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USB: serial: fix whitespace issues
[zen-stable.git] / drivers / scsi / qla2xxx / qla_isr.c
blob2516adf1aeeaa946372ac137da595d37466418c7
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_down_timer, 0);
723 vha->flags.management_server_logged_in = 0;
724
725 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
726 set_bit(RSCN_UPDATE, &vha->dpc_flags);
727 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
728 break;
729
730 /* case MBA_RIO_RESPONSE: */
731 case MBA_ZIO_RESPONSE:
732 ql_dbg(ql_dbg_async, vha, 0x5015,
733 "[R|Z]IO update completion.\n");
734
735 if (IS_FWI2_CAPABLE(ha))
736 qla24xx_process_response_queue(vha, rsp);
737 else
738 qla2x00_process_response_queue(rsp);
739 break;
740
741 case MBA_DISCARD_RND_FRAME:
742 ql_dbg(ql_dbg_async, vha, 0x5016,
743 "Discard RND Frame -- %04x %04x %04x.\n",
744 mb[1], mb[2], mb[3]);
745 break;
746
747 case MBA_TRACE_NOTIFICATION:
748 ql_dbg(ql_dbg_async, vha, 0x5017,
749 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
750 break;
751
752 case MBA_ISP84XX_ALERT:
753 ql_dbg(ql_dbg_async, vha, 0x5018,
754 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
755 mb[1], mb[2], mb[3]);
756
757 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
758 switch (mb[1]) {
759 case A84_PANIC_RECOVERY:
760 ql_log(ql_log_info, vha, 0x5019,
761 "Alert 84XX: panic recovery %04x %04x.\n",
762 mb[2], mb[3]);
763 break;
764 case A84_OP_LOGIN_COMPLETE:
765 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
766 ql_log(ql_log_info, vha, 0x501a,
767 "Alert 84XX: firmware version %x.\n",
768 ha->cs84xx->op_fw_version);
769 break;
770 case A84_DIAG_LOGIN_COMPLETE:
771 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
772 ql_log(ql_log_info, vha, 0x501b,
773 "Alert 84XX: diagnostic firmware version %x.\n",
774 ha->cs84xx->diag_fw_version);
775 break;
776 case A84_GOLD_LOGIN_COMPLETE:
777 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
778 ha->cs84xx->fw_update = 1;
779 ql_log(ql_log_info, vha, 0x501c,
780 "Alert 84XX: gold firmware version %x.\n",
781 ha->cs84xx->gold_fw_version);
782 break;
783 default:
784 ql_log(ql_log_warn, vha, 0x501d,
785 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
786 mb[1], mb[2], mb[3]);
787 }
788 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
789 break;
790 case MBA_DCBX_START:
791 ql_dbg(ql_dbg_async, vha, 0x501e,
792 "DCBX Started -- %04x %04x %04x.\n",
793 mb[1], mb[2], mb[3]);
794 break;
795 case MBA_DCBX_PARAM_UPDATE:
796 ql_dbg(ql_dbg_async, vha, 0x501f,
797 "DCBX Parameters Updated -- %04x %04x %04x.\n",
798 mb[1], mb[2], mb[3]);
799 break;
800 case MBA_FCF_CONF_ERR:
801 ql_dbg(ql_dbg_async, vha, 0x5020,
802 "FCF Configuration Error -- %04x %04x %04x.\n",
803 mb[1], mb[2], mb[3]);
804 break;
805 case MBA_IDC_COMPLETE:
806 case MBA_IDC_NOTIFY:
807 case MBA_IDC_TIME_EXT:
808 qla81xx_idc_event(vha, mb[0], mb[1]);
809 break;
810 }
811
812 if (!vha->vp_idx && ha->num_vhosts)
813 qla2x00_alert_all_vps(rsp, mb);
814 }
815
816 /**
817 * qla2x00_process_completed_request() - Process a Fast Post response.
818 * @ha: SCSI driver HA context
819 * @index: SRB index
820 */
821 static void
822 qla2x00_process_completed_request(struct scsi_qla_host *vha,
823 struct req_que *req, uint32_t index)
824 {
825 srb_t *sp;
826 struct qla_hw_data *ha = vha->hw;
827
828 /* Validate handle. */
829 if (index >= MAX_OUTSTANDING_COMMANDS) {
830 ql_log(ql_log_warn, vha, 0x3014,
831 "Invalid SCSI command index (%x).\n", index);
832
833 if (IS_QLA82XX(ha))
834 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
835 else
836 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
837 return;
838 }
839
840 sp = req->outstanding_cmds[index];
841 if (sp) {
842 /* Free outstanding command slot. */
843 req->outstanding_cmds[index] = NULL;
844
845 /* Save ISP completion status */
846 sp->cmd->result = DID_OK << 16;
847 qla2x00_sp_compl(ha, sp);
848 } else {
849 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
850
851 if (IS_QLA82XX(ha))
852 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
853 else
854 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
855 }
856 }
857
858 static srb_t *
859 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
860 struct req_que *req, void *iocb)
861 {
862 struct qla_hw_data *ha = vha->hw;
863 sts_entry_t *pkt = iocb;
864 srb_t *sp = NULL;
865 uint16_t index;
866
867 index = LSW(pkt->handle);
868 if (index >= MAX_OUTSTANDING_COMMANDS) {
869 ql_log(ql_log_warn, vha, 0x5031,
870 "Invalid command index (%x).\n", index);
871 if (IS_QLA82XX(ha))
872 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
873 else
874 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
875 goto done;
876 }
877 sp = req->outstanding_cmds[index];
878 if (!sp) {
879 ql_log(ql_log_warn, vha, 0x5032,
880 "Invalid completion handle (%x) -- timed-out.\n", index);
881 return sp;
882 }
883 if (sp->handle != index) {
884 ql_log(ql_log_warn, vha, 0x5033,
885 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
886 return NULL;
887 }
888
889 req->outstanding_cmds[index] = NULL;
890
891 done:
892 return sp;
893 }
894
895 static void
896 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
897 struct mbx_entry *mbx)
898 {
899 const char func[] = "MBX-IOCB";
900 const char *type;
901 fc_port_t *fcport;
902 srb_t *sp;
903 struct srb_iocb *lio;
904 struct srb_ctx *ctx;
905 uint16_t *data;
906 uint16_t status;
907
908 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
909 if (!sp)
910 return;
911
912 ctx = sp->ctx;
913 lio = ctx->u.iocb_cmd;
914 type = ctx->name;
915 fcport = sp->fcport;
916 data = lio->u.logio.data;
917
918 data[0] = MBS_COMMAND_ERROR;
919 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
920 QLA_LOGIO_LOGIN_RETRIED : 0;
921 if (mbx->entry_status) {
922 ql_dbg(ql_dbg_async, vha, 0x5043,
923 "Async-%s error entry - portid=%02x%02x%02x "
924 "entry-status=%x status=%x state-flag=%x "
925 "status-flags=%x.\n",
926 type, fcport->d_id.b.domain, fcport->d_id.b.area,
927 fcport->d_id.b.al_pa, mbx->entry_status,
928 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
929 le16_to_cpu(mbx->status_flags));
930
931 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5057,
932 (uint8_t *)mbx, sizeof(*mbx));
933
934 goto logio_done;
935 }
936
937 status = le16_to_cpu(mbx->status);
938 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD &&
939 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
940 status = 0;
941 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
942 ql_dbg(ql_dbg_async, vha, 0x5045,
943 "Async-%s complete - portid=%02x%02x%02x mbx1=%x.\n",
944 type, fcport->d_id.b.domain, fcport->d_id.b.area,
945 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1));
946
947 data[0] = MBS_COMMAND_COMPLETE;
948 if (ctx->type == SRB_LOGIN_CMD) {
949 fcport->port_type = FCT_TARGET;
950 if (le16_to_cpu(mbx->mb1) & BIT_0)
951 fcport->port_type = FCT_INITIATOR;
952 else if (le16_to_cpu(mbx->mb1) & BIT_1)
953 fcport->flags |= FCF_FCP2_DEVICE;
954 }
955 goto logio_done;
956 }
957
958 data[0] = le16_to_cpu(mbx->mb0);
959 switch (data[0]) {
960 case MBS_PORT_ID_USED:
961 data[1] = le16_to_cpu(mbx->mb1);
962 break;
963 case MBS_LOOP_ID_USED:
964 break;
965 default:
966 data[0] = MBS_COMMAND_ERROR;
967 break;
968 }
969
970 ql_log(ql_log_warn, vha, 0x5046,
971 "Async-%s failed - portid=%02x%02x%02x status=%x "
972 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
973 type, fcport->d_id.b.domain,
974 fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
975 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
976 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
977 le16_to_cpu(mbx->mb7));
978
979 logio_done:
980 lio->done(sp);
981 }
982
983 static void
984 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
985 sts_entry_t *pkt, int iocb_type)
986 {
987 const char func[] = "CT_IOCB";
988 const char *type;
989 struct qla_hw_data *ha = vha->hw;
990 srb_t *sp;
991 struct srb_ctx *sp_bsg;
992 struct fc_bsg_job *bsg_job;
993 uint16_t comp_status;
994
995 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
996 if (!sp)
997 return;
998
999 sp_bsg = sp->ctx;
1000 bsg_job = sp_bsg->u.bsg_job;
1001
1002 type = NULL;
1003 switch (sp_bsg->type) {
1004 case SRB_CT_CMD:
1005 type = "ct pass-through";
1006 break;
1007 default:
1008 ql_log(ql_log_warn, vha, 0x5047,
1009 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
1010 return;
1011 }
1012
1013 comp_status = le16_to_cpu(pkt->comp_status);
1014
1015 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1016 * fc payload to the caller
1017 */
1018 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1019 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1020
1021 if (comp_status != CS_COMPLETE) {
1022 if (comp_status == CS_DATA_UNDERRUN) {
1023 bsg_job->reply->result = DID_OK << 16;
1024 bsg_job->reply->reply_payload_rcv_len =
1025 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1026
1027 ql_log(ql_log_warn, vha, 0x5048,
1028 "CT pass-through-%s error "
1029 "comp_status-status=0x%x total_byte = 0x%x.\n",
1030 type, comp_status,
1031 bsg_job->reply->reply_payload_rcv_len);
1032 } else {
1033 ql_log(ql_log_warn, vha, 0x5049,
1034 "CT pass-through-%s error "
1035 "comp_status-status=0x%x.\n", type, comp_status);
1036 bsg_job->reply->result = DID_ERROR << 16;
1037 bsg_job->reply->reply_payload_rcv_len = 0;
1038 }
1039 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5058,
1040 (uint8_t *)pkt, sizeof(*pkt));
1041 } else {
1042 bsg_job->reply->result = DID_OK << 16;
1043 bsg_job->reply->reply_payload_rcv_len =
1044 bsg_job->reply_payload.payload_len;
1045 bsg_job->reply_len = 0;
1046 }
1047
1048 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1049 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1050
1051 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1052 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1053
1054 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1055 kfree(sp->fcport);
1056
1057 kfree(sp->ctx);
1058 mempool_free(sp, ha->srb_mempool);
1059 bsg_job->job_done(bsg_job);
1060 }
1061
1062 static void
1063 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1064 struct sts_entry_24xx *pkt, int iocb_type)
1065 {
1066 const char func[] = "ELS_CT_IOCB";
1067 const char *type;
1068 struct qla_hw_data *ha = vha->hw;
1069 srb_t *sp;
1070 struct srb_ctx *sp_bsg;
1071 struct fc_bsg_job *bsg_job;
1072 uint16_t comp_status;
1073 uint32_t fw_status[3];
1074 uint8_t* fw_sts_ptr;
1075
1076 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1077 if (!sp)
1078 return;
1079 sp_bsg = sp->ctx;
1080 bsg_job = sp_bsg->u.bsg_job;
1081
1082 type = NULL;
1083 switch (sp_bsg->type) {
1084 case SRB_ELS_CMD_RPT:
1085 case SRB_ELS_CMD_HST:
1086 type = "els";
1087 break;
1088 case SRB_CT_CMD:
1089 type = "ct pass-through";
1090 break;
1091 default:
1092 ql_log(ql_log_warn, vha, 0x503e,
1093 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
1094 return;
1095 }
1096
1097 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1098 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1099 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1100
1101 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1102 * fc payload to the caller
1103 */
1104 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1105 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1106
1107 if (comp_status != CS_COMPLETE) {
1108 if (comp_status == CS_DATA_UNDERRUN) {
1109 bsg_job->reply->result = DID_OK << 16;
1110 bsg_job->reply->reply_payload_rcv_len =
1111 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1112
1113 ql_log(ql_log_info, vha, 0x503f,
1114 "ELS-CT pass-through-%s error comp_status-status=0x%x "
1115 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1116 type, comp_status, fw_status[1], fw_status[2],
1117 le16_to_cpu(((struct els_sts_entry_24xx *)
1118 pkt)->total_byte_count));
1119 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1120 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1121 }
1122 else {
1123 ql_log(ql_log_info, vha, 0x5040,
1124 "ELS-CT pass-through-%s error comp_status-status=0x%x "
1125 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1126 type, comp_status,
1127 le16_to_cpu(((struct els_sts_entry_24xx *)
1128 pkt)->error_subcode_1),
1129 le16_to_cpu(((struct els_sts_entry_24xx *)
1130 pkt)->error_subcode_2));
1131 bsg_job->reply->result = DID_ERROR << 16;
1132 bsg_job->reply->reply_payload_rcv_len = 0;
1133 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1134 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1135 }
1136 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5056,
1137 (uint8_t *)pkt, sizeof(*pkt));
1138 }
1139 else {
1140 bsg_job->reply->result = DID_OK << 16;
1141 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1142 bsg_job->reply_len = 0;
1143 }
1144
1145 dma_unmap_sg(&ha->pdev->dev,
1146 bsg_job->request_payload.sg_list,
1147 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1148 dma_unmap_sg(&ha->pdev->dev,
1149 bsg_job->reply_payload.sg_list,
1150 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1151 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1152 (sp_bsg->type == SRB_CT_CMD))
1153 kfree(sp->fcport);
1154 kfree(sp->ctx);
1155 mempool_free(sp, ha->srb_mempool);
1156 bsg_job->job_done(bsg_job);
1157 }
1158
1159 static void
1160 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1161 struct logio_entry_24xx *logio)
1162 {
1163 const char func[] = "LOGIO-IOCB";
1164 const char *type;
1165 fc_port_t *fcport;
1166 srb_t *sp;
1167 struct srb_iocb *lio;
1168 struct srb_ctx *ctx;
1169 uint16_t *data;
1170 uint32_t iop[2];
1171
1172 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1173 if (!sp)
1174 return;
1175
1176 ctx = sp->ctx;
1177 lio = ctx->u.iocb_cmd;
1178 type = ctx->name;
1179 fcport = sp->fcport;
1180 data = lio->u.logio.data;
1181
1182 data[0] = MBS_COMMAND_ERROR;
1183 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1184 QLA_LOGIO_LOGIN_RETRIED : 0;
1185 if (logio->entry_status) {
1186 ql_log(ql_log_warn, vha, 0x5034,
1187 "Async-%s error entry - "
1188 "portid=%02x%02x%02x entry-status=%x.\n",
1189 type, fcport->d_id.b.domain, fcport->d_id.b.area,
1190 fcport->d_id.b.al_pa, logio->entry_status);
1191 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5059,
1192 (uint8_t *)logio, sizeof(*logio));
1193
1194 goto logio_done;
1195 }
1196
1197 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1198 ql_dbg(ql_dbg_async, vha, 0x5036,
1199 "Async-%s complete - portid=%02x%02x%02x "
1200 "iop0=%x.\n",
1201 type, fcport->d_id.b.domain, fcport->d_id.b.area,
1202 fcport->d_id.b.al_pa,
1203 le32_to_cpu(logio->io_parameter[0]));
1204
1205 data[0] = MBS_COMMAND_COMPLETE;
1206 if (ctx->type != SRB_LOGIN_CMD)
1207 goto logio_done;
1208
1209 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1210 if (iop[0] & BIT_4) {
1211 fcport->port_type = FCT_TARGET;
1212 if (iop[0] & BIT_8)
1213 fcport->flags |= FCF_FCP2_DEVICE;
1214 } else if (iop[0] & BIT_5)
1215 fcport->port_type = FCT_INITIATOR;
1216
1217 if (logio->io_parameter[7] || logio->io_parameter[8])
1218 fcport->supported_classes |= FC_COS_CLASS2;
1219 if (logio->io_parameter[9] || logio->io_parameter[10])
1220 fcport->supported_classes |= FC_COS_CLASS3;
1221
1222 goto logio_done;
1223 }
1224
1225 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1226 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1227 switch (iop[0]) {
1228 case LSC_SCODE_PORTID_USED:
1229 data[0] = MBS_PORT_ID_USED;
1230 data[1] = LSW(iop[1]);
1231 break;
1232 case LSC_SCODE_NPORT_USED:
1233 data[0] = MBS_LOOP_ID_USED;
1234 break;
1235 default:
1236 data[0] = MBS_COMMAND_ERROR;
1237 break;
1238 }
1239
1240 ql_dbg(ql_dbg_async, vha, 0x5037,
1241 "Async-%s failed - portid=%02x%02x%02x comp=%x "
1242 "iop0=%x iop1=%x.\n",
1243 type, fcport->d_id.b.domain,
1244 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1245 le16_to_cpu(logio->comp_status),
1246 le32_to_cpu(logio->io_parameter[0]),
1247 le32_to_cpu(logio->io_parameter[1]));
1248
1249 logio_done:
1250 lio->done(sp);
1251 }
1252
1253 static void
1254 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1255 struct tsk_mgmt_entry *tsk)
1256 {
1257 const char func[] = "TMF-IOCB";
1258 const char *type;
1259 fc_port_t *fcport;
1260 srb_t *sp;
1261 struct srb_iocb *iocb;
1262 struct srb_ctx *ctx;
1263 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1264 int error = 1;
1265
1266 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1267 if (!sp)
1268 return;
1269
1270 ctx = sp->ctx;
1271 iocb = ctx->u.iocb_cmd;
1272 type = ctx->name;
1273 fcport = sp->fcport;
1274
1275 if (sts->entry_status) {
1276 ql_log(ql_log_warn, vha, 0x5038,
1277 "Async-%s error - entry-status(%x).\n",
1278 type, sts->entry_status);
1279 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1280 ql_log(ql_log_warn, vha, 0x5039,
1281 "Async-%s error - completion status(%x).\n",
1282 type, sts->comp_status);
1283 } else if (!(le16_to_cpu(sts->scsi_status) &
1284 SS_RESPONSE_INFO_LEN_VALID)) {
1285 ql_log(ql_log_warn, vha, 0x503a,
1286 "Async-%s error - no response info(%x).\n",
1287 type, sts->scsi_status);
1288 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1289 ql_log(ql_log_warn, vha, 0x503b,
1290 "Async-%s error - not enough response(%d).\n",
1291 type, sts->rsp_data_len);
1292 } else if (sts->data[3]) {
1293 ql_log(ql_log_warn, vha, 0x503c,
1294 "Async-%s error - response(%x).\n",
1295 type, sts->data[3]);
1296 } else {
1297 error = 0;
1298 }
1299
1300 if (error) {
1301 iocb->u.tmf.data = error;
1302 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1303 (uint8_t *)sts, sizeof(*sts));
1304 }
1305
1306 iocb->done(sp);
1307 }
1308
1309 /**
1310 * qla2x00_process_response_queue() - Process response queue entries.
1311 * @ha: SCSI driver HA context
1312 */
1313 void
1314 qla2x00_process_response_queue(struct rsp_que *rsp)
1315 {
1316 struct scsi_qla_host *vha;
1317 struct qla_hw_data *ha = rsp->hw;
1318 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1319 sts_entry_t *pkt;
1320 uint16_t handle_cnt;
1321 uint16_t cnt;
1322
1323 vha = pci_get_drvdata(ha->pdev);
1324
1325 if (!vha->flags.online)
1326 return;
1327
1328 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1329 pkt = (sts_entry_t *)rsp->ring_ptr;
1330
1331 rsp->ring_index++;
1332 if (rsp->ring_index == rsp->length) {
1333 rsp->ring_index = 0;
1334 rsp->ring_ptr = rsp->ring;
1335 } else {
1336 rsp->ring_ptr++;
1337 }
1338
1339 if (pkt->entry_status != 0) {
1340 ql_log(ql_log_warn, vha, 0x5035,
1341 "Process error entry.\n");
1342
1343 qla2x00_error_entry(vha, rsp, pkt);
1344 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1345 wmb();
1346 continue;
1347 }
1348
1349 switch (pkt->entry_type) {
1350 case STATUS_TYPE:
1351 qla2x00_status_entry(vha, rsp, pkt);
1352 break;
1353 case STATUS_TYPE_21:
1354 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1355 for (cnt = 0; cnt < handle_cnt; cnt++) {
1356 qla2x00_process_completed_request(vha, rsp->req,
1357 ((sts21_entry_t *)pkt)->handle[cnt]);
1358 }
1359 break;
1360 case STATUS_TYPE_22:
1361 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1362 for (cnt = 0; cnt < handle_cnt; cnt++) {
1363 qla2x00_process_completed_request(vha, rsp->req,
1364 ((sts22_entry_t *)pkt)->handle[cnt]);
1365 }
1366 break;
1367 case STATUS_CONT_TYPE:
1368 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1369 break;
1370 case MBX_IOCB_TYPE:
1371 qla2x00_mbx_iocb_entry(vha, rsp->req,
1372 (struct mbx_entry *)pkt);
1373 break;
1374 case CT_IOCB_TYPE:
1375 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1376 break;
1377 default:
1378 /* Type Not Supported. */
1379 ql_log(ql_log_warn, vha, 0x504a,
1380 "Received unknown response pkt type %x "
1381 "entry status=%x.\n",
1382 pkt->entry_type, pkt->entry_status);
1383 break;
1384 }
1385 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1386 wmb();
1387 }
1388
1389 /* Adjust ring index */
1390 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1391 }
1392
1393 static inline void
1394
1395 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1396 uint32_t sense_len, struct rsp_que *rsp)
1397 {
1398 struct scsi_qla_host *vha = sp->fcport->vha;
1399 struct scsi_cmnd *cp = sp->cmd;
1400
1401 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1402 sense_len = SCSI_SENSE_BUFFERSIZE;
1403
1404 sp->request_sense_length = sense_len;
1405 sp->request_sense_ptr = cp->sense_buffer;
1406 if (sp->request_sense_length > par_sense_len)
1407 sense_len = par_sense_len;
1408
1409 memcpy(cp->sense_buffer, sense_data, sense_len);
1410
1411 sp->request_sense_ptr += sense_len;
1412 sp->request_sense_length -= sense_len;
1413 if (sp->request_sense_length != 0)
1414 rsp->status_srb = sp;
1415
1416 ql_dbg(ql_dbg_io, vha, 0x301c,
1417 "Check condition Sense data, scsi(%ld:%d:%d:%d) cmd=%p.\n",
1418 sp->fcport->vha->host_no, cp->device->channel, cp->device->id,
1419 cp->device->lun, cp);
1420 if (sense_len)
1421 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1422 cp->sense_buffer, sense_len);
1423 }
1424
1425 struct scsi_dif_tuple {
1426 __be16 guard; /* Checksum */
1427 __be16 app_tag; /* APPL identifer */
1428 __be32 ref_tag; /* Target LBA or indirect LBA */
1429 };
1430
1431 /*
1432 * Checks the guard or meta-data for the type of error
1433 * detected by the HBA. In case of errors, we set the
1434 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1435 * to indicate to the kernel that the HBA detected error.
1436 */
1437 static inline int
1438 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1439 {
1440 struct scsi_qla_host *vha = sp->fcport->vha;
1441 struct scsi_cmnd *cmd = sp->cmd;
1442 uint8_t *ap = &sts24->data[12];
1443 uint8_t *ep = &sts24->data[20];
1444 uint32_t e_ref_tag, a_ref_tag;
1445 uint16_t e_app_tag, a_app_tag;
1446 uint16_t e_guard, a_guard;
1447
1448 /*
1449 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1450 * would make guard field appear at offset 2
1451 */
1452 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1453 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1454 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1455 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1456 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1457 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1458
1459 ql_dbg(ql_dbg_io, vha, 0x3023,
1460 "iocb(s) %p Returned STATUS.\n", sts24);
1461
1462 ql_dbg(ql_dbg_io, vha, 0x3024,
1463 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1464 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1465 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1466 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1467 a_app_tag, e_app_tag, a_guard, e_guard);
1468
1469 /*
1470 * Ignore sector if:
1471 * For type 3: ref & app tag is all 'f's
1472 * For type 0,1,2: app tag is all 'f's
1473 */
1474 if ((a_app_tag == 0xffff) &&
1475 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1476 (a_ref_tag == 0xffffffff))) {
1477 uint32_t blocks_done, resid;
1478 sector_t lba_s = scsi_get_lba(cmd);
1479
1480 /* 2TB boundary case covered automatically with this */
1481 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1482
1483 resid = scsi_bufflen(cmd) - (blocks_done *
1484 cmd->device->sector_size);
1485
1486 scsi_set_resid(cmd, resid);
1487 cmd->result = DID_OK << 16;
1488
1489 /* Update protection tag */
1490 if (scsi_prot_sg_count(cmd)) {
1491 uint32_t i, j = 0, k = 0, num_ent;
1492 struct scatterlist *sg;
1493 struct sd_dif_tuple *spt;
1494
1495 /* Patch the corresponding protection tags */
1496 scsi_for_each_prot_sg(cmd, sg,
1497 scsi_prot_sg_count(cmd), i) {
1498 num_ent = sg_dma_len(sg) / 8;
1499 if (k + num_ent < blocks_done) {
1500 k += num_ent;
1501 continue;
1502 }
1503 j = blocks_done - k - 1;
1504 k = blocks_done;
1505 break;
1506 }
1507
1508 if (k != blocks_done) {
1509 qla_printk(KERN_WARNING, sp->fcport->vha->hw,
1510 "unexpected tag values tag:lba=%x:%llx)\n",
1511 e_ref_tag, (unsigned long long)lba_s);
1512 return 1;
1513 }
1514
1515 spt = page_address(sg_page(sg)) + sg->offset;
1516 spt += j;
1517
1518 spt->app_tag = 0xffff;
1519 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1520 spt->ref_tag = 0xffffffff;
1521 }
1522
1523 return 0;
1524 }
1525
1526 /* check guard */
1527 if (e_guard != a_guard) {
1528 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1529 0x10, 0x1);
1530 set_driver_byte(cmd, DRIVER_SENSE);
1531 set_host_byte(cmd, DID_ABORT);
1532 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1533 return 1;
1534 }
1535
1536 /* check ref tag */
1537 if (e_ref_tag != a_ref_tag) {
1538 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1539 0x10, 0x3);
1540 set_driver_byte(cmd, DRIVER_SENSE);
1541 set_host_byte(cmd, DID_ABORT);
1542 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1543 return 1;
1544 }
1545
1546 /* check appl tag */
1547 if (e_app_tag != a_app_tag) {
1548 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1549 0x10, 0x2);
1550 set_driver_byte(cmd, DRIVER_SENSE);
1551 set_host_byte(cmd, DID_ABORT);
1552 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1553 return 1;
1554 }
1555
1556 return 1;
1557 }
1558
1559 /**
1560 * qla2x00_status_entry() - Process a Status IOCB entry.
1561 * @ha: SCSI driver HA context
1562 * @pkt: Entry pointer
1563 */
1564 static void
1565 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1566 {
1567 srb_t *sp;
1568 fc_port_t *fcport;
1569 struct scsi_cmnd *cp;
1570 sts_entry_t *sts;
1571 struct sts_entry_24xx *sts24;
1572 uint16_t comp_status;
1573 uint16_t scsi_status;
1574 uint16_t ox_id;
1575 uint8_t lscsi_status;
1576 int32_t resid;
1577 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1578 fw_resid_len;
1579 uint8_t *rsp_info, *sense_data;
1580 struct qla_hw_data *ha = vha->hw;
1581 uint32_t handle;
1582 uint16_t que;
1583 struct req_que *req;
1584 int logit = 1;
1585
1586 sts = (sts_entry_t *) pkt;
1587 sts24 = (struct sts_entry_24xx *) pkt;
1588 if (IS_FWI2_CAPABLE(ha)) {
1589 comp_status = le16_to_cpu(sts24->comp_status);
1590 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1591 } else {
1592 comp_status = le16_to_cpu(sts->comp_status);
1593 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1594 }
1595 handle = (uint32_t) LSW(sts->handle);
1596 que = MSW(sts->handle);
1597 req = ha->req_q_map[que];
1598
1599 /* Fast path completion. */
1600 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1601 qla2x00_process_completed_request(vha, req, handle);
1602
1603 return;
1604 }
1605
1606 /* Validate handle. */
1607 if (handle < MAX_OUTSTANDING_COMMANDS) {
1608 sp = req->outstanding_cmds[handle];
1609 req->outstanding_cmds[handle] = NULL;
1610 } else
1611 sp = NULL;
1612
1613 if (sp == NULL) {
1614 ql_log(ql_log_warn, vha, 0x3017,
1615 "Invalid status handle (0x%x).\n", sts->handle);
1616
1617 if (IS_QLA82XX(ha))
1618 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1619 else
1620 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1621 qla2xxx_wake_dpc(vha);
1622 return;
1623 }
1624 cp = sp->cmd;
1625 if (cp == NULL) {
1626 ql_log(ql_log_warn, vha, 0x3018,
1627 "Command already returned (0x%x/%p).\n",
1628 sts->handle, sp);
1629
1630 return;
1631 }
1632
1633 lscsi_status = scsi_status & STATUS_MASK;
1634
1635 fcport = sp->fcport;
1636
1637 ox_id = 0;
1638 sense_len = par_sense_len = rsp_info_len = resid_len =
1639 fw_resid_len = 0;
1640 if (IS_FWI2_CAPABLE(ha)) {
1641 if (scsi_status & SS_SENSE_LEN_VALID)
1642 sense_len = le32_to_cpu(sts24->sense_len);
1643 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1644 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1645 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1646 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1647 if (comp_status == CS_DATA_UNDERRUN)
1648 fw_resid_len = le32_to_cpu(sts24->residual_len);
1649 rsp_info = sts24->data;
1650 sense_data = sts24->data;
1651 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1652 ox_id = le16_to_cpu(sts24->ox_id);
1653 par_sense_len = sizeof(sts24->data);
1654 } else {
1655 if (scsi_status & SS_SENSE_LEN_VALID)
1656 sense_len = le16_to_cpu(sts->req_sense_length);
1657 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1658 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1659 resid_len = le32_to_cpu(sts->residual_length);
1660 rsp_info = sts->rsp_info;
1661 sense_data = sts->req_sense_data;
1662 par_sense_len = sizeof(sts->req_sense_data);
1663 }
1664
1665 /* Check for any FCP transport errors. */
1666 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1667 /* Sense data lies beyond any FCP RESPONSE data. */
1668 if (IS_FWI2_CAPABLE(ha)) {
1669 sense_data += rsp_info_len;
1670 par_sense_len -= rsp_info_len;
1671 }
1672 if (rsp_info_len > 3 && rsp_info[3]) {
1673 ql_log(ql_log_warn, vha, 0x3019,
1674 "FCP I/O protocol failure (0x%x/0x%x).\n",
1675 rsp_info_len, rsp_info[3]);
1676
1677 cp->result = DID_BUS_BUSY << 16;
1678 goto out;
1679 }
1680 }
1681
1682 /* Check for overrun. */
1683 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1684 scsi_status & SS_RESIDUAL_OVER)
1685 comp_status = CS_DATA_OVERRUN;
1686
1687 /*
1688 * Based on Host and scsi status generate status code for Linux
1689 */
1690 switch (comp_status) {
1691 case CS_COMPLETE:
1692 case CS_QUEUE_FULL:
1693 if (scsi_status == 0) {
1694 cp->result = DID_OK << 16;
1695 break;
1696 }
1697 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
1698 resid = resid_len;
1699 scsi_set_resid(cp, resid);
1700
1701 if (!lscsi_status &&
1702 ((unsigned)(scsi_bufflen(cp) - resid) <
1703 cp->underflow)) {
1704 ql_log(ql_log_warn, vha, 0x301a,
1705 "Mid-layer underflow "
1706 "detected (0x%x of 0x%x bytes).\n",
1707 resid, scsi_bufflen(cp));
1708
1709 cp->result = DID_ERROR << 16;
1710 break;
1711 }
1712 }
1713 cp->result = DID_OK << 16 | lscsi_status;
1714
1715 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1716 ql_log(ql_log_warn, vha, 0x301b,
1717 "QUEUE FULL detected.\n");
1718 break;
1719 }
1720 logit = 0;
1721 if (lscsi_status != SS_CHECK_CONDITION)
1722 break;
1723
1724 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1725 if (!(scsi_status & SS_SENSE_LEN_VALID))
1726 break;
1727
1728 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1729 rsp);
1730 break;
1731
1732 case CS_DATA_UNDERRUN:
1733 /* Use F/W calculated residual length. */
1734 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1735 scsi_set_resid(cp, resid);
1736 if (scsi_status & SS_RESIDUAL_UNDER) {
1737 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
1738 ql_log(ql_log_warn, vha, 0x301d,
1739 "Dropped frame(s) detected "
1740 "(0x%x of 0x%x bytes).\n",
1741 resid, scsi_bufflen(cp));
1742
1743 cp->result = DID_ERROR << 16 | lscsi_status;
1744 break;
1745 }
1746
1747 if (!lscsi_status &&
1748 ((unsigned)(scsi_bufflen(cp) - resid) <
1749 cp->underflow)) {
1750 ql_log(ql_log_warn, vha, 0x301e,
1751 "Mid-layer underflow "
1752 "detected (0x%x of 0x%x bytes).\n",
1753 resid, scsi_bufflen(cp));
1754
1755 cp->result = DID_ERROR << 16;
1756 break;
1757 }
1758 } else {
1759 ql_log(ql_log_warn, vha, 0x301f,
1760 "Dropped frame(s) detected (0x%x "
1761 "of 0x%x bytes).\n", resid, scsi_bufflen(cp));
1762
1763 cp->result = DID_ERROR << 16 | lscsi_status;
1764 goto check_scsi_status;
1765 }
1766
1767 cp->result = DID_OK << 16 | lscsi_status;
1768 logit = 0;
1769
1770 check_scsi_status:
1771 /*
1772 * Check to see if SCSI Status is non zero. If so report SCSI
1773 * Status.
1774 */
1775 if (lscsi_status != 0) {
1776 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1777 ql_log(ql_log_warn, vha, 0x3020,
1778 "QUEUE FULL detected.\n");
1779 logit = 1;
1780 break;
1781 }
1782 if (lscsi_status != SS_CHECK_CONDITION)
1783 break;
1784
1785 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1786 if (!(scsi_status & SS_SENSE_LEN_VALID))
1787 break;
1788
1789 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1790 sense_len, rsp);
1791 }
1792 break;
1793
1794 case CS_PORT_LOGGED_OUT:
1795 case CS_PORT_CONFIG_CHG:
1796 case CS_PORT_BUSY:
1797 case CS_INCOMPLETE:
1798 case CS_PORT_UNAVAILABLE:
1799 case CS_TIMEOUT:
1800 case CS_RESET:
1801
1802 /*
1803 * We are going to have the fc class block the rport
1804 * while we try to recover so instruct the mid layer
1805 * to requeue until the class decides how to handle this.
1806 */
1807 cp->result = DID_TRANSPORT_DISRUPTED << 16;
1808
1809 if (comp_status == CS_TIMEOUT) {
1810 if (IS_FWI2_CAPABLE(ha))
1811 break;
1812 else if ((le16_to_cpu(sts->status_flags) &
1813 SF_LOGOUT_SENT) == 0)
1814 break;
1815 }
1816
1817 ql_dbg(ql_dbg_io, vha, 0x3021,
1818 "Port down status: port-state=0x%x.\n",
1819 atomic_read(&fcport->state));
1820
1821 if (atomic_read(&fcport->state) == FCS_ONLINE)
1822 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1823 break;
1824
1825 case CS_ABORTED:
1826 cp->result = DID_RESET << 16;
1827 break;
1828
1829 case CS_DIF_ERROR:
1830 logit = qla2x00_handle_dif_error(sp, sts24);
1831 break;
1832 default:
1833 cp->result = DID_ERROR << 16;
1834 break;
1835 }
1836
1837 out:
1838 if (logit)
1839 ql_dbg(ql_dbg_io, vha, 0x3022,
1840 "FCP command status: 0x%x-0x%x (0x%x) "
1841 "oxid=0x%x cdb=%02x%02x%02x len=0x%x "
1842 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
1843 comp_status, scsi_status, cp->result, ox_id, cp->cmnd[0],
1844 cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len,
1845 resid_len, fw_resid_len);
1846
1847 if (rsp->status_srb == NULL)
1848 qla2x00_sp_compl(ha, sp);
1849 }
1850
1851 /**
1852 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1853 * @ha: SCSI driver HA context
1854 * @pkt: Entry pointer
1855 *
1856 * Extended sense data.
1857 */
1858 static void
1859 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1860 {
1861 uint8_t sense_sz = 0;
1862 struct qla_hw_data *ha = rsp->hw;
1863 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
1864 srb_t *sp = rsp->status_srb;
1865 struct scsi_cmnd *cp;
1866
1867 if (sp != NULL && sp->request_sense_length != 0) {
1868 cp = sp->cmd;
1869 if (cp == NULL) {
1870 ql_log(ql_log_warn, vha, 0x3025,
1871 "cmd is NULL: already returned to OS (sp=%p).\n",
1872 sp);
1873
1874 rsp->status_srb = NULL;
1875 return;
1876 }
1877
1878 if (sp->request_sense_length > sizeof(pkt->data)) {
1879 sense_sz = sizeof(pkt->data);
1880 } else {
1881 sense_sz = sp->request_sense_length;
1882 }
1883
1884 /* Move sense data. */
1885 if (IS_FWI2_CAPABLE(ha))
1886 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1887 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1888 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
1889 sp->request_sense_ptr, sense_sz);
1890
1891 sp->request_sense_ptr += sense_sz;
1892 sp->request_sense_length -= sense_sz;
1893
1894 /* Place command on done queue. */
1895 if (sp->request_sense_length == 0) {
1896 rsp->status_srb = NULL;
1897 qla2x00_sp_compl(ha, sp);
1898 }
1899 }
1900 }
1901
1902 /**
1903 * qla2x00_error_entry() - Process an error entry.
1904 * @ha: SCSI driver HA context
1905 * @pkt: Entry pointer
1906 */
1907 static void
1908 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1909 {
1910 srb_t *sp;
1911 struct qla_hw_data *ha = vha->hw;
1912 uint32_t handle = LSW(pkt->handle);
1913 uint16_t que = MSW(pkt->handle);
1914 struct req_que *req = ha->req_q_map[que];
1915
1916 if (pkt->entry_status & RF_INV_E_ORDER)
1917 ql_dbg(ql_dbg_async, vha, 0x502a,
1918 "Invalid Entry Order.\n");
1919 else if (pkt->entry_status & RF_INV_E_COUNT)
1920 ql_dbg(ql_dbg_async, vha, 0x502b,
1921 "Invalid Entry Count.\n");
1922 else if (pkt->entry_status & RF_INV_E_PARAM)
1923 ql_dbg(ql_dbg_async, vha, 0x502c,
1924 "Invalid Entry Parameter.\n");
1925 else if (pkt->entry_status & RF_INV_E_TYPE)
1926 ql_dbg(ql_dbg_async, vha, 0x502d,
1927 "Invalid Entry Type.\n");
1928 else if (pkt->entry_status & RF_BUSY)
1929 ql_dbg(ql_dbg_async, vha, 0x502e,
1930 "Busy.\n");
1931 else
1932 ql_dbg(ql_dbg_async, vha, 0x502f,
1933 "UNKNOWN flag error.\n");
1934
1935 /* Validate handle. */
1936 if (handle < MAX_OUTSTANDING_COMMANDS)
1937 sp = req->outstanding_cmds[handle];
1938 else
1939 sp = NULL;
1940
1941 if (sp) {
1942 /* Free outstanding command slot. */
1943 req->outstanding_cmds[handle] = NULL;
1944
1945 /* Bad payload or header */
1946 if (pkt->entry_status &
1947 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1948 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1949 sp->cmd->result = DID_ERROR << 16;
1950 } else if (pkt->entry_status & RF_BUSY) {
1951 sp->cmd->result = DID_BUS_BUSY << 16;
1952 } else {
1953 sp->cmd->result = DID_ERROR << 16;
1954 }
1955 qla2x00_sp_compl(ha, sp);
1956
1957 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1958 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
1959 || pkt->entry_type == COMMAND_TYPE_6) {
1960 ql_log(ql_log_warn, vha, 0x5030,
1961 "Error entry - invalid handle.\n");
1962
1963 if (IS_QLA82XX(ha))
1964 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1965 else
1966 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1967 qla2xxx_wake_dpc(vha);
1968 }
1969 }
1970
1971 /**
1972 * qla24xx_mbx_completion() - Process mailbox command completions.
1973 * @ha: SCSI driver HA context
1974 * @mb0: Mailbox0 register
1975 */
1976 static void
1977 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1978 {
1979 uint16_t cnt;
1980 uint16_t __iomem *wptr;
1981 struct qla_hw_data *ha = vha->hw;
1982 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1983
1984 /* Load return mailbox registers. */
1985 ha->flags.mbox_int = 1;
1986 ha->mailbox_out[0] = mb0;
1987 wptr = (uint16_t __iomem *)&reg->mailbox1;
1988
1989 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1990 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1991 wptr++;
1992 }
1993
1994 if (ha->mcp) {
1995 ql_dbg(ql_dbg_async, vha, 0x504d,
1996 "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
1997 } else {
1998 ql_dbg(ql_dbg_async, vha, 0x504e,
1999 "MBX pointer ERROR.\n");
2000 }
2001 }
2002
2003 /**
2004 * qla24xx_process_response_queue() - Process response queue entries.
2005 * @ha: SCSI driver HA context
2006 */
2007 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2008 struct rsp_que *rsp)
2009 {
2010 struct sts_entry_24xx *pkt;
2011 struct qla_hw_data *ha = vha->hw;
2012
2013 if (!vha->flags.online)
2014 return;
2015
2016 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2017 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2018
2019 rsp->ring_index++;
2020 if (rsp->ring_index == rsp->length) {
2021 rsp->ring_index = 0;
2022 rsp->ring_ptr = rsp->ring;
2023 } else {
2024 rsp->ring_ptr++;
2025 }
2026
2027 if (pkt->entry_status != 0) {
2028 ql_dbg(ql_dbg_async, vha, 0x5029,
2029 "Process error entry.\n");
2030
2031 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2032 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2033 wmb();
2034 continue;
2035 }
2036
2037 switch (pkt->entry_type) {
2038 case STATUS_TYPE:
2039 qla2x00_status_entry(vha, rsp, pkt);
2040 break;
2041 case STATUS_CONT_TYPE:
2042 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2043 break;
2044 case VP_RPT_ID_IOCB_TYPE:
2045 qla24xx_report_id_acquisition(vha,
2046 (struct vp_rpt_id_entry_24xx *)pkt);
2047 break;
2048 case LOGINOUT_PORT_IOCB_TYPE:
2049 qla24xx_logio_entry(vha, rsp->req,
2050 (struct logio_entry_24xx *)pkt);
2051 break;
2052 case TSK_MGMT_IOCB_TYPE:
2053 qla24xx_tm_iocb_entry(vha, rsp->req,
2054 (struct tsk_mgmt_entry *)pkt);
2055 break;
2056 case CT_IOCB_TYPE:
2057 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2058 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2059 break;
2060 case ELS_IOCB_TYPE:
2061 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2062 break;
2063 case MARKER_TYPE:
2064 /* Do nothing in this case, this check is to prevent it
2065 * from falling into default case
2066 */
2067 break;
2068 default:
2069 /* Type Not Supported. */
2070 ql_dbg(ql_dbg_async, vha, 0x5042,
2071 "Received unknown response pkt type %x "
2072 "entry status=%x.\n",
2073 pkt->entry_type, pkt->entry_status);
2074 break;
2075 }
2076 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2077 wmb();
2078 }
2079
2080 /* Adjust ring index */
2081 if (IS_QLA82XX(ha)) {
2082 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2083 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2084 } else
2085 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2086 }
2087
2088 static void
2089 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2090 {
2091 int rval;
2092 uint32_t cnt;
2093 struct qla_hw_data *ha = vha->hw;
2094 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2095
2096 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
2097 return;
2098
2099 rval = QLA_SUCCESS;
2100 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2101 RD_REG_DWORD(&reg->iobase_addr);
2102 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2103 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2104 rval == QLA_SUCCESS; cnt--) {
2105 if (cnt) {
2106 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2107 udelay(10);
2108 } else
2109 rval = QLA_FUNCTION_TIMEOUT;
2110 }
2111 if (rval == QLA_SUCCESS)
2112 goto next_test;
2113
2114 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2115 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2116 rval == QLA_SUCCESS; cnt--) {
2117 if (cnt) {
2118 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2119 udelay(10);
2120 } else
2121 rval = QLA_FUNCTION_TIMEOUT;
2122 }
2123 if (rval != QLA_SUCCESS)
2124 goto done;
2125
2126 next_test:
2127 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2128 ql_log(ql_log_info, vha, 0x504c,
2129 "Additional code -- 0x55AA.\n");
2130
2131 done:
2132 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2133 RD_REG_DWORD(&reg->iobase_window);
2134 }
2135
2136 /**
2137 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2138 * @irq:
2139 * @dev_id: SCSI driver HA context
2140 *
2141 * Called by system whenever the host adapter generates an interrupt.
2142 *
2143 * Returns handled flag.
2144 */
2145 irqreturn_t
2146 qla24xx_intr_handler(int irq, void *dev_id)
2147 {
2148 scsi_qla_host_t *vha;
2149 struct qla_hw_data *ha;
2150 struct device_reg_24xx __iomem *reg;
2151 int status;
2152 unsigned long iter;
2153 uint32_t stat;
2154 uint32_t hccr;
2155 uint16_t mb[4];
2156 struct rsp_que *rsp;
2157 unsigned long flags;
2158
2159 rsp = (struct rsp_que *) dev_id;
2160 if (!rsp) {
2161 printk(KERN_INFO
2162 "%s(): NULL response queue pointer.\n", __func__);
2163 return IRQ_NONE;
2164 }
2165
2166 ha = rsp->hw;
2167 reg = &ha->iobase->isp24;
2168 status = 0;
2169
2170 if (unlikely(pci_channel_offline(ha->pdev)))
2171 return IRQ_HANDLED;
2172
2173 spin_lock_irqsave(&ha->hardware_lock, flags);
2174 vha = pci_get_drvdata(ha->pdev);
2175 for (iter = 50; iter--; ) {
2176 stat = RD_REG_DWORD(&reg->host_status);
2177 if (stat & HSRX_RISC_PAUSED) {
2178 if (unlikely(pci_channel_offline(ha->pdev)))
2179 break;
2180
2181 hccr = RD_REG_DWORD(&reg->hccr);
2182
2183 ql_log(ql_log_warn, vha, 0x504b,
2184 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2185 hccr);
2186
2187 qla2xxx_check_risc_status(vha);
2188
2189 ha->isp_ops->fw_dump(vha, 1);
2190 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2191 break;
2192 } else if ((stat & HSRX_RISC_INT) == 0)
2193 break;
2194
2195 switch (stat & 0xff) {
2196 case 0x1:
2197 case 0x2:
2198 case 0x10:
2199 case 0x11:
2200 qla24xx_mbx_completion(vha, MSW(stat));
2201 status |= MBX_INTERRUPT;
2202
2203 break;
2204 case 0x12:
2205 mb[0] = MSW(stat);
2206 mb[1] = RD_REG_WORD(&reg->mailbox1);
2207 mb[2] = RD_REG_WORD(&reg->mailbox2);
2208 mb[3] = RD_REG_WORD(&reg->mailbox3);
2209 qla2x00_async_event(vha, rsp, mb);
2210 break;
2211 case 0x13:
2212 case 0x14:
2213 qla24xx_process_response_queue(vha, rsp);
2214 break;
2215 default:
2216 ql_dbg(ql_dbg_async, vha, 0x504f,
2217 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2218 break;
2219 }
2220 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2221 RD_REG_DWORD_RELAXED(&reg->hccr);
2222 }
2223 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2224
2225 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2226 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2227 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2228 complete(&ha->mbx_intr_comp);
2229 }
2230
2231 return IRQ_HANDLED;
2232 }
2233
2234 static irqreturn_t
2235 qla24xx_msix_rsp_q(int irq, void *dev_id)
2236 {
2237 struct qla_hw_data *ha;
2238 struct rsp_que *rsp;
2239 struct device_reg_24xx __iomem *reg;
2240 struct scsi_qla_host *vha;
2241 unsigned long flags;
2242
2243 rsp = (struct rsp_que *) dev_id;
2244 if (!rsp) {
2245 printk(KERN_INFO
2246 "%s(): NULL response queue pointer.\n", __func__);
2247 return IRQ_NONE;
2248 }
2249 ha = rsp->hw;
2250 reg = &ha->iobase->isp24;
2251
2252 spin_lock_irqsave(&ha->hardware_lock, flags);
2253
2254 vha = pci_get_drvdata(ha->pdev);
2255 qla24xx_process_response_queue(vha, rsp);
2256 if (!ha->flags.disable_msix_handshake) {
2257 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2258 RD_REG_DWORD_RELAXED(&reg->hccr);
2259 }
2260 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2261
2262 return IRQ_HANDLED;
2263 }
2264
2265 static irqreturn_t
2266 qla25xx_msix_rsp_q(int irq, void *dev_id)
2267 {
2268 struct qla_hw_data *ha;
2269 struct rsp_que *rsp;
2270 struct device_reg_24xx __iomem *reg;
2271 unsigned long flags;
2272
2273 rsp = (struct rsp_que *) dev_id;
2274 if (!rsp) {
2275 printk(KERN_INFO
2276 "%s(): NULL response queue pointer.\n", __func__);
2277 return IRQ_NONE;
2278 }
2279 ha = rsp->hw;
2280
2281 /* Clear the interrupt, if enabled, for this response queue */
2282 if (!ha->flags.disable_msix_handshake) {
2283 reg = &ha->iobase->isp24;
2284 spin_lock_irqsave(&ha->hardware_lock, flags);
2285 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2286 RD_REG_DWORD_RELAXED(&reg->hccr);
2287 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2288 }
2289 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2290
2291 return IRQ_HANDLED;
2292 }
2293
2294 static irqreturn_t
2295 qla24xx_msix_default(int irq, void *dev_id)
2296 {
2297 scsi_qla_host_t *vha;
2298 struct qla_hw_data *ha;
2299 struct rsp_que *rsp;
2300 struct device_reg_24xx __iomem *reg;
2301 int status;
2302 uint32_t stat;
2303 uint32_t hccr;
2304 uint16_t mb[4];
2305 unsigned long flags;
2306
2307 rsp = (struct rsp_que *) dev_id;
2308 if (!rsp) {
2309 printk(KERN_INFO
2310 "%s(): NULL response queue pointer.\n", __func__);
2311 return IRQ_NONE;
2312 }
2313 ha = rsp->hw;
2314 reg = &ha->iobase->isp24;
2315 status = 0;
2316
2317 spin_lock_irqsave(&ha->hardware_lock, flags);
2318 vha = pci_get_drvdata(ha->pdev);
2319 do {
2320 stat = RD_REG_DWORD(&reg->host_status);
2321 if (stat & HSRX_RISC_PAUSED) {
2322 if (unlikely(pci_channel_offline(ha->pdev)))
2323 break;
2324
2325 hccr = RD_REG_DWORD(&reg->hccr);
2326
2327 ql_log(ql_log_info, vha, 0x5050,
2328 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2329 hccr);
2330
2331 qla2xxx_check_risc_status(vha);
2332
2333 ha->isp_ops->fw_dump(vha, 1);
2334 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2335 break;
2336 } else if ((stat & HSRX_RISC_INT) == 0)
2337 break;
2338
2339 switch (stat & 0xff) {
2340 case 0x1:
2341 case 0x2:
2342 case 0x10:
2343 case 0x11:
2344 qla24xx_mbx_completion(vha, MSW(stat));
2345 status |= MBX_INTERRUPT;
2346
2347 break;
2348 case 0x12:
2349 mb[0] = MSW(stat);
2350 mb[1] = RD_REG_WORD(&reg->mailbox1);
2351 mb[2] = RD_REG_WORD(&reg->mailbox2);
2352 mb[3] = RD_REG_WORD(&reg->mailbox3);
2353 qla2x00_async_event(vha, rsp, mb);
2354 break;
2355 case 0x13:
2356 case 0x14:
2357 qla24xx_process_response_queue(vha, rsp);
2358 break;
2359 default:
2360 ql_dbg(ql_dbg_async, vha, 0x5051,
2361 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2362 break;
2363 }
2364 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2365 } while (0);
2366 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2367
2368 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2369 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2370 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2371 complete(&ha->mbx_intr_comp);
2372 }
2373 return IRQ_HANDLED;
2374 }
2375
2376 /* Interrupt handling helpers. */
2377
2378 struct qla_init_msix_entry {
2379 const char *name;
2380 irq_handler_t handler;
2381 };
2382
2383 static struct qla_init_msix_entry msix_entries[3] = {
2384 { "qla2xxx (default)", qla24xx_msix_default },
2385 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2386 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2387 };
2388
2389 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2390 { "qla2xxx (default)", qla82xx_msix_default },
2391 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2392 };
2393
2394 static void
2395 qla24xx_disable_msix(struct qla_hw_data *ha)
2396 {
2397 int i;
2398 struct qla_msix_entry *qentry;
2399 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2400
2401 for (i = 0; i < ha->msix_count; i++) {
2402 qentry = &ha->msix_entries[i];
2403 if (qentry->have_irq)
2404 free_irq(qentry->vector, qentry->rsp);
2405 }
2406 pci_disable_msix(ha->pdev);
2407 kfree(ha->msix_entries);
2408 ha->msix_entries = NULL;
2409 ha->flags.msix_enabled = 0;
2410 ql_dbg(ql_dbg_init, vha, 0x0042,
2411 "Disabled the MSI.\n");
2412 }
2413
2414 static int
2415 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2416 {
2417 #define MIN_MSIX_COUNT 2
2418 int i, ret;
2419 struct msix_entry *entries;
2420 struct qla_msix_entry *qentry;
2421 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2422
2423 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2424 GFP_KERNEL);
2425 if (!entries) {
2426 ql_log(ql_log_warn, vha, 0x00bc,
2427 "Failed to allocate memory for msix_entry.\n");
2428 return -ENOMEM;
2429 }
2430
2431 for (i = 0; i < ha->msix_count; i++)
2432 entries[i].entry = i;
2433
2434 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2435 if (ret) {
2436 if (ret < MIN_MSIX_COUNT)
2437 goto msix_failed;
2438
2439 ql_log(ql_log_warn, vha, 0x00c6,
2440 "MSI-X: Failed to enable support "
2441 "-- %d/%d\n Retry with %d vectors.\n",
2442 ha->msix_count, ret, ret);
2443 ha->msix_count = ret;
2444 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2445 if (ret) {
2446 msix_failed:
2447 ql_log(ql_log_fatal, vha, 0x00c7,
2448 "MSI-X: Failed to enable support, "
2449 "giving up -- %d/%d.\n",
2450 ha->msix_count, ret);
2451 goto msix_out;
2452 }
2453 ha->max_rsp_queues = ha->msix_count - 1;
2454 }
2455 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2456 ha->msix_count, GFP_KERNEL);
2457 if (!ha->msix_entries) {
2458 ql_log(ql_log_fatal, vha, 0x00c8,
2459 "Failed to allocate memory for ha->msix_entries.\n");
2460 ret = -ENOMEM;
2461 goto msix_out;
2462 }
2463 ha->flags.msix_enabled = 1;
2464
2465 for (i = 0; i < ha->msix_count; i++) {
2466 qentry = &ha->msix_entries[i];
2467 qentry->vector = entries[i].vector;
2468 qentry->entry = entries[i].entry;
2469 qentry->have_irq = 0;
2470 qentry->rsp = NULL;
2471 }
2472
2473 /* Enable MSI-X vectors for the base queue */
2474 for (i = 0; i < 2; i++) {
2475 qentry = &ha->msix_entries[i];
2476 if (IS_QLA82XX(ha)) {
2477 ret = request_irq(qentry->vector,
2478 qla82xx_msix_entries[i].handler,
2479 0, qla82xx_msix_entries[i].name, rsp);
2480 } else {
2481 ret = request_irq(qentry->vector,
2482 msix_entries[i].handler,
2483 0, msix_entries[i].name, rsp);
2484 }
2485 if (ret) {
2486 ql_log(ql_log_fatal, vha, 0x00cb,
2487 "MSI-X: unable to register handler -- %x/%d.\n",
2488 qentry->vector, ret);
2489 qla24xx_disable_msix(ha);
2490 ha->mqenable = 0;
2491 goto msix_out;
2492 }
2493 qentry->have_irq = 1;
2494 qentry->rsp = rsp;
2495 rsp->msix = qentry;
2496 }
2497
2498 /* Enable MSI-X vector for response queue update for queue 0 */
2499 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2500 ha->mqenable = 1;
2501 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2502 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2503 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2504 ql_dbg(ql_dbg_init, vha, 0x0055,
2505 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2506 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2507
2508 msix_out:
2509 kfree(entries);
2510 return ret;
2511 }
2512
2513 int
2514 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2515 {
2516 int ret;
2517 device_reg_t __iomem *reg = ha->iobase;
2518 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2519
2520 /* If possible, enable MSI-X. */
2521 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
2522 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
2523 goto skip_msi;
2524
2525 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2526 (ha->pdev->subsystem_device == 0x7040 ||
2527 ha->pdev->subsystem_device == 0x7041 ||
2528 ha->pdev->subsystem_device == 0x1705)) {
2529 ql_log(ql_log_warn, vha, 0x0034,
2530 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
2531 ha->pdev->subsystem_vendor,
2532 ha->pdev->subsystem_device);
2533 goto skip_msi;
2534 }
2535
2536 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
2537 ql_log(ql_log_warn, vha, 0x0035,
2538 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
2539 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
2540 goto skip_msix;
2541 }
2542
2543 ret = qla24xx_enable_msix(ha, rsp);
2544 if (!ret) {
2545 ql_dbg(ql_dbg_init, vha, 0x0036,
2546 "MSI-X: Enabled (0x%X, 0x%X).\n",
2547 ha->chip_revision, ha->fw_attributes);
2548 goto clear_risc_ints;
2549 }
2550 ql_log(ql_log_info, vha, 0x0037,
2551 "MSI-X Falling back-to MSI mode -%d.\n", ret);
2552 skip_msix:
2553
2554 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2555 !IS_QLA8001(ha))
2556 goto skip_msi;
2557
2558 ret = pci_enable_msi(ha->pdev);
2559 if (!ret) {
2560 ql_dbg(ql_dbg_init, vha, 0x0038,
2561 "MSI: Enabled.\n");
2562 ha->flags.msi_enabled = 1;
2563 } else
2564 ql_log(ql_log_warn, vha, 0x0039,
2565 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
2566 skip_msi:
2567
2568 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2569 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2570 QLA2XXX_DRIVER_NAME, rsp);
2571 if (ret) {
2572 ql_log(ql_log_warn, vha, 0x003a,
2573 "Failed to reserve interrupt %d already in use.\n",
2574 ha->pdev->irq);
2575 goto fail;
2576 }
2577
2578 clear_risc_ints:
2579
2580 /*
2581 * FIXME: Noted that 8014s were being dropped during NK testing.
2582 * Timing deltas during MSI-X/INTa transitions?
2583 */
2584 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
2585 goto fail;
2586 spin_lock_irq(&ha->hardware_lock);
2587 if (IS_FWI2_CAPABLE(ha)) {
2588 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2589 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2590 } else {
2591 WRT_REG_WORD(&reg->isp.semaphore, 0);
2592 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2593 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
2594 }
2595 spin_unlock_irq(&ha->hardware_lock);
2596
2597 fail:
2598 return ret;
2599 }
2600
2601 void
2602 qla2x00_free_irqs(scsi_qla_host_t *vha)
2603 {
2604 struct qla_hw_data *ha = vha->hw;
2605 struct rsp_que *rsp = ha->rsp_q_map[0];
2606
2607 if (ha->flags.msix_enabled)
2608 qla24xx_disable_msix(ha);
2609 else if (ha->flags.msi_enabled) {
2610 free_irq(ha->pdev->irq, rsp);
2611 pci_disable_msi(ha->pdev);
2612 } else
2613 free_irq(ha->pdev->irq, rsp);
2614 }
2615
2616
2617 int qla25xx_request_irq(struct rsp_que *rsp)
2618 {
2619 struct qla_hw_data *ha = rsp->hw;
2620 struct qla_init_msix_entry *intr = &msix_entries[2];
2621 struct qla_msix_entry *msix = rsp->msix;
2622 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2623 int ret;
2624
2625 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2626 if (ret) {
2627 ql_log(ql_log_fatal, vha, 0x00e6,
2628 "MSI-X: Unable to register handler -- %x/%d.\n",
2629 msix->vector, ret);
2630 return ret;
2631 }
2632 msix->have_irq = 1;
2633 msix->rsp = rsp;
2634 return ret;
2635 }