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