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[SCSI] qla2xxx: Add ISP24xx IOCB manipulation routines.
[mirror_ubuntu-jammy-kernel.git] / drivers / scsi / qla2xxx / qla_isr.c
CommitLineData
1da177e4
LT		 1/*
2 * QLOGIC LINUX SOFTWARE
3 *
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2004 QLogic Corporation
6 * (www.qlogic.com)
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
11 * later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 */
19#include "qla_def.h"
20
21static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
22static void qla2x00_async_event(scsi_qla_host_t *, uint32_t);
23static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
24void qla2x00_process_response_queue(struct scsi_qla_host *);
25static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *);
26static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
27static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
28static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
29
1da177e4
LT		 30/**
31 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
32 * @irq:
33 * @dev_id: SCSI driver HA context
34 * @regs:
35 *
36 * Called by system whenever the host adapter generates an interrupt.
37 *
38 * Returns handled flag.
39 */
40irqreturn_t
41qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
42{
43 scsi_qla_host_t *ha;
3d71644c 44 struct device_reg_2xxx __iomem *reg;
1da177e4
LT		 45 int status;
46 unsigned long flags;
47 unsigned long iter;
48 uint32_t mbx;
49
50 ha = (scsi_qla_host_t *) dev_id;
51 if (!ha) {
52 printk(KERN_INFO
53 "%s(): NULL host pointer\n", __func__);
54 return (IRQ_NONE);
55 }
56
3d71644c 57 reg = &ha->iobase->isp;
1da177e4
LT		 58 status = 0;
59
60 spin_lock_irqsave(&ha->hardware_lock, flags);
61 for (iter = 50; iter--; ) {
62 if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
63 break;
64
65 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
66 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
67 RD_REG_WORD(&reg->hccr);
68
69 /* Get mailbox data. */
70 mbx = RD_MAILBOX_REG(ha, reg, 0);
71 if (mbx > 0x3fff && mbx < 0x8000) {
72 qla2x00_mbx_completion(ha, (uint16_t)mbx);
73 status |= MBX_INTERRUPT;
74 } else if (mbx > 0x7fff && mbx < 0xc000) {
75 qla2x00_async_event(ha, mbx);
76 } else {
77 /*EMPTY*/
78 DEBUG2(printk("scsi(%ld): Unrecognized "
79 "interrupt type (%d)\n",
80 ha->host_no, mbx));
81 }
82 /* Release mailbox registers. */
83 WRT_REG_WORD(&reg->semaphore, 0);
84 RD_REG_WORD(&reg->semaphore);
85 } else {
86 qla2x00_process_response_queue(ha);
87
88 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
89 RD_REG_WORD(&reg->hccr);
90 }
91 }
92 spin_unlock_irqrestore(&ha->hardware_lock, flags);
93
1da177e4
LT		 94 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
95 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
96 spin_lock_irqsave(&ha->mbx_reg_lock, flags);
97
98 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
99 up(&ha->mbx_intr_sem);
100
101 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
102 }
103
1da177e4
LT		 104 return (IRQ_HANDLED);
105}
106
107/**
108 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
109 * @irq:
110 * @dev_id: SCSI driver HA context
111 * @regs:
112 *
113 * Called by system whenever the host adapter generates an interrupt.
114 *
115 * Returns handled flag.
116 */
117irqreturn_t
118qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
119{
120 scsi_qla_host_t *ha;
3d71644c 121 struct device_reg_2xxx __iomem *reg;
1da177e4
LT		 122 int status;
123 unsigned long flags;
124 unsigned long iter;
125 uint32_t stat;
126 uint32_t mbx;
127 uint16_t hccr;
128
129 ha = (scsi_qla_host_t *) dev_id;
130 if (!ha) {
131 printk(KERN_INFO
132 "%s(): NULL host pointer\n", __func__);
133 return (IRQ_NONE);
134 }
135
3d71644c 136 reg = &ha->iobase->isp;
1da177e4
LT		 137 status = 0;
138
139 spin_lock_irqsave(&ha->hardware_lock, flags);
140 for (iter = 50; iter--; ) {
141 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
142 if (stat & HSR_RISC_PAUSED) {
143 hccr = RD_REG_WORD(&reg->hccr);
144 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
145 qla_printk(KERN_INFO, ha,
146 "Parity error -- HCCR=%x.\n", hccr);
147 else
148 qla_printk(KERN_INFO, ha,
149 "RISC paused -- HCCR=%x\n", hccr);
150
151 /*
152 * Issue a "HARD" reset in order for the RISC
153 * interrupt bit to be cleared. Schedule a big
154 * hammmer to get out of the RISC PAUSED state.
155 */
156 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
157 RD_REG_WORD(&reg->hccr);
158 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
159 break;
160 } else if ((stat & HSR_RISC_INT) == 0)
161 break;
162
163 mbx = MSW(stat);
164 switch (stat & 0xff) {
165 case 0x13:
166 qla2x00_process_response_queue(ha);
167 break;
168 case 0x1:
169 case 0x2:
170 case 0x10:
171 case 0x11:
172 qla2x00_mbx_completion(ha, (uint16_t)mbx);
173 status |= MBX_INTERRUPT;
174
175 /* Release mailbox registers. */
176 WRT_REG_WORD(&reg->semaphore, 0);
177 break;
178 case 0x12:
179 qla2x00_async_event(ha, mbx);
180 break;
181 case 0x15:
182 mbx = mbx << 16 | MBA_CMPLT_1_16BIT;
183 qla2x00_async_event(ha, mbx);
184 break;
185 case 0x16:
186 mbx = mbx << 16 | MBA_SCSI_COMPLETION;
187 qla2x00_async_event(ha, mbx);
188 break;
189 default:
190 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
191 "(%d)\n",
192 ha->host_no, stat & 0xff));
193 break;
194 }
195 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
196 RD_REG_WORD_RELAXED(&reg->hccr);
197 }
198 spin_unlock_irqrestore(&ha->hardware_lock, flags);
199
1da177e4
LT		 200 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
201 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
202 spin_lock_irqsave(&ha->mbx_reg_lock, flags);
203
204 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
205 up(&ha->mbx_intr_sem);
206
207 spin_unlock_irqrestore(&ha->mbx_reg_lock, flags);
208 }
209
1da177e4
LT		 210 return (IRQ_HANDLED);
211}
212
213/**
214 * qla2x00_mbx_completion() - Process mailbox command completions.
215 * @ha: SCSI driver HA context
216 * @mb0: Mailbox0 register
217 */
218static void
219qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
220{
221 uint16_t cnt;
222 uint16_t __iomem *wptr;
3d71644c 223 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 224
225 /* Load return mailbox registers. */
226 ha->flags.mbox_int = 1;
227 ha->mailbox_out[0] = mb0;
228 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
229
230 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
231 if (IS_QLA2200(ha) && cnt == 8)
232 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
233 if (cnt == 4 || cnt == 5)
234 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
235 else
236 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
237
238 wptr++;
239 }
240
241 if (ha->mcp) {
242 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
243 __func__, ha->host_no, ha->mcp->mb[0]));
244 } else {
245 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
246 __func__, ha->host_no));
247 }
248}
249
250/**
251 * qla2x00_async_event() - Process aynchronous events.
252 * @ha: SCSI driver HA context
253 * @mb0: Mailbox0 register
254 */
255static void
256qla2x00_async_event(scsi_qla_host_t *ha, uint32_t mbx)
257{
258 static char *link_speeds[5] = { "1", "2", "4", "?", "10" };
259 char *link_speed;
260 uint16_t mb[4];
261 uint16_t handle_cnt;
262 uint16_t cnt;
263 uint32_t handles[5];
3d71644c 264 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 265 uint32_t rscn_entry, host_pid;
266 uint8_t rscn_queue_index;
267
268 /* Setup to process RIO completion. */
269 handle_cnt = 0;
270 mb[0] = LSW(mbx);
271 switch (mb[0]) {
272 case MBA_SCSI_COMPLETION:
273 if (IS_QLA2100(ha) || IS_QLA2200(ha))
274 handles[0] = le32_to_cpu(
275 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
276 RD_MAILBOX_REG(ha, reg, 1));
277 else
278 handles[0] = le32_to_cpu(
279 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
280 MSW(mbx));
281 handle_cnt = 1;
282 break;
283 case MBA_CMPLT_1_16BIT:
284 if (IS_QLA2100(ha) || IS_QLA2200(ha))
285 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
286 else
287 handles[0] = MSW(mbx);
288 handle_cnt = 1;
289 mb[0] = MBA_SCSI_COMPLETION;
290 break;
291 case MBA_CMPLT_2_16BIT:
292 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
293 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
294 handle_cnt = 2;
295 mb[0] = MBA_SCSI_COMPLETION;
296 break;
297 case MBA_CMPLT_3_16BIT:
298 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
299 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
300 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
301 handle_cnt = 3;
302 mb[0] = MBA_SCSI_COMPLETION;
303 break;
304 case MBA_CMPLT_4_16BIT:
305 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
306 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
307 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
308 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
309 handle_cnt = 4;
310 mb[0] = MBA_SCSI_COMPLETION;
311 break;
312 case MBA_CMPLT_5_16BIT:
313 handles[0] = (uint32_t)RD_MAILBOX_REG(ha, reg, 1);
314 handles[1] = (uint32_t)RD_MAILBOX_REG(ha, reg, 2);
315 handles[2] = (uint32_t)RD_MAILBOX_REG(ha, reg, 3);
316 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
317 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
318 handle_cnt = 5;
319 mb[0] = MBA_SCSI_COMPLETION;
320 break;
321 case MBA_CMPLT_2_32BIT:
322 handles[0] = le32_to_cpu(
323 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 2) << 16)) |
324 RD_MAILBOX_REG(ha, reg, 1));
325 handles[1] = le32_to_cpu(
326 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
327 RD_MAILBOX_REG(ha, reg, 6));
328 handle_cnt = 2;
329 mb[0] = MBA_SCSI_COMPLETION;
330 break;
331 default:
332 break;
333 }
334
335 switch (mb[0]) {
336 case MBA_SCSI_COMPLETION: /* Fast Post */
337 if (!ha->flags.online)
338 break;
339
340 for (cnt = 0; cnt < handle_cnt; cnt++)
341 qla2x00_process_completed_request(ha, handles[cnt]);
342 break;
343
344 case MBA_RESET: /* Reset */
345 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no));
346
347 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
348 break;
349
350 case MBA_SYSTEM_ERR: /* System Error */
351 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
352 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
353 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
354
355 qla_printk(KERN_INFO, ha,
356 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
357 mb[1], mb[2], mb[3]);
358
abbd8870 359 ha->isp_ops.fw_dump(ha, 1);
1da177e4
LT		 360
361 if (mb[1] == 0) {
362 qla_printk(KERN_INFO, ha,
363 "Unrecoverable Hardware Error: adapter marked "
364 "OFFLINE!\n");
365 ha->flags.online = 0;
366 } else
367 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
368 break;
369
370 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
371 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
372 ha->host_no));
373 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
374
375 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
376 break;
377
378 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
379 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
380 ha->host_no));
381 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
382
383 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
384 break;
385
386 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
387 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
388 ha->host_no));
389 break;
390
391 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
392 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
393
394 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
395 mb[1]));
396 qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
397
398 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
399 atomic_set(&ha->loop_state, LOOP_DOWN);
400 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
401 qla2x00_mark_all_devices_lost(ha);
402 }
403
404 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
405
406 ha->flags.management_server_logged_in = 0;
407
408 /* Update AEN queue. */
409 qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
410
1da177e4
LT		 411 break;
412
413 case MBA_LOOP_UP: /* Loop Up Event */
414 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
415
416 ha->link_data_rate = 0;
417 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
418 link_speed = link_speeds[0];
419 } else {
420 link_speed = link_speeds[3];
421 if (mb[1] < 5)
422 link_speed = link_speeds[mb[1]];
423 ha->link_data_rate = mb[1];
424 }
425
426 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
427 ha->host_no, link_speed));
428 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
429 link_speed);
430
431 ha->flags.management_server_logged_in = 0;
432
433 /* Update AEN queue. */
434 qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
435 break;
436
437 case MBA_LOOP_DOWN: /* Loop Down Event */
438 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n",
439 ha->host_no));
440 qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n");
441
442 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
443 atomic_set(&ha->loop_state, LOOP_DOWN);
444 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
445 ha->device_flags |= DFLG_NO_CABLE;
446 qla2x00_mark_all_devices_lost(ha);
447 }
448
449 ha->flags.management_server_logged_in = 0;
450 ha->link_data_rate = 0;
451
452 /* Update AEN queue. */
453 qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
454 break;
455
456 case MBA_LIP_RESET: /* LIP reset occurred */
457 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
458
459 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
460 ha->host_no, mb[1]));
461 qla_printk(KERN_INFO, ha,
462 "LIP reset occured (%x).\n", mb[1]);
463
464 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
465 atomic_set(&ha->loop_state, LOOP_DOWN);
466 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
467 qla2x00_mark_all_devices_lost(ha);
468 }
469
470 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
471
472 ha->operating_mode = LOOP;
473 ha->flags.management_server_logged_in = 0;
474
475 /* Update AEN queue. */
476 qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
477
1da177e4
LT		 478 break;
479
480 case MBA_POINT_TO_POINT: /* Point-to-Point */
481 if (IS_QLA2100(ha))
482 break;
483
484 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
485 ha->host_no));
486
487 /*
488 * Until there's a transition from loop down to loop up, treat
489 * this as loop down only.
490 */
491 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
492 atomic_set(&ha->loop_state, LOOP_DOWN);
493 if (!atomic_read(&ha->loop_down_timer))
494 atomic_set(&ha->loop_down_timer,
495 LOOP_DOWN_TIME);
496 qla2x00_mark_all_devices_lost(ha);
497 }
498
499 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
500 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
501 }
502 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
503 break;
504
505 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
506 if (IS_QLA2100(ha))
507 break;
508
509 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
510
511 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
512 "received.\n",
513 ha->host_no));
514 qla_printk(KERN_INFO, ha,
515 "Configuration change detected: value=%x.\n", mb[1]);
516
517 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
518 atomic_set(&ha->loop_state, LOOP_DOWN);
519 if (!atomic_read(&ha->loop_down_timer))
520 atomic_set(&ha->loop_down_timer,
521 LOOP_DOWN_TIME);
522 qla2x00_mark_all_devices_lost(ha);
523 }
524
525 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
526 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
527 break;
528
529 case MBA_PORT_UPDATE: /* Port database update */
530 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
531 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
532
533 /*
534 * If a single remote port just logged into (or logged out of)
535 * us, create a new entry in our rscn fcports list and handle
536 * the event like an RSCN.
537 */
538 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
539 !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff &&
540 ((ha->operating_mode == P2P && mb[1] != 0) ||
541 (ha->operating_mode != P2P && mb[1] !=
542 SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
543 int rval;
544 fc_port_t *rscn_fcport;
545
546 /* Create new fcport for login. */
547 rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
548 if (rscn_fcport) {
549 DEBUG14(printk("scsi(%ld): Port Update -- "
550 "creating RSCN fcport %p for %x/%x.\n",
551 ha->host_no, rscn_fcport, mb[1], mb[2]));
552
553 rscn_fcport->loop_id = mb[1];
554 rscn_fcport->d_id.b24 = INVALID_PORT_ID;
555 atomic_set(&rscn_fcport->state,
556 FCS_DEVICE_LOST);
557 list_add_tail(&rscn_fcport->list,
558 &ha->rscn_fcports);
559
560 rval = qla2x00_handle_port_rscn(ha, 0,
561 rscn_fcport, 1);
562 if (rval == QLA_SUCCESS)
563 break;
564 } else {
565 DEBUG14(printk("scsi(%ld): Port Update -- "
566 "-- unable to allocate RSCN fcport "
567 "login.\n", ha->host_no));
568 }
569 }
570
571 /*
572 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
573 * event etc. earlier indicating loop is down) then process
574 * it. Otherwise ignore it and Wait for RSCN to come in.
575 */
576 atomic_set(&ha->loop_down_timer, 0);
577 if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
578 atomic_read(&ha->loop_state) != LOOP_DEAD) {
579 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
580 "ignored.\n", ha->host_no));
581 break;
582 }
583
584 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
585 ha->host_no));
586 DEBUG(printk(KERN_INFO
587 "scsi(%ld): Port database changed %04x %04x.\n",
588 ha->host_no, mb[1], mb[2]));
589
590 /*
591 * Mark all devices as missing so we will login again.
592 */
593 atomic_set(&ha->loop_state, LOOP_UP);
594
595 qla2x00_mark_all_devices_lost(ha);
596
597 ha->flags.rscn_queue_overflow = 1;
598
599 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
600 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
601
602 /* Update AEN queue. */
603 qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
604 break;
605
606 case MBA_RSCN_UPDATE: /* State Change Registration */
607 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
608 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
609
610 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
611 ha->host_no));
612 DEBUG(printk(KERN_INFO
613 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
614 ha->host_no, mb[1], mb[2]));
615
616 rscn_entry = (mb[1] << 16) | mb[2];
617 host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
618 ha->d_id.b.al_pa;
619 if (rscn_entry == host_pid) {
620 DEBUG(printk(KERN_INFO
621 "scsi(%ld): Ignoring RSCN update to local host "
622 "port ID (%06x)\n",
623 ha->host_no, host_pid));
624 break;
625 }
626
627 rscn_queue_index = ha->rscn_in_ptr + 1;
628 if (rscn_queue_index == MAX_RSCN_COUNT)
629 rscn_queue_index = 0;
630 if (rscn_queue_index != ha->rscn_out_ptr) {
631 ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
632 ha->rscn_in_ptr = rscn_queue_index;
633 } else {
634 ha->flags.rscn_queue_overflow = 1;
635 }
636
637 atomic_set(&ha->loop_state, LOOP_UPDATE);
638 atomic_set(&ha->loop_down_timer, 0);
639 ha->flags.management_server_logged_in = 0;
640
641 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
642 set_bit(RSCN_UPDATE, &ha->dpc_flags);
643
644 /* Update AEN queue. */
645 qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
646 break;
647
648 /* case MBA_RIO_RESPONSE: */
649 case MBA_ZIO_RESPONSE:
650 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
651 ha->host_no));
652 DEBUG(printk(KERN_INFO
653 "scsi(%ld): [R|Z]IO update completion.\n",
654 ha->host_no));
655
656 qla2x00_process_response_queue(ha);
657 break;
658 }
659}
660
661/**
662 * qla2x00_process_completed_request() - Process a Fast Post response.
663 * @ha: SCSI driver HA context
664 * @index: SRB index
665 */
666static void
667qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
668{
669 srb_t *sp;
670
671 /* Validate handle. */
672 if (index >= MAX_OUTSTANDING_COMMANDS) {
673 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
674 ha->host_no, index));
675 qla_printk(KERN_WARNING, ha,
676 "Invalid SCSI completion handle %d.\n", index);
677
678 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
679 return;
680 }
681
682 sp = ha->outstanding_cmds[index];
683 if (sp) {
684 /* Free outstanding command slot. */
685 ha->outstanding_cmds[index] = NULL;
686
1da177e4
LT		 687 CMD_COMPL_STATUS(sp->cmd) = 0L;
688 CMD_SCSI_STATUS(sp->cmd) = 0L;
689
690 /* Save ISP completion status */
691 sp->cmd->result = DID_OK << 16;
f4f051eb 692 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 693 } else {
694 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
695 ha->host_no));
696 qla_printk(KERN_WARNING, ha,
697 "Invalid ISP SCSI completion handle\n");
698
699 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
700 }
701}
702
703/**
704 * qla2x00_process_response_queue() - Process response queue entries.
705 * @ha: SCSI driver HA context
706 */
707void
708qla2x00_process_response_queue(struct scsi_qla_host *ha)
709{
3d71644c 710 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 711 sts_entry_t *pkt;
712 uint16_t handle_cnt;
713 uint16_t cnt;
714
715 if (!ha->flags.online)
716 return;
717
718 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
719 pkt = (sts_entry_t *)ha->response_ring_ptr;
720
721 ha->rsp_ring_index++;
722 if (ha->rsp_ring_index == ha->response_q_length) {
723 ha->rsp_ring_index = 0;
724 ha->response_ring_ptr = ha->response_ring;
725 } else {
726 ha->response_ring_ptr++;
727 }
728
729 if (pkt->entry_status != 0) {
730 DEBUG3(printk(KERN_INFO
731 "scsi(%ld): Process error entry.\n", ha->host_no));
732
733 qla2x00_error_entry(ha, pkt);
734 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
735 wmb();
736 continue;
737 }
738
739 switch (pkt->entry_type) {
740 case STATUS_TYPE:
741 qla2x00_status_entry(ha, pkt);
742 break;
743 case STATUS_TYPE_21:
744 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
745 for (cnt = 0; cnt < handle_cnt; cnt++) {
746 qla2x00_process_completed_request(ha,
747 ((sts21_entry_t *)pkt)->handle[cnt]);
748 }
749 break;
750 case STATUS_TYPE_22:
751 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
752 for (cnt = 0; cnt < handle_cnt; cnt++) {
753 qla2x00_process_completed_request(ha,
754 ((sts22_entry_t *)pkt)->handle[cnt]);
755 }
756 break;
757 case STATUS_CONT_TYPE:
758 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
759 break;
760 case MS_IOCB_TYPE:
761 qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
762 break;
763 case MBX_IOCB_TYPE:
764 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
765 !IS_QLA6312(ha) && !IS_QLA6322(ha)) {
766 if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
767 qla2x00_process_iodesc(ha,
768 (struct mbx_entry *)pkt);
769 } else {
770 /* MBX IOCB Type Not Supported. */
771 DEBUG4(printk(KERN_WARNING
772 "scsi(%ld): Received unknown MBX "
773 "IOCB response pkt type=%x "
774 "source=%x entry status=%x.\n",
775 ha->host_no, pkt->entry_type,
776 pkt->sys_define,
777 pkt->entry_status));
778 }
779 break;
780 }
781 /* Fallthrough. */
782 default:
783 /* Type Not Supported. */
784 DEBUG4(printk(KERN_WARNING
785 "scsi(%ld): Received unknown response pkt type %x "
786 "entry status=%x.\n",
787 ha->host_no, pkt->entry_type, pkt->entry_status));
788 break;
789 }
790 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
791 wmb();
792 }
793
794 /* Adjust ring index */
795 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
796}
797
798/**
799 * qla2x00_status_entry() - Process a Status IOCB entry.
800 * @ha: SCSI driver HA context
801 * @pkt: Entry pointer
802 */
803static void
804qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
805{
1da177e4
LT		 806 unsigned b, t, l;
807 srb_t *sp;
1da177e4
LT		 808 fc_port_t *fcport;
809 struct scsi_cmnd *cp;
810 uint16_t comp_status;
811 uint16_t scsi_status;
812 uint8_t lscsi_status;
813 int32_t resid;
814 uint8_t sense_sz = 0;
815 uint16_t rsp_info_len;
816
817 /* Fast path completion. */
818 if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE &&
819 (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) {
820 qla2x00_process_completed_request(ha, pkt->handle);
821
822 return;
823 }
824
825 /* Validate handle. */
826 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) {
827 sp = ha->outstanding_cmds[pkt->handle];
828 ha->outstanding_cmds[pkt->handle] = NULL;
829 } else
830 sp = NULL;
831
832 if (sp == NULL) {
833 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
834 ha->host_no));
835 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
836
837 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
838 if (ha->dpc_wait && !ha->dpc_active)
839 up(ha->dpc_wait);
840
841 return;
842 }
843 cp = sp->cmd;
844 if (cp == NULL) {
845 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
846 "pkt->handle=%d sp=%p sp->state:%d\n",
847 ha->host_no, pkt->handle, sp, sp->state));
848 qla_printk(KERN_WARNING, ha,
849 "Command is NULL: already returned to OS (sp=%p)\n", sp);
850
851 return;
852 }
853
1da177e4
LT		 854 comp_status = le16_to_cpu(pkt->comp_status);
855 /* Mask of reserved bits 12-15, before we examine the scsi status */
856 scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK;
857 lscsi_status = scsi_status & STATUS_MASK;
858
859 CMD_ENTRY_STATUS(cp) = pkt->entry_status;
860 CMD_COMPL_STATUS(cp) = comp_status;
861 CMD_SCSI_STATUS(cp) = scsi_status;
862
863 /* Generate LU queue on cntrl, target, LUN */
864 b = cp->device->channel;
865 t = cp->device->id;
866 l = cp->device->lun,
867
bdf79621 868 fcport = sp->fcport;
1da177e4 869
1da177e4
LT		 870 /* Check for any FCP transport errors. */
871 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
872 rsp_info_len = le16_to_cpu(pkt->rsp_info_len);
873 if (rsp_info_len > 3 && pkt->rsp_info[3]) {
874 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
875 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
876 "retrying command\n", ha->host_no, b, t, l,
877 rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1],
878 pkt->rsp_info[2], pkt->rsp_info[3],
879 pkt->rsp_info[4], pkt->rsp_info[5],
880 pkt->rsp_info[6], pkt->rsp_info[7]));
881
882 cp->result = DID_BUS_BUSY << 16;
f4f051eb 883 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 884 return;
885 }
886 }
887
888 /*
889 * Based on Host and scsi status generate status code for Linux
890 */
891 switch (comp_status) {
892 case CS_COMPLETE:
893 if (scsi_status == 0) {
894 cp->result = DID_OK << 16;
895 break;
896 }
897 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
898 resid = le32_to_cpu(pkt->residual_length);
899 cp->resid = resid;
900 CMD_RESID_LEN(cp) = resid;
901 }
1da177e4
LT		 902 cp->result = DID_OK << 16 | lscsi_status;
903
904 if (lscsi_status != SS_CHECK_CONDITION)
905 break;
906
907 /*
908 * Copy Sense Data into sense buffer
909 */
910 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
911
912 if (!(scsi_status & SS_SENSE_LEN_VALID))
913 break;
914
915 if (le16_to_cpu(pkt->req_sense_length) <
916 sizeof(cp->sense_buffer))
917 sense_sz = le16_to_cpu(pkt->req_sense_length);
918 else
919 sense_sz = sizeof(cp->sense_buffer);
920
921 CMD_ACTUAL_SNSLEN(cp) = sense_sz;
922 sp->request_sense_length = sense_sz;
923 sp->request_sense_ptr = cp->sense_buffer;
924
925 if (sp->request_sense_length > 32)
926 sense_sz = 32;
927
928 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
929
930 sp->request_sense_ptr += sense_sz;
931 sp->request_sense_length -= sense_sz;
932 if (sp->request_sense_length != 0)
933 ha->status_srb = sp;
934
1da177e4
LT		 935 DEBUG5(printk("%s(): Check condition Sense data, "
936 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
937 __func__, ha->host_no, b, t, l, cp,
938 cp->serial_number));
939 if (sense_sz)
940 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
941 CMD_ACTUAL_SNSLEN(cp)));
942 break;
943
944 case CS_DATA_UNDERRUN:
945 DEBUG2(printk(KERN_INFO
946 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n",
947 ha->host_no, t, l, comp_status, scsi_status));
948
949 resid = le32_to_cpu(pkt->residual_length);
950 if (scsi_status & SS_RESIDUAL_UNDER) {
951 cp->resid = resid;
952 CMD_RESID_LEN(cp) = resid;
953 }
954
955 /*
956 * Check to see if SCSI Status is non zero. If so report SCSI
957 * Status.
958 */
959 if (lscsi_status != 0) {
1da177e4
LT		 960 cp->result = DID_OK << 16 | lscsi_status;
961
962 if (lscsi_status != SS_CHECK_CONDITION)
963 break;
964
965 /* Copy Sense Data into sense buffer */
966 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
967
968 if (!(scsi_status & SS_SENSE_LEN_VALID))
969 break;
970
971 if (le16_to_cpu(pkt->req_sense_length) <
972 sizeof(cp->sense_buffer))
973 sense_sz = le16_to_cpu(pkt->req_sense_length);
974 else
975 sense_sz = sizeof(cp->sense_buffer);
976
977 CMD_ACTUAL_SNSLEN(cp) = sense_sz;
978 sp->request_sense_length = sense_sz;
979 sp->request_sense_ptr = cp->sense_buffer;
980
981 if (sp->request_sense_length > 32)
982 sense_sz = 32;
983
984 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
985
986 sp->request_sense_ptr += sense_sz;
987 sp->request_sense_length -= sense_sz;
988 if (sp->request_sense_length != 0)
989 ha->status_srb = sp;
990
1da177e4
LT		 991 DEBUG5(printk("%s(): Check condition Sense data, "
992 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
993 __func__, ha->host_no, b, t, l, cp,
994 cp->serial_number));
995 if (sense_sz)
996 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
997 CMD_ACTUAL_SNSLEN(cp)));
998 } else {
999 /*
1000 * If RISC reports underrun and target does not report
1001 * it then we must have a lost frame, so tell upper
1002 * layer to retry it by reporting a bus busy.
1003 */
1004 if (!(scsi_status & SS_RESIDUAL_UNDER)) {
1005 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1006 "frame(s) detected (%x of %x bytes)..."
1007 "retrying command.\n",
1008 ha->host_no, b, t, l, resid,
1009 cp->request_bufflen));
1010
1011 cp->result = DID_BUS_BUSY << 16;
1da177e4
LT		 1012 break;
1013 }
1014
1015 /* Handle mid-layer underflow */
1016 if ((unsigned)(cp->request_bufflen - resid) <
1017 cp->underflow) {
1018 qla_printk(KERN_INFO, ha,
1019 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1020 "detected (%x of %x bytes)...returning "
1021 "error status.\n",
1022 ha->host_no, b, t, l, resid,
1023 cp->request_bufflen);
1024
1025 cp->result = DID_ERROR << 16;
1026 break;
1027 }
1028
1029 /* Everybody online, looking good... */
1030 cp->result = DID_OK << 16;
1031 }
1032 break;
1033
1034 case CS_DATA_OVERRUN:
1035 DEBUG2(printk(KERN_INFO
1036 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1037 ha->host_no, t, l, comp_status, scsi_status));
1038 DEBUG2(printk(KERN_INFO
1039 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1040 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1041 cp->cmnd[4], cp->cmnd[5]));
1042 DEBUG2(printk(KERN_INFO
1043 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1044 "status!\n",
1045 cp->serial_number, cp->request_bufflen,
1046 le32_to_cpu(pkt->residual_length)));
1047
1048 cp->result = DID_ERROR << 16;
1049 break;
1050
1051 case CS_PORT_LOGGED_OUT:
1052 case CS_PORT_CONFIG_CHG:
1053 case CS_PORT_BUSY:
1054 case CS_INCOMPLETE:
1055 case CS_PORT_UNAVAILABLE:
1056 /*
1057 * If the port is in Target Down state, return all IOs for this
1058 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1059 * retry_queue.
1060 */
1da177e4
LT		 1061 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1062 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1063 ha->host_no, t, l, cp->serial_number, comp_status,
1064 atomic_read(&fcport->state)));
1065
f4f051eb 1066 cp->result = DID_BUS_BUSY << 16;
1da177e4
LT		 1067 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1068 qla2x00_mark_device_lost(ha, fcport, 1);
1069 }
1da177e4
LT		 1070 break;
1071
1072 case CS_RESET:
1073 DEBUG2(printk(KERN_INFO
1074 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1075 ha->host_no, comp_status, scsi_status));
1076
f4f051eb 1077 cp->result = DID_RESET << 16;
1da177e4
LT		 1078 break;
1079
1080 case CS_ABORTED:
1081 /*
1082 * hv2.19.12 - DID_ABORT does not retry the request if we
1083 * aborted this request then abort otherwise it must be a
1084 * reset.
1085 */
1086 DEBUG2(printk(KERN_INFO
1087 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1088 ha->host_no, comp_status, scsi_status));
1089
1090 cp->result = DID_RESET << 16;
1091 break;
1092
1093 case CS_TIMEOUT:
1094 DEBUG2(printk(KERN_INFO
1095 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1096 "sflags=%x.\n", ha->host_no, b, t, l, comp_status,
1097 scsi_status, le16_to_cpu(pkt->status_flags)));
1098
1099 cp->result = DID_BUS_BUSY << 16;
1100
1da177e4
LT		 1101 /* Check to see if logout occurred */
1102 if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) {
1103 qla2x00_mark_device_lost(ha, fcport, 1);
1104 }
1105 break;
1106
1107 case CS_QUEUE_FULL:
1108 DEBUG2(printk(KERN_INFO
1109 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1110 ha->host_no, comp_status, scsi_status));
1111
1112 /* SCSI Mid-Layer handles device queue full */
1113
1114 cp->result = DID_OK << 16 | lscsi_status;
1115
1da177e4
LT		 1116 break;
1117
1118 default:
1119 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1120 "0x%x-0x%x.\n",
1121 ha->host_no, comp_status, scsi_status));
1122 qla_printk(KERN_INFO, ha,
1123 "Unknown status detected 0x%x-0x%x.\n",
1124 comp_status, scsi_status);
1125
1126 cp->result = DID_ERROR << 16;
1127 break;
1128 }
1129
1130 /* Place command on done queue. */
1131 if (ha->status_srb == NULL)
f4f051eb 1132 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1133}
1134
1135/**
1136 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1137 * @ha: SCSI driver HA context
1138 * @pkt: Entry pointer
1139 *
1140 * Extended sense data.
1141 */
1142static void
1143qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
1144{
1145 uint8_t sense_sz = 0;
1146 srb_t *sp = ha->status_srb;
1147 struct scsi_cmnd *cp;
1148
1149 if (sp != NULL && sp->request_sense_length != 0) {
1150 cp = sp->cmd;
1151 if (cp == NULL) {
1152 DEBUG2(printk("%s(): Cmd already returned back to OS "
1153 "sp=%p sp->state:%d\n", __func__, sp, sp->state));
1154 qla_printk(KERN_INFO, ha,
1155 "cmd is NULL: already returned to OS (sp=%p)\n",
1156 sp);
1157
1158 ha->status_srb = NULL;
1159 return;
1160 }
1161
1162 if (sp->request_sense_length > sizeof(pkt->data)) {
1163 sense_sz = sizeof(pkt->data);
1164 } else {
1165 sense_sz = sp->request_sense_length;
1166 }
1167
1168 /* Move sense data. */
1169 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1170 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1171
1172 sp->request_sense_ptr += sense_sz;
1173 sp->request_sense_length -= sense_sz;
1174
1175 /* Place command on done queue. */
1176 if (sp->request_sense_length == 0) {
1da177e4 1177 ha->status_srb = NULL;
f4f051eb 1178 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1179 }
1180 }
1181}
1182
1183/**
1184 * qla2x00_error_entry() - Process an error entry.
1185 * @ha: SCSI driver HA context
1186 * @pkt: Entry pointer
1187 */
1188static void
1189qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
1190{
1191 srb_t *sp;
1192
1193#if defined(QL_DEBUG_LEVEL_2)
1194 if (pkt->entry_status & RF_INV_E_ORDER)
1195 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1196 else if (pkt->entry_status & RF_INV_E_COUNT)
1197 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1198 else if (pkt->entry_status & RF_INV_E_PARAM)
1199 qla_printk(KERN_ERR, ha,
1200 "%s: Invalid Entry Parameter\n", __func__);
1201 else if (pkt->entry_status & RF_INV_E_TYPE)
1202 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1203 else if (pkt->entry_status & RF_BUSY)
1204 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1205 else
1206 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1207#endif
1208
1209 /* Validate handle. */
1210 if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
1211 sp = ha->outstanding_cmds[pkt->handle];
1212 else
1213 sp = NULL;
1214
1215 if (sp) {
1216 /* Free outstanding command slot. */
1217 ha->outstanding_cmds[pkt->handle] = NULL;
354d6b21 1218
1da177e4
LT		 1219 /* Bad payload or header */
1220 if (pkt->entry_status &
1221 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1222 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1223 sp->cmd->result = DID_ERROR << 16;
1224 } else if (pkt->entry_status & RF_BUSY) {
1225 sp->cmd->result = DID_BUS_BUSY << 16;
1226 } else {
1227 sp->cmd->result = DID_ERROR << 16;
1228 }
f4f051eb 1229 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1230
1231 } else if (pkt->entry_type == COMMAND_A64_TYPE ||
1232 pkt->entry_type == COMMAND_TYPE) {
1233 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1234 ha->host_no));
1235 qla_printk(KERN_WARNING, ha,
1236 "Error entry - invalid handle\n");
1237
1238 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1239 if (ha->dpc_wait && !ha->dpc_active)
1240 up(ha->dpc_wait);
1241 }
1242}
1243
1244/**
1245 * qla2x00_ms_entry() - Process a Management Server entry.
1246 * @ha: SCSI driver HA context
1247 * @index: Response queue out pointer
1248 */
1249static void
1250qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt)
1251{
1252 srb_t *sp;
1253
1254 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1255 __func__, ha->host_no, pkt, pkt->handle1));
1256
1257 /* Validate handle. */
1258 if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
1259 sp = ha->outstanding_cmds[pkt->handle1];
1260 else
1261 sp = NULL;
1262
1263 if (sp == NULL) {
1264 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1265 ha->host_no));
1266 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");
1267
1268 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1269 return;
1270 }
1271
1272 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
1273 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
1274
1275 /* Free outstanding command slot. */
1276 ha->outstanding_cmds[pkt->handle1] = NULL;
1277
f4f051eb 1278 qla2x00_sp_compl(ha, sp);
1da177e4 1279}
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