2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
10 static void qla2x00_async_event(scsi_qla_host_t *, uint16_t *);
11 static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
12 static void qla2x00_status_entry(scsi_qla_host_t *, void *);
13 static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
14 static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
15 static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
17 static void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *);
20 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
22 * @dev_id: SCSI driver HA context
25 * Called by system whenever the host adapter generates an interrupt.
27 * Returns handled flag.
30 qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
33 struct device_reg_2xxx __iomem *reg;
39 ha = (scsi_qla_host_t *) dev_id;
42 "%s(): NULL host pointer\n", __func__);
46 reg = &ha->iobase->isp;
49 spin_lock_irqsave(&ha->hardware_lock, flags);
50 for (iter = 50; iter--; ) {
51 if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
54 if (RD_REG_WORD(®->semaphore) & BIT_0) {
55 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
56 RD_REG_WORD(®->hccr);
58 /* Get mailbox data. */
59 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
60 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
61 qla2x00_mbx_completion(ha, mb[0]);
62 status |= MBX_INTERRUPT;
63 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
64 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
65 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
66 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
67 qla2x00_async_event(ha, mb);
70 DEBUG2(printk("scsi(%ld): Unrecognized "
71 "interrupt type (%d).\n",
74 /* Release mailbox registers. */
75 WRT_REG_WORD(®->semaphore, 0);
76 RD_REG_WORD(®->semaphore);
78 qla2x00_process_response_queue(ha);
80 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
81 RD_REG_WORD(®->hccr);
84 spin_unlock_irqrestore(&ha->hardware_lock, flags);
86 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
87 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
88 spin_lock_irqsave(&ha->mbx_reg_lock, flags);
90 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
91 up(&ha->mbx_intr_sem);
93 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
100 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
102 * @dev_id: SCSI driver HA context
105 * Called by system whenever the host adapter generates an interrupt.
107 * Returns handled flag.
110 qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
113 struct device_reg_2xxx __iomem *reg;
121 ha = (scsi_qla_host_t *) dev_id;
124 "%s(): NULL host pointer\n", __func__);
128 reg = &ha->iobase->isp;
131 spin_lock_irqsave(&ha->hardware_lock, flags);
132 for (iter = 50; iter--; ) {
133 stat = RD_REG_DWORD(®->u.isp2300.host_status);
134 if (stat & HSR_RISC_PAUSED) {
135 hccr = RD_REG_WORD(®->hccr);
136 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
137 qla_printk(KERN_INFO, ha,
138 "Parity error -- HCCR=%x.\n", hccr);
140 qla_printk(KERN_INFO, ha,
141 "RISC paused -- HCCR=%x.\n", hccr);
144 * Issue a "HARD" reset in order for the RISC
145 * interrupt bit to be cleared. Schedule a big
146 * hammmer to get out of the RISC PAUSED state.
148 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
149 RD_REG_WORD(®->hccr);
150 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
152 } else if ((stat & HSR_RISC_INT) == 0)
155 switch (stat & 0xff) {
160 qla2x00_mbx_completion(ha, MSW(stat));
161 status |= MBX_INTERRUPT;
163 /* Release mailbox registers. */
164 WRT_REG_WORD(®->semaphore, 0);
168 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
169 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
170 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
171 qla2x00_async_event(ha, mb);
174 qla2x00_process_response_queue(ha);
177 mb[0] = MBA_CMPLT_1_16BIT;
179 qla2x00_async_event(ha, mb);
182 mb[0] = MBA_SCSI_COMPLETION;
184 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
185 qla2x00_async_event(ha, mb);
188 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
190 ha->host_no, stat & 0xff));
193 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
194 RD_REG_WORD_RELAXED(®->hccr);
196 spin_unlock_irqrestore(&ha->hardware_lock, flags);
198 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
199 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
200 spin_lock_irqsave(&ha->mbx_reg_lock, flags);
202 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
203 up(&ha->mbx_intr_sem);
205 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
208 return (IRQ_HANDLED);
212 * qla2x00_mbx_completion() - Process mailbox command completions.
213 * @ha: SCSI driver HA context
214 * @mb0: Mailbox0 register
217 qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
220 uint16_t __iomem *wptr;
221 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
223 /* Load return mailbox registers. */
224 ha->flags.mbox_int = 1;
225 ha->mailbox_out[0] = mb0;
226 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
228 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
229 if (IS_QLA2200(ha) && cnt == 8)
230 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
231 if (cnt == 4 || cnt == 5)
232 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
234 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
240 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
241 __func__, ha->host_no, ha->mcp->mb[0]));
243 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
244 __func__, ha->host_no));
249 * qla2x00_async_event() - Process aynchronous events.
250 * @ha: SCSI driver HA context
251 * @mb: Mailbox registers (0 - 3)
254 qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
257 static char *link_speeds[5] = { "1", "2", "?", "4", "10" };
262 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
263 uint32_t rscn_entry, host_pid;
264 uint8_t rscn_queue_index;
266 /* Setup to process RIO completion. */
269 case MBA_SCSI_COMPLETION:
270 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
273 case MBA_CMPLT_1_16BIT:
276 mb[0] = MBA_SCSI_COMPLETION;
278 case MBA_CMPLT_2_16BIT:
282 mb[0] = MBA_SCSI_COMPLETION;
284 case MBA_CMPLT_3_16BIT:
289 mb[0] = MBA_SCSI_COMPLETION;
291 case MBA_CMPLT_4_16BIT:
295 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
297 mb[0] = MBA_SCSI_COMPLETION;
299 case MBA_CMPLT_5_16BIT:
303 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
304 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
306 mb[0] = MBA_SCSI_COMPLETION;
308 case MBA_CMPLT_2_32BIT:
309 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
310 handles[1] = le32_to_cpu(
311 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
312 RD_MAILBOX_REG(ha, reg, 6));
314 mb[0] = MBA_SCSI_COMPLETION;
321 case MBA_SCSI_COMPLETION: /* Fast Post */
322 if (!ha->flags.online)
325 for (cnt = 0; cnt < handle_cnt; cnt++)
326 qla2x00_process_completed_request(ha, handles[cnt]);
329 case MBA_RESET: /* Reset */
330 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
332 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
335 case MBA_SYSTEM_ERR: /* System Error */
336 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
337 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
338 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
340 qla_printk(KERN_INFO, ha,
341 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
342 mb[1], mb[2], mb[3]);
344 ha->isp_ops.fw_dump(ha, 1);
346 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
347 if (mb[1] == 0 && mb[2] == 0) {
348 qla_printk(KERN_ERR, ha,
349 "Unrecoverable Hardware Error: adapter "
350 "marked OFFLINE!\n");
351 ha->flags.online = 0;
353 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
354 } else if (mb[1] == 0) {
355 qla_printk(KERN_INFO, ha,
356 "Unrecoverable Hardware Error: adapter marked "
358 ha->flags.online = 0;
360 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
363 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
364 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
366 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
368 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
371 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
372 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
374 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
376 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
379 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
380 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
384 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
385 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
387 qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
389 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
390 atomic_set(&ha->loop_state, LOOP_DOWN);
391 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
392 qla2x00_mark_all_devices_lost(ha, 1);
395 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
397 ha->flags.management_server_logged_in = 0;
399 /* Update AEN queue. */
400 qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
404 case MBA_LOOP_UP: /* Loop Up Event */
405 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
406 link_speed = link_speeds[0];
407 ha->link_data_rate = LDR_1GB;
409 link_speed = link_speeds[LS_UNKNOWN];
411 link_speed = link_speeds[mb[1]];
412 ha->link_data_rate = mb[1];
415 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
416 ha->host_no, link_speed));
417 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
420 ha->flags.management_server_logged_in = 0;
422 /* Update AEN queue. */
423 qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
426 case MBA_LOOP_DOWN: /* Loop Down Event */
427 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
428 ha->host_no, mb[1]));
429 qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]);
431 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
432 atomic_set(&ha->loop_state, LOOP_DOWN);
433 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
434 ha->device_flags |= DFLG_NO_CABLE;
435 qla2x00_mark_all_devices_lost(ha, 1);
438 ha->flags.management_server_logged_in = 0;
439 ha->link_data_rate = LDR_UNKNOWN;
441 set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
443 /* Update AEN queue. */
444 qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
447 case MBA_LIP_RESET: /* LIP reset occurred */
448 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
449 ha->host_no, mb[1]));
450 qla_printk(KERN_INFO, ha,
451 "LIP reset occured (%x).\n", mb[1]);
453 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
454 atomic_set(&ha->loop_state, LOOP_DOWN);
455 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
456 qla2x00_mark_all_devices_lost(ha, 1);
459 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
461 ha->operating_mode = LOOP;
462 ha->flags.management_server_logged_in = 0;
464 /* Update AEN queue. */
465 qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
469 case MBA_POINT_TO_POINT: /* Point-to-Point */
473 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
477 * Until there's a transition from loop down to loop up, treat
478 * this as loop down only.
480 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
481 atomic_set(&ha->loop_state, LOOP_DOWN);
482 if (!atomic_read(&ha->loop_down_timer))
483 atomic_set(&ha->loop_down_timer,
485 qla2x00_mark_all_devices_lost(ha, 1);
488 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
489 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
491 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
494 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
498 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
501 qla_printk(KERN_INFO, ha,
502 "Configuration change detected: value=%x.\n", mb[1]);
504 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
505 atomic_set(&ha->loop_state, LOOP_DOWN);
506 if (!atomic_read(&ha->loop_down_timer))
507 atomic_set(&ha->loop_down_timer,
509 qla2x00_mark_all_devices_lost(ha, 1);
512 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
513 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
516 case MBA_PORT_UPDATE: /* Port database update */
518 * If a single remote port just logged into (or logged out of)
519 * us, create a new entry in our rscn fcports list and handle
520 * the event like an RSCN.
522 if (ql2xprocessrscn &&
523 !IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
524 !IS_QLA6322(ha) && !IS_QLA24XX(ha) && !IS_QLA54XX(ha) &&
525 ha->flags.init_done && mb[1] != 0xffff &&
526 ((ha->operating_mode == P2P && mb[1] != 0) ||
527 (ha->operating_mode != P2P && mb[1] !=
528 SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
530 fc_port_t *rscn_fcport;
532 /* Create new fcport for login. */
533 rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
535 DEBUG14(printk("scsi(%ld): Port Update -- "
536 "creating RSCN fcport %p for %x/%x/%x.\n",
537 ha->host_no, rscn_fcport, mb[1], mb[2],
540 rscn_fcport->loop_id = mb[1];
541 rscn_fcport->d_id.b24 = INVALID_PORT_ID;
542 atomic_set(&rscn_fcport->state,
544 list_add_tail(&rscn_fcport->list,
547 rval = qla2x00_handle_port_rscn(ha, 0,
549 if (rval == QLA_SUCCESS)
552 DEBUG14(printk("scsi(%ld): Port Update -- "
553 "-- unable to allocate RSCN fcport "
554 "login.\n", ha->host_no));
559 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
560 * event etc. earlier indicating loop is down) then process
561 * it. Otherwise ignore it and Wait for RSCN to come in.
563 atomic_set(&ha->loop_down_timer, 0);
564 if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
565 atomic_read(&ha->loop_state) != LOOP_DEAD) {
566 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
567 "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1],
572 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
574 DEBUG(printk(KERN_INFO
575 "scsi(%ld): Port database changed %04x %04x %04x.\n",
576 ha->host_no, mb[1], mb[2], mb[3]));
579 * Mark all devices as missing so we will login again.
581 atomic_set(&ha->loop_state, LOOP_UP);
583 qla2x00_mark_all_devices_lost(ha, 1);
585 ha->flags.rscn_queue_overflow = 1;
587 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
588 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
590 /* Update AEN queue. */
591 qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
594 case MBA_RSCN_UPDATE: /* State Change Registration */
595 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
597 DEBUG(printk(KERN_INFO
598 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
599 ha->host_no, mb[1], mb[2]));
601 rscn_entry = (mb[1] << 16) | mb[2];
602 host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
604 if (rscn_entry == host_pid) {
605 DEBUG(printk(KERN_INFO
606 "scsi(%ld): Ignoring RSCN update to local host "
608 ha->host_no, host_pid));
612 rscn_queue_index = ha->rscn_in_ptr + 1;
613 if (rscn_queue_index == MAX_RSCN_COUNT)
614 rscn_queue_index = 0;
615 if (rscn_queue_index != ha->rscn_out_ptr) {
616 ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
617 ha->rscn_in_ptr = rscn_queue_index;
619 ha->flags.rscn_queue_overflow = 1;
622 atomic_set(&ha->loop_state, LOOP_UPDATE);
623 atomic_set(&ha->loop_down_timer, 0);
624 ha->flags.management_server_logged_in = 0;
626 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
627 set_bit(RSCN_UPDATE, &ha->dpc_flags);
629 /* Update AEN queue. */
630 qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
633 /* case MBA_RIO_RESPONSE: */
634 case MBA_ZIO_RESPONSE:
635 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
637 DEBUG(printk(KERN_INFO
638 "scsi(%ld): [R|Z]IO update completion.\n",
641 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
642 qla24xx_process_response_queue(ha);
644 qla2x00_process_response_queue(ha);
647 case MBA_DISCARD_RND_FRAME:
648 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
649 "%04x.\n", ha->host_no, mb[1], mb[2], mb[3]));
655 * qla2x00_process_completed_request() - Process a Fast Post response.
656 * @ha: SCSI driver HA context
660 qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
664 /* Validate handle. */
665 if (index >= MAX_OUTSTANDING_COMMANDS) {
666 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
667 ha->host_no, index));
668 qla_printk(KERN_WARNING, ha,
669 "Invalid SCSI completion handle %d.\n", index);
671 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
675 sp = ha->outstanding_cmds[index];
677 /* Free outstanding command slot. */
678 ha->outstanding_cmds[index] = NULL;
680 CMD_COMPL_STATUS(sp->cmd) = 0L;
681 CMD_SCSI_STATUS(sp->cmd) = 0L;
683 /* Save ISP completion status */
684 sp->cmd->result = DID_OK << 16;
685 qla2x00_sp_compl(ha, sp);
687 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
689 qla_printk(KERN_WARNING, ha,
690 "Invalid ISP SCSI completion handle\n");
692 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
697 * qla2x00_process_response_queue() - Process response queue entries.
698 * @ha: SCSI driver HA context
701 qla2x00_process_response_queue(struct scsi_qla_host *ha)
703 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
708 if (!ha->flags.online)
711 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
712 pkt = (sts_entry_t *)ha->response_ring_ptr;
714 ha->rsp_ring_index++;
715 if (ha->rsp_ring_index == ha->response_q_length) {
716 ha->rsp_ring_index = 0;
717 ha->response_ring_ptr = ha->response_ring;
719 ha->response_ring_ptr++;
722 if (pkt->entry_status != 0) {
723 DEBUG3(printk(KERN_INFO
724 "scsi(%ld): Process error entry.\n", ha->host_no));
726 qla2x00_error_entry(ha, pkt);
727 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
732 switch (pkt->entry_type) {
734 qla2x00_status_entry(ha, pkt);
737 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
738 for (cnt = 0; cnt < handle_cnt; cnt++) {
739 qla2x00_process_completed_request(ha,
740 ((sts21_entry_t *)pkt)->handle[cnt]);
744 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
745 for (cnt = 0; cnt < handle_cnt; cnt++) {
746 qla2x00_process_completed_request(ha,
747 ((sts22_entry_t *)pkt)->handle[cnt]);
750 case STATUS_CONT_TYPE:
751 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
754 qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
757 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
758 !IS_QLA6312(ha) && !IS_QLA6322(ha)) {
759 if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
760 qla2x00_process_iodesc(ha,
761 (struct mbx_entry *)pkt);
763 /* MBX IOCB Type Not Supported. */
764 DEBUG4(printk(KERN_WARNING
765 "scsi(%ld): Received unknown MBX "
766 "IOCB response pkt type=%x "
767 "source=%x entry status=%x.\n",
768 ha->host_no, pkt->entry_type,
776 /* Type Not Supported. */
777 DEBUG4(printk(KERN_WARNING
778 "scsi(%ld): Received unknown response pkt type %x "
779 "entry status=%x.\n",
780 ha->host_no, pkt->entry_type, pkt->entry_status));
783 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
787 /* Adjust ring index */
788 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
792 * qla2x00_status_entry() - Process a Status IOCB entry.
793 * @ha: SCSI driver HA context
794 * @pkt: Entry pointer
797 qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt)
801 struct scsi_cmnd *cp;
803 struct sts_entry_24xx *sts24;
804 uint16_t comp_status;
805 uint16_t scsi_status;
806 uint8_t lscsi_status;
808 uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len;
809 uint8_t *rsp_info, *sense_data;
811 sts = (sts_entry_t *) pkt;
812 sts24 = (struct sts_entry_24xx *) pkt;
813 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
814 comp_status = le16_to_cpu(sts24->comp_status);
815 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
817 comp_status = le16_to_cpu(sts->comp_status);
818 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
821 /* Fast path completion. */
822 if (comp_status == CS_COMPLETE && scsi_status == 0) {
823 qla2x00_process_completed_request(ha, sts->handle);
828 /* Validate handle. */
829 if (sts->handle < MAX_OUTSTANDING_COMMANDS) {
830 sp = ha->outstanding_cmds[sts->handle];
831 ha->outstanding_cmds[sts->handle] = NULL;
836 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
838 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
840 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
841 qla2xxx_wake_dpc(ha);
846 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
847 "pkt->handle=%d sp=%p sp->state:%d\n",
848 ha->host_no, sts->handle, sp, sp->state));
849 qla_printk(KERN_WARNING, ha,
850 "Command is NULL: already returned to OS (sp=%p)\n", sp);
855 lscsi_status = scsi_status & STATUS_MASK;
856 CMD_ENTRY_STATUS(cp) = sts->entry_status;
857 CMD_COMPL_STATUS(cp) = comp_status;
858 CMD_SCSI_STATUS(cp) = scsi_status;
862 sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
863 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
864 sense_len = le32_to_cpu(sts24->sense_len);
865 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
866 resid_len = le32_to_cpu(sts24->rsp_residual_count);
867 fw_resid_len = le32_to_cpu(sts24->residual_len);
868 rsp_info = sts24->data;
869 sense_data = sts24->data;
870 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
872 sense_len = le16_to_cpu(sts->req_sense_length);
873 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
874 resid_len = le32_to_cpu(sts->residual_length);
875 rsp_info = sts->rsp_info;
876 sense_data = sts->req_sense_data;
879 /* Check for any FCP transport errors. */
880 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
881 /* Sense data lies beyond any FCP RESPONSE data. */
882 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
883 sense_data += rsp_info_len;
884 if (rsp_info_len > 3 && rsp_info[3]) {
885 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
886 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
887 "retrying command\n", ha->host_no,
888 cp->device->channel, cp->device->id,
889 cp->device->lun, rsp_info_len, rsp_info[0],
890 rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
891 rsp_info[5], rsp_info[6], rsp_info[7]));
893 cp->result = DID_BUS_BUSY << 16;
894 qla2x00_sp_compl(ha, sp);
900 * Based on Host and scsi status generate status code for Linux
902 switch (comp_status) {
904 if (scsi_status == 0) {
905 cp->result = DID_OK << 16;
908 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
911 CMD_RESID_LEN(cp) = resid;
914 ((unsigned)(cp->request_bufflen - resid) <
916 qla_printk(KERN_INFO, ha,
917 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
918 "detected (%x of %x bytes)...returning "
919 "error status.\n", ha->host_no,
920 cp->device->channel, cp->device->id,
921 cp->device->lun, resid,
922 cp->request_bufflen);
924 cp->result = DID_ERROR << 16;
928 cp->result = DID_OK << 16 | lscsi_status;
930 if (lscsi_status != SS_CHECK_CONDITION)
933 /* Copy Sense Data into sense buffer. */
934 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
936 if (!(scsi_status & SS_SENSE_LEN_VALID))
939 if (sense_len >= sizeof(cp->sense_buffer))
940 sense_len = sizeof(cp->sense_buffer);
942 CMD_ACTUAL_SNSLEN(cp) = sense_len;
943 sp->request_sense_length = sense_len;
944 sp->request_sense_ptr = cp->sense_buffer;
946 if (sp->request_sense_length > 32)
949 memcpy(cp->sense_buffer, sense_data, sense_len);
951 sp->request_sense_ptr += sense_len;
952 sp->request_sense_length -= sense_len;
953 if (sp->request_sense_length != 0)
956 DEBUG5(printk("%s(): Check condition Sense data, "
957 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__,
958 ha->host_no, cp->device->channel, cp->device->id,
959 cp->device->lun, cp, cp->serial_number));
961 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
962 CMD_ACTUAL_SNSLEN(cp)));
965 case CS_DATA_UNDERRUN:
967 /* Use F/W calculated residual length. */
968 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
969 resid = fw_resid_len;
971 if (scsi_status & SS_RESIDUAL_UNDER) {
973 CMD_RESID_LEN(cp) = resid;
975 DEBUG2(printk(KERN_INFO
976 "scsi(%ld:%d:%d) UNDERRUN status detected "
977 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
978 "os_underflow=0x%x\n", ha->host_no,
979 cp->device->id, cp->device->lun, comp_status,
980 scsi_status, resid_len, resid, cp->cmnd[0],
986 * Check to see if SCSI Status is non zero. If so report SCSI
989 if (lscsi_status != 0) {
990 cp->result = DID_OK << 16 | lscsi_status;
992 if (lscsi_status != SS_CHECK_CONDITION)
995 /* Copy Sense Data into sense buffer */
996 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
998 if (!(scsi_status & SS_SENSE_LEN_VALID))
1001 if (sense_len >= sizeof(cp->sense_buffer))
1002 sense_len = sizeof(cp->sense_buffer);
1004 CMD_ACTUAL_SNSLEN(cp) = sense_len;
1005 sp->request_sense_length = sense_len;
1006 sp->request_sense_ptr = cp->sense_buffer;
1008 if (sp->request_sense_length > 32)
1011 memcpy(cp->sense_buffer, sense_data, sense_len);
1013 sp->request_sense_ptr += sense_len;
1014 sp->request_sense_length -= sense_len;
1015 if (sp->request_sense_length != 0)
1016 ha->status_srb = sp;
1018 DEBUG5(printk("%s(): Check condition Sense data, "
1019 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
1020 __func__, ha->host_no, cp->device->channel,
1021 cp->device->id, cp->device->lun, cp,
1022 cp->serial_number));
1025 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
1026 CMD_ACTUAL_SNSLEN(cp)));
1029 * If RISC reports underrun and target does not report
1030 * it then we must have a lost frame, so tell upper
1031 * layer to retry it by reporting a bus busy.
1033 if (!(scsi_status & SS_RESIDUAL_UNDER)) {
1034 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1035 "frame(s) detected (%x of %x bytes)..."
1036 "retrying command.\n", ha->host_no,
1037 cp->device->channel, cp->device->id,
1038 cp->device->lun, resid,
1039 cp->request_bufflen));
1041 cp->result = DID_BUS_BUSY << 16;
1045 /* Handle mid-layer underflow */
1046 if ((unsigned)(cp->request_bufflen - resid) <
1048 qla_printk(KERN_INFO, ha,
1049 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1050 "detected (%x of %x bytes)...returning "
1051 "error status.\n", ha->host_no,
1052 cp->device->channel, cp->device->id,
1053 cp->device->lun, resid,
1054 cp->request_bufflen);
1056 cp->result = DID_ERROR << 16;
1060 /* Everybody online, looking good... */
1061 cp->result = DID_OK << 16;
1065 case CS_DATA_OVERRUN:
1066 DEBUG2(printk(KERN_INFO
1067 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1068 ha->host_no, cp->device->id, cp->device->lun, comp_status,
1070 DEBUG2(printk(KERN_INFO
1071 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1072 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1073 cp->cmnd[4], cp->cmnd[5]));
1074 DEBUG2(printk(KERN_INFO
1075 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1077 cp->serial_number, cp->request_bufflen, resid_len));
1079 cp->result = DID_ERROR << 16;
1082 case CS_PORT_LOGGED_OUT:
1083 case CS_PORT_CONFIG_CHG:
1086 case CS_PORT_UNAVAILABLE:
1088 * If the port is in Target Down state, return all IOs for this
1089 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1092 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1093 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1094 ha->host_no, cp->device->id, cp->device->lun,
1095 cp->serial_number, comp_status,
1096 atomic_read(&fcport->state)));
1098 cp->result = DID_BUS_BUSY << 16;
1099 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1100 qla2x00_mark_device_lost(ha, fcport, 1, 1);
1105 DEBUG2(printk(KERN_INFO
1106 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1107 ha->host_no, comp_status, scsi_status));
1109 cp->result = DID_RESET << 16;
1114 * hv2.19.12 - DID_ABORT does not retry the request if we
1115 * aborted this request then abort otherwise it must be a
1118 DEBUG2(printk(KERN_INFO
1119 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1120 ha->host_no, comp_status, scsi_status));
1122 cp->result = DID_RESET << 16;
1126 cp->result = DID_BUS_BUSY << 16;
1128 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1129 DEBUG2(printk(KERN_INFO
1130 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1131 "0x%x-0x%x\n", ha->host_no, cp->device->channel,
1132 cp->device->id, cp->device->lun, comp_status,
1136 DEBUG2(printk(KERN_INFO
1137 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1138 "sflags=%x.\n", ha->host_no, cp->device->channel,
1139 cp->device->id, cp->device->lun, comp_status, scsi_status,
1140 le16_to_cpu(sts->status_flags)));
1142 /* Check to see if logout occurred. */
1143 if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
1144 qla2x00_mark_device_lost(ha, fcport, 1, 1);
1148 DEBUG2(printk(KERN_INFO
1149 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1150 ha->host_no, comp_status, scsi_status));
1152 /* SCSI Mid-Layer handles device queue full */
1154 cp->result = DID_OK << 16 | lscsi_status;
1159 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1160 "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status));
1161 qla_printk(KERN_INFO, ha,
1162 "Unknown status detected 0x%x-0x%x.\n",
1163 comp_status, scsi_status);
1165 cp->result = DID_ERROR << 16;
1169 /* Place command on done queue. */
1170 if (ha->status_srb == NULL)
1171 qla2x00_sp_compl(ha, sp);
1175 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1176 * @ha: SCSI driver HA context
1177 * @pkt: Entry pointer
1179 * Extended sense data.
1182 qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
1184 uint8_t sense_sz = 0;
1185 srb_t *sp = ha->status_srb;
1186 struct scsi_cmnd *cp;
1188 if (sp != NULL && sp->request_sense_length != 0) {
1191 DEBUG2(printk("%s(): Cmd already returned back to OS "
1192 "sp=%p sp->state:%d\n", __func__, sp, sp->state));
1193 qla_printk(KERN_INFO, ha,
1194 "cmd is NULL: already returned to OS (sp=%p)\n",
1197 ha->status_srb = NULL;
1201 if (sp->request_sense_length > sizeof(pkt->data)) {
1202 sense_sz = sizeof(pkt->data);
1204 sense_sz = sp->request_sense_length;
1207 /* Move sense data. */
1208 if (IS_QLA24XX(ha) || IS_QLA54XX(ha))
1209 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1210 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1211 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1213 sp->request_sense_ptr += sense_sz;
1214 sp->request_sense_length -= sense_sz;
1216 /* Place command on done queue. */
1217 if (sp->request_sense_length == 0) {
1218 ha->status_srb = NULL;
1219 qla2x00_sp_compl(ha, sp);
1225 * qla2x00_error_entry() - Process an error entry.
1226 * @ha: SCSI driver HA context
1227 * @pkt: Entry pointer
1230 qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
1234 #if defined(QL_DEBUG_LEVEL_2)
1235 if (pkt->entry_status & RF_INV_E_ORDER)
1236 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1237 else if (pkt->entry_status & RF_INV_E_COUNT)
1238 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1239 else if (pkt->entry_status & RF_INV_E_PARAM)
1240 qla_printk(KERN_ERR, ha,
1241 "%s: Invalid Entry Parameter\n", __func__);
1242 else if (pkt->entry_status & RF_INV_E_TYPE)
1243 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1244 else if (pkt->entry_status & RF_BUSY)
1245 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1247 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1250 /* Validate handle. */
1251 if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
1252 sp = ha->outstanding_cmds[pkt->handle];
1257 /* Free outstanding command slot. */
1258 ha->outstanding_cmds[pkt->handle] = NULL;
1260 /* Bad payload or header */
1261 if (pkt->entry_status &
1262 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1263 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1264 sp->cmd->result = DID_ERROR << 16;
1265 } else if (pkt->entry_status & RF_BUSY) {
1266 sp->cmd->result = DID_BUS_BUSY << 16;
1268 sp->cmd->result = DID_ERROR << 16;
1270 qla2x00_sp_compl(ha, sp);
1272 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1273 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1274 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1276 qla_printk(KERN_WARNING, ha,
1277 "Error entry - invalid handle\n");
1279 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1280 qla2xxx_wake_dpc(ha);
1285 * qla2x00_ms_entry() - Process a Management Server entry.
1286 * @ha: SCSI driver HA context
1287 * @index: Response queue out pointer
1290 qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt)
1294 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1295 __func__, ha->host_no, pkt, pkt->handle1));
1297 /* Validate handle. */
1298 if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
1299 sp = ha->outstanding_cmds[pkt->handle1];
1304 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1306 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");
1308 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1312 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
1313 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
1315 /* Free outstanding command slot. */
1316 ha->outstanding_cmds[pkt->handle1] = NULL;
1318 qla2x00_sp_compl(ha, sp);
1323 * qla24xx_mbx_completion() - Process mailbox command completions.
1324 * @ha: SCSI driver HA context
1325 * @mb0: Mailbox0 register
1328 qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
1331 uint16_t __iomem *wptr;
1332 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1334 /* Load return mailbox registers. */
1335 ha->flags.mbox_int = 1;
1336 ha->mailbox_out[0] = mb0;
1337 wptr = (uint16_t __iomem *)®->mailbox1;
1339 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1340 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1345 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1346 __func__, ha->host_no, ha->mcp->mb[0]));
1348 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1349 __func__, ha->host_no));
1354 * qla24xx_process_response_queue() - Process response queue entries.
1355 * @ha: SCSI driver HA context
1358 qla24xx_process_response_queue(struct scsi_qla_host *ha)
1360 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1361 struct sts_entry_24xx *pkt;
1363 if (!ha->flags.online)
1366 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
1367 pkt = (struct sts_entry_24xx *)ha->response_ring_ptr;
1369 ha->rsp_ring_index++;
1370 if (ha->rsp_ring_index == ha->response_q_length) {
1371 ha->rsp_ring_index = 0;
1372 ha->response_ring_ptr = ha->response_ring;
1374 ha->response_ring_ptr++;
1377 if (pkt->entry_status != 0) {
1378 DEBUG3(printk(KERN_INFO
1379 "scsi(%ld): Process error entry.\n", ha->host_no));
1381 qla2x00_error_entry(ha, (sts_entry_t *) pkt);
1382 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1387 switch (pkt->entry_type) {
1389 qla2x00_status_entry(ha, pkt);
1391 case STATUS_CONT_TYPE:
1392 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
1395 qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt);
1398 /* Type Not Supported. */
1399 DEBUG4(printk(KERN_WARNING
1400 "scsi(%ld): Received unknown response pkt type %x "
1401 "entry status=%x.\n",
1402 ha->host_no, pkt->entry_type, pkt->entry_status));
1405 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1409 /* Adjust ring index */
1410 WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index);
1414 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1416 * @dev_id: SCSI driver HA context
1419 * Called by system whenever the host adapter generates an interrupt.
1421 * Returns handled flag.
1424 qla24xx_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
1426 scsi_qla_host_t *ha;
1427 struct device_reg_24xx __iomem *reg;
1429 unsigned long flags;
1435 ha = (scsi_qla_host_t *) dev_id;
1438 "%s(): NULL host pointer\n", __func__);
1442 reg = &ha->iobase->isp24;
1445 spin_lock_irqsave(&ha->hardware_lock, flags);
1446 for (iter = 50; iter--; ) {
1447 stat = RD_REG_DWORD(®->host_status);
1448 if (stat & HSRX_RISC_PAUSED) {
1449 hccr = RD_REG_DWORD(®->hccr);
1451 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
1452 "Dumping firmware!\n", hccr);
1453 qla24xx_fw_dump(ha, 1);
1455 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1457 } else if ((stat & HSRX_RISC_INT) == 0)
1460 switch (stat & 0xff) {
1465 qla24xx_mbx_completion(ha, MSW(stat));
1466 status |= MBX_INTERRUPT;
1471 mb[1] = RD_REG_WORD(®->mailbox1);
1472 mb[2] = RD_REG_WORD(®->mailbox2);
1473 mb[3] = RD_REG_WORD(®->mailbox3);
1474 qla2x00_async_event(ha, mb);
1477 qla24xx_process_response_queue(ha);
1480 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1482 ha->host_no, stat & 0xff));
1485 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
1486 RD_REG_DWORD_RELAXED(®->hccr);
1488 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1490 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
1491 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1492 spin_lock_irqsave(&ha->mbx_reg_lock, flags);
1494 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
1495 up(&ha->mbx_intr_sem);
1497 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
1504 * qla24xx_ms_entry() - Process a Management Server entry.
1505 * @ha: SCSI driver HA context
1506 * @index: Response queue out pointer
1509 qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt)
1513 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1514 __func__, ha->host_no, pkt, pkt->handle));
1516 DEBUG9(printk("%s: ct pkt dump:\n", __func__);)
1517 DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx));)
1519 /* Validate handle. */
1520 if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
1521 sp = ha->outstanding_cmds[pkt->handle];
1526 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1528 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
1530 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n",
1533 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1537 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status);
1538 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
1540 /* Free outstanding command slot. */
1541 ha->outstanding_cmds[pkt->handle] = NULL;
1543 qla2x00_sp_compl(ha, sp);