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
*, uint32_t);
14 static void qla2x00_status_entry(scsi_qla_host_t
*, void *);
15 static void qla2x00_status_cont_entry(scsi_qla_host_t
*, sts_cont_entry_t
*);
16 static void qla2x00_error_entry(scsi_qla_host_t
*, sts_entry_t
*);
19 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
21 * @dev_id: SCSI driver HA context
23 * Called by system whenever the host adapter generates an interrupt.
25 * Returns handled flag.
28 qla2100_intr_handler(int irq
, void *dev_id
)
31 struct device_reg_2xxx __iomem
*reg
;
37 ha
= (scsi_qla_host_t
*) dev_id
;
40 "%s(): NULL host pointer\n", __func__
);
44 reg
= &ha
->iobase
->isp
;
47 spin_lock(&ha
->hardware_lock
);
48 for (iter
= 50; iter
--; ) {
49 hccr
= RD_REG_WORD(®
->hccr
);
50 if (hccr
& HCCR_RISC_PAUSE
) {
51 if (pci_channel_offline(ha
->pdev
))
55 * Issue a "HARD" reset in order for the RISC interrupt
56 * bit to be cleared. Schedule a big hammmer to get
57 * out of the RISC PAUSED state.
59 WRT_REG_WORD(®
->hccr
, HCCR_RESET_RISC
);
60 RD_REG_WORD(®
->hccr
);
62 ha
->isp_ops
->fw_dump(ha
, 1);
63 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
65 } else if ((RD_REG_WORD(®
->istatus
) & ISR_RISC_INT
) == 0)
68 if (RD_REG_WORD(®
->semaphore
) & BIT_0
) {
69 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
70 RD_REG_WORD(®
->hccr
);
72 /* Get mailbox data. */
73 mb
[0] = RD_MAILBOX_REG(ha
, reg
, 0);
74 if (mb
[0] > 0x3fff && mb
[0] < 0x8000) {
75 qla2x00_mbx_completion(ha
, mb
[0]);
76 status
|= MBX_INTERRUPT
;
77 } else if (mb
[0] > 0x7fff && mb
[0] < 0xc000) {
78 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
79 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
80 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
81 qla2x00_async_event(ha
, mb
);
84 DEBUG2(printk("scsi(%ld): Unrecognized "
85 "interrupt type (%d).\n",
88 /* Release mailbox registers. */
89 WRT_REG_WORD(®
->semaphore
, 0);
90 RD_REG_WORD(®
->semaphore
);
92 qla2x00_process_response_queue(ha
);
94 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
95 RD_REG_WORD(®
->hccr
);
98 spin_unlock(&ha
->hardware_lock
);
100 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
101 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
102 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
103 complete(&ha
->mbx_intr_comp
);
106 return (IRQ_HANDLED
);
110 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
112 * @dev_id: SCSI driver HA context
114 * Called by system whenever the host adapter generates an interrupt.
116 * Returns handled flag.
119 qla2300_intr_handler(int irq
, void *dev_id
)
122 struct device_reg_2xxx __iomem
*reg
;
129 ha
= (scsi_qla_host_t
*) dev_id
;
132 "%s(): NULL host pointer\n", __func__
);
136 reg
= &ha
->iobase
->isp
;
139 spin_lock(&ha
->hardware_lock
);
140 for (iter
= 50; iter
--; ) {
141 stat
= RD_REG_DWORD(®
->u
.isp2300
.host_status
);
142 if (stat
& HSR_RISC_PAUSED
) {
143 if (pci_channel_offline(ha
->pdev
))
146 hccr
= RD_REG_WORD(®
->hccr
);
147 if (hccr
& (BIT_15
| BIT_13
| BIT_11
| BIT_8
))
148 qla_printk(KERN_INFO
, ha
, "Parity error -- "
149 "HCCR=%x, Dumping firmware!\n", hccr
);
151 qla_printk(KERN_INFO
, ha
, "RISC paused -- "
152 "HCCR=%x, Dumping firmware!\n", hccr
);
155 * Issue a "HARD" reset in order for the RISC
156 * interrupt bit to be cleared. Schedule a big
157 * hammmer to get out of the RISC PAUSED state.
159 WRT_REG_WORD(®
->hccr
, HCCR_RESET_RISC
);
160 RD_REG_WORD(®
->hccr
);
162 ha
->isp_ops
->fw_dump(ha
, 1);
163 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
165 } else if ((stat
& HSR_RISC_INT
) == 0)
168 switch (stat
& 0xff) {
173 qla2x00_mbx_completion(ha
, MSW(stat
));
174 status
|= MBX_INTERRUPT
;
176 /* Release mailbox registers. */
177 WRT_REG_WORD(®
->semaphore
, 0);
181 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
182 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
183 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
184 qla2x00_async_event(ha
, mb
);
187 qla2x00_process_response_queue(ha
);
190 mb
[0] = MBA_CMPLT_1_16BIT
;
192 qla2x00_async_event(ha
, mb
);
195 mb
[0] = MBA_SCSI_COMPLETION
;
197 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
198 qla2x00_async_event(ha
, mb
);
201 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
203 ha
->host_no
, stat
& 0xff));
206 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
207 RD_REG_WORD_RELAXED(®
->hccr
);
209 spin_unlock(&ha
->hardware_lock
);
211 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
212 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
213 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
214 complete(&ha
->mbx_intr_comp
);
217 return (IRQ_HANDLED
);
221 * qla2x00_mbx_completion() - Process mailbox command completions.
222 * @ha: SCSI driver HA context
223 * @mb0: Mailbox0 register
226 qla2x00_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
229 uint16_t __iomem
*wptr
;
230 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
232 /* Load return mailbox registers. */
233 ha
->flags
.mbox_int
= 1;
234 ha
->mailbox_out
[0] = mb0
;
235 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 1);
237 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
238 if (IS_QLA2200(ha
) && cnt
== 8)
239 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 8);
240 if (cnt
== 4 || cnt
== 5)
241 ha
->mailbox_out
[cnt
] = qla2x00_debounce_register(wptr
);
243 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
249 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
250 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
252 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
253 __func__
, ha
->host_no
));
258 * qla2x00_async_event() - Process aynchronous events.
259 * @ha: SCSI driver HA context
260 * @mb: Mailbox registers (0 - 3)
263 qla2x00_async_event(scsi_qla_host_t
*ha
, uint16_t *mb
)
266 static char *link_speeds
[5] = { "1", "2", "?", "4", "8" };
271 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
272 uint32_t rscn_entry
, host_pid
;
273 uint8_t rscn_queue_index
;
276 /* Setup to process RIO completion. */
279 case MBA_SCSI_COMPLETION
:
280 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
283 case MBA_CMPLT_1_16BIT
:
286 mb
[0] = MBA_SCSI_COMPLETION
;
288 case MBA_CMPLT_2_16BIT
:
292 mb
[0] = MBA_SCSI_COMPLETION
;
294 case MBA_CMPLT_3_16BIT
:
299 mb
[0] = MBA_SCSI_COMPLETION
;
301 case MBA_CMPLT_4_16BIT
:
305 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
307 mb
[0] = MBA_SCSI_COMPLETION
;
309 case MBA_CMPLT_5_16BIT
:
313 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
314 handles
[4] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 7);
316 mb
[0] = MBA_SCSI_COMPLETION
;
318 case MBA_CMPLT_2_32BIT
:
319 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
320 handles
[1] = le32_to_cpu(
321 ((uint32_t)(RD_MAILBOX_REG(ha
, reg
, 7) << 16)) |
322 RD_MAILBOX_REG(ha
, reg
, 6));
324 mb
[0] = MBA_SCSI_COMPLETION
;
331 case MBA_SCSI_COMPLETION
: /* Fast Post */
332 if (!ha
->flags
.online
)
335 for (cnt
= 0; cnt
< handle_cnt
; cnt
++)
336 qla2x00_process_completed_request(ha
, handles
[cnt
]);
339 case MBA_RESET
: /* Reset */
340 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha
->host_no
));
342 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
345 case MBA_SYSTEM_ERR
: /* System Error */
346 qla_printk(KERN_INFO
, ha
,
347 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
348 mb
[1], mb
[2], mb
[3]);
350 qla2x00_post_hwe_work(ha
, mb
[0], mb
[1], mb
[2], mb
[3]);
351 ha
->isp_ops
->fw_dump(ha
, 1);
353 if (IS_FWI2_CAPABLE(ha
)) {
354 if (mb
[1] == 0 && mb
[2] == 0) {
355 qla_printk(KERN_ERR
, ha
,
356 "Unrecoverable Hardware Error: adapter "
357 "marked OFFLINE!\n");
358 ha
->flags
.online
= 0;
360 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
361 } else if (mb
[1] == 0) {
362 qla_printk(KERN_INFO
, ha
,
363 "Unrecoverable Hardware Error: adapter marked "
365 ha
->flags
.online
= 0;
367 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
370 case MBA_REQ_TRANSFER_ERR
: /* Request Transfer Error */
371 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
373 qla_printk(KERN_WARNING
, ha
, "ISP Request Transfer Error.\n");
375 qla2x00_post_hwe_work(ha
, mb
[0], mb
[1], mb
[2], mb
[3]);
376 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
379 case MBA_RSP_TRANSFER_ERR
: /* Response Transfer Error */
380 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
382 qla_printk(KERN_WARNING
, ha
, "ISP Response Transfer Error.\n");
384 qla2x00_post_hwe_work(ha
, mb
[0], mb
[1], mb
[2], mb
[3]);
385 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
388 case MBA_WAKEUP_THRES
: /* Request Queue Wake-up */
389 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
393 case MBA_LIP_OCCURRED
: /* Loop Initialization Procedure */
394 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", ha
->host_no
,
396 qla_printk(KERN_INFO
, ha
, "LIP occurred (%x).\n", mb
[1]);
398 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
399 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
400 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
401 qla2x00_mark_all_devices_lost(ha
, 1);
405 atomic_set(&ha
->vp_state
, VP_FAILED
);
406 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
409 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
410 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
412 ha
->flags
.management_server_logged_in
= 0;
413 qla2x00_post_aen_work(ha
, FCH_EVT_LIP
, mb
[1]);
416 case MBA_LOOP_UP
: /* Loop Up Event */
417 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
418 link_speed
= link_speeds
[0];
419 ha
->link_data_rate
= PORT_SPEED_1GB
;
421 link_speed
= link_speeds
[LS_UNKNOWN
];
423 link_speed
= link_speeds
[mb
[1]];
424 ha
->link_data_rate
= mb
[1];
427 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
428 ha
->host_no
, link_speed
));
429 qla_printk(KERN_INFO
, ha
, "LOOP UP detected (%s Gbps).\n",
432 ha
->flags
.management_server_logged_in
= 0;
433 qla2x00_post_aen_work(ha
, FCH_EVT_LINKUP
, ha
->link_data_rate
);
436 case MBA_LOOP_DOWN
: /* Loop Down Event */
437 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
438 "(%x %x %x).\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
439 qla_printk(KERN_INFO
, ha
, "LOOP DOWN detected (%x %x %x).\n",
440 mb
[1], mb
[2], mb
[3]);
442 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
443 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
444 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
445 ha
->device_flags
|= DFLG_NO_CABLE
;
446 qla2x00_mark_all_devices_lost(ha
, 1);
450 atomic_set(&ha
->vp_state
, VP_FAILED
);
451 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
454 ha
->flags
.management_server_logged_in
= 0;
455 ha
->link_data_rate
= PORT_SPEED_UNKNOWN
;
456 qla2x00_post_aen_work(ha
, FCH_EVT_LINKDOWN
, 0);
459 case MBA_LIP_RESET
: /* LIP reset occurred */
460 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
461 ha
->host_no
, mb
[1]));
462 qla_printk(KERN_INFO
, ha
,
463 "LIP reset occurred (%x).\n", mb
[1]);
465 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
466 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
467 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
468 qla2x00_mark_all_devices_lost(ha
, 1);
472 atomic_set(&ha
->vp_state
, VP_FAILED
);
473 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
476 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
478 ha
->operating_mode
= LOOP
;
479 ha
->flags
.management_server_logged_in
= 0;
480 qla2x00_post_aen_work(ha
, FCH_EVT_LIPRESET
, mb
[1]);
483 case MBA_POINT_TO_POINT
: /* Point-to-Point */
487 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
491 * Until there's a transition from loop down to loop up, treat
492 * this as loop down only.
494 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
495 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
496 if (!atomic_read(&ha
->loop_down_timer
))
497 atomic_set(&ha
->loop_down_timer
,
499 qla2x00_mark_all_devices_lost(ha
, 1);
503 atomic_set(&ha
->vp_state
, VP_FAILED
);
504 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
507 if (!(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
508 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
510 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
511 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
513 ha
->flags
.gpsc_supported
= 1;
514 ha
->flags
.management_server_logged_in
= 0;
517 case MBA_CHG_IN_CONNECTION
: /* Change in connection mode */
521 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
524 qla_printk(KERN_INFO
, ha
,
525 "Configuration change detected: value=%x.\n", mb
[1]);
527 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
528 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
529 if (!atomic_read(&ha
->loop_down_timer
))
530 atomic_set(&ha
->loop_down_timer
,
532 qla2x00_mark_all_devices_lost(ha
, 1);
536 atomic_set(&ha
->vp_state
, VP_FAILED
);
537 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
540 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
541 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
544 case MBA_PORT_UPDATE
: /* Port database update */
546 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
547 * event etc. earlier indicating loop is down) then process
548 * it. Otherwise ignore it and Wait for RSCN to come in.
550 atomic_set(&ha
->loop_down_timer
, 0);
551 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
&&
552 atomic_read(&ha
->loop_state
) != LOOP_DEAD
) {
553 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
554 "ignored %04x/%04x/%04x.\n", ha
->host_no
, mb
[1],
559 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
561 DEBUG(printk(KERN_INFO
562 "scsi(%ld): Port database changed %04x %04x %04x.\n",
563 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
566 * Mark all devices as missing so we will login again.
568 atomic_set(&ha
->loop_state
, LOOP_UP
);
570 qla2x00_mark_all_devices_lost(ha
, 1);
572 ha
->flags
.rscn_queue_overflow
= 1;
574 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
575 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
578 case MBA_RSCN_UPDATE
: /* State Change Registration */
579 /* Check if the Vport has issued a SCR */
580 if (ha
->parent
&& test_bit(VP_SCR_NEEDED
, &ha
->vp_flags
))
582 /* Only handle SCNs for our Vport index. */
583 if (ha
->parent
&& ha
->vp_idx
!= (mb
[3] & 0xff))
586 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
588 DEBUG(printk(KERN_INFO
589 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
590 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
592 rscn_entry
= ((mb
[1] & 0xff) << 16) | mb
[2];
593 host_pid
= (ha
->d_id
.b
.domain
<< 16) | (ha
->d_id
.b
.area
<< 8) |
595 if (rscn_entry
== host_pid
) {
596 DEBUG(printk(KERN_INFO
597 "scsi(%ld): Ignoring RSCN update to local host "
599 ha
->host_no
, host_pid
));
603 /* Ignore reserved bits from RSCN-payload. */
604 rscn_entry
= ((mb
[1] & 0x3ff) << 16) | mb
[2];
605 rscn_queue_index
= ha
->rscn_in_ptr
+ 1;
606 if (rscn_queue_index
== MAX_RSCN_COUNT
)
607 rscn_queue_index
= 0;
608 if (rscn_queue_index
!= ha
->rscn_out_ptr
) {
609 ha
->rscn_queue
[ha
->rscn_in_ptr
] = rscn_entry
;
610 ha
->rscn_in_ptr
= rscn_queue_index
;
612 ha
->flags
.rscn_queue_overflow
= 1;
615 atomic_set(&ha
->loop_state
, LOOP_UPDATE
);
616 atomic_set(&ha
->loop_down_timer
, 0);
617 ha
->flags
.management_server_logged_in
= 0;
619 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
620 set_bit(RSCN_UPDATE
, &ha
->dpc_flags
);
621 qla2x00_post_aen_work(ha
, FCH_EVT_RSCN
, rscn_entry
);
624 /* case MBA_RIO_RESPONSE: */
625 case MBA_ZIO_RESPONSE
:
626 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
628 DEBUG(printk(KERN_INFO
629 "scsi(%ld): [R|Z]IO update completion.\n",
632 if (IS_FWI2_CAPABLE(ha
))
633 qla24xx_process_response_queue(ha
);
635 qla2x00_process_response_queue(ha
);
638 case MBA_DISCARD_RND_FRAME
:
639 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
640 "%04x.\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
643 case MBA_TRACE_NOTIFICATION
:
644 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
645 ha
->host_no
, mb
[1], mb
[2]));
648 case MBA_ISP84XX_ALERT
:
649 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
650 "%04x %04x %04x\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
652 spin_lock_irqsave(&ha
->cs84xx
->access_lock
, flags
);
654 case A84_PANIC_RECOVERY
:
655 qla_printk(KERN_INFO
, ha
, "Alert 84XX: panic recovery "
656 "%04x %04x\n", mb
[2], mb
[3]);
658 case A84_OP_LOGIN_COMPLETE
:
659 ha
->cs84xx
->op_fw_version
= mb
[3] << 16 | mb
[2];
660 DEBUG2(qla_printk(KERN_INFO
, ha
, "Alert 84XX:"
661 "firmware version %x\n", ha
->cs84xx
->op_fw_version
));
663 case A84_DIAG_LOGIN_COMPLETE
:
664 ha
->cs84xx
->diag_fw_version
= mb
[3] << 16 | mb
[2];
665 DEBUG2(qla_printk(KERN_INFO
, ha
, "Alert 84XX:"
666 "diagnostic firmware version %x\n",
667 ha
->cs84xx
->diag_fw_version
));
669 case A84_GOLD_LOGIN_COMPLETE
:
670 ha
->cs84xx
->diag_fw_version
= mb
[3] << 16 | mb
[2];
671 ha
->cs84xx
->fw_update
= 1;
672 DEBUG2(qla_printk(KERN_INFO
, ha
, "Alert 84XX: gold "
673 "firmware version %x\n",
674 ha
->cs84xx
->gold_fw_version
));
677 qla_printk(KERN_ERR
, ha
,
678 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
679 mb
[1], mb
[2], mb
[3]);
681 spin_unlock_irqrestore(&ha
->cs84xx
->access_lock
, flags
);
685 if (!ha
->parent
&& ha
->num_vhosts
)
686 qla2x00_alert_all_vps(ha
, mb
);
690 qla2x00_adjust_sdev_qdepth_up(struct scsi_device
*sdev
, void *data
)
692 fc_port_t
*fcport
= data
;
694 if (fcport
->ha
->max_q_depth
<= sdev
->queue_depth
)
697 if (sdev
->ordered_tags
)
698 scsi_adjust_queue_depth(sdev
, MSG_ORDERED_TAG
,
699 sdev
->queue_depth
+ 1);
701 scsi_adjust_queue_depth(sdev
, MSG_SIMPLE_TAG
,
702 sdev
->queue_depth
+ 1);
704 fcport
->last_ramp_up
= jiffies
;
706 DEBUG2(qla_printk(KERN_INFO
, fcport
->ha
,
707 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
708 fcport
->ha
->host_no
, sdev
->channel
, sdev
->id
, sdev
->lun
,
713 qla2x00_adjust_sdev_qdepth_down(struct scsi_device
*sdev
, void *data
)
715 fc_port_t
*fcport
= data
;
717 if (!scsi_track_queue_full(sdev
, sdev
->queue_depth
- 1))
720 DEBUG2(qla_printk(KERN_INFO
, fcport
->ha
,
721 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
722 fcport
->ha
->host_no
, sdev
->channel
, sdev
->id
, sdev
->lun
,
727 qla2x00_ramp_up_queue_depth(scsi_qla_host_t
*ha
, srb_t
*sp
)
730 struct scsi_device
*sdev
;
732 sdev
= sp
->cmd
->device
;
733 if (sdev
->queue_depth
>= ha
->max_q_depth
)
737 if (time_before(jiffies
,
738 fcport
->last_ramp_up
+ ql2xqfullrampup
* HZ
))
740 if (time_before(jiffies
,
741 fcport
->last_queue_full
+ ql2xqfullrampup
* HZ
))
744 starget_for_each_device(sdev
->sdev_target
, fcport
,
745 qla2x00_adjust_sdev_qdepth_up
);
749 * qla2x00_process_completed_request() - Process a Fast Post response.
750 * @ha: SCSI driver HA context
754 qla2x00_process_completed_request(struct scsi_qla_host
*ha
, uint32_t index
)
758 /* Validate handle. */
759 if (index
>= MAX_OUTSTANDING_COMMANDS
) {
760 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
761 ha
->host_no
, index
));
762 qla_printk(KERN_WARNING
, ha
,
763 "Invalid SCSI completion handle %d.\n", index
);
765 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
769 sp
= ha
->outstanding_cmds
[index
];
771 /* Free outstanding command slot. */
772 ha
->outstanding_cmds
[index
] = NULL
;
774 CMD_COMPL_STATUS(sp
->cmd
) = 0L;
775 CMD_SCSI_STATUS(sp
->cmd
) = 0L;
777 /* Save ISP completion status */
778 sp
->cmd
->result
= DID_OK
<< 16;
780 qla2x00_ramp_up_queue_depth(ha
, sp
);
781 qla2x00_sp_compl(ha
, sp
);
783 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
785 qla_printk(KERN_WARNING
, ha
,
786 "Invalid ISP SCSI completion handle\n");
788 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
793 * qla2x00_process_response_queue() - Process response queue entries.
794 * @ha: SCSI driver HA context
797 qla2x00_process_response_queue(struct scsi_qla_host
*ha
)
799 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
804 if (!ha
->flags
.online
)
807 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
808 pkt
= (sts_entry_t
*)ha
->response_ring_ptr
;
810 ha
->rsp_ring_index
++;
811 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
812 ha
->rsp_ring_index
= 0;
813 ha
->response_ring_ptr
= ha
->response_ring
;
815 ha
->response_ring_ptr
++;
818 if (pkt
->entry_status
!= 0) {
819 DEBUG3(printk(KERN_INFO
820 "scsi(%ld): Process error entry.\n", ha
->host_no
));
822 qla2x00_error_entry(ha
, pkt
);
823 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
828 switch (pkt
->entry_type
) {
830 qla2x00_status_entry(ha
, pkt
);
833 handle_cnt
= ((sts21_entry_t
*)pkt
)->handle_count
;
834 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
835 qla2x00_process_completed_request(ha
,
836 ((sts21_entry_t
*)pkt
)->handle
[cnt
]);
840 handle_cnt
= ((sts22_entry_t
*)pkt
)->handle_count
;
841 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
842 qla2x00_process_completed_request(ha
,
843 ((sts22_entry_t
*)pkt
)->handle
[cnt
]);
846 case STATUS_CONT_TYPE
:
847 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
850 /* Type Not Supported. */
851 DEBUG4(printk(KERN_WARNING
852 "scsi(%ld): Received unknown response pkt type %x "
853 "entry status=%x.\n",
854 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
857 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
861 /* Adjust ring index */
862 WRT_REG_WORD(ISP_RSP_Q_OUT(ha
, reg
), ha
->rsp_ring_index
);
866 qla2x00_handle_sense(srb_t
*sp
, uint8_t *sense_data
, uint32_t sense_len
)
868 struct scsi_cmnd
*cp
= sp
->cmd
;
870 if (sense_len
>= SCSI_SENSE_BUFFERSIZE
)
871 sense_len
= SCSI_SENSE_BUFFERSIZE
;
873 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
874 sp
->request_sense_length
= sense_len
;
875 sp
->request_sense_ptr
= cp
->sense_buffer
;
876 if (sp
->request_sense_length
> 32)
879 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
881 sp
->request_sense_ptr
+= sense_len
;
882 sp
->request_sense_length
-= sense_len
;
883 if (sp
->request_sense_length
!= 0)
884 sp
->fcport
->ha
->status_srb
= sp
;
886 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
887 "cmd=%p pid=%ld\n", __func__
, sp
->fcport
->ha
->host_no
,
888 cp
->device
->channel
, cp
->device
->id
, cp
->device
->lun
, cp
,
891 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
892 CMD_ACTUAL_SNSLEN(cp
)));
896 * qla2x00_status_entry() - Process a Status IOCB entry.
897 * @ha: SCSI driver HA context
898 * @pkt: Entry pointer
901 qla2x00_status_entry(scsi_qla_host_t
*ha
, void *pkt
)
905 struct scsi_cmnd
*cp
;
907 struct sts_entry_24xx
*sts24
;
908 uint16_t comp_status
;
909 uint16_t scsi_status
;
910 uint8_t lscsi_status
;
912 uint32_t sense_len
, rsp_info_len
, resid_len
, fw_resid_len
;
913 uint8_t *rsp_info
, *sense_data
;
915 sts
= (sts_entry_t
*) pkt
;
916 sts24
= (struct sts_entry_24xx
*) pkt
;
917 if (IS_FWI2_CAPABLE(ha
)) {
918 comp_status
= le16_to_cpu(sts24
->comp_status
);
919 scsi_status
= le16_to_cpu(sts24
->scsi_status
) & SS_MASK
;
921 comp_status
= le16_to_cpu(sts
->comp_status
);
922 scsi_status
= le16_to_cpu(sts
->scsi_status
) & SS_MASK
;
925 /* Fast path completion. */
926 if (comp_status
== CS_COMPLETE
&& scsi_status
== 0) {
927 qla2x00_process_completed_request(ha
, sts
->handle
);
932 /* Validate handle. */
933 if (sts
->handle
< MAX_OUTSTANDING_COMMANDS
) {
934 sp
= ha
->outstanding_cmds
[sts
->handle
];
935 ha
->outstanding_cmds
[sts
->handle
] = NULL
;
940 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
942 qla_printk(KERN_WARNING
, ha
, "Status Entry invalid handle.\n");
944 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
945 qla2xxx_wake_dpc(ha
);
950 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
951 "pkt->handle=%d sp=%p.\n", ha
->host_no
, sts
->handle
, sp
));
952 qla_printk(KERN_WARNING
, ha
,
953 "Command is NULL: already returned to OS (sp=%p)\n", sp
);
958 lscsi_status
= scsi_status
& STATUS_MASK
;
959 CMD_ENTRY_STATUS(cp
) = sts
->entry_status
;
960 CMD_COMPL_STATUS(cp
) = comp_status
;
961 CMD_SCSI_STATUS(cp
) = scsi_status
;
965 sense_len
= rsp_info_len
= resid_len
= fw_resid_len
= 0;
966 if (IS_FWI2_CAPABLE(ha
)) {
967 sense_len
= le32_to_cpu(sts24
->sense_len
);
968 rsp_info_len
= le32_to_cpu(sts24
->rsp_data_len
);
969 resid_len
= le32_to_cpu(sts24
->rsp_residual_count
);
970 fw_resid_len
= le32_to_cpu(sts24
->residual_len
);
971 rsp_info
= sts24
->data
;
972 sense_data
= sts24
->data
;
973 host_to_fcp_swap(sts24
->data
, sizeof(sts24
->data
));
975 sense_len
= le16_to_cpu(sts
->req_sense_length
);
976 rsp_info_len
= le16_to_cpu(sts
->rsp_info_len
);
977 resid_len
= le32_to_cpu(sts
->residual_length
);
978 rsp_info
= sts
->rsp_info
;
979 sense_data
= sts
->req_sense_data
;
982 /* Check for any FCP transport errors. */
983 if (scsi_status
& SS_RESPONSE_INFO_LEN_VALID
) {
984 /* Sense data lies beyond any FCP RESPONSE data. */
985 if (IS_FWI2_CAPABLE(ha
))
986 sense_data
+= rsp_info_len
;
987 if (rsp_info_len
> 3 && rsp_info
[3]) {
988 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
989 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
990 "retrying command\n", ha
->host_no
,
991 cp
->device
->channel
, cp
->device
->id
,
992 cp
->device
->lun
, rsp_info_len
, rsp_info
[0],
993 rsp_info
[1], rsp_info
[2], rsp_info
[3], rsp_info
[4],
994 rsp_info
[5], rsp_info
[6], rsp_info
[7]));
996 cp
->result
= DID_BUS_BUSY
<< 16;
997 qla2x00_sp_compl(ha
, sp
);
1002 /* Check for overrun. */
1003 if (IS_FWI2_CAPABLE(ha
) && comp_status
== CS_COMPLETE
&&
1004 scsi_status
& SS_RESIDUAL_OVER
)
1005 comp_status
= CS_DATA_OVERRUN
;
1008 * Based on Host and scsi status generate status code for Linux
1010 switch (comp_status
) {
1013 if (scsi_status
== 0) {
1014 cp
->result
= DID_OK
<< 16;
1017 if (scsi_status
& (SS_RESIDUAL_UNDER
| SS_RESIDUAL_OVER
)) {
1019 scsi_set_resid(cp
, resid
);
1020 CMD_RESID_LEN(cp
) = resid
;
1022 if (!lscsi_status
&&
1023 ((unsigned)(scsi_bufflen(cp
) - resid
) <
1025 qla_printk(KERN_INFO
, ha
,
1026 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1027 "detected (%x of %x bytes)...returning "
1028 "error status.\n", ha
->host_no
,
1029 cp
->device
->channel
, cp
->device
->id
,
1030 cp
->device
->lun
, resid
,
1033 cp
->result
= DID_ERROR
<< 16;
1037 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1039 if (lscsi_status
== SAM_STAT_TASK_SET_FULL
) {
1040 DEBUG2(printk(KERN_INFO
1041 "scsi(%ld): QUEUE FULL status detected "
1042 "0x%x-0x%x.\n", ha
->host_no
, comp_status
,
1045 /* Adjust queue depth for all luns on the port. */
1046 fcport
->last_queue_full
= jiffies
;
1047 starget_for_each_device(cp
->device
->sdev_target
,
1048 fcport
, qla2x00_adjust_sdev_qdepth_down
);
1051 if (lscsi_status
!= SS_CHECK_CONDITION
)
1054 memset(cp
->sense_buffer
, 0, SCSI_SENSE_BUFFERSIZE
);
1055 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
1058 qla2x00_handle_sense(sp
, sense_data
, sense_len
);
1061 case CS_DATA_UNDERRUN
:
1063 /* Use F/W calculated residual length. */
1064 if (IS_FWI2_CAPABLE(ha
)) {
1065 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
1067 } else if (resid
!= fw_resid_len
) {
1068 scsi_status
&= ~SS_RESIDUAL_UNDER
;
1071 resid
= fw_resid_len
;
1074 if (scsi_status
& SS_RESIDUAL_UNDER
) {
1075 scsi_set_resid(cp
, resid
);
1076 CMD_RESID_LEN(cp
) = resid
;
1078 DEBUG2(printk(KERN_INFO
1079 "scsi(%ld:%d:%d) UNDERRUN status detected "
1080 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
1081 "os_underflow=0x%x\n", ha
->host_no
,
1082 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1083 scsi_status
, resid_len
, resid
, cp
->cmnd
[0],
1089 * Check to see if SCSI Status is non zero. If so report SCSI
1092 if (lscsi_status
!= 0) {
1093 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1095 if (lscsi_status
== SAM_STAT_TASK_SET_FULL
) {
1096 DEBUG2(printk(KERN_INFO
1097 "scsi(%ld): QUEUE FULL status detected "
1098 "0x%x-0x%x.\n", ha
->host_no
, comp_status
,
1102 * Adjust queue depth for all luns on the
1105 fcport
->last_queue_full
= jiffies
;
1106 starget_for_each_device(
1107 cp
->device
->sdev_target
, fcport
,
1108 qla2x00_adjust_sdev_qdepth_down
);
1111 if (lscsi_status
!= SS_CHECK_CONDITION
)
1114 memset(cp
->sense_buffer
, 0, SCSI_SENSE_BUFFERSIZE
);
1115 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
1118 qla2x00_handle_sense(sp
, sense_data
, sense_len
);
1121 * If RISC reports underrun and target does not report
1122 * it then we must have a lost frame, so tell upper
1123 * layer to retry it by reporting a bus busy.
1125 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
1126 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1127 "frame(s) detected (%x of %x bytes)..."
1128 "retrying command.\n", ha
->host_no
,
1129 cp
->device
->channel
, cp
->device
->id
,
1130 cp
->device
->lun
, resid
,
1133 cp
->result
= DID_BUS_BUSY
<< 16;
1137 /* Handle mid-layer underflow */
1138 if ((unsigned)(scsi_bufflen(cp
) - resid
) <
1140 qla_printk(KERN_INFO
, ha
,
1141 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1142 "detected (%x of %x bytes)...returning "
1143 "error status.\n", ha
->host_no
,
1144 cp
->device
->channel
, cp
->device
->id
,
1145 cp
->device
->lun
, resid
,
1148 cp
->result
= DID_ERROR
<< 16;
1152 /* Everybody online, looking good... */
1153 cp
->result
= DID_OK
<< 16;
1157 case CS_DATA_OVERRUN
:
1158 DEBUG2(printk(KERN_INFO
1159 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1160 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
1162 DEBUG2(printk(KERN_INFO
1163 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1164 cp
->cmnd
[0], cp
->cmnd
[1], cp
->cmnd
[2], cp
->cmnd
[3],
1165 cp
->cmnd
[4], cp
->cmnd
[5]));
1166 DEBUG2(printk(KERN_INFO
1167 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1169 cp
->serial_number
, scsi_bufflen(cp
), resid_len
));
1171 cp
->result
= DID_ERROR
<< 16;
1174 case CS_PORT_LOGGED_OUT
:
1175 case CS_PORT_CONFIG_CHG
:
1178 case CS_PORT_UNAVAILABLE
:
1180 * If the port is in Target Down state, return all IOs for this
1181 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1184 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1185 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1186 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
,
1187 cp
->serial_number
, comp_status
,
1188 atomic_read(&fcport
->state
)));
1191 * We are going to have the fc class block the rport
1192 * while we try to recover so instruct the mid layer
1193 * to requeue until the class decides how to handle this.
1195 cp
->result
= DID_TRANSPORT_DISRUPTED
<< 16;
1196 if (atomic_read(&fcport
->state
) == FCS_ONLINE
)
1197 qla2x00_mark_device_lost(fcport
->ha
, fcport
, 1, 1);
1201 DEBUG2(printk(KERN_INFO
1202 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1203 ha
->host_no
, comp_status
, scsi_status
));
1205 cp
->result
= DID_RESET
<< 16;
1210 * hv2.19.12 - DID_ABORT does not retry the request if we
1211 * aborted this request then abort otherwise it must be a
1214 DEBUG2(printk(KERN_INFO
1215 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1216 ha
->host_no
, comp_status
, scsi_status
));
1218 cp
->result
= DID_RESET
<< 16;
1223 * We are going to have the fc class block the rport
1224 * while we try to recover so instruct the mid layer
1225 * to requeue until the class decides how to handle this.
1227 cp
->result
= DID_TRANSPORT_DISRUPTED
<< 16;
1229 if (IS_FWI2_CAPABLE(ha
)) {
1230 DEBUG2(printk(KERN_INFO
1231 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1232 "0x%x-0x%x\n", ha
->host_no
, cp
->device
->channel
,
1233 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1237 DEBUG2(printk(KERN_INFO
1238 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1239 "sflags=%x.\n", ha
->host_no
, cp
->device
->channel
,
1240 cp
->device
->id
, cp
->device
->lun
, comp_status
, scsi_status
,
1241 le16_to_cpu(sts
->status_flags
)));
1243 /* Check to see if logout occurred. */
1244 if ((le16_to_cpu(sts
->status_flags
) & SF_LOGOUT_SENT
))
1245 qla2x00_mark_device_lost(fcport
->ha
, fcport
, 1, 1);
1249 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1250 "0x%x-0x%x.\n", ha
->host_no
, comp_status
, scsi_status
));
1251 qla_printk(KERN_INFO
, ha
,
1252 "Unknown status detected 0x%x-0x%x.\n",
1253 comp_status
, scsi_status
);
1255 cp
->result
= DID_ERROR
<< 16;
1259 /* Place command on done queue. */
1260 if (ha
->status_srb
== NULL
)
1261 qla2x00_sp_compl(ha
, sp
);
1265 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1266 * @ha: SCSI driver HA context
1267 * @pkt: Entry pointer
1269 * Extended sense data.
1272 qla2x00_status_cont_entry(scsi_qla_host_t
*ha
, sts_cont_entry_t
*pkt
)
1274 uint8_t sense_sz
= 0;
1275 srb_t
*sp
= ha
->status_srb
;
1276 struct scsi_cmnd
*cp
;
1278 if (sp
!= NULL
&& sp
->request_sense_length
!= 0) {
1281 DEBUG2(printk("%s(): Cmd already returned back to OS "
1282 "sp=%p.\n", __func__
, sp
));
1283 qla_printk(KERN_INFO
, ha
,
1284 "cmd is NULL: already returned to OS (sp=%p)\n",
1287 ha
->status_srb
= NULL
;
1291 if (sp
->request_sense_length
> sizeof(pkt
->data
)) {
1292 sense_sz
= sizeof(pkt
->data
);
1294 sense_sz
= sp
->request_sense_length
;
1297 /* Move sense data. */
1298 if (IS_FWI2_CAPABLE(ha
))
1299 host_to_fcp_swap(pkt
->data
, sizeof(pkt
->data
));
1300 memcpy(sp
->request_sense_ptr
, pkt
->data
, sense_sz
);
1301 DEBUG5(qla2x00_dump_buffer(sp
->request_sense_ptr
, sense_sz
));
1303 sp
->request_sense_ptr
+= sense_sz
;
1304 sp
->request_sense_length
-= sense_sz
;
1306 /* Place command on done queue. */
1307 if (sp
->request_sense_length
== 0) {
1308 ha
->status_srb
= NULL
;
1309 qla2x00_sp_compl(ha
, sp
);
1315 * qla2x00_error_entry() - Process an error entry.
1316 * @ha: SCSI driver HA context
1317 * @pkt: Entry pointer
1320 qla2x00_error_entry(scsi_qla_host_t
*ha
, sts_entry_t
*pkt
)
1324 #if defined(QL_DEBUG_LEVEL_2)
1325 if (pkt
->entry_status
& RF_INV_E_ORDER
)
1326 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Order\n", __func__
);
1327 else if (pkt
->entry_status
& RF_INV_E_COUNT
)
1328 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Count\n", __func__
);
1329 else if (pkt
->entry_status
& RF_INV_E_PARAM
)
1330 qla_printk(KERN_ERR
, ha
,
1331 "%s: Invalid Entry Parameter\n", __func__
);
1332 else if (pkt
->entry_status
& RF_INV_E_TYPE
)
1333 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Type\n", __func__
);
1334 else if (pkt
->entry_status
& RF_BUSY
)
1335 qla_printk(KERN_ERR
, ha
, "%s: Busy\n", __func__
);
1337 qla_printk(KERN_ERR
, ha
, "%s: UNKNOWN flag error\n", __func__
);
1340 /* Validate handle. */
1341 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1342 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1347 /* Free outstanding command slot. */
1348 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1350 /* Bad payload or header */
1351 if (pkt
->entry_status
&
1352 (RF_INV_E_ORDER
| RF_INV_E_COUNT
|
1353 RF_INV_E_PARAM
| RF_INV_E_TYPE
)) {
1354 sp
->cmd
->result
= DID_ERROR
<< 16;
1355 } else if (pkt
->entry_status
& RF_BUSY
) {
1356 sp
->cmd
->result
= DID_BUS_BUSY
<< 16;
1358 sp
->cmd
->result
= DID_ERROR
<< 16;
1360 qla2x00_sp_compl(ha
, sp
);
1362 } else if (pkt
->entry_type
== COMMAND_A64_TYPE
|| pkt
->entry_type
==
1363 COMMAND_TYPE
|| pkt
->entry_type
== COMMAND_TYPE_7
) {
1364 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1366 qla_printk(KERN_WARNING
, ha
,
1367 "Error entry - invalid handle\n");
1369 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1370 qla2xxx_wake_dpc(ha
);
1375 * qla24xx_mbx_completion() - Process mailbox command completions.
1376 * @ha: SCSI driver HA context
1377 * @mb0: Mailbox0 register
1380 qla24xx_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
1383 uint16_t __iomem
*wptr
;
1384 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1386 /* Load return mailbox registers. */
1387 ha
->flags
.mbox_int
= 1;
1388 ha
->mailbox_out
[0] = mb0
;
1389 wptr
= (uint16_t __iomem
*)®
->mailbox1
;
1391 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
1392 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
1397 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1398 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
1400 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1401 __func__
, ha
->host_no
));
1406 * qla24xx_process_response_queue() - Process response queue entries.
1407 * @ha: SCSI driver HA context
1410 qla24xx_process_response_queue(struct scsi_qla_host
*ha
)
1412 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1413 struct sts_entry_24xx
*pkt
;
1415 if (!ha
->flags
.online
)
1418 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
1419 pkt
= (struct sts_entry_24xx
*)ha
->response_ring_ptr
;
1421 ha
->rsp_ring_index
++;
1422 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
1423 ha
->rsp_ring_index
= 0;
1424 ha
->response_ring_ptr
= ha
->response_ring
;
1426 ha
->response_ring_ptr
++;
1429 if (pkt
->entry_status
!= 0) {
1430 DEBUG3(printk(KERN_INFO
1431 "scsi(%ld): Process error entry.\n", ha
->host_no
));
1433 qla2x00_error_entry(ha
, (sts_entry_t
*) pkt
);
1434 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1439 switch (pkt
->entry_type
) {
1441 qla2x00_status_entry(ha
, pkt
);
1443 case STATUS_CONT_TYPE
:
1444 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
1446 case VP_RPT_ID_IOCB_TYPE
:
1447 qla24xx_report_id_acquisition(ha
,
1448 (struct vp_rpt_id_entry_24xx
*)pkt
);
1451 /* Type Not Supported. */
1452 DEBUG4(printk(KERN_WARNING
1453 "scsi(%ld): Received unknown response pkt type %x "
1454 "entry status=%x.\n",
1455 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
1458 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1462 /* Adjust ring index */
1463 WRT_REG_DWORD(®
->rsp_q_out
, ha
->rsp_ring_index
);
1467 qla2xxx_check_risc_status(scsi_qla_host_t
*ha
)
1471 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1473 if (!IS_QLA25XX(ha
))
1477 WRT_REG_DWORD(®
->iobase_addr
, 0x7C00);
1478 RD_REG_DWORD(®
->iobase_addr
);
1479 WRT_REG_DWORD(®
->iobase_window
, 0x0001);
1480 for (cnt
= 10000; (RD_REG_DWORD(®
->iobase_window
) & BIT_0
) == 0 &&
1481 rval
== QLA_SUCCESS
; cnt
--) {
1483 WRT_REG_DWORD(®
->iobase_window
, 0x0001);
1486 rval
= QLA_FUNCTION_TIMEOUT
;
1488 if (rval
== QLA_SUCCESS
)
1491 WRT_REG_DWORD(®
->iobase_window
, 0x0003);
1492 for (cnt
= 100; (RD_REG_DWORD(®
->iobase_window
) & BIT_0
) == 0 &&
1493 rval
== QLA_SUCCESS
; cnt
--) {
1495 WRT_REG_DWORD(®
->iobase_window
, 0x0003);
1498 rval
= QLA_FUNCTION_TIMEOUT
;
1500 if (rval
!= QLA_SUCCESS
)
1504 if (RD_REG_DWORD(®
->iobase_c8
) & BIT_3
)
1505 qla_printk(KERN_INFO
, ha
, "Additional code -- 0x55AA.\n");
1508 WRT_REG_DWORD(®
->iobase_window
, 0x0000);
1509 RD_REG_DWORD(®
->iobase_window
);
1513 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1515 * @dev_id: SCSI driver HA context
1517 * Called by system whenever the host adapter generates an interrupt.
1519 * Returns handled flag.
1522 qla24xx_intr_handler(int irq
, void *dev_id
)
1524 scsi_qla_host_t
*ha
;
1525 struct device_reg_24xx __iomem
*reg
;
1532 ha
= (scsi_qla_host_t
*) dev_id
;
1535 "%s(): NULL host pointer\n", __func__
);
1539 reg
= &ha
->iobase
->isp24
;
1542 spin_lock(&ha
->hardware_lock
);
1543 for (iter
= 50; iter
--; ) {
1544 stat
= RD_REG_DWORD(®
->host_status
);
1545 if (stat
& HSRX_RISC_PAUSED
) {
1546 if (pci_channel_offline(ha
->pdev
))
1549 if (ha
->hw_event_pause_errors
== 0)
1550 qla2x00_post_hwe_work(ha
, HW_EVENT_PARITY_ERR
,
1551 0, MSW(stat
), LSW(stat
));
1552 else if (ha
->hw_event_pause_errors
< 0xffffffff)
1553 ha
->hw_event_pause_errors
++;
1555 hccr
= RD_REG_DWORD(®
->hccr
);
1557 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1558 "Dumping firmware!\n", hccr
);
1560 qla2xxx_check_risc_status(ha
);
1562 ha
->isp_ops
->fw_dump(ha
, 1);
1563 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1565 } else if ((stat
& HSRX_RISC_INT
) == 0)
1568 switch (stat
& 0xff) {
1573 qla24xx_mbx_completion(ha
, MSW(stat
));
1574 status
|= MBX_INTERRUPT
;
1579 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1580 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1581 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1582 qla2x00_async_event(ha
, mb
);
1585 qla24xx_process_response_queue(ha
);
1588 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1590 ha
->host_no
, stat
& 0xff));
1593 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1594 RD_REG_DWORD_RELAXED(®
->hccr
);
1596 spin_unlock(&ha
->hardware_lock
);
1598 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1599 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1600 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1601 complete(&ha
->mbx_intr_comp
);
1608 qla24xx_msix_rsp_q(int irq
, void *dev_id
)
1610 scsi_qla_host_t
*ha
;
1611 struct device_reg_24xx __iomem
*reg
;
1614 reg
= &ha
->iobase
->isp24
;
1616 spin_lock_irq(&ha
->hardware_lock
);
1618 qla24xx_process_response_queue(ha
);
1619 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1621 spin_unlock_irq(&ha
->hardware_lock
);
1627 qla24xx_msix_default(int irq
, void *dev_id
)
1629 scsi_qla_host_t
*ha
;
1630 struct device_reg_24xx __iomem
*reg
;
1637 reg
= &ha
->iobase
->isp24
;
1640 spin_lock_irq(&ha
->hardware_lock
);
1642 stat
= RD_REG_DWORD(®
->host_status
);
1643 if (stat
& HSRX_RISC_PAUSED
) {
1644 if (pci_channel_offline(ha
->pdev
))
1647 if (ha
->hw_event_pause_errors
== 0)
1648 qla2x00_post_hwe_work(ha
, HW_EVENT_PARITY_ERR
,
1649 0, MSW(stat
), LSW(stat
));
1650 else if (ha
->hw_event_pause_errors
< 0xffffffff)
1651 ha
->hw_event_pause_errors
++;
1653 hccr
= RD_REG_DWORD(®
->hccr
);
1655 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1656 "Dumping firmware!\n", hccr
);
1658 qla2xxx_check_risc_status(ha
);
1660 ha
->isp_ops
->fw_dump(ha
, 1);
1661 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1663 } else if ((stat
& HSRX_RISC_INT
) == 0)
1666 switch (stat
& 0xff) {
1671 qla24xx_mbx_completion(ha
, MSW(stat
));
1672 status
|= MBX_INTERRUPT
;
1677 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1678 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1679 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1680 qla2x00_async_event(ha
, mb
);
1683 qla24xx_process_response_queue(ha
);
1686 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1688 ha
->host_no
, stat
& 0xff));
1691 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1693 spin_unlock_irq(&ha
->hardware_lock
);
1695 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1696 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1697 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1698 complete(&ha
->mbx_intr_comp
);
1704 /* Interrupt handling helpers. */
1706 struct qla_init_msix_entry
{
1710 irq_handler_t handler
;
1713 static struct qla_init_msix_entry imsix_entries
[QLA_MSIX_ENTRIES
] = {
1714 { QLA_MSIX_DEFAULT
, QLA_MIDX_DEFAULT
,
1715 "qla2xxx (default)", qla24xx_msix_default
},
1717 { QLA_MSIX_RSP_Q
, QLA_MIDX_RSP_Q
,
1718 "qla2xxx (rsp_q)", qla24xx_msix_rsp_q
},
1722 qla24xx_disable_msix(scsi_qla_host_t
*ha
)
1725 struct qla_msix_entry
*qentry
;
1727 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++) {
1728 qentry
= &ha
->msix_entries
[imsix_entries
[i
].index
];
1729 if (qentry
->have_irq
)
1730 free_irq(qentry
->msix_vector
, ha
);
1732 pci_disable_msix(ha
->pdev
);
1736 qla24xx_enable_msix(scsi_qla_host_t
*ha
)
1739 struct msix_entry entries
[QLA_MSIX_ENTRIES
];
1740 struct qla_msix_entry
*qentry
;
1742 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++)
1743 entries
[i
].entry
= imsix_entries
[i
].entry
;
1745 ret
= pci_enable_msix(ha
->pdev
, entries
, ARRAY_SIZE(entries
));
1747 qla_printk(KERN_WARNING
, ha
,
1748 "MSI-X: Failed to enable support -- %d/%d\n",
1749 QLA_MSIX_ENTRIES
, ret
);
1752 ha
->flags
.msix_enabled
= 1;
1754 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++) {
1755 qentry
= &ha
->msix_entries
[imsix_entries
[i
].index
];
1756 qentry
->msix_vector
= entries
[i
].vector
;
1757 qentry
->msix_entry
= entries
[i
].entry
;
1758 qentry
->have_irq
= 0;
1759 ret
= request_irq(qentry
->msix_vector
,
1760 imsix_entries
[i
].handler
, 0, imsix_entries
[i
].name
, ha
);
1762 qla_printk(KERN_WARNING
, ha
,
1763 "MSI-X: Unable to register handler -- %x/%d.\n",
1764 imsix_entries
[i
].index
, ret
);
1765 qla24xx_disable_msix(ha
);
1768 qentry
->have_irq
= 1;
1776 qla2x00_request_irqs(scsi_qla_host_t
*ha
)
1779 device_reg_t __iomem
*reg
= ha
->iobase
;
1781 /* If possible, enable MSI-X. */
1782 if (!IS_QLA2432(ha
) && !IS_QLA2532(ha
) && !IS_QLA8432(ha
))
1785 if (IS_QLA2432(ha
) && (ha
->chip_revision
< QLA_MSIX_CHIP_REV_24XX
||
1786 !QLA_MSIX_FW_MODE_1(ha
->fw_attributes
))) {
1787 DEBUG2(qla_printk(KERN_WARNING
, ha
,
1788 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
1789 ha
->chip_revision
, ha
->fw_attributes
));
1794 if (ha
->pdev
->subsystem_vendor
== PCI_VENDOR_ID_HP
&&
1795 (ha
->pdev
->subsystem_device
== 0x7040 ||
1796 ha
->pdev
->subsystem_device
== 0x7041 ||
1797 ha
->pdev
->subsystem_device
== 0x1705)) {
1798 DEBUG2(qla_printk(KERN_WARNING
, ha
,
1799 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n",
1800 ha
->pdev
->subsystem_vendor
,
1801 ha
->pdev
->subsystem_device
));
1806 ret
= qla24xx_enable_msix(ha
);
1808 DEBUG2(qla_printk(KERN_INFO
, ha
,
1809 "MSI-X: Enabled (0x%X, 0x%X).\n", ha
->chip_revision
,
1810 ha
->fw_attributes
));
1811 goto clear_risc_ints
;
1813 qla_printk(KERN_WARNING
, ha
,
1814 "MSI-X: Falling back-to INTa mode -- %d.\n", ret
);
1817 if (!IS_QLA24XX(ha
) && !IS_QLA2532(ha
) && !IS_QLA8432(ha
))
1820 ret
= pci_enable_msi(ha
->pdev
);
1822 DEBUG2(qla_printk(KERN_INFO
, ha
, "MSI: Enabled.\n"));
1823 ha
->flags
.msi_enabled
= 1;
1827 ret
= request_irq(ha
->pdev
->irq
, ha
->isp_ops
->intr_handler
,
1828 IRQF_DISABLED
|IRQF_SHARED
, QLA2XXX_DRIVER_NAME
, ha
);
1830 qla_printk(KERN_WARNING
, ha
,
1831 "Failed to reserve interrupt %d already in use.\n",
1835 ha
->flags
.inta_enabled
= 1;
1836 ha
->host
->irq
= ha
->pdev
->irq
;
1839 ha
->isp_ops
->disable_intrs(ha
);
1840 spin_lock_irq(&ha
->hardware_lock
);
1841 if (IS_FWI2_CAPABLE(ha
)) {
1842 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_HOST_INT
);
1843 WRT_REG_DWORD(®
->isp24
.hccr
, HCCRX_CLR_RISC_INT
);
1845 WRT_REG_WORD(®
->isp
.semaphore
, 0);
1846 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_RISC_INT
);
1847 WRT_REG_WORD(®
->isp
.hccr
, HCCR_CLR_HOST_INT
);
1849 spin_unlock_irq(&ha
->hardware_lock
);
1856 qla2x00_free_irqs(scsi_qla_host_t
*ha
)
1859 if (ha
->flags
.msix_enabled
)
1860 qla24xx_disable_msix(ha
);
1861 else if (ha
->flags
.inta_enabled
) {
1862 free_irq(ha
->host
->irq
, ha
);
1863 pci_disable_msi(ha
->pdev
);