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
8719                 PCI_ANY_ID, PCI_ANY_ID, },
8720         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
8721                 PCI_ANY_ID, PCI_ANY_ID, },
8722         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
8723                 PCI_ANY_ID, PCI_ANY_ID, },
8724         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT,
8725                 PCI_ANY_ID, PCI_ANY_ID, },
8726         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_MID,
8727                 PCI_ANY_ID, PCI_ANY_ID, },
8728         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SMB,
8729                 PCI_ANY_ID, PCI_ANY_ID, },
8730         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_DCSP,
8731                 PCI_ANY_ID, PCI_ANY_ID, },
8732         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_SCSP,
8733                 PCI_ANY_ID, PCI_ANY_ID, },
8734         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SAT_S,
8735                 PCI_ANY_ID, PCI_ANY_ID, },
8736         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_VF,
8737                 PCI_ANY_ID, PCI_ANY_ID, },
8738         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_PF,
8739                 PCI_ANY_ID, PCI_ANY_ID, },
8740         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PROTEUS_S,
8741                 PCI_ANY_ID, PCI_ANY_ID, },
8742         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TIGERSHARK,
8743                 PCI_ANY_ID, PCI_ANY_ID, },
8744         {PCI_VENDOR_ID_SERVERENGINE, PCI_DEVICE_ID_TOMCAT,
8745                 PCI_ANY_ID, PCI_ANY_ID, },
8746         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FALCON,
8747                 PCI_ANY_ID, PCI_ANY_ID, },
8748         { 0 }
8749 };
8750
8751 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
8752
8753 static struct pci_error_handlers lpfc_err_handler = {
8754         .error_detected = lpfc_io_error_detected,
8755         .slot_reset = lpfc_io_slot_reset,
8756         .resume = lpfc_io_resume,
8757 };
8758
8759 static struct pci_driver lpfc_driver = {
8760         .name           = LPFC_DRIVER_NAME,
8761         .id_table       = lpfc_id_table,
8762         .probe          = lpfc_pci_probe_one,
8763         .remove         = __devexit_p(lpfc_pci_remove_one),
8764         .suspend        = lpfc_pci_suspend_one,
8765         .resume         = lpfc_pci_resume_one,
8766         .err_handler    = &lpfc_err_handler,
8767 };
8768
8769 /**
8770  * lpfc_init - lpfc module initialization routine
8771  *
8772  * This routine is to be invoked when the lpfc module is loaded into the
8773  * kernel. The special kernel macro module_init() is used to indicate the
8774  * role of this routine to the kernel as lpfc module entry point.
8775  *
8776  * Return codes
8777  *   0 - successful
8778  *   -ENOMEM - FC attach transport failed
8779  *   all others - failed
8780  */
8781 static int __init
8782 lpfc_init(void)
8783 {
8784         int error = 0;
8785
8786         printk(LPFC_MODULE_DESC "\n");
8787         printk(LPFC_COPYRIGHT "\n");
8788
8789         if (lpfc_enable_npiv) {
8790                 lpfc_transport_functions.vport_create = lpfc_vport_create;
8791                 lpfc_transport_functions.vport_delete = lpfc_vport_delete;
8792         }
8793         lpfc_transport_template =
8794                                 fc_attach_transport(&lpfc_transport_functions);
8795         if (lpfc_transport_template == NULL)
8796                 return -ENOMEM;
8797         if (lpfc_enable_npiv) {
8798                 lpfc_vport_transport_template =
8799                         fc_attach_transport(&lpfc_vport_transport_functions);
8800                 if (lpfc_vport_transport_template == NULL) {
8801                         fc_release_transport(lpfc_transport_template);
8802                         return -ENOMEM;
8803                 }
8804         }
8805         error = pci_register_driver(&lpfc_driver);
8806         if (error) {
8807                 fc_release_transport(lpfc_transport_template);
8808                 if (lpfc_enable_npiv)
8809                         fc_release_transport(lpfc_vport_transport_template);
8810         }
8811
8812         return error;
8813 }
8814
8815 /**
8816  * lpfc_exit - lpfc module removal routine
8817  *
8818  * This routine is invoked when the lpfc module is removed from the kernel.
8819  * The special kernel macro module_exit() is used to indicate the role of
8820  * this routine to the kernel as lpfc module exit point.
8821  */
8822 static void __exit
8823 lpfc_exit(void)
8824 {
8825         pci_unregister_driver(&lpfc_driver);
8826         fc_release_transport(lpfc_transport_template);
8827         if (lpfc_enable_npiv)
8828                 fc_release_transport(lpfc_vport_transport_template);
8829         if (_dump_buf_data) {
8830                 printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for "
8831                                 "_dump_buf_data at 0x%p\n",
8832                                 (1L << _dump_buf_data_order), _dump_buf_data);
8833                 free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order);
8834         }
8835
8836         if (_dump_buf_dif) {
8837                 printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for "
8838                                 "_dump_buf_dif at 0x%p\n",
8839                                 (1L << _dump_buf_dif_order), _dump_buf_dif);
8840                 free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order);
8841         }
8842 }
8843
8844 module_init(lpfc_init);
8845 module_exit(lpfc_exit);
8846 MODULE_LICENSE("GPL");
8847 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
8848 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
8849 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);