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ARM: fix put_user() for gcc-8
[linux/fpc-iii.git] / drivers / scsi / qla2xxx / qla_isr.c
blob440d79e6aea5d8df7aaead40a5a36420aa831a33
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 && !pci_channel_offline(vha->hw->pdev)) {
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 WARN_ON_ONCE(ha->mbx_count > 32);
272 mboxes = (1ULL << ha->mbx_count) - 1;
273 if (!ha->mcp)
274 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
275 else
276 mboxes = ha->mcp->in_mb;
277
278 /* Load return mailbox registers. */
279 ha->flags.mbox_int = 1;
280 ha->mailbox_out[0] = mb0;
281 mboxes >>= 1;
282 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
283
284 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
285 if (IS_QLA2200(ha) && cnt == 8)
286 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
287 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
288 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
289 else if (mboxes & BIT_0)
290 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
291
292 wptr++;
293 mboxes >>= 1;
294 }
295 }
296
297 static void
298 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
299 {
300 static char *event[] =
301 { "Complete", "Request Notification", "Time Extension" };
302 int rval;
303 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
304 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
305 uint16_t __iomem *wptr;
306 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
307
308 /* Seed data -- mailbox1 -> mailbox7. */
309 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
310 wptr = (uint16_t __iomem *)&reg24->mailbox1;
311 else if (IS_QLA8044(vha->hw))
312 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
313 else
314 return;
315
316 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
317 mb[cnt] = RD_REG_WORD(wptr);
318
319 ql_dbg(ql_dbg_async, vha, 0x5021,
320 "Inter-Driver Communication %s -- "
321 "%04x %04x %04x %04x %04x %04x %04x.\n",
322 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
323 mb[4], mb[5], mb[6]);
324 switch (aen) {
325 /* Handle IDC Error completion case. */
326 case MBA_IDC_COMPLETE:
327 if (mb[1] >> 15) {
328 vha->hw->flags.idc_compl_status = 1;
329 if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
330 complete(&vha->hw->dcbx_comp);
331 }
332 break;
333
334 case MBA_IDC_NOTIFY:
335 /* Acknowledgement needed? [Notify && non-zero timeout]. */
336 timeout = (descr >> 8) & 0xf;
337 ql_dbg(ql_dbg_async, vha, 0x5022,
338 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
339 vha->host_no, event[aen & 0xff], timeout);
340
341 if (!timeout)
342 return;
343 rval = qla2x00_post_idc_ack_work(vha, mb);
344 if (rval != QLA_SUCCESS)
345 ql_log(ql_log_warn, vha, 0x5023,
346 "IDC failed to post ACK.\n");
347 break;
348 case MBA_IDC_TIME_EXT:
349 vha->hw->idc_extend_tmo = descr;
350 ql_dbg(ql_dbg_async, vha, 0x5087,
351 "%lu Inter-Driver Communication %s -- "
352 "Extend timeout by=%d.\n",
353 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
354 break;
355 }
356 }
357
358 #define LS_UNKNOWN 2
359 const char *
360 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
361 {
362 static const char *const link_speeds[] = {
363 "1", "2", "?", "4", "8", "16", "32", "10"
364 };
365 #define QLA_LAST_SPEED 7
366
367 if (IS_QLA2100(ha) || IS_QLA2200(ha))
368 return link_speeds[0];
369 else if (speed == 0x13)
370 return link_speeds[QLA_LAST_SPEED];
371 else if (speed < QLA_LAST_SPEED)
372 return link_speeds[speed];
373 else
374 return link_speeds[LS_UNKNOWN];
375 }
376
377 static void
378 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
379 {
380 struct qla_hw_data *ha = vha->hw;
381
382 /*
383 * 8200 AEN Interpretation:
384 * mb[0] = AEN code
385 * mb[1] = AEN Reason code
386 * mb[2] = LSW of Peg-Halt Status-1 Register
387 * mb[6] = MSW of Peg-Halt Status-1 Register
388 * mb[3] = LSW of Peg-Halt Status-2 register
389 * mb[7] = MSW of Peg-Halt Status-2 register
390 * mb[4] = IDC Device-State Register value
391 * mb[5] = IDC Driver-Presence Register value
392 */
393 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
394 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
395 mb[0], mb[1], mb[2], mb[6]);
396 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
397 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
398 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
399
400 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
401 IDC_HEARTBEAT_FAILURE)) {
402 ha->flags.nic_core_hung = 1;
403 ql_log(ql_log_warn, vha, 0x5060,
404 "83XX: F/W Error Reported: Check if reset required.\n");
405
406 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
407 uint32_t protocol_engine_id, fw_err_code, err_level;
408
409 /*
410 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
411 * - PEG-Halt Status-1 Register:
412 * (LSW = mb[2], MSW = mb[6])
413 * Bits 0-7 = protocol-engine ID
414 * Bits 8-28 = f/w error code
415 * Bits 29-31 = Error-level
416 * Error-level 0x1 = Non-Fatal error
417 * Error-level 0x2 = Recoverable Fatal error
418 * Error-level 0x4 = UnRecoverable Fatal error
419 * - PEG-Halt Status-2 Register:
420 * (LSW = mb[3], MSW = mb[7])
421 */
422 protocol_engine_id = (mb[2] & 0xff);
423 fw_err_code = (((mb[2] & 0xff00) >> 8) |
424 ((mb[6] & 0x1fff) << 8));
425 err_level = ((mb[6] & 0xe000) >> 13);
426 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
427 "Register: protocol_engine_id=0x%x "
428 "fw_err_code=0x%x err_level=0x%x.\n",
429 protocol_engine_id, fw_err_code, err_level);
430 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
431 "Register: 0x%x%x.\n", mb[7], mb[3]);
432 if (err_level == ERR_LEVEL_NON_FATAL) {
433 ql_log(ql_log_warn, vha, 0x5063,
434 "Not a fatal error, f/w has recovered "
435 "iteself.\n");
436 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
437 ql_log(ql_log_fatal, vha, 0x5064,
438 "Recoverable Fatal error: Chip reset "
439 "required.\n");
440 qla83xx_schedule_work(vha,
441 QLA83XX_NIC_CORE_RESET);
442 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
443 ql_log(ql_log_fatal, vha, 0x5065,
444 "Unrecoverable Fatal error: Set FAILED "
445 "state, reboot required.\n");
446 qla83xx_schedule_work(vha,
447 QLA83XX_NIC_CORE_UNRECOVERABLE);
448 }
449 }
450
451 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
452 uint16_t peg_fw_state, nw_interface_link_up;
453 uint16_t nw_interface_signal_detect, sfp_status;
454 uint16_t htbt_counter, htbt_monitor_enable;
455 uint16_t sfp_additonal_info, sfp_multirate;
456 uint16_t sfp_tx_fault, link_speed, dcbx_status;
457
458 /*
459 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
460 * - PEG-to-FC Status Register:
461 * (LSW = mb[2], MSW = mb[6])
462 * Bits 0-7 = Peg-Firmware state
463 * Bit 8 = N/W Interface Link-up
464 * Bit 9 = N/W Interface signal detected
465 * Bits 10-11 = SFP Status
466 * SFP Status 0x0 = SFP+ transceiver not expected
467 * SFP Status 0x1 = SFP+ transceiver not present
468 * SFP Status 0x2 = SFP+ transceiver invalid
469 * SFP Status 0x3 = SFP+ transceiver present and
470 * valid
471 * Bits 12-14 = Heartbeat Counter
472 * Bit 15 = Heartbeat Monitor Enable
473 * Bits 16-17 = SFP Additional Info
474 * SFP info 0x0 = Unregocnized transceiver for
475 * Ethernet
476 * SFP info 0x1 = SFP+ brand validation failed
477 * SFP info 0x2 = SFP+ speed validation failed
478 * SFP info 0x3 = SFP+ access error
479 * Bit 18 = SFP Multirate
480 * Bit 19 = SFP Tx Fault
481 * Bits 20-22 = Link Speed
482 * Bits 23-27 = Reserved
483 * Bits 28-30 = DCBX Status
484 * DCBX Status 0x0 = DCBX Disabled
485 * DCBX Status 0x1 = DCBX Enabled
486 * DCBX Status 0x2 = DCBX Exchange error
487 * Bit 31 = Reserved
488 */
489 peg_fw_state = (mb[2] & 0x00ff);
490 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
491 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
492 sfp_status = ((mb[2] & 0x0c00) >> 10);
493 htbt_counter = ((mb[2] & 0x7000) >> 12);
494 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
495 sfp_additonal_info = (mb[6] & 0x0003);
496 sfp_multirate = ((mb[6] & 0x0004) >> 2);
497 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
498 link_speed = ((mb[6] & 0x0070) >> 4);
499 dcbx_status = ((mb[6] & 0x7000) >> 12);
500
501 ql_log(ql_log_warn, vha, 0x5066,
502 "Peg-to-Fc Status Register:\n"
503 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
504 "nw_interface_signal_detect=0x%x"
505 "\nsfp_statis=0x%x.\n ", peg_fw_state,
506 nw_interface_link_up, nw_interface_signal_detect,
507 sfp_status);
508 ql_log(ql_log_warn, vha, 0x5067,
509 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
510 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
511 htbt_counter, htbt_monitor_enable,
512 sfp_additonal_info, sfp_multirate);
513 ql_log(ql_log_warn, vha, 0x5068,
514 "sfp_tx_fault=0x%x, link_state=0x%x, "
515 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
516 dcbx_status);
517
518 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
519 }
520
521 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
522 ql_log(ql_log_warn, vha, 0x5069,
523 "Heartbeat Failure encountered, chip reset "
524 "required.\n");
525
526 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
527 }
528 }
529
530 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
531 ql_log(ql_log_info, vha, 0x506a,
532 "IDC Device-State changed = 0x%x.\n", mb[4]);
533 if (ha->flags.nic_core_reset_owner)
534 return;
535 qla83xx_schedule_work(vha, MBA_IDC_AEN);
536 }
537 }
538
539 int
540 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
541 {
542 struct qla_hw_data *ha = vha->hw;
543 scsi_qla_host_t *vp;
544 uint32_t vp_did;
545 unsigned long flags;
546 int ret = 0;
547
548 if (!ha->num_vhosts)
549 return ret;
550
551 spin_lock_irqsave(&ha->vport_slock, flags);
552 list_for_each_entry(vp, &ha->vp_list, list) {
553 vp_did = vp->d_id.b24;
554 if (vp_did == rscn_entry) {
555 ret = 1;
556 break;
557 }
558 }
559 spin_unlock_irqrestore(&ha->vport_slock, flags);
560
561 return ret;
562 }
563
564 static inline fc_port_t *
565 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
566 {
567 fc_port_t *fcport;
568
569 list_for_each_entry(fcport, &vha->vp_fcports, list)
570 if (fcport->loop_id == loop_id)
571 return fcport;
572 return NULL;
573 }
574
575 /**
576 * qla2x00_async_event() - Process aynchronous events.
577 * @ha: SCSI driver HA context
578 * @mb: Mailbox registers (0 - 3)
579 */
580 void
581 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
582 {
583 uint16_t handle_cnt;
584 uint16_t cnt, mbx;
585 uint32_t handles[5];
586 struct qla_hw_data *ha = vha->hw;
587 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
588 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
589 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
590 uint32_t rscn_entry, host_pid;
591 unsigned long flags;
592 fc_port_t *fcport = NULL;
593
594 /* Setup to process RIO completion. */
595 handle_cnt = 0;
596 if (IS_CNA_CAPABLE(ha))
597 goto skip_rio;
598 switch (mb[0]) {
599 case MBA_SCSI_COMPLETION:
600 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
601 handle_cnt = 1;
602 break;
603 case MBA_CMPLT_1_16BIT:
604 handles[0] = mb[1];
605 handle_cnt = 1;
606 mb[0] = MBA_SCSI_COMPLETION;
607 break;
608 case MBA_CMPLT_2_16BIT:
609 handles[0] = mb[1];
610 handles[1] = mb[2];
611 handle_cnt = 2;
612 mb[0] = MBA_SCSI_COMPLETION;
613 break;
614 case MBA_CMPLT_3_16BIT:
615 handles[0] = mb[1];
616 handles[1] = mb[2];
617 handles[2] = mb[3];
618 handle_cnt = 3;
619 mb[0] = MBA_SCSI_COMPLETION;
620 break;
621 case MBA_CMPLT_4_16BIT:
622 handles[0] = mb[1];
623 handles[1] = mb[2];
624 handles[2] = mb[3];
625 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
626 handle_cnt = 4;
627 mb[0] = MBA_SCSI_COMPLETION;
628 break;
629 case MBA_CMPLT_5_16BIT:
630 handles[0] = mb[1];
631 handles[1] = mb[2];
632 handles[2] = mb[3];
633 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
634 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
635 handle_cnt = 5;
636 mb[0] = MBA_SCSI_COMPLETION;
637 break;
638 case MBA_CMPLT_2_32BIT:
639 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
640 handles[1] = le32_to_cpu(
641 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
642 RD_MAILBOX_REG(ha, reg, 6));
643 handle_cnt = 2;
644 mb[0] = MBA_SCSI_COMPLETION;
645 break;
646 default:
647 break;
648 }
649 skip_rio:
650 switch (mb[0]) {
651 case MBA_SCSI_COMPLETION: /* Fast Post */
652 if (!vha->flags.online)
653 break;
654
655 for (cnt = 0; cnt < handle_cnt; cnt++)
656 qla2x00_process_completed_request(vha, rsp->req,
657 handles[cnt]);
658 break;
659
660 case MBA_RESET: /* Reset */
661 ql_dbg(ql_dbg_async, vha, 0x5002,
662 "Asynchronous RESET.\n");
663
664 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
665 break;
666
667 case MBA_SYSTEM_ERR: /* System Error */
668 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
669 RD_REG_WORD(&reg24->mailbox7) : 0;
670 ql_log(ql_log_warn, vha, 0x5003,
671 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
672 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
673
674 ha->isp_ops->fw_dump(vha, 1);
675
676 if (IS_FWI2_CAPABLE(ha)) {
677 if (mb[1] == 0 && mb[2] == 0) {
678 ql_log(ql_log_fatal, vha, 0x5004,
679 "Unrecoverable Hardware Error: adapter "
680 "marked OFFLINE!\n");
681 vha->flags.online = 0;
682 vha->device_flags |= DFLG_DEV_FAILED;
683 } else {
684 /* Check to see if MPI timeout occurred */
685 if ((mbx & MBX_3) && (ha->port_no == 0))
686 set_bit(MPI_RESET_NEEDED,
687 &vha->dpc_flags);
688
689 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
690 }
691 } else if (mb[1] == 0) {
692 ql_log(ql_log_fatal, vha, 0x5005,
693 "Unrecoverable Hardware Error: adapter marked "
694 "OFFLINE!\n");
695 vha->flags.online = 0;
696 vha->device_flags |= DFLG_DEV_FAILED;
697 } else
698 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
699 break;
700
701 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
702 ql_log(ql_log_warn, vha, 0x5006,
703 "ISP Request Transfer Error (%x).\n", mb[1]);
704
705 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
706 break;
707
708 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
709 ql_log(ql_log_warn, vha, 0x5007,
710 "ISP Response Transfer Error.\n");
711
712 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
713 break;
714
715 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
716 ql_dbg(ql_dbg_async, vha, 0x5008,
717 "Asynchronous WAKEUP_THRES.\n");
718
719 break;
720 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
721 ql_dbg(ql_dbg_async, vha, 0x5009,
722 "LIP occurred (%x).\n", mb[1]);
723
724 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
725 atomic_set(&vha->loop_state, LOOP_DOWN);
726 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
727 qla2x00_mark_all_devices_lost(vha, 1);
728 }
729
730 if (vha->vp_idx) {
731 atomic_set(&vha->vp_state, VP_FAILED);
732 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
733 }
734
735 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
736 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
737
738 vha->flags.management_server_logged_in = 0;
739 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
740 break;
741
742 case MBA_LOOP_UP: /* Loop Up Event */
743 if (IS_QLA2100(ha) || IS_QLA2200(ha))
744 ha->link_data_rate = PORT_SPEED_1GB;
745 else
746 ha->link_data_rate = mb[1];
747
748 ql_log(ql_log_info, vha, 0x500a,
749 "LOOP UP detected (%s Gbps).\n",
750 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
751
752 vha->flags.management_server_logged_in = 0;
753 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
754 break;
755
756 case MBA_LOOP_DOWN: /* Loop Down Event */
757 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
758 ? RD_REG_WORD(&reg24->mailbox4) : 0;
759 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
760 : mbx;
761 ql_log(ql_log_info, vha, 0x500b,
762 "LOOP DOWN detected (%x %x %x %x).\n",
763 mb[1], mb[2], mb[3], mbx);
764
765 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
766 atomic_set(&vha->loop_state, LOOP_DOWN);
767 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
768 /*
769 * In case of loop down, restore WWPN from
770 * NVRAM in case of FA-WWPN capable ISP
771 * Restore for Physical Port only
772 */
773 if (!vha->vp_idx) {
774 if (ha->flags.fawwpn_enabled) {
775 void *wwpn = ha->init_cb->port_name;
776 memcpy(vha->port_name, wwpn, WWN_SIZE);
777 fc_host_port_name(vha->host) =
778 wwn_to_u64(vha->port_name);
779 ql_dbg(ql_dbg_init + ql_dbg_verbose,
780 vha, 0x0144, "LOOP DOWN detected,"
781 "restore WWPN %016llx\n",
782 wwn_to_u64(vha->port_name));
783 }
784
785 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
786 }
787
788 vha->device_flags |= DFLG_NO_CABLE;
789 qla2x00_mark_all_devices_lost(vha, 1);
790 }
791
792 if (vha->vp_idx) {
793 atomic_set(&vha->vp_state, VP_FAILED);
794 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
795 }
796
797 vha->flags.management_server_logged_in = 0;
798 ha->link_data_rate = PORT_SPEED_UNKNOWN;
799 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
800 break;
801
802 case MBA_LIP_RESET: /* LIP reset occurred */
803 ql_dbg(ql_dbg_async, vha, 0x500c,
804 "LIP reset occurred (%x).\n", mb[1]);
805
806 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
807 atomic_set(&vha->loop_state, LOOP_DOWN);
808 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
809 qla2x00_mark_all_devices_lost(vha, 1);
810 }
811
812 if (vha->vp_idx) {
813 atomic_set(&vha->vp_state, VP_FAILED);
814 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
815 }
816
817 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
818
819 ha->operating_mode = LOOP;
820 vha->flags.management_server_logged_in = 0;
821 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
822 break;
823
824 /* case MBA_DCBX_COMPLETE: */
825 case MBA_POINT_TO_POINT: /* Point-to-Point */
826 if (IS_QLA2100(ha))
827 break;
828
829 if (IS_CNA_CAPABLE(ha)) {
830 ql_dbg(ql_dbg_async, vha, 0x500d,
831 "DCBX Completed -- %04x %04x %04x.\n",
832 mb[1], mb[2], mb[3]);
833 if (ha->notify_dcbx_comp && !vha->vp_idx)
834 complete(&ha->dcbx_comp);
835
836 } else
837 ql_dbg(ql_dbg_async, vha, 0x500e,
838 "Asynchronous P2P MODE received.\n");
839
840 /*
841 * Until there's a transition from loop down to loop up, treat
842 * this as loop down only.
843 */
844 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
845 atomic_set(&vha->loop_state, LOOP_DOWN);
846 if (!atomic_read(&vha->loop_down_timer))
847 atomic_set(&vha->loop_down_timer,
848 LOOP_DOWN_TIME);
849 qla2x00_mark_all_devices_lost(vha, 1);
850 }
851
852 if (vha->vp_idx) {
853 atomic_set(&vha->vp_state, VP_FAILED);
854 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
855 }
856
857 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
858 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
859
860 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
861 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
862
863 ha->flags.gpsc_supported = 1;
864 vha->flags.management_server_logged_in = 0;
865 break;
866
867 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
868 if (IS_QLA2100(ha))
869 break;
870
871 ql_dbg(ql_dbg_async, vha, 0x500f,
872 "Configuration change detected: value=%x.\n", mb[1]);
873
874 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
875 atomic_set(&vha->loop_state, LOOP_DOWN);
876 if (!atomic_read(&vha->loop_down_timer))
877 atomic_set(&vha->loop_down_timer,
878 LOOP_DOWN_TIME);
879 qla2x00_mark_all_devices_lost(vha, 1);
880 }
881
882 if (vha->vp_idx) {
883 atomic_set(&vha->vp_state, VP_FAILED);
884 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
885 }
886
887 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
888 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
889 break;
890
891 case MBA_PORT_UPDATE: /* Port database update */
892 /*
893 * Handle only global and vn-port update events
894 *
895 * Relevant inputs:
896 * mb[1] = N_Port handle of changed port
897 * OR 0xffff for global event
898 * mb[2] = New login state
899 * 7 = Port logged out
900 * mb[3] = LSB is vp_idx, 0xff = all vps
901 *
902 * Skip processing if:
903 * Event is global, vp_idx is NOT all vps,
904 * vp_idx does not match
905 * Event is not global, vp_idx does not match
906 */
907 if (IS_QLA2XXX_MIDTYPE(ha) &&
908 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
909 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
910 break;
911
912 if (mb[2] == 0x7) {
913 ql_dbg(ql_dbg_async, vha, 0x5010,
914 "Port %s %04x %04x %04x.\n",
915 mb[1] == 0xffff ? "unavailable" : "logout",
916 mb[1], mb[2], mb[3]);
917
918 if (mb[1] == 0xffff)
919 goto global_port_update;
920
921 /* Port logout */
922 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
923 if (!fcport)
924 break;
925 if (atomic_read(&fcport->state) != FCS_ONLINE)
926 break;
927 ql_dbg(ql_dbg_async, vha, 0x508a,
928 "Marking port lost loopid=%04x portid=%06x.\n",
929 fcport->loop_id, fcport->d_id.b24);
930 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
931 break;
932
933 global_port_update:
934 /* Port unavailable. */
935 ql_log(ql_log_warn, vha, 0x505e,
936 "Link is offline.\n");
937
938 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
939 atomic_set(&vha->loop_state, LOOP_DOWN);
940 atomic_set(&vha->loop_down_timer,
941 LOOP_DOWN_TIME);
942 vha->device_flags |= DFLG_NO_CABLE;
943 qla2x00_mark_all_devices_lost(vha, 1);
944 }
945
946 if (vha->vp_idx) {
947 atomic_set(&vha->vp_state, VP_FAILED);
948 fc_vport_set_state(vha->fc_vport,
949 FC_VPORT_FAILED);
950 qla2x00_mark_all_devices_lost(vha, 1);
951 }
952
953 vha->flags.management_server_logged_in = 0;
954 ha->link_data_rate = PORT_SPEED_UNKNOWN;
955 break;
956 }
957
958 /*
959 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
960 * event etc. earlier indicating loop is down) then process
961 * it. Otherwise ignore it and Wait for RSCN to come in.
962 */
963 atomic_set(&vha->loop_down_timer, 0);
964 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
965 atomic_read(&vha->loop_state) != LOOP_DEAD) {
966 ql_dbg(ql_dbg_async, vha, 0x5011,
967 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
968 mb[1], mb[2], mb[3]);
969
970 qlt_async_event(mb[0], vha, mb);
971 break;
972 }
973
974 ql_dbg(ql_dbg_async, vha, 0x5012,
975 "Port database changed %04x %04x %04x.\n",
976 mb[1], mb[2], mb[3]);
977
978 /*
979 * Mark all devices as missing so we will login again.
980 */
981 atomic_set(&vha->loop_state, LOOP_UP);
982
983 qla2x00_mark_all_devices_lost(vha, 1);
984
985 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
986 set_bit(SCR_PENDING, &vha->dpc_flags);
987
988 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
989 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
990 set_bit(VP_CONFIG_OK, &vha->vp_flags);
991
992 qlt_async_event(mb[0], vha, mb);
993 break;
994
995 case MBA_RSCN_UPDATE: /* State Change Registration */
996 /* Check if the Vport has issued a SCR */
997 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
998 break;
999 /* Only handle SCNs for our Vport index. */
1000 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1001 break;
1002
1003 ql_dbg(ql_dbg_async, vha, 0x5013,
1004 "RSCN database changed -- %04x %04x %04x.\n",
1005 mb[1], mb[2], mb[3]);
1006
1007 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1008 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1009 | vha->d_id.b.al_pa;
1010 if (rscn_entry == host_pid) {
1011 ql_dbg(ql_dbg_async, vha, 0x5014,
1012 "Ignoring RSCN update to local host "
1013 "port ID (%06x).\n", host_pid);
1014 break;
1015 }
1016
1017 /* Ignore reserved bits from RSCN-payload. */
1018 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1019
1020 /* Skip RSCNs for virtual ports on the same physical port */
1021 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1022 break;
1023
1024 /*
1025 * Search for the rport related to this RSCN entry and mark it
1026 * as lost.
1027 */
1028 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1029 if (atomic_read(&fcport->state) != FCS_ONLINE)
1030 continue;
1031 if (fcport->d_id.b24 == rscn_entry) {
1032 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1033 break;
1034 }
1035 }
1036
1037 atomic_set(&vha->loop_down_timer, 0);
1038 vha->flags.management_server_logged_in = 0;
1039
1040 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1041 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1042 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1043 break;
1044
1045 /* case MBA_RIO_RESPONSE: */
1046 case MBA_ZIO_RESPONSE:
1047 ql_dbg(ql_dbg_async, vha, 0x5015,
1048 "[R|Z]IO update completion.\n");
1049
1050 if (IS_FWI2_CAPABLE(ha))
1051 qla24xx_process_response_queue(vha, rsp);
1052 else
1053 qla2x00_process_response_queue(rsp);
1054 break;
1055
1056 case MBA_DISCARD_RND_FRAME:
1057 ql_dbg(ql_dbg_async, vha, 0x5016,
1058 "Discard RND Frame -- %04x %04x %04x.\n",
1059 mb[1], mb[2], mb[3]);
1060 break;
1061
1062 case MBA_TRACE_NOTIFICATION:
1063 ql_dbg(ql_dbg_async, vha, 0x5017,
1064 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1065 break;
1066
1067 case MBA_ISP84XX_ALERT:
1068 ql_dbg(ql_dbg_async, vha, 0x5018,
1069 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1070 mb[1], mb[2], mb[3]);
1071
1072 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1073 switch (mb[1]) {
1074 case A84_PANIC_RECOVERY:
1075 ql_log(ql_log_info, vha, 0x5019,
1076 "Alert 84XX: panic recovery %04x %04x.\n",
1077 mb[2], mb[3]);
1078 break;
1079 case A84_OP_LOGIN_COMPLETE:
1080 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1081 ql_log(ql_log_info, vha, 0x501a,
1082 "Alert 84XX: firmware version %x.\n",
1083 ha->cs84xx->op_fw_version);
1084 break;
1085 case A84_DIAG_LOGIN_COMPLETE:
1086 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1087 ql_log(ql_log_info, vha, 0x501b,
1088 "Alert 84XX: diagnostic firmware version %x.\n",
1089 ha->cs84xx->diag_fw_version);
1090 break;
1091 case A84_GOLD_LOGIN_COMPLETE:
1092 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1093 ha->cs84xx->fw_update = 1;
1094 ql_log(ql_log_info, vha, 0x501c,
1095 "Alert 84XX: gold firmware version %x.\n",
1096 ha->cs84xx->gold_fw_version);
1097 break;
1098 default:
1099 ql_log(ql_log_warn, vha, 0x501d,
1100 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1101 mb[1], mb[2], mb[3]);
1102 }
1103 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1104 break;
1105 case MBA_DCBX_START:
1106 ql_dbg(ql_dbg_async, vha, 0x501e,
1107 "DCBX Started -- %04x %04x %04x.\n",
1108 mb[1], mb[2], mb[3]);
1109 break;
1110 case MBA_DCBX_PARAM_UPDATE:
1111 ql_dbg(ql_dbg_async, vha, 0x501f,
1112 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1113 mb[1], mb[2], mb[3]);
1114 break;
1115 case MBA_FCF_CONF_ERR:
1116 ql_dbg(ql_dbg_async, vha, 0x5020,
1117 "FCF Configuration Error -- %04x %04x %04x.\n",
1118 mb[1], mb[2], mb[3]);
1119 break;
1120 case MBA_IDC_NOTIFY:
1121 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1122 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1123 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1124 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1125 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1126 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1127 /*
1128 * Extend loop down timer since port is active.
1129 */
1130 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1131 atomic_set(&vha->loop_down_timer,
1132 LOOP_DOWN_TIME);
1133 qla2xxx_wake_dpc(vha);
1134 }
1135 }
1136 case MBA_IDC_COMPLETE:
1137 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1138 complete(&ha->lb_portup_comp);
1139 /* Fallthru */
1140 case MBA_IDC_TIME_EXT:
1141 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1142 IS_QLA8044(ha))
1143 qla81xx_idc_event(vha, mb[0], mb[1]);
1144 break;
1145
1146 case MBA_IDC_AEN:
1147 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1148 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1149 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1150 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1151 qla83xx_handle_8200_aen(vha, mb);
1152 break;
1153
1154 case MBA_DPORT_DIAGNOSTICS:
1155 ql_dbg(ql_dbg_async, vha, 0x5052,
1156 "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
1157 mb[1] == 0 ? "start" :
1158 mb[1] == 1 ? "done (ok)" :
1159 mb[1] == 2 ? "done (error)" : "other");
1160 break;
1161
1162 default:
1163 ql_dbg(ql_dbg_async, vha, 0x5057,
1164 "Unknown AEN:%04x %04x %04x %04x\n",
1165 mb[0], mb[1], mb[2], mb[3]);
1166 }
1167
1168 qlt_async_event(mb[0], vha, mb);
1169
1170 if (!vha->vp_idx && ha->num_vhosts)
1171 qla2x00_alert_all_vps(rsp, mb);
1172 }
1173
1174 /**
1175 * qla2x00_process_completed_request() - Process a Fast Post response.
1176 * @ha: SCSI driver HA context
1177 * @index: SRB index
1178 */
1179 void
1180 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1181 struct req_que *req, uint32_t index)
1182 {
1183 srb_t *sp;
1184 struct qla_hw_data *ha = vha->hw;
1185
1186 /* Validate handle. */
1187 if (index >= req->num_outstanding_cmds) {
1188 ql_log(ql_log_warn, vha, 0x3014,
1189 "Invalid SCSI command index (%x).\n", index);
1190
1191 if (IS_P3P_TYPE(ha))
1192 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1193 else
1194 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1195 return;
1196 }
1197
1198 sp = req->outstanding_cmds[index];
1199 if (sp) {
1200 /* Free outstanding command slot. */
1201 req->outstanding_cmds[index] = NULL;
1202
1203 /* Save ISP completion status */
1204 sp->done(ha, sp, DID_OK << 16);
1205 } else {
1206 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1207
1208 if (IS_P3P_TYPE(ha))
1209 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1210 else
1211 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1212 }
1213 }
1214
1215 srb_t *
1216 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1217 struct req_que *req, void *iocb)
1218 {
1219 struct qla_hw_data *ha = vha->hw;
1220 sts_entry_t *pkt = iocb;
1221 srb_t *sp = NULL;
1222 uint16_t index;
1223
1224 index = LSW(pkt->handle);
1225 if (index >= req->num_outstanding_cmds) {
1226 ql_log(ql_log_warn, vha, 0x5031,
1227 "Invalid command index (%x).\n", index);
1228 if (IS_P3P_TYPE(ha))
1229 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1230 else
1231 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1232 goto done;
1233 }
1234 sp = req->outstanding_cmds[index];
1235 if (!sp) {
1236 ql_log(ql_log_warn, vha, 0x5032,
1237 "Invalid completion handle (%x) -- timed-out.\n", index);
1238 return sp;
1239 }
1240 if (sp->handle != index) {
1241 ql_log(ql_log_warn, vha, 0x5033,
1242 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1243 return NULL;
1244 }
1245
1246 req->outstanding_cmds[index] = NULL;
1247
1248 done:
1249 return sp;
1250 }
1251
1252 static void
1253 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1254 struct mbx_entry *mbx)
1255 {
1256 const char func[] = "MBX-IOCB";
1257 const char *type;
1258 fc_port_t *fcport;
1259 srb_t *sp;
1260 struct srb_iocb *lio;
1261 uint16_t *data;
1262 uint16_t status;
1263
1264 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1265 if (!sp)
1266 return;
1267
1268 lio = &sp->u.iocb_cmd;
1269 type = sp->name;
1270 fcport = sp->fcport;
1271 data = lio->u.logio.data;
1272
1273 data[0] = MBS_COMMAND_ERROR;
1274 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1275 QLA_LOGIO_LOGIN_RETRIED : 0;
1276 if (mbx->entry_status) {
1277 ql_dbg(ql_dbg_async, vha, 0x5043,
1278 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1279 "entry-status=%x status=%x state-flag=%x "
1280 "status-flags=%x.\n", type, sp->handle,
1281 fcport->d_id.b.domain, fcport->d_id.b.area,
1282 fcport->d_id.b.al_pa, mbx->entry_status,
1283 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1284 le16_to_cpu(mbx->status_flags));
1285
1286 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1287 (uint8_t *)mbx, sizeof(*mbx));
1288
1289 goto logio_done;
1290 }
1291
1292 status = le16_to_cpu(mbx->status);
1293 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1294 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1295 status = 0;
1296 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1297 ql_dbg(ql_dbg_async, vha, 0x5045,
1298 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1299 type, sp->handle, fcport->d_id.b.domain,
1300 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1301 le16_to_cpu(mbx->mb1));
1302
1303 data[0] = MBS_COMMAND_COMPLETE;
1304 if (sp->type == SRB_LOGIN_CMD) {
1305 fcport->port_type = FCT_TARGET;
1306 if (le16_to_cpu(mbx->mb1) & BIT_0)
1307 fcport->port_type = FCT_INITIATOR;
1308 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1309 fcport->flags |= FCF_FCP2_DEVICE;
1310 }
1311 goto logio_done;
1312 }
1313
1314 data[0] = le16_to_cpu(mbx->mb0);
1315 switch (data[0]) {
1316 case MBS_PORT_ID_USED:
1317 data[1] = le16_to_cpu(mbx->mb1);
1318 break;
1319 case MBS_LOOP_ID_USED:
1320 break;
1321 default:
1322 data[0] = MBS_COMMAND_ERROR;
1323 break;
1324 }
1325
1326 ql_log(ql_log_warn, vha, 0x5046,
1327 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1328 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1329 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1330 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1331 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1332 le16_to_cpu(mbx->mb7));
1333
1334 logio_done:
1335 sp->done(vha, sp, 0);
1336 }
1337
1338 static void
1339 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1340 sts_entry_t *pkt, int iocb_type)
1341 {
1342 const char func[] = "CT_IOCB";
1343 const char *type;
1344 srb_t *sp;
1345 struct fc_bsg_job *bsg_job;
1346 uint16_t comp_status;
1347 int res;
1348
1349 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1350 if (!sp)
1351 return;
1352
1353 bsg_job = sp->u.bsg_job;
1354
1355 type = "ct pass-through";
1356
1357 comp_status = le16_to_cpu(pkt->comp_status);
1358
1359 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1360 * fc payload to the caller
1361 */
1362 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1363 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1364
1365 if (comp_status != CS_COMPLETE) {
1366 if (comp_status == CS_DATA_UNDERRUN) {
1367 res = DID_OK << 16;
1368 bsg_job->reply->reply_payload_rcv_len =
1369 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1370
1371 ql_log(ql_log_warn, vha, 0x5048,
1372 "CT pass-through-%s error "
1373 "comp_status-status=0x%x total_byte = 0x%x.\n",
1374 type, comp_status,
1375 bsg_job->reply->reply_payload_rcv_len);
1376 } else {
1377 ql_log(ql_log_warn, vha, 0x5049,
1378 "CT pass-through-%s error "
1379 "comp_status-status=0x%x.\n", type, comp_status);
1380 res = DID_ERROR << 16;
1381 bsg_job->reply->reply_payload_rcv_len = 0;
1382 }
1383 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1384 (uint8_t *)pkt, sizeof(*pkt));
1385 } else {
1386 res = DID_OK << 16;
1387 bsg_job->reply->reply_payload_rcv_len =
1388 bsg_job->reply_payload.payload_len;
1389 bsg_job->reply_len = 0;
1390 }
1391
1392 sp->done(vha, sp, res);
1393 }
1394
1395 static void
1396 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1397 struct sts_entry_24xx *pkt, int iocb_type)
1398 {
1399 const char func[] = "ELS_CT_IOCB";
1400 const char *type;
1401 srb_t *sp;
1402 struct fc_bsg_job *bsg_job;
1403 uint16_t comp_status;
1404 uint32_t fw_status[3];
1405 uint8_t* fw_sts_ptr;
1406 int res;
1407
1408 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1409 if (!sp)
1410 return;
1411 bsg_job = sp->u.bsg_job;
1412
1413 type = NULL;
1414 switch (sp->type) {
1415 case SRB_ELS_CMD_RPT:
1416 case SRB_ELS_CMD_HST:
1417 type = "els";
1418 break;
1419 case SRB_CT_CMD:
1420 type = "ct pass-through";
1421 break;
1422 default:
1423 ql_dbg(ql_dbg_user, vha, 0x503e,
1424 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1425 return;
1426 }
1427
1428 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1429 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1430 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1431
1432 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1433 * fc payload to the caller
1434 */
1435 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1436 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1437
1438 if (comp_status != CS_COMPLETE) {
1439 if (comp_status == CS_DATA_UNDERRUN) {
1440 res = DID_OK << 16;
1441 bsg_job->reply->reply_payload_rcv_len =
1442 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1443
1444 ql_dbg(ql_dbg_user, vha, 0x503f,
1445 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1446 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1447 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1448 le16_to_cpu(((struct els_sts_entry_24xx *)
1449 pkt)->total_byte_count));
1450 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1451 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1452 }
1453 else {
1454 ql_dbg(ql_dbg_user, vha, 0x5040,
1455 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1456 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1457 type, sp->handle, comp_status,
1458 le16_to_cpu(((struct els_sts_entry_24xx *)
1459 pkt)->error_subcode_1),
1460 le16_to_cpu(((struct els_sts_entry_24xx *)
1461 pkt)->error_subcode_2));
1462 res = DID_ERROR << 16;
1463 bsg_job->reply->reply_payload_rcv_len = 0;
1464 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1465 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1466 }
1467 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1468 (uint8_t *)pkt, sizeof(*pkt));
1469 }
1470 else {
1471 res = DID_OK << 16;
1472 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1473 bsg_job->reply_len = 0;
1474 }
1475
1476 sp->done(vha, sp, res);
1477 }
1478
1479 static void
1480 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1481 struct logio_entry_24xx *logio)
1482 {
1483 const char func[] = "LOGIO-IOCB";
1484 const char *type;
1485 fc_port_t *fcport;
1486 srb_t *sp;
1487 struct srb_iocb *lio;
1488 uint16_t *data;
1489 uint32_t iop[2];
1490
1491 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1492 if (!sp)
1493 return;
1494
1495 lio = &sp->u.iocb_cmd;
1496 type = sp->name;
1497 fcport = sp->fcport;
1498 data = lio->u.logio.data;
1499
1500 data[0] = MBS_COMMAND_ERROR;
1501 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1502 QLA_LOGIO_LOGIN_RETRIED : 0;
1503 if (logio->entry_status) {
1504 ql_log(ql_log_warn, fcport->vha, 0x5034,
1505 "Async-%s error entry - hdl=%x"
1506 "portid=%02x%02x%02x entry-status=%x.\n",
1507 type, sp->handle, fcport->d_id.b.domain,
1508 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1509 logio->entry_status);
1510 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1511 (uint8_t *)logio, sizeof(*logio));
1512
1513 goto logio_done;
1514 }
1515
1516 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1517 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1518 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1519 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1520 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1521 le32_to_cpu(logio->io_parameter[0]));
1522
1523 data[0] = MBS_COMMAND_COMPLETE;
1524 if (sp->type != SRB_LOGIN_CMD)
1525 goto logio_done;
1526
1527 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1528 if (iop[0] & BIT_4) {
1529 fcport->port_type = FCT_TARGET;
1530 if (iop[0] & BIT_8)
1531 fcport->flags |= FCF_FCP2_DEVICE;
1532 } else if (iop[0] & BIT_5)
1533 fcport->port_type = FCT_INITIATOR;
1534
1535 if (iop[0] & BIT_7)
1536 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1537
1538 if (logio->io_parameter[7] || logio->io_parameter[8])
1539 fcport->supported_classes |= FC_COS_CLASS2;
1540 if (logio->io_parameter[9] || logio->io_parameter[10])
1541 fcport->supported_classes |= FC_COS_CLASS3;
1542
1543 goto logio_done;
1544 }
1545
1546 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1547 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1548 switch (iop[0]) {
1549 case LSC_SCODE_PORTID_USED:
1550 data[0] = MBS_PORT_ID_USED;
1551 data[1] = LSW(iop[1]);
1552 break;
1553 case LSC_SCODE_NPORT_USED:
1554 data[0] = MBS_LOOP_ID_USED;
1555 break;
1556 default:
1557 data[0] = MBS_COMMAND_ERROR;
1558 break;
1559 }
1560
1561 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1562 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1563 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1564 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1565 le16_to_cpu(logio->comp_status),
1566 le32_to_cpu(logio->io_parameter[0]),
1567 le32_to_cpu(logio->io_parameter[1]));
1568
1569 logio_done:
1570 sp->done(vha, sp, 0);
1571 }
1572
1573 static void
1574 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1575 {
1576 const char func[] = "TMF-IOCB";
1577 const char *type;
1578 fc_port_t *fcport;
1579 srb_t *sp;
1580 struct srb_iocb *iocb;
1581 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1582
1583 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1584 if (!sp)
1585 return;
1586
1587 iocb = &sp->u.iocb_cmd;
1588 type = sp->name;
1589 fcport = sp->fcport;
1590 iocb->u.tmf.data = QLA_SUCCESS;
1591
1592 if (sts->entry_status) {
1593 ql_log(ql_log_warn, fcport->vha, 0x5038,
1594 "Async-%s error - hdl=%x entry-status(%x).\n",
1595 type, sp->handle, sts->entry_status);
1596 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1597 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1598 ql_log(ql_log_warn, fcport->vha, 0x5039,
1599 "Async-%s error - hdl=%x completion status(%x).\n",
1600 type, sp->handle, sts->comp_status);
1601 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1602 } else if ((le16_to_cpu(sts->scsi_status) &
1603 SS_RESPONSE_INFO_LEN_VALID)) {
1604 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1605 ql_log(ql_log_warn, fcport->vha, 0x503b,
1606 "Async-%s error - hdl=%x not enough response(%d).\n",
1607 type, sp->handle, sts->rsp_data_len);
1608 } else if (sts->data[3]) {
1609 ql_log(ql_log_warn, fcport->vha, 0x503c,
1610 "Async-%s error - hdl=%x response(%x).\n",
1611 type, sp->handle, sts->data[3]);
1612 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1613 }
1614 }
1615
1616 if (iocb->u.tmf.data != QLA_SUCCESS)
1617 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1618 (uint8_t *)sts, sizeof(*sts));
1619
1620 sp->done(vha, sp, 0);
1621 }
1622
1623 /**
1624 * qla2x00_process_response_queue() - Process response queue entries.
1625 * @ha: SCSI driver HA context
1626 */
1627 void
1628 qla2x00_process_response_queue(struct rsp_que *rsp)
1629 {
1630 struct scsi_qla_host *vha;
1631 struct qla_hw_data *ha = rsp->hw;
1632 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1633 sts_entry_t *pkt;
1634 uint16_t handle_cnt;
1635 uint16_t cnt;
1636
1637 vha = pci_get_drvdata(ha->pdev);
1638
1639 if (!vha->flags.online)
1640 return;
1641
1642 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1643 pkt = (sts_entry_t *)rsp->ring_ptr;
1644
1645 rsp->ring_index++;
1646 if (rsp->ring_index == rsp->length) {
1647 rsp->ring_index = 0;
1648 rsp->ring_ptr = rsp->ring;
1649 } else {
1650 rsp->ring_ptr++;
1651 }
1652
1653 if (pkt->entry_status != 0) {
1654 qla2x00_error_entry(vha, rsp, pkt);
1655 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1656 wmb();
1657 continue;
1658 }
1659
1660 switch (pkt->entry_type) {
1661 case STATUS_TYPE:
1662 qla2x00_status_entry(vha, rsp, pkt);
1663 break;
1664 case STATUS_TYPE_21:
1665 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1666 for (cnt = 0; cnt < handle_cnt; cnt++) {
1667 qla2x00_process_completed_request(vha, rsp->req,
1668 ((sts21_entry_t *)pkt)->handle[cnt]);
1669 }
1670 break;
1671 case STATUS_TYPE_22:
1672 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1673 for (cnt = 0; cnt < handle_cnt; cnt++) {
1674 qla2x00_process_completed_request(vha, rsp->req,
1675 ((sts22_entry_t *)pkt)->handle[cnt]);
1676 }
1677 break;
1678 case STATUS_CONT_TYPE:
1679 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1680 break;
1681 case MBX_IOCB_TYPE:
1682 qla2x00_mbx_iocb_entry(vha, rsp->req,
1683 (struct mbx_entry *)pkt);
1684 break;
1685 case CT_IOCB_TYPE:
1686 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1687 break;
1688 default:
1689 /* Type Not Supported. */
1690 ql_log(ql_log_warn, vha, 0x504a,
1691 "Received unknown response pkt type %x "
1692 "entry status=%x.\n",
1693 pkt->entry_type, pkt->entry_status);
1694 break;
1695 }
1696 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1697 wmb();
1698 }
1699
1700 /* Adjust ring index */
1701 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1702 }
1703
1704 static inline void
1705 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1706 uint32_t sense_len, struct rsp_que *rsp, int res)
1707 {
1708 struct scsi_qla_host *vha = sp->fcport->vha;
1709 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1710 uint32_t track_sense_len;
1711
1712 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1713 sense_len = SCSI_SENSE_BUFFERSIZE;
1714
1715 SET_CMD_SENSE_LEN(sp, sense_len);
1716 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1717 track_sense_len = sense_len;
1718
1719 if (sense_len > par_sense_len)
1720 sense_len = par_sense_len;
1721
1722 memcpy(cp->sense_buffer, sense_data, sense_len);
1723
1724 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1725 track_sense_len -= sense_len;
1726 SET_CMD_SENSE_LEN(sp, track_sense_len);
1727
1728 if (track_sense_len != 0) {
1729 rsp->status_srb = sp;
1730 cp->result = res;
1731 }
1732
1733 if (sense_len) {
1734 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1735 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1736 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1737 cp);
1738 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1739 cp->sense_buffer, sense_len);
1740 }
1741 }
1742
1743 struct scsi_dif_tuple {
1744 __be16 guard; /* Checksum */
1745 __be16 app_tag; /* APPL identifier */
1746 __be32 ref_tag; /* Target LBA or indirect LBA */
1747 };
1748
1749 /*
1750 * Checks the guard or meta-data for the type of error
1751 * detected by the HBA. In case of errors, we set the
1752 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1753 * to indicate to the kernel that the HBA detected error.
1754 */
1755 static inline int
1756 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1757 {
1758 struct scsi_qla_host *vha = sp->fcport->vha;
1759 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1760 uint8_t *ap = &sts24->data[12];
1761 uint8_t *ep = &sts24->data[20];
1762 uint32_t e_ref_tag, a_ref_tag;
1763 uint16_t e_app_tag, a_app_tag;
1764 uint16_t e_guard, a_guard;
1765
1766 /*
1767 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1768 * would make guard field appear at offset 2
1769 */
1770 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1771 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1772 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1773 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1774 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1775 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1776
1777 ql_dbg(ql_dbg_io, vha, 0x3023,
1778 "iocb(s) %p Returned STATUS.\n", sts24);
1779
1780 ql_dbg(ql_dbg_io, vha, 0x3024,
1781 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1782 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1783 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1784 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1785 a_app_tag, e_app_tag, a_guard, e_guard);
1786
1787 /*
1788 * Ignore sector if:
1789 * For type 3: ref & app tag is all 'f's
1790 * For type 0,1,2: app tag is all 'f's
1791 */
1792 if ((a_app_tag == 0xffff) &&
1793 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1794 (a_ref_tag == 0xffffffff))) {
1795 uint32_t blocks_done, resid;
1796 sector_t lba_s = scsi_get_lba(cmd);
1797
1798 /* 2TB boundary case covered automatically with this */
1799 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1800
1801 resid = scsi_bufflen(cmd) - (blocks_done *
1802 cmd->device->sector_size);
1803
1804 scsi_set_resid(cmd, resid);
1805 cmd->result = DID_OK << 16;
1806
1807 /* Update protection tag */
1808 if (scsi_prot_sg_count(cmd)) {
1809 uint32_t i, j = 0, k = 0, num_ent;
1810 struct scatterlist *sg;
1811 struct sd_dif_tuple *spt;
1812
1813 /* Patch the corresponding protection tags */
1814 scsi_for_each_prot_sg(cmd, sg,
1815 scsi_prot_sg_count(cmd), i) {
1816 num_ent = sg_dma_len(sg) / 8;
1817 if (k + num_ent < blocks_done) {
1818 k += num_ent;
1819 continue;
1820 }
1821 j = blocks_done - k - 1;
1822 k = blocks_done;
1823 break;
1824 }
1825
1826 if (k != blocks_done) {
1827 ql_log(ql_log_warn, vha, 0x302f,
1828 "unexpected tag values tag:lba=%x:%llx)\n",
1829 e_ref_tag, (unsigned long long)lba_s);
1830 return 1;
1831 }
1832
1833 spt = page_address(sg_page(sg)) + sg->offset;
1834 spt += j;
1835
1836 spt->app_tag = 0xffff;
1837 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1838 spt->ref_tag = 0xffffffff;
1839 }
1840
1841 return 0;
1842 }
1843
1844 /* check guard */
1845 if (e_guard != a_guard) {
1846 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1847 0x10, 0x1);
1848 set_driver_byte(cmd, DRIVER_SENSE);
1849 set_host_byte(cmd, DID_ABORT);
1850 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1851 return 1;
1852 }
1853
1854 /* check ref tag */
1855 if (e_ref_tag != a_ref_tag) {
1856 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1857 0x10, 0x3);
1858 set_driver_byte(cmd, DRIVER_SENSE);
1859 set_host_byte(cmd, DID_ABORT);
1860 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1861 return 1;
1862 }
1863
1864 /* check appl tag */
1865 if (e_app_tag != a_app_tag) {
1866 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1867 0x10, 0x2);
1868 set_driver_byte(cmd, DRIVER_SENSE);
1869 set_host_byte(cmd, DID_ABORT);
1870 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1871 return 1;
1872 }
1873
1874 return 1;
1875 }
1876
1877 static void
1878 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1879 struct req_que *req, uint32_t index)
1880 {
1881 struct qla_hw_data *ha = vha->hw;
1882 srb_t *sp;
1883 uint16_t comp_status;
1884 uint16_t scsi_status;
1885 uint16_t thread_id;
1886 uint32_t rval = EXT_STATUS_OK;
1887 struct fc_bsg_job *bsg_job = NULL;
1888 sts_entry_t *sts;
1889 struct sts_entry_24xx *sts24;
1890 sts = (sts_entry_t *) pkt;
1891 sts24 = (struct sts_entry_24xx *) pkt;
1892
1893 /* Validate handle. */
1894 if (index >= req->num_outstanding_cmds) {
1895 ql_log(ql_log_warn, vha, 0x70af,
1896 "Invalid SCSI completion handle 0x%x.\n", index);
1897 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1898 return;
1899 }
1900
1901 sp = req->outstanding_cmds[index];
1902 if (sp) {
1903 /* Free outstanding command slot. */
1904 req->outstanding_cmds[index] = NULL;
1905 bsg_job = sp->u.bsg_job;
1906 } else {
1907 ql_log(ql_log_warn, vha, 0x70b0,
1908 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1909 req->id, index);
1910
1911 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1912 return;
1913 }
1914
1915 if (IS_FWI2_CAPABLE(ha)) {
1916 comp_status = le16_to_cpu(sts24->comp_status);
1917 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1918 } else {
1919 comp_status = le16_to_cpu(sts->comp_status);
1920 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1921 }
1922
1923 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1924 switch (comp_status) {
1925 case CS_COMPLETE:
1926 if (scsi_status == 0) {
1927 bsg_job->reply->reply_payload_rcv_len =
1928 bsg_job->reply_payload.payload_len;
1929 vha->qla_stats.input_bytes +=
1930 bsg_job->reply->reply_payload_rcv_len;
1931 vha->qla_stats.input_requests++;
1932 rval = EXT_STATUS_OK;
1933 }
1934 goto done;
1935
1936 case CS_DATA_OVERRUN:
1937 ql_dbg(ql_dbg_user, vha, 0x70b1,
1938 "Command completed with date overrun thread_id=%d\n",
1939 thread_id);
1940 rval = EXT_STATUS_DATA_OVERRUN;
1941 break;
1942
1943 case CS_DATA_UNDERRUN:
1944 ql_dbg(ql_dbg_user, vha, 0x70b2,
1945 "Command completed with date underrun thread_id=%d\n",
1946 thread_id);
1947 rval = EXT_STATUS_DATA_UNDERRUN;
1948 break;
1949 case CS_BIDIR_RD_OVERRUN:
1950 ql_dbg(ql_dbg_user, vha, 0x70b3,
1951 "Command completed with read data overrun thread_id=%d\n",
1952 thread_id);
1953 rval = EXT_STATUS_DATA_OVERRUN;
1954 break;
1955
1956 case CS_BIDIR_RD_WR_OVERRUN:
1957 ql_dbg(ql_dbg_user, vha, 0x70b4,
1958 "Command completed with read and write data overrun "
1959 "thread_id=%d\n", thread_id);
1960 rval = EXT_STATUS_DATA_OVERRUN;
1961 break;
1962
1963 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1964 ql_dbg(ql_dbg_user, vha, 0x70b5,
1965 "Command completed with read data over and write data "
1966 "underrun thread_id=%d\n", thread_id);
1967 rval = EXT_STATUS_DATA_OVERRUN;
1968 break;
1969
1970 case CS_BIDIR_RD_UNDERRUN:
1971 ql_dbg(ql_dbg_user, vha, 0x70b6,
1972 "Command completed with read data data underrun "
1973 "thread_id=%d\n", thread_id);
1974 rval = EXT_STATUS_DATA_UNDERRUN;
1975 break;
1976
1977 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1978 ql_dbg(ql_dbg_user, vha, 0x70b7,
1979 "Command completed with read data under and write data "
1980 "overrun thread_id=%d\n", thread_id);
1981 rval = EXT_STATUS_DATA_UNDERRUN;
1982 break;
1983
1984 case CS_BIDIR_RD_WR_UNDERRUN:
1985 ql_dbg(ql_dbg_user, vha, 0x70b8,
1986 "Command completed with read and write data underrun "
1987 "thread_id=%d\n", thread_id);
1988 rval = EXT_STATUS_DATA_UNDERRUN;
1989 break;
1990
1991 case CS_BIDIR_DMA:
1992 ql_dbg(ql_dbg_user, vha, 0x70b9,
1993 "Command completed with data DMA error thread_id=%d\n",
1994 thread_id);
1995 rval = EXT_STATUS_DMA_ERR;
1996 break;
1997
1998 case CS_TIMEOUT:
1999 ql_dbg(ql_dbg_user, vha, 0x70ba,
2000 "Command completed with timeout thread_id=%d\n",
2001 thread_id);
2002 rval = EXT_STATUS_TIMEOUT;
2003 break;
2004 default:
2005 ql_dbg(ql_dbg_user, vha, 0x70bb,
2006 "Command completed with completion status=0x%x "
2007 "thread_id=%d\n", comp_status, thread_id);
2008 rval = EXT_STATUS_ERR;
2009 break;
2010 }
2011 bsg_job->reply->reply_payload_rcv_len = 0;
2012
2013 done:
2014 /* Return the vendor specific reply to API */
2015 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2016 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2017 /* Always return DID_OK, bsg will send the vendor specific response
2018 * in this case only */
2019 sp->done(vha, sp, (DID_OK << 6));
2020
2021 }
2022
2023 /**
2024 * qla2x00_status_entry() - Process a Status IOCB entry.
2025 * @ha: SCSI driver HA context
2026 * @pkt: Entry pointer
2027 */
2028 static void
2029 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2030 {
2031 srb_t *sp;
2032 fc_port_t *fcport;
2033 struct scsi_cmnd *cp;
2034 sts_entry_t *sts;
2035 struct sts_entry_24xx *sts24;
2036 uint16_t comp_status;
2037 uint16_t scsi_status;
2038 uint16_t ox_id;
2039 uint8_t lscsi_status;
2040 int32_t resid;
2041 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2042 fw_resid_len;
2043 uint8_t *rsp_info, *sense_data;
2044 struct qla_hw_data *ha = vha->hw;
2045 uint32_t handle;
2046 uint16_t que;
2047 struct req_que *req;
2048 int logit = 1;
2049 int res = 0;
2050 uint16_t state_flags = 0;
2051 uint16_t retry_delay = 0;
2052
2053 sts = (sts_entry_t *) pkt;
2054 sts24 = (struct sts_entry_24xx *) pkt;
2055 if (IS_FWI2_CAPABLE(ha)) {
2056 comp_status = le16_to_cpu(sts24->comp_status);
2057 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2058 state_flags = le16_to_cpu(sts24->state_flags);
2059 } else {
2060 comp_status = le16_to_cpu(sts->comp_status);
2061 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2062 }
2063 handle = (uint32_t) LSW(sts->handle);
2064 que = MSW(sts->handle);
2065 req = ha->req_q_map[que];
2066
2067 /* Check for invalid queue pointer */
2068 if (req == NULL ||
2069 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2070 ql_dbg(ql_dbg_io, vha, 0x3059,
2071 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2072 "que=%u.\n", sts->handle, req, que);
2073 return;
2074 }
2075
2076 /* Validate handle. */
2077 if (handle < req->num_outstanding_cmds) {
2078 sp = req->outstanding_cmds[handle];
2079 if (!sp) {
2080 ql_dbg(ql_dbg_io, vha, 0x3075,
2081 "%s(%ld): Already returned command for status handle (0x%x).\n",
2082 __func__, vha->host_no, sts->handle);
2083 return;
2084 }
2085 } else {
2086 ql_dbg(ql_dbg_io, vha, 0x3017,
2087 "Invalid status handle, out of range (0x%x).\n",
2088 sts->handle);
2089
2090 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2091 if (IS_P3P_TYPE(ha))
2092 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2093 else
2094 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2095 qla2xxx_wake_dpc(vha);
2096 }
2097 return;
2098 }
2099
2100 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2101 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2102 return;
2103 }
2104
2105 /* Task Management completion. */
2106 if (sp->type == SRB_TM_CMD) {
2107 qla24xx_tm_iocb_entry(vha, req, pkt);
2108 return;
2109 }
2110
2111 /* Fast path completion. */
2112 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2113 qla2x00_process_completed_request(vha, req, handle);
2114
2115 return;
2116 }
2117
2118 req->outstanding_cmds[handle] = NULL;
2119 cp = GET_CMD_SP(sp);
2120 if (cp == NULL) {
2121 ql_dbg(ql_dbg_io, vha, 0x3018,
2122 "Command already returned (0x%x/%p).\n",
2123 sts->handle, sp);
2124
2125 return;
2126 }
2127
2128 lscsi_status = scsi_status & STATUS_MASK;
2129
2130 fcport = sp->fcport;
2131
2132 ox_id = 0;
2133 sense_len = par_sense_len = rsp_info_len = resid_len =
2134 fw_resid_len = 0;
2135 if (IS_FWI2_CAPABLE(ha)) {
2136 if (scsi_status & SS_SENSE_LEN_VALID)
2137 sense_len = le32_to_cpu(sts24->sense_len);
2138 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2139 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2140 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2141 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2142 if (comp_status == CS_DATA_UNDERRUN)
2143 fw_resid_len = le32_to_cpu(sts24->residual_len);
2144 rsp_info = sts24->data;
2145 sense_data = sts24->data;
2146 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2147 ox_id = le16_to_cpu(sts24->ox_id);
2148 par_sense_len = sizeof(sts24->data);
2149 /* Valid values of the retry delay timer are 0x1-0xffef */
2150 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2151 retry_delay = sts24->retry_delay;
2152 } else {
2153 if (scsi_status & SS_SENSE_LEN_VALID)
2154 sense_len = le16_to_cpu(sts->req_sense_length);
2155 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2156 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2157 resid_len = le32_to_cpu(sts->residual_length);
2158 rsp_info = sts->rsp_info;
2159 sense_data = sts->req_sense_data;
2160 par_sense_len = sizeof(sts->req_sense_data);
2161 }
2162
2163 /* Check for any FCP transport errors. */
2164 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2165 /* Sense data lies beyond any FCP RESPONSE data. */
2166 if (IS_FWI2_CAPABLE(ha)) {
2167 sense_data += rsp_info_len;
2168 par_sense_len -= rsp_info_len;
2169 }
2170 if (rsp_info_len > 3 && rsp_info[3]) {
2171 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2172 "FCP I/O protocol failure (0x%x/0x%x).\n",
2173 rsp_info_len, rsp_info[3]);
2174
2175 res = DID_BUS_BUSY << 16;
2176 goto out;
2177 }
2178 }
2179
2180 /* Check for overrun. */
2181 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2182 scsi_status & SS_RESIDUAL_OVER)
2183 comp_status = CS_DATA_OVERRUN;
2184
2185 /*
2186 * Check retry_delay_timer value if we receive a busy or
2187 * queue full.
2188 */
2189 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2190 lscsi_status == SAM_STAT_BUSY)
2191 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2192
2193 /*
2194 * Based on Host and scsi status generate status code for Linux
2195 */
2196 switch (comp_status) {
2197 case CS_COMPLETE:
2198 case CS_QUEUE_FULL:
2199 if (scsi_status == 0) {
2200 res = DID_OK << 16;
2201 break;
2202 }
2203 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2204 resid = resid_len;
2205 scsi_set_resid(cp, resid);
2206
2207 if (!lscsi_status &&
2208 ((unsigned)(scsi_bufflen(cp) - resid) <
2209 cp->underflow)) {
2210 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2211 "Mid-layer underflow "
2212 "detected (0x%x of 0x%x bytes).\n",
2213 resid, scsi_bufflen(cp));
2214
2215 res = DID_ERROR << 16;
2216 break;
2217 }
2218 }
2219 res = DID_OK << 16 | lscsi_status;
2220
2221 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2222 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2223 "QUEUE FULL detected.\n");
2224 break;
2225 }
2226 logit = 0;
2227 if (lscsi_status != SS_CHECK_CONDITION)
2228 break;
2229
2230 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2231 if (!(scsi_status & SS_SENSE_LEN_VALID))
2232 break;
2233
2234 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2235 rsp, res);
2236 break;
2237
2238 case CS_DATA_UNDERRUN:
2239 /* Use F/W calculated residual length. */
2240 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2241 scsi_set_resid(cp, resid);
2242 if (scsi_status & SS_RESIDUAL_UNDER) {
2243 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2244 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2245 "Dropped frame(s) detected "
2246 "(0x%x of 0x%x bytes).\n",
2247 resid, scsi_bufflen(cp));
2248
2249 res = DID_ERROR << 16 | lscsi_status;
2250 goto check_scsi_status;
2251 }
2252
2253 if (!lscsi_status &&
2254 ((unsigned)(scsi_bufflen(cp) - resid) <
2255 cp->underflow)) {
2256 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2257 "Mid-layer underflow "
2258 "detected (0x%x of 0x%x bytes).\n",
2259 resid, scsi_bufflen(cp));
2260
2261 res = DID_ERROR << 16;
2262 break;
2263 }
2264 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2265 lscsi_status != SAM_STAT_BUSY) {
2266 /*
2267 * scsi status of task set and busy are considered to be
2268 * task not completed.
2269 */
2270
2271 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2272 "Dropped frame(s) detected (0x%x "
2273 "of 0x%x bytes).\n", resid,
2274 scsi_bufflen(cp));
2275
2276 res = DID_ERROR << 16 | lscsi_status;
2277 goto check_scsi_status;
2278 } else {
2279 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2280 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2281 scsi_status, lscsi_status);
2282 }
2283
2284 res = DID_OK << 16 | lscsi_status;
2285 logit = 0;
2286
2287 check_scsi_status:
2288 /*
2289 * Check to see if SCSI Status is non zero. If so report SCSI
2290 * Status.
2291 */
2292 if (lscsi_status != 0) {
2293 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2294 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2295 "QUEUE FULL detected.\n");
2296 logit = 1;
2297 break;
2298 }
2299 if (lscsi_status != SS_CHECK_CONDITION)
2300 break;
2301
2302 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2303 if (!(scsi_status & SS_SENSE_LEN_VALID))
2304 break;
2305
2306 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2307 sense_len, rsp, res);
2308 }
2309 break;
2310
2311 case CS_PORT_LOGGED_OUT:
2312 case CS_PORT_CONFIG_CHG:
2313 case CS_PORT_BUSY:
2314 case CS_INCOMPLETE:
2315 case CS_PORT_UNAVAILABLE:
2316 case CS_TIMEOUT:
2317 case CS_RESET:
2318
2319 /*
2320 * We are going to have the fc class block the rport
2321 * while we try to recover so instruct the mid layer
2322 * to requeue until the class decides how to handle this.
2323 */
2324 res = DID_TRANSPORT_DISRUPTED << 16;
2325
2326 if (comp_status == CS_TIMEOUT) {
2327 if (IS_FWI2_CAPABLE(ha))
2328 break;
2329 else if ((le16_to_cpu(sts->status_flags) &
2330 SF_LOGOUT_SENT) == 0)
2331 break;
2332 }
2333
2334 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2335 "Port to be marked lost on fcport=%02x%02x%02x, current "
2336 "port state= %s.\n", fcport->d_id.b.domain,
2337 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2338 port_state_str[atomic_read(&fcport->state)]);
2339
2340 if (atomic_read(&fcport->state) == FCS_ONLINE)
2341 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2342 break;
2343
2344 case CS_ABORTED:
2345 res = DID_RESET << 16;
2346 break;
2347
2348 case CS_DIF_ERROR:
2349 logit = qla2x00_handle_dif_error(sp, sts24);
2350 res = cp->result;
2351 break;
2352
2353 case CS_TRANSPORT:
2354 res = DID_ERROR << 16;
2355
2356 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2357 break;
2358
2359 if (state_flags & BIT_4)
2360 scmd_printk(KERN_WARNING, cp,
2361 "Unsupported device '%s' found.\n",
2362 cp->device->vendor);
2363 break;
2364
2365 default:
2366 res = DID_ERROR << 16;
2367 break;
2368 }
2369
2370 out:
2371 if (logit)
2372 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2373 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2374 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2375 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2376 comp_status, scsi_status, res, vha->host_no,
2377 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2378 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2379 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2380 resid_len, fw_resid_len, sp, cp);
2381
2382 if (rsp->status_srb == NULL)
2383 sp->done(ha, sp, res);
2384 }
2385
2386 /**
2387 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2388 * @ha: SCSI driver HA context
2389 * @pkt: Entry pointer
2390 *
2391 * Extended sense data.
2392 */
2393 static void
2394 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2395 {
2396 uint8_t sense_sz = 0;
2397 struct qla_hw_data *ha = rsp->hw;
2398 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2399 srb_t *sp = rsp->status_srb;
2400 struct scsi_cmnd *cp;
2401 uint32_t sense_len;
2402 uint8_t *sense_ptr;
2403
2404 if (!sp || !GET_CMD_SENSE_LEN(sp))
2405 return;
2406
2407 sense_len = GET_CMD_SENSE_LEN(sp);
2408 sense_ptr = GET_CMD_SENSE_PTR(sp);
2409
2410 cp = GET_CMD_SP(sp);
2411 if (cp == NULL) {
2412 ql_log(ql_log_warn, vha, 0x3025,
2413 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2414
2415 rsp->status_srb = NULL;
2416 return;
2417 }
2418
2419 if (sense_len > sizeof(pkt->data))
2420 sense_sz = sizeof(pkt->data);
2421 else
2422 sense_sz = sense_len;
2423
2424 /* Move sense data. */
2425 if (IS_FWI2_CAPABLE(ha))
2426 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2427 memcpy(sense_ptr, pkt->data, sense_sz);
2428 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2429 sense_ptr, sense_sz);
2430
2431 sense_len -= sense_sz;
2432 sense_ptr += sense_sz;
2433
2434 SET_CMD_SENSE_PTR(sp, sense_ptr);
2435 SET_CMD_SENSE_LEN(sp, sense_len);
2436
2437 /* Place command on done queue. */
2438 if (sense_len == 0) {
2439 rsp->status_srb = NULL;
2440 sp->done(ha, sp, cp->result);
2441 }
2442 }
2443
2444 /**
2445 * qla2x00_error_entry() - Process an error entry.
2446 * @ha: SCSI driver HA context
2447 * @pkt: Entry pointer
2448 */
2449 static void
2450 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2451 {
2452 srb_t *sp;
2453 struct qla_hw_data *ha = vha->hw;
2454 const char func[] = "ERROR-IOCB";
2455 uint16_t que = MSW(pkt->handle);
2456 struct req_que *req = NULL;
2457 int res = DID_ERROR << 16;
2458
2459 ql_dbg(ql_dbg_async, vha, 0x502a,
2460 "type of error status in response: 0x%x\n", pkt->entry_status);
2461
2462 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2463 goto fatal;
2464
2465 req = ha->req_q_map[que];
2466
2467 if (pkt->entry_status & RF_BUSY)
2468 res = DID_BUS_BUSY << 16;
2469
2470 if (pkt->entry_type == NOTIFY_ACK_TYPE &&
2471 pkt->handle == QLA_TGT_SKIP_HANDLE)
2472 return;
2473
2474 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2475 if (sp) {
2476 sp->done(ha, sp, res);
2477 return;
2478 }
2479 fatal:
2480 ql_log(ql_log_warn, vha, 0x5030,
2481 "Error entry - invalid handle/queue (%04x).\n", que);
2482 }
2483
2484 /**
2485 * qla24xx_mbx_completion() - Process mailbox command completions.
2486 * @ha: SCSI driver HA context
2487 * @mb0: Mailbox0 register
2488 */
2489 static void
2490 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2491 {
2492 uint16_t cnt;
2493 uint32_t mboxes;
2494 uint16_t __iomem *wptr;
2495 struct qla_hw_data *ha = vha->hw;
2496 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2497
2498 /* Read all mbox registers? */
2499 WARN_ON_ONCE(ha->mbx_count > 32);
2500 mboxes = (1ULL << ha->mbx_count) - 1;
2501 if (!ha->mcp)
2502 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2503 else
2504 mboxes = ha->mcp->in_mb;
2505
2506 /* Load return mailbox registers. */
2507 ha->flags.mbox_int = 1;
2508 ha->mailbox_out[0] = mb0;
2509 mboxes >>= 1;
2510 wptr = (uint16_t __iomem *)&reg->mailbox1;
2511
2512 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2513 if (mboxes & BIT_0)
2514 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2515
2516 mboxes >>= 1;
2517 wptr++;
2518 }
2519 }
2520
2521 static void
2522 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2523 struct abort_entry_24xx *pkt)
2524 {
2525 const char func[] = "ABT_IOCB";
2526 srb_t *sp;
2527 struct srb_iocb *abt;
2528
2529 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2530 if (!sp)
2531 return;
2532
2533 abt = &sp->u.iocb_cmd;
2534 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2535 sp->done(vha, sp, 0);
2536 }
2537
2538 /**
2539 * qla24xx_process_response_queue() - Process response queue entries.
2540 * @ha: SCSI driver HA context
2541 */
2542 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2543 struct rsp_que *rsp)
2544 {
2545 struct sts_entry_24xx *pkt;
2546 struct qla_hw_data *ha = vha->hw;
2547
2548 if (!vha->flags.online)
2549 return;
2550
2551 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2552 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2553
2554 rsp->ring_index++;
2555 if (rsp->ring_index == rsp->length) {
2556 rsp->ring_index = 0;
2557 rsp->ring_ptr = rsp->ring;
2558 } else {
2559 rsp->ring_ptr++;
2560 }
2561
2562 if (pkt->entry_status != 0) {
2563 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2564
2565 if (qlt_24xx_process_response_error(vha, pkt))
2566 goto process_err;
2567
2568 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2569 wmb();
2570 continue;
2571 }
2572 process_err:
2573
2574 switch (pkt->entry_type) {
2575 case STATUS_TYPE:
2576 qla2x00_status_entry(vha, rsp, pkt);
2577 break;
2578 case STATUS_CONT_TYPE:
2579 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2580 break;
2581 case VP_RPT_ID_IOCB_TYPE:
2582 qla24xx_report_id_acquisition(vha,
2583 (struct vp_rpt_id_entry_24xx *)pkt);
2584 break;
2585 case LOGINOUT_PORT_IOCB_TYPE:
2586 qla24xx_logio_entry(vha, rsp->req,
2587 (struct logio_entry_24xx *)pkt);
2588 break;
2589 case CT_IOCB_TYPE:
2590 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2591 break;
2592 case ELS_IOCB_TYPE:
2593 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2594 break;
2595 case ABTS_RECV_24XX:
2596 /* ensure that the ATIO queue is empty */
2597 qlt_24xx_process_atio_queue(vha);
2598 case ABTS_RESP_24XX:
2599 case CTIO_TYPE7:
2600 case NOTIFY_ACK_TYPE:
2601 case CTIO_CRC2:
2602 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2603 break;
2604 case MARKER_TYPE:
2605 /* Do nothing in this case, this check is to prevent it
2606 * from falling into default case
2607 */
2608 break;
2609 case ABORT_IOCB_TYPE:
2610 qla24xx_abort_iocb_entry(vha, rsp->req,
2611 (struct abort_entry_24xx *)pkt);
2612 break;
2613 default:
2614 /* Type Not Supported. */
2615 ql_dbg(ql_dbg_async, vha, 0x5042,
2616 "Received unknown response pkt type %x "
2617 "entry status=%x.\n",
2618 pkt->entry_type, pkt->entry_status);
2619 break;
2620 }
2621 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2622 wmb();
2623 }
2624
2625 /* Adjust ring index */
2626 if (IS_P3P_TYPE(ha)) {
2627 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2628 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2629 } else
2630 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2631 }
2632
2633 static void
2634 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2635 {
2636 int rval;
2637 uint32_t cnt;
2638 struct qla_hw_data *ha = vha->hw;
2639 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2640
2641 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2642 !IS_QLA27XX(ha))
2643 return;
2644
2645 rval = QLA_SUCCESS;
2646 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2647 RD_REG_DWORD(&reg->iobase_addr);
2648 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2649 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2650 rval == QLA_SUCCESS; cnt--) {
2651 if (cnt) {
2652 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2653 udelay(10);
2654 } else
2655 rval = QLA_FUNCTION_TIMEOUT;
2656 }
2657 if (rval == QLA_SUCCESS)
2658 goto next_test;
2659
2660 rval = QLA_SUCCESS;
2661 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2662 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2663 rval == QLA_SUCCESS; cnt--) {
2664 if (cnt) {
2665 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2666 udelay(10);
2667 } else
2668 rval = QLA_FUNCTION_TIMEOUT;
2669 }
2670 if (rval != QLA_SUCCESS)
2671 goto done;
2672
2673 next_test:
2674 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2675 ql_log(ql_log_info, vha, 0x504c,
2676 "Additional code -- 0x55AA.\n");
2677
2678 done:
2679 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2680 RD_REG_DWORD(&reg->iobase_window);
2681 }
2682
2683 /**
2684 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2685 * @irq:
2686 * @dev_id: SCSI driver HA context
2687 *
2688 * Called by system whenever the host adapter generates an interrupt.
2689 *
2690 * Returns handled flag.
2691 */
2692 irqreturn_t
2693 qla24xx_intr_handler(int irq, void *dev_id)
2694 {
2695 scsi_qla_host_t *vha;
2696 struct qla_hw_data *ha;
2697 struct device_reg_24xx __iomem *reg;
2698 int status;
2699 unsigned long iter;
2700 uint32_t stat;
2701 uint32_t hccr;
2702 uint16_t mb[8];
2703 struct rsp_que *rsp;
2704 unsigned long flags;
2705
2706 rsp = (struct rsp_que *) dev_id;
2707 if (!rsp) {
2708 ql_log(ql_log_info, NULL, 0x5059,
2709 "%s: NULL response queue pointer.\n", __func__);
2710 return IRQ_NONE;
2711 }
2712
2713 ha = rsp->hw;
2714 reg = &ha->iobase->isp24;
2715 status = 0;
2716
2717 if (unlikely(pci_channel_offline(ha->pdev)))
2718 return IRQ_HANDLED;
2719
2720 spin_lock_irqsave(&ha->hardware_lock, flags);
2721 vha = pci_get_drvdata(ha->pdev);
2722 for (iter = 50; iter--; ) {
2723 stat = RD_REG_DWORD(&reg->host_status);
2724 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2725 break;
2726 if (stat & HSRX_RISC_PAUSED) {
2727 if (unlikely(pci_channel_offline(ha->pdev)))
2728 break;
2729
2730 hccr = RD_REG_DWORD(&reg->hccr);
2731
2732 ql_log(ql_log_warn, vha, 0x504b,
2733 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2734 hccr);
2735
2736 qla2xxx_check_risc_status(vha);
2737
2738 ha->isp_ops->fw_dump(vha, 1);
2739 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2740 break;
2741 } else if ((stat & HSRX_RISC_INT) == 0)
2742 break;
2743
2744 switch (stat & 0xff) {
2745 case INTR_ROM_MB_SUCCESS:
2746 case INTR_ROM_MB_FAILED:
2747 case INTR_MB_SUCCESS:
2748 case INTR_MB_FAILED:
2749 qla24xx_mbx_completion(vha, MSW(stat));
2750 status |= MBX_INTERRUPT;
2751
2752 break;
2753 case INTR_ASYNC_EVENT:
2754 mb[0] = MSW(stat);
2755 mb[1] = RD_REG_WORD(&reg->mailbox1);
2756 mb[2] = RD_REG_WORD(&reg->mailbox2);
2757 mb[3] = RD_REG_WORD(&reg->mailbox3);
2758 qla2x00_async_event(vha, rsp, mb);
2759 break;
2760 case INTR_RSP_QUE_UPDATE:
2761 case INTR_RSP_QUE_UPDATE_83XX:
2762 qla24xx_process_response_queue(vha, rsp);
2763 break;
2764 case INTR_ATIO_QUE_UPDATE:
2765 qlt_24xx_process_atio_queue(vha);
2766 break;
2767 case INTR_ATIO_RSP_QUE_UPDATE:
2768 qlt_24xx_process_atio_queue(vha);
2769 qla24xx_process_response_queue(vha, rsp);
2770 break;
2771 default:
2772 ql_dbg(ql_dbg_async, vha, 0x504f,
2773 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2774 break;
2775 }
2776 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2777 RD_REG_DWORD_RELAXED(&reg->hccr);
2778 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2779 ndelay(3500);
2780 }
2781 qla2x00_handle_mbx_completion(ha, status);
2782 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2783
2784 return IRQ_HANDLED;
2785 }
2786
2787 static irqreturn_t
2788 qla24xx_msix_rsp_q(int irq, void *dev_id)
2789 {
2790 struct qla_hw_data *ha;
2791 struct rsp_que *rsp;
2792 struct device_reg_24xx __iomem *reg;
2793 struct scsi_qla_host *vha;
2794 unsigned long flags;
2795 uint32_t stat = 0;
2796
2797 rsp = (struct rsp_que *) dev_id;
2798 if (!rsp) {
2799 ql_log(ql_log_info, NULL, 0x505a,
2800 "%s: NULL response queue pointer.\n", __func__);
2801 return IRQ_NONE;
2802 }
2803 ha = rsp->hw;
2804 reg = &ha->iobase->isp24;
2805
2806 spin_lock_irqsave(&ha->hardware_lock, flags);
2807
2808 vha = pci_get_drvdata(ha->pdev);
2809 /*
2810 * Use host_status register to check to PCI disconnection before we
2811 * we process the response queue.
2812 */
2813 stat = RD_REG_DWORD(&reg->host_status);
2814 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2815 goto out;
2816 qla24xx_process_response_queue(vha, rsp);
2817 if (!ha->flags.disable_msix_handshake) {
2818 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2819 RD_REG_DWORD_RELAXED(&reg->hccr);
2820 }
2821 out:
2822 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2823
2824 return IRQ_HANDLED;
2825 }
2826
2827 static irqreturn_t
2828 qla25xx_msix_rsp_q(int irq, void *dev_id)
2829 {
2830 struct qla_hw_data *ha;
2831 scsi_qla_host_t *vha;
2832 struct rsp_que *rsp;
2833 struct device_reg_24xx __iomem *reg;
2834 unsigned long flags;
2835 uint32_t hccr = 0;
2836
2837 rsp = (struct rsp_que *) dev_id;
2838 if (!rsp) {
2839 ql_log(ql_log_info, NULL, 0x505b,
2840 "%s: NULL response queue pointer.\n", __func__);
2841 return IRQ_NONE;
2842 }
2843 ha = rsp->hw;
2844 vha = pci_get_drvdata(ha->pdev);
2845
2846 /* Clear the interrupt, if enabled, for this response queue */
2847 if (!ha->flags.disable_msix_handshake) {
2848 reg = &ha->iobase->isp24;
2849 spin_lock_irqsave(&ha->hardware_lock, flags);
2850 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2851 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2852 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2853 }
2854 if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2855 goto out;
2856 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2857
2858 out:
2859 return IRQ_HANDLED;
2860 }
2861
2862 static irqreturn_t
2863 qla24xx_msix_default(int irq, void *dev_id)
2864 {
2865 scsi_qla_host_t *vha;
2866 struct qla_hw_data *ha;
2867 struct rsp_que *rsp;
2868 struct device_reg_24xx __iomem *reg;
2869 int status;
2870 uint32_t stat;
2871 uint32_t hccr;
2872 uint16_t mb[8];
2873 unsigned long flags;
2874
2875 rsp = (struct rsp_que *) dev_id;
2876 if (!rsp) {
2877 ql_log(ql_log_info, NULL, 0x505c,
2878 "%s: NULL response queue pointer.\n", __func__);
2879 return IRQ_NONE;
2880 }
2881 ha = rsp->hw;
2882 reg = &ha->iobase->isp24;
2883 status = 0;
2884
2885 spin_lock_irqsave(&ha->hardware_lock, flags);
2886 vha = pci_get_drvdata(ha->pdev);
2887 do {
2888 stat = RD_REG_DWORD(&reg->host_status);
2889 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2890 break;
2891 if (stat & HSRX_RISC_PAUSED) {
2892 if (unlikely(pci_channel_offline(ha->pdev)))
2893 break;
2894
2895 hccr = RD_REG_DWORD(&reg->hccr);
2896
2897 ql_log(ql_log_info, vha, 0x5050,
2898 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2899 hccr);
2900
2901 qla2xxx_check_risc_status(vha);
2902
2903 ha->isp_ops->fw_dump(vha, 1);
2904 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2905 break;
2906 } else if ((stat & HSRX_RISC_INT) == 0)
2907 break;
2908
2909 switch (stat & 0xff) {
2910 case INTR_ROM_MB_SUCCESS:
2911 case INTR_ROM_MB_FAILED:
2912 case INTR_MB_SUCCESS:
2913 case INTR_MB_FAILED:
2914 qla24xx_mbx_completion(vha, MSW(stat));
2915 status |= MBX_INTERRUPT;
2916
2917 break;
2918 case INTR_ASYNC_EVENT:
2919 mb[0] = MSW(stat);
2920 mb[1] = RD_REG_WORD(&reg->mailbox1);
2921 mb[2] = RD_REG_WORD(&reg->mailbox2);
2922 mb[3] = RD_REG_WORD(&reg->mailbox3);
2923 qla2x00_async_event(vha, rsp, mb);
2924 break;
2925 case INTR_RSP_QUE_UPDATE:
2926 case INTR_RSP_QUE_UPDATE_83XX:
2927 qla24xx_process_response_queue(vha, rsp);
2928 break;
2929 case INTR_ATIO_QUE_UPDATE:
2930 qlt_24xx_process_atio_queue(vha);
2931 break;
2932 case INTR_ATIO_RSP_QUE_UPDATE:
2933 qlt_24xx_process_atio_queue(vha);
2934 qla24xx_process_response_queue(vha, rsp);
2935 break;
2936 default:
2937 ql_dbg(ql_dbg_async, vha, 0x5051,
2938 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2939 break;
2940 }
2941 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2942 } while (0);
2943 qla2x00_handle_mbx_completion(ha, status);
2944 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2945
2946 return IRQ_HANDLED;
2947 }
2948
2949 /* Interrupt handling helpers. */
2950
2951 struct qla_init_msix_entry {
2952 const char *name;
2953 irq_handler_t handler;
2954 };
2955
2956 static struct qla_init_msix_entry msix_entries[3] = {
2957 { "qla2xxx (default)", qla24xx_msix_default },
2958 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2959 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2960 };
2961
2962 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2963 { "qla2xxx (default)", qla82xx_msix_default },
2964 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
2965 };
2966
2967 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
2968 { "qla2xxx (default)", qla24xx_msix_default },
2969 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2970 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
2971 };
2972
2973 static void
2974 qla24xx_disable_msix(struct qla_hw_data *ha)
2975 {
2976 int i;
2977 struct qla_msix_entry *qentry;
2978 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
2979
2980 for (i = 0; i < ha->msix_count; i++) {
2981 qentry = &ha->msix_entries[i];
2982 if (qentry->have_irq)
2983 free_irq(qentry->vector, qentry->rsp);
2984 }
2985 pci_disable_msix(ha->pdev);
2986 kfree(ha->msix_entries);
2987 ha->msix_entries = NULL;
2988 ha->flags.msix_enabled = 0;
2989 ql_dbg(ql_dbg_init, vha, 0x0042,
2990 "Disabled the MSI.\n");
2991 }
2992
2993 static int
2994 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
2995 {
2996 #define MIN_MSIX_COUNT 2
2997 #define ATIO_VECTOR 2
2998 int i, ret;
2999 struct msix_entry *entries;
3000 struct qla_msix_entry *qentry;
3001 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3002
3003 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3004 GFP_KERNEL);
3005 if (!entries) {
3006 ql_log(ql_log_warn, vha, 0x00bc,
3007 "Failed to allocate memory for msix_entry.\n");
3008 return -ENOMEM;
3009 }
3010
3011 for (i = 0; i < ha->msix_count; i++)
3012 entries[i].entry = i;
3013
3014 ret = pci_enable_msix_range(ha->pdev,
3015 entries, MIN_MSIX_COUNT, ha->msix_count);
3016 if (ret < 0) {
3017 ql_log(ql_log_fatal, vha, 0x00c7,
3018 "MSI-X: Failed to enable support, "
3019 "giving up -- %d/%d.\n",
3020 ha->msix_count, ret);
3021 goto msix_out;
3022 } else if (ret < ha->msix_count) {
3023 ql_log(ql_log_warn, vha, 0x00c6,
3024 "MSI-X: Failed to enable support "
3025 "-- %d/%d\n Retry with %d vectors.\n",
3026 ha->msix_count, ret, ret);
3027 ha->msix_count = ret;
3028 ha->max_rsp_queues = ha->msix_count - 1;
3029 }
3030 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3031 ha->msix_count, GFP_KERNEL);
3032 if (!ha->msix_entries) {
3033 ql_log(ql_log_fatal, vha, 0x00c8,
3034 "Failed to allocate memory for ha->msix_entries.\n");
3035 ret = -ENOMEM;
3036 goto msix_out;
3037 }
3038 ha->flags.msix_enabled = 1;
3039
3040 for (i = 0; i < ha->msix_count; i++) {
3041 qentry = &ha->msix_entries[i];
3042 qentry->vector = entries[i].vector;
3043 qentry->entry = entries[i].entry;
3044 qentry->have_irq = 0;
3045 qentry->rsp = NULL;
3046 }
3047
3048 /* Enable MSI-X vectors for the base queue */
3049 for (i = 0; i < 2; i++) {
3050 qentry = &ha->msix_entries[i];
3051 if (IS_P3P_TYPE(ha))
3052 ret = request_irq(qentry->vector,
3053 qla82xx_msix_entries[i].handler,
3054 0, qla82xx_msix_entries[i].name, rsp);
3055 else
3056 ret = request_irq(qentry->vector,
3057 msix_entries[i].handler,
3058 0, msix_entries[i].name, rsp);
3059 if (ret)
3060 goto msix_register_fail;
3061 qentry->have_irq = 1;
3062 qentry->rsp = rsp;
3063 rsp->msix = qentry;
3064 }
3065
3066 /*
3067 * If target mode is enable, also request the vector for the ATIO
3068 * queue.
3069 */
3070 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3071 qentry = &ha->msix_entries[ATIO_VECTOR];
3072 ret = request_irq(qentry->vector,
3073 qla83xx_msix_entries[ATIO_VECTOR].handler,
3074 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3075 qentry->have_irq = 1;
3076 qentry->rsp = rsp;
3077 rsp->msix = qentry;
3078 }
3079
3080 msix_register_fail:
3081 if (ret) {
3082 ql_log(ql_log_fatal, vha, 0x00cb,
3083 "MSI-X: unable to register handler -- %x/%d.\n",
3084 qentry->vector, ret);
3085 qla24xx_disable_msix(ha);
3086 ha->mqenable = 0;
3087 goto msix_out;
3088 }
3089
3090 /* Enable MSI-X vector for response queue update for queue 0 */
3091 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3092 if (ha->msixbase && ha->mqiobase &&
3093 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3094 ha->mqenable = 1;
3095 } else
3096 if (ha->mqiobase
3097 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3098 ha->mqenable = 1;
3099 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3100 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3101 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3102 ql_dbg(ql_dbg_init, vha, 0x0055,
3103 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3104 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3105
3106 msix_out:
3107 kfree(entries);
3108 return ret;
3109 }
3110
3111 int
3112 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3113 {
3114 int ret = QLA_FUNCTION_FAILED;
3115 device_reg_t *reg = ha->iobase;
3116 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3117
3118 /* If possible, enable MSI-X. */
3119 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3120 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3121 !IS_QLA27XX(ha))
3122 goto skip_msi;
3123
3124 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3125 (ha->pdev->subsystem_device == 0x7040 ||
3126 ha->pdev->subsystem_device == 0x7041 ||
3127 ha->pdev->subsystem_device == 0x1705)) {
3128 ql_log(ql_log_warn, vha, 0x0034,
3129 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3130 ha->pdev->subsystem_vendor,
3131 ha->pdev->subsystem_device);
3132 goto skip_msi;
3133 }
3134
3135 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3136 ql_log(ql_log_warn, vha, 0x0035,
3137 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3138 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3139 goto skip_msix;
3140 }
3141
3142 ret = qla24xx_enable_msix(ha, rsp);
3143 if (!ret) {
3144 ql_dbg(ql_dbg_init, vha, 0x0036,
3145 "MSI-X: Enabled (0x%X, 0x%X).\n",
3146 ha->chip_revision, ha->fw_attributes);
3147 goto clear_risc_ints;
3148 }
3149
3150 skip_msix:
3151
3152 ql_log(ql_log_info, vha, 0x0037,
3153 "Falling back-to MSI mode -%d.\n", ret);
3154
3155 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3156 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3157 !IS_QLA27XX(ha))
3158 goto skip_msi;
3159
3160 ret = pci_enable_msi(ha->pdev);
3161 if (!ret) {
3162 ql_dbg(ql_dbg_init, vha, 0x0038,
3163 "MSI: Enabled.\n");
3164 ha->flags.msi_enabled = 1;
3165 } else
3166 ql_log(ql_log_warn, vha, 0x0039,
3167 "Falling back-to INTa mode -- %d.\n", ret);
3168 skip_msi:
3169
3170 /* Skip INTx on ISP82xx. */
3171 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3172 return QLA_FUNCTION_FAILED;
3173
3174 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3175 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3176 QLA2XXX_DRIVER_NAME, rsp);
3177 if (ret) {
3178 ql_log(ql_log_warn, vha, 0x003a,
3179 "Failed to reserve interrupt %d already in use.\n",
3180 ha->pdev->irq);
3181 goto fail;
3182 } else if (!ha->flags.msi_enabled) {
3183 ql_dbg(ql_dbg_init, vha, 0x0125,
3184 "INTa mode: Enabled.\n");
3185 ha->flags.mr_intr_valid = 1;
3186 }
3187
3188 clear_risc_ints:
3189 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3190 goto fail;
3191
3192 spin_lock_irq(&ha->hardware_lock);
3193 WRT_REG_WORD(&reg->isp.semaphore, 0);
3194 spin_unlock_irq(&ha->hardware_lock);
3195
3196 fail:
3197 return ret;
3198 }
3199
3200 void
3201 qla2x00_free_irqs(scsi_qla_host_t *vha)
3202 {
3203 struct qla_hw_data *ha = vha->hw;
3204 struct rsp_que *rsp;
3205
3206 /*
3207 * We need to check that ha->rsp_q_map is valid in case we are called
3208 * from a probe failure context.
3209 */
3210 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3211 return;
3212 rsp = ha->rsp_q_map[0];
3213
3214 if (ha->flags.msix_enabled)
3215 qla24xx_disable_msix(ha);
3216 else if (ha->flags.msi_enabled) {
3217 free_irq(ha->pdev->irq, rsp);
3218 pci_disable_msi(ha->pdev);
3219 } else
3220 free_irq(ha->pdev->irq, rsp);
3221 }
3222
3223
3224 int qla25xx_request_irq(struct rsp_que *rsp)
3225 {
3226 struct qla_hw_data *ha = rsp->hw;
3227 struct qla_init_msix_entry *intr = &msix_entries[2];
3228 struct qla_msix_entry *msix = rsp->msix;
3229 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3230 int ret;
3231
3232 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3233 if (ret) {
3234 ql_log(ql_log_fatal, vha, 0x00e6,
3235 "MSI-X: Unable to register handler -- %x/%d.\n",
3236 msix->vector, ret);
3237 return ret;
3238 }
3239 msix->have_irq = 1;
3240 msix->rsp = rsp;
3241 return ret;
3242 }
Linux with added FPC-III support