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tty/serial: atmel_serial: whitespace and braces modifications
[zen-stable.git] / drivers / scsi / qla2xxx / qla_isr.c
blobb16b7725dee001ee791b359a270d5a8792311957
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2011 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/delay.h>
10 #include <linux/slab.h>
11 #include <scsi/scsi_tcq.h>
12 #include <scsi/scsi_bsg_fc.h>
13 #include <scsi/scsi_eh.h>
14
15 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
16 static void qla2x00_process_completed_request(struct scsi_qla_host *,
17 struct req_que *, uint32_t);
18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
21 sts_entry_t *);
22
23 /**
24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
25 * @irq:
26 * @dev_id: SCSI driver HA context
27 *
28 * Called by system whenever the host adapter generates an interrupt.
29 *
30 * Returns handled flag.
31 */
32 irqreturn_t
33 qla2100_intr_handler(int irq, void *dev_id)
34 {
35 scsi_qla_host_t *vha;
36 struct qla_hw_data *ha;
37 struct device_reg_2xxx __iomem *reg;
38 int status;
39 unsigned long iter;
40 uint16_t hccr;
41 uint16_t mb[4];
42 struct rsp_que *rsp;
43 unsigned long flags;
44
45 rsp = (struct rsp_que *) dev_id;
46 if (!rsp) {
47 printk(KERN_INFO
48 "%s(): NULL response queue pointer.\n", __func__);
49 return (IRQ_NONE);
50 }
51
52 ha = rsp->hw;
53 reg = &ha->iobase->isp;
54 status = 0;
55
56 spin_lock_irqsave(&ha->hardware_lock, flags);
57 vha = pci_get_drvdata(ha->pdev);
58 for (iter = 50; iter--; ) {
59 hccr = RD_REG_WORD(&reg->hccr);
60 if (hccr & HCCR_RISC_PAUSE) {
61 if (pci_channel_offline(ha->pdev))
62 break;
63
64 /*
65 * Issue a "HARD" reset in order for the RISC interrupt
66 * bit to be cleared. Schedule a big 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 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 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 uint16_t __iomem *wptr;
246 struct qla_hw_data *ha = vha->hw;
247 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
248
249 /* Load return mailbox registers. */
250 ha->flags.mbox_int = 1;
251 ha->mailbox_out[0] = mb0;
252 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
253
254 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
255 if (IS_QLA2200(ha) && cnt == 8)
256 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
257 if (cnt == 4 || cnt == 5)
258 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
259 else
260 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
261
262 wptr++;
263 }
264
265 if (ha->mcp) {
266 ql_dbg(ql_dbg_async, vha, 0x5000,
267 "Got mbx completion. cmd=%x.\n", ha->mcp->mb[0]);
268 } else {
269 ql_dbg(ql_dbg_async, vha, 0x5001,
270 "MBX pointer ERROR.\n");
271 }
272 }
273
274 static void
275 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
276 {
277 static char *event[] =
278 { "Complete", "Request Notification", "Time Extension" };
279 int rval;
280 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
281 uint16_t __iomem *wptr;
282 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
283
284 /* Seed data -- mailbox1 -> mailbox7. */
285 wptr = (uint16_t __iomem *)&reg24->mailbox1;
286 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
287 mb[cnt] = RD_REG_WORD(wptr);
288
289 ql_dbg(ql_dbg_async, vha, 0x5021,
290 "Inter-Driver Commucation %s -- "
291 "%04x %04x %04x %04x %04x %04x %04x.\n",
292 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
293 mb[4], mb[5], mb[6]);
294
295 /* Acknowledgement needed? [Notify && non-zero timeout]. */
296 timeout = (descr >> 8) & 0xf;
297 if (aen != MBA_IDC_NOTIFY || !timeout)
298 return;
299
300 ql_dbg(ql_dbg_async, vha, 0x5022,
301 "Inter-Driver Commucation %s -- ACK timeout=%d.\n",
302 vha->host_no, event[aen & 0xff], timeout);
303
304 rval = qla2x00_post_idc_ack_work(vha, mb);
305 if (rval != QLA_SUCCESS)
306 ql_log(ql_log_warn, vha, 0x5023,
307 "IDC failed to post ACK.\n");
308 }
309
310 /**
311 * qla2x00_async_event() - Process aynchronous events.
312 * @ha: SCSI driver HA context
313 * @mb: Mailbox registers (0 - 3)
314 */
315 void
316 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
317 {
318 #define LS_UNKNOWN 2
319 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
320 char *link_speed;
321 uint16_t handle_cnt;
322 uint16_t cnt, mbx;
323 uint32_t handles[5];
324 struct qla_hw_data *ha = vha->hw;
325 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
326 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
327 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
328 uint32_t rscn_entry, host_pid;
329 uint8_t rscn_queue_index;
330 unsigned long flags;
331
332 /* Setup to process RIO completion. */
333 handle_cnt = 0;
334 if (IS_QLA8XXX_TYPE(ha))
335 goto skip_rio;
336 switch (mb[0]) {
337 case MBA_SCSI_COMPLETION:
338 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
339 handle_cnt = 1;
340 break;
341 case MBA_CMPLT_1_16BIT:
342 handles[0] = mb[1];
343 handle_cnt = 1;
344 mb[0] = MBA_SCSI_COMPLETION;
345 break;
346 case MBA_CMPLT_2_16BIT:
347 handles[0] = mb[1];
348 handles[1] = mb[2];
349 handle_cnt = 2;
350 mb[0] = MBA_SCSI_COMPLETION;
351 break;
352 case MBA_CMPLT_3_16BIT:
353 handles[0] = mb[1];
354 handles[1] = mb[2];
355 handles[2] = mb[3];
356 handle_cnt = 3;
357 mb[0] = MBA_SCSI_COMPLETION;
358 break;
359 case MBA_CMPLT_4_16BIT:
360 handles[0] = mb[1];
361 handles[1] = mb[2];
362 handles[2] = mb[3];
363 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
364 handle_cnt = 4;
365 mb[0] = MBA_SCSI_COMPLETION;
366 break;
367 case MBA_CMPLT_5_16BIT:
368 handles[0] = mb[1];
369 handles[1] = mb[2];
370 handles[2] = mb[3];
371 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
372 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
373 handle_cnt = 5;
374 mb[0] = MBA_SCSI_COMPLETION;
375 break;
376 case MBA_CMPLT_2_32BIT:
377 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
378 handles[1] = le32_to_cpu(
379 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
380 RD_MAILBOX_REG(ha, reg, 6));
381 handle_cnt = 2;
382 mb[0] = MBA_SCSI_COMPLETION;
383 break;
384 default:
385 break;
386 }
387 skip_rio:
388 switch (mb[0]) {
389 case MBA_SCSI_COMPLETION: /* Fast Post */
390 if (!vha->flags.online)
391 break;
392
393 for (cnt = 0; cnt < handle_cnt; cnt++)
394 qla2x00_process_completed_request(vha, rsp->req,
395 handles[cnt]);
396 break;
397
398 case MBA_RESET: /* Reset */
399 ql_dbg(ql_dbg_async, vha, 0x5002,
400 "Asynchronous RESET.\n");
401
402 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
403 break;
404
405 case MBA_SYSTEM_ERR: /* System Error */
406 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox7) : 0;
407 ql_log(ql_log_warn, vha, 0x5003,
408 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
409 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
410
411 ha->isp_ops->fw_dump(vha, 1);
412
413 if (IS_FWI2_CAPABLE(ha)) {
414 if (mb[1] == 0 && mb[2] == 0) {
415 ql_log(ql_log_fatal, vha, 0x5004,
416 "Unrecoverable Hardware Error: adapter "
417 "marked OFFLINE!\n");
418 vha->flags.online = 0;
419 } else {
420 /* Check to see if MPI timeout occurred */
421 if ((mbx & MBX_3) && (ha->flags.port0))
422 set_bit(MPI_RESET_NEEDED,
423 &vha->dpc_flags);
424
425 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
426 }
427 } else if (mb[1] == 0) {
428 ql_log(ql_log_fatal, vha, 0x5005,
429 "Unrecoverable Hardware Error: adapter marked "
430 "OFFLINE!\n");
431 vha->flags.online = 0;
432 } else
433 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
434 break;
435
436 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
437 ql_log(ql_log_warn, vha, 0x5006,
438 "ISP Request Transfer Error (%x).\n", mb[1]);
439
440 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
441 break;
442
443 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
444 ql_log(ql_log_warn, vha, 0x5007,
445 "ISP Response Transfer Error.\n");
446
447 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
448 break;
449
450 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
451 ql_dbg(ql_dbg_async, vha, 0x5008,
452 "Asynchronous WAKEUP_THRES.\n");
453 break;
454
455 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
456 ql_log(ql_log_info, vha, 0x5009,
457 "LIP occurred (%x).\n", mb[1]);
458
459 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
460 atomic_set(&vha->loop_state, LOOP_DOWN);
461 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
462 qla2x00_mark_all_devices_lost(vha, 1);
463 }
464
465 if (vha->vp_idx) {
466 atomic_set(&vha->vp_state, VP_FAILED);
467 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
468 }
469
470 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
471 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
472
473 vha->flags.management_server_logged_in = 0;
474 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
475 break;
476
477 case MBA_LOOP_UP: /* Loop Up Event */
478 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
479 link_speed = link_speeds[0];
480 ha->link_data_rate = PORT_SPEED_1GB;
481 } else {
482 link_speed = link_speeds[LS_UNKNOWN];
483 if (mb[1] < 5)
484 link_speed = link_speeds[mb[1]];
485 else if (mb[1] == 0x13)
486 link_speed = link_speeds[5];
487 ha->link_data_rate = mb[1];
488 }
489
490 ql_log(ql_log_info, vha, 0x500a,
491 "LOOP UP detected (%s Gbps).\n", link_speed);
492
493 vha->flags.management_server_logged_in = 0;
494 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
495 break;
496
497 case MBA_LOOP_DOWN: /* Loop Down Event */
498 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox4) : 0;
499 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
500 ql_log(ql_log_info, vha, 0x500b,
501 "LOOP DOWN detected (%x %x %x %x).\n",
502 mb[1], mb[2], mb[3], mbx);
503
504 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
505 atomic_set(&vha->loop_state, LOOP_DOWN);
506 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
507 vha->device_flags |= DFLG_NO_CABLE;
508 qla2x00_mark_all_devices_lost(vha, 1);
509 }
510
511 if (vha->vp_idx) {
512 atomic_set(&vha->vp_state, VP_FAILED);
513 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
514 }
515
516 vha->flags.management_server_logged_in = 0;
517 ha->link_data_rate = PORT_SPEED_UNKNOWN;
518 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
519 break;
520
521 case MBA_LIP_RESET: /* LIP reset occurred */
522 ql_log(ql_log_info, vha, 0x500c,
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 ql_dbg(ql_dbg_async, vha, 0x500d,
550 "DCBX Completed -- %04x %04x %04x.\n",
551 mb[1], mb[2], mb[3]);
552 if (ha->notify_dcbx_comp)
553 complete(&ha->dcbx_comp);
554
555 } else
556 ql_dbg(ql_dbg_async, vha, 0x500e,
557 "Asynchronous P2P MODE received.\n");
558
559 /*
560 * Until there's a transition from loop down to loop up, treat
561 * this as loop down only.
562 */
563 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
564 atomic_set(&vha->loop_state, LOOP_DOWN);
565 if (!atomic_read(&vha->loop_down_timer))
566 atomic_set(&vha->loop_down_timer,
567 LOOP_DOWN_TIME);
568 qla2x00_mark_all_devices_lost(vha, 1);
569 }
570
571 if (vha->vp_idx) {
572 atomic_set(&vha->vp_state, VP_FAILED);
573 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
574 }
575
576 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
577 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
578
579 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
580 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
581
582 ha->flags.gpsc_supported = 1;
583 vha->flags.management_server_logged_in = 0;
584 break;
585
586 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
587 if (IS_QLA2100(ha))
588 break;
589
590 ql_log(ql_log_info, vha, 0x500f,
591 "Configuration change detected: value=%x.\n", mb[1]);
592
593 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
594 atomic_set(&vha->loop_state, LOOP_DOWN);
595 if (!atomic_read(&vha->loop_down_timer))
596 atomic_set(&vha->loop_down_timer,
597 LOOP_DOWN_TIME);
598 qla2x00_mark_all_devices_lost(vha, 1);
599 }
600
601 if (vha->vp_idx) {
602 atomic_set(&vha->vp_state, VP_FAILED);
603 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
604 }
605
606 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
607 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
608 break;
609
610 case MBA_PORT_UPDATE: /* Port database update */
611 /*
612 * Handle only global and vn-port update events
613 *
614 * Relevant inputs:
615 * mb[1] = N_Port handle of changed port
616 * OR 0xffff for global event
617 * mb[2] = New login state
618 * 7 = Port logged out
619 * mb[3] = LSB is vp_idx, 0xff = all vps
620 *
621 * Skip processing if:
622 * Event is global, vp_idx is NOT all vps,
623 * vp_idx does not match
624 * Event is not global, vp_idx does not match
625 */
626 if (IS_QLA2XXX_MIDTYPE(ha) &&
627 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
628 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
629 break;
630
631 /* Global event -- port logout or port unavailable. */
632 if (mb[1] == 0xffff && mb[2] == 0x7) {
633 ql_dbg(ql_dbg_async, vha, 0x5010,
634 "Port unavailable %04x %04x %04x.\n",
635 mb[1], mb[2], mb[3]);
636
637 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
638 atomic_set(&vha->loop_state, LOOP_DOWN);
639 atomic_set(&vha->loop_down_timer,
640 LOOP_DOWN_TIME);
641 vha->device_flags |= DFLG_NO_CABLE;
642 qla2x00_mark_all_devices_lost(vha, 1);
643 }
644
645 if (vha->vp_idx) {
646 atomic_set(&vha->vp_state, VP_FAILED);
647 fc_vport_set_state(vha->fc_vport,
648 FC_VPORT_FAILED);
649 qla2x00_mark_all_devices_lost(vha, 1);
650 }
651
652 vha->flags.management_server_logged_in = 0;
653 ha->link_data_rate = PORT_SPEED_UNKNOWN;
654 break;
655 }
656
657 /*
658 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
659 * event etc. earlier indicating loop is down) then process
660 * it. Otherwise ignore it and Wait for RSCN to come in.
661 */
662 atomic_set(&vha->loop_down_timer, 0);
663 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
664 atomic_read(&vha->loop_state) != LOOP_DEAD) {
665 ql_dbg(ql_dbg_async, vha, 0x5011,
666 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
667 mb[1], mb[2], mb[3]);
668 break;
669 }
670
671 ql_dbg(ql_dbg_async, vha, 0x5012,
672 "Port database changed %04x %04x %04x.\n",
673 mb[1], mb[2], mb[3]);
674
675 /*
676 * Mark all devices as missing so we will login again.
677 */
678 atomic_set(&vha->loop_state, LOOP_UP);
679
680 qla2x00_mark_all_devices_lost(vha, 1);
681
682 vha->flags.rscn_queue_overflow = 1;
683
684 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
685 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
686 break;
687
688 case MBA_RSCN_UPDATE: /* State Change Registration */
689 /* Check if the Vport has issued a SCR */
690 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
691 break;
692 /* Only handle SCNs for our Vport index. */
693 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
694 break;
695
696 ql_dbg(ql_dbg_async, vha, 0x5013,
697 "RSCN database changed -- %04x %04x %04x.\n",
698 mb[1], mb[2], mb[3]);
699
700 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
701 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
702 | vha->d_id.b.al_pa;
703 if (rscn_entry == host_pid) {
704 ql_dbg(ql_dbg_async, vha, 0x5014,
705 "Ignoring RSCN update to local host "
706 "port ID (%06x).\n", host_pid);
707 break;
708 }
709
710 /* Ignore reserved bits from RSCN-payload. */
711 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
712 rscn_queue_index = vha->rscn_in_ptr + 1;
713 if (rscn_queue_index == MAX_RSCN_COUNT)
714 rscn_queue_index = 0;
715 if (rscn_queue_index != vha->rscn_out_ptr) {
716 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
717 vha->rscn_in_ptr = rscn_queue_index;
718 } else {
719 vha->flags.rscn_queue_overflow = 1;
720 }
721
722 atomic_set(&vha->loop_state, LOOP_UPDATE);
723 atomic_set(&vha->loop_down_timer, 0);
724 vha->flags.management_server_logged_in = 0;
725
726 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
727 set_bit(RSCN_UPDATE, &vha->dpc_flags);
728 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
729 break;
730
731 /* case MBA_RIO_RESPONSE: */
732 case MBA_ZIO_RESPONSE:
733 ql_dbg(ql_dbg_async, vha, 0x5015,
734 "[R|Z]IO update completion.\n");
735
736 if (IS_FWI2_CAPABLE(ha))
737 qla24xx_process_response_queue(vha, rsp);
738 else
739 qla2x00_process_response_queue(rsp);
740 break;
741
742 case MBA_DISCARD_RND_FRAME:
743 ql_dbg(ql_dbg_async, vha, 0x5016,
744 "Discard RND Frame -- %04x %04x %04x.\n",
745 mb[1], mb[2], mb[3]);
746 break;
747
748 case MBA_TRACE_NOTIFICATION:
749 ql_dbg(ql_dbg_async, vha, 0x5017,
750 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
751 break;
752
753 case MBA_ISP84XX_ALERT:
754 ql_dbg(ql_dbg_async, vha, 0x5018,
755 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
756 mb[1], mb[2], mb[3]);
757
758 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
759 switch (mb[1]) {
760 case A84_PANIC_RECOVERY:
761 ql_log(ql_log_info, vha, 0x5019,
762 "Alert 84XX: panic recovery %04x %04x.\n",
763 mb[2], mb[3]);
764 break;
765 case A84_OP_LOGIN_COMPLETE:
766 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
767 ql_log(ql_log_info, vha, 0x501a,
768 "Alert 84XX: firmware version %x.\n",
769 ha->cs84xx->op_fw_version);
770 break;
771 case A84_DIAG_LOGIN_COMPLETE:
772 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
773 ql_log(ql_log_info, vha, 0x501b,
774 "Alert 84XX: diagnostic firmware version %x.\n",
775 ha->cs84xx->diag_fw_version);
776 break;
777 case A84_GOLD_LOGIN_COMPLETE:
778 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
779 ha->cs84xx->fw_update = 1;
780 ql_log(ql_log_info, vha, 0x501c,
781 "Alert 84XX: gold firmware version %x.\n",
782 ha->cs84xx->gold_fw_version);
783 break;
784 default:
785 ql_log(ql_log_warn, vha, 0x501d,
786 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
787 mb[1], mb[2], mb[3]);
788 }
789 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
790 break;
791 case MBA_DCBX_START:
792 ql_dbg(ql_dbg_async, vha, 0x501e,
793 "DCBX Started -- %04x %04x %04x.\n",
794 mb[1], mb[2], mb[3]);
795 break;
796 case MBA_DCBX_PARAM_UPDATE:
797 ql_dbg(ql_dbg_async, vha, 0x501f,
798 "DCBX Parameters Updated -- %04x %04x %04x.\n",
799 mb[1], mb[2], mb[3]);
800 break;
801 case MBA_FCF_CONF_ERR:
802 ql_dbg(ql_dbg_async, vha, 0x5020,
803 "FCF Configuration Error -- %04x %04x %04x.\n",
804 mb[1], mb[2], mb[3]);
805 break;
806 case MBA_IDC_COMPLETE:
807 case MBA_IDC_NOTIFY:
808 case MBA_IDC_TIME_EXT:
809 qla81xx_idc_event(vha, mb[0], mb[1]);
810 break;
811 }
812
813 if (!vha->vp_idx && ha->num_vhosts)
814 qla2x00_alert_all_vps(rsp, mb);
815 }
816
817 /**
818 * qla2x00_process_completed_request() - Process a Fast Post response.
819 * @ha: SCSI driver HA context
820 * @index: SRB index
821 */
822 static void
823 qla2x00_process_completed_request(struct scsi_qla_host *vha,
824 struct req_que *req, uint32_t index)
825 {
826 srb_t *sp;
827 struct qla_hw_data *ha = vha->hw;
828
829 /* Validate handle. */
830 if (index >= MAX_OUTSTANDING_COMMANDS) {
831 ql_log(ql_log_warn, vha, 0x3014,
832 "Invalid SCSI command index (%x).\n", index);
833
834 if (IS_QLA82XX(ha))
835 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
836 else
837 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
838 return;
839 }
840
841 sp = req->outstanding_cmds[index];
842 if (sp) {
843 /* Free outstanding command slot. */
844 req->outstanding_cmds[index] = NULL;
845
846 /* Save ISP completion status */
847 sp->cmd->result = DID_OK << 16;
848 qla2x00_sp_compl(ha, sp);
849 } else {
850 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
851
852 if (IS_QLA82XX(ha))
853 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
854 else
855 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
856 }
857 }
858
859 static srb_t *
860 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
861 struct req_que *req, void *iocb)
862 {
863 struct qla_hw_data *ha = vha->hw;
864 sts_entry_t *pkt = iocb;
865 srb_t *sp = NULL;
866 uint16_t index;
867
868 index = LSW(pkt->handle);
869 if (index >= MAX_OUTSTANDING_COMMANDS) {
870 ql_log(ql_log_warn, vha, 0x5031,
871 "Invalid command index (%x).\n", index);
872 if (IS_QLA82XX(ha))
873 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
874 else
875 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
876 goto done;
877 }
878 sp = req->outstanding_cmds[index];
879 if (!sp) {
880 ql_log(ql_log_warn, vha, 0x5032,
881 "Invalid completion handle (%x) -- timed-out.\n", index);
882 return sp;
883 }
884 if (sp->handle != index) {
885 ql_log(ql_log_warn, vha, 0x5033,
886 "SRB handle (%x) mismatch %x.\n", sp->handle, 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 ql_dbg(ql_dbg_async, vha, 0x5043,
924 "Async-%s error entry - portid=%02x%02x%02x "
925 "entry-status=%x status=%x state-flag=%x "
926 "status-flags=%x.\n",
927 type, fcport->d_id.b.domain, fcport->d_id.b.area,
928 fcport->d_id.b.al_pa, mbx->entry_status,
929 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
930 le16_to_cpu(mbx->status_flags));
931
932 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5057,
933 (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 ql_dbg(ql_dbg_async, vha, 0x5045,
944 "Async-%s complete - portid=%02x%02x%02x mbx1=%x.\n",
945 type, fcport->d_id.b.domain, fcport->d_id.b.area,
946 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1));
947
948 data[0] = MBS_COMMAND_COMPLETE;
949 if (ctx->type == SRB_LOGIN_CMD) {
950 fcport->port_type = FCT_TARGET;
951 if (le16_to_cpu(mbx->mb1) & BIT_0)
952 fcport->port_type = FCT_INITIATOR;
953 else if (le16_to_cpu(mbx->mb1) & BIT_1)
954 fcport->flags |= FCF_FCP2_DEVICE;
955 }
956 goto logio_done;
957 }
958
959 data[0] = le16_to_cpu(mbx->mb0);
960 switch (data[0]) {
961 case MBS_PORT_ID_USED:
962 data[1] = le16_to_cpu(mbx->mb1);
963 break;
964 case MBS_LOOP_ID_USED:
965 break;
966 default:
967 data[0] = MBS_COMMAND_ERROR;
968 break;
969 }
970
971 ql_log(ql_log_warn, vha, 0x5046,
972 "Async-%s failed - portid=%02x%02x%02x status=%x "
973 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
974 type, fcport->d_id.b.domain,
975 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
976 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
977 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
978 le16_to_cpu(mbx->mb7));
979
980 logio_done:
981 lio->done(sp);
982 }
983
984 static void
985 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
986 sts_entry_t *pkt, int iocb_type)
987 {
988 const char func[] = "CT_IOCB";
989 const char *type;
990 struct qla_hw_data *ha = vha->hw;
991 srb_t *sp;
992 struct srb_ctx *sp_bsg;
993 struct fc_bsg_job *bsg_job;
994 uint16_t comp_status;
995
996 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
997 if (!sp)
998 return;
999
1000 sp_bsg = sp->ctx;
1001 bsg_job = sp_bsg->u.bsg_job;
1002
1003 type = NULL;
1004 switch (sp_bsg->type) {
1005 case SRB_CT_CMD:
1006 type = "ct pass-through";
1007 break;
1008 default:
1009 ql_log(ql_log_warn, vha, 0x5047,
1010 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
1011 return;
1012 }
1013
1014 comp_status = le16_to_cpu(pkt->comp_status);
1015
1016 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1017 * fc payload to the caller
1018 */
1019 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1020 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1021
1022 if (comp_status != CS_COMPLETE) {
1023 if (comp_status == CS_DATA_UNDERRUN) {
1024 bsg_job->reply->result = DID_OK << 16;
1025 bsg_job->reply->reply_payload_rcv_len =
1026 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1027
1028 ql_log(ql_log_warn, vha, 0x5048,
1029 "CT pass-through-%s error "
1030 "comp_status-status=0x%x total_byte = 0x%x.\n",
1031 type, comp_status,
1032 bsg_job->reply->reply_payload_rcv_len);
1033 } else {
1034 ql_log(ql_log_warn, vha, 0x5049,
1035 "CT pass-through-%s error "
1036 "comp_status-status=0x%x.\n", type, comp_status);
1037 bsg_job->reply->result = DID_ERROR << 16;
1038 bsg_job->reply->reply_payload_rcv_len = 0;
1039 }
1040 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5058,
1041 (uint8_t *)pkt, sizeof(*pkt));
1042 } else {
1043 bsg_job->reply->result = DID_OK << 16;
1044 bsg_job->reply->reply_payload_rcv_len =
1045 bsg_job->reply_payload.payload_len;
1046 bsg_job->reply_len = 0;
1047 }
1048
1049 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1050 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1051
1052 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1053 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1054
1055 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1056 kfree(sp->fcport);
1057
1058 kfree(sp->ctx);
1059 mempool_free(sp, ha->srb_mempool);
1060 bsg_job->job_done(bsg_job);
1061 }
1062
1063 static void
1064 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1065 struct sts_entry_24xx *pkt, int iocb_type)
1066 {
1067 const char func[] = "ELS_CT_IOCB";
1068 const char *type;
1069 struct qla_hw_data *ha = vha->hw;
1070 srb_t *sp;
1071 struct srb_ctx *sp_bsg;
1072 struct fc_bsg_job *bsg_job;
1073 uint16_t comp_status;
1074 uint32_t fw_status[3];
1075 uint8_t* fw_sts_ptr;
1076
1077 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1078 if (!sp)
1079 return;
1080 sp_bsg = sp->ctx;
1081 bsg_job = sp_bsg->u.bsg_job;
1082
1083 type = NULL;
1084 switch (sp_bsg->type) {
1085 case SRB_ELS_CMD_RPT:
1086 case SRB_ELS_CMD_HST:
1087 type = "els";
1088 break;
1089 case SRB_CT_CMD:
1090 type = "ct pass-through";
1091 break;
1092 default:
1093 ql_log(ql_log_warn, vha, 0x503e,
1094 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
1095 return;
1096 }
1097
1098 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1099 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1100 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1101
1102 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1103 * fc payload to the caller
1104 */
1105 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1106 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1107
1108 if (comp_status != CS_COMPLETE) {
1109 if (comp_status == CS_DATA_UNDERRUN) {
1110 bsg_job->reply->result = DID_OK << 16;
1111 bsg_job->reply->reply_payload_rcv_len =
1112 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1113
1114 ql_log(ql_log_info, vha, 0x503f,
1115 "ELS-CT pass-through-%s error comp_status-status=0x%x "
1116 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1117 type, comp_status, fw_status[1], fw_status[2],
1118 le16_to_cpu(((struct els_sts_entry_24xx *)
1119 pkt)->total_byte_count));
1120 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1121 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1122 }
1123 else {
1124 ql_log(ql_log_info, vha, 0x5040,
1125 "ELS-CT pass-through-%s error comp_status-status=0x%x "
1126 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1127 type, comp_status,
1128 le16_to_cpu(((struct els_sts_entry_24xx *)
1129 pkt)->error_subcode_1),
1130 le16_to_cpu(((struct els_sts_entry_24xx *)
1131 pkt)->error_subcode_2));
1132 bsg_job->reply->result = DID_ERROR << 16;
1133 bsg_job->reply->reply_payload_rcv_len = 0;
1134 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1135 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1136 }
1137 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5056,
1138 (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 ql_log(ql_log_warn, vha, 0x5034,
1188 "Async-%s error entry - "
1189 "portid=%02x%02x%02x entry-status=%x.\n",
1190 type, fcport->d_id.b.domain, fcport->d_id.b.area,
1191 fcport->d_id.b.al_pa, logio->entry_status);
1192 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5059,
1193 (uint8_t *)logio, sizeof(*logio));
1194
1195 goto logio_done;
1196 }
1197
1198 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1199 ql_dbg(ql_dbg_async, vha, 0x5036,
1200 "Async-%s complete - portid=%02x%02x%02x "
1201 "iop0=%x.\n",
1202 type, fcport->d_id.b.domain, fcport->d_id.b.area,
1203 fcport->d_id.b.al_pa,
1204 le32_to_cpu(logio->io_parameter[0]));
1205
1206 data[0] = MBS_COMMAND_COMPLETE;
1207 if (ctx->type != SRB_LOGIN_CMD)
1208 goto logio_done;
1209
1210 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1211 if (iop[0] & BIT_4) {
1212 fcport->port_type = FCT_TARGET;
1213 if (iop[0] & BIT_8)
1214 fcport->flags |= FCF_FCP2_DEVICE;
1215 } else if (iop[0] & BIT_5)
1216 fcport->port_type = FCT_INITIATOR;
1217
1218 if (logio->io_parameter[7] || logio->io_parameter[8])
1219 fcport->supported_classes |= FC_COS_CLASS2;
1220 if (logio->io_parameter[9] || logio->io_parameter[10])
1221 fcport->supported_classes |= FC_COS_CLASS3;
1222
1223 goto logio_done;
1224 }
1225
1226 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1227 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1228 switch (iop[0]) {
1229 case LSC_SCODE_PORTID_USED:
1230 data[0] = MBS_PORT_ID_USED;
1231 data[1] = LSW(iop[1]);
1232 break;
1233 case LSC_SCODE_NPORT_USED:
1234 data[0] = MBS_LOOP_ID_USED;
1235 break;
1236 default:
1237 data[0] = MBS_COMMAND_ERROR;
1238 break;
1239 }
1240
1241 ql_dbg(ql_dbg_async, vha, 0x5037,
1242 "Async-%s failed - portid=%02x%02x%02x comp=%x "
1243 "iop0=%x iop1=%x.\n",
1244 type, fcport->d_id.b.domain,
1245 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1246 le16_to_cpu(logio->comp_status),
1247 le32_to_cpu(logio->io_parameter[0]),
1248 le32_to_cpu(logio->io_parameter[1]));
1249
1250 logio_done:
1251 lio->done(sp);
1252 }
1253
1254 static void
1255 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1256 struct tsk_mgmt_entry *tsk)
1257 {
1258 const char func[] = "TMF-IOCB";
1259 const char *type;
1260 fc_port_t *fcport;
1261 srb_t *sp;
1262 struct srb_iocb *iocb;
1263 struct srb_ctx *ctx;
1264 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1265 int error = 1;
1266
1267 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1268 if (!sp)
1269 return;
1270
1271 ctx = sp->ctx;
1272 iocb = ctx->u.iocb_cmd;
1273 type = ctx->name;
1274 fcport = sp->fcport;
1275
1276 if (sts->entry_status) {
1277 ql_log(ql_log_warn, vha, 0x5038,
1278 "Async-%s error - entry-status(%x).\n",
1279 type, sts->entry_status);
1280 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1281 ql_log(ql_log_warn, vha, 0x5039,
1282 "Async-%s error - completion status(%x).\n",
1283 type, sts->comp_status);
1284 } else if (!(le16_to_cpu(sts->scsi_status) &
1285 SS_RESPONSE_INFO_LEN_VALID)) {
1286 ql_log(ql_log_warn, vha, 0x503a,
1287 "Async-%s error - no response info(%x).\n",
1288 type, sts->scsi_status);
1289 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1290 ql_log(ql_log_warn, vha, 0x503b,
1291 "Async-%s error - not enough response(%d).\n",
1292 type, sts->rsp_data_len);
1293 } else if (sts->data[3]) {
1294 ql_log(ql_log_warn, vha, 0x503c,
1295 "Async-%s error - response(%x).\n",
1296 type, sts->data[3]);
1297 } else {
1298 error = 0;
1299 }
1300
1301 if (error) {
1302 iocb->u.tmf.data = error;
1303 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1304 (uint8_t *)sts, sizeof(*sts));
1305 }
1306
1307 iocb->done(sp);
1308 }
1309
1310 /**
1311 * qla2x00_process_response_queue() - Process response queue entries.
1312 * @ha: SCSI driver HA context
1313 */
1314 void
1315 qla2x00_process_response_queue(struct rsp_que *rsp)
1316 {
1317 struct scsi_qla_host *vha;
1318 struct qla_hw_data *ha = rsp->hw;
1319 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1320 sts_entry_t *pkt;
1321 uint16_t handle_cnt;
1322 uint16_t cnt;
1323
1324 vha = pci_get_drvdata(ha->pdev);
1325
1326 if (!vha->flags.online)
1327 return;
1328
1329 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1330 pkt = (sts_entry_t *)rsp->ring_ptr;
1331
1332 rsp->ring_index++;
1333 if (rsp->ring_index == rsp->length) {
1334 rsp->ring_index = 0;
1335 rsp->ring_ptr = rsp->ring;
1336 } else {
1337 rsp->ring_ptr++;
1338 }
1339
1340 if (pkt->entry_status != 0) {
1341 ql_log(ql_log_warn, vha, 0x5035,
1342 "Process error entry.\n");
1343
1344 qla2x00_error_entry(vha, rsp, pkt);
1345 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1346 wmb();
1347 continue;
1348 }
1349
1350 switch (pkt->entry_type) {
1351 case STATUS_TYPE:
1352 qla2x00_status_entry(vha, rsp, pkt);
1353 break;
1354 case STATUS_TYPE_21:
1355 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1356 for (cnt = 0; cnt < handle_cnt; cnt++) {
1357 qla2x00_process_completed_request(vha, rsp->req,
1358 ((sts21_entry_t *)pkt)->handle[cnt]);
1359 }
1360 break;
1361 case STATUS_TYPE_22:
1362 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1363 for (cnt = 0; cnt < handle_cnt; cnt++) {
1364 qla2x00_process_completed_request(vha, rsp->req,
1365 ((sts22_entry_t *)pkt)->handle[cnt]);
1366 }
1367 break;
1368 case STATUS_CONT_TYPE:
1369 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1370 break;
1371 case MBX_IOCB_TYPE:
1372 qla2x00_mbx_iocb_entry(vha, rsp->req,
1373 (struct mbx_entry *)pkt);
1374 break;
1375 case CT_IOCB_TYPE:
1376 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1377 break;
1378 default:
1379 /* Type Not Supported. */
1380 ql_log(ql_log_warn, vha, 0x504a,
1381 "Received unknown response pkt type %x "
1382 "entry status=%x.\n",
1383 pkt->entry_type, pkt->entry_status);
1384 break;
1385 }
1386 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1387 wmb();
1388 }
1389
1390 /* Adjust ring index */
1391 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1392 }
1393
1394 static inline void
1395
1396 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1397 uint32_t sense_len, struct rsp_que *rsp)
1398 {
1399 struct scsi_qla_host *vha = sp->fcport->vha;
1400 struct scsi_cmnd *cp = sp->cmd;
1401
1402 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1403 sense_len = SCSI_SENSE_BUFFERSIZE;
1404
1405 sp->request_sense_length = sense_len;
1406 sp->request_sense_ptr = cp->sense_buffer;
1407 if (sp->request_sense_length > par_sense_len)
1408 sense_len = par_sense_len;
1409
1410 memcpy(cp->sense_buffer, sense_data, sense_len);
1411
1412 sp->request_sense_ptr += sense_len;
1413 sp->request_sense_length -= sense_len;
1414 if (sp->request_sense_length != 0)
1415 rsp->status_srb = sp;
1416
1417 ql_dbg(ql_dbg_io, vha, 0x301c,
1418 "Check condition Sense data, scsi(%ld:%d:%d:%d) cmd=%p.\n",
1419 sp->fcport->vha->host_no, cp->device->channel, cp->device->id,
1420 cp->device->lun, cp);
1421 if (sense_len)
1422 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1423 cp->sense_buffer, sense_len);
1424 }
1425
1426 struct scsi_dif_tuple {
1427 __be16 guard; /* Checksum */
1428 __be16 app_tag; /* APPL identifer */
1429 __be32 ref_tag; /* Target LBA or indirect LBA */
1430 };
1431
1432 /*
1433 * Checks the guard or meta-data for the type of error
1434 * detected by the HBA. In case of errors, we set the
1435 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1436 * to indicate to the kernel that the HBA detected error.
1437 */
1438 static inline void
1439 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1440 {
1441 struct scsi_qla_host *vha = sp->fcport->vha;
1442 struct scsi_cmnd *cmd = sp->cmd;
1443 struct scsi_dif_tuple *ep =
1444 (struct scsi_dif_tuple *)&sts24->data[20];
1445 struct scsi_dif_tuple *ap =
1446 (struct scsi_dif_tuple *)&sts24->data[12];
1447 uint32_t e_ref_tag, a_ref_tag;
1448 uint16_t e_app_tag, a_app_tag;
1449 uint16_t e_guard, a_guard;
1450
1451 e_ref_tag = be32_to_cpu(ep->ref_tag);
1452 a_ref_tag = be32_to_cpu(ap->ref_tag);
1453 e_app_tag = be16_to_cpu(ep->app_tag);
1454 a_app_tag = be16_to_cpu(ap->app_tag);
1455 e_guard = be16_to_cpu(ep->guard);
1456 a_guard = be16_to_cpu(ap->guard);
1457
1458 ql_dbg(ql_dbg_io, vha, 0x3023,
1459 "iocb(s) %p Returned STATUS.\n", sts24);
1460
1461 ql_dbg(ql_dbg_io, vha, 0x3024,
1462 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1463 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1464 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1465 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1466 a_app_tag, e_app_tag, a_guard, e_guard);
1467
1468 /* check guard */
1469 if (e_guard != a_guard) {
1470 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1471 0x10, 0x1);
1472 set_driver_byte(cmd, DRIVER_SENSE);
1473 set_host_byte(cmd, DID_ABORT);
1474 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1475 return;
1476 }
1477
1478 /* check appl tag */
1479 if (e_app_tag != a_app_tag) {
1480 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1481 0x10, 0x2);
1482 set_driver_byte(cmd, DRIVER_SENSE);
1483 set_host_byte(cmd, DID_ABORT);
1484 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1485 return;
1486 }
1487
1488 /* check ref tag */
1489 if (e_ref_tag != a_ref_tag) {
1490 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1491 0x10, 0x3);
1492 set_driver_byte(cmd, DRIVER_SENSE);
1493 set_host_byte(cmd, DID_ABORT);
1494 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1495 return;
1496 }
1497 }
1498
1499 /**
1500 * qla2x00_status_entry() - Process a Status IOCB entry.
1501 * @ha: SCSI driver HA context
1502 * @pkt: Entry pointer
1503 */
1504 static void
1505 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1506 {
1507 srb_t *sp;
1508 fc_port_t *fcport;
1509 struct scsi_cmnd *cp;
1510 sts_entry_t *sts;
1511 struct sts_entry_24xx *sts24;
1512 uint16_t comp_status;
1513 uint16_t scsi_status;
1514 uint16_t ox_id;
1515 uint8_t lscsi_status;
1516 int32_t resid;
1517 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1518 fw_resid_len;
1519 uint8_t *rsp_info, *sense_data;
1520 struct qla_hw_data *ha = vha->hw;
1521 uint32_t handle;
1522 uint16_t que;
1523 struct req_que *req;
1524 int logit = 1;
1525
1526 sts = (sts_entry_t *) pkt;
1527 sts24 = (struct sts_entry_24xx *) pkt;
1528 if (IS_FWI2_CAPABLE(ha)) {
1529 comp_status = le16_to_cpu(sts24->comp_status);
1530 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1531 } else {
1532 comp_status = le16_to_cpu(sts->comp_status);
1533 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1534 }
1535 handle = (uint32_t) LSW(sts->handle);
1536 que = MSW(sts->handle);
1537 req = ha->req_q_map[que];
1538
1539 /* Fast path completion. */
1540 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1541 qla2x00_process_completed_request(vha, req, handle);
1542
1543 return;
1544 }
1545
1546 /* Validate handle. */
1547 if (handle < MAX_OUTSTANDING_COMMANDS) {
1548 sp = req->outstanding_cmds[handle];
1549 req->outstanding_cmds[handle] = NULL;
1550 } else
1551 sp = NULL;
1552
1553 if (sp == NULL) {
1554 ql_log(ql_log_warn, vha, 0x3017,
1555 "Invalid status handle (0x%x).\n", sts->handle);
1556
1557 if (IS_QLA82XX(ha))
1558 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1559 else
1560 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1561 qla2xxx_wake_dpc(vha);
1562 return;
1563 }
1564 cp = sp->cmd;
1565 if (cp == NULL) {
1566 ql_log(ql_log_warn, vha, 0x3018,
1567 "Command already returned (0x%x/%p).\n",
1568 sts->handle, sp);
1569
1570 return;
1571 }
1572
1573 lscsi_status = scsi_status & STATUS_MASK;
1574
1575 fcport = sp->fcport;
1576
1577 ox_id = 0;
1578 sense_len = par_sense_len = rsp_info_len = resid_len =
1579 fw_resid_len = 0;
1580 if (IS_FWI2_CAPABLE(ha)) {
1581 if (scsi_status & SS_SENSE_LEN_VALID)
1582 sense_len = le32_to_cpu(sts24->sense_len);
1583 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1584 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1585 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1586 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1587 if (comp_status == CS_DATA_UNDERRUN)
1588 fw_resid_len = le32_to_cpu(sts24->residual_len);
1589 rsp_info = sts24->data;
1590 sense_data = sts24->data;
1591 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1592 ox_id = le16_to_cpu(sts24->ox_id);
1593 par_sense_len = sizeof(sts24->data);
1594 } else {
1595 if (scsi_status & SS_SENSE_LEN_VALID)
1596 sense_len = le16_to_cpu(sts->req_sense_length);
1597 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1598 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1599 resid_len = le32_to_cpu(sts->residual_length);
1600 rsp_info = sts->rsp_info;
1601 sense_data = sts->req_sense_data;
1602 par_sense_len = sizeof(sts->req_sense_data);
1603 }
1604
1605 /* Check for any FCP transport errors. */
1606 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1607 /* Sense data lies beyond any FCP RESPONSE data. */
1608 if (IS_FWI2_CAPABLE(ha)) {
1609 sense_data += rsp_info_len;
1610 par_sense_len -= rsp_info_len;
1611 }
1612 if (rsp_info_len > 3 && rsp_info[3]) {
1613 ql_log(ql_log_warn, vha, 0x3019,
1614 "FCP I/O protocol failure (0x%x/0x%x).\n",
1615 rsp_info_len, rsp_info[3]);
1616
1617 cp->result = DID_BUS_BUSY << 16;
1618 goto out;
1619 }
1620 }
1621
1622 /* Check for overrun. */
1623 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1624 scsi_status & SS_RESIDUAL_OVER)
1625 comp_status = CS_DATA_OVERRUN;
1626
1627 /*
1628 * Based on Host and scsi status generate status code for Linux
1629 */
1630 switch (comp_status) {
1631 case CS_COMPLETE:
1632 case CS_QUEUE_FULL:
1633 if (scsi_status == 0) {
1634 cp->result = DID_OK << 16;
1635 break;
1636 }
1637 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1638 resid = resid_len;
1639 scsi_set_resid(cp, resid);
1640
1641 if (!lscsi_status &&
1642 ((unsigned)(scsi_bufflen(cp) - resid) <
1643 cp->underflow)) {
1644 ql_log(ql_log_warn, vha, 0x301a,
1645 "Mid-layer underflow "
1646 "detected (0x%x of 0x%x bytes).\n",
1647 resid, scsi_bufflen(cp));
1648
1649 cp->result = DID_ERROR << 16;
1650 break;
1651 }
1652 }
1653 cp->result = DID_OK << 16 | lscsi_status;
1654
1655 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1656 ql_log(ql_log_warn, vha, 0x301b,
1657 "QUEUE FULL detected.\n");
1658 break;
1659 }
1660 logit = 0;
1661 if (lscsi_status != SS_CHECK_CONDITION)
1662 break;
1663
1664 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1665 if (!(scsi_status & SS_SENSE_LEN_VALID))
1666 break;
1667
1668 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1669 rsp);
1670 break;
1671
1672 case CS_DATA_UNDERRUN:
1673 /* Use F/W calculated residual length. */
1674 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1675 scsi_set_resid(cp, resid);
1676 if (scsi_status & SS_RESIDUAL_UNDER) {
1677 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1678 ql_log(ql_log_warn, vha, 0x301d,
1679 "Dropped frame(s) detected "
1680 "(0x%x of 0x%x bytes).\n",
1681 resid, scsi_bufflen(cp));
1682
1683 cp->result = DID_ERROR << 16 | lscsi_status;
1684 break;
1685 }
1686
1687 if (!lscsi_status &&
1688 ((unsigned)(scsi_bufflen(cp) - resid) <
1689 cp->underflow)) {
1690 ql_log(ql_log_warn, vha, 0x301e,
1691 "Mid-layer underflow "
1692 "detected (0x%x of 0x%x bytes).\n",
1693 resid, scsi_bufflen(cp));
1694
1695 cp->result = DID_ERROR << 16;
1696 break;
1697 }
1698 } else {
1699 ql_log(ql_log_warn, vha, 0x301f,
1700 "Dropped frame(s) detected (0x%x "
1701 "of 0x%x bytes).\n", resid, scsi_bufflen(cp));
1702
1703 cp->result = DID_ERROR << 16 | lscsi_status;
1704 goto check_scsi_status;
1705 }
1706
1707 cp->result = DID_OK << 16 | lscsi_status;
1708 logit = 0;
1709
1710 check_scsi_status:
1711 /*
1712 * Check to see if SCSI Status is non zero. If so report SCSI
1713 * Status.
1714 */
1715 if (lscsi_status != 0) {
1716 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1717 ql_log(ql_log_warn, vha, 0x3020,
1718 "QUEUE FULL detected.\n");
1719 logit = 1;
1720 break;
1721 }
1722 if (lscsi_status != SS_CHECK_CONDITION)
1723 break;
1724
1725 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1726 if (!(scsi_status & SS_SENSE_LEN_VALID))
1727 break;
1728
1729 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1730 sense_len, rsp);
1731 }
1732 break;
1733
1734 case CS_PORT_LOGGED_OUT:
1735 case CS_PORT_CONFIG_CHG:
1736 case CS_PORT_BUSY:
1737 case CS_INCOMPLETE:
1738 case CS_PORT_UNAVAILABLE:
1739 case CS_TIMEOUT:
1740 case CS_RESET:
1741
1742 /*
1743 * We are going to have the fc class block the rport
1744 * while we try to recover so instruct the mid layer
1745 * to requeue until the class decides how to handle this.
1746 */
1747 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1748
1749 if (comp_status == CS_TIMEOUT) {
1750 if (IS_FWI2_CAPABLE(ha))
1751 break;
1752 else if ((le16_to_cpu(sts->status_flags) &
1753 SF_LOGOUT_SENT) == 0)
1754 break;
1755 }
1756
1757 ql_dbg(ql_dbg_io, vha, 0x3021,
1758 "Port down status: port-state=0x%x.\n",
1759 atomic_read(&fcport->state));
1760
1761 if (atomic_read(&fcport->state) == FCS_ONLINE)
1762 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1763 break;
1764
1765 case CS_ABORTED:
1766 cp->result = DID_RESET << 16;
1767 break;
1768
1769 case CS_DIF_ERROR:
1770 qla2x00_handle_dif_error(sp, sts24);
1771 break;
1772 default:
1773 cp->result = DID_ERROR << 16;
1774 break;
1775 }
1776
1777 out:
1778 if (logit)
1779 ql_dbg(ql_dbg_io, vha, 0x3022,
1780 "FCP command status: 0x%x-0x%x (0x%x) "
1781 "oxid=0x%x cdb=%02x%02x%02x len=0x%x "
1782 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
1783 comp_status, scsi_status, cp->result, ox_id, cp->cmnd[0],
1784 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len,
1785 resid_len, fw_resid_len);
1786
1787 if (rsp->status_srb == NULL)
1788 qla2x00_sp_compl(ha, sp);
1789 }
1790
1791 /**
1792 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1793 * @ha: SCSI driver HA context
1794 * @pkt: Entry pointer
1795 *
1796 * Extended sense data.
1797 */
1798 static void
1799 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1800 {
1801 uint8_t sense_sz = 0;
1802 struct qla_hw_data *ha = rsp->hw;
1803 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1804 srb_t *sp = rsp->status_srb;
1805 struct scsi_cmnd *cp;
1806
1807 if (sp != NULL && sp->request_sense_length != 0) {
1808 cp = sp->cmd;
1809 if (cp == NULL) {
1810 ql_log(ql_log_warn, vha, 0x3025,
1811 "cmd is NULL: already returned to OS (sp=%p).\n",
1812 sp);
1813
1814 rsp->status_srb = NULL;
1815 return;
1816 }
1817
1818 if (sp->request_sense_length > sizeof(pkt->data)) {
1819 sense_sz = sizeof(pkt->data);
1820 } else {
1821 sense_sz = sp->request_sense_length;
1822 }
1823
1824 /* Move sense data. */
1825 if (IS_FWI2_CAPABLE(ha))
1826 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1827 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1828 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
1829 sp->request_sense_ptr, sense_sz);
1830
1831 sp->request_sense_ptr += sense_sz;
1832 sp->request_sense_length -= sense_sz;
1833
1834 /* Place command on done queue. */
1835 if (sp->request_sense_length == 0) {
1836 rsp->status_srb = NULL;
1837 qla2x00_sp_compl(ha, sp);
1838 }
1839 }
1840 }
1841
1842 /**
1843 * qla2x00_error_entry() - Process an error entry.
1844 * @ha: SCSI driver HA context
1845 * @pkt: Entry pointer
1846 */
1847 static void
1848 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1849 {
1850 srb_t *sp;
1851 struct qla_hw_data *ha = vha->hw;
1852 uint32_t handle = LSW(pkt->handle);
1853 uint16_t que = MSW(pkt->handle);
1854 struct req_que *req = ha->req_q_map[que];
1855
1856 if (pkt->entry_status & RF_INV_E_ORDER)
1857 ql_dbg(ql_dbg_async, vha, 0x502a,
1858 "Invalid Entry Order.\n");
1859 else if (pkt->entry_status & RF_INV_E_COUNT)
1860 ql_dbg(ql_dbg_async, vha, 0x502b,
1861 "Invalid Entry Count.\n");
1862 else if (pkt->entry_status & RF_INV_E_PARAM)
1863 ql_dbg(ql_dbg_async, vha, 0x502c,
1864 "Invalid Entry Parameter.\n");
1865 else if (pkt->entry_status & RF_INV_E_TYPE)
1866 ql_dbg(ql_dbg_async, vha, 0x502d,
1867 "Invalid Entry Type.\n");
1868 else if (pkt->entry_status & RF_BUSY)
1869 ql_dbg(ql_dbg_async, vha, 0x502e,
1870 "Busy.\n");
1871 else
1872 ql_dbg(ql_dbg_async, vha, 0x502f,
1873 "UNKNOWN flag error.\n");
1874
1875 /* Validate handle. */
1876 if (handle < MAX_OUTSTANDING_COMMANDS)
1877 sp = req->outstanding_cmds[handle];
1878 else
1879 sp = NULL;
1880
1881 if (sp) {
1882 /* Free outstanding command slot. */
1883 req->outstanding_cmds[handle] = NULL;
1884
1885 /* Bad payload or header */
1886 if (pkt->entry_status &
1887 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1888 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1889 sp->cmd->result = DID_ERROR << 16;
1890 } else if (pkt->entry_status & RF_BUSY) {
1891 sp->cmd->result = DID_BUS_BUSY << 16;
1892 } else {
1893 sp->cmd->result = DID_ERROR << 16;
1894 }
1895 qla2x00_sp_compl(ha, sp);
1896
1897 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1898 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
1899 || pkt->entry_type == COMMAND_TYPE_6) {
1900 ql_log(ql_log_warn, vha, 0x5030,
1901 "Error entry - invalid handle.\n");
1902
1903 if (IS_QLA82XX(ha))
1904 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1905 else
1906 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1907 qla2xxx_wake_dpc(vha);
1908 }
1909 }
1910
1911 /**
1912 * qla24xx_mbx_completion() - Process mailbox command completions.
1913 * @ha: SCSI driver HA context
1914 * @mb0: Mailbox0 register
1915 */
1916 static void
1917 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1918 {
1919 uint16_t cnt;
1920 uint16_t __iomem *wptr;
1921 struct qla_hw_data *ha = vha->hw;
1922 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1923
1924 /* Load return mailbox registers. */
1925 ha->flags.mbox_int = 1;
1926 ha->mailbox_out[0] = mb0;
1927 wptr = (uint16_t __iomem *)&reg->mailbox1;
1928
1929 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1930 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1931 wptr++;
1932 }
1933
1934 if (ha->mcp) {
1935 ql_dbg(ql_dbg_async, vha, 0x504d,
1936 "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
1937 } else {
1938 ql_dbg(ql_dbg_async, vha, 0x504e,
1939 "MBX pointer ERROR.\n");
1940 }
1941 }
1942
1943 /**
1944 * qla24xx_process_response_queue() - Process response queue entries.
1945 * @ha: SCSI driver HA context
1946 */
1947 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1948 struct rsp_que *rsp)
1949 {
1950 struct sts_entry_24xx *pkt;
1951 struct qla_hw_data *ha = vha->hw;
1952
1953 if (!vha->flags.online)
1954 return;
1955
1956 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1957 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
1958
1959 rsp->ring_index++;
1960 if (rsp->ring_index == rsp->length) {
1961 rsp->ring_index = 0;
1962 rsp->ring_ptr = rsp->ring;
1963 } else {
1964 rsp->ring_ptr++;
1965 }
1966
1967 if (pkt->entry_status != 0) {
1968 ql_dbg(ql_dbg_async, vha, 0x5029,
1969 "Process error entry.\n");
1970
1971 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
1972 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1973 wmb();
1974 continue;
1975 }
1976
1977 switch (pkt->entry_type) {
1978 case STATUS_TYPE:
1979 qla2x00_status_entry(vha, rsp, pkt);
1980 break;
1981 case STATUS_CONT_TYPE:
1982 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1983 break;
1984 case VP_RPT_ID_IOCB_TYPE:
1985 qla24xx_report_id_acquisition(vha,
1986 (struct vp_rpt_id_entry_24xx *)pkt);
1987 break;
1988 case LOGINOUT_PORT_IOCB_TYPE:
1989 qla24xx_logio_entry(vha, rsp->req,
1990 (struct logio_entry_24xx *)pkt);
1991 break;
1992 case TSK_MGMT_IOCB_TYPE:
1993 qla24xx_tm_iocb_entry(vha, rsp->req,
1994 (struct tsk_mgmt_entry *)pkt);
1995 break;
1996 case CT_IOCB_TYPE:
1997 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1998 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
1999 break;
2000 case ELS_IOCB_TYPE:
2001 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2002 break;
2003 default:
2004 /* Type Not Supported. */
2005 ql_dbg(ql_dbg_async, vha, 0x5042,
2006 "Received unknown response pkt type %x "
2007 "entry status=%x.\n",
2008 pkt->entry_type, pkt->entry_status);
2009 break;
2010 }
2011 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2012 wmb();
2013 }
2014
2015 /* Adjust ring index */
2016 if (IS_QLA82XX(ha)) {
2017 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2018 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2019 } else
2020 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2021 }
2022
2023 static void
2024 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2025 {
2026 int rval;
2027 uint32_t cnt;
2028 struct qla_hw_data *ha = vha->hw;
2029 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2030
2031 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2032 return;
2033
2034 rval = QLA_SUCCESS;
2035 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2036 RD_REG_DWORD(&reg->iobase_addr);
2037 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2038 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2039 rval == QLA_SUCCESS; cnt--) {
2040 if (cnt) {
2041 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2042 udelay(10);
2043 } else
2044 rval = QLA_FUNCTION_TIMEOUT;
2045 }
2046 if (rval == QLA_SUCCESS)
2047 goto next_test;
2048
2049 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2050 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2051 rval == QLA_SUCCESS; cnt--) {
2052 if (cnt) {
2053 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2054 udelay(10);
2055 } else
2056 rval = QLA_FUNCTION_TIMEOUT;
2057 }
2058 if (rval != QLA_SUCCESS)
2059 goto done;
2060
2061 next_test:
2062 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2063 ql_log(ql_log_info, vha, 0x504c,
2064 "Additional code -- 0x55AA.\n");
2065
2066 done:
2067 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2068 RD_REG_DWORD(&reg->iobase_window);
2069 }
2070
2071 /**
2072 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2073 * @irq:
2074 * @dev_id: SCSI driver HA context
2075 *
2076 * Called by system whenever the host adapter generates an interrupt.
2077 *
2078 * Returns handled flag.
2079 */
2080 irqreturn_t
2081 qla24xx_intr_handler(int irq, void *dev_id)
2082 {
2083 scsi_qla_host_t *vha;
2084 struct qla_hw_data *ha;
2085 struct device_reg_24xx __iomem *reg;
2086 int status;
2087 unsigned long iter;
2088 uint32_t stat;
2089 uint32_t hccr;
2090 uint16_t mb[4];
2091 struct rsp_que *rsp;
2092 unsigned long flags;
2093
2094 rsp = (struct rsp_que *) dev_id;
2095 if (!rsp) {
2096 printk(KERN_INFO
2097 "%s(): NULL response queue pointer.\n", __func__);
2098 return IRQ_NONE;
2099 }
2100
2101 ha = rsp->hw;
2102 reg = &ha->iobase->isp24;
2103 status = 0;
2104
2105 if (unlikely(pci_channel_offline(ha->pdev)))
2106 return IRQ_HANDLED;
2107
2108 spin_lock_irqsave(&ha->hardware_lock, flags);
2109 vha = pci_get_drvdata(ha->pdev);
2110 for (iter = 50; iter--; ) {
2111 stat = RD_REG_DWORD(&reg->host_status);
2112 if (stat & HSRX_RISC_PAUSED) {
2113 if (unlikely(pci_channel_offline(ha->pdev)))
2114 break;
2115
2116 hccr = RD_REG_DWORD(&reg->hccr);
2117
2118 ql_log(ql_log_warn, vha, 0x504b,
2119 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2120 hccr);
2121
2122 qla2xxx_check_risc_status(vha);
2123
2124 ha->isp_ops->fw_dump(vha, 1);
2125 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2126 break;
2127 } else if ((stat & HSRX_RISC_INT) == 0)
2128 break;
2129
2130 switch (stat & 0xff) {
2131 case 0x1:
2132 case 0x2:
2133 case 0x10:
2134 case 0x11:
2135 qla24xx_mbx_completion(vha, MSW(stat));
2136 status |= MBX_INTERRUPT;
2137
2138 break;
2139 case 0x12:
2140 mb[0] = MSW(stat);
2141 mb[1] = RD_REG_WORD(&reg->mailbox1);
2142 mb[2] = RD_REG_WORD(&reg->mailbox2);
2143 mb[3] = RD_REG_WORD(&reg->mailbox3);
2144 qla2x00_async_event(vha, rsp, mb);
2145 break;
2146 case 0x13:
2147 case 0x14:
2148 qla24xx_process_response_queue(vha, rsp);
2149 break;
2150 default:
2151 ql_dbg(ql_dbg_async, vha, 0x504f,
2152 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2153 break;
2154 }
2155 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2156 RD_REG_DWORD_RELAXED(&reg->hccr);
2157 }
2158 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2159
2160 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2161 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2162 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2163 complete(&ha->mbx_intr_comp);
2164 }
2165
2166 return IRQ_HANDLED;
2167 }
2168
2169 static irqreturn_t
2170 qla24xx_msix_rsp_q(int irq, void *dev_id)
2171 {
2172 struct qla_hw_data *ha;
2173 struct rsp_que *rsp;
2174 struct device_reg_24xx __iomem *reg;
2175 struct scsi_qla_host *vha;
2176 unsigned long flags;
2177
2178 rsp = (struct rsp_que *) dev_id;
2179 if (!rsp) {
2180 printk(KERN_INFO
2181 "%s(): NULL response queue pointer.\n", __func__);
2182 return IRQ_NONE;
2183 }
2184 ha = rsp->hw;
2185 reg = &ha->iobase->isp24;
2186
2187 spin_lock_irqsave(&ha->hardware_lock, flags);
2188
2189 vha = pci_get_drvdata(ha->pdev);
2190 qla24xx_process_response_queue(vha, rsp);
2191 if (!ha->flags.disable_msix_handshake) {
2192 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2193 RD_REG_DWORD_RELAXED(&reg->hccr);
2194 }
2195 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2196
2197 return IRQ_HANDLED;
2198 }
2199
2200 static irqreturn_t
2201 qla25xx_msix_rsp_q(int irq, void *dev_id)
2202 {
2203 struct qla_hw_data *ha;
2204 struct rsp_que *rsp;
2205 struct device_reg_24xx __iomem *reg;
2206 unsigned long flags;
2207
2208 rsp = (struct rsp_que *) dev_id;
2209 if (!rsp) {
2210 printk(KERN_INFO
2211 "%s(): NULL response queue pointer.\n", __func__);
2212 return IRQ_NONE;
2213 }
2214 ha = rsp->hw;
2215
2216 /* Clear the interrupt, if enabled, for this response queue */
2217 if (rsp->options & ~BIT_6) {
2218 reg = &ha->iobase->isp24;
2219 spin_lock_irqsave(&ha->hardware_lock, flags);
2220 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2221 RD_REG_DWORD_RELAXED(&reg->hccr);
2222 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2223 }
2224 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2225
2226 return IRQ_HANDLED;
2227 }
2228
2229 static irqreturn_t
2230 qla24xx_msix_default(int irq, void *dev_id)
2231 {
2232 scsi_qla_host_t *vha;
2233 struct qla_hw_data *ha;
2234 struct rsp_que *rsp;
2235 struct device_reg_24xx __iomem *reg;
2236 int status;
2237 uint32_t stat;
2238 uint32_t hccr;
2239 uint16_t mb[4];
2240 unsigned long flags;
2241
2242 rsp = (struct rsp_que *) dev_id;
2243 if (!rsp) {
2244 printk(KERN_INFO
2245 "%s(): NULL response queue pointer.\n", __func__);
2246 return IRQ_NONE;
2247 }
2248 ha = rsp->hw;
2249 reg = &ha->iobase->isp24;
2250 status = 0;
2251
2252 spin_lock_irqsave(&ha->hardware_lock, flags);
2253 vha = pci_get_drvdata(ha->pdev);
2254 do {
2255 stat = RD_REG_DWORD(&reg->host_status);
2256 if (stat & HSRX_RISC_PAUSED) {
2257 if (unlikely(pci_channel_offline(ha->pdev)))
2258 break;
2259
2260 hccr = RD_REG_DWORD(&reg->hccr);
2261
2262 ql_log(ql_log_info, vha, 0x5050,
2263 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2264 hccr);
2265
2266 qla2xxx_check_risc_status(vha);
2267
2268 ha->isp_ops->fw_dump(vha, 1);
2269 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2270 break;
2271 } else if ((stat & HSRX_RISC_INT) == 0)
2272 break;
2273
2274 switch (stat & 0xff) {
2275 case 0x1:
2276 case 0x2:
2277 case 0x10:
2278 case 0x11:
2279 qla24xx_mbx_completion(vha, MSW(stat));
2280 status |= MBX_INTERRUPT;
2281
2282 break;
2283 case 0x12:
2284 mb[0] = MSW(stat);
2285 mb[1] = RD_REG_WORD(&reg->mailbox1);
2286 mb[2] = RD_REG_WORD(&reg->mailbox2);
2287 mb[3] = RD_REG_WORD(&reg->mailbox3);
2288 qla2x00_async_event(vha, rsp, mb);
2289 break;
2290 case 0x13:
2291 case 0x14:
2292 qla24xx_process_response_queue(vha, rsp);
2293 break;
2294 default:
2295 ql_dbg(ql_dbg_async, vha, 0x5051,
2296 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2297 break;
2298 }
2299 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2300 } while (0);
2301 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2302
2303 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2304 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2305 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2306 complete(&ha->mbx_intr_comp);
2307 }
2308 return IRQ_HANDLED;
2309 }
2310
2311 /* Interrupt handling helpers. */
2312
2313 struct qla_init_msix_entry {
2314 const char *name;
2315 irq_handler_t handler;
2316 };
2317
2318 static struct qla_init_msix_entry msix_entries[3] = {
2319 { "qla2xxx (default)", qla24xx_msix_default },
2320 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2321 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2322 };
2323
2324 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2325 { "qla2xxx (default)", qla82xx_msix_default },
2326 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2327 };
2328
2329 static void
2330 qla24xx_disable_msix(struct qla_hw_data *ha)
2331 {
2332 int i;
2333 struct qla_msix_entry *qentry;
2334 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2335
2336 for (i = 0; i < ha->msix_count; i++) {
2337 qentry = &ha->msix_entries[i];
2338 if (qentry->have_irq)
2339 free_irq(qentry->vector, qentry->rsp);
2340 }
2341 pci_disable_msix(ha->pdev);
2342 kfree(ha->msix_entries);
2343 ha->msix_entries = NULL;
2344 ha->flags.msix_enabled = 0;
2345 ql_dbg(ql_dbg_init, vha, 0x0042,
2346 "Disabled the MSI.\n");
2347 }
2348
2349 static int
2350 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2351 {
2352 #define MIN_MSIX_COUNT 2
2353 int i, ret;
2354 struct msix_entry *entries;
2355 struct qla_msix_entry *qentry;
2356 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2357
2358 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2359 GFP_KERNEL);
2360 if (!entries) {
2361 ql_log(ql_log_warn, vha, 0x00bc,
2362 "Failed to allocate memory for msix_entry.\n");
2363 return -ENOMEM;
2364 }
2365
2366 for (i = 0; i < ha->msix_count; i++)
2367 entries[i].entry = i;
2368
2369 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2370 if (ret) {
2371 if (ret < MIN_MSIX_COUNT)
2372 goto msix_failed;
2373
2374 ql_log(ql_log_warn, vha, 0x00c6,
2375 "MSI-X: Failed to enable support "
2376 "-- %d/%d\n Retry with %d vectors.\n",
2377 ha->msix_count, ret, ret);
2378 ha->msix_count = ret;
2379 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2380 if (ret) {
2381 msix_failed:
2382 ql_log(ql_log_fatal, vha, 0x00c7,
2383 "MSI-X: Failed to enable support, "
2384 "giving up -- %d/%d.\n",
2385 ha->msix_count, ret);
2386 goto msix_out;
2387 }
2388 ha->max_rsp_queues = ha->msix_count - 1;
2389 }
2390 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2391 ha->msix_count, GFP_KERNEL);
2392 if (!ha->msix_entries) {
2393 ql_log(ql_log_fatal, vha, 0x00c8,
2394 "Failed to allocate memory for ha->msix_entries.\n");
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 ql_log(ql_log_fatal, vha, 0x00cb,
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 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2437 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2438 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2439 ql_dbg(ql_dbg_init, vha, 0x0055,
2440 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2441 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2442
2443 msix_out:
2444 kfree(entries);
2445 return ret;
2446 }
2447
2448 int
2449 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2450 {
2451 int ret;
2452 device_reg_t __iomem *reg = ha->iobase;
2453 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2454
2455 /* If possible, enable MSI-X. */
2456 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2457 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2458 goto skip_msi;
2459
2460 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2461 (ha->pdev->subsystem_device == 0x7040 ||
2462 ha->pdev->subsystem_device == 0x7041 ||
2463 ha->pdev->subsystem_device == 0x1705)) {
2464 ql_log(ql_log_warn, vha, 0x0034,
2465 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
2466 ha->pdev->subsystem_vendor,
2467 ha->pdev->subsystem_device);
2468 goto skip_msi;
2469 }
2470
2471 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
2472 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
2473 ql_log(ql_log_warn, vha, 0x0035,
2474 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
2475 ha->pdev->revision, ha->fw_attributes);
2476 goto skip_msix;
2477 }
2478
2479 ret = qla24xx_enable_msix(ha, rsp);
2480 if (!ret) {
2481 ql_dbg(ql_dbg_init, vha, 0x0036,
2482 "MSI-X: Enabled (0x%X, 0x%X).\n",
2483 ha->chip_revision, ha->fw_attributes);
2484 goto clear_risc_ints;
2485 }
2486 ql_log(ql_log_info, vha, 0x0037,
2487 "MSI-X Falling back-to MSI mode -%d.\n", ret);
2488 skip_msix:
2489
2490 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2491 !IS_QLA8001(ha))
2492 goto skip_msi;
2493
2494 ret = pci_enable_msi(ha->pdev);
2495 if (!ret) {
2496 ql_dbg(ql_dbg_init, vha, 0x0038,
2497 "MSI: Enabled.\n");
2498 ha->flags.msi_enabled = 1;
2499 } else
2500 ql_log(ql_log_warn, vha, 0x0039,
2501 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
2502 skip_msi:
2503
2504 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2505 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2506 QLA2XXX_DRIVER_NAME, rsp);
2507 if (ret) {
2508 ql_log(ql_log_warn, vha, 0x003a,
2509 "Failed to reserve interrupt %d already in use.\n",
2510 ha->pdev->irq);
2511 goto fail;
2512 }
2513
2514 clear_risc_ints:
2515
2516 /*
2517 * FIXME: Noted that 8014s were being dropped during NK testing.
2518 * Timing deltas during MSI-X/INTa transitions?
2519 */
2520 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2521 goto fail;
2522 spin_lock_irq(&ha->hardware_lock);
2523 if (IS_FWI2_CAPABLE(ha)) {
2524 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2525 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2526 } else {
2527 WRT_REG_WORD(&reg->isp.semaphore, 0);
2528 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2529 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2530 }
2531 spin_unlock_irq(&ha->hardware_lock);
2532
2533 fail:
2534 return ret;
2535 }
2536
2537 void
2538 qla2x00_free_irqs(scsi_qla_host_t *vha)
2539 {
2540 struct qla_hw_data *ha = vha->hw;
2541 struct rsp_que *rsp = ha->rsp_q_map[0];
2542
2543 if (ha->flags.msix_enabled)
2544 qla24xx_disable_msix(ha);
2545 else if (ha->flags.msi_enabled) {
2546 free_irq(ha->pdev->irq, rsp);
2547 pci_disable_msi(ha->pdev);
2548 } else
2549 free_irq(ha->pdev->irq, rsp);
2550 }
2551
2552
2553 int qla25xx_request_irq(struct rsp_que *rsp)
2554 {
2555 struct qla_hw_data *ha = rsp->hw;
2556 struct qla_init_msix_entry *intr = &msix_entries[2];
2557 struct qla_msix_entry *msix = rsp->msix;
2558 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2559 int ret;
2560
2561 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2562 if (ret) {
2563 ql_log(ql_log_fatal, vha, 0x00e6,
2564 "MSI-X: Unable to register handler -- %x/%d.\n",
2565 msix->vector, ret);
2566 return ret;
2567 }
2568 msix->have_irq = 1;
2569 msix->rsp = rsp;
2570 return ret;
2571 }