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 <scsi/scsi_tcq.h>
  13 #include <scsi/scsi_bsg_fc.h>
  14 #include <scsi/scsi_eh.h>
  15
  16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
  17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
  18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
  19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
  20         sts_entry_t *);
  21 static void qla_irq_affinity_notify(struct irq_affinity_notify *,
  22     const cpumask_t *);
  23 static void qla_irq_affinity_release(struct kref *);
  24
  25
  26 /**
  27  * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
  28  * @irq:
  29  * @dev_id: SCSI driver HA context
  30  *
  31  * Called by system whenever the host adapter generates an interrupt.
  32  *
  33  * Returns handled flag.
  34  */
  35 irqreturn_t
  36 qla2100_intr_handler(int irq, void *dev_id)
  37 {
  38         scsi_qla_host_t *vha;
  39         struct qla_hw_data *ha;
  40         struct device_reg_2xxx __iomem *reg;
  41         int             status;
  42         unsigned long   iter;
  43         uint16_t        hccr;
  44         uint16_t        mb[4];
  45         struct rsp_que *rsp;
  46         unsigned long   flags;
  47
  48         rsp = (struct rsp_que *) dev_id;
  49         if (!rsp) {
  50                 ql_log(ql_log_info, NULL, 0x505d,
  51                     "%s: NULL response queue pointer.\n", __func__);
  52                 return (IRQ_NONE);
  53         }
  54
  55         ha = rsp->hw;
  56         reg = &ha->iobase->isp;
  57         status = 0;
  58
  59         spin_lock_irqsave(&ha->hardware_lock, flags);
  60         vha = pci_get_drvdata(ha->pdev);
  61         for (iter = 50; iter--; ) {
  62                 hccr = RD_REG_WORD(&reg->hccr);
  63                 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
  64                         break;
  65                 if (hccr & HCCR_RISC_PAUSE) {
  66                         if (pci_channel_offline(ha->pdev))
  67                                 break;
  68
  69                         /*
  70                          * Issue a "HARD" reset in order for the RISC interrupt
  71                          * bit to be cleared.  Schedule a big hammer to get
  72                          * out of the RISC PAUSED state.
  73                          */
  74                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
  75                         RD_REG_WORD(&reg->hccr);
  76
  77                         ha->isp_ops->fw_dump(vha, 1);
  78                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
  79                         break;
  80                 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
  81                         break;
  82
  83                 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
  84                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
  85                         RD_REG_WORD(&reg->hccr);
  86
  87                         /* Get mailbox data. */
  88                         mb[0] = RD_MAILBOX_REG(ha, reg, 0);
  89                         if (mb[0] > 0x3fff && mb[0] < 0x8000) {
  90                                 qla2x00_mbx_completion(vha, mb[0]);
  91                                 status |= MBX_INTERRUPT;
  92                         } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
  93                                 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
  94                                 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
  95                                 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
  96                                 qla2x00_async_event(vha, rsp, mb);
  97                         } else {
  98                                 /*EMPTY*/
  99                                 ql_dbg(ql_dbg_async, vha, 0x5025,
 100                                     "Unrecognized interrupt type (%d).\n",
 101                                     mb[0]);
 102                         }
 103                         /* Release mailbox registers. */
 104                         WRT_REG_WORD(&reg->semaphore, 0);
 105                         RD_REG_WORD(&reg->semaphore);
 106                 } else {
 107                         qla2x00_process_response_queue(rsp);
 108
 109                         WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 110                         RD_REG_WORD(&reg->hccr);
 111                 }
 112         }
 113         qla2x00_handle_mbx_completion(ha, status);
 114         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 115
 116         return (IRQ_HANDLED);
 117 }
 118
 119 bool
 120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
 121 {
 122         /* Check for PCI disconnection */
 123         if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
 124                 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
 125                     !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
 126                     !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
 127                         /*
 128                          * Schedule this (only once) on the default system
 129                          * workqueue so that all the adapter workqueues and the
 130                          * DPC thread can be shutdown cleanly.
 131                          */
 132                         schedule_work(&vha->hw->board_disable);
 133                 }
 134                 return true;
 135         } else
 136                 return false;
 137 }
 138
 139 bool
 140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
 141 {
 142         return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
 143 }
 144
 145 /**
 146  * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
 147  * @irq:
 148  * @dev_id: SCSI driver HA context
 149  *
 150  * Called by system whenever the host adapter generates an interrupt.
 151  *
 152  * Returns handled flag.
 153  */
 154 irqreturn_t
 155 qla2300_intr_handler(int irq, void *dev_id)
 156 {
 157         scsi_qla_host_t *vha;
 158         struct device_reg_2xxx __iomem *reg;
 159         int             status;
 160         unsigned long   iter;
 161         uint32_t        stat;
 162         uint16_t        hccr;
 163         uint16_t        mb[4];
 164         struct rsp_que *rsp;
 165         struct qla_hw_data *ha;
 166         unsigned long   flags;
 167
 168         rsp = (struct rsp_que *) dev_id;
 169         if (!rsp) {
 170                 ql_log(ql_log_info, NULL, 0x5058,
 171                     "%s: NULL response queue pointer.\n", __func__);
 172                 return (IRQ_NONE);
 173         }
 174
 175         ha = rsp->hw;
 176         reg = &ha->iobase->isp;
 177         status = 0;
 178
 179         spin_lock_irqsave(&ha->hardware_lock, flags);
 180         vha = pci_get_drvdata(ha->pdev);
 181         for (iter = 50; iter--; ) {
 182                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
 183                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
 184                         break;
 185                 if (stat & HSR_RISC_PAUSED) {
 186                         if (unlikely(pci_channel_offline(ha->pdev)))
 187                                 break;
 188
 189                         hccr = RD_REG_WORD(&reg->hccr);
 190
 191                         if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
 192                                 ql_log(ql_log_warn, vha, 0x5026,
 193                                     "Parity error -- HCCR=%x, Dumping "
 194                                     "firmware.\n", hccr);
 195                         else
 196                                 ql_log(ql_log_warn, vha, 0x5027,
 197                                     "RISC paused -- HCCR=%x, Dumping "
 198                                     "firmware.\n", hccr);
 199
 200                         /*
 201                          * Issue a "HARD" reset in order for the RISC
 202                          * interrupt bit to be cleared.  Schedule a big
 203                          * hammer to get out of the RISC PAUSED state.
 204                          */
 205                         WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
 206                         RD_REG_WORD(&reg->hccr);
 207
 208                         ha->isp_ops->fw_dump(vha, 1);
 209                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 210                         break;
 211                 } else if ((stat & HSR_RISC_INT) == 0)
 212                         break;
 213
 214                 switch (stat & 0xff) {
 215                 case 0x1:
 216                 case 0x2:
 217                 case 0x10:
 218                 case 0x11:
 219                         qla2x00_mbx_completion(vha, MSW(stat));
 220                         status |= MBX_INTERRUPT;
 221
 222                         /* Release mailbox registers. */
 223                         WRT_REG_WORD(&reg->semaphore, 0);
 224                         break;
 225                 case 0x12:
 226                         mb[0] = MSW(stat);
 227                         mb[1] = RD_MAILBOX_REG(ha, reg, 1);
 228                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 229                         mb[3] = RD_MAILBOX_REG(ha, reg, 3);
 230                         qla2x00_async_event(vha, rsp, mb);
 231                         break;
 232                 case 0x13:
 233                         qla2x00_process_response_queue(rsp);
 234                         break;
 235                 case 0x15:
 236                         mb[0] = MBA_CMPLT_1_16BIT;
 237                         mb[1] = MSW(stat);
 238                         qla2x00_async_event(vha, rsp, mb);
 239                         break;
 240                 case 0x16:
 241                         mb[0] = MBA_SCSI_COMPLETION;
 242                         mb[1] = MSW(stat);
 243                         mb[2] = RD_MAILBOX_REG(ha, reg, 2);
 244                         qla2x00_async_event(vha, rsp, mb);
 245                         break;
 246                 default:
 247                         ql_dbg(ql_dbg_async, vha, 0x5028,
 248                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
 249                         break;
 250                 }
 251                 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
 252                 RD_REG_WORD_RELAXED(&reg->hccr);
 253         }
 254         qla2x00_handle_mbx_completion(ha, status);
 255         spin_unlock_irqrestore(&ha->hardware_lock, flags);
 256
 257         return (IRQ_HANDLED);
 258 }
 259
 260 /**
 261  * qla2x00_mbx_completion() - Process mailbox command completions.
 262  * @ha: SCSI driver HA context
 263  * @mb0: Mailbox0 register
 264  */
 265 static void
 266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 267 {
 268         uint16_t        cnt;
 269         uint32_t        mboxes;
 270         uint16_t __iomem *wptr;
 271         struct qla_hw_data *ha = vha->hw;
 272         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 273
 274         /* Read all mbox registers? */
 275         WARN_ON_ONCE(ha->mbx_count > 32);
 276         mboxes = (1ULL << ha->mbx_count) - 1;
 277         if (!ha->mcp)
 278                 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
 279         else
 280                 mboxes = ha->mcp->in_mb;
 281
 282         /* Load return mailbox registers. */
 283         ha->flags.mbox_int = 1;
 284         ha->mailbox_out[0] = mb0;
 285         mboxes >>= 1;
 286         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 287
 288         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 289                 if (IS_QLA2200(ha) && cnt == 8)
 290                         wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
 291                 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 292                         ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
 293                 else if (mboxes & BIT_0)
 294                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 295
 296                 wptr++;
 297                 mboxes >>= 1;
 298         }
 299 }
 300
 301 static void
 302 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 303 {
 304         static char *event[] =
 305                 { "Complete", "Request Notification", "Time Extension" };
 306         int rval;
 307         struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
 308         struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
 309         uint16_t __iomem *wptr;
 310         uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
 311
 312         /* Seed data -- mailbox1 -> mailbox7. */
 313         if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
 314                 wptr = (uint16_t __iomem *)&reg24->mailbox1;
 315         else if (IS_QLA8044(vha->hw))
 316                 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
 317         else
 318                 return;
 319
 320         for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
 321                 mb[cnt] = RD_REG_WORD(wptr);
 322
 323         ql_dbg(ql_dbg_async, vha, 0x5021,
 324             "Inter-Driver Communication %s -- "
 325             "%04x %04x %04x %04x %04x %04x %04x.\n",
 326             event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
 327             mb[4], mb[5], mb[6]);
 328         switch (aen) {
 329         /* Handle IDC Error completion case. */
 330         case MBA_IDC_COMPLETE:
 331                 if (mb[1] >> 15) {
 332                         vha->hw->flags.idc_compl_status = 1;
 333                         if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
 334                                 complete(&vha->hw->dcbx_comp);
 335                 }
 336                 break;
 337
 338         case MBA_IDC_NOTIFY:
 339                 /* Acknowledgement needed? [Notify && non-zero timeout]. */
 340                 timeout = (descr >> 8) & 0xf;
 341                 ql_dbg(ql_dbg_async, vha, 0x5022,
 342                     "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 343                     vha->host_no, event[aen & 0xff], timeout);
 344
 345                 if (!timeout)
 346                         return;
 347                 rval = qla2x00_post_idc_ack_work(vha, mb);
 348                 if (rval != QLA_SUCCESS)
 349                         ql_log(ql_log_warn, vha, 0x5023,
 350                             "IDC failed to post ACK.\n");
 351                 break;
 352         case MBA_IDC_TIME_EXT:
 353                 vha->hw->idc_extend_tmo = descr;
 354                 ql_dbg(ql_dbg_async, vha, 0x5087,
 355                     "%lu Inter-Driver Communication %s -- "
 356                     "Extend timeout by=%d.\n",
 357                     vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
 358                 break;
 359         }
 360 }
 361
 362 #define LS_UNKNOWN      2
 363 const char *
 364 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
 365 {
 366         static const char *const link_speeds[] = {
 367                 "1", "2", "?", "4", "8", "16", "32", "10"
 368         };
 369 #define QLA_LAST_SPEED  7
 370
 371         if (IS_QLA2100(ha) || IS_QLA2200(ha))
 372                 return link_speeds[0];
 373         else if (speed == 0x13)
 374                 return link_speeds[QLA_LAST_SPEED];
 375         else if (speed < QLA_LAST_SPEED)
 376                 return link_speeds[speed];
 377         else
 378                 return link_speeds[LS_UNKNOWN];
 379 }
 380
 381 static void
 382 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
 383 {
 384         struct qla_hw_data *ha = vha->hw;
 385
 386         /*
 387          * 8200 AEN Interpretation:
 388          * mb[0] = AEN code
 389          * mb[1] = AEN Reason code
 390          * mb[2] = LSW of Peg-Halt Status-1 Register
 391          * mb[6] = MSW of Peg-Halt Status-1 Register
 392          * mb[3] = LSW of Peg-Halt Status-2 register
 393          * mb[7] = MSW of Peg-Halt Status-2 register
 394          * mb[4] = IDC Device-State Register value
 395          * mb[5] = IDC Driver-Presence Register value
 396          */
 397         ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
 398             "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
 399             mb[0], mb[1], mb[2], mb[6]);
 400         ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
 401             "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
 402             "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
 403
 404         if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
 405                                 IDC_HEARTBEAT_FAILURE)) {
 406                 ha->flags.nic_core_hung = 1;
 407                 ql_log(ql_log_warn, vha, 0x5060,
 408                     "83XX: F/W Error Reported: Check if reset required.\n");
 409
 410                 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
 411                         uint32_t protocol_engine_id, fw_err_code, err_level;
 412
 413                         /*
 414                          * IDC_PEG_HALT_STATUS_CHANGE interpretation:
 415                          *  - PEG-Halt Status-1 Register:
 416                          *      (LSW = mb[2], MSW = mb[6])
 417                          *      Bits 0-7   = protocol-engine ID
 418                          *      Bits 8-28  = f/w error code
 419                          *      Bits 29-31 = Error-level
 420                          *          Error-level 0x1 = Non-Fatal error
 421                          *          Error-level 0x2 = Recoverable Fatal error
 422                          *          Error-level 0x4 = UnRecoverable Fatal error
 423                          *  - PEG-Halt Status-2 Register:
 424                          *      (LSW = mb[3], MSW = mb[7])
 425                          */
 426                         protocol_engine_id = (mb[2] & 0xff);
 427                         fw_err_code = (((mb[2] & 0xff00) >> 8) |
 428                             ((mb[6] & 0x1fff) << 8));
 429                         err_level = ((mb[6] & 0xe000) >> 13);
 430                         ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
 431                             "Register: protocol_engine_id=0x%x "
 432                             "fw_err_code=0x%x err_level=0x%x.\n",
 433                             protocol_engine_id, fw_err_code, err_level);
 434                         ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
 435                             "Register: 0x%x%x.\n", mb[7], mb[3]);
 436                         if (err_level == ERR_LEVEL_NON_FATAL) {
 437                                 ql_log(ql_log_warn, vha, 0x5063,
 438                                     "Not a fatal error, f/w has recovered "
 439                                     "iteself.\n");
 440                         } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
 441                                 ql_log(ql_log_fatal, vha, 0x5064,
 442                                     "Recoverable Fatal error: Chip reset "
 443                                     "required.\n");
 444                                 qla83xx_schedule_work(vha,
 445                                     QLA83XX_NIC_CORE_RESET);
 446                         } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
 447                                 ql_log(ql_log_fatal, vha, 0x5065,
 448                                     "Unrecoverable Fatal error: Set FAILED "
 449                                     "state, reboot required.\n");
 450                                 qla83xx_schedule_work(vha,
 451                                     QLA83XX_NIC_CORE_UNRECOVERABLE);
 452                         }
 453                 }
 454
 455                 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
 456                         uint16_t peg_fw_state, nw_interface_link_up;
 457                         uint16_t nw_interface_signal_detect, sfp_status;
 458                         uint16_t htbt_counter, htbt_monitor_enable;
 459                         uint16_t sfp_additonal_info, sfp_multirate;
 460                         uint16_t sfp_tx_fault, link_speed, dcbx_status;
 461
 462                         /*
 463                          * IDC_NIC_FW_REPORTED_FAILURE interpretation:
 464                          *  - PEG-to-FC Status Register:
 465                          *      (LSW = mb[2], MSW = mb[6])
 466                          *      Bits 0-7   = Peg-Firmware state
 467                          *      Bit 8      = N/W Interface Link-up
 468                          *      Bit 9      = N/W Interface signal detected
 469                          *      Bits 10-11 = SFP Status
 470                          *        SFP Status 0x0 = SFP+ transceiver not expected
 471                          *        SFP Status 0x1 = SFP+ transceiver not present
 472                          *        SFP Status 0x2 = SFP+ transceiver invalid
 473                          *        SFP Status 0x3 = SFP+ transceiver present and
 474                          *        valid
 475                          *      Bits 12-14 = Heartbeat Counter
 476                          *      Bit 15     = Heartbeat Monitor Enable
 477                          *      Bits 16-17 = SFP Additional Info
 478                          *        SFP info 0x0 = Unregocnized transceiver for
 479                          *        Ethernet
 480                          *        SFP info 0x1 = SFP+ brand validation failed
 481                          *        SFP info 0x2 = SFP+ speed validation failed
 482                          *        SFP info 0x3 = SFP+ access error
 483                          *      Bit 18     = SFP Multirate
 484                          *      Bit 19     = SFP Tx Fault
 485                          *      Bits 20-22 = Link Speed
 486                          *      Bits 23-27 = Reserved
 487                          *      Bits 28-30 = DCBX Status
 488                          *        DCBX Status 0x0 = DCBX Disabled
 489                          *        DCBX Status 0x1 = DCBX Enabled
 490                          *        DCBX Status 0x2 = DCBX Exchange error
 491                          *      Bit 31     = Reserved
 492                          */
 493                         peg_fw_state = (mb[2] & 0x00ff);
 494                         nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
 495                         nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
 496                         sfp_status = ((mb[2] & 0x0c00) >> 10);
 497                         htbt_counter = ((mb[2] & 0x7000) >> 12);
 498                         htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
 499                         sfp_additonal_info = (mb[6] & 0x0003);
 500                         sfp_multirate = ((mb[6] & 0x0004) >> 2);
 501                         sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
 502                         link_speed = ((mb[6] & 0x0070) >> 4);
 503                         dcbx_status = ((mb[6] & 0x7000) >> 12);
 504
 505                         ql_log(ql_log_warn, vha, 0x5066,
 506                             "Peg-to-Fc Status Register:\n"
 507                             "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
 508                             "nw_interface_signal_detect=0x%x"
 509                             "\nsfp_statis=0x%x.\n ", peg_fw_state,
 510                             nw_interface_link_up, nw_interface_signal_detect,
 511                             sfp_status);
 512                         ql_log(ql_log_warn, vha, 0x5067,
 513                             "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
 514                             "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
 515                             htbt_counter, htbt_monitor_enable,
 516                             sfp_additonal_info, sfp_multirate);
 517                         ql_log(ql_log_warn, vha, 0x5068,
 518                             "sfp_tx_fault=0x%x, link_state=0x%x, "
 519                             "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
 520                             dcbx_status);
 521
 522                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 523                 }
 524
 525                 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
 526                         ql_log(ql_log_warn, vha, 0x5069,
 527                             "Heartbeat Failure encountered, chip reset "
 528                             "required.\n");
 529
 530                         qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
 531                 }
 532         }
 533
 534         if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
 535                 ql_log(ql_log_info, vha, 0x506a,
 536                     "IDC Device-State changed = 0x%x.\n", mb[4]);
 537                 if (ha->flags.nic_core_reset_owner)
 538                         return;
 539                 qla83xx_schedule_work(vha, MBA_IDC_AEN);
 540         }
 541 }
 542
 543 int
 544 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
 545 {
 546         struct qla_hw_data *ha = vha->hw;
 547         scsi_qla_host_t *vp;
 548         uint32_t vp_did;
 549         unsigned long flags;
 550         int ret = 0;
 551
 552         if (!ha->num_vhosts)
 553                 return ret;
 554
 555         spin_lock_irqsave(&ha->vport_slock, flags);
 556         list_for_each_entry(vp, &ha->vp_list, list) {
 557                 vp_did = vp->d_id.b24;
 558                 if (vp_did == rscn_entry) {
 559                         ret = 1;
 560                         break;
 561                 }
 562         }
 563         spin_unlock_irqrestore(&ha->vport_slock, flags);
 564
 565         return ret;
 566 }
 567
 568 static inline fc_port_t *
 569 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
 570 {
 571         fc_port_t *fcport;
 572
 573         list_for_each_entry(fcport, &vha->vp_fcports, list)
 574                 if (fcport->loop_id == loop_id)
 575                         return fcport;
 576         return NULL;
 577 }
 578
 579 /**
 580  * qla2x00_async_event() - Process aynchronous events.
 581  * @ha: SCSI driver HA context
 582  * @mb: Mailbox registers (0 - 3)
 583  */
 584 void
 585 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 586 {
 587         uint16_t        handle_cnt;
 588         uint16_t        cnt, mbx;
 589         uint32_t        handles[5];
 590         struct qla_hw_data *ha = vha->hw;
 591         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 592         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
 593         struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 594         uint32_t        rscn_entry, host_pid;
 595         unsigned long   flags;
 596         fc_port_t       *fcport = NULL;
 597
 598         /* Setup to process RIO completion. */
 599         handle_cnt = 0;
 600         if (IS_CNA_CAPABLE(ha))
 601                 goto skip_rio;
 602         switch (mb[0]) {
 603         case MBA_SCSI_COMPLETION:
 604                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 605                 handle_cnt = 1;
 606                 break;
 607         case MBA_CMPLT_1_16BIT:
 608                 handles[0] = mb[1];
 609                 handle_cnt = 1;
 610                 mb[0] = MBA_SCSI_COMPLETION;
 611                 break;
 612         case MBA_CMPLT_2_16BIT:
 613                 handles[0] = mb[1];
 614                 handles[1] = mb[2];
 615                 handle_cnt = 2;
 616                 mb[0] = MBA_SCSI_COMPLETION;
 617                 break;
 618         case MBA_CMPLT_3_16BIT:
 619                 handles[0] = mb[1];
 620                 handles[1] = mb[2];
 621                 handles[2] = mb[3];
 622                 handle_cnt = 3;
 623                 mb[0] = MBA_SCSI_COMPLETION;
 624                 break;
 625         case MBA_CMPLT_4_16BIT:
 626                 handles[0] = mb[1];
 627                 handles[1] = mb[2];
 628                 handles[2] = mb[3];
 629                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 630                 handle_cnt = 4;
 631                 mb[0] = MBA_SCSI_COMPLETION;
 632                 break;
 633         case MBA_CMPLT_5_16BIT:
 634                 handles[0] = mb[1];
 635                 handles[1] = mb[2];
 636                 handles[2] = mb[3];
 637                 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
 638                 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
 639                 handle_cnt = 5;
 640                 mb[0] = MBA_SCSI_COMPLETION;
 641                 break;
 642         case MBA_CMPLT_2_32BIT:
 643                 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
 644                 handles[1] = le32_to_cpu(
 645                     ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
 646                     RD_MAILBOX_REG(ha, reg, 6));
 647                 handle_cnt = 2;
 648                 mb[0] = MBA_SCSI_COMPLETION;
 649                 break;
 650         default:
 651                 break;
 652         }
 653 skip_rio:
 654         switch (mb[0]) {
 655         case MBA_SCSI_COMPLETION:       /* Fast Post */
 656                 if (!vha->flags.online)
 657                         break;
 658
 659                 for (cnt = 0; cnt < handle_cnt; cnt++)
 660                         qla2x00_process_completed_request(vha, rsp->req,
 661                                 handles[cnt]);
 662                 break;
 663
 664         case MBA_RESET:                 /* Reset */
 665                 ql_dbg(ql_dbg_async, vha, 0x5002,
 666                     "Asynchronous RESET.\n");
 667
 668                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 669                 break;
 670
 671         case MBA_SYSTEM_ERR:            /* System Error */
 672                 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
 673                         RD_REG_WORD(&reg24->mailbox7) : 0;
 674                 ql_log(ql_log_warn, vha, 0x5003,
 675                     "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
 676                     "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
 677
 678                 ha->isp_ops->fw_dump(vha, 1);
 679
 680                 if (IS_FWI2_CAPABLE(ha)) {
 681                         if (mb[1] == 0 && mb[2] == 0) {
 682                                 ql_log(ql_log_fatal, vha, 0x5004,
 683                                     "Unrecoverable Hardware Error: adapter "
 684                                     "marked OFFLINE!\n");
 685                                 vha->flags.online = 0;
 686                                 vha->device_flags |= DFLG_DEV_FAILED;
 687                         } else {
 688                                 /* Check to see if MPI timeout occurred */
 689                                 if ((mbx & MBX_3) && (ha->port_no == 0))
 690                                         set_bit(MPI_RESET_NEEDED,
 691                                             &vha->dpc_flags);
 692
 693                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 694                         }
 695                 } else if (mb[1] == 0) {
 696                         ql_log(ql_log_fatal, vha, 0x5005,
 697                             "Unrecoverable Hardware Error: adapter marked "
 698                             "OFFLINE!\n");
 699                         vha->flags.online = 0;
 700                         vha->device_flags |= DFLG_DEV_FAILED;
 701                 } else
 702                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 703                 break;
 704
 705         case MBA_REQ_TRANSFER_ERR:      /* Request Transfer Error */
 706                 ql_log(ql_log_warn, vha, 0x5006,
 707                     "ISP Request Transfer Error (%x).\n",  mb[1]);
 708
 709                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 710                 break;
 711
 712         case MBA_RSP_TRANSFER_ERR:      /* Response Transfer Error */
 713                 ql_log(ql_log_warn, vha, 0x5007,
 714                     "ISP Response Transfer Error (%x).\n", mb[1]);
 715
 716                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 717                 break;
 718
 719         case MBA_WAKEUP_THRES:          /* Request Queue Wake-up */
 720                 ql_dbg(ql_dbg_async, vha, 0x5008,
 721                     "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
 722                 break;
 723
 724         case MBA_LOOP_INIT_ERR:
 725                 ql_log(ql_log_warn, vha, 0x5090,
 726                     "LOOP INIT ERROR (%x).\n", mb[1]);
 727                 ha->isp_ops->fw_dump(vha, 1);
 728                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 729                 break;
 730
 731         case MBA_LIP_OCCURRED:          /* Loop Initialization Procedure */
 732                 ql_dbg(ql_dbg_async, vha, 0x5009,
 733                     "LIP occurred (%x).\n", mb[1]);
 734
 735                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 736                         atomic_set(&vha->loop_state, LOOP_DOWN);
 737                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 738                         qla2x00_mark_all_devices_lost(vha, 1);
 739                 }
 740
 741                 if (vha->vp_idx) {
 742                         atomic_set(&vha->vp_state, VP_FAILED);
 743                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 744                 }
 745
 746                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 747                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 748
 749                 vha->flags.management_server_logged_in = 0;
 750                 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
 751                 break;
 752
 753         case MBA_LOOP_UP:               /* Loop Up Event */
 754                 if (IS_QLA2100(ha) || IS_QLA2200(ha))
 755                         ha->link_data_rate = PORT_SPEED_1GB;
 756                 else
 757                         ha->link_data_rate = mb[1];
 758
 759                 ql_log(ql_log_info, vha, 0x500a,
 760                     "LOOP UP detected (%s Gbps).\n",
 761                     qla2x00_get_link_speed_str(ha, ha->link_data_rate));
 762
 763                 vha->flags.management_server_logged_in = 0;
 764                 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
 765                 break;
 766
 767         case MBA_LOOP_DOWN:             /* Loop Down Event */
 768                 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
 769                         ? RD_REG_WORD(&reg24->mailbox4) : 0;
 770                 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
 771                         : mbx;
 772                 ql_log(ql_log_info, vha, 0x500b,
 773                     "LOOP DOWN detected (%x %x %x %x).\n",
 774                     mb[1], mb[2], mb[3], mbx);
 775
 776                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 777                         atomic_set(&vha->loop_state, LOOP_DOWN);
 778                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 779                         /*
 780                          * In case of loop down, restore WWPN from
 781                          * NVRAM in case of FA-WWPN capable ISP
 782                          * Restore for Physical Port only
 783                          */
 784                         if (!vha->vp_idx) {
 785                                 if (ha->flags.fawwpn_enabled) {
 786                                         void *wwpn = ha->init_cb->port_name;
 787                                         memcpy(vha->port_name, wwpn, WWN_SIZE);
 788                                         fc_host_port_name(vha->host) =
 789                                             wwn_to_u64(vha->port_name);
 790                                         ql_dbg(ql_dbg_init + ql_dbg_verbose,
 791                                             vha, 0x0144, "LOOP DOWN detected,"
 792                                             "restore WWPN %016llx\n",
 793                                             wwn_to_u64(vha->port_name));
 794                                 }
 795
 796                                 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
 797                         }
 798
 799                         vha->device_flags |= DFLG_NO_CABLE;
 800                         qla2x00_mark_all_devices_lost(vha, 1);
 801                 }
 802
 803                 if (vha->vp_idx) {
 804                         atomic_set(&vha->vp_state, VP_FAILED);
 805                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 806                 }
 807
 808                 vha->flags.management_server_logged_in = 0;
 809                 ha->link_data_rate = PORT_SPEED_UNKNOWN;
 810                 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
 811                 break;
 812
 813         case MBA_LIP_RESET:             /* LIP reset occurred */
 814                 ql_dbg(ql_dbg_async, vha, 0x500c,
 815                     "LIP reset occurred (%x).\n", mb[1]);
 816
 817                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 818                         atomic_set(&vha->loop_state, LOOP_DOWN);
 819                         atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 820                         qla2x00_mark_all_devices_lost(vha, 1);
 821                 }
 822
 823                 if (vha->vp_idx) {
 824                         atomic_set(&vha->vp_state, VP_FAILED);
 825                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 826                 }
 827
 828                 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 829
 830                 ha->operating_mode = LOOP;
 831                 vha->flags.management_server_logged_in = 0;
 832                 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
 833                 break;
 834
 835         /* case MBA_DCBX_COMPLETE: */
 836         case MBA_POINT_TO_POINT:        /* Point-to-Point */
 837                 if (IS_QLA2100(ha))
 838                         break;
 839
 840                 if (IS_CNA_CAPABLE(ha)) {
 841                         ql_dbg(ql_dbg_async, vha, 0x500d,
 842                             "DCBX Completed -- %04x %04x %04x.\n",
 843                             mb[1], mb[2], mb[3]);
 844                         if (ha->notify_dcbx_comp && !vha->vp_idx)
 845                                 complete(&ha->dcbx_comp);
 846
 847                 } else
 848                         ql_dbg(ql_dbg_async, vha, 0x500e,
 849                             "Asynchronous P2P MODE received.\n");
 850
 851                 /*
 852                  * Until there's a transition from loop down to loop up, treat
 853                  * this as loop down only.
 854                  */
 855                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 856                         atomic_set(&vha->loop_state, LOOP_DOWN);
 857                         if (!atomic_read(&vha->loop_down_timer))
 858                                 atomic_set(&vha->loop_down_timer,
 859                                     LOOP_DOWN_TIME);
 860                         qla2x00_mark_all_devices_lost(vha, 1);
 861                 }
 862
 863                 if (vha->vp_idx) {
 864                         atomic_set(&vha->vp_state, VP_FAILED);
 865                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 866                 }
 867
 868                 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
 869                         set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
 870
 871                 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
 872                 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
 873
 874                 ha->flags.gpsc_supported = 1;
 875                 vha->flags.management_server_logged_in = 0;
 876                 break;
 877
 878         case MBA_CHG_IN_CONNECTION:     /* Change in connection mode */
 879                 if (IS_QLA2100(ha))
 880                         break;
 881
 882                 ql_dbg(ql_dbg_async, vha, 0x500f,
 883                     "Configuration change detected: value=%x.\n", mb[1]);
 884
 885                 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 886                         atomic_set(&vha->loop_state, LOOP_DOWN);
 887                         if (!atomic_read(&vha->loop_down_timer))
 888                                 atomic_set(&vha->loop_down_timer,
 889                                     LOOP_DOWN_TIME);
 890                         qla2x00_mark_all_devices_lost(vha, 1);
 891                 }
 892
 893                 if (vha->vp_idx) {
 894                         atomic_set(&vha->vp_state, VP_FAILED);
 895                         fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
 896                 }
 897
 898                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 899                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 900                 break;
 901
 902         case MBA_PORT_UPDATE:           /* Port database update */
 903                 /*
 904                  * Handle only global and vn-port update events
 905                  *
 906                  * Relevant inputs:
 907                  * mb[1] = N_Port handle of changed port
 908                  * OR 0xffff for global event
 909                  * mb[2] = New login state
 910                  * 7 = Port logged out
 911                  * mb[3] = LSB is vp_idx, 0xff = all vps
 912                  *
 913                  * Skip processing if:
 914                  *       Event is global, vp_idx is NOT all vps,
 915                  *           vp_idx does not match
 916                  *       Event is not global, vp_idx does not match
 917                  */
 918                 if (IS_QLA2XXX_MIDTYPE(ha) &&
 919                     ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
 920                         (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
 921                         break;
 922
 923                 if (mb[2] == 0x7) {
 924                         ql_dbg(ql_dbg_async, vha, 0x5010,
 925                             "Port %s %04x %04x %04x.\n",
 926                             mb[1] == 0xffff ? "unavailable" : "logout",
 927                             mb[1], mb[2], mb[3]);
 928
 929                         if (mb[1] == 0xffff)
 930                                 goto global_port_update;
 931
 932                         /* Port logout */
 933                         fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
 934                         if (!fcport)
 935                                 break;
 936                         if (atomic_read(&fcport->state) != FCS_ONLINE)
 937                                 break;
 938                         ql_dbg(ql_dbg_async, vha, 0x508a,
 939                             "Marking port lost loopid=%04x portid=%06x.\n",
 940                             fcport->loop_id, fcport->d_id.b24);
 941                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
 942                         break;
 943
 944 global_port_update:
 945                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 946                                 atomic_set(&vha->loop_state, LOOP_DOWN);
 947                                 atomic_set(&vha->loop_down_timer,
 948                                     LOOP_DOWN_TIME);
 949                                 vha->device_flags |= DFLG_NO_CABLE;
 950                                 qla2x00_mark_all_devices_lost(vha, 1);
 951                         }
 952
 953                         if (vha->vp_idx) {
 954                                 atomic_set(&vha->vp_state, VP_FAILED);
 955                                 fc_vport_set_state(vha->fc_vport,
 956                                     FC_VPORT_FAILED);
 957                                 qla2x00_mark_all_devices_lost(vha, 1);
 958                         }
 959
 960                         vha->flags.management_server_logged_in = 0;
 961                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
 962                         break;
 963                 }
 964
 965                 /*
 966                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
 967                  * event etc. earlier indicating loop is down) then process
 968                  * it.  Otherwise ignore it and Wait for RSCN to come in.
 969                  */
 970                 atomic_set(&vha->loop_down_timer, 0);
 971                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
 972                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
 973                         ql_dbg(ql_dbg_async, vha, 0x5011,
 974                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
 975                             mb[1], mb[2], mb[3]);
 976                         break;
 977                 }
 978
 979                 ql_dbg(ql_dbg_async, vha, 0x5012,
 980                     "Port database changed %04x %04x %04x.\n",
 981                     mb[1], mb[2], mb[3]);
 982
 983                 /*
 984                  * Mark all devices as missing so we will login again.
 985                  */
 986                 atomic_set(&vha->loop_state, LOOP_UP);
 987
 988                 qla2x00_mark_all_devices_lost(vha, 1);
 989
 990                 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
 991                         set_bit(SCR_PENDING, &vha->dpc_flags);
 992
 993                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 994                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 995                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
 996                 break;
 997
 998         case MBA_RSCN_UPDATE:           /* State Change Registration */
 999                 /* Check if the Vport has issued a SCR */
1000                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1001                         break;
1002                 /* Only handle SCNs for our Vport index. */
1003                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1004                         break;
1005
1006                 ql_dbg(ql_dbg_async, vha, 0x5013,
1007                     "RSCN database changed -- %04x %04x %04x.\n",
1008                     mb[1], mb[2], mb[3]);
1009
1010                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1011                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1012                                 | vha->d_id.b.al_pa;
1013                 if (rscn_entry == host_pid) {
1014                         ql_dbg(ql_dbg_async, vha, 0x5014,
1015                             "Ignoring RSCN update to local host "
1016                             "port ID (%06x).\n", host_pid);
1017                         break;
1018                 }
1019
1020                 /* Ignore reserved bits from RSCN-payload. */
1021                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1022
1023                 /* Skip RSCNs for virtual ports on the same physical port */
1024                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1025                         break;
1026
1027                 /*
1028                  * Search for the rport related to this RSCN entry and mark it
1029                  * as lost.
1030                  */
1031                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1032                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1033                                 continue;
1034                         if (fcport->d_id.b24 == rscn_entry) {
1035                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1036                                 break;
1037                         }
1038                 }
1039
1040                 atomic_set(&vha->loop_down_timer, 0);
1041                 vha->flags.management_server_logged_in = 0;
1042
1043                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1044                 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1045                 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1046                 break;
1047
1048         /* case MBA_RIO_RESPONSE: */
1049         case MBA_ZIO_RESPONSE:
1050                 ql_dbg(ql_dbg_async, vha, 0x5015,
1051                     "[R|Z]IO update completion.\n");
1052
1053                 if (IS_FWI2_CAPABLE(ha))
1054                         qla24xx_process_response_queue(vha, rsp);
1055                 else
1056                         qla2x00_process_response_queue(rsp);
1057                 break;
1058
1059         case MBA_DISCARD_RND_FRAME:
1060                 ql_dbg(ql_dbg_async, vha, 0x5016,
1061                     "Discard RND Frame -- %04x %04x %04x.\n",
1062                     mb[1], mb[2], mb[3]);
1063                 break;
1064
1065         case MBA_TRACE_NOTIFICATION:
1066                 ql_dbg(ql_dbg_async, vha, 0x5017,
1067                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1068                 break;
1069
1070         case MBA_ISP84XX_ALERT:
1071                 ql_dbg(ql_dbg_async, vha, 0x5018,
1072                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1073                     mb[1], mb[2], mb[3]);
1074
1075                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1076                 switch (mb[1]) {
1077                 case A84_PANIC_RECOVERY:
1078                         ql_log(ql_log_info, vha, 0x5019,
1079                             "Alert 84XX: panic recovery %04x %04x.\n",
1080                             mb[2], mb[3]);
1081                         break;
1082                 case A84_OP_LOGIN_COMPLETE:
1083                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1084                         ql_log(ql_log_info, vha, 0x501a,
1085                             "Alert 84XX: firmware version %x.\n",
1086                             ha->cs84xx->op_fw_version);
1087                         break;
1088                 case A84_DIAG_LOGIN_COMPLETE:
1089                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1090                         ql_log(ql_log_info, vha, 0x501b,
1091                             "Alert 84XX: diagnostic firmware version %x.\n",
1092                             ha->cs84xx->diag_fw_version);
1093                         break;
1094                 case A84_GOLD_LOGIN_COMPLETE:
1095                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1096                         ha->cs84xx->fw_update = 1;
1097                         ql_log(ql_log_info, vha, 0x501c,
1098                             "Alert 84XX: gold firmware version %x.\n",
1099                             ha->cs84xx->gold_fw_version);
1100                         break;
1101                 default:
1102                         ql_log(ql_log_warn, vha, 0x501d,
1103                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1104                             mb[1], mb[2], mb[3]);
1105                 }
1106                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1107                 break;
1108         case MBA_DCBX_START:
1109                 ql_dbg(ql_dbg_async, vha, 0x501e,
1110                     "DCBX Started -- %04x %04x %04x.\n",
1111                     mb[1], mb[2], mb[3]);
1112                 break;
1113         case MBA_DCBX_PARAM_UPDATE:
1114                 ql_dbg(ql_dbg_async, vha, 0x501f,
1115                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1116                     mb[1], mb[2], mb[3]);
1117                 break;
1118         case MBA_FCF_CONF_ERR:
1119                 ql_dbg(ql_dbg_async, vha, 0x5020,
1120                     "FCF Configuration Error -- %04x %04x %04x.\n",
1121                     mb[1], mb[2], mb[3]);
1122                 break;
1123         case MBA_IDC_NOTIFY:
1124                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1125                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1126                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1127                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1128                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1129                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1130                                 /*
1131                                  * Extend loop down timer since port is active.
1132                                  */
1133                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1134                                         atomic_set(&vha->loop_down_timer,
1135                                             LOOP_DOWN_TIME);
1136                                 qla2xxx_wake_dpc(vha);
1137                         }
1138                 }
1139         case MBA_IDC_COMPLETE:
1140                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1141                         complete(&ha->lb_portup_comp);
1142                 /* Fallthru */
1143         case MBA_IDC_TIME_EXT:
1144                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1145                     IS_QLA8044(ha))
1146                         qla81xx_idc_event(vha, mb[0], mb[1]);
1147                 break;
1148
1149         case MBA_IDC_AEN:
1150                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1151                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1152                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1153                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1154                 qla83xx_handle_8200_aen(vha, mb);
1155                 break;
1156
1157         case MBA_DPORT_DIAGNOSTICS:
1158                 ql_dbg(ql_dbg_async, vha, 0x5052,
1159                     "D-Port Diagnostics: %04x result=%s\n",
1160                     mb[0],
1161                     mb[1] == 0 ? "start" :
1162                     mb[1] == 1 ? "done (pass)" :
1163                     mb[1] == 2 ? "done (error)" : "other");
1164                 break;
1165
1166         case MBA_TEMPERATURE_ALERT:
1167                 ql_dbg(ql_dbg_async, vha, 0x505e,
1168                     "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1169                 if (mb[1] == 0x12)
1170                         schedule_work(&ha->board_disable);
1171                 break;
1172
1173         default:
1174                 ql_dbg(ql_dbg_async, vha, 0x5057,
1175                     "Unknown AEN:%04x %04x %04x %04x\n",
1176                     mb[0], mb[1], mb[2], mb[3]);
1177         }
1178
1179         qlt_async_event(mb[0], vha, mb);
1180
1181         if (!vha->vp_idx && ha->num_vhosts)
1182                 qla2x00_alert_all_vps(rsp, mb);
1183 }
1184
1185 /**
1186  * qla2x00_process_completed_request() - Process a Fast Post response.
1187  * @ha: SCSI driver HA context
1188  * @index: SRB index
1189  */
1190 void
1191 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1192                                   struct req_que *req, uint32_t index)
1193 {
1194         srb_t *sp;
1195         struct qla_hw_data *ha = vha->hw;
1196
1197         /* Validate handle. */
1198         if (index >= req->num_outstanding_cmds) {
1199                 ql_log(ql_log_warn, vha, 0x3014,
1200                     "Invalid SCSI command index (%x).\n", index);
1201
1202                 if (IS_P3P_TYPE(ha))
1203                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1204                 else
1205                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1206                 return;
1207         }
1208
1209         sp = req->outstanding_cmds[index];
1210         if (sp) {
1211                 /* Free outstanding command slot. */
1212                 req->outstanding_cmds[index] = NULL;
1213
1214                 /* Save ISP completion status */
1215                 sp->done(ha, sp, DID_OK << 16);
1216         } else {
1217                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1218
1219                 if (IS_P3P_TYPE(ha))
1220                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1221                 else
1222                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1223         }
1224 }
1225
1226 srb_t *
1227 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1228     struct req_que *req, void *iocb)
1229 {
1230         struct qla_hw_data *ha = vha->hw;
1231         sts_entry_t *pkt = iocb;
1232         srb_t *sp = NULL;
1233         uint16_t index;
1234
1235         index = LSW(pkt->handle);
1236         if (index >= req->num_outstanding_cmds) {
1237                 ql_log(ql_log_warn, vha, 0x5031,
1238                     "Invalid command index (%x).\n", index);
1239                 if (IS_P3P_TYPE(ha))
1240                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1241                 else
1242                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1243                 goto done;
1244         }
1245         sp = req->outstanding_cmds[index];
1246         if (!sp) {
1247                 ql_log(ql_log_warn, vha, 0x5032,
1248                     "Invalid completion handle (%x) -- timed-out.\n", index);
1249                 return sp;
1250         }
1251         if (sp->handle != index) {
1252                 ql_log(ql_log_warn, vha, 0x5033,
1253                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1254                 return NULL;
1255         }
1256
1257         req->outstanding_cmds[index] = NULL;
1258
1259 done:
1260         return sp;
1261 }
1262
1263 static void
1264 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1265     struct mbx_entry *mbx)
1266 {
1267         const char func[] = "MBX-IOCB";
1268         const char *type;
1269         fc_port_t *fcport;
1270         srb_t *sp;
1271         struct srb_iocb *lio;
1272         uint16_t *data;
1273         uint16_t status;
1274
1275         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1276         if (!sp)
1277                 return;
1278
1279         lio = &sp->u.iocb_cmd;
1280         type = sp->name;
1281         fcport = sp->fcport;
1282         data = lio->u.logio.data;
1283
1284         data[0] = MBS_COMMAND_ERROR;
1285         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1286             QLA_LOGIO_LOGIN_RETRIED : 0;
1287         if (mbx->entry_status) {
1288                 ql_dbg(ql_dbg_async, vha, 0x5043,
1289                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1290                     "entry-status=%x status=%x state-flag=%x "
1291                     "status-flags=%x.\n", type, sp->handle,
1292                     fcport->d_id.b.domain, fcport->d_id.b.area,
1293                     fcport->d_id.b.al_pa, mbx->entry_status,
1294                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1295                     le16_to_cpu(mbx->status_flags));
1296
1297                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1298                     (uint8_t *)mbx, sizeof(*mbx));
1299
1300                 goto logio_done;
1301         }
1302
1303         status = le16_to_cpu(mbx->status);
1304         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1305             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1306                 status = 0;
1307         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1308                 ql_dbg(ql_dbg_async, vha, 0x5045,
1309                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1310                     type, sp->handle, fcport->d_id.b.domain,
1311                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1312                     le16_to_cpu(mbx->mb1));
1313
1314                 data[0] = MBS_COMMAND_COMPLETE;
1315                 if (sp->type == SRB_LOGIN_CMD) {
1316                         fcport->port_type = FCT_TARGET;
1317                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1318                                 fcport->port_type = FCT_INITIATOR;
1319                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1320                                 fcport->flags |= FCF_FCP2_DEVICE;
1321                 }
1322                 goto logio_done;
1323         }
1324
1325         data[0] = le16_to_cpu(mbx->mb0);
1326         switch (data[0]) {
1327         case MBS_PORT_ID_USED:
1328                 data[1] = le16_to_cpu(mbx->mb1);
1329                 break;
1330         case MBS_LOOP_ID_USED:
1331                 break;
1332         default:
1333                 data[0] = MBS_COMMAND_ERROR;
1334                 break;
1335         }
1336
1337         ql_log(ql_log_warn, vha, 0x5046,
1338             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1339             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1340             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1341             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1342             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1343             le16_to_cpu(mbx->mb7));
1344
1345 logio_done:
1346         sp->done(vha, sp, 0);
1347 }
1348
1349 static void
1350 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1351     sts_entry_t *pkt, int iocb_type)
1352 {
1353         const char func[] = "CT_IOCB";
1354         const char *type;
1355         srb_t *sp;
1356         struct fc_bsg_job *bsg_job;
1357         uint16_t comp_status;
1358         int res;
1359
1360         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1361         if (!sp)
1362                 return;
1363
1364         bsg_job = sp->u.bsg_job;
1365
1366         type = "ct pass-through";
1367
1368         comp_status = le16_to_cpu(pkt->comp_status);
1369
1370         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1371          * fc payload  to the caller
1372          */
1373         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1374         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1375
1376         if (comp_status != CS_COMPLETE) {
1377                 if (comp_status == CS_DATA_UNDERRUN) {
1378                         res = DID_OK << 16;
1379                         bsg_job->reply->reply_payload_rcv_len =
1380                             le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1381
1382                         ql_log(ql_log_warn, vha, 0x5048,
1383                             "CT pass-through-%s error "
1384                             "comp_status-status=0x%x total_byte = 0x%x.\n",
1385                             type, comp_status,
1386                             bsg_job->reply->reply_payload_rcv_len);
1387                 } else {
1388                         ql_log(ql_log_warn, vha, 0x5049,
1389                             "CT pass-through-%s error "
1390                             "comp_status-status=0x%x.\n", type, comp_status);
1391                         res = DID_ERROR << 16;
1392                         bsg_job->reply->reply_payload_rcv_len = 0;
1393                 }
1394                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1395                     (uint8_t *)pkt, sizeof(*pkt));
1396         } else {
1397                 res = DID_OK << 16;
1398                 bsg_job->reply->reply_payload_rcv_len =
1399                     bsg_job->reply_payload.payload_len;
1400                 bsg_job->reply_len = 0;
1401         }
1402
1403         sp->done(vha, sp, res);
1404 }
1405
1406 static void
1407 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1408     struct sts_entry_24xx *pkt, int iocb_type)
1409 {
1410         const char func[] = "ELS_CT_IOCB";
1411         const char *type;
1412         srb_t *sp;
1413         struct fc_bsg_job *bsg_job;
1414         uint16_t comp_status;
1415         uint32_t fw_status[3];
1416         uint8_t* fw_sts_ptr;
1417         int res;
1418
1419         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1420         if (!sp)
1421                 return;
1422         bsg_job = sp->u.bsg_job;
1423
1424         type = NULL;
1425         switch (sp->type) {
1426         case SRB_ELS_CMD_RPT:
1427         case SRB_ELS_CMD_HST:
1428                 type = "els";
1429                 break;
1430         case SRB_CT_CMD:
1431                 type = "ct pass-through";
1432                 break;
1433         case SRB_ELS_DCMD:
1434                 type = "Driver ELS logo";
1435                 ql_dbg(ql_dbg_user, vha, 0x5047,
1436                     "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1437                 sp->done(vha, sp, 0);
1438                 return;
1439         default:
1440                 ql_dbg(ql_dbg_user, vha, 0x503e,
1441                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1442                 return;
1443         }
1444
1445         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1446         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1447         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1448
1449         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1450          * fc payload  to the caller
1451          */
1452         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1453         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1454
1455         if (comp_status != CS_COMPLETE) {
1456                 if (comp_status == CS_DATA_UNDERRUN) {
1457                         res = DID_OK << 16;
1458                         bsg_job->reply->reply_payload_rcv_len =
1459                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1460
1461                         ql_dbg(ql_dbg_user, vha, 0x503f,
1462                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1463                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1464                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1465                             le16_to_cpu(((struct els_sts_entry_24xx *)
1466                                 pkt)->total_byte_count));
1467                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1468                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1469                 }
1470                 else {
1471                         ql_dbg(ql_dbg_user, vha, 0x5040,
1472                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1473                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1474                             type, sp->handle, comp_status,
1475                             le16_to_cpu(((struct els_sts_entry_24xx *)
1476                                 pkt)->error_subcode_1),
1477                             le16_to_cpu(((struct els_sts_entry_24xx *)
1478                                     pkt)->error_subcode_2));
1479                         res = DID_ERROR << 16;
1480                         bsg_job->reply->reply_payload_rcv_len = 0;
1481                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1482                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1483                 }
1484                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1485                                 (uint8_t *)pkt, sizeof(*pkt));
1486         }
1487         else {
1488                 res =  DID_OK << 16;
1489                 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1490                 bsg_job->reply_len = 0;
1491         }
1492
1493         sp->done(vha, sp, res);
1494 }
1495
1496 static void
1497 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1498     struct logio_entry_24xx *logio)
1499 {
1500         const char func[] = "LOGIO-IOCB";
1501         const char *type;
1502         fc_port_t *fcport;
1503         srb_t *sp;
1504         struct srb_iocb *lio;
1505         uint16_t *data;
1506         uint32_t iop[2];
1507
1508         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1509         if (!sp)
1510                 return;
1511
1512         lio = &sp->u.iocb_cmd;
1513         type = sp->name;
1514         fcport = sp->fcport;
1515         data = lio->u.logio.data;
1516
1517         data[0] = MBS_COMMAND_ERROR;
1518         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1519                 QLA_LOGIO_LOGIN_RETRIED : 0;
1520         if (logio->entry_status) {
1521                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1522                     "Async-%s error entry - hdl=%x"
1523                     "portid=%02x%02x%02x entry-status=%x.\n",
1524                     type, sp->handle, fcport->d_id.b.domain,
1525                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1526                     logio->entry_status);
1527                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1528                     (uint8_t *)logio, sizeof(*logio));
1529
1530                 goto logio_done;
1531         }
1532
1533         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1534                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1535                     "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1536                     "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1537                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1538                     le32_to_cpu(logio->io_parameter[0]));
1539
1540                 data[0] = MBS_COMMAND_COMPLETE;
1541                 if (sp->type != SRB_LOGIN_CMD)
1542                         goto logio_done;
1543
1544                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1545                 if (iop[0] & BIT_4) {
1546                         fcport->port_type = FCT_TARGET;
1547                         if (iop[0] & BIT_8)
1548                                 fcport->flags |= FCF_FCP2_DEVICE;
1549                 } else if (iop[0] & BIT_5)
1550                         fcport->port_type = FCT_INITIATOR;
1551
1552                 if (iop[0] & BIT_7)
1553                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1554
1555                 if (logio->io_parameter[7] || logio->io_parameter[8])
1556                         fcport->supported_classes |= FC_COS_CLASS2;
1557                 if (logio->io_parameter[9] || logio->io_parameter[10])
1558                         fcport->supported_classes |= FC_COS_CLASS3;
1559
1560                 goto logio_done;
1561         }
1562
1563         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1564         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1565         switch (iop[0]) {
1566         case LSC_SCODE_PORTID_USED:
1567                 data[0] = MBS_PORT_ID_USED;
1568                 data[1] = LSW(iop[1]);
1569                 break;
1570         case LSC_SCODE_NPORT_USED:
1571                 data[0] = MBS_LOOP_ID_USED;
1572                 break;
1573         default:
1574                 data[0] = MBS_COMMAND_ERROR;
1575                 break;
1576         }
1577
1578         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1579             "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1580             "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1581             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1582             le16_to_cpu(logio->comp_status),
1583             le32_to_cpu(logio->io_parameter[0]),
1584             le32_to_cpu(logio->io_parameter[1]));
1585
1586 logio_done:
1587         sp->done(vha, sp, 0);
1588 }
1589
1590 static void
1591 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1592 {
1593         const char func[] = "TMF-IOCB";
1594         const char *type;
1595         fc_port_t *fcport;
1596         srb_t *sp;
1597         struct srb_iocb *iocb;
1598         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1599
1600         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1601         if (!sp)
1602                 return;
1603
1604         iocb = &sp->u.iocb_cmd;
1605         type = sp->name;
1606         fcport = sp->fcport;
1607         iocb->u.tmf.data = QLA_SUCCESS;
1608
1609         if (sts->entry_status) {
1610                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1611                     "Async-%s error - hdl=%x entry-status(%x).\n",
1612                     type, sp->handle, sts->entry_status);
1613                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1614         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1615                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1616                     "Async-%s error - hdl=%x completion status(%x).\n",
1617                     type, sp->handle, sts->comp_status);
1618                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1619         } else if ((le16_to_cpu(sts->scsi_status) &
1620             SS_RESPONSE_INFO_LEN_VALID)) {
1621                 host_to_fcp_swap(sts->data, sizeof(sts->data));
1622                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1623                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1624                             "Async-%s error - hdl=%x not enough response(%d).\n",
1625                             type, sp->handle, sts->rsp_data_len);
1626                 } else if (sts->data[3]) {
1627                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1628                             "Async-%s error - hdl=%x response(%x).\n",
1629                             type, sp->handle, sts->data[3]);
1630                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1631                 }
1632         }
1633
1634         if (iocb->u.tmf.data != QLA_SUCCESS)
1635                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1636                     (uint8_t *)sts, sizeof(*sts));
1637
1638         sp->done(vha, sp, 0);
1639 }
1640
1641 /**
1642  * qla2x00_process_response_queue() - Process response queue entries.
1643  * @ha: SCSI driver HA context
1644  */
1645 void
1646 qla2x00_process_response_queue(struct rsp_que *rsp)
1647 {
1648         struct scsi_qla_host *vha;
1649         struct qla_hw_data *ha = rsp->hw;
1650         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1651         sts_entry_t     *pkt;
1652         uint16_t        handle_cnt;
1653         uint16_t        cnt;
1654
1655         vha = pci_get_drvdata(ha->pdev);
1656
1657         if (!vha->flags.online)
1658                 return;
1659
1660         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1661                 pkt = (sts_entry_t *)rsp->ring_ptr;
1662
1663                 rsp->ring_index++;
1664                 if (rsp->ring_index == rsp->length) {
1665                         rsp->ring_index = 0;
1666                         rsp->ring_ptr = rsp->ring;
1667                 } else {
1668                         rsp->ring_ptr++;
1669                 }
1670
1671                 if (pkt->entry_status != 0) {
1672                         qla2x00_error_entry(vha, rsp, pkt);
1673                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1674                         wmb();
1675                         continue;
1676                 }
1677
1678                 switch (pkt->entry_type) {
1679                 case STATUS_TYPE:
1680                         qla2x00_status_entry(vha, rsp, pkt);
1681                         break;
1682                 case STATUS_TYPE_21:
1683                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1684                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1685                                 qla2x00_process_completed_request(vha, rsp->req,
1686                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1687                         }
1688                         break;
1689                 case STATUS_TYPE_22:
1690                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1691                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1692                                 qla2x00_process_completed_request(vha, rsp->req,
1693                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1694                         }
1695                         break;
1696                 case STATUS_CONT_TYPE:
1697                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1698                         break;
1699                 case MBX_IOCB_TYPE:
1700                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1701                             (struct mbx_entry *)pkt);
1702                         break;
1703                 case CT_IOCB_TYPE:
1704                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1705                         break;
1706                 default:
1707                         /* Type Not Supported. */
1708                         ql_log(ql_log_warn, vha, 0x504a,
1709                             "Received unknown response pkt type %x "
1710                             "entry status=%x.\n",
1711                             pkt->entry_type, pkt->entry_status);
1712                         break;
1713                 }
1714                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1715                 wmb();
1716         }
1717
1718         /* Adjust ring index */
1719         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1720 }
1721
1722 static inline void
1723 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1724                      uint32_t sense_len, struct rsp_que *rsp, int res)
1725 {
1726         struct scsi_qla_host *vha = sp->fcport->vha;
1727         struct scsi_cmnd *cp = GET_CMD_SP(sp);
1728         uint32_t track_sense_len;
1729
1730         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1731                 sense_len = SCSI_SENSE_BUFFERSIZE;
1732
1733         SET_CMD_SENSE_LEN(sp, sense_len);
1734         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1735         track_sense_len = sense_len;
1736
1737         if (sense_len > par_sense_len)
1738                 sense_len = par_sense_len;
1739
1740         memcpy(cp->sense_buffer, sense_data, sense_len);
1741
1742         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1743         track_sense_len -= sense_len;
1744         SET_CMD_SENSE_LEN(sp, track_sense_len);
1745
1746         if (track_sense_len != 0) {
1747                 rsp->status_srb = sp;
1748                 cp->result = res;
1749         }
1750
1751         if (sense_len) {
1752                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1753                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1754                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1755                     cp);
1756                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1757                     cp->sense_buffer, sense_len);
1758         }
1759 }
1760
1761 struct scsi_dif_tuple {
1762         __be16 guard;       /* Checksum */
1763         __be16 app_tag;         /* APPL identifier */
1764         __be32 ref_tag;         /* Target LBA or indirect LBA */
1765 };
1766
1767 /*
1768  * Checks the guard or meta-data for the type of error
1769  * detected by the HBA. In case of errors, we set the
1770  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1771  * to indicate to the kernel that the HBA detected error.
1772  */
1773 static inline int
1774 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1775 {
1776         struct scsi_qla_host *vha = sp->fcport->vha;
1777         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1778         uint8_t         *ap = &sts24->data[12];
1779         uint8_t         *ep = &sts24->data[20];
1780         uint32_t        e_ref_tag, a_ref_tag;
1781         uint16_t        e_app_tag, a_app_tag;
1782         uint16_t        e_guard, a_guard;
1783
1784         /*
1785          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1786          * would make guard field appear at offset 2
1787          */
1788         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
1789         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1790         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1791         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
1792         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1793         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1794
1795         ql_dbg(ql_dbg_io, vha, 0x3023,
1796             "iocb(s) %p Returned STATUS.\n", sts24);
1797
1798         ql_dbg(ql_dbg_io, vha, 0x3024,
1799             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1800             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1801             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1802             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1803             a_app_tag, e_app_tag, a_guard, e_guard);
1804
1805         /*
1806          * Ignore sector if:
1807          * For type     3: ref & app tag is all 'f's
1808          * For type 0,1,2: app tag is all 'f's
1809          */
1810         if ((a_app_tag == 0xffff) &&
1811             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1812              (a_ref_tag == 0xffffffff))) {
1813                 uint32_t blocks_done, resid;
1814                 sector_t lba_s = scsi_get_lba(cmd);
1815
1816                 /* 2TB boundary case covered automatically with this */
1817                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1818
1819                 resid = scsi_bufflen(cmd) - (blocks_done *
1820                     cmd->device->sector_size);
1821
1822                 scsi_set_resid(cmd, resid);
1823                 cmd->result = DID_OK << 16;
1824
1825                 /* Update protection tag */
1826                 if (scsi_prot_sg_count(cmd)) {
1827                         uint32_t i, j = 0, k = 0, num_ent;
1828                         struct scatterlist *sg;
1829                         struct t10_pi_tuple *spt;
1830
1831                         /* Patch the corresponding protection tags */
1832                         scsi_for_each_prot_sg(cmd, sg,
1833                             scsi_prot_sg_count(cmd), i) {
1834                                 num_ent = sg_dma_len(sg) / 8;
1835                                 if (k + num_ent < blocks_done) {
1836                                         k += num_ent;
1837                                         continue;
1838                                 }
1839                                 j = blocks_done - k - 1;
1840                                 k = blocks_done;
1841                                 break;
1842                         }
1843
1844                         if (k != blocks_done) {
1845                                 ql_log(ql_log_warn, vha, 0x302f,
1846                                     "unexpected tag values tag:lba=%x:%llx)\n",
1847                                     e_ref_tag, (unsigned long long)lba_s);
1848                                 return 1;
1849                         }
1850
1851                         spt = page_address(sg_page(sg)) + sg->offset;
1852                         spt += j;
1853
1854                         spt->app_tag = 0xffff;
1855                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1856                                 spt->ref_tag = 0xffffffff;
1857                 }
1858
1859                 return 0;
1860         }
1861
1862         /* check guard */
1863         if (e_guard != a_guard) {
1864                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1865                     0x10, 0x1);
1866                 set_driver_byte(cmd, DRIVER_SENSE);
1867                 set_host_byte(cmd, DID_ABORT);
1868                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1869                 return 1;
1870         }
1871
1872         /* check ref tag */
1873         if (e_ref_tag != a_ref_tag) {
1874                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1875                     0x10, 0x3);
1876                 set_driver_byte(cmd, DRIVER_SENSE);
1877                 set_host_byte(cmd, DID_ABORT);
1878                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1879                 return 1;
1880         }
1881
1882         /* check appl tag */
1883         if (e_app_tag != a_app_tag) {
1884                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1885                     0x10, 0x2);
1886                 set_driver_byte(cmd, DRIVER_SENSE);
1887                 set_host_byte(cmd, DID_ABORT);
1888                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1889                 return 1;
1890         }
1891
1892         return 1;
1893 }
1894
1895 static void
1896 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1897                                   struct req_que *req, uint32_t index)
1898 {
1899         struct qla_hw_data *ha = vha->hw;
1900         srb_t *sp;
1901         uint16_t        comp_status;
1902         uint16_t        scsi_status;
1903         uint16_t thread_id;
1904         uint32_t rval = EXT_STATUS_OK;
1905         struct fc_bsg_job *bsg_job = NULL;
1906         sts_entry_t *sts;
1907         struct sts_entry_24xx *sts24;
1908         sts = (sts_entry_t *) pkt;
1909         sts24 = (struct sts_entry_24xx *) pkt;
1910
1911         /* Validate handle. */
1912         if (index >= req->num_outstanding_cmds) {
1913                 ql_log(ql_log_warn, vha, 0x70af,
1914                     "Invalid SCSI completion handle 0x%x.\n", index);
1915                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1916                 return;
1917         }
1918
1919         sp = req->outstanding_cmds[index];
1920         if (sp) {
1921                 /* Free outstanding command slot. */
1922                 req->outstanding_cmds[index] = NULL;
1923                 bsg_job = sp->u.bsg_job;
1924         } else {
1925                 ql_log(ql_log_warn, vha, 0x70b0,
1926                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1927                     req->id, index);
1928
1929                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1930                 return;
1931         }
1932
1933         if (IS_FWI2_CAPABLE(ha)) {
1934                 comp_status = le16_to_cpu(sts24->comp_status);
1935                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1936         } else {
1937                 comp_status = le16_to_cpu(sts->comp_status);
1938                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1939         }
1940
1941         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1942         switch (comp_status) {
1943         case CS_COMPLETE:
1944                 if (scsi_status == 0) {
1945                         bsg_job->reply->reply_payload_rcv_len =
1946                                         bsg_job->reply_payload.payload_len;
1947                         vha->qla_stats.input_bytes +=
1948                                 bsg_job->reply->reply_payload_rcv_len;
1949                         vha->qla_stats.input_requests++;
1950                         rval = EXT_STATUS_OK;
1951                 }
1952                 goto done;
1953
1954         case CS_DATA_OVERRUN:
1955                 ql_dbg(ql_dbg_user, vha, 0x70b1,
1956                     "Command completed with date overrun thread_id=%d\n",
1957                     thread_id);
1958                 rval = EXT_STATUS_DATA_OVERRUN;
1959                 break;
1960
1961         case CS_DATA_UNDERRUN:
1962                 ql_dbg(ql_dbg_user, vha, 0x70b2,
1963                     "Command completed with date underrun thread_id=%d\n",
1964                     thread_id);
1965                 rval = EXT_STATUS_DATA_UNDERRUN;
1966                 break;
1967         case CS_BIDIR_RD_OVERRUN:
1968                 ql_dbg(ql_dbg_user, vha, 0x70b3,
1969                     "Command completed with read data overrun thread_id=%d\n",
1970                     thread_id);
1971                 rval = EXT_STATUS_DATA_OVERRUN;
1972                 break;
1973
1974         case CS_BIDIR_RD_WR_OVERRUN:
1975                 ql_dbg(ql_dbg_user, vha, 0x70b4,
1976                     "Command completed with read and write data overrun "
1977                     "thread_id=%d\n", thread_id);
1978                 rval = EXT_STATUS_DATA_OVERRUN;
1979                 break;
1980
1981         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1982                 ql_dbg(ql_dbg_user, vha, 0x70b5,
1983                     "Command completed with read data over and write data "
1984                     "underrun thread_id=%d\n", thread_id);
1985                 rval = EXT_STATUS_DATA_OVERRUN;
1986                 break;
1987
1988         case CS_BIDIR_RD_UNDERRUN:
1989                 ql_dbg(ql_dbg_user, vha, 0x70b6,
1990                     "Command completed with read data data underrun "
1991                     "thread_id=%d\n", thread_id);
1992                 rval = EXT_STATUS_DATA_UNDERRUN;
1993                 break;
1994
1995         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1996                 ql_dbg(ql_dbg_user, vha, 0x70b7,
1997                     "Command completed with read data under and write data "
1998                     "overrun thread_id=%d\n", thread_id);
1999                 rval = EXT_STATUS_DATA_UNDERRUN;
2000                 break;
2001
2002         case CS_BIDIR_RD_WR_UNDERRUN:
2003                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2004                     "Command completed with read and write data underrun "
2005                     "thread_id=%d\n", thread_id);
2006                 rval = EXT_STATUS_DATA_UNDERRUN;
2007                 break;
2008
2009         case CS_BIDIR_DMA:
2010                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2011                     "Command completed with data DMA error thread_id=%d\n",
2012                     thread_id);
2013                 rval = EXT_STATUS_DMA_ERR;
2014                 break;
2015
2016         case CS_TIMEOUT:
2017                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2018                     "Command completed with timeout thread_id=%d\n",
2019                     thread_id);
2020                 rval = EXT_STATUS_TIMEOUT;
2021                 break;
2022         default:
2023                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2024                     "Command completed with completion status=0x%x "
2025                     "thread_id=%d\n", comp_status, thread_id);
2026                 rval = EXT_STATUS_ERR;
2027                 break;
2028         }
2029         bsg_job->reply->reply_payload_rcv_len = 0;
2030
2031 done:
2032         /* Return the vendor specific reply to API */
2033         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2034         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2035         /* Always return DID_OK, bsg will send the vendor specific response
2036          * in this case only */
2037         sp->done(vha, sp, (DID_OK << 6));
2038
2039 }
2040
2041 /**
2042  * qla2x00_status_entry() - Process a Status IOCB entry.
2043  * @ha: SCSI driver HA context
2044  * @pkt: Entry pointer
2045  */
2046 static void
2047 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2048 {
2049         srb_t           *sp;
2050         fc_port_t       *fcport;
2051         struct scsi_cmnd *cp;
2052         sts_entry_t *sts;
2053         struct sts_entry_24xx *sts24;
2054         uint16_t        comp_status;
2055         uint16_t        scsi_status;
2056         uint16_t        ox_id;
2057         uint8_t         lscsi_status;
2058         int32_t         resid;
2059         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2060             fw_resid_len;
2061         uint8_t         *rsp_info, *sense_data;
2062         struct qla_hw_data *ha = vha->hw;
2063         uint32_t handle;
2064         uint16_t que;
2065         struct req_que *req;
2066         int logit = 1;
2067         int res = 0;
2068         uint16_t state_flags = 0;
2069         uint16_t retry_delay = 0;
2070
2071         sts = (sts_entry_t *) pkt;
2072         sts24 = (struct sts_entry_24xx *) pkt;
2073         if (IS_FWI2_CAPABLE(ha)) {
2074                 comp_status = le16_to_cpu(sts24->comp_status);
2075                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2076                 state_flags = le16_to_cpu(sts24->state_flags);
2077         } else {
2078                 comp_status = le16_to_cpu(sts->comp_status);
2079                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2080         }
2081         handle = (uint32_t) LSW(sts->handle);
2082         que = MSW(sts->handle);
2083         req = ha->req_q_map[que];
2084
2085         /* Check for invalid queue pointer */
2086         if (req == NULL ||
2087             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2088                 ql_dbg(ql_dbg_io, vha, 0x3059,
2089                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2090                     "que=%u.\n", sts->handle, req, que);
2091                 return;
2092         }
2093
2094         /* Validate handle. */
2095         if (handle < req->num_outstanding_cmds) {
2096                 sp = req->outstanding_cmds[handle];
2097                 if (!sp) {
2098                         ql_dbg(ql_dbg_io, vha, 0x3075,
2099                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2100                             __func__, vha->host_no, sts->handle);
2101                         return;
2102                 }
2103         } else {
2104                 ql_dbg(ql_dbg_io, vha, 0x3017,
2105                     "Invalid status handle, out of range (0x%x).\n",
2106                     sts->handle);
2107
2108                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2109                         if (IS_P3P_TYPE(ha))
2110                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2111                         else
2112                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2113                         qla2xxx_wake_dpc(vha);
2114                 }
2115                 return;
2116         }
2117
2118         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2119                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2120                 return;
2121         }
2122
2123         /* Task Management completion. */
2124         if (sp->type == SRB_TM_CMD) {
2125                 qla24xx_tm_iocb_entry(vha, req, pkt);
2126                 return;
2127         }
2128
2129         /* Fast path completion. */
2130         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2131                 qla2x00_process_completed_request(vha, req, handle);
2132
2133                 return;
2134         }
2135
2136         req->outstanding_cmds[handle] = NULL;
2137         cp = GET_CMD_SP(sp);
2138         if (cp == NULL) {
2139                 ql_dbg(ql_dbg_io, vha, 0x3018,
2140                     "Command already returned (0x%x/%p).\n",
2141                     sts->handle, sp);
2142
2143                 return;
2144         }
2145
2146         lscsi_status = scsi_status & STATUS_MASK;
2147
2148         fcport = sp->fcport;
2149
2150         ox_id = 0;
2151         sense_len = par_sense_len = rsp_info_len = resid_len =
2152             fw_resid_len = 0;
2153         if (IS_FWI2_CAPABLE(ha)) {
2154                 if (scsi_status & SS_SENSE_LEN_VALID)
2155                         sense_len = le32_to_cpu(sts24->sense_len);
2156                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2157                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2158                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2159                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2160                 if (comp_status == CS_DATA_UNDERRUN)
2161                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2162                 rsp_info = sts24->data;
2163                 sense_data = sts24->data;
2164                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2165                 ox_id = le16_to_cpu(sts24->ox_id);
2166                 par_sense_len = sizeof(sts24->data);
2167                 /* Valid values of the retry delay timer are 0x1-0xffef */
2168                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2169                         retry_delay = sts24->retry_delay;
2170         } else {
2171                 if (scsi_status & SS_SENSE_LEN_VALID)
2172                         sense_len = le16_to_cpu(sts->req_sense_length);
2173                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2174                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2175                 resid_len = le32_to_cpu(sts->residual_length);
2176                 rsp_info = sts->rsp_info;
2177                 sense_data = sts->req_sense_data;
2178                 par_sense_len = sizeof(sts->req_sense_data);
2179         }
2180
2181         /* Check for any FCP transport errors. */
2182         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2183                 /* Sense data lies beyond any FCP RESPONSE data. */
2184                 if (IS_FWI2_CAPABLE(ha)) {
2185                         sense_data += rsp_info_len;
2186                         par_sense_len -= rsp_info_len;
2187                 }
2188                 if (rsp_info_len > 3 && rsp_info[3]) {
2189                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2190                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2191                             rsp_info_len, rsp_info[3]);
2192
2193                         res = DID_BUS_BUSY << 16;
2194                         goto out;
2195                 }
2196         }
2197
2198         /* Check for overrun. */
2199         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2200             scsi_status & SS_RESIDUAL_OVER)
2201                 comp_status = CS_DATA_OVERRUN;
2202
2203         /*
2204          * Check retry_delay_timer value if we receive a busy or
2205          * queue full.
2206          */
2207         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2208             lscsi_status == SAM_STAT_BUSY)
2209                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2210
2211         /*
2212          * Based on Host and scsi status generate status code for Linux
2213          */
2214         switch (comp_status) {
2215         case CS_COMPLETE:
2216         case CS_QUEUE_FULL:
2217                 if (scsi_status == 0) {
2218                         res = DID_OK << 16;
2219                         break;
2220                 }
2221                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2222                         resid = resid_len;
2223                         scsi_set_resid(cp, resid);
2224
2225                         if (!lscsi_status &&
2226                             ((unsigned)(scsi_bufflen(cp) - resid) <
2227                              cp->underflow)) {
2228                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2229                                     "Mid-layer underflow "
2230                                     "detected (0x%x of 0x%x bytes).\n",
2231                                     resid, scsi_bufflen(cp));
2232
2233                                 res = DID_ERROR << 16;
2234                                 break;
2235                         }
2236                 }
2237                 res = DID_OK << 16 | lscsi_status;
2238
2239                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2240                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2241                             "QUEUE FULL detected.\n");
2242                         break;
2243                 }
2244                 logit = 0;
2245                 if (lscsi_status != SS_CHECK_CONDITION)
2246                         break;
2247
2248                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2249                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2250                         break;
2251
2252                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2253                     rsp, res);
2254                 break;
2255
2256         case CS_DATA_UNDERRUN:
2257                 /* Use F/W calculated residual length. */
2258                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2259                 scsi_set_resid(cp, resid);
2260                 if (scsi_status & SS_RESIDUAL_UNDER) {
2261                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2262                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2263                                     "Dropped frame(s) detected "
2264                                     "(0x%x of 0x%x bytes).\n",
2265                                     resid, scsi_bufflen(cp));
2266
2267                                 res = DID_ERROR << 16 | lscsi_status;
2268                                 goto check_scsi_status;
2269                         }
2270
2271                         if (!lscsi_status &&
2272                             ((unsigned)(scsi_bufflen(cp) - resid) <
2273                             cp->underflow)) {
2274                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2275                                     "Mid-layer underflow "
2276                                     "detected (0x%x of 0x%x bytes).\n",
2277                                     resid, scsi_bufflen(cp));
2278
2279                                 res = DID_ERROR << 16;
2280                                 break;
2281                         }
2282                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2283                             lscsi_status != SAM_STAT_BUSY) {
2284                         /*
2285                          * scsi status of task set and busy are considered to be
2286                          * task not completed.
2287                          */
2288
2289                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2290                             "Dropped frame(s) detected (0x%x "
2291                             "of 0x%x bytes).\n", resid,
2292                             scsi_bufflen(cp));
2293
2294                         res = DID_ERROR << 16 | lscsi_status;
2295                         goto check_scsi_status;
2296                 } else {
2297                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2298                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2299                             scsi_status, lscsi_status);
2300                 }
2301
2302                 res = DID_OK << 16 | lscsi_status;
2303                 logit = 0;
2304
2305 check_scsi_status:
2306                 /*
2307                  * Check to see if SCSI Status is non zero. If so report SCSI
2308                  * Status.
2309                  */
2310                 if (lscsi_status != 0) {
2311                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2312                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2313                                     "QUEUE FULL detected.\n");
2314                                 logit = 1;
2315                                 break;
2316                         }
2317                         if (lscsi_status != SS_CHECK_CONDITION)
2318                                 break;
2319
2320                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2321                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2322                                 break;
2323
2324                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2325                             sense_len, rsp, res);
2326                 }
2327                 break;
2328
2329         case CS_PORT_LOGGED_OUT:
2330         case CS_PORT_CONFIG_CHG:
2331         case CS_PORT_BUSY:
2332         case CS_INCOMPLETE:
2333         case CS_PORT_UNAVAILABLE:
2334         case CS_TIMEOUT:
2335         case CS_RESET:
2336
2337                 /*
2338                  * We are going to have the fc class block the rport
2339                  * while we try to recover so instruct the mid layer
2340                  * to requeue until the class decides how to handle this.
2341                  */
2342                 res = DID_TRANSPORT_DISRUPTED << 16;
2343
2344                 if (comp_status == CS_TIMEOUT) {
2345                         if (IS_FWI2_CAPABLE(ha))
2346                                 break;
2347                         else if ((le16_to_cpu(sts->status_flags) &
2348                             SF_LOGOUT_SENT) == 0)
2349                                 break;
2350                 }
2351
2352                 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2353                     "Port to be marked lost on fcport=%02x%02x%02x, current "
2354                     "port state= %s.\n", fcport->d_id.b.domain,
2355                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2356                     port_state_str[atomic_read(&fcport->state)]);
2357
2358                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2359                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2360                 break;
2361
2362         case CS_ABORTED:
2363                 res = DID_RESET << 16;
2364                 break;
2365
2366         case CS_DIF_ERROR:
2367                 logit = qla2x00_handle_dif_error(sp, sts24);
2368                 res = cp->result;
2369                 break;
2370
2371         case CS_TRANSPORT:
2372                 res = DID_ERROR << 16;
2373
2374                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2375                         break;
2376
2377                 if (state_flags & BIT_4)
2378                         scmd_printk(KERN_WARNING, cp,
2379                             "Unsupported device '%s' found.\n",
2380                             cp->device->vendor);
2381                 break;
2382
2383         default:
2384                 res = DID_ERROR << 16;
2385                 break;
2386         }
2387
2388 out:
2389         if (logit)
2390                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2391                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2392                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2393                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2394                     comp_status, scsi_status, res, vha->host_no,
2395                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2396                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2397                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2398                     resid_len, fw_resid_len, sp, cp);
2399
2400         if (rsp->status_srb == NULL)
2401                 sp->done(ha, sp, res);
2402 }
2403
2404 /**
2405  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2406  * @ha: SCSI driver HA context
2407  * @pkt: Entry pointer
2408  *
2409  * Extended sense data.
2410  */
2411 static void
2412 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2413 {
2414         uint8_t sense_sz = 0;
2415         struct qla_hw_data *ha = rsp->hw;
2416         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2417         srb_t *sp = rsp->status_srb;
2418         struct scsi_cmnd *cp;
2419         uint32_t sense_len;
2420         uint8_t *sense_ptr;
2421
2422         if (!sp || !GET_CMD_SENSE_LEN(sp))
2423                 return;
2424
2425         sense_len = GET_CMD_SENSE_LEN(sp);
2426         sense_ptr = GET_CMD_SENSE_PTR(sp);
2427
2428         cp = GET_CMD_SP(sp);
2429         if (cp == NULL) {
2430                 ql_log(ql_log_warn, vha, 0x3025,
2431                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2432
2433                 rsp->status_srb = NULL;
2434                 return;
2435         }
2436
2437         if (sense_len > sizeof(pkt->data))
2438                 sense_sz = sizeof(pkt->data);
2439         else
2440                 sense_sz = sense_len;
2441
2442         /* Move sense data. */
2443         if (IS_FWI2_CAPABLE(ha))
2444                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2445         memcpy(sense_ptr, pkt->data, sense_sz);
2446         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2447                 sense_ptr, sense_sz);
2448
2449         sense_len -= sense_sz;
2450         sense_ptr += sense_sz;
2451
2452         SET_CMD_SENSE_PTR(sp, sense_ptr);
2453         SET_CMD_SENSE_LEN(sp, sense_len);
2454
2455         /* Place command on done queue. */
2456         if (sense_len == 0) {
2457                 rsp->status_srb = NULL;
2458                 sp->done(ha, sp, cp->result);
2459         }
2460 }
2461
2462 /**
2463  * qla2x00_error_entry() - Process an error entry.
2464  * @ha: SCSI driver HA context
2465  * @pkt: Entry pointer
2466  */
2467 static void
2468 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2469 {
2470         srb_t *sp;
2471         struct qla_hw_data *ha = vha->hw;
2472         const char func[] = "ERROR-IOCB";
2473         uint16_t que = MSW(pkt->handle);
2474         struct req_que *req = NULL;
2475         int res = DID_ERROR << 16;
2476
2477         ql_dbg(ql_dbg_async, vha, 0x502a,
2478             "type of error status in response: 0x%x\n", pkt->entry_status);
2479
2480         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2481                 goto fatal;
2482
2483         req = ha->req_q_map[que];
2484
2485         if (pkt->entry_status & RF_BUSY)
2486                 res = DID_BUS_BUSY << 16;
2487
2488         if (pkt->entry_type == NOTIFY_ACK_TYPE &&
2489             pkt->handle == QLA_TGT_SKIP_HANDLE)
2490                 return;
2491
2492         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2493         if (sp) {
2494                 sp->done(ha, sp, res);
2495                 return;
2496         }
2497 fatal:
2498         ql_log(ql_log_warn, vha, 0x5030,
2499             "Error entry - invalid handle/queue (%04x).\n", que);
2500 }
2501
2502 /**
2503  * qla24xx_mbx_completion() - Process mailbox command completions.
2504  * @ha: SCSI driver HA context
2505  * @mb0: Mailbox0 register
2506  */
2507 static void
2508 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2509 {
2510         uint16_t        cnt;
2511         uint32_t        mboxes;
2512         uint16_t __iomem *wptr;
2513         struct qla_hw_data *ha = vha->hw;
2514         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2515
2516         /* Read all mbox registers? */
2517         WARN_ON_ONCE(ha->mbx_count > 32);
2518         mboxes = (1ULL << ha->mbx_count) - 1;
2519         if (!ha->mcp)
2520                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2521         else
2522                 mboxes = ha->mcp->in_mb;
2523
2524         /* Load return mailbox registers. */
2525         ha->flags.mbox_int = 1;
2526         ha->mailbox_out[0] = mb0;
2527         mboxes >>= 1;
2528         wptr = (uint16_t __iomem *)&reg->mailbox1;
2529
2530         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2531                 if (mboxes & BIT_0)
2532                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2533
2534                 mboxes >>= 1;
2535                 wptr++;
2536         }
2537 }
2538
2539 static void
2540 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2541         struct abort_entry_24xx *pkt)
2542 {
2543         const char func[] = "ABT_IOCB";
2544         srb_t *sp;
2545         struct srb_iocb *abt;
2546
2547         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2548         if (!sp)
2549                 return;
2550
2551         abt = &sp->u.iocb_cmd;
2552         abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2553         sp->done(vha, sp, 0);
2554 }
2555
2556 /**
2557  * qla24xx_process_response_queue() - Process response queue entries.
2558  * @ha: SCSI driver HA context
2559  */
2560 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2561         struct rsp_que *rsp)
2562 {
2563         struct sts_entry_24xx *pkt;
2564         struct qla_hw_data *ha = vha->hw;
2565
2566         if (!vha->flags.online)
2567                 return;
2568
2569         if (rsp->msix && rsp->msix->cpuid != smp_processor_id()) {
2570                 /* if kernel does not notify qla of IRQ's CPU change,
2571                  * then set it here.
2572                  */
2573                 rsp->msix->cpuid = smp_processor_id();
2574                 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid;
2575         }
2576
2577         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2578                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2579
2580                 rsp->ring_index++;
2581                 if (rsp->ring_index == rsp->length) {
2582                         rsp->ring_index = 0;
2583                         rsp->ring_ptr = rsp->ring;
2584                 } else {
2585                         rsp->ring_ptr++;
2586                 }
2587
2588                 if (pkt->entry_status != 0) {
2589                         qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2590
2591                         if (qlt_24xx_process_response_error(vha, pkt))
2592                                 goto process_err;
2593
2594                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2595                         wmb();
2596                         continue;
2597                 }
2598 process_err:
2599
2600                 switch (pkt->entry_type) {
2601                 case STATUS_TYPE:
2602                         qla2x00_status_entry(vha, rsp, pkt);
2603                         break;
2604                 case STATUS_CONT_TYPE:
2605                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2606                         break;
2607                 case VP_RPT_ID_IOCB_TYPE:
2608                         qla24xx_report_id_acquisition(vha,
2609                             (struct vp_rpt_id_entry_24xx *)pkt);
2610                         break;
2611                 case LOGINOUT_PORT_IOCB_TYPE:
2612                         qla24xx_logio_entry(vha, rsp->req,
2613                             (struct logio_entry_24xx *)pkt);
2614                         break;
2615                 case CT_IOCB_TYPE:
2616                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2617                         break;
2618                 case ELS_IOCB_TYPE:
2619                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2620                         break;
2621                 case ABTS_RECV_24XX:
2622                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2623                                 /* ensure that the ATIO queue is empty */
2624                                 qlt_handle_abts_recv(vha, (response_t *)pkt);
2625                                 break;
2626                         } else {
2627                                 /* drop through */
2628                                 qlt_24xx_process_atio_queue(vha, 1);
2629                         }
2630                 case ABTS_RESP_24XX:
2631                 case CTIO_TYPE7:
2632                 case NOTIFY_ACK_TYPE:
2633                 case CTIO_CRC2:
2634                         qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2635                         break;
2636                 case MARKER_TYPE:
2637                         /* Do nothing in this case, this check is to prevent it
2638                          * from falling into default case
2639                          */
2640                         break;
2641                 case ABORT_IOCB_TYPE:
2642                         qla24xx_abort_iocb_entry(vha, rsp->req,
2643                             (struct abort_entry_24xx *)pkt);
2644                         break;
2645                 default:
2646                         /* Type Not Supported. */
2647                         ql_dbg(ql_dbg_async, vha, 0x5042,
2648                             "Received unknown response pkt type %x "
2649                             "entry status=%x.\n",
2650                             pkt->entry_type, pkt->entry_status);
2651                         break;
2652                 }
2653                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2654                 wmb();
2655         }
2656
2657         /* Adjust ring index */
2658         if (IS_P3P_TYPE(ha)) {
2659                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2660                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2661         } else
2662                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2663 }
2664
2665 static void
2666 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2667 {
2668         int rval;
2669         uint32_t cnt;
2670         struct qla_hw_data *ha = vha->hw;
2671         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2672
2673         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2674             !IS_QLA27XX(ha))
2675                 return;
2676
2677         rval = QLA_SUCCESS;
2678         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2679         RD_REG_DWORD(&reg->iobase_addr);
2680         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2681         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2682             rval == QLA_SUCCESS; cnt--) {
2683                 if (cnt) {
2684                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2685                         udelay(10);
2686                 } else
2687                         rval = QLA_FUNCTION_TIMEOUT;
2688         }
2689         if (rval == QLA_SUCCESS)
2690                 goto next_test;
2691
2692         rval = QLA_SUCCESS;
2693         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2694         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2695             rval == QLA_SUCCESS; cnt--) {
2696                 if (cnt) {
2697                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2698                         udelay(10);
2699                 } else
2700                         rval = QLA_FUNCTION_TIMEOUT;
2701         }
2702         if (rval != QLA_SUCCESS)
2703                 goto done;
2704
2705 next_test:
2706         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2707                 ql_log(ql_log_info, vha, 0x504c,
2708                     "Additional code -- 0x55AA.\n");
2709
2710 done:
2711         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2712         RD_REG_DWORD(&reg->iobase_window);
2713 }
2714
2715 /**
2716  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2717  * @irq:
2718  * @dev_id: SCSI driver HA context
2719  *
2720  * Called by system whenever the host adapter generates an interrupt.
2721  *
2722  * Returns handled flag.
2723  */
2724 irqreturn_t
2725 qla24xx_intr_handler(int irq, void *dev_id)
2726 {
2727         scsi_qla_host_t *vha;
2728         struct qla_hw_data *ha;
2729         struct device_reg_24xx __iomem *reg;
2730         int             status;
2731         unsigned long   iter;
2732         uint32_t        stat;
2733         uint32_t        hccr;
2734         uint16_t        mb[8];
2735         struct rsp_que *rsp;
2736         unsigned long   flags;
2737
2738         rsp = (struct rsp_que *) dev_id;
2739         if (!rsp) {
2740                 ql_log(ql_log_info, NULL, 0x5059,
2741                     "%s: NULL response queue pointer.\n", __func__);
2742                 return IRQ_NONE;
2743         }
2744
2745         ha = rsp->hw;
2746         reg = &ha->iobase->isp24;
2747         status = 0;
2748
2749         if (unlikely(pci_channel_offline(ha->pdev)))
2750                 return IRQ_HANDLED;
2751
2752         spin_lock_irqsave(&ha->hardware_lock, flags);
2753         vha = pci_get_drvdata(ha->pdev);
2754         for (iter = 50; iter--; ) {
2755                 stat = RD_REG_DWORD(&reg->host_status);
2756                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2757                         break;
2758                 if (stat & HSRX_RISC_PAUSED) {
2759                         if (unlikely(pci_channel_offline(ha->pdev)))
2760                                 break;
2761
2762                         hccr = RD_REG_DWORD(&reg->hccr);
2763
2764                         ql_log(ql_log_warn, vha, 0x504b,
2765                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2766                             hccr);
2767
2768                         qla2xxx_check_risc_status(vha);
2769
2770                         ha->isp_ops->fw_dump(vha, 1);
2771                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2772                         break;
2773                 } else if ((stat & HSRX_RISC_INT) == 0)
2774                         break;
2775
2776                 switch (stat & 0xff) {
2777                 case INTR_ROM_MB_SUCCESS:
2778                 case INTR_ROM_MB_FAILED:
2779                 case INTR_MB_SUCCESS:
2780                 case INTR_MB_FAILED:
2781                         qla24xx_mbx_completion(vha, MSW(stat));
2782                         status |= MBX_INTERRUPT;
2783
2784                         break;
2785                 case INTR_ASYNC_EVENT:
2786                         mb[0] = MSW(stat);
2787                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2788                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2789                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2790                         qla2x00_async_event(vha, rsp, mb);
2791                         break;
2792                 case INTR_RSP_QUE_UPDATE:
2793                 case INTR_RSP_QUE_UPDATE_83XX:
2794                         qla24xx_process_response_queue(vha, rsp);
2795                         break;
2796                 case INTR_ATIO_QUE_UPDATE:{
2797                         unsigned long flags2;
2798                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2799                         qlt_24xx_process_atio_queue(vha, 1);
2800                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2801                         break;
2802                 }
2803                 case INTR_ATIO_RSP_QUE_UPDATE: {
2804                         unsigned long flags2;
2805                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2806                         qlt_24xx_process_atio_queue(vha, 1);
2807                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2808
2809                         qla24xx_process_response_queue(vha, rsp);
2810                         break;
2811                 }
2812                 default:
2813                         ql_dbg(ql_dbg_async, vha, 0x504f,
2814                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
2815                         break;
2816                 }
2817                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2818                 RD_REG_DWORD_RELAXED(&reg->hccr);
2819                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2820                         ndelay(3500);
2821         }
2822         qla2x00_handle_mbx_completion(ha, status);
2823         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2824
2825         return IRQ_HANDLED;
2826 }
2827
2828 static irqreturn_t
2829 qla24xx_msix_rsp_q(int irq, void *dev_id)
2830 {
2831         struct qla_hw_data *ha;
2832         struct rsp_que *rsp;
2833         struct device_reg_24xx __iomem *reg;
2834         struct scsi_qla_host *vha;
2835         unsigned long flags;
2836         uint32_t stat = 0;
2837
2838         rsp = (struct rsp_que *) dev_id;
2839         if (!rsp) {
2840                 ql_log(ql_log_info, NULL, 0x505a,
2841                     "%s: NULL response queue pointer.\n", __func__);
2842                 return IRQ_NONE;
2843         }
2844         ha = rsp->hw;
2845         reg = &ha->iobase->isp24;
2846
2847         spin_lock_irqsave(&ha->hardware_lock, flags);
2848
2849         vha = pci_get_drvdata(ha->pdev);
2850         /*
2851          * Use host_status register to check to PCI disconnection before we
2852          * we process the response queue.
2853          */
2854         stat = RD_REG_DWORD(&reg->host_status);
2855         if (qla2x00_check_reg32_for_disconnect(vha, stat))
2856                 goto out;
2857         qla24xx_process_response_queue(vha, rsp);
2858         if (!ha->flags.disable_msix_handshake) {
2859                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2860                 RD_REG_DWORD_RELAXED(&reg->hccr);
2861         }
2862 out:
2863         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2864
2865         return IRQ_HANDLED;
2866 }
2867
2868 static irqreturn_t
2869 qla25xx_msix_rsp_q(int irq, void *dev_id)
2870 {
2871         struct qla_hw_data *ha;
2872         scsi_qla_host_t *vha;
2873         struct rsp_que *rsp;
2874         struct device_reg_24xx __iomem *reg;
2875         unsigned long flags;
2876         uint32_t hccr = 0;
2877
2878         rsp = (struct rsp_que *) dev_id;
2879         if (!rsp) {
2880                 ql_log(ql_log_info, NULL, 0x505b,
2881                     "%s: NULL response queue pointer.\n", __func__);
2882                 return IRQ_NONE;
2883         }
2884         ha = rsp->hw;
2885         vha = pci_get_drvdata(ha->pdev);
2886
2887         /* Clear the interrupt, if enabled, for this response queue */
2888         if (!ha->flags.disable_msix_handshake) {
2889                 reg = &ha->iobase->isp24;
2890                 spin_lock_irqsave(&ha->hardware_lock, flags);
2891                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2892                 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2893                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2894         }
2895         if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2896                 goto out;
2897         queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2898
2899 out:
2900         return IRQ_HANDLED;
2901 }
2902
2903 static irqreturn_t
2904 qla24xx_msix_default(int irq, void *dev_id)
2905 {
2906         scsi_qla_host_t *vha;
2907         struct qla_hw_data *ha;
2908         struct rsp_que *rsp;
2909         struct device_reg_24xx __iomem *reg;
2910         int             status;
2911         uint32_t        stat;
2912         uint32_t        hccr;
2913         uint16_t        mb[8];
2914         unsigned long flags;
2915
2916         rsp = (struct rsp_que *) dev_id;
2917         if (!rsp) {
2918                 ql_log(ql_log_info, NULL, 0x505c,
2919                     "%s: NULL response queue pointer.\n", __func__);
2920                 return IRQ_NONE;
2921         }
2922         ha = rsp->hw;
2923         reg = &ha->iobase->isp24;
2924         status = 0;
2925
2926         spin_lock_irqsave(&ha->hardware_lock, flags);
2927         vha = pci_get_drvdata(ha->pdev);
2928         do {
2929                 stat = RD_REG_DWORD(&reg->host_status);
2930                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2931                         break;
2932                 if (stat & HSRX_RISC_PAUSED) {
2933                         if (unlikely(pci_channel_offline(ha->pdev)))
2934                                 break;
2935
2936                         hccr = RD_REG_DWORD(&reg->hccr);
2937
2938                         ql_log(ql_log_info, vha, 0x5050,
2939                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2940                             hccr);
2941
2942                         qla2xxx_check_risc_status(vha);
2943
2944                         ha->isp_ops->fw_dump(vha, 1);
2945                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2946                         break;
2947                 } else if ((stat & HSRX_RISC_INT) == 0)
2948                         break;
2949
2950                 switch (stat & 0xff) {
2951                 case INTR_ROM_MB_SUCCESS:
2952                 case INTR_ROM_MB_FAILED:
2953                 case INTR_MB_SUCCESS:
2954                 case INTR_MB_FAILED:
2955                         qla24xx_mbx_completion(vha, MSW(stat));
2956                         status |= MBX_INTERRUPT;
2957
2958                         break;
2959                 case INTR_ASYNC_EVENT:
2960                         mb[0] = MSW(stat);
2961                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2962                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2963                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2964                         qla2x00_async_event(vha, rsp, mb);
2965                         break;
2966                 case INTR_RSP_QUE_UPDATE:
2967                 case INTR_RSP_QUE_UPDATE_83XX:
2968                         qla24xx_process_response_queue(vha, rsp);
2969                         break;
2970                 case INTR_ATIO_QUE_UPDATE:{
2971                         unsigned long flags2;
2972                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2973                         qlt_24xx_process_atio_queue(vha, 1);
2974                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2975                         break;
2976                 }
2977                 case INTR_ATIO_RSP_QUE_UPDATE: {
2978                         unsigned long flags2;
2979                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2980                         qlt_24xx_process_atio_queue(vha, 1);
2981                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2982
2983                         qla24xx_process_response_queue(vha, rsp);
2984                         break;
2985                 }
2986                 default:
2987                         ql_dbg(ql_dbg_async, vha, 0x5051,
2988                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
2989                         break;
2990                 }
2991                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2992         } while (0);
2993         qla2x00_handle_mbx_completion(ha, status);
2994         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2995
2996         return IRQ_HANDLED;
2997 }
2998
2999 /* Interrupt handling helpers. */
3000
3001 struct qla_init_msix_entry {
3002         const char *name;
3003         irq_handler_t handler;
3004 };
3005
3006 static struct qla_init_msix_entry msix_entries[3] = {
3007         { "qla2xxx (default)", qla24xx_msix_default },
3008         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3009         { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
3010 };
3011
3012 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
3013         { "qla2xxx (default)", qla82xx_msix_default },
3014         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3015 };
3016
3017 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
3018         { "qla2xxx (default)", qla24xx_msix_default },
3019         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3020         { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3021 };
3022
3023 static void
3024 qla24xx_disable_msix(struct qla_hw_data *ha)
3025 {
3026         int i;
3027         struct qla_msix_entry *qentry;
3028         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3029
3030         for (i = 0; i < ha->msix_count; i++) {
3031                 qentry = &ha->msix_entries[i];
3032                 if (qentry->have_irq) {
3033                         /* un-register irq cpu affinity notification */
3034                         irq_set_affinity_notifier(qentry->vector, NULL);
3035                         free_irq(qentry->vector, qentry->rsp);
3036                 }
3037         }
3038         pci_disable_msix(ha->pdev);
3039         kfree(ha->msix_entries);
3040         ha->msix_entries = NULL;
3041         ha->flags.msix_enabled = 0;
3042         ql_dbg(ql_dbg_init, vha, 0x0042,
3043             "Disabled the MSI.\n");
3044 }
3045
3046 static int
3047 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3048 {
3049 #define MIN_MSIX_COUNT  2
3050 #define ATIO_VECTOR     2
3051         int i, ret;
3052         struct msix_entry *entries;
3053         struct qla_msix_entry *qentry;
3054         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3055
3056         entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3057                         GFP_KERNEL);
3058         if (!entries) {
3059                 ql_log(ql_log_warn, vha, 0x00bc,
3060                     "Failed to allocate memory for msix_entry.\n");
3061                 return -ENOMEM;
3062         }
3063
3064         for (i = 0; i < ha->msix_count; i++)
3065                 entries[i].entry = i;
3066
3067         ret = pci_enable_msix_range(ha->pdev,
3068                                     entries, MIN_MSIX_COUNT, ha->msix_count);
3069         if (ret < 0) {
3070                 ql_log(ql_log_fatal, vha, 0x00c7,
3071                     "MSI-X: Failed to enable support, "
3072                     "giving   up -- %d/%d.\n",
3073                     ha->msix_count, ret);
3074                 goto msix_out;
3075         } else if (ret < ha->msix_count) {
3076                 ql_log(ql_log_warn, vha, 0x00c6,
3077                     "MSI-X: Failed to enable support "
3078                     "-- %d/%d\n Retry with %d vectors.\n",
3079                     ha->msix_count, ret, ret);
3080                 ha->msix_count = ret;
3081                 ha->max_rsp_queues = ha->msix_count - 1;
3082         }
3083         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3084                                 ha->msix_count, GFP_KERNEL);
3085         if (!ha->msix_entries) {
3086                 ql_log(ql_log_fatal, vha, 0x00c8,
3087                     "Failed to allocate memory for ha->msix_entries.\n");
3088                 ret = -ENOMEM;
3089                 goto free_irqs;
3090         }
3091         ha->flags.msix_enabled = 1;
3092
3093         for (i = 0; i < ha->msix_count; i++) {
3094                 qentry = &ha->msix_entries[i];
3095                 qentry->vector = entries[i].vector;
3096                 qentry->entry = entries[i].entry;
3097                 qentry->have_irq = 0;
3098                 qentry->rsp = NULL;
3099                 qentry->irq_notify.notify  = qla_irq_affinity_notify;
3100                 qentry->irq_notify.release = qla_irq_affinity_release;
3101                 qentry->cpuid = -1;
3102         }
3103
3104         /* Enable MSI-X vectors for the base queue */
3105         for (i = 0; i < 2; i++) {
3106                 qentry = &ha->msix_entries[i];
3107                 qentry->rsp = rsp;
3108                 rsp->msix = qentry;
3109                 if (IS_P3P_TYPE(ha))
3110                         ret = request_irq(qentry->vector,
3111                                 qla82xx_msix_entries[i].handler,
3112                                 0, qla82xx_msix_entries[i].name, rsp);
3113                 else
3114                         ret = request_irq(qentry->vector,
3115                                 msix_entries[i].handler,
3116                                 0, msix_entries[i].name, rsp);
3117                 if (ret)
3118                         goto msix_register_fail;
3119                 qentry->have_irq = 1;
3120
3121                 /* Register for CPU affinity notification. */
3122                 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
3123
3124                 /* Schedule work (ie. trigger a notification) to read cpu
3125                  * mask for this specific irq.
3126                  * kref_get is required because
3127                 * irq_affinity_notify() will do
3128                 * kref_put().
3129                 */
3130                 kref_get(&qentry->irq_notify.kref);
3131                 schedule_work(&qentry->irq_notify.work);
3132         }
3133
3134         /*
3135          * If target mode is enable, also request the vector for the ATIO
3136          * queue.
3137          */
3138         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3139                 qentry = &ha->msix_entries[ATIO_VECTOR];
3140                 qentry->rsp = rsp;
3141                 rsp->msix = qentry;
3142                 ret = request_irq(qentry->vector,
3143                         qla83xx_msix_entries[ATIO_VECTOR].handler,
3144                         0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3145                 qentry->have_irq = 1;
3146         }
3147
3148 msix_register_fail:
3149         if (ret) {
3150                 ql_log(ql_log_fatal, vha, 0x00cb,
3151                     "MSI-X: unable to register handler -- %x/%d.\n",
3152                     qentry->vector, ret);
3153                 qla24xx_disable_msix(ha);
3154                 ha->mqenable = 0;
3155                 goto msix_out;
3156         }
3157
3158         /* Enable MSI-X vector for response queue update for queue 0 */
3159         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3160                 if (ha->msixbase && ha->mqiobase &&
3161                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3162                         ha->mqenable = 1;
3163         } else
3164                 if (ha->mqiobase
3165                     && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3166                         ha->mqenable = 1;
3167         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3168             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3169             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3170         ql_dbg(ql_dbg_init, vha, 0x0055,
3171             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3172             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3173
3174 msix_out:
3175         kfree(entries);
3176         return ret;
3177
3178 free_irqs:
3179         pci_free_irq_vectors(ha->pdev);
3180         goto msix_out;
3181 }
3182
3183 int
3184 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3185 {
3186         int ret = QLA_FUNCTION_FAILED;
3187         device_reg_t *reg = ha->iobase;
3188         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3189
3190         /* If possible, enable MSI-X. */
3191         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3192             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3193             !IS_QLA27XX(ha))
3194                 goto skip_msi;
3195
3196         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3197                 (ha->pdev->subsystem_device == 0x7040 ||
3198                 ha->pdev->subsystem_device == 0x7041 ||
3199                 ha->pdev->subsystem_device == 0x1705)) {
3200                 ql_log(ql_log_warn, vha, 0x0034,
3201                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3202                         ha->pdev->subsystem_vendor,
3203                         ha->pdev->subsystem_device);
3204                 goto skip_msi;
3205         }
3206
3207         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3208                 ql_log(ql_log_warn, vha, 0x0035,
3209                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3210                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3211                 goto skip_msix;
3212         }
3213
3214         ret = qla24xx_enable_msix(ha, rsp);
3215         if (!ret) {
3216                 ql_dbg(ql_dbg_init, vha, 0x0036,
3217                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3218                     ha->chip_revision, ha->fw_attributes);
3219                 goto clear_risc_ints;
3220         }
3221
3222 skip_msix:
3223
3224         ql_log(ql_log_info, vha, 0x0037,
3225             "Falling back-to MSI mode -%d.\n", ret);
3226
3227         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3228             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3229             !IS_QLA27XX(ha))
3230                 goto skip_msi;
3231
3232         ret = pci_enable_msi(ha->pdev);
3233         if (!ret) {
3234                 ql_dbg(ql_dbg_init, vha, 0x0038,
3235                     "MSI: Enabled.\n");
3236                 ha->flags.msi_enabled = 1;
3237         } else
3238                 ql_log(ql_log_warn, vha, 0x0039,
3239                     "Falling back-to INTa mode -- %d.\n", ret);
3240 skip_msi:
3241
3242         /* Skip INTx on ISP82xx. */
3243         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3244                 return QLA_FUNCTION_FAILED;
3245
3246         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3247             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3248             QLA2XXX_DRIVER_NAME, rsp);
3249         if (ret) {
3250                 ql_log(ql_log_warn, vha, 0x003a,
3251                     "Failed to reserve interrupt %d already in use.\n",
3252                     ha->pdev->irq);
3253                 goto fail;
3254         } else if (!ha->flags.msi_enabled) {
3255                 ql_dbg(ql_dbg_init, vha, 0x0125,
3256                     "INTa mode: Enabled.\n");
3257                 ha->flags.mr_intr_valid = 1;
3258         }
3259
3260 clear_risc_ints:
3261         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3262                 goto fail;
3263
3264         spin_lock_irq(&ha->hardware_lock);
3265         WRT_REG_WORD(&reg->isp.semaphore, 0);
3266         spin_unlock_irq(&ha->hardware_lock);
3267
3268 fail:
3269         return ret;
3270 }
3271
3272 void
3273 qla2x00_free_irqs(scsi_qla_host_t *vha)
3274 {
3275         struct qla_hw_data *ha = vha->hw;
3276         struct rsp_que *rsp;
3277
3278         /*
3279          * We need to check that ha->rsp_q_map is valid in case we are called
3280          * from a probe failure context.
3281          */
3282         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3283                 return;
3284         rsp = ha->rsp_q_map[0];
3285
3286         if (ha->flags.msix_enabled)
3287                 qla24xx_disable_msix(ha);
3288         else if (ha->flags.msi_enabled) {
3289                 free_irq(ha->pdev->irq, rsp);
3290                 pci_disable_msi(ha->pdev);
3291         } else
3292                 free_irq(ha->pdev->irq, rsp);
3293 }
3294
3295
3296 int qla25xx_request_irq(struct rsp_que *rsp)
3297 {
3298         struct qla_hw_data *ha = rsp->hw;
3299         struct qla_init_msix_entry *intr = &msix_entries[2];
3300         struct qla_msix_entry *msix = rsp->msix;
3301         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3302         int ret;
3303
3304         ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3305         if (ret) {
3306                 ql_log(ql_log_fatal, vha, 0x00e6,
3307                     "MSI-X: Unable to register handler -- %x/%d.\n",
3308                     msix->vector, ret);
3309                 return ret;
3310         }
3311         msix->have_irq = 1;
3312         msix->rsp = rsp;
3313         return ret;
3314 }
3315
3316
3317 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */
3318 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
3319         const cpumask_t *mask)
3320 {
3321         struct qla_msix_entry *e =
3322                 container_of(notify, struct qla_msix_entry, irq_notify);
3323         struct qla_hw_data *ha;
3324         struct scsi_qla_host *base_vha;
3325
3326         /* user is recommended to set mask to just 1 cpu */
3327         e->cpuid = cpumask_first(mask);
3328
3329         ha = e->rsp->hw;
3330         base_vha = pci_get_drvdata(ha->pdev);
3331
3332         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3333             "%s: host %ld : vector %d cpu %d \n", __func__,
3334             base_vha->host_no, e->vector, e->cpuid);
3335
3336         if (e->have_irq) {
3337                 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) &&
3338                     (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) {
3339                         ha->tgt.rspq_vector_cpuid = e->cpuid;
3340                         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3341                             "%s: host%ld: rspq vector %d cpu %d  runtime change\n",
3342                             __func__, base_vha->host_no, e->vector, e->cpuid);
3343                 }
3344         }
3345 }
3346
3347 static void qla_irq_affinity_release(struct kref *ref)
3348 {
3349         struct irq_affinity_notify *notify =
3350                 container_of(ref, struct irq_affinity_notify, kref);
3351         struct qla_msix_entry *e =
3352                 container_of(notify, struct qla_msix_entry, irq_notify);
3353         struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
3354
3355         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3356             "%s: host%ld: vector %d cpu %d \n", __func__,
3357             base_vha->host_no, e->vector, e->cpuid);
3358 }