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[SCSI] qla2xxx: Print mailbox command opcode and return code when a command times...
[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_isr.c
CommitLineData
1da177e4 1/*
fa90c54f 2 * QLogic Fibre Channel HBA Driver
07e264b7 3 * Copyright (c) 2003-2011 QLogic Corporation
1da177e4 4 *
fa90c54f 5 * See LICENSE.qla2xxx for copyright and licensing details.
1da177e4
LT		 6 */
7#include "qla_def.h"
8
05236a05 9#include <linux/delay.h>
5a0e3ad6 10#include <linux/slab.h>
df7baa50 11#include <scsi/scsi_tcq.h>
9a069e19 12#include <scsi/scsi_bsg_fc.h>
bad75002 13#include <scsi/scsi_eh.h>
df7baa50 14
1da177e4 15static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
73208dfd
AC		 16static void qla2x00_process_completed_request(struct scsi_qla_host *,
17 struct req_que *, uint32_t);
18static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
2afa19a9 19static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
73208dfd
AC		 20static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
21 sts_entry_t *);
9a853f71 22
1da177e4
LT		 23/**
24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
25 * @irq:
26 * @dev_id: SCSI driver HA context
1da177e4
LT		 27 *
28 * Called by system whenever the host adapter generates an interrupt.
29 *
30 * Returns handled flag.
31 */
32irqreturn_t
7d12e780 33qla2100_intr_handler(int irq, void *dev_id)
1da177e4 34{
e315cd28
AC		 35 scsi_qla_host_t *vha;
36 struct qla_hw_data *ha;
3d71644c 37 struct device_reg_2xxx __iomem *reg;
1da177e4 38 int status;
1da177e4 39 unsigned long iter;
14e660e6 40 uint16_t hccr;
9a853f71 41 uint16_t mb[4];
e315cd28 42 struct rsp_que *rsp;
43fac4d9 43 unsigned long flags;
1da177e4 44
e315cd28
AC		 45 rsp = (struct rsp_que *) dev_id;
46 if (!rsp) {
1da177e4 47 printk(KERN_INFO
7c3df132 48 "%s(): NULL response queue pointer.\n", __func__);
1da177e4
LT		 49 return (IRQ_NONE);
50 }
51
e315cd28 52 ha = rsp->hw;
3d71644c 53 reg = &ha->iobase->isp;
1da177e4
LT		 54 status = 0;
55
43fac4d9 56 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 57 vha = pci_get_drvdata(ha->pdev);
1da177e4 58 for (iter = 50; iter--; ) {
14e660e6
SJ		 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
a06a0f8e 66 * bit to be cleared. Schedule a big hammer to get
14e660e6
SJ		 67 * out of the RISC PAUSED state.
68 */
69 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
70 RD_REG_WORD(&reg->hccr);
71
e315cd28
AC		 72 ha->isp_ops->fw_dump(vha, 1);
73 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
14e660e6
SJ		 74 break;
75 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
1da177e4
LT		 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. */
9a853f71
AV		 83 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
84 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
e315cd28 85 qla2x00_mbx_completion(vha, mb[0]);
1da177e4 86 status |= MBX_INTERRUPT;
9a853f71
AV		 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);
73208dfd 91 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 92 } else {
93 /*EMPTY*/
7c3df132
SK		 94 ql_dbg(ql_dbg_async, vha, 0x5025,
95 "Unrecognized interrupt type (%d).\n",
96 mb[0]);
1da177e4
LT		 97 }
98 /* Release mailbox registers. */
99 WRT_REG_WORD(&reg->semaphore, 0);
100 RD_REG_WORD(&reg->semaphore);
101 } else {
73208dfd 102 qla2x00_process_response_queue(rsp);
1da177e4
LT		 103
104 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
105 RD_REG_WORD(&reg->hccr);
106 }
107 }
43fac4d9 108 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 109
1da177e4
LT		 110 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
111 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1da177e4 112 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 113 complete(&ha->mbx_intr_comp);
1da177e4
LT		 114 }
115
1da177e4
LT		 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
1da177e4
LT		 123 *
124 * Called by system whenever the host adapter generates an interrupt.
125 *
126 * Returns handled flag.
127 */
128irqreturn_t
7d12e780 129qla2300_intr_handler(int irq, void *dev_id)
1da177e4 130{
e315cd28 131 scsi_qla_host_t *vha;
3d71644c 132 struct device_reg_2xxx __iomem *reg;
1da177e4 133 int status;
1da177e4
LT		 134 unsigned long iter;
135 uint32_t stat;
1da177e4 136 uint16_t hccr;
9a853f71 137 uint16_t mb[4];
e315cd28
AC		 138 struct rsp_que *rsp;
139 struct qla_hw_data *ha;
43fac4d9 140 unsigned long flags;
1da177e4 141
e315cd28
AC		 142 rsp = (struct rsp_que *) dev_id;
143 if (!rsp) {
1da177e4 144 printk(KERN_INFO
7c3df132 145 "%s(): NULL response queue pointer.\n", __func__);
1da177e4
LT		 146 return (IRQ_NONE);
147 }
148
e315cd28 149 ha = rsp->hw;
3d71644c 150 reg = &ha->iobase->isp;
1da177e4
LT		 151 status = 0;
152
43fac4d9 153 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 154 vha = pci_get_drvdata(ha->pdev);
1da177e4
LT		 155 for (iter = 50; iter--; ) {
156 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
157 if (stat & HSR_RISC_PAUSED) {
85880801 158 if (unlikely(pci_channel_offline(ha->pdev)))
14e660e6
SJ		 159 break;
160
1da177e4
LT		 161 hccr = RD_REG_WORD(&reg->hccr);
162 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
7c3df132
SK		 163 ql_log(ql_log_warn, vha, 0x5026,
164 "Parity error -- HCCR=%x, Dumping "
165 "firmware.\n", hccr);
1da177e4 166 else
7c3df132
SK		 167 ql_log(ql_log_warn, vha, 0x5027,
168 "RISC paused -- HCCR=%x, Dumping "
169 "firmware.\n", hccr);
1da177e4
LT		 170
171 /*
172 * Issue a "HARD" reset in order for the RISC
173 * interrupt bit to be cleared. Schedule a big
a06a0f8e 174 * hammer to get out of the RISC PAUSED state.
1da177e4
LT		 175 */
176 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
177 RD_REG_WORD(&reg->hccr);
07f31805 178
e315cd28
AC		 179 ha->isp_ops->fw_dump(vha, 1);
180 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 181 break;
182 } else if ((stat & HSR_RISC_INT) == 0)
183 break;
184
1da177e4 185 switch (stat & 0xff) {
1da177e4
LT		 186 case 0x1:
187 case 0x2:
188 case 0x10:
189 case 0x11:
e315cd28 190 qla2x00_mbx_completion(vha, MSW(stat));
1da177e4
LT		 191 status |= MBX_INTERRUPT;
192
193 /* Release mailbox registers. */
194 WRT_REG_WORD(&reg->semaphore, 0);
195 break;
196 case 0x12:
9a853f71
AV		 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);
73208dfd 201 qla2x00_async_event(vha, rsp, mb);
9a853f71
AV		 202 break;
203 case 0x13:
73208dfd 204 qla2x00_process_response_queue(rsp);
1da177e4
LT		 205 break;
206 case 0x15:
9a853f71
AV		 207 mb[0] = MBA_CMPLT_1_16BIT;
208 mb[1] = MSW(stat);
73208dfd 209 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 210 break;
211 case 0x16:
9a853f71
AV		 212 mb[0] = MBA_SCSI_COMPLETION;
213 mb[1] = MSW(stat);
214 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
73208dfd 215 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 216 break;
217 default:
7c3df132
SK		 218 ql_dbg(ql_dbg_async, vha, 0x5028,
219 "Unrecognized interrupt type (%d).\n", stat & 0xff);
1da177e4
LT		 220 break;
221 }
222 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
223 RD_REG_WORD_RELAXED(&reg->hccr);
224 }
43fac4d9 225 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1da177e4 226
1da177e4
LT		 227 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
228 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1da177e4 229 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 230 complete(&ha->mbx_intr_comp);
1da177e4
LT		 231 }
232
1da177e4
LT		 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 */
241static void
e315cd28 242qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1da177e4
LT		 243{
244 uint16_t cnt;
4fa94f83 245 uint32_t mboxes;
1da177e4 246 uint16_t __iomem *wptr;
e315cd28 247 struct qla_hw_data *ha = vha->hw;
3d71644c 248 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4 249
4fa94f83
AV		 250 /* Read all mbox registers? */
251 mboxes = (1 << ha->mbx_count) - 1;
252 if (!ha->mcp)
253 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERRROR.\n");
254 else
255 mboxes = ha->mcp->in_mb;
256
1da177e4
LT		 257 /* Load return mailbox registers. */
258 ha->flags.mbox_int = 1;
259 ha->mailbox_out[0] = mb0;
4fa94f83 260 mboxes >>= 1;
1da177e4
LT		 261 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
262
263 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
fa2a1ce5 264 if (IS_QLA2200(ha) && cnt == 8)
1da177e4 265 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
4fa94f83 266 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
1da177e4 267 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
4fa94f83 268 else if (mboxes & BIT_0)
1da177e4 269 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
fa2a1ce5 270
1da177e4 271 wptr++;
4fa94f83 272 mboxes >>= 1;
1da177e4 273 }
1da177e4
LT		 274}
275
8a659571
AV		 276static void
277qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
278{
279 static char *event[] =
280 { "Complete", "Request Notification", "Time Extension" };
281 int rval;
282 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
283 uint16_t __iomem *wptr;
284 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
285
286 /* Seed data -- mailbox1 -> mailbox7. */
287 wptr = (uint16_t __iomem *)&reg24->mailbox1;
288 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
289 mb[cnt] = RD_REG_WORD(wptr);
290
7c3df132 291 ql_dbg(ql_dbg_async, vha, 0x5021,
6246b8a1 292 "Inter-Driver Communication %s -- "
7c3df132
SK		 293 "%04x %04x %04x %04x %04x %04x %04x.\n",
294 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
295 mb[4], mb[5], mb[6]);
8a659571
AV		 296
297 /* Acknowledgement needed? [Notify && non-zero timeout]. */
298 timeout = (descr >> 8) & 0xf;
299 if (aen != MBA_IDC_NOTIFY || !timeout)
300 return;
301
7c3df132 302 ql_dbg(ql_dbg_async, vha, 0x5022,
d8424f68 303 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
7c3df132 304 vha->host_no, event[aen & 0xff], timeout);
8a659571
AV		 305
306 rval = qla2x00_post_idc_ack_work(vha, mb);
307 if (rval != QLA_SUCCESS)
7c3df132 308 ql_log(ql_log_warn, vha, 0x5023,
8a659571
AV		 309 "IDC failed to post ACK.\n");
310}
311
1da177e4
LT		 312/**
313 * qla2x00_async_event() - Process aynchronous events.
314 * @ha: SCSI driver HA context
9a853f71 315 * @mb: Mailbox registers (0 - 3)
1da177e4 316 */
2c3dfe3f 317void
73208dfd 318qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1da177e4 319{
9a853f71 320#define LS_UNKNOWN 2
6246b8a1 321 static char *link_speeds[] = { "1", "2", "?", "4", "8", "16", "10" };
1da177e4 322 char *link_speed;
1da177e4 323 uint16_t handle_cnt;
bdab23da 324 uint16_t cnt, mbx;
1da177e4 325 uint32_t handles[5];
e315cd28 326 struct qla_hw_data *ha = vha->hw;
3d71644c 327 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
bdab23da 328 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
bc5c2aad 329 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1da177e4 330 uint32_t rscn_entry, host_pid;
4d4df193 331 unsigned long flags;
1da177e4
LT		 332
333 /* Setup to process RIO completion. */
334 handle_cnt = 0;
6246b8a1 335 if (IS_CNA_CAPABLE(ha))
3a03eb79 336 goto skip_rio;
1da177e4
LT		 337 switch (mb[0]) {
338 case MBA_SCSI_COMPLETION:
9a853f71 339 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 340 handle_cnt = 1;
341 break;
342 case MBA_CMPLT_1_16BIT:
9a853f71 343 handles[0] = mb[1];
1da177e4
LT		 344 handle_cnt = 1;
345 mb[0] = MBA_SCSI_COMPLETION;
346 break;
347 case MBA_CMPLT_2_16BIT:
9a853f71
AV		 348 handles[0] = mb[1];
349 handles[1] = mb[2];
1da177e4
LT		 350 handle_cnt = 2;
351 mb[0] = MBA_SCSI_COMPLETION;
352 break;
353 case MBA_CMPLT_3_16BIT:
9a853f71
AV		 354 handles[0] = mb[1];
355 handles[1] = mb[2];
356 handles[2] = mb[3];
1da177e4
LT		 357 handle_cnt = 3;
358 mb[0] = MBA_SCSI_COMPLETION;
359 break;
360 case MBA_CMPLT_4_16BIT:
9a853f71
AV		 361 handles[0] = mb[1];
362 handles[1] = mb[2];
363 handles[2] = mb[3];
1da177e4
LT		 364 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
365 handle_cnt = 4;
366 mb[0] = MBA_SCSI_COMPLETION;
367 break;
368 case MBA_CMPLT_5_16BIT:
9a853f71
AV		 369 handles[0] = mb[1];
370 handles[1] = mb[2];
371 handles[2] = mb[3];
1da177e4
LT		 372 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
373 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
374 handle_cnt = 5;
375 mb[0] = MBA_SCSI_COMPLETION;
376 break;
377 case MBA_CMPLT_2_32BIT:
9a853f71 378 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 379 handles[1] = le32_to_cpu(
380 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
381 RD_MAILBOX_REG(ha, reg, 6));
382 handle_cnt = 2;
383 mb[0] = MBA_SCSI_COMPLETION;
384 break;
385 default:
386 break;
387 }
3a03eb79 388skip_rio:
1da177e4
LT		 389 switch (mb[0]) {
390 case MBA_SCSI_COMPLETION: /* Fast Post */
e315cd28 391 if (!vha->flags.online)
1da177e4
LT		 392 break;
393
394 for (cnt = 0; cnt < handle_cnt; cnt++)
73208dfd
AC		 395 qla2x00_process_completed_request(vha, rsp->req,
396 handles[cnt]);
1da177e4
LT		 397 break;
398
399 case MBA_RESET: /* Reset */
7c3df132
SK		 400 ql_dbg(ql_dbg_async, vha, 0x5002,
401 "Asynchronous RESET.\n");
1da177e4 402
e315cd28 403 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 404 break;
405
406 case MBA_SYSTEM_ERR: /* System Error */
6246b8a1
GM		 407 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha)) ?
408 RD_REG_WORD(&reg24->mailbox7) : 0;
7c3df132 409 ql_log(ql_log_warn, vha, 0x5003,
bdab23da
AV		 410 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
411 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
1da177e4 412
e315cd28 413 ha->isp_ops->fw_dump(vha, 1);
1da177e4 414
e428924c 415 if (IS_FWI2_CAPABLE(ha)) {
9a853f71 416 if (mb[1] == 0 && mb[2] == 0) {
7c3df132 417 ql_log(ql_log_fatal, vha, 0x5004,
9a853f71
AV		 418 "Unrecoverable Hardware Error: adapter "
419 "marked OFFLINE!\n");
e315cd28 420 vha->flags.online = 0;
6246b8a1 421 vha->device_flags |= DFLG_DEV_FAILED;
b1d46989 422 } else {
25985edc 423 /* Check to see if MPI timeout occurred */
b1d46989
MI		 424 if ((mbx & MBX_3) && (ha->flags.port0))
425 set_bit(MPI_RESET_NEEDED,
426 &vha->dpc_flags);
427
e315cd28 428 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
b1d46989 429 }
9a853f71 430 } else if (mb[1] == 0) {
7c3df132 431 ql_log(ql_log_fatal, vha, 0x5005,
1da177e4
LT		 432 "Unrecoverable Hardware Error: adapter marked "
433 "OFFLINE!\n");
e315cd28 434 vha->flags.online = 0;
6246b8a1 435 vha->device_flags |= DFLG_DEV_FAILED;
1da177e4 436 } else
e315cd28 437 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 438 break;
439
440 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
7c3df132
SK		 441 ql_log(ql_log_warn, vha, 0x5006,
442 "ISP Request Transfer Error (%x).\n", mb[1]);
1da177e4 443
e315cd28 444 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 445 break;
446
447 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
7c3df132
SK		 448 ql_log(ql_log_warn, vha, 0x5007,
449 "ISP Response Transfer Error.\n");
1da177e4 450
e315cd28 451 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 452 break;
453
454 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
7c3df132
SK		 455 ql_dbg(ql_dbg_async, vha, 0x5008,
456 "Asynchronous WAKEUP_THRES.\n");
1da177e4
LT		 457 break;
458
459 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
cfb0919c 460 ql_dbg(ql_dbg_async, vha, 0x5009,
7c3df132 461 "LIP occurred (%x).\n", mb[1]);
1da177e4 462
e315cd28
AC		 463 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
464 atomic_set(&vha->loop_state, LOOP_DOWN);
465 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
466 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 467 }
468
e315cd28
AC		 469 if (vha->vp_idx) {
470 atomic_set(&vha->vp_state, VP_FAILED);
471 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 472 }
473
e315cd28
AC		 474 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
475 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1da177e4 476
e315cd28
AC		 477 vha->flags.management_server_logged_in = 0;
478 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1da177e4
LT		 479 break;
480
481 case MBA_LOOP_UP: /* Loop Up Event */
1da177e4
LT		 482 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
483 link_speed = link_speeds[0];
d8b45213 484 ha->link_data_rate = PORT_SPEED_1GB;
1da177e4 485 } else {
9a853f71 486 link_speed = link_speeds[LS_UNKNOWN];
6246b8a1 487 if (mb[1] < 6)
1da177e4 488 link_speed = link_speeds[mb[1]];
3a03eb79 489 else if (mb[1] == 0x13)
6246b8a1 490 link_speed = link_speeds[6];
1da177e4
LT		 491 ha->link_data_rate = mb[1];
492 }
493
cfb0919c 494 ql_dbg(ql_dbg_async, vha, 0x500a,
7c3df132 495 "LOOP UP detected (%s Gbps).\n", link_speed);
1da177e4 496
e315cd28
AC		 497 vha->flags.management_server_logged_in = 0;
498 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1da177e4
LT		 499 break;
500
501 case MBA_LOOP_DOWN: /* Loop Down Event */
6246b8a1
GM		 502 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
503 ? RD_REG_WORD(&reg24->mailbox4) : 0;
bc5c2aad 504 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
cfb0919c 505 ql_dbg(ql_dbg_async, vha, 0x500b,
7c3df132
SK		 506 "LOOP DOWN detected (%x %x %x %x).\n",
507 mb[1], mb[2], mb[3], mbx);
1da177e4 508
e315cd28
AC		 509 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
510 atomic_set(&vha->loop_state, LOOP_DOWN);
511 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
512 vha->device_flags |= DFLG_NO_CABLE;
513 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 514 }
515
e315cd28
AC		 516 if (vha->vp_idx) {
517 atomic_set(&vha->vp_state, VP_FAILED);
518 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 519 }
520
e315cd28 521 vha->flags.management_server_logged_in = 0;
d8b45213 522 ha->link_data_rate = PORT_SPEED_UNKNOWN;
e315cd28 523 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1da177e4
LT		 524 break;
525
526 case MBA_LIP_RESET: /* LIP reset occurred */
cfb0919c 527 ql_dbg(ql_dbg_async, vha, 0x500c,
cc3ef7bc 528 "LIP reset occurred (%x).\n", mb[1]);
1da177e4 529
e315cd28
AC		 530 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
531 atomic_set(&vha->loop_state, LOOP_DOWN);
532 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
533 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 534 }
535
e315cd28
AC		 536 if (vha->vp_idx) {
537 atomic_set(&vha->vp_state, VP_FAILED);
538 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 539 }
540
e315cd28 541 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 542
543 ha->operating_mode = LOOP;
e315cd28
AC		 544 vha->flags.management_server_logged_in = 0;
545 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1da177e4
LT		 546 break;
547
3a03eb79 548 /* case MBA_DCBX_COMPLETE: */
1da177e4
LT		 549 case MBA_POINT_TO_POINT: /* Point-to-Point */
550 if (IS_QLA2100(ha))
551 break;
552
6246b8a1 553 if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA8031(ha)) {
7c3df132
SK		 554 ql_dbg(ql_dbg_async, vha, 0x500d,
555 "DCBX Completed -- %04x %04x %04x.\n",
556 mb[1], mb[2], mb[3]);
23f2ebd1
SR		 557 if (ha->notify_dcbx_comp)
558 complete(&ha->dcbx_comp);
559
560 } else
7c3df132
SK		 561 ql_dbg(ql_dbg_async, vha, 0x500e,
562 "Asynchronous P2P MODE received.\n");
1da177e4
LT		 563
564 /*
565 * Until there's a transition from loop down to loop up, treat
566 * this as loop down only.
567 */
e315cd28
AC		 568 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
569 atomic_set(&vha->loop_state, LOOP_DOWN);
570 if (!atomic_read(&vha->loop_down_timer))
571 atomic_set(&vha->loop_down_timer,
1da177e4 572 LOOP_DOWN_TIME);
e315cd28 573 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 574 }
575
e315cd28
AC		 576 if (vha->vp_idx) {
577 atomic_set(&vha->vp_state, VP_FAILED);
578 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 579 }
580
e315cd28
AC		 581 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
582 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
583
584 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
585 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
4346b149
AV		 586
587 ha->flags.gpsc_supported = 1;
e315cd28 588 vha->flags.management_server_logged_in = 0;
1da177e4
LT		 589 break;
590
591 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
592 if (IS_QLA2100(ha))
593 break;
594
cfb0919c 595 ql_dbg(ql_dbg_async, vha, 0x500f,
1da177e4
LT		 596 "Configuration change detected: value=%x.\n", mb[1]);
597
e315cd28
AC		 598 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
599 atomic_set(&vha->loop_state, LOOP_DOWN);
600 if (!atomic_read(&vha->loop_down_timer))
601 atomic_set(&vha->loop_down_timer,
1da177e4 602 LOOP_DOWN_TIME);
e315cd28 603 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 604 }
605
e315cd28
AC		 606 if (vha->vp_idx) {
607 atomic_set(&vha->vp_state, VP_FAILED);
608 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 609 }
610
e315cd28
AC		 611 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
612 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 613 break;
614
615 case MBA_PORT_UPDATE: /* Port database update */
55903b9d
SV		 616 /*
617 * Handle only global and vn-port update events
618 *
619 * Relevant inputs:
620 * mb[1] = N_Port handle of changed port
621 * OR 0xffff for global event
622 * mb[2] = New login state
623 * 7 = Port logged out
624 * mb[3] = LSB is vp_idx, 0xff = all vps
625 *
626 * Skip processing if:
627 * Event is global, vp_idx is NOT all vps,
628 * vp_idx does not match
629 * Event is not global, vp_idx does not match
630 */
12cec63e
AV		 631 if (IS_QLA2XXX_MIDTYPE(ha) &&
632 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
633 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
634 break;
73208dfd 635
9764ff88
AV		 636 /* Global event -- port logout or port unavailable. */
637 if (mb[1] == 0xffff && mb[2] == 0x7) {
7c3df132
SK		 638 ql_dbg(ql_dbg_async, vha, 0x5010,
639 "Port unavailable %04x %04x %04x.\n",
640 mb[1], mb[2], mb[3]);
9764ff88
AV		 641
642 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
643 atomic_set(&vha->loop_state, LOOP_DOWN);
644 atomic_set(&vha->loop_down_timer,
645 LOOP_DOWN_TIME);
646 vha->device_flags |= DFLG_NO_CABLE;
647 qla2x00_mark_all_devices_lost(vha, 1);
648 }
649
650 if (vha->vp_idx) {
651 atomic_set(&vha->vp_state, VP_FAILED);
652 fc_vport_set_state(vha->fc_vport,
653 FC_VPORT_FAILED);
faadc5e7 654 qla2x00_mark_all_devices_lost(vha, 1);
9764ff88
AV		 655 }
656
657 vha->flags.management_server_logged_in = 0;
658 ha->link_data_rate = PORT_SPEED_UNKNOWN;
659 break;
660 }
661
1da177e4 662 /*
cc3ef7bc 663 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1da177e4
LT		 664 * event etc. earlier indicating loop is down) then process
665 * it. Otherwise ignore it and Wait for RSCN to come in.
666 */
e315cd28
AC		 667 atomic_set(&vha->loop_down_timer, 0);
668 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
669 atomic_read(&vha->loop_state) != LOOP_DEAD) {
7c3df132
SK		 670 ql_dbg(ql_dbg_async, vha, 0x5011,
671 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
672 mb[1], mb[2], mb[3]);
1da177e4
LT		 673 break;
674 }
675
7c3df132
SK		 676 ql_dbg(ql_dbg_async, vha, 0x5012,
677 "Port database changed %04x %04x %04x.\n",
678 mb[1], mb[2], mb[3]);
1da177e4
LT		 679
680 /*
681 * Mark all devices as missing so we will login again.
682 */
e315cd28 683 atomic_set(&vha->loop_state, LOOP_UP);
1da177e4 684
e315cd28 685 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4 686
e315cd28
AC		 687 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
688 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 689 break;
690
691 case MBA_RSCN_UPDATE: /* State Change Registration */
3c397400 692 /* Check if the Vport has issued a SCR */
e315cd28 693 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
3c397400
SJ		 694 break;
695 /* Only handle SCNs for our Vport index. */
0d6e61bc 696 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
3c397400 697 break;
0d6e61bc 698
7c3df132
SK		 699 ql_dbg(ql_dbg_async, vha, 0x5013,
700 "RSCN database changed -- %04x %04x %04x.\n",
701 mb[1], mb[2], mb[3]);
1da177e4 702
59d72d87 703 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
e315cd28
AC		 704 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
705 | vha->d_id.b.al_pa;
1da177e4 706 if (rscn_entry == host_pid) {
7c3df132
SK		 707 ql_dbg(ql_dbg_async, vha, 0x5014,
708 "Ignoring RSCN update to local host "
709 "port ID (%06x).\n", host_pid);
1da177e4
LT		 710 break;
711 }
712
59d72d87
RA		 713 /* Ignore reserved bits from RSCN-payload. */
714 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1da177e4 715
e315cd28
AC		 716 atomic_set(&vha->loop_down_timer, 0);
717 vha->flags.management_server_logged_in = 0;
1da177e4 718
e315cd28
AC		 719 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
720 set_bit(RSCN_UPDATE, &vha->dpc_flags);
721 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1da177e4
LT		 722 break;
723
724 /* case MBA_RIO_RESPONSE: */
725 case MBA_ZIO_RESPONSE:
7c3df132
SK		 726 ql_dbg(ql_dbg_async, vha, 0x5015,
727 "[R|Z]IO update completion.\n");
1da177e4 728
e428924c 729 if (IS_FWI2_CAPABLE(ha))
2afa19a9 730 qla24xx_process_response_queue(vha, rsp);
4fdfefe5 731 else
73208dfd 732 qla2x00_process_response_queue(rsp);
1da177e4 733 break;
9a853f71
AV		 734
735 case MBA_DISCARD_RND_FRAME:
7c3df132
SK		 736 ql_dbg(ql_dbg_async, vha, 0x5016,
737 "Discard RND Frame -- %04x %04x %04x.\n",
738 mb[1], mb[2], mb[3]);
9a853f71 739 break;
45ebeb56
AV		 740
741 case MBA_TRACE_NOTIFICATION:
7c3df132
SK		 742 ql_dbg(ql_dbg_async, vha, 0x5017,
743 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
45ebeb56 744 break;
4d4df193
HK		 745
746 case MBA_ISP84XX_ALERT:
7c3df132
SK		 747 ql_dbg(ql_dbg_async, vha, 0x5018,
748 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
749 mb[1], mb[2], mb[3]);
4d4df193
HK		 750
751 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
752 switch (mb[1]) {
753 case A84_PANIC_RECOVERY:
7c3df132
SK		 754 ql_log(ql_log_info, vha, 0x5019,
755 "Alert 84XX: panic recovery %04x %04x.\n",
756 mb[2], mb[3]);
4d4df193
HK		 757 break;
758 case A84_OP_LOGIN_COMPLETE:
759 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
7c3df132
SK		 760 ql_log(ql_log_info, vha, 0x501a,
761 "Alert 84XX: firmware version %x.\n",
762 ha->cs84xx->op_fw_version);
4d4df193
HK		 763 break;
764 case A84_DIAG_LOGIN_COMPLETE:
765 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
7c3df132
SK		 766 ql_log(ql_log_info, vha, 0x501b,
767 "Alert 84XX: diagnostic firmware version %x.\n",
768 ha->cs84xx->diag_fw_version);
4d4df193
HK		 769 break;
770 case A84_GOLD_LOGIN_COMPLETE:
771 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
772 ha->cs84xx->fw_update = 1;
7c3df132
SK		 773 ql_log(ql_log_info, vha, 0x501c,
774 "Alert 84XX: gold firmware version %x.\n",
775 ha->cs84xx->gold_fw_version);
4d4df193
HK		 776 break;
777 default:
7c3df132
SK		 778 ql_log(ql_log_warn, vha, 0x501d,
779 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
4d4df193
HK		 780 mb[1], mb[2], mb[3]);
781 }
782 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
783 break;
3a03eb79 784 case MBA_DCBX_START:
7c3df132
SK		 785 ql_dbg(ql_dbg_async, vha, 0x501e,
786 "DCBX Started -- %04x %04x %04x.\n",
787 mb[1], mb[2], mb[3]);
3a03eb79
AV		 788 break;
789 case MBA_DCBX_PARAM_UPDATE:
7c3df132
SK		 790 ql_dbg(ql_dbg_async, vha, 0x501f,
791 "DCBX Parameters Updated -- %04x %04x %04x.\n",
792 mb[1], mb[2], mb[3]);
3a03eb79
AV		 793 break;
794 case MBA_FCF_CONF_ERR:
7c3df132
SK		 795 ql_dbg(ql_dbg_async, vha, 0x5020,
796 "FCF Configuration Error -- %04x %04x %04x.\n",
797 mb[1], mb[2], mb[3]);
3a03eb79
AV		 798 break;
799 case MBA_IDC_COMPLETE:
3a03eb79 800 case MBA_IDC_NOTIFY:
3a03eb79 801 case MBA_IDC_TIME_EXT:
8a659571 802 qla81xx_idc_event(vha, mb[0], mb[1]);
3a03eb79 803 break;
6246b8a1
GM		 804 default:
805 ql_dbg(ql_dbg_async, vha, 0x5057,
806 "Unknown AEN:%04x %04x %04x %04x\n",
807 mb[0], mb[1], mb[2], mb[3]);
1da177e4 808 }
2c3dfe3f 809
e315cd28 810 if (!vha->vp_idx && ha->num_vhosts)
73208dfd 811 qla2x00_alert_all_vps(rsp, mb);
1da177e4
LT		 812}
813
814/**
815 * qla2x00_process_completed_request() - Process a Fast Post response.
816 * @ha: SCSI driver HA context
817 * @index: SRB index
818 */
819static void
73208dfd
AC		 820qla2x00_process_completed_request(struct scsi_qla_host *vha,
821 struct req_que *req, uint32_t index)
1da177e4
LT		 822{
823 srb_t *sp;
e315cd28 824 struct qla_hw_data *ha = vha->hw;
1da177e4
LT		 825
826 /* Validate handle. */
827 if (index >= MAX_OUTSTANDING_COMMANDS) {
7c3df132
SK		 828 ql_log(ql_log_warn, vha, 0x3014,
829 "Invalid SCSI command index (%x).\n", index);
1da177e4 830
8f7daead
GM		 831 if (IS_QLA82XX(ha))
832 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
833 else
834 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 835 return;
836 }
837
e315cd28 838 sp = req->outstanding_cmds[index];
1da177e4
LT		 839 if (sp) {
840 /* Free outstanding command slot. */
e315cd28 841 req->outstanding_cmds[index] = NULL;
1da177e4 842
1da177e4 843 /* Save ISP completion status */
9ba56b95 844 sp->done(ha, sp, DID_OK << 16);
1da177e4 845 } else {
7c3df132 846 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1da177e4 847
8f7daead
GM		 848 if (IS_QLA82XX(ha))
849 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
850 else
851 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 852 }
853}
854
ac280b67
AV		 855static srb_t *
856qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
857 struct req_que *req, void *iocb)
858{
859 struct qla_hw_data *ha = vha->hw;
860 sts_entry_t *pkt = iocb;
861 srb_t *sp = NULL;
862 uint16_t index;
863
864 index = LSW(pkt->handle);
865 if (index >= MAX_OUTSTANDING_COMMANDS) {
7c3df132
SK		 866 ql_log(ql_log_warn, vha, 0x5031,
867 "Invalid command index (%x).\n", index);
8f7daead
GM		 868 if (IS_QLA82XX(ha))
869 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
870 else
871 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
ac280b67
AV		 872 goto done;
873 }
874 sp = req->outstanding_cmds[index];
875 if (!sp) {
7c3df132
SK		 876 ql_log(ql_log_warn, vha, 0x5032,
877 "Invalid completion handle (%x) -- timed-out.\n", index);
ac280b67
AV		 878 return sp;
879 }
880 if (sp->handle != index) {
7c3df132
SK		 881 ql_log(ql_log_warn, vha, 0x5033,
882 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
ac280b67
AV		 883 return NULL;
884 }
9a069e19 885
ac280b67 886 req->outstanding_cmds[index] = NULL;
9a069e19 887
ac280b67
AV		 888done:
889 return sp;
890}
891
892static void
893qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
894 struct mbx_entry *mbx)
895{
896 const char func[] = "MBX-IOCB";
897 const char *type;
ac280b67
AV		 898 fc_port_t *fcport;
899 srb_t *sp;
4916392b 900 struct srb_iocb *lio;
99b0bec7 901 uint16_t *data;
5ff1d584 902 uint16_t status;
ac280b67
AV		 903
904 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
905 if (!sp)
906 return;
907
9ba56b95
GM		 908 lio = &sp->u.iocb_cmd;
909 type = sp->name;
ac280b67 910 fcport = sp->fcport;
4916392b 911 data = lio->u.logio.data;
ac280b67 912
5ff1d584 913 data[0] = MBS_COMMAND_ERROR;
4916392b 914 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
5ff1d584 915 QLA_LOGIO_LOGIN_RETRIED : 0;
ac280b67 916 if (mbx->entry_status) {
7c3df132 917 ql_dbg(ql_dbg_async, vha, 0x5043,
cfb0919c 918 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
d3fa9e7d 919 "entry-status=%x status=%x state-flag=%x "
cfb0919c
CD		 920 "status-flags=%x.\n", type, sp->handle,
921 fcport->d_id.b.domain, fcport->d_id.b.area,
d3fa9e7d
AV		 922 fcport->d_id.b.al_pa, mbx->entry_status,
923 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
7c3df132 924 le16_to_cpu(mbx->status_flags));
d3fa9e7d 925
cfb0919c 926 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
7c3df132 927 (uint8_t *)mbx, sizeof(*mbx));
ac280b67 928
99b0bec7 929 goto logio_done;
ac280b67
AV		 930 }
931
5ff1d584 932 status = le16_to_cpu(mbx->status);
9ba56b95 933 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
5ff1d584
AV		 934 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
935 status = 0;
936 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
7c3df132 937 ql_dbg(ql_dbg_async, vha, 0x5045,
cfb0919c
CD		 938 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
939 type, sp->handle, fcport->d_id.b.domain,
940 fcport->d_id.b.area, fcport->d_id.b.al_pa,
941 le16_to_cpu(mbx->mb1));
ac280b67
AV		 942
943 data[0] = MBS_COMMAND_COMPLETE;
9ba56b95 944 if (sp->type == SRB_LOGIN_CMD) {
99b0bec7
AV		 945 fcport->port_type = FCT_TARGET;
946 if (le16_to_cpu(mbx->mb1) & BIT_0)
947 fcport->port_type = FCT_INITIATOR;
6ac52608 948 else if (le16_to_cpu(mbx->mb1) & BIT_1)
99b0bec7 949 fcport->flags |= FCF_FCP2_DEVICE;
5ff1d584 950 }
99b0bec7 951 goto logio_done;
ac280b67
AV		 952 }
953
954 data[0] = le16_to_cpu(mbx->mb0);
955 switch (data[0]) {
956 case MBS_PORT_ID_USED:
957 data[1] = le16_to_cpu(mbx->mb1);
958 break;
959 case MBS_LOOP_ID_USED:
960 break;
961 default:
962 data[0] = MBS_COMMAND_ERROR;
ac280b67
AV		 963 break;
964 }
965
7c3df132 966 ql_log(ql_log_warn, vha, 0x5046,
cfb0919c
CD		 967 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
968 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
969 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
970 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
ac280b67 971 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
7c3df132 972 le16_to_cpu(mbx->mb7));
ac280b67 973
99b0bec7 974logio_done:
9ba56b95 975 sp->done(vha, sp, 0);
ac280b67
AV		 976}
977
9bc4f4fb
HZ		 978static void
979qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
980 sts_entry_t *pkt, int iocb_type)
981{
982 const char func[] = "CT_IOCB";
983 const char *type;
9bc4f4fb 984 srb_t *sp;
9bc4f4fb
HZ		 985 struct fc_bsg_job *bsg_job;
986 uint16_t comp_status;
9ba56b95 987 int res;
9bc4f4fb
HZ		 988
989 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
990 if (!sp)
991 return;
992
9ba56b95 993 bsg_job = sp->u.bsg_job;
9bc4f4fb 994
9ba56b95 995 type = "ct pass-through";
9bc4f4fb
HZ		 996
997 comp_status = le16_to_cpu(pkt->comp_status);
998
999 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1000 * fc payload to the caller
1001 */
1002 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1003 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1004
1005 if (comp_status != CS_COMPLETE) {
1006 if (comp_status == CS_DATA_UNDERRUN) {
9ba56b95 1007 res = DID_OK << 16;
9bc4f4fb
HZ		 1008 bsg_job->reply->reply_payload_rcv_len =
1009 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1010
7c3df132
SK		 1011 ql_log(ql_log_warn, vha, 0x5048,
1012 "CT pass-through-%s error "
9bc4f4fb 1013 "comp_status-status=0x%x total_byte = 0x%x.\n",
7c3df132
SK		 1014 type, comp_status,
1015 bsg_job->reply->reply_payload_rcv_len);
9bc4f4fb 1016 } else {
7c3df132
SK		 1017 ql_log(ql_log_warn, vha, 0x5049,
1018 "CT pass-through-%s error "
1019 "comp_status-status=0x%x.\n", type, comp_status);
9ba56b95 1020 res = DID_ERROR << 16;
9bc4f4fb
HZ		 1021 bsg_job->reply->reply_payload_rcv_len = 0;
1022 }
cfb0919c 1023 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
7c3df132 1024 (uint8_t *)pkt, sizeof(*pkt));
9bc4f4fb 1025 } else {
9ba56b95 1026 res = DID_OK << 16;
9bc4f4fb
HZ		 1027 bsg_job->reply->reply_payload_rcv_len =
1028 bsg_job->reply_payload.payload_len;
1029 bsg_job->reply_len = 0;
1030 }
1031
9ba56b95 1032 sp->done(vha, sp, res);
9bc4f4fb
HZ		 1033}
1034
9a069e19
GM		 1035static void
1036qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1037 struct sts_entry_24xx *pkt, int iocb_type)
1038{
1039 const char func[] = "ELS_CT_IOCB";
1040 const char *type;
9a069e19 1041 srb_t *sp;
9a069e19
GM		 1042 struct fc_bsg_job *bsg_job;
1043 uint16_t comp_status;
1044 uint32_t fw_status[3];
1045 uint8_t* fw_sts_ptr;
9ba56b95 1046 int res;
9a069e19
GM		 1047
1048 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1049 if (!sp)
1050 return;
9ba56b95 1051 bsg_job = sp->u.bsg_job;
9a069e19
GM		 1052
1053 type = NULL;
9ba56b95 1054 switch (sp->type) {
9a069e19
GM		 1055 case SRB_ELS_CMD_RPT:
1056 case SRB_ELS_CMD_HST:
1057 type = "els";
1058 break;
1059 case SRB_CT_CMD:
1060 type = "ct pass-through";
1061 break;
1062 default:
37fed3ee 1063 ql_dbg(ql_dbg_user, vha, 0x503e,
9ba56b95 1064 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
9a069e19
GM		 1065 return;
1066 }
1067
1068 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1069 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1070 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1071
1072 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1073 * fc payload to the caller
1074 */
1075 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1076 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1077
1078 if (comp_status != CS_COMPLETE) {
1079 if (comp_status == CS_DATA_UNDERRUN) {
9ba56b95 1080 res = DID_OK << 16;
9a069e19 1081 bsg_job->reply->reply_payload_rcv_len =
9ba56b95 1082 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
9a069e19 1083
37fed3ee 1084 ql_dbg(ql_dbg_user, vha, 0x503f,
cfb0919c 1085 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
9a069e19 1086 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
cfb0919c 1087 type, sp->handle, comp_status, fw_status[1], fw_status[2],
7c3df132
SK		 1088 le16_to_cpu(((struct els_sts_entry_24xx *)
1089 pkt)->total_byte_count));
9a069e19
GM		 1090 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1091 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1092 }
1093 else {
37fed3ee 1094 ql_dbg(ql_dbg_user, vha, 0x5040,
cfb0919c 1095 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
9a069e19 1096 "error subcode 1=0x%x error subcode 2=0x%x.\n",
cfb0919c 1097 type, sp->handle, comp_status,
7c3df132
SK		 1098 le16_to_cpu(((struct els_sts_entry_24xx *)
1099 pkt)->error_subcode_1),
1100 le16_to_cpu(((struct els_sts_entry_24xx *)
1101 pkt)->error_subcode_2));
9ba56b95 1102 res = DID_ERROR << 16;
9a069e19
GM		 1103 bsg_job->reply->reply_payload_rcv_len = 0;
1104 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1105 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1106 }
37fed3ee 1107 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
7c3df132 1108 (uint8_t *)pkt, sizeof(*pkt));
9a069e19
GM		 1109 }
1110 else {
9ba56b95 1111 res = DID_OK << 16;
9a069e19
GM		 1112 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1113 bsg_job->reply_len = 0;
1114 }
1115
9ba56b95 1116 sp->done(vha, sp, res);
9a069e19
GM		 1117}
1118
ac280b67
AV		 1119static void
1120qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1121 struct logio_entry_24xx *logio)
1122{
1123 const char func[] = "LOGIO-IOCB";
1124 const char *type;
ac280b67
AV		 1125 fc_port_t *fcport;
1126 srb_t *sp;
4916392b 1127 struct srb_iocb *lio;
99b0bec7 1128 uint16_t *data;
ac280b67
AV		 1129 uint32_t iop[2];
1130
1131 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1132 if (!sp)
1133 return;
1134
9ba56b95
GM		 1135 lio = &sp->u.iocb_cmd;
1136 type = sp->name;
ac280b67 1137 fcport = sp->fcport;
4916392b 1138 data = lio->u.logio.data;
ac280b67 1139
5ff1d584 1140 data[0] = MBS_COMMAND_ERROR;
4916392b 1141 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
5ff1d584 1142 QLA_LOGIO_LOGIN_RETRIED : 0;
ac280b67 1143 if (logio->entry_status) {
7c3df132 1144 ql_log(ql_log_warn, vha, 0x5034,
cfb0919c 1145 "Async-%s error entry - hdl=%x"
d3fa9e7d 1146 "portid=%02x%02x%02x entry-status=%x.\n",
cfb0919c
CD		 1147 type, sp->handle, fcport->d_id.b.domain,
1148 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1149 logio->entry_status);
1150 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
7c3df132 1151 (uint8_t *)logio, sizeof(*logio));
ac280b67 1152
99b0bec7 1153 goto logio_done;
ac280b67
AV		 1154 }
1155
1156 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
7c3df132 1157 ql_dbg(ql_dbg_async, vha, 0x5036,
cfb0919c
CD		 1158 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1159 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1160 fcport->d_id.b.area, fcport->d_id.b.al_pa,
7c3df132 1161 le32_to_cpu(logio->io_parameter[0]));
ac280b67
AV		 1162
1163 data[0] = MBS_COMMAND_COMPLETE;
9ba56b95 1164 if (sp->type != SRB_LOGIN_CMD)
99b0bec7 1165 goto logio_done;
ac280b67
AV		 1166
1167 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1168 if (iop[0] & BIT_4) {
1169 fcport->port_type = FCT_TARGET;
1170 if (iop[0] & BIT_8)
8474f3a0 1171 fcport->flags |= FCF_FCP2_DEVICE;
b0cd579c 1172 } else if (iop[0] & BIT_5)
ac280b67 1173 fcport->port_type = FCT_INITIATOR;
b0cd579c 1174
ac280b67
AV		 1175 if (logio->io_parameter[7] || logio->io_parameter[8])
1176 fcport->supported_classes |= FC_COS_CLASS2;
1177 if (logio->io_parameter[9] || logio->io_parameter[10])
1178 fcport->supported_classes |= FC_COS_CLASS3;
1179
99b0bec7 1180 goto logio_done;
ac280b67
AV		 1181 }
1182
1183 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1184 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1185 switch (iop[0]) {
1186 case LSC_SCODE_PORTID_USED:
1187 data[0] = MBS_PORT_ID_USED;
1188 data[1] = LSW(iop[1]);
1189 break;
1190 case LSC_SCODE_NPORT_USED:
1191 data[0] = MBS_LOOP_ID_USED;
1192 break;
ac280b67
AV		 1193 default:
1194 data[0] = MBS_COMMAND_ERROR;
ac280b67
AV		 1195 break;
1196 }
1197
7c3df132 1198 ql_dbg(ql_dbg_async, vha, 0x5037,
cfb0919c
CD		 1199 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1200 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
d3fa9e7d 1201 fcport->d_id.b.area, fcport->d_id.b.al_pa,
ac280b67
AV		 1202 le16_to_cpu(logio->comp_status),
1203 le32_to_cpu(logio->io_parameter[0]),
7c3df132 1204 le32_to_cpu(logio->io_parameter[1]));
ac280b67 1205
99b0bec7 1206logio_done:
9ba56b95 1207 sp->done(vha, sp, 0);
ac280b67
AV		 1208}
1209
3822263e
MI		 1210static void
1211qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1212 struct tsk_mgmt_entry *tsk)
1213{
1214 const char func[] = "TMF-IOCB";
1215 const char *type;
1216 fc_port_t *fcport;
1217 srb_t *sp;
1218 struct srb_iocb *iocb;
3822263e
MI		 1219 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1220 int error = 1;
1221
1222 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1223 if (!sp)
1224 return;
1225
9ba56b95
GM		 1226 iocb = &sp->u.iocb_cmd;
1227 type = sp->name;
3822263e
MI		 1228 fcport = sp->fcport;
1229
1230 if (sts->entry_status) {
7c3df132 1231 ql_log(ql_log_warn, vha, 0x5038,
cfb0919c
CD		 1232 "Async-%s error - hdl=%x entry-status(%x).\n",
1233 type, sp->handle, sts->entry_status);
3822263e 1234 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
7c3df132 1235 ql_log(ql_log_warn, vha, 0x5039,
cfb0919c
CD		 1236 "Async-%s error - hdl=%x completion status(%x).\n",
1237 type, sp->handle, sts->comp_status);
3822263e
MI		 1238 } else if (!(le16_to_cpu(sts->scsi_status) &
1239 SS_RESPONSE_INFO_LEN_VALID)) {
7c3df132 1240 ql_log(ql_log_warn, vha, 0x503a,
cfb0919c
CD		 1241 "Async-%s error - hdl=%x no response info(%x).\n",
1242 type, sp->handle, sts->scsi_status);
3822263e 1243 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
7c3df132 1244 ql_log(ql_log_warn, vha, 0x503b,
cfb0919c
CD		 1245 "Async-%s error - hdl=%x not enough response(%d).\n",
1246 type, sp->handle, sts->rsp_data_len);
3822263e 1247 } else if (sts->data[3]) {
7c3df132 1248 ql_log(ql_log_warn, vha, 0x503c,
cfb0919c
CD		 1249 "Async-%s error - hdl=%x response(%x).\n",
1250 type, sp->handle, sts->data[3]);
3822263e
MI		 1251 } else {
1252 error = 0;
1253 }
1254
1255 if (error) {
1256 iocb->u.tmf.data = error;
7c3df132
SK		 1257 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1258 (uint8_t *)sts, sizeof(*sts));
3822263e
MI		 1259 }
1260
9ba56b95 1261 sp->done(vha, sp, 0);
3822263e
MI		 1262}
1263
1da177e4
LT		 1264/**
1265 * qla2x00_process_response_queue() - Process response queue entries.
1266 * @ha: SCSI driver HA context
1267 */
1268void
73208dfd 1269qla2x00_process_response_queue(struct rsp_que *rsp)
1da177e4 1270{
73208dfd
AC		 1271 struct scsi_qla_host *vha;
1272 struct qla_hw_data *ha = rsp->hw;
3d71644c 1273 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 1274 sts_entry_t *pkt;
1275 uint16_t handle_cnt;
1276 uint16_t cnt;
73208dfd 1277
2afa19a9 1278 vha = pci_get_drvdata(ha->pdev);
1da177e4 1279
e315cd28 1280 if (!vha->flags.online)
1da177e4
LT		 1281 return;
1282
e315cd28
AC		 1283 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1284 pkt = (sts_entry_t *)rsp->ring_ptr;
1da177e4 1285
e315cd28
AC		 1286 rsp->ring_index++;
1287 if (rsp->ring_index == rsp->length) {
1288 rsp->ring_index = 0;
1289 rsp->ring_ptr = rsp->ring;
1da177e4 1290 } else {
e315cd28 1291 rsp->ring_ptr++;
1da177e4
LT		 1292 }
1293
1294 if (pkt->entry_status != 0) {
73208dfd 1295 qla2x00_error_entry(vha, rsp, pkt);
1da177e4
LT		 1296 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1297 wmb();
1298 continue;
1299 }
1300
1301 switch (pkt->entry_type) {
1302 case STATUS_TYPE:
73208dfd 1303 qla2x00_status_entry(vha, rsp, pkt);
1da177e4
LT		 1304 break;
1305 case STATUS_TYPE_21:
1306 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1307 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 1308 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 1309 ((sts21_entry_t *)pkt)->handle[cnt]);
1310 }
1311 break;
1312 case STATUS_TYPE_22:
1313 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1314 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 1315 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 1316 ((sts22_entry_t *)pkt)->handle[cnt]);
1317 }
1318 break;
1319 case STATUS_CONT_TYPE:
2afa19a9 1320 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1da177e4 1321 break;
ac280b67
AV		 1322 case MBX_IOCB_TYPE:
1323 qla2x00_mbx_iocb_entry(vha, rsp->req,
1324 (struct mbx_entry *)pkt);
3822263e 1325 break;
9bc4f4fb
HZ		 1326 case CT_IOCB_TYPE:
1327 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1328 break;
1da177e4
LT		 1329 default:
1330 /* Type Not Supported. */
7c3df132
SK		 1331 ql_log(ql_log_warn, vha, 0x504a,
1332 "Received unknown response pkt type %x "
1da177e4 1333 "entry status=%x.\n",
7c3df132 1334 pkt->entry_type, pkt->entry_status);
1da177e4
LT		 1335 break;
1336 }
1337 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1338 wmb();
1339 }
1340
1341 /* Adjust ring index */
e315cd28 1342 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1da177e4
LT		 1343}
1344
4733fcb1 1345static inline void
5544213b 1346qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
9ba56b95 1347 uint32_t sense_len, struct rsp_que *rsp, int res)
4733fcb1 1348{
7c3df132 1349 struct scsi_qla_host *vha = sp->fcport->vha;
9ba56b95
GM		 1350 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1351 uint32_t track_sense_len;
4733fcb1
AV		 1352
1353 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1354 sense_len = SCSI_SENSE_BUFFERSIZE;
1355
9ba56b95
GM		 1356 SET_CMD_SENSE_LEN(sp, sense_len);
1357 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1358 track_sense_len = sense_len;
1359
1360 if (sense_len > par_sense_len)
5544213b 1361 sense_len = par_sense_len;
4733fcb1
AV		 1362
1363 memcpy(cp->sense_buffer, sense_data, sense_len);
1364
9ba56b95
GM		 1365 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1366 track_sense_len -= sense_len;
1367 SET_CMD_SENSE_LEN(sp, track_sense_len);
1368
1369 if (track_sense_len != 0) {
2afa19a9 1370 rsp->status_srb = sp;
9ba56b95
GM		 1371 cp->result = res;
1372 }
4733fcb1 1373
cfb0919c
CD		 1374 if (sense_len) {
1375 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1376 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1377 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1378 cp);
7c3df132
SK		 1379 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1380 cp->sense_buffer, sense_len);
cfb0919c 1381 }
4733fcb1
AV		 1382}
1383
bad75002
AE		 1384struct scsi_dif_tuple {
1385 __be16 guard; /* Checksum */
1386 __be16 app_tag; /* APPL identifer */
1387 __be32 ref_tag; /* Target LBA or indirect LBA */
1388};
1389
1390/*
1391 * Checks the guard or meta-data for the type of error
1392 * detected by the HBA. In case of errors, we set the
1393 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1394 * to indicate to the kernel that the HBA detected error.
1395 */
8cb2049c 1396static inline int
bad75002
AE		 1397qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1398{
7c3df132 1399 struct scsi_qla_host *vha = sp->fcport->vha;
9ba56b95 1400 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
8cb2049c
AE		 1401 uint8_t *ap = &sts24->data[12];
1402 uint8_t *ep = &sts24->data[20];
bad75002
AE		 1403 uint32_t e_ref_tag, a_ref_tag;
1404 uint16_t e_app_tag, a_app_tag;
1405 uint16_t e_guard, a_guard;
1406
8cb2049c
AE		 1407 /*
1408 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1409 * would make guard field appear at offset 2
1410 */
1411 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1412 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1413 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1414 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1415 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1416 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
bad75002 1417
7c3df132
SK		 1418 ql_dbg(ql_dbg_io, vha, 0x3023,
1419 "iocb(s) %p Returned STATUS.\n", sts24);
bad75002 1420
7c3df132
SK		 1421 ql_dbg(ql_dbg_io, vha, 0x3024,
1422 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
bad75002 1423 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
7c3df132 1424 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
bad75002 1425 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
7c3df132 1426 a_app_tag, e_app_tag, a_guard, e_guard);
bad75002 1427
8cb2049c
AE		 1428 /*
1429 * Ignore sector if:
1430 * For type 3: ref & app tag is all 'f's
1431 * For type 0,1,2: app tag is all 'f's
1432 */
1433 if ((a_app_tag == 0xffff) &&
1434 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1435 (a_ref_tag == 0xffffffff))) {
1436 uint32_t blocks_done, resid;
1437 sector_t lba_s = scsi_get_lba(cmd);
1438
1439 /* 2TB boundary case covered automatically with this */
1440 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1441
1442 resid = scsi_bufflen(cmd) - (blocks_done *
1443 cmd->device->sector_size);
1444
1445 scsi_set_resid(cmd, resid);
1446 cmd->result = DID_OK << 16;
1447
1448 /* Update protection tag */
1449 if (scsi_prot_sg_count(cmd)) {
1450 uint32_t i, j = 0, k = 0, num_ent;
1451 struct scatterlist *sg;
1452 struct sd_dif_tuple *spt;
1453
1454 /* Patch the corresponding protection tags */
1455 scsi_for_each_prot_sg(cmd, sg,
1456 scsi_prot_sg_count(cmd), i) {
1457 num_ent = sg_dma_len(sg) / 8;
1458 if (k + num_ent < blocks_done) {
1459 k += num_ent;
1460 continue;
1461 }
1462 j = blocks_done - k - 1;
1463 k = blocks_done;
1464 break;
1465 }
1466
1467 if (k != blocks_done) {
cfb0919c 1468 ql_log(ql_log_warn, vha, 0x302f,
8ec9c7fb
RD		 1469 "unexpected tag values tag:lba=%x:%llx)\n",
1470 e_ref_tag, (unsigned long long)lba_s);
8cb2049c
AE		 1471 return 1;
1472 }
1473
1474 spt = page_address(sg_page(sg)) + sg->offset;
1475 spt += j;
1476
1477 spt->app_tag = 0xffff;
1478 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1479 spt->ref_tag = 0xffffffff;
1480 }
1481
1482 return 0;
1483 }
1484
bad75002
AE		 1485 /* check guard */
1486 if (e_guard != a_guard) {
1487 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1488 0x10, 0x1);
1489 set_driver_byte(cmd, DRIVER_SENSE);
1490 set_host_byte(cmd, DID_ABORT);
1491 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1492 return 1;
bad75002
AE		 1493 }
1494
e02587d7
AE		 1495 /* check ref tag */
1496 if (e_ref_tag != a_ref_tag) {
bad75002 1497 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
e02587d7 1498 0x10, 0x3);
bad75002
AE		 1499 set_driver_byte(cmd, DRIVER_SENSE);
1500 set_host_byte(cmd, DID_ABORT);
1501 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1502 return 1;
bad75002
AE		 1503 }
1504
e02587d7
AE		 1505 /* check appl tag */
1506 if (e_app_tag != a_app_tag) {
bad75002 1507 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
e02587d7 1508 0x10, 0x2);
bad75002
AE		 1509 set_driver_byte(cmd, DRIVER_SENSE);
1510 set_host_byte(cmd, DID_ABORT);
1511 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1512 return 1;
bad75002 1513 }
e02587d7 1514
8cb2049c 1515 return 1;
bad75002
AE		 1516}
1517
1da177e4
LT		 1518/**
1519 * qla2x00_status_entry() - Process a Status IOCB entry.
1520 * @ha: SCSI driver HA context
1521 * @pkt: Entry pointer
1522 */
1523static void
73208dfd 1524qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1da177e4 1525{
1da177e4 1526 srb_t *sp;
1da177e4
LT		 1527 fc_port_t *fcport;
1528 struct scsi_cmnd *cp;
9a853f71
AV		 1529 sts_entry_t *sts;
1530 struct sts_entry_24xx *sts24;
1da177e4
LT		 1531 uint16_t comp_status;
1532 uint16_t scsi_status;
b7d2280c 1533 uint16_t ox_id;
1da177e4
LT		 1534 uint8_t lscsi_status;
1535 int32_t resid;
5544213b
AV		 1536 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1537 fw_resid_len;
9a853f71 1538 uint8_t *rsp_info, *sense_data;
e315cd28 1539 struct qla_hw_data *ha = vha->hw;
2afa19a9
AC		 1540 uint32_t handle;
1541 uint16_t que;
1542 struct req_que *req;
b7d2280c 1543 int logit = 1;
9ba56b95 1544 int res = 0;
9a853f71
AV		 1545
1546 sts = (sts_entry_t *) pkt;
1547 sts24 = (struct sts_entry_24xx *) pkt;
e428924c 1548 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 1549 comp_status = le16_to_cpu(sts24->comp_status);
1550 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1551 } else {
1552 comp_status = le16_to_cpu(sts->comp_status);
1553 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1554 }
2afa19a9
AC		 1555 handle = (uint32_t) LSW(sts->handle);
1556 que = MSW(sts->handle);
1557 req = ha->req_q_map[que];
a9083016 1558
1da177e4 1559 /* Fast path completion. */
9a853f71 1560 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2afa19a9 1561 qla2x00_process_completed_request(vha, req, handle);
1da177e4
LT		 1562
1563 return;
1564 }
1565
1566 /* Validate handle. */
2afa19a9
AC		 1567 if (handle < MAX_OUTSTANDING_COMMANDS) {
1568 sp = req->outstanding_cmds[handle];
1569 req->outstanding_cmds[handle] = NULL;
1da177e4
LT		 1570 } else
1571 sp = NULL;
1572
1573 if (sp == NULL) {
cfb0919c 1574 ql_dbg(ql_dbg_io, vha, 0x3017,
7c3df132 1575 "Invalid status handle (0x%x).\n", sts->handle);
1da177e4 1576
8f7daead
GM		 1577 if (IS_QLA82XX(ha))
1578 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1579 else
1580 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
e315cd28 1581 qla2xxx_wake_dpc(vha);
1da177e4
LT		 1582 return;
1583 }
9ba56b95 1584 cp = GET_CMD_SP(sp);
1da177e4 1585 if (cp == NULL) {
cfb0919c 1586 ql_dbg(ql_dbg_io, vha, 0x3018,
7c3df132
SK		 1587 "Command already returned (0x%x/%p).\n",
1588 sts->handle, sp);
1da177e4
LT		 1589
1590 return;
1591 }
1592
9a853f71 1593 lscsi_status = scsi_status & STATUS_MASK;
1da177e4 1594
bdf79621 1595 fcport = sp->fcport;
1da177e4 1596
b7d2280c 1597 ox_id = 0;
5544213b
AV		 1598 sense_len = par_sense_len = rsp_info_len = resid_len =
1599 fw_resid_len = 0;
e428924c 1600 if (IS_FWI2_CAPABLE(ha)) {
0f00a206
LC		 1601 if (scsi_status & SS_SENSE_LEN_VALID)
1602 sense_len = le32_to_cpu(sts24->sense_len);
1603 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1604 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1605 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1606 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1607 if (comp_status == CS_DATA_UNDERRUN)
1608 fw_resid_len = le32_to_cpu(sts24->residual_len);
9a853f71
AV		 1609 rsp_info = sts24->data;
1610 sense_data = sts24->data;
1611 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
b7d2280c 1612 ox_id = le16_to_cpu(sts24->ox_id);
5544213b 1613 par_sense_len = sizeof(sts24->data);
9a853f71 1614 } else {
0f00a206
LC		 1615 if (scsi_status & SS_SENSE_LEN_VALID)
1616 sense_len = le16_to_cpu(sts->req_sense_length);
1617 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1618 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
9a853f71
AV		 1619 resid_len = le32_to_cpu(sts->residual_length);
1620 rsp_info = sts->rsp_info;
1621 sense_data = sts->req_sense_data;
5544213b 1622 par_sense_len = sizeof(sts->req_sense_data);
9a853f71
AV		 1623 }
1624
1da177e4
LT		 1625 /* Check for any FCP transport errors. */
1626 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
9a853f71 1627 /* Sense data lies beyond any FCP RESPONSE data. */
5544213b 1628 if (IS_FWI2_CAPABLE(ha)) {
9a853f71 1629 sense_data += rsp_info_len;
5544213b
AV		 1630 par_sense_len -= rsp_info_len;
1631 }
9a853f71 1632 if (rsp_info_len > 3 && rsp_info[3]) {
cfb0919c 1633 ql_dbg(ql_dbg_io, vha, 0x3019,
7c3df132
SK		 1634 "FCP I/O protocol failure (0x%x/0x%x).\n",
1635 rsp_info_len, rsp_info[3]);
1da177e4 1636
9ba56b95 1637 res = DID_BUS_BUSY << 16;
b7d2280c 1638 goto out;
1da177e4
LT		 1639 }
1640 }
1641
3e8ce320
AV		 1642 /* Check for overrun. */
1643 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1644 scsi_status & SS_RESIDUAL_OVER)
1645 comp_status = CS_DATA_OVERRUN;
1646
1da177e4
LT		 1647 /*
1648 * Based on Host and scsi status generate status code for Linux
1649 */
1650 switch (comp_status) {
1651 case CS_COMPLETE:
df7baa50 1652 case CS_QUEUE_FULL:
1da177e4 1653 if (scsi_status == 0) {
9ba56b95 1654 res = DID_OK << 16;
1da177e4
LT		 1655 break;
1656 }
1657 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
9a853f71 1658 resid = resid_len;
385d70b4 1659 scsi_set_resid(cp, resid);
0da69df1
AV		 1660
1661 if (!lscsi_status &&
385d70b4 1662 ((unsigned)(scsi_bufflen(cp) - resid) <
0da69df1 1663 cp->underflow)) {
cfb0919c 1664 ql_dbg(ql_dbg_io, vha, 0x301a,
7c3df132 1665 "Mid-layer underflow "
b7d2280c 1666 "detected (0x%x of 0x%x bytes).\n",
7c3df132 1667 resid, scsi_bufflen(cp));
0da69df1 1668
9ba56b95 1669 res = DID_ERROR << 16;
0da69df1
AV		 1670 break;
1671 }
1da177e4 1672 }
9ba56b95 1673 res = DID_OK << 16 | lscsi_status;
1da177e4 1674
df7baa50 1675 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
cfb0919c 1676 ql_dbg(ql_dbg_io, vha, 0x301b,
7c3df132 1677 "QUEUE FULL detected.\n");
df7baa50
AV		 1678 break;
1679 }
b7d2280c 1680 logit = 0;
1da177e4
LT		 1681 if (lscsi_status != SS_CHECK_CONDITION)
1682 break;
1683
b80ca4f7 1684 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1685 if (!(scsi_status & SS_SENSE_LEN_VALID))
1686 break;
1687
5544213b 1688 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
9ba56b95 1689 rsp, res);
1da177e4
LT		 1690 break;
1691
1692 case CS_DATA_UNDERRUN:
ed17c71b 1693 /* Use F/W calculated residual length. */
0f00a206
LC		 1694 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1695 scsi_set_resid(cp, resid);
1696 if (scsi_status & SS_RESIDUAL_UNDER) {
1697 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
cfb0919c 1698 ql_dbg(ql_dbg_io, vha, 0x301d,
7c3df132
SK		 1699 "Dropped frame(s) detected "
1700 "(0x%x of 0x%x bytes).\n",
1701 resid, scsi_bufflen(cp));
0f00a206 1702
9ba56b95 1703 res = DID_ERROR << 16 | lscsi_status;
4e85e3d9 1704 goto check_scsi_status;
6acf8190 1705 }
ed17c71b 1706
0f00a206
LC		 1707 if (!lscsi_status &&
1708 ((unsigned)(scsi_bufflen(cp) - resid) <
1709 cp->underflow)) {
cfb0919c 1710 ql_dbg(ql_dbg_io, vha, 0x301e,
7c3df132 1711 "Mid-layer underflow "
b7d2280c 1712 "detected (0x%x of 0x%x bytes).\n",
7c3df132 1713 resid, scsi_bufflen(cp));
e038a1be 1714
9ba56b95 1715 res = DID_ERROR << 16;
0f00a206
LC		 1716 break;
1717 }
0374f55e 1718 } else {
cfb0919c 1719 ql_dbg(ql_dbg_io, vha, 0x301f,
7c3df132
SK		 1720 "Dropped frame(s) detected (0x%x "
1721 "of 0x%x bytes).\n", resid, scsi_bufflen(cp));
0f00a206 1722
9ba56b95 1723 res = DID_ERROR << 16 | lscsi_status;
0374f55e 1724 goto check_scsi_status;
1da177e4
LT		 1725 }
1726
9ba56b95 1727 res = DID_OK << 16 | lscsi_status;
b7d2280c 1728 logit = 0;
0f00a206 1729
0374f55e 1730check_scsi_status:
1da177e4 1731 /*
fa2a1ce5 1732 * Check to see if SCSI Status is non zero. If so report SCSI
1da177e4
LT		 1733 * Status.
1734 */
1735 if (lscsi_status != 0) {
ffec28a3 1736 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
cfb0919c 1737 ql_dbg(ql_dbg_io, vha, 0x3020,
7c3df132 1738 "QUEUE FULL detected.\n");
b7d2280c 1739 logit = 1;
ffec28a3
AV		 1740 break;
1741 }
1da177e4
LT		 1742 if (lscsi_status != SS_CHECK_CONDITION)
1743 break;
1744
b80ca4f7 1745 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1746 if (!(scsi_status & SS_SENSE_LEN_VALID))
1747 break;
1748
5544213b 1749 qla2x00_handle_sense(sp, sense_data, par_sense_len,
9ba56b95 1750 sense_len, rsp, res);
1da177e4
LT		 1751 }
1752 break;
1753
1da177e4
LT		 1754 case CS_PORT_LOGGED_OUT:
1755 case CS_PORT_CONFIG_CHG:
1756 case CS_PORT_BUSY:
1757 case CS_INCOMPLETE:
1758 case CS_PORT_UNAVAILABLE:
b7d2280c 1759 case CS_TIMEOUT:
ff454b01
CD		 1760 case CS_RESET:
1761
056a4483
MC		 1762 /*
1763 * We are going to have the fc class block the rport
1764 * while we try to recover so instruct the mid layer
1765 * to requeue until the class decides how to handle this.
1766 */
9ba56b95 1767 res = DID_TRANSPORT_DISRUPTED << 16;
b7d2280c
AV		 1768
1769 if (comp_status == CS_TIMEOUT) {
1770 if (IS_FWI2_CAPABLE(ha))
1771 break;
1772 else if ((le16_to_cpu(sts->status_flags) &
1773 SF_LOGOUT_SENT) == 0)
1774 break;
1775 }
1776
7c3df132
SK		 1777 ql_dbg(ql_dbg_io, vha, 0x3021,
1778 "Port down status: port-state=0x%x.\n",
1779 atomic_read(&fcport->state));
b7d2280c 1780
a7a28504 1781 if (atomic_read(&fcport->state) == FCS_ONLINE)
e315cd28 1782 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1da177e4
LT		 1783 break;
1784
1da177e4 1785 case CS_ABORTED:
9ba56b95 1786 res = DID_RESET << 16;
1da177e4 1787 break;
bad75002
AE		 1788
1789 case CS_DIF_ERROR:
8cb2049c 1790 logit = qla2x00_handle_dif_error(sp, sts24);
bad75002 1791 break;
1da177e4 1792 default:
9ba56b95 1793 res = DID_ERROR << 16;
1da177e4
LT		 1794 break;
1795 }
1796
b7d2280c
AV		 1797out:
1798 if (logit)
7c3df132
SK		 1799 ql_dbg(ql_dbg_io, vha, 0x3022,
1800 "FCP command status: 0x%x-0x%x (0x%x) "
cfb0919c
CD		 1801 "nexus=%ld:%d:%d portid=%02x%02x%02x oxid=0x%x "
1802 "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
7c3df132 1803 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
9ba56b95 1804 comp_status, scsi_status, res, vha->host_no,
cfb0919c
CD		 1805 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
1806 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
1807 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1808 cp->cmnd[4], cp->cmnd[5], cp->cmnd[6], cp->cmnd[7],
1809 cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
7c3df132 1810 resid_len, fw_resid_len);
b7d2280c 1811
2afa19a9 1812 if (rsp->status_srb == NULL)
9ba56b95 1813 sp->done(ha, sp, res);
1da177e4
LT		 1814}
1815
1816/**
1817 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1818 * @ha: SCSI driver HA context
1819 * @pkt: Entry pointer
1820 *
1821 * Extended sense data.
1822 */
1823static void
2afa19a9 1824qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1da177e4 1825{
9ba56b95 1826 uint8_t sense_sz = 0;
2afa19a9 1827 struct qla_hw_data *ha = rsp->hw;
7c3df132 1828 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
9ba56b95 1829 srb_t *sp = rsp->status_srb;
1da177e4 1830 struct scsi_cmnd *cp;
9ba56b95
GM		 1831 uint32_t sense_len;
1832 uint8_t *sense_ptr;
1da177e4 1833
9ba56b95
GM		 1834 if (!sp || !GET_CMD_SENSE_LEN(sp))
1835 return;
1da177e4 1836
9ba56b95
GM		 1837 sense_len = GET_CMD_SENSE_LEN(sp);
1838 sense_ptr = GET_CMD_SENSE_PTR(sp);
1da177e4 1839
9ba56b95
GM		 1840 cp = GET_CMD_SP(sp);
1841 if (cp == NULL) {
1842 ql_log(ql_log_warn, vha, 0x3025,
1843 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
1da177e4 1844
9ba56b95
GM		 1845 rsp->status_srb = NULL;
1846 return;
1da177e4 1847 }
1da177e4 1848
9ba56b95
GM		 1849 if (sense_len > sizeof(pkt->data))
1850 sense_sz = sizeof(pkt->data);
1851 else
1852 sense_sz = sense_len;
c4631191 1853
9ba56b95
GM		 1854 /* Move sense data. */
1855 if (IS_FWI2_CAPABLE(ha))
1856 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1857 memcpy(sense_ptr, pkt->data, sense_sz);
1858 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
1859 sense_ptr, sense_sz);
c4631191 1860
9ba56b95
GM		 1861 sense_len -= sense_sz;
1862 sense_ptr += sense_sz;
c4631191 1863
9ba56b95
GM		 1864 SET_CMD_SENSE_PTR(sp, sense_ptr);
1865 SET_CMD_SENSE_LEN(sp, sense_len);
1866
1867 /* Place command on done queue. */
1868 if (sense_len == 0) {
1869 rsp->status_srb = NULL;
1870 sp->done(ha, sp, cp->result);
c4631191 1871 }
c4631191
GM		 1872}
1873
1da177e4
LT		 1874/**
1875 * qla2x00_error_entry() - Process an error entry.
1876 * @ha: SCSI driver HA context
1877 * @pkt: Entry pointer
1878 */
1879static void
73208dfd 1880qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1da177e4
LT		 1881{
1882 srb_t *sp;
e315cd28 1883 struct qla_hw_data *ha = vha->hw;
c4631191 1884 const char func[] = "ERROR-IOCB";
2afa19a9
AC		 1885 uint16_t que = MSW(pkt->handle);
1886 struct req_que *req = ha->req_q_map[que];
9ba56b95 1887 int res = DID_ERROR << 16;
7c3df132 1888
9ba56b95
GM		 1889 ql_dbg(ql_dbg_async, vha, 0x502a,
1890 "type of error status in response: 0x%x\n", pkt->entry_status);
1891
1892 if (pkt->entry_status & RF_BUSY)
1893 res = DID_BUS_BUSY << 16;
1da177e4 1894
c4631191 1895 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
9ba56b95
GM		 1896 if (sp)
1897 sp->done(ha, sp, res);
1898 else {
7c3df132
SK		 1899 ql_log(ql_log_warn, vha, 0x5030,
1900 "Error entry - invalid handle.\n");
1da177e4 1901
8f7daead
GM		 1902 if (IS_QLA82XX(ha))
1903 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1904 else
1905 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
e315cd28 1906 qla2xxx_wake_dpc(vha);
1da177e4
LT		 1907 }
1908}
1909
9a853f71
AV		 1910/**
1911 * qla24xx_mbx_completion() - Process mailbox command completions.
1912 * @ha: SCSI driver HA context
1913 * @mb0: Mailbox0 register
1914 */
1915static void
e315cd28 1916qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
9a853f71
AV		 1917{
1918 uint16_t cnt;
4fa94f83 1919 uint32_t mboxes;
9a853f71 1920 uint16_t __iomem *wptr;
e315cd28 1921 struct qla_hw_data *ha = vha->hw;
9a853f71
AV		 1922 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1923
4fa94f83
AV		 1924 /* Read all mbox registers? */
1925 mboxes = (1 << ha->mbx_count) - 1;
1926 if (!ha->mcp)
1927 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERRROR.\n");
1928 else
1929 mboxes = ha->mcp->in_mb;
1930
9a853f71
AV		 1931 /* Load return mailbox registers. */
1932 ha->flags.mbox_int = 1;
1933 ha->mailbox_out[0] = mb0;
4fa94f83 1934 mboxes >>= 1;
9a853f71
AV		 1935 wptr = (uint16_t __iomem *)&reg->mailbox1;
1936
1937 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
4fa94f83
AV		 1938 if (mboxes & BIT_0)
1939 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1940
1941 mboxes >>= 1;
9a853f71
AV		 1942 wptr++;
1943 }
9a853f71
AV		 1944}
1945
1946/**
1947 * qla24xx_process_response_queue() - Process response queue entries.
1948 * @ha: SCSI driver HA context
1949 */
2afa19a9
AC		 1950void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1951 struct rsp_que *rsp)
9a853f71 1952{
9a853f71 1953 struct sts_entry_24xx *pkt;
a9083016 1954 struct qla_hw_data *ha = vha->hw;
9a853f71 1955
e315cd28 1956 if (!vha->flags.online)
9a853f71
AV		 1957 return;
1958
e315cd28
AC		 1959 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1960 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
9a853f71 1961
e315cd28
AC		 1962 rsp->ring_index++;
1963 if (rsp->ring_index == rsp->length) {
1964 rsp->ring_index = 0;
1965 rsp->ring_ptr = rsp->ring;
9a853f71 1966 } else {
e315cd28 1967 rsp->ring_ptr++;
9a853f71
AV		 1968 }
1969
1970 if (pkt->entry_status != 0) {
73208dfd 1971 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
9a853f71
AV		 1972 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1973 wmb();
1974 continue;
1975 }
1976
1977 switch (pkt->entry_type) {
1978 case STATUS_TYPE:
73208dfd 1979 qla2x00_status_entry(vha, rsp, pkt);
9a853f71
AV		 1980 break;
1981 case STATUS_CONT_TYPE:
2afa19a9 1982 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
9a853f71 1983 break;
2c3dfe3f 1984 case VP_RPT_ID_IOCB_TYPE:
e315cd28 1985 qla24xx_report_id_acquisition(vha,
2c3dfe3f
SJ		 1986 (struct vp_rpt_id_entry_24xx *)pkt);
1987 break;
ac280b67
AV		 1988 case LOGINOUT_PORT_IOCB_TYPE:
1989 qla24xx_logio_entry(vha, rsp->req,
1990 (struct logio_entry_24xx *)pkt);
1991 break;
3822263e
MI		 1992 case TSK_MGMT_IOCB_TYPE:
1993 qla24xx_tm_iocb_entry(vha, rsp->req,
1994 (struct tsk_mgmt_entry *)pkt);
1995 break;
9a069e19
GM		 1996 case CT_IOCB_TYPE:
1997 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
9a069e19
GM		 1998 break;
1999 case ELS_IOCB_TYPE:
2000 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2001 break;
54883291
SK		 2002 case MARKER_TYPE:
2003 /* Do nothing in this case, this check is to prevent it
2004 * from falling into default case
2005 */
2006 break;
9a853f71
AV		 2007 default:
2008 /* Type Not Supported. */
7c3df132
SK		 2009 ql_dbg(ql_dbg_async, vha, 0x5042,
2010 "Received unknown response pkt type %x "
9a853f71 2011 "entry status=%x.\n",
7c3df132 2012 pkt->entry_type, pkt->entry_status);
9a853f71
AV		 2013 break;
2014 }
2015 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2016 wmb();
2017 }
2018
2019 /* Adjust ring index */
a9083016
GM		 2020 if (IS_QLA82XX(ha)) {
2021 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2022 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2023 } else
2024 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
9a853f71
AV		 2025}
2026
05236a05 2027static void
e315cd28 2028qla2xxx_check_risc_status(scsi_qla_host_t *vha)
05236a05
AV		 2029{
2030 int rval;
2031 uint32_t cnt;
e315cd28 2032 struct qla_hw_data *ha = vha->hw;
05236a05
AV		 2033 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2034
6246b8a1 2035 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
05236a05
AV		 2036 return;
2037
2038 rval = QLA_SUCCESS;
2039 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2040 RD_REG_DWORD(&reg->iobase_addr);
2041 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2042 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2043 rval == QLA_SUCCESS; cnt--) {
2044 if (cnt) {
2045 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2046 udelay(10);
2047 } else
2048 rval = QLA_FUNCTION_TIMEOUT;
2049 }
2050 if (rval == QLA_SUCCESS)
2051 goto next_test;
2052
2053 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2054 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2055 rval == QLA_SUCCESS; cnt--) {
2056 if (cnt) {
2057 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2058 udelay(10);
2059 } else
2060 rval = QLA_FUNCTION_TIMEOUT;
2061 }
2062 if (rval != QLA_SUCCESS)
2063 goto done;
2064
2065next_test:
2066 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
7c3df132
SK		 2067 ql_log(ql_log_info, vha, 0x504c,
2068 "Additional code -- 0x55AA.\n");
05236a05
AV		 2069
2070done:
2071 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2072 RD_REG_DWORD(&reg->iobase_window);
2073}
2074
9a853f71 2075/**
6246b8a1 2076 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
9a853f71
AV		 2077 * @irq:
2078 * @dev_id: SCSI driver HA context
9a853f71
AV		 2079 *
2080 * Called by system whenever the host adapter generates an interrupt.
2081 *
2082 * Returns handled flag.
2083 */
2084irqreturn_t
7d12e780 2085qla24xx_intr_handler(int irq, void *dev_id)
9a853f71 2086{
e315cd28
AC		 2087 scsi_qla_host_t *vha;
2088 struct qla_hw_data *ha;
9a853f71
AV		 2089 struct device_reg_24xx __iomem *reg;
2090 int status;
9a853f71
AV		 2091 unsigned long iter;
2092 uint32_t stat;
2093 uint32_t hccr;
2094 uint16_t mb[4];
e315cd28 2095 struct rsp_que *rsp;
43fac4d9 2096 unsigned long flags;
9a853f71 2097
e315cd28
AC		 2098 rsp = (struct rsp_que *) dev_id;
2099 if (!rsp) {
9a853f71 2100 printk(KERN_INFO
7c3df132 2101 "%s(): NULL response queue pointer.\n", __func__);
9a853f71
AV		 2102 return IRQ_NONE;
2103 }
2104
e315cd28 2105 ha = rsp->hw;
9a853f71
AV		 2106 reg = &ha->iobase->isp24;
2107 status = 0;
2108
85880801
AV		 2109 if (unlikely(pci_channel_offline(ha->pdev)))
2110 return IRQ_HANDLED;
2111
43fac4d9 2112 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 2113 vha = pci_get_drvdata(ha->pdev);
9a853f71
AV		 2114 for (iter = 50; iter--; ) {
2115 stat = RD_REG_DWORD(&reg->host_status);
2116 if (stat & HSRX_RISC_PAUSED) {
85880801 2117 if (unlikely(pci_channel_offline(ha->pdev)))
14e660e6
SJ		 2118 break;
2119
9a853f71
AV		 2120 hccr = RD_REG_DWORD(&reg->hccr);
2121
7c3df132
SK		 2122 ql_log(ql_log_warn, vha, 0x504b,
2123 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2124 hccr);
05236a05 2125
e315cd28 2126 qla2xxx_check_risc_status(vha);
05236a05 2127
e315cd28
AC		 2128 ha->isp_ops->fw_dump(vha, 1);
2129 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9a853f71
AV		 2130 break;
2131 } else if ((stat & HSRX_RISC_INT) == 0)
2132 break;
2133
2134 switch (stat & 0xff) {
2135 case 0x1:
2136 case 0x2:
2137 case 0x10:
2138 case 0x11:
e315cd28 2139 qla24xx_mbx_completion(vha, MSW(stat));
9a853f71
AV		 2140 status |= MBX_INTERRUPT;
2141
2142 break;
2143 case 0x12:
2144 mb[0] = MSW(stat);
2145 mb[1] = RD_REG_WORD(&reg->mailbox1);
2146 mb[2] = RD_REG_WORD(&reg->mailbox2);
2147 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 2148 qla2x00_async_event(vha, rsp, mb);
9a853f71
AV		 2149 break;
2150 case 0x13:
73208dfd 2151 case 0x14:
2afa19a9 2152 qla24xx_process_response_queue(vha, rsp);
9a853f71
AV		 2153 break;
2154 default:
7c3df132
SK		 2155 ql_dbg(ql_dbg_async, vha, 0x504f,
2156 "Unrecognized interrupt type (%d).\n", stat * 0xff);
9a853f71
AV		 2157 break;
2158 }
2159 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2160 RD_REG_DWORD_RELAXED(&reg->hccr);
2161 }
43fac4d9 2162 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9a853f71
AV		 2163
2164 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2165 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
9a853f71 2166 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 2167 complete(&ha->mbx_intr_comp);
9a853f71
AV		 2168 }
2169
2170 return IRQ_HANDLED;
2171}
2172
a8488abe
AV		 2173static irqreturn_t
2174qla24xx_msix_rsp_q(int irq, void *dev_id)
2175{
e315cd28
AC		 2176 struct qla_hw_data *ha;
2177 struct rsp_que *rsp;
a8488abe 2178 struct device_reg_24xx __iomem *reg;
2afa19a9 2179 struct scsi_qla_host *vha;
0f19bc68 2180 unsigned long flags;
a8488abe 2181
e315cd28
AC		 2182 rsp = (struct rsp_que *) dev_id;
2183 if (!rsp) {
2184 printk(KERN_INFO
7c3df132 2185 "%s(): NULL response queue pointer.\n", __func__);
e315cd28
AC		 2186 return IRQ_NONE;
2187 }
2188 ha = rsp->hw;
a8488abe
AV		 2189 reg = &ha->iobase->isp24;
2190
0f19bc68 2191 spin_lock_irqsave(&ha->hardware_lock, flags);
a8488abe 2192
a67093d4 2193 vha = pci_get_drvdata(ha->pdev);
2afa19a9 2194 qla24xx_process_response_queue(vha, rsp);
3155754a 2195 if (!ha->flags.disable_msix_handshake) {
eb94114b
AC		 2196 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2197 RD_REG_DWORD_RELAXED(&reg->hccr);
2198 }
0f19bc68 2199 spin_unlock_irqrestore(&ha->hardware_lock, flags);
a8488abe
AV		 2200
2201 return IRQ_HANDLED;
2202}
2203
68ca949c
AC		 2204static irqreturn_t
2205qla25xx_msix_rsp_q(int irq, void *dev_id)
2206{
2207 struct qla_hw_data *ha;
2208 struct rsp_que *rsp;
3155754a 2209 struct device_reg_24xx __iomem *reg;
0f19bc68 2210 unsigned long flags;
68ca949c
AC		 2211
2212 rsp = (struct rsp_que *) dev_id;
2213 if (!rsp) {
2214 printk(KERN_INFO
7c3df132 2215 "%s(): NULL response queue pointer.\n", __func__);
68ca949c
AC		 2216 return IRQ_NONE;
2217 }
2218 ha = rsp->hw;
2219
3155754a 2220 /* Clear the interrupt, if enabled, for this response queue */
d424754c 2221 if (!ha->flags.disable_msix_handshake) {
3155754a 2222 reg = &ha->iobase->isp24;
0f19bc68 2223 spin_lock_irqsave(&ha->hardware_lock, flags);
3155754a
AC		 2224 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2225 RD_REG_DWORD_RELAXED(&reg->hccr);
0f19bc68 2226 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3155754a 2227 }
68ca949c
AC		 2228 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2229
2230 return IRQ_HANDLED;
2231}
2232
a8488abe
AV		 2233static irqreturn_t
2234qla24xx_msix_default(int irq, void *dev_id)
2235{
e315cd28
AC		 2236 scsi_qla_host_t *vha;
2237 struct qla_hw_data *ha;
2238 struct rsp_que *rsp;
a8488abe
AV		 2239 struct device_reg_24xx __iomem *reg;
2240 int status;
a8488abe
AV		 2241 uint32_t stat;
2242 uint32_t hccr;
2243 uint16_t mb[4];
0f19bc68 2244 unsigned long flags;
a8488abe 2245
e315cd28
AC		 2246 rsp = (struct rsp_que *) dev_id;
2247 if (!rsp) {
7c3df132
SK		 2248 printk(KERN_INFO
2249 "%s(): NULL response queue pointer.\n", __func__);
e315cd28
AC		 2250 return IRQ_NONE;
2251 }
2252 ha = rsp->hw;
a8488abe
AV		 2253 reg = &ha->iobase->isp24;
2254 status = 0;
2255
0f19bc68 2256 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 2257 vha = pci_get_drvdata(ha->pdev);
87f27015 2258 do {
a8488abe
AV		 2259 stat = RD_REG_DWORD(&reg->host_status);
2260 if (stat & HSRX_RISC_PAUSED) {
85880801 2261 if (unlikely(pci_channel_offline(ha->pdev)))
14e660e6
SJ		 2262 break;
2263
a8488abe
AV		 2264 hccr = RD_REG_DWORD(&reg->hccr);
2265
7c3df132
SK		 2266 ql_log(ql_log_info, vha, 0x5050,
2267 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2268 hccr);
05236a05 2269
e315cd28 2270 qla2xxx_check_risc_status(vha);
05236a05 2271
e315cd28
AC		 2272 ha->isp_ops->fw_dump(vha, 1);
2273 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
a8488abe
AV		 2274 break;
2275 } else if ((stat & HSRX_RISC_INT) == 0)
2276 break;
2277
2278 switch (stat & 0xff) {
2279 case 0x1:
2280 case 0x2:
2281 case 0x10:
2282 case 0x11:
e315cd28 2283 qla24xx_mbx_completion(vha, MSW(stat));
a8488abe
AV		 2284 status |= MBX_INTERRUPT;
2285
2286 break;
2287 case 0x12:
2288 mb[0] = MSW(stat);
2289 mb[1] = RD_REG_WORD(&reg->mailbox1);
2290 mb[2] = RD_REG_WORD(&reg->mailbox2);
2291 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 2292 qla2x00_async_event(vha, rsp, mb);
a8488abe
AV		 2293 break;
2294 case 0x13:
73208dfd 2295 case 0x14:
2afa19a9 2296 qla24xx_process_response_queue(vha, rsp);
a8488abe
AV		 2297 break;
2298 default:
7c3df132
SK		 2299 ql_dbg(ql_dbg_async, vha, 0x5051,
2300 "Unrecognized interrupt type (%d).\n", stat & 0xff);
a8488abe
AV		 2301 break;
2302 }
2303 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
87f27015 2304 } while (0);
0f19bc68 2305 spin_unlock_irqrestore(&ha->hardware_lock, flags);
a8488abe
AV		 2306
2307 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2308 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
a8488abe 2309 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 2310 complete(&ha->mbx_intr_comp);
a8488abe 2311 }
a8488abe
AV		 2312 return IRQ_HANDLED;
2313}
2314
2315/* Interrupt handling helpers. */
2316
2317struct qla_init_msix_entry {
a8488abe 2318 const char *name;
476834c2 2319 irq_handler_t handler;
a8488abe
AV		 2320};
2321
68ca949c 2322static struct qla_init_msix_entry msix_entries[3] = {
2afa19a9
AC		 2323 { "qla2xxx (default)", qla24xx_msix_default },
2324 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
68ca949c 2325 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
a8488abe
AV		 2326};
2327
a9083016
GM		 2328static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2329 { "qla2xxx (default)", qla82xx_msix_default },
2330 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2331};
2332
a8488abe 2333static void
e315cd28 2334qla24xx_disable_msix(struct qla_hw_data *ha)
a8488abe
AV		 2335{
2336 int i;
2337 struct qla_msix_entry *qentry;
7c3df132 2338 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a8488abe 2339
73208dfd
AC		 2340 for (i = 0; i < ha->msix_count; i++) {
2341 qentry = &ha->msix_entries[i];
a8488abe 2342 if (qentry->have_irq)
73208dfd 2343 free_irq(qentry->vector, qentry->rsp);
a8488abe
AV		 2344 }
2345 pci_disable_msix(ha->pdev);
73208dfd
AC		 2346 kfree(ha->msix_entries);
2347 ha->msix_entries = NULL;
2348 ha->flags.msix_enabled = 0;
7c3df132
SK		 2349 ql_dbg(ql_dbg_init, vha, 0x0042,
2350 "Disabled the MSI.\n");
a8488abe
AV		 2351}
2352
2353static int
73208dfd 2354qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe 2355{
ad038fa8 2356#define MIN_MSIX_COUNT 2
a8488abe 2357 int i, ret;
73208dfd 2358 struct msix_entry *entries;
a8488abe 2359 struct qla_msix_entry *qentry;
7c3df132 2360 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
73208dfd
AC		 2361
2362 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
a9083016 2363 GFP_KERNEL);
7c3df132
SK		 2364 if (!entries) {
2365 ql_log(ql_log_warn, vha, 0x00bc,
2366 "Failed to allocate memory for msix_entry.\n");
73208dfd 2367 return -ENOMEM;
7c3df132 2368 }
a8488abe 2369
73208dfd
AC		 2370 for (i = 0; i < ha->msix_count; i++)
2371 entries[i].entry = i;
a8488abe 2372
73208dfd 2373 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
a8488abe 2374 if (ret) {
ad038fa8
LC		 2375 if (ret < MIN_MSIX_COUNT)
2376 goto msix_failed;
2377
7c3df132
SK		 2378 ql_log(ql_log_warn, vha, 0x00c6,
2379 "MSI-X: Failed to enable support "
2380 "-- %d/%d\n Retry with %d vectors.\n",
2381 ha->msix_count, ret, ret);
73208dfd
AC		 2382 ha->msix_count = ret;
2383 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2384 if (ret) {
ad038fa8 2385msix_failed:
7c3df132
SK		 2386 ql_log(ql_log_fatal, vha, 0x00c7,
2387 "MSI-X: Failed to enable support, "
2388 "giving up -- %d/%d.\n",
2389 ha->msix_count, ret);
73208dfd
AC		 2390 goto msix_out;
2391 }
2afa19a9 2392 ha->max_rsp_queues = ha->msix_count - 1;
73208dfd
AC		 2393 }
2394 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2395 ha->msix_count, GFP_KERNEL);
2396 if (!ha->msix_entries) {
7c3df132
SK		 2397 ql_log(ql_log_fatal, vha, 0x00c8,
2398 "Failed to allocate memory for ha->msix_entries.\n");
73208dfd 2399 ret = -ENOMEM;
a8488abe
AV		 2400 goto msix_out;
2401 }
2402 ha->flags.msix_enabled = 1;
2403
73208dfd
AC		 2404 for (i = 0; i < ha->msix_count; i++) {
2405 qentry = &ha->msix_entries[i];
2406 qentry->vector = entries[i].vector;
2407 qentry->entry = entries[i].entry;
a8488abe 2408 qentry->have_irq = 0;
73208dfd 2409 qentry->rsp = NULL;
a8488abe
AV		 2410 }
2411
2afa19a9
AC		 2412 /* Enable MSI-X vectors for the base queue */
2413 for (i = 0; i < 2; i++) {
2414 qentry = &ha->msix_entries[i];
a9083016
GM		 2415 if (IS_QLA82XX(ha)) {
2416 ret = request_irq(qentry->vector,
2417 qla82xx_msix_entries[i].handler,
2418 0, qla82xx_msix_entries[i].name, rsp);
2419 } else {
2420 ret = request_irq(qentry->vector,
2421 msix_entries[i].handler,
2422 0, msix_entries[i].name, rsp);
2423 }
2afa19a9 2424 if (ret) {
7c3df132
SK		 2425 ql_log(ql_log_fatal, vha, 0x00cb,
2426 "MSI-X: unable to register handler -- %x/%d.\n",
2427 qentry->vector, ret);
2afa19a9
AC		 2428 qla24xx_disable_msix(ha);
2429 ha->mqenable = 0;
2430 goto msix_out;
2431 }
2432 qentry->have_irq = 1;
2433 qentry->rsp = rsp;
2434 rsp->msix = qentry;
73208dfd 2435 }
73208dfd
AC		 2436
2437 /* Enable MSI-X vector for response queue update for queue 0 */
6246b8a1
GM		 2438 if (IS_QLA83XX(ha)) {
2439 if (ha->msixbase && ha->mqiobase &&
2440 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2441 ha->mqenable = 1;
2442 } else
2443 if (ha->mqiobase
2444 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2445 ha->mqenable = 1;
7c3df132
SK		 2446 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2447 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2448 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2449 ql_dbg(ql_dbg_init, vha, 0x0055,
2450 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2451 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
73208dfd 2452
a8488abe 2453msix_out:
73208dfd 2454 kfree(entries);
a8488abe
AV		 2455 return ret;
2456}
2457
2458int
73208dfd 2459qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe
AV		 2460{
2461 int ret;
963b0fdd 2462 device_reg_t __iomem *reg = ha->iobase;
7c3df132 2463 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a8488abe
AV		 2464
2465 /* If possible, enable MSI-X. */
6246b8a1
GM		 2466 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2467 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha))
6377a7ae
BH		 2468 goto skip_msi;
2469
2470 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2471 (ha->pdev->subsystem_device == 0x7040 ||
2472 ha->pdev->subsystem_device == 0x7041 ||
2473 ha->pdev->subsystem_device == 0x1705)) {
7c3df132
SK		 2474 ql_log(ql_log_warn, vha, 0x0034,
2475 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
6377a7ae 2476 ha->pdev->subsystem_vendor,
7c3df132 2477 ha->pdev->subsystem_device);
6377a7ae
BH		 2478 goto skip_msi;
2479 }
a8488abe 2480
42cd4f5d 2481 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
7c3df132
SK		 2482 ql_log(ql_log_warn, vha, 0x0035,
2483 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
42cd4f5d 2484 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
a8488abe
AV		 2485 goto skip_msix;
2486 }
2487
73208dfd 2488 ret = qla24xx_enable_msix(ha, rsp);
a8488abe 2489 if (!ret) {
7c3df132
SK		 2490 ql_dbg(ql_dbg_init, vha, 0x0036,
2491 "MSI-X: Enabled (0x%X, 0x%X).\n",
2492 ha->chip_revision, ha->fw_attributes);
963b0fdd 2493 goto clear_risc_ints;
a8488abe 2494 }
7c3df132
SK		 2495 ql_log(ql_log_info, vha, 0x0037,
2496 "MSI-X Falling back-to MSI mode -%d.\n", ret);
a8488abe 2497skip_msix:
cbedb601 2498
3a03eb79
AV		 2499 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2500 !IS_QLA8001(ha))
cbedb601
AV		 2501 goto skip_msi;
2502
2503 ret = pci_enable_msi(ha->pdev);
2504 if (!ret) {
7c3df132
SK		 2505 ql_dbg(ql_dbg_init, vha, 0x0038,
2506 "MSI: Enabled.\n");
cbedb601 2507 ha->flags.msi_enabled = 1;
a9083016 2508 } else
7c3df132
SK		 2509 ql_log(ql_log_warn, vha, 0x0039,
2510 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
cbedb601
AV		 2511skip_msi:
2512
fd34f556 2513 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
7992abfc
MH		 2514 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2515 QLA2XXX_DRIVER_NAME, rsp);
963b0fdd 2516 if (ret) {
7c3df132 2517 ql_log(ql_log_warn, vha, 0x003a,
a8488abe
AV		 2518 "Failed to reserve interrupt %d already in use.\n",
2519 ha->pdev->irq);
963b0fdd
AV		 2520 goto fail;
2521 }
7992abfc 2522
963b0fdd
AV		 2523clear_risc_ints:
2524
3a03eb79
AV		 2525 /*
2526 * FIXME: Noted that 8014s were being dropped during NK testing.
2527 * Timing deltas during MSI-X/INTa transitions?
2528 */
6246b8a1 2529 if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA83XX(ha))
3a03eb79 2530 goto fail;
c6952483 2531 spin_lock_irq(&ha->hardware_lock);
963b0fdd
AV		 2532 if (IS_FWI2_CAPABLE(ha)) {
2533 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2534 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2535 } else {
2536 WRT_REG_WORD(&reg->isp.semaphore, 0);
2537 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2538 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
a8488abe 2539 }
c6952483 2540 spin_unlock_irq(&ha->hardware_lock);
a8488abe 2541
963b0fdd 2542fail:
a8488abe
AV		 2543 return ret;
2544}
2545
2546void
e315cd28 2547qla2x00_free_irqs(scsi_qla_host_t *vha)
a8488abe 2548{
e315cd28 2549 struct qla_hw_data *ha = vha->hw;
73208dfd 2550 struct rsp_que *rsp = ha->rsp_q_map[0];
a8488abe
AV		 2551
2552 if (ha->flags.msix_enabled)
2553 qla24xx_disable_msix(ha);
90a86fc0 2554 else if (ha->flags.msi_enabled) {
e315cd28 2555 free_irq(ha->pdev->irq, rsp);
cbedb601 2556 pci_disable_msi(ha->pdev);
90a86fc0
JC		 2557 } else
2558 free_irq(ha->pdev->irq, rsp);
a8488abe 2559}
e315cd28 2560
73208dfd
AC		 2561
2562int qla25xx_request_irq(struct rsp_que *rsp)
2563{
2564 struct qla_hw_data *ha = rsp->hw;
2afa19a9 2565 struct qla_init_msix_entry *intr = &msix_entries[2];
73208dfd 2566 struct qla_msix_entry *msix = rsp->msix;
7c3df132 2567 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
73208dfd
AC		 2568 int ret;
2569
2570 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2571 if (ret) {
7c3df132
SK		 2572 ql_log(ql_log_fatal, vha, 0x00e6,
2573 "MSI-X: Unable to register handler -- %x/%d.\n",
2574 msix->vector, ret);
73208dfd
AC		 2575 return ret;
2576 }
2577 msix->have_irq = 1;
2578 msix->rsp = rsp;
2579 return ret;
2580}
Linux 6.x block layer and io_uring tree(s)