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 #include "qla_gbl.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/cpu.h>
  13 #include <linux/t10-pi.h>
  14 #include <scsi/scsi_tcq.h>
  15 #include <scsi/scsi_bsg_fc.h>
  16 #include <scsi/scsi_eh.h>
  17 #include <scsi/fc/fc_fs.h>
  18 #include <linux/nvme-fc-driver.h>
  19
  20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  24         sts_entry_t *);
  25 static void qla27xx_process_purex_fpin(struct scsi_qla_host *vha,
  26         struct purex_item *item);
  27 static struct purex_item *qla24xx_alloc_purex_item(scsi_qla_host_t *vha,
  28         uint16_t size);
  29 static struct purex_item *qla24xx_copy_std_pkt(struct scsi_qla_host *vha,
  30         void *pkt);
  31 static struct purex_item *qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha,
  32         void **pkt, struct rsp_que **rsp);
  33
  34 static void
  35 qla27xx_process_purex_fpin(struct scsi_qla_host *vha, struct purex_item *item)
  36 {
  37         void *pkt = &item->iocb;
  38         uint16_t pkt_size = item->size;
  39
  40         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508d,
  41                "%s: Enter\n", __func__);
  42
  43         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x508e,
  44                "-------- ELS REQ -------\n");
  45         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x508f,
  46                        pkt, pkt_size);
  47
  48         fc_host_fpin_rcv(vha->host, pkt_size, (char *)pkt, 0);
  49 }
  50
  51 const char *const port_state_str[] = {
  52         [FCS_UNKNOWN]           = "Unknown",
  53         [FCS_UNCONFIGURED]      = "UNCONFIGURED",
  54         [FCS_DEVICE_DEAD]       = "DEAD",
  55         [FCS_DEVICE_LOST]       = "LOST",
  56         [FCS_ONLINE]            = "ONLINE"
  57 };
  58
  59 #define SFP_DISABLE_LASER_INITIATED    0x15  /* Sub code of 8070 AEN */
  60 #define SFP_ENABLE_LASER_INITIATED     0x16  /* Sub code of 8070 AEN */
  61
  62 static inline void display_Laser_info(scsi_qla_host_t *vha,
  63                                       u16 mb1, u16 mb2, u16 mb3) {
  64
  65         if (mb1 == SFP_DISABLE_LASER_INITIATED)
  66                 ql_log(ql_log_warn, vha, 0xf0a2,
  67                        "SFP temperature (%d C) reached/exceeded the threshold (%d C). Laser is disabled.\n",
  68                        mb3, mb2);
  69         if (mb1 == SFP_ENABLE_LASER_INITIATED)
  70                 ql_log(ql_log_warn, vha, 0xf0a3,
  71                        "SFP temperature (%d C) reached normal operating level. Laser is enabled.\n",
  72                        mb3);
  73 }
  74
  75 static void
  76 qla24xx_process_abts(struct scsi_qla_host *vha, struct purex_item *pkt)
  77 {
  78         struct abts_entry_24xx *abts =
  79             (struct abts_entry_24xx *)&pkt->iocb;
  80         struct qla_hw_data *ha = vha->hw;
  81         struct els_entry_24xx *rsp_els;
  82         struct abts_entry_24xx *abts_rsp;
  83         dma_addr_t dma;
  84         uint32_t fctl;
  85         int rval;
  86
  87         ql_dbg(ql_dbg_init, vha, 0x0286, "%s: entered.\n", __func__);
  88
  89         ql_log(ql_log_warn, vha, 0x0287,
  90             "Processing ABTS xchg=%#x oxid=%#x rxid=%#x seqid=%#x seqcnt=%#x\n",
  91             abts->rx_xch_addr_to_abort, abts->ox_id, abts->rx_id,
  92             abts->seq_id, abts->seq_cnt);
  93         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  94             "-------- ABTS RCV -------\n");
  95         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0287,
  96             (uint8_t *)abts, sizeof(*abts));
  97
  98         rsp_els = dma_alloc_coherent(&ha->pdev->dev, sizeof(*rsp_els), &dma,
  99             GFP_KERNEL);
 100         if (!rsp_els) {
 101                 ql_log(ql_log_warn, vha, 0x0287,
 102                     "Failed allocate dma buffer ABTS/ELS RSP.\n");
 103                 return;
 104         }
 105
 106         /* terminate exchange */
 107         rsp_els->entry_type = ELS_IOCB_TYPE;
 108         rsp_els->entry_count = 1;
 109         rsp_els->nport_handle = cpu_to_le16(~0);
 110         rsp_els->rx_xchg_address = abts->rx_xch_addr_to_abort;
 111         rsp_els->control_flags = cpu_to_le16(EPD_RX_XCHG);
 112         ql_dbg(ql_dbg_init, vha, 0x0283,
 113             "Sending ELS Response to terminate exchange %#x...\n",
 114             abts->rx_xch_addr_to_abort);
 115         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 116             "-------- ELS RSP -------\n");
 117         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x0283,
 118             (uint8_t *)rsp_els, sizeof(*rsp_els));
 119         rval = qla2x00_issue_iocb(vha, rsp_els, dma, 0);
 120         if (rval) {
 121                 ql_log(ql_log_warn, vha, 0x0288,
 122                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 123         } else if (rsp_els->comp_status) {
 124                 ql_log(ql_log_warn, vha, 0x0289,
 125                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 126                     __func__, rsp_els->comp_status,
 127                     rsp_els->error_subcode_1, rsp_els->error_subcode_2);
 128         } else {
 129                 ql_dbg(ql_dbg_init, vha, 0x028a,
 130                     "%s: abort exchange done.\n", __func__);
 131         }
 132
 133         /* send ABTS response */
 134         abts_rsp = (void *)rsp_els;
 135         memset(abts_rsp, 0, sizeof(*abts_rsp));
 136         abts_rsp->entry_type = ABTS_RSP_TYPE;
 137         abts_rsp->entry_count = 1;
 138         abts_rsp->nport_handle = abts->nport_handle;
 139         abts_rsp->vp_idx = abts->vp_idx;
 140         abts_rsp->sof_type = abts->sof_type & 0xf0;
 141         abts_rsp->rx_xch_addr = abts->rx_xch_addr;
 142         abts_rsp->d_id[0] = abts->s_id[0];
 143         abts_rsp->d_id[1] = abts->s_id[1];
 144         abts_rsp->d_id[2] = abts->s_id[2];
 145         abts_rsp->r_ctl = FC_ROUTING_BLD | FC_R_CTL_BLD_BA_ACC;
 146         abts_rsp->s_id[0] = abts->d_id[0];
 147         abts_rsp->s_id[1] = abts->d_id[1];
 148         abts_rsp->s_id[2] = abts->d_id[2];
 149         abts_rsp->cs_ctl = abts->cs_ctl;
 150         /* include flipping bit23 in fctl */
 151         fctl = ~(abts->f_ctl[2] | 0x7F) << 16 |
 152             FC_F_CTL_LAST_SEQ | FC_F_CTL_END_SEQ | FC_F_CTL_SEQ_INIT;
 153         abts_rsp->f_ctl[0] = fctl >> 0 & 0xff;
 154         abts_rsp->f_ctl[1] = fctl >> 8 & 0xff;
 155         abts_rsp->f_ctl[2] = fctl >> 16 & 0xff;
 156         abts_rsp->type = FC_TYPE_BLD;
 157         abts_rsp->rx_id = abts->rx_id;
 158         abts_rsp->ox_id = abts->ox_id;
 159         abts_rsp->payload.ba_acc.aborted_rx_id = abts->rx_id;
 160         abts_rsp->payload.ba_acc.aborted_ox_id = abts->ox_id;
 161         abts_rsp->payload.ba_acc.high_seq_cnt = cpu_to_le16(~0);
 162         abts_rsp->rx_xch_addr_to_abort = abts->rx_xch_addr_to_abort;
 163         ql_dbg(ql_dbg_init, vha, 0x028b,
 164             "Sending BA ACC response to ABTS %#x...\n",
 165             abts->rx_xch_addr_to_abort);
 166         ql_dbg(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 167             "-------- ELS RSP -------\n");
 168         ql_dump_buffer(ql_dbg_init + ql_dbg_verbose, vha, 0x028b,
 169             (uint8_t *)abts_rsp, sizeof(*abts_rsp));
 170         rval = qla2x00_issue_iocb(vha, abts_rsp, dma, 0);
 171         if (rval) {
 172                 ql_log(ql_log_warn, vha, 0x028c,
 173                     "%s: iocb failed to execute -> %x\n", __func__, rval);
 174         } else if (abts_rsp->comp_status) {
 175                 ql_log(ql_log_warn, vha, 0x028d,
 176                     "%s: iocb failed to complete -> completion=%#x subcode=(%#x,%#x)\n",
 177                     __func__, abts_rsp->comp_status,
 178                     abts_rsp->payload.error.subcode1,
 179                     abts_rsp->payload.error.subcode2);
 180         } else {
 181                 ql_dbg(ql_dbg_init, vha, 0x028ea,
 182                     "%s: done.\n", __func__);
 183         }
 184
 185         dma_free_coherent(&ha->pdev->dev, sizeof(*rsp_els), rsp_els, dma);
 186 }
 187
 188 /**
 189  * __qla_consume_iocb - this routine is used to tell fw driver has processed
 190  *   or consumed the head IOCB along with the continuation IOCB's from the
 191  *   provided respond queue.
 192  * @vha: host adapter pointer
 193  * @pkt: pointer to current packet.  On return, this pointer shall move
 194  *       to the next packet.
 195  * @rsp: respond queue pointer.
 196  *
 197  * it is assumed pkt is the head iocb, not the continuation iocbk
 198  */
 199 void __qla_consume_iocb(struct scsi_qla_host *vha,
 200         void **pkt, struct rsp_que **rsp)
 201 {
 202         struct rsp_que *rsp_q = *rsp;
 203         response_t *new_pkt;
 204         uint16_t entry_count_remaining;
 205         struct purex_entry_24xx *purex = *pkt;
 206
 207         entry_count_remaining = purex->entry_count;
 208         while (entry_count_remaining > 0) {
 209                 new_pkt = rsp_q->ring_ptr;
 210                 *pkt = new_pkt;
 211
 212                 rsp_q->ring_index++;
 213                 if (rsp_q->ring_index == rsp_q->length) {
 214                         rsp_q->ring_index = 0;
 215                         rsp_q->ring_ptr = rsp_q->ring;
 216                 } else {
 217                         rsp_q->ring_ptr++;
 218                 }
 219
 220                 new_pkt->signature = RESPONSE_PROCESSED;
 221                 /* flush signature */
 222                 wmb();
 223                 --entry_count_remaining;
 224         }
 225 }
 226
 227 /**
 228  * __qla_copy_purex_to_buffer - extract ELS payload from Purex IOCB
 229  *    and save to provided buffer
 230  * @vha: host adapter pointer
 231  * @pkt: pointer Purex IOCB
 232  * @rsp: respond queue
 233  * @buf: extracted ELS payload copy here
 234  * @buf_len: buffer length
 235  */
 236 int __qla_copy_purex_to_buffer(struct scsi_qla_host *vha,
 237         void **pkt, struct rsp_que **rsp, u8 *buf, u32 buf_len)
 238 {
 239         struct purex_entry_24xx *purex = *pkt;
 240         struct rsp_que *rsp_q = *rsp;
 241         sts_cont_entry_t *new_pkt;
 242         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 243         uint16_t buffer_copy_offset = 0;
 244         uint16_t entry_count_remaining;
 245         u16 tpad;
 246
 247         entry_count_remaining = purex->entry_count;
 248         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
 249                 - PURX_ELS_HEADER_SIZE;
 250
 251         /*
 252          * end of payload may not end in 4bytes boundary.  Need to
 253          * round up / pad for room to swap, before saving data
 254          */
 255         tpad = roundup(total_bytes, 4);
 256
 257         if (buf_len < tpad) {
 258                 ql_dbg(ql_dbg_async, vha, 0x5084,
 259                     "%s buffer is too small %d < %d\n",
 260                     __func__, buf_len, tpad);
 261                 __qla_consume_iocb(vha, pkt, rsp);
 262                 return -EIO;
 263         }
 264
 265         pending_bytes = total_bytes = tpad;
 266         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
 267             sizeof(purex->els_frame_payload) : pending_bytes;
 268
 269         memcpy(buf, &purex->els_frame_payload[0], no_bytes);
 270         buffer_copy_offset += no_bytes;
 271         pending_bytes -= no_bytes;
 272         --entry_count_remaining;
 273
 274         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 275         /* flush signature */
 276         wmb();
 277
 278         do {
 279                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 280                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 281                         *pkt = new_pkt;
 282
 283                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 284                                 ql_log(ql_log_warn, vha, 0x507a,
 285                                     "Unexpected IOCB type, partial data 0x%x\n",
 286                                     buffer_copy_offset);
 287                                 break;
 288                         }
 289
 290                         rsp_q->ring_index++;
 291                         if (rsp_q->ring_index == rsp_q->length) {
 292                                 rsp_q->ring_index = 0;
 293                                 rsp_q->ring_ptr = rsp_q->ring;
 294                         } else {
 295                                 rsp_q->ring_ptr++;
 296                         }
 297                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 298                             sizeof(new_pkt->data) : pending_bytes;
 299                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 300                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 301                                     no_bytes);
 302                                 buffer_copy_offset += no_bytes;
 303                                 pending_bytes -= no_bytes;
 304                                 --entry_count_remaining;
 305                         } else {
 306                                 ql_log(ql_log_warn, vha, 0x5044,
 307                                     "Attempt to copy more that we got, optimizing..%x\n",
 308                                     buffer_copy_offset);
 309                                 memcpy((buf + buffer_copy_offset), new_pkt->data,
 310                                     total_bytes - buffer_copy_offset);
 311                         }
 312
 313                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 314                         /* flush signature */
 315                         wmb();
 316                 }
 317
 318                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 319                         ql_log(ql_log_fatal, vha, 0x508b,
 320                             "Dropping partial Data, underrun bytes = 0x%x, entry cnts 0x%x\n",
 321                             total_bytes, entry_count_remaining);
 322                         return -EIO;
 323                 }
 324         } while (entry_count_remaining > 0);
 325
 326         be32_to_cpu_array((u32 *)buf, (__be32 *)buf, total_bytes >> 2);
 327
 328         return 0;
 329 }
 330
 331 /**
 332  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
 333  * @irq: interrupt number
 334  * @dev_id: SCSI driver HA context
 335  *
 336  * Called by system whenever the host adapter generates an interrupt.
 337  *
 338  * Returns handled flag.
 339  */
 340 irqreturn_t
 341 qla2100_intr_handler(int irq, void *dev_id)
 342 {
 343         scsi_qla_host_t *vha;
 344         struct qla_hw_data *ha;
 345         struct device_reg_2xxx __iomem *reg;
 346         int             status;
 347         unsigned long   iter;
 348         uint16_t        hccr;
 349         uint16_t        mb[8];
 350         struct rsp_que *rsp;
 351         unsigned long   flags;
 352
 353         rsp = (struct rsp_que *) dev_id;
 354         if (!rsp) {
 355                 ql_log(ql_log_info, NULL, 0x505d,
 356                     "%s: NULL response queue pointer.\n", __func__);
 357                 return (IRQ_NONE);
 358         }
 359
 360         ha = rsp->hw;
 361         reg = &ha->iobase->isp;
 362         status = 0;
 363
 364         spin_lock_irqsave(&ha->hardware_lock, flags);
 365         vha = pci_get_drvdata(ha->pdev);
 366         for (iter = 50; iter--; ) {
 367                 hccr = rd_reg_word(&reg->hccr);
 368                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
 369                         break;
 370                 if (hccr & HCCR_RISC_PAUSE) {
 371                         if (pci_channel_offline(ha->pdev))
 372                                 break;
 373
 374                         /*
 375                          * Issue a "HARD" reset in order for the RISC interrupt
 376                          * bit to be cleared.  Schedule a big hammer to get
 377                          * out of the RISC PAUSED state.
 378                          */
 379                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 380                         rd_reg_word(&reg->hccr);
 381
 382                         ha->isp_ops->fw_dump(vha);
 383                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 384                         break;
 385                 } else if ((rd_reg_word(&reg->istatus) & ISR_RISC_INT) == 0)
 386                         break;
 387
 388                 if (rd_reg_word(&reg->semaphore) & BIT_0) {
 389                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 390                         rd_reg_word(&reg->hccr);
 391
 392                         /* Get mailbox data. */
 393                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
 394                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
 395                                 qla2x00_mbx_completion(vha, mb[0]);
 396                                 status |= MBX_INTERRUPT;
 397                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
 398                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 399                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 400                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 401                                 qla2x00_async_event(vha, rsp, mb);
 402                         } else {
 403                                 /*EMPTY*/
 404                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 405                                     "Unrecognized interrupt type (%d).\n",
 406                                     mb[0]);
 407                         }
 408                         /* Release mailbox registers. */
 409                         wrt_reg_word(&reg->semaphore, 0);
 410                         rd_reg_word(&reg->semaphore);
 411                 } else {
 412                         qla2x00_process_response_queue(rsp);
 413
 414                         wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 415                         rd_reg_word(&reg->hccr);
 416                 }
 417         }
 418         qla2x00_handle_mbx_completion(ha, status);
 419         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 420
 421         return (IRQ_HANDLED);
 422 }
 423
 424 bool
 425 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 426 {
 427         /* Check for PCI disconnection */
 428         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 429                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 430                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 431                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 432                         qla_schedule_eeh_work(vha);
 433                 }
 434                 return true;
 435         } else
 436                 return false;
 437 }
 438
 439 bool
 440 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 441 {
 442         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 443 }
 444
 445 /**
 446  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 447  * @irq: interrupt number
 448  * @dev_id: SCSI driver HA context
 449  *
 450  * Called by system whenever the host adapter generates an interrupt.
 451  *
 452  * Returns handled flag.
 453  */
 454 irqreturn_t
 455 qla2300_intr_handler(int irq, void *dev_id)
 456 {
 457         scsi_qla_host_t *vha;
 458         struct device_reg_2xxx __iomem *reg;
 459         int             status;
 460         unsigned long   iter;
 461         uint32_t        stat;
 462         uint16_t        hccr;
 463         uint16_t        mb[8];
 464         struct rsp_que *rsp;
 465         struct qla_hw_data *ha;
 466         unsigned long   flags;
 467
 468         rsp = (struct rsp_que *) dev_id;
 469         if (!rsp) {
 470                 ql_log(ql_log_info, NULL, 0x5058,
 471                     "%s: NULL response queue pointer.\n", __func__);
 472                 return (IRQ_NONE);
 473         }
 474
 475         ha = rsp->hw;
 476         reg = &ha->iobase->isp;
 477         status = 0;
 478
 479         spin_lock_irqsave(&ha->hardware_lock, flags);
 480         vha = pci_get_drvdata(ha->pdev);
 481         for (iter = 50; iter--; ) {
 482                 stat = rd_reg_dword(&reg->u.isp2300.host_status);
 483                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 484                         break;
 485                 if (stat & HSR_RISC_PAUSED) {
 486                         if (unlikely(pci_channel_offline(ha->pdev)))
 487                                 break;
 488
 489                         hccr = rd_reg_word(&reg->hccr);
 490
 491                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 492                                 ql_log(ql_log_warn, vha, 0x5026,
 493                                     "Parity error -- HCCR=%x, Dumping "
 494                                     "firmware.\n", hccr);
 495                         else
 496                                 ql_log(ql_log_warn, vha, 0x5027,
 497                                     "RISC paused -- HCCR=%x, Dumping "
 498                                     "firmware.\n", hccr);
 499
 500                         /*
 501                          * Issue a "HARD" reset in order for the RISC
 502                          * interrupt bit to be cleared.  Schedule a big
 503                          * hammer to get out of the RISC PAUSED state.
 504                          */
 505                         wrt_reg_word(&reg->hccr, HCCR_RESET_RISC);
 506                         rd_reg_word(&reg->hccr);
 507
 508                         ha->isp_ops->fw_dump(vha);
 509                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 510                         break;
 511                 } else if ((stat & HSR_RISC_INT) == 0)
 512                         break;
 513
 514                 switch (stat & 0xff) {
 515                 case 0x1:
 516                 case 0x2:
 517                 case 0x10:
 518                 case 0x11:
 519                         qla2x00_mbx_completion(vha, MSW(stat));
 520                         status |= MBX_INTERRUPT;
 521
 522                         /* Release mailbox registers. */
 523                         wrt_reg_word(&reg->semaphore, 0);
 524                         break;
 525                 case 0x12:
 526                         mb[0] = MSW(stat);
 527                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 528                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 529                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 530                         qla2x00_async_event(vha, rsp, mb);
 531                         break;
 532                 case 0x13:
 533                         qla2x00_process_response_queue(rsp);
 534                         break;
 535                 case 0x15:
 536                         mb[0] = MBA_CMPLT_1_16BIT;
 537                         mb[1] = MSW(stat);
 538                         qla2x00_async_event(vha, rsp, mb);
 539                         break;
 540                 case 0x16:
 541                         mb[0] = MBA_SCSI_COMPLETION;
 542                         mb[1] = MSW(stat);
 543                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 544                         qla2x00_async_event(vha, rsp, mb);
 545                         break;
 546                 default:
 547                         ql_dbg(ql_dbg_async, vha, 0x5028,
 548                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 549                         break;
 550                 }
 551                 wrt_reg_word(&reg->hccr, HCCR_CLR_RISC_INT);
 552                 rd_reg_word_relaxed(&reg->hccr);
 553         }
 554         qla2x00_handle_mbx_completion(ha, status);
 555         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 556
 557         return (IRQ_HANDLED);
 558 }
 559
 560 /**
 561  * qla2x00_mbx_completion() - Process mailbox command completions.
 562  * @vha: SCSI driver HA context
 563  * @mb0: Mailbox0 register
 564  */
 565 static void
 566 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 567 {
 568         uint16_t        cnt;
 569         uint32_t        mboxes;
 570         __le16 __iomem *wptr;
 571         struct qla_hw_data *ha = vha->hw;
 572         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 573
 574         /* Read all mbox registers? */
 575         WARN_ON_ONCE(ha->mbx_count > 32);
 576         mboxes = (1ULL << ha->mbx_count) - 1;
 577         if (!ha->mcp)
 578                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 579         else
 580                 mboxes = ha->mcp->in_mb;
 581
 582         /* Load return mailbox registers. */
 583         ha->flags.mbox_int = 1;
 584         ha->mailbox_out[0] = mb0;
 585         mboxes >>= 1;
 586         wptr = MAILBOX_REG(ha, reg, 1);
 587
 588         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 589                 if (IS_QLA2200(ha) && cnt == 8)
 590                         wptr = MAILBOX_REG(ha, reg, 8);
 591                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 592                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 593                 else if (mboxes & BIT_0)
 594                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
 595
 596                 wptr++;
 597                 mboxes >>= 1;
 598         }
 599 }
 600
 601 static void
 602 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 603 {
 604         static char *event[] =
 605                 { "Complete", "Request Notification", "Time Extension" };
 606         int rval;
 607         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 608         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 609         __le16 __iomem *wptr;
 610         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 611
 612         /* Seed data -- mailbox1 -> mailbox7. */
 613         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 614                 wptr = &reg24->mailbox1;
 615         else if (IS_QLA8044(vha->hw))
 616                 wptr = &reg82->mailbox_out[1];
 617         else
 618                 return;
 619
 620         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 621                 mb[cnt] = rd_reg_word(wptr);
 622
 623         ql_dbg(ql_dbg_async, vha, 0x5021,
 624             "Inter-Driver Communication %s -- "
 625             "%04x %04x %04x %04x %04x %04x %04x.\n",
 626             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 627             mb[4], mb[5], mb[6]);
 628         switch (aen) {
 629         /* Handle IDC Error completion case. */
 630         case MBA_IDC_COMPLETE:
 631                 if (mb[1] >> 15) {
 632                         vha->hw->flags.idc_compl_status = 1;
 633                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 634                                 complete(&vha->hw->dcbx_comp);
 635                 }
 636                 break;
 637
 638         case MBA_IDC_NOTIFY:
 639                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 640                 timeout = (descr >> 8) & 0xf;
 641                 ql_dbg(ql_dbg_async, vha, 0x5022,
 642                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 643                     vha->host_no, event[aen & 0xff], timeout);
 644
 645                 if (!timeout)
 646                         return;
 647                 rval = qla2x00_post_idc_ack_work(vha, mb);
 648                 if (rval != QLA_SUCCESS)
 649                         ql_log(ql_log_warn, vha, 0x5023,
 650                             "IDC failed to post ACK.\n");
 651                 break;
 652         case MBA_IDC_TIME_EXT:
 653                 vha->hw->idc_extend_tmo = descr;
 654                 ql_dbg(ql_dbg_async, vha, 0x5087,
 655                     "%lu Inter-Driver Communication %s -- "
 656                     "Extend timeout by=%d.\n",
 657                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 658                 break;
 659         }
 660 }
 661
 662 #define LS_UNKNOWN      2
 663 const char *
 664 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 665 {
 666         static const char *const link_speeds[] = {
 667                 "1", "2", "?", "4", "8", "16", "32", "64", "10"
 668         };
 669 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
 670
 671         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 672                 return link_speeds[0];
 673         else if (speed == 0x13)
 674                 return link_speeds[QLA_LAST_SPEED];
 675         else if (speed < QLA_LAST_SPEED)
 676                 return link_speeds[speed];
 677         else
 678                 return link_speeds[LS_UNKNOWN];
 679 }
 680
 681 static void
 682 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 683 {
 684         struct qla_hw_data *ha = vha->hw;
 685
 686         /*
 687          * 8200 AEN Interpretation:
 688          * mb[0] = AEN code
 689          * mb[1] = AEN Reason code
 690          * mb[2] = LSW of Peg-Halt Status-1 Register
 691          * mb[6] = MSW of Peg-Halt Status-1 Register
 692          * mb[3] = LSW of Peg-Halt Status-2 register
 693          * mb[7] = MSW of Peg-Halt Status-2 register
 694          * mb[4] = IDC Device-State Register value
 695          * mb[5] = IDC Driver-Presence Register value
 696          */
 697         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 698             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 699             mb[0], mb[1], mb[2], mb[6]);
 700         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 701             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 702             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 703
 704         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 705                                 IDC_HEARTBEAT_FAILURE)) {
 706                 ha->flags.nic_core_hung = 1;
 707                 ql_log(ql_log_warn, vha, 0x5060,
 708                     "83XX: F/W Error Reported: Check if reset required.\n");
 709
 710                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 711                         uint32_t protocol_engine_id, fw_err_code, err_level;
 712
 713                         /*
 714                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 715                          *  - PEG-Halt Status-1 Register:
 716                          *      (LSW = mb[2], MSW = mb[6])
 717                          *      Bits 0-7   = protocol-engine ID
 718                          *      Bits 8-28  = f/w error code
 719                          *      Bits 29-31 = Error-level
 720                          *          Error-level 0x1 = Non-Fatal error
 721                          *          Error-level 0x2 = Recoverable Fatal error
 722                          *          Error-level 0x4 = UnRecoverable Fatal error
 723                          *  - PEG-Halt Status-2 Register:
 724                          *      (LSW = mb[3], MSW = mb[7])
 725                          */
 726                         protocol_engine_id = (mb[2] & 0xff);
 727                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 728                             ((mb[6] & 0x1fff) << 8));
 729                         err_level = ((mb[6] & 0xe000) >> 13);
 730                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 731                             "Register: protocol_engine_id=0x%x "
 732                             "fw_err_code=0x%x err_level=0x%x.\n",
 733                             protocol_engine_id, fw_err_code, err_level);
 734                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 735                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 736                         if (err_level == ERR_LEVEL_NON_FATAL) {
 737                                 ql_log(ql_log_warn, vha, 0x5063,
 738                                     "Not a fatal error, f/w has recovered itself.\n");
 739                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 740                                 ql_log(ql_log_fatal, vha, 0x5064,
 741                                     "Recoverable Fatal error: Chip reset "
 742                                     "required.\n");
 743                                 qla83xx_schedule_work(vha,
 744                                     QLA83XX_NIC_CORE_RESET);
 745                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 746                                 ql_log(ql_log_fatal, vha, 0x5065,
 747                                     "Unrecoverable Fatal error: Set FAILED "
 748                                     "state, reboot required.\n");
 749                                 qla83xx_schedule_work(vha,
 750                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 751                         }
 752                 }
 753
 754                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 755                         uint16_t peg_fw_state, nw_interface_link_up;
 756                         uint16_t nw_interface_signal_detect, sfp_status;
 757                         uint16_t htbt_counter, htbt_monitor_enable;
 758                         uint16_t sfp_additional_info, sfp_multirate;
 759                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 760
 761                         /*
 762                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 763                          *  - PEG-to-FC Status Register:
 764                          *      (LSW = mb[2], MSW = mb[6])
 765                          *      Bits 0-7   = Peg-Firmware state
 766                          *      Bit 8      = N/W Interface Link-up
 767                          *      Bit 9      = N/W Interface signal detected
 768                          *      Bits 10-11 = SFP Status
 769                          *        SFP Status 0x0 = SFP+ transceiver not expected
 770                          *        SFP Status 0x1 = SFP+ transceiver not present
 771                          *        SFP Status 0x2 = SFP+ transceiver invalid
 772                          *        SFP Status 0x3 = SFP+ transceiver present and
 773                          *        valid
 774                          *      Bits 12-14 = Heartbeat Counter
 775                          *      Bit 15     = Heartbeat Monitor Enable
 776                          *      Bits 16-17 = SFP Additional Info
 777                          *        SFP info 0x0 = Unregocnized transceiver for
 778                          *        Ethernet
 779                          *        SFP info 0x1 = SFP+ brand validation failed
 780                          *        SFP info 0x2 = SFP+ speed validation failed
 781                          *        SFP info 0x3 = SFP+ access error
 782                          *      Bit 18     = SFP Multirate
 783                          *      Bit 19     = SFP Tx Fault
 784                          *      Bits 20-22 = Link Speed
 785                          *      Bits 23-27 = Reserved
 786                          *      Bits 28-30 = DCBX Status
 787                          *        DCBX Status 0x0 = DCBX Disabled
 788                          *        DCBX Status 0x1 = DCBX Enabled
 789                          *        DCBX Status 0x2 = DCBX Exchange error
 790                          *      Bit 31     = Reserved
 791                          */
 792                         peg_fw_state = (mb[2] & 0x00ff);
 793                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 794                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 795                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 796                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 797                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 798                         sfp_additional_info = (mb[6] & 0x0003);
 799                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 800                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 801                         link_speed = ((mb[6] & 0x0070) >> 4);
 802                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 803
 804                         ql_log(ql_log_warn, vha, 0x5066,
 805                             "Peg-to-Fc Status Register:\n"
 806                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 807                             "nw_interface_signal_detect=0x%x"
 808                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 809                             nw_interface_link_up, nw_interface_signal_detect,
 810                             sfp_status);
 811                         ql_log(ql_log_warn, vha, 0x5067,
 812                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 813                             "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
 814                             htbt_counter, htbt_monitor_enable,
 815                             sfp_additional_info, sfp_multirate);
 816                         ql_log(ql_log_warn, vha, 0x5068,
 817                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 818                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 819                             dcbx_status);
 820
 821                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 822                 }
 823
 824                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 825                         ql_log(ql_log_warn, vha, 0x5069,
 826                             "Heartbeat Failure encountered, chip reset "
 827                             "required.\n");
 828
 829                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 830                 }
 831         }
 832
 833         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 834                 ql_log(ql_log_info, vha, 0x506a,
 835                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 836                 if (ha->flags.nic_core_reset_owner)
 837                         return;
 838                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 839         }
 840 }
 841
 842 /**
 843  * qla27xx_copy_multiple_pkt() - Copy over purex/purls packets that can
 844  * span over multiple IOCBs.
 845  * @vha: SCSI driver HA context
 846  * @pkt: ELS packet
 847  * @rsp: Response queue
 848  * @is_purls: True, for Unsolicited Received FC-NVMe LS rsp IOCB
 849  *            false, for Unsolicited Received ELS IOCB
 850  * @byte_order: True, to change the byte ordering of iocb payload
 851  */
 852 struct purex_item *
 853 qla27xx_copy_multiple_pkt(struct scsi_qla_host *vha, void **pkt,
 854                           struct rsp_que **rsp, bool is_purls,
 855                           bool byte_order)
 856 {
 857         struct purex_entry_24xx *purex = NULL;
 858         struct pt_ls4_rx_unsol *purls = NULL;
 859         struct rsp_que *rsp_q = *rsp;
 860         sts_cont_entry_t *new_pkt;
 861         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
 862         uint16_t buffer_copy_offset = 0, payload_size = 0;
 863         uint16_t entry_count, entry_count_remaining;
 864         struct purex_item *item;
 865         void *iocb_pkt = NULL;
 866
 867         if (is_purls) {
 868                 purls = *pkt;
 869                 total_bytes = (le16_to_cpu(purls->frame_size) & 0x0FFF) -
 870                               PURX_ELS_HEADER_SIZE;
 871                 entry_count = entry_count_remaining = purls->entry_count;
 872                 payload_size = sizeof(purls->payload);
 873         } else {
 874                 purex = *pkt;
 875                 total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF) -
 876                               PURX_ELS_HEADER_SIZE;
 877                 entry_count = entry_count_remaining = purex->entry_count;
 878                 payload_size = sizeof(purex->els_frame_payload);
 879         }
 880
 881         pending_bytes = total_bytes;
 882         no_bytes = (pending_bytes > payload_size) ? payload_size :
 883                    pending_bytes;
 884         ql_dbg(ql_dbg_async, vha, 0x509a,
 885                "%s LS, frame_size 0x%x, entry count %d\n",
 886                (is_purls ? "PURLS" : "FPIN"), total_bytes, entry_count);
 887
 888         item = qla24xx_alloc_purex_item(vha, total_bytes);
 889         if (!item)
 890                 return item;
 891
 892         iocb_pkt = &item->iocb;
 893
 894         if (is_purls)
 895                 memcpy(iocb_pkt, &purls->payload[0], no_bytes);
 896         else
 897                 memcpy(iocb_pkt, &purex->els_frame_payload[0], no_bytes);
 898         buffer_copy_offset += no_bytes;
 899         pending_bytes -= no_bytes;
 900         --entry_count_remaining;
 901
 902         if (is_purls)
 903                 ((response_t *)purls)->signature = RESPONSE_PROCESSED;
 904         else
 905                 ((response_t *)purex)->signature = RESPONSE_PROCESSED;
 906         wmb();
 907
 908         do {
 909                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
 910                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
 911                                 ql_dbg(ql_dbg_async, vha, 0x5084,
 912                                        "Ran out of IOCBs, partial data 0x%x\n",
 913                                        buffer_copy_offset);
 914                                 cpu_relax();
 915                                 continue;
 916                         }
 917
 918                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
 919                         *pkt = new_pkt;
 920
 921                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
 922                                 ql_log(ql_log_warn, vha, 0x507a,
 923                                        "Unexpected IOCB type, partial data 0x%x\n",
 924                                        buffer_copy_offset);
 925                                 break;
 926                         }
 927
 928                         rsp_q->ring_index++;
 929                         if (rsp_q->ring_index == rsp_q->length) {
 930                                 rsp_q->ring_index = 0;
 931                                 rsp_q->ring_ptr = rsp_q->ring;
 932                         } else {
 933                                 rsp_q->ring_ptr++;
 934                         }
 935                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
 936                                 sizeof(new_pkt->data) : pending_bytes;
 937                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
 938                                 memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
 939                                        new_pkt->data, no_bytes);
 940                                 buffer_copy_offset += no_bytes;
 941                                 pending_bytes -= no_bytes;
 942                                 --entry_count_remaining;
 943                         } else {
 944                                 ql_log(ql_log_warn, vha, 0x5044,
 945                                        "Attempt to copy more that we got, optimizing..%x\n",
 946                                        buffer_copy_offset);
 947                                 memcpy(((uint8_t *)iocb_pkt + buffer_copy_offset),
 948                                        new_pkt->data,
 949                                        total_bytes - buffer_copy_offset);
 950                         }
 951
 952                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
 953                         wmb();
 954                 }
 955
 956                 if (pending_bytes != 0 || entry_count_remaining != 0) {
 957                         ql_log(ql_log_fatal, vha, 0x508b,
 958                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
 959                                total_bytes, entry_count_remaining);
 960                         qla24xx_free_purex_item(item);
 961                         return NULL;
 962                 }
 963         } while (entry_count_remaining > 0);
 964
 965         if (byte_order)
 966                 host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
 967
 968         return item;
 969 }
 970
 971 int
 972 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 973 {
 974         struct qla_hw_data *ha = vha->hw;
 975         scsi_qla_host_t *vp;
 976         uint32_t vp_did;
 977         unsigned long flags;
 978         int ret = 0;
 979
 980         if (!ha->num_vhosts)
 981                 return ret;
 982
 983         spin_lock_irqsave(&ha->vport_slock, flags);
 984         list_for_each_entry(vp, &ha->vp_list, list) {
 985                 vp_did = vp->d_id.b24;
 986                 if (vp_did == rscn_entry) {
 987                         ret = 1;
 988                         break;
 989                 }
 990         }
 991         spin_unlock_irqrestore(&ha->vport_slock, flags);
 992
 993         return ret;
 994 }
 995
 996 fc_port_t *
 997 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 998 {
 999         fc_port_t *f, *tf;
1000
1001         f = tf = NULL;
1002         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
1003                 if (f->loop_id == loop_id)
1004                         return f;
1005         return NULL;
1006 }
1007
1008 fc_port_t *
1009 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
1010 {
1011         fc_port_t *f, *tf;
1012
1013         f = tf = NULL;
1014         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
1015                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
1016                         if (incl_deleted)
1017                                 return f;
1018                         else if (f->deleted == 0)
1019                                 return f;
1020                 }
1021         }
1022         return NULL;
1023 }
1024
1025 fc_port_t *
1026 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
1027         u8 incl_deleted)
1028 {
1029         fc_port_t *f, *tf;
1030
1031         f = tf = NULL;
1032         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
1033                 if (f->d_id.b24 == id->b24) {
1034                         if (incl_deleted)
1035                                 return f;
1036                         else if (f->deleted == 0)
1037                                 return f;
1038                 }
1039         }
1040         return NULL;
1041 }
1042
1043 /* Shall be called only on supported adapters. */
1044 static void
1045 qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
1046 {
1047         struct qla_hw_data *ha = vha->hw;
1048         bool reset_isp_needed = false;
1049
1050         ql_log(ql_log_warn, vha, 0x02f0,
1051                "MPI Heartbeat stop. MPI reset is%s needed. "
1052                "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n",
1053                mb[1] & BIT_8 ? "" : " not",
1054                mb[0], mb[1], mb[2], mb[3]);
1055
1056         if ((mb[1] & BIT_8) == 0)
1057                 return;
1058
1059         ql_log(ql_log_warn, vha, 0x02f1,
1060                "MPI Heartbeat stop. FW dump needed\n");
1061
1062         if (ql2xfulldump_on_mpifail) {
1063                 ha->isp_ops->fw_dump(vha);
1064                 reset_isp_needed = true;
1065         }
1066
1067         ha->isp_ops->mpi_fw_dump(vha, 1);
1068
1069         if (reset_isp_needed) {
1070                 vha->hw->flags.fw_init_done = 0;
1071                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1072                 qla2xxx_wake_dpc(vha);
1073         }
1074 }
1075
1076 static struct purex_item *
1077 qla24xx_alloc_purex_item(scsi_qla_host_t *vha, uint16_t size)
1078 {
1079         struct purex_item *item = NULL;
1080         uint8_t item_hdr_size = sizeof(*item);
1081
1082         if (size > QLA_DEFAULT_PAYLOAD_SIZE) {
1083                 item = kzalloc(item_hdr_size +
1084                     (size - QLA_DEFAULT_PAYLOAD_SIZE), GFP_ATOMIC);
1085         } else {
1086                 if (atomic_inc_return(&vha->default_item.in_use) == 1) {
1087                         item = &vha->default_item;
1088                         goto initialize_purex_header;
1089                 } else {
1090                         item = kzalloc(item_hdr_size, GFP_ATOMIC);
1091                 }
1092         }
1093         if (!item) {
1094                 ql_log(ql_log_warn, vha, 0x5092,
1095                        ">> Failed allocate purex list item.\n");
1096
1097                 return NULL;
1098         }
1099
1100 initialize_purex_header:
1101         item->vha = vha;
1102         item->size = size;
1103         return item;
1104 }
1105
1106 void
1107 qla24xx_queue_purex_item(scsi_qla_host_t *vha, struct purex_item *pkt,
1108                          void (*process_item)(struct scsi_qla_host *vha,
1109                                               struct purex_item *pkt))
1110 {
1111         struct purex_list *list = &vha->purex_list;
1112         ulong flags;
1113
1114         pkt->process_item = process_item;
1115
1116         spin_lock_irqsave(&list->lock, flags);
1117         list_add_tail(&pkt->list, &list->head);
1118         spin_unlock_irqrestore(&list->lock, flags);
1119
1120         set_bit(PROCESS_PUREX_IOCB, &vha->dpc_flags);
1121 }
1122
1123 /**
1124  * qla24xx_copy_std_pkt() - Copy over purex ELS which is
1125  * contained in a single IOCB.
1126  * purex packet.
1127  * @vha: SCSI driver HA context
1128  * @pkt: ELS packet
1129  */
1130 static struct purex_item
1131 *qla24xx_copy_std_pkt(struct scsi_qla_host *vha, void *pkt)
1132 {
1133         struct purex_item *item;
1134
1135         item = qla24xx_alloc_purex_item(vha,
1136                                         QLA_DEFAULT_PAYLOAD_SIZE);
1137         if (!item)
1138                 return item;
1139
1140         memcpy(&item->iocb, pkt, sizeof(item->iocb));
1141         return item;
1142 }
1143
1144 /**
1145  * qla27xx_copy_fpin_pkt() - Copy over fpin packets that can
1146  * span over multiple IOCBs.
1147  * @vha: SCSI driver HA context
1148  * @pkt: ELS packet
1149  * @rsp: Response queue
1150  */
1151 static struct purex_item *
1152 qla27xx_copy_fpin_pkt(struct scsi_qla_host *vha, void **pkt,
1153                       struct rsp_que **rsp)
1154 {
1155         struct purex_entry_24xx *purex = *pkt;
1156         struct rsp_que *rsp_q = *rsp;
1157         sts_cont_entry_t *new_pkt;
1158         uint16_t no_bytes = 0, total_bytes = 0, pending_bytes = 0;
1159         uint16_t buffer_copy_offset = 0;
1160         uint16_t entry_count, entry_count_remaining;
1161         struct purex_item *item;
1162         void *fpin_pkt = NULL;
1163
1164         total_bytes = (le16_to_cpu(purex->frame_size) & 0x0FFF)
1165             - PURX_ELS_HEADER_SIZE;
1166         pending_bytes = total_bytes;
1167         entry_count = entry_count_remaining = purex->entry_count;
1168         no_bytes = (pending_bytes > sizeof(purex->els_frame_payload))  ?
1169                    sizeof(purex->els_frame_payload) : pending_bytes;
1170         ql_log(ql_log_info, vha, 0x509a,
1171                "FPIN ELS, frame_size 0x%x, entry count %d\n",
1172                total_bytes, entry_count);
1173
1174         item = qla24xx_alloc_purex_item(vha, total_bytes);
1175         if (!item)
1176                 return item;
1177
1178         fpin_pkt = &item->iocb;
1179
1180         memcpy(fpin_pkt, &purex->els_frame_payload[0], no_bytes);
1181         buffer_copy_offset += no_bytes;
1182         pending_bytes -= no_bytes;
1183         --entry_count_remaining;
1184
1185         ((response_t *)purex)->signature = RESPONSE_PROCESSED;
1186         wmb();
1187
1188         do {
1189                 while ((total_bytes > 0) && (entry_count_remaining > 0)) {
1190                         if (rsp_q->ring_ptr->signature == RESPONSE_PROCESSED) {
1191                                 ql_dbg(ql_dbg_async, vha, 0x5084,
1192                                        "Ran out of IOCBs, partial data 0x%x\n",
1193                                        buffer_copy_offset);
1194                                 cpu_relax();
1195                                 continue;
1196                         }
1197
1198                         new_pkt = (sts_cont_entry_t *)rsp_q->ring_ptr;
1199                         *pkt = new_pkt;
1200
1201                         if (new_pkt->entry_type != STATUS_CONT_TYPE) {
1202                                 ql_log(ql_log_warn, vha, 0x507a,
1203                                        "Unexpected IOCB type, partial data 0x%x\n",
1204                                        buffer_copy_offset);
1205                                 break;
1206                         }
1207
1208                         rsp_q->ring_index++;
1209                         if (rsp_q->ring_index == rsp_q->length) {
1210                                 rsp_q->ring_index = 0;
1211                                 rsp_q->ring_ptr = rsp_q->ring;
1212                         } else {
1213                                 rsp_q->ring_ptr++;
1214                         }
1215                         no_bytes = (pending_bytes > sizeof(new_pkt->data)) ?
1216                             sizeof(new_pkt->data) : pending_bytes;
1217                         if ((buffer_copy_offset + no_bytes) <= total_bytes) {
1218                                 memcpy(((uint8_t *)fpin_pkt +
1219                                     buffer_copy_offset), new_pkt->data,
1220                                     no_bytes);
1221                                 buffer_copy_offset += no_bytes;
1222                                 pending_bytes -= no_bytes;
1223                                 --entry_count_remaining;
1224                         } else {
1225                                 ql_log(ql_log_warn, vha, 0x5044,
1226                                        "Attempt to copy more that we got, optimizing..%x\n",
1227                                        buffer_copy_offset);
1228                                 memcpy(((uint8_t *)fpin_pkt +
1229                                     buffer_copy_offset), new_pkt->data,
1230                                     total_bytes - buffer_copy_offset);
1231                         }
1232
1233                         ((response_t *)new_pkt)->signature = RESPONSE_PROCESSED;
1234                         wmb();
1235                 }
1236
1237                 if (pending_bytes != 0 || entry_count_remaining != 0) {
1238                         ql_log(ql_log_fatal, vha, 0x508b,
1239                                "Dropping partial FPIN, underrun bytes = 0x%x, entry cnts 0x%x\n",
1240                                total_bytes, entry_count_remaining);
1241                         qla24xx_free_purex_item(item);
1242                         return NULL;
1243                 }
1244         } while (entry_count_remaining > 0);
1245         host_to_fcp_swap((uint8_t *)&item->iocb, total_bytes);
1246         return item;
1247 }
1248
1249 /**
1250  * qla2x00_async_event() - Process aynchronous events.
1251  * @vha: SCSI driver HA context
1252  * @rsp: response queue
1253  * @mb: Mailbox registers (0 - 3)
1254  */
1255 void
1256 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1257 {
1258         uint16_t        handle_cnt;
1259         uint16_t        cnt, mbx;
1260         uint32_t        handles[5];
1261         struct qla_hw_data *ha = vha->hw;
1262         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1263         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
1264         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1265         uint32_t        rscn_entry, host_pid;
1266         unsigned long   flags;
1267         fc_port_t       *fcport = NULL;
1268
1269         if (!vha->hw->flags.fw_started) {
1270                 ql_log(ql_log_warn, vha, 0x50ff,
1271                     "Dropping AEN - %04x %04x %04x %04x.\n",
1272                     mb[0], mb[1], mb[2], mb[3]);
1273                 return;
1274         }
1275
1276         /* Setup to process RIO completion. */
1277         handle_cnt = 0;
1278         if (IS_CNA_CAPABLE(ha))
1279                 goto skip_rio;
1280         switch (mb[0]) {
1281         case MBA_SCSI_COMPLETION:
1282                 handles[0] = make_handle(mb[2], mb[1]);
1283                 handle_cnt = 1;
1284                 break;
1285         case MBA_CMPLT_1_16BIT:
1286                 handles[0] = mb[1];
1287                 handle_cnt = 1;
1288                 mb[0] = MBA_SCSI_COMPLETION;
1289                 break;
1290         case MBA_CMPLT_2_16BIT:
1291                 handles[0] = mb[1];
1292                 handles[1] = mb[2];
1293                 handle_cnt = 2;
1294                 mb[0] = MBA_SCSI_COMPLETION;
1295                 break;
1296         case MBA_CMPLT_3_16BIT:
1297                 handles[0] = mb[1];
1298                 handles[1] = mb[2];
1299                 handles[2] = mb[3];
1300                 handle_cnt = 3;
1301                 mb[0] = MBA_SCSI_COMPLETION;
1302                 break;
1303         case MBA_CMPLT_4_16BIT:
1304                 handles[0] = mb[1];
1305                 handles[1] = mb[2];
1306                 handles[2] = mb[3];
1307                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1308                 handle_cnt = 4;
1309                 mb[0] = MBA_SCSI_COMPLETION;
1310                 break;
1311         case MBA_CMPLT_5_16BIT:
1312                 handles[0] = mb[1];
1313                 handles[1] = mb[2];
1314                 handles[2] = mb[3];
1315                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
1316                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
1317                 handle_cnt = 5;
1318                 mb[0] = MBA_SCSI_COMPLETION;
1319                 break;
1320         case MBA_CMPLT_2_32BIT:
1321                 handles[0] = make_handle(mb[2], mb[1]);
1322                 handles[1] = make_handle(RD_MAILBOX_REG(ha, reg, 7),
1323                                          RD_MAILBOX_REG(ha, reg, 6));
1324                 handle_cnt = 2;
1325                 mb[0] = MBA_SCSI_COMPLETION;
1326                 break;
1327         default:
1328                 break;
1329         }
1330 skip_rio:
1331         switch (mb[0]) {
1332         case MBA_SCSI_COMPLETION:       /* Fast Post */
1333                 if (!vha->flags.online)
1334                         break;
1335
1336                 for (cnt = 0; cnt < handle_cnt; cnt++)
1337                         qla2x00_process_completed_request(vha, rsp->req,
1338                                 handles[cnt]);
1339                 break;
1340
1341         case MBA_RESET:                 /* Reset */
1342                 ql_dbg(ql_dbg_async, vha, 0x5002,
1343                     "Asynchronous RESET.\n");
1344
1345                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1346                 break;
1347
1348         case MBA_SYSTEM_ERR:            /* System Error */
1349                 mbx = 0;
1350
1351                 vha->hw_err_cnt++;
1352
1353                 if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
1354                     IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1355                         u16 m[4];
1356
1357                         m[0] = rd_reg_word(&reg24->mailbox4);
1358                         m[1] = rd_reg_word(&reg24->mailbox5);
1359                         m[2] = rd_reg_word(&reg24->mailbox6);
1360                         mbx = m[3] = rd_reg_word(&reg24->mailbox7);
1361
1362                         ql_log(ql_log_warn, vha, 0x5003,
1363                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
1364                             mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
1365                 } else
1366                         ql_log(ql_log_warn, vha, 0x5003,
1367                             "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
1368                             mb[1], mb[2], mb[3]);
1369
1370                 if ((IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
1371                     rd_reg_word(&reg24->mailbox7) & BIT_8)
1372                         ha->isp_ops->mpi_fw_dump(vha, 1);
1373                 ha->isp_ops->fw_dump(vha);
1374                 ha->flags.fw_init_done = 0;
1375                 QLA_FW_STOPPED(ha);
1376
1377                 if (IS_FWI2_CAPABLE(ha)) {
1378                         if (mb[1] == 0 && mb[2] == 0) {
1379                                 ql_log(ql_log_fatal, vha, 0x5004,
1380                                     "Unrecoverable Hardware Error: adapter "
1381                                     "marked OFFLINE!\n");
1382                                 vha->flags.online = 0;
1383                                 vha->device_flags |= DFLG_DEV_FAILED;
1384                         } else {
1385                                 /* Check to see if MPI timeout occurred */
1386                                 if ((mbx & MBX_3) && (ha->port_no == 0))
1387                                         set_bit(MPI_RESET_NEEDED,
1388                                             &vha->dpc_flags);
1389
1390                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1391                         }
1392                 } else if (mb[1] == 0) {
1393                         ql_log(ql_log_fatal, vha, 0x5005,
1394                             "Unrecoverable Hardware Error: adapter marked "
1395                             "OFFLINE!\n");
1396                         vha->flags.online = 0;
1397                         vha->device_flags |= DFLG_DEV_FAILED;
1398                 } else
1399                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1400                 break;
1401
1402         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
1403                 ql_log(ql_log_warn, vha, 0x5006,
1404                     "ISP Request Transfer Error (%x).\n",  mb[1]);
1405
1406                 vha->hw_err_cnt++;
1407
1408                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1409                 break;
1410
1411         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
1412                 ql_log(ql_log_warn, vha, 0x5007,
1413                     "ISP Response Transfer Error (%x).\n", mb[1]);
1414
1415                 vha->hw_err_cnt++;
1416
1417                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1418                 break;
1419
1420         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
1421                 ql_dbg(ql_dbg_async, vha, 0x5008,
1422                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
1423                 break;
1424
1425         case MBA_LOOP_INIT_ERR:
1426                 ql_log(ql_log_warn, vha, 0x5090,
1427                     "LOOP INIT ERROR (%x).\n", mb[1]);
1428                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1429                 break;
1430
1431         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
1432                 ha->flags.lip_ae = 1;
1433
1434                 ql_dbg(ql_dbg_async, vha, 0x5009,
1435                     "LIP occurred (%x).\n", mb[1]);
1436
1437                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1438                         atomic_set(&vha->loop_state, LOOP_DOWN);
1439                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1440                         qla2x00_mark_all_devices_lost(vha);
1441                 }
1442
1443                 if (vha->vp_idx) {
1444                         atomic_set(&vha->vp_state, VP_FAILED);
1445                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1446                 }
1447
1448                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1449                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1450
1451                 vha->flags.management_server_logged_in = 0;
1452                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1453                 break;
1454
1455         case MBA_LOOP_UP:               /* Loop Up Event */
1456                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
1457                         ha->link_data_rate = PORT_SPEED_1GB;
1458                 else
1459                         ha->link_data_rate = mb[1];
1460
1461                 ql_log(ql_log_info, vha, 0x500a,
1462                     "LOOP UP detected (%s Gbps).\n",
1463                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
1464
1465                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1466                         if (mb[2] & BIT_0)
1467                                 ql_log(ql_log_info, vha, 0x11a0,
1468                                     "FEC=enabled (link up).\n");
1469                 }
1470
1471                 vha->flags.management_server_logged_in = 0;
1472                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1473
1474                 if (vha->link_down_time < vha->hw->port_down_retry_count) {
1475                         vha->short_link_down_cnt++;
1476                         vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
1477                 }
1478
1479                 break;
1480
1481         case MBA_LOOP_DOWN:             /* Loop Down Event */
1482                 SAVE_TOPO(ha);
1483                 ha->flags.lip_ae = 0;
1484                 ha->current_topology = 0;
1485                 vha->link_down_time = 0;
1486
1487                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
1488                         ? rd_reg_word(&reg24->mailbox4) : 0;
1489                 mbx = (IS_P3P_TYPE(ha)) ? rd_reg_word(&reg82->mailbox_out[4])
1490                         : mbx;
1491                 ql_log(ql_log_info, vha, 0x500b,
1492                     "LOOP DOWN detected (%x %x %x %x).\n",
1493                     mb[1], mb[2], mb[3], mbx);
1494
1495                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1496                         atomic_set(&vha->loop_state, LOOP_DOWN);
1497                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1498                         /*
1499                          * In case of loop down, restore WWPN from
1500                          * NVRAM in case of FA-WWPN capable ISP
1501                          * Restore for Physical Port only
1502                          */
1503                         if (!vha->vp_idx) {
1504                                 if (ha->flags.fawwpn_enabled &&
1505                                     (ha->current_topology == ISP_CFG_F)) {
1506                                         memcpy(vha->port_name, ha->port_name, WWN_SIZE);
1507                                         fc_host_port_name(vha->host) =
1508                                             wwn_to_u64(vha->port_name);
1509                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
1510                                             vha, 0x00d8, "LOOP DOWN detected,"
1511                                             "restore WWPN %016llx\n",
1512                                             wwn_to_u64(vha->port_name));
1513                                 }
1514
1515                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
1516                         }
1517
1518                         vha->device_flags |= DFLG_NO_CABLE;
1519                         qla2x00_mark_all_devices_lost(vha);
1520                 }
1521
1522                 if (vha->vp_idx) {
1523                         atomic_set(&vha->vp_state, VP_FAILED);
1524                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1525                 }
1526
1527                 vha->flags.management_server_logged_in = 0;
1528                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1529                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1530                 break;
1531
1532         case MBA_LIP_RESET:             /* LIP reset occurred */
1533                 ql_dbg(ql_dbg_async, vha, 0x500c,
1534                     "LIP reset occurred (%x).\n", mb[1]);
1535
1536                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1537                         atomic_set(&vha->loop_state, LOOP_DOWN);
1538                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
1539                         qla2x00_mark_all_devices_lost(vha);
1540                 }
1541
1542                 if (vha->vp_idx) {
1543                         atomic_set(&vha->vp_state, VP_FAILED);
1544                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1545                 }
1546
1547                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1548
1549                 ha->operating_mode = LOOP;
1550                 vha->flags.management_server_logged_in = 0;
1551                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1552                 break;
1553
1554         /* case MBA_DCBX_COMPLETE: */
1555         case MBA_POINT_TO_POINT:        /* Point-to-Point */
1556                 ha->flags.lip_ae = 0;
1557
1558                 if (IS_QLA2100(ha))
1559                         break;
1560
1561                 if (IS_CNA_CAPABLE(ha)) {
1562                         ql_dbg(ql_dbg_async, vha, 0x500d,
1563                             "DCBX Completed -- %04x %04x %04x.\n",
1564                             mb[1], mb[2], mb[3]);
1565                         if (ha->notify_dcbx_comp && !vha->vp_idx)
1566                                 complete(&ha->dcbx_comp);
1567
1568                 } else
1569                         ql_dbg(ql_dbg_async, vha, 0x500e,
1570                             "Asynchronous P2P MODE received.\n");
1571
1572                 /*
1573                  * Until there's a transition from loop down to loop up, treat
1574                  * this as loop down only.
1575                  */
1576                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1577                         atomic_set(&vha->loop_state, LOOP_DOWN);
1578                         if (!atomic_read(&vha->loop_down_timer))
1579                                 atomic_set(&vha->loop_down_timer,
1580                                     LOOP_DOWN_TIME);
1581                         if (!N2N_TOPO(ha))
1582                                 qla2x00_mark_all_devices_lost(vha);
1583                 }
1584
1585                 if (vha->vp_idx) {
1586                         atomic_set(&vha->vp_state, VP_FAILED);
1587                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1588                 }
1589
1590                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
1591                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1592
1593                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
1594                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1595
1596                 vha->flags.management_server_logged_in = 0;
1597                 break;
1598
1599         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
1600                 if (IS_QLA2100(ha))
1601                         break;
1602
1603                 ql_dbg(ql_dbg_async, vha, 0x500f,
1604                     "Configuration change detected: value=%x.\n", mb[1]);
1605
1606                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1607                         atomic_set(&vha->loop_state, LOOP_DOWN);
1608                         if (!atomic_read(&vha->loop_down_timer))
1609                                 atomic_set(&vha->loop_down_timer,
1610                                     LOOP_DOWN_TIME);
1611                         qla2x00_mark_all_devices_lost(vha);
1612                 }
1613
1614                 if (vha->vp_idx) {
1615                         atomic_set(&vha->vp_state, VP_FAILED);
1616                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
1617                 }
1618
1619                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1620                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1621                 break;
1622
1623         case MBA_PORT_UPDATE:           /* Port database update */
1624                 /*
1625                  * Handle only global and vn-port update events
1626                  *
1627                  * Relevant inputs:
1628                  * mb[1] = N_Port handle of changed port
1629                  * OR 0xffff for global event
1630                  * mb[2] = New login state
1631                  * 7 = Port logged out
1632                  * mb[3] = LSB is vp_idx, 0xff = all vps
1633                  *
1634                  * Skip processing if:
1635                  *       Event is global, vp_idx is NOT all vps,
1636                  *           vp_idx does not match
1637                  *       Event is not global, vp_idx does not match
1638                  */
1639                 if (IS_QLA2XXX_MIDTYPE(ha) &&
1640                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
1641                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
1642                         break;
1643
1644                 if (mb[2] == 0x7) {
1645                         ql_dbg(ql_dbg_async, vha, 0x5010,
1646                             "Port %s %04x %04x %04x.\n",
1647                             mb[1] == 0xffff ? "unavailable" : "logout",
1648                             mb[1], mb[2], mb[3]);
1649
1650                         if (mb[1] == 0xffff)
1651                                 goto global_port_update;
1652
1653                         if (mb[1] == NPH_SNS_LID(ha)) {
1654                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1655                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1656                                 break;
1657                         }
1658
1659                         /* use handle_cnt for loop id/nport handle */
1660                         if (IS_FWI2_CAPABLE(ha))
1661                                 handle_cnt = NPH_SNS;
1662                         else
1663                                 handle_cnt = SIMPLE_NAME_SERVER;
1664                         if (mb[1] == handle_cnt) {
1665                                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1666                                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1667                                 break;
1668                         }
1669
1670                         /* Port logout */
1671                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1672                         if (!fcport)
1673                                 break;
1674                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1675                                 break;
1676                         ql_dbg(ql_dbg_async, vha, 0x508a,
1677                             "Marking port lost loopid=%04x portid=%06x.\n",
1678                             fcport->loop_id, fcport->d_id.b24);
1679                         if (qla_ini_mode_enabled(vha)) {
1680                                 fcport->logout_on_delete = 0;
1681                                 qlt_schedule_sess_for_deletion(fcport);
1682                         }
1683                         break;
1684
1685 global_port_update:
1686                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1687                                 atomic_set(&vha->loop_state, LOOP_DOWN);
1688                                 atomic_set(&vha->loop_down_timer,
1689                                     LOOP_DOWN_TIME);
1690                                 vha->device_flags |= DFLG_NO_CABLE;
1691                                 qla2x00_mark_all_devices_lost(vha);
1692                         }
1693
1694                         if (vha->vp_idx) {
1695                                 atomic_set(&vha->vp_state, VP_FAILED);
1696                                 fc_vport_set_state(vha->fc_vport,
1697                                     FC_VPORT_FAILED);
1698                                 qla2x00_mark_all_devices_lost(vha);
1699                         }
1700
1701                         vha->flags.management_server_logged_in = 0;
1702                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1703                         break;
1704                 }
1705
1706                 /*
1707                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1708                  * event etc. earlier indicating loop is down) then process
1709                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1710                  */
1711                 atomic_set(&vha->loop_down_timer, 0);
1712                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1713                         !ha->flags.n2n_ae  &&
1714                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1715                         ql_dbg(ql_dbg_async, vha, 0x5011,
1716                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1717                             mb[1], mb[2], mb[3]);
1718                         break;
1719                 }
1720
1721                 ql_dbg(ql_dbg_async, vha, 0x5012,
1722                     "Port database changed %04x %04x %04x.\n",
1723                     mb[1], mb[2], mb[3]);
1724
1725                 /*
1726                  * Mark all devices as missing so we will login again.
1727                  */
1728                 atomic_set(&vha->loop_state, LOOP_UP);
1729                 vha->scan.scan_retry = 0;
1730
1731                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1732                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1733                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1734                 break;
1735
1736         case MBA_RSCN_UPDATE:           /* State Change Registration */
1737                 /* Check if the Vport has issued a SCR */
1738                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1739                         break;
1740                 /* Only handle SCNs for our Vport index. */
1741                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1742                         break;
1743
1744                 ql_log(ql_log_warn, vha, 0x5013,
1745                        "RSCN database changed -- %04x %04x %04x.\n",
1746                        mb[1], mb[2], mb[3]);
1747
1748                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1749                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1750                                 | vha->d_id.b.al_pa;
1751                 if (rscn_entry == host_pid) {
1752                         ql_dbg(ql_dbg_async, vha, 0x5014,
1753                             "Ignoring RSCN update to local host "
1754                             "port ID (%06x).\n", host_pid);
1755                         break;
1756                 }
1757
1758                 /* Ignore reserved bits from RSCN-payload. */
1759                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1760
1761                 /* Skip RSCNs for virtual ports on the same physical port */
1762                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1763                         break;
1764
1765                 atomic_set(&vha->loop_down_timer, 0);
1766                 vha->flags.management_server_logged_in = 0;
1767                 {
1768                         struct event_arg ea;
1769
1770                         memset(&ea, 0, sizeof(ea));
1771                         ea.id.b24 = rscn_entry;
1772                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1773                         qla2x00_handle_rscn(vha, &ea);
1774                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1775                 }
1776                 break;
1777         case MBA_CONGN_NOTI_RECV:
1778                 if (!ha->flags.scm_enabled ||
1779                     mb[1] != QLA_CON_PRIMITIVE_RECEIVED)
1780                         break;
1781
1782                 if (mb[2] == QLA_CONGESTION_ARB_WARNING) {
1783                         ql_dbg(ql_dbg_async, vha, 0x509b,
1784                                "Congestion Warning %04x %04x.\n", mb[1], mb[2]);
1785                 } else if (mb[2] == QLA_CONGESTION_ARB_ALARM) {
1786                         ql_log(ql_log_warn, vha, 0x509b,
1787                                "Congestion Alarm %04x %04x.\n", mb[1], mb[2]);
1788                 }
1789                 break;
1790         /* case MBA_RIO_RESPONSE: */
1791         case MBA_ZIO_RESPONSE:
1792                 ql_dbg(ql_dbg_async, vha, 0x5015,
1793                     "[R|Z]IO update completion.\n");
1794
1795                 if (IS_FWI2_CAPABLE(ha))
1796                         qla24xx_process_response_queue(vha, rsp);
1797                 else
1798                         qla2x00_process_response_queue(rsp);
1799                 break;
1800
1801         case MBA_DISCARD_RND_FRAME:
1802                 ql_dbg(ql_dbg_async, vha, 0x5016,
1803                     "Discard RND Frame -- %04x %04x %04x.\n",
1804                     mb[1], mb[2], mb[3]);
1805                 vha->interface_err_cnt++;
1806                 break;
1807
1808         case MBA_TRACE_NOTIFICATION:
1809                 ql_dbg(ql_dbg_async, vha, 0x5017,
1810                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1811                 break;
1812
1813         case MBA_ISP84XX_ALERT:
1814                 ql_dbg(ql_dbg_async, vha, 0x5018,
1815                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1816                     mb[1], mb[2], mb[3]);
1817
1818                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1819                 switch (mb[1]) {
1820                 case A84_PANIC_RECOVERY:
1821                         ql_log(ql_log_info, vha, 0x5019,
1822                             "Alert 84XX: panic recovery %04x %04x.\n",
1823                             mb[2], mb[3]);
1824                         break;
1825                 case A84_OP_LOGIN_COMPLETE:
1826                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1827                         ql_log(ql_log_info, vha, 0x501a,
1828                             "Alert 84XX: firmware version %x.\n",
1829                             ha->cs84xx->op_fw_version);
1830                         break;
1831                 case A84_DIAG_LOGIN_COMPLETE:
1832                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1833                         ql_log(ql_log_info, vha, 0x501b,
1834                             "Alert 84XX: diagnostic firmware version %x.\n",
1835                             ha->cs84xx->diag_fw_version);
1836                         break;
1837                 case A84_GOLD_LOGIN_COMPLETE:
1838                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1839                         ha->cs84xx->fw_update = 1;
1840                         ql_log(ql_log_info, vha, 0x501c,
1841                             "Alert 84XX: gold firmware version %x.\n",
1842                             ha->cs84xx->gold_fw_version);
1843                         break;
1844                 default:
1845                         ql_log(ql_log_warn, vha, 0x501d,
1846                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1847                             mb[1], mb[2], mb[3]);
1848                 }
1849                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1850                 break;
1851         case MBA_DCBX_START:
1852                 ql_dbg(ql_dbg_async, vha, 0x501e,
1853                     "DCBX Started -- %04x %04x %04x.\n",
1854                     mb[1], mb[2], mb[3]);
1855                 break;
1856         case MBA_DCBX_PARAM_UPDATE:
1857                 ql_dbg(ql_dbg_async, vha, 0x501f,
1858                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1859                     mb[1], mb[2], mb[3]);
1860                 break;
1861         case MBA_FCF_CONF_ERR:
1862                 ql_dbg(ql_dbg_async, vha, 0x5020,
1863                     "FCF Configuration Error -- %04x %04x %04x.\n",
1864                     mb[1], mb[2], mb[3]);
1865                 break;
1866         case MBA_IDC_NOTIFY:
1867                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1868                         mb[4] = rd_reg_word(&reg24->mailbox4);
1869                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1870                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1871                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1872                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1873                                 /*
1874                                  * Extend loop down timer since port is active.
1875                                  */
1876                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1877                                         atomic_set(&vha->loop_down_timer,
1878                                             LOOP_DOWN_TIME);
1879                                 qla2xxx_wake_dpc(vha);
1880                         }
1881                 }
1882                 fallthrough;
1883         case MBA_IDC_COMPLETE:
1884                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1885                         complete(&ha->lb_portup_comp);
1886                 fallthrough;
1887         case MBA_IDC_TIME_EXT:
1888                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1889                     IS_QLA8044(ha))
1890                         qla81xx_idc_event(vha, mb[0], mb[1]);
1891                 break;
1892
1893         case MBA_IDC_AEN:
1894                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1895                         vha->hw_err_cnt++;
1896                         qla27xx_handle_8200_aen(vha, mb);
1897                 } else if (IS_QLA83XX(ha)) {
1898                         mb[4] = rd_reg_word(&reg24->mailbox4);
1899                         mb[5] = rd_reg_word(&reg24->mailbox5);
1900                         mb[6] = rd_reg_word(&reg24->mailbox6);
1901                         mb[7] = rd_reg_word(&reg24->mailbox7);
1902                         qla83xx_handle_8200_aen(vha, mb);
1903                 } else {
1904                         ql_dbg(ql_dbg_async, vha, 0x5052,
1905                             "skip Heartbeat processing mb0-3=[0x%04x] [0x%04x] [0x%04x] [0x%04x]\n",
1906                             mb[0], mb[1], mb[2], mb[3]);
1907                 }
1908                 break;
1909
1910         case MBA_DPORT_DIAGNOSTICS:
1911                 if ((mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_NOERR ||
1912                     (mb[1] & 0xF) == AEN_DONE_DIAG_TEST_WITH_ERR)
1913                         vha->dport_status &= ~DPORT_DIAG_IN_PROGRESS;
1914                 ql_dbg(ql_dbg_async, vha, 0x5052,
1915                     "D-Port Diagnostics: %04x %04x %04x %04x\n",
1916                     mb[0], mb[1], mb[2], mb[3]);
1917                 memcpy(vha->dport_data, mb, sizeof(vha->dport_data));
1918                 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
1919                         static char *results[] = {
1920                             "start", "done(pass)", "done(error)", "undefined" };
1921                         static char *types[] = {
1922                             "none", "dynamic", "static", "other" };
1923                         uint result = mb[1] >> 0 & 0x3;
1924                         uint type = mb[1] >> 6 & 0x3;
1925                         uint sw = mb[1] >> 15 & 0x1;
1926                         ql_dbg(ql_dbg_async, vha, 0x5052,
1927                             "D-Port Diagnostics: result=%s type=%s [sw=%u]\n",
1928                             results[result], types[type], sw);
1929                         if (result == 2) {
1930                                 static char *reasons[] = {
1931                                     "reserved", "unexpected reject",
1932                                     "unexpected phase", "retry exceeded",
1933                                     "timed out", "not supported",
1934                                     "user stopped" };
1935                                 uint reason = mb[2] >> 0 & 0xf;
1936                                 uint phase = mb[2] >> 12 & 0xf;
1937                                 ql_dbg(ql_dbg_async, vha, 0x5052,
1938                                     "D-Port Diagnostics: reason=%s phase=%u \n",
1939                                     reason < 7 ? reasons[reason] : "other",
1940                                     phase >> 1);
1941                         }
1942                 }
1943                 break;
1944
1945         case MBA_TEMPERATURE_ALERT:
1946                 if (IS_QLA27XX(ha) || IS_QLA28XX(ha))
1947                         display_Laser_info(vha, mb[1], mb[2], mb[3]);
1948                 ql_dbg(ql_dbg_async, vha, 0x505e,
1949                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1950                 break;
1951
1952         case MBA_TRANS_INSERT:
1953                 ql_dbg(ql_dbg_async, vha, 0x5091,
1954                     "Transceiver Insertion: %04x\n", mb[1]);
1955                 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
1956                 break;
1957
1958         case MBA_TRANS_REMOVE:
1959                 ql_dbg(ql_dbg_async, vha, 0x5091, "Transceiver Removal\n");
1960                 break;
1961
1962         default:
1963                 ql_dbg(ql_dbg_async, vha, 0x5057,
1964                     "Unknown AEN:%04x %04x %04x %04x\n",
1965                     mb[0], mb[1], mb[2], mb[3]);
1966         }
1967
1968         qlt_async_event(mb[0], vha, mb);
1969
1970         if (!vha->vp_idx && ha->num_vhosts)
1971                 qla2x00_alert_all_vps(rsp, mb);
1972 }
1973
1974 /**
1975  * qla2x00_process_completed_request() - Process a Fast Post response.
1976  * @vha: SCSI driver HA context
1977  * @req: request queue
1978  * @index: SRB index
1979  */
1980 void
1981 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1982                                   struct req_que *req, uint32_t index)
1983 {
1984         srb_t *sp;
1985         struct qla_hw_data *ha = vha->hw;
1986
1987         /* Validate handle. */
1988         if (index >= req->num_outstanding_cmds) {
1989                 ql_log(ql_log_warn, vha, 0x3014,
1990                     "Invalid SCSI command index (%x).\n", index);
1991
1992                 if (IS_P3P_TYPE(ha))
1993                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1994                 else
1995                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1996                 return;
1997         }
1998
1999         sp = req->outstanding_cmds[index];
2000         if (sp) {
2001                 /* Free outstanding command slot. */
2002                 req->outstanding_cmds[index] = NULL;
2003
2004                 /* Save ISP completion status */
2005                 sp->done(sp, DID_OK << 16);
2006         } else {
2007                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
2008
2009                 if (IS_P3P_TYPE(ha))
2010                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2011                 else
2012                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2013         }
2014 }
2015
2016 static srb_t *
2017 qla_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
2018                        struct req_que *req, void *iocb, u16 *ret_index)
2019 {
2020         struct qla_hw_data *ha = vha->hw;
2021         sts_entry_t *pkt = iocb;
2022         srb_t *sp;
2023         uint16_t index;
2024
2025         if (pkt->handle == QLA_SKIP_HANDLE)
2026                 return NULL;
2027
2028         index = LSW(pkt->handle);
2029         if (index >= req->num_outstanding_cmds) {
2030                 ql_log(ql_log_warn, vha, 0x5031,
2031                            "%s: Invalid command index (%x) type %8ph.\n",
2032                            func, index, iocb);
2033                 if (IS_P3P_TYPE(ha))
2034                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2035                 else
2036                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2037                 return NULL;
2038         }
2039         sp = req->outstanding_cmds[index];
2040         if (!sp) {
2041                 ql_log(ql_log_warn, vha, 0x5032,
2042                         "%s: Invalid completion handle (%x) -- timed-out.\n",
2043                         func, index);
2044                 return NULL;
2045         }
2046         if (sp->handle != index) {
2047                 ql_log(ql_log_warn, vha, 0x5033,
2048                         "%s: SRB handle (%x) mismatch %x.\n", func,
2049                         sp->handle, index);
2050                 return NULL;
2051         }
2052
2053         *ret_index = index;
2054         qla_put_fw_resources(sp->qpair, &sp->iores);
2055         return sp;
2056 }
2057
2058 srb_t *
2059 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
2060                            struct req_que *req, void *iocb)
2061 {
2062         uint16_t index;
2063         srb_t *sp;
2064
2065         sp = qla_get_sp_from_handle(vha, func, req, iocb, &index);
2066         if (sp)
2067                 req->outstanding_cmds[index] = NULL;
2068
2069         return sp;
2070 }
2071
2072 static void
2073 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2074     struct mbx_entry *mbx)
2075 {
2076         const char func[] = "MBX-IOCB";
2077         const char *type;
2078         fc_port_t *fcport;
2079         srb_t *sp;
2080         struct srb_iocb *lio;
2081         uint16_t *data;
2082         uint16_t status;
2083
2084         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
2085         if (!sp)
2086                 return;
2087
2088         lio = &sp->u.iocb_cmd;
2089         type = sp->name;
2090         fcport = sp->fcport;
2091         data = lio->u.logio.data;
2092
2093         data[0] = MBS_COMMAND_ERROR;
2094         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2095             QLA_LOGIO_LOGIN_RETRIED : 0;
2096         if (mbx->entry_status) {
2097                 ql_dbg(ql_dbg_async, vha, 0x5043,
2098                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
2099                     "entry-status=%x status=%x state-flag=%x "
2100                     "status-flags=%x.\n", type, sp->handle,
2101                     fcport->d_id.b.domain, fcport->d_id.b.area,
2102                     fcport->d_id.b.al_pa, mbx->entry_status,
2103                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
2104                     le16_to_cpu(mbx->status_flags));
2105
2106                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
2107                     mbx, sizeof(*mbx));
2108
2109                 goto logio_done;
2110         }
2111
2112         status = le16_to_cpu(mbx->status);
2113         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
2114             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
2115                 status = 0;
2116         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
2117                 ql_dbg(ql_dbg_async, vha, 0x5045,
2118                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
2119                     type, sp->handle, fcport->d_id.b.domain,
2120                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2121                     le16_to_cpu(mbx->mb1));
2122
2123                 data[0] = MBS_COMMAND_COMPLETE;
2124                 if (sp->type == SRB_LOGIN_CMD) {
2125                         fcport->port_type = FCT_TARGET;
2126                         if (le16_to_cpu(mbx->mb1) & BIT_0)
2127                                 fcport->port_type = FCT_INITIATOR;
2128                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
2129                                 fcport->flags |= FCF_FCP2_DEVICE;
2130                 }
2131                 goto logio_done;
2132         }
2133
2134         data[0] = le16_to_cpu(mbx->mb0);
2135         switch (data[0]) {
2136         case MBS_PORT_ID_USED:
2137                 data[1] = le16_to_cpu(mbx->mb1);
2138                 break;
2139         case MBS_LOOP_ID_USED:
2140                 break;
2141         default:
2142                 data[0] = MBS_COMMAND_ERROR;
2143                 break;
2144         }
2145
2146         ql_log(ql_log_warn, vha, 0x5046,
2147             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
2148             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
2149             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
2150             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
2151             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
2152             le16_to_cpu(mbx->mb7));
2153
2154 logio_done:
2155         sp->done(sp, 0);
2156 }
2157
2158 static void
2159 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2160     struct mbx_24xx_entry *pkt)
2161 {
2162         const char func[] = "MBX-IOCB2";
2163         struct qla_hw_data *ha = vha->hw;
2164         srb_t *sp;
2165         struct srb_iocb *si;
2166         u16 sz, i;
2167         int res;
2168
2169         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2170         if (!sp)
2171                 return;
2172
2173         if (sp->type == SRB_SCSI_CMD ||
2174             sp->type == SRB_NVME_CMD ||
2175             sp->type == SRB_TM_CMD) {
2176                 ql_log(ql_log_warn, vha, 0x509d,
2177                         "Inconsistent event entry type %d\n", sp->type);
2178                 if (IS_P3P_TYPE(ha))
2179                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2180                 else
2181                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2182                 return;
2183         }
2184
2185         si = &sp->u.iocb_cmd;
2186         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
2187
2188         for (i = 0; i < sz; i++)
2189                 si->u.mbx.in_mb[i] = pkt->mb[i];
2190
2191         res = (si->u.mbx.in_mb[0] & MBS_MASK);
2192
2193         sp->done(sp, res);
2194 }
2195
2196 static void
2197 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2198     struct nack_to_isp *pkt)
2199 {
2200         const char func[] = "nack";
2201         srb_t *sp;
2202         int res = 0;
2203
2204         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2205         if (!sp)
2206                 return;
2207
2208         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
2209                 res = QLA_FUNCTION_FAILED;
2210
2211         sp->done(sp, res);
2212 }
2213
2214 static void
2215 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
2216     sts_entry_t *pkt, int iocb_type)
2217 {
2218         const char func[] = "CT_IOCB";
2219         const char *type;
2220         srb_t *sp;
2221         struct bsg_job *bsg_job;
2222         struct fc_bsg_reply *bsg_reply;
2223         uint16_t comp_status;
2224         int res = 0;
2225
2226         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2227         if (!sp)
2228                 return;
2229
2230         switch (sp->type) {
2231         case SRB_CT_CMD:
2232             bsg_job = sp->u.bsg_job;
2233             bsg_reply = bsg_job->reply;
2234
2235             type = "ct pass-through";
2236
2237             comp_status = le16_to_cpu(pkt->comp_status);
2238
2239             /*
2240              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2241              * fc payload  to the caller
2242              */
2243             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2244             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2245
2246             if (comp_status != CS_COMPLETE) {
2247                     if (comp_status == CS_DATA_UNDERRUN) {
2248                             res = DID_OK << 16;
2249                             bsg_reply->reply_payload_rcv_len =
2250                                 le16_to_cpu(pkt->rsp_info_len);
2251
2252                             ql_log(ql_log_warn, vha, 0x5048,
2253                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
2254                                 type, comp_status,
2255                                 bsg_reply->reply_payload_rcv_len);
2256                     } else {
2257                             ql_log(ql_log_warn, vha, 0x5049,
2258                                 "CT pass-through-%s error comp_status=0x%x.\n",
2259                                 type, comp_status);
2260                             res = DID_ERROR << 16;
2261                             bsg_reply->reply_payload_rcv_len = 0;
2262                     }
2263                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
2264                         pkt, sizeof(*pkt));
2265             } else {
2266                     res = DID_OK << 16;
2267                     bsg_reply->reply_payload_rcv_len =
2268                         bsg_job->reply_payload.payload_len;
2269                     bsg_job->reply_len = 0;
2270             }
2271             break;
2272         case SRB_CT_PTHRU_CMD:
2273             /*
2274              * borrowing sts_entry_24xx.comp_status.
2275              * same location as ct_entry_24xx.comp_status
2276              */
2277              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
2278                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2279                  sp->name);
2280              break;
2281         }
2282
2283         sp->done(sp, res);
2284 }
2285
2286 static void
2287 qla24xx_els_ct_entry(scsi_qla_host_t *v, struct req_que *req,
2288     struct sts_entry_24xx *pkt, int iocb_type)
2289 {
2290         struct els_sts_entry_24xx *ese = (struct els_sts_entry_24xx *)pkt;
2291         const char func[] = "ELS_CT_IOCB";
2292         const char *type;
2293         srb_t *sp;
2294         struct bsg_job *bsg_job;
2295         struct fc_bsg_reply *bsg_reply;
2296         uint16_t comp_status;
2297         uint32_t fw_status[3];
2298         int res, logit = 1;
2299         struct srb_iocb *els;
2300         uint n;
2301         scsi_qla_host_t *vha;
2302         struct els_sts_entry_24xx *e = (struct els_sts_entry_24xx *)pkt;
2303
2304         sp = qla2x00_get_sp_from_handle(v, func, req, pkt);
2305         if (!sp)
2306                 return;
2307         bsg_job = sp->u.bsg_job;
2308         vha = sp->vha;
2309
2310         type = NULL;
2311
2312         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
2313         fw_status[1] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
2314         fw_status[2] = le32_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
2315
2316         switch (sp->type) {
2317         case SRB_ELS_CMD_RPT:
2318         case SRB_ELS_CMD_HST:
2319                 type = "rpt hst";
2320                 break;
2321         case SRB_ELS_CMD_HST_NOLOGIN:
2322                 type = "els";
2323                 {
2324                         struct els_entry_24xx *els = (void *)pkt;
2325                         struct qla_bsg_auth_els_request *p =
2326                                 (struct qla_bsg_auth_els_request *)bsg_job->request;
2327
2328                         ql_dbg(ql_dbg_user, vha, 0x700f,
2329                              "%s %s. portid=%02x%02x%02x status %x xchg %x bsg ptr %p\n",
2330                              __func__, sc_to_str(p->e.sub_cmd),
2331                              e->d_id[2], e->d_id[1], e->d_id[0],
2332                              comp_status, p->e.extra_rx_xchg_address, bsg_job);
2333
2334                         if (!(le16_to_cpu(els->control_flags) & ECF_PAYLOAD_DESCR_MASK)) {
2335                                 if (sp->remap.remapped) {
2336                                         n = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
2337                                                 bsg_job->reply_payload.sg_cnt,
2338                                                 sp->remap.rsp.buf,
2339                                                 sp->remap.rsp.len);
2340                                         ql_dbg(ql_dbg_user + ql_dbg_verbose, vha, 0x700e,
2341                                            "%s: SG copied %x of %x\n",
2342                                            __func__, n, sp->remap.rsp.len);
2343                                 } else {
2344                                         ql_dbg(ql_dbg_user, vha, 0x700f,
2345                                            "%s: NOT REMAPPED (error)...!!!\n",
2346                                            __func__);
2347                                 }
2348                         }
2349                 }
2350                 break;
2351         case SRB_CT_CMD:
2352                 type = "ct pass-through";
2353                 break;
2354         case SRB_ELS_DCMD:
2355                 type = "Driver ELS logo";
2356                 if (iocb_type != ELS_IOCB_TYPE) {
2357                         ql_dbg(ql_dbg_user, vha, 0x5047,
2358                             "Completing %s: (%p) type=%d.\n",
2359                             type, sp, sp->type);
2360                         sp->done(sp, 0);
2361                         return;
2362                 }
2363                 break;
2364         case SRB_CT_PTHRU_CMD:
2365                 /* borrowing sts_entry_24xx.comp_status.
2366                    same location as ct_entry_24xx.comp_status
2367                  */
2368                 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
2369                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
2370                         sp->name);
2371                 sp->done(sp, res);
2372                 return;
2373         default:
2374                 ql_dbg(ql_dbg_user, vha, 0x503e,
2375                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
2376                 return;
2377         }
2378
2379         if (iocb_type == ELS_IOCB_TYPE) {
2380                 els = &sp->u.iocb_cmd;
2381                 els->u.els_plogi.fw_status[0] = cpu_to_le32(fw_status[0]);
2382                 els->u.els_plogi.fw_status[1] = cpu_to_le32(fw_status[1]);
2383                 els->u.els_plogi.fw_status[2] = cpu_to_le32(fw_status[2]);
2384                 els->u.els_plogi.comp_status = cpu_to_le16(fw_status[0]);
2385                 if (comp_status == CS_COMPLETE) {
2386                         res =  DID_OK << 16;
2387                 } else {
2388                         if (comp_status == CS_DATA_UNDERRUN) {
2389                                 res =  DID_OK << 16;
2390                                 els->u.els_plogi.len = cpu_to_le16(le32_to_cpu(
2391                                         ese->total_byte_count));
2392
2393                                 if (sp->remap.remapped &&
2394                                     ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_ACC) {
2395                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2396                                             "%s IOCB Done LS_ACC %02x%02x%02x -> %02x%02x%02x",
2397                                             __func__, e->s_id[0], e->s_id[2], e->s_id[1],
2398                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2399                                         logit = 0;
2400                                 }
2401
2402                         } else if (comp_status == CS_PORT_LOGGED_OUT) {
2403                                 ql_dbg(ql_dbg_disc, vha, 0x911e,
2404                                        "%s %d schedule session deletion\n",
2405                                        __func__, __LINE__);
2406
2407                                 els->u.els_plogi.len = 0;
2408                                 res = DID_IMM_RETRY << 16;
2409                                 qlt_schedule_sess_for_deletion(sp->fcport);
2410                         } else {
2411                                 els->u.els_plogi.len = 0;
2412                                 res = DID_ERROR << 16;
2413                         }
2414
2415                         if (sp->remap.remapped &&
2416                             ((u8 *)sp->remap.rsp.buf)[0] == ELS_LS_RJT) {
2417                                 if (logit) {
2418                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2419                                             "%s IOCB Done LS_RJT hdl=%x comp_status=0x%x\n",
2420                                             type, sp->handle, comp_status);
2421
2422                                         ql_dbg(ql_dbg_user, vha, 0x503f,
2423                                             "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2424                                             fw_status[1], fw_status[2],
2425                                             le32_to_cpu(((struct els_sts_entry_24xx *)
2426                                                 pkt)->total_byte_count),
2427                                             e->s_id[0], e->s_id[2], e->s_id[1],
2428                                             e->d_id[2], e->d_id[1], e->d_id[0]);
2429                                 }
2430                                 if (sp->fcport && sp->fcport->flags & FCF_FCSP_DEVICE &&
2431                                     sp->type == SRB_ELS_CMD_HST_NOLOGIN) {
2432                                         ql_dbg(ql_dbg_edif, vha, 0x911e,
2433                                             "%s rcv reject. Sched delete\n", __func__);
2434                                         qlt_schedule_sess_for_deletion(sp->fcport);
2435                                 }
2436                         } else if (logit) {
2437                                 ql_log(ql_log_info, vha, 0x503f,
2438                                     "%s IOCB Done hdl=%x comp_status=0x%x\n",
2439                                     type, sp->handle, comp_status);
2440                                 ql_log(ql_log_info, vha, 0x503f,
2441                                     "subcode 1=0x%x subcode 2=0x%x bytes=0x%x %02x%02x%02x -> %02x%02x%02x\n",
2442                                     fw_status[1], fw_status[2],
2443                                     le32_to_cpu(((struct els_sts_entry_24xx *)
2444                                     pkt)->total_byte_count),
2445                                     e->s_id[0], e->s_id[2], e->s_id[1],
2446                                     e->d_id[2], e->d_id[1], e->d_id[0]);
2447                         }
2448                 }
2449                 goto els_ct_done;
2450         }
2451
2452         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
2453          * fc payload  to the caller
2454          */
2455         bsg_job = sp->u.bsg_job;
2456         bsg_reply = bsg_job->reply;
2457         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
2458         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
2459
2460         if (comp_status != CS_COMPLETE) {
2461                 if (comp_status == CS_DATA_UNDERRUN) {
2462                         res = DID_OK << 16;
2463                         bsg_reply->reply_payload_rcv_len =
2464                                 le32_to_cpu(ese->total_byte_count);
2465
2466                         ql_dbg(ql_dbg_user, vha, 0x503f,
2467                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2468                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
2469                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
2470                             le32_to_cpu(ese->total_byte_count));
2471                 } else {
2472                         ql_dbg(ql_dbg_user, vha, 0x5040,
2473                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
2474                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
2475                             type, sp->handle, comp_status,
2476                             le32_to_cpu(ese->error_subcode_1),
2477                             le32_to_cpu(ese->error_subcode_2));
2478                         res = DID_ERROR << 16;
2479                         bsg_reply->reply_payload_rcv_len = 0;
2480                 }
2481                 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
2482                        fw_status, sizeof(fw_status));
2483                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
2484                     pkt, sizeof(*pkt));
2485         }
2486         else {
2487                 res =  DID_OK << 16;
2488                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
2489                 bsg_job->reply_len = 0;
2490         }
2491 els_ct_done:
2492
2493         sp->done(sp, res);
2494 }
2495
2496 static void
2497 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
2498     struct logio_entry_24xx *logio)
2499 {
2500         const char func[] = "LOGIO-IOCB";
2501         const char *type;
2502         fc_port_t *fcport;
2503         srb_t *sp;
2504         struct srb_iocb *lio;
2505         uint16_t *data;
2506         uint32_t iop[2];
2507         int logit = 1;
2508
2509         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
2510         if (!sp)
2511                 return;
2512
2513         lio = &sp->u.iocb_cmd;
2514         type = sp->name;
2515         fcport = sp->fcport;
2516         data = lio->u.logio.data;
2517
2518         data[0] = MBS_COMMAND_ERROR;
2519         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
2520                 QLA_LOGIO_LOGIN_RETRIED : 0;
2521         if (logio->entry_status) {
2522                 ql_log(ql_log_warn, fcport->vha, 0x5034,
2523                     "Async-%s error entry - %8phC hdl=%x"
2524                     "portid=%02x%02x%02x entry-status=%x.\n",
2525                     type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
2526                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2527                     logio->entry_status);
2528                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
2529                     logio, sizeof(*logio));
2530
2531                 goto logio_done;
2532         }
2533
2534         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
2535                 ql_dbg(ql_dbg_async, sp->vha, 0x5036,
2536                     "Async-%s complete: handle=%x pid=%06x wwpn=%8phC iop0=%x\n",
2537                     type, sp->handle, fcport->d_id.b24, fcport->port_name,
2538                     le32_to_cpu(logio->io_parameter[0]));
2539
2540                 vha->hw->exch_starvation = 0;
2541                 data[0] = MBS_COMMAND_COMPLETE;
2542
2543                 if (sp->type == SRB_PRLI_CMD) {
2544                         lio->u.logio.iop[0] =
2545                             le32_to_cpu(logio->io_parameter[0]);
2546                         lio->u.logio.iop[1] =
2547                             le32_to_cpu(logio->io_parameter[1]);
2548                         goto logio_done;
2549                 }
2550
2551                 if (sp->type != SRB_LOGIN_CMD)
2552                         goto logio_done;
2553
2554                 lio->u.logio.iop[1] = le32_to_cpu(logio->io_parameter[5]);
2555                 if (le32_to_cpu(logio->io_parameter[5]) & LIO_COMM_FEAT_FCSP)
2556                         fcport->flags |= FCF_FCSP_DEVICE;
2557
2558                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
2559                 if (iop[0] & BIT_4) {
2560                         fcport->port_type = FCT_TARGET;
2561                         if (iop[0] & BIT_8)
2562                                 fcport->flags |= FCF_FCP2_DEVICE;
2563                 } else if (iop[0] & BIT_5)
2564                         fcport->port_type = FCT_INITIATOR;
2565
2566                 if (iop[0] & BIT_7)
2567                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
2568
2569                 if (logio->io_parameter[7] || logio->io_parameter[8])
2570                         fcport->supported_classes |= FC_COS_CLASS2;
2571                 if (logio->io_parameter[9] || logio->io_parameter[10])
2572                         fcport->supported_classes |= FC_COS_CLASS3;
2573
2574                 goto logio_done;
2575         }
2576
2577         iop[0] = le32_to_cpu(logio->io_parameter[0]);
2578         iop[1] = le32_to_cpu(logio->io_parameter[1]);
2579         lio->u.logio.iop[0] = iop[0];
2580         lio->u.logio.iop[1] = iop[1];
2581         switch (iop[0]) {
2582         case LSC_SCODE_PORTID_USED:
2583                 data[0] = MBS_PORT_ID_USED;
2584                 data[1] = LSW(iop[1]);
2585                 logit = 0;
2586                 break;
2587         case LSC_SCODE_NPORT_USED:
2588                 data[0] = MBS_LOOP_ID_USED;
2589                 logit = 0;
2590                 break;
2591         case LSC_SCODE_CMD_FAILED:
2592                 if (iop[1] == 0x0606) {
2593                         /*
2594                          * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
2595                          * Target side acked.
2596                          */
2597                         data[0] = MBS_COMMAND_COMPLETE;
2598                         goto logio_done;
2599                 }
2600                 data[0] = MBS_COMMAND_ERROR;
2601                 break;
2602         case LSC_SCODE_NOXCB:
2603                 vha->hw->exch_starvation++;
2604                 if (vha->hw->exch_starvation > 5) {
2605                         ql_log(ql_log_warn, vha, 0xd046,
2606                             "Exchange starvation. Resetting RISC\n");
2607
2608                         vha->hw->exch_starvation = 0;
2609
2610                         if (IS_P3P_TYPE(vha->hw))
2611                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2612                         else
2613                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2614                         qla2xxx_wake_dpc(vha);
2615                 }
2616                 fallthrough;
2617         default:
2618                 data[0] = MBS_COMMAND_ERROR;
2619                 break;
2620         }
2621
2622         if (logit)
2623                 ql_log(ql_log_warn, sp->vha, 0x5037, "Async-%s failed: "
2624                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2625                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2626                        le16_to_cpu(logio->comp_status),
2627                        le32_to_cpu(logio->io_parameter[0]),
2628                        le32_to_cpu(logio->io_parameter[1]));
2629         else
2630                 ql_dbg(ql_dbg_disc, sp->vha, 0x5037, "Async-%s failed: "
2631                        "handle=%x pid=%06x wwpn=%8phC comp_status=%x iop0=%x iop1=%x\n",
2632                        type, sp->handle, fcport->d_id.b24, fcport->port_name,
2633                        le16_to_cpu(logio->comp_status),
2634                        le32_to_cpu(logio->io_parameter[0]),
2635                        le32_to_cpu(logio->io_parameter[1]));
2636
2637 logio_done:
2638         sp->done(sp, 0);
2639 }
2640
2641 static void
2642 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
2643 {
2644         const char func[] = "TMF-IOCB";
2645         const char *type;
2646         fc_port_t *fcport;
2647         srb_t *sp;
2648         struct srb_iocb *iocb;
2649         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2650         u16 comp_status;
2651
2652         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
2653         if (!sp)
2654                 return;
2655
2656         comp_status = le16_to_cpu(sts->comp_status);
2657         iocb = &sp->u.iocb_cmd;
2658         type = sp->name;
2659         fcport = sp->fcport;
2660         iocb->u.tmf.data = QLA_SUCCESS;
2661
2662         if (sts->entry_status) {
2663                 ql_log(ql_log_warn, fcport->vha, 0x5038,
2664                     "Async-%s error - hdl=%x entry-status(%x).\n",
2665                     type, sp->handle, sts->entry_status);
2666                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2667         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
2668                 ql_log(ql_log_warn, fcport->vha, 0x5039,
2669                     "Async-%s error - hdl=%x completion status(%x).\n",
2670                     type, sp->handle, comp_status);
2671                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2672         } else if ((le16_to_cpu(sts->scsi_status) &
2673             SS_RESPONSE_INFO_LEN_VALID)) {
2674                 host_to_fcp_swap(sts->data, sizeof(sts->data));
2675                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
2676                         ql_log(ql_log_warn, fcport->vha, 0x503b,
2677                             "Async-%s error - hdl=%x not enough response(%d).\n",
2678                             type, sp->handle, sts->rsp_data_len);
2679                 } else if (sts->data[3]) {
2680                         ql_log(ql_log_warn, fcport->vha, 0x503c,
2681                             "Async-%s error - hdl=%x response(%x).\n",
2682                             type, sp->handle, sts->data[3]);
2683                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
2684                 }
2685         }
2686
2687         switch (comp_status) {
2688         case CS_PORT_LOGGED_OUT:
2689         case CS_PORT_CONFIG_CHG:
2690         case CS_PORT_BUSY:
2691         case CS_INCOMPLETE:
2692         case CS_PORT_UNAVAILABLE:
2693         case CS_RESET:
2694                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2695                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2696                                "-Port to be marked lost on fcport=%02x%02x%02x, current port state= %s comp_status %x.\n",
2697                                fcport->d_id.b.domain, fcport->d_id.b.area,
2698                                fcport->d_id.b.al_pa,
2699                                port_state_str[FCS_ONLINE],
2700                                comp_status);
2701
2702                         qlt_schedule_sess_for_deletion(fcport);
2703                 }
2704                 break;
2705
2706         default:
2707                 break;
2708         }
2709
2710         if (iocb->u.tmf.data != QLA_SUCCESS)
2711                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
2712                     sts, sizeof(*sts));
2713
2714         sp->done(sp, 0);
2715 }
2716
2717 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2718     void *tsk, srb_t *sp)
2719 {
2720         fc_port_t *fcport;
2721         struct srb_iocb *iocb;
2722         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
2723         uint16_t        state_flags;
2724         struct nvmefc_fcp_req *fd;
2725         uint16_t        ret = QLA_SUCCESS;
2726         __le16          comp_status = sts->comp_status;
2727         int             logit = 0;
2728
2729         iocb = &sp->u.iocb_cmd;
2730         fcport = sp->fcport;
2731         iocb->u.nvme.comp_status = comp_status;
2732         state_flags  = le16_to_cpu(sts->state_flags);
2733         fd = iocb->u.nvme.desc;
2734
2735         if (unlikely(iocb->u.nvme.aen_op))
2736                 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
2737         else
2738                 sp->qpair->cmd_completion_cnt++;
2739
2740         if (unlikely(comp_status != CS_COMPLETE))
2741                 logit = 1;
2742
2743         fd->transferred_length = fd->payload_length -
2744             le32_to_cpu(sts->residual_len);
2745
2746         /*
2747          * State flags: Bit 6 and 0.
2748          * If 0 is set, we don't care about 6.
2749          * both cases resp was dma'd to host buffer
2750          * if both are 0, that is good path case.
2751          * if six is set and 0 is clear, we need to
2752          * copy resp data from status iocb to resp buffer.
2753          */
2754         if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
2755                 iocb->u.nvme.rsp_pyld_len = 0;
2756         } else if ((state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP)) ==
2757                         (SF_FCP_RSP_DMA | SF_NVME_ERSP)) {
2758                 /* Response already DMA'd to fd->rspaddr. */
2759                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2760         } else if ((state_flags & SF_FCP_RSP_DMA)) {
2761                 /*
2762                  * Non-zero value in first 12 bytes of NVMe_RSP IU, treat this
2763                  * as an error.
2764                  */
2765                 iocb->u.nvme.rsp_pyld_len = 0;
2766                 fd->transferred_length = 0;
2767                 ql_dbg(ql_dbg_io, fcport->vha, 0x307a,
2768                         "Unexpected values in NVMe_RSP IU.\n");
2769                 logit = 1;
2770         } else if (state_flags & SF_NVME_ERSP) {
2771                 uint32_t *inbuf, *outbuf;
2772                 uint16_t iter;
2773
2774                 inbuf = (uint32_t *)&sts->nvme_ersp_data;
2775                 outbuf = (uint32_t *)fd->rspaddr;
2776                 iocb->u.nvme.rsp_pyld_len = sts->nvme_rsp_pyld_len;
2777                 if (unlikely(le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >
2778                     sizeof(struct nvme_fc_ersp_iu))) {
2779                         if (ql_mask_match(ql_dbg_io)) {
2780                                 WARN_ONCE(1, "Unexpected response payload length %u.\n",
2781                                     iocb->u.nvme.rsp_pyld_len);
2782                                 ql_log(ql_log_warn, fcport->vha, 0x5100,
2783                                     "Unexpected response payload length %u.\n",
2784                                     iocb->u.nvme.rsp_pyld_len);
2785                         }
2786                         iocb->u.nvme.rsp_pyld_len =
2787                                 cpu_to_le16(sizeof(struct nvme_fc_ersp_iu));
2788                 }
2789                 iter = le16_to_cpu(iocb->u.nvme.rsp_pyld_len) >> 2;
2790                 for (; iter; iter--)
2791                         *outbuf++ = swab32(*inbuf++);
2792         }
2793
2794         if (state_flags & SF_NVME_ERSP) {
2795                 struct nvme_fc_ersp_iu *rsp_iu = fd->rspaddr;
2796                 u32 tgt_xfer_len;
2797
2798                 tgt_xfer_len = be32_to_cpu(rsp_iu->xfrd_len);
2799                 if (fd->transferred_length != tgt_xfer_len) {
2800                         ql_log(ql_log_warn, fcport->vha, 0x3079,
2801                                "Dropped frame(s) detected (sent/rcvd=%u/%u).\n",
2802                                tgt_xfer_len, fd->transferred_length);
2803                         logit = 1;
2804                 } else if (le16_to_cpu(comp_status) == CS_DATA_UNDERRUN) {
2805                         /*
2806                          * Do not log if this is just an underflow and there
2807                          * is no data loss.
2808                          */
2809                         logit = 0;
2810                 }
2811         }
2812
2813         if (unlikely(logit))
2814                 ql_dbg(ql_dbg_io, fcport->vha, 0x5060,
2815                    "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x  ox_id=%x\n",
2816                    sp->name, sp->handle, comp_status,
2817                    fd->transferred_length, le32_to_cpu(sts->residual_len),
2818                    sts->ox_id);
2819
2820         /*
2821          * If transport error then Failure (HBA rejects request)
2822          * otherwise transport will handle.
2823          */
2824         switch (le16_to_cpu(comp_status)) {
2825         case CS_COMPLETE:
2826                 break;
2827
2828         case CS_RESET:
2829         case CS_PORT_UNAVAILABLE:
2830         case CS_PORT_LOGGED_OUT:
2831                 fcport->nvme_flag |= NVME_FLAG_RESETTING;
2832                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2833                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2834                                "Port to be marked lost on fcport=%06x, current "
2835                                "port state= %s comp_status %x.\n",
2836                                fcport->d_id.b24, port_state_str[FCS_ONLINE],
2837                                comp_status);
2838
2839                         qlt_schedule_sess_for_deletion(fcport);
2840                 }
2841                 fallthrough;
2842         case CS_ABORTED:
2843         case CS_PORT_BUSY:
2844                 fd->transferred_length = 0;
2845                 iocb->u.nvme.rsp_pyld_len = 0;
2846                 ret = QLA_ABORTED;
2847                 break;
2848         case CS_DATA_UNDERRUN:
2849                 break;
2850         default:
2851                 ret = QLA_FUNCTION_FAILED;
2852                 break;
2853         }
2854         sp->done(sp, ret);
2855 }
2856
2857 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
2858     struct vp_ctrl_entry_24xx *vce)
2859 {
2860         const char func[] = "CTRLVP-IOCB";
2861         srb_t *sp;
2862         int rval = QLA_SUCCESS;
2863
2864         sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
2865         if (!sp)
2866                 return;
2867
2868         if (vce->entry_status != 0) {
2869                 ql_dbg(ql_dbg_vport, vha, 0x10c4,
2870                     "%s: Failed to complete IOCB -- error status (%x)\n",
2871                     sp->name, vce->entry_status);
2872                 rval = QLA_FUNCTION_FAILED;
2873         } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
2874                 ql_dbg(ql_dbg_vport, vha, 0x10c5,
2875                     "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
2876                     sp->name, le16_to_cpu(vce->comp_status),
2877                     le16_to_cpu(vce->vp_idx_failed));
2878                 rval = QLA_FUNCTION_FAILED;
2879         } else {
2880                 ql_dbg(ql_dbg_vport, vha, 0x10c6,
2881                     "Done %s.\n", __func__);
2882         }
2883
2884         sp->rc = rval;
2885         sp->done(sp, rval);
2886 }
2887
2888 /* Process a single response queue entry. */
2889 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
2890                                            struct rsp_que *rsp,
2891                                            sts_entry_t *pkt)
2892 {
2893         sts21_entry_t *sts21_entry;
2894         sts22_entry_t *sts22_entry;
2895         uint16_t handle_cnt;
2896         uint16_t cnt;
2897
2898         switch (pkt->entry_type) {
2899         case STATUS_TYPE:
2900                 qla2x00_status_entry(vha, rsp, pkt);
2901                 break;
2902         case STATUS_TYPE_21:
2903                 sts21_entry = (sts21_entry_t *)pkt;
2904                 handle_cnt = sts21_entry->handle_count;
2905                 for (cnt = 0; cnt < handle_cnt; cnt++)
2906                         qla2x00_process_completed_request(vha, rsp->req,
2907                                                 sts21_entry->handle[cnt]);
2908                 break;
2909         case STATUS_TYPE_22:
2910                 sts22_entry = (sts22_entry_t *)pkt;
2911                 handle_cnt = sts22_entry->handle_count;
2912                 for (cnt = 0; cnt < handle_cnt; cnt++)
2913                         qla2x00_process_completed_request(vha, rsp->req,
2914                                                 sts22_entry->handle[cnt]);
2915                 break;
2916         case STATUS_CONT_TYPE:
2917                 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2918                 break;
2919         case MBX_IOCB_TYPE:
2920                 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2921                 break;
2922         case CT_IOCB_TYPE:
2923                 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2924                 break;
2925         default:
2926                 /* Type Not Supported. */
2927                 ql_log(ql_log_warn, vha, 0x504a,
2928                        "Received unknown response pkt type %x entry status=%x.\n",
2929                        pkt->entry_type, pkt->entry_status);
2930                 break;
2931         }
2932 }
2933
2934 /**
2935  * qla2x00_process_response_queue() - Process response queue entries.
2936  * @rsp: response queue
2937  */
2938 void
2939 qla2x00_process_response_queue(struct rsp_que *rsp)
2940 {
2941         struct scsi_qla_host *vha;
2942         struct qla_hw_data *ha = rsp->hw;
2943         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2944         sts_entry_t     *pkt;
2945
2946         vha = pci_get_drvdata(ha->pdev);
2947
2948         if (!vha->flags.online)
2949                 return;
2950
2951         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2952                 pkt = (sts_entry_t *)rsp->ring_ptr;
2953
2954                 rsp->ring_index++;
2955                 if (rsp->ring_index == rsp->length) {
2956                         rsp->ring_index = 0;
2957                         rsp->ring_ptr = rsp->ring;
2958                 } else {
2959                         rsp->ring_ptr++;
2960                 }
2961
2962                 if (pkt->entry_status != 0) {
2963                         qla2x00_error_entry(vha, rsp, pkt);
2964                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2965                         wmb();
2966                         continue;
2967                 }
2968
2969                 qla2x00_process_response_entry(vha, rsp, pkt);
2970                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2971                 wmb();
2972         }
2973
2974         /* Adjust ring index */
2975         wrt_reg_word(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2976 }
2977
2978 static inline void
2979 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2980                      uint32_t sense_len, struct rsp_que *rsp, int res)
2981 {
2982         struct scsi_qla_host *vha = sp->vha;
2983         struct scsi_cmnd *cp = GET_CMD_SP(sp);
2984         uint32_t track_sense_len;
2985
2986         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2987                 sense_len = SCSI_SENSE_BUFFERSIZE;
2988
2989         SET_CMD_SENSE_LEN(sp, sense_len);
2990         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2991         track_sense_len = sense_len;
2992
2993         if (sense_len > par_sense_len)
2994                 sense_len = par_sense_len;
2995
2996         memcpy(cp->sense_buffer, sense_data, sense_len);
2997
2998         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2999         track_sense_len -= sense_len;
3000         SET_CMD_SENSE_LEN(sp, track_sense_len);
3001
3002         if (track_sense_len != 0) {
3003                 rsp->status_srb = sp;
3004                 cp->result = res;
3005         }
3006
3007         if (sense_len) {
3008                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
3009                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
3010                     sp->vha->host_no, cp->device->id, cp->device->lun,
3011                     cp);
3012                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
3013                     cp->sense_buffer, sense_len);
3014         }
3015 }
3016
3017 struct scsi_dif_tuple {
3018         __be16 guard;       /* Checksum */
3019         __be16 app_tag;         /* APPL identifier */
3020         __be32 ref_tag;         /* Target LBA or indirect LBA */
3021 };
3022
3023 /*
3024  * Checks the guard or meta-data for the type of error
3025  * detected by the HBA. In case of errors, we set the
3026  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
3027  * to indicate to the kernel that the HBA detected error.
3028  */
3029 static inline int
3030 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
3031 {
3032         struct scsi_qla_host *vha = sp->vha;
3033         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
3034         uint8_t         *ap = &sts24->data[12];
3035         uint8_t         *ep = &sts24->data[20];
3036         uint32_t        e_ref_tag, a_ref_tag;
3037         uint16_t        e_app_tag, a_app_tag;
3038         uint16_t        e_guard, a_guard;
3039
3040         /*
3041          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
3042          * would make guard field appear at offset 2
3043          */
3044         a_guard   = get_unaligned_le16(ap + 2);
3045         a_app_tag = get_unaligned_le16(ap + 0);
3046         a_ref_tag = get_unaligned_le32(ap + 4);
3047         e_guard   = get_unaligned_le16(ep + 2);
3048         e_app_tag = get_unaligned_le16(ep + 0);
3049         e_ref_tag = get_unaligned_le32(ep + 4);
3050
3051         ql_dbg(ql_dbg_io, vha, 0x3023,
3052             "iocb(s) %p Returned STATUS.\n", sts24);
3053
3054         ql_dbg(ql_dbg_io, vha, 0x3024,
3055             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
3056             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
3057             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
3058             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
3059             a_app_tag, e_app_tag, a_guard, e_guard);
3060
3061         /*
3062          * Ignore sector if:
3063          * For type     3: ref & app tag is all 'f's
3064          * For type 0,1,2: app tag is all 'f's
3065          */
3066         if (a_app_tag == be16_to_cpu(T10_PI_APP_ESCAPE) &&
3067             (scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3 ||
3068              a_ref_tag == be32_to_cpu(T10_PI_REF_ESCAPE))) {
3069                 uint32_t blocks_done, resid;
3070                 sector_t lba_s = scsi_get_lba(cmd);
3071
3072                 /* 2TB boundary case covered automatically with this */
3073                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
3074
3075                 resid = scsi_bufflen(cmd) - (blocks_done *
3076                     cmd->device->sector_size);
3077
3078                 scsi_set_resid(cmd, resid);
3079                 cmd->result = DID_OK << 16;
3080
3081                 /* Update protection tag */
3082                 if (scsi_prot_sg_count(cmd)) {
3083                         uint32_t i, j = 0, k = 0, num_ent;
3084                         struct scatterlist *sg;
3085                         struct t10_pi_tuple *spt;
3086
3087                         /* Patch the corresponding protection tags */
3088                         scsi_for_each_prot_sg(cmd, sg,
3089                             scsi_prot_sg_count(cmd), i) {
3090                                 num_ent = sg_dma_len(sg) / 8;
3091                                 if (k + num_ent < blocks_done) {
3092                                         k += num_ent;
3093                                         continue;
3094                                 }
3095                                 j = blocks_done - k - 1;
3096                                 k = blocks_done;
3097                                 break;
3098                         }
3099
3100                         if (k != blocks_done) {
3101                                 ql_log(ql_log_warn, vha, 0x302f,
3102                                     "unexpected tag values tag:lba=%x:%llx)\n",
3103                                     e_ref_tag, (unsigned long long)lba_s);
3104                                 return 1;
3105                         }
3106
3107                         spt = page_address(sg_page(sg)) + sg->offset;
3108                         spt += j;
3109
3110                         spt->app_tag = T10_PI_APP_ESCAPE;
3111                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
3112                                 spt->ref_tag = T10_PI_REF_ESCAPE;
3113                 }
3114
3115                 return 0;
3116         }
3117
3118         /* check guard */
3119         if (e_guard != a_guard) {
3120                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x1);
3121                 set_host_byte(cmd, DID_ABORT);
3122                 return 1;
3123         }
3124
3125         /* check ref tag */
3126         if (e_ref_tag != a_ref_tag) {
3127                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x3);
3128                 set_host_byte(cmd, DID_ABORT);
3129                 return 1;
3130         }
3131
3132         /* check appl tag */
3133         if (e_app_tag != a_app_tag) {
3134                 scsi_build_sense(cmd, 1, ILLEGAL_REQUEST, 0x10, 0x2);
3135                 set_host_byte(cmd, DID_ABORT);
3136                 return 1;
3137         }
3138
3139         return 1;
3140 }
3141
3142 static void
3143 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
3144                                   struct req_que *req, uint32_t index)
3145 {
3146         struct qla_hw_data *ha = vha->hw;
3147         srb_t *sp;
3148         uint16_t        comp_status;
3149         uint16_t        scsi_status;
3150         uint16_t thread_id;
3151         uint32_t rval = EXT_STATUS_OK;
3152         struct bsg_job *bsg_job = NULL;
3153         struct fc_bsg_request *bsg_request;
3154         struct fc_bsg_reply *bsg_reply;
3155         sts_entry_t *sts = pkt;
3156         struct sts_entry_24xx *sts24 = pkt;
3157
3158         /* Validate handle. */
3159         if (index >= req->num_outstanding_cmds) {
3160                 ql_log(ql_log_warn, vha, 0x70af,
3161                     "Invalid SCSI completion handle 0x%x.\n", index);
3162                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3163                 return;
3164         }
3165
3166         sp = req->outstanding_cmds[index];
3167         if (!sp) {
3168                 ql_log(ql_log_warn, vha, 0x70b0,
3169                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
3170                     req->id, index);
3171
3172                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3173                 return;
3174         }
3175
3176         /* Free outstanding command slot. */
3177         req->outstanding_cmds[index] = NULL;
3178         bsg_job = sp->u.bsg_job;
3179         bsg_request = bsg_job->request;
3180         bsg_reply = bsg_job->reply;
3181
3182         if (IS_FWI2_CAPABLE(ha)) {
3183                 comp_status = le16_to_cpu(sts24->comp_status);
3184                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3185         } else {
3186                 comp_status = le16_to_cpu(sts->comp_status);
3187                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3188         }
3189
3190         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
3191         switch (comp_status) {
3192         case CS_COMPLETE:
3193                 if (scsi_status == 0) {
3194                         bsg_reply->reply_payload_rcv_len =
3195                                         bsg_job->reply_payload.payload_len;
3196                         vha->qla_stats.input_bytes +=
3197                                 bsg_reply->reply_payload_rcv_len;
3198                         vha->qla_stats.input_requests++;
3199                         rval = EXT_STATUS_OK;
3200                 }
3201                 goto done;
3202
3203         case CS_DATA_OVERRUN:
3204                 ql_dbg(ql_dbg_user, vha, 0x70b1,
3205                     "Command completed with data overrun thread_id=%d\n",
3206                     thread_id);
3207                 rval = EXT_STATUS_DATA_OVERRUN;
3208                 break;
3209
3210         case CS_DATA_UNDERRUN:
3211                 ql_dbg(ql_dbg_user, vha, 0x70b2,
3212                     "Command completed with data underrun thread_id=%d\n",
3213                     thread_id);
3214                 rval = EXT_STATUS_DATA_UNDERRUN;
3215                 break;
3216         case CS_BIDIR_RD_OVERRUN:
3217                 ql_dbg(ql_dbg_user, vha, 0x70b3,
3218                     "Command completed with read data overrun thread_id=%d\n",
3219                     thread_id);
3220                 rval = EXT_STATUS_DATA_OVERRUN;
3221                 break;
3222
3223         case CS_BIDIR_RD_WR_OVERRUN:
3224                 ql_dbg(ql_dbg_user, vha, 0x70b4,
3225                     "Command completed with read and write data overrun "
3226                     "thread_id=%d\n", thread_id);
3227                 rval = EXT_STATUS_DATA_OVERRUN;
3228                 break;
3229
3230         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
3231                 ql_dbg(ql_dbg_user, vha, 0x70b5,
3232                     "Command completed with read data over and write data "
3233                     "underrun thread_id=%d\n", thread_id);
3234                 rval = EXT_STATUS_DATA_OVERRUN;
3235                 break;
3236
3237         case CS_BIDIR_RD_UNDERRUN:
3238                 ql_dbg(ql_dbg_user, vha, 0x70b6,
3239                     "Command completed with read data underrun "
3240                     "thread_id=%d\n", thread_id);
3241                 rval = EXT_STATUS_DATA_UNDERRUN;
3242                 break;
3243
3244         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
3245                 ql_dbg(ql_dbg_user, vha, 0x70b7,
3246                     "Command completed with read data under and write data "
3247                     "overrun thread_id=%d\n", thread_id);
3248                 rval = EXT_STATUS_DATA_UNDERRUN;
3249                 break;
3250
3251         case CS_BIDIR_RD_WR_UNDERRUN:
3252                 ql_dbg(ql_dbg_user, vha, 0x70b8,
3253                     "Command completed with read and write data underrun "
3254                     "thread_id=%d\n", thread_id);
3255                 rval = EXT_STATUS_DATA_UNDERRUN;
3256                 break;
3257
3258         case CS_BIDIR_DMA:
3259                 ql_dbg(ql_dbg_user, vha, 0x70b9,
3260                     "Command completed with data DMA error thread_id=%d\n",
3261                     thread_id);
3262                 rval = EXT_STATUS_DMA_ERR;
3263                 break;
3264
3265         case CS_TIMEOUT:
3266                 ql_dbg(ql_dbg_user, vha, 0x70ba,
3267                     "Command completed with timeout thread_id=%d\n",
3268                     thread_id);
3269                 rval = EXT_STATUS_TIMEOUT;
3270                 break;
3271         default:
3272                 ql_dbg(ql_dbg_user, vha, 0x70bb,
3273                     "Command completed with completion status=0x%x "
3274                     "thread_id=%d\n", comp_status, thread_id);
3275                 rval = EXT_STATUS_ERR;
3276                 break;
3277         }
3278         bsg_reply->reply_payload_rcv_len = 0;
3279
3280 done:
3281         /* Return the vendor specific reply to API */
3282         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
3283         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
3284         /* Always return DID_OK, bsg will send the vendor specific response
3285          * in this case only */
3286         sp->done(sp, DID_OK << 16);
3287
3288 }
3289
3290 /**
3291  * qla2x00_status_entry() - Process a Status IOCB entry.
3292  * @vha: SCSI driver HA context
3293  * @rsp: response queue
3294  * @pkt: Entry pointer
3295  */
3296 static void
3297 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
3298 {
3299         srb_t           *sp;
3300         fc_port_t       *fcport;
3301         struct scsi_cmnd *cp;
3302         sts_entry_t *sts = pkt;
3303         struct sts_entry_24xx *sts24 = pkt;
3304         uint16_t        comp_status;
3305         uint16_t        scsi_status;
3306         uint16_t        ox_id;
3307         uint8_t         lscsi_status;
3308         int32_t         resid;
3309         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
3310             fw_resid_len;
3311         uint8_t         *rsp_info, *sense_data;
3312         struct qla_hw_data *ha = vha->hw;
3313         uint32_t handle;
3314         uint16_t que;
3315         struct req_que *req;
3316         int logit = 1;
3317         int res = 0;
3318         uint16_t state_flags = 0;
3319         uint16_t sts_qual = 0;
3320
3321         if (IS_FWI2_CAPABLE(ha)) {
3322                 comp_status = le16_to_cpu(sts24->comp_status);
3323                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
3324                 state_flags = le16_to_cpu(sts24->state_flags);
3325         } else {
3326                 comp_status = le16_to_cpu(sts->comp_status);
3327                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
3328         }
3329         handle = (uint32_t) LSW(sts->handle);
3330         que = MSW(sts->handle);
3331         req = ha->req_q_map[que];
3332
3333         /* Check for invalid queue pointer */
3334         if (req == NULL ||
3335             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
3336                 ql_dbg(ql_dbg_io, vha, 0x3059,
3337                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
3338                     "que=%u.\n", sts->handle, req, que);
3339                 return;
3340         }
3341
3342         /* Validate handle. */
3343         if (handle < req->num_outstanding_cmds) {
3344                 sp = req->outstanding_cmds[handle];
3345                 if (!sp) {
3346                         ql_dbg(ql_dbg_io, vha, 0x3075,
3347                             "%s(%ld): Already returned command for status handle (0x%x).\n",
3348                             __func__, vha->host_no, sts->handle);
3349                         return;
3350                 }
3351         } else {
3352                 ql_dbg(ql_dbg_io, vha, 0x3017,
3353                     "Invalid status handle, out of range (0x%x).\n",
3354                     sts->handle);
3355
3356                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
3357                         if (IS_P3P_TYPE(ha))
3358                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
3359                         else
3360                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3361                         qla2xxx_wake_dpc(vha);
3362                 }
3363                 return;
3364         }
3365         qla_put_fw_resources(sp->qpair, &sp->iores);
3366
3367         if (sp->cmd_type != TYPE_SRB) {
3368                 req->outstanding_cmds[handle] = NULL;
3369                 ql_dbg(ql_dbg_io, vha, 0x3015,
3370                     "Unknown sp->cmd_type %x %p).\n",
3371                     sp->cmd_type, sp);
3372                 return;
3373         }
3374
3375         /* NVME completion. */
3376         if (sp->type == SRB_NVME_CMD) {
3377                 req->outstanding_cmds[handle] = NULL;
3378                 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
3379                 return;
3380         }
3381
3382         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
3383                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
3384                 return;
3385         }
3386
3387         /* Task Management completion. */
3388         if (sp->type == SRB_TM_CMD) {
3389                 qla24xx_tm_iocb_entry(vha, req, pkt);
3390                 return;
3391         }
3392
3393         /* Fast path completion. */
3394         qla_chk_edif_rx_sa_delete_pending(vha, sp, sts24);
3395         sp->qpair->cmd_completion_cnt++;
3396
3397         if (comp_status == CS_COMPLETE && scsi_status == 0) {
3398                 qla2x00_process_completed_request(vha, req, handle);
3399
3400                 return;
3401         }
3402
3403         cp = GET_CMD_SP(sp);
3404         if (cp == NULL) {
3405                 ql_dbg(ql_dbg_io, vha, 0x3018,
3406                     "Command already returned (0x%x/%p).\n",
3407                     sts->handle, sp);
3408
3409                 req->outstanding_cmds[handle] = NULL;
3410                 return;
3411         }
3412
3413         lscsi_status = scsi_status & STATUS_MASK;
3414
3415         fcport = sp->fcport;
3416
3417         ox_id = 0;
3418         sense_len = par_sense_len = rsp_info_len = resid_len =
3419             fw_resid_len = 0;
3420         if (IS_FWI2_CAPABLE(ha)) {
3421                 if (scsi_status & SS_SENSE_LEN_VALID)
3422                         sense_len = le32_to_cpu(sts24->sense_len);
3423                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3424                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
3425                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
3426                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
3427                 if (comp_status == CS_DATA_UNDERRUN)
3428                         fw_resid_len = le32_to_cpu(sts24->residual_len);
3429                 rsp_info = sts24->data;
3430                 sense_data = sts24->data;
3431                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
3432                 ox_id = le16_to_cpu(sts24->ox_id);
3433                 par_sense_len = sizeof(sts24->data);
3434                 sts_qual = le16_to_cpu(sts24->status_qualifier);
3435         } else {
3436                 if (scsi_status & SS_SENSE_LEN_VALID)
3437                         sense_len = le16_to_cpu(sts->req_sense_length);
3438                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
3439                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
3440                 resid_len = le32_to_cpu(sts->residual_length);
3441                 rsp_info = sts->rsp_info;
3442                 sense_data = sts->req_sense_data;
3443                 par_sense_len = sizeof(sts->req_sense_data);
3444         }
3445
3446         /* Check for any FCP transport errors. */
3447         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
3448                 /* Sense data lies beyond any FCP RESPONSE data. */
3449                 if (IS_FWI2_CAPABLE(ha)) {
3450                         sense_data += rsp_info_len;
3451                         par_sense_len -= rsp_info_len;
3452                 }
3453                 if (rsp_info_len > 3 && rsp_info[3]) {
3454                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
3455                             "FCP I/O protocol failure (0x%x/0x%x).\n",
3456                             rsp_info_len, rsp_info[3]);
3457
3458                         res = DID_BUS_BUSY << 16;
3459                         goto out;
3460                 }
3461         }
3462
3463         /* Check for overrun. */
3464         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
3465             scsi_status & SS_RESIDUAL_OVER)
3466                 comp_status = CS_DATA_OVERRUN;
3467
3468         /*
3469          * Check retry_delay_timer value if we receive a busy or
3470          * queue full.
3471          */
3472         if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL ||
3473                      lscsi_status == SAM_STAT_BUSY))
3474                 qla2x00_set_retry_delay_timestamp(fcport, sts_qual);
3475
3476         /*
3477          * Based on Host and scsi status generate status code for Linux
3478          */
3479         switch (comp_status) {
3480         case CS_COMPLETE:
3481         case CS_QUEUE_FULL:
3482                 if (scsi_status == 0) {
3483                         res = DID_OK << 16;
3484                         break;
3485                 }
3486                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
3487                         resid = resid_len;
3488                         scsi_set_resid(cp, resid);
3489
3490                         if (!lscsi_status &&
3491                             ((unsigned)(scsi_bufflen(cp) - resid) <
3492                              cp->underflow)) {
3493                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
3494                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3495                                     resid, scsi_bufflen(cp));
3496
3497                                 res = DID_ERROR << 16;
3498                                 break;
3499                         }
3500                 }
3501                 res = DID_OK << 16 | lscsi_status;
3502
3503                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3504                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
3505                             "QUEUE FULL detected.\n");
3506                         break;
3507                 }
3508                 logit = 0;
3509                 if (lscsi_status != SS_CHECK_CONDITION)
3510                         break;
3511
3512                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3513                 if (!(scsi_status & SS_SENSE_LEN_VALID))
3514                         break;
3515
3516                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
3517                     rsp, res);
3518                 break;
3519
3520         case CS_DATA_UNDERRUN:
3521                 /* Use F/W calculated residual length. */
3522                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
3523                 scsi_set_resid(cp, resid);
3524                 if (scsi_status & SS_RESIDUAL_UNDER) {
3525                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
3526                                 ql_log(ql_log_warn, fcport->vha, 0x301d,
3527                                        "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3528                                        resid, scsi_bufflen(cp));
3529
3530                                 res = DID_ERROR << 16 | lscsi_status;
3531                                 goto check_scsi_status;
3532                         }
3533
3534                         if (!lscsi_status &&
3535                             ((unsigned)(scsi_bufflen(cp) - resid) <
3536                             cp->underflow)) {
3537                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
3538                                     "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
3539                                     resid, scsi_bufflen(cp));
3540
3541                                 res = DID_ERROR << 16;
3542                                 break;
3543                         }
3544                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
3545                             lscsi_status != SAM_STAT_BUSY) {
3546                         /*
3547                          * scsi status of task set and busy are considered to be
3548                          * task not completed.
3549                          */
3550
3551                         ql_log(ql_log_warn, fcport->vha, 0x301f,
3552                                "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
3553                                resid, scsi_bufflen(cp));
3554
3555                         vha->interface_err_cnt++;
3556
3557                         res = DID_ERROR << 16 | lscsi_status;
3558                         goto check_scsi_status;
3559                 } else {
3560                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
3561                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
3562                             scsi_status, lscsi_status);
3563                 }
3564
3565                 res = DID_OK << 16 | lscsi_status;
3566                 logit = 0;
3567
3568 check_scsi_status:
3569                 /*
3570                  * Check to see if SCSI Status is non zero. If so report SCSI
3571                  * Status.
3572                  */
3573                 if (lscsi_status != 0) {
3574                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
3575                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
3576                                     "QUEUE FULL detected.\n");
3577                                 logit = 1;
3578                                 break;
3579                         }
3580                         if (lscsi_status != SS_CHECK_CONDITION)
3581                                 break;
3582
3583                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
3584                         if (!(scsi_status & SS_SENSE_LEN_VALID))
3585                                 break;
3586
3587                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
3588                             sense_len, rsp, res);
3589                 }
3590                 break;
3591
3592         case CS_PORT_LOGGED_OUT:
3593         case CS_PORT_CONFIG_CHG:
3594         case CS_PORT_BUSY:
3595         case CS_INCOMPLETE:
3596         case CS_PORT_UNAVAILABLE:
3597         case CS_TIMEOUT:
3598         case CS_RESET:
3599         case CS_EDIF_INV_REQ:
3600
3601                 /*
3602                  * We are going to have the fc class block the rport
3603                  * while we try to recover so instruct the mid layer
3604                  * to requeue until the class decides how to handle this.
3605                  */
3606                 res = DID_TRANSPORT_DISRUPTED << 16;
3607
3608                 if (comp_status == CS_TIMEOUT) {
3609                         if (IS_FWI2_CAPABLE(ha))
3610                                 break;
3611                         else if ((le16_to_cpu(sts->status_flags) &
3612                             SF_LOGOUT_SENT) == 0)
3613                                 break;
3614                 }
3615
3616                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
3617                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
3618                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
3619                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
3620                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
3621                                 port_state_str[FCS_ONLINE],
3622                                 comp_status);
3623
3624                         qlt_schedule_sess_for_deletion(fcport);
3625                 }
3626
3627                 break;
3628
3629         case CS_ABORTED:
3630                 res = DID_RESET << 16;
3631                 break;
3632
3633         case CS_DIF_ERROR:
3634                 logit = qla2x00_handle_dif_error(sp, sts24);
3635                 res = cp->result;
3636                 break;
3637
3638         case CS_TRANSPORT:
3639                 res = DID_ERROR << 16;
3640                 vha->hw_err_cnt++;
3641
3642                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
3643                         break;
3644
3645                 if (state_flags & BIT_4)
3646                         scmd_printk(KERN_WARNING, cp,
3647                             "Unsupported device '%s' found.\n",
3648                             cp->device->vendor);
3649                 break;
3650
3651         case CS_DMA:
3652                 ql_log(ql_log_info, fcport->vha, 0x3022,
3653                     "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",
3654                     comp_status, scsi_status, res, vha->host_no,
3655                     cp->device->id, cp->device->lun, fcport->d_id.b24,
3656                     ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3657                     resid_len, fw_resid_len, sp, cp);
3658                 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
3659                     pkt, sizeof(*sts24));
3660                 res = DID_ERROR << 16;
3661                 vha->hw_err_cnt++;
3662                 break;
3663         default:
3664                 res = DID_ERROR << 16;
3665                 break;
3666         }
3667
3668 out:
3669         if (logit)
3670                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
3671                        "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
3672                        comp_status, scsi_status, res, vha->host_no,
3673                        cp->device->id, cp->device->lun, fcport->d_id.b.domain,
3674                        fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
3675                        cp->cmnd, scsi_bufflen(cp), rsp_info_len,
3676                        resid_len, fw_resid_len, sp, cp);
3677
3678         if (rsp->status_srb == NULL)
3679                 sp->done(sp, res);
3680
3681         /* for io's, clearing of outstanding_cmds[handle] means scsi_done was called */
3682         req->outstanding_cmds[handle] = NULL;
3683 }
3684
3685 /**
3686  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
3687  * @rsp: response queue
3688  * @pkt: Entry pointer
3689  *
3690  * Extended sense data.
3691  */
3692 static void
3693 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
3694 {
3695         uint8_t sense_sz = 0;
3696         struct qla_hw_data *ha = rsp->hw;
3697         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
3698         srb_t *sp = rsp->status_srb;
3699         struct scsi_cmnd *cp;
3700         uint32_t sense_len;
3701         uint8_t *sense_ptr;
3702
3703         if (!sp || !GET_CMD_SENSE_LEN(sp))
3704                 return;
3705
3706         sense_len = GET_CMD_SENSE_LEN(sp);
3707         sense_ptr = GET_CMD_SENSE_PTR(sp);
3708
3709         cp = GET_CMD_SP(sp);
3710         if (cp == NULL) {
3711                 ql_log(ql_log_warn, vha, 0x3025,
3712                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
3713
3714                 rsp->status_srb = NULL;
3715                 return;
3716         }
3717
3718         if (sense_len > sizeof(pkt->data))
3719                 sense_sz = sizeof(pkt->data);
3720         else
3721                 sense_sz = sense_len;
3722
3723         /* Move sense data. */
3724         if (IS_FWI2_CAPABLE(ha))
3725                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
3726         memcpy(sense_ptr, pkt->data, sense_sz);
3727         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
3728                 sense_ptr, sense_sz);
3729
3730         sense_len -= sense_sz;
3731         sense_ptr += sense_sz;
3732
3733         SET_CMD_SENSE_PTR(sp, sense_ptr);
3734         SET_CMD_SENSE_LEN(sp, sense_len);
3735
3736         /* Place command on done queue. */
3737         if (sense_len == 0) {
3738                 rsp->status_srb = NULL;
3739                 sp->done(sp, cp->result);
3740         }
3741 }
3742
3743 /**
3744  * qla2x00_error_entry() - Process an error entry.
3745  * @vha: SCSI driver HA context
3746  * @rsp: response queue
3747  * @pkt: Entry pointer
3748  * return : 1=allow further error analysis. 0=no additional error analysis.
3749  */
3750 static int
3751 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
3752 {
3753         srb_t *sp;
3754         struct qla_hw_data *ha = vha->hw;
3755         const char func[] = "ERROR-IOCB";
3756         uint16_t que = MSW(pkt->handle);
3757         struct req_que *req = NULL;
3758         int res = DID_ERROR << 16;
3759         u16 index;
3760
3761         ql_dbg(ql_dbg_async, vha, 0x502a,
3762             "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
3763             pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
3764
3765         if (que >= ha->max_req_queues || !ha->req_q_map[que])
3766                 goto fatal;
3767
3768         req = ha->req_q_map[que];
3769
3770         if (pkt->entry_status & RF_BUSY)
3771                 res = DID_BUS_BUSY << 16;
3772
3773         if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
3774                 return 0;
3775
3776         switch (pkt->entry_type) {
3777         case NOTIFY_ACK_TYPE:
3778         case STATUS_CONT_TYPE:
3779         case LOGINOUT_PORT_IOCB_TYPE:
3780         case CT_IOCB_TYPE:
3781         case ELS_IOCB_TYPE:
3782         case ABORT_IOCB_TYPE:
3783         case MBX_IOCB_TYPE:
3784         default:
3785                 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3786                 if (sp) {
3787                         sp->done(sp, res);
3788                         return 0;
3789                 }
3790                 break;
3791
3792         case SA_UPDATE_IOCB_TYPE:
3793         case ABTS_RESP_24XX:
3794         case CTIO_TYPE7:
3795         case CTIO_CRC2:
3796                 return 1;
3797         case STATUS_TYPE:
3798                 sp = qla_get_sp_from_handle(vha, func, req, pkt, &index);
3799                 if (sp) {
3800                         sp->done(sp, res);
3801                         req->outstanding_cmds[index] = NULL;
3802                         return 0;
3803                 }
3804                 break;
3805         }
3806 fatal:
3807         ql_log(ql_log_warn, vha, 0x5030,
3808             "Error entry - invalid handle/queue (%04x).\n", que);
3809         return 0;
3810 }
3811
3812 /**
3813  * qla24xx_mbx_completion() - Process mailbox command completions.
3814  * @vha: SCSI driver HA context
3815  * @mb0: Mailbox0 register
3816  */
3817 static void
3818 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
3819 {
3820         uint16_t        cnt;
3821         uint32_t        mboxes;
3822         __le16 __iomem *wptr;
3823         struct qla_hw_data *ha = vha->hw;
3824         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3825
3826         /* Read all mbox registers? */
3827         WARN_ON_ONCE(ha->mbx_count > 32);
3828         mboxes = (1ULL << ha->mbx_count) - 1;
3829         if (!ha->mcp)
3830                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
3831         else
3832                 mboxes = ha->mcp->in_mb;
3833
3834         /* Load return mailbox registers. */
3835         ha->flags.mbox_int = 1;
3836         ha->mailbox_out[0] = mb0;
3837         mboxes >>= 1;
3838         wptr = &reg->mailbox1;
3839
3840         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
3841                 if (mboxes & BIT_0)
3842                         ha->mailbox_out[cnt] = rd_reg_word(wptr);
3843
3844                 mboxes >>= 1;
3845                 wptr++;
3846         }
3847 }
3848
3849 static void
3850 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3851         struct abort_entry_24xx *pkt)
3852 {
3853         const char func[] = "ABT_IOCB";
3854         srb_t *sp;
3855         srb_t *orig_sp = NULL;
3856         struct srb_iocb *abt;
3857
3858         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3859         if (!sp)
3860                 return;
3861
3862         abt = &sp->u.iocb_cmd;
3863         abt->u.abt.comp_status = pkt->comp_status;
3864         orig_sp = sp->cmd_sp;
3865         /* Need to pass original sp */
3866         if (orig_sp)
3867                 qla_nvme_abort_process_comp_status(pkt, orig_sp);
3868
3869         sp->done(sp, 0);
3870 }
3871
3872 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
3873     struct pt_ls4_request *pkt, struct req_que *req)
3874 {
3875         srb_t *sp;
3876         const char func[] = "LS4_IOCB";
3877         uint16_t comp_status;
3878
3879         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3880         if (!sp)
3881                 return;
3882
3883         comp_status = le16_to_cpu(pkt->status);
3884         sp->done(sp, comp_status);
3885 }
3886
3887 /**
3888  * qla_chk_cont_iocb_avail - check for all continuation iocbs are available
3889  *   before iocb processing can start.
3890  * @vha: host adapter pointer
3891  * @rsp: respond queue
3892  * @pkt: head iocb describing how many continuation iocb
3893  * Return: 0 all iocbs has arrived, xx- all iocbs have not arrived.
3894  */
3895 static int qla_chk_cont_iocb_avail(struct scsi_qla_host *vha,
3896         struct rsp_que *rsp, response_t *pkt, u32 rsp_q_in)
3897 {
3898         int start_pkt_ring_index;
3899         u32 iocb_cnt = 0;
3900         int rc = 0;
3901
3902         if (pkt->entry_count == 1)
3903                 return rc;
3904
3905         /* ring_index was pre-increment. set it back to current pkt */
3906         if (rsp->ring_index == 0)
3907                 start_pkt_ring_index = rsp->length - 1;
3908         else
3909                 start_pkt_ring_index = rsp->ring_index - 1;
3910
3911         if (rsp_q_in < start_pkt_ring_index)
3912                 /* q in ptr is wrapped */
3913                 iocb_cnt = rsp->length - start_pkt_ring_index + rsp_q_in;
3914         else
3915                 iocb_cnt = rsp_q_in - start_pkt_ring_index;
3916
3917         if (iocb_cnt < pkt->entry_count)
3918                 rc = -EIO;
3919
3920         ql_dbg(ql_dbg_init, vha, 0x5091,
3921                "%s - ring %p pkt %p entry count %d iocb_cnt %d rsp_q_in %d rc %d\n",
3922                __func__, rsp->ring, pkt, pkt->entry_count, iocb_cnt, rsp_q_in, rc);
3923
3924         return rc;
3925 }
3926
3927 static void qla_marker_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
3928         struct mrk_entry_24xx *pkt)
3929 {
3930         const char func[] = "MRK-IOCB";
3931         srb_t *sp;
3932         int res = QLA_SUCCESS;
3933
3934         if (!IS_FWI2_CAPABLE(vha->hw))
3935                 return;
3936
3937         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
3938         if (!sp)
3939                 return;
3940
3941         if (pkt->entry_status) {
3942                 ql_dbg(ql_dbg_taskm, vha, 0x8025, "marker failure.\n");
3943                 res = QLA_COMMAND_ERROR;
3944         }
3945         sp->u.iocb_cmd.u.tmf.data = res;
3946         sp->done(sp, res);
3947 }
3948
3949 /**
3950  * qla24xx_process_response_queue() - Process response queue entries.
3951  * @vha: SCSI driver HA context
3952  * @rsp: response queue
3953  */
3954 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
3955         struct rsp_que *rsp)
3956 {
3957         struct sts_entry_24xx *pkt;
3958         struct qla_hw_data *ha = vha->hw;
3959         struct purex_entry_24xx *purex_entry;
3960         struct purex_item *pure_item;
3961         struct pt_ls4_rx_unsol *p;
3962         u16 rsp_in = 0, cur_ring_index;
3963         int is_shadow_hba;
3964
3965         if (!ha->flags.fw_started)
3966                 return;
3967
3968         if (rsp->qpair->cpuid != raw_smp_processor_id() || !rsp->qpair->rcv_intr) {
3969                 rsp->qpair->rcv_intr = 1;
3970
3971                 if (!rsp->qpair->cpu_mapped)
3972                         qla_cpu_update(rsp->qpair, raw_smp_processor_id());
3973         }
3974
3975 #define __update_rsp_in(_is_shadow_hba, _rsp, _rsp_in)                  \
3976         do {                                                            \
3977                 _rsp_in = _is_shadow_hba ? *(_rsp)->in_ptr :            \
3978                                 rd_reg_dword_relaxed((_rsp)->rsp_q_in); \
3979         } while (0)
3980
3981         is_shadow_hba = IS_SHADOW_REG_CAPABLE(ha);
3982
3983         __update_rsp_in(is_shadow_hba, rsp, rsp_in);
3984
3985         while (rsp->ring_index != rsp_in &&
3986                        rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
3987                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
3988                 cur_ring_index = rsp->ring_index;
3989
3990                 rsp->ring_index++;
3991                 if (rsp->ring_index == rsp->length) {
3992                         rsp->ring_index = 0;
3993                         rsp->ring_ptr = rsp->ring;
3994                 } else {
3995                         rsp->ring_ptr++;
3996                 }
3997
3998                 if (pkt->entry_status != 0) {
3999                         if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
4000                                 goto process_err;
4001
4002                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
4003                         wmb();
4004                         continue;
4005                 }
4006 process_err:
4007
4008                 switch (pkt->entry_type) {
4009                 case STATUS_TYPE:
4010                         qla2x00_status_entry(vha, rsp, pkt);
4011                         break;
4012                 case STATUS_CONT_TYPE:
4013                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
4014                         break;
4015                 case VP_RPT_ID_IOCB_TYPE:
4016                         qla24xx_report_id_acquisition(vha,
4017                             (struct vp_rpt_id_entry_24xx *)pkt);
4018                         break;
4019                 case LOGINOUT_PORT_IOCB_TYPE:
4020                         qla24xx_logio_entry(vha, rsp->req,
4021                             (struct logio_entry_24xx *)pkt);
4022                         break;
4023                 case CT_IOCB_TYPE:
4024                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
4025                         break;
4026                 case ELS_IOCB_TYPE:
4027                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
4028                         break;
4029                 case ABTS_RECV_24XX:
4030                         if (qla_ini_mode_enabled(vha)) {
4031                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
4032                                 if (!pure_item)
4033                                         break;
4034                                 qla24xx_queue_purex_item(vha, pure_item,
4035                                                          qla24xx_process_abts);
4036                                 break;
4037                         }
4038                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
4039                             IS_QLA28XX(ha)) {
4040                                 /* ensure that the ATIO queue is empty */
4041                                 qlt_handle_abts_recv(vha, rsp,
4042                                     (response_t *)pkt);
4043                                 break;
4044                         } else {
4045                                 qlt_24xx_process_atio_queue(vha, 1);
4046                         }
4047                         fallthrough;
4048                 case ABTS_RESP_24XX:
4049                 case CTIO_TYPE7:
4050                 case CTIO_CRC2:
4051                         qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
4052                         break;
4053                 case PT_LS4_REQUEST:
4054                         qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
4055                             rsp->req);
4056                         break;
4057                 case NOTIFY_ACK_TYPE:
4058                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
4059                                 qlt_response_pkt_all_vps(vha, rsp,
4060                                     (response_t *)pkt);
4061                         else
4062                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
4063                                         (struct nack_to_isp *)pkt);
4064                         break;
4065                 case MARKER_TYPE:
4066                         qla_marker_iocb_entry(vha, rsp->req, (struct mrk_entry_24xx *)pkt);
4067                         break;
4068                 case ABORT_IOCB_TYPE:
4069                         qla24xx_abort_iocb_entry(vha, rsp->req,
4070                             (struct abort_entry_24xx *)pkt);
4071                         break;
4072                 case MBX_IOCB_TYPE:
4073                         qla24xx_mbx_iocb_entry(vha, rsp->req,
4074                             (struct mbx_24xx_entry *)pkt);
4075                         break;
4076                 case VP_CTRL_IOCB_TYPE:
4077                         qla_ctrlvp_completed(vha, rsp->req,
4078                             (struct vp_ctrl_entry_24xx *)pkt);
4079                         break;
4080                 case PUREX_IOCB_TYPE:
4081                         purex_entry = (void *)pkt;
4082                         switch (purex_entry->els_frame_payload[3]) {
4083                         case ELS_RDP:
4084                                 pure_item = qla24xx_copy_std_pkt(vha, pkt);
4085                                 if (!pure_item)
4086                                         break;
4087                                 qla24xx_queue_purex_item(vha, pure_item,
4088                                                  qla24xx_process_purex_rdp);
4089                                 break;
4090                         case ELS_FPIN:
4091                                 if (!vha->hw->flags.scm_enabled) {
4092                                         ql_log(ql_log_warn, vha, 0x5094,
4093                                                "SCM not active for this port\n");
4094                                         break;
4095                                 }
4096                                 pure_item = qla27xx_copy_fpin_pkt(vha,
4097                                                           (void **)&pkt, &rsp);
4098                                 __update_rsp_in(is_shadow_hba, rsp, rsp_in);
4099                                 if (!pure_item)
4100                                         break;
4101                                 qla24xx_queue_purex_item(vha, pure_item,
4102                                                  qla27xx_process_purex_fpin);
4103                                 break;
4104
4105                         case ELS_AUTH_ELS:
4106                                 if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
4107                                         /*
4108                                          * ring_ptr and ring_index were
4109                                          * pre-incremented above. Reset them
4110                                          * back to current. Wait for next
4111                                          * interrupt with all IOCBs to arrive
4112                                          * and re-process.
4113                                          */
4114                                         rsp->ring_ptr = (response_t *)pkt;
4115                                         rsp->ring_index = cur_ring_index;
4116
4117                                         ql_dbg(ql_dbg_init, vha, 0x5091,
4118                                             "Defer processing ELS opcode %#x...\n",
4119                                             purex_entry->els_frame_payload[3]);
4120                                         return;
4121                                 }
4122                                 qla24xx_auth_els(vha, (void **)&pkt, &rsp);
4123                                 break;
4124                         default:
4125                                 ql_log(ql_log_warn, vha, 0x509c,
4126                                        "Discarding ELS Request opcode 0x%x\n",
4127                                        purex_entry->els_frame_payload[3]);
4128                         }
4129                         break;
4130                 case SA_UPDATE_IOCB_TYPE:
4131                         qla28xx_sa_update_iocb_entry(vha, rsp->req,
4132                                 (struct sa_update_28xx *)pkt);
4133                         break;
4134                 case PT_LS4_UNSOL:
4135                         p = (void *)pkt;
4136                         if (qla_chk_cont_iocb_avail(vha, rsp, (response_t *)pkt, rsp_in)) {
4137                                 rsp->ring_ptr = (response_t *)pkt;
4138                                 rsp->ring_index = cur_ring_index;
4139
4140                                 ql_dbg(ql_dbg_init, vha, 0x2124,
4141                                        "Defer processing UNSOL LS req opcode %#x...\n",
4142                                        p->payload[0]);
4143                                 return;
4144                         }
4145                         qla2xxx_process_purls_iocb((void **)&pkt, &rsp);
4146                         break;
4147                 default:
4148                         /* Type Not Supported. */
4149                         ql_dbg(ql_dbg_async, vha, 0x5042,
4150                                "Received unknown response pkt type 0x%x entry status=%x.\n",
4151                                pkt->entry_type, pkt->entry_status);
4152                         break;
4153                 }
4154                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
4155                 wmb();
4156         }
4157
4158         /* Adjust ring index */
4159         if (IS_P3P_TYPE(ha)) {
4160                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
4161
4162                 wrt_reg_dword(&reg->rsp_q_out[0], rsp->ring_index);
4163         } else {
4164                 wrt_reg_dword(rsp->rsp_q_out, rsp->ring_index);
4165         }
4166 }
4167
4168 static void
4169 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
4170 {
4171         int rval;
4172         uint32_t cnt;
4173         struct qla_hw_data *ha = vha->hw;
4174         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
4175
4176         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
4177             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4178                 return;
4179
4180         rval = QLA_SUCCESS;
4181         wrt_reg_dword(&reg->iobase_addr, 0x7C00);
4182         rd_reg_dword(&reg->iobase_addr);
4183         wrt_reg_dword(&reg->iobase_window, 0x0001);
4184         for (cnt = 10000; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
4185             rval == QLA_SUCCESS; cnt--) {
4186                 if (cnt) {
4187                         wrt_reg_dword(&reg->iobase_window, 0x0001);
4188                         udelay(10);
4189                 } else
4190                         rval = QLA_FUNCTION_TIMEOUT;
4191         }
4192         if (rval == QLA_SUCCESS)
4193                 goto next_test;
4194
4195         rval = QLA_SUCCESS;
4196         wrt_reg_dword(&reg->iobase_window, 0x0003);
4197         for (cnt = 100; (rd_reg_dword(&reg->iobase_window) & BIT_0) == 0 &&
4198             rval == QLA_SUCCESS; cnt--) {
4199                 if (cnt) {
4200                         wrt_reg_dword(&reg->iobase_window, 0x0003);
4201                         udelay(10);
4202                 } else
4203                         rval = QLA_FUNCTION_TIMEOUT;
4204         }
4205         if (rval != QLA_SUCCESS)
4206                 goto done;
4207
4208 next_test:
4209         if (rd_reg_dword(&reg->iobase_c8) & BIT_3)
4210                 ql_log(ql_log_info, vha, 0x504c,
4211                     "Additional code -- 0x55AA.\n");
4212
4213 done:
4214         wrt_reg_dword(&reg->iobase_window, 0x0000);
4215         rd_reg_dword(&reg->iobase_window);
4216 }
4217
4218 /**
4219  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
4220  * @irq: interrupt number
4221  * @dev_id: SCSI driver HA context
4222  *
4223  * Called by system whenever the host adapter generates an interrupt.
4224  *
4225  * Returns handled flag.
4226  */
4227 irqreturn_t
4228 qla24xx_intr_handler(int irq, void *dev_id)
4229 {
4230         scsi_qla_host_t *vha;
4231         struct qla_hw_data *ha;
4232         struct device_reg_24xx __iomem *reg;
4233         int             status;
4234         unsigned long   iter;
4235         uint32_t        stat;
4236         uint32_t        hccr;
4237         uint16_t        mb[8];
4238         struct rsp_que *rsp;
4239         unsigned long   flags;
4240         bool process_atio = false;
4241
4242         rsp = (struct rsp_que *) dev_id;
4243         if (!rsp) {
4244                 ql_log(ql_log_info, NULL, 0x5059,
4245                     "%s: NULL response queue pointer.\n", __func__);
4246                 return IRQ_NONE;
4247         }
4248
4249         ha = rsp->hw;
4250         reg = &ha->iobase->isp24;
4251         status = 0;
4252
4253         if (unlikely(pci_channel_offline(ha->pdev)))
4254                 return IRQ_HANDLED;
4255
4256         spin_lock_irqsave(&ha->hardware_lock, flags);
4257         vha = pci_get_drvdata(ha->pdev);
4258         for (iter = 50; iter--; ) {
4259                 stat = rd_reg_dword(&reg->host_status);
4260                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4261                         break;
4262                 if (stat & HSRX_RISC_PAUSED) {
4263                         if (unlikely(pci_channel_offline(ha->pdev)))
4264                                 break;
4265
4266                         hccr = rd_reg_dword(&reg->hccr);
4267
4268                         ql_log(ql_log_warn, vha, 0x504b,
4269                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4270                             hccr);
4271
4272                         qla2xxx_check_risc_status(vha);
4273
4274                         ha->isp_ops->fw_dump(vha);
4275                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4276                         break;
4277                 } else if ((stat & HSRX_RISC_INT) == 0)
4278                         break;
4279
4280                 switch (stat & 0xff) {
4281                 case INTR_ROM_MB_SUCCESS:
4282                 case INTR_ROM_MB_FAILED:
4283                 case INTR_MB_SUCCESS:
4284                 case INTR_MB_FAILED:
4285                         qla24xx_mbx_completion(vha, MSW(stat));
4286                         status |= MBX_INTERRUPT;
4287
4288                         break;
4289                 case INTR_ASYNC_EVENT:
4290                         mb[0] = MSW(stat);
4291                         mb[1] = rd_reg_word(&reg->mailbox1);
4292                         mb[2] = rd_reg_word(&reg->mailbox2);
4293                         mb[3] = rd_reg_word(&reg->mailbox3);
4294                         qla2x00_async_event(vha, rsp, mb);
4295                         break;
4296                 case INTR_RSP_QUE_UPDATE:
4297                 case INTR_RSP_QUE_UPDATE_83XX:
4298                         qla24xx_process_response_queue(vha, rsp);
4299                         break;
4300                 case INTR_ATIO_QUE_UPDATE_27XX:
4301                 case INTR_ATIO_QUE_UPDATE:
4302                         process_atio = true;
4303                         break;
4304                 case INTR_ATIO_RSP_QUE_UPDATE:
4305                         process_atio = true;
4306                         qla24xx_process_response_queue(vha, rsp);
4307                         break;
4308                 default:
4309                         ql_dbg(ql_dbg_async, vha, 0x504f,
4310                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
4311                         break;
4312                 }
4313                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4314                 rd_reg_dword_relaxed(&reg->hccr);
4315                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
4316                         ndelay(3500);
4317         }
4318         qla2x00_handle_mbx_completion(ha, status);
4319         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4320
4321         if (process_atio) {
4322                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4323                 qlt_24xx_process_atio_queue(vha, 0);
4324                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4325         }
4326
4327         return IRQ_HANDLED;
4328 }
4329
4330 static irqreturn_t
4331 qla24xx_msix_rsp_q(int irq, void *dev_id)
4332 {
4333         struct qla_hw_data *ha;
4334         struct rsp_que *rsp;
4335         struct device_reg_24xx __iomem *reg;
4336         struct scsi_qla_host *vha;
4337         unsigned long flags;
4338
4339         rsp = (struct rsp_que *) dev_id;
4340         if (!rsp) {
4341                 ql_log(ql_log_info, NULL, 0x505a,
4342                     "%s: NULL response queue pointer.\n", __func__);
4343                 return IRQ_NONE;
4344         }
4345         ha = rsp->hw;
4346         reg = &ha->iobase->isp24;
4347
4348         spin_lock_irqsave(&ha->hardware_lock, flags);
4349
4350         vha = pci_get_drvdata(ha->pdev);
4351         qla24xx_process_response_queue(vha, rsp);
4352         if (!ha->flags.disable_msix_handshake) {
4353                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4354                 rd_reg_dword_relaxed(&reg->hccr);
4355         }
4356         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4357
4358         return IRQ_HANDLED;
4359 }
4360
4361 static irqreturn_t
4362 qla24xx_msix_default(int irq, void *dev_id)
4363 {
4364         scsi_qla_host_t *vha;
4365         struct qla_hw_data *ha;
4366         struct rsp_que *rsp;
4367         struct device_reg_24xx __iomem *reg;
4368         int             status;
4369         uint32_t        stat;
4370         uint32_t        hccr;
4371         uint16_t        mb[8];
4372         unsigned long flags;
4373         bool process_atio = false;
4374
4375         rsp = (struct rsp_que *) dev_id;
4376         if (!rsp) {
4377                 ql_log(ql_log_info, NULL, 0x505c,
4378                     "%s: NULL response queue pointer.\n", __func__);
4379                 return IRQ_NONE;
4380         }
4381         ha = rsp->hw;
4382         reg = &ha->iobase->isp24;
4383         status = 0;
4384
4385         spin_lock_irqsave(&ha->hardware_lock, flags);
4386         vha = pci_get_drvdata(ha->pdev);
4387         do {
4388                 stat = rd_reg_dword(&reg->host_status);
4389                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
4390                         break;
4391                 if (stat & HSRX_RISC_PAUSED) {
4392                         if (unlikely(pci_channel_offline(ha->pdev)))
4393                                 break;
4394
4395                         hccr = rd_reg_dword(&reg->hccr);
4396
4397                         ql_log(ql_log_info, vha, 0x5050,
4398                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
4399                             hccr);
4400
4401                         qla2xxx_check_risc_status(vha);
4402                         vha->hw_err_cnt++;
4403
4404                         ha->isp_ops->fw_dump(vha);
4405                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
4406                         break;
4407                 } else if ((stat & HSRX_RISC_INT) == 0)
4408                         break;
4409
4410                 switch (stat & 0xff) {
4411                 case INTR_ROM_MB_SUCCESS:
4412                 case INTR_ROM_MB_FAILED:
4413                 case INTR_MB_SUCCESS:
4414                 case INTR_MB_FAILED:
4415                         qla24xx_mbx_completion(vha, MSW(stat));
4416                         status |= MBX_INTERRUPT;
4417
4418                         break;
4419                 case INTR_ASYNC_EVENT:
4420                         mb[0] = MSW(stat);
4421                         mb[1] = rd_reg_word(&reg->mailbox1);
4422                         mb[2] = rd_reg_word(&reg->mailbox2);
4423                         mb[3] = rd_reg_word(&reg->mailbox3);
4424                         qla2x00_async_event(vha, rsp, mb);
4425                         break;
4426                 case INTR_RSP_QUE_UPDATE:
4427                 case INTR_RSP_QUE_UPDATE_83XX:
4428                         qla24xx_process_response_queue(vha, rsp);
4429                         break;
4430                 case INTR_ATIO_QUE_UPDATE_27XX:
4431                 case INTR_ATIO_QUE_UPDATE:
4432                         process_atio = true;
4433                         break;
4434                 case INTR_ATIO_RSP_QUE_UPDATE:
4435                         process_atio = true;
4436                         qla24xx_process_response_queue(vha, rsp);
4437                         break;
4438                 default:
4439                         ql_dbg(ql_dbg_async, vha, 0x5051,
4440                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
4441                         break;
4442                 }
4443                 wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4444         } while (0);
4445         qla2x00_handle_mbx_completion(ha, status);
4446         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4447
4448         if (process_atio) {
4449                 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
4450                 qlt_24xx_process_atio_queue(vha, 0);
4451                 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
4452         }
4453
4454         return IRQ_HANDLED;
4455 }
4456
4457 irqreturn_t
4458 qla2xxx_msix_rsp_q(int irq, void *dev_id)
4459 {
4460         struct qla_hw_data *ha;
4461         struct qla_qpair *qpair;
4462
4463         qpair = dev_id;
4464         if (!qpair) {
4465                 ql_log(ql_log_info, NULL, 0x505b,
4466                     "%s: NULL response queue pointer.\n", __func__);
4467                 return IRQ_NONE;
4468         }
4469         ha = qpair->hw;
4470
4471         queue_work(ha->wq, &qpair->q_work);
4472
4473         return IRQ_HANDLED;
4474 }
4475
4476 irqreturn_t
4477 qla2xxx_msix_rsp_q_hs(int irq, void *dev_id)
4478 {
4479         struct qla_hw_data *ha;
4480         struct qla_qpair *qpair;
4481         struct device_reg_24xx __iomem *reg;
4482         unsigned long flags;
4483
4484         qpair = dev_id;
4485         if (!qpair) {
4486                 ql_log(ql_log_info, NULL, 0x505b,
4487                     "%s: NULL response queue pointer.\n", __func__);
4488                 return IRQ_NONE;
4489         }
4490         ha = qpair->hw;
4491
4492         reg = &ha->iobase->isp24;
4493         spin_lock_irqsave(&ha->hardware_lock, flags);
4494         wrt_reg_dword(&reg->hccr, HCCRX_CLR_RISC_INT);
4495         spin_unlock_irqrestore(&ha->hardware_lock, flags);
4496
4497         queue_work(ha->wq, &qpair->q_work);
4498
4499         return IRQ_HANDLED;
4500 }
4501
4502 /* Interrupt handling helpers. */
4503
4504 struct qla_init_msix_entry {
4505         const char *name;
4506         irq_handler_t handler;
4507 };
4508
4509 static const struct qla_init_msix_entry msix_entries[] = {
4510         { "default", qla24xx_msix_default },
4511         { "rsp_q", qla24xx_msix_rsp_q },
4512         { "atio_q", qla83xx_msix_atio_q },
4513         { "qpair_multiq", qla2xxx_msix_rsp_q },
4514         { "qpair_multiq_hs", qla2xxx_msix_rsp_q_hs },
4515 };
4516
4517 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
4518         { "qla2xxx (default)", qla82xx_msix_default },
4519         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
4520 };
4521
4522 static int
4523 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
4524 {
4525         int i, ret;
4526         struct qla_msix_entry *qentry;
4527         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4528         int min_vecs = QLA_BASE_VECTORS;
4529         struct irq_affinity desc = {
4530                 .pre_vectors = QLA_BASE_VECTORS,
4531         };
4532
4533         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4534             IS_ATIO_MSIX_CAPABLE(ha)) {
4535                 desc.pre_vectors++;
4536                 min_vecs++;
4537         }
4538
4539         if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
4540                 /* user wants to control IRQ setting for target mode */
4541                 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
4542                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4543                     PCI_IRQ_MSIX);
4544         } else
4545                 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
4546                     min((u16)ha->msix_count, (u16)(num_online_cpus() + min_vecs)),
4547                     PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
4548                     &desc);
4549
4550         if (ret < 0) {
4551                 ql_log(ql_log_fatal, vha, 0x00c7,
4552                     "MSI-X: Failed to enable support, "
4553                     "giving   up -- %d/%d.\n",
4554                     ha->msix_count, ret);
4555                 goto msix_out;
4556         } else if (ret < ha->msix_count) {
4557                 ql_log(ql_log_info, vha, 0x00c6,
4558                     "MSI-X: Using %d vectors\n", ret);
4559                 ha->msix_count = ret;
4560                 /* Recalculate queue values */
4561                 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
4562                         ha->max_req_queues = ha->msix_count - 1;
4563
4564                         /* ATIOQ needs 1 vector. That's 1 less QPair */
4565                         if (QLA_TGT_MODE_ENABLED())
4566                                 ha->max_req_queues--;
4567
4568                         ha->max_rsp_queues = ha->max_req_queues;
4569
4570                         ha->max_qpairs = ha->max_req_queues - 1;
4571                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
4572                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
4573                 }
4574         }
4575         vha->irq_offset = desc.pre_vectors;
4576         ha->msix_entries = kcalloc(ha->msix_count,
4577                                    sizeof(struct qla_msix_entry),
4578                                    GFP_KERNEL);
4579         if (!ha->msix_entries) {
4580                 ql_log(ql_log_fatal, vha, 0x00c8,
4581                     "Failed to allocate memory for ha->msix_entries.\n");
4582                 ret = -ENOMEM;
4583                 goto free_irqs;
4584         }
4585         ha->flags.msix_enabled = 1;
4586
4587         for (i = 0; i < ha->msix_count; i++) {
4588                 qentry = &ha->msix_entries[i];
4589                 qentry->vector = pci_irq_vector(ha->pdev, i);
4590                 qentry->vector_base0 = i;
4591                 qentry->entry = i;
4592                 qentry->have_irq = 0;
4593                 qentry->in_use = 0;
4594                 qentry->handle = NULL;
4595         }
4596
4597         /* Enable MSI-X vectors for the base queue */
4598         for (i = 0; i < QLA_BASE_VECTORS; i++) {
4599                 qentry = &ha->msix_entries[i];
4600                 qentry->handle = rsp;
4601                 rsp->msix = qentry;
4602                 scnprintf(qentry->name, sizeof(qentry->name),
4603                     "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
4604                 if (IS_P3P_TYPE(ha))
4605                         ret = request_irq(qentry->vector,
4606                                 qla82xx_msix_entries[i].handler,
4607                                 0, qla82xx_msix_entries[i].name, rsp);
4608                 else
4609                         ret = request_irq(qentry->vector,
4610                                 msix_entries[i].handler,
4611                                 0, qentry->name, rsp);
4612                 if (ret)
4613                         goto msix_register_fail;
4614                 qentry->have_irq = 1;
4615                 qentry->in_use = 1;
4616         }
4617
4618         /*
4619          * If target mode is enable, also request the vector for the ATIO
4620          * queue.
4621          */
4622         if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
4623             IS_ATIO_MSIX_CAPABLE(ha)) {
4624                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
4625                 rsp->msix = qentry;
4626                 qentry->handle = rsp;
4627                 scnprintf(qentry->name, sizeof(qentry->name),
4628                     "qla2xxx%lu_%s", vha->host_no,
4629                     msix_entries[QLA_ATIO_VECTOR].name);
4630                 qentry->in_use = 1;
4631                 ret = request_irq(qentry->vector,
4632                         msix_entries[QLA_ATIO_VECTOR].handler,
4633                         0, qentry->name, rsp);
4634                 qentry->have_irq = 1;
4635         }
4636
4637 msix_register_fail:
4638         if (ret) {
4639                 ql_log(ql_log_fatal, vha, 0x00cb,
4640                     "MSI-X: unable to register handler -- %x/%d.\n",
4641                     qentry->vector, ret);
4642                 qla2x00_free_irqs(vha);
4643                 ha->mqenable = 0;
4644                 goto msix_out;
4645         }
4646
4647         /* Enable MSI-X vector for response queue update for queue 0 */
4648         if (IS_MQUE_CAPABLE(ha) &&
4649             (ha->msixbase && ha->mqiobase && ha->max_qpairs))
4650                 ha->mqenable = 1;
4651         else
4652                 ha->mqenable = 0;
4653
4654         ql_dbg(ql_dbg_multiq, vha, 0xc005,
4655             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4656             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4657         ql_dbg(ql_dbg_init, vha, 0x0055,
4658             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
4659             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
4660
4661 msix_out:
4662         return ret;
4663
4664 free_irqs:
4665         pci_free_irq_vectors(ha->pdev);
4666         goto msix_out;
4667 }
4668
4669 int
4670 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
4671 {
4672         int ret = QLA_FUNCTION_FAILED;
4673         device_reg_t *reg = ha->iobase;
4674         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4675
4676         /* If possible, enable MSI-X. */
4677         if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
4678             !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
4679             !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
4680                 goto skip_msi;
4681
4682         if (ql2xenablemsix == 2)
4683                 goto skip_msix;
4684
4685         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
4686                 (ha->pdev->subsystem_device == 0x7040 ||
4687                 ha->pdev->subsystem_device == 0x7041 ||
4688                 ha->pdev->subsystem_device == 0x1705)) {
4689                 ql_log(ql_log_warn, vha, 0x0034,
4690                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
4691                         ha->pdev->subsystem_vendor,
4692                         ha->pdev->subsystem_device);
4693                 goto skip_msi;
4694         }
4695
4696         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
4697                 ql_log(ql_log_warn, vha, 0x0035,
4698                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
4699                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
4700                 goto skip_msix;
4701         }
4702
4703         ret = qla24xx_enable_msix(ha, rsp);
4704         if (!ret) {
4705                 ql_dbg(ql_dbg_init, vha, 0x0036,
4706                     "MSI-X: Enabled (0x%X, 0x%X).\n",
4707                     ha->chip_revision, ha->fw_attributes);
4708                 goto clear_risc_ints;
4709         }
4710
4711 skip_msix:
4712
4713         ql_log(ql_log_info, vha, 0x0037,
4714             "Falling back-to MSI mode -- ret=%d.\n", ret);
4715
4716         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
4717             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
4718             !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
4719                 goto skip_msi;
4720
4721         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
4722         if (ret > 0) {
4723                 ql_dbg(ql_dbg_init, vha, 0x0038,
4724                     "MSI: Enabled.\n");
4725                 ha->flags.msi_enabled = 1;
4726         } else
4727                 ql_log(ql_log_warn, vha, 0x0039,
4728                     "Falling back-to INTa mode -- ret=%d.\n", ret);
4729 skip_msi:
4730
4731         /* Skip INTx on ISP82xx. */
4732         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
4733                 return QLA_FUNCTION_FAILED;
4734
4735         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
4736             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
4737             QLA2XXX_DRIVER_NAME, rsp);
4738         if (ret) {
4739                 ql_log(ql_log_warn, vha, 0x003a,
4740                     "Failed to reserve interrupt %d already in use.\n",
4741                     ha->pdev->irq);
4742                 goto fail;
4743         } else if (!ha->flags.msi_enabled) {
4744                 ql_dbg(ql_dbg_init, vha, 0x0125,
4745                     "INTa mode: Enabled.\n");
4746                 ha->flags.mr_intr_valid = 1;
4747                 /* Set max_qpair to 0, as MSI-X and MSI in not enabled */
4748                 ha->max_qpairs = 0;
4749         }
4750
4751 clear_risc_ints:
4752         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
4753                 goto fail;
4754
4755         spin_lock_irq(&ha->hardware_lock);
4756         wrt_reg_word(&reg->isp.semaphore, 0);
4757         spin_unlock_irq(&ha->hardware_lock);
4758
4759 fail:
4760         return ret;
4761 }
4762
4763 void
4764 qla2x00_free_irqs(scsi_qla_host_t *vha)
4765 {
4766         struct qla_hw_data *ha = vha->hw;
4767         struct rsp_que *rsp;
4768         struct qla_msix_entry *qentry;
4769         int i;
4770
4771         /*
4772          * We need to check that ha->rsp_q_map is valid in case we are called
4773          * from a probe failure context.
4774          */
4775         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
4776                 goto free_irqs;
4777         rsp = ha->rsp_q_map[0];
4778
4779         if (ha->flags.msix_enabled) {
4780                 for (i = 0; i < ha->msix_count; i++) {
4781                         qentry = &ha->msix_entries[i];
4782                         if (qentry->have_irq) {
4783                                 irq_set_affinity_notifier(qentry->vector, NULL);
4784                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
4785                         }
4786                 }
4787                 kfree(ha->msix_entries);
4788                 ha->msix_entries = NULL;
4789                 ha->flags.msix_enabled = 0;
4790                 ql_dbg(ql_dbg_init, vha, 0x0042,
4791                         "Disabled MSI-X.\n");
4792         } else {
4793                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
4794         }
4795
4796 free_irqs:
4797         pci_free_irq_vectors(ha->pdev);
4798 }
4799
4800 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
4801         struct qla_msix_entry *msix, int vector_type)
4802 {
4803         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
4804         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
4805         int ret;
4806
4807         scnprintf(msix->name, sizeof(msix->name),
4808             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
4809         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
4810         if (ret) {
4811                 ql_log(ql_log_fatal, vha, 0x00e6,
4812                     "MSI-X: Unable to register handler -- %x/%d.\n",
4813                     msix->vector, ret);
4814                 return ret;
4815         }
4816         msix->have_irq = 1;
4817         msix->handle = qpair;
4818         qla_mapq_init_qp_cpu_map(ha, msix, qpair);
4819         return ret;
4820 }