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[mirror_ubuntu-jammy-kernel.git] / drivers / scsi / qla2xxx / qla_isr.c
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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
16static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
17static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
18static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
19static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
20 sts_entry_t *);
21static void qla_irq_affinity_notify(struct irq_affinity_notify *,
22 const cpumask_t *);
23static 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 */
35irqreturn_t
36qla2100_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
119bool
120qla2x00_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
139bool
140qla2x00_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 */
154irqreturn_t
155qla2300_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 */
265static void
266qla2x00_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
300static void
301qla81xx_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
362const char *
363qla2x00_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
380static void
381qla83xx_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
542int
543qla2x00_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
567static inline fc_port_t *
568qla2x00_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 */
583void
584qla2x00_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 }
652skip_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.\n");
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.\n");
721
722 break;
723 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
724 ql_dbg(ql_dbg_async, vha, 0x5009,
725 "LIP occurred (%x).\n", mb[1]);
726
727 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
728 atomic_set(&vha->loop_state, LOOP_DOWN);
729 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
730 qla2x00_mark_all_devices_lost(vha, 1);
731 }
732
733 if (vha->vp_idx) {
734 atomic_set(&vha->vp_state, VP_FAILED);
735 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
736 }
737
738 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
739 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
740
741 vha->flags.management_server_logged_in = 0;
742 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
743 break;
744
745 case MBA_LOOP_UP: /* Loop Up Event */
746 if (IS_QLA2100(ha) || IS_QLA2200(ha))
747 ha->link_data_rate = PORT_SPEED_1GB;
748 else
749 ha->link_data_rate = mb[1];
750
751 ql_log(ql_log_info, vha, 0x500a,
752 "LOOP UP detected (%s Gbps).\n",
753 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
754
755 vha->flags.management_server_logged_in = 0;
756 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
757 break;
758
759 case MBA_LOOP_DOWN: /* Loop Down Event */
760 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
761 ? RD_REG_WORD(&reg24->mailbox4) : 0;
762 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(&reg82->mailbox_out[4])
763 : mbx;
764 ql_log(ql_log_info, vha, 0x500b,
765 "LOOP DOWN detected (%x %x %x %x).\n",
766 mb[1], mb[2], mb[3], mbx);
767
768 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
769 atomic_set(&vha->loop_state, LOOP_DOWN);
770 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
771 /*
772 * In case of loop down, restore WWPN from
773 * NVRAM in case of FA-WWPN capable ISP
774 * Restore for Physical Port only
775 */
776 if (!vha->vp_idx) {
777 if (ha->flags.fawwpn_enabled) {
778 void *wwpn = ha->init_cb->port_name;
779 memcpy(vha->port_name, wwpn, WWN_SIZE);
780 fc_host_port_name(vha->host) =
781 wwn_to_u64(vha->port_name);
782 ql_dbg(ql_dbg_init + ql_dbg_verbose,
783 vha, 0x0144, "LOOP DOWN detected,"
784 "restore WWPN %016llx\n",
785 wwn_to_u64(vha->port_name));
786 }
787
788 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
789 }
790
791 vha->device_flags |= DFLG_NO_CABLE;
792 qla2x00_mark_all_devices_lost(vha, 1);
793 }
794
795 if (vha->vp_idx) {
796 atomic_set(&vha->vp_state, VP_FAILED);
797 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
798 }
799
800 vha->flags.management_server_logged_in = 0;
801 ha->link_data_rate = PORT_SPEED_UNKNOWN;
802 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
803 break;
804
805 case MBA_LIP_RESET: /* LIP reset occurred */
806 ql_dbg(ql_dbg_async, vha, 0x500c,
807 "LIP reset occurred (%x).\n", mb[1]);
808
809 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
810 atomic_set(&vha->loop_state, LOOP_DOWN);
811 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
812 qla2x00_mark_all_devices_lost(vha, 1);
813 }
814
815 if (vha->vp_idx) {
816 atomic_set(&vha->vp_state, VP_FAILED);
817 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
818 }
819
820 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
821
822 ha->operating_mode = LOOP;
823 vha->flags.management_server_logged_in = 0;
824 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
825 break;
826
827 /* case MBA_DCBX_COMPLETE: */
828 case MBA_POINT_TO_POINT: /* Point-to-Point */
829 if (IS_QLA2100(ha))
830 break;
831
832 if (IS_CNA_CAPABLE(ha)) {
833 ql_dbg(ql_dbg_async, vha, 0x500d,
834 "DCBX Completed -- %04x %04x %04x.\n",
835 mb[1], mb[2], mb[3]);
836 if (ha->notify_dcbx_comp && !vha->vp_idx)
837 complete(&ha->dcbx_comp);
838
839 } else
840 ql_dbg(ql_dbg_async, vha, 0x500e,
841 "Asynchronous P2P MODE received.\n");
842
843 /*
844 * Until there's a transition from loop down to loop up, treat
845 * this as loop down only.
846 */
847 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
848 atomic_set(&vha->loop_state, LOOP_DOWN);
849 if (!atomic_read(&vha->loop_down_timer))
850 atomic_set(&vha->loop_down_timer,
851 LOOP_DOWN_TIME);
852 qla2x00_mark_all_devices_lost(vha, 1);
853 }
854
855 if (vha->vp_idx) {
856 atomic_set(&vha->vp_state, VP_FAILED);
857 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
858 }
859
860 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
861 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
862
863 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
864 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
865
866 ha->flags.gpsc_supported = 1;
867 vha->flags.management_server_logged_in = 0;
868 break;
869
870 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
871 if (IS_QLA2100(ha))
872 break;
873
874 ql_dbg(ql_dbg_async, vha, 0x500f,
875 "Configuration change detected: value=%x.\n", mb[1]);
876
877 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
878 atomic_set(&vha->loop_state, LOOP_DOWN);
879 if (!atomic_read(&vha->loop_down_timer))
880 atomic_set(&vha->loop_down_timer,
881 LOOP_DOWN_TIME);
882 qla2x00_mark_all_devices_lost(vha, 1);
883 }
884
885 if (vha->vp_idx) {
886 atomic_set(&vha->vp_state, VP_FAILED);
887 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
888 }
889
890 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
891 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
892 break;
893
894 case MBA_PORT_UPDATE: /* Port database update */
895 /*
896 * Handle only global and vn-port update events
897 *
898 * Relevant inputs:
899 * mb[1] = N_Port handle of changed port
900 * OR 0xffff for global event
901 * mb[2] = New login state
902 * 7 = Port logged out
903 * mb[3] = LSB is vp_idx, 0xff = all vps
904 *
905 * Skip processing if:
906 * Event is global, vp_idx is NOT all vps,
907 * vp_idx does not match
908 * Event is not global, vp_idx does not match
909 */
910 if (IS_QLA2XXX_MIDTYPE(ha) &&
911 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
912 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
913 break;
914
915 if (mb[2] == 0x7) {
916 ql_dbg(ql_dbg_async, vha, 0x5010,
917 "Port %s %04x %04x %04x.\n",
918 mb[1] == 0xffff ? "unavailable" : "logout",
919 mb[1], mb[2], mb[3]);
920
921 if (mb[1] == 0xffff)
922 goto global_port_update;
923
924 /* Port logout */
925 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
926 if (!fcport)
927 break;
928 if (atomic_read(&fcport->state) != FCS_ONLINE)
929 break;
930 ql_dbg(ql_dbg_async, vha, 0x508a,
931 "Marking port lost loopid=%04x portid=%06x.\n",
932 fcport->loop_id, fcport->d_id.b24);
933 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
934 break;
935
936global_port_update:
937 /* Port unavailable. */
938 ql_log(ql_log_warn, vha, 0x505e,
939 "Link is offline.\n");
940
941 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
942 atomic_set(&vha->loop_state, LOOP_DOWN);
943 atomic_set(&vha->loop_down_timer,
944 LOOP_DOWN_TIME);
945 vha->device_flags |= DFLG_NO_CABLE;
946 qla2x00_mark_all_devices_lost(vha, 1);
947 }
948
949 if (vha->vp_idx) {
950 atomic_set(&vha->vp_state, VP_FAILED);
951 fc_vport_set_state(vha->fc_vport,
952 FC_VPORT_FAILED);
953 qla2x00_mark_all_devices_lost(vha, 1);
954 }
955
956 vha->flags.management_server_logged_in = 0;
957 ha->link_data_rate = PORT_SPEED_UNKNOWN;
958 break;
959 }
960
961 /*
962 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
963 * event etc. earlier indicating loop is down) then process
964 * it. Otherwise ignore it and Wait for RSCN to come in.
965 */
966 atomic_set(&vha->loop_down_timer, 0);
967 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
968 atomic_read(&vha->loop_state) != LOOP_DEAD) {
969 ql_dbg(ql_dbg_async, vha, 0x5011,
970 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
971 mb[1], mb[2], mb[3]);
972
973 qlt_async_event(mb[0], vha, mb);
974 break;
975 }
976
977 ql_dbg(ql_dbg_async, vha, 0x5012,
978 "Port database changed %04x %04x %04x.\n",
979 mb[1], mb[2], mb[3]);
980
981 /*
982 * Mark all devices as missing so we will login again.
983 */
984 atomic_set(&vha->loop_state, LOOP_UP);
985
986 qla2x00_mark_all_devices_lost(vha, 1);
987
988 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha))
989 set_bit(SCR_PENDING, &vha->dpc_flags);
990
991 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
992 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
993 set_bit(VP_CONFIG_OK, &vha->vp_flags);
994
995 qlt_async_event(mb[0], vha, mb);
996 break;
997
998 case MBA_RSCN_UPDATE: /* State Change Registration */
999 /* Check if the Vport has issued a SCR */
1000 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1001 break;
1002 /* Only handle SCNs for our Vport index. */
1003 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1004 break;
1005
1006 ql_dbg(ql_dbg_async, vha, 0x5013,
1007 "RSCN database changed -- %04x %04x %04x.\n",
1008 mb[1], mb[2], mb[3]);
1009
1010 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1011 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1012 | vha->d_id.b.al_pa;
1013 if (rscn_entry == host_pid) {
1014 ql_dbg(ql_dbg_async, vha, 0x5014,
1015 "Ignoring RSCN update to local host "
1016 "port ID (%06x).\n", host_pid);
1017 break;
1018 }
1019
1020 /* Ignore reserved bits from RSCN-payload. */
1021 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1022
1023 /* Skip RSCNs for virtual ports on the same physical port */
1024 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1025 break;
1026
1027 /*
1028 * Search for the rport related to this RSCN entry and mark it
1029 * as lost.
1030 */
1031 list_for_each_entry(fcport, &vha->vp_fcports, list) {
1032 if (atomic_read(&fcport->state) != FCS_ONLINE)
1033 continue;
1034 if (fcport->d_id.b24 == rscn_entry) {
1035 qla2x00_mark_device_lost(vha, fcport, 0, 0);
1036 break;
1037 }
1038 }
1039
1040 atomic_set(&vha->loop_down_timer, 0);
1041 vha->flags.management_server_logged_in = 0;
1042
1043 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1044 set_bit(RSCN_UPDATE, &vha->dpc_flags);
1045 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1046 break;
1047
1048 /* case MBA_RIO_RESPONSE: */
1049 case MBA_ZIO_RESPONSE:
1050 ql_dbg(ql_dbg_async, vha, 0x5015,
1051 "[R|Z]IO update completion.\n");
1052
1053 if (IS_FWI2_CAPABLE(ha))
1054 qla24xx_process_response_queue(vha, rsp);
1055 else
1056 qla2x00_process_response_queue(rsp);
1057 break;
1058
1059 case MBA_DISCARD_RND_FRAME:
1060 ql_dbg(ql_dbg_async, vha, 0x5016,
1061 "Discard RND Frame -- %04x %04x %04x.\n",
1062 mb[1], mb[2], mb[3]);
1063 break;
1064
1065 case MBA_TRACE_NOTIFICATION:
1066 ql_dbg(ql_dbg_async, vha, 0x5017,
1067 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1068 break;
1069
1070 case MBA_ISP84XX_ALERT:
1071 ql_dbg(ql_dbg_async, vha, 0x5018,
1072 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1073 mb[1], mb[2], mb[3]);
1074
1075 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1076 switch (mb[1]) {
1077 case A84_PANIC_RECOVERY:
1078 ql_log(ql_log_info, vha, 0x5019,
1079 "Alert 84XX: panic recovery %04x %04x.\n",
1080 mb[2], mb[3]);
1081 break;
1082 case A84_OP_LOGIN_COMPLETE:
1083 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1084 ql_log(ql_log_info, vha, 0x501a,
1085 "Alert 84XX: firmware version %x.\n",
1086 ha->cs84xx->op_fw_version);
1087 break;
1088 case A84_DIAG_LOGIN_COMPLETE:
1089 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1090 ql_log(ql_log_info, vha, 0x501b,
1091 "Alert 84XX: diagnostic firmware version %x.\n",
1092 ha->cs84xx->diag_fw_version);
1093 break;
1094 case A84_GOLD_LOGIN_COMPLETE:
1095 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1096 ha->cs84xx->fw_update = 1;
1097 ql_log(ql_log_info, vha, 0x501c,
1098 "Alert 84XX: gold firmware version %x.\n",
1099 ha->cs84xx->gold_fw_version);
1100 break;
1101 default:
1102 ql_log(ql_log_warn, vha, 0x501d,
1103 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1104 mb[1], mb[2], mb[3]);
1105 }
1106 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1107 break;
1108 case MBA_DCBX_START:
1109 ql_dbg(ql_dbg_async, vha, 0x501e,
1110 "DCBX Started -- %04x %04x %04x.\n",
1111 mb[1], mb[2], mb[3]);
1112 break;
1113 case MBA_DCBX_PARAM_UPDATE:
1114 ql_dbg(ql_dbg_async, vha, 0x501f,
1115 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1116 mb[1], mb[2], mb[3]);
1117 break;
1118 case MBA_FCF_CONF_ERR:
1119 ql_dbg(ql_dbg_async, vha, 0x5020,
1120 "FCF Configuration Error -- %04x %04x %04x.\n",
1121 mb[1], mb[2], mb[3]);
1122 break;
1123 case MBA_IDC_NOTIFY:
1124 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1125 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1126 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1127 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1128 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1129 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1130 /*
1131 * Extend loop down timer since port is active.
1132 */
1133 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1134 atomic_set(&vha->loop_down_timer,
1135 LOOP_DOWN_TIME);
1136 qla2xxx_wake_dpc(vha);
1137 }
1138 }
1139 case MBA_IDC_COMPLETE:
1140 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1141 complete(&ha->lb_portup_comp);
1142 /* Fallthru */
1143 case MBA_IDC_TIME_EXT:
1144 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1145 IS_QLA8044(ha))
1146 qla81xx_idc_event(vha, mb[0], mb[1]);
1147 break;
1148
1149 case MBA_IDC_AEN:
1150 mb[4] = RD_REG_WORD(&reg24->mailbox4);
1151 mb[5] = RD_REG_WORD(&reg24->mailbox5);
1152 mb[6] = RD_REG_WORD(&reg24->mailbox6);
1153 mb[7] = RD_REG_WORD(&reg24->mailbox7);
1154 qla83xx_handle_8200_aen(vha, mb);
1155 break;
1156
1157 case MBA_DPORT_DIAGNOSTICS:
1158 ql_dbg(ql_dbg_async, vha, 0x5052,
1159 "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1],
1160 mb[1] == 0 ? "start" :
1161 mb[1] == 1 ? "done (ok)" :
1162 mb[1] == 2 ? "done (error)" : "other");
1163 break;
1164
1165 default:
1166 ql_dbg(ql_dbg_async, vha, 0x5057,
1167 "Unknown AEN:%04x %04x %04x %04x\n",
1168 mb[0], mb[1], mb[2], mb[3]);
1169 }
1170
1171 qlt_async_event(mb[0], vha, mb);
1172
1173 if (!vha->vp_idx && ha->num_vhosts)
1174 qla2x00_alert_all_vps(rsp, mb);
1175}
1176
1177/**
1178 * qla2x00_process_completed_request() - Process a Fast Post response.
1179 * @ha: SCSI driver HA context
1180 * @index: SRB index
1181 */
1182void
1183qla2x00_process_completed_request(struct scsi_qla_host *vha,
1184 struct req_que *req, uint32_t index)
1185{
1186 srb_t *sp;
1187 struct qla_hw_data *ha = vha->hw;
1188
1189 /* Validate handle. */
1190 if (index >= req->num_outstanding_cmds) {
1191 ql_log(ql_log_warn, vha, 0x3014,
1192 "Invalid SCSI command index (%x).\n", index);
1193
1194 if (IS_P3P_TYPE(ha))
1195 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1196 else
1197 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1198 return;
1199 }
1200
1201 sp = req->outstanding_cmds[index];
1202 if (sp) {
1203 /* Free outstanding command slot. */
1204 req->outstanding_cmds[index] = NULL;
1205
1206 /* Save ISP completion status */
1207 sp->done(ha, sp, DID_OK << 16);
1208 } else {
1209 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1210
1211 if (IS_P3P_TYPE(ha))
1212 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1213 else
1214 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1215 }
1216}
1217
1218srb_t *
1219qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1220 struct req_que *req, void *iocb)
1221{
1222 struct qla_hw_data *ha = vha->hw;
1223 sts_entry_t *pkt = iocb;
1224 srb_t *sp = NULL;
1225 uint16_t index;
1226
1227 index = LSW(pkt->handle);
1228 if (index >= req->num_outstanding_cmds) {
1229 ql_log(ql_log_warn, vha, 0x5031,
1230 "Invalid command index (%x).\n", index);
1231 if (IS_P3P_TYPE(ha))
1232 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1233 else
1234 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1235 goto done;
1236 }
1237 sp = req->outstanding_cmds[index];
1238 if (!sp) {
1239 ql_log(ql_log_warn, vha, 0x5032,
1240 "Invalid completion handle (%x) -- timed-out.\n", index);
1241 return sp;
1242 }
1243 if (sp->handle != index) {
1244 ql_log(ql_log_warn, vha, 0x5033,
1245 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1246 return NULL;
1247 }
1248
1249 req->outstanding_cmds[index] = NULL;
1250
1251done:
1252 return sp;
1253}
1254
1255static void
1256qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1257 struct mbx_entry *mbx)
1258{
1259 const char func[] = "MBX-IOCB";
1260 const char *type;
1261 fc_port_t *fcport;
1262 srb_t *sp;
1263 struct srb_iocb *lio;
1264 uint16_t *data;
1265 uint16_t status;
1266
1267 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1268 if (!sp)
1269 return;
1270
1271 lio = &sp->u.iocb_cmd;
1272 type = sp->name;
1273 fcport = sp->fcport;
1274 data = lio->u.logio.data;
1275
1276 data[0] = MBS_COMMAND_ERROR;
1277 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1278 QLA_LOGIO_LOGIN_RETRIED : 0;
1279 if (mbx->entry_status) {
1280 ql_dbg(ql_dbg_async, vha, 0x5043,
1281 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1282 "entry-status=%x status=%x state-flag=%x "
1283 "status-flags=%x.\n", type, sp->handle,
1284 fcport->d_id.b.domain, fcport->d_id.b.area,
1285 fcport->d_id.b.al_pa, mbx->entry_status,
1286 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1287 le16_to_cpu(mbx->status_flags));
1288
1289 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1290 (uint8_t *)mbx, sizeof(*mbx));
1291
1292 goto logio_done;
1293 }
1294
1295 status = le16_to_cpu(mbx->status);
1296 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1297 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1298 status = 0;
1299 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1300 ql_dbg(ql_dbg_async, vha, 0x5045,
1301 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1302 type, sp->handle, fcport->d_id.b.domain,
1303 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1304 le16_to_cpu(mbx->mb1));
1305
1306 data[0] = MBS_COMMAND_COMPLETE;
1307 if (sp->type == SRB_LOGIN_CMD) {
1308 fcport->port_type = FCT_TARGET;
1309 if (le16_to_cpu(mbx->mb1) & BIT_0)
1310 fcport->port_type = FCT_INITIATOR;
1311 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1312 fcport->flags |= FCF_FCP2_DEVICE;
1313 }
1314 goto logio_done;
1315 }
1316
1317 data[0] = le16_to_cpu(mbx->mb0);
1318 switch (data[0]) {
1319 case MBS_PORT_ID_USED:
1320 data[1] = le16_to_cpu(mbx->mb1);
1321 break;
1322 case MBS_LOOP_ID_USED:
1323 break;
1324 default:
1325 data[0] = MBS_COMMAND_ERROR;
1326 break;
1327 }
1328
1329 ql_log(ql_log_warn, vha, 0x5046,
1330 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1331 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1332 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1333 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1334 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1335 le16_to_cpu(mbx->mb7));
1336
1337logio_done:
1338 sp->done(vha, sp, 0);
1339}
1340
1341static void
1342qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1343 sts_entry_t *pkt, int iocb_type)
1344{
1345 const char func[] = "CT_IOCB";
1346 const char *type;
1347 srb_t *sp;
1348 struct fc_bsg_job *bsg_job;
1349 uint16_t comp_status;
1350 int res;
1351
1352 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1353 if (!sp)
1354 return;
1355
1356 bsg_job = sp->u.bsg_job;
1357
1358 type = "ct pass-through";
1359
1360 comp_status = le16_to_cpu(pkt->comp_status);
1361
1362 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1363 * fc payload to the caller
1364 */
1365 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1366 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1367
1368 if (comp_status != CS_COMPLETE) {
1369 if (comp_status == CS_DATA_UNDERRUN) {
1370 res = DID_OK << 16;
1371 bsg_job->reply->reply_payload_rcv_len =
1372 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len);
1373
1374 ql_log(ql_log_warn, vha, 0x5048,
1375 "CT pass-through-%s error "
1376 "comp_status-status=0x%x total_byte = 0x%x.\n",
1377 type, comp_status,
1378 bsg_job->reply->reply_payload_rcv_len);
1379 } else {
1380 ql_log(ql_log_warn, vha, 0x5049,
1381 "CT pass-through-%s error "
1382 "comp_status-status=0x%x.\n", type, comp_status);
1383 res = DID_ERROR << 16;
1384 bsg_job->reply->reply_payload_rcv_len = 0;
1385 }
1386 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1387 (uint8_t *)pkt, sizeof(*pkt));
1388 } else {
1389 res = DID_OK << 16;
1390 bsg_job->reply->reply_payload_rcv_len =
1391 bsg_job->reply_payload.payload_len;
1392 bsg_job->reply_len = 0;
1393 }
1394
1395 sp->done(vha, sp, res);
1396}
1397
1398static void
1399qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1400 struct sts_entry_24xx *pkt, int iocb_type)
1401{
1402 const char func[] = "ELS_CT_IOCB";
1403 const char *type;
1404 srb_t *sp;
1405 struct fc_bsg_job *bsg_job;
1406 uint16_t comp_status;
1407 uint32_t fw_status[3];
1408 uint8_t* fw_sts_ptr;
1409 int res;
1410
1411 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1412 if (!sp)
1413 return;
1414 bsg_job = sp->u.bsg_job;
1415
1416 type = NULL;
1417 switch (sp->type) {
1418 case SRB_ELS_CMD_RPT:
1419 case SRB_ELS_CMD_HST:
1420 type = "els";
1421 break;
1422 case SRB_CT_CMD:
1423 type = "ct pass-through";
1424 break;
1425 case SRB_ELS_DCMD:
1426 type = "Driver ELS logo";
1427 ql_dbg(ql_dbg_user, vha, 0x5047,
1428 "Completing %s: (%p) type=%d.\n", type, sp, sp->type);
1429 sp->done(vha, sp, 0);
1430 return;
1431 default:
1432 ql_dbg(ql_dbg_user, vha, 0x503e,
1433 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1434 return;
1435 }
1436
1437 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1438 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1);
1439 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2);
1440
1441 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1442 * fc payload to the caller
1443 */
1444 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1445 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1446
1447 if (comp_status != CS_COMPLETE) {
1448 if (comp_status == CS_DATA_UNDERRUN) {
1449 res = DID_OK << 16;
1450 bsg_job->reply->reply_payload_rcv_len =
1451 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1452
1453 ql_dbg(ql_dbg_user, vha, 0x503f,
1454 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1455 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1456 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1457 le16_to_cpu(((struct els_sts_entry_24xx *)
1458 pkt)->total_byte_count));
1459 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1460 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1461 }
1462 else {
1463 ql_dbg(ql_dbg_user, vha, 0x5040,
1464 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1465 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1466 type, sp->handle, comp_status,
1467 le16_to_cpu(((struct els_sts_entry_24xx *)
1468 pkt)->error_subcode_1),
1469 le16_to_cpu(((struct els_sts_entry_24xx *)
1470 pkt)->error_subcode_2));
1471 res = DID_ERROR << 16;
1472 bsg_job->reply->reply_payload_rcv_len = 0;
1473 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
1474 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status));
1475 }
1476 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1477 (uint8_t *)pkt, sizeof(*pkt));
1478 }
1479 else {
1480 res = DID_OK << 16;
1481 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1482 bsg_job->reply_len = 0;
1483 }
1484
1485 sp->done(vha, sp, res);
1486}
1487
1488static void
1489qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1490 struct logio_entry_24xx *logio)
1491{
1492 const char func[] = "LOGIO-IOCB";
1493 const char *type;
1494 fc_port_t *fcport;
1495 srb_t *sp;
1496 struct srb_iocb *lio;
1497 uint16_t *data;
1498 uint32_t iop[2];
1499
1500 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1501 if (!sp)
1502 return;
1503
1504 lio = &sp->u.iocb_cmd;
1505 type = sp->name;
1506 fcport = sp->fcport;
1507 data = lio->u.logio.data;
1508
1509 data[0] = MBS_COMMAND_ERROR;
1510 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1511 QLA_LOGIO_LOGIN_RETRIED : 0;
1512 if (logio->entry_status) {
1513 ql_log(ql_log_warn, fcport->vha, 0x5034,
1514 "Async-%s error entry - hdl=%x"
1515 "portid=%02x%02x%02x entry-status=%x.\n",
1516 type, sp->handle, fcport->d_id.b.domain,
1517 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1518 logio->entry_status);
1519 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1520 (uint8_t *)logio, sizeof(*logio));
1521
1522 goto logio_done;
1523 }
1524
1525 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1526 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1527 "Async-%s complete - hdl=%x portid=%02x%02x%02x "
1528 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1529 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1530 le32_to_cpu(logio->io_parameter[0]));
1531
1532 data[0] = MBS_COMMAND_COMPLETE;
1533 if (sp->type != SRB_LOGIN_CMD)
1534 goto logio_done;
1535
1536 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1537 if (iop[0] & BIT_4) {
1538 fcport->port_type = FCT_TARGET;
1539 if (iop[0] & BIT_8)
1540 fcport->flags |= FCF_FCP2_DEVICE;
1541 } else if (iop[0] & BIT_5)
1542 fcport->port_type = FCT_INITIATOR;
1543
1544 if (iop[0] & BIT_7)
1545 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1546
1547 if (logio->io_parameter[7] || logio->io_parameter[8])
1548 fcport->supported_classes |= FC_COS_CLASS2;
1549 if (logio->io_parameter[9] || logio->io_parameter[10])
1550 fcport->supported_classes |= FC_COS_CLASS3;
1551
1552 goto logio_done;
1553 }
1554
1555 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1556 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1557 switch (iop[0]) {
1558 case LSC_SCODE_PORTID_USED:
1559 data[0] = MBS_PORT_ID_USED;
1560 data[1] = LSW(iop[1]);
1561 break;
1562 case LSC_SCODE_NPORT_USED:
1563 data[0] = MBS_LOOP_ID_USED;
1564 break;
1565 default:
1566 data[0] = MBS_COMMAND_ERROR;
1567 break;
1568 }
1569
1570 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1571 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
1572 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
1573 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1574 le16_to_cpu(logio->comp_status),
1575 le32_to_cpu(logio->io_parameter[0]),
1576 le32_to_cpu(logio->io_parameter[1]));
1577
1578logio_done:
1579 sp->done(vha, sp, 0);
1580}
1581
1582static void
1583qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1584{
1585 const char func[] = "TMF-IOCB";
1586 const char *type;
1587 fc_port_t *fcport;
1588 srb_t *sp;
1589 struct srb_iocb *iocb;
1590 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1591
1592 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1593 if (!sp)
1594 return;
1595
1596 iocb = &sp->u.iocb_cmd;
1597 type = sp->name;
1598 fcport = sp->fcport;
1599 iocb->u.tmf.data = QLA_SUCCESS;
1600
1601 if (sts->entry_status) {
1602 ql_log(ql_log_warn, fcport->vha, 0x5038,
1603 "Async-%s error - hdl=%x entry-status(%x).\n",
1604 type, sp->handle, sts->entry_status);
1605 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1606 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1607 ql_log(ql_log_warn, fcport->vha, 0x5039,
1608 "Async-%s error - hdl=%x completion status(%x).\n",
1609 type, sp->handle, sts->comp_status);
1610 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1611 } else if ((le16_to_cpu(sts->scsi_status) &
1612 SS_RESPONSE_INFO_LEN_VALID)) {
1613 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1614 ql_log(ql_log_warn, fcport->vha, 0x503b,
1615 "Async-%s error - hdl=%x not enough response(%d).\n",
1616 type, sp->handle, sts->rsp_data_len);
1617 } else if (sts->data[3]) {
1618 ql_log(ql_log_warn, fcport->vha, 0x503c,
1619 "Async-%s error - hdl=%x response(%x).\n",
1620 type, sp->handle, sts->data[3]);
1621 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1622 }
1623 }
1624
1625 if (iocb->u.tmf.data != QLA_SUCCESS)
1626 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055,
1627 (uint8_t *)sts, sizeof(*sts));
1628
1629 sp->done(vha, sp, 0);
1630}
1631
1632/**
1633 * qla2x00_process_response_queue() - Process response queue entries.
1634 * @ha: SCSI driver HA context
1635 */
1636void
1637qla2x00_process_response_queue(struct rsp_que *rsp)
1638{
1639 struct scsi_qla_host *vha;
1640 struct qla_hw_data *ha = rsp->hw;
1641 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1642 sts_entry_t *pkt;
1643 uint16_t handle_cnt;
1644 uint16_t cnt;
1645
1646 vha = pci_get_drvdata(ha->pdev);
1647
1648 if (!vha->flags.online)
1649 return;
1650
1651 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
1652 pkt = (sts_entry_t *)rsp->ring_ptr;
1653
1654 rsp->ring_index++;
1655 if (rsp->ring_index == rsp->length) {
1656 rsp->ring_index = 0;
1657 rsp->ring_ptr = rsp->ring;
1658 } else {
1659 rsp->ring_ptr++;
1660 }
1661
1662 if (pkt->entry_status != 0) {
1663 qla2x00_error_entry(vha, rsp, pkt);
1664 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1665 wmb();
1666 continue;
1667 }
1668
1669 switch (pkt->entry_type) {
1670 case STATUS_TYPE:
1671 qla2x00_status_entry(vha, rsp, pkt);
1672 break;
1673 case STATUS_TYPE_21:
1674 handle_cnt = ((sts21_entry_t *)pkt)->handle_count;
1675 for (cnt = 0; cnt < handle_cnt; cnt++) {
1676 qla2x00_process_completed_request(vha, rsp->req,
1677 ((sts21_entry_t *)pkt)->handle[cnt]);
1678 }
1679 break;
1680 case STATUS_TYPE_22:
1681 handle_cnt = ((sts22_entry_t *)pkt)->handle_count;
1682 for (cnt = 0; cnt < handle_cnt; cnt++) {
1683 qla2x00_process_completed_request(vha, rsp->req,
1684 ((sts22_entry_t *)pkt)->handle[cnt]);
1685 }
1686 break;
1687 case STATUS_CONT_TYPE:
1688 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
1689 break;
1690 case MBX_IOCB_TYPE:
1691 qla2x00_mbx_iocb_entry(vha, rsp->req,
1692 (struct mbx_entry *)pkt);
1693 break;
1694 case CT_IOCB_TYPE:
1695 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
1696 break;
1697 default:
1698 /* Type Not Supported. */
1699 ql_log(ql_log_warn, vha, 0x504a,
1700 "Received unknown response pkt type %x "
1701 "entry status=%x.\n",
1702 pkt->entry_type, pkt->entry_status);
1703 break;
1704 }
1705 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
1706 wmb();
1707 }
1708
1709 /* Adjust ring index */
1710 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
1711}
1712
1713static inline void
1714qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
1715 uint32_t sense_len, struct rsp_que *rsp, int res)
1716{
1717 struct scsi_qla_host *vha = sp->fcport->vha;
1718 struct scsi_cmnd *cp = GET_CMD_SP(sp);
1719 uint32_t track_sense_len;
1720
1721 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
1722 sense_len = SCSI_SENSE_BUFFERSIZE;
1723
1724 SET_CMD_SENSE_LEN(sp, sense_len);
1725 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
1726 track_sense_len = sense_len;
1727
1728 if (sense_len > par_sense_len)
1729 sense_len = par_sense_len;
1730
1731 memcpy(cp->sense_buffer, sense_data, sense_len);
1732
1733 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
1734 track_sense_len -= sense_len;
1735 SET_CMD_SENSE_LEN(sp, track_sense_len);
1736
1737 if (track_sense_len != 0) {
1738 rsp->status_srb = sp;
1739 cp->result = res;
1740 }
1741
1742 if (sense_len) {
1743 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
1744 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
1745 sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
1746 cp);
1747 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
1748 cp->sense_buffer, sense_len);
1749 }
1750}
1751
1752struct scsi_dif_tuple {
1753 __be16 guard; /* Checksum */
1754 __be16 app_tag; /* APPL identifier */
1755 __be32 ref_tag; /* Target LBA or indirect LBA */
1756};
1757
1758/*
1759 * Checks the guard or meta-data for the type of error
1760 * detected by the HBA. In case of errors, we set the
1761 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
1762 * to indicate to the kernel that the HBA detected error.
1763 */
1764static inline int
1765qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
1766{
1767 struct scsi_qla_host *vha = sp->fcport->vha;
1768 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1769 uint8_t *ap = &sts24->data[12];
1770 uint8_t *ep = &sts24->data[20];
1771 uint32_t e_ref_tag, a_ref_tag;
1772 uint16_t e_app_tag, a_app_tag;
1773 uint16_t e_guard, a_guard;
1774
1775 /*
1776 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
1777 * would make guard field appear at offset 2
1778 */
1779 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
1780 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
1781 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
1782 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
1783 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
1784 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
1785
1786 ql_dbg(ql_dbg_io, vha, 0x3023,
1787 "iocb(s) %p Returned STATUS.\n", sts24);
1788
1789 ql_dbg(ql_dbg_io, vha, 0x3024,
1790 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
1791 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
1792 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
1793 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
1794 a_app_tag, e_app_tag, a_guard, e_guard);
1795
1796 /*
1797 * Ignore sector if:
1798 * For type 3: ref & app tag is all 'f's
1799 * For type 0,1,2: app tag is all 'f's
1800 */
1801 if ((a_app_tag == 0xffff) &&
1802 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
1803 (a_ref_tag == 0xffffffff))) {
1804 uint32_t blocks_done, resid;
1805 sector_t lba_s = scsi_get_lba(cmd);
1806
1807 /* 2TB boundary case covered automatically with this */
1808 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
1809
1810 resid = scsi_bufflen(cmd) - (blocks_done *
1811 cmd->device->sector_size);
1812
1813 scsi_set_resid(cmd, resid);
1814 cmd->result = DID_OK << 16;
1815
1816 /* Update protection tag */
1817 if (scsi_prot_sg_count(cmd)) {
1818 uint32_t i, j = 0, k = 0, num_ent;
1819 struct scatterlist *sg;
1820 struct sd_dif_tuple *spt;
1821
1822 /* Patch the corresponding protection tags */
1823 scsi_for_each_prot_sg(cmd, sg,
1824 scsi_prot_sg_count(cmd), i) {
1825 num_ent = sg_dma_len(sg) / 8;
1826 if (k + num_ent < blocks_done) {
1827 k += num_ent;
1828 continue;
1829 }
1830 j = blocks_done - k - 1;
1831 k = blocks_done;
1832 break;
1833 }
1834
1835 if (k != blocks_done) {
1836 ql_log(ql_log_warn, vha, 0x302f,
1837 "unexpected tag values tag:lba=%x:%llx)\n",
1838 e_ref_tag, (unsigned long long)lba_s);
1839 return 1;
1840 }
1841
1842 spt = page_address(sg_page(sg)) + sg->offset;
1843 spt += j;
1844
1845 spt->app_tag = 0xffff;
1846 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
1847 spt->ref_tag = 0xffffffff;
1848 }
1849
1850 return 0;
1851 }
1852
1853 /* check guard */
1854 if (e_guard != a_guard) {
1855 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1856 0x10, 0x1);
1857 set_driver_byte(cmd, DRIVER_SENSE);
1858 set_host_byte(cmd, DID_ABORT);
1859 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1860 return 1;
1861 }
1862
1863 /* check ref tag */
1864 if (e_ref_tag != a_ref_tag) {
1865 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1866 0x10, 0x3);
1867 set_driver_byte(cmd, DRIVER_SENSE);
1868 set_host_byte(cmd, DID_ABORT);
1869 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1870 return 1;
1871 }
1872
1873 /* check appl tag */
1874 if (e_app_tag != a_app_tag) {
1875 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
1876 0x10, 0x2);
1877 set_driver_byte(cmd, DRIVER_SENSE);
1878 set_host_byte(cmd, DID_ABORT);
1879 cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
1880 return 1;
1881 }
1882
1883 return 1;
1884}
1885
1886static void
1887qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
1888 struct req_que *req, uint32_t index)
1889{
1890 struct qla_hw_data *ha = vha->hw;
1891 srb_t *sp;
1892 uint16_t comp_status;
1893 uint16_t scsi_status;
1894 uint16_t thread_id;
1895 uint32_t rval = EXT_STATUS_OK;
1896 struct fc_bsg_job *bsg_job = NULL;
1897 sts_entry_t *sts;
1898 struct sts_entry_24xx *sts24;
1899 sts = (sts_entry_t *) pkt;
1900 sts24 = (struct sts_entry_24xx *) pkt;
1901
1902 /* Validate handle. */
1903 if (index >= req->num_outstanding_cmds) {
1904 ql_log(ql_log_warn, vha, 0x70af,
1905 "Invalid SCSI completion handle 0x%x.\n", index);
1906 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1907 return;
1908 }
1909
1910 sp = req->outstanding_cmds[index];
1911 if (sp) {
1912 /* Free outstanding command slot. */
1913 req->outstanding_cmds[index] = NULL;
1914 bsg_job = sp->u.bsg_job;
1915 } else {
1916 ql_log(ql_log_warn, vha, 0x70b0,
1917 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
1918 req->id, index);
1919
1920 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1921 return;
1922 }
1923
1924 if (IS_FWI2_CAPABLE(ha)) {
1925 comp_status = le16_to_cpu(sts24->comp_status);
1926 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
1927 } else {
1928 comp_status = le16_to_cpu(sts->comp_status);
1929 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
1930 }
1931
1932 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1];
1933 switch (comp_status) {
1934 case CS_COMPLETE:
1935 if (scsi_status == 0) {
1936 bsg_job->reply->reply_payload_rcv_len =
1937 bsg_job->reply_payload.payload_len;
1938 vha->qla_stats.input_bytes +=
1939 bsg_job->reply->reply_payload_rcv_len;
1940 vha->qla_stats.input_requests++;
1941 rval = EXT_STATUS_OK;
1942 }
1943 goto done;
1944
1945 case CS_DATA_OVERRUN:
1946 ql_dbg(ql_dbg_user, vha, 0x70b1,
1947 "Command completed with date overrun thread_id=%d\n",
1948 thread_id);
1949 rval = EXT_STATUS_DATA_OVERRUN;
1950 break;
1951
1952 case CS_DATA_UNDERRUN:
1953 ql_dbg(ql_dbg_user, vha, 0x70b2,
1954 "Command completed with date underrun thread_id=%d\n",
1955 thread_id);
1956 rval = EXT_STATUS_DATA_UNDERRUN;
1957 break;
1958 case CS_BIDIR_RD_OVERRUN:
1959 ql_dbg(ql_dbg_user, vha, 0x70b3,
1960 "Command completed with read data overrun thread_id=%d\n",
1961 thread_id);
1962 rval = EXT_STATUS_DATA_OVERRUN;
1963 break;
1964
1965 case CS_BIDIR_RD_WR_OVERRUN:
1966 ql_dbg(ql_dbg_user, vha, 0x70b4,
1967 "Command completed with read and write data overrun "
1968 "thread_id=%d\n", thread_id);
1969 rval = EXT_STATUS_DATA_OVERRUN;
1970 break;
1971
1972 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
1973 ql_dbg(ql_dbg_user, vha, 0x70b5,
1974 "Command completed with read data over and write data "
1975 "underrun thread_id=%d\n", thread_id);
1976 rval = EXT_STATUS_DATA_OVERRUN;
1977 break;
1978
1979 case CS_BIDIR_RD_UNDERRUN:
1980 ql_dbg(ql_dbg_user, vha, 0x70b6,
1981 "Command completed with read data data underrun "
1982 "thread_id=%d\n", thread_id);
1983 rval = EXT_STATUS_DATA_UNDERRUN;
1984 break;
1985
1986 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
1987 ql_dbg(ql_dbg_user, vha, 0x70b7,
1988 "Command completed with read data under and write data "
1989 "overrun thread_id=%d\n", thread_id);
1990 rval = EXT_STATUS_DATA_UNDERRUN;
1991 break;
1992
1993 case CS_BIDIR_RD_WR_UNDERRUN:
1994 ql_dbg(ql_dbg_user, vha, 0x70b8,
1995 "Command completed with read and write data underrun "
1996 "thread_id=%d\n", thread_id);
1997 rval = EXT_STATUS_DATA_UNDERRUN;
1998 break;
1999
2000 case CS_BIDIR_DMA:
2001 ql_dbg(ql_dbg_user, vha, 0x70b9,
2002 "Command completed with data DMA error thread_id=%d\n",
2003 thread_id);
2004 rval = EXT_STATUS_DMA_ERR;
2005 break;
2006
2007 case CS_TIMEOUT:
2008 ql_dbg(ql_dbg_user, vha, 0x70ba,
2009 "Command completed with timeout thread_id=%d\n",
2010 thread_id);
2011 rval = EXT_STATUS_TIMEOUT;
2012 break;
2013 default:
2014 ql_dbg(ql_dbg_user, vha, 0x70bb,
2015 "Command completed with completion status=0x%x "
2016 "thread_id=%d\n", comp_status, thread_id);
2017 rval = EXT_STATUS_ERR;
2018 break;
2019 }
2020 bsg_job->reply->reply_payload_rcv_len = 0;
2021
2022done:
2023 /* Return the vendor specific reply to API */
2024 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2025 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2026 /* Always return DID_OK, bsg will send the vendor specific response
2027 * in this case only */
2028 sp->done(vha, sp, (DID_OK << 6));
2029
2030}
2031
2032/**
2033 * qla2x00_status_entry() - Process a Status IOCB entry.
2034 * @ha: SCSI driver HA context
2035 * @pkt: Entry pointer
2036 */
2037static void
2038qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2039{
2040 srb_t *sp;
2041 fc_port_t *fcport;
2042 struct scsi_cmnd *cp;
2043 sts_entry_t *sts;
2044 struct sts_entry_24xx *sts24;
2045 uint16_t comp_status;
2046 uint16_t scsi_status;
2047 uint16_t ox_id;
2048 uint8_t lscsi_status;
2049 int32_t resid;
2050 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2051 fw_resid_len;
2052 uint8_t *rsp_info, *sense_data;
2053 struct qla_hw_data *ha = vha->hw;
2054 uint32_t handle;
2055 uint16_t que;
2056 struct req_que *req;
2057 int logit = 1;
2058 int res = 0;
2059 uint16_t state_flags = 0;
2060 uint16_t retry_delay = 0;
2061
2062 sts = (sts_entry_t *) pkt;
2063 sts24 = (struct sts_entry_24xx *) pkt;
2064 if (IS_FWI2_CAPABLE(ha)) {
2065 comp_status = le16_to_cpu(sts24->comp_status);
2066 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2067 state_flags = le16_to_cpu(sts24->state_flags);
2068 } else {
2069 comp_status = le16_to_cpu(sts->comp_status);
2070 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2071 }
2072 handle = (uint32_t) LSW(sts->handle);
2073 que = MSW(sts->handle);
2074 req = ha->req_q_map[que];
2075
2076 /* Check for invalid queue pointer */
2077 if (req == NULL ||
2078 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2079 ql_dbg(ql_dbg_io, vha, 0x3059,
2080 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2081 "que=%u.\n", sts->handle, req, que);
2082 return;
2083 }
2084
2085 /* Validate handle. */
2086 if (handle < req->num_outstanding_cmds) {
2087 sp = req->outstanding_cmds[handle];
2088 if (!sp) {
2089 ql_dbg(ql_dbg_io, vha, 0x3075,
2090 "%s(%ld): Already returned command for status handle (0x%x).\n",
2091 __func__, vha->host_no, sts->handle);
2092 return;
2093 }
2094 } else {
2095 ql_dbg(ql_dbg_io, vha, 0x3017,
2096 "Invalid status handle, out of range (0x%x).\n",
2097 sts->handle);
2098
2099 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2100 if (IS_P3P_TYPE(ha))
2101 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2102 else
2103 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2104 qla2xxx_wake_dpc(vha);
2105 }
2106 return;
2107 }
2108
2109 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2110 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2111 return;
2112 }
2113
2114 /* Task Management completion. */
2115 if (sp->type == SRB_TM_CMD) {
2116 qla24xx_tm_iocb_entry(vha, req, pkt);
2117 return;
2118 }
2119
2120 /* Fast path completion. */
2121 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2122 qla2x00_process_completed_request(vha, req, handle);
2123
2124 return;
2125 }
2126
2127 req->outstanding_cmds[handle] = NULL;
2128 cp = GET_CMD_SP(sp);
2129 if (cp == NULL) {
2130 ql_dbg(ql_dbg_io, vha, 0x3018,
2131 "Command already returned (0x%x/%p).\n",
2132 sts->handle, sp);
2133
2134 return;
2135 }
2136
2137 lscsi_status = scsi_status & STATUS_MASK;
2138
2139 fcport = sp->fcport;
2140
2141 ox_id = 0;
2142 sense_len = par_sense_len = rsp_info_len = resid_len =
2143 fw_resid_len = 0;
2144 if (IS_FWI2_CAPABLE(ha)) {
2145 if (scsi_status & SS_SENSE_LEN_VALID)
2146 sense_len = le32_to_cpu(sts24->sense_len);
2147 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2148 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2149 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2150 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2151 if (comp_status == CS_DATA_UNDERRUN)
2152 fw_resid_len = le32_to_cpu(sts24->residual_len);
2153 rsp_info = sts24->data;
2154 sense_data = sts24->data;
2155 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2156 ox_id = le16_to_cpu(sts24->ox_id);
2157 par_sense_len = sizeof(sts24->data);
2158 /* Valid values of the retry delay timer are 0x1-0xffef */
2159 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1)
2160 retry_delay = sts24->retry_delay;
2161 } else {
2162 if (scsi_status & SS_SENSE_LEN_VALID)
2163 sense_len = le16_to_cpu(sts->req_sense_length);
2164 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2165 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2166 resid_len = le32_to_cpu(sts->residual_length);
2167 rsp_info = sts->rsp_info;
2168 sense_data = sts->req_sense_data;
2169 par_sense_len = sizeof(sts->req_sense_data);
2170 }
2171
2172 /* Check for any FCP transport errors. */
2173 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2174 /* Sense data lies beyond any FCP RESPONSE data. */
2175 if (IS_FWI2_CAPABLE(ha)) {
2176 sense_data += rsp_info_len;
2177 par_sense_len -= rsp_info_len;
2178 }
2179 if (rsp_info_len > 3 && rsp_info[3]) {
2180 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2181 "FCP I/O protocol failure (0x%x/0x%x).\n",
2182 rsp_info_len, rsp_info[3]);
2183
2184 res = DID_BUS_BUSY << 16;
2185 goto out;
2186 }
2187 }
2188
2189 /* Check for overrun. */
2190 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2191 scsi_status & SS_RESIDUAL_OVER)
2192 comp_status = CS_DATA_OVERRUN;
2193
2194 /*
2195 * Check retry_delay_timer value if we receive a busy or
2196 * queue full.
2197 */
2198 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2199 lscsi_status == SAM_STAT_BUSY)
2200 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2201
2202 /*
2203 * Based on Host and scsi status generate status code for Linux
2204 */
2205 switch (comp_status) {
2206 case CS_COMPLETE:
2207 case CS_QUEUE_FULL:
2208 if (scsi_status == 0) {
2209 res = DID_OK << 16;
2210 break;
2211 }
2212 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2213 resid = resid_len;
2214 scsi_set_resid(cp, resid);
2215
2216 if (!lscsi_status &&
2217 ((unsigned)(scsi_bufflen(cp) - resid) <
2218 cp->underflow)) {
2219 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2220 "Mid-layer underflow "
2221 "detected (0x%x of 0x%x bytes).\n",
2222 resid, scsi_bufflen(cp));
2223
2224 res = DID_ERROR << 16;
2225 break;
2226 }
2227 }
2228 res = DID_OK << 16 | lscsi_status;
2229
2230 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2231 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2232 "QUEUE FULL detected.\n");
2233 break;
2234 }
2235 logit = 0;
2236 if (lscsi_status != SS_CHECK_CONDITION)
2237 break;
2238
2239 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2240 if (!(scsi_status & SS_SENSE_LEN_VALID))
2241 break;
2242
2243 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2244 rsp, res);
2245 break;
2246
2247 case CS_DATA_UNDERRUN:
2248 /* Use F/W calculated residual length. */
2249 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2250 scsi_set_resid(cp, resid);
2251 if (scsi_status & SS_RESIDUAL_UNDER) {
2252 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2253 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2254 "Dropped frame(s) detected "
2255 "(0x%x of 0x%x bytes).\n",
2256 resid, scsi_bufflen(cp));
2257
2258 res = DID_ERROR << 16 | lscsi_status;
2259 goto check_scsi_status;
2260 }
2261
2262 if (!lscsi_status &&
2263 ((unsigned)(scsi_bufflen(cp) - resid) <
2264 cp->underflow)) {
2265 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2266 "Mid-layer underflow "
2267 "detected (0x%x of 0x%x bytes).\n",
2268 resid, scsi_bufflen(cp));
2269
2270 res = DID_ERROR << 16;
2271 break;
2272 }
2273 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2274 lscsi_status != SAM_STAT_BUSY) {
2275 /*
2276 * scsi status of task set and busy are considered to be
2277 * task not completed.
2278 */
2279
2280 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2281 "Dropped frame(s) detected (0x%x "
2282 "of 0x%x bytes).\n", resid,
2283 scsi_bufflen(cp));
2284
2285 res = DID_ERROR << 16 | lscsi_status;
2286 goto check_scsi_status;
2287 } else {
2288 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2289 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2290 scsi_status, lscsi_status);
2291 }
2292
2293 res = DID_OK << 16 | lscsi_status;
2294 logit = 0;
2295
2296check_scsi_status:
2297 /*
2298 * Check to see if SCSI Status is non zero. If so report SCSI
2299 * Status.
2300 */
2301 if (lscsi_status != 0) {
2302 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2303 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2304 "QUEUE FULL detected.\n");
2305 logit = 1;
2306 break;
2307 }
2308 if (lscsi_status != SS_CHECK_CONDITION)
2309 break;
2310
2311 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2312 if (!(scsi_status & SS_SENSE_LEN_VALID))
2313 break;
2314
2315 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2316 sense_len, rsp, res);
2317 }
2318 break;
2319
2320 case CS_PORT_LOGGED_OUT:
2321 case CS_PORT_CONFIG_CHG:
2322 case CS_PORT_BUSY:
2323 case CS_INCOMPLETE:
2324 case CS_PORT_UNAVAILABLE:
2325 case CS_TIMEOUT:
2326 case CS_RESET:
2327
2328 /*
2329 * We are going to have the fc class block the rport
2330 * while we try to recover so instruct the mid layer
2331 * to requeue until the class decides how to handle this.
2332 */
2333 res = DID_TRANSPORT_DISRUPTED << 16;
2334
2335 if (comp_status == CS_TIMEOUT) {
2336 if (IS_FWI2_CAPABLE(ha))
2337 break;
2338 else if ((le16_to_cpu(sts->status_flags) &
2339 SF_LOGOUT_SENT) == 0)
2340 break;
2341 }
2342
2343 ql_dbg(ql_dbg_io, fcport->vha, 0x3021,
2344 "Port to be marked lost on fcport=%02x%02x%02x, current "
2345 "port state= %s.\n", fcport->d_id.b.domain,
2346 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2347 port_state_str[atomic_read(&fcport->state)]);
2348
2349 if (atomic_read(&fcport->state) == FCS_ONLINE)
2350 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2351 break;
2352
2353 case CS_ABORTED:
2354 res = DID_RESET << 16;
2355 break;
2356
2357 case CS_DIF_ERROR:
2358 logit = qla2x00_handle_dif_error(sp, sts24);
2359 res = cp->result;
2360 break;
2361
2362 case CS_TRANSPORT:
2363 res = DID_ERROR << 16;
2364
2365 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2366 break;
2367
2368 if (state_flags & BIT_4)
2369 scmd_printk(KERN_WARNING, cp,
2370 "Unsupported device '%s' found.\n",
2371 cp->device->vendor);
2372 break;
2373
2374 default:
2375 res = DID_ERROR << 16;
2376 break;
2377 }
2378
2379out:
2380 if (logit)
2381 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2382 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2383 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2384 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2385 comp_status, scsi_status, res, vha->host_no,
2386 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2387 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2388 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2389 resid_len, fw_resid_len, sp, cp);
2390
2391 if (rsp->status_srb == NULL)
2392 sp->done(ha, sp, res);
2393}
2394
2395/**
2396 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2397 * @ha: SCSI driver HA context
2398 * @pkt: Entry pointer
2399 *
2400 * Extended sense data.
2401 */
2402static void
2403qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2404{
2405 uint8_t sense_sz = 0;
2406 struct qla_hw_data *ha = rsp->hw;
2407 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2408 srb_t *sp = rsp->status_srb;
2409 struct scsi_cmnd *cp;
2410 uint32_t sense_len;
2411 uint8_t *sense_ptr;
2412
2413 if (!sp || !GET_CMD_SENSE_LEN(sp))
2414 return;
2415
2416 sense_len = GET_CMD_SENSE_LEN(sp);
2417 sense_ptr = GET_CMD_SENSE_PTR(sp);
2418
2419 cp = GET_CMD_SP(sp);
2420 if (cp == NULL) {
2421 ql_log(ql_log_warn, vha, 0x3025,
2422 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2423
2424 rsp->status_srb = NULL;
2425 return;
2426 }
2427
2428 if (sense_len > sizeof(pkt->data))
2429 sense_sz = sizeof(pkt->data);
2430 else
2431 sense_sz = sense_len;
2432
2433 /* Move sense data. */
2434 if (IS_FWI2_CAPABLE(ha))
2435 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2436 memcpy(sense_ptr, pkt->data, sense_sz);
2437 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2438 sense_ptr, sense_sz);
2439
2440 sense_len -= sense_sz;
2441 sense_ptr += sense_sz;
2442
2443 SET_CMD_SENSE_PTR(sp, sense_ptr);
2444 SET_CMD_SENSE_LEN(sp, sense_len);
2445
2446 /* Place command on done queue. */
2447 if (sense_len == 0) {
2448 rsp->status_srb = NULL;
2449 sp->done(ha, sp, cp->result);
2450 }
2451}
2452
2453/**
2454 * qla2x00_error_entry() - Process an error entry.
2455 * @ha: SCSI driver HA context
2456 * @pkt: Entry pointer
2457 */
2458static void
2459qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2460{
2461 srb_t *sp;
2462 struct qla_hw_data *ha = vha->hw;
2463 const char func[] = "ERROR-IOCB";
2464 uint16_t que = MSW(pkt->handle);
2465 struct req_que *req = NULL;
2466 int res = DID_ERROR << 16;
2467
2468 ql_dbg(ql_dbg_async, vha, 0x502a,
2469 "type of error status in response: 0x%x\n", pkt->entry_status);
2470
2471 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2472 goto fatal;
2473
2474 req = ha->req_q_map[que];
2475
2476 if (pkt->entry_status & RF_BUSY)
2477 res = DID_BUS_BUSY << 16;
2478
2479 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2480 if (sp) {
2481 sp->done(ha, sp, res);
2482 return;
2483 }
2484fatal:
2485 ql_log(ql_log_warn, vha, 0x5030,
2486 "Error entry - invalid handle/queue (%04x).\n", que);
2487}
2488
2489/**
2490 * qla24xx_mbx_completion() - Process mailbox command completions.
2491 * @ha: SCSI driver HA context
2492 * @mb0: Mailbox0 register
2493 */
2494static void
2495qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2496{
2497 uint16_t cnt;
2498 uint32_t mboxes;
2499 uint16_t __iomem *wptr;
2500 struct qla_hw_data *ha = vha->hw;
2501 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2502
2503 /* Read all mbox registers? */
2504 mboxes = (1 << ha->mbx_count) - 1;
2505 if (!ha->mcp)
2506 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2507 else
2508 mboxes = ha->mcp->in_mb;
2509
2510 /* Load return mailbox registers. */
2511 ha->flags.mbox_int = 1;
2512 ha->mailbox_out[0] = mb0;
2513 mboxes >>= 1;
2514 wptr = (uint16_t __iomem *)&reg->mailbox1;
2515
2516 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2517 if (mboxes & BIT_0)
2518 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2519
2520 mboxes >>= 1;
2521 wptr++;
2522 }
2523}
2524
2525static void
2526qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2527 struct abort_entry_24xx *pkt)
2528{
2529 const char func[] = "ABT_IOCB";
2530 srb_t *sp;
2531 struct srb_iocb *abt;
2532
2533 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2534 if (!sp)
2535 return;
2536
2537 abt = &sp->u.iocb_cmd;
2538 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle);
2539 sp->done(vha, sp, 0);
2540}
2541
2542/**
2543 * qla24xx_process_response_queue() - Process response queue entries.
2544 * @ha: SCSI driver HA context
2545 */
2546void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2547 struct rsp_que *rsp)
2548{
2549 struct sts_entry_24xx *pkt;
2550 struct qla_hw_data *ha = vha->hw;
2551
2552 if (!vha->flags.online)
2553 return;
2554
2555 if (rsp->msix->cpuid != smp_processor_id()) {
2556 /* if kernel does not notify qla of IRQ's CPU change,
2557 * then set it here.
2558 */
2559 rsp->msix->cpuid = smp_processor_id();
2560 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid;
2561 }
2562
2563 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2564 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2565
2566 rsp->ring_index++;
2567 if (rsp->ring_index == rsp->length) {
2568 rsp->ring_index = 0;
2569 rsp->ring_ptr = rsp->ring;
2570 } else {
2571 rsp->ring_ptr++;
2572 }
2573
2574 if (pkt->entry_status != 0) {
2575 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
2576
2577 if (qlt_24xx_process_response_error(vha, pkt))
2578 goto process_err;
2579
2580 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2581 wmb();
2582 continue;
2583 }
2584process_err:
2585
2586 switch (pkt->entry_type) {
2587 case STATUS_TYPE:
2588 qla2x00_status_entry(vha, rsp, pkt);
2589 break;
2590 case STATUS_CONT_TYPE:
2591 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2592 break;
2593 case VP_RPT_ID_IOCB_TYPE:
2594 qla24xx_report_id_acquisition(vha,
2595 (struct vp_rpt_id_entry_24xx *)pkt);
2596 break;
2597 case LOGINOUT_PORT_IOCB_TYPE:
2598 qla24xx_logio_entry(vha, rsp->req,
2599 (struct logio_entry_24xx *)pkt);
2600 break;
2601 case CT_IOCB_TYPE:
2602 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2603 break;
2604 case ELS_IOCB_TYPE:
2605 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
2606 break;
2607 case ABTS_RECV_24XX:
2608 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
2609 /* ensure that the ATIO queue is empty */
2610 qlt_handle_abts_recv(vha, (response_t *)pkt);
2611 break;
2612 } else {
2613 /* drop through */
2614 qlt_24xx_process_atio_queue(vha, 1);
2615 }
2616 case ABTS_RESP_24XX:
2617 case CTIO_TYPE7:
2618 case NOTIFY_ACK_TYPE:
2619 case CTIO_CRC2:
2620 qlt_response_pkt_all_vps(vha, (response_t *)pkt);
2621 break;
2622 case MARKER_TYPE:
2623 /* Do nothing in this case, this check is to prevent it
2624 * from falling into default case
2625 */
2626 break;
2627 case ABORT_IOCB_TYPE:
2628 qla24xx_abort_iocb_entry(vha, rsp->req,
2629 (struct abort_entry_24xx *)pkt);
2630 break;
2631 default:
2632 /* Type Not Supported. */
2633 ql_dbg(ql_dbg_async, vha, 0x5042,
2634 "Received unknown response pkt type %x "
2635 "entry status=%x.\n",
2636 pkt->entry_type, pkt->entry_status);
2637 break;
2638 }
2639 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2640 wmb();
2641 }
2642
2643 /* Adjust ring index */
2644 if (IS_P3P_TYPE(ha)) {
2645 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
2646 WRT_REG_DWORD(&reg->rsp_q_out[0], rsp->ring_index);
2647 } else
2648 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
2649}
2650
2651static void
2652qla2xxx_check_risc_status(scsi_qla_host_t *vha)
2653{
2654 int rval;
2655 uint32_t cnt;
2656 struct qla_hw_data *ha = vha->hw;
2657 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2658
2659 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
2660 !IS_QLA27XX(ha))
2661 return;
2662
2663 rval = QLA_SUCCESS;
2664 WRT_REG_DWORD(&reg->iobase_addr, 0x7C00);
2665 RD_REG_DWORD(&reg->iobase_addr);
2666 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2667 for (cnt = 10000; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2668 rval == QLA_SUCCESS; cnt--) {
2669 if (cnt) {
2670 WRT_REG_DWORD(&reg->iobase_window, 0x0001);
2671 udelay(10);
2672 } else
2673 rval = QLA_FUNCTION_TIMEOUT;
2674 }
2675 if (rval == QLA_SUCCESS)
2676 goto next_test;
2677
2678 rval = QLA_SUCCESS;
2679 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2680 for (cnt = 100; (RD_REG_DWORD(&reg->iobase_window) & BIT_0) == 0 &&
2681 rval == QLA_SUCCESS; cnt--) {
2682 if (cnt) {
2683 WRT_REG_DWORD(&reg->iobase_window, 0x0003);
2684 udelay(10);
2685 } else
2686 rval = QLA_FUNCTION_TIMEOUT;
2687 }
2688 if (rval != QLA_SUCCESS)
2689 goto done;
2690
2691next_test:
2692 if (RD_REG_DWORD(&reg->iobase_c8) & BIT_3)
2693 ql_log(ql_log_info, vha, 0x504c,
2694 "Additional code -- 0x55AA.\n");
2695
2696done:
2697 WRT_REG_DWORD(&reg->iobase_window, 0x0000);
2698 RD_REG_DWORD(&reg->iobase_window);
2699}
2700
2701/**
2702 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
2703 * @irq:
2704 * @dev_id: SCSI driver HA context
2705 *
2706 * Called by system whenever the host adapter generates an interrupt.
2707 *
2708 * Returns handled flag.
2709 */
2710irqreturn_t
2711qla24xx_intr_handler(int irq, void *dev_id)
2712{
2713 scsi_qla_host_t *vha;
2714 struct qla_hw_data *ha;
2715 struct device_reg_24xx __iomem *reg;
2716 int status;
2717 unsigned long iter;
2718 uint32_t stat;
2719 uint32_t hccr;
2720 uint16_t mb[8];
2721 struct rsp_que *rsp;
2722 unsigned long flags;
2723
2724 rsp = (struct rsp_que *) dev_id;
2725 if (!rsp) {
2726 ql_log(ql_log_info, NULL, 0x5059,
2727 "%s: NULL response queue pointer.\n", __func__);
2728 return IRQ_NONE;
2729 }
2730
2731 ha = rsp->hw;
2732 reg = &ha->iobase->isp24;
2733 status = 0;
2734
2735 if (unlikely(pci_channel_offline(ha->pdev)))
2736 return IRQ_HANDLED;
2737
2738 spin_lock_irqsave(&ha->hardware_lock, flags);
2739 vha = pci_get_drvdata(ha->pdev);
2740 for (iter = 50; iter--; ) {
2741 stat = RD_REG_DWORD(&reg->host_status);
2742 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2743 break;
2744 if (stat & HSRX_RISC_PAUSED) {
2745 if (unlikely(pci_channel_offline(ha->pdev)))
2746 break;
2747
2748 hccr = RD_REG_DWORD(&reg->hccr);
2749
2750 ql_log(ql_log_warn, vha, 0x504b,
2751 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2752 hccr);
2753
2754 qla2xxx_check_risc_status(vha);
2755
2756 ha->isp_ops->fw_dump(vha, 1);
2757 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2758 break;
2759 } else if ((stat & HSRX_RISC_INT) == 0)
2760 break;
2761
2762 switch (stat & 0xff) {
2763 case INTR_ROM_MB_SUCCESS:
2764 case INTR_ROM_MB_FAILED:
2765 case INTR_MB_SUCCESS:
2766 case INTR_MB_FAILED:
2767 qla24xx_mbx_completion(vha, MSW(stat));
2768 status |= MBX_INTERRUPT;
2769
2770 break;
2771 case INTR_ASYNC_EVENT:
2772 mb[0] = MSW(stat);
2773 mb[1] = RD_REG_WORD(&reg->mailbox1);
2774 mb[2] = RD_REG_WORD(&reg->mailbox2);
2775 mb[3] = RD_REG_WORD(&reg->mailbox3);
2776 qla2x00_async_event(vha, rsp, mb);
2777 break;
2778 case INTR_RSP_QUE_UPDATE:
2779 case INTR_RSP_QUE_UPDATE_83XX:
2780 qla24xx_process_response_queue(vha, rsp);
2781 break;
2782 case INTR_ATIO_QUE_UPDATE:{
2783 unsigned long flags2;
2784 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2785 qlt_24xx_process_atio_queue(vha, 1);
2786 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2787 break;
2788 }
2789 case INTR_ATIO_RSP_QUE_UPDATE: {
2790 unsigned long flags2;
2791 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2792 qlt_24xx_process_atio_queue(vha, 1);
2793 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2794
2795 qla24xx_process_response_queue(vha, rsp);
2796 break;
2797 }
2798 default:
2799 ql_dbg(ql_dbg_async, vha, 0x504f,
2800 "Unrecognized interrupt type (%d).\n", stat * 0xff);
2801 break;
2802 }
2803 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2804 RD_REG_DWORD_RELAXED(&reg->hccr);
2805 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
2806 ndelay(3500);
2807 }
2808 qla2x00_handle_mbx_completion(ha, status);
2809 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2810
2811 return IRQ_HANDLED;
2812}
2813
2814static irqreturn_t
2815qla24xx_msix_rsp_q(int irq, void *dev_id)
2816{
2817 struct qla_hw_data *ha;
2818 struct rsp_que *rsp;
2819 struct device_reg_24xx __iomem *reg;
2820 struct scsi_qla_host *vha;
2821 unsigned long flags;
2822 uint32_t stat = 0;
2823
2824 rsp = (struct rsp_que *) dev_id;
2825 if (!rsp) {
2826 ql_log(ql_log_info, NULL, 0x505a,
2827 "%s: NULL response queue pointer.\n", __func__);
2828 return IRQ_NONE;
2829 }
2830 ha = rsp->hw;
2831 reg = &ha->iobase->isp24;
2832
2833 spin_lock_irqsave(&ha->hardware_lock, flags);
2834
2835 vha = pci_get_drvdata(ha->pdev);
2836 /*
2837 * Use host_status register to check to PCI disconnection before we
2838 * we process the response queue.
2839 */
2840 stat = RD_REG_DWORD(&reg->host_status);
2841 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2842 goto out;
2843 qla24xx_process_response_queue(vha, rsp);
2844 if (!ha->flags.disable_msix_handshake) {
2845 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2846 RD_REG_DWORD_RELAXED(&reg->hccr);
2847 }
2848out:
2849 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2850
2851 return IRQ_HANDLED;
2852}
2853
2854static irqreturn_t
2855qla25xx_msix_rsp_q(int irq, void *dev_id)
2856{
2857 struct qla_hw_data *ha;
2858 scsi_qla_host_t *vha;
2859 struct rsp_que *rsp;
2860 struct device_reg_24xx __iomem *reg;
2861 unsigned long flags;
2862 uint32_t hccr = 0;
2863
2864 rsp = (struct rsp_que *) dev_id;
2865 if (!rsp) {
2866 ql_log(ql_log_info, NULL, 0x505b,
2867 "%s: NULL response queue pointer.\n", __func__);
2868 return IRQ_NONE;
2869 }
2870 ha = rsp->hw;
2871 vha = pci_get_drvdata(ha->pdev);
2872
2873 /* Clear the interrupt, if enabled, for this response queue */
2874 if (!ha->flags.disable_msix_handshake) {
2875 reg = &ha->iobase->isp24;
2876 spin_lock_irqsave(&ha->hardware_lock, flags);
2877 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2878 hccr = RD_REG_DWORD_RELAXED(&reg->hccr);
2879 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2880 }
2881 if (qla2x00_check_reg32_for_disconnect(vha, hccr))
2882 goto out;
2883 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work);
2884
2885out:
2886 return IRQ_HANDLED;
2887}
2888
2889static irqreturn_t
2890qla24xx_msix_default(int irq, void *dev_id)
2891{
2892 scsi_qla_host_t *vha;
2893 struct qla_hw_data *ha;
2894 struct rsp_que *rsp;
2895 struct device_reg_24xx __iomem *reg;
2896 int status;
2897 uint32_t stat;
2898 uint32_t hccr;
2899 uint16_t mb[8];
2900 unsigned long flags;
2901
2902 rsp = (struct rsp_que *) dev_id;
2903 if (!rsp) {
2904 ql_log(ql_log_info, NULL, 0x505c,
2905 "%s: NULL response queue pointer.\n", __func__);
2906 return IRQ_NONE;
2907 }
2908 ha = rsp->hw;
2909 reg = &ha->iobase->isp24;
2910 status = 0;
2911
2912 spin_lock_irqsave(&ha->hardware_lock, flags);
2913 vha = pci_get_drvdata(ha->pdev);
2914 do {
2915 stat = RD_REG_DWORD(&reg->host_status);
2916 if (qla2x00_check_reg32_for_disconnect(vha, stat))
2917 break;
2918 if (stat & HSRX_RISC_PAUSED) {
2919 if (unlikely(pci_channel_offline(ha->pdev)))
2920 break;
2921
2922 hccr = RD_REG_DWORD(&reg->hccr);
2923
2924 ql_log(ql_log_info, vha, 0x5050,
2925 "RISC paused -- HCCR=%x, Dumping firmware.\n",
2926 hccr);
2927
2928 qla2xxx_check_risc_status(vha);
2929
2930 ha->isp_ops->fw_dump(vha, 1);
2931 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2932 break;
2933 } else if ((stat & HSRX_RISC_INT) == 0)
2934 break;
2935
2936 switch (stat & 0xff) {
2937 case INTR_ROM_MB_SUCCESS:
2938 case INTR_ROM_MB_FAILED:
2939 case INTR_MB_SUCCESS:
2940 case INTR_MB_FAILED:
2941 qla24xx_mbx_completion(vha, MSW(stat));
2942 status |= MBX_INTERRUPT;
2943
2944 break;
2945 case INTR_ASYNC_EVENT:
2946 mb[0] = MSW(stat);
2947 mb[1] = RD_REG_WORD(&reg->mailbox1);
2948 mb[2] = RD_REG_WORD(&reg->mailbox2);
2949 mb[3] = RD_REG_WORD(&reg->mailbox3);
2950 qla2x00_async_event(vha, rsp, mb);
2951 break;
2952 case INTR_RSP_QUE_UPDATE:
2953 case INTR_RSP_QUE_UPDATE_83XX:
2954 qla24xx_process_response_queue(vha, rsp);
2955 break;
2956 case INTR_ATIO_QUE_UPDATE:{
2957 unsigned long flags2;
2958 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2959 qlt_24xx_process_atio_queue(vha, 1);
2960 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2961 break;
2962 }
2963 case INTR_ATIO_RSP_QUE_UPDATE: {
2964 unsigned long flags2;
2965 spin_lock_irqsave(&ha->tgt.atio_lock, flags2);
2966 qlt_24xx_process_atio_queue(vha, 1);
2967 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2);
2968
2969 qla24xx_process_response_queue(vha, rsp);
2970 break;
2971 }
2972 default:
2973 ql_dbg(ql_dbg_async, vha, 0x5051,
2974 "Unrecognized interrupt type (%d).\n", stat & 0xff);
2975 break;
2976 }
2977 WRT_REG_DWORD(&reg->hccr, HCCRX_CLR_RISC_INT);
2978 } while (0);
2979 qla2x00_handle_mbx_completion(ha, status);
2980 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2981
2982 return IRQ_HANDLED;
2983}
2984
2985/* Interrupt handling helpers. */
2986
2987struct qla_init_msix_entry {
2988 const char *name;
2989 irq_handler_t handler;
2990};
2991
2992static struct qla_init_msix_entry msix_entries[3] = {
2993 { "qla2xxx (default)", qla24xx_msix_default },
2994 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
2995 { "qla2xxx (multiq)", qla25xx_msix_rsp_q },
2996};
2997
2998static struct qla_init_msix_entry qla82xx_msix_entries[2] = {
2999 { "qla2xxx (default)", qla82xx_msix_default },
3000 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3001};
3002
3003static struct qla_init_msix_entry qla83xx_msix_entries[3] = {
3004 { "qla2xxx (default)", qla24xx_msix_default },
3005 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q },
3006 { "qla2xxx (atio_q)", qla83xx_msix_atio_q },
3007};
3008
3009static void
3010qla24xx_disable_msix(struct qla_hw_data *ha)
3011{
3012 int i;
3013 struct qla_msix_entry *qentry;
3014 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3015
3016 for (i = 0; i < ha->msix_count; i++) {
3017 qentry = &ha->msix_entries[i];
3018 if (qentry->have_irq) {
3019 /* un-register irq cpu affinity notification */
3020 irq_set_affinity_notifier(qentry->vector, NULL);
3021 free_irq(qentry->vector, qentry->rsp);
3022 }
3023 }
3024 pci_disable_msix(ha->pdev);
3025 kfree(ha->msix_entries);
3026 ha->msix_entries = NULL;
3027 ha->flags.msix_enabled = 0;
3028 ql_dbg(ql_dbg_init, vha, 0x0042,
3029 "Disabled the MSI.\n");
3030}
3031
3032static int
3033qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3034{
3035#define MIN_MSIX_COUNT 2
3036#define ATIO_VECTOR 2
3037 int i, ret;
3038 struct msix_entry *entries;
3039 struct qla_msix_entry *qentry;
3040 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3041
3042 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count,
3043 GFP_KERNEL);
3044 if (!entries) {
3045 ql_log(ql_log_warn, vha, 0x00bc,
3046 "Failed to allocate memory for msix_entry.\n");
3047 return -ENOMEM;
3048 }
3049
3050 for (i = 0; i < ha->msix_count; i++)
3051 entries[i].entry = i;
3052
3053 ret = pci_enable_msix_range(ha->pdev,
3054 entries, MIN_MSIX_COUNT, ha->msix_count);
3055 if (ret < 0) {
3056 ql_log(ql_log_fatal, vha, 0x00c7,
3057 "MSI-X: Failed to enable support, "
3058 "giving up -- %d/%d.\n",
3059 ha->msix_count, ret);
3060 goto msix_out;
3061 } else if (ret < ha->msix_count) {
3062 ql_log(ql_log_warn, vha, 0x00c6,
3063 "MSI-X: Failed to enable support "
3064 "-- %d/%d\n Retry with %d vectors.\n",
3065 ha->msix_count, ret, ret);
3066 ha->msix_count = ret;
3067 ha->max_rsp_queues = ha->msix_count - 1;
3068 }
3069 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) *
3070 ha->msix_count, GFP_KERNEL);
3071 if (!ha->msix_entries) {
3072 ql_log(ql_log_fatal, vha, 0x00c8,
3073 "Failed to allocate memory for ha->msix_entries.\n");
3074 ret = -ENOMEM;
3075 goto msix_out;
3076 }
3077 ha->flags.msix_enabled = 1;
3078
3079 for (i = 0; i < ha->msix_count; i++) {
3080 qentry = &ha->msix_entries[i];
3081 qentry->vector = entries[i].vector;
3082 qentry->entry = entries[i].entry;
3083 qentry->have_irq = 0;
3084 qentry->rsp = NULL;
3085 qentry->irq_notify.notify = qla_irq_affinity_notify;
3086 qentry->irq_notify.release = qla_irq_affinity_release;
3087 qentry->cpuid = -1;
3088 }
3089
3090 /* Enable MSI-X vectors for the base queue */
3091 for (i = 0; i < 2; i++) {
3092 qentry = &ha->msix_entries[i];
3093 if (IS_P3P_TYPE(ha))
3094 ret = request_irq(qentry->vector,
3095 qla82xx_msix_entries[i].handler,
3096 0, qla82xx_msix_entries[i].name, rsp);
3097 else
3098 ret = request_irq(qentry->vector,
3099 msix_entries[i].handler,
3100 0, msix_entries[i].name, rsp);
3101 if (ret)
3102 goto msix_register_fail;
3103 qentry->have_irq = 1;
3104 qentry->rsp = rsp;
3105 rsp->msix = qentry;
3106
3107 /* Register for CPU affinity notification. */
3108 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify);
3109
3110 /* Schedule work (ie. trigger a notification) to read cpu
3111 * mask for this specific irq.
3112 * kref_get is required because
3113 * irq_affinity_notify() will do
3114 * kref_put().
3115 */
3116 kref_get(&qentry->irq_notify.kref);
3117 schedule_work(&qentry->irq_notify.work);
3118 }
3119
3120 /*
3121 * If target mode is enable, also request the vector for the ATIO
3122 * queue.
3123 */
3124 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) {
3125 qentry = &ha->msix_entries[ATIO_VECTOR];
3126 ret = request_irq(qentry->vector,
3127 qla83xx_msix_entries[ATIO_VECTOR].handler,
3128 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp);
3129 qentry->have_irq = 1;
3130 qentry->rsp = rsp;
3131 rsp->msix = qentry;
3132 }
3133
3134msix_register_fail:
3135 if (ret) {
3136 ql_log(ql_log_fatal, vha, 0x00cb,
3137 "MSI-X: unable to register handler -- %x/%d.\n",
3138 qentry->vector, ret);
3139 qla24xx_disable_msix(ha);
3140 ha->mqenable = 0;
3141 goto msix_out;
3142 }
3143
3144 /* Enable MSI-X vector for response queue update for queue 0 */
3145 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) {
3146 if (ha->msixbase && ha->mqiobase &&
3147 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3148 ha->mqenable = 1;
3149 } else
3150 if (ha->mqiobase
3151 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1))
3152 ha->mqenable = 1;
3153 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3154 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3155 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3156 ql_dbg(ql_dbg_init, vha, 0x0055,
3157 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3158 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3159
3160msix_out:
3161 kfree(entries);
3162 return ret;
3163}
3164
3165int
3166qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3167{
3168 int ret = QLA_FUNCTION_FAILED;
3169 device_reg_t *reg = ha->iobase;
3170 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3171
3172 /* If possible, enable MSI-X. */
3173 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3174 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) &&
3175 !IS_QLA27XX(ha))
3176 goto skip_msi;
3177
3178 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3179 (ha->pdev->subsystem_device == 0x7040 ||
3180 ha->pdev->subsystem_device == 0x7041 ||
3181 ha->pdev->subsystem_device == 0x1705)) {
3182 ql_log(ql_log_warn, vha, 0x0034,
3183 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3184 ha->pdev->subsystem_vendor,
3185 ha->pdev->subsystem_device);
3186 goto skip_msi;
3187 }
3188
3189 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3190 ql_log(ql_log_warn, vha, 0x0035,
3191 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3192 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3193 goto skip_msix;
3194 }
3195
3196 ret = qla24xx_enable_msix(ha, rsp);
3197 if (!ret) {
3198 ql_dbg(ql_dbg_init, vha, 0x0036,
3199 "MSI-X: Enabled (0x%X, 0x%X).\n",
3200 ha->chip_revision, ha->fw_attributes);
3201 goto clear_risc_ints;
3202 }
3203
3204skip_msix:
3205
3206 ql_log(ql_log_info, vha, 0x0037,
3207 "Falling back-to MSI mode -%d.\n", ret);
3208
3209 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3210 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3211 !IS_QLA27XX(ha))
3212 goto skip_msi;
3213
3214 ret = pci_enable_msi(ha->pdev);
3215 if (!ret) {
3216 ql_dbg(ql_dbg_init, vha, 0x0038,
3217 "MSI: Enabled.\n");
3218 ha->flags.msi_enabled = 1;
3219 } else
3220 ql_log(ql_log_warn, vha, 0x0039,
3221 "Falling back-to INTa mode -- %d.\n", ret);
3222skip_msi:
3223
3224 /* Skip INTx on ISP82xx. */
3225 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3226 return QLA_FUNCTION_FAILED;
3227
3228 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3229 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3230 QLA2XXX_DRIVER_NAME, rsp);
3231 if (ret) {
3232 ql_log(ql_log_warn, vha, 0x003a,
3233 "Failed to reserve interrupt %d already in use.\n",
3234 ha->pdev->irq);
3235 goto fail;
3236 } else if (!ha->flags.msi_enabled) {
3237 ql_dbg(ql_dbg_init, vha, 0x0125,
3238 "INTa mode: Enabled.\n");
3239 ha->flags.mr_intr_valid = 1;
3240 }
3241
3242clear_risc_ints:
3243 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3244 goto fail;
3245
3246 spin_lock_irq(&ha->hardware_lock);
3247 WRT_REG_WORD(&reg->isp.semaphore, 0);
3248 spin_unlock_irq(&ha->hardware_lock);
3249
3250fail:
3251 return ret;
3252}
3253
3254void
3255qla2x00_free_irqs(scsi_qla_host_t *vha)
3256{
3257 struct qla_hw_data *ha = vha->hw;
3258 struct rsp_que *rsp;
3259
3260 /*
3261 * We need to check that ha->rsp_q_map is valid in case we are called
3262 * from a probe failure context.
3263 */
3264 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3265 return;
3266 rsp = ha->rsp_q_map[0];
3267
3268 if (ha->flags.msix_enabled)
3269 qla24xx_disable_msix(ha);
3270 else if (ha->flags.msi_enabled) {
3271 free_irq(ha->pdev->irq, rsp);
3272 pci_disable_msi(ha->pdev);
3273 } else
3274 free_irq(ha->pdev->irq, rsp);
3275}
3276
3277
3278int qla25xx_request_irq(struct rsp_que *rsp)
3279{
3280 struct qla_hw_data *ha = rsp->hw;
3281 struct qla_init_msix_entry *intr = &msix_entries[2];
3282 struct qla_msix_entry *msix = rsp->msix;
3283 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3284 int ret;
3285
3286 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp);
3287 if (ret) {
3288 ql_log(ql_log_fatal, vha, 0x00e6,
3289 "MSI-X: Unable to register handler -- %x/%d.\n",
3290 msix->vector, ret);
3291 return ret;
3292 }
3293 msix->have_irq = 1;
3294 msix->rsp = rsp;
3295 return ret;
3296}
3297
3298
3299/* irq_set_affinity/irqbalance will trigger notification of cpu mask update */
3300static void qla_irq_affinity_notify(struct irq_affinity_notify *notify,
3301 const cpumask_t *mask)
3302{
3303 struct qla_msix_entry *e =
3304 container_of(notify, struct qla_msix_entry, irq_notify);
3305 struct qla_hw_data *ha;
3306 struct scsi_qla_host *base_vha;
3307
3308 /* user is recommended to set mask to just 1 cpu */
3309 e->cpuid = cpumask_first(mask);
3310
3311 ha = e->rsp->hw;
3312 base_vha = pci_get_drvdata(ha->pdev);
3313
3314 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3315 "%s: host %ld : vector %d cpu %d \n", __func__,
3316 base_vha->host_no, e->vector, e->cpuid);
3317
3318 if (e->have_irq) {
3319 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) &&
3320 (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) {
3321 ha->tgt.rspq_vector_cpuid = e->cpuid;
3322 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3323 "%s: host%ld: rspq vector %d cpu %d runtime change\n",
3324 __func__, base_vha->host_no, e->vector, e->cpuid);
3325 }
3326 }
3327}
3328
3329static void qla_irq_affinity_release(struct kref *ref)
3330{
3331 struct irq_affinity_notify *notify =
3332 container_of(ref, struct irq_affinity_notify, kref);
3333 struct qla_msix_entry *e =
3334 container_of(notify, struct qla_msix_entry, irq_notify);
3335 struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev);
3336
3337 ql_dbg(ql_dbg_init, base_vha, 0xffff,
3338 "%s: host%ld: vector %d cpu %d \n", __func__,
3339 base_vha->host_no, e->vector, e->cpuid);
3340}
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