projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
[SCSI] qla2xxx: Extra loopback error handling for ISP83xx.
[deliverable/linux.git] / drivers / scsi / qla2xxx / qla_isr.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2012 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 #include "qla_target.h"
17
18 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
19 static void qla2x00_process_completed_request(struct scsi_qla_host *,
20 struct req_que *, uint32_t);
21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
23 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
24 sts_entry_t *);
25
26 /**
27 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
28 * @irq:
29 * @dev_id: SCSI driver HA context
30 *
31 * Called by system whenever the host adapter generates an interrupt.
32 *
33 * Returns handled flag.
34 */
35 irqreturn_t
36 qla2100_intr_handler(int irq, void *dev_id)
37 {
38 scsi_qla_host_t *vha;
39 struct qla_hw_data *ha;
40 struct device_reg_2xxx __iomem *reg;
41 int status;
42 unsigned long iter;
43 uint16_t hccr;
44 uint16_t mb[4];
45 struct rsp_que *rsp;
46 unsigned long flags;
47
48 rsp = (struct rsp_que *) dev_id;
49 if (!rsp) {
50 ql_log(ql_log_info, NULL, 0x505d,
51 "%s: NULL response queue pointer.\n", __func__);
52 return (IRQ_NONE);
53 }
54
55 ha = rsp->hw;
56 reg = &ha->iobase->isp;
57 status = 0;
58
59 spin_lock_irqsave(&ha->hardware_lock, flags);
60 vha = pci_get_drvdata(ha->pdev);
61 for (iter = 50; iter--; ) {
62 hccr = RD_REG_WORD(&reg->hccr);
63 if (hccr & HCCR_RISC_PAUSE) {
64 if (pci_channel_offline(ha->pdev))
65 break;
66
67 /*
68 * Issue a "HARD" reset in order for the RISC interrupt
69 * bit to be cleared. Schedule a big hammer to get
70 * out of the RISC PAUSED state.
71 */
72 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
73 RD_REG_WORD(&reg->hccr);
74
75 ha->isp_ops->fw_dump(vha, 1);
76 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
77 break;
78 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
79 break;
80
81 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
82 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
83 RD_REG_WORD(&reg->hccr);
84
85 /* Get mailbox data. */
86 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
87 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
88 qla2x00_mbx_completion(vha, mb[0]);
89 status |= MBX_INTERRUPT;
90 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
91 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
92 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
93 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
94 qla2x00_async_event(vha, rsp, mb);
95 } else {
96 /*EMPTY*/
97 ql_dbg(ql_dbg_async, vha, 0x5025,
98 "Unrecognized interrupt type (%d).\n",
99 mb[0]);
100 }
101 /* Release mailbox registers. */
102 WRT_REG_WORD(&reg->semaphore, 0);
103 RD_REG_WORD(&reg->semaphore);
104 } else {
105 qla2x00_process_response_queue(rsp);
106
107 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
108 RD_REG_WORD(&reg->hccr);
109 }
110 }
111 spin_unlock_irqrestore(&ha->hardware_lock, flags);
112
113 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
114 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
115 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
116 complete(&ha->mbx_intr_comp);
117 }
118
119 return (IRQ_HANDLED);
120 }
121
122 /**
123 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
124 * @irq:
125 * @dev_id: SCSI driver HA context
126 *
127 * Called by system whenever the host adapter generates an interrupt.
128 *
129 * Returns handled flag.
130 */
131 irqreturn_t
132 qla2300_intr_handler(int irq, void *dev_id)
133 {
134 scsi_qla_host_t *vha;
135 struct device_reg_2xxx __iomem *reg;
136 int status;
137 unsigned long iter;
138 uint32_t stat;
139 uint16_t hccr;
140 uint16_t mb[4];
141 struct rsp_que *rsp;
142 struct qla_hw_data *ha;
143 unsigned long flags;
144
145 rsp = (struct rsp_que *) dev_id;
146 if (!rsp) {
147 ql_log(ql_log_info, NULL, 0x5058,
148 "%s: NULL response queue pointer.\n", __func__);
149 return (IRQ_NONE);
150 }
151
152 ha = rsp->hw;
153 reg = &ha->iobase->isp;
154 status = 0;
155
156 spin_lock_irqsave(&ha->hardware_lock, flags);
157 vha = pci_get_drvdata(ha->pdev);
158 for (iter = 50; iter--; ) {
159 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
160 if (stat & HSR_RISC_PAUSED) {
161 if (unlikely(pci_channel_offline(ha->pdev)))
162 break;
163
164 hccr = RD_REG_WORD(&reg->hccr);
165 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
166 ql_log(ql_log_warn, vha, 0x5026,
167 "Parity error -- HCCR=%x, Dumping "
168 "firmware.\n", hccr);
169 else
170 ql_log(ql_log_warn, vha, 0x5027,
171 "RISC paused -- HCCR=%x, Dumping "
172 "firmware.\n", hccr);
173
174 /*
175 * Issue a "HARD" reset in order for the RISC
176 * interrupt bit to be cleared. Schedule a big
177 * hammer to get out of the RISC PAUSED state.
178 */
179 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
180 RD_REG_WORD(&reg->hccr);
181
182 ha->isp_ops->fw_dump(vha, 1);
183 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
184 break;
185 } else if ((stat & HSR_RISC_INT) == 0)
186 break;
187
188 switch (stat & 0xff) {
189 case 0x1:
190 case 0x2:
191 case 0x10:
192 case 0x11:
193 qla2x00_mbx_completion(vha, MSW(stat));
194 status |= MBX_INTERRUPT;
195
196 /* Release mailbox registers. */
197 WRT_REG_WORD(&reg->semaphore, 0);
198 break;
199 case 0x12:
200 mb[0] = MSW(stat);
201 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
202 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
203 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
204 qla2x00_async_event(vha, rsp, mb);
205 break;
206 case 0x13:
207 qla2x00_process_response_queue(rsp);
208 break;
209 case 0x15:
210 mb[0] = MBA_CMPLT_1_16BIT;
211 mb[1] = MSW(stat);
212 qla2x00_async_event(vha, rsp, mb);
213 break;
214 case 0x16:
215 mb[0] = MBA_SCSI_COMPLETION;
216 mb[1] = MSW(stat);
217 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
218 qla2x00_async_event(vha, rsp, mb);
219 break;
220 default:
221 ql_dbg(ql_dbg_async, vha, 0x5028,
222 "Unrecognized interrupt type (%d).\n", stat & 0xff);
223 break;
224 }
225 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
226 RD_REG_WORD_RELAXED(&reg->hccr);
227 }
228 spin_unlock_irqrestore(&ha->hardware_lock, flags);
229
230 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
231 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
232 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
233 complete(&ha->mbx_intr_comp);
234 }
235
236 return (IRQ_HANDLED);
237 }
238
239 /**
240 * qla2x00_mbx_completion() - Process mailbox command completions.
241 * @ha: SCSI driver HA context
242 * @mb0: Mailbox0 register
243 */
244 static void
245 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
246 {
247 uint16_t cnt;
248 uint32_t mboxes;
249 uint16_t __iomem *wptr;
250 struct qla_hw_data *ha = vha->hw;
251 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
252
253 /* Read all mbox registers? */
254 mboxes = (1 << ha->mbx_count) - 1;
255 if (!ha->mcp)
256 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
257 else
258 mboxes = ha->mcp->in_mb;
259
260 /* Load return mailbox registers. */
261 ha->flags.mbox_int = 1;
262 ha->mailbox_out[0] = mb0;
263 mboxes >>= 1;
264 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
265
266 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
267 if (IS_QLA2200(ha) && cnt == 8)
268 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
269 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
270 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
271 else if (mboxes & BIT_0)
272 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
273
274 wptr++;
275 mboxes >>= 1;
276 }
277 }
278
279 static void
280 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
281 {
282 static char *event[] =
283 { "Complete", "Request Notification", "Time Extension" };
284 int rval;
285 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
286 uint16_t __iomem *wptr;
287 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
288
289 /* Seed data -- mailbox1 -> mailbox7. */
290 wptr = (uint16_t __iomem *)&reg24->mailbox1;
291 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
292 mb[cnt] = RD_REG_WORD(wptr);
293
294 ql_dbg(ql_dbg_async, vha, 0x5021,
295 "Inter-Driver Communication %s -- "
296 "%04x %04x %04x %04x %04x %04x %04x.\n",
297 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
298 mb[4], mb[5], mb[6]);
299 if ((aen == MBA_IDC_COMPLETE && mb[1] >> 15)) {
300 vha->hw->flags.idc_compl_status = 1;
301 if (vha->hw->notify_dcbx_comp)
302 complete(&vha->hw->dcbx_comp);
303 }
304
305 /* Acknowledgement needed? [Notify && non-zero timeout]. */
306 timeout = (descr >> 8) & 0xf;
307 if (aen != MBA_IDC_NOTIFY || !timeout)
308 return;
309
310 ql_dbg(ql_dbg_async, vha, 0x5022,
311 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
312 vha->host_no, event[aen & 0xff], timeout);
313
314 rval = qla2x00_post_idc_ack_work(vha, mb);
315 if (rval != QLA_SUCCESS)
316 ql_log(ql_log_warn, vha, 0x5023,
317 "IDC failed to post ACK.\n");
318 }
319
320 #define LS_UNKNOWN 2
321 const char *
322 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
323 {
324 static const char * const link_speeds[] = {
325 "1", "2", "?", "4", "8", "16", "10"
326 };
327
328 if (IS_QLA2100(ha) || IS_QLA2200(ha))
329 return link_speeds[0];
330 else if (speed == 0x13)
331 return link_speeds[6];
332 else if (speed < 6)
333 return link_speeds[speed];
334 else
335 return link_speeds[LS_UNKNOWN];
336 }
337
338 static void
339 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
340 {
341 struct qla_hw_data *ha = vha->hw;
342
343 /*
344 * 8200 AEN Interpretation:
345 * mb[0] = AEN code
346 * mb[1] = AEN Reason code
347 * mb[2] = LSW of Peg-Halt Status-1 Register
348 * mb[6] = MSW of Peg-Halt Status-1 Register
349 * mb[3] = LSW of Peg-Halt Status-2 register
350 * mb[7] = MSW of Peg-Halt Status-2 register
351 * mb[4] = IDC Device-State Register value
352 * mb[5] = IDC Driver-Presence Register value
353 */
354 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
355 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
356 mb[0], mb[1], mb[2], mb[6]);
357 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
358 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
359 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
360
361 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
362 IDC_HEARTBEAT_FAILURE)) {
363 ha->flags.nic_core_hung = 1;
364 ql_log(ql_log_warn, vha, 0x5060,
365 "83XX: F/W Error Reported: Check if reset required.\n");
366
367 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
368 uint32_t protocol_engine_id, fw_err_code, err_level;
369
370 /*
371 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
372 * - PEG-Halt Status-1 Register:
373 * (LSW = mb[2], MSW = mb[6])
374 * Bits 0-7 = protocol-engine ID
375 * Bits 8-28 = f/w error code
376 * Bits 29-31 = Error-level
377 * Error-level 0x1 = Non-Fatal error
378 * Error-level 0x2 = Recoverable Fatal error
379 * Error-level 0x4 = UnRecoverable Fatal error
380 * - PEG-Halt Status-2 Register:
381 * (LSW = mb[3], MSW = mb[7])
382 */
383 protocol_engine_id = (mb[2] & 0xff);
384 fw_err_code = (((mb[2] & 0xff00) >> 8) |
385 ((mb[6] & 0x1fff) << 8));
386 err_level = ((mb[6] & 0xe000) >> 13);
387 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
388 "Register: protocol_engine_id=0x%x "
389 "fw_err_code=0x%x err_level=0x%x.\n",
390 protocol_engine_id, fw_err_code, err_level);
391 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
392 "Register: 0x%x%x.\n", mb[7], mb[3]);
393 if (err_level == ERR_LEVEL_NON_FATAL) {
394 ql_log(ql_log_warn, vha, 0x5063,
395 "Not a fatal error, f/w has recovered "
396 "iteself.\n");
397 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
398 ql_log(ql_log_fatal, vha, 0x5064,
399 "Recoverable Fatal error: Chip reset "
400 "required.\n");
401 qla83xx_schedule_work(vha,
402 QLA83XX_NIC_CORE_RESET);
403 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
404 ql_log(ql_log_fatal, vha, 0x5065,
405 "Unrecoverable Fatal error: Set FAILED "
406 "state, reboot required.\n");
407 qla83xx_schedule_work(vha,
408 QLA83XX_NIC_CORE_UNRECOVERABLE);
409 }
410 }
411
412 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
413 uint16_t peg_fw_state, nw_interface_link_up;
414 uint16_t nw_interface_signal_detect, sfp_status;
415 uint16_t htbt_counter, htbt_monitor_enable;
416 uint16_t sfp_additonal_info, sfp_multirate;
417 uint16_t sfp_tx_fault, link_speed, dcbx_status;
418
419 /*
420 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
421 * - PEG-to-FC Status Register:
422 * (LSW = mb[2], MSW = mb[6])
423 * Bits 0-7 = Peg-Firmware state
424 * Bit 8 = N/W Interface Link-up
425 * Bit 9 = N/W Interface signal detected
426 * Bits 10-11 = SFP Status
427 * SFP Status 0x0 = SFP+ transceiver not expected
428 * SFP Status 0x1 = SFP+ transceiver not present
429 * SFP Status 0x2 = SFP+ transceiver invalid
430 * SFP Status 0x3 = SFP+ transceiver present and
431 * valid
432 * Bits 12-14 = Heartbeat Counter
433 * Bit 15 = Heartbeat Monitor Enable
434 * Bits 16-17 = SFP Additional Info
435 * SFP info 0x0 = Unregocnized transceiver for
436 * Ethernet
437 * SFP info 0x1 = SFP+ brand validation failed
438 * SFP info 0x2 = SFP+ speed validation failed
439 * SFP info 0x3 = SFP+ access error
440 * Bit 18 = SFP Multirate
441 * Bit 19 = SFP Tx Fault
442 * Bits 20-22 = Link Speed
443 * Bits 23-27 = Reserved
444 * Bits 28-30 = DCBX Status
445 * DCBX Status 0x0 = DCBX Disabled
446 * DCBX Status 0x1 = DCBX Enabled
447 * DCBX Status 0x2 = DCBX Exchange error
448 * Bit 31 = Reserved
449 */
450 peg_fw_state = (mb[2] & 0x00ff);
451 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
452 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
453 sfp_status = ((mb[2] & 0x0c00) >> 10);
454 htbt_counter = ((mb[2] & 0x7000) >> 12);
455 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
456 sfp_additonal_info = (mb[6] & 0x0003);
457 sfp_multirate = ((mb[6] & 0x0004) >> 2);
458 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
459 link_speed = ((mb[6] & 0x0070) >> 4);
460 dcbx_status = ((mb[6] & 0x7000) >> 12);
461
462 ql_log(ql_log_warn, vha, 0x5066,
463 "Peg-to-Fc Status Register:\n"
464 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
465 "nw_interface_signal_detect=0x%x"
466 "\nsfp_statis=0x%x.\n ", peg_fw_state,
467 nw_interface_link_up, nw_interface_signal_detect,
468 sfp_status);
469 ql_log(ql_log_warn, vha, 0x5067,
470 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
471 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
472 htbt_counter, htbt_monitor_enable,
473 sfp_additonal_info, sfp_multirate);
474 ql_log(ql_log_warn, vha, 0x5068,
475 "sfp_tx_fault=0x%x, link_state=0x%x, "
476 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
477 dcbx_status);
478
479 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
480 }
481
482 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
483 ql_log(ql_log_warn, vha, 0x5069,
484 "Heartbeat Failure encountered, chip reset "
485 "required.\n");
486
487 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
488 }
489 }
490
491 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
492 ql_log(ql_log_info, vha, 0x506a,
493 "IDC Device-State changed = 0x%x.\n", mb[4]);
494 qla83xx_schedule_work(vha, MBA_IDC_AEN);
495 }
496 }
497
498 /**
499 * qla2x00_async_event() - Process aynchronous events.
500 * @ha: SCSI driver HA context
501 * @mb: Mailbox registers (0 - 3)
502 */
503 void
504 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
505 {
506 uint16_t handle_cnt;
507 uint16_t cnt, mbx;
508 uint32_t handles[5];
509 struct qla_hw_data *ha = vha->hw;
510 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
511 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
512 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
513 uint32_t rscn_entry, host_pid;
514 unsigned long flags;
515
516 /* Setup to process RIO completion. */
517 handle_cnt = 0;
518 if (IS_CNA_CAPABLE(ha))
519 goto skip_rio;
520 switch (mb[0]) {
521 case MBA_SCSI_COMPLETION:
522 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
523 handle_cnt = 1;
524 break;
525 case MBA_CMPLT_1_16BIT:
526 handles[0] = mb[1];
527 handle_cnt = 1;
528 mb[0] = MBA_SCSI_COMPLETION;
529 break;
530 case MBA_CMPLT_2_16BIT:
531 handles[0] = mb[1];
532 handles[1] = mb[2];
533 handle_cnt = 2;
534 mb[0] = MBA_SCSI_COMPLETION;
535 break;
536 case MBA_CMPLT_3_16BIT:
537 handles[0] = mb[1];
538 handles[1] = mb[2];
539 handles[2] = mb[3];
540 handle_cnt = 3;
541 mb[0] = MBA_SCSI_COMPLETION;
542 break;
543 case MBA_CMPLT_4_16BIT:
544 handles[0] = mb[1];
545 handles[1] = mb[2];
546 handles[2] = mb[3];
547 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
548 handle_cnt = 4;
549 mb[0] = MBA_SCSI_COMPLETION;
550 break;
551 case MBA_CMPLT_5_16BIT:
552 handles[0] = mb[1];
553 handles[1] = mb[2];
554 handles[2] = mb[3];
555 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
556 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
557 handle_cnt = 5;
558 mb[0] = MBA_SCSI_COMPLETION;
559 break;
560 case MBA_CMPLT_2_32BIT:
561 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
562 handles[1] = le32_to_cpu(
563 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
564 RD_MAILBOX_REG(ha, reg, 6));
565 handle_cnt = 2;
566 mb[0] = MBA_SCSI_COMPLETION;
567 break;
568 default:
569 break;
570 }
571 skip_rio:
572 switch (mb[0]) {
573 case MBA_SCSI_COMPLETION: /* Fast Post */
574 if (!vha->flags.online)
575 break;
576
577 for (cnt = 0; cnt < handle_cnt; cnt++)
578 qla2x00_process_completed_request(vha, rsp->req,
579 handles[cnt]);
580 break;
581
582 case MBA_RESET: /* Reset */
583 ql_dbg(ql_dbg_async, vha, 0x5002,
584 "Asynchronous RESET.\n");
585
586 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
587 break;
588
589 case MBA_SYSTEM_ERR: /* System Error */
590 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha)) ?
591 RD_REG_WORD(&reg24->mailbox7) : 0;
592 ql_log(ql_log_warn, vha, 0x5003,
593 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
594 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
595
596 ha->isp_ops->fw_dump(vha, 1);
597
598 if (IS_FWI2_CAPABLE(ha)) {
599 if (mb[1] == 0 && mb[2] == 0) {
600 ql_log(ql_log_fatal, vha, 0x5004,
601 "Unrecoverable Hardware Error: adapter "
602 "marked OFFLINE!\n");
603 vha->flags.online = 0;
604 vha->device_flags |= DFLG_DEV_FAILED;
605 } else {
606 /* Check to see if MPI timeout occurred */
607 if ((mbx & MBX_3) && (ha->flags.port0))
608 set_bit(MPI_RESET_NEEDED,
609 &vha->dpc_flags);
610
611 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
612 }
613 } else if (mb[1] == 0) {
614 ql_log(ql_log_fatal, vha, 0x5005,
615 "Unrecoverable Hardware Error: adapter marked "
616 "OFFLINE!\n");
617 vha->flags.online = 0;
618 vha->device_flags |= DFLG_DEV_FAILED;
619 } else
620 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
621 break;
622
623 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
624 ql_log(ql_log_warn, vha, 0x5006,
625 "ISP Request Transfer Error (%x).\n", mb[1]);
626
627 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
628 break;
629
630 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
631 ql_log(ql_log_warn, vha, 0x5007,
632 "ISP Response Transfer Error.\n");
633
634 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
635 break;
636
637 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
638 ql_dbg(ql_dbg_async, vha, 0x5008,
639 "Asynchronous WAKEUP_THRES.\n");
640
641 break;
642 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
643 ql_dbg(ql_dbg_async, vha, 0x5009,
644 "LIP occurred (%x).\n", mb[1]);
645
646 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
647 atomic_set(&vha->loop_state, LOOP_DOWN);
648 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
649 qla2x00_mark_all_devices_lost(vha, 1);
650 }
651
652 if (vha->vp_idx) {
653 atomic_set(&vha->vp_state, VP_FAILED);
654 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
655 }
656
657 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
658 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
659
660 vha->flags.management_server_logged_in = 0;
661 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
662 break;
663
664 case MBA_LOOP_UP: /* Loop Up Event */
665 if (IS_QLA2100(ha) || IS_QLA2200(ha))
666 ha->link_data_rate = PORT_SPEED_1GB;
667 else
668 ha->link_data_rate = mb[1];
669
670 ql_dbg(ql_dbg_async, vha, 0x500a,
671 "LOOP UP detected (%s Gbps).\n",
672 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
673
674 vha->flags.management_server_logged_in = 0;
675 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
676 break;
677
678 case MBA_LOOP_DOWN: /* Loop Down Event */
679 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
680 ? RD_REG_WORD(&reg24->mailbox4) : 0;
681 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
682 ql_dbg(ql_dbg_async, vha, 0x500b,
683 "LOOP DOWN detected (%x %x %x %x).\n",
684 mb[1], mb[2], mb[3], mbx);
685
686 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
687 atomic_set(&vha->loop_state, LOOP_DOWN);
688 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
689 vha->device_flags |= DFLG_NO_CABLE;
690 qla2x00_mark_all_devices_lost(vha, 1);
691 }
692
693 if (vha->vp_idx) {
694 atomic_set(&vha->vp_state, VP_FAILED);
695 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
696 }
697
698 vha->flags.management_server_logged_in = 0;
699 ha->link_data_rate = PORT_SPEED_UNKNOWN;
700 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
701 break;
702
703 case MBA_LIP_RESET: /* LIP reset occurred */
704 ql_dbg(ql_dbg_async, vha, 0x500c,
705 "LIP reset occurred (%x).\n", mb[1]);
706
707 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
708 atomic_set(&vha->loop_state, LOOP_DOWN);
709 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
710 qla2x00_mark_all_devices_lost(vha, 1);
711 }
712
713 if (vha->vp_idx) {
714 atomic_set(&vha->vp_state, VP_FAILED);
715 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
716 }
717
718 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
719
720 ha->operating_mode = LOOP;
721 vha->flags.management_server_logged_in = 0;
722 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
723 break;
724
725 /* case MBA_DCBX_COMPLETE: */
726 case MBA_POINT_TO_POINT: /* Point-to-Point */
727 if (IS_QLA2100(ha))
728 break;
729
730 if (IS_QLA81XX(ha) || IS_QLA82XX(ha) || IS_QLA8031(ha)) {
731 ql_dbg(ql_dbg_async, vha, 0x500d,
732 "DCBX Completed -- %04x %04x %04x.\n",
733 mb[1], mb[2], mb[3]);
734 if (ha->notify_dcbx_comp)
735 complete(&ha->dcbx_comp);
736
737 } else
738 ql_dbg(ql_dbg_async, vha, 0x500e,
739 "Asynchronous P2P MODE received.\n");
740
741 /*
742 * Until there's a transition from loop down to loop up, treat
743 * this as loop down only.
744 */
745 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
746 atomic_set(&vha->loop_state, LOOP_DOWN);
747 if (!atomic_read(&vha->loop_down_timer))
748 atomic_set(&vha->loop_down_timer,
749 LOOP_DOWN_TIME);
750 qla2x00_mark_all_devices_lost(vha, 1);
751 }
752
753 if (vha->vp_idx) {
754 atomic_set(&vha->vp_state, VP_FAILED);
755 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
756 }
757
758 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
759 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
760
761 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
762 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
763
764 ha->flags.gpsc_supported = 1;
765 vha->flags.management_server_logged_in = 0;
766 break;
767
768 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
769 if (IS_QLA2100(ha))
770 break;
771
772 ql_dbg(ql_dbg_async, vha, 0x500f,
773 "Configuration change detected: value=%x.\n", mb[1]);
774
775 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
776 atomic_set(&vha->loop_state, LOOP_DOWN);
777 if (!atomic_read(&vha->loop_down_timer))
778 atomic_set(&vha->loop_down_timer,
779 LOOP_DOWN_TIME);
780 qla2x00_mark_all_devices_lost(vha, 1);
781 }
782
783 if (vha->vp_idx) {
784 atomic_set(&vha->vp_state, VP_FAILED);
785 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
786 }
787
788 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
789 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
790 break;
791
792 case MBA_PORT_UPDATE: /* Port database update */
793 /*
794 * Handle only global and vn-port update events
795 *
796 * Relevant inputs:
797 * mb[1] = N_Port handle of changed port
798 * OR 0xffff for global event
799 * mb[2] = New login state
800 * 7 = Port logged out
801 * mb[3] = LSB is vp_idx, 0xff = all vps
802 *
803 * Skip processing if:
804 * Event is global, vp_idx is NOT all vps,
805 * vp_idx does not match
806 * Event is not global, vp_idx does not match
807 */
808 if (IS_QLA2XXX_MIDTYPE(ha) &&
809 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
810 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
811 break;
812
813 /* Global event -- port logout or port unavailable. */
814 if (mb[1] == 0xffff && mb[2] == 0x7) {
815 ql_dbg(ql_dbg_async, vha, 0x5010,
816 "Port unavailable %04x %04x %04x.\n",
817 mb[1], mb[2], mb[3]);
818 ql_log(ql_log_warn, vha, 0x505e,
819 "Link is offline.\n");
820
821 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
822 atomic_set(&vha->loop_state, LOOP_DOWN);
823 atomic_set(&vha->loop_down_timer,
824 LOOP_DOWN_TIME);
825 vha->device_flags |= DFLG_NO_CABLE;
826 qla2x00_mark_all_devices_lost(vha, 1);
827 }
828
829 if (vha->vp_idx) {
830 atomic_set(&vha->vp_state, VP_FAILED);
831 fc_vport_set_state(vha->fc_vport,
832 FC_VPORT_FAILED);
833 qla2x00_mark_all_devices_lost(vha, 1);
834 }
835
836 vha->flags.management_server_logged_in = 0;
837 ha->link_data_rate = PORT_SPEED_UNKNOWN;
838 break;
839 }
840
841 /*
842 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
843 * event etc. earlier indicating loop is down) then process
844 * it. Otherwise ignore it and Wait for RSCN to come in.
845 */
846 atomic_set(&vha->loop_down_timer, 0);
847 if (mb[1] != 0xffff || (mb[2] != 0x6 && mb[2] != 0x4)) {
848 ql_dbg(ql_dbg_async, vha, 0x5011,
849 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
850 mb[1], mb[2], mb[3]);
851
852 qlt_async_event(mb[0], vha, mb);
853 break;
854 }
855
856 ql_dbg(ql_dbg_async, vha, 0x5012,
857 "Port database changed %04x %04x %04x.\n",
858 mb[1], mb[2], mb[3]);
859 ql_log(ql_log_warn, vha, 0x505f,
860 "Link is operational (%s Gbps).\n",
861 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
862
863 /*
864 * Mark all devices as missing so we will login again.
865 */
866 atomic_set(&vha->loop_state, LOOP_UP);
867
868 qla2x00_mark_all_devices_lost(vha, 1);
869
870 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
871 set_bit(SCR_PENDING, &vha->dpc_flags);
872
873 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
874 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
875
876 qlt_async_event(mb[0], vha, mb);
877 break;
878
879 case MBA_RSCN_UPDATE: /* State Change Registration */
880 /* Check if the Vport has issued a SCR */
881 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
882 break;
883 /* Only handle SCNs for our Vport index. */
884 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
885 break;
886
887 ql_dbg(ql_dbg_async, vha, 0x5013,
888 "RSCN database changed -- %04x %04x %04x.\n",
889 mb[1], mb[2], mb[3]);
890
891 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
892 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
893 | vha->d_id.b.al_pa;
894 if (rscn_entry == host_pid) {
895 ql_dbg(ql_dbg_async, vha, 0x5014,
896 "Ignoring RSCN update to local host "
897 "port ID (%06x).\n", host_pid);
898 break;
899 }
900
901 /* Ignore reserved bits from RSCN-payload. */
902 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
903
904 atomic_set(&vha->loop_down_timer, 0);
905 vha->flags.management_server_logged_in = 0;
906
907 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
908 set_bit(RSCN_UPDATE, &vha->dpc_flags);
909 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
910 break;
911
912 /* case MBA_RIO_RESPONSE: */
913 case MBA_ZIO_RESPONSE:
914 ql_dbg(ql_dbg_async, vha, 0x5015,
915 "[R|Z]IO update completion.\n");
916
917 if (IS_FWI2_CAPABLE(ha))
918 qla24xx_process_response_queue(vha, rsp);
919 else
920 qla2x00_process_response_queue(rsp);
921 break;
922
923 case MBA_DISCARD_RND_FRAME:
924 ql_dbg(ql_dbg_async, vha, 0x5016,
925 "Discard RND Frame -- %04x %04x %04x.\n",
926 mb[1], mb[2], mb[3]);
927 break;
928
929 case MBA_TRACE_NOTIFICATION:
930 ql_dbg(ql_dbg_async, vha, 0x5017,
931 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
932 break;
933
934 case MBA_ISP84XX_ALERT:
935 ql_dbg(ql_dbg_async, vha, 0x5018,
936 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
937 mb[1], mb[2], mb[3]);
938
939 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
940 switch (mb[1]) {
941 case A84_PANIC_RECOVERY:
942 ql_log(ql_log_info, vha, 0x5019,
943 "Alert 84XX: panic recovery %04x %04x.\n",
944 mb[2], mb[3]);
945 break;
946 case A84_OP_LOGIN_COMPLETE:
947 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
948 ql_log(ql_log_info, vha, 0x501a,
949 "Alert 84XX: firmware version %x.\n",
950 ha->cs84xx->op_fw_version);
951 break;
952 case A84_DIAG_LOGIN_COMPLETE:
953 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
954 ql_log(ql_log_info, vha, 0x501b,
955 "Alert 84XX: diagnostic firmware version %x.\n",
956 ha->cs84xx->diag_fw_version);
957 break;
958 case A84_GOLD_LOGIN_COMPLETE:
959 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
960 ha->cs84xx->fw_update = 1;
961 ql_log(ql_log_info, vha, 0x501c,
962 "Alert 84XX: gold firmware version %x.\n",
963 ha->cs84xx->gold_fw_version);
964 break;
965 default:
966 ql_log(ql_log_warn, vha, 0x501d,
967 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
968 mb[1], mb[2], mb[3]);
969 }
970 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
971 break;
972 case MBA_DCBX_START:
973 ql_dbg(ql_dbg_async, vha, 0x501e,
974 "DCBX Started -- %04x %04x %04x.\n",
975 mb[1], mb[2], mb[3]);
976 break;
977 case MBA_DCBX_PARAM_UPDATE:
978 ql_dbg(ql_dbg_async, vha, 0x501f,
979 "DCBX Parameters Updated -- %04x %04x %04x.\n",
980 mb[1], mb[2], mb[3]);
981 break;
982 case MBA_FCF_CONF_ERR:
983 ql_dbg(ql_dbg_async, vha, 0x5020,
984 "FCF Configuration Error -- %04x %04x %04x.\n",
985 mb[1], mb[2], mb[3]);
986 break;
987 case MBA_IDC_NOTIFY:
988 if (IS_QLA8031(vha->hw)) {
989 mb[4] = RD_REG_WORD(&reg24->mailbox4);
990 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
991 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
992 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
993 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
994 /*
995 * Extend loop down timer since port is active.
996 */
997 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
998 atomic_set(&vha->loop_down_timer,
999 LOOP_DOWN_TIME);
1000 qla2xxx_wake_dpc(vha);
1001 }
1002 }
1003 case MBA_IDC_COMPLETE:
1004 case MBA_IDC_TIME_EXT:
1005 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw))
1006 qla81xx_idc_event(vha, mb[0], mb[1]);
1007 break;
1008
1009 case MBA_IDC_AEN:
1010 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1011 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1012 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1013 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1014 qla83xx_handle_8200_aen(vha, mb);
1015 break;
1016
1017 default:
1018 ql_dbg(ql_dbg_async, vha, 0x5057,
1019 "Unknown AEN:%04x %04x %04x %04x\n",
1020 mb[0], mb[1], mb[2], mb[3]);
1021 }
1022
1023 qlt_async_event(mb[0], vha, mb);
1024
1025 if (!vha->vp_idx && ha->num_vhosts)
1026 qla2x00_alert_all_vps(rsp, mb);
1027 }
1028
1029 /**
1030 * qla2x00_process_completed_request() - Process a Fast Post response.
1031 * @ha: SCSI driver HA context
1032 * @index: SRB index
1033 */
1034 static void
1035 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1036 struct req_que *req, uint32_t index)
1037 {
1038 srb_t *sp;
1039 struct qla_hw_data *ha = vha->hw;
1040
1041 /* Validate handle. */
1042 if (index >= req->num_outstanding_cmds) {
1043 ql_log(ql_log_warn, vha, 0x3014,
1044 "Invalid SCSI command index (%x).\n", index);
1045
1046 if (IS_QLA82XX(ha))
1047 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1048 else
1049 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1050 return;
1051 }
1052
1053 sp = req->outstanding_cmds[index];
1054 if (sp) {
1055 /* Free outstanding command slot. */
1056 req->outstanding_cmds[index] = NULL;
1057
1058 /* Save ISP completion status */
1059 sp->done(ha, sp, DID_OK << 16);
1060 } else {
1061 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1062
1063 if (IS_QLA82XX(ha))
1064 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1065 else
1066 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1067 }
1068 }
1069
1070 static srb_t *
1071 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1072 struct req_que *req, void *iocb)
1073 {
1074 struct qla_hw_data *ha = vha->hw;
1075 sts_entry_t *pkt = iocb;
1076 srb_t *sp = NULL;
1077 uint16_t index;
1078
1079 index = LSW(pkt->handle);
1080 if (index >= req->num_outstanding_cmds) {
1081 ql_log(ql_log_warn, vha, 0x5031,
1082 "Invalid command index (%x).\n", index);
1083 if (IS_QLA82XX(ha))
1084 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1085 else
1086 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1087 goto done;
1088 }
1089 sp = req->outstanding_cmds[index];
1090 if (!sp) {
1091 ql_log(ql_log_warn, vha, 0x5032,
1092 "Invalid completion handle (%x) -- timed-out.\n", index);
1093 return sp;
1094 }
1095 if (sp->handle != index) {
1096 ql_log(ql_log_warn, vha, 0x5033,
1097 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1098 return NULL;
1099 }
1100
1101 req->outstanding_cmds[index] = NULL;
1102
1103 done:
1104 return sp;
1105 }
1106
1107 static void
1108 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1109 struct mbx_entry *mbx)
1110 {
1111 const char func[] = "MBX-IOCB";
1112 const char *type;
1113 fc_port_t *fcport;
1114 srb_t *sp;
1115 struct srb_iocb *lio;
1116 uint16_t *data;
1117 uint16_t status;
1118
1119 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1120 if (!sp)
1121 return;
1122
1123 lio = &sp->u.iocb_cmd;
1124 type = sp->name;
1125 fcport = sp->fcport;
1126 data = lio->u.logio.data;
1127
1128 data[0] = MBS_COMMAND_ERROR;
1129 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1130 QLA_LOGIO_LOGIN_RETRIED : 0;
1131 if (mbx->entry_status) {
1132 ql_dbg(ql_dbg_async, vha, 0x5043,
1133 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1134 "entry-status=%x status=%x state-flag=%x "
1135 "status-flags=%x.\n", type, sp->handle,
1136 fcport->d_id.b.domain, fcport->d_id.b.area,
1137 fcport->d_id.b.al_pa, mbx->entry_status,
1138 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1139 le16_to_cpu(mbx->status_flags));
1140
1141 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1142 (uint8_t *)mbx, sizeof(*mbx));
1143
1144 goto logio_done;
1145 }
1146
1147 status = le16_to_cpu(mbx->status);
1148 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1149 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1150 status = 0;
1151 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1152 ql_dbg(ql_dbg_async, vha, 0x5045,
1153 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1154 type, sp->handle, fcport->d_id.b.domain,
1155 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1156 le16_to_cpu(mbx->mb1));
1157
1158 data[0] = MBS_COMMAND_COMPLETE;
1159 if (sp->type == SRB_LOGIN_CMD) {
1160 fcport->port_type = FCT_TARGET;
1161 if (le16_to_cpu(mbx->mb1) & BIT_0)
1162 fcport->port_type = FCT_INITIATOR;
1163 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1164 fcport->flags |= FCF_FCP2_DEVICE;
1165 }
1166 goto logio_done;
1167 }
1168
1169 data[0] = le16_to_cpu(mbx->mb0);
1170 switch (data[0]) {
1171 case MBS_PORT_ID_USED:
1172 data[1] = le16_to_cpu(mbx->mb1);
1173 break;
1174 case MBS_LOOP_ID_USED:
1175 break;
1176 default:
1177 data[0] = MBS_COMMAND_ERROR;
1178 break;
1179 }
1180
1181 ql_log(ql_log_warn, vha, 0x5046,
1182 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1183 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1184 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1185 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1186 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1187 le16_to_cpu(mbx->mb7));
1188
1189 logio_done:
1190 sp->done(vha, sp, 0);
1191 }
1192
1193 static void
1194 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1195 sts_entry_t *pkt, int iocb_type)
1196 {
1197 const char func[] = "CT_IOCB";
1198 const char *type;
1199 srb_t *sp;
1200 struct fc_bsg_job *bsg_job;
1201 uint16_t comp_status;
1202 int res;
1203
1204 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1205 if (!sp)
1206 return;
1207
1208 bsg_job = sp->u.bsg_job;
1209
1210 type = "ct pass-through";
1211
1212 comp_status = le16_to_cpu(pkt->comp_status);
1213
1214 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1215 * fc payload to the caller
1216 */
1217 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1218 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1219
1220 if (comp_status != CS_COMPLETE) {
1221 if (comp_status == CS_DATA_UNDERRUN) {
1222 res = DID_OK << 16;
1223 bsg_job->reply->reply_payload_rcv_len =
1224 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1225
1226 ql_log(ql_log_warn, vha, 0x5048,
1227 "CT pass-through-%s error "
1228 "comp_status-status=0x%x total_byte = 0x%x.\n",
1229 type, comp_status,
1230 bsg_job->reply->reply_payload_rcv_len);
1231 } else {
1232 ql_log(ql_log_warn, vha, 0x5049,
1233 "CT pass-through-%s error "
1234 "comp_status-status=0x%x.\n", type, comp_status);
1235 res = DID_ERROR << 16;
1236 bsg_job->reply->reply_payload_rcv_len = 0;
1237 }
1238 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1239 (uint8_t *)pkt, sizeof(*pkt));
1240 } else {
1241 res = DID_OK << 16;
1242 bsg_job->reply->reply_payload_rcv_len =
1243 bsg_job->reply_payload.payload_len;
1244 bsg_job->reply_len = 0;
1245 }
1246
1247 sp->done(vha, sp, res);
1248 }
1249
1250 static void
1251 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1252 struct sts_entry_24xx *pkt, int iocb_type)
1253 {
1254 const char func[] = "ELS_CT_IOCB";
1255 const char *type;
1256 srb_t *sp;
1257 struct fc_bsg_job *bsg_job;
1258 uint16_t comp_status;
1259 uint32_t fw_status[3];
1260 uint8_t* fw_sts_ptr;
1261 int res;
1262
1263 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1264 if (!sp)
1265 return;
1266 bsg_job = sp->u.bsg_job;
1267
1268 type = NULL;
1269 switch (sp->type) {
1270 case SRB_ELS_CMD_RPT:
1271 case SRB_ELS_CMD_HST:
1272 type = "els";
1273 break;
1274 case SRB_CT_CMD:
1275 type = "ct pass-through";
1276 break;
1277 default:
1278 ql_dbg(ql_dbg_user, vha, 0x503e,
1279 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1280 return;
1281 }
1282
1283 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1284 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1285 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1286
1287 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1288 * fc payload to the caller
1289 */
1290 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1291 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1292
1293 if (comp_status != CS_COMPLETE) {
1294 if (comp_status == CS_DATA_UNDERRUN) {
1295 res = DID_OK << 16;
1296 bsg_job->reply->reply_payload_rcv_len =
1297 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1298
1299 ql_dbg(ql_dbg_user, vha, 0x503f,
1300 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1301 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1302 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1303 le16_to_cpu(((struct els_sts_entry_24xx *)
1304 pkt)->total_byte_count));
1305 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1306 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1307 }
1308 else {
1309 ql_dbg(ql_dbg_user, vha, 0x5040,
1310 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1311 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1312 type, sp->handle, comp_status,
1313 le16_to_cpu(((struct els_sts_entry_24xx *)
1314 pkt)->error_subcode_1),
1315 le16_to_cpu(((struct els_sts_entry_24xx *)
1316 pkt)->error_subcode_2));
1317 res = DID_ERROR << 16;
1318 bsg_job->reply->reply_payload_rcv_len = 0;
1319 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1320 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1321 }
1322 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1323 (uint8_t *)pkt, sizeof(*pkt));
1324 }
1325 else {
1326 res = DID_OK << 16;
1327 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1328 bsg_job->reply_len = 0;
1329 }
1330
1331 sp->done(vha, sp, res);
1332 }
1333
1334 static void
1335 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1336 struct logio_entry_24xx *logio)
1337 {
1338 const char func[] = "LOGIO-IOCB";
1339 const char *type;
1340 fc_port_t *fcport;
1341 srb_t *sp;
1342 struct srb_iocb *lio;
1343 uint16_t *data;
1344 uint32_t iop[2];
1345
1346 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1347 if (!sp)
1348 return;
1349
1350 lio = &sp->u.iocb_cmd;
1351 type = sp->name;
1352 fcport = sp->fcport;
1353 data = lio->u.logio.data;
1354
1355 data[0] = MBS_COMMAND_ERROR;
1356 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1357 QLA_LOGIO_LOGIN_RETRIED : 0;
1358 if (logio->entry_status) {
1359 ql_log(ql_log_warn, fcport->vha, 0x5034,
1360 "Async-%s error entry - hdl=%x"
1361 "portid=%02x%02x%02x entry-status=%x.\n",
1362 type, sp->handle, fcport->d_id.b.domain,
1363 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1364 logio->entry_status);
1365 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1366 (uint8_t *)logio, sizeof(*logio));
1367
1368 goto logio_done;
1369 }
1370
1371 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1372 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1373 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1374 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1375 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1376 le32_to_cpu(logio->io_parameter[0]));
1377
1378 data[0] = MBS_COMMAND_COMPLETE;
1379 if (sp->type != SRB_LOGIN_CMD)
1380 goto logio_done;
1381
1382 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1383 if (iop[0] & BIT_4) {
1384 fcport->port_type = FCT_TARGET;
1385 if (iop[0] & BIT_8)
1386 fcport->flags |= FCF_FCP2_DEVICE;
1387 } else if (iop[0] & BIT_5)
1388 fcport->port_type = FCT_INITIATOR;
1389
1390 if (iop[0] & BIT_7)
1391 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1392
1393 if (logio->io_parameter[7] || logio->io_parameter[8])
1394 fcport->supported_classes |= FC_COS_CLASS2;
1395 if (logio->io_parameter[9] || logio->io_parameter[10])
1396 fcport->supported_classes |= FC_COS_CLASS3;
1397
1398 goto logio_done;
1399 }
1400
1401 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1402 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1403 switch (iop[0]) {
1404 case LSC_SCODE_PORTID_USED:
1405 data[0] = MBS_PORT_ID_USED;
1406 data[1] = LSW(iop[1]);
1407 break;
1408 case LSC_SCODE_NPORT_USED:
1409 data[0] = MBS_LOOP_ID_USED;
1410 break;
1411 default:
1412 data[0] = MBS_COMMAND_ERROR;
1413 break;
1414 }
1415
1416 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1417 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1418 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1419 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1420 le16_to_cpu(logio->comp_status),
1421 le32_to_cpu(logio->io_parameter[0]),
1422 le32_to_cpu(logio->io_parameter[1]));
1423
1424 logio_done:
1425 sp->done(vha, sp, 0);
1426 }
1427
1428 static void
1429 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1430 struct tsk_mgmt_entry *tsk)
1431 {
1432 const char func[] = "TMF-IOCB";
1433 const char *type;
1434 fc_port_t *fcport;
1435 srb_t *sp;
1436 struct srb_iocb *iocb;
1437 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1438 int error = 1;
1439
1440 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1441 if (!sp)
1442 return;
1443
1444 iocb = &sp->u.iocb_cmd;
1445 type = sp->name;
1446 fcport = sp->fcport;
1447
1448 if (sts->entry_status) {
1449 ql_log(ql_log_warn, fcport->vha, 0x5038,
1450 "Async-%s error - hdl=%x entry-status(%x).\n",
1451 type, sp->handle, sts->entry_status);
1452 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1453 ql_log(ql_log_warn, fcport->vha, 0x5039,
1454 "Async-%s error - hdl=%x completion status(%x).\n",
1455 type, sp->handle, sts->comp_status);
1456 } else if (!(le16_to_cpu(sts->scsi_status) &
1457 SS_RESPONSE_INFO_LEN_VALID)) {
1458 ql_log(ql_log_warn, fcport->vha, 0x503a,
1459 "Async-%s error - hdl=%x no response info(%x).\n",
1460 type, sp->handle, sts->scsi_status);
1461 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1462 ql_log(ql_log_warn, fcport->vha, 0x503b,
1463 "Async-%s error - hdl=%x not enough response(%d).\n",
1464 type, sp->handle, sts->rsp_data_len);
1465 } else if (sts->data[3]) {
1466 ql_log(ql_log_warn, fcport->vha, 0x503c,
1467 "Async-%s error - hdl=%x response(%x).\n",
1468 type, sp->handle, sts->data[3]);
1469 } else {
1470 error = 0;
1471 }
1472
1473 if (error) {
1474 iocb->u.tmf.data = error;
1475 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1476 (uint8_t *)sts, sizeof(*sts));
1477 }
1478
1479 sp->done(vha, sp, 0);
1480 }
1481
1482 /**
1483 * qla2x00_process_response_queue() - Process response queue entries.
1484 * @ha: SCSI driver HA context
1485 */
1486 void
1487 qla2x00_process_response_queue(struct rsp_que *rsp)
1488 {
1489 struct scsi_qla_host *vha;
1490 struct qla_hw_data *ha = rsp->hw;
1491 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1492 sts_entry_t *pkt;
1493 uint16_t handle_cnt;
1494 uint16_t cnt;
1495
1496 vha = pci_get_drvdata(ha->pdev);
1497
1498 if (!vha->flags.online)
1499 return;
1500
1501 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1502 pkt = (sts_entry_t *)rsp->ring_ptr;
1503
1504 rsp->ring_index++;
1505 if (rsp->ring_index == rsp->length) {
1506 rsp->ring_index = 0;
1507 rsp->ring_ptr = rsp->ring;
1508 } else {
1509 rsp->ring_ptr++;
1510 }
1511
1512 if (pkt->entry_status != 0) {
1513 qla2x00_error_entry(vha, rsp, pkt);
1514 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1515 wmb();
1516 continue;
1517 }
1518
1519 switch (pkt->entry_type) {
1520 case STATUS_TYPE:
1521 qla2x00_status_entry(vha, rsp, pkt);
1522 break;
1523 case STATUS_TYPE_21:
1524 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1525 for (cnt = 0; cnt < handle_cnt; cnt++) {
1526 qla2x00_process_completed_request(vha, rsp->req,
1527 ((sts21_entry_t *)pkt)->handle[cnt]);
1528 }
1529 break;
1530 case STATUS_TYPE_22:
1531 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1532 for (cnt = 0; cnt < handle_cnt; cnt++) {
1533 qla2x00_process_completed_request(vha, rsp->req,
1534 ((sts22_entry_t *)pkt)->handle[cnt]);
1535 }
1536 break;
1537 case STATUS_CONT_TYPE:
1538 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1539 break;
1540 case MBX_IOCB_TYPE:
1541 qla2x00_mbx_iocb_entry(vha, rsp->req,
1542 (struct mbx_entry *)pkt);
1543 break;
1544 case CT_IOCB_TYPE:
1545 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1546 break;
1547 default:
1548 /* Type Not Supported. */
1549 ql_log(ql_log_warn, vha, 0x504a,
1550 "Received unknown response pkt type %x "
1551 "entry status=%x.\n",
1552 pkt->entry_type, pkt->entry_status);
1553 break;
1554 }
1555 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1556 wmb();
1557 }
1558
1559 /* Adjust ring index */
1560 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1561 }
1562
1563 static inline void
1564 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1565 uint32_t sense_len, struct rsp_que *rsp, int res)
1566 {
1567 struct scsi_qla_host *vha = sp->fcport->vha;
1568 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1569 uint32_t track_sense_len;
1570
1571 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1572 sense_len = SCSI_SENSE_BUFFERSIZE;
1573
1574 SET_CMD_SENSE_LEN(sp, sense_len);
1575 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1576 track_sense_len = sense_len;
1577
1578 if (sense_len > par_sense_len)
1579 sense_len = par_sense_len;
1580
1581 memcpy(cp->sense_buffer, sense_data, sense_len);
1582
1583 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1584 track_sense_len -= sense_len;
1585 SET_CMD_SENSE_LEN(sp, track_sense_len);
1586
1587 if (track_sense_len != 0) {
1588 rsp->status_srb = sp;
1589 cp->result = res;
1590 }
1591
1592 if (sense_len) {
1593 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1594 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1595 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1596 cp);
1597 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1598 cp->sense_buffer, sense_len);
1599 }
1600 }
1601
1602 struct scsi_dif_tuple {
1603 __be16 guard; /* Checksum */
1604 __be16 app_tag; /* APPL identifier */
1605 __be32 ref_tag; /* Target LBA or indirect LBA */
1606 };
1607
1608 /*
1609 * Checks the guard or meta-data for the type of error
1610 * detected by the HBA. In case of errors, we set the
1611 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1612 * to indicate to the kernel that the HBA detected error.
1613 */
1614 static inline int
1615 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1616 {
1617 struct scsi_qla_host *vha = sp->fcport->vha;
1618 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1619 uint8_t *ap = &sts24->data[12];
1620 uint8_t *ep = &sts24->data[20];
1621 uint32_t e_ref_tag, a_ref_tag;
1622 uint16_t e_app_tag, a_app_tag;
1623 uint16_t e_guard, a_guard;
1624
1625 /*
1626 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1627 * would make guard field appear at offset 2
1628 */
1629 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1630 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1631 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1632 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1633 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1634 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1635
1636 ql_dbg(ql_dbg_io, vha, 0x3023,
1637 "iocb(s) %p Returned STATUS.\n", sts24);
1638
1639 ql_dbg(ql_dbg_io, vha, 0x3024,
1640 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1641 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1642 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1643 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1644 a_app_tag, e_app_tag, a_guard, e_guard);
1645
1646 /*
1647 * Ignore sector if:
1648 * For type 3: ref & app tag is all 'f's
1649 * For type 0,1,2: app tag is all 'f's
1650 */
1651 if ((a_app_tag == 0xffff) &&
1652 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1653 (a_ref_tag == 0xffffffff))) {
1654 uint32_t blocks_done, resid;
1655 sector_t lba_s = scsi_get_lba(cmd);
1656
1657 /* 2TB boundary case covered automatically with this */
1658 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1659
1660 resid = scsi_bufflen(cmd) - (blocks_done *
1661 cmd->device->sector_size);
1662
1663 scsi_set_resid(cmd, resid);
1664 cmd->result = DID_OK << 16;
1665
1666 /* Update protection tag */
1667 if (scsi_prot_sg_count(cmd)) {
1668 uint32_t i, j = 0, k = 0, num_ent;
1669 struct scatterlist *sg;
1670 struct sd_dif_tuple *spt;
1671
1672 /* Patch the corresponding protection tags */
1673 scsi_for_each_prot_sg(cmd, sg,
1674 scsi_prot_sg_count(cmd), i) {
1675 num_ent = sg_dma_len(sg) / 8;
1676 if (k + num_ent < blocks_done) {
1677 k += num_ent;
1678 continue;
1679 }
1680 j = blocks_done - k - 1;
1681 k = blocks_done;
1682 break;
1683 }
1684
1685 if (k != blocks_done) {
1686 ql_log(ql_log_warn, vha, 0x302f,
1687 "unexpected tag values tag:lba=%x:%llx)\n",
1688 e_ref_tag, (unsigned long long)lba_s);
1689 return 1;
1690 }
1691
1692 spt = page_address(sg_page(sg)) + sg->offset;
1693 spt += j;
1694
1695 spt->app_tag = 0xffff;
1696 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1697 spt->ref_tag = 0xffffffff;
1698 }
1699
1700 return 0;
1701 }
1702
1703 /* check guard */
1704 if (e_guard != a_guard) {
1705 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1706 0x10, 0x1);
1707 set_driver_byte(cmd, DRIVER_SENSE);
1708 set_host_byte(cmd, DID_ABORT);
1709 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1710 return 1;
1711 }
1712
1713 /* check ref tag */
1714 if (e_ref_tag != a_ref_tag) {
1715 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1716 0x10, 0x3);
1717 set_driver_byte(cmd, DRIVER_SENSE);
1718 set_host_byte(cmd, DID_ABORT);
1719 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1720 return 1;
1721 }
1722
1723 /* check appl tag */
1724 if (e_app_tag != a_app_tag) {
1725 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1726 0x10, 0x2);
1727 set_driver_byte(cmd, DRIVER_SENSE);
1728 set_host_byte(cmd, DID_ABORT);
1729 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1730 return 1;
1731 }
1732
1733 return 1;
1734 }
1735
1736 static void
1737 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1738 struct req_que *req, uint32_t index)
1739 {
1740 struct qla_hw_data *ha = vha->hw;
1741 srb_t *sp;
1742 uint16_t comp_status;
1743 uint16_t scsi_status;
1744 uint16_t thread_id;
1745 uint32_t rval = EXT_STATUS_OK;
1746 struct fc_bsg_job *bsg_job = NULL;
1747 sts_entry_t *sts;
1748 struct sts_entry_24xx *sts24;
1749 sts = (sts_entry_t *) pkt;
1750 sts24 = (struct sts_entry_24xx *) pkt;
1751
1752 /* Validate handle. */
1753 if (index >= req->num_outstanding_cmds) {
1754 ql_log(ql_log_warn, vha, 0x70af,
1755 "Invalid SCSI completion handle 0x%x.\n", index);
1756 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1757 return;
1758 }
1759
1760 sp = req->outstanding_cmds[index];
1761 if (sp) {
1762 /* Free outstanding command slot. */
1763 req->outstanding_cmds[index] = NULL;
1764 bsg_job = sp->u.bsg_job;
1765 } else {
1766 ql_log(ql_log_warn, vha, 0x70b0,
1767 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1768 req->id, index);
1769
1770 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1771 return;
1772 }
1773
1774 if (IS_FWI2_CAPABLE(ha)) {
1775 comp_status = le16_to_cpu(sts24->comp_status);
1776 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1777 } else {
1778 comp_status = le16_to_cpu(sts->comp_status);
1779 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1780 }
1781
1782 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1783 switch (comp_status) {
1784 case CS_COMPLETE:
1785 if (scsi_status == 0) {
1786 bsg_job->reply->reply_payload_rcv_len =
1787 bsg_job->reply_payload.payload_len;
1788 rval = EXT_STATUS_OK;
1789 }
1790 goto done;
1791
1792 case CS_DATA_OVERRUN:
1793 ql_dbg(ql_dbg_user, vha, 0x70b1,
1794 "Command completed with date overrun thread_id=%d\n",
1795 thread_id);
1796 rval = EXT_STATUS_DATA_OVERRUN;
1797 break;
1798
1799 case CS_DATA_UNDERRUN:
1800 ql_dbg(ql_dbg_user, vha, 0x70b2,
1801 "Command completed with date underrun thread_id=%d\n",
1802 thread_id);
1803 rval = EXT_STATUS_DATA_UNDERRUN;
1804 break;
1805 case CS_BIDIR_RD_OVERRUN:
1806 ql_dbg(ql_dbg_user, vha, 0x70b3,
1807 "Command completed with read data overrun thread_id=%d\n",
1808 thread_id);
1809 rval = EXT_STATUS_DATA_OVERRUN;
1810 break;
1811
1812 case CS_BIDIR_RD_WR_OVERRUN:
1813 ql_dbg(ql_dbg_user, vha, 0x70b4,
1814 "Command completed with read and write data overrun "
1815 "thread_id=%d\n", thread_id);
1816 rval = EXT_STATUS_DATA_OVERRUN;
1817 break;
1818
1819 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1820 ql_dbg(ql_dbg_user, vha, 0x70b5,
1821 "Command completed with read data over and write data "
1822 "underrun thread_id=%d\n", thread_id);
1823 rval = EXT_STATUS_DATA_OVERRUN;
1824 break;
1825
1826 case CS_BIDIR_RD_UNDERRUN:
1827 ql_dbg(ql_dbg_user, vha, 0x70b6,
1828 "Command completed with read data data underrun "
1829 "thread_id=%d\n", thread_id);
1830 rval = EXT_STATUS_DATA_UNDERRUN;
1831 break;
1832
1833 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1834 ql_dbg(ql_dbg_user, vha, 0x70b7,
1835 "Command completed with read data under and write data "
1836 "overrun thread_id=%d\n", thread_id);
1837 rval = EXT_STATUS_DATA_UNDERRUN;
1838 break;
1839
1840 case CS_BIDIR_RD_WR_UNDERRUN:
1841 ql_dbg(ql_dbg_user, vha, 0x70b8,
1842 "Command completed with read and write data underrun "
1843 "thread_id=%d\n", thread_id);
1844 rval = EXT_STATUS_DATA_UNDERRUN;
1845 break;
1846
1847 case CS_BIDIR_DMA:
1848 ql_dbg(ql_dbg_user, vha, 0x70b9,
1849 "Command completed with data DMA error thread_id=%d\n",
1850 thread_id);
1851 rval = EXT_STATUS_DMA_ERR;
1852 break;
1853
1854 case CS_TIMEOUT:
1855 ql_dbg(ql_dbg_user, vha, 0x70ba,
1856 "Command completed with timeout thread_id=%d\n",
1857 thread_id);
1858 rval = EXT_STATUS_TIMEOUT;
1859 break;
1860 default:
1861 ql_dbg(ql_dbg_user, vha, 0x70bb,
1862 "Command completed with completion status=0x%x "
1863 "thread_id=%d\n", comp_status, thread_id);
1864 rval = EXT_STATUS_ERR;
1865 break;
1866 }
1867 bsg_job->reply->reply_payload_rcv_len = 0;
1868
1869 done:
1870 /* Return the vendor specific reply to API */
1871 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1872 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1873 /* Always return DID_OK, bsg will send the vendor specific response
1874 * in this case only */
1875 sp->done(vha, sp, (DID_OK << 6));
1876
1877 }
1878
1879 /**
1880 * qla2x00_status_entry() - Process a Status IOCB entry.
1881 * @ha: SCSI driver HA context
1882 * @pkt: Entry pointer
1883 */
1884 static void
1885 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1886 {
1887 srb_t *sp;
1888 fc_port_t *fcport;
1889 struct scsi_cmnd *cp;
1890 sts_entry_t *sts;
1891 struct sts_entry_24xx *sts24;
1892 uint16_t comp_status;
1893 uint16_t scsi_status;
1894 uint16_t ox_id;
1895 uint8_t lscsi_status;
1896 int32_t resid;
1897 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1898 fw_resid_len;
1899 uint8_t *rsp_info, *sense_data;
1900 struct qla_hw_data *ha = vha->hw;
1901 uint32_t handle;
1902 uint16_t que;
1903 struct req_que *req;
1904 int logit = 1;
1905 int res = 0;
1906 uint16_t state_flags = 0;
1907
1908 sts = (sts_entry_t *) pkt;
1909 sts24 = (struct sts_entry_24xx *) pkt;
1910 if (IS_FWI2_CAPABLE(ha)) {
1911 comp_status = le16_to_cpu(sts24->comp_status);
1912 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1913 state_flags = le16_to_cpu(sts24->state_flags);
1914 } else {
1915 comp_status = le16_to_cpu(sts->comp_status);
1916 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1917 }
1918 handle = (uint32_t) LSW(sts->handle);
1919 que = MSW(sts->handle);
1920 req = ha->req_q_map[que];
1921
1922 /* Validate handle. */
1923 if (handle < req->num_outstanding_cmds)
1924 sp = req->outstanding_cmds[handle];
1925 else
1926 sp = NULL;
1927
1928 if (sp == NULL) {
1929 ql_dbg(ql_dbg_io, vha, 0x3017,
1930 "Invalid status handle (0x%x).\n", sts->handle);
1931
1932 if (IS_QLA82XX(ha))
1933 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1934 else
1935 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1936 qla2xxx_wake_dpc(vha);
1937 return;
1938 }
1939
1940 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
1941 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
1942 return;
1943 }
1944
1945 /* Fast path completion. */
1946 if (comp_status == CS_COMPLETE && scsi_status == 0) {
1947 qla2x00_do_host_ramp_up(vha);
1948 qla2x00_process_completed_request(vha, req, handle);
1949
1950 return;
1951 }
1952
1953 req->outstanding_cmds[handle] = NULL;
1954 cp = GET_CMD_SP(sp);
1955 if (cp == NULL) {
1956 ql_dbg(ql_dbg_io, vha, 0x3018,
1957 "Command already returned (0x%x/%p).\n",
1958 sts->handle, sp);
1959
1960 return;
1961 }
1962
1963 lscsi_status = scsi_status & STATUS_MASK;
1964
1965 fcport = sp->fcport;
1966
1967 ox_id = 0;
1968 sense_len = par_sense_len = rsp_info_len = resid_len =
1969 fw_resid_len = 0;
1970 if (IS_FWI2_CAPABLE(ha)) {
1971 if (scsi_status & SS_SENSE_LEN_VALID)
1972 sense_len = le32_to_cpu(sts24->sense_len);
1973 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1974 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
1975 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
1976 resid_len = le32_to_cpu(sts24->rsp_residual_count);
1977 if (comp_status == CS_DATA_UNDERRUN)
1978 fw_resid_len = le32_to_cpu(sts24->residual_len);
1979 rsp_info = sts24->data;
1980 sense_data = sts24->data;
1981 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
1982 ox_id = le16_to_cpu(sts24->ox_id);
1983 par_sense_len = sizeof(sts24->data);
1984 } else {
1985 if (scsi_status & SS_SENSE_LEN_VALID)
1986 sense_len = le16_to_cpu(sts->req_sense_length);
1987 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
1988 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
1989 resid_len = le32_to_cpu(sts->residual_length);
1990 rsp_info = sts->rsp_info;
1991 sense_data = sts->req_sense_data;
1992 par_sense_len = sizeof(sts->req_sense_data);
1993 }
1994
1995 /* Check for any FCP transport errors. */
1996 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
1997 /* Sense data lies beyond any FCP RESPONSE data. */
1998 if (IS_FWI2_CAPABLE(ha)) {
1999 sense_data += rsp_info_len;
2000 par_sense_len -= rsp_info_len;
2001 }
2002 if (rsp_info_len > 3 && rsp_info[3]) {
2003 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2004 "FCP I/O protocol failure (0x%x/0x%x).\n",
2005 rsp_info_len, rsp_info[3]);
2006
2007 res = DID_BUS_BUSY << 16;
2008 goto out;
2009 }
2010 }
2011
2012 /* Check for overrun. */
2013 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2014 scsi_status & SS_RESIDUAL_OVER)
2015 comp_status = CS_DATA_OVERRUN;
2016
2017 /*
2018 * Based on Host and scsi status generate status code for Linux
2019 */
2020 switch (comp_status) {
2021 case CS_COMPLETE:
2022 case CS_QUEUE_FULL:
2023 if (scsi_status == 0) {
2024 res = DID_OK << 16;
2025 break;
2026 }
2027 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2028 resid = resid_len;
2029 scsi_set_resid(cp, resid);
2030
2031 if (!lscsi_status &&
2032 ((unsigned)(scsi_bufflen(cp) - resid) <
2033 cp->underflow)) {
2034 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2035 "Mid-layer underflow "
2036 "detected (0x%x of 0x%x bytes).\n",
2037 resid, scsi_bufflen(cp));
2038
2039 res = DID_ERROR << 16;
2040 break;
2041 }
2042 }
2043 res = DID_OK << 16 | lscsi_status;
2044
2045 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2046 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2047 "QUEUE FULL detected.\n");
2048 break;
2049 }
2050 logit = 0;
2051 if (lscsi_status != SS_CHECK_CONDITION)
2052 break;
2053
2054 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2055 if (!(scsi_status & SS_SENSE_LEN_VALID))
2056 break;
2057
2058 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2059 rsp, res);
2060 break;
2061
2062 case CS_DATA_UNDERRUN:
2063 /* Use F/W calculated residual length. */
2064 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2065 scsi_set_resid(cp, resid);
2066 if (scsi_status & SS_RESIDUAL_UNDER) {
2067 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2068 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2069 "Dropped frame(s) detected "
2070 "(0x%x of 0x%x bytes).\n",
2071 resid, scsi_bufflen(cp));
2072
2073 res = DID_ERROR << 16 | lscsi_status;
2074 goto check_scsi_status;
2075 }
2076
2077 if (!lscsi_status &&
2078 ((unsigned)(scsi_bufflen(cp) - resid) <
2079 cp->underflow)) {
2080 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2081 "Mid-layer underflow "
2082 "detected (0x%x of 0x%x bytes).\n",
2083 resid, scsi_bufflen(cp));
2084
2085 res = DID_ERROR << 16;
2086 break;
2087 }
2088 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2089 lscsi_status != SAM_STAT_BUSY) {
2090 /*
2091 * scsi status of task set and busy are considered to be
2092 * task not completed.
2093 */
2094
2095 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2096 "Dropped frame(s) detected (0x%x "
2097 "of 0x%x bytes).\n", resid,
2098 scsi_bufflen(cp));
2099
2100 res = DID_ERROR << 16 | lscsi_status;
2101 goto check_scsi_status;
2102 } else {
2103 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2104 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2105 scsi_status, lscsi_status);
2106 }
2107
2108 res = DID_OK << 16 | lscsi_status;
2109 logit = 0;
2110
2111 check_scsi_status:
2112 /*
2113 * Check to see if SCSI Status is non zero. If so report SCSI
2114 * Status.
2115 */
2116 if (lscsi_status != 0) {
2117 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2118 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2119 "QUEUE FULL detected.\n");
2120 logit = 1;
2121 break;
2122 }
2123 if (lscsi_status != SS_CHECK_CONDITION)
2124 break;
2125
2126 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2127 if (!(scsi_status & SS_SENSE_LEN_VALID))
2128 break;
2129
2130 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2131 sense_len, rsp, res);
2132 }
2133 break;
2134
2135 case CS_PORT_LOGGED_OUT:
2136 case CS_PORT_CONFIG_CHG:
2137 case CS_PORT_BUSY:
2138 case CS_INCOMPLETE:
2139 case CS_PORT_UNAVAILABLE:
2140 case CS_TIMEOUT:
2141 case CS_RESET:
2142
2143 /*
2144 * We are going to have the fc class block the rport
2145 * while we try to recover so instruct the mid layer
2146 * to requeue until the class decides how to handle this.
2147 */
2148 res = DID_TRANSPORT_DISRUPTED << 16;
2149
2150 if (comp_status == CS_TIMEOUT) {
2151 if (IS_FWI2_CAPABLE(ha))
2152 break;
2153 else if ((le16_to_cpu(sts->status_flags) &
2154 SF_LOGOUT_SENT) == 0)
2155 break;
2156 }
2157
2158 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2159 "Port down status: port-state=0x%x.\n",
2160 atomic_read(&fcport->state));
2161
2162 if (atomic_read(&fcport->state) == FCS_ONLINE)
2163 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2164 break;
2165
2166 case CS_ABORTED:
2167 res = DID_RESET << 16;
2168 break;
2169
2170 case CS_DIF_ERROR:
2171 logit = qla2x00_handle_dif_error(sp, sts24);
2172 res = cp->result;
2173 break;
2174
2175 case CS_TRANSPORT:
2176 res = DID_ERROR << 16;
2177
2178 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2179 break;
2180
2181 if (state_flags & BIT_4)
2182 scmd_printk(KERN_WARNING, cp,
2183 "Unsupported device '%s' found.\n",
2184 cp->device->vendor);
2185 break;
2186
2187 default:
2188 res = DID_ERROR << 16;
2189 break;
2190 }
2191
2192 out:
2193 if (logit)
2194 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2195 "FCP command status: 0x%x-0x%x (0x%x) "
2196 "nexus=%ld:%d:%d portid=%02x%02x%02x oxid=0x%x "
2197 "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
2198 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2199 comp_status, scsi_status, res, vha->host_no,
2200 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2201 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2202 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
2203 cp->cmnd[4], cp->cmnd[5], cp->cmnd[6], cp->cmnd[7],
2204 cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
2205 resid_len, fw_resid_len);
2206
2207 if (!res)
2208 qla2x00_do_host_ramp_up(vha);
2209
2210 if (rsp->status_srb == NULL)
2211 sp->done(ha, sp, res);
2212 }
2213
2214 /**
2215 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2216 * @ha: SCSI driver HA context
2217 * @pkt: Entry pointer
2218 *
2219 * Extended sense data.
2220 */
2221 static void
2222 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2223 {
2224 uint8_t sense_sz = 0;
2225 struct qla_hw_data *ha = rsp->hw;
2226 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2227 srb_t *sp = rsp->status_srb;
2228 struct scsi_cmnd *cp;
2229 uint32_t sense_len;
2230 uint8_t *sense_ptr;
2231
2232 if (!sp || !GET_CMD_SENSE_LEN(sp))
2233 return;
2234
2235 sense_len = GET_CMD_SENSE_LEN(sp);
2236 sense_ptr = GET_CMD_SENSE_PTR(sp);
2237
2238 cp = GET_CMD_SP(sp);
2239 if (cp == NULL) {
2240 ql_log(ql_log_warn, vha, 0x3025,
2241 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2242
2243 rsp->status_srb = NULL;
2244 return;
2245 }
2246
2247 if (sense_len > sizeof(pkt->data))
2248 sense_sz = sizeof(pkt->data);
2249 else
2250 sense_sz = sense_len;
2251
2252 /* Move sense data. */
2253 if (IS_FWI2_CAPABLE(ha))
2254 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2255 memcpy(sense_ptr, pkt->data, sense_sz);
2256 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2257 sense_ptr, sense_sz);
2258
2259 sense_len -= sense_sz;
2260 sense_ptr += sense_sz;
2261
2262 SET_CMD_SENSE_PTR(sp, sense_ptr);
2263 SET_CMD_SENSE_LEN(sp, sense_len);
2264
2265 /* Place command on done queue. */
2266 if (sense_len == 0) {
2267 rsp->status_srb = NULL;
2268 sp->done(ha, sp, cp->result);
2269 }
2270 }
2271
2272 /**
2273 * qla2x00_error_entry() - Process an error entry.
2274 * @ha: SCSI driver HA context
2275 * @pkt: Entry pointer
2276 */
2277 static void
2278 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2279 {
2280 srb_t *sp;
2281 struct qla_hw_data *ha = vha->hw;
2282 const char func[] = "ERROR-IOCB";
2283 uint16_t que = MSW(pkt->handle);
2284 struct req_que *req = NULL;
2285 int res = DID_ERROR << 16;
2286
2287 ql_dbg(ql_dbg_async, vha, 0x502a,
2288 "type of error status in response: 0x%x\n", pkt->entry_status);
2289
2290 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2291 goto fatal;
2292
2293 req = ha->req_q_map[que];
2294
2295 if (pkt->entry_status & RF_BUSY)
2296 res = DID_BUS_BUSY << 16;
2297
2298 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2299 if (sp) {
2300 sp->done(ha, sp, res);
2301 return;
2302 }
2303 fatal:
2304 ql_log(ql_log_warn, vha, 0x5030,
2305 "Error entry - invalid handle/queue.\n");
2306
2307 if (IS_QLA82XX(ha))
2308 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2309 else
2310 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2311 qla2xxx_wake_dpc(vha);
2312 }
2313
2314 /**
2315 * qla24xx_mbx_completion() - Process mailbox command completions.
2316 * @ha: SCSI driver HA context
2317 * @mb0: Mailbox0 register
2318 */
2319 static void
2320 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2321 {
2322 uint16_t cnt;
2323 uint32_t mboxes;
2324 uint16_t __iomem *wptr;
2325 struct qla_hw_data *ha = vha->hw;
2326 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2327
2328 /* Read all mbox registers? */
2329 mboxes = (1 << ha->mbx_count) - 1;
2330 if (!ha->mcp)
2331 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2332 else
2333 mboxes = ha->mcp->in_mb;
2334
2335 /* Load return mailbox registers. */
2336 ha->flags.mbox_int = 1;
2337 ha->mailbox_out[0] = mb0;
2338 mboxes >>= 1;
2339 wptr = (uint16_t __iomem *)&reg->mailbox1;
2340
2341 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2342 if (mboxes & BIT_0)
2343 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2344
2345 mboxes >>= 1;
2346 wptr++;
2347 }
2348 }
2349
2350 /**
2351 * qla24xx_process_response_queue() - Process response queue entries.
2352 * @ha: SCSI driver HA context
2353 */
2354 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2355 struct rsp_que *rsp)
2356 {
2357 struct sts_entry_24xx *pkt;
2358 struct qla_hw_data *ha = vha->hw;
2359
2360 if (!vha->flags.online)
2361 return;
2362
2363 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2364 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2365
2366 rsp->ring_index++;
2367 if (rsp->ring_index == rsp->length) {
2368 rsp->ring_index = 0;
2369 rsp->ring_ptr = rsp->ring;
2370 } else {
2371 rsp->ring_ptr++;
2372 }
2373
2374 if (pkt->entry_status != 0) {
2375 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2376
2377 (void)qlt_24xx_process_response_error(vha, pkt);
2378
2379 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2380 wmb();
2381 continue;
2382 }
2383
2384 switch (pkt->entry_type) {
2385 case STATUS_TYPE:
2386 qla2x00_status_entry(vha, rsp, pkt);
2387 break;
2388 case STATUS_CONT_TYPE:
2389 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2390 break;
2391 case VP_RPT_ID_IOCB_TYPE:
2392 qla24xx_report_id_acquisition(vha,
2393 (struct vp_rpt_id_entry_24xx *)pkt);
2394 break;
2395 case LOGINOUT_PORT_IOCB_TYPE:
2396 qla24xx_logio_entry(vha, rsp->req,
2397 (struct logio_entry_24xx *)pkt);
2398 break;
2399 case TSK_MGMT_IOCB_TYPE:
2400 qla24xx_tm_iocb_entry(vha, rsp->req,
2401 (struct tsk_mgmt_entry *)pkt);
2402 break;
2403 case CT_IOCB_TYPE:
2404 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2405 break;
2406 case ELS_IOCB_TYPE:
2407 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2408 break;
2409 case ABTS_RECV_24XX:
2410 /* ensure that the ATIO queue is empty */
2411 qlt_24xx_process_atio_queue(vha);
2412 case ABTS_RESP_24XX:
2413 case CTIO_TYPE7:
2414 case NOTIFY_ACK_TYPE:
2415 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2416 break;
2417 case MARKER_TYPE:
2418 /* Do nothing in this case, this check is to prevent it
2419 * from falling into default case
2420 */
2421 break;
2422 default:
2423 /* Type Not Supported. */
2424 ql_dbg(ql_dbg_async, vha, 0x5042,
2425 "Received unknown response pkt type %x "
2426 "entry status=%x.\n",
2427 pkt->entry_type, pkt->entry_status);
2428 break;
2429 }
2430 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2431 wmb();
2432 }
2433
2434 /* Adjust ring index */
2435 if (IS_QLA82XX(ha)) {
2436 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2437 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2438 } else
2439 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2440 }
2441
2442 static void
2443 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2444 {
2445 int rval;
2446 uint32_t cnt;
2447 struct qla_hw_data *ha = vha->hw;
2448 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2449
2450 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
2451 return;
2452
2453 rval = QLA_SUCCESS;
2454 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2455 RD_REG_DWORD(&reg->iobase_addr);
2456 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2457 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2458 rval == QLA_SUCCESS; cnt--) {
2459 if (cnt) {
2460 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2461 udelay(10);
2462 } else
2463 rval = QLA_FUNCTION_TIMEOUT;
2464 }
2465 if (rval == QLA_SUCCESS)
2466 goto next_test;
2467
2468 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2469 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2470 rval == QLA_SUCCESS; cnt--) {
2471 if (cnt) {
2472 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2473 udelay(10);
2474 } else
2475 rval = QLA_FUNCTION_TIMEOUT;
2476 }
2477 if (rval != QLA_SUCCESS)
2478 goto done;
2479
2480 next_test:
2481 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2482 ql_log(ql_log_info, vha, 0x504c,
2483 "Additional code -- 0x55AA.\n");
2484
2485 done:
2486 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2487 RD_REG_DWORD(&reg->iobase_window);
2488 }
2489
2490 /**
2491 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2492 * @irq:
2493 * @dev_id: SCSI driver HA context
2494 *
2495 * Called by system whenever the host adapter generates an interrupt.
2496 *
2497 * Returns handled flag.
2498 */
2499 irqreturn_t
2500 qla24xx_intr_handler(int irq, void *dev_id)
2501 {
2502 scsi_qla_host_t *vha;
2503 struct qla_hw_data *ha;
2504 struct device_reg_24xx __iomem *reg;
2505 int status;
2506 unsigned long iter;
2507 uint32_t stat;
2508 uint32_t hccr;
2509 uint16_t mb[8];
2510 struct rsp_que *rsp;
2511 unsigned long flags;
2512
2513 rsp = (struct rsp_que *) dev_id;
2514 if (!rsp) {
2515 ql_log(ql_log_info, NULL, 0x5059,
2516 "%s: NULL response queue pointer.\n", __func__);
2517 return IRQ_NONE;
2518 }
2519
2520 ha = rsp->hw;
2521 reg = &ha->iobase->isp24;
2522 status = 0;
2523
2524 if (unlikely(pci_channel_offline(ha->pdev)))
2525 return IRQ_HANDLED;
2526
2527 spin_lock_irqsave(&ha->hardware_lock, flags);
2528 vha = pci_get_drvdata(ha->pdev);
2529 for (iter = 50; iter--; ) {
2530 stat = RD_REG_DWORD(&reg->host_status);
2531 if (stat & HSRX_RISC_PAUSED) {
2532 if (unlikely(pci_channel_offline(ha->pdev)))
2533 break;
2534
2535 hccr = RD_REG_DWORD(&reg->hccr);
2536
2537 ql_log(ql_log_warn, vha, 0x504b,
2538 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2539 hccr);
2540
2541 qla2xxx_check_risc_status(vha);
2542
2543 ha->isp_ops->fw_dump(vha, 1);
2544 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2545 break;
2546 } else if ((stat & HSRX_RISC_INT) == 0)
2547 break;
2548
2549 switch (stat & 0xff) {
2550 case INTR_ROM_MB_SUCCESS:
2551 case INTR_ROM_MB_FAILED:
2552 case INTR_MB_SUCCESS:
2553 case INTR_MB_FAILED:
2554 qla24xx_mbx_completion(vha, MSW(stat));
2555 status |= MBX_INTERRUPT;
2556
2557 break;
2558 case INTR_ASYNC_EVENT:
2559 mb[0] = MSW(stat);
2560 mb[1] = RD_REG_WORD(&reg->mailbox1);
2561 mb[2] = RD_REG_WORD(&reg->mailbox2);
2562 mb[3] = RD_REG_WORD(&reg->mailbox3);
2563 qla2x00_async_event(vha, rsp, mb);
2564 break;
2565 case INTR_RSP_QUE_UPDATE:
2566 case INTR_RSP_QUE_UPDATE_83XX:
2567 qla24xx_process_response_queue(vha, rsp);
2568 break;
2569 case INTR_ATIO_QUE_UPDATE:
2570 qlt_24xx_process_atio_queue(vha);
2571 break;
2572 case INTR_ATIO_RSP_QUE_UPDATE:
2573 qlt_24xx_process_atio_queue(vha);
2574 qla24xx_process_response_queue(vha, rsp);
2575 break;
2576 default:
2577 ql_dbg(ql_dbg_async, vha, 0x504f,
2578 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2579 break;
2580 }
2581 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2582 RD_REG_DWORD_RELAXED(&reg->hccr);
2583 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2584 ndelay(3500);
2585 }
2586 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2587
2588 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2589 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2590 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2591 complete(&ha->mbx_intr_comp);
2592 }
2593
2594 return IRQ_HANDLED;
2595 }
2596
2597 static irqreturn_t
2598 qla24xx_msix_rsp_q(int irq, void *dev_id)
2599 {
2600 struct qla_hw_data *ha;
2601 struct rsp_que *rsp;
2602 struct device_reg_24xx __iomem *reg;
2603 struct scsi_qla_host *vha;
2604 unsigned long flags;
2605
2606 rsp = (struct rsp_que *) dev_id;
2607 if (!rsp) {
2608 ql_log(ql_log_info, NULL, 0x505a,
2609 "%s: NULL response queue pointer.\n", __func__);
2610 return IRQ_NONE;
2611 }
2612 ha = rsp->hw;
2613 reg = &ha->iobase->isp24;
2614
2615 spin_lock_irqsave(&ha->hardware_lock, flags);
2616
2617 vha = pci_get_drvdata(ha->pdev);
2618 qla24xx_process_response_queue(vha, rsp);
2619 if (!ha->flags.disable_msix_handshake) {
2620 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2621 RD_REG_DWORD_RELAXED(&reg->hccr);
2622 }
2623 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2624
2625 return IRQ_HANDLED;
2626 }
2627
2628 static irqreturn_t
2629 qla25xx_msix_rsp_q(int irq, void *dev_id)
2630 {
2631 struct qla_hw_data *ha;
2632 struct rsp_que *rsp;
2633 struct device_reg_24xx __iomem *reg;
2634 unsigned long flags;
2635
2636 rsp = (struct rsp_que *) dev_id;
2637 if (!rsp) {
2638 ql_log(ql_log_info, NULL, 0x505b,
2639 "%s: NULL response queue pointer.\n", __func__);
2640 return IRQ_NONE;
2641 }
2642 ha = rsp->hw;
2643
2644 /* Clear the interrupt, if enabled, for this response queue */
2645 if (!ha->flags.disable_msix_handshake) {
2646 reg = &ha->iobase->isp24;
2647 spin_lock_irqsave(&ha->hardware_lock, flags);
2648 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2649 RD_REG_DWORD_RELAXED(&reg->hccr);
2650 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2651 }
2652 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2653
2654 return IRQ_HANDLED;
2655 }
2656
2657 static irqreturn_t
2658 qla24xx_msix_default(int irq, void *dev_id)
2659 {
2660 scsi_qla_host_t *vha;
2661 struct qla_hw_data *ha;
2662 struct rsp_que *rsp;
2663 struct device_reg_24xx __iomem *reg;
2664 int status;
2665 uint32_t stat;
2666 uint32_t hccr;
2667 uint16_t mb[8];
2668 unsigned long flags;
2669
2670 rsp = (struct rsp_que *) dev_id;
2671 if (!rsp) {
2672 ql_log(ql_log_info, NULL, 0x505c,
2673 "%s: NULL response queue pointer.\n", __func__);
2674 return IRQ_NONE;
2675 }
2676 ha = rsp->hw;
2677 reg = &ha->iobase->isp24;
2678 status = 0;
2679
2680 spin_lock_irqsave(&ha->hardware_lock, flags);
2681 vha = pci_get_drvdata(ha->pdev);
2682 do {
2683 stat = RD_REG_DWORD(&reg->host_status);
2684 if (stat & HSRX_RISC_PAUSED) {
2685 if (unlikely(pci_channel_offline(ha->pdev)))
2686 break;
2687
2688 hccr = RD_REG_DWORD(&reg->hccr);
2689
2690 ql_log(ql_log_info, vha, 0x5050,
2691 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2692 hccr);
2693
2694 qla2xxx_check_risc_status(vha);
2695
2696 ha->isp_ops->fw_dump(vha, 1);
2697 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2698 break;
2699 } else if ((stat & HSRX_RISC_INT) == 0)
2700 break;
2701
2702 switch (stat & 0xff) {
2703 case INTR_ROM_MB_SUCCESS:
2704 case INTR_ROM_MB_FAILED:
2705 case INTR_MB_SUCCESS:
2706 case INTR_MB_FAILED:
2707 qla24xx_mbx_completion(vha, MSW(stat));
2708 status |= MBX_INTERRUPT;
2709
2710 break;
2711 case INTR_ASYNC_EVENT:
2712 mb[0] = MSW(stat);
2713 mb[1] = RD_REG_WORD(&reg->mailbox1);
2714 mb[2] = RD_REG_WORD(&reg->mailbox2);
2715 mb[3] = RD_REG_WORD(&reg->mailbox3);
2716 qla2x00_async_event(vha, rsp, mb);
2717 break;
2718 case INTR_RSP_QUE_UPDATE:
2719 case INTR_RSP_QUE_UPDATE_83XX:
2720 qla24xx_process_response_queue(vha, rsp);
2721 break;
2722 case INTR_ATIO_QUE_UPDATE:
2723 qlt_24xx_process_atio_queue(vha);
2724 break;
2725 case INTR_ATIO_RSP_QUE_UPDATE:
2726 qlt_24xx_process_atio_queue(vha);
2727 qla24xx_process_response_queue(vha, rsp);
2728 break;
2729 default:
2730 ql_dbg(ql_dbg_async, vha, 0x5051,
2731 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2732 break;
2733 }
2734 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2735 } while (0);
2736 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2737
2738 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) &&
2739 (status & MBX_INTERRUPT) && ha->flags.mbox_int) {
2740 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags);
2741 complete(&ha->mbx_intr_comp);
2742 }
2743 return IRQ_HANDLED;
2744 }
2745
2746 /* Interrupt handling helpers. */
2747
2748 struct qla_init_msix_entry {
2749 const char *name;
2750 irq_handler_t handler;
2751 };
2752
2753 static struct qla_init_msix_entry msix_entries[3] = {
2754 { "qla2xxx (default)", qla24xx_msix_default },
2755 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2756 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2757 };
2758
2759 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2760 { "qla2xxx (default)", qla82xx_msix_default },
2761 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2762 };
2763
2764 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2765 { "qla2xxx (default)", qla24xx_msix_default },
2766 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2767 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2768 };
2769
2770 static void
2771 qla24xx_disable_msix(struct qla_hw_data *ha)
2772 {
2773 int i;
2774 struct qla_msix_entry *qentry;
2775 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2776
2777 for (i = 0; i < ha->msix_count; i++) {
2778 qentry = &ha->msix_entries[i];
2779 if (qentry->have_irq)
2780 free_irq(qentry->vector, qentry->rsp);
2781 }
2782 pci_disable_msix(ha->pdev);
2783 kfree(ha->msix_entries);
2784 ha->msix_entries = NULL;
2785 ha->flags.msix_enabled = 0;
2786 ql_dbg(ql_dbg_init, vha, 0x0042,
2787 "Disabled the MSI.\n");
2788 }
2789
2790 static int
2791 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2792 {
2793 #define MIN_MSIX_COUNT 2
2794 int i, ret;
2795 struct msix_entry *entries;
2796 struct qla_msix_entry *qentry;
2797 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2798
2799 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2800 GFP_KERNEL);
2801 if (!entries) {
2802 ql_log(ql_log_warn, vha, 0x00bc,
2803 "Failed to allocate memory for msix_entry.\n");
2804 return -ENOMEM;
2805 }
2806
2807 for (i = 0; i < ha->msix_count; i++)
2808 entries[i].entry = i;
2809
2810 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2811 if (ret) {
2812 if (ret < MIN_MSIX_COUNT)
2813 goto msix_failed;
2814
2815 ql_log(ql_log_warn, vha, 0x00c6,
2816 "MSI-X: Failed to enable support "
2817 "-- %d/%d\n Retry with %d vectors.\n",
2818 ha->msix_count, ret, ret);
2819 ha->msix_count = ret;
2820 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2821 if (ret) {
2822 msix_failed:
2823 ql_log(ql_log_fatal, vha, 0x00c7,
2824 "MSI-X: Failed to enable support, "
2825 "giving up -- %d/%d.\n",
2826 ha->msix_count, ret);
2827 goto msix_out;
2828 }
2829 ha->max_rsp_queues = ha->msix_count - 1;
2830 }
2831 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2832 ha->msix_count, GFP_KERNEL);
2833 if (!ha->msix_entries) {
2834 ql_log(ql_log_fatal, vha, 0x00c8,
2835 "Failed to allocate memory for ha->msix_entries.\n");
2836 ret = -ENOMEM;
2837 goto msix_out;
2838 }
2839 ha->flags.msix_enabled = 1;
2840
2841 for (i = 0; i < ha->msix_count; i++) {
2842 qentry = &ha->msix_entries[i];
2843 qentry->vector = entries[i].vector;
2844 qentry->entry = entries[i].entry;
2845 qentry->have_irq = 0;
2846 qentry->rsp = NULL;
2847 }
2848
2849 /* Enable MSI-X vectors for the base queue */
2850 for (i = 0; i < ha->msix_count; i++) {
2851 qentry = &ha->msix_entries[i];
2852 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
2853 ret = request_irq(qentry->vector,
2854 qla83xx_msix_entries[i].handler,
2855 0, qla83xx_msix_entries[i].name, rsp);
2856 } else if (IS_QLA82XX(ha)) {
2857 ret = request_irq(qentry->vector,
2858 qla82xx_msix_entries[i].handler,
2859 0, qla82xx_msix_entries[i].name, rsp);
2860 } else {
2861 ret = request_irq(qentry->vector,
2862 msix_entries[i].handler,
2863 0, msix_entries[i].name, rsp);
2864 }
2865 if (ret) {
2866 ql_log(ql_log_fatal, vha, 0x00cb,
2867 "MSI-X: unable to register handler -- %x/%d.\n",
2868 qentry->vector, ret);
2869 qla24xx_disable_msix(ha);
2870 ha->mqenable = 0;
2871 goto msix_out;
2872 }
2873 qentry->have_irq = 1;
2874 qentry->rsp = rsp;
2875 rsp->msix = qentry;
2876 }
2877
2878 /* Enable MSI-X vector for response queue update for queue 0 */
2879 if (IS_QLA83XX(ha)) {
2880 if (ha->msixbase && ha->mqiobase &&
2881 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2882 ha->mqenable = 1;
2883 } else
2884 if (ha->mqiobase
2885 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2886 ha->mqenable = 1;
2887 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2888 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2889 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2890 ql_dbg(ql_dbg_init, vha, 0x0055,
2891 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2892 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2893
2894 msix_out:
2895 kfree(entries);
2896 return ret;
2897 }
2898
2899 int
2900 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2901 {
2902 int ret;
2903 device_reg_t __iomem *reg = ha->iobase;
2904 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2905
2906 /* If possible, enable MSI-X. */
2907 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2908 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha))
2909 goto skip_msi;
2910
2911 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2912 (ha->pdev->subsystem_device == 0x7040 ||
2913 ha->pdev->subsystem_device == 0x7041 ||
2914 ha->pdev->subsystem_device == 0x1705)) {
2915 ql_log(ql_log_warn, vha, 0x0034,
2916 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
2917 ha->pdev->subsystem_vendor,
2918 ha->pdev->subsystem_device);
2919 goto skip_msi;
2920 }
2921
2922 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
2923 ql_log(ql_log_warn, vha, 0x0035,
2924 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
2925 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
2926 goto skip_msix;
2927 }
2928
2929 ret = qla24xx_enable_msix(ha, rsp);
2930 if (!ret) {
2931 ql_dbg(ql_dbg_init, vha, 0x0036,
2932 "MSI-X: Enabled (0x%X, 0x%X).\n",
2933 ha->chip_revision, ha->fw_attributes);
2934 goto clear_risc_ints;
2935 }
2936 ql_log(ql_log_info, vha, 0x0037,
2937 "MSI-X Falling back-to MSI mode -%d.\n", ret);
2938 skip_msix:
2939
2940 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2941 !IS_QLA8001(ha) && !IS_QLA82XX(ha))
2942 goto skip_msi;
2943
2944 ret = pci_enable_msi(ha->pdev);
2945 if (!ret) {
2946 ql_dbg(ql_dbg_init, vha, 0x0038,
2947 "MSI: Enabled.\n");
2948 ha->flags.msi_enabled = 1;
2949 } else
2950 ql_log(ql_log_warn, vha, 0x0039,
2951 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
2952
2953 /* Skip INTx on ISP82xx. */
2954 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
2955 return QLA_FUNCTION_FAILED;
2956
2957 skip_msi:
2958
2959 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
2960 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
2961 QLA2XXX_DRIVER_NAME, rsp);
2962 if (ret) {
2963 ql_log(ql_log_warn, vha, 0x003a,
2964 "Failed to reserve interrupt %d already in use.\n",
2965 ha->pdev->irq);
2966 goto fail;
2967 } else if (!ha->flags.msi_enabled)
2968 ql_dbg(ql_dbg_init, vha, 0x0125,
2969 "INTa mode: Enabled.\n");
2970
2971 clear_risc_ints:
2972
2973 spin_lock_irq(&ha->hardware_lock);
2974 if (!IS_FWI2_CAPABLE(ha))
2975 WRT_REG_WORD(&reg->isp.semaphore, 0);
2976 spin_unlock_irq(&ha->hardware_lock);
2977
2978 fail:
2979 return ret;
2980 }
2981
2982 void
2983 qla2x00_free_irqs(scsi_qla_host_t *vha)
2984 {
2985 struct qla_hw_data *ha = vha->hw;
2986 struct rsp_que *rsp;
2987
2988 /*
2989 * We need to check that ha->rsp_q_map is valid in case we are called
2990 * from a probe failure context.
2991 */
2992 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
2993 return;
2994 rsp = ha->rsp_q_map[0];
2995
2996 if (ha->flags.msix_enabled)
2997 qla24xx_disable_msix(ha);
2998 else if (ha->flags.msi_enabled) {
2999 free_irq(ha->pdev->irq, rsp);
3000 pci_disable_msi(ha->pdev);
3001 } else
3002 free_irq(ha->pdev->irq, rsp);
3003 }
3004
3005
3006 int qla25xx_request_irq(struct rsp_que *rsp)
3007 {
3008 struct qla_hw_data *ha = rsp->hw;
3009 struct qla_init_msix_entry *intr = &msix_entries[2];
3010 struct qla_msix_entry *msix = rsp->msix;
3011 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3012 int ret;
3013
3014 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3015 if (ret) {
3016 ql_log(ql_log_fatal, vha, 0x00e6,
3017 "MSI-X: Unable to register handler -- %x/%d.\n",
3018 msix->vector, ret);
3019 return ret;
3020 }
3021 msix->have_irq = 1;
3022 msix->rsp = rsp;
3023 return ret;
3024 }
Linux kernel - Deliverables
This page took 0.163229 seconds and 5 git commands to generate.