SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/scsi/lpfc/lpfc_sli.c

   1 /*******************************************************************
   2  * This file is part of the Emulex Linux Device Driver for         *
   3  * Fibre Channel Host Bus Adapters.                                *
   4  * Copyright (C) 2004-2007 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/pci.h>
  24 #include <linux/interrupt.h>
  25 #include <linux/delay.h>
  26
  27 #include <scsi/scsi.h>
  28 #include <scsi/scsi_cmnd.h>
  29 #include <scsi/scsi_device.h>
  30 #include <scsi/scsi_host.h>
  31 #include <scsi/scsi_transport_fc.h>
  32
  33 #include "lpfc_hw.h"
  34 #include "lpfc_sli.h"
  35 #include "lpfc_disc.h"
  36 #include "lpfc_scsi.h"
  37 #include "lpfc.h"
  38 #include "lpfc_crtn.h"
  39 #include "lpfc_logmsg.h"
  40 #include "lpfc_compat.h"
  41 #include "lpfc_debugfs.h"
  42
  43 /*
  44  * Define macro to log: Mailbox command x%x cannot issue Data
  45  * This allows multiple uses of lpfc_msgBlk0311
  46  * w/o perturbing log msg utility.
  47  */
  48 #define LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag) \
  49                         lpfc_printf_log(phba, \
  50                                 KERN_INFO, \
  51                                 LOG_MBOX | LOG_SLI, \
  52                                 "(%d):0311 Mailbox command x%x cannot " \
  53                                 "issue Data: x%x x%x x%x\n", \
  54                                 pmbox->vport ? pmbox->vport->vpi : 0, \
  55                                 pmbox->mb.mbxCommand,           \
  56                                 phba->pport->port_state,        \
  57                                 psli->sli_flag, \
  58                                 flag)
  59
  60
  61 /* There are only four IOCB completion types. */
  62 typedef enum _lpfc_iocb_type {
  63         LPFC_UNKNOWN_IOCB,
  64         LPFC_UNSOL_IOCB,
  65         LPFC_SOL_IOCB,
  66         LPFC_ABORT_IOCB
  67 } lpfc_iocb_type;
  68
  69                 /* SLI-2/SLI-3 provide different sized iocbs.  Given a pointer
  70                  * to the start of the ring, and the slot number of the
  71                  * desired iocb entry, calc a pointer to that entry.
  72                  */
  73 static inline IOCB_t *
  74 lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
  75 {
  76         return (IOCB_t *) (((char *) pring->cmdringaddr) +
  77                            pring->cmdidx * phba->iocb_cmd_size);
  78 }
  79
  80 static inline IOCB_t *
  81 lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
  82 {
  83         return (IOCB_t *) (((char *) pring->rspringaddr) +
  84                            pring->rspidx * phba->iocb_rsp_size);
  85 }
  86
  87 static struct lpfc_iocbq *
  88 __lpfc_sli_get_iocbq(struct lpfc_hba *phba)
  89 {
  90         struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
  91         struct lpfc_iocbq * iocbq = NULL;
  92
  93         list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
  94         return iocbq;
  95 }
  96
  97 struct lpfc_iocbq *
  98 lpfc_sli_get_iocbq(struct lpfc_hba *phba)
  99 {
 100         struct lpfc_iocbq * iocbq = NULL;
 101         unsigned long iflags;
 102
 103         spin_lock_irqsave(&phba->hbalock, iflags);
 104         iocbq = __lpfc_sli_get_iocbq(phba);
 105         spin_unlock_irqrestore(&phba->hbalock, iflags);
 106         return iocbq;
 107 }
 108
 109 void
 110 __lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 111 {
 112         size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
 113
 114         /*
 115          * Clean all volatile data fields, preserve iotag and node struct.
 116          */
 117         memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
 118         list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
 119 }
 120
 121 void
 122 lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 123 {
 124         unsigned long iflags;
 125
 126         /*
 127          * Clean all volatile data fields, preserve iotag and node struct.
 128          */
 129         spin_lock_irqsave(&phba->hbalock, iflags);
 130         __lpfc_sli_release_iocbq(phba, iocbq);
 131         spin_unlock_irqrestore(&phba->hbalock, iflags);
 132 }
 133
 134 /*
 135  * Translate the iocb command to an iocb command type used to decide the final
 136  * disposition of each completed IOCB.
 137  */
 138 static lpfc_iocb_type
 139 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
 140 {
 141         lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
 142
 143         if (iocb_cmnd > CMD_MAX_IOCB_CMD)
 144                 return 0;
 145
 146         switch (iocb_cmnd) {
 147         case CMD_XMIT_SEQUENCE_CR:
 148         case CMD_XMIT_SEQUENCE_CX:
 149         case CMD_XMIT_BCAST_CN:
 150         case CMD_XMIT_BCAST_CX:
 151         case CMD_ELS_REQUEST_CR:
 152         case CMD_ELS_REQUEST_CX:
 153         case CMD_CREATE_XRI_CR:
 154         case CMD_CREATE_XRI_CX:
 155         case CMD_GET_RPI_CN:
 156         case CMD_XMIT_ELS_RSP_CX:
 157         case CMD_GET_RPI_CR:
 158         case CMD_FCP_IWRITE_CR:
 159         case CMD_FCP_IWRITE_CX:
 160         case CMD_FCP_IREAD_CR:
 161         case CMD_FCP_IREAD_CX:
 162         case CMD_FCP_ICMND_CR:
 163         case CMD_FCP_ICMND_CX:
 164         case CMD_FCP_TSEND_CX:
 165         case CMD_FCP_TRSP_CX:
 166         case CMD_FCP_TRECEIVE_CX:
 167         case CMD_FCP_AUTO_TRSP_CX:
 168         case CMD_ADAPTER_MSG:
 169         case CMD_ADAPTER_DUMP:
 170         case CMD_XMIT_SEQUENCE64_CR:
 171         case CMD_XMIT_SEQUENCE64_CX:
 172         case CMD_XMIT_BCAST64_CN:
 173         case CMD_XMIT_BCAST64_CX:
 174         case CMD_ELS_REQUEST64_CR:
 175         case CMD_ELS_REQUEST64_CX:
 176         case CMD_FCP_IWRITE64_CR:
 177         case CMD_FCP_IWRITE64_CX:
 178         case CMD_FCP_IREAD64_CR:
 179         case CMD_FCP_IREAD64_CX:
 180         case CMD_FCP_ICMND64_CR:
 181         case CMD_FCP_ICMND64_CX:
 182         case CMD_FCP_TSEND64_CX:
 183         case CMD_FCP_TRSP64_CX:
 184         case CMD_FCP_TRECEIVE64_CX:
 185         case CMD_GEN_REQUEST64_CR:
 186         case CMD_GEN_REQUEST64_CX:
 187         case CMD_XMIT_ELS_RSP64_CX:
 188                 type = LPFC_SOL_IOCB;
 189                 break;
 190         case CMD_ABORT_XRI_CN:
 191         case CMD_ABORT_XRI_CX:
 192         case CMD_CLOSE_XRI_CN:
 193         case CMD_CLOSE_XRI_CX:
 194         case CMD_XRI_ABORTED_CX:
 195         case CMD_ABORT_MXRI64_CN:
 196                 type = LPFC_ABORT_IOCB;
 197                 break;
 198         case CMD_RCV_SEQUENCE_CX:
 199         case CMD_RCV_ELS_REQ_CX:
 200         case CMD_RCV_SEQUENCE64_CX:
 201         case CMD_RCV_ELS_REQ64_CX:
 202         case CMD_ASYNC_STATUS:
 203         case CMD_IOCB_RCV_SEQ64_CX:
 204         case CMD_IOCB_RCV_ELS64_CX:
 205         case CMD_IOCB_RCV_CONT64_CX:
 206                 type = LPFC_UNSOL_IOCB;
 207                 break;
 208         default:
 209                 type = LPFC_UNKNOWN_IOCB;
 210                 break;
 211         }
 212
 213         return type;
 214 }
 215
 216 static int
 217 lpfc_sli_ring_map(struct lpfc_hba *phba)
 218 {
 219         struct lpfc_sli *psli = &phba->sli;
 220         LPFC_MBOXQ_t *pmb;
 221         MAILBOX_t *pmbox;
 222         int i, rc, ret = 0;
 223
 224         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 225         if (!pmb)
 226                 return -ENOMEM;
 227         pmbox = &pmb->mb;
 228         phba->link_state = LPFC_INIT_MBX_CMDS;
 229         for (i = 0; i < psli->num_rings; i++) {
 230                 lpfc_config_ring(phba, i, pmb);
 231                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 232                 if (rc != MBX_SUCCESS) {
 233                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 234                                         "0446 Adapter failed to init (%d), "
 235                                         "mbxCmd x%x CFG_RING, mbxStatus x%x, "
 236                                         "ring %d\n",
 237                                         rc, pmbox->mbxCommand,
 238                                         pmbox->mbxStatus, i);
 239                         phba->link_state = LPFC_HBA_ERROR;
 240                         ret = -ENXIO;
 241                         break;
 242                 }
 243         }
 244         mempool_free(pmb, phba->mbox_mem_pool);
 245         return ret;
 246 }
 247
 248 static int
 249 lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 250                         struct lpfc_iocbq *piocb)
 251 {
 252         list_add_tail(&piocb->list, &pring->txcmplq);
 253         pring->txcmplq_cnt++;
 254         if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
 255            (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
 256            (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
 257                 if (!piocb->vport)
 258                         BUG();
 259                 else
 260                         mod_timer(&piocb->vport->els_tmofunc,
 261                                   jiffies + HZ * (phba->fc_ratov << 1));
 262         }
 263
 264
 265         return 0;
 266 }
 267
 268 static struct lpfc_iocbq *
 269 lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 270 {
 271         struct lpfc_iocbq *cmd_iocb;
 272
 273         list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
 274         if (cmd_iocb != NULL)
 275                 pring->txq_cnt--;
 276         return cmd_iocb;
 277 }
 278
 279 static IOCB_t *
 280 lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 281 {
 282         struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
 283                 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
 284                 &phba->slim2p->mbx.us.s2.port[pring->ringno];
 285         uint32_t  max_cmd_idx = pring->numCiocb;
 286
 287         if ((pring->next_cmdidx == pring->cmdidx) &&
 288            (++pring->next_cmdidx >= max_cmd_idx))
 289                 pring->next_cmdidx = 0;
 290
 291         if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
 292
 293                 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
 294
 295                 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
 296                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 297                                         "0315 Ring %d issue: portCmdGet %d "
 298                                         "is bigger then cmd ring %d\n",
 299                                         pring->ringno,
 300                                         pring->local_getidx, max_cmd_idx);
 301
 302                         phba->link_state = LPFC_HBA_ERROR;
 303                         /*
 304                          * All error attention handlers are posted to
 305                          * worker thread
 306                          */
 307                         phba->work_ha |= HA_ERATT;
 308                         phba->work_hs = HS_FFER3;
 309
 310                         /* hbalock should already be held */
 311                         if (phba->work_wait)
 312                                 lpfc_worker_wake_up(phba);
 313
 314                         return NULL;
 315                 }
 316
 317                 if (pring->local_getidx == pring->next_cmdidx)
 318                         return NULL;
 319         }
 320
 321         return lpfc_cmd_iocb(phba, pring);
 322 }
 323
 324 uint16_t
 325 lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 326 {
 327         struct lpfc_iocbq **new_arr;
 328         struct lpfc_iocbq **old_arr;
 329         size_t new_len;
 330         struct lpfc_sli *psli = &phba->sli;
 331         uint16_t iotag;
 332
 333         spin_lock_irq(&phba->hbalock);
 334         iotag = psli->last_iotag;
 335         if(++iotag < psli->iocbq_lookup_len) {
 336                 psli->last_iotag = iotag;
 337                 psli->iocbq_lookup[iotag] = iocbq;
 338                 spin_unlock_irq(&phba->hbalock);
 339                 iocbq->iotag = iotag;
 340                 return iotag;
 341         } else if (psli->iocbq_lookup_len < (0xffff
 342                                            - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
 343                 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
 344                 spin_unlock_irq(&phba->hbalock);
 345                 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
 346                                   GFP_KERNEL);
 347                 if (new_arr) {
 348                         spin_lock_irq(&phba->hbalock);
 349                         old_arr = psli->iocbq_lookup;
 350                         if (new_len <= psli->iocbq_lookup_len) {
 351                                 /* highly unprobable case */
 352                                 kfree(new_arr);
 353                                 iotag = psli->last_iotag;
 354                                 if(++iotag < psli->iocbq_lookup_len) {
 355                                         psli->last_iotag = iotag;
 356                                         psli->iocbq_lookup[iotag] = iocbq;
 357                                         spin_unlock_irq(&phba->hbalock);
 358                                         iocbq->iotag = iotag;
 359                                         return iotag;
 360                                 }
 361                                 spin_unlock_irq(&phba->hbalock);
 362                                 return 0;
 363                         }
 364                         if (psli->iocbq_lookup)
 365                                 memcpy(new_arr, old_arr,
 366                                        ((psli->last_iotag  + 1) *
 367                                         sizeof (struct lpfc_iocbq *)));
 368                         psli->iocbq_lookup = new_arr;
 369                         psli->iocbq_lookup_len = new_len;
 370                         psli->last_iotag = iotag;
 371                         psli->iocbq_lookup[iotag] = iocbq;
 372                         spin_unlock_irq(&phba->hbalock);
 373                         iocbq->iotag = iotag;
 374                         kfree(old_arr);
 375                         return iotag;
 376                 }
 377         } else
 378                 spin_unlock_irq(&phba->hbalock);
 379
 380         lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
 381                         "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
 382                         psli->last_iotag);
 383
 384         return 0;
 385 }
 386
 387 static void
 388 lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 389                 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
 390 {
 391         /*
 392          * Set up an iotag
 393          */
 394         nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
 395
 396         if (pring->ringno == LPFC_ELS_RING) {
 397                 lpfc_debugfs_slow_ring_trc(phba,
 398                         "IOCB cmd ring:   wd4:x%08x wd6:x%08x wd7:x%08x",
 399                         *(((uint32_t *) &nextiocb->iocb) + 4),
 400                         *(((uint32_t *) &nextiocb->iocb) + 6),
 401                         *(((uint32_t *) &nextiocb->iocb) + 7));
 402         }
 403
 404         /*
 405          * Issue iocb command to adapter
 406          */
 407         lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
 408         wmb();
 409         pring->stats.iocb_cmd++;
 410
 411         /*
 412          * If there is no completion routine to call, we can release the
 413          * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
 414          * that have no rsp ring completion, iocb_cmpl MUST be NULL.
 415          */
 416         if (nextiocb->iocb_cmpl)
 417                 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
 418         else
 419                 __lpfc_sli_release_iocbq(phba, nextiocb);
 420
 421         /*
 422          * Let the HBA know what IOCB slot will be the next one the
 423          * driver will put a command into.
 424          */
 425         pring->cmdidx = pring->next_cmdidx;
 426         writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
 427 }
 428
 429 static void
 430 lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 431 {
 432         int ringno = pring->ringno;
 433
 434         pring->flag |= LPFC_CALL_RING_AVAILABLE;
 435
 436         wmb();
 437
 438         /*
 439          * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
 440          * The HBA will tell us when an IOCB entry is available.
 441          */
 442         writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
 443         readl(phba->CAregaddr); /* flush */
 444
 445         pring->stats.iocb_cmd_full++;
 446 }
 447
 448 static void
 449 lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 450 {
 451         int ringno = pring->ringno;
 452
 453         /*
 454          * Tell the HBA that there is work to do in this ring.
 455          */
 456         wmb();
 457         writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
 458         readl(phba->CAregaddr); /* flush */
 459 }
 460
 461 static void
 462 lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
 463 {
 464         IOCB_t *iocb;
 465         struct lpfc_iocbq *nextiocb;
 466
 467         /*
 468          * Check to see if:
 469          *  (a) there is anything on the txq to send
 470          *  (b) link is up
 471          *  (c) link attention events can be processed (fcp ring only)
 472          *  (d) IOCB processing is not blocked by the outstanding mbox command.
 473          */
 474         if (pring->txq_cnt &&
 475             lpfc_is_link_up(phba) &&
 476             (pring->ringno != phba->sli.fcp_ring ||
 477              phba->sli.sli_flag & LPFC_PROCESS_LA)) {
 478
 479                 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
 480                        (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
 481                         lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
 482
 483                 if (iocb)
 484                         lpfc_sli_update_ring(phba, pring);
 485                 else
 486                         lpfc_sli_update_full_ring(phba, pring);
 487         }
 488
 489         return;
 490 }
 491
 492 struct lpfc_hbq_entry *
 493 lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
 494 {
 495         struct hbq_s *hbqp = &phba->hbqs[hbqno];
 496
 497         if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
 498             ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
 499                 hbqp->next_hbqPutIdx = 0;
 500
 501         if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
 502                 uint32_t raw_index = phba->hbq_get[hbqno];
 503                 uint32_t getidx = le32_to_cpu(raw_index);
 504
 505                 hbqp->local_hbqGetIdx = getidx;
 506
 507                 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
 508                         lpfc_printf_log(phba, KERN_ERR,
 509                                         LOG_SLI | LOG_VPORT,
 510                                         "1802 HBQ %d: local_hbqGetIdx "
 511                                         "%u is > than hbqp->entry_count %u\n",
 512                                         hbqno, hbqp->local_hbqGetIdx,
 513                                         hbqp->entry_count);
 514
 515                         phba->link_state = LPFC_HBA_ERROR;
 516                         return NULL;
 517                 }
 518
 519                 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
 520                         return NULL;
 521         }
 522
 523         return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
 524                         hbqp->hbqPutIdx;
 525 }
 526
 527 void
 528 lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
 529 {
 530         struct lpfc_dmabuf *dmabuf, *next_dmabuf;
 531         struct hbq_dmabuf *hbq_buf;
 532         int i, hbq_count;
 533
 534         hbq_count = lpfc_sli_hbq_count();
 535         /* Return all memory used by all HBQs */
 536         for (i = 0; i < hbq_count; ++i) {
 537                 list_for_each_entry_safe(dmabuf, next_dmabuf,
 538                                 &phba->hbqs[i].hbq_buffer_list, list) {
 539                         hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
 540                         list_del(&hbq_buf->dbuf.list);
 541                         (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
 542                 }
 543                 phba->hbqs[i].buffer_count = 0;
 544         }
 545 }
 546
 547 static struct lpfc_hbq_entry *
 548 lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
 549                          struct hbq_dmabuf *hbq_buf)
 550 {
 551         struct lpfc_hbq_entry *hbqe;
 552         dma_addr_t physaddr = hbq_buf->dbuf.phys;
 553
 554         /* Get next HBQ entry slot to use */
 555         hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
 556         if (hbqe) {
 557                 struct hbq_s *hbqp = &phba->hbqs[hbqno];
 558
 559                 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
 560                 hbqe->bde.addrLow  = le32_to_cpu(putPaddrLow(physaddr));
 561                 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
 562                 hbqe->bde.tus.f.bdeFlags = 0;
 563                 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
 564                 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
 565                                 /* Sync SLIM */
 566                 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
 567                 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
 568                                 /* flush */
 569                 readl(phba->hbq_put + hbqno);
 570                 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
 571         }
 572         return hbqe;
 573 }
 574
 575 static struct lpfc_hbq_init lpfc_els_hbq = {
 576         .rn = 1,
 577         .entry_count = 200,
 578         .mask_count = 0,
 579         .profile = 0,
 580         .ring_mask = (1 << LPFC_ELS_RING),
 581         .buffer_count = 0,
 582         .init_count = 20,
 583         .add_count = 5,
 584 };
 585
 586 static struct lpfc_hbq_init lpfc_extra_hbq = {
 587         .rn = 1,
 588         .entry_count = 200,
 589         .mask_count = 0,
 590         .profile = 0,
 591         .ring_mask = (1 << LPFC_EXTRA_RING),
 592         .buffer_count = 0,
 593         .init_count = 0,
 594         .add_count = 5,
 595 };
 596
 597 struct lpfc_hbq_init *lpfc_hbq_defs[] = {
 598         &lpfc_els_hbq,
 599         &lpfc_extra_hbq,
 600 };
 601
 602 static int
 603 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
 604 {
 605         uint32_t i, start, end;
 606         struct hbq_dmabuf *hbq_buffer;
 607
 608         if (!phba->hbqs[hbqno].hbq_alloc_buffer) {
 609                 return 0;
 610         }
 611
 612         start = phba->hbqs[hbqno].buffer_count;
 613         end = count + start;
 614         if (end > lpfc_hbq_defs[hbqno]->entry_count) {
 615                 end = lpfc_hbq_defs[hbqno]->entry_count;
 616         }
 617
 618         /* Populate HBQ entries */
 619         for (i = start; i < end; i++) {
 620                 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
 621                 if (!hbq_buffer)
 622                         return 1;
 623                 hbq_buffer->tag = (i | (hbqno << 16));
 624                 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
 625                         phba->hbqs[hbqno].buffer_count++;
 626                 else
 627                         (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
 628         }
 629         return 0;
 630 }
 631
 632 int
 633 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
 634 {
 635         return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
 636                                          lpfc_hbq_defs[qno]->add_count));
 637 }
 638
 639 int
 640 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
 641 {
 642         return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
 643                                          lpfc_hbq_defs[qno]->init_count));
 644 }
 645
 646 struct hbq_dmabuf *
 647 lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
 648 {
 649         struct lpfc_dmabuf *d_buf;
 650         struct hbq_dmabuf *hbq_buf;
 651         uint32_t hbqno;
 652
 653         hbqno = tag >> 16;
 654         if (hbqno >= LPFC_MAX_HBQS)
 655                 return NULL;
 656
 657         list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
 658                 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
 659                 if (hbq_buf->tag == tag) {
 660                         return hbq_buf;
 661                 }
 662         }
 663         lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
 664                         "1803 Bad hbq tag. Data: x%x x%x\n",
 665                         tag, phba->hbqs[tag >> 16].buffer_count);
 666         return NULL;
 667 }
 668
 669 void
 670 lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
 671 {
 672         uint32_t hbqno;
 673
 674         if (hbq_buffer) {
 675                 hbqno = hbq_buffer->tag >> 16;
 676                 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
 677                         (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
 678                 }
 679         }
 680 }
 681
 682 static int
 683 lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
 684 {
 685         uint8_t ret;
 686
 687         switch (mbxCommand) {
 688         case MBX_LOAD_SM:
 689         case MBX_READ_NV:
 690         case MBX_WRITE_NV:
 691         case MBX_WRITE_VPARMS:
 692         case MBX_RUN_BIU_DIAG:
 693         case MBX_INIT_LINK:
 694         case MBX_DOWN_LINK:
 695         case MBX_CONFIG_LINK:
 696         case MBX_CONFIG_RING:
 697         case MBX_RESET_RING:
 698         case MBX_READ_CONFIG:
 699         case MBX_READ_RCONFIG:
 700         case MBX_READ_SPARM:
 701         case MBX_READ_STATUS:
 702         case MBX_READ_RPI:
 703         case MBX_READ_XRI:
 704         case MBX_READ_REV:
 705         case MBX_READ_LNK_STAT:
 706         case MBX_REG_LOGIN:
 707         case MBX_UNREG_LOGIN:
 708         case MBX_READ_LA:
 709         case MBX_CLEAR_LA:
 710         case MBX_DUMP_MEMORY:
 711         case MBX_DUMP_CONTEXT:
 712         case MBX_RUN_DIAGS:
 713         case MBX_RESTART:
 714         case MBX_UPDATE_CFG:
 715         case MBX_DOWN_LOAD:
 716         case MBX_DEL_LD_ENTRY:
 717         case MBX_RUN_PROGRAM:
 718         case MBX_SET_MASK:
 719         case MBX_SET_SLIM:
 720         case MBX_UNREG_D_ID:
 721         case MBX_KILL_BOARD:
 722         case MBX_CONFIG_FARP:
 723         case MBX_BEACON:
 724         case MBX_LOAD_AREA:
 725         case MBX_RUN_BIU_DIAG64:
 726         case MBX_CONFIG_PORT:
 727         case MBX_READ_SPARM64:
 728         case MBX_READ_RPI64:
 729         case MBX_REG_LOGIN64:
 730         case MBX_READ_LA64:
 731         case MBX_FLASH_WR_ULA:
 732         case MBX_SET_DEBUG:
 733         case MBX_LOAD_EXP_ROM:
 734         case MBX_ASYNCEVT_ENABLE:
 735         case MBX_REG_VPI:
 736         case MBX_UNREG_VPI:
 737         case MBX_HEARTBEAT:
 738                 ret = mbxCommand;
 739                 break;
 740         default:
 741                 ret = MBX_SHUTDOWN;
 742                 break;
 743         }
 744         return ret;
 745 }
 746 static void
 747 lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 748 {
 749         wait_queue_head_t *pdone_q;
 750         unsigned long drvr_flag;
 751
 752         /*
 753          * If pdone_q is empty, the driver thread gave up waiting and
 754          * continued running.
 755          */
 756         pmboxq->mbox_flag |= LPFC_MBX_WAKE;
 757         spin_lock_irqsave(&phba->hbalock, drvr_flag);
 758         pdone_q = (wait_queue_head_t *) pmboxq->context1;
 759         if (pdone_q)
 760                 wake_up_interruptible(pdone_q);
 761         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
 762         return;
 763 }
 764
 765 void
 766 lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 767 {
 768         struct lpfc_dmabuf *mp;
 769         uint16_t rpi;
 770         int rc;
 771
 772         mp = (struct lpfc_dmabuf *) (pmb->context1);
 773
 774         if (mp) {
 775                 lpfc_mbuf_free(phba, mp->virt, mp->phys);
 776                 kfree(mp);
 777         }
 778
 779         /*
 780          * If a REG_LOGIN succeeded  after node is destroyed or node
 781          * is in re-discovery driver need to cleanup the RPI.
 782          */
 783         if (!(phba->pport->load_flag & FC_UNLOADING) &&
 784             pmb->mb.mbxCommand == MBX_REG_LOGIN64 &&
 785             !pmb->mb.mbxStatus) {
 786
 787                 rpi = pmb->mb.un.varWords[0];
 788                 lpfc_unreg_login(phba, pmb->mb.un.varRegLogin.vpi, rpi, pmb);
 789                 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
 790                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 791                 if (rc != MBX_NOT_FINISHED)
 792                         return;
 793         }
 794
 795         mempool_free(pmb, phba->mbox_mem_pool);
 796         return;
 797 }
 798
 799 int
 800 lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
 801 {
 802         MAILBOX_t *pmbox;
 803         LPFC_MBOXQ_t *pmb;
 804         int rc;
 805         LIST_HEAD(cmplq);
 806
 807         phba->sli.slistat.mbox_event++;
 808
 809         /* Get all completed mailboxe buffers into the cmplq */
 810         spin_lock_irq(&phba->hbalock);
 811         list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
 812         spin_unlock_irq(&phba->hbalock);
 813
 814         /* Get a Mailbox buffer to setup mailbox commands for callback */
 815         do {
 816                 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
 817                 if (pmb == NULL)
 818                         break;
 819
 820                 pmbox = &pmb->mb;
 821
 822                 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
 823                         if (pmb->vport) {
 824                                 lpfc_debugfs_disc_trc(pmb->vport,
 825                                         LPFC_DISC_TRC_MBOX_VPORT,
 826                                         "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
 827                                         (uint32_t)pmbox->mbxCommand,
 828                                         pmbox->un.varWords[0],
 829                                         pmbox->un.varWords[1]);
 830                         }
 831                         else {
 832                                 lpfc_debugfs_disc_trc(phba->pport,
 833                                         LPFC_DISC_TRC_MBOX,
 834                                         "MBOX cmpl:       cmd:x%x mb:x%x x%x",
 835                                         (uint32_t)pmbox->mbxCommand,
 836                                         pmbox->un.varWords[0],
 837                                         pmbox->un.varWords[1]);
 838                         }
 839                 }
 840
 841                 /*
 842                  * It is a fatal error if unknown mbox command completion.
 843                  */
 844                 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
 845                     MBX_SHUTDOWN) {
 846                         /* Unknow mailbox command compl */
 847                         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
 848                                         "(%d):0323 Unknown Mailbox command "
 849                                         "%x Cmpl\n",
 850                                         pmb->vport ? pmb->vport->vpi : 0,
 851                                         pmbox->mbxCommand);
 852                         phba->link_state = LPFC_HBA_ERROR;
 853                         phba->work_hs = HS_FFER3;
 854                         lpfc_handle_eratt(phba);
 855                         continue;
 856                 }
 857
 858                 if (pmbox->mbxStatus) {
 859                         phba->sli.slistat.mbox_stat_err++;
 860                         if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
 861                                 /* Mbox cmd cmpl error - RETRYing */
 862                                 lpfc_printf_log(phba, KERN_INFO,
 863                                                 LOG_MBOX | LOG_SLI,
 864                                                 "(%d):0305 Mbox cmd cmpl "
 865                                                 "error - RETRYing Data: x%x "
 866                                                 "x%x x%x x%x\n",
 867                                                 pmb->vport ? pmb->vport->vpi :0,
 868                                                 pmbox->mbxCommand,
 869                                                 pmbox->mbxStatus,
 870                                                 pmbox->un.varWords[0],
 871                                                 pmb->vport->port_state);
 872                                 pmbox->mbxStatus = 0;
 873                                 pmbox->mbxOwner = OWN_HOST;
 874                                 spin_lock_irq(&phba->hbalock);
 875                                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
 876                                 spin_unlock_irq(&phba->hbalock);
 877                                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
 878                                 if (rc == MBX_SUCCESS)
 879                                         continue;
 880                         }
 881                 }
 882
 883                 /* Mailbox cmd <cmd> Cmpl <cmpl> */
 884                 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
 885                                 "(%d):0307 Mailbox cmd x%x Cmpl x%p "
 886                                 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
 887                                 pmb->vport ? pmb->vport->vpi : 0,
 888                                 pmbox->mbxCommand,
 889                                 pmb->mbox_cmpl,
 890                                 *((uint32_t *) pmbox),
 891                                 pmbox->un.varWords[0],
 892                                 pmbox->un.varWords[1],
 893                                 pmbox->un.varWords[2],
 894                                 pmbox->un.varWords[3],
 895                                 pmbox->un.varWords[4],
 896                                 pmbox->un.varWords[5],
 897                                 pmbox->un.varWords[6],
 898                                 pmbox->un.varWords[7]);
 899
 900                 if (pmb->mbox_cmpl)
 901                         pmb->mbox_cmpl(phba,pmb);
 902         } while (1);
 903         return 0;
 904 }
 905
 906 static struct lpfc_dmabuf *
 907 lpfc_sli_replace_hbqbuff(struct lpfc_hba *phba, uint32_t tag)
 908 {
 909         struct hbq_dmabuf *hbq_entry, *new_hbq_entry;
 910         uint32_t hbqno;
 911         void *virt;             /* virtual address ptr */
 912         dma_addr_t phys;        /* mapped address */
 913
 914         hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
 915         if (hbq_entry == NULL)
 916                 return NULL;
 917         list_del(&hbq_entry->dbuf.list);
 918
 919         hbqno = tag >> 16;
 920         new_hbq_entry = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
 921         if (new_hbq_entry == NULL)
 922                 return &hbq_entry->dbuf;
 923         new_hbq_entry->tag = -1;
 924         phys = new_hbq_entry->dbuf.phys;
 925         virt = new_hbq_entry->dbuf.virt;
 926         new_hbq_entry->dbuf.phys = hbq_entry->dbuf.phys;
 927         new_hbq_entry->dbuf.virt = hbq_entry->dbuf.virt;
 928         hbq_entry->dbuf.phys = phys;
 929         hbq_entry->dbuf.virt = virt;
 930         lpfc_sli_free_hbq(phba, hbq_entry);
 931         return &new_hbq_entry->dbuf;
 932 }
 933
 934
 935 static int
 936 lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 937                             struct lpfc_iocbq *saveq)
 938 {
 939         IOCB_t           * irsp;
 940         WORD5            * w5p;
 941         uint32_t           Rctl, Type;
 942         uint32_t           match, i;
 943
 944         match = 0;
 945         irsp = &(saveq->iocb);
 946
 947         if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
 948                 if (pring->lpfc_sli_rcv_async_status)
 949                         pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
 950                 else
 951                         lpfc_printf_log(phba,
 952                                         KERN_WARNING,
 953                                         LOG_SLI,
 954                                         "0316 Ring %d handler: unexpected "
 955                                         "ASYNC_STATUS iocb received evt_code "
 956                                         "0x%x\n",
 957                                         pring->ringno,
 958                                         irsp->un.asyncstat.evt_code);
 959                 return 1;
 960         }
 961
 962         if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX)
 963             || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)
 964             || (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)
 965             || (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX)) {
 966                 Rctl = FC_ELS_REQ;
 967                 Type = FC_ELS_DATA;
 968         } else {
 969                 w5p =
 970                     (WORD5 *) & (saveq->iocb.un.
 971                                  ulpWord[5]);
 972                 Rctl = w5p->hcsw.Rctl;
 973                 Type = w5p->hcsw.Type;
 974
 975                 /* Firmware Workaround */
 976                 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
 977                         (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
 978                          irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
 979                         Rctl = FC_ELS_REQ;
 980                         Type = FC_ELS_DATA;
 981                         w5p->hcsw.Rctl = Rctl;
 982                         w5p->hcsw.Type = Type;
 983                 }
 984         }
 985
 986         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
 987                 if (irsp->ulpBdeCount != 0)
 988                         saveq->context2 = lpfc_sli_replace_hbqbuff(phba,
 989                                                 irsp->un.ulpWord[3]);
 990                 if (irsp->ulpBdeCount == 2)
 991                         saveq->context3 = lpfc_sli_replace_hbqbuff(phba,
 992                                                 irsp->unsli3.sli3Words[7]);
 993         }
 994
 995         /* unSolicited Responses */
 996         if (pring->prt[0].profile) {
 997                 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
 998                         (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
 999                                                                         saveq);
1000                 match = 1;
1001         } else {
1002                 /* We must search, based on rctl / type
1003                    for the right routine */
1004                 for (i = 0; i < pring->num_mask;
1005                      i++) {
1006                         if ((pring->prt[i].rctl ==
1007                              Rctl)
1008                             && (pring->prt[i].
1009                                 type == Type)) {
1010                                 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1011                                         (pring->prt[i].lpfc_sli_rcv_unsol_event)
1012                                                         (phba, pring, saveq);
1013                                 match = 1;
1014                                 break;
1015                         }
1016                 }
1017         }
1018         if (match == 0) {
1019                 /* Unexpected Rctl / Type received */
1020                 /* Ring <ringno> handler: unexpected
1021                    Rctl <Rctl> Type <Type> received */
1022                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1023                                 "0313 Ring %d handler: unexpected Rctl x%x "
1024                                 "Type x%x received\n",
1025                                 pring->ringno, Rctl, Type);
1026         }
1027         return 1;
1028 }
1029
1030 static struct lpfc_iocbq *
1031 lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
1032                       struct lpfc_sli_ring *pring,
1033                       struct lpfc_iocbq *prspiocb)
1034 {
1035         struct lpfc_iocbq *cmd_iocb = NULL;
1036         uint16_t iotag;
1037
1038         iotag = prspiocb->iocb.ulpIoTag;
1039
1040         if (iotag != 0 && iotag <= phba->sli.last_iotag) {
1041                 cmd_iocb = phba->sli.iocbq_lookup[iotag];
1042                 list_del_init(&cmd_iocb->list);
1043                 pring->txcmplq_cnt--;
1044                 return cmd_iocb;
1045         }
1046
1047         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1048                         "0317 iotag x%x is out off "
1049                         "range: max iotag x%x wd0 x%x\n",
1050                         iotag, phba->sli.last_iotag,
1051                         *(((uint32_t *) &prspiocb->iocb) + 7));
1052         return NULL;
1053 }
1054
1055 static int
1056 lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1057                           struct lpfc_iocbq *saveq)
1058 {
1059         struct lpfc_iocbq *cmdiocbp;
1060         int rc = 1;
1061         unsigned long iflag;
1062
1063         /* Based on the iotag field, get the cmd IOCB from the txcmplq */
1064         spin_lock_irqsave(&phba->hbalock, iflag);
1065         cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
1066         spin_unlock_irqrestore(&phba->hbalock, iflag);
1067
1068         if (cmdiocbp) {
1069                 if (cmdiocbp->iocb_cmpl) {
1070                         /*
1071                          * Post all ELS completions to the worker thread.
1072                          * All other are passed to the completion callback.
1073                          */
1074                         if (pring->ringno == LPFC_ELS_RING) {
1075                                 if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) {
1076                                         cmdiocbp->iocb_flag &=
1077                                                 ~LPFC_DRIVER_ABORTED;
1078                                         saveq->iocb.ulpStatus =
1079                                                 IOSTAT_LOCAL_REJECT;
1080                                         saveq->iocb.un.ulpWord[4] =
1081                                                 IOERR_SLI_ABORTED;
1082                                 }
1083                         }
1084                         (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
1085                 } else
1086                         lpfc_sli_release_iocbq(phba, cmdiocbp);
1087         } else {
1088                 /*
1089                  * Unknown initiating command based on the response iotag.
1090                  * This could be the case on the ELS ring because of
1091                  * lpfc_els_abort().
1092                  */
1093                 if (pring->ringno != LPFC_ELS_RING) {
1094                         /*
1095                          * Ring <ringno> handler: unexpected completion IoTag
1096                          * <IoTag>
1097                          */
1098                         lpfc_printf_vlog(cmdiocbp->vport, KERN_WARNING, LOG_SLI,
1099                                          "0322 Ring %d handler: "
1100                                          "unexpected completion IoTag x%x "
1101                                          "Data: x%x x%x x%x x%x\n",
1102                                          pring->ringno,
1103                                          saveq->iocb.ulpIoTag,
1104                                          saveq->iocb.ulpStatus,
1105                                          saveq->iocb.un.ulpWord[4],
1106                                          saveq->iocb.ulpCommand,
1107                                          saveq->iocb.ulpContext);
1108                 }
1109         }
1110
1111         return rc;
1112 }
1113
1114 static void
1115 lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1116 {
1117         struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
1118                 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1119                 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1120         /*
1121          * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
1122          * rsp ring <portRspMax>
1123          */
1124         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1125                         "0312 Ring %d handler: portRspPut %d "
1126                         "is bigger then rsp ring %d\n",
1127                         pring->ringno, le32_to_cpu(pgp->rspPutInx),
1128                         pring->numRiocb);
1129
1130         phba->link_state = LPFC_HBA_ERROR;
1131
1132         /*
1133          * All error attention handlers are posted to
1134          * worker thread
1135          */
1136         phba->work_ha |= HA_ERATT;
1137         phba->work_hs = HS_FFER3;
1138
1139         /* hbalock should already be held */
1140         if (phba->work_wait)
1141                 lpfc_worker_wake_up(phba);
1142
1143         return;
1144 }
1145
1146 void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
1147 {
1148         struct lpfc_sli      *psli  = &phba->sli;
1149         struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING];
1150         IOCB_t *irsp = NULL;
1151         IOCB_t *entry = NULL;
1152         struct lpfc_iocbq *cmdiocbq = NULL;
1153         struct lpfc_iocbq rspiocbq;
1154         struct lpfc_pgp *pgp;
1155         uint32_t status;
1156         uint32_t portRspPut, portRspMax;
1157         int type;
1158         uint32_t rsp_cmpl = 0;
1159         uint32_t ha_copy;
1160         unsigned long iflags;
1161
1162         pring->stats.iocb_event++;
1163
1164         pgp = (phba->sli_rev == 3) ?
1165                 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1166                 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1167
1168
1169         /*
1170          * The next available response entry should never exceed the maximum
1171          * entries.  If it does, treat it as an adapter hardware error.
1172          */
1173         portRspMax = pring->numRiocb;
1174         portRspPut = le32_to_cpu(pgp->rspPutInx);
1175         if (unlikely(portRspPut >= portRspMax)) {
1176                 lpfc_sli_rsp_pointers_error(phba, pring);
1177                 return;
1178         }
1179
1180         rmb();
1181         while (pring->rspidx != portRspPut) {
1182                 entry = lpfc_resp_iocb(phba, pring);
1183                 if (++pring->rspidx >= portRspMax)
1184                         pring->rspidx = 0;
1185
1186                 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
1187                                       (uint32_t *) &rspiocbq.iocb,
1188                                       phba->iocb_rsp_size);
1189                 irsp = &rspiocbq.iocb;
1190                 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
1191                 pring->stats.iocb_rsp++;
1192                 rsp_cmpl++;
1193
1194                 if (unlikely(irsp->ulpStatus)) {
1195                         /* Rsp ring <ringno> error: IOCB */
1196                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1197                                         "0326 Rsp Ring %d error: IOCB Data: "
1198                                         "x%x x%x x%x x%x x%x x%x x%x x%x\n",
1199                                         pring->ringno,
1200                                         irsp->un.ulpWord[0],
1201                                         irsp->un.ulpWord[1],
1202                                         irsp->un.ulpWord[2],
1203                                         irsp->un.ulpWord[3],
1204                                         irsp->un.ulpWord[4],
1205                                         irsp->un.ulpWord[5],
1206                                         *(((uint32_t *) irsp) + 6),
1207                                         *(((uint32_t *) irsp) + 7));
1208                 }
1209
1210                 switch (type) {
1211                 case LPFC_ABORT_IOCB:
1212                 case LPFC_SOL_IOCB:
1213                         /*
1214                          * Idle exchange closed via ABTS from port.  No iocb
1215                          * resources need to be recovered.
1216                          */
1217                         if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
1218                                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1219                                                 "0314 IOCB cmd 0x%x "
1220                                                 "processed. Skipping "
1221                                                 "completion",
1222                                                 irsp->ulpCommand);
1223                                 break;
1224                         }
1225
1226                         spin_lock_irqsave(&phba->hbalock, iflags);
1227                         cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
1228                                                          &rspiocbq);
1229                         spin_unlock_irqrestore(&phba->hbalock, iflags);
1230                         if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
1231                                 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
1232                                                       &rspiocbq);
1233                         }
1234                         break;
1235                 default:
1236                         if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
1237                                 char adaptermsg[LPFC_MAX_ADPTMSG];
1238                                 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
1239                                 memcpy(&adaptermsg[0], (uint8_t *) irsp,
1240                                        MAX_MSG_DATA);
1241                                 dev_warn(&((phba->pcidev)->dev),
1242                                          "lpfc%d: %s\n",
1243                                          phba->brd_no, adaptermsg);
1244                         } else {
1245                                 /* Unknown IOCB command */
1246                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1247                                                 "0321 Unknown IOCB command "
1248                                                 "Data: x%x, x%x x%x x%x x%x\n",
1249                                                 type, irsp->ulpCommand,
1250                                                 irsp->ulpStatus,
1251                                                 irsp->ulpIoTag,
1252                                                 irsp->ulpContext);
1253                         }
1254                         break;
1255                 }
1256
1257                 /*
1258                  * The response IOCB has been processed.  Update the ring
1259                  * pointer in SLIM.  If the port response put pointer has not
1260                  * been updated, sync the pgp->rspPutInx and fetch the new port
1261                  * response put pointer.
1262                  */
1263                 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
1264
1265                 if (pring->rspidx == portRspPut)
1266                         portRspPut = le32_to_cpu(pgp->rspPutInx);
1267         }
1268
1269         ha_copy = readl(phba->HAregaddr);
1270         ha_copy >>= (LPFC_FCP_RING * 4);
1271
1272         if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
1273                 spin_lock_irqsave(&phba->hbalock, iflags);
1274                 pring->stats.iocb_rsp_full++;
1275                 status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
1276                 writel(status, phba->CAregaddr);
1277                 readl(phba->CAregaddr);
1278                 spin_unlock_irqrestore(&phba->hbalock, iflags);
1279         }
1280         if ((ha_copy & HA_R0CE_RSP) &&
1281             (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
1282                 spin_lock_irqsave(&phba->hbalock, iflags);
1283                 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
1284                 pring->stats.iocb_cmd_empty++;
1285
1286                 /* Force update of the local copy of cmdGetInx */
1287                 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1288                 lpfc_sli_resume_iocb(phba, pring);
1289
1290                 if ((pring->lpfc_sli_cmd_available))
1291                         (pring->lpfc_sli_cmd_available) (phba, pring);
1292
1293                 spin_unlock_irqrestore(&phba->hbalock, iflags);
1294         }
1295
1296         return;
1297 }
1298
1299 /*
1300  * This routine presumes LPFC_FCP_RING handling and doesn't bother
1301  * to check it explicitly.
1302  */
1303 static int
1304 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
1305                                 struct lpfc_sli_ring *pring, uint32_t mask)
1306 {
1307         struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
1308                 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1309                 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1310         IOCB_t *irsp = NULL;
1311         IOCB_t *entry = NULL;
1312         struct lpfc_iocbq *cmdiocbq = NULL;
1313         struct lpfc_iocbq rspiocbq;
1314         uint32_t status;
1315         uint32_t portRspPut, portRspMax;
1316         int rc = 1;
1317         lpfc_iocb_type type;
1318         unsigned long iflag;
1319         uint32_t rsp_cmpl = 0;
1320
1321         spin_lock_irqsave(&phba->hbalock, iflag);
1322         pring->stats.iocb_event++;
1323
1324         /*
1325          * The next available response entry should never exceed the maximum
1326          * entries.  If it does, treat it as an adapter hardware error.
1327          */
1328         portRspMax = pring->numRiocb;
1329         portRspPut = le32_to_cpu(pgp->rspPutInx);
1330         if (unlikely(portRspPut >= portRspMax)) {
1331                 lpfc_sli_rsp_pointers_error(phba, pring);
1332                 spin_unlock_irqrestore(&phba->hbalock, iflag);
1333                 return 1;
1334         }
1335
1336         rmb();
1337         while (pring->rspidx != portRspPut) {
1338                 /*
1339                  * Fetch an entry off the ring and copy it into a local data
1340                  * structure.  The copy involves a byte-swap since the
1341                  * network byte order and pci byte orders are different.
1342                  */
1343                 entry = lpfc_resp_iocb(phba, pring);
1344                 phba->last_completion_time = jiffies;
1345
1346                 if (++pring->rspidx >= portRspMax)
1347                         pring->rspidx = 0;
1348
1349                 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
1350                                       (uint32_t *) &rspiocbq.iocb,
1351                                       phba->iocb_rsp_size);
1352                 INIT_LIST_HEAD(&(rspiocbq.list));
1353                 irsp = &rspiocbq.iocb;
1354
1355                 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
1356                 pring->stats.iocb_rsp++;
1357                 rsp_cmpl++;
1358
1359                 if (unlikely(irsp->ulpStatus)) {
1360                         /*
1361                          * If resource errors reported from HBA, reduce
1362                          * queuedepths of the SCSI device.
1363                          */
1364                         if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1365                                 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
1366                                 spin_unlock_irqrestore(&phba->hbalock, iflag);
1367                                 lpfc_adjust_queue_depth(phba);
1368                                 spin_lock_irqsave(&phba->hbalock, iflag);
1369                         }
1370
1371                         /* Rsp ring <ringno> error: IOCB */
1372                         lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1373                                         "0336 Rsp Ring %d error: IOCB Data: "
1374                                         "x%x x%x x%x x%x x%x x%x x%x x%x\n",
1375                                         pring->ringno,
1376                                         irsp->un.ulpWord[0],
1377                                         irsp->un.ulpWord[1],
1378                                         irsp->un.ulpWord[2],
1379                                         irsp->un.ulpWord[3],
1380                                         irsp->un.ulpWord[4],
1381                                         irsp->un.ulpWord[5],
1382                                         *(((uint32_t *) irsp) + 6),
1383                                         *(((uint32_t *) irsp) + 7));
1384                 }
1385
1386                 switch (type) {
1387                 case LPFC_ABORT_IOCB:
1388                 case LPFC_SOL_IOCB:
1389                         /*
1390                          * Idle exchange closed via ABTS from port.  No iocb
1391                          * resources need to be recovered.
1392                          */
1393                         if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
1394                                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1395                                                 "0333 IOCB cmd 0x%x"
1396                                                 " processed. Skipping"
1397                                                 " completion\n",
1398                                                 irsp->ulpCommand);
1399                                 break;
1400                         }
1401
1402                         cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
1403                                                          &rspiocbq);
1404                         if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
1405                                 if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
1406                                         (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
1407                                                               &rspiocbq);
1408                                 } else {
1409                                         spin_unlock_irqrestore(&phba->hbalock,
1410                                                                iflag);
1411                                         (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
1412                                                               &rspiocbq);
1413                                         spin_lock_irqsave(&phba->hbalock,
1414                                                           iflag);
1415                                 }
1416                         }
1417                         break;
1418                 case LPFC_UNSOL_IOCB:
1419                         spin_unlock_irqrestore(&phba->hbalock, iflag);
1420                         lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
1421                         spin_lock_irqsave(&phba->hbalock, iflag);
1422                         break;
1423                 default:
1424                         if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
1425                                 char adaptermsg[LPFC_MAX_ADPTMSG];
1426                                 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
1427                                 memcpy(&adaptermsg[0], (uint8_t *) irsp,
1428                                        MAX_MSG_DATA);
1429                                 dev_warn(&((phba->pcidev)->dev),
1430                                          "lpfc%d: %s\n",
1431                                          phba->brd_no, adaptermsg);
1432                         } else {
1433                                 /* Unknown IOCB command */
1434                                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1435                                                 "0334 Unknown IOCB command "
1436                                                 "Data: x%x, x%x x%x x%x x%x\n",
1437                                                 type, irsp->ulpCommand,
1438                                                 irsp->ulpStatus,
1439                                                 irsp->ulpIoTag,
1440                                                 irsp->ulpContext);
1441                         }
1442                         break;
1443                 }
1444
1445                 /*
1446                  * The response IOCB has been processed.  Update the ring
1447                  * pointer in SLIM.  If the port response put pointer has not
1448                  * been updated, sync the pgp->rspPutInx and fetch the new port
1449                  * response put pointer.
1450                  */
1451                 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
1452
1453                 if (pring->rspidx == portRspPut)
1454                         portRspPut = le32_to_cpu(pgp->rspPutInx);
1455         }
1456
1457         if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
1458                 pring->stats.iocb_rsp_full++;
1459                 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
1460                 writel(status, phba->CAregaddr);
1461                 readl(phba->CAregaddr);
1462         }
1463         if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
1464                 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
1465                 pring->stats.iocb_cmd_empty++;
1466
1467                 /* Force update of the local copy of cmdGetInx */
1468                 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1469                 lpfc_sli_resume_iocb(phba, pring);
1470
1471                 if ((pring->lpfc_sli_cmd_available))
1472                         (pring->lpfc_sli_cmd_available) (phba, pring);
1473
1474         }
1475
1476         spin_unlock_irqrestore(&phba->hbalock, iflag);
1477         return rc;
1478 }
1479
1480 int
1481 lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
1482                                 struct lpfc_sli_ring *pring, uint32_t mask)
1483 {
1484         struct lpfc_pgp *pgp = (phba->sli_rev == 3) ?
1485                 &phba->slim2p->mbx.us.s3_pgp.port[pring->ringno] :
1486                 &phba->slim2p->mbx.us.s2.port[pring->ringno];
1487         IOCB_t *entry;
1488         IOCB_t *irsp = NULL;
1489         struct lpfc_iocbq *rspiocbp = NULL;
1490         struct lpfc_iocbq *next_iocb;
1491         struct lpfc_iocbq *cmdiocbp;
1492         struct lpfc_iocbq *saveq;
1493         uint8_t iocb_cmd_type;
1494         lpfc_iocb_type type;
1495         uint32_t status, free_saveq;
1496         uint32_t portRspPut, portRspMax;
1497         int rc = 1;
1498         unsigned long iflag;
1499
1500         spin_lock_irqsave(&phba->hbalock, iflag);
1501         pring->stats.iocb_event++;
1502
1503         /*
1504          * The next available response entry should never exceed the maximum
1505          * entries.  If it does, treat it as an adapter hardware error.
1506          */
1507         portRspMax = pring->numRiocb;
1508         portRspPut = le32_to_cpu(pgp->rspPutInx);
1509         if (portRspPut >= portRspMax) {
1510                 /*
1511                  * Ring <ringno> handler: portRspPut <portRspPut> is bigger then
1512                  * rsp ring <portRspMax>
1513                  */
1514                 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1515                                 "0303 Ring %d handler: portRspPut %d "
1516                                 "is bigger then rsp ring %d\n",
1517                                 pring->ringno, portRspPut, portRspMax);
1518
1519                 phba->link_state = LPFC_HBA_ERROR;
1520                 spin_unlock_irqrestore(&phba->hbalock, iflag);
1521
1522                 phba->work_hs = HS_FFER3;
1523                 lpfc_handle_eratt(phba);
1524
1525                 return 1;
1526         }
1527
1528         rmb();
1529         while (pring->rspidx != portRspPut) {
1530                 /*
1531                  * Build a completion list and call the appropriate handler.
1532                  * The process is to get the next available response iocb, get
1533                  * a free iocb from the list, copy the response data into the
1534                  * free iocb, insert to the continuation list, and update the
1535                  * next response index to slim.  This process makes response
1536                  * iocb's in the ring available to DMA as fast as possible but
1537                  * pays a penalty for a copy operation.  Since the iocb is
1538                  * only 32 bytes, this penalty is considered small relative to
1539                  * the PCI reads for register values and a slim write.  When
1540                  * the ulpLe field is set, the entire Command has been
1541                  * received.
1542                  */
1543                 entry = lpfc_resp_iocb(phba, pring);
1544
1545                 phba->last_completion_time = jiffies;
1546                 rspiocbp = __lpfc_sli_get_iocbq(phba);
1547                 if (rspiocbp == NULL) {
1548                         printk(KERN_ERR "%s: out of buffers! Failing "
1549                                "completion.\n", __FUNCTION__);
1550                         break;
1551                 }
1552
1553                 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
1554                                       phba->iocb_rsp_size);
1555                 irsp = &rspiocbp->iocb;
1556
1557                 if (++pring->rspidx >= portRspMax)
1558                         pring->rspidx = 0;
1559
1560                 if (pring->ringno == LPFC_ELS_RING) {
1561                         lpfc_debugfs_slow_ring_trc(phba,
1562                         "IOCB rsp ring:   wd4:x%08x wd6:x%08x wd7:x%08x",
1563                                 *(((uint32_t *) irsp) + 4),
1564                                 *(((uint32_t *) irsp) + 6),
1565                                 *(((uint32_t *) irsp) + 7));
1566                 }
1567
1568                 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
1569
1570                 if (list_empty(&(pring->iocb_continueq))) {
1571                         list_add(&rspiocbp->list, &(pring->iocb_continueq));
1572                 } else {
1573                         list_add_tail(&rspiocbp->list,
1574                                       &(pring->iocb_continueq));
1575                 }
1576
1577                 pring->iocb_continueq_cnt++;
1578                 if (irsp->ulpLe) {
1579                         /*
1580                          * By default, the driver expects to free all resources
1581                          * associated with this iocb completion.
1582                          */
1583                         free_saveq = 1;
1584                         saveq = list_get_first(&pring->iocb_continueq,
1585                                                struct lpfc_iocbq, list);
1586                         irsp = &(saveq->iocb);
1587                         list_del_init(&pring->iocb_continueq);
1588                         pring->iocb_continueq_cnt = 0;
1589
1590                         pring->stats.iocb_rsp++;
1591
1592                         /*
1593                          * If resource errors reported from HBA, reduce
1594                          * queuedepths of the SCSI device.
1595                          */
1596                         if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
1597                              (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
1598                                 spin_unlock_irqrestore(&phba->hbalock, iflag);
1599                                 lpfc_adjust_queue_depth(phba);
1600                                 spin_lock_irqsave(&phba->hbalock, iflag);
1601                         }
1602
1603                         if (irsp->ulpStatus) {
1604                                 /* Rsp ring <ringno> error: IOCB */
1605                                 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
1606                                                 "0328 Rsp Ring %d error: "
1607                                                 "IOCB Data: "
1608                                                 "x%x x%x x%x x%x "
1609                                                 "x%x x%x x%x x%x "
1610                                                 "x%x x%x x%x x%x "
1611                                                 "x%x x%x x%x x%x\n",
1612                                                 pring->ringno,
1613                                                 irsp->un.ulpWord[0],
1614                                                 irsp->un.ulpWord[1],
1615                                                 irsp->un.ulpWord[2],
1616                                                 irsp->un.ulpWord[3],
1617                                                 irsp->un.ulpWord[4],
1618                                                 irsp->un.ulpWord[5],
1619                                                 *(((uint32_t *) irsp) + 6),
1620                                                 *(((uint32_t *) irsp) + 7),
1621                                                 *(((uint32_t *) irsp) + 8),
1622                                                 *(((uint32_t *) irsp) + 9),
1623                                                 *(((uint32_t *) irsp) + 10),
1624                                                 *(((uint32_t *) irsp) + 11),
1625                                                 *(((uint32_t *) irsp) + 12),
1626                                                 *(((uint32_t *) irsp) + 13),
1627                                                 *(((uint32_t *) irsp) + 14),
1628                                                 *(((uint32_t *) irsp) + 15));
1629                         }
1630
1631                         /*
1632                          * Fetch the IOCB command type and call the correct
1633                          * completion routine.  Solicited and Unsolicited
1634                          * IOCBs on the ELS ring get freed back to the
1635                          * lpfc_iocb_list by the discovery kernel thread.
1636                          */
1637                         iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
1638                         type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
1639                         if (type == LPFC_SOL_IOCB) {
1640                                 spin_unlock_irqrestore(&phba->hbalock,
1641                                                        iflag);
1642                                 rc = lpfc_sli_process_sol_iocb(phba, pring,
1643                                                                saveq);
1644                                 spin_lock_irqsave(&phba->hbalock, iflag);
1645                         } else if (type == LPFC_UNSOL_IOCB) {
1646                                 spin_unlock_irqrestore(&phba->hbalock,
1647                                                        iflag);
1648                                 rc = lpfc_sli_process_unsol_iocb(phba, pring,
1649                                                                  saveq);
1650                                 spin_lock_irqsave(&phba->hbalock, iflag);
1651                         } else if (type == LPFC_ABORT_IOCB) {
1652                                 if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
1653                                     ((cmdiocbp =
1654                                       lpfc_sli_iocbq_lookup(phba, pring,
1655                                                             saveq)))) {
1656                                         /* Call the specified completion
1657                                            routine */
1658                                         if (cmdiocbp->iocb_cmpl) {
1659                                                 spin_unlock_irqrestore(
1660                                                        &phba->hbalock,
1661                                                        iflag);
1662                                                 (cmdiocbp->iocb_cmpl) (phba,
1663                                                              cmdiocbp, saveq);
1664                                                 spin_lock_irqsave(
1665                                                           &phba->hbalock,
1666                                                           iflag);
1667                                         } else
1668                                                 __lpfc_sli_release_iocbq(phba,
1669                                                                       cmdiocbp);
1670                                 }
1671                         } else if (type == LPFC_UNKNOWN_IOCB) {
1672                                 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
1673
1674                                         char adaptermsg[LPFC_MAX_ADPTMSG];
1675
1676                                         memset(adaptermsg, 0,
1677                                                LPFC_MAX_ADPTMSG);
1678                                         memcpy(&adaptermsg[0], (uint8_t *) irsp,
1679                                                MAX_MSG_DATA);
1680                                         dev_warn(&((phba->pcidev)->dev),
1681                                                  "lpfc%d: %s\n",
1682                                                  phba->brd_no, adaptermsg);
1683                                 } else {
1684                                         /* Unknown IOCB command */
1685                                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
1686                                                         "0335 Unknown IOCB "
1687                                                         "command Data: x%x "
1688                                                         "x%x x%x x%x\n",
1689                                                         irsp->ulpCommand,
1690                                                         irsp->ulpStatus,
1691                                                         irsp->ulpIoTag,
1692                                                         irsp->ulpContext);
1693                                 }
1694                         }
1695
1696                         if (free_saveq) {
1697                                 list_for_each_entry_safe(rspiocbp, next_iocb,
1698                                                          &saveq->list, list) {
1699                                         list_del(&rspiocbp->list);
1700                                         __lpfc_sli_release_iocbq(phba,
1701                                                                  rspiocbp);
1702                                 }
1703                                 __lpfc_sli_release_iocbq(phba, saveq);
1704                         }
1705                         rspiocbp = NULL;
1706                 }
1707
1708                 /*
1709                  * If the port response put pointer has not been updated, sync
1710                  * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
1711                  * response put pointer.
1712                  */
1713                 if (pring->rspidx == portRspPut) {
1714                         portRspPut = le32_to_cpu(pgp->rspPutInx);
1715                 }
1716         } /* while (pring->rspidx != portRspPut) */
1717
1718         if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
1719                 /* At least one response entry has been freed */
1720                 pring->stats.iocb_rsp_full++;
1721                 /* SET RxRE_RSP in Chip Att register */
1722                 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
1723                 writel(status, phba->CAregaddr);
1724                 readl(phba->CAregaddr); /* flush */
1725         }
1726         if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
1727                 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
1728                 pring->stats.iocb_cmd_empty++;
1729
1730                 /* Force update of the local copy of cmdGetInx */
1731                 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1732                 lpfc_sli_resume_iocb(phba, pring);
1733
1734                 if ((pring->lpfc_sli_cmd_available))
1735                         (pring->lpfc_sli_cmd_available) (phba, pring);
1736
1737         }
1738
1739         spin_unlock_irqrestore(&phba->hbalock, iflag);
1740         return rc;
1741 }
1742
1743 void
1744 lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1745 {
1746         LIST_HEAD(completions);
1747         struct lpfc_iocbq *iocb, *next_iocb;
1748         IOCB_t *cmd = NULL;
1749
1750         if (pring->ringno == LPFC_ELS_RING) {
1751                 lpfc_fabric_abort_hba(phba);
1752         }
1753
1754         /* Error everything on txq and txcmplq
1755          * First do the txq.
1756          */
1757         spin_lock_irq(&phba->hbalock);
1758         list_splice_init(&pring->txq, &completions);
1759         pring->txq_cnt = 0;
1760
1761         /* Next issue ABTS for everything on the txcmplq */
1762         list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
1763                 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
1764
1765         spin_unlock_irq(&phba->hbalock);
1766
1767         while (!list_empty(&completions)) {
1768                 iocb = list_get_first(&completions, struct lpfc_iocbq, list);
1769                 cmd = &iocb->iocb;
1770                 list_del_init(&iocb->list);
1771
1772                 if (!iocb->iocb_cmpl)
1773                         lpfc_sli_release_iocbq(phba, iocb);
1774                 else {
1775                         cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
1776                         cmd->un.ulpWord[4] = IOERR_SLI_ABORTED;
1777                         (iocb->iocb_cmpl) (phba, iocb, iocb);
1778                 }
1779         }
1780 }
1781
1782 int
1783 lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
1784 {
1785         uint32_t status;
1786         int i = 0;
1787         int retval = 0;
1788
1789         /* Read the HBA Host Status Register */
1790         status = readl(phba->HSregaddr);
1791
1792         /*
1793          * Check status register every 100ms for 5 retries, then every
1794          * 500ms for 5, then every 2.5 sec for 5, then reset board and
1795          * every 2.5 sec for 4.
1796          * Break our of the loop if errors occurred during init.
1797          */
1798         while (((status & mask) != mask) &&
1799                !(status & HS_FFERM) &&
1800                i++ < 20) {
1801
1802                 if (i <= 5)
1803                         msleep(10);
1804                 else if (i <= 10)
1805                         msleep(500);
1806                 else
1807                         msleep(2500);
1808
1809                 if (i == 15) {
1810                                 /* Do post */
1811                         phba->pport->port_state = LPFC_VPORT_UNKNOWN;
1812                         lpfc_sli_brdrestart(phba);
1813                 }
1814                 /* Read the HBA Host Status Register */
1815                 status = readl(phba->HSregaddr);
1816         }
1817
1818         /* Check to see if any errors occurred during init */
1819         if ((status & HS_FFERM) || (i >= 20)) {
1820                 phba->link_state = LPFC_HBA_ERROR;
1821                 retval = 1;
1822         }
1823
1824         return retval;
1825 }
1826
1827 #define BARRIER_TEST_PATTERN (0xdeadbeef)
1828
1829 void lpfc_reset_barrier(struct lpfc_hba *phba)
1830 {
1831         uint32_t __iomem *resp_buf;
1832         uint32_t __iomem *mbox_buf;
1833         volatile uint32_t mbox;
1834         uint32_t hc_copy;
1835         int  i;
1836         uint8_t hdrtype;
1837
1838         pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
1839         if (hdrtype != 0x80 ||
1840             (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
1841              FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
1842                 return;
1843
1844         /*
1845          * Tell the other part of the chip to suspend temporarily all
1846          * its DMA activity.
1847          */
1848         resp_buf = phba->MBslimaddr;
1849
1850         /* Disable the error attention */
1851         hc_copy = readl(phba->HCregaddr);
1852         writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
1853         readl(phba->HCregaddr); /* flush */
1854         phba->link_flag |= LS_IGNORE_ERATT;
1855
1856         if (readl(phba->HAregaddr) & HA_ERATT) {
1857                 /* Clear Chip error bit */
1858                 writel(HA_ERATT, phba->HAregaddr);
1859                 phba->pport->stopped = 1;
1860         }
1861
1862         mbox = 0;
1863         ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
1864         ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
1865
1866         writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
1867         mbox_buf = phba->MBslimaddr;
1868         writel(mbox, mbox_buf);
1869
1870         for (i = 0;
1871              readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
1872                 mdelay(1);
1873
1874         if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
1875                 if (phba->sli.sli_flag & LPFC_SLI2_ACTIVE ||
1876                     phba->pport->stopped)
1877                         goto restore_hc;
1878                 else
1879                         goto clear_errat;
1880         }
1881
1882         ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
1883         for (i = 0; readl(resp_buf) != mbox &&  i < 500; i++)
1884                 mdelay(1);
1885
1886 clear_errat:
1887
1888         while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
1889                 mdelay(1);
1890
1891         if (readl(phba->HAregaddr) & HA_ERATT) {
1892                 writel(HA_ERATT, phba->HAregaddr);
1893                 phba->pport->stopped = 1;
1894         }
1895
1896 restore_hc:
1897         phba->link_flag &= ~LS_IGNORE_ERATT;
1898         writel(hc_copy, phba->HCregaddr);
1899         readl(phba->HCregaddr); /* flush */
1900 }
1901
1902 int
1903 lpfc_sli_brdkill(struct lpfc_hba *phba)
1904 {
1905         struct lpfc_sli *psli;
1906         LPFC_MBOXQ_t *pmb;
1907         uint32_t status;
1908         uint32_t ha_copy;
1909         int retval;
1910         int i = 0;
1911
1912         psli = &phba->sli;
1913
1914         /* Kill HBA */
1915         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1916                         "0329 Kill HBA Data: x%x x%x\n",
1917                         phba->pport->port_state, psli->sli_flag);
1918
1919         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1920         if (!pmb)
1921                 return 1;
1922
1923         /* Disable the error attention */
1924         spin_lock_irq(&phba->hbalock);
1925         status = readl(phba->HCregaddr);
1926         status &= ~HC_ERINT_ENA;
1927         writel(status, phba->HCregaddr);
1928         readl(phba->HCregaddr); /* flush */
1929         phba->link_flag |= LS_IGNORE_ERATT;
1930         spin_unlock_irq(&phba->hbalock);
1931
1932         lpfc_kill_board(phba, pmb);
1933         pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1934         retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1935
1936         if (retval != MBX_SUCCESS) {
1937                 if (retval != MBX_BUSY)
1938                         mempool_free(pmb, phba->mbox_mem_pool);
1939                 spin_lock_irq(&phba->hbalock);
1940                 phba->link_flag &= ~LS_IGNORE_ERATT;
1941                 spin_unlock_irq(&phba->hbalock);
1942                 return 1;
1943         }
1944
1945         psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
1946
1947         mempool_free(pmb, phba->mbox_mem_pool);
1948
1949         /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
1950          * attention every 100ms for 3 seconds. If we don't get ERATT after
1951          * 3 seconds we still set HBA_ERROR state because the status of the
1952          * board is now undefined.
1953          */
1954         ha_copy = readl(phba->HAregaddr);
1955
1956         while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
1957                 mdelay(100);
1958                 ha_copy = readl(phba->HAregaddr);
1959         }
1960
1961         del_timer_sync(&psli->mbox_tmo);
1962         if (ha_copy & HA_ERATT) {
1963                 writel(HA_ERATT, phba->HAregaddr);
1964                 phba->pport->stopped = 1;
1965         }
1966         spin_lock_irq(&phba->hbalock);
1967         psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
1968         phba->link_flag &= ~LS_IGNORE_ERATT;
1969         spin_unlock_irq(&phba->hbalock);
1970
1971         psli->mbox_active = NULL;
1972         lpfc_hba_down_post(phba);
1973         phba->link_state = LPFC_HBA_ERROR;
1974
1975         return ha_copy & HA_ERATT ? 0 : 1;
1976 }
1977
1978 int
1979 lpfc_sli_brdreset(struct lpfc_hba *phba)
1980 {
1981         struct lpfc_sli *psli;
1982         struct lpfc_sli_ring *pring;
1983         uint16_t cfg_value;
1984         int i;
1985
1986         psli = &phba->sli;
1987
1988         /* Reset HBA */
1989         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
1990                         "0325 Reset HBA Data: x%x x%x\n",
1991                         phba->pport->port_state, psli->sli_flag);
1992
1993         /* perform board reset */
1994         phba->fc_eventTag = 0;
1995         phba->pport->fc_myDID = 0;
1996         phba->pport->fc_prevDID = 0;
1997
1998         /* Turn off parity checking and serr during the physical reset */
1999         pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
2000         pci_write_config_word(phba->pcidev, PCI_COMMAND,
2001                               (cfg_value &
2002                                ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
2003
2004         psli->sli_flag &= ~(LPFC_SLI2_ACTIVE | LPFC_PROCESS_LA);
2005         /* Now toggle INITFF bit in the Host Control Register */
2006         writel(HC_INITFF, phba->HCregaddr);
2007         mdelay(1);
2008         readl(phba->HCregaddr); /* flush */
2009         writel(0, phba->HCregaddr);
2010         readl(phba->HCregaddr); /* flush */
2011
2012         /* Restore PCI cmd register */
2013         pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
2014
2015         /* Initialize relevant SLI info */
2016         for (i = 0; i < psli->num_rings; i++) {
2017                 pring = &psli->ring[i];
2018                 pring->flag = 0;
2019                 pring->rspidx = 0;
2020                 pring->next_cmdidx  = 0;
2021                 pring->local_getidx = 0;
2022                 pring->cmdidx = 0;
2023                 pring->missbufcnt = 0;
2024         }
2025
2026         phba->link_state = LPFC_WARM_START;
2027         return 0;
2028 }
2029
2030 int
2031 lpfc_sli_brdrestart(struct lpfc_hba *phba)
2032 {
2033         MAILBOX_t *mb;
2034         struct lpfc_sli *psli;
2035         uint16_t skip_post;
2036         volatile uint32_t word0;
2037         void __iomem *to_slim;
2038
2039         spin_lock_irq(&phba->hbalock);
2040
2041         psli = &phba->sli;
2042
2043         /* Restart HBA */
2044         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
2045                         "0337 Restart HBA Data: x%x x%x\n",
2046                         phba->pport->port_state, psli->sli_flag);
2047
2048         word0 = 0;
2049         mb = (MAILBOX_t *) &word0;
2050         mb->mbxCommand = MBX_RESTART;
2051         mb->mbxHc = 1;
2052
2053         lpfc_reset_barrier(phba);
2054
2055         to_slim = phba->MBslimaddr;
2056         writel(*(uint32_t *) mb, to_slim);
2057         readl(to_slim); /* flush */
2058
2059         /* Only skip post after fc_ffinit is completed */
2060         if (phba->pport->port_state) {
2061                 skip_post = 1;
2062                 word0 = 1;      /* This is really setting up word1 */
2063         } else {
2064                 skip_post = 0;
2065                 word0 = 0;      /* This is really setting up word1 */
2066         }
2067         to_slim = phba->MBslimaddr + sizeof (uint32_t);
2068         writel(*(uint32_t *) mb, to_slim);
2069         readl(to_slim); /* flush */
2070
2071         lpfc_sli_brdreset(phba);
2072         phba->pport->stopped = 0;
2073         phba->link_state = LPFC_INIT_START;
2074
2075         spin_unlock_irq(&phba->hbalock);
2076
2077         memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
2078         psli->stats_start = get_seconds();
2079
2080         if (skip_post)
2081                 mdelay(100);
2082         else
2083                 mdelay(2000);
2084
2085         lpfc_hba_down_post(phba);
2086
2087         return 0;
2088 }
2089
2090 static int
2091 lpfc_sli_chipset_init(struct lpfc_hba *phba)
2092 {
2093         uint32_t status, i = 0;
2094
2095         /* Read the HBA Host Status Register */
2096         status = readl(phba->HSregaddr);
2097
2098         /* Check status register to see what current state is */
2099         i = 0;
2100         while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
2101
2102                 /* Check every 100ms for 5 retries, then every 500ms for 5, then
2103                  * every 2.5 sec for 5, then reset board and every 2.5 sec for
2104                  * 4.
2105                  */
2106                 if (i++ >= 20) {
2107                         /* Adapter failed to init, timeout, status reg
2108                            <status> */
2109                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2110                                         "0436 Adapter failed to init, "
2111                                         "timeout, status reg x%x\n", status);
2112                         phba->link_state = LPFC_HBA_ERROR;
2113                         return -ETIMEDOUT;
2114                 }
2115
2116                 /* Check to see if any errors occurred during init */
2117                 if (status & HS_FFERM) {
2118                         /* ERROR: During chipset initialization */
2119                         /* Adapter failed to init, chipset, status reg
2120                            <status> */
2121                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2122                                         "0437 Adapter failed to init, "
2123                                         "chipset, status reg x%x\n", status);
2124                         phba->link_state = LPFC_HBA_ERROR;
2125                         return -EIO;
2126                 }
2127
2128                 if (i <= 5) {
2129                         msleep(10);
2130                 } else if (i <= 10) {
2131                         msleep(500);
2132                 } else {
2133                         msleep(2500);
2134                 }
2135
2136                 if (i == 15) {
2137                                 /* Do post */
2138                         phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2139                         lpfc_sli_brdrestart(phba);
2140                 }
2141                 /* Read the HBA Host Status Register */
2142                 status = readl(phba->HSregaddr);
2143         }
2144
2145         /* Check to see if any errors occurred during init */
2146         if (status & HS_FFERM) {
2147                 /* ERROR: During chipset initialization */
2148                 /* Adapter failed to init, chipset, status reg <status> */
2149                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2150                                 "0438 Adapter failed to init, chipset, "
2151                                 "status reg x%x\n", status);
2152                 phba->link_state = LPFC_HBA_ERROR;
2153                 return -EIO;
2154         }
2155
2156         /* Clear all interrupt enable conditions */
2157         writel(0, phba->HCregaddr);
2158         readl(phba->HCregaddr); /* flush */
2159
2160         /* setup host attn register */
2161         writel(0xffffffff, phba->HAregaddr);
2162         readl(phba->HAregaddr); /* flush */
2163         return 0;
2164 }
2165
2166 int
2167 lpfc_sli_hbq_count(void)
2168 {
2169         return ARRAY_SIZE(lpfc_hbq_defs);
2170 }
2171
2172 static int
2173 lpfc_sli_hbq_entry_count(void)
2174 {
2175         int  hbq_count = lpfc_sli_hbq_count();
2176         int  count = 0;
2177         int  i;
2178
2179         for (i = 0; i < hbq_count; ++i)
2180                 count += lpfc_hbq_defs[i]->entry_count;
2181         return count;
2182 }
2183
2184 int
2185 lpfc_sli_hbq_size(void)
2186 {
2187         return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
2188 }
2189
2190 static int
2191 lpfc_sli_hbq_setup(struct lpfc_hba *phba)
2192 {
2193         int  hbq_count = lpfc_sli_hbq_count();
2194         LPFC_MBOXQ_t *pmb;
2195         MAILBOX_t *pmbox;
2196         uint32_t hbqno;
2197         uint32_t hbq_entry_index;
2198
2199                                 /* Get a Mailbox buffer to setup mailbox
2200                                  * commands for HBA initialization
2201                                  */
2202         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2203
2204         if (!pmb)
2205                 return -ENOMEM;
2206
2207         pmbox = &pmb->mb;
2208
2209         /* Initialize the struct lpfc_sli_hbq structure for each hbq */
2210         phba->link_state = LPFC_INIT_MBX_CMDS;
2211
2212         hbq_entry_index = 0;
2213         for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
2214                 phba->hbqs[hbqno].next_hbqPutIdx = 0;
2215                 phba->hbqs[hbqno].hbqPutIdx      = 0;
2216                 phba->hbqs[hbqno].local_hbqGetIdx   = 0;
2217                 phba->hbqs[hbqno].entry_count =
2218                         lpfc_hbq_defs[hbqno]->entry_count;
2219                 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
2220                         hbq_entry_index, pmb);
2221                 hbq_entry_index += phba->hbqs[hbqno].entry_count;
2222
2223                 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
2224                         /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
2225                            mbxStatus <status>, ring <num> */
2226
2227                         lpfc_printf_log(phba, KERN_ERR,
2228                                         LOG_SLI | LOG_VPORT,
2229                                         "1805 Adapter failed to init. "
2230                                         "Data: x%x x%x x%x\n",
2231                                         pmbox->mbxCommand,
2232                                         pmbox->mbxStatus, hbqno);
2233
2234                         phba->link_state = LPFC_HBA_ERROR;
2235                         mempool_free(pmb, phba->mbox_mem_pool);
2236                         return ENXIO;
2237                 }
2238         }
2239         phba->hbq_count = hbq_count;
2240
2241         mempool_free(pmb, phba->mbox_mem_pool);
2242
2243         /* Initially populate or replenish the HBQs */
2244         for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
2245                 if (lpfc_sli_hbqbuf_init_hbqs(phba, hbqno))
2246                         return -ENOMEM;
2247         }
2248         return 0;
2249 }
2250
2251 static int
2252 lpfc_do_config_port(struct lpfc_hba *phba, int sli_mode)
2253 {
2254         LPFC_MBOXQ_t *pmb;
2255         uint32_t resetcount = 0, rc = 0, done = 0;
2256
2257         pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
2258         if (!pmb) {
2259                 phba->link_state = LPFC_HBA_ERROR;
2260                 return -ENOMEM;
2261         }
2262
2263         phba->sli_rev = sli_mode;
2264         while (resetcount < 2 && !done) {
2265                 spin_lock_irq(&phba->hbalock);
2266                 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
2267                 spin_unlock_irq(&phba->hbalock);
2268                 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
2269                 lpfc_sli_brdrestart(phba);
2270                 msleep(2500);
2271                 rc = lpfc_sli_chipset_init(phba);
2272                 if (rc)
2273                         break;
2274
2275                 spin_lock_irq(&phba->hbalock);
2276                 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2277                 spin_unlock_irq(&phba->hbalock);
2278                 resetcount++;
2279
2280                 /* Call pre CONFIG_PORT mailbox command initialization.  A
2281                  * value of 0 means the call was successful.  Any other
2282                  * nonzero value is a failure, but if ERESTART is returned,
2283                  * the driver may reset the HBA and try again.
2284                  */
2285                 rc = lpfc_config_port_prep(phba);
2286                 if (rc == -ERESTART) {
2287                         phba->link_state = LPFC_LINK_UNKNOWN;
2288                         continue;
2289                 } else if (rc) {
2290                         break;
2291                 }
2292
2293                 phba->link_state = LPFC_INIT_MBX_CMDS;
2294                 lpfc_config_port(phba, pmb);
2295                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
2296                 if (rc != MBX_SUCCESS) {
2297                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
2298                                 "0442 Adapter failed to init, mbxCmd x%x "
2299                                 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
2300                                 pmb->mb.mbxCommand, pmb->mb.mbxStatus, 0);
2301                         spin_lock_irq(&phba->hbalock);
2302                         phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE;
2303                         spin_unlock_irq(&phba->hbalock);
2304                         rc = -ENXIO;
2305                 } else {
2306                         done = 1;
2307                         phba->max_vpi = (phba->max_vpi &&
2308                                          pmb->mb.un.varCfgPort.gmv) != 0
2309                                 ? pmb->mb.un.varCfgPort.max_vpi
2310                                 : 0;
2311                 }
2312         }
2313
2314         if (!done) {
2315                 rc = -EINVAL;
2316                 goto do_prep_failed;
2317         }
2318
2319         if ((pmb->mb.un.varCfgPort.sli_mode == 3) &&
2320                 (!pmb->mb.un.varCfgPort.cMA)) {
2321                 rc = -ENXIO;
2322                 goto do_prep_failed;
2323         }
2324         return rc;
2325
2326 do_prep_failed:
2327         mempool_free(pmb, phba->mbox_mem_pool);
2328         return rc;
2329 }
2330
2331 int
2332 lpfc_sli_hba_setup(struct lpfc_hba *phba)
2333 {
2334         uint32_t rc;
2335         int  mode = 3;
2336
2337         switch (lpfc_sli_mode) {
2338         case 2:
2339                 if (phba->cfg_enable_npiv) {
2340                         lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
2341                                 "1824 NPIV enabled: Override lpfc_sli_mode "
2342                                 "parameter (%d) to auto (0).\n",
2343                                 lpfc_sli_mode);
2344                         break;
2345                 }
2346                 mode = 2;
2347                 break;
2348         case 0:
2349         case 3:
2350                 break;
2351         default:
2352                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
2353                                 "1819 Unrecognized lpfc_sli_mode "
2354                                 "parameter: %d.\n", lpfc_sli_mode);
2355
2356                 break;
2357         }
2358
2359         rc = lpfc_do_config_port(phba, mode);
2360         if (rc && lpfc_sli_mode == 3)
2361                 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
2362                                 "1820 Unable to select SLI-3.  "
2363                                 "Not supported by adapter.\n");
2364         if (rc && mode != 2)
2365                 rc = lpfc_do_config_port(phba, 2);
2366         if (rc)
2367                 goto lpfc_sli_hba_setup_error;
2368
2369         if (phba->sli_rev == 3) {
2370                 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
2371                 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
2372                 phba->sli3_options |= LPFC_SLI3_ENABLED;
2373                 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
2374
2375         } else {
2376                 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
2377                 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
2378                 phba->sli3_options = 0;
2379         }
2380
2381         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2382                         "0444 Firmware in SLI %x mode. Max_vpi %d\n",
2383                         phba->sli_rev, phba->max_vpi);
2384         rc = lpfc_sli_ring_map(phba);
2385
2386         if (rc)
2387                 goto lpfc_sli_hba_setup_error;
2388
2389                                 /* Init HBQs */
2390
2391         if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
2392                 rc = lpfc_sli_hbq_setup(phba);
2393                 if (rc)
2394                         goto lpfc_sli_hba_setup_error;
2395         }
2396
2397         phba->sli.sli_flag |= LPFC_PROCESS_LA;
2398
2399         rc = lpfc_config_port_post(phba);
2400         if (rc)
2401                 goto lpfc_sli_hba_setup_error;
2402
2403         return rc;
2404
2405 lpfc_sli_hba_setup_error:
2406         phba->link_state = LPFC_HBA_ERROR;
2407         lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
2408                         "0445 Firmware initialization failed\n");
2409         return rc;
2410 }
2411
2412 /*! lpfc_mbox_timeout
2413  *
2414  * \pre
2415  * \post
2416  * \param hba Pointer to per struct lpfc_hba structure
2417  * \param l1  Pointer to the driver's mailbox queue.
2418  * \return
2419  *   void
2420  *
2421  * \b Description:
2422  *
2423  * This routine handles mailbox timeout events at timer interrupt context.
2424  */
2425 void
2426 lpfc_mbox_timeout(unsigned long ptr)
2427 {
2428         struct lpfc_hba  *phba = (struct lpfc_hba *) ptr;
2429         unsigned long iflag;
2430         uint32_t tmo_posted;
2431
2432         spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
2433         tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
2434         if (!tmo_posted)
2435                 phba->pport->work_port_events |= WORKER_MBOX_TMO;
2436         spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
2437
2438         if (!tmo_posted) {
2439                 spin_lock_irqsave(&phba->hbalock, iflag);
2440                 if (phba->work_wait)
2441                         lpfc_worker_wake_up(phba);
2442                 spin_unlock_irqrestore(&phba->hbalock, iflag);
2443         }
2444 }
2445
2446 void
2447 lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
2448 {
2449         LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
2450         MAILBOX_t *mb = &pmbox->mb;
2451         struct lpfc_sli *psli = &phba->sli;
2452         struct lpfc_sli_ring *pring;
2453
2454         if (!(phba->pport->work_port_events & WORKER_MBOX_TMO)) {
2455                 return;
2456         }
2457
2458         /* Mbox cmd <mbxCommand> timeout */
2459         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2460                         "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
2461                         mb->mbxCommand,
2462                         phba->pport->port_state,
2463                         phba->sli.sli_flag,
2464                         phba->sli.mbox_active);
2465
2466         /* Setting state unknown so lpfc_sli_abort_iocb_ring
2467          * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
2468          * it to fail all oustanding SCSI IO.
2469          */
2470         spin_lock_irq(&phba->pport->work_port_lock);
2471         phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
2472         spin_unlock_irq(&phba->pport->work_port_lock);
2473         spin_lock_irq(&phba->hbalock);
2474         phba->link_state = LPFC_LINK_UNKNOWN;
2475         phba->pport->fc_flag |= FC_ESTABLISH_LINK;
2476         psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
2477         spin_unlock_irq(&phba->hbalock);
2478
2479         pring = &psli->ring[psli->fcp_ring];
2480         lpfc_sli_abort_iocb_ring(phba, pring);
2481
2482         lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2483                         "0316 Resetting board due to mailbox timeout\n");
2484         /*
2485          * lpfc_offline calls lpfc_sli_hba_down which will clean up
2486          * on oustanding mailbox commands.
2487          */
2488         lpfc_offline_prep(phba);
2489         lpfc_offline(phba);
2490         lpfc_sli_brdrestart(phba);
2491         if (lpfc_online(phba) == 0)             /* Initialize the HBA */
2492                 mod_timer(&phba->fc_estabtmo, jiffies + HZ * 60);
2493         lpfc_unblock_mgmt_io(phba);
2494         return;
2495 }
2496
2497 int
2498 lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
2499 {
2500         MAILBOX_t *mb;
2501         struct lpfc_sli *psli = &phba->sli;
2502         uint32_t status, evtctr;
2503         uint32_t ha_copy;
2504         int i;
2505         unsigned long drvr_flag = 0;
2506         volatile uint32_t word0, ldata;
2507         void __iomem *to_slim;
2508
2509         if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
2510                 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
2511                 if(!pmbox->vport) {
2512                         lpfc_printf_log(phba, KERN_ERR,
2513                                         LOG_MBOX | LOG_VPORT,
2514                                         "1806 Mbox x%x failed. No vport\n",
2515                                         pmbox->mb.mbxCommand);
2516                         dump_stack();
2517                         return MBXERR_ERROR;
2518                 }
2519         }
2520
2521
2522         /* If the PCI channel is in offline state, do not post mbox. */
2523         if (unlikely(pci_channel_offline(phba->pcidev)))
2524                 return MBX_NOT_FINISHED;
2525
2526         spin_lock_irqsave(&phba->hbalock, drvr_flag);
2527         psli = &phba->sli;
2528
2529
2530         mb = &pmbox->mb;
2531         status = MBX_SUCCESS;
2532
2533         if (phba->link_state == LPFC_HBA_ERROR) {
2534                 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2535
2536                 /* Mbox command <mbxCommand> cannot issue */
2537                 LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag)
2538                 return MBX_NOT_FINISHED;
2539         }
2540
2541         if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
2542             !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
2543                 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2544                 LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag)
2545                 return MBX_NOT_FINISHED;
2546         }
2547
2548         if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
2549                 /* Polling for a mbox command when another one is already active
2550                  * is not allowed in SLI. Also, the driver must have established
2551                  * SLI2 mode to queue and process multiple mbox commands.
2552                  */
2553
2554                 if (flag & MBX_POLL) {
2555                         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2556
2557                         /* Mbox command <mbxCommand> cannot issue */
2558                         LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
2559                         return MBX_NOT_FINISHED;
2560                 }
2561
2562                 if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) {
2563                         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2564                         /* Mbox command <mbxCommand> cannot issue */
2565                         LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
2566                         return MBX_NOT_FINISHED;
2567                 }
2568
2569                 /* Another mailbox command is still being processed, queue this
2570                  * command to be processed later.
2571                  */
2572                 lpfc_mbox_put(phba, pmbox);
2573
2574                 /* Mbox cmd issue - BUSY */
2575                 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2576                                 "(%d):0308 Mbox cmd issue - BUSY Data: "
2577                                 "x%x x%x x%x x%x\n",
2578                                 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
2579                                 mb->mbxCommand, phba->pport->port_state,
2580                                 psli->sli_flag, flag);
2581
2582                 psli->slistat.mbox_busy++;
2583                 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2584
2585                 if (pmbox->vport) {
2586                         lpfc_debugfs_disc_trc(pmbox->vport,
2587                                 LPFC_DISC_TRC_MBOX_VPORT,
2588                                 "MBOX Bsy vport:  cmd:x%x mb:x%x x%x",
2589                                 (uint32_t)mb->mbxCommand,
2590                                 mb->un.varWords[0], mb->un.varWords[1]);
2591                 }
2592                 else {
2593                         lpfc_debugfs_disc_trc(phba->pport,
2594                                 LPFC_DISC_TRC_MBOX,
2595                                 "MBOX Bsy:        cmd:x%x mb:x%x x%x",
2596                                 (uint32_t)mb->mbxCommand,
2597                                 mb->un.varWords[0], mb->un.varWords[1]);
2598                 }
2599
2600                 return MBX_BUSY;
2601         }
2602
2603         psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
2604
2605         /* If we are not polling, we MUST be in SLI2 mode */
2606         if (flag != MBX_POLL) {
2607                 if (!(psli->sli_flag & LPFC_SLI2_ACTIVE) &&
2608                     (mb->mbxCommand != MBX_KILL_BOARD)) {
2609                         psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2610                         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2611                         /* Mbox command <mbxCommand> cannot issue */
2612                         LOG_MBOX_CANNOT_ISSUE_DATA(phba, pmbox, psli, flag);
2613                         return MBX_NOT_FINISHED;
2614                 }
2615                 /* timeout active mbox command */
2616                 mod_timer(&psli->mbox_tmo, (jiffies +
2617                                (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
2618         }
2619
2620         /* Mailbox cmd <cmd> issue */
2621         lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
2622                         "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
2623                         "x%x\n",
2624                         pmbox->vport ? pmbox->vport->vpi : 0,
2625                         mb->mbxCommand, phba->pport->port_state,
2626                         psli->sli_flag, flag);
2627
2628         if (mb->mbxCommand != MBX_HEARTBEAT) {
2629                 if (pmbox->vport) {
2630                         lpfc_debugfs_disc_trc(pmbox->vport,
2631                                 LPFC_DISC_TRC_MBOX_VPORT,
2632                                 "MBOX Send vport: cmd:x%x mb:x%x x%x",
2633                                 (uint32_t)mb->mbxCommand,
2634                                 mb->un.varWords[0], mb->un.varWords[1]);
2635                 }
2636                 else {
2637                         lpfc_debugfs_disc_trc(phba->pport,
2638                                 LPFC_DISC_TRC_MBOX,
2639                                 "MBOX Send:       cmd:x%x mb:x%x x%x",
2640                                 (uint32_t)mb->mbxCommand,
2641                                 mb->un.varWords[0], mb->un.varWords[1]);
2642                 }
2643         }
2644
2645         psli->slistat.mbox_cmd++;
2646         evtctr = psli->slistat.mbox_event;
2647
2648         /* next set own bit for the adapter and copy over command word */
2649         mb->mbxOwner = OWN_CHIP;
2650
2651         if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2652                 /* First copy command data to host SLIM area */
2653                 lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE);
2654         } else {
2655                 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2656                         /* copy command data into host mbox for cmpl */
2657                         lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx,
2658                                               MAILBOX_CMD_SIZE);
2659                 }
2660
2661                 /* First copy mbox command data to HBA SLIM, skip past first
2662                    word */
2663                 to_slim = phba->MBslimaddr + sizeof (uint32_t);
2664                 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
2665                             MAILBOX_CMD_SIZE - sizeof (uint32_t));
2666
2667                 /* Next copy over first word, with mbxOwner set */
2668                 ldata = *((volatile uint32_t *)mb);
2669                 to_slim = phba->MBslimaddr;
2670                 writel(ldata, to_slim);
2671                 readl(to_slim); /* flush */
2672
2673                 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2674                         /* switch over to host mailbox */
2675                         psli->sli_flag |= LPFC_SLI2_ACTIVE;
2676                 }
2677         }
2678
2679         wmb();
2680         /* interrupt board to doit right away */
2681         writel(CA_MBATT, phba->CAregaddr);
2682         readl(phba->CAregaddr); /* flush */
2683
2684         switch (flag) {
2685         case MBX_NOWAIT:
2686                 /* Don't wait for it to finish, just return */
2687                 psli->mbox_active = pmbox;
2688                 break;
2689
2690         case MBX_POLL:
2691                 psli->mbox_active = NULL;
2692                 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2693                         /* First read mbox status word */
2694                         word0 = *((volatile uint32_t *)&phba->slim2p->mbx);
2695                         word0 = le32_to_cpu(word0);
2696                 } else {
2697                         /* First read mbox status word */
2698                         word0 = readl(phba->MBslimaddr);
2699                 }
2700
2701                 /* Read the HBA Host Attention Register */
2702                 ha_copy = readl(phba->HAregaddr);
2703
2704                 i = lpfc_mbox_tmo_val(phba, mb->mbxCommand);
2705                 i *= 1000; /* Convert to ms */
2706
2707                 /* Wait for command to complete */
2708                 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
2709                        (!(ha_copy & HA_MBATT) &&
2710                         (phba->link_state > LPFC_WARM_START))) {
2711                         if (i-- <= 0) {
2712                                 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2713                                 spin_unlock_irqrestore(&phba->hbalock,
2714                                                        drvr_flag);
2715                                 return MBX_NOT_FINISHED;
2716                         }
2717
2718                         /* Check if we took a mbox interrupt while we were
2719                            polling */
2720                         if (((word0 & OWN_CHIP) != OWN_CHIP)
2721                             && (evtctr != psli->slistat.mbox_event))
2722                                 break;
2723
2724                         spin_unlock_irqrestore(&phba->hbalock,
2725                                                drvr_flag);
2726
2727                         msleep(1);
2728
2729                         spin_lock_irqsave(&phba->hbalock, drvr_flag);
2730
2731                         if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2732                                 /* First copy command data */
2733                                 word0 = *((volatile uint32_t *)
2734                                                 &phba->slim2p->mbx);
2735                                 word0 = le32_to_cpu(word0);
2736                                 if (mb->mbxCommand == MBX_CONFIG_PORT) {
2737                                         MAILBOX_t *slimmb;
2738                                         volatile uint32_t slimword0;
2739                                         /* Check real SLIM for any errors */
2740                                         slimword0 = readl(phba->MBslimaddr);
2741                                         slimmb = (MAILBOX_t *) & slimword0;
2742                                         if (((slimword0 & OWN_CHIP) != OWN_CHIP)
2743                                             && slimmb->mbxStatus) {
2744                                                 psli->sli_flag &=
2745                                                     ~LPFC_SLI2_ACTIVE;
2746                                                 word0 = slimword0;
2747                                         }
2748                                 }
2749                         } else {
2750                                 /* First copy command data */
2751                                 word0 = readl(phba->MBslimaddr);
2752                         }
2753                         /* Read the HBA Host Attention Register */
2754                         ha_copy = readl(phba->HAregaddr);
2755                 }
2756
2757                 if (psli->sli_flag & LPFC_SLI2_ACTIVE) {
2758                         /* copy results back to user */
2759                         lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb,
2760                                               MAILBOX_CMD_SIZE);
2761                 } else {
2762                         /* First copy command data */
2763                         lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
2764                                                         MAILBOX_CMD_SIZE);
2765                         if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
2766                                 pmbox->context2) {
2767                                 lpfc_memcpy_from_slim((void *)pmbox->context2,
2768                                       phba->MBslimaddr + DMP_RSP_OFFSET,
2769                                                       mb->un.varDmp.word_cnt);
2770                         }
2771                 }
2772
2773                 writel(HA_MBATT, phba->HAregaddr);
2774                 readl(phba->HAregaddr); /* flush */
2775
2776                 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
2777                 status = mb->mbxStatus;
2778         }
2779
2780         spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
2781         return status;
2782 }
2783
2784 /*
2785  * Caller needs to hold lock.
2786  */
2787 static void
2788 __lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2789                     struct lpfc_iocbq *piocb)
2790 {
2791         /* Insert the caller's iocb in the txq tail for later processing. */
2792         list_add_tail(&piocb->list, &pring->txq);
2793         pring->txq_cnt++;
2794 }
2795
2796 static struct lpfc_iocbq *
2797 lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2798                    struct lpfc_iocbq **piocb)
2799 {
2800         struct lpfc_iocbq * nextiocb;
2801
2802         nextiocb = lpfc_sli_ringtx_get(phba, pring);
2803         if (!nextiocb) {
2804                 nextiocb = *piocb;
2805                 *piocb = NULL;
2806         }
2807
2808         return nextiocb;
2809 }
2810
2811 /*
2812  * Lockless version of lpfc_sli_issue_iocb.
2813  */
2814 static int
2815 __lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2816                     struct lpfc_iocbq *piocb, uint32_t flag)
2817 {
2818         struct lpfc_iocbq *nextiocb;
2819         IOCB_t *iocb;
2820
2821         if (piocb->iocb_cmpl && (!piocb->vport) &&
2822            (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
2823            (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
2824                 lpfc_printf_log(phba, KERN_ERR,
2825                                 LOG_SLI | LOG_VPORT,
2826                                 "1807 IOCB x%x failed. No vport\n",
2827                                 piocb->iocb.ulpCommand);
2828                 dump_stack();
2829                 return IOCB_ERROR;
2830         }
2831
2832
2833         /* If the PCI channel is in offline state, do not post iocbs. */
2834         if (unlikely(pci_channel_offline(phba->pcidev)))
2835                 return IOCB_ERROR;
2836
2837         /*
2838          * We should never get an IOCB if we are in a < LINK_DOWN state
2839          */
2840         if (unlikely(phba->link_state < LPFC_LINK_DOWN))
2841                 return IOCB_ERROR;
2842
2843         /*
2844          * Check to see if we are blocking IOCB processing because of a
2845          * outstanding event.
2846          */
2847         if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
2848                 goto iocb_busy;
2849
2850         if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
2851                 /*
2852                  * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
2853                  * can be issued if the link is not up.
2854                  */
2855                 switch (piocb->iocb.ulpCommand) {
2856                 case CMD_QUE_RING_BUF_CN:
2857                 case CMD_QUE_RING_BUF64_CN:
2858                         /*
2859                          * For IOCBs, like QUE_RING_BUF, that have no rsp ring
2860                          * completion, iocb_cmpl MUST be 0.
2861                          */
2862                         if (piocb->iocb_cmpl)
2863                                 piocb->iocb_cmpl = NULL;
2864                         /*FALLTHROUGH*/
2865                 case CMD_CREATE_XRI_CR:
2866                 case CMD_CLOSE_XRI_CN:
2867                 case CMD_CLOSE_XRI_CX:
2868                         break;
2869                 default:
2870                         goto iocb_busy;
2871                 }
2872
2873         /*
2874          * For FCP commands, we must be in a state where we can process link
2875          * attention events.
2876          */
2877         } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
2878                             !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
2879                 goto iocb_busy;
2880         }
2881
2882         while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
2883                (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
2884                 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
2885
2886         if (iocb)
2887                 lpfc_sli_update_ring(phba, pring);
2888         else
2889                 lpfc_sli_update_full_ring(phba, pring);
2890
2891         if (!piocb)
2892                 return IOCB_SUCCESS;
2893
2894         goto out_busy;
2895
2896  iocb_busy:
2897         pring->stats.iocb_cmd_delay++;
2898
2899  out_busy:
2900
2901         if (!(flag & SLI_IOCB_RET_IOCB)) {
2902                 __lpfc_sli_ringtx_put(phba, pring, piocb);
2903                 return IOCB_SUCCESS;
2904         }
2905
2906         return IOCB_BUSY;
2907 }
2908
2909
2910 int
2911 lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2912                     struct lpfc_iocbq *piocb, uint32_t flag)
2913 {
2914         unsigned long iflags;
2915         int rc;
2916
2917         spin_lock_irqsave(&phba->hbalock, iflags);
2918         rc = __lpfc_sli_issue_iocb(phba, pring, piocb, flag);
2919         spin_unlock_irqrestore(&phba->hbalock, iflags);
2920
2921         return rc;
2922 }
2923
2924 static int
2925 lpfc_extra_ring_setup( struct lpfc_hba *phba)
2926 {
2927         struct lpfc_sli *psli;
2928         struct lpfc_sli_ring *pring;
2929
2930         psli = &phba->sli;
2931
2932         /* Adjust cmd/rsp ring iocb entries more evenly */
2933
2934         /* Take some away from the FCP ring */
2935         pring = &psli->ring[psli->fcp_ring];
2936         pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
2937         pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
2938         pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
2939         pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
2940
2941         /* and give them to the extra ring */
2942         pring = &psli->ring[psli->extra_ring];
2943
2944         pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
2945         pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
2946         pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
2947         pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
2948
2949         /* Setup default profile for this ring */
2950         pring->iotag_max = 4096;
2951         pring->num_mask = 1;
2952         pring->prt[0].profile = 0;      /* Mask 0 */
2953         pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
2954         pring->prt[0].type = phba->cfg_multi_ring_type;
2955         pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
2956         return 0;
2957 }
2958
2959 static void
2960 lpfc_sli_async_event_handler(struct lpfc_hba * phba,
2961         struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
2962 {
2963         IOCB_t *icmd;
2964         uint16_t evt_code;
2965         uint16_t temp;
2966         struct temp_event temp_event_data;
2967         struct Scsi_Host *shost;
2968
2969         icmd = &iocbq->iocb;
2970         evt_code = icmd->un.asyncstat.evt_code;
2971         temp = icmd->ulpContext;
2972
2973         if ((evt_code != ASYNC_TEMP_WARN) &&
2974                 (evt_code != ASYNC_TEMP_SAFE)) {
2975                 lpfc_printf_log(phba,
2976                         KERN_ERR,
2977                         LOG_SLI,
2978                         "0327 Ring %d handler: unexpected ASYNC_STATUS"
2979                         " evt_code 0x%x\n",
2980                         pring->ringno,
2981                         icmd->un.asyncstat.evt_code);
2982                 return;
2983         }
2984         temp_event_data.data = (uint32_t)temp;
2985         temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
2986         if (evt_code == ASYNC_TEMP_WARN) {
2987                 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
2988                 lpfc_printf_log(phba,
2989                                 KERN_WARNING,
2990                                 LOG_TEMP,
2991                                 "0339 Adapter is very hot, please take "
2992                                 "corrective action. temperature : %d Celsius\n",
2993                                 temp);
2994         }
2995         if (evt_code == ASYNC_TEMP_SAFE) {
2996                 temp_event_data.event_code = LPFC_NORMAL_TEMP;
2997                 lpfc_printf_log(phba,
2998                                 KERN_INFO,
2999                                 LOG_TEMP,
3000                                 "0340 Adapter temperature is OK now. "
3001                                 "temperature : %d Celsius\n",
3002                                 temp);
3003         }
3004
3005         /* Send temperature change event to applications */
3006         shost = lpfc_shost_from_vport(phba->pport);
3007         fc_host_post_vendor_event(shost, fc_get_event_number(),
3008                 sizeof(temp_event_data), (char *) &temp_event_data,
3009                 SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
3010
3011 }
3012
3013
3014 int
3015 lpfc_sli_setup(struct lpfc_hba *phba)
3016 {
3017         int i, totiocbsize = 0;
3018         struct lpfc_sli *psli = &phba->sli;
3019         struct lpfc_sli_ring *pring;
3020
3021         psli->num_rings = MAX_CONFIGURED_RINGS;
3022         psli->sli_flag = 0;
3023         psli->fcp_ring = LPFC_FCP_RING;
3024         psli->next_ring = LPFC_FCP_NEXT_RING;
3025         psli->extra_ring = LPFC_EXTRA_RING;
3026
3027         psli->iocbq_lookup = NULL;
3028         psli->iocbq_lookup_len = 0;
3029         psli->last_iotag = 0;
3030
3031         for (i = 0; i < psli->num_rings; i++) {
3032                 pring = &psli->ring[i];
3033                 switch (i) {
3034                 case LPFC_FCP_RING:     /* ring 0 - FCP */
3035                         /* numCiocb and numRiocb are used in config_port */
3036                         pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
3037                         pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
3038                         pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
3039                         pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
3040                         pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
3041                         pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
3042                         pring->sizeCiocb = (phba->sli_rev == 3) ?
3043                                                         SLI3_IOCB_CMD_SIZE :
3044                                                         SLI2_IOCB_CMD_SIZE;
3045                         pring->sizeRiocb = (phba->sli_rev == 3) ?
3046                                                         SLI3_IOCB_RSP_SIZE :
3047                                                         SLI2_IOCB_RSP_SIZE;
3048                         pring->iotag_ctr = 0;
3049                         pring->iotag_max =
3050                             (phba->cfg_hba_queue_depth * 2);
3051                         pring->fast_iotag = pring->iotag_max;
3052                         pring->num_mask = 0;
3053                         break;
3054                 case LPFC_EXTRA_RING:   /* ring 1 - EXTRA */
3055                         /* numCiocb and numRiocb are used in config_port */
3056                         pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
3057                         pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
3058                         pring->sizeCiocb = (phba->sli_rev == 3) ?
3059                                                         SLI3_IOCB_CMD_SIZE :
3060                                                         SLI2_IOCB_CMD_SIZE;
3061                         pring->sizeRiocb = (phba->sli_rev == 3) ?
3062                                                         SLI3_IOCB_RSP_SIZE :
3063                                                         SLI2_IOCB_RSP_SIZE;
3064                         pring->iotag_max = phba->cfg_hba_queue_depth;
3065                         pring->num_mask = 0;
3066                         break;
3067                 case LPFC_ELS_RING:     /* ring 2 - ELS / CT */
3068                         /* numCiocb and numRiocb are used in config_port */
3069                         pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
3070                         pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
3071                         pring->sizeCiocb = (phba->sli_rev == 3) ?
3072                                                         SLI3_IOCB_CMD_SIZE :
3073                                                         SLI2_IOCB_CMD_SIZE;
3074                         pring->sizeRiocb = (phba->sli_rev == 3) ?
3075                                                         SLI3_IOCB_RSP_SIZE :
3076                                                         SLI2_IOCB_RSP_SIZE;
3077                         pring->fast_iotag = 0;
3078                         pring->iotag_ctr = 0;
3079                         pring->iotag_max = 4096;
3080                         pring->lpfc_sli_rcv_async_status =
3081                                 lpfc_sli_async_event_handler;
3082                         pring->num_mask = 4;
3083                         pring->prt[0].profile = 0;      /* Mask 0 */
3084                         pring->prt[0].rctl = FC_ELS_REQ;
3085                         pring->prt[0].type = FC_ELS_DATA;
3086                         pring->prt[0].lpfc_sli_rcv_unsol_event =
3087                             lpfc_els_unsol_event;
3088                         pring->prt[1].profile = 0;      /* Mask 1 */
3089                         pring->prt[1].rctl = FC_ELS_RSP;
3090                         pring->prt[1].type = FC_ELS_DATA;
3091                         pring->prt[1].lpfc_sli_rcv_unsol_event =
3092                             lpfc_els_unsol_event;
3093                         pring->prt[2].profile = 0;      /* Mask 2 */
3094                         /* NameServer Inquiry */
3095                         pring->prt[2].rctl = FC_UNSOL_CTL;
3096                         /* NameServer */
3097                         pring->prt[2].type = FC_COMMON_TRANSPORT_ULP;
3098                         pring->prt[2].lpfc_sli_rcv_unsol_event =
3099                             lpfc_ct_unsol_event;
3100                         pring->prt[3].profile = 0;      /* Mask 3 */
3101                         /* NameServer response */
3102                         pring->prt[3].rctl = FC_SOL_CTL;
3103                         /* NameServer */
3104                         pring->prt[3].type = FC_COMMON_TRANSPORT_ULP;
3105                         pring->prt[3].lpfc_sli_rcv_unsol_event =
3106                             lpfc_ct_unsol_event;
3107                         break;
3108                 }
3109                 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
3110                                 (pring->numRiocb * pring->sizeRiocb);
3111         }
3112         if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
3113                 /* Too many cmd / rsp ring entries in SLI2 SLIM */
3114                 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
3115                        "SLI2 SLIM Data: x%x x%lx\n",
3116                        phba->brd_no, totiocbsize,
3117                        (unsigned long) MAX_SLIM_IOCB_SIZE);
3118         }
3119         if (phba->cfg_multi_ring_support == 2)
3120                 lpfc_extra_ring_setup(phba);
3121
3122         return 0;
3123 }
3124
3125 int
3126 lpfc_sli_queue_setup(struct lpfc_hba *phba)
3127 {
3128         struct lpfc_sli *psli;
3129         struct lpfc_sli_ring *pring;
3130         int i;
3131
3132         psli = &phba->sli;
3133         spin_lock_irq(&phba->hbalock);
3134         INIT_LIST_HEAD(&psli->mboxq);
3135         INIT_LIST_HEAD(&psli->mboxq_cmpl);
3136         /* Initialize list headers for txq and txcmplq as double linked lists */
3137         for (i = 0; i < psli->num_rings; i++) {
3138                 pring = &psli->ring[i];
3139                 pring->ringno = i;
3140                 pring->next_cmdidx  = 0;
3141                 pring->local_getidx = 0;
3142                 pring->cmdidx = 0;
3143                 INIT_LIST_HEAD(&pring->txq);
3144                 INIT_LIST_HEAD(&pring->txcmplq);
3145                 INIT_LIST_HEAD(&pring->iocb_continueq);
3146                 INIT_LIST_HEAD(&pring->postbufq);
3147         }
3148         spin_unlock_irq(&phba->hbalock);
3149         return 1;
3150 }
3151
3152 int
3153 lpfc_sli_host_down(struct lpfc_vport *vport)
3154 {
3155         LIST_HEAD(completions);
3156         struct lpfc_hba *phba = vport->phba;
3157         struct lpfc_sli *psli = &phba->sli;
3158         struct lpfc_sli_ring *pring;
3159         struct lpfc_iocbq *iocb, *next_iocb;
3160         int i;
3161         unsigned long flags = 0;
3162         uint16_t prev_pring_flag;
3163
3164         lpfc_cleanup_discovery_resources(vport);
3165
3166         spin_lock_irqsave(&phba->hbalock, flags);
3167         for (i = 0; i < psli->num_rings; i++) {
3168                 pring = &psli->ring[i];
3169                 prev_pring_flag = pring->flag;
3170                 if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */
3171                         pring->flag |= LPFC_DEFERRED_RING_EVENT;
3172                 /*
3173                  * Error everything on the txq since these iocbs have not been
3174                  * given to the FW yet.
3175                  */
3176                 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
3177                         if (iocb->vport != vport)
3178                                 continue;
3179                         list_move_tail(&iocb->list, &completions);
3180                         pring->txq_cnt--;
3181                 }
3182
3183                 /* Next issue ABTS for everything on the txcmplq */
3184                 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
3185                                                                         list) {
3186                         if (iocb->vport != vport)
3187                                 continue;
3188                         lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3189                 }
3190
3191                 pring->flag = prev_pring_flag;
3192         }
3193
3194         spin_unlock_irqrestore(&phba->hbalock, flags);
3195
3196         while (!list_empty(&completions)) {
3197                 list_remove_head(&completions, iocb, struct lpfc_iocbq, list);
3198
3199                 if (!iocb->iocb_cmpl)
3200                         lpfc_sli_release_iocbq(phba, iocb);
3201                 else {
3202                         iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
3203                         iocb->iocb.un.ulpWord[4] = IOERR_SLI_DOWN;
3204                         (iocb->iocb_cmpl) (phba, iocb, iocb);
3205                 }
3206         }
3207         return 1;
3208 }
3209
3210 int
3211 lpfc_sli_hba_down(struct lpfc_hba *phba)
3212 {
3213         LIST_HEAD(completions);
3214         struct lpfc_sli *psli = &phba->sli;
3215         struct lpfc_sli_ring *pring;
3216         LPFC_MBOXQ_t *pmb;
3217         struct lpfc_iocbq *iocb;
3218         IOCB_t *cmd = NULL;
3219         int i;
3220         unsigned long flags = 0;
3221
3222         lpfc_hba_down_prep(phba);
3223
3224         lpfc_fabric_abort_hba(phba);
3225
3226         spin_lock_irqsave(&phba->hbalock, flags);
3227         for (i = 0; i < psli->num_rings; i++) {
3228                 pring = &psli->ring[i];
3229                 if (pring->ringno == LPFC_ELS_RING) /* Only slow rings */
3230                         pring->flag |= LPFC_DEFERRED_RING_EVENT;
3231
3232                 /*
3233                  * Error everything on the txq since these iocbs have not been
3234                  * given to the FW yet.
3235                  */
3236                 list_splice_init(&pring->txq, &completions);
3237                 pring->txq_cnt = 0;
3238
3239         }
3240         spin_unlock_irqrestore(&phba->hbalock, flags);
3241
3242         while (!list_empty(&completions)) {
3243                 list_remove_head(&completions, iocb, struct lpfc_iocbq, list);
3244                 cmd = &iocb->iocb;
3245
3246                 if (!iocb->iocb_cmpl)
3247                         lpfc_sli_release_iocbq(phba, iocb);
3248                 else {
3249                         cmd->ulpStatus = IOSTAT_LOCAL_REJECT;
3250                         cmd->un.ulpWord[4] = IOERR_SLI_DOWN;
3251                         (iocb->iocb_cmpl) (phba, iocb, iocb);
3252                 }
3253         }
3254
3255         /* Return any active mbox cmds */
3256         del_timer_sync(&psli->mbox_tmo);
3257         spin_lock_irqsave(&phba->hbalock, flags);
3258
3259         spin_lock(&phba->pport->work_port_lock);
3260         phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
3261         spin_unlock(&phba->pport->work_port_lock);
3262
3263         if (psli->mbox_active) {
3264                 list_add_tail(&psli->mbox_active->list, &completions);
3265                 psli->mbox_active = NULL;
3266                 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
3267         }
3268
3269         /* Return any pending or completed mbox cmds */
3270         list_splice_init(&phba->sli.mboxq, &completions);
3271         list_splice_init(&phba->sli.mboxq_cmpl, &completions);
3272         INIT_LIST_HEAD(&psli->mboxq);
3273         INIT_LIST_HEAD(&psli->mboxq_cmpl);
3274
3275         spin_unlock_irqrestore(&phba->hbalock, flags);
3276
3277         while (!list_empty(&completions)) {
3278                 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
3279                 pmb->mb.mbxStatus = MBX_NOT_FINISHED;
3280                 if (pmb->mbox_cmpl) {
3281                         pmb->mbox_cmpl(phba,pmb);
3282                 }
3283         }
3284         return 1;
3285 }
3286
3287 void
3288 lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
3289 {
3290         uint32_t *src = srcp;
3291         uint32_t *dest = destp;
3292         uint32_t ldata;
3293         int i;
3294
3295         for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
3296                 ldata = *src;
3297                 ldata = le32_to_cpu(ldata);
3298                 *dest = ldata;
3299                 src++;
3300                 dest++;
3301         }
3302 }
3303
3304 int
3305 lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3306                          struct lpfc_dmabuf *mp)
3307 {
3308         /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
3309            later */
3310         spin_lock_irq(&phba->hbalock);
3311         list_add_tail(&mp->list, &pring->postbufq);
3312         pring->postbufq_cnt++;
3313         spin_unlock_irq(&phba->hbalock);
3314         return 0;
3315 }
3316
3317
3318 struct lpfc_dmabuf *
3319 lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3320                          dma_addr_t phys)
3321 {
3322         struct lpfc_dmabuf *mp, *next_mp;
3323         struct list_head *slp = &pring->postbufq;
3324
3325         /* Search postbufq, from the begining, looking for a match on phys */
3326         spin_lock_irq(&phba->hbalock);
3327         list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
3328                 if (mp->phys == phys) {
3329                         list_del_init(&mp->list);
3330                         pring->postbufq_cnt--;
3331                         spin_unlock_irq(&phba->hbalock);
3332                         return mp;
3333                 }
3334         }
3335
3336         spin_unlock_irq(&phba->hbalock);
3337         lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3338                         "0410 Cannot find virtual addr for mapped buf on "
3339                         "ring %d Data x%llx x%p x%p x%x\n",
3340                         pring->ringno, (unsigned long long)phys,
3341                         slp->next, slp->prev, pring->postbufq_cnt);
3342         return NULL;
3343 }
3344
3345 static void
3346 lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3347                         struct lpfc_iocbq *rspiocb)
3348 {
3349         IOCB_t *irsp = &rspiocb->iocb;
3350         uint16_t abort_iotag, abort_context;
3351         struct lpfc_iocbq *abort_iocb;
3352         struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
3353
3354         abort_iocb = NULL;
3355
3356         if (irsp->ulpStatus) {
3357                 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
3358                 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
3359
3360                 spin_lock_irq(&phba->hbalock);
3361                 if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag)
3362                         abort_iocb = phba->sli.iocbq_lookup[abort_iotag];
3363
3364                 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
3365                                 "0327 Cannot abort els iocb %p "
3366                                 "with tag %x context %x, abort status %x, "
3367                                 "abort code %x\n",
3368                                 abort_iocb, abort_iotag, abort_context,
3369                                 irsp->ulpStatus, irsp->un.ulpWord[4]);
3370
3371                 /*
3372                  * make sure we have the right iocbq before taking it
3373                  * off the txcmplq and try to call completion routine.
3374                  */
3375                 if (!abort_iocb ||
3376                     abort_iocb->iocb.ulpContext != abort_context ||
3377                     (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
3378                         spin_unlock_irq(&phba->hbalock);
3379                 else {
3380                         list_del_init(&abort_iocb->list);
3381                         pring->txcmplq_cnt--;
3382                         spin_unlock_irq(&phba->hbalock);
3383
3384                         abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3385                         abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
3386                         abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
3387                         (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
3388                 }
3389         }
3390
3391         lpfc_sli_release_iocbq(phba, cmdiocb);
3392         return;
3393 }
3394
3395 static void
3396 lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3397                      struct lpfc_iocbq *rspiocb)
3398 {
3399         IOCB_t *irsp = &rspiocb->iocb;
3400
3401         /* ELS cmd tag <ulpIoTag> completes */
3402         lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
3403                         "0133 Ignoring ELS cmd tag x%x completion Data: "
3404                         "x%x x%x x%x\n",
3405                         irsp->ulpIoTag, irsp->ulpStatus,
3406                         irsp->un.ulpWord[4], irsp->ulpTimeout);
3407         if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
3408                 lpfc_ct_free_iocb(phba, cmdiocb);
3409         else
3410                 lpfc_els_free_iocb(phba, cmdiocb);
3411         return;
3412 }
3413
3414 int
3415 lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3416                            struct lpfc_iocbq *cmdiocb)
3417 {
3418         struct lpfc_vport *vport = cmdiocb->vport;
3419         struct lpfc_iocbq *abtsiocbp;
3420         IOCB_t *icmd = NULL;
3421         IOCB_t *iabt = NULL;
3422         int retval = IOCB_ERROR;
3423
3424         /*
3425          * There are certain command types we don't want to abort.  And we
3426          * don't want to abort commands that are already in the process of
3427          * being aborted.
3428          */
3429         icmd = &cmdiocb->iocb;
3430         if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
3431             icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
3432             (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
3433                 return 0;
3434
3435         /* If we're unloading, don't abort iocb on the ELS ring, but change the
3436          * callback so that nothing happens when it finishes.
3437          */
3438         if ((vport->load_flag & FC_UNLOADING) &&
3439             (pring->ringno == LPFC_ELS_RING)) {
3440                 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
3441                         cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
3442                 else
3443                         cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
3444                 goto abort_iotag_exit;
3445         }
3446
3447         /* issue ABTS for this IOCB based on iotag */
3448         abtsiocbp = __lpfc_sli_get_iocbq(phba);
3449         if (abtsiocbp == NULL)
3450                 return 0;
3451
3452         /* This signals the response to set the correct status
3453          * before calling the completion handler.
3454          */
3455         cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
3456
3457         iabt = &abtsiocbp->iocb;
3458         iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
3459         iabt->un.acxri.abortContextTag = icmd->ulpContext;
3460         iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
3461         iabt->ulpLe = 1;
3462         iabt->ulpClass = icmd->ulpClass;
3463
3464         if (phba->link_state >= LPFC_LINK_UP)
3465                 iabt->ulpCommand = CMD_ABORT_XRI_CN;
3466         else
3467                 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
3468
3469         abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
3470
3471         lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
3472                          "0339 Abort xri x%x, original iotag x%x, "
3473                          "abort cmd iotag x%x\n",
3474                          iabt->un.acxri.abortContextTag,
3475                          iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
3476         retval = __lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0);
3477
3478 abort_iotag_exit:
3479         /*
3480          * Caller to this routine should check for IOCB_ERROR
3481          * and handle it properly.  This routine no longer removes
3482          * iocb off txcmplq and call compl in case of IOCB_ERROR.
3483          */
3484         return retval;
3485 }
3486
3487 static int
3488 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
3489                            uint16_t tgt_id, uint64_t lun_id,
3490                            lpfc_ctx_cmd ctx_cmd)
3491 {
3492         struct lpfc_scsi_buf *lpfc_cmd;
3493         struct scsi_cmnd *cmnd;
3494         int rc = 1;
3495
3496         if (!(iocbq->iocb_flag &  LPFC_IO_FCP))
3497                 return rc;
3498
3499         if (iocbq->vport != vport)
3500                 return rc;
3501
3502         lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
3503         cmnd = lpfc_cmd->pCmd;
3504
3505         if (cmnd == NULL)
3506                 return rc;
3507
3508         switch (ctx_cmd) {
3509         case LPFC_CTX_LUN:
3510                 if ((cmnd->device->id == tgt_id) &&
3511                     (cmnd->device->lun == lun_id))
3512                         rc = 0;
3513                 break;
3514         case LPFC_CTX_TGT:
3515                 if (cmnd->device->id == tgt_id)
3516                         rc = 0;
3517                 break;
3518         case LPFC_CTX_HOST:
3519                 rc = 0;
3520                 break;
3521         default:
3522                 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
3523                         __FUNCTION__, ctx_cmd);
3524                 break;
3525         }
3526
3527         return rc;
3528 }
3529
3530 int
3531 lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
3532                   lpfc_ctx_cmd ctx_cmd)
3533 {
3534         struct lpfc_hba *phba = vport->phba;
3535         struct lpfc_iocbq *iocbq;
3536         int sum, i;
3537
3538         for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
3539                 iocbq = phba->sli.iocbq_lookup[i];
3540
3541                 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
3542                                                 ctx_cmd) == 0)
3543                         sum++;
3544         }
3545
3546         return sum;
3547 }
3548
3549 void
3550 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
3551                         struct lpfc_iocbq *rspiocb)
3552 {
3553         lpfc_sli_release_iocbq(phba, cmdiocb);
3554         return;
3555 }
3556
3557 int
3558 lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
3559                     uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
3560 {
3561         struct lpfc_hba *phba = vport->phba;
3562         struct lpfc_iocbq *iocbq;
3563         struct lpfc_iocbq *abtsiocb;
3564         IOCB_t *cmd = NULL;
3565         int errcnt = 0, ret_val = 0;
3566         int i;
3567
3568         for (i = 1; i <= phba->sli.last_iotag; i++) {
3569                 iocbq = phba->sli.iocbq_lookup[i];
3570
3571                 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
3572                                                abort_cmd) != 0)
3573                         continue;
3574
3575                 /* issue ABTS for this IOCB based on iotag */
3576                 abtsiocb = lpfc_sli_get_iocbq(phba);
3577                 if (abtsiocb == NULL) {
3578                         errcnt++;
3579                         continue;
3580                 }
3581
3582                 cmd = &iocbq->iocb;
3583                 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
3584                 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
3585                 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
3586                 abtsiocb->iocb.ulpLe = 1;
3587                 abtsiocb->iocb.ulpClass = cmd->ulpClass;
3588                 abtsiocb->vport = phba->pport;
3589
3590                 if (lpfc_is_link_up(phba))
3591                         abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
3592                 else
3593                         abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
3594
3595                 /* Setup callback routine and issue the command. */
3596                 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
3597                 ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
3598                 if (ret_val == IOCB_ERROR) {
3599                         lpfc_sli_release_iocbq(phba, abtsiocb);
3600                         errcnt++;
3601                         continue;
3602                 }
3603         }
3604
3605         return errcnt;
3606 }
3607
3608 static void
3609 lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
3610                         struct lpfc_iocbq *cmdiocbq,
3611                         struct lpfc_iocbq *rspiocbq)
3612 {
3613         wait_queue_head_t *pdone_q;
3614         unsigned long iflags;
3615
3616         spin_lock_irqsave(&phba->hbalock, iflags);
3617         cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
3618         if (cmdiocbq->context2 && rspiocbq)
3619                 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
3620                        &rspiocbq->iocb, sizeof(IOCB_t));
3621
3622         pdone_q = cmdiocbq->context_un.wait_queue;
3623         if (pdone_q)
3624                 wake_up(pdone_q);
3625         spin_unlock_irqrestore(&phba->hbalock, iflags);
3626         return;
3627 }
3628
3629 /*
3630  * Issue the caller's iocb and wait for its completion, but no longer than the
3631  * caller's timeout.  Note that iocb_flags is cleared before the
3632  * lpfc_sli_issue_call since the wake routine sets a unique value and by
3633  * definition this is a wait function.
3634  */
3635
3636 int
3637 lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
3638                          struct lpfc_sli_ring *pring,
3639                          struct lpfc_iocbq *piocb,
3640                          struct lpfc_iocbq *prspiocbq,
3641                          uint32_t timeout)
3642 {
3643         DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
3644         long timeleft, timeout_req = 0;
3645         int retval = IOCB_SUCCESS;
3646         uint32_t creg_val;
3647
3648         /*
3649          * If the caller has provided a response iocbq buffer, then context2
3650          * is NULL or its an error.
3651          */
3652         if (prspiocbq) {
3653                 if (piocb->context2)
3654                         return IOCB_ERROR;
3655                 piocb->context2 = prspiocbq;
3656         }
3657
3658         piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
3659         piocb->context_un.wait_queue = &done_q;
3660         piocb->iocb_flag &= ~LPFC_IO_WAKE;
3661
3662         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3663                 creg_val = readl(phba->HCregaddr);
3664                 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
3665                 writel(creg_val, phba->HCregaddr);
3666                 readl(phba->HCregaddr); /* flush */
3667         }
3668
3669         retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
3670         if (retval == IOCB_SUCCESS) {
3671                 timeout_req = timeout * HZ;
3672                 timeleft = wait_event_timeout(done_q,
3673                                 piocb->iocb_flag & LPFC_IO_WAKE,
3674                                 timeout_req);
3675
3676                 if (piocb->iocb_flag & LPFC_IO_WAKE) {
3677                         lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3678                                         "0331 IOCB wake signaled\n");
3679                 } else if (timeleft == 0) {
3680                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3681                                         "0338 IOCB wait timeout error - no "
3682                                         "wake response Data x%x\n", timeout);
3683                         retval = IOCB_TIMEDOUT;
3684                 } else {
3685                         lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3686                                         "0330 IOCB wake NOT set, "
3687                                         "Data x%x x%lx\n",
3688                                         timeout, (timeleft / jiffies));
3689                         retval = IOCB_TIMEDOUT;
3690                 }
3691         } else {
3692                 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3693                                 ":0332 IOCB wait issue failed, Data x%x\n",
3694                                 retval);
3695                 retval = IOCB_ERROR;
3696         }
3697
3698         if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
3699                 creg_val = readl(phba->HCregaddr);
3700                 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
3701                 writel(creg_val, phba->HCregaddr);
3702                 readl(phba->HCregaddr); /* flush */
3703         }
3704
3705         if (prspiocbq)
3706                 piocb->context2 = NULL;
3707
3708         piocb->context_un.wait_queue = NULL;
3709         piocb->iocb_cmpl = NULL;
3710         return retval;
3711 }
3712
3713 int
3714 lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
3715                          uint32_t timeout)
3716 {
3717         DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
3718         int retval;
3719         unsigned long flag;
3720
3721         /* The caller must leave context1 empty. */
3722         if (pmboxq->context1)
3723                 return MBX_NOT_FINISHED;
3724
3725         /* setup wake call as IOCB callback */
3726         pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
3727         /* setup context field to pass wait_queue pointer to wake function  */
3728         pmboxq->context1 = &done_q;
3729
3730         /* now issue the command */
3731         retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
3732
3733         if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
3734                 wait_event_interruptible_timeout(done_q,
3735                                 pmboxq->mbox_flag & LPFC_MBX_WAKE,
3736                                 timeout * HZ);
3737
3738                 spin_lock_irqsave(&phba->hbalock, flag);
3739                 pmboxq->context1 = NULL;
3740                 /*
3741                  * if LPFC_MBX_WAKE flag is set the mailbox is completed
3742                  * else do not free the resources.
3743                  */
3744                 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
3745                         retval = MBX_SUCCESS;
3746                 else {
3747                         retval = MBX_TIMEOUT;
3748                         pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3749                 }
3750                 spin_unlock_irqrestore(&phba->hbalock, flag);
3751         }
3752
3753         return retval;
3754 }
3755
3756 int
3757 lpfc_sli_flush_mbox_queue(struct lpfc_hba * phba)
3758 {
3759         struct lpfc_vport *vport = phba->pport;
3760         int i = 0;
3761         uint32_t ha_copy;
3762
3763         while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE && !vport->stopped) {
3764                 if (i++ > LPFC_MBOX_TMO * 1000)
3765                         return 1;
3766
3767                 /*
3768                  * Call lpfc_sli_handle_mb_event only if a mailbox cmd
3769                  * did finish. This way we won't get the misleading
3770                  * "Stray Mailbox Interrupt" message.
3771                  */
3772                 spin_lock_irq(&phba->hbalock);
3773                 ha_copy = phba->work_ha;
3774                 phba->work_ha &= ~HA_MBATT;
3775                 spin_unlock_irq(&phba->hbalock);
3776
3777                 if (ha_copy & HA_MBATT)
3778                         if (lpfc_sli_handle_mb_event(phba) == 0)
3779                                 i = 0;
3780
3781                 msleep(1);
3782         }
3783
3784         return (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) ? 1 : 0;
3785 }
3786
3787 irqreturn_t
3788 lpfc_intr_handler(int irq, void *dev_id)
3789 {
3790         struct lpfc_hba  *phba;
3791         uint32_t ha_copy;
3792         uint32_t work_ha_copy;
3793         unsigned long status;
3794         uint32_t control;
3795
3796         MAILBOX_t *mbox, *pmbox;
3797         struct lpfc_vport *vport;
3798         struct lpfc_nodelist *ndlp;
3799         struct lpfc_dmabuf *mp;
3800         LPFC_MBOXQ_t *pmb;
3801         int rc;
3802
3803         /*
3804          * Get the driver's phba structure from the dev_id and
3805          * assume the HBA is not interrupting.
3806          */
3807         phba = (struct lpfc_hba *) dev_id;
3808
3809         if (unlikely(!phba))
3810                 return IRQ_NONE;
3811
3812         /* If the pci channel is offline, ignore all the interrupts. */
3813         if (unlikely(pci_channel_offline(phba->pcidev)))
3814                 return IRQ_NONE;
3815
3816         phba->sli.slistat.sli_intr++;
3817
3818         /*
3819          * Call the HBA to see if it is interrupting.  If not, don't claim
3820          * the interrupt
3821          */
3822
3823         /* Ignore all interrupts during initialization. */
3824         if (unlikely(phba->link_state < LPFC_LINK_DOWN))
3825                 return IRQ_NONE;
3826
3827         /*
3828          * Read host attention register to determine interrupt source
3829          * Clear Attention Sources, except Error Attention (to
3830          * preserve status) and Link Attention
3831          */
3832         spin_lock(&phba->hbalock);
3833         ha_copy = readl(phba->HAregaddr);
3834         /* If somebody is waiting to handle an eratt don't process it
3835          * here.  The brdkill function will do this.
3836          */
3837         if (phba->link_flag & LS_IGNORE_ERATT)
3838                 ha_copy &= ~HA_ERATT;
3839         writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
3840         readl(phba->HAregaddr); /* flush */
3841         spin_unlock(&phba->hbalock);
3842
3843         if (unlikely(!ha_copy))
3844                 return IRQ_NONE;
3845
3846         work_ha_copy = ha_copy & phba->work_ha_mask;
3847
3848         if (unlikely(work_ha_copy)) {
3849                 if (work_ha_copy & HA_LATT) {
3850                         if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
3851                                 /*
3852                                  * Turn off Link Attention interrupts
3853                                  * until CLEAR_LA done
3854                                  */
3855                                 spin_lock(&phba->hbalock);
3856                                 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
3857                                 control = readl(phba->HCregaddr);
3858                                 control &= ~HC_LAINT_ENA;
3859                                 writel(control, phba->HCregaddr);
3860                                 readl(phba->HCregaddr); /* flush */
3861                                 spin_unlock(&phba->hbalock);
3862                         }
3863                         else
3864                                 work_ha_copy &= ~HA_LATT;
3865                 }
3866
3867                 if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) {
3868                         /*
3869                          * Turn off Slow Rings interrupts, LPFC_ELS_RING is
3870                          * the only slow ring.
3871                          */
3872                         status = (work_ha_copy &
3873                                 (HA_RXMASK  << (4*LPFC_ELS_RING)));
3874                         status >>= (4*LPFC_ELS_RING);
3875                         if (status & HA_RXMASK) {
3876                                 spin_lock(&phba->hbalock);
3877                                 control = readl(phba->HCregaddr);
3878
3879                                 lpfc_debugfs_slow_ring_trc(phba,
3880                                 "ISR slow ring:   ctl:x%x stat:x%x isrcnt:x%x",
3881                                 control, status,
3882                                 (uint32_t)phba->sli.slistat.sli_intr);
3883
3884                                 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
3885                                         lpfc_debugfs_slow_ring_trc(phba,
3886                                                 "ISR Disable ring:"
3887                                                 "pwork:x%x hawork:x%x wait:x%x",
3888                                                 phba->work_ha, work_ha_copy,
3889                                                 (uint32_t)((unsigned long)
3890                                                 phba->work_wait));
3891
3892                                         control &=
3893                                             ~(HC_R0INT_ENA << LPFC_ELS_RING);
3894                                         writel(control, phba->HCregaddr);
3895                                         readl(phba->HCregaddr); /* flush */
3896                                 }
3897                                 else {
3898                                         lpfc_debugfs_slow_ring_trc(phba,
3899                                                 "ISR slow ring:   pwork:"
3900                                                 "x%x hawork:x%x wait:x%x",
3901                                                 phba->work_ha, work_ha_copy,
3902                                                 (uint32_t)((unsigned long)
3903                                                 phba->work_wait));
3904                                 }
3905                                 spin_unlock(&phba->hbalock);
3906                         }
3907                 }
3908
3909                 if (work_ha_copy & HA_ERATT) {
3910                         phba->link_state = LPFC_HBA_ERROR;
3911                         /*
3912                          * There was a link/board error.  Read the
3913                          * status register to retrieve the error event
3914                          * and process it.
3915                          */
3916                         phba->sli.slistat.err_attn_event++;
3917                         /* Save status info */
3918                         phba->work_hs = readl(phba->HSregaddr);
3919                         phba->work_status[0] = readl(phba->MBslimaddr + 0xa8);
3920                         phba->work_status[1] = readl(phba->MBslimaddr + 0xac);
3921
3922                         /* Clear Chip error bit */
3923                         writel(HA_ERATT, phba->HAregaddr);
3924                         readl(phba->HAregaddr); /* flush */
3925                         phba->pport->stopped = 1;
3926                 }
3927
3928                 if ((work_ha_copy & HA_MBATT) &&
3929                     (phba->sli.mbox_active)) {
3930                         pmb = phba->sli.mbox_active;
3931                         pmbox = &pmb->mb;
3932                         mbox = &phba->slim2p->mbx;
3933                         vport = pmb->vport;
3934
3935                         /* First check out the status word */
3936                         lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
3937                         if (pmbox->mbxOwner != OWN_HOST) {
3938                                 /*
3939                                  * Stray Mailbox Interrupt, mbxCommand <cmd>
3940                                  * mbxStatus <status>
3941                                  */
3942                                 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX |
3943                                                 LOG_SLI,
3944                                                 "(%d):0304 Stray Mailbox "
3945                                                 "Interrupt mbxCommand x%x "
3946                                                 "mbxStatus x%x\n",
3947                                                 (vport ? vport->vpi : 0),
3948                                                 pmbox->mbxCommand,
3949                                                 pmbox->mbxStatus);
3950                         }
3951                         phba->last_completion_time = jiffies;
3952                         del_timer_sync(&phba->sli.mbox_tmo);
3953
3954                         phba->sli.mbox_active = NULL;
3955                         if (pmb->mbox_cmpl) {
3956                                 lpfc_sli_pcimem_bcopy(mbox, pmbox,
3957                                                       MAILBOX_CMD_SIZE);
3958                         }
3959                         if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
3960                                 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
3961
3962                                 lpfc_debugfs_disc_trc(vport,
3963                                         LPFC_DISC_TRC_MBOX_VPORT,
3964                                         "MBOX dflt rpi: : status:x%x rpi:x%x",
3965                                         (uint32_t)pmbox->mbxStatus,
3966                                         pmbox->un.varWords[0], 0);
3967
3968                                 if ( !pmbox->mbxStatus) {
3969                                         mp = (struct lpfc_dmabuf *)
3970                                                 (pmb->context1);
3971                                         ndlp = (struct lpfc_nodelist *)
3972                                                 pmb->context2;
3973
3974                                         /* Reg_LOGIN of dflt RPI was successful.
3975                                          * new lets get rid of the RPI using the
3976                                          * same mbox buffer.
3977                                          */
3978                                         lpfc_unreg_login(phba, vport->vpi,
3979                                                 pmbox->un.varWords[0], pmb);
3980                                         pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
3981                                         pmb->context1 = mp;
3982                                         pmb->context2 = ndlp;
3983                                         pmb->vport = vport;
3984                                         spin_lock(&phba->hbalock);
3985                                         phba->sli.sli_flag &=
3986                                                 ~LPFC_SLI_MBOX_ACTIVE;
3987                                         spin_unlock(&phba->hbalock);
3988                                         goto send_current_mbox;
3989                                 }
3990                         }
3991                         spin_lock(&phba->pport->work_port_lock);
3992                         phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
3993                         spin_unlock(&phba->pport->work_port_lock);
3994                         lpfc_mbox_cmpl_put(phba, pmb);
3995                 }
3996                 if ((work_ha_copy & HA_MBATT) &&
3997                     (phba->sli.mbox_active == NULL)) {
3998 send_next_mbox:
3999                         spin_lock(&phba->hbalock);
4000                         phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
4001                         pmb = lpfc_mbox_get(phba);
4002                         spin_unlock(&phba->hbalock);
4003 send_current_mbox:
4004                         /* Process next mailbox command if there is one */
4005                         if (pmb != NULL) {
4006                                 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
4007                                 if (rc == MBX_NOT_FINISHED) {
4008                                         pmb->mb.mbxStatus = MBX_NOT_FINISHED;
4009                                         lpfc_mbox_cmpl_put(phba, pmb);
4010                                         goto send_next_mbox;
4011                                 }
4012                         }
4013
4014                 }
4015
4016                 spin_lock(&phba->hbalock);
4017                 phba->work_ha |= work_ha_copy;
4018                 if (phba->work_wait)
4019                         lpfc_worker_wake_up(phba);
4020                 spin_unlock(&phba->hbalock);
4021         }
4022
4023         ha_copy &= ~(phba->work_ha_mask);
4024
4025         /*
4026          * Process all events on FCP ring.  Take the optimized path for
4027          * FCP IO.  Any other IO is slow path and is handled by
4028          * the worker thread.
4029          */
4030         status = (ha_copy & (HA_RXMASK  << (4*LPFC_FCP_RING)));
4031         status >>= (4*LPFC_FCP_RING);
4032         if (status & HA_RXMASK)
4033                 lpfc_sli_handle_fast_ring_event(phba,
4034                                                 &phba->sli.ring[LPFC_FCP_RING],
4035                                                 status);
4036
4037         if (phba->cfg_multi_ring_support == 2) {
4038                 /*
4039                  * Process all events on extra ring.  Take the optimized path
4040                  * for extra ring IO.  Any other IO is slow path and is handled
4041                  * by the worker thread.
4042                  */
4043                 status = (ha_copy & (HA_RXMASK  << (4*LPFC_EXTRA_RING)));
4044                 status >>= (4*LPFC_EXTRA_RING);
4045                 if (status & HA_RXMASK) {
4046                         lpfc_sli_handle_fast_ring_event(phba,
4047                                         &phba->sli.ring[LPFC_EXTRA_RING],
4048                                         status);
4049                 }
4050         }
4051         return IRQ_HANDLED;
4052
4053 } /* lpfc_intr_handler */