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                         if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
 938                                 atomic_set(&vha->loop_state, LOOP_DOWN);
 939                                 atomic_set(&vha->loop_down_timer,
 940                                     LOOP_DOWN_TIME);
 941                                 vha->device_flags |= DFLG_NO_CABLE;
 942                                 qla2x00_mark_all_devices_lost(vha, 1);
 943                         }
 944
 945                         if (vha->vp_idx) {
 946                                 atomic_set(&vha->vp_state, VP_FAILED);
 947                                 fc_vport_set_state(vha->fc_vport,
 948                                     FC_VPORT_FAILED);
 949                                 qla2x00_mark_all_devices_lost(vha, 1);
 950                         }
 951
 952                         vha->flags.management_server_logged_in = 0;
 953                         ha->link_data_rate = PORT_SPEED_UNKNOWN;
 954                         break;
 955                 }
 956
 957                 /*
 958                  * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
 959                  * event etc. earlier indicating loop is down) then process
 960                  * it.  Otherwise ignore it and Wait for RSCN to come in.
 961                  */
 962                 atomic_set(&vha->loop_down_timer, 0);
 963                 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
 964                     atomic_read(&vha->loop_state) != LOOP_DEAD) {
 965                         ql_dbg(ql_dbg_async, vha, 0x5011,
 966                             "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
 967                             mb[1], mb[2], mb[3]);
 968
 969                         qlt_async_event(mb[0], vha, mb);
 970                         break;
 971                 }
 972
 973                 ql_dbg(ql_dbg_async, vha, 0x5012,
 974                     "Port database changed %04x %04x %04x.\n",
 975                     mb[1], mb[2], mb[3]);
 976
 977                 /*
 978                  * Mark all devices as missing so we will login again.
 979                  */
 980                 atomic_set(&vha->loop_state, LOOP_UP);
 981
 982                 qla2x00_mark_all_devices_lost(vha, 1);
 983
 984                 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
 985                         set_bit(SCR_PENDING, &vha->dpc_flags);
 986
 987                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
 988                 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
 989                 set_bit(VP_CONFIG_OK, &vha->vp_flags);
 990
 991                 qlt_async_event(mb[0], vha, mb);
 992                 break;
 993
 994         case MBA_RSCN_UPDATE:           /* State Change Registration */
 995                 /* Check if the Vport has issued a SCR */
 996                 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
 997                         break;
 998                 /* Only handle SCNs for our Vport index. */
 999                 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1000                         break;
1001
1002                 ql_dbg(ql_dbg_async, vha, 0x5013,
1003                     "RSCN database changed -- %04x %04x %04x.\n",
1004                     mb[1], mb[2], mb[3]);
1005
1006                 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1007                 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1008                                 | vha->d_id.b.al_pa;
1009                 if (rscn_entry == host_pid) {
1010                         ql_dbg(ql_dbg_async, vha, 0x5014,
1011                             "Ignoring RSCN update to local host "
1012                             "port ID (%06x).\n", host_pid);
1013                         break;
1014                 }
1015
1016                 /* Ignore reserved bits from RSCN-payload. */
1017                 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1018
1019                 /* Skip RSCNs for virtual ports on the same physical port */
1020                 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1021                         break;
1022
1023                 /*
1024                  * Search for the rport related to this RSCN entry and mark it
1025                  * as lost.
1026                  */
1027                 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1028                         if (atomic_read(&fcport->state) != FCS_ONLINE)
1029                                 continue;
1030                         if (fcport->d_id.b24 == rscn_entry) {
1031                                 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1032                                 break;
1033                         }
1034                 }
1035
1036                 atomic_set(&vha->loop_down_timer, 0);
1037                 vha->flags.management_server_logged_in = 0;
1038
1039                 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1040                 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1041                 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1042                 break;
1043
1044         /* case MBA_RIO_RESPONSE: */
1045         case MBA_ZIO_RESPONSE:
1046                 ql_dbg(ql_dbg_async, vha, 0x5015,
1047                     "[R|Z]IO update completion.\n");
1048
1049                 if (IS_FWI2_CAPABLE(ha))
1050                         qla24xx_process_response_queue(vha, rsp);
1051                 else
1052                         qla2x00_process_response_queue(rsp);
1053                 break;
1054
1055         case MBA_DISCARD_RND_FRAME:
1056                 ql_dbg(ql_dbg_async, vha, 0x5016,
1057                     "Discard RND Frame -- %04x %04x %04x.\n",
1058                     mb[1], mb[2], mb[3]);
1059                 break;
1060
1061         case MBA_TRACE_NOTIFICATION:
1062                 ql_dbg(ql_dbg_async, vha, 0x5017,
1063                     "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1064                 break;
1065
1066         case MBA_ISP84XX_ALERT:
1067                 ql_dbg(ql_dbg_async, vha, 0x5018,
1068                     "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1069                     mb[1], mb[2], mb[3]);
1070
1071                 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1072                 switch (mb[1]) {
1073                 case A84_PANIC_RECOVERY:
1074                         ql_log(ql_log_info, vha, 0x5019,
1075                             "Alert 84XX: panic recovery %04x %04x.\n",
1076                             mb[2], mb[3]);
1077                         break;
1078                 case A84_OP_LOGIN_COMPLETE:
1079                         ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1080                         ql_log(ql_log_info, vha, 0x501a,
1081                             "Alert 84XX: firmware version %x.\n",
1082                             ha->cs84xx->op_fw_version);
1083                         break;
1084                 case A84_DIAG_LOGIN_COMPLETE:
1085                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1086                         ql_log(ql_log_info, vha, 0x501b,
1087                             "Alert 84XX: diagnostic firmware version %x.\n",
1088                             ha->cs84xx->diag_fw_version);
1089                         break;
1090                 case A84_GOLD_LOGIN_COMPLETE:
1091                         ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1092                         ha->cs84xx->fw_update = 1;
1093                         ql_log(ql_log_info, vha, 0x501c,
1094                             "Alert 84XX: gold firmware version %x.\n",
1095                             ha->cs84xx->gold_fw_version);
1096                         break;
1097                 default:
1098                         ql_log(ql_log_warn, vha, 0x501d,
1099                             "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1100                             mb[1], mb[2], mb[3]);
1101                 }
1102                 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1103                 break;
1104         case MBA_DCBX_START:
1105                 ql_dbg(ql_dbg_async, vha, 0x501e,
1106                     "DCBX Started -- %04x %04x %04x.\n",
1107                     mb[1], mb[2], mb[3]);
1108                 break;
1109         case MBA_DCBX_PARAM_UPDATE:
1110                 ql_dbg(ql_dbg_async, vha, 0x501f,
1111                     "DCBX Parameters Updated -- %04x %04x %04x.\n",
1112                     mb[1], mb[2], mb[3]);
1113                 break;
1114         case MBA_FCF_CONF_ERR:
1115                 ql_dbg(ql_dbg_async, vha, 0x5020,
1116                     "FCF Configuration Error -- %04x %04x %04x.\n",
1117                     mb[1], mb[2], mb[3]);
1118                 break;
1119         case MBA_IDC_NOTIFY:
1120                 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1121                         mb[4] = RD_REG_WORD(&reg24->mailbox4);
1122                         if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1123                             (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1124                             (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1125                                 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1126                                 /*
1127                                  * Extend loop down timer since port is active.
1128                                  */
1129                                 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1130                                         atomic_set(&vha->loop_down_timer,
1131                                             LOOP_DOWN_TIME);
1132                                 qla2xxx_wake_dpc(vha);
1133                         }
1134                 }
1135         case MBA_IDC_COMPLETE:
1136                 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1137                         complete(&ha->lb_portup_comp);
1138                 /* Fallthru */
1139         case MBA_IDC_TIME_EXT:
1140                 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1141                     IS_QLA8044(ha))
1142                         qla81xx_idc_event(vha, mb[0], mb[1]);
1143                 break;
1144
1145         case MBA_IDC_AEN:
1146                 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1147                 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1148                 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1149                 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1150                 qla83xx_handle_8200_aen(vha, mb);
1151                 break;
1152
1153         case MBA_DPORT_DIAGNOSTICS:
1154                 ql_dbg(ql_dbg_async, vha, 0x5052,
1155                     "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
1156                     mb[1] == 0 ? "start" :
1157                     mb[1] == 1 ? "done (ok)" :
1158                     mb[1] == 2 ? "done (error)" : "other");
1159                 break;
1160
1161         default:
1162                 ql_dbg(ql_dbg_async, vha, 0x5057,
1163                     "Unknown AEN:%04x %04x %04x %04x\n",
1164                     mb[0], mb[1], mb[2], mb[3]);
1165         }
1166
1167         qlt_async_event(mb[0], vha, mb);
1168
1169         if (!vha->vp_idx && ha->num_vhosts)
1170                 qla2x00_alert_all_vps(rsp, mb);
1171 }
1172
1173 /**
1174  * qla2x00_process_completed_request() - Process a Fast Post response.
1175  * @ha: SCSI driver HA context
1176  * @index: SRB index
1177  */
1178 void
1179 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1180                                   struct req_que *req, uint32_t index)
1181 {
1182         srb_t *sp;
1183         struct qla_hw_data *ha = vha->hw;
1184
1185         /* Validate handle. */
1186         if (index >= req->num_outstanding_cmds) {
1187                 ql_log(ql_log_warn, vha, 0x3014,
1188                     "Invalid SCSI command index (%x).\n", index);
1189
1190                 if (IS_P3P_TYPE(ha))
1191                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1192                 else
1193                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1194                 return;
1195         }
1196
1197         sp = req->outstanding_cmds[index];
1198         if (sp) {
1199                 /* Free outstanding command slot. */
1200                 req->outstanding_cmds[index] = NULL;
1201
1202                 /* Save ISP completion status */
1203                 sp->done(ha, sp, DID_OK << 16);
1204         } else {
1205                 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1206
1207                 if (IS_P3P_TYPE(ha))
1208                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1209                 else
1210                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1211         }
1212 }
1213
1214 srb_t *
1215 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1216     struct req_que *req, void *iocb)
1217 {
1218         struct qla_hw_data *ha = vha->hw;
1219         sts_entry_t *pkt = iocb;
1220         srb_t *sp = NULL;
1221         uint16_t index;
1222
1223         index = LSW(pkt->handle);
1224         if (index >= req->num_outstanding_cmds) {
1225                 ql_log(ql_log_warn, vha, 0x5031,
1226                     "Invalid command index (%x).\n", index);
1227                 if (IS_P3P_TYPE(ha))
1228                         set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1229                 else
1230                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1231                 goto done;
1232         }
1233         sp = req->outstanding_cmds[index];
1234         if (!sp) {
1235                 ql_log(ql_log_warn, vha, 0x5032,
1236                     "Invalid completion handle (%x) -- timed-out.\n", index);
1237                 return sp;
1238         }
1239         if (sp->handle != index) {
1240                 ql_log(ql_log_warn, vha, 0x5033,
1241                     "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1242                 return NULL;
1243         }
1244
1245         req->outstanding_cmds[index] = NULL;
1246
1247 done:
1248         return sp;
1249 }
1250
1251 static void
1252 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1253     struct mbx_entry *mbx)
1254 {
1255         const char func[] = "MBX-IOCB";
1256         const char *type;
1257         fc_port_t *fcport;
1258         srb_t *sp;
1259         struct srb_iocb *lio;
1260         uint16_t *data;
1261         uint16_t status;
1262
1263         sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1264         if (!sp)
1265                 return;
1266
1267         lio = &sp->u.iocb_cmd;
1268         type = sp->name;
1269         fcport = sp->fcport;
1270         data = lio->u.logio.data;
1271
1272         data[0] = MBS_COMMAND_ERROR;
1273         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1274             QLA_LOGIO_LOGIN_RETRIED : 0;
1275         if (mbx->entry_status) {
1276                 ql_dbg(ql_dbg_async, vha, 0x5043,
1277                     "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1278                     "entry-status=%x status=%x state-flag=%x "
1279                     "status-flags=%x.\n", type, sp->handle,
1280                     fcport->d_id.b.domain, fcport->d_id.b.area,
1281                     fcport->d_id.b.al_pa, mbx->entry_status,
1282                     le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1283                     le16_to_cpu(mbx->status_flags));
1284
1285                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1286                     (uint8_t *)mbx, sizeof(*mbx));
1287
1288                 goto logio_done;
1289         }
1290
1291         status = le16_to_cpu(mbx->status);
1292         if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1293             le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1294                 status = 0;
1295         if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1296                 ql_dbg(ql_dbg_async, vha, 0x5045,
1297                     "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1298                     type, sp->handle, fcport->d_id.b.domain,
1299                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1300                     le16_to_cpu(mbx->mb1));
1301
1302                 data[0] = MBS_COMMAND_COMPLETE;
1303                 if (sp->type == SRB_LOGIN_CMD) {
1304                         fcport->port_type = FCT_TARGET;
1305                         if (le16_to_cpu(mbx->mb1) & BIT_0)
1306                                 fcport->port_type = FCT_INITIATOR;
1307                         else if (le16_to_cpu(mbx->mb1) & BIT_1)
1308                                 fcport->flags |= FCF_FCP2_DEVICE;
1309                 }
1310                 goto logio_done;
1311         }
1312
1313         data[0] = le16_to_cpu(mbx->mb0);
1314         switch (data[0]) {
1315         case MBS_PORT_ID_USED:
1316                 data[1] = le16_to_cpu(mbx->mb1);
1317                 break;
1318         case MBS_LOOP_ID_USED:
1319                 break;
1320         default:
1321                 data[0] = MBS_COMMAND_ERROR;
1322                 break;
1323         }
1324
1325         ql_log(ql_log_warn, vha, 0x5046,
1326             "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1327             "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1328             fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1329             status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1330             le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1331             le16_to_cpu(mbx->mb7));
1332
1333 logio_done:
1334         sp->done(vha, sp, 0);
1335 }
1336
1337 static void
1338 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1339     sts_entry_t *pkt, int iocb_type)
1340 {
1341         const char func[] = "CT_IOCB";
1342         const char *type;
1343         srb_t *sp;
1344         struct fc_bsg_job *bsg_job;
1345         uint16_t comp_status;
1346         int res;
1347
1348         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1349         if (!sp)
1350                 return;
1351
1352         bsg_job = sp->u.bsg_job;
1353
1354         type = "ct pass-through";
1355
1356         comp_status = le16_to_cpu(pkt->comp_status);
1357
1358         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1359          * fc payload  to the caller
1360          */
1361         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1362         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1363
1364         if (comp_status != CS_COMPLETE) {
1365                 if (comp_status == CS_DATA_UNDERRUN) {
1366                         res = DID_OK << 16;
1367                         bsg_job->reply->reply_payload_rcv_len =
1368                             le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1369
1370                         ql_log(ql_log_warn, vha, 0x5048,
1371                             "CT pass-through-%s error "
1372                             "comp_status-status=0x%x total_byte = 0x%x.\n",
1373                             type, comp_status,
1374                             bsg_job->reply->reply_payload_rcv_len);
1375                 } else {
1376                         ql_log(ql_log_warn, vha, 0x5049,
1377                             "CT pass-through-%s error "
1378                             "comp_status-status=0x%x.\n", type, comp_status);
1379                         res = DID_ERROR << 16;
1380                         bsg_job->reply->reply_payload_rcv_len = 0;
1381                 }
1382                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1383                     (uint8_t *)pkt, sizeof(*pkt));
1384         } else {
1385                 res = DID_OK << 16;
1386                 bsg_job->reply->reply_payload_rcv_len =
1387                     bsg_job->reply_payload.payload_len;
1388                 bsg_job->reply_len = 0;
1389         }
1390
1391         sp->done(vha, sp, res);
1392 }
1393
1394 static void
1395 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1396     struct sts_entry_24xx *pkt, int iocb_type)
1397 {
1398         const char func[] = "ELS_CT_IOCB";
1399         const char *type;
1400         srb_t *sp;
1401         struct fc_bsg_job *bsg_job;
1402         uint16_t comp_status;
1403         uint32_t fw_status[3];
1404         uint8_t* fw_sts_ptr;
1405         int res;
1406
1407         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1408         if (!sp)
1409                 return;
1410         bsg_job = sp->u.bsg_job;
1411
1412         type = NULL;
1413         switch (sp->type) {
1414         case SRB_ELS_CMD_RPT:
1415         case SRB_ELS_CMD_HST:
1416                 type = "els";
1417                 break;
1418         case SRB_CT_CMD:
1419                 type = "ct pass-through";
1420                 break;
1421         case SRB_ELS_DCMD:
1422                 type = "Driver ELS logo";
1423                 ql_dbg(ql_dbg_user, vha, 0x5047,
1424                     "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1425                 sp->done(vha, sp, 0);
1426                 return;
1427         default:
1428                 ql_dbg(ql_dbg_user, vha, 0x503e,
1429                     "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1430                 return;
1431         }
1432
1433         comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1434         fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1435         fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1436
1437         /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1438          * fc payload  to the caller
1439          */
1440         bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1441         bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1442
1443         if (comp_status != CS_COMPLETE) {
1444                 if (comp_status == CS_DATA_UNDERRUN) {
1445                         res = DID_OK << 16;
1446                         bsg_job->reply->reply_payload_rcv_len =
1447                             le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1448
1449                         ql_dbg(ql_dbg_user, vha, 0x503f,
1450                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1451                             "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1452                             type, sp->handle, comp_status, fw_status[1], fw_status[2],
1453                             le16_to_cpu(((struct els_sts_entry_24xx *)
1454                                 pkt)->total_byte_count));
1455                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1456                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1457                 }
1458                 else {
1459                         ql_dbg(ql_dbg_user, vha, 0x5040,
1460                             "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1461                             "error subcode 1=0x%x error subcode 2=0x%x.\n",
1462                             type, sp->handle, comp_status,
1463                             le16_to_cpu(((struct els_sts_entry_24xx *)
1464                                 pkt)->error_subcode_1),
1465                             le16_to_cpu(((struct els_sts_entry_24xx *)
1466                                     pkt)->error_subcode_2));
1467                         res = DID_ERROR << 16;
1468                         bsg_job->reply->reply_payload_rcv_len = 0;
1469                         fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1470                         memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1471                 }
1472                 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1473                                 (uint8_t *)pkt, sizeof(*pkt));
1474         }
1475         else {
1476                 res =  DID_OK << 16;
1477                 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1478                 bsg_job->reply_len = 0;
1479         }
1480
1481         sp->done(vha, sp, res);
1482 }
1483
1484 static void
1485 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1486     struct logio_entry_24xx *logio)
1487 {
1488         const char func[] = "LOGIO-IOCB";
1489         const char *type;
1490         fc_port_t *fcport;
1491         srb_t *sp;
1492         struct srb_iocb *lio;
1493         uint16_t *data;
1494         uint32_t iop[2];
1495
1496         sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1497         if (!sp)
1498                 return;
1499
1500         lio = &sp->u.iocb_cmd;
1501         type = sp->name;
1502         fcport = sp->fcport;
1503         data = lio->u.logio.data;
1504
1505         data[0] = MBS_COMMAND_ERROR;
1506         data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1507                 QLA_LOGIO_LOGIN_RETRIED : 0;
1508         if (logio->entry_status) {
1509                 ql_log(ql_log_warn, fcport->vha, 0x5034,
1510                     "Async-%s error entry - hdl=%x"
1511                     "portid=%02x%02x%02x entry-status=%x.\n",
1512                     type, sp->handle, fcport->d_id.b.domain,
1513                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1514                     logio->entry_status);
1515                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1516                     (uint8_t *)logio, sizeof(*logio));
1517
1518                 goto logio_done;
1519         }
1520
1521         if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1522                 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1523                     "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1524                     "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1525                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
1526                     le32_to_cpu(logio->io_parameter[0]));
1527
1528                 data[0] = MBS_COMMAND_COMPLETE;
1529                 if (sp->type != SRB_LOGIN_CMD)
1530                         goto logio_done;
1531
1532                 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1533                 if (iop[0] & BIT_4) {
1534                         fcport->port_type = FCT_TARGET;
1535                         if (iop[0] & BIT_8)
1536                                 fcport->flags |= FCF_FCP2_DEVICE;
1537                 } else if (iop[0] & BIT_5)
1538                         fcport->port_type = FCT_INITIATOR;
1539
1540                 if (iop[0] & BIT_7)
1541                         fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1542
1543                 if (logio->io_parameter[7] || logio->io_parameter[8])
1544                         fcport->supported_classes |= FC_COS_CLASS2;
1545                 if (logio->io_parameter[9] || logio->io_parameter[10])
1546                         fcport->supported_classes |= FC_COS_CLASS3;
1547
1548                 goto logio_done;
1549         }
1550
1551         iop[0] = le32_to_cpu(logio->io_parameter[0]);
1552         iop[1] = le32_to_cpu(logio->io_parameter[1]);
1553         switch (iop[0]) {
1554         case LSC_SCODE_PORTID_USED:
1555                 data[0] = MBS_PORT_ID_USED;
1556                 data[1] = LSW(iop[1]);
1557                 break;
1558         case LSC_SCODE_NPORT_USED:
1559                 data[0] = MBS_LOOP_ID_USED;
1560                 break;
1561         default:
1562                 data[0] = MBS_COMMAND_ERROR;
1563                 break;
1564         }
1565
1566         ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1567             "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1568             "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1569             fcport->d_id.b.area, fcport->d_id.b.al_pa,
1570             le16_to_cpu(logio->comp_status),
1571             le32_to_cpu(logio->io_parameter[0]),
1572             le32_to_cpu(logio->io_parameter[1]));
1573
1574 logio_done:
1575         sp->done(vha, sp, 0);
1576 }
1577
1578 static void
1579 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1580 {
1581         const char func[] = "TMF-IOCB";
1582         const char *type;
1583         fc_port_t *fcport;
1584         srb_t *sp;
1585         struct srb_iocb *iocb;
1586         struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1587
1588         sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1589         if (!sp)
1590                 return;
1591
1592         iocb = &sp->u.iocb_cmd;
1593         type = sp->name;
1594         fcport = sp->fcport;
1595         iocb->u.tmf.data = QLA_SUCCESS;
1596
1597         if (sts->entry_status) {
1598                 ql_log(ql_log_warn, fcport->vha, 0x5038,
1599                     "Async-%s error - hdl=%x entry-status(%x).\n",
1600                     type, sp->handle, sts->entry_status);
1601                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1602         } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1603                 ql_log(ql_log_warn, fcport->vha, 0x5039,
1604                     "Async-%s error - hdl=%x completion status(%x).\n",
1605                     type, sp->handle, sts->comp_status);
1606                 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1607         } else if ((le16_to_cpu(sts->scsi_status) &
1608             SS_RESPONSE_INFO_LEN_VALID)) {
1609                 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1610                         ql_log(ql_log_warn, fcport->vha, 0x503b,
1611                             "Async-%s error - hdl=%x not enough response(%d).\n",
1612                             type, sp->handle, sts->rsp_data_len);
1613                 } else if (sts->data[3]) {
1614                         ql_log(ql_log_warn, fcport->vha, 0x503c,
1615                             "Async-%s error - hdl=%x response(%x).\n",
1616                             type, sp->handle, sts->data[3]);
1617                         iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1618                 }
1619         }
1620
1621         if (iocb->u.tmf.data != QLA_SUCCESS)
1622                 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1623                     (uint8_t *)sts, sizeof(*sts));
1624
1625         sp->done(vha, sp, 0);
1626 }
1627
1628 /**
1629  * qla2x00_process_response_queue() - Process response queue entries.
1630  * @ha: SCSI driver HA context
1631  */
1632 void
1633 qla2x00_process_response_queue(struct rsp_que *rsp)
1634 {
1635         struct scsi_qla_host *vha;
1636         struct qla_hw_data *ha = rsp->hw;
1637         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1638         sts_entry_t     *pkt;
1639         uint16_t        handle_cnt;
1640         uint16_t        cnt;
1641
1642         vha = pci_get_drvdata(ha->pdev);
1643
1644         if (!vha->flags.online)
1645                 return;
1646
1647         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1648                 pkt = (sts_entry_t *)rsp->ring_ptr;
1649
1650                 rsp->ring_index++;
1651                 if (rsp->ring_index == rsp->length) {
1652                         rsp->ring_index = 0;
1653                         rsp->ring_ptr = rsp->ring;
1654                 } else {
1655                         rsp->ring_ptr++;
1656                 }
1657
1658                 if (pkt->entry_status != 0) {
1659                         qla2x00_error_entry(vha, rsp, pkt);
1660                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1661                         wmb();
1662                         continue;
1663                 }
1664
1665                 switch (pkt->entry_type) {
1666                 case STATUS_TYPE:
1667                         qla2x00_status_entry(vha, rsp, pkt);
1668                         break;
1669                 case STATUS_TYPE_21:
1670                         handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1671                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1672                                 qla2x00_process_completed_request(vha, rsp->req,
1673                                     ((sts21_entry_t *)pkt)->handle[cnt]);
1674                         }
1675                         break;
1676                 case STATUS_TYPE_22:
1677                         handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1678                         for (cnt = 0; cnt < handle_cnt; cnt++) {
1679                                 qla2x00_process_completed_request(vha, rsp->req,
1680                                     ((sts22_entry_t *)pkt)->handle[cnt]);
1681                         }
1682                         break;
1683                 case STATUS_CONT_TYPE:
1684                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1685                         break;
1686                 case MBX_IOCB_TYPE:
1687                         qla2x00_mbx_iocb_entry(vha, rsp->req,
1688                             (struct mbx_entry *)pkt);
1689                         break;
1690                 case CT_IOCB_TYPE:
1691                         qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1692                         break;
1693                 default:
1694                         /* Type Not Supported. */
1695                         ql_log(ql_log_warn, vha, 0x504a,
1696                             "Received unknown response pkt type %x "
1697                             "entry status=%x.\n",
1698                             pkt->entry_type, pkt->entry_status);
1699                         break;
1700                 }
1701                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1702                 wmb();
1703         }
1704
1705         /* Adjust ring index */
1706         WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1707 }
1708
1709 static inline void
1710 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1711                      uint32_t sense_len, struct rsp_que *rsp, int res)
1712 {
1713         struct scsi_qla_host *vha = sp->fcport->vha;
1714         struct scsi_cmnd *cp = GET_CMD_SP(sp);
1715         uint32_t track_sense_len;
1716
1717         if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1718                 sense_len = SCSI_SENSE_BUFFERSIZE;
1719
1720         SET_CMD_SENSE_LEN(sp, sense_len);
1721         SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1722         track_sense_len = sense_len;
1723
1724         if (sense_len > par_sense_len)
1725                 sense_len = par_sense_len;
1726
1727         memcpy(cp->sense_buffer, sense_data, sense_len);
1728
1729         SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1730         track_sense_len -= sense_len;
1731         SET_CMD_SENSE_LEN(sp, track_sense_len);
1732
1733         if (track_sense_len != 0) {
1734                 rsp->status_srb = sp;
1735                 cp->result = res;
1736         }
1737
1738         if (sense_len) {
1739                 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1740                     "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1741                     sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1742                     cp);
1743                 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1744                     cp->sense_buffer, sense_len);
1745         }
1746 }
1747
1748 struct scsi_dif_tuple {
1749         __be16 guard;       /* Checksum */
1750         __be16 app_tag;         /* APPL identifier */
1751         __be32 ref_tag;         /* Target LBA or indirect LBA */
1752 };
1753
1754 /*
1755  * Checks the guard or meta-data for the type of error
1756  * detected by the HBA. In case of errors, we set the
1757  * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1758  * to indicate to the kernel that the HBA detected error.
1759  */
1760 static inline int
1761 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1762 {
1763         struct scsi_qla_host *vha = sp->fcport->vha;
1764         struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1765         uint8_t         *ap = &sts24->data[12];
1766         uint8_t         *ep = &sts24->data[20];
1767         uint32_t        e_ref_tag, a_ref_tag;
1768         uint16_t        e_app_tag, a_app_tag;
1769         uint16_t        e_guard, a_guard;
1770
1771         /*
1772          * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1773          * would make guard field appear at offset 2
1774          */
1775         a_guard   = le16_to_cpu(*(uint16_t *)(ap + 2));
1776         a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1777         a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1778         e_guard   = le16_to_cpu(*(uint16_t *)(ep + 2));
1779         e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1780         e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1781
1782         ql_dbg(ql_dbg_io, vha, 0x3023,
1783             "iocb(s) %p Returned STATUS.\n", sts24);
1784
1785         ql_dbg(ql_dbg_io, vha, 0x3024,
1786             "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1787             " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1788             " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1789             cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1790             a_app_tag, e_app_tag, a_guard, e_guard);
1791
1792         /*
1793          * Ignore sector if:
1794          * For type     3: ref & app tag is all 'f's
1795          * For type 0,1,2: app tag is all 'f's
1796          */
1797         if ((a_app_tag == 0xffff) &&
1798             ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1799              (a_ref_tag == 0xffffffff))) {
1800                 uint32_t blocks_done, resid;
1801                 sector_t lba_s = scsi_get_lba(cmd);
1802
1803                 /* 2TB boundary case covered automatically with this */
1804                 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1805
1806                 resid = scsi_bufflen(cmd) - (blocks_done *
1807                     cmd->device->sector_size);
1808
1809                 scsi_set_resid(cmd, resid);
1810                 cmd->result = DID_OK << 16;
1811
1812                 /* Update protection tag */
1813                 if (scsi_prot_sg_count(cmd)) {
1814                         uint32_t i, j = 0, k = 0, num_ent;
1815                         struct scatterlist *sg;
1816                         struct sd_dif_tuple *spt;
1817
1818                         /* Patch the corresponding protection tags */
1819                         scsi_for_each_prot_sg(cmd, sg,
1820                             scsi_prot_sg_count(cmd), i) {
1821                                 num_ent = sg_dma_len(sg) / 8;
1822                                 if (k + num_ent < blocks_done) {
1823                                         k += num_ent;
1824                                         continue;
1825                                 }
1826                                 j = blocks_done - k - 1;
1827                                 k = blocks_done;
1828                                 break;
1829                         }
1830
1831                         if (k != blocks_done) {
1832                                 ql_log(ql_log_warn, vha, 0x302f,
1833                                     "unexpected tag values tag:lba=%x:%llx)\n",
1834                                     e_ref_tag, (unsigned long long)lba_s);
1835                                 return 1;
1836                         }
1837
1838                         spt = page_address(sg_page(sg)) + sg->offset;
1839                         spt += j;
1840
1841                         spt->app_tag = 0xffff;
1842                         if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1843                                 spt->ref_tag = 0xffffffff;
1844                 }
1845
1846                 return 0;
1847         }
1848
1849         /* check guard */
1850         if (e_guard != a_guard) {
1851                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1852                     0x10, 0x1);
1853                 set_driver_byte(cmd, DRIVER_SENSE);
1854                 set_host_byte(cmd, DID_ABORT);
1855                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1856                 return 1;
1857         }
1858
1859         /* check ref tag */
1860         if (e_ref_tag != a_ref_tag) {
1861                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1862                     0x10, 0x3);
1863                 set_driver_byte(cmd, DRIVER_SENSE);
1864                 set_host_byte(cmd, DID_ABORT);
1865                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1866                 return 1;
1867         }
1868
1869         /* check appl tag */
1870         if (e_app_tag != a_app_tag) {
1871                 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1872                     0x10, 0x2);
1873                 set_driver_byte(cmd, DRIVER_SENSE);
1874                 set_host_byte(cmd, DID_ABORT);
1875                 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1876                 return 1;
1877         }
1878
1879         return 1;
1880 }
1881
1882 static void
1883 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1884                                   struct req_que *req, uint32_t index)
1885 {
1886         struct qla_hw_data *ha = vha->hw;
1887         srb_t *sp;
1888         uint16_t        comp_status;
1889         uint16_t        scsi_status;
1890         uint16_t thread_id;
1891         uint32_t rval = EXT_STATUS_OK;
1892         struct fc_bsg_job *bsg_job = NULL;
1893         sts_entry_t *sts;
1894         struct sts_entry_24xx *sts24;
1895         sts = (sts_entry_t *) pkt;
1896         sts24 = (struct sts_entry_24xx *) pkt;
1897
1898         /* Validate handle. */
1899         if (index >= req->num_outstanding_cmds) {
1900                 ql_log(ql_log_warn, vha, 0x70af,
1901                     "Invalid SCSI completion handle 0x%x.\n", index);
1902                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1903                 return;
1904         }
1905
1906         sp = req->outstanding_cmds[index];
1907         if (sp) {
1908                 /* Free outstanding command slot. */
1909                 req->outstanding_cmds[index] = NULL;
1910                 bsg_job = sp->u.bsg_job;
1911         } else {
1912                 ql_log(ql_log_warn, vha, 0x70b0,
1913                     "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1914                     req->id, index);
1915
1916                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1917                 return;
1918         }
1919
1920         if (IS_FWI2_CAPABLE(ha)) {
1921                 comp_status = le16_to_cpu(sts24->comp_status);
1922                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1923         } else {
1924                 comp_status = le16_to_cpu(sts->comp_status);
1925                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1926         }
1927
1928         thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1929         switch (comp_status) {
1930         case CS_COMPLETE:
1931                 if (scsi_status == 0) {
1932                         bsg_job->reply->reply_payload_rcv_len =
1933                                         bsg_job->reply_payload.payload_len;
1934                         vha->qla_stats.input_bytes +=
1935                                 bsg_job->reply->reply_payload_rcv_len;
1936                         vha->qla_stats.input_requests++;
1937                         rval = EXT_STATUS_OK;
1938                 }
1939                 goto done;
1940
1941         case CS_DATA_OVERRUN:
1942                 ql_dbg(ql_dbg_user, vha, 0x70b1,
1943                     "Command completed with date overrun thread_id=%d\n",
1944                     thread_id);
1945                 rval = EXT_STATUS_DATA_OVERRUN;
1946                 break;
1947
1948         case CS_DATA_UNDERRUN:
1949                 ql_dbg(ql_dbg_user, vha, 0x70b2,
1950                     "Command completed with date underrun thread_id=%d\n",
1951                     thread_id);
1952                 rval = EXT_STATUS_DATA_UNDERRUN;
1953                 break;
1954         case CS_BIDIR_RD_OVERRUN:
1955                 ql_dbg(ql_dbg_user, vha, 0x70b3,
1956                     "Command completed with read data overrun thread_id=%d\n",
1957                     thread_id);
1958                 rval = EXT_STATUS_DATA_OVERRUN;
1959                 break;
1960
1961         case CS_BIDIR_RD_WR_OVERRUN:
1962                 ql_dbg(ql_dbg_user, vha, 0x70b4,
1963                     "Command completed with read and write data overrun "
1964                     "thread_id=%d\n", thread_id);
1965                 rval = EXT_STATUS_DATA_OVERRUN;
1966                 break;
1967
1968         case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1969                 ql_dbg(ql_dbg_user, vha, 0x70b5,
1970                     "Command completed with read data over and write data "
1971                     "underrun thread_id=%d\n", thread_id);
1972                 rval = EXT_STATUS_DATA_OVERRUN;
1973                 break;
1974
1975         case CS_BIDIR_RD_UNDERRUN:
1976                 ql_dbg(ql_dbg_user, vha, 0x70b6,
1977                     "Command completed with read data data underrun "
1978                     "thread_id=%d\n", thread_id);
1979                 rval = EXT_STATUS_DATA_UNDERRUN;
1980                 break;
1981
1982         case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1983                 ql_dbg(ql_dbg_user, vha, 0x70b7,
1984                     "Command completed with read data under and write data "
1985                     "overrun thread_id=%d\n", thread_id);
1986                 rval = EXT_STATUS_DATA_UNDERRUN;
1987                 break;
1988
1989         case CS_BIDIR_RD_WR_UNDERRUN:
1990                 ql_dbg(ql_dbg_user, vha, 0x70b8,
1991                     "Command completed with read and write data underrun "
1992                     "thread_id=%d\n", thread_id);
1993                 rval = EXT_STATUS_DATA_UNDERRUN;
1994                 break;
1995
1996         case CS_BIDIR_DMA:
1997                 ql_dbg(ql_dbg_user, vha, 0x70b9,
1998                     "Command completed with data DMA error thread_id=%d\n",
1999                     thread_id);
2000                 rval = EXT_STATUS_DMA_ERR;
2001                 break;
2002
2003         case CS_TIMEOUT:
2004                 ql_dbg(ql_dbg_user, vha, 0x70ba,
2005                     "Command completed with timeout thread_id=%d\n",
2006                     thread_id);
2007                 rval = EXT_STATUS_TIMEOUT;
2008                 break;
2009         default:
2010                 ql_dbg(ql_dbg_user, vha, 0x70bb,
2011                     "Command completed with completion status=0x%x "
2012                     "thread_id=%d\n", comp_status, thread_id);
2013                 rval = EXT_STATUS_ERR;
2014                 break;
2015         }
2016         bsg_job->reply->reply_payload_rcv_len = 0;
2017
2018 done:
2019         /* Return the vendor specific reply to API */
2020         bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2021         bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2022         /* Always return DID_OK, bsg will send the vendor specific response
2023          * in this case only */
2024         sp->done(vha, sp, (DID_OK << 6));
2025
2026 }
2027
2028 /**
2029  * qla2x00_status_entry() - Process a Status IOCB entry.
2030  * @ha: SCSI driver HA context
2031  * @pkt: Entry pointer
2032  */
2033 static void
2034 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2035 {
2036         srb_t           *sp;
2037         fc_port_t       *fcport;
2038         struct scsi_cmnd *cp;
2039         sts_entry_t *sts;
2040         struct sts_entry_24xx *sts24;
2041         uint16_t        comp_status;
2042         uint16_t        scsi_status;
2043         uint16_t        ox_id;
2044         uint8_t         lscsi_status;
2045         int32_t         resid;
2046         uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2047             fw_resid_len;
2048         uint8_t         *rsp_info, *sense_data;
2049         struct qla_hw_data *ha = vha->hw;
2050         uint32_t handle;
2051         uint16_t que;
2052         struct req_que *req;
2053         int logit = 1;
2054         int res = 0;
2055         uint16_t state_flags = 0;
2056         uint16_t retry_delay = 0;
2057
2058         sts = (sts_entry_t *) pkt;
2059         sts24 = (struct sts_entry_24xx *) pkt;
2060         if (IS_FWI2_CAPABLE(ha)) {
2061                 comp_status = le16_to_cpu(sts24->comp_status);
2062                 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2063                 state_flags = le16_to_cpu(sts24->state_flags);
2064         } else {
2065                 comp_status = le16_to_cpu(sts->comp_status);
2066                 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2067         }
2068         handle = (uint32_t) LSW(sts->handle);
2069         que = MSW(sts->handle);
2070         req = ha->req_q_map[que];
2071
2072         /* Check for invalid queue pointer */
2073         if (req == NULL ||
2074             que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2075                 ql_dbg(ql_dbg_io, vha, 0x3059,
2076                     "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2077                     "que=%u.\n", sts->handle, req, que);
2078                 return;
2079         }
2080
2081         /* Validate handle. */
2082         if (handle < req->num_outstanding_cmds) {
2083                 sp = req->outstanding_cmds[handle];
2084                 if (!sp) {
2085                         ql_dbg(ql_dbg_io, vha, 0x3075,
2086                             "%s(%ld): Already returned command for status handle (0x%x).\n",
2087                             __func__, vha->host_no, sts->handle);
2088                         return;
2089                 }
2090         } else {
2091                 ql_dbg(ql_dbg_io, vha, 0x3017,
2092                     "Invalid status handle, out of range (0x%x).\n",
2093                     sts->handle);
2094
2095                 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2096                         if (IS_P3P_TYPE(ha))
2097                                 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2098                         else
2099                                 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2100                         qla2xxx_wake_dpc(vha);
2101                 }
2102                 return;
2103         }
2104
2105         if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2106                 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2107                 return;
2108         }
2109
2110         /* Task Management completion. */
2111         if (sp->type == SRB_TM_CMD) {
2112                 qla24xx_tm_iocb_entry(vha, req, pkt);
2113                 return;
2114         }
2115
2116         /* Fast path completion. */
2117         if (comp_status == CS_COMPLETE && scsi_status == 0) {
2118                 qla2x00_process_completed_request(vha, req, handle);
2119
2120                 return;
2121         }
2122
2123         req->outstanding_cmds[handle] = NULL;
2124         cp = GET_CMD_SP(sp);
2125         if (cp == NULL) {
2126                 ql_dbg(ql_dbg_io, vha, 0x3018,
2127                     "Command already returned (0x%x/%p).\n",
2128                     sts->handle, sp);
2129
2130                 return;
2131         }
2132
2133         lscsi_status = scsi_status & STATUS_MASK;
2134
2135         fcport = sp->fcport;
2136
2137         ox_id = 0;
2138         sense_len = par_sense_len = rsp_info_len = resid_len =
2139             fw_resid_len = 0;
2140         if (IS_FWI2_CAPABLE(ha)) {
2141                 if (scsi_status & SS_SENSE_LEN_VALID)
2142                         sense_len = le32_to_cpu(sts24->sense_len);
2143                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2144                         rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2145                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2146                         resid_len = le32_to_cpu(sts24->rsp_residual_count);
2147                 if (comp_status == CS_DATA_UNDERRUN)
2148                         fw_resid_len = le32_to_cpu(sts24->residual_len);
2149                 rsp_info = sts24->data;
2150                 sense_data = sts24->data;
2151                 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2152                 ox_id = le16_to_cpu(sts24->ox_id);
2153                 par_sense_len = sizeof(sts24->data);
2154                 /* Valid values of the retry delay timer are 0x1-0xffef */
2155                 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2156                         retry_delay = sts24->retry_delay;
2157         } else {
2158                 if (scsi_status & SS_SENSE_LEN_VALID)
2159                         sense_len = le16_to_cpu(sts->req_sense_length);
2160                 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2161                         rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2162                 resid_len = le32_to_cpu(sts->residual_length);
2163                 rsp_info = sts->rsp_info;
2164                 sense_data = sts->req_sense_data;
2165                 par_sense_len = sizeof(sts->req_sense_data);
2166         }
2167
2168         /* Check for any FCP transport errors. */
2169         if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2170                 /* Sense data lies beyond any FCP RESPONSE data. */
2171                 if (IS_FWI2_CAPABLE(ha)) {
2172                         sense_data += rsp_info_len;
2173                         par_sense_len -= rsp_info_len;
2174                 }
2175                 if (rsp_info_len > 3 && rsp_info[3]) {
2176                         ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2177                             "FCP I/O protocol failure (0x%x/0x%x).\n",
2178                             rsp_info_len, rsp_info[3]);
2179
2180                         res = DID_BUS_BUSY << 16;
2181                         goto out;
2182                 }
2183         }
2184
2185         /* Check for overrun. */
2186         if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2187             scsi_status & SS_RESIDUAL_OVER)
2188                 comp_status = CS_DATA_OVERRUN;
2189
2190         /*
2191          * Check retry_delay_timer value if we receive a busy or
2192          * queue full.
2193          */
2194         if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2195             lscsi_status == SAM_STAT_BUSY)
2196                 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2197
2198         /*
2199          * Based on Host and scsi status generate status code for Linux
2200          */
2201         switch (comp_status) {
2202         case CS_COMPLETE:
2203         case CS_QUEUE_FULL:
2204                 if (scsi_status == 0) {
2205                         res = DID_OK << 16;
2206                         break;
2207                 }
2208                 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2209                         resid = resid_len;
2210                         scsi_set_resid(cp, resid);
2211
2212                         if (!lscsi_status &&
2213                             ((unsigned)(scsi_bufflen(cp) - resid) <
2214                              cp->underflow)) {
2215                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2216                                     "Mid-layer underflow "
2217                                     "detected (0x%x of 0x%x bytes).\n",
2218                                     resid, scsi_bufflen(cp));
2219
2220                                 res = DID_ERROR << 16;
2221                                 break;
2222                         }
2223                 }
2224                 res = DID_OK << 16 | lscsi_status;
2225
2226                 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2227                         ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2228                             "QUEUE FULL detected.\n");
2229                         break;
2230                 }
2231                 logit = 0;
2232                 if (lscsi_status != SS_CHECK_CONDITION)
2233                         break;
2234
2235                 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2236                 if (!(scsi_status & SS_SENSE_LEN_VALID))
2237                         break;
2238
2239                 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2240                     rsp, res);
2241                 break;
2242
2243         case CS_DATA_UNDERRUN:
2244                 /* Use F/W calculated residual length. */
2245                 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2246                 scsi_set_resid(cp, resid);
2247                 if (scsi_status & SS_RESIDUAL_UNDER) {
2248                         if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2249                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2250                                     "Dropped frame(s) detected "
2251                                     "(0x%x of 0x%x bytes).\n",
2252                                     resid, scsi_bufflen(cp));
2253
2254                                 res = DID_ERROR << 16 | lscsi_status;
2255                                 goto check_scsi_status;
2256                         }
2257
2258                         if (!lscsi_status &&
2259                             ((unsigned)(scsi_bufflen(cp) - resid) <
2260                             cp->underflow)) {
2261                                 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2262                                     "Mid-layer underflow "
2263                                     "detected (0x%x of 0x%x bytes).\n",
2264                                     resid, scsi_bufflen(cp));
2265
2266                                 res = DID_ERROR << 16;
2267                                 break;
2268                         }
2269                 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2270                             lscsi_status != SAM_STAT_BUSY) {
2271                         /*
2272                          * scsi status of task set and busy are considered to be
2273                          * task not completed.
2274                          */
2275
2276                         ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2277                             "Dropped frame(s) detected (0x%x "
2278                             "of 0x%x bytes).\n", resid,
2279                             scsi_bufflen(cp));
2280
2281                         res = DID_ERROR << 16 | lscsi_status;
2282                         goto check_scsi_status;
2283                 } else {
2284                         ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2285                             "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2286                             scsi_status, lscsi_status);
2287                 }
2288
2289                 res = DID_OK << 16 | lscsi_status;
2290                 logit = 0;
2291
2292 check_scsi_status:
2293                 /*
2294                  * Check to see if SCSI Status is non zero. If so report SCSI
2295                  * Status.
2296                  */
2297                 if (lscsi_status != 0) {
2298                         if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2299                                 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2300                                     "QUEUE FULL detected.\n");
2301                                 logit = 1;
2302                                 break;
2303                         }
2304                         if (lscsi_status != SS_CHECK_CONDITION)
2305                                 break;
2306
2307                         memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2308                         if (!(scsi_status & SS_SENSE_LEN_VALID))
2309                                 break;
2310
2311                         qla2x00_handle_sense(sp, sense_data, par_sense_len,
2312                             sense_len, rsp, res);
2313                 }
2314                 break;
2315
2316         case CS_PORT_LOGGED_OUT:
2317         case CS_PORT_CONFIG_CHG:
2318         case CS_PORT_BUSY:
2319         case CS_INCOMPLETE:
2320         case CS_PORT_UNAVAILABLE:
2321         case CS_TIMEOUT:
2322         case CS_RESET:
2323
2324                 /*
2325                  * We are going to have the fc class block the rport
2326                  * while we try to recover so instruct the mid layer
2327                  * to requeue until the class decides how to handle this.
2328                  */
2329                 res = DID_TRANSPORT_DISRUPTED << 16;
2330
2331                 if (comp_status == CS_TIMEOUT) {
2332                         if (IS_FWI2_CAPABLE(ha))
2333                                 break;
2334                         else if ((le16_to_cpu(sts->status_flags) &
2335                             SF_LOGOUT_SENT) == 0)
2336                                 break;
2337                 }
2338
2339                 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2340                     "Port to be marked lost on fcport=%02x%02x%02x, current "
2341                     "port state= %s.\n", fcport->d_id.b.domain,
2342                     fcport->d_id.b.area, fcport->d_id.b.al_pa,
2343                     port_state_str[atomic_read(&fcport->state)]);
2344
2345                 if (atomic_read(&fcport->state) == FCS_ONLINE)
2346                         qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2347                 break;
2348
2349         case CS_ABORTED:
2350                 res = DID_RESET << 16;
2351                 break;
2352
2353         case CS_DIF_ERROR:
2354                 logit = qla2x00_handle_dif_error(sp, sts24);
2355                 res = cp->result;
2356                 break;
2357
2358         case CS_TRANSPORT:
2359                 res = DID_ERROR << 16;
2360
2361                 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2362                         break;
2363
2364                 if (state_flags & BIT_4)
2365                         scmd_printk(KERN_WARNING, cp,
2366                             "Unsupported device '%s' found.\n",
2367                             cp->device->vendor);
2368                 break;
2369
2370         default:
2371                 res = DID_ERROR << 16;
2372                 break;
2373         }
2374
2375 out:
2376         if (logit)
2377                 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2378                     "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2379                     "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2380                     "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2381                     comp_status, scsi_status, res, vha->host_no,
2382                     cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2383                     fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2384                     cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2385                     resid_len, fw_resid_len, sp, cp);
2386
2387         if (rsp->status_srb == NULL)
2388                 sp->done(ha, sp, res);
2389 }
2390
2391 /**
2392  * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2393  * @ha: SCSI driver HA context
2394  * @pkt: Entry pointer
2395  *
2396  * Extended sense data.
2397  */
2398 static void
2399 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2400 {
2401         uint8_t sense_sz = 0;
2402         struct qla_hw_data *ha = rsp->hw;
2403         struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2404         srb_t *sp = rsp->status_srb;
2405         struct scsi_cmnd *cp;
2406         uint32_t sense_len;
2407         uint8_t *sense_ptr;
2408
2409         if (!sp || !GET_CMD_SENSE_LEN(sp))
2410                 return;
2411
2412         sense_len = GET_CMD_SENSE_LEN(sp);
2413         sense_ptr = GET_CMD_SENSE_PTR(sp);
2414
2415         cp = GET_CMD_SP(sp);
2416         if (cp == NULL) {
2417                 ql_log(ql_log_warn, vha, 0x3025,
2418                     "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2419
2420                 rsp->status_srb = NULL;
2421                 return;
2422         }
2423
2424         if (sense_len > sizeof(pkt->data))
2425                 sense_sz = sizeof(pkt->data);
2426         else
2427                 sense_sz = sense_len;
2428
2429         /* Move sense data. */
2430         if (IS_FWI2_CAPABLE(ha))
2431                 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2432         memcpy(sense_ptr, pkt->data, sense_sz);
2433         ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2434                 sense_ptr, sense_sz);
2435
2436         sense_len -= sense_sz;
2437         sense_ptr += sense_sz;
2438
2439         SET_CMD_SENSE_PTR(sp, sense_ptr);
2440         SET_CMD_SENSE_LEN(sp, sense_len);
2441
2442         /* Place command on done queue. */
2443         if (sense_len == 0) {
2444                 rsp->status_srb = NULL;
2445                 sp->done(ha, sp, cp->result);
2446         }
2447 }
2448
2449 /**
2450  * qla2x00_error_entry() - Process an error entry.
2451  * @ha: SCSI driver HA context
2452  * @pkt: Entry pointer
2453  */
2454 static void
2455 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2456 {
2457         srb_t *sp;
2458         struct qla_hw_data *ha = vha->hw;
2459         const char func[] = "ERROR-IOCB";
2460         uint16_t que = MSW(pkt->handle);
2461         struct req_que *req = NULL;
2462         int res = DID_ERROR << 16;
2463
2464         ql_dbg(ql_dbg_async, vha, 0x502a,
2465             "type of error status in response: 0x%x\n", pkt->entry_status);
2466
2467         if (que >= ha->max_req_queues || !ha->req_q_map[que])
2468                 goto fatal;
2469
2470         req = ha->req_q_map[que];
2471
2472         if (pkt->entry_status & RF_BUSY)
2473                 res = DID_BUS_BUSY << 16;
2474
2475         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2476         if (sp) {
2477                 sp->done(ha, sp, res);
2478                 return;
2479         }
2480 fatal:
2481         ql_log(ql_log_warn, vha, 0x5030,
2482             "Error entry - invalid handle/queue (%04x).\n", que);
2483 }
2484
2485 /**
2486  * qla24xx_mbx_completion() - Process mailbox command completions.
2487  * @ha: SCSI driver HA context
2488  * @mb0: Mailbox0 register
2489  */
2490 static void
2491 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2492 {
2493         uint16_t        cnt;
2494         uint32_t        mboxes;
2495         uint16_t __iomem *wptr;
2496         struct qla_hw_data *ha = vha->hw;
2497         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2498
2499         /* Read all mbox registers? */
2500         mboxes = (1 << ha->mbx_count) - 1;
2501         if (!ha->mcp)
2502                 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2503         else
2504                 mboxes = ha->mcp->in_mb;
2505
2506         /* Load return mailbox registers. */
2507         ha->flags.mbox_int = 1;
2508         ha->mailbox_out[0] = mb0;
2509         mboxes >>= 1;
2510         wptr = (uint16_t __iomem *)&reg->mailbox1;
2511
2512         for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2513                 if (mboxes & BIT_0)
2514                         ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2515
2516                 mboxes >>= 1;
2517                 wptr++;
2518         }
2519 }
2520
2521 static void
2522 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2523         struct abort_entry_24xx *pkt)
2524 {
2525         const char func[] = "ABT_IOCB";
2526         srb_t *sp;
2527         struct srb_iocb *abt;
2528
2529         sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2530         if (!sp)
2531                 return;
2532
2533         abt = &sp->u.iocb_cmd;
2534         abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2535         sp->done(vha, sp, 0);
2536 }
2537
2538 /**
2539  * qla24xx_process_response_queue() - Process response queue entries.
2540  * @ha: SCSI driver HA context
2541  */
2542 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2543         struct rsp_que *rsp)
2544 {
2545         struct sts_entry_24xx *pkt;
2546         struct qla_hw_data *ha = vha->hw;
2547
2548         if (!vha->flags.online)
2549                 return;
2550
2551         if (rsp->msix->cpuid != smp_processor_id()) {
2552                 /* if kernel does not notify qla of IRQ's CPU change,
2553                  * then set it here.
2554                  */
2555                 rsp->msix->cpuid = smp_processor_id();
2556                 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid;
2557         }
2558
2559         while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2560                 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2561
2562                 rsp->ring_index++;
2563                 if (rsp->ring_index == rsp->length) {
2564                         rsp->ring_index = 0;
2565                         rsp->ring_ptr = rsp->ring;
2566                 } else {
2567                         rsp->ring_ptr++;
2568                 }
2569
2570                 if (pkt->entry_status != 0) {
2571                         qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2572
2573                         if (qlt_24xx_process_response_error(vha, pkt))
2574                                 goto process_err;
2575
2576                         ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2577                         wmb();
2578                         continue;
2579                 }
2580 process_err:
2581
2582                 switch (pkt->entry_type) {
2583                 case STATUS_TYPE:
2584                         qla2x00_status_entry(vha, rsp, pkt);
2585                         break;
2586                 case STATUS_CONT_TYPE:
2587                         qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2588                         break;
2589                 case VP_RPT_ID_IOCB_TYPE:
2590                         qla24xx_report_id_acquisition(vha,
2591                             (struct vp_rpt_id_entry_24xx *)pkt);
2592                         break;
2593                 case LOGINOUT_PORT_IOCB_TYPE:
2594                         qla24xx_logio_entry(vha, rsp->req,
2595                             (struct logio_entry_24xx *)pkt);
2596                         break;
2597                 case CT_IOCB_TYPE:
2598                         qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2599                         break;
2600                 case ELS_IOCB_TYPE:
2601                         qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2602                         break;
2603                 case ABTS_RECV_24XX:
2604                         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2605                                 /* ensure that the ATIO queue is empty */
2606                                 qlt_handle_abts_recv(vha, (response_t *)pkt);
2607                                 break;
2608                         } else {
2609                                 /* drop through */
2610                                 qlt_24xx_process_atio_queue(vha, 1);
2611                         }
2612                 case ABTS_RESP_24XX:
2613                 case CTIO_TYPE7:
2614                 case NOTIFY_ACK_TYPE:
2615                 case CTIO_CRC2:
2616                         qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2617                         break;
2618                 case MARKER_TYPE:
2619                         /* Do nothing in this case, this check is to prevent it
2620                          * from falling into default case
2621                          */
2622                         break;
2623                 case ABORT_IOCB_TYPE:
2624                         qla24xx_abort_iocb_entry(vha, rsp->req,
2625                             (struct abort_entry_24xx *)pkt);
2626                         break;
2627                 default:
2628                         /* Type Not Supported. */
2629                         ql_dbg(ql_dbg_async, vha, 0x5042,
2630                             "Received unknown response pkt type %x "
2631                             "entry status=%x.\n",
2632                             pkt->entry_type, pkt->entry_status);
2633                         break;
2634                 }
2635                 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2636                 wmb();
2637         }
2638
2639         /* Adjust ring index */
2640         if (IS_P3P_TYPE(ha)) {
2641                 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2642                 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2643         } else
2644                 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2645 }
2646
2647 static void
2648 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2649 {
2650         int rval;
2651         uint32_t cnt;
2652         struct qla_hw_data *ha = vha->hw;
2653         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2654
2655         if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2656             !IS_QLA27XX(ha))
2657                 return;
2658
2659         rval = QLA_SUCCESS;
2660         WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2661         RD_REG_DWORD(&reg->iobase_addr);
2662         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2663         for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2664             rval == QLA_SUCCESS; cnt--) {
2665                 if (cnt) {
2666                         WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2667                         udelay(10);
2668                 } else
2669                         rval = QLA_FUNCTION_TIMEOUT;
2670         }
2671         if (rval == QLA_SUCCESS)
2672                 goto next_test;
2673
2674         rval = QLA_SUCCESS;
2675         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2676         for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2677             rval == QLA_SUCCESS; cnt--) {
2678                 if (cnt) {
2679                         WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2680                         udelay(10);
2681                 } else
2682                         rval = QLA_FUNCTION_TIMEOUT;
2683         }
2684         if (rval != QLA_SUCCESS)
2685                 goto done;
2686
2687 next_test:
2688         if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2689                 ql_log(ql_log_info, vha, 0x504c,
2690                     "Additional code -- 0x55AA.\n");
2691
2692 done:
2693         WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2694         RD_REG_DWORD(&reg->iobase_window);
2695 }
2696
2697 /**
2698  * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2699  * @irq:
2700  * @dev_id: SCSI driver HA context
2701  *
2702  * Called by system whenever the host adapter generates an interrupt.
2703  *
2704  * Returns handled flag.
2705  */
2706 irqreturn_t
2707 qla24xx_intr_handler(int irq, void *dev_id)
2708 {
2709         scsi_qla_host_t *vha;
2710         struct qla_hw_data *ha;
2711         struct device_reg_24xx __iomem *reg;
2712         int             status;
2713         unsigned long   iter;
2714         uint32_t        stat;
2715         uint32_t        hccr;
2716         uint16_t        mb[8];
2717         struct rsp_que *rsp;
2718         unsigned long   flags;
2719
2720         rsp = (struct rsp_que *) dev_id;
2721         if (!rsp) {
2722                 ql_log(ql_log_info, NULL, 0x5059,
2723                     "%s: NULL response queue pointer.\n", __func__);
2724                 return IRQ_NONE;
2725         }
2726
2727         ha = rsp->hw;
2728         reg = &ha->iobase->isp24;
2729         status = 0;
2730
2731         if (unlikely(pci_channel_offline(ha->pdev)))
2732                 return IRQ_HANDLED;
2733
2734         spin_lock_irqsave(&ha->hardware_lock, flags);
2735         vha = pci_get_drvdata(ha->pdev);
2736         for (iter = 50; iter--; ) {
2737                 stat = RD_REG_DWORD(&reg->host_status);
2738                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2739                         break;
2740                 if (stat & HSRX_RISC_PAUSED) {
2741                         if (unlikely(pci_channel_offline(ha->pdev)))
2742                                 break;
2743
2744                         hccr = RD_REG_DWORD(&reg->hccr);
2745
2746                         ql_log(ql_log_warn, vha, 0x504b,
2747                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2748                             hccr);
2749
2750                         qla2xxx_check_risc_status(vha);
2751
2752                         ha->isp_ops->fw_dump(vha, 1);
2753                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2754                         break;
2755                 } else if ((stat & HSRX_RISC_INT) == 0)
2756                         break;
2757
2758                 switch (stat & 0xff) {
2759                 case INTR_ROM_MB_SUCCESS:
2760                 case INTR_ROM_MB_FAILED:
2761                 case INTR_MB_SUCCESS:
2762                 case INTR_MB_FAILED:
2763                         qla24xx_mbx_completion(vha, MSW(stat));
2764                         status |= MBX_INTERRUPT;
2765
2766                         break;
2767                 case INTR_ASYNC_EVENT:
2768                         mb[0] = MSW(stat);
2769                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2770                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2771                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2772                         qla2x00_async_event(vha, rsp, mb);
2773                         break;
2774                 case INTR_RSP_QUE_UPDATE:
2775                 case INTR_RSP_QUE_UPDATE_83XX:
2776                         qla24xx_process_response_queue(vha, rsp);
2777                         break;
2778                 case INTR_ATIO_QUE_UPDATE:{
2779                         unsigned long flags2;
2780                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2781                         qlt_24xx_process_atio_queue(vha, 1);
2782                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2783                         break;
2784                 }
2785                 case INTR_ATIO_RSP_QUE_UPDATE: {
2786                         unsigned long flags2;
2787                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2788                         qlt_24xx_process_atio_queue(vha, 1);
2789                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2790
2791                         qla24xx_process_response_queue(vha, rsp);
2792                         break;
2793                 }
2794                 default:
2795                         ql_dbg(ql_dbg_async, vha, 0x504f,
2796                             "Unrecognized interrupt type (%d).\n", stat * 0xff);
2797                         break;
2798                 }
2799                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2800                 RD_REG_DWORD_RELAXED(&reg->hccr);
2801                 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2802                         ndelay(3500);
2803         }
2804         qla2x00_handle_mbx_completion(ha, status);
2805         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2806
2807         return IRQ_HANDLED;
2808 }
2809
2810 static irqreturn_t
2811 qla24xx_msix_rsp_q(int irq, void *dev_id)
2812 {
2813         struct qla_hw_data *ha;
2814         struct rsp_que *rsp;
2815         struct device_reg_24xx __iomem *reg;
2816         struct scsi_qla_host *vha;
2817         unsigned long flags;
2818         uint32_t stat = 0;
2819
2820         rsp = (struct rsp_que *) dev_id;
2821         if (!rsp) {
2822                 ql_log(ql_log_info, NULL, 0x505a,
2823                     "%s: NULL response queue pointer.\n", __func__);
2824                 return IRQ_NONE;
2825         }
2826         ha = rsp->hw;
2827         reg = &ha->iobase->isp24;
2828
2829         spin_lock_irqsave(&ha->hardware_lock, flags);
2830
2831         vha = pci_get_drvdata(ha->pdev);
2832         /*
2833          * Use host_status register to check to PCI disconnection before we
2834          * we process the response queue.
2835          */
2836         stat = RD_REG_DWORD(&reg->host_status);
2837         if (qla2x00_check_reg32_for_disconnect(vha, stat))
2838                 goto out;
2839         qla24xx_process_response_queue(vha, rsp);
2840         if (!ha->flags.disable_msix_handshake) {
2841                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2842                 RD_REG_DWORD_RELAXED(&reg->hccr);
2843         }
2844 out:
2845         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2846
2847         return IRQ_HANDLED;
2848 }
2849
2850 static irqreturn_t
2851 qla25xx_msix_rsp_q(int irq, void *dev_id)
2852 {
2853         struct qla_hw_data *ha;
2854         scsi_qla_host_t *vha;
2855         struct rsp_que *rsp;
2856         struct device_reg_24xx __iomem *reg;
2857         unsigned long flags;
2858         uint32_t hccr = 0;
2859
2860         rsp = (struct rsp_que *) dev_id;
2861         if (!rsp) {
2862                 ql_log(ql_log_info, NULL, 0x505b,
2863                     "%s: NULL response queue pointer.\n", __func__);
2864                 return IRQ_NONE;
2865         }
2866         ha = rsp->hw;
2867         vha = pci_get_drvdata(ha->pdev);
2868
2869         /* Clear the interrupt, if enabled, for this response queue */
2870         if (!ha->flags.disable_msix_handshake) {
2871                 reg = &ha->iobase->isp24;
2872                 spin_lock_irqsave(&ha->hardware_lock, flags);
2873                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2874                 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2875                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2876         }
2877         if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2878                 goto out;
2879         queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2880
2881 out:
2882         return IRQ_HANDLED;
2883 }
2884
2885 static irqreturn_t
2886 qla24xx_msix_default(int irq, void *dev_id)
2887 {
2888         scsi_qla_host_t *vha;
2889         struct qla_hw_data *ha;
2890         struct rsp_que *rsp;
2891         struct device_reg_24xx __iomem *reg;
2892         int             status;
2893         uint32_t        stat;
2894         uint32_t        hccr;
2895         uint16_t        mb[8];
2896         unsigned long flags;
2897
2898         rsp = (struct rsp_que *) dev_id;
2899         if (!rsp) {
2900                 ql_log(ql_log_info, NULL, 0x505c,
2901                     "%s: NULL response queue pointer.\n", __func__);
2902                 return IRQ_NONE;
2903         }
2904         ha = rsp->hw;
2905         reg = &ha->iobase->isp24;
2906         status = 0;
2907
2908         spin_lock_irqsave(&ha->hardware_lock, flags);
2909         vha = pci_get_drvdata(ha->pdev);
2910         do {
2911                 stat = RD_REG_DWORD(&reg->host_status);
2912                 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2913                         break;
2914                 if (stat & HSRX_RISC_PAUSED) {
2915                         if (unlikely(pci_channel_offline(ha->pdev)))
2916                                 break;
2917
2918                         hccr = RD_REG_DWORD(&reg->hccr);
2919
2920                         ql_log(ql_log_info, vha, 0x5050,
2921                             "RISC paused -- HCCR=%x, Dumping firmware.\n",
2922                             hccr);
2923
2924                         qla2xxx_check_risc_status(vha);
2925
2926                         ha->isp_ops->fw_dump(vha, 1);
2927                         set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2928                         break;
2929                 } else if ((stat & HSRX_RISC_INT) == 0)
2930                         break;
2931
2932                 switch (stat & 0xff) {
2933                 case INTR_ROM_MB_SUCCESS:
2934                 case INTR_ROM_MB_FAILED:
2935                 case INTR_MB_SUCCESS:
2936                 case INTR_MB_FAILED:
2937                         qla24xx_mbx_completion(vha, MSW(stat));
2938                         status |= MBX_INTERRUPT;
2939
2940                         break;
2941                 case INTR_ASYNC_EVENT:
2942                         mb[0] = MSW(stat);
2943                         mb[1] = RD_REG_WORD(&reg->mailbox1);
2944                         mb[2] = RD_REG_WORD(&reg->mailbox2);
2945                         mb[3] = RD_REG_WORD(&reg->mailbox3);
2946                         qla2x00_async_event(vha, rsp, mb);
2947                         break;
2948                 case INTR_RSP_QUE_UPDATE:
2949                 case INTR_RSP_QUE_UPDATE_83XX:
2950                         qla24xx_process_response_queue(vha, rsp);
2951                         break;
2952                 case INTR_ATIO_QUE_UPDATE:{
2953                         unsigned long flags2;
2954                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2955                         qlt_24xx_process_atio_queue(vha, 1);
2956                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2957                         break;
2958                 }
2959                 case INTR_ATIO_RSP_QUE_UPDATE: {
2960                         unsigned long flags2;
2961                         spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2962                         qlt_24xx_process_atio_queue(vha, 1);
2963                         spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2964
2965                         qla24xx_process_response_queue(vha, rsp);
2966                         break;
2967                 }
2968                 default:
2969                         ql_dbg(ql_dbg_async, vha, 0x5051,
2970                             "Unrecognized interrupt type (%d).\n", stat & 0xff);
2971                         break;
2972                 }
2973                 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2974         } while (0);
2975         qla2x00_handle_mbx_completion(ha, status);
2976         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2977
2978         return IRQ_HANDLED;
2979 }
2980
2981 /* Interrupt handling helpers. */
2982
2983 struct qla_init_msix_entry {
2984         const char *name;
2985         irq_handler_t handler;
2986 };
2987
2988 static struct qla_init_msix_entry msix_entries[3] = {
2989         { "qla2xxx (default)", qla24xx_msix_default },
2990         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2991         { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2992 };
2993
2994 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2995         { "qla2xxx (default)", qla82xx_msix_default },
2996         { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2997 };
2998
2999 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
3000         { "qla2xxx (default)", qla24xx_msix_default },
3001         { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3002         { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3003 };
3004
3005 static void
3006 qla24xx_disable_msix(struct qla_hw_data *ha)
3007 {
3008         int i;
3009         struct qla_msix_entry *qentry;
3010         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3011
3012         for (i = 0; i < ha->msix_count; i++) {
3013                 qentry = &ha->msix_entries[i];
3014                 if (qentry->have_irq) {
3015                         /* un-register irq cpu affinity notification */
3016                         irq_set_affinity_notifier(qentry->vector, NULL);
3017                         free_irq(qentry->vector, qentry->rsp);
3018                 }
3019         }
3020         pci_disable_msix(ha->pdev);
3021         kfree(ha->msix_entries);
3022         ha->msix_entries = NULL;
3023         ha->flags.msix_enabled = 0;
3024         ql_dbg(ql_dbg_init, vha, 0x0042,
3025             "Disabled the MSI.\n");
3026 }
3027
3028 static int
3029 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3030 {
3031 #define MIN_MSIX_COUNT  2
3032 #define ATIO_VECTOR     2
3033         int i, ret;
3034         struct msix_entry *entries;
3035         struct qla_msix_entry *qentry;
3036         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3037
3038         entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3039                         GFP_KERNEL);
3040         if (!entries) {
3041                 ql_log(ql_log_warn, vha, 0x00bc,
3042                     "Failed to allocate memory for msix_entry.\n");
3043                 return -ENOMEM;
3044         }
3045
3046         for (i = 0; i < ha->msix_count; i++)
3047                 entries[i].entry = i;
3048
3049         ret = pci_enable_msix_range(ha->pdev,
3050                                     entries, MIN_MSIX_COUNT, ha->msix_count);
3051         if (ret < 0) {
3052                 ql_log(ql_log_fatal, vha, 0x00c7,
3053                     "MSI-X: Failed to enable support, "
3054                     "giving   up -- %d/%d.\n",
3055                     ha->msix_count, ret);
3056                 goto msix_out;
3057         } else if (ret < ha->msix_count) {
3058                 ql_log(ql_log_warn, vha, 0x00c6,
3059                     "MSI-X: Failed to enable support "
3060                     "-- %d/%d\n Retry with %d vectors.\n",
3061                     ha->msix_count, ret, ret);
3062                 ha->msix_count = ret;
3063                 ha->max_rsp_queues = ha->msix_count - 1;
3064         }
3065         ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3066                                 ha->msix_count, GFP_KERNEL);
3067         if (!ha->msix_entries) {
3068                 ql_log(ql_log_fatal, vha, 0x00c8,
3069                     "Failed to allocate memory for ha->msix_entries.\n");
3070                 ret = -ENOMEM;
3071                 goto msix_out;
3072         }
3073         ha->flags.msix_enabled = 1;
3074
3075         for (i = 0; i < ha->msix_count; i++) {
3076                 qentry = &ha->msix_entries[i];
3077                 qentry->vector = entries[i].vector;
3078                 qentry->entry = entries[i].entry;
3079                 qentry->have_irq = 0;
3080                 qentry->rsp = NULL;
3081                 qentry->irq_notify.notify  = qla_irq_affinity_notify;
3082                 qentry->irq_notify.release = qla_irq_affinity_release;
3083                 qentry->cpuid = -1;
3084         }
3085
3086         /* Enable MSI-X vectors for the base queue */
3087         for (i = 0; i < 2; i++) {
3088                 qentry = &ha->msix_entries[i];
3089                 if (IS_P3P_TYPE(ha))
3090                         ret = request_irq(qentry->vector,
3091                                 qla82xx_msix_entries[i].handler,
3092                                 0, qla82xx_msix_entries[i].name, rsp);
3093                 else
3094                         ret = request_irq(qentry->vector,
3095                                 msix_entries[i].handler,
3096                                 0, msix_entries[i].name, rsp);
3097                 if (ret)
3098                         goto msix_register_fail;
3099                 qentry->have_irq = 1;
3100                 qentry->rsp = rsp;
3101                 rsp->msix = qentry;
3102
3103                 /* Register for CPU affinity notification. */
3104                 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
3105
3106                 /* Schedule work (ie. trigger a notification) to read cpu
3107                  * mask for this specific irq.
3108                  * kref_get is required because
3109                 * irq_affinity_notify() will do
3110                 * kref_put().
3111                 */
3112                 kref_get(&qentry->irq_notify.kref);
3113                 schedule_work(&qentry->irq_notify.work);
3114         }
3115
3116         /*
3117          * If target mode is enable, also request the vector for the ATIO
3118          * queue.
3119          */
3120         if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3121                 qentry = &ha->msix_entries[ATIO_VECTOR];
3122                 ret = request_irq(qentry->vector,
3123                         qla83xx_msix_entries[ATIO_VECTOR].handler,
3124                         0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3125                 qentry->have_irq = 1;
3126                 qentry->rsp = rsp;
3127                 rsp->msix = qentry;
3128         }
3129
3130 msix_register_fail:
3131         if (ret) {
3132                 ql_log(ql_log_fatal, vha, 0x00cb,
3133                     "MSI-X: unable to register handler -- %x/%d.\n",
3134                     qentry->vector, ret);
3135                 qla24xx_disable_msix(ha);
3136                 ha->mqenable = 0;
3137                 goto msix_out;
3138         }
3139
3140         /* Enable MSI-X vector for response queue update for queue 0 */
3141         if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3142                 if (ha->msixbase && ha->mqiobase &&
3143                     (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3144                         ha->mqenable = 1;
3145         } else
3146                 if (ha->mqiobase
3147                     && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3148                         ha->mqenable = 1;
3149         ql_dbg(ql_dbg_multiq, vha, 0xc005,
3150             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3151             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3152         ql_dbg(ql_dbg_init, vha, 0x0055,
3153             "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3154             ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3155
3156 msix_out:
3157         kfree(entries);
3158         return ret;
3159 }
3160
3161 int
3162 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3163 {
3164         int ret = QLA_FUNCTION_FAILED;
3165         device_reg_t *reg = ha->iobase;
3166         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3167
3168         /* If possible, enable MSI-X. */
3169         if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3170             !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3171             !IS_QLA27XX(ha))
3172                 goto skip_msi;
3173
3174         if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3175                 (ha->pdev->subsystem_device == 0x7040 ||
3176                 ha->pdev->subsystem_device == 0x7041 ||
3177                 ha->pdev->subsystem_device == 0x1705)) {
3178                 ql_log(ql_log_warn, vha, 0x0034,
3179                     "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3180                         ha->pdev->subsystem_vendor,
3181                         ha->pdev->subsystem_device);
3182                 goto skip_msi;
3183         }
3184
3185         if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3186                 ql_log(ql_log_warn, vha, 0x0035,
3187                     "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3188                     ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3189                 goto skip_msix;
3190         }
3191
3192         ret = qla24xx_enable_msix(ha, rsp);
3193         if (!ret) {
3194                 ql_dbg(ql_dbg_init, vha, 0x0036,
3195                     "MSI-X: Enabled (0x%X, 0x%X).\n",
3196                     ha->chip_revision, ha->fw_attributes);
3197                 goto clear_risc_ints;
3198         }
3199
3200 skip_msix:
3201
3202         ql_log(ql_log_info, vha, 0x0037,
3203             "Falling back-to MSI mode -%d.\n", ret);
3204
3205         if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3206             !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3207             !IS_QLA27XX(ha))
3208                 goto skip_msi;
3209
3210         ret = pci_enable_msi(ha->pdev);
3211         if (!ret) {
3212                 ql_dbg(ql_dbg_init, vha, 0x0038,
3213                     "MSI: Enabled.\n");
3214                 ha->flags.msi_enabled = 1;
3215         } else
3216                 ql_log(ql_log_warn, vha, 0x0039,
3217                     "Falling back-to INTa mode -- %d.\n", ret);
3218 skip_msi:
3219
3220         /* Skip INTx on ISP82xx. */
3221         if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3222                 return QLA_FUNCTION_FAILED;
3223
3224         ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3225             ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3226             QLA2XXX_DRIVER_NAME, rsp);
3227         if (ret) {
3228                 ql_log(ql_log_warn, vha, 0x003a,
3229                     "Failed to reserve interrupt %d already in use.\n",
3230                     ha->pdev->irq);
3231                 goto fail;
3232         } else if (!ha->flags.msi_enabled) {
3233                 ql_dbg(ql_dbg_init, vha, 0x0125,
3234                     "INTa mode: Enabled.\n");
3235                 ha->flags.mr_intr_valid = 1;
3236         }
3237
3238 clear_risc_ints:
3239         if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3240                 goto fail;
3241
3242         spin_lock_irq(&ha->hardware_lock);
3243         WRT_REG_WORD(&reg->isp.semaphore, 0);
3244         spin_unlock_irq(&ha->hardware_lock);
3245
3246 fail:
3247         return ret;
3248 }
3249
3250 void
3251 qla2x00_free_irqs(scsi_qla_host_t *vha)
3252 {
3253         struct qla_hw_data *ha = vha->hw;
3254         struct rsp_que *rsp;
3255
3256         /*
3257          * We need to check that ha->rsp_q_map is valid in case we are called
3258          * from a probe failure context.
3259          */
3260         if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3261                 return;
3262         rsp = ha->rsp_q_map[0];
3263
3264         if (ha->flags.msix_enabled)
3265                 qla24xx_disable_msix(ha);
3266         else if (ha->flags.msi_enabled) {
3267                 free_irq(ha->pdev->irq, rsp);
3268                 pci_disable_msi(ha->pdev);
3269         } else
3270                 free_irq(ha->pdev->irq, rsp);
3271 }
3272
3273
3274 int qla25xx_request_irq(struct rsp_que *rsp)
3275 {
3276         struct qla_hw_data *ha = rsp->hw;
3277         struct qla_init_msix_entry *intr = &msix_entries[2];
3278         struct qla_msix_entry *msix = rsp->msix;
3279         scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3280         int ret;
3281
3282         ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3283         if (ret) {
3284                 ql_log(ql_log_fatal, vha, 0x00e6,
3285                     "MSI-X: Unable to register handler -- %x/%d.\n",
3286                     msix->vector, ret);
3287                 return ret;
3288         }
3289         msix->have_irq = 1;
3290         msix->rsp = rsp;
3291         return ret;
3292 }
3293
3294
3295 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */
3296 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
3297         const cpumask_t *mask)
3298 {
3299         struct qla_msix_entry *e =
3300                 container_of(notify, struct qla_msix_entry, irq_notify);
3301         struct qla_hw_data *ha;
3302         struct scsi_qla_host *base_vha;
3303
3304         /* user is recommended to set mask to just 1 cpu */
3305         e->cpuid = cpumask_first(mask);
3306
3307         ha = e->rsp->hw;
3308         base_vha = pci_get_drvdata(ha->pdev);
3309
3310         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3311             "%s: host %ld : vector %d cpu %d \n", __func__,
3312             base_vha->host_no, e->vector, e->cpuid);
3313
3314         if (e->have_irq) {
3315                 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) &&
3316                     (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) {
3317                         ha->tgt.rspq_vector_cpuid = e->cpuid;
3318                         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3319                             "%s: host%ld: rspq vector %d cpu %d  runtime change\n",
3320                             __func__, base_vha->host_no, e->vector, e->cpuid);
3321                 }
3322         }
3323 }
3324
3325 static void qla_irq_affinity_release(struct kref *ref)
3326 {
3327         struct irq_affinity_notify *notify =
3328                 container_of(ref, struct irq_affinity_notify, kref);
3329         struct qla_msix_entry *e =
3330                 container_of(notify, struct qla_msix_entry, irq_notify);
3331         struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
3332
3333         ql_dbg(ql_dbg_init, base_vha, 0xffff,
3334             "%s: host%ld: vector %d cpu %d \n", __func__,
3335             base_vha->host_no, e->vector, e->cpuid);
3336 }