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isci: Removed struct sci_base_object from state machine.
[linux-2.6/x86.git] / drivers / scsi / qla2xxx / qla_isr.c
blob1b60a95adb5064b9edb0762e772a8e44c167d24c
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_state, LOOP_UPDATE);
740 atomic_set(&vha->loop_down_timer, 0);
741 vha->flags.management_server_logged_in = 0;
742
743 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
744 set_bit(RSCN_UPDATE, &vha->dpc_flags);
745 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
746 break;
747
748 /* case MBA_RIO_RESPONSE: */
749 case MBA_ZIO_RESPONSE:
750 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
751 vha->host_no));
752
753 if (IS_FWI2_CAPABLE(ha))
754 qla24xx_process_response_queue(vha, rsp);
755 else
756 qla2x00_process_response_queue(rsp);
757 break;
758
759 case MBA_DISCARD_RND_FRAME:
760 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
761 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
762 break;
763
764 case MBA_TRACE_NOTIFICATION:
765 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
766 vha->host_no, mb[1], mb[2]));
767 break;
768
769 case MBA_ISP84XX_ALERT:
770 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
771 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
772
773 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
774 switch (mb[1]) {
775 case A84_PANIC_RECOVERY:
776 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
777 "%04x %04x\n", mb[2], mb[3]);
778 break;
779 case A84_OP_LOGIN_COMPLETE:
780 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
781 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
782 "firmware version %x\n", ha->cs84xx->op_fw_version));
783 break;
784 case A84_DIAG_LOGIN_COMPLETE:
785 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
786 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
787 "diagnostic firmware version %x\n",
788 ha->cs84xx->diag_fw_version));
789 break;
790 case A84_GOLD_LOGIN_COMPLETE:
791 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
792 ha->cs84xx->fw_update = 1;
793 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
794 "firmware version %x\n",
795 ha->cs84xx->gold_fw_version));
796 break;
797 default:
798 qla_printk(KERN_ERR, ha,
799 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
800 mb[1], mb[2], mb[3]);
801 }
802 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
803 break;
804 case MBA_DCBX_START:
805 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n",
806 vha->host_no, mb[1], mb[2], mb[3]));
807 break;
808 case MBA_DCBX_PARAM_UPDATE:
809 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- "
810 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
811 break;
812 case MBA_FCF_CONF_ERR:
813 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- "
814 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
815 break;
816 case MBA_IDC_COMPLETE:
817 case MBA_IDC_NOTIFY:
818 case MBA_IDC_TIME_EXT:
819 qla81xx_idc_event(vha, mb[0], mb[1]);
820 break;
821 }
822
823 if (!vha->vp_idx && ha->num_vhosts)
824 qla2x00_alert_all_vps(rsp, mb);
825 }
826
827 /**
828 * qla2x00_process_completed_request() - Process a Fast Post response.
829 * @ha: SCSI driver HA context
830 * @index: SRB index
831 */
832 static void
833 qla2x00_process_completed_request(struct scsi_qla_host *vha,
834 struct req_que *req, uint32_t index)
835 {
836 srb_t *sp;
837 struct qla_hw_data *ha = vha->hw;
838
839 /* Validate handle. */
840 if (index >= MAX_OUTSTANDING_COMMANDS) {
841 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
842 vha->host_no, index));
843 qla_printk(KERN_WARNING, ha,
844 "Invalid SCSI completion handle %d.\n", index);
845
846 if (IS_QLA82XX(ha))
847 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
848 else
849 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
850 return;
851 }
852
853 sp = req->outstanding_cmds[index];
854 if (sp) {
855 /* Free outstanding command slot. */
856 req->outstanding_cmds[index] = NULL;
857
858 /* Save ISP completion status */
859 sp->cmd->result = DID_OK << 16;
860 qla2x00_sp_compl(ha, sp);
861 } else {
862 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
863 " handle(0x%x)\n", vha->host_no, req->id, index));
864 qla_printk(KERN_WARNING, ha,
865 "Invalid ISP SCSI completion handle\n");
866
867 if (IS_QLA82XX(ha))
868 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
869 else
870 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
871 }
872 }
873
874 static srb_t *
875 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
876 struct req_que *req, void *iocb)
877 {
878 struct qla_hw_data *ha = vha->hw;
879 sts_entry_t *pkt = iocb;
880 srb_t *sp = NULL;
881 uint16_t index;
882
883 index = LSW(pkt->handle);
884 if (index >= MAX_OUTSTANDING_COMMANDS) {
885 qla_printk(KERN_WARNING, ha,
886 "%s: Invalid completion handle (%x).\n", func, index);
887 if (IS_QLA82XX(ha))
888 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
889 else
890 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
891 goto done;
892 }
893 sp = req->outstanding_cmds[index];
894 if (!sp) {
895 qla_printk(KERN_WARNING, ha,
896 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
897 index);
898 return sp;
899 }
900 if (sp->handle != index) {
901 qla_printk(KERN_WARNING, ha,
902 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
903 index);
904 return NULL;
905 }
906
907 req->outstanding_cmds[index] = NULL;
908
909 done:
910 return sp;
911 }
912
913 static void
914 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
915 struct mbx_entry *mbx)
916 {
917 const char func[] = "MBX-IOCB";
918 const char *type;
919 fc_port_t *fcport;
920 srb_t *sp;
921 struct srb_iocb *lio;
922 struct srb_ctx *ctx;
923 uint16_t *data;
924 uint16_t status;
925
926 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
927 if (!sp)
928 return;
929
930 ctx = sp->ctx;
931 lio = ctx->u.iocb_cmd;
932 type = ctx->name;
933 fcport = sp->fcport;
934 data = lio->u.logio.data;
935
936 data[0] = MBS_COMMAND_ERROR;
937 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
938 QLA_LOGIO_LOGIN_RETRIED : 0;
939 if (mbx->entry_status) {
940 DEBUG2(printk(KERN_WARNING
941 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x "
942 "entry-status=%x status=%x state-flag=%x "
943 "status-flags=%x.\n",
944 fcport->vha->host_no, sp->handle, type,
945 fcport->d_id.b.domain, fcport->d_id.b.area,
946 fcport->d_id.b.al_pa, mbx->entry_status,
947 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
948 le16_to_cpu(mbx->status_flags)));
949
950 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
951
952 goto logio_done;
953 }
954
955 status = le16_to_cpu(mbx->status);
956 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD &&
957 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
958 status = 0;
959 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
960 DEBUG2(printk(KERN_DEBUG
961 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
962 "mbx1=%x.\n",
963 fcport->vha->host_no, sp->handle, type,
964 fcport->d_id.b.domain, fcport->d_id.b.area,
965 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1)));
966
967 data[0] = MBS_COMMAND_COMPLETE;
968 if (ctx->type == SRB_LOGIN_CMD) {
969 fcport->port_type = FCT_TARGET;
970 if (le16_to_cpu(mbx->mb1) & BIT_0)
971 fcport->port_type = FCT_INITIATOR;
972 else if (le16_to_cpu(mbx->mb1) & BIT_1)
973 fcport->flags |= FCF_FCP2_DEVICE;
974 }
975 goto logio_done;
976 }
977
978 data[0] = le16_to_cpu(mbx->mb0);
979 switch (data[0]) {
980 case MBS_PORT_ID_USED:
981 data[1] = le16_to_cpu(mbx->mb1);
982 break;
983 case MBS_LOOP_ID_USED:
984 break;
985 default:
986 data[0] = MBS_COMMAND_ERROR;
987 break;
988 }
989
990 DEBUG2(printk(KERN_WARNING
991 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x "
992 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
993 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
994 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
995 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
996 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
997 le16_to_cpu(mbx->mb7)));
998
999 logio_done:
1000 lio->done(sp);
1001 }
1002
1003 static void
1004 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1005 sts_entry_t *pkt, int iocb_type)
1006 {
1007 const char func[] = "CT_IOCB";
1008 const char *type;
1009 struct qla_hw_data *ha = vha->hw;
1010 srb_t *sp;
1011 struct srb_ctx *sp_bsg;
1012 struct fc_bsg_job *bsg_job;
1013 uint16_t comp_status;
1014
1015 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1016 if (!sp)
1017 return;
1018
1019 sp_bsg = sp->ctx;
1020 bsg_job = sp_bsg->u.bsg_job;
1021
1022 type = NULL;
1023 switch (sp_bsg->type) {
1024 case SRB_CT_CMD:
1025 type = "ct pass-through";
1026 break;
1027 default:
1028 qla_printk(KERN_WARNING, ha,
1029 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1030 sp_bsg->type);
1031 return;
1032 }
1033
1034 comp_status = le16_to_cpu(pkt->comp_status);
1035
1036 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1037 * fc payload to the caller
1038 */
1039 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1040 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1041
1042 if (comp_status != CS_COMPLETE) {
1043 if (comp_status == CS_DATA_UNDERRUN) {
1044 bsg_job->reply->result = DID_OK << 16;
1045 bsg_job->reply->reply_payload_rcv_len =
1046 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1047
1048 DEBUG2(qla_printk(KERN_WARNING, ha,
1049 "scsi(%ld): CT pass-through-%s error "
1050 "comp_status-status=0x%x total_byte = 0x%x.\n",
1051 vha->host_no, type, comp_status,
1052 bsg_job->reply->reply_payload_rcv_len));
1053 } else {
1054 DEBUG2(qla_printk(KERN_WARNING, ha,
1055 "scsi(%ld): CT pass-through-%s error "
1056 "comp_status-status=0x%x.\n",
1057 vha->host_no, type, comp_status));
1058 bsg_job->reply->result = DID_ERROR << 16;
1059 bsg_job->reply->reply_payload_rcv_len = 0;
1060 }
1061 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1062 } else {
1063 bsg_job->reply->result = DID_OK << 16;
1064 bsg_job->reply->reply_payload_rcv_len =
1065 bsg_job->reply_payload.payload_len;
1066 bsg_job->reply_len = 0;
1067 }
1068
1069 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1070 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1071
1072 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1073 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1074
1075 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1076 kfree(sp->fcport);
1077
1078 kfree(sp->ctx);
1079 mempool_free(sp, ha->srb_mempool);
1080 bsg_job->job_done(bsg_job);
1081 }
1082
1083 static void
1084 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1085 struct sts_entry_24xx *pkt, int iocb_type)
1086 {
1087 const char func[] = "ELS_CT_IOCB";
1088 const char *type;
1089 struct qla_hw_data *ha = vha->hw;
1090 srb_t *sp;
1091 struct srb_ctx *sp_bsg;
1092 struct fc_bsg_job *bsg_job;
1093 uint16_t comp_status;
1094 uint32_t fw_status[3];
1095 uint8_t* fw_sts_ptr;
1096
1097 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1098 if (!sp)
1099 return;
1100 sp_bsg = sp->ctx;
1101 bsg_job = sp_bsg->u.bsg_job;
1102
1103 type = NULL;
1104 switch (sp_bsg->type) {
1105 case SRB_ELS_CMD_RPT:
1106 case SRB_ELS_CMD_HST:
1107 type = "els";
1108 break;
1109 case SRB_CT_CMD:
1110 type = "ct pass-through";
1111 break;
1112 default:
1113 qla_printk(KERN_WARNING, ha,
1114 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1115 sp_bsg->type);
1116 return;
1117 }
1118
1119 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1120 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1121 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1122
1123 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1124 * fc payload to the caller
1125 */
1126 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1127 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1128
1129 if (comp_status != CS_COMPLETE) {
1130 if (comp_status == CS_DATA_UNDERRUN) {
1131 bsg_job->reply->result = DID_OK << 16;
1132 bsg_job->reply->reply_payload_rcv_len =
1133 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1134
1135 DEBUG2(qla_printk(KERN_WARNING, ha,
1136 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1137 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1138 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2],
1139 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count)));
1140 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1141 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1142 }
1143 else {
1144 DEBUG2(qla_printk(KERN_WARNING, ha,
1145 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1146 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1147 vha->host_no, sp->handle, type, comp_status,
1148 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1),
1149 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2)));
1150 bsg_job->reply->result = DID_ERROR << 16;
1151 bsg_job->reply->reply_payload_rcv_len = 0;
1152 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1153 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1154 }
1155 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1156 }
1157 else {
1158 bsg_job->reply->result = DID_OK << 16;
1159 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1160 bsg_job->reply_len = 0;
1161 }
1162
1163 dma_unmap_sg(&ha->pdev->dev,
1164 bsg_job->request_payload.sg_list,
1165 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1166 dma_unmap_sg(&ha->pdev->dev,
1167 bsg_job->reply_payload.sg_list,
1168 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1169 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1170 (sp_bsg->type == SRB_CT_CMD))
1171 kfree(sp->fcport);
1172 kfree(sp->ctx);
1173 mempool_free(sp, ha->srb_mempool);
1174 bsg_job->job_done(bsg_job);
1175 }
1176
1177 static void
1178 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1179 struct logio_entry_24xx *logio)
1180 {
1181 const char func[] = "LOGIO-IOCB";
1182 const char *type;
1183 fc_port_t *fcport;
1184 srb_t *sp;
1185 struct srb_iocb *lio;
1186 struct srb_ctx *ctx;
1187 uint16_t *data;
1188 uint32_t iop[2];
1189
1190 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1191 if (!sp)
1192 return;
1193
1194 ctx = sp->ctx;
1195 lio = ctx->u.iocb_cmd;
1196 type = ctx->name;
1197 fcport = sp->fcport;
1198 data = lio->u.logio.data;
1199
1200 data[0] = MBS_COMMAND_ERROR;
1201 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1202 QLA_LOGIO_LOGIN_RETRIED : 0;
1203 if (logio->entry_status) {
1204 DEBUG2(printk(KERN_WARNING
1205 "scsi(%ld:%x): Async-%s error entry - "
1206 "portid=%02x%02x%02x entry-status=%x.\n",
1207 fcport->vha->host_no, sp->handle, type,
1208 fcport->d_id.b.domain, fcport->d_id.b.area,
1209 fcport->d_id.b.al_pa, logio->entry_status));
1210 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1211
1212 goto logio_done;
1213 }
1214
1215 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1216 DEBUG2(printk(KERN_DEBUG
1217 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
1218 "iop0=%x.\n",
1219 fcport->vha->host_no, sp->handle, type,
1220 fcport->d_id.b.domain, fcport->d_id.b.area,
1221 fcport->d_id.b.al_pa,
1222 le32_to_cpu(logio->io_parameter[0])));
1223
1224 data[0] = MBS_COMMAND_COMPLETE;
1225 if (ctx->type != SRB_LOGIN_CMD)
1226 goto logio_done;
1227
1228 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1229 if (iop[0] & BIT_4) {
1230 fcport->port_type = FCT_TARGET;
1231 if (iop[0] & BIT_8)
1232 fcport->flags |= FCF_FCP2_DEVICE;
1233 } else if (iop[0] & BIT_5)
1234 fcport->port_type = FCT_INITIATOR;
1235
1236 if (logio->io_parameter[7] || logio->io_parameter[8])
1237 fcport->supported_classes |= FC_COS_CLASS2;
1238 if (logio->io_parameter[9] || logio->io_parameter[10])
1239 fcport->supported_classes |= FC_COS_CLASS3;
1240
1241 goto logio_done;
1242 }
1243
1244 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1245 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1246 switch (iop[0]) {
1247 case LSC_SCODE_PORTID_USED:
1248 data[0] = MBS_PORT_ID_USED;
1249 data[1] = LSW(iop[1]);
1250 break;
1251 case LSC_SCODE_NPORT_USED:
1252 data[0] = MBS_LOOP_ID_USED;
1253 break;
1254 default:
1255 data[0] = MBS_COMMAND_ERROR;
1256 break;
1257 }
1258
1259 DEBUG2(printk(KERN_WARNING
1260 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x "
1261 "iop0=%x iop1=%x.\n",
1262 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
1263 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1264 le16_to_cpu(logio->comp_status),
1265 le32_to_cpu(logio->io_parameter[0]),
1266 le32_to_cpu(logio->io_parameter[1])));
1267
1268 logio_done:
1269 lio->done(sp);
1270 }
1271
1272 static void
1273 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1274 struct tsk_mgmt_entry *tsk)
1275 {
1276 const char func[] = "TMF-IOCB";
1277 const char *type;
1278 fc_port_t *fcport;
1279 srb_t *sp;
1280 struct srb_iocb *iocb;
1281 struct srb_ctx *ctx;
1282 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1283 int error = 1;
1284
1285 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1286 if (!sp)
1287 return;
1288
1289 ctx = sp->ctx;
1290 iocb = ctx->u.iocb_cmd;
1291 type = ctx->name;
1292 fcport = sp->fcport;
1293
1294 if (sts->entry_status) {
1295 DEBUG2(printk(KERN_WARNING
1296 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n",
1297 fcport->vha->host_no, sp->handle, type,
1298 sts->entry_status));
1299 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1300 DEBUG2(printk(KERN_WARNING
1301 "scsi(%ld:%x): Async-%s error - completion status(%x).\n",
1302 fcport->vha->host_no, sp->handle, type,
1303 sts->comp_status));
1304 } else if (!(le16_to_cpu(sts->scsi_status) &
1305 SS_RESPONSE_INFO_LEN_VALID)) {
1306 DEBUG2(printk(KERN_WARNING
1307 "scsi(%ld:%x): Async-%s error - no response info(%x).\n",
1308 fcport->vha->host_no, sp->handle, type,
1309 sts->scsi_status));
1310 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1311 DEBUG2(printk(KERN_WARNING
1312 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n",
1313 fcport->vha->host_no, sp->handle, type,
1314 sts->rsp_data_len));
1315 } else if (sts->data[3]) {
1316 DEBUG2(printk(KERN_WARNING
1317 "scsi(%ld:%x): Async-%s error - response(%x).\n",
1318 fcport->vha->host_no, sp->handle, type,
1319 sts->data[3]));
1320 } else {
1321 error = 0;
1322 }
1323
1324 if (error) {
1325 iocb->u.tmf.data = error;
1326 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts)));
1327 }
1328
1329 iocb->done(sp);
1330 }
1331
1332 /**
1333 * qla2x00_process_response_queue() - Process response queue entries.
1334 * @ha: SCSI driver HA context
1335 */
1336 void
1337 qla2x00_process_response_queue(struct rsp_que *rsp)
1338 {
1339 struct scsi_qla_host *vha;
1340 struct qla_hw_data *ha = rsp->hw;
1341 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1342 sts_entry_t *pkt;
1343 uint16_t handle_cnt;
1344 uint16_t cnt;
1345
1346 vha = pci_get_drvdata(ha->pdev);
1347
1348 if (!vha->flags.online)
1349 return;
1350
1351 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1352 pkt = (sts_entry_t *)rsp->ring_ptr;
1353
1354 rsp->ring_index++;
1355 if (rsp->ring_index == rsp->length) {
1356 rsp->ring_index = 0;
1357 rsp->ring_ptr = rsp->ring;
1358 } else {
1359 rsp->ring_ptr++;
1360 }
1361
1362 if (pkt->entry_status != 0) {
1363 DEBUG3(printk(KERN_INFO
1364 "scsi(%ld): Process error entry.\n", vha->host_no));
1365
1366 qla2x00_error_entry(vha, rsp, pkt);
1367 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1368 wmb();
1369 continue;
1370 }
1371
1372 switch (pkt->entry_type) {
1373 case STATUS_TYPE:
1374 qla2x00_status_entry(vha, rsp, pkt);
1375 break;
1376 case STATUS_TYPE_21:
1377 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1378 for (cnt = 0; cnt < handle_cnt; cnt++) {
1379 qla2x00_process_completed_request(vha, rsp->req,
1380 ((sts21_entry_t *)pkt)->handle[cnt]);
1381 }
1382 break;
1383 case STATUS_TYPE_22:
1384 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1385 for (cnt = 0; cnt < handle_cnt; cnt++) {
1386 qla2x00_process_completed_request(vha, rsp->req,
1387 ((sts22_entry_t *)pkt)->handle[cnt]);
1388 }
1389 break;
1390 case STATUS_CONT_TYPE:
1391 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1392 break;
1393 case MBX_IOCB_TYPE:
1394 qla2x00_mbx_iocb_entry(vha, rsp->req,
1395 (struct mbx_entry *)pkt);
1396 break;
1397 case CT_IOCB_TYPE:
1398 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1399 break;
1400 default:
1401 /* Type Not Supported. */
1402 DEBUG4(printk(KERN_WARNING
1403 "scsi(%ld): Received unknown response pkt type %x "
1404 "entry status=%x.\n",
1405 vha->host_no, pkt->entry_type, pkt->entry_status));
1406 break;
1407 }
1408 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1409 wmb();
1410 }
1411
1412 /* Adjust ring index */
1413 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1414 }
1415
1416 static inline void
1417
1418 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1419 uint32_t sense_len, struct rsp_que *rsp)
1420 {
1421 struct scsi_cmnd *cp = sp->cmd;
1422
1423 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1424 sense_len = SCSI_SENSE_BUFFERSIZE;
1425
1426 sp->request_sense_length = sense_len;
1427 sp->request_sense_ptr = cp->sense_buffer;
1428 if (sp->request_sense_length > par_sense_len)
1429 sense_len = par_sense_len;
1430
1431 memcpy(cp->sense_buffer, sense_data, sense_len);
1432
1433 sp->request_sense_ptr += sense_len;
1434 sp->request_sense_length -= sense_len;
1435 if (sp->request_sense_length != 0)
1436 rsp->status_srb = sp;
1437
1438 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1439 "cmd=%p\n", __func__, sp->fcport->vha->host_no,
1440 cp->device->channel, cp->device->id, cp->device->lun, cp));
1441 if (sense_len)
1442 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1443 }
1444
1445 struct scsi_dif_tuple {
1446 __be16 guard; /* Checksum */
1447 __be16 app_tag; /* APPL identifer */
1448 __be32 ref_tag; /* Target LBA or indirect LBA */
1449 };
1450
1451 /*
1452 * Checks the guard or meta-data for the type of error
1453 * detected by the HBA. In case of errors, we set the
1454 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1455 * to indicate to the kernel that the HBA detected error.
1456 */
1457 static inline void
1458 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1459 {
1460 struct scsi_cmnd *cmd = sp->cmd;
1461 struct scsi_dif_tuple *ep =
1462 (struct scsi_dif_tuple *)&sts24->data[20];
1463 struct scsi_dif_tuple *ap =
1464 (struct scsi_dif_tuple *)&sts24->data[12];
1465 uint32_t e_ref_tag, a_ref_tag;
1466 uint16_t e_app_tag, a_app_tag;
1467 uint16_t e_guard, a_guard;
1468
1469 e_ref_tag = be32_to_cpu(ep->ref_tag);
1470 a_ref_tag = be32_to_cpu(ap->ref_tag);
1471 e_app_tag = be16_to_cpu(ep->app_tag);
1472 a_app_tag = be16_to_cpu(ap->app_tag);
1473 e_guard = be16_to_cpu(ep->guard);
1474 a_guard = be16_to_cpu(ap->guard);
1475
1476 DEBUG18(printk(KERN_DEBUG
1477 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24));
1478
1479 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1480 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1481 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n",
1482 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1483 a_app_tag, e_app_tag, a_guard, e_guard));
1484
1485
1486 /* check guard */
1487 if (e_guard != a_guard) {
1488 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1489 0x10, 0x1);
1490 set_driver_byte(cmd, DRIVER_SENSE);
1491 set_host_byte(cmd, DID_ABORT);
1492 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1493 return;
1494 }
1495
1496 /* check appl tag */
1497 if (e_app_tag != a_app_tag) {
1498 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1499 0x10, 0x2);
1500 set_driver_byte(cmd, DRIVER_SENSE);
1501 set_host_byte(cmd, DID_ABORT);
1502 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1503 return;
1504 }
1505
1506 /* check ref tag */
1507 if (e_ref_tag != a_ref_tag) {
1508 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1509 0x10, 0x3);
1510 set_driver_byte(cmd, DRIVER_SENSE);
1511 set_host_byte(cmd, DID_ABORT);
1512 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1513 return;
1514 }
1515 }
1516
1517 /**
1518 * qla2x00_status_entry() - Process a Status IOCB entry.
1519 * @ha: SCSI driver HA context
1520 * @pkt: Entry pointer
1521 */
1522 static void
1523 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1524 {
1525 srb_t *sp;
1526 fc_port_t *fcport;
1527 struct scsi_cmnd *cp;
1528 sts_entry_t *sts;
1529 struct sts_entry_24xx *sts24;
1530 uint16_t comp_status;
1531 uint16_t scsi_status;
1532 uint16_t ox_id;
1533 uint8_t lscsi_status;
1534 int32_t resid;
1535 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1536 fw_resid_len;
1537 uint8_t *rsp_info, *sense_data;
1538 struct qla_hw_data *ha = vha->hw;
1539 uint32_t handle;
1540 uint16_t que;
1541 struct req_que *req;
1542 int logit = 1;
1543
1544 sts = (sts_entry_t *) pkt;
1545 sts24 = (struct sts_entry_24xx *) pkt;
1546 if (IS_FWI2_CAPABLE(ha)) {
1547 comp_status = le16_to_cpu(sts24->comp_status);
1548 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1549 } else {
1550 comp_status = le16_to_cpu(sts->comp_status);
1551 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1552 }
1553 handle = (uint32_t) LSW(sts->handle);
1554 que = MSW(sts->handle);
1555 req = ha->req_q_map[que];
1556
1557 /* Fast path completion. */
1558 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1559 qla2x00_process_completed_request(vha, req, handle);
1560
1561 return;
1562 }
1563
1564 /* Validate handle. */
1565 if (handle < MAX_OUTSTANDING_COMMANDS) {
1566 sp = req->outstanding_cmds[handle];
1567 req->outstanding_cmds[handle] = NULL;
1568 } else
1569 sp = NULL;
1570
1571 if (sp == NULL) {
1572 qla_printk(KERN_WARNING, ha,
1573 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no,
1574 sts->handle);
1575
1576 if (IS_QLA82XX(ha))
1577 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1578 else
1579 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1580 qla2xxx_wake_dpc(vha);
1581 return;
1582 }
1583 cp = sp->cmd;
1584 if (cp == NULL) {
1585 qla_printk(KERN_WARNING, ha,
1586 "scsi(%ld): Command already returned (0x%x/%p).\n",
1587 vha->host_no, sts->handle, sp);
1588
1589 return;
1590 }
1591
1592 lscsi_status = scsi_status & STATUS_MASK;
1593
1594 fcport = sp->fcport;
1595
1596 ox_id = 0;
1597 sense_len = par_sense_len = rsp_info_len = resid_len =
1598 fw_resid_len = 0;
1599 if (IS_FWI2_CAPABLE(ha)) {
1600 if (scsi_status & SS_SENSE_LEN_VALID)
1601 sense_len = le32_to_cpu(sts24->sense_len);
1602 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1603 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1604 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1605 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1606 if (comp_status == CS_DATA_UNDERRUN)
1607 fw_resid_len = le32_to_cpu(sts24->residual_len);
1608 rsp_info = sts24->data;
1609 sense_data = sts24->data;
1610 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1611 ox_id = le16_to_cpu(sts24->ox_id);
1612 par_sense_len = sizeof(sts24->data);
1613 } else {
1614 if (scsi_status & SS_SENSE_LEN_VALID)
1615 sense_len = le16_to_cpu(sts->req_sense_length);
1616 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1617 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1618 resid_len = le32_to_cpu(sts->residual_length);
1619 rsp_info = sts->rsp_info;
1620 sense_data = sts->req_sense_data;
1621 par_sense_len = sizeof(sts->req_sense_data);
1622 }
1623
1624 /* Check for any FCP transport errors. */
1625 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1626 /* Sense data lies beyond any FCP RESPONSE data. */
1627 if (IS_FWI2_CAPABLE(ha)) {
1628 sense_data += rsp_info_len;
1629 par_sense_len -= rsp_info_len;
1630 }
1631 if (rsp_info_len > 3 && rsp_info[3]) {
1632 DEBUG2(qla_printk(KERN_INFO, ha,
1633 "scsi(%ld:%d:%d): FCP I/O protocol failure "
1634 "(0x%x/0x%x).\n", vha->host_no, cp->device->id,
1635 cp->device->lun, rsp_info_len, rsp_info[3]));
1636
1637 cp->result = DID_BUS_BUSY << 16;
1638 goto out;
1639 }
1640 }
1641
1642 /* Check for overrun. */
1643 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1644 scsi_status & SS_RESIDUAL_OVER)
1645 comp_status = CS_DATA_OVERRUN;
1646
1647 /*
1648 * Based on Host and scsi status generate status code for Linux
1649 */
1650 switch (comp_status) {
1651 case CS_COMPLETE:
1652 case CS_QUEUE_FULL:
1653 if (scsi_status == 0) {
1654 cp->result = DID_OK << 16;
1655 break;
1656 }
1657 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1658 resid = resid_len;
1659 scsi_set_resid(cp, resid);
1660
1661 if (!lscsi_status &&
1662 ((unsigned)(scsi_bufflen(cp) - resid) <
1663 cp->underflow)) {
1664 qla_printk(KERN_INFO, ha,
1665 "scsi(%ld:%d:%d): Mid-layer underflow "
1666 "detected (0x%x of 0x%x bytes).\n",
1667 vha->host_no, cp->device->id,
1668 cp->device->lun, resid, scsi_bufflen(cp));
1669
1670 cp->result = DID_ERROR << 16;
1671 break;
1672 }
1673 }
1674 cp->result = DID_OK << 16 | lscsi_status;
1675
1676 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1677 DEBUG2(qla_printk(KERN_INFO, ha,
1678 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1679 vha->host_no, cp->device->id, cp->device->lun));
1680 break;
1681 }
1682 logit = 0;
1683 if (lscsi_status != SS_CHECK_CONDITION)
1684 break;
1685
1686 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1687 if (!(scsi_status & SS_SENSE_LEN_VALID))
1688 break;
1689
1690 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1691 rsp);
1692 break;
1693
1694 case CS_DATA_UNDERRUN:
1695 /* Use F/W calculated residual length. */
1696 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1697 scsi_set_resid(cp, resid);
1698 if (scsi_status & SS_RESIDUAL_UNDER) {
1699 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1700 DEBUG2(qla_printk(KERN_INFO, ha,
1701 "scsi(%ld:%d:%d) Dropped frame(s) detected "
1702 "(0x%x of 0x%x bytes).\n", vha->host_no,
1703 cp->device->id, cp->device->lun, resid,
1704 scsi_bufflen(cp)));
1705
1706 cp->result = DID_ERROR << 16 | lscsi_status;
1707 break;
1708 }
1709
1710 if (!lscsi_status &&
1711 ((unsigned)(scsi_bufflen(cp) - resid) <
1712 cp->underflow)) {
1713 qla_printk(KERN_INFO, ha,
1714 "scsi(%ld:%d:%d): Mid-layer underflow "
1715 "detected (0x%x of 0x%x bytes).\n",
1716 vha->host_no, cp->device->id,
1717 cp->device->lun, resid, scsi_bufflen(cp));
1718
1719 cp->result = DID_ERROR << 16;
1720 break;
1721 }
1722 } else {
1723 DEBUG2(qla_printk(KERN_INFO, ha,
1724 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x "
1725 "of 0x%x bytes).\n", vha->host_no, cp->device->id,
1726 cp->device->lun, resid, scsi_bufflen(cp)));
1727
1728 cp->result = DID_ERROR << 16 | lscsi_status;
1729 goto check_scsi_status;
1730 }
1731
1732 cp->result = DID_OK << 16 | lscsi_status;
1733 logit = 0;
1734
1735 check_scsi_status:
1736 /*
1737 * Check to see if SCSI Status is non zero. If so report SCSI
1738 * Status.
1739 */
1740 if (lscsi_status != 0) {
1741 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1742 DEBUG2(qla_printk(KERN_INFO, ha,
1743 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1744 vha->host_no, cp->device->id,
1745 cp->device->lun));
1746 logit = 1;
1747 break;
1748 }
1749 if (lscsi_status != SS_CHECK_CONDITION)
1750 break;
1751
1752 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1753 if (!(scsi_status & SS_SENSE_LEN_VALID))
1754 break;
1755
1756 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1757 sense_len, rsp);
1758 }
1759 break;
1760
1761 case CS_PORT_LOGGED_OUT:
1762 case CS_PORT_CONFIG_CHG:
1763 case CS_PORT_BUSY:
1764 case CS_INCOMPLETE:
1765 case CS_PORT_UNAVAILABLE:
1766 case CS_TIMEOUT:
1767 case CS_RESET:
1768
1769 /*
1770 * We are going to have the fc class block the rport
1771 * while we try to recover so instruct the mid layer
1772 * to requeue until the class decides how to handle this.
1773 */
1774 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1775
1776 if (comp_status == CS_TIMEOUT) {
1777 if (IS_FWI2_CAPABLE(ha))
1778 break;
1779 else if ((le16_to_cpu(sts->status_flags) &
1780 SF_LOGOUT_SENT) == 0)
1781 break;
1782 }
1783
1784 DEBUG2(qla_printk(KERN_INFO, ha,
1785 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n",
1786 vha->host_no, cp->device->id, cp->device->lun,
1787 atomic_read(&fcport->state)));
1788
1789 if (atomic_read(&fcport->state) == FCS_ONLINE)
1790 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1791 break;
1792
1793 case CS_ABORTED:
1794 cp->result = DID_RESET << 16;
1795 break;
1796
1797 case CS_DIF_ERROR:
1798 qla2x00_handle_dif_error(sp, sts24);
1799 break;
1800 default:
1801 cp->result = DID_ERROR << 16;
1802 break;
1803 }
1804
1805 out:
1806 if (logit)
1807 DEBUG2(qla_printk(KERN_INFO, ha,
1808 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) "
1809 "portid=%02x%02x%02x oxid=0x%x cdb=%02x%02x%02x len=0x%x "
1810 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no,
1811 cp->device->id, cp->device->lun, comp_status, scsi_status,
1812 cp->result, fcport->d_id.b.domain, fcport->d_id.b.area,
1813 fcport->d_id.b.al_pa, ox_id, cp->cmnd[0], cp->cmnd[1],
1814 cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, resid_len,
1815 fw_resid_len));
1816
1817 if (rsp->status_srb == NULL)
1818 qla2x00_sp_compl(ha, sp);
1819 }
1820
1821 /**
1822 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1823 * @ha: SCSI driver HA context
1824 * @pkt: Entry pointer
1825 *
1826 * Extended sense data.
1827 */
1828 static void
1829 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1830 {
1831 uint8_t sense_sz = 0;
1832 struct qla_hw_data *ha = rsp->hw;
1833 srb_t *sp = rsp->status_srb;
1834 struct scsi_cmnd *cp;
1835
1836 if (sp != NULL && sp->request_sense_length != 0) {
1837 cp = sp->cmd;
1838 if (cp == NULL) {
1839 DEBUG2(printk("%s(): Cmd already returned back to OS "
1840 "sp=%p.\n", __func__, sp));
1841 qla_printk(KERN_INFO, ha,
1842 "cmd is NULL: already returned to OS (sp=%p)\n",
1843 sp);
1844
1845 rsp->status_srb = NULL;
1846 return;
1847 }
1848
1849 if (sp->request_sense_length > sizeof(pkt->data)) {
1850 sense_sz = sizeof(pkt->data);
1851 } else {
1852 sense_sz = sp->request_sense_length;
1853 }
1854
1855 /* Move sense data. */
1856 if (IS_FWI2_CAPABLE(ha))
1857 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1858 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1859 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1860
1861 sp->request_sense_ptr += sense_sz;
1862 sp->request_sense_length -= sense_sz;
1863
1864 /* Place command on done queue. */
1865 if (sp->request_sense_length == 0) {
1866 rsp->status_srb = NULL;
1867 qla2x00_sp_compl(ha, sp);
1868 }
1869 }
1870 }
1871
1872 /**
1873 * qla2x00_error_entry() - Process an error entry.
1874 * @ha: SCSI driver HA context
1875 * @pkt: Entry pointer
1876 */
1877 static void
1878 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1879 {
1880 srb_t *sp;
1881 struct qla_hw_data *ha = vha->hw;
1882 uint32_t handle = LSW(pkt->handle);
1883 uint16_t que = MSW(pkt->handle);
1884 struct req_que *req = ha->req_q_map[que];
1885 #if defined(QL_DEBUG_LEVEL_2)
1886 if (pkt->entry_status & RF_INV_E_ORDER)
1887 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1888 else if (pkt->entry_status & RF_INV_E_COUNT)
1889 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1890 else if (pkt->entry_status & RF_INV_E_PARAM)
1891 qla_printk(KERN_ERR, ha,
1892 "%s: Invalid Entry Parameter\n", __func__);
1893 else if (pkt->entry_status & RF_INV_E_TYPE)
1894 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1895 else if (pkt->entry_status & RF_BUSY)
1896 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1897 else
1898 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1899 #endif
1900
1901 /* Validate handle. */
1902 if (handle < MAX_OUTSTANDING_COMMANDS)
1903 sp = req->outstanding_cmds[handle];
1904 else
1905 sp = NULL;
1906
1907 if (sp) {
1908 /* Free outstanding command slot. */
1909 req->outstanding_cmds[handle] = NULL;
1910
1911 /* Bad payload or header */
1912 if (pkt->entry_status &
1913 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1914 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1915 sp->cmd->result = DID_ERROR << 16;
1916 } else if (pkt->entry_status & RF_BUSY) {
1917 sp->cmd->result = DID_BUS_BUSY << 16;
1918 } else {
1919 sp->cmd->result = DID_ERROR << 16;
1920 }
1921 qla2x00_sp_compl(ha, sp);
1922
1923 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1924 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
1925 || pkt->entry_type == COMMAND_TYPE_6) {
1926 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1927 vha->host_no));
1928 qla_printk(KERN_WARNING, ha,
1929 "Error entry - invalid handle\n");
1930
1931 if (IS_QLA82XX(ha))
1932 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1933 else
1934 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1935 qla2xxx_wake_dpc(vha);
1936 }
1937 }
1938
1939 /**
1940 * qla24xx_mbx_completion() - Process mailbox command completions.
1941 * @ha: SCSI driver HA context
1942 * @mb0: Mailbox0 register
1943 */
1944 static void
1945 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1946 {
1947 uint16_t cnt;
1948 uint16_t __iomem *wptr;
1949 struct qla_hw_data *ha = vha->hw;
1950 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1951
1952 /* Load return mailbox registers. */
1953 ha->flags.mbox_int = 1;
1954 ha->mailbox_out[0] = mb0;
1955 wptr = (uint16_t __iomem *)&reg->mailbox1;
1956
1957 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1958 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1959 wptr++;
1960 }
1961
1962 if (ha->mcp) {
1963 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1964 __func__, vha->host_no, ha->mcp->mb[0]));
1965 } else {
1966 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1967 __func__, vha->host_no));
1968 }
1969 }
1970
1971 /**
1972 * qla24xx_process_response_queue() - Process response queue entries.
1973 * @ha: SCSI driver HA context
1974 */
1975 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1976 struct rsp_que *rsp)
1977 {
1978 struct sts_entry_24xx *pkt;
1979 struct qla_hw_data *ha = vha->hw;
1980
1981 if (!vha->flags.online)
1982 return;
1983
1984 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1985 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1986
1987 rsp->ring_index++;
1988 if (rsp->ring_index == rsp->length) {
1989 rsp->ring_index = 0;
1990 rsp->ring_ptr = rsp->ring;
1991 } else {
1992 rsp->ring_ptr++;
1993 }
1994
1995 if (pkt->entry_status != 0) {
1996 DEBUG3(printk(KERN_INFO
1997 "scsi(%ld): Process error entry.\n", vha->host_no));
1998
1999 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2000 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2001 wmb();
2002 continue;
2003 }
2004
2005 switch (pkt->entry_type) {
2006 case STATUS_TYPE:
2007 qla2x00_status_entry(vha, rsp, pkt);
2008 break;
2009 case STATUS_CONT_TYPE:
2010 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2011 break;
2012 case VP_RPT_ID_IOCB_TYPE:
2013 qla24xx_report_id_acquisition(vha,
2014 (struct vp_rpt_id_entry_24xx *)pkt);
2015 break;
2016 case LOGINOUT_PORT_IOCB_TYPE:
2017 qla24xx_logio_entry(vha, rsp->req,
2018 (struct logio_entry_24xx *)pkt);
2019 break;
2020 case TSK_MGMT_IOCB_TYPE:
2021 qla24xx_tm_iocb_entry(vha, rsp->req,
2022 (struct tsk_mgmt_entry *)pkt);
2023 break;
2024 case CT_IOCB_TYPE:
2025 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2026 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2027 break;
2028 case ELS_IOCB_TYPE:
2029 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2030 break;
2031 default:
2032 /* Type Not Supported. */
2033 DEBUG4(printk(KERN_WARNING
2034 "scsi(%ld): Received unknown response pkt type %x "
2035 "entry status=%x.\n",
2036 vha->host_no, pkt->entry_type, pkt->entry_status));
2037 break;
2038 }
2039 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2040 wmb();
2041 }
2042
2043 /* Adjust ring index */
2044 if (IS_QLA82XX(ha)) {
2045 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2046 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2047 } else
2048 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2049 }
2050
2051 static void
2052 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2053 {
2054 int rval;
2055 uint32_t cnt;
2056 struct qla_hw_data *ha = vha->hw;
2057 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2058
2059 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2060 return;
2061
2062 rval = QLA_SUCCESS;
2063 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2064 RD_REG_DWORD(&reg->iobase_addr);
2065 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2066 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2067 rval == QLA_SUCCESS; cnt--) {
2068 if (cnt) {
2069 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2070 udelay(10);
2071 } else
2072 rval = QLA_FUNCTION_TIMEOUT;
2073 }
2074 if (rval == QLA_SUCCESS)
2075 goto next_test;
2076
2077 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2078 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2079 rval == QLA_SUCCESS; cnt--) {
2080 if (cnt) {
2081 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2082 udelay(10);
2083 } else
2084 rval = QLA_FUNCTION_TIMEOUT;
2085 }
2086 if (rval != QLA_SUCCESS)
2087 goto done;
2088
2089 next_test:
2090 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2091 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
2092
2093 done:
2094 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2095 RD_REG_DWORD(&reg->iobase_window);
2096 }
2097
2098 /**
2099 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2100 * @irq:
2101 * @dev_id: SCSI driver HA context
2102 *
2103 * Called by system whenever the host adapter generates an interrupt.
2104 *
2105 * Returns handled flag.
2106 */
2107 irqreturn_t
2108 qla24xx_intr_handler(int irq, void *dev_id)
2109 {
2110 scsi_qla_host_t *vha;
2111 struct qla_hw_data *ha;
2112 struct device_reg_24xx __iomem *reg;
2113 int status;
2114 unsigned long iter;
2115 uint32_t stat;
2116 uint32_t hccr;
2117 uint16_t mb[4];
2118 struct rsp_que *rsp;
2119 unsigned long flags;
2120
2121 rsp = (struct rsp_que *) dev_id;
2122 if (!rsp) {
2123 printk(KERN_INFO
2124 "%s(): NULL response queue pointer\n", __func__);
2125 return IRQ_NONE;
2126 }
2127
2128 ha = rsp->hw;
2129 reg = &ha->iobase->isp24;
2130 status = 0;
2131
2132 if (unlikely(pci_channel_offline(ha->pdev)))
2133 return IRQ_HANDLED;
2134
2135 spin_lock_irqsave(&ha->hardware_lock, flags);
2136 vha = pci_get_drvdata(ha->pdev);
2137 for (iter = 50; iter--; ) {
2138 stat = RD_REG_DWORD(&reg->host_status);
2139 if (stat & HSRX_RISC_PAUSED) {
2140 if (unlikely(pci_channel_offline(ha->pdev)))
2141 break;
2142
2143 hccr = RD_REG_DWORD(&reg->hccr);
2144
2145 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2146 "Dumping firmware!\n", hccr);
2147
2148 qla2xxx_check_risc_status(vha);
2149
2150 ha->isp_ops->fw_dump(vha, 1);
2151 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2152 break;
2153 } else if ((stat & HSRX_RISC_INT) == 0)
2154 break;
2155
2156 switch (stat & 0xff) {
2157 case 0x1:
2158 case 0x2:
2159 case 0x10:
2160 case 0x11:
2161 qla24xx_mbx_completion(vha, MSW(stat));
2162 status |= MBX_INTERRUPT;
2163
2164 break;
2165 case 0x12:
2166 mb[0] = MSW(stat);
2167 mb[1] = RD_REG_WORD(&reg->mailbox1);
2168 mb[2] = RD_REG_WORD(&reg->mailbox2);
2169 mb[3] = RD_REG_WORD(&reg->mailbox3);
2170 qla2x00_async_event(vha, rsp, mb);
2171 break;
2172 case 0x13:
2173 case 0x14:
2174 qla24xx_process_response_queue(vha, rsp);
2175 break;
2176 default:
2177 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2178 "(%d).\n",
2179 vha->host_no, stat & 0xff));
2180 break;
2181 }
2182 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2183 RD_REG_DWORD_RELAXED(&reg->hccr);
2184 }
2185 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2186
2187 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2188 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2189 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2190 complete(&ha->mbx_intr_comp);
2191 }
2192
2193 return IRQ_HANDLED;
2194 }
2195
2196 static irqreturn_t
2197 qla24xx_msix_rsp_q(int irq, void *dev_id)
2198 {
2199 struct qla_hw_data *ha;
2200 struct rsp_que *rsp;
2201 struct device_reg_24xx __iomem *reg;
2202 struct scsi_qla_host *vha;
2203 unsigned long flags;
2204
2205 rsp = (struct rsp_que *) dev_id;
2206 if (!rsp) {
2207 printk(KERN_INFO
2208 "%s(): NULL response queue pointer\n", __func__);
2209 return IRQ_NONE;
2210 }
2211 ha = rsp->hw;
2212 reg = &ha->iobase->isp24;
2213
2214 spin_lock_irqsave(&ha->hardware_lock, flags);
2215
2216 vha = pci_get_drvdata(ha->pdev);
2217 qla24xx_process_response_queue(vha, rsp);
2218 if (!ha->flags.disable_msix_handshake) {
2219 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2220 RD_REG_DWORD_RELAXED(&reg->hccr);
2221 }
2222 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2223
2224 return IRQ_HANDLED;
2225 }
2226
2227 static irqreturn_t
2228 qla25xx_msix_rsp_q(int irq, void *dev_id)
2229 {
2230 struct qla_hw_data *ha;
2231 struct rsp_que *rsp;
2232 struct device_reg_24xx __iomem *reg;
2233 unsigned long flags;
2234
2235 rsp = (struct rsp_que *) dev_id;
2236 if (!rsp) {
2237 printk(KERN_INFO
2238 "%s(): NULL response queue pointer\n", __func__);
2239 return IRQ_NONE;
2240 }
2241 ha = rsp->hw;
2242
2243 /* Clear the interrupt, if enabled, for this response queue */
2244 if (rsp->options & ~BIT_6) {
2245 reg = &ha->iobase->isp24;
2246 spin_lock_irqsave(&ha->hardware_lock, flags);
2247 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2248 RD_REG_DWORD_RELAXED(&reg->hccr);
2249 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2250 }
2251 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2252
2253 return IRQ_HANDLED;
2254 }
2255
2256 static irqreturn_t
2257 qla24xx_msix_default(int irq, void *dev_id)
2258 {
2259 scsi_qla_host_t *vha;
2260 struct qla_hw_data *ha;
2261 struct rsp_que *rsp;
2262 struct device_reg_24xx __iomem *reg;
2263 int status;
2264 uint32_t stat;
2265 uint32_t hccr;
2266 uint16_t mb[4];
2267 unsigned long flags;
2268
2269 rsp = (struct rsp_que *) dev_id;
2270 if (!rsp) {
2271 DEBUG(printk(
2272 "%s(): NULL response queue pointer\n", __func__));
2273 return IRQ_NONE;
2274 }
2275 ha = rsp->hw;
2276 reg = &ha->iobase->isp24;
2277 status = 0;
2278
2279 spin_lock_irqsave(&ha->hardware_lock, flags);
2280 vha = pci_get_drvdata(ha->pdev);
2281 do {
2282 stat = RD_REG_DWORD(&reg->host_status);
2283 if (stat & HSRX_RISC_PAUSED) {
2284 if (unlikely(pci_channel_offline(ha->pdev)))
2285 break;
2286
2287 hccr = RD_REG_DWORD(&reg->hccr);
2288
2289 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2290 "Dumping firmware!\n", hccr);
2291
2292 qla2xxx_check_risc_status(vha);
2293
2294 ha->isp_ops->fw_dump(vha, 1);
2295 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2296 break;
2297 } else if ((stat & HSRX_RISC_INT) == 0)
2298 break;
2299
2300 switch (stat & 0xff) {
2301 case 0x1:
2302 case 0x2:
2303 case 0x10:
2304 case 0x11:
2305 qla24xx_mbx_completion(vha, MSW(stat));
2306 status |= MBX_INTERRUPT;
2307
2308 break;
2309 case 0x12:
2310 mb[0] = MSW(stat);
2311 mb[1] = RD_REG_WORD(&reg->mailbox1);
2312 mb[2] = RD_REG_WORD(&reg->mailbox2);
2313 mb[3] = RD_REG_WORD(&reg->mailbox3);
2314 qla2x00_async_event(vha, rsp, mb);
2315 break;
2316 case 0x13:
2317 case 0x14:
2318 qla24xx_process_response_queue(vha, rsp);
2319 break;
2320 default:
2321 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2322 "(%d).\n",
2323 vha->host_no, stat & 0xff));
2324 break;
2325 }
2326 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2327 } while (0);
2328 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2329
2330 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2331 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2332 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2333 complete(&ha->mbx_intr_comp);
2334 }
2335 return IRQ_HANDLED;
2336 }
2337
2338 /* Interrupt handling helpers. */
2339
2340 struct qla_init_msix_entry {
2341 const char *name;
2342 irq_handler_t handler;
2343 };
2344
2345 static struct qla_init_msix_entry msix_entries[3] = {
2346 { "qla2xxx (default)", qla24xx_msix_default },
2347 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2348 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2349 };
2350
2351 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2352 { "qla2xxx (default)", qla82xx_msix_default },
2353 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2354 };
2355
2356 static void
2357 qla24xx_disable_msix(struct qla_hw_data *ha)
2358 {
2359 int i;
2360 struct qla_msix_entry *qentry;
2361
2362 for (i = 0; i < ha->msix_count; i++) {
2363 qentry = &ha->msix_entries[i];
2364 if (qentry->have_irq)
2365 free_irq(qentry->vector, qentry->rsp);
2366 }
2367 pci_disable_msix(ha->pdev);
2368 kfree(ha->msix_entries);
2369 ha->msix_entries = NULL;
2370 ha->flags.msix_enabled = 0;
2371 }
2372
2373 static int
2374 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2375 {
2376 #define MIN_MSIX_COUNT 2
2377 int i, ret;
2378 struct msix_entry *entries;
2379 struct qla_msix_entry *qentry;
2380
2381 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2382 GFP_KERNEL);
2383 if (!entries)
2384 return -ENOMEM;
2385
2386 for (i = 0; i < ha->msix_count; i++)
2387 entries[i].entry = i;
2388
2389 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2390 if (ret) {
2391 if (ret < MIN_MSIX_COUNT)
2392 goto msix_failed;
2393
2394 qla_printk(KERN_WARNING, ha,
2395 "MSI-X: Failed to enable support -- %d/%d\n"
2396 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2397 ha->msix_count = ret;
2398 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2399 if (ret) {
2400 msix_failed:
2401 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2402 " support, giving up -- %d/%d\n",
2403 ha->msix_count, ret);
2404 goto msix_out;
2405 }
2406 ha->max_rsp_queues = ha->msix_count - 1;
2407 }
2408 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2409 ha->msix_count, GFP_KERNEL);
2410 if (!ha->msix_entries) {
2411 ret = -ENOMEM;
2412 goto msix_out;
2413 }
2414 ha->flags.msix_enabled = 1;
2415
2416 for (i = 0; i < ha->msix_count; i++) {
2417 qentry = &ha->msix_entries[i];
2418 qentry->vector = entries[i].vector;
2419 qentry->entry = entries[i].entry;
2420 qentry->have_irq = 0;
2421 qentry->rsp = NULL;
2422 }
2423
2424 /* Enable MSI-X vectors for the base queue */
2425 for (i = 0; i < 2; i++) {
2426 qentry = &ha->msix_entries[i];
2427 if (IS_QLA82XX(ha)) {
2428 ret = request_irq(qentry->vector,
2429 qla82xx_msix_entries[i].handler,
2430 0, qla82xx_msix_entries[i].name, rsp);
2431 } else {
2432 ret = request_irq(qentry->vector,
2433 msix_entries[i].handler,
2434 0, msix_entries[i].name, rsp);
2435 }
2436 if (ret) {
2437 qla_printk(KERN_WARNING, ha,
2438 "MSI-X: Unable to register handler -- %x/%d.\n",
2439 qentry->vector, ret);
2440 qla24xx_disable_msix(ha);
2441 ha->mqenable = 0;
2442 goto msix_out;
2443 }
2444 qentry->have_irq = 1;
2445 qentry->rsp = rsp;
2446 rsp->msix = qentry;
2447 }
2448
2449 /* Enable MSI-X vector for response queue update for queue 0 */
2450 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2451 ha->mqenable = 1;
2452
2453 msix_out:
2454 kfree(entries);
2455 return ret;
2456 }
2457
2458 int
2459 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2460 {
2461 int ret;
2462 device_reg_t __iomem *reg = ha->iobase;
2463
2464 /* If possible, enable MSI-X. */
2465 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2466 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2467 goto skip_msi;
2468
2469 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2470 (ha->pdev->subsystem_device == 0x7040 ||
2471 ha->pdev->subsystem_device == 0x7041 ||
2472 ha->pdev->subsystem_device == 0x1705)) {
2473 DEBUG2(qla_printk(KERN_WARNING, ha,
2474 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n",
2475 ha->pdev->subsystem_vendor,
2476 ha->pdev->subsystem_device));
2477 goto skip_msi;
2478 }
2479
2480 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2481 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2482 DEBUG2(qla_printk(KERN_WARNING, ha,
2483 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2484 ha->pdev->revision, ha->fw_attributes));
2485 goto skip_msix;
2486 }
2487
2488 ret = qla24xx_enable_msix(ha, rsp);
2489 if (!ret) {
2490 DEBUG2(qla_printk(KERN_INFO, ha,
2491 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2492 ha->fw_attributes));
2493 goto clear_risc_ints;
2494 }
2495 qla_printk(KERN_WARNING, ha,
2496 "MSI-X: Falling back-to MSI mode -- %d.\n", ret);
2497 skip_msix:
2498
2499 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2500 !IS_QLA8001(ha))
2501 goto skip_msi;
2502
2503 ret = pci_enable_msi(ha->pdev);
2504 if (!ret) {
2505 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2506 ha->flags.msi_enabled = 1;
2507 } else
2508 qla_printk(KERN_WARNING, ha,
2509 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2510 skip_msi:
2511
2512 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2513 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2514 QLA2XXX_DRIVER_NAME, rsp);
2515 if (ret) {
2516 qla_printk(KERN_WARNING, ha,
2517 "Failed to reserve interrupt %d already in use.\n",
2518 ha->pdev->irq);
2519 goto fail;
2520 }
2521
2522 clear_risc_ints:
2523
2524 /*
2525 * FIXME: Noted that 8014s were being dropped during NK testing.
2526 * Timing deltas during MSI-X/INTa transitions?
2527 */
2528 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2529 goto fail;
2530 spin_lock_irq(&ha->hardware_lock);
2531 if (IS_FWI2_CAPABLE(ha)) {
2532 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2533 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2534 } else {
2535 WRT_REG_WORD(&reg->isp.semaphore, 0);
2536 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2537 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2538 }
2539 spin_unlock_irq(&ha->hardware_lock);
2540
2541 fail:
2542 return ret;
2543 }
2544
2545 void
2546 qla2x00_free_irqs(scsi_qla_host_t *vha)
2547 {
2548 struct qla_hw_data *ha = vha->hw;
2549 struct rsp_que *rsp = ha->rsp_q_map[0];
2550
2551 if (ha->flags.msix_enabled)
2552 qla24xx_disable_msix(ha);
2553 else if (ha->flags.msi_enabled) {
2554 free_irq(ha->pdev->irq, rsp);
2555 pci_disable_msi(ha->pdev);
2556 } else
2557 free_irq(ha->pdev->irq, rsp);
2558 }
2559
2560
2561 int qla25xx_request_irq(struct rsp_que *rsp)
2562 {
2563 struct qla_hw_data *ha = rsp->hw;
2564 struct qla_init_msix_entry *intr = &msix_entries[2];
2565 struct qla_msix_entry *msix = rsp->msix;
2566 int ret;
2567
2568 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2569 if (ret) {
2570 qla_printk(KERN_WARNING, ha,
2571 "MSI-X: Unable to register handler -- %x/%d.\n",
2572 msix->vector, ret);
2573 return ret;
2574 }
2575 msix->have_irq = 1;
2576 msix->rsp = rsp;
2577 return ret;
2578 }
x86 "subsystem" repository