drivers/scsi/qla2xxx/qla_isr.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * QLogic Fibre Channel HBA Driver
   4  * Copyright (c)  2003-2014 QLogic Corporation
   5  */
   6 #include "qla_def.h"
   7 #include "qla_target.h"
   8
   9 #include <linux/delay.h>
  10 #include <linux/slab.h>
  11 #include <linux/cpu.h>
  12 #include <linux/t10-pi.h>
  13 #include <scsi/scsi_tcq.h>
  14 #include <scsi/scsi_bsg_fc.h>
  15 #include <scsi/scsi_eh.h>
  16 #include <scsi/fc/fc_fs.h>
  17 #include <linux/nvme-fc-driver.h>
  18
  19 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  20 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  21 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  22 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  23         sts_entry_t *);
  24 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  25         struct purex_item *item);
  26 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  27         uint16_t size);
  28 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  29         void *pkt);
  30 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  31         void **pkt, struct rsp_que **rsp);
  32
  33 static void
  34 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  35 {
  36         void *pkt = &item->iocb;
  37         uint16_t pkt_size = item->size;
  38
  39         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  40                "%s: Enter\n", __func__);
  41
  42         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  43                "-------- ELS REQ -------\n");
  44         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  45                        pkt, pkt_size);
  46
  47         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt);
  48 }
  49
  50 const char *const port_state_str[] = {
  51         "Unknown",
  52         "UNCONFIGURED",
  53         "DEAD",
  54         "LOST",
  55         "ONLINE"
  56 };
  57
  58 static void
  59 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  60 {
  61         struct abts_entry_24xx *abts =
  62             (struct abts_entry_24xx *)&pkt->iocb;
  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         rsp_els->entry_type = ELS_IOCB_TYPE;
  91         rsp_els->entry_count = 1;
  92         rsp_els->nport_handle = cpu_to_le16(~0);
  93         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
  94         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
  95         ql_dbg(ql_dbg_init, vha, 0x0283,
  96             "Sending ELS Response to terminate exchange %#x...\n",
  97             abts->rx_xch_addr_to_abort);
  98         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
  99             "-------- ELS RSP -------\n");
 100         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 101             (uint8_t *)rsp_els, sizeof(*rsp_els));
 102         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 103         if (rval) {
 104                 ql_log(ql_log_warn, vha, 0x0288,
 105                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 106         } else if (rsp_els->comp_status) {
 107                 ql_log(ql_log_warn, vha, 0x0289,
 108                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 109                     __func__, rsp_els->comp_status,
 110                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 111         } else {
 112                 ql_dbg(ql_dbg_init, vha, 0x028a,
 113                     "%s: abort exchange done.\n", __func__);
 114         }
 115
 116         /* send ABTS response */
 117         abts_rsp = (void *)rsp_els;
 118         memset(abts_rsp, 0, sizeof(*abts_rsp));
 119         abts_rsp->entry_type = ABTS_RSP_TYPE;
 120         abts_rsp->entry_count = 1;
 121         abts_rsp->nport_handle = abts->nport_handle;
 122         abts_rsp->vp_idx = abts->vp_idx;
 123         abts_rsp->sof_type = abts->sof_type & 0xf0;
 124         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 125         abts_rsp->d_id[0] = abts->s_id[0];
 126         abts_rsp->d_id[1] = abts->s_id[1];
 127         abts_rsp->d_id[2] = abts->s_id[2];
 128         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 129         abts_rsp->s_id[0] = abts->d_id[0];
 130         abts_rsp->s_id[1] = abts->d_id[1];
 131         abts_rsp->s_id[2] = abts->d_id[2];
 132         abts_rsp->cs_ctl = abts->cs_ctl;
 133         /* include flipping bit23 in fctl */
 134         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 135             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 136         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 137         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 138         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 139         abts_rsp->type = FC_TYPE_BLD;
 140         abts_rsp->rx_id = abts->rx_id;
 141         abts_rsp->ox_id = abts->ox_id;
 142         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 143         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 144         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 145         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 146         ql_dbg(ql_dbg_init, vha, 0x028b,
 147             "Sending BA ACC response to ABTS %#x...\n",
 148             abts->rx_xch_addr_to_abort);
 149         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 150             "-------- ELS RSP -------\n");
 151         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 152             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 153         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 154         if (rval) {
 155                 ql_log(ql_log_warn, vha, 0x028c,
 156                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 157         } else if (abts_rsp->comp_status) {
 158                 ql_log(ql_log_warn, vha, 0x028d,
 159                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 160                     __func__, abts_rsp->comp_status,
 161                     abts_rsp->payload.error.subcode1,
 162                     abts_rsp->payload.error.subcode2);
 163         } else {
 164                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 165                     "%s: done.\n", __func__);
 166         }
 167
 168         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 169 }
 170
 171 /**
 172  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 173  * @irq: interrupt number
 174  * @dev_id: SCSI driver HA context
 175  *
 176  * Called by system whenever the host adapter generates an interrupt.
 177  *
 178  * Returns handled flag.
 179  */
 180 irqreturn_t
 181 qla2100_intr_handler(int irq, void *dev_id)
 182 {
 183         scsi_qla_host_t *vha;
 184         struct qla_hw_data *ha;
 185         struct device_reg_2xxx __iomem *reg;
 186         int             status;
 187         unsigned long   iter;
 188         uint16_t        hccr;
 189         uint16_t        mb[8];
 190         struct rsp_que *rsp;
 191         unsigned long   flags;
 192
 193         rsp = (struct rsp_que *) dev_id;
 194         if (!rsp) {
 195                 ql_log(ql_log_info, NULL, 0x505d,
 196                     "%s: NULL response queue pointer.\n", __func__);
 197                 return (IRQ_NONE);
 198         }
 199
 200         ha = rsp->hw;
 201         reg = &ha->iobase->isp;
 202         status = 0;
 203
 204         spin_lock_irqsave(&ha->hardware_lock, flags);
 205         vha = pci_get_drvdata(ha->pdev);
 206         for (iter = 50; iter--; ) {
 207                 hccr = rd_reg_word(&reg->hccr);
 208                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 209                         break;
 210                 if (hccr & HCCR_RISC_PAUSE) {
 211                         if (pci_channel_offline(ha->pdev))
 212                                 break;
 213
 214                         /*
 215                          * Issue a "HARD" reset in order for the RISC interrupt
 216                          * bit to be cleared.  Schedule a big hammer to get
 217                          * out of the RISC PAUSED state.
 218                          */
 219                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 220                         rd_reg_word(&reg->hccr);
 221
 222                         ha->isp_ops->fw_dump(vha);
 223                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 224                         break;
 225                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 226                         break;
 227
 228                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 229                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 230                         rd_reg_word(&reg->hccr);
 231
 232                         /* Get mailbox data. */
 233                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 234                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 235                                 qla2x00_mbx_completion(vha, mb[0]);
 236                                 status |= MBX_INTERRUPT;
 237                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 238                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 239                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 240                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 241                                 qla2x00_async_event(vha, rsp, mb);
 242                         } else {
 243                                 /*EMPTY*/
 244                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 245                                     "Unrecognized interrupt type (%d).\n",
 246                                     mb[0]);
 247                         }
 248                         /* Release mailbox registers. */
 249                         wrt_reg_word(&reg->semaphore, 0);
 250                         rd_reg_word(&reg->semaphore);
 251                 } else {
 252                         qla2x00_process_response_queue(rsp);
 253
 254                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 255                         rd_reg_word(&reg->hccr);
 256                 }
 257         }
 258         qla2x00_handle_mbx_completion(ha, status);
 259         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 260
 261         return (IRQ_HANDLED);
 262 }
 263
 264 bool
 265 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 266 {
 267         /* Check for PCI disconnection */
 268         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 269                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 270                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 271                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 272                         qla_schedule_eeh_work(vha);
 273                 }
 274                 return true;
 275         } else
 276                 return false;
 277 }
 278
 279 bool
 280 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 281 {
 282         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 283 }
 284
 285 /**
 286  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 287  * @irq: interrupt number
 288  * @dev_id: SCSI driver HA context
 289  *
 290  * Called by system whenever the host adapter generates an interrupt.
 291  *
 292  * Returns handled flag.
 293  */
 294 irqreturn_t
 295 qla2300_intr_handler(int irq, void *dev_id)
 296 {
 297         scsi_qla_host_t *vha;
 298         struct device_reg_2xxx __iomem *reg;
 299         int             status;
 300         unsigned long   iter;
 301         uint32_t        stat;
 302         uint16_t        hccr;
 303         uint16_t        mb[8];
 304         struct rsp_que *rsp;
 305         struct qla_hw_data *ha;
 306         unsigned long   flags;
 307
 308         rsp = (struct rsp_que *) dev_id;
 309         if (!rsp) {
 310                 ql_log(ql_log_info, NULL, 0x5058,
 311                     "%s: NULL response queue pointer.\n", __func__);
 312                 return (IRQ_NONE);
 313         }
 314
 315         ha = rsp->hw;
 316         reg = &ha->iobase->isp;
 317         status = 0;
 318
 319         spin_lock_irqsave(&ha->hardware_lock, flags);
 320         vha = pci_get_drvdata(ha->pdev);
 321         for (iter = 50; iter--; ) {
 322                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 323                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 324                         break;
 325                 if (stat & HSR_RISC_PAUSED) {
 326                         if (unlikely(pci_channel_offline(ha->pdev)))
 327                                 break;
 328
 329                         hccr = rd_reg_word(&reg->hccr);
 330
 331                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 332                                 ql_log(ql_log_warn, vha, 0x5026,
 333                                     "Parity error -- HCCR=%x, Dumping "
 334                                     "firmware.\n", hccr);
 335                         else
 336                                 ql_log(ql_log_warn, vha, 0x5027,
 337                                     "RISC paused -- HCCR=%x, Dumping "
 338                                     "firmware.\n", hccr);
 339
 340                         /*
 341                          * Issue a "HARD" reset in order for the RISC
 342                          * interrupt bit to be cleared.  Schedule a big
 343                          * hammer to get out of the RISC PAUSED state.
 344                          */
 345                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 346                         rd_reg_word(&reg->hccr);
 347
 348                         ha->isp_ops->fw_dump(vha);
 349                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 350                         break;
 351                 } else if ((stat & HSR_RISC_INT) == 0)
 352                         break;
 353
 354                 switch (stat & 0xff) {
 355                 case 0x1:
 356                 case 0x2:
 357                 case 0x10:
 358                 case 0x11:
 359                         qla2x00_mbx_completion(vha, MSW(stat));
 360                         status |= MBX_INTERRUPT;
 361
 362                         /* Release mailbox registers. */
 363                         wrt_reg_word(&reg->semaphore, 0);
 364                         break;
 365                 case 0x12:
 366                         mb[0] = MSW(stat);
 367                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 368                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 369                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 370                         qla2x00_async_event(vha, rsp, mb);
 371                         break;
 372                 case 0x13:
 373                         qla2x00_process_response_queue(rsp);
 374                         break;
 375                 case 0x15:
 376                         mb[0] = MBA_CMPLT_1_16BIT;
 377                         mb[1] = MSW(stat);
 378                         qla2x00_async_event(vha, rsp, mb);
 379                         break;
 380                 case 0x16:
 381                         mb[0] = MBA_SCSI_COMPLETION;
 382                         mb[1] = MSW(stat);
 383                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 384                         qla2x00_async_event(vha, rsp, mb);
 385                         break;
 386                 default:
 387                         ql_dbg(ql_dbg_async, vha, 0x5028,
 388                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 389                         break;
 390                 }
 391                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 392                 rd_reg_word_relaxed(&reg->hccr);
 393         }
 394         qla2x00_handle_mbx_completion(ha, status);
 395         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 396
 397         return (IRQ_HANDLED);
 398 }
 399
 400 /**
 401  * qla2x00_mbx_completion() - Process mailbox command completions.
 402  * @vha: SCSI driver HA context
 403  * @mb0: Mailbox0 register
 404  */
 405 static void
 406 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 407 {
 408         uint16_t        cnt;
 409         uint32_t        mboxes;
 410         __le16 __iomem *wptr;
 411         struct qla_hw_data *ha = vha->hw;
 412         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 413
 414         /* Read all mbox registers? */
 415         WARN_ON_ONCE(ha->mbx_count > 32);
 416         mboxes = (1ULL << ha->mbx_count) - 1;
 417         if (!ha->mcp)
 418                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 419         else
 420                 mboxes = ha->mcp->in_mb;
 421
 422         /* Load return mailbox registers. */
 423         ha->flags.mbox_int = 1;
 424         ha->mailbox_out[0] = mb0;
 425         mboxes >>= 1;
 426         wptr = MAILBOX_REG(ha, reg, 1);
 427
 428         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 429                 if (IS_QLA2200(ha) && cnt == 8)
 430                         wptr = MAILBOX_REG(ha, reg, 8);
 431                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 432                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 433                 else if (mboxes & BIT_0)
 434                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 435
 436                 wptr++;
 437                 mboxes >>= 1;
 438         }
 439 }
 440
 441 static void
 442 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 443 {
 444         static char *event[] =
 445                 { "Complete", "Request Notification", "Time Extension" };
 446         int rval;
 447         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 448         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 449         __le16 __iomem *wptr;
 450         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 451
 452         /* Seed data -- mailbox1 -> mailbox7. */
 453         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 454                 wptr = &reg24->mailbox1;
 455         else if (IS_QLA8044(vha->hw))
 456                 wptr = &reg82->mailbox_out[1];
 457         else
 458                 return;
 459
 460         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 461                 mb[cnt] = rd_reg_word(wptr);
 462
 463         ql_dbg(ql_dbg_async, vha, 0x5021,
 464             "Inter-Driver Communication %s -- "
 465             "%04x %04x %04x %04x %04x %04x %04x.\n",
 466             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 467             mb[4], mb[5], mb[6]);
 468         switch (aen) {
 469         /* Handle IDC Error completion case. */
 470         case MBA_IDC_COMPLETE:
 471                 if (mb[1] >> 15) {
 472                         vha->hw->flags.idc_compl_status = 1;
 473                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 474                                 complete(&vha->hw->dcbx_comp);
 475                 }
 476                 break;
 477
 478         case MBA_IDC_NOTIFY:
 479                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 480                 timeout = (descr >> 8) & 0xf;
 481                 ql_dbg(ql_dbg_async, vha, 0x5022,
 482                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 483                     vha->host_no, event[aen & 0xff], timeout);
 484
 485                 if (!timeout)
 486                         return;
 487                 rval = qla2x00_post_idc_ack_work(vha, mb);
 488                 if (rval != QLA_SUCCESS)
 489                         ql_log(ql_log_warn, vha, 0x5023,
 490                             "IDC failed to post ACK.\n");
 491                 break;
 492         case MBA_IDC_TIME_EXT:
 493                 vha->hw->idc_extend_tmo = descr;
 494                 ql_dbg(ql_dbg_async, vha, 0x5087,
 495                     "%lu Inter-Driver Communication %s -- "
 496                     "Extend timeout by=%d.\n",
 497                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 498                 break;
 499         }
 500 }
 501
 502 #define LS_UNKNOWN      2
 503 const char *
 504 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 505 {
 506         static const char *const link_speeds[] = {
 507                 "1", "2", "?", "4", "8", "16", "32", "10"
 508         };
 509 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 510
 511         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 512                 return link_speeds[0];
 513         else if (speed == 0x13)
 514                 return link_speeds[QLA_LAST_SPEED];
 515         else if (speed < QLA_LAST_SPEED)
 516                 return link_speeds[speed];
 517         else
 518                 return link_speeds[LS_UNKNOWN];
 519 }
 520
 521 static void
 522 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 523 {
 524         struct qla_hw_data *ha = vha->hw;
 525
 526         /*
 527          * 8200 AEN Interpretation:
 528          * mb[0] = AEN code
 529          * mb[1] = AEN Reason code
 530          * mb[2] = LSW of Peg-Halt Status-1 Register
 531          * mb[6] = MSW of Peg-Halt Status-1 Register
 532          * mb[3] = LSW of Peg-Halt Status-2 register
 533          * mb[7] = MSW of Peg-Halt Status-2 register
 534          * mb[4] = IDC Device-State Register value
 535          * mb[5] = IDC Driver-Presence Register value
 536          */
 537         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 538             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 539             mb[0], mb[1], mb[2], mb[6]);
 540         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 541             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 542             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 543
 544         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 545                                 IDC_HEARTBEAT_FAILURE)) {
 546                 ha->flags.nic_core_hung = 1;
 547                 ql_log(ql_log_warn, vha, 0x5060,
 548                     "83XX: F/W Error Reported: Check if reset required.\n");
 549
 550                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 551                         uint32_t protocol_engine_id, fw_err_code, err_level;
 552
 553                         /*
 554                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 555                          *  - PEG-Halt Status-1 Register:
 556                          *      (LSW = mb[2], MSW = mb[6])
 557                          *      Bits 0-7   = protocol-engine ID
 558                          *      Bits 8-28  = f/w error code
 559                          *      Bits 29-31 = Error-level
 560                          *          Error-level 0x1 = Non-Fatal error
 561                          *          Error-level 0x2 = Recoverable Fatal error
 562                          *          Error-level 0x4 = UnRecoverable Fatal error
 563                          *  - PEG-Halt Status-2 Register:
 564                          *      (LSW = mb[3], MSW = mb[7])
 565                          */
 566                         protocol_engine_id = (mb[2] & 0xff);
 567                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 568                             ((mb[6] & 0x1fff) << 8));
 569                         err_level = ((mb[6] & 0xe000) >> 13);
 570                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 571                             "Register: protocol_engine_id=0x%x "
 572                             "fw_err_code=0x%x err_level=0x%x.\n",
 573                             protocol_engine_id, fw_err_code, err_level);
 574                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 575                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 576                         if (err_level == ERR_LEVEL_NON_FATAL) {
 577                                 ql_log(ql_log_warn, vha, 0x5063,
 578                                     "Not a fatal error, f/w has recovered itself.\n");
 579                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 580                                 ql_log(ql_log_fatal, vha, 0x5064,
 581                                     "Recoverable Fatal error: Chip reset "
 582                                     "required.\n");
 583                                 qla83xx_schedule_work(vha,
 584                                     QLA83XX_NIC_CORE_RESET);
 585                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 586                                 ql_log(ql_log_fatal, vha, 0x5065,
 587                                     "Unrecoverable Fatal error: Set FAILED "
 588                                     "state, reboot required.\n");
 589                                 qla83xx_schedule_work(vha,
 590                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 591                         }
 592                 }
 593
 594                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 595                         uint16_t peg_fw_state, nw_interface_link_up;
 596                         uint16_t nw_interface_signal_detect, sfp_status;
 597                         uint16_t htbt_counter, htbt_monitor_enable;
 598                         uint16_t sfp_additional_info, sfp_multirate;
 599                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 600
 601                         /*
 602                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 603                          *  - PEG-to-FC Status Register:
 604                          *      (LSW = mb[2], MSW = mb[6])
 605                          *      Bits 0-7   = Peg-Firmware state
 606                          *      Bit 8      = N/W Interface Link-up
 607                          *      Bit 9      = N/W Interface signal detected
 608                          *      Bits 10-11 = SFP Status
 609                          *        SFP Status 0x0 = SFP+ transceiver not expected
 610                          *        SFP Status 0x1 = SFP+ transceiver not present
 611                          *        SFP Status 0x2 = SFP+ transceiver invalid
 612                          *        SFP Status 0x3 = SFP+ transceiver present and
 613                          *        valid
 614                          *      Bits 12-14 = Heartbeat Counter
 615                          *      Bit 15     = Heartbeat Monitor Enable
 616                          *      Bits 16-17 = SFP Additional Info
 617                          *        SFP info 0x0 = Unregocnized transceiver for
 618                          *        Ethernet
 619                          *        SFP info 0x1 = SFP+ brand validation failed
 620                          *        SFP info 0x2 = SFP+ speed validation failed
 621                          *        SFP info 0x3 = SFP+ access error
 622                          *      Bit 18     = SFP Multirate
 623                          *      Bit 19     = SFP Tx Fault
 624                          *      Bits 20-22 = Link Speed
 625                          *      Bits 23-27 = Reserved
 626                          *      Bits 28-30 = DCBX Status
 627                          *        DCBX Status 0x0 = DCBX Disabled
 628                          *        DCBX Status 0x1 = DCBX Enabled
 629                          *        DCBX Status 0x2 = DCBX Exchange error
 630                          *      Bit 31     = Reserved
 631                          */
 632                         peg_fw_state = (mb[2] & 0x00ff);
 633                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 634                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 635                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 636                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 637                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 638                         sfp_additional_info = (mb[6] & 0x0003);
 639                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 640                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 641                         link_speed = ((mb[6] & 0x0070) >> 4);
 642                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 643
 644                         ql_log(ql_log_warn, vha, 0x5066,
 645                             "Peg-to-Fc Status Register:\n"
 646                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 647                             "nw_interface_signal_detect=0x%x"
 648                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 649                             nw_interface_link_up, nw_interface_signal_detect,
 650                             sfp_status);
 651                         ql_log(ql_log_warn, vha, 0x5067,
 652                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 653                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 654                             htbt_counter, htbt_monitor_enable,
 655                             sfp_additional_info, sfp_multirate);
 656                         ql_log(ql_log_warn, vha, 0x5068,
 657                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 658                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 659                             dcbx_status);
 660
 661                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 662                 }
 663
 664                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 665                         ql_log(ql_log_warn, vha, 0x5069,
 666                             "Heartbeat Failure encountered, chip reset "
 667                             "required.\n");
 668
 669                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 670                 }
 671         }
 672
 673         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 674                 ql_log(ql_log_info, vha, 0x506a,
 675                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 676                 if (ha->flags.nic_core_reset_owner)
 677                         return;
 678                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 679         }
 680 }
 681
 682 int
 683 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 684 {
 685         struct qla_hw_data *ha = vha->hw;
 686         scsi_qla_host_t *vp;
 687         uint32_t vp_did;
 688         unsigned long flags;
 689         int ret = 0;
 690
 691         if (!ha->num_vhosts)
 692                 return ret;
 693
 694         spin_lock_irqsave(&ha->vport_slock, flags);
 695         list_for_each_entry(vp, &ha->vp_list, list) {
 696                 vp_did = vp->d_id.b24;
 697                 if (vp_did == rscn_entry) {
 698                         ret = 1;
 699                         break;
 700                 }
 701         }
 702         spin_unlock_irqrestore(&ha->vport_slock, flags);
 703
 704         return ret;
 705 }
 706
 707 fc_port_t *
 708 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 709 {
 710         fc_port_t *f, *tf;
 711
 712         f = tf = NULL;
 713         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 714                 if (f->loop_id == loop_id)
 715                         return f;
 716         return NULL;
 717 }
 718
 719 fc_port_t *
 720 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 721 {
 722         fc_port_t *f, *tf;
 723
 724         f = tf = NULL;
 725         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 726                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 727                         if (incl_deleted)
 728                                 return f;
 729                         else if (f->deleted == 0)
 730                                 return f;
 731                 }
 732         }
 733         return NULL;
 734 }
 735
 736 fc_port_t *
 737 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 738         u8 incl_deleted)
 739 {
 740         fc_port_t *f, *tf;
 741
 742         f = tf = NULL;
 743         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 744                 if (f->d_id.b24 == id->b24) {
 745                         if (incl_deleted)
 746                                 return f;
 747                         else if (f->deleted == 0)
 748                                 return f;
 749                 }
 750         }
 751         return NULL;
 752 }
 753
 754 /* Shall be called only on supported adapters. */
 755 static void
 756 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 757 {
 758         struct qla_hw_data *ha = vha->hw;
 759         bool reset_isp_needed = 0;
 760
 761         ql_log(ql_log_warn, vha, 0x02f0,
 762                "MPI Heartbeat stop. MPI reset is%s needed. "
 763                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
 764                mb[1] & BIT_8 ? "" : " not",
 765                mb[0], mb[1], mb[2], mb[3]);
 766
 767         if ((mb[1] & BIT_8) == 0)
 768                 return;
 769
 770         ql_log(ql_log_warn, vha, 0x02f1,
 771                "MPI Heartbeat stop. FW dump needed\n");
 772
 773         if (ql2xfulldump_on_mpifail) {
 774                 ha->isp_ops->fw_dump(vha);
 775                 reset_isp_needed = 1;
 776         }
 777
 778         ha->isp_ops->mpi_fw_dump(vha, 1);
 779
 780         if (reset_isp_needed) {
 781                 vha->hw->flags.fw_init_done = 0;
 782                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 783                 qla2xxx_wake_dpc(vha);
 784         }
 785 }
 786
 787 static struct purex_item *
 788 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
 789 {
 790         struct purex_item *item = NULL;
 791         uint8_t item_hdr_size = sizeof(*item);
 792
 793         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
 794                 item = kzalloc(item_hdr_size +
 795                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
 796         } else {
 797                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
 798                         item = &vha->default_item;
 799                         goto initialize_purex_header;
 800                 } else {
 801                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
 802                 }
 803         }
 804         if (!item) {
 805                 ql_log(ql_log_warn, vha, 0x5092,
 806                        ">> Failed allocate purex list item.\n");
 807
 808                 return NULL;
 809         }
 810
 811 initialize_purex_header:
 812         item->vha = vha;
 813         item->size = size;
 814         return item;
 815 }
 816
 817 static void
 818 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
 819                          void (*process_item)(struct scsi_qla_host *vha,
 820                                               struct purex_item *pkt))
 821 {
 822         struct purex_list *list = &vha->purex_list;
 823         ulong flags;
 824
 825         pkt->process_item = process_item;
 826
 827         spin_lock_irqsave(&list->lock, flags);
 828         list_add_tail(&pkt->list, &list->head);
 829         spin_unlock_irqrestore(&list->lock, flags);
 830
 831         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
 832 }
 833
 834 /**
 835  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
 836  * contained in a single IOCB.
 837  * purex packet.
 838  * @vha: SCSI driver HA context
 839  * @pkt: ELS packet
 840  */
 841 static struct purex_item
 842 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
 843 {
 844         struct purex_item *item;
 845
 846         item = qla24xx_alloc_purex_item(vha,
 847                                         QLA_DEFAULT_PAYLOAD_SIZE);
 848         if (!item)
 849                 return item;
 850
 851         memcpy(&item->iocb, pkt, sizeof(item->iocb));
 852         return item;
 853 }
 854
 855 /**
 856  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
 857  * span over multiple IOCBs.
 858  * @vha: SCSI driver HA context
 859  * @pkt: ELS packet
 860  * @rsp: Response queue
 861  */
 862 static struct purex_item *
 863 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
 864                       struct rsp_que **rsp)
 865 {
 866         struct purex_entry_24xx *purex = *pkt;
 867         struct rsp_que *rsp_q = *rsp;
 868         sts_cont_entry_t *new_pkt;
 869         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 870         uint16_t buffer_copy_offset = 0;
 871         uint16_t entry_count, entry_count_remaining;
 872         struct purex_item *item;
 873         void *fpin_pkt = NULL;
 874
 875         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 876             - PURX_ELS_HEADER_SIZE;
 877         pending_bytes = total_bytes;
 878         entry_count = entry_count_remaining = purex->entry_count;
 879         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 880                    sizeof(purex->els_frame_payload) : pending_bytes;
 881         ql_log(ql_log_info, vha, 0x509a,
 882                "FPIN ELS, frame_size 0x%x, entry count %d\n",
 883                total_bytes, entry_count);
 884
 885         item = qla24xx_alloc_purex_item(vha, total_bytes);
 886         if (!item)
 887                 return item;
 888
 889         fpin_pkt = &item->iocb;
 890
 891         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
 892         buffer_copy_offset += no_bytes;
 893         pending_bytes -= no_bytes;
 894         --entry_count_remaining;
 895
 896         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 897         wmb();
 898
 899         do {
 900                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 901                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
 902                                 ql_dbg(ql_dbg_async, vha, 0x5084,
 903                                        "Ran out of IOCBs, partial data 0x%x\n",
 904                                        buffer_copy_offset);
 905                                 cpu_relax();
 906                                 continue;
 907                         }
 908
 909                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 910                         *pkt = new_pkt;
 911
 912                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 913                                 ql_log(ql_log_warn, vha, 0x507a,
 914                                        "Unexpected IOCB type, partial data 0x%x\n",
 915                                        buffer_copy_offset);
 916                                 break;
 917                         }
 918
 919                         rsp_q->ring_index++;
 920                         if (rsp_q->ring_index == rsp_q->length) {
 921                                 rsp_q->ring_index = 0;
 922                                 rsp_q->ring_ptr = rsp_q->ring;
 923                         } else {
 924                                 rsp_q->ring_ptr++;
 925                         }
 926                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 927                             sizeof(new_pkt->data) : pending_bytes;
 928                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 929                                 memcpy(((uint8_t *)fpin_pkt +
 930                                     buffer_copy_offset), new_pkt->data,
 931                                     no_bytes);
 932                                 buffer_copy_offset += no_bytes;
 933                                 pending_bytes -= no_bytes;
 934                                 --entry_count_remaining;
 935                         } else {
 936                                 ql_log(ql_log_warn, vha, 0x5044,
 937                                        "Attempt to copy more that we got, optimizing..%x\n",
 938                                        buffer_copy_offset);
 939                                 memcpy(((uint8_t *)fpin_pkt +
 940                                     buffer_copy_offset), new_pkt->data,
 941                                     total_bytes - buffer_copy_offset);
 942                         }
 943
 944                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 945                         wmb();
 946                 }
 947
 948                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 949                         ql_log(ql_log_fatal, vha, 0x508b,
 950                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
 951                                total_bytes, entry_count_remaining);
 952                         qla24xx_free_purex_item(item);
 953                         return NULL;
 954                 }
 955         } while (entry_count_remaining > 0);
 956         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
 957         return item;
 958 }
 959
 960 /**
 961  * qla2x00_async_event() - Process aynchronous events.
 962  * @vha: SCSI driver HA context
 963  * @rsp: response queue
 964  * @mb: Mailbox registers (0 - 3)
 965  */
 966 void
 967 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 968 {
 969         uint16_t        handle_cnt;
 970         uint16_t        cnt, mbx;
 971         uint32_t        handles[5];
 972         struct qla_hw_data *ha = vha->hw;
 973         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 974         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 975         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 976         uint32_t        rscn_entry, host_pid;
 977         unsigned long   flags;
 978         fc_port_t       *fcport = NULL;
 979
 980         if (!vha->hw->flags.fw_started) {
 981                 ql_log(ql_log_warn, vha, 0x50ff,
 982                     "Dropping AEN - %04x %04x %04x %04x.\n",
 983                     mb[0], mb[1], mb[2], mb[3]);
 984                 return;
 985         }
 986
 987         /* Setup to process RIO completion. */
 988         handle_cnt = 0;
 989         if (IS_CNA_CAPABLE(ha))
 990                 goto skip_rio;
 991         switch (mb[0]) {
 992         case MBA_SCSI_COMPLETION:
 993                 handles[0] = make_handle(mb[2], mb[1]);
 994                 handle_cnt = 1;
 995                 break;
 996         case MBA_CMPLT_1_16BIT:
 997                 handles[0] = mb[1];
 998                 handle_cnt = 1;
 999                 mb[0] = MBA_SCSI_COMPLETION;
1000                 break;
1001         case MBA_CMPLT_2_16BIT:
1002                 handles[0] = mb[1];
1003                 handles[1] = mb[2];
1004                 handle_cnt = 2;
1005                 mb[0] = MBA_SCSI_COMPLETION;
1006                 break;
1007         case MBA_CMPLT_3_16BIT:
1008                 handles[0] = mb[1];
1009                 handles[1] = mb[2];
1010                 handles[2] = mb[3];
1011                 handle_cnt = 3;
1012                 mb[0] = MBA_SCSI_COMPLETION;
1013                 break;
1014         case MBA_CMPLT_4_16BIT:
1015                 handles[0] = mb[1];
1016                 handles[1] = mb[2];
1017                 handles[2] = mb[3];
1018                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1019                 handle_cnt = 4;
1020                 mb[0] = MBA_SCSI_COMPLETION;
1021                 break;
1022         case MBA_CMPLT_5_16BIT:
1023                 handles[0] = mb[1];
1024                 handles[1] = mb[2];
1025                 handles[2] = mb[3];
1026                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1027                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1028                 handle_cnt = 5;
1029                 mb[0] = MBA_SCSI_COMPLETION;
1030                 break;
1031         case MBA_CMPLT_2_32BIT:
1032                 handles[0] = make_handle(mb[2], mb[1]);
1033                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1034                                          RD_MAILBOX_REG(ha, reg, 6));
1035                 handle_cnt = 2;
1036                 mb[0] = MBA_SCSI_COMPLETION;
1037                 break;
1038         default:
1039                 break;
1040         }
1041 skip_rio:
1042         switch (mb[0]) {
1043         case MBA_SCSI_COMPLETION:       /* Fast Post */
1044                 if (!vha->flags.online)
1045                         break;
1046
1047                 for (cnt = 0; cnt < handle_cnt; cnt++)
1048                         qla2x00_process_completed_request(vha, rsp->req,
1049                                 handles[cnt]);
1050                 break;
1051
1052         case MBA_RESET:                 /* Reset */
1053                 ql_dbg(ql_dbg_async, vha, 0x5002,
1054                     "Asynchronous RESET.\n");
1055
1056                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1057                 break;
1058
1059         case MBA_SYSTEM_ERR:            /* System Error */
1060                 mbx = 0;
1061                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1062                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1063                         u16 m[4];
1064
1065                         m[0] = rd_reg_word(&reg24->mailbox4);
1066                         m[1] = rd_reg_word(&reg24->mailbox5);
1067                         m[2] = rd_reg_word(&reg24->mailbox6);
1068                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1069
1070                         ql_log(ql_log_warn, vha, 0x5003,
1071                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1072                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1073                 } else
1074                         ql_log(ql_log_warn, vha, 0x5003,
1075                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1076                             mb[1], mb[2], mb[3]);
1077
1078                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1079                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1080                         ha->isp_ops->mpi_fw_dump(vha, 1);
1081                 ha->isp_ops->fw_dump(vha);
1082                 ha->flags.fw_init_done = 0;
1083                 QLA_FW_STOPPED(ha);
1084
1085                 if (IS_FWI2_CAPABLE(ha)) {
1086                         if (mb[1] == 0 && mb[2] == 0) {
1087                                 ql_log(ql_log_fatal, vha, 0x5004,
1088                                     "Unrecoverable Hardware Error: adapter "
1089                                     "marked OFFLINE!\n");
1090                                 vha->flags.online = 0;
1091                                 vha->device_flags |= DFLG_DEV_FAILED;
1092                         } else {
1093                                 /* Check to see if MPI timeout occurred */
1094                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1095                                         set_bit(MPI_RESET_NEEDED,
1096                                             &vha->dpc_flags);
1097
1098                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1099                         }
1100                 } else if (mb[1] == 0) {
1101                         ql_log(ql_log_fatal, vha, 0x5005,
1102                             "Unrecoverable Hardware Error: adapter marked "
1103                             "OFFLINE!\n");
1104                         vha->flags.online = 0;
1105                         vha->device_flags |= DFLG_DEV_FAILED;
1106                 } else
1107                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1108                 break;
1109
1110         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1111                 ql_log(ql_log_warn, vha, 0x5006,
1112                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1113
1114                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1115                 break;
1116
1117         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1118                 ql_log(ql_log_warn, vha, 0x5007,
1119                     "ISP Response Transfer Error (%x).\n", mb[1]);
1120
1121                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1122                 break;
1123
1124         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1125                 ql_dbg(ql_dbg_async, vha, 0x5008,
1126                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1127                 break;
1128
1129         case MBA_LOOP_INIT_ERR:
1130                 ql_log(ql_log_warn, vha, 0x5090,
1131                     "LOOP INIT ERROR (%x).\n", mb[1]);
1132                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1133                 break;
1134
1135         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1136                 ha->flags.lip_ae = 1;
1137
1138                 ql_dbg(ql_dbg_async, vha, 0x5009,
1139                     "LIP occurred (%x).\n", mb[1]);
1140
1141                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1142                         atomic_set(&vha->loop_state, LOOP_DOWN);
1143                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1144                         qla2x00_mark_all_devices_lost(vha);
1145                 }
1146
1147                 if (vha->vp_idx) {
1148                         atomic_set(&vha->vp_state, VP_FAILED);
1149                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1150                 }
1151
1152                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1153                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1154
1155                 vha->flags.management_server_logged_in = 0;
1156                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1157                 break;
1158
1159         case MBA_LOOP_UP:               /* Loop Up Event */
1160                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1161                         ha->link_data_rate = PORT_SPEED_1GB;
1162                 else
1163                         ha->link_data_rate = mb[1];
1164
1165                 ql_log(ql_log_info, vha, 0x500a,
1166                     "LOOP UP detected (%s Gbps).\n",
1167                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1168
1169                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1170                         if (mb[2] & BIT_0)
1171                                 ql_log(ql_log_info, vha, 0x11a0,
1172                                     "FEC=enabled (link up).\n");
1173                 }
1174
1175                 vha->flags.management_server_logged_in = 0;
1176                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1177
1178                 break;
1179
1180         case MBA_LOOP_DOWN:             /* Loop Down Event */
1181                 SAVE_TOPO(ha);
1182                 ha->flags.lip_ae = 0;
1183                 ha->current_topology = 0;
1184
1185                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1186                         ? rd_reg_word(&reg24->mailbox4) : 0;
1187                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1188                         : mbx;
1189                 ql_log(ql_log_info, vha, 0x500b,
1190                     "LOOP DOWN detected (%x %x %x %x).\n",
1191                     mb[1], mb[2], mb[3], mbx);
1192
1193                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1194                         atomic_set(&vha->loop_state, LOOP_DOWN);
1195                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1196                         /*
1197                          * In case of loop down, restore WWPN from
1198                          * NVRAM in case of FA-WWPN capable ISP
1199                          * Restore for Physical Port only
1200                          */
1201                         if (!vha->vp_idx) {
1202                                 if (ha->flags.fawwpn_enabled &&
1203                                     (ha->current_topology == ISP_CFG_F)) {
1204                                         memcpy(vha->port_name, ha->port_name, WWN_SIZE);
1205                                         fc_host_port_name(vha->host) =
1206                                             wwn_to_u64(vha->port_name);
1207                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1208                                             vha, 0x00d8, "LOOP DOWN detected,"
1209                                             "restore WWPN %016llx\n",
1210                                             wwn_to_u64(vha->port_name));
1211                                 }
1212
1213                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1214                         }
1215
1216                         vha->device_flags |= DFLG_NO_CABLE;
1217                         qla2x00_mark_all_devices_lost(vha);
1218                 }
1219
1220                 if (vha->vp_idx) {
1221                         atomic_set(&vha->vp_state, VP_FAILED);
1222                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1223                 }
1224
1225                 vha->flags.management_server_logged_in = 0;
1226                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1227                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1228                 break;
1229
1230         case MBA_LIP_RESET:             /* LIP reset occurred */
1231                 ql_dbg(ql_dbg_async, vha, 0x500c,
1232                     "LIP reset occurred (%x).\n", mb[1]);
1233
1234                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1235                         atomic_set(&vha->loop_state, LOOP_DOWN);
1236                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1237                         qla2x00_mark_all_devices_lost(vha);
1238                 }
1239
1240                 if (vha->vp_idx) {
1241                         atomic_set(&vha->vp_state, VP_FAILED);
1242                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1243                 }
1244
1245                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1246
1247                 ha->operating_mode = LOOP;
1248                 vha->flags.management_server_logged_in = 0;
1249                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1250                 break;
1251
1252         /* case MBA_DCBX_COMPLETE: */
1253         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1254                 ha->flags.lip_ae = 0;
1255
1256                 if (IS_QLA2100(ha))
1257                         break;
1258
1259                 if (IS_CNA_CAPABLE(ha)) {
1260                         ql_dbg(ql_dbg_async, vha, 0x500d,
1261                             "DCBX Completed -- %04x %04x %04x.\n",
1262                             mb[1], mb[2], mb[3]);
1263                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1264                                 complete(&ha->dcbx_comp);
1265
1266                 } else
1267                         ql_dbg(ql_dbg_async, vha, 0x500e,
1268                             "Asynchronous P2P MODE received.\n");
1269
1270                 /*
1271                  * Until there's a transition from loop down to loop up, treat
1272                  * this as loop down only.
1273                  */
1274                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1275                         atomic_set(&vha->loop_state, LOOP_DOWN);
1276                         if (!atomic_read(&vha->loop_down_timer))
1277                                 atomic_set(&vha->loop_down_timer,
1278                                     LOOP_DOWN_TIME);
1279                         if (!N2N_TOPO(ha))
1280                                 qla2x00_mark_all_devices_lost(vha);
1281                 }
1282
1283                 if (vha->vp_idx) {
1284                         atomic_set(&vha->vp_state, VP_FAILED);
1285                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1286                 }
1287
1288                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1289                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1290
1291                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1292                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1293
1294                 vha->flags.management_server_logged_in = 0;
1295                 break;
1296
1297         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1298                 if (IS_QLA2100(ha))
1299                         break;
1300
1301                 ql_dbg(ql_dbg_async, vha, 0x500f,
1302                     "Configuration change detected: value=%x.\n", mb[1]);
1303
1304                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1305                         atomic_set(&vha->loop_state, LOOP_DOWN);
1306                         if (!atomic_read(&vha->loop_down_timer))
1307                                 atomic_set(&vha->loop_down_timer,
1308                                     LOOP_DOWN_TIME);
1309                         qla2x00_mark_all_devices_lost(vha);
1310                 }
1311
1312                 if (vha->vp_idx) {
1313                         atomic_set(&vha->vp_state, VP_FAILED);
1314                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1315                 }
1316
1317                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1318                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1319                 break;
1320
1321         case MBA_PORT_UPDATE:           /* Port database update */
1322                 /*
1323                  * Handle only global and vn-port update events
1324                  *
1325                  * Relevant inputs:
1326                  * mb[1] = N_Port handle of changed port
1327                  * OR 0xffff for global event
1328                  * mb[2] = New login state
1329                  * 7 = Port logged out
1330                  * mb[3] = LSB is vp_idx, 0xff = all vps
1331                  *
1332                  * Skip processing if:
1333                  *       Event is global, vp_idx is NOT all vps,
1334                  *           vp_idx does not match
1335                  *       Event is not global, vp_idx does not match
1336                  */
1337                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1338                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1339                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1340                         break;
1341
1342                 if (mb[2] == 0x7) {
1343                         ql_dbg(ql_dbg_async, vha, 0x5010,
1344                             "Port %s %04x %04x %04x.\n",
1345                             mb[1] == 0xffff ? "unavailable" : "logout",
1346                             mb[1], mb[2], mb[3]);
1347
1348                         if (mb[1] == 0xffff)
1349                                 goto global_port_update;
1350
1351                         if (mb[1] == NPH_SNS_LID(ha)) {
1352                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1353                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1354                                 break;
1355                         }
1356
1357                         /* use handle_cnt for loop id/nport handle */
1358                         if (IS_FWI2_CAPABLE(ha))
1359                                 handle_cnt = NPH_SNS;
1360                         else
1361                                 handle_cnt = SIMPLE_NAME_SERVER;
1362                         if (mb[1] == handle_cnt) {
1363                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1364                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1365                                 break;
1366                         }
1367
1368                         /* Port logout */
1369                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1370                         if (!fcport)
1371                                 break;
1372                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1373                                 break;
1374                         ql_dbg(ql_dbg_async, vha, 0x508a,
1375                             "Marking port lost loopid=%04x portid=%06x.\n",
1376                             fcport->loop_id, fcport->d_id.b24);
1377                         if (qla_ini_mode_enabled(vha)) {
1378                                 fcport->logout_on_delete = 0;
1379                                 qlt_schedule_sess_for_deletion(fcport);
1380                         }
1381                         break;
1382
1383 global_port_update:
1384                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1385                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1386                                 atomic_set(&vha->loop_down_timer,
1387                                     LOOP_DOWN_TIME);
1388                                 vha->device_flags |= DFLG_NO_CABLE;
1389                                 qla2x00_mark_all_devices_lost(vha);
1390                         }
1391
1392                         if (vha->vp_idx) {
1393                                 atomic_set(&vha->vp_state, VP_FAILED);
1394                                 fc_vport_set_state(vha->fc_vport,
1395                                     FC_VPORT_FAILED);
1396                                 qla2x00_mark_all_devices_lost(vha);
1397                         }
1398
1399                         vha->flags.management_server_logged_in = 0;
1400                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1401                         break;
1402                 }
1403
1404                 /*
1405                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1406                  * event etc. earlier indicating loop is down) then process
1407                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1408                  */
1409                 atomic_set(&vha->loop_down_timer, 0);
1410                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1411                         !ha->flags.n2n_ae  &&
1412                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1413                         ql_dbg(ql_dbg_async, vha, 0x5011,
1414                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1415                             mb[1], mb[2], mb[3]);
1416                         break;
1417                 }
1418
1419                 ql_dbg(ql_dbg_async, vha, 0x5012,
1420                     "Port database changed %04x %04x %04x.\n",
1421                     mb[1], mb[2], mb[3]);
1422
1423                 /*
1424                  * Mark all devices as missing so we will login again.
1425                  */
1426                 atomic_set(&vha->loop_state, LOOP_UP);
1427                 vha->scan.scan_retry = 0;
1428
1429                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1430                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1431                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1432                 break;
1433
1434         case MBA_RSCN_UPDATE:           /* State Change Registration */
1435                 /* Check if the Vport has issued a SCR */
1436                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1437                         break;
1438                 /* Only handle SCNs for our Vport index. */
1439                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1440                         break;
1441
1442                 ql_dbg(ql_dbg_async, vha, 0x5013,
1443                     "RSCN database changed -- %04x %04x %04x.\n",
1444                     mb[1], mb[2], mb[3]);
1445
1446                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1447                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1448                                 | vha->d_id.b.al_pa;
1449                 if (rscn_entry == host_pid) {
1450                         ql_dbg(ql_dbg_async, vha, 0x5014,
1451                             "Ignoring RSCN update to local host "
1452                             "port ID (%06x).\n", host_pid);
1453                         break;
1454                 }
1455
1456                 /* Ignore reserved bits from RSCN-payload. */
1457                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1458
1459                 /* Skip RSCNs for virtual ports on the same physical port */
1460                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1461                         break;
1462
1463                 atomic_set(&vha->loop_down_timer, 0);
1464                 vha->flags.management_server_logged_in = 0;
1465                 {
1466                         struct event_arg ea;
1467
1468                         memset(&ea, 0, sizeof(ea));
1469                         ea.id.b24 = rscn_entry;
1470                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1471                         qla2x00_handle_rscn(vha, &ea);
1472                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1473                 }
1474                 break;
1475         case MBA_CONGN_NOTI_RECV:
1476                 if (!ha->flags.scm_enabled ||
1477                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1478                         break;
1479
1480                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1481                         ql_dbg(ql_dbg_async, vha, 0x509b,
1482                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1483                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1484                         ql_log(ql_log_warn, vha, 0x509b,
1485                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1486                 }
1487                 break;
1488         /* case MBA_RIO_RESPONSE: */
1489         case MBA_ZIO_RESPONSE:
1490                 ql_dbg(ql_dbg_async, vha, 0x5015,
1491                     "[R|Z]IO update completion.\n");
1492
1493                 if (IS_FWI2_CAPABLE(ha))
1494                         qla24xx_process_response_queue(vha, rsp);
1495                 else
1496                         qla2x00_process_response_queue(rsp);
1497                 break;
1498
1499         case MBA_DISCARD_RND_FRAME:
1500                 ql_dbg(ql_dbg_async, vha, 0x5016,
1501                     "Discard RND Frame -- %04x %04x %04x.\n",
1502                     mb[1], mb[2], mb[3]);
1503                 break;
1504
1505         case MBA_TRACE_NOTIFICATION:
1506                 ql_dbg(ql_dbg_async, vha, 0x5017,
1507                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1508                 break;
1509
1510         case MBA_ISP84XX_ALERT:
1511                 ql_dbg(ql_dbg_async, vha, 0x5018,
1512                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1513                     mb[1], mb[2], mb[3]);
1514
1515                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1516                 switch (mb[1]) {
1517                 case A84_PANIC_RECOVERY:
1518                         ql_log(ql_log_info, vha, 0x5019,
1519                             "Alert 84XX: panic recovery %04x %04x.\n",
1520                             mb[2], mb[3]);
1521                         break;
1522                 case A84_OP_LOGIN_COMPLETE:
1523                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1524                         ql_log(ql_log_info, vha, 0x501a,
1525                             "Alert 84XX: firmware version %x.\n",
1526                             ha->cs84xx->op_fw_version);
1527                         break;
1528                 case A84_DIAG_LOGIN_COMPLETE:
1529                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1530                         ql_log(ql_log_info, vha, 0x501b,
1531                             "Alert 84XX: diagnostic firmware version %x.\n",
1532                             ha->cs84xx->diag_fw_version);
1533                         break;
1534                 case A84_GOLD_LOGIN_COMPLETE:
1535                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1536                         ha->cs84xx->fw_update = 1;
1537                         ql_log(ql_log_info, vha, 0x501c,
1538                             "Alert 84XX: gold firmware version %x.\n",
1539                             ha->cs84xx->gold_fw_version);
1540                         break;
1541                 default:
1542                         ql_log(ql_log_warn, vha, 0x501d,
1543                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1544                             mb[1], mb[2], mb[3]);
1545                 }
1546                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1547                 break;
1548         case MBA_DCBX_START:
1549                 ql_dbg(ql_dbg_async, vha, 0x501e,
1550                     "DCBX Started -- %04x %04x %04x.\n",
1551                     mb[1], mb[2], mb[3]);
1552                 break;
1553         case MBA_DCBX_PARAM_UPDATE:
1554                 ql_dbg(ql_dbg_async, vha, 0x501f,
1555                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1556                     mb[1], mb[2], mb[3]);
1557                 break;
1558         case MBA_FCF_CONF_ERR:
1559                 ql_dbg(ql_dbg_async, vha, 0x5020,
1560                     "FCF Configuration Error -- %04x %04x %04x.\n",
1561                     mb[1], mb[2], mb[3]);
1562                 break;
1563         case MBA_IDC_NOTIFY:
1564                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1565                         mb[4] = rd_reg_word(&reg24->mailbox4);
1566                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1567                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1568                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1569                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1570                                 /*
1571                                  * Extend loop down timer since port is active.
1572                                  */
1573                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1574                                         atomic_set(&vha->loop_down_timer,
1575                                             LOOP_DOWN_TIME);
1576                                 qla2xxx_wake_dpc(vha);
1577                         }
1578                 }
1579                 fallthrough;
1580         case MBA_IDC_COMPLETE:
1581                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1582                         complete(&ha->lb_portup_comp);
1583                 fallthrough;
1584         case MBA_IDC_TIME_EXT:
1585                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1586                     IS_QLA8044(ha))
1587                         qla81xx_idc_event(vha, mb[0], mb[1]);
1588                 break;
1589
1590         case MBA_IDC_AEN:
1591                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1592                         qla27xx_handle_8200_aen(vha, mb);
1593                 } else if (IS_QLA83XX(ha)) {
1594                         mb[4] = rd_reg_word(&reg24->mailbox4);
1595                         mb[5] = rd_reg_word(&reg24->mailbox5);
1596                         mb[6] = rd_reg_word(&reg24->mailbox6);
1597                         mb[7] = rd_reg_word(&reg24->mailbox7);
1598                         qla83xx_handle_8200_aen(vha, mb);
1599                 } else {
1600                         ql_dbg(ql_dbg_async, vha, 0x5052,
1601                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1602                             mb[0], mb[1], mb[2], mb[3]);
1603                 }
1604                 break;
1605
1606         case MBA_DPORT_DIAGNOSTICS:
1607                 ql_dbg(ql_dbg_async, vha, 0x5052,
1608                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1609                     mb[0], mb[1], mb[2], mb[3]);
1610                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1611                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1612                         static char *results[] = {
1613                             "start", "done(pass)", "done(error)", "undefined" };
1614                         static char *types[] = {
1615                             "none", "dynamic", "static", "other" };
1616                         uint result = mb[1] >> 0 & 0x3;
1617                         uint type = mb[1] >> 6 & 0x3;
1618                         uint sw = mb[1] >> 15 & 0x1;
1619                         ql_dbg(ql_dbg_async, vha, 0x5052,
1620                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1621                             results[result], types[type], sw);
1622                         if (result == 2) {
1623                                 static char *reasons[] = {
1624                                     "reserved", "unexpected reject",
1625                                     "unexpected phase", "retry exceeded",
1626                                     "timed out", "not supported",
1627                                     "user stopped" };
1628                                 uint reason = mb[2] >> 0 & 0xf;
1629                                 uint phase = mb[2] >> 12 & 0xf;
1630                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1631                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1632                                     reason < 7 ? reasons[reason] : "other",
1633                                     phase >> 1);
1634                         }
1635                 }
1636                 break;
1637
1638         case MBA_TEMPERATURE_ALERT:
1639                 ql_dbg(ql_dbg_async, vha, 0x505e,
1640                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1641                 break;
1642
1643         case MBA_TRANS_INSERT:
1644                 ql_dbg(ql_dbg_async, vha, 0x5091,
1645                     "Transceiver Insertion: %04x\n", mb[1]);
1646                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1647                 break;
1648
1649         case MBA_TRANS_REMOVE:
1650                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1651                 break;
1652
1653         default:
1654                 ql_dbg(ql_dbg_async, vha, 0x5057,
1655                     "Unknown AEN:%04x %04x %04x %04x\n",
1656                     mb[0], mb[1], mb[2], mb[3]);
1657         }
1658
1659         qlt_async_event(mb[0], vha, mb);
1660
1661         if (!vha->vp_idx && ha->num_vhosts)
1662                 qla2x00_alert_all_vps(rsp, mb);
1663 }
1664
1665 /**
1666  * qla2x00_process_completed_request() - Process a Fast Post response.
1667  * @vha: SCSI driver HA context
1668  * @req: request queue
1669  * @index: SRB index
1670  */
1671 void
1672 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1673                                   struct req_que *req, uint32_t index)
1674 {
1675         srb_t *sp;
1676         struct qla_hw_data *ha = vha->hw;
1677
1678         /* Validate handle. */
1679         if (index >= req->num_outstanding_cmds) {
1680                 ql_log(ql_log_warn, vha, 0x3014,
1681                     "Invalid SCSI command index (%x).\n", index);
1682
1683                 if (IS_P3P_TYPE(ha))
1684                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1685                 else
1686                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1687                 return;
1688         }
1689
1690         sp = req->outstanding_cmds[index];
1691         if (sp) {
1692                 /* Free outstanding command slot. */
1693                 req->outstanding_cmds[index] = NULL;
1694
1695                 /* Save ISP completion status */
1696                 sp->done(sp, DID_OK << 16);
1697         } else {
1698                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1699
1700                 if (IS_P3P_TYPE(ha))
1701                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1702                 else
1703                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1704         }
1705 }
1706
1707 srb_t *
1708 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1709     struct req_que *req, void *iocb)
1710 {
1711         struct qla_hw_data *ha = vha->hw;
1712         sts_entry_t *pkt = iocb;
1713         srb_t *sp;
1714         uint16_t index;
1715
1716         index = LSW(pkt->handle);
1717         if (index >= req->num_outstanding_cmds) {
1718                 ql_log(ql_log_warn, vha, 0x5031,
1719                            "%s: Invalid command index (%x) type %8ph.\n",
1720                            func, index, iocb);
1721                 if (IS_P3P_TYPE(ha))
1722                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1723                 else
1724                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1725                 return NULL;
1726         }
1727         sp = req->outstanding_cmds[index];
1728         if (!sp) {
1729                 ql_log(ql_log_warn, vha, 0x5032,
1730                         "%s: Invalid completion handle (%x) -- timed-out.\n",
1731                         func, index);
1732                 return NULL;
1733         }
1734         if (sp->handle != index) {
1735                 ql_log(ql_log_warn, vha, 0x5033,
1736                         "%s: SRB handle (%x) mismatch %x.\n", func,
1737                         sp->handle, index);
1738                 return NULL;
1739         }
1740
1741         req->outstanding_cmds[index] = NULL;
1742         return sp;
1743 }
1744
1745 static void
1746 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1747     struct mbx_entry *mbx)
1748 {
1749         const char func[] = "MBX-IOCB";
1750         const char *type;
1751         fc_port_t *fcport;
1752         srb_t *sp;
1753         struct srb_iocb *lio;
1754         uint16_t *data;
1755         uint16_t status;
1756
1757         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1758         if (!sp)
1759                 return;
1760
1761         lio = &sp->u.iocb_cmd;
1762         type = sp->name;
1763         fcport = sp->fcport;
1764         data = lio->u.logio.data;
1765
1766         data[0] = MBS_COMMAND_ERROR;
1767         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1768             QLA_LOGIO_LOGIN_RETRIED : 0;
1769         if (mbx->entry_status) {
1770                 ql_dbg(ql_dbg_async, vha, 0x5043,
1771                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1772                     "entry-status=%x status=%x state-flag=%x "
1773                     "status-flags=%x.\n", type, sp->handle,
1774                     fcport->d_id.b.domain, fcport->d_id.b.area,
1775                     fcport->d_id.b.al_pa, mbx->entry_status,
1776                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1777                     le16_to_cpu(mbx->status_flags));
1778
1779                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1780                     mbx, sizeof(*mbx));
1781
1782                 goto logio_done;
1783         }
1784
1785         status = le16_to_cpu(mbx->status);
1786         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1787             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1788                 status = 0;
1789         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1790                 ql_dbg(ql_dbg_async, vha, 0x5045,
1791                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1792                     type, sp->handle, fcport->d_id.b.domain,
1793                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1794                     le16_to_cpu(mbx->mb1));
1795
1796                 data[0] = MBS_COMMAND_COMPLETE;
1797                 if (sp->type == SRB_LOGIN_CMD) {
1798                         fcport->port_type = FCT_TARGET;
1799                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1800                                 fcport->port_type = FCT_INITIATOR;
1801                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1802                                 fcport->flags |= FCF_FCP2_DEVICE;
1803                 }
1804                 goto logio_done;
1805         }
1806
1807         data[0] = le16_to_cpu(mbx->mb0);
1808         switch (data[0]) {
1809         case MBS_PORT_ID_USED:
1810                 data[1] = le16_to_cpu(mbx->mb1);
1811                 break;
1812         case MBS_LOOP_ID_USED:
1813                 break;
1814         default:
1815                 data[0] = MBS_COMMAND_ERROR;
1816                 break;
1817         }
1818
1819         ql_log(ql_log_warn, vha, 0x5046,
1820             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1821             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1822             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1823             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1824             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1825             le16_to_cpu(mbx->mb7));
1826
1827 logio_done:
1828         sp->done(sp, 0);
1829 }
1830
1831 static void
1832 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1833     struct mbx_24xx_entry *pkt)
1834 {
1835         const char func[] = "MBX-IOCB2";
1836         struct qla_hw_data *ha = vha->hw;
1837         srb_t *sp;
1838         struct srb_iocb *si;
1839         u16 sz, i;
1840         int res;
1841
1842         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1843         if (!sp)
1844                 return;
1845
1846         if (sp->type == SRB_SCSI_CMD ||
1847             sp->type == SRB_NVME_CMD ||
1848             sp->type == SRB_TM_CMD) {
1849                 ql_log(ql_log_warn, vha, 0x509d,
1850                         "Inconsistent event entry type %d\n", sp->type);
1851                 if (IS_P3P_TYPE(ha))
1852                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1853                 else
1854                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1855                 return;
1856         }
1857
1858         si = &sp->u.iocb_cmd;
1859         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1860
1861         for (i = 0; i < sz; i++)
1862                 si->u.mbx.in_mb[i] = pkt->mb[i];
1863
1864         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1865
1866         sp->done(sp, res);
1867 }
1868
1869 static void
1870 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1871     struct nack_to_isp *pkt)
1872 {
1873         const char func[] = "nack";
1874         srb_t *sp;
1875         int res = 0;
1876
1877         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1878         if (!sp)
1879                 return;
1880
1881         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1882                 res = QLA_FUNCTION_FAILED;
1883
1884         sp->done(sp, res);
1885 }
1886
1887 static void
1888 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1889     sts_entry_t *pkt, int iocb_type)
1890 {
1891         const char func[] = "CT_IOCB";
1892         const char *type;
1893         srb_t *sp;
1894         struct bsg_job *bsg_job;
1895         struct fc_bsg_reply *bsg_reply;
1896         uint16_t comp_status;
1897         int res = 0;
1898
1899         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1900         if (!sp)
1901                 return;
1902
1903         switch (sp->type) {
1904         case SRB_CT_CMD:
1905             bsg_job = sp->u.bsg_job;
1906             bsg_reply = bsg_job->reply;
1907
1908             type = "ct pass-through";
1909
1910             comp_status = le16_to_cpu(pkt->comp_status);
1911
1912             /*
1913              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1914              * fc payload  to the caller
1915              */
1916             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1917             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1918
1919             if (comp_status != CS_COMPLETE) {
1920                     if (comp_status == CS_DATA_UNDERRUN) {
1921                             res = DID_OK << 16;
1922                             bsg_reply->reply_payload_rcv_len =
1923                                 le16_to_cpu(pkt->rsp_info_len);
1924
1925                             ql_log(ql_log_warn, vha, 0x5048,
1926                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1927                                 type, comp_status,
1928                                 bsg_reply->reply_payload_rcv_len);
1929                     } else {
1930                             ql_log(ql_log_warn, vha, 0x5049,
1931                                 "CT pass-through-%s error comp_status=0x%x.\n",
1932                                 type, comp_status);
1933                             res = DID_ERROR << 16;
1934                             bsg_reply->reply_payload_rcv_len = 0;
1935                     }
1936                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1937                         pkt, sizeof(*pkt));
1938             } else {
1939                     res = DID_OK << 16;
1940                     bsg_reply->reply_payload_rcv_len =
1941                         bsg_job->reply_payload.payload_len;
1942                     bsg_job->reply_len = 0;
1943             }
1944             break;
1945         case SRB_CT_PTHRU_CMD:
1946             /*
1947              * borrowing sts_entry_24xx.comp_status.
1948              * same location as ct_entry_24xx.comp_status
1949              */
1950              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1951                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1952                  sp->name);
1953              break;
1954         }
1955
1956         sp->done(sp, res);
1957 }
1958
1959 static void
1960 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1961     struct sts_entry_24xx *pkt, int iocb_type)
1962 {
1963         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
1964         const char func[] = "ELS_CT_IOCB";
1965         const char *type;
1966         srb_t *sp;
1967         struct bsg_job *bsg_job;
1968         struct fc_bsg_reply *bsg_reply;
1969         uint16_t comp_status;
1970         uint32_t fw_status[3];
1971         int res;
1972         struct srb_iocb *els;
1973
1974         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1975         if (!sp)
1976                 return;
1977
1978         type = NULL;
1979         switch (sp->type) {
1980         case SRB_ELS_CMD_RPT:
1981         case SRB_ELS_CMD_HST:
1982                 type = "els";
1983                 break;
1984         case SRB_CT_CMD:
1985                 type = "ct pass-through";
1986                 break;
1987         case SRB_ELS_DCMD:
1988                 type = "Driver ELS logo";
1989                 if (iocb_type != ELS_IOCB_TYPE) {
1990                         ql_dbg(ql_dbg_user, vha, 0x5047,
1991                             "Completing %s: (%p) type=%d.\n",
1992                             type, sp, sp->type);
1993                         sp->done(sp, 0);
1994                         return;
1995                 }
1996                 break;
1997         case SRB_CT_PTHRU_CMD:
1998                 /* borrowing sts_entry_24xx.comp_status.
1999                    same location as ct_entry_24xx.comp_status
2000                  */
2001                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2002                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2003                         sp->name);
2004                 sp->done(sp, res);
2005                 return;
2006         default:
2007                 ql_dbg(ql_dbg_user, vha, 0x503e,
2008                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2009                 return;
2010         }
2011
2012         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2013         fw_status[1] = le32_to_cpu(ese->error_subcode_1);
2014         fw_status[2] = le32_to_cpu(ese->error_subcode_2);
2015
2016         if (iocb_type == ELS_IOCB_TYPE) {
2017                 els = &sp->u.iocb_cmd;
2018                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2019                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2020                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2021                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2022                 if (comp_status == CS_COMPLETE) {
2023                         res =  DID_OK << 16;
2024                 } else {
2025                         if (comp_status == CS_DATA_UNDERRUN) {
2026                                 res =  DID_OK << 16;
2027                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2028                                         ese->total_byte_count));
2029                         } else {
2030                                 els->u.els_plogi.len = 0;
2031                                 res = DID_ERROR << 16;
2032                         }
2033                 }
2034                 ql_dbg(ql_dbg_disc, vha, 0x503f,
2035                     "ELS IOCB Done -%s hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
2036                     type, sp->handle, comp_status, fw_status[1], fw_status[2],
2037                     le32_to_cpu(ese->total_byte_count));
2038                 goto els_ct_done;
2039         }
2040
2041         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2042          * fc payload  to the caller
2043          */
2044         bsg_job = sp->u.bsg_job;
2045         bsg_reply = bsg_job->reply;
2046         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2047         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2048
2049         if (comp_status != CS_COMPLETE) {
2050                 if (comp_status == CS_DATA_UNDERRUN) {
2051                         res = DID_OK << 16;
2052                         bsg_reply->reply_payload_rcv_len =
2053                                 le32_to_cpu(ese->total_byte_count);
2054
2055                         ql_dbg(ql_dbg_user, vha, 0x503f,
2056                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2057                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2058                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
2059                             le32_to_cpu(ese->total_byte_count));
2060                 } else {
2061                         ql_dbg(ql_dbg_user, vha, 0x5040,
2062                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2063                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2064                             type, sp->handle, comp_status,
2065                             le32_to_cpu(ese->error_subcode_1),
2066                             le32_to_cpu(ese->error_subcode_2));
2067                         res = DID_ERROR << 16;
2068                         bsg_reply->reply_payload_rcv_len = 0;
2069                 }
2070                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2071                        fw_status, sizeof(fw_status));
2072                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2073                     pkt, sizeof(*pkt));
2074         }
2075         else {
2076                 res =  DID_OK << 16;
2077                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2078                 bsg_job->reply_len = 0;
2079         }
2080 els_ct_done:
2081
2082         sp->done(sp, res);
2083 }
2084
2085 static void
2086 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2087     struct logio_entry_24xx *logio)
2088 {
2089         const char func[] = "LOGIO-IOCB";
2090         const char *type;
2091         fc_port_t *fcport;
2092         srb_t *sp;
2093         struct srb_iocb *lio;
2094         uint16_t *data;
2095         uint32_t iop[2];
2096
2097         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2098         if (!sp)
2099                 return;
2100
2101         lio = &sp->u.iocb_cmd;
2102         type = sp->name;
2103         fcport = sp->fcport;
2104         data = lio->u.logio.data;
2105
2106         data[0] = MBS_COMMAND_ERROR;
2107         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2108                 QLA_LOGIO_LOGIN_RETRIED : 0;
2109         if (logio->entry_status) {
2110                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2111                     "Async-%s error entry - %8phC hdl=%x"
2112                     "portid=%02x%02x%02x entry-status=%x.\n",
2113                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2114                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2115                     logio->entry_status);
2116                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2117                     logio, sizeof(*logio));
2118
2119                 goto logio_done;
2120         }
2121
2122         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2123                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2124                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2125                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2126                     le32_to_cpu(logio->io_parameter[0]));
2127
2128                 vha->hw->exch_starvation = 0;
2129                 data[0] = MBS_COMMAND_COMPLETE;
2130
2131                 if (sp->type == SRB_PRLI_CMD) {
2132                         lio->u.logio.iop[0] =
2133                             le32_to_cpu(logio->io_parameter[0]);
2134                         lio->u.logio.iop[1] =
2135                             le32_to_cpu(logio->io_parameter[1]);
2136                         goto logio_done;
2137                 }
2138
2139                 if (sp->type != SRB_LOGIN_CMD)
2140                         goto logio_done;
2141
2142                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2143                 if (iop[0] & BIT_4) {
2144                         fcport->port_type = FCT_TARGET;
2145                         if (iop[0] & BIT_8)
2146                                 fcport->flags |= FCF_FCP2_DEVICE;
2147                 } else if (iop[0] & BIT_5)
2148                         fcport->port_type = FCT_INITIATOR;
2149
2150                 if (iop[0] & BIT_7)
2151                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2152
2153                 if (logio->io_parameter[7] || logio->io_parameter[8])
2154                         fcport->supported_classes |= FC_COS_CLASS2;
2155                 if (logio->io_parameter[9] || logio->io_parameter[10])
2156                         fcport->supported_classes |= FC_COS_CLASS3;
2157
2158                 goto logio_done;
2159         }
2160
2161         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2162         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2163         lio->u.logio.iop[0] = iop[0];
2164         lio->u.logio.iop[1] = iop[1];
2165         switch (iop[0]) {
2166         case LSC_SCODE_PORTID_USED:
2167                 data[0] = MBS_PORT_ID_USED;
2168                 data[1] = LSW(iop[1]);
2169                 break;
2170         case LSC_SCODE_NPORT_USED:
2171                 data[0] = MBS_LOOP_ID_USED;
2172                 break;
2173         case LSC_SCODE_CMD_FAILED:
2174                 if (iop[1] == 0x0606) {
2175                         /*
2176                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2177                          * Target side acked.
2178                          */
2179                         data[0] = MBS_COMMAND_COMPLETE;
2180                         goto logio_done;
2181                 }
2182                 data[0] = MBS_COMMAND_ERROR;
2183                 break;
2184         case LSC_SCODE_NOXCB:
2185                 vha->hw->exch_starvation++;
2186                 if (vha->hw->exch_starvation > 5) {
2187                         ql_log(ql_log_warn, vha, 0xd046,
2188                             "Exchange starvation. Resetting RISC\n");
2189
2190                         vha->hw->exch_starvation = 0;
2191
2192                         if (IS_P3P_TYPE(vha->hw))
2193                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2194                         else
2195                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2196                         qla2xxx_wake_dpc(vha);
2197                 }
2198                 fallthrough;
2199         default:
2200                 data[0] = MBS_COMMAND_ERROR;
2201                 break;
2202         }
2203
2204         ql_dbg(ql_dbg_async, sp->vha, 0x5037,
2205             "Async-%s failed: handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2206             type, sp->handle, fcport->d_id.b24, fcport->port_name,
2207             le16_to_cpu(logio->comp_status),
2208             le32_to_cpu(logio->io_parameter[0]),
2209             le32_to_cpu(logio->io_parameter[1]));
2210
2211 logio_done:
2212         sp->done(sp, 0);
2213 }
2214
2215 static void
2216 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2217 {
2218         const char func[] = "TMF-IOCB";
2219         const char *type;
2220         fc_port_t *fcport;
2221         srb_t *sp;
2222         struct srb_iocb *iocb;
2223         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2224
2225         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2226         if (!sp)
2227                 return;
2228
2229         iocb = &sp->u.iocb_cmd;
2230         type = sp->name;
2231         fcport = sp->fcport;
2232         iocb->u.tmf.data = QLA_SUCCESS;
2233
2234         if (sts->entry_status) {
2235                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2236                     "Async-%s error - hdl=%x entry-status(%x).\n",
2237                     type, sp->handle, sts->entry_status);
2238                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2239         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2240                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2241                     "Async-%s error - hdl=%x completion status(%x).\n",
2242                     type, sp->handle, sts->comp_status);
2243                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2244         } else if ((le16_to_cpu(sts->scsi_status) &
2245             SS_RESPONSE_INFO_LEN_VALID)) {
2246                 host_to_fcp_swap(sts->data, sizeof(sts->data));
2247                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2248                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2249                             "Async-%s error - hdl=%x not enough response(%d).\n",
2250                             type, sp->handle, sts->rsp_data_len);
2251                 } else if (sts->data[3]) {
2252                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2253                             "Async-%s error - hdl=%x response(%x).\n",
2254                             type, sp->handle, sts->data[3]);
2255                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2256                 }
2257         }
2258
2259         if (iocb->u.tmf.data != QLA_SUCCESS)
2260                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2261                     sts, sizeof(*sts));
2262
2263         sp->done(sp, 0);
2264 }
2265
2266 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2267     void *tsk, srb_t *sp)
2268 {
2269         fc_port_t *fcport;
2270         struct srb_iocb *iocb;
2271         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2272         uint16_t        state_flags;
2273         struct nvmefc_fcp_req *fd;
2274         uint16_t        ret = QLA_SUCCESS;
2275         __le16          comp_status = sts->comp_status;
2276         int             logit = 0;
2277
2278         iocb = &sp->u.iocb_cmd;
2279         fcport = sp->fcport;
2280         iocb->u.nvme.comp_status = comp_status;
2281         state_flags  = le16_to_cpu(sts->state_flags);
2282         fd = iocb->u.nvme.desc;
2283
2284         if (unlikely(iocb->u.nvme.aen_op))
2285                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2286
2287         if (unlikely(comp_status != CS_COMPLETE))
2288                 logit = 1;
2289
2290         fd->transferred_length = fd->payload_length -
2291             le32_to_cpu(sts->residual_len);
2292
2293         /*
2294          * State flags: Bit 6 and 0.
2295          * If 0 is set, we don't care about 6.
2296          * both cases resp was dma'd to host buffer
2297          * if both are 0, that is good path case.
2298          * if six is set and 0 is clear, we need to
2299          * copy resp data from status iocb to resp buffer.
2300          */
2301         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2302                 iocb->u.nvme.rsp_pyld_len = 0;
2303         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2304                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2305                 /* Response already DMA'd to fd->rspaddr. */
2306                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2307         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2308                 /*
2309                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2310                  * as an error.
2311                  */
2312                 iocb->u.nvme.rsp_pyld_len = 0;
2313                 fd->transferred_length = 0;
2314                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2315                         "Unexpected values in NVMe_RSP IU.\n");
2316                 logit = 1;
2317         } else if (state_flags & SF_NVME_ERSP) {
2318                 uint32_t *inbuf, *outbuf;
2319                 uint16_t iter;
2320
2321                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2322                 outbuf = (uint32_t *)fd->rspaddr;
2323                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2324                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2325                     sizeof(struct nvme_fc_ersp_iu))) {
2326                         if (ql_mask_match(ql_dbg_io)) {
2327                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2328                                     iocb->u.nvme.rsp_pyld_len);
2329                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2330                                     "Unexpected response payload length %u.\n",
2331                                     iocb->u.nvme.rsp_pyld_len);
2332                         }
2333                         iocb->u.nvme.rsp_pyld_len =
2334                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2335                 }
2336                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2337                 for (; iter; iter--)
2338                         *outbuf++ = swab32(*inbuf++);
2339         }
2340
2341         if (state_flags & SF_NVME_ERSP) {
2342                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2343                 u32 tgt_xfer_len;
2344
2345                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2346                 if (fd->transferred_length != tgt_xfer_len) {
2347                         ql_dbg(ql_dbg_io, fcport->vha, 0x3079,
2348                                 "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2349                                 tgt_xfer_len, fd->transferred_length);
2350                         logit = 1;
2351                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2352                         /*
2353                          * Do not log if this is just an underflow and there
2354                          * is no data loss.
2355                          */
2356                         logit = 0;
2357                 }
2358         }
2359
2360         if (unlikely(logit))
2361                 ql_log(ql_log_warn, fcport->vha, 0x5060,
2362                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2363                    sp->name, sp->handle, comp_status,
2364                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2365                    sts->ox_id);
2366
2367         /*
2368          * If transport error then Failure (HBA rejects request)
2369          * otherwise transport will handle.
2370          */
2371         switch (le16_to_cpu(comp_status)) {
2372         case CS_COMPLETE:
2373                 break;
2374
2375         case CS_RESET:
2376         case CS_PORT_UNAVAILABLE:
2377         case CS_PORT_LOGGED_OUT:
2378                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2379                 fallthrough;
2380         case CS_ABORTED:
2381         case CS_PORT_BUSY:
2382                 fd->transferred_length = 0;
2383                 iocb->u.nvme.rsp_pyld_len = 0;
2384                 ret = QLA_ABORTED;
2385                 break;
2386         case CS_DATA_UNDERRUN:
2387                 break;
2388         default:
2389                 ret = QLA_FUNCTION_FAILED;
2390                 break;
2391         }
2392         sp->done(sp, ret);
2393 }
2394
2395 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2396     struct vp_ctrl_entry_24xx *vce)
2397 {
2398         const char func[] = "CTRLVP-IOCB";
2399         srb_t *sp;
2400         int rval = QLA_SUCCESS;
2401
2402         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2403         if (!sp)
2404                 return;
2405
2406         if (vce->entry_status != 0) {
2407                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2408                     "%s: Failed to complete IOCB -- error status (%x)\n",
2409                     sp->name, vce->entry_status);
2410                 rval = QLA_FUNCTION_FAILED;
2411         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2412                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2413                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2414                     sp->name, le16_to_cpu(vce->comp_status),
2415                     le16_to_cpu(vce->vp_idx_failed));
2416                 rval = QLA_FUNCTION_FAILED;
2417         } else {
2418                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2419                     "Done %s.\n", __func__);
2420         }
2421
2422         sp->rc = rval;
2423         sp->done(sp, rval);
2424 }
2425
2426 /* Process a single response queue entry. */
2427 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2428                                            struct rsp_que *rsp,
2429                                            sts_entry_t *pkt)
2430 {
2431         sts21_entry_t *sts21_entry;
2432         sts22_entry_t *sts22_entry;
2433         uint16_t handle_cnt;
2434         uint16_t cnt;
2435
2436         switch (pkt->entry_type) {
2437         case STATUS_TYPE:
2438                 qla2x00_status_entry(vha, rsp, pkt);
2439                 break;
2440         case STATUS_TYPE_21:
2441                 sts21_entry = (sts21_entry_t *)pkt;
2442                 handle_cnt = sts21_entry->handle_count;
2443                 for (cnt = 0; cnt < handle_cnt; cnt++)
2444                         qla2x00_process_completed_request(vha, rsp->req,
2445                                                 sts21_entry->handle[cnt]);
2446                 break;
2447         case STATUS_TYPE_22:
2448                 sts22_entry = (sts22_entry_t *)pkt;
2449                 handle_cnt = sts22_entry->handle_count;
2450                 for (cnt = 0; cnt < handle_cnt; cnt++)
2451                         qla2x00_process_completed_request(vha, rsp->req,
2452                                                 sts22_entry->handle[cnt]);
2453                 break;
2454         case STATUS_CONT_TYPE:
2455                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2456                 break;
2457         case MBX_IOCB_TYPE:
2458                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2459                 break;
2460         case CT_IOCB_TYPE:
2461                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2462                 break;
2463         default:
2464                 /* Type Not Supported. */
2465                 ql_log(ql_log_warn, vha, 0x504a,
2466                        "Received unknown response pkt type %x entry status=%x.\n",
2467                        pkt->entry_type, pkt->entry_status);
2468                 break;
2469         }
2470 }
2471
2472 /**
2473  * qla2x00_process_response_queue() - Process response queue entries.
2474  * @rsp: response queue
2475  */
2476 void
2477 qla2x00_process_response_queue(struct rsp_que *rsp)
2478 {
2479         struct scsi_qla_host *vha;
2480         struct qla_hw_data *ha = rsp->hw;
2481         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2482         sts_entry_t     *pkt;
2483
2484         vha = pci_get_drvdata(ha->pdev);
2485
2486         if (!vha->flags.online)
2487                 return;
2488
2489         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2490                 pkt = (sts_entry_t *)rsp->ring_ptr;
2491
2492                 rsp->ring_index++;
2493                 if (rsp->ring_index == rsp->length) {
2494                         rsp->ring_index = 0;
2495                         rsp->ring_ptr = rsp->ring;
2496                 } else {
2497                         rsp->ring_ptr++;
2498                 }
2499
2500                 if (pkt->entry_status != 0) {
2501                         qla2x00_error_entry(vha, rsp, pkt);
2502                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2503                         wmb();
2504                         continue;
2505                 }
2506
2507                 qla2x00_process_response_entry(vha, rsp, pkt);
2508                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2509                 wmb();
2510         }
2511
2512         /* Adjust ring index */
2513         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2514 }
2515
2516 static inline void
2517 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2518                      uint32_t sense_len, struct rsp_que *rsp, int res)
2519 {
2520         struct scsi_qla_host *vha = sp->vha;
2521         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2522         uint32_t track_sense_len;
2523
2524         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2525                 sense_len = SCSI_SENSE_BUFFERSIZE;
2526
2527         SET_CMD_SENSE_LEN(sp, sense_len);
2528         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2529         track_sense_len = sense_len;
2530
2531         if (sense_len > par_sense_len)
2532                 sense_len = par_sense_len;
2533
2534         memcpy(cp->sense_buffer, sense_data, sense_len);
2535
2536         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2537         track_sense_len -= sense_len;
2538         SET_CMD_SENSE_LEN(sp, track_sense_len);
2539
2540         if (track_sense_len != 0) {
2541                 rsp->status_srb = sp;
2542                 cp->result = res;
2543         }
2544
2545         if (sense_len) {
2546                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2547                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2548                     sp->vha->host_no, cp->device->id, cp->device->lun,
2549                     cp);
2550                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2551                     cp->sense_buffer, sense_len);
2552         }
2553 }
2554
2555 struct scsi_dif_tuple {
2556         __be16 guard;       /* Checksum */
2557         __be16 app_tag;         /* APPL identifier */
2558         __be32 ref_tag;         /* Target LBA or indirect LBA */
2559 };
2560
2561 /*
2562  * Checks the guard or meta-data for the type of error
2563  * detected by the HBA. In case of errors, we set the
2564  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2565  * to indicate to the kernel that the HBA detected error.
2566  */
2567 static inline int
2568 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2569 {
2570         struct scsi_qla_host *vha = sp->vha;
2571         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2572         uint8_t         *ap = &sts24->data[12];
2573         uint8_t         *ep = &sts24->data[20];
2574         uint32_t        e_ref_tag, a_ref_tag;
2575         uint16_t        e_app_tag, a_app_tag;
2576         uint16_t        e_guard, a_guard;
2577
2578         /*
2579          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2580          * would make guard field appear at offset 2
2581          */
2582         a_guard   = get_unaligned_le16(ap + 2);
2583         a_app_tag = get_unaligned_le16(ap + 0);
2584         a_ref_tag = get_unaligned_le32(ap + 4);
2585         e_guard   = get_unaligned_le16(ep + 2);
2586         e_app_tag = get_unaligned_le16(ep + 0);
2587         e_ref_tag = get_unaligned_le32(ep + 4);
2588
2589         ql_dbg(ql_dbg_io, vha, 0x3023,
2590             "iocb(s) %p Returned STATUS.\n", sts24);
2591
2592         ql_dbg(ql_dbg_io, vha, 0x3024,
2593             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2594             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2595             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2596             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2597             a_app_tag, e_app_tag, a_guard, e_guard);
2598
2599         /*
2600          * Ignore sector if:
2601          * For type     3: ref & app tag is all 'f's
2602          * For type 0,1,2: app tag is all 'f's
2603          */
2604         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
2605             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
2606              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
2607                 uint32_t blocks_done, resid;
2608                 sector_t lba_s = scsi_get_lba(cmd);
2609
2610                 /* 2TB boundary case covered automatically with this */
2611                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2612
2613                 resid = scsi_bufflen(cmd) - (blocks_done *
2614                     cmd->device->sector_size);
2615
2616                 scsi_set_resid(cmd, resid);
2617                 cmd->result = DID_OK << 16;
2618
2619                 /* Update protection tag */
2620                 if (scsi_prot_sg_count(cmd)) {
2621                         uint32_t i, j = 0, k = 0, num_ent;
2622                         struct scatterlist *sg;
2623                         struct t10_pi_tuple *spt;
2624
2625                         /* Patch the corresponding protection tags */
2626                         scsi_for_each_prot_sg(cmd, sg,
2627                             scsi_prot_sg_count(cmd), i) {
2628                                 num_ent = sg_dma_len(sg) / 8;
2629                                 if (k + num_ent < blocks_done) {
2630                                         k += num_ent;
2631                                         continue;
2632                                 }
2633                                 j = blocks_done - k - 1;
2634                                 k = blocks_done;
2635                                 break;
2636                         }
2637
2638                         if (k != blocks_done) {
2639                                 ql_log(ql_log_warn, vha, 0x302f,
2640                                     "unexpected tag values tag:lba=%x:%llx)\n",
2641                                     e_ref_tag, (unsigned long long)lba_s);
2642                                 return 1;
2643                         }
2644
2645                         spt = page_address(sg_page(sg)) + sg->offset;
2646                         spt += j;
2647
2648                         spt->app_tag = T10_PI_APP_ESCAPE;
2649                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2650                                 spt->ref_tag = T10_PI_REF_ESCAPE;
2651                 }
2652
2653                 return 0;
2654         }
2655
2656         /* check guard */
2657         if (e_guard != a_guard) {
2658                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2659                     0x10, 0x1);
2660                 set_driver_byte(cmd, DRIVER_SENSE);
2661                 set_host_byte(cmd, DID_ABORT);
2662                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2663                 return 1;
2664         }
2665
2666         /* check ref tag */
2667         if (e_ref_tag != a_ref_tag) {
2668                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2669                     0x10, 0x3);
2670                 set_driver_byte(cmd, DRIVER_SENSE);
2671                 set_host_byte(cmd, DID_ABORT);
2672                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2673                 return 1;
2674         }
2675
2676         /* check appl tag */
2677         if (e_app_tag != a_app_tag) {
2678                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2679                     0x10, 0x2);
2680                 set_driver_byte(cmd, DRIVER_SENSE);
2681                 set_host_byte(cmd, DID_ABORT);
2682                 cmd->result |= SAM_STAT_CHECK_CONDITION;
2683                 return 1;
2684         }
2685
2686         return 1;
2687 }
2688
2689 static void
2690 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2691                                   struct req_que *req, uint32_t index)
2692 {
2693         struct qla_hw_data *ha = vha->hw;
2694         srb_t *sp;
2695         uint16_t        comp_status;
2696         uint16_t        scsi_status;
2697         uint16_t thread_id;
2698         uint32_t rval = EXT_STATUS_OK;
2699         struct bsg_job *bsg_job = NULL;
2700         struct fc_bsg_request *bsg_request;
2701         struct fc_bsg_reply *bsg_reply;
2702         sts_entry_t *sts = pkt;
2703         struct sts_entry_24xx *sts24 = pkt;
2704
2705         /* Validate handle. */
2706         if (index >= req->num_outstanding_cmds) {
2707                 ql_log(ql_log_warn, vha, 0x70af,
2708                     "Invalid SCSI completion handle 0x%x.\n", index);
2709                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2710                 return;
2711         }
2712
2713         sp = req->outstanding_cmds[index];
2714         if (!sp) {
2715                 ql_log(ql_log_warn, vha, 0x70b0,
2716                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2717                     req->id, index);
2718
2719                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2720                 return;
2721         }
2722
2723         /* Free outstanding command slot. */
2724         req->outstanding_cmds[index] = NULL;
2725         bsg_job = sp->u.bsg_job;
2726         bsg_request = bsg_job->request;
2727         bsg_reply = bsg_job->reply;
2728
2729         if (IS_FWI2_CAPABLE(ha)) {
2730                 comp_status = le16_to_cpu(sts24->comp_status);
2731                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2732         } else {
2733                 comp_status = le16_to_cpu(sts->comp_status);
2734                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2735         }
2736
2737         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2738         switch (comp_status) {
2739         case CS_COMPLETE:
2740                 if (scsi_status == 0) {
2741                         bsg_reply->reply_payload_rcv_len =
2742                                         bsg_job->reply_payload.payload_len;
2743                         vha->qla_stats.input_bytes +=
2744                                 bsg_reply->reply_payload_rcv_len;
2745                         vha->qla_stats.input_requests++;
2746                         rval = EXT_STATUS_OK;
2747                 }
2748                 goto done;
2749
2750         case CS_DATA_OVERRUN:
2751                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2752                     "Command completed with data overrun thread_id=%d\n",
2753                     thread_id);
2754                 rval = EXT_STATUS_DATA_OVERRUN;
2755                 break;
2756
2757         case CS_DATA_UNDERRUN:
2758                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2759                     "Command completed with data underrun thread_id=%d\n",
2760                     thread_id);
2761                 rval = EXT_STATUS_DATA_UNDERRUN;
2762                 break;
2763         case CS_BIDIR_RD_OVERRUN:
2764                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2765                     "Command completed with read data overrun thread_id=%d\n",
2766                     thread_id);
2767                 rval = EXT_STATUS_DATA_OVERRUN;
2768                 break;
2769
2770         case CS_BIDIR_RD_WR_OVERRUN:
2771                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2772                     "Command completed with read and write data overrun "
2773                     "thread_id=%d\n", thread_id);
2774                 rval = EXT_STATUS_DATA_OVERRUN;
2775                 break;
2776
2777         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2778                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2779                     "Command completed with read data over and write data "
2780                     "underrun thread_id=%d\n", thread_id);
2781                 rval = EXT_STATUS_DATA_OVERRUN;
2782                 break;
2783
2784         case CS_BIDIR_RD_UNDERRUN:
2785                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2786                     "Command completed with read data underrun "
2787                     "thread_id=%d\n", thread_id);
2788                 rval = EXT_STATUS_DATA_UNDERRUN;
2789                 break;
2790
2791         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2792                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2793                     "Command completed with read data under and write data "
2794                     "overrun thread_id=%d\n", thread_id);
2795                 rval = EXT_STATUS_DATA_UNDERRUN;
2796                 break;
2797
2798         case CS_BIDIR_RD_WR_UNDERRUN:
2799                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2800                     "Command completed with read and write data underrun "
2801                     "thread_id=%d\n", thread_id);
2802                 rval = EXT_STATUS_DATA_UNDERRUN;
2803                 break;
2804
2805         case CS_BIDIR_DMA:
2806                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2807                     "Command completed with data DMA error thread_id=%d\n",
2808                     thread_id);
2809                 rval = EXT_STATUS_DMA_ERR;
2810                 break;
2811
2812         case CS_TIMEOUT:
2813                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2814                     "Command completed with timeout thread_id=%d\n",
2815                     thread_id);
2816                 rval = EXT_STATUS_TIMEOUT;
2817                 break;
2818         default:
2819                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2820                     "Command completed with completion status=0x%x "
2821                     "thread_id=%d\n", comp_status, thread_id);
2822                 rval = EXT_STATUS_ERR;
2823                 break;
2824         }
2825         bsg_reply->reply_payload_rcv_len = 0;
2826
2827 done:
2828         /* Return the vendor specific reply to API */
2829         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2830         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2831         /* Always return DID_OK, bsg will send the vendor specific response
2832          * in this case only */
2833         sp->done(sp, DID_OK << 16);
2834
2835 }
2836
2837 /**
2838  * qla2x00_status_entry() - Process a Status IOCB entry.
2839  * @vha: SCSI driver HA context
2840  * @rsp: response queue
2841  * @pkt: Entry pointer
2842  */
2843 static void
2844 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2845 {
2846         srb_t           *sp;
2847         fc_port_t       *fcport;
2848         struct scsi_cmnd *cp;
2849         sts_entry_t *sts = pkt;
2850         struct sts_entry_24xx *sts24 = pkt;
2851         uint16_t        comp_status;
2852         uint16_t        scsi_status;
2853         uint16_t        ox_id;
2854         uint8_t         lscsi_status;
2855         int32_t         resid;
2856         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2857             fw_resid_len;
2858         uint8_t         *rsp_info, *sense_data;
2859         struct qla_hw_data *ha = vha->hw;
2860         uint32_t handle;
2861         uint16_t que;
2862         struct req_que *req;
2863         int logit = 1;
2864         int res = 0;
2865         uint16_t state_flags = 0;
2866         uint16_t sts_qual = 0;
2867
2868         if (IS_FWI2_CAPABLE(ha)) {
2869                 comp_status = le16_to_cpu(sts24->comp_status);
2870                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2871                 state_flags = le16_to_cpu(sts24->state_flags);
2872         } else {
2873                 comp_status = le16_to_cpu(sts->comp_status);
2874                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2875         }
2876         handle = (uint32_t) LSW(sts->handle);
2877         que = MSW(sts->handle);
2878         req = ha->req_q_map[que];
2879
2880         /* Check for invalid queue pointer */
2881         if (req == NULL ||
2882             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2883                 ql_dbg(ql_dbg_io, vha, 0x3059,
2884                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2885                     "que=%u.\n", sts->handle, req, que);
2886                 return;
2887         }
2888
2889         /* Validate handle. */
2890         if (handle < req->num_outstanding_cmds) {
2891                 sp = req->outstanding_cmds[handle];
2892                 if (!sp) {
2893                         ql_dbg(ql_dbg_io, vha, 0x3075,
2894                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2895                             __func__, vha->host_no, sts->handle);
2896                         return;
2897                 }
2898         } else {
2899                 ql_dbg(ql_dbg_io, vha, 0x3017,
2900                     "Invalid status handle, out of range (0x%x).\n",
2901                     sts->handle);
2902
2903                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2904                         if (IS_P3P_TYPE(ha))
2905                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2906                         else
2907                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2908                         qla2xxx_wake_dpc(vha);
2909                 }
2910                 return;
2911         }
2912         qla_put_iocbs(sp->qpair, &sp->iores);
2913
2914         if (sp->cmd_type != TYPE_SRB) {
2915                 req->outstanding_cmds[handle] = NULL;
2916                 ql_dbg(ql_dbg_io, vha, 0x3015,
2917                     "Unknown sp->cmd_type %x %p).\n",
2918                     sp->cmd_type, sp);
2919                 return;
2920         }
2921
2922         /* NVME completion. */
2923         if (sp->type == SRB_NVME_CMD) {
2924                 req->outstanding_cmds[handle] = NULL;
2925                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2926                 return;
2927         }
2928
2929         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2930                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2931                 return;
2932         }
2933
2934         /* Task Management completion. */
2935         if (sp->type == SRB_TM_CMD) {
2936                 qla24xx_tm_iocb_entry(vha, req, pkt);
2937                 return;
2938         }
2939
2940         /* Fast path completion. */
2941         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2942                 qla2x00_process_completed_request(vha, req, handle);
2943
2944                 return;
2945         }
2946
2947         req->outstanding_cmds[handle] = NULL;
2948         cp = GET_CMD_SP(sp);
2949         if (cp == NULL) {
2950                 ql_dbg(ql_dbg_io, vha, 0x3018,
2951                     "Command already returned (0x%x/%p).\n",
2952                     sts->handle, sp);
2953
2954                 return;
2955         }
2956
2957         lscsi_status = scsi_status & STATUS_MASK;
2958
2959         fcport = sp->fcport;
2960
2961         ox_id = 0;
2962         sense_len = par_sense_len = rsp_info_len = resid_len =
2963             fw_resid_len = 0;
2964         if (IS_FWI2_CAPABLE(ha)) {
2965                 if (scsi_status & SS_SENSE_LEN_VALID)
2966                         sense_len = le32_to_cpu(sts24->sense_len);
2967                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2968                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2969                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2970                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2971                 if (comp_status == CS_DATA_UNDERRUN)
2972                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2973                 rsp_info = sts24->data;
2974                 sense_data = sts24->data;
2975                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2976                 ox_id = le16_to_cpu(sts24->ox_id);
2977                 par_sense_len = sizeof(sts24->data);
2978                 sts_qual = le16_to_cpu(sts24->status_qualifier);
2979         } else {
2980                 if (scsi_status & SS_SENSE_LEN_VALID)
2981                         sense_len = le16_to_cpu(sts->req_sense_length);
2982                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2983                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2984                 resid_len = le32_to_cpu(sts->residual_length);
2985                 rsp_info = sts->rsp_info;
2986                 sense_data = sts->req_sense_data;
2987                 par_sense_len = sizeof(sts->req_sense_data);
2988         }
2989
2990         /* Check for any FCP transport errors. */
2991         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2992                 /* Sense data lies beyond any FCP RESPONSE data. */
2993                 if (IS_FWI2_CAPABLE(ha)) {
2994                         sense_data += rsp_info_len;
2995                         par_sense_len -= rsp_info_len;
2996                 }
2997                 if (rsp_info_len > 3 && rsp_info[3]) {
2998                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2999                             "FCP I/O protocol failure (0x%x/0x%x).\n",
3000                             rsp_info_len, rsp_info[3]);
3001
3002                         res = DID_BUS_BUSY << 16;
3003                         goto out;
3004                 }
3005         }
3006
3007         /* Check for overrun. */
3008         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3009             scsi_status & SS_RESIDUAL_OVER)
3010                 comp_status = CS_DATA_OVERRUN;
3011
3012         /*
3013          * Check retry_delay_timer value if we receive a busy or
3014          * queue full.
3015          */
3016         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3017                      lscsi_status == SAM_STAT_BUSY))
3018                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3019
3020         /*
3021          * Based on Host and scsi status generate status code for Linux
3022          */
3023         switch (comp_status) {
3024         case CS_COMPLETE:
3025         case CS_QUEUE_FULL:
3026                 if (scsi_status == 0) {
3027                         res = DID_OK << 16;
3028                         break;
3029                 }
3030                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3031                         resid = resid_len;
3032                         scsi_set_resid(cp, resid);
3033
3034                         if (!lscsi_status &&
3035                             ((unsigned)(scsi_bufflen(cp) - resid) <
3036                              cp->underflow)) {
3037                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3038                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3039                                     resid, scsi_bufflen(cp));
3040
3041                                 res = DID_ERROR << 16;
3042                                 break;
3043                         }
3044                 }
3045                 res = DID_OK << 16 | lscsi_status;
3046
3047                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3048                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3049                             "QUEUE FULL detected.\n");
3050                         break;
3051                 }
3052                 logit = 0;
3053                 if (lscsi_status != SS_CHECK_CONDITION)
3054                         break;
3055
3056                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3057                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3058                         break;
3059
3060                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3061                     rsp, res);
3062                 break;
3063
3064         case CS_DATA_UNDERRUN:
3065                 /* Use F/W calculated residual length. */
3066                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3067                 scsi_set_resid(cp, resid);
3068                 if (scsi_status & SS_RESIDUAL_UNDER) {
3069                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3070                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
3071                                     "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3072                                     resid, scsi_bufflen(cp));
3073
3074                                 res = DID_ERROR << 16 | lscsi_status;
3075                                 goto check_scsi_status;
3076                         }
3077
3078                         if (!lscsi_status &&
3079                             ((unsigned)(scsi_bufflen(cp) - resid) <
3080                             cp->underflow)) {
3081                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3082                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3083                                     resid, scsi_bufflen(cp));
3084
3085                                 res = DID_ERROR << 16;
3086                                 break;
3087                         }
3088                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3089                             lscsi_status != SAM_STAT_BUSY) {
3090                         /*
3091                          * scsi status of task set and busy are considered to be
3092                          * task not completed.
3093                          */
3094
3095                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
3096                             "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3097                             resid, scsi_bufflen(cp));
3098
3099                         res = DID_ERROR << 16 | lscsi_status;
3100                         goto check_scsi_status;
3101                 } else {
3102                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3103                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3104                             scsi_status, lscsi_status);
3105                 }
3106
3107                 res = DID_OK << 16 | lscsi_status;
3108                 logit = 0;
3109
3110 check_scsi_status:
3111                 /*
3112                  * Check to see if SCSI Status is non zero. If so report SCSI
3113                  * Status.
3114                  */
3115                 if (lscsi_status != 0) {
3116                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3117                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3118                                     "QUEUE FULL detected.\n");
3119                                 logit = 1;
3120                                 break;
3121                         }
3122                         if (lscsi_status != SS_CHECK_CONDITION)
3123                                 break;
3124
3125                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3126                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3127                                 break;
3128
3129                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3130                             sense_len, rsp, res);
3131                 }
3132                 break;
3133
3134         case CS_PORT_LOGGED_OUT:
3135         case CS_PORT_CONFIG_CHG:
3136         case CS_PORT_BUSY:
3137         case CS_INCOMPLETE:
3138         case CS_PORT_UNAVAILABLE:
3139         case CS_RESET:
3140
3141                 /*
3142                  * We are going to have the fc class block the rport
3143                  * while we try to recover so instruct the mid layer
3144                  * to requeue until the class decides how to handle this.
3145                  */
3146                 res = DID_TRANSPORT_DISRUPTED << 16;
3147
3148                 if (comp_status == CS_TIMEOUT) {
3149                         if (IS_FWI2_CAPABLE(ha))
3150                                 break;
3151                         else if ((le16_to_cpu(sts->status_flags) &
3152                             SF_LOGOUT_SENT) == 0)
3153                                 break;
3154                 }
3155
3156                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3157                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3158                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3159                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3160                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3161                                 port_state_str[FCS_ONLINE],
3162                                 comp_status);
3163
3164                         qlt_schedule_sess_for_deletion(fcport);
3165                 }
3166
3167                 break;
3168
3169         case CS_ABORTED:
3170                 res = DID_RESET << 16;
3171                 break;
3172
3173         case CS_DIF_ERROR:
3174                 logit = qla2x00_handle_dif_error(sp, sts24);
3175                 res = cp->result;
3176                 break;
3177
3178         case CS_TRANSPORT:
3179                 res = DID_ERROR << 16;
3180
3181                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3182                         break;
3183
3184                 if (state_flags & BIT_4)
3185                         scmd_printk(KERN_WARNING, cp,
3186                             "Unsupported device '%s' found.\n",
3187                             cp->device->vendor);
3188                 break;
3189
3190         case CS_DMA:
3191                 ql_log(ql_log_info, fcport->vha, 0x3022,
3192                     "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",
3193                     comp_status, scsi_status, res, vha->host_no,
3194                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3195                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3196                     resid_len, fw_resid_len, sp, cp);
3197                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3198                     pkt, sizeof(*sts24));
3199                 res = DID_ERROR << 16;
3200                 break;
3201         default:
3202                 res = DID_ERROR << 16;
3203                 break;
3204         }
3205
3206 out:
3207         if (logit)
3208                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3209                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
3210                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
3211                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3212                     comp_status, scsi_status, res, vha->host_no,
3213                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3214                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3215                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3216                     resid_len, fw_resid_len, sp, cp);
3217
3218         if (rsp->status_srb == NULL)
3219                 sp->done(sp, res);
3220 }
3221
3222 /**
3223  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3224  * @rsp: response queue
3225  * @pkt: Entry pointer
3226  *
3227  * Extended sense data.
3228  */
3229 static void
3230 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3231 {
3232         uint8_t sense_sz = 0;
3233         struct qla_hw_data *ha = rsp->hw;
3234         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3235         srb_t *sp = rsp->status_srb;
3236         struct scsi_cmnd *cp;
3237         uint32_t sense_len;
3238         uint8_t *sense_ptr;
3239
3240         if (!sp || !GET_CMD_SENSE_LEN(sp))
3241                 return;
3242
3243         sense_len = GET_CMD_SENSE_LEN(sp);
3244         sense_ptr = GET_CMD_SENSE_PTR(sp);
3245
3246         cp = GET_CMD_SP(sp);
3247         if (cp == NULL) {
3248                 ql_log(ql_log_warn, vha, 0x3025,
3249                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3250
3251                 rsp->status_srb = NULL;
3252                 return;
3253         }
3254
3255         if (sense_len > sizeof(pkt->data))
3256                 sense_sz = sizeof(pkt->data);
3257         else
3258                 sense_sz = sense_len;
3259
3260         /* Move sense data. */
3261         if (IS_FWI2_CAPABLE(ha))
3262                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3263         memcpy(sense_ptr, pkt->data, sense_sz);
3264         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3265                 sense_ptr, sense_sz);
3266
3267         sense_len -= sense_sz;
3268         sense_ptr += sense_sz;
3269
3270         SET_CMD_SENSE_PTR(sp, sense_ptr);
3271         SET_CMD_SENSE_LEN(sp, sense_len);
3272
3273         /* Place command on done queue. */
3274         if (sense_len == 0) {
3275                 rsp->status_srb = NULL;
3276                 sp->done(sp, cp->result);
3277         }
3278 }
3279
3280 /**
3281  * qla2x00_error_entry() - Process an error entry.
3282  * @vha: SCSI driver HA context
3283  * @rsp: response queue
3284  * @pkt: Entry pointer
3285  * return : 1=allow further error analysis. 0=no additional error analysis.
3286  */
3287 static int
3288 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3289 {
3290         srb_t *sp;
3291         struct qla_hw_data *ha = vha->hw;
3292         const char func[] = "ERROR-IOCB";
3293         uint16_t que = MSW(pkt->handle);
3294         struct req_que *req = NULL;
3295         int res = DID_ERROR << 16;
3296
3297         ql_dbg(ql_dbg_async, vha, 0x502a,
3298             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3299             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3300
3301         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3302                 goto fatal;
3303
3304         req = ha->req_q_map[que];
3305
3306         if (pkt->entry_status & RF_BUSY)
3307                 res = DID_BUS_BUSY << 16;
3308
3309         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3310                 return 0;
3311
3312         switch (pkt->entry_type) {
3313         case NOTIFY_ACK_TYPE:
3314         case STATUS_TYPE:
3315         case STATUS_CONT_TYPE:
3316         case LOGINOUT_PORT_IOCB_TYPE:
3317         case CT_IOCB_TYPE:
3318         case ELS_IOCB_TYPE:
3319         case ABORT_IOCB_TYPE:
3320         case MBX_IOCB_TYPE:
3321         default:
3322                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3323                 if (sp) {
3324                         qla_put_iocbs(sp->qpair, &sp->iores);
3325                         sp->done(sp, res);
3326                         return 0;
3327                 }
3328                 break;
3329
3330         case ABTS_RESP_24XX:
3331         case CTIO_TYPE7:
3332         case CTIO_CRC2:
3333                 return 1;
3334         }
3335 fatal:
3336         ql_log(ql_log_warn, vha, 0x5030,
3337             "Error entry - invalid handle/queue (%04x).\n", que);
3338         return 0;
3339 }
3340
3341 /**
3342  * qla24xx_mbx_completion() - Process mailbox command completions.
3343  * @vha: SCSI driver HA context
3344  * @mb0: Mailbox0 register
3345  */
3346 static void
3347 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3348 {
3349         uint16_t        cnt;
3350         uint32_t        mboxes;
3351         __le16 __iomem *wptr;
3352         struct qla_hw_data *ha = vha->hw;
3353         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3354
3355         /* Read all mbox registers? */
3356         WARN_ON_ONCE(ha->mbx_count > 32);
3357         mboxes = (1ULL << ha->mbx_count) - 1;
3358         if (!ha->mcp)
3359                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3360         else
3361                 mboxes = ha->mcp->in_mb;
3362
3363         /* Load return mailbox registers. */
3364         ha->flags.mbox_int = 1;
3365         ha->mailbox_out[0] = mb0;
3366         mboxes >>= 1;
3367         wptr = &reg->mailbox1;
3368
3369         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3370                 if (mboxes & BIT_0)
3371                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3372
3373                 mboxes >>= 1;
3374                 wptr++;
3375         }
3376 }
3377
3378 static void
3379 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3380         struct abort_entry_24xx *pkt)
3381 {
3382         const char func[] = "ABT_IOCB";
3383         srb_t *sp;
3384         struct srb_iocb *abt;
3385
3386         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3387         if (!sp)
3388                 return;
3389
3390         abt = &sp->u.iocb_cmd;
3391         abt->u.abt.comp_status = pkt->nport_handle;
3392         sp->done(sp, 0);
3393 }
3394
3395 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3396     struct pt_ls4_request *pkt, struct req_que *req)
3397 {
3398         srb_t *sp;
3399         const char func[] = "LS4_IOCB";
3400         uint16_t comp_status;
3401
3402         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3403         if (!sp)
3404                 return;
3405
3406         comp_status = le16_to_cpu(pkt->status);
3407         sp->done(sp, comp_status);
3408 }
3409
3410 /**
3411  * qla24xx_process_response_queue() - Process response queue entries.
3412  * @vha: SCSI driver HA context
3413  * @rsp: response queue
3414  */
3415 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3416         struct rsp_que *rsp)
3417 {
3418         struct sts_entry_24xx *pkt;
3419         struct qla_hw_data *ha = vha->hw;
3420         struct purex_entry_24xx *purex_entry;
3421         struct purex_item *pure_item;
3422
3423         if (!ha->flags.fw_started)
3424                 return;
3425
3426         if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) {
3427                 rsp->qpair->rcv_intr = 1;
3428                 qla_cpu_update(rsp->qpair, smp_processor_id());
3429         }
3430
3431         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3432                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3433
3434                 rsp->ring_index++;
3435                 if (rsp->ring_index == rsp->length) {
3436                         rsp->ring_index = 0;
3437                         rsp->ring_ptr = rsp->ring;
3438                 } else {
3439                         rsp->ring_ptr++;
3440                 }
3441
3442                 if (pkt->entry_status != 0) {
3443                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3444                                 goto process_err;
3445
3446                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3447                         wmb();
3448                         continue;
3449                 }
3450 process_err:
3451
3452                 switch (pkt->entry_type) {
3453                 case STATUS_TYPE:
3454                         qla2x00_status_entry(vha, rsp, pkt);
3455                         break;
3456                 case STATUS_CONT_TYPE:
3457                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3458                         break;
3459                 case VP_RPT_ID_IOCB_TYPE:
3460                         qla24xx_report_id_acquisition(vha,
3461                             (struct vp_rpt_id_entry_24xx *)pkt);
3462                         break;
3463                 case LOGINOUT_PORT_IOCB_TYPE:
3464                         qla24xx_logio_entry(vha, rsp->req,
3465                             (struct logio_entry_24xx *)pkt);
3466                         break;
3467                 case CT_IOCB_TYPE:
3468                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3469                         break;
3470                 case ELS_IOCB_TYPE:
3471                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3472                         break;
3473                 case ABTS_RECV_24XX:
3474                         if (qla_ini_mode_enabled(vha)) {
3475                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3476                                 if (!pure_item)
3477                                         break;
3478                                 qla24xx_queue_purex_item(vha, pure_item,
3479                                                          qla24xx_process_abts);
3480                                 break;
3481                         }
3482                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3483                             IS_QLA28XX(ha)) {
3484                                 /* ensure that the ATIO queue is empty */
3485                                 qlt_handle_abts_recv(vha, rsp,
3486                                     (response_t *)pkt);
3487                                 break;
3488                         } else {
3489                                 qlt_24xx_process_atio_queue(vha, 1);
3490                         }
3491                         fallthrough;
3492                 case ABTS_RESP_24XX:
3493                 case CTIO_TYPE7:
3494                 case CTIO_CRC2:
3495                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3496                         break;
3497                 case PT_LS4_REQUEST:
3498                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3499                             rsp->req);
3500                         break;
3501                 case NOTIFY_ACK_TYPE:
3502                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3503                                 qlt_response_pkt_all_vps(vha, rsp,
3504                                     (response_t *)pkt);
3505                         else
3506                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
3507                                         (struct nack_to_isp *)pkt);
3508                         break;
3509                 case MARKER_TYPE:
3510                         /* Do nothing in this case, this check is to prevent it
3511                          * from falling into default case
3512                          */
3513                         break;
3514                 case ABORT_IOCB_TYPE:
3515                         qla24xx_abort_iocb_entry(vha, rsp->req,
3516                             (struct abort_entry_24xx *)pkt);
3517                         break;
3518                 case MBX_IOCB_TYPE:
3519                         qla24xx_mbx_iocb_entry(vha, rsp->req,
3520                             (struct mbx_24xx_entry *)pkt);
3521                         break;
3522                 case VP_CTRL_IOCB_TYPE:
3523                         qla_ctrlvp_completed(vha, rsp->req,
3524                             (struct vp_ctrl_entry_24xx *)pkt);
3525                         break;
3526                 case PUREX_IOCB_TYPE:
3527                         purex_entry = (void *)pkt;
3528                         switch (purex_entry->els_frame_payload[3]) {
3529                         case ELS_RDP:
3530                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
3531                                 if (!pure_item)
3532                                         break;
3533                                 qla24xx_queue_purex_item(vha, pure_item,
3534                                                  qla24xx_process_purex_rdp);
3535                                 break;
3536                         case ELS_FPIN:
3537                                 if (!vha->hw->flags.scm_enabled) {
3538                                         ql_log(ql_log_warn, vha, 0x5094,
3539                                                "SCM not active for this port\n");
3540                                         break;
3541                                 }
3542                                 pure_item = qla27xx_copy_fpin_pkt(vha,
3543                                                           (void **)&pkt, &rsp);
3544                                 if (!pure_item)
3545                                         break;
3546                                 qla24xx_queue_purex_item(vha, pure_item,
3547                                                  qla27xx_process_purex_fpin);
3548                                 break;
3549
3550                         default:
3551                                 ql_log(ql_log_warn, vha, 0x509c,
3552                                        "Discarding ELS Request opcode 0x%x\n",
3553                                        purex_entry->els_frame_payload[3]);
3554                         }
3555                         break;
3556                 default:
3557                         /* Type Not Supported. */
3558                         ql_dbg(ql_dbg_async, vha, 0x5042,
3559                                "Received unknown response pkt type 0x%x entry status=%x.\n",
3560                                pkt->entry_type, pkt->entry_status);
3561                         break;
3562                 }
3563                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3564                 wmb();
3565         }
3566
3567         /* Adjust ring index */
3568         if (IS_P3P_TYPE(ha)) {
3569                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3570
3571                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
3572         } else {
3573                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
3574         }
3575 }
3576
3577 static void
3578 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3579 {
3580         int rval;
3581         uint32_t cnt;
3582         struct qla_hw_data *ha = vha->hw;
3583         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3584
3585         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3586             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3587                 return;
3588
3589         rval = QLA_SUCCESS;
3590         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
3591         rd_reg_dword(&reg->iobase_addr);
3592         wrt_reg_dword(&reg->iobase_window, 0x0001);
3593         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3594             rval == QLA_SUCCESS; cnt--) {
3595                 if (cnt) {
3596                         wrt_reg_dword(&reg->iobase_window, 0x0001);
3597                         udelay(10);
3598                 } else
3599                         rval = QLA_FUNCTION_TIMEOUT;
3600         }
3601         if (rval == QLA_SUCCESS)
3602                 goto next_test;
3603
3604         rval = QLA_SUCCESS;
3605         wrt_reg_dword(&reg->iobase_window, 0x0003);
3606         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
3607             rval == QLA_SUCCESS; cnt--) {
3608                 if (cnt) {
3609                         wrt_reg_dword(&reg->iobase_window, 0x0003);
3610                         udelay(10);
3611                 } else
3612                         rval = QLA_FUNCTION_TIMEOUT;
3613         }
3614         if (rval != QLA_SUCCESS)
3615                 goto done;
3616
3617 next_test:
3618         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
3619                 ql_log(ql_log_info, vha, 0x504c,
3620                     "Additional code -- 0x55AA.\n");
3621
3622 done:
3623         wrt_reg_dword(&reg->iobase_window, 0x0000);
3624         rd_reg_dword(&reg->iobase_window);
3625 }
3626
3627 /**
3628  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3629  * @irq: interrupt number
3630  * @dev_id: SCSI driver HA context
3631  *
3632  * Called by system whenever the host adapter generates an interrupt.
3633  *
3634  * Returns handled flag.
3635  */
3636 irqreturn_t
3637 qla24xx_intr_handler(int irq, void *dev_id)
3638 {
3639         scsi_qla_host_t *vha;
3640         struct qla_hw_data *ha;
3641         struct device_reg_24xx __iomem *reg;
3642         int             status;
3643         unsigned long   iter;
3644         uint32_t        stat;
3645         uint32_t        hccr;
3646         uint16_t        mb[8];
3647         struct rsp_que *rsp;
3648         unsigned long   flags;
3649         bool process_atio = false;
3650
3651         rsp = (struct rsp_que *) dev_id;
3652         if (!rsp) {
3653                 ql_log(ql_log_info, NULL, 0x5059,
3654                     "%s: NULL response queue pointer.\n", __func__);
3655                 return IRQ_NONE;
3656         }
3657
3658         ha = rsp->hw;
3659         reg = &ha->iobase->isp24;
3660         status = 0;
3661
3662         if (unlikely(pci_channel_offline(ha->pdev)))
3663                 return IRQ_HANDLED;
3664
3665         spin_lock_irqsave(&ha->hardware_lock, flags);
3666         vha = pci_get_drvdata(ha->pdev);
3667         for (iter = 50; iter--; ) {
3668                 stat = rd_reg_dword(&reg->host_status);
3669                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3670                         break;
3671                 if (stat & HSRX_RISC_PAUSED) {
3672                         if (unlikely(pci_channel_offline(ha->pdev)))
3673                                 break;
3674
3675                         hccr = rd_reg_dword(&reg->hccr);
3676
3677                         ql_log(ql_log_warn, vha, 0x504b,
3678                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3679                             hccr);
3680
3681                         qla2xxx_check_risc_status(vha);
3682
3683                         ha->isp_ops->fw_dump(vha);
3684                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3685                         break;
3686                 } else if ((stat & HSRX_RISC_INT) == 0)
3687                         break;
3688
3689                 switch (stat & 0xff) {
3690                 case INTR_ROM_MB_SUCCESS:
3691                 case INTR_ROM_MB_FAILED:
3692                 case INTR_MB_SUCCESS:
3693                 case INTR_MB_FAILED:
3694                         qla24xx_mbx_completion(vha, MSW(stat));
3695                         status |= MBX_INTERRUPT;
3696
3697                         break;
3698                 case INTR_ASYNC_EVENT:
3699                         mb[0] = MSW(stat);
3700                         mb[1] = rd_reg_word(&reg->mailbox1);
3701                         mb[2] = rd_reg_word(&reg->mailbox2);
3702                         mb[3] = rd_reg_word(&reg->mailbox3);
3703                         qla2x00_async_event(vha, rsp, mb);
3704                         break;
3705                 case INTR_RSP_QUE_UPDATE:
3706                 case INTR_RSP_QUE_UPDATE_83XX:
3707                         qla24xx_process_response_queue(vha, rsp);
3708                         break;
3709                 case INTR_ATIO_QUE_UPDATE_27XX:
3710                 case INTR_ATIO_QUE_UPDATE:
3711                         process_atio = true;
3712                         break;
3713                 case INTR_ATIO_RSP_QUE_UPDATE:
3714                         process_atio = true;
3715                         qla24xx_process_response_queue(vha, rsp);
3716                         break;
3717                 default:
3718                         ql_dbg(ql_dbg_async, vha, 0x504f,
3719                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
3720                         break;
3721                 }
3722                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3723                 rd_reg_dword_relaxed(&reg->hccr);
3724                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3725                         ndelay(3500);
3726         }
3727         qla2x00_handle_mbx_completion(ha, status);
3728         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3729
3730         if (process_atio) {
3731                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3732                 qlt_24xx_process_atio_queue(vha, 0);
3733                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3734         }
3735
3736         return IRQ_HANDLED;
3737 }
3738
3739 static irqreturn_t
3740 qla24xx_msix_rsp_q(int irq, void *dev_id)
3741 {
3742         struct qla_hw_data *ha;
3743         struct rsp_que *rsp;
3744         struct device_reg_24xx __iomem *reg;
3745         struct scsi_qla_host *vha;
3746         unsigned long flags;
3747
3748         rsp = (struct rsp_que *) dev_id;
3749         if (!rsp) {
3750                 ql_log(ql_log_info, NULL, 0x505a,
3751                     "%s: NULL response queue pointer.\n", __func__);
3752                 return IRQ_NONE;
3753         }
3754         ha = rsp->hw;
3755         reg = &ha->iobase->isp24;
3756
3757         spin_lock_irqsave(&ha->hardware_lock, flags);
3758
3759         vha = pci_get_drvdata(ha->pdev);
3760         qla24xx_process_response_queue(vha, rsp);
3761         if (!ha->flags.disable_msix_handshake) {
3762                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3763                 rd_reg_dword_relaxed(&reg->hccr);
3764         }
3765         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3766
3767         return IRQ_HANDLED;
3768 }
3769
3770 static irqreturn_t
3771 qla24xx_msix_default(int irq, void *dev_id)
3772 {
3773         scsi_qla_host_t *vha;
3774         struct qla_hw_data *ha;
3775         struct rsp_que *rsp;
3776         struct device_reg_24xx __iomem *reg;
3777         int             status;
3778         uint32_t        stat;
3779         uint32_t        hccr;
3780         uint16_t        mb[8];
3781         unsigned long flags;
3782         bool process_atio = false;
3783
3784         rsp = (struct rsp_que *) dev_id;
3785         if (!rsp) {
3786                 ql_log(ql_log_info, NULL, 0x505c,
3787                     "%s: NULL response queue pointer.\n", __func__);
3788                 return IRQ_NONE;
3789         }
3790         ha = rsp->hw;
3791         reg = &ha->iobase->isp24;
3792         status = 0;
3793
3794         spin_lock_irqsave(&ha->hardware_lock, flags);
3795         vha = pci_get_drvdata(ha->pdev);
3796         do {
3797                 stat = rd_reg_dword(&reg->host_status);
3798                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3799                         break;
3800                 if (stat & HSRX_RISC_PAUSED) {
3801                         if (unlikely(pci_channel_offline(ha->pdev)))
3802                                 break;
3803
3804                         hccr = rd_reg_dword(&reg->hccr);
3805
3806                         ql_log(ql_log_info, vha, 0x5050,
3807                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3808                             hccr);
3809
3810                         qla2xxx_check_risc_status(vha);
3811
3812                         ha->isp_ops->fw_dump(vha);
3813                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3814                         break;
3815                 } else if ((stat & HSRX_RISC_INT) == 0)
3816                         break;
3817
3818                 switch (stat & 0xff) {
3819                 case INTR_ROM_MB_SUCCESS:
3820                 case INTR_ROM_MB_FAILED:
3821                 case INTR_MB_SUCCESS:
3822                 case INTR_MB_FAILED:
3823                         qla24xx_mbx_completion(vha, MSW(stat));
3824                         status |= MBX_INTERRUPT;
3825
3826                         break;
3827                 case INTR_ASYNC_EVENT:
3828                         mb[0] = MSW(stat);
3829                         mb[1] = rd_reg_word(&reg->mailbox1);
3830                         mb[2] = rd_reg_word(&reg->mailbox2);
3831                         mb[3] = rd_reg_word(&reg->mailbox3);
3832                         qla2x00_async_event(vha, rsp, mb);
3833                         break;
3834                 case INTR_RSP_QUE_UPDATE:
3835                 case INTR_RSP_QUE_UPDATE_83XX:
3836                         qla24xx_process_response_queue(vha, rsp);
3837                         break;
3838                 case INTR_ATIO_QUE_UPDATE_27XX:
3839                 case INTR_ATIO_QUE_UPDATE:
3840                         process_atio = true;
3841                         break;
3842                 case INTR_ATIO_RSP_QUE_UPDATE:
3843                         process_atio = true;
3844                         qla24xx_process_response_queue(vha, rsp);
3845                         break;
3846                 default:
3847                         ql_dbg(ql_dbg_async, vha, 0x5051,
3848                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3849                         break;
3850                 }
3851                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3852         } while (0);
3853         qla2x00_handle_mbx_completion(ha, status);
3854         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3855
3856         if (process_atio) {
3857                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3858                 qlt_24xx_process_atio_queue(vha, 0);
3859                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3860         }
3861
3862         return IRQ_HANDLED;
3863 }
3864
3865 irqreturn_t
3866 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3867 {
3868         struct qla_hw_data *ha;
3869         struct qla_qpair *qpair;
3870
3871         qpair = dev_id;
3872         if (!qpair) {
3873                 ql_log(ql_log_info, NULL, 0x505b,
3874                     "%s: NULL response queue pointer.\n", __func__);
3875                 return IRQ_NONE;
3876         }
3877         ha = qpair->hw;
3878
3879         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3880
3881         return IRQ_HANDLED;
3882 }
3883
3884 irqreturn_t
3885 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
3886 {
3887         struct qla_hw_data *ha;
3888         struct qla_qpair *qpair;
3889         struct device_reg_24xx __iomem *reg;
3890         unsigned long flags;
3891
3892         qpair = dev_id;
3893         if (!qpair) {
3894                 ql_log(ql_log_info, NULL, 0x505b,
3895                     "%s: NULL response queue pointer.\n", __func__);
3896                 return IRQ_NONE;
3897         }
3898         ha = qpair->hw;
3899
3900         reg = &ha->iobase->isp24;
3901         spin_lock_irqsave(&ha->hardware_lock, flags);
3902         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
3903         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3904
3905         queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work);
3906
3907         return IRQ_HANDLED;
3908 }
3909
3910 /* Interrupt handling helpers. */
3911
3912 struct qla_init_msix_entry {
3913         const char *name;
3914         irq_handler_t handler;
3915 };
3916
3917 static const struct qla_init_msix_entry msix_entries[] = {
3918         { "default", qla24xx_msix_default },
3919         { "rsp_q", qla24xx_msix_rsp_q },
3920         { "atio_q", qla83xx_msix_atio_q },
3921         { "qpair_multiq", qla2xxx_msix_rsp_q },
3922         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
3923 };
3924
3925 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3926         { "qla2xxx (default)", qla82xx_msix_default },
3927         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3928 };
3929
3930 static int
3931 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3932 {
3933         int i, ret;
3934         struct qla_msix_entry *qentry;
3935         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3936         int min_vecs = QLA_BASE_VECTORS;
3937         struct irq_affinity desc = {
3938                 .pre_vectors = QLA_BASE_VECTORS,
3939         };
3940
3941         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3942             IS_ATIO_MSIX_CAPABLE(ha)) {
3943                 desc.pre_vectors++;
3944                 min_vecs++;
3945         }
3946
3947         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3948                 /* user wants to control IRQ setting for target mode */
3949                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3950                     ha->msix_count, PCI_IRQ_MSIX);
3951         } else
3952                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3953                     ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3954                     &desc);
3955
3956         if (ret < 0) {
3957                 ql_log(ql_log_fatal, vha, 0x00c7,
3958                     "MSI-X: Failed to enable support, "
3959                     "giving   up -- %d/%d.\n",
3960                     ha->msix_count, ret);
3961                 goto msix_out;
3962         } else if (ret < ha->msix_count) {
3963                 ql_log(ql_log_info, vha, 0x00c6,
3964                     "MSI-X: Using %d vectors\n", ret);
3965                 ha->msix_count = ret;
3966                 /* Recalculate queue values */
3967                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3968                         ha->max_req_queues = ha->msix_count - 1;
3969
3970                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3971                         if (QLA_TGT_MODE_ENABLED())
3972                                 ha->max_req_queues--;
3973
3974                         ha->max_rsp_queues = ha->max_req_queues;
3975
3976                         ha->max_qpairs = ha->max_req_queues - 1;
3977                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3978                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3979                 }
3980         }
3981         vha->irq_offset = desc.pre_vectors;
3982         ha->msix_entries = kcalloc(ha->msix_count,
3983                                    sizeof(struct qla_msix_entry),
3984                                    GFP_KERNEL);
3985         if (!ha->msix_entries) {
3986                 ql_log(ql_log_fatal, vha, 0x00c8,
3987                     "Failed to allocate memory for ha->msix_entries.\n");
3988                 ret = -ENOMEM;
3989                 goto free_irqs;
3990         }
3991         ha->flags.msix_enabled = 1;
3992
3993         for (i = 0; i < ha->msix_count; i++) {
3994                 qentry = &ha->msix_entries[i];
3995                 qentry->vector = pci_irq_vector(ha->pdev, i);
3996                 qentry->entry = i;
3997                 qentry->have_irq = 0;
3998                 qentry->in_use = 0;
3999                 qentry->handle = NULL;
4000         }
4001
4002         /* Enable MSI-X vectors for the base queue */
4003         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4004                 qentry = &ha->msix_entries[i];
4005                 qentry->handle = rsp;
4006                 rsp->msix = qentry;
4007                 scnprintf(qentry->name, sizeof(qentry->name),
4008                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4009                 if (IS_P3P_TYPE(ha))
4010                         ret = request_irq(qentry->vector,
4011                                 qla82xx_msix_entries[i].handler,
4012                                 0, qla82xx_msix_entries[i].name, rsp);
4013                 else
4014                         ret = request_irq(qentry->vector,
4015                                 msix_entries[i].handler,
4016                                 0, qentry->name, rsp);
4017                 if (ret)
4018                         goto msix_register_fail;
4019                 qentry->have_irq = 1;
4020                 qentry->in_use = 1;
4021         }
4022
4023         /*
4024          * If target mode is enable, also request the vector for the ATIO
4025          * queue.
4026          */
4027         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4028             IS_ATIO_MSIX_CAPABLE(ha)) {
4029                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4030                 rsp->msix = qentry;
4031                 qentry->handle = rsp;
4032                 scnprintf(qentry->name, sizeof(qentry->name),
4033                     "qla2xxx%lu_%s", vha->host_no,
4034                     msix_entries[QLA_ATIO_VECTOR].name);
4035                 qentry->in_use = 1;
4036                 ret = request_irq(qentry->vector,
4037                         msix_entries[QLA_ATIO_VECTOR].handler,
4038                         0, qentry->name, rsp);
4039                 qentry->have_irq = 1;
4040         }
4041
4042 msix_register_fail:
4043         if (ret) {
4044                 ql_log(ql_log_fatal, vha, 0x00cb,
4045                     "MSI-X: unable to register handler -- %x/%d.\n",
4046                     qentry->vector, ret);
4047                 qla2x00_free_irqs(vha);
4048                 ha->mqenable = 0;
4049                 goto msix_out;
4050         }
4051
4052         /* Enable MSI-X vector for response queue update for queue 0 */
4053         if (IS_MQUE_CAPABLE(ha) &&
4054             (ha->msixbase && ha->mqiobase && ha->max_qpairs))
4055                 ha->mqenable = 1;
4056         else
4057                 ha->mqenable = 0;
4058
4059         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4060             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4061             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4062         ql_dbg(ql_dbg_init, vha, 0x0055,
4063             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4064             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4065
4066 msix_out:
4067         return ret;
4068
4069 free_irqs:
4070         pci_free_irq_vectors(ha->pdev);
4071         goto msix_out;
4072 }
4073
4074 int
4075 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4076 {
4077         int ret = QLA_FUNCTION_FAILED;
4078         device_reg_t *reg = ha->iobase;
4079         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4080
4081         /* If possible, enable MSI-X. */
4082         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4083             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4084             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4085                 goto skip_msi;
4086
4087         if (ql2xenablemsix == 2)
4088                 goto skip_msix;
4089
4090         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4091                 (ha->pdev->subsystem_device == 0x7040 ||
4092                 ha->pdev->subsystem_device == 0x7041 ||
4093                 ha->pdev->subsystem_device == 0x1705)) {
4094                 ql_log(ql_log_warn, vha, 0x0034,
4095                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4096                         ha->pdev->subsystem_vendor,
4097                         ha->pdev->subsystem_device);
4098                 goto skip_msi;
4099         }
4100
4101         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4102                 ql_log(ql_log_warn, vha, 0x0035,
4103                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4104                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4105                 goto skip_msix;
4106         }
4107
4108         ret = qla24xx_enable_msix(ha, rsp);
4109         if (!ret) {
4110                 ql_dbg(ql_dbg_init, vha, 0x0036,
4111                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4112                     ha->chip_revision, ha->fw_attributes);
4113                 goto clear_risc_ints;
4114         }
4115
4116 skip_msix:
4117
4118         ql_log(ql_log_info, vha, 0x0037,
4119             "Falling back-to MSI mode -- ret=%d.\n", ret);
4120
4121         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4122             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4123             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4124                 goto skip_msi;
4125
4126         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4127         if (ret > 0) {
4128                 ql_dbg(ql_dbg_init, vha, 0x0038,
4129                     "MSI: Enabled.\n");
4130                 ha->flags.msi_enabled = 1;
4131         } else
4132                 ql_log(ql_log_warn, vha, 0x0039,
4133                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4134 skip_msi:
4135
4136         /* Skip INTx on ISP82xx. */
4137         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4138                 return QLA_FUNCTION_FAILED;
4139
4140         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4141             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4142             QLA2XXX_DRIVER_NAME, rsp);
4143         if (ret) {
4144                 ql_log(ql_log_warn, vha, 0x003a,
4145                     "Failed to reserve interrupt %d already in use.\n",
4146                     ha->pdev->irq);
4147                 goto fail;
4148         } else if (!ha->flags.msi_enabled) {
4149                 ql_dbg(ql_dbg_init, vha, 0x0125,
4150                     "INTa mode: Enabled.\n");
4151                 ha->flags.mr_intr_valid = 1;
4152                 /* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4153                 ha->max_qpairs = 0;
4154         }
4155
4156 clear_risc_ints:
4157         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4158                 goto fail;
4159
4160         spin_lock_irq(&ha->hardware_lock);
4161         wrt_reg_word(&reg->isp.semaphore, 0);
4162         spin_unlock_irq(&ha->hardware_lock);
4163
4164 fail:
4165         return ret;
4166 }
4167
4168 void
4169 qla2x00_free_irqs(scsi_qla_host_t *vha)
4170 {
4171         struct qla_hw_data *ha = vha->hw;
4172         struct rsp_que *rsp;
4173         struct qla_msix_entry *qentry;
4174         int i;
4175
4176         /*
4177          * We need to check that ha->rsp_q_map is valid in case we are called
4178          * from a probe failure context.
4179          */
4180         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4181                 goto free_irqs;
4182         rsp = ha->rsp_q_map[0];
4183
4184         if (ha->flags.msix_enabled) {
4185                 for (i = 0; i < ha->msix_count; i++) {
4186                         qentry = &ha->msix_entries[i];
4187                         if (qentry->have_irq) {
4188                                 irq_set_affinity_notifier(qentry->vector, NULL);
4189                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4190                         }
4191                 }
4192                 kfree(ha->msix_entries);
4193                 ha->msix_entries = NULL;
4194                 ha->flags.msix_enabled = 0;
4195                 ql_dbg(ql_dbg_init, vha, 0x0042,
4196                         "Disabled MSI-X.\n");
4197         } else {
4198                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4199         }
4200
4201 free_irqs:
4202         pci_free_irq_vectors(ha->pdev);
4203 }
4204
4205 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4206         struct qla_msix_entry *msix, int vector_type)
4207 {
4208         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4209         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4210         int ret;
4211
4212         scnprintf(msix->name, sizeof(msix->name),
4213             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4214         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4215         if (ret) {
4216                 ql_log(ql_log_fatal, vha, 0x00e6,
4217                     "MSI-X: Unable to register handler -- %x/%d.\n",
4218                     msix->vector, ret);
4219                 return ret;
4220         }
4221         msix->have_irq = 1;
4222         msix->handle = qpair;
4223         return ret;
4224 }