?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
ARM: dts: add 'dr_mode' property to hsotg devices for exynos boards
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
bloba04a1b1f7f32d39e64856a04500b79c9d13bb52a
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 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
60 break;
61 if (hccr & HCCR_RISC_PAUSE) {
62 if (pci_channel_offline(ha->pdev))
63 break;
64
65 /*
66 * Issue a "HARD" reset in order for the RISC interrupt
67 * bit to be cleared. Schedule a big hammer to get
68 * out of the RISC PAUSED state.
69 */
70 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
71 RD_REG_WORD(&reg->hccr);
72
73 ha->isp_ops->fw_dump(vha, 1);
74 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
75 break;
76 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
77 break;
78
79 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
80 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
81 RD_REG_WORD(&reg->hccr);
82
83 /* Get mailbox data. */
84 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
85 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
86 qla2x00_mbx_completion(vha, mb[0]);
87 status |= MBX_INTERRUPT;
88 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
89 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
90 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
91 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
92 qla2x00_async_event(vha, rsp, mb);
93 } else {
94 /*EMPTY*/
95 ql_dbg(ql_dbg_async, vha, 0x5025,
96 "Unrecognized interrupt type (%d).\n",
97 mb[0]);
98 }
99 /* Release mailbox registers. */
100 WRT_REG_WORD(&reg->semaphore, 0);
101 RD_REG_WORD(&reg->semaphore);
102 } else {
103 qla2x00_process_response_queue(rsp);
104
105 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
106 RD_REG_WORD(&reg->hccr);
107 }
108 }
109 qla2x00_handle_mbx_completion(ha, status);
110 spin_unlock_irqrestore(&ha->hardware_lock, flags);
111
112 return (IRQ_HANDLED);
113 }
114
115 bool
116 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
117 {
118 /* Check for PCI disconnection */
119 if (reg == 0xffffffff) {
120 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
121 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
122 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
123 /*
124 * Schedule this (only once) on the default system
125 * workqueue so that all the adapter workqueues and the
126 * DPC thread can be shutdown cleanly.
127 */
128 schedule_work(&vha->hw->board_disable);
129 }
130 return true;
131 } else
132 return false;
133 }
134
135 bool
136 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
137 {
138 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
139 }
140
141 /**
142 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
143 * @irq:
144 * @dev_id: SCSI driver HA context
145 *
146 * Called by system whenever the host adapter generates an interrupt.
147 *
148 * Returns handled flag.
149 */
150 irqreturn_t
151 qla2300_intr_handler(int irq, void *dev_id)
152 {
153 scsi_qla_host_t *vha;
154 struct device_reg_2xxx __iomem *reg;
155 int status;
156 unsigned long iter;
157 uint32_t stat;
158 uint16_t hccr;
159 uint16_t mb[4];
160 struct rsp_que *rsp;
161 struct qla_hw_data *ha;
162 unsigned long flags;
163
164 rsp = (struct rsp_que *) dev_id;
165 if (!rsp) {
166 ql_log(ql_log_info, NULL, 0x5058,
167 "%s: NULL response queue pointer.\n", __func__);
168 return (IRQ_NONE);
169 }
170
171 ha = rsp->hw;
172 reg = &ha->iobase->isp;
173 status = 0;
174
175 spin_lock_irqsave(&ha->hardware_lock, flags);
176 vha = pci_get_drvdata(ha->pdev);
177 for (iter = 50; iter--; ) {
178 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
179 if (qla2x00_check_reg32_for_disconnect(vha, stat))
180 break;
181 if (stat & HSR_RISC_PAUSED) {
182 if (unlikely(pci_channel_offline(ha->pdev)))
183 break;
184
185 hccr = RD_REG_WORD(&reg->hccr);
186
187 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
188 ql_log(ql_log_warn, vha, 0x5026,
189 "Parity error -- HCCR=%x, Dumping "
190 "firmware.\n", hccr);
191 else
192 ql_log(ql_log_warn, vha, 0x5027,
193 "RISC paused -- HCCR=%x, Dumping "
194 "firmware.\n", hccr);
195
196 /*
197 * Issue a "HARD" reset in order for the RISC
198 * interrupt bit to be cleared. Schedule a big
199 * hammer to get out of the RISC PAUSED state.
200 */
201 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
202 RD_REG_WORD(&reg->hccr);
203
204 ha->isp_ops->fw_dump(vha, 1);
205 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
206 break;
207 } else if ((stat & HSR_RISC_INT) == 0)
208 break;
209
210 switch (stat & 0xff) {
211 case 0x1:
212 case 0x2:
213 case 0x10:
214 case 0x11:
215 qla2x00_mbx_completion(vha, MSW(stat));
216 status |= MBX_INTERRUPT;
217
218 /* Release mailbox registers. */
219 WRT_REG_WORD(&reg->semaphore, 0);
220 break;
221 case 0x12:
222 mb[0] = MSW(stat);
223 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
224 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
225 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
226 qla2x00_async_event(vha, rsp, mb);
227 break;
228 case 0x13:
229 qla2x00_process_response_queue(rsp);
230 break;
231 case 0x15:
232 mb[0] = MBA_CMPLT_1_16BIT;
233 mb[1] = MSW(stat);
234 qla2x00_async_event(vha, rsp, mb);
235 break;
236 case 0x16:
237 mb[0] = MBA_SCSI_COMPLETION;
238 mb[1] = MSW(stat);
239 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
240 qla2x00_async_event(vha, rsp, mb);
241 break;
242 default:
243 ql_dbg(ql_dbg_async, vha, 0x5028,
244 "Unrecognized interrupt type (%d).\n", stat & 0xff);
245 break;
246 }
247 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
248 RD_REG_WORD_RELAXED(&reg->hccr);
249 }
250 qla2x00_handle_mbx_completion(ha, status);
251 spin_unlock_irqrestore(&ha->hardware_lock, flags);
252
253 return (IRQ_HANDLED);
254 }
255
256 /**
257 * qla2x00_mbx_completion() - Process mailbox command completions.
258 * @ha: SCSI driver HA context
259 * @mb0: Mailbox0 register
260 */
261 static void
262 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
263 {
264 uint16_t cnt;
265 uint32_t mboxes;
266 uint16_t __iomem *wptr;
267 struct qla_hw_data *ha = vha->hw;
268 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
269
270 /* Read all mbox registers? */
271 mboxes = (1 << ha->mbx_count) - 1;
272 if (!ha->mcp)
273 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
274 else
275 mboxes = ha->mcp->in_mb;
276
277 /* Load return mailbox registers. */
278 ha->flags.mbox_int = 1;
279 ha->mailbox_out[0] = mb0;
280 mboxes >>= 1;
281 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
282
283 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
284 if (IS_QLA2200(ha) && cnt == 8)
285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
286 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
287 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
288 else if (mboxes & BIT_0)
289 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
290
291 wptr++;
292 mboxes >>= 1;
293 }
294 }
295
296 static void
297 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
298 {
299 static char *event[] =
300 { "Complete", "Request Notification", "Time Extension" };
301 int rval;
302 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
303 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
304 uint16_t __iomem *wptr;
305 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
306
307 /* Seed data -- mailbox1 -> mailbox7. */
308 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
309 wptr = (uint16_t __iomem *)&reg24->mailbox1;
310 else if (IS_QLA8044(vha->hw))
311 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
312 else
313 return;
314
315 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
316 mb[cnt] = RD_REG_WORD(wptr);
317
318 ql_dbg(ql_dbg_async, vha, 0x5021,
319 "Inter-Driver Communication %s -- "
320 "%04x %04x %04x %04x %04x %04x %04x.\n",
321 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
322 mb[4], mb[5], mb[6]);
323 switch (aen) {
324 /* Handle IDC Error completion case. */
325 case MBA_IDC_COMPLETE:
326 if (mb[1] >> 15) {
327 vha->hw->flags.idc_compl_status = 1;
328 if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
329 complete(&vha->hw->dcbx_comp);
330 }
331 break;
332
333 case MBA_IDC_NOTIFY:
334 /* Acknowledgement needed? [Notify && non-zero timeout]. */
335 timeout = (descr >> 8) & 0xf;
336 ql_dbg(ql_dbg_async, vha, 0x5022,
337 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
338 vha->host_no, event[aen & 0xff], timeout);
339
340 if (!timeout)
341 return;
342 rval = qla2x00_post_idc_ack_work(vha, mb);
343 if (rval != QLA_SUCCESS)
344 ql_log(ql_log_warn, vha, 0x5023,
345 "IDC failed to post ACK.\n");
346 break;
347 case MBA_IDC_TIME_EXT:
348 vha->hw->idc_extend_tmo = descr;
349 ql_dbg(ql_dbg_async, vha, 0x5087,
350 "%lu Inter-Driver Communication %s -- "
351 "Extend timeout by=%d.\n",
352 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
353 break;
354 }
355 }
356
357 #define LS_UNKNOWN 2
358 const char *
359 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
360 {
361 static const char *const link_speeds[] = {
362 "1", "2", "?", "4", "8", "16", "32", "10"
363 };
364 #define QLA_LAST_SPEED 7
365
366 if (IS_QLA2100(ha) || IS_QLA2200(ha))
367 return link_speeds[0];
368 else if (speed == 0x13)
369 return link_speeds[QLA_LAST_SPEED];
370 else if (speed < QLA_LAST_SPEED)
371 return link_speeds[speed];
372 else
373 return link_speeds[LS_UNKNOWN];
374 }
375
376 static void
377 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
378 {
379 struct qla_hw_data *ha = vha->hw;
380
381 /*
382 * 8200 AEN Interpretation:
383 * mb[0] = AEN code
384 * mb[1] = AEN Reason code
385 * mb[2] = LSW of Peg-Halt Status-1 Register
386 * mb[6] = MSW of Peg-Halt Status-1 Register
387 * mb[3] = LSW of Peg-Halt Status-2 register
388 * mb[7] = MSW of Peg-Halt Status-2 register
389 * mb[4] = IDC Device-State Register value
390 * mb[5] = IDC Driver-Presence Register value
391 */
392 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
393 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
394 mb[0], mb[1], mb[2], mb[6]);
395 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
396 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
397 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
398
399 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
400 IDC_HEARTBEAT_FAILURE)) {
401 ha->flags.nic_core_hung = 1;
402 ql_log(ql_log_warn, vha, 0x5060,
403 "83XX: F/W Error Reported: Check if reset required.\n");
404
405 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
406 uint32_t protocol_engine_id, fw_err_code, err_level;
407
408 /*
409 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
410 * - PEG-Halt Status-1 Register:
411 * (LSW = mb[2], MSW = mb[6])
412 * Bits 0-7 = protocol-engine ID
413 * Bits 8-28 = f/w error code
414 * Bits 29-31 = Error-level
415 * Error-level 0x1 = Non-Fatal error
416 * Error-level 0x2 = Recoverable Fatal error
417 * Error-level 0x4 = UnRecoverable Fatal error
418 * - PEG-Halt Status-2 Register:
419 * (LSW = mb[3], MSW = mb[7])
420 */
421 protocol_engine_id = (mb[2] & 0xff);
422 fw_err_code = (((mb[2] & 0xff00) >> 8) |
423 ((mb[6] & 0x1fff) << 8));
424 err_level = ((mb[6] & 0xe000) >> 13);
425 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
426 "Register: protocol_engine_id=0x%x "
427 "fw_err_code=0x%x err_level=0x%x.\n",
428 protocol_engine_id, fw_err_code, err_level);
429 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
430 "Register: 0x%x%x.\n", mb[7], mb[3]);
431 if (err_level == ERR_LEVEL_NON_FATAL) {
432 ql_log(ql_log_warn, vha, 0x5063,
433 "Not a fatal error, f/w has recovered "
434 "iteself.\n");
435 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
436 ql_log(ql_log_fatal, vha, 0x5064,
437 "Recoverable Fatal error: Chip reset "
438 "required.\n");
439 qla83xx_schedule_work(vha,
440 QLA83XX_NIC_CORE_RESET);
441 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
442 ql_log(ql_log_fatal, vha, 0x5065,
443 "Unrecoverable Fatal error: Set FAILED "
444 "state, reboot required.\n");
445 qla83xx_schedule_work(vha,
446 QLA83XX_NIC_CORE_UNRECOVERABLE);
447 }
448 }
449
450 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
451 uint16_t peg_fw_state, nw_interface_link_up;
452 uint16_t nw_interface_signal_detect, sfp_status;
453 uint16_t htbt_counter, htbt_monitor_enable;
454 uint16_t sfp_additonal_info, sfp_multirate;
455 uint16_t sfp_tx_fault, link_speed, dcbx_status;
456
457 /*
458 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
459 * - PEG-to-FC Status Register:
460 * (LSW = mb[2], MSW = mb[6])
461 * Bits 0-7 = Peg-Firmware state
462 * Bit 8 = N/W Interface Link-up
463 * Bit 9 = N/W Interface signal detected
464 * Bits 10-11 = SFP Status
465 * SFP Status 0x0 = SFP+ transceiver not expected
466 * SFP Status 0x1 = SFP+ transceiver not present
467 * SFP Status 0x2 = SFP+ transceiver invalid
468 * SFP Status 0x3 = SFP+ transceiver present and
469 * valid
470 * Bits 12-14 = Heartbeat Counter
471 * Bit 15 = Heartbeat Monitor Enable
472 * Bits 16-17 = SFP Additional Info
473 * SFP info 0x0 = Unregocnized transceiver for
474 * Ethernet
475 * SFP info 0x1 = SFP+ brand validation failed
476 * SFP info 0x2 = SFP+ speed validation failed
477 * SFP info 0x3 = SFP+ access error
478 * Bit 18 = SFP Multirate
479 * Bit 19 = SFP Tx Fault
480 * Bits 20-22 = Link Speed
481 * Bits 23-27 = Reserved
482 * Bits 28-30 = DCBX Status
483 * DCBX Status 0x0 = DCBX Disabled
484 * DCBX Status 0x1 = DCBX Enabled
485 * DCBX Status 0x2 = DCBX Exchange error
486 * Bit 31 = Reserved
487 */
488 peg_fw_state = (mb[2] & 0x00ff);
489 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
490 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
491 sfp_status = ((mb[2] & 0x0c00) >> 10);
492 htbt_counter = ((mb[2] & 0x7000) >> 12);
493 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
494 sfp_additonal_info = (mb[6] & 0x0003);
495 sfp_multirate = ((mb[6] & 0x0004) >> 2);
496 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
497 link_speed = ((mb[6] & 0x0070) >> 4);
498 dcbx_status = ((mb[6] & 0x7000) >> 12);
499
500 ql_log(ql_log_warn, vha, 0x5066,
501 "Peg-to-Fc Status Register:\n"
502 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
503 "nw_interface_signal_detect=0x%x"
504 "\nsfp_statis=0x%x.\n ", peg_fw_state,
505 nw_interface_link_up, nw_interface_signal_detect,
506 sfp_status);
507 ql_log(ql_log_warn, vha, 0x5067,
508 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
509 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
510 htbt_counter, htbt_monitor_enable,
511 sfp_additonal_info, sfp_multirate);
512 ql_log(ql_log_warn, vha, 0x5068,
513 "sfp_tx_fault=0x%x, link_state=0x%x, "
514 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
515 dcbx_status);
516
517 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
518 }
519
520 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
521 ql_log(ql_log_warn, vha, 0x5069,
522 "Heartbeat Failure encountered, chip reset "
523 "required.\n");
524
525 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
526 }
527 }
528
529 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
530 ql_log(ql_log_info, vha, 0x506a,
531 "IDC Device-State changed = 0x%x.\n", mb[4]);
532 if (ha->flags.nic_core_reset_owner)
533 return;
534 qla83xx_schedule_work(vha, MBA_IDC_AEN);
535 }
536 }
537
538 int
539 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
540 {
541 struct qla_hw_data *ha = vha->hw;
542 scsi_qla_host_t *vp;
543 uint32_t vp_did;
544 unsigned long flags;
545 int ret = 0;
546
547 if (!ha->num_vhosts)
548 return ret;
549
550 spin_lock_irqsave(&ha->vport_slock, flags);
551 list_for_each_entry(vp, &ha->vp_list, list) {
552 vp_did = vp->d_id.b24;
553 if (vp_did == rscn_entry) {
554 ret = 1;
555 break;
556 }
557 }
558 spin_unlock_irqrestore(&ha->vport_slock, flags);
559
560 return ret;
561 }
562
563 /**
564 * qla2x00_async_event() - Process aynchronous events.
565 * @ha: SCSI driver HA context
566 * @mb: Mailbox registers (0 - 3)
567 */
568 void
569 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
570 {
571 uint16_t handle_cnt;
572 uint16_t cnt, mbx;
573 uint32_t handles[5];
574 struct qla_hw_data *ha = vha->hw;
575 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
576 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
577 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
578 uint32_t rscn_entry, host_pid, tmp_pid;
579 unsigned long flags;
580 fc_port_t *fcport = NULL;
581
582 /* Setup to process RIO completion. */
583 handle_cnt = 0;
584 if (IS_CNA_CAPABLE(ha))
585 goto skip_rio;
586 switch (mb[0]) {
587 case MBA_SCSI_COMPLETION:
588 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
589 handle_cnt = 1;
590 break;
591 case MBA_CMPLT_1_16BIT:
592 handles[0] = mb[1];
593 handle_cnt = 1;
594 mb[0] = MBA_SCSI_COMPLETION;
595 break;
596 case MBA_CMPLT_2_16BIT:
597 handles[0] = mb[1];
598 handles[1] = mb[2];
599 handle_cnt = 2;
600 mb[0] = MBA_SCSI_COMPLETION;
601 break;
602 case MBA_CMPLT_3_16BIT:
603 handles[0] = mb[1];
604 handles[1] = mb[2];
605 handles[2] = mb[3];
606 handle_cnt = 3;
607 mb[0] = MBA_SCSI_COMPLETION;
608 break;
609 case MBA_CMPLT_4_16BIT:
610 handles[0] = mb[1];
611 handles[1] = mb[2];
612 handles[2] = mb[3];
613 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
614 handle_cnt = 4;
615 mb[0] = MBA_SCSI_COMPLETION;
616 break;
617 case MBA_CMPLT_5_16BIT:
618 handles[0] = mb[1];
619 handles[1] = mb[2];
620 handles[2] = mb[3];
621 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
622 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
623 handle_cnt = 5;
624 mb[0] = MBA_SCSI_COMPLETION;
625 break;
626 case MBA_CMPLT_2_32BIT:
627 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
628 handles[1] = le32_to_cpu(
629 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
630 RD_MAILBOX_REG(ha, reg, 6));
631 handle_cnt = 2;
632 mb[0] = MBA_SCSI_COMPLETION;
633 break;
634 default:
635 break;
636 }
637 skip_rio:
638 switch (mb[0]) {
639 case MBA_SCSI_COMPLETION: /* Fast Post */
640 if (!vha->flags.online)
641 break;
642
643 for (cnt = 0; cnt < handle_cnt; cnt++)
644 qla2x00_process_completed_request(vha, rsp->req,
645 handles[cnt]);
646 break;
647
648 case MBA_RESET: /* Reset */
649 ql_dbg(ql_dbg_async, vha, 0x5002,
650 "Asynchronous RESET.\n");
651
652 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
653 break;
654
655 case MBA_SYSTEM_ERR: /* System Error */
656 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
657 RD_REG_WORD(&reg24->mailbox7) : 0;
658 ql_log(ql_log_warn, vha, 0x5003,
659 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
660 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
661
662 ha->isp_ops->fw_dump(vha, 1);
663
664 if (IS_FWI2_CAPABLE(ha)) {
665 if (mb[1] == 0 && mb[2] == 0) {
666 ql_log(ql_log_fatal, vha, 0x5004,
667 "Unrecoverable Hardware Error: adapter "
668 "marked OFFLINE!\n");
669 vha->flags.online = 0;
670 vha->device_flags |= DFLG_DEV_FAILED;
671 } else {
672 /* Check to see if MPI timeout occurred */
673 if ((mbx & MBX_3) && (ha->port_no == 0))
674 set_bit(MPI_RESET_NEEDED,
675 &vha->dpc_flags);
676
677 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
678 }
679 } else if (mb[1] == 0) {
680 ql_log(ql_log_fatal, vha, 0x5005,
681 "Unrecoverable Hardware Error: adapter marked "
682 "OFFLINE!\n");
683 vha->flags.online = 0;
684 vha->device_flags |= DFLG_DEV_FAILED;
685 } else
686 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
687 break;
688
689 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
690 ql_log(ql_log_warn, vha, 0x5006,
691 "ISP Request Transfer Error (%x).\n", mb[1]);
692
693 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
694 break;
695
696 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
697 ql_log(ql_log_warn, vha, 0x5007,
698 "ISP Response Transfer Error.\n");
699
700 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
701 break;
702
703 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
704 ql_dbg(ql_dbg_async, vha, 0x5008,
705 "Asynchronous WAKEUP_THRES.\n");
706
707 break;
708 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
709 ql_dbg(ql_dbg_async, vha, 0x5009,
710 "LIP occurred (%x).\n", mb[1]);
711
712 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
713 atomic_set(&vha->loop_state, LOOP_DOWN);
714 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
715 qla2x00_mark_all_devices_lost(vha, 1);
716 }
717
718 if (vha->vp_idx) {
719 atomic_set(&vha->vp_state, VP_FAILED);
720 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
721 }
722
723 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
724 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
725
726 vha->flags.management_server_logged_in = 0;
727 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
728 break;
729
730 case MBA_LOOP_UP: /* Loop Up Event */
731 if (IS_QLA2100(ha) || IS_QLA2200(ha))
732 ha->link_data_rate = PORT_SPEED_1GB;
733 else
734 ha->link_data_rate = mb[1];
735
736 ql_log(ql_log_info, vha, 0x500a,
737 "LOOP UP detected (%s Gbps).\n",
738 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
739
740 vha->flags.management_server_logged_in = 0;
741 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
742 break;
743
744 case MBA_LOOP_DOWN: /* Loop Down Event */
745 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
746 ? RD_REG_WORD(&reg24->mailbox4) : 0;
747 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
748 : mbx;
749 ql_log(ql_log_info, vha, 0x500b,
750 "LOOP DOWN detected (%x %x %x %x).\n",
751 mb[1], mb[2], mb[3], mbx);
752
753 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
754 atomic_set(&vha->loop_state, LOOP_DOWN);
755 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
756 /*
757 * In case of loop down, restore WWPN from
758 * NVRAM in case of FA-WWPN capable ISP
759 */
760 if (ha->flags.fawwpn_enabled) {
761 void *wwpn = ha->init_cb->port_name;
762
763 memcpy(vha->port_name, wwpn, WWN_SIZE);
764 }
765
766 vha->device_flags |= DFLG_NO_CABLE;
767 qla2x00_mark_all_devices_lost(vha, 1);
768 }
769
770 if (vha->vp_idx) {
771 atomic_set(&vha->vp_state, VP_FAILED);
772 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
773 }
774
775 vha->flags.management_server_logged_in = 0;
776 ha->link_data_rate = PORT_SPEED_UNKNOWN;
777 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
778 break;
779
780 case MBA_LIP_RESET: /* LIP reset occurred */
781 ql_dbg(ql_dbg_async, vha, 0x500c,
782 "LIP reset occurred (%x).\n", mb[1]);
783
784 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
785 atomic_set(&vha->loop_state, LOOP_DOWN);
786 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
787 qla2x00_mark_all_devices_lost(vha, 1);
788 }
789
790 if (vha->vp_idx) {
791 atomic_set(&vha->vp_state, VP_FAILED);
792 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
793 }
794
795 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
796
797 ha->operating_mode = LOOP;
798 vha->flags.management_server_logged_in = 0;
799 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
800 break;
801
802 /* case MBA_DCBX_COMPLETE: */
803 case MBA_POINT_TO_POINT: /* Point-to-Point */
804 if (IS_QLA2100(ha))
805 break;
806
807 if (IS_CNA_CAPABLE(ha)) {
808 ql_dbg(ql_dbg_async, vha, 0x500d,
809 "DCBX Completed -- %04x %04x %04x.\n",
810 mb[1], mb[2], mb[3]);
811 if (ha->notify_dcbx_comp && !vha->vp_idx)
812 complete(&ha->dcbx_comp);
813
814 } else
815 ql_dbg(ql_dbg_async, vha, 0x500e,
816 "Asynchronous P2P MODE received.\n");
817
818 /*
819 * Until there's a transition from loop down to loop up, treat
820 * this as loop down only.
821 */
822 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
823 atomic_set(&vha->loop_state, LOOP_DOWN);
824 if (!atomic_read(&vha->loop_down_timer))
825 atomic_set(&vha->loop_down_timer,
826 LOOP_DOWN_TIME);
827 qla2x00_mark_all_devices_lost(vha, 1);
828 }
829
830 if (vha->vp_idx) {
831 atomic_set(&vha->vp_state, VP_FAILED);
832 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
833 }
834
835 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
836 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
837
838 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
839 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
840
841 ha->flags.gpsc_supported = 1;
842 vha->flags.management_server_logged_in = 0;
843 break;
844
845 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
846 if (IS_QLA2100(ha))
847 break;
848
849 ql_dbg(ql_dbg_async, vha, 0x500f,
850 "Configuration change detected: value=%x.\n", mb[1]);
851
852 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
853 atomic_set(&vha->loop_state, LOOP_DOWN);
854 if (!atomic_read(&vha->loop_down_timer))
855 atomic_set(&vha->loop_down_timer,
856 LOOP_DOWN_TIME);
857 qla2x00_mark_all_devices_lost(vha, 1);
858 }
859
860 if (vha->vp_idx) {
861 atomic_set(&vha->vp_state, VP_FAILED);
862 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
863 }
864
865 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
866 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
867 break;
868
869 case MBA_PORT_UPDATE: /* Port database update */
870 /*
871 * Handle only global and vn-port update events
872 *
873 * Relevant inputs:
874 * mb[1] = N_Port handle of changed port
875 * OR 0xffff for global event
876 * mb[2] = New login state
877 * 7 = Port logged out
878 * mb[3] = LSB is vp_idx, 0xff = all vps
879 *
880 * Skip processing if:
881 * Event is global, vp_idx is NOT all vps,
882 * vp_idx does not match
883 * Event is not global, vp_idx does not match
884 */
885 if (IS_QLA2XXX_MIDTYPE(ha) &&
886 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
887 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
888 break;
889
890 /* Global event -- port logout or port unavailable. */
891 if (mb[1] == 0xffff && mb[2] == 0x7) {
892 ql_dbg(ql_dbg_async, vha, 0x5010,
893 "Port unavailable %04x %04x %04x.\n",
894 mb[1], mb[2], mb[3]);
895 ql_log(ql_log_warn, vha, 0x505e,
896 "Link is offline.\n");
897
898 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
899 atomic_set(&vha->loop_state, LOOP_DOWN);
900 atomic_set(&vha->loop_down_timer,
901 LOOP_DOWN_TIME);
902 vha->device_flags |= DFLG_NO_CABLE;
903 qla2x00_mark_all_devices_lost(vha, 1);
904 }
905
906 if (vha->vp_idx) {
907 atomic_set(&vha->vp_state, VP_FAILED);
908 fc_vport_set_state(vha->fc_vport,
909 FC_VPORT_FAILED);
910 qla2x00_mark_all_devices_lost(vha, 1);
911 }
912
913 vha->flags.management_server_logged_in = 0;
914 ha->link_data_rate = PORT_SPEED_UNKNOWN;
915 break;
916 }
917
918 /*
919 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
920 * event etc. earlier indicating loop is down) then process
921 * it. Otherwise ignore it and Wait for RSCN to come in.
922 */
923 atomic_set(&vha->loop_down_timer, 0);
924 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
925 atomic_read(&vha->loop_state) != LOOP_DEAD) {
926 ql_dbg(ql_dbg_async, vha, 0x5011,
927 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
928 mb[1], mb[2], mb[3]);
929
930 qlt_async_event(mb[0], vha, mb);
931 break;
932 }
933
934 ql_dbg(ql_dbg_async, vha, 0x5012,
935 "Port database changed %04x %04x %04x.\n",
936 mb[1], mb[2], mb[3]);
937
938 /*
939 * Mark all devices as missing so we will login again.
940 */
941 atomic_set(&vha->loop_state, LOOP_UP);
942
943 qla2x00_mark_all_devices_lost(vha, 1);
944
945 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
946 set_bit(SCR_PENDING, &vha->dpc_flags);
947
948 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
949 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
950
951 qlt_async_event(mb[0], vha, mb);
952 break;
953
954 case MBA_RSCN_UPDATE: /* State Change Registration */
955 /* Check if the Vport has issued a SCR */
956 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
957 break;
958 /* Only handle SCNs for our Vport index. */
959 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
960 break;
961
962 ql_dbg(ql_dbg_async, vha, 0x5013,
963 "RSCN database changed -- %04x %04x %04x.\n",
964 mb[1], mb[2], mb[3]);
965
966 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
967 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
968 | vha->d_id.b.al_pa;
969 if (rscn_entry == host_pid) {
970 ql_dbg(ql_dbg_async, vha, 0x5014,
971 "Ignoring RSCN update to local host "
972 "port ID (%06x).\n", host_pid);
973 break;
974 }
975
976 /* Ignore reserved bits from RSCN-payload. */
977 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
978
979 /* Skip RSCNs for virtual ports on the same physical port */
980 if (qla2x00_is_a_vp_did(vha, rscn_entry))
981 break;
982
983 /*
984 * Search for the rport related to this RSCN entry and mark it
985 * as lost.
986 */
987 list_for_each_entry(fcport, &vha->vp_fcports, list) {
988 if (atomic_read(&fcport->state) != FCS_ONLINE)
989 continue;
990 tmp_pid = fcport->d_id.b24;
991 if (fcport->d_id.b24 == rscn_entry) {
992 qla2x00_mark_device_lost(vha, fcport, 0, 0);
993 break;
994 }
995 }
996
997 atomic_set(&vha->loop_down_timer, 0);
998 vha->flags.management_server_logged_in = 0;
999
1000 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1001 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1002 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1003 break;
1004
1005 /* case MBA_RIO_RESPONSE: */
1006 case MBA_ZIO_RESPONSE:
1007 ql_dbg(ql_dbg_async, vha, 0x5015,
1008 "[R|Z]IO update completion.\n");
1009
1010 if (IS_FWI2_CAPABLE(ha))
1011 qla24xx_process_response_queue(vha, rsp);
1012 else
1013 qla2x00_process_response_queue(rsp);
1014 break;
1015
1016 case MBA_DISCARD_RND_FRAME:
1017 ql_dbg(ql_dbg_async, vha, 0x5016,
1018 "Discard RND Frame -- %04x %04x %04x.\n",
1019 mb[1], mb[2], mb[3]);
1020 break;
1021
1022 case MBA_TRACE_NOTIFICATION:
1023 ql_dbg(ql_dbg_async, vha, 0x5017,
1024 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1025 break;
1026
1027 case MBA_ISP84XX_ALERT:
1028 ql_dbg(ql_dbg_async, vha, 0x5018,
1029 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1030 mb[1], mb[2], mb[3]);
1031
1032 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1033 switch (mb[1]) {
1034 case A84_PANIC_RECOVERY:
1035 ql_log(ql_log_info, vha, 0x5019,
1036 "Alert 84XX: panic recovery %04x %04x.\n",
1037 mb[2], mb[3]);
1038 break;
1039 case A84_OP_LOGIN_COMPLETE:
1040 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1041 ql_log(ql_log_info, vha, 0x501a,
1042 "Alert 84XX: firmware version %x.\n",
1043 ha->cs84xx->op_fw_version);
1044 break;
1045 case A84_DIAG_LOGIN_COMPLETE:
1046 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1047 ql_log(ql_log_info, vha, 0x501b,
1048 "Alert 84XX: diagnostic firmware version %x.\n",
1049 ha->cs84xx->diag_fw_version);
1050 break;
1051 case A84_GOLD_LOGIN_COMPLETE:
1052 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1053 ha->cs84xx->fw_update = 1;
1054 ql_log(ql_log_info, vha, 0x501c,
1055 "Alert 84XX: gold firmware version %x.\n",
1056 ha->cs84xx->gold_fw_version);
1057 break;
1058 default:
1059 ql_log(ql_log_warn, vha, 0x501d,
1060 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1061 mb[1], mb[2], mb[3]);
1062 }
1063 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1064 break;
1065 case MBA_DCBX_START:
1066 ql_dbg(ql_dbg_async, vha, 0x501e,
1067 "DCBX Started -- %04x %04x %04x.\n",
1068 mb[1], mb[2], mb[3]);
1069 break;
1070 case MBA_DCBX_PARAM_UPDATE:
1071 ql_dbg(ql_dbg_async, vha, 0x501f,
1072 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1073 mb[1], mb[2], mb[3]);
1074 break;
1075 case MBA_FCF_CONF_ERR:
1076 ql_dbg(ql_dbg_async, vha, 0x5020,
1077 "FCF Configuration Error -- %04x %04x %04x.\n",
1078 mb[1], mb[2], mb[3]);
1079 break;
1080 case MBA_IDC_NOTIFY:
1081 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1082 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1083 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1084 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1085 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1086 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1087 /*
1088 * Extend loop down timer since port is active.
1089 */
1090 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1091 atomic_set(&vha->loop_down_timer,
1092 LOOP_DOWN_TIME);
1093 qla2xxx_wake_dpc(vha);
1094 }
1095 }
1096 case MBA_IDC_COMPLETE:
1097 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1098 complete(&ha->lb_portup_comp);
1099 /* Fallthru */
1100 case MBA_IDC_TIME_EXT:
1101 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1102 IS_QLA8044(ha))
1103 qla81xx_idc_event(vha, mb[0], mb[1]);
1104 break;
1105
1106 case MBA_IDC_AEN:
1107 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1108 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1109 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1110 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1111 qla83xx_handle_8200_aen(vha, mb);
1112 break;
1113
1114 case MBA_DPORT_DIAGNOSTICS:
1115 ql_dbg(ql_dbg_async, vha, 0x5052,
1116 "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
1117 mb[1] == 0 ? "start" :
1118 mb[1] == 1 ? "done (ok)" :
1119 mb[1] == 2 ? "done (error)" : "other");
1120 break;
1121
1122 default:
1123 ql_dbg(ql_dbg_async, vha, 0x5057,
1124 "Unknown AEN:%04x %04x %04x %04x\n",
1125 mb[0], mb[1], mb[2], mb[3]);
1126 }
1127
1128 qlt_async_event(mb[0], vha, mb);
1129
1130 if (!vha->vp_idx && ha->num_vhosts)
1131 qla2x00_alert_all_vps(rsp, mb);
1132 }
1133
1134 /**
1135 * qla2x00_process_completed_request() - Process a Fast Post response.
1136 * @ha: SCSI driver HA context
1137 * @index: SRB index
1138 */
1139 void
1140 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1141 struct req_que *req, uint32_t index)
1142 {
1143 srb_t *sp;
1144 struct qla_hw_data *ha = vha->hw;
1145
1146 /* Validate handle. */
1147 if (index >= req->num_outstanding_cmds) {
1148 ql_log(ql_log_warn, vha, 0x3014,
1149 "Invalid SCSI command index (%x).\n", index);
1150
1151 if (IS_P3P_TYPE(ha))
1152 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1153 else
1154 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1155 return;
1156 }
1157
1158 sp = req->outstanding_cmds[index];
1159 if (sp) {
1160 /* Free outstanding command slot. */
1161 req->outstanding_cmds[index] = NULL;
1162
1163 /* Save ISP completion status */
1164 sp->done(ha, sp, DID_OK << 16);
1165 } else {
1166 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1167
1168 if (IS_P3P_TYPE(ha))
1169 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1170 else
1171 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1172 }
1173 }
1174
1175 srb_t *
1176 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1177 struct req_que *req, void *iocb)
1178 {
1179 struct qla_hw_data *ha = vha->hw;
1180 sts_entry_t *pkt = iocb;
1181 srb_t *sp = NULL;
1182 uint16_t index;
1183
1184 index = LSW(pkt->handle);
1185 if (index >= req->num_outstanding_cmds) {
1186 ql_log(ql_log_warn, vha, 0x5031,
1187 "Invalid command index (%x).\n", index);
1188 if (IS_P3P_TYPE(ha))
1189 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1190 else
1191 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1192 goto done;
1193 }
1194 sp = req->outstanding_cmds[index];
1195 if (!sp) {
1196 ql_log(ql_log_warn, vha, 0x5032,
1197 "Invalid completion handle (%x) -- timed-out.\n", index);
1198 return sp;
1199 }
1200 if (sp->handle != index) {
1201 ql_log(ql_log_warn, vha, 0x5033,
1202 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1203 return NULL;
1204 }
1205
1206 req->outstanding_cmds[index] = NULL;
1207
1208 done:
1209 return sp;
1210 }
1211
1212 static void
1213 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1214 struct mbx_entry *mbx)
1215 {
1216 const char func[] = "MBX-IOCB";
1217 const char *type;
1218 fc_port_t *fcport;
1219 srb_t *sp;
1220 struct srb_iocb *lio;
1221 uint16_t *data;
1222 uint16_t status;
1223
1224 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1225 if (!sp)
1226 return;
1227
1228 lio = &sp->u.iocb_cmd;
1229 type = sp->name;
1230 fcport = sp->fcport;
1231 data = lio->u.logio.data;
1232
1233 data[0] = MBS_COMMAND_ERROR;
1234 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1235 QLA_LOGIO_LOGIN_RETRIED : 0;
1236 if (mbx->entry_status) {
1237 ql_dbg(ql_dbg_async, vha, 0x5043,
1238 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1239 "entry-status=%x status=%x state-flag=%x "
1240 "status-flags=%x.\n", type, sp->handle,
1241 fcport->d_id.b.domain, fcport->d_id.b.area,
1242 fcport->d_id.b.al_pa, mbx->entry_status,
1243 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1244 le16_to_cpu(mbx->status_flags));
1245
1246 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1247 (uint8_t *)mbx, sizeof(*mbx));
1248
1249 goto logio_done;
1250 }
1251
1252 status = le16_to_cpu(mbx->status);
1253 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1254 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1255 status = 0;
1256 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1257 ql_dbg(ql_dbg_async, vha, 0x5045,
1258 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1259 type, sp->handle, fcport->d_id.b.domain,
1260 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1261 le16_to_cpu(mbx->mb1));
1262
1263 data[0] = MBS_COMMAND_COMPLETE;
1264 if (sp->type == SRB_LOGIN_CMD) {
1265 fcport->port_type = FCT_TARGET;
1266 if (le16_to_cpu(mbx->mb1) & BIT_0)
1267 fcport->port_type = FCT_INITIATOR;
1268 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1269 fcport->flags |= FCF_FCP2_DEVICE;
1270 }
1271 goto logio_done;
1272 }
1273
1274 data[0] = le16_to_cpu(mbx->mb0);
1275 switch (data[0]) {
1276 case MBS_PORT_ID_USED:
1277 data[1] = le16_to_cpu(mbx->mb1);
1278 break;
1279 case MBS_LOOP_ID_USED:
1280 break;
1281 default:
1282 data[0] = MBS_COMMAND_ERROR;
1283 break;
1284 }
1285
1286 ql_log(ql_log_warn, vha, 0x5046,
1287 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1288 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1289 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1290 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1291 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1292 le16_to_cpu(mbx->mb7));
1293
1294 logio_done:
1295 sp->done(vha, sp, 0);
1296 }
1297
1298 static void
1299 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1300 sts_entry_t *pkt, int iocb_type)
1301 {
1302 const char func[] = "CT_IOCB";
1303 const char *type;
1304 srb_t *sp;
1305 struct fc_bsg_job *bsg_job;
1306 uint16_t comp_status;
1307 int res;
1308
1309 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1310 if (!sp)
1311 return;
1312
1313 bsg_job = sp->u.bsg_job;
1314
1315 type = "ct pass-through";
1316
1317 comp_status = le16_to_cpu(pkt->comp_status);
1318
1319 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1320 * fc payload to the caller
1321 */
1322 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1323 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1324
1325 if (comp_status != CS_COMPLETE) {
1326 if (comp_status == CS_DATA_UNDERRUN) {
1327 res = DID_OK << 16;
1328 bsg_job->reply->reply_payload_rcv_len =
1329 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1330
1331 ql_log(ql_log_warn, vha, 0x5048,
1332 "CT pass-through-%s error "
1333 "comp_status-status=0x%x total_byte = 0x%x.\n",
1334 type, comp_status,
1335 bsg_job->reply->reply_payload_rcv_len);
1336 } else {
1337 ql_log(ql_log_warn, vha, 0x5049,
1338 "CT pass-through-%s error "
1339 "comp_status-status=0x%x.\n", type, comp_status);
1340 res = DID_ERROR << 16;
1341 bsg_job->reply->reply_payload_rcv_len = 0;
1342 }
1343 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1344 (uint8_t *)pkt, sizeof(*pkt));
1345 } else {
1346 res = DID_OK << 16;
1347 bsg_job->reply->reply_payload_rcv_len =
1348 bsg_job->reply_payload.payload_len;
1349 bsg_job->reply_len = 0;
1350 }
1351
1352 sp->done(vha, sp, res);
1353 }
1354
1355 static void
1356 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1357 struct sts_entry_24xx *pkt, int iocb_type)
1358 {
1359 const char func[] = "ELS_CT_IOCB";
1360 const char *type;
1361 srb_t *sp;
1362 struct fc_bsg_job *bsg_job;
1363 uint16_t comp_status;
1364 uint32_t fw_status[3];
1365 uint8_t* fw_sts_ptr;
1366 int res;
1367
1368 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1369 if (!sp)
1370 return;
1371 bsg_job = sp->u.bsg_job;
1372
1373 type = NULL;
1374 switch (sp->type) {
1375 case SRB_ELS_CMD_RPT:
1376 case SRB_ELS_CMD_HST:
1377 type = "els";
1378 break;
1379 case SRB_CT_CMD:
1380 type = "ct pass-through";
1381 break;
1382 default:
1383 ql_dbg(ql_dbg_user, vha, 0x503e,
1384 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1385 return;
1386 }
1387
1388 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1389 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1390 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1391
1392 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1393 * fc payload to the caller
1394 */
1395 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1396 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1397
1398 if (comp_status != CS_COMPLETE) {
1399 if (comp_status == CS_DATA_UNDERRUN) {
1400 res = DID_OK << 16;
1401 bsg_job->reply->reply_payload_rcv_len =
1402 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1403
1404 ql_dbg(ql_dbg_user, vha, 0x503f,
1405 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1406 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1407 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1408 le16_to_cpu(((struct els_sts_entry_24xx *)
1409 pkt)->total_byte_count));
1410 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1411 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1412 }
1413 else {
1414 ql_dbg(ql_dbg_user, vha, 0x5040,
1415 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1416 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1417 type, sp->handle, comp_status,
1418 le16_to_cpu(((struct els_sts_entry_24xx *)
1419 pkt)->error_subcode_1),
1420 le16_to_cpu(((struct els_sts_entry_24xx *)
1421 pkt)->error_subcode_2));
1422 res = DID_ERROR << 16;
1423 bsg_job->reply->reply_payload_rcv_len = 0;
1424 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1425 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1426 }
1427 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1428 (uint8_t *)pkt, sizeof(*pkt));
1429 }
1430 else {
1431 res = DID_OK << 16;
1432 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1433 bsg_job->reply_len = 0;
1434 }
1435
1436 sp->done(vha, sp, res);
1437 }
1438
1439 static void
1440 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1441 struct logio_entry_24xx *logio)
1442 {
1443 const char func[] = "LOGIO-IOCB";
1444 const char *type;
1445 fc_port_t *fcport;
1446 srb_t *sp;
1447 struct srb_iocb *lio;
1448 uint16_t *data;
1449 uint32_t iop[2];
1450
1451 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1452 if (!sp)
1453 return;
1454
1455 lio = &sp->u.iocb_cmd;
1456 type = sp->name;
1457 fcport = sp->fcport;
1458 data = lio->u.logio.data;
1459
1460 data[0] = MBS_COMMAND_ERROR;
1461 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1462 QLA_LOGIO_LOGIN_RETRIED : 0;
1463 if (logio->entry_status) {
1464 ql_log(ql_log_warn, fcport->vha, 0x5034,
1465 "Async-%s error entry - hdl=%x"
1466 "portid=%02x%02x%02x entry-status=%x.\n",
1467 type, sp->handle, fcport->d_id.b.domain,
1468 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1469 logio->entry_status);
1470 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1471 (uint8_t *)logio, sizeof(*logio));
1472
1473 goto logio_done;
1474 }
1475
1476 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1477 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1478 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1479 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1480 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1481 le32_to_cpu(logio->io_parameter[0]));
1482
1483 data[0] = MBS_COMMAND_COMPLETE;
1484 if (sp->type != SRB_LOGIN_CMD)
1485 goto logio_done;
1486
1487 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1488 if (iop[0] & BIT_4) {
1489 fcport->port_type = FCT_TARGET;
1490 if (iop[0] & BIT_8)
1491 fcport->flags |= FCF_FCP2_DEVICE;
1492 } else if (iop[0] & BIT_5)
1493 fcport->port_type = FCT_INITIATOR;
1494
1495 if (iop[0] & BIT_7)
1496 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1497
1498 if (logio->io_parameter[7] || logio->io_parameter[8])
1499 fcport->supported_classes |= FC_COS_CLASS2;
1500 if (logio->io_parameter[9] || logio->io_parameter[10])
1501 fcport->supported_classes |= FC_COS_CLASS3;
1502
1503 goto logio_done;
1504 }
1505
1506 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1507 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1508 switch (iop[0]) {
1509 case LSC_SCODE_PORTID_USED:
1510 data[0] = MBS_PORT_ID_USED;
1511 data[1] = LSW(iop[1]);
1512 break;
1513 case LSC_SCODE_NPORT_USED:
1514 data[0] = MBS_LOOP_ID_USED;
1515 break;
1516 default:
1517 data[0] = MBS_COMMAND_ERROR;
1518 break;
1519 }
1520
1521 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1522 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1523 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1524 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1525 le16_to_cpu(logio->comp_status),
1526 le32_to_cpu(logio->io_parameter[0]),
1527 le32_to_cpu(logio->io_parameter[1]));
1528
1529 logio_done:
1530 sp->done(vha, sp, 0);
1531 }
1532
1533 static void
1534 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1535 {
1536 const char func[] = "TMF-IOCB";
1537 const char *type;
1538 fc_port_t *fcport;
1539 srb_t *sp;
1540 struct srb_iocb *iocb;
1541 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1542
1543 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1544 if (!sp)
1545 return;
1546
1547 iocb = &sp->u.iocb_cmd;
1548 type = sp->name;
1549 fcport = sp->fcport;
1550 iocb->u.tmf.data = QLA_SUCCESS;
1551
1552 if (sts->entry_status) {
1553 ql_log(ql_log_warn, fcport->vha, 0x5038,
1554 "Async-%s error - hdl=%x entry-status(%x).\n",
1555 type, sp->handle, sts->entry_status);
1556 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1557 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
1558 ql_log(ql_log_warn, fcport->vha, 0x5039,
1559 "Async-%s error - hdl=%x completion status(%x).\n",
1560 type, sp->handle, sts->comp_status);
1561 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1562 } else if ((le16_to_cpu(sts->scsi_status) &
1563 SS_RESPONSE_INFO_LEN_VALID)) {
1564 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1565 ql_log(ql_log_warn, fcport->vha, 0x503b,
1566 "Async-%s error - hdl=%x not enough response(%d).\n",
1567 type, sp->handle, sts->rsp_data_len);
1568 } else if (sts->data[3]) {
1569 ql_log(ql_log_warn, fcport->vha, 0x503c,
1570 "Async-%s error - hdl=%x response(%x).\n",
1571 type, sp->handle, sts->data[3]);
1572 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1573 }
1574 }
1575
1576 if (iocb->u.tmf.data != QLA_SUCCESS)
1577 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1578 (uint8_t *)sts, sizeof(*sts));
1579
1580 sp->done(vha, sp, 0);
1581 }
1582
1583 /**
1584 * qla2x00_process_response_queue() - Process response queue entries.
1585 * @ha: SCSI driver HA context
1586 */
1587 void
1588 qla2x00_process_response_queue(struct rsp_que *rsp)
1589 {
1590 struct scsi_qla_host *vha;
1591 struct qla_hw_data *ha = rsp->hw;
1592 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1593 sts_entry_t *pkt;
1594 uint16_t handle_cnt;
1595 uint16_t cnt;
1596
1597 vha = pci_get_drvdata(ha->pdev);
1598
1599 if (!vha->flags.online)
1600 return;
1601
1602 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1603 pkt = (sts_entry_t *)rsp->ring_ptr;
1604
1605 rsp->ring_index++;
1606 if (rsp->ring_index == rsp->length) {
1607 rsp->ring_index = 0;
1608 rsp->ring_ptr = rsp->ring;
1609 } else {
1610 rsp->ring_ptr++;
1611 }
1612
1613 if (pkt->entry_status != 0) {
1614 qla2x00_error_entry(vha, rsp, pkt);
1615 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1616 wmb();
1617 continue;
1618 }
1619
1620 switch (pkt->entry_type) {
1621 case STATUS_TYPE:
1622 qla2x00_status_entry(vha, rsp, pkt);
1623 break;
1624 case STATUS_TYPE_21:
1625 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1626 for (cnt = 0; cnt < handle_cnt; cnt++) {
1627 qla2x00_process_completed_request(vha, rsp->req,
1628 ((sts21_entry_t *)pkt)->handle[cnt]);
1629 }
1630 break;
1631 case STATUS_TYPE_22:
1632 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1633 for (cnt = 0; cnt < handle_cnt; cnt++) {
1634 qla2x00_process_completed_request(vha, rsp->req,
1635 ((sts22_entry_t *)pkt)->handle[cnt]);
1636 }
1637 break;
1638 case STATUS_CONT_TYPE:
1639 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1640 break;
1641 case MBX_IOCB_TYPE:
1642 qla2x00_mbx_iocb_entry(vha, rsp->req,
1643 (struct mbx_entry *)pkt);
1644 break;
1645 case CT_IOCB_TYPE:
1646 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1647 break;
1648 default:
1649 /* Type Not Supported. */
1650 ql_log(ql_log_warn, vha, 0x504a,
1651 "Received unknown response pkt type %x "
1652 "entry status=%x.\n",
1653 pkt->entry_type, pkt->entry_status);
1654 break;
1655 }
1656 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1657 wmb();
1658 }
1659
1660 /* Adjust ring index */
1661 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1662 }
1663
1664 static inline void
1665 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1666 uint32_t sense_len, struct rsp_que *rsp, int res)
1667 {
1668 struct scsi_qla_host *vha = sp->fcport->vha;
1669 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1670 uint32_t track_sense_len;
1671
1672 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1673 sense_len = SCSI_SENSE_BUFFERSIZE;
1674
1675 SET_CMD_SENSE_LEN(sp, sense_len);
1676 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1677 track_sense_len = sense_len;
1678
1679 if (sense_len > par_sense_len)
1680 sense_len = par_sense_len;
1681
1682 memcpy(cp->sense_buffer, sense_data, sense_len);
1683
1684 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1685 track_sense_len -= sense_len;
1686 SET_CMD_SENSE_LEN(sp, track_sense_len);
1687
1688 if (track_sense_len != 0) {
1689 rsp->status_srb = sp;
1690 cp->result = res;
1691 }
1692
1693 if (sense_len) {
1694 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1695 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1696 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1697 cp);
1698 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1699 cp->sense_buffer, sense_len);
1700 }
1701 }
1702
1703 struct scsi_dif_tuple {
1704 __be16 guard; /* Checksum */
1705 __be16 app_tag; /* APPL identifier */
1706 __be32 ref_tag; /* Target LBA or indirect LBA */
1707 };
1708
1709 /*
1710 * Checks the guard or meta-data for the type of error
1711 * detected by the HBA. In case of errors, we set the
1712 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1713 * to indicate to the kernel that the HBA detected error.
1714 */
1715 static inline int
1716 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1717 {
1718 struct scsi_qla_host *vha = sp->fcport->vha;
1719 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1720 uint8_t *ap = &sts24->data[12];
1721 uint8_t *ep = &sts24->data[20];
1722 uint32_t e_ref_tag, a_ref_tag;
1723 uint16_t e_app_tag, a_app_tag;
1724 uint16_t e_guard, a_guard;
1725
1726 /*
1727 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1728 * would make guard field appear at offset 2
1729 */
1730 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1731 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1732 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1733 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1734 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1735 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1736
1737 ql_dbg(ql_dbg_io, vha, 0x3023,
1738 "iocb(s) %p Returned STATUS.\n", sts24);
1739
1740 ql_dbg(ql_dbg_io, vha, 0x3024,
1741 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1742 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1743 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1744 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1745 a_app_tag, e_app_tag, a_guard, e_guard);
1746
1747 /*
1748 * Ignore sector if:
1749 * For type 3: ref & app tag is all 'f's
1750 * For type 0,1,2: app tag is all 'f's
1751 */
1752 if ((a_app_tag == 0xffff) &&
1753 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1754 (a_ref_tag == 0xffffffff))) {
1755 uint32_t blocks_done, resid;
1756 sector_t lba_s = scsi_get_lba(cmd);
1757
1758 /* 2TB boundary case covered automatically with this */
1759 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1760
1761 resid = scsi_bufflen(cmd) - (blocks_done *
1762 cmd->device->sector_size);
1763
1764 scsi_set_resid(cmd, resid);
1765 cmd->result = DID_OK << 16;
1766
1767 /* Update protection tag */
1768 if (scsi_prot_sg_count(cmd)) {
1769 uint32_t i, j = 0, k = 0, num_ent;
1770 struct scatterlist *sg;
1771 struct sd_dif_tuple *spt;
1772
1773 /* Patch the corresponding protection tags */
1774 scsi_for_each_prot_sg(cmd, sg,
1775 scsi_prot_sg_count(cmd), i) {
1776 num_ent = sg_dma_len(sg) / 8;
1777 if (k + num_ent < blocks_done) {
1778 k += num_ent;
1779 continue;
1780 }
1781 j = blocks_done - k - 1;
1782 k = blocks_done;
1783 break;
1784 }
1785
1786 if (k != blocks_done) {
1787 ql_log(ql_log_warn, vha, 0x302f,
1788 "unexpected tag values tag:lba=%x:%llx)\n",
1789 e_ref_tag, (unsigned long long)lba_s);
1790 return 1;
1791 }
1792
1793 spt = page_address(sg_page(sg)) + sg->offset;
1794 spt += j;
1795
1796 spt->app_tag = 0xffff;
1797 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1798 spt->ref_tag = 0xffffffff;
1799 }
1800
1801 return 0;
1802 }
1803
1804 /* check guard */
1805 if (e_guard != a_guard) {
1806 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1807 0x10, 0x1);
1808 set_driver_byte(cmd, DRIVER_SENSE);
1809 set_host_byte(cmd, DID_ABORT);
1810 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1811 return 1;
1812 }
1813
1814 /* check ref tag */
1815 if (e_ref_tag != a_ref_tag) {
1816 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1817 0x10, 0x3);
1818 set_driver_byte(cmd, DRIVER_SENSE);
1819 set_host_byte(cmd, DID_ABORT);
1820 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1821 return 1;
1822 }
1823
1824 /* check appl tag */
1825 if (e_app_tag != a_app_tag) {
1826 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1827 0x10, 0x2);
1828 set_driver_byte(cmd, DRIVER_SENSE);
1829 set_host_byte(cmd, DID_ABORT);
1830 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1831 return 1;
1832 }
1833
1834 return 1;
1835 }
1836
1837 static void
1838 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1839 struct req_que *req, uint32_t index)
1840 {
1841 struct qla_hw_data *ha = vha->hw;
1842 srb_t *sp;
1843 uint16_t comp_status;
1844 uint16_t scsi_status;
1845 uint16_t thread_id;
1846 uint32_t rval = EXT_STATUS_OK;
1847 struct fc_bsg_job *bsg_job = NULL;
1848 sts_entry_t *sts;
1849 struct sts_entry_24xx *sts24;
1850 sts = (sts_entry_t *) pkt;
1851 sts24 = (struct sts_entry_24xx *) pkt;
1852
1853 /* Validate handle. */
1854 if (index >= req->num_outstanding_cmds) {
1855 ql_log(ql_log_warn, vha, 0x70af,
1856 "Invalid SCSI completion handle 0x%x.\n", index);
1857 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1858 return;
1859 }
1860
1861 sp = req->outstanding_cmds[index];
1862 if (sp) {
1863 /* Free outstanding command slot. */
1864 req->outstanding_cmds[index] = NULL;
1865 bsg_job = sp->u.bsg_job;
1866 } else {
1867 ql_log(ql_log_warn, vha, 0x70b0,
1868 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1869 req->id, index);
1870
1871 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1872 return;
1873 }
1874
1875 if (IS_FWI2_CAPABLE(ha)) {
1876 comp_status = le16_to_cpu(sts24->comp_status);
1877 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1878 } else {
1879 comp_status = le16_to_cpu(sts->comp_status);
1880 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1881 }
1882
1883 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1884 switch (comp_status) {
1885 case CS_COMPLETE:
1886 if (scsi_status == 0) {
1887 bsg_job->reply->reply_payload_rcv_len =
1888 bsg_job->reply_payload.payload_len;
1889 vha->qla_stats.input_bytes +=
1890 bsg_job->reply->reply_payload_rcv_len;
1891 vha->qla_stats.input_requests++;
1892 rval = EXT_STATUS_OK;
1893 }
1894 goto done;
1895
1896 case CS_DATA_OVERRUN:
1897 ql_dbg(ql_dbg_user, vha, 0x70b1,
1898 "Command completed with date overrun thread_id=%d\n",
1899 thread_id);
1900 rval = EXT_STATUS_DATA_OVERRUN;
1901 break;
1902
1903 case CS_DATA_UNDERRUN:
1904 ql_dbg(ql_dbg_user, vha, 0x70b2,
1905 "Command completed with date underrun thread_id=%d\n",
1906 thread_id);
1907 rval = EXT_STATUS_DATA_UNDERRUN;
1908 break;
1909 case CS_BIDIR_RD_OVERRUN:
1910 ql_dbg(ql_dbg_user, vha, 0x70b3,
1911 "Command completed with read data overrun thread_id=%d\n",
1912 thread_id);
1913 rval = EXT_STATUS_DATA_OVERRUN;
1914 break;
1915
1916 case CS_BIDIR_RD_WR_OVERRUN:
1917 ql_dbg(ql_dbg_user, vha, 0x70b4,
1918 "Command completed with read and write data overrun "
1919 "thread_id=%d\n", thread_id);
1920 rval = EXT_STATUS_DATA_OVERRUN;
1921 break;
1922
1923 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1924 ql_dbg(ql_dbg_user, vha, 0x70b5,
1925 "Command completed with read data over and write data "
1926 "underrun thread_id=%d\n", thread_id);
1927 rval = EXT_STATUS_DATA_OVERRUN;
1928 break;
1929
1930 case CS_BIDIR_RD_UNDERRUN:
1931 ql_dbg(ql_dbg_user, vha, 0x70b6,
1932 "Command completed with read data data underrun "
1933 "thread_id=%d\n", thread_id);
1934 rval = EXT_STATUS_DATA_UNDERRUN;
1935 break;
1936
1937 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1938 ql_dbg(ql_dbg_user, vha, 0x70b7,
1939 "Command completed with read data under and write data "
1940 "overrun thread_id=%d\n", thread_id);
1941 rval = EXT_STATUS_DATA_UNDERRUN;
1942 break;
1943
1944 case CS_BIDIR_RD_WR_UNDERRUN:
1945 ql_dbg(ql_dbg_user, vha, 0x70b8,
1946 "Command completed with read and write data underrun "
1947 "thread_id=%d\n", thread_id);
1948 rval = EXT_STATUS_DATA_UNDERRUN;
1949 break;
1950
1951 case CS_BIDIR_DMA:
1952 ql_dbg(ql_dbg_user, vha, 0x70b9,
1953 "Command completed with data DMA error thread_id=%d\n",
1954 thread_id);
1955 rval = EXT_STATUS_DMA_ERR;
1956 break;
1957
1958 case CS_TIMEOUT:
1959 ql_dbg(ql_dbg_user, vha, 0x70ba,
1960 "Command completed with timeout thread_id=%d\n",
1961 thread_id);
1962 rval = EXT_STATUS_TIMEOUT;
1963 break;
1964 default:
1965 ql_dbg(ql_dbg_user, vha, 0x70bb,
1966 "Command completed with completion status=0x%x "
1967 "thread_id=%d\n", comp_status, thread_id);
1968 rval = EXT_STATUS_ERR;
1969 break;
1970 }
1971 bsg_job->reply->reply_payload_rcv_len = 0;
1972
1973 done:
1974 /* Return the vendor specific reply to API */
1975 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
1976 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1977 /* Always return DID_OK, bsg will send the vendor specific response
1978 * in this case only */
1979 sp->done(vha, sp, (DID_OK << 6));
1980
1981 }
1982
1983 /**
1984 * qla2x00_status_entry() - Process a Status IOCB entry.
1985 * @ha: SCSI driver HA context
1986 * @pkt: Entry pointer
1987 */
1988 static void
1989 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
1990 {
1991 srb_t *sp;
1992 fc_port_t *fcport;
1993 struct scsi_cmnd *cp;
1994 sts_entry_t *sts;
1995 struct sts_entry_24xx *sts24;
1996 uint16_t comp_status;
1997 uint16_t scsi_status;
1998 uint16_t ox_id;
1999 uint8_t lscsi_status;
2000 int32_t resid;
2001 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2002 fw_resid_len;
2003 uint8_t *rsp_info, *sense_data;
2004 struct qla_hw_data *ha = vha->hw;
2005 uint32_t handle;
2006 uint16_t que;
2007 struct req_que *req;
2008 int logit = 1;
2009 int res = 0;
2010 uint16_t state_flags = 0;
2011 uint16_t retry_delay = 0;
2012
2013 sts = (sts_entry_t *) pkt;
2014 sts24 = (struct sts_entry_24xx *) pkt;
2015 if (IS_FWI2_CAPABLE(ha)) {
2016 comp_status = le16_to_cpu(sts24->comp_status);
2017 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2018 state_flags = le16_to_cpu(sts24->state_flags);
2019 } else {
2020 comp_status = le16_to_cpu(sts->comp_status);
2021 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2022 }
2023 handle = (uint32_t) LSW(sts->handle);
2024 que = MSW(sts->handle);
2025 req = ha->req_q_map[que];
2026
2027 /* Check for invalid queue pointer */
2028 if (req == NULL ||
2029 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2030 ql_dbg(ql_dbg_io, vha, 0x3059,
2031 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2032 "que=%u.\n", sts->handle, req, que);
2033 return;
2034 }
2035
2036 /* Validate handle. */
2037 if (handle < req->num_outstanding_cmds)
2038 sp = req->outstanding_cmds[handle];
2039 else
2040 sp = NULL;
2041
2042 if (sp == NULL) {
2043 ql_dbg(ql_dbg_io, vha, 0x3017,
2044 "Invalid status handle (0x%x).\n", sts->handle);
2045
2046 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2047 if (IS_P3P_TYPE(ha))
2048 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2049 else
2050 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2051 qla2xxx_wake_dpc(vha);
2052 }
2053 return;
2054 }
2055
2056 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2057 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2058 return;
2059 }
2060
2061 /* Task Management completion. */
2062 if (sp->type == SRB_TM_CMD) {
2063 qla24xx_tm_iocb_entry(vha, req, pkt);
2064 return;
2065 }
2066
2067 /* Fast path completion. */
2068 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2069 qla2x00_process_completed_request(vha, req, handle);
2070
2071 return;
2072 }
2073
2074 req->outstanding_cmds[handle] = NULL;
2075 cp = GET_CMD_SP(sp);
2076 if (cp == NULL) {
2077 ql_dbg(ql_dbg_io, vha, 0x3018,
2078 "Command already returned (0x%x/%p).\n",
2079 sts->handle, sp);
2080
2081 return;
2082 }
2083
2084 lscsi_status = scsi_status & STATUS_MASK;
2085
2086 fcport = sp->fcport;
2087
2088 ox_id = 0;
2089 sense_len = par_sense_len = rsp_info_len = resid_len =
2090 fw_resid_len = 0;
2091 if (IS_FWI2_CAPABLE(ha)) {
2092 if (scsi_status & SS_SENSE_LEN_VALID)
2093 sense_len = le32_to_cpu(sts24->sense_len);
2094 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2095 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2096 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2097 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2098 if (comp_status == CS_DATA_UNDERRUN)
2099 fw_resid_len = le32_to_cpu(sts24->residual_len);
2100 rsp_info = sts24->data;
2101 sense_data = sts24->data;
2102 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2103 ox_id = le16_to_cpu(sts24->ox_id);
2104 par_sense_len = sizeof(sts24->data);
2105 /* Valid values of the retry delay timer are 0x1-0xffef */
2106 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2107 retry_delay = sts24->retry_delay;
2108 } else {
2109 if (scsi_status & SS_SENSE_LEN_VALID)
2110 sense_len = le16_to_cpu(sts->req_sense_length);
2111 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2112 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2113 resid_len = le32_to_cpu(sts->residual_length);
2114 rsp_info = sts->rsp_info;
2115 sense_data = sts->req_sense_data;
2116 par_sense_len = sizeof(sts->req_sense_data);
2117 }
2118
2119 /* Check for any FCP transport errors. */
2120 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2121 /* Sense data lies beyond any FCP RESPONSE data. */
2122 if (IS_FWI2_CAPABLE(ha)) {
2123 sense_data += rsp_info_len;
2124 par_sense_len -= rsp_info_len;
2125 }
2126 if (rsp_info_len > 3 && rsp_info[3]) {
2127 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2128 "FCP I/O protocol failure (0x%x/0x%x).\n",
2129 rsp_info_len, rsp_info[3]);
2130
2131 res = DID_BUS_BUSY << 16;
2132 goto out;
2133 }
2134 }
2135
2136 /* Check for overrun. */
2137 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2138 scsi_status & SS_RESIDUAL_OVER)
2139 comp_status = CS_DATA_OVERRUN;
2140
2141 /*
2142 * Check retry_delay_timer value if we receive a busy or
2143 * queue full.
2144 */
2145 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2146 lscsi_status == SAM_STAT_BUSY)
2147 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2148
2149 /*
2150 * Based on Host and scsi status generate status code for Linux
2151 */
2152 switch (comp_status) {
2153 case CS_COMPLETE:
2154 case CS_QUEUE_FULL:
2155 if (scsi_status == 0) {
2156 res = DID_OK << 16;
2157 break;
2158 }
2159 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2160 resid = resid_len;
2161 scsi_set_resid(cp, resid);
2162
2163 if (!lscsi_status &&
2164 ((unsigned)(scsi_bufflen(cp) - resid) <
2165 cp->underflow)) {
2166 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2167 "Mid-layer underflow "
2168 "detected (0x%x of 0x%x bytes).\n",
2169 resid, scsi_bufflen(cp));
2170
2171 res = DID_ERROR << 16;
2172 break;
2173 }
2174 }
2175 res = DID_OK << 16 | lscsi_status;
2176
2177 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2178 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2179 "QUEUE FULL detected.\n");
2180 break;
2181 }
2182 logit = 0;
2183 if (lscsi_status != SS_CHECK_CONDITION)
2184 break;
2185
2186 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2187 if (!(scsi_status & SS_SENSE_LEN_VALID))
2188 break;
2189
2190 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2191 rsp, res);
2192 break;
2193
2194 case CS_DATA_UNDERRUN:
2195 /* Use F/W calculated residual length. */
2196 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2197 scsi_set_resid(cp, resid);
2198 if (scsi_status & SS_RESIDUAL_UNDER) {
2199 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2200 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2201 "Dropped frame(s) detected "
2202 "(0x%x of 0x%x bytes).\n",
2203 resid, scsi_bufflen(cp));
2204
2205 res = DID_ERROR << 16 | lscsi_status;
2206 goto check_scsi_status;
2207 }
2208
2209 if (!lscsi_status &&
2210 ((unsigned)(scsi_bufflen(cp) - resid) <
2211 cp->underflow)) {
2212 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2213 "Mid-layer underflow "
2214 "detected (0x%x of 0x%x bytes).\n",
2215 resid, scsi_bufflen(cp));
2216
2217 res = DID_ERROR << 16;
2218 break;
2219 }
2220 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2221 lscsi_status != SAM_STAT_BUSY) {
2222 /*
2223 * scsi status of task set and busy are considered to be
2224 * task not completed.
2225 */
2226
2227 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2228 "Dropped frame(s) detected (0x%x "
2229 "of 0x%x bytes).\n", resid,
2230 scsi_bufflen(cp));
2231
2232 res = DID_ERROR << 16 | lscsi_status;
2233 goto check_scsi_status;
2234 } else {
2235 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2236 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2237 scsi_status, lscsi_status);
2238 }
2239
2240 res = DID_OK << 16 | lscsi_status;
2241 logit = 0;
2242
2243 check_scsi_status:
2244 /*
2245 * Check to see if SCSI Status is non zero. If so report SCSI
2246 * Status.
2247 */
2248 if (lscsi_status != 0) {
2249 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2250 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2251 "QUEUE FULL detected.\n");
2252 logit = 1;
2253 break;
2254 }
2255 if (lscsi_status != SS_CHECK_CONDITION)
2256 break;
2257
2258 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2259 if (!(scsi_status & SS_SENSE_LEN_VALID))
2260 break;
2261
2262 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2263 sense_len, rsp, res);
2264 }
2265 break;
2266
2267 case CS_PORT_LOGGED_OUT:
2268 case CS_PORT_CONFIG_CHG:
2269 case CS_PORT_BUSY:
2270 case CS_INCOMPLETE:
2271 case CS_PORT_UNAVAILABLE:
2272 case CS_TIMEOUT:
2273 case CS_RESET:
2274
2275 /*
2276 * We are going to have the fc class block the rport
2277 * while we try to recover so instruct the mid layer
2278 * to requeue until the class decides how to handle this.
2279 */
2280 res = DID_TRANSPORT_DISRUPTED << 16;
2281
2282 if (comp_status == CS_TIMEOUT) {
2283 if (IS_FWI2_CAPABLE(ha))
2284 break;
2285 else if ((le16_to_cpu(sts->status_flags) &
2286 SF_LOGOUT_SENT) == 0)
2287 break;
2288 }
2289
2290 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2291 "Port to be marked lost on fcport=%02x%02x%02x, current "
2292 "port state= %s.\n", fcport->d_id.b.domain,
2293 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2294 port_state_str[atomic_read(&fcport->state)]);
2295
2296 if (atomic_read(&fcport->state) == FCS_ONLINE)
2297 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2298 break;
2299
2300 case CS_ABORTED:
2301 res = DID_RESET << 16;
2302 break;
2303
2304 case CS_DIF_ERROR:
2305 logit = qla2x00_handle_dif_error(sp, sts24);
2306 res = cp->result;
2307 break;
2308
2309 case CS_TRANSPORT:
2310 res = DID_ERROR << 16;
2311
2312 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2313 break;
2314
2315 if (state_flags & BIT_4)
2316 scmd_printk(KERN_WARNING, cp,
2317 "Unsupported device '%s' found.\n",
2318 cp->device->vendor);
2319 break;
2320
2321 default:
2322 res = DID_ERROR << 16;
2323 break;
2324 }
2325
2326 out:
2327 if (logit)
2328 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2329 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2330 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2331 "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
2332 comp_status, scsi_status, res, vha->host_no,
2333 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2334 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2335 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2336 resid_len, fw_resid_len);
2337
2338 if (rsp->status_srb == NULL)
2339 sp->done(ha, sp, res);
2340 }
2341
2342 /**
2343 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2344 * @ha: SCSI driver HA context
2345 * @pkt: Entry pointer
2346 *
2347 * Extended sense data.
2348 */
2349 static void
2350 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2351 {
2352 uint8_t sense_sz = 0;
2353 struct qla_hw_data *ha = rsp->hw;
2354 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2355 srb_t *sp = rsp->status_srb;
2356 struct scsi_cmnd *cp;
2357 uint32_t sense_len;
2358 uint8_t *sense_ptr;
2359
2360 if (!sp || !GET_CMD_SENSE_LEN(sp))
2361 return;
2362
2363 sense_len = GET_CMD_SENSE_LEN(sp);
2364 sense_ptr = GET_CMD_SENSE_PTR(sp);
2365
2366 cp = GET_CMD_SP(sp);
2367 if (cp == NULL) {
2368 ql_log(ql_log_warn, vha, 0x3025,
2369 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2370
2371 rsp->status_srb = NULL;
2372 return;
2373 }
2374
2375 if (sense_len > sizeof(pkt->data))
2376 sense_sz = sizeof(pkt->data);
2377 else
2378 sense_sz = sense_len;
2379
2380 /* Move sense data. */
2381 if (IS_FWI2_CAPABLE(ha))
2382 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2383 memcpy(sense_ptr, pkt->data, sense_sz);
2384 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2385 sense_ptr, sense_sz);
2386
2387 sense_len -= sense_sz;
2388 sense_ptr += sense_sz;
2389
2390 SET_CMD_SENSE_PTR(sp, sense_ptr);
2391 SET_CMD_SENSE_LEN(sp, sense_len);
2392
2393 /* Place command on done queue. */
2394 if (sense_len == 0) {
2395 rsp->status_srb = NULL;
2396 sp->done(ha, sp, cp->result);
2397 }
2398 }
2399
2400 /**
2401 * qla2x00_error_entry() - Process an error entry.
2402 * @ha: SCSI driver HA context
2403 * @pkt: Entry pointer
2404 */
2405 static void
2406 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2407 {
2408 srb_t *sp;
2409 struct qla_hw_data *ha = vha->hw;
2410 const char func[] = "ERROR-IOCB";
2411 uint16_t que = MSW(pkt->handle);
2412 struct req_que *req = NULL;
2413 int res = DID_ERROR << 16;
2414
2415 ql_dbg(ql_dbg_async, vha, 0x502a,
2416 "type of error status in response: 0x%x\n", pkt->entry_status);
2417
2418 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2419 goto fatal;
2420
2421 req = ha->req_q_map[que];
2422
2423 if (pkt->entry_status & RF_BUSY)
2424 res = DID_BUS_BUSY << 16;
2425
2426 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2427 if (sp) {
2428 sp->done(ha, sp, res);
2429 return;
2430 }
2431 fatal:
2432 ql_log(ql_log_warn, vha, 0x5030,
2433 "Error entry - invalid handle/queue.\n");
2434
2435 if (IS_P3P_TYPE(ha))
2436 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2437 else
2438 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2439 qla2xxx_wake_dpc(vha);
2440 }
2441
2442 /**
2443 * qla24xx_mbx_completion() - Process mailbox command completions.
2444 * @ha: SCSI driver HA context
2445 * @mb0: Mailbox0 register
2446 */
2447 static void
2448 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2449 {
2450 uint16_t cnt;
2451 uint32_t mboxes;
2452 uint16_t __iomem *wptr;
2453 struct qla_hw_data *ha = vha->hw;
2454 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2455
2456 /* Read all mbox registers? */
2457 mboxes = (1 << ha->mbx_count) - 1;
2458 if (!ha->mcp)
2459 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2460 else
2461 mboxes = ha->mcp->in_mb;
2462
2463 /* Load return mailbox registers. */
2464 ha->flags.mbox_int = 1;
2465 ha->mailbox_out[0] = mb0;
2466 mboxes >>= 1;
2467 wptr = (uint16_t __iomem *)&reg->mailbox1;
2468
2469 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2470 if (mboxes & BIT_0)
2471 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2472
2473 mboxes >>= 1;
2474 wptr++;
2475 }
2476 }
2477
2478 static void
2479 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2480 struct abort_entry_24xx *pkt)
2481 {
2482 const char func[] = "ABT_IOCB";
2483 srb_t *sp;
2484 struct srb_iocb *abt;
2485
2486 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2487 if (!sp)
2488 return;
2489
2490 abt = &sp->u.iocb_cmd;
2491 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2492 sp->done(vha, sp, 0);
2493 }
2494
2495 /**
2496 * qla24xx_process_response_queue() - Process response queue entries.
2497 * @ha: SCSI driver HA context
2498 */
2499 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2500 struct rsp_que *rsp)
2501 {
2502 struct sts_entry_24xx *pkt;
2503 struct qla_hw_data *ha = vha->hw;
2504
2505 if (!vha->flags.online)
2506 return;
2507
2508 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2509 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2510
2511 rsp->ring_index++;
2512 if (rsp->ring_index == rsp->length) {
2513 rsp->ring_index = 0;
2514 rsp->ring_ptr = rsp->ring;
2515 } else {
2516 rsp->ring_ptr++;
2517 }
2518
2519 if (pkt->entry_status != 0) {
2520 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2521
2522 if (qlt_24xx_process_response_error(vha, pkt))
2523 goto process_err;
2524
2525 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2526 wmb();
2527 continue;
2528 }
2529 process_err:
2530
2531 switch (pkt->entry_type) {
2532 case STATUS_TYPE:
2533 qla2x00_status_entry(vha, rsp, pkt);
2534 break;
2535 case STATUS_CONT_TYPE:
2536 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2537 break;
2538 case VP_RPT_ID_IOCB_TYPE:
2539 qla24xx_report_id_acquisition(vha,
2540 (struct vp_rpt_id_entry_24xx *)pkt);
2541 break;
2542 case LOGINOUT_PORT_IOCB_TYPE:
2543 qla24xx_logio_entry(vha, rsp->req,
2544 (struct logio_entry_24xx *)pkt);
2545 break;
2546 case CT_IOCB_TYPE:
2547 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2548 break;
2549 case ELS_IOCB_TYPE:
2550 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2551 break;
2552 case ABTS_RECV_24XX:
2553 /* ensure that the ATIO queue is empty */
2554 qlt_24xx_process_atio_queue(vha);
2555 case ABTS_RESP_24XX:
2556 case CTIO_TYPE7:
2557 case NOTIFY_ACK_TYPE:
2558 case CTIO_CRC2:
2559 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2560 break;
2561 case MARKER_TYPE:
2562 /* Do nothing in this case, this check is to prevent it
2563 * from falling into default case
2564 */
2565 break;
2566 case ABORT_IOCB_TYPE:
2567 qla24xx_abort_iocb_entry(vha, rsp->req,
2568 (struct abort_entry_24xx *)pkt);
2569 break;
2570 default:
2571 /* Type Not Supported. */
2572 ql_dbg(ql_dbg_async, vha, 0x5042,
2573 "Received unknown response pkt type %x "
2574 "entry status=%x.\n",
2575 pkt->entry_type, pkt->entry_status);
2576 break;
2577 }
2578 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2579 wmb();
2580 }
2581
2582 /* Adjust ring index */
2583 if (IS_P3P_TYPE(ha)) {
2584 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2585 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2586 } else
2587 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2588 }
2589
2590 static void
2591 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2592 {
2593 int rval;
2594 uint32_t cnt;
2595 struct qla_hw_data *ha = vha->hw;
2596 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2597
2598 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2599 !IS_QLA27XX(ha))
2600 return;
2601
2602 rval = QLA_SUCCESS;
2603 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2604 RD_REG_DWORD(&reg->iobase_addr);
2605 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2606 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2607 rval == QLA_SUCCESS; cnt--) {
2608 if (cnt) {
2609 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2610 udelay(10);
2611 } else
2612 rval = QLA_FUNCTION_TIMEOUT;
2613 }
2614 if (rval == QLA_SUCCESS)
2615 goto next_test;
2616
2617 rval = QLA_SUCCESS;
2618 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2619 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2620 rval == QLA_SUCCESS; cnt--) {
2621 if (cnt) {
2622 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2623 udelay(10);
2624 } else
2625 rval = QLA_FUNCTION_TIMEOUT;
2626 }
2627 if (rval != QLA_SUCCESS)
2628 goto done;
2629
2630 next_test:
2631 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2632 ql_log(ql_log_info, vha, 0x504c,
2633 "Additional code -- 0x55AA.\n");
2634
2635 done:
2636 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2637 RD_REG_DWORD(&reg->iobase_window);
2638 }
2639
2640 /**
2641 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2642 * @irq:
2643 * @dev_id: SCSI driver HA context
2644 *
2645 * Called by system whenever the host adapter generates an interrupt.
2646 *
2647 * Returns handled flag.
2648 */
2649 irqreturn_t
2650 qla24xx_intr_handler(int irq, void *dev_id)
2651 {
2652 scsi_qla_host_t *vha;
2653 struct qla_hw_data *ha;
2654 struct device_reg_24xx __iomem *reg;
2655 int status;
2656 unsigned long iter;
2657 uint32_t stat;
2658 uint32_t hccr;
2659 uint16_t mb[8];
2660 struct rsp_que *rsp;
2661 unsigned long flags;
2662
2663 rsp = (struct rsp_que *) dev_id;
2664 if (!rsp) {
2665 ql_log(ql_log_info, NULL, 0x5059,
2666 "%s: NULL response queue pointer.\n", __func__);
2667 return IRQ_NONE;
2668 }
2669
2670 ha = rsp->hw;
2671 reg = &ha->iobase->isp24;
2672 status = 0;
2673
2674 if (unlikely(pci_channel_offline(ha->pdev)))
2675 return IRQ_HANDLED;
2676
2677 spin_lock_irqsave(&ha->hardware_lock, flags);
2678 vha = pci_get_drvdata(ha->pdev);
2679 for (iter = 50; iter--; ) {
2680 stat = RD_REG_DWORD(&reg->host_status);
2681 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2682 break;
2683 if (stat & HSRX_RISC_PAUSED) {
2684 if (unlikely(pci_channel_offline(ha->pdev)))
2685 break;
2686
2687 hccr = RD_REG_DWORD(&reg->hccr);
2688
2689 ql_log(ql_log_warn, vha, 0x504b,
2690 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2691 hccr);
2692
2693 qla2xxx_check_risc_status(vha);
2694
2695 ha->isp_ops->fw_dump(vha, 1);
2696 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2697 break;
2698 } else if ((stat & HSRX_RISC_INT) == 0)
2699 break;
2700
2701 switch (stat & 0xff) {
2702 case INTR_ROM_MB_SUCCESS:
2703 case INTR_ROM_MB_FAILED:
2704 case INTR_MB_SUCCESS:
2705 case INTR_MB_FAILED:
2706 qla24xx_mbx_completion(vha, MSW(stat));
2707 status |= MBX_INTERRUPT;
2708
2709 break;
2710 case INTR_ASYNC_EVENT:
2711 mb[0] = MSW(stat);
2712 mb[1] = RD_REG_WORD(&reg->mailbox1);
2713 mb[2] = RD_REG_WORD(&reg->mailbox2);
2714 mb[3] = RD_REG_WORD(&reg->mailbox3);
2715 qla2x00_async_event(vha, rsp, mb);
2716 break;
2717 case INTR_RSP_QUE_UPDATE:
2718 case INTR_RSP_QUE_UPDATE_83XX:
2719 qla24xx_process_response_queue(vha, rsp);
2720 break;
2721 case INTR_ATIO_QUE_UPDATE:
2722 qlt_24xx_process_atio_queue(vha);
2723 break;
2724 case INTR_ATIO_RSP_QUE_UPDATE:
2725 qlt_24xx_process_atio_queue(vha);
2726 qla24xx_process_response_queue(vha, rsp);
2727 break;
2728 default:
2729 ql_dbg(ql_dbg_async, vha, 0x504f,
2730 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2731 break;
2732 }
2733 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2734 RD_REG_DWORD_RELAXED(&reg->hccr);
2735 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2736 ndelay(3500);
2737 }
2738 qla2x00_handle_mbx_completion(ha, status);
2739 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2740
2741 return IRQ_HANDLED;
2742 }
2743
2744 static irqreturn_t
2745 qla24xx_msix_rsp_q(int irq, void *dev_id)
2746 {
2747 struct qla_hw_data *ha;
2748 struct rsp_que *rsp;
2749 struct device_reg_24xx __iomem *reg;
2750 struct scsi_qla_host *vha;
2751 unsigned long flags;
2752 uint32_t stat = 0;
2753
2754 rsp = (struct rsp_que *) dev_id;
2755 if (!rsp) {
2756 ql_log(ql_log_info, NULL, 0x505a,
2757 "%s: NULL response queue pointer.\n", __func__);
2758 return IRQ_NONE;
2759 }
2760 ha = rsp->hw;
2761 reg = &ha->iobase->isp24;
2762
2763 spin_lock_irqsave(&ha->hardware_lock, flags);
2764
2765 vha = pci_get_drvdata(ha->pdev);
2766 /*
2767 * Use host_status register to check to PCI disconnection before we
2768 * we process the response queue.
2769 */
2770 stat = RD_REG_DWORD(&reg->host_status);
2771 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2772 goto out;
2773 qla24xx_process_response_queue(vha, rsp);
2774 if (!ha->flags.disable_msix_handshake) {
2775 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2776 RD_REG_DWORD_RELAXED(&reg->hccr);
2777 }
2778 out:
2779 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2780
2781 return IRQ_HANDLED;
2782 }
2783
2784 static irqreturn_t
2785 qla25xx_msix_rsp_q(int irq, void *dev_id)
2786 {
2787 struct qla_hw_data *ha;
2788 scsi_qla_host_t *vha;
2789 struct rsp_que *rsp;
2790 struct device_reg_24xx __iomem *reg;
2791 unsigned long flags;
2792 uint32_t hccr = 0;
2793
2794 rsp = (struct rsp_que *) dev_id;
2795 if (!rsp) {
2796 ql_log(ql_log_info, NULL, 0x505b,
2797 "%s: NULL response queue pointer.\n", __func__);
2798 return IRQ_NONE;
2799 }
2800 ha = rsp->hw;
2801 vha = pci_get_drvdata(ha->pdev);
2802
2803 /* Clear the interrupt, if enabled, for this response queue */
2804 if (!ha->flags.disable_msix_handshake) {
2805 reg = &ha->iobase->isp24;
2806 spin_lock_irqsave(&ha->hardware_lock, flags);
2807 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2808 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2809 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2810 }
2811 if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2812 goto out;
2813 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2814
2815 out:
2816 return IRQ_HANDLED;
2817 }
2818
2819 static irqreturn_t
2820 qla24xx_msix_default(int irq, void *dev_id)
2821 {
2822 scsi_qla_host_t *vha;
2823 struct qla_hw_data *ha;
2824 struct rsp_que *rsp;
2825 struct device_reg_24xx __iomem *reg;
2826 int status;
2827 uint32_t stat;
2828 uint32_t hccr;
2829 uint16_t mb[8];
2830 unsigned long flags;
2831
2832 rsp = (struct rsp_que *) dev_id;
2833 if (!rsp) {
2834 ql_log(ql_log_info, NULL, 0x505c,
2835 "%s: NULL response queue pointer.\n", __func__);
2836 return IRQ_NONE;
2837 }
2838 ha = rsp->hw;
2839 reg = &ha->iobase->isp24;
2840 status = 0;
2841
2842 spin_lock_irqsave(&ha->hardware_lock, flags);
2843 vha = pci_get_drvdata(ha->pdev);
2844 do {
2845 stat = RD_REG_DWORD(&reg->host_status);
2846 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2847 break;
2848 if (stat & HSRX_RISC_PAUSED) {
2849 if (unlikely(pci_channel_offline(ha->pdev)))
2850 break;
2851
2852 hccr = RD_REG_DWORD(&reg->hccr);
2853
2854 ql_log(ql_log_info, vha, 0x5050,
2855 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2856 hccr);
2857
2858 qla2xxx_check_risc_status(vha);
2859
2860 ha->isp_ops->fw_dump(vha, 1);
2861 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2862 break;
2863 } else if ((stat & HSRX_RISC_INT) == 0)
2864 break;
2865
2866 switch (stat & 0xff) {
2867 case INTR_ROM_MB_SUCCESS:
2868 case INTR_ROM_MB_FAILED:
2869 case INTR_MB_SUCCESS:
2870 case INTR_MB_FAILED:
2871 qla24xx_mbx_completion(vha, MSW(stat));
2872 status |= MBX_INTERRUPT;
2873
2874 break;
2875 case INTR_ASYNC_EVENT:
2876 mb[0] = MSW(stat);
2877 mb[1] = RD_REG_WORD(&reg->mailbox1);
2878 mb[2] = RD_REG_WORD(&reg->mailbox2);
2879 mb[3] = RD_REG_WORD(&reg->mailbox3);
2880 qla2x00_async_event(vha, rsp, mb);
2881 break;
2882 case INTR_RSP_QUE_UPDATE:
2883 case INTR_RSP_QUE_UPDATE_83XX:
2884 qla24xx_process_response_queue(vha, rsp);
2885 break;
2886 case INTR_ATIO_QUE_UPDATE:
2887 qlt_24xx_process_atio_queue(vha);
2888 break;
2889 case INTR_ATIO_RSP_QUE_UPDATE:
2890 qlt_24xx_process_atio_queue(vha);
2891 qla24xx_process_response_queue(vha, rsp);
2892 break;
2893 default:
2894 ql_dbg(ql_dbg_async, vha, 0x5051,
2895 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2896 break;
2897 }
2898 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2899 } while (0);
2900 qla2x00_handle_mbx_completion(ha, status);
2901 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2902
2903 return IRQ_HANDLED;
2904 }
2905
2906 /* Interrupt handling helpers. */
2907
2908 struct qla_init_msix_entry {
2909 const char *name;
2910 irq_handler_t handler;
2911 };
2912
2913 static struct qla_init_msix_entry msix_entries[3] = {
2914 { "qla2xxx (default)", qla24xx_msix_default },
2915 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2916 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2917 };
2918
2919 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2920 { "qla2xxx (default)", qla82xx_msix_default },
2921 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2922 };
2923
2924 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2925 { "qla2xxx (default)", qla24xx_msix_default },
2926 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2927 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2928 };
2929
2930 static void
2931 qla24xx_disable_msix(struct qla_hw_data *ha)
2932 {
2933 int i;
2934 struct qla_msix_entry *qentry;
2935 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2936
2937 for (i = 0; i < ha->msix_count; i++) {
2938 qentry = &ha->msix_entries[i];
2939 if (qentry->have_irq)
2940 free_irq(qentry->vector, qentry->rsp);
2941 }
2942 pci_disable_msix(ha->pdev);
2943 kfree(ha->msix_entries);
2944 ha->msix_entries = NULL;
2945 ha->flags.msix_enabled = 0;
2946 ql_dbg(ql_dbg_init, vha, 0x0042,
2947 "Disabled the MSI.\n");
2948 }
2949
2950 static int
2951 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2952 {
2953 #define MIN_MSIX_COUNT 2
2954 #define ATIO_VECTOR 2
2955 int i, ret;
2956 struct msix_entry *entries;
2957 struct qla_msix_entry *qentry;
2958 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2959
2960 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
2961 GFP_KERNEL);
2962 if (!entries) {
2963 ql_log(ql_log_warn, vha, 0x00bc,
2964 "Failed to allocate memory for msix_entry.\n");
2965 return -ENOMEM;
2966 }
2967
2968 for (i = 0; i < ha->msix_count; i++)
2969 entries[i].entry = i;
2970
2971 ret = pci_enable_msix_range(ha->pdev,
2972 entries, MIN_MSIX_COUNT, ha->msix_count);
2973 if (ret < 0) {
2974 ql_log(ql_log_fatal, vha, 0x00c7,
2975 "MSI-X: Failed to enable support, "
2976 "giving up -- %d/%d.\n",
2977 ha->msix_count, ret);
2978 goto msix_out;
2979 } else if (ret < ha->msix_count) {
2980 ql_log(ql_log_warn, vha, 0x00c6,
2981 "MSI-X: Failed to enable support "
2982 "-- %d/%d\n Retry with %d vectors.\n",
2983 ha->msix_count, ret, ret);
2984 }
2985 ha->msix_count = ret;
2986 ha->max_rsp_queues = ha->msix_count - 1;
2987 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
2988 ha->msix_count, GFP_KERNEL);
2989 if (!ha->msix_entries) {
2990 ql_log(ql_log_fatal, vha, 0x00c8,
2991 "Failed to allocate memory for ha->msix_entries.\n");
2992 ret = -ENOMEM;
2993 goto msix_out;
2994 }
2995 ha->flags.msix_enabled = 1;
2996
2997 for (i = 0; i < ha->msix_count; i++) {
2998 qentry = &ha->msix_entries[i];
2999 qentry->vector = entries[i].vector;
3000 qentry->entry = entries[i].entry;
3001 qentry->have_irq = 0;
3002 qentry->rsp = NULL;
3003 }
3004
3005 /* Enable MSI-X vectors for the base queue */
3006 for (i = 0; i < 2; i++) {
3007 qentry = &ha->msix_entries[i];
3008 if (IS_P3P_TYPE(ha))
3009 ret = request_irq(qentry->vector,
3010 qla82xx_msix_entries[i].handler,
3011 0, qla82xx_msix_entries[i].name, rsp);
3012 else
3013 ret = request_irq(qentry->vector,
3014 msix_entries[i].handler,
3015 0, msix_entries[i].name, rsp);
3016 if (ret)
3017 goto msix_register_fail;
3018 qentry->have_irq = 1;
3019 qentry->rsp = rsp;
3020 rsp->msix = qentry;
3021 }
3022
3023 /*
3024 * If target mode is enable, also request the vector for the ATIO
3025 * queue.
3026 */
3027 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3028 qentry = &ha->msix_entries[ATIO_VECTOR];
3029 ret = request_irq(qentry->vector,
3030 qla83xx_msix_entries[ATIO_VECTOR].handler,
3031 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3032 qentry->have_irq = 1;
3033 qentry->rsp = rsp;
3034 rsp->msix = qentry;
3035 }
3036
3037 msix_register_fail:
3038 if (ret) {
3039 ql_log(ql_log_fatal, vha, 0x00cb,
3040 "MSI-X: unable to register handler -- %x/%d.\n",
3041 qentry->vector, ret);
3042 qla24xx_disable_msix(ha);
3043 ha->mqenable = 0;
3044 goto msix_out;
3045 }
3046
3047 /* Enable MSI-X vector for response queue update for queue 0 */
3048 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3049 if (ha->msixbase && ha->mqiobase &&
3050 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3051 ha->mqenable = 1;
3052 } else
3053 if (ha->mqiobase
3054 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3055 ha->mqenable = 1;
3056 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3057 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3058 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3059 ql_dbg(ql_dbg_init, vha, 0x0055,
3060 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3061 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3062
3063 msix_out:
3064 kfree(entries);
3065 return ret;
3066 }
3067
3068 int
3069 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3070 {
3071 int ret = QLA_FUNCTION_FAILED;
3072 device_reg_t *reg = ha->iobase;
3073 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3074
3075 /* If possible, enable MSI-X. */
3076 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3077 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3078 !IS_QLA27XX(ha))
3079 goto skip_msi;
3080
3081 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3082 (ha->pdev->subsystem_device == 0x7040 ||
3083 ha->pdev->subsystem_device == 0x7041 ||
3084 ha->pdev->subsystem_device == 0x1705)) {
3085 ql_log(ql_log_warn, vha, 0x0034,
3086 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3087 ha->pdev->subsystem_vendor,
3088 ha->pdev->subsystem_device);
3089 goto skip_msi;
3090 }
3091
3092 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3093 ql_log(ql_log_warn, vha, 0x0035,
3094 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3095 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3096 goto skip_msix;
3097 }
3098
3099 ret = qla24xx_enable_msix(ha, rsp);
3100 if (!ret) {
3101 ql_dbg(ql_dbg_init, vha, 0x0036,
3102 "MSI-X: Enabled (0x%X, 0x%X).\n",
3103 ha->chip_revision, ha->fw_attributes);
3104 goto clear_risc_ints;
3105 }
3106
3107 skip_msix:
3108
3109 ql_log(ql_log_info, vha, 0x0037,
3110 "Falling back-to MSI mode -%d.\n", ret);
3111
3112 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3113 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3114 !IS_QLA27XX(ha))
3115 goto skip_msi;
3116
3117 ret = pci_enable_msi(ha->pdev);
3118 if (!ret) {
3119 ql_dbg(ql_dbg_init, vha, 0x0038,
3120 "MSI: Enabled.\n");
3121 ha->flags.msi_enabled = 1;
3122 } else
3123 ql_log(ql_log_warn, vha, 0x0039,
3124 "Falling back-to INTa mode -- %d.\n", ret);
3125 skip_msi:
3126
3127 /* Skip INTx on ISP82xx. */
3128 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3129 return QLA_FUNCTION_FAILED;
3130
3131 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3132 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3133 QLA2XXX_DRIVER_NAME, rsp);
3134 if (ret) {
3135 ql_log(ql_log_warn, vha, 0x003a,
3136 "Failed to reserve interrupt %d already in use.\n",
3137 ha->pdev->irq);
3138 goto fail;
3139 } else if (!ha->flags.msi_enabled) {
3140 ql_dbg(ql_dbg_init, vha, 0x0125,
3141 "INTa mode: Enabled.\n");
3142 ha->flags.mr_intr_valid = 1;
3143 }
3144
3145 clear_risc_ints:
3146 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3147 goto fail;
3148
3149 spin_lock_irq(&ha->hardware_lock);
3150 WRT_REG_WORD(&reg->isp.semaphore, 0);
3151 spin_unlock_irq(&ha->hardware_lock);
3152
3153 fail:
3154 return ret;
3155 }
3156
3157 void
3158 qla2x00_free_irqs(scsi_qla_host_t *vha)
3159 {
3160 struct qla_hw_data *ha = vha->hw;
3161 struct rsp_que *rsp;
3162
3163 /*
3164 * We need to check that ha->rsp_q_map is valid in case we are called
3165 * from a probe failure context.
3166 */
3167 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3168 return;
3169 rsp = ha->rsp_q_map[0];
3170
3171 if (ha->flags.msix_enabled)
3172 qla24xx_disable_msix(ha);
3173 else if (ha->flags.msi_enabled) {
3174 free_irq(ha->pdev->irq, rsp);
3175 pci_disable_msi(ha->pdev);
3176 } else
3177 free_irq(ha->pdev->irq, rsp);
3178 }
3179
3180
3181 int qla25xx_request_irq(struct rsp_que *rsp)
3182 {
3183 struct qla_hw_data *ha = rsp->hw;
3184 struct qla_init_msix_entry *intr = &msix_entries[2];
3185 struct qla_msix_entry *msix = rsp->msix;
3186 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3187 int ret;
3188
3189 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3190 if (ret) {
3191 ql_log(ql_log_fatal, vha, 0x00e6,
3192 "MSI-X: Unable to register handler -- %x/%d.\n",
3193 msix->vector, ret);
3194 return ret;
3195 }
3196 msix->have_irq = 1;
3197 msix->rsp = rsp;
3198 return ret;
3199 }
Linux with added FPC-III support