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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / scsi / qla2xxx / qla_isr.c
blob5d4024d2aeeed9109167ffedc5bc5a5b4f94ed5e
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2010 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 uint32_t rscn_entry, host_pid;
325 uint8_t rscn_queue_index;
326 unsigned long flags;
327
328 /* Setup to process RIO completion. */
329 handle_cnt = 0;
330 if (IS_QLA8XXX_TYPE(ha))
331 goto skip_rio;
332 switch (mb[0]) {
333 case MBA_SCSI_COMPLETION:
334 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
335 handle_cnt = 1;
336 break;
337 case MBA_CMPLT_1_16BIT:
338 handles[0] = mb[1];
339 handle_cnt = 1;
340 mb[0] = MBA_SCSI_COMPLETION;
341 break;
342 case MBA_CMPLT_2_16BIT:
343 handles[0] = mb[1];
344 handles[1] = mb[2];
345 handle_cnt = 2;
346 mb[0] = MBA_SCSI_COMPLETION;
347 break;
348 case MBA_CMPLT_3_16BIT:
349 handles[0] = mb[1];
350 handles[1] = mb[2];
351 handles[2] = mb[3];
352 handle_cnt = 3;
353 mb[0] = MBA_SCSI_COMPLETION;
354 break;
355 case MBA_CMPLT_4_16BIT:
356 handles[0] = mb[1];
357 handles[1] = mb[2];
358 handles[2] = mb[3];
359 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
360 handle_cnt = 4;
361 mb[0] = MBA_SCSI_COMPLETION;
362 break;
363 case MBA_CMPLT_5_16BIT:
364 handles[0] = mb[1];
365 handles[1] = mb[2];
366 handles[2] = mb[3];
367 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
368 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
369 handle_cnt = 5;
370 mb[0] = MBA_SCSI_COMPLETION;
371 break;
372 case MBA_CMPLT_2_32BIT:
373 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
374 handles[1] = le32_to_cpu(
375 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
376 RD_MAILBOX_REG(ha, reg, 6));
377 handle_cnt = 2;
378 mb[0] = MBA_SCSI_COMPLETION;
379 break;
380 default:
381 break;
382 }
383 skip_rio:
384 switch (mb[0]) {
385 case MBA_SCSI_COMPLETION: /* Fast Post */
386 if (!vha->flags.online)
387 break;
388
389 for (cnt = 0; cnt < handle_cnt; cnt++)
390 qla2x00_process_completed_request(vha, rsp->req,
391 handles[cnt]);
392 break;
393
394 case MBA_RESET: /* Reset */
395 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n",
396 vha->host_no));
397
398 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
399 break;
400
401 case MBA_SYSTEM_ERR: /* System Error */
402 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox7) : 0;
403 qla_printk(KERN_INFO, ha,
404 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
405 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
406
407 ha->isp_ops->fw_dump(vha, 1);
408
409 if (IS_FWI2_CAPABLE(ha)) {
410 if (mb[1] == 0 && mb[2] == 0) {
411 qla_printk(KERN_ERR, ha,
412 "Unrecoverable Hardware Error: adapter "
413 "marked OFFLINE!\n");
414 vha->flags.online = 0;
415 } else
416 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
417 } else if (mb[1] == 0) {
418 qla_printk(KERN_INFO, ha,
419 "Unrecoverable Hardware Error: adapter marked "
420 "OFFLINE!\n");
421 vha->flags.online = 0;
422 } else
423 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
424 break;
425
426 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
427 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n",
428 vha->host_no, mb[1]));
429 qla_printk(KERN_WARNING, ha,
430 "ISP Request Transfer Error (%x).\n", mb[1]);
431
432 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
433 break;
434
435 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
436 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
437 vha->host_no));
438 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
439
440 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
441 break;
442
443 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
444 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
445 vha->host_no));
446 break;
447
448 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
449 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no,
450 mb[1]));
451 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
452
453 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
454 atomic_set(&vha->loop_state, LOOP_DOWN);
455 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
456 qla2x00_mark_all_devices_lost(vha, 1);
457 }
458
459 if (vha->vp_idx) {
460 atomic_set(&vha->vp_state, VP_FAILED);
461 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
462 }
463
464 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
465 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
466
467 vha->flags.management_server_logged_in = 0;
468 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
469 break;
470
471 case MBA_LOOP_UP: /* Loop Up Event */
472 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
473 link_speed = link_speeds[0];
474 ha->link_data_rate = PORT_SPEED_1GB;
475 } else {
476 link_speed = link_speeds[LS_UNKNOWN];
477 if (mb[1] < 5)
478 link_speed = link_speeds[mb[1]];
479 else if (mb[1] == 0x13)
480 link_speed = link_speeds[5];
481 ha->link_data_rate = mb[1];
482 }
483
484 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
485 vha->host_no, link_speed));
486 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
487 link_speed);
488
489 vha->flags.management_server_logged_in = 0;
490 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
491 break;
492
493 case MBA_LOOP_DOWN: /* Loop Down Event */
494 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox4) : 0;
495 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
496 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3],
497 mbx));
498 qla_printk(KERN_INFO, ha,
499 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3],
500 mbx);
501
502 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
503 atomic_set(&vha->loop_state, LOOP_DOWN);
504 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
505 vha->device_flags |= DFLG_NO_CABLE;
506 qla2x00_mark_all_devices_lost(vha, 1);
507 }
508
509 if (vha->vp_idx) {
510 atomic_set(&vha->vp_state, VP_FAILED);
511 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
512 }
513
514 vha->flags.management_server_logged_in = 0;
515 ha->link_data_rate = PORT_SPEED_UNKNOWN;
516 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
517 break;
518
519 case MBA_LIP_RESET: /* LIP reset occurred */
520 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
521 vha->host_no, mb[1]));
522 qla_printk(KERN_INFO, ha,
523 "LIP reset occurred (%x).\n", mb[1]);
524
525 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
526 atomic_set(&vha->loop_state, LOOP_DOWN);
527 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
528 qla2x00_mark_all_devices_lost(vha, 1);
529 }
530
531 if (vha->vp_idx) {
532 atomic_set(&vha->vp_state, VP_FAILED);
533 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
534 }
535
536 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
537
538 ha->operating_mode = LOOP;
539 vha->flags.management_server_logged_in = 0;
540 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
541 break;
542
543 /* case MBA_DCBX_COMPLETE: */
544 case MBA_POINT_TO_POINT: /* Point-to-Point */
545 if (IS_QLA2100(ha))
546 break;
547
548 if (IS_QLA8XXX_TYPE(ha)) {
549 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x "
550 "%04x\n", vha->host_no, mb[1], mb[2], mb[3]));
551 if (ha->notify_dcbx_comp)
552 complete(&ha->dcbx_comp);
553
554 } else
555 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE "
556 "received.\n", vha->host_no));
557
558 /*
559 * Until there's a transition from loop down to loop up, treat
560 * this as loop down only.
561 */
562 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
563 atomic_set(&vha->loop_state, LOOP_DOWN);
564 if (!atomic_read(&vha->loop_down_timer))
565 atomic_set(&vha->loop_down_timer,
566 LOOP_DOWN_TIME);
567 qla2x00_mark_all_devices_lost(vha, 1);
568 }
569
570 if (vha->vp_idx) {
571 atomic_set(&vha->vp_state, VP_FAILED);
572 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
573 }
574
575 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
576 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
577
578 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
579 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
580
581 ha->flags.gpsc_supported = 1;
582 vha->flags.management_server_logged_in = 0;
583 break;
584
585 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
586 if (IS_QLA2100(ha))
587 break;
588
589 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
590 "received.\n",
591 vha->host_no));
592 qla_printk(KERN_INFO, ha,
593 "Configuration change detected: value=%x.\n", mb[1]);
594
595 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
596 atomic_set(&vha->loop_state, LOOP_DOWN);
597 if (!atomic_read(&vha->loop_down_timer))
598 atomic_set(&vha->loop_down_timer,
599 LOOP_DOWN_TIME);
600 qla2x00_mark_all_devices_lost(vha, 1);
601 }
602
603 if (vha->vp_idx) {
604 atomic_set(&vha->vp_state, VP_FAILED);
605 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
606 }
607
608 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
609 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
610 break;
611
612 case MBA_PORT_UPDATE: /* Port database update */
613 /*
614 * Handle only global and vn-port update events
615 *
616 * Relevant inputs:
617 * mb[1] = N_Port handle of changed port
618 * OR 0xffff for global event
619 * mb[2] = New login state
620 * 7 = Port logged out
621 * mb[3] = LSB is vp_idx, 0xff = all vps
622 *
623 * Skip processing if:
624 * Event is global, vp_idx is NOT all vps,
625 * vp_idx does not match
626 * Event is not global, vp_idx does not match
627 */
628 if (IS_QLA2XXX_MIDTYPE(ha) &&
629 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
630 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
631 break;
632
633 /* Global event -- port logout or port unavailable. */
634 if (mb[1] == 0xffff && mb[2] == 0x7) {
635 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
636 vha->host_no));
637 DEBUG(printk(KERN_INFO
638 "scsi(%ld): Port unavailable %04x %04x %04x.\n",
639 vha->host_no, mb[1], mb[2], mb[3]));
640
641 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
642 atomic_set(&vha->loop_state, LOOP_DOWN);
643 atomic_set(&vha->loop_down_timer,
644 LOOP_DOWN_TIME);
645 vha->device_flags |= DFLG_NO_CABLE;
646 qla2x00_mark_all_devices_lost(vha, 1);
647 }
648
649 if (vha->vp_idx) {
650 atomic_set(&vha->vp_state, VP_FAILED);
651 fc_vport_set_state(vha->fc_vport,
652 FC_VPORT_FAILED);
653 qla2x00_mark_all_devices_lost(vha, 1);
654 }
655
656 vha->flags.management_server_logged_in = 0;
657 ha->link_data_rate = PORT_SPEED_UNKNOWN;
658 break;
659 }
660
661 /*
662 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
663 * event etc. earlier indicating loop is down) then process
664 * it. Otherwise ignore it and Wait for RSCN to come in.
665 */
666 atomic_set(&vha->loop_down_timer, 0);
667 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
668 atomic_read(&vha->loop_state) != LOOP_DEAD) {
669 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
670 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1],
671 mb[2], mb[3]));
672 break;
673 }
674
675 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
676 vha->host_no));
677 DEBUG(printk(KERN_INFO
678 "scsi(%ld): Port database changed %04x %04x %04x.\n",
679 vha->host_no, mb[1], mb[2], mb[3]));
680
681 /*
682 * Mark all devices as missing so we will login again.
683 */
684 atomic_set(&vha->loop_state, LOOP_UP);
685
686 qla2x00_mark_all_devices_lost(vha, 1);
687
688 vha->flags.rscn_queue_overflow = 1;
689
690 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
691 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
692 break;
693
694 case MBA_RSCN_UPDATE: /* State Change Registration */
695 /* Check if the Vport has issued a SCR */
696 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
697 break;
698 /* Only handle SCNs for our Vport index. */
699 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
700 break;
701
702 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
703 vha->host_no));
704 DEBUG(printk(KERN_INFO
705 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
706 vha->host_no, mb[1], mb[2], mb[3]));
707
708 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
709 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
710 | vha->d_id.b.al_pa;
711 if (rscn_entry == host_pid) {
712 DEBUG(printk(KERN_INFO
713 "scsi(%ld): Ignoring RSCN update to local host "
714 "port ID (%06x)\n",
715 vha->host_no, host_pid));
716 break;
717 }
718
719 /* Ignore reserved bits from RSCN-payload. */
720 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
721 rscn_queue_index = vha->rscn_in_ptr + 1;
722 if (rscn_queue_index == MAX_RSCN_COUNT)
723 rscn_queue_index = 0;
724 if (rscn_queue_index != vha->rscn_out_ptr) {
725 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
726 vha->rscn_in_ptr = rscn_queue_index;
727 } else {
728 vha->flags.rscn_queue_overflow = 1;
729 }
730
731 atomic_set(&vha->loop_state, LOOP_UPDATE);
732 atomic_set(&vha->loop_down_timer, 0);
733 vha->flags.management_server_logged_in = 0;
734
735 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
736 set_bit(RSCN_UPDATE, &vha->dpc_flags);
737 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
738 break;
739
740 /* case MBA_RIO_RESPONSE: */
741 case MBA_ZIO_RESPONSE:
742 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
743 vha->host_no));
744
745 if (IS_FWI2_CAPABLE(ha))
746 qla24xx_process_response_queue(vha, rsp);
747 else
748 qla2x00_process_response_queue(rsp);
749 break;
750
751 case MBA_DISCARD_RND_FRAME:
752 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
753 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
754 break;
755
756 case MBA_TRACE_NOTIFICATION:
757 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
758 vha->host_no, mb[1], mb[2]));
759 break;
760
761 case MBA_ISP84XX_ALERT:
762 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
763 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
764
765 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
766 switch (mb[1]) {
767 case A84_PANIC_RECOVERY:
768 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
769 "%04x %04x\n", mb[2], mb[3]);
770 break;
771 case A84_OP_LOGIN_COMPLETE:
772 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
773 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
774 "firmware version %x\n", ha->cs84xx->op_fw_version));
775 break;
776 case A84_DIAG_LOGIN_COMPLETE:
777 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
778 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
779 "diagnostic firmware version %x\n",
780 ha->cs84xx->diag_fw_version));
781 break;
782 case A84_GOLD_LOGIN_COMPLETE:
783 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
784 ha->cs84xx->fw_update = 1;
785 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
786 "firmware version %x\n",
787 ha->cs84xx->gold_fw_version));
788 break;
789 default:
790 qla_printk(KERN_ERR, ha,
791 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
792 mb[1], mb[2], mb[3]);
793 }
794 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
795 break;
796 case MBA_DCBX_START:
797 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n",
798 vha->host_no, mb[1], mb[2], mb[3]));
799 break;
800 case MBA_DCBX_PARAM_UPDATE:
801 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- "
802 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
803 break;
804 case MBA_FCF_CONF_ERR:
805 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- "
806 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
807 break;
808 case MBA_IDC_COMPLETE:
809 case MBA_IDC_NOTIFY:
810 case MBA_IDC_TIME_EXT:
811 qla81xx_idc_event(vha, mb[0], mb[1]);
812 break;
813 }
814
815 if (!vha->vp_idx && ha->num_vhosts)
816 qla2x00_alert_all_vps(rsp, mb);
817 }
818
819 /**
820 * qla2x00_process_completed_request() - Process a Fast Post response.
821 * @ha: SCSI driver HA context
822 * @index: SRB index
823 */
824 static void
825 qla2x00_process_completed_request(struct scsi_qla_host *vha,
826 struct req_que *req, uint32_t index)
827 {
828 srb_t *sp;
829 struct qla_hw_data *ha = vha->hw;
830
831 /* Validate handle. */
832 if (index >= MAX_OUTSTANDING_COMMANDS) {
833 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
834 vha->host_no, index));
835 qla_printk(KERN_WARNING, ha,
836 "Invalid SCSI completion handle %d.\n", index);
837
838 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
839 return;
840 }
841
842 sp = req->outstanding_cmds[index];
843 if (sp) {
844 /* Free outstanding command slot. */
845 req->outstanding_cmds[index] = NULL;
846
847 /* Save ISP completion status */
848 sp->cmd->result = DID_OK << 16;
849 qla2x00_sp_compl(ha, sp);
850 } else {
851 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion"
852 " handle(0x%x)\n", vha->host_no, req->id, index));
853 qla_printk(KERN_WARNING, ha,
854 "Invalid ISP SCSI completion handle\n");
855
856 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
857 }
858 }
859
860 static srb_t *
861 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
862 struct req_que *req, void *iocb)
863 {
864 struct qla_hw_data *ha = vha->hw;
865 sts_entry_t *pkt = iocb;
866 srb_t *sp = NULL;
867 uint16_t index;
868
869 index = LSW(pkt->handle);
870 if (index >= MAX_OUTSTANDING_COMMANDS) {
871 qla_printk(KERN_WARNING, ha,
872 "%s: Invalid completion handle (%x).\n", func, index);
873 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
874 goto done;
875 }
876 sp = req->outstanding_cmds[index];
877 if (!sp) {
878 qla_printk(KERN_WARNING, ha,
879 "%s: Invalid completion handle (%x) -- timed-out.\n", func,
880 index);
881 return sp;
882 }
883 if (sp->handle != index) {
884 qla_printk(KERN_WARNING, ha,
885 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle,
886 index);
887 return NULL;
888 }
889
890 req->outstanding_cmds[index] = NULL;
891
892 done:
893 return sp;
894 }
895
896 static void
897 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
898 struct mbx_entry *mbx)
899 {
900 const char func[] = "MBX-IOCB";
901 const char *type;
902 fc_port_t *fcport;
903 srb_t *sp;
904 struct srb_iocb *lio;
905 struct srb_ctx *ctx;
906 uint16_t *data;
907 uint16_t status;
908
909 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
910 if (!sp)
911 return;
912
913 ctx = sp->ctx;
914 lio = ctx->u.iocb_cmd;
915 type = ctx->name;
916 fcport = sp->fcport;
917 data = lio->u.logio.data;
918
919 data[0] = MBS_COMMAND_ERROR;
920 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
921 QLA_LOGIO_LOGIN_RETRIED : 0;
922 if (mbx->entry_status) {
923 DEBUG2(printk(KERN_WARNING
924 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x "
925 "entry-status=%x status=%x state-flag=%x "
926 "status-flags=%x.\n",
927 fcport->vha->host_no, sp->handle, type,
928 fcport->d_id.b.domain, fcport->d_id.b.area,
929 fcport->d_id.b.al_pa, mbx->entry_status,
930 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
931 le16_to_cpu(mbx->status_flags)));
932
933 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx)));
934
935 goto logio_done;
936 }
937
938 status = le16_to_cpu(mbx->status);
939 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD &&
940 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
941 status = 0;
942 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
943 DEBUG2(printk(KERN_DEBUG
944 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
945 "mbx1=%x.\n",
946 fcport->vha->host_no, sp->handle, type,
947 fcport->d_id.b.domain, fcport->d_id.b.area,
948 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1)));
949
950 data[0] = MBS_COMMAND_COMPLETE;
951 if (ctx->type == SRB_LOGIN_CMD) {
952 fcport->port_type = FCT_TARGET;
953 if (le16_to_cpu(mbx->mb1) & BIT_0)
954 fcport->port_type = FCT_INITIATOR;
955 else if (le16_to_cpu(mbx->mb1) & BIT_1)
956 fcport->flags |= FCF_FCP2_DEVICE;
957 }
958 goto logio_done;
959 }
960
961 data[0] = le16_to_cpu(mbx->mb0);
962 switch (data[0]) {
963 case MBS_PORT_ID_USED:
964 data[1] = le16_to_cpu(mbx->mb1);
965 break;
966 case MBS_LOOP_ID_USED:
967 break;
968 default:
969 data[0] = MBS_COMMAND_ERROR;
970 break;
971 }
972
973 DEBUG2(printk(KERN_WARNING
974 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x "
975 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
976 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
977 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
978 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
979 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
980 le16_to_cpu(mbx->mb7)));
981
982 logio_done:
983 lio->done(sp);
984 }
985
986 static void
987 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
988 sts_entry_t *pkt, int iocb_type)
989 {
990 const char func[] = "CT_IOCB";
991 const char *type;
992 struct qla_hw_data *ha = vha->hw;
993 srb_t *sp;
994 struct srb_ctx *sp_bsg;
995 struct fc_bsg_job *bsg_job;
996 uint16_t comp_status;
997
998 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
999 if (!sp)
1000 return;
1001
1002 sp_bsg = sp->ctx;
1003 bsg_job = sp_bsg->u.bsg_job;
1004
1005 type = NULL;
1006 switch (sp_bsg->type) {
1007 case SRB_CT_CMD:
1008 type = "ct pass-through";
1009 break;
1010 default:
1011 qla_printk(KERN_WARNING, ha,
1012 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1013 sp_bsg->type);
1014 return;
1015 }
1016
1017 comp_status = le16_to_cpu(pkt->comp_status);
1018
1019 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1020 * fc payload to the caller
1021 */
1022 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1023 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1024
1025 if (comp_status != CS_COMPLETE) {
1026 if (comp_status == CS_DATA_UNDERRUN) {
1027 bsg_job->reply->result = DID_OK << 16;
1028 bsg_job->reply->reply_payload_rcv_len =
1029 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1030
1031 DEBUG2(qla_printk(KERN_WARNING, ha,
1032 "scsi(%ld): CT pass-through-%s error "
1033 "comp_status-status=0x%x total_byte = 0x%x.\n",
1034 vha->host_no, type, comp_status,
1035 bsg_job->reply->reply_payload_rcv_len));
1036 } else {
1037 DEBUG2(qla_printk(KERN_WARNING, ha,
1038 "scsi(%ld): CT pass-through-%s error "
1039 "comp_status-status=0x%x.\n",
1040 vha->host_no, type, comp_status));
1041 bsg_job->reply->result = DID_ERROR << 16;
1042 bsg_job->reply->reply_payload_rcv_len = 0;
1043 }
1044 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1045 } else {
1046 bsg_job->reply->result = DID_OK << 16;;
1047 bsg_job->reply->reply_payload_rcv_len =
1048 bsg_job->reply_payload.payload_len;
1049 bsg_job->reply_len = 0;
1050 }
1051
1052 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1053 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1054
1055 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1056 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1057
1058 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1059 kfree(sp->fcport);
1060
1061 kfree(sp->ctx);
1062 mempool_free(sp, ha->srb_mempool);
1063 bsg_job->job_done(bsg_job);
1064 }
1065
1066 static void
1067 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1068 struct sts_entry_24xx *pkt, int iocb_type)
1069 {
1070 const char func[] = "ELS_CT_IOCB";
1071 const char *type;
1072 struct qla_hw_data *ha = vha->hw;
1073 srb_t *sp;
1074 struct srb_ctx *sp_bsg;
1075 struct fc_bsg_job *bsg_job;
1076 uint16_t comp_status;
1077 uint32_t fw_status[3];
1078 uint8_t* fw_sts_ptr;
1079
1080 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1081 if (!sp)
1082 return;
1083 sp_bsg = sp->ctx;
1084 bsg_job = sp_bsg->u.bsg_job;
1085
1086 type = NULL;
1087 switch (sp_bsg->type) {
1088 case SRB_ELS_CMD_RPT:
1089 case SRB_ELS_CMD_HST:
1090 type = "els";
1091 break;
1092 case SRB_CT_CMD:
1093 type = "ct pass-through";
1094 break;
1095 default:
1096 qla_printk(KERN_WARNING, ha,
1097 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp,
1098 sp_bsg->type);
1099 return;
1100 }
1101
1102 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1103 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1104 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1105
1106 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1107 * fc payload to the caller
1108 */
1109 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1110 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1111
1112 if (comp_status != CS_COMPLETE) {
1113 if (comp_status == CS_DATA_UNDERRUN) {
1114 bsg_job->reply->result = DID_OK << 16;
1115 bsg_job->reply->reply_payload_rcv_len =
1116 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1117
1118 DEBUG2(qla_printk(KERN_WARNING, ha,
1119 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1120 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1121 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2],
1122 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count)));
1123 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1124 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1125 }
1126 else {
1127 DEBUG2(qla_printk(KERN_WARNING, ha,
1128 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x "
1129 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1130 vha->host_no, sp->handle, type, comp_status,
1131 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1),
1132 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2)));
1133 bsg_job->reply->result = DID_ERROR << 16;
1134 bsg_job->reply->reply_payload_rcv_len = 0;
1135 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1136 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1137 }
1138 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt)));
1139 }
1140 else {
1141 bsg_job->reply->result = DID_OK << 16;;
1142 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1143 bsg_job->reply_len = 0;
1144 }
1145
1146 dma_unmap_sg(&ha->pdev->dev,
1147 bsg_job->request_payload.sg_list,
1148 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1149 dma_unmap_sg(&ha->pdev->dev,
1150 bsg_job->reply_payload.sg_list,
1151 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1152 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1153 (sp_bsg->type == SRB_CT_CMD))
1154 kfree(sp->fcport);
1155 kfree(sp->ctx);
1156 mempool_free(sp, ha->srb_mempool);
1157 bsg_job->job_done(bsg_job);
1158 }
1159
1160 static void
1161 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1162 struct logio_entry_24xx *logio)
1163 {
1164 const char func[] = "LOGIO-IOCB";
1165 const char *type;
1166 fc_port_t *fcport;
1167 srb_t *sp;
1168 struct srb_iocb *lio;
1169 struct srb_ctx *ctx;
1170 uint16_t *data;
1171 uint32_t iop[2];
1172
1173 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1174 if (!sp)
1175 return;
1176
1177 ctx = sp->ctx;
1178 lio = ctx->u.iocb_cmd;
1179 type = ctx->name;
1180 fcport = sp->fcport;
1181 data = lio->u.logio.data;
1182
1183 data[0] = MBS_COMMAND_ERROR;
1184 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1185 QLA_LOGIO_LOGIN_RETRIED : 0;
1186 if (logio->entry_status) {
1187 DEBUG2(printk(KERN_WARNING
1188 "scsi(%ld:%x): Async-%s error entry - "
1189 "portid=%02x%02x%02x entry-status=%x.\n",
1190 fcport->vha->host_no, sp->handle, type,
1191 fcport->d_id.b.domain, fcport->d_id.b.area,
1192 fcport->d_id.b.al_pa, logio->entry_status));
1193 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio)));
1194
1195 goto logio_done;
1196 }
1197
1198 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1199 DEBUG2(printk(KERN_DEBUG
1200 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x "
1201 "iop0=%x.\n",
1202 fcport->vha->host_no, sp->handle, type,
1203 fcport->d_id.b.domain, fcport->d_id.b.area,
1204 fcport->d_id.b.al_pa,
1205 le32_to_cpu(logio->io_parameter[0])));
1206
1207 data[0] = MBS_COMMAND_COMPLETE;
1208 if (ctx->type != SRB_LOGIN_CMD)
1209 goto logio_done;
1210
1211 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1212 if (iop[0] & BIT_4) {
1213 fcport->port_type = FCT_TARGET;
1214 if (iop[0] & BIT_8)
1215 fcport->flags |= FCF_FCP2_DEVICE;
1216 } else if (iop[0] & BIT_5)
1217 fcport->port_type = FCT_INITIATOR;
1218
1219 if (logio->io_parameter[7] || logio->io_parameter[8])
1220 fcport->supported_classes |= FC_COS_CLASS2;
1221 if (logio->io_parameter[9] || logio->io_parameter[10])
1222 fcport->supported_classes |= FC_COS_CLASS3;
1223
1224 goto logio_done;
1225 }
1226
1227 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1228 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1229 switch (iop[0]) {
1230 case LSC_SCODE_PORTID_USED:
1231 data[0] = MBS_PORT_ID_USED;
1232 data[1] = LSW(iop[1]);
1233 break;
1234 case LSC_SCODE_NPORT_USED:
1235 data[0] = MBS_LOOP_ID_USED;
1236 break;
1237 case LSC_SCODE_CMD_FAILED:
1238 if ((iop[1] & 0xff) == 0x05) {
1239 data[0] = MBS_NOT_LOGGED_IN;
1240 break;
1241 }
1242 /* Fall through. */
1243 default:
1244 data[0] = MBS_COMMAND_ERROR;
1245 break;
1246 }
1247
1248 DEBUG2(printk(KERN_WARNING
1249 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x "
1250 "iop0=%x iop1=%x.\n",
1251 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain,
1252 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1253 le16_to_cpu(logio->comp_status),
1254 le32_to_cpu(logio->io_parameter[0]),
1255 le32_to_cpu(logio->io_parameter[1])));
1256
1257 logio_done:
1258 lio->done(sp);
1259 }
1260
1261 static void
1262 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1263 struct tsk_mgmt_entry *tsk)
1264 {
1265 const char func[] = "TMF-IOCB";
1266 const char *type;
1267 fc_port_t *fcport;
1268 srb_t *sp;
1269 struct srb_iocb *iocb;
1270 struct srb_ctx *ctx;
1271 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1272 int error = 1;
1273
1274 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1275 if (!sp)
1276 return;
1277
1278 ctx = sp->ctx;
1279 iocb = ctx->u.iocb_cmd;
1280 type = ctx->name;
1281 fcport = sp->fcport;
1282
1283 if (sts->entry_status) {
1284 DEBUG2(printk(KERN_WARNING
1285 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n",
1286 fcport->vha->host_no, sp->handle, type,
1287 sts->entry_status));
1288 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1289 DEBUG2(printk(KERN_WARNING
1290 "scsi(%ld:%x): Async-%s error - completion status(%x).\n",
1291 fcport->vha->host_no, sp->handle, type,
1292 sts->comp_status));
1293 } else if (!(le16_to_cpu(sts->scsi_status) &
1294 SS_RESPONSE_INFO_LEN_VALID)) {
1295 DEBUG2(printk(KERN_WARNING
1296 "scsi(%ld:%x): Async-%s error - no response info(%x).\n",
1297 fcport->vha->host_no, sp->handle, type,
1298 sts->scsi_status));
1299 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1300 DEBUG2(printk(KERN_WARNING
1301 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n",
1302 fcport->vha->host_no, sp->handle, type,
1303 sts->rsp_data_len));
1304 } else if (sts->data[3]) {
1305 DEBUG2(printk(KERN_WARNING
1306 "scsi(%ld:%x): Async-%s error - response(%x).\n",
1307 fcport->vha->host_no, sp->handle, type,
1308 sts->data[3]));
1309 } else {
1310 error = 0;
1311 }
1312
1313 if (error) {
1314 iocb->u.tmf.data = error;
1315 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts)));
1316 }
1317
1318 iocb->done(sp);
1319 }
1320
1321 /**
1322 * qla2x00_process_response_queue() - Process response queue entries.
1323 * @ha: SCSI driver HA context
1324 */
1325 void
1326 qla2x00_process_response_queue(struct rsp_que *rsp)
1327 {
1328 struct scsi_qla_host *vha;
1329 struct qla_hw_data *ha = rsp->hw;
1330 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1331 sts_entry_t *pkt;
1332 uint16_t handle_cnt;
1333 uint16_t cnt;
1334
1335 vha = pci_get_drvdata(ha->pdev);
1336
1337 if (!vha->flags.online)
1338 return;
1339
1340 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1341 pkt = (sts_entry_t *)rsp->ring_ptr;
1342
1343 rsp->ring_index++;
1344 if (rsp->ring_index == rsp->length) {
1345 rsp->ring_index = 0;
1346 rsp->ring_ptr = rsp->ring;
1347 } else {
1348 rsp->ring_ptr++;
1349 }
1350
1351 if (pkt->entry_status != 0) {
1352 DEBUG3(printk(KERN_INFO
1353 "scsi(%ld): Process error entry.\n", vha->host_no));
1354
1355 qla2x00_error_entry(vha, rsp, pkt);
1356 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1357 wmb();
1358 continue;
1359 }
1360
1361 switch (pkt->entry_type) {
1362 case STATUS_TYPE:
1363 qla2x00_status_entry(vha, rsp, pkt);
1364 break;
1365 case STATUS_TYPE_21:
1366 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1367 for (cnt = 0; cnt < handle_cnt; cnt++) {
1368 qla2x00_process_completed_request(vha, rsp->req,
1369 ((sts21_entry_t *)pkt)->handle[cnt]);
1370 }
1371 break;
1372 case STATUS_TYPE_22:
1373 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1374 for (cnt = 0; cnt < handle_cnt; cnt++) {
1375 qla2x00_process_completed_request(vha, rsp->req,
1376 ((sts22_entry_t *)pkt)->handle[cnt]);
1377 }
1378 break;
1379 case STATUS_CONT_TYPE:
1380 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1381 break;
1382 case MBX_IOCB_TYPE:
1383 qla2x00_mbx_iocb_entry(vha, rsp->req,
1384 (struct mbx_entry *)pkt);
1385 break;
1386 case CT_IOCB_TYPE:
1387 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1388 break;
1389 default:
1390 /* Type Not Supported. */
1391 DEBUG4(printk(KERN_WARNING
1392 "scsi(%ld): Received unknown response pkt type %x "
1393 "entry status=%x.\n",
1394 vha->host_no, pkt->entry_type, pkt->entry_status));
1395 break;
1396 }
1397 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1398 wmb();
1399 }
1400
1401 /* Adjust ring index */
1402 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1403 }
1404
1405 static inline void
1406
1407 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1408 uint32_t sense_len, struct rsp_que *rsp)
1409 {
1410 struct scsi_cmnd *cp = sp->cmd;
1411
1412 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1413 sense_len = SCSI_SENSE_BUFFERSIZE;
1414
1415 sp->request_sense_length = sense_len;
1416 sp->request_sense_ptr = cp->sense_buffer;
1417 if (sp->request_sense_length > par_sense_len)
1418 sense_len = par_sense_len;
1419
1420 memcpy(cp->sense_buffer, sense_data, sense_len);
1421
1422 sp->request_sense_ptr += sense_len;
1423 sp->request_sense_length -= sense_len;
1424 if (sp->request_sense_length != 0)
1425 rsp->status_srb = sp;
1426
1427 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
1428 "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no,
1429 cp->device->channel, cp->device->id, cp->device->lun, cp,
1430 cp->serial_number));
1431 if (sense_len)
1432 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
1433 }
1434
1435 struct scsi_dif_tuple {
1436 __be16 guard; /* Checksum */
1437 __be16 app_tag; /* APPL identifer */
1438 __be32 ref_tag; /* Target LBA or indirect LBA */
1439 };
1440
1441 /*
1442 * Checks the guard or meta-data for the type of error
1443 * detected by the HBA. In case of errors, we set the
1444 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1445 * to indicate to the kernel that the HBA detected error.
1446 */
1447 static inline void
1448 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1449 {
1450 struct scsi_cmnd *cmd = sp->cmd;
1451 struct scsi_dif_tuple *ep =
1452 (struct scsi_dif_tuple *)&sts24->data[20];
1453 struct scsi_dif_tuple *ap =
1454 (struct scsi_dif_tuple *)&sts24->data[12];
1455 uint32_t e_ref_tag, a_ref_tag;
1456 uint16_t e_app_tag, a_app_tag;
1457 uint16_t e_guard, a_guard;
1458
1459 e_ref_tag = be32_to_cpu(ep->ref_tag);
1460 a_ref_tag = be32_to_cpu(ap->ref_tag);
1461 e_app_tag = be16_to_cpu(ep->app_tag);
1462 a_app_tag = be16_to_cpu(ap->app_tag);
1463 e_guard = be16_to_cpu(ep->guard);
1464 a_guard = be16_to_cpu(ap->guard);
1465
1466 DEBUG18(printk(KERN_DEBUG
1467 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24));
1468
1469 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1470 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1471 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n",
1472 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1473 a_app_tag, e_app_tag, a_guard, e_guard));
1474
1475
1476 /* check guard */
1477 if (e_guard != a_guard) {
1478 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1479 0x10, 0x1);
1480 set_driver_byte(cmd, DRIVER_SENSE);
1481 set_host_byte(cmd, DID_ABORT);
1482 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1483 return;
1484 }
1485
1486 /* check appl tag */
1487 if (e_app_tag != a_app_tag) {
1488 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1489 0x10, 0x2);
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 ref tag */
1497 if (e_ref_tag != a_ref_tag) {
1498 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1499 0x10, 0x3);
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
1507 /**
1508 * qla2x00_status_entry() - Process a Status IOCB entry.
1509 * @ha: SCSI driver HA context
1510 * @pkt: Entry pointer
1511 */
1512 static void
1513 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1514 {
1515 srb_t *sp;
1516 fc_port_t *fcport;
1517 struct scsi_cmnd *cp;
1518 sts_entry_t *sts;
1519 struct sts_entry_24xx *sts24;
1520 uint16_t comp_status;
1521 uint16_t scsi_status;
1522 uint16_t ox_id;
1523 uint8_t lscsi_status;
1524 int32_t resid;
1525 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1526 fw_resid_len;
1527 uint8_t *rsp_info, *sense_data;
1528 struct qla_hw_data *ha = vha->hw;
1529 uint32_t handle;
1530 uint16_t que;
1531 struct req_que *req;
1532 int logit = 1;
1533
1534 sts = (sts_entry_t *) pkt;
1535 sts24 = (struct sts_entry_24xx *) pkt;
1536 if (IS_FWI2_CAPABLE(ha)) {
1537 comp_status = le16_to_cpu(sts24->comp_status);
1538 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1539 } else {
1540 comp_status = le16_to_cpu(sts->comp_status);
1541 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1542 }
1543 handle = (uint32_t) LSW(sts->handle);
1544 que = MSW(sts->handle);
1545 req = ha->req_q_map[que];
1546
1547 /* Fast path completion. */
1548 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1549 qla2x00_process_completed_request(vha, req, handle);
1550
1551 return;
1552 }
1553
1554 /* Validate handle. */
1555 if (handle < MAX_OUTSTANDING_COMMANDS) {
1556 sp = req->outstanding_cmds[handle];
1557 req->outstanding_cmds[handle] = NULL;
1558 } else
1559 sp = NULL;
1560
1561 if (sp == NULL) {
1562 qla_printk(KERN_WARNING, ha,
1563 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no,
1564 sts->handle);
1565
1566 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1567 qla2xxx_wake_dpc(vha);
1568 return;
1569 }
1570 cp = sp->cmd;
1571 if (cp == NULL) {
1572 qla_printk(KERN_WARNING, ha,
1573 "scsi(%ld): Command already returned (0x%x/%p).\n",
1574 vha->host_no, sts->handle, sp);
1575
1576 return;
1577 }
1578
1579 lscsi_status = scsi_status & STATUS_MASK;
1580
1581 fcport = sp->fcport;
1582
1583 ox_id = 0;
1584 sense_len = par_sense_len = rsp_info_len = resid_len =
1585 fw_resid_len = 0;
1586 if (IS_FWI2_CAPABLE(ha)) {
1587 if (scsi_status & SS_SENSE_LEN_VALID)
1588 sense_len = le32_to_cpu(sts24->sense_len);
1589 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1590 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1591 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1592 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1593 if (comp_status == CS_DATA_UNDERRUN)
1594 fw_resid_len = le32_to_cpu(sts24->residual_len);
1595 rsp_info = sts24->data;
1596 sense_data = sts24->data;
1597 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1598 ox_id = le16_to_cpu(sts24->ox_id);
1599 par_sense_len = sizeof(sts24->data);
1600 } else {
1601 if (scsi_status & SS_SENSE_LEN_VALID)
1602 sense_len = le16_to_cpu(sts->req_sense_length);
1603 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1604 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1605 resid_len = le32_to_cpu(sts->residual_length);
1606 rsp_info = sts->rsp_info;
1607 sense_data = sts->req_sense_data;
1608 par_sense_len = sizeof(sts->req_sense_data);
1609 }
1610
1611 /* Check for any FCP transport errors. */
1612 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1613 /* Sense data lies beyond any FCP RESPONSE data. */
1614 if (IS_FWI2_CAPABLE(ha)) {
1615 sense_data += rsp_info_len;
1616 par_sense_len -= rsp_info_len;
1617 }
1618 if (rsp_info_len > 3 && rsp_info[3]) {
1619 DEBUG2(qla_printk(KERN_INFO, ha,
1620 "scsi(%ld:%d:%d): FCP I/O protocol failure "
1621 "(0x%x/0x%x).\n", vha->host_no, cp->device->id,
1622 cp->device->lun, rsp_info_len, rsp_info[3]));
1623
1624 cp->result = DID_BUS_BUSY << 16;
1625 goto out;
1626 }
1627 }
1628
1629 /* Check for overrun. */
1630 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1631 scsi_status & SS_RESIDUAL_OVER)
1632 comp_status = CS_DATA_OVERRUN;
1633
1634 /*
1635 * Based on Host and scsi status generate status code for Linux
1636 */
1637 switch (comp_status) {
1638 case CS_COMPLETE:
1639 case CS_QUEUE_FULL:
1640 if (scsi_status == 0) {
1641 cp->result = DID_OK << 16;
1642 break;
1643 }
1644 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1645 resid = resid_len;
1646 scsi_set_resid(cp, resid);
1647
1648 if (!lscsi_status &&
1649 ((unsigned)(scsi_bufflen(cp) - resid) <
1650 cp->underflow)) {
1651 qla_printk(KERN_INFO, ha,
1652 "scsi(%ld:%d:%d): Mid-layer underflow "
1653 "detected (0x%x of 0x%x bytes).\n",
1654 vha->host_no, cp->device->id,
1655 cp->device->lun, resid, scsi_bufflen(cp));
1656
1657 cp->result = DID_ERROR << 16;
1658 break;
1659 }
1660 }
1661 cp->result = DID_OK << 16 | lscsi_status;
1662
1663 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1664 DEBUG2(qla_printk(KERN_INFO, ha,
1665 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1666 vha->host_no, cp->device->id, cp->device->lun));
1667 break;
1668 }
1669 logit = 0;
1670 if (lscsi_status != SS_CHECK_CONDITION)
1671 break;
1672
1673 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1674 if (!(scsi_status & SS_SENSE_LEN_VALID))
1675 break;
1676
1677 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1678 rsp);
1679 break;
1680
1681 case CS_DATA_UNDERRUN:
1682 /* Use F/W calculated residual length. */
1683 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1684 scsi_set_resid(cp, resid);
1685 if (scsi_status & SS_RESIDUAL_UNDER) {
1686 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1687 DEBUG2(qla_printk(KERN_INFO, ha,
1688 "scsi(%ld:%d:%d) Dropped frame(s) detected "
1689 "(0x%x of 0x%x bytes).\n", vha->host_no,
1690 cp->device->id, cp->device->lun, resid,
1691 scsi_bufflen(cp)));
1692
1693 cp->result = DID_ERROR << 16 | lscsi_status;
1694 break;
1695 }
1696
1697 if (!lscsi_status &&
1698 ((unsigned)(scsi_bufflen(cp) - resid) <
1699 cp->underflow)) {
1700 qla_printk(KERN_INFO, ha,
1701 "scsi(%ld:%d:%d): Mid-layer underflow "
1702 "detected (0x%x of 0x%x bytes).\n",
1703 vha->host_no, cp->device->id,
1704 cp->device->lun, resid, scsi_bufflen(cp));
1705
1706 cp->result = DID_ERROR << 16;
1707 break;
1708 }
1709 } else {
1710 DEBUG2(qla_printk(KERN_INFO, ha,
1711 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x "
1712 "of 0x%x bytes).\n", vha->host_no, cp->device->id,
1713 cp->device->lun, resid, scsi_bufflen(cp)));
1714
1715 cp->result = DID_ERROR << 16 | lscsi_status;
1716 goto check_scsi_status;
1717 }
1718
1719 cp->result = DID_OK << 16 | lscsi_status;
1720 logit = 0;
1721
1722 check_scsi_status:
1723 /*
1724 * Check to see if SCSI Status is non zero. If so report SCSI
1725 * Status.
1726 */
1727 if (lscsi_status != 0) {
1728 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1729 DEBUG2(qla_printk(KERN_INFO, ha,
1730 "scsi(%ld:%d:%d) QUEUE FULL detected.\n",
1731 vha->host_no, cp->device->id,
1732 cp->device->lun));
1733 logit = 1;
1734 break;
1735 }
1736 if (lscsi_status != SS_CHECK_CONDITION)
1737 break;
1738
1739 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1740 if (!(scsi_status & SS_SENSE_LEN_VALID))
1741 break;
1742
1743 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1744 sense_len, rsp);
1745 }
1746 break;
1747
1748 case CS_PORT_LOGGED_OUT:
1749 case CS_PORT_CONFIG_CHG:
1750 case CS_PORT_BUSY:
1751 case CS_INCOMPLETE:
1752 case CS_PORT_UNAVAILABLE:
1753 case CS_TIMEOUT:
1754 /*
1755 * We are going to have the fc class block the rport
1756 * while we try to recover so instruct the mid layer
1757 * to requeue until the class decides how to handle this.
1758 */
1759 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1760
1761 if (comp_status == CS_TIMEOUT) {
1762 if (IS_FWI2_CAPABLE(ha))
1763 break;
1764 else if ((le16_to_cpu(sts->status_flags) &
1765 SF_LOGOUT_SENT) == 0)
1766 break;
1767 }
1768
1769 DEBUG2(qla_printk(KERN_INFO, ha,
1770 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n",
1771 vha->host_no, cp->device->id, cp->device->lun,
1772 atomic_read(&fcport->state)));
1773
1774 if (atomic_read(&fcport->state) == FCS_ONLINE)
1775 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1776 break;
1777
1778 case CS_RESET:
1779 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1780 break;
1781
1782 case CS_ABORTED:
1783 cp->result = DID_RESET << 16;
1784 break;
1785
1786 case CS_DIF_ERROR:
1787 qla2x00_handle_dif_error(sp, sts24);
1788 break;
1789 default:
1790 cp->result = DID_ERROR << 16;
1791 break;
1792 }
1793
1794 out:
1795 if (logit)
1796 DEBUG2(qla_printk(KERN_INFO, ha,
1797 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) "
1798 "oxid=0x%x ser=0x%lx cdb=%02x%02x%02x len=0x%x "
1799 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no,
1800 cp->device->id, cp->device->lun, comp_status, scsi_status,
1801 cp->result, ox_id, cp->serial_number, cp->cmnd[0],
1802 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len,
1803 resid_len, fw_resid_len));
1804
1805 if (rsp->status_srb == NULL)
1806 qla2x00_sp_compl(ha, sp);
1807 }
1808
1809 /**
1810 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1811 * @ha: SCSI driver HA context
1812 * @pkt: Entry pointer
1813 *
1814 * Extended sense data.
1815 */
1816 static void
1817 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1818 {
1819 uint8_t sense_sz = 0;
1820 struct qla_hw_data *ha = rsp->hw;
1821 srb_t *sp = rsp->status_srb;
1822 struct scsi_cmnd *cp;
1823
1824 if (sp != NULL && sp->request_sense_length != 0) {
1825 cp = sp->cmd;
1826 if (cp == NULL) {
1827 DEBUG2(printk("%s(): Cmd already returned back to OS "
1828 "sp=%p.\n", __func__, sp));
1829 qla_printk(KERN_INFO, ha,
1830 "cmd is NULL: already returned to OS (sp=%p)\n",
1831 sp);
1832
1833 rsp->status_srb = NULL;
1834 return;
1835 }
1836
1837 if (sp->request_sense_length > sizeof(pkt->data)) {
1838 sense_sz = sizeof(pkt->data);
1839 } else {
1840 sense_sz = sp->request_sense_length;
1841 }
1842
1843 /* Move sense data. */
1844 if (IS_FWI2_CAPABLE(ha))
1845 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1846 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1847 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1848
1849 sp->request_sense_ptr += sense_sz;
1850 sp->request_sense_length -= sense_sz;
1851
1852 /* Place command on done queue. */
1853 if (sp->request_sense_length == 0) {
1854 rsp->status_srb = NULL;
1855 qla2x00_sp_compl(ha, sp);
1856 }
1857 }
1858 }
1859
1860 /**
1861 * qla2x00_error_entry() - Process an error entry.
1862 * @ha: SCSI driver HA context
1863 * @pkt: Entry pointer
1864 */
1865 static void
1866 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1867 {
1868 srb_t *sp;
1869 struct qla_hw_data *ha = vha->hw;
1870 uint32_t handle = LSW(pkt->handle);
1871 uint16_t que = MSW(pkt->handle);
1872 struct req_que *req = ha->req_q_map[que];
1873 #if defined(QL_DEBUG_LEVEL_2)
1874 if (pkt->entry_status & RF_INV_E_ORDER)
1875 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1876 else if (pkt->entry_status & RF_INV_E_COUNT)
1877 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1878 else if (pkt->entry_status & RF_INV_E_PARAM)
1879 qla_printk(KERN_ERR, ha,
1880 "%s: Invalid Entry Parameter\n", __func__);
1881 else if (pkt->entry_status & RF_INV_E_TYPE)
1882 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1883 else if (pkt->entry_status & RF_BUSY)
1884 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1885 else
1886 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1887 #endif
1888
1889 /* Validate handle. */
1890 if (handle < MAX_OUTSTANDING_COMMANDS)
1891 sp = req->outstanding_cmds[handle];
1892 else
1893 sp = NULL;
1894
1895 if (sp) {
1896 /* Free outstanding command slot. */
1897 req->outstanding_cmds[handle] = NULL;
1898
1899 /* Bad payload or header */
1900 if (pkt->entry_status &
1901 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1902 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1903 sp->cmd->result = DID_ERROR << 16;
1904 } else if (pkt->entry_status & RF_BUSY) {
1905 sp->cmd->result = DID_BUS_BUSY << 16;
1906 } else {
1907 sp->cmd->result = DID_ERROR << 16;
1908 }
1909 qla2x00_sp_compl(ha, sp);
1910
1911 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1912 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1913 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
1914 vha->host_no));
1915 qla_printk(KERN_WARNING, ha,
1916 "Error entry - invalid handle\n");
1917
1918 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1919 qla2xxx_wake_dpc(vha);
1920 }
1921 }
1922
1923 /**
1924 * qla24xx_mbx_completion() - Process mailbox command completions.
1925 * @ha: SCSI driver HA context
1926 * @mb0: Mailbox0 register
1927 */
1928 static void
1929 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1930 {
1931 uint16_t cnt;
1932 uint16_t __iomem *wptr;
1933 struct qla_hw_data *ha = vha->hw;
1934 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1935
1936 /* Load return mailbox registers. */
1937 ha->flags.mbox_int = 1;
1938 ha->mailbox_out[0] = mb0;
1939 wptr = (uint16_t __iomem *)&reg->mailbox1;
1940
1941 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1942 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1943 wptr++;
1944 }
1945
1946 if (ha->mcp) {
1947 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
1948 __func__, vha->host_no, ha->mcp->mb[0]));
1949 } else {
1950 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
1951 __func__, vha->host_no));
1952 }
1953 }
1954
1955 /**
1956 * qla24xx_process_response_queue() - Process response queue entries.
1957 * @ha: SCSI driver HA context
1958 */
1959 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1960 struct rsp_que *rsp)
1961 {
1962 struct sts_entry_24xx *pkt;
1963 struct qla_hw_data *ha = vha->hw;
1964
1965 if (!vha->flags.online)
1966 return;
1967
1968 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1969 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1970
1971 rsp->ring_index++;
1972 if (rsp->ring_index == rsp->length) {
1973 rsp->ring_index = 0;
1974 rsp->ring_ptr = rsp->ring;
1975 } else {
1976 rsp->ring_ptr++;
1977 }
1978
1979 if (pkt->entry_status != 0) {
1980 DEBUG3(printk(KERN_INFO
1981 "scsi(%ld): Process error entry.\n", vha->host_no));
1982
1983 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1984 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1985 wmb();
1986 continue;
1987 }
1988
1989 switch (pkt->entry_type) {
1990 case STATUS_TYPE:
1991 qla2x00_status_entry(vha, rsp, pkt);
1992 break;
1993 case STATUS_CONT_TYPE:
1994 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1995 break;
1996 case VP_RPT_ID_IOCB_TYPE:
1997 qla24xx_report_id_acquisition(vha,
1998 (struct vp_rpt_id_entry_24xx *)pkt);
1999 break;
2000 case LOGINOUT_PORT_IOCB_TYPE:
2001 qla24xx_logio_entry(vha, rsp->req,
2002 (struct logio_entry_24xx *)pkt);
2003 break;
2004 case TSK_MGMT_IOCB_TYPE:
2005 qla24xx_tm_iocb_entry(vha, rsp->req,
2006 (struct tsk_mgmt_entry *)pkt);
2007 break;
2008 case CT_IOCB_TYPE:
2009 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2010 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2011 break;
2012 case ELS_IOCB_TYPE:
2013 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2014 break;
2015 default:
2016 /* Type Not Supported. */
2017 DEBUG4(printk(KERN_WARNING
2018 "scsi(%ld): Received unknown response pkt type %x "
2019 "entry status=%x.\n",
2020 vha->host_no, pkt->entry_type, pkt->entry_status));
2021 break;
2022 }
2023 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2024 wmb();
2025 }
2026
2027 /* Adjust ring index */
2028 if (IS_QLA82XX(ha)) {
2029 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2030 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2031 } else
2032 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2033 }
2034
2035 static void
2036 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2037 {
2038 int rval;
2039 uint32_t cnt;
2040 struct qla_hw_data *ha = vha->hw;
2041 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2042
2043 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2044 return;
2045
2046 rval = QLA_SUCCESS;
2047 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2048 RD_REG_DWORD(&reg->iobase_addr);
2049 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2050 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2051 rval == QLA_SUCCESS; cnt--) {
2052 if (cnt) {
2053 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2054 udelay(10);
2055 } else
2056 rval = QLA_FUNCTION_TIMEOUT;
2057 }
2058 if (rval == QLA_SUCCESS)
2059 goto next_test;
2060
2061 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2062 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2063 rval == QLA_SUCCESS; cnt--) {
2064 if (cnt) {
2065 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2066 udelay(10);
2067 } else
2068 rval = QLA_FUNCTION_TIMEOUT;
2069 }
2070 if (rval != QLA_SUCCESS)
2071 goto done;
2072
2073 next_test:
2074 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2075 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
2076
2077 done:
2078 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2079 RD_REG_DWORD(&reg->iobase_window);
2080 }
2081
2082 /**
2083 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2084 * @irq:
2085 * @dev_id: SCSI driver HA context
2086 *
2087 * Called by system whenever the host adapter generates an interrupt.
2088 *
2089 * Returns handled flag.
2090 */
2091 irqreturn_t
2092 qla24xx_intr_handler(int irq, void *dev_id)
2093 {
2094 scsi_qla_host_t *vha;
2095 struct qla_hw_data *ha;
2096 struct device_reg_24xx __iomem *reg;
2097 int status;
2098 unsigned long iter;
2099 uint32_t stat;
2100 uint32_t hccr;
2101 uint16_t mb[4];
2102 struct rsp_que *rsp;
2103 unsigned long flags;
2104
2105 rsp = (struct rsp_que *) dev_id;
2106 if (!rsp) {
2107 printk(KERN_INFO
2108 "%s(): NULL response queue pointer\n", __func__);
2109 return IRQ_NONE;
2110 }
2111
2112 ha = rsp->hw;
2113 reg = &ha->iobase->isp24;
2114 status = 0;
2115
2116 if (unlikely(pci_channel_offline(ha->pdev)))
2117 return IRQ_HANDLED;
2118
2119 spin_lock_irqsave(&ha->hardware_lock, flags);
2120 vha = pci_get_drvdata(ha->pdev);
2121 for (iter = 50; iter--; ) {
2122 stat = RD_REG_DWORD(&reg->host_status);
2123 if (stat & HSRX_RISC_PAUSED) {
2124 if (unlikely(pci_channel_offline(ha->pdev)))
2125 break;
2126
2127 hccr = RD_REG_DWORD(&reg->hccr);
2128
2129 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2130 "Dumping firmware!\n", hccr);
2131
2132 qla2xxx_check_risc_status(vha);
2133
2134 ha->isp_ops->fw_dump(vha, 1);
2135 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2136 break;
2137 } else if ((stat & HSRX_RISC_INT) == 0)
2138 break;
2139
2140 switch (stat & 0xff) {
2141 case 0x1:
2142 case 0x2:
2143 case 0x10:
2144 case 0x11:
2145 qla24xx_mbx_completion(vha, MSW(stat));
2146 status |= MBX_INTERRUPT;
2147
2148 break;
2149 case 0x12:
2150 mb[0] = MSW(stat);
2151 mb[1] = RD_REG_WORD(&reg->mailbox1);
2152 mb[2] = RD_REG_WORD(&reg->mailbox2);
2153 mb[3] = RD_REG_WORD(&reg->mailbox3);
2154 qla2x00_async_event(vha, rsp, mb);
2155 break;
2156 case 0x13:
2157 case 0x14:
2158 qla24xx_process_response_queue(vha, rsp);
2159 break;
2160 default:
2161 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2162 "(%d).\n",
2163 vha->host_no, stat & 0xff));
2164 break;
2165 }
2166 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2167 RD_REG_DWORD_RELAXED(&reg->hccr);
2168 }
2169 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2170
2171 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2172 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2173 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2174 complete(&ha->mbx_intr_comp);
2175 }
2176
2177 return IRQ_HANDLED;
2178 }
2179
2180 static irqreturn_t
2181 qla24xx_msix_rsp_q(int irq, void *dev_id)
2182 {
2183 struct qla_hw_data *ha;
2184 struct rsp_que *rsp;
2185 struct device_reg_24xx __iomem *reg;
2186 struct scsi_qla_host *vha;
2187 unsigned long flags;
2188
2189 rsp = (struct rsp_que *) dev_id;
2190 if (!rsp) {
2191 printk(KERN_INFO
2192 "%s(): NULL response queue pointer\n", __func__);
2193 return IRQ_NONE;
2194 }
2195 ha = rsp->hw;
2196 reg = &ha->iobase->isp24;
2197
2198 spin_lock_irqsave(&ha->hardware_lock, flags);
2199
2200 vha = pci_get_drvdata(ha->pdev);
2201 qla24xx_process_response_queue(vha, rsp);
2202 if (!ha->flags.disable_msix_handshake) {
2203 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2204 RD_REG_DWORD_RELAXED(&reg->hccr);
2205 }
2206 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2207
2208 return IRQ_HANDLED;
2209 }
2210
2211 static irqreturn_t
2212 qla25xx_msix_rsp_q(int irq, void *dev_id)
2213 {
2214 struct qla_hw_data *ha;
2215 struct rsp_que *rsp;
2216 struct device_reg_24xx __iomem *reg;
2217 unsigned long flags;
2218
2219 rsp = (struct rsp_que *) dev_id;
2220 if (!rsp) {
2221 printk(KERN_INFO
2222 "%s(): NULL response queue pointer\n", __func__);
2223 return IRQ_NONE;
2224 }
2225 ha = rsp->hw;
2226
2227 /* Clear the interrupt, if enabled, for this response queue */
2228 if (rsp->options & ~BIT_6) {
2229 reg = &ha->iobase->isp24;
2230 spin_lock_irqsave(&ha->hardware_lock, flags);
2231 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2232 RD_REG_DWORD_RELAXED(&reg->hccr);
2233 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2234 }
2235 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2236
2237 return IRQ_HANDLED;
2238 }
2239
2240 static irqreturn_t
2241 qla24xx_msix_default(int irq, void *dev_id)
2242 {
2243 scsi_qla_host_t *vha;
2244 struct qla_hw_data *ha;
2245 struct rsp_que *rsp;
2246 struct device_reg_24xx __iomem *reg;
2247 int status;
2248 uint32_t stat;
2249 uint32_t hccr;
2250 uint16_t mb[4];
2251 unsigned long flags;
2252
2253 rsp = (struct rsp_que *) dev_id;
2254 if (!rsp) {
2255 DEBUG(printk(
2256 "%s(): NULL response queue pointer\n", __func__));
2257 return IRQ_NONE;
2258 }
2259 ha = rsp->hw;
2260 reg = &ha->iobase->isp24;
2261 status = 0;
2262
2263 spin_lock_irqsave(&ha->hardware_lock, flags);
2264 vha = pci_get_drvdata(ha->pdev);
2265 do {
2266 stat = RD_REG_DWORD(&reg->host_status);
2267 if (stat & HSRX_RISC_PAUSED) {
2268 if (unlikely(pci_channel_offline(ha->pdev)))
2269 break;
2270
2271 hccr = RD_REG_DWORD(&reg->hccr);
2272
2273 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
2274 "Dumping firmware!\n", hccr);
2275
2276 qla2xxx_check_risc_status(vha);
2277
2278 ha->isp_ops->fw_dump(vha, 1);
2279 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2280 break;
2281 } else if ((stat & HSRX_RISC_INT) == 0)
2282 break;
2283
2284 switch (stat & 0xff) {
2285 case 0x1:
2286 case 0x2:
2287 case 0x10:
2288 case 0x11:
2289 qla24xx_mbx_completion(vha, MSW(stat));
2290 status |= MBX_INTERRUPT;
2291
2292 break;
2293 case 0x12:
2294 mb[0] = MSW(stat);
2295 mb[1] = RD_REG_WORD(&reg->mailbox1);
2296 mb[2] = RD_REG_WORD(&reg->mailbox2);
2297 mb[3] = RD_REG_WORD(&reg->mailbox3);
2298 qla2x00_async_event(vha, rsp, mb);
2299 break;
2300 case 0x13:
2301 case 0x14:
2302 qla24xx_process_response_queue(vha, rsp);
2303 break;
2304 default:
2305 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
2306 "(%d).\n",
2307 vha->host_no, stat & 0xff));
2308 break;
2309 }
2310 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2311 } while (0);
2312 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2313
2314 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2315 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2316 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2317 complete(&ha->mbx_intr_comp);
2318 }
2319 return IRQ_HANDLED;
2320 }
2321
2322 /* Interrupt handling helpers. */
2323
2324 struct qla_init_msix_entry {
2325 const char *name;
2326 irq_handler_t handler;
2327 };
2328
2329 static struct qla_init_msix_entry msix_entries[3] = {
2330 { "qla2xxx (default)", qla24xx_msix_default },
2331 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2332 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2333 };
2334
2335 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2336 { "qla2xxx (default)", qla82xx_msix_default },
2337 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2338 };
2339
2340 static void
2341 qla24xx_disable_msix(struct qla_hw_data *ha)
2342 {
2343 int i;
2344 struct qla_msix_entry *qentry;
2345
2346 for (i = 0; i < ha->msix_count; i++) {
2347 qentry = &ha->msix_entries[i];
2348 if (qentry->have_irq)
2349 free_irq(qentry->vector, qentry->rsp);
2350 }
2351 pci_disable_msix(ha->pdev);
2352 kfree(ha->msix_entries);
2353 ha->msix_entries = NULL;
2354 ha->flags.msix_enabled = 0;
2355 }
2356
2357 static int
2358 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2359 {
2360 #define MIN_MSIX_COUNT 2
2361 int i, ret;
2362 struct msix_entry *entries;
2363 struct qla_msix_entry *qentry;
2364
2365 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2366 GFP_KERNEL);
2367 if (!entries)
2368 return -ENOMEM;
2369
2370 for (i = 0; i < ha->msix_count; i++)
2371 entries[i].entry = i;
2372
2373 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2374 if (ret) {
2375 if (ret < MIN_MSIX_COUNT)
2376 goto msix_failed;
2377
2378 qla_printk(KERN_WARNING, ha,
2379 "MSI-X: Failed to enable support -- %d/%d\n"
2380 " Retry with %d vectors\n", ha->msix_count, ret, ret);
2381 ha->msix_count = ret;
2382 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2383 if (ret) {
2384 msix_failed:
2385 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
2386 " support, giving up -- %d/%d\n",
2387 ha->msix_count, ret);
2388 goto msix_out;
2389 }
2390 ha->max_rsp_queues = ha->msix_count - 1;
2391 }
2392 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2393 ha->msix_count, GFP_KERNEL);
2394 if (!ha->msix_entries) {
2395 ret = -ENOMEM;
2396 goto msix_out;
2397 }
2398 ha->flags.msix_enabled = 1;
2399
2400 for (i = 0; i < ha->msix_count; i++) {
2401 qentry = &ha->msix_entries[i];
2402 qentry->vector = entries[i].vector;
2403 qentry->entry = entries[i].entry;
2404 qentry->have_irq = 0;
2405 qentry->rsp = NULL;
2406 }
2407
2408 /* Enable MSI-X vectors for the base queue */
2409 for (i = 0; i < 2; i++) {
2410 qentry = &ha->msix_entries[i];
2411 if (IS_QLA82XX(ha)) {
2412 ret = request_irq(qentry->vector,
2413 qla82xx_msix_entries[i].handler,
2414 0, qla82xx_msix_entries[i].name, rsp);
2415 } else {
2416 ret = request_irq(qentry->vector,
2417 msix_entries[i].handler,
2418 0, msix_entries[i].name, rsp);
2419 }
2420 if (ret) {
2421 qla_printk(KERN_WARNING, ha,
2422 "MSI-X: Unable to register handler -- %x/%d.\n",
2423 qentry->vector, ret);
2424 qla24xx_disable_msix(ha);
2425 ha->mqenable = 0;
2426 goto msix_out;
2427 }
2428 qentry->have_irq = 1;
2429 qentry->rsp = rsp;
2430 rsp->msix = qentry;
2431 }
2432
2433 /* Enable MSI-X vector for response queue update for queue 0 */
2434 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2435 ha->mqenable = 1;
2436
2437 msix_out:
2438 kfree(entries);
2439 return ret;
2440 }
2441
2442 int
2443 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2444 {
2445 int ret;
2446 device_reg_t __iomem *reg = ha->iobase;
2447
2448 /* If possible, enable MSI-X. */
2449 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2450 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2451 goto skip_msi;
2452
2453 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2454 (ha->pdev->subsystem_device == 0x7040 ||
2455 ha->pdev->subsystem_device == 0x7041 ||
2456 ha->pdev->subsystem_device == 0x1705)) {
2457 DEBUG2(qla_printk(KERN_WARNING, ha,
2458 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n",
2459 ha->pdev->subsystem_vendor,
2460 ha->pdev->subsystem_device));
2461 goto skip_msi;
2462 }
2463
2464 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2465 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2466 DEBUG2(qla_printk(KERN_WARNING, ha,
2467 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
2468 ha->pdev->revision, ha->fw_attributes));
2469 goto skip_msix;
2470 }
2471
2472 ret = qla24xx_enable_msix(ha, rsp);
2473 if (!ret) {
2474 DEBUG2(qla_printk(KERN_INFO, ha,
2475 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
2476 ha->fw_attributes));
2477 goto clear_risc_ints;
2478 }
2479 qla_printk(KERN_WARNING, ha,
2480 "MSI-X: Falling back-to MSI mode -- %d.\n", ret);
2481 skip_msix:
2482
2483 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2484 !IS_QLA8001(ha))
2485 goto skip_msi;
2486
2487 ret = pci_enable_msi(ha->pdev);
2488 if (!ret) {
2489 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
2490 ha->flags.msi_enabled = 1;
2491 } else
2492 qla_printk(KERN_WARNING, ha,
2493 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
2494 skip_msi:
2495
2496 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2497 IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp);
2498 if (ret) {
2499 qla_printk(KERN_WARNING, ha,
2500 "Failed to reserve interrupt %d already in use.\n",
2501 ha->pdev->irq);
2502 goto fail;
2503 }
2504 ha->flags.inta_enabled = 1;
2505 clear_risc_ints:
2506
2507 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2508 goto fail;
2509 spin_lock_irq(&ha->hardware_lock);
2510 if (IS_FWI2_CAPABLE(ha)) {
2511 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2512 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2513 } else {
2514 WRT_REG_WORD(&reg->isp.semaphore, 0);
2515 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2516 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2517 }
2518 spin_unlock_irq(&ha->hardware_lock);
2519
2520 fail:
2521 return ret;
2522 }
2523
2524 void
2525 qla2x00_free_irqs(scsi_qla_host_t *vha)
2526 {
2527 struct qla_hw_data *ha = vha->hw;
2528 struct rsp_que *rsp = ha->rsp_q_map[0];
2529
2530 if (ha->flags.msix_enabled)
2531 qla24xx_disable_msix(ha);
2532 else if (ha->flags.msi_enabled) {
2533 free_irq(ha->pdev->irq, rsp);
2534 pci_disable_msi(ha->pdev);
2535 } else
2536 free_irq(ha->pdev->irq, rsp);
2537 }
2538
2539
2540 int qla25xx_request_irq(struct rsp_que *rsp)
2541 {
2542 struct qla_hw_data *ha = rsp->hw;
2543 struct qla_init_msix_entry *intr = &msix_entries[2];
2544 struct qla_msix_entry *msix = rsp->msix;
2545 int ret;
2546
2547 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2548 if (ret) {
2549 qla_printk(KERN_WARNING, ha,
2550 "MSI-X: Unable to register handler -- %x/%d.\n",
2551 msix->vector, ret);
2552 return ret;
2553 }
2554 msix->have_irq = 1;
2555 msix->rsp = rsp;
2556 return ret;
2557 }
Tomato firmware and modifications.