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Linux 3.4.102
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
blobce42288049b5a20a5c57646ecf077886a1239ebb
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 ql_log(ql_log_info, NULL, 0x505d,
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 hammer 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 ql_dbg(ql_dbg_async, vha, 0x5025,
95 "Unrecognized interrupt type (%d).\n",
96 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 ql_log(ql_log_info, NULL, 0x5058,
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 ql_log(ql_log_warn, vha, 0x5026,
164 "Parity error -- HCCR=%x, Dumping "
165 "firmware.\n", hccr);
166 else
167 ql_log(ql_log_warn, vha, 0x5027,
168 "RISC paused -- HCCR=%x, Dumping "
169 "firmware.\n", hccr);
170
171 /*
172 * Issue a "HARD" reset in order for the RISC
173 * interrupt bit to be cleared. Schedule a big
174 * hammer to get out of the RISC PAUSED state.
175 */
176 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
177 RD_REG_WORD(&reg->hccr);
178
179 ha->isp_ops->fw_dump(vha, 1);
180 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
181 break;
182 } else if ((stat & HSR_RISC_INT) == 0)
183 break;
184
185 switch (stat & 0xff) {
186 case 0x1:
187 case 0x2:
188 case 0x10:
189 case 0x11:
190 qla2x00_mbx_completion(vha, MSW(stat));
191 status |= MBX_INTERRUPT;
192
193 /* Release mailbox registers. */
194 WRT_REG_WORD(&reg->semaphore, 0);
195 break;
196 case 0x12:
197 mb[0] = MSW(stat);
198 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
199 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
200 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
201 qla2x00_async_event(vha, rsp, mb);
202 break;
203 case 0x13:
204 qla2x00_process_response_queue(rsp);
205 break;
206 case 0x15:
207 mb[0] = MBA_CMPLT_1_16BIT;
208 mb[1] = MSW(stat);
209 qla2x00_async_event(vha, rsp, mb);
210 break;
211 case 0x16:
212 mb[0] = MBA_SCSI_COMPLETION;
213 mb[1] = MSW(stat);
214 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
215 qla2x00_async_event(vha, rsp, mb);
216 break;
217 default:
218 ql_dbg(ql_dbg_async, vha, 0x5028,
219 "Unrecognized interrupt type (%d).\n", stat & 0xff);
220 break;
221 }
222 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
223 RD_REG_WORD_RELAXED(&reg->hccr);
224 }
225 spin_unlock_irqrestore(&ha->hardware_lock, flags);
226
227 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
228 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
229 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
230 complete(&ha->mbx_intr_comp);
231 }
232
233 return (IRQ_HANDLED);
234 }
235
236 /**
237 * qla2x00_mbx_completion() - Process mailbox command completions.
238 * @ha: SCSI driver HA context
239 * @mb0: Mailbox0 register
240 */
241 static void
242 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
243 {
244 uint16_t cnt;
245 uint32_t mboxes;
246 uint16_t __iomem *wptr;
247 struct qla_hw_data *ha = vha->hw;
248 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
249
250 /* Read all mbox registers? */
251 mboxes = (1 << ha->mbx_count) - 1;
252 if (!ha->mcp)
253 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERRROR.\n");
254 else
255 mboxes = ha->mcp->in_mb;
256
257 /* Load return mailbox registers. */
258 ha->flags.mbox_int = 1;
259 ha->mailbox_out[0] = mb0;
260 mboxes >>= 1;
261 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
262
263 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
264 if (IS_QLA2200(ha) && cnt == 8)
265 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
266 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
267 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
268 else if (mboxes & BIT_0)
269 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
270
271 wptr++;
272 mboxes >>= 1;
273 }
274 }
275
276 static void
277 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
278 {
279 static char *event[] =
280 { "Complete", "Request Notification", "Time Extension" };
281 int rval;
282 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
283 uint16_t __iomem *wptr;
284 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
285
286 /* Seed data -- mailbox1 -> mailbox7. */
287 wptr = (uint16_t __iomem *)&reg24->mailbox1;
288 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
289 mb[cnt] = RD_REG_WORD(wptr);
290
291 ql_dbg(ql_dbg_async, vha, 0x5021,
292 "Inter-Driver Communication %s -- "
293 "%04x %04x %04x %04x %04x %04x %04x.\n",
294 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
295 mb[4], mb[5], mb[6]);
296
297 /* Acknowledgement needed? [Notify && non-zero timeout]. */
298 timeout = (descr >> 8) & 0xf;
299 if (aen != MBA_IDC_NOTIFY || !timeout)
300 return;
301
302 ql_dbg(ql_dbg_async, vha, 0x5022,
303 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
304 vha->host_no, event[aen & 0xff], timeout);
305
306 rval = qla2x00_post_idc_ack_work(vha, mb);
307 if (rval != QLA_SUCCESS)
308 ql_log(ql_log_warn, vha, 0x5023,
309 "IDC failed to post ACK.\n");
310 }
311
312 /**
313 * qla2x00_async_event() - Process aynchronous events.
314 * @ha: SCSI driver HA context
315 * @mb: Mailbox registers (0 - 3)
316 */
317 void
318 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
319 {
320 #define LS_UNKNOWN 2
321 static char *link_speeds[] = { "1", "2", "?", "4", "8", "16", "10" };
322 char *link_speed;
323 uint16_t handle_cnt;
324 uint16_t cnt, mbx;
325 uint32_t handles[5];
326 struct qla_hw_data *ha = vha->hw;
327 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
328 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
329 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
330 uint32_t rscn_entry, host_pid;
331 unsigned long flags;
332
333 /* Setup to process RIO completion. */
334 handle_cnt = 0;
335 if (IS_CNA_CAPABLE(ha))
336 goto skip_rio;
337 switch (mb[0]) {
338 case MBA_SCSI_COMPLETION:
339 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
340 handle_cnt = 1;
341 break;
342 case MBA_CMPLT_1_16BIT:
343 handles[0] = mb[1];
344 handle_cnt = 1;
345 mb[0] = MBA_SCSI_COMPLETION;
346 break;
347 case MBA_CMPLT_2_16BIT:
348 handles[0] = mb[1];
349 handles[1] = mb[2];
350 handle_cnt = 2;
351 mb[0] = MBA_SCSI_COMPLETION;
352 break;
353 case MBA_CMPLT_3_16BIT:
354 handles[0] = mb[1];
355 handles[1] = mb[2];
356 handles[2] = mb[3];
357 handle_cnt = 3;
358 mb[0] = MBA_SCSI_COMPLETION;
359 break;
360 case MBA_CMPLT_4_16BIT:
361 handles[0] = mb[1];
362 handles[1] = mb[2];
363 handles[2] = mb[3];
364 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
365 handle_cnt = 4;
366 mb[0] = MBA_SCSI_COMPLETION;
367 break;
368 case MBA_CMPLT_5_16BIT:
369 handles[0] = mb[1];
370 handles[1] = mb[2];
371 handles[2] = mb[3];
372 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
373 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
374 handle_cnt = 5;
375 mb[0] = MBA_SCSI_COMPLETION;
376 break;
377 case MBA_CMPLT_2_32BIT:
378 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
379 handles[1] = le32_to_cpu(
380 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
381 RD_MAILBOX_REG(ha, reg, 6));
382 handle_cnt = 2;
383 mb[0] = MBA_SCSI_COMPLETION;
384 break;
385 default:
386 break;
387 }
388 skip_rio:
389 switch (mb[0]) {
390 case MBA_SCSI_COMPLETION: /* Fast Post */
391 if (!vha->flags.online)
392 break;
393
394 for (cnt = 0; cnt < handle_cnt; cnt++)
395 qla2x00_process_completed_request(vha, rsp->req,
396 handles[cnt]);
397 break;
398
399 case MBA_RESET: /* Reset */
400 ql_dbg(ql_dbg_async, vha, 0x5002,
401 "Asynchronous RESET.\n");
402
403 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
404 break;
405
406 case MBA_SYSTEM_ERR: /* System Error */
407 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha)) ?
408 RD_REG_WORD(&reg24->mailbox7) : 0;
409 ql_log(ql_log_warn, vha, 0x5003,
410 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
411 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
412
413 ha->isp_ops->fw_dump(vha, 1);
414
415 if (IS_FWI2_CAPABLE(ha)) {
416 if (mb[1] == 0 && mb[2] == 0) {
417 ql_log(ql_log_fatal, vha, 0x5004,
418 "Unrecoverable Hardware Error: adapter "
419 "marked OFFLINE!\n");
420 vha->flags.online = 0;
421 vha->device_flags |= DFLG_DEV_FAILED;
422 } else {
423 /* Check to see if MPI timeout occurred */
424 if ((mbx & MBX_3) && (ha->flags.port0))
425 set_bit(MPI_RESET_NEEDED,
426 &vha->dpc_flags);
427
428 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
429 }
430 } else if (mb[1] == 0) {
431 ql_log(ql_log_fatal, vha, 0x5005,
432 "Unrecoverable Hardware Error: adapter marked "
433 "OFFLINE!\n");
434 vha->flags.online = 0;
435 vha->device_flags |= DFLG_DEV_FAILED;
436 } else
437 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
438 break;
439
440 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
441 ql_log(ql_log_warn, vha, 0x5006,
442 "ISP Request Transfer Error (%x).\n", mb[1]);
443
444 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
445 break;
446
447 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
448 ql_log(ql_log_warn, vha, 0x5007,
449 "ISP Response Transfer Error.\n");
450
451 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
452 break;
453
454 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
455 ql_dbg(ql_dbg_async, vha, 0x5008,
456 "Asynchronous WAKEUP_THRES.\n");
457 break;
458
459 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
460 ql_dbg(ql_dbg_async, vha, 0x5009,
461 "LIP occurred (%x).\n", mb[1]);
462
463 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
464 atomic_set(&vha->loop_state, LOOP_DOWN);
465 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
466 qla2x00_mark_all_devices_lost(vha, 1);
467 }
468
469 if (vha->vp_idx) {
470 atomic_set(&vha->vp_state, VP_FAILED);
471 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
472 }
473
474 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
475 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
476
477 vha->flags.management_server_logged_in = 0;
478 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
479 break;
480
481 case MBA_LOOP_UP: /* Loop Up Event */
482 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
483 link_speed = link_speeds[0];
484 ha->link_data_rate = PORT_SPEED_1GB;
485 } else {
486 link_speed = link_speeds[LS_UNKNOWN];
487 if (mb[1] < 6)
488 link_speed = link_speeds[mb[1]];
489 else if (mb[1] == 0x13)
490 link_speed = link_speeds[6];
491 ha->link_data_rate = mb[1];
492 }
493
494 ql_dbg(ql_dbg_async, vha, 0x500a,
495 "LOOP UP detected (%s Gbps).\n", link_speed);
496
497 vha->flags.management_server_logged_in = 0;
498 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
499 break;
500
501 case MBA_LOOP_DOWN: /* Loop Down Event */
502 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
503 ? RD_REG_WORD(&reg24->mailbox4) : 0;
504 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
505 ql_dbg(ql_dbg_async, vha, 0x500b,
506 "LOOP DOWN detected (%x %x %x %x).\n",
507 mb[1], mb[2], mb[3], mbx);
508
509 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
510 atomic_set(&vha->loop_state, LOOP_DOWN);
511 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
512 vha->device_flags |= DFLG_NO_CABLE;
513 qla2x00_mark_all_devices_lost(vha, 1);
514 }
515
516 if (vha->vp_idx) {
517 atomic_set(&vha->vp_state, VP_FAILED);
518 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
519 }
520
521 vha->flags.management_server_logged_in = 0;
522 ha->link_data_rate = PORT_SPEED_UNKNOWN;
523 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
524 break;
525
526 case MBA_LIP_RESET: /* LIP reset occurred */
527 ql_dbg(ql_dbg_async, vha, 0x500c,
528 "LIP reset occurred (%x).\n", mb[1]);
529
530 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
531 atomic_set(&vha->loop_state, LOOP_DOWN);
532 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
533 qla2x00_mark_all_devices_lost(vha, 1);
534 }
535
536 if (vha->vp_idx) {
537 atomic_set(&vha->vp_state, VP_FAILED);
538 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
539 }
540
541 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
542
543 ha->operating_mode = LOOP;
544 vha->flags.management_server_logged_in = 0;
545 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
546 break;
547
548 /* case MBA_DCBX_COMPLETE: */
549 case MBA_POINT_TO_POINT: /* Point-to-Point */
550 if (IS_QLA2100(ha))
551 break;
552
553 if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA8031(ha)) {
554 ql_dbg(ql_dbg_async, vha, 0x500d,
555 "DCBX Completed -- %04x %04x %04x.\n",
556 mb[1], mb[2], mb[3]);
557 if (ha->notify_dcbx_comp)
558 complete(&ha->dcbx_comp);
559
560 } else
561 ql_dbg(ql_dbg_async, vha, 0x500e,
562 "Asynchronous P2P MODE received.\n");
563
564 /*
565 * Until there's a transition from loop down to loop up, treat
566 * this as loop down only.
567 */
568 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
569 atomic_set(&vha->loop_state, LOOP_DOWN);
570 if (!atomic_read(&vha->loop_down_timer))
571 atomic_set(&vha->loop_down_timer,
572 LOOP_DOWN_TIME);
573 qla2x00_mark_all_devices_lost(vha, 1);
574 }
575
576 if (vha->vp_idx) {
577 atomic_set(&vha->vp_state, VP_FAILED);
578 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
579 }
580
581 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
582 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
583
584 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
585 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
586
587 ha->flags.gpsc_supported = 1;
588 vha->flags.management_server_logged_in = 0;
589 break;
590
591 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
592 if (IS_QLA2100(ha))
593 break;
594
595 ql_dbg(ql_dbg_async, vha, 0x500f,
596 "Configuration change detected: value=%x.\n", mb[1]);
597
598 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
599 atomic_set(&vha->loop_state, LOOP_DOWN);
600 if (!atomic_read(&vha->loop_down_timer))
601 atomic_set(&vha->loop_down_timer,
602 LOOP_DOWN_TIME);
603 qla2x00_mark_all_devices_lost(vha, 1);
604 }
605
606 if (vha->vp_idx) {
607 atomic_set(&vha->vp_state, VP_FAILED);
608 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
609 }
610
611 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
612 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
613 break;
614
615 case MBA_PORT_UPDATE: /* Port database update */
616 /*
617 * Handle only global and vn-port update events
618 *
619 * Relevant inputs:
620 * mb[1] = N_Port handle of changed port
621 * OR 0xffff for global event
622 * mb[2] = New login state
623 * 7 = Port logged out
624 * mb[3] = LSB is vp_idx, 0xff = all vps
625 *
626 * Skip processing if:
627 * Event is global, vp_idx is NOT all vps,
628 * vp_idx does not match
629 * Event is not global, vp_idx does not match
630 */
631 if (IS_QLA2XXX_MIDTYPE(ha) &&
632 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
633 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
634 break;
635
636 /* Global event -- port logout or port unavailable. */
637 if (mb[1] == 0xffff && mb[2] == 0x7) {
638 ql_dbg(ql_dbg_async, vha, 0x5010,
639 "Port unavailable %04x %04x %04x.\n",
640 mb[1], mb[2], mb[3]);
641
642 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
643 atomic_set(&vha->loop_state, LOOP_DOWN);
644 atomic_set(&vha->loop_down_timer,
645 LOOP_DOWN_TIME);
646 vha->device_flags |= DFLG_NO_CABLE;
647 qla2x00_mark_all_devices_lost(vha, 1);
648 }
649
650 if (vha->vp_idx) {
651 atomic_set(&vha->vp_state, VP_FAILED);
652 fc_vport_set_state(vha->fc_vport,
653 FC_VPORT_FAILED);
654 qla2x00_mark_all_devices_lost(vha, 1);
655 }
656
657 vha->flags.management_server_logged_in = 0;
658 ha->link_data_rate = PORT_SPEED_UNKNOWN;
659 break;
660 }
661
662 /*
663 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
664 * event etc. earlier indicating loop is down) then process
665 * it. Otherwise ignore it and Wait for RSCN to come in.
666 */
667 atomic_set(&vha->loop_down_timer, 0);
668 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
669 atomic_read(&vha->loop_state) != LOOP_DEAD) {
670 ql_dbg(ql_dbg_async, vha, 0x5011,
671 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
672 mb[1], mb[2], mb[3]);
673 break;
674 }
675
676 ql_dbg(ql_dbg_async, vha, 0x5012,
677 "Port database changed %04x %04x %04x.\n",
678 mb[1], mb[2], mb[3]);
679
680 /*
681 * Mark all devices as missing so we will login again.
682 */
683 atomic_set(&vha->loop_state, LOOP_UP);
684
685 qla2x00_mark_all_devices_lost(vha, 1);
686
687 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
688 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
689 break;
690
691 case MBA_RSCN_UPDATE: /* State Change Registration */
692 /* Check if the Vport has issued a SCR */
693 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
694 break;
695 /* Only handle SCNs for our Vport index. */
696 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
697 break;
698
699 ql_dbg(ql_dbg_async, vha, 0x5013,
700 "RSCN database changed -- %04x %04x %04x.\n",
701 mb[1], mb[2], mb[3]);
702
703 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
704 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
705 | vha->d_id.b.al_pa;
706 if (rscn_entry == host_pid) {
707 ql_dbg(ql_dbg_async, vha, 0x5014,
708 "Ignoring RSCN update to local host "
709 "port ID (%06x).\n", host_pid);
710 break;
711 }
712
713 /* Ignore reserved bits from RSCN-payload. */
714 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
715
716 atomic_set(&vha->loop_down_timer, 0);
717 vha->flags.management_server_logged_in = 0;
718
719 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
720 set_bit(RSCN_UPDATE, &vha->dpc_flags);
721 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
722 break;
723
724 /* case MBA_RIO_RESPONSE: */
725 case MBA_ZIO_RESPONSE:
726 ql_dbg(ql_dbg_async, vha, 0x5015,
727 "[R|Z]IO update completion.\n");
728
729 if (IS_FWI2_CAPABLE(ha))
730 qla24xx_process_response_queue(vha, rsp);
731 else
732 qla2x00_process_response_queue(rsp);
733 break;
734
735 case MBA_DISCARD_RND_FRAME:
736 ql_dbg(ql_dbg_async, vha, 0x5016,
737 "Discard RND Frame -- %04x %04x %04x.\n",
738 mb[1], mb[2], mb[3]);
739 break;
740
741 case MBA_TRACE_NOTIFICATION:
742 ql_dbg(ql_dbg_async, vha, 0x5017,
743 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
744 break;
745
746 case MBA_ISP84XX_ALERT:
747 ql_dbg(ql_dbg_async, vha, 0x5018,
748 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
749 mb[1], mb[2], mb[3]);
750
751 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
752 switch (mb[1]) {
753 case A84_PANIC_RECOVERY:
754 ql_log(ql_log_info, vha, 0x5019,
755 "Alert 84XX: panic recovery %04x %04x.\n",
756 mb[2], mb[3]);
757 break;
758 case A84_OP_LOGIN_COMPLETE:
759 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
760 ql_log(ql_log_info, vha, 0x501a,
761 "Alert 84XX: firmware version %x.\n",
762 ha->cs84xx->op_fw_version);
763 break;
764 case A84_DIAG_LOGIN_COMPLETE:
765 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
766 ql_log(ql_log_info, vha, 0x501b,
767 "Alert 84XX: diagnostic firmware version %x.\n",
768 ha->cs84xx->diag_fw_version);
769 break;
770 case A84_GOLD_LOGIN_COMPLETE:
771 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
772 ha->cs84xx->fw_update = 1;
773 ql_log(ql_log_info, vha, 0x501c,
774 "Alert 84XX: gold firmware version %x.\n",
775 ha->cs84xx->gold_fw_version);
776 break;
777 default:
778 ql_log(ql_log_warn, vha, 0x501d,
779 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
780 mb[1], mb[2], mb[3]);
781 }
782 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
783 break;
784 case MBA_DCBX_START:
785 ql_dbg(ql_dbg_async, vha, 0x501e,
786 "DCBX Started -- %04x %04x %04x.\n",
787 mb[1], mb[2], mb[3]);
788 break;
789 case MBA_DCBX_PARAM_UPDATE:
790 ql_dbg(ql_dbg_async, vha, 0x501f,
791 "DCBX Parameters Updated -- %04x %04x %04x.\n",
792 mb[1], mb[2], mb[3]);
793 break;
794 case MBA_FCF_CONF_ERR:
795 ql_dbg(ql_dbg_async, vha, 0x5020,
796 "FCF Configuration Error -- %04x %04x %04x.\n",
797 mb[1], mb[2], mb[3]);
798 break;
799 case MBA_IDC_COMPLETE:
800 case MBA_IDC_NOTIFY:
801 case MBA_IDC_TIME_EXT:
802 qla81xx_idc_event(vha, mb[0], mb[1]);
803 break;
804 default:
805 ql_dbg(ql_dbg_async, vha, 0x5057,
806 "Unknown AEN:%04x %04x %04x %04x\n",
807 mb[0], mb[1], mb[2], mb[3]);
808 }
809
810 if (!vha->vp_idx && ha->num_vhosts)
811 qla2x00_alert_all_vps(rsp, mb);
812 }
813
814 /**
815 * qla2x00_process_completed_request() - Process a Fast Post response.
816 * @ha: SCSI driver HA context
817 * @index: SRB index
818 */
819 static void
820 qla2x00_process_completed_request(struct scsi_qla_host *vha,
821 struct req_que *req, uint32_t index)
822 {
823 srb_t *sp;
824 struct qla_hw_data *ha = vha->hw;
825
826 /* Validate handle. */
827 if (index >= MAX_OUTSTANDING_COMMANDS) {
828 ql_log(ql_log_warn, vha, 0x3014,
829 "Invalid SCSI command index (%x).\n", index);
830
831 if (IS_QLA82XX(ha))
832 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
833 else
834 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
835 return;
836 }
837
838 sp = req->outstanding_cmds[index];
839 if (sp) {
840 /* Free outstanding command slot. */
841 req->outstanding_cmds[index] = NULL;
842
843 /* Save ISP completion status */
844 sp->done(ha, sp, DID_OK << 16);
845 } else {
846 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
847
848 if (IS_QLA82XX(ha))
849 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
850 else
851 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
852 }
853 }
854
855 static srb_t *
856 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
857 struct req_que *req, void *iocb)
858 {
859 struct qla_hw_data *ha = vha->hw;
860 sts_entry_t *pkt = iocb;
861 srb_t *sp = NULL;
862 uint16_t index;
863
864 index = LSW(pkt->handle);
865 if (index >= MAX_OUTSTANDING_COMMANDS) {
866 ql_log(ql_log_warn, vha, 0x5031,
867 "Invalid command index (%x).\n", index);
868 if (IS_QLA82XX(ha))
869 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
870 else
871 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
872 goto done;
873 }
874 sp = req->outstanding_cmds[index];
875 if (!sp) {
876 ql_log(ql_log_warn, vha, 0x5032,
877 "Invalid completion handle (%x) -- timed-out.\n", index);
878 return sp;
879 }
880 if (sp->handle != index) {
881 ql_log(ql_log_warn, vha, 0x5033,
882 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
883 return NULL;
884 }
885
886 req->outstanding_cmds[index] = NULL;
887
888 done:
889 return sp;
890 }
891
892 static void
893 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
894 struct mbx_entry *mbx)
895 {
896 const char func[] = "MBX-IOCB";
897 const char *type;
898 fc_port_t *fcport;
899 srb_t *sp;
900 struct srb_iocb *lio;
901 uint16_t *data;
902 uint16_t status;
903
904 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
905 if (!sp)
906 return;
907
908 lio = &sp->u.iocb_cmd;
909 type = sp->name;
910 fcport = sp->fcport;
911 data = lio->u.logio.data;
912
913 data[0] = MBS_COMMAND_ERROR;
914 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
915 QLA_LOGIO_LOGIN_RETRIED : 0;
916 if (mbx->entry_status) {
917 ql_dbg(ql_dbg_async, vha, 0x5043,
918 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
919 "entry-status=%x status=%x state-flag=%x "
920 "status-flags=%x.\n", type, sp->handle,
921 fcport->d_id.b.domain, fcport->d_id.b.area,
922 fcport->d_id.b.al_pa, mbx->entry_status,
923 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
924 le16_to_cpu(mbx->status_flags));
925
926 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
927 (uint8_t *)mbx, sizeof(*mbx));
928
929 goto logio_done;
930 }
931
932 status = le16_to_cpu(mbx->status);
933 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
934 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
935 status = 0;
936 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
937 ql_dbg(ql_dbg_async, vha, 0x5045,
938 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
939 type, sp->handle, fcport->d_id.b.domain,
940 fcport->d_id.b.area, fcport->d_id.b.al_pa,
941 le16_to_cpu(mbx->mb1));
942
943 data[0] = MBS_COMMAND_COMPLETE;
944 if (sp->type == SRB_LOGIN_CMD) {
945 fcport->port_type = FCT_TARGET;
946 if (le16_to_cpu(mbx->mb1) & BIT_0)
947 fcport->port_type = FCT_INITIATOR;
948 else if (le16_to_cpu(mbx->mb1) & BIT_1)
949 fcport->flags |= FCF_FCP2_DEVICE;
950 }
951 goto logio_done;
952 }
953
954 data[0] = le16_to_cpu(mbx->mb0);
955 switch (data[0]) {
956 case MBS_PORT_ID_USED:
957 data[1] = le16_to_cpu(mbx->mb1);
958 break;
959 case MBS_LOOP_ID_USED:
960 break;
961 default:
962 data[0] = MBS_COMMAND_ERROR;
963 break;
964 }
965
966 ql_log(ql_log_warn, vha, 0x5046,
967 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
968 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
969 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
970 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
971 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
972 le16_to_cpu(mbx->mb7));
973
974 logio_done:
975 sp->done(vha, sp, 0);
976 }
977
978 static void
979 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
980 sts_entry_t *pkt, int iocb_type)
981 {
982 const char func[] = "CT_IOCB";
983 const char *type;
984 srb_t *sp;
985 struct fc_bsg_job *bsg_job;
986 uint16_t comp_status;
987 int res;
988
989 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
990 if (!sp)
991 return;
992
993 bsg_job = sp->u.bsg_job;
994
995 type = "ct pass-through";
996
997 comp_status = le16_to_cpu(pkt->comp_status);
998
999 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1000 * fc payload to the caller
1001 */
1002 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1003 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1004
1005 if (comp_status != CS_COMPLETE) {
1006 if (comp_status == CS_DATA_UNDERRUN) {
1007 res = DID_OK << 16;
1008 bsg_job->reply->reply_payload_rcv_len =
1009 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1010
1011 ql_log(ql_log_warn, vha, 0x5048,
1012 "CT pass-through-%s error "
1013 "comp_status-status=0x%x total_byte = 0x%x.\n",
1014 type, comp_status,
1015 bsg_job->reply->reply_payload_rcv_len);
1016 } else {
1017 ql_log(ql_log_warn, vha, 0x5049,
1018 "CT pass-through-%s error "
1019 "comp_status-status=0x%x.\n", type, comp_status);
1020 res = DID_ERROR << 16;
1021 bsg_job->reply->reply_payload_rcv_len = 0;
1022 }
1023 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1024 (uint8_t *)pkt, sizeof(*pkt));
1025 } else {
1026 res = DID_OK << 16;
1027 bsg_job->reply->reply_payload_rcv_len =
1028 bsg_job->reply_payload.payload_len;
1029 bsg_job->reply_len = 0;
1030 }
1031
1032 sp->done(vha, sp, res);
1033 }
1034
1035 static void
1036 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1037 struct sts_entry_24xx *pkt, int iocb_type)
1038 {
1039 const char func[] = "ELS_CT_IOCB";
1040 const char *type;
1041 srb_t *sp;
1042 struct fc_bsg_job *bsg_job;
1043 uint16_t comp_status;
1044 uint32_t fw_status[3];
1045 uint8_t* fw_sts_ptr;
1046 int res;
1047
1048 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1049 if (!sp)
1050 return;
1051 bsg_job = sp->u.bsg_job;
1052
1053 type = NULL;
1054 switch (sp->type) {
1055 case SRB_ELS_CMD_RPT:
1056 case SRB_ELS_CMD_HST:
1057 type = "els";
1058 break;
1059 case SRB_CT_CMD:
1060 type = "ct pass-through";
1061 break;
1062 default:
1063 ql_dbg(ql_dbg_user, vha, 0x503e,
1064 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1065 return;
1066 }
1067
1068 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1069 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1070 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1071
1072 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1073 * fc payload to the caller
1074 */
1075 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1076 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1077
1078 if (comp_status != CS_COMPLETE) {
1079 if (comp_status == CS_DATA_UNDERRUN) {
1080 res = DID_OK << 16;
1081 bsg_job->reply->reply_payload_rcv_len =
1082 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1083
1084 ql_dbg(ql_dbg_user, vha, 0x503f,
1085 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1086 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1087 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1088 le16_to_cpu(((struct els_sts_entry_24xx *)
1089 pkt)->total_byte_count));
1090 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1091 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1092 }
1093 else {
1094 ql_dbg(ql_dbg_user, vha, 0x5040,
1095 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1096 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1097 type, sp->handle, comp_status,
1098 le16_to_cpu(((struct els_sts_entry_24xx *)
1099 pkt)->error_subcode_1),
1100 le16_to_cpu(((struct els_sts_entry_24xx *)
1101 pkt)->error_subcode_2));
1102 res = DID_ERROR << 16;
1103 bsg_job->reply->reply_payload_rcv_len = 0;
1104 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1105 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1106 }
1107 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1108 (uint8_t *)pkt, sizeof(*pkt));
1109 }
1110 else {
1111 res = DID_OK << 16;
1112 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1113 bsg_job->reply_len = 0;
1114 }
1115
1116 sp->done(vha, sp, res);
1117 }
1118
1119 static void
1120 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1121 struct logio_entry_24xx *logio)
1122 {
1123 const char func[] = "LOGIO-IOCB";
1124 const char *type;
1125 fc_port_t *fcport;
1126 srb_t *sp;
1127 struct srb_iocb *lio;
1128 uint16_t *data;
1129 uint32_t iop[2];
1130
1131 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1132 if (!sp)
1133 return;
1134
1135 lio = &sp->u.iocb_cmd;
1136 type = sp->name;
1137 fcport = sp->fcport;
1138 data = lio->u.logio.data;
1139
1140 data[0] = MBS_COMMAND_ERROR;
1141 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1142 QLA_LOGIO_LOGIN_RETRIED : 0;
1143 if (logio->entry_status) {
1144 ql_log(ql_log_warn, fcport->vha, 0x5034,
1145 "Async-%s error entry - hdl=%x"
1146 "portid=%02x%02x%02x entry-status=%x.\n",
1147 type, sp->handle, fcport->d_id.b.domain,
1148 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1149 logio->entry_status);
1150 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1151 (uint8_t *)logio, sizeof(*logio));
1152
1153 goto logio_done;
1154 }
1155
1156 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1157 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1158 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1159 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1160 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1161 le32_to_cpu(logio->io_parameter[0]));
1162
1163 data[0] = MBS_COMMAND_COMPLETE;
1164 if (sp->type != SRB_LOGIN_CMD)
1165 goto logio_done;
1166
1167 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1168 if (iop[0] & BIT_4) {
1169 fcport->port_type = FCT_TARGET;
1170 if (iop[0] & BIT_8)
1171 fcport->flags |= FCF_FCP2_DEVICE;
1172 } else if (iop[0] & BIT_5)
1173 fcport->port_type = FCT_INITIATOR;
1174
1175 if (logio->io_parameter[7] || logio->io_parameter[8])
1176 fcport->supported_classes |= FC_COS_CLASS2;
1177 if (logio->io_parameter[9] || logio->io_parameter[10])
1178 fcport->supported_classes |= FC_COS_CLASS3;
1179
1180 goto logio_done;
1181 }
1182
1183 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1184 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1185 switch (iop[0]) {
1186 case LSC_SCODE_PORTID_USED:
1187 data[0] = MBS_PORT_ID_USED;
1188 data[1] = LSW(iop[1]);
1189 break;
1190 case LSC_SCODE_NPORT_USED:
1191 data[0] = MBS_LOOP_ID_USED;
1192 break;
1193 default:
1194 data[0] = MBS_COMMAND_ERROR;
1195 break;
1196 }
1197
1198 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1199 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1200 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1201 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1202 le16_to_cpu(logio->comp_status),
1203 le32_to_cpu(logio->io_parameter[0]),
1204 le32_to_cpu(logio->io_parameter[1]));
1205
1206 logio_done:
1207 sp->done(vha, sp, 0);
1208 }
1209
1210 static void
1211 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1212 struct tsk_mgmt_entry *tsk)
1213 {
1214 const char func[] = "TMF-IOCB";
1215 const char *type;
1216 fc_port_t *fcport;
1217 srb_t *sp;
1218 struct srb_iocb *iocb;
1219 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1220 int error = 1;
1221
1222 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1223 if (!sp)
1224 return;
1225
1226 iocb = &sp->u.iocb_cmd;
1227 type = sp->name;
1228 fcport = sp->fcport;
1229
1230 if (sts->entry_status) {
1231 ql_log(ql_log_warn, fcport->vha, 0x5038,
1232 "Async-%s error - hdl=%x entry-status(%x).\n",
1233 type, sp->handle, sts->entry_status);
1234 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1235 ql_log(ql_log_warn, fcport->vha, 0x5039,
1236 "Async-%s error - hdl=%x completion status(%x).\n",
1237 type, sp->handle, sts->comp_status);
1238 } else if (!(le16_to_cpu(sts->scsi_status) &
1239 SS_RESPONSE_INFO_LEN_VALID)) {
1240 ql_log(ql_log_warn, fcport->vha, 0x503a,
1241 "Async-%s error - hdl=%x no response info(%x).\n",
1242 type, sp->handle, sts->scsi_status);
1243 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1244 ql_log(ql_log_warn, fcport->vha, 0x503b,
1245 "Async-%s error - hdl=%x not enough response(%d).\n",
1246 type, sp->handle, sts->rsp_data_len);
1247 } else if (sts->data[3]) {
1248 ql_log(ql_log_warn, fcport->vha, 0x503c,
1249 "Async-%s error - hdl=%x response(%x).\n",
1250 type, sp->handle, sts->data[3]);
1251 } else {
1252 error = 0;
1253 }
1254
1255 if (error) {
1256 iocb->u.tmf.data = error;
1257 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1258 (uint8_t *)sts, sizeof(*sts));
1259 }
1260
1261 sp->done(vha, sp, 0);
1262 }
1263
1264 /**
1265 * qla2x00_process_response_queue() - Process response queue entries.
1266 * @ha: SCSI driver HA context
1267 */
1268 void
1269 qla2x00_process_response_queue(struct rsp_que *rsp)
1270 {
1271 struct scsi_qla_host *vha;
1272 struct qla_hw_data *ha = rsp->hw;
1273 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1274 sts_entry_t *pkt;
1275 uint16_t handle_cnt;
1276 uint16_t cnt;
1277
1278 vha = pci_get_drvdata(ha->pdev);
1279
1280 if (!vha->flags.online)
1281 return;
1282
1283 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1284 pkt = (sts_entry_t *)rsp->ring_ptr;
1285
1286 rsp->ring_index++;
1287 if (rsp->ring_index == rsp->length) {
1288 rsp->ring_index = 0;
1289 rsp->ring_ptr = rsp->ring;
1290 } else {
1291 rsp->ring_ptr++;
1292 }
1293
1294 if (pkt->entry_status != 0) {
1295 qla2x00_error_entry(vha, rsp, pkt);
1296 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1297 wmb();
1298 continue;
1299 }
1300
1301 switch (pkt->entry_type) {
1302 case STATUS_TYPE:
1303 qla2x00_status_entry(vha, rsp, pkt);
1304 break;
1305 case STATUS_TYPE_21:
1306 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1307 for (cnt = 0; cnt < handle_cnt; cnt++) {
1308 qla2x00_process_completed_request(vha, rsp->req,
1309 ((sts21_entry_t *)pkt)->handle[cnt]);
1310 }
1311 break;
1312 case STATUS_TYPE_22:
1313 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1314 for (cnt = 0; cnt < handle_cnt; cnt++) {
1315 qla2x00_process_completed_request(vha, rsp->req,
1316 ((sts22_entry_t *)pkt)->handle[cnt]);
1317 }
1318 break;
1319 case STATUS_CONT_TYPE:
1320 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1321 break;
1322 case MBX_IOCB_TYPE:
1323 qla2x00_mbx_iocb_entry(vha, rsp->req,
1324 (struct mbx_entry *)pkt);
1325 break;
1326 case CT_IOCB_TYPE:
1327 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1328 break;
1329 default:
1330 /* Type Not Supported. */
1331 ql_log(ql_log_warn, vha, 0x504a,
1332 "Received unknown response pkt type %x "
1333 "entry status=%x.\n",
1334 pkt->entry_type, pkt->entry_status);
1335 break;
1336 }
1337 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1338 wmb();
1339 }
1340
1341 /* Adjust ring index */
1342 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1343 }
1344
1345 static inline void
1346 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1347 uint32_t sense_len, struct rsp_que *rsp, int res)
1348 {
1349 struct scsi_qla_host *vha = sp->fcport->vha;
1350 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1351 uint32_t track_sense_len;
1352
1353 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1354 sense_len = SCSI_SENSE_BUFFERSIZE;
1355
1356 SET_CMD_SENSE_LEN(sp, sense_len);
1357 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1358 track_sense_len = sense_len;
1359
1360 if (sense_len > par_sense_len)
1361 sense_len = par_sense_len;
1362
1363 memcpy(cp->sense_buffer, sense_data, sense_len);
1364
1365 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1366 track_sense_len -= sense_len;
1367 SET_CMD_SENSE_LEN(sp, track_sense_len);
1368
1369 if (track_sense_len != 0) {
1370 rsp->status_srb = sp;
1371 cp->result = res;
1372 }
1373
1374 if (sense_len) {
1375 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1376 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1377 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1378 cp);
1379 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1380 cp->sense_buffer, sense_len);
1381 }
1382 }
1383
1384 struct scsi_dif_tuple {
1385 __be16 guard; /* Checksum */
1386 __be16 app_tag; /* APPL identifer */
1387 __be32 ref_tag; /* Target LBA or indirect LBA */
1388 };
1389
1390 /*
1391 * Checks the guard or meta-data for the type of error
1392 * detected by the HBA. In case of errors, we set the
1393 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1394 * to indicate to the kernel that the HBA detected error.
1395 */
1396 static inline int
1397 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1398 {
1399 struct scsi_qla_host *vha = sp->fcport->vha;
1400 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1401 uint8_t *ap = &sts24->data[12];
1402 uint8_t *ep = &sts24->data[20];
1403 uint32_t e_ref_tag, a_ref_tag;
1404 uint16_t e_app_tag, a_app_tag;
1405 uint16_t e_guard, a_guard;
1406
1407 /*
1408 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1409 * would make guard field appear at offset 2
1410 */
1411 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1412 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1413 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1414 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1415 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1416 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1417
1418 ql_dbg(ql_dbg_io, vha, 0x3023,
1419 "iocb(s) %p Returned STATUS.\n", sts24);
1420
1421 ql_dbg(ql_dbg_io, vha, 0x3024,
1422 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1423 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1424 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1425 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1426 a_app_tag, e_app_tag, a_guard, e_guard);
1427
1428 /*
1429 * Ignore sector if:
1430 * For type 3: ref & app tag is all 'f's
1431 * For type 0,1,2: app tag is all 'f's
1432 */
1433 if ((a_app_tag == 0xffff) &&
1434 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1435 (a_ref_tag == 0xffffffff))) {
1436 uint32_t blocks_done, resid;
1437 sector_t lba_s = scsi_get_lba(cmd);
1438
1439 /* 2TB boundary case covered automatically with this */
1440 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1441
1442 resid = scsi_bufflen(cmd) - (blocks_done *
1443 cmd->device->sector_size);
1444
1445 scsi_set_resid(cmd, resid);
1446 cmd->result = DID_OK << 16;
1447
1448 /* Update protection tag */
1449 if (scsi_prot_sg_count(cmd)) {
1450 uint32_t i, j = 0, k = 0, num_ent;
1451 struct scatterlist *sg;
1452 struct sd_dif_tuple *spt;
1453
1454 /* Patch the corresponding protection tags */
1455 scsi_for_each_prot_sg(cmd, sg,
1456 scsi_prot_sg_count(cmd), i) {
1457 num_ent = sg_dma_len(sg) / 8;
1458 if (k + num_ent < blocks_done) {
1459 k += num_ent;
1460 continue;
1461 }
1462 j = blocks_done - k - 1;
1463 k = blocks_done;
1464 break;
1465 }
1466
1467 if (k != blocks_done) {
1468 ql_log(ql_log_warn, vha, 0x302f,
1469 "unexpected tag values tag:lba=%x:%llx)\n",
1470 e_ref_tag, (unsigned long long)lba_s);
1471 return 1;
1472 }
1473
1474 spt = page_address(sg_page(sg)) + sg->offset;
1475 spt += j;
1476
1477 spt->app_tag = 0xffff;
1478 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1479 spt->ref_tag = 0xffffffff;
1480 }
1481
1482 return 0;
1483 }
1484
1485 /* check guard */
1486 if (e_guard != a_guard) {
1487 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1488 0x10, 0x1);
1489 set_driver_byte(cmd, DRIVER_SENSE);
1490 set_host_byte(cmd, DID_ABORT);
1491 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1492 return 1;
1493 }
1494
1495 /* check ref tag */
1496 if (e_ref_tag != a_ref_tag) {
1497 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1498 0x10, 0x3);
1499 set_driver_byte(cmd, DRIVER_SENSE);
1500 set_host_byte(cmd, DID_ABORT);
1501 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1502 return 1;
1503 }
1504
1505 /* check appl tag */
1506 if (e_app_tag != a_app_tag) {
1507 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1508 0x10, 0x2);
1509 set_driver_byte(cmd, DRIVER_SENSE);
1510 set_host_byte(cmd, DID_ABORT);
1511 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1512 return 1;
1513 }
1514
1515 return 1;
1516 }
1517
1518 /**
1519 * qla2x00_status_entry() - Process a Status IOCB entry.
1520 * @ha: SCSI driver HA context
1521 * @pkt: Entry pointer
1522 */
1523 static void
1524 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1525 {
1526 srb_t *sp;
1527 fc_port_t *fcport;
1528 struct scsi_cmnd *cp;
1529 sts_entry_t *sts;
1530 struct sts_entry_24xx *sts24;
1531 uint16_t comp_status;
1532 uint16_t scsi_status;
1533 uint16_t ox_id;
1534 uint8_t lscsi_status;
1535 int32_t resid;
1536 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1537 fw_resid_len;
1538 uint8_t *rsp_info, *sense_data;
1539 struct qla_hw_data *ha = vha->hw;
1540 uint32_t handle;
1541 uint16_t que;
1542 struct req_que *req;
1543 int logit = 1;
1544 int res = 0;
1545
1546 sts = (sts_entry_t *) pkt;
1547 sts24 = (struct sts_entry_24xx *) pkt;
1548 if (IS_FWI2_CAPABLE(ha)) {
1549 comp_status = le16_to_cpu(sts24->comp_status);
1550 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1551 } else {
1552 comp_status = le16_to_cpu(sts->comp_status);
1553 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1554 }
1555 handle = (uint32_t) LSW(sts->handle);
1556 que = MSW(sts->handle);
1557 req = ha->req_q_map[que];
1558
1559 /* Fast path completion. */
1560 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1561 qla2x00_process_completed_request(vha, req, handle);
1562
1563 return;
1564 }
1565
1566 /* Validate handle. */
1567 if (handle < MAX_OUTSTANDING_COMMANDS) {
1568 sp = req->outstanding_cmds[handle];
1569 req->outstanding_cmds[handle] = NULL;
1570 } else
1571 sp = NULL;
1572
1573 if (sp == NULL) {
1574 ql_dbg(ql_dbg_io, vha, 0x3017,
1575 "Invalid status handle (0x%x).\n", sts->handle);
1576
1577 if (IS_QLA82XX(ha))
1578 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1579 else
1580 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1581 qla2xxx_wake_dpc(vha);
1582 return;
1583 }
1584 cp = GET_CMD_SP(sp);
1585 if (cp == NULL) {
1586 ql_dbg(ql_dbg_io, vha, 0x3018,
1587 "Command already returned (0x%x/%p).\n",
1588 sts->handle, sp);
1589
1590 return;
1591 }
1592
1593 lscsi_status = scsi_status & STATUS_MASK;
1594
1595 fcport = sp->fcport;
1596
1597 ox_id = 0;
1598 sense_len = par_sense_len = rsp_info_len = resid_len =
1599 fw_resid_len = 0;
1600 if (IS_FWI2_CAPABLE(ha)) {
1601 if (scsi_status & SS_SENSE_LEN_VALID)
1602 sense_len = le32_to_cpu(sts24->sense_len);
1603 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1604 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1605 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1606 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1607 if (comp_status == CS_DATA_UNDERRUN)
1608 fw_resid_len = le32_to_cpu(sts24->residual_len);
1609 rsp_info = sts24->data;
1610 sense_data = sts24->data;
1611 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1612 ox_id = le16_to_cpu(sts24->ox_id);
1613 par_sense_len = sizeof(sts24->data);
1614 } else {
1615 if (scsi_status & SS_SENSE_LEN_VALID)
1616 sense_len = le16_to_cpu(sts->req_sense_length);
1617 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1618 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1619 resid_len = le32_to_cpu(sts->residual_length);
1620 rsp_info = sts->rsp_info;
1621 sense_data = sts->req_sense_data;
1622 par_sense_len = sizeof(sts->req_sense_data);
1623 }
1624
1625 /* Check for any FCP transport errors. */
1626 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1627 /* Sense data lies beyond any FCP RESPONSE data. */
1628 if (IS_FWI2_CAPABLE(ha)) {
1629 sense_data += rsp_info_len;
1630 par_sense_len -= rsp_info_len;
1631 }
1632 if (rsp_info_len > 3 && rsp_info[3]) {
1633 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
1634 "FCP I/O protocol failure (0x%x/0x%x).\n",
1635 rsp_info_len, rsp_info[3]);
1636
1637 res = 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 res = 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 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
1665 "Mid-layer underflow "
1666 "detected (0x%x of 0x%x bytes).\n",
1667 resid, scsi_bufflen(cp));
1668
1669 res = DID_ERROR << 16;
1670 break;
1671 }
1672 }
1673 res = DID_OK << 16 | lscsi_status;
1674
1675 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1676 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
1677 "QUEUE FULL detected.\n");
1678 break;
1679 }
1680 logit = 0;
1681 if (lscsi_status != SS_CHECK_CONDITION)
1682 break;
1683
1684 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1685 if (!(scsi_status & SS_SENSE_LEN_VALID))
1686 break;
1687
1688 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1689 rsp, res);
1690 break;
1691
1692 case CS_DATA_UNDERRUN:
1693 /* Use F/W calculated residual length. */
1694 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1695 scsi_set_resid(cp, resid);
1696 if (scsi_status & SS_RESIDUAL_UNDER) {
1697 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1698 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
1699 "Dropped frame(s) detected "
1700 "(0x%x of 0x%x bytes).\n",
1701 resid, scsi_bufflen(cp));
1702
1703 res = DID_ERROR << 16 | lscsi_status;
1704 goto check_scsi_status;
1705 }
1706
1707 if (!lscsi_status &&
1708 ((unsigned)(scsi_bufflen(cp) - resid) <
1709 cp->underflow)) {
1710 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
1711 "Mid-layer underflow "
1712 "detected (0x%x of 0x%x bytes).\n",
1713 resid, scsi_bufflen(cp));
1714
1715 res = DID_ERROR << 16;
1716 break;
1717 }
1718 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
1719 lscsi_status != SAM_STAT_BUSY) {
1720 /*
1721 * scsi status of task set and busy are considered to be
1722 * task not completed.
1723 */
1724
1725 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
1726 "Dropped frame(s) detected (0x%x "
1727 "of 0x%x bytes).\n", resid,
1728 scsi_bufflen(cp));
1729
1730 res = DID_ERROR << 16 | lscsi_status;
1731 goto check_scsi_status;
1732 } else {
1733 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
1734 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
1735 scsi_status, lscsi_status);
1736 }
1737
1738 res = DID_OK << 16 | lscsi_status;
1739 logit = 0;
1740
1741 check_scsi_status:
1742 /*
1743 * Check to see if SCSI Status is non zero. If so report SCSI
1744 * Status.
1745 */
1746 if (lscsi_status != 0) {
1747 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1748 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
1749 "QUEUE FULL detected.\n");
1750 logit = 1;
1751 break;
1752 }
1753 if (lscsi_status != SS_CHECK_CONDITION)
1754 break;
1755
1756 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1757 if (!(scsi_status & SS_SENSE_LEN_VALID))
1758 break;
1759
1760 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1761 sense_len, rsp, res);
1762 }
1763 break;
1764
1765 case CS_PORT_LOGGED_OUT:
1766 case CS_PORT_CONFIG_CHG:
1767 case CS_PORT_BUSY:
1768 case CS_INCOMPLETE:
1769 case CS_PORT_UNAVAILABLE:
1770 case CS_TIMEOUT:
1771 case CS_RESET:
1772
1773 /*
1774 * We are going to have the fc class block the rport
1775 * while we try to recover so instruct the mid layer
1776 * to requeue until the class decides how to handle this.
1777 */
1778 res = DID_TRANSPORT_DISRUPTED << 16;
1779
1780 if (comp_status == CS_TIMEOUT) {
1781 if (IS_FWI2_CAPABLE(ha))
1782 break;
1783 else if ((le16_to_cpu(sts->status_flags) &
1784 SF_LOGOUT_SENT) == 0)
1785 break;
1786 }
1787
1788 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
1789 "Port down status: port-state=0x%x.\n",
1790 atomic_read(&fcport->state));
1791
1792 if (atomic_read(&fcport->state) == FCS_ONLINE)
1793 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1794 break;
1795
1796 case CS_ABORTED:
1797 res = DID_RESET << 16;
1798 break;
1799
1800 case CS_DIF_ERROR:
1801 logit = qla2x00_handle_dif_error(sp, sts24);
1802 break;
1803 default:
1804 res = DID_ERROR << 16;
1805 break;
1806 }
1807
1808 out:
1809 if (logit)
1810 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
1811 "FCP command status: 0x%x-0x%x (0x%x) "
1812 "nexus=%ld:%d:%d portid=%02x%02x%02x oxid=0x%x "
1813 "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
1814 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
1815 comp_status, scsi_status, res, vha->host_no,
1816 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
1817 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
1818 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1819 cp->cmnd[4], cp->cmnd[5], cp->cmnd[6], cp->cmnd[7],
1820 cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
1821 resid_len, fw_resid_len);
1822
1823 if (rsp->status_srb == NULL)
1824 sp->done(ha, sp, res);
1825 }
1826
1827 /**
1828 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1829 * @ha: SCSI driver HA context
1830 * @pkt: Entry pointer
1831 *
1832 * Extended sense data.
1833 */
1834 static void
1835 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1836 {
1837 uint8_t sense_sz = 0;
1838 struct qla_hw_data *ha = rsp->hw;
1839 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1840 srb_t *sp = rsp->status_srb;
1841 struct scsi_cmnd *cp;
1842 uint32_t sense_len;
1843 uint8_t *sense_ptr;
1844
1845 if (!sp || !GET_CMD_SENSE_LEN(sp))
1846 return;
1847
1848 sense_len = GET_CMD_SENSE_LEN(sp);
1849 sense_ptr = GET_CMD_SENSE_PTR(sp);
1850
1851 cp = GET_CMD_SP(sp);
1852 if (cp == NULL) {
1853 ql_log(ql_log_warn, vha, 0x3025,
1854 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
1855
1856 rsp->status_srb = NULL;
1857 return;
1858 }
1859
1860 if (sense_len > sizeof(pkt->data))
1861 sense_sz = sizeof(pkt->data);
1862 else
1863 sense_sz = sense_len;
1864
1865 /* Move sense data. */
1866 if (IS_FWI2_CAPABLE(ha))
1867 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1868 memcpy(sense_ptr, pkt->data, sense_sz);
1869 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
1870 sense_ptr, sense_sz);
1871
1872 sense_len -= sense_sz;
1873 sense_ptr += sense_sz;
1874
1875 SET_CMD_SENSE_PTR(sp, sense_ptr);
1876 SET_CMD_SENSE_LEN(sp, sense_len);
1877
1878 /* Place command on done queue. */
1879 if (sense_len == 0) {
1880 rsp->status_srb = NULL;
1881 sp->done(ha, sp, cp->result);
1882 }
1883 }
1884
1885 /**
1886 * qla2x00_error_entry() - Process an error entry.
1887 * @ha: SCSI driver HA context
1888 * @pkt: Entry pointer
1889 */
1890 static void
1891 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1892 {
1893 srb_t *sp;
1894 struct qla_hw_data *ha = vha->hw;
1895 const char func[] = "ERROR-IOCB";
1896 uint16_t que = MSW(pkt->handle);
1897 struct req_que *req = NULL;
1898 int res = DID_ERROR << 16;
1899
1900 ql_dbg(ql_dbg_async, vha, 0x502a,
1901 "type of error status in response: 0x%x\n", pkt->entry_status);
1902
1903 if (que >= ha->max_req_queues || !ha->req_q_map[que])
1904 goto fatal;
1905
1906 req = ha->req_q_map[que];
1907
1908 if (pkt->entry_status & RF_BUSY)
1909 res = DID_BUS_BUSY << 16;
1910
1911 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1912 if (sp) {
1913 sp->done(ha, sp, res);
1914 return;
1915 }
1916 fatal:
1917 ql_log(ql_log_warn, vha, 0x5030,
1918 "Error entry - invalid handle/queue.\n");
1919
1920 if (IS_QLA82XX(ha))
1921 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1922 else
1923 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1924 qla2xxx_wake_dpc(vha);
1925 }
1926
1927 /**
1928 * qla24xx_mbx_completion() - Process mailbox command completions.
1929 * @ha: SCSI driver HA context
1930 * @mb0: Mailbox0 register
1931 */
1932 static void
1933 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1934 {
1935 uint16_t cnt;
1936 uint32_t mboxes;
1937 uint16_t __iomem *wptr;
1938 struct qla_hw_data *ha = vha->hw;
1939 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1940
1941 /* Read all mbox registers? */
1942 mboxes = (1 << ha->mbx_count) - 1;
1943 if (!ha->mcp)
1944 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERRROR.\n");
1945 else
1946 mboxes = ha->mcp->in_mb;
1947
1948 /* Load return mailbox registers. */
1949 ha->flags.mbox_int = 1;
1950 ha->mailbox_out[0] = mb0;
1951 mboxes >>= 1;
1952 wptr = (uint16_t __iomem *)&reg->mailbox1;
1953
1954 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1955 if (mboxes & BIT_0)
1956 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1957
1958 mboxes >>= 1;
1959 wptr++;
1960 }
1961 }
1962
1963 /**
1964 * qla24xx_process_response_queue() - Process response queue entries.
1965 * @ha: SCSI driver HA context
1966 */
1967 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1968 struct rsp_que *rsp)
1969 {
1970 struct sts_entry_24xx *pkt;
1971 struct qla_hw_data *ha = vha->hw;
1972
1973 if (!vha->flags.online)
1974 return;
1975
1976 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1977 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1978
1979 rsp->ring_index++;
1980 if (rsp->ring_index == rsp->length) {
1981 rsp->ring_index = 0;
1982 rsp->ring_ptr = rsp->ring;
1983 } else {
1984 rsp->ring_ptr++;
1985 }
1986
1987 if (pkt->entry_status != 0) {
1988 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1989 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1990 wmb();
1991 continue;
1992 }
1993
1994 switch (pkt->entry_type) {
1995 case STATUS_TYPE:
1996 qla2x00_status_entry(vha, rsp, pkt);
1997 break;
1998 case STATUS_CONT_TYPE:
1999 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2000 break;
2001 case VP_RPT_ID_IOCB_TYPE:
2002 qla24xx_report_id_acquisition(vha,
2003 (struct vp_rpt_id_entry_24xx *)pkt);
2004 break;
2005 case LOGINOUT_PORT_IOCB_TYPE:
2006 qla24xx_logio_entry(vha, rsp->req,
2007 (struct logio_entry_24xx *)pkt);
2008 break;
2009 case TSK_MGMT_IOCB_TYPE:
2010 qla24xx_tm_iocb_entry(vha, rsp->req,
2011 (struct tsk_mgmt_entry *)pkt);
2012 break;
2013 case CT_IOCB_TYPE:
2014 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2015 break;
2016 case ELS_IOCB_TYPE:
2017 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2018 break;
2019 case MARKER_TYPE:
2020 /* Do nothing in this case, this check is to prevent it
2021 * from falling into default case
2022 */
2023 break;
2024 default:
2025 /* Type Not Supported. */
2026 ql_dbg(ql_dbg_async, vha, 0x5042,
2027 "Received unknown response pkt type %x "
2028 "entry status=%x.\n",
2029 pkt->entry_type, pkt->entry_status);
2030 break;
2031 }
2032 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2033 wmb();
2034 }
2035
2036 /* Adjust ring index */
2037 if (IS_QLA82XX(ha)) {
2038 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2039 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2040 } else
2041 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2042 }
2043
2044 static void
2045 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2046 {
2047 int rval;
2048 uint32_t cnt;
2049 struct qla_hw_data *ha = vha->hw;
2050 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2051
2052 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
2053 return;
2054
2055 rval = QLA_SUCCESS;
2056 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2057 RD_REG_DWORD(&reg->iobase_addr);
2058 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2059 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2060 rval == QLA_SUCCESS; cnt--) {
2061 if (cnt) {
2062 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2063 udelay(10);
2064 } else
2065 rval = QLA_FUNCTION_TIMEOUT;
2066 }
2067 if (rval == QLA_SUCCESS)
2068 goto next_test;
2069
2070 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2071 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2072 rval == QLA_SUCCESS; cnt--) {
2073 if (cnt) {
2074 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2075 udelay(10);
2076 } else
2077 rval = QLA_FUNCTION_TIMEOUT;
2078 }
2079 if (rval != QLA_SUCCESS)
2080 goto done;
2081
2082 next_test:
2083 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2084 ql_log(ql_log_info, vha, 0x504c,
2085 "Additional code -- 0x55AA.\n");
2086
2087 done:
2088 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2089 RD_REG_DWORD(&reg->iobase_window);
2090 }
2091
2092 /**
2093 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2094 * @irq:
2095 * @dev_id: SCSI driver HA context
2096 *
2097 * Called by system whenever the host adapter generates an interrupt.
2098 *
2099 * Returns handled flag.
2100 */
2101 irqreturn_t
2102 qla24xx_intr_handler(int irq, void *dev_id)
2103 {
2104 scsi_qla_host_t *vha;
2105 struct qla_hw_data *ha;
2106 struct device_reg_24xx __iomem *reg;
2107 int status;
2108 unsigned long iter;
2109 uint32_t stat;
2110 uint32_t hccr;
2111 uint16_t mb[4];
2112 struct rsp_que *rsp;
2113 unsigned long flags;
2114
2115 rsp = (struct rsp_que *) dev_id;
2116 if (!rsp) {
2117 ql_log(ql_log_info, NULL, 0x5059,
2118 "%s: NULL response queue pointer.\n", __func__);
2119 return IRQ_NONE;
2120 }
2121
2122 ha = rsp->hw;
2123 reg = &ha->iobase->isp24;
2124 status = 0;
2125
2126 if (unlikely(pci_channel_offline(ha->pdev)))
2127 return IRQ_HANDLED;
2128
2129 spin_lock_irqsave(&ha->hardware_lock, flags);
2130 vha = pci_get_drvdata(ha->pdev);
2131 for (iter = 50; iter--; ) {
2132 stat = RD_REG_DWORD(&reg->host_status);
2133 if (stat & HSRX_RISC_PAUSED) {
2134 if (unlikely(pci_channel_offline(ha->pdev)))
2135 break;
2136
2137 hccr = RD_REG_DWORD(&reg->hccr);
2138
2139 ql_log(ql_log_warn, vha, 0x504b,
2140 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2141 hccr);
2142
2143 qla2xxx_check_risc_status(vha);
2144
2145 ha->isp_ops->fw_dump(vha, 1);
2146 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2147 break;
2148 } else if ((stat & HSRX_RISC_INT) == 0)
2149 break;
2150
2151 switch (stat & 0xff) {
2152 case 0x1:
2153 case 0x2:
2154 case 0x10:
2155 case 0x11:
2156 qla24xx_mbx_completion(vha, MSW(stat));
2157 status |= MBX_INTERRUPT;
2158
2159 break;
2160 case 0x12:
2161 mb[0] = MSW(stat);
2162 mb[1] = RD_REG_WORD(&reg->mailbox1);
2163 mb[2] = RD_REG_WORD(&reg->mailbox2);
2164 mb[3] = RD_REG_WORD(&reg->mailbox3);
2165 qla2x00_async_event(vha, rsp, mb);
2166 break;
2167 case 0x13:
2168 case 0x14:
2169 qla24xx_process_response_queue(vha, rsp);
2170 break;
2171 default:
2172 ql_dbg(ql_dbg_async, vha, 0x504f,
2173 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2174 break;
2175 }
2176 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2177 RD_REG_DWORD_RELAXED(&reg->hccr);
2178 }
2179 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2180
2181 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2182 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2183 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2184 complete(&ha->mbx_intr_comp);
2185 }
2186
2187 return IRQ_HANDLED;
2188 }
2189
2190 static irqreturn_t
2191 qla24xx_msix_rsp_q(int irq, void *dev_id)
2192 {
2193 struct qla_hw_data *ha;
2194 struct rsp_que *rsp;
2195 struct device_reg_24xx __iomem *reg;
2196 struct scsi_qla_host *vha;
2197 unsigned long flags;
2198
2199 rsp = (struct rsp_que *) dev_id;
2200 if (!rsp) {
2201 ql_log(ql_log_info, NULL, 0x505a,
2202 "%s: NULL response queue pointer.\n", __func__);
2203 return IRQ_NONE;
2204 }
2205 ha = rsp->hw;
2206 reg = &ha->iobase->isp24;
2207
2208 spin_lock_irqsave(&ha->hardware_lock, flags);
2209
2210 vha = pci_get_drvdata(ha->pdev);
2211 qla24xx_process_response_queue(vha, rsp);
2212 if (!ha->flags.disable_msix_handshake) {
2213 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2214 RD_REG_DWORD_RELAXED(&reg->hccr);
2215 }
2216 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2217
2218 return IRQ_HANDLED;
2219 }
2220
2221 static irqreturn_t
2222 qla25xx_msix_rsp_q(int irq, void *dev_id)
2223 {
2224 struct qla_hw_data *ha;
2225 struct rsp_que *rsp;
2226 struct device_reg_24xx __iomem *reg;
2227 unsigned long flags;
2228
2229 rsp = (struct rsp_que *) dev_id;
2230 if (!rsp) {
2231 ql_log(ql_log_info, NULL, 0x505b,
2232 "%s: NULL response queue pointer.\n", __func__);
2233 return IRQ_NONE;
2234 }
2235 ha = rsp->hw;
2236
2237 /* Clear the interrupt, if enabled, for this response queue */
2238 if (!ha->flags.disable_msix_handshake) {
2239 reg = &ha->iobase->isp24;
2240 spin_lock_irqsave(&ha->hardware_lock, flags);
2241 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2242 RD_REG_DWORD_RELAXED(&reg->hccr);
2243 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2244 }
2245 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2246
2247 return IRQ_HANDLED;
2248 }
2249
2250 static irqreturn_t
2251 qla24xx_msix_default(int irq, void *dev_id)
2252 {
2253 scsi_qla_host_t *vha;
2254 struct qla_hw_data *ha;
2255 struct rsp_que *rsp;
2256 struct device_reg_24xx __iomem *reg;
2257 int status;
2258 uint32_t stat;
2259 uint32_t hccr;
2260 uint16_t mb[4];
2261 unsigned long flags;
2262
2263 rsp = (struct rsp_que *) dev_id;
2264 if (!rsp) {
2265 ql_log(ql_log_info, NULL, 0x505c,
2266 "%s: NULL response queue pointer.\n", __func__);
2267 return IRQ_NONE;
2268 }
2269 ha = rsp->hw;
2270 reg = &ha->iobase->isp24;
2271 status = 0;
2272
2273 spin_lock_irqsave(&ha->hardware_lock, flags);
2274 vha = pci_get_drvdata(ha->pdev);
2275 do {
2276 stat = RD_REG_DWORD(&reg->host_status);
2277 if (stat & HSRX_RISC_PAUSED) {
2278 if (unlikely(pci_channel_offline(ha->pdev)))
2279 break;
2280
2281 hccr = RD_REG_DWORD(&reg->hccr);
2282
2283 ql_log(ql_log_info, vha, 0x5050,
2284 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2285 hccr);
2286
2287 qla2xxx_check_risc_status(vha);
2288
2289 ha->isp_ops->fw_dump(vha, 1);
2290 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2291 break;
2292 } else if ((stat & HSRX_RISC_INT) == 0)
2293 break;
2294
2295 switch (stat & 0xff) {
2296 case 0x1:
2297 case 0x2:
2298 case 0x10:
2299 case 0x11:
2300 qla24xx_mbx_completion(vha, MSW(stat));
2301 status |= MBX_INTERRUPT;
2302
2303 break;
2304 case 0x12:
2305 mb[0] = MSW(stat);
2306 mb[1] = RD_REG_WORD(&reg->mailbox1);
2307 mb[2] = RD_REG_WORD(&reg->mailbox2);
2308 mb[3] = RD_REG_WORD(&reg->mailbox3);
2309 qla2x00_async_event(vha, rsp, mb);
2310 break;
2311 case 0x13:
2312 case 0x14:
2313 qla24xx_process_response_queue(vha, rsp);
2314 break;
2315 default:
2316 ql_dbg(ql_dbg_async, vha, 0x5051,
2317 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2318 break;
2319 }
2320 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2321 } while (0);
2322 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2323
2324 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2325 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2326 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2327 complete(&ha->mbx_intr_comp);
2328 }
2329 return IRQ_HANDLED;
2330 }
2331
2332 /* Interrupt handling helpers. */
2333
2334 struct qla_init_msix_entry {
2335 const char *name;
2336 irq_handler_t handler;
2337 };
2338
2339 static struct qla_init_msix_entry msix_entries[3] = {
2340 { "qla2xxx (default)", qla24xx_msix_default },
2341 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2342 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2343 };
2344
2345 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2346 { "qla2xxx (default)", qla82xx_msix_default },
2347 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2348 };
2349
2350 static void
2351 qla24xx_disable_msix(struct qla_hw_data *ha)
2352 {
2353 int i;
2354 struct qla_msix_entry *qentry;
2355 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2356
2357 for (i = 0; i < ha->msix_count; i++) {
2358 qentry = &ha->msix_entries[i];
2359 if (qentry->have_irq)
2360 free_irq(qentry->vector, qentry->rsp);
2361 }
2362 pci_disable_msix(ha->pdev);
2363 kfree(ha->msix_entries);
2364 ha->msix_entries = NULL;
2365 ha->flags.msix_enabled = 0;
2366 ql_dbg(ql_dbg_init, vha, 0x0042,
2367 "Disabled the MSI.\n");
2368 }
2369
2370 static int
2371 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2372 {
2373 #define MIN_MSIX_COUNT 2
2374 int i, ret;
2375 struct msix_entry *entries;
2376 struct qla_msix_entry *qentry;
2377 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2378
2379 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2380 GFP_KERNEL);
2381 if (!entries) {
2382 ql_log(ql_log_warn, vha, 0x00bc,
2383 "Failed to allocate memory for msix_entry.\n");
2384 return -ENOMEM;
2385 }
2386
2387 for (i = 0; i < ha->msix_count; i++)
2388 entries[i].entry = i;
2389
2390 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2391 if (ret) {
2392 if (ret < MIN_MSIX_COUNT)
2393 goto msix_failed;
2394
2395 ql_log(ql_log_warn, vha, 0x00c6,
2396 "MSI-X: Failed to enable support "
2397 "-- %d/%d\n Retry with %d vectors.\n",
2398 ha->msix_count, ret, ret);
2399 ha->msix_count = ret;
2400 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2401 if (ret) {
2402 msix_failed:
2403 ql_log(ql_log_fatal, vha, 0x00c7,
2404 "MSI-X: Failed to enable support, "
2405 "giving up -- %d/%d.\n",
2406 ha->msix_count, ret);
2407 goto msix_out;
2408 }
2409 ha->max_rsp_queues = ha->msix_count - 1;
2410 }
2411 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2412 ha->msix_count, GFP_KERNEL);
2413 if (!ha->msix_entries) {
2414 ql_log(ql_log_fatal, vha, 0x00c8,
2415 "Failed to allocate memory for ha->msix_entries.\n");
2416 ret = -ENOMEM;
2417 goto msix_out;
2418 }
2419 ha->flags.msix_enabled = 1;
2420
2421 for (i = 0; i < ha->msix_count; i++) {
2422 qentry = &ha->msix_entries[i];
2423 qentry->vector = entries[i].vector;
2424 qentry->entry = entries[i].entry;
2425 qentry->have_irq = 0;
2426 qentry->rsp = NULL;
2427 }
2428
2429 /* Enable MSI-X vectors for the base queue */
2430 for (i = 0; i < 2; i++) {
2431 qentry = &ha->msix_entries[i];
2432 if (IS_QLA82XX(ha)) {
2433 ret = request_irq(qentry->vector,
2434 qla82xx_msix_entries[i].handler,
2435 0, qla82xx_msix_entries[i].name, rsp);
2436 } else {
2437 ret = request_irq(qentry->vector,
2438 msix_entries[i].handler,
2439 0, msix_entries[i].name, rsp);
2440 }
2441 if (ret) {
2442 ql_log(ql_log_fatal, vha, 0x00cb,
2443 "MSI-X: unable to register handler -- %x/%d.\n",
2444 qentry->vector, ret);
2445 qla24xx_disable_msix(ha);
2446 ha->mqenable = 0;
2447 goto msix_out;
2448 }
2449 qentry->have_irq = 1;
2450 qentry->rsp = rsp;
2451 rsp->msix = qentry;
2452 }
2453
2454 /* Enable MSI-X vector for response queue update for queue 0 */
2455 if (IS_QLA83XX(ha)) {
2456 if (ha->msixbase && ha->mqiobase &&
2457 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2458 ha->mqenable = 1;
2459 } else
2460 if (ha->mqiobase
2461 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2462 ha->mqenable = 1;
2463 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2464 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2465 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2466 ql_dbg(ql_dbg_init, vha, 0x0055,
2467 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2468 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2469
2470 msix_out:
2471 kfree(entries);
2472 return ret;
2473 }
2474
2475 int
2476 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2477 {
2478 int ret;
2479 device_reg_t __iomem *reg = ha->iobase;
2480 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2481
2482 /* If possible, enable MSI-X. */
2483 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2484 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha))
2485 goto skip_msi;
2486
2487 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2488 (ha->pdev->subsystem_device == 0x7040 ||
2489 ha->pdev->subsystem_device == 0x7041 ||
2490 ha->pdev->subsystem_device == 0x1705)) {
2491 ql_log(ql_log_warn, vha, 0x0034,
2492 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
2493 ha->pdev->subsystem_vendor,
2494 ha->pdev->subsystem_device);
2495 goto skip_msi;
2496 }
2497
2498 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
2499 ql_log(ql_log_warn, vha, 0x0035,
2500 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
2501 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
2502 goto skip_msix;
2503 }
2504
2505 ret = qla24xx_enable_msix(ha, rsp);
2506 if (!ret) {
2507 ql_dbg(ql_dbg_init, vha, 0x0036,
2508 "MSI-X: Enabled (0x%X, 0x%X).\n",
2509 ha->chip_revision, ha->fw_attributes);
2510 goto clear_risc_ints;
2511 }
2512 ql_log(ql_log_info, vha, 0x0037,
2513 "MSI-X Falling back-to MSI mode -%d.\n", ret);
2514 skip_msix:
2515
2516 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2517 !IS_QLA8001(ha))
2518 goto skip_msi;
2519
2520 ret = pci_enable_msi(ha->pdev);
2521 if (!ret) {
2522 ql_dbg(ql_dbg_init, vha, 0x0038,
2523 "MSI: Enabled.\n");
2524 ha->flags.msi_enabled = 1;
2525 } else
2526 ql_log(ql_log_warn, vha, 0x0039,
2527 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
2528 skip_msi:
2529
2530 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2531 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2532 QLA2XXX_DRIVER_NAME, rsp);
2533 if (ret) {
2534 ql_log(ql_log_warn, vha, 0x003a,
2535 "Failed to reserve interrupt %d already in use.\n",
2536 ha->pdev->irq);
2537 goto fail;
2538 }
2539
2540 clear_risc_ints:
2541
2542 /*
2543 * FIXME: Noted that 8014s were being dropped during NK testing.
2544 * Timing deltas during MSI-X/INTa transitions?
2545 */
2546 if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA83XX(ha))
2547 goto fail;
2548 spin_lock_irq(&ha->hardware_lock);
2549 if (IS_FWI2_CAPABLE(ha)) {
2550 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2551 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2552 } else {
2553 WRT_REG_WORD(&reg->isp.semaphore, 0);
2554 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2555 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2556 }
2557 spin_unlock_irq(&ha->hardware_lock);
2558
2559 fail:
2560 return ret;
2561 }
2562
2563 void
2564 qla2x00_free_irqs(scsi_qla_host_t *vha)
2565 {
2566 struct qla_hw_data *ha = vha->hw;
2567 struct rsp_que *rsp = ha->rsp_q_map[0];
2568
2569 if (ha->flags.msix_enabled)
2570 qla24xx_disable_msix(ha);
2571 else if (ha->flags.msi_enabled) {
2572 free_irq(ha->pdev->irq, rsp);
2573 pci_disable_msi(ha->pdev);
2574 } else
2575 free_irq(ha->pdev->irq, rsp);
2576 }
2577
2578
2579 int qla25xx_request_irq(struct rsp_que *rsp)
2580 {
2581 struct qla_hw_data *ha = rsp->hw;
2582 struct qla_init_msix_entry *intr = &msix_entries[2];
2583 struct qla_msix_entry *msix = rsp->msix;
2584 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2585 int ret;
2586
2587 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2588 if (ret) {
2589 ql_log(ql_log_fatal, vha, 0x00e6,
2590 "MSI-X: Unable to register handler -- %x/%d.\n",
2591 msix->vector, ret);
2592 return ret;
2593 }
2594 msix->have_irq = 1;
2595 msix->rsp = rsp;
2596 return ret;
2597 }
Linux with added FPC-III support