drivers/scsi/qla2xxx/qla_isr.c

   1 /*
   2  * QLogic Fibre Channel HBA Driver
   3  * Copyright (c)  2003-2014 QLogic Corporation
   4  *
   5  * See LICENSE.qla2xxx for copyright and licensing details.
   6  */
   7 #include "qla_def.h"
   8 #include "qla_target.h"
   9
  10 #include <linux/delay.h>
  11 #include <linux/slab.h>
  12 #include <linux/t10-pi.h>
  13 #include <scsi/scsi_tcq.h>
  14 #include <scsi/scsi_bsg_fc.h>
  15 #include <scsi/scsi_eh.h>
  16
  17 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  21         sts_entry_t *);
  22
  23 /**
  24  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
  25  * @irq:
  26  * @dev_id: SCSI driver HA context
  27  *
  28  * Called by system whenever the host adapter generates an interrupt.
  29  *
  30  * Returns handled flag.
  31  */
  32 irqreturn_t
  33 qla2100_intr_handler(int irq, void *dev_id)
  34 {
  35         scsi_qla_host_t *vha;
  36         struct qla_hw_data *ha;
  37         struct device_reg_2xxx __iomem *reg;
  38         int             status;
  39         unsigned long   iter;
  40         uint16_t        hccr;
  41         uint16_t        mb[4];
  42         struct rsp_que *rsp;
  43         unsigned long   flags;
  44
  45         rsp = (struct rsp_que *) dev_id;
  46         if (!rsp) {
  47                 ql_log(ql_log_info, NULL, 0x505d,
  48                     "%s: NULL response queue pointer.\n", __func__);
  49                 return (IRQ_NONE);
  50         }
  51
  52         ha = rsp->hw;
  53         reg = &ha->iobase->isp;
  54         status = 0;
  55
  56         spin_lock_irqsave(&ha->hardware_lock, flags);
  57         vha = pci_get_drvdata(ha->pdev);
  58         for (iter = 50; iter--; ) {
  59                 hccr = RD_REG_WORD(&reg->hccr);
  60                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
  61                         break;
  62                 if (hccr & HCCR_RISC_PAUSE) {
  63                         if (pci_channel_offline(ha->pdev))
  64                                 break;
  65
  66                         /*
  67                          * Issue a "HARD" reset in order for the RISC interrupt
  68                          * bit to be cleared.  Schedule a big hammer to get
  69                          * out of the RISC PAUSED state.
  70                          */
  71                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
  72                         RD_REG_WORD(&reg->hccr);
  73
  74                         ha->isp_ops->fw_dump(vha, 1);
  75                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
  76                         break;
  77                 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
  78                         break;
  79
  80                 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
  81                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
  82                         RD_REG_WORD(&reg->hccr);
  83
  84                         /* Get mailbox data. */
  85                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
  86                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
  87                                 qla2x00_mbx_completion(vha, mb[0]);
  88                                 status |= MBX_INTERRUPT;
  89                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
  90                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
  91                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
  92                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
  93                                 qla2x00_async_event(vha, rsp, mb);
  94                         } else {
  95                                 /*EMPTY*/
  96                                 ql_dbg(ql_dbg_async, vha, 0x5025,
  97                                     "Unrecognized interrupt type (%d).\n",
  98                                     mb[0]);
  99                         }
 100                         /* Release mailbox registers. */
 101                         WRT_REG_WORD(&reg->semaphore, 0);
 102                         RD_REG_WORD(&reg->semaphore);
 103                 } else {
 104                         qla2x00_process_response_queue(rsp);
 105
 106                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 107                         RD_REG_WORD(&reg->hccr);
 108                 }
 109         }
 110         qla2x00_handle_mbx_completion(ha, status);
 111         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 112
 113         return (IRQ_HANDLED);
 114 }
 115
 116 bool
 117 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 118 {
 119         /* Check for PCI disconnection */
 120         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 121                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 122                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 123                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 124                         /*
 125                          * Schedule this (only once) on the default system
 126                          * workqueue so that all the adapter workqueues and the
 127                          * DPC thread can be shutdown cleanly.
 128                          */
 129                         schedule_work(&vha->hw->board_disable);
 130                 }
 131                 return true;
 132         } else
 133                 return false;
 134 }
 135
 136 bool
 137 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 138 {
 139         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 140 }
 141
 142 /**
 143  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 144  * @irq:
 145  * @dev_id: SCSI driver HA context
 146  *
 147  * Called by system whenever the host adapter generates an interrupt.
 148  *
 149  * Returns handled flag.
 150  */
 151 irqreturn_t
 152 qla2300_intr_handler(int irq, void *dev_id)
 153 {
 154         scsi_qla_host_t *vha;
 155         struct device_reg_2xxx __iomem *reg;
 156         int             status;
 157         unsigned long   iter;
 158         uint32_t        stat;
 159         uint16_t        hccr;
 160         uint16_t        mb[4];
 161         struct rsp_que *rsp;
 162         struct qla_hw_data *ha;
 163         unsigned long   flags;
 164
 165         rsp = (struct rsp_que *) dev_id;
 166         if (!rsp) {
 167                 ql_log(ql_log_info, NULL, 0x5058,
 168                     "%s: NULL response queue pointer.\n", __func__);
 169                 return (IRQ_NONE);
 170         }
 171
 172         ha = rsp->hw;
 173         reg = &ha->iobase->isp;
 174         status = 0;
 175
 176         spin_lock_irqsave(&ha->hardware_lock, flags);
 177         vha = pci_get_drvdata(ha->pdev);
 178         for (iter = 50; iter--; ) {
 179                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
 180                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 181                         break;
 182                 if (stat & HSR_RISC_PAUSED) {
 183                         if (unlikely(pci_channel_offline(ha->pdev)))
 184                                 break;
 185
 186                         hccr = RD_REG_WORD(&reg->hccr);
 187
 188                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 189                                 ql_log(ql_log_warn, vha, 0x5026,
 190                                     "Parity error -- HCCR=%x, Dumping "
 191                                     "firmware.\n", hccr);
 192                         else
 193                                 ql_log(ql_log_warn, vha, 0x5027,
 194                                     "RISC paused -- HCCR=%x, Dumping "
 195                                     "firmware.\n", hccr);
 196
 197                         /*
 198                          * Issue a "HARD" reset in order for the RISC
 199                          * interrupt bit to be cleared.  Schedule a big
 200                          * hammer to get out of the RISC PAUSED state.
 201                          */
 202                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 203                         RD_REG_WORD(&reg->hccr);
 204
 205                         ha->isp_ops->fw_dump(vha, 1);
 206                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 207                         break;
 208                 } else if ((stat & HSR_RISC_INT) == 0)
 209                         break;
 210
 211                 switch (stat & 0xff) {
 212                 case 0x1:
 213                 case 0x2:
 214                 case 0x10:
 215                 case 0x11:
 216                         qla2x00_mbx_completion(vha, MSW(stat));
 217                         status |= MBX_INTERRUPT;
 218
 219                         /* Release mailbox registers. */
 220                         WRT_REG_WORD(&reg->semaphore, 0);
 221                         break;
 222                 case 0x12:
 223                         mb[0] = MSW(stat);
 224                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 225                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 226                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 227                         qla2x00_async_event(vha, rsp, mb);
 228                         break;
 229                 case 0x13:
 230                         qla2x00_process_response_queue(rsp);
 231                         break;
 232                 case 0x15:
 233                         mb[0] = MBA_CMPLT_1_16BIT;
 234                         mb[1] = MSW(stat);
 235                         qla2x00_async_event(vha, rsp, mb);
 236                         break;
 237                 case 0x16:
 238                         mb[0] = MBA_SCSI_COMPLETION;
 239                         mb[1] = MSW(stat);
 240                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 241                         qla2x00_async_event(vha, rsp, mb);
 242                         break;
 243                 default:
 244                         ql_dbg(ql_dbg_async, vha, 0x5028,
 245                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 246                         break;
 247                 }
 248                 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 249                 RD_REG_WORD_RELAXED(&reg->hccr);
 250         }
 251         qla2x00_handle_mbx_completion(ha, status);
 252         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 253
 254         return (IRQ_HANDLED);
 255 }
 256
 257 /**
 258  * qla2x00_mbx_completion() - Process mailbox command completions.
 259  * @ha: SCSI driver HA context
 260  * @mb0: Mailbox0 register
 261  */
 262 static void
 263 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 264 {
 265         uint16_t        cnt;
 266         uint32_t        mboxes;
 267         uint16_t __iomem *wptr;
 268         struct qla_hw_data *ha = vha->hw;
 269         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 270
 271         /* Read all mbox registers? */
 272         mboxes = (1 << ha->mbx_count) - 1;
 273         if (!ha->mcp)
 274                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 275         else
 276                 mboxes = ha->mcp->in_mb;
 277
 278         /* Load return mailbox registers. */
 279         ha->flags.mbox_int = 1;
 280         ha->mailbox_out[0] = mb0;
 281         mboxes >>= 1;
 282         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 283
 284         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 285                 if (IS_QLA2200(ha) && cnt == 8)
 286                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 287                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 288                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 289                 else if (mboxes & BIT_0)
 290                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 291
 292                 wptr++;
 293                 mboxes >>= 1;
 294         }
 295 }
 296
 297 static void
 298 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 299 {
 300         static char *event[] =
 301                 { "Complete", "Request Notification", "Time Extension" };
 302         int rval;
 303         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 304         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 305         uint16_t __iomem *wptr;
 306         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 307
 308         /* Seed data -- mailbox1 -> mailbox7. */
 309         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 310                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 311         else if (IS_QLA8044(vha->hw))
 312                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 313         else
 314                 return;
 315
 316         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 317                 mb[cnt] = RD_REG_WORD(wptr);
 318
 319         ql_dbg(ql_dbg_async, vha, 0x5021,
 320             "Inter-Driver Communication %s -- "
 321             "%04x %04x %04x %04x %04x %04x %04x.\n",
 322             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 323             mb[4], mb[5], mb[6]);
 324         switch (aen) {
 325         /* Handle IDC Error completion case. */
 326         case MBA_IDC_COMPLETE:
 327                 if (mb[1] >> 15) {
 328                         vha->hw->flags.idc_compl_status = 1;
 329                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 330                                 complete(&vha->hw->dcbx_comp);
 331                 }
 332                 break;
 333
 334         case MBA_IDC_NOTIFY:
 335                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 336                 timeout = (descr >> 8) & 0xf;
 337                 ql_dbg(ql_dbg_async, vha, 0x5022,
 338                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 339                     vha->host_no, event[aen & 0xff], timeout);
 340
 341                 if (!timeout)
 342                         return;
 343                 rval = qla2x00_post_idc_ack_work(vha, mb);
 344                 if (rval != QLA_SUCCESS)
 345                         ql_log(ql_log_warn, vha, 0x5023,
 346                             "IDC failed to post ACK.\n");
 347                 break;
 348         case MBA_IDC_TIME_EXT:
 349                 vha->hw->idc_extend_tmo = descr;
 350                 ql_dbg(ql_dbg_async, vha, 0x5087,
 351                     "%lu Inter-Driver Communication %s -- "
 352                     "Extend timeout by=%d.\n",
 353                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 354                 break;
 355         }
 356 }
 357
 358 #define LS_UNKNOWN      2
 359 const char *
 360 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 361 {
 362         static const char *const link_speeds[] = {
 363                 "1", "2", "?", "4", "8", "16", "32", "10"
 364         };
 365 #define QLA_LAST_SPEED  7
 366
 367         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 368                 return link_speeds[0];
 369         else if (speed == 0x13)
 370                 return link_speeds[QLA_LAST_SPEED];
 371         else if (speed < QLA_LAST_SPEED)
 372                 return link_speeds[speed];
 373         else
 374                 return link_speeds[LS_UNKNOWN];
 375 }
 376
 377 static void
 378 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 379 {
 380         struct qla_hw_data *ha = vha->hw;
 381
 382         /*
 383          * 8200 AEN Interpretation:
 384          * mb[0] = AEN code
 385          * mb[1] = AEN Reason code
 386          * mb[2] = LSW of Peg-Halt Status-1 Register
 387          * mb[6] = MSW of Peg-Halt Status-1 Register
 388          * mb[3] = LSW of Peg-Halt Status-2 register
 389          * mb[7] = MSW of Peg-Halt Status-2 register
 390          * mb[4] = IDC Device-State Register value
 391          * mb[5] = IDC Driver-Presence Register value
 392          */
 393         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 394             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 395             mb[0], mb[1], mb[2], mb[6]);
 396         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 397             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 398             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 399
 400         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 401                                 IDC_HEARTBEAT_FAILURE)) {
 402                 ha->flags.nic_core_hung = 1;
 403                 ql_log(ql_log_warn, vha, 0x5060,
 404                     "83XX: F/W Error Reported: Check if reset required.\n");
 405
 406                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 407                         uint32_t protocol_engine_id, fw_err_code, err_level;
 408
 409                         /*
 410                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 411                          *  - PEG-Halt Status-1 Register:
 412                          *      (LSW = mb[2], MSW = mb[6])
 413                          *      Bits 0-7   = protocol-engine ID
 414                          *      Bits 8-28  = f/w error code
 415                          *      Bits 29-31 = Error-level
 416                          *          Error-level 0x1 = Non-Fatal error
 417                          *          Error-level 0x2 = Recoverable Fatal error
 418                          *          Error-level 0x4 = UnRecoverable Fatal error
 419                          *  - PEG-Halt Status-2 Register:
 420                          *      (LSW = mb[3], MSW = mb[7])
 421                          */
 422                         protocol_engine_id = (mb[2] & 0xff);
 423                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 424                             ((mb[6] & 0x1fff) << 8));
 425                         err_level = ((mb[6] & 0xe000) >> 13);
 426                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 427                             "Register: protocol_engine_id=0x%x "
 428                             "fw_err_code=0x%x err_level=0x%x.\n",
 429                             protocol_engine_id, fw_err_code, err_level);
 430                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 431                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 432                         if (err_level == ERR_LEVEL_NON_FATAL) {
 433                                 ql_log(ql_log_warn, vha, 0x5063,
 434                                     "Not a fatal error, f/w has recovered "
 435                                     "iteself.\n");
 436                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 437                                 ql_log(ql_log_fatal, vha, 0x5064,
 438                                     "Recoverable Fatal error: Chip reset "
 439                                     "required.\n");
 440                                 qla83xx_schedule_work(vha,
 441                                     QLA83XX_NIC_CORE_RESET);
 442                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 443                                 ql_log(ql_log_fatal, vha, 0x5065,
 444                                     "Unrecoverable Fatal error: Set FAILED "
 445                                     "state, reboot required.\n");
 446                                 qla83xx_schedule_work(vha,
 447                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 448                         }
 449                 }
 450
 451                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 452                         uint16_t peg_fw_state, nw_interface_link_up;
 453                         uint16_t nw_interface_signal_detect, sfp_status;
 454                         uint16_t htbt_counter, htbt_monitor_enable;
 455                         uint16_t sfp_additonal_info, sfp_multirate;
 456                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 457
 458                         /*
 459                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 460                          *  - PEG-to-FC Status Register:
 461                          *      (LSW = mb[2], MSW = mb[6])
 462                          *      Bits 0-7   = Peg-Firmware state
 463                          *      Bit 8      = N/W Interface Link-up
 464                          *      Bit 9      = N/W Interface signal detected
 465                          *      Bits 10-11 = SFP Status
 466                          *        SFP Status 0x0 = SFP+ transceiver not expected
 467                          *        SFP Status 0x1 = SFP+ transceiver not present
 468                          *        SFP Status 0x2 = SFP+ transceiver invalid
 469                          *        SFP Status 0x3 = SFP+ transceiver present and
 470                          *        valid
 471                          *      Bits 12-14 = Heartbeat Counter
 472                          *      Bit 15     = Heartbeat Monitor Enable
 473                          *      Bits 16-17 = SFP Additional Info
 474                          *        SFP info 0x0 = Unregocnized transceiver for
 475                          *        Ethernet
 476                          *        SFP info 0x1 = SFP+ brand validation failed
 477                          *        SFP info 0x2 = SFP+ speed validation failed
 478                          *        SFP info 0x3 = SFP+ access error
 479                          *      Bit 18     = SFP Multirate
 480                          *      Bit 19     = SFP Tx Fault
 481                          *      Bits 20-22 = Link Speed
 482                          *      Bits 23-27 = Reserved
 483                          *      Bits 28-30 = DCBX Status
 484                          *        DCBX Status 0x0 = DCBX Disabled
 485                          *        DCBX Status 0x1 = DCBX Enabled
 486                          *        DCBX Status 0x2 = DCBX Exchange error
 487                          *      Bit 31     = Reserved
 488                          */
 489                         peg_fw_state = (mb[2] & 0x00ff);
 490                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 491                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 492                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 493                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 494                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 495                         sfp_additonal_info = (mb[6] & 0x0003);
 496                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 497                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 498                         link_speed = ((mb[6] & 0x0070) >> 4);
 499                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 500
 501                         ql_log(ql_log_warn, vha, 0x5066,
 502                             "Peg-to-Fc Status Register:\n"
 503                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 504                             "nw_interface_signal_detect=0x%x"
 505                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 506                             nw_interface_link_up, nw_interface_signal_detect,
 507                             sfp_status);
 508                         ql_log(ql_log_warn, vha, 0x5067,
 509                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 510                             "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
 511                             htbt_counter, htbt_monitor_enable,
 512                             sfp_additonal_info, sfp_multirate);
 513                         ql_log(ql_log_warn, vha, 0x5068,
 514                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 515                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 516                             dcbx_status);
 517
 518                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 519                 }
 520
 521                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 522                         ql_log(ql_log_warn, vha, 0x5069,
 523                             "Heartbeat Failure encountered, chip reset "
 524                             "required.\n");
 525
 526                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 527                 }
 528         }
 529
 530         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 531                 ql_log(ql_log_info, vha, 0x506a,
 532                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 533                 if (ha->flags.nic_core_reset_owner)
 534                         return;
 535                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 536         }
 537 }
 538
 539 int
 540 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 541 {
 542         struct qla_hw_data *ha = vha->hw;
 543         scsi_qla_host_t *vp;
 544         uint32_t vp_did;
 545         unsigned long flags;
 546         int ret = 0;
 547
 548         if (!ha->num_vhosts)
 549                 return ret;
 550
 551         spin_lock_irqsave(&ha->vport_slock, flags);
 552         list_for_each_entry(vp, &ha->vp_list, list) {
 553                 vp_did = vp->d_id.b24;
 554                 if (vp_did == rscn_entry) {
 555                         ret = 1;
 556                         break;
 557                 }
 558         }
 559         spin_unlock_irqrestore(&ha->vport_slock, flags);
 560
 561         return ret;
 562 }
 563
 564 fc_port_t *
 565 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 566 {
 567         fc_port_t *f, *tf;
 568
 569         f = tf = NULL;
 570         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
 571                 if (f->loop_id == loop_id)
 572                         return f;
 573         return NULL;
 574 }
 575
 576 fc_port_t *
 577 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
 578 {
 579         fc_port_t *f, *tf;
 580
 581         f = tf = NULL;
 582         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 583                 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
 584                         if (incl_deleted)
 585                                 return f;
 586                         else if (f->deleted == 0)
 587                                 return f;
 588                 }
 589         }
 590         return NULL;
 591 }
 592
 593 fc_port_t *
 594 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
 595         u8 incl_deleted)
 596 {
 597         fc_port_t *f, *tf;
 598
 599         f = tf = NULL;
 600         list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
 601                 if (f->d_id.b24 == id->b24) {
 602                         if (incl_deleted)
 603                                 return f;
 604                         else if (f->deleted == 0)
 605                                 return f;
 606                 }
 607         }
 608         return NULL;
 609 }
 610
 611 /**
 612  * qla2x00_async_event() - Process aynchronous events.
 613  * @ha: SCSI driver HA context
 614  * @mb: Mailbox registers (0 - 3)
 615  */
 616 void
 617 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 618 {
 619         uint16_t        handle_cnt;
 620         uint16_t        cnt, mbx;
 621         uint32_t        handles[5];
 622         struct qla_hw_data *ha = vha->hw;
 623         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 624         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 625         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 626         uint32_t        rscn_entry, host_pid;
 627         unsigned long   flags;
 628         fc_port_t       *fcport = NULL;
 629
 630         /* Setup to process RIO completion. */
 631         handle_cnt = 0;
 632         if (IS_CNA_CAPABLE(ha))
 633                 goto skip_rio;
 634         switch (mb[0]) {
 635         case MBA_SCSI_COMPLETION:
 636                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 637                 handle_cnt = 1;
 638                 break;
 639         case MBA_CMPLT_1_16BIT:
 640                 handles[0] = mb[1];
 641                 handle_cnt = 1;
 642                 mb[0] = MBA_SCSI_COMPLETION;
 643                 break;
 644         case MBA_CMPLT_2_16BIT:
 645                 handles[0] = mb[1];
 646                 handles[1] = mb[2];
 647                 handle_cnt = 2;
 648                 mb[0] = MBA_SCSI_COMPLETION;
 649                 break;
 650         case MBA_CMPLT_3_16BIT:
 651                 handles[0] = mb[1];
 652                 handles[1] = mb[2];
 653                 handles[2] = mb[3];
 654                 handle_cnt = 3;
 655                 mb[0] = MBA_SCSI_COMPLETION;
 656                 break;
 657         case MBA_CMPLT_4_16BIT:
 658                 handles[0] = mb[1];
 659                 handles[1] = mb[2];
 660                 handles[2] = mb[3];
 661                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 662                 handle_cnt = 4;
 663                 mb[0] = MBA_SCSI_COMPLETION;
 664                 break;
 665         case MBA_CMPLT_5_16BIT:
 666                 handles[0] = mb[1];
 667                 handles[1] = mb[2];
 668                 handles[2] = mb[3];
 669                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 670                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 671                 handle_cnt = 5;
 672                 mb[0] = MBA_SCSI_COMPLETION;
 673                 break;
 674         case MBA_CMPLT_2_32BIT:
 675                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 676                 handles[1] = le32_to_cpu(
 677                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 678                     RD_MAILBOX_REG(ha, reg, 6));
 679                 handle_cnt = 2;
 680                 mb[0] = MBA_SCSI_COMPLETION;
 681                 break;
 682         default:
 683                 break;
 684         }
 685 skip_rio:
 686         switch (mb[0]) {
 687         case MBA_SCSI_COMPLETION:       /* Fast Post */
 688                 if (!vha->flags.online)
 689                         break;
 690
 691                 for (cnt = 0; cnt < handle_cnt; cnt++)
 692                         qla2x00_process_completed_request(vha, rsp->req,
 693                                 handles[cnt]);
 694                 break;
 695
 696         case MBA_RESET:                 /* Reset */
 697                 ql_dbg(ql_dbg_async, vha, 0x5002,
 698                     "Asynchronous RESET.\n");
 699
 700                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 701                 break;
 702
 703         case MBA_SYSTEM_ERR:            /* System Error */
 704                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 705                         RD_REG_WORD(&reg24->mailbox7) : 0;
 706                 ql_log(ql_log_warn, vha, 0x5003,
 707                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 708                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 709
 710                 ha->isp_ops->fw_dump(vha, 1);
 711
 712                 if (IS_FWI2_CAPABLE(ha)) {
 713                         if (mb[1] == 0 && mb[2] == 0) {
 714                                 ql_log(ql_log_fatal, vha, 0x5004,
 715                                     "Unrecoverable Hardware Error: adapter "
 716                                     "marked OFFLINE!\n");
 717                                 vha->flags.online = 0;
 718                                 vha->device_flags |= DFLG_DEV_FAILED;
 719                         } else {
 720                                 /* Check to see if MPI timeout occurred */
 721                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 722                                         set_bit(MPI_RESET_NEEDED,
 723                                             &vha->dpc_flags);
 724
 725                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 726                         }
 727                 } else if (mb[1] == 0) {
 728                         ql_log(ql_log_fatal, vha, 0x5005,
 729                             "Unrecoverable Hardware Error: adapter marked "
 730                             "OFFLINE!\n");
 731                         vha->flags.online = 0;
 732                         vha->device_flags |= DFLG_DEV_FAILED;
 733                 } else
 734                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 735                 break;
 736
 737         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 738                 ql_log(ql_log_warn, vha, 0x5006,
 739                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 740
 741                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 742                 break;
 743
 744         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 745                 ql_log(ql_log_warn, vha, 0x5007,
 746                     "ISP Response Transfer Error (%x).\n", mb[1]);
 747
 748                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 749                 break;
 750
 751         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 752                 ql_dbg(ql_dbg_async, vha, 0x5008,
 753                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 754                 break;
 755
 756         case MBA_LOOP_INIT_ERR:
 757                 ql_log(ql_log_warn, vha, 0x5090,
 758                     "LOOP INIT ERROR (%x).\n", mb[1]);
 759                 ha->isp_ops->fw_dump(vha, 1);
 760                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 761                 break;
 762
 763         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 764                 ql_dbg(ql_dbg_async, vha, 0x5009,
 765                     "LIP occurred (%x).\n", mb[1]);
 766
 767                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 768                         atomic_set(&vha->loop_state, LOOP_DOWN);
 769                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 770                         qla2x00_mark_all_devices_lost(vha, 1);
 771                 }
 772
 773                 if (vha->vp_idx) {
 774                         atomic_set(&vha->vp_state, VP_FAILED);
 775                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 776                 }
 777
 778                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 779                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 780
 781                 vha->flags.management_server_logged_in = 0;
 782                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 783                 break;
 784
 785         case MBA_LOOP_UP:               /* Loop Up Event */
 786                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 787                         ha->link_data_rate = PORT_SPEED_1GB;
 788                 else
 789                         ha->link_data_rate = mb[1];
 790
 791                 ql_log(ql_log_info, vha, 0x500a,
 792                     "LOOP UP detected (%s Gbps).\n",
 793                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 794
 795                 vha->flags.management_server_logged_in = 0;
 796                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 797                 break;
 798
 799         case MBA_LOOP_DOWN:             /* Loop Down Event */
 800                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 801                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 802                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 803                         : mbx;
 804                 ql_log(ql_log_info, vha, 0x500b,
 805                     "LOOP DOWN detected (%x %x %x %x).\n",
 806                     mb[1], mb[2], mb[3], mbx);
 807
 808                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 809                         atomic_set(&vha->loop_state, LOOP_DOWN);
 810                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 811                         /*
 812                          * In case of loop down, restore WWPN from
 813                          * NVRAM in case of FA-WWPN capable ISP
 814                          * Restore for Physical Port only
 815                          */
 816                         if (!vha->vp_idx) {
 817                                 if (ha->flags.fawwpn_enabled) {
 818                                         void *wwpn = ha->init_cb->port_name;
 819                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
 820                                         fc_host_port_name(vha->host) =
 821                                             wwn_to_u64(vha->port_name);
 822                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
 823                                             vha, 0x0144, "LOOP DOWN detected,"
 824                                             "restore WWPN %016llx\n",
 825                                             wwn_to_u64(vha->port_name));
 826                                 }
 827
 828                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
 829                         }
 830
 831                         vha->device_flags |= DFLG_NO_CABLE;
 832                         qla2x00_mark_all_devices_lost(vha, 1);
 833                 }
 834
 835                 if (vha->vp_idx) {
 836                         atomic_set(&vha->vp_state, VP_FAILED);
 837                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 838                 }
 839
 840                 vha->flags.management_server_logged_in = 0;
 841                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
 842                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
 843                 break;
 844
 845         case MBA_LIP_RESET:             /* LIP reset occurred */
 846                 ql_dbg(ql_dbg_async, vha, 0x500c,
 847                     "LIP reset occurred (%x).\n", mb[1]);
 848
 849                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 850                         atomic_set(&vha->loop_state, LOOP_DOWN);
 851                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 852                         qla2x00_mark_all_devices_lost(vha, 1);
 853                 }
 854
 855                 if (vha->vp_idx) {
 856                         atomic_set(&vha->vp_state, VP_FAILED);
 857                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 858                 }
 859
 860                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 861
 862                 ha->operating_mode = LOOP;
 863                 vha->flags.management_server_logged_in = 0;
 864                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
 865                 break;
 866
 867         /* case MBA_DCBX_COMPLETE: */
 868         case MBA_POINT_TO_POINT:        /* Point-to-Point */
 869                 if (IS_QLA2100(ha))
 870                         break;
 871
 872                 if (IS_CNA_CAPABLE(ha)) {
 873                         ql_dbg(ql_dbg_async, vha, 0x500d,
 874                             "DCBX Completed -- %04x %04x %04x.\n",
 875                             mb[1], mb[2], mb[3]);
 876                         if (ha->notify_dcbx_comp && !vha->vp_idx)
 877                                 complete(&ha->dcbx_comp);
 878
 879                 } else
 880                         ql_dbg(ql_dbg_async, vha, 0x500e,
 881                             "Asynchronous P2P MODE received.\n");
 882
 883                 /*
 884                  * Until there's a transition from loop down to loop up, treat
 885                  * this as loop down only.
 886                  */
 887                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 888                         atomic_set(&vha->loop_state, LOOP_DOWN);
 889                         if (!atomic_read(&vha->loop_down_timer))
 890                                 atomic_set(&vha->loop_down_timer,
 891                                     LOOP_DOWN_TIME);
 892                         qla2x00_mark_all_devices_lost(vha, 1);
 893                 }
 894
 895                 if (vha->vp_idx) {
 896                         atomic_set(&vha->vp_state, VP_FAILED);
 897                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 898                 }
 899
 900                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
 901                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 902
 903                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 904                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 905
 906                 ha->flags.gpsc_supported = 1;
 907                 vha->flags.management_server_logged_in = 0;
 908                 break;
 909
 910         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 911                 if (IS_QLA2100(ha))
 912                         break;
 913
 914                 ql_dbg(ql_dbg_async, vha, 0x500f,
 915                     "Configuration change detected: value=%x.\n", mb[1]);
 916
 917                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 918                         atomic_set(&vha->loop_state, LOOP_DOWN);
 919                         if (!atomic_read(&vha->loop_down_timer))
 920                                 atomic_set(&vha->loop_down_timer,
 921                                     LOOP_DOWN_TIME);
 922                         qla2x00_mark_all_devices_lost(vha, 1);
 923                 }
 924
 925                 if (vha->vp_idx) {
 926                         atomic_set(&vha->vp_state, VP_FAILED);
 927                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 928                 }
 929
 930                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 931                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 932                 break;
 933
 934         case MBA_PORT_UPDATE:           /* Port database update */
 935                 /*
 936                  * Handle only global and vn-port update events
 937                  *
 938                  * Relevant inputs:
 939                  * mb[1] = N_Port handle of changed port
 940                  * OR 0xffff for global event
 941                  * mb[2] = New login state
 942                  * 7 = Port logged out
 943                  * mb[3] = LSB is vp_idx, 0xff = all vps
 944                  *
 945                  * Skip processing if:
 946                  *       Event is global, vp_idx is NOT all vps,
 947                  *           vp_idx does not match
 948                  *       Event is not global, vp_idx does not match
 949                  */
 950                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 951                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 952                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 953                         break;
 954
 955                 if (mb[2] == 0x7) {
 956                         ql_dbg(ql_dbg_async, vha, 0x5010,
 957                             "Port %s %04x %04x %04x.\n",
 958                             mb[1] == 0xffff ? "unavailable" : "logout",
 959                             mb[1], mb[2], mb[3]);
 960
 961                         if (mb[1] == 0xffff)
 962                                 goto global_port_update;
 963
 964                         /* Port logout */
 965                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
 966                         if (!fcport)
 967                                 break;
 968                         if (atomic_read(&fcport->state) != FCS_ONLINE)
 969                                 break;
 970                         ql_dbg(ql_dbg_async, vha, 0x508a,
 971                             "Marking port lost loopid=%04x portid=%06x.\n",
 972                             fcport->loop_id, fcport->d_id.b24);
 973                         if (qla_ini_mode_enabled(vha)) {
 974                                 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
 975                                 fcport->logout_on_delete = 0;
 976                                 qlt_schedule_sess_for_deletion_lock(fcport);
 977                         }
 978                         break;
 979
 980 global_port_update:
 981                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 982                                 atomic_set(&vha->loop_state, LOOP_DOWN);
 983                                 atomic_set(&vha->loop_down_timer,
 984                                     LOOP_DOWN_TIME);
 985                                 vha->device_flags |= DFLG_NO_CABLE;
 986                                 qla2x00_mark_all_devices_lost(vha, 1);
 987                         }
 988
 989                         if (vha->vp_idx) {
 990                                 atomic_set(&vha->vp_state, VP_FAILED);
 991                                 fc_vport_set_state(vha->fc_vport,
 992                                     FC_VPORT_FAILED);
 993                                 qla2x00_mark_all_devices_lost(vha, 1);
 994                         }
 995
 996                         vha->flags.management_server_logged_in = 0;
 997                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
 998                         break;
 999                 }
1000
1001                 /*
1002                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1003                  * event etc. earlier indicating loop is down) then process
1004                  * it.  Otherwise ignore it and Wait for RSCN to come in.
1005                  */
1006                 atomic_set(&vha->loop_down_timer, 0);
1007                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1008                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
1009                         ql_dbg(ql_dbg_async, vha, 0x5011,
1010                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1011                             mb[1], mb[2], mb[3]);
1012
1013                         qlt_async_event(mb[0], vha, mb);
1014                         break;
1015                 }
1016
1017                 ql_dbg(ql_dbg_async, vha, 0x5012,
1018                     "Port database changed %04x %04x %04x.\n",
1019                     mb[1], mb[2], mb[3]);
1020
1021                 /*
1022                  * Mark all devices as missing so we will login again.
1023                  */
1024                 atomic_set(&vha->loop_state, LOOP_UP);
1025
1026                 qla2x00_mark_all_devices_lost(vha, 1);
1027
1028                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1029                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1030                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1031
1032                 qlt_async_event(mb[0], vha, mb);
1033                 break;
1034
1035         case MBA_RSCN_UPDATE:           /* State Change Registration */
1036                 /* Check if the Vport has issued a SCR */
1037                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1038                         break;
1039                 /* Only handle SCNs for our Vport index. */
1040                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1041                         break;
1042
1043                 ql_dbg(ql_dbg_async, vha, 0x5013,
1044                     "RSCN database changed -- %04x %04x %04x.\n",
1045                     mb[1], mb[2], mb[3]);
1046
1047                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1048                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1049                                 | vha->d_id.b.al_pa;
1050                 if (rscn_entry == host_pid) {
1051                         ql_dbg(ql_dbg_async, vha, 0x5014,
1052                             "Ignoring RSCN update to local host "
1053                             "port ID (%06x).\n", host_pid);
1054                         break;
1055                 }
1056
1057                 /* Ignore reserved bits from RSCN-payload. */
1058                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1059
1060                 /* Skip RSCNs for virtual ports on the same physical port */
1061                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1062                         break;
1063
1064                 atomic_set(&vha->loop_down_timer, 0);
1065                 vha->flags.management_server_logged_in = 0;
1066                 {
1067                         struct event_arg ea;
1068
1069                         memset(&ea, 0, sizeof(ea));
1070                         ea.event = FCME_RSCN;
1071                         ea.id.b24 = rscn_entry;
1072                         ea.id.b.rsvd_1 = rscn_entry >> 24;
1073                         qla2x00_fcport_event_handler(vha, &ea);
1074                         qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1075                 }
1076                 break;
1077         /* case MBA_RIO_RESPONSE: */
1078         case MBA_ZIO_RESPONSE:
1079                 ql_dbg(ql_dbg_async, vha, 0x5015,
1080                     "[R|Z]IO update completion.\n");
1081
1082                 if (IS_FWI2_CAPABLE(ha))
1083                         qla24xx_process_response_queue(vha, rsp);
1084                 else
1085                         qla2x00_process_response_queue(rsp);
1086                 break;
1087
1088         case MBA_DISCARD_RND_FRAME:
1089                 ql_dbg(ql_dbg_async, vha, 0x5016,
1090                     "Discard RND Frame -- %04x %04x %04x.\n",
1091                     mb[1], mb[2], mb[3]);
1092                 break;
1093
1094         case MBA_TRACE_NOTIFICATION:
1095                 ql_dbg(ql_dbg_async, vha, 0x5017,
1096                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1097                 break;
1098
1099         case MBA_ISP84XX_ALERT:
1100                 ql_dbg(ql_dbg_async, vha, 0x5018,
1101                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1102                     mb[1], mb[2], mb[3]);
1103
1104                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1105                 switch (mb[1]) {
1106                 case A84_PANIC_RECOVERY:
1107                         ql_log(ql_log_info, vha, 0x5019,
1108                             "Alert 84XX: panic recovery %04x %04x.\n",
1109                             mb[2], mb[3]);
1110                         break;
1111                 case A84_OP_LOGIN_COMPLETE:
1112                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1113                         ql_log(ql_log_info, vha, 0x501a,
1114                             "Alert 84XX: firmware version %x.\n",
1115                             ha->cs84xx->op_fw_version);
1116                         break;
1117                 case A84_DIAG_LOGIN_COMPLETE:
1118                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1119                         ql_log(ql_log_info, vha, 0x501b,
1120                             "Alert 84XX: diagnostic firmware version %x.\n",
1121                             ha->cs84xx->diag_fw_version);
1122                         break;
1123                 case A84_GOLD_LOGIN_COMPLETE:
1124                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1125                         ha->cs84xx->fw_update = 1;
1126                         ql_log(ql_log_info, vha, 0x501c,
1127                             "Alert 84XX: gold firmware version %x.\n",
1128                             ha->cs84xx->gold_fw_version);
1129                         break;
1130                 default:
1131                         ql_log(ql_log_warn, vha, 0x501d,
1132                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1133                             mb[1], mb[2], mb[3]);
1134                 }
1135                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1136                 break;
1137         case MBA_DCBX_START:
1138                 ql_dbg(ql_dbg_async, vha, 0x501e,
1139                     "DCBX Started -- %04x %04x %04x.\n",
1140                     mb[1], mb[2], mb[3]);
1141                 break;
1142         case MBA_DCBX_PARAM_UPDATE:
1143                 ql_dbg(ql_dbg_async, vha, 0x501f,
1144                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1145                     mb[1], mb[2], mb[3]);
1146                 break;
1147         case MBA_FCF_CONF_ERR:
1148                 ql_dbg(ql_dbg_async, vha, 0x5020,
1149                     "FCF Configuration Error -- %04x %04x %04x.\n",
1150                     mb[1], mb[2], mb[3]);
1151                 break;
1152         case MBA_IDC_NOTIFY:
1153                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1154                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1155                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1156                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1157                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1158                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1159                                 /*
1160                                  * Extend loop down timer since port is active.
1161                                  */
1162                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1163                                         atomic_set(&vha->loop_down_timer,
1164                                             LOOP_DOWN_TIME);
1165                                 qla2xxx_wake_dpc(vha);
1166                         }
1167                 }
1168         case MBA_IDC_COMPLETE:
1169                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1170                         complete(&ha->lb_portup_comp);
1171                 /* Fallthru */
1172         case MBA_IDC_TIME_EXT:
1173                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1174                     IS_QLA8044(ha))
1175                         qla81xx_idc_event(vha, mb[0], mb[1]);
1176                 break;
1177
1178         case MBA_IDC_AEN:
1179                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1180                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1181                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1182                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1183                 qla83xx_handle_8200_aen(vha, mb);
1184                 break;
1185
1186         case MBA_DPORT_DIAGNOSTICS:
1187                 ql_dbg(ql_dbg_async, vha, 0x5052,
1188                     "D-Port Diagnostics: %04x result=%s\n",
1189                     mb[0],
1190                     mb[1] == 0 ? "start" :
1191                     mb[1] == 1 ? "done (pass)" :
1192                     mb[1] == 2 ? "done (error)" : "other");
1193                 break;
1194
1195         case MBA_TEMPERATURE_ALERT:
1196                 ql_dbg(ql_dbg_async, vha, 0x505e,
1197                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1198                 if (mb[1] == 0x12)
1199                         schedule_work(&ha->board_disable);
1200                 break;
1201
1202         default:
1203                 ql_dbg(ql_dbg_async, vha, 0x5057,
1204                     "Unknown AEN:%04x %04x %04x %04x\n",
1205                     mb[0], mb[1], mb[2], mb[3]);
1206         }
1207
1208         qlt_async_event(mb[0], vha, mb);
1209
1210         if (!vha->vp_idx && ha->num_vhosts)
1211                 qla2x00_alert_all_vps(rsp, mb);
1212 }
1213
1214 /**
1215  * qla2x00_process_completed_request() - Process a Fast Post response.
1216  * @ha: SCSI driver HA context
1217  * @index: SRB index
1218  */
1219 void
1220 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1221                                   struct req_que *req, uint32_t index)
1222 {
1223         srb_t *sp;
1224         struct qla_hw_data *ha = vha->hw;
1225
1226         /* Validate handle. */
1227         if (index >= req->num_outstanding_cmds) {
1228                 ql_log(ql_log_warn, vha, 0x3014,
1229                     "Invalid SCSI command index (%x).\n", index);
1230
1231                 if (IS_P3P_TYPE(ha))
1232                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1233                 else
1234                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1235                 return;
1236         }
1237
1238         sp = req->outstanding_cmds[index];
1239         if (sp) {
1240                 /* Free outstanding command slot. */
1241                 req->outstanding_cmds[index] = NULL;
1242
1243                 /* Save ISP completion status */
1244                 sp->done(sp, DID_OK << 16);
1245         } else {
1246                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1247
1248                 if (IS_P3P_TYPE(ha))
1249                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1250                 else
1251                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1252         }
1253 }
1254
1255 srb_t *
1256 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1257     struct req_que *req, void *iocb)
1258 {
1259         struct qla_hw_data *ha = vha->hw;
1260         sts_entry_t *pkt = iocb;
1261         srb_t *sp = NULL;
1262         uint16_t index;
1263
1264         index = LSW(pkt->handle);
1265         if (index >= req->num_outstanding_cmds) {
1266                 ql_log(ql_log_warn, vha, 0x5031,
1267                            "Invalid command index (%x) type %8ph.\n",
1268                            index, iocb);
1269                 if (IS_P3P_TYPE(ha))
1270                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1271                 else
1272                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1273                 goto done;
1274         }
1275         sp = req->outstanding_cmds[index];
1276         if (!sp) {
1277                 ql_log(ql_log_warn, vha, 0x5032,
1278                     "Invalid completion handle (%x) -- timed-out.\n", index);
1279                 return sp;
1280         }
1281         if (sp->handle != index) {
1282                 ql_log(ql_log_warn, vha, 0x5033,
1283                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1284                 return NULL;
1285         }
1286
1287         req->outstanding_cmds[index] = NULL;
1288
1289 done:
1290         return sp;
1291 }
1292
1293 static void
1294 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1295     struct mbx_entry *mbx)
1296 {
1297         const char func[] = "MBX-IOCB";
1298         const char *type;
1299         fc_port_t *fcport;
1300         srb_t *sp;
1301         struct srb_iocb *lio;
1302         uint16_t *data;
1303         uint16_t status;
1304
1305         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1306         if (!sp)
1307                 return;
1308
1309         lio = &sp->u.iocb_cmd;
1310         type = sp->name;
1311         fcport = sp->fcport;
1312         data = lio->u.logio.data;
1313
1314         data[0] = MBS_COMMAND_ERROR;
1315         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1316             QLA_LOGIO_LOGIN_RETRIED : 0;
1317         if (mbx->entry_status) {
1318                 ql_dbg(ql_dbg_async, vha, 0x5043,
1319                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1320                     "entry-status=%x status=%x state-flag=%x "
1321                     "status-flags=%x.\n", type, sp->handle,
1322                     fcport->d_id.b.domain, fcport->d_id.b.area,
1323                     fcport->d_id.b.al_pa, mbx->entry_status,
1324                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1325                     le16_to_cpu(mbx->status_flags));
1326
1327                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1328                     (uint8_t *)mbx, sizeof(*mbx));
1329
1330                 goto logio_done;
1331         }
1332
1333         status = le16_to_cpu(mbx->status);
1334         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1335             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1336                 status = 0;
1337         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1338                 ql_dbg(ql_dbg_async, vha, 0x5045,
1339                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1340                     type, sp->handle, fcport->d_id.b.domain,
1341                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1342                     le16_to_cpu(mbx->mb1));
1343
1344                 data[0] = MBS_COMMAND_COMPLETE;
1345                 if (sp->type == SRB_LOGIN_CMD) {
1346                         fcport->port_type = FCT_TARGET;
1347                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1348                                 fcport->port_type = FCT_INITIATOR;
1349                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1350                                 fcport->flags |= FCF_FCP2_DEVICE;
1351                 }
1352                 goto logio_done;
1353         }
1354
1355         data[0] = le16_to_cpu(mbx->mb0);
1356         switch (data[0]) {
1357         case MBS_PORT_ID_USED:
1358                 data[1] = le16_to_cpu(mbx->mb1);
1359                 break;
1360         case MBS_LOOP_ID_USED:
1361                 break;
1362         default:
1363                 data[0] = MBS_COMMAND_ERROR;
1364                 break;
1365         }
1366
1367         ql_log(ql_log_warn, vha, 0x5046,
1368             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1369             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1370             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1371             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1372             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1373             le16_to_cpu(mbx->mb7));
1374
1375 logio_done:
1376         sp->done(sp, 0);
1377 }
1378
1379 static void
1380 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1381     struct mbx_24xx_entry *pkt)
1382 {
1383         const char func[] = "MBX-IOCB2";
1384         srb_t *sp;
1385         struct srb_iocb *si;
1386         u16 sz, i;
1387         int res;
1388
1389         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1390         if (!sp)
1391                 return;
1392
1393         si = &sp->u.iocb_cmd;
1394         sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1395
1396         for (i = 0; i < sz; i++)
1397                 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1398
1399         res = (si->u.mbx.in_mb[0] & MBS_MASK);
1400
1401         sp->done(sp, res);
1402 }
1403
1404 static void
1405 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1406     struct nack_to_isp *pkt)
1407 {
1408         const char func[] = "nack";
1409         srb_t *sp;
1410         int res = 0;
1411
1412         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1413         if (!sp)
1414                 return;
1415
1416         if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1417                 res = QLA_FUNCTION_FAILED;
1418
1419         sp->done(sp, res);
1420 }
1421
1422 static void
1423 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1424     sts_entry_t *pkt, int iocb_type)
1425 {
1426         const char func[] = "CT_IOCB";
1427         const char *type;
1428         srb_t *sp;
1429         struct bsg_job *bsg_job;
1430         struct fc_bsg_reply *bsg_reply;
1431         uint16_t comp_status;
1432         int res = 0;
1433
1434         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1435         if (!sp)
1436                 return;
1437
1438         switch (sp->type) {
1439         case SRB_CT_CMD:
1440             bsg_job = sp->u.bsg_job;
1441             bsg_reply = bsg_job->reply;
1442
1443             type = "ct pass-through";
1444
1445             comp_status = le16_to_cpu(pkt->comp_status);
1446
1447             /*
1448              * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1449              * fc payload  to the caller
1450              */
1451             bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1452             bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1453
1454             if (comp_status != CS_COMPLETE) {
1455                     if (comp_status == CS_DATA_UNDERRUN) {
1456                             res = DID_OK << 16;
1457                             bsg_reply->reply_payload_rcv_len =
1458                                 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1459
1460                             ql_log(ql_log_warn, vha, 0x5048,
1461                                 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1462                                 type, comp_status,
1463                                 bsg_reply->reply_payload_rcv_len);
1464                     } else {
1465                             ql_log(ql_log_warn, vha, 0x5049,
1466                                 "CT pass-through-%s error comp_status=0x%x.\n",
1467                                 type, comp_status);
1468                             res = DID_ERROR << 16;
1469                             bsg_reply->reply_payload_rcv_len = 0;
1470                     }
1471                     ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1472                         (uint8_t *)pkt, sizeof(*pkt));
1473             } else {
1474                     res = DID_OK << 16;
1475                     bsg_reply->reply_payload_rcv_len =
1476                         bsg_job->reply_payload.payload_len;
1477                     bsg_job->reply_len = 0;
1478             }
1479             break;
1480         case SRB_CT_PTHRU_CMD:
1481             /*
1482              * borrowing sts_entry_24xx.comp_status.
1483              * same location as ct_entry_24xx.comp_status
1484              */
1485              res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1486                  (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1487                  sp->name);
1488              break;
1489         }
1490
1491         sp->done(sp, res);
1492 }
1493
1494 static void
1495 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1496     struct sts_entry_24xx *pkt, int iocb_type)
1497 {
1498         const char func[] = "ELS_CT_IOCB";
1499         const char *type;
1500         srb_t *sp;
1501         struct bsg_job *bsg_job;
1502         struct fc_bsg_reply *bsg_reply;
1503         uint16_t comp_status;
1504         uint32_t fw_status[3];
1505         uint8_t* fw_sts_ptr;
1506         int res;
1507
1508         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1509         if (!sp)
1510                 return;
1511         bsg_job = sp->u.bsg_job;
1512         bsg_reply = bsg_job->reply;
1513
1514         type = NULL;
1515         switch (sp->type) {
1516         case SRB_ELS_CMD_RPT:
1517         case SRB_ELS_CMD_HST:
1518                 type = "els";
1519                 break;
1520         case SRB_CT_CMD:
1521                 type = "ct pass-through";
1522                 break;
1523         case SRB_ELS_DCMD:
1524                 type = "Driver ELS logo";
1525                 ql_dbg(ql_dbg_user, vha, 0x5047,
1526                     "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1527                 sp->done(sp, 0);
1528                 return;
1529         case SRB_CT_PTHRU_CMD:
1530                 /* borrowing sts_entry_24xx.comp_status.
1531                    same location as ct_entry_24xx.comp_status
1532                  */
1533                 res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1534                         (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1535                         sp->name);
1536                 sp->done(sp, res);
1537                 return;
1538         default:
1539                 ql_dbg(ql_dbg_user, vha, 0x503e,
1540                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1541                 return;
1542         }
1543
1544         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1545         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1546         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1547
1548         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1549          * fc payload  to the caller
1550          */
1551         bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1552         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1553
1554         if (comp_status != CS_COMPLETE) {
1555                 if (comp_status == CS_DATA_UNDERRUN) {
1556                         res = DID_OK << 16;
1557                         bsg_reply->reply_payload_rcv_len =
1558                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1559
1560                         ql_dbg(ql_dbg_user, vha, 0x503f,
1561                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1562                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1563                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1564                             le16_to_cpu(((struct els_sts_entry_24xx *)
1565                                 pkt)->total_byte_count));
1566                         fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) +
1567                                 sizeof(struct fc_bsg_reply);
1568                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1569                 }
1570                 else {
1571                         ql_dbg(ql_dbg_user, vha, 0x5040,
1572                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1573                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1574                             type, sp->handle, comp_status,
1575                             le16_to_cpu(((struct els_sts_entry_24xx *)
1576                                 pkt)->error_subcode_1),
1577                             le16_to_cpu(((struct els_sts_entry_24xx *)
1578                                     pkt)->error_subcode_2));
1579                         res = DID_ERROR << 16;
1580                         bsg_reply->reply_payload_rcv_len = 0;
1581                         fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) +
1582                                         sizeof(struct fc_bsg_reply);
1583                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1584                 }
1585                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1586                                 (uint8_t *)pkt, sizeof(*pkt));
1587         }
1588         else {
1589                 res =  DID_OK << 16;
1590                 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1591                 bsg_job->reply_len = 0;
1592         }
1593
1594         sp->done(sp, res);
1595 }
1596
1597 static void
1598 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1599     struct logio_entry_24xx *logio)
1600 {
1601         const char func[] = "LOGIO-IOCB";
1602         const char *type;
1603         fc_port_t *fcport;
1604         srb_t *sp;
1605         struct srb_iocb *lio;
1606         uint16_t *data;
1607         uint32_t iop[2];
1608
1609         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1610         if (!sp)
1611                 return;
1612
1613         lio = &sp->u.iocb_cmd;
1614         type = sp->name;
1615         fcport = sp->fcport;
1616         data = lio->u.logio.data;
1617
1618         data[0] = MBS_COMMAND_ERROR;
1619         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1620                 QLA_LOGIO_LOGIN_RETRIED : 0;
1621         if (logio->entry_status) {
1622                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1623                     "Async-%s error entry - hdl=%x"
1624                     "portid=%02x%02x%02x entry-status=%x.\n",
1625                     type, sp->handle, fcport->d_id.b.domain,
1626                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1627                     logio->entry_status);
1628                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1629                     (uint8_t *)logio, sizeof(*logio));
1630
1631                 goto logio_done;
1632         }
1633
1634         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1635                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1636                     "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1637                     "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1638                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1639                     le32_to_cpu(logio->io_parameter[0]));
1640
1641                 vha->hw->exch_starvation = 0;
1642                 data[0] = MBS_COMMAND_COMPLETE;
1643                 if (sp->type != SRB_LOGIN_CMD)
1644                         goto logio_done;
1645
1646                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1647                 if (iop[0] & BIT_4) {
1648                         fcport->port_type = FCT_TARGET;
1649                         if (iop[0] & BIT_8)
1650                                 fcport->flags |= FCF_FCP2_DEVICE;
1651                 } else if (iop[0] & BIT_5)
1652                         fcport->port_type = FCT_INITIATOR;
1653
1654                 if (iop[0] & BIT_7)
1655                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1656
1657                 if (logio->io_parameter[7] || logio->io_parameter[8])
1658                         fcport->supported_classes |= FC_COS_CLASS2;
1659                 if (logio->io_parameter[9] || logio->io_parameter[10])
1660                         fcport->supported_classes |= FC_COS_CLASS3;
1661
1662                 goto logio_done;
1663         }
1664
1665         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1666         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1667         lio->u.logio.iop[0] = iop[0];
1668         lio->u.logio.iop[1] = iop[1];
1669         switch (iop[0]) {
1670         case LSC_SCODE_PORTID_USED:
1671                 data[0] = MBS_PORT_ID_USED;
1672                 data[1] = LSW(iop[1]);
1673                 break;
1674         case LSC_SCODE_NPORT_USED:
1675                 data[0] = MBS_LOOP_ID_USED;
1676                 break;
1677         case LSC_SCODE_NOXCB:
1678                 vha->hw->exch_starvation++;
1679                 if (vha->hw->exch_starvation > 5) {
1680                         ql_log(ql_log_warn, vha, 0xffff,
1681                             "Exchange starvation. Resetting RISC\n");
1682
1683                         vha->hw->exch_starvation = 0;
1684
1685                         if (IS_P3P_TYPE(vha->hw))
1686                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1687                         else
1688                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1689                         qla2xxx_wake_dpc(vha);
1690                 }
1691                 /* drop through */
1692         default:
1693                 data[0] = MBS_COMMAND_ERROR;
1694                 break;
1695         }
1696
1697         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1698             "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1699             "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1700             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1701             le16_to_cpu(logio->comp_status),
1702             le32_to_cpu(logio->io_parameter[0]),
1703             le32_to_cpu(logio->io_parameter[1]));
1704
1705 logio_done:
1706         sp->done(sp, 0);
1707 }
1708
1709 static void
1710 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1711 {
1712         const char func[] = "TMF-IOCB";
1713         const char *type;
1714         fc_port_t *fcport;
1715         srb_t *sp;
1716         struct srb_iocb *iocb;
1717         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1718
1719         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1720         if (!sp)
1721                 return;
1722
1723         iocb = &sp->u.iocb_cmd;
1724         type = sp->name;
1725         fcport = sp->fcport;
1726         iocb->u.tmf.data = QLA_SUCCESS;
1727
1728         if (sts->entry_status) {
1729                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1730                     "Async-%s error - hdl=%x entry-status(%x).\n",
1731                     type, sp->handle, sts->entry_status);
1732                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1733         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1734                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1735                     "Async-%s error - hdl=%x completion status(%x).\n",
1736                     type, sp->handle, sts->comp_status);
1737                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1738         } else if ((le16_to_cpu(sts->scsi_status) &
1739             SS_RESPONSE_INFO_LEN_VALID)) {
1740                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1741                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1742                             "Async-%s error - hdl=%x not enough response(%d).\n",
1743                             type, sp->handle, sts->rsp_data_len);
1744                 } else if (sts->data[3]) {
1745                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1746                             "Async-%s error - hdl=%x response(%x).\n",
1747                             type, sp->handle, sts->data[3]);
1748                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1749                 }
1750         }
1751
1752         if (iocb->u.tmf.data != QLA_SUCCESS)
1753                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1754                     (uint8_t *)sts, sizeof(*sts));
1755
1756         sp->done(sp, 0);
1757 }
1758
1759 /**
1760  * qla2x00_process_response_queue() - Process response queue entries.
1761  * @ha: SCSI driver HA context
1762  */
1763 void
1764 qla2x00_process_response_queue(struct rsp_que *rsp)
1765 {
1766         struct scsi_qla_host *vha;
1767         struct qla_hw_data *ha = rsp->hw;
1768         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1769         sts_entry_t     *pkt;
1770         uint16_t        handle_cnt;
1771         uint16_t        cnt;
1772
1773         vha = pci_get_drvdata(ha->pdev);
1774
1775         if (!vha->flags.online)
1776                 return;
1777
1778         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1779                 pkt = (sts_entry_t *)rsp->ring_ptr;
1780
1781                 rsp->ring_index++;
1782                 if (rsp->ring_index == rsp->length) {
1783                         rsp->ring_index = 0;
1784                         rsp->ring_ptr = rsp->ring;
1785                 } else {
1786                         rsp->ring_ptr++;
1787                 }
1788
1789                 if (pkt->entry_status != 0) {
1790                         qla2x00_error_entry(vha, rsp, pkt);
1791                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1792                         wmb();
1793                         continue;
1794                 }
1795
1796                 switch (pkt->entry_type) {
1797                 case STATUS_TYPE:
1798                         qla2x00_status_entry(vha, rsp, pkt);
1799                         break;
1800                 case STATUS_TYPE_21:
1801                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1802                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1803                                 qla2x00_process_completed_request(vha, rsp->req,
1804                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1805                         }
1806                         break;
1807                 case STATUS_TYPE_22:
1808                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1809                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1810                                 qla2x00_process_completed_request(vha, rsp->req,
1811                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1812                         }
1813                         break;
1814                 case STATUS_CONT_TYPE:
1815                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1816                         break;
1817                 case MBX_IOCB_TYPE:
1818                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1819                             (struct mbx_entry *)pkt);
1820                         break;
1821                 case CT_IOCB_TYPE:
1822                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1823                         break;
1824                 default:
1825                         /* Type Not Supported. */
1826                         ql_log(ql_log_warn, vha, 0x504a,
1827                             "Received unknown response pkt type %x "
1828                             "entry status=%x.\n",
1829                             pkt->entry_type, pkt->entry_status);
1830                         break;
1831                 }
1832                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1833                 wmb();
1834         }
1835
1836         /* Adjust ring index */
1837         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1838 }
1839
1840 static inline void
1841 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1842                      uint32_t sense_len, struct rsp_que *rsp, int res)
1843 {
1844         struct scsi_qla_host *vha = sp->vha;
1845         struct scsi_cmnd *cp = GET_CMD_SP(sp);
1846         uint32_t track_sense_len;
1847
1848         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1849                 sense_len = SCSI_SENSE_BUFFERSIZE;
1850
1851         SET_CMD_SENSE_LEN(sp, sense_len);
1852         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1853         track_sense_len = sense_len;
1854
1855         if (sense_len > par_sense_len)
1856                 sense_len = par_sense_len;
1857
1858         memcpy(cp->sense_buffer, sense_data, sense_len);
1859
1860         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1861         track_sense_len -= sense_len;
1862         SET_CMD_SENSE_LEN(sp, track_sense_len);
1863
1864         if (track_sense_len != 0) {
1865                 rsp->status_srb = sp;
1866                 cp->result = res;
1867         }
1868
1869         if (sense_len) {
1870                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1871                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1872                     sp->vha->host_no, cp->device->id, cp->device->lun,
1873                     cp);
1874                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1875                     cp->sense_buffer, sense_len);
1876         }
1877 }
1878
1879 struct scsi_dif_tuple {
1880         __be16 guard;       /* Checksum */
1881         __be16 app_tag;         /* APPL identifier */
1882         __be32 ref_tag;         /* Target LBA or indirect LBA */
1883 };
1884
1885 /*
1886  * Checks the guard or meta-data for the type of error
1887  * detected by the HBA. In case of errors, we set the
1888  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1889  * to indicate to the kernel that the HBA detected error.
1890  */
1891 static inline int
1892 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1893 {
1894         struct scsi_qla_host *vha = sp->vha;
1895         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1896         uint8_t         *ap = &sts24->data[12];
1897         uint8_t         *ep = &sts24->data[20];
1898         uint32_t        e_ref_tag, a_ref_tag;
1899         uint16_t        e_app_tag, a_app_tag;
1900         uint16_t        e_guard, a_guard;
1901
1902         /*
1903          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1904          * would make guard field appear at offset 2
1905          */
1906         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
1907         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1908         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1909         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
1910         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1911         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1912
1913         ql_dbg(ql_dbg_io, vha, 0x3023,
1914             "iocb(s) %p Returned STATUS.\n", sts24);
1915
1916         ql_dbg(ql_dbg_io, vha, 0x3024,
1917             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1918             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1919             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1920             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1921             a_app_tag, e_app_tag, a_guard, e_guard);
1922
1923         /*
1924          * Ignore sector if:
1925          * For type     3: ref & app tag is all 'f's
1926          * For type 0,1,2: app tag is all 'f's
1927          */
1928         if ((a_app_tag == 0xffff) &&
1929             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1930              (a_ref_tag == 0xffffffff))) {
1931                 uint32_t blocks_done, resid;
1932                 sector_t lba_s = scsi_get_lba(cmd);
1933
1934                 /* 2TB boundary case covered automatically with this */
1935                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1936
1937                 resid = scsi_bufflen(cmd) - (blocks_done *
1938                     cmd->device->sector_size);
1939
1940                 scsi_set_resid(cmd, resid);
1941                 cmd->result = DID_OK << 16;
1942
1943                 /* Update protection tag */
1944                 if (scsi_prot_sg_count(cmd)) {
1945                         uint32_t i, j = 0, k = 0, num_ent;
1946                         struct scatterlist *sg;
1947                         struct t10_pi_tuple *spt;
1948
1949                         /* Patch the corresponding protection tags */
1950                         scsi_for_each_prot_sg(cmd, sg,
1951                             scsi_prot_sg_count(cmd), i) {
1952                                 num_ent = sg_dma_len(sg) / 8;
1953                                 if (k + num_ent < blocks_done) {
1954                                         k += num_ent;
1955                                         continue;
1956                                 }
1957                                 j = blocks_done - k - 1;
1958                                 k = blocks_done;
1959                                 break;
1960                         }
1961
1962                         if (k != blocks_done) {
1963                                 ql_log(ql_log_warn, vha, 0x302f,
1964                                     "unexpected tag values tag:lba=%x:%llx)\n",
1965                                     e_ref_tag, (unsigned long long)lba_s);
1966                                 return 1;
1967                         }
1968
1969                         spt = page_address(sg_page(sg)) + sg->offset;
1970                         spt += j;
1971
1972                         spt->app_tag = 0xffff;
1973                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1974                                 spt->ref_tag = 0xffffffff;
1975                 }
1976
1977                 return 0;
1978         }
1979
1980         /* check guard */
1981         if (e_guard != a_guard) {
1982                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1983                     0x10, 0x1);
1984                 set_driver_byte(cmd, DRIVER_SENSE);
1985                 set_host_byte(cmd, DID_ABORT);
1986                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1987                 return 1;
1988         }
1989
1990         /* check ref tag */
1991         if (e_ref_tag != a_ref_tag) {
1992                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1993                     0x10, 0x3);
1994                 set_driver_byte(cmd, DRIVER_SENSE);
1995                 set_host_byte(cmd, DID_ABORT);
1996                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1997                 return 1;
1998         }
1999
2000         /* check appl tag */
2001         if (e_app_tag != a_app_tag) {
2002                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2003                     0x10, 0x2);
2004                 set_driver_byte(cmd, DRIVER_SENSE);
2005                 set_host_byte(cmd, DID_ABORT);
2006                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2007                 return 1;
2008         }
2009
2010         return 1;
2011 }
2012
2013 static void
2014 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2015                                   struct req_que *req, uint32_t index)
2016 {
2017         struct qla_hw_data *ha = vha->hw;
2018         srb_t *sp;
2019         uint16_t        comp_status;
2020         uint16_t        scsi_status;
2021         uint16_t thread_id;
2022         uint32_t rval = EXT_STATUS_OK;
2023         struct bsg_job *bsg_job = NULL;
2024         struct fc_bsg_request *bsg_request;
2025         struct fc_bsg_reply *bsg_reply;
2026         sts_entry_t *sts;
2027         struct sts_entry_24xx *sts24;
2028         sts = (sts_entry_t *) pkt;
2029         sts24 = (struct sts_entry_24xx *) pkt;
2030
2031         /* Validate handle. */
2032         if (index >= req->num_outstanding_cmds) {
2033                 ql_log(ql_log_warn, vha, 0x70af,
2034                     "Invalid SCSI completion handle 0x%x.\n", index);
2035                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2036                 return;
2037         }
2038
2039         sp = req->outstanding_cmds[index];
2040         if (!sp) {
2041                 ql_log(ql_log_warn, vha, 0x70b0,
2042                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2043                     req->id, index);
2044
2045                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2046                 return;
2047         }
2048
2049         /* Free outstanding command slot. */
2050         req->outstanding_cmds[index] = NULL;
2051         bsg_job = sp->u.bsg_job;
2052         bsg_request = bsg_job->request;
2053         bsg_reply = bsg_job->reply;
2054
2055         if (IS_FWI2_CAPABLE(ha)) {
2056                 comp_status = le16_to_cpu(sts24->comp_status);
2057                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2058         } else {
2059                 comp_status = le16_to_cpu(sts->comp_status);
2060                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2061         }
2062
2063         thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2064         switch (comp_status) {
2065         case CS_COMPLETE:
2066                 if (scsi_status == 0) {
2067                         bsg_reply->reply_payload_rcv_len =
2068                                         bsg_job->reply_payload.payload_len;
2069                         vha->qla_stats.input_bytes +=
2070                                 bsg_reply->reply_payload_rcv_len;
2071                         vha->qla_stats.input_requests++;
2072                         rval = EXT_STATUS_OK;
2073                 }
2074                 goto done;
2075
2076         case CS_DATA_OVERRUN:
2077                 ql_dbg(ql_dbg_user, vha, 0x70b1,
2078                     "Command completed with date overrun thread_id=%d\n",
2079                     thread_id);
2080                 rval = EXT_STATUS_DATA_OVERRUN;
2081                 break;
2082
2083         case CS_DATA_UNDERRUN:
2084                 ql_dbg(ql_dbg_user, vha, 0x70b2,
2085                     "Command completed with date underrun thread_id=%d\n",
2086                     thread_id);
2087                 rval = EXT_STATUS_DATA_UNDERRUN;
2088                 break;
2089         case CS_BIDIR_RD_OVERRUN:
2090                 ql_dbg(ql_dbg_user, vha, 0x70b3,
2091                     "Command completed with read data overrun thread_id=%d\n",
2092                     thread_id);
2093                 rval = EXT_STATUS_DATA_OVERRUN;
2094                 break;
2095
2096         case CS_BIDIR_RD_WR_OVERRUN:
2097                 ql_dbg(ql_dbg_user, vha, 0x70b4,
2098                     "Command completed with read and write data overrun "
2099                     "thread_id=%d\n", thread_id);
2100                 rval = EXT_STATUS_DATA_OVERRUN;
2101                 break;
2102
2103         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2104                 ql_dbg(ql_dbg_user, vha, 0x70b5,
2105                     "Command completed with read data over and write data "
2106                     "underrun thread_id=%d\n", thread_id);
2107                 rval = EXT_STATUS_DATA_OVERRUN;
2108                 break;
2109
2110         case CS_BIDIR_RD_UNDERRUN:
2111                 ql_dbg(ql_dbg_user, vha, 0x70b6,
2112                     "Command completed with read data data underrun "
2113                     "thread_id=%d\n", thread_id);
2114                 rval = EXT_STATUS_DATA_UNDERRUN;
2115                 break;
2116
2117         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2118                 ql_dbg(ql_dbg_user, vha, 0x70b7,
2119                     "Command completed with read data under and write data "
2120                     "overrun thread_id=%d\n", thread_id);
2121                 rval = EXT_STATUS_DATA_UNDERRUN;
2122                 break;
2123
2124         case CS_BIDIR_RD_WR_UNDERRUN:
2125                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2126                     "Command completed with read and write data underrun "
2127                     "thread_id=%d\n", thread_id);
2128                 rval = EXT_STATUS_DATA_UNDERRUN;
2129                 break;
2130
2131         case CS_BIDIR_DMA:
2132                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2133                     "Command completed with data DMA error thread_id=%d\n",
2134                     thread_id);
2135                 rval = EXT_STATUS_DMA_ERR;
2136                 break;
2137
2138         case CS_TIMEOUT:
2139                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2140                     "Command completed with timeout thread_id=%d\n",
2141                     thread_id);
2142                 rval = EXT_STATUS_TIMEOUT;
2143                 break;
2144         default:
2145                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2146                     "Command completed with completion status=0x%x "
2147                     "thread_id=%d\n", comp_status, thread_id);
2148                 rval = EXT_STATUS_ERR;
2149                 break;
2150         }
2151         bsg_reply->reply_payload_rcv_len = 0;
2152
2153 done:
2154         /* Return the vendor specific reply to API */
2155         bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2156         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2157         /* Always return DID_OK, bsg will send the vendor specific response
2158          * in this case only */
2159         sp->done(sp, DID_OK << 6);
2160
2161 }
2162
2163 /**
2164  * qla2x00_status_entry() - Process a Status IOCB entry.
2165  * @ha: SCSI driver HA context
2166  * @pkt: Entry pointer
2167  */
2168 static void
2169 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2170 {
2171         srb_t           *sp;
2172         fc_port_t       *fcport;
2173         struct scsi_cmnd *cp;
2174         sts_entry_t *sts;
2175         struct sts_entry_24xx *sts24;
2176         uint16_t        comp_status;
2177         uint16_t        scsi_status;
2178         uint16_t        ox_id;
2179         uint8_t         lscsi_status;
2180         int32_t         resid;
2181         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2182             fw_resid_len;
2183         uint8_t         *rsp_info, *sense_data;
2184         struct qla_hw_data *ha = vha->hw;
2185         uint32_t handle;
2186         uint16_t que;
2187         struct req_que *req;
2188         int logit = 1;
2189         int res = 0;
2190         uint16_t state_flags = 0;
2191         uint16_t retry_delay = 0;
2192         uint8_t no_logout = 0;
2193
2194         sts = (sts_entry_t *) pkt;
2195         sts24 = (struct sts_entry_24xx *) pkt;
2196         if (IS_FWI2_CAPABLE(ha)) {
2197                 comp_status = le16_to_cpu(sts24->comp_status);
2198                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2199                 state_flags = le16_to_cpu(sts24->state_flags);
2200         } else {
2201                 comp_status = le16_to_cpu(sts->comp_status);
2202                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2203         }
2204         handle = (uint32_t) LSW(sts->handle);
2205         que = MSW(sts->handle);
2206         req = ha->req_q_map[que];
2207
2208         /* Check for invalid queue pointer */
2209         if (req == NULL ||
2210             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2211                 ql_dbg(ql_dbg_io, vha, 0x3059,
2212                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2213                     "que=%u.\n", sts->handle, req, que);
2214                 return;
2215         }
2216
2217         /* Validate handle. */
2218         if (handle < req->num_outstanding_cmds) {
2219                 sp = req->outstanding_cmds[handle];
2220                 if (!sp) {
2221                         ql_dbg(ql_dbg_io, vha, 0x3075,
2222                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2223                             __func__, vha->host_no, sts->handle);
2224                         return;
2225                 }
2226         } else {
2227                 ql_dbg(ql_dbg_io, vha, 0x3017,
2228                     "Invalid status handle, out of range (0x%x).\n",
2229                     sts->handle);
2230
2231                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2232                         if (IS_P3P_TYPE(ha))
2233                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2234                         else
2235                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2236                         qla2xxx_wake_dpc(vha);
2237                 }
2238                 return;
2239         }
2240
2241         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2242                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2243                 return;
2244         }
2245
2246         /* Task Management completion. */
2247         if (sp->type == SRB_TM_CMD) {
2248                 qla24xx_tm_iocb_entry(vha, req, pkt);
2249                 return;
2250         }
2251
2252         /* Fast path completion. */
2253         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2254                 qla2x00_process_completed_request(vha, req, handle);
2255
2256                 return;
2257         }
2258
2259         req->outstanding_cmds[handle] = NULL;
2260         cp = GET_CMD_SP(sp);
2261         if (cp == NULL) {
2262                 ql_dbg(ql_dbg_io, vha, 0x3018,
2263                     "Command already returned (0x%x/%p).\n",
2264                     sts->handle, sp);
2265
2266                 return;
2267         }
2268
2269         lscsi_status = scsi_status & STATUS_MASK;
2270
2271         fcport = sp->fcport;
2272
2273         ox_id = 0;
2274         sense_len = par_sense_len = rsp_info_len = resid_len =
2275             fw_resid_len = 0;
2276         if (IS_FWI2_CAPABLE(ha)) {
2277                 if (scsi_status & SS_SENSE_LEN_VALID)
2278                         sense_len = le32_to_cpu(sts24->sense_len);
2279                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2280                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2281                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2282                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2283                 if (comp_status == CS_DATA_UNDERRUN)
2284                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2285                 rsp_info = sts24->data;
2286                 sense_data = sts24->data;
2287                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2288                 ox_id = le16_to_cpu(sts24->ox_id);
2289                 par_sense_len = sizeof(sts24->data);
2290                 /* Valid values of the retry delay timer are 0x1-0xffef */
2291                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2292                         retry_delay = sts24->retry_delay;
2293         } else {
2294                 if (scsi_status & SS_SENSE_LEN_VALID)
2295                         sense_len = le16_to_cpu(sts->req_sense_length);
2296                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2297                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2298                 resid_len = le32_to_cpu(sts->residual_length);
2299                 rsp_info = sts->rsp_info;
2300                 sense_data = sts->req_sense_data;
2301                 par_sense_len = sizeof(sts->req_sense_data);
2302         }
2303
2304         /* Check for any FCP transport errors. */
2305         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2306                 /* Sense data lies beyond any FCP RESPONSE data. */
2307                 if (IS_FWI2_CAPABLE(ha)) {
2308                         sense_data += rsp_info_len;
2309                         par_sense_len -= rsp_info_len;
2310                 }
2311                 if (rsp_info_len > 3 && rsp_info[3]) {
2312                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2313                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2314                             rsp_info_len, rsp_info[3]);
2315
2316                         res = DID_BUS_BUSY << 16;
2317                         goto out;
2318                 }
2319         }
2320
2321         /* Check for overrun. */
2322         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2323             scsi_status & SS_RESIDUAL_OVER)
2324                 comp_status = CS_DATA_OVERRUN;
2325
2326         /*
2327          * Check retry_delay_timer value if we receive a busy or
2328          * queue full.
2329          */
2330         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2331             lscsi_status == SAM_STAT_BUSY)
2332                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2333
2334         /*
2335          * Based on Host and scsi status generate status code for Linux
2336          */
2337         switch (comp_status) {
2338         case CS_COMPLETE:
2339         case CS_QUEUE_FULL:
2340                 if (scsi_status == 0) {
2341                         res = DID_OK << 16;
2342                         break;
2343                 }
2344                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2345                         resid = resid_len;
2346                         scsi_set_resid(cp, resid);
2347
2348                         if (!lscsi_status &&
2349                             ((unsigned)(scsi_bufflen(cp) - resid) <
2350                              cp->underflow)) {
2351                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2352                                     "Mid-layer underflow "
2353                                     "detected (0x%x of 0x%x bytes).\n",
2354                                     resid, scsi_bufflen(cp));
2355
2356                                 res = DID_ERROR << 16;
2357                                 break;
2358                         }
2359                 }
2360                 res = DID_OK << 16 | lscsi_status;
2361
2362                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2363                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2364                             "QUEUE FULL detected.\n");
2365                         break;
2366                 }
2367                 logit = 0;
2368                 if (lscsi_status != SS_CHECK_CONDITION)
2369                         break;
2370
2371                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2372                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2373                         break;
2374
2375                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2376                     rsp, res);
2377                 break;
2378
2379         case CS_DATA_UNDERRUN:
2380                 /* Use F/W calculated residual length. */
2381                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2382                 scsi_set_resid(cp, resid);
2383                 if (scsi_status & SS_RESIDUAL_UNDER) {
2384                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2385                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2386                                     "Dropped frame(s) detected "
2387                                     "(0x%x of 0x%x bytes).\n",
2388                                     resid, scsi_bufflen(cp));
2389
2390                                 res = DID_ERROR << 16 | lscsi_status;
2391                                 goto check_scsi_status;
2392                         }
2393
2394                         if (!lscsi_status &&
2395                             ((unsigned)(scsi_bufflen(cp) - resid) <
2396                             cp->underflow)) {
2397                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2398                                     "Mid-layer underflow "
2399                                     "detected (0x%x of 0x%x bytes).\n",
2400                                     resid, scsi_bufflen(cp));
2401
2402                                 res = DID_ERROR << 16;
2403                                 break;
2404                         }
2405                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2406                             lscsi_status != SAM_STAT_BUSY) {
2407                         /*
2408                          * scsi status of task set and busy are considered to be
2409                          * task not completed.
2410                          */
2411
2412                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2413                             "Dropped frame(s) detected (0x%x "
2414                             "of 0x%x bytes).\n", resid,
2415                             scsi_bufflen(cp));
2416
2417                         res = DID_ERROR << 16 | lscsi_status;
2418                         goto check_scsi_status;
2419                 } else {
2420                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2421                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2422                             scsi_status, lscsi_status);
2423                 }
2424
2425                 res = DID_OK << 16 | lscsi_status;
2426                 logit = 0;
2427
2428 check_scsi_status:
2429                 /*
2430                  * Check to see if SCSI Status is non zero. If so report SCSI
2431                  * Status.
2432                  */
2433                 if (lscsi_status != 0) {
2434                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2435                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2436                                     "QUEUE FULL detected.\n");
2437                                 logit = 1;
2438                                 break;
2439                         }
2440                         if (lscsi_status != SS_CHECK_CONDITION)
2441                                 break;
2442
2443                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2444                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2445                                 break;
2446
2447                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2448                             sense_len, rsp, res);
2449                 }
2450                 break;
2451
2452         case CS_PORT_LOGGED_OUT:
2453                 no_logout = 1;
2454         case CS_PORT_CONFIG_CHG:
2455         case CS_PORT_BUSY:
2456         case CS_INCOMPLETE:
2457         case CS_PORT_UNAVAILABLE:
2458         case CS_TIMEOUT:
2459         case CS_RESET:
2460
2461                 /*
2462                  * We are going to have the fc class block the rport
2463                  * while we try to recover so instruct the mid layer
2464                  * to requeue until the class decides how to handle this.
2465                  */
2466                 res = DID_TRANSPORT_DISRUPTED << 16;
2467
2468                 if (comp_status == CS_TIMEOUT) {
2469                         if (IS_FWI2_CAPABLE(ha))
2470                                 break;
2471                         else if ((le16_to_cpu(sts->status_flags) &
2472                             SF_LOGOUT_SENT) == 0)
2473                                 break;
2474                 }
2475
2476                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2477                         ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2478                                 "Port to be marked lost on fcport=%02x%02x%02x, current "
2479                                 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2480                                 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2481                                 port_state_str[atomic_read(&fcport->state)],
2482                                 comp_status);
2483
2484                         if (no_logout)
2485                                 fcport->logout_on_delete = 0;
2486
2487                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2488                         qlt_schedule_sess_for_deletion_lock(fcport);
2489                 }
2490
2491                 break;
2492
2493         case CS_ABORTED:
2494                 res = DID_RESET << 16;
2495                 break;
2496
2497         case CS_DIF_ERROR:
2498                 logit = qla2x00_handle_dif_error(sp, sts24);
2499                 res = cp->result;
2500                 break;
2501
2502         case CS_TRANSPORT:
2503                 res = DID_ERROR << 16;
2504
2505                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2506                         break;
2507
2508                 if (state_flags & BIT_4)
2509                         scmd_printk(KERN_WARNING, cp,
2510                             "Unsupported device '%s' found.\n",
2511                             cp->device->vendor);
2512                 break;
2513
2514         default:
2515                 res = DID_ERROR << 16;
2516                 break;
2517         }
2518
2519 out:
2520         if (logit)
2521                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2522                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2523                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2524                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2525                     comp_status, scsi_status, res, vha->host_no,
2526                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2527                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2528                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2529                     resid_len, fw_resid_len, sp, cp);
2530
2531         if (rsp->status_srb == NULL)
2532                 sp->done(sp, res);
2533 }
2534
2535 /**
2536  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2537  * @ha: SCSI driver HA context
2538  * @pkt: Entry pointer
2539  *
2540  * Extended sense data.
2541  */
2542 static void
2543 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2544 {
2545         uint8_t sense_sz = 0;
2546         struct qla_hw_data *ha = rsp->hw;
2547         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2548         srb_t *sp = rsp->status_srb;
2549         struct scsi_cmnd *cp;
2550         uint32_t sense_len;
2551         uint8_t *sense_ptr;
2552
2553         if (!sp || !GET_CMD_SENSE_LEN(sp))
2554                 return;
2555
2556         sense_len = GET_CMD_SENSE_LEN(sp);
2557         sense_ptr = GET_CMD_SENSE_PTR(sp);
2558
2559         cp = GET_CMD_SP(sp);
2560         if (cp == NULL) {
2561                 ql_log(ql_log_warn, vha, 0x3025,
2562                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2563
2564                 rsp->status_srb = NULL;
2565                 return;
2566         }
2567
2568         if (sense_len > sizeof(pkt->data))
2569                 sense_sz = sizeof(pkt->data);
2570         else
2571                 sense_sz = sense_len;
2572
2573         /* Move sense data. */
2574         if (IS_FWI2_CAPABLE(ha))
2575                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2576         memcpy(sense_ptr, pkt->data, sense_sz);
2577         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2578                 sense_ptr, sense_sz);
2579
2580         sense_len -= sense_sz;
2581         sense_ptr += sense_sz;
2582
2583         SET_CMD_SENSE_PTR(sp, sense_ptr);
2584         SET_CMD_SENSE_LEN(sp, sense_len);
2585
2586         /* Place command on done queue. */
2587         if (sense_len == 0) {
2588                 rsp->status_srb = NULL;
2589                 sp->done(sp, cp->result);
2590         }
2591 }
2592
2593 /**
2594  * qla2x00_error_entry() - Process an error entry.
2595  * @ha: SCSI driver HA context
2596  * @pkt: Entry pointer
2597  */
2598 static void
2599 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2600 {
2601         srb_t *sp;
2602         struct qla_hw_data *ha = vha->hw;
2603         const char func[] = "ERROR-IOCB";
2604         uint16_t que = MSW(pkt->handle);
2605         struct req_que *req = NULL;
2606         int res = DID_ERROR << 16;
2607
2608         ql_dbg(ql_dbg_async, vha, 0x502a,
2609             "type of error status in response: 0x%x\n", pkt->entry_status);
2610
2611         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2612                 goto fatal;
2613
2614         req = ha->req_q_map[que];
2615
2616         if (pkt->entry_status & RF_BUSY)
2617                 res = DID_BUS_BUSY << 16;
2618
2619         if (pkt->entry_type == NOTIFY_ACK_TYPE &&
2620             pkt->handle == QLA_TGT_SKIP_HANDLE)
2621                 return;
2622
2623         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2624         if (sp) {
2625                 sp->done(sp, res);
2626                 return;
2627         }
2628 fatal:
2629         ql_log(ql_log_warn, vha, 0x5030,
2630             "Error entry - invalid handle/queue (%04x).\n", que);
2631 }
2632
2633 /**
2634  * qla24xx_mbx_completion() - Process mailbox command completions.
2635  * @ha: SCSI driver HA context
2636  * @mb0: Mailbox0 register
2637  */
2638 static void
2639 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2640 {
2641         uint16_t        cnt;
2642         uint32_t        mboxes;
2643         uint16_t __iomem *wptr;
2644         struct qla_hw_data *ha = vha->hw;
2645         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2646
2647         /* Read all mbox registers? */
2648         mboxes = (1 << ha->mbx_count) - 1;
2649         if (!ha->mcp)
2650                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2651         else
2652                 mboxes = ha->mcp->in_mb;
2653
2654         /* Load return mailbox registers. */
2655         ha->flags.mbox_int = 1;
2656         ha->mailbox_out[0] = mb0;
2657         mboxes >>= 1;
2658         wptr = (uint16_t __iomem *)&reg->mailbox1;
2659
2660         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2661                 if (mboxes & BIT_0)
2662                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2663
2664                 mboxes >>= 1;
2665                 wptr++;
2666         }
2667 }
2668
2669 static void
2670 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2671         struct abort_entry_24xx *pkt)
2672 {
2673         const char func[] = "ABT_IOCB";
2674         srb_t *sp;
2675         struct srb_iocb *abt;
2676
2677         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2678         if (!sp)
2679                 return;
2680
2681         abt = &sp->u.iocb_cmd;
2682         abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2683         sp->done(sp, 0);
2684 }
2685
2686 /**
2687  * qla24xx_process_response_queue() - Process response queue entries.
2688  * @ha: SCSI driver HA context
2689  */
2690 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2691         struct rsp_que *rsp)
2692 {
2693         struct sts_entry_24xx *pkt;
2694         struct qla_hw_data *ha = vha->hw;
2695
2696         if (!vha->flags.online)
2697                 return;
2698
2699         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2700                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2701
2702                 rsp->ring_index++;
2703                 if (rsp->ring_index == rsp->length) {
2704                         rsp->ring_index = 0;
2705                         rsp->ring_ptr = rsp->ring;
2706                 } else {
2707                         rsp->ring_ptr++;
2708                 }
2709
2710                 if (pkt->entry_status != 0) {
2711                         qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2712
2713                         if (qlt_24xx_process_response_error(vha, pkt))
2714                                 goto process_err;
2715
2716                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2717                         wmb();
2718                         continue;
2719                 }
2720 process_err:
2721
2722                 switch (pkt->entry_type) {
2723                 case STATUS_TYPE:
2724                         qla2x00_status_entry(vha, rsp, pkt);
2725                         break;
2726                 case STATUS_CONT_TYPE:
2727                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2728                         break;
2729                 case VP_RPT_ID_IOCB_TYPE:
2730                         qla24xx_report_id_acquisition(vha,
2731                             (struct vp_rpt_id_entry_24xx *)pkt);
2732                         break;
2733                 case LOGINOUT_PORT_IOCB_TYPE:
2734                         qla24xx_logio_entry(vha, rsp->req,
2735                             (struct logio_entry_24xx *)pkt);
2736                         break;
2737                 case CT_IOCB_TYPE:
2738                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2739                         break;
2740                 case ELS_IOCB_TYPE:
2741                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2742                         break;
2743                 case ABTS_RECV_24XX:
2744                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2745                                 /* ensure that the ATIO queue is empty */
2746                                 qlt_handle_abts_recv(vha, (response_t *)pkt);
2747                                 break;
2748                         } else {
2749                                 /* drop through */
2750                                 qlt_24xx_process_atio_queue(vha, 1);
2751                         }
2752                 case ABTS_RESP_24XX:
2753                 case CTIO_TYPE7:
2754                 case CTIO_CRC2:
2755                         qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2756                         break;
2757                 case NOTIFY_ACK_TYPE:
2758                         if (pkt->handle == QLA_TGT_SKIP_HANDLE)
2759                                 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2760                         else
2761                                 qla24xxx_nack_iocb_entry(vha, rsp->req,
2762                                         (struct nack_to_isp *)pkt);
2763                         break;
2764                 case MARKER_TYPE:
2765                         /* Do nothing in this case, this check is to prevent it
2766                          * from falling into default case
2767                          */
2768                         break;
2769                 case ABORT_IOCB_TYPE:
2770                         qla24xx_abort_iocb_entry(vha, rsp->req,
2771                             (struct abort_entry_24xx *)pkt);
2772                         break;
2773                 case MBX_IOCB_TYPE:
2774                         qla24xx_mbx_iocb_entry(vha, rsp->req,
2775                             (struct mbx_24xx_entry *)pkt);
2776                         break;
2777                 default:
2778                         /* Type Not Supported. */
2779                         ql_dbg(ql_dbg_async, vha, 0x5042,
2780                             "Received unknown response pkt type %x "
2781                             "entry status=%x.\n",
2782                             pkt->entry_type, pkt->entry_status);
2783                         break;
2784                 }
2785                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2786                 wmb();
2787         }
2788
2789         /* Adjust ring index */
2790         if (IS_P3P_TYPE(ha)) {
2791                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2792                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2793         } else {
2794                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2795         }
2796 }
2797
2798 static void
2799 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2800 {
2801         int rval;
2802         uint32_t cnt;
2803         struct qla_hw_data *ha = vha->hw;
2804         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2805
2806         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2807             !IS_QLA27XX(ha))
2808                 return;
2809
2810         rval = QLA_SUCCESS;
2811         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2812         RD_REG_DWORD(&reg->iobase_addr);
2813         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2814         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2815             rval == QLA_SUCCESS; cnt--) {
2816                 if (cnt) {
2817                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2818                         udelay(10);
2819                 } else
2820                         rval = QLA_FUNCTION_TIMEOUT;
2821         }
2822         if (rval == QLA_SUCCESS)
2823                 goto next_test;
2824
2825         rval = QLA_SUCCESS;
2826         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2827         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2828             rval == QLA_SUCCESS; cnt--) {
2829                 if (cnt) {
2830                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2831                         udelay(10);
2832                 } else
2833                         rval = QLA_FUNCTION_TIMEOUT;
2834         }
2835         if (rval != QLA_SUCCESS)
2836                 goto done;
2837
2838 next_test:
2839         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2840                 ql_log(ql_log_info, vha, 0x504c,
2841                     "Additional code -- 0x55AA.\n");
2842
2843 done:
2844         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2845         RD_REG_DWORD(&reg->iobase_window);
2846 }
2847
2848 /**
2849  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2850  * @irq:
2851  * @dev_id: SCSI driver HA context
2852  *
2853  * Called by system whenever the host adapter generates an interrupt.
2854  *
2855  * Returns handled flag.
2856  */
2857 irqreturn_t
2858 qla24xx_intr_handler(int irq, void *dev_id)
2859 {
2860         scsi_qla_host_t *vha;
2861         struct qla_hw_data *ha;
2862         struct device_reg_24xx __iomem *reg;
2863         int             status;
2864         unsigned long   iter;
2865         uint32_t        stat;
2866         uint32_t        hccr;
2867         uint16_t        mb[8];
2868         struct rsp_que *rsp;
2869         unsigned long   flags;
2870
2871         rsp = (struct rsp_que *) dev_id;
2872         if (!rsp) {
2873                 ql_log(ql_log_info, NULL, 0x5059,
2874                     "%s: NULL response queue pointer.\n", __func__);
2875                 return IRQ_NONE;
2876         }
2877
2878         ha = rsp->hw;
2879         reg = &ha->iobase->isp24;
2880         status = 0;
2881
2882         if (unlikely(pci_channel_offline(ha->pdev)))
2883                 return IRQ_HANDLED;
2884
2885         spin_lock_irqsave(&ha->hardware_lock, flags);
2886         vha = pci_get_drvdata(ha->pdev);
2887         for (iter = 50; iter--; ) {
2888                 stat = RD_REG_DWORD(&reg->host_status);
2889                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2890                         break;
2891                 if (stat & HSRX_RISC_PAUSED) {
2892                         if (unlikely(pci_channel_offline(ha->pdev)))
2893                                 break;
2894
2895                         hccr = RD_REG_DWORD(&reg->hccr);
2896
2897                         ql_log(ql_log_warn, vha, 0x504b,
2898                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2899                             hccr);
2900
2901                         qla2xxx_check_risc_status(vha);
2902
2903                         ha->isp_ops->fw_dump(vha, 1);
2904                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2905                         break;
2906                 } else if ((stat & HSRX_RISC_INT) == 0)
2907                         break;
2908
2909                 switch (stat & 0xff) {
2910                 case INTR_ROM_MB_SUCCESS:
2911                 case INTR_ROM_MB_FAILED:
2912                 case INTR_MB_SUCCESS:
2913                 case INTR_MB_FAILED:
2914                         qla24xx_mbx_completion(vha, MSW(stat));
2915                         status |= MBX_INTERRUPT;
2916
2917                         break;
2918                 case INTR_ASYNC_EVENT:
2919                         mb[0] = MSW(stat);
2920                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2921                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2922                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2923                         qla2x00_async_event(vha, rsp, mb);
2924                         break;
2925                 case INTR_RSP_QUE_UPDATE:
2926                 case INTR_RSP_QUE_UPDATE_83XX:
2927                         qla24xx_process_response_queue(vha, rsp);
2928                         break;
2929                 case INTR_ATIO_QUE_UPDATE:{
2930                         unsigned long flags2;
2931                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2932                         qlt_24xx_process_atio_queue(vha, 1);
2933                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2934                         break;
2935                 }
2936                 case INTR_ATIO_RSP_QUE_UPDATE: {
2937                         unsigned long flags2;
2938                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2939                         qlt_24xx_process_atio_queue(vha, 1);
2940                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2941
2942                         qla24xx_process_response_queue(vha, rsp);
2943                         break;
2944                 }
2945                 default:
2946                         ql_dbg(ql_dbg_async, vha, 0x504f,
2947                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
2948                         break;
2949                 }
2950                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2951                 RD_REG_DWORD_RELAXED(&reg->hccr);
2952                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2953                         ndelay(3500);
2954         }
2955         qla2x00_handle_mbx_completion(ha, status);
2956         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2957
2958         return IRQ_HANDLED;
2959 }
2960
2961 static irqreturn_t
2962 qla24xx_msix_rsp_q(int irq, void *dev_id)
2963 {
2964         struct qla_hw_data *ha;
2965         struct rsp_que *rsp;
2966         struct device_reg_24xx __iomem *reg;
2967         struct scsi_qla_host *vha;
2968         unsigned long flags;
2969         uint32_t stat = 0;
2970
2971         rsp = (struct rsp_que *) dev_id;
2972         if (!rsp) {
2973                 ql_log(ql_log_info, NULL, 0x505a,
2974                     "%s: NULL response queue pointer.\n", __func__);
2975                 return IRQ_NONE;
2976         }
2977         ha = rsp->hw;
2978         reg = &ha->iobase->isp24;
2979
2980         spin_lock_irqsave(&ha->hardware_lock, flags);
2981
2982         vha = pci_get_drvdata(ha->pdev);
2983         /*
2984          * Use host_status register to check to PCI disconnection before we
2985          * we process the response queue.
2986          */
2987         stat = RD_REG_DWORD(&reg->host_status);
2988         if (qla2x00_check_reg32_for_disconnect(vha, stat))
2989                 goto out;
2990         qla24xx_process_response_queue(vha, rsp);
2991         if (!ha->flags.disable_msix_handshake) {
2992                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2993                 RD_REG_DWORD_RELAXED(&reg->hccr);
2994         }
2995 out:
2996         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2997
2998         return IRQ_HANDLED;
2999 }
3000
3001 static irqreturn_t
3002 qla24xx_msix_default(int irq, void *dev_id)
3003 {
3004         scsi_qla_host_t *vha;
3005         struct qla_hw_data *ha;
3006         struct rsp_que *rsp;
3007         struct device_reg_24xx __iomem *reg;
3008         int             status;
3009         uint32_t        stat;
3010         uint32_t        hccr;
3011         uint16_t        mb[8];
3012         unsigned long flags;
3013
3014         rsp = (struct rsp_que *) dev_id;
3015         if (!rsp) {
3016                 ql_log(ql_log_info, NULL, 0x505c,
3017                     "%s: NULL response queue pointer.\n", __func__);
3018                 return IRQ_NONE;
3019         }
3020         ha = rsp->hw;
3021         reg = &ha->iobase->isp24;
3022         status = 0;
3023
3024         spin_lock_irqsave(&ha->hardware_lock, flags);
3025         vha = pci_get_drvdata(ha->pdev);
3026         do {
3027                 stat = RD_REG_DWORD(&reg->host_status);
3028                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3029                         break;
3030                 if (stat & HSRX_RISC_PAUSED) {
3031                         if (unlikely(pci_channel_offline(ha->pdev)))
3032                                 break;
3033
3034                         hccr = RD_REG_DWORD(&reg->hccr);
3035
3036                         ql_log(ql_log_info, vha, 0x5050,
3037                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
3038                             hccr);
3039
3040                         qla2xxx_check_risc_status(vha);
3041
3042                         ha->isp_ops->fw_dump(vha, 1);
3043                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3044                         break;
3045                 } else if ((stat & HSRX_RISC_INT) == 0)
3046                         break;
3047
3048                 switch (stat & 0xff) {
3049                 case INTR_ROM_MB_SUCCESS:
3050                 case INTR_ROM_MB_FAILED:
3051                 case INTR_MB_SUCCESS:
3052                 case INTR_MB_FAILED:
3053                         qla24xx_mbx_completion(vha, MSW(stat));
3054                         status |= MBX_INTERRUPT;
3055
3056                         break;
3057                 case INTR_ASYNC_EVENT:
3058                         mb[0] = MSW(stat);
3059                         mb[1] = RD_REG_WORD(&reg->mailbox1);
3060                         mb[2] = RD_REG_WORD(&reg->mailbox2);
3061                         mb[3] = RD_REG_WORD(&reg->mailbox3);
3062                         qla2x00_async_event(vha, rsp, mb);
3063                         break;
3064                 case INTR_RSP_QUE_UPDATE:
3065                 case INTR_RSP_QUE_UPDATE_83XX:
3066                         qla24xx_process_response_queue(vha, rsp);
3067                         break;
3068                 case INTR_ATIO_QUE_UPDATE:{
3069                         unsigned long flags2;
3070                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3071                         qlt_24xx_process_atio_queue(vha, 1);
3072                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3073                         break;
3074                 }
3075                 case INTR_ATIO_RSP_QUE_UPDATE: {
3076                         unsigned long flags2;
3077                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3078                         qlt_24xx_process_atio_queue(vha, 1);
3079                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3080
3081                         qla24xx_process_response_queue(vha, rsp);
3082                         break;
3083                 }
3084                 default:
3085                         ql_dbg(ql_dbg_async, vha, 0x5051,
3086                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
3087                         break;
3088                 }
3089                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3090         } while (0);
3091         qla2x00_handle_mbx_completion(ha, status);
3092         spin_unlock_irqrestore(&ha->hardware_lock, flags);
3093
3094         return IRQ_HANDLED;
3095 }
3096
3097 irqreturn_t
3098 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3099 {
3100         struct qla_hw_data *ha;
3101         struct qla_qpair *qpair;
3102         struct device_reg_24xx __iomem *reg;
3103         unsigned long flags;
3104
3105         qpair = dev_id;
3106         if (!qpair) {
3107                 ql_log(ql_log_info, NULL, 0x505b,
3108                     "%s: NULL response queue pointer.\n", __func__);
3109                 return IRQ_NONE;
3110         }
3111         ha = qpair->hw;
3112
3113         /* Clear the interrupt, if enabled, for this response queue */
3114         if (unlikely(!ha->flags.disable_msix_handshake)) {
3115                 reg = &ha->iobase->isp24;
3116                 spin_lock_irqsave(&ha->hardware_lock, flags);
3117                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3118                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3119         }
3120
3121         queue_work(ha->wq, &qpair->q_work);
3122
3123         return IRQ_HANDLED;
3124 }
3125
3126 /* Interrupt handling helpers. */
3127
3128 struct qla_init_msix_entry {
3129         const char *name;
3130         irq_handler_t handler;
3131 };
3132
3133 static const struct qla_init_msix_entry msix_entries[] = {
3134         { "qla2xxx (default)", qla24xx_msix_default },
3135         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3136         { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3137         { "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q },
3138 };
3139
3140 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3141         { "qla2xxx (default)", qla82xx_msix_default },
3142         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3143 };
3144
3145 static int
3146 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3147 {
3148         int i, ret;
3149         struct qla_msix_entry *qentry;
3150         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3151         struct irq_affinity desc = {
3152                 .pre_vectors = QLA_BASE_VECTORS,
3153         };
3154
3155         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha))
3156                 desc.pre_vectors++;
3157
3158         ret = pci_alloc_irq_vectors_affinity(ha->pdev, QLA_BASE_VECTORS,
3159                         ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3160                         &desc);
3161
3162         if (ret < 0) {
3163                 ql_log(ql_log_fatal, vha, 0x00c7,
3164                     "MSI-X: Failed to enable support, "
3165                     "giving   up -- %d/%d.\n",
3166                     ha->msix_count, ret);
3167                 goto msix_out;
3168         } else if (ret < ha->msix_count) {
3169                 ql_log(ql_log_warn, vha, 0x00c6,
3170                     "MSI-X: Failed to enable support "
3171                      "with %d vectors, using %d vectors.\n",
3172                     ha->msix_count, ret);
3173                 ha->msix_count = ret;
3174                 /* Recalculate queue values */
3175                 if (ha->mqiobase && ql2xmqsupport) {
3176                         ha->max_req_queues = ha->msix_count - 1;
3177
3178                         /* ATIOQ needs 1 vector. That's 1 less QPair */
3179                         if (QLA_TGT_MODE_ENABLED())
3180                                 ha->max_req_queues--;
3181
3182                         ha->max_rsp_queues = ha->max_req_queues;
3183
3184                         ha->max_qpairs = ha->max_req_queues - 1;
3185                         ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3186                             "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3187                 }
3188         }
3189         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3190                                 ha->msix_count, GFP_KERNEL);
3191         if (!ha->msix_entries) {
3192                 ql_log(ql_log_fatal, vha, 0x00c8,
3193                     "Failed to allocate memory for ha->msix_entries.\n");
3194                 ret = -ENOMEM;
3195                 goto msix_out;
3196         }
3197         ha->flags.msix_enabled = 1;
3198
3199         for (i = 0; i < ha->msix_count; i++) {
3200                 qentry = &ha->msix_entries[i];
3201                 qentry->vector = pci_irq_vector(ha->pdev, i);
3202                 qentry->entry = i;
3203                 qentry->have_irq = 0;
3204                 qentry->in_use = 0;
3205                 qentry->handle = NULL;
3206         }
3207
3208         /* Enable MSI-X vectors for the base queue */
3209         for (i = 0; i < QLA_BASE_VECTORS; i++) {
3210                 qentry = &ha->msix_entries[i];
3211                 qentry->handle = rsp;
3212                 rsp->msix = qentry;
3213                 scnprintf(qentry->name, sizeof(qentry->name),
3214                     "%s", msix_entries[i].name);
3215                 if (IS_P3P_TYPE(ha))
3216                         ret = request_irq(qentry->vector,
3217                                 qla82xx_msix_entries[i].handler,
3218                                 0, qla82xx_msix_entries[i].name, rsp);
3219                 else
3220                         ret = request_irq(qentry->vector,
3221                                 msix_entries[i].handler,
3222                                 0, msix_entries[i].name, rsp);
3223                 if (ret)
3224                         goto msix_register_fail;
3225                 qentry->have_irq = 1;
3226                 qentry->in_use = 1;
3227         }
3228
3229         /*
3230          * If target mode is enable, also request the vector for the ATIO
3231          * queue.
3232          */
3233         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3234                 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3235                 rsp->msix = qentry;
3236                 qentry->handle = rsp;
3237                 scnprintf(qentry->name, sizeof(qentry->name),
3238                     "%s", msix_entries[QLA_ATIO_VECTOR].name);
3239                 qentry->in_use = 1;
3240                 ret = request_irq(qentry->vector,
3241                         msix_entries[QLA_ATIO_VECTOR].handler,
3242                         0, msix_entries[QLA_ATIO_VECTOR].name, rsp);
3243                 qentry->have_irq = 1;
3244         }
3245
3246 msix_register_fail:
3247         if (ret) {
3248                 ql_log(ql_log_fatal, vha, 0x00cb,
3249                     "MSI-X: unable to register handler -- %x/%d.\n",
3250                     qentry->vector, ret);
3251                 qla2x00_free_irqs(vha);
3252                 ha->mqenable = 0;
3253                 goto msix_out;
3254         }
3255
3256         /* Enable MSI-X vector for response queue update for queue 0 */
3257         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3258                 if (ha->msixbase && ha->mqiobase &&
3259                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3260                      ql2xmqsupport))
3261                         ha->mqenable = 1;
3262         } else
3263                 if (ha->mqiobase &&
3264                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3265                      ql2xmqsupport))
3266                         ha->mqenable = 1;
3267         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3268             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3269             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3270         ql_dbg(ql_dbg_init, vha, 0x0055,
3271             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3272             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3273
3274 msix_out:
3275         return ret;
3276 }
3277
3278 int
3279 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3280 {
3281         int ret = QLA_FUNCTION_FAILED;
3282         device_reg_t *reg = ha->iobase;
3283         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3284
3285         /* If possible, enable MSI-X. */
3286         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3287             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3288             !IS_QLA27XX(ha))
3289                 goto skip_msi;
3290
3291         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3292                 (ha->pdev->subsystem_device == 0x7040 ||
3293                 ha->pdev->subsystem_device == 0x7041 ||
3294                 ha->pdev->subsystem_device == 0x1705)) {
3295                 ql_log(ql_log_warn, vha, 0x0034,
3296                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3297                         ha->pdev->subsystem_vendor,
3298                         ha->pdev->subsystem_device);
3299                 goto skip_msi;
3300         }
3301
3302         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3303                 ql_log(ql_log_warn, vha, 0x0035,
3304                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3305                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3306                 goto skip_msix;
3307         }
3308
3309         ret = qla24xx_enable_msix(ha, rsp);
3310         if (!ret) {
3311                 ql_dbg(ql_dbg_init, vha, 0x0036,
3312                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3313                     ha->chip_revision, ha->fw_attributes);
3314                 goto clear_risc_ints;
3315         }
3316
3317 skip_msix:
3318
3319         ql_log(ql_log_info, vha, 0x0037,
3320             "Falling back-to MSI mode -%d.\n", ret);
3321
3322         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3323             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3324             !IS_QLA27XX(ha))
3325                 goto skip_msi;
3326
3327         ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3328         if (!ret) {
3329                 ql_dbg(ql_dbg_init, vha, 0x0038,
3330                     "MSI: Enabled.\n");
3331                 ha->flags.msi_enabled = 1;
3332         } else
3333                 ql_log(ql_log_warn, vha, 0x0039,
3334                     "Falling back-to INTa mode -- %d.\n", ret);
3335 skip_msi:
3336
3337         /* Skip INTx on ISP82xx. */
3338         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3339                 return QLA_FUNCTION_FAILED;
3340
3341         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3342             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3343             QLA2XXX_DRIVER_NAME, rsp);
3344         if (ret) {
3345                 ql_log(ql_log_warn, vha, 0x003a,
3346                     "Failed to reserve interrupt %d already in use.\n",
3347                     ha->pdev->irq);
3348                 goto fail;
3349         } else if (!ha->flags.msi_enabled) {
3350                 ql_dbg(ql_dbg_init, vha, 0x0125,
3351                     "INTa mode: Enabled.\n");
3352                 ha->flags.mr_intr_valid = 1;
3353         }
3354
3355 clear_risc_ints:
3356         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3357                 goto fail;
3358
3359         spin_lock_irq(&ha->hardware_lock);
3360         WRT_REG_WORD(&reg->isp.semaphore, 0);
3361         spin_unlock_irq(&ha->hardware_lock);
3362
3363 fail:
3364         return ret;
3365 }
3366
3367 void
3368 qla2x00_free_irqs(scsi_qla_host_t *vha)
3369 {
3370         struct qla_hw_data *ha = vha->hw;
3371         struct rsp_que *rsp;
3372         struct qla_msix_entry *qentry;
3373         int i;
3374
3375         /*
3376          * We need to check that ha->rsp_q_map is valid in case we are called
3377          * from a probe failure context.
3378          */
3379         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3380                 goto free_irqs;
3381         rsp = ha->rsp_q_map[0];
3382
3383         if (ha->flags.msix_enabled) {
3384                 for (i = 0; i < ha->msix_count; i++) {
3385                         qentry = &ha->msix_entries[i];
3386                         if (qentry->have_irq) {
3387                                 irq_set_affinity_notifier(qentry->vector, NULL);
3388                                 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3389                         }
3390                 }
3391                 kfree(ha->msix_entries);
3392                 ha->msix_entries = NULL;
3393                 ha->flags.msix_enabled = 0;
3394                 ql_dbg(ql_dbg_init, vha, 0x0042,
3395                         "Disabled MSI-X.\n");
3396         } else {
3397                 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3398         }
3399
3400 free_irqs:
3401         pci_free_irq_vectors(ha->pdev);
3402 }
3403
3404 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3405         struct qla_msix_entry *msix, int vector_type)
3406 {
3407         const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3408         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3409         int ret;
3410
3411         scnprintf(msix->name, sizeof(msix->name),
3412             "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3413         ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3414         if (ret) {
3415                 ql_log(ql_log_fatal, vha, 0x00e6,
3416                     "MSI-X: Unable to register handler -- %x/%d.\n",
3417                     msix->vector, ret);
3418                 return ret;
3419         }
3420         msix->have_irq = 1;
3421         msix->handle = qpair;
3422         return ret;
3423 }