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x86, cpufeature: If we disable CLFLUSH, we should disable CLFLUSHOPT
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
blob9bc86b9e86b172145443d161e0715658df6acdc7
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include "qla_target.h"
9
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <scsi/scsi_tcq.h>
13 #include <scsi/scsi_bsg_fc.h>
14 #include <scsi/scsi_eh.h>
15
16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
20 sts_entry_t *);
21
22 /**
23 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
24 * @irq:
25 * @dev_id: SCSI driver HA context
26 *
27 * Called by system whenever the host adapter generates an interrupt.
28 *
29 * Returns handled flag.
30 */
31 irqreturn_t
32 qla2100_intr_handler(int irq, void *dev_id)
33 {
34 scsi_qla_host_t *vha;
35 struct qla_hw_data *ha;
36 struct device_reg_2xxx __iomem *reg;
37 int status;
38 unsigned long iter;
39 uint16_t hccr;
40 uint16_t mb[4];
41 struct rsp_que *rsp;
42 unsigned long flags;
43
44 rsp = (struct rsp_que *) dev_id;
45 if (!rsp) {
46 ql_log(ql_log_info, NULL, 0x505d,
47 "%s: NULL response queue pointer.\n", __func__);
48 return (IRQ_NONE);
49 }
50
51 ha = rsp->hw;
52 reg = &ha->iobase->isp;
53 status = 0;
54
55 spin_lock_irqsave(&ha->hardware_lock, flags);
56 vha = pci_get_drvdata(ha->pdev);
57 for (iter = 50; iter--; ) {
58 hccr = RD_REG_WORD(&reg->hccr);
59 /* Check for PCI disconnection */
60 if (hccr == 0xffff) {
61 /*
62 * Schedule this on the default system workqueue so that
63 * all the adapter workqueues and the DPC thread can be
64 * shutdown cleanly.
65 */
66 schedule_work(&ha->board_disable);
67 break;
68 }
69 if (hccr & HCCR_RISC_PAUSE) {
70 if (pci_channel_offline(ha->pdev))
71 break;
72
73 /*
74 * Issue a "HARD" reset in order for the RISC interrupt
75 * bit to be cleared. Schedule a big hammer to get
76 * out of the RISC PAUSED state.
77 */
78 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
79 RD_REG_WORD(&reg->hccr);
80
81 ha->isp_ops->fw_dump(vha, 1);
82 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
83 break;
84 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
85 break;
86
87 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
88 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
89 RD_REG_WORD(&reg->hccr);
90
91 /* Get mailbox data. */
92 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
93 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
94 qla2x00_mbx_completion(vha, mb[0]);
95 status |= MBX_INTERRUPT;
96 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
97 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
98 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
99 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
100 qla2x00_async_event(vha, rsp, mb);
101 } else {
102 /*EMPTY*/
103 ql_dbg(ql_dbg_async, vha, 0x5025,
104 "Unrecognized interrupt type (%d).\n",
105 mb[0]);
106 }
107 /* Release mailbox registers. */
108 WRT_REG_WORD(&reg->semaphore, 0);
109 RD_REG_WORD(&reg->semaphore);
110 } else {
111 qla2x00_process_response_queue(rsp);
112
113 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
114 RD_REG_WORD(&reg->hccr);
115 }
116 }
117 qla2x00_handle_mbx_completion(ha, status);
118 spin_unlock_irqrestore(&ha->hardware_lock, flags);
119
120 return (IRQ_HANDLED);
121 }
122
123 bool
124 qla2x00_check_reg_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
125 {
126 /* Check for PCI disconnection */
127 if (reg == 0xffffffff) {
128 /*
129 * Schedule this on the default system workqueue so that all the
130 * adapter workqueues and the DPC thread can be shutdown
131 * cleanly.
132 */
133 schedule_work(&vha->hw->board_disable);
134 return true;
135 } else
136 return false;
137 }
138
139 /**
140 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
141 * @irq:
142 * @dev_id: SCSI driver HA context
143 *
144 * Called by system whenever the host adapter generates an interrupt.
145 *
146 * Returns handled flag.
147 */
148 irqreturn_t
149 qla2300_intr_handler(int irq, void *dev_id)
150 {
151 scsi_qla_host_t *vha;
152 struct device_reg_2xxx __iomem *reg;
153 int status;
154 unsigned long iter;
155 uint32_t stat;
156 uint16_t hccr;
157 uint16_t mb[4];
158 struct rsp_que *rsp;
159 struct qla_hw_data *ha;
160 unsigned long flags;
161
162 rsp = (struct rsp_que *) dev_id;
163 if (!rsp) {
164 ql_log(ql_log_info, NULL, 0x5058,
165 "%s: NULL response queue pointer.\n", __func__);
166 return (IRQ_NONE);
167 }
168
169 ha = rsp->hw;
170 reg = &ha->iobase->isp;
171 status = 0;
172
173 spin_lock_irqsave(&ha->hardware_lock, flags);
174 vha = pci_get_drvdata(ha->pdev);
175 for (iter = 50; iter--; ) {
176 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
177 if (qla2x00_check_reg_for_disconnect(vha, stat))
178 break;
179 if (stat & HSR_RISC_PAUSED) {
180 if (unlikely(pci_channel_offline(ha->pdev)))
181 break;
182
183 hccr = RD_REG_WORD(&reg->hccr);
184
185 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
186 ql_log(ql_log_warn, vha, 0x5026,
187 "Parity error -- HCCR=%x, Dumping "
188 "firmware.\n", hccr);
189 else
190 ql_log(ql_log_warn, vha, 0x5027,
191 "RISC paused -- HCCR=%x, Dumping "
192 "firmware.\n", hccr);
193
194 /*
195 * Issue a "HARD" reset in order for the RISC
196 * interrupt bit to be cleared. Schedule a big
197 * hammer to get out of the RISC PAUSED state.
198 */
199 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
200 RD_REG_WORD(&reg->hccr);
201
202 ha->isp_ops->fw_dump(vha, 1);
203 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
204 break;
205 } else if ((stat & HSR_RISC_INT) == 0)
206 break;
207
208 switch (stat & 0xff) {
209 case 0x1:
210 case 0x2:
211 case 0x10:
212 case 0x11:
213 qla2x00_mbx_completion(vha, MSW(stat));
214 status |= MBX_INTERRUPT;
215
216 /* Release mailbox registers. */
217 WRT_REG_WORD(&reg->semaphore, 0);
218 break;
219 case 0x12:
220 mb[0] = MSW(stat);
221 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
222 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
223 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
224 qla2x00_async_event(vha, rsp, mb);
225 break;
226 case 0x13:
227 qla2x00_process_response_queue(rsp);
228 break;
229 case 0x15:
230 mb[0] = MBA_CMPLT_1_16BIT;
231 mb[1] = MSW(stat);
232 qla2x00_async_event(vha, rsp, mb);
233 break;
234 case 0x16:
235 mb[0] = MBA_SCSI_COMPLETION;
236 mb[1] = MSW(stat);
237 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
238 qla2x00_async_event(vha, rsp, mb);
239 break;
240 default:
241 ql_dbg(ql_dbg_async, vha, 0x5028,
242 "Unrecognized interrupt type (%d).\n", stat & 0xff);
243 break;
244 }
245 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
246 RD_REG_WORD_RELAXED(&reg->hccr);
247 }
248 qla2x00_handle_mbx_completion(ha, status);
249 spin_unlock_irqrestore(&ha->hardware_lock, flags);
250
251 return (IRQ_HANDLED);
252 }
253
254 /**
255 * qla2x00_mbx_completion() - Process mailbox command completions.
256 * @ha: SCSI driver HA context
257 * @mb0: Mailbox0 register
258 */
259 static void
260 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
261 {
262 uint16_t cnt;
263 uint32_t mboxes;
264 uint16_t __iomem *wptr;
265 struct qla_hw_data *ha = vha->hw;
266 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
267
268 /* Read all mbox registers? */
269 mboxes = (1 << ha->mbx_count) - 1;
270 if (!ha->mcp)
271 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
272 else
273 mboxes = ha->mcp->in_mb;
274
275 /* Load return mailbox registers. */
276 ha->flags.mbox_int = 1;
277 ha->mailbox_out[0] = mb0;
278 mboxes >>= 1;
279 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
280
281 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
282 if (IS_QLA2200(ha) && cnt == 8)
283 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
284 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
285 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
286 else if (mboxes & BIT_0)
287 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
288
289 wptr++;
290 mboxes >>= 1;
291 }
292 }
293
294 static void
295 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
296 {
297 static char *event[] =
298 { "Complete", "Request Notification", "Time Extension" };
299 int rval;
300 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
301 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
302 uint16_t __iomem *wptr;
303 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
304
305 /* Seed data -- mailbox1 -> mailbox7. */
306 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
307 wptr = (uint16_t __iomem *)&reg24->mailbox1;
308 else if (IS_QLA8044(vha->hw))
309 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
310 else
311 return;
312
313 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
314 mb[cnt] = RD_REG_WORD(wptr);
315
316 ql_dbg(ql_dbg_async, vha, 0x5021,
317 "Inter-Driver Communication %s -- "
318 "%04x %04x %04x %04x %04x %04x %04x.\n",
319 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
320 mb[4], mb[5], mb[6]);
321 switch (aen) {
322 /* Handle IDC Error completion case. */
323 case MBA_IDC_COMPLETE:
324 if (mb[1] >> 15) {
325 vha->hw->flags.idc_compl_status = 1;
326 if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
327 complete(&vha->hw->dcbx_comp);
328 }
329 break;
330
331 case MBA_IDC_NOTIFY:
332 /* Acknowledgement needed? [Notify && non-zero timeout]. */
333 timeout = (descr >> 8) & 0xf;
334 ql_dbg(ql_dbg_async, vha, 0x5022,
335 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
336 vha->host_no, event[aen & 0xff], timeout);
337
338 if (!timeout)
339 return;
340 rval = qla2x00_post_idc_ack_work(vha, mb);
341 if (rval != QLA_SUCCESS)
342 ql_log(ql_log_warn, vha, 0x5023,
343 "IDC failed to post ACK.\n");
344 break;
345 case MBA_IDC_TIME_EXT:
346 vha->hw->idc_extend_tmo = descr;
347 ql_dbg(ql_dbg_async, vha, 0x5087,
348 "%lu Inter-Driver Communication %s -- "
349 "Extend timeout by=%d.\n",
350 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
351 break;
352 }
353 }
354
355 #define LS_UNKNOWN 2
356 const char *
357 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
358 {
359 static const char * const link_speeds[] = {
360 "1", "2", "?", "4", "8", "16", "10"
361 };
362
363 if (IS_QLA2100(ha) || IS_QLA2200(ha))
364 return link_speeds[0];
365 else if (speed == 0x13)
366 return link_speeds[6];
367 else if (speed < 6)
368 return link_speeds[speed];
369 else
370 return link_speeds[LS_UNKNOWN];
371 }
372
373 static void
374 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
375 {
376 struct qla_hw_data *ha = vha->hw;
377
378 /*
379 * 8200 AEN Interpretation:
380 * mb[0] = AEN code
381 * mb[1] = AEN Reason code
382 * mb[2] = LSW of Peg-Halt Status-1 Register
383 * mb[6] = MSW of Peg-Halt Status-1 Register
384 * mb[3] = LSW of Peg-Halt Status-2 register
385 * mb[7] = MSW of Peg-Halt Status-2 register
386 * mb[4] = IDC Device-State Register value
387 * mb[5] = IDC Driver-Presence Register value
388 */
389 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
390 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
391 mb[0], mb[1], mb[2], mb[6]);
392 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
393 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
394 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
395
396 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
397 IDC_HEARTBEAT_FAILURE)) {
398 ha->flags.nic_core_hung = 1;
399 ql_log(ql_log_warn, vha, 0x5060,
400 "83XX: F/W Error Reported: Check if reset required.\n");
401
402 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
403 uint32_t protocol_engine_id, fw_err_code, err_level;
404
405 /*
406 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
407 * - PEG-Halt Status-1 Register:
408 * (LSW = mb[2], MSW = mb[6])
409 * Bits 0-7 = protocol-engine ID
410 * Bits 8-28 = f/w error code
411 * Bits 29-31 = Error-level
412 * Error-level 0x1 = Non-Fatal error
413 * Error-level 0x2 = Recoverable Fatal error
414 * Error-level 0x4 = UnRecoverable Fatal error
415 * - PEG-Halt Status-2 Register:
416 * (LSW = mb[3], MSW = mb[7])
417 */
418 protocol_engine_id = (mb[2] & 0xff);
419 fw_err_code = (((mb[2] & 0xff00) >> 8) |
420 ((mb[6] & 0x1fff) << 8));
421 err_level = ((mb[6] & 0xe000) >> 13);
422 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
423 "Register: protocol_engine_id=0x%x "
424 "fw_err_code=0x%x err_level=0x%x.\n",
425 protocol_engine_id, fw_err_code, err_level);
426 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
427 "Register: 0x%x%x.\n", mb[7], mb[3]);
428 if (err_level == ERR_LEVEL_NON_FATAL) {
429 ql_log(ql_log_warn, vha, 0x5063,
430 "Not a fatal error, f/w has recovered "
431 "iteself.\n");
432 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
433 ql_log(ql_log_fatal, vha, 0x5064,
434 "Recoverable Fatal error: Chip reset "
435 "required.\n");
436 qla83xx_schedule_work(vha,
437 QLA83XX_NIC_CORE_RESET);
438 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
439 ql_log(ql_log_fatal, vha, 0x5065,
440 "Unrecoverable Fatal error: Set FAILED "
441 "state, reboot required.\n");
442 qla83xx_schedule_work(vha,
443 QLA83XX_NIC_CORE_UNRECOVERABLE);
444 }
445 }
446
447 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
448 uint16_t peg_fw_state, nw_interface_link_up;
449 uint16_t nw_interface_signal_detect, sfp_status;
450 uint16_t htbt_counter, htbt_monitor_enable;
451 uint16_t sfp_additonal_info, sfp_multirate;
452 uint16_t sfp_tx_fault, link_speed, dcbx_status;
453
454 /*
455 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
456 * - PEG-to-FC Status Register:
457 * (LSW = mb[2], MSW = mb[6])
458 * Bits 0-7 = Peg-Firmware state
459 * Bit 8 = N/W Interface Link-up
460 * Bit 9 = N/W Interface signal detected
461 * Bits 10-11 = SFP Status
462 * SFP Status 0x0 = SFP+ transceiver not expected
463 * SFP Status 0x1 = SFP+ transceiver not present
464 * SFP Status 0x2 = SFP+ transceiver invalid
465 * SFP Status 0x3 = SFP+ transceiver present and
466 * valid
467 * Bits 12-14 = Heartbeat Counter
468 * Bit 15 = Heartbeat Monitor Enable
469 * Bits 16-17 = SFP Additional Info
470 * SFP info 0x0 = Unregocnized transceiver for
471 * Ethernet
472 * SFP info 0x1 = SFP+ brand validation failed
473 * SFP info 0x2 = SFP+ speed validation failed
474 * SFP info 0x3 = SFP+ access error
475 * Bit 18 = SFP Multirate
476 * Bit 19 = SFP Tx Fault
477 * Bits 20-22 = Link Speed
478 * Bits 23-27 = Reserved
479 * Bits 28-30 = DCBX Status
480 * DCBX Status 0x0 = DCBX Disabled
481 * DCBX Status 0x1 = DCBX Enabled
482 * DCBX Status 0x2 = DCBX Exchange error
483 * Bit 31 = Reserved
484 */
485 peg_fw_state = (mb[2] & 0x00ff);
486 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
487 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
488 sfp_status = ((mb[2] & 0x0c00) >> 10);
489 htbt_counter = ((mb[2] & 0x7000) >> 12);
490 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
491 sfp_additonal_info = (mb[6] & 0x0003);
492 sfp_multirate = ((mb[6] & 0x0004) >> 2);
493 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
494 link_speed = ((mb[6] & 0x0070) >> 4);
495 dcbx_status = ((mb[6] & 0x7000) >> 12);
496
497 ql_log(ql_log_warn, vha, 0x5066,
498 "Peg-to-Fc Status Register:\n"
499 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
500 "nw_interface_signal_detect=0x%x"
501 "\nsfp_statis=0x%x.\n ", peg_fw_state,
502 nw_interface_link_up, nw_interface_signal_detect,
503 sfp_status);
504 ql_log(ql_log_warn, vha, 0x5067,
505 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
506 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
507 htbt_counter, htbt_monitor_enable,
508 sfp_additonal_info, sfp_multirate);
509 ql_log(ql_log_warn, vha, 0x5068,
510 "sfp_tx_fault=0x%x, link_state=0x%x, "
511 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
512 dcbx_status);
513
514 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
515 }
516
517 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
518 ql_log(ql_log_warn, vha, 0x5069,
519 "Heartbeat Failure encountered, chip reset "
520 "required.\n");
521
522 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
523 }
524 }
525
526 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
527 ql_log(ql_log_info, vha, 0x506a,
528 "IDC Device-State changed = 0x%x.\n", mb[4]);
529 if (ha->flags.nic_core_reset_owner)
530 return;
531 qla83xx_schedule_work(vha, MBA_IDC_AEN);
532 }
533 }
534
535 int
536 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
537 {
538 struct qla_hw_data *ha = vha->hw;
539 scsi_qla_host_t *vp;
540 uint32_t vp_did;
541 unsigned long flags;
542 int ret = 0;
543
544 if (!ha->num_vhosts)
545 return ret;
546
547 spin_lock_irqsave(&ha->vport_slock, flags);
548 list_for_each_entry(vp, &ha->vp_list, list) {
549 vp_did = vp->d_id.b24;
550 if (vp_did == rscn_entry) {
551 ret = 1;
552 break;
553 }
554 }
555 spin_unlock_irqrestore(&ha->vport_slock, flags);
556
557 return ret;
558 }
559
560 /**
561 * qla2x00_async_event() - Process aynchronous events.
562 * @ha: SCSI driver HA context
563 * @mb: Mailbox registers (0 - 3)
564 */
565 void
566 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
567 {
568 uint16_t handle_cnt;
569 uint16_t cnt, mbx;
570 uint32_t handles[5];
571 struct qla_hw_data *ha = vha->hw;
572 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
573 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
574 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
575 uint32_t rscn_entry, host_pid;
576 unsigned long flags;
577
578 /* Setup to process RIO completion. */
579 handle_cnt = 0;
580 if (IS_CNA_CAPABLE(ha))
581 goto skip_rio;
582 switch (mb[0]) {
583 case MBA_SCSI_COMPLETION:
584 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
585 handle_cnt = 1;
586 break;
587 case MBA_CMPLT_1_16BIT:
588 handles[0] = mb[1];
589 handle_cnt = 1;
590 mb[0] = MBA_SCSI_COMPLETION;
591 break;
592 case MBA_CMPLT_2_16BIT:
593 handles[0] = mb[1];
594 handles[1] = mb[2];
595 handle_cnt = 2;
596 mb[0] = MBA_SCSI_COMPLETION;
597 break;
598 case MBA_CMPLT_3_16BIT:
599 handles[0] = mb[1];
600 handles[1] = mb[2];
601 handles[2] = mb[3];
602 handle_cnt = 3;
603 mb[0] = MBA_SCSI_COMPLETION;
604 break;
605 case MBA_CMPLT_4_16BIT:
606 handles[0] = mb[1];
607 handles[1] = mb[2];
608 handles[2] = mb[3];
609 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
610 handle_cnt = 4;
611 mb[0] = MBA_SCSI_COMPLETION;
612 break;
613 case MBA_CMPLT_5_16BIT:
614 handles[0] = mb[1];
615 handles[1] = mb[2];
616 handles[2] = mb[3];
617 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
618 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
619 handle_cnt = 5;
620 mb[0] = MBA_SCSI_COMPLETION;
621 break;
622 case MBA_CMPLT_2_32BIT:
623 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
624 handles[1] = le32_to_cpu(
625 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
626 RD_MAILBOX_REG(ha, reg, 6));
627 handle_cnt = 2;
628 mb[0] = MBA_SCSI_COMPLETION;
629 break;
630 default:
631 break;
632 }
633 skip_rio:
634 switch (mb[0]) {
635 case MBA_SCSI_COMPLETION: /* Fast Post */
636 if (!vha->flags.online)
637 break;
638
639 for (cnt = 0; cnt < handle_cnt; cnt++)
640 qla2x00_process_completed_request(vha, rsp->req,
641 handles[cnt]);
642 break;
643
644 case MBA_RESET: /* Reset */
645 ql_dbg(ql_dbg_async, vha, 0x5002,
646 "Asynchronous RESET.\n");
647
648 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
649 break;
650
651 case MBA_SYSTEM_ERR: /* System Error */
652 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha)) ?
653 RD_REG_WORD(&reg24->mailbox7) : 0;
654 ql_log(ql_log_warn, vha, 0x5003,
655 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
656 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
657
658 ha->isp_ops->fw_dump(vha, 1);
659
660 if (IS_FWI2_CAPABLE(ha)) {
661 if (mb[1] == 0 && mb[2] == 0) {
662 ql_log(ql_log_fatal, vha, 0x5004,
663 "Unrecoverable Hardware Error: adapter "
664 "marked OFFLINE!\n");
665 vha->flags.online = 0;
666 vha->device_flags |= DFLG_DEV_FAILED;
667 } else {
668 /* Check to see if MPI timeout occurred */
669 if ((mbx & MBX_3) && (ha->flags.port0))
670 set_bit(MPI_RESET_NEEDED,
671 &vha->dpc_flags);
672
673 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
674 }
675 } else if (mb[1] == 0) {
676 ql_log(ql_log_fatal, vha, 0x5005,
677 "Unrecoverable Hardware Error: adapter marked "
678 "OFFLINE!\n");
679 vha->flags.online = 0;
680 vha->device_flags |= DFLG_DEV_FAILED;
681 } else
682 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
683 break;
684
685 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
686 ql_log(ql_log_warn, vha, 0x5006,
687 "ISP Request Transfer Error (%x).\n", mb[1]);
688
689 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
690 break;
691
692 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
693 ql_log(ql_log_warn, vha, 0x5007,
694 "ISP Response Transfer Error.\n");
695
696 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
697 break;
698
699 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
700 ql_dbg(ql_dbg_async, vha, 0x5008,
701 "Asynchronous WAKEUP_THRES.\n");
702
703 break;
704 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
705 ql_dbg(ql_dbg_async, vha, 0x5009,
706 "LIP occurred (%x).\n", mb[1]);
707
708 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
709 atomic_set(&vha->loop_state, LOOP_DOWN);
710 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
711 qla2x00_mark_all_devices_lost(vha, 1);
712 }
713
714 if (vha->vp_idx) {
715 atomic_set(&vha->vp_state, VP_FAILED);
716 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
717 }
718
719 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
720 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
721
722 vha->flags.management_server_logged_in = 0;
723 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
724 break;
725
726 case MBA_LOOP_UP: /* Loop Up Event */
727 if (IS_QLA2100(ha) || IS_QLA2200(ha))
728 ha->link_data_rate = PORT_SPEED_1GB;
729 else
730 ha->link_data_rate = mb[1];
731
732 ql_dbg(ql_dbg_async, vha, 0x500a,
733 "LOOP UP detected (%s Gbps).\n",
734 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
735
736 vha->flags.management_server_logged_in = 0;
737 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
738 break;
739
740 case MBA_LOOP_DOWN: /* Loop Down Event */
741 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
742 ? RD_REG_WORD(&reg24->mailbox4) : 0;
743 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
744 : mbx;
745 ql_dbg(ql_dbg_async, vha, 0x500b,
746 "LOOP DOWN detected (%x %x %x %x).\n",
747 mb[1], mb[2], mb[3], mbx);
748
749 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
750 atomic_set(&vha->loop_state, LOOP_DOWN);
751 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
752 vha->device_flags |= DFLG_NO_CABLE;
753 qla2x00_mark_all_devices_lost(vha, 1);
754 }
755
756 if (vha->vp_idx) {
757 atomic_set(&vha->vp_state, VP_FAILED);
758 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
759 }
760
761 vha->flags.management_server_logged_in = 0;
762 ha->link_data_rate = PORT_SPEED_UNKNOWN;
763 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
764 break;
765
766 case MBA_LIP_RESET: /* LIP reset occurred */
767 ql_dbg(ql_dbg_async, vha, 0x500c,
768 "LIP reset occurred (%x).\n", mb[1]);
769
770 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
771 atomic_set(&vha->loop_state, LOOP_DOWN);
772 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
773 qla2x00_mark_all_devices_lost(vha, 1);
774 }
775
776 if (vha->vp_idx) {
777 atomic_set(&vha->vp_state, VP_FAILED);
778 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
779 }
780
781 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
782
783 ha->operating_mode = LOOP;
784 vha->flags.management_server_logged_in = 0;
785 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
786 break;
787
788 /* case MBA_DCBX_COMPLETE: */
789 case MBA_POINT_TO_POINT: /* Point-to-Point */
790 if (IS_QLA2100(ha))
791 break;
792
793 if (IS_CNA_CAPABLE(ha)) {
794 ql_dbg(ql_dbg_async, vha, 0x500d,
795 "DCBX Completed -- %04x %04x %04x.\n",
796 mb[1], mb[2], mb[3]);
797 if (ha->notify_dcbx_comp && !vha->vp_idx)
798 complete(&ha->dcbx_comp);
799
800 } else
801 ql_dbg(ql_dbg_async, vha, 0x500e,
802 "Asynchronous P2P MODE received.\n");
803
804 /*
805 * Until there's a transition from loop down to loop up, treat
806 * this as loop down only.
807 */
808 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
809 atomic_set(&vha->loop_state, LOOP_DOWN);
810 if (!atomic_read(&vha->loop_down_timer))
811 atomic_set(&vha->loop_down_timer,
812 LOOP_DOWN_TIME);
813 qla2x00_mark_all_devices_lost(vha, 1);
814 }
815
816 if (vha->vp_idx) {
817 atomic_set(&vha->vp_state, VP_FAILED);
818 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
819 }
820
821 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
822 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
823
824 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
825 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
826
827 ha->flags.gpsc_supported = 1;
828 vha->flags.management_server_logged_in = 0;
829 break;
830
831 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
832 if (IS_QLA2100(ha))
833 break;
834
835 ql_dbg(ql_dbg_async, vha, 0x500f,
836 "Configuration change detected: value=%x.\n", mb[1]);
837
838 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
839 atomic_set(&vha->loop_state, LOOP_DOWN);
840 if (!atomic_read(&vha->loop_down_timer))
841 atomic_set(&vha->loop_down_timer,
842 LOOP_DOWN_TIME);
843 qla2x00_mark_all_devices_lost(vha, 1);
844 }
845
846 if (vha->vp_idx) {
847 atomic_set(&vha->vp_state, VP_FAILED);
848 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
849 }
850
851 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
852 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
853 break;
854
855 case MBA_PORT_UPDATE: /* Port database update */
856 /*
857 * Handle only global and vn-port update events
858 *
859 * Relevant inputs:
860 * mb[1] = N_Port handle of changed port
861 * OR 0xffff for global event
862 * mb[2] = New login state
863 * 7 = Port logged out
864 * mb[3] = LSB is vp_idx, 0xff = all vps
865 *
866 * Skip processing if:
867 * Event is global, vp_idx is NOT all vps,
868 * vp_idx does not match
869 * Event is not global, vp_idx does not match
870 */
871 if (IS_QLA2XXX_MIDTYPE(ha) &&
872 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
873 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
874 break;
875
876 /* Global event -- port logout or port unavailable. */
877 if (mb[1] == 0xffff && mb[2] == 0x7) {
878 ql_dbg(ql_dbg_async, vha, 0x5010,
879 "Port unavailable %04x %04x %04x.\n",
880 mb[1], mb[2], mb[3]);
881 ql_log(ql_log_warn, vha, 0x505e,
882 "Link is offline.\n");
883
884 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
885 atomic_set(&vha->loop_state, LOOP_DOWN);
886 atomic_set(&vha->loop_down_timer,
887 LOOP_DOWN_TIME);
888 vha->device_flags |= DFLG_NO_CABLE;
889 qla2x00_mark_all_devices_lost(vha, 1);
890 }
891
892 if (vha->vp_idx) {
893 atomic_set(&vha->vp_state, VP_FAILED);
894 fc_vport_set_state(vha->fc_vport,
895 FC_VPORT_FAILED);
896 qla2x00_mark_all_devices_lost(vha, 1);
897 }
898
899 vha->flags.management_server_logged_in = 0;
900 ha->link_data_rate = PORT_SPEED_UNKNOWN;
901 break;
902 }
903
904 /*
905 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
906 * event etc. earlier indicating loop is down) then process
907 * it. Otherwise ignore it and Wait for RSCN to come in.
908 */
909 atomic_set(&vha->loop_down_timer, 0);
910 if (mb[1] != 0xffff || (mb[2] != 0x6 && mb[2] != 0x4)) {
911 ql_dbg(ql_dbg_async, vha, 0x5011,
912 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
913 mb[1], mb[2], mb[3]);
914
915 qlt_async_event(mb[0], vha, mb);
916 break;
917 }
918
919 ql_dbg(ql_dbg_async, vha, 0x5012,
920 "Port database changed %04x %04x %04x.\n",
921 mb[1], mb[2], mb[3]);
922 ql_log(ql_log_warn, vha, 0x505f,
923 "Link is operational (%s Gbps).\n",
924 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
925
926 /*
927 * Mark all devices as missing so we will login again.
928 */
929 atomic_set(&vha->loop_state, LOOP_UP);
930
931 qla2x00_mark_all_devices_lost(vha, 1);
932
933 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
934 set_bit(SCR_PENDING, &vha->dpc_flags);
935
936 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
937 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
938
939 qlt_async_event(mb[0], vha, mb);
940 break;
941
942 case MBA_RSCN_UPDATE: /* State Change Registration */
943 /* Check if the Vport has issued a SCR */
944 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
945 break;
946 /* Only handle SCNs for our Vport index. */
947 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
948 break;
949
950 ql_dbg(ql_dbg_async, vha, 0x5013,
951 "RSCN database changed -- %04x %04x %04x.\n",
952 mb[1], mb[2], mb[3]);
953
954 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
955 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
956 | vha->d_id.b.al_pa;
957 if (rscn_entry == host_pid) {
958 ql_dbg(ql_dbg_async, vha, 0x5014,
959 "Ignoring RSCN update to local host "
960 "port ID (%06x).\n", host_pid);
961 break;
962 }
963
964 /* Ignore reserved bits from RSCN-payload. */
965 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
966
967 /* Skip RSCNs for virtual ports on the same physical port */
968 if (qla2x00_is_a_vp_did(vha, rscn_entry))
969 break;
970
971 atomic_set(&vha->loop_down_timer, 0);
972 vha->flags.management_server_logged_in = 0;
973
974 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
975 set_bit(RSCN_UPDATE, &vha->dpc_flags);
976 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
977 break;
978
979 /* case MBA_RIO_RESPONSE: */
980 case MBA_ZIO_RESPONSE:
981 ql_dbg(ql_dbg_async, vha, 0x5015,
982 "[R|Z]IO update completion.\n");
983
984 if (IS_FWI2_CAPABLE(ha))
985 qla24xx_process_response_queue(vha, rsp);
986 else
987 qla2x00_process_response_queue(rsp);
988 break;
989
990 case MBA_DISCARD_RND_FRAME:
991 ql_dbg(ql_dbg_async, vha, 0x5016,
992 "Discard RND Frame -- %04x %04x %04x.\n",
993 mb[1], mb[2], mb[3]);
994 break;
995
996 case MBA_TRACE_NOTIFICATION:
997 ql_dbg(ql_dbg_async, vha, 0x5017,
998 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
999 break;
1000
1001 case MBA_ISP84XX_ALERT:
1002 ql_dbg(ql_dbg_async, vha, 0x5018,
1003 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1004 mb[1], mb[2], mb[3]);
1005
1006 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1007 switch (mb[1]) {
1008 case A84_PANIC_RECOVERY:
1009 ql_log(ql_log_info, vha, 0x5019,
1010 "Alert 84XX: panic recovery %04x %04x.\n",
1011 mb[2], mb[3]);
1012 break;
1013 case A84_OP_LOGIN_COMPLETE:
1014 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1015 ql_log(ql_log_info, vha, 0x501a,
1016 "Alert 84XX: firmware version %x.\n",
1017 ha->cs84xx->op_fw_version);
1018 break;
1019 case A84_DIAG_LOGIN_COMPLETE:
1020 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1021 ql_log(ql_log_info, vha, 0x501b,
1022 "Alert 84XX: diagnostic firmware version %x.\n",
1023 ha->cs84xx->diag_fw_version);
1024 break;
1025 case A84_GOLD_LOGIN_COMPLETE:
1026 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1027 ha->cs84xx->fw_update = 1;
1028 ql_log(ql_log_info, vha, 0x501c,
1029 "Alert 84XX: gold firmware version %x.\n",
1030 ha->cs84xx->gold_fw_version);
1031 break;
1032 default:
1033 ql_log(ql_log_warn, vha, 0x501d,
1034 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1035 mb[1], mb[2], mb[3]);
1036 }
1037 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1038 break;
1039 case MBA_DCBX_START:
1040 ql_dbg(ql_dbg_async, vha, 0x501e,
1041 "DCBX Started -- %04x %04x %04x.\n",
1042 mb[1], mb[2], mb[3]);
1043 break;
1044 case MBA_DCBX_PARAM_UPDATE:
1045 ql_dbg(ql_dbg_async, vha, 0x501f,
1046 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1047 mb[1], mb[2], mb[3]);
1048 break;
1049 case MBA_FCF_CONF_ERR:
1050 ql_dbg(ql_dbg_async, vha, 0x5020,
1051 "FCF Configuration Error -- %04x %04x %04x.\n",
1052 mb[1], mb[2], mb[3]);
1053 break;
1054 case MBA_IDC_NOTIFY:
1055 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1056 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1057 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1058 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1059 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1060 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1061 /*
1062 * Extend loop down timer since port is active.
1063 */
1064 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1065 atomic_set(&vha->loop_down_timer,
1066 LOOP_DOWN_TIME);
1067 qla2xxx_wake_dpc(vha);
1068 }
1069 }
1070 case MBA_IDC_COMPLETE:
1071 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1072 complete(&ha->lb_portup_comp);
1073 /* Fallthru */
1074 case MBA_IDC_TIME_EXT:
1075 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1076 IS_QLA8044(ha))
1077 qla81xx_idc_event(vha, mb[0], mb[1]);
1078 break;
1079
1080 case MBA_IDC_AEN:
1081 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1082 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1083 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1084 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1085 qla83xx_handle_8200_aen(vha, mb);
1086 break;
1087
1088 default:
1089 ql_dbg(ql_dbg_async, vha, 0x5057,
1090 "Unknown AEN:%04x %04x %04x %04x\n",
1091 mb[0], mb[1], mb[2], mb[3]);
1092 }
1093
1094 qlt_async_event(mb[0], vha, mb);
1095
1096 if (!vha->vp_idx && ha->num_vhosts)
1097 qla2x00_alert_all_vps(rsp, mb);
1098 }
1099
1100 /**
1101 * qla2x00_process_completed_request() - Process a Fast Post response.
1102 * @ha: SCSI driver HA context
1103 * @index: SRB index
1104 */
1105 void
1106 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1107 struct req_que *req, uint32_t index)
1108 {
1109 srb_t *sp;
1110 struct qla_hw_data *ha = vha->hw;
1111
1112 /* Validate handle. */
1113 if (index >= req->num_outstanding_cmds) {
1114 ql_log(ql_log_warn, vha, 0x3014,
1115 "Invalid SCSI command index (%x).\n", index);
1116
1117 if (IS_P3P_TYPE(ha))
1118 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1119 else
1120 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1121 return;
1122 }
1123
1124 sp = req->outstanding_cmds[index];
1125 if (sp) {
1126 /* Free outstanding command slot. */
1127 req->outstanding_cmds[index] = NULL;
1128
1129 /* Save ISP completion status */
1130 sp->done(ha, sp, DID_OK << 16);
1131 } else {
1132 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1133
1134 if (IS_P3P_TYPE(ha))
1135 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1136 else
1137 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1138 }
1139 }
1140
1141 srb_t *
1142 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1143 struct req_que *req, void *iocb)
1144 {
1145 struct qla_hw_data *ha = vha->hw;
1146 sts_entry_t *pkt = iocb;
1147 srb_t *sp = NULL;
1148 uint16_t index;
1149
1150 index = LSW(pkt->handle);
1151 if (index >= req->num_outstanding_cmds) {
1152 ql_log(ql_log_warn, vha, 0x5031,
1153 "Invalid command index (%x).\n", index);
1154 if (IS_P3P_TYPE(ha))
1155 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1156 else
1157 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1158 goto done;
1159 }
1160 sp = req->outstanding_cmds[index];
1161 if (!sp) {
1162 ql_log(ql_log_warn, vha, 0x5032,
1163 "Invalid completion handle (%x) -- timed-out.\n", index);
1164 return sp;
1165 }
1166 if (sp->handle != index) {
1167 ql_log(ql_log_warn, vha, 0x5033,
1168 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1169 return NULL;
1170 }
1171
1172 req->outstanding_cmds[index] = NULL;
1173
1174 done:
1175 return sp;
1176 }
1177
1178 static void
1179 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1180 struct mbx_entry *mbx)
1181 {
1182 const char func[] = "MBX-IOCB";
1183 const char *type;
1184 fc_port_t *fcport;
1185 srb_t *sp;
1186 struct srb_iocb *lio;
1187 uint16_t *data;
1188 uint16_t status;
1189
1190 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1191 if (!sp)
1192 return;
1193
1194 lio = &sp->u.iocb_cmd;
1195 type = sp->name;
1196 fcport = sp->fcport;
1197 data = lio->u.logio.data;
1198
1199 data[0] = MBS_COMMAND_ERROR;
1200 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1201 QLA_LOGIO_LOGIN_RETRIED : 0;
1202 if (mbx->entry_status) {
1203 ql_dbg(ql_dbg_async, vha, 0x5043,
1204 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1205 "entry-status=%x status=%x state-flag=%x "
1206 "status-flags=%x.\n", type, sp->handle,
1207 fcport->d_id.b.domain, fcport->d_id.b.area,
1208 fcport->d_id.b.al_pa, mbx->entry_status,
1209 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1210 le16_to_cpu(mbx->status_flags));
1211
1212 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1213 (uint8_t *)mbx, sizeof(*mbx));
1214
1215 goto logio_done;
1216 }
1217
1218 status = le16_to_cpu(mbx->status);
1219 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1220 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1221 status = 0;
1222 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1223 ql_dbg(ql_dbg_async, vha, 0x5045,
1224 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1225 type, sp->handle, fcport->d_id.b.domain,
1226 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1227 le16_to_cpu(mbx->mb1));
1228
1229 data[0] = MBS_COMMAND_COMPLETE;
1230 if (sp->type == SRB_LOGIN_CMD) {
1231 fcport->port_type = FCT_TARGET;
1232 if (le16_to_cpu(mbx->mb1) & BIT_0)
1233 fcport->port_type = FCT_INITIATOR;
1234 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1235 fcport->flags |= FCF_FCP2_DEVICE;
1236 }
1237 goto logio_done;
1238 }
1239
1240 data[0] = le16_to_cpu(mbx->mb0);
1241 switch (data[0]) {
1242 case MBS_PORT_ID_USED:
1243 data[1] = le16_to_cpu(mbx->mb1);
1244 break;
1245 case MBS_LOOP_ID_USED:
1246 break;
1247 default:
1248 data[0] = MBS_COMMAND_ERROR;
1249 break;
1250 }
1251
1252 ql_log(ql_log_warn, vha, 0x5046,
1253 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1254 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1255 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1256 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1257 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1258 le16_to_cpu(mbx->mb7));
1259
1260 logio_done:
1261 sp->done(vha, sp, 0);
1262 }
1263
1264 static void
1265 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1266 sts_entry_t *pkt, int iocb_type)
1267 {
1268 const char func[] = "CT_IOCB";
1269 const char *type;
1270 srb_t *sp;
1271 struct fc_bsg_job *bsg_job;
1272 uint16_t comp_status;
1273 int res;
1274
1275 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1276 if (!sp)
1277 return;
1278
1279 bsg_job = sp->u.bsg_job;
1280
1281 type = "ct pass-through";
1282
1283 comp_status = le16_to_cpu(pkt->comp_status);
1284
1285 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1286 * fc payload to the caller
1287 */
1288 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1289 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1290
1291 if (comp_status != CS_COMPLETE) {
1292 if (comp_status == CS_DATA_UNDERRUN) {
1293 res = DID_OK << 16;
1294 bsg_job->reply->reply_payload_rcv_len =
1295 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1296
1297 ql_log(ql_log_warn, vha, 0x5048,
1298 "CT pass-through-%s error "
1299 "comp_status-status=0x%x total_byte = 0x%x.\n",
1300 type, comp_status,
1301 bsg_job->reply->reply_payload_rcv_len);
1302 } else {
1303 ql_log(ql_log_warn, vha, 0x5049,
1304 "CT pass-through-%s error "
1305 "comp_status-status=0x%x.\n", type, comp_status);
1306 res = DID_ERROR << 16;
1307 bsg_job->reply->reply_payload_rcv_len = 0;
1308 }
1309 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1310 (uint8_t *)pkt, sizeof(*pkt));
1311 } else {
1312 res = DID_OK << 16;
1313 bsg_job->reply->reply_payload_rcv_len =
1314 bsg_job->reply_payload.payload_len;
1315 bsg_job->reply_len = 0;
1316 }
1317
1318 sp->done(vha, sp, res);
1319 }
1320
1321 static void
1322 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1323 struct sts_entry_24xx *pkt, int iocb_type)
1324 {
1325 const char func[] = "ELS_CT_IOCB";
1326 const char *type;
1327 srb_t *sp;
1328 struct fc_bsg_job *bsg_job;
1329 uint16_t comp_status;
1330 uint32_t fw_status[3];
1331 uint8_t* fw_sts_ptr;
1332 int res;
1333
1334 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1335 if (!sp)
1336 return;
1337 bsg_job = sp->u.bsg_job;
1338
1339 type = NULL;
1340 switch (sp->type) {
1341 case SRB_ELS_CMD_RPT:
1342 case SRB_ELS_CMD_HST:
1343 type = "els";
1344 break;
1345 case SRB_CT_CMD:
1346 type = "ct pass-through";
1347 break;
1348 default:
1349 ql_dbg(ql_dbg_user, vha, 0x503e,
1350 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1351 return;
1352 }
1353
1354 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1355 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1356 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1357
1358 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1359 * fc payload to the caller
1360 */
1361 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1362 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1363
1364 if (comp_status != CS_COMPLETE) {
1365 if (comp_status == CS_DATA_UNDERRUN) {
1366 res = DID_OK << 16;
1367 bsg_job->reply->reply_payload_rcv_len =
1368 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1369
1370 ql_dbg(ql_dbg_user, vha, 0x503f,
1371 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1372 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1373 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1374 le16_to_cpu(((struct els_sts_entry_24xx *)
1375 pkt)->total_byte_count));
1376 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1377 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1378 }
1379 else {
1380 ql_dbg(ql_dbg_user, vha, 0x5040,
1381 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1382 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1383 type, sp->handle, comp_status,
1384 le16_to_cpu(((struct els_sts_entry_24xx *)
1385 pkt)->error_subcode_1),
1386 le16_to_cpu(((struct els_sts_entry_24xx *)
1387 pkt)->error_subcode_2));
1388 res = DID_ERROR << 16;
1389 bsg_job->reply->reply_payload_rcv_len = 0;
1390 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1391 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1392 }
1393 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1394 (uint8_t *)pkt, sizeof(*pkt));
1395 }
1396 else {
1397 res = DID_OK << 16;
1398 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1399 bsg_job->reply_len = 0;
1400 }
1401
1402 sp->done(vha, sp, res);
1403 }
1404
1405 static void
1406 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1407 struct logio_entry_24xx *logio)
1408 {
1409 const char func[] = "LOGIO-IOCB";
1410 const char *type;
1411 fc_port_t *fcport;
1412 srb_t *sp;
1413 struct srb_iocb *lio;
1414 uint16_t *data;
1415 uint32_t iop[2];
1416
1417 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1418 if (!sp)
1419 return;
1420
1421 lio = &sp->u.iocb_cmd;
1422 type = sp->name;
1423 fcport = sp->fcport;
1424 data = lio->u.logio.data;
1425
1426 data[0] = MBS_COMMAND_ERROR;
1427 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1428 QLA_LOGIO_LOGIN_RETRIED : 0;
1429 if (logio->entry_status) {
1430 ql_log(ql_log_warn, fcport->vha, 0x5034,
1431 "Async-%s error entry - hdl=%x"
1432 "portid=%02x%02x%02x entry-status=%x.\n",
1433 type, sp->handle, fcport->d_id.b.domain,
1434 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1435 logio->entry_status);
1436 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1437 (uint8_t *)logio, sizeof(*logio));
1438
1439 goto logio_done;
1440 }
1441
1442 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1443 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1444 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1445 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1446 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1447 le32_to_cpu(logio->io_parameter[0]));
1448
1449 data[0] = MBS_COMMAND_COMPLETE;
1450 if (sp->type != SRB_LOGIN_CMD)
1451 goto logio_done;
1452
1453 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1454 if (iop[0] & BIT_4) {
1455 fcport->port_type = FCT_TARGET;
1456 if (iop[0] & BIT_8)
1457 fcport->flags |= FCF_FCP2_DEVICE;
1458 } else if (iop[0] & BIT_5)
1459 fcport->port_type = FCT_INITIATOR;
1460
1461 if (iop[0] & BIT_7)
1462 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1463
1464 if (logio->io_parameter[7] || logio->io_parameter[8])
1465 fcport->supported_classes |= FC_COS_CLASS2;
1466 if (logio->io_parameter[9] || logio->io_parameter[10])
1467 fcport->supported_classes |= FC_COS_CLASS3;
1468
1469 goto logio_done;
1470 }
1471
1472 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1473 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1474 switch (iop[0]) {
1475 case LSC_SCODE_PORTID_USED:
1476 data[0] = MBS_PORT_ID_USED;
1477 data[1] = LSW(iop[1]);
1478 break;
1479 case LSC_SCODE_NPORT_USED:
1480 data[0] = MBS_LOOP_ID_USED;
1481 break;
1482 default:
1483 data[0] = MBS_COMMAND_ERROR;
1484 break;
1485 }
1486
1487 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1488 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1489 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1490 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1491 le16_to_cpu(logio->comp_status),
1492 le32_to_cpu(logio->io_parameter[0]),
1493 le32_to_cpu(logio->io_parameter[1]));
1494
1495 logio_done:
1496 sp->done(vha, sp, 0);
1497 }
1498
1499 static void
1500 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1501 struct tsk_mgmt_entry *tsk)
1502 {
1503 const char func[] = "TMF-IOCB";
1504 const char *type;
1505 fc_port_t *fcport;
1506 srb_t *sp;
1507 struct srb_iocb *iocb;
1508 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1509 int error = 1;
1510
1511 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1512 if (!sp)
1513 return;
1514
1515 iocb = &sp->u.iocb_cmd;
1516 type = sp->name;
1517 fcport = sp->fcport;
1518
1519 if (sts->entry_status) {
1520 ql_log(ql_log_warn, fcport->vha, 0x5038,
1521 "Async-%s error - hdl=%x entry-status(%x).\n",
1522 type, sp->handle, sts->entry_status);
1523 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1524 ql_log(ql_log_warn, fcport->vha, 0x5039,
1525 "Async-%s error - hdl=%x completion status(%x).\n",
1526 type, sp->handle, sts->comp_status);
1527 } else if (!(le16_to_cpu(sts->scsi_status) &
1528 SS_RESPONSE_INFO_LEN_VALID)) {
1529 ql_log(ql_log_warn, fcport->vha, 0x503a,
1530 "Async-%s error - hdl=%x no response info(%x).\n",
1531 type, sp->handle, sts->scsi_status);
1532 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1533 ql_log(ql_log_warn, fcport->vha, 0x503b,
1534 "Async-%s error - hdl=%x not enough response(%d).\n",
1535 type, sp->handle, sts->rsp_data_len);
1536 } else if (sts->data[3]) {
1537 ql_log(ql_log_warn, fcport->vha, 0x503c,
1538 "Async-%s error - hdl=%x response(%x).\n",
1539 type, sp->handle, sts->data[3]);
1540 } else {
1541 error = 0;
1542 }
1543
1544 if (error) {
1545 iocb->u.tmf.data = error;
1546 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1547 (uint8_t *)sts, sizeof(*sts));
1548 }
1549
1550 sp->done(vha, sp, 0);
1551 }
1552
1553 /**
1554 * qla2x00_process_response_queue() - Process response queue entries.
1555 * @ha: SCSI driver HA context
1556 */
1557 void
1558 qla2x00_process_response_queue(struct rsp_que *rsp)
1559 {
1560 struct scsi_qla_host *vha;
1561 struct qla_hw_data *ha = rsp->hw;
1562 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1563 sts_entry_t *pkt;
1564 uint16_t handle_cnt;
1565 uint16_t cnt;
1566
1567 vha = pci_get_drvdata(ha->pdev);
1568
1569 if (!vha->flags.online)
1570 return;
1571
1572 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1573 pkt = (sts_entry_t *)rsp->ring_ptr;
1574
1575 rsp->ring_index++;
1576 if (rsp->ring_index == rsp->length) {
1577 rsp->ring_index = 0;
1578 rsp->ring_ptr = rsp->ring;
1579 } else {
1580 rsp->ring_ptr++;
1581 }
1582
1583 if (pkt->entry_status != 0) {
1584 qla2x00_error_entry(vha, rsp, pkt);
1585 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1586 wmb();
1587 continue;
1588 }
1589
1590 switch (pkt->entry_type) {
1591 case STATUS_TYPE:
1592 qla2x00_status_entry(vha, rsp, pkt);
1593 break;
1594 case STATUS_TYPE_21:
1595 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1596 for (cnt = 0; cnt < handle_cnt; cnt++) {
1597 qla2x00_process_completed_request(vha, rsp->req,
1598 ((sts21_entry_t *)pkt)->handle[cnt]);
1599 }
1600 break;
1601 case STATUS_TYPE_22:
1602 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1603 for (cnt = 0; cnt < handle_cnt; cnt++) {
1604 qla2x00_process_completed_request(vha, rsp->req,
1605 ((sts22_entry_t *)pkt)->handle[cnt]);
1606 }
1607 break;
1608 case STATUS_CONT_TYPE:
1609 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1610 break;
1611 case MBX_IOCB_TYPE:
1612 qla2x00_mbx_iocb_entry(vha, rsp->req,
1613 (struct mbx_entry *)pkt);
1614 break;
1615 case CT_IOCB_TYPE:
1616 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1617 break;
1618 default:
1619 /* Type Not Supported. */
1620 ql_log(ql_log_warn, vha, 0x504a,
1621 "Received unknown response pkt type %x "
1622 "entry status=%x.\n",
1623 pkt->entry_type, pkt->entry_status);
1624 break;
1625 }
1626 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1627 wmb();
1628 }
1629
1630 /* Adjust ring index */
1631 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1632 }
1633
1634 static inline void
1635 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1636 uint32_t sense_len, struct rsp_que *rsp, int res)
1637 {
1638 struct scsi_qla_host *vha = sp->fcport->vha;
1639 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1640 uint32_t track_sense_len;
1641
1642 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1643 sense_len = SCSI_SENSE_BUFFERSIZE;
1644
1645 SET_CMD_SENSE_LEN(sp, sense_len);
1646 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1647 track_sense_len = sense_len;
1648
1649 if (sense_len > par_sense_len)
1650 sense_len = par_sense_len;
1651
1652 memcpy(cp->sense_buffer, sense_data, sense_len);
1653
1654 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1655 track_sense_len -= sense_len;
1656 SET_CMD_SENSE_LEN(sp, track_sense_len);
1657
1658 if (track_sense_len != 0) {
1659 rsp->status_srb = sp;
1660 cp->result = res;
1661 }
1662
1663 if (sense_len) {
1664 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1665 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1666 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1667 cp);
1668 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1669 cp->sense_buffer, sense_len);
1670 }
1671 }
1672
1673 struct scsi_dif_tuple {
1674 __be16 guard; /* Checksum */
1675 __be16 app_tag; /* APPL identifier */
1676 __be32 ref_tag; /* Target LBA or indirect LBA */
1677 };
1678
1679 /*
1680 * Checks the guard or meta-data for the type of error
1681 * detected by the HBA. In case of errors, we set the
1682 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1683 * to indicate to the kernel that the HBA detected error.
1684 */
1685 static inline int
1686 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1687 {
1688 struct scsi_qla_host *vha = sp->fcport->vha;
1689 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1690 uint8_t *ap = &sts24->data[12];
1691 uint8_t *ep = &sts24->data[20];
1692 uint32_t e_ref_tag, a_ref_tag;
1693 uint16_t e_app_tag, a_app_tag;
1694 uint16_t e_guard, a_guard;
1695
1696 /*
1697 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1698 * would make guard field appear at offset 2
1699 */
1700 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1701 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1702 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1703 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1704 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1705 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1706
1707 ql_dbg(ql_dbg_io, vha, 0x3023,
1708 "iocb(s) %p Returned STATUS.\n", sts24);
1709
1710 ql_dbg(ql_dbg_io, vha, 0x3024,
1711 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1712 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1713 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1714 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1715 a_app_tag, e_app_tag, a_guard, e_guard);
1716
1717 /*
1718 * Ignore sector if:
1719 * For type 3: ref & app tag is all 'f's
1720 * For type 0,1,2: app tag is all 'f's
1721 */
1722 if ((a_app_tag == 0xffff) &&
1723 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1724 (a_ref_tag == 0xffffffff))) {
1725 uint32_t blocks_done, resid;
1726 sector_t lba_s = scsi_get_lba(cmd);
1727
1728 /* 2TB boundary case covered automatically with this */
1729 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1730
1731 resid = scsi_bufflen(cmd) - (blocks_done *
1732 cmd->device->sector_size);
1733
1734 scsi_set_resid(cmd, resid);
1735 cmd->result = DID_OK << 16;
1736
1737 /* Update protection tag */
1738 if (scsi_prot_sg_count(cmd)) {
1739 uint32_t i, j = 0, k = 0, num_ent;
1740 struct scatterlist *sg;
1741 struct sd_dif_tuple *spt;
1742
1743 /* Patch the corresponding protection tags */
1744 scsi_for_each_prot_sg(cmd, sg,
1745 scsi_prot_sg_count(cmd), i) {
1746 num_ent = sg_dma_len(sg) / 8;
1747 if (k + num_ent < blocks_done) {
1748 k += num_ent;
1749 continue;
1750 }
1751 j = blocks_done - k - 1;
1752 k = blocks_done;
1753 break;
1754 }
1755
1756 if (k != blocks_done) {
1757 ql_log(ql_log_warn, vha, 0x302f,
1758 "unexpected tag values tag:lba=%x:%llx)\n",
1759 e_ref_tag, (unsigned long long)lba_s);
1760 return 1;
1761 }
1762
1763 spt = page_address(sg_page(sg)) + sg->offset;
1764 spt += j;
1765
1766 spt->app_tag = 0xffff;
1767 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1768 spt->ref_tag = 0xffffffff;
1769 }
1770
1771 return 0;
1772 }
1773
1774 /* check guard */
1775 if (e_guard != a_guard) {
1776 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1777 0x10, 0x1);
1778 set_driver_byte(cmd, DRIVER_SENSE);
1779 set_host_byte(cmd, DID_ABORT);
1780 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1781 return 1;
1782 }
1783
1784 /* check ref tag */
1785 if (e_ref_tag != a_ref_tag) {
1786 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1787 0x10, 0x3);
1788 set_driver_byte(cmd, DRIVER_SENSE);
1789 set_host_byte(cmd, DID_ABORT);
1790 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1791 return 1;
1792 }
1793
1794 /* check appl tag */
1795 if (e_app_tag != a_app_tag) {
1796 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1797 0x10, 0x2);
1798 set_driver_byte(cmd, DRIVER_SENSE);
1799 set_host_byte(cmd, DID_ABORT);
1800 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1801 return 1;
1802 }
1803
1804 return 1;
1805 }
1806
1807 static void
1808 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1809 struct req_que *req, uint32_t index)
1810 {
1811 struct qla_hw_data *ha = vha->hw;
1812 srb_t *sp;
1813 uint16_t comp_status;
1814 uint16_t scsi_status;
1815 uint16_t thread_id;
1816 uint32_t rval = EXT_STATUS_OK;
1817 struct fc_bsg_job *bsg_job = NULL;
1818 sts_entry_t *sts;
1819 struct sts_entry_24xx *sts24;
1820 sts = (sts_entry_t *) pkt;
1821 sts24 = (struct sts_entry_24xx *) pkt;
1822
1823 /* Validate handle. */
1824 if (index >= req->num_outstanding_cmds) {
1825 ql_log(ql_log_warn, vha, 0x70af,
1826 "Invalid SCSI completion handle 0x%x.\n", index);
1827 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1828 return;
1829 }
1830
1831 sp = req->outstanding_cmds[index];
1832 if (sp) {
1833 /* Free outstanding command slot. */
1834 req->outstanding_cmds[index] = NULL;
1835 bsg_job = sp->u.bsg_job;
1836 } else {
1837 ql_log(ql_log_warn, vha, 0x70b0,
1838 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1839 req->id, index);
1840
1841 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1842 return;
1843 }
1844
1845 if (IS_FWI2_CAPABLE(ha)) {
1846 comp_status = le16_to_cpu(sts24->comp_status);
1847 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1848 } else {
1849 comp_status = le16_to_cpu(sts->comp_status);
1850 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1851 }
1852
1853 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1854 switch (comp_status) {
1855 case CS_COMPLETE:
1856 if (scsi_status == 0) {
1857 bsg_job->reply->reply_payload_rcv_len =
1858 bsg_job->reply_payload.payload_len;
1859 vha->qla_stats.input_bytes +=
1860 bsg_job->reply->reply_payload_rcv_len;
1861 vha->qla_stats.input_requests++;
1862 rval = EXT_STATUS_OK;
1863 }
1864 goto done;
1865
1866 case CS_DATA_OVERRUN:
1867 ql_dbg(ql_dbg_user, vha, 0x70b1,
1868 "Command completed with date overrun thread_id=%d\n",
1869 thread_id);
1870 rval = EXT_STATUS_DATA_OVERRUN;
1871 break;
1872
1873 case CS_DATA_UNDERRUN:
1874 ql_dbg(ql_dbg_user, vha, 0x70b2,
1875 "Command completed with date underrun thread_id=%d\n",
1876 thread_id);
1877 rval = EXT_STATUS_DATA_UNDERRUN;
1878 break;
1879 case CS_BIDIR_RD_OVERRUN:
1880 ql_dbg(ql_dbg_user, vha, 0x70b3,
1881 "Command completed with read data overrun thread_id=%d\n",
1882 thread_id);
1883 rval = EXT_STATUS_DATA_OVERRUN;
1884 break;
1885
1886 case CS_BIDIR_RD_WR_OVERRUN:
1887 ql_dbg(ql_dbg_user, vha, 0x70b4,
1888 "Command completed with read and write data overrun "
1889 "thread_id=%d\n", thread_id);
1890 rval = EXT_STATUS_DATA_OVERRUN;
1891 break;
1892
1893 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1894 ql_dbg(ql_dbg_user, vha, 0x70b5,
1895 "Command completed with read data over and write data "
1896 "underrun thread_id=%d\n", thread_id);
1897 rval = EXT_STATUS_DATA_OVERRUN;
1898 break;
1899
1900 case CS_BIDIR_RD_UNDERRUN:
1901 ql_dbg(ql_dbg_user, vha, 0x70b6,
1902 "Command completed with read data data underrun "
1903 "thread_id=%d\n", thread_id);
1904 rval = EXT_STATUS_DATA_UNDERRUN;
1905 break;
1906
1907 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1908 ql_dbg(ql_dbg_user, vha, 0x70b7,
1909 "Command completed with read data under and write data "
1910 "overrun thread_id=%d\n", thread_id);
1911 rval = EXT_STATUS_DATA_UNDERRUN;
1912 break;
1913
1914 case CS_BIDIR_RD_WR_UNDERRUN:
1915 ql_dbg(ql_dbg_user, vha, 0x70b8,
1916 "Command completed with read and write data underrun "
1917 "thread_id=%d\n", thread_id);
1918 rval = EXT_STATUS_DATA_UNDERRUN;
1919 break;
1920
1921 case CS_BIDIR_DMA:
1922 ql_dbg(ql_dbg_user, vha, 0x70b9,
1923 "Command completed with data DMA error thread_id=%d\n",
1924 thread_id);
1925 rval = EXT_STATUS_DMA_ERR;
1926 break;
1927
1928 case CS_TIMEOUT:
1929 ql_dbg(ql_dbg_user, vha, 0x70ba,
1930 "Command completed with timeout thread_id=%d\n",
1931 thread_id);
1932 rval = EXT_STATUS_TIMEOUT;
1933 break;
1934 default:
1935 ql_dbg(ql_dbg_user, vha, 0x70bb,
1936 "Command completed with completion status=0x%x "
1937 "thread_id=%d\n", comp_status, thread_id);
1938 rval = EXT_STATUS_ERR;
1939 break;
1940 }
1941 bsg_job->reply->reply_payload_rcv_len = 0;
1942
1943 done:
1944 /* Return the vendor specific reply to API */
1945 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1946 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1947 /* Always return DID_OK, bsg will send the vendor specific response
1948 * in this case only */
1949 sp->done(vha, sp, (DID_OK << 6));
1950
1951 }
1952
1953 /**
1954 * qla2x00_status_entry() - Process a Status IOCB entry.
1955 * @ha: SCSI driver HA context
1956 * @pkt: Entry pointer
1957 */
1958 static void
1959 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1960 {
1961 srb_t *sp;
1962 fc_port_t *fcport;
1963 struct scsi_cmnd *cp;
1964 sts_entry_t *sts;
1965 struct sts_entry_24xx *sts24;
1966 uint16_t comp_status;
1967 uint16_t scsi_status;
1968 uint16_t ox_id;
1969 uint8_t lscsi_status;
1970 int32_t resid;
1971 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1972 fw_resid_len;
1973 uint8_t *rsp_info, *sense_data;
1974 struct qla_hw_data *ha = vha->hw;
1975 uint32_t handle;
1976 uint16_t que;
1977 struct req_que *req;
1978 int logit = 1;
1979 int res = 0;
1980 uint16_t state_flags = 0;
1981
1982 sts = (sts_entry_t *) pkt;
1983 sts24 = (struct sts_entry_24xx *) pkt;
1984 if (IS_FWI2_CAPABLE(ha)) {
1985 comp_status = le16_to_cpu(sts24->comp_status);
1986 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1987 state_flags = le16_to_cpu(sts24->state_flags);
1988 } else {
1989 comp_status = le16_to_cpu(sts->comp_status);
1990 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1991 }
1992 handle = (uint32_t) LSW(sts->handle);
1993 que = MSW(sts->handle);
1994 req = ha->req_q_map[que];
1995
1996 /* Check for invalid queue pointer */
1997 if (req == NULL ||
1998 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
1999 ql_dbg(ql_dbg_io, vha, 0x3059,
2000 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2001 "que=%u.\n", sts->handle, req, que);
2002 return;
2003 }
2004
2005 /* Validate handle. */
2006 if (handle < req->num_outstanding_cmds)
2007 sp = req->outstanding_cmds[handle];
2008 else
2009 sp = NULL;
2010
2011 if (sp == NULL) {
2012 ql_dbg(ql_dbg_io, vha, 0x3017,
2013 "Invalid status handle (0x%x).\n", sts->handle);
2014
2015 if (IS_P3P_TYPE(ha))
2016 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2017 else
2018 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2019 qla2xxx_wake_dpc(vha);
2020 return;
2021 }
2022
2023 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2024 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2025 return;
2026 }
2027
2028 /* Fast path completion. */
2029 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2030 qla2x00_process_completed_request(vha, req, handle);
2031
2032 return;
2033 }
2034
2035 req->outstanding_cmds[handle] = NULL;
2036 cp = GET_CMD_SP(sp);
2037 if (cp == NULL) {
2038 ql_dbg(ql_dbg_io, vha, 0x3018,
2039 "Command already returned (0x%x/%p).\n",
2040 sts->handle, sp);
2041
2042 return;
2043 }
2044
2045 lscsi_status = scsi_status & STATUS_MASK;
2046
2047 fcport = sp->fcport;
2048
2049 ox_id = 0;
2050 sense_len = par_sense_len = rsp_info_len = resid_len =
2051 fw_resid_len = 0;
2052 if (IS_FWI2_CAPABLE(ha)) {
2053 if (scsi_status & SS_SENSE_LEN_VALID)
2054 sense_len = le32_to_cpu(sts24->sense_len);
2055 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2056 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2057 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2058 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2059 if (comp_status == CS_DATA_UNDERRUN)
2060 fw_resid_len = le32_to_cpu(sts24->residual_len);
2061 rsp_info = sts24->data;
2062 sense_data = sts24->data;
2063 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2064 ox_id = le16_to_cpu(sts24->ox_id);
2065 par_sense_len = sizeof(sts24->data);
2066 } else {
2067 if (scsi_status & SS_SENSE_LEN_VALID)
2068 sense_len = le16_to_cpu(sts->req_sense_length);
2069 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2070 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2071 resid_len = le32_to_cpu(sts->residual_length);
2072 rsp_info = sts->rsp_info;
2073 sense_data = sts->req_sense_data;
2074 par_sense_len = sizeof(sts->req_sense_data);
2075 }
2076
2077 /* Check for any FCP transport errors. */
2078 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2079 /* Sense data lies beyond any FCP RESPONSE data. */
2080 if (IS_FWI2_CAPABLE(ha)) {
2081 sense_data += rsp_info_len;
2082 par_sense_len -= rsp_info_len;
2083 }
2084 if (rsp_info_len > 3 && rsp_info[3]) {
2085 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2086 "FCP I/O protocol failure (0x%x/0x%x).\n",
2087 rsp_info_len, rsp_info[3]);
2088
2089 res = DID_BUS_BUSY << 16;
2090 goto out;
2091 }
2092 }
2093
2094 /* Check for overrun. */
2095 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2096 scsi_status & SS_RESIDUAL_OVER)
2097 comp_status = CS_DATA_OVERRUN;
2098
2099 /*
2100 * Based on Host and scsi status generate status code for Linux
2101 */
2102 switch (comp_status) {
2103 case CS_COMPLETE:
2104 case CS_QUEUE_FULL:
2105 if (scsi_status == 0) {
2106 res = DID_OK << 16;
2107 break;
2108 }
2109 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2110 resid = resid_len;
2111 scsi_set_resid(cp, resid);
2112
2113 if (!lscsi_status &&
2114 ((unsigned)(scsi_bufflen(cp) - resid) <
2115 cp->underflow)) {
2116 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2117 "Mid-layer underflow "
2118 "detected (0x%x of 0x%x bytes).\n",
2119 resid, scsi_bufflen(cp));
2120
2121 res = DID_ERROR << 16;
2122 break;
2123 }
2124 }
2125 res = DID_OK << 16 | lscsi_status;
2126
2127 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2128 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2129 "QUEUE FULL detected.\n");
2130 break;
2131 }
2132 logit = 0;
2133 if (lscsi_status != SS_CHECK_CONDITION)
2134 break;
2135
2136 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2137 if (!(scsi_status & SS_SENSE_LEN_VALID))
2138 break;
2139
2140 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2141 rsp, res);
2142 break;
2143
2144 case CS_DATA_UNDERRUN:
2145 /* Use F/W calculated residual length. */
2146 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2147 scsi_set_resid(cp, resid);
2148 if (scsi_status & SS_RESIDUAL_UNDER) {
2149 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2150 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2151 "Dropped frame(s) detected "
2152 "(0x%x of 0x%x bytes).\n",
2153 resid, scsi_bufflen(cp));
2154
2155 res = DID_ERROR << 16 | lscsi_status;
2156 goto check_scsi_status;
2157 }
2158
2159 if (!lscsi_status &&
2160 ((unsigned)(scsi_bufflen(cp) - resid) <
2161 cp->underflow)) {
2162 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2163 "Mid-layer underflow "
2164 "detected (0x%x of 0x%x bytes).\n",
2165 resid, scsi_bufflen(cp));
2166
2167 res = DID_ERROR << 16;
2168 break;
2169 }
2170 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2171 lscsi_status != SAM_STAT_BUSY) {
2172 /*
2173 * scsi status of task set and busy are considered to be
2174 * task not completed.
2175 */
2176
2177 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2178 "Dropped frame(s) detected (0x%x "
2179 "of 0x%x bytes).\n", resid,
2180 scsi_bufflen(cp));
2181
2182 res = DID_ERROR << 16 | lscsi_status;
2183 goto check_scsi_status;
2184 } else {
2185 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2186 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2187 scsi_status, lscsi_status);
2188 }
2189
2190 res = DID_OK << 16 | lscsi_status;
2191 logit = 0;
2192
2193 check_scsi_status:
2194 /*
2195 * Check to see if SCSI Status is non zero. If so report SCSI
2196 * Status.
2197 */
2198 if (lscsi_status != 0) {
2199 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2200 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2201 "QUEUE FULL detected.\n");
2202 logit = 1;
2203 break;
2204 }
2205 if (lscsi_status != SS_CHECK_CONDITION)
2206 break;
2207
2208 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2209 if (!(scsi_status & SS_SENSE_LEN_VALID))
2210 break;
2211
2212 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2213 sense_len, rsp, res);
2214 }
2215 break;
2216
2217 case CS_PORT_LOGGED_OUT:
2218 case CS_PORT_CONFIG_CHG:
2219 case CS_PORT_BUSY:
2220 case CS_INCOMPLETE:
2221 case CS_PORT_UNAVAILABLE:
2222 case CS_TIMEOUT:
2223 case CS_RESET:
2224
2225 /*
2226 * We are going to have the fc class block the rport
2227 * while we try to recover so instruct the mid layer
2228 * to requeue until the class decides how to handle this.
2229 */
2230 res = DID_TRANSPORT_DISRUPTED << 16;
2231
2232 if (comp_status == CS_TIMEOUT) {
2233 if (IS_FWI2_CAPABLE(ha))
2234 break;
2235 else if ((le16_to_cpu(sts->status_flags) &
2236 SF_LOGOUT_SENT) == 0)
2237 break;
2238 }
2239
2240 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2241 "Port to be marked lost on fcport=%02x%02x%02x, current "
2242 "port state= %s.\n", fcport->d_id.b.domain,
2243 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2244 port_state_str[atomic_read(&fcport->state)]);
2245
2246 if (atomic_read(&fcport->state) == FCS_ONLINE)
2247 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2248 break;
2249
2250 case CS_ABORTED:
2251 res = DID_RESET << 16;
2252 break;
2253
2254 case CS_DIF_ERROR:
2255 logit = qla2x00_handle_dif_error(sp, sts24);
2256 res = cp->result;
2257 break;
2258
2259 case CS_TRANSPORT:
2260 res = DID_ERROR << 16;
2261
2262 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2263 break;
2264
2265 if (state_flags & BIT_4)
2266 scmd_printk(KERN_WARNING, cp,
2267 "Unsupported device '%s' found.\n",
2268 cp->device->vendor);
2269 break;
2270
2271 default:
2272 res = DID_ERROR << 16;
2273 break;
2274 }
2275
2276 out:
2277 if (logit)
2278 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2279 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%d "
2280 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2281 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2282 comp_status, scsi_status, res, vha->host_no,
2283 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2284 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2285 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2286 resid_len, fw_resid_len);
2287
2288 if (rsp->status_srb == NULL)
2289 sp->done(ha, sp, res);
2290 }
2291
2292 /**
2293 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2294 * @ha: SCSI driver HA context
2295 * @pkt: Entry pointer
2296 *
2297 * Extended sense data.
2298 */
2299 static void
2300 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2301 {
2302 uint8_t sense_sz = 0;
2303 struct qla_hw_data *ha = rsp->hw;
2304 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2305 srb_t *sp = rsp->status_srb;
2306 struct scsi_cmnd *cp;
2307 uint32_t sense_len;
2308 uint8_t *sense_ptr;
2309
2310 if (!sp || !GET_CMD_SENSE_LEN(sp))
2311 return;
2312
2313 sense_len = GET_CMD_SENSE_LEN(sp);
2314 sense_ptr = GET_CMD_SENSE_PTR(sp);
2315
2316 cp = GET_CMD_SP(sp);
2317 if (cp == NULL) {
2318 ql_log(ql_log_warn, vha, 0x3025,
2319 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2320
2321 rsp->status_srb = NULL;
2322 return;
2323 }
2324
2325 if (sense_len > sizeof(pkt->data))
2326 sense_sz = sizeof(pkt->data);
2327 else
2328 sense_sz = sense_len;
2329
2330 /* Move sense data. */
2331 if (IS_FWI2_CAPABLE(ha))
2332 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2333 memcpy(sense_ptr, pkt->data, sense_sz);
2334 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2335 sense_ptr, sense_sz);
2336
2337 sense_len -= sense_sz;
2338 sense_ptr += sense_sz;
2339
2340 SET_CMD_SENSE_PTR(sp, sense_ptr);
2341 SET_CMD_SENSE_LEN(sp, sense_len);
2342
2343 /* Place command on done queue. */
2344 if (sense_len == 0) {
2345 rsp->status_srb = NULL;
2346 sp->done(ha, sp, cp->result);
2347 }
2348 }
2349
2350 /**
2351 * qla2x00_error_entry() - Process an error entry.
2352 * @ha: SCSI driver HA context
2353 * @pkt: Entry pointer
2354 */
2355 static void
2356 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2357 {
2358 srb_t *sp;
2359 struct qla_hw_data *ha = vha->hw;
2360 const char func[] = "ERROR-IOCB";
2361 uint16_t que = MSW(pkt->handle);
2362 struct req_que *req = NULL;
2363 int res = DID_ERROR << 16;
2364
2365 ql_dbg(ql_dbg_async, vha, 0x502a,
2366 "type of error status in response: 0x%x\n", pkt->entry_status);
2367
2368 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2369 goto fatal;
2370
2371 req = ha->req_q_map[que];
2372
2373 if (pkt->entry_status & RF_BUSY)
2374 res = DID_BUS_BUSY << 16;
2375
2376 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2377 if (sp) {
2378 sp->done(ha, sp, res);
2379 return;
2380 }
2381 fatal:
2382 ql_log(ql_log_warn, vha, 0x5030,
2383 "Error entry - invalid handle/queue.\n");
2384
2385 if (IS_P3P_TYPE(ha))
2386 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2387 else
2388 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2389 qla2xxx_wake_dpc(vha);
2390 }
2391
2392 /**
2393 * qla24xx_mbx_completion() - Process mailbox command completions.
2394 * @ha: SCSI driver HA context
2395 * @mb0: Mailbox0 register
2396 */
2397 static void
2398 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2399 {
2400 uint16_t cnt;
2401 uint32_t mboxes;
2402 uint16_t __iomem *wptr;
2403 struct qla_hw_data *ha = vha->hw;
2404 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2405
2406 /* Read all mbox registers? */
2407 mboxes = (1 << ha->mbx_count) - 1;
2408 if (!ha->mcp)
2409 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2410 else
2411 mboxes = ha->mcp->in_mb;
2412
2413 /* Load return mailbox registers. */
2414 ha->flags.mbox_int = 1;
2415 ha->mailbox_out[0] = mb0;
2416 mboxes >>= 1;
2417 wptr = (uint16_t __iomem *)&reg->mailbox1;
2418
2419 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2420 if (mboxes & BIT_0)
2421 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2422
2423 mboxes >>= 1;
2424 wptr++;
2425 }
2426 }
2427
2428 /**
2429 * qla24xx_process_response_queue() - Process response queue entries.
2430 * @ha: SCSI driver HA context
2431 */
2432 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2433 struct rsp_que *rsp)
2434 {
2435 struct sts_entry_24xx *pkt;
2436 struct qla_hw_data *ha = vha->hw;
2437
2438 if (!vha->flags.online)
2439 return;
2440
2441 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2442 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2443
2444 rsp->ring_index++;
2445 if (rsp->ring_index == rsp->length) {
2446 rsp->ring_index = 0;
2447 rsp->ring_ptr = rsp->ring;
2448 } else {
2449 rsp->ring_ptr++;
2450 }
2451
2452 if (pkt->entry_status != 0) {
2453 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2454
2455 (void)qlt_24xx_process_response_error(vha, pkt);
2456
2457 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2458 wmb();
2459 continue;
2460 }
2461
2462 switch (pkt->entry_type) {
2463 case STATUS_TYPE:
2464 qla2x00_status_entry(vha, rsp, pkt);
2465 break;
2466 case STATUS_CONT_TYPE:
2467 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2468 break;
2469 case VP_RPT_ID_IOCB_TYPE:
2470 qla24xx_report_id_acquisition(vha,
2471 (struct vp_rpt_id_entry_24xx *)pkt);
2472 break;
2473 case LOGINOUT_PORT_IOCB_TYPE:
2474 qla24xx_logio_entry(vha, rsp->req,
2475 (struct logio_entry_24xx *)pkt);
2476 break;
2477 case TSK_MGMT_IOCB_TYPE:
2478 qla24xx_tm_iocb_entry(vha, rsp->req,
2479 (struct tsk_mgmt_entry *)pkt);
2480 break;
2481 case CT_IOCB_TYPE:
2482 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2483 break;
2484 case ELS_IOCB_TYPE:
2485 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2486 break;
2487 case ABTS_RECV_24XX:
2488 /* ensure that the ATIO queue is empty */
2489 qlt_24xx_process_atio_queue(vha);
2490 case ABTS_RESP_24XX:
2491 case CTIO_TYPE7:
2492 case NOTIFY_ACK_TYPE:
2493 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2494 break;
2495 case MARKER_TYPE:
2496 /* Do nothing in this case, this check is to prevent it
2497 * from falling into default case
2498 */
2499 break;
2500 default:
2501 /* Type Not Supported. */
2502 ql_dbg(ql_dbg_async, vha, 0x5042,
2503 "Received unknown response pkt type %x "
2504 "entry status=%x.\n",
2505 pkt->entry_type, pkt->entry_status);
2506 break;
2507 }
2508 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2509 wmb();
2510 }
2511
2512 /* Adjust ring index */
2513 if (IS_P3P_TYPE(ha)) {
2514 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2515 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2516 } else
2517 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2518 }
2519
2520 static void
2521 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2522 {
2523 int rval;
2524 uint32_t cnt;
2525 struct qla_hw_data *ha = vha->hw;
2526 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2527
2528 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
2529 return;
2530
2531 rval = QLA_SUCCESS;
2532 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2533 RD_REG_DWORD(&reg->iobase_addr);
2534 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2535 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2536 rval == QLA_SUCCESS; cnt--) {
2537 if (cnt) {
2538 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2539 udelay(10);
2540 } else
2541 rval = QLA_FUNCTION_TIMEOUT;
2542 }
2543 if (rval == QLA_SUCCESS)
2544 goto next_test;
2545
2546 rval = QLA_SUCCESS;
2547 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2548 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2549 rval == QLA_SUCCESS; cnt--) {
2550 if (cnt) {
2551 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2552 udelay(10);
2553 } else
2554 rval = QLA_FUNCTION_TIMEOUT;
2555 }
2556 if (rval != QLA_SUCCESS)
2557 goto done;
2558
2559 next_test:
2560 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2561 ql_log(ql_log_info, vha, 0x504c,
2562 "Additional code -- 0x55AA.\n");
2563
2564 done:
2565 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2566 RD_REG_DWORD(&reg->iobase_window);
2567 }
2568
2569 /**
2570 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2571 * @irq:
2572 * @dev_id: SCSI driver HA context
2573 *
2574 * Called by system whenever the host adapter generates an interrupt.
2575 *
2576 * Returns handled flag.
2577 */
2578 irqreturn_t
2579 qla24xx_intr_handler(int irq, void *dev_id)
2580 {
2581 scsi_qla_host_t *vha;
2582 struct qla_hw_data *ha;
2583 struct device_reg_24xx __iomem *reg;
2584 int status;
2585 unsigned long iter;
2586 uint32_t stat;
2587 uint32_t hccr;
2588 uint16_t mb[8];
2589 struct rsp_que *rsp;
2590 unsigned long flags;
2591
2592 rsp = (struct rsp_que *) dev_id;
2593 if (!rsp) {
2594 ql_log(ql_log_info, NULL, 0x5059,
2595 "%s: NULL response queue pointer.\n", __func__);
2596 return IRQ_NONE;
2597 }
2598
2599 ha = rsp->hw;
2600 reg = &ha->iobase->isp24;
2601 status = 0;
2602
2603 if (unlikely(pci_channel_offline(ha->pdev)))
2604 return IRQ_HANDLED;
2605
2606 spin_lock_irqsave(&ha->hardware_lock, flags);
2607 vha = pci_get_drvdata(ha->pdev);
2608 for (iter = 50; iter--; ) {
2609 stat = RD_REG_DWORD(&reg->host_status);
2610 if (qla2x00_check_reg_for_disconnect(vha, stat))
2611 break;
2612 if (stat & HSRX_RISC_PAUSED) {
2613 if (unlikely(pci_channel_offline(ha->pdev)))
2614 break;
2615
2616 hccr = RD_REG_DWORD(&reg->hccr);
2617
2618 ql_log(ql_log_warn, vha, 0x504b,
2619 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2620 hccr);
2621
2622 qla2xxx_check_risc_status(vha);
2623
2624 ha->isp_ops->fw_dump(vha, 1);
2625 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2626 break;
2627 } else if ((stat & HSRX_RISC_INT) == 0)
2628 break;
2629
2630 switch (stat & 0xff) {
2631 case INTR_ROM_MB_SUCCESS:
2632 case INTR_ROM_MB_FAILED:
2633 case INTR_MB_SUCCESS:
2634 case INTR_MB_FAILED:
2635 qla24xx_mbx_completion(vha, MSW(stat));
2636 status |= MBX_INTERRUPT;
2637
2638 break;
2639 case INTR_ASYNC_EVENT:
2640 mb[0] = MSW(stat);
2641 mb[1] = RD_REG_WORD(&reg->mailbox1);
2642 mb[2] = RD_REG_WORD(&reg->mailbox2);
2643 mb[3] = RD_REG_WORD(&reg->mailbox3);
2644 qla2x00_async_event(vha, rsp, mb);
2645 break;
2646 case INTR_RSP_QUE_UPDATE:
2647 case INTR_RSP_QUE_UPDATE_83XX:
2648 qla24xx_process_response_queue(vha, rsp);
2649 break;
2650 case INTR_ATIO_QUE_UPDATE:
2651 qlt_24xx_process_atio_queue(vha);
2652 break;
2653 case INTR_ATIO_RSP_QUE_UPDATE:
2654 qlt_24xx_process_atio_queue(vha);
2655 qla24xx_process_response_queue(vha, rsp);
2656 break;
2657 default:
2658 ql_dbg(ql_dbg_async, vha, 0x504f,
2659 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2660 break;
2661 }
2662 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2663 RD_REG_DWORD_RELAXED(&reg->hccr);
2664 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2665 ndelay(3500);
2666 }
2667 qla2x00_handle_mbx_completion(ha, status);
2668 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2669
2670 return IRQ_HANDLED;
2671 }
2672
2673 static irqreturn_t
2674 qla24xx_msix_rsp_q(int irq, void *dev_id)
2675 {
2676 struct qla_hw_data *ha;
2677 struct rsp_que *rsp;
2678 struct device_reg_24xx __iomem *reg;
2679 struct scsi_qla_host *vha;
2680 unsigned long flags;
2681 uint32_t stat = 0;
2682
2683 rsp = (struct rsp_que *) dev_id;
2684 if (!rsp) {
2685 ql_log(ql_log_info, NULL, 0x505a,
2686 "%s: NULL response queue pointer.\n", __func__);
2687 return IRQ_NONE;
2688 }
2689 ha = rsp->hw;
2690 reg = &ha->iobase->isp24;
2691
2692 spin_lock_irqsave(&ha->hardware_lock, flags);
2693
2694 vha = pci_get_drvdata(ha->pdev);
2695 /*
2696 * Use host_status register to check to PCI disconnection before we
2697 * we process the response queue.
2698 */
2699 stat = RD_REG_DWORD(&reg->host_status);
2700 if (qla2x00_check_reg_for_disconnect(vha, stat))
2701 goto out;
2702 qla24xx_process_response_queue(vha, rsp);
2703 if (!ha->flags.disable_msix_handshake) {
2704 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2705 RD_REG_DWORD_RELAXED(&reg->hccr);
2706 }
2707 out:
2708 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2709
2710 return IRQ_HANDLED;
2711 }
2712
2713 static irqreturn_t
2714 qla25xx_msix_rsp_q(int irq, void *dev_id)
2715 {
2716 struct qla_hw_data *ha;
2717 scsi_qla_host_t *vha;
2718 struct rsp_que *rsp;
2719 struct device_reg_24xx __iomem *reg;
2720 unsigned long flags;
2721 uint32_t hccr = 0;
2722
2723 rsp = (struct rsp_que *) dev_id;
2724 if (!rsp) {
2725 ql_log(ql_log_info, NULL, 0x505b,
2726 "%s: NULL response queue pointer.\n", __func__);
2727 return IRQ_NONE;
2728 }
2729 ha = rsp->hw;
2730 vha = pci_get_drvdata(ha->pdev);
2731
2732 /* Clear the interrupt, if enabled, for this response queue */
2733 if (!ha->flags.disable_msix_handshake) {
2734 reg = &ha->iobase->isp24;
2735 spin_lock_irqsave(&ha->hardware_lock, flags);
2736 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2737 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2738 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2739 }
2740 if (qla2x00_check_reg_for_disconnect(vha, hccr))
2741 goto out;
2742 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2743
2744 out:
2745 return IRQ_HANDLED;
2746 }
2747
2748 static irqreturn_t
2749 qla24xx_msix_default(int irq, void *dev_id)
2750 {
2751 scsi_qla_host_t *vha;
2752 struct qla_hw_data *ha;
2753 struct rsp_que *rsp;
2754 struct device_reg_24xx __iomem *reg;
2755 int status;
2756 uint32_t stat;
2757 uint32_t hccr;
2758 uint16_t mb[8];
2759 unsigned long flags;
2760
2761 rsp = (struct rsp_que *) dev_id;
2762 if (!rsp) {
2763 ql_log(ql_log_info, NULL, 0x505c,
2764 "%s: NULL response queue pointer.\n", __func__);
2765 return IRQ_NONE;
2766 }
2767 ha = rsp->hw;
2768 reg = &ha->iobase->isp24;
2769 status = 0;
2770
2771 spin_lock_irqsave(&ha->hardware_lock, flags);
2772 vha = pci_get_drvdata(ha->pdev);
2773 do {
2774 stat = RD_REG_DWORD(&reg->host_status);
2775 if (qla2x00_check_reg_for_disconnect(vha, stat))
2776 break;
2777 if (stat & HSRX_RISC_PAUSED) {
2778 if (unlikely(pci_channel_offline(ha->pdev)))
2779 break;
2780
2781 hccr = RD_REG_DWORD(&reg->hccr);
2782
2783 ql_log(ql_log_info, vha, 0x5050,
2784 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2785 hccr);
2786
2787 qla2xxx_check_risc_status(vha);
2788
2789 ha->isp_ops->fw_dump(vha, 1);
2790 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2791 break;
2792 } else if ((stat & HSRX_RISC_INT) == 0)
2793 break;
2794
2795 switch (stat & 0xff) {
2796 case INTR_ROM_MB_SUCCESS:
2797 case INTR_ROM_MB_FAILED:
2798 case INTR_MB_SUCCESS:
2799 case INTR_MB_FAILED:
2800 qla24xx_mbx_completion(vha, MSW(stat));
2801 status |= MBX_INTERRUPT;
2802
2803 break;
2804 case INTR_ASYNC_EVENT:
2805 mb[0] = MSW(stat);
2806 mb[1] = RD_REG_WORD(&reg->mailbox1);
2807 mb[2] = RD_REG_WORD(&reg->mailbox2);
2808 mb[3] = RD_REG_WORD(&reg->mailbox3);
2809 qla2x00_async_event(vha, rsp, mb);
2810 break;
2811 case INTR_RSP_QUE_UPDATE:
2812 case INTR_RSP_QUE_UPDATE_83XX:
2813 qla24xx_process_response_queue(vha, rsp);
2814 break;
2815 case INTR_ATIO_QUE_UPDATE:
2816 qlt_24xx_process_atio_queue(vha);
2817 break;
2818 case INTR_ATIO_RSP_QUE_UPDATE:
2819 qlt_24xx_process_atio_queue(vha);
2820 qla24xx_process_response_queue(vha, rsp);
2821 break;
2822 default:
2823 ql_dbg(ql_dbg_async, vha, 0x5051,
2824 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2825 break;
2826 }
2827 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2828 } while (0);
2829 qla2x00_handle_mbx_completion(ha, status);
2830 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2831
2832 return IRQ_HANDLED;
2833 }
2834
2835 /* Interrupt handling helpers. */
2836
2837 struct qla_init_msix_entry {
2838 const char *name;
2839 irq_handler_t handler;
2840 };
2841
2842 static struct qla_init_msix_entry msix_entries[3] = {
2843 { "qla2xxx (default)", qla24xx_msix_default },
2844 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2845 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2846 };
2847
2848 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2849 { "qla2xxx (default)", qla82xx_msix_default },
2850 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2851 };
2852
2853 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2854 { "qla2xxx (default)", qla24xx_msix_default },
2855 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2856 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2857 };
2858
2859 static void
2860 qla24xx_disable_msix(struct qla_hw_data *ha)
2861 {
2862 int i;
2863 struct qla_msix_entry *qentry;
2864 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2865
2866 for (i = 0; i < ha->msix_count; i++) {
2867 qentry = &ha->msix_entries[i];
2868 if (qentry->have_irq)
2869 free_irq(qentry->vector, qentry->rsp);
2870 }
2871 pci_disable_msix(ha->pdev);
2872 kfree(ha->msix_entries);
2873 ha->msix_entries = NULL;
2874 ha->flags.msix_enabled = 0;
2875 ql_dbg(ql_dbg_init, vha, 0x0042,
2876 "Disabled the MSI.\n");
2877 }
2878
2879 static int
2880 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2881 {
2882 #define MIN_MSIX_COUNT 2
2883 int i, ret;
2884 struct msix_entry *entries;
2885 struct qla_msix_entry *qentry;
2886 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2887
2888 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2889 GFP_KERNEL);
2890 if (!entries) {
2891 ql_log(ql_log_warn, vha, 0x00bc,
2892 "Failed to allocate memory for msix_entry.\n");
2893 return -ENOMEM;
2894 }
2895
2896 for (i = 0; i < ha->msix_count; i++)
2897 entries[i].entry = i;
2898
2899 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2900 if (ret) {
2901 if (ret < MIN_MSIX_COUNT)
2902 goto msix_failed;
2903
2904 ql_log(ql_log_warn, vha, 0x00c6,
2905 "MSI-X: Failed to enable support "
2906 "-- %d/%d\n Retry with %d vectors.\n",
2907 ha->msix_count, ret, ret);
2908 ha->msix_count = ret;
2909 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2910 if (ret) {
2911 msix_failed:
2912 ql_log(ql_log_fatal, vha, 0x00c7,
2913 "MSI-X: Failed to enable support, "
2914 "giving up -- %d/%d.\n",
2915 ha->msix_count, ret);
2916 goto msix_out;
2917 }
2918 ha->max_rsp_queues = ha->msix_count - 1;
2919 }
2920 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2921 ha->msix_count, GFP_KERNEL);
2922 if (!ha->msix_entries) {
2923 ql_log(ql_log_fatal, vha, 0x00c8,
2924 "Failed to allocate memory for ha->msix_entries.\n");
2925 ret = -ENOMEM;
2926 goto msix_out;
2927 }
2928 ha->flags.msix_enabled = 1;
2929
2930 for (i = 0; i < ha->msix_count; i++) {
2931 qentry = &ha->msix_entries[i];
2932 qentry->vector = entries[i].vector;
2933 qentry->entry = entries[i].entry;
2934 qentry->have_irq = 0;
2935 qentry->rsp = NULL;
2936 }
2937
2938 /* Enable MSI-X vectors for the base queue */
2939 for (i = 0; i < ha->msix_count; i++) {
2940 qentry = &ha->msix_entries[i];
2941 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
2942 ret = request_irq(qentry->vector,
2943 qla83xx_msix_entries[i].handler,
2944 0, qla83xx_msix_entries[i].name, rsp);
2945 } else if (IS_P3P_TYPE(ha)) {
2946 ret = request_irq(qentry->vector,
2947 qla82xx_msix_entries[i].handler,
2948 0, qla82xx_msix_entries[i].name, rsp);
2949 } else {
2950 ret = request_irq(qentry->vector,
2951 msix_entries[i].handler,
2952 0, msix_entries[i].name, rsp);
2953 }
2954 if (ret) {
2955 ql_log(ql_log_fatal, vha, 0x00cb,
2956 "MSI-X: unable to register handler -- %x/%d.\n",
2957 qentry->vector, ret);
2958 qla24xx_disable_msix(ha);
2959 ha->mqenable = 0;
2960 goto msix_out;
2961 }
2962 qentry->have_irq = 1;
2963 qentry->rsp = rsp;
2964 rsp->msix = qentry;
2965 }
2966
2967 /* Enable MSI-X vector for response queue update for queue 0 */
2968 if (IS_QLA83XX(ha)) {
2969 if (ha->msixbase && ha->mqiobase &&
2970 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2971 ha->mqenable = 1;
2972 } else
2973 if (ha->mqiobase
2974 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2975 ha->mqenable = 1;
2976 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2977 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2978 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2979 ql_dbg(ql_dbg_init, vha, 0x0055,
2980 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2981 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2982
2983 msix_out:
2984 kfree(entries);
2985 return ret;
2986 }
2987
2988 int
2989 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2990 {
2991 int ret = QLA_FUNCTION_FAILED;
2992 device_reg_t __iomem *reg = ha->iobase;
2993 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2994
2995 /* If possible, enable MSI-X. */
2996 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2997 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha))
2998 goto skip_msi;
2999
3000 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3001 (ha->pdev->subsystem_device == 0x7040 ||
3002 ha->pdev->subsystem_device == 0x7041 ||
3003 ha->pdev->subsystem_device == 0x1705)) {
3004 ql_log(ql_log_warn, vha, 0x0034,
3005 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3006 ha->pdev->subsystem_vendor,
3007 ha->pdev->subsystem_device);
3008 goto skip_msi;
3009 }
3010
3011 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3012 ql_log(ql_log_warn, vha, 0x0035,
3013 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3014 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3015 goto skip_msix;
3016 }
3017
3018 ret = qla24xx_enable_msix(ha, rsp);
3019 if (!ret) {
3020 ql_dbg(ql_dbg_init, vha, 0x0036,
3021 "MSI-X: Enabled (0x%X, 0x%X).\n",
3022 ha->chip_revision, ha->fw_attributes);
3023 goto clear_risc_ints;
3024 }
3025
3026 skip_msix:
3027
3028 ql_log(ql_log_info, vha, 0x0037,
3029 "Falling back-to MSI mode -%d.\n", ret);
3030
3031 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3032 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha))
3033 goto skip_msi;
3034
3035 ret = pci_enable_msi(ha->pdev);
3036 if (!ret) {
3037 ql_dbg(ql_dbg_init, vha, 0x0038,
3038 "MSI: Enabled.\n");
3039 ha->flags.msi_enabled = 1;
3040 } else
3041 ql_log(ql_log_warn, vha, 0x0039,
3042 "Falling back-to INTa mode -- %d.\n", ret);
3043 skip_msi:
3044
3045 /* Skip INTx on ISP82xx. */
3046 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3047 return QLA_FUNCTION_FAILED;
3048
3049 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3050 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3051 QLA2XXX_DRIVER_NAME, rsp);
3052 if (ret) {
3053 ql_log(ql_log_warn, vha, 0x003a,
3054 "Failed to reserve interrupt %d already in use.\n",
3055 ha->pdev->irq);
3056 goto fail;
3057 } else if (!ha->flags.msi_enabled) {
3058 ql_dbg(ql_dbg_init, vha, 0x0125,
3059 "INTa mode: Enabled.\n");
3060 ha->flags.mr_intr_valid = 1;
3061 }
3062
3063 clear_risc_ints:
3064
3065 spin_lock_irq(&ha->hardware_lock);
3066 if (!IS_FWI2_CAPABLE(ha))
3067 WRT_REG_WORD(&reg->isp.semaphore, 0);
3068 spin_unlock_irq(&ha->hardware_lock);
3069
3070 fail:
3071 return ret;
3072 }
3073
3074 void
3075 qla2x00_free_irqs(scsi_qla_host_t *vha)
3076 {
3077 struct qla_hw_data *ha = vha->hw;
3078 struct rsp_que *rsp;
3079
3080 /*
3081 * We need to check that ha->rsp_q_map is valid in case we are called
3082 * from a probe failure context.
3083 */
3084 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3085 return;
3086 rsp = ha->rsp_q_map[0];
3087
3088 if (ha->flags.msix_enabled)
3089 qla24xx_disable_msix(ha);
3090 else if (ha->flags.msi_enabled) {
3091 free_irq(ha->pdev->irq, rsp);
3092 pci_disable_msi(ha->pdev);
3093 } else
3094 free_irq(ha->pdev->irq, rsp);
3095 }
3096
3097
3098 int qla25xx_request_irq(struct rsp_que *rsp)
3099 {
3100 struct qla_hw_data *ha = rsp->hw;
3101 struct qla_init_msix_entry *intr = &msix_entries[2];
3102 struct qla_msix_entry *msix = rsp->msix;
3103 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3104 int ret;
3105
3106 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3107 if (ret) {
3108 ql_log(ql_log_fatal, vha, 0x00e6,
3109 "MSI-X: Unable to register handler -- %x/%d.\n",
3110 msix->vector, ret);
3111 return ret;
3112 }
3113 msix->have_irq = 1;
3114 msix->rsp = rsp;
3115 return ret;
3116 }
Linux with added FPC-III support