2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
5 * See LICENSE.qla2xxx for copyright and licensing details.
9 #include <scsi/scsi_tcq.h>
11 static void qla2x00_mbx_completion(scsi_qla_host_t
*, uint16_t);
12 static void qla2x00_process_completed_request(struct scsi_qla_host
*, uint32_t);
13 static void qla2x00_status_entry(scsi_qla_host_t
*, void *);
14 static void qla2x00_status_cont_entry(scsi_qla_host_t
*, sts_cont_entry_t
*);
15 static void qla2x00_error_entry(scsi_qla_host_t
*, sts_entry_t
*);
16 static void qla2x00_ms_entry(scsi_qla_host_t
*, ms_iocb_entry_t
*);
18 static void qla24xx_ms_entry(scsi_qla_host_t
*, struct ct_entry_24xx
*);
21 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
23 * @dev_id: SCSI driver HA context
25 * Called by system whenever the host adapter generates an interrupt.
27 * Returns handled flag.
30 qla2100_intr_handler(int irq
, void *dev_id
)
33 struct 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 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
89 up(&ha
->mbx_intr_sem
);
96 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
98 * @dev_id: SCSI driver HA context
100 * Called by system whenever the host adapter generates an interrupt.
102 * Returns handled flag.
105 qla2300_intr_handler(int irq
, void *dev_id
)
108 struct device_reg_2xxx __iomem
*reg
;
116 ha
= (scsi_qla_host_t
*) dev_id
;
119 "%s(): NULL host pointer\n", __func__
);
123 reg
= &ha
->iobase
->isp
;
126 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
127 for (iter
= 50; iter
--; ) {
128 stat
= RD_REG_DWORD(®
->u
.isp2300
.host_status
);
129 if (stat
& HSR_RISC_PAUSED
) {
130 hccr
= RD_REG_WORD(®
->hccr
);
131 if (hccr
& (BIT_15
| BIT_13
| BIT_11
| BIT_8
))
132 qla_printk(KERN_INFO
, ha
, "Parity error -- "
133 "HCCR=%x, Dumping firmware!\n", hccr
);
135 qla_printk(KERN_INFO
, ha
, "RISC paused -- "
136 "HCCR=%x, Dumping firmware!\n", hccr
);
139 * Issue a "HARD" reset in order for the RISC
140 * interrupt bit to be cleared. Schedule a big
141 * hammmer to get out of the RISC PAUSED state.
143 WRT_REG_WORD(®
->hccr
, HCCR_RESET_RISC
);
144 RD_REG_WORD(®
->hccr
);
146 ha
->isp_ops
->fw_dump(ha
, 1);
147 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
149 } else if ((stat
& HSR_RISC_INT
) == 0)
152 switch (stat
& 0xff) {
157 qla2x00_mbx_completion(ha
, MSW(stat
));
158 status
|= MBX_INTERRUPT
;
160 /* Release mailbox registers. */
161 WRT_REG_WORD(®
->semaphore
, 0);
165 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
166 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
167 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
168 qla2x00_async_event(ha
, mb
);
171 qla2x00_process_response_queue(ha
);
174 mb
[0] = MBA_CMPLT_1_16BIT
;
176 qla2x00_async_event(ha
, mb
);
179 mb
[0] = MBA_SCSI_COMPLETION
;
181 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
182 qla2x00_async_event(ha
, mb
);
185 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
187 ha
->host_no
, stat
& 0xff));
190 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
191 RD_REG_WORD_RELAXED(®
->hccr
);
193 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
195 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
196 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
197 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
198 up(&ha
->mbx_intr_sem
);
201 return (IRQ_HANDLED
);
205 * qla2x00_mbx_completion() - Process mailbox command completions.
206 * @ha: SCSI driver HA context
207 * @mb0: Mailbox0 register
210 qla2x00_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
213 uint16_t __iomem
*wptr
;
214 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
216 /* Load return mailbox registers. */
217 ha
->flags
.mbox_int
= 1;
218 ha
->mailbox_out
[0] = mb0
;
219 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 1);
221 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
222 if (IS_QLA2200(ha
) && cnt
== 8)
223 wptr
= (uint16_t __iomem
*)MAILBOX_REG(ha
, reg
, 8);
224 if (cnt
== 4 || cnt
== 5)
225 ha
->mailbox_out
[cnt
] = qla2x00_debounce_register(wptr
);
227 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
233 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
234 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
236 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
237 __func__
, ha
->host_no
));
242 * qla2x00_async_event() - Process aynchronous events.
243 * @ha: SCSI driver HA context
244 * @mb: Mailbox registers (0 - 3)
247 qla2x00_async_event(scsi_qla_host_t
*ha
, uint16_t *mb
)
250 static char *link_speeds
[5] = { "1", "2", "?", "4", "8" };
255 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
256 uint32_t rscn_entry
, host_pid
;
257 uint8_t rscn_queue_index
;
259 /* Setup to process RIO completion. */
262 case MBA_SCSI_COMPLETION
:
263 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
266 case MBA_CMPLT_1_16BIT
:
269 mb
[0] = MBA_SCSI_COMPLETION
;
271 case MBA_CMPLT_2_16BIT
:
275 mb
[0] = MBA_SCSI_COMPLETION
;
277 case MBA_CMPLT_3_16BIT
:
282 mb
[0] = MBA_SCSI_COMPLETION
;
284 case MBA_CMPLT_4_16BIT
:
288 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
290 mb
[0] = MBA_SCSI_COMPLETION
;
292 case MBA_CMPLT_5_16BIT
:
296 handles
[3] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 6);
297 handles
[4] = (uint32_t)RD_MAILBOX_REG(ha
, reg
, 7);
299 mb
[0] = MBA_SCSI_COMPLETION
;
301 case MBA_CMPLT_2_32BIT
:
302 handles
[0] = le32_to_cpu((uint32_t)((mb
[2] << 16) | mb
[1]));
303 handles
[1] = le32_to_cpu(
304 ((uint32_t)(RD_MAILBOX_REG(ha
, reg
, 7) << 16)) |
305 RD_MAILBOX_REG(ha
, reg
, 6));
307 mb
[0] = MBA_SCSI_COMPLETION
;
314 case MBA_SCSI_COMPLETION
: /* Fast Post */
315 if (!ha
->flags
.online
)
318 for (cnt
= 0; cnt
< handle_cnt
; cnt
++)
319 qla2x00_process_completed_request(ha
, handles
[cnt
]);
322 case MBA_RESET
: /* Reset */
323 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha
->host_no
));
325 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
328 case MBA_SYSTEM_ERR
: /* System Error */
329 mb
[1] = RD_MAILBOX_REG(ha
, reg
, 1);
330 mb
[2] = RD_MAILBOX_REG(ha
, reg
, 2);
331 mb
[3] = RD_MAILBOX_REG(ha
, reg
, 3);
333 qla_printk(KERN_INFO
, ha
,
334 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
335 mb
[1], mb
[2], mb
[3]);
337 ha
->isp_ops
->fw_dump(ha
, 1);
339 if (IS_FWI2_CAPABLE(ha
)) {
340 if (mb
[1] == 0 && mb
[2] == 0) {
341 qla_printk(KERN_ERR
, ha
,
342 "Unrecoverable Hardware Error: adapter "
343 "marked OFFLINE!\n");
344 ha
->flags
.online
= 0;
346 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
347 } else if (mb
[1] == 0) {
348 qla_printk(KERN_INFO
, ha
,
349 "Unrecoverable Hardware Error: adapter marked "
351 ha
->flags
.online
= 0;
353 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
356 case MBA_REQ_TRANSFER_ERR
: /* Request Transfer Error */
357 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
359 qla_printk(KERN_WARNING
, ha
, "ISP Request Transfer Error.\n");
361 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
364 case MBA_RSP_TRANSFER_ERR
: /* Response Transfer Error */
365 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
367 qla_printk(KERN_WARNING
, ha
, "ISP Response Transfer Error.\n");
369 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
372 case MBA_WAKEUP_THRES
: /* Request Queue Wake-up */
373 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
377 case MBA_LIP_OCCURRED
: /* Loop Initialization Procedure */
378 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha
->host_no
,
380 qla_printk(KERN_INFO
, ha
, "LIP occured (%x).\n", mb
[1]);
382 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
383 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
384 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
385 qla2x00_mark_all_devices_lost(ha
, 1);
389 atomic_set(&ha
->vp_state
, VP_FAILED
);
390 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
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);
430 atomic_set(&ha
->vp_state
, VP_FAILED
);
431 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
434 ha
->flags
.management_server_logged_in
= 0;
435 ha
->link_data_rate
= PORT_SPEED_UNKNOWN
;
437 set_bit(REGISTER_FDMI_NEEDED
, &ha
->dpc_flags
);
440 case MBA_LIP_RESET
: /* LIP reset occurred */
441 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
442 ha
->host_no
, mb
[1]));
443 qla_printk(KERN_INFO
, ha
,
444 "LIP reset occured (%x).\n", mb
[1]);
446 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
447 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
448 atomic_set(&ha
->loop_down_timer
, LOOP_DOWN_TIME
);
449 qla2x00_mark_all_devices_lost(ha
, 1);
453 atomic_set(&ha
->vp_state
, VP_FAILED
);
454 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
457 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
459 ha
->operating_mode
= LOOP
;
460 ha
->flags
.management_server_logged_in
= 0;
463 case MBA_POINT_TO_POINT
: /* Point-to-Point */
467 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
471 * Until there's a transition from loop down to loop up, treat
472 * this as loop down only.
474 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
475 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
476 if (!atomic_read(&ha
->loop_down_timer
))
477 atomic_set(&ha
->loop_down_timer
,
479 qla2x00_mark_all_devices_lost(ha
, 1);
483 atomic_set(&ha
->vp_state
, VP_FAILED
);
484 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
487 if (!(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
488 set_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
490 set_bit(REGISTER_FC4_NEEDED
, &ha
->dpc_flags
);
492 ha
->flags
.gpsc_supported
= 1;
493 ha
->flags
.management_server_logged_in
= 0;
496 case MBA_CHG_IN_CONNECTION
: /* Change in connection mode */
500 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
503 qla_printk(KERN_INFO
, ha
,
504 "Configuration change detected: value=%x.\n", mb
[1]);
506 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
507 atomic_set(&ha
->loop_state
, LOOP_DOWN
);
508 if (!atomic_read(&ha
->loop_down_timer
))
509 atomic_set(&ha
->loop_down_timer
,
511 qla2x00_mark_all_devices_lost(ha
, 1);
515 atomic_set(&ha
->vp_state
, VP_FAILED
);
516 fc_vport_set_state(ha
->fc_vport
, FC_VPORT_FAILED
);
519 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
520 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
523 case MBA_PORT_UPDATE
: /* Port database update */
525 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
526 * event etc. earlier indicating loop is down) then process
527 * it. Otherwise ignore it and Wait for RSCN to come in.
529 atomic_set(&ha
->loop_down_timer
, 0);
530 if (atomic_read(&ha
->loop_state
) != LOOP_DOWN
&&
531 atomic_read(&ha
->loop_state
) != LOOP_DEAD
) {
532 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
533 "ignored %04x/%04x/%04x.\n", ha
->host_no
, mb
[1],
538 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
540 DEBUG(printk(KERN_INFO
541 "scsi(%ld): Port database changed %04x %04x %04x.\n",
542 ha
->host_no
, mb
[1], mb
[2], mb
[3]));
545 * Mark all devices as missing so we will login again.
547 atomic_set(&ha
->loop_state
, LOOP_UP
);
549 qla2x00_mark_all_devices_lost(ha
, 1);
551 ha
->flags
.rscn_queue_overflow
= 1;
553 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
554 set_bit(LOCAL_LOOP_UPDATE
, &ha
->dpc_flags
);
557 case MBA_RSCN_UPDATE
: /* State Change Registration */
558 /* Check if the Vport has issued a SCR */
559 if (ha
->parent
&& test_bit(VP_SCR_NEEDED
, &ha
->vp_flags
))
562 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
564 DEBUG(printk(KERN_INFO
565 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
566 ha
->host_no
, mb
[1], mb
[2]));
568 rscn_entry
= (mb
[1] << 16) | mb
[2];
569 host_pid
= (ha
->d_id
.b
.domain
<< 16) | (ha
->d_id
.b
.area
<< 8) |
571 if (rscn_entry
== host_pid
) {
572 DEBUG(printk(KERN_INFO
573 "scsi(%ld): Ignoring RSCN update to local host "
575 ha
->host_no
, host_pid
));
579 rscn_queue_index
= ha
->rscn_in_ptr
+ 1;
580 if (rscn_queue_index
== MAX_RSCN_COUNT
)
581 rscn_queue_index
= 0;
582 if (rscn_queue_index
!= ha
->rscn_out_ptr
) {
583 ha
->rscn_queue
[ha
->rscn_in_ptr
] = rscn_entry
;
584 ha
->rscn_in_ptr
= rscn_queue_index
;
586 ha
->flags
.rscn_queue_overflow
= 1;
589 atomic_set(&ha
->loop_state
, LOOP_UPDATE
);
590 atomic_set(&ha
->loop_down_timer
, 0);
591 ha
->flags
.management_server_logged_in
= 0;
593 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
594 set_bit(RSCN_UPDATE
, &ha
->dpc_flags
);
597 /* case MBA_RIO_RESPONSE: */
598 case MBA_ZIO_RESPONSE
:
599 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
601 DEBUG(printk(KERN_INFO
602 "scsi(%ld): [R|Z]IO update completion.\n",
605 if (IS_FWI2_CAPABLE(ha
))
606 qla24xx_process_response_queue(ha
);
608 qla2x00_process_response_queue(ha
);
611 case MBA_DISCARD_RND_FRAME
:
612 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
613 "%04x.\n", ha
->host_no
, mb
[1], mb
[2], mb
[3]));
616 case MBA_TRACE_NOTIFICATION
:
617 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
618 ha
->host_no
, mb
[1], mb
[2]));
622 if (!ha
->parent
&& ha
->num_vhosts
)
623 qla2x00_alert_all_vps(ha
, mb
);
627 qla2x00_adjust_sdev_qdepth_up(struct scsi_device
*sdev
, void *data
)
629 fc_port_t
*fcport
= data
;
631 if (fcport
->ha
->max_q_depth
<= sdev
->queue_depth
)
634 if (sdev
->ordered_tags
)
635 scsi_adjust_queue_depth(sdev
, MSG_ORDERED_TAG
,
636 sdev
->queue_depth
+ 1);
638 scsi_adjust_queue_depth(sdev
, MSG_SIMPLE_TAG
,
639 sdev
->queue_depth
+ 1);
641 fcport
->last_ramp_up
= jiffies
;
643 DEBUG2(qla_printk(KERN_INFO
, fcport
->ha
,
644 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
645 fcport
->ha
->host_no
, sdev
->channel
, sdev
->id
, sdev
->lun
,
650 qla2x00_adjust_sdev_qdepth_down(struct scsi_device
*sdev
, void *data
)
652 fc_port_t
*fcport
= data
;
654 if (!scsi_track_queue_full(sdev
, sdev
->queue_depth
- 1))
657 DEBUG2(qla_printk(KERN_INFO
, fcport
->ha
,
658 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
659 fcport
->ha
->host_no
, sdev
->channel
, sdev
->id
, sdev
->lun
,
664 qla2x00_ramp_up_queue_depth(scsi_qla_host_t
*ha
, srb_t
*sp
)
667 struct scsi_device
*sdev
;
669 sdev
= sp
->cmd
->device
;
670 if (sdev
->queue_depth
>= ha
->max_q_depth
)
674 if (time_before(jiffies
,
675 fcport
->last_ramp_up
+ ql2xqfullrampup
* HZ
))
677 if (time_before(jiffies
,
678 fcport
->last_queue_full
+ ql2xqfullrampup
* HZ
))
681 starget_for_each_device(sdev
->sdev_target
, fcport
,
682 qla2x00_adjust_sdev_qdepth_up
);
686 * qla2x00_process_completed_request() - Process a Fast Post response.
687 * @ha: SCSI driver HA context
691 qla2x00_process_completed_request(struct scsi_qla_host
*ha
, uint32_t index
)
695 /* Validate handle. */
696 if (index
>= MAX_OUTSTANDING_COMMANDS
) {
697 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
698 ha
->host_no
, index
));
699 qla_printk(KERN_WARNING
, ha
,
700 "Invalid SCSI completion handle %d.\n", index
);
702 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
706 sp
= ha
->outstanding_cmds
[index
];
708 /* Free outstanding command slot. */
709 ha
->outstanding_cmds
[index
] = NULL
;
711 CMD_COMPL_STATUS(sp
->cmd
) = 0L;
712 CMD_SCSI_STATUS(sp
->cmd
) = 0L;
714 /* Save ISP completion status */
715 sp
->cmd
->result
= DID_OK
<< 16;
717 qla2x00_ramp_up_queue_depth(ha
, sp
);
718 qla2x00_sp_compl(ha
, sp
);
720 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
722 qla_printk(KERN_WARNING
, ha
,
723 "Invalid ISP SCSI completion handle\n");
725 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
730 * qla2x00_process_response_queue() - Process response queue entries.
731 * @ha: SCSI driver HA context
734 qla2x00_process_response_queue(struct scsi_qla_host
*ha
)
736 struct device_reg_2xxx __iomem
*reg
= &ha
->iobase
->isp
;
741 if (!ha
->flags
.online
)
744 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
745 pkt
= (sts_entry_t
*)ha
->response_ring_ptr
;
747 ha
->rsp_ring_index
++;
748 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
749 ha
->rsp_ring_index
= 0;
750 ha
->response_ring_ptr
= ha
->response_ring
;
752 ha
->response_ring_ptr
++;
755 if (pkt
->entry_status
!= 0) {
756 DEBUG3(printk(KERN_INFO
757 "scsi(%ld): Process error entry.\n", ha
->host_no
));
759 qla2x00_error_entry(ha
, pkt
);
760 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
765 switch (pkt
->entry_type
) {
767 qla2x00_status_entry(ha
, pkt
);
770 handle_cnt
= ((sts21_entry_t
*)pkt
)->handle_count
;
771 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
772 qla2x00_process_completed_request(ha
,
773 ((sts21_entry_t
*)pkt
)->handle
[cnt
]);
777 handle_cnt
= ((sts22_entry_t
*)pkt
)->handle_count
;
778 for (cnt
= 0; cnt
< handle_cnt
; cnt
++) {
779 qla2x00_process_completed_request(ha
,
780 ((sts22_entry_t
*)pkt
)->handle
[cnt
]);
783 case STATUS_CONT_TYPE
:
784 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
787 qla2x00_ms_entry(ha
, (ms_iocb_entry_t
*)pkt
);
790 /* Type Not Supported. */
791 DEBUG4(printk(KERN_WARNING
792 "scsi(%ld): Received unknown response pkt type %x "
793 "entry status=%x.\n",
794 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
797 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
801 /* Adjust ring index */
802 WRT_REG_WORD(ISP_RSP_Q_OUT(ha
, reg
), ha
->rsp_ring_index
);
806 * qla2x00_status_entry() - Process a Status IOCB entry.
807 * @ha: SCSI driver HA context
808 * @pkt: Entry pointer
811 qla2x00_status_entry(scsi_qla_host_t
*ha
, void *pkt
)
815 struct scsi_cmnd
*cp
;
817 struct sts_entry_24xx
*sts24
;
818 uint16_t comp_status
;
819 uint16_t scsi_status
;
820 uint8_t lscsi_status
;
822 uint32_t sense_len
, rsp_info_len
, resid_len
, fw_resid_len
;
823 uint8_t *rsp_info
, *sense_data
;
825 sts
= (sts_entry_t
*) pkt
;
826 sts24
= (struct sts_entry_24xx
*) pkt
;
827 if (IS_FWI2_CAPABLE(ha
)) {
828 comp_status
= le16_to_cpu(sts24
->comp_status
);
829 scsi_status
= le16_to_cpu(sts24
->scsi_status
) & SS_MASK
;
831 comp_status
= le16_to_cpu(sts
->comp_status
);
832 scsi_status
= le16_to_cpu(sts
->scsi_status
) & SS_MASK
;
835 /* Fast path completion. */
836 if (comp_status
== CS_COMPLETE
&& scsi_status
== 0) {
837 qla2x00_process_completed_request(ha
, sts
->handle
);
842 /* Validate handle. */
843 if (sts
->handle
< MAX_OUTSTANDING_COMMANDS
) {
844 sp
= ha
->outstanding_cmds
[sts
->handle
];
845 ha
->outstanding_cmds
[sts
->handle
] = NULL
;
850 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
852 qla_printk(KERN_WARNING
, ha
, "Status Entry invalid handle.\n");
854 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
855 qla2xxx_wake_dpc(ha
);
860 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
861 "pkt->handle=%d sp=%p.\n", ha
->host_no
, sts
->handle
, sp
));
862 qla_printk(KERN_WARNING
, ha
,
863 "Command is NULL: already returned to OS (sp=%p)\n", sp
);
868 lscsi_status
= scsi_status
& STATUS_MASK
;
869 CMD_ENTRY_STATUS(cp
) = sts
->entry_status
;
870 CMD_COMPL_STATUS(cp
) = comp_status
;
871 CMD_SCSI_STATUS(cp
) = scsi_status
;
875 sense_len
= rsp_info_len
= resid_len
= fw_resid_len
= 0;
876 if (IS_FWI2_CAPABLE(ha
)) {
877 sense_len
= le32_to_cpu(sts24
->sense_len
);
878 rsp_info_len
= le32_to_cpu(sts24
->rsp_data_len
);
879 resid_len
= le32_to_cpu(sts24
->rsp_residual_count
);
880 fw_resid_len
= le32_to_cpu(sts24
->residual_len
);
881 rsp_info
= sts24
->data
;
882 sense_data
= sts24
->data
;
883 host_to_fcp_swap(sts24
->data
, sizeof(sts24
->data
));
885 sense_len
= le16_to_cpu(sts
->req_sense_length
);
886 rsp_info_len
= le16_to_cpu(sts
->rsp_info_len
);
887 resid_len
= le32_to_cpu(sts
->residual_length
);
888 rsp_info
= sts
->rsp_info
;
889 sense_data
= sts
->req_sense_data
;
892 /* Check for any FCP transport errors. */
893 if (scsi_status
& SS_RESPONSE_INFO_LEN_VALID
) {
894 /* Sense data lies beyond any FCP RESPONSE data. */
895 if (IS_FWI2_CAPABLE(ha
))
896 sense_data
+= rsp_info_len
;
897 if (rsp_info_len
> 3 && rsp_info
[3]) {
898 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
899 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
900 "retrying command\n", ha
->host_no
,
901 cp
->device
->channel
, cp
->device
->id
,
902 cp
->device
->lun
, rsp_info_len
, rsp_info
[0],
903 rsp_info
[1], rsp_info
[2], rsp_info
[3], rsp_info
[4],
904 rsp_info
[5], rsp_info
[6], rsp_info
[7]));
906 cp
->result
= DID_BUS_BUSY
<< 16;
907 qla2x00_sp_compl(ha
, sp
);
913 * Based on Host and scsi status generate status code for Linux
915 switch (comp_status
) {
918 if (scsi_status
== 0) {
919 cp
->result
= DID_OK
<< 16;
922 if (scsi_status
& (SS_RESIDUAL_UNDER
| SS_RESIDUAL_OVER
)) {
924 scsi_set_resid(cp
, resid
);
925 CMD_RESID_LEN(cp
) = resid
;
928 ((unsigned)(scsi_bufflen(cp
) - resid
) <
930 qla_printk(KERN_INFO
, ha
,
931 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
932 "detected (%x of %x bytes)...returning "
933 "error status.\n", ha
->host_no
,
934 cp
->device
->channel
, cp
->device
->id
,
935 cp
->device
->lun
, resid
,
938 cp
->result
= DID_ERROR
<< 16;
942 cp
->result
= DID_OK
<< 16 | lscsi_status
;
944 if (lscsi_status
== SAM_STAT_TASK_SET_FULL
) {
945 DEBUG2(printk(KERN_INFO
946 "scsi(%ld): QUEUE FULL status detected "
947 "0x%x-0x%x.\n", ha
->host_no
, comp_status
,
950 /* Adjust queue depth for all luns on the port. */
951 fcport
->last_queue_full
= jiffies
;
952 starget_for_each_device(cp
->device
->sdev_target
,
953 fcport
, qla2x00_adjust_sdev_qdepth_down
);
956 if (lscsi_status
!= SS_CHECK_CONDITION
)
959 /* Copy Sense Data into sense buffer. */
960 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
962 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
965 if (sense_len
>= sizeof(cp
->sense_buffer
))
966 sense_len
= sizeof(cp
->sense_buffer
);
968 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
969 sp
->request_sense_length
= sense_len
;
970 sp
->request_sense_ptr
= cp
->sense_buffer
;
972 if (sp
->request_sense_length
> 32)
975 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
977 sp
->request_sense_ptr
+= sense_len
;
978 sp
->request_sense_length
-= sense_len
;
979 if (sp
->request_sense_length
!= 0)
982 DEBUG5(printk("%s(): Check condition Sense data, "
983 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n", __func__
,
984 ha
->host_no
, cp
->device
->channel
, cp
->device
->id
,
985 cp
->device
->lun
, cp
, cp
->serial_number
));
987 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
988 CMD_ACTUAL_SNSLEN(cp
)));
991 case CS_DATA_UNDERRUN
:
993 /* Use F/W calculated residual length. */
994 if (IS_FWI2_CAPABLE(ha
))
995 resid
= fw_resid_len
;
997 if (scsi_status
& SS_RESIDUAL_UNDER
) {
998 scsi_set_resid(cp
, resid
);
999 CMD_RESID_LEN(cp
) = resid
;
1001 DEBUG2(printk(KERN_INFO
1002 "scsi(%ld:%d:%d) UNDERRUN status detected "
1003 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
1004 "os_underflow=0x%x\n", ha
->host_no
,
1005 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1006 scsi_status
, resid_len
, resid
, cp
->cmnd
[0],
1012 * Check to see if SCSI Status is non zero. If so report SCSI
1015 if (lscsi_status
!= 0) {
1016 cp
->result
= DID_OK
<< 16 | lscsi_status
;
1018 if (lscsi_status
== SAM_STAT_TASK_SET_FULL
) {
1019 DEBUG2(printk(KERN_INFO
1020 "scsi(%ld): QUEUE FULL status detected "
1021 "0x%x-0x%x.\n", ha
->host_no
, comp_status
,
1025 * Adjust queue depth for all luns on the
1028 fcport
->last_queue_full
= jiffies
;
1029 starget_for_each_device(
1030 cp
->device
->sdev_target
, fcport
,
1031 qla2x00_adjust_sdev_qdepth_down
);
1034 if (lscsi_status
!= SS_CHECK_CONDITION
)
1037 /* Copy Sense Data into sense buffer */
1038 memset(cp
->sense_buffer
, 0, sizeof(cp
->sense_buffer
));
1040 if (!(scsi_status
& SS_SENSE_LEN_VALID
))
1043 if (sense_len
>= sizeof(cp
->sense_buffer
))
1044 sense_len
= sizeof(cp
->sense_buffer
);
1046 CMD_ACTUAL_SNSLEN(cp
) = sense_len
;
1047 sp
->request_sense_length
= sense_len
;
1048 sp
->request_sense_ptr
= cp
->sense_buffer
;
1050 if (sp
->request_sense_length
> 32)
1053 memcpy(cp
->sense_buffer
, sense_data
, sense_len
);
1055 sp
->request_sense_ptr
+= sense_len
;
1056 sp
->request_sense_length
-= sense_len
;
1057 if (sp
->request_sense_length
!= 0)
1058 ha
->status_srb
= sp
;
1060 DEBUG5(printk("%s(): Check condition Sense data, "
1061 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
1062 __func__
, ha
->host_no
, cp
->device
->channel
,
1063 cp
->device
->id
, cp
->device
->lun
, cp
,
1064 cp
->serial_number
));
1067 * In case of a Underrun condition, set both the lscsi
1068 * status and the completion status to appropriate
1072 ((unsigned)(scsi_bufflen(cp
) - resid
) <
1074 DEBUG2(qla_printk(KERN_INFO
, ha
,
1075 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1076 "detected (%x of %x bytes)...returning "
1077 "error status.\n", ha
->host_no
,
1078 cp
->device
->channel
, cp
->device
->id
,
1079 cp
->device
->lun
, resid
,
1082 cp
->result
= DID_ERROR
<< 16 | lscsi_status
;
1086 DEBUG5(qla2x00_dump_buffer(cp
->sense_buffer
,
1087 CMD_ACTUAL_SNSLEN(cp
)));
1090 * If RISC reports underrun and target does not report
1091 * it then we must have a lost frame, so tell upper
1092 * layer to retry it by reporting a bus busy.
1094 if (!(scsi_status
& SS_RESIDUAL_UNDER
)) {
1095 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1096 "frame(s) detected (%x of %x bytes)..."
1097 "retrying command.\n", ha
->host_no
,
1098 cp
->device
->channel
, cp
->device
->id
,
1099 cp
->device
->lun
, resid
,
1102 cp
->result
= DID_BUS_BUSY
<< 16;
1106 /* Handle mid-layer underflow */
1107 if ((unsigned)(scsi_bufflen(cp
) - resid
) <
1109 qla_printk(KERN_INFO
, ha
,
1110 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1111 "detected (%x of %x bytes)...returning "
1112 "error status.\n", ha
->host_no
,
1113 cp
->device
->channel
, cp
->device
->id
,
1114 cp
->device
->lun
, resid
,
1117 cp
->result
= DID_ERROR
<< 16;
1121 /* Everybody online, looking good... */
1122 cp
->result
= DID_OK
<< 16;
1126 case CS_DATA_OVERRUN
:
1127 DEBUG2(printk(KERN_INFO
1128 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1129 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
, comp_status
,
1131 DEBUG2(printk(KERN_INFO
1132 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1133 cp
->cmnd
[0], cp
->cmnd
[1], cp
->cmnd
[2], cp
->cmnd
[3],
1134 cp
->cmnd
[4], cp
->cmnd
[5]));
1135 DEBUG2(printk(KERN_INFO
1136 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1138 cp
->serial_number
, scsi_bufflen(cp
), resid_len
));
1140 cp
->result
= DID_ERROR
<< 16;
1143 case CS_PORT_LOGGED_OUT
:
1144 case CS_PORT_CONFIG_CHG
:
1147 case CS_PORT_UNAVAILABLE
:
1149 * If the port is in Target Down state, return all IOs for this
1150 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1153 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1154 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1155 ha
->host_no
, cp
->device
->id
, cp
->device
->lun
,
1156 cp
->serial_number
, comp_status
,
1157 atomic_read(&fcport
->state
)));
1159 cp
->result
= DID_BUS_BUSY
<< 16;
1160 if (atomic_read(&fcport
->state
) == FCS_ONLINE
) {
1161 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1166 DEBUG2(printk(KERN_INFO
1167 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1168 ha
->host_no
, comp_status
, scsi_status
));
1170 cp
->result
= DID_RESET
<< 16;
1175 * hv2.19.12 - DID_ABORT does not retry the request if we
1176 * aborted this request then abort otherwise it must be a
1179 DEBUG2(printk(KERN_INFO
1180 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1181 ha
->host_no
, comp_status
, scsi_status
));
1183 cp
->result
= DID_RESET
<< 16;
1187 cp
->result
= DID_BUS_BUSY
<< 16;
1189 if (IS_FWI2_CAPABLE(ha
)) {
1190 DEBUG2(printk(KERN_INFO
1191 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
1192 "0x%x-0x%x\n", ha
->host_no
, cp
->device
->channel
,
1193 cp
->device
->id
, cp
->device
->lun
, comp_status
,
1197 DEBUG2(printk(KERN_INFO
1198 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1199 "sflags=%x.\n", ha
->host_no
, cp
->device
->channel
,
1200 cp
->device
->id
, cp
->device
->lun
, comp_status
, scsi_status
,
1201 le16_to_cpu(sts
->status_flags
)));
1203 /* Check to see if logout occurred. */
1204 if ((le16_to_cpu(sts
->status_flags
) & SF_LOGOUT_SENT
))
1205 qla2x00_mark_device_lost(ha
, fcport
, 1, 1);
1209 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1210 "0x%x-0x%x.\n", ha
->host_no
, comp_status
, scsi_status
));
1211 qla_printk(KERN_INFO
, ha
,
1212 "Unknown status detected 0x%x-0x%x.\n",
1213 comp_status
, scsi_status
);
1215 cp
->result
= DID_ERROR
<< 16;
1219 /* Place command on done queue. */
1220 if (ha
->status_srb
== NULL
)
1221 qla2x00_sp_compl(ha
, sp
);
1225 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1226 * @ha: SCSI driver HA context
1227 * @pkt: Entry pointer
1229 * Extended sense data.
1232 qla2x00_status_cont_entry(scsi_qla_host_t
*ha
, sts_cont_entry_t
*pkt
)
1234 uint8_t sense_sz
= 0;
1235 srb_t
*sp
= ha
->status_srb
;
1236 struct scsi_cmnd
*cp
;
1238 if (sp
!= NULL
&& sp
->request_sense_length
!= 0) {
1241 DEBUG2(printk("%s(): Cmd already returned back to OS "
1242 "sp=%p.\n", __func__
, sp
));
1243 qla_printk(KERN_INFO
, ha
,
1244 "cmd is NULL: already returned to OS (sp=%p)\n",
1247 ha
->status_srb
= NULL
;
1251 if (sp
->request_sense_length
> sizeof(pkt
->data
)) {
1252 sense_sz
= sizeof(pkt
->data
);
1254 sense_sz
= sp
->request_sense_length
;
1257 /* Move sense data. */
1258 if (IS_FWI2_CAPABLE(ha
))
1259 host_to_fcp_swap(pkt
->data
, sizeof(pkt
->data
));
1260 memcpy(sp
->request_sense_ptr
, pkt
->data
, sense_sz
);
1261 DEBUG5(qla2x00_dump_buffer(sp
->request_sense_ptr
, sense_sz
));
1263 sp
->request_sense_ptr
+= sense_sz
;
1264 sp
->request_sense_length
-= sense_sz
;
1266 /* Place command on done queue. */
1267 if (sp
->request_sense_length
== 0) {
1268 ha
->status_srb
= NULL
;
1269 qla2x00_sp_compl(ha
, sp
);
1275 * qla2x00_error_entry() - Process an error entry.
1276 * @ha: SCSI driver HA context
1277 * @pkt: Entry pointer
1280 qla2x00_error_entry(scsi_qla_host_t
*ha
, sts_entry_t
*pkt
)
1284 #if defined(QL_DEBUG_LEVEL_2)
1285 if (pkt
->entry_status
& RF_INV_E_ORDER
)
1286 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Order\n", __func__
);
1287 else if (pkt
->entry_status
& RF_INV_E_COUNT
)
1288 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Count\n", __func__
);
1289 else if (pkt
->entry_status
& RF_INV_E_PARAM
)
1290 qla_printk(KERN_ERR
, ha
,
1291 "%s: Invalid Entry Parameter\n", __func__
);
1292 else if (pkt
->entry_status
& RF_INV_E_TYPE
)
1293 qla_printk(KERN_ERR
, ha
, "%s: Invalid Entry Type\n", __func__
);
1294 else if (pkt
->entry_status
& RF_BUSY
)
1295 qla_printk(KERN_ERR
, ha
, "%s: Busy\n", __func__
);
1297 qla_printk(KERN_ERR
, ha
, "%s: UNKNOWN flag error\n", __func__
);
1300 /* Validate handle. */
1301 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1302 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1307 /* Free outstanding command slot. */
1308 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1310 /* Bad payload or header */
1311 if (pkt
->entry_status
&
1312 (RF_INV_E_ORDER
| RF_INV_E_COUNT
|
1313 RF_INV_E_PARAM
| RF_INV_E_TYPE
)) {
1314 sp
->cmd
->result
= DID_ERROR
<< 16;
1315 } else if (pkt
->entry_status
& RF_BUSY
) {
1316 sp
->cmd
->result
= DID_BUS_BUSY
<< 16;
1318 sp
->cmd
->result
= DID_ERROR
<< 16;
1320 qla2x00_sp_compl(ha
, sp
);
1322 } else if (pkt
->entry_type
== COMMAND_A64_TYPE
|| pkt
->entry_type
==
1323 COMMAND_TYPE
|| pkt
->entry_type
== COMMAND_TYPE_7
) {
1324 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1326 qla_printk(KERN_WARNING
, ha
,
1327 "Error entry - invalid handle\n");
1329 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1330 qla2xxx_wake_dpc(ha
);
1335 * qla2x00_ms_entry() - Process a Management Server entry.
1336 * @ha: SCSI driver HA context
1337 * @index: Response queue out pointer
1340 qla2x00_ms_entry(scsi_qla_host_t
*ha
, ms_iocb_entry_t
*pkt
)
1344 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1345 __func__
, ha
->host_no
, pkt
, pkt
->handle1
));
1347 /* Validate handle. */
1348 if (pkt
->handle1
< MAX_OUTSTANDING_COMMANDS
)
1349 sp
= ha
->outstanding_cmds
[pkt
->handle1
];
1354 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1356 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle\n");
1358 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1362 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->status
);
1363 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1365 /* Free outstanding command slot. */
1366 ha
->outstanding_cmds
[pkt
->handle1
] = NULL
;
1368 qla2x00_sp_compl(ha
, sp
);
1373 * qla24xx_mbx_completion() - Process mailbox command completions.
1374 * @ha: SCSI driver HA context
1375 * @mb0: Mailbox0 register
1378 qla24xx_mbx_completion(scsi_qla_host_t
*ha
, uint16_t mb0
)
1381 uint16_t __iomem
*wptr
;
1382 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1384 /* Load return mailbox registers. */
1385 ha
->flags
.mbox_int
= 1;
1386 ha
->mailbox_out
[0] = mb0
;
1387 wptr
= (uint16_t __iomem
*)®
->mailbox1
;
1389 for (cnt
= 1; cnt
< ha
->mbx_count
; cnt
++) {
1390 ha
->mailbox_out
[cnt
] = RD_REG_WORD(wptr
);
1395 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1396 __func__
, ha
->host_no
, ha
->mcp
->mb
[0]));
1398 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1399 __func__
, ha
->host_no
));
1404 * qla24xx_process_response_queue() - Process response queue entries.
1405 * @ha: SCSI driver HA context
1408 qla24xx_process_response_queue(struct scsi_qla_host
*ha
)
1410 struct device_reg_24xx __iomem
*reg
= &ha
->iobase
->isp24
;
1411 struct sts_entry_24xx
*pkt
;
1413 if (!ha
->flags
.online
)
1416 while (ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
1417 pkt
= (struct sts_entry_24xx
*)ha
->response_ring_ptr
;
1419 ha
->rsp_ring_index
++;
1420 if (ha
->rsp_ring_index
== ha
->response_q_length
) {
1421 ha
->rsp_ring_index
= 0;
1422 ha
->response_ring_ptr
= ha
->response_ring
;
1424 ha
->response_ring_ptr
++;
1427 if (pkt
->entry_status
!= 0) {
1428 DEBUG3(printk(KERN_INFO
1429 "scsi(%ld): Process error entry.\n", ha
->host_no
));
1431 qla2x00_error_entry(ha
, (sts_entry_t
*) pkt
);
1432 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1437 switch (pkt
->entry_type
) {
1439 qla2x00_status_entry(ha
, pkt
);
1441 case STATUS_CONT_TYPE
:
1442 qla2x00_status_cont_entry(ha
, (sts_cont_entry_t
*)pkt
);
1445 qla24xx_ms_entry(ha
, (struct ct_entry_24xx
*)pkt
);
1447 case VP_RPT_ID_IOCB_TYPE
:
1448 qla24xx_report_id_acquisition(ha
,
1449 (struct vp_rpt_id_entry_24xx
*)pkt
);
1452 /* Type Not Supported. */
1453 DEBUG4(printk(KERN_WARNING
1454 "scsi(%ld): Received unknown response pkt type %x "
1455 "entry status=%x.\n",
1456 ha
->host_no
, pkt
->entry_type
, pkt
->entry_status
));
1459 ((response_t
*)pkt
)->signature
= RESPONSE_PROCESSED
;
1463 /* Adjust ring index */
1464 WRT_REG_DWORD(®
->rsp_q_out
, ha
->rsp_ring_index
);
1468 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1470 * @dev_id: SCSI driver HA context
1472 * Called by system whenever the host adapter generates an interrupt.
1474 * Returns handled flag.
1477 qla24xx_intr_handler(int irq
, void *dev_id
)
1479 scsi_qla_host_t
*ha
;
1480 struct device_reg_24xx __iomem
*reg
;
1482 unsigned long flags
;
1488 ha
= (scsi_qla_host_t
*) dev_id
;
1491 "%s(): NULL host pointer\n", __func__
);
1495 reg
= &ha
->iobase
->isp24
;
1498 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1499 for (iter
= 50; iter
--; ) {
1500 stat
= RD_REG_DWORD(®
->host_status
);
1501 if (stat
& HSRX_RISC_PAUSED
) {
1502 hccr
= RD_REG_DWORD(®
->hccr
);
1504 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1505 "Dumping firmware!\n", hccr
);
1506 ha
->isp_ops
->fw_dump(ha
, 1);
1507 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1509 } else if ((stat
& HSRX_RISC_INT
) == 0)
1512 switch (stat
& 0xff) {
1517 qla24xx_mbx_completion(ha
, MSW(stat
));
1518 status
|= MBX_INTERRUPT
;
1523 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1524 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1525 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1526 qla2x00_async_event(ha
, mb
);
1529 qla24xx_process_response_queue(ha
);
1532 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1534 ha
->host_no
, stat
& 0xff));
1537 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1538 RD_REG_DWORD_RELAXED(®
->hccr
);
1540 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1542 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1543 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1544 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1545 up(&ha
->mbx_intr_sem
);
1552 * qla24xx_ms_entry() - Process a Management Server entry.
1553 * @ha: SCSI driver HA context
1554 * @index: Response queue out pointer
1557 qla24xx_ms_entry(scsi_qla_host_t
*ha
, struct ct_entry_24xx
*pkt
)
1561 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1562 __func__
, ha
->host_no
, pkt
, pkt
->handle
));
1564 DEBUG9(printk("%s: ct pkt dump:\n", __func__
));
1565 DEBUG9(qla2x00_dump_buffer((void *)pkt
, sizeof(struct ct_entry_24xx
)));
1567 /* Validate handle. */
1568 if (pkt
->handle
< MAX_OUTSTANDING_COMMANDS
)
1569 sp
= ha
->outstanding_cmds
[pkt
->handle
];
1574 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1576 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n",
1578 qla_printk(KERN_WARNING
, ha
, "MS entry - invalid handle %d\n",
1581 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1585 CMD_COMPL_STATUS(sp
->cmd
) = le16_to_cpu(pkt
->comp_status
);
1586 CMD_ENTRY_STATUS(sp
->cmd
) = pkt
->entry_status
;
1588 /* Free outstanding command slot. */
1589 ha
->outstanding_cmds
[pkt
->handle
] = NULL
;
1591 qla2x00_sp_compl(ha
, sp
);
1595 qla24xx_msix_rsp_q(int irq
, void *dev_id
)
1597 scsi_qla_host_t
*ha
;
1598 struct device_reg_24xx __iomem
*reg
;
1599 unsigned long flags
;
1602 reg
= &ha
->iobase
->isp24
;
1604 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1606 qla24xx_process_response_queue(ha
);
1608 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1609 RD_REG_DWORD_RELAXED(®
->hccr
);
1611 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1617 qla24xx_msix_default(int irq
, void *dev_id
)
1619 scsi_qla_host_t
*ha
;
1620 struct device_reg_24xx __iomem
*reg
;
1622 unsigned long flags
;
1629 reg
= &ha
->iobase
->isp24
;
1632 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1633 for (iter
= 50; iter
--; ) {
1634 stat
= RD_REG_DWORD(®
->host_status
);
1635 if (stat
& HSRX_RISC_PAUSED
) {
1636 hccr
= RD_REG_DWORD(®
->hccr
);
1638 qla_printk(KERN_INFO
, ha
, "RISC paused -- HCCR=%x, "
1639 "Dumping firmware!\n", hccr
);
1640 ha
->isp_ops
->fw_dump(ha
, 1);
1641 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
1643 } else if ((stat
& HSRX_RISC_INT
) == 0)
1646 switch (stat
& 0xff) {
1651 qla24xx_mbx_completion(ha
, MSW(stat
));
1652 status
|= MBX_INTERRUPT
;
1657 mb
[1] = RD_REG_WORD(®
->mailbox1
);
1658 mb
[2] = RD_REG_WORD(®
->mailbox2
);
1659 mb
[3] = RD_REG_WORD(®
->mailbox3
);
1660 qla2x00_async_event(ha
, mb
);
1663 qla24xx_process_response_queue(ha
);
1666 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1668 ha
->host_no
, stat
& 0xff));
1671 WRT_REG_DWORD(®
->hccr
, HCCRX_CLR_RISC_INT
);
1672 RD_REG_DWORD_RELAXED(®
->hccr
);
1674 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1676 if (test_bit(MBX_INTR_WAIT
, &ha
->mbx_cmd_flags
) &&
1677 (status
& MBX_INTERRUPT
) && ha
->flags
.mbox_int
) {
1678 set_bit(MBX_INTERRUPT
, &ha
->mbx_cmd_flags
);
1679 up(&ha
->mbx_intr_sem
);
1685 /* Interrupt handling helpers. */
1687 struct qla_init_msix_entry
{
1691 irq_handler_t handler
;
1694 static struct qla_init_msix_entry imsix_entries
[QLA_MSIX_ENTRIES
] = {
1695 { QLA_MSIX_DEFAULT
, QLA_MIDX_DEFAULT
,
1696 "qla2xxx (default)", qla24xx_msix_default
},
1698 { QLA_MSIX_RSP_Q
, QLA_MIDX_RSP_Q
,
1699 "qla2xxx (rsp_q)", qla24xx_msix_rsp_q
},
1703 qla24xx_disable_msix(scsi_qla_host_t
*ha
)
1706 struct qla_msix_entry
*qentry
;
1708 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++) {
1709 qentry
= &ha
->msix_entries
[imsix_entries
[i
].index
];
1710 if (qentry
->have_irq
)
1711 free_irq(qentry
->msix_vector
, ha
);
1713 pci_disable_msix(ha
->pdev
);
1717 qla24xx_enable_msix(scsi_qla_host_t
*ha
)
1720 struct msix_entry entries
[QLA_MSIX_ENTRIES
];
1721 struct qla_msix_entry
*qentry
;
1723 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++)
1724 entries
[i
].entry
= imsix_entries
[i
].entry
;
1726 ret
= pci_enable_msix(ha
->pdev
, entries
, ARRAY_SIZE(entries
));
1728 qla_printk(KERN_WARNING
, ha
,
1729 "MSI-X: Failed to enable support -- %d/%d\n",
1730 QLA_MSIX_ENTRIES
, ret
);
1733 ha
->flags
.msix_enabled
= 1;
1735 for (i
= 0; i
< QLA_MSIX_ENTRIES
; i
++) {
1736 qentry
= &ha
->msix_entries
[imsix_entries
[i
].index
];
1737 qentry
->msix_vector
= entries
[i
].vector
;
1738 qentry
->msix_entry
= entries
[i
].entry
;
1739 qentry
->have_irq
= 0;
1740 ret
= request_irq(qentry
->msix_vector
,
1741 imsix_entries
[i
].handler
, 0, imsix_entries
[i
].name
, ha
);
1743 qla_printk(KERN_WARNING
, ha
,
1744 "MSI-X: Unable to register handler -- %x/%d.\n",
1745 imsix_entries
[i
].index
, ret
);
1746 qla24xx_disable_msix(ha
);
1749 qentry
->have_irq
= 1;
1757 qla2x00_request_irqs(scsi_qla_host_t
*ha
)
1761 /* If possible, enable MSI-X. */
1762 if (!IS_QLA2432(ha
) && !IS_QLA2532(ha
))
1765 if (IS_QLA2432(ha
) && (ha
->chip_revision
< QLA_MSIX_CHIP_REV_24XX
||
1766 !QLA_MSIX_FW_MODE_1(ha
->fw_attributes
))) {
1767 DEBUG2(qla_printk(KERN_WARNING
, ha
,
1768 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
1769 ha
->chip_revision
, ha
->fw_attributes
));
1774 ret
= qla24xx_enable_msix(ha
);
1776 DEBUG2(qla_printk(KERN_INFO
, ha
,
1777 "MSI-X: Enabled (0x%X, 0x%X).\n", ha
->chip_revision
,
1778 ha
->fw_attributes
));
1781 qla_printk(KERN_WARNING
, ha
,
1782 "MSI-X: Falling back-to INTa mode -- %d.\n", ret
);
1785 if (!IS_QLA24XX(ha
) && !IS_QLA2532(ha
))
1788 ret
= pci_enable_msi(ha
->pdev
);
1790 DEBUG2(qla_printk(KERN_INFO
, ha
, "MSI: Enabled.\n"));
1791 ha
->flags
.msi_enabled
= 1;
1795 ret
= request_irq(ha
->pdev
->irq
, ha
->isp_ops
->intr_handler
,
1796 IRQF_DISABLED
|IRQF_SHARED
, QLA2XXX_DRIVER_NAME
, ha
);
1798 ha
->flags
.inta_enabled
= 1;
1799 ha
->host
->irq
= ha
->pdev
->irq
;
1801 qla_printk(KERN_WARNING
, ha
,
1802 "Failed to reserve interrupt %d already in use.\n",
1810 qla2x00_free_irqs(scsi_qla_host_t
*ha
)
1813 if (ha
->flags
.msix_enabled
)
1814 qla24xx_disable_msix(ha
);
1815 else if (ha
->flags
.inta_enabled
) {
1816 free_irq(ha
->host
->irq
, ha
);
1817 pci_disable_msi(ha
->pdev
);