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ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
blobe0fa877a58df04e7c8cc1f459f1643a99979333c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2011 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <scsi/scsi_tcq.h>
12 #include <scsi/scsi_bsg_fc.h>
13 #include <scsi/scsi_eh.h>
14
15 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
16 static void qla2x00_process_completed_request(struct scsi_qla_host *,
17 struct req_que *, uint32_t);
18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
21 sts_entry_t *);
22
23 /**
24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
25 * @irq:
26 * @dev_id: SCSI driver HA context
27 *
28 * Called by system whenever the host adapter generates an interrupt.
29 *
30 * Returns handled flag.
31 */
32 irqreturn_t
33 qla2100_intr_handler(int irq, void *dev_id)
34 {
35 scsi_qla_host_t *vha;
36 struct qla_hw_data *ha;
37 struct device_reg_2xxx __iomem *reg;
38 int status;
39 unsigned long iter;
40 uint16_t hccr;
41 uint16_t mb[4];
42 struct rsp_que *rsp;
43 unsigned long flags;
44
45 rsp = (struct rsp_que *) dev_id;
46 if (!rsp) {
47 printk(KERN_INFO
48 "%s(): NULL response queue pointer\n", __func__);
49 return (IRQ_NONE);
50 }
51
52 ha = rsp->hw;
53 reg = &ha->iobase->isp;
54 status = 0;
55
56 spin_lock_irqsave(&ha->hardware_lock, flags);
57 vha = pci_get_drvdata(ha->pdev);
58 for (iter = 50; iter--; ) {
59 hccr = RD_REG_WORD(&reg->hccr);
60 if (hccr & HCCR_RISC_PAUSE) {
61 if (pci_channel_offline(ha->pdev))
62 break;
63
64 /*
65 * Issue a "HARD" reset in order for the RISC interrupt
66 * bit to be cleared. Schedule a big hammmer to get
67 * out of the RISC PAUSED state.
68 */
69 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
70 RD_REG_WORD(&reg->hccr);
71
72 ha->isp_ops->fw_dump(vha, 1);
73 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
74 break;
75 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
76 break;
77
78 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
79 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
80 RD_REG_WORD(&reg->hccr);
81
82 /* Get mailbox data. */
83 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
84 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
85 qla2x00_mbx_completion(vha, mb[0]);
86 status |= MBX_INTERRUPT;
87 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
88 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
89 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
90 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
91 qla2x00_async_event(vha, rsp, mb);
92 } else {
93 /*EMPTY*/
94 DEBUG2(printk("scsi(%ld): Unrecognized "
95 "interrupt type (%d).\n",
96 vha->host_no, mb[0]));
97 }
98 /* Release mailbox registers. */
99 WRT_REG_WORD(&reg->semaphore, 0);
100 RD_REG_WORD(&reg->semaphore);
101 } else {
102 qla2x00_process_response_queue(rsp);
103
104 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
105 RD_REG_WORD(&reg->hccr);
106 }
107 }
108 spin_unlock_irqrestore(&ha->hardware_lock, flags);
109
110 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
111 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
112 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
113 complete(&ha->mbx_intr_comp);
114 }
115
116 return (IRQ_HANDLED);
117 }
118
119 /**
120 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
121 * @irq:
122 * @dev_id: SCSI driver HA context
123 *
124 * Called by system whenever the host adapter generates an interrupt.
125 *
126 * Returns handled flag.
127 */
128 irqreturn_t
129 qla2300_intr_handler(int irq, void *dev_id)
130 {
131 scsi_qla_host_t *vha;
132 struct device_reg_2xxx __iomem *reg;
133 int status;
134 unsigned long iter;
135 uint32_t stat;
136 uint16_t hccr;
137 uint16_t mb[4];
138 struct rsp_que *rsp;
139 struct qla_hw_data *ha;
140 unsigned long flags;
141
142 rsp = (struct rsp_que *) dev_id;
143 if (!rsp) {
144 printk(KERN_INFO
145 "%s(): NULL response queue pointer\n", __func__);
146 return (IRQ_NONE);
147 }
148
149 ha = rsp->hw;
150 reg = &ha->iobase->isp;
151 status = 0;
152
153 spin_lock_irqsave(&ha->hardware_lock, flags);
154 vha = pci_get_drvdata(ha->pdev);
155 for (iter = 50; iter--; ) {
156 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
157 if (stat & HSR_RISC_PAUSED) {
158 if (unlikely(pci_channel_offline(ha->pdev)))
159 break;
160
161 hccr = RD_REG_WORD(&reg->hccr);
162 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
163 qla_printk(KERN_INFO, ha, "Parity error -- "
164 "HCCR=%x, Dumping firmware!\n", hccr);
165 else
166 qla_printk(KERN_INFO, ha, "RISC paused -- "
167 "HCCR=%x, Dumping firmware!\n", hccr);
168
169 /*
170 * Issue a "HARD" reset in order for the RISC
171 * interrupt bit to be cleared. Schedule a big
172 * hammmer to get out of the RISC PAUSED state.
173 */
174 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
175 RD_REG_WORD(&reg->hccr);
176
177 ha->isp_ops->fw_dump(vha, 1);
178 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
179 break;
180 } else if ((stat & HSR_RISC_INT) == 0)
181 break;
182
183 switch (stat & 0xff) {
184 case 0x1:
185 case 0x2:
186 case 0x10:
187 case 0x11:
188 qla2x00_mbx_completion(vha, MSW(stat));
189 status |= MBX_INTERRUPT;
190
191 /* Release mailbox registers. */
192 WRT_REG_WORD(&reg->semaphore, 0);
193 break;
194 case 0x12:
195 mb[0] = MSW(stat);
196 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
197 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
198 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
199 qla2x00_async_event(vha, rsp, mb);
200 break;
201 case 0x13:
202 qla2x00_process_response_queue(rsp);
203 break;
204 case 0x15:
205 mb[0] = MBA_CMPLT_1_16BIT;
206 mb[1] = MSW(stat);
207 qla2x00_async_event(vha, rsp, mb);
208 break;
209 case 0x16:
210 mb[0] = MBA_SCSI_COMPLETION;
211 mb[1] = MSW(stat);
212 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
213 qla2x00_async_event(vha, rsp, mb);
214 break;
215 default:
216 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
217 "(%d).\n",
218 vha->host_no, stat & 0xff));
219 break;
220 }
221 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
222 RD_REG_WORD_RELAXED(&reg->hccr);
223 }
224 spin_unlock_irqrestore(&ha->hardware_lock, flags);
225
226 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
227 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
228 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
229 complete(&ha->mbx_intr_comp);
230 }
231
232 return (IRQ_HANDLED);
233 }
234
235 /**
236 * qla2x00_mbx_completion() - Process mailbox command completions.
237 * @ha: SCSI driver HA context
238 * @mb0: Mailbox0 register
239 */
240 static void
241 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
242 {
243 uint16_t cnt;
244 uint16_t __iomem *wptr;
245 struct qla_hw_data *ha = vha->hw;
246 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
247
248 /* Load return mailbox registers. */
249 ha->flags.mbox_int = 1;
250 ha->mailbox_out[0] = mb0;
251 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
252
253 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
254 if (IS_QLA2200(ha) && cnt == 8)
255 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
256 if (cnt == 4 || cnt == 5)
257 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
258 else
259 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
260
261 wptr++;
262 }
263
264 if (ha->mcp) {
265 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
266 __func__, vha->host_no, ha->mcp->mb[0]));
267 } else {
268 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
269 __func__, vha->host_no));
270 }
271 }
272
273 static void
274 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
275 {
276 static char *event[] =
277 { "Complete", "Request Notification", "Time Extension" };
278 int rval;
279 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
280 uint16_t __iomem *wptr;
281 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
282
283 /* Seed data -- mailbox1 -> mailbox7. */
284 wptr = (uint16_t __iomem *)&reg24->mailbox1;
285 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
286 mb[cnt] = RD_REG_WORD(wptr);
287
288 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
289 "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no,
290 event[aen & 0xff],
291 mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6]));
292
293 /* Acknowledgement needed? [Notify && non-zero timeout]. */
294 timeout = (descr >> 8) & 0xf;
295 if (aen != MBA_IDC_NOTIFY || !timeout)
296 return;
297
298 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- "
299 "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout));
300
301 rval = qla2x00_post_idc_ack_work(vha, mb);
302 if (rval != QLA_SUCCESS)
303 qla_printk(KERN_WARNING, vha->hw,
304 "IDC failed to post ACK.\n");
305 }
306
307 /**
308 * qla2x00_async_event() - Process aynchronous events.
309 * @ha: SCSI driver HA context
310 * @mb: Mailbox registers (0 - 3)
311 */
312 void
313 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
314 {
315 #define LS_UNKNOWN 2
316 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
317 char *link_speed;
318 uint16_t handle_cnt;
319 uint16_t cnt, mbx;
320 uint32_t handles[5];
321 struct qla_hw_data *ha = vha->hw;
322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
323 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
324 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
325 uint32_t rscn_entry, host_pid;
326 uint8_t rscn_queue_index;
327 unsigned long flags;
328
329 /* Setup to process RIO completion. */
330 handle_cnt = 0;
331 if (IS_QLA8XXX_TYPE(ha))
332 goto skip_rio;
333 switch (mb[0]) {
334 case MBA_SCSI_COMPLETION:
335 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
336 handle_cnt = 1;
337 break;
338 case MBA_CMPLT_1_16BIT:
339 handles[0] = mb[1];
340 handle_cnt = 1;
341 mb[0] = MBA_SCSI_COMPLETION;
342 break;
343 case MBA_CMPLT_2_16BIT:
344 handles[0] = mb[1];
345 handles[1] = mb[2];
346 handle_cnt = 2;
347 mb[0] = MBA_SCSI_COMPLETION;
348 break;
349 case MBA_CMPLT_3_16BIT:
350 handles[0] = mb[1];
351 handles[1] = mb[2];
352 handles[2] = mb[3];
353 handle_cnt = 3;
354 mb[0] = MBA_SCSI_COMPLETION;
355 break;
356 case MBA_CMPLT_4_16BIT:
357 handles[0] = mb[1];
358 handles[1] = mb[2];
359 handles[2] = mb[3];
360 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
361 handle_cnt = 4;
362 mb[0] = MBA_SCSI_COMPLETION;
363 break;
364 case MBA_CMPLT_5_16BIT:
365 handles[0] = mb[1];
366 handles[1] = mb[2];
367 handles[2] = mb[3];
368 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
369 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
370 handle_cnt = 5;
371 mb[0] = MBA_SCSI_COMPLETION;
372 break;
373 case MBA_CMPLT_2_32BIT:
374 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
375 handles[1] = le32_to_cpu(
376 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
377 RD_MAILBOX_REG(ha, reg, 6));
378 handle_cnt = 2;
379 mb[0] = MBA_SCSI_COMPLETION;
380 break;
381 default:
382 break;
383 }
384 skip_rio:
385 switch (mb[0]) {
386 case MBA_SCSI_COMPLETION: /* Fast Post */
387 if (!vha->flags.online)
388 break;
389
390 for (cnt = 0; cnt < handle_cnt; cnt++)
391 qla2x00_process_completed_request(vha, rsp->req,
392 handles[cnt]);
393 break;
394
395 case MBA_RESET: /* Reset */
396 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n",
397 vha->host_no));
398
399 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
400 break;
401
402 case MBA_SYSTEM_ERR: /* System Error */
403 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox7) : 0;
404 qla_printk(KERN_INFO, ha,
405 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
406 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
407
408 ha->isp_ops->fw_dump(vha, 1);
409
410 if (IS_FWI2_CAPABLE(ha)) {
411 if (mb[1] == 0 && mb[2] == 0) {
412 qla_printk(KERN_ERR, ha,
413 "Unrecoverable Hardware Error: adapter "
414 "marked OFFLINE!\n");
415 vha->flags.online = 0;
416 } else {
417 /* Check to see if MPI timeout occurred */
418 if ((mbx & MBX_3) && (ha->flags.port0))
419 set_bit(MPI_RESET_NEEDED,
420 &vha->dpc_flags);
421
422 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
423 }
424 } else if (mb[1] == 0) {
425 qla_printk(KERN_INFO, ha,
426 "Unrecoverable Hardware Error: adapter marked "
427 "OFFLINE!\n");
428 vha->flags.online = 0;
429 } else
430 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
431 break;
432
433 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
434 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n",
435 vha->host_no, mb[1]));
436 qla_printk(KERN_WARNING, ha,
437 "ISP Request Transfer Error (%x).\n", mb[1]);
438
439 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
440 break;
441
442 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
443 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
444 vha->host_no));
445 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
446
447 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
448 break;
449
450 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
451 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
452 vha->host_no));
453 break;
454
455 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
456 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no,
457 mb[1]));
458 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
459
460 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
461 atomic_set(&vha->loop_state, LOOP_DOWN);
462 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
463 qla2x00_mark_all_devices_lost(vha, 1);
464 }
465
466 if (vha->vp_idx) {
467 atomic_set(&vha->vp_state, VP_FAILED);
468 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
469 }
470
471 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
472 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
473
474 vha->flags.management_server_logged_in = 0;
475 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
476 break;
477
478 case MBA_LOOP_UP: /* Loop Up Event */
479 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
480 link_speed = link_speeds[0];
481 ha->link_data_rate = PORT_SPEED_1GB;
482 } else {
483 link_speed = link_speeds[LS_UNKNOWN];
484 if (mb[1] < 5)
485 link_speed = link_speeds[mb[1]];
486 else if (mb[1] == 0x13)
487 link_speed = link_speeds[5];
488 ha->link_data_rate = mb[1];
489 }
490
491 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
492 vha->host_no, link_speed));
493 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
494 link_speed);
495
496 vha->flags.management_server_logged_in = 0;
497 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
498 break;
499
500 case MBA_LOOP_DOWN: /* Loop Down Event */
501 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox4) : 0;
502 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
503 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
504 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3],
505 mbx));
506 qla_printk(KERN_INFO, ha,
507 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3],
508 mbx);
509
510 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
511 atomic_set(&vha->loop_state, LOOP_DOWN);
512 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
513 vha->device_flags |= DFLG_NO_CABLE;
514 qla2x00_mark_all_devices_lost(vha, 1);
515 }
516
517 if (vha->vp_idx) {
518 atomic_set(&vha->vp_state, VP_FAILED);
519 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
520 }
521
522 vha->flags.management_server_logged_in = 0;
523 ha->link_data_rate = PORT_SPEED_UNKNOWN;
524 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
525 break;
526
527 case MBA_LIP_RESET: /* LIP reset occurred */
528 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
529 vha->host_no, mb[1]));
530 qla_printk(KERN_INFO, ha,
531 "LIP reset occurred (%x).\n", mb[1]);
532
533 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
534 atomic_set(&vha->loop_state, LOOP_DOWN);
535 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
536 qla2x00_mark_all_devices_lost(vha, 1);
537 }
538
539 if (vha->vp_idx) {
540 atomic_set(&vha->vp_state, VP_FAILED);
541 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
542 }
543
544 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
545
546 ha->operating_mode = LOOP;
547 vha->flags.management_server_logged_in = 0;
548 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
549 break;
550
551 /* case MBA_DCBX_COMPLETE: */
552 case MBA_POINT_TO_POINT: /* Point-to-Point */
553 if (IS_QLA2100(ha))
554 break;
555
556 if (IS_QLA8XXX_TYPE(ha)) {
557 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x "
558 "%04x\n", vha->host_no, mb[1], mb[2], mb[3]));
559 if (ha->notify_dcbx_comp)
560 complete(&ha->dcbx_comp);
561
562 } else
563 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE "
564 "received.\n", vha->host_no));
565
566 /*
567 * Until there's a transition from loop down to loop up, treat
568 * this as loop down only.
569 */
570 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
571 atomic_set(&vha->loop_state, LOOP_DOWN);
572 if (!atomic_read(&vha->loop_down_timer))
573 atomic_set(&vha->loop_down_timer,
574 LOOP_DOWN_TIME);
575 qla2x00_mark_all_devices_lost(vha, 1);
576 }
577
578 if (vha->vp_idx) {
579 atomic_set(&vha->vp_state, VP_FAILED);
580 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
581 }
582
583 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
584 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
585
586 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
587 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
588
589 ha->flags.gpsc_supported = 1;
590 vha->flags.management_server_logged_in = 0;
591 break;
592
593 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
594 if (IS_QLA2100(ha))
595 break;
596
597 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
598 "received.\n",
599 vha->host_no));
600 qla_printk(KERN_INFO, ha,
601 "Configuration change detected: value=%x.\n", mb[1]);
602
603 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
604 atomic_set(&vha->loop_state, LOOP_DOWN);
605 if (!atomic_read(&vha->loop_down_timer))
606 atomic_set(&vha->loop_down_timer,
607 LOOP_DOWN_TIME);
608 qla2x00_mark_all_devices_lost(vha, 1);
609 }
610
611 if (vha->vp_idx) {
612 atomic_set(&vha->vp_state, VP_FAILED);
613 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
614 }
615
616 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
617 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
618 break;
619
620 case MBA_PORT_UPDATE: /* Port database update */
621 /*
622 * Handle only global and vn-port update events
623 *
624 * Relevant inputs:
625 * mb[1] = N_Port handle of changed port
626 * OR 0xffff for global event
627 * mb[2] = New login state
628 * 7 = Port logged out
629 * mb[3] = LSB is vp_idx, 0xff = all vps
630 *
631 * Skip processing if:
632 * Event is global, vp_idx is NOT all vps,
633 * vp_idx does not match
634 * Event is not global, vp_idx does not match
635 */
636 if (IS_QLA2XXX_MIDTYPE(ha) &&
637 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
638 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
639 break;
640
641 /* Global event -- port logout or port unavailable. */
642 if (mb[1] == 0xffff && mb[2] == 0x7) {
643 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
644 vha->host_no));
645 DEBUG(printk(KERN_INFO
646 "scsi(%ld): Port unavailable %04x %04x %04x.\n",
647 vha->host_no, mb[1], mb[2], mb[3]));
648
649 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
650 atomic_set(&vha->loop_state, LOOP_DOWN);
651 atomic_set(&vha->loop_down_timer,
652 LOOP_DOWN_TIME);
653 vha->device_flags |= DFLG_NO_CABLE;
654 qla2x00_mark_all_devices_lost(vha, 1);
655 }
656
657 if (vha->vp_idx) {
658 atomic_set(&vha->vp_state, VP_FAILED);
659 fc_vport_set_state(vha->fc_vport,
660 FC_VPORT_FAILED);
661 qla2x00_mark_all_devices_lost(vha, 1);
662 }
663
664 vha->flags.management_server_logged_in = 0;
665 ha->link_data_rate = PORT_SPEED_UNKNOWN;
666 break;
667 }
668
669 /*
670 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
671 * event etc. earlier indicating loop is down) then process
672 * it. Otherwise ignore it and Wait for RSCN to come in.
673 */
674 atomic_set(&vha->loop_down_timer, 0);
675 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
676 atomic_read(&vha->loop_state) != LOOP_DEAD) {
677 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
678 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1],
679 mb[2], mb[3]));
680 break;
681 }
682
683 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
684 vha->host_no));
685 DEBUG(printk(KERN_INFO
686 "scsi(%ld): Port database changed %04x %04x %04x.\n",
687 vha->host_no, mb[1], mb[2], mb[3]));
688
689 /*
690 * Mark all devices as missing so we will login again.
691 */
692 atomic_set(&vha->loop_state, LOOP_UP);
693
694 qla2x00_mark_all_devices_lost(vha, 1);
695
696 vha->flags.rscn_queue_overflow = 1;
697
698 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
699 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
700 break;
701
702 case MBA_RSCN_UPDATE: /* State Change Registration */
703 /* Check if the Vport has issued a SCR */
704 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
705 break;
706 /* Only handle SCNs for our Vport index. */
707 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
708 break;
709
710 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
711 vha->host_no));
712 DEBUG(printk(KERN_INFO
713 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
714 vha->host_no, mb[1], mb[2], mb[3]));
715
716 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
717 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
718 | vha->d_id.b.al_pa;
719 if (rscn_entry == host_pid) {
720 DEBUG(printk(KERN_INFO
721 "scsi(%ld): Ignoring RSCN update to local host "
722 "port ID (%06x)\n",
723 vha->host_no, host_pid));
724 break;
725 }
726
727 /* Ignore reserved bits from RSCN-payload. */
728 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
729 rscn_queue_index = vha->rscn_in_ptr + 1;
730 if (rscn_queue_index == MAX_RSCN_COUNT)
731 rscn_queue_index = 0;
732 if (rscn_queue_index != vha->rscn_out_ptr) {
733 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
734 vha->rscn_in_ptr = rscn_queue_index;
735 } else {
736 vha->flags.rscn_queue_overflow = 1;
737 }
738
739 atomic_set(&vha->loop_down_timer, 0);
740 vha->flags.management_server_logged_in = 0;
741
742 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
743 set_bit(RSCN_UPDATE, &vha->dpc_flags);
744 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
745 break;
746
747 /* case MBA_RIO_RESPONSE: */
748 case MBA_ZIO_RESPONSE:
749 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
750 vha->host_no));
751
752 if (IS_FWI2_CAPABLE(ha))
753 qla24xx_process_response_queue(vha, rsp);
754 else
755 qla2x00_process_response_queue(rsp);
756 break;
757
758 case MBA_DISCARD_RND_FRAME:
759 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
760 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
761 break;
762
763 case MBA_TRACE_NOTIFICATION:
764 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
765 vha->host_no, mb[1], mb[2]));
766 break;
767
768 case MBA_ISP84XX_ALERT:
769 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
770 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
771
772 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
773 switch (mb[1]) {
774 case A84_PANIC_RECOVERY:
775 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
776 "%04x %04x\n", mb[2], mb[3]);
777 break;
778 case A84_OP_LOGIN_COMPLETE:
779 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
780 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
781 "firmware version %x\n", ha->cs84xx->op_fw_version));
782 break;
783 case A84_DIAG_LOGIN_COMPLETE:
784 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
785 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
786 "diagnostic firmware version %x\n",
787 ha->cs84xx->diag_fw_version));
788 break;
789 case A84_GOLD_LOGIN_COMPLETE:
790 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
791 ha->cs84xx->fw_update = 1;
792 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
793 "firmware version %x\n",
794 ha->cs84xx->gold_fw_version));
795 break;
796 default:
797 qla_printk(KERN_ERR, ha,
798 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
799 mb[1], mb[2], mb[3]);
800 }
801 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
802 break;
803 case MBA_DCBX_START:
804 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n",
805 vha->host_no, mb[1], mb[2], mb[3]));
806 break;
807 case MBA_DCBX_PARAM_UPDATE:
808 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- "
809 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
810 break;
811 case MBA_FCF_CONF_ERR:
812 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- "
813 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
814 break;
815 case MBA_IDC_COMPLETE:
816 case MBA_IDC_NOTIFY:
817 case MBA_IDC_TIME_EXT:
818 qla81xx_idc_event(vha, mb[0], mb[1]);
819 break;
820 }
821
822 if (!vha->vp_idx && ha->num_vhosts)
823 qla2x00_alert_all_vps(rsp, mb);
824 }
825
826 /**
827 * qla2x00_process_completed_request() - Process a Fast Post response.
828 * @ha: SCSI driver HA context
829 * @index: SRB index
830 */
831 static void
832 qla2x00_process_completed_request(struct scsi_qla_host *vha,
833 struct req_que *req, uint32_t index)
834 {
835 srb_t *sp;
836 struct qla_hw_data *ha = vha->hw;
837
838 /* Validate handle. */
839 if (index >= MAX_OUTSTANDING_COMMANDS) {
840 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
841 vha->host_no, index));
842 qla_printk(KERN_WARNING, ha,
843 "Invalid SCSI completion handle %d.\n", index);
844
845 if (IS_QLA82XX(ha))
846 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
847 else
848 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
849 return;
850 }
851
852 sp = req->outstanding_cmds[index];
853 if (sp) {
854 /* Free outstanding command slot. */
855 req->outstanding_cmds[index] = NULL;
856
857 /* Save ISP completion status */
858 sp->cmd->result = DID_OK << 16;
859 qla2x00_sp_compl(ha, sp);
860 } else {
861 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
862 " handle(0x%x)\n", vha->host_no, req->id, index));
863 qla_printk(KERN_WARNING, ha,
864 "Invalid ISP SCSI completion handle\n");
865
866 if (IS_QLA82XX(ha))
867 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
868 else
869 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
870 }
871 }
872
873 static srb_t *
874 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
875 struct req_que *req, void *iocb)
876 {
877 struct qla_hw_data *ha = vha->hw;
878 sts_entry_t *pkt = iocb;
879 srb_t *sp = NULL;
880 uint16_t index;
881
882 index = LSW(pkt->handle);
883 if (index >= MAX_OUTSTANDING_COMMANDS) {
884 qla_printk(KERN_WARNING, ha,
885 "%s: Invalid completion handle (%x).\n", func, index);
886 if (IS_QLA82XX(ha))
887 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
888 else
889 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
890 goto done;
891 }
892 sp = req->outstanding_cmds[index];
893 if (!sp) {
894 qla_printk(KERN_WARNING, ha,
895 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
896 index);
897 return sp;
898 }
899 if (sp->handle != index) {
900 qla_printk(KERN_WARNING, ha,
901 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
902 index);
903 return NULL;
904 }
905
906 req->outstanding_cmds[index] = NULL;
907
908 done:
909 return sp;
910 }
911
912 static void
913 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
914 struct mbx_entry *mbx)
915 {
916 const char func[] = "MBX-IOCB";
917 const char *type;
918 fc_port_t *fcport;
919 srb_t *sp;
920 struct srb_iocb *lio;
921 struct srb_ctx *ctx;
922 uint16_t *data;
923 uint16_t status;
924
925 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
926 if (!sp)
927 return;
928
929 ctx = sp->ctx;
930 lio = ctx->u.iocb_cmd;
931 type = ctx->name;
932 fcport = sp->fcport;
933 data = lio->u.logio.data;
934
935 data[0] = MBS_COMMAND_ERROR;
936 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
937 QLA_LOGIO_LOGIN_RETRIED : 0;
938 if (mbx->entry_status) {
939 DEBUG2(printk(KERN_WARNING
940 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x "
941 "entry-status=%x status=%x state-flag=%x "
942 "status-flags=%x.\n",
943 fcport->vha->host_no, sp->handle, type,
944 fcport->d_id.b.domain, fcport->d_id.b.area,
945 fcport->d_id.b.al_pa, mbx->entry_status,
946 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
947 le16_to_cpu(mbx->status_flags)));
948
949 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
950
951 goto logio_done;
952 }
953
954 status = le16_to_cpu(mbx->status);
955 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD &&
956 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
957 status = 0;
958 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
959 DEBUG2(printk(KERN_DEBUG
960 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
961 "mbx1=%x.\n",
962 fcport->vha->host_no, sp->handle, type,
963 fcport->d_id.b.domain, fcport->d_id.b.area,
964 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1)));
965
966 data[0] = MBS_COMMAND_COMPLETE;
967 if (ctx->type == SRB_LOGIN_CMD) {
968 fcport->port_type = FCT_TARGET;
969 if (le16_to_cpu(mbx->mb1) & BIT_0)
970 fcport->port_type = FCT_INITIATOR;
971 else if (le16_to_cpu(mbx->mb1) & BIT_1)
972 fcport->flags |= FCF_FCP2_DEVICE;
973 }
974 goto logio_done;
975 }
976
977 data[0] = le16_to_cpu(mbx->mb0);
978 switch (data[0]) {
979 case MBS_PORT_ID_USED:
980 data[1] = le16_to_cpu(mbx->mb1);
981 break;
982 case MBS_LOOP_ID_USED:
983 break;
984 default:
985 data[0] = MBS_COMMAND_ERROR;
986 break;
987 }
988
989 DEBUG2(printk(KERN_WARNING
990 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x "
991 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
992 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
993 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
994 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
995 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
996 le16_to_cpu(mbx->mb7)));
997
998 logio_done:
999 lio->done(sp);
1000 }
1001
1002 static void
1003 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1004 sts_entry_t *pkt, int iocb_type)
1005 {
1006 const char func[] = "CT_IOCB";
1007 const char *type;
1008 struct qla_hw_data *ha = vha->hw;
1009 srb_t *sp;
1010 struct srb_ctx *sp_bsg;
1011 struct fc_bsg_job *bsg_job;
1012 uint16_t comp_status;
1013
1014 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1015 if (!sp)
1016 return;
1017
1018 sp_bsg = sp->ctx;
1019 bsg_job = sp_bsg->u.bsg_job;
1020
1021 type = NULL;
1022 switch (sp_bsg->type) {
1023 case SRB_CT_CMD:
1024 type = "ct pass-through";
1025 break;
1026 default:
1027 qla_printk(KERN_WARNING, ha,
1028 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1029 sp_bsg->type);
1030 return;
1031 }
1032
1033 comp_status = le16_to_cpu(pkt->comp_status);
1034
1035 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1036 * fc payload to the caller
1037 */
1038 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1039 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1040
1041 if (comp_status != CS_COMPLETE) {
1042 if (comp_status == CS_DATA_UNDERRUN) {
1043 bsg_job->reply->result = DID_OK << 16;
1044 bsg_job->reply->reply_payload_rcv_len =
1045 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1046
1047 DEBUG2(qla_printk(KERN_WARNING, ha,
1048 "scsi(%ld): CT pass-through-%s error "
1049 "comp_status-status=0x%x total_byte = 0x%x.\n",
1050 vha->host_no, type, comp_status,
1051 bsg_job->reply->reply_payload_rcv_len));
1052 } else {
1053 DEBUG2(qla_printk(KERN_WARNING, ha,
1054 "scsi(%ld): CT pass-through-%s error "
1055 "comp_status-status=0x%x.\n",
1056 vha->host_no, type, comp_status));
1057 bsg_job->reply->result = DID_ERROR << 16;
1058 bsg_job->reply->reply_payload_rcv_len = 0;
1059 }
1060 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1061 } else {
1062 bsg_job->reply->result = DID_OK << 16;
1063 bsg_job->reply->reply_payload_rcv_len =
1064 bsg_job->reply_payload.payload_len;
1065 bsg_job->reply_len = 0;
1066 }
1067
1068 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1069 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1070
1071 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1072 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1073
1074 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1075 kfree(sp->fcport);
1076
1077 kfree(sp->ctx);
1078 mempool_free(sp, ha->srb_mempool);
1079 bsg_job->job_done(bsg_job);
1080 }
1081
1082 static void
1083 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1084 struct sts_entry_24xx *pkt, int iocb_type)
1085 {
1086 const char func[] = "ELS_CT_IOCB";
1087 const char *type;
1088 struct qla_hw_data *ha = vha->hw;
1089 srb_t *sp;
1090 struct srb_ctx *sp_bsg;
1091 struct fc_bsg_job *bsg_job;
1092 uint16_t comp_status;
1093 uint32_t fw_status[3];
1094 uint8_t* fw_sts_ptr;
1095
1096 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1097 if (!sp)
1098 return;
1099 sp_bsg = sp->ctx;
1100 bsg_job = sp_bsg->u.bsg_job;
1101
1102 type = NULL;
1103 switch (sp_bsg->type) {
1104 case SRB_ELS_CMD_RPT:
1105 case SRB_ELS_CMD_HST:
1106 type = "els";
1107 break;
1108 case SRB_CT_CMD:
1109 type = "ct pass-through";
1110 break;
1111 default:
1112 qla_printk(KERN_WARNING, ha,
1113 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1114 sp_bsg->type);
1115 return;
1116 }
1117
1118 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1119 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1120 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1121
1122 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1123 * fc payload to the caller
1124 */
1125 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1126 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1127
1128 if (comp_status != CS_COMPLETE) {
1129 if (comp_status == CS_DATA_UNDERRUN) {
1130 bsg_job->reply->result = DID_OK << 16;
1131 bsg_job->reply->reply_payload_rcv_len =
1132 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1133
1134 DEBUG2(qla_printk(KERN_WARNING, ha,
1135 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1136 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1137 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2],
1138 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count)));
1139 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1140 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1141 }
1142 else {
1143 DEBUG2(qla_printk(KERN_WARNING, ha,
1144 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1145 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1146 vha->host_no, sp->handle, type, comp_status,
1147 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1),
1148 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2)));
1149 bsg_job->reply->result = DID_ERROR << 16;
1150 bsg_job->reply->reply_payload_rcv_len = 0;
1151 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1152 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1153 }
1154 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1155 }
1156 else {
1157 bsg_job->reply->result = DID_OK << 16;
1158 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1159 bsg_job->reply_len = 0;
1160 }
1161
1162 dma_unmap_sg(&ha->pdev->dev,
1163 bsg_job->request_payload.sg_list,
1164 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1165 dma_unmap_sg(&ha->pdev->dev,
1166 bsg_job->reply_payload.sg_list,
1167 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1168 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1169 (sp_bsg->type == SRB_CT_CMD))
1170 kfree(sp->fcport);
1171 kfree(sp->ctx);
1172 mempool_free(sp, ha->srb_mempool);
1173 bsg_job->job_done(bsg_job);
1174 }
1175
1176 static void
1177 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1178 struct logio_entry_24xx *logio)
1179 {
1180 const char func[] = "LOGIO-IOCB";
1181 const char *type;
1182 fc_port_t *fcport;
1183 srb_t *sp;
1184 struct srb_iocb *lio;
1185 struct srb_ctx *ctx;
1186 uint16_t *data;
1187 uint32_t iop[2];
1188
1189 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1190 if (!sp)
1191 return;
1192
1193 ctx = sp->ctx;
1194 lio = ctx->u.iocb_cmd;
1195 type = ctx->name;
1196 fcport = sp->fcport;
1197 data = lio->u.logio.data;
1198
1199 data[0] = MBS_COMMAND_ERROR;
1200 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1201 QLA_LOGIO_LOGIN_RETRIED : 0;
1202 if (logio->entry_status) {
1203 DEBUG2(printk(KERN_WARNING
1204 "scsi(%ld:%x): Async-%s error entry - "
1205 "portid=%02x%02x%02x entry-status=%x.\n",
1206 fcport->vha->host_no, sp->handle, type,
1207 fcport->d_id.b.domain, fcport->d_id.b.area,
1208 fcport->d_id.b.al_pa, logio->entry_status));
1209 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1210
1211 goto logio_done;
1212 }
1213
1214 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1215 DEBUG2(printk(KERN_DEBUG
1216 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
1217 "iop0=%x.\n",
1218 fcport->vha->host_no, sp->handle, type,
1219 fcport->d_id.b.domain, fcport->d_id.b.area,
1220 fcport->d_id.b.al_pa,
1221 le32_to_cpu(logio->io_parameter[0])));
1222
1223 data[0] = MBS_COMMAND_COMPLETE;
1224 if (ctx->type != SRB_LOGIN_CMD)
1225 goto logio_done;
1226
1227 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1228 if (iop[0] & BIT_4) {
1229 fcport->port_type = FCT_TARGET;
1230 if (iop[0] & BIT_8)
1231 fcport->flags |= FCF_FCP2_DEVICE;
1232 } else if (iop[0] & BIT_5)
1233 fcport->port_type = FCT_INITIATOR;
1234
1235 if (logio->io_parameter[7] || logio->io_parameter[8])
1236 fcport->supported_classes |= FC_COS_CLASS2;
1237 if (logio->io_parameter[9] || logio->io_parameter[10])
1238 fcport->supported_classes |= FC_COS_CLASS3;
1239
1240 goto logio_done;
1241 }
1242
1243 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1244 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1245 switch (iop[0]) {
1246 case LSC_SCODE_PORTID_USED:
1247 data[0] = MBS_PORT_ID_USED;
1248 data[1] = LSW(iop[1]);
1249 break;
1250 case LSC_SCODE_NPORT_USED:
1251 data[0] = MBS_LOOP_ID_USED;
1252 break;
1253 default:
1254 data[0] = MBS_COMMAND_ERROR;
1255 break;
1256 }
1257
1258 DEBUG2(printk(KERN_WARNING
1259 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x "
1260 "iop0=%x iop1=%x.\n",
1261 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
1262 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1263 le16_to_cpu(logio->comp_status),
1264 le32_to_cpu(logio->io_parameter[0]),
1265 le32_to_cpu(logio->io_parameter[1])));
1266
1267 logio_done:
1268 lio->done(sp);
1269 }
1270
1271 static void
1272 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1273 struct tsk_mgmt_entry *tsk)
1274 {
1275 const char func[] = "TMF-IOCB";
1276 const char *type;
1277 fc_port_t *fcport;
1278 srb_t *sp;
1279 struct srb_iocb *iocb;
1280 struct srb_ctx *ctx;
1281 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1282 int error = 1;
1283
1284 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1285 if (!sp)
1286 return;
1287
1288 ctx = sp->ctx;
1289 iocb = ctx->u.iocb_cmd;
1290 type = ctx->name;
1291 fcport = sp->fcport;
1292
1293 if (sts->entry_status) {
1294 DEBUG2(printk(KERN_WARNING
1295 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n",
1296 fcport->vha->host_no, sp->handle, type,
1297 sts->entry_status));
1298 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1299 DEBUG2(printk(KERN_WARNING
1300 "scsi(%ld:%x): Async-%s error - completion status(%x).\n",
1301 fcport->vha->host_no, sp->handle, type,
1302 sts->comp_status));
1303 } else if (!(le16_to_cpu(sts->scsi_status) &
1304 SS_RESPONSE_INFO_LEN_VALID)) {
1305 DEBUG2(printk(KERN_WARNING
1306 "scsi(%ld:%x): Async-%s error - no response info(%x).\n",
1307 fcport->vha->host_no, sp->handle, type,
1308 sts->scsi_status));
1309 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1310 DEBUG2(printk(KERN_WARNING
1311 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n",
1312 fcport->vha->host_no, sp->handle, type,
1313 sts->rsp_data_len));
1314 } else if (sts->data[3]) {
1315 DEBUG2(printk(KERN_WARNING
1316 "scsi(%ld:%x): Async-%s error - response(%x).\n",
1317 fcport->vha->host_no, sp->handle, type,
1318 sts->data[3]));
1319 } else {
1320 error = 0;
1321 }
1322
1323 if (error) {
1324 iocb->u.tmf.data = error;
1325 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts)));
1326 }
1327
1328 iocb->done(sp);
1329 }
1330
1331 /**
1332 * qla2x00_process_response_queue() - Process response queue entries.
1333 * @ha: SCSI driver HA context
1334 */
1335 void
1336 qla2x00_process_response_queue(struct rsp_que *rsp)
1337 {
1338 struct scsi_qla_host *vha;
1339 struct qla_hw_data *ha = rsp->hw;
1340 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1341 sts_entry_t *pkt;
1342 uint16_t handle_cnt;
1343 uint16_t cnt;
1344
1345 vha = pci_get_drvdata(ha->pdev);
1346
1347 if (!vha->flags.online)
1348 return;
1349
1350 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1351 pkt = (sts_entry_t *)rsp->ring_ptr;
1352
1353 rsp->ring_index++;
1354 if (rsp->ring_index == rsp->length) {
1355 rsp->ring_index = 0;
1356 rsp->ring_ptr = rsp->ring;
1357 } else {
1358 rsp->ring_ptr++;
1359 }
1360
1361 if (pkt->entry_status != 0) {
1362 DEBUG3(printk(KERN_INFO
1363 "scsi(%ld): Process error entry.\n", vha->host_no));
1364
1365 qla2x00_error_entry(vha, rsp, pkt);
1366 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1367 wmb();
1368 continue;
1369 }
1370
1371 switch (pkt->entry_type) {
1372 case STATUS_TYPE:
1373 qla2x00_status_entry(vha, rsp, pkt);
1374 break;
1375 case STATUS_TYPE_21:
1376 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1377 for (cnt = 0; cnt < handle_cnt; cnt++) {
1378 qla2x00_process_completed_request(vha, rsp->req,
1379 ((sts21_entry_t *)pkt)->handle[cnt]);
1380 }
1381 break;
1382 case STATUS_TYPE_22:
1383 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1384 for (cnt = 0; cnt < handle_cnt; cnt++) {
1385 qla2x00_process_completed_request(vha, rsp->req,
1386 ((sts22_entry_t *)pkt)->handle[cnt]);
1387 }
1388 break;
1389 case STATUS_CONT_TYPE:
1390 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1391 break;
1392 case MBX_IOCB_TYPE:
1393 qla2x00_mbx_iocb_entry(vha, rsp->req,
1394 (struct mbx_entry *)pkt);
1395 break;
1396 case CT_IOCB_TYPE:
1397 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1398 break;
1399 default:
1400 /* Type Not Supported. */
1401 DEBUG4(printk(KERN_WARNING
1402 "scsi(%ld): Received unknown response pkt type %x "
1403 "entry status=%x.\n",
1404 vha->host_no, pkt->entry_type, pkt->entry_status));
1405 break;
1406 }
1407 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1408 wmb();
1409 }
1410
1411 /* Adjust ring index */
1412 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1413 }
1414
1415 static inline void
1416
1417 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1418 uint32_t sense_len, struct rsp_que *rsp)
1419 {
1420 struct scsi_cmnd *cp = sp->cmd;
1421
1422 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1423 sense_len = SCSI_SENSE_BUFFERSIZE;
1424
1425 sp->request_sense_length = sense_len;
1426 sp->request_sense_ptr = cp->sense_buffer;
1427 if (sp->request_sense_length > par_sense_len)
1428 sense_len = par_sense_len;
1429
1430 memcpy(cp->sense_buffer, sense_data, sense_len);
1431
1432 sp->request_sense_ptr += sense_len;
1433 sp->request_sense_length -= sense_len;
1434 if (sp->request_sense_length != 0)
1435 rsp->status_srb = sp;
1436
1437 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1438 "cmd=%p\n", __func__, sp->fcport->vha->host_no,
1439 cp->device->channel, cp->device->id, cp->device->lun, cp));
1440 if (sense_len)
1441 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1442 }
1443
1444 struct scsi_dif_tuple {
1445 __be16 guard; /* Checksum */
1446 __be16 app_tag; /* APPL identifer */
1447 __be32 ref_tag; /* Target LBA or indirect LBA */
1448 };
1449
1450 /*
1451 * Checks the guard or meta-data for the type of error
1452 * detected by the HBA. In case of errors, we set the
1453 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1454 * to indicate to the kernel that the HBA detected error.
1455 */
1456 static inline void
1457 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1458 {
1459 struct scsi_cmnd *cmd = sp->cmd;
1460 struct scsi_dif_tuple *ep =
1461 (struct scsi_dif_tuple *)&sts24->data[20];
1462 struct scsi_dif_tuple *ap =
1463 (struct scsi_dif_tuple *)&sts24->data[12];
1464 uint32_t e_ref_tag, a_ref_tag;
1465 uint16_t e_app_tag, a_app_tag;
1466 uint16_t e_guard, a_guard;
1467
1468 e_ref_tag = be32_to_cpu(ep->ref_tag);
1469 a_ref_tag = be32_to_cpu(ap->ref_tag);
1470 e_app_tag = be16_to_cpu(ep->app_tag);
1471 a_app_tag = be16_to_cpu(ap->app_tag);
1472 e_guard = be16_to_cpu(ep->guard);
1473 a_guard = be16_to_cpu(ap->guard);
1474
1475 DEBUG18(printk(KERN_DEBUG
1476 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24));
1477
1478 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1479 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1480 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n",
1481 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1482 a_app_tag, e_app_tag, a_guard, e_guard));
1483
1484
1485 /* check guard */
1486 if (e_guard != a_guard) {
1487 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1488 0x10, 0x1);
1489 set_driver_byte(cmd, DRIVER_SENSE);
1490 set_host_byte(cmd, DID_ABORT);
1491 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1492 return;
1493 }
1494
1495 /* check appl tag */
1496 if (e_app_tag != a_app_tag) {
1497 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1498 0x10, 0x2);
1499 set_driver_byte(cmd, DRIVER_SENSE);
1500 set_host_byte(cmd, DID_ABORT);
1501 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1502 return;
1503 }
1504
1505 /* check ref tag */
1506 if (e_ref_tag != a_ref_tag) {
1507 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1508 0x10, 0x3);
1509 set_driver_byte(cmd, DRIVER_SENSE);
1510 set_host_byte(cmd, DID_ABORT);
1511 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1512 return;
1513 }
1514 }
1515
1516 /**
1517 * qla2x00_status_entry() - Process a Status IOCB entry.
1518 * @ha: SCSI driver HA context
1519 * @pkt: Entry pointer
1520 */
1521 static void
1522 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1523 {
1524 srb_t *sp;
1525 fc_port_t *fcport;
1526 struct scsi_cmnd *cp;
1527 sts_entry_t *sts;
1528 struct sts_entry_24xx *sts24;
1529 uint16_t comp_status;
1530 uint16_t scsi_status;
1531 uint16_t ox_id;
1532 uint8_t lscsi_status;
1533 int32_t resid;
1534 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1535 fw_resid_len;
1536 uint8_t *rsp_info, *sense_data;
1537 struct qla_hw_data *ha = vha->hw;
1538 uint32_t handle;
1539 uint16_t que;
1540 struct req_que *req;
1541 int logit = 1;
1542
1543 sts = (sts_entry_t *) pkt;
1544 sts24 = (struct sts_entry_24xx *) pkt;
1545 if (IS_FWI2_CAPABLE(ha)) {
1546 comp_status = le16_to_cpu(sts24->comp_status);
1547 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1548 } else {
1549 comp_status = le16_to_cpu(sts->comp_status);
1550 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1551 }
1552 handle = (uint32_t) LSW(sts->handle);
1553 que = MSW(sts->handle);
1554 req = ha->req_q_map[que];
1555
1556 /* Fast path completion. */
1557 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1558 qla2x00_process_completed_request(vha, req, handle);
1559
1560 return;
1561 }
1562
1563 /* Validate handle. */
1564 if (handle < MAX_OUTSTANDING_COMMANDS) {
1565 sp = req->outstanding_cmds[handle];
1566 req->outstanding_cmds[handle] = NULL;
1567 } else
1568 sp = NULL;
1569
1570 if (sp == NULL) {
1571 qla_printk(KERN_WARNING, ha,
1572 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no,
1573 sts->handle);
1574
1575 if (IS_QLA82XX(ha))
1576 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1577 else
1578 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1579 qla2xxx_wake_dpc(vha);
1580 return;
1581 }
1582 cp = sp->cmd;
1583 if (cp == NULL) {
1584 qla_printk(KERN_WARNING, ha,
1585 "scsi(%ld): Command already returned (0x%x/%p).\n",
1586 vha->host_no, sts->handle, sp);
1587
1588 return;
1589 }
1590
1591 lscsi_status = scsi_status & STATUS_MASK;
1592
1593 fcport = sp->fcport;
1594
1595 ox_id = 0;
1596 sense_len = par_sense_len = rsp_info_len = resid_len =
1597 fw_resid_len = 0;
1598 if (IS_FWI2_CAPABLE(ha)) {
1599 if (scsi_status & SS_SENSE_LEN_VALID)
1600 sense_len = le32_to_cpu(sts24->sense_len);
1601 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1602 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1603 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1604 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1605 if (comp_status == CS_DATA_UNDERRUN)
1606 fw_resid_len = le32_to_cpu(sts24->residual_len);
1607 rsp_info = sts24->data;
1608 sense_data = sts24->data;
1609 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1610 ox_id = le16_to_cpu(sts24->ox_id);
1611 par_sense_len = sizeof(sts24->data);
1612 } else {
1613 if (scsi_status & SS_SENSE_LEN_VALID)
1614 sense_len = le16_to_cpu(sts->req_sense_length);
1615 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1616 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1617 resid_len = le32_to_cpu(sts->residual_length);
1618 rsp_info = sts->rsp_info;
1619 sense_data = sts->req_sense_data;
1620 par_sense_len = sizeof(sts->req_sense_data);
1621 }
1622
1623 /* Check for any FCP transport errors. */
1624 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1625 /* Sense data lies beyond any FCP RESPONSE data. */
1626 if (IS_FWI2_CAPABLE(ha)) {
1627 sense_data += rsp_info_len;
1628 par_sense_len -= rsp_info_len;
1629 }
1630 if (rsp_info_len > 3 && rsp_info[3]) {
1631 DEBUG2(qla_printk(KERN_INFO, ha,
1632 "scsi(%ld:%d:%d): FCP I/O protocol failure "
1633 "(0x%x/0x%x).\n", vha->host_no, cp->device->id,
1634 cp->device->lun, rsp_info_len, rsp_info[3]));
1635
1636 cp->result = DID_BUS_BUSY << 16;
1637 goto out;
1638 }
1639 }
1640
1641 /* Check for overrun. */
1642 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1643 scsi_status & SS_RESIDUAL_OVER)
1644 comp_status = CS_DATA_OVERRUN;
1645
1646 /*
1647 * Based on Host and scsi status generate status code for Linux
1648 */
1649 switch (comp_status) {
1650 case CS_COMPLETE:
1651 case CS_QUEUE_FULL:
1652 if (scsi_status == 0) {
1653 cp->result = DID_OK << 16;
1654 break;
1655 }
1656 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1657 resid = resid_len;
1658 scsi_set_resid(cp, resid);
1659
1660 if (!lscsi_status &&
1661 ((unsigned)(scsi_bufflen(cp) - resid) <
1662 cp->underflow)) {
1663 qla_printk(KERN_INFO, ha,
1664 "scsi(%ld:%d:%d): Mid-layer underflow "
1665 "detected (0x%x of 0x%x bytes).\n",
1666 vha->host_no, cp->device->id,
1667 cp->device->lun, resid, scsi_bufflen(cp));
1668
1669 cp->result = DID_ERROR << 16;
1670 break;
1671 }
1672 }
1673 cp->result = DID_OK << 16 | lscsi_status;
1674
1675 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1676 DEBUG2(qla_printk(KERN_INFO, ha,
1677 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1678 vha->host_no, cp->device->id, cp->device->lun));
1679 break;
1680 }
1681 logit = 0;
1682 if (lscsi_status != SS_CHECK_CONDITION)
1683 break;
1684
1685 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1686 if (!(scsi_status & SS_SENSE_LEN_VALID))
1687 break;
1688
1689 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1690 rsp);
1691 break;
1692
1693 case CS_DATA_UNDERRUN:
1694 /* Use F/W calculated residual length. */
1695 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1696 scsi_set_resid(cp, resid);
1697 if (scsi_status & SS_RESIDUAL_UNDER) {
1698 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1699 DEBUG2(qla_printk(KERN_INFO, ha,
1700 "scsi(%ld:%d:%d) Dropped frame(s) detected "
1701 "(0x%x of 0x%x bytes).\n", vha->host_no,
1702 cp->device->id, cp->device->lun, resid,
1703 scsi_bufflen(cp)));
1704
1705 cp->result = DID_ERROR << 16 | lscsi_status;
1706 break;
1707 }
1708
1709 if (!lscsi_status &&
1710 ((unsigned)(scsi_bufflen(cp) - resid) <
1711 cp->underflow)) {
1712 qla_printk(KERN_INFO, ha,
1713 "scsi(%ld:%d:%d): Mid-layer underflow "
1714 "detected (0x%x of 0x%x bytes).\n",
1715 vha->host_no, cp->device->id,
1716 cp->device->lun, resid, scsi_bufflen(cp));
1717
1718 cp->result = DID_ERROR << 16;
1719 break;
1720 }
1721 } else {
1722 DEBUG2(qla_printk(KERN_INFO, ha,
1723 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x "
1724 "of 0x%x bytes).\n", vha->host_no, cp->device->id,
1725 cp->device->lun, resid, scsi_bufflen(cp)));
1726
1727 cp->result = DID_ERROR << 16 | lscsi_status;
1728 goto check_scsi_status;
1729 }
1730
1731 cp->result = DID_OK << 16 | lscsi_status;
1732 logit = 0;
1733
1734 check_scsi_status:
1735 /*
1736 * Check to see if SCSI Status is non zero. If so report SCSI
1737 * Status.
1738 */
1739 if (lscsi_status != 0) {
1740 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1741 DEBUG2(qla_printk(KERN_INFO, ha,
1742 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1743 vha->host_no, cp->device->id,
1744 cp->device->lun));
1745 logit = 1;
1746 break;
1747 }
1748 if (lscsi_status != SS_CHECK_CONDITION)
1749 break;
1750
1751 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1752 if (!(scsi_status & SS_SENSE_LEN_VALID))
1753 break;
1754
1755 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1756 sense_len, rsp);
1757 }
1758 break;
1759
1760 case CS_PORT_LOGGED_OUT:
1761 case CS_PORT_CONFIG_CHG:
1762 case CS_PORT_BUSY:
1763 case CS_INCOMPLETE:
1764 case CS_PORT_UNAVAILABLE:
1765 case CS_TIMEOUT:
1766 case CS_RESET:
1767
1768 /*
1769 * We are going to have the fc class block the rport
1770 * while we try to recover so instruct the mid layer
1771 * to requeue until the class decides how to handle this.
1772 */
1773 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1774
1775 if (comp_status == CS_TIMEOUT) {
1776 if (IS_FWI2_CAPABLE(ha))
1777 break;
1778 else if ((le16_to_cpu(sts->status_flags) &
1779 SF_LOGOUT_SENT) == 0)
1780 break;
1781 }
1782
1783 DEBUG2(qla_printk(KERN_INFO, ha,
1784 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n",
1785 vha->host_no, cp->device->id, cp->device->lun,
1786 atomic_read(&fcport->state)));
1787
1788 if (atomic_read(&fcport->state) == FCS_ONLINE)
1789 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1790 break;
1791
1792 case CS_ABORTED:
1793 cp->result = DID_RESET << 16;
1794 break;
1795
1796 case CS_DIF_ERROR:
1797 qla2x00_handle_dif_error(sp, sts24);
1798 break;
1799 default:
1800 cp->result = DID_ERROR << 16;
1801 break;
1802 }
1803
1804 out:
1805 if (logit)
1806 DEBUG2(qla_printk(KERN_INFO, ha,
1807 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) "
1808 "portid=%02x%02x%02x oxid=0x%x cdb=%02x%02x%02x len=0x%x "
1809 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no,
1810 cp->device->id, cp->device->lun, comp_status, scsi_status,
1811 cp->result, fcport->d_id.b.domain, fcport->d_id.b.area,
1812 fcport->d_id.b.al_pa, ox_id, cp->cmnd[0], cp->cmnd[1],
1813 cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, resid_len,
1814 fw_resid_len));
1815
1816 if (rsp->status_srb == NULL)
1817 qla2x00_sp_compl(ha, sp);
1818 }
1819
1820 /**
1821 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1822 * @ha: SCSI driver HA context
1823 * @pkt: Entry pointer
1824 *
1825 * Extended sense data.
1826 */
1827 static void
1828 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1829 {
1830 uint8_t sense_sz = 0;
1831 struct qla_hw_data *ha = rsp->hw;
1832 srb_t *sp = rsp->status_srb;
1833 struct scsi_cmnd *cp;
1834
1835 if (sp != NULL && sp->request_sense_length != 0) {
1836 cp = sp->cmd;
1837 if (cp == NULL) {
1838 DEBUG2(printk("%s(): Cmd already returned back to OS "
1839 "sp=%p.\n", __func__, sp));
1840 qla_printk(KERN_INFO, ha,
1841 "cmd is NULL: already returned to OS (sp=%p)\n",
1842 sp);
1843
1844 rsp->status_srb = NULL;
1845 return;
1846 }
1847
1848 if (sp->request_sense_length > sizeof(pkt->data)) {
1849 sense_sz = sizeof(pkt->data);
1850 } else {
1851 sense_sz = sp->request_sense_length;
1852 }
1853
1854 /* Move sense data. */
1855 if (IS_FWI2_CAPABLE(ha))
1856 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1857 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1858 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1859
1860 sp->request_sense_ptr += sense_sz;
1861 sp->request_sense_length -= sense_sz;
1862
1863 /* Place command on done queue. */
1864 if (sp->request_sense_length == 0) {
1865 rsp->status_srb = NULL;
1866 qla2x00_sp_compl(ha, sp);
1867 }
1868 }
1869 }
1870
1871 /**
1872 * qla2x00_error_entry() - Process an error entry.
1873 * @ha: SCSI driver HA context
1874 * @pkt: Entry pointer
1875 */
1876 static void
1877 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1878 {
1879 srb_t *sp;
1880 struct qla_hw_data *ha = vha->hw;
1881 uint32_t handle = LSW(pkt->handle);
1882 uint16_t que = MSW(pkt->handle);
1883 struct req_que *req = ha->req_q_map[que];
1884 #if defined(QL_DEBUG_LEVEL_2)
1885 if (pkt->entry_status & RF_INV_E_ORDER)
1886 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1887 else if (pkt->entry_status & RF_INV_E_COUNT)
1888 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1889 else if (pkt->entry_status & RF_INV_E_PARAM)
1890 qla_printk(KERN_ERR, ha,
1891 "%s: Invalid Entry Parameter\n", __func__);
1892 else if (pkt->entry_status & RF_INV_E_TYPE)
1893 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1894 else if (pkt->entry_status & RF_BUSY)
1895 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1896 else
1897 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1898 #endif
1899
1900 /* Validate handle. */
1901 if (handle < MAX_OUTSTANDING_COMMANDS)
1902 sp = req->outstanding_cmds[handle];
1903 else
1904 sp = NULL;
1905
1906 if (sp) {
1907 /* Free outstanding command slot. */
1908 req->outstanding_cmds[handle] = NULL;
1909
1910 /* Bad payload or header */
1911 if (pkt->entry_status &
1912 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1913 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1914 sp->cmd->result = DID_ERROR << 16;
1915 } else if (pkt->entry_status & RF_BUSY) {
1916 sp->cmd->result = DID_BUS_BUSY << 16;
1917 } else {
1918 sp->cmd->result = DID_ERROR << 16;
1919 }
1920 qla2x00_sp_compl(ha, sp);
1921
1922 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1923 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
1924 || pkt->entry_type == COMMAND_TYPE_6) {
1925 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1926 vha->host_no));
1927 qla_printk(KERN_WARNING, ha,
1928 "Error entry - invalid handle\n");
1929
1930 if (IS_QLA82XX(ha))
1931 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1932 else
1933 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1934 qla2xxx_wake_dpc(vha);
1935 }
1936 }
1937
1938 /**
1939 * qla24xx_mbx_completion() - Process mailbox command completions.
1940 * @ha: SCSI driver HA context
1941 * @mb0: Mailbox0 register
1942 */
1943 static void
1944 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1945 {
1946 uint16_t cnt;
1947 uint16_t __iomem *wptr;
1948 struct qla_hw_data *ha = vha->hw;
1949 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1950
1951 /* Load return mailbox registers. */
1952 ha->flags.mbox_int = 1;
1953 ha->mailbox_out[0] = mb0;
1954 wptr = (uint16_t __iomem *)&reg->mailbox1;
1955
1956 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1957 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1958 wptr++;
1959 }
1960
1961 if (ha->mcp) {
1962 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1963 __func__, vha->host_no, ha->mcp->mb[0]));
1964 } else {
1965 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1966 __func__, vha->host_no));
1967 }
1968 }
1969
1970 /**
1971 * qla24xx_process_response_queue() - Process response queue entries.
1972 * @ha: SCSI driver HA context
1973 */
1974 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1975 struct rsp_que *rsp)
1976 {
1977 struct sts_entry_24xx *pkt;
1978 struct qla_hw_data *ha = vha->hw;
1979
1980 if (!vha->flags.online)
1981 return;
1982
1983 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1984 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1985
1986 rsp->ring_index++;
1987 if (rsp->ring_index == rsp->length) {
1988 rsp->ring_index = 0;
1989 rsp->ring_ptr = rsp->ring;
1990 } else {
1991 rsp->ring_ptr++;
1992 }
1993
1994 if (pkt->entry_status != 0) {
1995 DEBUG3(printk(KERN_INFO
1996 "scsi(%ld): Process error entry.\n", vha->host_no));
1997
1998 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1999 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2000 wmb();
2001 continue;
2002 }
2003
2004 switch (pkt->entry_type) {
2005 case STATUS_TYPE:
2006 qla2x00_status_entry(vha, rsp, pkt);
2007 break;
2008 case STATUS_CONT_TYPE:
2009 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2010 break;
2011 case VP_RPT_ID_IOCB_TYPE:
2012 qla24xx_report_id_acquisition(vha,
2013 (struct vp_rpt_id_entry_24xx *)pkt);
2014 break;
2015 case LOGINOUT_PORT_IOCB_TYPE:
2016 qla24xx_logio_entry(vha, rsp->req,
2017 (struct logio_entry_24xx *)pkt);
2018 break;
2019 case TSK_MGMT_IOCB_TYPE:
2020 qla24xx_tm_iocb_entry(vha, rsp->req,
2021 (struct tsk_mgmt_entry *)pkt);
2022 break;
2023 case CT_IOCB_TYPE:
2024 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2025 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2026 break;
2027 case ELS_IOCB_TYPE:
2028 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2029 break;
2030 default:
2031 /* Type Not Supported. */
2032 DEBUG4(printk(KERN_WARNING
2033 "scsi(%ld): Received unknown response pkt type %x "
2034 "entry status=%x.\n",
2035 vha->host_no, pkt->entry_type, pkt->entry_status));
2036 break;
2037 }
2038 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2039 wmb();
2040 }
2041
2042 /* Adjust ring index */
2043 if (IS_QLA82XX(ha)) {
2044 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2045 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2046 } else
2047 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2048 }
2049
2050 static void
2051 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2052 {
2053 int rval;
2054 uint32_t cnt;
2055 struct qla_hw_data *ha = vha->hw;
2056 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2057
2058 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2059 return;
2060
2061 rval = QLA_SUCCESS;
2062 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2063 RD_REG_DWORD(&reg->iobase_addr);
2064 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2065 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2066 rval == QLA_SUCCESS; cnt--) {
2067 if (cnt) {
2068 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2069 udelay(10);
2070 } else
2071 rval = QLA_FUNCTION_TIMEOUT;
2072 }
2073 if (rval == QLA_SUCCESS)
2074 goto next_test;
2075
2076 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2077 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2078 rval == QLA_SUCCESS; cnt--) {
2079 if (cnt) {
2080 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2081 udelay(10);
2082 } else
2083 rval = QLA_FUNCTION_TIMEOUT;
2084 }
2085 if (rval != QLA_SUCCESS)
2086 goto done;
2087
2088 next_test:
2089 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2090 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
2091
2092 done:
2093 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2094 RD_REG_DWORD(&reg->iobase_window);
2095 }
2096
2097 /**
2098 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2099 * @irq:
2100 * @dev_id: SCSI driver HA context
2101 *
2102 * Called by system whenever the host adapter generates an interrupt.
2103 *
2104 * Returns handled flag.
2105 */
2106 irqreturn_t
2107 qla24xx_intr_handler(int irq, void *dev_id)
2108 {
2109 scsi_qla_host_t *vha;
2110 struct qla_hw_data *ha;
2111 struct device_reg_24xx __iomem *reg;
2112 int status;
2113 unsigned long iter;
2114 uint32_t stat;
2115 uint32_t hccr;
2116 uint16_t mb[4];
2117 struct rsp_que *rsp;
2118 unsigned long flags;
2119
2120 rsp = (struct rsp_que *) dev_id;
2121 if (!rsp) {
2122 printk(KERN_INFO
2123 "%s(): NULL response queue pointer\n", __func__);
2124 return IRQ_NONE;
2125 }
2126
2127 ha = rsp->hw;
2128 reg = &ha->iobase->isp24;
2129 status = 0;
2130
2131 if (unlikely(pci_channel_offline(ha->pdev)))
2132 return IRQ_HANDLED;
2133
2134 spin_lock_irqsave(&ha->hardware_lock, flags);
2135 vha = pci_get_drvdata(ha->pdev);
2136 for (iter = 50; iter--; ) {
2137 stat = RD_REG_DWORD(&reg->host_status);
2138 if (stat & HSRX_RISC_PAUSED) {
2139 if (unlikely(pci_channel_offline(ha->pdev)))
2140 break;
2141
2142 hccr = RD_REG_DWORD(&reg->hccr);
2143
2144 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2145 "Dumping firmware!\n", hccr);
2146
2147 qla2xxx_check_risc_status(vha);
2148
2149 ha->isp_ops->fw_dump(vha, 1);
2150 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2151 break;
2152 } else if ((stat & HSRX_RISC_INT) == 0)
2153 break;
2154
2155 switch (stat & 0xff) {
2156 case 0x1:
2157 case 0x2:
2158 case 0x10:
2159 case 0x11:
2160 qla24xx_mbx_completion(vha, MSW(stat));
2161 status |= MBX_INTERRUPT;
2162
2163 break;
2164 case 0x12:
2165 mb[0] = MSW(stat);
2166 mb[1] = RD_REG_WORD(&reg->mailbox1);
2167 mb[2] = RD_REG_WORD(&reg->mailbox2);
2168 mb[3] = RD_REG_WORD(&reg->mailbox3);
2169 qla2x00_async_event(vha, rsp, mb);
2170 break;
2171 case 0x13:
2172 case 0x14:
2173 qla24xx_process_response_queue(vha, rsp);
2174 break;
2175 default:
2176 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2177 "(%d).\n",
2178 vha->host_no, stat & 0xff));
2179 break;
2180 }
2181 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2182 RD_REG_DWORD_RELAXED(&reg->hccr);
2183 }
2184 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2185
2186 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2187 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2188 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2189 complete(&ha->mbx_intr_comp);
2190 }
2191
2192 return IRQ_HANDLED;
2193 }
2194
2195 static irqreturn_t
2196 qla24xx_msix_rsp_q(int irq, void *dev_id)
2197 {
2198 struct qla_hw_data *ha;
2199 struct rsp_que *rsp;
2200 struct device_reg_24xx __iomem *reg;
2201 struct scsi_qla_host *vha;
2202 unsigned long flags;
2203
2204 rsp = (struct rsp_que *) dev_id;
2205 if (!rsp) {
2206 printk(KERN_INFO
2207 "%s(): NULL response queue pointer\n", __func__);
2208 return IRQ_NONE;
2209 }
2210 ha = rsp->hw;
2211 reg = &ha->iobase->isp24;
2212
2213 spin_lock_irqsave(&ha->hardware_lock, flags);
2214
2215 vha = pci_get_drvdata(ha->pdev);
2216 qla24xx_process_response_queue(vha, rsp);
2217 if (!ha->flags.disable_msix_handshake) {
2218 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2219 RD_REG_DWORD_RELAXED(&reg->hccr);
2220 }
2221 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2222
2223 return IRQ_HANDLED;
2224 }
2225
2226 static irqreturn_t
2227 qla25xx_msix_rsp_q(int irq, void *dev_id)
2228 {
2229 struct qla_hw_data *ha;
2230 struct rsp_que *rsp;
2231 struct device_reg_24xx __iomem *reg;
2232 unsigned long flags;
2233
2234 rsp = (struct rsp_que *) dev_id;
2235 if (!rsp) {
2236 printk(KERN_INFO
2237 "%s(): NULL response queue pointer\n", __func__);
2238 return IRQ_NONE;
2239 }
2240 ha = rsp->hw;
2241
2242 /* Clear the interrupt, if enabled, for this response queue */
2243 if (rsp->options & ~BIT_6) {
2244 reg = &ha->iobase->isp24;
2245 spin_lock_irqsave(&ha->hardware_lock, flags);
2246 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2247 RD_REG_DWORD_RELAXED(&reg->hccr);
2248 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2249 }
2250 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2251
2252 return IRQ_HANDLED;
2253 }
2254
2255 static irqreturn_t
2256 qla24xx_msix_default(int irq, void *dev_id)
2257 {
2258 scsi_qla_host_t *vha;
2259 struct qla_hw_data *ha;
2260 struct rsp_que *rsp;
2261 struct device_reg_24xx __iomem *reg;
2262 int status;
2263 uint32_t stat;
2264 uint32_t hccr;
2265 uint16_t mb[4];
2266 unsigned long flags;
2267
2268 rsp = (struct rsp_que *) dev_id;
2269 if (!rsp) {
2270 DEBUG(printk(
2271 "%s(): NULL response queue pointer\n", __func__));
2272 return IRQ_NONE;
2273 }
2274 ha = rsp->hw;
2275 reg = &ha->iobase->isp24;
2276 status = 0;
2277
2278 spin_lock_irqsave(&ha->hardware_lock, flags);
2279 vha = pci_get_drvdata(ha->pdev);
2280 do {
2281 stat = RD_REG_DWORD(&reg->host_status);
2282 if (stat & HSRX_RISC_PAUSED) {
2283 if (unlikely(pci_channel_offline(ha->pdev)))
2284 break;
2285
2286 hccr = RD_REG_DWORD(&reg->hccr);
2287
2288 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2289 "Dumping firmware!\n", hccr);
2290
2291 qla2xxx_check_risc_status(vha);
2292
2293 ha->isp_ops->fw_dump(vha, 1);
2294 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2295 break;
2296 } else if ((stat & HSRX_RISC_INT) == 0)
2297 break;
2298
2299 switch (stat & 0xff) {
2300 case 0x1:
2301 case 0x2:
2302 case 0x10:
2303 case 0x11:
2304 qla24xx_mbx_completion(vha, MSW(stat));
2305 status |= MBX_INTERRUPT;
2306
2307 break;
2308 case 0x12:
2309 mb[0] = MSW(stat);
2310 mb[1] = RD_REG_WORD(&reg->mailbox1);
2311 mb[2] = RD_REG_WORD(&reg->mailbox2);
2312 mb[3] = RD_REG_WORD(&reg->mailbox3);
2313 qla2x00_async_event(vha, rsp, mb);
2314 break;
2315 case 0x13:
2316 case 0x14:
2317 qla24xx_process_response_queue(vha, rsp);
2318 break;
2319 default:
2320 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2321 "(%d).\n",
2322 vha->host_no, stat & 0xff));
2323 break;
2324 }
2325 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2326 } while (0);
2327 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2328
2329 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2330 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2331 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2332 complete(&ha->mbx_intr_comp);
2333 }
2334 return IRQ_HANDLED;
2335 }
2336
2337 /* Interrupt handling helpers. */
2338
2339 struct qla_init_msix_entry {
2340 const char *name;
2341 irq_handler_t handler;
2342 };
2343
2344 static struct qla_init_msix_entry msix_entries[3] = {
2345 { "qla2xxx (default)", qla24xx_msix_default },
2346 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2347 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2348 };
2349
2350 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2351 { "qla2xxx (default)", qla82xx_msix_default },
2352 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2353 };
2354
2355 static void
2356 qla24xx_disable_msix(struct qla_hw_data *ha)
2357 {
2358 int i;
2359 struct qla_msix_entry *qentry;
2360
2361 for (i = 0; i < ha->msix_count; i++) {
2362 qentry = &ha->msix_entries[i];
2363 if (qentry->have_irq)
2364 free_irq(qentry->vector, qentry->rsp);
2365 }
2366 pci_disable_msix(ha->pdev);
2367 kfree(ha->msix_entries);
2368 ha->msix_entries = NULL;
2369 ha->flags.msix_enabled = 0;
2370 }
2371
2372 static int
2373 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2374 {
2375 #define MIN_MSIX_COUNT 2
2376 int i, ret;
2377 struct msix_entry *entries;
2378 struct qla_msix_entry *qentry;
2379
2380 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2381 GFP_KERNEL);
2382 if (!entries)
2383 return -ENOMEM;
2384
2385 for (i = 0; i < ha->msix_count; i++)
2386 entries[i].entry = i;
2387
2388 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2389 if (ret) {
2390 if (ret < MIN_MSIX_COUNT)
2391 goto msix_failed;
2392
2393 qla_printk(KERN_WARNING, ha,
2394 "MSI-X: Failed to enable support -- %d/%d\n"
2395 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2396 ha->msix_count = ret;
2397 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2398 if (ret) {
2399 msix_failed:
2400 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2401 " support, giving up -- %d/%d\n",
2402 ha->msix_count, ret);
2403 goto msix_out;
2404 }
2405 ha->max_rsp_queues = ha->msix_count - 1;
2406 }
2407 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2408 ha->msix_count, GFP_KERNEL);
2409 if (!ha->msix_entries) {
2410 ret = -ENOMEM;
2411 goto msix_out;
2412 }
2413 ha->flags.msix_enabled = 1;
2414
2415 for (i = 0; i < ha->msix_count; i++) {
2416 qentry = &ha->msix_entries[i];
2417 qentry->vector = entries[i].vector;
2418 qentry->entry = entries[i].entry;
2419 qentry->have_irq = 0;
2420 qentry->rsp = NULL;
2421 }
2422
2423 /* Enable MSI-X vectors for the base queue */
2424 for (i = 0; i < 2; i++) {
2425 qentry = &ha->msix_entries[i];
2426 if (IS_QLA82XX(ha)) {
2427 ret = request_irq(qentry->vector,
2428 qla82xx_msix_entries[i].handler,
2429 0, qla82xx_msix_entries[i].name, rsp);
2430 } else {
2431 ret = request_irq(qentry->vector,
2432 msix_entries[i].handler,
2433 0, msix_entries[i].name, rsp);
2434 }
2435 if (ret) {
2436 qla_printk(KERN_WARNING, ha,
2437 "MSI-X: Unable to register handler -- %x/%d.\n",
2438 qentry->vector, ret);
2439 qla24xx_disable_msix(ha);
2440 ha->mqenable = 0;
2441 goto msix_out;
2442 }
2443 qentry->have_irq = 1;
2444 qentry->rsp = rsp;
2445 rsp->msix = qentry;
2446 }
2447
2448 /* Enable MSI-X vector for response queue update for queue 0 */
2449 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2450 ha->mqenable = 1;
2451
2452 msix_out:
2453 kfree(entries);
2454 return ret;
2455 }
2456
2457 int
2458 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2459 {
2460 int ret;
2461 device_reg_t __iomem *reg = ha->iobase;
2462
2463 /* If possible, enable MSI-X. */
2464 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2465 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2466 goto skip_msi;
2467
2468 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2469 (ha->pdev->subsystem_device == 0x7040 ||
2470 ha->pdev->subsystem_device == 0x7041 ||
2471 ha->pdev->subsystem_device == 0x1705)) {
2472 DEBUG2(qla_printk(KERN_WARNING, ha,
2473 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n",
2474 ha->pdev->subsystem_vendor,
2475 ha->pdev->subsystem_device));
2476 goto skip_msi;
2477 }
2478
2479 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2480 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2481 DEBUG2(qla_printk(KERN_WARNING, ha,
2482 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2483 ha->pdev->revision, ha->fw_attributes));
2484 goto skip_msix;
2485 }
2486
2487 ret = qla24xx_enable_msix(ha, rsp);
2488 if (!ret) {
2489 DEBUG2(qla_printk(KERN_INFO, ha,
2490 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2491 ha->fw_attributes));
2492 goto clear_risc_ints;
2493 }
2494 qla_printk(KERN_WARNING, ha,
2495 "MSI-X: Falling back-to MSI mode -- %d.\n", ret);
2496 skip_msix:
2497
2498 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2499 !IS_QLA8001(ha))
2500 goto skip_msi;
2501
2502 ret = pci_enable_msi(ha->pdev);
2503 if (!ret) {
2504 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2505 ha->flags.msi_enabled = 1;
2506 } else
2507 qla_printk(KERN_WARNING, ha,
2508 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2509 skip_msi:
2510
2511 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2512 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2513 QLA2XXX_DRIVER_NAME, rsp);
2514 if (ret) {
2515 qla_printk(KERN_WARNING, ha,
2516 "Failed to reserve interrupt %d already in use.\n",
2517 ha->pdev->irq);
2518 goto fail;
2519 }
2520
2521 clear_risc_ints:
2522
2523 /*
2524 * FIXME: Noted that 8014s were being dropped during NK testing.
2525 * Timing deltas during MSI-X/INTa transitions?
2526 */
2527 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2528 goto fail;
2529 spin_lock_irq(&ha->hardware_lock);
2530 if (IS_FWI2_CAPABLE(ha)) {
2531 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2532 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2533 } else {
2534 WRT_REG_WORD(&reg->isp.semaphore, 0);
2535 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2536 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2537 }
2538 spin_unlock_irq(&ha->hardware_lock);
2539
2540 fail:
2541 return ret;
2542 }
2543
2544 void
2545 qla2x00_free_irqs(scsi_qla_host_t *vha)
2546 {
2547 struct qla_hw_data *ha = vha->hw;
2548 struct rsp_que *rsp = ha->rsp_q_map[0];
2549
2550 if (ha->flags.msix_enabled)
2551 qla24xx_disable_msix(ha);
2552 else if (ha->flags.msi_enabled) {
2553 free_irq(ha->pdev->irq, rsp);
2554 pci_disable_msi(ha->pdev);
2555 } else
2556 free_irq(ha->pdev->irq, rsp);
2557 }
2558
2559
2560 int qla25xx_request_irq(struct rsp_que *rsp)
2561 {
2562 struct qla_hw_data *ha = rsp->hw;
2563 struct qla_init_msix_entry *intr = &msix_entries[2];
2564 struct qla_msix_entry *msix = rsp->msix;
2565 int ret;
2566
2567 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2568 if (ret) {
2569 qla_printk(KERN_WARNING, ha,
2570 "MSI-X: Unable to register handler -- %x/%d.\n",
2571 msix->vector, ret);
2572 return ret;
2573 }
2574 msix->have_irq = 1;
2575 msix->rsp = rsp;
2576 return ret;
2577 }
Linux with added FPC-III support