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