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Merge branch 'akpm' (patchbomb from Andrew Morton)
[deliverable/linux.git] / drivers / scsi / qla2xxx / qla_isr.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 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", "32", "10"
361 };
362 #define QLA_LAST_SPEED 7
363
364 if (IS_QLA2100(ha) || IS_QLA2200(ha))
365 return link_speeds[0];
366 else if (speed == 0x13)
367 return link_speeds[QLA_LAST_SPEED];
368 else if (speed < QLA_LAST_SPEED)
369 return link_speeds[speed];
370 else
371 return link_speeds[LS_UNKNOWN];
372 }
373
374 static void
375 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
376 {
377 struct qla_hw_data *ha = vha->hw;
378
379 /*
380 * 8200 AEN Interpretation:
381 * mb[0] = AEN code
382 * mb[1] = AEN Reason code
383 * mb[2] = LSW of Peg-Halt Status-1 Register
384 * mb[6] = MSW of Peg-Halt Status-1 Register
385 * mb[3] = LSW of Peg-Halt Status-2 register
386 * mb[7] = MSW of Peg-Halt Status-2 register
387 * mb[4] = IDC Device-State Register value
388 * mb[5] = IDC Driver-Presence Register value
389 */
390 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
391 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
392 mb[0], mb[1], mb[2], mb[6]);
393 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
394 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
395 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
396
397 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
398 IDC_HEARTBEAT_FAILURE)) {
399 ha->flags.nic_core_hung = 1;
400 ql_log(ql_log_warn, vha, 0x5060,
401 "83XX: F/W Error Reported: Check if reset required.\n");
402
403 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
404 uint32_t protocol_engine_id, fw_err_code, err_level;
405
406 /*
407 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
408 * - PEG-Halt Status-1 Register:
409 * (LSW = mb[2], MSW = mb[6])
410 * Bits 0-7 = protocol-engine ID
411 * Bits 8-28 = f/w error code
412 * Bits 29-31 = Error-level
413 * Error-level 0x1 = Non-Fatal error
414 * Error-level 0x2 = Recoverable Fatal error
415 * Error-level 0x4 = UnRecoverable Fatal error
416 * - PEG-Halt Status-2 Register:
417 * (LSW = mb[3], MSW = mb[7])
418 */
419 protocol_engine_id = (mb[2] & 0xff);
420 fw_err_code = (((mb[2] & 0xff00) >> 8) |
421 ((mb[6] & 0x1fff) << 8));
422 err_level = ((mb[6] & 0xe000) >> 13);
423 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
424 "Register: protocol_engine_id=0x%x "
425 "fw_err_code=0x%x err_level=0x%x.\n",
426 protocol_engine_id, fw_err_code, err_level);
427 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
428 "Register: 0x%x%x.\n", mb[7], mb[3]);
429 if (err_level == ERR_LEVEL_NON_FATAL) {
430 ql_log(ql_log_warn, vha, 0x5063,
431 "Not a fatal error, f/w has recovered "
432 "iteself.\n");
433 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
434 ql_log(ql_log_fatal, vha, 0x5064,
435 "Recoverable Fatal error: Chip reset "
436 "required.\n");
437 qla83xx_schedule_work(vha,
438 QLA83XX_NIC_CORE_RESET);
439 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
440 ql_log(ql_log_fatal, vha, 0x5065,
441 "Unrecoverable Fatal error: Set FAILED "
442 "state, reboot required.\n");
443 qla83xx_schedule_work(vha,
444 QLA83XX_NIC_CORE_UNRECOVERABLE);
445 }
446 }
447
448 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
449 uint16_t peg_fw_state, nw_interface_link_up;
450 uint16_t nw_interface_signal_detect, sfp_status;
451 uint16_t htbt_counter, htbt_monitor_enable;
452 uint16_t sfp_additonal_info, sfp_multirate;
453 uint16_t sfp_tx_fault, link_speed, dcbx_status;
454
455 /*
456 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
457 * - PEG-to-FC Status Register:
458 * (LSW = mb[2], MSW = mb[6])
459 * Bits 0-7 = Peg-Firmware state
460 * Bit 8 = N/W Interface Link-up
461 * Bit 9 = N/W Interface signal detected
462 * Bits 10-11 = SFP Status
463 * SFP Status 0x0 = SFP+ transceiver not expected
464 * SFP Status 0x1 = SFP+ transceiver not present
465 * SFP Status 0x2 = SFP+ transceiver invalid
466 * SFP Status 0x3 = SFP+ transceiver present and
467 * valid
468 * Bits 12-14 = Heartbeat Counter
469 * Bit 15 = Heartbeat Monitor Enable
470 * Bits 16-17 = SFP Additional Info
471 * SFP info 0x0 = Unregocnized transceiver for
472 * Ethernet
473 * SFP info 0x1 = SFP+ brand validation failed
474 * SFP info 0x2 = SFP+ speed validation failed
475 * SFP info 0x3 = SFP+ access error
476 * Bit 18 = SFP Multirate
477 * Bit 19 = SFP Tx Fault
478 * Bits 20-22 = Link Speed
479 * Bits 23-27 = Reserved
480 * Bits 28-30 = DCBX Status
481 * DCBX Status 0x0 = DCBX Disabled
482 * DCBX Status 0x1 = DCBX Enabled
483 * DCBX Status 0x2 = DCBX Exchange error
484 * Bit 31 = Reserved
485 */
486 peg_fw_state = (mb[2] & 0x00ff);
487 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
488 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
489 sfp_status = ((mb[2] & 0x0c00) >> 10);
490 htbt_counter = ((mb[2] & 0x7000) >> 12);
491 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
492 sfp_additonal_info = (mb[6] & 0x0003);
493 sfp_multirate = ((mb[6] & 0x0004) >> 2);
494 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
495 link_speed = ((mb[6] & 0x0070) >> 4);
496 dcbx_status = ((mb[6] & 0x7000) >> 12);
497
498 ql_log(ql_log_warn, vha, 0x5066,
499 "Peg-to-Fc Status Register:\n"
500 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
501 "nw_interface_signal_detect=0x%x"
502 "\nsfp_statis=0x%x.\n ", peg_fw_state,
503 nw_interface_link_up, nw_interface_signal_detect,
504 sfp_status);
505 ql_log(ql_log_warn, vha, 0x5067,
506 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
507 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
508 htbt_counter, htbt_monitor_enable,
509 sfp_additonal_info, sfp_multirate);
510 ql_log(ql_log_warn, vha, 0x5068,
511 "sfp_tx_fault=0x%x, link_state=0x%x, "
512 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
513 dcbx_status);
514
515 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
516 }
517
518 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
519 ql_log(ql_log_warn, vha, 0x5069,
520 "Heartbeat Failure encountered, chip reset "
521 "required.\n");
522
523 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
524 }
525 }
526
527 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
528 ql_log(ql_log_info, vha, 0x506a,
529 "IDC Device-State changed = 0x%x.\n", mb[4]);
530 if (ha->flags.nic_core_reset_owner)
531 return;
532 qla83xx_schedule_work(vha, MBA_IDC_AEN);
533 }
534 }
535
536 int
537 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
538 {
539 struct qla_hw_data *ha = vha->hw;
540 scsi_qla_host_t *vp;
541 uint32_t vp_did;
542 unsigned long flags;
543 int ret = 0;
544
545 if (!ha->num_vhosts)
546 return ret;
547
548 spin_lock_irqsave(&ha->vport_slock, flags);
549 list_for_each_entry(vp, &ha->vp_list, list) {
550 vp_did = vp->d_id.b24;
551 if (vp_did == rscn_entry) {
552 ret = 1;
553 break;
554 }
555 }
556 spin_unlock_irqrestore(&ha->vport_slock, flags);
557
558 return ret;
559 }
560
561 /**
562 * qla2x00_async_event() - Process aynchronous events.
563 * @ha: SCSI driver HA context
564 * @mb: Mailbox registers (0 - 3)
565 */
566 void
567 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
568 {
569 uint16_t handle_cnt;
570 uint16_t cnt, mbx;
571 uint32_t handles[5];
572 struct qla_hw_data *ha = vha->hw;
573 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
574 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
575 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
576 uint32_t rscn_entry, host_pid;
577 unsigned long flags;
578
579 /* Setup to process RIO completion. */
580 handle_cnt = 0;
581 if (IS_CNA_CAPABLE(ha))
582 goto skip_rio;
583 switch (mb[0]) {
584 case MBA_SCSI_COMPLETION:
585 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
586 handle_cnt = 1;
587 break;
588 case MBA_CMPLT_1_16BIT:
589 handles[0] = mb[1];
590 handle_cnt = 1;
591 mb[0] = MBA_SCSI_COMPLETION;
592 break;
593 case MBA_CMPLT_2_16BIT:
594 handles[0] = mb[1];
595 handles[1] = mb[2];
596 handle_cnt = 2;
597 mb[0] = MBA_SCSI_COMPLETION;
598 break;
599 case MBA_CMPLT_3_16BIT:
600 handles[0] = mb[1];
601 handles[1] = mb[2];
602 handles[2] = mb[3];
603 handle_cnt = 3;
604 mb[0] = MBA_SCSI_COMPLETION;
605 break;
606 case MBA_CMPLT_4_16BIT:
607 handles[0] = mb[1];
608 handles[1] = mb[2];
609 handles[2] = mb[3];
610 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
611 handle_cnt = 4;
612 mb[0] = MBA_SCSI_COMPLETION;
613 break;
614 case MBA_CMPLT_5_16BIT:
615 handles[0] = mb[1];
616 handles[1] = mb[2];
617 handles[2] = mb[3];
618 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
619 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
620 handle_cnt = 5;
621 mb[0] = MBA_SCSI_COMPLETION;
622 break;
623 case MBA_CMPLT_2_32BIT:
624 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
625 handles[1] = le32_to_cpu(
626 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
627 RD_MAILBOX_REG(ha, reg, 6));
628 handle_cnt = 2;
629 mb[0] = MBA_SCSI_COMPLETION;
630 break;
631 default:
632 break;
633 }
634 skip_rio:
635 switch (mb[0]) {
636 case MBA_SCSI_COMPLETION: /* Fast Post */
637 if (!vha->flags.online)
638 break;
639
640 for (cnt = 0; cnt < handle_cnt; cnt++)
641 qla2x00_process_completed_request(vha, rsp->req,
642 handles[cnt]);
643 break;
644
645 case MBA_RESET: /* Reset */
646 ql_dbg(ql_dbg_async, vha, 0x5002,
647 "Asynchronous RESET.\n");
648
649 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
650 break;
651
652 case MBA_SYSTEM_ERR: /* System Error */
653 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
654 RD_REG_WORD(&reg24->mailbox7) : 0;
655 ql_log(ql_log_warn, vha, 0x5003,
656 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
657 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
658
659 ha->isp_ops->fw_dump(vha, 1);
660
661 if (IS_FWI2_CAPABLE(ha)) {
662 if (mb[1] == 0 && mb[2] == 0) {
663 ql_log(ql_log_fatal, vha, 0x5004,
664 "Unrecoverable Hardware Error: adapter "
665 "marked OFFLINE!\n");
666 vha->flags.online = 0;
667 vha->device_flags |= DFLG_DEV_FAILED;
668 } else {
669 /* Check to see if MPI timeout occurred */
670 if ((mbx & MBX_3) && (ha->port_no == 0))
671 set_bit(MPI_RESET_NEEDED,
672 &vha->dpc_flags);
673
674 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
675 }
676 } else if (mb[1] == 0) {
677 ql_log(ql_log_fatal, vha, 0x5005,
678 "Unrecoverable Hardware Error: adapter marked "
679 "OFFLINE!\n");
680 vha->flags.online = 0;
681 vha->device_flags |= DFLG_DEV_FAILED;
682 } else
683 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
684 break;
685
686 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
687 ql_log(ql_log_warn, vha, 0x5006,
688 "ISP Request Transfer Error (%x).\n", mb[1]);
689
690 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
691 break;
692
693 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
694 ql_log(ql_log_warn, vha, 0x5007,
695 "ISP Response Transfer Error.\n");
696
697 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
698 break;
699
700 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
701 ql_dbg(ql_dbg_async, vha, 0x5008,
702 "Asynchronous WAKEUP_THRES.\n");
703
704 break;
705 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
706 ql_dbg(ql_dbg_async, vha, 0x5009,
707 "LIP occurred (%x).\n", mb[1]);
708
709 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
710 atomic_set(&vha->loop_state, LOOP_DOWN);
711 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
712 qla2x00_mark_all_devices_lost(vha, 1);
713 }
714
715 if (vha->vp_idx) {
716 atomic_set(&vha->vp_state, VP_FAILED);
717 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
718 }
719
720 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
721 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
722
723 vha->flags.management_server_logged_in = 0;
724 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
725 break;
726
727 case MBA_LOOP_UP: /* Loop Up Event */
728 if (IS_QLA2100(ha) || IS_QLA2200(ha))
729 ha->link_data_rate = PORT_SPEED_1GB;
730 else
731 ha->link_data_rate = mb[1];
732
733 ql_dbg(ql_dbg_async, vha, 0x500a,
734 "LOOP UP detected (%s Gbps).\n",
735 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
736
737 vha->flags.management_server_logged_in = 0;
738 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
739 break;
740
741 case MBA_LOOP_DOWN: /* Loop Down Event */
742 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
743 ? RD_REG_WORD(&reg24->mailbox4) : 0;
744 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
745 : mbx;
746 ql_dbg(ql_dbg_async, vha, 0x500b,
747 "LOOP DOWN detected (%x %x %x %x).\n",
748 mb[1], mb[2], mb[3], mbx);
749
750 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
751 atomic_set(&vha->loop_state, LOOP_DOWN);
752 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
753 vha->device_flags |= DFLG_NO_CABLE;
754 qla2x00_mark_all_devices_lost(vha, 1);
755 }
756
757 if (vha->vp_idx) {
758 atomic_set(&vha->vp_state, VP_FAILED);
759 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
760 }
761
762 vha->flags.management_server_logged_in = 0;
763 ha->link_data_rate = PORT_SPEED_UNKNOWN;
764 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
765 break;
766
767 case MBA_LIP_RESET: /* LIP reset occurred */
768 ql_dbg(ql_dbg_async, vha, 0x500c,
769 "LIP reset occurred (%x).\n", mb[1]);
770
771 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
772 atomic_set(&vha->loop_state, LOOP_DOWN);
773 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
774 qla2x00_mark_all_devices_lost(vha, 1);
775 }
776
777 if (vha->vp_idx) {
778 atomic_set(&vha->vp_state, VP_FAILED);
779 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
780 }
781
782 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
783
784 ha->operating_mode = LOOP;
785 vha->flags.management_server_logged_in = 0;
786 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
787 break;
788
789 /* case MBA_DCBX_COMPLETE: */
790 case MBA_POINT_TO_POINT: /* Point-to-Point */
791 if (IS_QLA2100(ha))
792 break;
793
794 if (IS_CNA_CAPABLE(ha)) {
795 ql_dbg(ql_dbg_async, vha, 0x500d,
796 "DCBX Completed -- %04x %04x %04x.\n",
797 mb[1], mb[2], mb[3]);
798 if (ha->notify_dcbx_comp && !vha->vp_idx)
799 complete(&ha->dcbx_comp);
800
801 } else
802 ql_dbg(ql_dbg_async, vha, 0x500e,
803 "Asynchronous P2P MODE received.\n");
804
805 /*
806 * Until there's a transition from loop down to loop up, treat
807 * this as loop down only.
808 */
809 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
810 atomic_set(&vha->loop_state, LOOP_DOWN);
811 if (!atomic_read(&vha->loop_down_timer))
812 atomic_set(&vha->loop_down_timer,
813 LOOP_DOWN_TIME);
814 qla2x00_mark_all_devices_lost(vha, 1);
815 }
816
817 if (vha->vp_idx) {
818 atomic_set(&vha->vp_state, VP_FAILED);
819 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
820 }
821
822 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
823 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
824
825 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
826 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
827
828 ha->flags.gpsc_supported = 1;
829 vha->flags.management_server_logged_in = 0;
830 break;
831
832 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
833 if (IS_QLA2100(ha))
834 break;
835
836 ql_dbg(ql_dbg_async, vha, 0x500f,
837 "Configuration change detected: value=%x.\n", mb[1]);
838
839 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
840 atomic_set(&vha->loop_state, LOOP_DOWN);
841 if (!atomic_read(&vha->loop_down_timer))
842 atomic_set(&vha->loop_down_timer,
843 LOOP_DOWN_TIME);
844 qla2x00_mark_all_devices_lost(vha, 1);
845 }
846
847 if (vha->vp_idx) {
848 atomic_set(&vha->vp_state, VP_FAILED);
849 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
850 }
851
852 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
853 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
854 break;
855
856 case MBA_PORT_UPDATE: /* Port database update */
857 /*
858 * Handle only global and vn-port update events
859 *
860 * Relevant inputs:
861 * mb[1] = N_Port handle of changed port
862 * OR 0xffff for global event
863 * mb[2] = New login state
864 * 7 = Port logged out
865 * mb[3] = LSB is vp_idx, 0xff = all vps
866 *
867 * Skip processing if:
868 * Event is global, vp_idx is NOT all vps,
869 * vp_idx does not match
870 * Event is not global, vp_idx does not match
871 */
872 if (IS_QLA2XXX_MIDTYPE(ha) &&
873 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
874 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
875 break;
876
877 /* Global event -- port logout or port unavailable. */
878 if (mb[1] == 0xffff && mb[2] == 0x7) {
879 ql_dbg(ql_dbg_async, vha, 0x5010,
880 "Port unavailable %04x %04x %04x.\n",
881 mb[1], mb[2], mb[3]);
882 ql_log(ql_log_warn, vha, 0x505e,
883 "Link is offline.\n");
884
885 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
886 atomic_set(&vha->loop_state, LOOP_DOWN);
887 atomic_set(&vha->loop_down_timer,
888 LOOP_DOWN_TIME);
889 vha->device_flags |= DFLG_NO_CABLE;
890 qla2x00_mark_all_devices_lost(vha, 1);
891 }
892
893 if (vha->vp_idx) {
894 atomic_set(&vha->vp_state, VP_FAILED);
895 fc_vport_set_state(vha->fc_vport,
896 FC_VPORT_FAILED);
897 qla2x00_mark_all_devices_lost(vha, 1);
898 }
899
900 vha->flags.management_server_logged_in = 0;
901 ha->link_data_rate = PORT_SPEED_UNKNOWN;
902 break;
903 }
904
905 /*
906 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
907 * event etc. earlier indicating loop is down) then process
908 * it. Otherwise ignore it and Wait for RSCN to come in.
909 */
910 atomic_set(&vha->loop_down_timer, 0);
911 if (mb[1] != 0xffff || (mb[2] != 0x6 && mb[2] != 0x4)) {
912 ql_dbg(ql_dbg_async, vha, 0x5011,
913 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
914 mb[1], mb[2], mb[3]);
915
916 qlt_async_event(mb[0], vha, mb);
917 break;
918 }
919
920 ql_dbg(ql_dbg_async, vha, 0x5012,
921 "Port database changed %04x %04x %04x.\n",
922 mb[1], mb[2], mb[3]);
923 ql_log(ql_log_warn, vha, 0x505f,
924 "Link is operational (%s Gbps).\n",
925 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
926
927 /*
928 * Mark all devices as missing so we will login again.
929 */
930 atomic_set(&vha->loop_state, LOOP_UP);
931
932 qla2x00_mark_all_devices_lost(vha, 1);
933
934 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
935 set_bit(SCR_PENDING, &vha->dpc_flags);
936
937 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
938 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
939
940 qlt_async_event(mb[0], vha, mb);
941 break;
942
943 case MBA_RSCN_UPDATE: /* State Change Registration */
944 /* Check if the Vport has issued a SCR */
945 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
946 break;
947 /* Only handle SCNs for our Vport index. */
948 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
949 break;
950
951 ql_dbg(ql_dbg_async, vha, 0x5013,
952 "RSCN database changed -- %04x %04x %04x.\n",
953 mb[1], mb[2], mb[3]);
954
955 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
956 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
957 | vha->d_id.b.al_pa;
958 if (rscn_entry == host_pid) {
959 ql_dbg(ql_dbg_async, vha, 0x5014,
960 "Ignoring RSCN update to local host "
961 "port ID (%06x).\n", host_pid);
962 break;
963 }
964
965 /* Ignore reserved bits from RSCN-payload. */
966 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
967
968 /* Skip RSCNs for virtual ports on the same physical port */
969 if (qla2x00_is_a_vp_did(vha, rscn_entry))
970 break;
971
972 atomic_set(&vha->loop_down_timer, 0);
973 vha->flags.management_server_logged_in = 0;
974
975 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
976 set_bit(RSCN_UPDATE, &vha->dpc_flags);
977 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
978 break;
979
980 /* case MBA_RIO_RESPONSE: */
981 case MBA_ZIO_RESPONSE:
982 ql_dbg(ql_dbg_async, vha, 0x5015,
983 "[R|Z]IO update completion.\n");
984
985 if (IS_FWI2_CAPABLE(ha))
986 qla24xx_process_response_queue(vha, rsp);
987 else
988 qla2x00_process_response_queue(rsp);
989 break;
990
991 case MBA_DISCARD_RND_FRAME:
992 ql_dbg(ql_dbg_async, vha, 0x5016,
993 "Discard RND Frame -- %04x %04x %04x.\n",
994 mb[1], mb[2], mb[3]);
995 break;
996
997 case MBA_TRACE_NOTIFICATION:
998 ql_dbg(ql_dbg_async, vha, 0x5017,
999 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1000 break;
1001
1002 case MBA_ISP84XX_ALERT:
1003 ql_dbg(ql_dbg_async, vha, 0x5018,
1004 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1005 mb[1], mb[2], mb[3]);
1006
1007 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1008 switch (mb[1]) {
1009 case A84_PANIC_RECOVERY:
1010 ql_log(ql_log_info, vha, 0x5019,
1011 "Alert 84XX: panic recovery %04x %04x.\n",
1012 mb[2], mb[3]);
1013 break;
1014 case A84_OP_LOGIN_COMPLETE:
1015 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1016 ql_log(ql_log_info, vha, 0x501a,
1017 "Alert 84XX: firmware version %x.\n",
1018 ha->cs84xx->op_fw_version);
1019 break;
1020 case A84_DIAG_LOGIN_COMPLETE:
1021 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1022 ql_log(ql_log_info, vha, 0x501b,
1023 "Alert 84XX: diagnostic firmware version %x.\n",
1024 ha->cs84xx->diag_fw_version);
1025 break;
1026 case A84_GOLD_LOGIN_COMPLETE:
1027 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1028 ha->cs84xx->fw_update = 1;
1029 ql_log(ql_log_info, vha, 0x501c,
1030 "Alert 84XX: gold firmware version %x.\n",
1031 ha->cs84xx->gold_fw_version);
1032 break;
1033 default:
1034 ql_log(ql_log_warn, vha, 0x501d,
1035 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1036 mb[1], mb[2], mb[3]);
1037 }
1038 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1039 break;
1040 case MBA_DCBX_START:
1041 ql_dbg(ql_dbg_async, vha, 0x501e,
1042 "DCBX Started -- %04x %04x %04x.\n",
1043 mb[1], mb[2], mb[3]);
1044 break;
1045 case MBA_DCBX_PARAM_UPDATE:
1046 ql_dbg(ql_dbg_async, vha, 0x501f,
1047 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1048 mb[1], mb[2], mb[3]);
1049 break;
1050 case MBA_FCF_CONF_ERR:
1051 ql_dbg(ql_dbg_async, vha, 0x5020,
1052 "FCF Configuration Error -- %04x %04x %04x.\n",
1053 mb[1], mb[2], mb[3]);
1054 break;
1055 case MBA_IDC_NOTIFY:
1056 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1057 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1058 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1059 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1060 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1061 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1062 /*
1063 * Extend loop down timer since port is active.
1064 */
1065 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1066 atomic_set(&vha->loop_down_timer,
1067 LOOP_DOWN_TIME);
1068 qla2xxx_wake_dpc(vha);
1069 }
1070 }
1071 case MBA_IDC_COMPLETE:
1072 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1073 complete(&ha->lb_portup_comp);
1074 /* Fallthru */
1075 case MBA_IDC_TIME_EXT:
1076 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1077 IS_QLA8044(ha))
1078 qla81xx_idc_event(vha, mb[0], mb[1]);
1079 break;
1080
1081 case MBA_IDC_AEN:
1082 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1083 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1084 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1085 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1086 qla83xx_handle_8200_aen(vha, mb);
1087 break;
1088
1089 default:
1090 ql_dbg(ql_dbg_async, vha, 0x5057,
1091 "Unknown AEN:%04x %04x %04x %04x\n",
1092 mb[0], mb[1], mb[2], mb[3]);
1093 }
1094
1095 qlt_async_event(mb[0], vha, mb);
1096
1097 if (!vha->vp_idx && ha->num_vhosts)
1098 qla2x00_alert_all_vps(rsp, mb);
1099 }
1100
1101 /**
1102 * qla2x00_process_completed_request() - Process a Fast Post response.
1103 * @ha: SCSI driver HA context
1104 * @index: SRB index
1105 */
1106 void
1107 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1108 struct req_que *req, uint32_t index)
1109 {
1110 srb_t *sp;
1111 struct qla_hw_data *ha = vha->hw;
1112
1113 /* Validate handle. */
1114 if (index >= req->num_outstanding_cmds) {
1115 ql_log(ql_log_warn, vha, 0x3014,
1116 "Invalid SCSI command index (%x).\n", index);
1117
1118 if (IS_P3P_TYPE(ha))
1119 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1120 else
1121 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1122 return;
1123 }
1124
1125 sp = req->outstanding_cmds[index];
1126 if (sp) {
1127 /* Free outstanding command slot. */
1128 req->outstanding_cmds[index] = NULL;
1129
1130 /* Save ISP completion status */
1131 sp->done(ha, sp, DID_OK << 16);
1132 } else {
1133 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1134
1135 if (IS_P3P_TYPE(ha))
1136 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1137 else
1138 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1139 }
1140 }
1141
1142 srb_t *
1143 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1144 struct req_que *req, void *iocb)
1145 {
1146 struct qla_hw_data *ha = vha->hw;
1147 sts_entry_t *pkt = iocb;
1148 srb_t *sp = NULL;
1149 uint16_t index;
1150
1151 index = LSW(pkt->handle);
1152 if (index >= req->num_outstanding_cmds) {
1153 ql_log(ql_log_warn, vha, 0x5031,
1154 "Invalid command index (%x).\n", index);
1155 if (IS_P3P_TYPE(ha))
1156 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1157 else
1158 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1159 goto done;
1160 }
1161 sp = req->outstanding_cmds[index];
1162 if (!sp) {
1163 ql_log(ql_log_warn, vha, 0x5032,
1164 "Invalid completion handle (%x) -- timed-out.\n", index);
1165 return sp;
1166 }
1167 if (sp->handle != index) {
1168 ql_log(ql_log_warn, vha, 0x5033,
1169 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1170 return NULL;
1171 }
1172
1173 req->outstanding_cmds[index] = NULL;
1174
1175 done:
1176 return sp;
1177 }
1178
1179 static void
1180 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1181 struct mbx_entry *mbx)
1182 {
1183 const char func[] = "MBX-IOCB";
1184 const char *type;
1185 fc_port_t *fcport;
1186 srb_t *sp;
1187 struct srb_iocb *lio;
1188 uint16_t *data;
1189 uint16_t status;
1190
1191 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1192 if (!sp)
1193 return;
1194
1195 lio = &sp->u.iocb_cmd;
1196 type = sp->name;
1197 fcport = sp->fcport;
1198 data = lio->u.logio.data;
1199
1200 data[0] = MBS_COMMAND_ERROR;
1201 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1202 QLA_LOGIO_LOGIN_RETRIED : 0;
1203 if (mbx->entry_status) {
1204 ql_dbg(ql_dbg_async, vha, 0x5043,
1205 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1206 "entry-status=%x status=%x state-flag=%x "
1207 "status-flags=%x.\n", type, sp->handle,
1208 fcport->d_id.b.domain, fcport->d_id.b.area,
1209 fcport->d_id.b.al_pa, mbx->entry_status,
1210 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1211 le16_to_cpu(mbx->status_flags));
1212
1213 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1214 (uint8_t *)mbx, sizeof(*mbx));
1215
1216 goto logio_done;
1217 }
1218
1219 status = le16_to_cpu(mbx->status);
1220 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1221 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1222 status = 0;
1223 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1224 ql_dbg(ql_dbg_async, vha, 0x5045,
1225 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1226 type, sp->handle, fcport->d_id.b.domain,
1227 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1228 le16_to_cpu(mbx->mb1));
1229
1230 data[0] = MBS_COMMAND_COMPLETE;
1231 if (sp->type == SRB_LOGIN_CMD) {
1232 fcport->port_type = FCT_TARGET;
1233 if (le16_to_cpu(mbx->mb1) & BIT_0)
1234 fcport->port_type = FCT_INITIATOR;
1235 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1236 fcport->flags |= FCF_FCP2_DEVICE;
1237 }
1238 goto logio_done;
1239 }
1240
1241 data[0] = le16_to_cpu(mbx->mb0);
1242 switch (data[0]) {
1243 case MBS_PORT_ID_USED:
1244 data[1] = le16_to_cpu(mbx->mb1);
1245 break;
1246 case MBS_LOOP_ID_USED:
1247 break;
1248 default:
1249 data[0] = MBS_COMMAND_ERROR;
1250 break;
1251 }
1252
1253 ql_log(ql_log_warn, vha, 0x5046,
1254 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1255 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1256 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1257 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1258 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1259 le16_to_cpu(mbx->mb7));
1260
1261 logio_done:
1262 sp->done(vha, sp, 0);
1263 }
1264
1265 static void
1266 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1267 sts_entry_t *pkt, int iocb_type)
1268 {
1269 const char func[] = "CT_IOCB";
1270 const char *type;
1271 srb_t *sp;
1272 struct fc_bsg_job *bsg_job;
1273 uint16_t comp_status;
1274 int res;
1275
1276 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1277 if (!sp)
1278 return;
1279
1280 bsg_job = sp->u.bsg_job;
1281
1282 type = "ct pass-through";
1283
1284 comp_status = le16_to_cpu(pkt->comp_status);
1285
1286 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1287 * fc payload to the caller
1288 */
1289 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1290 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1291
1292 if (comp_status != CS_COMPLETE) {
1293 if (comp_status == CS_DATA_UNDERRUN) {
1294 res = DID_OK << 16;
1295 bsg_job->reply->reply_payload_rcv_len =
1296 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1297
1298 ql_log(ql_log_warn, vha, 0x5048,
1299 "CT pass-through-%s error "
1300 "comp_status-status=0x%x total_byte = 0x%x.\n",
1301 type, comp_status,
1302 bsg_job->reply->reply_payload_rcv_len);
1303 } else {
1304 ql_log(ql_log_warn, vha, 0x5049,
1305 "CT pass-through-%s error "
1306 "comp_status-status=0x%x.\n", type, comp_status);
1307 res = DID_ERROR << 16;
1308 bsg_job->reply->reply_payload_rcv_len = 0;
1309 }
1310 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1311 (uint8_t *)pkt, sizeof(*pkt));
1312 } else {
1313 res = DID_OK << 16;
1314 bsg_job->reply->reply_payload_rcv_len =
1315 bsg_job->reply_payload.payload_len;
1316 bsg_job->reply_len = 0;
1317 }
1318
1319 sp->done(vha, sp, res);
1320 }
1321
1322 static void
1323 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1324 struct sts_entry_24xx *pkt, int iocb_type)
1325 {
1326 const char func[] = "ELS_CT_IOCB";
1327 const char *type;
1328 srb_t *sp;
1329 struct fc_bsg_job *bsg_job;
1330 uint16_t comp_status;
1331 uint32_t fw_status[3];
1332 uint8_t* fw_sts_ptr;
1333 int res;
1334
1335 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1336 if (!sp)
1337 return;
1338 bsg_job = sp->u.bsg_job;
1339
1340 type = NULL;
1341 switch (sp->type) {
1342 case SRB_ELS_CMD_RPT:
1343 case SRB_ELS_CMD_HST:
1344 type = "els";
1345 break;
1346 case SRB_CT_CMD:
1347 type = "ct pass-through";
1348 break;
1349 default:
1350 ql_dbg(ql_dbg_user, vha, 0x503e,
1351 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1352 return;
1353 }
1354
1355 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1356 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1357 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1358
1359 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1360 * fc payload to the caller
1361 */
1362 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1363 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1364
1365 if (comp_status != CS_COMPLETE) {
1366 if (comp_status == CS_DATA_UNDERRUN) {
1367 res = DID_OK << 16;
1368 bsg_job->reply->reply_payload_rcv_len =
1369 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1370
1371 ql_dbg(ql_dbg_user, vha, 0x503f,
1372 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1373 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1374 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1375 le16_to_cpu(((struct els_sts_entry_24xx *)
1376 pkt)->total_byte_count));
1377 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1378 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1379 }
1380 else {
1381 ql_dbg(ql_dbg_user, vha, 0x5040,
1382 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1383 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1384 type, sp->handle, comp_status,
1385 le16_to_cpu(((struct els_sts_entry_24xx *)
1386 pkt)->error_subcode_1),
1387 le16_to_cpu(((struct els_sts_entry_24xx *)
1388 pkt)->error_subcode_2));
1389 res = DID_ERROR << 16;
1390 bsg_job->reply->reply_payload_rcv_len = 0;
1391 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1392 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1393 }
1394 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1395 (uint8_t *)pkt, sizeof(*pkt));
1396 }
1397 else {
1398 res = DID_OK << 16;
1399 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1400 bsg_job->reply_len = 0;
1401 }
1402
1403 sp->done(vha, sp, res);
1404 }
1405
1406 static void
1407 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1408 struct logio_entry_24xx *logio)
1409 {
1410 const char func[] = "LOGIO-IOCB";
1411 const char *type;
1412 fc_port_t *fcport;
1413 srb_t *sp;
1414 struct srb_iocb *lio;
1415 uint16_t *data;
1416 uint32_t iop[2];
1417
1418 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1419 if (!sp)
1420 return;
1421
1422 lio = &sp->u.iocb_cmd;
1423 type = sp->name;
1424 fcport = sp->fcport;
1425 data = lio->u.logio.data;
1426
1427 data[0] = MBS_COMMAND_ERROR;
1428 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1429 QLA_LOGIO_LOGIN_RETRIED : 0;
1430 if (logio->entry_status) {
1431 ql_log(ql_log_warn, fcport->vha, 0x5034,
1432 "Async-%s error entry - hdl=%x"
1433 "portid=%02x%02x%02x entry-status=%x.\n",
1434 type, sp->handle, fcport->d_id.b.domain,
1435 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1436 logio->entry_status);
1437 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1438 (uint8_t *)logio, sizeof(*logio));
1439
1440 goto logio_done;
1441 }
1442
1443 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1444 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1445 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1446 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1447 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1448 le32_to_cpu(logio->io_parameter[0]));
1449
1450 data[0] = MBS_COMMAND_COMPLETE;
1451 if (sp->type != SRB_LOGIN_CMD)
1452 goto logio_done;
1453
1454 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1455 if (iop[0] & BIT_4) {
1456 fcport->port_type = FCT_TARGET;
1457 if (iop[0] & BIT_8)
1458 fcport->flags |= FCF_FCP2_DEVICE;
1459 } else if (iop[0] & BIT_5)
1460 fcport->port_type = FCT_INITIATOR;
1461
1462 if (iop[0] & BIT_7)
1463 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1464
1465 if (logio->io_parameter[7] || logio->io_parameter[8])
1466 fcport->supported_classes |= FC_COS_CLASS2;
1467 if (logio->io_parameter[9] || logio->io_parameter[10])
1468 fcport->supported_classes |= FC_COS_CLASS3;
1469
1470 goto logio_done;
1471 }
1472
1473 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1474 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1475 switch (iop[0]) {
1476 case LSC_SCODE_PORTID_USED:
1477 data[0] = MBS_PORT_ID_USED;
1478 data[1] = LSW(iop[1]);
1479 break;
1480 case LSC_SCODE_NPORT_USED:
1481 data[0] = MBS_LOOP_ID_USED;
1482 break;
1483 default:
1484 data[0] = MBS_COMMAND_ERROR;
1485 break;
1486 }
1487
1488 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1489 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1490 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1491 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1492 le16_to_cpu(logio->comp_status),
1493 le32_to_cpu(logio->io_parameter[0]),
1494 le32_to_cpu(logio->io_parameter[1]));
1495
1496 logio_done:
1497 sp->done(vha, sp, 0);
1498 }
1499
1500 static void
1501 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *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
1510 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1511 if (!sp)
1512 return;
1513
1514 iocb = &sp->u.iocb_cmd;
1515 type = sp->name;
1516 fcport = sp->fcport;
1517 iocb->u.tmf.data = QLA_SUCCESS;
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 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1524 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1525 ql_log(ql_log_warn, fcport->vha, 0x5039,
1526 "Async-%s error - hdl=%x completion status(%x).\n",
1527 type, sp->handle, sts->comp_status);
1528 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1529 } else if ((le16_to_cpu(sts->scsi_status) &
1530 SS_RESPONSE_INFO_LEN_VALID)) {
1531 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1532 ql_log(ql_log_warn, fcport->vha, 0x503b,
1533 "Async-%s error - hdl=%x not enough response(%d).\n",
1534 type, sp->handle, sts->rsp_data_len);
1535 } else if (sts->data[3]) {
1536 ql_log(ql_log_warn, fcport->vha, 0x503c,
1537 "Async-%s error - hdl=%x response(%x).\n",
1538 type, sp->handle, sts->data[3]);
1539 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1540 }
1541 }
1542
1543 if (iocb->u.tmf.data != QLA_SUCCESS)
1544 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1545 (uint8_t *)sts, sizeof(*sts));
1546
1547 sp->done(vha, sp, 0);
1548 }
1549
1550 /**
1551 * qla2x00_process_response_queue() - Process response queue entries.
1552 * @ha: SCSI driver HA context
1553 */
1554 void
1555 qla2x00_process_response_queue(struct rsp_que *rsp)
1556 {
1557 struct scsi_qla_host *vha;
1558 struct qla_hw_data *ha = rsp->hw;
1559 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1560 sts_entry_t *pkt;
1561 uint16_t handle_cnt;
1562 uint16_t cnt;
1563
1564 vha = pci_get_drvdata(ha->pdev);
1565
1566 if (!vha->flags.online)
1567 return;
1568
1569 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1570 pkt = (sts_entry_t *)rsp->ring_ptr;
1571
1572 rsp->ring_index++;
1573 if (rsp->ring_index == rsp->length) {
1574 rsp->ring_index = 0;
1575 rsp->ring_ptr = rsp->ring;
1576 } else {
1577 rsp->ring_ptr++;
1578 }
1579
1580 if (pkt->entry_status != 0) {
1581 qla2x00_error_entry(vha, rsp, pkt);
1582 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1583 wmb();
1584 continue;
1585 }
1586
1587 switch (pkt->entry_type) {
1588 case STATUS_TYPE:
1589 qla2x00_status_entry(vha, rsp, pkt);
1590 break;
1591 case STATUS_TYPE_21:
1592 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1593 for (cnt = 0; cnt < handle_cnt; cnt++) {
1594 qla2x00_process_completed_request(vha, rsp->req,
1595 ((sts21_entry_t *)pkt)->handle[cnt]);
1596 }
1597 break;
1598 case STATUS_TYPE_22:
1599 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1600 for (cnt = 0; cnt < handle_cnt; cnt++) {
1601 qla2x00_process_completed_request(vha, rsp->req,
1602 ((sts22_entry_t *)pkt)->handle[cnt]);
1603 }
1604 break;
1605 case STATUS_CONT_TYPE:
1606 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1607 break;
1608 case MBX_IOCB_TYPE:
1609 qla2x00_mbx_iocb_entry(vha, rsp->req,
1610 (struct mbx_entry *)pkt);
1611 break;
1612 case CT_IOCB_TYPE:
1613 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1614 break;
1615 default:
1616 /* Type Not Supported. */
1617 ql_log(ql_log_warn, vha, 0x504a,
1618 "Received unknown response pkt type %x "
1619 "entry status=%x.\n",
1620 pkt->entry_type, pkt->entry_status);
1621 break;
1622 }
1623 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1624 wmb();
1625 }
1626
1627 /* Adjust ring index */
1628 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1629 }
1630
1631 static inline void
1632 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1633 uint32_t sense_len, struct rsp_que *rsp, int res)
1634 {
1635 struct scsi_qla_host *vha = sp->fcport->vha;
1636 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1637 uint32_t track_sense_len;
1638
1639 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1640 sense_len = SCSI_SENSE_BUFFERSIZE;
1641
1642 SET_CMD_SENSE_LEN(sp, sense_len);
1643 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1644 track_sense_len = sense_len;
1645
1646 if (sense_len > par_sense_len)
1647 sense_len = par_sense_len;
1648
1649 memcpy(cp->sense_buffer, sense_data, sense_len);
1650
1651 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1652 track_sense_len -= sense_len;
1653 SET_CMD_SENSE_LEN(sp, track_sense_len);
1654
1655 if (track_sense_len != 0) {
1656 rsp->status_srb = sp;
1657 cp->result = res;
1658 }
1659
1660 if (sense_len) {
1661 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1662 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1663 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1664 cp);
1665 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1666 cp->sense_buffer, sense_len);
1667 }
1668 }
1669
1670 struct scsi_dif_tuple {
1671 __be16 guard; /* Checksum */
1672 __be16 app_tag; /* APPL identifier */
1673 __be32 ref_tag; /* Target LBA or indirect LBA */
1674 };
1675
1676 /*
1677 * Checks the guard or meta-data for the type of error
1678 * detected by the HBA. In case of errors, we set the
1679 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1680 * to indicate to the kernel that the HBA detected error.
1681 */
1682 static inline int
1683 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1684 {
1685 struct scsi_qla_host *vha = sp->fcport->vha;
1686 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1687 uint8_t *ap = &sts24->data[12];
1688 uint8_t *ep = &sts24->data[20];
1689 uint32_t e_ref_tag, a_ref_tag;
1690 uint16_t e_app_tag, a_app_tag;
1691 uint16_t e_guard, a_guard;
1692
1693 /*
1694 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1695 * would make guard field appear at offset 2
1696 */
1697 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1698 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1699 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1700 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1701 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1702 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1703
1704 ql_dbg(ql_dbg_io, vha, 0x3023,
1705 "iocb(s) %p Returned STATUS.\n", sts24);
1706
1707 ql_dbg(ql_dbg_io, vha, 0x3024,
1708 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1709 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1710 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1711 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1712 a_app_tag, e_app_tag, a_guard, e_guard);
1713
1714 /*
1715 * Ignore sector if:
1716 * For type 3: ref & app tag is all 'f's
1717 * For type 0,1,2: app tag is all 'f's
1718 */
1719 if ((a_app_tag == 0xffff) &&
1720 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1721 (a_ref_tag == 0xffffffff))) {
1722 uint32_t blocks_done, resid;
1723 sector_t lba_s = scsi_get_lba(cmd);
1724
1725 /* 2TB boundary case covered automatically with this */
1726 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1727
1728 resid = scsi_bufflen(cmd) - (blocks_done *
1729 cmd->device->sector_size);
1730
1731 scsi_set_resid(cmd, resid);
1732 cmd->result = DID_OK << 16;
1733
1734 /* Update protection tag */
1735 if (scsi_prot_sg_count(cmd)) {
1736 uint32_t i, j = 0, k = 0, num_ent;
1737 struct scatterlist *sg;
1738 struct sd_dif_tuple *spt;
1739
1740 /* Patch the corresponding protection tags */
1741 scsi_for_each_prot_sg(cmd, sg,
1742 scsi_prot_sg_count(cmd), i) {
1743 num_ent = sg_dma_len(sg) / 8;
1744 if (k + num_ent < blocks_done) {
1745 k += num_ent;
1746 continue;
1747 }
1748 j = blocks_done - k - 1;
1749 k = blocks_done;
1750 break;
1751 }
1752
1753 if (k != blocks_done) {
1754 ql_log(ql_log_warn, vha, 0x302f,
1755 "unexpected tag values tag:lba=%x:%llx)\n",
1756 e_ref_tag, (unsigned long long)lba_s);
1757 return 1;
1758 }
1759
1760 spt = page_address(sg_page(sg)) + sg->offset;
1761 spt += j;
1762
1763 spt->app_tag = 0xffff;
1764 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1765 spt->ref_tag = 0xffffffff;
1766 }
1767
1768 return 0;
1769 }
1770
1771 /* check guard */
1772 if (e_guard != a_guard) {
1773 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1774 0x10, 0x1);
1775 set_driver_byte(cmd, DRIVER_SENSE);
1776 set_host_byte(cmd, DID_ABORT);
1777 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1778 return 1;
1779 }
1780
1781 /* check ref tag */
1782 if (e_ref_tag != a_ref_tag) {
1783 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1784 0x10, 0x3);
1785 set_driver_byte(cmd, DRIVER_SENSE);
1786 set_host_byte(cmd, DID_ABORT);
1787 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1788 return 1;
1789 }
1790
1791 /* check appl tag */
1792 if (e_app_tag != a_app_tag) {
1793 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1794 0x10, 0x2);
1795 set_driver_byte(cmd, DRIVER_SENSE);
1796 set_host_byte(cmd, DID_ABORT);
1797 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1798 return 1;
1799 }
1800
1801 return 1;
1802 }
1803
1804 static void
1805 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1806 struct req_que *req, uint32_t index)
1807 {
1808 struct qla_hw_data *ha = vha->hw;
1809 srb_t *sp;
1810 uint16_t comp_status;
1811 uint16_t scsi_status;
1812 uint16_t thread_id;
1813 uint32_t rval = EXT_STATUS_OK;
1814 struct fc_bsg_job *bsg_job = NULL;
1815 sts_entry_t *sts;
1816 struct sts_entry_24xx *sts24;
1817 sts = (sts_entry_t *) pkt;
1818 sts24 = (struct sts_entry_24xx *) pkt;
1819
1820 /* Validate handle. */
1821 if (index >= req->num_outstanding_cmds) {
1822 ql_log(ql_log_warn, vha, 0x70af,
1823 "Invalid SCSI completion handle 0x%x.\n", index);
1824 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1825 return;
1826 }
1827
1828 sp = req->outstanding_cmds[index];
1829 if (sp) {
1830 /* Free outstanding command slot. */
1831 req->outstanding_cmds[index] = NULL;
1832 bsg_job = sp->u.bsg_job;
1833 } else {
1834 ql_log(ql_log_warn, vha, 0x70b0,
1835 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1836 req->id, index);
1837
1838 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1839 return;
1840 }
1841
1842 if (IS_FWI2_CAPABLE(ha)) {
1843 comp_status = le16_to_cpu(sts24->comp_status);
1844 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1845 } else {
1846 comp_status = le16_to_cpu(sts->comp_status);
1847 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1848 }
1849
1850 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1851 switch (comp_status) {
1852 case CS_COMPLETE:
1853 if (scsi_status == 0) {
1854 bsg_job->reply->reply_payload_rcv_len =
1855 bsg_job->reply_payload.payload_len;
1856 vha->qla_stats.input_bytes +=
1857 bsg_job->reply->reply_payload_rcv_len;
1858 vha->qla_stats.input_requests++;
1859 rval = EXT_STATUS_OK;
1860 }
1861 goto done;
1862
1863 case CS_DATA_OVERRUN:
1864 ql_dbg(ql_dbg_user, vha, 0x70b1,
1865 "Command completed with date overrun thread_id=%d\n",
1866 thread_id);
1867 rval = EXT_STATUS_DATA_OVERRUN;
1868 break;
1869
1870 case CS_DATA_UNDERRUN:
1871 ql_dbg(ql_dbg_user, vha, 0x70b2,
1872 "Command completed with date underrun thread_id=%d\n",
1873 thread_id);
1874 rval = EXT_STATUS_DATA_UNDERRUN;
1875 break;
1876 case CS_BIDIR_RD_OVERRUN:
1877 ql_dbg(ql_dbg_user, vha, 0x70b3,
1878 "Command completed with read data overrun thread_id=%d\n",
1879 thread_id);
1880 rval = EXT_STATUS_DATA_OVERRUN;
1881 break;
1882
1883 case CS_BIDIR_RD_WR_OVERRUN:
1884 ql_dbg(ql_dbg_user, vha, 0x70b4,
1885 "Command completed with read and write data overrun "
1886 "thread_id=%d\n", thread_id);
1887 rval = EXT_STATUS_DATA_OVERRUN;
1888 break;
1889
1890 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1891 ql_dbg(ql_dbg_user, vha, 0x70b5,
1892 "Command completed with read data over and write data "
1893 "underrun thread_id=%d\n", thread_id);
1894 rval = EXT_STATUS_DATA_OVERRUN;
1895 break;
1896
1897 case CS_BIDIR_RD_UNDERRUN:
1898 ql_dbg(ql_dbg_user, vha, 0x70b6,
1899 "Command completed with read data data underrun "
1900 "thread_id=%d\n", thread_id);
1901 rval = EXT_STATUS_DATA_UNDERRUN;
1902 break;
1903
1904 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1905 ql_dbg(ql_dbg_user, vha, 0x70b7,
1906 "Command completed with read data under and write data "
1907 "overrun thread_id=%d\n", thread_id);
1908 rval = EXT_STATUS_DATA_UNDERRUN;
1909 break;
1910
1911 case CS_BIDIR_RD_WR_UNDERRUN:
1912 ql_dbg(ql_dbg_user, vha, 0x70b8,
1913 "Command completed with read and write data underrun "
1914 "thread_id=%d\n", thread_id);
1915 rval = EXT_STATUS_DATA_UNDERRUN;
1916 break;
1917
1918 case CS_BIDIR_DMA:
1919 ql_dbg(ql_dbg_user, vha, 0x70b9,
1920 "Command completed with data DMA error thread_id=%d\n",
1921 thread_id);
1922 rval = EXT_STATUS_DMA_ERR;
1923 break;
1924
1925 case CS_TIMEOUT:
1926 ql_dbg(ql_dbg_user, vha, 0x70ba,
1927 "Command completed with timeout thread_id=%d\n",
1928 thread_id);
1929 rval = EXT_STATUS_TIMEOUT;
1930 break;
1931 default:
1932 ql_dbg(ql_dbg_user, vha, 0x70bb,
1933 "Command completed with completion status=0x%x "
1934 "thread_id=%d\n", comp_status, thread_id);
1935 rval = EXT_STATUS_ERR;
1936 break;
1937 }
1938 bsg_job->reply->reply_payload_rcv_len = 0;
1939
1940 done:
1941 /* Return the vendor specific reply to API */
1942 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1943 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1944 /* Always return DID_OK, bsg will send the vendor specific response
1945 * in this case only */
1946 sp->done(vha, sp, (DID_OK << 6));
1947
1948 }
1949
1950 /**
1951 * qla2x00_status_entry() - Process a Status IOCB entry.
1952 * @ha: SCSI driver HA context
1953 * @pkt: Entry pointer
1954 */
1955 static void
1956 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1957 {
1958 srb_t *sp;
1959 fc_port_t *fcport;
1960 struct scsi_cmnd *cp;
1961 sts_entry_t *sts;
1962 struct sts_entry_24xx *sts24;
1963 uint16_t comp_status;
1964 uint16_t scsi_status;
1965 uint16_t ox_id;
1966 uint8_t lscsi_status;
1967 int32_t resid;
1968 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1969 fw_resid_len;
1970 uint8_t *rsp_info, *sense_data;
1971 struct qla_hw_data *ha = vha->hw;
1972 uint32_t handle;
1973 uint16_t que;
1974 struct req_que *req;
1975 int logit = 1;
1976 int res = 0;
1977 uint16_t state_flags = 0;
1978
1979 sts = (sts_entry_t *) pkt;
1980 sts24 = (struct sts_entry_24xx *) pkt;
1981 if (IS_FWI2_CAPABLE(ha)) {
1982 comp_status = le16_to_cpu(sts24->comp_status);
1983 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1984 state_flags = le16_to_cpu(sts24->state_flags);
1985 } else {
1986 comp_status = le16_to_cpu(sts->comp_status);
1987 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1988 }
1989 handle = (uint32_t) LSW(sts->handle);
1990 que = MSW(sts->handle);
1991 req = ha->req_q_map[que];
1992
1993 /* Check for invalid queue pointer */
1994 if (req == NULL ||
1995 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
1996 ql_dbg(ql_dbg_io, vha, 0x3059,
1997 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
1998 "que=%u.\n", sts->handle, req, que);
1999 return;
2000 }
2001
2002 /* Validate handle. */
2003 if (handle < req->num_outstanding_cmds)
2004 sp = req->outstanding_cmds[handle];
2005 else
2006 sp = NULL;
2007
2008 if (sp == NULL) {
2009 ql_dbg(ql_dbg_io, vha, 0x3017,
2010 "Invalid status handle (0x%x).\n", sts->handle);
2011
2012 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2013 if (IS_P3P_TYPE(ha))
2014 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2015 else
2016 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2017 qla2xxx_wake_dpc(vha);
2018 }
2019 return;
2020 }
2021
2022 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2023 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2024 return;
2025 }
2026
2027 /* Task Management completion. */
2028 if (sp->type == SRB_TM_CMD) {
2029 qla24xx_tm_iocb_entry(vha, req, pkt);
2030 return;
2031 }
2032
2033 /* Fast path completion. */
2034 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2035 qla2x00_process_completed_request(vha, req, handle);
2036
2037 return;
2038 }
2039
2040 req->outstanding_cmds[handle] = NULL;
2041 cp = GET_CMD_SP(sp);
2042 if (cp == NULL) {
2043 ql_dbg(ql_dbg_io, vha, 0x3018,
2044 "Command already returned (0x%x/%p).\n",
2045 sts->handle, sp);
2046
2047 return;
2048 }
2049
2050 lscsi_status = scsi_status & STATUS_MASK;
2051
2052 fcport = sp->fcport;
2053
2054 ox_id = 0;
2055 sense_len = par_sense_len = rsp_info_len = resid_len =
2056 fw_resid_len = 0;
2057 if (IS_FWI2_CAPABLE(ha)) {
2058 if (scsi_status & SS_SENSE_LEN_VALID)
2059 sense_len = le32_to_cpu(sts24->sense_len);
2060 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2061 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2062 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2063 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2064 if (comp_status == CS_DATA_UNDERRUN)
2065 fw_resid_len = le32_to_cpu(sts24->residual_len);
2066 rsp_info = sts24->data;
2067 sense_data = sts24->data;
2068 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2069 ox_id = le16_to_cpu(sts24->ox_id);
2070 par_sense_len = sizeof(sts24->data);
2071 } else {
2072 if (scsi_status & SS_SENSE_LEN_VALID)
2073 sense_len = le16_to_cpu(sts->req_sense_length);
2074 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2075 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2076 resid_len = le32_to_cpu(sts->residual_length);
2077 rsp_info = sts->rsp_info;
2078 sense_data = sts->req_sense_data;
2079 par_sense_len = sizeof(sts->req_sense_data);
2080 }
2081
2082 /* Check for any FCP transport errors. */
2083 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2084 /* Sense data lies beyond any FCP RESPONSE data. */
2085 if (IS_FWI2_CAPABLE(ha)) {
2086 sense_data += rsp_info_len;
2087 par_sense_len -= rsp_info_len;
2088 }
2089 if (rsp_info_len > 3 && rsp_info[3]) {
2090 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2091 "FCP I/O protocol failure (0x%x/0x%x).\n",
2092 rsp_info_len, rsp_info[3]);
2093
2094 res = DID_BUS_BUSY << 16;
2095 goto out;
2096 }
2097 }
2098
2099 /* Check for overrun. */
2100 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2101 scsi_status & SS_RESIDUAL_OVER)
2102 comp_status = CS_DATA_OVERRUN;
2103
2104 /*
2105 * Based on Host and scsi status generate status code for Linux
2106 */
2107 switch (comp_status) {
2108 case CS_COMPLETE:
2109 case CS_QUEUE_FULL:
2110 if (scsi_status == 0) {
2111 res = DID_OK << 16;
2112 break;
2113 }
2114 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2115 resid = resid_len;
2116 scsi_set_resid(cp, resid);
2117
2118 if (!lscsi_status &&
2119 ((unsigned)(scsi_bufflen(cp) - resid) <
2120 cp->underflow)) {
2121 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2122 "Mid-layer underflow "
2123 "detected (0x%x of 0x%x bytes).\n",
2124 resid, scsi_bufflen(cp));
2125
2126 res = DID_ERROR << 16;
2127 break;
2128 }
2129 }
2130 res = DID_OK << 16 | lscsi_status;
2131
2132 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2133 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2134 "QUEUE FULL detected.\n");
2135 break;
2136 }
2137 logit = 0;
2138 if (lscsi_status != SS_CHECK_CONDITION)
2139 break;
2140
2141 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2142 if (!(scsi_status & SS_SENSE_LEN_VALID))
2143 break;
2144
2145 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2146 rsp, res);
2147 break;
2148
2149 case CS_DATA_UNDERRUN:
2150 /* Use F/W calculated residual length. */
2151 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2152 scsi_set_resid(cp, resid);
2153 if (scsi_status & SS_RESIDUAL_UNDER) {
2154 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2155 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2156 "Dropped frame(s) detected "
2157 "(0x%x of 0x%x bytes).\n",
2158 resid, scsi_bufflen(cp));
2159
2160 res = DID_ERROR << 16 | lscsi_status;
2161 goto check_scsi_status;
2162 }
2163
2164 if (!lscsi_status &&
2165 ((unsigned)(scsi_bufflen(cp) - resid) <
2166 cp->underflow)) {
2167 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2168 "Mid-layer underflow "
2169 "detected (0x%x of 0x%x bytes).\n",
2170 resid, scsi_bufflen(cp));
2171
2172 res = DID_ERROR << 16;
2173 break;
2174 }
2175 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2176 lscsi_status != SAM_STAT_BUSY) {
2177 /*
2178 * scsi status of task set and busy are considered to be
2179 * task not completed.
2180 */
2181
2182 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2183 "Dropped frame(s) detected (0x%x "
2184 "of 0x%x bytes).\n", resid,
2185 scsi_bufflen(cp));
2186
2187 res = DID_ERROR << 16 | lscsi_status;
2188 goto check_scsi_status;
2189 } else {
2190 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2191 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2192 scsi_status, lscsi_status);
2193 }
2194
2195 res = DID_OK << 16 | lscsi_status;
2196 logit = 0;
2197
2198 check_scsi_status:
2199 /*
2200 * Check to see if SCSI Status is non zero. If so report SCSI
2201 * Status.
2202 */
2203 if (lscsi_status != 0) {
2204 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2205 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2206 "QUEUE FULL detected.\n");
2207 logit = 1;
2208 break;
2209 }
2210 if (lscsi_status != SS_CHECK_CONDITION)
2211 break;
2212
2213 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2214 if (!(scsi_status & SS_SENSE_LEN_VALID))
2215 break;
2216
2217 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2218 sense_len, rsp, res);
2219 }
2220 break;
2221
2222 case CS_PORT_LOGGED_OUT:
2223 case CS_PORT_CONFIG_CHG:
2224 case CS_PORT_BUSY:
2225 case CS_INCOMPLETE:
2226 case CS_PORT_UNAVAILABLE:
2227 case CS_TIMEOUT:
2228 case CS_RESET:
2229
2230 /*
2231 * We are going to have the fc class block the rport
2232 * while we try to recover so instruct the mid layer
2233 * to requeue until the class decides how to handle this.
2234 */
2235 res = DID_TRANSPORT_DISRUPTED << 16;
2236
2237 if (comp_status == CS_TIMEOUT) {
2238 if (IS_FWI2_CAPABLE(ha))
2239 break;
2240 else if ((le16_to_cpu(sts->status_flags) &
2241 SF_LOGOUT_SENT) == 0)
2242 break;
2243 }
2244
2245 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2246 "Port to be marked lost on fcport=%02x%02x%02x, current "
2247 "port state= %s.\n", fcport->d_id.b.domain,
2248 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2249 port_state_str[atomic_read(&fcport->state)]);
2250
2251 if (atomic_read(&fcport->state) == FCS_ONLINE)
2252 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2253 break;
2254
2255 case CS_ABORTED:
2256 res = DID_RESET << 16;
2257 break;
2258
2259 case CS_DIF_ERROR:
2260 logit = qla2x00_handle_dif_error(sp, sts24);
2261 res = cp->result;
2262 break;
2263
2264 case CS_TRANSPORT:
2265 res = DID_ERROR << 16;
2266
2267 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2268 break;
2269
2270 if (state_flags & BIT_4)
2271 scmd_printk(KERN_WARNING, cp,
2272 "Unsupported device '%s' found.\n",
2273 cp->device->vendor);
2274 break;
2275
2276 default:
2277 res = DID_ERROR << 16;
2278 break;
2279 }
2280
2281 out:
2282 if (logit)
2283 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2284 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2285 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2286 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2287 comp_status, scsi_status, res, vha->host_no,
2288 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2289 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2290 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2291 resid_len, fw_resid_len);
2292
2293 if (rsp->status_srb == NULL)
2294 sp->done(ha, sp, res);
2295 }
2296
2297 /**
2298 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2299 * @ha: SCSI driver HA context
2300 * @pkt: Entry pointer
2301 *
2302 * Extended sense data.
2303 */
2304 static void
2305 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2306 {
2307 uint8_t sense_sz = 0;
2308 struct qla_hw_data *ha = rsp->hw;
2309 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2310 srb_t *sp = rsp->status_srb;
2311 struct scsi_cmnd *cp;
2312 uint32_t sense_len;
2313 uint8_t *sense_ptr;
2314
2315 if (!sp || !GET_CMD_SENSE_LEN(sp))
2316 return;
2317
2318 sense_len = GET_CMD_SENSE_LEN(sp);
2319 sense_ptr = GET_CMD_SENSE_PTR(sp);
2320
2321 cp = GET_CMD_SP(sp);
2322 if (cp == NULL) {
2323 ql_log(ql_log_warn, vha, 0x3025,
2324 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2325
2326 rsp->status_srb = NULL;
2327 return;
2328 }
2329
2330 if (sense_len > sizeof(pkt->data))
2331 sense_sz = sizeof(pkt->data);
2332 else
2333 sense_sz = sense_len;
2334
2335 /* Move sense data. */
2336 if (IS_FWI2_CAPABLE(ha))
2337 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2338 memcpy(sense_ptr, pkt->data, sense_sz);
2339 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2340 sense_ptr, sense_sz);
2341
2342 sense_len -= sense_sz;
2343 sense_ptr += sense_sz;
2344
2345 SET_CMD_SENSE_PTR(sp, sense_ptr);
2346 SET_CMD_SENSE_LEN(sp, sense_len);
2347
2348 /* Place command on done queue. */
2349 if (sense_len == 0) {
2350 rsp->status_srb = NULL;
2351 sp->done(ha, sp, cp->result);
2352 }
2353 }
2354
2355 /**
2356 * qla2x00_error_entry() - Process an error entry.
2357 * @ha: SCSI driver HA context
2358 * @pkt: Entry pointer
2359 */
2360 static void
2361 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2362 {
2363 srb_t *sp;
2364 struct qla_hw_data *ha = vha->hw;
2365 const char func[] = "ERROR-IOCB";
2366 uint16_t que = MSW(pkt->handle);
2367 struct req_que *req = NULL;
2368 int res = DID_ERROR << 16;
2369
2370 ql_dbg(ql_dbg_async, vha, 0x502a,
2371 "type of error status in response: 0x%x\n", pkt->entry_status);
2372
2373 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2374 goto fatal;
2375
2376 req = ha->req_q_map[que];
2377
2378 if (pkt->entry_status & RF_BUSY)
2379 res = DID_BUS_BUSY << 16;
2380
2381 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2382 if (sp) {
2383 sp->done(ha, sp, res);
2384 return;
2385 }
2386 fatal:
2387 ql_log(ql_log_warn, vha, 0x5030,
2388 "Error entry - invalid handle/queue.\n");
2389
2390 if (IS_P3P_TYPE(ha))
2391 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2392 else
2393 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2394 qla2xxx_wake_dpc(vha);
2395 }
2396
2397 /**
2398 * qla24xx_mbx_completion() - Process mailbox command completions.
2399 * @ha: SCSI driver HA context
2400 * @mb0: Mailbox0 register
2401 */
2402 static void
2403 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2404 {
2405 uint16_t cnt;
2406 uint32_t mboxes;
2407 uint16_t __iomem *wptr;
2408 struct qla_hw_data *ha = vha->hw;
2409 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2410
2411 /* Read all mbox registers? */
2412 mboxes = (1 << ha->mbx_count) - 1;
2413 if (!ha->mcp)
2414 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2415 else
2416 mboxes = ha->mcp->in_mb;
2417
2418 /* Load return mailbox registers. */
2419 ha->flags.mbox_int = 1;
2420 ha->mailbox_out[0] = mb0;
2421 mboxes >>= 1;
2422 wptr = (uint16_t __iomem *)&reg->mailbox1;
2423
2424 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2425 if (mboxes & BIT_0)
2426 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2427
2428 mboxes >>= 1;
2429 wptr++;
2430 }
2431 }
2432
2433 static void
2434 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2435 struct abort_entry_24xx *pkt)
2436 {
2437 const char func[] = "ABT_IOCB";
2438 srb_t *sp;
2439 struct srb_iocb *abt;
2440
2441 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2442 if (!sp)
2443 return;
2444
2445 abt = &sp->u.iocb_cmd;
2446 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2447 sp->done(vha, sp, 0);
2448 }
2449
2450 /**
2451 * qla24xx_process_response_queue() - Process response queue entries.
2452 * @ha: SCSI driver HA context
2453 */
2454 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2455 struct rsp_que *rsp)
2456 {
2457 struct sts_entry_24xx *pkt;
2458 struct qla_hw_data *ha = vha->hw;
2459
2460 if (!vha->flags.online)
2461 return;
2462
2463 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2464 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2465
2466 rsp->ring_index++;
2467 if (rsp->ring_index == rsp->length) {
2468 rsp->ring_index = 0;
2469 rsp->ring_ptr = rsp->ring;
2470 } else {
2471 rsp->ring_ptr++;
2472 }
2473
2474 if (pkt->entry_status != 0) {
2475 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2476
2477 if (qlt_24xx_process_response_error(vha, pkt))
2478 goto process_err;
2479
2480 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2481 wmb();
2482 continue;
2483 }
2484 process_err:
2485
2486 switch (pkt->entry_type) {
2487 case STATUS_TYPE:
2488 qla2x00_status_entry(vha, rsp, pkt);
2489 break;
2490 case STATUS_CONT_TYPE:
2491 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2492 break;
2493 case VP_RPT_ID_IOCB_TYPE:
2494 qla24xx_report_id_acquisition(vha,
2495 (struct vp_rpt_id_entry_24xx *)pkt);
2496 break;
2497 case LOGINOUT_PORT_IOCB_TYPE:
2498 qla24xx_logio_entry(vha, rsp->req,
2499 (struct logio_entry_24xx *)pkt);
2500 break;
2501 case CT_IOCB_TYPE:
2502 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2503 break;
2504 case ELS_IOCB_TYPE:
2505 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2506 break;
2507 case ABTS_RECV_24XX:
2508 /* ensure that the ATIO queue is empty */
2509 qlt_24xx_process_atio_queue(vha);
2510 case ABTS_RESP_24XX:
2511 case CTIO_TYPE7:
2512 case NOTIFY_ACK_TYPE:
2513 case CTIO_CRC2:
2514 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2515 break;
2516 case MARKER_TYPE:
2517 /* Do nothing in this case, this check is to prevent it
2518 * from falling into default case
2519 */
2520 break;
2521 case ABORT_IOCB_TYPE:
2522 qla24xx_abort_iocb_entry(vha, rsp->req,
2523 (struct abort_entry_24xx *)pkt);
2524 break;
2525 default:
2526 /* Type Not Supported. */
2527 ql_dbg(ql_dbg_async, vha, 0x5042,
2528 "Received unknown response pkt type %x "
2529 "entry status=%x.\n",
2530 pkt->entry_type, pkt->entry_status);
2531 break;
2532 }
2533 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2534 wmb();
2535 }
2536
2537 /* Adjust ring index */
2538 if (IS_P3P_TYPE(ha)) {
2539 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2540 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2541 } else
2542 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2543 }
2544
2545 static void
2546 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2547 {
2548 int rval;
2549 uint32_t cnt;
2550 struct qla_hw_data *ha = vha->hw;
2551 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2552
2553 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2554 !IS_QLA27XX(ha))
2555 return;
2556
2557 rval = QLA_SUCCESS;
2558 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2559 RD_REG_DWORD(&reg->iobase_addr);
2560 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2561 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2562 rval == QLA_SUCCESS; cnt--) {
2563 if (cnt) {
2564 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2565 udelay(10);
2566 } else
2567 rval = QLA_FUNCTION_TIMEOUT;
2568 }
2569 if (rval == QLA_SUCCESS)
2570 goto next_test;
2571
2572 rval = QLA_SUCCESS;
2573 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2574 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2575 rval == QLA_SUCCESS; cnt--) {
2576 if (cnt) {
2577 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2578 udelay(10);
2579 } else
2580 rval = QLA_FUNCTION_TIMEOUT;
2581 }
2582 if (rval != QLA_SUCCESS)
2583 goto done;
2584
2585 next_test:
2586 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2587 ql_log(ql_log_info, vha, 0x504c,
2588 "Additional code -- 0x55AA.\n");
2589
2590 done:
2591 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2592 RD_REG_DWORD(&reg->iobase_window);
2593 }
2594
2595 /**
2596 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2597 * @irq:
2598 * @dev_id: SCSI driver HA context
2599 *
2600 * Called by system whenever the host adapter generates an interrupt.
2601 *
2602 * Returns handled flag.
2603 */
2604 irqreturn_t
2605 qla24xx_intr_handler(int irq, void *dev_id)
2606 {
2607 scsi_qla_host_t *vha;
2608 struct qla_hw_data *ha;
2609 struct device_reg_24xx __iomem *reg;
2610 int status;
2611 unsigned long iter;
2612 uint32_t stat;
2613 uint32_t hccr;
2614 uint16_t mb[8];
2615 struct rsp_que *rsp;
2616 unsigned long flags;
2617
2618 rsp = (struct rsp_que *) dev_id;
2619 if (!rsp) {
2620 ql_log(ql_log_info, NULL, 0x5059,
2621 "%s: NULL response queue pointer.\n", __func__);
2622 return IRQ_NONE;
2623 }
2624
2625 ha = rsp->hw;
2626 reg = &ha->iobase->isp24;
2627 status = 0;
2628
2629 if (unlikely(pci_channel_offline(ha->pdev)))
2630 return IRQ_HANDLED;
2631
2632 spin_lock_irqsave(&ha->hardware_lock, flags);
2633 vha = pci_get_drvdata(ha->pdev);
2634 for (iter = 50; iter--; ) {
2635 stat = RD_REG_DWORD(&reg->host_status);
2636 if (qla2x00_check_reg_for_disconnect(vha, stat))
2637 break;
2638 if (stat & HSRX_RISC_PAUSED) {
2639 if (unlikely(pci_channel_offline(ha->pdev)))
2640 break;
2641
2642 hccr = RD_REG_DWORD(&reg->hccr);
2643
2644 ql_log(ql_log_warn, vha, 0x504b,
2645 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2646 hccr);
2647
2648 qla2xxx_check_risc_status(vha);
2649
2650 ha->isp_ops->fw_dump(vha, 1);
2651 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2652 break;
2653 } else if ((stat & HSRX_RISC_INT) == 0)
2654 break;
2655
2656 switch (stat & 0xff) {
2657 case INTR_ROM_MB_SUCCESS:
2658 case INTR_ROM_MB_FAILED:
2659 case INTR_MB_SUCCESS:
2660 case INTR_MB_FAILED:
2661 qla24xx_mbx_completion(vha, MSW(stat));
2662 status |= MBX_INTERRUPT;
2663
2664 break;
2665 case INTR_ASYNC_EVENT:
2666 mb[0] = MSW(stat);
2667 mb[1] = RD_REG_WORD(&reg->mailbox1);
2668 mb[2] = RD_REG_WORD(&reg->mailbox2);
2669 mb[3] = RD_REG_WORD(&reg->mailbox3);
2670 qla2x00_async_event(vha, rsp, mb);
2671 break;
2672 case INTR_RSP_QUE_UPDATE:
2673 case INTR_RSP_QUE_UPDATE_83XX:
2674 qla24xx_process_response_queue(vha, rsp);
2675 break;
2676 case INTR_ATIO_QUE_UPDATE:
2677 qlt_24xx_process_atio_queue(vha);
2678 break;
2679 case INTR_ATIO_RSP_QUE_UPDATE:
2680 qlt_24xx_process_atio_queue(vha);
2681 qla24xx_process_response_queue(vha, rsp);
2682 break;
2683 default:
2684 ql_dbg(ql_dbg_async, vha, 0x504f,
2685 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2686 break;
2687 }
2688 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2689 RD_REG_DWORD_RELAXED(&reg->hccr);
2690 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2691 ndelay(3500);
2692 }
2693 qla2x00_handle_mbx_completion(ha, status);
2694 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2695
2696 return IRQ_HANDLED;
2697 }
2698
2699 static irqreturn_t
2700 qla24xx_msix_rsp_q(int irq, void *dev_id)
2701 {
2702 struct qla_hw_data *ha;
2703 struct rsp_que *rsp;
2704 struct device_reg_24xx __iomem *reg;
2705 struct scsi_qla_host *vha;
2706 unsigned long flags;
2707 uint32_t stat = 0;
2708
2709 rsp = (struct rsp_que *) dev_id;
2710 if (!rsp) {
2711 ql_log(ql_log_info, NULL, 0x505a,
2712 "%s: NULL response queue pointer.\n", __func__);
2713 return IRQ_NONE;
2714 }
2715 ha = rsp->hw;
2716 reg = &ha->iobase->isp24;
2717
2718 spin_lock_irqsave(&ha->hardware_lock, flags);
2719
2720 vha = pci_get_drvdata(ha->pdev);
2721 /*
2722 * Use host_status register to check to PCI disconnection before we
2723 * we process the response queue.
2724 */
2725 stat = RD_REG_DWORD(&reg->host_status);
2726 if (qla2x00_check_reg_for_disconnect(vha, stat))
2727 goto out;
2728 qla24xx_process_response_queue(vha, rsp);
2729 if (!ha->flags.disable_msix_handshake) {
2730 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2731 RD_REG_DWORD_RELAXED(&reg->hccr);
2732 }
2733 out:
2734 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2735
2736 return IRQ_HANDLED;
2737 }
2738
2739 static irqreturn_t
2740 qla25xx_msix_rsp_q(int irq, void *dev_id)
2741 {
2742 struct qla_hw_data *ha;
2743 scsi_qla_host_t *vha;
2744 struct rsp_que *rsp;
2745 struct device_reg_24xx __iomem *reg;
2746 unsigned long flags;
2747 uint32_t hccr = 0;
2748
2749 rsp = (struct rsp_que *) dev_id;
2750 if (!rsp) {
2751 ql_log(ql_log_info, NULL, 0x505b,
2752 "%s: NULL response queue pointer.\n", __func__);
2753 return IRQ_NONE;
2754 }
2755 ha = rsp->hw;
2756 vha = pci_get_drvdata(ha->pdev);
2757
2758 /* Clear the interrupt, if enabled, for this response queue */
2759 if (!ha->flags.disable_msix_handshake) {
2760 reg = &ha->iobase->isp24;
2761 spin_lock_irqsave(&ha->hardware_lock, flags);
2762 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2763 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2764 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2765 }
2766 if (qla2x00_check_reg_for_disconnect(vha, hccr))
2767 goto out;
2768 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2769
2770 out:
2771 return IRQ_HANDLED;
2772 }
2773
2774 static irqreturn_t
2775 qla24xx_msix_default(int irq, void *dev_id)
2776 {
2777 scsi_qla_host_t *vha;
2778 struct qla_hw_data *ha;
2779 struct rsp_que *rsp;
2780 struct device_reg_24xx __iomem *reg;
2781 int status;
2782 uint32_t stat;
2783 uint32_t hccr;
2784 uint16_t mb[8];
2785 unsigned long flags;
2786
2787 rsp = (struct rsp_que *) dev_id;
2788 if (!rsp) {
2789 ql_log(ql_log_info, NULL, 0x505c,
2790 "%s: NULL response queue pointer.\n", __func__);
2791 return IRQ_NONE;
2792 }
2793 ha = rsp->hw;
2794 reg = &ha->iobase->isp24;
2795 status = 0;
2796
2797 spin_lock_irqsave(&ha->hardware_lock, flags);
2798 vha = pci_get_drvdata(ha->pdev);
2799 do {
2800 stat = RD_REG_DWORD(&reg->host_status);
2801 if (qla2x00_check_reg_for_disconnect(vha, stat))
2802 break;
2803 if (stat & HSRX_RISC_PAUSED) {
2804 if (unlikely(pci_channel_offline(ha->pdev)))
2805 break;
2806
2807 hccr = RD_REG_DWORD(&reg->hccr);
2808
2809 ql_log(ql_log_info, vha, 0x5050,
2810 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2811 hccr);
2812
2813 qla2xxx_check_risc_status(vha);
2814
2815 ha->isp_ops->fw_dump(vha, 1);
2816 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2817 break;
2818 } else if ((stat & HSRX_RISC_INT) == 0)
2819 break;
2820
2821 switch (stat & 0xff) {
2822 case INTR_ROM_MB_SUCCESS:
2823 case INTR_ROM_MB_FAILED:
2824 case INTR_MB_SUCCESS:
2825 case INTR_MB_FAILED:
2826 qla24xx_mbx_completion(vha, MSW(stat));
2827 status |= MBX_INTERRUPT;
2828
2829 break;
2830 case INTR_ASYNC_EVENT:
2831 mb[0] = MSW(stat);
2832 mb[1] = RD_REG_WORD(&reg->mailbox1);
2833 mb[2] = RD_REG_WORD(&reg->mailbox2);
2834 mb[3] = RD_REG_WORD(&reg->mailbox3);
2835 qla2x00_async_event(vha, rsp, mb);
2836 break;
2837 case INTR_RSP_QUE_UPDATE:
2838 case INTR_RSP_QUE_UPDATE_83XX:
2839 qla24xx_process_response_queue(vha, rsp);
2840 break;
2841 case INTR_ATIO_QUE_UPDATE:
2842 qlt_24xx_process_atio_queue(vha);
2843 break;
2844 case INTR_ATIO_RSP_QUE_UPDATE:
2845 qlt_24xx_process_atio_queue(vha);
2846 qla24xx_process_response_queue(vha, rsp);
2847 break;
2848 default:
2849 ql_dbg(ql_dbg_async, vha, 0x5051,
2850 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2851 break;
2852 }
2853 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2854 } while (0);
2855 qla2x00_handle_mbx_completion(ha, status);
2856 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2857
2858 return IRQ_HANDLED;
2859 }
2860
2861 /* Interrupt handling helpers. */
2862
2863 struct qla_init_msix_entry {
2864 const char *name;
2865 irq_handler_t handler;
2866 };
2867
2868 static struct qla_init_msix_entry msix_entries[3] = {
2869 { "qla2xxx (default)", qla24xx_msix_default },
2870 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2871 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2872 };
2873
2874 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2875 { "qla2xxx (default)", qla82xx_msix_default },
2876 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2877 };
2878
2879 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2880 { "qla2xxx (default)", qla24xx_msix_default },
2881 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2882 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2883 };
2884
2885 static void
2886 qla24xx_disable_msix(struct qla_hw_data *ha)
2887 {
2888 int i;
2889 struct qla_msix_entry *qentry;
2890 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2891
2892 for (i = 0; i < ha->msix_count; i++) {
2893 qentry = &ha->msix_entries[i];
2894 if (qentry->have_irq)
2895 free_irq(qentry->vector, qentry->rsp);
2896 }
2897 pci_disable_msix(ha->pdev);
2898 kfree(ha->msix_entries);
2899 ha->msix_entries = NULL;
2900 ha->flags.msix_enabled = 0;
2901 ql_dbg(ql_dbg_init, vha, 0x0042,
2902 "Disabled the MSI.\n");
2903 }
2904
2905 static int
2906 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2907 {
2908 #define MIN_MSIX_COUNT 2
2909 #define ATIO_VECTOR 2
2910 int i, ret;
2911 struct msix_entry *entries;
2912 struct qla_msix_entry *qentry;
2913 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2914
2915 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2916 GFP_KERNEL);
2917 if (!entries) {
2918 ql_log(ql_log_warn, vha, 0x00bc,
2919 "Failed to allocate memory for msix_entry.\n");
2920 return -ENOMEM;
2921 }
2922
2923 for (i = 0; i < ha->msix_count; i++)
2924 entries[i].entry = i;
2925
2926 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2927 if (ret) {
2928 if (ret < MIN_MSIX_COUNT)
2929 goto msix_failed;
2930
2931 ql_log(ql_log_warn, vha, 0x00c6,
2932 "MSI-X: Failed to enable support "
2933 "-- %d/%d\n Retry with %d vectors.\n",
2934 ha->msix_count, ret, ret);
2935 ha->msix_count = ret;
2936 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2937 if (ret) {
2938 msix_failed:
2939 ql_log(ql_log_fatal, vha, 0x00c7,
2940 "MSI-X: Failed to enable support, "
2941 "giving up -- %d/%d.\n",
2942 ha->msix_count, ret);
2943 goto msix_out;
2944 }
2945 ha->max_rsp_queues = ha->msix_count - 1;
2946 }
2947 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2948 ha->msix_count, GFP_KERNEL);
2949 if (!ha->msix_entries) {
2950 ql_log(ql_log_fatal, vha, 0x00c8,
2951 "Failed to allocate memory for ha->msix_entries.\n");
2952 ret = -ENOMEM;
2953 goto msix_out;
2954 }
2955 ha->flags.msix_enabled = 1;
2956
2957 for (i = 0; i < ha->msix_count; i++) {
2958 qentry = &ha->msix_entries[i];
2959 qentry->vector = entries[i].vector;
2960 qentry->entry = entries[i].entry;
2961 qentry->have_irq = 0;
2962 qentry->rsp = NULL;
2963 }
2964
2965 /* Enable MSI-X vectors for the base queue */
2966 for (i = 0; i < 2; i++) {
2967 qentry = &ha->msix_entries[i];
2968 if (IS_P3P_TYPE(ha))
2969 ret = request_irq(qentry->vector,
2970 qla82xx_msix_entries[i].handler,
2971 0, qla82xx_msix_entries[i].name, rsp);
2972 else
2973 ret = request_irq(qentry->vector,
2974 msix_entries[i].handler,
2975 0, msix_entries[i].name, rsp);
2976 if (ret)
2977 goto msix_register_fail;
2978 qentry->have_irq = 1;
2979 qentry->rsp = rsp;
2980 rsp->msix = qentry;
2981 }
2982
2983 /*
2984 * If target mode is enable, also request the vector for the ATIO
2985 * queue.
2986 */
2987 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
2988 qentry = &ha->msix_entries[ATIO_VECTOR];
2989 ret = request_irq(qentry->vector,
2990 qla83xx_msix_entries[ATIO_VECTOR].handler,
2991 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
2992 qentry->have_irq = 1;
2993 qentry->rsp = rsp;
2994 rsp->msix = qentry;
2995 }
2996
2997 msix_register_fail:
2998 if (ret) {
2999 ql_log(ql_log_fatal, vha, 0x00cb,
3000 "MSI-X: unable to register handler -- %x/%d.\n",
3001 qentry->vector, ret);
3002 qla24xx_disable_msix(ha);
3003 ha->mqenable = 0;
3004 goto msix_out;
3005 }
3006
3007 /* Enable MSI-X vector for response queue update for queue 0 */
3008 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3009 if (ha->msixbase && ha->mqiobase &&
3010 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3011 ha->mqenable = 1;
3012 } else
3013 if (ha->mqiobase
3014 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3015 ha->mqenable = 1;
3016 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3017 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3018 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3019 ql_dbg(ql_dbg_init, vha, 0x0055,
3020 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3021 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3022
3023 msix_out:
3024 kfree(entries);
3025 return ret;
3026 }
3027
3028 int
3029 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3030 {
3031 int ret = QLA_FUNCTION_FAILED;
3032 device_reg_t *reg = ha->iobase;
3033 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3034
3035 /* If possible, enable MSI-X. */
3036 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3037 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3038 !IS_QLA27XX(ha))
3039 goto skip_msi;
3040
3041 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3042 (ha->pdev->subsystem_device == 0x7040 ||
3043 ha->pdev->subsystem_device == 0x7041 ||
3044 ha->pdev->subsystem_device == 0x1705)) {
3045 ql_log(ql_log_warn, vha, 0x0034,
3046 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3047 ha->pdev->subsystem_vendor,
3048 ha->pdev->subsystem_device);
3049 goto skip_msi;
3050 }
3051
3052 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3053 ql_log(ql_log_warn, vha, 0x0035,
3054 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3055 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3056 goto skip_msix;
3057 }
3058
3059 ret = qla24xx_enable_msix(ha, rsp);
3060 if (!ret) {
3061 ql_dbg(ql_dbg_init, vha, 0x0036,
3062 "MSI-X: Enabled (0x%X, 0x%X).\n",
3063 ha->chip_revision, ha->fw_attributes);
3064 goto clear_risc_ints;
3065 }
3066
3067 skip_msix:
3068
3069 ql_log(ql_log_info, vha, 0x0037,
3070 "Falling back-to MSI mode -%d.\n", ret);
3071
3072 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3073 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3074 !IS_QLA27XX(ha))
3075 goto skip_msi;
3076
3077 ret = pci_enable_msi(ha->pdev);
3078 if (!ret) {
3079 ql_dbg(ql_dbg_init, vha, 0x0038,
3080 "MSI: Enabled.\n");
3081 ha->flags.msi_enabled = 1;
3082 } else
3083 ql_log(ql_log_warn, vha, 0x0039,
3084 "Falling back-to INTa mode -- %d.\n", ret);
3085 skip_msi:
3086
3087 /* Skip INTx on ISP82xx. */
3088 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3089 return QLA_FUNCTION_FAILED;
3090
3091 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3092 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3093 QLA2XXX_DRIVER_NAME, rsp);
3094 if (ret) {
3095 ql_log(ql_log_warn, vha, 0x003a,
3096 "Failed to reserve interrupt %d already in use.\n",
3097 ha->pdev->irq);
3098 goto fail;
3099 } else if (!ha->flags.msi_enabled) {
3100 ql_dbg(ql_dbg_init, vha, 0x0125,
3101 "INTa mode: Enabled.\n");
3102 ha->flags.mr_intr_valid = 1;
3103 }
3104
3105 clear_risc_ints:
3106
3107 spin_lock_irq(&ha->hardware_lock);
3108 if (!IS_FWI2_CAPABLE(ha))
3109 WRT_REG_WORD(&reg->isp.semaphore, 0);
3110 spin_unlock_irq(&ha->hardware_lock);
3111
3112 fail:
3113 return ret;
3114 }
3115
3116 void
3117 qla2x00_free_irqs(scsi_qla_host_t *vha)
3118 {
3119 struct qla_hw_data *ha = vha->hw;
3120 struct rsp_que *rsp;
3121
3122 /*
3123 * We need to check that ha->rsp_q_map is valid in case we are called
3124 * from a probe failure context.
3125 */
3126 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3127 return;
3128 rsp = ha->rsp_q_map[0];
3129
3130 if (ha->flags.msix_enabled)
3131 qla24xx_disable_msix(ha);
3132 else if (ha->flags.msi_enabled) {
3133 free_irq(ha->pdev->irq, rsp);
3134 pci_disable_msi(ha->pdev);
3135 } else
3136 free_irq(ha->pdev->irq, rsp);
3137 }
3138
3139
3140 int qla25xx_request_irq(struct rsp_que *rsp)
3141 {
3142 struct qla_hw_data *ha = rsp->hw;
3143 struct qla_init_msix_entry *intr = &msix_entries[2];
3144 struct qla_msix_entry *msix = rsp->msix;
3145 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3146 int ret;
3147
3148 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3149 if (ret) {
3150 ql_log(ql_log_fatal, vha, 0x00e6,
3151 "MSI-X: Unable to register handler -- %x/%d.\n",
3152 msix->vector, ret);
3153 return ret;
3154 }
3155 msix->have_irq = 1;
3156 msix->rsp = rsp;
3157 return ret;
3158 }
Linux kernel - Deliverables
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