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
24 * Called by system whenever the host adapter generates an interrupt.
26 * Returns handled flag.
29 qla2100_intr_handler(int irq
, void *dev_id
)
32 struct device_reg_2xxx __iomem
*reg
;
38 ha
= (scsi_qla_host_t
*) dev_id
;
41 "%s(): NULL host pointer\n", __func__
);
45 reg
= &ha
->iobase
->isp
;
48 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
49 for (iter
= 50; iter
--; ) {
50 if ((RD_REG_WORD(®
->istatus
) & ISR_RISC_INT
) == 0)
53 if (RD_REG_WORD(®
->semaphore
) & BIT_0
) {
54 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
55 RD_REG_WORD(®
->hccr
);
57 /* Get mailbox data. */
58 mb
[0] = RD_MAILBOX_REG(ha
, reg
, 0);
59 if (mb
[0] > 0x3fff && mb
[0] < 0x8000) {
60 qla2x00_mbx_completion(ha
, mb
[0]);
61 status
|= MBX_INTERRUPT
;
62 } else if (mb
[0] > 0x7fff && mb
[0] < 0xc000) {
63 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
64 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
65 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
66 qla2x00_async_event(ha
, mb
);
69 DEBUG2(printk("scsi(%ld): Unrecognized "
70 "interrupt type (%d).\n",
73 /* Release mailbox registers. */
74 WRT_REG_WORD(®
->semaphore
, 0);
75 RD_REG_WORD(®
->semaphore
);
77 qla2x00_process_response_queue(ha
);
79 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
80 RD_REG_WORD(®
->hccr
);
83 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
85 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
86 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
87 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
89 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
90 up(&ha
->mbx_intr_sem
);
92 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
99 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
101 * @dev_id: SCSI driver HA context
103 * Called by system whenever the host adapter generates an interrupt.
105 * Returns handled flag.
108 qla2300_intr_handler(int irq
, void *dev_id
)
111 struct device_reg_2xxx __iomem
*reg
;
119 ha
= (scsi_qla_host_t
*) dev_id
;
122 "%s(): NULL host pointer\n", __func__
);
126 reg
= &ha
->iobase
->isp
;
129 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
130 for (iter
= 50; iter
--; ) {
131 stat
= RD_REG_DWORD(®
->u
.isp2300
.host_status
);
132 if (stat
& HSR_RISC_PAUSED
) {
133 hccr
= RD_REG_WORD(®
->hccr
);
134 if (hccr
& (BIT_15
| BIT_13
| BIT_11
| BIT_8
))
135 qla_printk(KERN_INFO
, ha
,
136 "Parity error -- HCCR=%x.\n", hccr
);
138 qla_printk(KERN_INFO
, ha
,
139 "RISC paused -- HCCR=%x.\n", hccr
);
142 * Issue a "HARD" reset in order for the RISC
143 * interrupt bit to be cleared. Schedule a big
144 * hammmer to get out of the RISC PAUSED state.
146 WRT_REG_WORD(®
->hccr
, HCCR_RESET_RISC
);
147 RD_REG_WORD(®
->hccr
);
148 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
150 } else if ((stat
& HSR_RISC_INT
) == 0)
153 switch (stat
& 0xff) {
158 qla2x00_mbx_completion(ha
, MSW(stat
));
159 status
|= MBX_INTERRUPT
;
161 /* Release mailbox registers. */
162 WRT_REG_WORD(®
->semaphore
, 0);
166 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
167 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
168 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
169 qla2x00_async_event(ha
, mb
);
172 qla2x00_process_response_queue(ha
);
175 mb
[0] = MBA_CMPLT_1_16BIT
;
177 qla2x00_async_event(ha
, mb
);
180 mb
[0] = MBA_SCSI_COMPLETION
;
182 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
183 qla2x00_async_event(ha
, mb
);
186 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
188 ha
->host_no
, stat
& 0xff));
191 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
192 RD_REG_WORD_RELAXED(®
->hccr
);
194 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
196 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
197 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
198 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
200 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
201 up(&ha
->mbx_intr_sem
);
203 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
206 return (IRQ_HANDLED
);
210 * qla2x00_mbx_completion() - Process mailbox command completions.
211 * @ha: SCSI driver HA context
212 * @mb0: Mailbox0 register
215 qla2x00_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
218 uint16_t __iomem
*wptr
;
219 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
221 /* Load return mailbox registers. */
222 ha
->flags
.mbox_int
= 1;
223 ha
->mailbox_out
[0] = mb0
;
224 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 1);
226 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
227 if (IS_QLA2200(ha
) && cnt
== 8)
228 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 8);
229 if (cnt
== 4 || cnt
== 5)
230 ha
->mailbox_out
[cnt
] = qla2x00_debounce_register(wptr
);
232 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
238 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
239 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
241 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
242 __func__
, ha
->host_no
));
247 * qla2x00_async_event() - Process aynchronous events.
248 * @ha: SCSI driver HA context
249 * @mb: Mailbox registers (0 - 3)
252 qla2x00_async_event(scsi_qla_host_t
*ha
, uint16_t *mb
)
255 static char *link_speeds
[5] = { "1", "2", "?", "4", "10" };
260 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
261 uint32_t rscn_entry
, host_pid
;
262 uint8_t rscn_queue_index
;
264 /* Setup to process RIO completion. */
267 case MBA_SCSI_COMPLETION
:
268 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
271 case MBA_CMPLT_1_16BIT
:
274 mb
[0] = MBA_SCSI_COMPLETION
;
276 case MBA_CMPLT_2_16BIT
:
280 mb
[0] = MBA_SCSI_COMPLETION
;
282 case MBA_CMPLT_3_16BIT
:
287 mb
[0] = MBA_SCSI_COMPLETION
;
289 case MBA_CMPLT_4_16BIT
:
293 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
295 mb
[0] = MBA_SCSI_COMPLETION
;
297 case MBA_CMPLT_5_16BIT
:
301 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
302 handles
[4] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 7);
304 mb
[0] = MBA_SCSI_COMPLETION
;
306 case MBA_CMPLT_2_32BIT
:
307 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
308 handles
[1] = le32_to_cpu(
309 ((uint32_t)(RD_MAILBOX_REG(ha
, reg
, 7) << 16)) |
310 RD_MAILBOX_REG(ha
, reg
, 6));
312 mb
[0] = MBA_SCSI_COMPLETION
;
319 case MBA_SCSI_COMPLETION
: /* Fast Post */
320 if (!ha
->flags
.online
)
323 for (cnt
= 0; cnt
< handle_cnt
; cnt
++)
324 qla2x00_process_completed_request(ha
, handles
[cnt
]);
327 case MBA_RESET
: /* Reset */
328 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha
->host_no
));
330 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
333 case MBA_SYSTEM_ERR
: /* System Error */
334 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
335 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
336 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
338 qla_printk(KERN_INFO
, ha
,
339 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
340 mb
[1], mb
[2], mb
[3]);
342 ha
->isp_ops
.fw_dump(ha
, 1);
344 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
345 if (mb
[1] == 0 && mb
[2] == 0) {
346 qla_printk(KERN_ERR
, ha
,
347 "Unrecoverable Hardware Error: adapter "
348 "marked OFFLINE!\n");
349 ha
->flags
.online
= 0;
351 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
352 } else if (mb
[1] == 0) {
353 qla_printk(KERN_INFO
, ha
,
354 "Unrecoverable Hardware Error: adapter marked "
356 ha
->flags
.online
= 0;
358 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
361 case MBA_REQ_TRANSFER_ERR
: /* Request Transfer Error */
362 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
364 qla_printk(KERN_WARNING
, ha
, "ISP Request Transfer Error.\n");
366 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
369 case MBA_RSP_TRANSFER_ERR
: /* Response Transfer Error */
370 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
372 qla_printk(KERN_WARNING
, ha
, "ISP Response Transfer Error.\n");
374 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
377 case MBA_WAKEUP_THRES
: /* Request Queue Wake-up */
378 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
382 case MBA_LIP_OCCURRED
: /* Loop Initialization Procedure */
383 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha
->host_no
,
385 qla_printk(KERN_INFO
, ha
, "LIP occured (%x).\n", mb
[1]);
387 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
388 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
389 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
390 qla2x00_mark_all_devices_lost(ha
, 1);
393 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
395 ha
->flags
.management_server_logged_in
= 0;
398 case MBA_LOOP_UP
: /* Loop Up Event */
399 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
400 link_speed
= link_speeds
[0];
401 ha
->link_data_rate
= PORT_SPEED_1GB
;
403 link_speed
= link_speeds
[LS_UNKNOWN
];
405 link_speed
= link_speeds
[mb
[1]];
406 ha
->link_data_rate
= mb
[1];
409 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
410 ha
->host_no
, link_speed
));
411 qla_printk(KERN_INFO
, ha
, "LOOP UP detected (%s Gbps).\n",
414 ha
->flags
.management_server_logged_in
= 0;
417 case MBA_LOOP_DOWN
: /* Loop Down Event */
418 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
419 ha
->host_no
, mb
[1]));
420 qla_printk(KERN_INFO
, ha
, "LOOP DOWN detected (%x).\n", mb
[1]);
422 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
423 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
424 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
425 ha
->device_flags
|= DFLG_NO_CABLE
;
426 qla2x00_mark_all_devices_lost(ha
, 1);
429 ha
->flags
.management_server_logged_in
= 0;
430 ha
->link_data_rate
= PORT_SPEED_UNKNOWN
;
432 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
435 case MBA_LIP_RESET
: /* LIP reset occurred */
436 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
437 ha
->host_no
, mb
[1]));
438 qla_printk(KERN_INFO
, ha
,
439 "LIP reset occured (%x).\n", mb
[1]);
441 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
442 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
443 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
444 qla2x00_mark_all_devices_lost(ha
, 1);
447 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
449 ha
->operating_mode
= LOOP
;
450 ha
->flags
.management_server_logged_in
= 0;
453 case MBA_POINT_TO_POINT
: /* Point-to-Point */
457 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
461 * Until there's a transition from loop down to loop up, treat
462 * this as loop down only.
464 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
465 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
466 if (!atomic_read(&ha
->loop_down_timer
))
467 atomic_set(&ha
->loop_down_timer
,
469 qla2x00_mark_all_devices_lost(ha
, 1);
472 if (!(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
473 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
475 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
478 case MBA_CHG_IN_CONNECTION
: /* Change in connection mode */
482 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
485 qla_printk(KERN_INFO
, ha
,
486 "Configuration change detected: value=%x.\n", mb
[1]);
488 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
489 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
490 if (!atomic_read(&ha
->loop_down_timer
))
491 atomic_set(&ha
->loop_down_timer
,
493 qla2x00_mark_all_devices_lost(ha
, 1);
496 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
497 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
500 case MBA_PORT_UPDATE
: /* Port database update */
502 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
503 * event etc. earlier indicating loop is down) then process
504 * it. Otherwise ignore it and Wait for RSCN to come in.
506 atomic_set(&ha
->loop_down_timer
, 0);
507 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
&&
508 atomic_read(&ha
->loop_state
) != LOOP_DEAD
) {
509 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
510 "ignored %04x/%04x/%04x.\n", ha
->host_no
, mb
[1],
515 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
517 DEBUG(printk(KERN_INFO
518 "scsi(%ld): Port database changed %04x %04x %04x.\n",
519 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
522 * Mark all devices as missing so we will login again.
524 atomic_set(&ha
->loop_state
, LOOP_UP
);
526 qla2x00_mark_all_devices_lost(ha
, 1);
528 ha
->flags
.rscn_queue_overflow
= 1;
530 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
531 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
534 case MBA_RSCN_UPDATE
: /* State Change Registration */
535 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
537 DEBUG(printk(KERN_INFO
538 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
539 ha
->host_no
, mb
[1], mb
[2]));
541 rscn_entry
= (mb
[1] << 16) | mb
[2];
542 host_pid
= (ha
->d_id
.b
.domain
<< 16) | (ha
->d_id
.b
.area
<< 8) |
544 if (rscn_entry
== host_pid
) {
545 DEBUG(printk(KERN_INFO
546 "scsi(%ld): Ignoring RSCN update to local host "
548 ha
->host_no
, host_pid
));
552 rscn_queue_index
= ha
->rscn_in_ptr
+ 1;
553 if (rscn_queue_index
== MAX_RSCN_COUNT
)
554 rscn_queue_index
= 0;
555 if (rscn_queue_index
!= ha
->rscn_out_ptr
) {
556 ha
->rscn_queue
[ha
->rscn_in_ptr
] = rscn_entry
;
557 ha
->rscn_in_ptr
= rscn_queue_index
;
559 ha
->flags
.rscn_queue_overflow
= 1;
562 atomic_set(&ha
->loop_state
, LOOP_UPDATE
);
563 atomic_set(&ha
->loop_down_timer
, 0);
564 ha
->flags
.management_server_logged_in
= 0;
566 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
567 set_bit(RSCN_UPDATE
, &ha
->dpc_flags
);
570 /* case MBA_RIO_RESPONSE: */
571 case MBA_ZIO_RESPONSE
:
572 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
574 DEBUG(printk(KERN_INFO
575 "scsi(%ld): [R|Z]IO update completion.\n",
578 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
579 qla24xx_process_response_queue(ha
);
581 qla2x00_process_response_queue(ha
);
584 case MBA_DISCARD_RND_FRAME
:
585 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
586 "%04x.\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
589 case MBA_TRACE_NOTIFICATION
:
590 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
591 ha
->host_no
, mb
[1], mb
[2]));
597 * qla2x00_process_completed_request() - Process a Fast Post response.
598 * @ha: SCSI driver HA context
602 qla2x00_process_completed_request(struct scsi_qla_host
*ha
, uint32_t index
)
606 /* Validate handle. */
607 if (index
>= MAX_OUTSTANDING_COMMANDS
) {
608 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
609 ha
->host_no
, index
));
610 qla_printk(KERN_WARNING
, ha
,
611 "Invalid SCSI completion handle %d.\n", index
);
613 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
617 sp
= ha
->outstanding_cmds
[index
];
619 /* Free outstanding command slot. */
620 ha
->outstanding_cmds
[index
] = NULL
;
622 CMD_COMPL_STATUS(sp
->cmd
) = 0L;
623 CMD_SCSI_STATUS(sp
->cmd
) = 0L;
625 /* Save ISP completion status */
626 sp
->cmd
->result
= DID_OK
<< 16;
627 qla2x00_sp_compl(ha
, sp
);
629 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
631 qla_printk(KERN_WARNING
, ha
,
632 "Invalid ISP SCSI completion handle\n");
634 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
639 * qla2x00_process_response_queue() - Process response queue entries.
640 * @ha: SCSI driver HA context
643 qla2x00_process_response_queue(struct scsi_qla_host
*ha
)
645 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
650 if (!ha
->flags
.online
)
653 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
654 pkt
= (sts_entry_t
*)ha
->response_ring_ptr
;
656 ha
->rsp_ring_index
++;
657 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
658 ha
->rsp_ring_index
= 0;
659 ha
->response_ring_ptr
= ha
->response_ring
;
661 ha
->response_ring_ptr
++;
664 if (pkt
->entry_status
!= 0) {
665 DEBUG3(printk(KERN_INFO
666 "scsi(%ld): Process error entry.\n", ha
->host_no
));
668 qla2x00_error_entry(ha
, pkt
);
669 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
674 switch (pkt
->entry_type
) {
676 qla2x00_status_entry(ha
, pkt
);
679 handle_cnt
= ((sts21_entry_t
*)pkt
)->handle_count
;
680 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
681 qla2x00_process_completed_request(ha
,
682 ((sts21_entry_t
*)pkt
)->handle
[cnt
]);
686 handle_cnt
= ((sts22_entry_t
*)pkt
)->handle_count
;
687 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
688 qla2x00_process_completed_request(ha
,
689 ((sts22_entry_t
*)pkt
)->handle
[cnt
]);
692 case STATUS_CONT_TYPE
:
693 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
696 qla2x00_ms_entry(ha
, (ms_iocb_entry_t
*)pkt
);
699 /* Type Not Supported. */
700 DEBUG4(printk(KERN_WARNING
701 "scsi(%ld): Received unknown response pkt type %x "
702 "entry status=%x.\n",
703 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
706 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
710 /* Adjust ring index */
711 WRT_REG_WORD(ISP_RSP_Q_OUT(ha
, reg
), ha
->rsp_ring_index
);
715 * qla2x00_status_entry() - Process a Status IOCB entry.
716 * @ha: SCSI driver HA context
717 * @pkt: Entry pointer
720 qla2x00_status_entry(scsi_qla_host_t
*ha
, void *pkt
)
724 struct scsi_cmnd
*cp
;
726 struct sts_entry_24xx
*sts24
;
727 uint16_t comp_status
;
728 uint16_t scsi_status
;
729 uint8_t lscsi_status
;
731 uint32_t sense_len
, rsp_info_len
, resid_len
, fw_resid_len
;
732 uint8_t *rsp_info
, *sense_data
;
734 sts
= (sts_entry_t
*) pkt
;
735 sts24
= (struct sts_entry_24xx
*) pkt
;
736 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
737 comp_status
= le16_to_cpu(sts24
->comp_status
);
738 scsi_status
= le16_to_cpu(sts24
->scsi_status
) & SS_MASK
;
740 comp_status
= le16_to_cpu(sts
->comp_status
);
741 scsi_status
= le16_to_cpu(sts
->scsi_status
) & SS_MASK
;
744 /* Fast path completion. */
745 if (comp_status
== CS_COMPLETE
&& scsi_status
== 0) {
746 qla2x00_process_completed_request(ha
, sts
->handle
);
751 /* Validate handle. */
752 if (sts
->handle
< MAX_OUTSTANDING_COMMANDS
) {
753 sp
= ha
->outstanding_cmds
[sts
->handle
];
754 ha
->outstanding_cmds
[sts
->handle
] = NULL
;
759 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
761 qla_printk(KERN_WARNING
, ha
, "Status Entry invalid handle.\n");
763 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
764 qla2xxx_wake_dpc(ha
);
769 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
770 "pkt->handle=%d sp=%p.\n", ha
->host_no
, sts
->handle
, sp
));
771 qla_printk(KERN_WARNING
, ha
,
772 "Command is NULL: already returned to OS (sp=%p)\n", sp
);
777 lscsi_status
= scsi_status
& STATUS_MASK
;
778 CMD_ENTRY_STATUS(cp
) = sts
->entry_status
;
779 CMD_COMPL_STATUS(cp
) = comp_status
;
780 CMD_SCSI_STATUS(cp
) = scsi_status
;
784 sense_len
= rsp_info_len
= resid_len
= fw_resid_len
= 0;
785 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
786 sense_len
= le32_to_cpu(sts24
->sense_len
);
787 rsp_info_len
= le32_to_cpu(sts24
->rsp_data_len
);
788 resid_len
= le32_to_cpu(sts24
->rsp_residual_count
);
789 fw_resid_len
= le32_to_cpu(sts24
->residual_len
);
790 rsp_info
= sts24
->data
;
791 sense_data
= sts24
->data
;
792 host_to_fcp_swap(sts24
->data
, sizeof(sts24
->data
));
794 sense_len
= le16_to_cpu(sts
->req_sense_length
);
795 rsp_info_len
= le16_to_cpu(sts
->rsp_info_len
);
796 resid_len
= le32_to_cpu(sts
->residual_length
);
797 rsp_info
= sts
->rsp_info
;
798 sense_data
= sts
->req_sense_data
;
801 /* Check for any FCP transport errors. */
802 if (scsi_status
& SS_RESPONSE_INFO_LEN_VALID
) {
803 /* Sense data lies beyond any FCP RESPONSE data. */
804 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
805 sense_data
+= rsp_info_len
;
806 if (rsp_info_len
> 3 && rsp_info
[3]) {
807 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
808 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
809 "retrying command\n", ha
->host_no
,
810 cp
->device
->channel
, cp
->device
->id
,
811 cp
->device
->lun
, rsp_info_len
, rsp_info
[0],
812 rsp_info
[1], rsp_info
[2], rsp_info
[3], rsp_info
[4],
813 rsp_info
[5], rsp_info
[6], rsp_info
[7]));
815 cp
->result
= DID_BUS_BUSY
<< 16;
816 qla2x00_sp_compl(ha
, sp
);
822 * Based on Host and scsi status generate status code for Linux
824 switch (comp_status
) {
826 if (scsi_status
== 0) {
827 cp
->result
= DID_OK
<< 16;
830 if (scsi_status
& (SS_RESIDUAL_UNDER
| SS_RESIDUAL_OVER
)) {
833 CMD_RESID_LEN(cp
) = resid
;
836 ((unsigned)(cp
->request_bufflen
- resid
) <
838 qla_printk(KERN_INFO
, ha
,
839 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
840 "detected (%x of %x bytes)...returning "
841 "error status.\n", ha
->host_no
,
842 cp
->device
->channel
, cp
->device
->id
,
843 cp
->device
->lun
, resid
,
844 cp
->request_bufflen
);
846 cp
->result
= DID_ERROR
<< 16;
850 cp
->result
= DID_OK
<< 16 | lscsi_status
;
852 if (lscsi_status
!= SS_CHECK_CONDITION
)
855 /* Copy Sense Data into sense buffer. */
856 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
858 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
861 if (sense_len
>= sizeof(cp
->sense_buffer
))
862 sense_len
= sizeof(cp
->sense_buffer
);
864 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
865 sp
->request_sense_length
= sense_len
;
866 sp
->request_sense_ptr
= cp
->sense_buffer
;
868 if (sp
->request_sense_length
> 32)
871 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
873 sp
->request_sense_ptr
+= sense_len
;
874 sp
->request_sense_length
-= sense_len
;
875 if (sp
->request_sense_length
!= 0)
878 DEBUG5(printk("%s(): Check condition Sense data, "
879 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__
,
880 ha
->host_no
, cp
->device
->channel
, cp
->device
->id
,
881 cp
->device
->lun
, cp
, cp
->serial_number
));
883 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
884 CMD_ACTUAL_SNSLEN(cp
)));
887 case CS_DATA_UNDERRUN
:
889 /* Use F/W calculated residual length. */
890 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
891 resid
= fw_resid_len
;
893 if (scsi_status
& SS_RESIDUAL_UNDER
) {
895 CMD_RESID_LEN(cp
) = resid
;
897 DEBUG2(printk(KERN_INFO
898 "scsi(%ld:%d:%d) UNDERRUN status detected "
899 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
900 "os_underflow=0x%x\n", ha
->host_no
,
901 cp
->device
->id
, cp
->device
->lun
, comp_status
,
902 scsi_status
, resid_len
, resid
, cp
->cmnd
[0],
908 * Check to see if SCSI Status is non zero. If so report SCSI
911 if (lscsi_status
!= 0) {
912 cp
->result
= DID_OK
<< 16 | lscsi_status
;
914 if (lscsi_status
!= SS_CHECK_CONDITION
)
917 /* Copy Sense Data into sense buffer */
918 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
920 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
923 if (sense_len
>= sizeof(cp
->sense_buffer
))
924 sense_len
= sizeof(cp
->sense_buffer
);
926 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
927 sp
->request_sense_length
= sense_len
;
928 sp
->request_sense_ptr
= cp
->sense_buffer
;
930 if (sp
->request_sense_length
> 32)
933 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
935 sp
->request_sense_ptr
+= sense_len
;
936 sp
->request_sense_length
-= sense_len
;
937 if (sp
->request_sense_length
!= 0)
940 DEBUG5(printk("%s(): Check condition Sense data, "
941 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
942 __func__
, ha
->host_no
, cp
->device
->channel
,
943 cp
->device
->id
, cp
->device
->lun
, cp
,
947 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
948 CMD_ACTUAL_SNSLEN(cp
)));
951 * If RISC reports underrun and target does not report
952 * it then we must have a lost frame, so tell upper
953 * layer to retry it by reporting a bus busy.
955 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
956 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
957 "frame(s) detected (%x of %x bytes)..."
958 "retrying command.\n", ha
->host_no
,
959 cp
->device
->channel
, cp
->device
->id
,
960 cp
->device
->lun
, resid
,
961 cp
->request_bufflen
));
963 cp
->result
= DID_BUS_BUSY
<< 16;
967 /* Handle mid-layer underflow */
968 if ((unsigned)(cp
->request_bufflen
- resid
) <
970 qla_printk(KERN_INFO
, ha
,
971 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
972 "detected (%x of %x bytes)...returning "
973 "error status.\n", ha
->host_no
,
974 cp
->device
->channel
, cp
->device
->id
,
975 cp
->device
->lun
, resid
,
976 cp
->request_bufflen
);
978 cp
->result
= DID_ERROR
<< 16;
982 /* Everybody online, looking good... */
983 cp
->result
= DID_OK
<< 16;
987 case CS_DATA_OVERRUN
:
988 DEBUG2(printk(KERN_INFO
989 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
990 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
992 DEBUG2(printk(KERN_INFO
993 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
994 cp
->cmnd
[0], cp
->cmnd
[1], cp
->cmnd
[2], cp
->cmnd
[3],
995 cp
->cmnd
[4], cp
->cmnd
[5]));
996 DEBUG2(printk(KERN_INFO
997 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
999 cp
->serial_number
, cp
->request_bufflen
, resid_len
));
1001 cp
->result
= DID_ERROR
<< 16;
1004 case CS_PORT_LOGGED_OUT
:
1005 case CS_PORT_CONFIG_CHG
:
1008 case CS_PORT_UNAVAILABLE
:
1010 * If the port is in Target Down state, return all IOs for this
1011 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1014 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1015 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1016 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
,
1017 cp
->serial_number
, comp_status
,
1018 atomic_read(&fcport
->state
)));
1020 cp
->result
= DID_BUS_BUSY
<< 16;
1021 if (atomic_read(&fcport
->state
) == FCS_ONLINE
) {
1022 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1027 DEBUG2(printk(KERN_INFO
1028 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1029 ha
->host_no
, comp_status
, scsi_status
));
1031 cp
->result
= DID_RESET
<< 16;
1036 * hv2.19.12 - DID_ABORT does not retry the request if we
1037 * aborted this request then abort otherwise it must be a
1040 DEBUG2(printk(KERN_INFO
1041 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1042 ha
->host_no
, comp_status
, scsi_status
));
1044 cp
->result
= DID_RESET
<< 16;
1048 cp
->result
= DID_BUS_BUSY
<< 16;
1050 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
)) {
1051 DEBUG2(printk(KERN_INFO
1052 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1053 "0x%x-0x%x\n", ha
->host_no
, cp
->device
->channel
,
1054 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1058 DEBUG2(printk(KERN_INFO
1059 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1060 "sflags=%x.\n", ha
->host_no
, cp
->device
->channel
,
1061 cp
->device
->id
, cp
->device
->lun
, comp_status
, scsi_status
,
1062 le16_to_cpu(sts
->status_flags
)));
1064 /* Check to see if logout occurred. */
1065 if ((le16_to_cpu(sts
->status_flags
) & SF_LOGOUT_SENT
))
1066 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1070 DEBUG2(printk(KERN_INFO
1071 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1072 ha
->host_no
, comp_status
, scsi_status
));
1074 /* SCSI Mid-Layer handles device queue full */
1076 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1081 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1082 "0x%x-0x%x.\n", ha
->host_no
, comp_status
, scsi_status
));
1083 qla_printk(KERN_INFO
, ha
,
1084 "Unknown status detected 0x%x-0x%x.\n",
1085 comp_status
, scsi_status
);
1087 cp
->result
= DID_ERROR
<< 16;
1091 /* Place command on done queue. */
1092 if (ha
->status_srb
== NULL
)
1093 qla2x00_sp_compl(ha
, sp
);
1097 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1098 * @ha: SCSI driver HA context
1099 * @pkt: Entry pointer
1101 * Extended sense data.
1104 qla2x00_status_cont_entry(scsi_qla_host_t
*ha
, sts_cont_entry_t
*pkt
)
1106 uint8_t sense_sz
= 0;
1107 srb_t
*sp
= ha
->status_srb
;
1108 struct scsi_cmnd
*cp
;
1110 if (sp
!= NULL
&& sp
->request_sense_length
!= 0) {
1113 DEBUG2(printk("%s(): Cmd already returned back to OS "
1114 "sp=%p.\n", __func__
, sp
));
1115 qla_printk(KERN_INFO
, ha
,
1116 "cmd is NULL: already returned to OS (sp=%p)\n",
1119 ha
->status_srb
= NULL
;
1123 if (sp
->request_sense_length
> sizeof(pkt
->data
)) {
1124 sense_sz
= sizeof(pkt
->data
);
1126 sense_sz
= sp
->request_sense_length
;
1129 /* Move sense data. */
1130 if (IS_QLA24XX(ha
) || IS_QLA54XX(ha
))
1131 host_to_fcp_swap(pkt
->data
, sizeof(pkt
->data
));
1132 memcpy(sp
->request_sense_ptr
, pkt
->data
, sense_sz
);
1133 DEBUG5(qla2x00_dump_buffer(sp
->request_sense_ptr
, sense_sz
));
1135 sp
->request_sense_ptr
+= sense_sz
;
1136 sp
->request_sense_length
-= sense_sz
;
1138 /* Place command on done queue. */
1139 if (sp
->request_sense_length
== 0) {
1140 ha
->status_srb
= NULL
;
1141 qla2x00_sp_compl(ha
, sp
);
1147 * qla2x00_error_entry() - Process an error entry.
1148 * @ha: SCSI driver HA context
1149 * @pkt: Entry pointer
1152 qla2x00_error_entry(scsi_qla_host_t
*ha
, sts_entry_t
*pkt
)
1156 #if defined(QL_DEBUG_LEVEL_2)
1157 if (pkt
->entry_status
& RF_INV_E_ORDER
)
1158 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Order\n", __func__
);
1159 else if (pkt
->entry_status
& RF_INV_E_COUNT
)
1160 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Count\n", __func__
);
1161 else if (pkt
->entry_status
& RF_INV_E_PARAM
)
1162 qla_printk(KERN_ERR
, ha
,
1163 "%s: Invalid Entry Parameter\n", __func__
);
1164 else if (pkt
->entry_status
& RF_INV_E_TYPE
)
1165 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Type\n", __func__
);
1166 else if (pkt
->entry_status
& RF_BUSY
)
1167 qla_printk(KERN_ERR
, ha
, "%s: Busy\n", __func__
);
1169 qla_printk(KERN_ERR
, ha
, "%s: UNKNOWN flag error\n", __func__
);
1172 /* Validate handle. */
1173 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1174 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1179 /* Free outstanding command slot. */
1180 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1182 /* Bad payload or header */
1183 if (pkt
->entry_status
&
1184 (RF_INV_E_ORDER
| RF_INV_E_COUNT
|
1185 RF_INV_E_PARAM
| RF_INV_E_TYPE
)) {
1186 sp
->cmd
->result
= DID_ERROR
<< 16;
1187 } else if (pkt
->entry_status
& RF_BUSY
) {
1188 sp
->cmd
->result
= DID_BUS_BUSY
<< 16;
1190 sp
->cmd
->result
= DID_ERROR
<< 16;
1192 qla2x00_sp_compl(ha
, sp
);
1194 } else if (pkt
->entry_type
== COMMAND_A64_TYPE
|| pkt
->entry_type
==
1195 COMMAND_TYPE
|| pkt
->entry_type
== COMMAND_TYPE_7
) {
1196 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1198 qla_printk(KERN_WARNING
, ha
,
1199 "Error entry - invalid handle\n");
1201 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1202 qla2xxx_wake_dpc(ha
);
1207 * qla2x00_ms_entry() - Process a Management Server entry.
1208 * @ha: SCSI driver HA context
1209 * @index: Response queue out pointer
1212 qla2x00_ms_entry(scsi_qla_host_t
*ha
, ms_iocb_entry_t
*pkt
)
1216 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1217 __func__
, ha
->host_no
, pkt
, pkt
->handle1
));
1219 /* Validate handle. */
1220 if (pkt
->handle1
< MAX_OUTSTANDING_COMMANDS
)
1221 sp
= ha
->outstanding_cmds
[pkt
->handle1
];
1226 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1228 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle\n");
1230 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1234 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->status
);
1235 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1237 /* Free outstanding command slot. */
1238 ha
->outstanding_cmds
[pkt
->handle1
] = NULL
;
1240 qla2x00_sp_compl(ha
, sp
);
1245 * qla24xx_mbx_completion() - Process mailbox command completions.
1246 * @ha: SCSI driver HA context
1247 * @mb0: Mailbox0 register
1250 qla24xx_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
1253 uint16_t __iomem
*wptr
;
1254 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1256 /* Load return mailbox registers. */
1257 ha
->flags
.mbox_int
= 1;
1258 ha
->mailbox_out
[0] = mb0
;
1259 wptr
= (uint16_t __iomem
*)®
->mailbox1
;
1261 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
1262 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
1267 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1268 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
1270 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1271 __func__
, ha
->host_no
));
1276 * qla24xx_process_response_queue() - Process response queue entries.
1277 * @ha: SCSI driver HA context
1280 qla24xx_process_response_queue(struct scsi_qla_host
*ha
)
1282 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1283 struct sts_entry_24xx
*pkt
;
1285 if (!ha
->flags
.online
)
1288 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
1289 pkt
= (struct sts_entry_24xx
*)ha
->response_ring_ptr
;
1291 ha
->rsp_ring_index
++;
1292 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
1293 ha
->rsp_ring_index
= 0;
1294 ha
->response_ring_ptr
= ha
->response_ring
;
1296 ha
->response_ring_ptr
++;
1299 if (pkt
->entry_status
!= 0) {
1300 DEBUG3(printk(KERN_INFO
1301 "scsi(%ld): Process error entry.\n", ha
->host_no
));
1303 qla2x00_error_entry(ha
, (sts_entry_t
*) pkt
);
1304 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1309 switch (pkt
->entry_type
) {
1311 qla2x00_status_entry(ha
, pkt
);
1313 case STATUS_CONT_TYPE
:
1314 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
1317 qla24xx_ms_entry(ha
, (struct ct_entry_24xx
*)pkt
);
1320 /* Type Not Supported. */
1321 DEBUG4(printk(KERN_WARNING
1322 "scsi(%ld): Received unknown response pkt type %x "
1323 "entry status=%x.\n",
1324 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
1327 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1331 /* Adjust ring index */
1332 WRT_REG_DWORD(®
->rsp_q_out
, ha
->rsp_ring_index
);
1336 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1338 * @dev_id: SCSI driver HA context
1340 * Called by system whenever the host adapter generates an interrupt.
1342 * Returns handled flag.
1345 qla24xx_intr_handler(int irq
, void *dev_id
)
1347 scsi_qla_host_t
*ha
;
1348 struct device_reg_24xx __iomem
*reg
;
1350 unsigned long flags
;
1356 ha
= (scsi_qla_host_t
*) dev_id
;
1359 "%s(): NULL host pointer\n", __func__
);
1363 reg
= &ha
->iobase
->isp24
;
1366 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1367 for (iter
= 50; iter
--; ) {
1368 stat
= RD_REG_DWORD(®
->host_status
);
1369 if (stat
& HSRX_RISC_PAUSED
) {
1370 hccr
= RD_REG_DWORD(®
->hccr
);
1372 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1373 "Dumping firmware!\n", hccr
);
1374 qla24xx_fw_dump(ha
, 1);
1376 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1378 } else if ((stat
& HSRX_RISC_INT
) == 0)
1381 switch (stat
& 0xff) {
1386 qla24xx_mbx_completion(ha
, MSW(stat
));
1387 status
|= MBX_INTERRUPT
;
1392 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1393 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1394 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1395 qla2x00_async_event(ha
, mb
);
1398 qla24xx_process_response_queue(ha
);
1401 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1403 ha
->host_no
, stat
& 0xff));
1406 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1407 RD_REG_DWORD_RELAXED(®
->hccr
);
1409 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1411 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1412 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1413 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
1415 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1416 up(&ha
->mbx_intr_sem
);
1418 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
1425 * qla24xx_ms_entry() - Process a Management Server entry.
1426 * @ha: SCSI driver HA context
1427 * @index: Response queue out pointer
1430 qla24xx_ms_entry(scsi_qla_host_t
*ha
, struct ct_entry_24xx
*pkt
)
1434 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1435 __func__
, ha
->host_no
, pkt
, pkt
->handle
));
1437 DEBUG9(printk("%s: ct pkt dump:\n", __func__
));
1438 DEBUG9(qla2x00_dump_buffer((void *)pkt
, sizeof(struct ct_entry_24xx
)));
1440 /* Validate handle. */
1441 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1442 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1447 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1449 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
1451 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle %d\n",
1454 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1458 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->comp_status
);
1459 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1461 /* Free outstanding command slot. */
1462 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1464 qla2x00_sp_compl(ha
, sp
);