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mfd: wm8350-i2c: Make sure the i2c regmap functions are compiled
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
blobfc4563b1c1d8207df0c395110b89b74b124a9123
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include "qla_target.h"
9
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <scsi/scsi_tcq.h>
13 #include <scsi/scsi_bsg_fc.h>
14 #include <scsi/scsi_eh.h>
15
16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
20 sts_entry_t *);
21
22 /**
23 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
24 * @irq:
25 * @dev_id: SCSI driver HA context
26 *
27 * Called by system whenever the host adapter generates an interrupt.
28 *
29 * Returns handled flag.
30 */
31 irqreturn_t
32 qla2100_intr_handler(int irq, void *dev_id)
33 {
34 scsi_qla_host_t *vha;
35 struct qla_hw_data *ha;
36 struct device_reg_2xxx __iomem *reg;
37 int status;
38 unsigned long iter;
39 uint16_t hccr;
40 uint16_t mb[4];
41 struct rsp_que *rsp;
42 unsigned long flags;
43
44 rsp = (struct rsp_que *) dev_id;
45 if (!rsp) {
46 ql_log(ql_log_info, NULL, 0x505d,
47 "%s: NULL response queue pointer.\n", __func__);
48 return (IRQ_NONE);
49 }
50
51 ha = rsp->hw;
52 reg = &ha->iobase->isp;
53 status = 0;
54
55 spin_lock_irqsave(&ha->hardware_lock, flags);
56 vha = pci_get_drvdata(ha->pdev);
57 for (iter = 50; iter--; ) {
58 hccr = RD_REG_WORD(&reg->hccr);
59 if (hccr & HCCR_RISC_PAUSE) {
60 if (pci_channel_offline(ha->pdev))
61 break;
62
63 /*
64 * Issue a "HARD" reset in order for the RISC interrupt
65 * bit to be cleared. Schedule a big hammer to get
66 * out of the RISC PAUSED state.
67 */
68 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
69 RD_REG_WORD(&reg->hccr);
70
71 ha->isp_ops->fw_dump(vha, 1);
72 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
73 break;
74 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
75 break;
76
77 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
78 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
79 RD_REG_WORD(&reg->hccr);
80
81 /* Get mailbox data. */
82 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
83 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
84 qla2x00_mbx_completion(vha, mb[0]);
85 status |= MBX_INTERRUPT;
86 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
87 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
88 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
89 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
90 qla2x00_async_event(vha, rsp, mb);
91 } else {
92 /*EMPTY*/
93 ql_dbg(ql_dbg_async, vha, 0x5025,
94 "Unrecognized interrupt type (%d).\n",
95 mb[0]);
96 }
97 /* Release mailbox registers. */
98 WRT_REG_WORD(&reg->semaphore, 0);
99 RD_REG_WORD(&reg->semaphore);
100 } else {
101 qla2x00_process_response_queue(rsp);
102
103 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
104 RD_REG_WORD(&reg->hccr);
105 }
106 }
107 qla2x00_handle_mbx_completion(ha, status);
108 spin_unlock_irqrestore(&ha->hardware_lock, flags);
109
110 return (IRQ_HANDLED);
111 }
112
113 /**
114 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
115 * @irq:
116 * @dev_id: SCSI driver HA context
117 *
118 * Called by system whenever the host adapter generates an interrupt.
119 *
120 * Returns handled flag.
121 */
122 irqreturn_t
123 qla2300_intr_handler(int irq, void *dev_id)
124 {
125 scsi_qla_host_t *vha;
126 struct device_reg_2xxx __iomem *reg;
127 int status;
128 unsigned long iter;
129 uint32_t stat;
130 uint16_t hccr;
131 uint16_t mb[4];
132 struct rsp_que *rsp;
133 struct qla_hw_data *ha;
134 unsigned long flags;
135
136 rsp = (struct rsp_que *) dev_id;
137 if (!rsp) {
138 ql_log(ql_log_info, NULL, 0x5058,
139 "%s: NULL response queue pointer.\n", __func__);
140 return (IRQ_NONE);
141 }
142
143 ha = rsp->hw;
144 reg = &ha->iobase->isp;
145 status = 0;
146
147 spin_lock_irqsave(&ha->hardware_lock, flags);
148 vha = pci_get_drvdata(ha->pdev);
149 for (iter = 50; iter--; ) {
150 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
151 if (stat & HSR_RISC_PAUSED) {
152 if (unlikely(pci_channel_offline(ha->pdev)))
153 break;
154
155 hccr = RD_REG_WORD(&reg->hccr);
156 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
157 ql_log(ql_log_warn, vha, 0x5026,
158 "Parity error -- HCCR=%x, Dumping "
159 "firmware.\n", hccr);
160 else
161 ql_log(ql_log_warn, vha, 0x5027,
162 "RISC paused -- HCCR=%x, Dumping "
163 "firmware.\n", hccr);
164
165 /*
166 * Issue a "HARD" reset in order for the RISC
167 * interrupt bit to be cleared. Schedule a big
168 * hammer to get out of the RISC PAUSED state.
169 */
170 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
171 RD_REG_WORD(&reg->hccr);
172
173 ha->isp_ops->fw_dump(vha, 1);
174 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
175 break;
176 } else if ((stat & HSR_RISC_INT) == 0)
177 break;
178
179 switch (stat & 0xff) {
180 case 0x1:
181 case 0x2:
182 case 0x10:
183 case 0x11:
184 qla2x00_mbx_completion(vha, MSW(stat));
185 status |= MBX_INTERRUPT;
186
187 /* Release mailbox registers. */
188 WRT_REG_WORD(&reg->semaphore, 0);
189 break;
190 case 0x12:
191 mb[0] = MSW(stat);
192 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
193 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
194 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
195 qla2x00_async_event(vha, rsp, mb);
196 break;
197 case 0x13:
198 qla2x00_process_response_queue(rsp);
199 break;
200 case 0x15:
201 mb[0] = MBA_CMPLT_1_16BIT;
202 mb[1] = MSW(stat);
203 qla2x00_async_event(vha, rsp, mb);
204 break;
205 case 0x16:
206 mb[0] = MBA_SCSI_COMPLETION;
207 mb[1] = MSW(stat);
208 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
209 qla2x00_async_event(vha, rsp, mb);
210 break;
211 default:
212 ql_dbg(ql_dbg_async, vha, 0x5028,
213 "Unrecognized interrupt type (%d).\n", stat & 0xff);
214 break;
215 }
216 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
217 RD_REG_WORD_RELAXED(&reg->hccr);
218 }
219 qla2x00_handle_mbx_completion(ha, status);
220 spin_unlock_irqrestore(&ha->hardware_lock, flags);
221
222 return (IRQ_HANDLED);
223 }
224
225 /**
226 * qla2x00_mbx_completion() - Process mailbox command completions.
227 * @ha: SCSI driver HA context
228 * @mb0: Mailbox0 register
229 */
230 static void
231 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
232 {
233 uint16_t cnt;
234 uint32_t mboxes;
235 uint16_t __iomem *wptr;
236 struct qla_hw_data *ha = vha->hw;
237 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
238
239 /* Read all mbox registers? */
240 mboxes = (1 << ha->mbx_count) - 1;
241 if (!ha->mcp)
242 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
243 else
244 mboxes = ha->mcp->in_mb;
245
246 /* Load return mailbox registers. */
247 ha->flags.mbox_int = 1;
248 ha->mailbox_out[0] = mb0;
249 mboxes >>= 1;
250 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
251
252 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
253 if (IS_QLA2200(ha) && cnt == 8)
254 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
255 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
256 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
257 else if (mboxes & BIT_0)
258 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
259
260 wptr++;
261 mboxes >>= 1;
262 }
263 }
264
265 static void
266 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
267 {
268 static char *event[] =
269 { "Complete", "Request Notification", "Time Extension" };
270 int rval;
271 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
272 uint16_t __iomem *wptr;
273 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
274
275 /* Seed data -- mailbox1 -> mailbox7. */
276 wptr = (uint16_t __iomem *)&reg24->mailbox1;
277 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
278 mb[cnt] = RD_REG_WORD(wptr);
279
280 ql_dbg(ql_dbg_async, vha, 0x5021,
281 "Inter-Driver Communication %s -- "
282 "%04x %04x %04x %04x %04x %04x %04x.\n",
283 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
284 mb[4], mb[5], mb[6]);
285 switch (aen) {
286 /* Handle IDC Error completion case. */
287 case MBA_IDC_COMPLETE:
288 if (mb[1] >> 15) {
289 vha->hw->flags.idc_compl_status = 1;
290 if (vha->hw->notify_dcbx_comp)
291 complete(&vha->hw->dcbx_comp);
292 }
293 break;
294
295 case MBA_IDC_NOTIFY:
296 /* Acknowledgement needed? [Notify && non-zero timeout]. */
297 timeout = (descr >> 8) & 0xf;
298 ql_dbg(ql_dbg_async, vha, 0x5022,
299 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
300 vha->host_no, event[aen & 0xff], timeout);
301
302 if (!timeout)
303 return;
304 rval = qla2x00_post_idc_ack_work(vha, mb);
305 if (rval != QLA_SUCCESS)
306 ql_log(ql_log_warn, vha, 0x5023,
307 "IDC failed to post ACK.\n");
308 break;
309 case MBA_IDC_TIME_EXT:
310 vha->hw->idc_extend_tmo = descr;
311 ql_dbg(ql_dbg_async, vha, 0x5087,
312 "%lu Inter-Driver Communication %s -- "
313 "Extend timeout by=%d.\n",
314 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
315 break;
316 }
317 }
318
319 #define LS_UNKNOWN 2
320 const char *
321 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
322 {
323 static const char * const link_speeds[] = {
324 "1", "2", "?", "4", "8", "16", "10"
325 };
326
327 if (IS_QLA2100(ha) || IS_QLA2200(ha))
328 return link_speeds[0];
329 else if (speed == 0x13)
330 return link_speeds[6];
331 else if (speed < 6)
332 return link_speeds[speed];
333 else
334 return link_speeds[LS_UNKNOWN];
335 }
336
337 static void
338 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
339 {
340 struct qla_hw_data *ha = vha->hw;
341
342 /*
343 * 8200 AEN Interpretation:
344 * mb[0] = AEN code
345 * mb[1] = AEN Reason code
346 * mb[2] = LSW of Peg-Halt Status-1 Register
347 * mb[6] = MSW of Peg-Halt Status-1 Register
348 * mb[3] = LSW of Peg-Halt Status-2 register
349 * mb[7] = MSW of Peg-Halt Status-2 register
350 * mb[4] = IDC Device-State Register value
351 * mb[5] = IDC Driver-Presence Register value
352 */
353 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
354 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
355 mb[0], mb[1], mb[2], mb[6]);
356 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
357 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
358 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
359
360 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
361 IDC_HEARTBEAT_FAILURE)) {
362 ha->flags.nic_core_hung = 1;
363 ql_log(ql_log_warn, vha, 0x5060,
364 "83XX: F/W Error Reported: Check if reset required.\n");
365
366 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
367 uint32_t protocol_engine_id, fw_err_code, err_level;
368
369 /*
370 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
371 * - PEG-Halt Status-1 Register:
372 * (LSW = mb[2], MSW = mb[6])
373 * Bits 0-7 = protocol-engine ID
374 * Bits 8-28 = f/w error code
375 * Bits 29-31 = Error-level
376 * Error-level 0x1 = Non-Fatal error
377 * Error-level 0x2 = Recoverable Fatal error
378 * Error-level 0x4 = UnRecoverable Fatal error
379 * - PEG-Halt Status-2 Register:
380 * (LSW = mb[3], MSW = mb[7])
381 */
382 protocol_engine_id = (mb[2] & 0xff);
383 fw_err_code = (((mb[2] & 0xff00) >> 8) |
384 ((mb[6] & 0x1fff) << 8));
385 err_level = ((mb[6] & 0xe000) >> 13);
386 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
387 "Register: protocol_engine_id=0x%x "
388 "fw_err_code=0x%x err_level=0x%x.\n",
389 protocol_engine_id, fw_err_code, err_level);
390 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
391 "Register: 0x%x%x.\n", mb[7], mb[3]);
392 if (err_level == ERR_LEVEL_NON_FATAL) {
393 ql_log(ql_log_warn, vha, 0x5063,
394 "Not a fatal error, f/w has recovered "
395 "iteself.\n");
396 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
397 ql_log(ql_log_fatal, vha, 0x5064,
398 "Recoverable Fatal error: Chip reset "
399 "required.\n");
400 qla83xx_schedule_work(vha,
401 QLA83XX_NIC_CORE_RESET);
402 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
403 ql_log(ql_log_fatal, vha, 0x5065,
404 "Unrecoverable Fatal error: Set FAILED "
405 "state, reboot required.\n");
406 qla83xx_schedule_work(vha,
407 QLA83XX_NIC_CORE_UNRECOVERABLE);
408 }
409 }
410
411 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
412 uint16_t peg_fw_state, nw_interface_link_up;
413 uint16_t nw_interface_signal_detect, sfp_status;
414 uint16_t htbt_counter, htbt_monitor_enable;
415 uint16_t sfp_additonal_info, sfp_multirate;
416 uint16_t sfp_tx_fault, link_speed, dcbx_status;
417
418 /*
419 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
420 * - PEG-to-FC Status Register:
421 * (LSW = mb[2], MSW = mb[6])
422 * Bits 0-7 = Peg-Firmware state
423 * Bit 8 = N/W Interface Link-up
424 * Bit 9 = N/W Interface signal detected
425 * Bits 10-11 = SFP Status
426 * SFP Status 0x0 = SFP+ transceiver not expected
427 * SFP Status 0x1 = SFP+ transceiver not present
428 * SFP Status 0x2 = SFP+ transceiver invalid
429 * SFP Status 0x3 = SFP+ transceiver present and
430 * valid
431 * Bits 12-14 = Heartbeat Counter
432 * Bit 15 = Heartbeat Monitor Enable
433 * Bits 16-17 = SFP Additional Info
434 * SFP info 0x0 = Unregocnized transceiver for
435 * Ethernet
436 * SFP info 0x1 = SFP+ brand validation failed
437 * SFP info 0x2 = SFP+ speed validation failed
438 * SFP info 0x3 = SFP+ access error
439 * Bit 18 = SFP Multirate
440 * Bit 19 = SFP Tx Fault
441 * Bits 20-22 = Link Speed
442 * Bits 23-27 = Reserved
443 * Bits 28-30 = DCBX Status
444 * DCBX Status 0x0 = DCBX Disabled
445 * DCBX Status 0x1 = DCBX Enabled
446 * DCBX Status 0x2 = DCBX Exchange error
447 * Bit 31 = Reserved
448 */
449 peg_fw_state = (mb[2] & 0x00ff);
450 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
451 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
452 sfp_status = ((mb[2] & 0x0c00) >> 10);
453 htbt_counter = ((mb[2] & 0x7000) >> 12);
454 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
455 sfp_additonal_info = (mb[6] & 0x0003);
456 sfp_multirate = ((mb[6] & 0x0004) >> 2);
457 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
458 link_speed = ((mb[6] & 0x0070) >> 4);
459 dcbx_status = ((mb[6] & 0x7000) >> 12);
460
461 ql_log(ql_log_warn, vha, 0x5066,
462 "Peg-to-Fc Status Register:\n"
463 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
464 "nw_interface_signal_detect=0x%x"
465 "\nsfp_statis=0x%x.\n ", peg_fw_state,
466 nw_interface_link_up, nw_interface_signal_detect,
467 sfp_status);
468 ql_log(ql_log_warn, vha, 0x5067,
469 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
470 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
471 htbt_counter, htbt_monitor_enable,
472 sfp_additonal_info, sfp_multirate);
473 ql_log(ql_log_warn, vha, 0x5068,
474 "sfp_tx_fault=0x%x, link_state=0x%x, "
475 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
476 dcbx_status);
477
478 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
479 }
480
481 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
482 ql_log(ql_log_warn, vha, 0x5069,
483 "Heartbeat Failure encountered, chip reset "
484 "required.\n");
485
486 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
487 }
488 }
489
490 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
491 ql_log(ql_log_info, vha, 0x506a,
492 "IDC Device-State changed = 0x%x.\n", mb[4]);
493 if (ha->flags.nic_core_reset_owner)
494 return;
495 qla83xx_schedule_work(vha, MBA_IDC_AEN);
496 }
497 }
498
499 int
500 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
501 {
502 struct qla_hw_data *ha = vha->hw;
503 scsi_qla_host_t *vp;
504 uint32_t vp_did;
505 unsigned long flags;
506 int ret = 0;
507
508 if (!ha->num_vhosts)
509 return ret;
510
511 spin_lock_irqsave(&ha->vport_slock, flags);
512 list_for_each_entry(vp, &ha->vp_list, list) {
513 vp_did = vp->d_id.b24;
514 if (vp_did == rscn_entry) {
515 ret = 1;
516 break;
517 }
518 }
519 spin_unlock_irqrestore(&ha->vport_slock, flags);
520
521 return ret;
522 }
523
524 /**
525 * qla2x00_async_event() - Process aynchronous events.
526 * @ha: SCSI driver HA context
527 * @mb: Mailbox registers (0 - 3)
528 */
529 void
530 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
531 {
532 uint16_t handle_cnt;
533 uint16_t cnt, mbx;
534 uint32_t handles[5];
535 struct qla_hw_data *ha = vha->hw;
536 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
537 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
538 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
539 uint32_t rscn_entry, host_pid, tmp_pid;
540 unsigned long flags;
541 fc_port_t *fcport = NULL;
542
543 /* Setup to process RIO completion. */
544 handle_cnt = 0;
545 if (IS_CNA_CAPABLE(ha))
546 goto skip_rio;
547 switch (mb[0]) {
548 case MBA_SCSI_COMPLETION:
549 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
550 handle_cnt = 1;
551 break;
552 case MBA_CMPLT_1_16BIT:
553 handles[0] = mb[1];
554 handle_cnt = 1;
555 mb[0] = MBA_SCSI_COMPLETION;
556 break;
557 case MBA_CMPLT_2_16BIT:
558 handles[0] = mb[1];
559 handles[1] = mb[2];
560 handle_cnt = 2;
561 mb[0] = MBA_SCSI_COMPLETION;
562 break;
563 case MBA_CMPLT_3_16BIT:
564 handles[0] = mb[1];
565 handles[1] = mb[2];
566 handles[2] = mb[3];
567 handle_cnt = 3;
568 mb[0] = MBA_SCSI_COMPLETION;
569 break;
570 case MBA_CMPLT_4_16BIT:
571 handles[0] = mb[1];
572 handles[1] = mb[2];
573 handles[2] = mb[3];
574 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
575 handle_cnt = 4;
576 mb[0] = MBA_SCSI_COMPLETION;
577 break;
578 case MBA_CMPLT_5_16BIT:
579 handles[0] = mb[1];
580 handles[1] = mb[2];
581 handles[2] = mb[3];
582 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
583 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
584 handle_cnt = 5;
585 mb[0] = MBA_SCSI_COMPLETION;
586 break;
587 case MBA_CMPLT_2_32BIT:
588 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
589 handles[1] = le32_to_cpu(
590 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
591 RD_MAILBOX_REG(ha, reg, 6));
592 handle_cnt = 2;
593 mb[0] = MBA_SCSI_COMPLETION;
594 break;
595 default:
596 break;
597 }
598 skip_rio:
599 switch (mb[0]) {
600 case MBA_SCSI_COMPLETION: /* Fast Post */
601 if (!vha->flags.online)
602 break;
603
604 for (cnt = 0; cnt < handle_cnt; cnt++)
605 qla2x00_process_completed_request(vha, rsp->req,
606 handles[cnt]);
607 break;
608
609 case MBA_RESET: /* Reset */
610 ql_dbg(ql_dbg_async, vha, 0x5002,
611 "Asynchronous RESET.\n");
612
613 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
614 break;
615
616 case MBA_SYSTEM_ERR: /* System Error */
617 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha)) ?
618 RD_REG_WORD(&reg24->mailbox7) : 0;
619 ql_log(ql_log_warn, vha, 0x5003,
620 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
621 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
622
623 ha->isp_ops->fw_dump(vha, 1);
624
625 if (IS_FWI2_CAPABLE(ha)) {
626 if (mb[1] == 0 && mb[2] == 0) {
627 ql_log(ql_log_fatal, vha, 0x5004,
628 "Unrecoverable Hardware Error: adapter "
629 "marked OFFLINE!\n");
630 vha->flags.online = 0;
631 vha->device_flags |= DFLG_DEV_FAILED;
632 } else {
633 /* Check to see if MPI timeout occurred */
634 if ((mbx & MBX_3) && (ha->flags.port0))
635 set_bit(MPI_RESET_NEEDED,
636 &vha->dpc_flags);
637
638 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
639 }
640 } else if (mb[1] == 0) {
641 ql_log(ql_log_fatal, vha, 0x5005,
642 "Unrecoverable Hardware Error: adapter marked "
643 "OFFLINE!\n");
644 vha->flags.online = 0;
645 vha->device_flags |= DFLG_DEV_FAILED;
646 } else
647 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
648 break;
649
650 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
651 ql_log(ql_log_warn, vha, 0x5006,
652 "ISP Request Transfer Error (%x).\n", mb[1]);
653
654 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
655 break;
656
657 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
658 ql_log(ql_log_warn, vha, 0x5007,
659 "ISP Response Transfer Error.\n");
660
661 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
662 break;
663
664 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
665 ql_dbg(ql_dbg_async, vha, 0x5008,
666 "Asynchronous WAKEUP_THRES.\n");
667
668 break;
669 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
670 ql_dbg(ql_dbg_async, vha, 0x5009,
671 "LIP occurred (%x).\n", mb[1]);
672
673 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
674 atomic_set(&vha->loop_state, LOOP_DOWN);
675 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
676 qla2x00_mark_all_devices_lost(vha, 1);
677 }
678
679 if (vha->vp_idx) {
680 atomic_set(&vha->vp_state, VP_FAILED);
681 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
682 }
683
684 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
685 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
686
687 vha->flags.management_server_logged_in = 0;
688 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
689 break;
690
691 case MBA_LOOP_UP: /* Loop Up Event */
692 if (IS_QLA2100(ha) || IS_QLA2200(ha))
693 ha->link_data_rate = PORT_SPEED_1GB;
694 else
695 ha->link_data_rate = mb[1];
696
697 ql_dbg(ql_dbg_async, vha, 0x500a,
698 "LOOP UP detected (%s Gbps).\n",
699 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
700
701 vha->flags.management_server_logged_in = 0;
702 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
703 break;
704
705 case MBA_LOOP_DOWN: /* Loop Down Event */
706 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
707 ? RD_REG_WORD(&reg24->mailbox4) : 0;
708 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
709 : mbx;
710 ql_dbg(ql_dbg_async, vha, 0x500b,
711 "LOOP DOWN detected (%x %x %x %x).\n",
712 mb[1], mb[2], mb[3], mbx);
713
714 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
715 atomic_set(&vha->loop_state, LOOP_DOWN);
716 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
717 vha->device_flags |= DFLG_NO_CABLE;
718 qla2x00_mark_all_devices_lost(vha, 1);
719 }
720
721 if (vha->vp_idx) {
722 atomic_set(&vha->vp_state, VP_FAILED);
723 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
724 }
725
726 vha->flags.management_server_logged_in = 0;
727 ha->link_data_rate = PORT_SPEED_UNKNOWN;
728 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
729 break;
730
731 case MBA_LIP_RESET: /* LIP reset occurred */
732 ql_dbg(ql_dbg_async, vha, 0x500c,
733 "LIP reset occurred (%x).\n", mb[1]);
734
735 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
736 atomic_set(&vha->loop_state, LOOP_DOWN);
737 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
738 qla2x00_mark_all_devices_lost(vha, 1);
739 }
740
741 if (vha->vp_idx) {
742 atomic_set(&vha->vp_state, VP_FAILED);
743 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
744 }
745
746 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
747
748 ha->operating_mode = LOOP;
749 vha->flags.management_server_logged_in = 0;
750 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
751 break;
752
753 /* case MBA_DCBX_COMPLETE: */
754 case MBA_POINT_TO_POINT: /* Point-to-Point */
755 if (IS_QLA2100(ha))
756 break;
757
758 if (IS_CNA_CAPABLE(ha)) {
759 ql_dbg(ql_dbg_async, vha, 0x500d,
760 "DCBX Completed -- %04x %04x %04x.\n",
761 mb[1], mb[2], mb[3]);
762 if (ha->notify_dcbx_comp)
763 complete(&ha->dcbx_comp);
764
765 } else
766 ql_dbg(ql_dbg_async, vha, 0x500e,
767 "Asynchronous P2P MODE received.\n");
768
769 /*
770 * Until there's a transition from loop down to loop up, treat
771 * this as loop down only.
772 */
773 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
774 atomic_set(&vha->loop_state, LOOP_DOWN);
775 if (!atomic_read(&vha->loop_down_timer))
776 atomic_set(&vha->loop_down_timer,
777 LOOP_DOWN_TIME);
778 qla2x00_mark_all_devices_lost(vha, 1);
779 }
780
781 if (vha->vp_idx) {
782 atomic_set(&vha->vp_state, VP_FAILED);
783 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
784 }
785
786 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
787 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
788
789 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
790 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
791
792 ha->flags.gpsc_supported = 1;
793 vha->flags.management_server_logged_in = 0;
794 break;
795
796 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
797 if (IS_QLA2100(ha))
798 break;
799
800 ql_dbg(ql_dbg_async, vha, 0x500f,
801 "Configuration change detected: value=%x.\n", mb[1]);
802
803 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
804 atomic_set(&vha->loop_state, LOOP_DOWN);
805 if (!atomic_read(&vha->loop_down_timer))
806 atomic_set(&vha->loop_down_timer,
807 LOOP_DOWN_TIME);
808 qla2x00_mark_all_devices_lost(vha, 1);
809 }
810
811 if (vha->vp_idx) {
812 atomic_set(&vha->vp_state, VP_FAILED);
813 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
814 }
815
816 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
817 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
818 break;
819
820 case MBA_PORT_UPDATE: /* Port database update */
821 /*
822 * Handle only global and vn-port update events
823 *
824 * Relevant inputs:
825 * mb[1] = N_Port handle of changed port
826 * OR 0xffff for global event
827 * mb[2] = New login state
828 * 7 = Port logged out
829 * mb[3] = LSB is vp_idx, 0xff = all vps
830 *
831 * Skip processing if:
832 * Event is global, vp_idx is NOT all vps,
833 * vp_idx does not match
834 * Event is not global, vp_idx does not match
835 */
836 if (IS_QLA2XXX_MIDTYPE(ha) &&
837 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
838 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
839 break;
840
841 /* Global event -- port logout or port unavailable. */
842 if (mb[1] == 0xffff && mb[2] == 0x7) {
843 ql_dbg(ql_dbg_async, vha, 0x5010,
844 "Port unavailable %04x %04x %04x.\n",
845 mb[1], mb[2], mb[3]);
846 ql_log(ql_log_warn, vha, 0x505e,
847 "Link is offline.\n");
848
849 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
850 atomic_set(&vha->loop_state, LOOP_DOWN);
851 atomic_set(&vha->loop_down_timer,
852 LOOP_DOWN_TIME);
853 vha->device_flags |= DFLG_NO_CABLE;
854 qla2x00_mark_all_devices_lost(vha, 1);
855 }
856
857 if (vha->vp_idx) {
858 atomic_set(&vha->vp_state, VP_FAILED);
859 fc_vport_set_state(vha->fc_vport,
860 FC_VPORT_FAILED);
861 qla2x00_mark_all_devices_lost(vha, 1);
862 }
863
864 vha->flags.management_server_logged_in = 0;
865 ha->link_data_rate = PORT_SPEED_UNKNOWN;
866 break;
867 }
868
869 /*
870 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
871 * event etc. earlier indicating loop is down) then process
872 * it. Otherwise ignore it and Wait for RSCN to come in.
873 */
874 atomic_set(&vha->loop_down_timer, 0);
875 if (mb[1] != 0xffff || (mb[2] != 0x6 && mb[2] != 0x4)) {
876 ql_dbg(ql_dbg_async, vha, 0x5011,
877 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
878 mb[1], mb[2], mb[3]);
879
880 qlt_async_event(mb[0], vha, mb);
881 break;
882 }
883
884 ql_dbg(ql_dbg_async, vha, 0x5012,
885 "Port database changed %04x %04x %04x.\n",
886 mb[1], mb[2], mb[3]);
887 ql_log(ql_log_warn, vha, 0x505f,
888 "Link is operational (%s Gbps).\n",
889 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
890
891 /*
892 * Mark all devices as missing so we will login again.
893 */
894 atomic_set(&vha->loop_state, LOOP_UP);
895
896 qla2x00_mark_all_devices_lost(vha, 1);
897
898 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
899 set_bit(SCR_PENDING, &vha->dpc_flags);
900
901 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
902 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
903
904 qlt_async_event(mb[0], vha, mb);
905 break;
906
907 case MBA_RSCN_UPDATE: /* State Change Registration */
908 /* Check if the Vport has issued a SCR */
909 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
910 break;
911 /* Only handle SCNs for our Vport index. */
912 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
913 break;
914
915 ql_dbg(ql_dbg_async, vha, 0x5013,
916 "RSCN database changed -- %04x %04x %04x.\n",
917 mb[1], mb[2], mb[3]);
918
919 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
920 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
921 | vha->d_id.b.al_pa;
922 if (rscn_entry == host_pid) {
923 ql_dbg(ql_dbg_async, vha, 0x5014,
924 "Ignoring RSCN update to local host "
925 "port ID (%06x).\n", host_pid);
926 break;
927 }
928
929 /* Ignore reserved bits from RSCN-payload. */
930 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
931
932 /* Skip RSCNs for virtual ports on the same physical port */
933 if (qla2x00_is_a_vp_did(vha, rscn_entry))
934 break;
935
936 /*
937 * Search for the rport related to this RSCN entry and mark it
938 * as lost.
939 */
940 list_for_each_entry(fcport, &vha->vp_fcports, list) {
941 if (atomic_read(&fcport->state) != FCS_ONLINE)
942 continue;
943 tmp_pid = fcport->d_id.b24;
944 if (fcport->d_id.b24 == rscn_entry) {
945 qla2x00_mark_device_lost(vha, fcport, 0, 0);
946 break;
947 }
948 }
949
950 atomic_set(&vha->loop_down_timer, 0);
951 vha->flags.management_server_logged_in = 0;
952
953 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
954 set_bit(RSCN_UPDATE, &vha->dpc_flags);
955 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
956 break;
957
958 /* case MBA_RIO_RESPONSE: */
959 case MBA_ZIO_RESPONSE:
960 ql_dbg(ql_dbg_async, vha, 0x5015,
961 "[R|Z]IO update completion.\n");
962
963 if (IS_FWI2_CAPABLE(ha))
964 qla24xx_process_response_queue(vha, rsp);
965 else
966 qla2x00_process_response_queue(rsp);
967 break;
968
969 case MBA_DISCARD_RND_FRAME:
970 ql_dbg(ql_dbg_async, vha, 0x5016,
971 "Discard RND Frame -- %04x %04x %04x.\n",
972 mb[1], mb[2], mb[3]);
973 break;
974
975 case MBA_TRACE_NOTIFICATION:
976 ql_dbg(ql_dbg_async, vha, 0x5017,
977 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
978 break;
979
980 case MBA_ISP84XX_ALERT:
981 ql_dbg(ql_dbg_async, vha, 0x5018,
982 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
983 mb[1], mb[2], mb[3]);
984
985 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
986 switch (mb[1]) {
987 case A84_PANIC_RECOVERY:
988 ql_log(ql_log_info, vha, 0x5019,
989 "Alert 84XX: panic recovery %04x %04x.\n",
990 mb[2], mb[3]);
991 break;
992 case A84_OP_LOGIN_COMPLETE:
993 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
994 ql_log(ql_log_info, vha, 0x501a,
995 "Alert 84XX: firmware version %x.\n",
996 ha->cs84xx->op_fw_version);
997 break;
998 case A84_DIAG_LOGIN_COMPLETE:
999 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1000 ql_log(ql_log_info, vha, 0x501b,
1001 "Alert 84XX: diagnostic firmware version %x.\n",
1002 ha->cs84xx->diag_fw_version);
1003 break;
1004 case A84_GOLD_LOGIN_COMPLETE:
1005 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1006 ha->cs84xx->fw_update = 1;
1007 ql_log(ql_log_info, vha, 0x501c,
1008 "Alert 84XX: gold firmware version %x.\n",
1009 ha->cs84xx->gold_fw_version);
1010 break;
1011 default:
1012 ql_log(ql_log_warn, vha, 0x501d,
1013 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1014 mb[1], mb[2], mb[3]);
1015 }
1016 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1017 break;
1018 case MBA_DCBX_START:
1019 ql_dbg(ql_dbg_async, vha, 0x501e,
1020 "DCBX Started -- %04x %04x %04x.\n",
1021 mb[1], mb[2], mb[3]);
1022 break;
1023 case MBA_DCBX_PARAM_UPDATE:
1024 ql_dbg(ql_dbg_async, vha, 0x501f,
1025 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1026 mb[1], mb[2], mb[3]);
1027 break;
1028 case MBA_FCF_CONF_ERR:
1029 ql_dbg(ql_dbg_async, vha, 0x5020,
1030 "FCF Configuration Error -- %04x %04x %04x.\n",
1031 mb[1], mb[2], mb[3]);
1032 break;
1033 case MBA_IDC_NOTIFY:
1034 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1035 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1036 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1037 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1038 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1039 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1040 /*
1041 * Extend loop down timer since port is active.
1042 */
1043 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1044 atomic_set(&vha->loop_down_timer,
1045 LOOP_DOWN_TIME);
1046 qla2xxx_wake_dpc(vha);
1047 }
1048 }
1049 case MBA_IDC_COMPLETE:
1050 if (ha->notify_lb_portup_comp)
1051 complete(&ha->lb_portup_comp);
1052 /* Fallthru */
1053 case MBA_IDC_TIME_EXT:
1054 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1055 IS_QLA8044(ha))
1056 qla81xx_idc_event(vha, mb[0], mb[1]);
1057 break;
1058
1059 case MBA_IDC_AEN:
1060 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1061 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1062 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1063 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1064 qla83xx_handle_8200_aen(vha, mb);
1065 break;
1066
1067 default:
1068 ql_dbg(ql_dbg_async, vha, 0x5057,
1069 "Unknown AEN:%04x %04x %04x %04x\n",
1070 mb[0], mb[1], mb[2], mb[3]);
1071 }
1072
1073 qlt_async_event(mb[0], vha, mb);
1074
1075 if (!vha->vp_idx && ha->num_vhosts)
1076 qla2x00_alert_all_vps(rsp, mb);
1077 }
1078
1079 /**
1080 * qla2x00_process_completed_request() - Process a Fast Post response.
1081 * @ha: SCSI driver HA context
1082 * @index: SRB index
1083 */
1084 void
1085 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1086 struct req_que *req, uint32_t index)
1087 {
1088 srb_t *sp;
1089 struct qla_hw_data *ha = vha->hw;
1090
1091 /* Validate handle. */
1092 if (index >= req->num_outstanding_cmds) {
1093 ql_log(ql_log_warn, vha, 0x3014,
1094 "Invalid SCSI command index (%x).\n", index);
1095
1096 if (IS_P3P_TYPE(ha))
1097 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1098 else
1099 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1100 return;
1101 }
1102
1103 sp = req->outstanding_cmds[index];
1104 if (sp) {
1105 /* Free outstanding command slot. */
1106 req->outstanding_cmds[index] = NULL;
1107
1108 /* Save ISP completion status */
1109 sp->done(ha, sp, DID_OK << 16);
1110 } else {
1111 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1112
1113 if (IS_P3P_TYPE(ha))
1114 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1115 else
1116 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1117 }
1118 }
1119
1120 srb_t *
1121 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1122 struct req_que *req, void *iocb)
1123 {
1124 struct qla_hw_data *ha = vha->hw;
1125 sts_entry_t *pkt = iocb;
1126 srb_t *sp = NULL;
1127 uint16_t index;
1128
1129 index = LSW(pkt->handle);
1130 if (index >= req->num_outstanding_cmds) {
1131 ql_log(ql_log_warn, vha, 0x5031,
1132 "Invalid command index (%x).\n", index);
1133 if (IS_P3P_TYPE(ha))
1134 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1135 else
1136 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1137 goto done;
1138 }
1139 sp = req->outstanding_cmds[index];
1140 if (!sp) {
1141 ql_log(ql_log_warn, vha, 0x5032,
1142 "Invalid completion handle (%x) -- timed-out.\n", index);
1143 return sp;
1144 }
1145 if (sp->handle != index) {
1146 ql_log(ql_log_warn, vha, 0x5033,
1147 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1148 return NULL;
1149 }
1150
1151 req->outstanding_cmds[index] = NULL;
1152
1153 done:
1154 return sp;
1155 }
1156
1157 static void
1158 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1159 struct mbx_entry *mbx)
1160 {
1161 const char func[] = "MBX-IOCB";
1162 const char *type;
1163 fc_port_t *fcport;
1164 srb_t *sp;
1165 struct srb_iocb *lio;
1166 uint16_t *data;
1167 uint16_t status;
1168
1169 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1170 if (!sp)
1171 return;
1172
1173 lio = &sp->u.iocb_cmd;
1174 type = sp->name;
1175 fcport = sp->fcport;
1176 data = lio->u.logio.data;
1177
1178 data[0] = MBS_COMMAND_ERROR;
1179 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1180 QLA_LOGIO_LOGIN_RETRIED : 0;
1181 if (mbx->entry_status) {
1182 ql_dbg(ql_dbg_async, vha, 0x5043,
1183 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1184 "entry-status=%x status=%x state-flag=%x "
1185 "status-flags=%x.\n", type, sp->handle,
1186 fcport->d_id.b.domain, fcport->d_id.b.area,
1187 fcport->d_id.b.al_pa, mbx->entry_status,
1188 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1189 le16_to_cpu(mbx->status_flags));
1190
1191 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1192 (uint8_t *)mbx, sizeof(*mbx));
1193
1194 goto logio_done;
1195 }
1196
1197 status = le16_to_cpu(mbx->status);
1198 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1199 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1200 status = 0;
1201 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1202 ql_dbg(ql_dbg_async, vha, 0x5045,
1203 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1204 type, sp->handle, fcport->d_id.b.domain,
1205 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1206 le16_to_cpu(mbx->mb1));
1207
1208 data[0] = MBS_COMMAND_COMPLETE;
1209 if (sp->type == SRB_LOGIN_CMD) {
1210 fcport->port_type = FCT_TARGET;
1211 if (le16_to_cpu(mbx->mb1) & BIT_0)
1212 fcport->port_type = FCT_INITIATOR;
1213 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1214 fcport->flags |= FCF_FCP2_DEVICE;
1215 }
1216 goto logio_done;
1217 }
1218
1219 data[0] = le16_to_cpu(mbx->mb0);
1220 switch (data[0]) {
1221 case MBS_PORT_ID_USED:
1222 data[1] = le16_to_cpu(mbx->mb1);
1223 break;
1224 case MBS_LOOP_ID_USED:
1225 break;
1226 default:
1227 data[0] = MBS_COMMAND_ERROR;
1228 break;
1229 }
1230
1231 ql_log(ql_log_warn, vha, 0x5046,
1232 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1233 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1234 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1235 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1236 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1237 le16_to_cpu(mbx->mb7));
1238
1239 logio_done:
1240 sp->done(vha, sp, 0);
1241 }
1242
1243 static void
1244 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1245 sts_entry_t *pkt, int iocb_type)
1246 {
1247 const char func[] = "CT_IOCB";
1248 const char *type;
1249 srb_t *sp;
1250 struct fc_bsg_job *bsg_job;
1251 uint16_t comp_status;
1252 int res;
1253
1254 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1255 if (!sp)
1256 return;
1257
1258 bsg_job = sp->u.bsg_job;
1259
1260 type = "ct pass-through";
1261
1262 comp_status = le16_to_cpu(pkt->comp_status);
1263
1264 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1265 * fc payload to the caller
1266 */
1267 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1268 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1269
1270 if (comp_status != CS_COMPLETE) {
1271 if (comp_status == CS_DATA_UNDERRUN) {
1272 res = DID_OK << 16;
1273 bsg_job->reply->reply_payload_rcv_len =
1274 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1275
1276 ql_log(ql_log_warn, vha, 0x5048,
1277 "CT pass-through-%s error "
1278 "comp_status-status=0x%x total_byte = 0x%x.\n",
1279 type, comp_status,
1280 bsg_job->reply->reply_payload_rcv_len);
1281 } else {
1282 ql_log(ql_log_warn, vha, 0x5049,
1283 "CT pass-through-%s error "
1284 "comp_status-status=0x%x.\n", type, comp_status);
1285 res = DID_ERROR << 16;
1286 bsg_job->reply->reply_payload_rcv_len = 0;
1287 }
1288 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1289 (uint8_t *)pkt, sizeof(*pkt));
1290 } else {
1291 res = DID_OK << 16;
1292 bsg_job->reply->reply_payload_rcv_len =
1293 bsg_job->reply_payload.payload_len;
1294 bsg_job->reply_len = 0;
1295 }
1296
1297 sp->done(vha, sp, res);
1298 }
1299
1300 static void
1301 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1302 struct sts_entry_24xx *pkt, int iocb_type)
1303 {
1304 const char func[] = "ELS_CT_IOCB";
1305 const char *type;
1306 srb_t *sp;
1307 struct fc_bsg_job *bsg_job;
1308 uint16_t comp_status;
1309 uint32_t fw_status[3];
1310 uint8_t* fw_sts_ptr;
1311 int res;
1312
1313 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1314 if (!sp)
1315 return;
1316 bsg_job = sp->u.bsg_job;
1317
1318 type = NULL;
1319 switch (sp->type) {
1320 case SRB_ELS_CMD_RPT:
1321 case SRB_ELS_CMD_HST:
1322 type = "els";
1323 break;
1324 case SRB_CT_CMD:
1325 type = "ct pass-through";
1326 break;
1327 default:
1328 ql_dbg(ql_dbg_user, vha, 0x503e,
1329 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1330 return;
1331 }
1332
1333 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1334 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1335 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1336
1337 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1338 * fc payload to the caller
1339 */
1340 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1341 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1342
1343 if (comp_status != CS_COMPLETE) {
1344 if (comp_status == CS_DATA_UNDERRUN) {
1345 res = DID_OK << 16;
1346 bsg_job->reply->reply_payload_rcv_len =
1347 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1348
1349 ql_dbg(ql_dbg_user, vha, 0x503f,
1350 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1351 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1352 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1353 le16_to_cpu(((struct els_sts_entry_24xx *)
1354 pkt)->total_byte_count));
1355 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1356 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1357 }
1358 else {
1359 ql_dbg(ql_dbg_user, vha, 0x5040,
1360 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1361 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1362 type, sp->handle, comp_status,
1363 le16_to_cpu(((struct els_sts_entry_24xx *)
1364 pkt)->error_subcode_1),
1365 le16_to_cpu(((struct els_sts_entry_24xx *)
1366 pkt)->error_subcode_2));
1367 res = DID_ERROR << 16;
1368 bsg_job->reply->reply_payload_rcv_len = 0;
1369 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1370 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1371 }
1372 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1373 (uint8_t *)pkt, sizeof(*pkt));
1374 }
1375 else {
1376 res = DID_OK << 16;
1377 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1378 bsg_job->reply_len = 0;
1379 }
1380
1381 sp->done(vha, sp, res);
1382 }
1383
1384 static void
1385 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1386 struct logio_entry_24xx *logio)
1387 {
1388 const char func[] = "LOGIO-IOCB";
1389 const char *type;
1390 fc_port_t *fcport;
1391 srb_t *sp;
1392 struct srb_iocb *lio;
1393 uint16_t *data;
1394 uint32_t iop[2];
1395
1396 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1397 if (!sp)
1398 return;
1399
1400 lio = &sp->u.iocb_cmd;
1401 type = sp->name;
1402 fcport = sp->fcport;
1403 data = lio->u.logio.data;
1404
1405 data[0] = MBS_COMMAND_ERROR;
1406 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1407 QLA_LOGIO_LOGIN_RETRIED : 0;
1408 if (logio->entry_status) {
1409 ql_log(ql_log_warn, fcport->vha, 0x5034,
1410 "Async-%s error entry - hdl=%x"
1411 "portid=%02x%02x%02x entry-status=%x.\n",
1412 type, sp->handle, fcport->d_id.b.domain,
1413 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1414 logio->entry_status);
1415 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1416 (uint8_t *)logio, sizeof(*logio));
1417
1418 goto logio_done;
1419 }
1420
1421 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1422 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1423 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1424 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1425 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1426 le32_to_cpu(logio->io_parameter[0]));
1427
1428 data[0] = MBS_COMMAND_COMPLETE;
1429 if (sp->type != SRB_LOGIN_CMD)
1430 goto logio_done;
1431
1432 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1433 if (iop[0] & BIT_4) {
1434 fcport->port_type = FCT_TARGET;
1435 if (iop[0] & BIT_8)
1436 fcport->flags |= FCF_FCP2_DEVICE;
1437 } else if (iop[0] & BIT_5)
1438 fcport->port_type = FCT_INITIATOR;
1439
1440 if (iop[0] & BIT_7)
1441 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1442
1443 if (logio->io_parameter[7] || logio->io_parameter[8])
1444 fcport->supported_classes |= FC_COS_CLASS2;
1445 if (logio->io_parameter[9] || logio->io_parameter[10])
1446 fcport->supported_classes |= FC_COS_CLASS3;
1447
1448 goto logio_done;
1449 }
1450
1451 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1452 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1453 switch (iop[0]) {
1454 case LSC_SCODE_PORTID_USED:
1455 data[0] = MBS_PORT_ID_USED;
1456 data[1] = LSW(iop[1]);
1457 break;
1458 case LSC_SCODE_NPORT_USED:
1459 data[0] = MBS_LOOP_ID_USED;
1460 break;
1461 default:
1462 data[0] = MBS_COMMAND_ERROR;
1463 break;
1464 }
1465
1466 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1467 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1468 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1469 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1470 le16_to_cpu(logio->comp_status),
1471 le32_to_cpu(logio->io_parameter[0]),
1472 le32_to_cpu(logio->io_parameter[1]));
1473
1474 logio_done:
1475 sp->done(vha, sp, 0);
1476 }
1477
1478 static void
1479 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1480 struct tsk_mgmt_entry *tsk)
1481 {
1482 const char func[] = "TMF-IOCB";
1483 const char *type;
1484 fc_port_t *fcport;
1485 srb_t *sp;
1486 struct srb_iocb *iocb;
1487 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1488 int error = 1;
1489
1490 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1491 if (!sp)
1492 return;
1493
1494 iocb = &sp->u.iocb_cmd;
1495 type = sp->name;
1496 fcport = sp->fcport;
1497
1498 if (sts->entry_status) {
1499 ql_log(ql_log_warn, fcport->vha, 0x5038,
1500 "Async-%s error - hdl=%x entry-status(%x).\n",
1501 type, sp->handle, sts->entry_status);
1502 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1503 ql_log(ql_log_warn, fcport->vha, 0x5039,
1504 "Async-%s error - hdl=%x completion status(%x).\n",
1505 type, sp->handle, sts->comp_status);
1506 } else if (!(le16_to_cpu(sts->scsi_status) &
1507 SS_RESPONSE_INFO_LEN_VALID)) {
1508 ql_log(ql_log_warn, fcport->vha, 0x503a,
1509 "Async-%s error - hdl=%x no response info(%x).\n",
1510 type, sp->handle, sts->scsi_status);
1511 } else if (le32_to_cpu(sts->rsp_data_len) < 4) {
1512 ql_log(ql_log_warn, fcport->vha, 0x503b,
1513 "Async-%s error - hdl=%x not enough response(%d).\n",
1514 type, sp->handle, sts->rsp_data_len);
1515 } else if (sts->data[3]) {
1516 ql_log(ql_log_warn, fcport->vha, 0x503c,
1517 "Async-%s error - hdl=%x response(%x).\n",
1518 type, sp->handle, sts->data[3]);
1519 } else {
1520 error = 0;
1521 }
1522
1523 if (error) {
1524 iocb->u.tmf.data = error;
1525 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1526 (uint8_t *)sts, sizeof(*sts));
1527 }
1528
1529 sp->done(vha, sp, 0);
1530 }
1531
1532 /**
1533 * qla2x00_process_response_queue() - Process response queue entries.
1534 * @ha: SCSI driver HA context
1535 */
1536 void
1537 qla2x00_process_response_queue(struct rsp_que *rsp)
1538 {
1539 struct scsi_qla_host *vha;
1540 struct qla_hw_data *ha = rsp->hw;
1541 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1542 sts_entry_t *pkt;
1543 uint16_t handle_cnt;
1544 uint16_t cnt;
1545
1546 vha = pci_get_drvdata(ha->pdev);
1547
1548 if (!vha->flags.online)
1549 return;
1550
1551 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1552 pkt = (sts_entry_t *)rsp->ring_ptr;
1553
1554 rsp->ring_index++;
1555 if (rsp->ring_index == rsp->length) {
1556 rsp->ring_index = 0;
1557 rsp->ring_ptr = rsp->ring;
1558 } else {
1559 rsp->ring_ptr++;
1560 }
1561
1562 if (pkt->entry_status != 0) {
1563 qla2x00_error_entry(vha, rsp, pkt);
1564 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1565 wmb();
1566 continue;
1567 }
1568
1569 switch (pkt->entry_type) {
1570 case STATUS_TYPE:
1571 qla2x00_status_entry(vha, rsp, pkt);
1572 break;
1573 case STATUS_TYPE_21:
1574 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1575 for (cnt = 0; cnt < handle_cnt; cnt++) {
1576 qla2x00_process_completed_request(vha, rsp->req,
1577 ((sts21_entry_t *)pkt)->handle[cnt]);
1578 }
1579 break;
1580 case STATUS_TYPE_22:
1581 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1582 for (cnt = 0; cnt < handle_cnt; cnt++) {
1583 qla2x00_process_completed_request(vha, rsp->req,
1584 ((sts22_entry_t *)pkt)->handle[cnt]);
1585 }
1586 break;
1587 case STATUS_CONT_TYPE:
1588 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1589 break;
1590 case MBX_IOCB_TYPE:
1591 qla2x00_mbx_iocb_entry(vha, rsp->req,
1592 (struct mbx_entry *)pkt);
1593 break;
1594 case CT_IOCB_TYPE:
1595 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1596 break;
1597 default:
1598 /* Type Not Supported. */
1599 ql_log(ql_log_warn, vha, 0x504a,
1600 "Received unknown response pkt type %x "
1601 "entry status=%x.\n",
1602 pkt->entry_type, pkt->entry_status);
1603 break;
1604 }
1605 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1606 wmb();
1607 }
1608
1609 /* Adjust ring index */
1610 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1611 }
1612
1613 static inline void
1614 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1615 uint32_t sense_len, struct rsp_que *rsp, int res)
1616 {
1617 struct scsi_qla_host *vha = sp->fcport->vha;
1618 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1619 uint32_t track_sense_len;
1620
1621 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1622 sense_len = SCSI_SENSE_BUFFERSIZE;
1623
1624 SET_CMD_SENSE_LEN(sp, sense_len);
1625 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1626 track_sense_len = sense_len;
1627
1628 if (sense_len > par_sense_len)
1629 sense_len = par_sense_len;
1630
1631 memcpy(cp->sense_buffer, sense_data, sense_len);
1632
1633 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1634 track_sense_len -= sense_len;
1635 SET_CMD_SENSE_LEN(sp, track_sense_len);
1636
1637 if (track_sense_len != 0) {
1638 rsp->status_srb = sp;
1639 cp->result = res;
1640 }
1641
1642 if (sense_len) {
1643 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1644 "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
1645 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1646 cp);
1647 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1648 cp->sense_buffer, sense_len);
1649 }
1650 }
1651
1652 struct scsi_dif_tuple {
1653 __be16 guard; /* Checksum */
1654 __be16 app_tag; /* APPL identifier */
1655 __be32 ref_tag; /* Target LBA or indirect LBA */
1656 };
1657
1658 /*
1659 * Checks the guard or meta-data for the type of error
1660 * detected by the HBA. In case of errors, we set the
1661 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1662 * to indicate to the kernel that the HBA detected error.
1663 */
1664 static inline int
1665 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1666 {
1667 struct scsi_qla_host *vha = sp->fcport->vha;
1668 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1669 uint8_t *ap = &sts24->data[12];
1670 uint8_t *ep = &sts24->data[20];
1671 uint32_t e_ref_tag, a_ref_tag;
1672 uint16_t e_app_tag, a_app_tag;
1673 uint16_t e_guard, a_guard;
1674
1675 /*
1676 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1677 * would make guard field appear at offset 2
1678 */
1679 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1680 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1681 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1682 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1683 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1684 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1685
1686 ql_dbg(ql_dbg_io, vha, 0x3023,
1687 "iocb(s) %p Returned STATUS.\n", sts24);
1688
1689 ql_dbg(ql_dbg_io, vha, 0x3024,
1690 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1691 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1692 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1693 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1694 a_app_tag, e_app_tag, a_guard, e_guard);
1695
1696 /*
1697 * Ignore sector if:
1698 * For type 3: ref & app tag is all 'f's
1699 * For type 0,1,2: app tag is all 'f's
1700 */
1701 if ((a_app_tag == 0xffff) &&
1702 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1703 (a_ref_tag == 0xffffffff))) {
1704 uint32_t blocks_done, resid;
1705 sector_t lba_s = scsi_get_lba(cmd);
1706
1707 /* 2TB boundary case covered automatically with this */
1708 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1709
1710 resid = scsi_bufflen(cmd) - (blocks_done *
1711 cmd->device->sector_size);
1712
1713 scsi_set_resid(cmd, resid);
1714 cmd->result = DID_OK << 16;
1715
1716 /* Update protection tag */
1717 if (scsi_prot_sg_count(cmd)) {
1718 uint32_t i, j = 0, k = 0, num_ent;
1719 struct scatterlist *sg;
1720 struct sd_dif_tuple *spt;
1721
1722 /* Patch the corresponding protection tags */
1723 scsi_for_each_prot_sg(cmd, sg,
1724 scsi_prot_sg_count(cmd), i) {
1725 num_ent = sg_dma_len(sg) / 8;
1726 if (k + num_ent < blocks_done) {
1727 k += num_ent;
1728 continue;
1729 }
1730 j = blocks_done - k - 1;
1731 k = blocks_done;
1732 break;
1733 }
1734
1735 if (k != blocks_done) {
1736 ql_log(ql_log_warn, vha, 0x302f,
1737 "unexpected tag values tag:lba=%x:%llx)\n",
1738 e_ref_tag, (unsigned long long)lba_s);
1739 return 1;
1740 }
1741
1742 spt = page_address(sg_page(sg)) + sg->offset;
1743 spt += j;
1744
1745 spt->app_tag = 0xffff;
1746 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1747 spt->ref_tag = 0xffffffff;
1748 }
1749
1750 return 0;
1751 }
1752
1753 /* check guard */
1754 if (e_guard != a_guard) {
1755 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1756 0x10, 0x1);
1757 set_driver_byte(cmd, DRIVER_SENSE);
1758 set_host_byte(cmd, DID_ABORT);
1759 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1760 return 1;
1761 }
1762
1763 /* check ref tag */
1764 if (e_ref_tag != a_ref_tag) {
1765 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1766 0x10, 0x3);
1767 set_driver_byte(cmd, DRIVER_SENSE);
1768 set_host_byte(cmd, DID_ABORT);
1769 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1770 return 1;
1771 }
1772
1773 /* check appl tag */
1774 if (e_app_tag != a_app_tag) {
1775 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1776 0x10, 0x2);
1777 set_driver_byte(cmd, DRIVER_SENSE);
1778 set_host_byte(cmd, DID_ABORT);
1779 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1780 return 1;
1781 }
1782
1783 return 1;
1784 }
1785
1786 static void
1787 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1788 struct req_que *req, uint32_t index)
1789 {
1790 struct qla_hw_data *ha = vha->hw;
1791 srb_t *sp;
1792 uint16_t comp_status;
1793 uint16_t scsi_status;
1794 uint16_t thread_id;
1795 uint32_t rval = EXT_STATUS_OK;
1796 struct fc_bsg_job *bsg_job = NULL;
1797 sts_entry_t *sts;
1798 struct sts_entry_24xx *sts24;
1799 sts = (sts_entry_t *) pkt;
1800 sts24 = (struct sts_entry_24xx *) pkt;
1801
1802 /* Validate handle. */
1803 if (index >= req->num_outstanding_cmds) {
1804 ql_log(ql_log_warn, vha, 0x70af,
1805 "Invalid SCSI completion handle 0x%x.\n", index);
1806 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1807 return;
1808 }
1809
1810 sp = req->outstanding_cmds[index];
1811 if (sp) {
1812 /* Free outstanding command slot. */
1813 req->outstanding_cmds[index] = NULL;
1814 bsg_job = sp->u.bsg_job;
1815 } else {
1816 ql_log(ql_log_warn, vha, 0x70b0,
1817 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1818 req->id, index);
1819
1820 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1821 return;
1822 }
1823
1824 if (IS_FWI2_CAPABLE(ha)) {
1825 comp_status = le16_to_cpu(sts24->comp_status);
1826 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1827 } else {
1828 comp_status = le16_to_cpu(sts->comp_status);
1829 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1830 }
1831
1832 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1833 switch (comp_status) {
1834 case CS_COMPLETE:
1835 if (scsi_status == 0) {
1836 bsg_job->reply->reply_payload_rcv_len =
1837 bsg_job->reply_payload.payload_len;
1838 vha->qla_stats.input_bytes +=
1839 bsg_job->reply->reply_payload_rcv_len;
1840 vha->qla_stats.input_requests++;
1841 rval = EXT_STATUS_OK;
1842 }
1843 goto done;
1844
1845 case CS_DATA_OVERRUN:
1846 ql_dbg(ql_dbg_user, vha, 0x70b1,
1847 "Command completed with date overrun thread_id=%d\n",
1848 thread_id);
1849 rval = EXT_STATUS_DATA_OVERRUN;
1850 break;
1851
1852 case CS_DATA_UNDERRUN:
1853 ql_dbg(ql_dbg_user, vha, 0x70b2,
1854 "Command completed with date underrun thread_id=%d\n",
1855 thread_id);
1856 rval = EXT_STATUS_DATA_UNDERRUN;
1857 break;
1858 case CS_BIDIR_RD_OVERRUN:
1859 ql_dbg(ql_dbg_user, vha, 0x70b3,
1860 "Command completed with read data overrun thread_id=%d\n",
1861 thread_id);
1862 rval = EXT_STATUS_DATA_OVERRUN;
1863 break;
1864
1865 case CS_BIDIR_RD_WR_OVERRUN:
1866 ql_dbg(ql_dbg_user, vha, 0x70b4,
1867 "Command completed with read and write data overrun "
1868 "thread_id=%d\n", thread_id);
1869 rval = EXT_STATUS_DATA_OVERRUN;
1870 break;
1871
1872 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1873 ql_dbg(ql_dbg_user, vha, 0x70b5,
1874 "Command completed with read data over and write data "
1875 "underrun thread_id=%d\n", thread_id);
1876 rval = EXT_STATUS_DATA_OVERRUN;
1877 break;
1878
1879 case CS_BIDIR_RD_UNDERRUN:
1880 ql_dbg(ql_dbg_user, vha, 0x70b6,
1881 "Command completed with read data data underrun "
1882 "thread_id=%d\n", thread_id);
1883 rval = EXT_STATUS_DATA_UNDERRUN;
1884 break;
1885
1886 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1887 ql_dbg(ql_dbg_user, vha, 0x70b7,
1888 "Command completed with read data under and write data "
1889 "overrun thread_id=%d\n", thread_id);
1890 rval = EXT_STATUS_DATA_UNDERRUN;
1891 break;
1892
1893 case CS_BIDIR_RD_WR_UNDERRUN:
1894 ql_dbg(ql_dbg_user, vha, 0x70b8,
1895 "Command completed with read and write data underrun "
1896 "thread_id=%d\n", thread_id);
1897 rval = EXT_STATUS_DATA_UNDERRUN;
1898 break;
1899
1900 case CS_BIDIR_DMA:
1901 ql_dbg(ql_dbg_user, vha, 0x70b9,
1902 "Command completed with data DMA error thread_id=%d\n",
1903 thread_id);
1904 rval = EXT_STATUS_DMA_ERR;
1905 break;
1906
1907 case CS_TIMEOUT:
1908 ql_dbg(ql_dbg_user, vha, 0x70ba,
1909 "Command completed with timeout thread_id=%d\n",
1910 thread_id);
1911 rval = EXT_STATUS_TIMEOUT;
1912 break;
1913 default:
1914 ql_dbg(ql_dbg_user, vha, 0x70bb,
1915 "Command completed with completion status=0x%x "
1916 "thread_id=%d\n", comp_status, thread_id);
1917 rval = EXT_STATUS_ERR;
1918 break;
1919 }
1920 bsg_job->reply->reply_payload_rcv_len = 0;
1921
1922 done:
1923 /* Return the vendor specific reply to API */
1924 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1925 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1926 /* Always return DID_OK, bsg will send the vendor specific response
1927 * in this case only */
1928 sp->done(vha, sp, (DID_OK << 6));
1929
1930 }
1931
1932 /**
1933 * qla2x00_status_entry() - Process a Status IOCB entry.
1934 * @ha: SCSI driver HA context
1935 * @pkt: Entry pointer
1936 */
1937 static void
1938 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1939 {
1940 srb_t *sp;
1941 fc_port_t *fcport;
1942 struct scsi_cmnd *cp;
1943 sts_entry_t *sts;
1944 struct sts_entry_24xx *sts24;
1945 uint16_t comp_status;
1946 uint16_t scsi_status;
1947 uint16_t ox_id;
1948 uint8_t lscsi_status;
1949 int32_t resid;
1950 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
1951 fw_resid_len;
1952 uint8_t *rsp_info, *sense_data;
1953 struct qla_hw_data *ha = vha->hw;
1954 uint32_t handle;
1955 uint16_t que;
1956 struct req_que *req;
1957 int logit = 1;
1958 int res = 0;
1959 uint16_t state_flags = 0;
1960
1961 sts = (sts_entry_t *) pkt;
1962 sts24 = (struct sts_entry_24xx *) pkt;
1963 if (IS_FWI2_CAPABLE(ha)) {
1964 comp_status = le16_to_cpu(sts24->comp_status);
1965 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1966 state_flags = le16_to_cpu(sts24->state_flags);
1967 } else {
1968 comp_status = le16_to_cpu(sts->comp_status);
1969 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1970 }
1971 handle = (uint32_t) LSW(sts->handle);
1972 que = MSW(sts->handle);
1973 req = ha->req_q_map[que];
1974
1975 /* Check for invalid queue pointer */
1976 if (req == NULL ||
1977 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
1978 ql_dbg(ql_dbg_io, vha, 0x3059,
1979 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
1980 "que=%u.\n", sts->handle, req, que);
1981 return;
1982 }
1983
1984 /* Validate handle. */
1985 if (handle < req->num_outstanding_cmds)
1986 sp = req->outstanding_cmds[handle];
1987 else
1988 sp = NULL;
1989
1990 if (sp == NULL) {
1991 ql_dbg(ql_dbg_io, vha, 0x3017,
1992 "Invalid status handle (0x%x).\n", sts->handle);
1993
1994 if (IS_P3P_TYPE(ha))
1995 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1996 else
1997 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1998 qla2xxx_wake_dpc(vha);
1999 return;
2000 }
2001
2002 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2003 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2004 return;
2005 }
2006
2007 /* Fast path completion. */
2008 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2009 qla2x00_do_host_ramp_up(vha);
2010 qla2x00_process_completed_request(vha, req, handle);
2011
2012 return;
2013 }
2014
2015 req->outstanding_cmds[handle] = NULL;
2016 cp = GET_CMD_SP(sp);
2017 if (cp == NULL) {
2018 ql_dbg(ql_dbg_io, vha, 0x3018,
2019 "Command already returned (0x%x/%p).\n",
2020 sts->handle, sp);
2021
2022 return;
2023 }
2024
2025 lscsi_status = scsi_status & STATUS_MASK;
2026
2027 fcport = sp->fcport;
2028
2029 ox_id = 0;
2030 sense_len = par_sense_len = rsp_info_len = resid_len =
2031 fw_resid_len = 0;
2032 if (IS_FWI2_CAPABLE(ha)) {
2033 if (scsi_status & SS_SENSE_LEN_VALID)
2034 sense_len = le32_to_cpu(sts24->sense_len);
2035 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2036 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2037 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2038 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2039 if (comp_status == CS_DATA_UNDERRUN)
2040 fw_resid_len = le32_to_cpu(sts24->residual_len);
2041 rsp_info = sts24->data;
2042 sense_data = sts24->data;
2043 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2044 ox_id = le16_to_cpu(sts24->ox_id);
2045 par_sense_len = sizeof(sts24->data);
2046 } else {
2047 if (scsi_status & SS_SENSE_LEN_VALID)
2048 sense_len = le16_to_cpu(sts->req_sense_length);
2049 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2050 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2051 resid_len = le32_to_cpu(sts->residual_length);
2052 rsp_info = sts->rsp_info;
2053 sense_data = sts->req_sense_data;
2054 par_sense_len = sizeof(sts->req_sense_data);
2055 }
2056
2057 /* Check for any FCP transport errors. */
2058 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2059 /* Sense data lies beyond any FCP RESPONSE data. */
2060 if (IS_FWI2_CAPABLE(ha)) {
2061 sense_data += rsp_info_len;
2062 par_sense_len -= rsp_info_len;
2063 }
2064 if (rsp_info_len > 3 && rsp_info[3]) {
2065 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2066 "FCP I/O protocol failure (0x%x/0x%x).\n",
2067 rsp_info_len, rsp_info[3]);
2068
2069 res = DID_BUS_BUSY << 16;
2070 goto out;
2071 }
2072 }
2073
2074 /* Check for overrun. */
2075 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2076 scsi_status & SS_RESIDUAL_OVER)
2077 comp_status = CS_DATA_OVERRUN;
2078
2079 /*
2080 * Based on Host and scsi status generate status code for Linux
2081 */
2082 switch (comp_status) {
2083 case CS_COMPLETE:
2084 case CS_QUEUE_FULL:
2085 if (scsi_status == 0) {
2086 res = DID_OK << 16;
2087 break;
2088 }
2089 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2090 resid = resid_len;
2091 scsi_set_resid(cp, resid);
2092
2093 if (!lscsi_status &&
2094 ((unsigned)(scsi_bufflen(cp) - resid) <
2095 cp->underflow)) {
2096 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2097 "Mid-layer underflow "
2098 "detected (0x%x of 0x%x bytes).\n",
2099 resid, scsi_bufflen(cp));
2100
2101 res = DID_ERROR << 16;
2102 break;
2103 }
2104 }
2105 res = DID_OK << 16 | lscsi_status;
2106
2107 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2108 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2109 "QUEUE FULL detected.\n");
2110 break;
2111 }
2112 logit = 0;
2113 if (lscsi_status != SS_CHECK_CONDITION)
2114 break;
2115
2116 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2117 if (!(scsi_status & SS_SENSE_LEN_VALID))
2118 break;
2119
2120 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2121 rsp, res);
2122 break;
2123
2124 case CS_DATA_UNDERRUN:
2125 /* Use F/W calculated residual length. */
2126 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2127 scsi_set_resid(cp, resid);
2128 if (scsi_status & SS_RESIDUAL_UNDER) {
2129 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2130 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2131 "Dropped frame(s) detected "
2132 "(0x%x of 0x%x bytes).\n",
2133 resid, scsi_bufflen(cp));
2134
2135 res = DID_ERROR << 16 | lscsi_status;
2136 goto check_scsi_status;
2137 }
2138
2139 if (!lscsi_status &&
2140 ((unsigned)(scsi_bufflen(cp) - resid) <
2141 cp->underflow)) {
2142 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2143 "Mid-layer underflow "
2144 "detected (0x%x of 0x%x bytes).\n",
2145 resid, scsi_bufflen(cp));
2146
2147 res = DID_ERROR << 16;
2148 break;
2149 }
2150 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2151 lscsi_status != SAM_STAT_BUSY) {
2152 /*
2153 * scsi status of task set and busy are considered to be
2154 * task not completed.
2155 */
2156
2157 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2158 "Dropped frame(s) detected (0x%x "
2159 "of 0x%x bytes).\n", resid,
2160 scsi_bufflen(cp));
2161
2162 res = DID_ERROR << 16 | lscsi_status;
2163 goto check_scsi_status;
2164 } else {
2165 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2166 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2167 scsi_status, lscsi_status);
2168 }
2169
2170 res = DID_OK << 16 | lscsi_status;
2171 logit = 0;
2172
2173 check_scsi_status:
2174 /*
2175 * Check to see if SCSI Status is non zero. If so report SCSI
2176 * Status.
2177 */
2178 if (lscsi_status != 0) {
2179 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2180 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2181 "QUEUE FULL detected.\n");
2182 logit = 1;
2183 break;
2184 }
2185 if (lscsi_status != SS_CHECK_CONDITION)
2186 break;
2187
2188 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2189 if (!(scsi_status & SS_SENSE_LEN_VALID))
2190 break;
2191
2192 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2193 sense_len, rsp, res);
2194 }
2195 break;
2196
2197 case CS_PORT_LOGGED_OUT:
2198 case CS_PORT_CONFIG_CHG:
2199 case CS_PORT_BUSY:
2200 case CS_INCOMPLETE:
2201 case CS_PORT_UNAVAILABLE:
2202 case CS_TIMEOUT:
2203 case CS_RESET:
2204
2205 /*
2206 * We are going to have the fc class block the rport
2207 * while we try to recover so instruct the mid layer
2208 * to requeue until the class decides how to handle this.
2209 */
2210 res = DID_TRANSPORT_DISRUPTED << 16;
2211
2212 if (comp_status == CS_TIMEOUT) {
2213 if (IS_FWI2_CAPABLE(ha))
2214 break;
2215 else if ((le16_to_cpu(sts->status_flags) &
2216 SF_LOGOUT_SENT) == 0)
2217 break;
2218 }
2219
2220 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2221 "Port to be marked lost on fcport=%02x%02x%02x, current "
2222 "port state= %s.\n", fcport->d_id.b.domain,
2223 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2224 port_state_str[atomic_read(&fcport->state)]);
2225
2226 if (atomic_read(&fcport->state) == FCS_ONLINE)
2227 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2228 break;
2229
2230 case CS_ABORTED:
2231 res = DID_RESET << 16;
2232 break;
2233
2234 case CS_DIF_ERROR:
2235 logit = qla2x00_handle_dif_error(sp, sts24);
2236 res = cp->result;
2237 break;
2238
2239 case CS_TRANSPORT:
2240 res = DID_ERROR << 16;
2241
2242 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2243 break;
2244
2245 if (state_flags & BIT_4)
2246 scmd_printk(KERN_WARNING, cp,
2247 "Unsupported device '%s' found.\n",
2248 cp->device->vendor);
2249 break;
2250
2251 default:
2252 res = DID_ERROR << 16;
2253 break;
2254 }
2255
2256 out:
2257 if (logit)
2258 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2259 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%d "
2260 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2261 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2262 comp_status, scsi_status, res, vha->host_no,
2263 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2264 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2265 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2266 resid_len, fw_resid_len);
2267
2268 if (!res)
2269 qla2x00_do_host_ramp_up(vha);
2270
2271 if (rsp->status_srb == NULL)
2272 sp->done(ha, sp, res);
2273 }
2274
2275 /**
2276 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2277 * @ha: SCSI driver HA context
2278 * @pkt: Entry pointer
2279 *
2280 * Extended sense data.
2281 */
2282 static void
2283 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2284 {
2285 uint8_t sense_sz = 0;
2286 struct qla_hw_data *ha = rsp->hw;
2287 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2288 srb_t *sp = rsp->status_srb;
2289 struct scsi_cmnd *cp;
2290 uint32_t sense_len;
2291 uint8_t *sense_ptr;
2292
2293 if (!sp || !GET_CMD_SENSE_LEN(sp))
2294 return;
2295
2296 sense_len = GET_CMD_SENSE_LEN(sp);
2297 sense_ptr = GET_CMD_SENSE_PTR(sp);
2298
2299 cp = GET_CMD_SP(sp);
2300 if (cp == NULL) {
2301 ql_log(ql_log_warn, vha, 0x3025,
2302 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2303
2304 rsp->status_srb = NULL;
2305 return;
2306 }
2307
2308 if (sense_len > sizeof(pkt->data))
2309 sense_sz = sizeof(pkt->data);
2310 else
2311 sense_sz = sense_len;
2312
2313 /* Move sense data. */
2314 if (IS_FWI2_CAPABLE(ha))
2315 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2316 memcpy(sense_ptr, pkt->data, sense_sz);
2317 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2318 sense_ptr, sense_sz);
2319
2320 sense_len -= sense_sz;
2321 sense_ptr += sense_sz;
2322
2323 SET_CMD_SENSE_PTR(sp, sense_ptr);
2324 SET_CMD_SENSE_LEN(sp, sense_len);
2325
2326 /* Place command on done queue. */
2327 if (sense_len == 0) {
2328 rsp->status_srb = NULL;
2329 sp->done(ha, sp, cp->result);
2330 }
2331 }
2332
2333 /**
2334 * qla2x00_error_entry() - Process an error entry.
2335 * @ha: SCSI driver HA context
2336 * @pkt: Entry pointer
2337 */
2338 static void
2339 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2340 {
2341 srb_t *sp;
2342 struct qla_hw_data *ha = vha->hw;
2343 const char func[] = "ERROR-IOCB";
2344 uint16_t que = MSW(pkt->handle);
2345 struct req_que *req = NULL;
2346 int res = DID_ERROR << 16;
2347
2348 ql_dbg(ql_dbg_async, vha, 0x502a,
2349 "type of error status in response: 0x%x\n", pkt->entry_status);
2350
2351 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2352 goto fatal;
2353
2354 req = ha->req_q_map[que];
2355
2356 if (pkt->entry_status & RF_BUSY)
2357 res = DID_BUS_BUSY << 16;
2358
2359 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2360 if (sp) {
2361 sp->done(ha, sp, res);
2362 return;
2363 }
2364 fatal:
2365 ql_log(ql_log_warn, vha, 0x5030,
2366 "Error entry - invalid handle/queue.\n");
2367
2368 if (IS_P3P_TYPE(ha))
2369 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2370 else
2371 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2372 qla2xxx_wake_dpc(vha);
2373 }
2374
2375 /**
2376 * qla24xx_mbx_completion() - Process mailbox command completions.
2377 * @ha: SCSI driver HA context
2378 * @mb0: Mailbox0 register
2379 */
2380 static void
2381 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2382 {
2383 uint16_t cnt;
2384 uint32_t mboxes;
2385 uint16_t __iomem *wptr;
2386 struct qla_hw_data *ha = vha->hw;
2387 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2388
2389 /* Read all mbox registers? */
2390 mboxes = (1 << ha->mbx_count) - 1;
2391 if (!ha->mcp)
2392 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2393 else
2394 mboxes = ha->mcp->in_mb;
2395
2396 /* Load return mailbox registers. */
2397 ha->flags.mbox_int = 1;
2398 ha->mailbox_out[0] = mb0;
2399 mboxes >>= 1;
2400 wptr = (uint16_t __iomem *)&reg->mailbox1;
2401
2402 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2403 if (mboxes & BIT_0)
2404 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2405
2406 mboxes >>= 1;
2407 wptr++;
2408 }
2409 }
2410
2411 /**
2412 * qla24xx_process_response_queue() - Process response queue entries.
2413 * @ha: SCSI driver HA context
2414 */
2415 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2416 struct rsp_que *rsp)
2417 {
2418 struct sts_entry_24xx *pkt;
2419 struct qla_hw_data *ha = vha->hw;
2420
2421 if (!vha->flags.online)
2422 return;
2423
2424 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2425 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2426
2427 rsp->ring_index++;
2428 if (rsp->ring_index == rsp->length) {
2429 rsp->ring_index = 0;
2430 rsp->ring_ptr = rsp->ring;
2431 } else {
2432 rsp->ring_ptr++;
2433 }
2434
2435 if (pkt->entry_status != 0) {
2436 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2437
2438 (void)qlt_24xx_process_response_error(vha, pkt);
2439
2440 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2441 wmb();
2442 continue;
2443 }
2444
2445 switch (pkt->entry_type) {
2446 case STATUS_TYPE:
2447 qla2x00_status_entry(vha, rsp, pkt);
2448 break;
2449 case STATUS_CONT_TYPE:
2450 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2451 break;
2452 case VP_RPT_ID_IOCB_TYPE:
2453 qla24xx_report_id_acquisition(vha,
2454 (struct vp_rpt_id_entry_24xx *)pkt);
2455 break;
2456 case LOGINOUT_PORT_IOCB_TYPE:
2457 qla24xx_logio_entry(vha, rsp->req,
2458 (struct logio_entry_24xx *)pkt);
2459 break;
2460 case TSK_MGMT_IOCB_TYPE:
2461 qla24xx_tm_iocb_entry(vha, rsp->req,
2462 (struct tsk_mgmt_entry *)pkt);
2463 break;
2464 case CT_IOCB_TYPE:
2465 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2466 break;
2467 case ELS_IOCB_TYPE:
2468 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2469 break;
2470 case ABTS_RECV_24XX:
2471 /* ensure that the ATIO queue is empty */
2472 qlt_24xx_process_atio_queue(vha);
2473 case ABTS_RESP_24XX:
2474 case CTIO_TYPE7:
2475 case NOTIFY_ACK_TYPE:
2476 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2477 break;
2478 case MARKER_TYPE:
2479 /* Do nothing in this case, this check is to prevent it
2480 * from falling into default case
2481 */
2482 break;
2483 default:
2484 /* Type Not Supported. */
2485 ql_dbg(ql_dbg_async, vha, 0x5042,
2486 "Received unknown response pkt type %x "
2487 "entry status=%x.\n",
2488 pkt->entry_type, pkt->entry_status);
2489 break;
2490 }
2491 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2492 wmb();
2493 }
2494
2495 /* Adjust ring index */
2496 if (IS_P3P_TYPE(ha)) {
2497 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2498 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2499 } else
2500 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2501 }
2502
2503 static void
2504 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2505 {
2506 int rval;
2507 uint32_t cnt;
2508 struct qla_hw_data *ha = vha->hw;
2509 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2510
2511 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha))
2512 return;
2513
2514 rval = QLA_SUCCESS;
2515 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2516 RD_REG_DWORD(&reg->iobase_addr);
2517 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2518 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2519 rval == QLA_SUCCESS; cnt--) {
2520 if (cnt) {
2521 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2522 udelay(10);
2523 } else
2524 rval = QLA_FUNCTION_TIMEOUT;
2525 }
2526 if (rval == QLA_SUCCESS)
2527 goto next_test;
2528
2529 rval = QLA_SUCCESS;
2530 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2531 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2532 rval == QLA_SUCCESS; cnt--) {
2533 if (cnt) {
2534 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2535 udelay(10);
2536 } else
2537 rval = QLA_FUNCTION_TIMEOUT;
2538 }
2539 if (rval != QLA_SUCCESS)
2540 goto done;
2541
2542 next_test:
2543 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2544 ql_log(ql_log_info, vha, 0x504c,
2545 "Additional code -- 0x55AA.\n");
2546
2547 done:
2548 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2549 RD_REG_DWORD(&reg->iobase_window);
2550 }
2551
2552 /**
2553 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2554 * @irq:
2555 * @dev_id: SCSI driver HA context
2556 *
2557 * Called by system whenever the host adapter generates an interrupt.
2558 *
2559 * Returns handled flag.
2560 */
2561 irqreturn_t
2562 qla24xx_intr_handler(int irq, void *dev_id)
2563 {
2564 scsi_qla_host_t *vha;
2565 struct qla_hw_data *ha;
2566 struct device_reg_24xx __iomem *reg;
2567 int status;
2568 unsigned long iter;
2569 uint32_t stat;
2570 uint32_t hccr;
2571 uint16_t mb[8];
2572 struct rsp_que *rsp;
2573 unsigned long flags;
2574
2575 rsp = (struct rsp_que *) dev_id;
2576 if (!rsp) {
2577 ql_log(ql_log_info, NULL, 0x5059,
2578 "%s: NULL response queue pointer.\n", __func__);
2579 return IRQ_NONE;
2580 }
2581
2582 ha = rsp->hw;
2583 reg = &ha->iobase->isp24;
2584 status = 0;
2585
2586 if (unlikely(pci_channel_offline(ha->pdev)))
2587 return IRQ_HANDLED;
2588
2589 spin_lock_irqsave(&ha->hardware_lock, flags);
2590 vha = pci_get_drvdata(ha->pdev);
2591 for (iter = 50; iter--; ) {
2592 stat = RD_REG_DWORD(&reg->host_status);
2593 if (stat & HSRX_RISC_PAUSED) {
2594 if (unlikely(pci_channel_offline(ha->pdev)))
2595 break;
2596
2597 hccr = RD_REG_DWORD(&reg->hccr);
2598
2599 ql_log(ql_log_warn, vha, 0x504b,
2600 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2601 hccr);
2602
2603 qla2xxx_check_risc_status(vha);
2604
2605 ha->isp_ops->fw_dump(vha, 1);
2606 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2607 break;
2608 } else if ((stat & HSRX_RISC_INT) == 0)
2609 break;
2610
2611 switch (stat & 0xff) {
2612 case INTR_ROM_MB_SUCCESS:
2613 case INTR_ROM_MB_FAILED:
2614 case INTR_MB_SUCCESS:
2615 case INTR_MB_FAILED:
2616 qla24xx_mbx_completion(vha, MSW(stat));
2617 status |= MBX_INTERRUPT;
2618
2619 break;
2620 case INTR_ASYNC_EVENT:
2621 mb[0] = MSW(stat);
2622 mb[1] = RD_REG_WORD(&reg->mailbox1);
2623 mb[2] = RD_REG_WORD(&reg->mailbox2);
2624 mb[3] = RD_REG_WORD(&reg->mailbox3);
2625 qla2x00_async_event(vha, rsp, mb);
2626 break;
2627 case INTR_RSP_QUE_UPDATE:
2628 case INTR_RSP_QUE_UPDATE_83XX:
2629 qla24xx_process_response_queue(vha, rsp);
2630 break;
2631 case INTR_ATIO_QUE_UPDATE:
2632 qlt_24xx_process_atio_queue(vha);
2633 break;
2634 case INTR_ATIO_RSP_QUE_UPDATE:
2635 qlt_24xx_process_atio_queue(vha);
2636 qla24xx_process_response_queue(vha, rsp);
2637 break;
2638 default:
2639 ql_dbg(ql_dbg_async, vha, 0x504f,
2640 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2641 break;
2642 }
2643 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2644 RD_REG_DWORD_RELAXED(&reg->hccr);
2645 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2646 ndelay(3500);
2647 }
2648 qla2x00_handle_mbx_completion(ha, status);
2649 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2650
2651 return IRQ_HANDLED;
2652 }
2653
2654 static irqreturn_t
2655 qla24xx_msix_rsp_q(int irq, void *dev_id)
2656 {
2657 struct qla_hw_data *ha;
2658 struct rsp_que *rsp;
2659 struct device_reg_24xx __iomem *reg;
2660 struct scsi_qla_host *vha;
2661 unsigned long flags;
2662
2663 rsp = (struct rsp_que *) dev_id;
2664 if (!rsp) {
2665 ql_log(ql_log_info, NULL, 0x505a,
2666 "%s: NULL response queue pointer.\n", __func__);
2667 return IRQ_NONE;
2668 }
2669 ha = rsp->hw;
2670 reg = &ha->iobase->isp24;
2671
2672 spin_lock_irqsave(&ha->hardware_lock, flags);
2673
2674 vha = pci_get_drvdata(ha->pdev);
2675 qla24xx_process_response_queue(vha, rsp);
2676 if (!ha->flags.disable_msix_handshake) {
2677 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2678 RD_REG_DWORD_RELAXED(&reg->hccr);
2679 }
2680 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2681
2682 return IRQ_HANDLED;
2683 }
2684
2685 static irqreturn_t
2686 qla25xx_msix_rsp_q(int irq, void *dev_id)
2687 {
2688 struct qla_hw_data *ha;
2689 struct rsp_que *rsp;
2690 struct device_reg_24xx __iomem *reg;
2691 unsigned long flags;
2692
2693 rsp = (struct rsp_que *) dev_id;
2694 if (!rsp) {
2695 ql_log(ql_log_info, NULL, 0x505b,
2696 "%s: NULL response queue pointer.\n", __func__);
2697 return IRQ_NONE;
2698 }
2699 ha = rsp->hw;
2700
2701 /* Clear the interrupt, if enabled, for this response queue */
2702 if (!ha->flags.disable_msix_handshake) {
2703 reg = &ha->iobase->isp24;
2704 spin_lock_irqsave(&ha->hardware_lock, flags);
2705 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2706 RD_REG_DWORD_RELAXED(&reg->hccr);
2707 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2708 }
2709 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2710
2711 return IRQ_HANDLED;
2712 }
2713
2714 static irqreturn_t
2715 qla24xx_msix_default(int irq, void *dev_id)
2716 {
2717 scsi_qla_host_t *vha;
2718 struct qla_hw_data *ha;
2719 struct rsp_que *rsp;
2720 struct device_reg_24xx __iomem *reg;
2721 int status;
2722 uint32_t stat;
2723 uint32_t hccr;
2724 uint16_t mb[8];
2725 unsigned long flags;
2726
2727 rsp = (struct rsp_que *) dev_id;
2728 if (!rsp) {
2729 ql_log(ql_log_info, NULL, 0x505c,
2730 "%s: NULL response queue pointer.\n", __func__);
2731 return IRQ_NONE;
2732 }
2733 ha = rsp->hw;
2734 reg = &ha->iobase->isp24;
2735 status = 0;
2736
2737 spin_lock_irqsave(&ha->hardware_lock, flags);
2738 vha = pci_get_drvdata(ha->pdev);
2739 do {
2740 stat = RD_REG_DWORD(&reg->host_status);
2741 if (stat & HSRX_RISC_PAUSED) {
2742 if (unlikely(pci_channel_offline(ha->pdev)))
2743 break;
2744
2745 hccr = RD_REG_DWORD(&reg->hccr);
2746
2747 ql_log(ql_log_info, vha, 0x5050,
2748 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2749 hccr);
2750
2751 qla2xxx_check_risc_status(vha);
2752
2753 ha->isp_ops->fw_dump(vha, 1);
2754 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2755 break;
2756 } else if ((stat & HSRX_RISC_INT) == 0)
2757 break;
2758
2759 switch (stat & 0xff) {
2760 case INTR_ROM_MB_SUCCESS:
2761 case INTR_ROM_MB_FAILED:
2762 case INTR_MB_SUCCESS:
2763 case INTR_MB_FAILED:
2764 qla24xx_mbx_completion(vha, MSW(stat));
2765 status |= MBX_INTERRUPT;
2766
2767 break;
2768 case INTR_ASYNC_EVENT:
2769 mb[0] = MSW(stat);
2770 mb[1] = RD_REG_WORD(&reg->mailbox1);
2771 mb[2] = RD_REG_WORD(&reg->mailbox2);
2772 mb[3] = RD_REG_WORD(&reg->mailbox3);
2773 qla2x00_async_event(vha, rsp, mb);
2774 break;
2775 case INTR_RSP_QUE_UPDATE:
2776 case INTR_RSP_QUE_UPDATE_83XX:
2777 qla24xx_process_response_queue(vha, rsp);
2778 break;
2779 case INTR_ATIO_QUE_UPDATE:
2780 qlt_24xx_process_atio_queue(vha);
2781 break;
2782 case INTR_ATIO_RSP_QUE_UPDATE:
2783 qlt_24xx_process_atio_queue(vha);
2784 qla24xx_process_response_queue(vha, rsp);
2785 break;
2786 default:
2787 ql_dbg(ql_dbg_async, vha, 0x5051,
2788 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2789 break;
2790 }
2791 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2792 } while (0);
2793 qla2x00_handle_mbx_completion(ha, status);
2794 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2795
2796 return IRQ_HANDLED;
2797 }
2798
2799 /* Interrupt handling helpers. */
2800
2801 struct qla_init_msix_entry {
2802 const char *name;
2803 irq_handler_t handler;
2804 };
2805
2806 static struct qla_init_msix_entry msix_entries[3] = {
2807 { "qla2xxx (default)", qla24xx_msix_default },
2808 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2809 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2810 };
2811
2812 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2813 { "qla2xxx (default)", qla82xx_msix_default },
2814 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2815 };
2816
2817 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2818 { "qla2xxx (default)", qla24xx_msix_default },
2819 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2820 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2821 };
2822
2823 static void
2824 qla24xx_disable_msix(struct qla_hw_data *ha)
2825 {
2826 int i;
2827 struct qla_msix_entry *qentry;
2828 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2829
2830 for (i = 0; i < ha->msix_count; i++) {
2831 qentry = &ha->msix_entries[i];
2832 if (qentry->have_irq)
2833 free_irq(qentry->vector, qentry->rsp);
2834 }
2835 pci_disable_msix(ha->pdev);
2836 kfree(ha->msix_entries);
2837 ha->msix_entries = NULL;
2838 ha->flags.msix_enabled = 0;
2839 ql_dbg(ql_dbg_init, vha, 0x0042,
2840 "Disabled the MSI.\n");
2841 }
2842
2843 static int
2844 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2845 {
2846 #define MIN_MSIX_COUNT 2
2847 #define ATIO_VECTOR 2
2848 int i, ret;
2849 struct msix_entry *entries;
2850 struct qla_msix_entry *qentry;
2851 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2852
2853 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2854 GFP_KERNEL);
2855 if (!entries) {
2856 ql_log(ql_log_warn, vha, 0x00bc,
2857 "Failed to allocate memory for msix_entry.\n");
2858 return -ENOMEM;
2859 }
2860
2861 for (i = 0; i < ha->msix_count; i++)
2862 entries[i].entry = i;
2863
2864 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2865 if (ret) {
2866 if (ret < MIN_MSIX_COUNT)
2867 goto msix_failed;
2868
2869 ql_log(ql_log_warn, vha, 0x00c6,
2870 "MSI-X: Failed to enable support "
2871 "-- %d/%d\n Retry with %d vectors.\n",
2872 ha->msix_count, ret, ret);
2873 ha->msix_count = ret;
2874 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count);
2875 if (ret) {
2876 msix_failed:
2877 ql_log(ql_log_fatal, vha, 0x00c7,
2878 "MSI-X: Failed to enable support, "
2879 "giving up -- %d/%d.\n",
2880 ha->msix_count, ret);
2881 goto msix_out;
2882 }
2883 ha->max_rsp_queues = ha->msix_count - 1;
2884 }
2885 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2886 ha->msix_count, GFP_KERNEL);
2887 if (!ha->msix_entries) {
2888 ql_log(ql_log_fatal, vha, 0x00c8,
2889 "Failed to allocate memory for ha->msix_entries.\n");
2890 ret = -ENOMEM;
2891 goto msix_out;
2892 }
2893 ha->flags.msix_enabled = 1;
2894
2895 for (i = 0; i < ha->msix_count; i++) {
2896 qentry = &ha->msix_entries[i];
2897 qentry->vector = entries[i].vector;
2898 qentry->entry = entries[i].entry;
2899 qentry->have_irq = 0;
2900 qentry->rsp = NULL;
2901 }
2902
2903 /* Enable MSI-X vectors for the base queue */
2904 for (i = 0; i < 2; i++) {
2905 qentry = &ha->msix_entries[i];
2906 if (IS_P3P_TYPE(ha))
2907 ret = request_irq(qentry->vector,
2908 qla82xx_msix_entries[i].handler,
2909 0, qla82xx_msix_entries[i].name, rsp);
2910 else
2911 ret = request_irq(qentry->vector,
2912 msix_entries[i].handler,
2913 0, msix_entries[i].name, rsp);
2914 if (ret)
2915 goto msix_register_fail;
2916 qentry->have_irq = 1;
2917 qentry->rsp = rsp;
2918 rsp->msix = qentry;
2919 }
2920
2921 /*
2922 * If target mode is enable, also request the vector for the ATIO
2923 * queue.
2924 */
2925 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
2926 qentry = &ha->msix_entries[ATIO_VECTOR];
2927 ret = request_irq(qentry->vector,
2928 qla83xx_msix_entries[ATIO_VECTOR].handler,
2929 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
2930 qentry->have_irq = 1;
2931 qentry->rsp = rsp;
2932 rsp->msix = qentry;
2933 }
2934
2935 msix_register_fail:
2936 if (ret) {
2937 ql_log(ql_log_fatal, vha, 0x00cb,
2938 "MSI-X: unable to register handler -- %x/%d.\n",
2939 qentry->vector, ret);
2940 qla24xx_disable_msix(ha);
2941 ha->mqenable = 0;
2942 goto msix_out;
2943 }
2944
2945 /* Enable MSI-X vector for response queue update for queue 0 */
2946 if (IS_QLA83XX(ha)) {
2947 if (ha->msixbase && ha->mqiobase &&
2948 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2949 ha->mqenable = 1;
2950 } else
2951 if (ha->mqiobase
2952 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
2953 ha->mqenable = 1;
2954 ql_dbg(ql_dbg_multiq, vha, 0xc005,
2955 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2956 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2957 ql_dbg(ql_dbg_init, vha, 0x0055,
2958 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
2959 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
2960
2961 msix_out:
2962 kfree(entries);
2963 return ret;
2964 }
2965
2966 int
2967 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
2968 {
2969 int ret;
2970 device_reg_t __iomem *reg = ha->iobase;
2971 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2972
2973 /* If possible, enable MSI-X. */
2974 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
2975 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha))
2976 goto skip_msi;
2977
2978 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
2979 (ha->pdev->subsystem_device == 0x7040 ||
2980 ha->pdev->subsystem_device == 0x7041 ||
2981 ha->pdev->subsystem_device == 0x1705)) {
2982 ql_log(ql_log_warn, vha, 0x0034,
2983 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
2984 ha->pdev->subsystem_vendor,
2985 ha->pdev->subsystem_device);
2986 goto skip_msi;
2987 }
2988
2989 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
2990 ql_log(ql_log_warn, vha, 0x0035,
2991 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
2992 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
2993 goto skip_msix;
2994 }
2995
2996 ret = qla24xx_enable_msix(ha, rsp);
2997 if (!ret) {
2998 ql_dbg(ql_dbg_init, vha, 0x0036,
2999 "MSI-X: Enabled (0x%X, 0x%X).\n",
3000 ha->chip_revision, ha->fw_attributes);
3001 goto clear_risc_ints;
3002 }
3003 ql_log(ql_log_info, vha, 0x0037,
3004 "MSI-X Falling back-to MSI mode -%d.\n", ret);
3005 skip_msix:
3006
3007 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3008 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha))
3009 goto skip_msi;
3010
3011 ret = pci_enable_msi(ha->pdev);
3012 if (!ret) {
3013 ql_dbg(ql_dbg_init, vha, 0x0038,
3014 "MSI: Enabled.\n");
3015 ha->flags.msi_enabled = 1;
3016 } else
3017 ql_log(ql_log_warn, vha, 0x0039,
3018 "MSI-X; Falling back-to INTa mode -- %d.\n", ret);
3019
3020 /* Skip INTx on ISP82xx. */
3021 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3022 return QLA_FUNCTION_FAILED;
3023
3024 skip_msi:
3025
3026 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3027 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3028 QLA2XXX_DRIVER_NAME, rsp);
3029 if (ret) {
3030 ql_log(ql_log_warn, vha, 0x003a,
3031 "Failed to reserve interrupt %d already in use.\n",
3032 ha->pdev->irq);
3033 goto fail;
3034 } else if (!ha->flags.msi_enabled) {
3035 ql_dbg(ql_dbg_init, vha, 0x0125,
3036 "INTa mode: Enabled.\n");
3037 ha->flags.mr_intr_valid = 1;
3038 }
3039
3040 clear_risc_ints:
3041
3042 spin_lock_irq(&ha->hardware_lock);
3043 if (!IS_FWI2_CAPABLE(ha))
3044 WRT_REG_WORD(&reg->isp.semaphore, 0);
3045 spin_unlock_irq(&ha->hardware_lock);
3046
3047 fail:
3048 return ret;
3049 }
3050
3051 void
3052 qla2x00_free_irqs(scsi_qla_host_t *vha)
3053 {
3054 struct qla_hw_data *ha = vha->hw;
3055 struct rsp_que *rsp;
3056
3057 /*
3058 * We need to check that ha->rsp_q_map is valid in case we are called
3059 * from a probe failure context.
3060 */
3061 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3062 return;
3063 rsp = ha->rsp_q_map[0];
3064
3065 if (ha->flags.msix_enabled)
3066 qla24xx_disable_msix(ha);
3067 else if (ha->flags.msi_enabled) {
3068 free_irq(ha->pdev->irq, rsp);
3069 pci_disable_msi(ha->pdev);
3070 } else
3071 free_irq(ha->pdev->irq, rsp);
3072 }
3073
3074
3075 int qla25xx_request_irq(struct rsp_que *rsp)
3076 {
3077 struct qla_hw_data *ha = rsp->hw;
3078 struct qla_init_msix_entry *intr = &msix_entries[2];
3079 struct qla_msix_entry *msix = rsp->msix;
3080 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3081 int ret;
3082
3083 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3084 if (ret) {
3085 ql_log(ql_log_fatal, vha, 0x00e6,
3086 "MSI-X: Unable to register handler -- %x/%d.\n",
3087 msix->vector, ret);
3088 return ret;
3089 }
3090 msix->have_irq = 1;
3091 msix->rsp = rsp;
3092 return ret;
3093 }
Linux with added FPC-III support