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[mirror_ubuntu-bionic-kernel.git] / drivers / scsi / qla2xxx / qla_isr.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include "qla_target.h"
9
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <linux/t10-pi.h>
13 #include <scsi/scsi_tcq.h>
14 #include <scsi/scsi_bsg_fc.h>
15 #include <scsi/scsi_eh.h>
16
17 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
21 sts_entry_t *);
22
23 /**
24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
25 * @irq:
26 * @dev_id: SCSI driver HA context
27 *
28 * Called by system whenever the host adapter generates an interrupt.
29 *
30 * Returns handled flag.
31 */
32 irqreturn_t
33 qla2100_intr_handler(int irq, void *dev_id)
34 {
35 scsi_qla_host_t *vha;
36 struct qla_hw_data *ha;
37 struct device_reg_2xxx __iomem *reg;
38 int status;
39 unsigned long iter;
40 uint16_t hccr;
41 uint16_t mb[4];
42 struct rsp_que *rsp;
43 unsigned long flags;
44
45 rsp = (struct rsp_que *) dev_id;
46 if (!rsp) {
47 ql_log(ql_log_info, NULL, 0x505d,
48 "%s: NULL response queue pointer.\n", __func__);
49 return (IRQ_NONE);
50 }
51
52 ha = rsp->hw;
53 reg = &ha->iobase->isp;
54 status = 0;
55
56 spin_lock_irqsave(&ha->hardware_lock, flags);
57 vha = pci_get_drvdata(ha->pdev);
58 for (iter = 50; iter--; ) {
59 hccr = RD_REG_WORD(&reg->hccr);
60 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
61 break;
62 if (hccr & HCCR_RISC_PAUSE) {
63 if (pci_channel_offline(ha->pdev))
64 break;
65
66 /*
67 * Issue a "HARD" reset in order for the RISC interrupt
68 * bit to be cleared. Schedule a big hammer to get
69 * out of the RISC PAUSED state.
70 */
71 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
72 RD_REG_WORD(&reg->hccr);
73
74 ha->isp_ops->fw_dump(vha, 1);
75 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
76 break;
77 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
78 break;
79
80 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
81 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
82 RD_REG_WORD(&reg->hccr);
83
84 /* Get mailbox data. */
85 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
86 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
87 qla2x00_mbx_completion(vha, mb[0]);
88 status |= MBX_INTERRUPT;
89 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
90 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
91 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
92 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
93 qla2x00_async_event(vha, rsp, mb);
94 } else {
95 /*EMPTY*/
96 ql_dbg(ql_dbg_async, vha, 0x5025,
97 "Unrecognized interrupt type (%d).\n",
98 mb[0]);
99 }
100 /* Release mailbox registers. */
101 WRT_REG_WORD(&reg->semaphore, 0);
102 RD_REG_WORD(&reg->semaphore);
103 } else {
104 qla2x00_process_response_queue(rsp);
105
106 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
107 RD_REG_WORD(&reg->hccr);
108 }
109 }
110 qla2x00_handle_mbx_completion(ha, status);
111 spin_unlock_irqrestore(&ha->hardware_lock, flags);
112
113 return (IRQ_HANDLED);
114 }
115
116 bool
117 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
118 {
119 /* Check for PCI disconnection */
120 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
121 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
122 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
123 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
124 /*
125 * Schedule this (only once) on the default system
126 * workqueue so that all the adapter workqueues and the
127 * DPC thread can be shutdown cleanly.
128 */
129 schedule_work(&vha->hw->board_disable);
130 }
131 return true;
132 } else
133 return false;
134 }
135
136 bool
137 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
138 {
139 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
140 }
141
142 /**
143 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
144 * @irq:
145 * @dev_id: SCSI driver HA context
146 *
147 * Called by system whenever the host adapter generates an interrupt.
148 *
149 * Returns handled flag.
150 */
151 irqreturn_t
152 qla2300_intr_handler(int irq, void *dev_id)
153 {
154 scsi_qla_host_t *vha;
155 struct device_reg_2xxx __iomem *reg;
156 int status;
157 unsigned long iter;
158 uint32_t stat;
159 uint16_t hccr;
160 uint16_t mb[4];
161 struct rsp_que *rsp;
162 struct qla_hw_data *ha;
163 unsigned long flags;
164
165 rsp = (struct rsp_que *) dev_id;
166 if (!rsp) {
167 ql_log(ql_log_info, NULL, 0x5058,
168 "%s: NULL response queue pointer.\n", __func__);
169 return (IRQ_NONE);
170 }
171
172 ha = rsp->hw;
173 reg = &ha->iobase->isp;
174 status = 0;
175
176 spin_lock_irqsave(&ha->hardware_lock, flags);
177 vha = pci_get_drvdata(ha->pdev);
178 for (iter = 50; iter--; ) {
179 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
180 if (qla2x00_check_reg32_for_disconnect(vha, stat))
181 break;
182 if (stat & HSR_RISC_PAUSED) {
183 if (unlikely(pci_channel_offline(ha->pdev)))
184 break;
185
186 hccr = RD_REG_WORD(&reg->hccr);
187
188 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
189 ql_log(ql_log_warn, vha, 0x5026,
190 "Parity error -- HCCR=%x, Dumping "
191 "firmware.\n", hccr);
192 else
193 ql_log(ql_log_warn, vha, 0x5027,
194 "RISC paused -- HCCR=%x, Dumping "
195 "firmware.\n", hccr);
196
197 /*
198 * Issue a "HARD" reset in order for the RISC
199 * interrupt bit to be cleared. Schedule a big
200 * hammer to get out of the RISC PAUSED state.
201 */
202 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
203 RD_REG_WORD(&reg->hccr);
204
205 ha->isp_ops->fw_dump(vha, 1);
206 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
207 break;
208 } else if ((stat & HSR_RISC_INT) == 0)
209 break;
210
211 switch (stat & 0xff) {
212 case 0x1:
213 case 0x2:
214 case 0x10:
215 case 0x11:
216 qla2x00_mbx_completion(vha, MSW(stat));
217 status |= MBX_INTERRUPT;
218
219 /* Release mailbox registers. */
220 WRT_REG_WORD(&reg->semaphore, 0);
221 break;
222 case 0x12:
223 mb[0] = MSW(stat);
224 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
225 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
226 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
227 qla2x00_async_event(vha, rsp, mb);
228 break;
229 case 0x13:
230 qla2x00_process_response_queue(rsp);
231 break;
232 case 0x15:
233 mb[0] = MBA_CMPLT_1_16BIT;
234 mb[1] = MSW(stat);
235 qla2x00_async_event(vha, rsp, mb);
236 break;
237 case 0x16:
238 mb[0] = MBA_SCSI_COMPLETION;
239 mb[1] = MSW(stat);
240 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
241 qla2x00_async_event(vha, rsp, mb);
242 break;
243 default:
244 ql_dbg(ql_dbg_async, vha, 0x5028,
245 "Unrecognized interrupt type (%d).\n", stat & 0xff);
246 break;
247 }
248 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
249 RD_REG_WORD_RELAXED(&reg->hccr);
250 }
251 qla2x00_handle_mbx_completion(ha, status);
252 spin_unlock_irqrestore(&ha->hardware_lock, flags);
253
254 return (IRQ_HANDLED);
255 }
256
257 /**
258 * qla2x00_mbx_completion() - Process mailbox command completions.
259 * @ha: SCSI driver HA context
260 * @mb0: Mailbox0 register
261 */
262 static void
263 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
264 {
265 uint16_t cnt;
266 uint32_t mboxes;
267 uint16_t __iomem *wptr;
268 struct qla_hw_data *ha = vha->hw;
269 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
270
271 /* Read all mbox registers? */
272 mboxes = (1 << 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 fc_port_t *
565 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
566 {
567 fc_port_t *f, *tf;
568
569 f = tf = NULL;
570 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
571 if (f->loop_id == loop_id)
572 return f;
573 return NULL;
574 }
575
576 fc_port_t *
577 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
578 {
579 fc_port_t *f, *tf;
580
581 f = tf = NULL;
582 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
583 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
584 if (incl_deleted)
585 return f;
586 else if (f->deleted == 0)
587 return f;
588 }
589 }
590 return NULL;
591 }
592
593 fc_port_t *
594 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
595 u8 incl_deleted)
596 {
597 fc_port_t *f, *tf;
598
599 f = tf = NULL;
600 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
601 if (f->d_id.b24 == id->b24) {
602 if (incl_deleted)
603 return f;
604 else if (f->deleted == 0)
605 return f;
606 }
607 }
608 return NULL;
609 }
610
611 /**
612 * qla2x00_async_event() - Process aynchronous events.
613 * @ha: SCSI driver HA context
614 * @mb: Mailbox registers (0 - 3)
615 */
616 void
617 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
618 {
619 uint16_t handle_cnt;
620 uint16_t cnt, mbx;
621 uint32_t handles[5];
622 struct qla_hw_data *ha = vha->hw;
623 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
624 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
625 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
626 uint32_t rscn_entry, host_pid;
627 unsigned long flags;
628 fc_port_t *fcport = NULL;
629
630 /* Setup to process RIO completion. */
631 handle_cnt = 0;
632 if (IS_CNA_CAPABLE(ha))
633 goto skip_rio;
634 switch (mb[0]) {
635 case MBA_SCSI_COMPLETION:
636 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
637 handle_cnt = 1;
638 break;
639 case MBA_CMPLT_1_16BIT:
640 handles[0] = mb[1];
641 handle_cnt = 1;
642 mb[0] = MBA_SCSI_COMPLETION;
643 break;
644 case MBA_CMPLT_2_16BIT:
645 handles[0] = mb[1];
646 handles[1] = mb[2];
647 handle_cnt = 2;
648 mb[0] = MBA_SCSI_COMPLETION;
649 break;
650 case MBA_CMPLT_3_16BIT:
651 handles[0] = mb[1];
652 handles[1] = mb[2];
653 handles[2] = mb[3];
654 handle_cnt = 3;
655 mb[0] = MBA_SCSI_COMPLETION;
656 break;
657 case MBA_CMPLT_4_16BIT:
658 handles[0] = mb[1];
659 handles[1] = mb[2];
660 handles[2] = mb[3];
661 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
662 handle_cnt = 4;
663 mb[0] = MBA_SCSI_COMPLETION;
664 break;
665 case MBA_CMPLT_5_16BIT:
666 handles[0] = mb[1];
667 handles[1] = mb[2];
668 handles[2] = mb[3];
669 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
670 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
671 handle_cnt = 5;
672 mb[0] = MBA_SCSI_COMPLETION;
673 break;
674 case MBA_CMPLT_2_32BIT:
675 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
676 handles[1] = le32_to_cpu(
677 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
678 RD_MAILBOX_REG(ha, reg, 6));
679 handle_cnt = 2;
680 mb[0] = MBA_SCSI_COMPLETION;
681 break;
682 default:
683 break;
684 }
685 skip_rio:
686 switch (mb[0]) {
687 case MBA_SCSI_COMPLETION: /* Fast Post */
688 if (!vha->flags.online)
689 break;
690
691 for (cnt = 0; cnt < handle_cnt; cnt++)
692 qla2x00_process_completed_request(vha, rsp->req,
693 handles[cnt]);
694 break;
695
696 case MBA_RESET: /* Reset */
697 ql_dbg(ql_dbg_async, vha, 0x5002,
698 "Asynchronous RESET.\n");
699
700 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
701 break;
702
703 case MBA_SYSTEM_ERR: /* System Error */
704 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
705 RD_REG_WORD(&reg24->mailbox7) : 0;
706 ql_log(ql_log_warn, vha, 0x5003,
707 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
708 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
709
710 ha->isp_ops->fw_dump(vha, 1);
711 ha->flags.fw_init_done = 0;
712 ha->flags.fw_started = 0;
713
714 if (IS_FWI2_CAPABLE(ha)) {
715 if (mb[1] == 0 && mb[2] == 0) {
716 ql_log(ql_log_fatal, vha, 0x5004,
717 "Unrecoverable Hardware Error: adapter "
718 "marked OFFLINE!\n");
719 vha->flags.online = 0;
720 vha->device_flags |= DFLG_DEV_FAILED;
721 } else {
722 /* Check to see if MPI timeout occurred */
723 if ((mbx & MBX_3) && (ha->port_no == 0))
724 set_bit(MPI_RESET_NEEDED,
725 &vha->dpc_flags);
726
727 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
728 }
729 } else if (mb[1] == 0) {
730 ql_log(ql_log_fatal, vha, 0x5005,
731 "Unrecoverable Hardware Error: adapter marked "
732 "OFFLINE!\n");
733 vha->flags.online = 0;
734 vha->device_flags |= DFLG_DEV_FAILED;
735 } else
736 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
737 break;
738
739 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
740 ql_log(ql_log_warn, vha, 0x5006,
741 "ISP Request Transfer Error (%x).\n", mb[1]);
742
743 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
744 break;
745
746 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
747 ql_log(ql_log_warn, vha, 0x5007,
748 "ISP Response Transfer Error (%x).\n", mb[1]);
749
750 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
751 break;
752
753 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
754 ql_dbg(ql_dbg_async, vha, 0x5008,
755 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
756 break;
757
758 case MBA_LOOP_INIT_ERR:
759 ql_log(ql_log_warn, vha, 0x5090,
760 "LOOP INIT ERROR (%x).\n", mb[1]);
761 ha->isp_ops->fw_dump(vha, 1);
762 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
763 break;
764
765 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
766 ha->flags.lip_ae = 1;
767 ha->flags.n2n_ae = 0;
768
769 ql_dbg(ql_dbg_async, vha, 0x5009,
770 "LIP occurred (%x).\n", mb[1]);
771
772 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
773 atomic_set(&vha->loop_state, LOOP_DOWN);
774 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
775 qla2x00_mark_all_devices_lost(vha, 1);
776 }
777
778 if (vha->vp_idx) {
779 atomic_set(&vha->vp_state, VP_FAILED);
780 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
781 }
782
783 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
784 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
785
786 vha->flags.management_server_logged_in = 0;
787 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
788 break;
789
790 case MBA_LOOP_UP: /* Loop Up Event */
791 if (IS_QLA2100(ha) || IS_QLA2200(ha))
792 ha->link_data_rate = PORT_SPEED_1GB;
793 else
794 ha->link_data_rate = mb[1];
795
796 ql_log(ql_log_info, vha, 0x500a,
797 "LOOP UP detected (%s Gbps).\n",
798 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
799
800 vha->flags.management_server_logged_in = 0;
801 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
802 break;
803
804 case MBA_LOOP_DOWN: /* Loop Down Event */
805 ha->flags.n2n_ae = 0;
806 ha->flags.lip_ae = 0;
807 ha->current_topology = 0;
808
809 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
810 ? RD_REG_WORD(&reg24->mailbox4) : 0;
811 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
812 : mbx;
813 ql_log(ql_log_info, vha, 0x500b,
814 "LOOP DOWN detected (%x %x %x %x).\n",
815 mb[1], mb[2], mb[3], mbx);
816
817 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
818 atomic_set(&vha->loop_state, LOOP_DOWN);
819 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
820 /*
821 * In case of loop down, restore WWPN from
822 * NVRAM in case of FA-WWPN capable ISP
823 * Restore for Physical Port only
824 */
825 if (!vha->vp_idx) {
826 if (ha->flags.fawwpn_enabled) {
827 void *wwpn = ha->init_cb->port_name;
828 memcpy(vha->port_name, wwpn, WWN_SIZE);
829 fc_host_port_name(vha->host) =
830 wwn_to_u64(vha->port_name);
831 ql_dbg(ql_dbg_init + ql_dbg_verbose,
832 vha, 0x0144, "LOOP DOWN detected,"
833 "restore WWPN %016llx\n",
834 wwn_to_u64(vha->port_name));
835 }
836
837 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
838 }
839
840 vha->device_flags |= DFLG_NO_CABLE;
841 qla2x00_mark_all_devices_lost(vha, 1);
842 }
843
844 if (vha->vp_idx) {
845 atomic_set(&vha->vp_state, VP_FAILED);
846 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
847 }
848
849 vha->flags.management_server_logged_in = 0;
850 ha->link_data_rate = PORT_SPEED_UNKNOWN;
851 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
852 break;
853
854 case MBA_LIP_RESET: /* LIP reset occurred */
855 ql_dbg(ql_dbg_async, vha, 0x500c,
856 "LIP reset occurred (%x).\n", mb[1]);
857
858 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
859 atomic_set(&vha->loop_state, LOOP_DOWN);
860 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
861 qla2x00_mark_all_devices_lost(vha, 1);
862 }
863
864 if (vha->vp_idx) {
865 atomic_set(&vha->vp_state, VP_FAILED);
866 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
867 }
868
869 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
870
871 ha->operating_mode = LOOP;
872 vha->flags.management_server_logged_in = 0;
873 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
874 break;
875
876 /* case MBA_DCBX_COMPLETE: */
877 case MBA_POINT_TO_POINT: /* Point-to-Point */
878 ha->flags.lip_ae = 0;
879 ha->flags.n2n_ae = 1;
880
881 if (IS_QLA2100(ha))
882 break;
883
884 if (IS_CNA_CAPABLE(ha)) {
885 ql_dbg(ql_dbg_async, vha, 0x500d,
886 "DCBX Completed -- %04x %04x %04x.\n",
887 mb[1], mb[2], mb[3]);
888 if (ha->notify_dcbx_comp && !vha->vp_idx)
889 complete(&ha->dcbx_comp);
890
891 } else
892 ql_dbg(ql_dbg_async, vha, 0x500e,
893 "Asynchronous P2P MODE received.\n");
894
895 /*
896 * Until there's a transition from loop down to loop up, treat
897 * this as loop down only.
898 */
899 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
900 atomic_set(&vha->loop_state, LOOP_DOWN);
901 if (!atomic_read(&vha->loop_down_timer))
902 atomic_set(&vha->loop_down_timer,
903 LOOP_DOWN_TIME);
904 qla2x00_mark_all_devices_lost(vha, 1);
905 }
906
907 if (vha->vp_idx) {
908 atomic_set(&vha->vp_state, VP_FAILED);
909 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
910 }
911
912 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
913 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
914
915 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
916 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
917
918 ha->flags.gpsc_supported = 1;
919 vha->flags.management_server_logged_in = 0;
920 break;
921
922 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
923 if (IS_QLA2100(ha))
924 break;
925
926 ql_dbg(ql_dbg_async, vha, 0x500f,
927 "Configuration change detected: value=%x.\n", mb[1]);
928
929 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
930 atomic_set(&vha->loop_state, LOOP_DOWN);
931 if (!atomic_read(&vha->loop_down_timer))
932 atomic_set(&vha->loop_down_timer,
933 LOOP_DOWN_TIME);
934 qla2x00_mark_all_devices_lost(vha, 1);
935 }
936
937 if (vha->vp_idx) {
938 atomic_set(&vha->vp_state, VP_FAILED);
939 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
940 }
941
942 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
943 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
944 break;
945
946 case MBA_PORT_UPDATE: /* Port database update */
947 /*
948 * Handle only global and vn-port update events
949 *
950 * Relevant inputs:
951 * mb[1] = N_Port handle of changed port
952 * OR 0xffff for global event
953 * mb[2] = New login state
954 * 7 = Port logged out
955 * mb[3] = LSB is vp_idx, 0xff = all vps
956 *
957 * Skip processing if:
958 * Event is global, vp_idx is NOT all vps,
959 * vp_idx does not match
960 * Event is not global, vp_idx does not match
961 */
962 if (IS_QLA2XXX_MIDTYPE(ha) &&
963 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
964 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
965 break;
966
967 if (mb[2] == 0x7) {
968 ql_dbg(ql_dbg_async, vha, 0x5010,
969 "Port %s %04x %04x %04x.\n",
970 mb[1] == 0xffff ? "unavailable" : "logout",
971 mb[1], mb[2], mb[3]);
972
973 if (mb[1] == 0xffff)
974 goto global_port_update;
975
976 /* Port logout */
977 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
978 if (!fcport)
979 break;
980 if (atomic_read(&fcport->state) != FCS_ONLINE)
981 break;
982 ql_dbg(ql_dbg_async, vha, 0x508a,
983 "Marking port lost loopid=%04x portid=%06x.\n",
984 fcport->loop_id, fcport->d_id.b24);
985 if (qla_ini_mode_enabled(vha)) {
986 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
987 fcport->logout_on_delete = 0;
988 qlt_schedule_sess_for_deletion_lock(fcport);
989 }
990 break;
991
992 global_port_update:
993 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
994 atomic_set(&vha->loop_state, LOOP_DOWN);
995 atomic_set(&vha->loop_down_timer,
996 LOOP_DOWN_TIME);
997 vha->device_flags |= DFLG_NO_CABLE;
998 qla2x00_mark_all_devices_lost(vha, 1);
999 }
1000
1001 if (vha->vp_idx) {
1002 atomic_set(&vha->vp_state, VP_FAILED);
1003 fc_vport_set_state(vha->fc_vport,
1004 FC_VPORT_FAILED);
1005 qla2x00_mark_all_devices_lost(vha, 1);
1006 }
1007
1008 vha->flags.management_server_logged_in = 0;
1009 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1010 break;
1011 }
1012
1013 /*
1014 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1015 * event etc. earlier indicating loop is down) then process
1016 * it. Otherwise ignore it and Wait for RSCN to come in.
1017 */
1018 atomic_set(&vha->loop_down_timer, 0);
1019 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1020 atomic_read(&vha->loop_state) != LOOP_DEAD) {
1021 ql_dbg(ql_dbg_async, vha, 0x5011,
1022 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1023 mb[1], mb[2], mb[3]);
1024
1025 qlt_async_event(mb[0], vha, mb);
1026 break;
1027 }
1028
1029 ql_dbg(ql_dbg_async, vha, 0x5012,
1030 "Port database changed %04x %04x %04x.\n",
1031 mb[1], mb[2], mb[3]);
1032
1033 /*
1034 * Mark all devices as missing so we will login again.
1035 */
1036 atomic_set(&vha->loop_state, LOOP_UP);
1037
1038 qla2x00_mark_all_devices_lost(vha, 1);
1039
1040 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1041 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1042 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1043
1044 qlt_async_event(mb[0], vha, mb);
1045 break;
1046
1047 case MBA_RSCN_UPDATE: /* State Change Registration */
1048 /* Check if the Vport has issued a SCR */
1049 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1050 break;
1051 /* Only handle SCNs for our Vport index. */
1052 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1053 break;
1054
1055 ql_dbg(ql_dbg_async, vha, 0x5013,
1056 "RSCN database changed -- %04x %04x %04x.\n",
1057 mb[1], mb[2], mb[3]);
1058
1059 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1060 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1061 | vha->d_id.b.al_pa;
1062 if (rscn_entry == host_pid) {
1063 ql_dbg(ql_dbg_async, vha, 0x5014,
1064 "Ignoring RSCN update to local host "
1065 "port ID (%06x).\n", host_pid);
1066 break;
1067 }
1068
1069 /* Ignore reserved bits from RSCN-payload. */
1070 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1071
1072 /* Skip RSCNs for virtual ports on the same physical port */
1073 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1074 break;
1075
1076 atomic_set(&vha->loop_down_timer, 0);
1077 vha->flags.management_server_logged_in = 0;
1078 {
1079 struct event_arg ea;
1080
1081 memset(&ea, 0, sizeof(ea));
1082 ea.event = FCME_RSCN;
1083 ea.id.b24 = rscn_entry;
1084 ea.id.b.rsvd_1 = rscn_entry >> 24;
1085 qla2x00_fcport_event_handler(vha, &ea);
1086 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1087 }
1088 break;
1089 /* case MBA_RIO_RESPONSE: */
1090 case MBA_ZIO_RESPONSE:
1091 ql_dbg(ql_dbg_async, vha, 0x5015,
1092 "[R|Z]IO update completion.\n");
1093
1094 if (IS_FWI2_CAPABLE(ha))
1095 qla24xx_process_response_queue(vha, rsp);
1096 else
1097 qla2x00_process_response_queue(rsp);
1098 break;
1099
1100 case MBA_DISCARD_RND_FRAME:
1101 ql_dbg(ql_dbg_async, vha, 0x5016,
1102 "Discard RND Frame -- %04x %04x %04x.\n",
1103 mb[1], mb[2], mb[3]);
1104 break;
1105
1106 case MBA_TRACE_NOTIFICATION:
1107 ql_dbg(ql_dbg_async, vha, 0x5017,
1108 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1109 break;
1110
1111 case MBA_ISP84XX_ALERT:
1112 ql_dbg(ql_dbg_async, vha, 0x5018,
1113 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1114 mb[1], mb[2], mb[3]);
1115
1116 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1117 switch (mb[1]) {
1118 case A84_PANIC_RECOVERY:
1119 ql_log(ql_log_info, vha, 0x5019,
1120 "Alert 84XX: panic recovery %04x %04x.\n",
1121 mb[2], mb[3]);
1122 break;
1123 case A84_OP_LOGIN_COMPLETE:
1124 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1125 ql_log(ql_log_info, vha, 0x501a,
1126 "Alert 84XX: firmware version %x.\n",
1127 ha->cs84xx->op_fw_version);
1128 break;
1129 case A84_DIAG_LOGIN_COMPLETE:
1130 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1131 ql_log(ql_log_info, vha, 0x501b,
1132 "Alert 84XX: diagnostic firmware version %x.\n",
1133 ha->cs84xx->diag_fw_version);
1134 break;
1135 case A84_GOLD_LOGIN_COMPLETE:
1136 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1137 ha->cs84xx->fw_update = 1;
1138 ql_log(ql_log_info, vha, 0x501c,
1139 "Alert 84XX: gold firmware version %x.\n",
1140 ha->cs84xx->gold_fw_version);
1141 break;
1142 default:
1143 ql_log(ql_log_warn, vha, 0x501d,
1144 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1145 mb[1], mb[2], mb[3]);
1146 }
1147 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1148 break;
1149 case MBA_DCBX_START:
1150 ql_dbg(ql_dbg_async, vha, 0x501e,
1151 "DCBX Started -- %04x %04x %04x.\n",
1152 mb[1], mb[2], mb[3]);
1153 break;
1154 case MBA_DCBX_PARAM_UPDATE:
1155 ql_dbg(ql_dbg_async, vha, 0x501f,
1156 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1157 mb[1], mb[2], mb[3]);
1158 break;
1159 case MBA_FCF_CONF_ERR:
1160 ql_dbg(ql_dbg_async, vha, 0x5020,
1161 "FCF Configuration Error -- %04x %04x %04x.\n",
1162 mb[1], mb[2], mb[3]);
1163 break;
1164 case MBA_IDC_NOTIFY:
1165 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1166 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1167 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1168 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1169 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1170 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1171 /*
1172 * Extend loop down timer since port is active.
1173 */
1174 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1175 atomic_set(&vha->loop_down_timer,
1176 LOOP_DOWN_TIME);
1177 qla2xxx_wake_dpc(vha);
1178 }
1179 }
1180 case MBA_IDC_COMPLETE:
1181 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1182 complete(&ha->lb_portup_comp);
1183 /* Fallthru */
1184 case MBA_IDC_TIME_EXT:
1185 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1186 IS_QLA8044(ha))
1187 qla81xx_idc_event(vha, mb[0], mb[1]);
1188 break;
1189
1190 case MBA_IDC_AEN:
1191 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1192 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1193 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1194 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1195 qla83xx_handle_8200_aen(vha, mb);
1196 break;
1197
1198 case MBA_DPORT_DIAGNOSTICS:
1199 ql_dbg(ql_dbg_async, vha, 0x5052,
1200 "D-Port Diagnostics: %04x result=%s\n",
1201 mb[0],
1202 mb[1] == 0 ? "start" :
1203 mb[1] == 1 ? "done (pass)" :
1204 mb[1] == 2 ? "done (error)" : "other");
1205 break;
1206
1207 case MBA_TEMPERATURE_ALERT:
1208 ql_dbg(ql_dbg_async, vha, 0x505e,
1209 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1210 if (mb[1] == 0x12)
1211 schedule_work(&ha->board_disable);
1212 break;
1213
1214 default:
1215 ql_dbg(ql_dbg_async, vha, 0x5057,
1216 "Unknown AEN:%04x %04x %04x %04x\n",
1217 mb[0], mb[1], mb[2], mb[3]);
1218 }
1219
1220 qlt_async_event(mb[0], vha, mb);
1221
1222 if (!vha->vp_idx && ha->num_vhosts)
1223 qla2x00_alert_all_vps(rsp, mb);
1224 }
1225
1226 /**
1227 * qla2x00_process_completed_request() - Process a Fast Post response.
1228 * @ha: SCSI driver HA context
1229 * @index: SRB index
1230 */
1231 void
1232 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1233 struct req_que *req, uint32_t index)
1234 {
1235 srb_t *sp;
1236 struct qla_hw_data *ha = vha->hw;
1237
1238 /* Validate handle. */
1239 if (index >= req->num_outstanding_cmds) {
1240 ql_log(ql_log_warn, vha, 0x3014,
1241 "Invalid SCSI command index (%x).\n", index);
1242
1243 if (IS_P3P_TYPE(ha))
1244 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1245 else
1246 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1247 return;
1248 }
1249
1250 sp = req->outstanding_cmds[index];
1251 if (sp) {
1252 /* Free outstanding command slot. */
1253 req->outstanding_cmds[index] = NULL;
1254
1255 /* Save ISP completion status */
1256 sp->done(sp, DID_OK << 16);
1257 } else {
1258 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1259
1260 if (IS_P3P_TYPE(ha))
1261 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1262 else
1263 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1264 }
1265 }
1266
1267 srb_t *
1268 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1269 struct req_que *req, void *iocb)
1270 {
1271 struct qla_hw_data *ha = vha->hw;
1272 sts_entry_t *pkt = iocb;
1273 srb_t *sp = NULL;
1274 uint16_t index;
1275
1276 index = LSW(pkt->handle);
1277 if (index >= req->num_outstanding_cmds) {
1278 ql_log(ql_log_warn, vha, 0x5031,
1279 "Invalid command index (%x) type %8ph.\n",
1280 index, iocb);
1281 if (IS_P3P_TYPE(ha))
1282 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1283 else
1284 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1285 goto done;
1286 }
1287 sp = req->outstanding_cmds[index];
1288 if (!sp) {
1289 ql_log(ql_log_warn, vha, 0x5032,
1290 "Invalid completion handle (%x) -- timed-out.\n", index);
1291 return sp;
1292 }
1293 if (sp->handle != index) {
1294 ql_log(ql_log_warn, vha, 0x5033,
1295 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1296 return NULL;
1297 }
1298
1299 req->outstanding_cmds[index] = NULL;
1300
1301 done:
1302 return sp;
1303 }
1304
1305 static void
1306 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1307 struct mbx_entry *mbx)
1308 {
1309 const char func[] = "MBX-IOCB";
1310 const char *type;
1311 fc_port_t *fcport;
1312 srb_t *sp;
1313 struct srb_iocb *lio;
1314 uint16_t *data;
1315 uint16_t status;
1316
1317 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1318 if (!sp)
1319 return;
1320
1321 lio = &sp->u.iocb_cmd;
1322 type = sp->name;
1323 fcport = sp->fcport;
1324 data = lio->u.logio.data;
1325
1326 data[0] = MBS_COMMAND_ERROR;
1327 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1328 QLA_LOGIO_LOGIN_RETRIED : 0;
1329 if (mbx->entry_status) {
1330 ql_dbg(ql_dbg_async, vha, 0x5043,
1331 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1332 "entry-status=%x status=%x state-flag=%x "
1333 "status-flags=%x.\n", type, sp->handle,
1334 fcport->d_id.b.domain, fcport->d_id.b.area,
1335 fcport->d_id.b.al_pa, mbx->entry_status,
1336 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1337 le16_to_cpu(mbx->status_flags));
1338
1339 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1340 (uint8_t *)mbx, sizeof(*mbx));
1341
1342 goto logio_done;
1343 }
1344
1345 status = le16_to_cpu(mbx->status);
1346 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1347 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1348 status = 0;
1349 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1350 ql_dbg(ql_dbg_async, vha, 0x5045,
1351 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1352 type, sp->handle, fcport->d_id.b.domain,
1353 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1354 le16_to_cpu(mbx->mb1));
1355
1356 data[0] = MBS_COMMAND_COMPLETE;
1357 if (sp->type == SRB_LOGIN_CMD) {
1358 fcport->port_type = FCT_TARGET;
1359 if (le16_to_cpu(mbx->mb1) & BIT_0)
1360 fcport->port_type = FCT_INITIATOR;
1361 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1362 fcport->flags |= FCF_FCP2_DEVICE;
1363 }
1364 goto logio_done;
1365 }
1366
1367 data[0] = le16_to_cpu(mbx->mb0);
1368 switch (data[0]) {
1369 case MBS_PORT_ID_USED:
1370 data[1] = le16_to_cpu(mbx->mb1);
1371 break;
1372 case MBS_LOOP_ID_USED:
1373 break;
1374 default:
1375 data[0] = MBS_COMMAND_ERROR;
1376 break;
1377 }
1378
1379 ql_log(ql_log_warn, vha, 0x5046,
1380 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1381 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1382 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1383 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1384 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1385 le16_to_cpu(mbx->mb7));
1386
1387 logio_done:
1388 sp->done(sp, 0);
1389 }
1390
1391 static void
1392 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1393 struct mbx_24xx_entry *pkt)
1394 {
1395 const char func[] = "MBX-IOCB2";
1396 srb_t *sp;
1397 struct srb_iocb *si;
1398 u16 sz, i;
1399 int res;
1400
1401 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1402 if (!sp)
1403 return;
1404
1405 si = &sp->u.iocb_cmd;
1406 sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1407
1408 for (i = 0; i < sz; i++)
1409 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1410
1411 res = (si->u.mbx.in_mb[0] & MBS_MASK);
1412
1413 sp->done(sp, res);
1414 }
1415
1416 static void
1417 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1418 struct nack_to_isp *pkt)
1419 {
1420 const char func[] = "nack";
1421 srb_t *sp;
1422 int res = 0;
1423
1424 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1425 if (!sp)
1426 return;
1427
1428 if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1429 res = QLA_FUNCTION_FAILED;
1430
1431 sp->done(sp, res);
1432 }
1433
1434 static void
1435 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1436 sts_entry_t *pkt, int iocb_type)
1437 {
1438 const char func[] = "CT_IOCB";
1439 const char *type;
1440 srb_t *sp;
1441 struct bsg_job *bsg_job;
1442 struct fc_bsg_reply *bsg_reply;
1443 uint16_t comp_status;
1444 int res = 0;
1445
1446 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1447 if (!sp)
1448 return;
1449
1450 switch (sp->type) {
1451 case SRB_CT_CMD:
1452 bsg_job = sp->u.bsg_job;
1453 bsg_reply = bsg_job->reply;
1454
1455 type = "ct pass-through";
1456
1457 comp_status = le16_to_cpu(pkt->comp_status);
1458
1459 /*
1460 * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1461 * fc payload to the caller
1462 */
1463 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1464 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1465
1466 if (comp_status != CS_COMPLETE) {
1467 if (comp_status == CS_DATA_UNDERRUN) {
1468 res = DID_OK << 16;
1469 bsg_reply->reply_payload_rcv_len =
1470 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1471
1472 ql_log(ql_log_warn, vha, 0x5048,
1473 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1474 type, comp_status,
1475 bsg_reply->reply_payload_rcv_len);
1476 } else {
1477 ql_log(ql_log_warn, vha, 0x5049,
1478 "CT pass-through-%s error comp_status=0x%x.\n",
1479 type, comp_status);
1480 res = DID_ERROR << 16;
1481 bsg_reply->reply_payload_rcv_len = 0;
1482 }
1483 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1484 (uint8_t *)pkt, sizeof(*pkt));
1485 } else {
1486 res = DID_OK << 16;
1487 bsg_reply->reply_payload_rcv_len =
1488 bsg_job->reply_payload.payload_len;
1489 bsg_job->reply_len = 0;
1490 }
1491 break;
1492 case SRB_CT_PTHRU_CMD:
1493 /*
1494 * borrowing sts_entry_24xx.comp_status.
1495 * same location as ct_entry_24xx.comp_status
1496 */
1497 res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1498 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1499 sp->name);
1500 break;
1501 }
1502
1503 sp->done(sp, res);
1504 }
1505
1506 static void
1507 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1508 struct sts_entry_24xx *pkt, int iocb_type)
1509 {
1510 const char func[] = "ELS_CT_IOCB";
1511 const char *type;
1512 srb_t *sp;
1513 struct bsg_job *bsg_job;
1514 struct fc_bsg_reply *bsg_reply;
1515 uint16_t comp_status;
1516 uint32_t fw_status[3];
1517 uint8_t* fw_sts_ptr;
1518 int res;
1519
1520 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1521 if (!sp)
1522 return;
1523 bsg_job = sp->u.bsg_job;
1524 bsg_reply = bsg_job->reply;
1525
1526 type = NULL;
1527 switch (sp->type) {
1528 case SRB_ELS_CMD_RPT:
1529 case SRB_ELS_CMD_HST:
1530 type = "els";
1531 break;
1532 case SRB_CT_CMD:
1533 type = "ct pass-through";
1534 break;
1535 case SRB_ELS_DCMD:
1536 type = "Driver ELS logo";
1537 ql_dbg(ql_dbg_user, vha, 0x5047,
1538 "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1539 sp->done(sp, 0);
1540 return;
1541 case SRB_CT_PTHRU_CMD:
1542 /* borrowing sts_entry_24xx.comp_status.
1543 same location as ct_entry_24xx.comp_status
1544 */
1545 res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1546 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1547 sp->name);
1548 sp->done(sp, res);
1549 return;
1550 default:
1551 ql_dbg(ql_dbg_user, vha, 0x503e,
1552 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1553 return;
1554 }
1555
1556 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1557 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1558 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1559
1560 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1561 * fc payload to the caller
1562 */
1563 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1564 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1565
1566 if (comp_status != CS_COMPLETE) {
1567 if (comp_status == CS_DATA_UNDERRUN) {
1568 res = DID_OK << 16;
1569 bsg_reply->reply_payload_rcv_len =
1570 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1571
1572 ql_dbg(ql_dbg_user, vha, 0x503f,
1573 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1574 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1575 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1576 le16_to_cpu(((struct els_sts_entry_24xx *)
1577 pkt)->total_byte_count));
1578 fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) +
1579 sizeof(struct fc_bsg_reply);
1580 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1581 }
1582 else {
1583 ql_dbg(ql_dbg_user, vha, 0x5040,
1584 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1585 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1586 type, sp->handle, comp_status,
1587 le16_to_cpu(((struct els_sts_entry_24xx *)
1588 pkt)->error_subcode_1),
1589 le16_to_cpu(((struct els_sts_entry_24xx *)
1590 pkt)->error_subcode_2));
1591 res = DID_ERROR << 16;
1592 bsg_reply->reply_payload_rcv_len = 0;
1593 fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) +
1594 sizeof(struct fc_bsg_reply);
1595 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1596 }
1597 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1598 (uint8_t *)pkt, sizeof(*pkt));
1599 }
1600 else {
1601 res = DID_OK << 16;
1602 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1603 bsg_job->reply_len = 0;
1604 }
1605
1606 sp->done(sp, res);
1607 }
1608
1609 static void
1610 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1611 struct logio_entry_24xx *logio)
1612 {
1613 const char func[] = "LOGIO-IOCB";
1614 const char *type;
1615 fc_port_t *fcport;
1616 srb_t *sp;
1617 struct srb_iocb *lio;
1618 uint16_t *data;
1619 uint32_t iop[2];
1620
1621 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1622 if (!sp)
1623 return;
1624
1625 lio = &sp->u.iocb_cmd;
1626 type = sp->name;
1627 fcport = sp->fcport;
1628 data = lio->u.logio.data;
1629
1630 data[0] = MBS_COMMAND_ERROR;
1631 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1632 QLA_LOGIO_LOGIN_RETRIED : 0;
1633 if (logio->entry_status) {
1634 ql_log(ql_log_warn, fcport->vha, 0x5034,
1635 "Async-%s error entry - %8phC hdl=%x"
1636 "portid=%02x%02x%02x entry-status=%x.\n",
1637 type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1638 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1639 logio->entry_status);
1640 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1641 (uint8_t *)logio, sizeof(*logio));
1642
1643 goto logio_done;
1644 }
1645
1646 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1647 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1648 "Async-%s complete - %8phC hdl=%x portid=%02x%02x%02x "
1649 "iop0=%x.\n", type, fcport->port_name, sp->handle,
1650 fcport->d_id.b.domain,
1651 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1652 le32_to_cpu(logio->io_parameter[0]));
1653
1654 vha->hw->exch_starvation = 0;
1655 data[0] = MBS_COMMAND_COMPLETE;
1656 if (sp->type != SRB_LOGIN_CMD)
1657 goto logio_done;
1658
1659 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1660 if (iop[0] & BIT_4) {
1661 fcport->port_type = FCT_TARGET;
1662 if (iop[0] & BIT_8)
1663 fcport->flags |= FCF_FCP2_DEVICE;
1664 } else if (iop[0] & BIT_5)
1665 fcport->port_type = FCT_INITIATOR;
1666
1667 if (iop[0] & BIT_7)
1668 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1669
1670 if (logio->io_parameter[7] || logio->io_parameter[8])
1671 fcport->supported_classes |= FC_COS_CLASS2;
1672 if (logio->io_parameter[9] || logio->io_parameter[10])
1673 fcport->supported_classes |= FC_COS_CLASS3;
1674
1675 goto logio_done;
1676 }
1677
1678 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1679 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1680 lio->u.logio.iop[0] = iop[0];
1681 lio->u.logio.iop[1] = iop[1];
1682 switch (iop[0]) {
1683 case LSC_SCODE_PORTID_USED:
1684 data[0] = MBS_PORT_ID_USED;
1685 data[1] = LSW(iop[1]);
1686 break;
1687 case LSC_SCODE_NPORT_USED:
1688 data[0] = MBS_LOOP_ID_USED;
1689 break;
1690 case LSC_SCODE_CMD_FAILED:
1691 if (iop[1] == 0x0606) {
1692 /*
1693 * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1694 * Target side acked.
1695 */
1696 data[0] = MBS_COMMAND_COMPLETE;
1697 goto logio_done;
1698 }
1699 data[0] = MBS_COMMAND_ERROR;
1700 break;
1701 case LSC_SCODE_NOXCB:
1702 vha->hw->exch_starvation++;
1703 if (vha->hw->exch_starvation > 5) {
1704 ql_log(ql_log_warn, vha, 0xffff,
1705 "Exchange starvation. Resetting RISC\n");
1706
1707 vha->hw->exch_starvation = 0;
1708
1709 if (IS_P3P_TYPE(vha->hw))
1710 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1711 else
1712 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1713 qla2xxx_wake_dpc(vha);
1714 }
1715 /* drop through */
1716 default:
1717 data[0] = MBS_COMMAND_ERROR;
1718 break;
1719 }
1720
1721 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1722 "Async-%s failed - %8phC hdl=%x portid=%02x%02x%02x comp=%x "
1723 "iop0=%x iop1=%x.\n", type, fcport->port_name,
1724 sp->handle, fcport->d_id.b.domain,
1725 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1726 le16_to_cpu(logio->comp_status),
1727 le32_to_cpu(logio->io_parameter[0]),
1728 le32_to_cpu(logio->io_parameter[1]));
1729
1730 logio_done:
1731 sp->done(sp, 0);
1732 }
1733
1734 static void
1735 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1736 {
1737 const char func[] = "TMF-IOCB";
1738 const char *type;
1739 fc_port_t *fcport;
1740 srb_t *sp;
1741 struct srb_iocb *iocb;
1742 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1743
1744 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1745 if (!sp)
1746 return;
1747
1748 iocb = &sp->u.iocb_cmd;
1749 type = sp->name;
1750 fcport = sp->fcport;
1751 iocb->u.tmf.data = QLA_SUCCESS;
1752
1753 if (sts->entry_status) {
1754 ql_log(ql_log_warn, fcport->vha, 0x5038,
1755 "Async-%s error - hdl=%x entry-status(%x).\n",
1756 type, sp->handle, sts->entry_status);
1757 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1758 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1759 ql_log(ql_log_warn, fcport->vha, 0x5039,
1760 "Async-%s error - hdl=%x completion status(%x).\n",
1761 type, sp->handle, sts->comp_status);
1762 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1763 } else if ((le16_to_cpu(sts->scsi_status) &
1764 SS_RESPONSE_INFO_LEN_VALID)) {
1765 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1766 ql_log(ql_log_warn, fcport->vha, 0x503b,
1767 "Async-%s error - hdl=%x not enough response(%d).\n",
1768 type, sp->handle, sts->rsp_data_len);
1769 } else if (sts->data[3]) {
1770 ql_log(ql_log_warn, fcport->vha, 0x503c,
1771 "Async-%s error - hdl=%x response(%x).\n",
1772 type, sp->handle, sts->data[3]);
1773 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1774 }
1775 }
1776
1777 if (iocb->u.tmf.data != QLA_SUCCESS)
1778 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1779 (uint8_t *)sts, sizeof(*sts));
1780
1781 sp->done(sp, 0);
1782 }
1783
1784 /**
1785 * qla2x00_process_response_queue() - Process response queue entries.
1786 * @ha: SCSI driver HA context
1787 */
1788 void
1789 qla2x00_process_response_queue(struct rsp_que *rsp)
1790 {
1791 struct scsi_qla_host *vha;
1792 struct qla_hw_data *ha = rsp->hw;
1793 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1794 sts_entry_t *pkt;
1795 uint16_t handle_cnt;
1796 uint16_t cnt;
1797
1798 vha = pci_get_drvdata(ha->pdev);
1799
1800 if (!vha->flags.online)
1801 return;
1802
1803 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1804 pkt = (sts_entry_t *)rsp->ring_ptr;
1805
1806 rsp->ring_index++;
1807 if (rsp->ring_index == rsp->length) {
1808 rsp->ring_index = 0;
1809 rsp->ring_ptr = rsp->ring;
1810 } else {
1811 rsp->ring_ptr++;
1812 }
1813
1814 if (pkt->entry_status != 0) {
1815 qla2x00_error_entry(vha, rsp, pkt);
1816 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1817 wmb();
1818 continue;
1819 }
1820
1821 switch (pkt->entry_type) {
1822 case STATUS_TYPE:
1823 qla2x00_status_entry(vha, rsp, pkt);
1824 break;
1825 case STATUS_TYPE_21:
1826 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1827 for (cnt = 0; cnt < handle_cnt; cnt++) {
1828 qla2x00_process_completed_request(vha, rsp->req,
1829 ((sts21_entry_t *)pkt)->handle[cnt]);
1830 }
1831 break;
1832 case STATUS_TYPE_22:
1833 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1834 for (cnt = 0; cnt < handle_cnt; cnt++) {
1835 qla2x00_process_completed_request(vha, rsp->req,
1836 ((sts22_entry_t *)pkt)->handle[cnt]);
1837 }
1838 break;
1839 case STATUS_CONT_TYPE:
1840 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1841 break;
1842 case MBX_IOCB_TYPE:
1843 qla2x00_mbx_iocb_entry(vha, rsp->req,
1844 (struct mbx_entry *)pkt);
1845 break;
1846 case CT_IOCB_TYPE:
1847 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1848 break;
1849 default:
1850 /* Type Not Supported. */
1851 ql_log(ql_log_warn, vha, 0x504a,
1852 "Received unknown response pkt type %x "
1853 "entry status=%x.\n",
1854 pkt->entry_type, pkt->entry_status);
1855 break;
1856 }
1857 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1858 wmb();
1859 }
1860
1861 /* Adjust ring index */
1862 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1863 }
1864
1865 static inline void
1866 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1867 uint32_t sense_len, struct rsp_que *rsp, int res)
1868 {
1869 struct scsi_qla_host *vha = sp->vha;
1870 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1871 uint32_t track_sense_len;
1872
1873 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1874 sense_len = SCSI_SENSE_BUFFERSIZE;
1875
1876 SET_CMD_SENSE_LEN(sp, sense_len);
1877 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1878 track_sense_len = sense_len;
1879
1880 if (sense_len > par_sense_len)
1881 sense_len = par_sense_len;
1882
1883 memcpy(cp->sense_buffer, sense_data, sense_len);
1884
1885 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1886 track_sense_len -= sense_len;
1887 SET_CMD_SENSE_LEN(sp, track_sense_len);
1888
1889 if (track_sense_len != 0) {
1890 rsp->status_srb = sp;
1891 cp->result = res;
1892 }
1893
1894 if (sense_len) {
1895 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1896 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1897 sp->vha->host_no, cp->device->id, cp->device->lun,
1898 cp);
1899 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1900 cp->sense_buffer, sense_len);
1901 }
1902 }
1903
1904 struct scsi_dif_tuple {
1905 __be16 guard; /* Checksum */
1906 __be16 app_tag; /* APPL identifier */
1907 __be32 ref_tag; /* Target LBA or indirect LBA */
1908 };
1909
1910 /*
1911 * Checks the guard or meta-data for the type of error
1912 * detected by the HBA. In case of errors, we set the
1913 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1914 * to indicate to the kernel that the HBA detected error.
1915 */
1916 static inline int
1917 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1918 {
1919 struct scsi_qla_host *vha = sp->vha;
1920 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1921 uint8_t *ap = &sts24->data[12];
1922 uint8_t *ep = &sts24->data[20];
1923 uint32_t e_ref_tag, a_ref_tag;
1924 uint16_t e_app_tag, a_app_tag;
1925 uint16_t e_guard, a_guard;
1926
1927 /*
1928 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1929 * would make guard field appear at offset 2
1930 */
1931 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1932 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1933 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1934 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1935 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1936 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1937
1938 ql_dbg(ql_dbg_io, vha, 0x3023,
1939 "iocb(s) %p Returned STATUS.\n", sts24);
1940
1941 ql_dbg(ql_dbg_io, vha, 0x3024,
1942 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1943 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1944 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1945 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1946 a_app_tag, e_app_tag, a_guard, e_guard);
1947
1948 /*
1949 * Ignore sector if:
1950 * For type 3: ref & app tag is all 'f's
1951 * For type 0,1,2: app tag is all 'f's
1952 */
1953 if ((a_app_tag == 0xffff) &&
1954 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1955 (a_ref_tag == 0xffffffff))) {
1956 uint32_t blocks_done, resid;
1957 sector_t lba_s = scsi_get_lba(cmd);
1958
1959 /* 2TB boundary case covered automatically with this */
1960 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1961
1962 resid = scsi_bufflen(cmd) - (blocks_done *
1963 cmd->device->sector_size);
1964
1965 scsi_set_resid(cmd, resid);
1966 cmd->result = DID_OK << 16;
1967
1968 /* Update protection tag */
1969 if (scsi_prot_sg_count(cmd)) {
1970 uint32_t i, j = 0, k = 0, num_ent;
1971 struct scatterlist *sg;
1972 struct t10_pi_tuple *spt;
1973
1974 /* Patch the corresponding protection tags */
1975 scsi_for_each_prot_sg(cmd, sg,
1976 scsi_prot_sg_count(cmd), i) {
1977 num_ent = sg_dma_len(sg) / 8;
1978 if (k + num_ent < blocks_done) {
1979 k += num_ent;
1980 continue;
1981 }
1982 j = blocks_done - k - 1;
1983 k = blocks_done;
1984 break;
1985 }
1986
1987 if (k != blocks_done) {
1988 ql_log(ql_log_warn, vha, 0x302f,
1989 "unexpected tag values tag:lba=%x:%llx)\n",
1990 e_ref_tag, (unsigned long long)lba_s);
1991 return 1;
1992 }
1993
1994 spt = page_address(sg_page(sg)) + sg->offset;
1995 spt += j;
1996
1997 spt->app_tag = 0xffff;
1998 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1999 spt->ref_tag = 0xffffffff;
2000 }
2001
2002 return 0;
2003 }
2004
2005 /* check guard */
2006 if (e_guard != a_guard) {
2007 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2008 0x10, 0x1);
2009 set_driver_byte(cmd, DRIVER_SENSE);
2010 set_host_byte(cmd, DID_ABORT);
2011 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2012 return 1;
2013 }
2014
2015 /* check ref tag */
2016 if (e_ref_tag != a_ref_tag) {
2017 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2018 0x10, 0x3);
2019 set_driver_byte(cmd, DRIVER_SENSE);
2020 set_host_byte(cmd, DID_ABORT);
2021 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2022 return 1;
2023 }
2024
2025 /* check appl tag */
2026 if (e_app_tag != a_app_tag) {
2027 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2028 0x10, 0x2);
2029 set_driver_byte(cmd, DRIVER_SENSE);
2030 set_host_byte(cmd, DID_ABORT);
2031 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
2032 return 1;
2033 }
2034
2035 return 1;
2036 }
2037
2038 static void
2039 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2040 struct req_que *req, uint32_t index)
2041 {
2042 struct qla_hw_data *ha = vha->hw;
2043 srb_t *sp;
2044 uint16_t comp_status;
2045 uint16_t scsi_status;
2046 uint16_t thread_id;
2047 uint32_t rval = EXT_STATUS_OK;
2048 struct bsg_job *bsg_job = NULL;
2049 struct fc_bsg_request *bsg_request;
2050 struct fc_bsg_reply *bsg_reply;
2051 sts_entry_t *sts;
2052 struct sts_entry_24xx *sts24;
2053 sts = (sts_entry_t *) pkt;
2054 sts24 = (struct sts_entry_24xx *) pkt;
2055
2056 /* Validate handle. */
2057 if (index >= req->num_outstanding_cmds) {
2058 ql_log(ql_log_warn, vha, 0x70af,
2059 "Invalid SCSI completion handle 0x%x.\n", index);
2060 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2061 return;
2062 }
2063
2064 sp = req->outstanding_cmds[index];
2065 if (!sp) {
2066 ql_log(ql_log_warn, vha, 0x70b0,
2067 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2068 req->id, index);
2069
2070 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2071 return;
2072 }
2073
2074 /* Free outstanding command slot. */
2075 req->outstanding_cmds[index] = NULL;
2076 bsg_job = sp->u.bsg_job;
2077 bsg_request = bsg_job->request;
2078 bsg_reply = bsg_job->reply;
2079
2080 if (IS_FWI2_CAPABLE(ha)) {
2081 comp_status = le16_to_cpu(sts24->comp_status);
2082 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2083 } else {
2084 comp_status = le16_to_cpu(sts->comp_status);
2085 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2086 }
2087
2088 thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2089 switch (comp_status) {
2090 case CS_COMPLETE:
2091 if (scsi_status == 0) {
2092 bsg_reply->reply_payload_rcv_len =
2093 bsg_job->reply_payload.payload_len;
2094 vha->qla_stats.input_bytes +=
2095 bsg_reply->reply_payload_rcv_len;
2096 vha->qla_stats.input_requests++;
2097 rval = EXT_STATUS_OK;
2098 }
2099 goto done;
2100
2101 case CS_DATA_OVERRUN:
2102 ql_dbg(ql_dbg_user, vha, 0x70b1,
2103 "Command completed with date overrun thread_id=%d\n",
2104 thread_id);
2105 rval = EXT_STATUS_DATA_OVERRUN;
2106 break;
2107
2108 case CS_DATA_UNDERRUN:
2109 ql_dbg(ql_dbg_user, vha, 0x70b2,
2110 "Command completed with date underrun thread_id=%d\n",
2111 thread_id);
2112 rval = EXT_STATUS_DATA_UNDERRUN;
2113 break;
2114 case CS_BIDIR_RD_OVERRUN:
2115 ql_dbg(ql_dbg_user, vha, 0x70b3,
2116 "Command completed with read data overrun thread_id=%d\n",
2117 thread_id);
2118 rval = EXT_STATUS_DATA_OVERRUN;
2119 break;
2120
2121 case CS_BIDIR_RD_WR_OVERRUN:
2122 ql_dbg(ql_dbg_user, vha, 0x70b4,
2123 "Command completed with read and write data overrun "
2124 "thread_id=%d\n", thread_id);
2125 rval = EXT_STATUS_DATA_OVERRUN;
2126 break;
2127
2128 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2129 ql_dbg(ql_dbg_user, vha, 0x70b5,
2130 "Command completed with read data over and write data "
2131 "underrun thread_id=%d\n", thread_id);
2132 rval = EXT_STATUS_DATA_OVERRUN;
2133 break;
2134
2135 case CS_BIDIR_RD_UNDERRUN:
2136 ql_dbg(ql_dbg_user, vha, 0x70b6,
2137 "Command completed with read data data underrun "
2138 "thread_id=%d\n", thread_id);
2139 rval = EXT_STATUS_DATA_UNDERRUN;
2140 break;
2141
2142 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2143 ql_dbg(ql_dbg_user, vha, 0x70b7,
2144 "Command completed with read data under and write data "
2145 "overrun thread_id=%d\n", thread_id);
2146 rval = EXT_STATUS_DATA_UNDERRUN;
2147 break;
2148
2149 case CS_BIDIR_RD_WR_UNDERRUN:
2150 ql_dbg(ql_dbg_user, vha, 0x70b8,
2151 "Command completed with read and write data underrun "
2152 "thread_id=%d\n", thread_id);
2153 rval = EXT_STATUS_DATA_UNDERRUN;
2154 break;
2155
2156 case CS_BIDIR_DMA:
2157 ql_dbg(ql_dbg_user, vha, 0x70b9,
2158 "Command completed with data DMA error thread_id=%d\n",
2159 thread_id);
2160 rval = EXT_STATUS_DMA_ERR;
2161 break;
2162
2163 case CS_TIMEOUT:
2164 ql_dbg(ql_dbg_user, vha, 0x70ba,
2165 "Command completed with timeout thread_id=%d\n",
2166 thread_id);
2167 rval = EXT_STATUS_TIMEOUT;
2168 break;
2169 default:
2170 ql_dbg(ql_dbg_user, vha, 0x70bb,
2171 "Command completed with completion status=0x%x "
2172 "thread_id=%d\n", comp_status, thread_id);
2173 rval = EXT_STATUS_ERR;
2174 break;
2175 }
2176 bsg_reply->reply_payload_rcv_len = 0;
2177
2178 done:
2179 /* Return the vendor specific reply to API */
2180 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2181 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2182 /* Always return DID_OK, bsg will send the vendor specific response
2183 * in this case only */
2184 sp->done(sp, DID_OK << 6);
2185
2186 }
2187
2188 /**
2189 * qla2x00_status_entry() - Process a Status IOCB entry.
2190 * @ha: SCSI driver HA context
2191 * @pkt: Entry pointer
2192 */
2193 static void
2194 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2195 {
2196 srb_t *sp;
2197 fc_port_t *fcport;
2198 struct scsi_cmnd *cp;
2199 sts_entry_t *sts;
2200 struct sts_entry_24xx *sts24;
2201 uint16_t comp_status;
2202 uint16_t scsi_status;
2203 uint16_t ox_id;
2204 uint8_t lscsi_status;
2205 int32_t resid;
2206 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2207 fw_resid_len;
2208 uint8_t *rsp_info, *sense_data;
2209 struct qla_hw_data *ha = vha->hw;
2210 uint32_t handle;
2211 uint16_t que;
2212 struct req_que *req;
2213 int logit = 1;
2214 int res = 0;
2215 uint16_t state_flags = 0;
2216 uint16_t retry_delay = 0;
2217 uint8_t no_logout = 0;
2218
2219 sts = (sts_entry_t *) pkt;
2220 sts24 = (struct sts_entry_24xx *) pkt;
2221 if (IS_FWI2_CAPABLE(ha)) {
2222 comp_status = le16_to_cpu(sts24->comp_status);
2223 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2224 state_flags = le16_to_cpu(sts24->state_flags);
2225 } else {
2226 comp_status = le16_to_cpu(sts->comp_status);
2227 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2228 }
2229 handle = (uint32_t) LSW(sts->handle);
2230 que = MSW(sts->handle);
2231 req = ha->req_q_map[que];
2232
2233 /* Check for invalid queue pointer */
2234 if (req == NULL ||
2235 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2236 ql_dbg(ql_dbg_io, vha, 0x3059,
2237 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2238 "que=%u.\n", sts->handle, req, que);
2239 return;
2240 }
2241
2242 /* Validate handle. */
2243 if (handle < req->num_outstanding_cmds) {
2244 sp = req->outstanding_cmds[handle];
2245 if (!sp) {
2246 ql_dbg(ql_dbg_io, vha, 0x3075,
2247 "%s(%ld): Already returned command for status handle (0x%x).\n",
2248 __func__, vha->host_no, sts->handle);
2249 return;
2250 }
2251 } else {
2252 ql_dbg(ql_dbg_io, vha, 0x3017,
2253 "Invalid status handle, out of range (0x%x).\n",
2254 sts->handle);
2255
2256 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2257 if (IS_P3P_TYPE(ha))
2258 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2259 else
2260 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2261 qla2xxx_wake_dpc(vha);
2262 }
2263 return;
2264 }
2265
2266 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2267 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2268 return;
2269 }
2270
2271 /* Task Management completion. */
2272 if (sp->type == SRB_TM_CMD) {
2273 qla24xx_tm_iocb_entry(vha, req, pkt);
2274 return;
2275 }
2276
2277 /* Fast path completion. */
2278 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2279 qla2x00_process_completed_request(vha, req, handle);
2280
2281 return;
2282 }
2283
2284 req->outstanding_cmds[handle] = NULL;
2285 cp = GET_CMD_SP(sp);
2286 if (cp == NULL) {
2287 ql_dbg(ql_dbg_io, vha, 0x3018,
2288 "Command already returned (0x%x/%p).\n",
2289 sts->handle, sp);
2290
2291 return;
2292 }
2293
2294 lscsi_status = scsi_status & STATUS_MASK;
2295
2296 fcport = sp->fcport;
2297
2298 ox_id = 0;
2299 sense_len = par_sense_len = rsp_info_len = resid_len =
2300 fw_resid_len = 0;
2301 if (IS_FWI2_CAPABLE(ha)) {
2302 if (scsi_status & SS_SENSE_LEN_VALID)
2303 sense_len = le32_to_cpu(sts24->sense_len);
2304 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2305 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2306 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2307 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2308 if (comp_status == CS_DATA_UNDERRUN)
2309 fw_resid_len = le32_to_cpu(sts24->residual_len);
2310 rsp_info = sts24->data;
2311 sense_data = sts24->data;
2312 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2313 ox_id = le16_to_cpu(sts24->ox_id);
2314 par_sense_len = sizeof(sts24->data);
2315 /* Valid values of the retry delay timer are 0x1-0xffef */
2316 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2317 retry_delay = sts24->retry_delay;
2318 } else {
2319 if (scsi_status & SS_SENSE_LEN_VALID)
2320 sense_len = le16_to_cpu(sts->req_sense_length);
2321 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2322 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2323 resid_len = le32_to_cpu(sts->residual_length);
2324 rsp_info = sts->rsp_info;
2325 sense_data = sts->req_sense_data;
2326 par_sense_len = sizeof(sts->req_sense_data);
2327 }
2328
2329 /* Check for any FCP transport errors. */
2330 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2331 /* Sense data lies beyond any FCP RESPONSE data. */
2332 if (IS_FWI2_CAPABLE(ha)) {
2333 sense_data += rsp_info_len;
2334 par_sense_len -= rsp_info_len;
2335 }
2336 if (rsp_info_len > 3 && rsp_info[3]) {
2337 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2338 "FCP I/O protocol failure (0x%x/0x%x).\n",
2339 rsp_info_len, rsp_info[3]);
2340
2341 res = DID_BUS_BUSY << 16;
2342 goto out;
2343 }
2344 }
2345
2346 /* Check for overrun. */
2347 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2348 scsi_status & SS_RESIDUAL_OVER)
2349 comp_status = CS_DATA_OVERRUN;
2350
2351 /*
2352 * Check retry_delay_timer value if we receive a busy or
2353 * queue full.
2354 */
2355 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2356 lscsi_status == SAM_STAT_BUSY)
2357 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2358
2359 /*
2360 * Based on Host and scsi status generate status code for Linux
2361 */
2362 switch (comp_status) {
2363 case CS_COMPLETE:
2364 case CS_QUEUE_FULL:
2365 if (scsi_status == 0) {
2366 res = DID_OK << 16;
2367 break;
2368 }
2369 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2370 resid = resid_len;
2371 scsi_set_resid(cp, resid);
2372
2373 if (!lscsi_status &&
2374 ((unsigned)(scsi_bufflen(cp) - resid) <
2375 cp->underflow)) {
2376 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2377 "Mid-layer underflow "
2378 "detected (0x%x of 0x%x bytes).\n",
2379 resid, scsi_bufflen(cp));
2380
2381 res = DID_ERROR << 16;
2382 break;
2383 }
2384 }
2385 res = DID_OK << 16 | lscsi_status;
2386
2387 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2388 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2389 "QUEUE FULL detected.\n");
2390 break;
2391 }
2392 logit = 0;
2393 if (lscsi_status != SS_CHECK_CONDITION)
2394 break;
2395
2396 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2397 if (!(scsi_status & SS_SENSE_LEN_VALID))
2398 break;
2399
2400 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2401 rsp, res);
2402 break;
2403
2404 case CS_DATA_UNDERRUN:
2405 /* Use F/W calculated residual length. */
2406 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2407 scsi_set_resid(cp, resid);
2408 if (scsi_status & SS_RESIDUAL_UNDER) {
2409 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2410 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2411 "Dropped frame(s) detected "
2412 "(0x%x of 0x%x bytes).\n",
2413 resid, scsi_bufflen(cp));
2414
2415 res = DID_ERROR << 16 | lscsi_status;
2416 goto check_scsi_status;
2417 }
2418
2419 if (!lscsi_status &&
2420 ((unsigned)(scsi_bufflen(cp) - resid) <
2421 cp->underflow)) {
2422 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2423 "Mid-layer underflow "
2424 "detected (0x%x of 0x%x bytes).\n",
2425 resid, scsi_bufflen(cp));
2426
2427 res = DID_ERROR << 16;
2428 break;
2429 }
2430 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2431 lscsi_status != SAM_STAT_BUSY) {
2432 /*
2433 * scsi status of task set and busy are considered to be
2434 * task not completed.
2435 */
2436
2437 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2438 "Dropped frame(s) detected (0x%x "
2439 "of 0x%x bytes).\n", resid,
2440 scsi_bufflen(cp));
2441
2442 res = DID_ERROR << 16 | lscsi_status;
2443 goto check_scsi_status;
2444 } else {
2445 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2446 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2447 scsi_status, lscsi_status);
2448 }
2449
2450 res = DID_OK << 16 | lscsi_status;
2451 logit = 0;
2452
2453 check_scsi_status:
2454 /*
2455 * Check to see if SCSI Status is non zero. If so report SCSI
2456 * Status.
2457 */
2458 if (lscsi_status != 0) {
2459 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2460 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2461 "QUEUE FULL detected.\n");
2462 logit = 1;
2463 break;
2464 }
2465 if (lscsi_status != SS_CHECK_CONDITION)
2466 break;
2467
2468 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2469 if (!(scsi_status & SS_SENSE_LEN_VALID))
2470 break;
2471
2472 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2473 sense_len, rsp, res);
2474 }
2475 break;
2476
2477 case CS_PORT_LOGGED_OUT:
2478 no_logout = 1;
2479 case CS_PORT_CONFIG_CHG:
2480 case CS_PORT_BUSY:
2481 case CS_INCOMPLETE:
2482 case CS_PORT_UNAVAILABLE:
2483 case CS_TIMEOUT:
2484 case CS_RESET:
2485
2486 /*
2487 * We are going to have the fc class block the rport
2488 * while we try to recover so instruct the mid layer
2489 * to requeue until the class decides how to handle this.
2490 */
2491 res = DID_TRANSPORT_DISRUPTED << 16;
2492
2493 if (comp_status == CS_TIMEOUT) {
2494 if (IS_FWI2_CAPABLE(ha))
2495 break;
2496 else if ((le16_to_cpu(sts->status_flags) &
2497 SF_LOGOUT_SENT) == 0)
2498 break;
2499 }
2500
2501 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2502 ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2503 "Port to be marked lost on fcport=%02x%02x%02x, current "
2504 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2505 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2506 port_state_str[atomic_read(&fcport->state)],
2507 comp_status);
2508
2509 if (no_logout)
2510 fcport->logout_on_delete = 0;
2511
2512 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2513 qlt_schedule_sess_for_deletion_lock(fcport);
2514 }
2515
2516 break;
2517
2518 case CS_ABORTED:
2519 res = DID_RESET << 16;
2520 break;
2521
2522 case CS_DIF_ERROR:
2523 logit = qla2x00_handle_dif_error(sp, sts24);
2524 res = cp->result;
2525 break;
2526
2527 case CS_TRANSPORT:
2528 res = DID_ERROR << 16;
2529
2530 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2531 break;
2532
2533 if (state_flags & BIT_4)
2534 scmd_printk(KERN_WARNING, cp,
2535 "Unsupported device '%s' found.\n",
2536 cp->device->vendor);
2537 break;
2538
2539 default:
2540 res = DID_ERROR << 16;
2541 break;
2542 }
2543
2544 out:
2545 if (logit)
2546 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2547 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2548 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2549 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2550 comp_status, scsi_status, res, vha->host_no,
2551 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2552 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2553 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2554 resid_len, fw_resid_len, sp, cp);
2555
2556 if (rsp->status_srb == NULL)
2557 sp->done(sp, res);
2558 }
2559
2560 /**
2561 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2562 * @ha: SCSI driver HA context
2563 * @pkt: Entry pointer
2564 *
2565 * Extended sense data.
2566 */
2567 static void
2568 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2569 {
2570 uint8_t sense_sz = 0;
2571 struct qla_hw_data *ha = rsp->hw;
2572 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2573 srb_t *sp = rsp->status_srb;
2574 struct scsi_cmnd *cp;
2575 uint32_t sense_len;
2576 uint8_t *sense_ptr;
2577
2578 if (!sp || !GET_CMD_SENSE_LEN(sp))
2579 return;
2580
2581 sense_len = GET_CMD_SENSE_LEN(sp);
2582 sense_ptr = GET_CMD_SENSE_PTR(sp);
2583
2584 cp = GET_CMD_SP(sp);
2585 if (cp == NULL) {
2586 ql_log(ql_log_warn, vha, 0x3025,
2587 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2588
2589 rsp->status_srb = NULL;
2590 return;
2591 }
2592
2593 if (sense_len > sizeof(pkt->data))
2594 sense_sz = sizeof(pkt->data);
2595 else
2596 sense_sz = sense_len;
2597
2598 /* Move sense data. */
2599 if (IS_FWI2_CAPABLE(ha))
2600 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2601 memcpy(sense_ptr, pkt->data, sense_sz);
2602 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2603 sense_ptr, sense_sz);
2604
2605 sense_len -= sense_sz;
2606 sense_ptr += sense_sz;
2607
2608 SET_CMD_SENSE_PTR(sp, sense_ptr);
2609 SET_CMD_SENSE_LEN(sp, sense_len);
2610
2611 /* Place command on done queue. */
2612 if (sense_len == 0) {
2613 rsp->status_srb = NULL;
2614 sp->done(sp, cp->result);
2615 }
2616 }
2617
2618 /**
2619 * qla2x00_error_entry() - Process an error entry.
2620 * @ha: SCSI driver HA context
2621 * @pkt: Entry pointer
2622 */
2623 static void
2624 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2625 {
2626 srb_t *sp;
2627 struct qla_hw_data *ha = vha->hw;
2628 const char func[] = "ERROR-IOCB";
2629 uint16_t que = MSW(pkt->handle);
2630 struct req_que *req = NULL;
2631 int res = DID_ERROR << 16;
2632
2633 ql_dbg(ql_dbg_async, vha, 0x502a,
2634 "type of error status in response: 0x%x\n", pkt->entry_status);
2635
2636 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2637 goto fatal;
2638
2639 req = ha->req_q_map[que];
2640
2641 if (pkt->entry_status & RF_BUSY)
2642 res = DID_BUS_BUSY << 16;
2643
2644 if (pkt->entry_type == NOTIFY_ACK_TYPE &&
2645 pkt->handle == QLA_TGT_SKIP_HANDLE)
2646 return;
2647
2648 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2649 if (sp) {
2650 sp->done(sp, res);
2651 return;
2652 }
2653 fatal:
2654 ql_log(ql_log_warn, vha, 0x5030,
2655 "Error entry - invalid handle/queue (%04x).\n", que);
2656 }
2657
2658 /**
2659 * qla24xx_mbx_completion() - Process mailbox command completions.
2660 * @ha: SCSI driver HA context
2661 * @mb0: Mailbox0 register
2662 */
2663 static void
2664 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2665 {
2666 uint16_t cnt;
2667 uint32_t mboxes;
2668 uint16_t __iomem *wptr;
2669 struct qla_hw_data *ha = vha->hw;
2670 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2671
2672 /* Read all mbox registers? */
2673 mboxes = (1 << ha->mbx_count) - 1;
2674 if (!ha->mcp)
2675 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2676 else
2677 mboxes = ha->mcp->in_mb;
2678
2679 /* Load return mailbox registers. */
2680 ha->flags.mbox_int = 1;
2681 ha->mailbox_out[0] = mb0;
2682 mboxes >>= 1;
2683 wptr = (uint16_t __iomem *)&reg->mailbox1;
2684
2685 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2686 if (mboxes & BIT_0)
2687 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2688
2689 mboxes >>= 1;
2690 wptr++;
2691 }
2692 }
2693
2694 static void
2695 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2696 struct abort_entry_24xx *pkt)
2697 {
2698 const char func[] = "ABT_IOCB";
2699 srb_t *sp;
2700 struct srb_iocb *abt;
2701
2702 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2703 if (!sp)
2704 return;
2705
2706 abt = &sp->u.iocb_cmd;
2707 abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
2708 sp->done(sp, 0);
2709 }
2710
2711 /**
2712 * qla24xx_process_response_queue() - Process response queue entries.
2713 * @ha: SCSI driver HA context
2714 */
2715 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2716 struct rsp_que *rsp)
2717 {
2718 struct sts_entry_24xx *pkt;
2719 struct qla_hw_data *ha = vha->hw;
2720
2721 if (!ha->flags.fw_started)
2722 return;
2723
2724 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2725 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2726
2727 rsp->ring_index++;
2728 if (rsp->ring_index == rsp->length) {
2729 rsp->ring_index = 0;
2730 rsp->ring_ptr = rsp->ring;
2731 } else {
2732 rsp->ring_ptr++;
2733 }
2734
2735 if (pkt->entry_status != 0) {
2736 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2737
2738 if (qlt_24xx_process_response_error(vha, pkt))
2739 goto process_err;
2740
2741 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2742 wmb();
2743 continue;
2744 }
2745 process_err:
2746
2747 switch (pkt->entry_type) {
2748 case STATUS_TYPE:
2749 qla2x00_status_entry(vha, rsp, pkt);
2750 break;
2751 case STATUS_CONT_TYPE:
2752 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2753 break;
2754 case VP_RPT_ID_IOCB_TYPE:
2755 qla24xx_report_id_acquisition(vha,
2756 (struct vp_rpt_id_entry_24xx *)pkt);
2757 break;
2758 case LOGINOUT_PORT_IOCB_TYPE:
2759 qla24xx_logio_entry(vha, rsp->req,
2760 (struct logio_entry_24xx *)pkt);
2761 break;
2762 case CT_IOCB_TYPE:
2763 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2764 break;
2765 case ELS_IOCB_TYPE:
2766 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2767 break;
2768 case ABTS_RECV_24XX:
2769 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2770 /* ensure that the ATIO queue is empty */
2771 qlt_handle_abts_recv(vha, (response_t *)pkt);
2772 break;
2773 } else {
2774 /* drop through */
2775 qlt_24xx_process_atio_queue(vha, 1);
2776 }
2777 case ABTS_RESP_24XX:
2778 case CTIO_TYPE7:
2779 case CTIO_CRC2:
2780 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2781 break;
2782 case NOTIFY_ACK_TYPE:
2783 if (pkt->handle == QLA_TGT_SKIP_HANDLE)
2784 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2785 else
2786 qla24xxx_nack_iocb_entry(vha, rsp->req,
2787 (struct nack_to_isp *)pkt);
2788 break;
2789 case MARKER_TYPE:
2790 /* Do nothing in this case, this check is to prevent it
2791 * from falling into default case
2792 */
2793 break;
2794 case ABORT_IOCB_TYPE:
2795 qla24xx_abort_iocb_entry(vha, rsp->req,
2796 (struct abort_entry_24xx *)pkt);
2797 break;
2798 case MBX_IOCB_TYPE:
2799 qla24xx_mbx_iocb_entry(vha, rsp->req,
2800 (struct mbx_24xx_entry *)pkt);
2801 break;
2802 default:
2803 /* Type Not Supported. */
2804 ql_dbg(ql_dbg_async, vha, 0x5042,
2805 "Received unknown response pkt type %x "
2806 "entry status=%x.\n",
2807 pkt->entry_type, pkt->entry_status);
2808 break;
2809 }
2810 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2811 wmb();
2812 }
2813
2814 /* Adjust ring index */
2815 if (IS_P3P_TYPE(ha)) {
2816 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2817 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2818 } else {
2819 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2820 }
2821 }
2822
2823 static void
2824 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2825 {
2826 int rval;
2827 uint32_t cnt;
2828 struct qla_hw_data *ha = vha->hw;
2829 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2830
2831 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2832 !IS_QLA27XX(ha))
2833 return;
2834
2835 rval = QLA_SUCCESS;
2836 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2837 RD_REG_DWORD(&reg->iobase_addr);
2838 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2839 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2840 rval == QLA_SUCCESS; cnt--) {
2841 if (cnt) {
2842 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2843 udelay(10);
2844 } else
2845 rval = QLA_FUNCTION_TIMEOUT;
2846 }
2847 if (rval == QLA_SUCCESS)
2848 goto next_test;
2849
2850 rval = QLA_SUCCESS;
2851 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2852 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2853 rval == QLA_SUCCESS; cnt--) {
2854 if (cnt) {
2855 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2856 udelay(10);
2857 } else
2858 rval = QLA_FUNCTION_TIMEOUT;
2859 }
2860 if (rval != QLA_SUCCESS)
2861 goto done;
2862
2863 next_test:
2864 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2865 ql_log(ql_log_info, vha, 0x504c,
2866 "Additional code -- 0x55AA.\n");
2867
2868 done:
2869 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2870 RD_REG_DWORD(&reg->iobase_window);
2871 }
2872
2873 /**
2874 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2875 * @irq:
2876 * @dev_id: SCSI driver HA context
2877 *
2878 * Called by system whenever the host adapter generates an interrupt.
2879 *
2880 * Returns handled flag.
2881 */
2882 irqreturn_t
2883 qla24xx_intr_handler(int irq, void *dev_id)
2884 {
2885 scsi_qla_host_t *vha;
2886 struct qla_hw_data *ha;
2887 struct device_reg_24xx __iomem *reg;
2888 int status;
2889 unsigned long iter;
2890 uint32_t stat;
2891 uint32_t hccr;
2892 uint16_t mb[8];
2893 struct rsp_que *rsp;
2894 unsigned long flags;
2895
2896 rsp = (struct rsp_que *) dev_id;
2897 if (!rsp) {
2898 ql_log(ql_log_info, NULL, 0x5059,
2899 "%s: NULL response queue pointer.\n", __func__);
2900 return IRQ_NONE;
2901 }
2902
2903 ha = rsp->hw;
2904 reg = &ha->iobase->isp24;
2905 status = 0;
2906
2907 if (unlikely(pci_channel_offline(ha->pdev)))
2908 return IRQ_HANDLED;
2909
2910 spin_lock_irqsave(&ha->hardware_lock, flags);
2911 vha = pci_get_drvdata(ha->pdev);
2912 for (iter = 50; iter--; ) {
2913 stat = RD_REG_DWORD(&reg->host_status);
2914 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2915 break;
2916 if (stat & HSRX_RISC_PAUSED) {
2917 if (unlikely(pci_channel_offline(ha->pdev)))
2918 break;
2919
2920 hccr = RD_REG_DWORD(&reg->hccr);
2921
2922 ql_log(ql_log_warn, vha, 0x504b,
2923 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2924 hccr);
2925
2926 qla2xxx_check_risc_status(vha);
2927
2928 ha->isp_ops->fw_dump(vha, 1);
2929 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2930 break;
2931 } else if ((stat & HSRX_RISC_INT) == 0)
2932 break;
2933
2934 switch (stat & 0xff) {
2935 case INTR_ROM_MB_SUCCESS:
2936 case INTR_ROM_MB_FAILED:
2937 case INTR_MB_SUCCESS:
2938 case INTR_MB_FAILED:
2939 qla24xx_mbx_completion(vha, MSW(stat));
2940 status |= MBX_INTERRUPT;
2941
2942 break;
2943 case INTR_ASYNC_EVENT:
2944 mb[0] = MSW(stat);
2945 mb[1] = RD_REG_WORD(&reg->mailbox1);
2946 mb[2] = RD_REG_WORD(&reg->mailbox2);
2947 mb[3] = RD_REG_WORD(&reg->mailbox3);
2948 qla2x00_async_event(vha, rsp, mb);
2949 break;
2950 case INTR_RSP_QUE_UPDATE:
2951 case INTR_RSP_QUE_UPDATE_83XX:
2952 qla24xx_process_response_queue(vha, rsp);
2953 break;
2954 case INTR_ATIO_QUE_UPDATE:{
2955 unsigned long flags2;
2956 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2957 qlt_24xx_process_atio_queue(vha, 1);
2958 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2959 break;
2960 }
2961 case INTR_ATIO_RSP_QUE_UPDATE: {
2962 unsigned long flags2;
2963 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2964 qlt_24xx_process_atio_queue(vha, 1);
2965 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2966
2967 qla24xx_process_response_queue(vha, rsp);
2968 break;
2969 }
2970 default:
2971 ql_dbg(ql_dbg_async, vha, 0x504f,
2972 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2973 break;
2974 }
2975 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2976 RD_REG_DWORD_RELAXED(&reg->hccr);
2977 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2978 ndelay(3500);
2979 }
2980 qla2x00_handle_mbx_completion(ha, status);
2981 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2982
2983 return IRQ_HANDLED;
2984 }
2985
2986 static irqreturn_t
2987 qla24xx_msix_rsp_q(int irq, void *dev_id)
2988 {
2989 struct qla_hw_data *ha;
2990 struct rsp_que *rsp;
2991 struct device_reg_24xx __iomem *reg;
2992 struct scsi_qla_host *vha;
2993 unsigned long flags;
2994 uint32_t stat = 0;
2995
2996 rsp = (struct rsp_que *) dev_id;
2997 if (!rsp) {
2998 ql_log(ql_log_info, NULL, 0x505a,
2999 "%s: NULL response queue pointer.\n", __func__);
3000 return IRQ_NONE;
3001 }
3002 ha = rsp->hw;
3003 reg = &ha->iobase->isp24;
3004
3005 spin_lock_irqsave(&ha->hardware_lock, flags);
3006
3007 vha = pci_get_drvdata(ha->pdev);
3008 /*
3009 * Use host_status register to check to PCI disconnection before we
3010 * we process the response queue.
3011 */
3012 stat = RD_REG_DWORD(&reg->host_status);
3013 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3014 goto out;
3015 qla24xx_process_response_queue(vha, rsp);
3016 if (!ha->flags.disable_msix_handshake) {
3017 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3018 RD_REG_DWORD_RELAXED(&reg->hccr);
3019 }
3020 out:
3021 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3022
3023 return IRQ_HANDLED;
3024 }
3025
3026 static irqreturn_t
3027 qla24xx_msix_default(int irq, void *dev_id)
3028 {
3029 scsi_qla_host_t *vha;
3030 struct qla_hw_data *ha;
3031 struct rsp_que *rsp;
3032 struct device_reg_24xx __iomem *reg;
3033 int status;
3034 uint32_t stat;
3035 uint32_t hccr;
3036 uint16_t mb[8];
3037 unsigned long flags;
3038
3039 rsp = (struct rsp_que *) dev_id;
3040 if (!rsp) {
3041 ql_log(ql_log_info, NULL, 0x505c,
3042 "%s: NULL response queue pointer.\n", __func__);
3043 return IRQ_NONE;
3044 }
3045 ha = rsp->hw;
3046 reg = &ha->iobase->isp24;
3047 status = 0;
3048
3049 spin_lock_irqsave(&ha->hardware_lock, flags);
3050 vha = pci_get_drvdata(ha->pdev);
3051 do {
3052 stat = RD_REG_DWORD(&reg->host_status);
3053 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3054 break;
3055 if (stat & HSRX_RISC_PAUSED) {
3056 if (unlikely(pci_channel_offline(ha->pdev)))
3057 break;
3058
3059 hccr = RD_REG_DWORD(&reg->hccr);
3060
3061 ql_log(ql_log_info, vha, 0x5050,
3062 "RISC paused -- HCCR=%x, Dumping firmware.\n",
3063 hccr);
3064
3065 qla2xxx_check_risc_status(vha);
3066
3067 ha->isp_ops->fw_dump(vha, 1);
3068 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3069 break;
3070 } else if ((stat & HSRX_RISC_INT) == 0)
3071 break;
3072
3073 switch (stat & 0xff) {
3074 case INTR_ROM_MB_SUCCESS:
3075 case INTR_ROM_MB_FAILED:
3076 case INTR_MB_SUCCESS:
3077 case INTR_MB_FAILED:
3078 qla24xx_mbx_completion(vha, MSW(stat));
3079 status |= MBX_INTERRUPT;
3080
3081 break;
3082 case INTR_ASYNC_EVENT:
3083 mb[0] = MSW(stat);
3084 mb[1] = RD_REG_WORD(&reg->mailbox1);
3085 mb[2] = RD_REG_WORD(&reg->mailbox2);
3086 mb[3] = RD_REG_WORD(&reg->mailbox3);
3087 qla2x00_async_event(vha, rsp, mb);
3088 break;
3089 case INTR_RSP_QUE_UPDATE:
3090 case INTR_RSP_QUE_UPDATE_83XX:
3091 qla24xx_process_response_queue(vha, rsp);
3092 break;
3093 case INTR_ATIO_QUE_UPDATE:{
3094 unsigned long flags2;
3095 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3096 qlt_24xx_process_atio_queue(vha, 1);
3097 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3098 break;
3099 }
3100 case INTR_ATIO_RSP_QUE_UPDATE: {
3101 unsigned long flags2;
3102 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
3103 qlt_24xx_process_atio_queue(vha, 1);
3104 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
3105
3106 qla24xx_process_response_queue(vha, rsp);
3107 break;
3108 }
3109 default:
3110 ql_dbg(ql_dbg_async, vha, 0x5051,
3111 "Unrecognized interrupt type (%d).\n", stat & 0xff);
3112 break;
3113 }
3114 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3115 } while (0);
3116 qla2x00_handle_mbx_completion(ha, status);
3117 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3118
3119 return IRQ_HANDLED;
3120 }
3121
3122 irqreturn_t
3123 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3124 {
3125 struct qla_hw_data *ha;
3126 struct qla_qpair *qpair;
3127 struct device_reg_24xx __iomem *reg;
3128 unsigned long flags;
3129
3130 qpair = dev_id;
3131 if (!qpair) {
3132 ql_log(ql_log_info, NULL, 0x505b,
3133 "%s: NULL response queue pointer.\n", __func__);
3134 return IRQ_NONE;
3135 }
3136 ha = qpair->hw;
3137
3138 /* Clear the interrupt, if enabled, for this response queue */
3139 if (unlikely(!ha->flags.disable_msix_handshake)) {
3140 reg = &ha->iobase->isp24;
3141 spin_lock_irqsave(&ha->hardware_lock, flags);
3142 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
3143 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3144 }
3145
3146 queue_work(ha->wq, &qpair->q_work);
3147
3148 return IRQ_HANDLED;
3149 }
3150
3151 /* Interrupt handling helpers. */
3152
3153 struct qla_init_msix_entry {
3154 const char *name;
3155 irq_handler_t handler;
3156 };
3157
3158 static const struct qla_init_msix_entry msix_entries[] = {
3159 { "qla2xxx (default)", qla24xx_msix_default },
3160 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3161 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3162 { "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q },
3163 };
3164
3165 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3166 { "qla2xxx (default)", qla82xx_msix_default },
3167 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3168 };
3169
3170 static int
3171 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3172 {
3173 int i, ret;
3174 struct qla_msix_entry *qentry;
3175 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3176 int min_vecs = QLA_BASE_VECTORS;
3177 struct irq_affinity desc = {
3178 .pre_vectors = QLA_BASE_VECTORS,
3179 };
3180
3181 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3182 desc.pre_vectors++;
3183 min_vecs++;
3184 }
3185
3186 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3187 ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3188 &desc);
3189
3190 if (ret < 0) {
3191 ql_log(ql_log_fatal, vha, 0x00c7,
3192 "MSI-X: Failed to enable support, "
3193 "giving up -- %d/%d.\n",
3194 ha->msix_count, ret);
3195 goto msix_out;
3196 } else if (ret < ha->msix_count) {
3197 ql_log(ql_log_warn, vha, 0x00c6,
3198 "MSI-X: Failed to enable support "
3199 "with %d vectors, using %d vectors.\n",
3200 ha->msix_count, ret);
3201 ha->msix_count = ret;
3202 /* Recalculate queue values */
3203 if (ha->mqiobase && ql2xmqsupport) {
3204 ha->max_req_queues = ha->msix_count - 1;
3205
3206 /* ATIOQ needs 1 vector. That's 1 less QPair */
3207 if (QLA_TGT_MODE_ENABLED())
3208 ha->max_req_queues--;
3209
3210 ha->max_rsp_queues = ha->max_req_queues;
3211
3212 ha->max_qpairs = ha->max_req_queues - 1;
3213 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3214 "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3215 }
3216 }
3217 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3218 ha->msix_count, GFP_KERNEL);
3219 if (!ha->msix_entries) {
3220 ql_log(ql_log_fatal, vha, 0x00c8,
3221 "Failed to allocate memory for ha->msix_entries.\n");
3222 ret = -ENOMEM;
3223 goto msix_out;
3224 }
3225 ha->flags.msix_enabled = 1;
3226
3227 for (i = 0; i < ha->msix_count; i++) {
3228 qentry = &ha->msix_entries[i];
3229 qentry->vector = pci_irq_vector(ha->pdev, i);
3230 qentry->entry = i;
3231 qentry->have_irq = 0;
3232 qentry->in_use = 0;
3233 qentry->handle = NULL;
3234 }
3235
3236 /* Enable MSI-X vectors for the base queue */
3237 for (i = 0; i < QLA_BASE_VECTORS; i++) {
3238 qentry = &ha->msix_entries[i];
3239 qentry->handle = rsp;
3240 rsp->msix = qentry;
3241 scnprintf(qentry->name, sizeof(qentry->name),
3242 "%s", msix_entries[i].name);
3243 if (IS_P3P_TYPE(ha))
3244 ret = request_irq(qentry->vector,
3245 qla82xx_msix_entries[i].handler,
3246 0, qla82xx_msix_entries[i].name, rsp);
3247 else
3248 ret = request_irq(qentry->vector,
3249 msix_entries[i].handler,
3250 0, msix_entries[i].name, rsp);
3251 if (ret)
3252 goto msix_register_fail;
3253 qentry->have_irq = 1;
3254 qentry->in_use = 1;
3255 }
3256
3257 /*
3258 * If target mode is enable, also request the vector for the ATIO
3259 * queue.
3260 */
3261 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3262 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3263 rsp->msix = qentry;
3264 qentry->handle = rsp;
3265 scnprintf(qentry->name, sizeof(qentry->name),
3266 "%s", msix_entries[QLA_ATIO_VECTOR].name);
3267 qentry->in_use = 1;
3268 ret = request_irq(qentry->vector,
3269 msix_entries[QLA_ATIO_VECTOR].handler,
3270 0, msix_entries[QLA_ATIO_VECTOR].name, rsp);
3271 qentry->have_irq = 1;
3272 }
3273
3274 msix_register_fail:
3275 if (ret) {
3276 ql_log(ql_log_fatal, vha, 0x00cb,
3277 "MSI-X: unable to register handler -- %x/%d.\n",
3278 qentry->vector, ret);
3279 qla2x00_free_irqs(vha);
3280 ha->mqenable = 0;
3281 goto msix_out;
3282 }
3283
3284 /* Enable MSI-X vector for response queue update for queue 0 */
3285 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3286 if (ha->msixbase && ha->mqiobase &&
3287 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3288 ql2xmqsupport))
3289 ha->mqenable = 1;
3290 } else
3291 if (ha->mqiobase &&
3292 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3293 ql2xmqsupport))
3294 ha->mqenable = 1;
3295 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3296 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3297 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3298 ql_dbg(ql_dbg_init, vha, 0x0055,
3299 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3300 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3301
3302 msix_out:
3303 return ret;
3304 }
3305
3306 int
3307 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3308 {
3309 int ret = QLA_FUNCTION_FAILED;
3310 device_reg_t *reg = ha->iobase;
3311 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3312
3313 /* If possible, enable MSI-X. */
3314 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3315 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3316 !IS_QLA27XX(ha))
3317 goto skip_msi;
3318
3319 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3320 (ha->pdev->subsystem_device == 0x7040 ||
3321 ha->pdev->subsystem_device == 0x7041 ||
3322 ha->pdev->subsystem_device == 0x1705)) {
3323 ql_log(ql_log_warn, vha, 0x0034,
3324 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3325 ha->pdev->subsystem_vendor,
3326 ha->pdev->subsystem_device);
3327 goto skip_msi;
3328 }
3329
3330 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3331 ql_log(ql_log_warn, vha, 0x0035,
3332 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3333 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3334 goto skip_msix;
3335 }
3336
3337 ret = qla24xx_enable_msix(ha, rsp);
3338 if (!ret) {
3339 ql_dbg(ql_dbg_init, vha, 0x0036,
3340 "MSI-X: Enabled (0x%X, 0x%X).\n",
3341 ha->chip_revision, ha->fw_attributes);
3342 goto clear_risc_ints;
3343 }
3344
3345 skip_msix:
3346
3347 ql_log(ql_log_info, vha, 0x0037,
3348 "Falling back-to MSI mode -%d.\n", ret);
3349
3350 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3351 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3352 !IS_QLA27XX(ha))
3353 goto skip_msi;
3354
3355 ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3356 if (!ret) {
3357 ql_dbg(ql_dbg_init, vha, 0x0038,
3358 "MSI: Enabled.\n");
3359 ha->flags.msi_enabled = 1;
3360 } else
3361 ql_log(ql_log_warn, vha, 0x0039,
3362 "Falling back-to INTa mode -- %d.\n", ret);
3363 skip_msi:
3364
3365 /* Skip INTx on ISP82xx. */
3366 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3367 return QLA_FUNCTION_FAILED;
3368
3369 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3370 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3371 QLA2XXX_DRIVER_NAME, rsp);
3372 if (ret) {
3373 ql_log(ql_log_warn, vha, 0x003a,
3374 "Failed to reserve interrupt %d already in use.\n",
3375 ha->pdev->irq);
3376 goto fail;
3377 } else if (!ha->flags.msi_enabled) {
3378 ql_dbg(ql_dbg_init, vha, 0x0125,
3379 "INTa mode: Enabled.\n");
3380 ha->flags.mr_intr_valid = 1;
3381 }
3382
3383 clear_risc_ints:
3384 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3385 goto fail;
3386
3387 spin_lock_irq(&ha->hardware_lock);
3388 WRT_REG_WORD(&reg->isp.semaphore, 0);
3389 spin_unlock_irq(&ha->hardware_lock);
3390
3391 fail:
3392 return ret;
3393 }
3394
3395 void
3396 qla2x00_free_irqs(scsi_qla_host_t *vha)
3397 {
3398 struct qla_hw_data *ha = vha->hw;
3399 struct rsp_que *rsp;
3400 struct qla_msix_entry *qentry;
3401 int i;
3402
3403 /*
3404 * We need to check that ha->rsp_q_map is valid in case we are called
3405 * from a probe failure context.
3406 */
3407 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3408 goto free_irqs;
3409 rsp = ha->rsp_q_map[0];
3410
3411 if (ha->flags.msix_enabled) {
3412 for (i = 0; i < ha->msix_count; i++) {
3413 qentry = &ha->msix_entries[i];
3414 if (qentry->have_irq) {
3415 irq_set_affinity_notifier(qentry->vector, NULL);
3416 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3417 }
3418 }
3419 kfree(ha->msix_entries);
3420 ha->msix_entries = NULL;
3421 ha->flags.msix_enabled = 0;
3422 ql_dbg(ql_dbg_init, vha, 0x0042,
3423 "Disabled MSI-X.\n");
3424 } else {
3425 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3426 }
3427
3428 free_irqs:
3429 pci_free_irq_vectors(ha->pdev);
3430 }
3431
3432 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3433 struct qla_msix_entry *msix, int vector_type)
3434 {
3435 const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3436 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3437 int ret;
3438
3439 scnprintf(msix->name, sizeof(msix->name),
3440 "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3441 ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3442 if (ret) {
3443 ql_log(ql_log_fatal, vha, 0x00e6,
3444 "MSI-X: Unable to register handler -- %x/%d.\n",
3445 msix->vector, ret);
3446 return ret;
3447 }
3448 msix->have_irq = 1;
3449 msix->handle = qpair;
3450 return ret;
3451 }
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