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[SCSI] qla2xxx: Update to dynamic logging.
[mirror_ubuntu-jammy-kernel.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;
245 uint16_t __iomem *wptr;
e315cd28 246 struct qla_hw_data *ha = vha->hw;
3d71644c 247 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 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++) {
fa2a1ce5 255 if (IS_QLA2200(ha) && cnt == 8)
1da177e4
LT		 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);
fa2a1ce5 261
1da177e4
LT		 262 wptr++;
263 }
264
cfb0919c
CD		 265 if (!ha->mcp)
266 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
1da177e4
LT		 267}
268
8a659571
AV		 269static void
270qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
271{
272 static char *event[] =
273 { "Complete", "Request Notification", "Time Extension" };
274 int rval;
275 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
276 uint16_t __iomem *wptr;
277 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
278
279 /* Seed data -- mailbox1 -> mailbox7. */
280 wptr = (uint16_t __iomem *)&reg24->mailbox1;
281 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
282 mb[cnt] = RD_REG_WORD(wptr);
283
7c3df132
SK		 284 ql_dbg(ql_dbg_async, vha, 0x5021,
285 "Inter-Driver Commucation %s -- "
286 "%04x %04x %04x %04x %04x %04x %04x.\n",
287 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
288 mb[4], mb[5], mb[6]);
8a659571
AV		 289
290 /* Acknowledgement needed? [Notify && non-zero timeout]. */
291 timeout = (descr >> 8) & 0xf;
292 if (aen != MBA_IDC_NOTIFY || !timeout)
293 return;
294
7c3df132 295 ql_dbg(ql_dbg_async, vha, 0x5022,
d8424f68 296 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
7c3df132 297 vha->host_no, event[aen & 0xff], timeout);
8a659571
AV		 298
299 rval = qla2x00_post_idc_ack_work(vha, mb);
300 if (rval != QLA_SUCCESS)
7c3df132 301 ql_log(ql_log_warn, vha, 0x5023,
8a659571
AV		 302 "IDC failed to post ACK.\n");
303}
304
1da177e4
LT		 305/**
306 * qla2x00_async_event() - Process aynchronous events.
307 * @ha: SCSI driver HA context
9a853f71 308 * @mb: Mailbox registers (0 - 3)
1da177e4 309 */
2c3dfe3f 310void
73208dfd 311qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1da177e4 312{
9a853f71 313#define LS_UNKNOWN 2
3a03eb79 314 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" };
1da177e4 315 char *link_speed;
1da177e4 316 uint16_t handle_cnt;
bdab23da 317 uint16_t cnt, mbx;
1da177e4 318 uint32_t handles[5];
e315cd28 319 struct qla_hw_data *ha = vha->hw;
3d71644c 320 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
bdab23da 321 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
bc5c2aad 322 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
1da177e4
LT		 323 uint32_t rscn_entry, host_pid;
324 uint8_t rscn_queue_index;
4d4df193 325 unsigned long flags;
1da177e4
LT		 326
327 /* Setup to process RIO completion. */
328 handle_cnt = 0;
a9083016 329 if (IS_QLA8XXX_TYPE(ha))
3a03eb79 330 goto skip_rio;
1da177e4
LT		 331 switch (mb[0]) {
332 case MBA_SCSI_COMPLETION:
9a853f71 333 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 334 handle_cnt = 1;
335 break;
336 case MBA_CMPLT_1_16BIT:
9a853f71 337 handles[0] = mb[1];
1da177e4
LT		 338 handle_cnt = 1;
339 mb[0] = MBA_SCSI_COMPLETION;
340 break;
341 case MBA_CMPLT_2_16BIT:
9a853f71
AV		 342 handles[0] = mb[1];
343 handles[1] = mb[2];
1da177e4
LT		 344 handle_cnt = 2;
345 mb[0] = MBA_SCSI_COMPLETION;
346 break;
347 case MBA_CMPLT_3_16BIT:
9a853f71
AV		 348 handles[0] = mb[1];
349 handles[1] = mb[2];
350 handles[2] = mb[3];
1da177e4
LT		 351 handle_cnt = 3;
352 mb[0] = MBA_SCSI_COMPLETION;
353 break;
354 case MBA_CMPLT_4_16BIT:
9a853f71
AV		 355 handles[0] = mb[1];
356 handles[1] = mb[2];
357 handles[2] = mb[3];
1da177e4
LT		 358 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
359 handle_cnt = 4;
360 mb[0] = MBA_SCSI_COMPLETION;
361 break;
362 case MBA_CMPLT_5_16BIT:
9a853f71
AV		 363 handles[0] = mb[1];
364 handles[1] = mb[2];
365 handles[2] = mb[3];
1da177e4
LT		 366 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
367 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
368 handle_cnt = 5;
369 mb[0] = MBA_SCSI_COMPLETION;
370 break;
371 case MBA_CMPLT_2_32BIT:
9a853f71 372 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 373 handles[1] = le32_to_cpu(
374 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
375 RD_MAILBOX_REG(ha, reg, 6));
376 handle_cnt = 2;
377 mb[0] = MBA_SCSI_COMPLETION;
378 break;
379 default:
380 break;
381 }
3a03eb79 382skip_rio:
1da177e4
LT		 383 switch (mb[0]) {
384 case MBA_SCSI_COMPLETION: /* Fast Post */
e315cd28 385 if (!vha->flags.online)
1da177e4
LT		 386 break;
387
388 for (cnt = 0; cnt < handle_cnt; cnt++)
73208dfd
AC		 389 qla2x00_process_completed_request(vha, rsp->req,
390 handles[cnt]);
1da177e4
LT		 391 break;
392
393 case MBA_RESET: /* Reset */
7c3df132
SK		 394 ql_dbg(ql_dbg_async, vha, 0x5002,
395 "Asynchronous RESET.\n");
1da177e4 396
e315cd28 397 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 398 break;
399
400 case MBA_SYSTEM_ERR: /* System Error */
bdab23da 401 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox7) : 0;
7c3df132 402 ql_log(ql_log_warn, vha, 0x5003,
bdab23da
AV		 403 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
404 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
1da177e4 405
e315cd28 406 ha->isp_ops->fw_dump(vha, 1);
1da177e4 407
e428924c 408 if (IS_FWI2_CAPABLE(ha)) {
9a853f71 409 if (mb[1] == 0 && mb[2] == 0) {
7c3df132 410 ql_log(ql_log_fatal, vha, 0x5004,
9a853f71
AV		 411 "Unrecoverable Hardware Error: adapter "
412 "marked OFFLINE!\n");
e315cd28 413 vha->flags.online = 0;
b1d46989 414 } else {
25985edc 415 /* Check to see if MPI timeout occurred */
b1d46989
MI		 416 if ((mbx & MBX_3) && (ha->flags.port0))
417 set_bit(MPI_RESET_NEEDED,
418 &vha->dpc_flags);
419
e315cd28 420 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
b1d46989 421 }
9a853f71 422 } else if (mb[1] == 0) {
7c3df132 423 ql_log(ql_log_fatal, vha, 0x5005,
1da177e4
LT		 424 "Unrecoverable Hardware Error: adapter marked "
425 "OFFLINE!\n");
e315cd28 426 vha->flags.online = 0;
1da177e4 427 } else
e315cd28 428 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 429 break;
430
431 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
7c3df132
SK		 432 ql_log(ql_log_warn, vha, 0x5006,
433 "ISP Request Transfer Error (%x).\n", mb[1]);
1da177e4 434
e315cd28 435 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 436 break;
437
438 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
7c3df132
SK		 439 ql_log(ql_log_warn, vha, 0x5007,
440 "ISP Response Transfer Error.\n");
1da177e4 441
e315cd28 442 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 443 break;
444
445 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
7c3df132
SK		 446 ql_dbg(ql_dbg_async, vha, 0x5008,
447 "Asynchronous WAKEUP_THRES.\n");
1da177e4
LT		 448 break;
449
450 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
cfb0919c 451 ql_dbg(ql_dbg_async, vha, 0x5009,
7c3df132 452 "LIP occurred (%x).\n", mb[1]);
1da177e4 453
e315cd28
AC		 454 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
455 atomic_set(&vha->loop_state, LOOP_DOWN);
456 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
457 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 458 }
459
e315cd28
AC		 460 if (vha->vp_idx) {
461 atomic_set(&vha->vp_state, VP_FAILED);
462 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 463 }
464
e315cd28
AC		 465 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
466 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1da177e4 467
e315cd28
AC		 468 vha->flags.management_server_logged_in = 0;
469 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1da177e4
LT		 470 break;
471
472 case MBA_LOOP_UP: /* Loop Up Event */
1da177e4
LT		 473 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
474 link_speed = link_speeds[0];
d8b45213 475 ha->link_data_rate = PORT_SPEED_1GB;
1da177e4 476 } else {
9a853f71 477 link_speed = link_speeds[LS_UNKNOWN];
1da177e4
LT		 478 if (mb[1] < 5)
479 link_speed = link_speeds[mb[1]];
3a03eb79
AV		 480 else if (mb[1] == 0x13)
481 link_speed = link_speeds[5];
1da177e4
LT		 482 ha->link_data_rate = mb[1];
483 }
484
cfb0919c 485 ql_dbg(ql_dbg_async, vha, 0x500a,
7c3df132 486 "LOOP UP detected (%s Gbps).\n", link_speed);
1da177e4 487
e315cd28
AC		 488 vha->flags.management_server_logged_in = 0;
489 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1da177e4
LT		 490 break;
491
492 case MBA_LOOP_DOWN: /* Loop Down Event */
bdab23da 493 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox4) : 0;
bc5c2aad 494 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
cfb0919c 495 ql_dbg(ql_dbg_async, vha, 0x500b,
7c3df132
SK		 496 "LOOP DOWN detected (%x %x %x %x).\n",
497 mb[1], mb[2], mb[3], mbx);
1da177e4 498
e315cd28
AC		 499 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
500 atomic_set(&vha->loop_state, LOOP_DOWN);
501 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
502 vha->device_flags |= DFLG_NO_CABLE;
503 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 504 }
505
e315cd28
AC		 506 if (vha->vp_idx) {
507 atomic_set(&vha->vp_state, VP_FAILED);
508 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 509 }
510
e315cd28 511 vha->flags.management_server_logged_in = 0;
d8b45213 512 ha->link_data_rate = PORT_SPEED_UNKNOWN;
e315cd28 513 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1da177e4
LT		 514 break;
515
516 case MBA_LIP_RESET: /* LIP reset occurred */
cfb0919c 517 ql_dbg(ql_dbg_async, vha, 0x500c,
cc3ef7bc 518 "LIP reset occurred (%x).\n", mb[1]);
1da177e4 519
e315cd28
AC		 520 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
521 atomic_set(&vha->loop_state, LOOP_DOWN);
522 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
523 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 524 }
525
e315cd28
AC		 526 if (vha->vp_idx) {
527 atomic_set(&vha->vp_state, VP_FAILED);
528 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 529 }
530
e315cd28 531 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 532
533 ha->operating_mode = LOOP;
e315cd28
AC		 534 vha->flags.management_server_logged_in = 0;
535 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1da177e4
LT		 536 break;
537
3a03eb79 538 /* case MBA_DCBX_COMPLETE: */
1da177e4
LT		 539 case MBA_POINT_TO_POINT: /* Point-to-Point */
540 if (IS_QLA2100(ha))
541 break;
542
23f2ebd1 543 if (IS_QLA8XXX_TYPE(ha)) {
7c3df132
SK		 544 ql_dbg(ql_dbg_async, vha, 0x500d,
545 "DCBX Completed -- %04x %04x %04x.\n",
546 mb[1], mb[2], mb[3]);
23f2ebd1
SR		 547 if (ha->notify_dcbx_comp)
548 complete(&ha->dcbx_comp);
549
550 } else
7c3df132
SK		 551 ql_dbg(ql_dbg_async, vha, 0x500e,
552 "Asynchronous P2P MODE received.\n");
1da177e4
LT		 553
554 /*
555 * Until there's a transition from loop down to loop up, treat
556 * this as loop down only.
557 */
e315cd28
AC		 558 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
559 atomic_set(&vha->loop_state, LOOP_DOWN);
560 if (!atomic_read(&vha->loop_down_timer))
561 atomic_set(&vha->loop_down_timer,
1da177e4 562 LOOP_DOWN_TIME);
e315cd28 563 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 564 }
565
e315cd28
AC		 566 if (vha->vp_idx) {
567 atomic_set(&vha->vp_state, VP_FAILED);
568 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 569 }
570
e315cd28
AC		 571 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
572 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
573
574 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
575 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
4346b149
AV		 576
577 ha->flags.gpsc_supported = 1;
e315cd28 578 vha->flags.management_server_logged_in = 0;
1da177e4
LT		 579 break;
580
581 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
582 if (IS_QLA2100(ha))
583 break;
584
cfb0919c 585 ql_dbg(ql_dbg_async, vha, 0x500f,
1da177e4
LT		 586 "Configuration change detected: value=%x.\n", mb[1]);
587
e315cd28
AC		 588 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
589 atomic_set(&vha->loop_state, LOOP_DOWN);
590 if (!atomic_read(&vha->loop_down_timer))
591 atomic_set(&vha->loop_down_timer,
1da177e4 592 LOOP_DOWN_TIME);
e315cd28 593 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 594 }
595
e315cd28
AC		 596 if (vha->vp_idx) {
597 atomic_set(&vha->vp_state, VP_FAILED);
598 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 599 }
600
e315cd28
AC		 601 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
602 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 603 break;
604
605 case MBA_PORT_UPDATE: /* Port database update */
55903b9d
SV		 606 /*
607 * Handle only global and vn-port update events
608 *
609 * Relevant inputs:
610 * mb[1] = N_Port handle of changed port
611 * OR 0xffff for global event
612 * mb[2] = New login state
613 * 7 = Port logged out
614 * mb[3] = LSB is vp_idx, 0xff = all vps
615 *
616 * Skip processing if:
617 * Event is global, vp_idx is NOT all vps,
618 * vp_idx does not match
619 * Event is not global, vp_idx does not match
620 */
12cec63e
AV		 621 if (IS_QLA2XXX_MIDTYPE(ha) &&
622 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
623 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
624 break;
73208dfd 625
9764ff88
AV		 626 /* Global event -- port logout or port unavailable. */
627 if (mb[1] == 0xffff && mb[2] == 0x7) {
7c3df132
SK		 628 ql_dbg(ql_dbg_async, vha, 0x5010,
629 "Port unavailable %04x %04x %04x.\n",
630 mb[1], mb[2], mb[3]);
9764ff88
AV		 631
632 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
633 atomic_set(&vha->loop_state, LOOP_DOWN);
634 atomic_set(&vha->loop_down_timer,
635 LOOP_DOWN_TIME);
636 vha->device_flags |= DFLG_NO_CABLE;
637 qla2x00_mark_all_devices_lost(vha, 1);
638 }
639
640 if (vha->vp_idx) {
641 atomic_set(&vha->vp_state, VP_FAILED);
642 fc_vport_set_state(vha->fc_vport,
643 FC_VPORT_FAILED);
faadc5e7 644 qla2x00_mark_all_devices_lost(vha, 1);
9764ff88
AV		 645 }
646
647 vha->flags.management_server_logged_in = 0;
648 ha->link_data_rate = PORT_SPEED_UNKNOWN;
649 break;
650 }
651
1da177e4 652 /*
cc3ef7bc 653 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1da177e4
LT		 654 * event etc. earlier indicating loop is down) then process
655 * it. Otherwise ignore it and Wait for RSCN to come in.
656 */
e315cd28
AC		 657 atomic_set(&vha->loop_down_timer, 0);
658 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
659 atomic_read(&vha->loop_state) != LOOP_DEAD) {
7c3df132
SK		 660 ql_dbg(ql_dbg_async, vha, 0x5011,
661 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
662 mb[1], mb[2], mb[3]);
1da177e4
LT		 663 break;
664 }
665
7c3df132
SK		 666 ql_dbg(ql_dbg_async, vha, 0x5012,
667 "Port database changed %04x %04x %04x.\n",
668 mb[1], mb[2], mb[3]);
1da177e4
LT		 669
670 /*
671 * Mark all devices as missing so we will login again.
672 */
e315cd28 673 atomic_set(&vha->loop_state, LOOP_UP);
1da177e4 674
e315cd28 675 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4 676
e315cd28 677 vha->flags.rscn_queue_overflow = 1;
1da177e4 678
e315cd28
AC		 679 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
680 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 681 break;
682
683 case MBA_RSCN_UPDATE: /* State Change Registration */
3c397400 684 /* Check if the Vport has issued a SCR */
e315cd28 685 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
3c397400
SJ		 686 break;
687 /* Only handle SCNs for our Vport index. */
0d6e61bc 688 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
3c397400 689 break;
0d6e61bc 690
7c3df132
SK		 691 ql_dbg(ql_dbg_async, vha, 0x5013,
692 "RSCN database changed -- %04x %04x %04x.\n",
693 mb[1], mb[2], mb[3]);
1da177e4 694
59d72d87 695 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
e315cd28
AC		 696 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
697 | vha->d_id.b.al_pa;
1da177e4 698 if (rscn_entry == host_pid) {
7c3df132
SK		 699 ql_dbg(ql_dbg_async, vha, 0x5014,
700 "Ignoring RSCN update to local host "
701 "port ID (%06x).\n", host_pid);
1da177e4
LT		 702 break;
703 }
704
59d72d87
RA		 705 /* Ignore reserved bits from RSCN-payload. */
706 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
e315cd28 707 rscn_queue_index = vha->rscn_in_ptr + 1;
1da177e4
LT		 708 if (rscn_queue_index == MAX_RSCN_COUNT)
709 rscn_queue_index = 0;
e315cd28
AC		 710 if (rscn_queue_index != vha->rscn_out_ptr) {
711 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
712 vha->rscn_in_ptr = rscn_queue_index;
1da177e4 713 } else {
e315cd28 714 vha->flags.rscn_queue_overflow = 1;
1da177e4
LT		 715 }
716
e315cd28
AC		 717 atomic_set(&vha->loop_down_timer, 0);
718 vha->flags.management_server_logged_in = 0;
1da177e4 719
e315cd28
AC		 720 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
721 set_bit(RSCN_UPDATE, &vha->dpc_flags);
722 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1da177e4
LT		 723 break;
724
725 /* case MBA_RIO_RESPONSE: */
726 case MBA_ZIO_RESPONSE:
7c3df132
SK		 727 ql_dbg(ql_dbg_async, vha, 0x5015,
728 "[R|Z]IO update completion.\n");
1da177e4 729
e428924c 730 if (IS_FWI2_CAPABLE(ha))
2afa19a9 731 qla24xx_process_response_queue(vha, rsp);
4fdfefe5 732 else
73208dfd 733 qla2x00_process_response_queue(rsp);
1da177e4 734 break;
9a853f71
AV		 735
736 case MBA_DISCARD_RND_FRAME:
7c3df132
SK		 737 ql_dbg(ql_dbg_async, vha, 0x5016,
738 "Discard RND Frame -- %04x %04x %04x.\n",
739 mb[1], mb[2], mb[3]);
9a853f71 740 break;
45ebeb56
AV		 741
742 case MBA_TRACE_NOTIFICATION:
7c3df132
SK		 743 ql_dbg(ql_dbg_async, vha, 0x5017,
744 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
45ebeb56 745 break;
4d4df193
HK		 746
747 case MBA_ISP84XX_ALERT:
7c3df132
SK		 748 ql_dbg(ql_dbg_async, vha, 0x5018,
749 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
750 mb[1], mb[2], mb[3]);
4d4df193
HK		 751
752 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
753 switch (mb[1]) {
754 case A84_PANIC_RECOVERY:
7c3df132
SK		 755 ql_log(ql_log_info, vha, 0x5019,
756 "Alert 84XX: panic recovery %04x %04x.\n",
757 mb[2], mb[3]);
4d4df193
HK		 758 break;
759 case A84_OP_LOGIN_COMPLETE:
760 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
7c3df132
SK		 761 ql_log(ql_log_info, vha, 0x501a,
762 "Alert 84XX: firmware version %x.\n",
763 ha->cs84xx->op_fw_version);
4d4df193
HK		 764 break;
765 case A84_DIAG_LOGIN_COMPLETE:
766 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
7c3df132
SK		 767 ql_log(ql_log_info, vha, 0x501b,
768 "Alert 84XX: diagnostic firmware version %x.\n",
769 ha->cs84xx->diag_fw_version);
4d4df193
HK		 770 break;
771 case A84_GOLD_LOGIN_COMPLETE:
772 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
773 ha->cs84xx->fw_update = 1;
7c3df132
SK		 774 ql_log(ql_log_info, vha, 0x501c,
775 "Alert 84XX: gold firmware version %x.\n",
776 ha->cs84xx->gold_fw_version);
4d4df193
HK		 777 break;
778 default:
7c3df132
SK		 779 ql_log(ql_log_warn, vha, 0x501d,
780 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
4d4df193
HK		 781 mb[1], mb[2], mb[3]);
782 }
783 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
784 break;
3a03eb79 785 case MBA_DCBX_START:
7c3df132
SK		 786 ql_dbg(ql_dbg_async, vha, 0x501e,
787 "DCBX Started -- %04x %04x %04x.\n",
788 mb[1], mb[2], mb[3]);
3a03eb79
AV		 789 break;
790 case MBA_DCBX_PARAM_UPDATE:
7c3df132
SK		 791 ql_dbg(ql_dbg_async, vha, 0x501f,
792 "DCBX Parameters Updated -- %04x %04x %04x.\n",
793 mb[1], mb[2], mb[3]);
3a03eb79
AV		 794 break;
795 case MBA_FCF_CONF_ERR:
7c3df132
SK		 796 ql_dbg(ql_dbg_async, vha, 0x5020,
797 "FCF Configuration Error -- %04x %04x %04x.\n",
798 mb[1], mb[2], mb[3]);
3a03eb79
AV		 799 break;
800 case MBA_IDC_COMPLETE:
3a03eb79 801 case MBA_IDC_NOTIFY:
3a03eb79 802 case MBA_IDC_TIME_EXT:
8a659571 803 qla81xx_idc_event(vha, mb[0], mb[1]);
3a03eb79 804 break;
1da177e4 805 }
2c3dfe3f 806
e315cd28 807 if (!vha->vp_idx && ha->num_vhosts)
73208dfd 808 qla2x00_alert_all_vps(rsp, mb);
1da177e4
LT		 809}
810
811/**
812 * qla2x00_process_completed_request() - Process a Fast Post response.
813 * @ha: SCSI driver HA context
814 * @index: SRB index
815 */
816static void
73208dfd
AC		 817qla2x00_process_completed_request(struct scsi_qla_host *vha,
818 struct req_que *req, uint32_t index)
1da177e4
LT		 819{
820 srb_t *sp;
e315cd28 821 struct qla_hw_data *ha = vha->hw;
1da177e4
LT		 822
823 /* Validate handle. */
824 if (index >= MAX_OUTSTANDING_COMMANDS) {
7c3df132
SK		 825 ql_log(ql_log_warn, vha, 0x3014,
826 "Invalid SCSI command index (%x).\n", index);
1da177e4 827
8f7daead
GM		 828 if (IS_QLA82XX(ha))
829 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
830 else
831 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 832 return;
833 }
834
e315cd28 835 sp = req->outstanding_cmds[index];
1da177e4
LT		 836 if (sp) {
837 /* Free outstanding command slot. */
e315cd28 838 req->outstanding_cmds[index] = NULL;
1da177e4 839
1da177e4
LT		 840 /* Save ISP completion status */
841 sp->cmd->result = DID_OK << 16;
73208dfd 842 qla2x00_sp_compl(ha, sp);
1da177e4 843 } else {
7c3df132 844 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1da177e4 845
8f7daead
GM		 846 if (IS_QLA82XX(ha))
847 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
848 else
849 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 850 }
851}
852
ac280b67
AV		 853static srb_t *
854qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
855 struct req_que *req, void *iocb)
856{
857 struct qla_hw_data *ha = vha->hw;
858 sts_entry_t *pkt = iocb;
859 srb_t *sp = NULL;
860 uint16_t index;
861
862 index = LSW(pkt->handle);
863 if (index >= MAX_OUTSTANDING_COMMANDS) {
7c3df132
SK		 864 ql_log(ql_log_warn, vha, 0x5031,
865 "Invalid command index (%x).\n", index);
8f7daead
GM		 866 if (IS_QLA82XX(ha))
867 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
868 else
869 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
ac280b67
AV		 870 goto done;
871 }
872 sp = req->outstanding_cmds[index];
873 if (!sp) {
7c3df132
SK		 874 ql_log(ql_log_warn, vha, 0x5032,
875 "Invalid completion handle (%x) -- timed-out.\n", index);
ac280b67
AV		 876 return sp;
877 }
878 if (sp->handle != index) {
7c3df132
SK		 879 ql_log(ql_log_warn, vha, 0x5033,
880 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
ac280b67
AV		 881 return NULL;
882 }
9a069e19 883
ac280b67 884 req->outstanding_cmds[index] = NULL;
9a069e19 885
ac280b67
AV		 886done:
887 return sp;
888}
889
890static void
891qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
892 struct mbx_entry *mbx)
893{
894 const char func[] = "MBX-IOCB";
895 const char *type;
ac280b67
AV		 896 fc_port_t *fcport;
897 srb_t *sp;
4916392b
MI		 898 struct srb_iocb *lio;
899 struct srb_ctx *ctx;
99b0bec7 900 uint16_t *data;
5ff1d584 901 uint16_t status;
ac280b67
AV		 902
903 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
904 if (!sp)
905 return;
906
4916392b
MI		 907 ctx = sp->ctx;
908 lio = ctx->u.iocb_cmd;
909 type = ctx->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);
4916392b 933 if (status == 0x30 && ctx->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;
4916392b 944 if (ctx->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:
4916392b 975 lio->done(sp);
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;
984 struct qla_hw_data *ha = vha->hw;
985 srb_t *sp;
986 struct srb_ctx *sp_bsg;
987 struct fc_bsg_job *bsg_job;
988 uint16_t comp_status;
989
990 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
991 if (!sp)
992 return;
993
994 sp_bsg = sp->ctx;
995 bsg_job = sp_bsg->u.bsg_job;
996
997 type = NULL;
998 switch (sp_bsg->type) {
999 case SRB_CT_CMD:
1000 type = "ct pass-through";
1001 break;
1002 default:
7c3df132
SK		 1003 ql_log(ql_log_warn, vha, 0x5047,
1004 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
9bc4f4fb
HZ		 1005 return;
1006 }
1007
1008 comp_status = le16_to_cpu(pkt->comp_status);
1009
1010 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1011 * fc payload to the caller
1012 */
1013 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1014 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1015
1016 if (comp_status != CS_COMPLETE) {
1017 if (comp_status == CS_DATA_UNDERRUN) {
1018 bsg_job->reply->result = DID_OK << 16;
1019 bsg_job->reply->reply_payload_rcv_len =
1020 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1021
7c3df132
SK		 1022 ql_log(ql_log_warn, vha, 0x5048,
1023 "CT pass-through-%s error "
9bc4f4fb 1024 "comp_status-status=0x%x total_byte = 0x%x.\n",
7c3df132
SK		 1025 type, comp_status,
1026 bsg_job->reply->reply_payload_rcv_len);
9bc4f4fb 1027 } else {
7c3df132
SK		 1028 ql_log(ql_log_warn, vha, 0x5049,
1029 "CT pass-through-%s error "
1030 "comp_status-status=0x%x.\n", type, comp_status);
9bc4f4fb
HZ		 1031 bsg_job->reply->result = DID_ERROR << 16;
1032 bsg_job->reply->reply_payload_rcv_len = 0;
1033 }
cfb0919c 1034 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
7c3df132 1035 (uint8_t *)pkt, sizeof(*pkt));
9bc4f4fb 1036 } else {
6eab04a8 1037 bsg_job->reply->result = DID_OK << 16;
9bc4f4fb
HZ		 1038 bsg_job->reply->reply_payload_rcv_len =
1039 bsg_job->reply_payload.payload_len;
1040 bsg_job->reply_len = 0;
1041 }
1042
1043 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list,
1044 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1045
1046 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list,
1047 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
1048
1049 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD)
1050 kfree(sp->fcport);
1051
1052 kfree(sp->ctx);
1053 mempool_free(sp, ha->srb_mempool);
1054 bsg_job->job_done(bsg_job);
1055}
1056
9a069e19
GM		 1057static void
1058qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1059 struct sts_entry_24xx *pkt, int iocb_type)
1060{
1061 const char func[] = "ELS_CT_IOCB";
1062 const char *type;
1063 struct qla_hw_data *ha = vha->hw;
1064 srb_t *sp;
4916392b 1065 struct srb_ctx *sp_bsg;
9a069e19
GM		 1066 struct fc_bsg_job *bsg_job;
1067 uint16_t comp_status;
1068 uint32_t fw_status[3];
1069 uint8_t* fw_sts_ptr;
1070
1071 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1072 if (!sp)
1073 return;
4916392b
MI		 1074 sp_bsg = sp->ctx;
1075 bsg_job = sp_bsg->u.bsg_job;
9a069e19
GM		 1076
1077 type = NULL;
4916392b 1078 switch (sp_bsg->type) {
9a069e19
GM		 1079 case SRB_ELS_CMD_RPT:
1080 case SRB_ELS_CMD_HST:
1081 type = "els";
1082 break;
1083 case SRB_CT_CMD:
1084 type = "ct pass-through";
1085 break;
1086 default:
7c3df132
SK		 1087 ql_log(ql_log_warn, vha, 0x503e,
1088 "Unrecognized SRB: (%p) type=%d.\n", sp, sp_bsg->type);
9a069e19
GM		 1089 return;
1090 }
1091
1092 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1093 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1094 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1095
1096 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1097 * fc payload to the caller
1098 */
1099 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1100 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1101
1102 if (comp_status != CS_COMPLETE) {
1103 if (comp_status == CS_DATA_UNDERRUN) {
1104 bsg_job->reply->result = DID_OK << 16;
1105 bsg_job->reply->reply_payload_rcv_len =
1106 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
1107
7c3df132 1108 ql_log(ql_log_info, vha, 0x503f,
cfb0919c 1109 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
9a069e19 1110 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
cfb0919c 1111 type, sp->handle, comp_status, fw_status[1], fw_status[2],
7c3df132
SK		 1112 le16_to_cpu(((struct els_sts_entry_24xx *)
1113 pkt)->total_byte_count));
9a069e19
GM		 1114 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1115 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1116 }
1117 else {
7c3df132 1118 ql_log(ql_log_info, vha, 0x5040,
cfb0919c 1119 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
9a069e19 1120 "error subcode 1=0x%x error subcode 2=0x%x.\n",
cfb0919c 1121 type, sp->handle, comp_status,
7c3df132
SK		 1122 le16_to_cpu(((struct els_sts_entry_24xx *)
1123 pkt)->error_subcode_1),
1124 le16_to_cpu(((struct els_sts_entry_24xx *)
1125 pkt)->error_subcode_2));
9a069e19
GM		 1126 bsg_job->reply->result = DID_ERROR << 16;
1127 bsg_job->reply->reply_payload_rcv_len = 0;
1128 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1129 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1130 }
7c3df132
SK		 1131 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5056,
1132 (uint8_t *)pkt, sizeof(*pkt));
9a069e19
GM		 1133 }
1134 else {
6eab04a8 1135 bsg_job->reply->result = DID_OK << 16;
9a069e19
GM		 1136 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1137 bsg_job->reply_len = 0;
1138 }
1139
1140 dma_unmap_sg(&ha->pdev->dev,
1141 bsg_job->request_payload.sg_list,
1142 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE);
1143 dma_unmap_sg(&ha->pdev->dev,
1144 bsg_job->reply_payload.sg_list,
1145 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE);
4916392b
MI		 1146 if ((sp_bsg->type == SRB_ELS_CMD_HST) ||
1147 (sp_bsg->type == SRB_CT_CMD))
9a069e19
GM		 1148 kfree(sp->fcport);
1149 kfree(sp->ctx);
1150 mempool_free(sp, ha->srb_mempool);
1151 bsg_job->job_done(bsg_job);
1152}
1153
ac280b67
AV		 1154static void
1155qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1156 struct logio_entry_24xx *logio)
1157{
1158 const char func[] = "LOGIO-IOCB";
1159 const char *type;
ac280b67
AV		 1160 fc_port_t *fcport;
1161 srb_t *sp;
4916392b
MI		 1162 struct srb_iocb *lio;
1163 struct srb_ctx *ctx;
99b0bec7 1164 uint16_t *data;
ac280b67
AV		 1165 uint32_t iop[2];
1166
1167 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1168 if (!sp)
1169 return;
1170
4916392b
MI		 1171 ctx = sp->ctx;
1172 lio = ctx->u.iocb_cmd;
1173 type = ctx->name;
ac280b67 1174 fcport = sp->fcport;
4916392b 1175 data = lio->u.logio.data;
ac280b67 1176
5ff1d584 1177 data[0] = MBS_COMMAND_ERROR;
4916392b 1178 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
5ff1d584 1179 QLA_LOGIO_LOGIN_RETRIED : 0;
ac280b67 1180 if (logio->entry_status) {
7c3df132 1181 ql_log(ql_log_warn, vha, 0x5034,
cfb0919c 1182 "Async-%s error entry - hdl=%x"
d3fa9e7d 1183 "portid=%02x%02x%02x entry-status=%x.\n",
cfb0919c
CD		 1184 type, sp->handle, fcport->d_id.b.domain,
1185 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1186 logio->entry_status);
1187 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
7c3df132 1188 (uint8_t *)logio, sizeof(*logio));
ac280b67 1189
99b0bec7 1190 goto logio_done;
ac280b67
AV		 1191 }
1192
1193 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
7c3df132 1194 ql_dbg(ql_dbg_async, vha, 0x5036,
cfb0919c
CD		 1195 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1196 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1197 fcport->d_id.b.area, fcport->d_id.b.al_pa,
7c3df132 1198 le32_to_cpu(logio->io_parameter[0]));
ac280b67
AV		 1199
1200 data[0] = MBS_COMMAND_COMPLETE;
4916392b 1201 if (ctx->type != SRB_LOGIN_CMD)
99b0bec7 1202 goto logio_done;
ac280b67
AV		 1203
1204 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1205 if (iop[0] & BIT_4) {
1206 fcport->port_type = FCT_TARGET;
1207 if (iop[0] & BIT_8)
8474f3a0 1208 fcport->flags |= FCF_FCP2_DEVICE;
b0cd579c 1209 } else if (iop[0] & BIT_5)
ac280b67 1210 fcport->port_type = FCT_INITIATOR;
b0cd579c 1211
ac280b67
AV		 1212 if (logio->io_parameter[7] || logio->io_parameter[8])
1213 fcport->supported_classes |= FC_COS_CLASS2;
1214 if (logio->io_parameter[9] || logio->io_parameter[10])
1215 fcport->supported_classes |= FC_COS_CLASS3;
1216
99b0bec7 1217 goto logio_done;
ac280b67
AV		 1218 }
1219
1220 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1221 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1222 switch (iop[0]) {
1223 case LSC_SCODE_PORTID_USED:
1224 data[0] = MBS_PORT_ID_USED;
1225 data[1] = LSW(iop[1]);
1226 break;
1227 case LSC_SCODE_NPORT_USED:
1228 data[0] = MBS_LOOP_ID_USED;
1229 break;
ac280b67
AV		 1230 default:
1231 data[0] = MBS_COMMAND_ERROR;
ac280b67
AV		 1232 break;
1233 }
1234
7c3df132 1235 ql_dbg(ql_dbg_async, vha, 0x5037,
cfb0919c
CD		 1236 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1237 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
d3fa9e7d 1238 fcport->d_id.b.area, fcport->d_id.b.al_pa,
ac280b67
AV		 1239 le16_to_cpu(logio->comp_status),
1240 le32_to_cpu(logio->io_parameter[0]),
7c3df132 1241 le32_to_cpu(logio->io_parameter[1]));
ac280b67 1242
99b0bec7 1243logio_done:
4916392b 1244 lio->done(sp);
ac280b67
AV		 1245}
1246
3822263e
MI		 1247static void
1248qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1249 struct tsk_mgmt_entry *tsk)
1250{
1251 const char func[] = "TMF-IOCB";
1252 const char *type;
1253 fc_port_t *fcport;
1254 srb_t *sp;
1255 struct srb_iocb *iocb;
1256 struct srb_ctx *ctx;
1257 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1258 int error = 1;
1259
1260 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1261 if (!sp)
1262 return;
1263
1264 ctx = sp->ctx;
1265 iocb = ctx->u.iocb_cmd;
1266 type = ctx->name;
1267 fcport = sp->fcport;
1268
1269 if (sts->entry_status) {
7c3df132 1270 ql_log(ql_log_warn, vha, 0x5038,
cfb0919c
CD		 1271 "Async-%s error - hdl=%x entry-status(%x).\n",
1272 type, sp->handle, sts->entry_status);
3822263e 1273 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
7c3df132 1274 ql_log(ql_log_warn, vha, 0x5039,
cfb0919c
CD		 1275 "Async-%s error - hdl=%x completion status(%x).\n",
1276 type, sp->handle, sts->comp_status);
3822263e
MI		 1277 } else if (!(le16_to_cpu(sts->scsi_status) &
1278 SS_RESPONSE_INFO_LEN_VALID)) {
7c3df132 1279 ql_log(ql_log_warn, vha, 0x503a,
cfb0919c
CD		 1280 "Async-%s error - hdl=%x no response info(%x).\n",
1281 type, sp->handle, sts->scsi_status);
3822263e 1282 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
7c3df132 1283 ql_log(ql_log_warn, vha, 0x503b,
cfb0919c
CD		 1284 "Async-%s error - hdl=%x not enough response(%d).\n",
1285 type, sp->handle, sts->rsp_data_len);
3822263e 1286 } else if (sts->data[3]) {
7c3df132 1287 ql_log(ql_log_warn, vha, 0x503c,
cfb0919c
CD		 1288 "Async-%s error - hdl=%x response(%x).\n",
1289 type, sp->handle, sts->data[3]);
3822263e
MI		 1290 } else {
1291 error = 0;
1292 }
1293
1294 if (error) {
1295 iocb->u.tmf.data = error;
7c3df132
SK		 1296 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1297 (uint8_t *)sts, sizeof(*sts));
3822263e
MI		 1298 }
1299
1300 iocb->done(sp);
1301}
1302
1da177e4
LT		 1303/**
1304 * qla2x00_process_response_queue() - Process response queue entries.
1305 * @ha: SCSI driver HA context
1306 */
1307void
73208dfd 1308qla2x00_process_response_queue(struct rsp_que *rsp)
1da177e4 1309{
73208dfd
AC		 1310 struct scsi_qla_host *vha;
1311 struct qla_hw_data *ha = rsp->hw;
3d71644c 1312 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 1313 sts_entry_t *pkt;
1314 uint16_t handle_cnt;
1315 uint16_t cnt;
73208dfd 1316
2afa19a9 1317 vha = pci_get_drvdata(ha->pdev);
1da177e4 1318
e315cd28 1319 if (!vha->flags.online)
1da177e4
LT		 1320 return;
1321
e315cd28
AC		 1322 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1323 pkt = (sts_entry_t *)rsp->ring_ptr;
1da177e4 1324
e315cd28
AC		 1325 rsp->ring_index++;
1326 if (rsp->ring_index == rsp->length) {
1327 rsp->ring_index = 0;
1328 rsp->ring_ptr = rsp->ring;
1da177e4 1329 } else {
e315cd28 1330 rsp->ring_ptr++;
1da177e4
LT		 1331 }
1332
1333 if (pkt->entry_status != 0) {
73208dfd 1334 qla2x00_error_entry(vha, rsp, pkt);
1da177e4
LT		 1335 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1336 wmb();
1337 continue;
1338 }
1339
1340 switch (pkt->entry_type) {
1341 case STATUS_TYPE:
73208dfd 1342 qla2x00_status_entry(vha, rsp, pkt);
1da177e4
LT		 1343 break;
1344 case STATUS_TYPE_21:
1345 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1346 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 1347 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 1348 ((sts21_entry_t *)pkt)->handle[cnt]);
1349 }
1350 break;
1351 case STATUS_TYPE_22:
1352 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1353 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 1354 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 1355 ((sts22_entry_t *)pkt)->handle[cnt]);
1356 }
1357 break;
1358 case STATUS_CONT_TYPE:
2afa19a9 1359 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1da177e4 1360 break;
ac280b67
AV		 1361 case MBX_IOCB_TYPE:
1362 qla2x00_mbx_iocb_entry(vha, rsp->req,
1363 (struct mbx_entry *)pkt);
3822263e 1364 break;
9bc4f4fb
HZ		 1365 case CT_IOCB_TYPE:
1366 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1367 break;
1da177e4
LT		 1368 default:
1369 /* Type Not Supported. */
7c3df132
SK		 1370 ql_log(ql_log_warn, vha, 0x504a,
1371 "Received unknown response pkt type %x "
1da177e4 1372 "entry status=%x.\n",
7c3df132 1373 pkt->entry_type, pkt->entry_status);
1da177e4
LT		 1374 break;
1375 }
1376 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1377 wmb();
1378 }
1379
1380 /* Adjust ring index */
e315cd28 1381 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1da177e4
LT		 1382}
1383
4733fcb1 1384static inline void
5544213b
AV		 1385qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1386 uint32_t sense_len, struct rsp_que *rsp)
4733fcb1 1387{
7c3df132 1388 struct scsi_qla_host *vha = sp->fcport->vha;
4733fcb1
AV		 1389 struct scsi_cmnd *cp = sp->cmd;
1390
1391 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1392 sense_len = SCSI_SENSE_BUFFERSIZE;
1393
4733fcb1
AV		 1394 sp->request_sense_length = sense_len;
1395 sp->request_sense_ptr = cp->sense_buffer;
5544213b
AV		 1396 if (sp->request_sense_length > par_sense_len)
1397 sense_len = par_sense_len;
4733fcb1
AV		 1398
1399 memcpy(cp->sense_buffer, sense_data, sense_len);
1400
1401 sp->request_sense_ptr += sense_len;
1402 sp->request_sense_length -= sense_len;
1403 if (sp->request_sense_length != 0)
2afa19a9 1404 rsp->status_srb = sp;
4733fcb1 1405
cfb0919c
CD		 1406 if (sense_len) {
1407 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1408 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1409 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1410 cp);
7c3df132
SK		 1411 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1412 cp->sense_buffer, sense_len);
cfb0919c 1413 }
4733fcb1
AV		 1414}
1415
bad75002
AE		 1416struct scsi_dif_tuple {
1417 __be16 guard; /* Checksum */
1418 __be16 app_tag; /* APPL identifer */
1419 __be32 ref_tag; /* Target LBA or indirect LBA */
1420};
1421
1422/*
1423 * Checks the guard or meta-data for the type of error
1424 * detected by the HBA. In case of errors, we set the
1425 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1426 * to indicate to the kernel that the HBA detected error.
1427 */
8cb2049c 1428static inline int
bad75002
AE		 1429qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1430{
7c3df132 1431 struct scsi_qla_host *vha = sp->fcport->vha;
bad75002 1432 struct scsi_cmnd *cmd = sp->cmd;
8cb2049c
AE		 1433 uint8_t *ap = &sts24->data[12];
1434 uint8_t *ep = &sts24->data[20];
bad75002
AE		 1435 uint32_t e_ref_tag, a_ref_tag;
1436 uint16_t e_app_tag, a_app_tag;
1437 uint16_t e_guard, a_guard;
1438
8cb2049c
AE		 1439 /*
1440 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1441 * would make guard field appear at offset 2
1442 */
1443 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1444 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1445 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1446 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1447 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1448 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
bad75002 1449
7c3df132
SK		 1450 ql_dbg(ql_dbg_io, vha, 0x3023,
1451 "iocb(s) %p Returned STATUS.\n", sts24);
bad75002 1452
7c3df132
SK		 1453 ql_dbg(ql_dbg_io, vha, 0x3024,
1454 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
bad75002 1455 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
7c3df132 1456 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
bad75002 1457 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
7c3df132 1458 a_app_tag, e_app_tag, a_guard, e_guard);
bad75002 1459
8cb2049c
AE		 1460 /*
1461 * Ignore sector if:
1462 * For type 3: ref & app tag is all 'f's
1463 * For type 0,1,2: app tag is all 'f's
1464 */
1465 if ((a_app_tag == 0xffff) &&
1466 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1467 (a_ref_tag == 0xffffffff))) {
1468 uint32_t blocks_done, resid;
1469 sector_t lba_s = scsi_get_lba(cmd);
1470
1471 /* 2TB boundary case covered automatically with this */
1472 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1473
1474 resid = scsi_bufflen(cmd) - (blocks_done *
1475 cmd->device->sector_size);
1476
1477 scsi_set_resid(cmd, resid);
1478 cmd->result = DID_OK << 16;
1479
1480 /* Update protection tag */
1481 if (scsi_prot_sg_count(cmd)) {
1482 uint32_t i, j = 0, k = 0, num_ent;
1483 struct scatterlist *sg;
1484 struct sd_dif_tuple *spt;
1485
1486 /* Patch the corresponding protection tags */
1487 scsi_for_each_prot_sg(cmd, sg,
1488 scsi_prot_sg_count(cmd), i) {
1489 num_ent = sg_dma_len(sg) / 8;
1490 if (k + num_ent < blocks_done) {
1491 k += num_ent;
1492 continue;
1493 }
1494 j = blocks_done - k - 1;
1495 k = blocks_done;
1496 break;
1497 }
1498
1499 if (k != blocks_done) {
cfb0919c 1500 ql_log(ql_log_warn, vha, 0x302f,
8ec9c7fb
RD		 1501 "unexpected tag values tag:lba=%x:%llx)\n",
1502 e_ref_tag, (unsigned long long)lba_s);
8cb2049c
AE		 1503 return 1;
1504 }
1505
1506 spt = page_address(sg_page(sg)) + sg->offset;
1507 spt += j;
1508
1509 spt->app_tag = 0xffff;
1510 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1511 spt->ref_tag = 0xffffffff;
1512 }
1513
1514 return 0;
1515 }
1516
bad75002
AE		 1517 /* check guard */
1518 if (e_guard != a_guard) {
1519 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1520 0x10, 0x1);
1521 set_driver_byte(cmd, DRIVER_SENSE);
1522 set_host_byte(cmd, DID_ABORT);
1523 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1524 return 1;
bad75002
AE		 1525 }
1526
e02587d7
AE		 1527 /* check ref tag */
1528 if (e_ref_tag != a_ref_tag) {
bad75002 1529 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
e02587d7 1530 0x10, 0x3);
bad75002
AE		 1531 set_driver_byte(cmd, DRIVER_SENSE);
1532 set_host_byte(cmd, DID_ABORT);
1533 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1534 return 1;
bad75002
AE		 1535 }
1536
e02587d7
AE		 1537 /* check appl tag */
1538 if (e_app_tag != a_app_tag) {
bad75002 1539 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
e02587d7 1540 0x10, 0x2);
bad75002
AE		 1541 set_driver_byte(cmd, DRIVER_SENSE);
1542 set_host_byte(cmd, DID_ABORT);
1543 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
8cb2049c 1544 return 1;
bad75002 1545 }
e02587d7 1546
8cb2049c 1547 return 1;
bad75002
AE		 1548}
1549
1da177e4
LT		 1550/**
1551 * qla2x00_status_entry() - Process a Status IOCB entry.
1552 * @ha: SCSI driver HA context
1553 * @pkt: Entry pointer
1554 */
1555static void
73208dfd 1556qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1da177e4 1557{
1da177e4 1558 srb_t *sp;
1da177e4
LT		 1559 fc_port_t *fcport;
1560 struct scsi_cmnd *cp;
9a853f71
AV		 1561 sts_entry_t *sts;
1562 struct sts_entry_24xx *sts24;
1da177e4
LT		 1563 uint16_t comp_status;
1564 uint16_t scsi_status;
b7d2280c 1565 uint16_t ox_id;
1da177e4
LT		 1566 uint8_t lscsi_status;
1567 int32_t resid;
5544213b
AV		 1568 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1569 fw_resid_len;
9a853f71 1570 uint8_t *rsp_info, *sense_data;
e315cd28 1571 struct qla_hw_data *ha = vha->hw;
2afa19a9
AC		 1572 uint32_t handle;
1573 uint16_t que;
1574 struct req_que *req;
b7d2280c 1575 int logit = 1;
9a853f71
AV		 1576
1577 sts = (sts_entry_t *) pkt;
1578 sts24 = (struct sts_entry_24xx *) pkt;
e428924c 1579 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 1580 comp_status = le16_to_cpu(sts24->comp_status);
1581 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1582 } else {
1583 comp_status = le16_to_cpu(sts->comp_status);
1584 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1585 }
2afa19a9
AC		 1586 handle = (uint32_t) LSW(sts->handle);
1587 que = MSW(sts->handle);
1588 req = ha->req_q_map[que];
a9083016 1589
1da177e4 1590 /* Fast path completion. */
9a853f71 1591 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2afa19a9 1592 qla2x00_process_completed_request(vha, req, handle);
1da177e4
LT		 1593
1594 return;
1595 }
1596
1597 /* Validate handle. */
2afa19a9
AC		 1598 if (handle < MAX_OUTSTANDING_COMMANDS) {
1599 sp = req->outstanding_cmds[handle];
1600 req->outstanding_cmds[handle] = NULL;
1da177e4
LT		 1601 } else
1602 sp = NULL;
1603
1604 if (sp == NULL) {
cfb0919c 1605 ql_dbg(ql_dbg_io, vha, 0x3017,
7c3df132 1606 "Invalid status handle (0x%x).\n", sts->handle);
1da177e4 1607
8f7daead
GM		 1608 if (IS_QLA82XX(ha))
1609 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1610 else
1611 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
e315cd28 1612 qla2xxx_wake_dpc(vha);
1da177e4
LT		 1613 return;
1614 }
1615 cp = sp->cmd;
1616 if (cp == NULL) {
cfb0919c 1617 ql_dbg(ql_dbg_io, vha, 0x3018,
7c3df132
SK		 1618 "Command already returned (0x%x/%p).\n",
1619 sts->handle, sp);
1da177e4
LT		 1620
1621 return;
1622 }
1623
9a853f71 1624 lscsi_status = scsi_status & STATUS_MASK;
1da177e4 1625
bdf79621 1626 fcport = sp->fcport;
1da177e4 1627
b7d2280c 1628 ox_id = 0;
5544213b
AV		 1629 sense_len = par_sense_len = rsp_info_len = resid_len =
1630 fw_resid_len = 0;
e428924c 1631 if (IS_FWI2_CAPABLE(ha)) {
0f00a206
LC		 1632 if (scsi_status & SS_SENSE_LEN_VALID)
1633 sense_len = le32_to_cpu(sts24->sense_len);
1634 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1635 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1636 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1637 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1638 if (comp_status == CS_DATA_UNDERRUN)
1639 fw_resid_len = le32_to_cpu(sts24->residual_len);
9a853f71
AV		 1640 rsp_info = sts24->data;
1641 sense_data = sts24->data;
1642 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
b7d2280c 1643 ox_id = le16_to_cpu(sts24->ox_id);
5544213b 1644 par_sense_len = sizeof(sts24->data);
9a853f71 1645 } else {
0f00a206
LC		 1646 if (scsi_status & SS_SENSE_LEN_VALID)
1647 sense_len = le16_to_cpu(sts->req_sense_length);
1648 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1649 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
9a853f71
AV		 1650 resid_len = le32_to_cpu(sts->residual_length);
1651 rsp_info = sts->rsp_info;
1652 sense_data = sts->req_sense_data;
5544213b 1653 par_sense_len = sizeof(sts->req_sense_data);
9a853f71
AV		 1654 }
1655
1da177e4
LT		 1656 /* Check for any FCP transport errors. */
1657 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
9a853f71 1658 /* Sense data lies beyond any FCP RESPONSE data. */
5544213b 1659 if (IS_FWI2_CAPABLE(ha)) {
9a853f71 1660 sense_data += rsp_info_len;
5544213b
AV		 1661 par_sense_len -= rsp_info_len;
1662 }
9a853f71 1663 if (rsp_info_len > 3 && rsp_info[3]) {
cfb0919c 1664 ql_dbg(ql_dbg_io, vha, 0x3019,
7c3df132
SK		 1665 "FCP I/O protocol failure (0x%x/0x%x).\n",
1666 rsp_info_len, rsp_info[3]);
1da177e4
LT		 1667
1668 cp->result = DID_BUS_BUSY << 16;
b7d2280c 1669 goto out;
1da177e4
LT		 1670 }
1671 }
1672
3e8ce320
AV		 1673 /* Check for overrun. */
1674 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1675 scsi_status & SS_RESIDUAL_OVER)
1676 comp_status = CS_DATA_OVERRUN;
1677
1da177e4
LT		 1678 /*
1679 * Based on Host and scsi status generate status code for Linux
1680 */
1681 switch (comp_status) {
1682 case CS_COMPLETE:
df7baa50 1683 case CS_QUEUE_FULL:
1da177e4
LT		 1684 if (scsi_status == 0) {
1685 cp->result = DID_OK << 16;
1686 break;
1687 }
1688 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
9a853f71 1689 resid = resid_len;
385d70b4 1690 scsi_set_resid(cp, resid);
0da69df1
AV		 1691
1692 if (!lscsi_status &&
385d70b4 1693 ((unsigned)(scsi_bufflen(cp) - resid) <
0da69df1 1694 cp->underflow)) {
cfb0919c 1695 ql_dbg(ql_dbg_io, vha, 0x301a,
7c3df132 1696 "Mid-layer underflow "
b7d2280c 1697 "detected (0x%x of 0x%x bytes).\n",
7c3df132 1698 resid, scsi_bufflen(cp));
0da69df1
AV		 1699
1700 cp->result = DID_ERROR << 16;
1701 break;
1702 }
1da177e4 1703 }
1da177e4
LT		 1704 cp->result = DID_OK << 16 | lscsi_status;
1705
df7baa50 1706 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
cfb0919c 1707 ql_dbg(ql_dbg_io, vha, 0x301b,
7c3df132 1708 "QUEUE FULL detected.\n");
df7baa50
AV		 1709 break;
1710 }
b7d2280c 1711 logit = 0;
1da177e4
LT		 1712 if (lscsi_status != SS_CHECK_CONDITION)
1713 break;
1714
b80ca4f7 1715 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1716 if (!(scsi_status & SS_SENSE_LEN_VALID))
1717 break;
1718
5544213b
AV		 1719 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
1720 rsp);
1da177e4
LT		 1721 break;
1722
1723 case CS_DATA_UNDERRUN:
ed17c71b 1724 /* Use F/W calculated residual length. */
0f00a206
LC		 1725 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
1726 scsi_set_resid(cp, resid);
1727 if (scsi_status & SS_RESIDUAL_UNDER) {
1728 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
cfb0919c 1729 ql_dbg(ql_dbg_io, vha, 0x301d,
7c3df132
SK		 1730 "Dropped frame(s) detected "
1731 "(0x%x of 0x%x bytes).\n",
1732 resid, scsi_bufflen(cp));
0f00a206
LC		 1733
1734 cp->result = DID_ERROR << 16 | lscsi_status;
4e85e3d9 1735 goto check_scsi_status;
6acf8190 1736 }
ed17c71b 1737
0f00a206
LC		 1738 if (!lscsi_status &&
1739 ((unsigned)(scsi_bufflen(cp) - resid) <
1740 cp->underflow)) {
cfb0919c 1741 ql_dbg(ql_dbg_io, vha, 0x301e,
7c3df132 1742 "Mid-layer underflow "
b7d2280c 1743 "detected (0x%x of 0x%x bytes).\n",
7c3df132 1744 resid, scsi_bufflen(cp));
e038a1be 1745
0f00a206
LC		 1746 cp->result = DID_ERROR << 16;
1747 break;
1748 }
0374f55e 1749 } else {
cfb0919c 1750 ql_dbg(ql_dbg_io, vha, 0x301f,
7c3df132
SK		 1751 "Dropped frame(s) detected (0x%x "
1752 "of 0x%x bytes).\n", resid, scsi_bufflen(cp));
0f00a206 1753
0374f55e
LC		 1754 cp->result = DID_ERROR << 16 | lscsi_status;
1755 goto check_scsi_status;
1da177e4
LT		 1756 }
1757
0f00a206 1758 cp->result = DID_OK << 16 | lscsi_status;
b7d2280c 1759 logit = 0;
0f00a206 1760
0374f55e 1761check_scsi_status:
1da177e4 1762 /*
fa2a1ce5 1763 * Check to see if SCSI Status is non zero. If so report SCSI
1da177e4
LT		 1764 * Status.
1765 */
1766 if (lscsi_status != 0) {
ffec28a3 1767 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
cfb0919c 1768 ql_dbg(ql_dbg_io, vha, 0x3020,
7c3df132 1769 "QUEUE FULL detected.\n");
b7d2280c 1770 logit = 1;
ffec28a3
AV		 1771 break;
1772 }
1da177e4
LT		 1773 if (lscsi_status != SS_CHECK_CONDITION)
1774 break;
1775
b80ca4f7 1776 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1777 if (!(scsi_status & SS_SENSE_LEN_VALID))
1778 break;
1779
5544213b
AV		 1780 qla2x00_handle_sense(sp, sense_data, par_sense_len,
1781 sense_len, rsp);
1da177e4
LT		 1782 }
1783 break;
1784
1da177e4
LT		 1785 case CS_PORT_LOGGED_OUT:
1786 case CS_PORT_CONFIG_CHG:
1787 case CS_PORT_BUSY:
1788 case CS_INCOMPLETE:
1789 case CS_PORT_UNAVAILABLE:
b7d2280c 1790 case CS_TIMEOUT:
ff454b01
CD		 1791 case CS_RESET:
1792
056a4483
MC		 1793 /*
1794 * We are going to have the fc class block the rport
1795 * while we try to recover so instruct the mid layer
1796 * to requeue until the class decides how to handle this.
1797 */
1798 cp->result = DID_TRANSPORT_DISRUPTED << 16;
b7d2280c
AV		 1799
1800 if (comp_status == CS_TIMEOUT) {
1801 if (IS_FWI2_CAPABLE(ha))
1802 break;
1803 else if ((le16_to_cpu(sts->status_flags) &
1804 SF_LOGOUT_SENT) == 0)
1805 break;
1806 }
1807
7c3df132
SK		 1808 ql_dbg(ql_dbg_io, vha, 0x3021,
1809 "Port down status: port-state=0x%x.\n",
1810 atomic_read(&fcport->state));
b7d2280c 1811
a7a28504 1812 if (atomic_read(&fcport->state) == FCS_ONLINE)
e315cd28 1813 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1da177e4
LT		 1814 break;
1815
1da177e4 1816 case CS_ABORTED:
1da177e4
LT		 1817 cp->result = DID_RESET << 16;
1818 break;
bad75002
AE		 1819
1820 case CS_DIF_ERROR:
8cb2049c 1821 logit = qla2x00_handle_dif_error(sp, sts24);
bad75002 1822 break;
1da177e4 1823 default:
1da177e4
LT		 1824 cp->result = DID_ERROR << 16;
1825 break;
1826 }
1827
b7d2280c
AV		 1828out:
1829 if (logit)
7c3df132
SK		 1830 ql_dbg(ql_dbg_io, vha, 0x3022,
1831 "FCP command status: 0x%x-0x%x (0x%x) "
cfb0919c
CD		 1832 "nexus=%ld:%d:%d portid=%02x%02x%02x oxid=0x%x "
1833 "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
7c3df132 1834 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
cfb0919c
CD		 1835 comp_status, scsi_status, cp->result, vha->host_no,
1836 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
1837 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
1838 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1839 cp->cmnd[4], cp->cmnd[5], cp->cmnd[6], cp->cmnd[7],
1840 cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
7c3df132 1841 resid_len, fw_resid_len);
b7d2280c 1842
2afa19a9 1843 if (rsp->status_srb == NULL)
73208dfd 1844 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1845}
1846
1847/**
1848 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1849 * @ha: SCSI driver HA context
1850 * @pkt: Entry pointer
1851 *
1852 * Extended sense data.
1853 */
1854static void
2afa19a9 1855qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
1da177e4
LT		 1856{
1857 uint8_t sense_sz = 0;
2afa19a9 1858 struct qla_hw_data *ha = rsp->hw;
7c3df132 1859 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2afa19a9 1860 srb_t *sp = rsp->status_srb;
1da177e4
LT		 1861 struct scsi_cmnd *cp;
1862
1863 if (sp != NULL && sp->request_sense_length != 0) {
1864 cp = sp->cmd;
1865 if (cp == NULL) {
7c3df132
SK		 1866 ql_log(ql_log_warn, vha, 0x3025,
1867 "cmd is NULL: already returned to OS (sp=%p).\n",
fa2a1ce5 1868 sp);
1da177e4 1869
2afa19a9 1870 rsp->status_srb = NULL;
1da177e4
LT		 1871 return;
1872 }
1873
1874 if (sp->request_sense_length > sizeof(pkt->data)) {
1875 sense_sz = sizeof(pkt->data);
1876 } else {
1877 sense_sz = sp->request_sense_length;
1878 }
1879
1880 /* Move sense data. */
e428924c 1881 if (IS_FWI2_CAPABLE(ha))
9a853f71 1882 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1da177e4 1883 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
7c3df132
SK		 1884 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
1885 sp->request_sense_ptr, sense_sz);
1da177e4
LT		 1886
1887 sp->request_sense_ptr += sense_sz;
1888 sp->request_sense_length -= sense_sz;
1889
1890 /* Place command on done queue. */
1891 if (sp->request_sense_length == 0) {
2afa19a9 1892 rsp->status_srb = NULL;
73208dfd 1893 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1894 }
1895 }
1896}
1897
1898/**
1899 * qla2x00_error_entry() - Process an error entry.
1900 * @ha: SCSI driver HA context
1901 * @pkt: Entry pointer
1902 */
1903static void
73208dfd 1904qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1da177e4
LT		 1905{
1906 srb_t *sp;
e315cd28 1907 struct qla_hw_data *ha = vha->hw;
2afa19a9
AC		 1908 uint32_t handle = LSW(pkt->handle);
1909 uint16_t que = MSW(pkt->handle);
1910 struct req_que *req = ha->req_q_map[que];
7c3df132 1911
1da177e4 1912 if (pkt->entry_status & RF_INV_E_ORDER)
7c3df132
SK		 1913 ql_dbg(ql_dbg_async, vha, 0x502a,
1914 "Invalid Entry Order.\n");
1da177e4 1915 else if (pkt->entry_status & RF_INV_E_COUNT)
7c3df132
SK		 1916 ql_dbg(ql_dbg_async, vha, 0x502b,
1917 "Invalid Entry Count.\n");
1da177e4 1918 else if (pkt->entry_status & RF_INV_E_PARAM)
7c3df132
SK		 1919 ql_dbg(ql_dbg_async, vha, 0x502c,
1920 "Invalid Entry Parameter.\n");
1da177e4 1921 else if (pkt->entry_status & RF_INV_E_TYPE)
7c3df132
SK		 1922 ql_dbg(ql_dbg_async, vha, 0x502d,
1923 "Invalid Entry Type.\n");
1da177e4 1924 else if (pkt->entry_status & RF_BUSY)
7c3df132
SK		 1925 ql_dbg(ql_dbg_async, vha, 0x502e,
1926 "Busy.\n");
1da177e4 1927 else
7c3df132
SK		 1928 ql_dbg(ql_dbg_async, vha, 0x502f,
1929 "UNKNOWN flag error.\n");
1da177e4
LT		 1930
1931 /* Validate handle. */
2afa19a9
AC		 1932 if (handle < MAX_OUTSTANDING_COMMANDS)
1933 sp = req->outstanding_cmds[handle];
1da177e4
LT		 1934 else
1935 sp = NULL;
1936
1937 if (sp) {
1938 /* Free outstanding command slot. */
2afa19a9 1939 req->outstanding_cmds[handle] = NULL;
354d6b21 1940
1da177e4
LT		 1941 /* Bad payload or header */
1942 if (pkt->entry_status &
1943 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1944 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1945 sp->cmd->result = DID_ERROR << 16;
1946 } else if (pkt->entry_status & RF_BUSY) {
1947 sp->cmd->result = DID_BUS_BUSY << 16;
1948 } else {
1949 sp->cmd->result = DID_ERROR << 16;
1950 }
73208dfd 1951 qla2x00_sp_compl(ha, sp);
1da177e4 1952
9a853f71 1953 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
8f7daead
GM		 1954 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
1955 || pkt->entry_type == COMMAND_TYPE_6) {
7c3df132
SK		 1956 ql_log(ql_log_warn, vha, 0x5030,
1957 "Error entry - invalid handle.\n");
1da177e4 1958
8f7daead
GM		 1959 if (IS_QLA82XX(ha))
1960 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1961 else
1962 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
e315cd28 1963 qla2xxx_wake_dpc(vha);
1da177e4
LT		 1964 }
1965}
1966
9a853f71
AV		 1967/**
1968 * qla24xx_mbx_completion() - Process mailbox command completions.
1969 * @ha: SCSI driver HA context
1970 * @mb0: Mailbox0 register
1971 */
1972static void
e315cd28 1973qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
9a853f71
AV		 1974{
1975 uint16_t cnt;
1976 uint16_t __iomem *wptr;
e315cd28 1977 struct qla_hw_data *ha = vha->hw;
9a853f71
AV		 1978 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1979
1980 /* Load return mailbox registers. */
1981 ha->flags.mbox_int = 1;
1982 ha->mailbox_out[0] = mb0;
1983 wptr = (uint16_t __iomem *)&reg->mailbox1;
1984
1985 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1986 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1987 wptr++;
1988 }
1989
cfb0919c
CD		 1990 if (!ha->mcp)
1991 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERRROR.\n");
9a853f71
AV		 1992}
1993
1994/**
1995 * qla24xx_process_response_queue() - Process response queue entries.
1996 * @ha: SCSI driver HA context
1997 */
2afa19a9
AC		 1998void qla24xx_process_response_queue(struct scsi_qla_host *vha,
1999 struct rsp_que *rsp)
9a853f71 2000{
9a853f71 2001 struct sts_entry_24xx *pkt;
a9083016 2002 struct qla_hw_data *ha = vha->hw;
9a853f71 2003
e315cd28 2004 if (!vha->flags.online)
9a853f71
AV		 2005 return;
2006
e315cd28
AC		 2007 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2008 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
9a853f71 2009
e315cd28
AC		 2010 rsp->ring_index++;
2011 if (rsp->ring_index == rsp->length) {
2012 rsp->ring_index = 0;
2013 rsp->ring_ptr = rsp->ring;
9a853f71 2014 } else {
e315cd28 2015 rsp->ring_ptr++;
9a853f71
AV		 2016 }
2017
2018 if (pkt->entry_status != 0) {
73208dfd 2019 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
9a853f71
AV		 2020 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2021 wmb();
2022 continue;
2023 }
2024
2025 switch (pkt->entry_type) {
2026 case STATUS_TYPE:
73208dfd 2027 qla2x00_status_entry(vha, rsp, pkt);
9a853f71
AV		 2028 break;
2029 case STATUS_CONT_TYPE:
2afa19a9 2030 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
9a853f71 2031 break;
2c3dfe3f 2032 case VP_RPT_ID_IOCB_TYPE:
e315cd28 2033 qla24xx_report_id_acquisition(vha,
2c3dfe3f
SJ		 2034 (struct vp_rpt_id_entry_24xx *)pkt);
2035 break;
ac280b67
AV		 2036 case LOGINOUT_PORT_IOCB_TYPE:
2037 qla24xx_logio_entry(vha, rsp->req,
2038 (struct logio_entry_24xx *)pkt);
2039 break;
3822263e
MI		 2040 case TSK_MGMT_IOCB_TYPE:
2041 qla24xx_tm_iocb_entry(vha, rsp->req,
2042 (struct tsk_mgmt_entry *)pkt);
2043 break;
9a069e19
GM		 2044 case CT_IOCB_TYPE:
2045 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2046 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags);
2047 break;
2048 case ELS_IOCB_TYPE:
2049 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2050 break;
54883291
SK		 2051 case MARKER_TYPE:
2052 /* Do nothing in this case, this check is to prevent it
2053 * from falling into default case
2054 */
2055 break;
9a853f71
AV		 2056 default:
2057 /* Type Not Supported. */
7c3df132
SK		 2058 ql_dbg(ql_dbg_async, vha, 0x5042,
2059 "Received unknown response pkt type %x "
9a853f71 2060 "entry status=%x.\n",
7c3df132 2061 pkt->entry_type, pkt->entry_status);
9a853f71
AV		 2062 break;
2063 }
2064 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2065 wmb();
2066 }
2067
2068 /* Adjust ring index */
a9083016
GM		 2069 if (IS_QLA82XX(ha)) {
2070 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2071 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2072 } else
2073 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
9a853f71
AV		 2074}
2075
05236a05 2076static void
e315cd28 2077qla2xxx_check_risc_status(scsi_qla_host_t *vha)
05236a05
AV		 2078{
2079 int rval;
2080 uint32_t cnt;
e315cd28 2081 struct qla_hw_data *ha = vha->hw;
05236a05
AV		 2082 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2083
3a03eb79 2084 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha))
05236a05
AV		 2085 return;
2086
2087 rval = QLA_SUCCESS;
2088 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2089 RD_REG_DWORD(&reg->iobase_addr);
2090 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2091 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2092 rval == QLA_SUCCESS; cnt--) {
2093 if (cnt) {
2094 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2095 udelay(10);
2096 } else
2097 rval = QLA_FUNCTION_TIMEOUT;
2098 }
2099 if (rval == QLA_SUCCESS)
2100 goto next_test;
2101
2102 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2103 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2104 rval == QLA_SUCCESS; cnt--) {
2105 if (cnt) {
2106 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2107 udelay(10);
2108 } else
2109 rval = QLA_FUNCTION_TIMEOUT;
2110 }
2111 if (rval != QLA_SUCCESS)
2112 goto done;
2113
2114next_test:
2115 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
7c3df132
SK		 2116 ql_log(ql_log_info, vha, 0x504c,
2117 "Additional code -- 0x55AA.\n");
05236a05
AV		 2118
2119done:
2120 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2121 RD_REG_DWORD(&reg->iobase_window);
2122}
2123
9a853f71
AV		 2124/**
2125 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
2126 * @irq:
2127 * @dev_id: SCSI driver HA context
9a853f71
AV		 2128 *
2129 * Called by system whenever the host adapter generates an interrupt.
2130 *
2131 * Returns handled flag.
2132 */
2133irqreturn_t
7d12e780 2134qla24xx_intr_handler(int irq, void *dev_id)
9a853f71 2135{
e315cd28
AC		 2136 scsi_qla_host_t *vha;
2137 struct qla_hw_data *ha;
9a853f71
AV		 2138 struct device_reg_24xx __iomem *reg;
2139 int status;
9a853f71
AV		 2140 unsigned long iter;
2141 uint32_t stat;
2142 uint32_t hccr;
2143 uint16_t mb[4];
e315cd28 2144 struct rsp_que *rsp;
43fac4d9 2145 unsigned long flags;
9a853f71 2146
e315cd28
AC		 2147 rsp = (struct rsp_que *) dev_id;
2148 if (!rsp) {
9a853f71 2149 printk(KERN_INFO
7c3df132 2150 "%s(): NULL response queue pointer.\n", __func__);
9a853f71
AV		 2151 return IRQ_NONE;
2152 }
2153
e315cd28 2154 ha = rsp->hw;
9a853f71
AV		 2155 reg = &ha->iobase->isp24;
2156 status = 0;
2157
85880801
AV		 2158 if (unlikely(pci_channel_offline(ha->pdev)))
2159 return IRQ_HANDLED;
2160
43fac4d9 2161 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 2162 vha = pci_get_drvdata(ha->pdev);
9a853f71
AV		 2163 for (iter = 50; iter--; ) {
2164 stat = RD_REG_DWORD(&reg->host_status);
2165 if (stat & HSRX_RISC_PAUSED) {
85880801 2166 if (unlikely(pci_channel_offline(ha->pdev)))
14e660e6
SJ		 2167 break;
2168
9a853f71
AV		 2169 hccr = RD_REG_DWORD(&reg->hccr);
2170
7c3df132
SK		 2171 ql_log(ql_log_warn, vha, 0x504b,
2172 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2173 hccr);
05236a05 2174
e315cd28 2175 qla2xxx_check_risc_status(vha);
05236a05 2176
e315cd28
AC		 2177 ha->isp_ops->fw_dump(vha, 1);
2178 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9a853f71
AV		 2179 break;
2180 } else if ((stat & HSRX_RISC_INT) == 0)
2181 break;
2182
2183 switch (stat & 0xff) {
2184 case 0x1:
2185 case 0x2:
2186 case 0x10:
2187 case 0x11:
e315cd28 2188 qla24xx_mbx_completion(vha, MSW(stat));
9a853f71
AV		 2189 status |= MBX_INTERRUPT;
2190
2191 break;
2192 case 0x12:
2193 mb[0] = MSW(stat);
2194 mb[1] = RD_REG_WORD(&reg->mailbox1);
2195 mb[2] = RD_REG_WORD(&reg->mailbox2);
2196 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 2197 qla2x00_async_event(vha, rsp, mb);
9a853f71
AV		 2198 break;
2199 case 0x13:
73208dfd 2200 case 0x14:
2afa19a9 2201 qla24xx_process_response_queue(vha, rsp);
9a853f71
AV		 2202 break;
2203 default:
7c3df132
SK		 2204 ql_dbg(ql_dbg_async, vha, 0x504f,
2205 "Unrecognized interrupt type (%d).\n", stat * 0xff);
9a853f71
AV		 2206 break;
2207 }
2208 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2209 RD_REG_DWORD_RELAXED(&reg->hccr);
2210 }
43fac4d9 2211 spin_unlock_irqrestore(&ha->hardware_lock, flags);
9a853f71
AV		 2212
2213 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2214 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
9a853f71 2215 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 2216 complete(&ha->mbx_intr_comp);
9a853f71
AV		 2217 }
2218
2219 return IRQ_HANDLED;
2220}
2221
a8488abe
AV		 2222static irqreturn_t
2223qla24xx_msix_rsp_q(int irq, void *dev_id)
2224{
e315cd28
AC		 2225 struct qla_hw_data *ha;
2226 struct rsp_que *rsp;
a8488abe 2227 struct device_reg_24xx __iomem *reg;
2afa19a9 2228 struct scsi_qla_host *vha;
0f19bc68 2229 unsigned long flags;
a8488abe 2230
e315cd28
AC		 2231 rsp = (struct rsp_que *) dev_id;
2232 if (!rsp) {
2233 printk(KERN_INFO
7c3df132 2234 "%s(): NULL response queue pointer.\n", __func__);
e315cd28
AC		 2235 return IRQ_NONE;
2236 }
2237 ha = rsp->hw;
a8488abe
AV		 2238 reg = &ha->iobase->isp24;
2239
0f19bc68 2240 spin_lock_irqsave(&ha->hardware_lock, flags);
a8488abe 2241
a67093d4 2242 vha = pci_get_drvdata(ha->pdev);
2afa19a9 2243 qla24xx_process_response_queue(vha, rsp);
3155754a 2244 if (!ha->flags.disable_msix_handshake) {
eb94114b
AC		 2245 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2246 RD_REG_DWORD_RELAXED(&reg->hccr);
2247 }
0f19bc68 2248 spin_unlock_irqrestore(&ha->hardware_lock, flags);
a8488abe
AV		 2249
2250 return IRQ_HANDLED;
2251}
2252
68ca949c
AC		 2253static irqreturn_t
2254qla25xx_msix_rsp_q(int irq, void *dev_id)
2255{
2256 struct qla_hw_data *ha;
2257 struct rsp_que *rsp;
3155754a 2258 struct device_reg_24xx __iomem *reg;
0f19bc68 2259 unsigned long flags;
68ca949c
AC		 2260
2261 rsp = (struct rsp_que *) dev_id;
2262 if (!rsp) {
2263 printk(KERN_INFO
7c3df132 2264 "%s(): NULL response queue pointer.\n", __func__);
68ca949c
AC		 2265 return IRQ_NONE;
2266 }
2267 ha = rsp->hw;
2268
3155754a 2269 /* Clear the interrupt, if enabled, for this response queue */
d424754c 2270 if (!ha->flags.disable_msix_handshake) {
3155754a 2271 reg = &ha->iobase->isp24;
0f19bc68 2272 spin_lock_irqsave(&ha->hardware_lock, flags);
3155754a
AC		 2273 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2274 RD_REG_DWORD_RELAXED(&reg->hccr);
0f19bc68 2275 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3155754a 2276 }
68ca949c
AC		 2277 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2278
2279 return IRQ_HANDLED;
2280}
2281
a8488abe
AV		 2282static irqreturn_t
2283qla24xx_msix_default(int irq, void *dev_id)
2284{
e315cd28
AC		 2285 scsi_qla_host_t *vha;
2286 struct qla_hw_data *ha;
2287 struct rsp_que *rsp;
a8488abe
AV		 2288 struct device_reg_24xx __iomem *reg;
2289 int status;
a8488abe
AV		 2290 uint32_t stat;
2291 uint32_t hccr;
2292 uint16_t mb[4];
0f19bc68 2293 unsigned long flags;
a8488abe 2294
e315cd28
AC		 2295 rsp = (struct rsp_que *) dev_id;
2296 if (!rsp) {
7c3df132
SK		 2297 printk(KERN_INFO
2298 "%s(): NULL response queue pointer.\n", __func__);
e315cd28
AC		 2299 return IRQ_NONE;
2300 }
2301 ha = rsp->hw;
a8488abe
AV		 2302 reg = &ha->iobase->isp24;
2303 status = 0;
2304
0f19bc68 2305 spin_lock_irqsave(&ha->hardware_lock, flags);
2afa19a9 2306 vha = pci_get_drvdata(ha->pdev);
87f27015 2307 do {
a8488abe
AV		 2308 stat = RD_REG_DWORD(&reg->host_status);
2309 if (stat & HSRX_RISC_PAUSED) {
85880801 2310 if (unlikely(pci_channel_offline(ha->pdev)))
14e660e6
SJ		 2311 break;
2312
a8488abe
AV		 2313 hccr = RD_REG_DWORD(&reg->hccr);
2314
7c3df132
SK		 2315 ql_log(ql_log_info, vha, 0x5050,
2316 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2317 hccr);
05236a05 2318
e315cd28 2319 qla2xxx_check_risc_status(vha);
05236a05 2320
e315cd28
AC		 2321 ha->isp_ops->fw_dump(vha, 1);
2322 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
a8488abe
AV		 2323 break;
2324 } else if ((stat & HSRX_RISC_INT) == 0)
2325 break;
2326
2327 switch (stat & 0xff) {
2328 case 0x1:
2329 case 0x2:
2330 case 0x10:
2331 case 0x11:
e315cd28 2332 qla24xx_mbx_completion(vha, MSW(stat));
a8488abe
AV		 2333 status |= MBX_INTERRUPT;
2334
2335 break;
2336 case 0x12:
2337 mb[0] = MSW(stat);
2338 mb[1] = RD_REG_WORD(&reg->mailbox1);
2339 mb[2] = RD_REG_WORD(&reg->mailbox2);
2340 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 2341 qla2x00_async_event(vha, rsp, mb);
a8488abe
AV		 2342 break;
2343 case 0x13:
73208dfd 2344 case 0x14:
2afa19a9 2345 qla24xx_process_response_queue(vha, rsp);
a8488abe
AV		 2346 break;
2347 default:
7c3df132
SK		 2348 ql_dbg(ql_dbg_async, vha, 0x5051,
2349 "Unrecognized interrupt type (%d).\n", stat & 0xff);
a8488abe
AV		 2350 break;
2351 }
2352 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
87f27015 2353 } while (0);
0f19bc68 2354 spin_unlock_irqrestore(&ha->hardware_lock, flags);
a8488abe
AV		 2355
2356 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2357 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
a8488abe 2358 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 2359 complete(&ha->mbx_intr_comp);
a8488abe 2360 }
a8488abe
AV		 2361 return IRQ_HANDLED;
2362}
2363
2364/* Interrupt handling helpers. */
2365
2366struct qla_init_msix_entry {
a8488abe 2367 const char *name;
476834c2 2368 irq_handler_t handler;
a8488abe
AV		 2369};
2370
68ca949c 2371static struct qla_init_msix_entry msix_entries[3] = {
2afa19a9
AC		 2372 { "qla2xxx (default)", qla24xx_msix_default },
2373 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
68ca949c 2374 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
a8488abe
AV		 2375};
2376
a9083016
GM		 2377static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2378 { "qla2xxx (default)", qla82xx_msix_default },
2379 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2380};
2381
a8488abe 2382static void
e315cd28 2383qla24xx_disable_msix(struct qla_hw_data *ha)
a8488abe
AV		 2384{
2385 int i;
2386 struct qla_msix_entry *qentry;
7c3df132 2387 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a8488abe 2388
73208dfd
AC		 2389 for (i = 0; i < ha->msix_count; i++) {
2390 qentry = &ha->msix_entries[i];
a8488abe 2391 if (qentry->have_irq)
73208dfd 2392 free_irq(qentry->vector, qentry->rsp);
a8488abe
AV		 2393 }
2394 pci_disable_msix(ha->pdev);
73208dfd
AC		 2395 kfree(ha->msix_entries);
2396 ha->msix_entries = NULL;
2397 ha->flags.msix_enabled = 0;
7c3df132
SK		 2398 ql_dbg(ql_dbg_init, vha, 0x0042,
2399 "Disabled the MSI.\n");
a8488abe
AV		 2400}
2401
2402static int
73208dfd 2403qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe 2404{
ad038fa8 2405#define MIN_MSIX_COUNT 2
a8488abe 2406 int i, ret;
73208dfd 2407 struct msix_entry *entries;
a8488abe 2408 struct qla_msix_entry *qentry;
7c3df132 2409 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
73208dfd
AC		 2410
2411 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
a9083016 2412 GFP_KERNEL);
7c3df132
SK		 2413 if (!entries) {
2414 ql_log(ql_log_warn, vha, 0x00bc,
2415 "Failed to allocate memory for msix_entry.\n");
73208dfd 2416 return -ENOMEM;
7c3df132 2417 }
a8488abe 2418
73208dfd
AC		 2419 for (i = 0; i < ha->msix_count; i++)
2420 entries[i].entry = i;
a8488abe 2421
73208dfd 2422 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
a8488abe 2423 if (ret) {
ad038fa8
LC		 2424 if (ret < MIN_MSIX_COUNT)
2425 goto msix_failed;
2426
7c3df132
SK		 2427 ql_log(ql_log_warn, vha, 0x00c6,
2428 "MSI-X: Failed to enable support "
2429 "-- %d/%d\n Retry with %d vectors.\n",
2430 ha->msix_count, ret, ret);
73208dfd
AC		 2431 ha->msix_count = ret;
2432 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2433 if (ret) {
ad038fa8 2434msix_failed:
7c3df132
SK		 2435 ql_log(ql_log_fatal, vha, 0x00c7,
2436 "MSI-X: Failed to enable support, "
2437 "giving up -- %d/%d.\n",
2438 ha->msix_count, ret);
73208dfd
AC		 2439 goto msix_out;
2440 }
2afa19a9 2441 ha->max_rsp_queues = ha->msix_count - 1;
73208dfd
AC		 2442 }
2443 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2444 ha->msix_count, GFP_KERNEL);
2445 if (!ha->msix_entries) {
7c3df132
SK		 2446 ql_log(ql_log_fatal, vha, 0x00c8,
2447 "Failed to allocate memory for ha->msix_entries.\n");
73208dfd 2448 ret = -ENOMEM;
a8488abe
AV		 2449 goto msix_out;
2450 }
2451 ha->flags.msix_enabled = 1;
2452
73208dfd
AC		 2453 for (i = 0; i < ha->msix_count; i++) {
2454 qentry = &ha->msix_entries[i];
2455 qentry->vector = entries[i].vector;
2456 qentry->entry = entries[i].entry;
a8488abe 2457 qentry->have_irq = 0;
73208dfd 2458 qentry->rsp = NULL;
a8488abe
AV		 2459 }
2460
2afa19a9
AC		 2461 /* Enable MSI-X vectors for the base queue */
2462 for (i = 0; i < 2; i++) {
2463 qentry = &ha->msix_entries[i];
a9083016
GM		 2464 if (IS_QLA82XX(ha)) {
2465 ret = request_irq(qentry->vector,
2466 qla82xx_msix_entries[i].handler,
2467 0, qla82xx_msix_entries[i].name, rsp);
2468 } else {
2469 ret = request_irq(qentry->vector,
2470 msix_entries[i].handler,
2471 0, msix_entries[i].name, rsp);
2472 }
2afa19a9 2473 if (ret) {
7c3df132
SK		 2474 ql_log(ql_log_fatal, vha, 0x00cb,
2475 "MSI-X: unable to register handler -- %x/%d.\n",
2476 qentry->vector, ret);
2afa19a9
AC		 2477 qla24xx_disable_msix(ha);
2478 ha->mqenable = 0;
2479 goto msix_out;
2480 }
2481 qentry->have_irq = 1;
2482 qentry->rsp = rsp;
2483 rsp->msix = qentry;
73208dfd 2484 }
73208dfd
AC		 2485
2486 /* Enable MSI-X vector for response queue update for queue 0 */
2afa19a9 2487 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
73208dfd 2488 ha->mqenable = 1;
7c3df132
SK		 2489 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2490 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2491 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2492 ql_dbg(ql_dbg_init, vha, 0x0055,
2493 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2494 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
73208dfd 2495
a8488abe 2496msix_out:
73208dfd 2497 kfree(entries);
a8488abe
AV		 2498 return ret;
2499}
2500
2501int
73208dfd 2502qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe
AV		 2503{
2504 int ret;
963b0fdd 2505 device_reg_t __iomem *reg = ha->iobase;
7c3df132 2506 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
a8488abe
AV		 2507
2508 /* If possible, enable MSI-X. */
3a03eb79 2509 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
a9083016 2510 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha))
6377a7ae
BH		 2511 goto skip_msi;
2512
2513 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2514 (ha->pdev->subsystem_device == 0x7040 ||
2515 ha->pdev->subsystem_device == 0x7041 ||
2516 ha->pdev->subsystem_device == 0x1705)) {
7c3df132
SK		 2517 ql_log(ql_log_warn, vha, 0x0034,
2518 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
6377a7ae 2519 ha->pdev->subsystem_vendor,
7c3df132 2520 ha->pdev->subsystem_device);
6377a7ae
BH		 2521 goto skip_msi;
2522 }
a8488abe 2523
42cd4f5d 2524 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
7c3df132
SK		 2525 ql_log(ql_log_warn, vha, 0x0035,
2526 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
42cd4f5d 2527 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
a8488abe
AV		 2528 goto skip_msix;
2529 }
2530
73208dfd 2531 ret = qla24xx_enable_msix(ha, rsp);
a8488abe 2532 if (!ret) {
7c3df132
SK		 2533 ql_dbg(ql_dbg_init, vha, 0x0036,
2534 "MSI-X: Enabled (0x%X, 0x%X).\n",
2535 ha->chip_revision, ha->fw_attributes);
963b0fdd 2536 goto clear_risc_ints;
a8488abe 2537 }
7c3df132
SK		 2538 ql_log(ql_log_info, vha, 0x0037,
2539 "MSI-X Falling back-to MSI mode -%d.\n", ret);
a8488abe 2540skip_msix:
cbedb601 2541
3a03eb79
AV		 2542 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2543 !IS_QLA8001(ha))
cbedb601
AV		 2544 goto skip_msi;
2545
2546 ret = pci_enable_msi(ha->pdev);
2547 if (!ret) {
7c3df132
SK		 2548 ql_dbg(ql_dbg_init, vha, 0x0038,
2549 "MSI: Enabled.\n");
cbedb601 2550 ha->flags.msi_enabled = 1;
a9083016 2551 } else
7c3df132
SK		 2552 ql_log(ql_log_warn, vha, 0x0039,
2553 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
cbedb601
AV		 2554skip_msi:
2555
fd34f556 2556 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
7992abfc
MH		 2557 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2558 QLA2XXX_DRIVER_NAME, rsp);
963b0fdd 2559 if (ret) {
7c3df132 2560 ql_log(ql_log_warn, vha, 0x003a,
a8488abe
AV		 2561 "Failed to reserve interrupt %d already in use.\n",
2562 ha->pdev->irq);
963b0fdd
AV		 2563 goto fail;
2564 }
7992abfc 2565
963b0fdd
AV		 2566clear_risc_ints:
2567
3a03eb79
AV		 2568 /*
2569 * FIXME: Noted that 8014s were being dropped during NK testing.
2570 * Timing deltas during MSI-X/INTa transitions?
2571 */
a9083016 2572 if (IS_QLA81XX(ha) || IS_QLA82XX(ha))
3a03eb79 2573 goto fail;
c6952483 2574 spin_lock_irq(&ha->hardware_lock);
963b0fdd
AV		 2575 if (IS_FWI2_CAPABLE(ha)) {
2576 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
2577 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
2578 } else {
2579 WRT_REG_WORD(&reg->isp.semaphore, 0);
2580 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
2581 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
a8488abe 2582 }
c6952483 2583 spin_unlock_irq(&ha->hardware_lock);
a8488abe 2584
963b0fdd 2585fail:
a8488abe
AV		 2586 return ret;
2587}
2588
2589void
e315cd28 2590qla2x00_free_irqs(scsi_qla_host_t *vha)
a8488abe 2591{
e315cd28 2592 struct qla_hw_data *ha = vha->hw;
73208dfd 2593 struct rsp_que *rsp = ha->rsp_q_map[0];
a8488abe
AV		 2594
2595 if (ha->flags.msix_enabled)
2596 qla24xx_disable_msix(ha);
90a86fc0 2597 else if (ha->flags.msi_enabled) {
e315cd28 2598 free_irq(ha->pdev->irq, rsp);
cbedb601 2599 pci_disable_msi(ha->pdev);
90a86fc0
JC		 2600 } else
2601 free_irq(ha->pdev->irq, rsp);
a8488abe 2602}
e315cd28 2603
73208dfd
AC		 2604
2605int qla25xx_request_irq(struct rsp_que *rsp)
2606{
2607 struct qla_hw_data *ha = rsp->hw;
2afa19a9 2608 struct qla_init_msix_entry *intr = &msix_entries[2];
73208dfd 2609 struct qla_msix_entry *msix = rsp->msix;
7c3df132 2610 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
73208dfd
AC		 2611 int ret;
2612
2613 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2614 if (ret) {
7c3df132
SK		 2615 ql_log(ql_log_fatal, vha, 0x00e6,
2616 "MSI-X: Unable to register handler -- %x/%d.\n",
2617 msix->vector, ret);
73208dfd
AC		 2618 return ret;
2619 }
2620 msix->have_irq = 1;
2621 msix->rsp = rsp;
2622 return ret;
2623}
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