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6be2ab4f19a64511c7b70be680441ddb9a628685
[deliverable/linux.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 <scsi/scsi_tcq.h>
13 #include <scsi/scsi_bsg_fc.h>
14 #include <scsi/scsi_eh.h>
15
16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
20 sts_entry_t *);
21 static void qla_irq_affinity_notify(struct irq_affinity_notify *,
22 const cpumask_t *);
23 static void qla_irq_affinity_release(struct kref *);
24
25
26 /**
27 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
28 * @irq:
29 * @dev_id: SCSI driver HA context
30 *
31 * Called by system whenever the host adapter generates an interrupt.
32 *
33 * Returns handled flag.
34 */
35 irqreturn_t
36 qla2100_intr_handler(int irq, void *dev_id)
37 {
38 scsi_qla_host_t *vha;
39 struct qla_hw_data *ha;
40 struct device_reg_2xxx __iomem *reg;
41 int status;
42 unsigned long iter;
43 uint16_t hccr;
44 uint16_t mb[4];
45 struct rsp_que *rsp;
46 unsigned long flags;
47
48 rsp = (struct rsp_que *) dev_id;
49 if (!rsp) {
50 ql_log(ql_log_info, NULL, 0x505d,
51 "%s: NULL response queue pointer.\n", __func__);
52 return (IRQ_NONE);
53 }
54
55 ha = rsp->hw;
56 reg = &ha->iobase->isp;
57 status = 0;
58
59 spin_lock_irqsave(&ha->hardware_lock, flags);
60 vha = pci_get_drvdata(ha->pdev);
61 for (iter = 50; iter--; ) {
62 hccr = RD_REG_WORD(&reg->hccr);
63 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
64 break;
65 if (hccr & HCCR_RISC_PAUSE) {
66 if (pci_channel_offline(ha->pdev))
67 break;
68
69 /*
70 * Issue a "HARD" reset in order for the RISC interrupt
71 * bit to be cleared. Schedule a big hammer to get
72 * out of the RISC PAUSED state.
73 */
74 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
75 RD_REG_WORD(&reg->hccr);
76
77 ha->isp_ops->fw_dump(vha, 1);
78 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
79 break;
80 } else if ((RD_REG_WORD(&reg->istatus) & ISR_RISC_INT) == 0)
81 break;
82
83 if (RD_REG_WORD(&reg->semaphore) & BIT_0) {
84 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
85 RD_REG_WORD(&reg->hccr);
86
87 /* Get mailbox data. */
88 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
89 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
90 qla2x00_mbx_completion(vha, mb[0]);
91 status |= MBX_INTERRUPT;
92 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
93 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
94 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
95 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
96 qla2x00_async_event(vha, rsp, mb);
97 } else {
98 /*EMPTY*/
99 ql_dbg(ql_dbg_async, vha, 0x5025,
100 "Unrecognized interrupt type (%d).\n",
101 mb[0]);
102 }
103 /* Release mailbox registers. */
104 WRT_REG_WORD(&reg->semaphore, 0);
105 RD_REG_WORD(&reg->semaphore);
106 } else {
107 qla2x00_process_response_queue(rsp);
108
109 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
110 RD_REG_WORD(&reg->hccr);
111 }
112 }
113 qla2x00_handle_mbx_completion(ha, status);
114 spin_unlock_irqrestore(&ha->hardware_lock, flags);
115
116 return (IRQ_HANDLED);
117 }
118
119 bool
120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
121 {
122 /* Check for PCI disconnection */
123 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
124 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
125 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
126 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
127 /*
128 * Schedule this (only once) on the default system
129 * workqueue so that all the adapter workqueues and the
130 * DPC thread can be shutdown cleanly.
131 */
132 schedule_work(&vha->hw->board_disable);
133 }
134 return true;
135 } else
136 return false;
137 }
138
139 bool
140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
141 {
142 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
143 }
144
145 /**
146 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
147 * @irq:
148 * @dev_id: SCSI driver HA context
149 *
150 * Called by system whenever the host adapter generates an interrupt.
151 *
152 * Returns handled flag.
153 */
154 irqreturn_t
155 qla2300_intr_handler(int irq, void *dev_id)
156 {
157 scsi_qla_host_t *vha;
158 struct device_reg_2xxx __iomem *reg;
159 int status;
160 unsigned long iter;
161 uint32_t stat;
162 uint16_t hccr;
163 uint16_t mb[4];
164 struct rsp_que *rsp;
165 struct qla_hw_data *ha;
166 unsigned long flags;
167
168 rsp = (struct rsp_que *) dev_id;
169 if (!rsp) {
170 ql_log(ql_log_info, NULL, 0x5058,
171 "%s: NULL response queue pointer.\n", __func__);
172 return (IRQ_NONE);
173 }
174
175 ha = rsp->hw;
176 reg = &ha->iobase->isp;
177 status = 0;
178
179 spin_lock_irqsave(&ha->hardware_lock, flags);
180 vha = pci_get_drvdata(ha->pdev);
181 for (iter = 50; iter--; ) {
182 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
183 if (qla2x00_check_reg32_for_disconnect(vha, stat))
184 break;
185 if (stat & HSR_RISC_PAUSED) {
186 if (unlikely(pci_channel_offline(ha->pdev)))
187 break;
188
189 hccr = RD_REG_WORD(&reg->hccr);
190
191 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
192 ql_log(ql_log_warn, vha, 0x5026,
193 "Parity error -- HCCR=%x, Dumping "
194 "firmware.\n", hccr);
195 else
196 ql_log(ql_log_warn, vha, 0x5027,
197 "RISC paused -- HCCR=%x, Dumping "
198 "firmware.\n", hccr);
199
200 /*
201 * Issue a "HARD" reset in order for the RISC
202 * interrupt bit to be cleared. Schedule a big
203 * hammer to get out of the RISC PAUSED state.
204 */
205 WRT_REG_WORD(&reg->hccr, HCCR_RESET_RISC);
206 RD_REG_WORD(&reg->hccr);
207
208 ha->isp_ops->fw_dump(vha, 1);
209 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
210 break;
211 } else if ((stat & HSR_RISC_INT) == 0)
212 break;
213
214 switch (stat & 0xff) {
215 case 0x1:
216 case 0x2:
217 case 0x10:
218 case 0x11:
219 qla2x00_mbx_completion(vha, MSW(stat));
220 status |= MBX_INTERRUPT;
221
222 /* Release mailbox registers. */
223 WRT_REG_WORD(&reg->semaphore, 0);
224 break;
225 case 0x12:
226 mb[0] = MSW(stat);
227 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
228 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
229 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
230 qla2x00_async_event(vha, rsp, mb);
231 break;
232 case 0x13:
233 qla2x00_process_response_queue(rsp);
234 break;
235 case 0x15:
236 mb[0] = MBA_CMPLT_1_16BIT;
237 mb[1] = MSW(stat);
238 qla2x00_async_event(vha, rsp, mb);
239 break;
240 case 0x16:
241 mb[0] = MBA_SCSI_COMPLETION;
242 mb[1] = MSW(stat);
243 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
244 qla2x00_async_event(vha, rsp, mb);
245 break;
246 default:
247 ql_dbg(ql_dbg_async, vha, 0x5028,
248 "Unrecognized interrupt type (%d).\n", stat & 0xff);
249 break;
250 }
251 WRT_REG_WORD(&reg->hccr, HCCR_CLR_RISC_INT);
252 RD_REG_WORD_RELAXED(&reg->hccr);
253 }
254 qla2x00_handle_mbx_completion(ha, status);
255 spin_unlock_irqrestore(&ha->hardware_lock, flags);
256
257 return (IRQ_HANDLED);
258 }
259
260 /**
261 * qla2x00_mbx_completion() - Process mailbox command completions.
262 * @ha: SCSI driver HA context
263 * @mb0: Mailbox0 register
264 */
265 static void
266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
267 {
268 uint16_t cnt;
269 uint32_t mboxes;
270 uint16_t __iomem *wptr;
271 struct qla_hw_data *ha = vha->hw;
272 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
273
274 /* Read all mbox registers? */
275 mboxes = (1 << ha->mbx_count) - 1;
276 if (!ha->mcp)
277 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
278 else
279 mboxes = ha->mcp->in_mb;
280
281 /* Load return mailbox registers. */
282 ha->flags.mbox_int = 1;
283 ha->mailbox_out[0] = mb0;
284 mboxes >>= 1;
285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
286
287 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
288 if (IS_QLA2200(ha) && cnt == 8)
289 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
290 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
291 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
292 else if (mboxes & BIT_0)
293 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
294
295 wptr++;
296 mboxes >>= 1;
297 }
298 }
299
300 static void
301 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
302 {
303 static char *event[] =
304 { "Complete", "Request Notification", "Time Extension" };
305 int rval;
306 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
307 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
308 uint16_t __iomem *wptr;
309 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
310
311 /* Seed data -- mailbox1 -> mailbox7. */
312 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
313 wptr = (uint16_t __iomem *)&reg24->mailbox1;
314 else if (IS_QLA8044(vha->hw))
315 wptr = (uint16_t __iomem *)&reg82->mailbox_out[1];
316 else
317 return;
318
319 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
320 mb[cnt] = RD_REG_WORD(wptr);
321
322 ql_dbg(ql_dbg_async, vha, 0x5021,
323 "Inter-Driver Communication %s -- "
324 "%04x %04x %04x %04x %04x %04x %04x.\n",
325 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
326 mb[4], mb[5], mb[6]);
327 switch (aen) {
328 /* Handle IDC Error completion case. */
329 case MBA_IDC_COMPLETE:
330 if (mb[1] >> 15) {
331 vha->hw->flags.idc_compl_status = 1;
332 if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
333 complete(&vha->hw->dcbx_comp);
334 }
335 break;
336
337 case MBA_IDC_NOTIFY:
338 /* Acknowledgement needed? [Notify && non-zero timeout]. */
339 timeout = (descr >> 8) & 0xf;
340 ql_dbg(ql_dbg_async, vha, 0x5022,
341 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
342 vha->host_no, event[aen & 0xff], timeout);
343
344 if (!timeout)
345 return;
346 rval = qla2x00_post_idc_ack_work(vha, mb);
347 if (rval != QLA_SUCCESS)
348 ql_log(ql_log_warn, vha, 0x5023,
349 "IDC failed to post ACK.\n");
350 break;
351 case MBA_IDC_TIME_EXT:
352 vha->hw->idc_extend_tmo = descr;
353 ql_dbg(ql_dbg_async, vha, 0x5087,
354 "%lu Inter-Driver Communication %s -- "
355 "Extend timeout by=%d.\n",
356 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
357 break;
358 }
359 }
360
361 #define LS_UNKNOWN 2
362 const char *
363 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
364 {
365 static const char *const link_speeds[] = {
366 "1", "2", "?", "4", "8", "16", "32", "10"
367 };
368 #define QLA_LAST_SPEED 7
369
370 if (IS_QLA2100(ha) || IS_QLA2200(ha))
371 return link_speeds[0];
372 else if (speed == 0x13)
373 return link_speeds[QLA_LAST_SPEED];
374 else if (speed < QLA_LAST_SPEED)
375 return link_speeds[speed];
376 else
377 return link_speeds[LS_UNKNOWN];
378 }
379
380 static void
381 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
382 {
383 struct qla_hw_data *ha = vha->hw;
384
385 /*
386 * 8200 AEN Interpretation:
387 * mb[0] = AEN code
388 * mb[1] = AEN Reason code
389 * mb[2] = LSW of Peg-Halt Status-1 Register
390 * mb[6] = MSW of Peg-Halt Status-1 Register
391 * mb[3] = LSW of Peg-Halt Status-2 register
392 * mb[7] = MSW of Peg-Halt Status-2 register
393 * mb[4] = IDC Device-State Register value
394 * mb[5] = IDC Driver-Presence Register value
395 */
396 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
397 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
398 mb[0], mb[1], mb[2], mb[6]);
399 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
400 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
401 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
402
403 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
404 IDC_HEARTBEAT_FAILURE)) {
405 ha->flags.nic_core_hung = 1;
406 ql_log(ql_log_warn, vha, 0x5060,
407 "83XX: F/W Error Reported: Check if reset required.\n");
408
409 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
410 uint32_t protocol_engine_id, fw_err_code, err_level;
411
412 /*
413 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
414 * - PEG-Halt Status-1 Register:
415 * (LSW = mb[2], MSW = mb[6])
416 * Bits 0-7 = protocol-engine ID
417 * Bits 8-28 = f/w error code
418 * Bits 29-31 = Error-level
419 * Error-level 0x1 = Non-Fatal error
420 * Error-level 0x2 = Recoverable Fatal error
421 * Error-level 0x4 = UnRecoverable Fatal error
422 * - PEG-Halt Status-2 Register:
423 * (LSW = mb[3], MSW = mb[7])
424 */
425 protocol_engine_id = (mb[2] & 0xff);
426 fw_err_code = (((mb[2] & 0xff00) >> 8) |
427 ((mb[6] & 0x1fff) << 8));
428 err_level = ((mb[6] & 0xe000) >> 13);
429 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
430 "Register: protocol_engine_id=0x%x "
431 "fw_err_code=0x%x err_level=0x%x.\n",
432 protocol_engine_id, fw_err_code, err_level);
433 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
434 "Register: 0x%x%x.\n", mb[7], mb[3]);
435 if (err_level == ERR_LEVEL_NON_FATAL) {
436 ql_log(ql_log_warn, vha, 0x5063,
437 "Not a fatal error, f/w has recovered "
438 "iteself.\n");
439 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
440 ql_log(ql_log_fatal, vha, 0x5064,
441 "Recoverable Fatal error: Chip reset "
442 "required.\n");
443 qla83xx_schedule_work(vha,
444 QLA83XX_NIC_CORE_RESET);
445 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
446 ql_log(ql_log_fatal, vha, 0x5065,
447 "Unrecoverable Fatal error: Set FAILED "
448 "state, reboot required.\n");
449 qla83xx_schedule_work(vha,
450 QLA83XX_NIC_CORE_UNRECOVERABLE);
451 }
452 }
453
454 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
455 uint16_t peg_fw_state, nw_interface_link_up;
456 uint16_t nw_interface_signal_detect, sfp_status;
457 uint16_t htbt_counter, htbt_monitor_enable;
458 uint16_t sfp_additonal_info, sfp_multirate;
459 uint16_t sfp_tx_fault, link_speed, dcbx_status;
460
461 /*
462 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
463 * - PEG-to-FC Status Register:
464 * (LSW = mb[2], MSW = mb[6])
465 * Bits 0-7 = Peg-Firmware state
466 * Bit 8 = N/W Interface Link-up
467 * Bit 9 = N/W Interface signal detected
468 * Bits 10-11 = SFP Status
469 * SFP Status 0x0 = SFP+ transceiver not expected
470 * SFP Status 0x1 = SFP+ transceiver not present
471 * SFP Status 0x2 = SFP+ transceiver invalid
472 * SFP Status 0x3 = SFP+ transceiver present and
473 * valid
474 * Bits 12-14 = Heartbeat Counter
475 * Bit 15 = Heartbeat Monitor Enable
476 * Bits 16-17 = SFP Additional Info
477 * SFP info 0x0 = Unregocnized transceiver for
478 * Ethernet
479 * SFP info 0x1 = SFP+ brand validation failed
480 * SFP info 0x2 = SFP+ speed validation failed
481 * SFP info 0x3 = SFP+ access error
482 * Bit 18 = SFP Multirate
483 * Bit 19 = SFP Tx Fault
484 * Bits 20-22 = Link Speed
485 * Bits 23-27 = Reserved
486 * Bits 28-30 = DCBX Status
487 * DCBX Status 0x0 = DCBX Disabled
488 * DCBX Status 0x1 = DCBX Enabled
489 * DCBX Status 0x2 = DCBX Exchange error
490 * Bit 31 = Reserved
491 */
492 peg_fw_state = (mb[2] & 0x00ff);
493 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
494 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
495 sfp_status = ((mb[2] & 0x0c00) >> 10);
496 htbt_counter = ((mb[2] & 0x7000) >> 12);
497 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
498 sfp_additonal_info = (mb[6] & 0x0003);
499 sfp_multirate = ((mb[6] & 0x0004) >> 2);
500 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
501 link_speed = ((mb[6] & 0x0070) >> 4);
502 dcbx_status = ((mb[6] & 0x7000) >> 12);
503
504 ql_log(ql_log_warn, vha, 0x5066,
505 "Peg-to-Fc Status Register:\n"
506 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
507 "nw_interface_signal_detect=0x%x"
508 "\nsfp_statis=0x%x.\n ", peg_fw_state,
509 nw_interface_link_up, nw_interface_signal_detect,
510 sfp_status);
511 ql_log(ql_log_warn, vha, 0x5067,
512 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
513 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ",
514 htbt_counter, htbt_monitor_enable,
515 sfp_additonal_info, sfp_multirate);
516 ql_log(ql_log_warn, vha, 0x5068,
517 "sfp_tx_fault=0x%x, link_state=0x%x, "
518 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
519 dcbx_status);
520
521 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
522 }
523
524 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
525 ql_log(ql_log_warn, vha, 0x5069,
526 "Heartbeat Failure encountered, chip reset "
527 "required.\n");
528
529 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
530 }
531 }
532
533 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
534 ql_log(ql_log_info, vha, 0x506a,
535 "IDC Device-State changed = 0x%x.\n", mb[4]);
536 if (ha->flags.nic_core_reset_owner)
537 return;
538 qla83xx_schedule_work(vha, MBA_IDC_AEN);
539 }
540 }
541
542 int
543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
544 {
545 struct qla_hw_data *ha = vha->hw;
546 scsi_qla_host_t *vp;
547 uint32_t vp_did;
548 unsigned long flags;
549 int ret = 0;
550
551 if (!ha->num_vhosts)
552 return ret;
553
554 spin_lock_irqsave(&ha->vport_slock, flags);
555 list_for_each_entry(vp, &ha->vp_list, list) {
556 vp_did = vp->d_id.b24;
557 if (vp_did == rscn_entry) {
558 ret = 1;
559 break;
560 }
561 }
562 spin_unlock_irqrestore(&ha->vport_slock, flags);
563
564 return ret;
565 }
566
567 static inline fc_port_t *
568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
569 {
570 fc_port_t *fcport;
571
572 list_for_each_entry(fcport, &vha->vp_fcports, list)
573 if (fcport->loop_id == loop_id)
574 return fcport;
575 return NULL;
576 }
577
578 /**
579 * qla2x00_async_event() - Process aynchronous events.
580 * @ha: SCSI driver HA context
581 * @mb: Mailbox registers (0 - 3)
582 */
583 void
584 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
585 {
586 uint16_t handle_cnt;
587 uint16_t cnt, mbx;
588 uint32_t handles[5];
589 struct qla_hw_data *ha = vha->hw;
590 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
591 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
592 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
593 uint32_t rscn_entry, host_pid;
594 unsigned long flags;
595 fc_port_t *fcport = NULL;
596
597 /* Setup to process RIO completion. */
598 handle_cnt = 0;
599 if (IS_CNA_CAPABLE(ha))
600 goto skip_rio;
601 switch (mb[0]) {
602 case MBA_SCSI_COMPLETION:
603 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
604 handle_cnt = 1;
605 break;
606 case MBA_CMPLT_1_16BIT:
607 handles[0] = mb[1];
608 handle_cnt = 1;
609 mb[0] = MBA_SCSI_COMPLETION;
610 break;
611 case MBA_CMPLT_2_16BIT:
612 handles[0] = mb[1];
613 handles[1] = mb[2];
614 handle_cnt = 2;
615 mb[0] = MBA_SCSI_COMPLETION;
616 break;
617 case MBA_CMPLT_3_16BIT:
618 handles[0] = mb[1];
619 handles[1] = mb[2];
620 handles[2] = mb[3];
621 handle_cnt = 3;
622 mb[0] = MBA_SCSI_COMPLETION;
623 break;
624 case MBA_CMPLT_4_16BIT:
625 handles[0] = mb[1];
626 handles[1] = mb[2];
627 handles[2] = mb[3];
628 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
629 handle_cnt = 4;
630 mb[0] = MBA_SCSI_COMPLETION;
631 break;
632 case MBA_CMPLT_5_16BIT:
633 handles[0] = mb[1];
634 handles[1] = mb[2];
635 handles[2] = mb[3];
636 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
637 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
638 handle_cnt = 5;
639 mb[0] = MBA_SCSI_COMPLETION;
640 break;
641 case MBA_CMPLT_2_32BIT:
642 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
643 handles[1] = le32_to_cpu(
644 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
645 RD_MAILBOX_REG(ha, reg, 6));
646 handle_cnt = 2;
647 mb[0] = MBA_SCSI_COMPLETION;
648 break;
649 default:
650 break;
651 }
652 skip_rio:
653 switch (mb[0]) {
654 case MBA_SCSI_COMPLETION: /* Fast Post */
655 if (!vha->flags.online)
656 break;
657
658 for (cnt = 0; cnt < handle_cnt; cnt++)
659 qla2x00_process_completed_request(vha, rsp->req,
660 handles[cnt]);
661 break;
662
663 case MBA_RESET: /* Reset */
664 ql_dbg(ql_dbg_async, vha, 0x5002,
665 "Asynchronous RESET.\n");
666
667 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
668 break;
669
670 case MBA_SYSTEM_ERR: /* System Error */
671 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ?
672 RD_REG_WORD(&reg24->mailbox7) : 0;
673 ql_log(ql_log_warn, vha, 0x5003,
674 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
675 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
676
677 ha->isp_ops->fw_dump(vha, 1);
678
679 if (IS_FWI2_CAPABLE(ha)) {
680 if (mb[1] == 0 && mb[2] == 0) {
681 ql_log(ql_log_fatal, vha, 0x5004,
682 "Unrecoverable Hardware Error: adapter "
683 "marked OFFLINE!\n");
684 vha->flags.online = 0;
685 vha->device_flags |= DFLG_DEV_FAILED;
686 } else {
687 /* Check to see if MPI timeout occurred */
688 if ((mbx & MBX_3) && (ha->port_no == 0))
689 set_bit(MPI_RESET_NEEDED,
690 &vha->dpc_flags);
691
692 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
693 }
694 } else if (mb[1] == 0) {
695 ql_log(ql_log_fatal, vha, 0x5005,
696 "Unrecoverable Hardware Error: adapter marked "
697 "OFFLINE!\n");
698 vha->flags.online = 0;
699 vha->device_flags |= DFLG_DEV_FAILED;
700 } else
701 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
702 break;
703
704 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
705 ql_log(ql_log_warn, vha, 0x5006,
706 "ISP Request Transfer Error (%x).\n", mb[1]);
707
708 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
709 break;
710
711 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
712 ql_log(ql_log_warn, vha, 0x5007,
713 "ISP Response Transfer Error (%x).\n", mb[1]);
714
715 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
716 break;
717
718 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
719 ql_dbg(ql_dbg_async, vha, 0x5008,
720 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
721 break;
722
723 case MBA_LOOP_INIT_ERR:
724 ql_log(ql_log_warn, vha, 0x507b,
725 "LOOP INIT ERROR (%x).\n", mb[1]);
726 ha->isp_ops->fw_dump(vha, 1);
727 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
728 break;
729
730 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
731 ql_dbg(ql_dbg_async, vha, 0x5009,
732 "LIP occurred (%x).\n", mb[1]);
733
734 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
735 atomic_set(&vha->loop_state, LOOP_DOWN);
736 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
737 qla2x00_mark_all_devices_lost(vha, 1);
738 }
739
740 if (vha->vp_idx) {
741 atomic_set(&vha->vp_state, VP_FAILED);
742 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
743 }
744
745 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
746 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
747
748 vha->flags.management_server_logged_in = 0;
749 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
750 break;
751
752 case MBA_LOOP_UP: /* Loop Up Event */
753 if (IS_QLA2100(ha) || IS_QLA2200(ha))
754 ha->link_data_rate = PORT_SPEED_1GB;
755 else
756 ha->link_data_rate = mb[1];
757
758 ql_log(ql_log_info, vha, 0x500a,
759 "LOOP UP detected (%s Gbps).\n",
760 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
761
762 vha->flags.management_server_logged_in = 0;
763 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
764 break;
765
766 case MBA_LOOP_DOWN: /* Loop Down Event */
767 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
768 ? RD_REG_WORD(&reg24->mailbox4) : 0;
769 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
770 : mbx;
771 ql_log(ql_log_info, vha, 0x500b,
772 "LOOP DOWN detected (%x %x %x %x).\n",
773 mb[1], mb[2], mb[3], mbx);
774
775 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
776 atomic_set(&vha->loop_state, LOOP_DOWN);
777 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
778 /*
779 * In case of loop down, restore WWPN from
780 * NVRAM in case of FA-WWPN capable ISP
781 * Restore for Physical Port only
782 */
783 if (!vha->vp_idx) {
784 if (ha->flags.fawwpn_enabled) {
785 void *wwpn = ha->init_cb->port_name;
786 memcpy(vha->port_name, wwpn, WWN_SIZE);
787 fc_host_port_name(vha->host) =
788 wwn_to_u64(vha->port_name);
789 ql_dbg(ql_dbg_init + ql_dbg_verbose,
790 vha, 0x0144, "LOOP DOWN detected,"
791 "restore WWPN %016llx\n",
792 wwn_to_u64(vha->port_name));
793 }
794
795 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
796 }
797
798 vha->device_flags |= DFLG_NO_CABLE;
799 qla2x00_mark_all_devices_lost(vha, 1);
800 }
801
802 if (vha->vp_idx) {
803 atomic_set(&vha->vp_state, VP_FAILED);
804 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
805 }
806
807 vha->flags.management_server_logged_in = 0;
808 ha->link_data_rate = PORT_SPEED_UNKNOWN;
809 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
810 break;
811
812 case MBA_LIP_RESET: /* LIP reset occurred */
813 ql_dbg(ql_dbg_async, vha, 0x500c,
814 "LIP reset occurred (%x).\n", mb[1]);
815
816 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
817 atomic_set(&vha->loop_state, LOOP_DOWN);
818 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
819 qla2x00_mark_all_devices_lost(vha, 1);
820 }
821
822 if (vha->vp_idx) {
823 atomic_set(&vha->vp_state, VP_FAILED);
824 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
825 }
826
827 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
828
829 ha->operating_mode = LOOP;
830 vha->flags.management_server_logged_in = 0;
831 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
832 break;
833
834 /* case MBA_DCBX_COMPLETE: */
835 case MBA_POINT_TO_POINT: /* Point-to-Point */
836 if (IS_QLA2100(ha))
837 break;
838
839 if (IS_CNA_CAPABLE(ha)) {
840 ql_dbg(ql_dbg_async, vha, 0x500d,
841 "DCBX Completed -- %04x %04x %04x.\n",
842 mb[1], mb[2], mb[3]);
843 if (ha->notify_dcbx_comp && !vha->vp_idx)
844 complete(&ha->dcbx_comp);
845
846 } else
847 ql_dbg(ql_dbg_async, vha, 0x500e,
848 "Asynchronous P2P MODE received.\n");
849
850 /*
851 * Until there's a transition from loop down to loop up, treat
852 * this as loop down only.
853 */
854 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
855 atomic_set(&vha->loop_state, LOOP_DOWN);
856 if (!atomic_read(&vha->loop_down_timer))
857 atomic_set(&vha->loop_down_timer,
858 LOOP_DOWN_TIME);
859 qla2x00_mark_all_devices_lost(vha, 1);
860 }
861
862 if (vha->vp_idx) {
863 atomic_set(&vha->vp_state, VP_FAILED);
864 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
865 }
866
867 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
868 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
869
870 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
871 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
872
873 ha->flags.gpsc_supported = 1;
874 vha->flags.management_server_logged_in = 0;
875 break;
876
877 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
878 if (IS_QLA2100(ha))
879 break;
880
881 ql_dbg(ql_dbg_async, vha, 0x500f,
882 "Configuration change detected: value=%x.\n", mb[1]);
883
884 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
885 atomic_set(&vha->loop_state, LOOP_DOWN);
886 if (!atomic_read(&vha->loop_down_timer))
887 atomic_set(&vha->loop_down_timer,
888 LOOP_DOWN_TIME);
889 qla2x00_mark_all_devices_lost(vha, 1);
890 }
891
892 if (vha->vp_idx) {
893 atomic_set(&vha->vp_state, VP_FAILED);
894 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
895 }
896
897 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
898 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
899 break;
900
901 case MBA_PORT_UPDATE: /* Port database update */
902 /*
903 * Handle only global and vn-port update events
904 *
905 * Relevant inputs:
906 * mb[1] = N_Port handle of changed port
907 * OR 0xffff for global event
908 * mb[2] = New login state
909 * 7 = Port logged out
910 * mb[3] = LSB is vp_idx, 0xff = all vps
911 *
912 * Skip processing if:
913 * Event is global, vp_idx is NOT all vps,
914 * vp_idx does not match
915 * Event is not global, vp_idx does not match
916 */
917 if (IS_QLA2XXX_MIDTYPE(ha) &&
918 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
919 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
920 break;
921
922 if (mb[2] == 0x7) {
923 ql_dbg(ql_dbg_async, vha, 0x5010,
924 "Port %s %04x %04x %04x.\n",
925 mb[1] == 0xffff ? "unavailable" : "logout",
926 mb[1], mb[2], mb[3]);
927
928 if (mb[1] == 0xffff)
929 goto global_port_update;
930
931 /* Port logout */
932 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
933 if (!fcport)
934 break;
935 if (atomic_read(&fcport->state) != FCS_ONLINE)
936 break;
937 ql_dbg(ql_dbg_async, vha, 0x508a,
938 "Marking port lost loopid=%04x portid=%06x.\n",
939 fcport->loop_id, fcport->d_id.b24);
940 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
941 break;
942
943 global_port_update:
944 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
945 atomic_set(&vha->loop_state, LOOP_DOWN);
946 atomic_set(&vha->loop_down_timer,
947 LOOP_DOWN_TIME);
948 vha->device_flags |= DFLG_NO_CABLE;
949 qla2x00_mark_all_devices_lost(vha, 1);
950 }
951
952 if (vha->vp_idx) {
953 atomic_set(&vha->vp_state, VP_FAILED);
954 fc_vport_set_state(vha->fc_vport,
955 FC_VPORT_FAILED);
956 qla2x00_mark_all_devices_lost(vha, 1);
957 }
958
959 vha->flags.management_server_logged_in = 0;
960 ha->link_data_rate = PORT_SPEED_UNKNOWN;
961 break;
962 }
963
964 /*
965 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
966 * event etc. earlier indicating loop is down) then process
967 * it. Otherwise ignore it and Wait for RSCN to come in.
968 */
969 atomic_set(&vha->loop_down_timer, 0);
970 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
971 atomic_read(&vha->loop_state) != LOOP_DEAD) {
972 ql_dbg(ql_dbg_async, vha, 0x5011,
973 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
974 mb[1], mb[2], mb[3]);
975
976 qlt_async_event(mb[0], vha, mb);
977 break;
978 }
979
980 ql_dbg(ql_dbg_async, vha, 0x5012,
981 "Port database changed %04x %04x %04x.\n",
982 mb[1], mb[2], mb[3]);
983
984 /*
985 * Mark all devices as missing so we will login again.
986 */
987 atomic_set(&vha->loop_state, LOOP_UP);
988
989 qla2x00_mark_all_devices_lost(vha, 1);
990
991 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
992 set_bit(SCR_PENDING, &vha->dpc_flags);
993
994 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
995 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
996 set_bit(VP_CONFIG_OK, &vha->vp_flags);
997
998 qlt_async_event(mb[0], vha, mb);
999 break;
1000
1001 case MBA_RSCN_UPDATE: /* State Change Registration */
1002 /* Check if the Vport has issued a SCR */
1003 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1004 break;
1005 /* Only handle SCNs for our Vport index. */
1006 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1007 break;
1008
1009 ql_dbg(ql_dbg_async, vha, 0x5013,
1010 "RSCN database changed -- %04x %04x %04x.\n",
1011 mb[1], mb[2], mb[3]);
1012
1013 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1014 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1015 | vha->d_id.b.al_pa;
1016 if (rscn_entry == host_pid) {
1017 ql_dbg(ql_dbg_async, vha, 0x5014,
1018 "Ignoring RSCN update to local host "
1019 "port ID (%06x).\n", host_pid);
1020 break;
1021 }
1022
1023 /* Ignore reserved bits from RSCN-payload. */
1024 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1025
1026 /* Skip RSCNs for virtual ports on the same physical port */
1027 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1028 break;
1029
1030 /*
1031 * Search for the rport related to this RSCN entry and mark it
1032 * as lost.
1033 */
1034 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1035 if (atomic_read(&fcport->state) != FCS_ONLINE)
1036 continue;
1037 if (fcport->d_id.b24 == rscn_entry) {
1038 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1039 break;
1040 }
1041 }
1042
1043 atomic_set(&vha->loop_down_timer, 0);
1044 vha->flags.management_server_logged_in = 0;
1045
1046 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1047 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1048 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1049 break;
1050
1051 /* case MBA_RIO_RESPONSE: */
1052 case MBA_ZIO_RESPONSE:
1053 ql_dbg(ql_dbg_async, vha, 0x5015,
1054 "[R|Z]IO update completion.\n");
1055
1056 if (IS_FWI2_CAPABLE(ha))
1057 qla24xx_process_response_queue(vha, rsp);
1058 else
1059 qla2x00_process_response_queue(rsp);
1060 break;
1061
1062 case MBA_DISCARD_RND_FRAME:
1063 ql_dbg(ql_dbg_async, vha, 0x5016,
1064 "Discard RND Frame -- %04x %04x %04x.\n",
1065 mb[1], mb[2], mb[3]);
1066 break;
1067
1068 case MBA_TRACE_NOTIFICATION:
1069 ql_dbg(ql_dbg_async, vha, 0x5017,
1070 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1071 break;
1072
1073 case MBA_ISP84XX_ALERT:
1074 ql_dbg(ql_dbg_async, vha, 0x5018,
1075 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1076 mb[1], mb[2], mb[3]);
1077
1078 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1079 switch (mb[1]) {
1080 case A84_PANIC_RECOVERY:
1081 ql_log(ql_log_info, vha, 0x5019,
1082 "Alert 84XX: panic recovery %04x %04x.\n",
1083 mb[2], mb[3]);
1084 break;
1085 case A84_OP_LOGIN_COMPLETE:
1086 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1087 ql_log(ql_log_info, vha, 0x501a,
1088 "Alert 84XX: firmware version %x.\n",
1089 ha->cs84xx->op_fw_version);
1090 break;
1091 case A84_DIAG_LOGIN_COMPLETE:
1092 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1093 ql_log(ql_log_info, vha, 0x501b,
1094 "Alert 84XX: diagnostic firmware version %x.\n",
1095 ha->cs84xx->diag_fw_version);
1096 break;
1097 case A84_GOLD_LOGIN_COMPLETE:
1098 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1099 ha->cs84xx->fw_update = 1;
1100 ql_log(ql_log_info, vha, 0x501c,
1101 "Alert 84XX: gold firmware version %x.\n",
1102 ha->cs84xx->gold_fw_version);
1103 break;
1104 default:
1105 ql_log(ql_log_warn, vha, 0x501d,
1106 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1107 mb[1], mb[2], mb[3]);
1108 }
1109 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1110 break;
1111 case MBA_DCBX_START:
1112 ql_dbg(ql_dbg_async, vha, 0x501e,
1113 "DCBX Started -- %04x %04x %04x.\n",
1114 mb[1], mb[2], mb[3]);
1115 break;
1116 case MBA_DCBX_PARAM_UPDATE:
1117 ql_dbg(ql_dbg_async, vha, 0x501f,
1118 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1119 mb[1], mb[2], mb[3]);
1120 break;
1121 case MBA_FCF_CONF_ERR:
1122 ql_dbg(ql_dbg_async, vha, 0x5020,
1123 "FCF Configuration Error -- %04x %04x %04x.\n",
1124 mb[1], mb[2], mb[3]);
1125 break;
1126 case MBA_IDC_NOTIFY:
1127 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1128 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1129 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1130 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1131 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1132 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1133 /*
1134 * Extend loop down timer since port is active.
1135 */
1136 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1137 atomic_set(&vha->loop_down_timer,
1138 LOOP_DOWN_TIME);
1139 qla2xxx_wake_dpc(vha);
1140 }
1141 }
1142 case MBA_IDC_COMPLETE:
1143 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1144 complete(&ha->lb_portup_comp);
1145 /* Fallthru */
1146 case MBA_IDC_TIME_EXT:
1147 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1148 IS_QLA8044(ha))
1149 qla81xx_idc_event(vha, mb[0], mb[1]);
1150 break;
1151
1152 case MBA_IDC_AEN:
1153 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1154 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1155 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1156 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1157 qla83xx_handle_8200_aen(vha, mb);
1158 break;
1159
1160 case MBA_DPORT_DIAGNOSTICS:
1161 ql_dbg(ql_dbg_async, vha, 0x5052,
1162 "D-Port Diagnostics: %04x result=%s index=%u size=%u\n",
1163 mb[0],
1164 mb[1] == 0 ? "start" :
1165 mb[1] == 1 ? "done (ok)" :
1166 mb[1] == 2 ? "done (error)" : "other",
1167 LSB(mb[2]),
1168 mb[3]);
1169 break;
1170
1171 case MBA_TEMPERATURE_ALERT:
1172 ql_dbg(ql_dbg_async, vha, 0x505e,
1173 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1174 if (mb[1] == 0x12)
1175 schedule_work(&ha->board_disable);
1176 break;
1177
1178 default:
1179 ql_dbg(ql_dbg_async, vha, 0x5057,
1180 "Unknown AEN:%04x %04x %04x %04x\n",
1181 mb[0], mb[1], mb[2], mb[3]);
1182 }
1183
1184 qlt_async_event(mb[0], vha, mb);
1185
1186 if (!vha->vp_idx && ha->num_vhosts)
1187 qla2x00_alert_all_vps(rsp, mb);
1188 }
1189
1190 /**
1191 * qla2x00_process_completed_request() - Process a Fast Post response.
1192 * @ha: SCSI driver HA context
1193 * @index: SRB index
1194 */
1195 void
1196 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1197 struct req_que *req, uint32_t index)
1198 {
1199 srb_t *sp;
1200 struct qla_hw_data *ha = vha->hw;
1201
1202 /* Validate handle. */
1203 if (index >= req->num_outstanding_cmds) {
1204 ql_log(ql_log_warn, vha, 0x3014,
1205 "Invalid SCSI command index (%x).\n", index);
1206
1207 if (IS_P3P_TYPE(ha))
1208 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1209 else
1210 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1211 return;
1212 }
1213
1214 sp = req->outstanding_cmds[index];
1215 if (sp) {
1216 /* Free outstanding command slot. */
1217 req->outstanding_cmds[index] = NULL;
1218
1219 /* Save ISP completion status */
1220 sp->done(ha, sp, DID_OK << 16);
1221 } else {
1222 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1223
1224 if (IS_P3P_TYPE(ha))
1225 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1226 else
1227 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1228 }
1229 }
1230
1231 srb_t *
1232 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1233 struct req_que *req, void *iocb)
1234 {
1235 struct qla_hw_data *ha = vha->hw;
1236 sts_entry_t *pkt = iocb;
1237 srb_t *sp = NULL;
1238 uint16_t index;
1239
1240 index = LSW(pkt->handle);
1241 if (index >= req->num_outstanding_cmds) {
1242 ql_log(ql_log_warn, vha, 0x5031,
1243 "Invalid command index (%x).\n", index);
1244 if (IS_P3P_TYPE(ha))
1245 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1246 else
1247 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1248 goto done;
1249 }
1250 sp = req->outstanding_cmds[index];
1251 if (!sp) {
1252 ql_log(ql_log_warn, vha, 0x5032,
1253 "Invalid completion handle (%x) -- timed-out.\n", index);
1254 return sp;
1255 }
1256 if (sp->handle != index) {
1257 ql_log(ql_log_warn, vha, 0x5033,
1258 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1259 return NULL;
1260 }
1261
1262 req->outstanding_cmds[index] = NULL;
1263
1264 done:
1265 return sp;
1266 }
1267
1268 static void
1269 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1270 struct mbx_entry *mbx)
1271 {
1272 const char func[] = "MBX-IOCB";
1273 const char *type;
1274 fc_port_t *fcport;
1275 srb_t *sp;
1276 struct srb_iocb *lio;
1277 uint16_t *data;
1278 uint16_t status;
1279
1280 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1281 if (!sp)
1282 return;
1283
1284 lio = &sp->u.iocb_cmd;
1285 type = sp->name;
1286 fcport = sp->fcport;
1287 data = lio->u.logio.data;
1288
1289 data[0] = MBS_COMMAND_ERROR;
1290 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1291 QLA_LOGIO_LOGIN_RETRIED : 0;
1292 if (mbx->entry_status) {
1293 ql_dbg(ql_dbg_async, vha, 0x5043,
1294 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1295 "entry-status=%x status=%x state-flag=%x "
1296 "status-flags=%x.\n", type, sp->handle,
1297 fcport->d_id.b.domain, fcport->d_id.b.area,
1298 fcport->d_id.b.al_pa, mbx->entry_status,
1299 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1300 le16_to_cpu(mbx->status_flags));
1301
1302 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1303 (uint8_t *)mbx, sizeof(*mbx));
1304
1305 goto logio_done;
1306 }
1307
1308 status = le16_to_cpu(mbx->status);
1309 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1310 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1311 status = 0;
1312 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1313 ql_dbg(ql_dbg_async, vha, 0x5045,
1314 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1315 type, sp->handle, fcport->d_id.b.domain,
1316 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1317 le16_to_cpu(mbx->mb1));
1318
1319 data[0] = MBS_COMMAND_COMPLETE;
1320 if (sp->type == SRB_LOGIN_CMD) {
1321 fcport->port_type = FCT_TARGET;
1322 if (le16_to_cpu(mbx->mb1) & BIT_0)
1323 fcport->port_type = FCT_INITIATOR;
1324 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1325 fcport->flags |= FCF_FCP2_DEVICE;
1326 }
1327 goto logio_done;
1328 }
1329
1330 data[0] = le16_to_cpu(mbx->mb0);
1331 switch (data[0]) {
1332 case MBS_PORT_ID_USED:
1333 data[1] = le16_to_cpu(mbx->mb1);
1334 break;
1335 case MBS_LOOP_ID_USED:
1336 break;
1337 default:
1338 data[0] = MBS_COMMAND_ERROR;
1339 break;
1340 }
1341
1342 ql_log(ql_log_warn, vha, 0x5046,
1343 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1344 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1345 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1346 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1347 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1348 le16_to_cpu(mbx->mb7));
1349
1350 logio_done:
1351 sp->done(vha, sp, 0);
1352 }
1353
1354 static void
1355 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1356 sts_entry_t *pkt, int iocb_type)
1357 {
1358 const char func[] = "CT_IOCB";
1359 const char *type;
1360 srb_t *sp;
1361 struct fc_bsg_job *bsg_job;
1362 uint16_t comp_status;
1363 int res;
1364
1365 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1366 if (!sp)
1367 return;
1368
1369 bsg_job = sp->u.bsg_job;
1370
1371 type = "ct pass-through";
1372
1373 comp_status = le16_to_cpu(pkt->comp_status);
1374
1375 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1376 * fc payload to the caller
1377 */
1378 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1379 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1380
1381 if (comp_status != CS_COMPLETE) {
1382 if (comp_status == CS_DATA_UNDERRUN) {
1383 res = DID_OK << 16;
1384 bsg_job->reply->reply_payload_rcv_len =
1385 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1386
1387 ql_log(ql_log_warn, vha, 0x5048,
1388 "CT pass-through-%s error "
1389 "comp_status-status=0x%x total_byte = 0x%x.\n",
1390 type, comp_status,
1391 bsg_job->reply->reply_payload_rcv_len);
1392 } else {
1393 ql_log(ql_log_warn, vha, 0x5049,
1394 "CT pass-through-%s error "
1395 "comp_status-status=0x%x.\n", type, comp_status);
1396 res = DID_ERROR << 16;
1397 bsg_job->reply->reply_payload_rcv_len = 0;
1398 }
1399 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1400 (uint8_t *)pkt, sizeof(*pkt));
1401 } else {
1402 res = DID_OK << 16;
1403 bsg_job->reply->reply_payload_rcv_len =
1404 bsg_job->reply_payload.payload_len;
1405 bsg_job->reply_len = 0;
1406 }
1407
1408 sp->done(vha, sp, res);
1409 }
1410
1411 static void
1412 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1413 struct sts_entry_24xx *pkt, int iocb_type)
1414 {
1415 const char func[] = "ELS_CT_IOCB";
1416 const char *type;
1417 srb_t *sp;
1418 struct fc_bsg_job *bsg_job;
1419 uint16_t comp_status;
1420 uint32_t fw_status[3];
1421 uint8_t* fw_sts_ptr;
1422 int res;
1423
1424 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1425 if (!sp)
1426 return;
1427 bsg_job = sp->u.bsg_job;
1428
1429 type = NULL;
1430 switch (sp->type) {
1431 case SRB_ELS_CMD_RPT:
1432 case SRB_ELS_CMD_HST:
1433 type = "els";
1434 break;
1435 case SRB_CT_CMD:
1436 type = "ct pass-through";
1437 break;
1438 case SRB_ELS_DCMD:
1439 type = "Driver ELS logo";
1440 ql_dbg(ql_dbg_user, vha, 0x5047,
1441 "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1442 sp->done(vha, sp, 0);
1443 return;
1444 default:
1445 ql_dbg(ql_dbg_user, vha, 0x503e,
1446 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1447 return;
1448 }
1449
1450 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1451 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1452 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1453
1454 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1455 * fc payload to the caller
1456 */
1457 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1458 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1459
1460 if (comp_status != CS_COMPLETE) {
1461 if (comp_status == CS_DATA_UNDERRUN) {
1462 res = DID_OK << 16;
1463 bsg_job->reply->reply_payload_rcv_len =
1464 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1465
1466 ql_dbg(ql_dbg_user, vha, 0x503f,
1467 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1468 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1469 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1470 le16_to_cpu(((struct els_sts_entry_24xx *)
1471 pkt)->total_byte_count));
1472 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + 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_job->reply->reply_payload_rcv_len = 0;
1486 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1487 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1488 }
1489 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1490 (uint8_t *)pkt, sizeof(*pkt));
1491 }
1492 else {
1493 res = DID_OK << 16;
1494 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1495 bsg_job->reply_len = 0;
1496 }
1497
1498 sp->done(vha, sp, res);
1499 }
1500
1501 static void
1502 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1503 struct logio_entry_24xx *logio)
1504 {
1505 const char func[] = "LOGIO-IOCB";
1506 const char *type;
1507 fc_port_t *fcport;
1508 srb_t *sp;
1509 struct srb_iocb *lio;
1510 uint16_t *data;
1511 uint32_t iop[2];
1512
1513 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1514 if (!sp)
1515 return;
1516
1517 lio = &sp->u.iocb_cmd;
1518 type = sp->name;
1519 fcport = sp->fcport;
1520 data = lio->u.logio.data;
1521
1522 data[0] = MBS_COMMAND_ERROR;
1523 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1524 QLA_LOGIO_LOGIN_RETRIED : 0;
1525 if (logio->entry_status) {
1526 ql_log(ql_log_warn, fcport->vha, 0x5034,
1527 "Async-%s error entry - hdl=%x"
1528 "portid=%02x%02x%02x entry-status=%x.\n",
1529 type, sp->handle, fcport->d_id.b.domain,
1530 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1531 logio->entry_status);
1532 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1533 (uint8_t *)logio, sizeof(*logio));
1534
1535 goto logio_done;
1536 }
1537
1538 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1539 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1540 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1541 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1542 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1543 le32_to_cpu(logio->io_parameter[0]));
1544
1545 data[0] = MBS_COMMAND_COMPLETE;
1546 if (sp->type != SRB_LOGIN_CMD)
1547 goto logio_done;
1548
1549 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1550 if (iop[0] & BIT_4) {
1551 fcport->port_type = FCT_TARGET;
1552 if (iop[0] & BIT_8)
1553 fcport->flags |= FCF_FCP2_DEVICE;
1554 } else if (iop[0] & BIT_5)
1555 fcport->port_type = FCT_INITIATOR;
1556
1557 if (iop[0] & BIT_7)
1558 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1559
1560 if (logio->io_parameter[7] || logio->io_parameter[8])
1561 fcport->supported_classes |= FC_COS_CLASS2;
1562 if (logio->io_parameter[9] || logio->io_parameter[10])
1563 fcport->supported_classes |= FC_COS_CLASS3;
1564
1565 goto logio_done;
1566 }
1567
1568 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1569 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1570 switch (iop[0]) {
1571 case LSC_SCODE_PORTID_USED:
1572 data[0] = MBS_PORT_ID_USED;
1573 data[1] = LSW(iop[1]);
1574 break;
1575 case LSC_SCODE_NPORT_USED:
1576 data[0] = MBS_LOOP_ID_USED;
1577 break;
1578 default:
1579 data[0] = MBS_COMMAND_ERROR;
1580 break;
1581 }
1582
1583 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1584 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1585 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1586 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1587 le16_to_cpu(logio->comp_status),
1588 le32_to_cpu(logio->io_parameter[0]),
1589 le32_to_cpu(logio->io_parameter[1]));
1590
1591 logio_done:
1592 sp->done(vha, sp, 0);
1593 }
1594
1595 static void
1596 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1597 {
1598 const char func[] = "TMF-IOCB";
1599 const char *type;
1600 fc_port_t *fcport;
1601 srb_t *sp;
1602 struct srb_iocb *iocb;
1603 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1604
1605 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1606 if (!sp)
1607 return;
1608
1609 iocb = &sp->u.iocb_cmd;
1610 type = sp->name;
1611 fcport = sp->fcport;
1612 iocb->u.tmf.data = QLA_SUCCESS;
1613
1614 if (sts->entry_status) {
1615 ql_log(ql_log_warn, fcport->vha, 0x5038,
1616 "Async-%s error - hdl=%x entry-status(%x).\n",
1617 type, sp->handle, sts->entry_status);
1618 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1619 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1620 ql_log(ql_log_warn, fcport->vha, 0x5039,
1621 "Async-%s error - hdl=%x completion status(%x).\n",
1622 type, sp->handle, sts->comp_status);
1623 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1624 } else if ((le16_to_cpu(sts->scsi_status) &
1625 SS_RESPONSE_INFO_LEN_VALID)) {
1626 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1627 ql_log(ql_log_warn, fcport->vha, 0x503b,
1628 "Async-%s error - hdl=%x not enough response(%d).\n",
1629 type, sp->handle, sts->rsp_data_len);
1630 } else if (sts->data[3]) {
1631 ql_log(ql_log_warn, fcport->vha, 0x503c,
1632 "Async-%s error - hdl=%x response(%x).\n",
1633 type, sp->handle, sts->data[3]);
1634 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1635 }
1636 }
1637
1638 if (iocb->u.tmf.data != QLA_SUCCESS)
1639 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1640 (uint8_t *)sts, sizeof(*sts));
1641
1642 sp->done(vha, sp, 0);
1643 }
1644
1645 /**
1646 * qla2x00_process_response_queue() - Process response queue entries.
1647 * @ha: SCSI driver HA context
1648 */
1649 void
1650 qla2x00_process_response_queue(struct rsp_que *rsp)
1651 {
1652 struct scsi_qla_host *vha;
1653 struct qla_hw_data *ha = rsp->hw;
1654 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1655 sts_entry_t *pkt;
1656 uint16_t handle_cnt;
1657 uint16_t cnt;
1658
1659 vha = pci_get_drvdata(ha->pdev);
1660
1661 if (!vha->flags.online)
1662 return;
1663
1664 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1665 pkt = (sts_entry_t *)rsp->ring_ptr;
1666
1667 rsp->ring_index++;
1668 if (rsp->ring_index == rsp->length) {
1669 rsp->ring_index = 0;
1670 rsp->ring_ptr = rsp->ring;
1671 } else {
1672 rsp->ring_ptr++;
1673 }
1674
1675 if (pkt->entry_status != 0) {
1676 qla2x00_error_entry(vha, rsp, pkt);
1677 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1678 wmb();
1679 continue;
1680 }
1681
1682 switch (pkt->entry_type) {
1683 case STATUS_TYPE:
1684 qla2x00_status_entry(vha, rsp, pkt);
1685 break;
1686 case STATUS_TYPE_21:
1687 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1688 for (cnt = 0; cnt < handle_cnt; cnt++) {
1689 qla2x00_process_completed_request(vha, rsp->req,
1690 ((sts21_entry_t *)pkt)->handle[cnt]);
1691 }
1692 break;
1693 case STATUS_TYPE_22:
1694 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1695 for (cnt = 0; cnt < handle_cnt; cnt++) {
1696 qla2x00_process_completed_request(vha, rsp->req,
1697 ((sts22_entry_t *)pkt)->handle[cnt]);
1698 }
1699 break;
1700 case STATUS_CONT_TYPE:
1701 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1702 break;
1703 case MBX_IOCB_TYPE:
1704 qla2x00_mbx_iocb_entry(vha, rsp->req,
1705 (struct mbx_entry *)pkt);
1706 break;
1707 case CT_IOCB_TYPE:
1708 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1709 break;
1710 default:
1711 /* Type Not Supported. */
1712 ql_log(ql_log_warn, vha, 0x504a,
1713 "Received unknown response pkt type %x "
1714 "entry status=%x.\n",
1715 pkt->entry_type, pkt->entry_status);
1716 break;
1717 }
1718 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1719 wmb();
1720 }
1721
1722 /* Adjust ring index */
1723 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1724 }
1725
1726 static inline void
1727 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1728 uint32_t sense_len, struct rsp_que *rsp, int res)
1729 {
1730 struct scsi_qla_host *vha = sp->fcport->vha;
1731 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1732 uint32_t track_sense_len;
1733
1734 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1735 sense_len = SCSI_SENSE_BUFFERSIZE;
1736
1737 SET_CMD_SENSE_LEN(sp, sense_len);
1738 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1739 track_sense_len = sense_len;
1740
1741 if (sense_len > par_sense_len)
1742 sense_len = par_sense_len;
1743
1744 memcpy(cp->sense_buffer, sense_data, sense_len);
1745
1746 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1747 track_sense_len -= sense_len;
1748 SET_CMD_SENSE_LEN(sp, track_sense_len);
1749
1750 if (track_sense_len != 0) {
1751 rsp->status_srb = sp;
1752 cp->result = res;
1753 }
1754
1755 if (sense_len) {
1756 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1757 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1758 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1759 cp);
1760 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1761 cp->sense_buffer, sense_len);
1762 }
1763 }
1764
1765 struct scsi_dif_tuple {
1766 __be16 guard; /* Checksum */
1767 __be16 app_tag; /* APPL identifier */
1768 __be32 ref_tag; /* Target LBA or indirect LBA */
1769 };
1770
1771 /*
1772 * Checks the guard or meta-data for the type of error
1773 * detected by the HBA. In case of errors, we set the
1774 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1775 * to indicate to the kernel that the HBA detected error.
1776 */
1777 static inline int
1778 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1779 {
1780 struct scsi_qla_host *vha = sp->fcport->vha;
1781 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1782 uint8_t *ap = &sts24->data[12];
1783 uint8_t *ep = &sts24->data[20];
1784 uint32_t e_ref_tag, a_ref_tag;
1785 uint16_t e_app_tag, a_app_tag;
1786 uint16_t e_guard, a_guard;
1787
1788 /*
1789 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1790 * would make guard field appear at offset 2
1791 */
1792 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1793 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1794 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1795 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1796 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1797 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1798
1799 ql_dbg(ql_dbg_io, vha, 0x3023,
1800 "iocb(s) %p Returned STATUS.\n", sts24);
1801
1802 ql_dbg(ql_dbg_io, vha, 0x3024,
1803 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1804 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1805 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1806 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1807 a_app_tag, e_app_tag, a_guard, e_guard);
1808
1809 /*
1810 * Ignore sector if:
1811 * For type 3: ref & app tag is all 'f's
1812 * For type 0,1,2: app tag is all 'f's
1813 */
1814 if ((a_app_tag == 0xffff) &&
1815 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1816 (a_ref_tag == 0xffffffff))) {
1817 uint32_t blocks_done, resid;
1818 sector_t lba_s = scsi_get_lba(cmd);
1819
1820 /* 2TB boundary case covered automatically with this */
1821 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1822
1823 resid = scsi_bufflen(cmd) - (blocks_done *
1824 cmd->device->sector_size);
1825
1826 scsi_set_resid(cmd, resid);
1827 cmd->result = DID_OK << 16;
1828
1829 /* Update protection tag */
1830 if (scsi_prot_sg_count(cmd)) {
1831 uint32_t i, j = 0, k = 0, num_ent;
1832 struct scatterlist *sg;
1833 struct sd_dif_tuple *spt;
1834
1835 /* Patch the corresponding protection tags */
1836 scsi_for_each_prot_sg(cmd, sg,
1837 scsi_prot_sg_count(cmd), i) {
1838 num_ent = sg_dma_len(sg) / 8;
1839 if (k + num_ent < blocks_done) {
1840 k += num_ent;
1841 continue;
1842 }
1843 j = blocks_done - k - 1;
1844 k = blocks_done;
1845 break;
1846 }
1847
1848 if (k != blocks_done) {
1849 ql_log(ql_log_warn, vha, 0x302f,
1850 "unexpected tag values tag:lba=%x:%llx)\n",
1851 e_ref_tag, (unsigned long long)lba_s);
1852 return 1;
1853 }
1854
1855 spt = page_address(sg_page(sg)) + sg->offset;
1856 spt += j;
1857
1858 spt->app_tag = 0xffff;
1859 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1860 spt->ref_tag = 0xffffffff;
1861 }
1862
1863 return 0;
1864 }
1865
1866 /* check guard */
1867 if (e_guard != a_guard) {
1868 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1869 0x10, 0x1);
1870 set_driver_byte(cmd, DRIVER_SENSE);
1871 set_host_byte(cmd, DID_ABORT);
1872 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1873 return 1;
1874 }
1875
1876 /* check ref tag */
1877 if (e_ref_tag != a_ref_tag) {
1878 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1879 0x10, 0x3);
1880 set_driver_byte(cmd, DRIVER_SENSE);
1881 set_host_byte(cmd, DID_ABORT);
1882 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1883 return 1;
1884 }
1885
1886 /* check appl tag */
1887 if (e_app_tag != a_app_tag) {
1888 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1889 0x10, 0x2);
1890 set_driver_byte(cmd, DRIVER_SENSE);
1891 set_host_byte(cmd, DID_ABORT);
1892 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1893 return 1;
1894 }
1895
1896 return 1;
1897 }
1898
1899 static void
1900 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1901 struct req_que *req, uint32_t index)
1902 {
1903 struct qla_hw_data *ha = vha->hw;
1904 srb_t *sp;
1905 uint16_t comp_status;
1906 uint16_t scsi_status;
1907 uint16_t thread_id;
1908 uint32_t rval = EXT_STATUS_OK;
1909 struct fc_bsg_job *bsg_job = NULL;
1910 sts_entry_t *sts;
1911 struct sts_entry_24xx *sts24;
1912 sts = (sts_entry_t *) pkt;
1913 sts24 = (struct sts_entry_24xx *) pkt;
1914
1915 /* Validate handle. */
1916 if (index >= req->num_outstanding_cmds) {
1917 ql_log(ql_log_warn, vha, 0x70af,
1918 "Invalid SCSI completion handle 0x%x.\n", index);
1919 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1920 return;
1921 }
1922
1923 sp = req->outstanding_cmds[index];
1924 if (sp) {
1925 /* Free outstanding command slot. */
1926 req->outstanding_cmds[index] = NULL;
1927 bsg_job = sp->u.bsg_job;
1928 } else {
1929 ql_log(ql_log_warn, vha, 0x70b0,
1930 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1931 req->id, index);
1932
1933 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1934 return;
1935 }
1936
1937 if (IS_FWI2_CAPABLE(ha)) {
1938 comp_status = le16_to_cpu(sts24->comp_status);
1939 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1940 } else {
1941 comp_status = le16_to_cpu(sts->comp_status);
1942 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1943 }
1944
1945 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1946 switch (comp_status) {
1947 case CS_COMPLETE:
1948 if (scsi_status == 0) {
1949 bsg_job->reply->reply_payload_rcv_len =
1950 bsg_job->reply_payload.payload_len;
1951 vha->qla_stats.input_bytes +=
1952 bsg_job->reply->reply_payload_rcv_len;
1953 vha->qla_stats.input_requests++;
1954 rval = EXT_STATUS_OK;
1955 }
1956 goto done;
1957
1958 case CS_DATA_OVERRUN:
1959 ql_dbg(ql_dbg_user, vha, 0x70b1,
1960 "Command completed with date overrun thread_id=%d\n",
1961 thread_id);
1962 rval = EXT_STATUS_DATA_OVERRUN;
1963 break;
1964
1965 case CS_DATA_UNDERRUN:
1966 ql_dbg(ql_dbg_user, vha, 0x70b2,
1967 "Command completed with date underrun thread_id=%d\n",
1968 thread_id);
1969 rval = EXT_STATUS_DATA_UNDERRUN;
1970 break;
1971 case CS_BIDIR_RD_OVERRUN:
1972 ql_dbg(ql_dbg_user, vha, 0x70b3,
1973 "Command completed with read data overrun thread_id=%d\n",
1974 thread_id);
1975 rval = EXT_STATUS_DATA_OVERRUN;
1976 break;
1977
1978 case CS_BIDIR_RD_WR_OVERRUN:
1979 ql_dbg(ql_dbg_user, vha, 0x70b4,
1980 "Command completed with read and write data overrun "
1981 "thread_id=%d\n", thread_id);
1982 rval = EXT_STATUS_DATA_OVERRUN;
1983 break;
1984
1985 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1986 ql_dbg(ql_dbg_user, vha, 0x70b5,
1987 "Command completed with read data over and write data "
1988 "underrun thread_id=%d\n", thread_id);
1989 rval = EXT_STATUS_DATA_OVERRUN;
1990 break;
1991
1992 case CS_BIDIR_RD_UNDERRUN:
1993 ql_dbg(ql_dbg_user, vha, 0x70b6,
1994 "Command completed with read data data underrun "
1995 "thread_id=%d\n", thread_id);
1996 rval = EXT_STATUS_DATA_UNDERRUN;
1997 break;
1998
1999 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2000 ql_dbg(ql_dbg_user, vha, 0x70b7,
2001 "Command completed with read data under and write data "
2002 "overrun thread_id=%d\n", thread_id);
2003 rval = EXT_STATUS_DATA_UNDERRUN;
2004 break;
2005
2006 case CS_BIDIR_RD_WR_UNDERRUN:
2007 ql_dbg(ql_dbg_user, vha, 0x70b8,
2008 "Command completed with read and write data underrun "
2009 "thread_id=%d\n", thread_id);
2010 rval = EXT_STATUS_DATA_UNDERRUN;
2011 break;
2012
2013 case CS_BIDIR_DMA:
2014 ql_dbg(ql_dbg_user, vha, 0x70b9,
2015 "Command completed with data DMA error thread_id=%d\n",
2016 thread_id);
2017 rval = EXT_STATUS_DMA_ERR;
2018 break;
2019
2020 case CS_TIMEOUT:
2021 ql_dbg(ql_dbg_user, vha, 0x70ba,
2022 "Command completed with timeout thread_id=%d\n",
2023 thread_id);
2024 rval = EXT_STATUS_TIMEOUT;
2025 break;
2026 default:
2027 ql_dbg(ql_dbg_user, vha, 0x70bb,
2028 "Command completed with completion status=0x%x "
2029 "thread_id=%d\n", comp_status, thread_id);
2030 rval = EXT_STATUS_ERR;
2031 break;
2032 }
2033 bsg_job->reply->reply_payload_rcv_len = 0;
2034
2035 done:
2036 /* Return the vendor specific reply to API */
2037 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2038 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2039 /* Always return DID_OK, bsg will send the vendor specific response
2040 * in this case only */
2041 sp->done(vha, sp, (DID_OK << 6));
2042
2043 }
2044
2045 /**
2046 * qla2x00_status_entry() - Process a Status IOCB entry.
2047 * @ha: SCSI driver HA context
2048 * @pkt: Entry pointer
2049 */
2050 static void
2051 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2052 {
2053 srb_t *sp;
2054 fc_port_t *fcport;
2055 struct scsi_cmnd *cp;
2056 sts_entry_t *sts;
2057 struct sts_entry_24xx *sts24;
2058 uint16_t comp_status;
2059 uint16_t scsi_status;
2060 uint16_t ox_id;
2061 uint8_t lscsi_status;
2062 int32_t resid;
2063 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2064 fw_resid_len;
2065 uint8_t *rsp_info, *sense_data;
2066 struct qla_hw_data *ha = vha->hw;
2067 uint32_t handle;
2068 uint16_t que;
2069 struct req_que *req;
2070 int logit = 1;
2071 int res = 0;
2072 uint16_t state_flags = 0;
2073 uint16_t retry_delay = 0;
2074
2075 sts = (sts_entry_t *) pkt;
2076 sts24 = (struct sts_entry_24xx *) pkt;
2077 if (IS_FWI2_CAPABLE(ha)) {
2078 comp_status = le16_to_cpu(sts24->comp_status);
2079 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2080 state_flags = le16_to_cpu(sts24->state_flags);
2081 } else {
2082 comp_status = le16_to_cpu(sts->comp_status);
2083 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2084 }
2085 handle = (uint32_t) LSW(sts->handle);
2086 que = MSW(sts->handle);
2087 req = ha->req_q_map[que];
2088
2089 /* Check for invalid queue pointer */
2090 if (req == NULL ||
2091 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2092 ql_dbg(ql_dbg_io, vha, 0x3059,
2093 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2094 "que=%u.\n", sts->handle, req, que);
2095 return;
2096 }
2097
2098 /* Validate handle. */
2099 if (handle < req->num_outstanding_cmds) {
2100 sp = req->outstanding_cmds[handle];
2101 if (!sp) {
2102 ql_dbg(ql_dbg_io, vha, 0x3075,
2103 "%s(%ld): Already returned command for status handle (0x%x).\n",
2104 __func__, vha->host_no, sts->handle);
2105 return;
2106 }
2107 } else {
2108 ql_dbg(ql_dbg_io, vha, 0x3017,
2109 "Invalid status handle, out of range (0x%x).\n",
2110 sts->handle);
2111
2112 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2113 if (IS_P3P_TYPE(ha))
2114 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2115 else
2116 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2117 qla2xxx_wake_dpc(vha);
2118 }
2119 return;
2120 }
2121
2122 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2123 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2124 return;
2125 }
2126
2127 /* Task Management completion. */
2128 if (sp->type == SRB_TM_CMD) {
2129 qla24xx_tm_iocb_entry(vha, req, pkt);
2130 return;
2131 }
2132
2133 /* Fast path completion. */
2134 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2135 qla2x00_process_completed_request(vha, req, handle);
2136
2137 return;
2138 }
2139
2140 req->outstanding_cmds[handle] = NULL;
2141 cp = GET_CMD_SP(sp);
2142 if (cp == NULL) {
2143 ql_dbg(ql_dbg_io, vha, 0x3018,
2144 "Command already returned (0x%x/%p).\n",
2145 sts->handle, sp);
2146
2147 return;
2148 }
2149
2150 lscsi_status = scsi_status & STATUS_MASK;
2151
2152 fcport = sp->fcport;
2153
2154 ox_id = 0;
2155 sense_len = par_sense_len = rsp_info_len = resid_len =
2156 fw_resid_len = 0;
2157 if (IS_FWI2_CAPABLE(ha)) {
2158 if (scsi_status & SS_SENSE_LEN_VALID)
2159 sense_len = le32_to_cpu(sts24->sense_len);
2160 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2161 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2162 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2163 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2164 if (comp_status == CS_DATA_UNDERRUN)
2165 fw_resid_len = le32_to_cpu(sts24->residual_len);
2166 rsp_info = sts24->data;
2167 sense_data = sts24->data;
2168 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2169 ox_id = le16_to_cpu(sts24->ox_id);
2170 par_sense_len = sizeof(sts24->data);
2171 /* Valid values of the retry delay timer are 0x1-0xffef */
2172 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2173 retry_delay = sts24->retry_delay;
2174 } else {
2175 if (scsi_status & SS_SENSE_LEN_VALID)
2176 sense_len = le16_to_cpu(sts->req_sense_length);
2177 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2178 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2179 resid_len = le32_to_cpu(sts->residual_length);
2180 rsp_info = sts->rsp_info;
2181 sense_data = sts->req_sense_data;
2182 par_sense_len = sizeof(sts->req_sense_data);
2183 }
2184
2185 /* Check for any FCP transport errors. */
2186 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2187 /* Sense data lies beyond any FCP RESPONSE data. */
2188 if (IS_FWI2_CAPABLE(ha)) {
2189 sense_data += rsp_info_len;
2190 par_sense_len -= rsp_info_len;
2191 }
2192 if (rsp_info_len > 3 && rsp_info[3]) {
2193 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2194 "FCP I/O protocol failure (0x%x/0x%x).\n",
2195 rsp_info_len, rsp_info[3]);
2196
2197 res = DID_BUS_BUSY << 16;
2198 goto out;
2199 }
2200 }
2201
2202 /* Check for overrun. */
2203 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2204 scsi_status & SS_RESIDUAL_OVER)
2205 comp_status = CS_DATA_OVERRUN;
2206
2207 /*
2208 * Check retry_delay_timer value if we receive a busy or
2209 * queue full.
2210 */
2211 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2212 lscsi_status == SAM_STAT_BUSY)
2213 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2214
2215 /*
2216 * Based on Host and scsi status generate status code for Linux
2217 */
2218 switch (comp_status) {
2219 case CS_COMPLETE:
2220 case CS_QUEUE_FULL:
2221 if (scsi_status == 0) {
2222 res = DID_OK << 16;
2223 break;
2224 }
2225 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2226 resid = resid_len;
2227 scsi_set_resid(cp, resid);
2228
2229 if (!lscsi_status &&
2230 ((unsigned)(scsi_bufflen(cp) - resid) <
2231 cp->underflow)) {
2232 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2233 "Mid-layer underflow "
2234 "detected (0x%x of 0x%x bytes).\n",
2235 resid, scsi_bufflen(cp));
2236
2237 res = DID_ERROR << 16;
2238 break;
2239 }
2240 }
2241 res = DID_OK << 16 | lscsi_status;
2242
2243 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2244 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2245 "QUEUE FULL detected.\n");
2246 break;
2247 }
2248 logit = 0;
2249 if (lscsi_status != SS_CHECK_CONDITION)
2250 break;
2251
2252 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2253 if (!(scsi_status & SS_SENSE_LEN_VALID))
2254 break;
2255
2256 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2257 rsp, res);
2258 break;
2259
2260 case CS_DATA_UNDERRUN:
2261 /* Use F/W calculated residual length. */
2262 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2263 scsi_set_resid(cp, resid);
2264 if (scsi_status & SS_RESIDUAL_UNDER) {
2265 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2266 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2267 "Dropped frame(s) detected "
2268 "(0x%x of 0x%x bytes).\n",
2269 resid, scsi_bufflen(cp));
2270
2271 res = DID_ERROR << 16 | lscsi_status;
2272 goto check_scsi_status;
2273 }
2274
2275 if (!lscsi_status &&
2276 ((unsigned)(scsi_bufflen(cp) - resid) <
2277 cp->underflow)) {
2278 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2279 "Mid-layer underflow "
2280 "detected (0x%x of 0x%x bytes).\n",
2281 resid, scsi_bufflen(cp));
2282
2283 res = DID_ERROR << 16;
2284 break;
2285 }
2286 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2287 lscsi_status != SAM_STAT_BUSY) {
2288 /*
2289 * scsi status of task set and busy are considered to be
2290 * task not completed.
2291 */
2292
2293 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2294 "Dropped frame(s) detected (0x%x "
2295 "of 0x%x bytes).\n", resid,
2296 scsi_bufflen(cp));
2297
2298 res = DID_ERROR << 16 | lscsi_status;
2299 goto check_scsi_status;
2300 } else {
2301 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2302 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2303 scsi_status, lscsi_status);
2304 }
2305
2306 res = DID_OK << 16 | lscsi_status;
2307 logit = 0;
2308
2309 check_scsi_status:
2310 /*
2311 * Check to see if SCSI Status is non zero. If so report SCSI
2312 * Status.
2313 */
2314 if (lscsi_status != 0) {
2315 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2316 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2317 "QUEUE FULL detected.\n");
2318 logit = 1;
2319 break;
2320 }
2321 if (lscsi_status != SS_CHECK_CONDITION)
2322 break;
2323
2324 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2325 if (!(scsi_status & SS_SENSE_LEN_VALID))
2326 break;
2327
2328 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2329 sense_len, rsp, res);
2330 }
2331 break;
2332
2333 case CS_PORT_LOGGED_OUT:
2334 case CS_PORT_CONFIG_CHG:
2335 case CS_PORT_BUSY:
2336 case CS_INCOMPLETE:
2337 case CS_PORT_UNAVAILABLE:
2338 case CS_TIMEOUT:
2339 case CS_RESET:
2340
2341 /*
2342 * We are going to have the fc class block the rport
2343 * while we try to recover so instruct the mid layer
2344 * to requeue until the class decides how to handle this.
2345 */
2346 res = DID_TRANSPORT_DISRUPTED << 16;
2347
2348 if (comp_status == CS_TIMEOUT) {
2349 if (IS_FWI2_CAPABLE(ha))
2350 break;
2351 else if ((le16_to_cpu(sts->status_flags) &
2352 SF_LOGOUT_SENT) == 0)
2353 break;
2354 }
2355
2356 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2357 "Port to be marked lost on fcport=%02x%02x%02x, current "
2358 "port state= %s.\n", fcport->d_id.b.domain,
2359 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2360 port_state_str[atomic_read(&fcport->state)]);
2361
2362 if (atomic_read(&fcport->state) == FCS_ONLINE)
2363 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2364 break;
2365
2366 case CS_ABORTED:
2367 res = DID_RESET << 16;
2368 break;
2369
2370 case CS_DIF_ERROR:
2371 logit = qla2x00_handle_dif_error(sp, sts24);
2372 res = cp->result;
2373 break;
2374
2375 case CS_TRANSPORT:
2376 res = DID_ERROR << 16;
2377
2378 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2379 break;
2380
2381 if (state_flags & BIT_4)
2382 scmd_printk(KERN_WARNING, cp,
2383 "Unsupported device '%s' found.\n",
2384 cp->device->vendor);
2385 break;
2386
2387 default:
2388 res = DID_ERROR << 16;
2389 break;
2390 }
2391
2392 out:
2393 if (logit)
2394 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2395 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2396 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2397 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2398 comp_status, scsi_status, res, vha->host_no,
2399 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2400 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2401 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2402 resid_len, fw_resid_len, sp, cp);
2403
2404 if (rsp->status_srb == NULL)
2405 sp->done(ha, sp, res);
2406 }
2407
2408 /**
2409 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2410 * @ha: SCSI driver HA context
2411 * @pkt: Entry pointer
2412 *
2413 * Extended sense data.
2414 */
2415 static void
2416 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2417 {
2418 uint8_t sense_sz = 0;
2419 struct qla_hw_data *ha = rsp->hw;
2420 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2421 srb_t *sp = rsp->status_srb;
2422 struct scsi_cmnd *cp;
2423 uint32_t sense_len;
2424 uint8_t *sense_ptr;
2425
2426 if (!sp || !GET_CMD_SENSE_LEN(sp))
2427 return;
2428
2429 sense_len = GET_CMD_SENSE_LEN(sp);
2430 sense_ptr = GET_CMD_SENSE_PTR(sp);
2431
2432 cp = GET_CMD_SP(sp);
2433 if (cp == NULL) {
2434 ql_log(ql_log_warn, vha, 0x3025,
2435 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2436
2437 rsp->status_srb = NULL;
2438 return;
2439 }
2440
2441 if (sense_len > sizeof(pkt->data))
2442 sense_sz = sizeof(pkt->data);
2443 else
2444 sense_sz = sense_len;
2445
2446 /* Move sense data. */
2447 if (IS_FWI2_CAPABLE(ha))
2448 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2449 memcpy(sense_ptr, pkt->data, sense_sz);
2450 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2451 sense_ptr, sense_sz);
2452
2453 sense_len -= sense_sz;
2454 sense_ptr += sense_sz;
2455
2456 SET_CMD_SENSE_PTR(sp, sense_ptr);
2457 SET_CMD_SENSE_LEN(sp, sense_len);
2458
2459 /* Place command on done queue. */
2460 if (sense_len == 0) {
2461 rsp->status_srb = NULL;
2462 sp->done(ha, sp, cp->result);
2463 }
2464 }
2465
2466 /**
2467 * qla2x00_error_entry() - Process an error entry.
2468 * @ha: SCSI driver HA context
2469 * @pkt: Entry pointer
2470 */
2471 static void
2472 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2473 {
2474 srb_t *sp;
2475 struct qla_hw_data *ha = vha->hw;
2476 const char func[] = "ERROR-IOCB";
2477 uint16_t que = MSW(pkt->handle);
2478 struct req_que *req = NULL;
2479 int res = DID_ERROR << 16;
2480
2481 ql_dbg(ql_dbg_async, vha, 0x502a,
2482 "type of error status in response: 0x%x\n", pkt->entry_status);
2483
2484 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2485 goto fatal;
2486
2487 req = ha->req_q_map[que];
2488
2489 if (pkt->entry_status & RF_BUSY)
2490 res = DID_BUS_BUSY << 16;
2491
2492 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2493 if (sp) {
2494 sp->done(ha, sp, res);
2495 return;
2496 }
2497 fatal:
2498 ql_log(ql_log_warn, vha, 0x5030,
2499 "Error entry - invalid handle/queue (%04x).\n", que);
2500 }
2501
2502 /**
2503 * qla24xx_mbx_completion() - Process mailbox command completions.
2504 * @ha: SCSI driver HA context
2505 * @mb0: Mailbox0 register
2506 */
2507 static void
2508 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2509 {
2510 uint16_t cnt;
2511 uint32_t mboxes;
2512 uint16_t __iomem *wptr;
2513 struct qla_hw_data *ha = vha->hw;
2514 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2515
2516 /* Read all mbox registers? */
2517 mboxes = (1 << ha->mbx_count) - 1;
2518 if (!ha->mcp)
2519 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2520 else
2521 mboxes = ha->mcp->in_mb;
2522
2523 /* Load return mailbox registers. */
2524 ha->flags.mbox_int = 1;
2525 ha->mailbox_out[0] = mb0;
2526 mboxes >>= 1;
2527 wptr = (uint16_t __iomem *)&reg->mailbox1;
2528
2529 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2530 if (mboxes & BIT_0)
2531 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2532
2533 mboxes >>= 1;
2534 wptr++;
2535 }
2536 }
2537
2538 static void
2539 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2540 struct abort_entry_24xx *pkt)
2541 {
2542 const char func[] = "ABT_IOCB";
2543 srb_t *sp;
2544 struct srb_iocb *abt;
2545
2546 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2547 if (!sp)
2548 return;
2549
2550 abt = &sp->u.iocb_cmd;
2551 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2552 sp->done(vha, sp, 0);
2553 }
2554
2555 /**
2556 * qla24xx_process_response_queue() - Process response queue entries.
2557 * @ha: SCSI driver HA context
2558 */
2559 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2560 struct rsp_que *rsp)
2561 {
2562 struct sts_entry_24xx *pkt;
2563 struct qla_hw_data *ha = vha->hw;
2564
2565 if (!vha->flags.online)
2566 return;
2567
2568 if (rsp->msix && rsp->msix->cpuid != smp_processor_id()) {
2569 /* if kernel does not notify qla of IRQ's CPU change,
2570 * then set it here.
2571 */
2572 rsp->msix->cpuid = smp_processor_id();
2573 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid;
2574 }
2575
2576 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2577 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2578
2579 rsp->ring_index++;
2580 if (rsp->ring_index == rsp->length) {
2581 rsp->ring_index = 0;
2582 rsp->ring_ptr = rsp->ring;
2583 } else {
2584 rsp->ring_ptr++;
2585 }
2586
2587 if (pkt->entry_status != 0) {
2588 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2589
2590 if (qlt_24xx_process_response_error(vha, pkt))
2591 goto process_err;
2592
2593 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2594 wmb();
2595 continue;
2596 }
2597 process_err:
2598
2599 switch (pkt->entry_type) {
2600 case STATUS_TYPE:
2601 qla2x00_status_entry(vha, rsp, pkt);
2602 break;
2603 case STATUS_CONT_TYPE:
2604 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2605 break;
2606 case VP_RPT_ID_IOCB_TYPE:
2607 qla24xx_report_id_acquisition(vha,
2608 (struct vp_rpt_id_entry_24xx *)pkt);
2609 break;
2610 case LOGINOUT_PORT_IOCB_TYPE:
2611 qla24xx_logio_entry(vha, rsp->req,
2612 (struct logio_entry_24xx *)pkt);
2613 break;
2614 case CT_IOCB_TYPE:
2615 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2616 break;
2617 case ELS_IOCB_TYPE:
2618 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2619 break;
2620 case ABTS_RECV_24XX:
2621 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2622 /* ensure that the ATIO queue is empty */
2623 qlt_handle_abts_recv(vha, (response_t *)pkt);
2624 break;
2625 } else {
2626 /* drop through */
2627 qlt_24xx_process_atio_queue(vha, 1);
2628 }
2629 case ABTS_RESP_24XX:
2630 case CTIO_TYPE7:
2631 case NOTIFY_ACK_TYPE:
2632 case CTIO_CRC2:
2633 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2634 break;
2635 case MARKER_TYPE:
2636 /* Do nothing in this case, this check is to prevent it
2637 * from falling into default case
2638 */
2639 break;
2640 case ABORT_IOCB_TYPE:
2641 qla24xx_abort_iocb_entry(vha, rsp->req,
2642 (struct abort_entry_24xx *)pkt);
2643 break;
2644 default:
2645 /* Type Not Supported. */
2646 ql_dbg(ql_dbg_async, vha, 0x5042,
2647 "Received unknown response pkt type %x "
2648 "entry status=%x.\n",
2649 pkt->entry_type, pkt->entry_status);
2650 break;
2651 }
2652 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2653 wmb();
2654 }
2655
2656 /* Adjust ring index */
2657 if (IS_P3P_TYPE(ha)) {
2658 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2659 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2660 } else
2661 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2662 }
2663
2664 static void
2665 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2666 {
2667 int rval;
2668 uint32_t cnt;
2669 struct qla_hw_data *ha = vha->hw;
2670 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2671
2672 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2673 !IS_QLA27XX(ha))
2674 return;
2675
2676 rval = QLA_SUCCESS;
2677 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2678 RD_REG_DWORD(&reg->iobase_addr);
2679 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2680 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2681 rval == QLA_SUCCESS; cnt--) {
2682 if (cnt) {
2683 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2684 udelay(10);
2685 } else
2686 rval = QLA_FUNCTION_TIMEOUT;
2687 }
2688 if (rval == QLA_SUCCESS)
2689 goto next_test;
2690
2691 rval = QLA_SUCCESS;
2692 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2693 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2694 rval == QLA_SUCCESS; cnt--) {
2695 if (cnt) {
2696 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2697 udelay(10);
2698 } else
2699 rval = QLA_FUNCTION_TIMEOUT;
2700 }
2701 if (rval != QLA_SUCCESS)
2702 goto done;
2703
2704 next_test:
2705 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2706 ql_log(ql_log_info, vha, 0x504c,
2707 "Additional code -- 0x55AA.\n");
2708
2709 done:
2710 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2711 RD_REG_DWORD(&reg->iobase_window);
2712 }
2713
2714 /**
2715 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2716 * @irq:
2717 * @dev_id: SCSI driver HA context
2718 *
2719 * Called by system whenever the host adapter generates an interrupt.
2720 *
2721 * Returns handled flag.
2722 */
2723 irqreturn_t
2724 qla24xx_intr_handler(int irq, void *dev_id)
2725 {
2726 scsi_qla_host_t *vha;
2727 struct qla_hw_data *ha;
2728 struct device_reg_24xx __iomem *reg;
2729 int status;
2730 unsigned long iter;
2731 uint32_t stat;
2732 uint32_t hccr;
2733 uint16_t mb[8];
2734 struct rsp_que *rsp;
2735 unsigned long flags;
2736
2737 rsp = (struct rsp_que *) dev_id;
2738 if (!rsp) {
2739 ql_log(ql_log_info, NULL, 0x5059,
2740 "%s: NULL response queue pointer.\n", __func__);
2741 return IRQ_NONE;
2742 }
2743
2744 ha = rsp->hw;
2745 reg = &ha->iobase->isp24;
2746 status = 0;
2747
2748 if (unlikely(pci_channel_offline(ha->pdev)))
2749 return IRQ_HANDLED;
2750
2751 spin_lock_irqsave(&ha->hardware_lock, flags);
2752 vha = pci_get_drvdata(ha->pdev);
2753 for (iter = 50; iter--; ) {
2754 stat = RD_REG_DWORD(&reg->host_status);
2755 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2756 break;
2757 if (stat & HSRX_RISC_PAUSED) {
2758 if (unlikely(pci_channel_offline(ha->pdev)))
2759 break;
2760
2761 hccr = RD_REG_DWORD(&reg->hccr);
2762
2763 ql_log(ql_log_warn, vha, 0x504b,
2764 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2765 hccr);
2766
2767 qla2xxx_check_risc_status(vha);
2768
2769 ha->isp_ops->fw_dump(vha, 1);
2770 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2771 break;
2772 } else if ((stat & HSRX_RISC_INT) == 0)
2773 break;
2774
2775 switch (stat & 0xff) {
2776 case INTR_ROM_MB_SUCCESS:
2777 case INTR_ROM_MB_FAILED:
2778 case INTR_MB_SUCCESS:
2779 case INTR_MB_FAILED:
2780 qla24xx_mbx_completion(vha, MSW(stat));
2781 status |= MBX_INTERRUPT;
2782
2783 break;
2784 case INTR_ASYNC_EVENT:
2785 mb[0] = MSW(stat);
2786 mb[1] = RD_REG_WORD(&reg->mailbox1);
2787 mb[2] = RD_REG_WORD(&reg->mailbox2);
2788 mb[3] = RD_REG_WORD(&reg->mailbox3);
2789 qla2x00_async_event(vha, rsp, mb);
2790 break;
2791 case INTR_RSP_QUE_UPDATE:
2792 case INTR_RSP_QUE_UPDATE_83XX:
2793 qla24xx_process_response_queue(vha, rsp);
2794 break;
2795 case INTR_ATIO_QUE_UPDATE:{
2796 unsigned long flags2;
2797 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2798 qlt_24xx_process_atio_queue(vha, 1);
2799 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2800 break;
2801 }
2802 case INTR_ATIO_RSP_QUE_UPDATE: {
2803 unsigned long flags2;
2804 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2805 qlt_24xx_process_atio_queue(vha, 1);
2806 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2807
2808 qla24xx_process_response_queue(vha, rsp);
2809 break;
2810 }
2811 default:
2812 ql_dbg(ql_dbg_async, vha, 0x504f,
2813 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2814 break;
2815 }
2816 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2817 RD_REG_DWORD_RELAXED(&reg->hccr);
2818 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2819 ndelay(3500);
2820 }
2821 qla2x00_handle_mbx_completion(ha, status);
2822 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2823
2824 return IRQ_HANDLED;
2825 }
2826
2827 static irqreturn_t
2828 qla24xx_msix_rsp_q(int irq, void *dev_id)
2829 {
2830 struct qla_hw_data *ha;
2831 struct rsp_que *rsp;
2832 struct device_reg_24xx __iomem *reg;
2833 struct scsi_qla_host *vha;
2834 unsigned long flags;
2835 uint32_t stat = 0;
2836
2837 rsp = (struct rsp_que *) dev_id;
2838 if (!rsp) {
2839 ql_log(ql_log_info, NULL, 0x505a,
2840 "%s: NULL response queue pointer.\n", __func__);
2841 return IRQ_NONE;
2842 }
2843 ha = rsp->hw;
2844 reg = &ha->iobase->isp24;
2845
2846 spin_lock_irqsave(&ha->hardware_lock, flags);
2847
2848 vha = pci_get_drvdata(ha->pdev);
2849 /*
2850 * Use host_status register to check to PCI disconnection before we
2851 * we process the response queue.
2852 */
2853 stat = RD_REG_DWORD(&reg->host_status);
2854 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2855 goto out;
2856 qla24xx_process_response_queue(vha, rsp);
2857 if (!ha->flags.disable_msix_handshake) {
2858 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2859 RD_REG_DWORD_RELAXED(&reg->hccr);
2860 }
2861 out:
2862 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2863
2864 return IRQ_HANDLED;
2865 }
2866
2867 static irqreturn_t
2868 qla25xx_msix_rsp_q(int irq, void *dev_id)
2869 {
2870 struct qla_hw_data *ha;
2871 scsi_qla_host_t *vha;
2872 struct rsp_que *rsp;
2873 struct device_reg_24xx __iomem *reg;
2874 unsigned long flags;
2875 uint32_t hccr = 0;
2876
2877 rsp = (struct rsp_que *) dev_id;
2878 if (!rsp) {
2879 ql_log(ql_log_info, NULL, 0x505b,
2880 "%s: NULL response queue pointer.\n", __func__);
2881 return IRQ_NONE;
2882 }
2883 ha = rsp->hw;
2884 vha = pci_get_drvdata(ha->pdev);
2885
2886 /* Clear the interrupt, if enabled, for this response queue */
2887 if (!ha->flags.disable_msix_handshake) {
2888 reg = &ha->iobase->isp24;
2889 spin_lock_irqsave(&ha->hardware_lock, flags);
2890 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2891 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2892 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2893 }
2894 if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2895 goto out;
2896 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2897
2898 out:
2899 return IRQ_HANDLED;
2900 }
2901
2902 static irqreturn_t
2903 qla24xx_msix_default(int irq, void *dev_id)
2904 {
2905 scsi_qla_host_t *vha;
2906 struct qla_hw_data *ha;
2907 struct rsp_que *rsp;
2908 struct device_reg_24xx __iomem *reg;
2909 int status;
2910 uint32_t stat;
2911 uint32_t hccr;
2912 uint16_t mb[8];
2913 unsigned long flags;
2914
2915 rsp = (struct rsp_que *) dev_id;
2916 if (!rsp) {
2917 ql_log(ql_log_info, NULL, 0x505c,
2918 "%s: NULL response queue pointer.\n", __func__);
2919 return IRQ_NONE;
2920 }
2921 ha = rsp->hw;
2922 reg = &ha->iobase->isp24;
2923 status = 0;
2924
2925 spin_lock_irqsave(&ha->hardware_lock, flags);
2926 vha = pci_get_drvdata(ha->pdev);
2927 do {
2928 stat = RD_REG_DWORD(&reg->host_status);
2929 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2930 break;
2931 if (stat & HSRX_RISC_PAUSED) {
2932 if (unlikely(pci_channel_offline(ha->pdev)))
2933 break;
2934
2935 hccr = RD_REG_DWORD(&reg->hccr);
2936
2937 ql_log(ql_log_info, vha, 0x5050,
2938 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2939 hccr);
2940
2941 qla2xxx_check_risc_status(vha);
2942
2943 ha->isp_ops->fw_dump(vha, 1);
2944 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2945 break;
2946 } else if ((stat & HSRX_RISC_INT) == 0)
2947 break;
2948
2949 switch (stat & 0xff) {
2950 case INTR_ROM_MB_SUCCESS:
2951 case INTR_ROM_MB_FAILED:
2952 case INTR_MB_SUCCESS:
2953 case INTR_MB_FAILED:
2954 qla24xx_mbx_completion(vha, MSW(stat));
2955 status |= MBX_INTERRUPT;
2956
2957 break;
2958 case INTR_ASYNC_EVENT:
2959 mb[0] = MSW(stat);
2960 mb[1] = RD_REG_WORD(&reg->mailbox1);
2961 mb[2] = RD_REG_WORD(&reg->mailbox2);
2962 mb[3] = RD_REG_WORD(&reg->mailbox3);
2963 qla2x00_async_event(vha, rsp, mb);
2964 break;
2965 case INTR_RSP_QUE_UPDATE:
2966 case INTR_RSP_QUE_UPDATE_83XX:
2967 qla24xx_process_response_queue(vha, rsp);
2968 break;
2969 case INTR_ATIO_QUE_UPDATE:{
2970 unsigned long flags2;
2971 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2972 qlt_24xx_process_atio_queue(vha, 1);
2973 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2974 break;
2975 }
2976 case INTR_ATIO_RSP_QUE_UPDATE: {
2977 unsigned long flags2;
2978 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2979 qlt_24xx_process_atio_queue(vha, 1);
2980 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2981
2982 qla24xx_process_response_queue(vha, rsp);
2983 break;
2984 }
2985 default:
2986 ql_dbg(ql_dbg_async, vha, 0x5051,
2987 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2988 break;
2989 }
2990 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2991 } while (0);
2992 qla2x00_handle_mbx_completion(ha, status);
2993 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2994
2995 return IRQ_HANDLED;
2996 }
2997
2998 /* Interrupt handling helpers. */
2999
3000 struct qla_init_msix_entry {
3001 const char *name;
3002 irq_handler_t handler;
3003 };
3004
3005 static struct qla_init_msix_entry msix_entries[3] = {
3006 { "qla2xxx (default)", qla24xx_msix_default },
3007 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3008 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
3009 };
3010
3011 static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
3012 { "qla2xxx (default)", qla82xx_msix_default },
3013 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3014 };
3015
3016 static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
3017 { "qla2xxx (default)", qla24xx_msix_default },
3018 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3019 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3020 };
3021
3022 static void
3023 qla24xx_disable_msix(struct qla_hw_data *ha)
3024 {
3025 int i;
3026 struct qla_msix_entry *qentry;
3027 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3028
3029 for (i = 0; i < ha->msix_count; i++) {
3030 qentry = &ha->msix_entries[i];
3031 if (qentry->have_irq) {
3032 /* un-register irq cpu affinity notification */
3033 irq_set_affinity_notifier(qentry->vector, NULL);
3034 free_irq(qentry->vector, qentry->rsp);
3035 }
3036 }
3037 pci_disable_msix(ha->pdev);
3038 kfree(ha->msix_entries);
3039 ha->msix_entries = NULL;
3040 ha->flags.msix_enabled = 0;
3041 ql_dbg(ql_dbg_init, vha, 0x0042,
3042 "Disabled the MSI.\n");
3043 }
3044
3045 static int
3046 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3047 {
3048 #define MIN_MSIX_COUNT 2
3049 #define ATIO_VECTOR 2
3050 int i, ret;
3051 struct msix_entry *entries;
3052 struct qla_msix_entry *qentry;
3053 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3054
3055 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3056 GFP_KERNEL);
3057 if (!entries) {
3058 ql_log(ql_log_warn, vha, 0x00bc,
3059 "Failed to allocate memory for msix_entry.\n");
3060 return -ENOMEM;
3061 }
3062
3063 for (i = 0; i < ha->msix_count; i++)
3064 entries[i].entry = i;
3065
3066 ret = pci_enable_msix_range(ha->pdev,
3067 entries, MIN_MSIX_COUNT, ha->msix_count);
3068 if (ret < 0) {
3069 ql_log(ql_log_fatal, vha, 0x00c7,
3070 "MSI-X: Failed to enable support, "
3071 "giving up -- %d/%d.\n",
3072 ha->msix_count, ret);
3073 goto msix_out;
3074 } else if (ret < ha->msix_count) {
3075 ql_log(ql_log_warn, vha, 0x00c6,
3076 "MSI-X: Failed to enable support "
3077 "-- %d/%d\n Retry with %d vectors.\n",
3078 ha->msix_count, ret, ret);
3079 ha->msix_count = ret;
3080 ha->max_rsp_queues = ha->msix_count - 1;
3081 }
3082 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3083 ha->msix_count, GFP_KERNEL);
3084 if (!ha->msix_entries) {
3085 ql_log(ql_log_fatal, vha, 0x00c8,
3086 "Failed to allocate memory for ha->msix_entries.\n");
3087 ret = -ENOMEM;
3088 goto msix_out;
3089 }
3090 ha->flags.msix_enabled = 1;
3091
3092 for (i = 0; i < ha->msix_count; i++) {
3093 qentry = &ha->msix_entries[i];
3094 qentry->vector = entries[i].vector;
3095 qentry->entry = entries[i].entry;
3096 qentry->have_irq = 0;
3097 qentry->rsp = NULL;
3098 qentry->irq_notify.notify = qla_irq_affinity_notify;
3099 qentry->irq_notify.release = qla_irq_affinity_release;
3100 qentry->cpuid = -1;
3101 }
3102
3103 /* Enable MSI-X vectors for the base queue */
3104 for (i = 0; i < 2; i++) {
3105 qentry = &ha->msix_entries[i];
3106 qentry->rsp = rsp;
3107 rsp->msix = qentry;
3108 if (IS_P3P_TYPE(ha))
3109 ret = request_irq(qentry->vector,
3110 qla82xx_msix_entries[i].handler,
3111 0, qla82xx_msix_entries[i].name, rsp);
3112 else
3113 ret = request_irq(qentry->vector,
3114 msix_entries[i].handler,
3115 0, msix_entries[i].name, rsp);
3116 if (ret)
3117 goto msix_register_fail;
3118 qentry->have_irq = 1;
3119
3120 /* Register for CPU affinity notification. */
3121 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
3122
3123 /* Schedule work (ie. trigger a notification) to read cpu
3124 * mask for this specific irq.
3125 * kref_get is required because
3126 * irq_affinity_notify() will do
3127 * kref_put().
3128 */
3129 kref_get(&qentry->irq_notify.kref);
3130 schedule_work(&qentry->irq_notify.work);
3131 }
3132
3133 /*
3134 * If target mode is enable, also request the vector for the ATIO
3135 * queue.
3136 */
3137 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3138 qentry = &ha->msix_entries[ATIO_VECTOR];
3139 qentry->rsp = rsp;
3140 rsp->msix = qentry;
3141 ret = request_irq(qentry->vector,
3142 qla83xx_msix_entries[ATIO_VECTOR].handler,
3143 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3144 qentry->have_irq = 1;
3145 }
3146
3147 msix_register_fail:
3148 if (ret) {
3149 ql_log(ql_log_fatal, vha, 0x00cb,
3150 "MSI-X: unable to register handler -- %x/%d.\n",
3151 qentry->vector, ret);
3152 qla24xx_disable_msix(ha);
3153 ha->mqenable = 0;
3154 goto msix_out;
3155 }
3156
3157 /* Enable MSI-X vector for response queue update for queue 0 */
3158 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3159 if (ha->msixbase && ha->mqiobase &&
3160 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3161 ha->mqenable = 1;
3162 } else
3163 if (ha->mqiobase
3164 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3165 ha->mqenable = 1;
3166 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3167 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3168 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3169 ql_dbg(ql_dbg_init, vha, 0x0055,
3170 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3171 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3172
3173 msix_out:
3174 kfree(entries);
3175 return ret;
3176 }
3177
3178 int
3179 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3180 {
3181 int ret = QLA_FUNCTION_FAILED;
3182 device_reg_t *reg = ha->iobase;
3183 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3184
3185 /* If possible, enable MSI-X. */
3186 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3187 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3188 !IS_QLA27XX(ha))
3189 goto skip_msi;
3190
3191 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3192 (ha->pdev->subsystem_device == 0x7040 ||
3193 ha->pdev->subsystem_device == 0x7041 ||
3194 ha->pdev->subsystem_device == 0x1705)) {
3195 ql_log(ql_log_warn, vha, 0x0034,
3196 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3197 ha->pdev->subsystem_vendor,
3198 ha->pdev->subsystem_device);
3199 goto skip_msi;
3200 }
3201
3202 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3203 ql_log(ql_log_warn, vha, 0x0035,
3204 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3205 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3206 goto skip_msix;
3207 }
3208
3209 ret = qla24xx_enable_msix(ha, rsp);
3210 if (!ret) {
3211 ql_dbg(ql_dbg_init, vha, 0x0036,
3212 "MSI-X: Enabled (0x%X, 0x%X).\n",
3213 ha->chip_revision, ha->fw_attributes);
3214 goto clear_risc_ints;
3215 }
3216
3217 skip_msix:
3218
3219 ql_log(ql_log_info, vha, 0x0037,
3220 "Falling back-to MSI mode -%d.\n", ret);
3221
3222 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3223 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3224 !IS_QLA27XX(ha))
3225 goto skip_msi;
3226
3227 ret = pci_enable_msi(ha->pdev);
3228 if (!ret) {
3229 ql_dbg(ql_dbg_init, vha, 0x0038,
3230 "MSI: Enabled.\n");
3231 ha->flags.msi_enabled = 1;
3232 } else
3233 ql_log(ql_log_warn, vha, 0x0039,
3234 "Falling back-to INTa mode -- %d.\n", ret);
3235 skip_msi:
3236
3237 /* Skip INTx on ISP82xx. */
3238 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3239 return QLA_FUNCTION_FAILED;
3240
3241 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3242 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3243 QLA2XXX_DRIVER_NAME, rsp);
3244 if (ret) {
3245 ql_log(ql_log_warn, vha, 0x003a,
3246 "Failed to reserve interrupt %d already in use.\n",
3247 ha->pdev->irq);
3248 goto fail;
3249 } else if (!ha->flags.msi_enabled) {
3250 ql_dbg(ql_dbg_init, vha, 0x0125,
3251 "INTa mode: Enabled.\n");
3252 ha->flags.mr_intr_valid = 1;
3253 }
3254
3255 clear_risc_ints:
3256 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3257 goto fail;
3258
3259 spin_lock_irq(&ha->hardware_lock);
3260 WRT_REG_WORD(&reg->isp.semaphore, 0);
3261 spin_unlock_irq(&ha->hardware_lock);
3262
3263 fail:
3264 return ret;
3265 }
3266
3267 void
3268 qla2x00_free_irqs(scsi_qla_host_t *vha)
3269 {
3270 struct qla_hw_data *ha = vha->hw;
3271 struct rsp_que *rsp;
3272
3273 /*
3274 * We need to check that ha->rsp_q_map is valid in case we are called
3275 * from a probe failure context.
3276 */
3277 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3278 return;
3279 rsp = ha->rsp_q_map[0];
3280
3281 if (ha->flags.msix_enabled)
3282 qla24xx_disable_msix(ha);
3283 else if (ha->flags.msi_enabled) {
3284 free_irq(ha->pdev->irq, rsp);
3285 pci_disable_msi(ha->pdev);
3286 } else
3287 free_irq(ha->pdev->irq, rsp);
3288 }
3289
3290
3291 int qla25xx_request_irq(struct rsp_que *rsp)
3292 {
3293 struct qla_hw_data *ha = rsp->hw;
3294 struct qla_init_msix_entry *intr = &msix_entries[2];
3295 struct qla_msix_entry *msix = rsp->msix;
3296 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3297 int ret;
3298
3299 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3300 if (ret) {
3301 ql_log(ql_log_fatal, vha, 0x00e6,
3302 "MSI-X: Unable to register handler -- %x/%d.\n",
3303 msix->vector, ret);
3304 return ret;
3305 }
3306 msix->have_irq = 1;
3307 msix->rsp = rsp;
3308 return ret;
3309 }
3310
3311
3312 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */
3313 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
3314 const cpumask_t *mask)
3315 {
3316 struct qla_msix_entry *e =
3317 container_of(notify, struct qla_msix_entry, irq_notify);
3318 struct qla_hw_data *ha;
3319 struct scsi_qla_host *base_vha;
3320
3321 /* user is recommended to set mask to just 1 cpu */
3322 e->cpuid = cpumask_first(mask);
3323
3324 ha = e->rsp->hw;
3325 base_vha = pci_get_drvdata(ha->pdev);
3326
3327 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3328 "%s: host %ld : vector %d cpu %d \n", __func__,
3329 base_vha->host_no, e->vector, e->cpuid);
3330
3331 if (e->have_irq) {
3332 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) &&
3333 (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) {
3334 ha->tgt.rspq_vector_cpuid = e->cpuid;
3335 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3336 "%s: host%ld: rspq vector %d cpu %d runtime change\n",
3337 __func__, base_vha->host_no, e->vector, e->cpuid);
3338 }
3339 }
3340 }
3341
3342 static void qla_irq_affinity_release(struct kref *ref)
3343 {
3344 struct irq_affinity_notify *notify =
3345 container_of(ref, struct irq_affinity_notify, kref);
3346 struct qla_msix_entry *e =
3347 container_of(notify, struct qla_msix_entry, irq_notify);
3348 struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
3349
3350 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3351 "%s: host%ld: vector %d cpu %d \n", __func__,
3352 base_vha->host_no, e->vector, e->cpuid);
3353 }
Linux kernel - Deliverables
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