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[SCSI] qla2xxx: Use proper request/response queues with MQ instantiations.
[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_isr.c
CommitLineData
1da177e4 1/*
fa90c54f 2 * QLogic Fibre Channel HBA Driver
01e58d8e 3 * Copyright (c) 2003-2008 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>
df7baa50
AV		 10#include <scsi/scsi_tcq.h>
11
1da177e4 12static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
73208dfd
AC		 13static void qla2x00_process_completed_request(struct scsi_qla_host *,
14 struct req_que *, uint32_t);
15static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
1da177e4 16static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *);
73208dfd
AC		 17static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
18 sts_entry_t *);
e315cd28 19static struct scsi_qla_host *qla2x00_get_rsp_host(struct rsp_que *);
9a853f71 20
1da177e4
LT		 21/**
22 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
23 * @irq:
24 * @dev_id: SCSI driver HA context
1da177e4
LT		 25 *
26 * Called by system whenever the host adapter generates an interrupt.
27 *
28 * Returns handled flag.
29 */
30irqreturn_t
7d12e780 31qla2100_intr_handler(int irq, void *dev_id)
1da177e4 32{
e315cd28
AC		 33 scsi_qla_host_t *vha;
34 struct qla_hw_data *ha;
3d71644c 35 struct device_reg_2xxx __iomem *reg;
1da177e4 36 int status;
1da177e4 37 unsigned long iter;
14e660e6 38 uint16_t hccr;
9a853f71 39 uint16_t mb[4];
e315cd28 40 struct rsp_que *rsp;
1da177e4 41
e315cd28
AC		 42 rsp = (struct rsp_que *) dev_id;
43 if (!rsp) {
1da177e4 44 printk(KERN_INFO
e315cd28 45 "%s(): NULL response queue pointer\n", __func__);
1da177e4
LT		 46 return (IRQ_NONE);
47 }
48
e315cd28 49 ha = rsp->hw;
3d71644c 50 reg = &ha->iobase->isp;
1da177e4
LT		 51 status = 0;
52
c6952483 53 spin_lock(&ha->hardware_lock);
e315cd28 54 vha = qla2x00_get_rsp_host(rsp);
1da177e4 55 for (iter = 50; iter--; ) {
14e660e6
SJ		 56 hccr = RD_REG_WORD(&reg->hccr);
57 if (hccr & HCCR_RISC_PAUSE) {
58 if (pci_channel_offline(ha->pdev))
59 break;
60
61 /*
62 * Issue a "HARD" reset in order for the RISC interrupt
63 * bit to be cleared. Schedule a big hammmer to get
64 * out of the RISC PAUSED state.
65 */
66 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
67 RD_REG_WORD(&reg->hccr);
68
e315cd28
AC		 69 ha->isp_ops->fw_dump(vha, 1);
70 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
14e660e6
SJ		 71 break;
72 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
1da177e4
LT		 73 break;
74
75 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
76 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
77 RD_REG_WORD(&reg->hccr);
78
79 /* Get mailbox data. */
9a853f71
AV		 80 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
81 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
e315cd28 82 qla2x00_mbx_completion(vha, mb[0]);
1da177e4 83 status |= MBX_INTERRUPT;
9a853f71
AV		 84 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
85 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
86 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
87 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
73208dfd 88 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 89 } else {
90 /*EMPTY*/
91 DEBUG2(printk("scsi(%ld): Unrecognized "
9a853f71 92 "interrupt type (%d).\n",
e315cd28 93 vha->host_no, mb[0]));
1da177e4
LT		 94 }
95 /* Release mailbox registers. */
96 WRT_REG_WORD(&reg->semaphore, 0);
97 RD_REG_WORD(&reg->semaphore);
98 } else {
73208dfd 99 qla2x00_process_response_queue(rsp);
1da177e4
LT		 100
101 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
102 RD_REG_WORD(&reg->hccr);
103 }
104 }
c6952483 105 spin_unlock(&ha->hardware_lock);
1da177e4 106
1da177e4
LT		 107 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
108 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1da177e4 109 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 110 complete(&ha->mbx_intr_comp);
1da177e4
LT		 111 }
112
1da177e4
LT		 113 return (IRQ_HANDLED);
114}
115
116/**
117 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
118 * @irq:
119 * @dev_id: SCSI driver HA context
1da177e4
LT		 120 *
121 * Called by system whenever the host adapter generates an interrupt.
122 *
123 * Returns handled flag.
124 */
125irqreturn_t
7d12e780 126qla2300_intr_handler(int irq, void *dev_id)
1da177e4 127{
e315cd28 128 scsi_qla_host_t *vha;
3d71644c 129 struct device_reg_2xxx __iomem *reg;
1da177e4 130 int status;
1da177e4
LT		 131 unsigned long iter;
132 uint32_t stat;
1da177e4 133 uint16_t hccr;
9a853f71 134 uint16_t mb[4];
e315cd28
AC		 135 struct rsp_que *rsp;
136 struct qla_hw_data *ha;
1da177e4 137
e315cd28
AC		 138 rsp = (struct rsp_que *) dev_id;
139 if (!rsp) {
1da177e4 140 printk(KERN_INFO
e315cd28 141 "%s(): NULL response queue pointer\n", __func__);
1da177e4
LT		 142 return (IRQ_NONE);
143 }
144
e315cd28 145 ha = rsp->hw;
3d71644c 146 reg = &ha->iobase->isp;
1da177e4
LT		 147 status = 0;
148
c6952483 149 spin_lock(&ha->hardware_lock);
e315cd28 150 vha = qla2x00_get_rsp_host(rsp);
1da177e4
LT		 151 for (iter = 50; iter--; ) {
152 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
153 if (stat & HSR_RISC_PAUSED) {
14e660e6
SJ		 154 if (pci_channel_offline(ha->pdev))
155 break;
156
1da177e4
LT		 157 hccr = RD_REG_WORD(&reg->hccr);
158 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
07f31805
AV		 159 qla_printk(KERN_INFO, ha, "Parity error -- "
160 "HCCR=%x, Dumping firmware!\n", hccr);
1da177e4 161 else
07f31805
AV		 162 qla_printk(KERN_INFO, ha, "RISC paused -- "
163 "HCCR=%x, Dumping firmware!\n", hccr);
1da177e4
LT		 164
165 /*
166 * Issue a "HARD" reset in order for the RISC
167 * interrupt bit to be cleared. Schedule a big
168 * hammmer to get out of the RISC PAUSED state.
169 */
170 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
171 RD_REG_WORD(&reg->hccr);
07f31805 172
e315cd28
AC		 173 ha->isp_ops->fw_dump(vha, 1);
174 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 175 break;
176 } else if ((stat & HSR_RISC_INT) == 0)
177 break;
178
1da177e4 179 switch (stat & 0xff) {
1da177e4
LT		 180 case 0x1:
181 case 0x2:
182 case 0x10:
183 case 0x11:
e315cd28 184 qla2x00_mbx_completion(vha, MSW(stat));
1da177e4
LT		 185 status |= MBX_INTERRUPT;
186
187 /* Release mailbox registers. */
188 WRT_REG_WORD(&reg->semaphore, 0);
189 break;
190 case 0x12:
9a853f71
AV		 191 mb[0] = MSW(stat);
192 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
193 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
194 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
73208dfd 195 qla2x00_async_event(vha, rsp, mb);
9a853f71
AV		 196 break;
197 case 0x13:
73208dfd 198 qla2x00_process_response_queue(rsp);
1da177e4
LT		 199 break;
200 case 0x15:
9a853f71
AV		 201 mb[0] = MBA_CMPLT_1_16BIT;
202 mb[1] = MSW(stat);
73208dfd 203 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 204 break;
205 case 0x16:
9a853f71
AV		 206 mb[0] = MBA_SCSI_COMPLETION;
207 mb[1] = MSW(stat);
208 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
73208dfd 209 qla2x00_async_event(vha, rsp, mb);
1da177e4
LT		 210 break;
211 default:
212 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
9a853f71 213 "(%d).\n",
e315cd28 214 vha->host_no, stat & 0xff));
1da177e4
LT		 215 break;
216 }
217 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
218 RD_REG_WORD_RELAXED(&reg->hccr);
219 }
c6952483 220 spin_unlock(&ha->hardware_lock);
1da177e4 221
1da177e4
LT		 222 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
223 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
1da177e4 224 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 225 complete(&ha->mbx_intr_comp);
1da177e4
LT		 226 }
227
1da177e4
LT		 228 return (IRQ_HANDLED);
229}
230
231/**
232 * qla2x00_mbx_completion() - Process mailbox command completions.
233 * @ha: SCSI driver HA context
234 * @mb0: Mailbox0 register
235 */
236static void
e315cd28 237qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
1da177e4
LT		 238{
239 uint16_t cnt;
240 uint16_t __iomem *wptr;
e315cd28 241 struct qla_hw_data *ha = vha->hw;
3d71644c 242 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 243
244 /* Load return mailbox registers. */
245 ha->flags.mbox_int = 1;
246 ha->mailbox_out[0] = mb0;
247 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
248
249 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
fa2a1ce5 250 if (IS_QLA2200(ha) && cnt == 8)
1da177e4
LT		 251 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
252 if (cnt == 4 || cnt == 5)
253 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
254 else
255 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
fa2a1ce5 256
1da177e4
LT		 257 wptr++;
258 }
259
260 if (ha->mcp) {
261 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
e315cd28 262 __func__, vha->host_no, ha->mcp->mb[0]));
1da177e4
LT		 263 } else {
264 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
e315cd28 265 __func__, vha->host_no));
1da177e4
LT		 266 }
267}
268
269/**
270 * qla2x00_async_event() - Process aynchronous events.
271 * @ha: SCSI driver HA context
9a853f71 272 * @mb: Mailbox registers (0 - 3)
1da177e4 273 */
2c3dfe3f 274void
73208dfd 275qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
1da177e4 276{
9a853f71 277#define LS_UNKNOWN 2
c3a2f0df 278 static char *link_speeds[5] = { "1", "2", "?", "4", "8" };
1da177e4 279 char *link_speed;
1da177e4
LT		 280 uint16_t handle_cnt;
281 uint16_t cnt;
282 uint32_t handles[5];
e315cd28 283 struct qla_hw_data *ha = vha->hw;
3d71644c 284 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 285 uint32_t rscn_entry, host_pid;
286 uint8_t rscn_queue_index;
4d4df193 287 unsigned long flags;
1da177e4
LT		 288
289 /* Setup to process RIO completion. */
290 handle_cnt = 0;
1da177e4
LT		 291 switch (mb[0]) {
292 case MBA_SCSI_COMPLETION:
9a853f71 293 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 294 handle_cnt = 1;
295 break;
296 case MBA_CMPLT_1_16BIT:
9a853f71 297 handles[0] = mb[1];
1da177e4
LT		 298 handle_cnt = 1;
299 mb[0] = MBA_SCSI_COMPLETION;
300 break;
301 case MBA_CMPLT_2_16BIT:
9a853f71
AV		 302 handles[0] = mb[1];
303 handles[1] = mb[2];
1da177e4
LT		 304 handle_cnt = 2;
305 mb[0] = MBA_SCSI_COMPLETION;
306 break;
307 case MBA_CMPLT_3_16BIT:
9a853f71
AV		 308 handles[0] = mb[1];
309 handles[1] = mb[2];
310 handles[2] = mb[3];
1da177e4
LT		 311 handle_cnt = 3;
312 mb[0] = MBA_SCSI_COMPLETION;
313 break;
314 case MBA_CMPLT_4_16BIT:
9a853f71
AV		 315 handles[0] = mb[1];
316 handles[1] = mb[2];
317 handles[2] = mb[3];
1da177e4
LT		 318 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
319 handle_cnt = 4;
320 mb[0] = MBA_SCSI_COMPLETION;
321 break;
322 case MBA_CMPLT_5_16BIT:
9a853f71
AV		 323 handles[0] = mb[1];
324 handles[1] = mb[2];
325 handles[2] = mb[3];
1da177e4
LT		 326 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
327 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
328 handle_cnt = 5;
329 mb[0] = MBA_SCSI_COMPLETION;
330 break;
331 case MBA_CMPLT_2_32BIT:
9a853f71 332 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
1da177e4
LT		 333 handles[1] = le32_to_cpu(
334 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
335 RD_MAILBOX_REG(ha, reg, 6));
336 handle_cnt = 2;
337 mb[0] = MBA_SCSI_COMPLETION;
338 break;
339 default:
340 break;
341 }
342
343 switch (mb[0]) {
344 case MBA_SCSI_COMPLETION: /* Fast Post */
e315cd28 345 if (!vha->flags.online)
1da177e4
LT		 346 break;
347
348 for (cnt = 0; cnt < handle_cnt; cnt++)
73208dfd
AC		 349 qla2x00_process_completed_request(vha, rsp->req,
350 handles[cnt]);
1da177e4
LT		 351 break;
352
353 case MBA_RESET: /* Reset */
e315cd28
AC		 354 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n",
355 vha->host_no));
1da177e4 356
e315cd28 357 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 358 break;
359
360 case MBA_SYSTEM_ERR: /* System Error */
1da177e4
LT		 361 qla_printk(KERN_INFO, ha,
362 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n",
363 mb[1], mb[2], mb[3]);
364
e315cd28 365 ha->isp_ops->fw_dump(vha, 1);
1da177e4 366
e428924c 367 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 368 if (mb[1] == 0 && mb[2] == 0) {
369 qla_printk(KERN_ERR, ha,
370 "Unrecoverable Hardware Error: adapter "
371 "marked OFFLINE!\n");
e315cd28 372 vha->flags.online = 0;
9a853f71 373 } else
e315cd28 374 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9a853f71 375 } else if (mb[1] == 0) {
1da177e4
LT		 376 qla_printk(KERN_INFO, ha,
377 "Unrecoverable Hardware Error: adapter marked "
378 "OFFLINE!\n");
e315cd28 379 vha->flags.online = 0;
1da177e4 380 } else
e315cd28 381 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 382 break;
383
384 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
385 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n",
e315cd28 386 vha->host_no));
1da177e4
LT		 387 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n");
388
e315cd28 389 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 390 break;
391
392 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
393 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n",
e315cd28 394 vha->host_no));
1da177e4
LT		 395 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n");
396
e315cd28 397 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 398 break;
399
400 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
401 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n",
e315cd28 402 vha->host_no));
1da177e4
LT		 403 break;
404
405 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
e315cd28 406 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no,
1da177e4 407 mb[1]));
cc3ef7bc 408 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]);
1da177e4 409
e315cd28
AC		 410 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
411 atomic_set(&vha->loop_state, LOOP_DOWN);
412 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
413 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 414 }
415
e315cd28
AC		 416 if (vha->vp_idx) {
417 atomic_set(&vha->vp_state, VP_FAILED);
418 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 419 }
420
e315cd28
AC		 421 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
422 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
1da177e4 423
e315cd28
AC		 424 vha->flags.management_server_logged_in = 0;
425 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
1da177e4
LT		 426 break;
427
428 case MBA_LOOP_UP: /* Loop Up Event */
1da177e4
LT		 429 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
430 link_speed = link_speeds[0];
d8b45213 431 ha->link_data_rate = PORT_SPEED_1GB;
1da177e4 432 } else {
9a853f71 433 link_speed = link_speeds[LS_UNKNOWN];
1da177e4
LT		 434 if (mb[1] < 5)
435 link_speed = link_speeds[mb[1]];
436 ha->link_data_rate = mb[1];
437 }
438
439 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n",
e315cd28 440 vha->host_no, link_speed));
1da177e4
LT		 441 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n",
442 link_speed);
443
e315cd28
AC		 444 vha->flags.management_server_logged_in = 0;
445 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
1da177e4
LT		 446 break;
447
448 case MBA_LOOP_DOWN: /* Loop Down Event */
4d4df193 449 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN "
e315cd28 450 "(%x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3]));
4d4df193
HK		 451 qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x %x %x).\n",
452 mb[1], mb[2], mb[3]);
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 vha->device_flags |= DFLG_NO_CABLE;
458 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 459 }
460
e315cd28
AC		 461 if (vha->vp_idx) {
462 atomic_set(&vha->vp_state, VP_FAILED);
463 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 464 }
465
e315cd28 466 vha->flags.management_server_logged_in = 0;
d8b45213 467 ha->link_data_rate = PORT_SPEED_UNKNOWN;
e315cd28 468 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
1da177e4
LT		 469 break;
470
471 case MBA_LIP_RESET: /* LIP reset occurred */
1da177e4 472 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n",
e315cd28 473 vha->host_no, mb[1]));
1da177e4 474 qla_printk(KERN_INFO, ha,
cc3ef7bc 475 "LIP reset occurred (%x).\n", mb[1]);
1da177e4 476
e315cd28
AC		 477 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
478 atomic_set(&vha->loop_state, LOOP_DOWN);
479 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
480 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 481 }
482
e315cd28
AC		 483 if (vha->vp_idx) {
484 atomic_set(&vha->vp_state, VP_FAILED);
485 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 486 }
487
e315cd28 488 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
1da177e4
LT		 489
490 ha->operating_mode = LOOP;
e315cd28
AC		 491 vha->flags.management_server_logged_in = 0;
492 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
1da177e4
LT		 493 break;
494
495 case MBA_POINT_TO_POINT: /* Point-to-Point */
496 if (IS_QLA2100(ha))
497 break;
498
499 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n",
e315cd28 500 vha->host_no));
1da177e4
LT		 501
502 /*
503 * Until there's a transition from loop down to loop up, treat
504 * this as loop down only.
505 */
e315cd28
AC		 506 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
507 atomic_set(&vha->loop_state, LOOP_DOWN);
508 if (!atomic_read(&vha->loop_down_timer))
509 atomic_set(&vha->loop_down_timer,
1da177e4 510 LOOP_DOWN_TIME);
e315cd28 511 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 512 }
513
e315cd28
AC		 514 if (vha->vp_idx) {
515 atomic_set(&vha->vp_state, VP_FAILED);
516 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 517 }
518
e315cd28
AC		 519 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
520 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
521
522 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
523 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
4346b149
AV		 524
525 ha->flags.gpsc_supported = 1;
e315cd28 526 vha->flags.management_server_logged_in = 0;
1da177e4
LT		 527 break;
528
529 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
530 if (IS_QLA2100(ha))
531 break;
532
1da177e4
LT		 533 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection "
534 "received.\n",
e315cd28 535 vha->host_no));
1da177e4
LT		 536 qla_printk(KERN_INFO, ha,
537 "Configuration change detected: value=%x.\n", mb[1]);
538
e315cd28
AC		 539 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
540 atomic_set(&vha->loop_state, LOOP_DOWN);
541 if (!atomic_read(&vha->loop_down_timer))
542 atomic_set(&vha->loop_down_timer,
1da177e4 543 LOOP_DOWN_TIME);
e315cd28 544 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4
LT		 545 }
546
e315cd28
AC		 547 if (vha->vp_idx) {
548 atomic_set(&vha->vp_state, VP_FAILED);
549 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
2c3dfe3f
SJ		 550 }
551
e315cd28
AC		 552 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
553 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 554 break;
555
556 case MBA_PORT_UPDATE: /* Port database update */
73208dfd
AC		 557 /* Only handle SCNs for our Vport index. */
558 if (vha->vp_idx && vha->vp_idx != (mb[3] & 0xff))
559 break;
560
1da177e4 561 /*
cc3ef7bc 562 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1da177e4
LT		 563 * event etc. earlier indicating loop is down) then process
564 * it. Otherwise ignore it and Wait for RSCN to come in.
565 */
e315cd28
AC		 566 atomic_set(&vha->loop_down_timer, 0);
567 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
568 atomic_read(&vha->loop_state) != LOOP_DEAD) {
1da177e4 569 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE "
e315cd28 570 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1],
9a853f71 571 mb[2], mb[3]));
1da177e4
LT		 572 break;
573 }
574
575 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n",
e315cd28 576 vha->host_no));
1da177e4 577 DEBUG(printk(KERN_INFO
9a853f71 578 "scsi(%ld): Port database changed %04x %04x %04x.\n",
e315cd28 579 vha->host_no, mb[1], mb[2], mb[3]));
1da177e4
LT		 580
581 /*
582 * Mark all devices as missing so we will login again.
583 */
e315cd28 584 atomic_set(&vha->loop_state, LOOP_UP);
1da177e4 585
e315cd28 586 qla2x00_mark_all_devices_lost(vha, 1);
1da177e4 587
e315cd28 588 vha->flags.rscn_queue_overflow = 1;
1da177e4 589
e315cd28
AC		 590 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
591 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1da177e4
LT		 592 break;
593
594 case MBA_RSCN_UPDATE: /* State Change Registration */
3c397400 595 /* Check if the Vport has issued a SCR */
e315cd28 596 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
3c397400
SJ		 597 break;
598 /* Only handle SCNs for our Vport index. */
e315cd28 599 if (vha->vp_idx && vha->vp_idx != (mb[3] & 0xff))
3c397400 600 break;
1da177e4 601 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
e315cd28 602 vha->host_no));
1da177e4 603 DEBUG(printk(KERN_INFO
f4a8dbc7 604 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
e315cd28 605 vha->host_no, mb[1], mb[2], mb[3]));
1da177e4 606
59d72d87 607 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
e315cd28
AC		 608 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
609 | vha->d_id.b.al_pa;
1da177e4
LT		 610 if (rscn_entry == host_pid) {
611 DEBUG(printk(KERN_INFO
612 "scsi(%ld): Ignoring RSCN update to local host "
613 "port ID (%06x)\n",
e315cd28 614 vha->host_no, host_pid));
1da177e4
LT		 615 break;
616 }
617
59d72d87
RA		 618 /* Ignore reserved bits from RSCN-payload. */
619 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
e315cd28 620 rscn_queue_index = vha->rscn_in_ptr + 1;
1da177e4
LT		 621 if (rscn_queue_index == MAX_RSCN_COUNT)
622 rscn_queue_index = 0;
e315cd28
AC		 623 if (rscn_queue_index != vha->rscn_out_ptr) {
624 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry;
625 vha->rscn_in_ptr = rscn_queue_index;
1da177e4 626 } else {
e315cd28 627 vha->flags.rscn_queue_overflow = 1;
1da177e4
LT		 628 }
629
e315cd28
AC		 630 atomic_set(&vha->loop_state, LOOP_UPDATE);
631 atomic_set(&vha->loop_down_timer, 0);
632 vha->flags.management_server_logged_in = 0;
1da177e4 633
e315cd28
AC		 634 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
635 set_bit(RSCN_UPDATE, &vha->dpc_flags);
636 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1da177e4
LT		 637 break;
638
639 /* case MBA_RIO_RESPONSE: */
640 case MBA_ZIO_RESPONSE:
3fd67cdf 641 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n",
e315cd28 642 vha->host_no));
1da177e4 643
e428924c 644 if (IS_FWI2_CAPABLE(ha))
73208dfd 645 qla24xx_process_response_queue(rsp);
4fdfefe5 646 else
73208dfd 647 qla2x00_process_response_queue(rsp);
1da177e4 648 break;
9a853f71
AV		 649
650 case MBA_DISCARD_RND_FRAME:
651 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x "
e315cd28 652 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3]));
9a853f71 653 break;
45ebeb56
AV		 654
655 case MBA_TRACE_NOTIFICATION:
656 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n",
e315cd28 657 vha->host_no, mb[1], mb[2]));
45ebeb56 658 break;
4d4df193
HK		 659
660 case MBA_ISP84XX_ALERT:
661 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- "
e315cd28 662 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3]));
4d4df193
HK		 663
664 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
665 switch (mb[1]) {
666 case A84_PANIC_RECOVERY:
667 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery "
668 "%04x %04x\n", mb[2], mb[3]);
669 break;
670 case A84_OP_LOGIN_COMPLETE:
671 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
672 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
673 "firmware version %x\n", ha->cs84xx->op_fw_version));
674 break;
675 case A84_DIAG_LOGIN_COMPLETE:
676 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
677 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:"
678 "diagnostic firmware version %x\n",
679 ha->cs84xx->diag_fw_version));
680 break;
681 case A84_GOLD_LOGIN_COMPLETE:
682 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
683 ha->cs84xx->fw_update = 1;
684 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold "
685 "firmware version %x\n",
686 ha->cs84xx->gold_fw_version));
687 break;
688 default:
689 qla_printk(KERN_ERR, ha,
690 "Alert 84xx: Invalid Alert %04x %04x %04x\n",
691 mb[1], mb[2], mb[3]);
692 }
693 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
694 break;
1da177e4 695 }
2c3dfe3f 696
e315cd28 697 if (!vha->vp_idx && ha->num_vhosts)
73208dfd 698 qla2x00_alert_all_vps(rsp, mb);
1da177e4
LT		 699}
700
df7baa50
AV		 701static void
702qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data)
703{
704 fc_port_t *fcport = data;
73208dfd
AC		 705 struct scsi_qla_host *vha = fcport->vha;
706 struct qla_hw_data *ha = vha->hw;
707 struct req_que *req = NULL;
708
709 req = ha->req_q_map[vha->req_ques[0]];
710 if (!req)
711 return;
712 if (req->max_q_depth <= sdev->queue_depth)
df7baa50
AV		 713 return;
714
715 if (sdev->ordered_tags)
716 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG,
717 sdev->queue_depth + 1);
718 else
719 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG,
720 sdev->queue_depth + 1);
721
722 fcport->last_ramp_up = jiffies;
723
e315cd28 724 DEBUG2(qla_printk(KERN_INFO, ha,
df7baa50 725 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n",
e315cd28 726 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
df7baa50
AV		 727 sdev->queue_depth));
728}
729
730static void
731qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data)
732{
733 fc_port_t *fcport = data;
734
735 if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1))
736 return;
737
e315cd28 738 DEBUG2(qla_printk(KERN_INFO, fcport->vha->hw,
df7baa50 739 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n",
e315cd28 740 fcport->vha->host_no, sdev->channel, sdev->id, sdev->lun,
df7baa50
AV		 741 sdev->queue_depth));
742}
743
744static inline void
73208dfd
AC		 745qla2x00_ramp_up_queue_depth(scsi_qla_host_t *vha, struct req_que *req,
746 srb_t *sp)
df7baa50
AV		 747{
748 fc_port_t *fcport;
749 struct scsi_device *sdev;
750
751 sdev = sp->cmd->device;
73208dfd 752 if (sdev->queue_depth >= req->max_q_depth)
df7baa50
AV		 753 return;
754
755 fcport = sp->fcport;
756 if (time_before(jiffies,
757 fcport->last_ramp_up + ql2xqfullrampup * HZ))
758 return;
759 if (time_before(jiffies,
760 fcport->last_queue_full + ql2xqfullrampup * HZ))
761 return;
762
df7baa50
AV		 763 starget_for_each_device(sdev->sdev_target, fcport,
764 qla2x00_adjust_sdev_qdepth_up);
df7baa50
AV		 765}
766
1da177e4
LT		 767/**
768 * qla2x00_process_completed_request() - Process a Fast Post response.
769 * @ha: SCSI driver HA context
770 * @index: SRB index
771 */
772static void
73208dfd
AC		 773qla2x00_process_completed_request(struct scsi_qla_host *vha,
774 struct req_que *req, uint32_t index)
1da177e4
LT		 775{
776 srb_t *sp;
e315cd28 777 struct qla_hw_data *ha = vha->hw;
1da177e4
LT		 778
779 /* Validate handle. */
780 if (index >= MAX_OUTSTANDING_COMMANDS) {
781 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n",
e315cd28 782 vha->host_no, index));
1da177e4
LT		 783 qla_printk(KERN_WARNING, ha,
784 "Invalid SCSI completion handle %d.\n", index);
785
e315cd28 786 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 787 return;
788 }
789
e315cd28 790 sp = req->outstanding_cmds[index];
1da177e4
LT		 791 if (sp) {
792 /* Free outstanding command slot. */
e315cd28 793 req->outstanding_cmds[index] = NULL;
1da177e4 794
1da177e4
LT		 795 CMD_COMPL_STATUS(sp->cmd) = 0L;
796 CMD_SCSI_STATUS(sp->cmd) = 0L;
797
798 /* Save ISP completion status */
799 sp->cmd->result = DID_OK << 16;
df7baa50 800
73208dfd
AC		 801 qla2x00_ramp_up_queue_depth(vha, req, sp);
802 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 803 } else {
804 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n",
e315cd28 805 vha->host_no));
1da177e4
LT		 806 qla_printk(KERN_WARNING, ha,
807 "Invalid ISP SCSI completion handle\n");
808
e315cd28 809 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1da177e4
LT		 810 }
811}
812
813/**
814 * qla2x00_process_response_queue() - Process response queue entries.
815 * @ha: SCSI driver HA context
816 */
817void
73208dfd 818qla2x00_process_response_queue(struct rsp_que *rsp)
1da177e4 819{
73208dfd
AC		 820 struct scsi_qla_host *vha;
821 struct qla_hw_data *ha = rsp->hw;
3d71644c 822 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1da177e4
LT		 823 sts_entry_t *pkt;
824 uint16_t handle_cnt;
825 uint16_t cnt;
73208dfd
AC		 826
827 vha = qla2x00_get_rsp_host(rsp);
1da177e4 828
e315cd28 829 if (!vha->flags.online)
1da177e4
LT		 830 return;
831
e315cd28
AC		 832 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
833 pkt = (sts_entry_t *)rsp->ring_ptr;
1da177e4 834
e315cd28
AC		 835 rsp->ring_index++;
836 if (rsp->ring_index == rsp->length) {
837 rsp->ring_index = 0;
838 rsp->ring_ptr = rsp->ring;
1da177e4 839 } else {
e315cd28 840 rsp->ring_ptr++;
1da177e4
LT		 841 }
842
843 if (pkt->entry_status != 0) {
844 DEBUG3(printk(KERN_INFO
e315cd28 845 "scsi(%ld): Process error entry.\n", vha->host_no));
1da177e4 846
73208dfd 847 qla2x00_error_entry(vha, rsp, pkt);
1da177e4
LT		 848 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
849 wmb();
850 continue;
851 }
852
853 switch (pkt->entry_type) {
854 case STATUS_TYPE:
73208dfd 855 qla2x00_status_entry(vha, rsp, pkt);
1da177e4
LT		 856 break;
857 case STATUS_TYPE_21:
858 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
859 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 860 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 861 ((sts21_entry_t *)pkt)->handle[cnt]);
862 }
863 break;
864 case STATUS_TYPE_22:
865 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
866 for (cnt = 0; cnt < handle_cnt; cnt++) {
73208dfd 867 qla2x00_process_completed_request(vha, rsp->req,
1da177e4
LT		 868 ((sts22_entry_t *)pkt)->handle[cnt]);
869 }
870 break;
871 case STATUS_CONT_TYPE:
e315cd28 872 qla2x00_status_cont_entry(vha, (sts_cont_entry_t *)pkt);
1da177e4 873 break;
1da177e4
LT		 874 default:
875 /* Type Not Supported. */
876 DEBUG4(printk(KERN_WARNING
877 "scsi(%ld): Received unknown response pkt type %x "
878 "entry status=%x.\n",
e315cd28 879 vha->host_no, pkt->entry_type, pkt->entry_status));
1da177e4
LT		 880 break;
881 }
882 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
883 wmb();
884 }
885
886 /* Adjust ring index */
e315cd28 887 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1da177e4
LT		 888}
889
4733fcb1
AV		 890static inline void
891qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len)
892{
893 struct scsi_cmnd *cp = sp->cmd;
894
895 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
896 sense_len = SCSI_SENSE_BUFFERSIZE;
897
898 CMD_ACTUAL_SNSLEN(cp) = sense_len;
899 sp->request_sense_length = sense_len;
900 sp->request_sense_ptr = cp->sense_buffer;
901 if (sp->request_sense_length > 32)
902 sense_len = 32;
903
904 memcpy(cp->sense_buffer, sense_data, sense_len);
905
906 sp->request_sense_ptr += sense_len;
907 sp->request_sense_length -= sense_len;
908 if (sp->request_sense_length != 0)
e315cd28 909 sp->fcport->vha->status_srb = sp;
4733fcb1
AV		 910
911 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) "
e315cd28 912 "cmd=%p pid=%ld\n", __func__, sp->fcport->vha->host_no,
19851f13
AV		 913 cp->device->channel, cp->device->id, cp->device->lun, cp,
914 cp->serial_number));
4733fcb1
AV		 915 if (sense_len)
916 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer,
917 CMD_ACTUAL_SNSLEN(cp)));
918}
919
1da177e4
LT		 920/**
921 * qla2x00_status_entry() - Process a Status IOCB entry.
922 * @ha: SCSI driver HA context
923 * @pkt: Entry pointer
924 */
925static void
73208dfd 926qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1da177e4 927{
1da177e4 928 srb_t *sp;
1da177e4
LT		 929 fc_port_t *fcport;
930 struct scsi_cmnd *cp;
9a853f71
AV		 931 sts_entry_t *sts;
932 struct sts_entry_24xx *sts24;
1da177e4
LT		 933 uint16_t comp_status;
934 uint16_t scsi_status;
935 uint8_t lscsi_status;
936 int32_t resid;
ed17c71b 937 uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len;
9a853f71 938 uint8_t *rsp_info, *sense_data;
e315cd28 939 struct qla_hw_data *ha = vha->hw;
73208dfd 940 struct req_que *req = rsp->req;
9a853f71
AV		 941
942 sts = (sts_entry_t *) pkt;
943 sts24 = (struct sts_entry_24xx *) pkt;
e428924c 944 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 945 comp_status = le16_to_cpu(sts24->comp_status);
946 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
947 } else {
948 comp_status = le16_to_cpu(sts->comp_status);
949 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
950 }
1da177e4
LT		 951
952 /* Fast path completion. */
9a853f71 953 if (comp_status == CS_COMPLETE && scsi_status == 0) {
73208dfd 954 qla2x00_process_completed_request(vha, req, sts->handle);
1da177e4
LT		 955
956 return;
957 }
958
959 /* Validate handle. */
9a853f71 960 if (sts->handle < MAX_OUTSTANDING_COMMANDS) {
e315cd28
AC		 961 sp = req->outstanding_cmds[sts->handle];
962 req->outstanding_cmds[sts->handle] = NULL;
1da177e4
LT		 963 } else
964 sp = NULL;
965
966 if (sp == NULL) {
967 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n",
e315cd28 968 vha->host_no));
1da177e4
LT		 969 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n");
970
e315cd28
AC		 971 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
972 qla2xxx_wake_dpc(vha);
1da177e4
LT		 973 return;
974 }
975 cp = sp->cmd;
976 if (cp == NULL) {
977 DEBUG2(printk("scsi(%ld): Command already returned back to OS "
e315cd28 978 "pkt->handle=%d sp=%p.\n", vha->host_no, sts->handle, sp));
1da177e4
LT		 979 qla_printk(KERN_WARNING, ha,
980 "Command is NULL: already returned to OS (sp=%p)\n", sp);
981
982 return;
983 }
984
9a853f71
AV		 985 lscsi_status = scsi_status & STATUS_MASK;
986 CMD_ENTRY_STATUS(cp) = sts->entry_status;
1da177e4
LT		 987 CMD_COMPL_STATUS(cp) = comp_status;
988 CMD_SCSI_STATUS(cp) = scsi_status;
989
bdf79621 990 fcport = sp->fcport;
1da177e4 991
ed17c71b 992 sense_len = rsp_info_len = resid_len = fw_resid_len = 0;
e428924c 993 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 994 sense_len = le32_to_cpu(sts24->sense_len);
995 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
996 resid_len = le32_to_cpu(sts24->rsp_residual_count);
ed17c71b 997 fw_resid_len = le32_to_cpu(sts24->residual_len);
9a853f71
AV		 998 rsp_info = sts24->data;
999 sense_data = sts24->data;
1000 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1001 } else {
1002 sense_len = le16_to_cpu(sts->req_sense_length);
1003 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1004 resid_len = le32_to_cpu(sts->residual_length);
1005 rsp_info = sts->rsp_info;
1006 sense_data = sts->req_sense_data;
1007 }
1008
1da177e4
LT		 1009 /* Check for any FCP transport errors. */
1010 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
9a853f71 1011 /* Sense data lies beyond any FCP RESPONSE data. */
e428924c 1012 if (IS_FWI2_CAPABLE(ha))
9a853f71
AV		 1013 sense_data += rsp_info_len;
1014 if (rsp_info_len > 3 && rsp_info[3]) {
1da177e4
LT		 1015 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol "
1016 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..."
e315cd28 1017 "retrying command\n", vha->host_no,
9a853f71
AV		 1018 cp->device->channel, cp->device->id,
1019 cp->device->lun, rsp_info_len, rsp_info[0],
1020 rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4],
1021 rsp_info[5], rsp_info[6], rsp_info[7]));
1da177e4
LT		 1022
1023 cp->result = DID_BUS_BUSY << 16;
73208dfd 1024 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1025 return;
1026 }
1027 }
1028
3e8ce320
AV		 1029 /* Check for overrun. */
1030 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
1031 scsi_status & SS_RESIDUAL_OVER)
1032 comp_status = CS_DATA_OVERRUN;
1033
1da177e4
LT		 1034 /*
1035 * Based on Host and scsi status generate status code for Linux
1036 */
1037 switch (comp_status) {
1038 case CS_COMPLETE:
df7baa50 1039 case CS_QUEUE_FULL:
1da177e4
LT		 1040 if (scsi_status == 0) {
1041 cp->result = DID_OK << 16;
1042 break;
1043 }
1044 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
9a853f71 1045 resid = resid_len;
385d70b4 1046 scsi_set_resid(cp, resid);
1da177e4 1047 CMD_RESID_LEN(cp) = resid;
0da69df1
AV		 1048
1049 if (!lscsi_status &&
385d70b4 1050 ((unsigned)(scsi_bufflen(cp) - resid) <
0da69df1
AV		 1051 cp->underflow)) {
1052 qla_printk(KERN_INFO, ha,
385d70b4
FT		 1053 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1054 "detected (%x of %x bytes)...returning "
e315cd28 1055 "error status.\n", vha->host_no,
385d70b4
FT		 1056 cp->device->channel, cp->device->id,
1057 cp->device->lun, resid,
1058 scsi_bufflen(cp));
0da69df1
AV		 1059
1060 cp->result = DID_ERROR << 16;
1061 break;
1062 }
1da177e4 1063 }
1da177e4
LT		 1064 cp->result = DID_OK << 16 | lscsi_status;
1065
df7baa50
AV		 1066 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1067 DEBUG2(printk(KERN_INFO
1068 "scsi(%ld): QUEUE FULL status detected "
e315cd28 1069 "0x%x-0x%x.\n", vha->host_no, comp_status,
df7baa50
AV		 1070 scsi_status));
1071
1072 /* Adjust queue depth for all luns on the port. */
1073 fcport->last_queue_full = jiffies;
df7baa50
AV		 1074 starget_for_each_device(cp->device->sdev_target,
1075 fcport, qla2x00_adjust_sdev_qdepth_down);
df7baa50
AV		 1076 break;
1077 }
1da177e4
LT		 1078 if (lscsi_status != SS_CHECK_CONDITION)
1079 break;
1080
b80ca4f7 1081 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1082 if (!(scsi_status & SS_SENSE_LEN_VALID))
1083 break;
1084
4733fcb1 1085 qla2x00_handle_sense(sp, sense_data, sense_len);
1da177e4
LT		 1086 break;
1087
1088 case CS_DATA_UNDERRUN:
9a853f71 1089 resid = resid_len;
ed17c71b 1090 /* Use F/W calculated residual length. */
6acf8190 1091 if (IS_FWI2_CAPABLE(ha)) {
2d136938
AV		 1092 if (!(scsi_status & SS_RESIDUAL_UNDER)) {
1093 lscsi_status = 0;
1094 } else if (resid != fw_resid_len) {
6acf8190
AV		 1095 scsi_status &= ~SS_RESIDUAL_UNDER;
1096 lscsi_status = 0;
1097 }
ed17c71b 1098 resid = fw_resid_len;
6acf8190 1099 }
ed17c71b 1100
1da177e4 1101 if (scsi_status & SS_RESIDUAL_UNDER) {
385d70b4 1102 scsi_set_resid(cp, resid);
1da177e4 1103 CMD_RESID_LEN(cp) = resid;
e038a1be 1104 } else {
1105 DEBUG2(printk(KERN_INFO
1106 "scsi(%ld:%d:%d) UNDERRUN status detected "
ed17c71b 1107 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x "
e315cd28 1108 "os_underflow=0x%x\n", vha->host_no,
ed17c71b
RA		 1109 cp->device->id, cp->device->lun, comp_status,
1110 scsi_status, resid_len, resid, cp->cmnd[0],
1111 cp->underflow));
e038a1be 1112
1da177e4
LT		 1113 }
1114
1115 /*
fa2a1ce5 1116 * Check to see if SCSI Status is non zero. If so report SCSI
1da177e4
LT		 1117 * Status.
1118 */
1119 if (lscsi_status != 0) {
1da177e4
LT		 1120 cp->result = DID_OK << 16 | lscsi_status;
1121
ffec28a3
AV		 1122 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
1123 DEBUG2(printk(KERN_INFO
1124 "scsi(%ld): QUEUE FULL status detected "
e315cd28 1125 "0x%x-0x%x.\n", vha->host_no, comp_status,
ffec28a3
AV		 1126 scsi_status));
1127
1128 /*
1129 * Adjust queue depth for all luns on the
1130 * port.
1131 */
1132 fcport->last_queue_full = jiffies;
1133 starget_for_each_device(
1134 cp->device->sdev_target, fcport,
1135 qla2x00_adjust_sdev_qdepth_down);
1136 break;
1137 }
1da177e4
LT		 1138 if (lscsi_status != SS_CHECK_CONDITION)
1139 break;
1140
b80ca4f7 1141 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
1da177e4
LT		 1142 if (!(scsi_status & SS_SENSE_LEN_VALID))
1143 break;
1144
4733fcb1 1145 qla2x00_handle_sense(sp, sense_data, sense_len);
1da177e4
LT		 1146 } else {
1147 /*
1148 * If RISC reports underrun and target does not report
1149 * it then we must have a lost frame, so tell upper
1150 * layer to retry it by reporting a bus busy.
1151 */
1152 if (!(scsi_status & SS_RESIDUAL_UNDER)) {
1153 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped "
385d70b4 1154 "frame(s) detected (%x of %x bytes)..."
e315cd28
AC		 1155 "retrying command.\n",
1156 vha->host_no, cp->device->channel,
1157 cp->device->id, cp->device->lun, resid,
1158 scsi_bufflen(cp)));
1da177e4
LT		 1159
1160 cp->result = DID_BUS_BUSY << 16;
1da177e4
LT		 1161 break;
1162 }
1163
1164 /* Handle mid-layer underflow */
385d70b4 1165 if ((unsigned)(scsi_bufflen(cp) - resid) <
1da177e4
LT		 1166 cp->underflow) {
1167 qla_printk(KERN_INFO, ha,
385d70b4
FT		 1168 "scsi(%ld:%d:%d:%d): Mid-layer underflow "
1169 "detected (%x of %x bytes)...returning "
e315cd28 1170 "error status.\n", vha->host_no,
385d70b4
FT		 1171 cp->device->channel, cp->device->id,
1172 cp->device->lun, resid,
1173 scsi_bufflen(cp));
1da177e4
LT		 1174
1175 cp->result = DID_ERROR << 16;
1176 break;
1177 }
1178
1179 /* Everybody online, looking good... */
1180 cp->result = DID_OK << 16;
1181 }
1182 break;
1183
1184 case CS_DATA_OVERRUN:
1185 DEBUG2(printk(KERN_INFO
1186 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n",
e315cd28 1187 vha->host_no, cp->device->id, cp->device->lun, comp_status,
9a853f71 1188 scsi_status));
1da177e4
LT		 1189 DEBUG2(printk(KERN_INFO
1190 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
1191 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
1192 cp->cmnd[4], cp->cmnd[5]));
1193 DEBUG2(printk(KERN_INFO
1194 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR "
1195 "status!\n",
385d70b4 1196 cp->serial_number, scsi_bufflen(cp), resid_len));
1da177e4
LT		 1197
1198 cp->result = DID_ERROR << 16;
1199 break;
1200
1201 case CS_PORT_LOGGED_OUT:
1202 case CS_PORT_CONFIG_CHG:
1203 case CS_PORT_BUSY:
1204 case CS_INCOMPLETE:
1205 case CS_PORT_UNAVAILABLE:
1206 /*
1207 * If the port is in Target Down state, return all IOs for this
1208 * Target with DID_NO_CONNECT ELSE Queue the IOs in the
1209 * retry_queue.
1210 */
1da177e4
LT		 1211 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down "
1212 "pid=%ld, compl status=0x%x, port state=0x%x\n",
e315cd28 1213 vha->host_no, cp->device->id, cp->device->lun,
9a853f71 1214 cp->serial_number, comp_status,
1da177e4
LT		 1215 atomic_read(&fcport->state)));
1216
056a4483
MC		 1217 /*
1218 * We are going to have the fc class block the rport
1219 * while we try to recover so instruct the mid layer
1220 * to requeue until the class decides how to handle this.
1221 */
1222 cp->result = DID_TRANSPORT_DISRUPTED << 16;
a7a28504 1223 if (atomic_read(&fcport->state) == FCS_ONLINE)
e315cd28 1224 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1da177e4
LT		 1225 break;
1226
1227 case CS_RESET:
1228 DEBUG2(printk(KERN_INFO
1229 "scsi(%ld): RESET status detected 0x%x-0x%x.\n",
e315cd28 1230 vha->host_no, comp_status, scsi_status));
1da177e4 1231
f4f051eb 1232 cp->result = DID_RESET << 16;
1da177e4
LT		 1233 break;
1234
1235 case CS_ABORTED:
fa2a1ce5 1236 /*
1da177e4
LT		 1237 * hv2.19.12 - DID_ABORT does not retry the request if we
1238 * aborted this request then abort otherwise it must be a
1239 * reset.
1240 */
1241 DEBUG2(printk(KERN_INFO
1242 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n",
e315cd28 1243 vha->host_no, comp_status, scsi_status));
1da177e4
LT		 1244
1245 cp->result = DID_RESET << 16;
1246 break;
1247
1248 case CS_TIMEOUT:
056a4483
MC		 1249 /*
1250 * We are going to have the fc class block the rport
1251 * while we try to recover so instruct the mid layer
1252 * to requeue until the class decides how to handle this.
1253 */
1254 cp->result = DID_TRANSPORT_DISRUPTED << 16;
9a853f71 1255
e428924c 1256 if (IS_FWI2_CAPABLE(ha)) {
9a853f71
AV		 1257 DEBUG2(printk(KERN_INFO
1258 "scsi(%ld:%d:%d:%d): TIMEOUT status detected "
e315cd28 1259 "0x%x-0x%x\n", vha->host_no, cp->device->channel,
9a853f71
AV		 1260 cp->device->id, cp->device->lun, comp_status,
1261 scsi_status));
1262 break;
1263 }
1da177e4
LT		 1264 DEBUG2(printk(KERN_INFO
1265 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x "
e315cd28 1266 "sflags=%x.\n", vha->host_no, cp->device->channel,
9a853f71
AV		 1267 cp->device->id, cp->device->lun, comp_status, scsi_status,
1268 le16_to_cpu(sts->status_flags)));
1da177e4 1269
9a853f71
AV		 1270 /* Check to see if logout occurred. */
1271 if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT))
e315cd28 1272 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1da177e4
LT		 1273 break;
1274
1da177e4
LT		 1275 default:
1276 DEBUG3(printk("scsi(%ld): Error detected (unknown status) "
e315cd28 1277 "0x%x-0x%x.\n", vha->host_no, comp_status, scsi_status));
1da177e4
LT		 1278 qla_printk(KERN_INFO, ha,
1279 "Unknown status detected 0x%x-0x%x.\n",
1280 comp_status, scsi_status);
1281
1282 cp->result = DID_ERROR << 16;
1283 break;
1284 }
1285
1286 /* Place command on done queue. */
e315cd28 1287 if (vha->status_srb == NULL)
73208dfd 1288 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1289}
1290
1291/**
1292 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
1293 * @ha: SCSI driver HA context
1294 * @pkt: Entry pointer
1295 *
1296 * Extended sense data.
1297 */
1298static void
e315cd28 1299qla2x00_status_cont_entry(scsi_qla_host_t *vha, sts_cont_entry_t *pkt)
1da177e4
LT		 1300{
1301 uint8_t sense_sz = 0;
e315cd28
AC		 1302 struct qla_hw_data *ha = vha->hw;
1303 srb_t *sp = vha->status_srb;
1da177e4
LT		 1304 struct scsi_cmnd *cp;
1305
1306 if (sp != NULL && sp->request_sense_length != 0) {
1307 cp = sp->cmd;
1308 if (cp == NULL) {
1309 DEBUG2(printk("%s(): Cmd already returned back to OS "
75bc4190 1310 "sp=%p.\n", __func__, sp));
1da177e4
LT		 1311 qla_printk(KERN_INFO, ha,
1312 "cmd is NULL: already returned to OS (sp=%p)\n",
fa2a1ce5 1313 sp);
1da177e4 1314
e315cd28 1315 vha->status_srb = NULL;
1da177e4
LT		 1316 return;
1317 }
1318
1319 if (sp->request_sense_length > sizeof(pkt->data)) {
1320 sense_sz = sizeof(pkt->data);
1321 } else {
1322 sense_sz = sp->request_sense_length;
1323 }
1324
1325 /* Move sense data. */
e428924c 1326 if (IS_FWI2_CAPABLE(ha))
9a853f71 1327 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
1da177e4
LT		 1328 memcpy(sp->request_sense_ptr, pkt->data, sense_sz);
1329 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz));
1330
1331 sp->request_sense_ptr += sense_sz;
1332 sp->request_sense_length -= sense_sz;
1333
1334 /* Place command on done queue. */
1335 if (sp->request_sense_length == 0) {
e315cd28 1336 vha->status_srb = NULL;
73208dfd 1337 qla2x00_sp_compl(ha, sp);
1da177e4
LT		 1338 }
1339 }
1340}
1341
1342/**
1343 * qla2x00_error_entry() - Process an error entry.
1344 * @ha: SCSI driver HA context
1345 * @pkt: Entry pointer
1346 */
1347static void
73208dfd 1348qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
1da177e4
LT		 1349{
1350 srb_t *sp;
e315cd28 1351 struct qla_hw_data *ha = vha->hw;
73208dfd 1352 struct req_que *req = rsp->req;
1da177e4
LT		 1353#if defined(QL_DEBUG_LEVEL_2)
1354 if (pkt->entry_status & RF_INV_E_ORDER)
1355 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__);
1356 else if (pkt->entry_status & RF_INV_E_COUNT)
1357 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__);
1358 else if (pkt->entry_status & RF_INV_E_PARAM)
fa2a1ce5 1359 qla_printk(KERN_ERR, ha,
1da177e4
LT		 1360 "%s: Invalid Entry Parameter\n", __func__);
1361 else if (pkt->entry_status & RF_INV_E_TYPE)
1362 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__);
1363 else if (pkt->entry_status & RF_BUSY)
1364 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__);
1365 else
1366 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__);
1367#endif
1368
1369 /* Validate handle. */
1370 if (pkt->handle < MAX_OUTSTANDING_COMMANDS)
e315cd28 1371 sp = req->outstanding_cmds[pkt->handle];
1da177e4
LT		 1372 else
1373 sp = NULL;
1374
1375 if (sp) {
1376 /* Free outstanding command slot. */
e315cd28 1377 req->outstanding_cmds[pkt->handle] = NULL;
354d6b21 1378
1da177e4
LT		 1379 /* Bad payload or header */
1380 if (pkt->entry_status &
1381 (RF_INV_E_ORDER | RF_INV_E_COUNT |
1382 RF_INV_E_PARAM | RF_INV_E_TYPE)) {
1383 sp->cmd->result = DID_ERROR << 16;
1384 } else if (pkt->entry_status & RF_BUSY) {
1385 sp->cmd->result = DID_BUS_BUSY << 16;
1386 } else {
1387 sp->cmd->result = DID_ERROR << 16;
1388 }
73208dfd 1389 qla2x00_sp_compl(ha, sp);
1da177e4 1390
9a853f71
AV		 1391 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
1392 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) {
1da177e4 1393 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n",
e315cd28 1394 vha->host_no));
1da177e4
LT		 1395 qla_printk(KERN_WARNING, ha,
1396 "Error entry - invalid handle\n");
1397
e315cd28
AC		 1398 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1399 qla2xxx_wake_dpc(vha);
1da177e4
LT		 1400 }
1401}
1402
9a853f71
AV		 1403/**
1404 * qla24xx_mbx_completion() - Process mailbox command completions.
1405 * @ha: SCSI driver HA context
1406 * @mb0: Mailbox0 register
1407 */
1408static void
e315cd28 1409qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
9a853f71
AV		 1410{
1411 uint16_t cnt;
1412 uint16_t __iomem *wptr;
e315cd28 1413 struct qla_hw_data *ha = vha->hw;
9a853f71
AV		 1414 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1415
1416 /* Load return mailbox registers. */
1417 ha->flags.mbox_int = 1;
1418 ha->mailbox_out[0] = mb0;
1419 wptr = (uint16_t __iomem *)&reg->mailbox1;
1420
1421 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
1422 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
1423 wptr++;
1424 }
1425
1426 if (ha->mcp) {
1427 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n",
e315cd28 1428 __func__, vha->host_no, ha->mcp->mb[0]));
9a853f71
AV		 1429 } else {
1430 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n",
e315cd28 1431 __func__, vha->host_no));
9a853f71
AV		 1432 }
1433}
1434
1435/**
1436 * qla24xx_process_response_queue() - Process response queue entries.
1437 * @ha: SCSI driver HA context
1438 */
1439void
73208dfd 1440qla24xx_process_response_queue(struct rsp_que *rsp)
9a853f71 1441{
73208dfd 1442 struct qla_hw_data *ha = rsp->hw;
9a853f71 1443 struct sts_entry_24xx *pkt;
73208dfd
AC		 1444 struct scsi_qla_host *vha;
1445
1446 vha = qla2x00_get_rsp_host(rsp);
9a853f71 1447
e315cd28 1448 if (!vha->flags.online)
9a853f71
AV		 1449 return;
1450
e315cd28
AC		 1451 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1452 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
9a853f71 1453
e315cd28
AC		 1454 rsp->ring_index++;
1455 if (rsp->ring_index == rsp->length) {
1456 rsp->ring_index = 0;
1457 rsp->ring_ptr = rsp->ring;
9a853f71 1458 } else {
e315cd28 1459 rsp->ring_ptr++;
9a853f71
AV		 1460 }
1461
1462 if (pkt->entry_status != 0) {
1463 DEBUG3(printk(KERN_INFO
e315cd28 1464 "scsi(%ld): Process error entry.\n", vha->host_no));
9a853f71 1465
73208dfd 1466 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
9a853f71
AV		 1467 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1468 wmb();
1469 continue;
1470 }
1471
1472 switch (pkt->entry_type) {
1473 case STATUS_TYPE:
73208dfd 1474 qla2x00_status_entry(vha, rsp, pkt);
9a853f71
AV		 1475 break;
1476 case STATUS_CONT_TYPE:
e315cd28 1477 qla2x00_status_cont_entry(vha, (sts_cont_entry_t *)pkt);
9a853f71 1478 break;
2c3dfe3f 1479 case VP_RPT_ID_IOCB_TYPE:
e315cd28 1480 qla24xx_report_id_acquisition(vha,
2c3dfe3f
SJ		 1481 (struct vp_rpt_id_entry_24xx *)pkt);
1482 break;
9a853f71
AV		 1483 default:
1484 /* Type Not Supported. */
1485 DEBUG4(printk(KERN_WARNING
1486 "scsi(%ld): Received unknown response pkt type %x "
1487 "entry status=%x.\n",
e315cd28 1488 vha->host_no, pkt->entry_type, pkt->entry_status));
9a853f71
AV		 1489 break;
1490 }
1491 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1492 wmb();
1493 }
1494
1495 /* Adjust ring index */
17d98630 1496 ha->isp_ops->wrt_rsp_reg(ha, rsp->id, rsp->ring_index);
9a853f71
AV		 1497}
1498
05236a05 1499static void
e315cd28 1500qla2xxx_check_risc_status(scsi_qla_host_t *vha)
05236a05
AV		 1501{
1502 int rval;
1503 uint32_t cnt;
e315cd28 1504 struct qla_hw_data *ha = vha->hw;
05236a05
AV		 1505 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1506
1507 if (!IS_QLA25XX(ha))
1508 return;
1509
1510 rval = QLA_SUCCESS;
1511 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
1512 RD_REG_DWORD(&reg->iobase_addr);
1513 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
1514 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
1515 rval == QLA_SUCCESS; cnt--) {
1516 if (cnt) {
1517 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
1518 udelay(10);
1519 } else
1520 rval = QLA_FUNCTION_TIMEOUT;
1521 }
1522 if (rval == QLA_SUCCESS)
1523 goto next_test;
1524
1525 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
1526 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
1527 rval == QLA_SUCCESS; cnt--) {
1528 if (cnt) {
1529 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
1530 udelay(10);
1531 } else
1532 rval = QLA_FUNCTION_TIMEOUT;
1533 }
1534 if (rval != QLA_SUCCESS)
1535 goto done;
1536
1537next_test:
1538 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
1539 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n");
1540
1541done:
1542 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
1543 RD_REG_DWORD(&reg->iobase_window);
1544}
1545
9a853f71
AV		 1546/**
1547 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
1548 * @irq:
1549 * @dev_id: SCSI driver HA context
9a853f71
AV		 1550 *
1551 * Called by system whenever the host adapter generates an interrupt.
1552 *
1553 * Returns handled flag.
1554 */
1555irqreturn_t
7d12e780 1556qla24xx_intr_handler(int irq, void *dev_id)
9a853f71 1557{
e315cd28
AC		 1558 scsi_qla_host_t *vha;
1559 struct qla_hw_data *ha;
9a853f71
AV		 1560 struct device_reg_24xx __iomem *reg;
1561 int status;
9a853f71
AV		 1562 unsigned long iter;
1563 uint32_t stat;
1564 uint32_t hccr;
1565 uint16_t mb[4];
e315cd28 1566 struct rsp_que *rsp;
9a853f71 1567
e315cd28
AC		 1568 rsp = (struct rsp_que *) dev_id;
1569 if (!rsp) {
9a853f71 1570 printk(KERN_INFO
e315cd28 1571 "%s(): NULL response queue pointer\n", __func__);
9a853f71
AV		 1572 return IRQ_NONE;
1573 }
1574
e315cd28 1575 ha = rsp->hw;
9a853f71
AV		 1576 reg = &ha->iobase->isp24;
1577 status = 0;
1578
c6952483 1579 spin_lock(&ha->hardware_lock);
e315cd28 1580 vha = qla2x00_get_rsp_host(rsp);
9a853f71
AV		 1581 for (iter = 50; iter--; ) {
1582 stat = RD_REG_DWORD(&reg->host_status);
1583 if (stat & HSRX_RISC_PAUSED) {
14e660e6
SJ		 1584 if (pci_channel_offline(ha->pdev))
1585 break;
1586
9a853f71
AV		 1587 hccr = RD_REG_DWORD(&reg->hccr);
1588
1589 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
1590 "Dumping firmware!\n", hccr);
05236a05 1591
e315cd28 1592 qla2xxx_check_risc_status(vha);
05236a05 1593
e315cd28
AC		 1594 ha->isp_ops->fw_dump(vha, 1);
1595 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
9a853f71
AV		 1596 break;
1597 } else if ((stat & HSRX_RISC_INT) == 0)
1598 break;
1599
1600 switch (stat & 0xff) {
1601 case 0x1:
1602 case 0x2:
1603 case 0x10:
1604 case 0x11:
e315cd28 1605 qla24xx_mbx_completion(vha, MSW(stat));
9a853f71
AV		 1606 status |= MBX_INTERRUPT;
1607
1608 break;
1609 case 0x12:
1610 mb[0] = MSW(stat);
1611 mb[1] = RD_REG_WORD(&reg->mailbox1);
1612 mb[2] = RD_REG_WORD(&reg->mailbox2);
1613 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 1614 qla2x00_async_event(vha, rsp, mb);
9a853f71
AV		 1615 break;
1616 case 0x13:
73208dfd
AC		 1617 case 0x14:
1618 qla24xx_process_response_queue(rsp);
9a853f71
AV		 1619 break;
1620 default:
1621 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1622 "(%d).\n",
e315cd28 1623 vha->host_no, stat & 0xff));
9a853f71
AV		 1624 break;
1625 }
1626 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
1627 RD_REG_DWORD_RELAXED(&reg->hccr);
1628 }
c6952483 1629 spin_unlock(&ha->hardware_lock);
9a853f71
AV		 1630
1631 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
1632 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
9a853f71 1633 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 1634 complete(&ha->mbx_intr_comp);
9a853f71
AV		 1635 }
1636
1637 return IRQ_HANDLED;
1638}
1639
a8488abe
AV		 1640static irqreturn_t
1641qla24xx_msix_rsp_q(int irq, void *dev_id)
1642{
e315cd28
AC		 1643 struct qla_hw_data *ha;
1644 struct rsp_que *rsp;
a8488abe 1645 struct device_reg_24xx __iomem *reg;
a8488abe 1646
e315cd28
AC		 1647 rsp = (struct rsp_que *) dev_id;
1648 if (!rsp) {
1649 printk(KERN_INFO
1650 "%s(): NULL response queue pointer\n", __func__);
1651 return IRQ_NONE;
1652 }
1653 ha = rsp->hw;
a8488abe
AV		 1654 reg = &ha->iobase->isp24;
1655
0e973a24 1656 spin_lock_irq(&ha->hardware_lock);
a8488abe 1657
73208dfd 1658 qla24xx_process_response_queue(rsp);
a8488abe 1659 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
a8488abe 1660
0e973a24 1661 spin_unlock_irq(&ha->hardware_lock);
a8488abe
AV		 1662
1663 return IRQ_HANDLED;
1664}
1665
73208dfd
AC		 1666static irqreturn_t
1667qla25xx_msix_rsp_q(int irq, void *dev_id)
1668{
1669 struct qla_hw_data *ha;
1670 struct rsp_que *rsp;
1671 struct device_reg_24xx __iomem *reg;
1672 uint16_t msix_disabled_hccr = 0;
1673
1674 rsp = (struct rsp_que *) dev_id;
1675 if (!rsp) {
1676 printk(KERN_INFO
1677 "%s(): NULL response queue pointer\n", __func__);
1678 return IRQ_NONE;
1679 }
1680 ha = rsp->hw;
1681 reg = &ha->iobase->isp24;
1682
1683 spin_lock_irq(&ha->hardware_lock);
1684
1685 msix_disabled_hccr = rsp->options;
1686 if (!rsp->id)
1687 msix_disabled_hccr &= __constant_cpu_to_le32(BIT_22);
1688 else
17d98630 1689 msix_disabled_hccr &= __constant_cpu_to_le32(BIT_6);
73208dfd
AC		 1690
1691 qla24xx_process_response_queue(rsp);
1692
1693 if (!msix_disabled_hccr)
1694 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
1695
1696 spin_unlock_irq(&ha->hardware_lock);
1697
1698 return IRQ_HANDLED;
1699}
1700
a8488abe
AV		 1701static irqreturn_t
1702qla24xx_msix_default(int irq, void *dev_id)
1703{
e315cd28
AC		 1704 scsi_qla_host_t *vha;
1705 struct qla_hw_data *ha;
1706 struct rsp_que *rsp;
a8488abe
AV		 1707 struct device_reg_24xx __iomem *reg;
1708 int status;
a8488abe
AV		 1709 uint32_t stat;
1710 uint32_t hccr;
1711 uint16_t mb[4];
1712
e315cd28
AC		 1713 rsp = (struct rsp_que *) dev_id;
1714 if (!rsp) {
1715 DEBUG(printk(
1716 "%s(): NULL response queue pointer\n", __func__));
1717 return IRQ_NONE;
1718 }
1719 ha = rsp->hw;
a8488abe
AV		 1720 reg = &ha->iobase->isp24;
1721 status = 0;
1722
0e973a24 1723 spin_lock_irq(&ha->hardware_lock);
e315cd28 1724 vha = qla2x00_get_rsp_host(rsp);
87f27015 1725 do {
a8488abe
AV		 1726 stat = RD_REG_DWORD(&reg->host_status);
1727 if (stat & HSRX_RISC_PAUSED) {
14e660e6
SJ		 1728 if (pci_channel_offline(ha->pdev))
1729 break;
1730
a8488abe
AV		 1731 hccr = RD_REG_DWORD(&reg->hccr);
1732
1733 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, "
1734 "Dumping firmware!\n", hccr);
05236a05 1735
e315cd28 1736 qla2xxx_check_risc_status(vha);
05236a05 1737
e315cd28
AC		 1738 ha->isp_ops->fw_dump(vha, 1);
1739 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
a8488abe
AV		 1740 break;
1741 } else if ((stat & HSRX_RISC_INT) == 0)
1742 break;
1743
1744 switch (stat & 0xff) {
1745 case 0x1:
1746 case 0x2:
1747 case 0x10:
1748 case 0x11:
e315cd28 1749 qla24xx_mbx_completion(vha, MSW(stat));
a8488abe
AV		 1750 status |= MBX_INTERRUPT;
1751
1752 break;
1753 case 0x12:
1754 mb[0] = MSW(stat);
1755 mb[1] = RD_REG_WORD(&reg->mailbox1);
1756 mb[2] = RD_REG_WORD(&reg->mailbox2);
1757 mb[3] = RD_REG_WORD(&reg->mailbox3);
73208dfd 1758 qla2x00_async_event(vha, rsp, mb);
a8488abe
AV		 1759 break;
1760 case 0x13:
73208dfd
AC		 1761 case 0x14:
1762 qla24xx_process_response_queue(rsp);
a8488abe
AV		 1763 break;
1764 default:
1765 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type "
1766 "(%d).\n",
e315cd28 1767 vha->host_no, stat & 0xff));
a8488abe
AV		 1768 break;
1769 }
1770 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
87f27015 1771 } while (0);
0e973a24 1772 spin_unlock_irq(&ha->hardware_lock);
a8488abe
AV		 1773
1774 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
1775 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
a8488abe 1776 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
0b05a1f0 1777 complete(&ha->mbx_intr_comp);
a8488abe
AV		 1778 }
1779
1780 return IRQ_HANDLED;
1781}
1782
1783/* Interrupt handling helpers. */
1784
1785struct qla_init_msix_entry {
1786 uint16_t entry;
1787 uint16_t index;
1788 const char *name;
476834c2 1789 irq_handler_t handler;
a8488abe
AV		 1790};
1791
73208dfd
AC		 1792static struct qla_init_msix_entry base_queue = {
1793 .entry = 0,
1794 .index = 0,
1795 .name = "qla2xxx (default)",
1796 .handler = qla24xx_msix_default,
1797};
1798
1799static struct qla_init_msix_entry base_rsp_queue = {
1800 .entry = 1,
1801 .index = 1,
1802 .name = "qla2xxx (rsp_q)",
1803 .handler = qla24xx_msix_rsp_q,
1804};
a8488abe 1805
73208dfd
AC		 1806static struct qla_init_msix_entry multi_rsp_queue = {
1807 .entry = 1,
1808 .index = 1,
1809 .name = "qla2xxx (multi_q)",
1810 .handler = qla25xx_msix_rsp_q,
a8488abe
AV		 1811};
1812
1813static void
e315cd28 1814qla24xx_disable_msix(struct qla_hw_data *ha)
a8488abe
AV		 1815{
1816 int i;
1817 struct qla_msix_entry *qentry;
1818
73208dfd
AC		 1819 for (i = 0; i < ha->msix_count; i++) {
1820 qentry = &ha->msix_entries[i];
a8488abe 1821 if (qentry->have_irq)
73208dfd 1822 free_irq(qentry->vector, qentry->rsp);
a8488abe
AV		 1823 }
1824 pci_disable_msix(ha->pdev);
73208dfd
AC		 1825 kfree(ha->msix_entries);
1826 ha->msix_entries = NULL;
1827 ha->flags.msix_enabled = 0;
a8488abe
AV		 1828}
1829
1830static int
73208dfd 1831qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe
AV		 1832{
1833 int i, ret;
73208dfd 1834 struct msix_entry *entries;
a8488abe 1835 struct qla_msix_entry *qentry;
73208dfd
AC		 1836 struct qla_init_msix_entry *msix_queue;
1837
1838 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
1839 GFP_KERNEL);
1840 if (!entries)
1841 return -ENOMEM;
a8488abe 1842
73208dfd
AC		 1843 for (i = 0; i < ha->msix_count; i++)
1844 entries[i].entry = i;
a8488abe 1845
73208dfd 1846 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
a8488abe
AV		 1847 if (ret) {
1848 qla_printk(KERN_WARNING, ha,
73208dfd
AC		 1849 "MSI-X: Failed to enable support -- %d/%d\n"
1850 " Retry with %d vectors\n", ha->msix_count, ret, ret);
1851 ha->msix_count = ret;
1852 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
1853 if (ret) {
1854 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable"
1855 " support, giving up -- %d/%d\n",
1856 ha->msix_count, ret);
1857 goto msix_out;
1858 }
1859 ha->max_queues = ha->msix_count - 1;
1860 }
1861 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
1862 ha->msix_count, GFP_KERNEL);
1863 if (!ha->msix_entries) {
1864 ret = -ENOMEM;
a8488abe
AV		 1865 goto msix_out;
1866 }
1867 ha->flags.msix_enabled = 1;
1868
73208dfd
AC		 1869 for (i = 0; i < ha->msix_count; i++) {
1870 qentry = &ha->msix_entries[i];
1871 qentry->vector = entries[i].vector;
1872 qentry->entry = entries[i].entry;
a8488abe 1873 qentry->have_irq = 0;
73208dfd 1874 qentry->rsp = NULL;
a8488abe
AV		 1875 }
1876
73208dfd
AC		 1877 /* Enable MSI-X for AENs for queue 0 */
1878 qentry = &ha->msix_entries[0];
1879 ret = request_irq(qentry->vector, base_queue.handler, 0,
1880 base_queue.name, rsp);
1881 if (ret) {
1882 qla_printk(KERN_WARNING, ha,
1883 "MSI-X: Unable to register handler -- %x/%d.\n",
1884 qentry->vector, ret);
1885 qla24xx_disable_msix(ha);
1886 goto msix_out;
1887 }
1888 qentry->have_irq = 1;
1889 qentry->rsp = rsp;
1890
1891 /* Enable MSI-X vector for response queue update for queue 0 */
1892 if (ha->max_queues > 1 && ha->mqiobase) {
1893 ha->mqenable = 1;
1894 msix_queue = &multi_rsp_queue;
1895 qla_printk(KERN_INFO, ha,
1896 "MQ enabled, Number of Queue Resources: %d \n",
1897 ha->max_queues);
1898 } else {
1899 ha->mqenable = 0;
1900 msix_queue = &base_rsp_queue;
1901 }
1902
1903 qentry = &ha->msix_entries[1];
1904 ret = request_irq(qentry->vector, msix_queue->handler, 0,
1905 msix_queue->name, rsp);
1906 if (ret) {
1907 qla_printk(KERN_WARNING, ha,
1908 "MSI-X: Unable to register handler -- %x/%d.\n",
1909 qentry->vector, ret);
1910 qla24xx_disable_msix(ha);
1911 ha->mqenable = 0;
1912 goto msix_out;
1913 }
1914 qentry->have_irq = 1;
1915 qentry->rsp = rsp;
1916
a8488abe 1917msix_out:
73208dfd 1918 kfree(entries);
a8488abe
AV		 1919 return ret;
1920}
1921
1922int
73208dfd 1923qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
a8488abe
AV		 1924{
1925 int ret;
963b0fdd 1926 device_reg_t __iomem *reg = ha->iobase;
a8488abe
AV		 1927
1928 /* If possible, enable MSI-X. */
4d4df193 1929 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha))
a8488abe
AV		 1930 goto skip_msix;
1931
e315cd28
AC		 1932 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX ||
1933 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) {
a8488abe 1934 DEBUG2(qla_printk(KERN_WARNING, ha,
e315cd28
AC		 1935 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n",
1936 ha->pdev->revision, ha->fw_attributes));
a8488abe
AV		 1937
1938 goto skip_msix;
1939 }
1940
da7429f9
AV		 1941 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
1942 (ha->pdev->subsystem_device == 0x7040 ||
1943 ha->pdev->subsystem_device == 0x7041 ||
1944 ha->pdev->subsystem_device == 0x1705)) {
1945 DEBUG2(qla_printk(KERN_WARNING, ha,
1946 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n",
1947 ha->pdev->subsystem_vendor,
1948 ha->pdev->subsystem_device));
1949
1950 goto skip_msi;
1951 }
1952
73208dfd 1953 ret = qla24xx_enable_msix(ha, rsp);
a8488abe
AV		 1954 if (!ret) {
1955 DEBUG2(qla_printk(KERN_INFO, ha,
1956 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision,
1957 ha->fw_attributes));
963b0fdd 1958 goto clear_risc_ints;
a8488abe
AV		 1959 }
1960 qla_printk(KERN_WARNING, ha,
1961 "MSI-X: Falling back-to INTa mode -- %d.\n", ret);
1962skip_msix:
cbedb601 1963
4d4df193 1964 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha))
cbedb601
AV		 1965 goto skip_msi;
1966
1967 ret = pci_enable_msi(ha->pdev);
1968 if (!ret) {
1969 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
1970 ha->flags.msi_enabled = 1;
1971 }
1972skip_msi:
1973
fd34f556 1974 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
e315cd28 1975 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, rsp);
963b0fdd 1976 if (ret) {
a8488abe
AV		 1977 qla_printk(KERN_WARNING, ha,
1978 "Failed to reserve interrupt %d already in use.\n",
1979 ha->pdev->irq);
963b0fdd
AV		 1980 goto fail;
1981 }
1982 ha->flags.inta_enabled = 1;
963b0fdd
AV		 1983clear_risc_ints:
1984
c6952483 1985 spin_lock_irq(&ha->hardware_lock);
963b0fdd
AV		 1986 if (IS_FWI2_CAPABLE(ha)) {
1987 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1988 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1989 } else {
1990 WRT_REG_WORD(&reg->isp.semaphore, 0);
1991 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1992 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
a8488abe 1993 }
c6952483 1994 spin_unlock_irq(&ha->hardware_lock);
a8488abe 1995
963b0fdd 1996fail:
a8488abe
AV		 1997 return ret;
1998}
1999
2000void
e315cd28 2001qla2x00_free_irqs(scsi_qla_host_t *vha)
a8488abe 2002{
e315cd28 2003 struct qla_hw_data *ha = vha->hw;
73208dfd 2004 struct rsp_que *rsp = ha->rsp_q_map[0];
a8488abe
AV		 2005
2006 if (ha->flags.msix_enabled)
2007 qla24xx_disable_msix(ha);
cbedb601 2008 else if (ha->flags.inta_enabled) {
e315cd28 2009 free_irq(ha->pdev->irq, rsp);
cbedb601
AV		 2010 pci_disable_msi(ha->pdev);
2011 }
a8488abe 2012}
e315cd28
AC		 2013
2014static struct scsi_qla_host *
2015qla2x00_get_rsp_host(struct rsp_que *rsp)
2016{
2017 srb_t *sp;
2018 struct qla_hw_data *ha = rsp->hw;
2019 struct scsi_qla_host *vha = NULL;
73208dfd
AC		 2020 struct sts_entry_24xx *pkt;
2021 struct req_que *req;
2022
2023 if (rsp->id) {
2024 pkt = (struct sts_entry_24xx *) rsp->ring_ptr;
2025 req = rsp->req;
2026 if (pkt && pkt->handle < MAX_OUTSTANDING_COMMANDS) {
2027 sp = req->outstanding_cmds[pkt->handle];
2028 if (sp)
444786d7 2029 vha = sp->fcport->vha;
73208dfd 2030 }
e315cd28
AC		 2031 }
2032 if (!vha)
73208dfd 2033 /* handle it in base queue */
e315cd28
AC		 2034 vha = pci_get_drvdata(ha->pdev);
2035
2036 return vha;
2037}
73208dfd
AC		 2038
2039int qla25xx_request_irq(struct rsp_que *rsp)
2040{
2041 struct qla_hw_data *ha = rsp->hw;
2042 struct qla_init_msix_entry *intr = &multi_rsp_queue;
2043 struct qla_msix_entry *msix = rsp->msix;
2044 int ret;
2045
2046 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
2047 if (ret) {
2048 qla_printk(KERN_WARNING, ha,
2049 "MSI-X: Unable to register handler -- %x/%d.\n",
2050 msix->vector, ret);
2051 return ret;
2052 }
2053 msix->have_irq = 1;
2054 msix->rsp = rsp;
2055 return ret;
2056}
2057
17d98630
AC		 2058void
2059qla25xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index)
2060{
2061 device_reg_t __iomem *reg = (void *) ha->mqiobase + QLA_QUE_PAGE * id;
2062 WRT_REG_DWORD(&reg->isp25mq.rsp_q_out, index);
2063}
2064
2065void
2066qla24xx_wrt_rsp_reg(struct qla_hw_data *ha, uint16_t id, uint16_t index)
2067{
2068 device_reg_t __iomem *reg = (void *) ha->iobase;
2069 WRT_REG_DWORD(&reg->isp24.rsp_q_out, index);
2070}
2071
Linux 6.x block layer and io_uring tree(s)