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 (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_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data)
817 fc_port_t *fcport = data;
818 struct scsi_qla_host *vha = fcport->vha;
819 struct qla_hw_data *ha = vha->hw;
820 struct req_que *req = NULL;
822 if (!ql2xqfulltracking)
828 if (req->max_q_depth <= sdev->queue_depth)
831 if (sdev->ordered_tags)
832 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
833 sdev->queue_depth + 1);
835 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG,
836 sdev->queue_depth + 1);
838 fcport->last_ramp_up = jiffies;
840 DEBUG2(qla_printk(KERN_INFO, ha,
841 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
842 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
847 qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data)
849 fc_port_t *fcport = data;
851 if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1))
854 DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
855 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
856 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
861 qla2x00_ramp_up_queue_depth(scsi_qla_host_t *vha, struct req_que *req,
865 struct scsi_device *sdev;
867 if (!ql2xqfulltracking)
870 sdev = sp->cmd->device;
871 if (sdev->queue_depth >= req->max_q_depth)
875 if (time_before(jiffies,
876 fcport->last_ramp_up + ql2xqfullrampup * HZ))
878 if (time_before(jiffies,
879 fcport->last_queue_full + ql2xqfullrampup * HZ))
882 starget_for_each_device(sdev->sdev_target, fcport,
883 qla2x00_adjust_sdev_qdepth_up);
887 * qla2x00_process_completed_request() - Process a Fast Post response.
888 * @ha: SCSI driver HA context
892 qla2x00_process_completed_request(struct scsi_qla_host *vha,
893 struct req_que *req, uint32_t index)
896 struct qla_hw_data *ha = vha->hw;
898 /* Validate handle. */
899 if (index >= MAX_OUTSTANDING_COMMANDS) {
900 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
901 vha->host_no, index));
902 qla_printk(KERN_WARNING, ha,
903 "Invalid SCSI completion handle %d.\n", index);
905 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
909 sp = req->outstanding_cmds[index];
911 /* Free outstanding command slot. */
912 req->outstanding_cmds[index] = NULL;
914 /* Save ISP completion status */
915 sp->cmd->result = DID_OK << 16;
917 qla2x00_ramp_up_queue_depth(vha, req, sp);
918 qla2x00_sp_compl(ha, sp);
920 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
921 " handle(%d)\n", vha->host_no, req->id, index));
922 qla_printk(KERN_WARNING, ha,
923 "Invalid ISP SCSI completion handle\n");
925 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
930 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
931 struct req_que *req, void *iocb)
933 struct qla_hw_data *ha = vha->hw;
934 sts_entry_t *pkt = iocb;
938 index = LSW(pkt->handle);
939 if (index >= MAX_OUTSTANDING_COMMANDS) {
940 qla_printk(KERN_WARNING, ha,
941 "%s: Invalid completion handle (%x).\n", func, index);
942 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
945 sp = req->outstanding_cmds[index];
947 qla_printk(KERN_WARNING, ha,
948 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
952 if (sp->handle != index) {
953 qla_printk(KERN_WARNING, ha,
954 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
958 req->outstanding_cmds[index] = NULL;
964 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
965 struct mbx_entry *mbx)
967 const char func[] = "MBX-IOCB";
969 struct qla_hw_data *ha = vha->hw;
972 struct srb_logio *lio;
975 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
981 switch (lio->ctx.type) {
989 qla_printk(KERN_WARNING, ha,
990 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
995 del_timer(&lio->ctx.timer);
998 data[0] = data[1] = 0;
999 if (mbx->entry_status) {
1000 DEBUG2(printk(KERN_WARNING
1001 "scsi(%ld:%x): Async-%s error entry - entry-status=%x "
1002 "status=%x state-flag=%x status-flags=%x.\n",
1003 fcport->vha->host_no, sp->handle, type,
1004 mbx->entry_status, le16_to_cpu(mbx->status),
1005 le16_to_cpu(mbx->state_flags),
1006 le16_to_cpu(mbx->status_flags)));
1007 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
1009 data[0] = MBS_COMMAND_ERROR;
1010 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1011 QLA_LOGIO_LOGIN_RETRIED: 0;
1012 goto done_post_logio_done_work;
1015 if (!mbx->status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1016 DEBUG2(printk(KERN_DEBUG
1017 "scsi(%ld:%x): Async-%s complete - mbx1=%x.\n",
1018 fcport->vha->host_no, sp->handle, type,
1019 le16_to_cpu(mbx->mb1)));
1021 data[0] = MBS_COMMAND_COMPLETE;
1022 if (lio->ctx.type == SRB_LOGIN_CMD && le16_to_cpu(mbx->mb1) & BIT_1)
1023 fcport->flags |= FCF_FCP2_DEVICE;
1025 goto done_post_logio_done_work;
1028 data[0] = le16_to_cpu(mbx->mb0);
1030 case MBS_PORT_ID_USED:
1031 data[1] = le16_to_cpu(mbx->mb1);
1033 case MBS_LOOP_ID_USED:
1036 data[0] = MBS_COMMAND_ERROR;
1037 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1038 QLA_LOGIO_LOGIN_RETRIED: 0;
1042 DEBUG2(printk(KERN_WARNING
1043 "scsi(%ld:%x): Async-%s failed - status=%x mb0=%x mb1=%x mb2=%x "
1045 fcport->vha->host_no, sp->handle, type, le16_to_cpu(mbx->status),
1046 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1047 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1048 le16_to_cpu(mbx->mb7)));
1050 done_post_logio_done_work:
1051 lio->ctx.type == SRB_LOGIN_CMD ?
1052 qla2x00_post_async_login_done_work(fcport->vha, fcport, data):
1053 qla2x00_post_async_logout_done_work(fcport->vha, fcport, data);
1059 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1060 struct logio_entry_24xx *logio)
1062 const char func[] = "LOGIO-IOCB";
1064 struct qla_hw_data *ha = vha->hw;
1067 struct srb_logio *lio;
1071 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1077 switch (lio->ctx.type) {
1081 case SRB_LOGOUT_CMD:
1085 qla_printk(KERN_WARNING, ha,
1086 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1091 del_timer(&lio->ctx.timer);
1092 fcport = sp->fcport;
1094 data[0] = data[1] = 0;
1095 if (logio->entry_status) {
1096 DEBUG2(printk(KERN_WARNING
1097 "scsi(%ld:%x): Async-%s error entry - entry-status=%x.\n",
1098 fcport->vha->host_no, sp->handle, type,
1099 logio->entry_status));
1100 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1102 data[0] = MBS_COMMAND_ERROR;
1103 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1104 QLA_LOGIO_LOGIN_RETRIED: 0;
1105 goto done_post_logio_done_work;
1108 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1109 DEBUG2(printk(KERN_DEBUG
1110 "scsi(%ld:%x): Async-%s complete - iop0=%x.\n",
1111 fcport->vha->host_no, sp->handle, type,
1112 le32_to_cpu(logio->io_parameter[0])));
1114 data[0] = MBS_COMMAND_COMPLETE;
1115 if (lio->ctx.type == SRB_LOGOUT_CMD)
1116 goto done_post_logio_done_work;
1118 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1119 if (iop[0] & BIT_4) {
1120 fcport->port_type = FCT_TARGET;
1122 fcport->flags |= FCF_FCP2_DEVICE;
1125 fcport->port_type = FCT_INITIATOR;
1126 if (logio->io_parameter[7] || logio->io_parameter[8])
1127 fcport->supported_classes |= FC_COS_CLASS2;
1128 if (logio->io_parameter[9] || logio->io_parameter[10])
1129 fcport->supported_classes |= FC_COS_CLASS3;
1131 goto done_post_logio_done_work;
1134 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1135 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1137 case LSC_SCODE_PORTID_USED:
1138 data[0] = MBS_PORT_ID_USED;
1139 data[1] = LSW(iop[1]);
1141 case LSC_SCODE_NPORT_USED:
1142 data[0] = MBS_LOOP_ID_USED;
1144 case LSC_SCODE_CMD_FAILED:
1145 if ((iop[1] & 0xff) == 0x05) {
1146 data[0] = MBS_NOT_LOGGED_IN;
1151 data[0] = MBS_COMMAND_ERROR;
1152 data[1] = lio->flags & SRB_LOGIN_RETRIED ?
1153 QLA_LOGIO_LOGIN_RETRIED: 0;
1157 DEBUG2(printk(KERN_WARNING
1158 "scsi(%ld:%x): Async-%s failed - comp=%x iop0=%x iop1=%x.\n",
1159 fcport->vha->host_no, sp->handle, type,
1160 le16_to_cpu(logio->comp_status),
1161 le32_to_cpu(logio->io_parameter[0]),
1162 le32_to_cpu(logio->io_parameter[1])));
1164 done_post_logio_done_work:
1165 lio->ctx.type == SRB_LOGIN_CMD ?
1166 qla2x00_post_async_login_done_work(fcport->vha, fcport, data):
1167 qla2x00_post_async_logout_done_work(fcport->vha, fcport, data);
1173 * qla2x00_process_response_queue() - Process response queue entries.
1174 * @ha: SCSI driver HA context
1177 qla2x00_process_response_queue(struct rsp_que *rsp)
1179 struct scsi_qla_host *vha;
1180 struct qla_hw_data *ha = rsp->hw;
1181 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1183 uint16_t handle_cnt;
1186 vha = pci_get_drvdata(ha->pdev);
1188 if (!vha->flags.online)
1191 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1192 pkt = (sts_entry_t *)rsp->ring_ptr;
1195 if (rsp->ring_index == rsp->length) {
1196 rsp->ring_index = 0;
1197 rsp->ring_ptr = rsp->ring;
1202 if (pkt->entry_status != 0) {
1203 DEBUG3(printk(KERN_INFO
1204 "scsi(%ld): Process error entry.\n", vha->host_no));
1206 qla2x00_error_entry(vha, rsp, pkt);
1207 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1212 switch (pkt->entry_type) {
1214 qla2x00_status_entry(vha, rsp, pkt);
1216 case STATUS_TYPE_21:
1217 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1218 for (cnt = 0; cnt < handle_cnt; cnt++) {
1219 qla2x00_process_completed_request(vha, rsp->req,
1220 ((sts21_entry_t *)pkt)->handle[cnt]);
1223 case STATUS_TYPE_22:
1224 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1225 for (cnt = 0; cnt < handle_cnt; cnt++) {
1226 qla2x00_process_completed_request(vha, rsp->req,
1227 ((sts22_entry_t *)pkt)->handle[cnt]);
1230 case STATUS_CONT_TYPE:
1231 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1234 qla2x00_mbx_iocb_entry(vha, rsp->req,
1235 (struct mbx_entry *)pkt);
1237 /* Type Not Supported. */
1238 DEBUG4(printk(KERN_WARNING
1239 "scsi(%ld): Received unknown response pkt type %x "
1240 "entry status=%x.\n",
1241 vha->host_no, pkt->entry_type, pkt->entry_status));
1244 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1248 /* Adjust ring index */
1249 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1253 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len,
1254 struct rsp_que *rsp)
1256 struct scsi_cmnd *cp = sp->cmd;
1258 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1259 sense_len = SCSI_SENSE_BUFFERSIZE;
1261 sp->request_sense_length = sense_len;
1262 sp->request_sense_ptr = cp->sense_buffer;
1263 if (sp->request_sense_length > 32)
1266 memcpy(cp->sense_buffer, sense_data, sense_len);
1268 sp->request_sense_ptr += sense_len;
1269 sp->request_sense_length -= sense_len;
1270 if (sp->request_sense_length != 0)
1271 rsp->status_srb = sp;
1273 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1274 "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no,
1275 cp->device->channel, cp->device->id, cp->device->lun, cp,
1276 cp->serial_number));
1278 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1282 * qla2x00_status_entry() - Process a Status IOCB entry.
1283 * @ha: SCSI driver HA context
1284 * @pkt: Entry pointer
1287 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1291 struct scsi_cmnd *cp;
1293 struct sts_entry_24xx *sts24;
1294 uint16_t comp_status;
1295 uint16_t scsi_status;
1296 uint8_t lscsi_status;
1298 uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len;
1299 uint8_t *rsp_info, *sense_data;
1300 struct qla_hw_data *ha = vha->hw;
1303 struct req_que *req;
1305 sts = (sts_entry_t *) pkt;
1306 sts24 = (struct sts_entry_24xx *) pkt;
1307 if (IS_FWI2_CAPABLE(ha)) {
1308 comp_status = le16_to_cpu(sts24->comp_status);
1309 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1311 comp_status = le16_to_cpu(sts->comp_status);
1312 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1314 handle = (uint32_t) LSW(sts->handle);
1315 que = MSW(sts->handle);
1316 req = ha->req_q_map[que];
1317 /* Fast path completion. */
1318 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1319 qla2x00_process_completed_request(vha, req, handle);
1324 /* Validate handle. */
1325 if (handle < MAX_OUTSTANDING_COMMANDS) {
1326 sp = req->outstanding_cmds[handle];
1327 req->outstanding_cmds[handle] = NULL;
1332 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
1334 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
1336 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1337 qla2xxx_wake_dpc(vha);
1342 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
1343 "pkt->handle=%d sp=%p.\n", vha->host_no, handle, sp));
1344 qla_printk(KERN_WARNING, ha,
1345 "Command is NULL: already returned to OS (sp=%p)\n", sp);
1350 lscsi_status = scsi_status & STATUS_MASK;
1352 fcport = sp->fcport;
1354 sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
1355 if (IS_FWI2_CAPABLE(ha)) {
1356 if (scsi_status & SS_SENSE_LEN_VALID)
1357 sense_len = le32_to_cpu(sts24->sense_len);
1358 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1359 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1360 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1361 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1362 if (comp_status == CS_DATA_UNDERRUN)
1363 fw_resid_len = le32_to_cpu(sts24->residual_len);
1364 rsp_info = sts24->data;
1365 sense_data = sts24->data;
1366 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1368 if (scsi_status & SS_SENSE_LEN_VALID)
1369 sense_len = le16_to_cpu(sts->req_sense_length);
1370 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1371 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1372 resid_len = le32_to_cpu(sts->residual_length);
1373 rsp_info = sts->rsp_info;
1374 sense_data = sts->req_sense_data;
1377 /* Check for any FCP transport errors. */
1378 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1379 /* Sense data lies beyond any FCP RESPONSE data. */
1380 if (IS_FWI2_CAPABLE(ha))
1381 sense_data += rsp_info_len;
1382 if (rsp_info_len > 3 && rsp_info[3]) {
1383 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
1384 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
1385 "retrying command\n", vha->host_no,
1386 cp->device->channel, cp->device->id,
1387 cp->device->lun, rsp_info_len, rsp_info[0],
1388 rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
1389 rsp_info[5], rsp_info[6], rsp_info[7]));
1391 cp->result = DID_BUS_BUSY << 16;
1392 qla2x00_sp_compl(ha, sp);
1397 /* Check for overrun. */
1398 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1399 scsi_status & SS_RESIDUAL_OVER)
1400 comp_status = CS_DATA_OVERRUN;
1403 * Based on Host and scsi status generate status code for Linux
1405 switch (comp_status) {
1408 if (scsi_status == 0) {
1409 cp->result = DID_OK << 16;
1412 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1414 scsi_set_resid(cp, resid);
1416 if (!lscsi_status &&
1417 ((unsigned)(scsi_bufflen(cp) - resid) <
1419 qla_printk(KERN_INFO, ha,
1420 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1421 "detected (%x of %x bytes)...returning "
1422 "error status.\n", vha->host_no,
1423 cp->device->channel, cp->device->id,
1424 cp->device->lun, resid,
1427 cp->result = DID_ERROR << 16;
1431 cp->result = DID_OK << 16 | lscsi_status;
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,
1439 /* Adjust queue depth for all luns on the port. */
1440 if (!ql2xqfulltracking)
1442 fcport->last_queue_full = jiffies;
1443 starget_for_each_device(cp->device->sdev_target,
1444 fcport, qla2x00_adjust_sdev_qdepth_down);
1447 if (lscsi_status != SS_CHECK_CONDITION)
1450 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1451 if (!(scsi_status & SS_SENSE_LEN_VALID))
1454 qla2x00_handle_sense(sp, sense_data, sense_len, rsp);
1457 case CS_DATA_UNDERRUN:
1458 DEBUG2(printk(KERN_INFO
1459 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x. "
1460 "resid=0x%x fw_resid=0x%x cdb=0x%x os_underflow=0x%x\n",
1461 vha->host_no, cp->device->id, cp->device->lun, comp_status,
1462 scsi_status, resid_len, fw_resid_len, cp->cmnd[0],
1465 /* Use F/W calculated residual length. */
1466 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1467 scsi_set_resid(cp, resid);
1468 if (scsi_status & SS_RESIDUAL_UNDER) {
1469 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1471 "scsi(%ld:%d:%d:%d) Dropped frame(s) "
1472 "detected (%x of %x bytes)...residual "
1473 "length mismatch...retrying command.\n",
1474 vha->host_no, cp->device->channel,
1475 cp->device->id, cp->device->lun, resid,
1478 cp->result = DID_ERROR << 16 | lscsi_status;
1482 if (!lscsi_status &&
1483 ((unsigned)(scsi_bufflen(cp) - resid) <
1485 qla_printk(KERN_INFO, ha,
1486 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1487 "detected (%x of %x bytes)...returning "
1488 "error status.\n", vha->host_no,
1489 cp->device->channel, cp->device->id,
1490 cp->device->lun, resid, scsi_bufflen(cp));
1492 cp->result = DID_ERROR << 16;
1495 } else if (!lscsi_status) {
1497 "scsi(%ld:%d:%d:%d) Dropped frame(s) detected "
1498 "(%x of %x bytes)...firmware reported underrun..."
1499 "retrying command.\n", vha->host_no,
1500 cp->device->channel, cp->device->id,
1501 cp->device->lun, resid, scsi_bufflen(cp)));
1503 cp->result = DID_ERROR << 16;
1507 cp->result = DID_OK << 16 | lscsi_status;
1510 * Check to see if SCSI Status is non zero. If so report SCSI
1513 if (lscsi_status != 0) {
1514 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1515 DEBUG2(printk(KERN_INFO
1516 "scsi(%ld): QUEUE FULL status detected "
1517 "0x%x-0x%x.\n", vha->host_no, comp_status,
1521 * Adjust queue depth for all luns on the
1524 if (!ql2xqfulltracking)
1526 fcport->last_queue_full = jiffies;
1527 starget_for_each_device(
1528 cp->device->sdev_target, fcport,
1529 qla2x00_adjust_sdev_qdepth_down);
1532 if (lscsi_status != SS_CHECK_CONDITION)
1535 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1536 if (!(scsi_status & SS_SENSE_LEN_VALID))
1539 qla2x00_handle_sense(sp, sense_data, sense_len, rsp);
1543 case CS_DATA_OVERRUN:
1544 DEBUG2(printk(KERN_INFO
1545 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1546 vha->host_no, cp->device->id, cp->device->lun, comp_status,
1548 DEBUG2(printk(KERN_INFO
1549 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1550 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1551 cp->cmnd[4], cp->cmnd[5]));
1552 DEBUG2(printk(KERN_INFO
1553 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1555 cp->serial_number, scsi_bufflen(cp), resid_len));
1557 cp->result = DID_ERROR << 16;
1560 case CS_PORT_LOGGED_OUT:
1561 case CS_PORT_CONFIG_CHG:
1564 case CS_PORT_UNAVAILABLE:
1566 * If the port is in Target Down state, return all IOs for this
1567 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1570 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1571 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1572 vha->host_no, cp->device->id, cp->device->lun,
1573 cp->serial_number, comp_status,
1574 atomic_read(&fcport->state)));
1577 * We are going to have the fc class block the rport
1578 * while we try to recover so instruct the mid layer
1579 * to requeue until the class decides how to handle this.
1581 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1582 if (atomic_read(&fcport->state) == FCS_ONLINE)
1583 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1587 DEBUG2(printk(KERN_INFO
1588 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1589 vha->host_no, comp_status, scsi_status));
1591 cp->result = DID_RESET << 16;
1596 * hv2.19.12 - DID_ABORT does not retry the request if we
1597 * aborted this request then abort otherwise it must be a
1600 DEBUG2(printk(KERN_INFO
1601 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1602 vha->host_no, comp_status, scsi_status));
1604 cp->result = DID_RESET << 16;
1609 * We are going to have the fc class block the rport
1610 * while we try to recover so instruct the mid layer
1611 * to requeue until the class decides how to handle this.
1613 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1615 if (IS_FWI2_CAPABLE(ha)) {
1616 DEBUG2(printk(KERN_INFO
1617 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1618 "0x%x-0x%x\n", vha->host_no, cp->device->channel,
1619 cp->device->id, cp->device->lun, comp_status,
1623 DEBUG2(printk(KERN_INFO
1624 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1625 "sflags=%x.\n", vha->host_no, cp->device->channel,
1626 cp->device->id, cp->device->lun, comp_status, scsi_status,
1627 le16_to_cpu(sts->status_flags)));
1629 /* Check to see if logout occurred. */
1630 if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
1631 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1635 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1636 "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status));
1637 qla_printk(KERN_INFO, ha,
1638 "Unknown status detected 0x%x-0x%x.\n",
1639 comp_status, scsi_status);
1641 cp->result = DID_ERROR << 16;
1645 /* Place command on done queue. */
1646 if (rsp->status_srb == NULL)
1647 qla2x00_sp_compl(ha, sp);
1651 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1652 * @ha: SCSI driver HA context
1653 * @pkt: Entry pointer
1655 * Extended sense data.
1658 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1660 uint8_t sense_sz = 0;
1661 struct qla_hw_data *ha = rsp->hw;
1662 srb_t *sp = rsp->status_srb;
1663 struct scsi_cmnd *cp;
1665 if (sp != NULL && sp->request_sense_length != 0) {
1668 DEBUG2(printk("%s(): Cmd already returned back to OS "
1669 "sp=%p.\n", __func__, sp));
1670 qla_printk(KERN_INFO, ha,
1671 "cmd is NULL: already returned to OS (sp=%p)\n",
1674 rsp->status_srb = NULL;
1678 if (sp->request_sense_length > sizeof(pkt->data)) {
1679 sense_sz = sizeof(pkt->data);
1681 sense_sz = sp->request_sense_length;
1684 /* Move sense data. */
1685 if (IS_FWI2_CAPABLE(ha))
1686 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1687 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1688 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1690 sp->request_sense_ptr += sense_sz;
1691 sp->request_sense_length -= sense_sz;
1693 /* Place command on done queue. */
1694 if (sp->request_sense_length == 0) {
1695 rsp->status_srb = NULL;
1696 qla2x00_sp_compl(ha, sp);
1702 * qla2x00_error_entry() - Process an error entry.
1703 * @ha: SCSI driver HA context
1704 * @pkt: Entry pointer
1707 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1710 struct qla_hw_data *ha = vha->hw;
1711 uint32_t handle = LSW(pkt->handle);
1712 uint16_t que = MSW(pkt->handle);
1713 struct req_que *req = ha->req_q_map[que];
1714 #if defined(QL_DEBUG_LEVEL_2)
1715 if (pkt->entry_status & RF_INV_E_ORDER)
1716 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1717 else if (pkt->entry_status & RF_INV_E_COUNT)
1718 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1719 else if (pkt->entry_status & RF_INV_E_PARAM)
1720 qla_printk(KERN_ERR, ha,
1721 "%s: Invalid Entry Parameter\n", __func__);
1722 else if (pkt->entry_status & RF_INV_E_TYPE)
1723 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1724 else if (pkt->entry_status & RF_BUSY)
1725 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1727 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1730 /* Validate handle. */
1731 if (handle < MAX_OUTSTANDING_COMMANDS)
1732 sp = req->outstanding_cmds[handle];
1737 /* Free outstanding command slot. */
1738 req->outstanding_cmds[handle] = NULL;
1740 /* Bad payload or header */
1741 if (pkt->entry_status &
1742 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1743 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1744 sp->cmd->result = DID_ERROR << 16;
1745 } else if (pkt->entry_status & RF_BUSY) {
1746 sp->cmd->result = DID_BUS_BUSY << 16;
1748 sp->cmd->result = DID_ERROR << 16;
1750 qla2x00_sp_compl(ha, sp);
1752 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1753 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1754 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1756 qla_printk(KERN_WARNING, ha,
1757 "Error entry - invalid handle\n");
1759 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1760 qla2xxx_wake_dpc(vha);
1765 * qla24xx_mbx_completion() - Process mailbox command completions.
1766 * @ha: SCSI driver HA context
1767 * @mb0: Mailbox0 register
1770 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1773 uint16_t __iomem *wptr;
1774 struct qla_hw_data *ha = vha->hw;
1775 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1777 /* Load return mailbox registers. */
1778 ha->flags.mbox_int = 1;
1779 ha->mailbox_out[0] = mb0;
1780 wptr = (uint16_t __iomem *)®->mailbox1;
1782 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1783 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1788 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1789 __func__, vha->host_no, ha->mcp->mb[0]));
1791 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1792 __func__, vha->host_no));
1797 * qla24xx_process_response_queue() - Process response queue entries.
1798 * @ha: SCSI driver HA context
1800 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1801 struct rsp_que *rsp)
1803 struct sts_entry_24xx *pkt;
1805 if (!vha->flags.online)
1808 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1809 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1812 if (rsp->ring_index == rsp->length) {
1813 rsp->ring_index = 0;
1814 rsp->ring_ptr = rsp->ring;
1819 if (pkt->entry_status != 0) {
1820 DEBUG3(printk(KERN_INFO
1821 "scsi(%ld): Process error entry.\n", vha->host_no));
1823 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1824 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1829 switch (pkt->entry_type) {
1831 qla2x00_status_entry(vha, rsp, pkt);
1833 case STATUS_CONT_TYPE:
1834 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1836 case VP_RPT_ID_IOCB_TYPE:
1837 qla24xx_report_id_acquisition(vha,
1838 (struct vp_rpt_id_entry_24xx *)pkt);
1840 case LOGINOUT_PORT_IOCB_TYPE:
1841 qla24xx_logio_entry(vha, rsp->req,
1842 (struct logio_entry_24xx *)pkt);
1845 /* Type Not Supported. */
1846 DEBUG4(printk(KERN_WARNING
1847 "scsi(%ld): Received unknown response pkt type %x "
1848 "entry status=%x.\n",
1849 vha->host_no, pkt->entry_type, pkt->entry_status));
1852 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1856 /* Adjust ring index */
1857 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
1861 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
1865 struct qla_hw_data *ha = vha->hw;
1866 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1868 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
1872 WRT_REG_DWORD(®->iobase_addr, 0x7C00);
1873 RD_REG_DWORD(®->iobase_addr);
1874 WRT_REG_DWORD(®->iobase_window, 0x0001);
1875 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
1876 rval == QLA_SUCCESS; cnt--) {
1878 WRT_REG_DWORD(®->iobase_window, 0x0001);
1881 rval = QLA_FUNCTION_TIMEOUT;
1883 if (rval == QLA_SUCCESS)
1886 WRT_REG_DWORD(®->iobase_window, 0x0003);
1887 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
1888 rval == QLA_SUCCESS; cnt--) {
1890 WRT_REG_DWORD(®->iobase_window, 0x0003);
1893 rval = QLA_FUNCTION_TIMEOUT;
1895 if (rval != QLA_SUCCESS)
1899 if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
1900 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
1903 WRT_REG_DWORD(®->iobase_window, 0x0000);
1904 RD_REG_DWORD(®->iobase_window);
1908 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1910 * @dev_id: SCSI driver HA context
1912 * Called by system whenever the host adapter generates an interrupt.
1914 * Returns handled flag.
1917 qla24xx_intr_handler(int irq, void *dev_id)
1919 scsi_qla_host_t *vha;
1920 struct qla_hw_data *ha;
1921 struct device_reg_24xx __iomem *reg;
1927 struct rsp_que *rsp;
1928 unsigned long flags;
1930 rsp = (struct rsp_que *) dev_id;
1933 "%s(): NULL response queue pointer\n", __func__);
1938 reg = &ha->iobase->isp24;
1941 spin_lock_irqsave(&ha->hardware_lock, flags);
1942 vha = pci_get_drvdata(ha->pdev);
1943 for (iter = 50; iter--; ) {
1944 stat = RD_REG_DWORD(®->host_status);
1945 if (stat & HSRX_RISC_PAUSED) {
1946 if (pci_channel_offline(ha->pdev))
1949 hccr = RD_REG_DWORD(®->hccr);
1951 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
1952 "Dumping firmware!\n", hccr);
1954 qla2xxx_check_risc_status(vha);
1956 ha->isp_ops->fw_dump(vha, 1);
1957 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1959 } else if ((stat & HSRX_RISC_INT) == 0)
1962 switch (stat & 0xff) {
1967 qla24xx_mbx_completion(vha, MSW(stat));
1968 status |= MBX_INTERRUPT;
1973 mb[1] = RD_REG_WORD(®->mailbox1);
1974 mb[2] = RD_REG_WORD(®->mailbox2);
1975 mb[3] = RD_REG_WORD(®->mailbox3);
1976 qla2x00_async_event(vha, rsp, mb);
1980 qla24xx_process_response_queue(vha, rsp);
1983 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1985 vha->host_no, stat & 0xff));
1988 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
1989 RD_REG_DWORD_RELAXED(®->hccr);
1991 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1993 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
1994 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1995 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
1996 complete(&ha->mbx_intr_comp);
2003 qla24xx_msix_rsp_q(int irq, void *dev_id)
2005 struct qla_hw_data *ha;
2006 struct rsp_que *rsp;
2007 struct device_reg_24xx __iomem *reg;
2008 struct scsi_qla_host *vha;
2010 rsp = (struct rsp_que *) dev_id;
2013 "%s(): NULL response queue pointer\n", __func__);
2017 reg = &ha->iobase->isp24;
2019 spin_lock_irq(&ha->hardware_lock);
2021 vha = qla25xx_get_host(rsp);
2022 qla24xx_process_response_queue(vha, rsp);
2023 if (!ha->mqenable) {
2024 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2025 RD_REG_DWORD_RELAXED(®->hccr);
2027 spin_unlock_irq(&ha->hardware_lock);
2033 qla25xx_msix_rsp_q(int irq, void *dev_id)
2035 struct qla_hw_data *ha;
2036 struct rsp_que *rsp;
2038 rsp = (struct rsp_que *) dev_id;
2041 "%s(): NULL response queue pointer\n", __func__);
2046 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2052 qla24xx_msix_default(int irq, void *dev_id)
2054 scsi_qla_host_t *vha;
2055 struct qla_hw_data *ha;
2056 struct rsp_que *rsp;
2057 struct device_reg_24xx __iomem *reg;
2063 rsp = (struct rsp_que *) dev_id;
2066 "%s(): NULL response queue pointer\n", __func__));
2070 reg = &ha->iobase->isp24;
2073 spin_lock_irq(&ha->hardware_lock);
2074 vha = pci_get_drvdata(ha->pdev);
2076 stat = RD_REG_DWORD(®->host_status);
2077 if (stat & HSRX_RISC_PAUSED) {
2078 if (pci_channel_offline(ha->pdev))
2081 hccr = RD_REG_DWORD(®->hccr);
2083 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2084 "Dumping firmware!\n", hccr);
2086 qla2xxx_check_risc_status(vha);
2088 ha->isp_ops->fw_dump(vha, 1);
2089 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2091 } else if ((stat & HSRX_RISC_INT) == 0)
2094 switch (stat & 0xff) {
2099 qla24xx_mbx_completion(vha, MSW(stat));
2100 status |= MBX_INTERRUPT;
2105 mb[1] = RD_REG_WORD(®->mailbox1);
2106 mb[2] = RD_REG_WORD(®->mailbox2);
2107 mb[3] = RD_REG_WORD(®->mailbox3);
2108 qla2x00_async_event(vha, rsp, mb);
2112 qla24xx_process_response_queue(vha, rsp);
2115 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2117 vha->host_no, stat & 0xff));
2120 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2122 spin_unlock_irq(&ha->hardware_lock);
2124 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2125 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2126 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2127 complete(&ha->mbx_intr_comp);
2133 /* Interrupt handling helpers. */
2135 struct qla_init_msix_entry {
2137 irq_handler_t handler;
2140 static struct qla_init_msix_entry msix_entries[3] = {
2141 { "qla2xxx (default)", qla24xx_msix_default },
2142 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2143 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2147 qla24xx_disable_msix(struct qla_hw_data *ha)
2150 struct qla_msix_entry *qentry;
2152 for (i = 0; i < ha->msix_count; i++) {
2153 qentry = &ha->msix_entries[i];
2154 if (qentry->have_irq)
2155 free_irq(qentry->vector, qentry->rsp);
2157 pci_disable_msix(ha->pdev);
2158 kfree(ha->msix_entries);
2159 ha->msix_entries = NULL;
2160 ha->flags.msix_enabled = 0;
2164 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2166 #define MIN_MSIX_COUNT 2
2168 struct msix_entry *entries;
2169 struct qla_msix_entry *qentry;
2171 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2176 for (i = 0; i < ha->msix_count; i++)
2177 entries[i].entry = i;
2179 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2181 if (ret < MIN_MSIX_COUNT)
2184 qla_printk(KERN_WARNING, ha,
2185 "MSI-X: Failed to enable support -- %d/%d\n"
2186 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2187 ha->msix_count = ret;
2188 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2191 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2192 " support, giving up -- %d/%d\n",
2193 ha->msix_count, ret);
2196 ha->max_rsp_queues = ha->msix_count - 1;
2198 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2199 ha->msix_count, GFP_KERNEL);
2200 if (!ha->msix_entries) {
2204 ha->flags.msix_enabled = 1;
2206 for (i = 0; i < ha->msix_count; i++) {
2207 qentry = &ha->msix_entries[i];
2208 qentry->vector = entries[i].vector;
2209 qentry->entry = entries[i].entry;
2210 qentry->have_irq = 0;
2214 /* Enable MSI-X vectors for the base queue */
2215 for (i = 0; i < 2; i++) {
2216 qentry = &ha->msix_entries[i];
2217 ret = request_irq(qentry->vector, msix_entries[i].handler,
2218 0, msix_entries[i].name, rsp);
2220 qla_printk(KERN_WARNING, ha,
2221 "MSI-X: Unable to register handler -- %x/%d.\n",
2222 qentry->vector, ret);
2223 qla24xx_disable_msix(ha);
2227 qentry->have_irq = 1;
2232 /* Enable MSI-X vector for response queue update for queue 0 */
2233 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2242 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2245 device_reg_t __iomem *reg = ha->iobase;
2247 /* If possible, enable MSI-X. */
2248 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2249 !IS_QLA8432(ha) && !IS_QLA8001(ha))
2252 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2253 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2254 DEBUG2(qla_printk(KERN_WARNING, ha,
2255 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2256 ha->pdev->revision, ha->fw_attributes));
2261 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2262 (ha->pdev->subsystem_device == 0x7040 ||
2263 ha->pdev->subsystem_device == 0x7041 ||
2264 ha->pdev->subsystem_device == 0x1705)) {
2265 DEBUG2(qla_printk(KERN_WARNING, ha,
2266 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n",
2267 ha->pdev->subsystem_vendor,
2268 ha->pdev->subsystem_device));
2273 ret = qla24xx_enable_msix(ha, rsp);
2275 DEBUG2(qla_printk(KERN_INFO, ha,
2276 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2277 ha->fw_attributes));
2278 goto clear_risc_ints;
2280 qla_printk(KERN_WARNING, ha,
2281 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2284 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2288 ret = pci_enable_msi(ha->pdev);
2290 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2291 ha->flags.msi_enabled = 1;
2295 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2296 IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp);
2298 qla_printk(KERN_WARNING, ha,
2299 "Failed to reserve interrupt %d already in use.\n",
2303 ha->flags.inta_enabled = 1;
2307 * FIXME: Noted that 8014s were being dropped during NK testing.
2308 * Timing deltas during MSI-X/INTa transitions?
2312 spin_lock_irq(&ha->hardware_lock);
2313 if (IS_FWI2_CAPABLE(ha)) {
2314 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT);
2315 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT);
2317 WRT_REG_WORD(®->isp.semaphore, 0);
2318 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT);
2319 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT);
2321 spin_unlock_irq(&ha->hardware_lock);
2328 qla2x00_free_irqs(scsi_qla_host_t *vha)
2330 struct qla_hw_data *ha = vha->hw;
2331 struct rsp_que *rsp = ha->rsp_q_map[0];
2333 if (ha->flags.msix_enabled)
2334 qla24xx_disable_msix(ha);
2335 else if (ha->flags.inta_enabled) {
2336 free_irq(ha->pdev->irq, rsp);
2337 pci_disable_msi(ha->pdev);
2342 int qla25xx_request_irq(struct rsp_que *rsp)
2344 struct qla_hw_data *ha = rsp->hw;
2345 struct qla_init_msix_entry *intr = &msix_entries[2];
2346 struct qla_msix_entry *msix = rsp->msix;
2349 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2351 qla_printk(KERN_WARNING, ha,
2352 "MSI-X: Unable to register handler -- %x/%d.\n",
2361 struct scsi_qla_host *
2362 qla25xx_get_host(struct rsp_que *rsp)
2365 struct qla_hw_data *ha = rsp->hw;
2366 struct scsi_qla_host *vha = NULL;
2367 struct sts_entry_24xx *pkt;
2368 struct req_que *req;
2372 pkt = (struct sts_entry_24xx *) rsp->ring_ptr;
2373 que = MSW(pkt->handle);
2374 handle = (uint32_t) LSW(pkt->handle);
2375 req = ha->req_q_map[que];
2376 if (handle < MAX_OUTSTANDING_COMMANDS) {
2377 sp = req->outstanding_cmds[handle];
2379 return sp->fcport->vha;
2384 vha = pci_get_drvdata(ha->pdev);