]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - drivers/scsi/qla2xxx/qla_isr.c
projects / mirror_ubuntu-bionic-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
[SCSI] remove some dead code in qla2xxx
[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / qla2xxx / qla_isr.c
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
21 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
22 static void qla2x00_async_event(scsi_qla_host_t *, uint32_t);
23 static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t);
24 void qla2x00_process_response_queue(struct scsi_qla_host *);
25 static void qla2x00_status_entry(scsi_qla_host_t *, sts_entry_t *);
26 static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
27 static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *);
28 static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *);
29
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 */
40 irqreturn_t
41 qla2100_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
42 {
43 scsi_qla_host_t *ha;
44 device_reg_t __iomem *reg;
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
57 reg = ha->iobase;
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
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
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 */
117 irqreturn_t
118 qla2300_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
119 {
120 scsi_qla_host_t *ha;
121 device_reg_t __iomem *reg;
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
136 reg = ha->iobase;
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
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
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 */
218 static void
219 qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0)
220 {
221 uint16_t cnt;
222 uint16_t __iomem *wptr;
223 device_reg_t __iomem *reg = ha->iobase;
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 */
255 static void
256 qla2x00_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];
264 device_reg_t __iomem *reg = ha->iobase;
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
359 if (IS_QLA2100(ha) || IS_QLA2200(ha))
360 qla2100_fw_dump(ha, 1);
361 else
362 qla2300_fw_dump(ha, 1);
363
364 if (mb[1] == 0) {
365 qla_printk(KERN_INFO, ha,
366 "Unrecoverable Hardware Error: adapter marked "
367 "OFFLINE!\n");
368 ha->flags.online = 0;
369 } else
370 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
371 break;
372
373 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
374 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
375 ha->host_no));
376 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
377
378 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
379 break;
380
381 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
382 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
383 ha->host_no));
384 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
385
386 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
387 break;
388
389 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
390 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
391 ha->host_no));
392 break;
393
394 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
395 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
396
397 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no,
398 mb[1]));
399 qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]);
400
401 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
402 atomic_set(&ha->loop_state, LOOP_DOWN);
403 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
404 qla2x00_mark_all_devices_lost(ha);
405 }
406
407 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
408
409 ha->flags.management_server_logged_in = 0;
410
411 /* Update AEN queue. */
412 qla2x00_enqueue_aen(ha, MBA_LIP_OCCURRED, NULL);
413
414 break;
415
416 case MBA_LOOP_UP: /* Loop Up Event */
417 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
418
419 ha->link_data_rate = 0;
420 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
421 link_speed = link_speeds[0];
422 } else {
423 link_speed = link_speeds[3];
424 if (mb[1] < 5)
425 link_speed = link_speeds[mb[1]];
426 ha->link_data_rate = mb[1];
427 }
428
429 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
430 ha->host_no, link_speed));
431 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
432 link_speed);
433
434 ha->flags.management_server_logged_in = 0;
435
436 /* Update AEN queue. */
437 qla2x00_enqueue_aen(ha, MBA_LOOP_UP, NULL);
438 break;
439
440 case MBA_LOOP_DOWN: /* Loop Down Event */
441 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN.\n",
442 ha->host_no));
443 qla_printk(KERN_INFO, ha, "LOOP DOWN detected.\n");
444
445 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
446 atomic_set(&ha->loop_state, LOOP_DOWN);
447 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
448 ha->device_flags |= DFLG_NO_CABLE;
449 qla2x00_mark_all_devices_lost(ha);
450 }
451
452 ha->flags.management_server_logged_in = 0;
453 ha->link_data_rate = 0;
454
455 /* Update AEN queue. */
456 qla2x00_enqueue_aen(ha, MBA_LOOP_DOWN, NULL);
457 break;
458
459 case MBA_LIP_RESET: /* LIP reset occurred */
460 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
461
462 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
463 ha->host_no, mb[1]));
464 qla_printk(KERN_INFO, ha,
465 "LIP reset occured (%x).\n", mb[1]);
466
467 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
468 atomic_set(&ha->loop_state, LOOP_DOWN);
469 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
470 qla2x00_mark_all_devices_lost(ha);
471 }
472
473 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
474
475 ha->operating_mode = LOOP;
476 ha->flags.management_server_logged_in = 0;
477
478 /* Update AEN queue. */
479 qla2x00_enqueue_aen(ha, MBA_LIP_RESET, NULL);
480
481 break;
482
483 case MBA_POINT_TO_POINT: /* Point-to-Point */
484 if (IS_QLA2100(ha))
485 break;
486
487 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
488 ha->host_no));
489
490 /*
491 * Until there's a transition from loop down to loop up, treat
492 * this as loop down only.
493 */
494 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
495 atomic_set(&ha->loop_state, LOOP_DOWN);
496 if (!atomic_read(&ha->loop_down_timer))
497 atomic_set(&ha->loop_down_timer,
498 LOOP_DOWN_TIME);
499 qla2x00_mark_all_devices_lost(ha);
500 }
501
502 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
503 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
504 }
505 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags);
506 break;
507
508 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
509 if (IS_QLA2100(ha))
510 break;
511
512 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
513
514 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
515 "received.\n",
516 ha->host_no));
517 qla_printk(KERN_INFO, ha,
518 "Configuration change detected: value=%x.\n", mb[1]);
519
520 if (atomic_read(&ha->loop_state) != LOOP_DOWN) {
521 atomic_set(&ha->loop_state, LOOP_DOWN);
522 if (!atomic_read(&ha->loop_down_timer))
523 atomic_set(&ha->loop_down_timer,
524 LOOP_DOWN_TIME);
525 qla2x00_mark_all_devices_lost(ha);
526 }
527
528 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
529 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
530 break;
531
532 case MBA_PORT_UPDATE: /* Port database update */
533 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
534 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
535
536 /*
537 * If a single remote port just logged into (or logged out of)
538 * us, create a new entry in our rscn fcports list and handle
539 * the event like an RSCN.
540 */
541 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) && !IS_QLA6312(ha) &&
542 !IS_QLA6322(ha) && ha->flags.init_done && mb[1] != 0xffff &&
543 ((ha->operating_mode == P2P && mb[1] != 0) ||
544 (ha->operating_mode != P2P && mb[1] !=
545 SNS_FIRST_LOOP_ID)) && (mb[2] == 6 || mb[2] == 7)) {
546 int rval;
547 fc_port_t *rscn_fcport;
548
549 /* Create new fcport for login. */
550 rscn_fcport = qla2x00_alloc_rscn_fcport(ha, GFP_ATOMIC);
551 if (rscn_fcport) {
552 DEBUG14(printk("scsi(%ld): Port Update -- "
553 "creating RSCN fcport %p for %x/%x.\n",
554 ha->host_no, rscn_fcport, mb[1], mb[2]));
555
556 rscn_fcport->loop_id = mb[1];
557 rscn_fcport->d_id.b24 = INVALID_PORT_ID;
558 atomic_set(&rscn_fcport->state,
559 FCS_DEVICE_LOST);
560 list_add_tail(&rscn_fcport->list,
561 &ha->rscn_fcports);
562
563 rval = qla2x00_handle_port_rscn(ha, 0,
564 rscn_fcport, 1);
565 if (rval == QLA_SUCCESS)
566 break;
567 } else {
568 DEBUG14(printk("scsi(%ld): Port Update -- "
569 "-- unable to allocate RSCN fcport "
570 "login.\n", ha->host_no));
571 }
572 }
573
574 /*
575 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET
576 * event etc. earlier indicating loop is down) then process
577 * it. Otherwise ignore it and Wait for RSCN to come in.
578 */
579 atomic_set(&ha->loop_down_timer, 0);
580 if (atomic_read(&ha->loop_state) != LOOP_DOWN &&
581 atomic_read(&ha->loop_state) != LOOP_DEAD) {
582 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
583 "ignored.\n", ha->host_no));
584 break;
585 }
586
587 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
588 ha->host_no));
589 DEBUG(printk(KERN_INFO
590 "scsi(%ld): Port database changed %04x %04x.\n",
591 ha->host_no, mb[1], mb[2]));
592
593 /*
594 * Mark all devices as missing so we will login again.
595 */
596 atomic_set(&ha->loop_state, LOOP_UP);
597
598 qla2x00_mark_all_devices_lost(ha);
599
600 ha->flags.rscn_queue_overflow = 1;
601
602 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
603 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
604
605 /* Update AEN queue. */
606 qla2x00_enqueue_aen(ha, MBA_PORT_UPDATE, NULL);
607 break;
608
609 case MBA_RSCN_UPDATE: /* State Change Registration */
610 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
611 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
612
613 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
614 ha->host_no));
615 DEBUG(printk(KERN_INFO
616 "scsi(%ld): RSCN database changed -- %04x %04x.\n",
617 ha->host_no, mb[1], mb[2]));
618
619 rscn_entry = (mb[1] << 16) | mb[2];
620 host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
621 ha->d_id.b.al_pa;
622 if (rscn_entry == host_pid) {
623 DEBUG(printk(KERN_INFO
624 "scsi(%ld): Ignoring RSCN update to local host "
625 "port ID (%06x)\n",
626 ha->host_no, host_pid));
627 break;
628 }
629
630 rscn_queue_index = ha->rscn_in_ptr + 1;
631 if (rscn_queue_index == MAX_RSCN_COUNT)
632 rscn_queue_index = 0;
633 if (rscn_queue_index != ha->rscn_out_ptr) {
634 ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry;
635 ha->rscn_in_ptr = rscn_queue_index;
636 } else {
637 ha->flags.rscn_queue_overflow = 1;
638 }
639
640 atomic_set(&ha->loop_state, LOOP_UPDATE);
641 atomic_set(&ha->loop_down_timer, 0);
642 ha->flags.management_server_logged_in = 0;
643
644 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
645 set_bit(RSCN_UPDATE, &ha->dpc_flags);
646
647 /* Update AEN queue. */
648 qla2x00_enqueue_aen(ha, MBA_RSCN_UPDATE, &mb[0]);
649 break;
650
651 /* case MBA_RIO_RESPONSE: */
652 case MBA_ZIO_RESPONSE:
653 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n",
654 ha->host_no));
655 DEBUG(printk(KERN_INFO
656 "scsi(%ld): [R|Z]IO update completion.\n",
657 ha->host_no));
658
659 qla2x00_process_response_queue(ha);
660 break;
661 }
662 }
663
664 /**
665 * qla2x00_process_completed_request() - Process a Fast Post response.
666 * @ha: SCSI driver HA context
667 * @index: SRB index
668 */
669 static void
670 qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index)
671 {
672 srb_t *sp;
673
674 /* Validate handle. */
675 if (index >= MAX_OUTSTANDING_COMMANDS) {
676 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
677 ha->host_no, index));
678 qla_printk(KERN_WARNING, ha,
679 "Invalid SCSI completion handle %d.\n", index);
680
681 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
682 return;
683 }
684
685 sp = ha->outstanding_cmds[index];
686 if (sp) {
687 /* Free outstanding command slot. */
688 ha->outstanding_cmds[index] = NULL;
689
690 CMD_COMPL_STATUS(sp->cmd) = 0L;
691 CMD_SCSI_STATUS(sp->cmd) = 0L;
692
693 /* Save ISP completion status */
694 sp->cmd->result = DID_OK << 16;
695 qla2x00_sp_compl(ha, sp);
696 } else {
697 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
698 ha->host_no));
699 qla_printk(KERN_WARNING, ha,
700 "Invalid ISP SCSI completion handle\n");
701
702 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
703 }
704 }
705
706 /**
707 * qla2x00_process_response_queue() - Process response queue entries.
708 * @ha: SCSI driver HA context
709 */
710 void
711 qla2x00_process_response_queue(struct scsi_qla_host *ha)
712 {
713 device_reg_t __iomem *reg = ha->iobase;
714 sts_entry_t *pkt;
715 uint16_t handle_cnt;
716 uint16_t cnt;
717
718 if (!ha->flags.online)
719 return;
720
721 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) {
722 pkt = (sts_entry_t *)ha->response_ring_ptr;
723
724 ha->rsp_ring_index++;
725 if (ha->rsp_ring_index == ha->response_q_length) {
726 ha->rsp_ring_index = 0;
727 ha->response_ring_ptr = ha->response_ring;
728 } else {
729 ha->response_ring_ptr++;
730 }
731
732 if (pkt->entry_status != 0) {
733 DEBUG3(printk(KERN_INFO
734 "scsi(%ld): Process error entry.\n", ha->host_no));
735
736 qla2x00_error_entry(ha, pkt);
737 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
738 wmb();
739 continue;
740 }
741
742 switch (pkt->entry_type) {
743 case STATUS_TYPE:
744 qla2x00_status_entry(ha, pkt);
745 break;
746 case STATUS_TYPE_21:
747 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
748 for (cnt = 0; cnt < handle_cnt; cnt++) {
749 qla2x00_process_completed_request(ha,
750 ((sts21_entry_t *)pkt)->handle[cnt]);
751 }
752 break;
753 case STATUS_TYPE_22:
754 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
755 for (cnt = 0; cnt < handle_cnt; cnt++) {
756 qla2x00_process_completed_request(ha,
757 ((sts22_entry_t *)pkt)->handle[cnt]);
758 }
759 break;
760 case STATUS_CONT_TYPE:
761 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt);
762 break;
763 case MS_IOCB_TYPE:
764 qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt);
765 break;
766 case MBX_IOCB_TYPE:
767 if (!IS_QLA2100(ha) && !IS_QLA2200(ha) &&
768 !IS_QLA6312(ha) && !IS_QLA6322(ha)) {
769 if (pkt->sys_define == SOURCE_ASYNC_IOCB) {
770 qla2x00_process_iodesc(ha,
771 (struct mbx_entry *)pkt);
772 } else {
773 /* MBX IOCB Type Not Supported. */
774 DEBUG4(printk(KERN_WARNING
775 "scsi(%ld): Received unknown MBX "
776 "IOCB response pkt type=%x "
777 "source=%x entry status=%x.\n",
778 ha->host_no, pkt->entry_type,
779 pkt->sys_define,
780 pkt->entry_status));
781 }
782 break;
783 }
784 /* Fallthrough. */
785 default:
786 /* Type Not Supported. */
787 DEBUG4(printk(KERN_WARNING
788 "scsi(%ld): Received unknown response pkt type %x "
789 "entry status=%x.\n",
790 ha->host_no, pkt->entry_type, pkt->entry_status));
791 break;
792 }
793 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
794 wmb();
795 }
796
797 /* Adjust ring index */
798 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index);
799 }
800
801 /**
802 * qla2x00_status_entry() - Process a Status IOCB entry.
803 * @ha: SCSI driver HA context
804 * @pkt: Entry pointer
805 */
806 static void
807 qla2x00_status_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
808 {
809 unsigned b, t, l;
810 srb_t *sp;
811 fc_port_t *fcport;
812 struct scsi_cmnd *cp;
813 uint16_t comp_status;
814 uint16_t scsi_status;
815 uint8_t lscsi_status;
816 int32_t resid;
817 uint8_t sense_sz = 0;
818 uint16_t rsp_info_len;
819
820 /* Fast path completion. */
821 if (le16_to_cpu(pkt->comp_status) == CS_COMPLETE &&
822 (le16_to_cpu(pkt->scsi_status) & SS_MASK) == 0) {
823 qla2x00_process_completed_request(ha, pkt->handle);
824
825 return;
826 }
827
828 /* Validate handle. */
829 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) {
830 sp = ha->outstanding_cmds[pkt->handle];
831 ha->outstanding_cmds[pkt->handle] = NULL;
832 } else
833 sp = NULL;
834
835 if (sp == NULL) {
836 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
837 ha->host_no));
838 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
839
840 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
841 if (ha->dpc_wait && !ha->dpc_active)
842 up(ha->dpc_wait);
843
844 return;
845 }
846 cp = sp->cmd;
847 if (cp == NULL) {
848 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
849 "pkt->handle=%d sp=%p sp->state:%d\n",
850 ha->host_no, pkt->handle, sp, sp->state));
851 qla_printk(KERN_WARNING, ha,
852 "Command is NULL: already returned to OS (sp=%p)\n", sp);
853
854 return;
855 }
856
857 comp_status = le16_to_cpu(pkt->comp_status);
858 /* Mask of reserved bits 12-15, before we examine the scsi status */
859 scsi_status = le16_to_cpu(pkt->scsi_status) & SS_MASK;
860 lscsi_status = scsi_status & STATUS_MASK;
861
862 CMD_ENTRY_STATUS(cp) = pkt->entry_status;
863 CMD_COMPL_STATUS(cp) = comp_status;
864 CMD_SCSI_STATUS(cp) = scsi_status;
865
866 /* Generate LU queue on cntrl, target, LUN */
867 b = cp->device->channel;
868 t = cp->device->id;
869 l = cp->device->lun,
870
871 fcport = sp->fcport;
872
873 /* Check for any FCP transport errors. */
874 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
875 rsp_info_len = le16_to_cpu(pkt->rsp_info_len);
876 if (rsp_info_len > 3 && pkt->rsp_info[3]) {
877 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
878 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
879 "retrying command\n", ha->host_no, b, t, l,
880 rsp_info_len, pkt->rsp_info[0], pkt->rsp_info[1],
881 pkt->rsp_info[2], pkt->rsp_info[3],
882 pkt->rsp_info[4], pkt->rsp_info[5],
883 pkt->rsp_info[6], pkt->rsp_info[7]));
884
885 cp->result = DID_BUS_BUSY << 16;
886 qla2x00_sp_compl(ha, sp);
887 return;
888 }
889 }
890
891 /*
892 * Based on Host and scsi status generate status code for Linux
893 */
894 switch (comp_status) {
895 case CS_COMPLETE:
896 if (scsi_status == 0) {
897 cp->result = DID_OK << 16;
898 break;
899 }
900 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
901 resid = le32_to_cpu(pkt->residual_length);
902 cp->resid = resid;
903 CMD_RESID_LEN(cp) = resid;
904 }
905 cp->result = DID_OK << 16 | lscsi_status;
906
907 if (lscsi_status != SS_CHECK_CONDITION)
908 break;
909
910 /*
911 * Copy Sense Data into sense buffer
912 */
913 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
914
915 if (!(scsi_status & SS_SENSE_LEN_VALID))
916 break;
917
918 if (le16_to_cpu(pkt->req_sense_length) <
919 sizeof(cp->sense_buffer))
920 sense_sz = le16_to_cpu(pkt->req_sense_length);
921 else
922 sense_sz = sizeof(cp->sense_buffer);
923
924 CMD_ACTUAL_SNSLEN(cp) = sense_sz;
925 sp->request_sense_length = sense_sz;
926 sp->request_sense_ptr = cp->sense_buffer;
927
928 if (sp->request_sense_length > 32)
929 sense_sz = 32;
930
931 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
932
933 sp->request_sense_ptr += sense_sz;
934 sp->request_sense_length -= sense_sz;
935 if (sp->request_sense_length != 0)
936 ha->status_srb = sp;
937
938 DEBUG5(printk("%s(): Check condition Sense data, "
939 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
940 __func__, ha->host_no, b, t, l, cp,
941 cp->serial_number));
942 if (sense_sz)
943 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
944 CMD_ACTUAL_SNSLEN(cp)));
945 break;
946
947 case CS_DATA_UNDERRUN:
948 DEBUG2(printk(KERN_INFO
949 "scsi(%ld:%d:%d) UNDERRUN status detected 0x%x-0x%x.\n",
950 ha->host_no, t, l, comp_status, scsi_status));
951
952 resid = le32_to_cpu(pkt->residual_length);
953 if (scsi_status & SS_RESIDUAL_UNDER) {
954 cp->resid = resid;
955 CMD_RESID_LEN(cp) = resid;
956 }
957
958 /*
959 * Check to see if SCSI Status is non zero. If so report SCSI
960 * Status.
961 */
962 if (lscsi_status != 0) {
963 cp->result = DID_OK << 16 | lscsi_status;
964
965 if (lscsi_status != SS_CHECK_CONDITION)
966 break;
967
968 /* Copy Sense Data into sense buffer */
969 memset(cp->sense_buffer, 0, sizeof(cp->sense_buffer));
970
971 if (!(scsi_status & SS_SENSE_LEN_VALID))
972 break;
973
974 if (le16_to_cpu(pkt->req_sense_length) <
975 sizeof(cp->sense_buffer))
976 sense_sz = le16_to_cpu(pkt->req_sense_length);
977 else
978 sense_sz = sizeof(cp->sense_buffer);
979
980 CMD_ACTUAL_SNSLEN(cp) = sense_sz;
981 sp->request_sense_length = sense_sz;
982 sp->request_sense_ptr = cp->sense_buffer;
983
984 if (sp->request_sense_length > 32)
985 sense_sz = 32;
986
987 memcpy(cp->sense_buffer, pkt->req_sense_data, sense_sz);
988
989 sp->request_sense_ptr += sense_sz;
990 sp->request_sense_length -= sense_sz;
991 if (sp->request_sense_length != 0)
992 ha->status_srb = sp;
993
994 DEBUG5(printk("%s(): Check condition Sense data, "
995 "scsi(%ld:%d:%d:%d) cmd=%p pid=%ld\n",
996 __func__, ha->host_no, b, t, l, cp,
997 cp->serial_number));
998 if (sense_sz)
999 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
1000 CMD_ACTUAL_SNSLEN(cp)));
1001 } else {
1002 /*
1003 * If RISC reports underrun and target does not report
1004 * it then we must have a lost frame, so tell upper
1005 * layer to retry it by reporting a bus busy.
1006 */
1007 if (!(scsi_status & SS_RESIDUAL_UNDER)) {
1008 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
1009 "frame(s) detected (%x of %x bytes)..."
1010 "retrying command.\n",
1011 ha->host_no, b, t, l, resid,
1012 cp->request_bufflen));
1013
1014 cp->result = DID_BUS_BUSY << 16;
1015 break;
1016 }
1017
1018 /* Handle mid-layer underflow */
1019 if ((unsigned)(cp->request_bufflen - resid) <
1020 cp->underflow) {
1021 qla_printk(KERN_INFO, ha,
1022 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1023 "detected (%x of %x bytes)...returning "
1024 "error status.\n",
1025 ha->host_no, b, t, l, resid,
1026 cp->request_bufflen);
1027
1028 cp->result = DID_ERROR << 16;
1029 break;
1030 }
1031
1032 /* Everybody online, looking good... */
1033 cp->result = DID_OK << 16;
1034 }
1035 break;
1036
1037 case CS_DATA_OVERRUN:
1038 DEBUG2(printk(KERN_INFO
1039 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
1040 ha->host_no, t, l, comp_status, scsi_status));
1041 DEBUG2(printk(KERN_INFO
1042 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1043 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1044 cp->cmnd[4], cp->cmnd[5]));
1045 DEBUG2(printk(KERN_INFO
1046 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1047 "status!\n",
1048 cp->serial_number, cp->request_bufflen,
1049 le32_to_cpu(pkt->residual_length)));
1050
1051 cp->result = DID_ERROR << 16;
1052 break;
1053
1054 case CS_PORT_LOGGED_OUT:
1055 case CS_PORT_CONFIG_CHG:
1056 case CS_PORT_BUSY:
1057 case CS_INCOMPLETE:
1058 case CS_PORT_UNAVAILABLE:
1059 /*
1060 * If the port is in Target Down state, return all IOs for this
1061 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1062 * retry_queue.
1063 */
1064 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1065 "pid=%ld, compl status=0x%x, port state=0x%x\n",
1066 ha->host_no, t, l, cp->serial_number, comp_status,
1067 atomic_read(&fcport->state)));
1068
1069 cp->result = DID_BUS_BUSY << 16;
1070 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1071 qla2x00_mark_device_lost(ha, fcport, 1);
1072 }
1073 break;
1074
1075 case CS_RESET:
1076 DEBUG2(printk(KERN_INFO
1077 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
1078 ha->host_no, comp_status, scsi_status));
1079
1080 cp->result = DID_RESET << 16;
1081 break;
1082
1083 case CS_ABORTED:
1084 /*
1085 * hv2.19.12 - DID_ABORT does not retry the request if we
1086 * aborted this request then abort otherwise it must be a
1087 * reset.
1088 */
1089 DEBUG2(printk(KERN_INFO
1090 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
1091 ha->host_no, comp_status, scsi_status));
1092
1093 cp->result = DID_RESET << 16;
1094 break;
1095
1096 case CS_TIMEOUT:
1097 DEBUG2(printk(KERN_INFO
1098 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
1099 "sflags=%x.\n", ha->host_no, b, t, l, comp_status,
1100 scsi_status, le16_to_cpu(pkt->status_flags)));
1101
1102 cp->result = DID_BUS_BUSY << 16;
1103
1104 /* Check to see if logout occurred */
1105 if ((le16_to_cpu(pkt->status_flags) & SF_LOGOUT_SENT)) {
1106 qla2x00_mark_device_lost(ha, fcport, 1);
1107 }
1108 break;
1109
1110 case CS_QUEUE_FULL:
1111 DEBUG2(printk(KERN_INFO
1112 "scsi(%ld): QUEUE FULL status detected 0x%x-0x%x.\n",
1113 ha->host_no, comp_status, scsi_status));
1114
1115 /* SCSI Mid-Layer handles device queue full */
1116
1117 cp->result = DID_OK << 16 | lscsi_status;
1118
1119 break;
1120
1121 default:
1122 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
1123 "0x%x-0x%x.\n",
1124 ha->host_no, comp_status, scsi_status));
1125 qla_printk(KERN_INFO, ha,
1126 "Unknown status detected 0x%x-0x%x.\n",
1127 comp_status, scsi_status);
1128
1129 cp->result = DID_ERROR << 16;
1130 break;
1131 }
1132
1133 /* Place command on done queue. */
1134 if (ha->status_srb == NULL)
1135 qla2x00_sp_compl(ha, sp);
1136 }
1137
1138 /**
1139 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1140 * @ha: SCSI driver HA context
1141 * @pkt: Entry pointer
1142 *
1143 * Extended sense data.
1144 */
1145 static void
1146 qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt)
1147 {
1148 uint8_t sense_sz = 0;
1149 srb_t *sp = ha->status_srb;
1150 struct scsi_cmnd *cp;
1151
1152 if (sp != NULL && sp->request_sense_length != 0) {
1153 cp = sp->cmd;
1154 if (cp == NULL) {
1155 DEBUG2(printk("%s(): Cmd already returned back to OS "
1156 "sp=%p sp->state:%d\n", __func__, sp, sp->state));
1157 qla_printk(KERN_INFO, ha,
1158 "cmd is NULL: already returned to OS (sp=%p)\n",
1159 sp);
1160
1161 ha->status_srb = NULL;
1162 return;
1163 }
1164
1165 if (sp->request_sense_length > sizeof(pkt->data)) {
1166 sense_sz = sizeof(pkt->data);
1167 } else {
1168 sense_sz = sp->request_sense_length;
1169 }
1170
1171 /* Move sense data. */
1172 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1173 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1174
1175 sp->request_sense_ptr += sense_sz;
1176 sp->request_sense_length -= sense_sz;
1177
1178 /* Place command on done queue. */
1179 if (sp->request_sense_length == 0) {
1180 ha->status_srb = NULL;
1181 qla2x00_sp_compl(ha, sp);
1182 }
1183 }
1184 }
1185
1186 /**
1187 * qla2x00_error_entry() - Process an error entry.
1188 * @ha: SCSI driver HA context
1189 * @pkt: Entry pointer
1190 */
1191 static void
1192 qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt)
1193 {
1194 srb_t *sp;
1195
1196 #if defined(QL_DEBUG_LEVEL_2)
1197 if (pkt->entry_status & RF_INV_E_ORDER)
1198 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1199 else if (pkt->entry_status & RF_INV_E_COUNT)
1200 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1201 else if (pkt->entry_status & RF_INV_E_PARAM)
1202 qla_printk(KERN_ERR, ha,
1203 "%s: Invalid Entry Parameter\n", __func__);
1204 else if (pkt->entry_status & RF_INV_E_TYPE)
1205 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1206 else if (pkt->entry_status & RF_BUSY)
1207 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1208 else
1209 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1210 #endif
1211
1212 /* Validate handle. */
1213 if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
1214 sp = ha->outstanding_cmds[pkt->handle];
1215 else
1216 sp = NULL;
1217
1218 if (sp) {
1219 /* Free outstanding command slot. */
1220 ha->outstanding_cmds[pkt->handle] = NULL;
1221
1222 /* Bad payload or header */
1223 if (pkt->entry_status &
1224 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1225 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1226 sp->cmd->result = DID_ERROR << 16;
1227 } else if (pkt->entry_status & RF_BUSY) {
1228 sp->cmd->result = DID_BUS_BUSY << 16;
1229 } else {
1230 sp->cmd->result = DID_ERROR << 16;
1231 }
1232 qla2x00_sp_compl(ha, sp);
1233
1234 } else if (pkt->entry_type == COMMAND_A64_TYPE ||
1235 pkt->entry_type == COMMAND_TYPE) {
1236 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1237 ha->host_no));
1238 qla_printk(KERN_WARNING, ha,
1239 "Error entry - invalid handle\n");
1240
1241 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1242 if (ha->dpc_wait && !ha->dpc_active)
1243 up(ha->dpc_wait);
1244 }
1245 }
1246
1247 /**
1248 * qla2x00_ms_entry() - Process a Management Server entry.
1249 * @ha: SCSI driver HA context
1250 * @index: Response queue out pointer
1251 */
1252 static void
1253 qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt)
1254 {
1255 srb_t *sp;
1256
1257 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n",
1258 __func__, ha->host_no, pkt, pkt->handle1));
1259
1260 /* Validate handle. */
1261 if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS)
1262 sp = ha->outstanding_cmds[pkt->handle1];
1263 else
1264 sp = NULL;
1265
1266 if (sp == NULL) {
1267 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n",
1268 ha->host_no));
1269 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n");
1270
1271 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1272 return;
1273 }
1274
1275 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status);
1276 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status;
1277
1278 /* Free outstanding command slot. */
1279 ha->outstanding_cmds[pkt->handle1] = NULL;
1280
1281 qla2x00_sp_compl(ha, sp);
1282 }
ubuntu-bionic-kernel mirror