2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 static void qla2x00_mbx_completion(scsi_qla_host_t
*, uint16_t);
10 static void qla2x00_async_event(scsi_qla_host_t
*, uint16_t *);
11 static void qla2x00_process_completed_request(struct scsi_qla_host
*, uint32_t);
12 static void qla2x00_status_entry(scsi_qla_host_t
*, void *);
13 static void qla2x00_status_cont_entry(scsi_qla_host_t
*, sts_cont_entry_t
*);
14 static void qla2x00_error_entry(scsi_qla_host_t
*, sts_entry_t
*);
15 static void qla2x00_ms_entry(scsi_qla_host_t
*, ms_iocb_entry_t
*);
17 static void qla24xx_ms_entry(scsi_qla_host_t
*, struct ct_entry_24xx
*);
20 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
22 * @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
, struct pt_regs
*regs
)
33 struct device_reg_2xxx __iomem
*reg
;
39 ha
= (scsi_qla_host_t
*) dev_id
;
42 "%s(): NULL host pointer\n", __func__
);
46 reg
= &ha
->iobase
->isp
;
49 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
50 for (iter
= 50; iter
--; ) {
51 if ((RD_REG_WORD(®
->istatus
) & ISR_RISC_INT
) == 0)
54 if (RD_REG_WORD(®
->semaphore
) & BIT_0
) {
55 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
56 RD_REG_WORD(®
->hccr
);
58 /* Get mailbox data. */
59 mb
[0] = RD_MAILBOX_REG(ha
, reg
, 0);
60 if (mb
[0] > 0x3fff && mb
[0] < 0x8000) {
61 qla2x00_mbx_completion(ha
, mb
[0]);
62 status
|= MBX_INTERRUPT
;
63 } else if (mb
[0] > 0x7fff && mb
[0] < 0xc000) {
64 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
65 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
66 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
67 qla2x00_async_event(ha
, mb
);
70 DEBUG2(printk("scsi(%ld): Unrecognized "
71 "interrupt type (%d).\n",
74 /* Release mailbox registers. */
75 WRT_REG_WORD(®
->semaphore
, 0);
76 RD_REG_WORD(®
->semaphore
);
78 qla2x00_process_response_queue(ha
);
80 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
81 RD_REG_WORD(®
->hccr
);
84 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
86 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
87 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
88 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
90 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
91 up(&ha
->mbx_intr_sem
);
93 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
100 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
102 * @dev_id: SCSI driver HA context
105 * Called by system whenever the host adapter generates an interrupt.
107 * Returns handled flag.
110 qla2300_intr_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
113 struct device_reg_2xxx __iomem
*reg
;
121 ha
= (scsi_qla_host_t
*) dev_id
;
124 "%s(): NULL host pointer\n", __func__
);
128 reg
= &ha
->iobase
->isp
;
131 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
132 for (iter
= 50; iter
--; ) {
133 stat
= RD_REG_DWORD(®
->u
.isp2300
.host_status
);
134 if (stat
& HSR_RISC_PAUSED
) {
135 hccr
= RD_REG_WORD(®
->hccr
);
136 if (hccr
& (BIT_15
| BIT_13
| BIT_11
| BIT_8
))
137 qla_printk(KERN_INFO
, ha
,
138 "Parity error -- HCCR=%x.\n", hccr
);
140 qla_printk(KERN_INFO
, ha
,
141 "RISC paused -- HCCR=%x.\n", hccr
);
144 * Issue a "HARD" reset in order for the RISC
145 * interrupt bit to be cleared. Schedule a big
146 * hammmer to get out of the RISC PAUSED state.
148 WRT_REG_WORD(®
->hccr
, HCCR_RESET_RISC
);
149 RD_REG_WORD(®
->hccr
);
150 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
152 } else if ((stat
& HSR_RISC_INT
) == 0)
155 switch (stat
& 0xff) {
160 qla2x00_mbx_completion(ha
, MSW(stat
));
161 status
|= MBX_INTERRUPT
;
163 /* Release mailbox registers. */
164 WRT_REG_WORD(®
->semaphore
, 0);
168 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
169 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
170 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
171 qla2x00_async_event(ha
, mb
);
174 qla2x00_process_response_queue(ha
);
177 mb
[0] = MBA_CMPLT_1_16BIT
;
179 qla2x00_async_event(ha
, mb
);
182 mb
[0] = MBA_SCSI_COMPLETION
;
184 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
185 qla2x00_async_event(ha
, mb
);
188 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
190 ha
->host_no
, stat
& 0xff));
193 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
194 RD_REG_WORD_RELAXED(®
->hccr
);
196 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
198 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
199 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
200 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
202 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
203 up(&ha
->mbx_intr_sem
);
205 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
208 return (IRQ_HANDLED
);
212 * qla2x00_mbx_completion() - Process mailbox command completions.
213 * @ha: SCSI driver HA context
214 * @mb0: Mailbox0 register
217 qla2x00_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
220 uint16_t __iomem
*wptr
;
221 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
223 /* Load return mailbox registers. */
224 ha
->flags
.mbox_int
= 1;
225 ha
->mailbox_out
[0] = mb0
;
226 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 1);
228 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
229 if (IS_QLA2200(ha
) && cnt
== 8)
230 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 8);
231 if (cnt
== 4 || cnt
== 5)
232 ha
->mailbox_out
[cnt
] = qla2x00_debounce_register(wptr
);
234 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
240 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
241 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
243 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
244 __func__
, ha
->host_no
));
249 * qla2x00_async_event() - Process aynchronous events.
250 * @ha: SCSI driver HA context
251 * @mb: Mailbox registers (0 - 3)
254 qla2x00_async_event(scsi_qla_host_t
*ha
, uint16_t *mb
)
257 static char *link_speeds
[5] = { "1", "2", "?", "4", "10" };
262 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
263 uint32_t rscn_entry
, host_pid
;
264 uint8_t rscn_queue_index
;
266 /* Setup to process RIO completion. */
269 case MBA_SCSI_COMPLETION
:
270 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
273 case MBA_CMPLT_1_16BIT
:
276 mb
[0] = MBA_SCSI_COMPLETION
;
278 case MBA_CMPLT_2_16BIT
:
282 mb
[0] = MBA_SCSI_COMPLETION
;
284 case MBA_CMPLT_3_16BIT
:
289 mb
[0] = MBA_SCSI_COMPLETION
;
291 case MBA_CMPLT_4_16BIT
:
295 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
297 mb
[0] = MBA_SCSI_COMPLETION
;
299 case MBA_CMPLT_5_16BIT
:
303 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
304 handles
[4] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 7);
306 mb
[0] = MBA_SCSI_COMPLETION
;
308 case MBA_CMPLT_2_32BIT
:
309 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
310 handles
[1] = le32_to_cpu(
311 ((uint32_t)(RD_MAILBOX_REG(ha
, reg
, 7) << 16)) |
312 RD_MAILBOX_REG(ha
, reg
, 6));
314 mb
[0] = MBA_SCSI_COMPLETION
;
321 case MBA_SCSI_COMPLETION
: /* Fast Post */
322 if (!ha
->flags
.online
)
325 for (cnt
= 0; cnt
< handle_cnt
; cnt
++)
326 qla2x00_process_completed_request(ha
, handles
[cnt
]);
329 case MBA_RESET
: /* Reset */
330 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha
->host_no
));
332 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
335 case MBA_SYSTEM_ERR
: /* System Error */
336 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
337 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
338 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
340 qla_printk(KERN_INFO
, ha
,
341 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
342 mb
[1], mb
[2], mb
[3]);
344 ha
->isp_ops
.fw_dump(ha
, 1);
346 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
347 if (mb
[1] == 0 && mb
[2] == 0) {
348 qla_printk(KERN_ERR
, ha
,
349 "Unrecoverable Hardware Error: adapter "
350 "marked OFFLINE!\n");
351 ha
->flags
.online
= 0;
353 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
354 } else if (mb
[1] == 0) {
355 qla_printk(KERN_INFO
, ha
,
356 "Unrecoverable Hardware Error: adapter marked "
358 ha
->flags
.online
= 0;
360 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
363 case MBA_REQ_TRANSFER_ERR
: /* Request Transfer Error */
364 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
366 qla_printk(KERN_WARNING
, ha
, "ISP Request Transfer Error.\n");
368 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
371 case MBA_RSP_TRANSFER_ERR
: /* Response Transfer Error */
372 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
374 qla_printk(KERN_WARNING
, ha
, "ISP Response Transfer Error.\n");
376 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
379 case MBA_WAKEUP_THRES
: /* Request Queue Wake-up */
380 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
384 case MBA_LIP_OCCURRED
: /* Loop Initialization Procedure */
385 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha
->host_no
,
387 qla_printk(KERN_INFO
, ha
, "LIP occured (%x).\n", mb
[1]);
389 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
390 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
391 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
392 qla2x00_mark_all_devices_lost(ha
, 1);
395 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
397 ha
->flags
.management_server_logged_in
= 0;
400 case MBA_LOOP_UP
: /* Loop Up Event */
401 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
402 link_speed
= link_speeds
[0];
403 ha
->link_data_rate
= LDR_1GB
;
405 link_speed
= link_speeds
[LS_UNKNOWN
];
407 link_speed
= link_speeds
[mb
[1]];
408 ha
->link_data_rate
= mb
[1];
411 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
412 ha
->host_no
, link_speed
));
413 qla_printk(KERN_INFO
, ha
, "LOOP UP detected (%s Gbps).\n",
416 ha
->flags
.management_server_logged_in
= 0;
419 case MBA_LOOP_DOWN
: /* Loop Down Event */
420 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
421 ha
->host_no
, mb
[1]));
422 qla_printk(KERN_INFO
, ha
, "LOOP DOWN detected (%x).\n", mb
[1]);
424 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
425 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
426 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
427 ha
->device_flags
|= DFLG_NO_CABLE
;
428 qla2x00_mark_all_devices_lost(ha
, 1);
431 ha
->flags
.management_server_logged_in
= 0;
432 ha
->link_data_rate
= LDR_UNKNOWN
;
434 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
437 case MBA_LIP_RESET
: /* LIP reset occurred */
438 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
439 ha
->host_no
, mb
[1]));
440 qla_printk(KERN_INFO
, ha
,
441 "LIP reset occured (%x).\n", mb
[1]);
443 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
444 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
445 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
446 qla2x00_mark_all_devices_lost(ha
, 1);
449 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
451 ha
->operating_mode
= LOOP
;
452 ha
->flags
.management_server_logged_in
= 0;
455 case MBA_POINT_TO_POINT
: /* Point-to-Point */
459 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
463 * Until there's a transition from loop down to loop up, treat
464 * this as loop down only.
466 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
467 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
468 if (!atomic_read(&ha
->loop_down_timer
))
469 atomic_set(&ha
->loop_down_timer
,
471 qla2x00_mark_all_devices_lost(ha
, 1);
474 if (!(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
475 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
477 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
480 case MBA_CHG_IN_CONNECTION
: /* Change in connection mode */
484 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
487 qla_printk(KERN_INFO
, ha
,
488 "Configuration change detected: value=%x.\n", mb
[1]);
490 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
491 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
492 if (!atomic_read(&ha
->loop_down_timer
))
493 atomic_set(&ha
->loop_down_timer
,
495 qla2x00_mark_all_devices_lost(ha
, 1);
498 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
499 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
502 case MBA_PORT_UPDATE
: /* Port database update */
504 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
505 * event etc. earlier indicating loop is down) then process
506 * it. Otherwise ignore it and Wait for RSCN to come in.
508 atomic_set(&ha
->loop_down_timer
, 0);
509 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
&&
510 atomic_read(&ha
->loop_state
) != LOOP_DEAD
) {
511 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
512 "ignored %04x/%04x/%04x.\n", ha
->host_no
, mb
[1],
517 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
519 DEBUG(printk(KERN_INFO
520 "scsi(%ld): Port database changed %04x %04x %04x.\n",
521 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
524 * Mark all devices as missing so we will login again.
526 atomic_set(&ha
->loop_state
, LOOP_UP
);
528 qla2x00_mark_all_devices_lost(ha
, 1);
530 ha
->flags
.rscn_queue_overflow
= 1;
532 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
533 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
536 case MBA_RSCN_UPDATE
: /* State Change Registration */
537 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
539 DEBUG(printk(KERN_INFO
540 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
541 ha
->host_no
, mb
[1], mb
[2]));
543 rscn_entry
= (mb
[1] << 16) | mb
[2];
544 host_pid
= (ha
->d_id
.b
.domain
<< 16) | (ha
->d_id
.b
.area
<< 8) |
546 if (rscn_entry
== host_pid
) {
547 DEBUG(printk(KERN_INFO
548 "scsi(%ld): Ignoring RSCN update to local host "
550 ha
->host_no
, host_pid
));
554 rscn_queue_index
= ha
->rscn_in_ptr
+ 1;
555 if (rscn_queue_index
== MAX_RSCN_COUNT
)
556 rscn_queue_index
= 0;
557 if (rscn_queue_index
!= ha
->rscn_out_ptr
) {
558 ha
->rscn_queue
[ha
->rscn_in_ptr
] = rscn_entry
;
559 ha
->rscn_in_ptr
= rscn_queue_index
;
561 ha
->flags
.rscn_queue_overflow
= 1;
564 atomic_set(&ha
->loop_state
, LOOP_UPDATE
);
565 atomic_set(&ha
->loop_down_timer
, 0);
566 ha
->flags
.management_server_logged_in
= 0;
568 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
569 set_bit(RSCN_UPDATE
, &ha
->dpc_flags
);
572 /* case MBA_RIO_RESPONSE: */
573 case MBA_ZIO_RESPONSE
:
574 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
576 DEBUG(printk(KERN_INFO
577 "scsi(%ld): [R|Z]IO update completion.\n",
580 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
581 qla24xx_process_response_queue(ha
);
583 qla2x00_process_response_queue(ha
);
586 case MBA_DISCARD_RND_FRAME
:
587 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
588 "%04x.\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
591 case MBA_TRACE_NOTIFICATION
:
592 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
593 ha
->host_no
, mb
[1], mb
[2]));
599 * qla2x00_process_completed_request() - Process a Fast Post response.
600 * @ha: SCSI driver HA context
604 qla2x00_process_completed_request(struct scsi_qla_host
*ha
, uint32_t index
)
608 /* Validate handle. */
609 if (index
>= MAX_OUTSTANDING_COMMANDS
) {
610 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
611 ha
->host_no
, index
));
612 qla_printk(KERN_WARNING
, ha
,
613 "Invalid SCSI completion handle %d.\n", index
);
615 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
619 sp
= ha
->outstanding_cmds
[index
];
621 /* Free outstanding command slot. */
622 ha
->outstanding_cmds
[index
] = NULL
;
624 CMD_COMPL_STATUS(sp
->cmd
) = 0L;
625 CMD_SCSI_STATUS(sp
->cmd
) = 0L;
627 /* Save ISP completion status */
628 sp
->cmd
->result
= DID_OK
<< 16;
629 qla2x00_sp_compl(ha
, sp
);
631 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
633 qla_printk(KERN_WARNING
, ha
,
634 "Invalid ISP SCSI completion handle\n");
636 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
641 * qla2x00_process_response_queue() - Process response queue entries.
642 * @ha: SCSI driver HA context
645 qla2x00_process_response_queue(struct scsi_qla_host
*ha
)
647 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
652 if (!ha
->flags
.online
)
655 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
656 pkt
= (sts_entry_t
*)ha
->response_ring_ptr
;
658 ha
->rsp_ring_index
++;
659 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
660 ha
->rsp_ring_index
= 0;
661 ha
->response_ring_ptr
= ha
->response_ring
;
663 ha
->response_ring_ptr
++;
666 if (pkt
->entry_status
!= 0) {
667 DEBUG3(printk(KERN_INFO
668 "scsi(%ld): Process error entry.\n", ha
->host_no
));
670 qla2x00_error_entry(ha
, pkt
);
671 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
676 switch (pkt
->entry_type
) {
678 qla2x00_status_entry(ha
, pkt
);
681 handle_cnt
= ((sts21_entry_t
*)pkt
)->handle_count
;
682 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
683 qla2x00_process_completed_request(ha
,
684 ((sts21_entry_t
*)pkt
)->handle
[cnt
]);
688 handle_cnt
= ((sts22_entry_t
*)pkt
)->handle_count
;
689 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
690 qla2x00_process_completed_request(ha
,
691 ((sts22_entry_t
*)pkt
)->handle
[cnt
]);
694 case STATUS_CONT_TYPE
:
695 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
698 qla2x00_ms_entry(ha
, (ms_iocb_entry_t
*)pkt
);
701 /* Type Not Supported. */
702 DEBUG4(printk(KERN_WARNING
703 "scsi(%ld): Received unknown response pkt type %x "
704 "entry status=%x.\n",
705 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
708 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
712 /* Adjust ring index */
713 WRT_REG_WORD(ISP_RSP_Q_OUT(ha
, reg
), ha
->rsp_ring_index
);
717 * qla2x00_status_entry() - Process a Status IOCB entry.
718 * @ha: SCSI driver HA context
719 * @pkt: Entry pointer
722 qla2x00_status_entry(scsi_qla_host_t
*ha
, void *pkt
)
726 struct scsi_cmnd
*cp
;
728 struct sts_entry_24xx
*sts24
;
729 uint16_t comp_status
;
730 uint16_t scsi_status
;
731 uint8_t lscsi_status
;
733 uint32_t sense_len
, rsp_info_len
, resid_len
, fw_resid_len
;
734 uint8_t *rsp_info
, *sense_data
;
736 sts
= (sts_entry_t
*) pkt
;
737 sts24
= (struct sts_entry_24xx
*) pkt
;
738 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
739 comp_status
= le16_to_cpu(sts24
->comp_status
);
740 scsi_status
= le16_to_cpu(sts24
->scsi_status
) & SS_MASK
;
742 comp_status
= le16_to_cpu(sts
->comp_status
);
743 scsi_status
= le16_to_cpu(sts
->scsi_status
) & SS_MASK
;
746 /* Fast path completion. */
747 if (comp_status
== CS_COMPLETE
&& scsi_status
== 0) {
748 qla2x00_process_completed_request(ha
, sts
->handle
);
753 /* Validate handle. */
754 if (sts
->handle
< MAX_OUTSTANDING_COMMANDS
) {
755 sp
= ha
->outstanding_cmds
[sts
->handle
];
756 ha
->outstanding_cmds
[sts
->handle
] = NULL
;
761 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
763 qla_printk(KERN_WARNING
, ha
, "Status Entry invalid handle.\n");
765 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
766 qla2xxx_wake_dpc(ha
);
771 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
772 "pkt->handle=%d sp=%p.\n", ha
->host_no
, sts
->handle
, sp
));
773 qla_printk(KERN_WARNING
, ha
,
774 "Command is NULL: already returned to OS (sp=%p)\n", sp
);
779 lscsi_status
= scsi_status
& STATUS_MASK
;
780 CMD_ENTRY_STATUS(cp
) = sts
->entry_status
;
781 CMD_COMPL_STATUS(cp
) = comp_status
;
782 CMD_SCSI_STATUS(cp
) = scsi_status
;
786 sense_len
= rsp_info_len
= resid_len
= fw_resid_len
= 0;
787 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
788 sense_len
= le32_to_cpu(sts24
->sense_len
);
789 rsp_info_len
= le32_to_cpu(sts24
->rsp_data_len
);
790 resid_len
= le32_to_cpu(sts24
->rsp_residual_count
);
791 fw_resid_len
= le32_to_cpu(sts24
->residual_len
);
792 rsp_info
= sts24
->data
;
793 sense_data
= sts24
->data
;
794 host_to_fcp_swap(sts24
->data
, sizeof(sts24
->data
));
796 sense_len
= le16_to_cpu(sts
->req_sense_length
);
797 rsp_info_len
= le16_to_cpu(sts
->rsp_info_len
);
798 resid_len
= le32_to_cpu(sts
->residual_length
);
799 rsp_info
= sts
->rsp_info
;
800 sense_data
= sts
->req_sense_data
;
803 /* Check for any FCP transport errors. */
804 if (scsi_status
& SS_RESPONSE_INFO_LEN_VALID
) {
805 /* Sense data lies beyond any FCP RESPONSE data. */
806 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
807 sense_data
+= rsp_info_len
;
808 if (rsp_info_len
> 3 && rsp_info
[3]) {
809 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
810 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
811 "retrying command\n", ha
->host_no
,
812 cp
->device
->channel
, cp
->device
->id
,
813 cp
->device
->lun
, rsp_info_len
, rsp_info
[0],
814 rsp_info
[1], rsp_info
[2], rsp_info
[3], rsp_info
[4],
815 rsp_info
[5], rsp_info
[6], rsp_info
[7]));
817 cp
->result
= DID_BUS_BUSY
<< 16;
818 qla2x00_sp_compl(ha
, sp
);
824 * Based on Host and scsi status generate status code for Linux
826 switch (comp_status
) {
828 if (scsi_status
== 0) {
829 cp
->result
= DID_OK
<< 16;
832 if (scsi_status
& (SS_RESIDUAL_UNDER
| SS_RESIDUAL_OVER
)) {
835 CMD_RESID_LEN(cp
) = resid
;
838 ((unsigned)(cp
->request_bufflen
- resid
) <
840 qla_printk(KERN_INFO
, ha
,
841 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
842 "detected (%x of %x bytes)...returning "
843 "error status.\n", ha
->host_no
,
844 cp
->device
->channel
, cp
->device
->id
,
845 cp
->device
->lun
, resid
,
846 cp
->request_bufflen
);
848 cp
->result
= DID_ERROR
<< 16;
852 cp
->result
= DID_OK
<< 16 | lscsi_status
;
854 if (lscsi_status
!= SS_CHECK_CONDITION
)
857 /* Copy Sense Data into sense buffer. */
858 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
860 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
863 if (sense_len
>= sizeof(cp
->sense_buffer
))
864 sense_len
= sizeof(cp
->sense_buffer
);
866 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
867 sp
->request_sense_length
= sense_len
;
868 sp
->request_sense_ptr
= cp
->sense_buffer
;
870 if (sp
->request_sense_length
> 32)
873 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
875 sp
->request_sense_ptr
+= sense_len
;
876 sp
->request_sense_length
-= sense_len
;
877 if (sp
->request_sense_length
!= 0)
880 DEBUG5(printk("%s(): Check condition Sense data, "
881 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__
,
882 ha
->host_no
, cp
->device
->channel
, cp
->device
->id
,
883 cp
->device
->lun
, cp
, cp
->serial_number
));
885 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
886 CMD_ACTUAL_SNSLEN(cp
)));
889 case CS_DATA_UNDERRUN
:
891 /* Use F/W calculated residual length. */
892 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
893 resid
= fw_resid_len
;
895 if (scsi_status
& SS_RESIDUAL_UNDER
) {
897 CMD_RESID_LEN(cp
) = resid
;
899 DEBUG2(printk(KERN_INFO
900 "scsi(%ld:%d:%d) UNDERRUN status detected "
901 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
902 "os_underflow=0x%x\n", ha
->host_no
,
903 cp
->device
->id
, cp
->device
->lun
, comp_status
,
904 scsi_status
, resid_len
, resid
, cp
->cmnd
[0],
910 * Check to see if SCSI Status is non zero. If so report SCSI
913 if (lscsi_status
!= 0) {
914 cp
->result
= DID_OK
<< 16 | lscsi_status
;
916 if (lscsi_status
!= SS_CHECK_CONDITION
)
919 /* Copy Sense Data into sense buffer */
920 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
922 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
925 if (sense_len
>= sizeof(cp
->sense_buffer
))
926 sense_len
= sizeof(cp
->sense_buffer
);
928 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
929 sp
->request_sense_length
= sense_len
;
930 sp
->request_sense_ptr
= cp
->sense_buffer
;
932 if (sp
->request_sense_length
> 32)
935 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
937 sp
->request_sense_ptr
+= sense_len
;
938 sp
->request_sense_length
-= sense_len
;
939 if (sp
->request_sense_length
!= 0)
942 DEBUG5(printk("%s(): Check condition Sense data, "
943 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
944 __func__
, ha
->host_no
, cp
->device
->channel
,
945 cp
->device
->id
, cp
->device
->lun
, cp
,
949 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
950 CMD_ACTUAL_SNSLEN(cp
)));
953 * If RISC reports underrun and target does not report
954 * it then we must have a lost frame, so tell upper
955 * layer to retry it by reporting a bus busy.
957 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
958 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
959 "frame(s) detected (%x of %x bytes)..."
960 "retrying command.\n", ha
->host_no
,
961 cp
->device
->channel
, cp
->device
->id
,
962 cp
->device
->lun
, resid
,
963 cp
->request_bufflen
));
965 cp
->result
= DID_BUS_BUSY
<< 16;
969 /* Handle mid-layer underflow */
970 if ((unsigned)(cp
->request_bufflen
- resid
) <
972 qla_printk(KERN_INFO
, ha
,
973 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
974 "detected (%x of %x bytes)...returning "
975 "error status.\n", ha
->host_no
,
976 cp
->device
->channel
, cp
->device
->id
,
977 cp
->device
->lun
, resid
,
978 cp
->request_bufflen
);
980 cp
->result
= DID_ERROR
<< 16;
984 /* Everybody online, looking good... */
985 cp
->result
= DID_OK
<< 16;
989 case CS_DATA_OVERRUN
:
990 DEBUG2(printk(KERN_INFO
991 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
992 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
994 DEBUG2(printk(KERN_INFO
995 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
996 cp
->cmnd
[0], cp
->cmnd
[1], cp
->cmnd
[2], cp
->cmnd
[3],
997 cp
->cmnd
[4], cp
->cmnd
[5]));
998 DEBUG2(printk(KERN_INFO
999 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1001 cp
->serial_number
, cp
->request_bufflen
, resid_len
));
1003 cp
->result
= DID_ERROR
<< 16;
1006 case CS_PORT_LOGGED_OUT
:
1007 case CS_PORT_CONFIG_CHG
:
1010 case CS_PORT_UNAVAILABLE
:
1012 * If the port is in Target Down state, return all IOs for this
1013 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1016 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1017 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1018 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
,
1019 cp
->serial_number
, comp_status
,
1020 atomic_read(&fcport
->state
)));
1022 cp
->result
= DID_BUS_BUSY
<< 16;
1023 if (atomic_read(&fcport
->state
) == FCS_ONLINE
) {
1024 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1029 DEBUG2(printk(KERN_INFO
1030 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1031 ha
->host_no
, comp_status
, scsi_status
));
1033 cp
->result
= DID_RESET
<< 16;
1038 * hv2.19.12 - DID_ABORT does not retry the request if we
1039 * aborted this request then abort otherwise it must be a
1042 DEBUG2(printk(KERN_INFO
1043 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1044 ha
->host_no
, comp_status
, scsi_status
));
1046 cp
->result
= DID_RESET
<< 16;
1050 cp
->result
= DID_BUS_BUSY
<< 16;
1052 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
1053 DEBUG2(printk(KERN_INFO
1054 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1055 "0x%x-0x%x\n", ha
->host_no
, cp
->device
->channel
,
1056 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1060 DEBUG2(printk(KERN_INFO
1061 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1062 "sflags=%x.\n", ha
->host_no
, cp
->device
->channel
,
1063 cp
->device
->id
, cp
->device
->lun
, comp_status
, scsi_status
,
1064 le16_to_cpu(sts
->status_flags
)));
1066 /* Check to see if logout occurred. */
1067 if ((le16_to_cpu(sts
->status_flags
) & SF_LOGOUT_SENT
))
1068 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1072 DEBUG2(printk(KERN_INFO
1073 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1074 ha
->host_no
, comp_status
, scsi_status
));
1076 /* SCSI Mid-Layer handles device queue full */
1078 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1083 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1084 "0x%x-0x%x.\n", ha
->host_no
, comp_status
, scsi_status
));
1085 qla_printk(KERN_INFO
, ha
,
1086 "Unknown status detected 0x%x-0x%x.\n",
1087 comp_status
, scsi_status
);
1089 cp
->result
= DID_ERROR
<< 16;
1093 /* Place command on done queue. */
1094 if (ha
->status_srb
== NULL
)
1095 qla2x00_sp_compl(ha
, sp
);
1099 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1100 * @ha: SCSI driver HA context
1101 * @pkt: Entry pointer
1103 * Extended sense data.
1106 qla2x00_status_cont_entry(scsi_qla_host_t
*ha
, sts_cont_entry_t
*pkt
)
1108 uint8_t sense_sz
= 0;
1109 srb_t
*sp
= ha
->status_srb
;
1110 struct scsi_cmnd
*cp
;
1112 if (sp
!= NULL
&& sp
->request_sense_length
!= 0) {
1115 DEBUG2(printk("%s(): Cmd already returned back to OS "
1116 "sp=%p.\n", __func__
, sp
));
1117 qla_printk(KERN_INFO
, ha
,
1118 "cmd is NULL: already returned to OS (sp=%p)\n",
1121 ha
->status_srb
= NULL
;
1125 if (sp
->request_sense_length
> sizeof(pkt
->data
)) {
1126 sense_sz
= sizeof(pkt
->data
);
1128 sense_sz
= sp
->request_sense_length
;
1131 /* Move sense data. */
1132 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
1133 host_to_fcp_swap(pkt
->data
, sizeof(pkt
->data
));
1134 memcpy(sp
->request_sense_ptr
, pkt
->data
, sense_sz
);
1135 DEBUG5(qla2x00_dump_buffer(sp
->request_sense_ptr
, sense_sz
));
1137 sp
->request_sense_ptr
+= sense_sz
;
1138 sp
->request_sense_length
-= sense_sz
;
1140 /* Place command on done queue. */
1141 if (sp
->request_sense_length
== 0) {
1142 ha
->status_srb
= NULL
;
1143 qla2x00_sp_compl(ha
, sp
);
1149 * qla2x00_error_entry() - Process an error entry.
1150 * @ha: SCSI driver HA context
1151 * @pkt: Entry pointer
1154 qla2x00_error_entry(scsi_qla_host_t
*ha
, sts_entry_t
*pkt
)
1158 #if defined(QL_DEBUG_LEVEL_2)
1159 if (pkt
->entry_status
& RF_INV_E_ORDER
)
1160 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Order\n", __func__
);
1161 else if (pkt
->entry_status
& RF_INV_E_COUNT
)
1162 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Count\n", __func__
);
1163 else if (pkt
->entry_status
& RF_INV_E_PARAM
)
1164 qla_printk(KERN_ERR
, ha
,
1165 "%s: Invalid Entry Parameter\n", __func__
);
1166 else if (pkt
->entry_status
& RF_INV_E_TYPE
)
1167 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Type\n", __func__
);
1168 else if (pkt
->entry_status
& RF_BUSY
)
1169 qla_printk(KERN_ERR
, ha
, "%s: Busy\n", __func__
);
1171 qla_printk(KERN_ERR
, ha
, "%s: UNKNOWN flag error\n", __func__
);
1174 /* Validate handle. */
1175 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1176 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1181 /* Free outstanding command slot. */
1182 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1184 /* Bad payload or header */
1185 if (pkt
->entry_status
&
1186 (RF_INV_E_ORDER
| RF_INV_E_COUNT
|
1187 RF_INV_E_PARAM
| RF_INV_E_TYPE
)) {
1188 sp
->cmd
->result
= DID_ERROR
<< 16;
1189 } else if (pkt
->entry_status
& RF_BUSY
) {
1190 sp
->cmd
->result
= DID_BUS_BUSY
<< 16;
1192 sp
->cmd
->result
= DID_ERROR
<< 16;
1194 qla2x00_sp_compl(ha
, sp
);
1196 } else if (pkt
->entry_type
== COMMAND_A64_TYPE
|| pkt
->entry_type
==
1197 COMMAND_TYPE
|| pkt
->entry_type
== COMMAND_TYPE_7
) {
1198 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1200 qla_printk(KERN_WARNING
, ha
,
1201 "Error entry - invalid handle\n");
1203 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1204 qla2xxx_wake_dpc(ha
);
1209 * qla2x00_ms_entry() - Process a Management Server entry.
1210 * @ha: SCSI driver HA context
1211 * @index: Response queue out pointer
1214 qla2x00_ms_entry(scsi_qla_host_t
*ha
, ms_iocb_entry_t
*pkt
)
1218 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1219 __func__
, ha
->host_no
, pkt
, pkt
->handle1
));
1221 /* Validate handle. */
1222 if (pkt
->handle1
< MAX_OUTSTANDING_COMMANDS
)
1223 sp
= ha
->outstanding_cmds
[pkt
->handle1
];
1228 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1230 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle\n");
1232 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1236 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->status
);
1237 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1239 /* Free outstanding command slot. */
1240 ha
->outstanding_cmds
[pkt
->handle1
] = NULL
;
1242 qla2x00_sp_compl(ha
, sp
);
1247 * qla24xx_mbx_completion() - Process mailbox command completions.
1248 * @ha: SCSI driver HA context
1249 * @mb0: Mailbox0 register
1252 qla24xx_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
1255 uint16_t __iomem
*wptr
;
1256 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1258 /* Load return mailbox registers. */
1259 ha
->flags
.mbox_int
= 1;
1260 ha
->mailbox_out
[0] = mb0
;
1261 wptr
= (uint16_t __iomem
*)®
->mailbox1
;
1263 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
1264 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
1269 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1270 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
1272 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1273 __func__
, ha
->host_no
));
1278 * qla24xx_process_response_queue() - Process response queue entries.
1279 * @ha: SCSI driver HA context
1282 qla24xx_process_response_queue(struct scsi_qla_host
*ha
)
1284 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1285 struct sts_entry_24xx
*pkt
;
1287 if (!ha
->flags
.online
)
1290 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
1291 pkt
= (struct sts_entry_24xx
*)ha
->response_ring_ptr
;
1293 ha
->rsp_ring_index
++;
1294 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
1295 ha
->rsp_ring_index
= 0;
1296 ha
->response_ring_ptr
= ha
->response_ring
;
1298 ha
->response_ring_ptr
++;
1301 if (pkt
->entry_status
!= 0) {
1302 DEBUG3(printk(KERN_INFO
1303 "scsi(%ld): Process error entry.\n", ha
->host_no
));
1305 qla2x00_error_entry(ha
, (sts_entry_t
*) pkt
);
1306 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1311 switch (pkt
->entry_type
) {
1313 qla2x00_status_entry(ha
, pkt
);
1315 case STATUS_CONT_TYPE
:
1316 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
1319 qla24xx_ms_entry(ha
, (struct ct_entry_24xx
*)pkt
);
1322 /* Type Not Supported. */
1323 DEBUG4(printk(KERN_WARNING
1324 "scsi(%ld): Received unknown response pkt type %x "
1325 "entry status=%x.\n",
1326 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
1329 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1333 /* Adjust ring index */
1334 WRT_REG_DWORD(®
->rsp_q_out
, ha
->rsp_ring_index
);
1338 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1340 * @dev_id: SCSI driver HA context
1343 * Called by system whenever the host adapter generates an interrupt.
1345 * Returns handled flag.
1348 qla24xx_intr_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
1350 scsi_qla_host_t
*ha
;
1351 struct device_reg_24xx __iomem
*reg
;
1353 unsigned long flags
;
1359 ha
= (scsi_qla_host_t
*) dev_id
;
1362 "%s(): NULL host pointer\n", __func__
);
1366 reg
= &ha
->iobase
->isp24
;
1369 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1370 for (iter
= 50; iter
--; ) {
1371 stat
= RD_REG_DWORD(®
->host_status
);
1372 if (stat
& HSRX_RISC_PAUSED
) {
1373 hccr
= RD_REG_DWORD(®
->hccr
);
1375 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1376 "Dumping firmware!\n", hccr
);
1377 qla24xx_fw_dump(ha
, 1);
1379 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1381 } else if ((stat
& HSRX_RISC_INT
) == 0)
1384 switch (stat
& 0xff) {
1389 qla24xx_mbx_completion(ha
, MSW(stat
));
1390 status
|= MBX_INTERRUPT
;
1395 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1396 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1397 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1398 qla2x00_async_event(ha
, mb
);
1401 qla24xx_process_response_queue(ha
);
1404 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1406 ha
->host_no
, stat
& 0xff));
1409 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1410 RD_REG_DWORD_RELAXED(®
->hccr
);
1412 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1414 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1415 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1416 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
1418 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1419 up(&ha
->mbx_intr_sem
);
1421 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
1428 * qla24xx_ms_entry() - Process a Management Server entry.
1429 * @ha: SCSI driver HA context
1430 * @index: Response queue out pointer
1433 qla24xx_ms_entry(scsi_qla_host_t
*ha
, struct ct_entry_24xx
*pkt
)
1437 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1438 __func__
, ha
->host_no
, pkt
, pkt
->handle
));
1440 DEBUG9(printk("%s: ct pkt dump:\n", __func__
));
1441 DEBUG9(qla2x00_dump_buffer((void *)pkt
, sizeof(struct ct_entry_24xx
)));
1443 /* Validate handle. */
1444 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1445 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1450 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1452 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
1454 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle %d\n",
1457 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1461 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->comp_status
);
1462 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1464 /* Free outstanding command slot. */
1465 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1467 qla2x00_sp_compl(ha
, sp
);