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) 2004-2006 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
  31 #include <scsi/scsi.h>
  32 #include <scsi/scsi_device.h>
  33 #include <scsi/scsi_host.h>
  34 #include <scsi/scsi_transport_fc.h>
  35
  36 #include "lpfc_hw.h"
  37 #include "lpfc_sli.h"
  38 #include "lpfc_disc.h"
  39 #include "lpfc_scsi.h"
  40 #include "lpfc.h"
  41 #include "lpfc_logmsg.h"
  42 #include "lpfc_crtn.h"
  43 #include "lpfc_version.h"
  44
  45 static int lpfc_parse_vpd(struct lpfc_hba *, uint8_t *, int);
  46 static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *);
  47 static int lpfc_post_rcv_buf(struct lpfc_hba *);
  48
  49 static struct scsi_transport_template *lpfc_transport_template = NULL;
  50 static DEFINE_IDR(lpfc_hba_index);
  51
  52 /************************************************************************/
  53 /*                                                                      */
  54 /*    lpfc_config_port_prep                                             */
  55 /*    This routine will do LPFC initialization prior to the             */
  56 /*    CONFIG_PORT mailbox command. This will be initialized             */
  57 /*    as a SLI layer callback routine.                                  */
  58 /*    This routine returns 0 on success or -ERESTART if it wants        */
  59 /*    the SLI layer to reset the HBA and try again. Any                 */
  60 /*    other return value indicates an error.                            */
  61 /*                                                                      */
  62 /************************************************************************/
  63 int
  64 lpfc_config_port_prep(struct lpfc_hba * phba)
  65 {
  66         lpfc_vpd_t *vp = &phba->vpd;
  67         int i = 0, rc;
  68         LPFC_MBOXQ_t *pmb;
  69         MAILBOX_t *mb;
  70         char *lpfc_vpd_data = NULL;
  71         uint16_t offset = 0;
  72         static char licensed[56] =
  73                     "key unlock for use with gnu public licensed code only\0";
  74         static int init_key = 1;
  75
  76         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
  77         if (!pmb) {
  78                 phba->hba_state = LPFC_HBA_ERROR;
  79                 return -ENOMEM;
  80         }
  81
  82         mb = &pmb->mb;
  83         phba->hba_state = LPFC_INIT_MBX_CMDS;
  84
  85         if (lpfc_is_LC_HBA(phba->pcidev->device)) {
  86                 if (init_key) {
  87                         uint32_t *ptext = (uint32_t *) licensed;
  88
  89                         for (i = 0; i < 56; i += sizeof (uint32_t), ptext++)
  90                                 *ptext = cpu_to_be32(*ptext);
  91                         init_key = 0;
  92                 }
  93
  94                 lpfc_read_nv(phba, pmb);
  95                 memset((char*)mb->un.varRDnvp.rsvd3, 0,
  96                         sizeof (mb->un.varRDnvp.rsvd3));
  97                 memcpy((char*)mb->un.varRDnvp.rsvd3, licensed,
  98                          sizeof (licensed));
  99
 100                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 101
 102                 if (rc != MBX_SUCCESS) {
 103                         lpfc_printf_log(phba,
 104                                         KERN_ERR,
 105                                         LOG_MBOX,
 106                                         "%d:0324 Config Port initialization "
 107                                         "error, mbxCmd x%x READ_NVPARM, "
 108                                         "mbxStatus x%x\n",
 109                                         phba->brd_no,
 110                                         mb->mbxCommand, mb->mbxStatus);
 111                         mempool_free(pmb, phba->mbox_mem_pool);
 112                         return -ERESTART;
 113                 }
 114                 memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename,
 115                        sizeof (mb->un.varRDnvp.nodename));
 116         }
 117
 118         /* Setup and issue mailbox READ REV command */
 119         lpfc_read_rev(phba, pmb);
 120         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 121         if (rc != MBX_SUCCESS) {
 122                 lpfc_printf_log(phba,
 123                                 KERN_ERR,
 124                                 LOG_INIT,
 125                                 "%d:0439 Adapter failed to init, mbxCmd x%x "
 126                                 "READ_REV, mbxStatus x%x\n",
 127                                 phba->brd_no,
 128                                 mb->mbxCommand, mb->mbxStatus);
 129                 mempool_free( pmb, phba->mbox_mem_pool);
 130                 return -ERESTART;
 131         }
 132
 133         /*
 134          * The value of rr must be 1 since the driver set the cv field to 1.
 135          * This setting requires the FW to set all revision fields.
 136          */
 137         if (mb->un.varRdRev.rr == 0) {
 138                 vp->rev.rBit = 0;
 139                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 140                                 "%d:0440 Adapter failed to init, READ_REV has "
 141                                 "missing revision information.\n",
 142                                 phba->brd_no);
 143                 mempool_free(pmb, phba->mbox_mem_pool);
 144                 return -ERESTART;
 145         }
 146
 147         /* Save information as VPD data */
 148         vp->rev.rBit = 1;
 149         vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev;
 150         memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16);
 151         vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev;
 152         memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16);
 153         vp->rev.biuRev = mb->un.varRdRev.biuRev;
 154         vp->rev.smRev = mb->un.varRdRev.smRev;
 155         vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev;
 156         vp->rev.endecRev = mb->un.varRdRev.endecRev;
 157         vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh;
 158         vp->rev.fcphLow = mb->un.varRdRev.fcphLow;
 159         vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh;
 160         vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow;
 161         vp->rev.postKernRev = mb->un.varRdRev.postKernRev;
 162         vp->rev.opFwRev = mb->un.varRdRev.opFwRev;
 163
 164         if (lpfc_is_LC_HBA(phba->pcidev->device))
 165                 memcpy(phba->RandomData, (char *)&mb->un.varWords[24],
 166                                                 sizeof (phba->RandomData));
 167
 168         /* Get adapter VPD information */
 169         pmb->context2 = kmalloc(DMP_RSP_SIZE, GFP_KERNEL);
 170         if (!pmb->context2)
 171                 goto out_free_mbox;
 172         lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL);
 173         if (!lpfc_vpd_data)
 174                 goto out_free_context2;
 175
 176         do {
 177                 lpfc_dump_mem(phba, pmb, offset);
 178                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 179
 180                 if (rc != MBX_SUCCESS) {
 181                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
 182                                         "%d:0441 VPD not present on adapter, "
 183                                         "mbxCmd x%x DUMP VPD, mbxStatus x%x\n",
 184                                         phba->brd_no,
 185                                         mb->mbxCommand, mb->mbxStatus);
 186                         mb->un.varDmp.word_cnt = 0;
 187                 }
 188                 if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset)
 189                         mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset;
 190                 lpfc_sli_pcimem_bcopy(pmb->context2, lpfc_vpd_data + offset,
 191                                                         mb->un.varDmp.word_cnt);
 192                 offset += mb->un.varDmp.word_cnt;
 193         } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE);
 194         lpfc_parse_vpd(phba, lpfc_vpd_data, offset);
 195
 196         kfree(lpfc_vpd_data);
 197 out_free_context2:
 198         kfree(pmb->context2);
 199 out_free_mbox:
 200         mempool_free(pmb, phba->mbox_mem_pool);
 201         return 0;
 202 }
 203
 204 /************************************************************************/
 205 /*                                                                      */
 206 /*    lpfc_config_port_post                                             */
 207 /*    This routine will do LPFC initialization after the                */
 208 /*    CONFIG_PORT mailbox command. This will be initialized             */
 209 /*    as a SLI layer callback routine.                                  */
 210 /*    This routine returns 0 on success. Any other return value         */
 211 /*    indicates an error.                                               */
 212 /*                                                                      */
 213 /************************************************************************/
 214 int
 215 lpfc_config_port_post(struct lpfc_hba * phba)
 216 {
 217         LPFC_MBOXQ_t *pmb;
 218         MAILBOX_t *mb;
 219         struct lpfc_dmabuf *mp;
 220         struct lpfc_sli *psli = &phba->sli;
 221         uint32_t status, timeout;
 222         int i, j, rc;
 223
 224         pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 225         if (!pmb) {
 226                 phba->hba_state = LPFC_HBA_ERROR;
 227                 return -ENOMEM;
 228         }
 229         mb = &pmb->mb;
 230
 231         lpfc_config_link(phba, pmb);
 232         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 233         if (rc != MBX_SUCCESS) {
 234                 lpfc_printf_log(phba,
 235                                 KERN_ERR,
 236                                 LOG_INIT,
 237                                 "%d:0447 Adapter failed init, mbxCmd x%x "
 238                                 "CONFIG_LINK mbxStatus x%x\n",
 239                                 phba->brd_no,
 240                                 mb->mbxCommand, mb->mbxStatus);
 241                 phba->hba_state = LPFC_HBA_ERROR;
 242                 mempool_free( pmb, phba->mbox_mem_pool);
 243                 return -EIO;
 244         }
 245
 246         /* Get login parameters for NID.  */
 247         lpfc_read_sparam(phba, pmb);
 248         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 249                 lpfc_printf_log(phba,
 250                                 KERN_ERR,
 251                                 LOG_INIT,
 252                                 "%d:0448 Adapter failed init, mbxCmd x%x "
 253                                 "READ_SPARM mbxStatus x%x\n",
 254                                 phba->brd_no,
 255                                 mb->mbxCommand, mb->mbxStatus);
 256                 phba->hba_state = LPFC_HBA_ERROR;
 257                 mp = (struct lpfc_dmabuf *) pmb->context1;
 258                 mempool_free( pmb, phba->mbox_mem_pool);
 259                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 260                 kfree(mp);
 261                 return -EIO;
 262         }
 263
 264         mp = (struct lpfc_dmabuf *) pmb->context1;
 265
 266         memcpy(&phba->fc_sparam, mp->virt, sizeof (struct serv_parm));
 267         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 268         kfree(mp);
 269         pmb->context1 = NULL;
 270
 271         if (phba->cfg_soft_wwnn)
 272                 u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn);
 273         if (phba->cfg_soft_wwpn)
 274                 u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 275         memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
 276                sizeof (struct lpfc_name));
 277         memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
 278                sizeof (struct lpfc_name));
 279         /* If no serial number in VPD data, use low 6 bytes of WWNN */
 280         /* This should be consolidated into parse_vpd ? - mr */
 281         if (phba->SerialNumber[0] == 0) {
 282                 uint8_t *outptr;
 283
 284                 outptr = &phba->fc_nodename.u.s.IEEE[0];
 285                 for (i = 0; i < 12; i++) {
 286                         status = *outptr++;
 287                         j = ((status & 0xf0) >> 4);
 288                         if (j <= 9)
 289                                 phba->SerialNumber[i] =
 290                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 291                         else
 292                                 phba->SerialNumber[i] =
 293                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 294                         i++;
 295                         j = (status & 0xf);
 296                         if (j <= 9)
 297                                 phba->SerialNumber[i] =
 298                                     (char)((uint8_t) 0x30 + (uint8_t) j);
 299                         else
 300                                 phba->SerialNumber[i] =
 301                                     (char)((uint8_t) 0x61 + (uint8_t) (j - 10));
 302                 }
 303         }
 304
 305         lpfc_read_config(phba, pmb);
 306         if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
 307                 lpfc_printf_log(phba,
 308                                 KERN_ERR,
 309                                 LOG_INIT,
 310                                 "%d:0453 Adapter failed to init, mbxCmd x%x "
 311                                 "READ_CONFIG, mbxStatus x%x\n",
 312                                 phba->brd_no,
 313                                 mb->mbxCommand, mb->mbxStatus);
 314                 phba->hba_state = LPFC_HBA_ERROR;
 315                 mempool_free( pmb, phba->mbox_mem_pool);
 316                 return -EIO;
 317         }
 318
 319         /* Reset the DFT_HBA_Q_DEPTH to the max xri  */
 320         if (phba->cfg_hba_queue_depth > (mb->un.varRdConfig.max_xri+1))
 321                 phba->cfg_hba_queue_depth =
 322                         mb->un.varRdConfig.max_xri + 1;
 323
 324         phba->lmt = mb->un.varRdConfig.lmt;
 325
 326         /* Get the default values for Model Name and Description */
 327         lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 328
 329         if ((phba->cfg_link_speed > LINK_SPEED_10G)
 330             || ((phba->cfg_link_speed == LINK_SPEED_1G)
 331                 && !(phba->lmt & LMT_1Gb))
 332             || ((phba->cfg_link_speed == LINK_SPEED_2G)
 333                 && !(phba->lmt & LMT_2Gb))
 334             || ((phba->cfg_link_speed == LINK_SPEED_4G)
 335                 && !(phba->lmt & LMT_4Gb))
 336             || ((phba->cfg_link_speed == LINK_SPEED_8G)
 337                 && !(phba->lmt & LMT_8Gb))
 338             || ((phba->cfg_link_speed == LINK_SPEED_10G)
 339                 && !(phba->lmt & LMT_10Gb))) {
 340                 /* Reset link speed to auto */
 341                 lpfc_printf_log(phba,
 342                         KERN_WARNING,
 343                         LOG_LINK_EVENT,
 344                         "%d:1302 Invalid speed for this board: "
 345                         "Reset link speed to auto: x%x\n",
 346                         phba->brd_no,
 347                         phba->cfg_link_speed);
 348                         phba->cfg_link_speed = LINK_SPEED_AUTO;
 349         }
 350
 351         phba->hba_state = LPFC_LINK_DOWN;
 352
 353         /* Only process IOCBs on ring 0 till hba_state is READY */
 354         if (psli->ring[psli->extra_ring].cmdringaddr)
 355                 psli->ring[psli->extra_ring].flag |= LPFC_STOP_IOCB_EVENT;
 356         if (psli->ring[psli->fcp_ring].cmdringaddr)
 357                 psli->ring[psli->fcp_ring].flag |= LPFC_STOP_IOCB_EVENT;
 358         if (psli->ring[psli->next_ring].cmdringaddr)
 359                 psli->ring[psli->next_ring].flag |= LPFC_STOP_IOCB_EVENT;
 360
 361         /* Post receive buffers for desired rings */
 362         lpfc_post_rcv_buf(phba);
 363
 364         /* Enable appropriate host interrupts */
 365         spin_lock_irq(phba->host->host_lock);
 366         status = readl(phba->HCregaddr);
 367         status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA;
 368         if (psli->num_rings > 0)
 369                 status |= HC_R0INT_ENA;
 370         if (psli->num_rings > 1)
 371                 status |= HC_R1INT_ENA;
 372         if (psli->num_rings > 2)
 373                 status |= HC_R2INT_ENA;
 374         if (psli->num_rings > 3)
 375                 status |= HC_R3INT_ENA;
 376
 377         if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) &&
 378             (phba->cfg_poll & DISABLE_FCP_RING_INT))
 379                 status &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
 380
 381         writel(status, phba->HCregaddr);
 382         readl(phba->HCregaddr); /* flush */
 383         spin_unlock_irq(phba->host->host_lock);
 384
 385         /*
 386          * Setup the ring 0 (els)  timeout handler
 387          */
 388         timeout = phba->fc_ratov << 1;
 389         mod_timer(&phba->els_tmofunc, jiffies + HZ * timeout);
 390
 391         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 392         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 393         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 394         if (rc != MBX_SUCCESS) {
 395                 lpfc_printf_log(phba,
 396                                 KERN_ERR,
 397                                 LOG_INIT,
 398                                 "%d:0454 Adapter failed to init, mbxCmd x%x "
 399                                 "INIT_LINK, mbxStatus x%x\n",
 400                                 phba->brd_no,
 401                                 mb->mbxCommand, mb->mbxStatus);
 402
 403                 /* Clear all interrupt enable conditions */
 404                 writel(0, phba->HCregaddr);
 405                 readl(phba->HCregaddr); /* flush */
 406                 /* Clear all pending interrupts */
 407                 writel(0xffffffff, phba->HAregaddr);
 408                 readl(phba->HAregaddr); /* flush */
 409
 410                 phba->hba_state = LPFC_HBA_ERROR;
 411                 if (rc != MBX_BUSY)
 412                         mempool_free(pmb, phba->mbox_mem_pool);
 413                 return -EIO;
 414         }
 415         /* MBOX buffer will be freed in mbox compl */
 416
 417         return (0);
 418 }
 419
 420 static int
 421 lpfc_discovery_wait(struct lpfc_hba *phba)
 422 {
 423         int i = 0;
 424
 425         while ((phba->hba_state != LPFC_HBA_READY) ||
 426                (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
 427                ((phba->fc_map_cnt == 0) && (i<2)) ||
 428                (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
 429                 /* Check every second for 30 retries. */
 430                 i++;
 431                 if (i > 30) {
 432                         return -ETIMEDOUT;
 433                 }
 434                 if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
 435                         /* The link is down.  Set linkdown timeout */
 436                         return -ETIMEDOUT;
 437                 }
 438
 439                 /* Delay for 1 second to give discovery time to complete. */
 440                 msleep(1000);
 441
 442         }
 443
 444         return 0;
 445 }
 446
 447 /************************************************************************/
 448 /*                                                                      */
 449 /*    lpfc_hba_down_prep                                                */
 450 /*    This routine will do LPFC uninitialization before the             */
 451 /*    HBA is reset when bringing down the SLI Layer. This will be       */
 452 /*    initialized as a SLI layer callback routine.                      */
 453 /*    This routine returns 0 on success. Any other return value         */
 454 /*    indicates an error.                                               */
 455 /*                                                                      */
 456 /************************************************************************/
 457 int
 458 lpfc_hba_down_prep(struct lpfc_hba * phba)
 459 {
 460         /* Disable interrupts */
 461         writel(0, phba->HCregaddr);
 462         readl(phba->HCregaddr); /* flush */
 463
 464         /* Cleanup potential discovery resources */
 465         lpfc_els_flush_rscn(phba);
 466         lpfc_els_flush_cmd(phba);
 467         lpfc_disc_flush_list(phba);
 468
 469         return (0);
 470 }
 471
 472 /************************************************************************/
 473 /*                                                                      */
 474 /*    lpfc_hba_down_post                                                */
 475 /*    This routine will do uninitialization after the HBA is reset      */
 476 /*    when bringing down the SLI Layer.                                 */
 477 /*    This routine returns 0 on success. Any other return value         */
 478 /*    indicates an error.                                               */
 479 /*                                                                      */
 480 /************************************************************************/
 481 int
 482 lpfc_hba_down_post(struct lpfc_hba * phba)
 483 {
 484         struct lpfc_sli *psli = &phba->sli;
 485         struct lpfc_sli_ring *pring;
 486         struct lpfc_dmabuf *mp, *next_mp;
 487         int i;
 488
 489         /* Cleanup preposted buffers on the ELS ring */
 490         pring = &psli->ring[LPFC_ELS_RING];
 491         list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 492                 list_del(&mp->list);
 493                 pring->postbufq_cnt--;
 494                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 495                 kfree(mp);
 496         }
 497
 498         for (i = 0; i < psli->num_rings; i++) {
 499                 pring = &psli->ring[i];
 500                 lpfc_sli_abort_iocb_ring(phba, pring);
 501         }
 502
 503         return 0;
 504 }
 505
 506 /************************************************************************/
 507 /*                                                                      */
 508 /*    lpfc_handle_eratt                                                 */
 509 /*    This routine will handle processing a Host Attention              */
 510 /*    Error Status event. This will be initialized                      */
 511 /*    as a SLI layer callback routine.                                  */
 512 /*                                                                      */
 513 /************************************************************************/
 514 void
 515 lpfc_handle_eratt(struct lpfc_hba * phba)
 516 {
 517         struct lpfc_sli *psli = &phba->sli;
 518         struct lpfc_sli_ring  *pring;
 519         uint32_t event_data;
 520         /* If the pci channel is offline, ignore possible errors,
 521          * since we cannot communicate with the pci card anyway. */
 522         if (pci_channel_offline(phba->pcidev))
 523                 return;
 524
 525         if (phba->work_hs & HS_FFER6 ||
 526             phba->work_hs & HS_FFER5) {
 527                 /* Re-establishing Link */
 528                 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
 529                                 "%d:1301 Re-establishing Link "
 530                                 "Data: x%x x%x x%x\n",
 531                                 phba->brd_no, phba->work_hs,
 532                                 phba->work_status[0], phba->work_status[1]);
 533                 spin_lock_irq(phba->host->host_lock);
 534                 phba->fc_flag |= FC_ESTABLISH_LINK;
 535                 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 536                 spin_unlock_irq(phba->host->host_lock);
 537
 538                 /*
 539                 * Firmware stops when it triggled erratt with HS_FFER6.
 540                 * That could cause the I/Os dropped by the firmware.
 541                 * Error iocb (I/O) on txcmplq and let the SCSI layer
 542                 * retry it after re-establishing link.
 543                 */
 544                 pring = &psli->ring[psli->fcp_ring];
 545                 lpfc_sli_abort_iocb_ring(phba, pring);
 546
 547
 548                 /*
 549                  * There was a firmware error.  Take the hba offline and then
 550                  * attempt to restart it.
 551                  */
 552                 lpfc_offline(phba);
 553                 lpfc_sli_brdrestart(phba);
 554                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
 555                         mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
 556                         return;
 557                 }
 558         } else {
 559                 /* The if clause above forces this code path when the status
 560                  * failure is a value other than FFER6.  Do not call the offline
 561                  *  twice. This is the adapter hardware error path.
 562                  */
 563                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 564                                 "%d:0457 Adapter Hardware Error "
 565                                 "Data: x%x x%x x%x\n",
 566                                 phba->brd_no, phba->work_hs,
 567                                 phba->work_status[0], phba->work_status[1]);
 568
 569                 event_data = FC_REG_DUMP_EVENT;
 570                 fc_host_post_vendor_event(phba->host, fc_get_event_number(),
 571                                 sizeof(event_data), (char *) &event_data,
 572                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
 573
 574                 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 575                 lpfc_offline(phba);
 576                 phba->hba_state = LPFC_HBA_ERROR;
 577                 lpfc_hba_down_post(phba);
 578         }
 579 }
 580
 581 /************************************************************************/
 582 /*                                                                      */
 583 /*    lpfc_handle_latt                                                  */
 584 /*    This routine will handle processing a Host Attention              */
 585 /*    Link Status event. This will be initialized                       */
 586 /*    as a SLI layer callback routine.                                  */
 587 /*                                                                      */
 588 /************************************************************************/
 589 void
 590 lpfc_handle_latt(struct lpfc_hba * phba)
 591 {
 592         struct lpfc_sli *psli = &phba->sli;
 593         LPFC_MBOXQ_t *pmb;
 594         volatile uint32_t control;
 595         struct lpfc_dmabuf *mp;
 596         int rc = -ENOMEM;
 597
 598         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 599         if (!pmb)
 600                 goto lpfc_handle_latt_err_exit;
 601
 602         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 603         if (!mp)
 604                 goto lpfc_handle_latt_free_pmb;
 605
 606         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
 607         if (!mp->virt)
 608                 goto lpfc_handle_latt_free_mp;
 609
 610         rc = -EIO;
 611
 612         /* Cleanup any outstanding ELS commands */
 613         lpfc_els_flush_cmd(phba);
 614
 615         psli->slistat.link_event++;
 616         lpfc_read_la(phba, pmb, mp);
 617         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
 618         rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 619         if (rc == MBX_NOT_FINISHED)
 620                 goto lpfc_handle_latt_free_mbuf;
 621
 622         /* Clear Link Attention in HA REG */
 623         spin_lock_irq(phba->host->host_lock);
 624         writel(HA_LATT, phba->HAregaddr);
 625         readl(phba->HAregaddr); /* flush */
 626         spin_unlock_irq(phba->host->host_lock);
 627
 628         return;
 629
 630 lpfc_handle_latt_free_mbuf:
 631         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 632 lpfc_handle_latt_free_mp:
 633         kfree(mp);
 634 lpfc_handle_latt_free_pmb:
 635         mempool_free(pmb, phba->mbox_mem_pool);
 636 lpfc_handle_latt_err_exit:
 637         /* Enable Link attention interrupts */
 638         spin_lock_irq(phba->host->host_lock);
 639         psli->sli_flag |= LPFC_PROCESS_LA;
 640         control = readl(phba->HCregaddr);
 641         control |= HC_LAINT_ENA;
 642         writel(control, phba->HCregaddr);
 643         readl(phba->HCregaddr); /* flush */
 644
 645         /* Clear Link Attention in HA REG */
 646         writel(HA_LATT, phba->HAregaddr);
 647         readl(phba->HAregaddr); /* flush */
 648         spin_unlock_irq(phba->host->host_lock);
 649         lpfc_linkdown(phba);
 650         phba->hba_state = LPFC_HBA_ERROR;
 651
 652         /* The other case is an error from issue_mbox */
 653         if (rc == -ENOMEM)
 654                 lpfc_printf_log(phba,
 655                                 KERN_WARNING,
 656                                 LOG_MBOX,
 657                                 "%d:0300 READ_LA: no buffers\n",
 658                                 phba->brd_no);
 659
 660         return;
 661 }
 662
 663 /************************************************************************/
 664 /*                                                                      */
 665 /*   lpfc_parse_vpd                                                     */
 666 /*   This routine will parse the VPD data                               */
 667 /*                                                                      */
 668 /************************************************************************/
 669 static int
 670 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len)
 671 {
 672         uint8_t lenlo, lenhi;
 673         int Length;
 674         int i, j;
 675         int finished = 0;
 676         int index = 0;
 677
 678         if (!vpd)
 679                 return 0;
 680
 681         /* Vital Product */
 682         lpfc_printf_log(phba,
 683                         KERN_INFO,
 684                         LOG_INIT,
 685                         "%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
 686                         phba->brd_no,
 687                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
 688                         (uint32_t) vpd[3]);
 689         while (!finished && (index < (len - 4))) {
 690                 switch (vpd[index]) {
 691                 case 0x82:
 692                 case 0x91:
 693                         index += 1;
 694                         lenlo = vpd[index];
 695                         index += 1;
 696                         lenhi = vpd[index];
 697                         index += 1;
 698                         i = ((((unsigned short)lenhi) << 8) + lenlo);
 699                         index += i;
 700                         break;
 701                 case 0x90:
 702                         index += 1;
 703                         lenlo = vpd[index];
 704                         index += 1;
 705                         lenhi = vpd[index];
 706                         index += 1;
 707                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
 708                         if (Length > len - index)
 709                                 Length = len - index;
 710                         while (Length > 0) {
 711                         /* Look for Serial Number */
 712                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
 713                                 index += 2;
 714                                 i = vpd[index];
 715                                 index += 1;
 716                                 j = 0;
 717                                 Length -= (3+i);
 718                                 while(i--) {
 719                                         phba->SerialNumber[j++] = vpd[index++];
 720                                         if (j == 31)
 721                                                 break;
 722                                 }
 723                                 phba->SerialNumber[j] = 0;
 724                                 continue;
 725                         }
 726                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
 727                                 phba->vpd_flag |= VPD_MODEL_DESC;
 728                                 index += 2;
 729                                 i = vpd[index];
 730                                 index += 1;
 731                                 j = 0;
 732                                 Length -= (3+i);
 733                                 while(i--) {
 734                                         phba->ModelDesc[j++] = vpd[index++];
 735                                         if (j == 255)
 736                                                 break;
 737                                 }
 738                                 phba->ModelDesc[j] = 0;
 739                                 continue;
 740                         }
 741                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
 742                                 phba->vpd_flag |= VPD_MODEL_NAME;
 743                                 index += 2;
 744                                 i = vpd[index];
 745                                 index += 1;
 746                                 j = 0;
 747                                 Length -= (3+i);
 748                                 while(i--) {
 749                                         phba->ModelName[j++] = vpd[index++];
 750                                         if (j == 79)
 751                                                 break;
 752                                 }
 753                                 phba->ModelName[j] = 0;
 754                                 continue;
 755                         }
 756                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
 757                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
 758                                 index += 2;
 759                                 i = vpd[index];
 760                                 index += 1;
 761                                 j = 0;
 762                                 Length -= (3+i);
 763                                 while(i--) {
 764                                         phba->ProgramType[j++] = vpd[index++];
 765                                         if (j == 255)
 766                                                 break;
 767                                 }
 768                                 phba->ProgramType[j] = 0;
 769                                 continue;
 770                         }
 771                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
 772                                 phba->vpd_flag |= VPD_PORT;
 773                                 index += 2;
 774                                 i = vpd[index];
 775                                 index += 1;
 776                                 j = 0;
 777                                 Length -= (3+i);
 778                                 while(i--) {
 779                                 phba->Port[j++] = vpd[index++];
 780                                 if (j == 19)
 781                                         break;
 782                                 }
 783                                 phba->Port[j] = 0;
 784                                 continue;
 785                         }
 786                         else {
 787                                 index += 2;
 788                                 i = vpd[index];
 789                                 index += 1;
 790                                 index += i;
 791                                 Length -= (3 + i);
 792                         }
 793                 }
 794                 finished = 0;
 795                 break;
 796                 case 0x78:
 797                         finished = 1;
 798                         break;
 799                 default:
 800                         index ++;
 801                         break;
 802                 }
 803         }
 804
 805         return(1);
 806 }
 807
 808 static void
 809 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 810 {
 811         lpfc_vpd_t *vp;
 812         uint16_t dev_id = phba->pcidev->device;
 813         int max_speed;
 814         struct {
 815                 char * name;
 816                 int    max_speed;
 817                 char * bus;
 818         } m = {"<Unknown>", 0, ""};
 819
 820         if (mdp && mdp[0] != '\0'
 821                 && descp && descp[0] != '\0')
 822                 return;
 823
 824         if (phba->lmt & LMT_10Gb)
 825                 max_speed = 10;
 826         else if (phba->lmt & LMT_8Gb)
 827                 max_speed = 8;
 828         else if (phba->lmt & LMT_4Gb)
 829                 max_speed = 4;
 830         else if (phba->lmt & LMT_2Gb)
 831                 max_speed = 2;
 832         else
 833                 max_speed = 1;
 834
 835         vp = &phba->vpd;
 836
 837         switch (dev_id) {
 838         case PCI_DEVICE_ID_FIREFLY:
 839                 m = (typeof(m)){"LP6000", max_speed, "PCI"};
 840                 break;
 841         case PCI_DEVICE_ID_SUPERFLY:
 842                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
 843                         m = (typeof(m)){"LP7000", max_speed,  "PCI"};
 844                 else
 845                         m = (typeof(m)){"LP7000E", max_speed, "PCI"};
 846                 break;
 847         case PCI_DEVICE_ID_DRAGONFLY:
 848                 m = (typeof(m)){"LP8000", max_speed, "PCI"};
 849                 break;
 850         case PCI_DEVICE_ID_CENTAUR:
 851                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
 852                         m = (typeof(m)){"LP9002", max_speed, "PCI"};
 853                 else
 854                         m = (typeof(m)){"LP9000", max_speed, "PCI"};
 855                 break;
 856         case PCI_DEVICE_ID_RFLY:
 857                 m = (typeof(m)){"LP952", max_speed, "PCI"};
 858                 break;
 859         case PCI_DEVICE_ID_PEGASUS:
 860                 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
 861                 break;
 862         case PCI_DEVICE_ID_THOR:
 863                 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
 864                 break;
 865         case PCI_DEVICE_ID_VIPER:
 866                 m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
 867                 break;
 868         case PCI_DEVICE_ID_PFLY:
 869                 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
 870                 break;
 871         case PCI_DEVICE_ID_TFLY:
 872                 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
 873                 break;
 874         case PCI_DEVICE_ID_HELIOS:
 875                 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
 876                 break;
 877         case PCI_DEVICE_ID_HELIOS_SCSP:
 878                 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
 879                 break;
 880         case PCI_DEVICE_ID_HELIOS_DCSP:
 881                 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
 882                 break;
 883         case PCI_DEVICE_ID_NEPTUNE:
 884                 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
 885                 break;
 886         case PCI_DEVICE_ID_NEPTUNE_SCSP:
 887                 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
 888                 break;
 889         case PCI_DEVICE_ID_NEPTUNE_DCSP:
 890                 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
 891                 break;
 892         case PCI_DEVICE_ID_BMID:
 893                 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
 894                 break;
 895         case PCI_DEVICE_ID_BSMB:
 896                 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
 897                 break;
 898         case PCI_DEVICE_ID_ZEPHYR:
 899                 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 900                 break;
 901         case PCI_DEVICE_ID_ZEPHYR_SCSP:
 902                 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 903                 break;
 904         case PCI_DEVICE_ID_ZEPHYR_DCSP:
 905                 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
 906                 break;
 907         case PCI_DEVICE_ID_ZMID:
 908                 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
 909                 break;
 910         case PCI_DEVICE_ID_ZSMB:
 911                 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
 912                 break;
 913         case PCI_DEVICE_ID_LP101:
 914                 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
 915                 break;
 916         case PCI_DEVICE_ID_LP10000S:
 917                 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
 918                 break;
 919         case PCI_DEVICE_ID_LP11000S:
 920                 m = (typeof(m)){"LP11000-S", max_speed,
 921                         "PCI-X2"};
 922                 break;
 923         case PCI_DEVICE_ID_LPE11000S:
 924                 m = (typeof(m)){"LPe11000-S", max_speed,
 925                         "PCIe"};
 926                 break;
 927         default:
 928                 m = (typeof(m)){ NULL };
 929                 break;
 930         }
 931
 932         if (mdp && mdp[0] == '\0')
 933                 snprintf(mdp, 79,"%s", m.name);
 934         if (descp && descp[0] == '\0')
 935                 snprintf(descp, 255,
 936                          "Emulex %s %dGb %s Fibre Channel Adapter",
 937                          m.name, m.max_speed, m.bus);
 938 }
 939
 940 /**************************************************/
 941 /*   lpfc_post_buffer                             */
 942 /*                                                */
 943 /*   This routine will post count buffers to the  */
 944 /*   ring with the QUE_RING_BUF_CN command. This  */
 945 /*   allows 3 buffers / command to be posted.     */
 946 /*   Returns the number of buffers NOT posted.    */
 947 /**************************************************/
 948 int
 949 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
 950                  int type)
 951 {
 952         IOCB_t *icmd;
 953         struct lpfc_iocbq *iocb;
 954         struct lpfc_dmabuf *mp1, *mp2;
 955
 956         cnt += pring->missbufcnt;
 957
 958         /* While there are buffers to post */
 959         while (cnt > 0) {
 960                 /* Allocate buffer for  command iocb */
 961                 spin_lock_irq(phba->host->host_lock);
 962                 iocb = lpfc_sli_get_iocbq(phba);
 963                 spin_unlock_irq(phba->host->host_lock);
 964                 if (iocb == NULL) {
 965                         pring->missbufcnt = cnt;
 966                         return cnt;
 967                 }
 968                 icmd = &iocb->iocb;
 969
 970                 /* 2 buffers can be posted per command */
 971                 /* Allocate buffer to post */
 972                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 973                 if (mp1)
 974                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 975                                                 &mp1->phys);
 976                 if (mp1 == 0 || mp1->virt == 0) {
 977                         kfree(mp1);
 978                         spin_lock_irq(phba->host->host_lock);
 979                         lpfc_sli_release_iocbq(phba, iocb);
 980                         spin_unlock_irq(phba->host->host_lock);
 981                         pring->missbufcnt = cnt;
 982                         return cnt;
 983                 }
 984
 985                 INIT_LIST_HEAD(&mp1->list);
 986                 /* Allocate buffer to post */
 987                 if (cnt > 1) {
 988                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 989                         if (mp2)
 990                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 991                                                             &mp2->phys);
 992                         if (mp2 == 0 || mp2->virt == 0) {
 993                                 kfree(mp2);
 994                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
 995                                 kfree(mp1);
 996                                 spin_lock_irq(phba->host->host_lock);
 997                                 lpfc_sli_release_iocbq(phba, iocb);
 998                                 spin_unlock_irq(phba->host->host_lock);
 999                                 pring->missbufcnt = cnt;
1000                                 return cnt;
1001                         }
1002
1003                         INIT_LIST_HEAD(&mp2->list);
1004                 } else {
1005                         mp2 = NULL;
1006                 }
1007
1008                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1009                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1010                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1011                 icmd->ulpBdeCount = 1;
1012                 cnt--;
1013                 if (mp2) {
1014                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1015                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1016                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1017                         cnt--;
1018                         icmd->ulpBdeCount = 2;
1019                 }
1020
1021                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1022                 icmd->ulpLe = 1;
1023
1024                 spin_lock_irq(phba->host->host_lock);
1025                 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
1026                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1027                         kfree(mp1);
1028                         cnt++;
1029                         if (mp2) {
1030                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1031                                 kfree(mp2);
1032                                 cnt++;
1033                         }
1034                         lpfc_sli_release_iocbq(phba, iocb);
1035                         pring->missbufcnt = cnt;
1036                         spin_unlock_irq(phba->host->host_lock);
1037                         return cnt;
1038                 }
1039                 spin_unlock_irq(phba->host->host_lock);
1040                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1041                 if (mp2) {
1042                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1043                 }
1044         }
1045         pring->missbufcnt = 0;
1046         return 0;
1047 }
1048
1049 /************************************************************************/
1050 /*                                                                      */
1051 /*   lpfc_post_rcv_buf                                                  */
1052 /*   This routine post initial rcv buffers to the configured rings      */
1053 /*                                                                      */
1054 /************************************************************************/
1055 static int
1056 lpfc_post_rcv_buf(struct lpfc_hba * phba)
1057 {
1058         struct lpfc_sli *psli = &phba->sli;
1059
1060         /* Ring 0, ELS / CT buffers */
1061         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
1062         /* Ring 2 - FCP no buffers needed */
1063
1064         return 0;
1065 }
1066
1067 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1068
1069 /************************************************************************/
1070 /*                                                                      */
1071 /*   lpfc_sha_init                                                      */
1072 /*                                                                      */
1073 /************************************************************************/
1074 static void
1075 lpfc_sha_init(uint32_t * HashResultPointer)
1076 {
1077         HashResultPointer[0] = 0x67452301;
1078         HashResultPointer[1] = 0xEFCDAB89;
1079         HashResultPointer[2] = 0x98BADCFE;
1080         HashResultPointer[3] = 0x10325476;
1081         HashResultPointer[4] = 0xC3D2E1F0;
1082 }
1083
1084 /************************************************************************/
1085 /*                                                                      */
1086 /*   lpfc_sha_iterate                                                   */
1087 /*                                                                      */
1088 /************************************************************************/
1089 static void
1090 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1091 {
1092         int t;
1093         uint32_t TEMP;
1094         uint32_t A, B, C, D, E;
1095         t = 16;
1096         do {
1097                 HashWorkingPointer[t] =
1098                     S(1,
1099                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1100                                                                      8] ^
1101                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1102         } while (++t <= 79);
1103         t = 0;
1104         A = HashResultPointer[0];
1105         B = HashResultPointer[1];
1106         C = HashResultPointer[2];
1107         D = HashResultPointer[3];
1108         E = HashResultPointer[4];
1109
1110         do {
1111                 if (t < 20) {
1112                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1113                 } else if (t < 40) {
1114                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1115                 } else if (t < 60) {
1116                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1117                 } else {
1118                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1119                 }
1120                 TEMP += S(5, A) + E + HashWorkingPointer[t];
1121                 E = D;
1122                 D = C;
1123                 C = S(30, B);
1124                 B = A;
1125                 A = TEMP;
1126         } while (++t <= 79);
1127
1128         HashResultPointer[0] += A;
1129         HashResultPointer[1] += B;
1130         HashResultPointer[2] += C;
1131         HashResultPointer[3] += D;
1132         HashResultPointer[4] += E;
1133
1134 }
1135
1136 /************************************************************************/
1137 /*                                                                      */
1138 /*   lpfc_challenge_key                                                 */
1139 /*                                                                      */
1140 /************************************************************************/
1141 static void
1142 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1143 {
1144         *HashWorking = (*RandomChallenge ^ *HashWorking);
1145 }
1146
1147 /************************************************************************/
1148 /*                                                                      */
1149 /*   lpfc_hba_init                                                      */
1150 /*                                                                      */
1151 /************************************************************************/
1152 void
1153 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1154 {
1155         int t;
1156         uint32_t *HashWorking;
1157         uint32_t *pwwnn = phba->wwnn;
1158
1159         HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
1160         if (!HashWorking)
1161                 return;
1162
1163         memset(HashWorking, 0, (80 * sizeof(uint32_t)));
1164         HashWorking[0] = HashWorking[78] = *pwwnn++;
1165         HashWorking[1] = HashWorking[79] = *pwwnn;
1166
1167         for (t = 0; t < 7; t++)
1168                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1169
1170         lpfc_sha_init(hbainit);
1171         lpfc_sha_iterate(hbainit, HashWorking);
1172         kfree(HashWorking);
1173 }
1174
1175 static void
1176 lpfc_cleanup(struct lpfc_hba * phba)
1177 {
1178         struct lpfc_nodelist *ndlp, *next_ndlp;
1179
1180         /* clean up phba - lpfc specific */
1181         lpfc_can_disctmo(phba);
1182         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
1183                                 nlp_listp) {
1184                 lpfc_nlp_remove(phba, ndlp);
1185         }
1186
1187         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1188                                  nlp_listp) {
1189                 lpfc_nlp_remove(phba, ndlp);
1190         }
1191
1192         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
1193                                 nlp_listp) {
1194                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1195         }
1196
1197         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1198                                 nlp_listp) {
1199                 lpfc_nlp_remove(phba, ndlp);
1200         }
1201
1202         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1203                                 nlp_listp) {
1204                 lpfc_nlp_remove(phba, ndlp);
1205         }
1206
1207         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
1208                                 nlp_listp) {
1209                 lpfc_nlp_remove(phba, ndlp);
1210         }
1211
1212         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1213                                 nlp_listp) {
1214                 lpfc_nlp_remove(phba, ndlp);
1215         }
1216
1217         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1218                                 nlp_listp) {
1219                 lpfc_nlp_remove(phba, ndlp);
1220         }
1221
1222         INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1223         INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1224         INIT_LIST_HEAD(&phba->fc_unused_list);
1225         INIT_LIST_HEAD(&phba->fc_plogi_list);
1226         INIT_LIST_HEAD(&phba->fc_adisc_list);
1227         INIT_LIST_HEAD(&phba->fc_reglogin_list);
1228         INIT_LIST_HEAD(&phba->fc_prli_list);
1229         INIT_LIST_HEAD(&phba->fc_npr_list);
1230
1231         phba->fc_map_cnt   = 0;
1232         phba->fc_unmap_cnt = 0;
1233         phba->fc_plogi_cnt = 0;
1234         phba->fc_adisc_cnt = 0;
1235         phba->fc_reglogin_cnt = 0;
1236         phba->fc_prli_cnt  = 0;
1237         phba->fc_npr_cnt   = 0;
1238         phba->fc_unused_cnt= 0;
1239         return;
1240 }
1241
1242 static void
1243 lpfc_establish_link_tmo(unsigned long ptr)
1244 {
1245         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
1246         unsigned long iflag;
1247
1248
1249         /* Re-establishing Link, timer expired */
1250         lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1251                         "%d:1300 Re-establishing Link, timer expired "
1252                         "Data: x%x x%x\n",
1253                         phba->brd_no, phba->fc_flag, phba->hba_state);
1254         spin_lock_irqsave(phba->host->host_lock, iflag);
1255         phba->fc_flag &= ~FC_ESTABLISH_LINK;
1256         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1257 }
1258
1259 static int
1260 lpfc_stop_timer(struct lpfc_hba * phba)
1261 {
1262         struct lpfc_sli *psli = &phba->sli;
1263
1264         del_timer_sync(&phba->fcp_poll_timer);
1265         del_timer_sync(&phba->fc_estabtmo);
1266         del_timer_sync(&phba->fc_disctmo);
1267         del_timer_sync(&phba->fc_fdmitmo);
1268         del_timer_sync(&phba->els_tmofunc);
1269         psli = &phba->sli;
1270         del_timer_sync(&psli->mbox_tmo);
1271         return(1);
1272 }
1273
1274 int
1275 lpfc_online(struct lpfc_hba * phba)
1276 {
1277         if (!phba)
1278                 return 0;
1279
1280         if (!(phba->fc_flag & FC_OFFLINE_MODE))
1281                 return 0;
1282
1283         lpfc_printf_log(phba,
1284                        KERN_WARNING,
1285                        LOG_INIT,
1286                        "%d:0458 Bring Adapter online\n",
1287                        phba->brd_no);
1288
1289         if (!lpfc_sli_queue_setup(phba))
1290                 return 1;
1291
1292         if (lpfc_sli_hba_setup(phba))   /* Initialize the HBA */
1293                 return 1;
1294
1295         spin_lock_irq(phba->host->host_lock);
1296         phba->fc_flag &= ~FC_OFFLINE_MODE;
1297         spin_unlock_irq(phba->host->host_lock);
1298
1299         return 0;
1300 }
1301
1302 int
1303 lpfc_offline(struct lpfc_hba * phba)
1304 {
1305         struct lpfc_sli_ring *pring;
1306         struct lpfc_sli *psli;
1307         unsigned long iflag;
1308         int i;
1309         int cnt = 0;
1310
1311         if (!phba)
1312                 return 0;
1313
1314         if (phba->fc_flag & FC_OFFLINE_MODE)
1315                 return 0;
1316
1317         psli = &phba->sli;
1318
1319         lpfc_linkdown(phba);
1320         lpfc_sli_flush_mbox_queue(phba);
1321
1322         for (i = 0; i < psli->num_rings; i++) {
1323                 pring = &psli->ring[i];
1324                 /* The linkdown event takes 30 seconds to timeout. */
1325                 while (pring->txcmplq_cnt) {
1326                         msleep(10);
1327                         if (cnt++ > 3000) {
1328                                 lpfc_printf_log(phba,
1329                                         KERN_WARNING, LOG_INIT,
1330                                         "%d:0466 Outstanding IO when "
1331                                         "bringing Adapter offline\n",
1332                                         phba->brd_no);
1333                                 break;
1334                         }
1335                 }
1336         }
1337
1338
1339         /* stop all timers associated with this hba */
1340         lpfc_stop_timer(phba);
1341         phba->work_hba_events = 0;
1342         phba->work_ha = 0;
1343
1344         lpfc_printf_log(phba,
1345                        KERN_WARNING,
1346                        LOG_INIT,
1347                        "%d:0460 Bring Adapter offline\n",
1348                        phba->brd_no);
1349
1350         /* Bring down the SLI Layer and cleanup.  The HBA is offline
1351            now.  */
1352         lpfc_sli_hba_down(phba);
1353         lpfc_cleanup(phba);
1354         spin_lock_irqsave(phba->host->host_lock, iflag);
1355         phba->fc_flag |= FC_OFFLINE_MODE;
1356         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1357         return 0;
1358 }
1359
1360 /******************************************************************************
1361 * Function name: lpfc_scsi_free
1362 *
1363 * Description: Called from lpfc_pci_remove_one free internal driver resources
1364 *
1365 ******************************************************************************/
1366 static int
1367 lpfc_scsi_free(struct lpfc_hba * phba)
1368 {
1369         struct lpfc_scsi_buf *sb, *sb_next;
1370         struct lpfc_iocbq *io, *io_next;
1371
1372         spin_lock_irq(phba->host->host_lock);
1373         /* Release all the lpfc_scsi_bufs maintained by this host. */
1374         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
1375                 list_del(&sb->list);
1376                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
1377                                                                 sb->dma_handle);
1378                 kfree(sb);
1379                 phba->total_scsi_bufs--;
1380         }
1381
1382         /* Release all the lpfc_iocbq entries maintained by this host. */
1383         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
1384                 list_del(&io->list);
1385                 kfree(io);
1386                 phba->total_iocbq_bufs--;
1387         }
1388
1389         spin_unlock_irq(phba->host->host_lock);
1390
1391         return 0;
1392 }
1393
1394
1395 static int __devinit
1396 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1397 {
1398         struct Scsi_Host *host;
1399         struct lpfc_hba  *phba;
1400         struct lpfc_sli  *psli;
1401         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
1402         unsigned long bar0map_len, bar2map_len;
1403         int error = -ENODEV, retval;
1404         int i;
1405         uint16_t iotag;
1406
1407         if (pci_enable_device(pdev))
1408                 goto out;
1409         if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
1410                 goto out_disable_device;
1411
1412         host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
1413         if (!host)
1414                 goto out_release_regions;
1415
1416         phba = (struct lpfc_hba*)host->hostdata;
1417         memset(phba, 0, sizeof (struct lpfc_hba));
1418         phba->host = host;
1419
1420         phba->fc_flag |= FC_LOADING;
1421         phba->pcidev = pdev;
1422
1423         /* Assign an unused board number */
1424         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
1425                 goto out_put_host;
1426
1427         error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
1428         if (error)
1429                 goto out_put_host;
1430
1431         host->unique_id = phba->brd_no;
1432
1433         /* Initialize timers used by driver */
1434         init_timer(&phba->fc_estabtmo);
1435         phba->fc_estabtmo.function = lpfc_establish_link_tmo;
1436         phba->fc_estabtmo.data = (unsigned long)phba;
1437         init_timer(&phba->fc_disctmo);
1438         phba->fc_disctmo.function = lpfc_disc_timeout;
1439         phba->fc_disctmo.data = (unsigned long)phba;
1440
1441         init_timer(&phba->fc_fdmitmo);
1442         phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
1443         phba->fc_fdmitmo.data = (unsigned long)phba;
1444         init_timer(&phba->els_tmofunc);
1445         phba->els_tmofunc.function = lpfc_els_timeout;
1446         phba->els_tmofunc.data = (unsigned long)phba;
1447         psli = &phba->sli;
1448         init_timer(&psli->mbox_tmo);
1449         psli->mbox_tmo.function = lpfc_mbox_timeout;
1450         psli->mbox_tmo.data = (unsigned long)phba;
1451
1452         init_timer(&phba->fcp_poll_timer);
1453         phba->fcp_poll_timer.function = lpfc_poll_timeout;
1454         phba->fcp_poll_timer.data = (unsigned long)phba;
1455
1456         /*
1457          * Get all the module params for configuring this host and then
1458          * establish the host parameters.
1459          */
1460         lpfc_get_cfgparam(phba);
1461
1462         host->max_id = LPFC_MAX_TARGET;
1463         host->max_lun = phba->cfg_max_luns;
1464         host->this_id = -1;
1465
1466         /* Initialize all internally managed lists. */
1467         INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1468         INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1469         INIT_LIST_HEAD(&phba->fc_unused_list);
1470         INIT_LIST_HEAD(&phba->fc_plogi_list);
1471         INIT_LIST_HEAD(&phba->fc_adisc_list);
1472         INIT_LIST_HEAD(&phba->fc_reglogin_list);
1473         INIT_LIST_HEAD(&phba->fc_prli_list);
1474         INIT_LIST_HEAD(&phba->fc_npr_list);
1475
1476
1477         pci_set_master(pdev);
1478         retval = pci_set_mwi(pdev);
1479         if (retval)
1480                 dev_printk(KERN_WARNING, &pdev->dev,
1481                            "Warning: pci_set_mwi returned %d\n", retval);
1482
1483         if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
1484                 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
1485                         goto out_idr_remove;
1486
1487         /*
1488          * Get the bus address of Bar0 and Bar2 and the number of bytes
1489          * required by each mapping.
1490          */
1491         phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
1492         bar0map_len        = pci_resource_len(phba->pcidev, 0);
1493
1494         phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
1495         bar2map_len        = pci_resource_len(phba->pcidev, 2);
1496
1497         /* Map HBA SLIM to a kernel virtual address. */
1498         phba->slim_memmap_p      = ioremap(phba->pci_bar0_map, bar0map_len);
1499         if (!phba->slim_memmap_p) {
1500                 error = -ENODEV;
1501                 dev_printk(KERN_ERR, &pdev->dev,
1502                            "ioremap failed for SLIM memory.\n");
1503                 goto out_idr_remove;
1504         }
1505
1506         /* Map HBA Control Registers to a kernel virtual address. */
1507         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1508         if (!phba->ctrl_regs_memmap_p) {
1509                 error = -ENODEV;
1510                 dev_printk(KERN_ERR, &pdev->dev,
1511                            "ioremap failed for HBA control registers.\n");
1512                 goto out_iounmap_slim;
1513         }
1514
1515         /* Allocate memory for SLI-2 structures */
1516         phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
1517                                           &phba->slim2p_mapping, GFP_KERNEL);
1518         if (!phba->slim2p)
1519                 goto out_iounmap;
1520
1521         memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
1522
1523         /* Initialize the SLI Layer to run with lpfc HBAs. */
1524         lpfc_sli_setup(phba);
1525         lpfc_sli_queue_setup(phba);
1526
1527         error = lpfc_mem_alloc(phba);
1528         if (error)
1529                 goto out_free_slim;
1530
1531         /* Initialize and populate the iocb list per host.  */
1532         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
1533         for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
1534                 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
1535                 if (iocbq_entry == NULL) {
1536                         printk(KERN_ERR "%s: only allocated %d iocbs of "
1537                                 "expected %d count. Unloading driver.\n",
1538                                 __FUNCTION__, i, LPFC_IOCB_LIST_CNT);
1539                         error = -ENOMEM;
1540                         goto out_free_iocbq;
1541                 }
1542
1543                 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1544                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
1545                 if (iotag == 0) {
1546                         kfree (iocbq_entry);
1547                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
1548                                "Unloading driver.\n",
1549                                 __FUNCTION__);
1550                         error = -ENOMEM;
1551                         goto out_free_iocbq;
1552                 }
1553                 spin_lock_irq(phba->host->host_lock);
1554                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
1555                 phba->total_iocbq_bufs++;
1556                 spin_unlock_irq(phba->host->host_lock);
1557         }
1558
1559         /* Initialize HBA structure */
1560         phba->fc_edtov = FF_DEF_EDTOV;
1561         phba->fc_ratov = FF_DEF_RATOV;
1562         phba->fc_altov = FF_DEF_ALTOV;
1563         phba->fc_arbtov = FF_DEF_ARBTOV;
1564
1565         INIT_LIST_HEAD(&phba->work_list);
1566         phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
1567         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
1568
1569         /* Startup the kernel thread for this host adapter. */
1570         phba->worker_thread = kthread_run(lpfc_do_work, phba,
1571                                        "lpfc_worker_%d", phba->brd_no);
1572         if (IS_ERR(phba->worker_thread)) {
1573                 error = PTR_ERR(phba->worker_thread);
1574                 goto out_free_iocbq;
1575         }
1576
1577         /*
1578          * Set initial can_queue value since 0 is no longer supported and
1579          * scsi_add_host will fail. This will be adjusted later based on the
1580          * max xri value determined in hba setup.
1581          */
1582         host->can_queue = phba->cfg_hba_queue_depth - 10;
1583
1584         /* Tell the midlayer we support 16 byte commands */
1585         host->max_cmd_len = 16;
1586
1587         /* Initialize the list of scsi buffers used by driver for scsi IO. */
1588         spin_lock_init(&phba->scsi_buf_list_lock);
1589         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
1590
1591         host->transportt = lpfc_transport_template;
1592         pci_set_drvdata(pdev, host);
1593         error = scsi_add_host(host, &pdev->dev);
1594         if (error)
1595                 goto out_kthread_stop;
1596
1597         error = lpfc_alloc_sysfs_attr(phba);
1598         if (error)
1599                 goto out_remove_host;
1600
1601         if (phba->cfg_use_msi) {
1602                 error = pci_enable_msi(phba->pcidev);
1603                 if (error)
1604                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
1605                                         "Enable MSI failed, continuing with "
1606                                         "IRQ\n", phba->brd_no);
1607         }
1608
1609         error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
1610                                                         LPFC_DRIVER_NAME, phba);
1611         if (error) {
1612                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1613                         "%d:0451 Enable interrupt handler failed\n",
1614                         phba->brd_no);
1615                 goto out_free_sysfs_attr;
1616         }
1617         phba->MBslimaddr = phba->slim_memmap_p;
1618         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
1619         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
1620         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
1621         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
1622
1623         error = lpfc_sli_hba_setup(phba);
1624         if (error) {
1625                 error = -ENODEV;
1626                 goto out_free_irq;
1627         }
1628
1629         /*
1630          * hba setup may have changed the hba_queue_depth so we need to adjust
1631          * the value of can_queue.
1632          */
1633         host->can_queue = phba->cfg_hba_queue_depth - 10;
1634
1635         lpfc_discovery_wait(phba);
1636
1637         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1638                 spin_lock_irq(phba->host->host_lock);
1639                 lpfc_poll_start_timer(phba);
1640                 spin_unlock_irq(phba->host->host_lock);
1641         }
1642
1643         /*
1644          * set fixed host attributes
1645          * Must done after lpfc_sli_hba_setup()
1646          */
1647
1648         fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
1649         fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
1650         fc_host_supported_classes(host) = FC_COS_CLASS3;
1651
1652         memset(fc_host_supported_fc4s(host), 0,
1653                 sizeof(fc_host_supported_fc4s(host)));
1654         fc_host_supported_fc4s(host)[2] = 1;
1655         fc_host_supported_fc4s(host)[7] = 1;
1656
1657         lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
1658
1659         fc_host_supported_speeds(host) = 0;
1660         if (phba->lmt & LMT_10Gb)
1661                 fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
1662         if (phba->lmt & LMT_4Gb)
1663                 fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
1664         if (phba->lmt & LMT_2Gb)
1665                 fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
1666         if (phba->lmt & LMT_1Gb)
1667                 fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT;
1668
1669         fc_host_maxframe_size(host) =
1670                 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
1671                  (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
1672
1673         /* This value is also unchanging */
1674         memset(fc_host_active_fc4s(host), 0,
1675                 sizeof(fc_host_active_fc4s(host)));
1676         fc_host_active_fc4s(host)[2] = 1;
1677         fc_host_active_fc4s(host)[7] = 1;
1678
1679         spin_lock_irq(phba->host->host_lock);
1680         phba->fc_flag &= ~FC_LOADING;
1681         spin_unlock_irq(phba->host->host_lock);
1682         return 0;
1683
1684 out_free_irq:
1685         lpfc_stop_timer(phba);
1686         phba->work_hba_events = 0;
1687         free_irq(phba->pcidev->irq, phba);
1688         pci_disable_msi(phba->pcidev);
1689 out_free_sysfs_attr:
1690         lpfc_free_sysfs_attr(phba);
1691 out_remove_host:
1692         fc_remove_host(phba->host);
1693         scsi_remove_host(phba->host);
1694 out_kthread_stop:
1695         kthread_stop(phba->worker_thread);
1696 out_free_iocbq:
1697         list_for_each_entry_safe(iocbq_entry, iocbq_next,
1698                                                 &phba->lpfc_iocb_list, list) {
1699                 spin_lock_irq(phba->host->host_lock);
1700                 kfree(iocbq_entry);
1701                 phba->total_iocbq_bufs--;
1702                 spin_unlock_irq(phba->host->host_lock);
1703         }
1704         lpfc_mem_free(phba);
1705 out_free_slim:
1706         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
1707                                                         phba->slim2p_mapping);
1708 out_iounmap:
1709         iounmap(phba->ctrl_regs_memmap_p);
1710 out_iounmap_slim:
1711         iounmap(phba->slim_memmap_p);
1712 out_idr_remove:
1713         idr_remove(&lpfc_hba_index, phba->brd_no);
1714 out_put_host:
1715         phba->host = NULL;
1716         scsi_host_put(host);
1717 out_release_regions:
1718         pci_release_regions(pdev);
1719 out_disable_device:
1720         pci_disable_device(pdev);
1721 out:
1722         pci_set_drvdata(pdev, NULL);
1723         return error;
1724 }
1725
1726 static void __devexit
1727 lpfc_pci_remove_one(struct pci_dev *pdev)
1728 {
1729         struct Scsi_Host   *host = pci_get_drvdata(pdev);
1730         struct lpfc_hba    *phba = (struct lpfc_hba *)host->hostdata;
1731         unsigned long iflag;
1732
1733         lpfc_free_sysfs_attr(phba);
1734
1735         spin_lock_irqsave(phba->host->host_lock, iflag);
1736         phba->fc_flag |= FC_UNLOADING;
1737
1738         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1739
1740         fc_remove_host(phba->host);
1741         scsi_remove_host(phba->host);
1742
1743         kthread_stop(phba->worker_thread);
1744
1745         /*
1746          * Bring down the SLI Layer. This step disable all interrupts,
1747          * clears the rings, discards all mailbox commands, and resets
1748          * the HBA.
1749          */
1750         lpfc_sli_hba_down(phba);
1751         lpfc_sli_brdrestart(phba);
1752
1753         /* Release the irq reservation */
1754         free_irq(phba->pcidev->irq, phba);
1755         pci_disable_msi(phba->pcidev);
1756
1757         lpfc_cleanup(phba);
1758         lpfc_stop_timer(phba);
1759         phba->work_hba_events = 0;
1760
1761         /*
1762          * Call scsi_free before mem_free since scsi bufs are released to their
1763          * corresponding pools here.
1764          */
1765         lpfc_scsi_free(phba);
1766         lpfc_mem_free(phba);
1767
1768         /* Free resources associated with SLI2 interface */
1769         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
1770                           phba->slim2p, phba->slim2p_mapping);
1771
1772         /* unmap adapter SLIM and Control Registers */
1773         iounmap(phba->ctrl_regs_memmap_p);
1774         iounmap(phba->slim_memmap_p);
1775
1776         pci_release_regions(phba->pcidev);
1777         pci_disable_device(phba->pcidev);
1778
1779         idr_remove(&lpfc_hba_index, phba->brd_no);
1780         scsi_host_put(phba->host);
1781
1782         pci_set_drvdata(pdev, NULL);
1783 }
1784
1785 /**
1786  * lpfc_io_error_detected - called when PCI error is detected
1787  * @pdev: Pointer to PCI device
1788  * @state: The current pci conneection state
1789  *
1790  * This function is called after a PCI bus error affecting
1791  * this device has been detected.
1792  */
1793 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
1794                                 pci_channel_state_t state)
1795 {
1796         struct Scsi_Host *host = pci_get_drvdata(pdev);
1797         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1798         struct lpfc_sli *psli = &phba->sli;
1799         struct lpfc_sli_ring  *pring;
1800
1801         if (state == pci_channel_io_perm_failure)
1802                 return PCI_ERS_RESULT_DISCONNECT;
1803
1804         pci_disable_device(pdev);
1805         /*
1806          * There may be I/Os dropped by the firmware.
1807          * Error iocb (I/O) on txcmplq and let the SCSI layer
1808          * retry it after re-establishing link.
1809          */
1810         pring = &psli->ring[psli->fcp_ring];
1811         lpfc_sli_abort_iocb_ring(phba, pring);
1812
1813         /* Request a slot reset. */
1814         return PCI_ERS_RESULT_NEED_RESET;
1815 }
1816
1817 /**
1818  * lpfc_io_slot_reset - called after the pci bus has been reset.
1819  * @pdev: Pointer to PCI device
1820  *
1821  * Restart the card from scratch, as if from a cold-boot.
1822  */
1823 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
1824 {
1825         struct Scsi_Host *host = pci_get_drvdata(pdev);
1826         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1827         struct lpfc_sli *psli = &phba->sli;
1828         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
1829
1830         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
1831         if (pci_enable_device_bars(pdev, bars)) {
1832                 printk(KERN_ERR "lpfc: Cannot re-enable "
1833                         "PCI device after reset.\n");
1834                 return PCI_ERS_RESULT_DISCONNECT;
1835         }
1836
1837         pci_set_master(pdev);
1838
1839         /* Re-establishing Link */
1840         spin_lock_irq(phba->host->host_lock);
1841         phba->fc_flag |= FC_ESTABLISH_LINK;
1842         psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
1843         spin_unlock_irq(phba->host->host_lock);
1844
1845
1846         /* Take device offline; this will perform cleanup */
1847         lpfc_offline(phba);
1848         lpfc_sli_brdrestart(phba);
1849
1850         return PCI_ERS_RESULT_RECOVERED;
1851 }
1852
1853 /**
1854  * lpfc_io_resume - called when traffic can start flowing again.
1855  * @pdev: Pointer to PCI device
1856  *
1857  * This callback is called when the error recovery driver tells us that
1858  * its OK to resume normal operation.
1859  */
1860 static void lpfc_io_resume(struct pci_dev *pdev)
1861 {
1862         struct Scsi_Host *host = pci_get_drvdata(pdev);
1863         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1864
1865         if (lpfc_online(phba) == 0) {
1866                 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
1867         }
1868 }
1869
1870 static struct pci_device_id lpfc_id_table[] = {
1871         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
1872                 PCI_ANY_ID, PCI_ANY_ID, },
1873         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
1874                 PCI_ANY_ID, PCI_ANY_ID, },
1875         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
1876                 PCI_ANY_ID, PCI_ANY_ID, },
1877         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
1878                 PCI_ANY_ID, PCI_ANY_ID, },
1879         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
1880                 PCI_ANY_ID, PCI_ANY_ID, },
1881         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
1882                 PCI_ANY_ID, PCI_ANY_ID, },
1883         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
1884                 PCI_ANY_ID, PCI_ANY_ID, },
1885         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
1886                 PCI_ANY_ID, PCI_ANY_ID, },
1887         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
1888                 PCI_ANY_ID, PCI_ANY_ID, },
1889         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
1890                 PCI_ANY_ID, PCI_ANY_ID, },
1891         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
1892                 PCI_ANY_ID, PCI_ANY_ID, },
1893         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
1894                 PCI_ANY_ID, PCI_ANY_ID, },
1895         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
1896                 PCI_ANY_ID, PCI_ANY_ID, },
1897         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
1898                 PCI_ANY_ID, PCI_ANY_ID, },
1899         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
1900                 PCI_ANY_ID, PCI_ANY_ID, },
1901         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
1902                 PCI_ANY_ID, PCI_ANY_ID, },
1903         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
1904                 PCI_ANY_ID, PCI_ANY_ID, },
1905         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
1906                 PCI_ANY_ID, PCI_ANY_ID, },
1907         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
1908                 PCI_ANY_ID, PCI_ANY_ID, },
1909         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
1910                 PCI_ANY_ID, PCI_ANY_ID, },
1911         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
1912                 PCI_ANY_ID, PCI_ANY_ID, },
1913         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
1914                 PCI_ANY_ID, PCI_ANY_ID, },
1915         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
1916                 PCI_ANY_ID, PCI_ANY_ID, },
1917         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
1918                 PCI_ANY_ID, PCI_ANY_ID, },
1919         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
1920                 PCI_ANY_ID, PCI_ANY_ID, },
1921         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
1922                 PCI_ANY_ID, PCI_ANY_ID, },
1923         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
1924                 PCI_ANY_ID, PCI_ANY_ID, },
1925         { 0 }
1926 };
1927
1928 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
1929
1930 static struct pci_error_handlers lpfc_err_handler = {
1931         .error_detected = lpfc_io_error_detected,
1932         .slot_reset = lpfc_io_slot_reset,
1933         .resume = lpfc_io_resume,
1934 };
1935
1936 static struct pci_driver lpfc_driver = {
1937         .name           = LPFC_DRIVER_NAME,
1938         .id_table       = lpfc_id_table,
1939         .probe          = lpfc_pci_probe_one,
1940         .remove         = __devexit_p(lpfc_pci_remove_one),
1941         .err_handler = &lpfc_err_handler,
1942 };
1943
1944 static int __init
1945 lpfc_init(void)
1946 {
1947         int error = 0;
1948
1949         printk(LPFC_MODULE_DESC "\n");
1950         printk(LPFC_COPYRIGHT "\n");
1951
1952         lpfc_transport_template =
1953                                 fc_attach_transport(&lpfc_transport_functions);
1954         if (!lpfc_transport_template)
1955                 return -ENOMEM;
1956         error = pci_register_driver(&lpfc_driver);
1957         if (error)
1958                 fc_release_transport(lpfc_transport_template);
1959
1960         return error;
1961 }
1962
1963 static void __exit
1964 lpfc_exit(void)
1965 {
1966         pci_unregister_driver(&lpfc_driver);
1967         fc_release_transport(lpfc_transport_template);
1968 }
1969
1970 module_init(lpfc_init);
1971 module_exit(lpfc_exit);
1972 MODULE_LICENSE("GPL");
1973 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
1974 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
1975 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);