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