2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2010 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <scsi/scsi_tcq.h>
12 #include <scsi/scsi_bsg_fc.h>
13 #include <scsi/scsi_eh.h>
15 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
16 static void qla2x00_process_completed_request(struct scsi_qla_host *,
17 struct req_que *, uint32_t);
18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
26 * @dev_id: SCSI driver HA context
28 * Called by system whenever the host adapter generates an interrupt.
30 * Returns handled flag.
33 qla2100_intr_handler(int irq, void *dev_id)
36 struct qla_hw_data *ha;
37 struct device_reg_2xxx __iomem *reg;
45 rsp = (struct rsp_que *) dev_id;
48 "%s(): NULL response queue pointer\n", __func__);
53 reg = &ha->iobase->isp;
56 spin_lock_irqsave(&ha->hardware_lock, flags);
57 vha = pci_get_drvdata(ha->pdev);
58 for (iter = 50; iter--; ) {
59 hccr = RD_REG_WORD(®->hccr);
60 if (hccr & HCCR_RISC_PAUSE) {
61 if (pci_channel_offline(ha->pdev))
65 * Issue a "HARD" reset in order for the RISC interrupt
66 * bit to be cleared. Schedule a big hammmer to get
67 * out of the RISC PAUSED state.
69 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
70 RD_REG_WORD(®->hccr);
72 ha->isp_ops->fw_dump(vha, 1);
73 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
75 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
78 if (RD_REG_WORD(®->semaphore) & BIT_0) {
79 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
80 RD_REG_WORD(®->hccr);
82 /* Get mailbox data. */
83 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
84 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
85 qla2x00_mbx_completion(vha, mb[0]);
86 status |= MBX_INTERRUPT;
87 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
88 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
89 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
90 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
91 qla2x00_async_event(vha, rsp, mb);
94 DEBUG2(printk("scsi(%ld): Unrecognized "
95 "interrupt type (%d).\n",
96 vha->host_no, mb[0]));
98 /* Release mailbox registers. */
99 WRT_REG_WORD(®->semaphore, 0);
100 RD_REG_WORD(®->semaphore);
102 qla2x00_process_response_queue(rsp);
104 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
105 RD_REG_WORD(®->hccr);
108 spin_unlock_irqrestore(&ha->hardware_lock, flags);
110 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
111 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
112 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
113 complete(&ha->mbx_intr_comp);
116 return (IRQ_HANDLED);
120 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
122 * @dev_id: SCSI driver HA context
124 * Called by system whenever the host adapter generates an interrupt.
126 * Returns handled flag.
129 qla2300_intr_handler(int irq, void *dev_id)
131 scsi_qla_host_t *vha;
132 struct device_reg_2xxx __iomem *reg;
139 struct qla_hw_data *ha;
142 rsp = (struct rsp_que *) dev_id;
145 "%s(): NULL response queue pointer\n", __func__);
150 reg = &ha->iobase->isp;
153 spin_lock_irqsave(&ha->hardware_lock, flags);
154 vha = pci_get_drvdata(ha->pdev);
155 for (iter = 50; iter--; ) {
156 stat = RD_REG_DWORD(®->u.isp2300.host_status);
157 if (stat & HSR_RISC_PAUSED) {
158 if (unlikely(pci_channel_offline(ha->pdev)))
161 hccr = RD_REG_WORD(®->hccr);
162 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
163 qla_printk(KERN_INFO, ha, "Parity error -- "
164 "HCCR=%x, Dumping firmware!\n", hccr);
166 qla_printk(KERN_INFO, ha, "RISC paused -- "
167 "HCCR=%x, Dumping firmware!\n", hccr);
170 * Issue a "HARD" reset in order for the RISC
171 * interrupt bit to be cleared. Schedule a big
172 * hammmer to get out of the RISC PAUSED state.
174 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
175 RD_REG_WORD(®->hccr);
177 ha->isp_ops->fw_dump(vha, 1);
178 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
180 } else if ((stat & HSR_RISC_INT) == 0)
183 switch (stat & 0xff) {
188 qla2x00_mbx_completion(vha, MSW(stat));
189 status |= MBX_INTERRUPT;
191 /* Release mailbox registers. */
192 WRT_REG_WORD(®->semaphore, 0);
196 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
197 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
198 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
199 qla2x00_async_event(vha, rsp, mb);
202 qla2x00_process_response_queue(rsp);
205 mb[0] = MBA_CMPLT_1_16BIT;
207 qla2x00_async_event(vha, rsp, mb);
210 mb[0] = MBA_SCSI_COMPLETION;
212 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
213 qla2x00_async_event(vha, rsp, mb);
216 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
218 vha->host_no, stat & 0xff));
221 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
222 RD_REG_WORD_RELAXED(®->hccr);
224 spin_unlock_irqrestore(&ha->hardware_lock, flags);
226 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
227 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
228 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
229 complete(&ha->mbx_intr_comp);
232 return (IRQ_HANDLED);
236 * qla2x00_mbx_completion() - Process mailbox command completions.
237 * @ha: SCSI driver HA context
238 * @mb0: Mailbox0 register
241 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
244 uint16_t __iomem *wptr;
245 struct qla_hw_data *ha = vha->hw;
246 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
248 /* Load return mailbox registers. */
249 ha->flags.mbox_int = 1;
250 ha->mailbox_out[0] = mb0;
251 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
253 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
254 if (IS_QLA2200(ha) && cnt == 8)
255 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
256 if (cnt == 4 || cnt == 5)
257 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
259 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
265 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
266 __func__, vha->host_no, ha->mcp->mb[0]));
268 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
269 __func__, vha->host_no));
274 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
276 static char *event[] =
277 { "Complete", "Request Notification", "Time Extension" };
279 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
280 uint16_t __iomem *wptr;
281 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
283 /* Seed data -- mailbox1 -> mailbox7. */
284 wptr = (uint16_t __iomem *)®24->mailbox1;
285 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
286 mb[cnt] = RD_REG_WORD(wptr);
288 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
289 "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no,
291 mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6]));
293 /* Acknowledgement needed? [Notify && non-zero timeout]. */
294 timeout = (descr >> 8) & 0xf;
295 if (aen != MBA_IDC_NOTIFY || !timeout)
298 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
299 "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout));
301 rval = qla2x00_post_idc_ack_work(vha, mb);
302 if (rval != QLA_SUCCESS)
303 qla_printk(KERN_WARNING, vha->hw,
304 "IDC failed to post ACK.\n");
308 * qla2x00_async_event() - Process aynchronous events.
309 * @ha: SCSI driver HA context
310 * @mb: Mailbox registers (0 - 3)
313 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
316 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
321 struct qla_hw_data *ha = vha->hw;
322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
323 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
324 uint32_t rscn_entry, host_pid;
325 uint8_t rscn_queue_index;
328 /* Setup to process RIO completion. */
330 if (IS_QLA8XXX_TYPE(ha))
333 case MBA_SCSI_COMPLETION:
334 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
337 case MBA_CMPLT_1_16BIT:
340 mb[0] = MBA_SCSI_COMPLETION;
342 case MBA_CMPLT_2_16BIT:
346 mb[0] = MBA_SCSI_COMPLETION;
348 case MBA_CMPLT_3_16BIT:
353 mb[0] = MBA_SCSI_COMPLETION;
355 case MBA_CMPLT_4_16BIT:
359 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
361 mb[0] = MBA_SCSI_COMPLETION;
363 case MBA_CMPLT_5_16BIT:
367 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
368 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
370 mb[0] = MBA_SCSI_COMPLETION;
372 case MBA_CMPLT_2_32BIT:
373 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
374 handles[1] = le32_to_cpu(
375 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
376 RD_MAILBOX_REG(ha, reg, 6));
378 mb[0] = MBA_SCSI_COMPLETION;
385 case MBA_SCSI_COMPLETION: /* Fast Post */
386 if (!vha->flags.online)
389 for (cnt = 0; cnt < handle_cnt; cnt++)
390 qla2x00_process_completed_request(vha, rsp->req,
394 case MBA_RESET: /* Reset */
395 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n",
398 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
401 case MBA_SYSTEM_ERR: /* System Error */
402 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox7) : 0;
403 qla_printk(KERN_INFO, ha,
404 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
405 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
407 ha->isp_ops->fw_dump(vha, 1);
409 if (IS_FWI2_CAPABLE(ha)) {
410 if (mb[1] == 0 && mb[2] == 0) {
411 qla_printk(KERN_ERR, ha,
412 "Unrecoverable Hardware Error: adapter "
413 "marked OFFLINE!\n");
414 vha->flags.online = 0;
416 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
417 } else if (mb[1] == 0) {
418 qla_printk(KERN_INFO, ha,
419 "Unrecoverable Hardware Error: adapter marked "
421 vha->flags.online = 0;
423 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
426 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
427 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n",
428 vha->host_no, mb[1]));
429 qla_printk(KERN_WARNING, ha,
430 "ISP Request Transfer Error (%x).\n", mb[1]);
432 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
435 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
436 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
438 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
440 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
443 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
444 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
448 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
449 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no,
451 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
453 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
454 atomic_set(&vha->loop_state, LOOP_DOWN);
455 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
456 qla2x00_mark_all_devices_lost(vha, 1);
460 atomic_set(&vha->vp_state, VP_FAILED);
461 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
464 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
465 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
467 vha->flags.management_server_logged_in = 0;
468 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
471 case MBA_LOOP_UP: /* Loop Up Event */
472 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
473 link_speed = link_speeds[0];
474 ha->link_data_rate = PORT_SPEED_1GB;
476 link_speed = link_speeds[LS_UNKNOWN];
478 link_speed = link_speeds[mb[1]];
479 else if (mb[1] == 0x13)
480 link_speed = link_speeds[5];
481 ha->link_data_rate = mb[1];
484 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
485 vha->host_no, link_speed));
486 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
489 vha->flags.management_server_logged_in = 0;
490 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
493 case MBA_LOOP_DOWN: /* Loop Down Event */
494 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox4) : 0;
495 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
496 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3],
498 qla_printk(KERN_INFO, ha,
499 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3],
502 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
503 atomic_set(&vha->loop_state, LOOP_DOWN);
504 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
505 vha->device_flags |= DFLG_NO_CABLE;
506 qla2x00_mark_all_devices_lost(vha, 1);
510 atomic_set(&vha->vp_state, VP_FAILED);
511 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
514 vha->flags.management_server_logged_in = 0;
515 ha->link_data_rate = PORT_SPEED_UNKNOWN;
516 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
519 case MBA_LIP_RESET: /* LIP reset occurred */
520 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
521 vha->host_no, mb[1]));
522 qla_printk(KERN_INFO, ha,
523 "LIP reset occurred (%x).\n", mb[1]);
525 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
526 atomic_set(&vha->loop_state, LOOP_DOWN);
527 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
528 qla2x00_mark_all_devices_lost(vha, 1);
532 atomic_set(&vha->vp_state, VP_FAILED);
533 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
536 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
538 ha->operating_mode = LOOP;
539 vha->flags.management_server_logged_in = 0;
540 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
543 /* case MBA_DCBX_COMPLETE: */
544 case MBA_POINT_TO_POINT: /* Point-to-Point */
548 if (IS_QLA8XXX_TYPE(ha)) {
549 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x "
550 "%04x\n", vha->host_no, mb[1], mb[2], mb[3]));
551 if (ha->notify_dcbx_comp)
552 complete(&ha->dcbx_comp);
555 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE "
556 "received.\n", vha->host_no));
559 * Until there's a transition from loop down to loop up, treat
560 * this as loop down only.
562 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
563 atomic_set(&vha->loop_state, LOOP_DOWN);
564 if (!atomic_read(&vha->loop_down_timer))
565 atomic_set(&vha->loop_down_timer,
567 qla2x00_mark_all_devices_lost(vha, 1);
571 atomic_set(&vha->vp_state, VP_FAILED);
572 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
575 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
576 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
578 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
579 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
581 ha->flags.gpsc_supported = 1;
582 vha->flags.management_server_logged_in = 0;
585 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
589 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
592 qla_printk(KERN_INFO, ha,
593 "Configuration change detected: value=%x.\n", mb[1]);
595 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
596 atomic_set(&vha->loop_state, LOOP_DOWN);
597 if (!atomic_read(&vha->loop_down_timer))
598 atomic_set(&vha->loop_down_timer,
600 qla2x00_mark_all_devices_lost(vha, 1);
604 atomic_set(&vha->vp_state, VP_FAILED);
605 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
608 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
609 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
612 case MBA_PORT_UPDATE: /* Port database update */
614 * Handle only global and vn-port update events
617 * mb[1] = N_Port handle of changed port
618 * OR 0xffff for global event
619 * mb[2] = New login state
620 * 7 = Port logged out
621 * mb[3] = LSB is vp_idx, 0xff = all vps
623 * Skip processing if:
624 * Event is global, vp_idx is NOT all vps,
625 * vp_idx does not match
626 * Event is not global, vp_idx does not match
628 if (IS_QLA2XXX_MIDTYPE(ha) &&
629 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
630 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
633 /* Global event -- port logout or port unavailable. */
634 if (mb[1] == 0xffff && mb[2] == 0x7) {
635 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
637 DEBUG(printk(KERN_INFO
638 "scsi(%ld): Port unavailable %04x %04x %04x.\n",
639 vha->host_no, mb[1], mb[2], mb[3]));
641 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
642 atomic_set(&vha->loop_state, LOOP_DOWN);
643 atomic_set(&vha->loop_down_timer,
645 vha->device_flags |= DFLG_NO_CABLE;
646 qla2x00_mark_all_devices_lost(vha, 1);
650 atomic_set(&vha->vp_state, VP_FAILED);
651 fc_vport_set_state(vha->fc_vport,
653 qla2x00_mark_all_devices_lost(vha, 1);
656 vha->flags.management_server_logged_in = 0;
657 ha->link_data_rate = PORT_SPEED_UNKNOWN;
662 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
663 * event etc. earlier indicating loop is down) then process
664 * it. Otherwise ignore it and Wait for RSCN to come in.
666 atomic_set(&vha->loop_down_timer, 0);
667 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
668 atomic_read(&vha->loop_state) != LOOP_DEAD) {
669 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
670 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1],
675 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
677 DEBUG(printk(KERN_INFO
678 "scsi(%ld): Port database changed %04x %04x %04x.\n",
679 vha->host_no, mb[1], mb[2], mb[3]));
682 * Mark all devices as missing so we will login again.
684 atomic_set(&vha->loop_state, LOOP_UP);
686 qla2x00_mark_all_devices_lost(vha, 1);
688 vha->flags.rscn_queue_overflow = 1;
690 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
691 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
694 case MBA_RSCN_UPDATE: /* State Change Registration */
695 /* Check if the Vport has issued a SCR */
696 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
698 /* Only handle SCNs for our Vport index. */
699 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
702 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
704 DEBUG(printk(KERN_INFO
705 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
706 vha->host_no, mb[1], mb[2], mb[3]));
708 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
709 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
711 if (rscn_entry == host_pid) {
712 DEBUG(printk(KERN_INFO
713 "scsi(%ld): Ignoring RSCN update to local host "
715 vha->host_no, host_pid));
719 /* Ignore reserved bits from RSCN-payload. */
720 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
721 rscn_queue_index = vha->rscn_in_ptr + 1;
722 if (rscn_queue_index == MAX_RSCN_COUNT)
723 rscn_queue_index = 0;
724 if (rscn_queue_index != vha->rscn_out_ptr) {
725 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
726 vha->rscn_in_ptr = rscn_queue_index;
728 vha->flags.rscn_queue_overflow = 1;
731 atomic_set(&vha->loop_state, LOOP_UPDATE);
732 atomic_set(&vha->loop_down_timer, 0);
733 vha->flags.management_server_logged_in = 0;
735 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
736 set_bit(RSCN_UPDATE, &vha->dpc_flags);
737 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
740 /* case MBA_RIO_RESPONSE: */
741 case MBA_ZIO_RESPONSE:
742 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
745 if (IS_FWI2_CAPABLE(ha))
746 qla24xx_process_response_queue(vha, rsp);
748 qla2x00_process_response_queue(rsp);
751 case MBA_DISCARD_RND_FRAME:
752 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
753 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
756 case MBA_TRACE_NOTIFICATION:
757 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
758 vha->host_no, mb[1], mb[2]));
761 case MBA_ISP84XX_ALERT:
762 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
763 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
765 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
767 case A84_PANIC_RECOVERY:
768 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
769 "%04x %04x\n", mb[2], mb[3]);
771 case A84_OP_LOGIN_COMPLETE:
772 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
773 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
774 "firmware version %x\n", ha->cs84xx->op_fw_version));
776 case A84_DIAG_LOGIN_COMPLETE:
777 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
778 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
779 "diagnostic firmware version %x\n",
780 ha->cs84xx->diag_fw_version));
782 case A84_GOLD_LOGIN_COMPLETE:
783 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
784 ha->cs84xx->fw_update = 1;
785 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
786 "firmware version %x\n",
787 ha->cs84xx->gold_fw_version));
790 qla_printk(KERN_ERR, ha,
791 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
792 mb[1], mb[2], mb[3]);
794 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
797 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n",
798 vha->host_no, mb[1], mb[2], mb[3]));
800 case MBA_DCBX_PARAM_UPDATE:
801 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- "
802 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
804 case MBA_FCF_CONF_ERR:
805 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- "
806 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
808 case MBA_IDC_COMPLETE:
810 case MBA_IDC_TIME_EXT:
811 qla81xx_idc_event(vha, mb[0], mb[1]);
815 if (!vha->vp_idx && ha->num_vhosts)
816 qla2x00_alert_all_vps(rsp, mb);
820 * qla2x00_process_completed_request() - Process a Fast Post response.
821 * @ha: SCSI driver HA context
825 qla2x00_process_completed_request(struct scsi_qla_host *vha,
826 struct req_que *req, uint32_t index)
829 struct qla_hw_data *ha = vha->hw;
831 /* Validate handle. */
832 if (index >= MAX_OUTSTANDING_COMMANDS) {
833 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
834 vha->host_no, index));
835 qla_printk(KERN_WARNING, ha,
836 "Invalid SCSI completion handle %d.\n", index);
838 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
842 sp = req->outstanding_cmds[index];
844 /* Free outstanding command slot. */
845 req->outstanding_cmds[index] = NULL;
847 /* Save ISP completion status */
848 sp->cmd->result = DID_OK << 16;
849 qla2x00_sp_compl(ha, sp);
851 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
852 " handle(0x%x)\n", vha->host_no, req->id, index));
853 qla_printk(KERN_WARNING, ha,
854 "Invalid ISP SCSI completion handle\n");
856 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
861 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
862 struct req_que *req, void *iocb)
864 struct qla_hw_data *ha = vha->hw;
865 sts_entry_t *pkt = iocb;
869 index = LSW(pkt->handle);
870 if (index >= MAX_OUTSTANDING_COMMANDS) {
871 qla_printk(KERN_WARNING, ha,
872 "%s: Invalid completion handle (%x).\n", func, index);
873 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
876 sp = req->outstanding_cmds[index];
878 qla_printk(KERN_WARNING, ha,
879 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
883 if (sp->handle != index) {
884 qla_printk(KERN_WARNING, ha,
885 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
890 req->outstanding_cmds[index] = NULL;
897 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
898 struct mbx_entry *mbx)
900 const char func[] = "MBX-IOCB";
904 struct srb_iocb *lio;
909 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
914 lio = ctx->u.iocb_cmd;
917 data = lio->u.logio.data;
919 data[0] = MBS_COMMAND_ERROR;
920 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
921 QLA_LOGIO_LOGIN_RETRIED : 0;
922 if (mbx->entry_status) {
923 DEBUG2(printk(KERN_WARNING
924 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x "
925 "entry-status=%x status=%x state-flag=%x "
926 "status-flags=%x.\n",
927 fcport->vha->host_no, sp->handle, type,
928 fcport->d_id.b.domain, fcport->d_id.b.area,
929 fcport->d_id.b.al_pa, mbx->entry_status,
930 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
931 le16_to_cpu(mbx->status_flags)));
933 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
938 status = le16_to_cpu(mbx->status);
939 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD &&
940 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
942 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
943 DEBUG2(printk(KERN_DEBUG
944 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
946 fcport->vha->host_no, sp->handle, type,
947 fcport->d_id.b.domain, fcport->d_id.b.area,
948 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1)));
950 data[0] = MBS_COMMAND_COMPLETE;
951 if (ctx->type == SRB_LOGIN_CMD) {
952 fcport->port_type = FCT_TARGET;
953 if (le16_to_cpu(mbx->mb1) & BIT_0)
954 fcport->port_type = FCT_INITIATOR;
955 else if (le16_to_cpu(mbx->mb1) & BIT_1)
956 fcport->flags |= FCF_FCP2_DEVICE;
961 data[0] = le16_to_cpu(mbx->mb0);
963 case MBS_PORT_ID_USED:
964 data[1] = le16_to_cpu(mbx->mb1);
966 case MBS_LOOP_ID_USED:
969 data[0] = MBS_COMMAND_ERROR;
973 DEBUG2(printk(KERN_WARNING
974 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x "
975 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
976 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
977 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
978 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
979 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
980 le16_to_cpu(mbx->mb7)));
987 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
988 sts_entry_t *pkt, int iocb_type)
990 const char func[] = "CT_IOCB";
992 struct qla_hw_data *ha = vha->hw;
994 struct srb_ctx *sp_bsg;
995 struct fc_bsg_job *bsg_job;
996 uint16_t comp_status;
998 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1003 bsg_job = sp_bsg->u.bsg_job;
1006 switch (sp_bsg->type) {
1008 type = "ct pass-through";
1011 qla_printk(KERN_WARNING, ha,
1012 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1017 comp_status = le16_to_cpu(pkt->comp_status);
1019 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1020 * fc payload to the caller
1022 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1023 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1025 if (comp_status != CS_COMPLETE) {
1026 if (comp_status == CS_DATA_UNDERRUN) {
1027 bsg_job->reply->result = DID_OK << 16;
1028 bsg_job->reply->reply_payload_rcv_len =
1029 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1031 DEBUG2(qla_printk(KERN_WARNING, ha,
1032 "scsi(%ld): CT pass-through-%s error "
1033 "comp_status-status=0x%x total_byte = 0x%x.\n",
1034 vha->host_no, type, comp_status,
1035 bsg_job->reply->reply_payload_rcv_len));
1037 DEBUG2(qla_printk(KERN_WARNING, ha,
1038 "scsi(%ld): CT pass-through-%s error "
1039 "comp_status-status=0x%x.\n",
1040 vha->host_no, type, comp_status));
1041 bsg_job->reply->result = DID_ERROR << 16;
1042 bsg_job->reply->reply_payload_rcv_len = 0;
1044 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1046 bsg_job->reply->result = DID_OK << 16;;
1047 bsg_job->reply->reply_payload_rcv_len =
1048 bsg_job->reply_payload.payload_len;
1049 bsg_job->reply_len = 0;
1052 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1053 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1055 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1056 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1058 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1062 mempool_free(sp, ha->srb_mempool);
1063 bsg_job->job_done(bsg_job);
1067 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1068 struct sts_entry_24xx *pkt, int iocb_type)
1070 const char func[] = "ELS_CT_IOCB";
1072 struct qla_hw_data *ha = vha->hw;
1074 struct srb_ctx *sp_bsg;
1075 struct fc_bsg_job *bsg_job;
1076 uint16_t comp_status;
1077 uint32_t fw_status[3];
1078 uint8_t* fw_sts_ptr;
1080 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1084 bsg_job = sp_bsg->u.bsg_job;
1087 switch (sp_bsg->type) {
1088 case SRB_ELS_CMD_RPT:
1089 case SRB_ELS_CMD_HST:
1093 type = "ct pass-through";
1096 qla_printk(KERN_WARNING, ha,
1097 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1102 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1103 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1104 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1106 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1107 * fc payload to the caller
1109 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1110 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1112 if (comp_status != CS_COMPLETE) {
1113 if (comp_status == CS_DATA_UNDERRUN) {
1114 bsg_job->reply->result = DID_OK << 16;
1115 bsg_job->reply->reply_payload_rcv_len =
1116 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1118 DEBUG2(qla_printk(KERN_WARNING, ha,
1119 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1120 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1121 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2],
1122 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count)));
1123 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1124 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1127 DEBUG2(qla_printk(KERN_WARNING, ha,
1128 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1129 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1130 vha->host_no, sp->handle, type, comp_status,
1131 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1),
1132 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2)));
1133 bsg_job->reply->result = DID_ERROR << 16;
1134 bsg_job->reply->reply_payload_rcv_len = 0;
1135 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1136 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1138 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1141 bsg_job->reply->result = DID_OK << 16;;
1142 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1143 bsg_job->reply_len = 0;
1146 dma_unmap_sg(&ha->pdev->dev,
1147 bsg_job->request_payload.sg_list,
1148 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1149 dma_unmap_sg(&ha->pdev->dev,
1150 bsg_job->reply_payload.sg_list,
1151 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1152 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1153 (sp_bsg->type == SRB_CT_CMD))
1156 mempool_free(sp, ha->srb_mempool);
1157 bsg_job->job_done(bsg_job);
1161 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1162 struct logio_entry_24xx *logio)
1164 const char func[] = "LOGIO-IOCB";
1168 struct srb_iocb *lio;
1169 struct srb_ctx *ctx;
1173 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1178 lio = ctx->u.iocb_cmd;
1180 fcport = sp->fcport;
1181 data = lio->u.logio.data;
1183 data[0] = MBS_COMMAND_ERROR;
1184 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1185 QLA_LOGIO_LOGIN_RETRIED : 0;
1186 if (logio->entry_status) {
1187 DEBUG2(printk(KERN_WARNING
1188 "scsi(%ld:%x): Async-%s error entry - "
1189 "portid=%02x%02x%02x entry-status=%x.\n",
1190 fcport->vha->host_no, sp->handle, type,
1191 fcport->d_id.b.domain, fcport->d_id.b.area,
1192 fcport->d_id.b.al_pa, logio->entry_status));
1193 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1198 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1199 DEBUG2(printk(KERN_DEBUG
1200 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
1202 fcport->vha->host_no, sp->handle, type,
1203 fcport->d_id.b.domain, fcport->d_id.b.area,
1204 fcport->d_id.b.al_pa,
1205 le32_to_cpu(logio->io_parameter[0])));
1207 data[0] = MBS_COMMAND_COMPLETE;
1208 if (ctx->type != SRB_LOGIN_CMD)
1211 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1212 if (iop[0] & BIT_4) {
1213 fcport->port_type = FCT_TARGET;
1215 fcport->flags |= FCF_FCP2_DEVICE;
1216 } else if (iop[0] & BIT_5)
1217 fcport->port_type = FCT_INITIATOR;
1219 if (logio->io_parameter[7] || logio->io_parameter[8])
1220 fcport->supported_classes |= FC_COS_CLASS2;
1221 if (logio->io_parameter[9] || logio->io_parameter[10])
1222 fcport->supported_classes |= FC_COS_CLASS3;
1227 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1228 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1230 case LSC_SCODE_PORTID_USED:
1231 data[0] = MBS_PORT_ID_USED;
1232 data[1] = LSW(iop[1]);
1234 case LSC_SCODE_NPORT_USED:
1235 data[0] = MBS_LOOP_ID_USED;
1237 case LSC_SCODE_CMD_FAILED:
1238 if ((iop[1] & 0xff) == 0x05) {
1239 data[0] = MBS_NOT_LOGGED_IN;
1244 data[0] = MBS_COMMAND_ERROR;
1248 DEBUG2(printk(KERN_WARNING
1249 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x "
1250 "iop0=%x iop1=%x.\n",
1251 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
1252 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1253 le16_to_cpu(logio->comp_status),
1254 le32_to_cpu(logio->io_parameter[0]),
1255 le32_to_cpu(logio->io_parameter[1])));
1262 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1263 struct tsk_mgmt_entry *tsk)
1265 const char func[] = "TMF-IOCB";
1269 struct srb_iocb *iocb;
1270 struct srb_ctx *ctx;
1271 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1274 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1279 iocb = ctx->u.iocb_cmd;
1281 fcport = sp->fcport;
1283 if (sts->entry_status) {
1284 DEBUG2(printk(KERN_WARNING
1285 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n",
1286 fcport->vha->host_no, sp->handle, type,
1287 sts->entry_status));
1288 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1289 DEBUG2(printk(KERN_WARNING
1290 "scsi(%ld:%x): Async-%s error - completion status(%x).\n",
1291 fcport->vha->host_no, sp->handle, type,
1293 } else if (!(le16_to_cpu(sts->scsi_status) &
1294 SS_RESPONSE_INFO_LEN_VALID)) {
1295 DEBUG2(printk(KERN_WARNING
1296 "scsi(%ld:%x): Async-%s error - no response info(%x).\n",
1297 fcport->vha->host_no, sp->handle, type,
1299 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1300 DEBUG2(printk(KERN_WARNING
1301 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n",
1302 fcport->vha->host_no, sp->handle, type,
1303 sts->rsp_data_len));
1304 } else if (sts->data[3]) {
1305 DEBUG2(printk(KERN_WARNING
1306 "scsi(%ld:%x): Async-%s error - response(%x).\n",
1307 fcport->vha->host_no, sp->handle, type,
1314 iocb->u.tmf.data = error;
1315 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts)));
1322 * qla2x00_process_response_queue() - Process response queue entries.
1323 * @ha: SCSI driver HA context
1326 qla2x00_process_response_queue(struct rsp_que *rsp)
1328 struct scsi_qla_host *vha;
1329 struct qla_hw_data *ha = rsp->hw;
1330 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1332 uint16_t handle_cnt;
1335 vha = pci_get_drvdata(ha->pdev);
1337 if (!vha->flags.online)
1340 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1341 pkt = (sts_entry_t *)rsp->ring_ptr;
1344 if (rsp->ring_index == rsp->length) {
1345 rsp->ring_index = 0;
1346 rsp->ring_ptr = rsp->ring;
1351 if (pkt->entry_status != 0) {
1352 DEBUG3(printk(KERN_INFO
1353 "scsi(%ld): Process error entry.\n", vha->host_no));
1355 qla2x00_error_entry(vha, rsp, pkt);
1356 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1361 switch (pkt->entry_type) {
1363 qla2x00_status_entry(vha, rsp, pkt);
1365 case STATUS_TYPE_21:
1366 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1367 for (cnt = 0; cnt < handle_cnt; cnt++) {
1368 qla2x00_process_completed_request(vha, rsp->req,
1369 ((sts21_entry_t *)pkt)->handle[cnt]);
1372 case STATUS_TYPE_22:
1373 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1374 for (cnt = 0; cnt < handle_cnt; cnt++) {
1375 qla2x00_process_completed_request(vha, rsp->req,
1376 ((sts22_entry_t *)pkt)->handle[cnt]);
1379 case STATUS_CONT_TYPE:
1380 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1383 qla2x00_mbx_iocb_entry(vha, rsp->req,
1384 (struct mbx_entry *)pkt);
1387 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1390 /* Type Not Supported. */
1391 DEBUG4(printk(KERN_WARNING
1392 "scsi(%ld): Received unknown response pkt type %x "
1393 "entry status=%x.\n",
1394 vha->host_no, pkt->entry_type, pkt->entry_status));
1397 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1401 /* Adjust ring index */
1402 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1407 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1408 uint32_t sense_len, struct rsp_que *rsp)
1410 struct scsi_cmnd *cp = sp->cmd;
1412 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1413 sense_len = SCSI_SENSE_BUFFERSIZE;
1415 sp->request_sense_length = sense_len;
1416 sp->request_sense_ptr = cp->sense_buffer;
1417 if (sp->request_sense_length > par_sense_len)
1418 sense_len = par_sense_len;
1420 memcpy(cp->sense_buffer, sense_data, sense_len);
1422 sp->request_sense_ptr += sense_len;
1423 sp->request_sense_length -= sense_len;
1424 if (sp->request_sense_length != 0)
1425 rsp->status_srb = sp;
1427 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1428 "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no,
1429 cp->device->channel, cp->device->id, cp->device->lun, cp,
1430 cp->serial_number));
1432 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1435 struct scsi_dif_tuple {
1436 __be16 guard; /* Checksum */
1437 __be16 app_tag; /* APPL identifer */
1438 __be32 ref_tag; /* Target LBA or indirect LBA */
1442 * Checks the guard or meta-data for the type of error
1443 * detected by the HBA. In case of errors, we set the
1444 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1445 * to indicate to the kernel that the HBA detected error.
1448 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1450 struct scsi_cmnd *cmd = sp->cmd;
1451 struct scsi_dif_tuple *ep =
1452 (struct scsi_dif_tuple *)&sts24->data[20];
1453 struct scsi_dif_tuple *ap =
1454 (struct scsi_dif_tuple *)&sts24->data[12];
1455 uint32_t e_ref_tag, a_ref_tag;
1456 uint16_t e_app_tag, a_app_tag;
1457 uint16_t e_guard, a_guard;
1459 e_ref_tag = be32_to_cpu(ep->ref_tag);
1460 a_ref_tag = be32_to_cpu(ap->ref_tag);
1461 e_app_tag = be16_to_cpu(ep->app_tag);
1462 a_app_tag = be16_to_cpu(ap->app_tag);
1463 e_guard = be16_to_cpu(ep->guard);
1464 a_guard = be16_to_cpu(ap->guard);
1466 DEBUG18(printk(KERN_DEBUG
1467 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24));
1469 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1470 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1471 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n",
1472 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1473 a_app_tag, e_app_tag, a_guard, e_guard));
1477 if (e_guard != a_guard) {
1478 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1480 set_driver_byte(cmd, DRIVER_SENSE);
1481 set_host_byte(cmd, DID_ABORT);
1482 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1486 /* check appl tag */
1487 if (e_app_tag != a_app_tag) {
1488 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1490 set_driver_byte(cmd, DRIVER_SENSE);
1491 set_host_byte(cmd, DID_ABORT);
1492 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1497 if (e_ref_tag != a_ref_tag) {
1498 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1500 set_driver_byte(cmd, DRIVER_SENSE);
1501 set_host_byte(cmd, DID_ABORT);
1502 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1508 * qla2x00_status_entry() - Process a Status IOCB entry.
1509 * @ha: SCSI driver HA context
1510 * @pkt: Entry pointer
1513 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1517 struct scsi_cmnd *cp;
1519 struct sts_entry_24xx *sts24;
1520 uint16_t comp_status;
1521 uint16_t scsi_status;
1523 uint8_t lscsi_status;
1525 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1527 uint8_t *rsp_info, *sense_data;
1528 struct qla_hw_data *ha = vha->hw;
1531 struct req_que *req;
1534 sts = (sts_entry_t *) pkt;
1535 sts24 = (struct sts_entry_24xx *) pkt;
1536 if (IS_FWI2_CAPABLE(ha)) {
1537 comp_status = le16_to_cpu(sts24->comp_status);
1538 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1540 comp_status = le16_to_cpu(sts->comp_status);
1541 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1543 handle = (uint32_t) LSW(sts->handle);
1544 que = MSW(sts->handle);
1545 req = ha->req_q_map[que];
1547 /* Fast path completion. */
1548 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1549 qla2x00_process_completed_request(vha, req, handle);
1554 /* Validate handle. */
1555 if (handle < MAX_OUTSTANDING_COMMANDS) {
1556 sp = req->outstanding_cmds[handle];
1557 req->outstanding_cmds[handle] = NULL;
1562 qla_printk(KERN_WARNING, ha,
1563 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no,
1566 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1567 qla2xxx_wake_dpc(vha);
1572 qla_printk(KERN_WARNING, ha,
1573 "scsi(%ld): Command already returned (0x%x/%p).\n",
1574 vha->host_no, sts->handle, sp);
1579 lscsi_status = scsi_status & STATUS_MASK;
1581 fcport = sp->fcport;
1584 sense_len = par_sense_len = rsp_info_len = resid_len =
1586 if (IS_FWI2_CAPABLE(ha)) {
1587 if (scsi_status & SS_SENSE_LEN_VALID)
1588 sense_len = le32_to_cpu(sts24->sense_len);
1589 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1590 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1591 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1592 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1593 if (comp_status == CS_DATA_UNDERRUN)
1594 fw_resid_len = le32_to_cpu(sts24->residual_len);
1595 rsp_info = sts24->data;
1596 sense_data = sts24->data;
1597 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1598 ox_id = le16_to_cpu(sts24->ox_id);
1599 par_sense_len = sizeof(sts24->data);
1601 if (scsi_status & SS_SENSE_LEN_VALID)
1602 sense_len = le16_to_cpu(sts->req_sense_length);
1603 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1604 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1605 resid_len = le32_to_cpu(sts->residual_length);
1606 rsp_info = sts->rsp_info;
1607 sense_data = sts->req_sense_data;
1608 par_sense_len = sizeof(sts->req_sense_data);
1611 /* Check for any FCP transport errors. */
1612 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1613 /* Sense data lies beyond any FCP RESPONSE data. */
1614 if (IS_FWI2_CAPABLE(ha)) {
1615 sense_data += rsp_info_len;
1616 par_sense_len -= rsp_info_len;
1618 if (rsp_info_len > 3 && rsp_info[3]) {
1619 DEBUG2(qla_printk(KERN_INFO, ha,
1620 "scsi(%ld:%d:%d): FCP I/O protocol failure "
1621 "(0x%x/0x%x).\n", vha->host_no, cp->device->id,
1622 cp->device->lun, rsp_info_len, rsp_info[3]));
1624 cp->result = DID_BUS_BUSY << 16;
1629 /* Check for overrun. */
1630 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1631 scsi_status & SS_RESIDUAL_OVER)
1632 comp_status = CS_DATA_OVERRUN;
1635 * Based on Host and scsi status generate status code for Linux
1637 switch (comp_status) {
1640 if (scsi_status == 0) {
1641 cp->result = DID_OK << 16;
1644 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1646 scsi_set_resid(cp, resid);
1648 if (!lscsi_status &&
1649 ((unsigned)(scsi_bufflen(cp) - resid) <
1651 qla_printk(KERN_INFO, ha,
1652 "scsi(%ld:%d:%d): Mid-layer underflow "
1653 "detected (0x%x of 0x%x bytes).\n",
1654 vha->host_no, cp->device->id,
1655 cp->device->lun, resid, scsi_bufflen(cp));
1657 cp->result = DID_ERROR << 16;
1661 cp->result = DID_OK << 16 | lscsi_status;
1663 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1664 DEBUG2(qla_printk(KERN_INFO, ha,
1665 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1666 vha->host_no, cp->device->id, cp->device->lun));
1670 if (lscsi_status != SS_CHECK_CONDITION)
1673 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1674 if (!(scsi_status & SS_SENSE_LEN_VALID))
1677 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1681 case CS_DATA_UNDERRUN:
1682 /* Use F/W calculated residual length. */
1683 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1684 scsi_set_resid(cp, resid);
1685 if (scsi_status & SS_RESIDUAL_UNDER) {
1686 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1687 DEBUG2(qla_printk(KERN_INFO, ha,
1688 "scsi(%ld:%d:%d) Dropped frame(s) detected "
1689 "(0x%x of 0x%x bytes).\n", vha->host_no,
1690 cp->device->id, cp->device->lun, resid,
1693 cp->result = DID_ERROR << 16 | lscsi_status;
1697 if (!lscsi_status &&
1698 ((unsigned)(scsi_bufflen(cp) - resid) <
1700 qla_printk(KERN_INFO, ha,
1701 "scsi(%ld:%d:%d): Mid-layer underflow "
1702 "detected (0x%x of 0x%x bytes).\n",
1703 vha->host_no, cp->device->id,
1704 cp->device->lun, resid, scsi_bufflen(cp));
1706 cp->result = DID_ERROR << 16;
1709 } else if (!lscsi_status) {
1710 DEBUG2(qla_printk(KERN_INFO, ha,
1711 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x "
1712 "of 0x%x bytes).\n", vha->host_no, cp->device->id,
1713 cp->device->lun, resid, scsi_bufflen(cp)));
1715 cp->result = DID_ERROR << 16;
1719 cp->result = DID_OK << 16 | lscsi_status;
1723 * Check to see if SCSI Status is non zero. If so report SCSI
1726 if (lscsi_status != 0) {
1727 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1728 DEBUG2(qla_printk(KERN_INFO, ha,
1729 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1730 vha->host_no, cp->device->id,
1735 if (lscsi_status != SS_CHECK_CONDITION)
1738 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1739 if (!(scsi_status & SS_SENSE_LEN_VALID))
1742 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1747 case CS_PORT_LOGGED_OUT:
1748 case CS_PORT_CONFIG_CHG:
1751 case CS_PORT_UNAVAILABLE:
1754 * We are going to have the fc class block the rport
1755 * while we try to recover so instruct the mid layer
1756 * to requeue until the class decides how to handle this.
1758 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1760 if (comp_status == CS_TIMEOUT) {
1761 if (IS_FWI2_CAPABLE(ha))
1763 else if ((le16_to_cpu(sts->status_flags) &
1764 SF_LOGOUT_SENT) == 0)
1768 DEBUG2(qla_printk(KERN_INFO, ha,
1769 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n",
1770 vha->host_no, cp->device->id, cp->device->lun,
1771 atomic_read(&fcport->state)));
1773 if (atomic_read(&fcport->state) == FCS_ONLINE)
1774 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1778 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1782 cp->result = DID_RESET << 16;
1786 qla2x00_handle_dif_error(sp, sts24);
1789 cp->result = DID_ERROR << 16;
1795 DEBUG2(qla_printk(KERN_INFO, ha,
1796 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) "
1797 "oxid=0x%x ser=0x%lx cdb=%02x%02x%02x len=0x%x "
1798 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no,
1799 cp->device->id, cp->device->lun, comp_status, scsi_status,
1800 cp->result, ox_id, cp->serial_number, cp->cmnd[0],
1801 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len,
1802 resid_len, fw_resid_len));
1804 if (rsp->status_srb == NULL)
1805 qla2x00_sp_compl(ha, sp);
1809 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1810 * @ha: SCSI driver HA context
1811 * @pkt: Entry pointer
1813 * Extended sense data.
1816 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1818 uint8_t sense_sz = 0;
1819 struct qla_hw_data *ha = rsp->hw;
1820 srb_t *sp = rsp->status_srb;
1821 struct scsi_cmnd *cp;
1823 if (sp != NULL && sp->request_sense_length != 0) {
1826 DEBUG2(printk("%s(): Cmd already returned back to OS "
1827 "sp=%p.\n", __func__, sp));
1828 qla_printk(KERN_INFO, ha,
1829 "cmd is NULL: already returned to OS (sp=%p)\n",
1832 rsp->status_srb = NULL;
1836 if (sp->request_sense_length > sizeof(pkt->data)) {
1837 sense_sz = sizeof(pkt->data);
1839 sense_sz = sp->request_sense_length;
1842 /* Move sense data. */
1843 if (IS_FWI2_CAPABLE(ha))
1844 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1845 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1846 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1848 sp->request_sense_ptr += sense_sz;
1849 sp->request_sense_length -= sense_sz;
1851 /* Place command on done queue. */
1852 if (sp->request_sense_length == 0) {
1853 rsp->status_srb = NULL;
1854 qla2x00_sp_compl(ha, sp);
1860 * qla2x00_error_entry() - Process an error entry.
1861 * @ha: SCSI driver HA context
1862 * @pkt: Entry pointer
1865 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1868 struct qla_hw_data *ha = vha->hw;
1869 uint32_t handle = LSW(pkt->handle);
1870 uint16_t que = MSW(pkt->handle);
1871 struct req_que *req = ha->req_q_map[que];
1872 #if defined(QL_DEBUG_LEVEL_2)
1873 if (pkt->entry_status & RF_INV_E_ORDER)
1874 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1875 else if (pkt->entry_status & RF_INV_E_COUNT)
1876 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1877 else if (pkt->entry_status & RF_INV_E_PARAM)
1878 qla_printk(KERN_ERR, ha,
1879 "%s: Invalid Entry Parameter\n", __func__);
1880 else if (pkt->entry_status & RF_INV_E_TYPE)
1881 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1882 else if (pkt->entry_status & RF_BUSY)
1883 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1885 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1888 /* Validate handle. */
1889 if (handle < MAX_OUTSTANDING_COMMANDS)
1890 sp = req->outstanding_cmds[handle];
1895 /* Free outstanding command slot. */
1896 req->outstanding_cmds[handle] = NULL;
1898 /* Bad payload or header */
1899 if (pkt->entry_status &
1900 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1901 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1902 sp->cmd->result = DID_ERROR << 16;
1903 } else if (pkt->entry_status & RF_BUSY) {
1904 sp->cmd->result = DID_BUS_BUSY << 16;
1906 sp->cmd->result = DID_ERROR << 16;
1908 qla2x00_sp_compl(ha, sp);
1910 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1911 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1912 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1914 qla_printk(KERN_WARNING, ha,
1915 "Error entry - invalid handle\n");
1917 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1918 qla2xxx_wake_dpc(vha);
1923 * qla24xx_mbx_completion() - Process mailbox command completions.
1924 * @ha: SCSI driver HA context
1925 * @mb0: Mailbox0 register
1928 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1931 uint16_t __iomem *wptr;
1932 struct qla_hw_data *ha = vha->hw;
1933 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1935 /* Load return mailbox registers. */
1936 ha->flags.mbox_int = 1;
1937 ha->mailbox_out[0] = mb0;
1938 wptr = (uint16_t __iomem *)®->mailbox1;
1940 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1941 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1946 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1947 __func__, vha->host_no, ha->mcp->mb[0]));
1949 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1950 __func__, vha->host_no));
1955 * qla24xx_process_response_queue() - Process response queue entries.
1956 * @ha: SCSI driver HA context
1958 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1959 struct rsp_que *rsp)
1961 struct sts_entry_24xx *pkt;
1962 struct qla_hw_data *ha = vha->hw;
1964 if (!vha->flags.online)
1967 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1968 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1971 if (rsp->ring_index == rsp->length) {
1972 rsp->ring_index = 0;
1973 rsp->ring_ptr = rsp->ring;
1978 if (pkt->entry_status != 0) {
1979 DEBUG3(printk(KERN_INFO
1980 "scsi(%ld): Process error entry.\n", vha->host_no));
1982 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1983 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1988 switch (pkt->entry_type) {
1990 qla2x00_status_entry(vha, rsp, pkt);
1992 case STATUS_CONT_TYPE:
1993 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1995 case VP_RPT_ID_IOCB_TYPE:
1996 qla24xx_report_id_acquisition(vha,
1997 (struct vp_rpt_id_entry_24xx *)pkt);
1999 case LOGINOUT_PORT_IOCB_TYPE:
2000 qla24xx_logio_entry(vha, rsp->req,
2001 (struct logio_entry_24xx *)pkt);
2003 case TSK_MGMT_IOCB_TYPE:
2004 qla24xx_tm_iocb_entry(vha, rsp->req,
2005 (struct tsk_mgmt_entry *)pkt);
2008 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2009 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2012 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2015 /* Type Not Supported. */
2016 DEBUG4(printk(KERN_WARNING
2017 "scsi(%ld): Received unknown response pkt type %x "
2018 "entry status=%x.\n",
2019 vha->host_no, pkt->entry_type, pkt->entry_status));
2022 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2026 /* Adjust ring index */
2027 if (IS_QLA82XX(ha)) {
2028 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2029 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index);
2031 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2035 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2039 struct qla_hw_data *ha = vha->hw;
2040 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2042 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2046 WRT_REG_DWORD(®->iobase_addr, 0x7C00);
2047 RD_REG_DWORD(®->iobase_addr);
2048 WRT_REG_DWORD(®->iobase_window, 0x0001);
2049 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
2050 rval == QLA_SUCCESS; cnt--) {
2052 WRT_REG_DWORD(®->iobase_window, 0x0001);
2055 rval = QLA_FUNCTION_TIMEOUT;
2057 if (rval == QLA_SUCCESS)
2060 WRT_REG_DWORD(®->iobase_window, 0x0003);
2061 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
2062 rval == QLA_SUCCESS; cnt--) {
2064 WRT_REG_DWORD(®->iobase_window, 0x0003);
2067 rval = QLA_FUNCTION_TIMEOUT;
2069 if (rval != QLA_SUCCESS)
2073 if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
2074 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
2077 WRT_REG_DWORD(®->iobase_window, 0x0000);
2078 RD_REG_DWORD(®->iobase_window);
2082 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2084 * @dev_id: SCSI driver HA context
2086 * Called by system whenever the host adapter generates an interrupt.
2088 * Returns handled flag.
2091 qla24xx_intr_handler(int irq, void *dev_id)
2093 scsi_qla_host_t *vha;
2094 struct qla_hw_data *ha;
2095 struct device_reg_24xx __iomem *reg;
2101 struct rsp_que *rsp;
2102 unsigned long flags;
2104 rsp = (struct rsp_que *) dev_id;
2107 "%s(): NULL response queue pointer\n", __func__);
2112 reg = &ha->iobase->isp24;
2115 if (unlikely(pci_channel_offline(ha->pdev)))
2118 spin_lock_irqsave(&ha->hardware_lock, flags);
2119 vha = pci_get_drvdata(ha->pdev);
2120 for (iter = 50; iter--; ) {
2121 stat = RD_REG_DWORD(®->host_status);
2122 if (stat & HSRX_RISC_PAUSED) {
2123 if (unlikely(pci_channel_offline(ha->pdev)))
2126 hccr = RD_REG_DWORD(®->hccr);
2128 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2129 "Dumping firmware!\n", hccr);
2131 qla2xxx_check_risc_status(vha);
2133 ha->isp_ops->fw_dump(vha, 1);
2134 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2136 } else if ((stat & HSRX_RISC_INT) == 0)
2139 switch (stat & 0xff) {
2144 qla24xx_mbx_completion(vha, MSW(stat));
2145 status |= MBX_INTERRUPT;
2150 mb[1] = RD_REG_WORD(®->mailbox1);
2151 mb[2] = RD_REG_WORD(®->mailbox2);
2152 mb[3] = RD_REG_WORD(®->mailbox3);
2153 qla2x00_async_event(vha, rsp, mb);
2157 qla24xx_process_response_queue(vha, rsp);
2160 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2162 vha->host_no, stat & 0xff));
2165 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2166 RD_REG_DWORD_RELAXED(®->hccr);
2168 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2170 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2171 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2172 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2173 complete(&ha->mbx_intr_comp);
2180 qla24xx_msix_rsp_q(int irq, void *dev_id)
2182 struct qla_hw_data *ha;
2183 struct rsp_que *rsp;
2184 struct device_reg_24xx __iomem *reg;
2185 struct scsi_qla_host *vha;
2186 unsigned long flags;
2188 rsp = (struct rsp_que *) dev_id;
2191 "%s(): NULL response queue pointer\n", __func__);
2195 reg = &ha->iobase->isp24;
2197 spin_lock_irqsave(&ha->hardware_lock, flags);
2199 vha = pci_get_drvdata(ha->pdev);
2200 qla24xx_process_response_queue(vha, rsp);
2201 if (!ha->flags.disable_msix_handshake) {
2202 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2203 RD_REG_DWORD_RELAXED(®->hccr);
2205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2211 qla25xx_msix_rsp_q(int irq, void *dev_id)
2213 struct qla_hw_data *ha;
2214 struct rsp_que *rsp;
2215 struct device_reg_24xx __iomem *reg;
2216 unsigned long flags;
2218 rsp = (struct rsp_que *) dev_id;
2221 "%s(): NULL response queue pointer\n", __func__);
2226 /* Clear the interrupt, if enabled, for this response queue */
2227 if (rsp->options & ~BIT_6) {
2228 reg = &ha->iobase->isp24;
2229 spin_lock_irqsave(&ha->hardware_lock, flags);
2230 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2231 RD_REG_DWORD_RELAXED(®->hccr);
2232 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2234 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2240 qla24xx_msix_default(int irq, void *dev_id)
2242 scsi_qla_host_t *vha;
2243 struct qla_hw_data *ha;
2244 struct rsp_que *rsp;
2245 struct device_reg_24xx __iomem *reg;
2250 unsigned long flags;
2252 rsp = (struct rsp_que *) dev_id;
2255 "%s(): NULL response queue pointer\n", __func__));
2259 reg = &ha->iobase->isp24;
2262 spin_lock_irqsave(&ha->hardware_lock, flags);
2263 vha = pci_get_drvdata(ha->pdev);
2265 stat = RD_REG_DWORD(®->host_status);
2266 if (stat & HSRX_RISC_PAUSED) {
2267 if (unlikely(pci_channel_offline(ha->pdev)))
2270 hccr = RD_REG_DWORD(®->hccr);
2272 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2273 "Dumping firmware!\n", hccr);
2275 qla2xxx_check_risc_status(vha);
2277 ha->isp_ops->fw_dump(vha, 1);
2278 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2280 } else if ((stat & HSRX_RISC_INT) == 0)
2283 switch (stat & 0xff) {
2288 qla24xx_mbx_completion(vha, MSW(stat));
2289 status |= MBX_INTERRUPT;
2294 mb[1] = RD_REG_WORD(®->mailbox1);
2295 mb[2] = RD_REG_WORD(®->mailbox2);
2296 mb[3] = RD_REG_WORD(®->mailbox3);
2297 qla2x00_async_event(vha, rsp, mb);
2301 qla24xx_process_response_queue(vha, rsp);
2304 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2306 vha->host_no, stat & 0xff));
2309 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
2311 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2313 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2314 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2315 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2316 complete(&ha->mbx_intr_comp);
2321 /* Interrupt handling helpers. */
2323 struct qla_init_msix_entry {
2325 irq_handler_t handler;
2328 static struct qla_init_msix_entry msix_entries[3] = {
2329 { "qla2xxx (default)", qla24xx_msix_default },
2330 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2331 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2334 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2335 { "qla2xxx (default)", qla82xx_msix_default },
2336 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2340 qla24xx_disable_msix(struct qla_hw_data *ha)
2343 struct qla_msix_entry *qentry;
2345 for (i = 0; i < ha->msix_count; i++) {
2346 qentry = &ha->msix_entries[i];
2347 if (qentry->have_irq)
2348 free_irq(qentry->vector, qentry->rsp);
2350 pci_disable_msix(ha->pdev);
2351 kfree(ha->msix_entries);
2352 ha->msix_entries = NULL;
2353 ha->flags.msix_enabled = 0;
2357 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2359 #define MIN_MSIX_COUNT 2
2361 struct msix_entry *entries;
2362 struct qla_msix_entry *qentry;
2364 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2369 for (i = 0; i < ha->msix_count; i++)
2370 entries[i].entry = i;
2372 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2374 if (ret < MIN_MSIX_COUNT)
2377 qla_printk(KERN_WARNING, ha,
2378 "MSI-X: Failed to enable support -- %d/%d\n"
2379 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2380 ha->msix_count = ret;
2381 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2384 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2385 " support, giving up -- %d/%d\n",
2386 ha->msix_count, ret);
2389 ha->max_rsp_queues = ha->msix_count - 1;
2391 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2392 ha->msix_count, GFP_KERNEL);
2393 if (!ha->msix_entries) {
2397 ha->flags.msix_enabled = 1;
2399 for (i = 0; i < ha->msix_count; i++) {
2400 qentry = &ha->msix_entries[i];
2401 qentry->vector = entries[i].vector;
2402 qentry->entry = entries[i].entry;
2403 qentry->have_irq = 0;
2407 /* Enable MSI-X vectors for the base queue */
2408 for (i = 0; i < 2; i++) {
2409 qentry = &ha->msix_entries[i];
2410 if (IS_QLA82XX(ha)) {
2411 ret = request_irq(qentry->vector,
2412 qla82xx_msix_entries[i].handler,
2413 0, qla82xx_msix_entries[i].name, rsp);
2415 ret = request_irq(qentry->vector,
2416 msix_entries[i].handler,
2417 0, msix_entries[i].name, rsp);
2420 qla_printk(KERN_WARNING, ha,
2421 "MSI-X: Unable to register handler -- %x/%d.\n",
2422 qentry->vector, ret);
2423 qla24xx_disable_msix(ha);
2427 qentry->have_irq = 1;
2432 /* Enable MSI-X vector for response queue update for queue 0 */
2433 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2442 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2445 device_reg_t __iomem *reg = ha->iobase;
2447 /* If possible, enable MSI-X. */
2448 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2449 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2452 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2453 (ha->pdev->subsystem_device == 0x7040 ||
2454 ha->pdev->subsystem_device == 0x7041 ||
2455 ha->pdev->subsystem_device == 0x1705)) {
2456 DEBUG2(qla_printk(KERN_WARNING, ha,
2457 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n",
2458 ha->pdev->subsystem_vendor,
2459 ha->pdev->subsystem_device));
2463 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2464 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2465 DEBUG2(qla_printk(KERN_WARNING, ha,
2466 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2467 ha->pdev->revision, ha->fw_attributes));
2471 ret = qla24xx_enable_msix(ha, rsp);
2473 DEBUG2(qla_printk(KERN_INFO, ha,
2474 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2475 ha->fw_attributes));
2476 goto clear_risc_ints;
2478 qla_printk(KERN_WARNING, ha,
2479 "MSI-X: Falling back-to MSI mode -- %d.\n", ret);
2482 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2486 ret = pci_enable_msi(ha->pdev);
2488 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2489 ha->flags.msi_enabled = 1;
2491 qla_printk(KERN_WARNING, ha,
2492 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2495 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2496 IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp);
2498 qla_printk(KERN_WARNING, ha,
2499 "Failed to reserve interrupt %d already in use.\n",
2503 ha->flags.inta_enabled = 1;
2507 * FIXME: Noted that 8014s were being dropped during NK testing.
2508 * Timing deltas during MSI-X/INTa transitions?
2510 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2512 spin_lock_irq(&ha->hardware_lock);
2513 if (IS_FWI2_CAPABLE(ha)) {
2514 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT);
2515 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT);
2517 WRT_REG_WORD(®->isp.semaphore, 0);
2518 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT);
2519 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT);
2521 spin_unlock_irq(&ha->hardware_lock);
2528 qla2x00_free_irqs(scsi_qla_host_t *vha)
2530 struct qla_hw_data *ha = vha->hw;
2531 struct rsp_que *rsp = ha->rsp_q_map[0];
2533 if (ha->flags.msix_enabled)
2534 qla24xx_disable_msix(ha);
2535 else if (ha->flags.msi_enabled) {
2536 free_irq(ha->pdev->irq, rsp);
2537 pci_disable_msi(ha->pdev);
2539 free_irq(ha->pdev->irq, rsp);
2543 int qla25xx_request_irq(struct rsp_que *rsp)
2545 struct qla_hw_data *ha = rsp->hw;
2546 struct qla_init_msix_entry *intr = &msix_entries[2];
2547 struct qla_msix_entry *msix = rsp->msix;
2550 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2552 qla_printk(KERN_WARNING, ha,
2553 "MSI-X: Unable to register handler -- %x/%d.\n",