drivers/scsi/qla2xxx/qla_isr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_target.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25
  26 const char *const port_state_str[] = {
  27         "Unknown",
  28         "UNCONFIGURED",
  29         "DEAD",
  30         "LOST",
  31         "ONLINE"
  32 };
  33
  34 static void qla24xx_purex_iocb(scsi_qla_host_t *vha, void *pkt,
  35         void (*process_item)(struct scsi_qla_host *vha, void *pkt))
  36 {
  37         struct purex_list *list = &vha->purex_list;
  38         struct purex_item *item;
  39         ulong flags;
  40
  41         item = kzalloc(sizeof(*item), GFP_KERNEL);
  42         if (!item) {
  43                 ql_log(ql_log_warn, vha, 0x5092,
  44                     ">> Failed allocate purex list item.\n");
  45                 return;
  46         }
  47
  48         item->vha = vha;
  49         item->process_item = process_item;
  50         memcpy(&item->iocb, pkt, sizeof(item->iocb));
  51
  52         spin_lock_irqsave(&list->lock, flags);
  53         list_add_tail(&item->list, &list->head);
  54         spin_unlock_irqrestore(&list->lock, flags);
  55
  56         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
  57 }
  58
  59 static void
  60 qla24xx_process_abts(struct scsi_qla_host *vha, void *pkt)
  61 {
  62         struct abts_entry_24xx *abts = pkt;
  63         struct qla_hw_data *ha = vha->hw;
  64         struct els_entry_24xx *rsp_els;
  65         struct abts_entry_24xx *abts_rsp;
  66         dma_addr_t dma;
  67         uint32_t fctl;
  68         int rval;
  69
  70         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  71
  72         ql_log(ql_log_warn, vha, 0x0287,
  73             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  74             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  75             abts->seq_id, abts->seq_cnt);
  76         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  77             "-------- ABTS RCV -------\n");
  78         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  79             (uint8_t *)abts, sizeof(*abts));
  80
  81         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  82             GFP_KERNEL);
  83         if (!rsp_els) {
  84                 ql_log(ql_log_warn, vha, 0x0287,
  85                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
  86                 return;
  87         }
  88
  89         /* terminate exchange */
  90         memset(rsp_els, 0, sizeof(*rsp_els));
  91         rsp_els->entry_type = ELS_IOCB_TYPE;
  92         rsp_els->entry_count = 1;
  93         rsp_els->nport_handle = ~0;
  94         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  95         rsp_els->control_flags = EPD_RX_XCHG;
  96         ql_dbg(ql_dbg_init, vha, 0x0283,
  97             "Sending ELS Response to terminate exchange %#x...\n",
  98             abts->rx_xch_addr_to_abort);
  99         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 100             "-------- ELS RSP -------\n");
 101         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 102             (uint8_t *)rsp_els, sizeof(*rsp_els));
 103         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 104         if (rval) {
 105                 ql_log(ql_log_warn, vha, 0x0288,
 106                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 107         } else if (rsp_els->comp_status) {
 108                 ql_log(ql_log_warn, vha, 0x0289,
 109                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 110                     __func__, rsp_els->comp_status,
 111                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 112         } else {
 113                 ql_dbg(ql_dbg_init, vha, 0x028a,
 114                     "%s: abort exchange done.\n", __func__);
 115         }
 116
 117         /* send ABTS response */
 118         abts_rsp = (void *)rsp_els;
 119         memset(abts_rsp, 0, sizeof(*abts_rsp));
 120         abts_rsp->entry_type = ABTS_RSP_TYPE;
 121         abts_rsp->entry_count = 1;
 122         abts_rsp->nport_handle = abts->nport_handle;
 123         abts_rsp->vp_idx = abts->vp_idx;
 124         abts_rsp->sof_type = abts->sof_type & 0xf0;
 125         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 126         abts_rsp->d_id[0] = abts->s_id[0];
 127         abts_rsp->d_id[1] = abts->s_id[1];
 128         abts_rsp->d_id[2] = abts->s_id[2];
 129         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 130         abts_rsp->s_id[0] = abts->d_id[0];
 131         abts_rsp->s_id[1] = abts->d_id[1];
 132         abts_rsp->s_id[2] = abts->d_id[2];
 133         abts_rsp->cs_ctl = abts->cs_ctl;
 134         /* include flipping bit23 in fctl */
 135         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 136             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 137         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 138         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 139         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 140         abts_rsp->type = FC_TYPE_BLD;
 141         abts_rsp->rx_id = abts->rx_id;
 142         abts_rsp->ox_id = abts->ox_id;
 143         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 144         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 145         abts_rsp->payload.ba_acc.high_seq_cnt = ~0;
 146         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 147         ql_dbg(ql_dbg_init, vha, 0x028b,
 148             "Sending BA ACC response to ABTS %#x...\n",
 149             abts->rx_xch_addr_to_abort);
 150         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 151             "-------- ELS RSP -------\n");
 152         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 153             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 154         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 155         if (rval) {
 156                 ql_log(ql_log_warn, vha, 0x028c,
 157                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 158         } else if (abts_rsp->comp_status) {
 159                 ql_log(ql_log_warn, vha, 0x028d,
 160                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 161                     __func__, abts_rsp->comp_status,
 162                     abts_rsp->payload.error.subcode1,
 163                     abts_rsp->payload.error.subcode2);
 164         } else {
 165                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 166                     "%s: done.\n", __func__);
 167         }
 168
 169         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 170 }
 171
 172 /**
 173  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 174  * @irq: interrupt number
 175  * @dev_id: SCSI driver HA context
 176  *
 177  * Called by system whenever the host adapter generates an interrupt.
 178  *
 179  * Returns handled flag.
 180  */
 181 irqreturn_t
 182 qla2100_intr_handler(int irq, void *dev_id)
 183 {
 184         scsi_qla_host_t *vha;
 185         struct qla_hw_data *ha;
 186         struct device_reg_2xxx __iomem *reg;
 187         int             status;
 188         unsigned long   iter;
 189         uint16_t        hccr;
 190         uint16_t        mb[8];
 191         struct rsp_que *rsp;
 192         unsigned long   flags;
 193
 194         rsp = (struct rsp_que *) dev_id;
 195         if (!rsp) {
 196                 ql_log(ql_log_info, NULL, 0x505d,
 197                     "%s: NULL response queue pointer.\n", __func__);
 198                 return (IRQ_NONE);
 199         }
 200
 201         ha = rsp->hw;
 202         reg = &ha->iobase->isp;
 203         status = 0;
 204
 205         spin_lock_irqsave(&ha->hardware_lock, flags);
 206         vha = pci_get_drvdata(ha->pdev);
 207         for (iter = 50; iter--; ) {
 208                 hccr = RD_REG_WORD(&reg->hccr);
 209                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 210                         break;
 211                 if (hccr & HCCR_RISC_PAUSE) {
 212                         if (pci_channel_offline(ha->pdev))
 213                                 break;
 214
 215                         /*
 216                          * Issue a "HARD" reset in order for the RISC interrupt
 217                          * bit to be cleared.  Schedule a big hammer to get
 218                          * out of the RISC PAUSED state.
 219                          */
 220                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 221                         RD_REG_WORD(&reg->hccr);
 222
 223                         ha->isp_ops->fw_dump(vha, 1);
 224                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 225                         break;
 226                 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
 227                         break;
 228
 229                 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
 230                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 231                         RD_REG_WORD(&reg->hccr);
 232
 233                         /* Get mailbox data. */
 234                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 235                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 236                                 qla2x00_mbx_completion(vha, mb[0]);
 237                                 status |= MBX_INTERRUPT;
 238                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 239                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 240                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 241                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 242                                 qla2x00_async_event(vha, rsp, mb);
 243                         } else {
 244                                 /*EMPTY*/
 245                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 246                                     "Unrecognized interrupt type (%d).\n",
 247                                     mb[0]);
 248                         }
 249                         /* Release mailbox registers. */
 250                         WRT_REG_WORD(&reg->semaphore, 0);
 251                         RD_REG_WORD(&reg->semaphore);
 252                 } else {
 253                         qla2x00_process_response_queue(rsp);
 254
 255                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 256                         RD_REG_WORD(&reg->hccr);
 257                 }
 258         }
 259         qla2x00_handle_mbx_completion(ha, status);
 260         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 261
 262         return (IRQ_HANDLED);
 263 }
 264
 265 bool
 266 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 267 {
 268         /* Check for PCI disconnection */
 269         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 270                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 271                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 272                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 273                         /*
 274                          * Schedule this (only once) on the default system
 275                          * workqueue so that all the adapter workqueues and the
 276                          * DPC thread can be shutdown cleanly.
 277                          */
 278                         schedule_work(&vha->hw->board_disable);
 279                 }
 280                 return true;
 281         } else
 282                 return false;
 283 }
 284
 285 bool
 286 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 287 {
 288         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 289 }
 290
 291 /**
 292  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 293  * @irq: interrupt number
 294  * @dev_id: SCSI driver HA context
 295  *
 296  * Called by system whenever the host adapter generates an interrupt.
 297  *
 298  * Returns handled flag.
 299  */
 300 irqreturn_t
 301 qla2300_intr_handler(int irq, void *dev_id)
 302 {
 303         scsi_qla_host_t *vha;
 304         struct device_reg_2xxx __iomem *reg;
 305         int             status;
 306         unsigned long   iter;
 307         uint32_t        stat;
 308         uint16_t        hccr;
 309         uint16_t        mb[8];
 310         struct rsp_que *rsp;
 311         struct qla_hw_data *ha;
 312         unsigned long   flags;
 313
 314         rsp = (struct rsp_que *) dev_id;
 315         if (!rsp) {
 316                 ql_log(ql_log_info, NULL, 0x5058,
 317                     "%s: NULL response queue pointer.\n", __func__);
 318                 return (IRQ_NONE);
 319         }
 320
 321         ha = rsp->hw;
 322         reg = &ha->iobase->isp;
 323         status = 0;
 324
 325         spin_lock_irqsave(&ha->hardware_lock, flags);
 326         vha = pci_get_drvdata(ha->pdev);
 327         for (iter = 50; iter--; ) {
 328                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
 329                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 330                         break;
 331                 if (stat & HSR_RISC_PAUSED) {
 332                         if (unlikely(pci_channel_offline(ha->pdev)))
 333                                 break;
 334
 335                         hccr = RD_REG_WORD(&reg->hccr);
 336
 337                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 338                                 ql_log(ql_log_warn, vha, 0x5026,
 339                                     "Parity error -- HCCR=%x, Dumping "
 340                                     "firmware.\n", hccr);
 341                         else
 342                                 ql_log(ql_log_warn, vha, 0x5027,
 343                                     "RISC paused -- HCCR=%x, Dumping "
 344                                     "firmware.\n", hccr);
 345
 346                         /*
 347                          * Issue a "HARD" reset in order for the RISC
 348                          * interrupt bit to be cleared.  Schedule a big
 349                          * hammer to get out of the RISC PAUSED state.
 350                          */
 351                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 352                         RD_REG_WORD(&reg->hccr);
 353
 354                         ha->isp_ops->fw_dump(vha, 1);
 355                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 356                         break;
 357                 } else if ((stat & HSR_RISC_INT) == 0)
 358                         break;
 359
 360                 switch (stat & 0xff) {
 361                 case 0x1:
 362                 case 0x2:
 363                 case 0x10:
 364                 case 0x11:
 365                         qla2x00_mbx_completion(vha, MSW(stat));
 366                         status |= MBX_INTERRUPT;
 367
 368                         /* Release mailbox registers. */
 369                         WRT_REG_WORD(&reg->semaphore, 0);
 370                         break;
 371                 case 0x12:
 372                         mb[0] = MSW(stat);
 373                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 374                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 375                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 376                         qla2x00_async_event(vha, rsp, mb);
 377                         break;
 378                 case 0x13:
 379                         qla2x00_process_response_queue(rsp);
 380                         break;
 381                 case 0x15:
 382                         mb[0] = MBA_CMPLT_1_16BIT;
 383                         mb[1] = MSW(stat);
 384                         qla2x00_async_event(vha, rsp, mb);
 385                         break;
 386                 case 0x16:
 387                         mb[0] = MBA_SCSI_COMPLETION;
 388                         mb[1] = MSW(stat);
 389                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 390                         qla2x00_async_event(vha, rsp, mb);
 391                         break;
 392                 default:
 393                         ql_dbg(ql_dbg_async, vha, 0x5028,
 394                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 395                         break;
 396                 }
 397                 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 398                 RD_REG_WORD_RELAXED(&reg->hccr);
 399         }
 400         qla2x00_handle_mbx_completion(ha, status);
 401         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 402
 403         return (IRQ_HANDLED);
 404 }
 405
 406 /**
 407  * qla2x00_mbx_completion() - Process mailbox command completions.
 408  * @vha: SCSI driver HA context
 409  * @mb0: Mailbox0 register
 410  */
 411 static void
 412 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 413 {
 414         uint16_t        cnt;
 415         uint32_t        mboxes;
 416         uint16_t __iomem *wptr;
 417         struct qla_hw_data *ha = vha->hw;
 418         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 419
 420         /* Read all mbox registers? */
 421         WARN_ON_ONCE(ha->mbx_count > 32);
 422         mboxes = (1ULL << ha->mbx_count) - 1;
 423         if (!ha->mcp)
 424                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 425         else
 426                 mboxes = ha->mcp->in_mb;
 427
 428         /* Load return mailbox registers. */
 429         ha->flags.mbox_int = 1;
 430         ha->mailbox_out[0] = mb0;
 431         mboxes >>= 1;
 432         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 433
 434         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 435                 if (IS_QLA2200(ha) && cnt == 8)
 436                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 437                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 438                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 439                 else if (mboxes & BIT_0)
 440                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 441
 442                 wptr++;
 443                 mboxes >>= 1;
 444         }
 445 }
 446
 447 static void
 448 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 449 {
 450         static char *event[] =
 451                 { "Complete", "Request Notification", "Time Extension" };
 452         int rval;
 453         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 454         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 455         uint16_t __iomem *wptr;
 456         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 457
 458         /* Seed data -- mailbox1 -> mailbox7. */
 459         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 460                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 461         else if (IS_QLA8044(vha->hw))
 462                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 463         else
 464                 return;
 465
 466         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 467                 mb[cnt] = RD_REG_WORD(wptr);
 468
 469         ql_dbg(ql_dbg_async, vha, 0x5021,
 470             "Inter-Driver Communication %s -- "
 471             "%04x %04x %04x %04x %04x %04x %04x.\n",
 472             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 473             mb[4], mb[5], mb[6]);
 474         switch (aen) {
 475         /* Handle IDC Error completion case. */
 476         case MBA_IDC_COMPLETE:
 477                 if (mb[1] >> 15) {
 478                         vha->hw->flags.idc_compl_status = 1;
 479                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 480                                 complete(&vha->hw->dcbx_comp);
 481                 }
 482                 break;
 483
 484         case MBA_IDC_NOTIFY:
 485                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 486                 timeout = (descr >> 8) & 0xf;
 487                 ql_dbg(ql_dbg_async, vha, 0x5022,
 488                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 489                     vha->host_no, event[aen & 0xff], timeout);
 490
 491                 if (!timeout)
 492                         return;
 493                 rval = qla2x00_post_idc_ack_work(vha, mb);
 494                 if (rval != QLA_SUCCESS)
 495                         ql_log(ql_log_warn, vha, 0x5023,
 496                             "IDC failed to post ACK.\n");
 497                 break;
 498         case MBA_IDC_TIME_EXT:
 499                 vha->hw->idc_extend_tmo = descr;
 500                 ql_dbg(ql_dbg_async, vha, 0x5087,
 501                     "%lu Inter-Driver Communication %s -- "
 502                     "Extend timeout by=%d.\n",
 503                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 504                 break;
 505         }
 506 }
 507
 508 #define LS_UNKNOWN      2
 509 const char *
 510 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 511 {
 512         static const char *const link_speeds[] = {
 513                 "1", "2", "?", "4", "8", "16", "32", "10"
 514         };
 515 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 516
 517         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 518                 return link_speeds[0];
 519         else if (speed == 0x13)
 520                 return link_speeds[QLA_LAST_SPEED];
 521         else if (speed < QLA_LAST_SPEED)
 522                 return link_speeds[speed];
 523         else
 524                 return link_speeds[LS_UNKNOWN];
 525 }
 526
 527 static void
 528 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 529 {
 530         struct qla_hw_data *ha = vha->hw;
 531
 532         /*
 533          * 8200 AEN Interpretation:
 534          * mb[0] = AEN code
 535          * mb[1] = AEN Reason code
 536          * mb[2] = LSW of Peg-Halt Status-1 Register
 537          * mb[6] = MSW of Peg-Halt Status-1 Register
 538          * mb[3] = LSW of Peg-Halt Status-2 register
 539          * mb[7] = MSW of Peg-Halt Status-2 register
 540          * mb[4] = IDC Device-State Register value
 541          * mb[5] = IDC Driver-Presence Register value
 542          */
 543         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 544             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 545             mb[0], mb[1], mb[2], mb[6]);
 546         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 547             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 548             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 549
 550         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 551                                 IDC_HEARTBEAT_FAILURE)) {
 552                 ha->flags.nic_core_hung = 1;
 553                 ql_log(ql_log_warn, vha, 0x5060,
 554                     "83XX: F/W Error Reported: Check if reset required.\n");
 555
 556                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 557                         uint32_t protocol_engine_id, fw_err_code, err_level;
 558
 559                         /*
 560                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 561                          *  - PEG-Halt Status-1 Register:
 562                          *      (LSW = mb[2], MSW = mb[6])
 563                          *      Bits 0-7   = protocol-engine ID
 564                          *      Bits 8-28  = f/w error code
 565                          *      Bits 29-31 = Error-level
 566                          *          Error-level 0x1 = Non-Fatal error
 567                          *          Error-level 0x2 = Recoverable Fatal error
 568                          *          Error-level 0x4 = UnRecoverable Fatal error
 569                          *  - PEG-Halt Status-2 Register:
 570                          *      (LSW = mb[3], MSW = mb[7])
 571                          */
 572                         protocol_engine_id = (mb[2] & 0xff);
 573                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 574                             ((mb[6] & 0x1fff) << 8));
 575                         err_level = ((mb[6] & 0xe000) >> 13);
 576                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 577                             "Register: protocol_engine_id=0x%x "
 578                             "fw_err_code=0x%x err_level=0x%x.\n",
 579                             protocol_engine_id, fw_err_code, err_level);
 580                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 581                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 582                         if (err_level == ERR_LEVEL_NON_FATAL) {
 583                                 ql_log(ql_log_warn, vha, 0x5063,
 584                                     "Not a fatal error, f/w has recovered itself.\n");
 585                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 586                                 ql_log(ql_log_fatal, vha, 0x5064,
 587                                     "Recoverable Fatal error: Chip reset "
 588                                     "required.\n");
 589                                 qla83xx_schedule_work(vha,
 590                                     QLA83XX_NIC_CORE_RESET);
 591                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 592                                 ql_log(ql_log_fatal, vha, 0x5065,
 593                                     "Unrecoverable Fatal error: Set FAILED "
 594                                     "state, reboot required.\n");
 595                                 qla83xx_schedule_work(vha,
 596                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 597                         }
 598                 }
 599
 600                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 601                         uint16_t peg_fw_state, nw_interface_link_up;
 602                         uint16_t nw_interface_signal_detect, sfp_status;
 603                         uint16_t htbt_counter, htbt_monitor_enable;
 604                         uint16_t sfp_additional_info, sfp_multirate;
 605                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 606
 607                         /*
 608                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 609                          *  - PEG-to-FC Status Register:
 610                          *      (LSW = mb[2], MSW = mb[6])
 611                          *      Bits 0-7   = Peg-Firmware state
 612                          *      Bit 8      = N/W Interface Link-up
 613                          *      Bit 9      = N/W Interface signal detected
 614                          *      Bits 10-11 = SFP Status
 615                          *        SFP Status 0x0 = SFP+ transceiver not expected
 616                          *        SFP Status 0x1 = SFP+ transceiver not present
 617                          *        SFP Status 0x2 = SFP+ transceiver invalid
 618                          *        SFP Status 0x3 = SFP+ transceiver present and
 619                          *        valid
 620                          *      Bits 12-14 = Heartbeat Counter
 621                          *      Bit 15     = Heartbeat Monitor Enable
 622                          *      Bits 16-17 = SFP Additional Info
 623                          *        SFP info 0x0 = Unregocnized transceiver for
 624                          *        Ethernet
 625                          *        SFP info 0x1 = SFP+ brand validation failed
 626                          *        SFP info 0x2 = SFP+ speed validation failed
 627                          *        SFP info 0x3 = SFP+ access error
 628                          *      Bit 18     = SFP Multirate
 629                          *      Bit 19     = SFP Tx Fault
 630                          *      Bits 20-22 = Link Speed
 631                          *      Bits 23-27 = Reserved
 632                          *      Bits 28-30 = DCBX Status
 633                          *        DCBX Status 0x0 = DCBX Disabled
 634                          *        DCBX Status 0x1 = DCBX Enabled
 635                          *        DCBX Status 0x2 = DCBX Exchange error
 636                          *      Bit 31     = Reserved
 637                          */
 638                         peg_fw_state = (mb[2] & 0x00ff);
 639                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 640                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 641                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 642                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 643                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 644                         sfp_additional_info = (mb[6] & 0x0003);
 645                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 646                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 647                         link_speed = ((mb[6] & 0x0070) >> 4);
 648                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 649
 650                         ql_log(ql_log_warn, vha, 0x5066,
 651                             "Peg-to-Fc Status Register:\n"
 652                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 653                             "nw_interface_signal_detect=0x%x"
 654                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 655                             nw_interface_link_up, nw_interface_signal_detect,
 656                             sfp_status);
 657                         ql_log(ql_log_warn, vha, 0x5067,
 658                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 659                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 660                             htbt_counter, htbt_monitor_enable,
 661                             sfp_additional_info, sfp_multirate);
 662                         ql_log(ql_log_warn, vha, 0x5068,
 663                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 664                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 665                             dcbx_status);
 666
 667                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 668                 }
 669
 670                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 671                         ql_log(ql_log_warn, vha, 0x5069,
 672                             "Heartbeat Failure encountered, chip reset "
 673                             "required.\n");
 674
 675                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 676                 }
 677         }
 678
 679         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 680                 ql_log(ql_log_info, vha, 0x506a,
 681                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 682                 if (ha->flags.nic_core_reset_owner)
 683                         return;
 684                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 685         }
 686 }
 687
 688 int
 689 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 690 {
 691         struct qla_hw_data *ha = vha->hw;
 692         scsi_qla_host_t *vp;
 693         uint32_t vp_did;
 694         unsigned long flags;
 695         int ret = 0;
 696
 697         if (!ha->num_vhosts)
 698                 return ret;
 699
 700         spin_lock_irqsave(&ha->vport_slock, flags);
 701         list_for_each_entry(vp, &ha->vp_list, list) {
 702                 vp_did = vp->d_id.b24;
 703                 if (vp_did == rscn_entry) {
 704                         ret = 1;
 705                         break;
 706                 }
 707         }
 708         spin_unlock_irqrestore(&ha->vport_slock, flags);
 709
 710         return ret;
 711 }
 712
 713 fc_port_t *
 714 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 715 {
 716         fc_port_t *f, *tf;
 717
 718         f = tf = NULL;
 719         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 720                 if (f->loop_id == loop_id)
 721                         return f;
 722         return NULL;
 723 }
 724
 725 fc_port_t *
 726 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 727 {
 728         fc_port_t *f, *tf;
 729
 730         f = tf = NULL;
 731         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 732                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 733                         if (incl_deleted)
 734                                 return f;
 735                         else if (f->deleted == 0)
 736                                 return f;
 737                 }
 738         }
 739         return NULL;
 740 }
 741
 742 fc_port_t *
 743 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 744         u8 incl_deleted)
 745 {
 746         fc_port_t *f, *tf;
 747
 748         f = tf = NULL;
 749         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 750                 if (f->d_id.b24 == id->b24) {
 751                         if (incl_deleted)
 752                                 return f;
 753                         else if (f->deleted == 0)
 754                                 return f;
 755                 }
 756         }
 757         return NULL;
 758 }
 759
 760 /**
 761  * qla2x00_async_event() - Process aynchronous events.
 762  * @vha: SCSI driver HA context
 763  * @rsp: response queue
 764  * @mb: Mailbox registers (0 - 3)
 765  */
 766 void
 767 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 768 {
 769         uint16_t        handle_cnt;
 770         uint16_t        cnt, mbx;
 771         uint32_t        handles[5];
 772         struct qla_hw_data *ha = vha->hw;
 773         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 774         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 775         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 776         uint32_t        rscn_entry, host_pid;
 777         unsigned long   flags;
 778         fc_port_t       *fcport = NULL;
 779
 780         if (!vha->hw->flags.fw_started)
 781                 return;
 782
 783         /* Setup to process RIO completion. */
 784         handle_cnt = 0;
 785         if (IS_CNA_CAPABLE(ha))
 786                 goto skip_rio;
 787         switch (mb[0]) {
 788         case MBA_SCSI_COMPLETION:
 789                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 790                 handle_cnt = 1;
 791                 break;
 792         case MBA_CMPLT_1_16BIT:
 793                 handles[0] = mb[1];
 794                 handle_cnt = 1;
 795                 mb[0] = MBA_SCSI_COMPLETION;
 796                 break;
 797         case MBA_CMPLT_2_16BIT:
 798                 handles[0] = mb[1];
 799                 handles[1] = mb[2];
 800                 handle_cnt = 2;
 801                 mb[0] = MBA_SCSI_COMPLETION;
 802                 break;
 803         case MBA_CMPLT_3_16BIT:
 804                 handles[0] = mb[1];
 805                 handles[1] = mb[2];
 806                 handles[2] = mb[3];
 807                 handle_cnt = 3;
 808                 mb[0] = MBA_SCSI_COMPLETION;
 809                 break;
 810         case MBA_CMPLT_4_16BIT:
 811                 handles[0] = mb[1];
 812                 handles[1] = mb[2];
 813                 handles[2] = mb[3];
 814                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 815                 handle_cnt = 4;
 816                 mb[0] = MBA_SCSI_COMPLETION;
 817                 break;
 818         case MBA_CMPLT_5_16BIT:
 819                 handles[0] = mb[1];
 820                 handles[1] = mb[2];
 821                 handles[2] = mb[3];
 822                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 823                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 824                 handle_cnt = 5;
 825                 mb[0] = MBA_SCSI_COMPLETION;
 826                 break;
 827         case MBA_CMPLT_2_32BIT:
 828                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 829                 handles[1] = le32_to_cpu(
 830                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 831                     RD_MAILBOX_REG(ha, reg, 6));
 832                 handle_cnt = 2;
 833                 mb[0] = MBA_SCSI_COMPLETION;
 834                 break;
 835         default:
 836                 break;
 837         }
 838 skip_rio:
 839         switch (mb[0]) {
 840         case MBA_SCSI_COMPLETION:       /* Fast Post */
 841                 if (!vha->flags.online)
 842                         break;
 843
 844                 for (cnt = 0; cnt < handle_cnt; cnt++)
 845                         qla2x00_process_completed_request(vha, rsp->req,
 846                                 handles[cnt]);
 847                 break;
 848
 849         case MBA_RESET:                 /* Reset */
 850                 ql_dbg(ql_dbg_async, vha, 0x5002,
 851                     "Asynchronous RESET.\n");
 852
 853                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 854                 break;
 855
 856         case MBA_SYSTEM_ERR:            /* System Error */
 857                 mbx = 0;
 858                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
 859                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
 860                         u16 m[4];
 861
 862                         m[0] = RD_REG_WORD(&reg24->mailbox4);
 863                         m[1] = RD_REG_WORD(&reg24->mailbox5);
 864                         m[2] = RD_REG_WORD(&reg24->mailbox6);
 865                         mbx = m[3] = RD_REG_WORD(&reg24->mailbox7);
 866
 867                         ql_log(ql_log_warn, vha, 0x5003,
 868                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
 869                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
 870                 } else
 871                         ql_log(ql_log_warn, vha, 0x5003,
 872                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
 873                             mb[1], mb[2], mb[3]);
 874
 875                 ha->fw_dump_mpi =
 876                     (IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
 877                     RD_REG_WORD(&reg24->mailbox7) & BIT_8;
 878                 ha->isp_ops->fw_dump(vha, 1);
 879                 ha->flags.fw_init_done = 0;
 880                 QLA_FW_STOPPED(ha);
 881
 882                 if (IS_FWI2_CAPABLE(ha)) {
 883                         if (mb[1] == 0 && mb[2] == 0) {
 884                                 ql_log(ql_log_fatal, vha, 0x5004,
 885                                     "Unrecoverable Hardware Error: adapter "
 886                                     "marked OFFLINE!\n");
 887                                 vha->flags.online = 0;
 888                                 vha->device_flags |= DFLG_DEV_FAILED;
 889                         } else {
 890                                 /* Check to see if MPI timeout occurred */
 891                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 892                                         set_bit(MPI_RESET_NEEDED,
 893                                             &vha->dpc_flags);
 894
 895                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 896                         }
 897                 } else if (mb[1] == 0) {
 898                         ql_log(ql_log_fatal, vha, 0x5005,
 899                             "Unrecoverable Hardware Error: adapter marked "
 900                             "OFFLINE!\n");
 901                         vha->flags.online = 0;
 902                         vha->device_flags |= DFLG_DEV_FAILED;
 903                 } else
 904                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 905                 break;
 906
 907         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 908                 ql_log(ql_log_warn, vha, 0x5006,
 909                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 910
 911                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 912                 break;
 913
 914         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 915                 ql_log(ql_log_warn, vha, 0x5007,
 916                     "ISP Response Transfer Error (%x).\n", mb[1]);
 917
 918                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 919                 break;
 920
 921         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 922                 ql_dbg(ql_dbg_async, vha, 0x5008,
 923                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 924                 break;
 925
 926         case MBA_LOOP_INIT_ERR:
 927                 ql_log(ql_log_warn, vha, 0x5090,
 928                     "LOOP INIT ERROR (%x).\n", mb[1]);
 929                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 930                 break;
 931
 932         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 933                 ha->flags.lip_ae = 1;
 934
 935                 ql_dbg(ql_dbg_async, vha, 0x5009,
 936                     "LIP occurred (%x).\n", mb[1]);
 937
 938                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 939                         atomic_set(&vha->loop_state, LOOP_DOWN);
 940                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 941                         qla2x00_mark_all_devices_lost(vha);
 942                 }
 943
 944                 if (vha->vp_idx) {
 945                         atomic_set(&vha->vp_state, VP_FAILED);
 946                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 947                 }
 948
 949                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 950                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 951
 952                 vha->flags.management_server_logged_in = 0;
 953                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 954                 break;
 955
 956         case MBA_LOOP_UP:               /* Loop Up Event */
 957                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 958                         ha->link_data_rate = PORT_SPEED_1GB;
 959                 else
 960                         ha->link_data_rate = mb[1];
 961
 962                 ql_log(ql_log_info, vha, 0x500a,
 963                     "LOOP UP detected (%s Gbps).\n",
 964                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 965
 966                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
 967                         if (mb[2] & BIT_0)
 968                                 ql_log(ql_log_info, vha, 0x11a0,
 969                                     "FEC=enabled (link up).\n");
 970                 }
 971
 972                 vha->flags.management_server_logged_in = 0;
 973                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 974
 975                 break;
 976
 977         case MBA_LOOP_DOWN:             /* Loop Down Event */
 978                 SAVE_TOPO(ha);
 979                 ha->flags.lip_ae = 0;
 980                 ha->current_topology = 0;
 981
 982                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 983                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 984                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 985                         : mbx;
 986                 ql_log(ql_log_info, vha, 0x500b,
 987                     "LOOP DOWN detected (%x %x %x %x).\n",
 988                     mb[1], mb[2], mb[3], mbx);
 989
 990                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 991                         atomic_set(&vha->loop_state, LOOP_DOWN);
 992                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 993                         /*
 994                          * In case of loop down, restore WWPN from
 995                          * NVRAM in case of FA-WWPN capable ISP
 996                          * Restore for Physical Port only
 997                          */
 998                         if (!vha->vp_idx) {
 999                                 if (ha->flags.fawwpn_enabled &&
1000                                     (ha->current_topology == ISP_CFG_F)) {
1001                                         void *wwpn = ha->init_cb->port_name;
1002
1003                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
1004                                         fc_host_port_name(vha->host) =
1005                                             wwn_to_u64(vha->port_name);
1006                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1007                                             vha, 0x00d8, "LOOP DOWN detected,"
1008                                             "restore WWPN %016llx\n",
1009                                             wwn_to_u64(vha->port_name));
1010                                 }
1011
1012                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1013                         }
1014
1015                         vha->device_flags |= DFLG_NO_CABLE;
1016                         qla2x00_mark_all_devices_lost(vha);
1017                 }
1018
1019                 if (vha->vp_idx) {
1020                         atomic_set(&vha->vp_state, VP_FAILED);
1021                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1022                 }
1023
1024                 vha->flags.management_server_logged_in = 0;
1025                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1026                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1027                 break;
1028
1029         case MBA_LIP_RESET:             /* LIP reset occurred */
1030                 ql_dbg(ql_dbg_async, vha, 0x500c,
1031                     "LIP reset occurred (%x).\n", mb[1]);
1032
1033                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1034                         atomic_set(&vha->loop_state, LOOP_DOWN);
1035                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1036                         qla2x00_mark_all_devices_lost(vha);
1037                 }
1038
1039                 if (vha->vp_idx) {
1040                         atomic_set(&vha->vp_state, VP_FAILED);
1041                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1042                 }
1043
1044                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1045
1046                 ha->operating_mode = LOOP;
1047                 vha->flags.management_server_logged_in = 0;
1048                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1049                 break;
1050
1051         /* case MBA_DCBX_COMPLETE: */
1052         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1053                 ha->flags.lip_ae = 0;
1054
1055                 if (IS_QLA2100(ha))
1056                         break;
1057
1058                 if (IS_CNA_CAPABLE(ha)) {
1059                         ql_dbg(ql_dbg_async, vha, 0x500d,
1060                             "DCBX Completed -- %04x %04x %04x.\n",
1061                             mb[1], mb[2], mb[3]);
1062                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1063                                 complete(&ha->dcbx_comp);
1064
1065                 } else
1066                         ql_dbg(ql_dbg_async, vha, 0x500e,
1067                             "Asynchronous P2P MODE received.\n");
1068
1069                 /*
1070                  * Until there's a transition from loop down to loop up, treat
1071                  * this as loop down only.
1072                  */
1073                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1074                         atomic_set(&vha->loop_state, LOOP_DOWN);
1075                         if (!atomic_read(&vha->loop_down_timer))
1076                                 atomic_set(&vha->loop_down_timer,
1077                                     LOOP_DOWN_TIME);
1078                         if (!N2N_TOPO(ha))
1079                                 qla2x00_mark_all_devices_lost(vha);
1080                 }
1081
1082                 if (vha->vp_idx) {
1083                         atomic_set(&vha->vp_state, VP_FAILED);
1084                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1085                 }
1086
1087                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1088                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1089
1090                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1091                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1092
1093                 vha->flags.management_server_logged_in = 0;
1094                 break;
1095
1096         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1097                 if (IS_QLA2100(ha))
1098                         break;
1099
1100                 ql_dbg(ql_dbg_async, vha, 0x500f,
1101                     "Configuration change detected: value=%x.\n", mb[1]);
1102
1103                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1104                         atomic_set(&vha->loop_state, LOOP_DOWN);
1105                         if (!atomic_read(&vha->loop_down_timer))
1106                                 atomic_set(&vha->loop_down_timer,
1107                                     LOOP_DOWN_TIME);
1108                         qla2x00_mark_all_devices_lost(vha);
1109                 }
1110
1111                 if (vha->vp_idx) {
1112                         atomic_set(&vha->vp_state, VP_FAILED);
1113                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1114                 }
1115
1116                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1117                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1118                 break;
1119
1120         case MBA_PORT_UPDATE:           /* Port database update */
1121                 /*
1122                  * Handle only global and vn-port update events
1123                  *
1124                  * Relevant inputs:
1125                  * mb[1] = N_Port handle of changed port
1126                  * OR 0xffff for global event
1127                  * mb[2] = New login state
1128                  * 7 = Port logged out
1129                  * mb[3] = LSB is vp_idx, 0xff = all vps
1130                  *
1131                  * Skip processing if:
1132                  *       Event is global, vp_idx is NOT all vps,
1133                  *           vp_idx does not match
1134                  *       Event is not global, vp_idx does not match
1135                  */
1136                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1137                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1138                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1139                         break;
1140
1141                 if (mb[2] == 0x7) {
1142                         ql_dbg(ql_dbg_async, vha, 0x5010,
1143                             "Port %s %04x %04x %04x.\n",
1144                             mb[1] == 0xffff ? "unavailable" : "logout",
1145                             mb[1], mb[2], mb[3]);
1146
1147                         if (mb[1] == 0xffff)
1148                                 goto global_port_update;
1149
1150                         if (mb[1] == NPH_SNS_LID(ha)) {
1151                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1152                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1153                                 break;
1154                         }
1155
1156                         /* use handle_cnt for loop id/nport handle */
1157                         if (IS_FWI2_CAPABLE(ha))
1158                                 handle_cnt = NPH_SNS;
1159                         else
1160                                 handle_cnt = SIMPLE_NAME_SERVER;
1161                         if (mb[1] == handle_cnt) {
1162                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1163                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1164                                 break;
1165                         }
1166
1167                         /* Port logout */
1168                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1169                         if (!fcport)
1170                                 break;
1171                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1172                                 break;
1173                         ql_dbg(ql_dbg_async, vha, 0x508a,
1174                             "Marking port lost loopid=%04x portid=%06x.\n",
1175                             fcport->loop_id, fcport->d_id.b24);
1176                         if (qla_ini_mode_enabled(vha)) {
1177                                 fcport->logout_on_delete = 0;
1178                                 qlt_schedule_sess_for_deletion(fcport);
1179                         }
1180                         break;
1181
1182 global_port_update:
1183                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1184                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1185                                 atomic_set(&vha->loop_down_timer,
1186                                     LOOP_DOWN_TIME);
1187                                 vha->device_flags |= DFLG_NO_CABLE;
1188                                 qla2x00_mark_all_devices_lost(vha);
1189                         }
1190
1191                         if (vha->vp_idx) {
1192                                 atomic_set(&vha->vp_state, VP_FAILED);
1193                                 fc_vport_set_state(vha->fc_vport,
1194                                     FC_VPORT_FAILED);
1195                                 qla2x00_mark_all_devices_lost(vha);
1196                         }
1197
1198                         vha->flags.management_server_logged_in = 0;
1199                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1200                         break;
1201                 }
1202
1203                 /*
1204                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1205                  * event etc. earlier indicating loop is down) then process
1206                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1207                  */
1208                 atomic_set(&vha->loop_down_timer, 0);
1209                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1210                         !ha->flags.n2n_ae  &&
1211                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1212                         ql_dbg(ql_dbg_async, vha, 0x5011,
1213                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1214                             mb[1], mb[2], mb[3]);
1215                         break;
1216                 }
1217
1218                 ql_dbg(ql_dbg_async, vha, 0x5012,
1219                     "Port database changed %04x %04x %04x.\n",
1220                     mb[1], mb[2], mb[3]);
1221
1222                 /*
1223                  * Mark all devices as missing so we will login again.
1224                  */
1225                 atomic_set(&vha->loop_state, LOOP_UP);
1226                 vha->scan.scan_retry = 0;
1227
1228                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1229                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1230                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1231                 break;
1232
1233         case MBA_RSCN_UPDATE:           /* State Change Registration */
1234                 /* Check if the Vport has issued a SCR */
1235                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1236                         break;
1237                 /* Only handle SCNs for our Vport index. */
1238                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1239                         break;
1240
1241                 ql_dbg(ql_dbg_async, vha, 0x5013,
1242                     "RSCN database changed -- %04x %04x %04x.\n",
1243                     mb[1], mb[2], mb[3]);
1244
1245                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1246                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1247                                 | vha->d_id.b.al_pa;
1248                 if (rscn_entry == host_pid) {
1249                         ql_dbg(ql_dbg_async, vha, 0x5014,
1250                             "Ignoring RSCN update to local host "
1251                             "port ID (%06x).\n", host_pid);
1252                         break;
1253                 }
1254
1255                 /* Ignore reserved bits from RSCN-payload. */
1256                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1257
1258                 /* Skip RSCNs for virtual ports on the same physical port */
1259                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1260                         break;
1261
1262                 atomic_set(&vha->loop_down_timer, 0);
1263                 vha->flags.management_server_logged_in = 0;
1264                 {
1265                         struct event_arg ea;
1266
1267                         memset(&ea, 0, sizeof(ea));
1268                         ea.id.b24 = rscn_entry;
1269                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1270                         qla2x00_handle_rscn(vha, &ea);
1271                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1272                 }
1273                 break;
1274         /* case MBA_RIO_RESPONSE: */
1275         case MBA_ZIO_RESPONSE:
1276                 ql_dbg(ql_dbg_async, vha, 0x5015,
1277                     "[R|Z]IO update completion.\n");
1278
1279                 if (IS_FWI2_CAPABLE(ha))
1280                         qla24xx_process_response_queue(vha, rsp);
1281                 else
1282                         qla2x00_process_response_queue(rsp);
1283                 break;
1284
1285         case MBA_DISCARD_RND_FRAME:
1286                 ql_dbg(ql_dbg_async, vha, 0x5016,
1287                     "Discard RND Frame -- %04x %04x %04x.\n",
1288                     mb[1], mb[2], mb[3]);
1289                 break;
1290
1291         case MBA_TRACE_NOTIFICATION:
1292                 ql_dbg(ql_dbg_async, vha, 0x5017,
1293                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1294                 break;
1295
1296         case MBA_ISP84XX_ALERT:
1297                 ql_dbg(ql_dbg_async, vha, 0x5018,
1298                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1299                     mb[1], mb[2], mb[3]);
1300
1301                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1302                 switch (mb[1]) {
1303                 case A84_PANIC_RECOVERY:
1304                         ql_log(ql_log_info, vha, 0x5019,
1305                             "Alert 84XX: panic recovery %04x %04x.\n",
1306                             mb[2], mb[3]);
1307                         break;
1308                 case A84_OP_LOGIN_COMPLETE:
1309                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1310                         ql_log(ql_log_info, vha, 0x501a,
1311                             "Alert 84XX: firmware version %x.\n",
1312                             ha->cs84xx->op_fw_version);
1313                         break;
1314                 case A84_DIAG_LOGIN_COMPLETE:
1315                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1316                         ql_log(ql_log_info, vha, 0x501b,
1317                             "Alert 84XX: diagnostic firmware version %x.\n",
1318                             ha->cs84xx->diag_fw_version);
1319                         break;
1320                 case A84_GOLD_LOGIN_COMPLETE:
1321                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1322                         ha->cs84xx->fw_update = 1;
1323                         ql_log(ql_log_info, vha, 0x501c,
1324                             "Alert 84XX: gold firmware version %x.\n",
1325                             ha->cs84xx->gold_fw_version);
1326                         break;
1327                 default:
1328                         ql_log(ql_log_warn, vha, 0x501d,
1329                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1330                             mb[1], mb[2], mb[3]);
1331                 }
1332                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1333                 break;
1334         case MBA_DCBX_START:
1335                 ql_dbg(ql_dbg_async, vha, 0x501e,
1336                     "DCBX Started -- %04x %04x %04x.\n",
1337                     mb[1], mb[2], mb[3]);
1338                 break;
1339         case MBA_DCBX_PARAM_UPDATE:
1340                 ql_dbg(ql_dbg_async, vha, 0x501f,
1341                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1342                     mb[1], mb[2], mb[3]);
1343                 break;
1344         case MBA_FCF_CONF_ERR:
1345                 ql_dbg(ql_dbg_async, vha, 0x5020,
1346                     "FCF Configuration Error -- %04x %04x %04x.\n",
1347                     mb[1], mb[2], mb[3]);
1348                 break;
1349         case MBA_IDC_NOTIFY:
1350                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1351                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1352                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1353                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1354                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1355                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1356                                 /*
1357                                  * Extend loop down timer since port is active.
1358                                  */
1359                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1360                                         atomic_set(&vha->loop_down_timer,
1361                                             LOOP_DOWN_TIME);
1362                                 qla2xxx_wake_dpc(vha);
1363                         }
1364                 }
1365                 /* fall through */
1366         case MBA_IDC_COMPLETE:
1367                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1368                         complete(&ha->lb_portup_comp);
1369                 /* Fallthru */
1370         case MBA_IDC_TIME_EXT:
1371                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1372                     IS_QLA8044(ha))
1373                         qla81xx_idc_event(vha, mb[0], mb[1]);
1374                 break;
1375
1376         case MBA_IDC_AEN:
1377                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1378                         ha->flags.fw_init_done = 0;
1379                         ql_log(ql_log_warn, vha, 0xffff,
1380                             "MPI Heartbeat stop. Chip reset needed. MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
1381                             mb[0], mb[1], mb[2], mb[3]);
1382
1383                         if ((mb[1] & BIT_8) ||
1384                             (mb[2] & BIT_8)) {
1385                                 ql_log(ql_log_warn, vha, 0xd013,
1386                                     "MPI Heartbeat stop. FW dump needed\n");
1387                                 ha->fw_dump_mpi = 1;
1388                                 ha->isp_ops->fw_dump(vha, 1);
1389                         }
1390                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1391                         qla2xxx_wake_dpc(vha);
1392                 } else if (IS_QLA83XX(ha)) {
1393                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1394                         mb[5] = RD_REG_WORD(&reg24->mailbox5);
1395                         mb[6] = RD_REG_WORD(&reg24->mailbox6);
1396                         mb[7] = RD_REG_WORD(&reg24->mailbox7);
1397                         qla83xx_handle_8200_aen(vha, mb);
1398                 } else {
1399                         ql_dbg(ql_dbg_async, vha, 0x5052,
1400                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1401                             mb[0], mb[1], mb[2], mb[3]);
1402                 }
1403                 break;
1404
1405         case MBA_DPORT_DIAGNOSTICS:
1406                 ql_dbg(ql_dbg_async, vha, 0x5052,
1407                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1408                     mb[0], mb[1], mb[2], mb[3]);
1409                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1410                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1411                         static char *results[] = {
1412                             "start", "done(pass)", "done(error)", "undefined" };
1413                         static char *types[] = {
1414                             "none", "dynamic", "static", "other" };
1415                         uint result = mb[1] >> 0 & 0x3;
1416                         uint type = mb[1] >> 6 & 0x3;
1417                         uint sw = mb[1] >> 15 & 0x1;
1418                         ql_dbg(ql_dbg_async, vha, 0x5052,
1419                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1420                             results[result], types[type], sw);
1421                         if (result == 2) {
1422                                 static char *reasons[] = {
1423                                     "reserved", "unexpected reject",
1424                                     "unexpected phase", "retry exceeded",
1425                                     "timed out", "not supported",
1426                                     "user stopped" };
1427                                 uint reason = mb[2] >> 0 & 0xf;
1428                                 uint phase = mb[2] >> 12 & 0xf;
1429                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1430                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1431                                     reason < 7 ? reasons[reason] : "other",
1432                                     phase >> 1);
1433                         }
1434                 }
1435                 break;
1436
1437         case MBA_TEMPERATURE_ALERT:
1438                 ql_dbg(ql_dbg_async, vha, 0x505e,
1439                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1440                 if (mb[1] == 0x12)
1441                         schedule_work(&ha->board_disable);
1442                 break;
1443
1444         case MBA_TRANS_INSERT:
1445                 ql_dbg(ql_dbg_async, vha, 0x5091,
1446                     "Transceiver Insertion: %04x\n", mb[1]);
1447                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1448                 break;
1449
1450         case MBA_TRANS_REMOVE:
1451                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1452                 break;
1453
1454         default:
1455                 ql_dbg(ql_dbg_async, vha, 0x5057,
1456                     "Unknown AEN:%04x %04x %04x %04x\n",
1457                     mb[0], mb[1], mb[2], mb[3]);
1458         }
1459
1460         qlt_async_event(mb[0], vha, mb);
1461
1462         if (!vha->vp_idx && ha->num_vhosts)
1463                 qla2x00_alert_all_vps(rsp, mb);
1464 }
1465
1466 /**
1467  * qla2x00_process_completed_request() - Process a Fast Post response.
1468  * @vha: SCSI driver HA context
1469  * @req: request queue
1470  * @index: SRB index
1471  */
1472 void
1473 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1474                                   struct req_que *req, uint32_t index)
1475 {
1476         srb_t *sp;
1477         struct qla_hw_data *ha = vha->hw;
1478
1479         /* Validate handle. */
1480         if (index >= req->num_outstanding_cmds) {
1481                 ql_log(ql_log_warn, vha, 0x3014,
1482                     "Invalid SCSI command index (%x).\n", index);
1483
1484                 if (IS_P3P_TYPE(ha))
1485                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1486                 else
1487                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1488                 return;
1489         }
1490
1491         sp = req->outstanding_cmds[index];
1492         if (sp) {
1493                 /* Free outstanding command slot. */
1494                 req->outstanding_cmds[index] = NULL;
1495
1496                 /* Save ISP completion status */
1497                 sp->done(sp, DID_OK << 16);
1498         } else {
1499                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1500
1501                 if (IS_P3P_TYPE(ha))
1502                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1503                 else
1504                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1505         }
1506 }
1507
1508 srb_t *
1509 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1510     struct req_que *req, void *iocb)
1511 {
1512         struct qla_hw_data *ha = vha->hw;
1513         sts_entry_t *pkt = iocb;
1514         srb_t *sp = NULL;
1515         uint16_t index;
1516
1517         index = LSW(pkt->handle);
1518         if (index >= req->num_outstanding_cmds) {
1519                 ql_log(ql_log_warn, vha, 0x5031,
1520                            "Invalid command index (%x) type %8ph.\n",
1521                            index, iocb);
1522                 if (IS_P3P_TYPE(ha))
1523                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1524                 else
1525                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1526                 goto done;
1527         }
1528         sp = req->outstanding_cmds[index];
1529         if (!sp) {
1530                 ql_log(ql_log_warn, vha, 0x5032,
1531                     "Invalid completion handle (%x) -- timed-out.\n", index);
1532                 return sp;
1533         }
1534         if (sp->handle != index) {
1535                 ql_log(ql_log_warn, vha, 0x5033,
1536                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1537                 return NULL;
1538         }
1539
1540         req->outstanding_cmds[index] = NULL;
1541
1542 done:
1543         return sp;
1544 }
1545
1546 static void
1547 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1548     struct mbx_entry *mbx)
1549 {
1550         const char func[] = "MBX-IOCB";
1551         const char *type;
1552         fc_port_t *fcport;
1553         srb_t *sp;
1554         struct srb_iocb *lio;
1555         uint16_t *data;
1556         uint16_t status;
1557
1558         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1559         if (!sp)
1560                 return;
1561
1562         lio = &sp->u.iocb_cmd;
1563         type = sp->name;
1564         fcport = sp->fcport;
1565         data = lio->u.logio.data;
1566
1567         data[0] = MBS_COMMAND_ERROR;
1568         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1569             QLA_LOGIO_LOGIN_RETRIED : 0;
1570         if (mbx->entry_status) {
1571                 ql_dbg(ql_dbg_async, vha, 0x5043,
1572                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1573                     "entry-status=%x status=%x state-flag=%x "
1574                     "status-flags=%x.\n", type, sp->handle,
1575                     fcport->d_id.b.domain, fcport->d_id.b.area,
1576                     fcport->d_id.b.al_pa, mbx->entry_status,
1577                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1578                     le16_to_cpu(mbx->status_flags));
1579
1580                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1581                     mbx, sizeof(*mbx));
1582
1583                 goto logio_done;
1584         }
1585
1586         status = le16_to_cpu(mbx->status);
1587         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1588             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1589                 status = 0;
1590         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1591                 ql_dbg(ql_dbg_async, vha, 0x5045,
1592                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1593                     type, sp->handle, fcport->d_id.b.domain,
1594                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1595                     le16_to_cpu(mbx->mb1));
1596
1597                 data[0] = MBS_COMMAND_COMPLETE;
1598                 if (sp->type == SRB_LOGIN_CMD) {
1599                         fcport->port_type = FCT_TARGET;
1600                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1601                                 fcport->port_type = FCT_INITIATOR;
1602                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1603                                 fcport->flags |= FCF_FCP2_DEVICE;
1604                 }
1605                 goto logio_done;
1606         }
1607
1608         data[0] = le16_to_cpu(mbx->mb0);
1609         switch (data[0]) {
1610         case MBS_PORT_ID_USED:
1611                 data[1] = le16_to_cpu(mbx->mb1);
1612                 break;
1613         case MBS_LOOP_ID_USED:
1614                 break;
1615         default:
1616                 data[0] = MBS_COMMAND_ERROR;
1617                 break;
1618         }
1619
1620         ql_log(ql_log_warn, vha, 0x5046,
1621             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1622             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1623             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1624             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1625             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1626             le16_to_cpu(mbx->mb7));
1627
1628 logio_done:
1629         sp->done(sp, 0);
1630 }
1631
1632 static void
1633 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1634     struct mbx_24xx_entry *pkt)
1635 {
1636         const char func[] = "MBX-IOCB2";
1637         srb_t *sp;
1638         struct srb_iocb *si;
1639         u16 sz, i;
1640         int res;
1641
1642         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1643         if (!sp)
1644                 return;
1645
1646         si = &sp->u.iocb_cmd;
1647         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1648
1649         for (i = 0; i < sz; i++)
1650                 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1651
1652         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1653
1654         sp->done(sp, res);
1655 }
1656
1657 static void
1658 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1659     struct nack_to_isp *pkt)
1660 {
1661         const char func[] = "nack";
1662         srb_t *sp;
1663         int res = 0;
1664
1665         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1666         if (!sp)
1667                 return;
1668
1669         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1670                 res = QLA_FUNCTION_FAILED;
1671
1672         sp->done(sp, res);
1673 }
1674
1675 static void
1676 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1677     sts_entry_t *pkt, int iocb_type)
1678 {
1679         const char func[] = "CT_IOCB";
1680         const char *type;
1681         srb_t *sp;
1682         struct bsg_job *bsg_job;
1683         struct fc_bsg_reply *bsg_reply;
1684         uint16_t comp_status;
1685         int res = 0;
1686
1687         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1688         if (!sp)
1689                 return;
1690
1691         switch (sp->type) {
1692         case SRB_CT_CMD:
1693             bsg_job = sp->u.bsg_job;
1694             bsg_reply = bsg_job->reply;
1695
1696             type = "ct pass-through";
1697
1698             comp_status = le16_to_cpu(pkt->comp_status);
1699
1700             /*
1701              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1702              * fc payload  to the caller
1703              */
1704             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1705             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1706
1707             if (comp_status != CS_COMPLETE) {
1708                     if (comp_status == CS_DATA_UNDERRUN) {
1709                             res = DID_OK << 16;
1710                             bsg_reply->reply_payload_rcv_len =
1711                                 le16_to_cpu(pkt->rsp_info_len);
1712
1713                             ql_log(ql_log_warn, vha, 0x5048,
1714                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1715                                 type, comp_status,
1716                                 bsg_reply->reply_payload_rcv_len);
1717                     } else {
1718                             ql_log(ql_log_warn, vha, 0x5049,
1719                                 "CT pass-through-%s error comp_status=0x%x.\n",
1720                                 type, comp_status);
1721                             res = DID_ERROR << 16;
1722                             bsg_reply->reply_payload_rcv_len = 0;
1723                     }
1724                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1725                         pkt, sizeof(*pkt));
1726             } else {
1727                     res = DID_OK << 16;
1728                     bsg_reply->reply_payload_rcv_len =
1729                         bsg_job->reply_payload.payload_len;
1730                     bsg_job->reply_len = 0;
1731             }
1732             break;
1733         case SRB_CT_PTHRU_CMD:
1734             /*
1735              * borrowing sts_entry_24xx.comp_status.
1736              * same location as ct_entry_24xx.comp_status
1737              */
1738              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1739                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1740                  sp->name);
1741              break;
1742         }
1743
1744         sp->done(sp, res);
1745 }
1746
1747 static void
1748 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1749     struct sts_entry_24xx *pkt, int iocb_type)
1750 {
1751         const char func[] = "ELS_CT_IOCB";
1752         const char *type;
1753         srb_t *sp;
1754         struct bsg_job *bsg_job;
1755         struct fc_bsg_reply *bsg_reply;
1756         uint16_t comp_status;
1757         uint32_t fw_status[3];
1758         int res;
1759         struct srb_iocb *els;
1760
1761         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1762         if (!sp)
1763                 return;
1764
1765         type = NULL;
1766         switch (sp->type) {
1767         case SRB_ELS_CMD_RPT:
1768         case SRB_ELS_CMD_HST:
1769                 type = "els";
1770                 break;
1771         case SRB_CT_CMD:
1772                 type = "ct pass-through";
1773                 break;
1774         case SRB_ELS_DCMD:
1775                 type = "Driver ELS logo";
1776                 if (iocb_type != ELS_IOCB_TYPE) {
1777                         ql_dbg(ql_dbg_user, vha, 0x5047,
1778                             "Completing %s: (%p) type=%d.\n",
1779                             type, sp, sp->type);
1780                         sp->done(sp, 0);
1781                         return;
1782                 }
1783                 break;
1784         case SRB_CT_PTHRU_CMD:
1785                 /* borrowing sts_entry_24xx.comp_status.
1786                    same location as ct_entry_24xx.comp_status
1787                  */
1788                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1789                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1790                         sp->name);
1791                 sp->done(sp, res);
1792                 return;
1793         default:
1794                 ql_dbg(ql_dbg_user, vha, 0x503e,
1795                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1796                 return;
1797         }
1798
1799         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1800         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
1801         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
1802
1803         if (iocb_type == ELS_IOCB_TYPE) {
1804                 els = &sp->u.iocb_cmd;
1805                 els->u.els_plogi.fw_status[0] = fw_status[0];
1806                 els->u.els_plogi.fw_status[1] = fw_status[1];
1807                 els->u.els_plogi.fw_status[2] = fw_status[2];
1808                 els->u.els_plogi.comp_status = fw_status[0];
1809                 if (comp_status == CS_COMPLETE) {
1810                         res =  DID_OK << 16;
1811                 } else {
1812                         if (comp_status == CS_DATA_UNDERRUN) {
1813                                 res =  DID_OK << 16;
1814                                 els->u.els_plogi.len =
1815                                 le16_to_cpu(((struct els_sts_entry_24xx *)
1816                                         pkt)->total_byte_count);
1817                         } else {
1818                                 els->u.els_plogi.len = 0;
1819                                 res = DID_ERROR << 16;
1820                         }
1821                 }
1822                 ql_dbg(ql_dbg_user, vha, 0x503f,
1823                     "ELS IOCB Done -%s error hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
1824                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
1825                     le16_to_cpu(((struct els_sts_entry_24xx *)
1826                         pkt)->total_byte_count));
1827                 goto els_ct_done;
1828         }
1829
1830         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1831          * fc payload  to the caller
1832          */
1833         bsg_job = sp->u.bsg_job;
1834         bsg_reply = bsg_job->reply;
1835         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1836         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1837
1838         if (comp_status != CS_COMPLETE) {
1839                 if (comp_status == CS_DATA_UNDERRUN) {
1840                         res = DID_OK << 16;
1841                         bsg_reply->reply_payload_rcv_len =
1842                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1843
1844                         ql_dbg(ql_dbg_user, vha, 0x503f,
1845                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1846                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1847                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1848                             le16_to_cpu(((struct els_sts_entry_24xx *)
1849                                 pkt)->total_byte_count));
1850                 } else {
1851                         ql_dbg(ql_dbg_user, vha, 0x5040,
1852                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1853                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1854                             type, sp->handle, comp_status,
1855                             le16_to_cpu(((struct els_sts_entry_24xx *)
1856                                 pkt)->error_subcode_1),
1857                             le16_to_cpu(((struct els_sts_entry_24xx *)
1858                                     pkt)->error_subcode_2));
1859                         res = DID_ERROR << 16;
1860                         bsg_reply->reply_payload_rcv_len = 0;
1861                 }
1862                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
1863                        fw_status, sizeof(fw_status));
1864                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1865                     pkt, sizeof(*pkt));
1866         }
1867         else {
1868                 res =  DID_OK << 16;
1869                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1870                 bsg_job->reply_len = 0;
1871         }
1872 els_ct_done:
1873
1874         sp->done(sp, res);
1875 }
1876
1877 static void
1878 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1879     struct logio_entry_24xx *logio)
1880 {
1881         const char func[] = "LOGIO-IOCB";
1882         const char *type;
1883         fc_port_t *fcport;
1884         srb_t *sp;
1885         struct srb_iocb *lio;
1886         uint16_t *data;
1887         uint32_t iop[2];
1888
1889         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1890         if (!sp)
1891                 return;
1892
1893         lio = &sp->u.iocb_cmd;
1894         type = sp->name;
1895         fcport = sp->fcport;
1896         data = lio->u.logio.data;
1897
1898         data[0] = MBS_COMMAND_ERROR;
1899         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1900                 QLA_LOGIO_LOGIN_RETRIED : 0;
1901         if (logio->entry_status) {
1902                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1903                     "Async-%s error entry - %8phC hdl=%x"
1904                     "portid=%02x%02x%02x entry-status=%x.\n",
1905                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1906                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1907                     logio->entry_status);
1908                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1909                     logio, sizeof(*logio));
1910
1911                 goto logio_done;
1912         }
1913
1914         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1915                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
1916                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
1917                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
1918                     le32_to_cpu(logio->io_parameter[0]));
1919
1920                 vha->hw->exch_starvation = 0;
1921                 data[0] = MBS_COMMAND_COMPLETE;
1922
1923                 if (sp->type == SRB_PRLI_CMD) {
1924                         lio->u.logio.iop[0] =
1925                             le32_to_cpu(logio->io_parameter[0]);
1926                         lio->u.logio.iop[1] =
1927                             le32_to_cpu(logio->io_parameter[1]);
1928                         goto logio_done;
1929                 }
1930
1931                 if (sp->type != SRB_LOGIN_CMD)
1932                         goto logio_done;
1933
1934                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1935                 if (iop[0] & BIT_4) {
1936                         fcport->port_type = FCT_TARGET;
1937                         if (iop[0] & BIT_8)
1938                                 fcport->flags |= FCF_FCP2_DEVICE;
1939                 } else if (iop[0] & BIT_5)
1940                         fcport->port_type = FCT_INITIATOR;
1941
1942                 if (iop[0] & BIT_7)
1943                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1944
1945                 if (logio->io_parameter[7] || logio->io_parameter[8])
1946                         fcport->supported_classes |= FC_COS_CLASS2;
1947                 if (logio->io_parameter[9] || logio->io_parameter[10])
1948                         fcport->supported_classes |= FC_COS_CLASS3;
1949
1950                 goto logio_done;
1951         }
1952
1953         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1954         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1955         lio->u.logio.iop[0] = iop[0];
1956         lio->u.logio.iop[1] = iop[1];
1957         switch (iop[0]) {
1958         case LSC_SCODE_PORTID_USED:
1959                 data[0] = MBS_PORT_ID_USED;
1960                 data[1] = LSW(iop[1]);
1961                 break;
1962         case LSC_SCODE_NPORT_USED:
1963                 data[0] = MBS_LOOP_ID_USED;
1964                 break;
1965         case LSC_SCODE_CMD_FAILED:
1966                 if (iop[1] == 0x0606) {
1967                         /*
1968                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1969                          * Target side acked.
1970                          */
1971                         data[0] = MBS_COMMAND_COMPLETE;
1972                         goto logio_done;
1973                 }
1974                 data[0] = MBS_COMMAND_ERROR;
1975                 break;
1976         case LSC_SCODE_NOXCB:
1977                 vha->hw->exch_starvation++;
1978                 if (vha->hw->exch_starvation > 5) {
1979                         ql_log(ql_log_warn, vha, 0xd046,
1980                             "Exchange starvation. Resetting RISC\n");
1981
1982                         vha->hw->exch_starvation = 0;
1983
1984                         if (IS_P3P_TYPE(vha->hw))
1985                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1986                         else
1987                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1988                         qla2xxx_wake_dpc(vha);
1989                 }
1990                 /* fall through */
1991         default:
1992                 data[0] = MBS_COMMAND_ERROR;
1993                 break;
1994         }
1995
1996         ql_dbg(ql_dbg_async, sp->vha, 0x5037,
1997             "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
1998             type, sp->handle, fcport->d_id.b24, fcport->port_name,
1999             le16_to_cpu(logio->comp_status),
2000             le32_to_cpu(logio->io_parameter[0]),
2001             le32_to_cpu(logio->io_parameter[1]));
2002
2003 logio_done:
2004         sp->done(sp, 0);
2005 }
2006
2007 static void
2008 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2009 {
2010         const char func[] = "TMF-IOCB";
2011         const char *type;
2012         fc_port_t *fcport;
2013         srb_t *sp;
2014         struct srb_iocb *iocb;
2015         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2016
2017         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2018         if (!sp)
2019                 return;
2020
2021         iocb = &sp->u.iocb_cmd;
2022         type = sp->name;
2023         fcport = sp->fcport;
2024         iocb->u.tmf.data = QLA_SUCCESS;
2025
2026         if (sts->entry_status) {
2027                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2028                     "Async-%s error - hdl=%x entry-status(%x).\n",
2029                     type, sp->handle, sts->entry_status);
2030                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2031         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2032                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2033                     "Async-%s error - hdl=%x completion status(%x).\n",
2034                     type, sp->handle, sts->comp_status);
2035                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2036         } else if ((le16_to_cpu(sts->scsi_status) &
2037             SS_RESPONSE_INFO_LEN_VALID)) {
2038                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2039                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2040                             "Async-%s error - hdl=%x not enough response(%d).\n",
2041                             type, sp->handle, sts->rsp_data_len);
2042                 } else if (sts->data[3]) {
2043                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2044                             "Async-%s error - hdl=%x response(%x).\n",
2045                             type, sp->handle, sts->data[3]);
2046                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2047                 }
2048         }
2049
2050         if (iocb->u.tmf.data != QLA_SUCCESS)
2051                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2052                     sts, sizeof(*sts));
2053
2054         sp->done(sp, 0);
2055 }
2056
2057 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2058     void *tsk, srb_t *sp)
2059 {
2060         fc_port_t *fcport;
2061         struct srb_iocb *iocb;
2062         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2063         uint16_t        state_flags;
2064         struct nvmefc_fcp_req *fd;
2065         uint16_t        ret = QLA_SUCCESS;
2066         uint16_t        comp_status = le16_to_cpu(sts->comp_status);
2067         int             logit = 0;
2068
2069         iocb = &sp->u.iocb_cmd;
2070         fcport = sp->fcport;
2071         iocb->u.nvme.comp_status = comp_status;
2072         state_flags  = le16_to_cpu(sts->state_flags);
2073         fd = iocb->u.nvme.desc;
2074
2075         if (unlikely(iocb->u.nvme.aen_op))
2076                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2077
2078         if (unlikely(comp_status != CS_COMPLETE))
2079                 logit = 1;
2080
2081         fd->transferred_length = fd->payload_length -
2082             le32_to_cpu(sts->residual_len);
2083
2084         /*
2085          * State flags: Bit 6 and 0.
2086          * If 0 is set, we don't care about 6.
2087          * both cases resp was dma'd to host buffer
2088          * if both are 0, that is good path case.
2089          * if six is set and 0 is clear, we need to
2090          * copy resp data from status iocb to resp buffer.
2091          */
2092         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2093                 iocb->u.nvme.rsp_pyld_len = 0;
2094         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2095                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2096                 /* Response already DMA'd to fd->rspaddr. */
2097                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
2098         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2099                 /*
2100                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2101                  * as an error.
2102                  */
2103                 iocb->u.nvme.rsp_pyld_len = 0;
2104                 fd->transferred_length = 0;
2105                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2106                         "Unexpected values in NVMe_RSP IU.\n");
2107                 logit = 1;
2108         } else if (state_flags & SF_NVME_ERSP) {
2109                 uint32_t *inbuf, *outbuf;
2110                 uint16_t iter;
2111
2112                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2113                 outbuf = (uint32_t *)fd->rspaddr;
2114                 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
2115                 if (unlikely(iocb->u.nvme.rsp_pyld_len >
2116                     sizeof(struct nvme_fc_ersp_iu))) {
2117                         if (ql_mask_match(ql_dbg_io)) {
2118                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2119                                     iocb->u.nvme.rsp_pyld_len);
2120                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2121                                     "Unexpected response payload length %u.\n",
2122                                     iocb->u.nvme.rsp_pyld_len);
2123                         }
2124                         iocb->u.nvme.rsp_pyld_len =
2125                             sizeof(struct nvme_fc_ersp_iu);
2126                 }
2127                 iter = iocb->u.nvme.rsp_pyld_len >> 2;
2128                 for (; iter; iter--)
2129                         *outbuf++ = swab32(*inbuf++);
2130         }
2131
2132         if (state_flags & SF_NVME_ERSP) {
2133                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2134                 u32 tgt_xfer_len;
2135
2136                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2137                 if (fd->transferred_length != tgt_xfer_len) {
2138                         ql_dbg(ql_dbg_io, fcport->vha, 0x3079,
2139                                 "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2140                                 tgt_xfer_len, fd->transferred_length);
2141                         logit = 1;
2142                 } else if (comp_status == CS_DATA_UNDERRUN) {
2143                         /*
2144                          * Do not log if this is just an underflow and there
2145                          * is no data loss.
2146                          */
2147                         logit = 0;
2148                 }
2149         }
2150
2151         if (unlikely(logit))
2152                 ql_log(ql_log_warn, fcport->vha, 0x5060,
2153                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2154                    sp->name, sp->handle, comp_status,
2155                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2156                    sts->ox_id);
2157
2158         /*
2159          * If transport error then Failure (HBA rejects request)
2160          * otherwise transport will handle.
2161          */
2162         switch (comp_status) {
2163         case CS_COMPLETE:
2164                 break;
2165
2166         case CS_RESET:
2167         case CS_PORT_UNAVAILABLE:
2168         case CS_PORT_LOGGED_OUT:
2169                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2170                 /* fall through */
2171         case CS_ABORTED:
2172         case CS_PORT_BUSY:
2173                 fd->transferred_length = 0;
2174                 iocb->u.nvme.rsp_pyld_len = 0;
2175                 ret = QLA_ABORTED;
2176                 break;
2177         case CS_DATA_UNDERRUN:
2178                 break;
2179         default:
2180                 ret = QLA_FUNCTION_FAILED;
2181                 break;
2182         }
2183         sp->done(sp, ret);
2184 }
2185
2186 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2187     struct vp_ctrl_entry_24xx *vce)
2188 {
2189         const char func[] = "CTRLVP-IOCB";
2190         srb_t *sp;
2191         int rval = QLA_SUCCESS;
2192
2193         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2194         if (!sp)
2195                 return;
2196
2197         if (vce->entry_status != 0) {
2198                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2199                     "%s: Failed to complete IOCB -- error status (%x)\n",
2200                     sp->name, vce->entry_status);
2201                 rval = QLA_FUNCTION_FAILED;
2202         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2203                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2204                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2205                     sp->name, le16_to_cpu(vce->comp_status),
2206                     le16_to_cpu(vce->vp_idx_failed));
2207                 rval = QLA_FUNCTION_FAILED;
2208         } else {
2209                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2210                     "Done %s.\n", __func__);
2211         }
2212
2213         sp->rc = rval;
2214         sp->done(sp, rval);
2215 }
2216
2217 /* Process a single response queue entry. */
2218 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2219                                            struct rsp_que *rsp,
2220                                            sts_entry_t *pkt)
2221 {
2222         sts21_entry_t *sts21_entry;
2223         sts22_entry_t *sts22_entry;
2224         uint16_t handle_cnt;
2225         uint16_t cnt;
2226
2227         switch (pkt->entry_type) {
2228         case STATUS_TYPE:
2229                 qla2x00_status_entry(vha, rsp, pkt);
2230                 break;
2231         case STATUS_TYPE_21:
2232                 sts21_entry = (sts21_entry_t *)pkt;
2233                 handle_cnt = sts21_entry->handle_count;
2234                 for (cnt = 0; cnt < handle_cnt; cnt++)
2235                         qla2x00_process_completed_request(vha, rsp->req,
2236                                                 sts21_entry->handle[cnt]);
2237                 break;
2238         case STATUS_TYPE_22:
2239                 sts22_entry = (sts22_entry_t *)pkt;
2240                 handle_cnt = sts22_entry->handle_count;
2241                 for (cnt = 0; cnt < handle_cnt; cnt++)
2242                         qla2x00_process_completed_request(vha, rsp->req,
2243                                                 sts22_entry->handle[cnt]);
2244                 break;
2245         case STATUS_CONT_TYPE:
2246                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2247                 break;
2248         case MBX_IOCB_TYPE:
2249                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2250                 break;
2251         case CT_IOCB_TYPE:
2252                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2253                 break;
2254         default:
2255                 /* Type Not Supported. */
2256                 ql_log(ql_log_warn, vha, 0x504a,
2257                        "Received unknown response pkt type %x entry status=%x.\n",
2258                        pkt->entry_type, pkt->entry_status);
2259                 break;
2260         }
2261 }
2262
2263 /**
2264  * qla2x00_process_response_queue() - Process response queue entries.
2265  * @rsp: response queue
2266  */
2267 void
2268 qla2x00_process_response_queue(struct rsp_que *rsp)
2269 {
2270         struct scsi_qla_host *vha;
2271         struct qla_hw_data *ha = rsp->hw;
2272         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2273         sts_entry_t     *pkt;
2274
2275         vha = pci_get_drvdata(ha->pdev);
2276
2277         if (!vha->flags.online)
2278                 return;
2279
2280         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2281                 pkt = (sts_entry_t *)rsp->ring_ptr;
2282
2283                 rsp->ring_index++;
2284                 if (rsp->ring_index == rsp->length) {
2285                         rsp->ring_index = 0;
2286                         rsp->ring_ptr = rsp->ring;
2287                 } else {
2288                         rsp->ring_ptr++;
2289                 }
2290
2291                 if (pkt->entry_status != 0) {
2292                         qla2x00_error_entry(vha, rsp, pkt);
2293                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2294                         wmb();
2295                         continue;
2296                 }
2297
2298                 qla2x00_process_response_entry(vha, rsp, pkt);
2299                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2300                 wmb();
2301         }
2302
2303         /* Adjust ring index */
2304         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2305 }
2306
2307 static inline void
2308 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2309                      uint32_t sense_len, struct rsp_que *rsp, int res)
2310 {
2311         struct scsi_qla_host *vha = sp->vha;
2312         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2313         uint32_t track_sense_len;
2314
2315         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2316                 sense_len = SCSI_SENSE_BUFFERSIZE;
2317
2318         SET_CMD_SENSE_LEN(sp, sense_len);
2319         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2320         track_sense_len = sense_len;
2321
2322         if (sense_len > par_sense_len)
2323                 sense_len = par_sense_len;
2324
2325         memcpy(cp->sense_buffer, sense_data, sense_len);
2326
2327         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2328         track_sense_len -= sense_len;
2329         SET_CMD_SENSE_LEN(sp, track_sense_len);
2330
2331         if (track_sense_len != 0) {
2332                 rsp->status_srb = sp;
2333                 cp->result = res;
2334         }
2335
2336         if (sense_len) {
2337                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2338                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2339                     sp->vha->host_no, cp->device->id, cp->device->lun,
2340                     cp);
2341                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2342                     cp->sense_buffer, sense_len);
2343         }
2344 }
2345
2346 struct scsi_dif_tuple {
2347         __be16 guard;       /* Checksum */
2348         __be16 app_tag;         /* APPL identifier */
2349         __be32 ref_tag;         /* Target LBA or indirect LBA */
2350 };
2351
2352 /*
2353  * Checks the guard or meta-data for the type of error
2354  * detected by the HBA. In case of errors, we set the
2355  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2356  * to indicate to the kernel that the HBA detected error.
2357  */
2358 static inline int
2359 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2360 {
2361         struct scsi_qla_host *vha = sp->vha;
2362         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2363         uint8_t         *ap = &sts24->data[12];
2364         uint8_t         *ep = &sts24->data[20];
2365         uint32_t        e_ref_tag, a_ref_tag;
2366         uint16_t        e_app_tag, a_app_tag;
2367         uint16_t        e_guard, a_guard;
2368
2369         /*
2370          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2371          * would make guard field appear at offset 2
2372          */
2373         a_guard   = get_unaligned_le16(ap + 2);
2374         a_app_tag = get_unaligned_le16(ap + 0);
2375         a_ref_tag = get_unaligned_le32(ap + 4);
2376         e_guard   = get_unaligned_le16(ep + 2);
2377         e_app_tag = get_unaligned_le16(ep + 0);
2378         e_ref_tag = get_unaligned_le32(ep + 4);
2379
2380         ql_dbg(ql_dbg_io, vha, 0x3023,
2381             "iocb(s) %p Returned STATUS.\n", sts24);
2382
2383         ql_dbg(ql_dbg_io, vha, 0x3024,
2384             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2385             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2386             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2387             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2388             a_app_tag, e_app_tag, a_guard, e_guard);
2389
2390         /*
2391          * Ignore sector if:
2392          * For type     3: ref & app tag is all 'f's
2393          * For type 0,1,2: app tag is all 'f's
2394          */
2395         if ((a_app_tag == T10_PI_APP_ESCAPE) &&
2396             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
2397              (a_ref_tag == T10_PI_REF_ESCAPE))) {
2398                 uint32_t blocks_done, resid;
2399                 sector_t lba_s = scsi_get_lba(cmd);
2400
2401                 /* 2TB boundary case covered automatically with this */
2402                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2403
2404                 resid = scsi_bufflen(cmd) - (blocks_done *
2405                     cmd->device->sector_size);
2406
2407                 scsi_set_resid(cmd, resid);
2408                 cmd->result = DID_OK << 16;
2409
2410                 /* Update protection tag */
2411                 if (scsi_prot_sg_count(cmd)) {
2412                         uint32_t i, j = 0, k = 0, num_ent;
2413                         struct scatterlist *sg;
2414                         struct t10_pi_tuple *spt;
2415
2416                         /* Patch the corresponding protection tags */
2417                         scsi_for_each_prot_sg(cmd, sg,
2418                             scsi_prot_sg_count(cmd), i) {
2419                                 num_ent = sg_dma_len(sg) / 8;
2420                                 if (k + num_ent < blocks_done) {
2421                                         k += num_ent;
2422                                         continue;
2423                                 }
2424                                 j = blocks_done - k - 1;
2425                                 k = blocks_done;
2426                                 break;
2427                         }
2428
2429                         if (k != blocks_done) {
2430                                 ql_log(ql_log_warn, vha, 0x302f,
2431                                     "unexpected tag values tag:lba=%x:%llx)\n",
2432                                     e_ref_tag, (unsigned long long)lba_s);
2433                                 return 1;
2434                         }
2435
2436                         spt = page_address(sg_page(sg)) + sg->offset;
2437                         spt += j;
2438
2439                         spt->app_tag = T10_PI_APP_ESCAPE;
2440                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2441                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2442                 }
2443
2444                 return 0;
2445         }
2446
2447         /* check guard */
2448         if (e_guard != a_guard) {
2449                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2450                     0x10, 0x1);
2451                 set_driver_byte(cmd, DRIVER_SENSE);
2452                 set_host_byte(cmd, DID_ABORT);
2453                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2454                 return 1;
2455         }
2456
2457         /* check ref tag */
2458         if (e_ref_tag != a_ref_tag) {
2459                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2460                     0x10, 0x3);
2461                 set_driver_byte(cmd, DRIVER_SENSE);
2462                 set_host_byte(cmd, DID_ABORT);
2463                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2464                 return 1;
2465         }
2466
2467         /* check appl tag */
2468         if (e_app_tag != a_app_tag) {
2469                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2470                     0x10, 0x2);
2471                 set_driver_byte(cmd, DRIVER_SENSE);
2472                 set_host_byte(cmd, DID_ABORT);
2473                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2474                 return 1;
2475         }
2476
2477         return 1;
2478 }
2479
2480 static void
2481 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2482                                   struct req_que *req, uint32_t index)
2483 {
2484         struct qla_hw_data *ha = vha->hw;
2485         srb_t *sp;
2486         uint16_t        comp_status;
2487         uint16_t        scsi_status;
2488         uint16_t thread_id;
2489         uint32_t rval = EXT_STATUS_OK;
2490         struct bsg_job *bsg_job = NULL;
2491         struct fc_bsg_request *bsg_request;
2492         struct fc_bsg_reply *bsg_reply;
2493         sts_entry_t *sts = pkt;
2494         struct sts_entry_24xx *sts24 = pkt;
2495
2496         /* Validate handle. */
2497         if (index >= req->num_outstanding_cmds) {
2498                 ql_log(ql_log_warn, vha, 0x70af,
2499                     "Invalid SCSI completion handle 0x%x.\n", index);
2500                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2501                 return;
2502         }
2503
2504         sp = req->outstanding_cmds[index];
2505         if (!sp) {
2506                 ql_log(ql_log_warn, vha, 0x70b0,
2507                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2508                     req->id, index);
2509
2510                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2511                 return;
2512         }
2513
2514         /* Free outstanding command slot. */
2515         req->outstanding_cmds[index] = NULL;
2516         bsg_job = sp->u.bsg_job;
2517         bsg_request = bsg_job->request;
2518         bsg_reply = bsg_job->reply;
2519
2520         if (IS_FWI2_CAPABLE(ha)) {
2521                 comp_status = le16_to_cpu(sts24->comp_status);
2522                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2523         } else {
2524                 comp_status = le16_to_cpu(sts->comp_status);
2525                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2526         }
2527
2528         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2529         switch (comp_status) {
2530         case CS_COMPLETE:
2531                 if (scsi_status == 0) {
2532                         bsg_reply->reply_payload_rcv_len =
2533                                         bsg_job->reply_payload.payload_len;
2534                         vha->qla_stats.input_bytes +=
2535                                 bsg_reply->reply_payload_rcv_len;
2536                         vha->qla_stats.input_requests++;
2537                         rval = EXT_STATUS_OK;
2538                 }
2539                 goto done;
2540
2541         case CS_DATA_OVERRUN:
2542                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2543                     "Command completed with data overrun thread_id=%d\n",
2544                     thread_id);
2545                 rval = EXT_STATUS_DATA_OVERRUN;
2546                 break;
2547
2548         case CS_DATA_UNDERRUN:
2549                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2550                     "Command completed with data underrun thread_id=%d\n",
2551                     thread_id);
2552                 rval = EXT_STATUS_DATA_UNDERRUN;
2553                 break;
2554         case CS_BIDIR_RD_OVERRUN:
2555                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2556                     "Command completed with read data overrun thread_id=%d\n",
2557                     thread_id);
2558                 rval = EXT_STATUS_DATA_OVERRUN;
2559                 break;
2560
2561         case CS_BIDIR_RD_WR_OVERRUN:
2562                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2563                     "Command completed with read and write data overrun "
2564                     "thread_id=%d\n", thread_id);
2565                 rval = EXT_STATUS_DATA_OVERRUN;
2566                 break;
2567
2568         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2569                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2570                     "Command completed with read data over and write data "
2571                     "underrun thread_id=%d\n", thread_id);
2572                 rval = EXT_STATUS_DATA_OVERRUN;
2573                 break;
2574
2575         case CS_BIDIR_RD_UNDERRUN:
2576                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2577                     "Command completed with read data underrun "
2578                     "thread_id=%d\n", thread_id);
2579                 rval = EXT_STATUS_DATA_UNDERRUN;
2580                 break;
2581
2582         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2583                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2584                     "Command completed with read data under and write data "
2585                     "overrun thread_id=%d\n", thread_id);
2586                 rval = EXT_STATUS_DATA_UNDERRUN;
2587                 break;
2588
2589         case CS_BIDIR_RD_WR_UNDERRUN:
2590                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2591                     "Command completed with read and write data underrun "
2592                     "thread_id=%d\n", thread_id);
2593                 rval = EXT_STATUS_DATA_UNDERRUN;
2594                 break;
2595
2596         case CS_BIDIR_DMA:
2597                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2598                     "Command completed with data DMA error thread_id=%d\n",
2599                     thread_id);
2600                 rval = EXT_STATUS_DMA_ERR;
2601                 break;
2602
2603         case CS_TIMEOUT:
2604                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2605                     "Command completed with timeout thread_id=%d\n",
2606                     thread_id);
2607                 rval = EXT_STATUS_TIMEOUT;
2608                 break;
2609         default:
2610                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2611                     "Command completed with completion status=0x%x "
2612                     "thread_id=%d\n", comp_status, thread_id);
2613                 rval = EXT_STATUS_ERR;
2614                 break;
2615         }
2616         bsg_reply->reply_payload_rcv_len = 0;
2617
2618 done:
2619         /* Return the vendor specific reply to API */
2620         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2621         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2622         /* Always return DID_OK, bsg will send the vendor specific response
2623          * in this case only */
2624         sp->done(sp, DID_OK << 16);
2625
2626 }
2627
2628 /**
2629  * qla2x00_status_entry() - Process a Status IOCB entry.
2630  * @vha: SCSI driver HA context
2631  * @rsp: response queue
2632  * @pkt: Entry pointer
2633  */
2634 static void
2635 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2636 {
2637         srb_t           *sp;
2638         fc_port_t       *fcport;
2639         struct scsi_cmnd *cp;
2640         sts_entry_t *sts = pkt;
2641         struct sts_entry_24xx *sts24 = pkt;
2642         uint16_t        comp_status;
2643         uint16_t        scsi_status;
2644         uint16_t        ox_id;
2645         uint8_t         lscsi_status;
2646         int32_t         resid;
2647         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2648             fw_resid_len;
2649         uint8_t         *rsp_info, *sense_data;
2650         struct qla_hw_data *ha = vha->hw;
2651         uint32_t handle;
2652         uint16_t que;
2653         struct req_que *req;
2654         int logit = 1;
2655         int res = 0;
2656         uint16_t state_flags = 0;
2657         uint16_t retry_delay = 0;
2658
2659         if (IS_FWI2_CAPABLE(ha)) {
2660                 comp_status = le16_to_cpu(sts24->comp_status);
2661                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2662                 state_flags = le16_to_cpu(sts24->state_flags);
2663         } else {
2664                 comp_status = le16_to_cpu(sts->comp_status);
2665                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2666         }
2667         handle = (uint32_t) LSW(sts->handle);
2668         que = MSW(sts->handle);
2669         req = ha->req_q_map[que];
2670
2671         /* Check for invalid queue pointer */
2672         if (req == NULL ||
2673             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2674                 ql_dbg(ql_dbg_io, vha, 0x3059,
2675                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2676                     "que=%u.\n", sts->handle, req, que);
2677                 return;
2678         }
2679
2680         /* Validate handle. */
2681         if (handle < req->num_outstanding_cmds) {
2682                 sp = req->outstanding_cmds[handle];
2683                 if (!sp) {
2684                         ql_dbg(ql_dbg_io, vha, 0x3075,
2685                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2686                             __func__, vha->host_no, sts->handle);
2687                         return;
2688                 }
2689         } else {
2690                 ql_dbg(ql_dbg_io, vha, 0x3017,
2691                     "Invalid status handle, out of range (0x%x).\n",
2692                     sts->handle);
2693
2694                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2695                         if (IS_P3P_TYPE(ha))
2696                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2697                         else
2698                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2699                         qla2xxx_wake_dpc(vha);
2700                 }
2701                 return;
2702         }
2703
2704         if (sp->cmd_type != TYPE_SRB) {
2705                 req->outstanding_cmds[handle] = NULL;
2706                 ql_dbg(ql_dbg_io, vha, 0x3015,
2707                     "Unknown sp->cmd_type %x %p).\n",
2708                     sp->cmd_type, sp);
2709                 return;
2710         }
2711
2712         /* NVME completion. */
2713         if (sp->type == SRB_NVME_CMD) {
2714                 req->outstanding_cmds[handle] = NULL;
2715                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2716                 return;
2717         }
2718
2719         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2720                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2721                 return;
2722         }
2723
2724         /* Task Management completion. */
2725         if (sp->type == SRB_TM_CMD) {
2726                 qla24xx_tm_iocb_entry(vha, req, pkt);
2727                 return;
2728         }
2729
2730         /* Fast path completion. */
2731         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2732                 qla2x00_process_completed_request(vha, req, handle);
2733
2734                 return;
2735         }
2736
2737         req->outstanding_cmds[handle] = NULL;
2738         cp = GET_CMD_SP(sp);
2739         if (cp == NULL) {
2740                 ql_dbg(ql_dbg_io, vha, 0x3018,
2741                     "Command already returned (0x%x/%p).\n",
2742                     sts->handle, sp);
2743
2744                 return;
2745         }
2746
2747         lscsi_status = scsi_status & STATUS_MASK;
2748
2749         fcport = sp->fcport;
2750
2751         ox_id = 0;
2752         sense_len = par_sense_len = rsp_info_len = resid_len =
2753             fw_resid_len = 0;
2754         if (IS_FWI2_CAPABLE(ha)) {
2755                 if (scsi_status & SS_SENSE_LEN_VALID)
2756                         sense_len = le32_to_cpu(sts24->sense_len);
2757                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2758                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2759                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2760                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2761                 if (comp_status == CS_DATA_UNDERRUN)
2762                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2763                 rsp_info = sts24->data;
2764                 sense_data = sts24->data;
2765                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2766                 ox_id = le16_to_cpu(sts24->ox_id);
2767                 par_sense_len = sizeof(sts24->data);
2768                 /* Valid values of the retry delay timer are 0x1-0xffef */
2769                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) {
2770                         retry_delay = sts24->retry_delay & 0x3fff;
2771                         ql_dbg(ql_dbg_io, sp->vha, 0x3033,
2772                             "%s: scope=%#x retry_delay=%#x\n", __func__,
2773                             sts24->retry_delay >> 14, retry_delay);
2774                 }
2775         } else {
2776                 if (scsi_status & SS_SENSE_LEN_VALID)
2777                         sense_len = le16_to_cpu(sts->req_sense_length);
2778                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2779                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2780                 resid_len = le32_to_cpu(sts->residual_length);
2781                 rsp_info = sts->rsp_info;
2782                 sense_data = sts->req_sense_data;
2783                 par_sense_len = sizeof(sts->req_sense_data);
2784         }
2785
2786         /* Check for any FCP transport errors. */
2787         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2788                 /* Sense data lies beyond any FCP RESPONSE data. */
2789                 if (IS_FWI2_CAPABLE(ha)) {
2790                         sense_data += rsp_info_len;
2791                         par_sense_len -= rsp_info_len;
2792                 }
2793                 if (rsp_info_len > 3 && rsp_info[3]) {
2794                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2795                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2796                             rsp_info_len, rsp_info[3]);
2797
2798                         res = DID_BUS_BUSY << 16;
2799                         goto out;
2800                 }
2801         }
2802
2803         /* Check for overrun. */
2804         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2805             scsi_status & SS_RESIDUAL_OVER)
2806                 comp_status = CS_DATA_OVERRUN;
2807
2808         /*
2809          * Check retry_delay_timer value if we receive a busy or
2810          * queue full.
2811          */
2812         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2813             lscsi_status == SAM_STAT_BUSY)
2814                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2815
2816         /*
2817          * Based on Host and scsi status generate status code for Linux
2818          */
2819         switch (comp_status) {
2820         case CS_COMPLETE:
2821         case CS_QUEUE_FULL:
2822                 if (scsi_status == 0) {
2823                         res = DID_OK << 16;
2824                         break;
2825                 }
2826                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2827                         resid = resid_len;
2828                         scsi_set_resid(cp, resid);
2829
2830                         if (!lscsi_status &&
2831                             ((unsigned)(scsi_bufflen(cp) - resid) <
2832                              cp->underflow)) {
2833                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2834                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2835                                     resid, scsi_bufflen(cp));
2836
2837                                 res = DID_ERROR << 16;
2838                                 break;
2839                         }
2840                 }
2841                 res = DID_OK << 16 | lscsi_status;
2842
2843                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2844                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2845                             "QUEUE FULL detected.\n");
2846                         break;
2847                 }
2848                 logit = 0;
2849                 if (lscsi_status != SS_CHECK_CONDITION)
2850                         break;
2851
2852                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2853                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2854                         break;
2855
2856                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2857                     rsp, res);
2858                 break;
2859
2860         case CS_DATA_UNDERRUN:
2861                 /* Use F/W calculated residual length. */
2862                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2863                 scsi_set_resid(cp, resid);
2864                 if (scsi_status & SS_RESIDUAL_UNDER) {
2865                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2866                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2867                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2868                                     resid, scsi_bufflen(cp));
2869
2870                                 res = DID_ERROR << 16 | lscsi_status;
2871                                 goto check_scsi_status;
2872                         }
2873
2874                         if (!lscsi_status &&
2875                             ((unsigned)(scsi_bufflen(cp) - resid) <
2876                             cp->underflow)) {
2877                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2878                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2879                                     resid, scsi_bufflen(cp));
2880
2881                                 res = DID_ERROR << 16;
2882                                 break;
2883                         }
2884                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2885                             lscsi_status != SAM_STAT_BUSY) {
2886                         /*
2887                          * scsi status of task set and busy are considered to be
2888                          * task not completed.
2889                          */
2890
2891                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2892                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2893                             resid, scsi_bufflen(cp));
2894
2895                         res = DID_ERROR << 16 | lscsi_status;
2896                         goto check_scsi_status;
2897                 } else {
2898                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2899                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2900                             scsi_status, lscsi_status);
2901                 }
2902
2903                 res = DID_OK << 16 | lscsi_status;
2904                 logit = 0;
2905
2906 check_scsi_status:
2907                 /*
2908                  * Check to see if SCSI Status is non zero. If so report SCSI
2909                  * Status.
2910                  */
2911                 if (lscsi_status != 0) {
2912                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2913                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2914                                     "QUEUE FULL detected.\n");
2915                                 logit = 1;
2916                                 break;
2917                         }
2918                         if (lscsi_status != SS_CHECK_CONDITION)
2919                                 break;
2920
2921                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2922                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2923                                 break;
2924
2925                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2926                             sense_len, rsp, res);
2927                 }
2928                 break;
2929
2930         case CS_PORT_LOGGED_OUT:
2931         case CS_PORT_CONFIG_CHG:
2932         case CS_PORT_BUSY:
2933         case CS_INCOMPLETE:
2934         case CS_PORT_UNAVAILABLE:
2935         case CS_TIMEOUT:
2936         case CS_RESET:
2937
2938                 /*
2939                  * We are going to have the fc class block the rport
2940                  * while we try to recover so instruct the mid layer
2941                  * to requeue until the class decides how to handle this.
2942                  */
2943                 res = DID_TRANSPORT_DISRUPTED << 16;
2944
2945                 if (comp_status == CS_TIMEOUT) {
2946                         if (IS_FWI2_CAPABLE(ha))
2947                                 break;
2948                         else if ((le16_to_cpu(sts->status_flags) &
2949                             SF_LOGOUT_SENT) == 0)
2950                                 break;
2951                 }
2952
2953                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2954                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2955                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2956                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2957                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2958                                 port_state_str[FCS_ONLINE],
2959                                 comp_status);
2960
2961                         qlt_schedule_sess_for_deletion(fcport);
2962                 }
2963
2964                 break;
2965
2966         case CS_ABORTED:
2967                 res = DID_RESET << 16;
2968                 break;
2969
2970         case CS_DIF_ERROR:
2971                 logit = qla2x00_handle_dif_error(sp, sts24);
2972                 res = cp->result;
2973                 break;
2974
2975         case CS_TRANSPORT:
2976                 res = DID_ERROR << 16;
2977
2978                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2979                         break;
2980
2981                 if (state_flags & BIT_4)
2982                         scmd_printk(KERN_WARNING, cp,
2983                             "Unsupported device '%s' found.\n",
2984                             cp->device->vendor);
2985                 break;
2986
2987         case CS_DMA:
2988                 ql_log(ql_log_info, fcport->vha, 0x3022,
2989                     "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2990                     comp_status, scsi_status, res, vha->host_no,
2991                     cp->device->id, cp->device->lun, fcport->d_id.b24,
2992                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2993                     resid_len, fw_resid_len, sp, cp);
2994                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
2995                     pkt, sizeof(*sts24));
2996                 res = DID_ERROR << 16;
2997                 break;
2998         default:
2999                 res = DID_ERROR << 16;
3000                 break;
3001         }
3002
3003 out:
3004         if (logit)
3005                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3006                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
3007                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
3008                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3009                     comp_status, scsi_status, res, vha->host_no,
3010                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3011                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3012                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3013                     resid_len, fw_resid_len, sp, cp);
3014
3015         if (rsp->status_srb == NULL)
3016                 sp->done(sp, res);
3017 }
3018
3019 /**
3020  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3021  * @rsp: response queue
3022  * @pkt: Entry pointer
3023  *
3024  * Extended sense data.
3025  */
3026 static void
3027 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3028 {
3029         uint8_t sense_sz = 0;
3030         struct qla_hw_data *ha = rsp->hw;
3031         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3032         srb_t *sp = rsp->status_srb;
3033         struct scsi_cmnd *cp;
3034         uint32_t sense_len;
3035         uint8_t *sense_ptr;
3036
3037         if (!sp || !GET_CMD_SENSE_LEN(sp))
3038                 return;
3039
3040         sense_len = GET_CMD_SENSE_LEN(sp);
3041         sense_ptr = GET_CMD_SENSE_PTR(sp);
3042
3043         cp = GET_CMD_SP(sp);
3044         if (cp == NULL) {
3045                 ql_log(ql_log_warn, vha, 0x3025,
3046                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3047
3048                 rsp->status_srb = NULL;
3049                 return;
3050         }
3051
3052         if (sense_len > sizeof(pkt->data))
3053                 sense_sz = sizeof(pkt->data);
3054         else
3055                 sense_sz = sense_len;
3056
3057         /* Move sense data. */
3058         if (IS_FWI2_CAPABLE(ha))
3059                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3060         memcpy(sense_ptr, pkt->data, sense_sz);
3061         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3062                 sense_ptr, sense_sz);
3063
3064         sense_len -= sense_sz;
3065         sense_ptr += sense_sz;
3066
3067         SET_CMD_SENSE_PTR(sp, sense_ptr);
3068         SET_CMD_SENSE_LEN(sp, sense_len);
3069
3070         /* Place command on done queue. */
3071         if (sense_len == 0) {
3072                 rsp->status_srb = NULL;
3073                 sp->done(sp, cp->result);
3074         }
3075 }
3076
3077 /**
3078  * qla2x00_error_entry() - Process an error entry.
3079  * @vha: SCSI driver HA context
3080  * @rsp: response queue
3081  * @pkt: Entry pointer
3082  * return : 1=allow further error analysis. 0=no additional error analysis.
3083  */
3084 static int
3085 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3086 {
3087         srb_t *sp;
3088         struct qla_hw_data *ha = vha->hw;
3089         const char func[] = "ERROR-IOCB";
3090         uint16_t que = MSW(pkt->handle);
3091         struct req_que *req = NULL;
3092         int res = DID_ERROR << 16;
3093
3094         ql_dbg(ql_dbg_async, vha, 0x502a,
3095             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3096             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3097
3098         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3099                 goto fatal;
3100
3101         req = ha->req_q_map[que];
3102
3103         if (pkt->entry_status & RF_BUSY)
3104                 res = DID_BUS_BUSY << 16;
3105
3106         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3107                 return 0;
3108
3109         switch (pkt->entry_type) {
3110         case NOTIFY_ACK_TYPE:
3111         case STATUS_TYPE:
3112         case STATUS_CONT_TYPE:
3113         case LOGINOUT_PORT_IOCB_TYPE:
3114         case CT_IOCB_TYPE:
3115         case ELS_IOCB_TYPE:
3116         case ABORT_IOCB_TYPE:
3117         case MBX_IOCB_TYPE:
3118         default:
3119                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3120                 if (sp) {
3121                         sp->done(sp, res);
3122                         return 0;
3123                 }
3124                 break;
3125
3126         case ABTS_RESP_24XX:
3127         case CTIO_TYPE7:
3128         case CTIO_CRC2:
3129                 return 1;
3130         }
3131 fatal:
3132         ql_log(ql_log_warn, vha, 0x5030,
3133             "Error entry - invalid handle/queue (%04x).\n", que);
3134         return 0;
3135 }
3136
3137 /**
3138  * qla24xx_mbx_completion() - Process mailbox command completions.
3139  * @vha: SCSI driver HA context
3140  * @mb0: Mailbox0 register
3141  */
3142 static void
3143 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3144 {
3145         uint16_t        cnt;
3146         uint32_t        mboxes;
3147         uint16_t __iomem *wptr;
3148         struct qla_hw_data *ha = vha->hw;
3149         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3150
3151         /* Read all mbox registers? */
3152         WARN_ON_ONCE(ha->mbx_count > 32);
3153         mboxes = (1ULL << ha->mbx_count) - 1;
3154         if (!ha->mcp)
3155                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3156         else
3157                 mboxes = ha->mcp->in_mb;
3158
3159         /* Load return mailbox registers. */
3160         ha->flags.mbox_int = 1;
3161         ha->mailbox_out[0] = mb0;
3162         mboxes >>= 1;
3163         wptr = (uint16_t __iomem *)&reg->mailbox1;
3164
3165         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3166                 if (mboxes & BIT_0)
3167                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
3168
3169                 mboxes >>= 1;
3170                 wptr++;
3171         }
3172 }
3173
3174 static void
3175 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3176         struct abort_entry_24xx *pkt)
3177 {
3178         const char func[] = "ABT_IOCB";
3179         srb_t *sp;
3180         struct srb_iocb *abt;
3181
3182         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3183         if (!sp)
3184                 return;
3185
3186         abt = &sp->u.iocb_cmd;
3187         abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
3188         sp->done(sp, 0);
3189 }
3190
3191 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3192     struct pt_ls4_request *pkt, struct req_que *req)
3193 {
3194         srb_t *sp;
3195         const char func[] = "LS4_IOCB";
3196         uint16_t comp_status;
3197
3198         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3199         if (!sp)
3200                 return;
3201
3202         comp_status = le16_to_cpu(pkt->status);
3203         sp->done(sp, comp_status);
3204 }
3205
3206 /**
3207  * qla24xx_process_response_queue() - Process response queue entries.
3208  * @vha: SCSI driver HA context
3209  * @rsp: response queue
3210  */
3211 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3212         struct rsp_que *rsp)
3213 {
3214         struct sts_entry_24xx *pkt;
3215         struct qla_hw_data *ha = vha->hw;
3216
3217         if (!ha->flags.fw_started)
3218                 return;
3219
3220         if (rsp->qpair->cpuid != smp_processor_id())
3221                 qla_cpu_update(rsp->qpair, smp_processor_id());
3222
3223         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3224                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3225
3226                 rsp->ring_index++;
3227                 if (rsp->ring_index == rsp->length) {
3228                         rsp->ring_index = 0;
3229                         rsp->ring_ptr = rsp->ring;
3230                 } else {
3231                         rsp->ring_ptr++;
3232                 }
3233
3234                 if (pkt->entry_status != 0) {
3235                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3236                                 goto process_err;
3237
3238                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3239                         wmb();
3240                         continue;
3241                 }
3242 process_err:
3243
3244                 switch (pkt->entry_type) {
3245                 case STATUS_TYPE:
3246                         qla2x00_status_entry(vha, rsp, pkt);
3247                         break;
3248                 case STATUS_CONT_TYPE:
3249                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3250                         break;
3251                 case VP_RPT_ID_IOCB_TYPE:
3252                         qla24xx_report_id_acquisition(vha,
3253                             (struct vp_rpt_id_entry_24xx *)pkt);
3254                         break;
3255                 case LOGINOUT_PORT_IOCB_TYPE:
3256                         qla24xx_logio_entry(vha, rsp->req,
3257                             (struct logio_entry_24xx *)pkt);
3258                         break;
3259                 case CT_IOCB_TYPE:
3260                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3261                         break;
3262                 case ELS_IOCB_TYPE:
3263                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3264                         break;
3265                 case ABTS_RECV_24XX:
3266                         if (qla_ini_mode_enabled(vha)) {
3267                                 qla24xx_purex_iocb(vha, pkt,
3268                                     qla24xx_process_abts);
3269                                 break;
3270                         }
3271                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3272                             IS_QLA28XX(ha)) {
3273                                 /* ensure that the ATIO queue is empty */
3274                                 qlt_handle_abts_recv(vha, rsp,
3275                                     (response_t *)pkt);
3276                                 break;
3277                         } else {
3278                                 qlt_24xx_process_atio_queue(vha, 1);
3279                         }
3280                         /* fall through */
3281                 case ABTS_RESP_24XX:
3282                 case CTIO_TYPE7:
3283                 case CTIO_CRC2:
3284                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3285                         break;
3286                 case PT_LS4_REQUEST:
3287                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3288                             rsp->req);
3289                         break;
3290                 case NOTIFY_ACK_TYPE:
3291                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3292                                 qlt_response_pkt_all_vps(vha, rsp,
3293                                     (response_t *)pkt);
3294                         else
3295                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3296                                         (struct nack_to_isp *)pkt);
3297                         break;
3298                 case MARKER_TYPE:
3299                         /* Do nothing in this case, this check is to prevent it
3300                          * from falling into default case
3301                          */
3302                         break;
3303                 case ABORT_IOCB_TYPE:
3304                         qla24xx_abort_iocb_entry(vha, rsp->req,
3305                             (struct abort_entry_24xx *)pkt);
3306                         break;
3307                 case MBX_IOCB_TYPE:
3308                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3309                             (struct mbx_24xx_entry *)pkt);
3310                         break;
3311                 case VP_CTRL_IOCB_TYPE:
3312                         qla_ctrlvp_completed(vha, rsp->req,
3313                             (struct vp_ctrl_entry_24xx *)pkt);
3314                         break;
3315                 case PUREX_IOCB_TYPE:
3316                 {
3317                         struct purex_entry_24xx *purex = (void *)pkt;
3318
3319                         if (purex->els_frame_payload[3] != ELS_COMMAND_RDP) {
3320                                 ql_dbg(ql_dbg_init, vha, 0x5091,
3321                                     "Discarding ELS Request opcode %#x...\n",
3322                                     purex->els_frame_payload[3]);
3323                                 break;
3324                         }
3325                         qla24xx_purex_iocb(vha, pkt, qla24xx_process_purex_rdp);
3326                         break;
3327                 }
3328                 default:
3329                         /* Type Not Supported. */
3330                         ql_dbg(ql_dbg_async, vha, 0x5042,
3331                             "Received unknown response pkt type %x "
3332                             "entry status=%x.\n",
3333                             pkt->entry_type, pkt->entry_status);
3334                         break;
3335                 }
3336                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3337                 wmb();
3338         }
3339
3340         /* Adjust ring index */
3341         if (IS_P3P_TYPE(ha)) {
3342                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3343
3344                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
3345         } else {
3346                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
3347         }
3348 }
3349
3350 static void
3351 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3352 {
3353         int rval;
3354         uint32_t cnt;
3355         struct qla_hw_data *ha = vha->hw;
3356         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3357
3358         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3359             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3360                 return;
3361
3362         rval = QLA_SUCCESS;
3363         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
3364         RD_REG_DWORD(&reg->iobase_addr);
3365         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3366         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3367             rval == QLA_SUCCESS; cnt--) {
3368                 if (cnt) {
3369                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
3370                         udelay(10);
3371                 } else
3372                         rval = QLA_FUNCTION_TIMEOUT;
3373         }
3374         if (rval == QLA_SUCCESS)
3375                 goto next_test;
3376
3377         rval = QLA_SUCCESS;
3378         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3379         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
3380             rval == QLA_SUCCESS; cnt--) {
3381                 if (cnt) {
3382                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
3383                         udelay(10);
3384                 } else
3385                         rval = QLA_FUNCTION_TIMEOUT;
3386         }
3387         if (rval != QLA_SUCCESS)
3388                 goto done;
3389
3390 next_test:
3391         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
3392                 ql_log(ql_log_info, vha, 0x504c,
3393                     "Additional code -- 0x55AA.\n");
3394
3395 done:
3396         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
3397         RD_REG_DWORD(&reg->iobase_window);
3398 }
3399
3400 /**
3401  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3402  * @irq: interrupt number
3403  * @dev_id: SCSI driver HA context
3404  *
3405  * Called by system whenever the host adapter generates an interrupt.
3406  *
3407  * Returns handled flag.
3408  */
3409 irqreturn_t
3410 qla24xx_intr_handler(int irq, void *dev_id)
3411 {
3412         scsi_qla_host_t *vha;
3413         struct qla_hw_data *ha;
3414         struct device_reg_24xx __iomem *reg;
3415         int             status;
3416         unsigned long   iter;
3417         uint32_t        stat;
3418         uint32_t        hccr;
3419         uint16_t        mb[8];
3420         struct rsp_que *rsp;
3421         unsigned long   flags;
3422         bool process_atio = false;
3423
3424         rsp = (struct rsp_que *) dev_id;
3425         if (!rsp) {
3426                 ql_log(ql_log_info, NULL, 0x5059,
3427                     "%s: NULL response queue pointer.\n", __func__);
3428                 return IRQ_NONE;
3429         }
3430
3431         ha = rsp->hw;
3432         reg = &ha->iobase->isp24;
3433         status = 0;
3434
3435         if (unlikely(pci_channel_offline(ha->pdev)))
3436                 return IRQ_HANDLED;
3437
3438         spin_lock_irqsave(&ha->hardware_lock, flags);
3439         vha = pci_get_drvdata(ha->pdev);
3440         for (iter = 50; iter--; ) {
3441                 stat = RD_REG_DWORD(&reg->host_status);
3442                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3443                         break;
3444                 if (stat & HSRX_RISC_PAUSED) {
3445                         if (unlikely(pci_channel_offline(ha->pdev)))
3446                                 break;
3447
3448                         hccr = RD_REG_DWORD(&reg->hccr);
3449
3450                         ql_log(ql_log_warn, vha, 0x504b,
3451                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3452                             hccr);
3453
3454                         qla2xxx_check_risc_status(vha);
3455
3456                         ha->isp_ops->fw_dump(vha, 1);
3457                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3458                         break;
3459                 } else if ((stat & HSRX_RISC_INT) == 0)
3460                         break;
3461
3462                 switch (stat & 0xff) {
3463                 case INTR_ROM_MB_SUCCESS:
3464                 case INTR_ROM_MB_FAILED:
3465                 case INTR_MB_SUCCESS:
3466                 case INTR_MB_FAILED:
3467                         qla24xx_mbx_completion(vha, MSW(stat));
3468                         status |= MBX_INTERRUPT;
3469
3470                         break;
3471                 case INTR_ASYNC_EVENT:
3472                         mb[0] = MSW(stat);
3473                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3474                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3475                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3476                         qla2x00_async_event(vha, rsp, mb);
3477                         break;
3478                 case INTR_RSP_QUE_UPDATE:
3479                 case INTR_RSP_QUE_UPDATE_83XX:
3480                         qla24xx_process_response_queue(vha, rsp);
3481                         break;
3482                 case INTR_ATIO_QUE_UPDATE_27XX:
3483                 case INTR_ATIO_QUE_UPDATE:
3484                         process_atio = true;
3485                         break;
3486                 case INTR_ATIO_RSP_QUE_UPDATE:
3487                         process_atio = true;
3488                         qla24xx_process_response_queue(vha, rsp);
3489                         break;
3490                 default:
3491                         ql_dbg(ql_dbg_async, vha, 0x504f,
3492                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3493                         break;
3494                 }
3495                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3496                 RD_REG_DWORD_RELAXED(&reg->hccr);
3497                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3498                         ndelay(3500);
3499         }
3500         qla2x00_handle_mbx_completion(ha, status);
3501         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3502
3503         if (process_atio) {
3504                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3505                 qlt_24xx_process_atio_queue(vha, 0);
3506                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3507         }
3508
3509         return IRQ_HANDLED;
3510 }
3511
3512 static irqreturn_t
3513 qla24xx_msix_rsp_q(int irq, void *dev_id)
3514 {
3515         struct qla_hw_data *ha;
3516         struct rsp_que *rsp;
3517         struct device_reg_24xx __iomem *reg;
3518         struct scsi_qla_host *vha;
3519         unsigned long flags;
3520
3521         rsp = (struct rsp_que *) dev_id;
3522         if (!rsp) {
3523                 ql_log(ql_log_info, NULL, 0x505a,
3524                     "%s: NULL response queue pointer.\n", __func__);
3525                 return IRQ_NONE;
3526         }
3527         ha = rsp->hw;
3528         reg = &ha->iobase->isp24;
3529
3530         spin_lock_irqsave(&ha->hardware_lock, flags);
3531
3532         vha = pci_get_drvdata(ha->pdev);
3533         qla24xx_process_response_queue(vha, rsp);
3534         if (!ha->flags.disable_msix_handshake) {
3535                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3536                 RD_REG_DWORD_RELAXED(&reg->hccr);
3537         }
3538         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3539
3540         return IRQ_HANDLED;
3541 }
3542
3543 static irqreturn_t
3544 qla24xx_msix_default(int irq, void *dev_id)
3545 {
3546         scsi_qla_host_t *vha;
3547         struct qla_hw_data *ha;
3548         struct rsp_que *rsp;
3549         struct device_reg_24xx __iomem *reg;
3550         int             status;
3551         uint32_t        stat;
3552         uint32_t        hccr;
3553         uint16_t        mb[8];
3554         unsigned long flags;
3555         bool process_atio = false;
3556
3557         rsp = (struct rsp_que *) dev_id;
3558         if (!rsp) {
3559                 ql_log(ql_log_info, NULL, 0x505c,
3560                     "%s: NULL response queue pointer.\n", __func__);
3561                 return IRQ_NONE;
3562         }
3563         ha = rsp->hw;
3564         reg = &ha->iobase->isp24;
3565         status = 0;
3566
3567         spin_lock_irqsave(&ha->hardware_lock, flags);
3568         vha = pci_get_drvdata(ha->pdev);
3569         do {
3570                 stat = RD_REG_DWORD(&reg->host_status);
3571                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3572                         break;
3573                 if (stat & HSRX_RISC_PAUSED) {
3574                         if (unlikely(pci_channel_offline(ha->pdev)))
3575                                 break;
3576
3577                         hccr = RD_REG_DWORD(&reg->hccr);
3578
3579                         ql_log(ql_log_info, vha, 0x5050,
3580                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3581                             hccr);
3582
3583                         qla2xxx_check_risc_status(vha);
3584
3585                         ha->isp_ops->fw_dump(vha, 1);
3586                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3587                         break;
3588                 } else if ((stat & HSRX_RISC_INT) == 0)
3589                         break;
3590
3591                 switch (stat & 0xff) {
3592                 case INTR_ROM_MB_SUCCESS:
3593                 case INTR_ROM_MB_FAILED:
3594                 case INTR_MB_SUCCESS:
3595                 case INTR_MB_FAILED:
3596                         qla24xx_mbx_completion(vha, MSW(stat));
3597                         status |= MBX_INTERRUPT;
3598
3599                         break;
3600                 case INTR_ASYNC_EVENT:
3601                         mb[0] = MSW(stat);
3602                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3603                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3604                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3605                         qla2x00_async_event(vha, rsp, mb);
3606                         break;
3607                 case INTR_RSP_QUE_UPDATE:
3608                 case INTR_RSP_QUE_UPDATE_83XX:
3609                         qla24xx_process_response_queue(vha, rsp);
3610                         break;
3611                 case INTR_ATIO_QUE_UPDATE_27XX:
3612                 case INTR_ATIO_QUE_UPDATE:
3613                         process_atio = true;
3614                         break;
3615                 case INTR_ATIO_RSP_QUE_UPDATE:
3616                         process_atio = true;
3617                         qla24xx_process_response_queue(vha, rsp);
3618                         break;
3619                 default:
3620                         ql_dbg(ql_dbg_async, vha, 0x5051,
3621                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3622                         break;
3623                 }
3624                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3625         } while (0);
3626         qla2x00_handle_mbx_completion(ha, status);
3627         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3628
3629         if (process_atio) {
3630                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3631                 qlt_24xx_process_atio_queue(vha, 0);
3632                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3633         }
3634
3635         return IRQ_HANDLED;
3636 }
3637
3638 irqreturn_t
3639 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3640 {
3641         struct qla_hw_data *ha;
3642         struct qla_qpair *qpair;
3643
3644         qpair = dev_id;
3645         if (!qpair) {
3646                 ql_log(ql_log_info, NULL, 0x505b,
3647                     "%s: NULL response queue pointer.\n", __func__);
3648                 return IRQ_NONE;
3649         }
3650         ha = qpair->hw;
3651
3652         queue_work(ha->wq, &qpair->q_work);
3653
3654         return IRQ_HANDLED;
3655 }
3656
3657 irqreturn_t
3658 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3659 {
3660         struct qla_hw_data *ha;
3661         struct qla_qpair *qpair;
3662         struct device_reg_24xx __iomem *reg;
3663         unsigned long flags;
3664
3665         qpair = dev_id;
3666         if (!qpair) {
3667                 ql_log(ql_log_info, NULL, 0x505b,
3668                     "%s: NULL response queue pointer.\n", __func__);
3669                 return IRQ_NONE;
3670         }
3671         ha = qpair->hw;
3672
3673         reg = &ha->iobase->isp24;
3674         spin_lock_irqsave(&ha->hardware_lock, flags);
3675         WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3676         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3677
3678         queue_work(ha->wq, &qpair->q_work);
3679
3680         return IRQ_HANDLED;
3681 }
3682
3683 /* Interrupt handling helpers. */
3684
3685 struct qla_init_msix_entry {
3686         const char *name;
3687         irq_handler_t handler;
3688 };
3689
3690 static const struct qla_init_msix_entry msix_entries[] = {
3691         { "default", qla24xx_msix_default },
3692         { "rsp_q", qla24xx_msix_rsp_q },
3693         { "atio_q", qla83xx_msix_atio_q },
3694         { "qpair_multiq", qla2xxx_msix_rsp_q },
3695         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3696 };
3697
3698 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3699         { "qla2xxx (default)", qla82xx_msix_default },
3700         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3701 };
3702
3703 static int
3704 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3705 {
3706         int i, ret;
3707         struct qla_msix_entry *qentry;
3708         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3709         int min_vecs = QLA_BASE_VECTORS;
3710         struct irq_affinity desc = {
3711                 .pre_vectors = QLA_BASE_VECTORS,
3712         };
3713
3714         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3715             IS_ATIO_MSIX_CAPABLE(ha)) {
3716                 desc.pre_vectors++;
3717                 min_vecs++;
3718         }
3719
3720         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3721                 /* user wants to control IRQ setting for target mode */
3722                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3723                     ha->msix_count, PCI_IRQ_MSIX);
3724         } else
3725                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3726                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3727                     &desc);
3728
3729         if (ret < 0) {
3730                 ql_log(ql_log_fatal, vha, 0x00c7,
3731                     "MSI-X: Failed to enable support, "
3732                     "giving   up -- %d/%d.\n",
3733                     ha->msix_count, ret);
3734                 goto msix_out;
3735         } else if (ret < ha->msix_count) {
3736                 ql_log(ql_log_info, vha, 0x00c6,
3737                     "MSI-X: Using %d vectors\n", ret);
3738                 ha->msix_count = ret;
3739                 /* Recalculate queue values */
3740                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3741                         ha->max_req_queues = ha->msix_count - 1;
3742
3743                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3744                         if (QLA_TGT_MODE_ENABLED())
3745                                 ha->max_req_queues--;
3746
3747                         ha->max_rsp_queues = ha->max_req_queues;
3748
3749                         ha->max_qpairs = ha->max_req_queues - 1;
3750                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3751                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3752                 }
3753         }
3754         vha->irq_offset = desc.pre_vectors;
3755         ha->msix_entries = kcalloc(ha->msix_count,
3756                                    sizeof(struct qla_msix_entry),
3757                                    GFP_KERNEL);
3758         if (!ha->msix_entries) {
3759                 ql_log(ql_log_fatal, vha, 0x00c8,
3760                     "Failed to allocate memory for ha->msix_entries.\n");
3761                 ret = -ENOMEM;
3762                 goto free_irqs;
3763         }
3764         ha->flags.msix_enabled = 1;
3765
3766         for (i = 0; i < ha->msix_count; i++) {
3767                 qentry = &ha->msix_entries[i];
3768                 qentry->vector = pci_irq_vector(ha->pdev, i);
3769                 qentry->entry = i;
3770                 qentry->have_irq = 0;
3771                 qentry->in_use = 0;
3772                 qentry->handle = NULL;
3773         }
3774
3775         /* Enable MSI-X vectors for the base queue */
3776         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3777                 qentry = &ha->msix_entries[i];
3778                 qentry->handle = rsp;
3779                 rsp->msix = qentry;
3780                 scnprintf(qentry->name, sizeof(qentry->name),
3781                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3782                 if (IS_P3P_TYPE(ha))
3783                         ret = request_irq(qentry->vector,
3784                                 qla82xx_msix_entries[i].handler,
3785                                 0, qla82xx_msix_entries[i].name, rsp);
3786                 else
3787                         ret = request_irq(qentry->vector,
3788                                 msix_entries[i].handler,
3789                                 0, qentry->name, rsp);
3790                 if (ret)
3791                         goto msix_register_fail;
3792                 qentry->have_irq = 1;
3793                 qentry->in_use = 1;
3794         }
3795
3796         /*
3797          * If target mode is enable, also request the vector for the ATIO
3798          * queue.
3799          */
3800         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3801             IS_ATIO_MSIX_CAPABLE(ha)) {
3802                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3803                 rsp->msix = qentry;
3804                 qentry->handle = rsp;
3805                 scnprintf(qentry->name, sizeof(qentry->name),
3806                     "qla2xxx%lu_%s", vha->host_no,
3807                     msix_entries[QLA_ATIO_VECTOR].name);
3808                 qentry->in_use = 1;
3809                 ret = request_irq(qentry->vector,
3810                         msix_entries[QLA_ATIO_VECTOR].handler,
3811                         0, qentry->name, rsp);
3812                 qentry->have_irq = 1;
3813         }
3814
3815 msix_register_fail:
3816         if (ret) {
3817                 ql_log(ql_log_fatal, vha, 0x00cb,
3818                     "MSI-X: unable to register handler -- %x/%d.\n",
3819                     qentry->vector, ret);
3820                 qla2x00_free_irqs(vha);
3821                 ha->mqenable = 0;
3822                 goto msix_out;
3823         }
3824
3825         /* Enable MSI-X vector for response queue update for queue 0 */
3826         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3827                 if (ha->msixbase && ha->mqiobase &&
3828                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3829                      ql2xmqsupport))
3830                         ha->mqenable = 1;
3831         } else
3832                 if (ha->mqiobase &&
3833                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3834                      ql2xmqsupport))
3835                         ha->mqenable = 1;
3836         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3837             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3838             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3839         ql_dbg(ql_dbg_init, vha, 0x0055,
3840             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3841             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3842
3843 msix_out:
3844         return ret;
3845
3846 free_irqs:
3847         pci_free_irq_vectors(ha->pdev);
3848         goto msix_out;
3849 }
3850
3851 int
3852 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3853 {
3854         int ret = QLA_FUNCTION_FAILED;
3855         device_reg_t *reg = ha->iobase;
3856         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3857
3858         /* If possible, enable MSI-X. */
3859         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
3860             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
3861             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
3862                 goto skip_msi;
3863
3864         if (ql2xenablemsix == 2)
3865                 goto skip_msix;
3866
3867         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3868                 (ha->pdev->subsystem_device == 0x7040 ||
3869                 ha->pdev->subsystem_device == 0x7041 ||
3870                 ha->pdev->subsystem_device == 0x1705)) {
3871                 ql_log(ql_log_warn, vha, 0x0034,
3872                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3873                         ha->pdev->subsystem_vendor,
3874                         ha->pdev->subsystem_device);
3875                 goto skip_msi;
3876         }
3877
3878         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3879                 ql_log(ql_log_warn, vha, 0x0035,
3880                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3881                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3882                 goto skip_msix;
3883         }
3884
3885         ret = qla24xx_enable_msix(ha, rsp);
3886         if (!ret) {
3887                 ql_dbg(ql_dbg_init, vha, 0x0036,
3888                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3889                     ha->chip_revision, ha->fw_attributes);
3890                 goto clear_risc_ints;
3891         }
3892
3893 skip_msix:
3894
3895         ql_log(ql_log_info, vha, 0x0037,
3896             "Falling back-to MSI mode -- ret=%d.\n", ret);
3897
3898         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3899             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3900             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3901                 goto skip_msi;
3902
3903         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3904         if (ret > 0) {
3905                 ql_dbg(ql_dbg_init, vha, 0x0038,
3906                     "MSI: Enabled.\n");
3907                 ha->flags.msi_enabled = 1;
3908         } else
3909                 ql_log(ql_log_warn, vha, 0x0039,
3910                     "Falling back-to INTa mode -- ret=%d.\n", ret);
3911 skip_msi:
3912
3913         /* Skip INTx on ISP82xx. */
3914         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3915                 return QLA_FUNCTION_FAILED;
3916
3917         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3918             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3919             QLA2XXX_DRIVER_NAME, rsp);
3920         if (ret) {
3921                 ql_log(ql_log_warn, vha, 0x003a,
3922                     "Failed to reserve interrupt %d already in use.\n",
3923                     ha->pdev->irq);
3924                 goto fail;
3925         } else if (!ha->flags.msi_enabled) {
3926                 ql_dbg(ql_dbg_init, vha, 0x0125,
3927                     "INTa mode: Enabled.\n");
3928                 ha->flags.mr_intr_valid = 1;
3929         }
3930
3931 clear_risc_ints:
3932         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3933                 goto fail;
3934
3935         spin_lock_irq(&ha->hardware_lock);
3936         WRT_REG_WORD(&reg->isp.semaphore, 0);
3937         spin_unlock_irq(&ha->hardware_lock);
3938
3939 fail:
3940         return ret;
3941 }
3942
3943 void
3944 qla2x00_free_irqs(scsi_qla_host_t *vha)
3945 {
3946         struct qla_hw_data *ha = vha->hw;
3947         struct rsp_que *rsp;
3948         struct qla_msix_entry *qentry;
3949         int i;
3950
3951         /*
3952          * We need to check that ha->rsp_q_map is valid in case we are called
3953          * from a probe failure context.
3954          */
3955         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3956                 goto free_irqs;
3957         rsp = ha->rsp_q_map[0];
3958
3959         if (ha->flags.msix_enabled) {
3960                 for (i = 0; i < ha->msix_count; i++) {
3961                         qentry = &ha->msix_entries[i];
3962                         if (qentry->have_irq) {
3963                                 irq_set_affinity_notifier(qentry->vector, NULL);
3964                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3965                         }
3966                 }
3967                 kfree(ha->msix_entries);
3968                 ha->msix_entries = NULL;
3969                 ha->flags.msix_enabled = 0;
3970                 ql_dbg(ql_dbg_init, vha, 0x0042,
3971                         "Disabled MSI-X.\n");
3972         } else {
3973                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3974         }
3975
3976 free_irqs:
3977         pci_free_irq_vectors(ha->pdev);
3978 }
3979
3980 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3981         struct qla_msix_entry *msix, int vector_type)
3982 {
3983         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3984         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3985         int ret;
3986
3987         scnprintf(msix->name, sizeof(msix->name),
3988             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3989         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3990         if (ret) {
3991                 ql_log(ql_log_fatal, vha, 0x00e6,
3992                     "MSI-X: Unable to register handler -- %x/%d.\n",
3993                     msix->vector, ret);
3994                 return ret;
3995         }
3996         msix->have_irq = 1;
3997         msix->handle = qpair;
3998         return ret;
3999 }