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         phba->els_tmofunc.expires = jiffies + HZ * timeout;
 390         add_timer(&phba->els_tmofunc);
 391
 392         lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
 393         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 394         rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 395         if (rc != MBX_SUCCESS) {
 396                 lpfc_printf_log(phba,
 397                                 KERN_ERR,
 398                                 LOG_INIT,
 399                                 "%d:0454 Adapter failed to init, mbxCmd x%x "
 400                                 "INIT_LINK, mbxStatus x%x\n",
 401                                 phba->brd_no,
 402                                 mb->mbxCommand, mb->mbxStatus);
 403
 404                 /* Clear all interrupt enable conditions */
 405                 writel(0, phba->HCregaddr);
 406                 readl(phba->HCregaddr); /* flush */
 407                 /* Clear all pending interrupts */
 408                 writel(0xffffffff, phba->HAregaddr);
 409                 readl(phba->HAregaddr); /* flush */
 410
 411                 phba->hba_state = LPFC_HBA_ERROR;
 412                 if (rc != MBX_BUSY)
 413                         mempool_free(pmb, phba->mbox_mem_pool);
 414                 return -EIO;
 415         }
 416         /* MBOX buffer will be freed in mbox compl */
 417
 418         return (0);
 419 }
 420
 421 static int
 422 lpfc_discovery_wait(struct lpfc_hba *phba)
 423 {
 424         int i = 0;
 425
 426         while ((phba->hba_state != LPFC_HBA_READY) ||
 427                (phba->num_disc_nodes) || (phba->fc_prli_sent) ||
 428                ((phba->fc_map_cnt == 0) && (i<2)) ||
 429                (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE)) {
 430                 /* Check every second for 30 retries. */
 431                 i++;
 432                 if (i > 30) {
 433                         return -ETIMEDOUT;
 434                 }
 435                 if ((i >= 15) && (phba->hba_state <= LPFC_LINK_DOWN)) {
 436                         /* The link is down.  Set linkdown timeout */
 437                         return -ETIMEDOUT;
 438                 }
 439
 440                 /* Delay for 1 second to give discovery time to complete. */
 441                 msleep(1000);
 442
 443         }
 444
 445         return 0;
 446 }
 447
 448 /************************************************************************/
 449 /*                                                                      */
 450 /*    lpfc_hba_down_prep                                                */
 451 /*    This routine will do LPFC uninitialization before the             */
 452 /*    HBA is reset when bringing down the SLI Layer. This will be       */
 453 /*    initialized as a SLI layer callback routine.                      */
 454 /*    This routine returns 0 on success. Any other return value         */
 455 /*    indicates an error.                                               */
 456 /*                                                                      */
 457 /************************************************************************/
 458 int
 459 lpfc_hba_down_prep(struct lpfc_hba * phba)
 460 {
 461         /* Disable interrupts */
 462         writel(0, phba->HCregaddr);
 463         readl(phba->HCregaddr); /* flush */
 464
 465         /* Cleanup potential discovery resources */
 466         lpfc_els_flush_rscn(phba);
 467         lpfc_els_flush_cmd(phba);
 468         lpfc_disc_flush_list(phba);
 469
 470         return (0);
 471 }
 472
 473 /************************************************************************/
 474 /*                                                                      */
 475 /*    lpfc_hba_down_post                                                */
 476 /*    This routine will do uninitialization after the HBA is reset      */
 477 /*    when bringing down the SLI Layer.                                 */
 478 /*    This routine returns 0 on success. Any other return value         */
 479 /*    indicates an error.                                               */
 480 /*                                                                      */
 481 /************************************************************************/
 482 int
 483 lpfc_hba_down_post(struct lpfc_hba * phba)
 484 {
 485         struct lpfc_sli *psli = &phba->sli;
 486         struct lpfc_sli_ring *pring;
 487         struct lpfc_dmabuf *mp, *next_mp;
 488         int i;
 489
 490         /* Cleanup preposted buffers on the ELS ring */
 491         pring = &psli->ring[LPFC_ELS_RING];
 492         list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
 493                 list_del(&mp->list);
 494                 pring->postbufq_cnt--;
 495                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 496                 kfree(mp);
 497         }
 498
 499         for (i = 0; i < psli->num_rings; i++) {
 500                 pring = &psli->ring[i];
 501                 lpfc_sli_abort_iocb_ring(phba, pring);
 502         }
 503
 504         return 0;
 505 }
 506
 507 /************************************************************************/
 508 /*                                                                      */
 509 /*    lpfc_handle_eratt                                                 */
 510 /*    This routine will handle processing a Host Attention              */
 511 /*    Error Status event. This will be initialized                      */
 512 /*    as a SLI layer callback routine.                                  */
 513 /*                                                                      */
 514 /************************************************************************/
 515 void
 516 lpfc_handle_eratt(struct lpfc_hba * phba)
 517 {
 518         struct lpfc_sli *psli = &phba->sli;
 519         struct lpfc_sli_ring  *pring;
 520         uint32_t event_data;
 521         /* If the pci channel is offline, ignore possible errors,
 522          * since we cannot communicate with the pci card anyway. */
 523         if (pci_channel_offline(phba->pcidev))
 524                 return;
 525
 526         if (phba->work_hs & HS_FFER6 ||
 527             phba->work_hs & HS_FFER5) {
 528                 /* Re-establishing Link */
 529                 lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
 530                                 "%d:1301 Re-establishing Link "
 531                                 "Data: x%x x%x x%x\n",
 532                                 phba->brd_no, phba->work_hs,
 533                                 phba->work_status[0], phba->work_status[1]);
 534                 spin_lock_irq(phba->host->host_lock);
 535                 phba->fc_flag |= FC_ESTABLISH_LINK;
 536                 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 537                 spin_unlock_irq(phba->host->host_lock);
 538
 539                 /*
 540                 * Firmware stops when it triggled erratt with HS_FFER6.
 541                 * That could cause the I/Os dropped by the firmware.
 542                 * Error iocb (I/O) on txcmplq and let the SCSI layer
 543                 * retry it after re-establishing link.
 544                 */
 545                 pring = &psli->ring[psli->fcp_ring];
 546                 lpfc_sli_abort_iocb_ring(phba, pring);
 547
 548
 549                 /*
 550                  * There was a firmware error.  Take the hba offline and then
 551                  * attempt to restart it.
 552                  */
 553                 lpfc_offline(phba);
 554                 lpfc_sli_brdrestart(phba);
 555                 if (lpfc_online(phba) == 0) {   /* Initialize the HBA */
 556                         mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
 557                         return;
 558                 }
 559         } else {
 560                 /* The if clause above forces this code path when the status
 561                  * failure is a value other than FFER6.  Do not call the offline
 562                  *  twice. This is the adapter hardware error path.
 563                  */
 564                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 565                                 "%d:0457 Adapter Hardware Error "
 566                                 "Data: x%x x%x x%x\n",
 567                                 phba->brd_no, phba->work_hs,
 568                                 phba->work_status[0], phba->work_status[1]);
 569
 570                 event_data = FC_REG_DUMP_EVENT;
 571                 fc_host_post_vendor_event(phba->host, fc_get_event_number(),
 572                                 sizeof(event_data), (char *) &event_data,
 573                                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
 574
 575                 psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 576                 lpfc_offline(phba);
 577                 phba->hba_state = LPFC_HBA_ERROR;
 578                 lpfc_hba_down_post(phba);
 579         }
 580 }
 581
 582 /************************************************************************/
 583 /*                                                                      */
 584 /*    lpfc_handle_latt                                                  */
 585 /*    This routine will handle processing a Host Attention              */
 586 /*    Link Status event. This will be initialized                       */
 587 /*    as a SLI layer callback routine.                                  */
 588 /*                                                                      */
 589 /************************************************************************/
 590 void
 591 lpfc_handle_latt(struct lpfc_hba * phba)
 592 {
 593         struct lpfc_sli *psli = &phba->sli;
 594         LPFC_MBOXQ_t *pmb;
 595         volatile uint32_t control;
 596         struct lpfc_dmabuf *mp;
 597         int rc = -ENOMEM;
 598
 599         pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 600         if (!pmb)
 601                 goto lpfc_handle_latt_err_exit;
 602
 603         mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 604         if (!mp)
 605                 goto lpfc_handle_latt_free_pmb;
 606
 607         mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
 608         if (!mp->virt)
 609                 goto lpfc_handle_latt_free_mp;
 610
 611         rc = -EIO;
 612
 613         /* Cleanup any outstanding ELS commands */
 614         lpfc_els_flush_cmd(phba);
 615
 616         psli->slistat.link_event++;
 617         lpfc_read_la(phba, pmb, mp);
 618         pmb->mbox_cmpl = lpfc_mbx_cmpl_read_la;
 619         rc = lpfc_sli_issue_mbox (phba, pmb, (MBX_NOWAIT | MBX_STOP_IOCB));
 620         if (rc == MBX_NOT_FINISHED)
 621                 goto lpfc_handle_latt_free_mbuf;
 622
 623         /* Clear Link Attention in HA REG */
 624         spin_lock_irq(phba->host->host_lock);
 625         writel(HA_LATT, phba->HAregaddr);
 626         readl(phba->HAregaddr); /* flush */
 627         spin_unlock_irq(phba->host->host_lock);
 628
 629         return;
 630
 631 lpfc_handle_latt_free_mbuf:
 632         lpfc_mbuf_free(phba, mp->virt, mp->phys);
 633 lpfc_handle_latt_free_mp:
 634         kfree(mp);
 635 lpfc_handle_latt_free_pmb:
 636         kfree(pmb);
 637 lpfc_handle_latt_err_exit:
 638         /* Enable Link attention interrupts */
 639         spin_lock_irq(phba->host->host_lock);
 640         psli->sli_flag |= LPFC_PROCESS_LA;
 641         control = readl(phba->HCregaddr);
 642         control |= HC_LAINT_ENA;
 643         writel(control, phba->HCregaddr);
 644         readl(phba->HCregaddr); /* flush */
 645
 646         /* Clear Link Attention in HA REG */
 647         writel(HA_LATT, phba->HAregaddr);
 648         readl(phba->HAregaddr); /* flush */
 649         spin_unlock_irq(phba->host->host_lock);
 650         lpfc_linkdown(phba);
 651         phba->hba_state = LPFC_HBA_ERROR;
 652
 653         /* The other case is an error from issue_mbox */
 654         if (rc == -ENOMEM)
 655                 lpfc_printf_log(phba,
 656                                 KERN_WARNING,
 657                                 LOG_MBOX,
 658                                 "%d:0300 READ_LA: no buffers\n",
 659                                 phba->brd_no);
 660
 661         return;
 662 }
 663
 664 /************************************************************************/
 665 /*                                                                      */
 666 /*   lpfc_parse_vpd                                                     */
 667 /*   This routine will parse the VPD data                               */
 668 /*                                                                      */
 669 /************************************************************************/
 670 static int
 671 lpfc_parse_vpd(struct lpfc_hba * phba, uint8_t * vpd, int len)
 672 {
 673         uint8_t lenlo, lenhi;
 674         int Length;
 675         int i, j;
 676         int finished = 0;
 677         int index = 0;
 678
 679         if (!vpd)
 680                 return 0;
 681
 682         /* Vital Product */
 683         lpfc_printf_log(phba,
 684                         KERN_INFO,
 685                         LOG_INIT,
 686                         "%d:0455 Vital Product Data: x%x x%x x%x x%x\n",
 687                         phba->brd_no,
 688                         (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2],
 689                         (uint32_t) vpd[3]);
 690         while (!finished && (index < (len - 4))) {
 691                 switch (vpd[index]) {
 692                 case 0x82:
 693                 case 0x91:
 694                         index += 1;
 695                         lenlo = vpd[index];
 696                         index += 1;
 697                         lenhi = vpd[index];
 698                         index += 1;
 699                         i = ((((unsigned short)lenhi) << 8) + lenlo);
 700                         index += i;
 701                         break;
 702                 case 0x90:
 703                         index += 1;
 704                         lenlo = vpd[index];
 705                         index += 1;
 706                         lenhi = vpd[index];
 707                         index += 1;
 708                         Length = ((((unsigned short)lenhi) << 8) + lenlo);
 709                         if (Length > len - index)
 710                                 Length = len - index;
 711                         while (Length > 0) {
 712                         /* Look for Serial Number */
 713                         if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) {
 714                                 index += 2;
 715                                 i = vpd[index];
 716                                 index += 1;
 717                                 j = 0;
 718                                 Length -= (3+i);
 719                                 while(i--) {
 720                                         phba->SerialNumber[j++] = vpd[index++];
 721                                         if (j == 31)
 722                                                 break;
 723                                 }
 724                                 phba->SerialNumber[j] = 0;
 725                                 continue;
 726                         }
 727                         else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) {
 728                                 phba->vpd_flag |= VPD_MODEL_DESC;
 729                                 index += 2;
 730                                 i = vpd[index];
 731                                 index += 1;
 732                                 j = 0;
 733                                 Length -= (3+i);
 734                                 while(i--) {
 735                                         phba->ModelDesc[j++] = vpd[index++];
 736                                         if (j == 255)
 737                                                 break;
 738                                 }
 739                                 phba->ModelDesc[j] = 0;
 740                                 continue;
 741                         }
 742                         else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) {
 743                                 phba->vpd_flag |= VPD_MODEL_NAME;
 744                                 index += 2;
 745                                 i = vpd[index];
 746                                 index += 1;
 747                                 j = 0;
 748                                 Length -= (3+i);
 749                                 while(i--) {
 750                                         phba->ModelName[j++] = vpd[index++];
 751                                         if (j == 79)
 752                                                 break;
 753                                 }
 754                                 phba->ModelName[j] = 0;
 755                                 continue;
 756                         }
 757                         else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) {
 758                                 phba->vpd_flag |= VPD_PROGRAM_TYPE;
 759                                 index += 2;
 760                                 i = vpd[index];
 761                                 index += 1;
 762                                 j = 0;
 763                                 Length -= (3+i);
 764                                 while(i--) {
 765                                         phba->ProgramType[j++] = vpd[index++];
 766                                         if (j == 255)
 767                                                 break;
 768                                 }
 769                                 phba->ProgramType[j] = 0;
 770                                 continue;
 771                         }
 772                         else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) {
 773                                 phba->vpd_flag |= VPD_PORT;
 774                                 index += 2;
 775                                 i = vpd[index];
 776                                 index += 1;
 777                                 j = 0;
 778                                 Length -= (3+i);
 779                                 while(i--) {
 780                                 phba->Port[j++] = vpd[index++];
 781                                 if (j == 19)
 782                                         break;
 783                                 }
 784                                 phba->Port[j] = 0;
 785                                 continue;
 786                         }
 787                         else {
 788                                 index += 2;
 789                                 i = vpd[index];
 790                                 index += 1;
 791                                 index += i;
 792                                 Length -= (3 + i);
 793                         }
 794                 }
 795                 finished = 0;
 796                 break;
 797                 case 0x78:
 798                         finished = 1;
 799                         break;
 800                 default:
 801                         index ++;
 802                         break;
 803                 }
 804         }
 805
 806         return(1);
 807 }
 808
 809 static void
 810 lpfc_get_hba_model_desc(struct lpfc_hba * phba, uint8_t * mdp, uint8_t * descp)
 811 {
 812         lpfc_vpd_t *vp;
 813         uint16_t dev_id = phba->pcidev->device;
 814         int max_speed;
 815         struct {
 816                 char * name;
 817                 int    max_speed;
 818                 char * bus;
 819         } m = {"<Unknown>", 0, ""};
 820
 821         if (mdp && mdp[0] != '\0'
 822                 && descp && descp[0] != '\0')
 823                 return;
 824
 825         if (phba->lmt & LMT_10Gb)
 826                 max_speed = 10;
 827         else if (phba->lmt & LMT_8Gb)
 828                 max_speed = 8;
 829         else if (phba->lmt & LMT_4Gb)
 830                 max_speed = 4;
 831         else if (phba->lmt & LMT_2Gb)
 832                 max_speed = 2;
 833         else
 834                 max_speed = 1;
 835
 836         vp = &phba->vpd;
 837
 838         switch (dev_id) {
 839         case PCI_DEVICE_ID_FIREFLY:
 840                 m = (typeof(m)){"LP6000", max_speed, "PCI"};
 841                 break;
 842         case PCI_DEVICE_ID_SUPERFLY:
 843                 if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3)
 844                         m = (typeof(m)){"LP7000", max_speed,  "PCI"};
 845                 else
 846                         m = (typeof(m)){"LP7000E", max_speed, "PCI"};
 847                 break;
 848         case PCI_DEVICE_ID_DRAGONFLY:
 849                 m = (typeof(m)){"LP8000", max_speed, "PCI"};
 850                 break;
 851         case PCI_DEVICE_ID_CENTAUR:
 852                 if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID)
 853                         m = (typeof(m)){"LP9002", max_speed, "PCI"};
 854                 else
 855                         m = (typeof(m)){"LP9000", max_speed, "PCI"};
 856                 break;
 857         case PCI_DEVICE_ID_RFLY:
 858                 m = (typeof(m)){"LP952", max_speed, "PCI"};
 859                 break;
 860         case PCI_DEVICE_ID_PEGASUS:
 861                 m = (typeof(m)){"LP9802", max_speed, "PCI-X"};
 862                 break;
 863         case PCI_DEVICE_ID_THOR:
 864                 m = (typeof(m)){"LP10000", max_speed, "PCI-X"};
 865                 break;
 866         case PCI_DEVICE_ID_VIPER:
 867                 m = (typeof(m)){"LPX1000", max_speed,  "PCI-X"};
 868                 break;
 869         case PCI_DEVICE_ID_PFLY:
 870                 m = (typeof(m)){"LP982", max_speed, "PCI-X"};
 871                 break;
 872         case PCI_DEVICE_ID_TFLY:
 873                 m = (typeof(m)){"LP1050", max_speed, "PCI-X"};
 874                 break;
 875         case PCI_DEVICE_ID_HELIOS:
 876                 m = (typeof(m)){"LP11000", max_speed, "PCI-X2"};
 877                 break;
 878         case PCI_DEVICE_ID_HELIOS_SCSP:
 879                 m = (typeof(m)){"LP11000-SP", max_speed, "PCI-X2"};
 880                 break;
 881         case PCI_DEVICE_ID_HELIOS_DCSP:
 882                 m = (typeof(m)){"LP11002-SP", max_speed, "PCI-X2"};
 883                 break;
 884         case PCI_DEVICE_ID_NEPTUNE:
 885                 m = (typeof(m)){"LPe1000", max_speed, "PCIe"};
 886                 break;
 887         case PCI_DEVICE_ID_NEPTUNE_SCSP:
 888                 m = (typeof(m)){"LPe1000-SP", max_speed, "PCIe"};
 889                 break;
 890         case PCI_DEVICE_ID_NEPTUNE_DCSP:
 891                 m = (typeof(m)){"LPe1002-SP", max_speed, "PCIe"};
 892                 break;
 893         case PCI_DEVICE_ID_BMID:
 894                 m = (typeof(m)){"LP1150", max_speed, "PCI-X2"};
 895                 break;
 896         case PCI_DEVICE_ID_BSMB:
 897                 m = (typeof(m)){"LP111", max_speed, "PCI-X2"};
 898                 break;
 899         case PCI_DEVICE_ID_ZEPHYR:
 900                 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 901                 break;
 902         case PCI_DEVICE_ID_ZEPHYR_SCSP:
 903                 m = (typeof(m)){"LPe11000", max_speed, "PCIe"};
 904                 break;
 905         case PCI_DEVICE_ID_ZEPHYR_DCSP:
 906                 m = (typeof(m)){"LPe11002-SP", max_speed, "PCIe"};
 907                 break;
 908         case PCI_DEVICE_ID_ZMID:
 909                 m = (typeof(m)){"LPe1150", max_speed, "PCIe"};
 910                 break;
 911         case PCI_DEVICE_ID_ZSMB:
 912                 m = (typeof(m)){"LPe111", max_speed, "PCIe"};
 913                 break;
 914         case PCI_DEVICE_ID_LP101:
 915                 m = (typeof(m)){"LP101", max_speed, "PCI-X"};
 916                 break;
 917         case PCI_DEVICE_ID_LP10000S:
 918                 m = (typeof(m)){"LP10000-S", max_speed, "PCI"};
 919                 break;
 920         case PCI_DEVICE_ID_LP11000S:
 921                 m = (typeof(m)){"LP11000-S", max_speed,
 922                         "PCI-X2"};
 923                 break;
 924         case PCI_DEVICE_ID_LPE11000S:
 925                 m = (typeof(m)){"LPe11000-S", max_speed,
 926                         "PCIe"};
 927                 break;
 928         default:
 929                 m = (typeof(m)){ NULL };
 930                 break;
 931         }
 932
 933         if (mdp && mdp[0] == '\0')
 934                 snprintf(mdp, 79,"%s", m.name);
 935         if (descp && descp[0] == '\0')
 936                 snprintf(descp, 255,
 937                          "Emulex %s %dGb %s Fibre Channel Adapter",
 938                          m.name, m.max_speed, m.bus);
 939 }
 940
 941 /**************************************************/
 942 /*   lpfc_post_buffer                             */
 943 /*                                                */
 944 /*   This routine will post count buffers to the  */
 945 /*   ring with the QUE_RING_BUF_CN command. This  */
 946 /*   allows 3 buffers / command to be posted.     */
 947 /*   Returns the number of buffers NOT posted.    */
 948 /**************************************************/
 949 int
 950 lpfc_post_buffer(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, int cnt,
 951                  int type)
 952 {
 953         IOCB_t *icmd;
 954         struct lpfc_iocbq *iocb;
 955         struct lpfc_dmabuf *mp1, *mp2;
 956
 957         cnt += pring->missbufcnt;
 958
 959         /* While there are buffers to post */
 960         while (cnt > 0) {
 961                 /* Allocate buffer for  command iocb */
 962                 spin_lock_irq(phba->host->host_lock);
 963                 iocb = lpfc_sli_get_iocbq(phba);
 964                 spin_unlock_irq(phba->host->host_lock);
 965                 if (iocb == NULL) {
 966                         pring->missbufcnt = cnt;
 967                         return cnt;
 968                 }
 969                 icmd = &iocb->iocb;
 970
 971                 /* 2 buffers can be posted per command */
 972                 /* Allocate buffer to post */
 973                 mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 974                 if (mp1)
 975                     mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 976                                                 &mp1->phys);
 977                 if (mp1 == 0 || mp1->virt == 0) {
 978                         kfree(mp1);
 979                         spin_lock_irq(phba->host->host_lock);
 980                         lpfc_sli_release_iocbq(phba, iocb);
 981                         spin_unlock_irq(phba->host->host_lock);
 982                         pring->missbufcnt = cnt;
 983                         return cnt;
 984                 }
 985
 986                 INIT_LIST_HEAD(&mp1->list);
 987                 /* Allocate buffer to post */
 988                 if (cnt > 1) {
 989                         mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL);
 990                         if (mp2)
 991                                 mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI,
 992                                                             &mp2->phys);
 993                         if (mp2 == 0 || mp2->virt == 0) {
 994                                 kfree(mp2);
 995                                 lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
 996                                 kfree(mp1);
 997                                 spin_lock_irq(phba->host->host_lock);
 998                                 lpfc_sli_release_iocbq(phba, iocb);
 999                                 spin_unlock_irq(phba->host->host_lock);
1000                                 pring->missbufcnt = cnt;
1001                                 return cnt;
1002                         }
1003
1004                         INIT_LIST_HEAD(&mp2->list);
1005                 } else {
1006                         mp2 = NULL;
1007                 }
1008
1009                 icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys);
1010                 icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys);
1011                 icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE;
1012                 icmd->ulpBdeCount = 1;
1013                 cnt--;
1014                 if (mp2) {
1015                         icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys);
1016                         icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys);
1017                         icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE;
1018                         cnt--;
1019                         icmd->ulpBdeCount = 2;
1020                 }
1021
1022                 icmd->ulpCommand = CMD_QUE_RING_BUF64_CN;
1023                 icmd->ulpLe = 1;
1024
1025                 spin_lock_irq(phba->host->host_lock);
1026                 if (lpfc_sli_issue_iocb(phba, pring, iocb, 0) == IOCB_ERROR) {
1027                         lpfc_mbuf_free(phba, mp1->virt, mp1->phys);
1028                         kfree(mp1);
1029                         cnt++;
1030                         if (mp2) {
1031                                 lpfc_mbuf_free(phba, mp2->virt, mp2->phys);
1032                                 kfree(mp2);
1033                                 cnt++;
1034                         }
1035                         lpfc_sli_release_iocbq(phba, iocb);
1036                         pring->missbufcnt = cnt;
1037                         spin_unlock_irq(phba->host->host_lock);
1038                         return cnt;
1039                 }
1040                 spin_unlock_irq(phba->host->host_lock);
1041                 lpfc_sli_ringpostbuf_put(phba, pring, mp1);
1042                 if (mp2) {
1043                         lpfc_sli_ringpostbuf_put(phba, pring, mp2);
1044                 }
1045         }
1046         pring->missbufcnt = 0;
1047         return 0;
1048 }
1049
1050 /************************************************************************/
1051 /*                                                                      */
1052 /*   lpfc_post_rcv_buf                                                  */
1053 /*   This routine post initial rcv buffers to the configured rings      */
1054 /*                                                                      */
1055 /************************************************************************/
1056 static int
1057 lpfc_post_rcv_buf(struct lpfc_hba * phba)
1058 {
1059         struct lpfc_sli *psli = &phba->sli;
1060
1061         /* Ring 0, ELS / CT buffers */
1062         lpfc_post_buffer(phba, &psli->ring[LPFC_ELS_RING], LPFC_BUF_RING0, 1);
1063         /* Ring 2 - FCP no buffers needed */
1064
1065         return 0;
1066 }
1067
1068 #define S(N,V) (((V)<<(N))|((V)>>(32-(N))))
1069
1070 /************************************************************************/
1071 /*                                                                      */
1072 /*   lpfc_sha_init                                                      */
1073 /*                                                                      */
1074 /************************************************************************/
1075 static void
1076 lpfc_sha_init(uint32_t * HashResultPointer)
1077 {
1078         HashResultPointer[0] = 0x67452301;
1079         HashResultPointer[1] = 0xEFCDAB89;
1080         HashResultPointer[2] = 0x98BADCFE;
1081         HashResultPointer[3] = 0x10325476;
1082         HashResultPointer[4] = 0xC3D2E1F0;
1083 }
1084
1085 /************************************************************************/
1086 /*                                                                      */
1087 /*   lpfc_sha_iterate                                                   */
1088 /*                                                                      */
1089 /************************************************************************/
1090 static void
1091 lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer)
1092 {
1093         int t;
1094         uint32_t TEMP;
1095         uint32_t A, B, C, D, E;
1096         t = 16;
1097         do {
1098                 HashWorkingPointer[t] =
1099                     S(1,
1100                       HashWorkingPointer[t - 3] ^ HashWorkingPointer[t -
1101                                                                      8] ^
1102                       HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]);
1103         } while (++t <= 79);
1104         t = 0;
1105         A = HashResultPointer[0];
1106         B = HashResultPointer[1];
1107         C = HashResultPointer[2];
1108         D = HashResultPointer[3];
1109         E = HashResultPointer[4];
1110
1111         do {
1112                 if (t < 20) {
1113                         TEMP = ((B & C) | ((~B) & D)) + 0x5A827999;
1114                 } else if (t < 40) {
1115                         TEMP = (B ^ C ^ D) + 0x6ED9EBA1;
1116                 } else if (t < 60) {
1117                         TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC;
1118                 } else {
1119                         TEMP = (B ^ C ^ D) + 0xCA62C1D6;
1120                 }
1121                 TEMP += S(5, A) + E + HashWorkingPointer[t];
1122                 E = D;
1123                 D = C;
1124                 C = S(30, B);
1125                 B = A;
1126                 A = TEMP;
1127         } while (++t <= 79);
1128
1129         HashResultPointer[0] += A;
1130         HashResultPointer[1] += B;
1131         HashResultPointer[2] += C;
1132         HashResultPointer[3] += D;
1133         HashResultPointer[4] += E;
1134
1135 }
1136
1137 /************************************************************************/
1138 /*                                                                      */
1139 /*   lpfc_challenge_key                                                 */
1140 /*                                                                      */
1141 /************************************************************************/
1142 static void
1143 lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking)
1144 {
1145         *HashWorking = (*RandomChallenge ^ *HashWorking);
1146 }
1147
1148 /************************************************************************/
1149 /*                                                                      */
1150 /*   lpfc_hba_init                                                      */
1151 /*                                                                      */
1152 /************************************************************************/
1153 void
1154 lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit)
1155 {
1156         int t;
1157         uint32_t *HashWorking;
1158         uint32_t *pwwnn = phba->wwnn;
1159
1160         HashWorking = kmalloc(80 * sizeof(uint32_t), GFP_KERNEL);
1161         if (!HashWorking)
1162                 return;
1163
1164         memset(HashWorking, 0, (80 * sizeof(uint32_t)));
1165         HashWorking[0] = HashWorking[78] = *pwwnn++;
1166         HashWorking[1] = HashWorking[79] = *pwwnn;
1167
1168         for (t = 0; t < 7; t++)
1169                 lpfc_challenge_key(phba->RandomData + t, HashWorking + t);
1170
1171         lpfc_sha_init(hbainit);
1172         lpfc_sha_iterate(hbainit, HashWorking);
1173         kfree(HashWorking);
1174 }
1175
1176 static void
1177 lpfc_cleanup(struct lpfc_hba * phba, uint32_t save_bind)
1178 {
1179         struct lpfc_nodelist *ndlp, *next_ndlp;
1180
1181         /* clean up phba - lpfc specific */
1182         lpfc_can_disctmo(phba);
1183         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpunmap_list,
1184                                 nlp_listp) {
1185                 lpfc_nlp_remove(phba, ndlp);
1186         }
1187
1188         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_nlpmap_list,
1189                                  nlp_listp) {
1190                 lpfc_nlp_remove(phba, ndlp);
1191         }
1192
1193         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_unused_list,
1194                                 nlp_listp) {
1195                 lpfc_nlp_list(phba, ndlp, NLP_NO_LIST);
1196         }
1197
1198         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_plogi_list,
1199                                 nlp_listp) {
1200                 lpfc_nlp_remove(phba, ndlp);
1201         }
1202
1203         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_adisc_list,
1204                                 nlp_listp) {
1205                 lpfc_nlp_remove(phba, ndlp);
1206         }
1207
1208         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_reglogin_list,
1209                                 nlp_listp) {
1210                 lpfc_nlp_remove(phba, ndlp);
1211         }
1212
1213         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_prli_list,
1214                                 nlp_listp) {
1215                 lpfc_nlp_remove(phba, ndlp);
1216         }
1217
1218         list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
1219                                 nlp_listp) {
1220                 lpfc_nlp_remove(phba, ndlp);
1221         }
1222
1223         INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1224         INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1225         INIT_LIST_HEAD(&phba->fc_unused_list);
1226         INIT_LIST_HEAD(&phba->fc_plogi_list);
1227         INIT_LIST_HEAD(&phba->fc_adisc_list);
1228         INIT_LIST_HEAD(&phba->fc_reglogin_list);
1229         INIT_LIST_HEAD(&phba->fc_prli_list);
1230         INIT_LIST_HEAD(&phba->fc_npr_list);
1231
1232         phba->fc_map_cnt   = 0;
1233         phba->fc_unmap_cnt = 0;
1234         phba->fc_plogi_cnt = 0;
1235         phba->fc_adisc_cnt = 0;
1236         phba->fc_reglogin_cnt = 0;
1237         phba->fc_prli_cnt  = 0;
1238         phba->fc_npr_cnt   = 0;
1239         phba->fc_unused_cnt= 0;
1240         return;
1241 }
1242
1243 static void
1244 lpfc_establish_link_tmo(unsigned long ptr)
1245 {
1246         struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
1247         unsigned long iflag;
1248
1249
1250         /* Re-establishing Link, timer expired */
1251         lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
1252                         "%d:1300 Re-establishing Link, timer expired "
1253                         "Data: x%x x%x\n",
1254                         phba->brd_no, phba->fc_flag, phba->hba_state);
1255         spin_lock_irqsave(phba->host->host_lock, iflag);
1256         phba->fc_flag &= ~FC_ESTABLISH_LINK;
1257         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1258 }
1259
1260 static int
1261 lpfc_stop_timer(struct lpfc_hba * phba)
1262 {
1263         struct lpfc_sli *psli = &phba->sli;
1264
1265         /* Instead of a timer, this has been converted to a
1266          * deferred procedding list.
1267          */
1268         while (!list_empty(&phba->freebufList)) {
1269
1270                 struct lpfc_dmabuf *mp = NULL;
1271
1272                 list_remove_head((&phba->freebufList), mp,
1273                                  struct lpfc_dmabuf, list);
1274                 if (mp) {
1275                         lpfc_mbuf_free(phba, mp->virt, mp->phys);
1276                         kfree(mp);
1277                 }
1278         }
1279
1280         del_timer_sync(&phba->fcp_poll_timer);
1281         del_timer_sync(&phba->fc_estabtmo);
1282         del_timer_sync(&phba->fc_disctmo);
1283         del_timer_sync(&phba->fc_fdmitmo);
1284         del_timer_sync(&phba->els_tmofunc);
1285         psli = &phba->sli;
1286         del_timer_sync(&psli->mbox_tmo);
1287         return(1);
1288 }
1289
1290 int
1291 lpfc_online(struct lpfc_hba * phba)
1292 {
1293         if (!phba)
1294                 return 0;
1295
1296         if (!(phba->fc_flag & FC_OFFLINE_MODE))
1297                 return 0;
1298
1299         lpfc_printf_log(phba,
1300                        KERN_WARNING,
1301                        LOG_INIT,
1302                        "%d:0458 Bring Adapter online\n",
1303                        phba->brd_no);
1304
1305         if (!lpfc_sli_queue_setup(phba))
1306                 return 1;
1307
1308         if (lpfc_sli_hba_setup(phba))   /* Initialize the HBA */
1309                 return 1;
1310
1311         spin_lock_irq(phba->host->host_lock);
1312         phba->fc_flag &= ~FC_OFFLINE_MODE;
1313         spin_unlock_irq(phba->host->host_lock);
1314
1315         return 0;
1316 }
1317
1318 int
1319 lpfc_offline(struct lpfc_hba * phba)
1320 {
1321         struct lpfc_sli_ring *pring;
1322         struct lpfc_sli *psli;
1323         unsigned long iflag;
1324         int i;
1325         int cnt = 0;
1326
1327         if (!phba)
1328                 return 0;
1329
1330         if (phba->fc_flag & FC_OFFLINE_MODE)
1331                 return 0;
1332
1333         psli = &phba->sli;
1334
1335         lpfc_linkdown(phba);
1336         lpfc_sli_flush_mbox_queue(phba);
1337
1338         for (i = 0; i < psli->num_rings; i++) {
1339                 pring = &psli->ring[i];
1340                 /* The linkdown event takes 30 seconds to timeout. */
1341                 while (pring->txcmplq_cnt) {
1342                         mdelay(10);
1343                         if (cnt++ > 3000) {
1344                                 lpfc_printf_log(phba,
1345                                         KERN_WARNING, LOG_INIT,
1346                                         "%d:0466 Outstanding IO when "
1347                                         "bringing Adapter offline\n",
1348                                         phba->brd_no);
1349                                 break;
1350                         }
1351                 }
1352         }
1353
1354
1355         /* stop all timers associated with this hba */
1356         lpfc_stop_timer(phba);
1357         phba->work_hba_events = 0;
1358         phba->work_ha = 0;
1359
1360         lpfc_printf_log(phba,
1361                        KERN_WARNING,
1362                        LOG_INIT,
1363                        "%d:0460 Bring Adapter offline\n",
1364                        phba->brd_no);
1365
1366         /* Bring down the SLI Layer and cleanup.  The HBA is offline
1367            now.  */
1368         lpfc_sli_hba_down(phba);
1369         lpfc_cleanup(phba, 1);
1370         spin_lock_irqsave(phba->host->host_lock, iflag);
1371         phba->fc_flag |= FC_OFFLINE_MODE;
1372         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1373         return 0;
1374 }
1375
1376 /******************************************************************************
1377 * Function name: lpfc_scsi_free
1378 *
1379 * Description: Called from lpfc_pci_remove_one free internal driver resources
1380 *
1381 ******************************************************************************/
1382 static int
1383 lpfc_scsi_free(struct lpfc_hba * phba)
1384 {
1385         struct lpfc_scsi_buf *sb, *sb_next;
1386         struct lpfc_iocbq *io, *io_next;
1387
1388         spin_lock_irq(phba->host->host_lock);
1389         /* Release all the lpfc_scsi_bufs maintained by this host. */
1390         list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list) {
1391                 list_del(&sb->list);
1392                 pci_pool_free(phba->lpfc_scsi_dma_buf_pool, sb->data,
1393                                                                 sb->dma_handle);
1394                 kfree(sb);
1395                 phba->total_scsi_bufs--;
1396         }
1397
1398         /* Release all the lpfc_iocbq entries maintained by this host. */
1399         list_for_each_entry_safe(io, io_next, &phba->lpfc_iocb_list, list) {
1400                 list_del(&io->list);
1401                 kfree(io);
1402                 phba->total_iocbq_bufs--;
1403         }
1404
1405         spin_unlock_irq(phba->host->host_lock);
1406
1407         return 0;
1408 }
1409
1410
1411 static int __devinit
1412 lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
1413 {
1414         struct Scsi_Host *host;
1415         struct lpfc_hba  *phba;
1416         struct lpfc_sli  *psli;
1417         struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL;
1418         unsigned long bar0map_len, bar2map_len;
1419         int error = -ENODEV, retval;
1420         int i;
1421         uint16_t iotag;
1422
1423         if (pci_enable_device(pdev))
1424                 goto out;
1425         if (pci_request_regions(pdev, LPFC_DRIVER_NAME))
1426                 goto out_disable_device;
1427
1428         host = scsi_host_alloc(&lpfc_template, sizeof (struct lpfc_hba));
1429         if (!host)
1430                 goto out_release_regions;
1431
1432         phba = (struct lpfc_hba*)host->hostdata;
1433         memset(phba, 0, sizeof (struct lpfc_hba));
1434         phba->host = host;
1435
1436         phba->fc_flag |= FC_LOADING;
1437         phba->pcidev = pdev;
1438
1439         /* Assign an unused board number */
1440         if (!idr_pre_get(&lpfc_hba_index, GFP_KERNEL))
1441                 goto out_put_host;
1442
1443         error = idr_get_new(&lpfc_hba_index, NULL, &phba->brd_no);
1444         if (error)
1445                 goto out_put_host;
1446
1447         host->unique_id = phba->brd_no;
1448         INIT_LIST_HEAD(&phba->ctrspbuflist);
1449         INIT_LIST_HEAD(&phba->rnidrspbuflist);
1450         INIT_LIST_HEAD(&phba->freebufList);
1451
1452         /* Initialize timers used by driver */
1453         init_timer(&phba->fc_estabtmo);
1454         phba->fc_estabtmo.function = lpfc_establish_link_tmo;
1455         phba->fc_estabtmo.data = (unsigned long)phba;
1456         init_timer(&phba->fc_disctmo);
1457         phba->fc_disctmo.function = lpfc_disc_timeout;
1458         phba->fc_disctmo.data = (unsigned long)phba;
1459
1460         init_timer(&phba->fc_fdmitmo);
1461         phba->fc_fdmitmo.function = lpfc_fdmi_tmo;
1462         phba->fc_fdmitmo.data = (unsigned long)phba;
1463         init_timer(&phba->els_tmofunc);
1464         phba->els_tmofunc.function = lpfc_els_timeout;
1465         phba->els_tmofunc.data = (unsigned long)phba;
1466         psli = &phba->sli;
1467         init_timer(&psli->mbox_tmo);
1468         psli->mbox_tmo.function = lpfc_mbox_timeout;
1469         psli->mbox_tmo.data = (unsigned long)phba;
1470
1471         init_timer(&phba->fcp_poll_timer);
1472         phba->fcp_poll_timer.function = lpfc_poll_timeout;
1473         phba->fcp_poll_timer.data = (unsigned long)phba;
1474
1475         /*
1476          * Get all the module params for configuring this host and then
1477          * establish the host parameters.
1478          */
1479         lpfc_get_cfgparam(phba);
1480
1481         host->max_id = LPFC_MAX_TARGET;
1482         host->max_lun = phba->cfg_max_luns;
1483         host->this_id = -1;
1484
1485         /* Initialize all internally managed lists. */
1486         INIT_LIST_HEAD(&phba->fc_nlpmap_list);
1487         INIT_LIST_HEAD(&phba->fc_nlpunmap_list);
1488         INIT_LIST_HEAD(&phba->fc_unused_list);
1489         INIT_LIST_HEAD(&phba->fc_plogi_list);
1490         INIT_LIST_HEAD(&phba->fc_adisc_list);
1491         INIT_LIST_HEAD(&phba->fc_reglogin_list);
1492         INIT_LIST_HEAD(&phba->fc_prli_list);
1493         INIT_LIST_HEAD(&phba->fc_npr_list);
1494
1495
1496         pci_set_master(pdev);
1497         retval = pci_set_mwi(pdev);
1498         if (retval)
1499                 dev_printk(KERN_WARNING, &pdev->dev,
1500                            "Warning: pci_set_mwi returned %d\n", retval);
1501
1502         if (pci_set_dma_mask(phba->pcidev, DMA_64BIT_MASK) != 0)
1503                 if (pci_set_dma_mask(phba->pcidev, DMA_32BIT_MASK) != 0)
1504                         goto out_idr_remove;
1505
1506         /*
1507          * Get the bus address of Bar0 and Bar2 and the number of bytes
1508          * required by each mapping.
1509          */
1510         phba->pci_bar0_map = pci_resource_start(phba->pcidev, 0);
1511         bar0map_len        = pci_resource_len(phba->pcidev, 0);
1512
1513         phba->pci_bar2_map = pci_resource_start(phba->pcidev, 2);
1514         bar2map_len        = pci_resource_len(phba->pcidev, 2);
1515
1516         /* Map HBA SLIM to a kernel virtual address. */
1517         phba->slim_memmap_p      = ioremap(phba->pci_bar0_map, bar0map_len);
1518         if (!phba->slim_memmap_p) {
1519                 error = -ENODEV;
1520                 dev_printk(KERN_ERR, &pdev->dev,
1521                            "ioremap failed for SLIM memory.\n");
1522                 goto out_idr_remove;
1523         }
1524
1525         /* Map HBA Control Registers to a kernel virtual address. */
1526         phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len);
1527         if (!phba->ctrl_regs_memmap_p) {
1528                 error = -ENODEV;
1529                 dev_printk(KERN_ERR, &pdev->dev,
1530                            "ioremap failed for HBA control registers.\n");
1531                 goto out_iounmap_slim;
1532         }
1533
1534         /* Allocate memory for SLI-2 structures */
1535         phba->slim2p = dma_alloc_coherent(&phba->pcidev->dev, SLI2_SLIM_SIZE,
1536                                           &phba->slim2p_mapping, GFP_KERNEL);
1537         if (!phba->slim2p)
1538                 goto out_iounmap;
1539
1540         memset(phba->slim2p, 0, SLI2_SLIM_SIZE);
1541
1542         /* Initialize the SLI Layer to run with lpfc HBAs. */
1543         lpfc_sli_setup(phba);
1544         lpfc_sli_queue_setup(phba);
1545
1546         error = lpfc_mem_alloc(phba);
1547         if (error)
1548                 goto out_free_slim;
1549
1550         /* Initialize and populate the iocb list per host.  */
1551         INIT_LIST_HEAD(&phba->lpfc_iocb_list);
1552         for (i = 0; i < LPFC_IOCB_LIST_CNT; i++) {
1553                 iocbq_entry = kmalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL);
1554                 if (iocbq_entry == NULL) {
1555                         printk(KERN_ERR "%s: only allocated %d iocbs of "
1556                                 "expected %d count. Unloading driver.\n",
1557                                 __FUNCTION__, i, LPFC_IOCB_LIST_CNT);
1558                         error = -ENOMEM;
1559                         goto out_free_iocbq;
1560                 }
1561
1562                 memset(iocbq_entry, 0, sizeof(struct lpfc_iocbq));
1563                 iotag = lpfc_sli_next_iotag(phba, iocbq_entry);
1564                 if (iotag == 0) {
1565                         kfree (iocbq_entry);
1566                         printk(KERN_ERR "%s: failed to allocate IOTAG. "
1567                                "Unloading driver.\n",
1568                                 __FUNCTION__);
1569                         error = -ENOMEM;
1570                         goto out_free_iocbq;
1571                 }
1572                 spin_lock_irq(phba->host->host_lock);
1573                 list_add(&iocbq_entry->list, &phba->lpfc_iocb_list);
1574                 phba->total_iocbq_bufs++;
1575                 spin_unlock_irq(phba->host->host_lock);
1576         }
1577
1578         /* Initialize HBA structure */
1579         phba->fc_edtov = FF_DEF_EDTOV;
1580         phba->fc_ratov = FF_DEF_RATOV;
1581         phba->fc_altov = FF_DEF_ALTOV;
1582         phba->fc_arbtov = FF_DEF_ARBTOV;
1583
1584         INIT_LIST_HEAD(&phba->work_list);
1585         phba->work_ha_mask = (HA_ERATT|HA_MBATT|HA_LATT);
1586         phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4));
1587
1588         /* Startup the kernel thread for this host adapter. */
1589         phba->worker_thread = kthread_run(lpfc_do_work, phba,
1590                                        "lpfc_worker_%d", phba->brd_no);
1591         if (IS_ERR(phba->worker_thread)) {
1592                 error = PTR_ERR(phba->worker_thread);
1593                 goto out_free_iocbq;
1594         }
1595
1596         /*
1597          * Set initial can_queue value since 0 is no longer supported and
1598          * scsi_add_host will fail. This will be adjusted later based on the
1599          * max xri value determined in hba setup.
1600          */
1601         host->can_queue = phba->cfg_hba_queue_depth - 10;
1602
1603         /* Tell the midlayer we support 16 byte commands */
1604         host->max_cmd_len = 16;
1605
1606         /* Initialize the list of scsi buffers used by driver for scsi IO. */
1607         spin_lock_init(&phba->scsi_buf_list_lock);
1608         INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list);
1609
1610         host->transportt = lpfc_transport_template;
1611         pci_set_drvdata(pdev, host);
1612         error = scsi_add_host(host, &pdev->dev);
1613         if (error)
1614                 goto out_kthread_stop;
1615
1616         error = lpfc_alloc_sysfs_attr(phba);
1617         if (error)
1618                 goto out_remove_host;
1619
1620         if (phba->cfg_use_msi) {
1621                 error = pci_enable_msi(phba->pcidev);
1622                 if (error)
1623                         lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 "
1624                                         "Enable MSI failed, continuing with "
1625                                         "IRQ\n", phba->brd_no);
1626         }
1627
1628         error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED,
1629                                                         LPFC_DRIVER_NAME, phba);
1630         if (error) {
1631                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
1632                         "%d:0451 Enable interrupt handler failed\n",
1633                         phba->brd_no);
1634                 goto out_free_sysfs_attr;
1635         }
1636         phba->MBslimaddr = phba->slim_memmap_p;
1637         phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET;
1638         phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET;
1639         phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET;
1640         phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET;
1641
1642         error = lpfc_sli_hba_setup(phba);
1643         if (error) {
1644                 error = -ENODEV;
1645                 goto out_free_irq;
1646         }
1647
1648         /*
1649          * hba setup may have changed the hba_queue_depth so we need to adjust
1650          * the value of can_queue.
1651          */
1652         host->can_queue = phba->cfg_hba_queue_depth - 10;
1653
1654         lpfc_discovery_wait(phba);
1655
1656         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
1657                 spin_lock_irq(phba->host->host_lock);
1658                 lpfc_poll_start_timer(phba);
1659                 spin_unlock_irq(phba->host->host_lock);
1660         }
1661
1662         /*
1663          * set fixed host attributes
1664          * Must done after lpfc_sli_hba_setup()
1665          */
1666
1667         fc_host_node_name(host) = wwn_to_u64(phba->fc_nodename.u.wwn);
1668         fc_host_port_name(host) = wwn_to_u64(phba->fc_portname.u.wwn);
1669         fc_host_supported_classes(host) = FC_COS_CLASS3;
1670
1671         memset(fc_host_supported_fc4s(host), 0,
1672                 sizeof(fc_host_supported_fc4s(host)));
1673         fc_host_supported_fc4s(host)[2] = 1;
1674         fc_host_supported_fc4s(host)[7] = 1;
1675
1676         lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(host));
1677
1678         fc_host_supported_speeds(host) = 0;
1679         if (phba->lmt & LMT_10Gb)
1680                 fc_host_supported_speeds(host) |= FC_PORTSPEED_10GBIT;
1681         if (phba->lmt & LMT_4Gb)
1682                 fc_host_supported_speeds(host) |= FC_PORTSPEED_4GBIT;
1683         if (phba->lmt & LMT_2Gb)
1684                 fc_host_supported_speeds(host) |= FC_PORTSPEED_2GBIT;
1685         if (phba->lmt & LMT_1Gb)
1686                 fc_host_supported_speeds(host) |= FC_PORTSPEED_1GBIT;
1687
1688         fc_host_maxframe_size(host) =
1689                 ((((uint32_t) phba->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) |
1690                  (uint32_t) phba->fc_sparam.cmn.bbRcvSizeLsb);
1691
1692         /* This value is also unchanging */
1693         memset(fc_host_active_fc4s(host), 0,
1694                 sizeof(fc_host_active_fc4s(host)));
1695         fc_host_active_fc4s(host)[2] = 1;
1696         fc_host_active_fc4s(host)[7] = 1;
1697
1698         spin_lock_irq(phba->host->host_lock);
1699         phba->fc_flag &= ~FC_LOADING;
1700         spin_unlock_irq(phba->host->host_lock);
1701         return 0;
1702
1703 out_free_irq:
1704         lpfc_stop_timer(phba);
1705         phba->work_hba_events = 0;
1706         free_irq(phba->pcidev->irq, phba);
1707         pci_disable_msi(phba->pcidev);
1708 out_free_sysfs_attr:
1709         lpfc_free_sysfs_attr(phba);
1710 out_remove_host:
1711         fc_remove_host(phba->host);
1712         scsi_remove_host(phba->host);
1713 out_kthread_stop:
1714         kthread_stop(phba->worker_thread);
1715 out_free_iocbq:
1716         list_for_each_entry_safe(iocbq_entry, iocbq_next,
1717                                                 &phba->lpfc_iocb_list, list) {
1718                 spin_lock_irq(phba->host->host_lock);
1719                 kfree(iocbq_entry);
1720                 phba->total_iocbq_bufs--;
1721                 spin_unlock_irq(phba->host->host_lock);
1722         }
1723         lpfc_mem_free(phba);
1724 out_free_slim:
1725         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, phba->slim2p,
1726                                                         phba->slim2p_mapping);
1727 out_iounmap:
1728         iounmap(phba->ctrl_regs_memmap_p);
1729 out_iounmap_slim:
1730         iounmap(phba->slim_memmap_p);
1731 out_idr_remove:
1732         idr_remove(&lpfc_hba_index, phba->brd_no);
1733 out_put_host:
1734         phba->host = NULL;
1735         scsi_host_put(host);
1736 out_release_regions:
1737         pci_release_regions(pdev);
1738 out_disable_device:
1739         pci_disable_device(pdev);
1740 out:
1741         pci_set_drvdata(pdev, NULL);
1742         return error;
1743 }
1744
1745 static void __devexit
1746 lpfc_pci_remove_one(struct pci_dev *pdev)
1747 {
1748         struct Scsi_Host   *host = pci_get_drvdata(pdev);
1749         struct lpfc_hba    *phba = (struct lpfc_hba *)host->hostdata;
1750         unsigned long iflag;
1751
1752         lpfc_free_sysfs_attr(phba);
1753
1754         spin_lock_irqsave(phba->host->host_lock, iflag);
1755         phba->fc_flag |= FC_UNLOADING;
1756
1757         spin_unlock_irqrestore(phba->host->host_lock, iflag);
1758
1759         fc_remove_host(phba->host);
1760         scsi_remove_host(phba->host);
1761
1762         kthread_stop(phba->worker_thread);
1763
1764         /*
1765          * Bring down the SLI Layer. This step disable all interrupts,
1766          * clears the rings, discards all mailbox commands, and resets
1767          * the HBA.
1768          */
1769         lpfc_sli_hba_down(phba);
1770         lpfc_sli_brdrestart(phba);
1771
1772         /* Release the irq reservation */
1773         free_irq(phba->pcidev->irq, phba);
1774         pci_disable_msi(phba->pcidev);
1775
1776         lpfc_cleanup(phba, 0);
1777         lpfc_stop_timer(phba);
1778         phba->work_hba_events = 0;
1779
1780         /*
1781          * Call scsi_free before mem_free since scsi bufs are released to their
1782          * corresponding pools here.
1783          */
1784         lpfc_scsi_free(phba);
1785         lpfc_mem_free(phba);
1786
1787         /* Free resources associated with SLI2 interface */
1788         dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE,
1789                           phba->slim2p, phba->slim2p_mapping);
1790
1791         /* unmap adapter SLIM and Control Registers */
1792         iounmap(phba->ctrl_regs_memmap_p);
1793         iounmap(phba->slim_memmap_p);
1794
1795         pci_release_regions(phba->pcidev);
1796         pci_disable_device(phba->pcidev);
1797
1798         idr_remove(&lpfc_hba_index, phba->brd_no);
1799         scsi_host_put(phba->host);
1800
1801         pci_set_drvdata(pdev, NULL);
1802 }
1803
1804 /**
1805  * lpfc_io_error_detected - called when PCI error is detected
1806  * @pdev: Pointer to PCI device
1807  * @state: The current pci conneection state
1808  *
1809  * This function is called after a PCI bus error affecting
1810  * this device has been detected.
1811  */
1812 static pci_ers_result_t lpfc_io_error_detected(struct pci_dev *pdev,
1813                                 pci_channel_state_t state)
1814 {
1815         struct Scsi_Host *host = pci_get_drvdata(pdev);
1816         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1817         struct lpfc_sli *psli = &phba->sli;
1818         struct lpfc_sli_ring  *pring;
1819
1820         if (state == pci_channel_io_perm_failure)
1821                 return PCI_ERS_RESULT_DISCONNECT;
1822
1823         pci_disable_device(pdev);
1824         /*
1825          * There may be I/Os dropped by the firmware.
1826          * Error iocb (I/O) on txcmplq and let the SCSI layer
1827          * retry it after re-establishing link.
1828          */
1829         pring = &psli->ring[psli->fcp_ring];
1830         lpfc_sli_abort_iocb_ring(phba, pring);
1831
1832         /* Request a slot reset. */
1833         return PCI_ERS_RESULT_NEED_RESET;
1834 }
1835
1836 /**
1837  * lpfc_io_slot_reset - called after the pci bus has been reset.
1838  * @pdev: Pointer to PCI device
1839  *
1840  * Restart the card from scratch, as if from a cold-boot.
1841  */
1842 static pci_ers_result_t lpfc_io_slot_reset(struct pci_dev *pdev)
1843 {
1844         struct Scsi_Host *host = pci_get_drvdata(pdev);
1845         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1846         struct lpfc_sli *psli = &phba->sli;
1847         int bars = pci_select_bars(pdev, IORESOURCE_MEM);
1848
1849         dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n");
1850         if (pci_enable_device_bars(pdev, bars)) {
1851                 printk(KERN_ERR "lpfc: Cannot re-enable "
1852                         "PCI device after reset.\n");
1853                 return PCI_ERS_RESULT_DISCONNECT;
1854         }
1855
1856         pci_set_master(pdev);
1857
1858         /* Re-establishing Link */
1859         spin_lock_irq(phba->host->host_lock);
1860         phba->fc_flag |= FC_ESTABLISH_LINK;
1861         psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
1862         spin_unlock_irq(phba->host->host_lock);
1863
1864
1865         /* Take device offline; this will perform cleanup */
1866         lpfc_offline(phba);
1867         lpfc_sli_brdrestart(phba);
1868
1869         return PCI_ERS_RESULT_RECOVERED;
1870 }
1871
1872 /**
1873  * lpfc_io_resume - called when traffic can start flowing again.
1874  * @pdev: Pointer to PCI device
1875  *
1876  * This callback is called when the error recovery driver tells us that
1877  * its OK to resume normal operation.
1878  */
1879 static void lpfc_io_resume(struct pci_dev *pdev)
1880 {
1881         struct Scsi_Host *host = pci_get_drvdata(pdev);
1882         struct lpfc_hba *phba = (struct lpfc_hba *)host->hostdata;
1883
1884         if (lpfc_online(phba) == 0) {
1885                 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
1886         }
1887 }
1888
1889 static struct pci_device_id lpfc_id_table[] = {
1890         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
1891                 PCI_ANY_ID, PCI_ANY_ID, },
1892         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_FIREFLY,
1893                 PCI_ANY_ID, PCI_ANY_ID, },
1894         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_THOR,
1895                 PCI_ANY_ID, PCI_ANY_ID, },
1896         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PEGASUS,
1897                 PCI_ANY_ID, PCI_ANY_ID, },
1898         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_CENTAUR,
1899                 PCI_ANY_ID, PCI_ANY_ID, },
1900         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_DRAGONFLY,
1901                 PCI_ANY_ID, PCI_ANY_ID, },
1902         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_SUPERFLY,
1903                 PCI_ANY_ID, PCI_ANY_ID, },
1904         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_RFLY,
1905                 PCI_ANY_ID, PCI_ANY_ID, },
1906         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_PFLY,
1907                 PCI_ANY_ID, PCI_ANY_ID, },
1908         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE,
1909                 PCI_ANY_ID, PCI_ANY_ID, },
1910         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_SCSP,
1911                 PCI_ANY_ID, PCI_ANY_ID, },
1912         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_NEPTUNE_DCSP,
1913                 PCI_ANY_ID, PCI_ANY_ID, },
1914         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS,
1915                 PCI_ANY_ID, PCI_ANY_ID, },
1916         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_SCSP,
1917                 PCI_ANY_ID, PCI_ANY_ID, },
1918         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_HELIOS_DCSP,
1919                 PCI_ANY_ID, PCI_ANY_ID, },
1920         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BMID,
1921                 PCI_ANY_ID, PCI_ANY_ID, },
1922         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_BSMB,
1923                 PCI_ANY_ID, PCI_ANY_ID, },
1924         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR,
1925                 PCI_ANY_ID, PCI_ANY_ID, },
1926         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_SCSP,
1927                 PCI_ANY_ID, PCI_ANY_ID, },
1928         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZEPHYR_DCSP,
1929                 PCI_ANY_ID, PCI_ANY_ID, },
1930         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZMID,
1931                 PCI_ANY_ID, PCI_ANY_ID, },
1932         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_ZSMB,
1933                 PCI_ANY_ID, PCI_ANY_ID, },
1934         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_TFLY,
1935                 PCI_ANY_ID, PCI_ANY_ID, },
1936         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP101,
1937                 PCI_ANY_ID, PCI_ANY_ID, },
1938         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP10000S,
1939                 PCI_ANY_ID, PCI_ANY_ID, },
1940         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LP11000S,
1941                 PCI_ANY_ID, PCI_ANY_ID, },
1942         {PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_LPE11000S,
1943                 PCI_ANY_ID, PCI_ANY_ID, },
1944         { 0 }
1945 };
1946
1947 MODULE_DEVICE_TABLE(pci, lpfc_id_table);
1948
1949 static struct pci_error_handlers lpfc_err_handler = {
1950         .error_detected = lpfc_io_error_detected,
1951         .slot_reset = lpfc_io_slot_reset,
1952         .resume = lpfc_io_resume,
1953 };
1954
1955 static struct pci_driver lpfc_driver = {
1956         .name           = LPFC_DRIVER_NAME,
1957         .id_table       = lpfc_id_table,
1958         .probe          = lpfc_pci_probe_one,
1959         .remove         = __devexit_p(lpfc_pci_remove_one),
1960         .err_handler = &lpfc_err_handler,
1961 };
1962
1963 static int __init
1964 lpfc_init(void)
1965 {
1966         int error = 0;
1967
1968         printk(LPFC_MODULE_DESC "\n");
1969         printk(LPFC_COPYRIGHT "\n");
1970
1971         lpfc_transport_template =
1972                                 fc_attach_transport(&lpfc_transport_functions);
1973         if (!lpfc_transport_template)
1974                 return -ENOMEM;
1975         error = pci_register_driver(&lpfc_driver);
1976         if (error)
1977                 fc_release_transport(lpfc_transport_template);
1978
1979         return error;
1980 }
1981
1982 static void __exit
1983 lpfc_exit(void)
1984 {
1985         pci_unregister_driver(&lpfc_driver);
1986         fc_release_transport(lpfc_transport_template);
1987 }
1988
1989 module_init(lpfc_init);
1990 module_exit(lpfc_exit);
1991 MODULE_LICENSE("GPL");
1992 MODULE_DESCRIPTION(LPFC_MODULE_DESC);
1993 MODULE_AUTHOR("Emulex Corporation - tech.support@emulex.com");
1994 MODULE_VERSION("0:" LPFC_DRIVER_VERSION);