2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <linux/delay.h>
10 #include <scsi/scsi_tcq.h>
12 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
13 static void qla2x00_process_completed_request(struct scsi_qla_host *,
14 struct req_que *, uint32_t);
15 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
16 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
17 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
21 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
23 * @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)
33 struct qla_hw_data *ha;
34 struct device_reg_2xxx __iomem *reg;
42 rsp = (struct rsp_que *) dev_id;
45 "%s(): NULL response queue pointer\n", __func__);
50 reg = &ha->iobase->isp;
53 spin_lock_irqsave(&ha->hardware_lock, flags);
54 vha = pci_get_drvdata(ha->pdev);
55 for (iter = 50; iter--; ) {
56 hccr = RD_REG_WORD(®->hccr);
57 if (hccr & HCCR_RISC_PAUSE) {
58 if (pci_channel_offline(ha->pdev))
62 * Issue a "HARD" reset in order for the RISC interrupt
63 * bit to be cleared. Schedule a big hammmer to get
64 * out of the RISC PAUSED state.
66 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
67 RD_REG_WORD(®->hccr);
69 ha->isp_ops->fw_dump(vha, 1);
70 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
72 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
75 if (RD_REG_WORD(®->semaphore) & BIT_0) {
76 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
77 RD_REG_WORD(®->hccr);
79 /* Get mailbox data. */
80 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
81 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
82 qla2x00_mbx_completion(vha, mb[0]);
83 status |= MBX_INTERRUPT;
84 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
85 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
86 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
87 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
88 qla2x00_async_event(vha, rsp, mb);
91 DEBUG2(printk("scsi(%ld): Unrecognized "
92 "interrupt type (%d).\n",
93 vha->host_no, mb[0]));
95 /* Release mailbox registers. */
96 WRT_REG_WORD(®->semaphore, 0);
97 RD_REG_WORD(®->semaphore);
99 qla2x00_process_response_queue(rsp);
101 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
102 RD_REG_WORD(®->hccr);
105 spin_unlock_irqrestore(&ha->hardware_lock, flags);
107 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
108 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
109 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
110 complete(&ha->mbx_intr_comp);
113 return (IRQ_HANDLED);
117 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
119 * @dev_id: SCSI driver HA context
121 * Called by system whenever the host adapter generates an interrupt.
123 * Returns handled flag.
126 qla2300_intr_handler(int irq, void *dev_id)
128 scsi_qla_host_t *vha;
129 struct device_reg_2xxx __iomem *reg;
136 struct qla_hw_data *ha;
139 rsp = (struct rsp_que *) dev_id;
142 "%s(): NULL response queue pointer\n", __func__);
147 reg = &ha->iobase->isp;
150 spin_lock_irqsave(&ha->hardware_lock, flags);
151 vha = pci_get_drvdata(ha->pdev);
152 for (iter = 50; iter--; ) {
153 stat = RD_REG_DWORD(®->u.isp2300.host_status);
154 if (stat & HSR_RISC_PAUSED) {
155 if (unlikely(pci_channel_offline(ha->pdev)))
158 hccr = RD_REG_WORD(®->hccr);
159 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
160 qla_printk(KERN_INFO, ha, "Parity error -- "
161 "HCCR=%x, Dumping firmware!\n", hccr);
163 qla_printk(KERN_INFO, ha, "RISC paused -- "
164 "HCCR=%x, Dumping firmware!\n", hccr);
167 * Issue a "HARD" reset in order for the RISC
168 * interrupt bit to be cleared. Schedule a big
169 * hammmer to get out of the RISC PAUSED state.
171 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
172 RD_REG_WORD(®->hccr);
174 ha->isp_ops->fw_dump(vha, 1);
175 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
177 } else if ((stat & HSR_RISC_INT) == 0)
180 switch (stat & 0xff) {
185 qla2x00_mbx_completion(vha, MSW(stat));
186 status |= MBX_INTERRUPT;
188 /* Release mailbox registers. */
189 WRT_REG_WORD(®->semaphore, 0);
193 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
194 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
195 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
196 qla2x00_async_event(vha, rsp, mb);
199 qla2x00_process_response_queue(rsp);
202 mb[0] = MBA_CMPLT_1_16BIT;
204 qla2x00_async_event(vha, rsp, mb);
207 mb[0] = MBA_SCSI_COMPLETION;
209 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
210 qla2x00_async_event(vha, rsp, mb);
213 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
215 vha->host_no, stat & 0xff));
218 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
219 RD_REG_WORD_RELAXED(®->hccr);
221 spin_unlock_irqrestore(&ha->hardware_lock, flags);
223 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
224 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
225 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
226 complete(&ha->mbx_intr_comp);
229 return (IRQ_HANDLED);
233 * qla2x00_mbx_completion() - Process mailbox command completions.
234 * @ha: SCSI driver HA context
235 * @mb0: Mailbox0 register
238 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
241 uint16_t __iomem *wptr;
242 struct qla_hw_data *ha = vha->hw;
243 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
245 /* Load return mailbox registers. */
246 ha->flags.mbox_int = 1;
247 ha->mailbox_out[0] = mb0;
248 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
250 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
251 if (IS_QLA2200(ha) && cnt == 8)
252 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
253 if (cnt == 4 || cnt == 5)
254 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
256 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
262 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
263 __func__, vha->host_no, ha->mcp->mb[0]));
265 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
266 __func__, vha->host_no));
271 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
273 static char *event[] =
274 { "Complete", "Request Notification", "Time Extension" };
276 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
277 uint16_t __iomem *wptr;
278 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
280 /* Seed data -- mailbox1 -> mailbox7. */
281 wptr = (uint16_t __iomem *)®24->mailbox1;
282 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
283 mb[cnt] = RD_REG_WORD(wptr);
285 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
286 "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no,
288 mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6]));
290 /* Acknowledgement needed? [Notify && non-zero timeout]. */
291 timeout = (descr >> 8) & 0xf;
292 if (aen != MBA_IDC_NOTIFY || !timeout)
295 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
296 "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout));
298 rval = qla2x00_post_idc_ack_work(vha, mb);
299 if (rval != QLA_SUCCESS)
300 qla_printk(KERN_WARNING, vha->hw,
301 "IDC failed to post ACK.\n");
305 * qla2x00_async_event() - Process aynchronous events.
306 * @ha: SCSI driver HA context
307 * @mb: Mailbox registers (0 - 3)
310 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
313 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
318 struct qla_hw_data *ha = vha->hw;
319 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
320 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
321 uint32_t rscn_entry, host_pid;
322 uint8_t rscn_queue_index;
325 /* Setup to process RIO completion. */
330 case MBA_SCSI_COMPLETION:
331 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
334 case MBA_CMPLT_1_16BIT:
337 mb[0] = MBA_SCSI_COMPLETION;
339 case MBA_CMPLT_2_16BIT:
343 mb[0] = MBA_SCSI_COMPLETION;
345 case MBA_CMPLT_3_16BIT:
350 mb[0] = MBA_SCSI_COMPLETION;
352 case MBA_CMPLT_4_16BIT:
356 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
358 mb[0] = MBA_SCSI_COMPLETION;
360 case MBA_CMPLT_5_16BIT:
364 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
365 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
367 mb[0] = MBA_SCSI_COMPLETION;
369 case MBA_CMPLT_2_32BIT:
370 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
371 handles[1] = le32_to_cpu(
372 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
373 RD_MAILBOX_REG(ha, reg, 6));
375 mb[0] = MBA_SCSI_COMPLETION;
382 case MBA_SCSI_COMPLETION: /* Fast Post */
383 if (!vha->flags.online)
386 for (cnt = 0; cnt < handle_cnt; cnt++)
387 qla2x00_process_completed_request(vha, rsp->req,
391 case MBA_RESET: /* Reset */
392 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n",
395 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
398 case MBA_SYSTEM_ERR: /* System Error */
399 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox7) : 0;
400 qla_printk(KERN_INFO, ha,
401 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
402 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
404 ha->isp_ops->fw_dump(vha, 1);
406 if (IS_FWI2_CAPABLE(ha)) {
407 if (mb[1] == 0 && mb[2] == 0) {
408 qla_printk(KERN_ERR, ha,
409 "Unrecoverable Hardware Error: adapter "
410 "marked OFFLINE!\n");
411 vha->flags.online = 0;
413 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
414 } else if (mb[1] == 0) {
415 qla_printk(KERN_INFO, ha,
416 "Unrecoverable Hardware Error: adapter marked "
418 vha->flags.online = 0;
420 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
423 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
424 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n",
425 vha->host_no, mb[1]));
426 qla_printk(KERN_WARNING, ha,
427 "ISP Request Transfer Error (%x).\n", mb[1]);
429 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
432 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
433 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
435 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
437 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
440 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
441 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
445 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
446 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no,
448 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
450 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
451 atomic_set(&vha->loop_state, LOOP_DOWN);
452 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
453 qla2x00_mark_all_devices_lost(vha, 1);
457 atomic_set(&vha->vp_state, VP_FAILED);
458 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
461 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
462 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
464 vha->flags.management_server_logged_in = 0;
465 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
468 case MBA_LOOP_UP: /* Loop Up Event */
469 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
470 link_speed = link_speeds[0];
471 ha->link_data_rate = PORT_SPEED_1GB;
473 link_speed = link_speeds[LS_UNKNOWN];
475 link_speed = link_speeds[mb[1]];
476 else if (mb[1] == 0x13)
477 link_speed = link_speeds[5];
478 ha->link_data_rate = mb[1];
481 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
482 vha->host_no, link_speed));
483 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
486 vha->flags.management_server_logged_in = 0;
487 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
490 case MBA_LOOP_DOWN: /* Loop Down Event */
491 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox4) : 0;
492 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
493 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3],
495 qla_printk(KERN_INFO, ha,
496 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3],
499 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
500 atomic_set(&vha->loop_state, LOOP_DOWN);
501 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
502 vha->device_flags |= DFLG_NO_CABLE;
503 qla2x00_mark_all_devices_lost(vha, 1);
507 atomic_set(&vha->vp_state, VP_FAILED);
508 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
511 vha->flags.management_server_logged_in = 0;
512 ha->link_data_rate = PORT_SPEED_UNKNOWN;
513 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
516 case MBA_LIP_RESET: /* LIP reset occurred */
517 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
518 vha->host_no, mb[1]));
519 qla_printk(KERN_INFO, ha,
520 "LIP reset occurred (%x).\n", mb[1]);
522 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
523 atomic_set(&vha->loop_state, LOOP_DOWN);
524 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
525 qla2x00_mark_all_devices_lost(vha, 1);
529 atomic_set(&vha->vp_state, VP_FAILED);
530 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
533 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
535 ha->operating_mode = LOOP;
536 vha->flags.management_server_logged_in = 0;
537 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
540 /* case MBA_DCBX_COMPLETE: */
541 case MBA_POINT_TO_POINT: /* Point-to-Point */
546 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x "
547 "%04x\n", vha->host_no, mb[1], mb[2], mb[3]));
549 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE "
550 "received.\n", vha->host_no));
553 * Until there's a transition from loop down to loop up, treat
554 * this as loop down only.
556 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
557 atomic_set(&vha->loop_state, LOOP_DOWN);
558 if (!atomic_read(&vha->loop_down_timer))
559 atomic_set(&vha->loop_down_timer,
561 qla2x00_mark_all_devices_lost(vha, 1);
565 atomic_set(&vha->vp_state, VP_FAILED);
566 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
569 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
570 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
572 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
573 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
575 ha->flags.gpsc_supported = 1;
576 vha->flags.management_server_logged_in = 0;
579 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
583 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
586 qla_printk(KERN_INFO, ha,
587 "Configuration change detected: value=%x.\n", mb[1]);
589 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
590 atomic_set(&vha->loop_state, LOOP_DOWN);
591 if (!atomic_read(&vha->loop_down_timer))
592 atomic_set(&vha->loop_down_timer,
594 qla2x00_mark_all_devices_lost(vha, 1);
598 atomic_set(&vha->vp_state, VP_FAILED);
599 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
602 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
603 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
606 case MBA_PORT_UPDATE: /* Port database update */
608 * Handle only global and vn-port update events
611 * mb[1] = N_Port handle of changed port
612 * OR 0xffff for global event
613 * mb[2] = New login state
614 * 7 = Port logged out
615 * mb[3] = LSB is vp_idx, 0xff = all vps
617 * Skip processing if:
618 * Event is global, vp_idx is NOT all vps,
619 * vp_idx does not match
620 * Event is not global, vp_idx does not match
622 if ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff)
623 || (mb[1] != 0xffff)) {
624 if (vha->vp_idx != (mb[3] & 0xff))
628 /* Global event -- port logout or port unavailable. */
629 if (mb[1] == 0xffff && mb[2] == 0x7) {
630 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
632 DEBUG(printk(KERN_INFO
633 "scsi(%ld): Port unavailable %04x %04x %04x.\n",
634 vha->host_no, mb[1], mb[2], mb[3]));
636 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
637 atomic_set(&vha->loop_state, LOOP_DOWN);
638 atomic_set(&vha->loop_down_timer,
640 vha->device_flags |= DFLG_NO_CABLE;
641 qla2x00_mark_all_devices_lost(vha, 1);
645 atomic_set(&vha->vp_state, VP_FAILED);
646 fc_vport_set_state(vha->fc_vport,
648 qla2x00_mark_all_devices_lost(vha, 1);
651 vha->flags.management_server_logged_in = 0;
652 ha->link_data_rate = PORT_SPEED_UNKNOWN;
657 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
658 * event etc. earlier indicating loop is down) then process
659 * it. Otherwise ignore it and Wait for RSCN to come in.
661 atomic_set(&vha->loop_down_timer, 0);
662 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
663 atomic_read(&vha->loop_state) != LOOP_DEAD) {
664 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
665 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1],
670 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
672 DEBUG(printk(KERN_INFO
673 "scsi(%ld): Port database changed %04x %04x %04x.\n",
674 vha->host_no, mb[1], mb[2], mb[3]));
677 * Mark all devices as missing so we will login again.
679 atomic_set(&vha->loop_state, LOOP_UP);
681 qla2x00_mark_all_devices_lost(vha, 1);
683 vha->flags.rscn_queue_overflow = 1;
685 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
686 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
689 case MBA_RSCN_UPDATE: /* State Change Registration */
690 /* Check if the Vport has issued a SCR */
691 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
693 /* Only handle SCNs for our Vport index. */
694 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
697 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
699 DEBUG(printk(KERN_INFO
700 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
701 vha->host_no, mb[1], mb[2], mb[3]));
703 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
704 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
706 if (rscn_entry == host_pid) {
707 DEBUG(printk(KERN_INFO
708 "scsi(%ld): Ignoring RSCN update to local host "
710 vha->host_no, host_pid));
714 /* Ignore reserved bits from RSCN-payload. */
715 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
716 rscn_queue_index = vha->rscn_in_ptr + 1;
717 if (rscn_queue_index == MAX_RSCN_COUNT)
718 rscn_queue_index = 0;
719 if (rscn_queue_index != vha->rscn_out_ptr) {
720 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
721 vha->rscn_in_ptr = rscn_queue_index;
723 vha->flags.rscn_queue_overflow = 1;
726 atomic_set(&vha->loop_state, LOOP_UPDATE);
727 atomic_set(&vha->loop_down_timer, 0);
728 vha->flags.management_server_logged_in = 0;
730 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
731 set_bit(RSCN_UPDATE, &vha->dpc_flags);
732 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
735 /* case MBA_RIO_RESPONSE: */
736 case MBA_ZIO_RESPONSE:
737 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
740 if (IS_FWI2_CAPABLE(ha))
741 qla24xx_process_response_queue(vha, rsp);
743 qla2x00_process_response_queue(rsp);
746 case MBA_DISCARD_RND_FRAME:
747 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
748 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
751 case MBA_TRACE_NOTIFICATION:
752 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
753 vha->host_no, mb[1], mb[2]));
756 case MBA_ISP84XX_ALERT:
757 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
758 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
760 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
762 case A84_PANIC_RECOVERY:
763 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
764 "%04x %04x\n", mb[2], mb[3]);
766 case A84_OP_LOGIN_COMPLETE:
767 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
768 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
769 "firmware version %x\n", ha->cs84xx->op_fw_version));
771 case A84_DIAG_LOGIN_COMPLETE:
772 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
773 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
774 "diagnostic firmware version %x\n",
775 ha->cs84xx->diag_fw_version));
777 case A84_GOLD_LOGIN_COMPLETE:
778 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
779 ha->cs84xx->fw_update = 1;
780 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
781 "firmware version %x\n",
782 ha->cs84xx->gold_fw_version));
785 qla_printk(KERN_ERR, ha,
786 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
787 mb[1], mb[2], mb[3]);
789 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
792 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n",
793 vha->host_no, mb[1], mb[2], mb[3]));
795 case MBA_DCBX_PARAM_UPDATE:
796 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- "
797 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
799 case MBA_FCF_CONF_ERR:
800 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- "
801 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
803 case MBA_IDC_COMPLETE:
805 case MBA_IDC_TIME_EXT:
806 qla81xx_idc_event(vha, mb[0], mb[1]);
810 if (!vha->vp_idx && ha->num_vhosts)
811 qla2x00_alert_all_vps(rsp, mb);
815 * qla2x00_process_completed_request() - Process a Fast Post response.
816 * @ha: SCSI driver HA context
820 qla2x00_process_completed_request(struct scsi_qla_host *vha,
821 struct req_que *req, uint32_t index)
824 struct qla_hw_data *ha = vha->hw;
826 /* Validate handle. */
827 if (index >= MAX_OUTSTANDING_COMMANDS) {
828 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
829 vha->host_no, index));
830 qla_printk(KERN_WARNING, ha,
831 "Invalid SCSI completion handle %d.\n", index);
833 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
837 sp = req->outstanding_cmds[index];
839 /* Free outstanding command slot. */
840 req->outstanding_cmds[index] = NULL;
842 /* Save ISP completion status */
843 sp->cmd->result = DID_OK << 16;
844 qla2x00_sp_compl(ha, sp);
846 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
847 " handle(%d)\n", vha->host_no, req->id, index));
848 qla_printk(KERN_WARNING, ha,
849 "Invalid ISP SCSI completion handle\n");
851 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
856 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
857 struct req_que *req, void *iocb)
859 struct qla_hw_data *ha = vha->hw;
860 sts_entry_t *pkt = iocb;
864 index = LSW(pkt->handle);
865 if (index >= MAX_OUTSTANDING_COMMANDS) {
866 qla_printk(KERN_WARNING, ha,
867 "%s: Invalid completion handle (%x).\n", func, index);
868 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
871 sp = req->outstanding_cmds[index];
873 qla_printk(KERN_WARNING, ha,
874 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
878 if (sp->handle != index) {
879 qla_printk(KERN_WARNING, ha,
880 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
884 req->outstanding_cmds[index] = NULL;
890 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
891 struct mbx_entry *mbx)
893 const char func[] = "MBX-IOCB";
895 struct qla_hw_data *ha = vha->hw;
898 struct srb_logio *lio;
901 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
907 switch (lio->ctx.type) {
915 qla_printk(KERN_WARNING, ha,
916 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
921 del_timer(&lio->ctx.timer);
924 data[0] = data[1] = 0;
925 if (mbx->entry_status) {
926 DEBUG2(printk(KERN_WARNING
927 "scsi(%ld:%x): Async-%s error entry - entry-status=%x "
928 "status=%x state-flag=%x status-flags=%x.\n",
929 fcport->vha->host_no, sp->handle, type,
930 mbx->entry_status, le16_to_cpu(mbx->status),
931 le16_to_cpu(mbx->state_flags),
932 le16_to_cpu(mbx->status_flags)));
933 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
935 data[0] = MBS_COMMAND_ERROR;
936 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
937 QLA_LOGIO_LOGIN_RETRIED: 0;
938 goto done_post_logio_done_work;
941 if (!mbx->status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
942 DEBUG2(printk(KERN_DEBUG
943 "scsi(%ld:%x): Async-%s complete - mbx1=%x.\n",
944 fcport->vha->host_no, sp->handle, type,
945 le16_to_cpu(mbx->mb1)));
947 data[0] = MBS_COMMAND_COMPLETE;
948 if (lio->ctx.type == SRB_LOGIN_CMD && le16_to_cpu(mbx->mb1) & BIT_1)
949 fcport->flags |= FCF_FCP2_DEVICE;
951 goto done_post_logio_done_work;
954 data[0] = le16_to_cpu(mbx->mb0);
956 case MBS_PORT_ID_USED:
957 data[1] = le16_to_cpu(mbx->mb1);
959 case MBS_LOOP_ID_USED:
962 data[0] = MBS_COMMAND_ERROR;
963 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
964 QLA_LOGIO_LOGIN_RETRIED: 0;
968 DEBUG2(printk(KERN_WARNING
969 "scsi(%ld:%x): Async-%s failed - status=%x mb0=%x mb1=%x mb2=%x "
971 fcport->vha->host_no, sp->handle, type, le16_to_cpu(mbx->status),
972 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
973 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
974 le16_to_cpu(mbx->mb7)));
976 done_post_logio_done_work:
977 lio->ctx.type == SRB_LOGIN_CMD ?
978 qla2x00_post_async_login_done_work(fcport->vha, fcport, data):
979 qla2x00_post_async_logout_done_work(fcport->vha, fcport, data);
985 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
986 struct logio_entry_24xx *logio)
988 const char func[] = "LOGIO-IOCB";
990 struct qla_hw_data *ha = vha->hw;
993 struct srb_logio *lio;
997 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1003 switch (lio->ctx.type) {
1007 case SRB_LOGOUT_CMD:
1011 qla_printk(KERN_WARNING, ha,
1012 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1017 del_timer(&lio->ctx.timer);
1018 fcport = sp->fcport;
1020 data[0] = data[1] = 0;
1021 if (logio->entry_status) {
1022 DEBUG2(printk(KERN_WARNING
1023 "scsi(%ld:%x): Async-%s error entry - entry-status=%x.\n",
1024 fcport->vha->host_no, sp->handle, type,
1025 logio->entry_status));
1026 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1028 data[0] = MBS_COMMAND_ERROR;
1029 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1030 QLA_LOGIO_LOGIN_RETRIED: 0;
1031 goto done_post_logio_done_work;
1034 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1035 DEBUG2(printk(KERN_DEBUG
1036 "scsi(%ld:%x): Async-%s complete - iop0=%x.\n",
1037 fcport->vha->host_no, sp->handle, type,
1038 le32_to_cpu(logio->io_parameter[0])));
1040 data[0] = MBS_COMMAND_COMPLETE;
1041 if (lio->ctx.type == SRB_LOGOUT_CMD)
1042 goto done_post_logio_done_work;
1044 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1045 if (iop[0] & BIT_4) {
1046 fcport->port_type = FCT_TARGET;
1048 fcport->flags |= FCF_FCP2_DEVICE;
1051 fcport->port_type = FCT_INITIATOR;
1052 if (logio->io_parameter[7] || logio->io_parameter[8])
1053 fcport->supported_classes |= FC_COS_CLASS2;
1054 if (logio->io_parameter[9] || logio->io_parameter[10])
1055 fcport->supported_classes |= FC_COS_CLASS3;
1057 goto done_post_logio_done_work;
1060 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1061 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1063 case LSC_SCODE_PORTID_USED:
1064 data[0] = MBS_PORT_ID_USED;
1065 data[1] = LSW(iop[1]);
1067 case LSC_SCODE_NPORT_USED:
1068 data[0] = MBS_LOOP_ID_USED;
1070 case LSC_SCODE_CMD_FAILED:
1071 if ((iop[1] & 0xff) == 0x05) {
1072 data[0] = MBS_NOT_LOGGED_IN;
1077 data[0] = MBS_COMMAND_ERROR;
1078 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1079 QLA_LOGIO_LOGIN_RETRIED: 0;
1083 DEBUG2(printk(KERN_WARNING
1084 "scsi(%ld:%x): Async-%s failed - comp=%x iop0=%x iop1=%x.\n",
1085 fcport->vha->host_no, sp->handle, type,
1086 le16_to_cpu(logio->comp_status),
1087 le32_to_cpu(logio->io_parameter[0]),
1088 le32_to_cpu(logio->io_parameter[1])));
1090 done_post_logio_done_work:
1091 lio->ctx.type == SRB_LOGIN_CMD ?
1092 qla2x00_post_async_login_done_work(fcport->vha, fcport, data):
1093 qla2x00_post_async_logout_done_work(fcport->vha, fcport, data);
1099 * qla2x00_process_response_queue() - Process response queue entries.
1100 * @ha: SCSI driver HA context
1103 qla2x00_process_response_queue(struct rsp_que *rsp)
1105 struct scsi_qla_host *vha;
1106 struct qla_hw_data *ha = rsp->hw;
1107 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1109 uint16_t handle_cnt;
1112 vha = pci_get_drvdata(ha->pdev);
1114 if (!vha->flags.online)
1117 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1118 pkt = (sts_entry_t *)rsp->ring_ptr;
1121 if (rsp->ring_index == rsp->length) {
1122 rsp->ring_index = 0;
1123 rsp->ring_ptr = rsp->ring;
1128 if (pkt->entry_status != 0) {
1129 DEBUG3(printk(KERN_INFO
1130 "scsi(%ld): Process error entry.\n", vha->host_no));
1132 qla2x00_error_entry(vha, rsp, pkt);
1133 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1138 switch (pkt->entry_type) {
1140 qla2x00_status_entry(vha, rsp, pkt);
1142 case STATUS_TYPE_21:
1143 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1144 for (cnt = 0; cnt < handle_cnt; cnt++) {
1145 qla2x00_process_completed_request(vha, rsp->req,
1146 ((sts21_entry_t *)pkt)->handle[cnt]);
1149 case STATUS_TYPE_22:
1150 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1151 for (cnt = 0; cnt < handle_cnt; cnt++) {
1152 qla2x00_process_completed_request(vha, rsp->req,
1153 ((sts22_entry_t *)pkt)->handle[cnt]);
1156 case STATUS_CONT_TYPE:
1157 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1160 qla2x00_mbx_iocb_entry(vha, rsp->req,
1161 (struct mbx_entry *)pkt);
1163 /* Type Not Supported. */
1164 DEBUG4(printk(KERN_WARNING
1165 "scsi(%ld): Received unknown response pkt type %x "
1166 "entry status=%x.\n",
1167 vha->host_no, pkt->entry_type, pkt->entry_status));
1170 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1174 /* Adjust ring index */
1175 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1179 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len,
1180 struct rsp_que *rsp)
1182 struct scsi_cmnd *cp = sp->cmd;
1184 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1185 sense_len = SCSI_SENSE_BUFFERSIZE;
1187 sp->request_sense_length = sense_len;
1188 sp->request_sense_ptr = cp->sense_buffer;
1189 if (sp->request_sense_length > 32)
1192 memcpy(cp->sense_buffer, sense_data, sense_len);
1194 sp->request_sense_ptr += sense_len;
1195 sp->request_sense_length -= sense_len;
1196 if (sp->request_sense_length != 0)
1197 rsp->status_srb = sp;
1199 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1200 "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no,
1201 cp->device->channel, cp->device->id, cp->device->lun, cp,
1202 cp->serial_number));
1204 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1208 * qla2x00_status_entry() - Process a Status IOCB entry.
1209 * @ha: SCSI driver HA context
1210 * @pkt: Entry pointer
1213 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1217 struct scsi_cmnd *cp;
1219 struct sts_entry_24xx *sts24;
1220 uint16_t comp_status;
1221 uint16_t scsi_status;
1222 uint8_t lscsi_status;
1224 uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len;
1225 uint8_t *rsp_info, *sense_data;
1226 struct qla_hw_data *ha = vha->hw;
1229 struct req_que *req;
1231 sts = (sts_entry_t *) pkt;
1232 sts24 = (struct sts_entry_24xx *) pkt;
1233 if (IS_FWI2_CAPABLE(ha)) {
1234 comp_status = le16_to_cpu(sts24->comp_status);
1235 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1237 comp_status = le16_to_cpu(sts->comp_status);
1238 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1240 handle = (uint32_t) LSW(sts->handle);
1241 que = MSW(sts->handle);
1242 req = ha->req_q_map[que];
1243 /* Fast path completion. */
1244 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1245 qla2x00_process_completed_request(vha, req, handle);
1250 /* Validate handle. */
1251 if (handle < MAX_OUTSTANDING_COMMANDS) {
1252 sp = req->outstanding_cmds[handle];
1253 req->outstanding_cmds[handle] = NULL;
1258 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
1260 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
1262 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1263 qla2xxx_wake_dpc(vha);
1268 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
1269 "pkt->handle=%d sp=%p.\n", vha->host_no, handle, sp));
1270 qla_printk(KERN_WARNING, ha,
1271 "Command is NULL: already returned to OS (sp=%p)\n", sp);
1276 lscsi_status = scsi_status & STATUS_MASK;
1278 fcport = sp->fcport;
1280 sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
1281 if (IS_FWI2_CAPABLE(ha)) {
1282 if (scsi_status & SS_SENSE_LEN_VALID)
1283 sense_len = le32_to_cpu(sts24->sense_len);
1284 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1285 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1286 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1287 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1288 if (comp_status == CS_DATA_UNDERRUN)
1289 fw_resid_len = le32_to_cpu(sts24->residual_len);
1290 rsp_info = sts24->data;
1291 sense_data = sts24->data;
1292 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1294 if (scsi_status & SS_SENSE_LEN_VALID)
1295 sense_len = le16_to_cpu(sts->req_sense_length);
1296 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1297 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1298 resid_len = le32_to_cpu(sts->residual_length);
1299 rsp_info = sts->rsp_info;
1300 sense_data = sts->req_sense_data;
1303 /* Check for any FCP transport errors. */
1304 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1305 /* Sense data lies beyond any FCP RESPONSE data. */
1306 if (IS_FWI2_CAPABLE(ha))
1307 sense_data += rsp_info_len;
1308 if (rsp_info_len > 3 && rsp_info[3]) {
1309 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
1310 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
1311 "retrying command\n", vha->host_no,
1312 cp->device->channel, cp->device->id,
1313 cp->device->lun, rsp_info_len, rsp_info[0],
1314 rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
1315 rsp_info[5], rsp_info[6], rsp_info[7]));
1317 cp->result = DID_BUS_BUSY << 16;
1318 qla2x00_sp_compl(ha, sp);
1323 /* Check for overrun. */
1324 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1325 scsi_status & SS_RESIDUAL_OVER)
1326 comp_status = CS_DATA_OVERRUN;
1329 * Based on Host and scsi status generate status code for Linux
1331 switch (comp_status) {
1334 if (scsi_status == 0) {
1335 cp->result = DID_OK << 16;
1338 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1340 scsi_set_resid(cp, resid);
1342 if (!lscsi_status &&
1343 ((unsigned)(scsi_bufflen(cp) - resid) <
1345 qla_printk(KERN_INFO, ha,
1346 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1347 "detected (%x of %x bytes)...returning "
1348 "error status.\n", vha->host_no,
1349 cp->device->channel, cp->device->id,
1350 cp->device->lun, resid,
1353 cp->result = DID_ERROR << 16;
1357 cp->result = DID_OK << 16 | lscsi_status;
1359 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1360 DEBUG2(printk(KERN_INFO
1361 "scsi(%ld): QUEUE FULL status detected "
1362 "0x%x-0x%x.\n", vha->host_no, comp_status,
1366 if (lscsi_status != SS_CHECK_CONDITION)
1369 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1370 if (!(scsi_status & SS_SENSE_LEN_VALID))
1373 qla2x00_handle_sense(sp, sense_data, sense_len, rsp);
1376 case CS_DATA_UNDERRUN:
1377 DEBUG2(printk(KERN_INFO
1378 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x. "
1379 "resid=0x%x fw_resid=0x%x cdb=0x%x os_underflow=0x%x\n",
1380 vha->host_no, cp->device->id, cp->device->lun, comp_status,
1381 scsi_status, resid_len, fw_resid_len, cp->cmnd[0],
1384 /* Use F/W calculated residual length. */
1385 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1386 scsi_set_resid(cp, resid);
1387 if (scsi_status & SS_RESIDUAL_UNDER) {
1388 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1390 "scsi(%ld:%d:%d:%d) Dropped frame(s) "
1391 "detected (%x of %x bytes)...residual "
1392 "length mismatch...retrying command.\n",
1393 vha->host_no, cp->device->channel,
1394 cp->device->id, cp->device->lun, resid,
1397 cp->result = DID_ERROR << 16 | lscsi_status;
1401 if (!lscsi_status &&
1402 ((unsigned)(scsi_bufflen(cp) - resid) <
1404 qla_printk(KERN_INFO, ha,
1405 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1406 "detected (%x of %x bytes)...returning "
1407 "error status.\n", vha->host_no,
1408 cp->device->channel, cp->device->id,
1409 cp->device->lun, resid, scsi_bufflen(cp));
1411 cp->result = DID_ERROR << 16;
1414 } else if (!lscsi_status) {
1416 "scsi(%ld:%d:%d:%d) Dropped frame(s) detected "
1417 "(%x of %x bytes)...firmware reported underrun..."
1418 "retrying command.\n", vha->host_no,
1419 cp->device->channel, cp->device->id,
1420 cp->device->lun, resid, scsi_bufflen(cp)));
1422 cp->result = DID_ERROR << 16;
1426 cp->result = DID_OK << 16 | lscsi_status;
1429 * Check to see if SCSI Status is non zero. If so report SCSI
1432 if (lscsi_status != 0) {
1433 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1434 DEBUG2(printk(KERN_INFO
1435 "scsi(%ld): QUEUE FULL status detected "
1436 "0x%x-0x%x.\n", vha->host_no, comp_status,
1440 if (lscsi_status != SS_CHECK_CONDITION)
1443 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1444 if (!(scsi_status & SS_SENSE_LEN_VALID))
1447 qla2x00_handle_sense(sp, sense_data, sense_len, rsp);
1451 case CS_DATA_OVERRUN:
1452 DEBUG2(printk(KERN_INFO
1453 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1454 vha->host_no, cp->device->id, cp->device->lun, comp_status,
1456 DEBUG2(printk(KERN_INFO
1457 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1458 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1459 cp->cmnd[4], cp->cmnd[5]));
1460 DEBUG2(printk(KERN_INFO
1461 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1463 cp->serial_number, scsi_bufflen(cp), resid_len));
1465 cp->result = DID_ERROR << 16;
1468 case CS_PORT_LOGGED_OUT:
1469 case CS_PORT_CONFIG_CHG:
1472 case CS_PORT_UNAVAILABLE:
1474 * If the port is in Target Down state, return all IOs for this
1475 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1478 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1479 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1480 vha->host_no, cp->device->id, cp->device->lun,
1481 cp->serial_number, comp_status,
1482 atomic_read(&fcport->state)));
1485 * We are going to have the fc class block the rport
1486 * while we try to recover so instruct the mid layer
1487 * to requeue until the class decides how to handle this.
1489 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1490 if (atomic_read(&fcport->state) == FCS_ONLINE)
1491 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1495 DEBUG2(printk(KERN_INFO
1496 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1497 vha->host_no, comp_status, scsi_status));
1499 cp->result = DID_RESET << 16;
1504 * hv2.19.12 - DID_ABORT does not retry the request if we
1505 * aborted this request then abort otherwise it must be a
1508 DEBUG2(printk(KERN_INFO
1509 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1510 vha->host_no, comp_status, scsi_status));
1512 cp->result = DID_RESET << 16;
1517 * We are going to have the fc class block the rport
1518 * while we try to recover so instruct the mid layer
1519 * to requeue until the class decides how to handle this.
1521 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1523 if (IS_FWI2_CAPABLE(ha)) {
1524 DEBUG2(printk(KERN_INFO
1525 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1526 "0x%x-0x%x\n", vha->host_no, cp->device->channel,
1527 cp->device->id, cp->device->lun, comp_status,
1531 DEBUG2(printk(KERN_INFO
1532 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1533 "sflags=%x.\n", vha->host_no, cp->device->channel,
1534 cp->device->id, cp->device->lun, comp_status, scsi_status,
1535 le16_to_cpu(sts->status_flags)));
1537 /* Check to see if logout occurred. */
1538 if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
1539 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1543 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1544 "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status));
1545 qla_printk(KERN_INFO, ha,
1546 "Unknown status detected 0x%x-0x%x.\n",
1547 comp_status, scsi_status);
1549 cp->result = DID_ERROR << 16;
1553 /* Place command on done queue. */
1554 if (rsp->status_srb == NULL)
1555 qla2x00_sp_compl(ha, sp);
1559 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1560 * @ha: SCSI driver HA context
1561 * @pkt: Entry pointer
1563 * Extended sense data.
1566 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1568 uint8_t sense_sz = 0;
1569 struct qla_hw_data *ha = rsp->hw;
1570 srb_t *sp = rsp->status_srb;
1571 struct scsi_cmnd *cp;
1573 if (sp != NULL && sp->request_sense_length != 0) {
1576 DEBUG2(printk("%s(): Cmd already returned back to OS "
1577 "sp=%p.\n", __func__, sp));
1578 qla_printk(KERN_INFO, ha,
1579 "cmd is NULL: already returned to OS (sp=%p)\n",
1582 rsp->status_srb = NULL;
1586 if (sp->request_sense_length > sizeof(pkt->data)) {
1587 sense_sz = sizeof(pkt->data);
1589 sense_sz = sp->request_sense_length;
1592 /* Move sense data. */
1593 if (IS_FWI2_CAPABLE(ha))
1594 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1595 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1596 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1598 sp->request_sense_ptr += sense_sz;
1599 sp->request_sense_length -= sense_sz;
1601 /* Place command on done queue. */
1602 if (sp->request_sense_length == 0) {
1603 rsp->status_srb = NULL;
1604 qla2x00_sp_compl(ha, sp);
1610 * qla2x00_error_entry() - Process an error entry.
1611 * @ha: SCSI driver HA context
1612 * @pkt: Entry pointer
1615 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1618 struct qla_hw_data *ha = vha->hw;
1619 uint32_t handle = LSW(pkt->handle);
1620 uint16_t que = MSW(pkt->handle);
1621 struct req_que *req = ha->req_q_map[que];
1622 #if defined(QL_DEBUG_LEVEL_2)
1623 if (pkt->entry_status & RF_INV_E_ORDER)
1624 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1625 else if (pkt->entry_status & RF_INV_E_COUNT)
1626 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1627 else if (pkt->entry_status & RF_INV_E_PARAM)
1628 qla_printk(KERN_ERR, ha,
1629 "%s: Invalid Entry Parameter\n", __func__);
1630 else if (pkt->entry_status & RF_INV_E_TYPE)
1631 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1632 else if (pkt->entry_status & RF_BUSY)
1633 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1635 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1638 /* Validate handle. */
1639 if (handle < MAX_OUTSTANDING_COMMANDS)
1640 sp = req->outstanding_cmds[handle];
1645 /* Free outstanding command slot. */
1646 req->outstanding_cmds[handle] = NULL;
1648 /* Bad payload or header */
1649 if (pkt->entry_status &
1650 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1651 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1652 sp->cmd->result = DID_ERROR << 16;
1653 } else if (pkt->entry_status & RF_BUSY) {
1654 sp->cmd->result = DID_BUS_BUSY << 16;
1656 sp->cmd->result = DID_ERROR << 16;
1658 qla2x00_sp_compl(ha, sp);
1660 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1661 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1662 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1664 qla_printk(KERN_WARNING, ha,
1665 "Error entry - invalid handle\n");
1667 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1668 qla2xxx_wake_dpc(vha);
1673 * qla24xx_mbx_completion() - Process mailbox command completions.
1674 * @ha: SCSI driver HA context
1675 * @mb0: Mailbox0 register
1678 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1681 uint16_t __iomem *wptr;
1682 struct qla_hw_data *ha = vha->hw;
1683 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1685 /* Load return mailbox registers. */
1686 ha->flags.mbox_int = 1;
1687 ha->mailbox_out[0] = mb0;
1688 wptr = (uint16_t __iomem *)®->mailbox1;
1690 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1691 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1696 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1697 __func__, vha->host_no, ha->mcp->mb[0]));
1699 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1700 __func__, vha->host_no));
1705 * qla24xx_process_response_queue() - Process response queue entries.
1706 * @ha: SCSI driver HA context
1708 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1709 struct rsp_que *rsp)
1711 struct sts_entry_24xx *pkt;
1713 if (!vha->flags.online)
1716 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1717 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1720 if (rsp->ring_index == rsp->length) {
1721 rsp->ring_index = 0;
1722 rsp->ring_ptr = rsp->ring;
1727 if (pkt->entry_status != 0) {
1728 DEBUG3(printk(KERN_INFO
1729 "scsi(%ld): Process error entry.\n", vha->host_no));
1731 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1732 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1737 switch (pkt->entry_type) {
1739 qla2x00_status_entry(vha, rsp, pkt);
1741 case STATUS_CONT_TYPE:
1742 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1744 case VP_RPT_ID_IOCB_TYPE:
1745 qla24xx_report_id_acquisition(vha,
1746 (struct vp_rpt_id_entry_24xx *)pkt);
1748 case LOGINOUT_PORT_IOCB_TYPE:
1749 qla24xx_logio_entry(vha, rsp->req,
1750 (struct logio_entry_24xx *)pkt);
1753 /* Type Not Supported. */
1754 DEBUG4(printk(KERN_WARNING
1755 "scsi(%ld): Received unknown response pkt type %x "
1756 "entry status=%x.\n",
1757 vha->host_no, pkt->entry_type, pkt->entry_status));
1760 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1764 /* Adjust ring index */
1765 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
1769 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
1773 struct qla_hw_data *ha = vha->hw;
1774 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1776 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
1780 WRT_REG_DWORD(®->iobase_addr, 0x7C00);
1781 RD_REG_DWORD(®->iobase_addr);
1782 WRT_REG_DWORD(®->iobase_window, 0x0001);
1783 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
1784 rval == QLA_SUCCESS; cnt--) {
1786 WRT_REG_DWORD(®->iobase_window, 0x0001);
1789 rval = QLA_FUNCTION_TIMEOUT;
1791 if (rval == QLA_SUCCESS)
1794 WRT_REG_DWORD(®->iobase_window, 0x0003);
1795 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
1796 rval == QLA_SUCCESS; cnt--) {
1798 WRT_REG_DWORD(®->iobase_window, 0x0003);
1801 rval = QLA_FUNCTION_TIMEOUT;
1803 if (rval != QLA_SUCCESS)
1807 if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
1808 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
1811 WRT_REG_DWORD(®->iobase_window, 0x0000);
1812 RD_REG_DWORD(®->iobase_window);
1816 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1818 * @dev_id: SCSI driver HA context
1820 * Called by system whenever the host adapter generates an interrupt.
1822 * Returns handled flag.
1825 qla24xx_intr_handler(int irq, void *dev_id)
1827 scsi_qla_host_t *vha;
1828 struct qla_hw_data *ha;
1829 struct device_reg_24xx __iomem *reg;
1835 struct rsp_que *rsp;
1836 unsigned long flags;
1838 rsp = (struct rsp_que *) dev_id;
1841 "%s(): NULL response queue pointer\n", __func__);
1846 reg = &ha->iobase->isp24;
1849 if (unlikely(pci_channel_offline(ha->pdev)))
1852 spin_lock_irqsave(&ha->hardware_lock, flags);
1853 vha = pci_get_drvdata(ha->pdev);
1854 for (iter = 50; iter--; ) {
1855 stat = RD_REG_DWORD(®->host_status);
1856 if (stat & HSRX_RISC_PAUSED) {
1857 if (unlikely(pci_channel_offline(ha->pdev)))
1860 hccr = RD_REG_DWORD(®->hccr);
1862 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
1863 "Dumping firmware!\n", hccr);
1865 qla2xxx_check_risc_status(vha);
1867 ha->isp_ops->fw_dump(vha, 1);
1868 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1870 } else if ((stat & HSRX_RISC_INT) == 0)
1873 switch (stat & 0xff) {
1878 qla24xx_mbx_completion(vha, MSW(stat));
1879 status |= MBX_INTERRUPT;
1884 mb[1] = RD_REG_WORD(®->mailbox1);
1885 mb[2] = RD_REG_WORD(®->mailbox2);
1886 mb[3] = RD_REG_WORD(®->mailbox3);
1887 qla2x00_async_event(vha, rsp, mb);
1891 qla24xx_process_response_queue(vha, rsp);
1894 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1896 vha->host_no, stat & 0xff));
1899 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
1900 RD_REG_DWORD_RELAXED(®->hccr);
1902 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1904 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
1905 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1906 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
1907 complete(&ha->mbx_intr_comp);
1914 qla24xx_msix_rsp_q(int irq, void *dev_id)
1916 struct qla_hw_data *ha;
1917 struct rsp_que *rsp;
1918 struct device_reg_24xx __iomem *reg;
1919 struct scsi_qla_host *vha;
1920 unsigned long flags;
1922 rsp = (struct rsp_que *) dev_id;
1925 "%s(): NULL response queue pointer\n", __func__);
1929 reg = &ha->iobase->isp24;
1931 spin_lock_irqsave(&ha->hardware_lock, flags);
1933 vha = pci_get_drvdata(ha->pdev);
1934 qla24xx_process_response_queue(vha, rsp);
1935 if (!ha->flags.disable_msix_handshake) {
1936 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
1937 RD_REG_DWORD_RELAXED(®->hccr);
1939 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1945 qla25xx_msix_rsp_q(int irq, void *dev_id)
1947 struct qla_hw_data *ha;
1948 struct rsp_que *rsp;
1949 struct device_reg_24xx __iomem *reg;
1950 unsigned long flags;
1952 rsp = (struct rsp_que *) dev_id;
1955 "%s(): NULL response queue pointer\n", __func__);
1960 /* Clear the interrupt, if enabled, for this response queue */
1961 if (rsp->options & ~BIT_6) {
1962 reg = &ha->iobase->isp24;
1963 spin_lock_irqsave(&ha->hardware_lock, flags);
1964 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
1965 RD_REG_DWORD_RELAXED(®->hccr);
1966 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1968 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
1974 qla24xx_msix_default(int irq, void *dev_id)
1976 scsi_qla_host_t *vha;
1977 struct qla_hw_data *ha;
1978 struct rsp_que *rsp;
1979 struct device_reg_24xx __iomem *reg;
1984 unsigned long flags;
1986 rsp = (struct rsp_que *) dev_id;
1989 "%s(): NULL response queue pointer\n", __func__));
1993 reg = &ha->iobase->isp24;
1996 spin_lock_irqsave(&ha->hardware_lock, flags);
1997 vha = pci_get_drvdata(ha->pdev);
1999 stat = RD_REG_DWORD(®->host_status);
2000 if (stat & HSRX_RISC_PAUSED) {
2001 if (unlikely(pci_channel_offline(ha->pdev)))
2004 hccr = RD_REG_DWORD(®->hccr);
2006 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2007 "Dumping firmware!\n", hccr);
2009 qla2xxx_check_risc_status(vha);
2011 ha->isp_ops->fw_dump(vha, 1);
2012 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2014 } else if ((stat & HSRX_RISC_INT) == 0)
2017 switch (stat & 0xff) {
2022 qla24xx_mbx_completion(vha, MSW(stat));
2023 status |= MBX_INTERRUPT;
2028 mb[1] = RD_REG_WORD(®->mailbox1);
2029 mb[2] = RD_REG_WORD(®->mailbox2);
2030 mb[3] = RD_REG_WORD(®->mailbox3);
2031 qla2x00_async_event(vha, rsp, mb);
2035 qla24xx_process_response_queue(vha, rsp);
2038 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2040 vha->host_no, stat & 0xff));
2043 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2045 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2047 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2048 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2049 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2050 complete(&ha->mbx_intr_comp);
2056 /* Interrupt handling helpers. */
2058 struct qla_init_msix_entry {
2060 irq_handler_t handler;
2063 static struct qla_init_msix_entry msix_entries[3] = {
2064 { "qla2xxx (default)", qla24xx_msix_default },
2065 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2066 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2070 qla24xx_disable_msix(struct qla_hw_data *ha)
2073 struct qla_msix_entry *qentry;
2075 for (i = 0; i < ha->msix_count; i++) {
2076 qentry = &ha->msix_entries[i];
2077 if (qentry->have_irq)
2078 free_irq(qentry->vector, qentry->rsp);
2080 pci_disable_msix(ha->pdev);
2081 kfree(ha->msix_entries);
2082 ha->msix_entries = NULL;
2083 ha->flags.msix_enabled = 0;
2087 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2089 #define MIN_MSIX_COUNT 2
2091 struct msix_entry *entries;
2092 struct qla_msix_entry *qentry;
2094 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2099 for (i = 0; i < ha->msix_count; i++)
2100 entries[i].entry = i;
2102 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2104 if (ret < MIN_MSIX_COUNT)
2107 qla_printk(KERN_WARNING, ha,
2108 "MSI-X: Failed to enable support -- %d/%d\n"
2109 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2110 ha->msix_count = ret;
2111 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2114 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2115 " support, giving up -- %d/%d\n",
2116 ha->msix_count, ret);
2119 ha->max_rsp_queues = ha->msix_count - 1;
2121 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2122 ha->msix_count, GFP_KERNEL);
2123 if (!ha->msix_entries) {
2127 ha->flags.msix_enabled = 1;
2129 for (i = 0; i < ha->msix_count; i++) {
2130 qentry = &ha->msix_entries[i];
2131 qentry->vector = entries[i].vector;
2132 qentry->entry = entries[i].entry;
2133 qentry->have_irq = 0;
2137 /* Enable MSI-X vectors for the base queue */
2138 for (i = 0; i < 2; i++) {
2139 qentry = &ha->msix_entries[i];
2140 ret = request_irq(qentry->vector, msix_entries[i].handler,
2141 0, msix_entries[i].name, rsp);
2143 qla_printk(KERN_WARNING, ha,
2144 "MSI-X: Unable to register handler -- %x/%d.\n",
2145 qentry->vector, ret);
2146 qla24xx_disable_msix(ha);
2150 qentry->have_irq = 1;
2155 /* Enable MSI-X vector for response queue update for queue 0 */
2156 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2165 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2168 device_reg_t __iomem *reg = ha->iobase;
2170 /* If possible, enable MSI-X. */
2171 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2172 !IS_QLA8432(ha) && !IS_QLA8001(ha))
2175 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2176 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2177 DEBUG2(qla_printk(KERN_WARNING, ha,
2178 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2179 ha->pdev->revision, ha->fw_attributes));
2184 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2185 (ha->pdev->subsystem_device == 0x7040 ||
2186 ha->pdev->subsystem_device == 0x7041 ||
2187 ha->pdev->subsystem_device == 0x1705)) {
2188 DEBUG2(qla_printk(KERN_WARNING, ha,
2189 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n",
2190 ha->pdev->subsystem_vendor,
2191 ha->pdev->subsystem_device));
2196 ret = qla24xx_enable_msix(ha, rsp);
2198 DEBUG2(qla_printk(KERN_INFO, ha,
2199 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2200 ha->fw_attributes));
2201 goto clear_risc_ints;
2203 qla_printk(KERN_WARNING, ha,
2204 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2207 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2211 ret = pci_enable_msi(ha->pdev);
2213 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2214 ha->flags.msi_enabled = 1;
2218 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2219 IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp);
2221 qla_printk(KERN_WARNING, ha,
2222 "Failed to reserve interrupt %d already in use.\n",
2226 ha->flags.inta_enabled = 1;
2230 * FIXME: Noted that 8014s were being dropped during NK testing.
2231 * Timing deltas during MSI-X/INTa transitions?
2235 spin_lock_irq(&ha->hardware_lock);
2236 if (IS_FWI2_CAPABLE(ha)) {
2237 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT);
2238 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT);
2240 WRT_REG_WORD(®->isp.semaphore, 0);
2241 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT);
2242 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT);
2244 spin_unlock_irq(&ha->hardware_lock);
2251 qla2x00_free_irqs(scsi_qla_host_t *vha)
2253 struct qla_hw_data *ha = vha->hw;
2254 struct rsp_que *rsp = ha->rsp_q_map[0];
2256 if (ha->flags.msix_enabled)
2257 qla24xx_disable_msix(ha);
2258 else if (ha->flags.inta_enabled) {
2259 free_irq(ha->pdev->irq, rsp);
2260 pci_disable_msi(ha->pdev);
2265 int qla25xx_request_irq(struct rsp_que *rsp)
2267 struct qla_hw_data *ha = rsp->hw;
2268 struct qla_init_msix_entry *intr = &msix_entries[2];
2269 struct qla_msix_entry *msix = rsp->msix;
2272 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2274 qla_printk(KERN_WARNING, ha,
2275 "MSI-X: Unable to register handler -- %x/%d.\n",