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                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1622                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1623                             "Async-%s error - hdl=%x not enough response(%d).\n",
1624                             type, sp->handle, sts->rsp_data_len);
1625                 } else if (sts->data[3]) {
1626                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1627                             "Async-%s error - hdl=%x response(%x).\n",
1628                             type, sp->handle, sts->data[3]);
1629                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1630                 }
1631         }
1632
1633         if (iocb->u.tmf.data != QLA_SUCCESS)
1634                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1635                     (uint8_t *)sts, sizeof(*sts));
1636
1637         sp->done(vha, sp, 0);
1638 }
1639
1640 /**
1641  * qla2x00_process_response_queue() - Process response queue entries.
1642  * @ha: SCSI driver HA context
1643  */
1644 void
1645 qla2x00_process_response_queue(struct rsp_que *rsp)
1646 {
1647         struct scsi_qla_host *vha;
1648         struct qla_hw_data *ha = rsp->hw;
1649         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1650         sts_entry_t     *pkt;
1651         uint16_t        handle_cnt;
1652         uint16_t        cnt;
1653
1654         vha = pci_get_drvdata(ha->pdev);
1655
1656         if (!vha->flags.online)
1657                 return;
1658
1659         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1660                 pkt = (sts_entry_t *)rsp->ring_ptr;
1661
1662                 rsp->ring_index++;
1663                 if (rsp->ring_index == rsp->length) {
1664                         rsp->ring_index = 0;
1665                         rsp->ring_ptr = rsp->ring;
1666                 } else {
1667                         rsp->ring_ptr++;
1668                 }
1669
1670                 if (pkt->entry_status != 0) {
1671                         qla2x00_error_entry(vha, rsp, pkt);
1672                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1673                         wmb();
1674                         continue;
1675                 }
1676
1677                 switch (pkt->entry_type) {
1678                 case STATUS_TYPE:
1679                         qla2x00_status_entry(vha, rsp, pkt);
1680                         break;
1681                 case STATUS_TYPE_21:
1682                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1683                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1684                                 qla2x00_process_completed_request(vha, rsp->req,
1685                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1686                         }
1687                         break;
1688                 case STATUS_TYPE_22:
1689                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1690                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1691                                 qla2x00_process_completed_request(vha, rsp->req,
1692                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1693                         }
1694                         break;
1695                 case STATUS_CONT_TYPE:
1696                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1697                         break;
1698                 case MBX_IOCB_TYPE:
1699                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1700                             (struct mbx_entry *)pkt);
1701                         break;
1702                 case CT_IOCB_TYPE:
1703                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1704                         break;
1705                 default:
1706                         /* Type Not Supported. */
1707                         ql_log(ql_log_warn, vha, 0x504a,
1708                             "Received unknown response pkt type %x "
1709                             "entry status=%x.\n",
1710                             pkt->entry_type, pkt->entry_status);
1711                         break;
1712                 }
1713                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1714                 wmb();
1715         }
1716
1717         /* Adjust ring index */
1718         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1719 }
1720
1721 static inline void
1722 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1723                      uint32_t sense_len, struct rsp_que *rsp, int res)
1724 {
1725         struct scsi_qla_host *vha = sp->fcport->vha;
1726         struct scsi_cmnd *cp = GET_CMD_SP(sp);
1727         uint32_t track_sense_len;
1728
1729         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1730                 sense_len = SCSI_SENSE_BUFFERSIZE;
1731
1732         SET_CMD_SENSE_LEN(sp, sense_len);
1733         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1734         track_sense_len = sense_len;
1735
1736         if (sense_len > par_sense_len)
1737                 sense_len = par_sense_len;
1738
1739         memcpy(cp->sense_buffer, sense_data, sense_len);
1740
1741         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1742         track_sense_len -= sense_len;
1743         SET_CMD_SENSE_LEN(sp, track_sense_len);
1744
1745         if (track_sense_len != 0) {
1746                 rsp->status_srb = sp;
1747                 cp->result = res;
1748         }
1749
1750         if (sense_len) {
1751                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1752                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1753                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1754                     cp);
1755                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1756                     cp->sense_buffer, sense_len);
1757         }
1758 }
1759
1760 struct scsi_dif_tuple {
1761         __be16 guard;       /* Checksum */
1762         __be16 app_tag;         /* APPL identifier */
1763         __be32 ref_tag;         /* Target LBA or indirect LBA */
1764 };
1765
1766 /*
1767  * Checks the guard or meta-data for the type of error
1768  * detected by the HBA. In case of errors, we set the
1769  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1770  * to indicate to the kernel that the HBA detected error.
1771  */
1772 static inline int
1773 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1774 {
1775         struct scsi_qla_host *vha = sp->fcport->vha;
1776         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1777         uint8_t         *ap = &sts24->data[12];
1778         uint8_t         *ep = &sts24->data[20];
1779         uint32_t        e_ref_tag, a_ref_tag;
1780         uint16_t        e_app_tag, a_app_tag;
1781         uint16_t        e_guard, a_guard;
1782
1783         /*
1784          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1785          * would make guard field appear at offset 2
1786          */
1787         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
1788         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1789         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1790         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
1791         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1792         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1793
1794         ql_dbg(ql_dbg_io, vha, 0x3023,
1795             "iocb(s) %p Returned STATUS.\n", sts24);
1796
1797         ql_dbg(ql_dbg_io, vha, 0x3024,
1798             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1799             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1800             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1801             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1802             a_app_tag, e_app_tag, a_guard, e_guard);
1803
1804         /*
1805          * Ignore sector if:
1806          * For type     3: ref & app tag is all 'f's
1807          * For type 0,1,2: app tag is all 'f's
1808          */
1809         if ((a_app_tag == 0xffff) &&
1810             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1811              (a_ref_tag == 0xffffffff))) {
1812                 uint32_t blocks_done, resid;
1813                 sector_t lba_s = scsi_get_lba(cmd);
1814
1815                 /* 2TB boundary case covered automatically with this */
1816                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1817
1818                 resid = scsi_bufflen(cmd) - (blocks_done *
1819                     cmd->device->sector_size);
1820
1821                 scsi_set_resid(cmd, resid);
1822                 cmd->result = DID_OK << 16;
1823
1824                 /* Update protection tag */
1825                 if (scsi_prot_sg_count(cmd)) {
1826                         uint32_t i, j = 0, k = 0, num_ent;
1827                         struct scatterlist *sg;
1828                         struct t10_pi_tuple *spt;
1829
1830                         /* Patch the corresponding protection tags */
1831                         scsi_for_each_prot_sg(cmd, sg,
1832                             scsi_prot_sg_count(cmd), i) {
1833                                 num_ent = sg_dma_len(sg) / 8;
1834                                 if (k + num_ent < blocks_done) {
1835                                         k += num_ent;
1836                                         continue;
1837                                 }
1838                                 j = blocks_done - k - 1;
1839                                 k = blocks_done;
1840                                 break;
1841                         }
1842
1843                         if (k != blocks_done) {
1844                                 ql_log(ql_log_warn, vha, 0x302f,
1845                                     "unexpected tag values tag:lba=%x:%llx)\n",
1846                                     e_ref_tag, (unsigned long long)lba_s);
1847                                 return 1;
1848                         }
1849
1850                         spt = page_address(sg_page(sg)) + sg->offset;
1851                         spt += j;
1852
1853                         spt->app_tag = 0xffff;
1854                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1855                                 spt->ref_tag = 0xffffffff;
1856                 }
1857
1858                 return 0;
1859         }
1860
1861         /* check guard */
1862         if (e_guard != a_guard) {
1863                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1864                     0x10, 0x1);
1865                 set_driver_byte(cmd, DRIVER_SENSE);
1866                 set_host_byte(cmd, DID_ABORT);
1867                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1868                 return 1;
1869         }
1870
1871         /* check ref tag */
1872         if (e_ref_tag != a_ref_tag) {
1873                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1874                     0x10, 0x3);
1875                 set_driver_byte(cmd, DRIVER_SENSE);
1876                 set_host_byte(cmd, DID_ABORT);
1877                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1878                 return 1;
1879         }
1880
1881         /* check appl tag */
1882         if (e_app_tag != a_app_tag) {
1883                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1884                     0x10, 0x2);
1885                 set_driver_byte(cmd, DRIVER_SENSE);
1886                 set_host_byte(cmd, DID_ABORT);
1887                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1888                 return 1;
1889         }
1890
1891         return 1;
1892 }
1893
1894 static void
1895 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1896                                   struct req_que *req, uint32_t index)
1897 {
1898         struct qla_hw_data *ha = vha->hw;
1899         srb_t *sp;
1900         uint16_t        comp_status;
1901         uint16_t        scsi_status;
1902         uint16_t thread_id;
1903         uint32_t rval = EXT_STATUS_OK;
1904         struct fc_bsg_job *bsg_job = NULL;
1905         sts_entry_t *sts;
1906         struct sts_entry_24xx *sts24;
1907         sts = (sts_entry_t *) pkt;
1908         sts24 = (struct sts_entry_24xx *) pkt;
1909
1910         /* Validate handle. */
1911         if (index >= req->num_outstanding_cmds) {
1912                 ql_log(ql_log_warn, vha, 0x70af,
1913                     "Invalid SCSI completion handle 0x%x.\n", index);
1914                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1915                 return;
1916         }
1917
1918         sp = req->outstanding_cmds[index];
1919         if (sp) {
1920                 /* Free outstanding command slot. */
1921                 req->outstanding_cmds[index] = NULL;
1922                 bsg_job = sp->u.bsg_job;
1923         } else {
1924                 ql_log(ql_log_warn, vha, 0x70b0,
1925                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1926                     req->id, index);
1927
1928                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1929                 return;
1930         }
1931
1932         if (IS_FWI2_CAPABLE(ha)) {
1933                 comp_status = le16_to_cpu(sts24->comp_status);
1934                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1935         } else {
1936                 comp_status = le16_to_cpu(sts->comp_status);
1937                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1938         }
1939
1940         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1941         switch (comp_status) {
1942         case CS_COMPLETE:
1943                 if (scsi_status == 0) {
1944                         bsg_job->reply->reply_payload_rcv_len =
1945                                         bsg_job->reply_payload.payload_len;
1946                         vha->qla_stats.input_bytes +=
1947                                 bsg_job->reply->reply_payload_rcv_len;
1948                         vha->qla_stats.input_requests++;
1949                         rval = EXT_STATUS_OK;
1950                 }
1951                 goto done;
1952
1953         case CS_DATA_OVERRUN:
1954                 ql_dbg(ql_dbg_user, vha, 0x70b1,
1955                     "Command completed with date overrun thread_id=%d\n",
1956                     thread_id);
1957                 rval = EXT_STATUS_DATA_OVERRUN;
1958                 break;
1959
1960         case CS_DATA_UNDERRUN:
1961                 ql_dbg(ql_dbg_user, vha, 0x70b2,
1962                     "Command completed with date underrun thread_id=%d\n",
1963                     thread_id);
1964                 rval = EXT_STATUS_DATA_UNDERRUN;
1965                 break;
1966         case CS_BIDIR_RD_OVERRUN:
1967                 ql_dbg(ql_dbg_user, vha, 0x70b3,
1968                     "Command completed with read data overrun thread_id=%d\n",
1969                     thread_id);
1970                 rval = EXT_STATUS_DATA_OVERRUN;
1971                 break;
1972
1973         case CS_BIDIR_RD_WR_OVERRUN:
1974                 ql_dbg(ql_dbg_user, vha, 0x70b4,
1975                     "Command completed with read and write data overrun "
1976                     "thread_id=%d\n", thread_id);
1977                 rval = EXT_STATUS_DATA_OVERRUN;
1978                 break;
1979
1980         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1981                 ql_dbg(ql_dbg_user, vha, 0x70b5,
1982                     "Command completed with read data over and write data "
1983                     "underrun thread_id=%d\n", thread_id);
1984                 rval = EXT_STATUS_DATA_OVERRUN;
1985                 break;
1986
1987         case CS_BIDIR_RD_UNDERRUN:
1988                 ql_dbg(ql_dbg_user, vha, 0x70b6,
1989                     "Command completed with read data data underrun "
1990                     "thread_id=%d\n", thread_id);
1991                 rval = EXT_STATUS_DATA_UNDERRUN;
1992                 break;
1993
1994         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1995                 ql_dbg(ql_dbg_user, vha, 0x70b7,
1996                     "Command completed with read data under and write data "
1997                     "overrun thread_id=%d\n", thread_id);
1998                 rval = EXT_STATUS_DATA_UNDERRUN;
1999                 break;
2000
2001         case CS_BIDIR_RD_WR_UNDERRUN:
2002                 ql_dbg(ql_dbg_user, vha, 0x70b8,
2003                     "Command completed with read and write data underrun "
2004                     "thread_id=%d\n", thread_id);
2005                 rval = EXT_STATUS_DATA_UNDERRUN;
2006                 break;
2007
2008         case CS_BIDIR_DMA:
2009                 ql_dbg(ql_dbg_user, vha, 0x70b9,
2010                     "Command completed with data DMA error thread_id=%d\n",
2011                     thread_id);
2012                 rval = EXT_STATUS_DMA_ERR;
2013                 break;
2014
2015         case CS_TIMEOUT:
2016                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2017                     "Command completed with timeout thread_id=%d\n",
2018                     thread_id);
2019                 rval = EXT_STATUS_TIMEOUT;
2020                 break;
2021         default:
2022                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2023                     "Command completed with completion status=0x%x "
2024                     "thread_id=%d\n", comp_status, thread_id);
2025                 rval = EXT_STATUS_ERR;
2026                 break;
2027         }
2028         bsg_job->reply->reply_payload_rcv_len = 0;
2029
2030 done:
2031         /* Return the vendor specific reply to API */
2032         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2033         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2034         /* Always return DID_OK, bsg will send the vendor specific response
2035          * in this case only */
2036         sp->done(vha, sp, (DID_OK << 6));
2037
2038 }
2039
2040 /**
2041  * qla2x00_status_entry() - Process a Status IOCB entry.
2042  * @ha: SCSI driver HA context
2043  * @pkt: Entry pointer
2044  */
2045 static void
2046 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2047 {
2048         srb_t           *sp;
2049         fc_port_t       *fcport;
2050         struct scsi_cmnd *cp;
2051         sts_entry_t *sts;
2052         struct sts_entry_24xx *sts24;
2053         uint16_t        comp_status;
2054         uint16_t        scsi_status;
2055         uint16_t        ox_id;
2056         uint8_t         lscsi_status;
2057         int32_t         resid;
2058         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2059             fw_resid_len;
2060         uint8_t         *rsp_info, *sense_data;
2061         struct qla_hw_data *ha = vha->hw;
2062         uint32_t handle;
2063         uint16_t que;
2064         struct req_que *req;
2065         int logit = 1;
2066         int res = 0;
2067         uint16_t state_flags = 0;
2068         uint16_t retry_delay = 0;
2069
2070         sts = (sts_entry_t *) pkt;
2071         sts24 = (struct sts_entry_24xx *) pkt;
2072         if (IS_FWI2_CAPABLE(ha)) {
2073                 comp_status = le16_to_cpu(sts24->comp_status);
2074                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2075                 state_flags = le16_to_cpu(sts24->state_flags);
2076         } else {
2077                 comp_status = le16_to_cpu(sts->comp_status);
2078                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2079         }
2080         handle = (uint32_t) LSW(sts->handle);
2081         que = MSW(sts->handle);
2082         req = ha->req_q_map[que];
2083
2084         /* Check for invalid queue pointer */
2085         if (req == NULL ||
2086             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2087                 ql_dbg(ql_dbg_io, vha, 0x3059,
2088                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2089                     "que=%u.\n", sts->handle, req, que);
2090                 return;
2091         }
2092
2093         /* Validate handle. */
2094         if (handle < req->num_outstanding_cmds) {
2095                 sp = req->outstanding_cmds[handle];
2096                 if (!sp) {
2097                         ql_dbg(ql_dbg_io, vha, 0x3075,
2098                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2099                             __func__, vha->host_no, sts->handle);
2100                         return;
2101                 }
2102         } else {
2103                 ql_dbg(ql_dbg_io, vha, 0x3017,
2104                     "Invalid status handle, out of range (0x%x).\n",
2105                     sts->handle);
2106
2107                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2108                         if (IS_P3P_TYPE(ha))
2109                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2110                         else
2111                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2112                         qla2xxx_wake_dpc(vha);
2113                 }
2114                 return;
2115         }
2116
2117         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2118                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2119                 return;
2120         }
2121
2122         /* Task Management completion. */
2123         if (sp->type == SRB_TM_CMD) {
2124                 qla24xx_tm_iocb_entry(vha, req, pkt);
2125                 return;
2126         }
2127
2128         /* Fast path completion. */
2129         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2130                 qla2x00_process_completed_request(vha, req, handle);
2131
2132                 return;
2133         }
2134
2135         req->outstanding_cmds[handle] = NULL;
2136         cp = GET_CMD_SP(sp);
2137         if (cp == NULL) {
2138                 ql_dbg(ql_dbg_io, vha, 0x3018,
2139                     "Command already returned (0x%x/%p).\n",
2140                     sts->handle, sp);
2141
2142                 return;
2143         }
2144
2145         lscsi_status = scsi_status & STATUS_MASK;
2146
2147         fcport = sp->fcport;
2148
2149         ox_id = 0;
2150         sense_len = par_sense_len = rsp_info_len = resid_len =
2151             fw_resid_len = 0;
2152         if (IS_FWI2_CAPABLE(ha)) {
2153                 if (scsi_status & SS_SENSE_LEN_VALID)
2154                         sense_len = le32_to_cpu(sts24->sense_len);
2155                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2156                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2157                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2158                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2159                 if (comp_status == CS_DATA_UNDERRUN)
2160                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2161                 rsp_info = sts24->data;
2162                 sense_data = sts24->data;
2163                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2164                 ox_id = le16_to_cpu(sts24->ox_id);
2165                 par_sense_len = sizeof(sts24->data);
2166                 /* Valid values of the retry delay timer are 0x1-0xffef */
2167                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2168                         retry_delay = sts24->retry_delay;
2169         } else {
2170                 if (scsi_status & SS_SENSE_LEN_VALID)
2171                         sense_len = le16_to_cpu(sts->req_sense_length);
2172                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2173                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2174                 resid_len = le32_to_cpu(sts->residual_length);
2175                 rsp_info = sts->rsp_info;
2176                 sense_data = sts->req_sense_data;
2177                 par_sense_len = sizeof(sts->req_sense_data);
2178         }
2179
2180         /* Check for any FCP transport errors. */
2181         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2182                 /* Sense data lies beyond any FCP RESPONSE data. */
2183                 if (IS_FWI2_CAPABLE(ha)) {
2184                         sense_data += rsp_info_len;
2185                         par_sense_len -= rsp_info_len;
2186                 }
2187                 if (rsp_info_len > 3 && rsp_info[3]) {
2188                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2189                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2190                             rsp_info_len, rsp_info[3]);
2191
2192                         res = DID_BUS_BUSY << 16;
2193                         goto out;
2194                 }
2195         }
2196
2197         /* Check for overrun. */
2198         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2199             scsi_status & SS_RESIDUAL_OVER)
2200                 comp_status = CS_DATA_OVERRUN;
2201
2202         /*
2203          * Check retry_delay_timer value if we receive a busy or
2204          * queue full.
2205          */
2206         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2207             lscsi_status == SAM_STAT_BUSY)
2208                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2209
2210         /*
2211          * Based on Host and scsi status generate status code for Linux
2212          */
2213         switch (comp_status) {
2214         case CS_COMPLETE:
2215         case CS_QUEUE_FULL:
2216                 if (scsi_status == 0) {
2217                         res = DID_OK << 16;
2218                         break;
2219                 }
2220                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2221                         resid = resid_len;
2222                         scsi_set_resid(cp, resid);
2223
2224                         if (!lscsi_status &&
2225                             ((unsigned)(scsi_bufflen(cp) - resid) <
2226                              cp->underflow)) {
2227                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2228                                     "Mid-layer underflow "
2229                                     "detected (0x%x of 0x%x bytes).\n",
2230                                     resid, scsi_bufflen(cp));
2231
2232                                 res = DID_ERROR << 16;
2233                                 break;
2234                         }
2235                 }
2236                 res = DID_OK << 16 | lscsi_status;
2237
2238                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2239                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2240                             "QUEUE FULL detected.\n");
2241                         break;
2242                 }
2243                 logit = 0;
2244                 if (lscsi_status != SS_CHECK_CONDITION)
2245                         break;
2246
2247                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2248                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2249                         break;
2250
2251                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2252                     rsp, res);
2253                 break;
2254
2255         case CS_DATA_UNDERRUN:
2256                 /* Use F/W calculated residual length. */
2257                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2258                 scsi_set_resid(cp, resid);
2259                 if (scsi_status & SS_RESIDUAL_UNDER) {
2260                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2261                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2262                                     "Dropped frame(s) detected "
2263                                     "(0x%x of 0x%x bytes).\n",
2264                                     resid, scsi_bufflen(cp));
2265
2266                                 res = DID_ERROR << 16 | lscsi_status;
2267                                 goto check_scsi_status;
2268                         }
2269
2270                         if (!lscsi_status &&
2271                             ((unsigned)(scsi_bufflen(cp) - resid) <
2272                             cp->underflow)) {
2273                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2274                                     "Mid-layer underflow "
2275                                     "detected (0x%x of 0x%x bytes).\n",
2276                                     resid, scsi_bufflen(cp));
2277
2278                                 res = DID_ERROR << 16;
2279                                 break;
2280                         }
2281                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2282                             lscsi_status != SAM_STAT_BUSY) {
2283                         /*
2284                          * scsi status of task set and busy are considered to be
2285                          * task not completed.
2286                          */
2287
2288                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2289                             "Dropped frame(s) detected (0x%x "
2290                             "of 0x%x bytes).\n", resid,
2291                             scsi_bufflen(cp));
2292
2293                         res = DID_ERROR << 16 | lscsi_status;
2294                         goto check_scsi_status;
2295                 } else {
2296                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2297                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2298                             scsi_status, lscsi_status);
2299                 }
2300
2301                 res = DID_OK << 16 | lscsi_status;
2302                 logit = 0;
2303
2304 check_scsi_status:
2305                 /*
2306                  * Check to see if SCSI Status is non zero. If so report SCSI
2307                  * Status.
2308                  */
2309                 if (lscsi_status != 0) {
2310                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2311                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2312                                     "QUEUE FULL detected.\n");
2313                                 logit = 1;
2314                                 break;
2315                         }
2316                         if (lscsi_status != SS_CHECK_CONDITION)
2317                                 break;
2318
2319                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2320                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2321                                 break;
2322
2323                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2324                             sense_len, rsp, res);
2325                 }
2326                 break;
2327
2328         case CS_PORT_LOGGED_OUT:
2329         case CS_PORT_CONFIG_CHG:
2330         case CS_PORT_BUSY:
2331         case CS_INCOMPLETE:
2332         case CS_PORT_UNAVAILABLE:
2333         case CS_TIMEOUT:
2334         case CS_RESET:
2335
2336                 /*
2337                  * We are going to have the fc class block the rport
2338                  * while we try to recover so instruct the mid layer
2339                  * to requeue until the class decides how to handle this.
2340                  */
2341                 res = DID_TRANSPORT_DISRUPTED << 16;
2342
2343                 if (comp_status == CS_TIMEOUT) {
2344                         if (IS_FWI2_CAPABLE(ha))
2345                                 break;
2346                         else if ((le16_to_cpu(sts->status_flags) &
2347                             SF_LOGOUT_SENT) == 0)
2348                                 break;
2349                 }
2350
2351                 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2352                     "Port to be marked lost on fcport=%02x%02x%02x, current "
2353                     "port state= %s.\n", fcport->d_id.b.domain,
2354                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2355                     port_state_str[atomic_read(&fcport->state)]);
2356
2357                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2358                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2359                 break;
2360
2361         case CS_ABORTED:
2362                 res = DID_RESET << 16;
2363                 break;
2364
2365         case CS_DIF_ERROR:
2366                 logit = qla2x00_handle_dif_error(sp, sts24);
2367                 res = cp->result;
2368                 break;
2369
2370         case CS_TRANSPORT:
2371                 res = DID_ERROR << 16;
2372
2373                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2374                         break;
2375
2376                 if (state_flags & BIT_4)
2377                         scmd_printk(KERN_WARNING, cp,
2378                             "Unsupported device '%s' found.\n",
2379                             cp->device->vendor);
2380                 break;
2381
2382         default:
2383                 res = DID_ERROR << 16;
2384                 break;
2385         }
2386
2387 out:
2388         if (logit)
2389                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2390                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2391                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2392                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2393                     comp_status, scsi_status, res, vha->host_no,
2394                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2395                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2396                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2397                     resid_len, fw_resid_len, sp, cp);
2398
2399         if (rsp->status_srb == NULL)
2400                 sp->done(ha, sp, res);
2401 }
2402
2403 /**
2404  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2405  * @ha: SCSI driver HA context
2406  * @pkt: Entry pointer
2407  *
2408  * Extended sense data.
2409  */
2410 static void
2411 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2412 {
2413         uint8_t sense_sz = 0;
2414         struct qla_hw_data *ha = rsp->hw;
2415         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2416         srb_t *sp = rsp->status_srb;
2417         struct scsi_cmnd *cp;
2418         uint32_t sense_len;
2419         uint8_t *sense_ptr;
2420
2421         if (!sp || !GET_CMD_SENSE_LEN(sp))
2422                 return;
2423
2424         sense_len = GET_CMD_SENSE_LEN(sp);
2425         sense_ptr = GET_CMD_SENSE_PTR(sp);
2426
2427         cp = GET_CMD_SP(sp);
2428         if (cp == NULL) {
2429                 ql_log(ql_log_warn, vha, 0x3025,
2430                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2431
2432                 rsp->status_srb = NULL;
2433                 return;
2434         }
2435
2436         if (sense_len > sizeof(pkt->data))
2437                 sense_sz = sizeof(pkt->data);
2438         else
2439                 sense_sz = sense_len;
2440
2441         /* Move sense data. */
2442         if (IS_FWI2_CAPABLE(ha))
2443                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2444         memcpy(sense_ptr, pkt->data, sense_sz);
2445         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2446                 sense_ptr, sense_sz);
2447
2448         sense_len -= sense_sz;
2449         sense_ptr += sense_sz;
2450
2451         SET_CMD_SENSE_PTR(sp, sense_ptr);
2452         SET_CMD_SENSE_LEN(sp, sense_len);
2453
2454         /* Place command on done queue. */
2455         if (sense_len == 0) {
2456                 rsp->status_srb = NULL;
2457                 sp->done(ha, sp, cp->result);
2458         }
2459 }
2460
2461 /**
2462  * qla2x00_error_entry() - Process an error entry.
2463  * @ha: SCSI driver HA context
2464  * @pkt: Entry pointer
2465  */
2466 static void
2467 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2468 {
2469         srb_t *sp;
2470         struct qla_hw_data *ha = vha->hw;
2471         const char func[] = "ERROR-IOCB";
2472         uint16_t que = MSW(pkt->handle);
2473         struct req_que *req = NULL;
2474         int res = DID_ERROR << 16;
2475
2476         ql_dbg(ql_dbg_async, vha, 0x502a,
2477             "type of error status in response: 0x%x\n", pkt->entry_status);
2478
2479         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2480                 goto fatal;
2481
2482         req = ha->req_q_map[que];
2483
2484         if (pkt->entry_status & RF_BUSY)
2485                 res = DID_BUS_BUSY << 16;
2486
2487         if (pkt->entry_type == NOTIFY_ACK_TYPE &&
2488             pkt->handle == QLA_TGT_SKIP_HANDLE)
2489                 return;
2490
2491         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2492         if (sp) {
2493                 sp->done(ha, sp, res);
2494                 return;
2495         }
2496 fatal:
2497         ql_log(ql_log_warn, vha, 0x5030,
2498             "Error entry - invalid handle/queue (%04x).\n", que);
2499 }
2500
2501 /**
2502  * qla24xx_mbx_completion() - Process mailbox command completions.
2503  * @ha: SCSI driver HA context
2504  * @mb0: Mailbox0 register
2505  */
2506 static void
2507 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2508 {
2509         uint16_t        cnt;
2510         uint32_t        mboxes;
2511         uint16_t __iomem *wptr;
2512         struct qla_hw_data *ha = vha->hw;
2513         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2514
2515         /* Read all mbox registers? */
2516         WARN_ON_ONCE(ha->mbx_count > 32);
2517         mboxes = (1ULL << ha->mbx_count) - 1;
2518         if (!ha->mcp)
2519                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2520         else
2521                 mboxes = ha->mcp->in_mb;
2522
2523         /* Load return mailbox registers. */
2524         ha->flags.mbox_int = 1;
2525         ha->mailbox_out[0] = mb0;
2526         mboxes >>= 1;
2527         wptr = (uint16_t __iomem *)&reg->mailbox1;
2528
2529         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2530                 if (mboxes & BIT_0)
2531                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2532
2533                 mboxes >>= 1;
2534                 wptr++;
2535         }
2536 }
2537
2538 static void
2539 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2540         struct abort_entry_24xx *pkt)
2541 {
2542         const char func[] = "ABT_IOCB";
2543         srb_t *sp;
2544         struct srb_iocb *abt;
2545
2546         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2547         if (!sp)
2548                 return;
2549
2550         abt = &sp->u.iocb_cmd;
2551         abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2552         sp->done(vha, sp, 0);
2553 }
2554
2555 /**
2556  * qla24xx_process_response_queue() - Process response queue entries.
2557  * @ha: SCSI driver HA context
2558  */
2559 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2560         struct rsp_que *rsp)
2561 {
2562         struct sts_entry_24xx *pkt;
2563         struct qla_hw_data *ha = vha->hw;
2564
2565         if (!vha->flags.online)
2566                 return;
2567
2568         if (rsp->msix && rsp->msix->cpuid != smp_processor_id()) {
2569                 /* if kernel does not notify qla of IRQ's CPU change,
2570                  * then set it here.
2571                  */
2572                 rsp->msix->cpuid = smp_processor_id();
2573                 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid;
2574         }
2575
2576         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2577                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2578
2579                 rsp->ring_index++;
2580                 if (rsp->ring_index == rsp->length) {
2581                         rsp->ring_index = 0;
2582                         rsp->ring_ptr = rsp->ring;
2583                 } else {
2584                         rsp->ring_ptr++;
2585                 }
2586
2587                 if (pkt->entry_status != 0) {
2588                         qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2589
2590                         if (qlt_24xx_process_response_error(vha, pkt))
2591                                 goto process_err;
2592
2593                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2594                         wmb();
2595                         continue;
2596                 }
2597 process_err:
2598
2599                 switch (pkt->entry_type) {
2600                 case STATUS_TYPE:
2601                         qla2x00_status_entry(vha, rsp, pkt);
2602                         break;
2603                 case STATUS_CONT_TYPE:
2604                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2605                         break;
2606                 case VP_RPT_ID_IOCB_TYPE:
2607                         qla24xx_report_id_acquisition(vha,
2608                             (struct vp_rpt_id_entry_24xx *)pkt);
2609                         break;
2610                 case LOGINOUT_PORT_IOCB_TYPE:
2611                         qla24xx_logio_entry(vha, rsp->req,
2612                             (struct logio_entry_24xx *)pkt);
2613                         break;
2614                 case CT_IOCB_TYPE:
2615                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2616                         break;
2617                 case ELS_IOCB_TYPE:
2618                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2619                         break;
2620                 case ABTS_RECV_24XX:
2621                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2622                                 /* ensure that the ATIO queue is empty */
2623                                 qlt_handle_abts_recv(vha, (response_t *)pkt);
2624                                 break;
2625                         } else {
2626                                 /* drop through */
2627                                 qlt_24xx_process_atio_queue(vha, 1);
2628                         }
2629                 case ABTS_RESP_24XX:
2630                 case CTIO_TYPE7:
2631                 case NOTIFY_ACK_TYPE:
2632                 case CTIO_CRC2:
2633                         qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2634                         break;
2635                 case MARKER_TYPE:
2636                         /* Do nothing in this case, this check is to prevent it
2637                          * from falling into default case
2638                          */
2639                         break;
2640                 case ABORT_IOCB_TYPE:
2641                         qla24xx_abort_iocb_entry(vha, rsp->req,
2642                             (struct abort_entry_24xx *)pkt);
2643                         break;
2644                 default:
2645                         /* Type Not Supported. */
2646                         ql_dbg(ql_dbg_async, vha, 0x5042,
2647                             "Received unknown response pkt type %x "
2648                             "entry status=%x.\n",
2649                             pkt->entry_type, pkt->entry_status);
2650                         break;
2651                 }
2652                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2653                 wmb();
2654         }
2655
2656         /* Adjust ring index */
2657         if (IS_P3P_TYPE(ha)) {
2658                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2659                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2660         } else
2661                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2662 }
2663
2664 static void
2665 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2666 {
2667         int rval;
2668         uint32_t cnt;
2669         struct qla_hw_data *ha = vha->hw;
2670         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2671
2672         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2673             !IS_QLA27XX(ha))
2674                 return;
2675
2676         rval = QLA_SUCCESS;
2677         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2678         RD_REG_DWORD(&reg->iobase_addr);
2679         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2680         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2681             rval == QLA_SUCCESS; cnt--) {
2682                 if (cnt) {
2683                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2684                         udelay(10);
2685                 } else
2686                         rval = QLA_FUNCTION_TIMEOUT;
2687         }
2688         if (rval == QLA_SUCCESS)
2689                 goto next_test;
2690
2691         rval = QLA_SUCCESS;
2692         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2693         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2694             rval == QLA_SUCCESS; cnt--) {
2695                 if (cnt) {
2696                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2697                         udelay(10);
2698                 } else
2699                         rval = QLA_FUNCTION_TIMEOUT;
2700         }
2701         if (rval != QLA_SUCCESS)
2702                 goto done;
2703
2704 next_test:
2705         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2706                 ql_log(ql_log_info, vha, 0x504c,
2707                     "Additional code -- 0x55AA.\n");
2708
2709 done:
2710         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2711         RD_REG_DWORD(&reg->iobase_window);
2712 }
2713
2714 /**
2715  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2716  * @irq:
2717  * @dev_id: SCSI driver HA context
2718  *
2719  * Called by system whenever the host adapter generates an interrupt.
2720  *
2721  * Returns handled flag.
2722  */
2723 irqreturn_t
2724 qla24xx_intr_handler(int irq, void *dev_id)
2725 {
2726         scsi_qla_host_t *vha;
2727         struct qla_hw_data *ha;
2728         struct device_reg_24xx __iomem *reg;
2729         int             status;
2730         unsigned long   iter;
2731         uint32_t        stat;
2732         uint32_t        hccr;
2733         uint16_t        mb[8];
2734         struct rsp_que *rsp;
2735         unsigned long   flags;
2736
2737         rsp = (struct rsp_que *) dev_id;
2738         if (!rsp) {
2739                 ql_log(ql_log_info, NULL, 0x5059,
2740                     "%s: NULL response queue pointer.\n", __func__);
2741                 return IRQ_NONE;
2742         }
2743
2744         ha = rsp->hw;
2745         reg = &ha->iobase->isp24;
2746         status = 0;
2747
2748         if (unlikely(pci_channel_offline(ha->pdev)))
2749                 return IRQ_HANDLED;
2750
2751         spin_lock_irqsave(&ha->hardware_lock, flags);
2752         vha = pci_get_drvdata(ha->pdev);
2753         for (iter = 50; iter--; ) {
2754                 stat = RD_REG_DWORD(&reg->host_status);
2755                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2756                         break;
2757                 if (stat & HSRX_RISC_PAUSED) {
2758                         if (unlikely(pci_channel_offline(ha->pdev)))
2759                                 break;
2760
2761                         hccr = RD_REG_DWORD(&reg->hccr);
2762
2763                         ql_log(ql_log_warn, vha, 0x504b,
2764                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2765                             hccr);
2766
2767                         qla2xxx_check_risc_status(vha);
2768
2769                         ha->isp_ops->fw_dump(vha, 1);
2770                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2771                         break;
2772                 } else if ((stat & HSRX_RISC_INT) == 0)
2773                         break;
2774
2775                 switch (stat & 0xff) {
2776                 case INTR_ROM_MB_SUCCESS:
2777                 case INTR_ROM_MB_FAILED:
2778                 case INTR_MB_SUCCESS:
2779                 case INTR_MB_FAILED:
2780                         qla24xx_mbx_completion(vha, MSW(stat));
2781                         status |= MBX_INTERRUPT;
2782
2783                         break;
2784                 case INTR_ASYNC_EVENT:
2785                         mb[0] = MSW(stat);
2786                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2787                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2788                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2789                         qla2x00_async_event(vha, rsp, mb);
2790                         break;
2791                 case INTR_RSP_QUE_UPDATE:
2792                 case INTR_RSP_QUE_UPDATE_83XX:
2793                         qla24xx_process_response_queue(vha, rsp);
2794                         break;
2795                 case INTR_ATIO_QUE_UPDATE:{
2796                         unsigned long flags2;
2797                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2798                         qlt_24xx_process_atio_queue(vha, 1);
2799                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2800                         break;
2801                 }
2802                 case INTR_ATIO_RSP_QUE_UPDATE: {
2803                         unsigned long flags2;
2804                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2805                         qlt_24xx_process_atio_queue(vha, 1);
2806                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2807
2808                         qla24xx_process_response_queue(vha, rsp);
2809                         break;
2810                 }
2811                 default:
2812                         ql_dbg(ql_dbg_async, vha, 0x504f,
2813                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
2814                         break;
2815                 }
2816                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2817                 RD_REG_DWORD_RELAXED(&reg->hccr);
2818                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2819                         ndelay(3500);
2820         }
2821         qla2x00_handle_mbx_completion(ha, status);
2822         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2823
2824         return IRQ_HANDLED;
2825 }
2826
2827 static irqreturn_t
2828 qla24xx_msix_rsp_q(int irq, void *dev_id)
2829 {
2830         struct qla_hw_data *ha;
2831         struct rsp_que *rsp;
2832         struct device_reg_24xx __iomem *reg;
2833         struct scsi_qla_host *vha;
2834         unsigned long flags;
2835         uint32_t stat = 0;
2836
2837         rsp = (struct rsp_que *) dev_id;
2838         if (!rsp) {
2839                 ql_log(ql_log_info, NULL, 0x505a,
2840                     "%s: NULL response queue pointer.\n", __func__);
2841                 return IRQ_NONE;
2842         }
2843         ha = rsp->hw;
2844         reg = &ha->iobase->isp24;
2845
2846         spin_lock_irqsave(&ha->hardware_lock, flags);
2847
2848         vha = pci_get_drvdata(ha->pdev);
2849         /*
2850          * Use host_status register to check to PCI disconnection before we
2851          * we process the response queue.
2852          */
2853         stat = RD_REG_DWORD(&reg->host_status);
2854         if (qla2x00_check_reg32_for_disconnect(vha, stat))
2855                 goto out;
2856         qla24xx_process_response_queue(vha, rsp);
2857         if (!ha->flags.disable_msix_handshake) {
2858                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2859                 RD_REG_DWORD_RELAXED(&reg->hccr);
2860         }
2861 out:
2862         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2863
2864         return IRQ_HANDLED;
2865 }
2866
2867 static irqreturn_t
2868 qla25xx_msix_rsp_q(int irq, void *dev_id)
2869 {
2870         struct qla_hw_data *ha;
2871         scsi_qla_host_t *vha;
2872         struct rsp_que *rsp;
2873         struct device_reg_24xx __iomem *reg;
2874         unsigned long flags;
2875         uint32_t hccr = 0;
2876
2877         rsp = (struct rsp_que *) dev_id;
2878         if (!rsp) {
2879                 ql_log(ql_log_info, NULL, 0x505b,
2880                     "%s: NULL response queue pointer.\n", __func__);
2881                 return IRQ_NONE;
2882         }
2883         ha = rsp->hw;
2884         vha = pci_get_drvdata(ha->pdev);
2885
2886         /* Clear the interrupt, if enabled, for this response queue */
2887         if (!ha->flags.disable_msix_handshake) {
2888                 reg = &ha->iobase->isp24;
2889                 spin_lock_irqsave(&ha->hardware_lock, flags);
2890                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2891                 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2892                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2893         }
2894         if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2895                 goto out;
2896         queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2897
2898 out:
2899         return IRQ_HANDLED;
2900 }
2901
2902 static irqreturn_t
2903 qla24xx_msix_default(int irq, void *dev_id)
2904 {
2905         scsi_qla_host_t *vha;
2906         struct qla_hw_data *ha;
2907         struct rsp_que *rsp;
2908         struct device_reg_24xx __iomem *reg;
2909         int             status;
2910         uint32_t        stat;
2911         uint32_t        hccr;
2912         uint16_t        mb[8];
2913         unsigned long flags;
2914
2915         rsp = (struct rsp_que *) dev_id;
2916         if (!rsp) {
2917                 ql_log(ql_log_info, NULL, 0x505c,
2918                     "%s: NULL response queue pointer.\n", __func__);
2919                 return IRQ_NONE;
2920         }
2921         ha = rsp->hw;
2922         reg = &ha->iobase->isp24;
2923         status = 0;
2924
2925         spin_lock_irqsave(&ha->hardware_lock, flags);
2926         vha = pci_get_drvdata(ha->pdev);
2927         do {
2928                 stat = RD_REG_DWORD(&reg->host_status);
2929                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2930                         break;
2931                 if (stat & HSRX_RISC_PAUSED) {
2932                         if (unlikely(pci_channel_offline(ha->pdev)))
2933                                 break;
2934
2935                         hccr = RD_REG_DWORD(&reg->hccr);
2936
2937                         ql_log(ql_log_info, vha, 0x5050,
2938                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2939                             hccr);
2940
2941                         qla2xxx_check_risc_status(vha);
2942
2943                         ha->isp_ops->fw_dump(vha, 1);
2944                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2945                         break;
2946                 } else if ((stat & HSRX_RISC_INT) == 0)
2947                         break;
2948
2949                 switch (stat & 0xff) {
2950                 case INTR_ROM_MB_SUCCESS:
2951                 case INTR_ROM_MB_FAILED:
2952                 case INTR_MB_SUCCESS:
2953                 case INTR_MB_FAILED:
2954                         qla24xx_mbx_completion(vha, MSW(stat));
2955                         status |= MBX_INTERRUPT;
2956
2957                         break;
2958                 case INTR_ASYNC_EVENT:
2959                         mb[0] = MSW(stat);
2960                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2961                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2962                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2963                         qla2x00_async_event(vha, rsp, mb);
2964                         break;
2965                 case INTR_RSP_QUE_UPDATE:
2966                 case INTR_RSP_QUE_UPDATE_83XX:
2967                         qla24xx_process_response_queue(vha, rsp);
2968                         break;
2969                 case INTR_ATIO_QUE_UPDATE:{
2970                         unsigned long flags2;
2971                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2972                         qlt_24xx_process_atio_queue(vha, 1);
2973                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2974                         break;
2975                 }
2976                 case INTR_ATIO_RSP_QUE_UPDATE: {
2977                         unsigned long flags2;
2978                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2979                         qlt_24xx_process_atio_queue(vha, 1);
2980                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2981
2982                         qla24xx_process_response_queue(vha, rsp);
2983                         break;
2984                 }
2985                 default:
2986                         ql_dbg(ql_dbg_async, vha, 0x5051,
2987                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
2988                         break;
2989                 }
2990                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2991         } while (0);
2992         qla2x00_handle_mbx_completion(ha, status);
2993         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2994
2995         return IRQ_HANDLED;
2996 }
2997
2998 /* Interrupt handling helpers. */
2999
3000 struct qla_init_msix_entry {
3001         const char *name;
3002         irq_handler_t handler;
3003 };
3004
3005 static struct qla_init_msix_entry msix_entries[3] = {
3006         { "qla2xxx (default)", qla24xx_msix_default },
3007         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3008         { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
3009 };
3010
3011 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
3012         { "qla2xxx (default)", qla82xx_msix_default },
3013         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3014 };
3015
3016 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
3017         { "qla2xxx (default)", qla24xx_msix_default },
3018         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3019         { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3020 };
3021
3022 static void
3023 qla24xx_disable_msix(struct qla_hw_data *ha)
3024 {
3025         int i;
3026         struct qla_msix_entry *qentry;
3027         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3028
3029         for (i = 0; i < ha->msix_count; i++) {
3030                 qentry = &ha->msix_entries[i];
3031                 if (qentry->have_irq) {
3032                         /* un-register irq cpu affinity notification */
3033                         irq_set_affinity_notifier(qentry->vector, NULL);
3034                         free_irq(qentry->vector, qentry->rsp);
3035                 }
3036         }
3037         pci_disable_msix(ha->pdev);
3038         kfree(ha->msix_entries);
3039         ha->msix_entries = NULL;
3040         ha->flags.msix_enabled = 0;
3041         ql_dbg(ql_dbg_init, vha, 0x0042,
3042             "Disabled the MSI.\n");
3043 }
3044
3045 static int
3046 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3047 {
3048 #define MIN_MSIX_COUNT  2
3049 #define ATIO_VECTOR     2
3050         int i, ret;
3051         struct msix_entry *entries;
3052         struct qla_msix_entry *qentry;
3053         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3054
3055         entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3056                         GFP_KERNEL);
3057         if (!entries) {
3058                 ql_log(ql_log_warn, vha, 0x00bc,
3059                     "Failed to allocate memory for msix_entry.\n");
3060                 return -ENOMEM;
3061         }
3062
3063         for (i = 0; i < ha->msix_count; i++)
3064                 entries[i].entry = i;
3065
3066         ret = pci_enable_msix_range(ha->pdev,
3067                                     entries, MIN_MSIX_COUNT, ha->msix_count);
3068         if (ret < 0) {
3069                 ql_log(ql_log_fatal, vha, 0x00c7,
3070                     "MSI-X: Failed to enable support, "
3071                     "giving   up -- %d/%d.\n",
3072                     ha->msix_count, ret);
3073                 goto msix_out;
3074         } else if (ret < ha->msix_count) {
3075                 ql_log(ql_log_warn, vha, 0x00c6,
3076                     "MSI-X: Failed to enable support "
3077                     "-- %d/%d\n Retry with %d vectors.\n",
3078                     ha->msix_count, ret, ret);
3079                 ha->msix_count = ret;
3080                 ha->max_rsp_queues = ha->msix_count - 1;
3081         }
3082         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3083                                 ha->msix_count, GFP_KERNEL);
3084         if (!ha->msix_entries) {
3085                 ql_log(ql_log_fatal, vha, 0x00c8,
3086                     "Failed to allocate memory for ha->msix_entries.\n");
3087                 ret = -ENOMEM;
3088                 goto free_irqs;
3089         }
3090         ha->flags.msix_enabled = 1;
3091
3092         for (i = 0; i < ha->msix_count; i++) {
3093                 qentry = &ha->msix_entries[i];
3094                 qentry->vector = entries[i].vector;
3095                 qentry->entry = entries[i].entry;
3096                 qentry->have_irq = 0;
3097                 qentry->rsp = NULL;
3098                 qentry->irq_notify.notify  = qla_irq_affinity_notify;
3099                 qentry->irq_notify.release = qla_irq_affinity_release;
3100                 qentry->cpuid = -1;
3101         }
3102
3103         /* Enable MSI-X vectors for the base queue */
3104         for (i = 0; i < 2; i++) {
3105                 qentry = &ha->msix_entries[i];
3106                 qentry->rsp = rsp;
3107                 rsp->msix = qentry;
3108                 if (IS_P3P_TYPE(ha))
3109                         ret = request_irq(qentry->vector,
3110                                 qla82xx_msix_entries[i].handler,
3111                                 0, qla82xx_msix_entries[i].name, rsp);
3112                 else
3113                         ret = request_irq(qentry->vector,
3114                                 msix_entries[i].handler,
3115                                 0, msix_entries[i].name, rsp);
3116                 if (ret)
3117                         goto msix_register_fail;
3118                 qentry->have_irq = 1;
3119
3120                 /* Register for CPU affinity notification. */
3121                 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
3122
3123                 /* Schedule work (ie. trigger a notification) to read cpu
3124                  * mask for this specific irq.
3125                  * kref_get is required because
3126                 * irq_affinity_notify() will do
3127                 * kref_put().
3128                 */
3129                 kref_get(&qentry->irq_notify.kref);
3130                 schedule_work(&qentry->irq_notify.work);
3131         }
3132
3133         /*
3134          * If target mode is enable, also request the vector for the ATIO
3135          * queue.
3136          */
3137         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3138                 qentry = &ha->msix_entries[ATIO_VECTOR];
3139                 qentry->rsp = rsp;
3140                 rsp->msix = qentry;
3141                 ret = request_irq(qentry->vector,
3142                         qla83xx_msix_entries[ATIO_VECTOR].handler,
3143                         0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3144                 qentry->have_irq = 1;
3145         }
3146
3147 msix_register_fail:
3148         if (ret) {
3149                 ql_log(ql_log_fatal, vha, 0x00cb,
3150                     "MSI-X: unable to register handler -- %x/%d.\n",
3151                     qentry->vector, ret);
3152                 qla24xx_disable_msix(ha);
3153                 ha->mqenable = 0;
3154                 goto msix_out;
3155         }
3156
3157         /* Enable MSI-X vector for response queue update for queue 0 */
3158         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3159                 if (ha->msixbase && ha->mqiobase &&
3160                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3161                         ha->mqenable = 1;
3162         } else
3163                 if (ha->mqiobase
3164                     && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3165                         ha->mqenable = 1;
3166         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3167             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3168             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3169         ql_dbg(ql_dbg_init, vha, 0x0055,
3170             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3171             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3172
3173 msix_out:
3174         kfree(entries);
3175         return ret;
3176
3177 free_irqs:
3178         pci_free_irq_vectors(ha->pdev);
3179         goto msix_out;
3180 }
3181
3182 int
3183 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3184 {
3185         int ret = QLA_FUNCTION_FAILED;
3186         device_reg_t *reg = ha->iobase;
3187         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3188
3189         /* If possible, enable MSI-X. */
3190         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3191             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3192             !IS_QLA27XX(ha))
3193                 goto skip_msi;
3194
3195         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3196                 (ha->pdev->subsystem_device == 0x7040 ||
3197                 ha->pdev->subsystem_device == 0x7041 ||
3198                 ha->pdev->subsystem_device == 0x1705)) {
3199                 ql_log(ql_log_warn, vha, 0x0034,
3200                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3201                         ha->pdev->subsystem_vendor,
3202                         ha->pdev->subsystem_device);
3203                 goto skip_msi;
3204         }
3205
3206         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3207                 ql_log(ql_log_warn, vha, 0x0035,
3208                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3209                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3210                 goto skip_msix;
3211         }
3212
3213         ret = qla24xx_enable_msix(ha, rsp);
3214         if (!ret) {
3215                 ql_dbg(ql_dbg_init, vha, 0x0036,
3216                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3217                     ha->chip_revision, ha->fw_attributes);
3218                 goto clear_risc_ints;
3219         }
3220
3221 skip_msix:
3222
3223         ql_log(ql_log_info, vha, 0x0037,
3224             "Falling back-to MSI mode -%d.\n", ret);
3225
3226         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3227             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3228             !IS_QLA27XX(ha))
3229                 goto skip_msi;
3230
3231         ret = pci_enable_msi(ha->pdev);
3232         if (!ret) {
3233                 ql_dbg(ql_dbg_init, vha, 0x0038,
3234                     "MSI: Enabled.\n");
3235                 ha->flags.msi_enabled = 1;
3236         } else
3237                 ql_log(ql_log_warn, vha, 0x0039,
3238                     "Falling back-to INTa mode -- %d.\n", ret);
3239 skip_msi:
3240
3241         /* Skip INTx on ISP82xx. */
3242         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3243                 return QLA_FUNCTION_FAILED;
3244
3245         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3246             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3247             QLA2XXX_DRIVER_NAME, rsp);
3248         if (ret) {
3249                 ql_log(ql_log_warn, vha, 0x003a,
3250                     "Failed to reserve interrupt %d already in use.\n",
3251                     ha->pdev->irq);
3252                 goto fail;
3253         } else if (!ha->flags.msi_enabled) {
3254                 ql_dbg(ql_dbg_init, vha, 0x0125,
3255                     "INTa mode: Enabled.\n");
3256                 ha->flags.mr_intr_valid = 1;
3257         }
3258
3259 clear_risc_ints:
3260         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3261                 goto fail;
3262
3263         spin_lock_irq(&ha->hardware_lock);
3264         WRT_REG_WORD(&reg->isp.semaphore, 0);
3265         spin_unlock_irq(&ha->hardware_lock);
3266
3267 fail:
3268         return ret;
3269 }
3270
3271 void
3272 qla2x00_free_irqs(scsi_qla_host_t *vha)
3273 {
3274         struct qla_hw_data *ha = vha->hw;
3275         struct rsp_que *rsp;
3276
3277         /*
3278          * We need to check that ha->rsp_q_map is valid in case we are called
3279          * from a probe failure context.
3280          */
3281         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3282                 return;
3283         rsp = ha->rsp_q_map[0];
3284
3285         if (ha->flags.msix_enabled)
3286                 qla24xx_disable_msix(ha);
3287         else if (ha->flags.msi_enabled) {
3288                 free_irq(ha->pdev->irq, rsp);
3289                 pci_disable_msi(ha->pdev);
3290         } else
3291                 free_irq(ha->pdev->irq, rsp);
3292 }
3293
3294
3295 int qla25xx_request_irq(struct rsp_que *rsp)
3296 {
3297         struct qla_hw_data *ha = rsp->hw;
3298         struct qla_init_msix_entry *intr = &msix_entries[2];
3299         struct qla_msix_entry *msix = rsp->msix;
3300         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3301         int ret;
3302
3303         ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3304         if (ret) {
3305                 ql_log(ql_log_fatal, vha, 0x00e6,
3306                     "MSI-X: Unable to register handler -- %x/%d.\n",
3307                     msix->vector, ret);
3308                 return ret;
3309         }
3310         msix->have_irq = 1;
3311         msix->rsp = rsp;
3312         return ret;
3313 }
3314
3315
3316 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */
3317 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
3318         const cpumask_t *mask)
3319 {
3320         struct qla_msix_entry *e =
3321                 container_of(notify, struct qla_msix_entry, irq_notify);
3322         struct qla_hw_data *ha;
3323         struct scsi_qla_host *base_vha;
3324
3325         /* user is recommended to set mask to just 1 cpu */
3326         e->cpuid = cpumask_first(mask);
3327
3328         ha = e->rsp->hw;
3329         base_vha = pci_get_drvdata(ha->pdev);
3330
3331         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3332             "%s: host %ld : vector %d cpu %d \n", __func__,
3333             base_vha->host_no, e->vector, e->cpuid);
3334
3335         if (e->have_irq) {
3336                 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) &&
3337                     (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) {
3338                         ha->tgt.rspq_vector_cpuid = e->cpuid;
3339                         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3340                             "%s: host%ld: rspq vector %d cpu %d  runtime change\n",
3341                             __func__, base_vha->host_no, e->vector, e->cpuid);
3342                 }
3343         }
3344 }
3345
3346 static void qla_irq_affinity_release(struct kref *ref)
3347 {
3348         struct irq_affinity_notify *notify =
3349                 container_of(ref, struct irq_affinity_notify, kref);
3350         struct qla_msix_entry *e =
3351                 container_of(notify, struct qla_msix_entry, irq_notify);
3352         struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
3353
3354         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3355             "%s: host%ld: vector %d cpu %d \n", __func__,
3356             base_vha->host_no, e->vector, e->cpuid);
3357 }