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