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_QLA25XX(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
);
395 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
397 ha
->flags
.management_server_logged_in
= 0;
399 /* Update AEN queue. */
400 qla2x00_enqueue_aen(ha
, MBA_LIP_OCCURRED
, NULL
);
404 case MBA_LOOP_UP
: /* Loop Up Event */
405 ha
->link_data_rate
= 0;
406 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
407 link_speed
= link_speeds
[0];
409 link_speed
= link_speeds
[LS_UNKNOWN
];
411 link_speed
= link_speeds
[mb
[1]];
412 ha
->link_data_rate
= mb
[1];
415 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
416 ha
->host_no
, link_speed
));
417 qla_printk(KERN_INFO
, ha
, "LOOP UP detected (%s Gbps).\n",
420 ha
->flags
.management_server_logged_in
= 0;
422 /* Update AEN queue. */
423 qla2x00_enqueue_aen(ha
, MBA_LOOP_UP
, NULL
);
426 case MBA_LOOP_DOWN
: /* Loop Down Event */
427 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n",
428 ha
->host_no
, mb
[1]));
429 qla_printk(KERN_INFO
, ha
, "LOOP DOWN detected (%x).\n", mb
[1]);
431 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
432 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
433 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
434 ha
->device_flags
|= DFLG_NO_CABLE
;
435 qla2x00_mark_all_devices_lost(ha
);
438 ha
->flags
.management_server_logged_in
= 0;
439 ha
->link_data_rate
= 0;
441 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
443 /* Update AEN queue. */
444 qla2x00_enqueue_aen(ha
, MBA_LOOP_DOWN
, NULL
);
447 case MBA_LIP_RESET
: /* LIP reset occurred */
448 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
449 ha
->host_no
, mb
[1]));
450 qla_printk(KERN_INFO
, ha
,
451 "LIP reset occured (%x).\n", mb
[1]);
453 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
454 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
455 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
456 qla2x00_mark_all_devices_lost(ha
);
459 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
461 ha
->operating_mode
= LOOP
;
462 ha
->flags
.management_server_logged_in
= 0;
464 /* Update AEN queue. */
465 qla2x00_enqueue_aen(ha
, MBA_LIP_RESET
, NULL
);
469 case MBA_POINT_TO_POINT
: /* Point-to-Point */
473 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
477 * Until there's a transition from loop down to loop up, treat
478 * this as loop down only.
480 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
481 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
482 if (!atomic_read(&ha
->loop_down_timer
))
483 atomic_set(&ha
->loop_down_timer
,
485 qla2x00_mark_all_devices_lost(ha
);
488 if (!(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
489 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
491 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
494 case MBA_CHG_IN_CONNECTION
: /* Change in connection mode */
498 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
501 qla_printk(KERN_INFO
, ha
,
502 "Configuration change detected: value=%x.\n", mb
[1]);
504 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
505 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
506 if (!atomic_read(&ha
->loop_down_timer
))
507 atomic_set(&ha
->loop_down_timer
,
509 qla2x00_mark_all_devices_lost(ha
);
512 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
513 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
516 case MBA_PORT_UPDATE
: /* Port database update */
518 * If a single remote port just logged into (or logged out of)
519 * us, create a new entry in our rscn fcports list and handle
520 * the event like an RSCN.
522 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
) && !IS_QLA6312(ha
) &&
523 !IS_QLA6322(ha
) && !IS_QLA24XX(ha
) && !IS_QLA25XX(ha
) &&
524 ha
->flags
.init_done
&& mb
[1] != 0xffff &&
525 ((ha
->operating_mode
== P2P
&& mb
[1] != 0) ||
526 (ha
->operating_mode
!= P2P
&& mb
[1] !=
527 SNS_FIRST_LOOP_ID
)) && (mb
[2] == 6 || mb
[2] == 7)) {
529 fc_port_t
*rscn_fcport
;
531 /* Create new fcport for login. */
532 rscn_fcport
= qla2x00_alloc_rscn_fcport(ha
, GFP_ATOMIC
);
534 DEBUG14(printk("scsi(%ld): Port Update -- "
535 "creating RSCN fcport %p for %x/%x/%x.\n",
536 ha
->host_no
, rscn_fcport
, mb
[1], mb
[2],
539 rscn_fcport
->loop_id
= mb
[1];
540 rscn_fcport
->d_id
.b24
= INVALID_PORT_ID
;
541 atomic_set(&rscn_fcport
->state
,
543 list_add_tail(&rscn_fcport
->list
,
546 rval
= qla2x00_handle_port_rscn(ha
, 0,
548 if (rval
== QLA_SUCCESS
)
551 DEBUG14(printk("scsi(%ld): Port Update -- "
552 "-- unable to allocate RSCN fcport "
553 "login.\n", ha
->host_no
));
558 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
559 * event etc. earlier indicating loop is down) then process
560 * it. Otherwise ignore it and Wait for RSCN to come in.
562 atomic_set(&ha
->loop_down_timer
, 0);
563 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
&&
564 atomic_read(&ha
->loop_state
) != LOOP_DEAD
) {
565 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
566 "ignored %04x/%04x/%04x.\n", ha
->host_no
, mb
[1],
571 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
573 DEBUG(printk(KERN_INFO
574 "scsi(%ld): Port database changed %04x %04x %04x.\n",
575 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
578 * Mark all devices as missing so we will login again.
580 atomic_set(&ha
->loop_state
, LOOP_UP
);
582 qla2x00_mark_all_devices_lost(ha
);
584 ha
->flags
.rscn_queue_overflow
= 1;
586 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
587 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
589 /* Update AEN queue. */
590 qla2x00_enqueue_aen(ha
, MBA_PORT_UPDATE
, NULL
);
593 case MBA_RSCN_UPDATE
: /* State Change Registration */
594 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
596 DEBUG(printk(KERN_INFO
597 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
598 ha
->host_no
, mb
[1], mb
[2]));
600 rscn_entry
= (mb
[1] << 16) | mb
[2];
601 host_pid
= (ha
->d_id
.b
.domain
<< 16) | (ha
->d_id
.b
.area
<< 8) |
603 if (rscn_entry
== host_pid
) {
604 DEBUG(printk(KERN_INFO
605 "scsi(%ld): Ignoring RSCN update to local host "
607 ha
->host_no
, host_pid
));
611 rscn_queue_index
= ha
->rscn_in_ptr
+ 1;
612 if (rscn_queue_index
== MAX_RSCN_COUNT
)
613 rscn_queue_index
= 0;
614 if (rscn_queue_index
!= ha
->rscn_out_ptr
) {
615 ha
->rscn_queue
[ha
->rscn_in_ptr
] = rscn_entry
;
616 ha
->rscn_in_ptr
= rscn_queue_index
;
618 ha
->flags
.rscn_queue_overflow
= 1;
621 atomic_set(&ha
->loop_state
, LOOP_UPDATE
);
622 atomic_set(&ha
->loop_down_timer
, 0);
623 ha
->flags
.management_server_logged_in
= 0;
625 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
626 set_bit(RSCN_UPDATE
, &ha
->dpc_flags
);
628 /* Update AEN queue. */
629 qla2x00_enqueue_aen(ha
, MBA_RSCN_UPDATE
, &mb
[0]);
632 /* case MBA_RIO_RESPONSE: */
633 case MBA_ZIO_RESPONSE
:
634 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
636 DEBUG(printk(KERN_INFO
637 "scsi(%ld): [R|Z]IO update completion.\n",
640 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
))
641 qla24xx_process_response_queue(ha
);
643 qla2x00_process_response_queue(ha
);
646 case MBA_DISCARD_RND_FRAME
:
647 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
648 "%04x.\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
654 * qla2x00_process_completed_request() - Process a Fast Post response.
655 * @ha: SCSI driver HA context
659 qla2x00_process_completed_request(struct scsi_qla_host
*ha
, uint32_t index
)
663 /* Validate handle. */
664 if (index
>= MAX_OUTSTANDING_COMMANDS
) {
665 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
666 ha
->host_no
, index
));
667 qla_printk(KERN_WARNING
, ha
,
668 "Invalid SCSI completion handle %d.\n", index
);
670 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
674 sp
= ha
->outstanding_cmds
[index
];
676 /* Free outstanding command slot. */
677 ha
->outstanding_cmds
[index
] = NULL
;
679 CMD_COMPL_STATUS(sp
->cmd
) = 0L;
680 CMD_SCSI_STATUS(sp
->cmd
) = 0L;
682 /* Save ISP completion status */
683 sp
->cmd
->result
= DID_OK
<< 16;
684 qla2x00_sp_compl(ha
, sp
);
686 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
688 qla_printk(KERN_WARNING
, ha
,
689 "Invalid ISP SCSI completion handle\n");
691 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
696 * qla2x00_process_response_queue() - Process response queue entries.
697 * @ha: SCSI driver HA context
700 qla2x00_process_response_queue(struct scsi_qla_host
*ha
)
702 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
707 if (!ha
->flags
.online
)
710 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
711 pkt
= (sts_entry_t
*)ha
->response_ring_ptr
;
713 ha
->rsp_ring_index
++;
714 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
715 ha
->rsp_ring_index
= 0;
716 ha
->response_ring_ptr
= ha
->response_ring
;
718 ha
->response_ring_ptr
++;
721 if (pkt
->entry_status
!= 0) {
722 DEBUG3(printk(KERN_INFO
723 "scsi(%ld): Process error entry.\n", ha
->host_no
));
725 qla2x00_error_entry(ha
, pkt
);
726 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
731 switch (pkt
->entry_type
) {
733 qla2x00_status_entry(ha
, pkt
);
736 handle_cnt
= ((sts21_entry_t
*)pkt
)->handle_count
;
737 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
738 qla2x00_process_completed_request(ha
,
739 ((sts21_entry_t
*)pkt
)->handle
[cnt
]);
743 handle_cnt
= ((sts22_entry_t
*)pkt
)->handle_count
;
744 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
745 qla2x00_process_completed_request(ha
,
746 ((sts22_entry_t
*)pkt
)->handle
[cnt
]);
749 case STATUS_CONT_TYPE
:
750 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
753 qla2x00_ms_entry(ha
, (ms_iocb_entry_t
*)pkt
);
756 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
) &&
757 !IS_QLA6312(ha
) && !IS_QLA6322(ha
)) {
758 if (pkt
->sys_define
== SOURCE_ASYNC_IOCB
) {
759 qla2x00_process_iodesc(ha
,
760 (struct mbx_entry
*)pkt
);
762 /* MBX IOCB Type Not Supported. */
763 DEBUG4(printk(KERN_WARNING
764 "scsi(%ld): Received unknown MBX "
765 "IOCB response pkt type=%x "
766 "source=%x entry status=%x.\n",
767 ha
->host_no
, pkt
->entry_type
,
775 /* Type Not Supported. */
776 DEBUG4(printk(KERN_WARNING
777 "scsi(%ld): Received unknown response pkt type %x "
778 "entry status=%x.\n",
779 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
782 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
786 /* Adjust ring index */
787 WRT_REG_WORD(ISP_RSP_Q_OUT(ha
, reg
), ha
->rsp_ring_index
);
791 * qla2x00_status_entry() - Process a Status IOCB entry.
792 * @ha: SCSI driver HA context
793 * @pkt: Entry pointer
796 qla2x00_status_entry(scsi_qla_host_t
*ha
, void *pkt
)
800 struct scsi_cmnd
*cp
;
802 struct sts_entry_24xx
*sts24
;
803 uint16_t comp_status
;
804 uint16_t scsi_status
;
805 uint8_t lscsi_status
;
807 uint32_t sense_len
, rsp_info_len
, resid_len
;
808 uint8_t *rsp_info
, *sense_data
;
810 sts
= (sts_entry_t
*) pkt
;
811 sts24
= (struct sts_entry_24xx
*) pkt
;
812 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
813 comp_status
= le16_to_cpu(sts24
->comp_status
);
814 scsi_status
= le16_to_cpu(sts24
->scsi_status
) & SS_MASK
;
816 comp_status
= le16_to_cpu(sts
->comp_status
);
817 scsi_status
= le16_to_cpu(sts
->scsi_status
) & SS_MASK
;
820 /* Fast path completion. */
821 if (comp_status
== CS_COMPLETE
&& scsi_status
== 0) {
822 qla2x00_process_completed_request(ha
, sts
->handle
);
827 /* Validate handle. */
828 if (sts
->handle
< MAX_OUTSTANDING_COMMANDS
) {
829 sp
= ha
->outstanding_cmds
[sts
->handle
];
830 ha
->outstanding_cmds
[sts
->handle
] = NULL
;
835 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
837 qla_printk(KERN_WARNING
, ha
, "Status Entry invalid handle.\n");
839 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
840 if (ha
->dpc_wait
&& !ha
->dpc_active
)
847 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
848 "pkt->handle=%d sp=%p sp->state:%d\n",
849 ha
->host_no
, sts
->handle
, sp
, sp
->state
));
850 qla_printk(KERN_WARNING
, ha
,
851 "Command is NULL: already returned to OS (sp=%p)\n", sp
);
856 lscsi_status
= scsi_status
& STATUS_MASK
;
857 CMD_ENTRY_STATUS(cp
) = sts
->entry_status
;
858 CMD_COMPL_STATUS(cp
) = comp_status
;
859 CMD_SCSI_STATUS(cp
) = scsi_status
;
863 sense_len
= rsp_info_len
= resid_len
= 0;
864 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
865 sense_len
= le32_to_cpu(sts24
->sense_len
);
866 rsp_info_len
= le32_to_cpu(sts24
->rsp_data_len
);
867 resid_len
= le32_to_cpu(sts24
->rsp_residual_count
);
868 rsp_info
= sts24
->data
;
869 sense_data
= sts24
->data
;
870 host_to_fcp_swap(sts24
->data
, sizeof(sts24
->data
));
872 sense_len
= le16_to_cpu(sts
->req_sense_length
);
873 rsp_info_len
= le16_to_cpu(sts
->rsp_info_len
);
874 resid_len
= le32_to_cpu(sts
->residual_length
);
875 rsp_info
= sts
->rsp_info
;
876 sense_data
= sts
->req_sense_data
;
879 /* Check for any FCP transport errors. */
880 if (scsi_status
& SS_RESPONSE_INFO_LEN_VALID
) {
881 /* Sense data lies beyond any FCP RESPONSE data. */
882 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
))
883 sense_data
+= rsp_info_len
;
884 if (rsp_info_len
> 3 && rsp_info
[3]) {
885 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
886 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
887 "retrying command\n", ha
->host_no
,
888 cp
->device
->channel
, cp
->device
->id
,
889 cp
->device
->lun
, rsp_info_len
, rsp_info
[0],
890 rsp_info
[1], rsp_info
[2], rsp_info
[3], rsp_info
[4],
891 rsp_info
[5], rsp_info
[6], rsp_info
[7]));
893 cp
->result
= DID_BUS_BUSY
<< 16;
894 qla2x00_sp_compl(ha
, sp
);
900 * Based on Host and scsi status generate status code for Linux
902 switch (comp_status
) {
904 if (scsi_status
== 0) {
905 cp
->result
= DID_OK
<< 16;
908 if (scsi_status
& (SS_RESIDUAL_UNDER
| SS_RESIDUAL_OVER
)) {
911 CMD_RESID_LEN(cp
) = resid
;
913 cp
->result
= DID_OK
<< 16 | lscsi_status
;
915 if (lscsi_status
!= SS_CHECK_CONDITION
)
918 /* Copy Sense Data into sense buffer. */
919 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
921 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
924 if (sense_len
>= sizeof(cp
->sense_buffer
))
925 sense_len
= sizeof(cp
->sense_buffer
);
927 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
928 sp
->request_sense_length
= sense_len
;
929 sp
->request_sense_ptr
= cp
->sense_buffer
;
931 if (sp
->request_sense_length
> 32)
934 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
936 sp
->request_sense_ptr
+= sense_len
;
937 sp
->request_sense_length
-= sense_len
;
938 if (sp
->request_sense_length
!= 0)
941 DEBUG5(printk("%s(): Check condition Sense data, "
942 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__
,
943 ha
->host_no
, cp
->device
->channel
, cp
->device
->id
,
944 cp
->device
->lun
, cp
, cp
->serial_number
));
946 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
947 CMD_ACTUAL_SNSLEN(cp
)));
950 case CS_DATA_UNDERRUN
:
951 DEBUG2(printk(KERN_INFO
952 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n",
953 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
957 if (scsi_status
& SS_RESIDUAL_UNDER
) {
959 CMD_RESID_LEN(cp
) = resid
;
963 * Check to see if SCSI Status is non zero. If so report SCSI
966 if (lscsi_status
!= 0) {
967 cp
->result
= DID_OK
<< 16 | lscsi_status
;
969 if (lscsi_status
!= SS_CHECK_CONDITION
)
972 /* Copy Sense Data into sense buffer */
973 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
975 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
978 if (sense_len
>= sizeof(cp
->sense_buffer
))
979 sense_len
= sizeof(cp
->sense_buffer
);
981 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
982 sp
->request_sense_length
= sense_len
;
983 sp
->request_sense_ptr
= cp
->sense_buffer
;
985 if (sp
->request_sense_length
> 32)
988 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
990 sp
->request_sense_ptr
+= sense_len
;
991 sp
->request_sense_length
-= sense_len
;
992 if (sp
->request_sense_length
!= 0)
995 DEBUG5(printk("%s(): Check condition Sense data, "
996 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
997 __func__
, ha
->host_no
, cp
->device
->channel
,
998 cp
->device
->id
, cp
->device
->lun
, cp
,
1002 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
1003 CMD_ACTUAL_SNSLEN(cp
)));
1006 * If RISC reports underrun and target does not report
1007 * it then we must have a lost frame, so tell upper
1008 * layer to retry it by reporting a bus busy.
1010 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
1011 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1012 "frame(s) detected (%x of %x bytes)..."
1013 "retrying command.\n", ha
->host_no
,
1014 cp
->device
->channel
, cp
->device
->id
,
1015 cp
->device
->lun
, resid
,
1016 cp
->request_bufflen
));
1018 cp
->result
= DID_BUS_BUSY
<< 16;
1022 /* Handle mid-layer underflow */
1023 if ((unsigned)(cp
->request_bufflen
- 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
,
1031 cp
->request_bufflen
);
1033 cp
->result
= DID_ERROR
<< 16;
1037 /* Everybody online, looking good... */
1038 cp
->result
= DID_OK
<< 16;
1042 case CS_DATA_OVERRUN
:
1043 DEBUG2(printk(KERN_INFO
1044 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1045 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
1047 DEBUG2(printk(KERN_INFO
1048 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1049 cp
->cmnd
[0], cp
->cmnd
[1], cp
->cmnd
[2], cp
->cmnd
[3],
1050 cp
->cmnd
[4], cp
->cmnd
[5]));
1051 DEBUG2(printk(KERN_INFO
1052 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1054 cp
->serial_number
, cp
->request_bufflen
, resid_len
));
1056 cp
->result
= DID_ERROR
<< 16;
1059 case CS_PORT_LOGGED_OUT
:
1060 case CS_PORT_CONFIG_CHG
:
1063 case CS_PORT_UNAVAILABLE
:
1065 * If the port is in Target Down state, return all IOs for this
1066 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1069 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1070 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1071 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
,
1072 cp
->serial_number
, comp_status
,
1073 atomic_read(&fcport
->state
)));
1075 cp
->result
= DID_BUS_BUSY
<< 16;
1076 if (atomic_read(&fcport
->state
) == FCS_ONLINE
) {
1077 qla2x00_mark_device_lost(ha
, fcport
, 1);
1082 DEBUG2(printk(KERN_INFO
1083 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1084 ha
->host_no
, comp_status
, scsi_status
));
1086 cp
->result
= DID_RESET
<< 16;
1091 * hv2.19.12 - DID_ABORT does not retry the request if we
1092 * aborted this request then abort otherwise it must be a
1095 DEBUG2(printk(KERN_INFO
1096 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1097 ha
->host_no
, comp_status
, scsi_status
));
1099 cp
->result
= DID_RESET
<< 16;
1103 cp
->result
= DID_BUS_BUSY
<< 16;
1105 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
)) {
1106 DEBUG2(printk(KERN_INFO
1107 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1108 "0x%x-0x%x\n", ha
->host_no
, cp
->device
->channel
,
1109 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1113 DEBUG2(printk(KERN_INFO
1114 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1115 "sflags=%x.\n", ha
->host_no
, cp
->device
->channel
,
1116 cp
->device
->id
, cp
->device
->lun
, comp_status
, scsi_status
,
1117 le16_to_cpu(sts
->status_flags
)));
1119 /* Check to see if logout occurred. */
1120 if ((le16_to_cpu(sts
->status_flags
) & SF_LOGOUT_SENT
))
1121 qla2x00_mark_device_lost(ha
, fcport
, 1);
1125 DEBUG2(printk(KERN_INFO
1126 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1127 ha
->host_no
, comp_status
, scsi_status
));
1129 /* SCSI Mid-Layer handles device queue full */
1131 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1136 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1137 "0x%x-0x%x.\n", ha
->host_no
, comp_status
, scsi_status
));
1138 qla_printk(KERN_INFO
, ha
,
1139 "Unknown status detected 0x%x-0x%x.\n",
1140 comp_status
, scsi_status
);
1142 cp
->result
= DID_ERROR
<< 16;
1146 /* Place command on done queue. */
1147 if (ha
->status_srb
== NULL
)
1148 qla2x00_sp_compl(ha
, sp
);
1152 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1153 * @ha: SCSI driver HA context
1154 * @pkt: Entry pointer
1156 * Extended sense data.
1159 qla2x00_status_cont_entry(scsi_qla_host_t
*ha
, sts_cont_entry_t
*pkt
)
1161 uint8_t sense_sz
= 0;
1162 srb_t
*sp
= ha
->status_srb
;
1163 struct scsi_cmnd
*cp
;
1165 if (sp
!= NULL
&& sp
->request_sense_length
!= 0) {
1168 DEBUG2(printk("%s(): Cmd already returned back to OS "
1169 "sp=%p sp->state:%d\n", __func__
, sp
, sp
->state
));
1170 qla_printk(KERN_INFO
, ha
,
1171 "cmd is NULL: already returned to OS (sp=%p)\n",
1174 ha
->status_srb
= NULL
;
1178 if (sp
->request_sense_length
> sizeof(pkt
->data
)) {
1179 sense_sz
= sizeof(pkt
->data
);
1181 sense_sz
= sp
->request_sense_length
;
1184 /* Move sense data. */
1185 if (IS_QLA24XX(ha
) || IS_QLA25XX(ha
))
1186 host_to_fcp_swap(pkt
->data
, sizeof(pkt
->data
));
1187 memcpy(sp
->request_sense_ptr
, pkt
->data
, sense_sz
);
1188 DEBUG5(qla2x00_dump_buffer(sp
->request_sense_ptr
, sense_sz
));
1190 sp
->request_sense_ptr
+= sense_sz
;
1191 sp
->request_sense_length
-= sense_sz
;
1193 /* Place command on done queue. */
1194 if (sp
->request_sense_length
== 0) {
1195 ha
->status_srb
= NULL
;
1196 qla2x00_sp_compl(ha
, sp
);
1202 * qla2x00_error_entry() - Process an error entry.
1203 * @ha: SCSI driver HA context
1204 * @pkt: Entry pointer
1207 qla2x00_error_entry(scsi_qla_host_t
*ha
, sts_entry_t
*pkt
)
1211 #if defined(QL_DEBUG_LEVEL_2)
1212 if (pkt
->entry_status
& RF_INV_E_ORDER
)
1213 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Order\n", __func__
);
1214 else if (pkt
->entry_status
& RF_INV_E_COUNT
)
1215 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Count\n", __func__
);
1216 else if (pkt
->entry_status
& RF_INV_E_PARAM
)
1217 qla_printk(KERN_ERR
, ha
,
1218 "%s: Invalid Entry Parameter\n", __func__
);
1219 else if (pkt
->entry_status
& RF_INV_E_TYPE
)
1220 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Type\n", __func__
);
1221 else if (pkt
->entry_status
& RF_BUSY
)
1222 qla_printk(KERN_ERR
, ha
, "%s: Busy\n", __func__
);
1224 qla_printk(KERN_ERR
, ha
, "%s: UNKNOWN flag error\n", __func__
);
1227 /* Validate handle. */
1228 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1229 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1234 /* Free outstanding command slot. */
1235 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1237 /* Bad payload or header */
1238 if (pkt
->entry_status
&
1239 (RF_INV_E_ORDER
| RF_INV_E_COUNT
|
1240 RF_INV_E_PARAM
| RF_INV_E_TYPE
)) {
1241 sp
->cmd
->result
= DID_ERROR
<< 16;
1242 } else if (pkt
->entry_status
& RF_BUSY
) {
1243 sp
->cmd
->result
= DID_BUS_BUSY
<< 16;
1245 sp
->cmd
->result
= DID_ERROR
<< 16;
1247 qla2x00_sp_compl(ha
, sp
);
1249 } else if (pkt
->entry_type
== COMMAND_A64_TYPE
|| pkt
->entry_type
==
1250 COMMAND_TYPE
|| pkt
->entry_type
== COMMAND_TYPE_7
) {
1251 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1253 qla_printk(KERN_WARNING
, ha
,
1254 "Error entry - invalid handle\n");
1256 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1257 if (ha
->dpc_wait
&& !ha
->dpc_active
)
1263 * qla2x00_ms_entry() - Process a Management Server entry.
1264 * @ha: SCSI driver HA context
1265 * @index: Response queue out pointer
1268 qla2x00_ms_entry(scsi_qla_host_t
*ha
, ms_iocb_entry_t
*pkt
)
1272 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1273 __func__
, ha
->host_no
, pkt
, pkt
->handle1
));
1275 /* Validate handle. */
1276 if (pkt
->handle1
< MAX_OUTSTANDING_COMMANDS
)
1277 sp
= ha
->outstanding_cmds
[pkt
->handle1
];
1282 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1284 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle\n");
1286 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1290 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->status
);
1291 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1293 /* Free outstanding command slot. */
1294 ha
->outstanding_cmds
[pkt
->handle1
] = NULL
;
1296 qla2x00_sp_compl(ha
, sp
);
1301 * qla24xx_mbx_completion() - Process mailbox command completions.
1302 * @ha: SCSI driver HA context
1303 * @mb0: Mailbox0 register
1306 qla24xx_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
1309 uint16_t __iomem
*wptr
;
1310 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1312 /* Load return mailbox registers. */
1313 ha
->flags
.mbox_int
= 1;
1314 ha
->mailbox_out
[0] = mb0
;
1315 wptr
= (uint16_t __iomem
*)®
->mailbox1
;
1317 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
1318 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
1323 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1324 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
1326 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1327 __func__
, ha
->host_no
));
1332 * qla24xx_process_response_queue() - Process response queue entries.
1333 * @ha: SCSI driver HA context
1336 qla24xx_process_response_queue(struct scsi_qla_host
*ha
)
1338 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1339 struct sts_entry_24xx
*pkt
;
1341 if (!ha
->flags
.online
)
1344 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
1345 pkt
= (struct sts_entry_24xx
*)ha
->response_ring_ptr
;
1347 ha
->rsp_ring_index
++;
1348 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
1349 ha
->rsp_ring_index
= 0;
1350 ha
->response_ring_ptr
= ha
->response_ring
;
1352 ha
->response_ring_ptr
++;
1355 if (pkt
->entry_status
!= 0) {
1356 DEBUG3(printk(KERN_INFO
1357 "scsi(%ld): Process error entry.\n", ha
->host_no
));
1359 qla2x00_error_entry(ha
, (sts_entry_t
*) pkt
);
1360 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1365 switch (pkt
->entry_type
) {
1367 qla2x00_status_entry(ha
, pkt
);
1369 case STATUS_CONT_TYPE
:
1370 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
1373 qla24xx_ms_entry(ha
, (struct ct_entry_24xx
*)pkt
);
1376 /* Type Not Supported. */
1377 DEBUG4(printk(KERN_WARNING
1378 "scsi(%ld): Received unknown response pkt type %x "
1379 "entry status=%x.\n",
1380 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
1383 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1387 /* Adjust ring index */
1388 WRT_REG_DWORD(®
->rsp_q_out
, ha
->rsp_ring_index
);
1392 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1394 * @dev_id: SCSI driver HA context
1397 * Called by system whenever the host adapter generates an interrupt.
1399 * Returns handled flag.
1402 qla24xx_intr_handler(int irq
, void *dev_id
, struct pt_regs
*regs
)
1404 scsi_qla_host_t
*ha
;
1405 struct device_reg_24xx __iomem
*reg
;
1407 unsigned long flags
;
1413 ha
= (scsi_qla_host_t
*) dev_id
;
1416 "%s(): NULL host pointer\n", __func__
);
1420 reg
= &ha
->iobase
->isp24
;
1423 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1424 for (iter
= 50; iter
--; ) {
1425 stat
= RD_REG_DWORD(®
->host_status
);
1426 if (stat
& HSRX_RISC_PAUSED
) {
1427 hccr
= RD_REG_DWORD(®
->hccr
);
1429 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1430 "Dumping firmware!\n", hccr
);
1431 qla24xx_fw_dump(ha
, 1);
1433 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1435 } else if ((stat
& HSRX_RISC_INT
) == 0)
1438 switch (stat
& 0xff) {
1443 qla24xx_mbx_completion(ha
, MSW(stat
));
1444 status
|= MBX_INTERRUPT
;
1449 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1450 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1451 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1452 qla2x00_async_event(ha
, mb
);
1455 qla24xx_process_response_queue(ha
);
1458 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1460 ha
->host_no
, stat
& 0xff));
1463 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1464 RD_REG_DWORD_RELAXED(®
->hccr
);
1466 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1468 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1469 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1470 spin_lock_irqsave(&ha
->mbx_reg_lock
, flags
);
1472 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1473 up(&ha
->mbx_intr_sem
);
1475 spin_unlock_irqrestore(&ha
->mbx_reg_lock
, flags
);
1482 * qla24xx_ms_entry() - Process a Management Server entry.
1483 * @ha: SCSI driver HA context
1484 * @index: Response queue out pointer
1487 qla24xx_ms_entry(scsi_qla_host_t
*ha
, struct ct_entry_24xx
*pkt
)
1491 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1492 __func__
, ha
->host_no
, pkt
, pkt
->handle
));
1494 DEBUG9(printk("%s: ct pkt dump:\n", __func__
);)
1495 DEBUG9(qla2x00_dump_buffer((void *)pkt
, sizeof(struct ct_entry_24xx
));)
1497 /* Validate handle. */
1498 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1499 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1504 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1506 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
1508 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle %d\n",
1511 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1515 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->comp_status
);
1516 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1518 /* Free outstanding command slot. */
1519 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1521 qla2x00_sp_compl(ha
, sp
);