1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2014 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8 #include "qla_target.h"
9
10 #include <linux/delay.h>
11 #include <linux/slab.h>
12 #include <linux/cpu.h>
13 #include <linux/t10-pi.h>
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsi_bsg_fc.h>
16 #include <scsi/scsi_eh.h>
17 #include <scsi/fc/fc_fs.h>
18 #include <linux/nvme-fc-driver.h>
19
20 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
21 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *);
22 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *);
23 static int qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *,
24 sts_entry_t *);
25
26 const char *const port_state_str[] = {
27 "Unknown",
28 "UNCONFIGURED",
29 "DEAD",
30 "LOST",
31 "ONLINE"
32 };
33
34 /**
35 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200.
36 * @irq: interrupt number
37 * @dev_id: SCSI driver HA context
38 *
39 * Called by system whenever the host adapter generates an interrupt.
40 *
41 * Returns handled flag.
42 */
43 irqreturn_t
qla2100_intr_handler(int irq,void * dev_id)44 qla2100_intr_handler(int irq, void *dev_id)
45 {
46 scsi_qla_host_t *vha;
47 struct qla_hw_data *ha;
48 struct device_reg_2xxx __iomem *reg;
49 int status;
50 unsigned long iter;
51 uint16_t hccr;
52 uint16_t mb[8];
53 struct rsp_que *rsp;
54 unsigned long flags;
55
56 rsp = (struct rsp_que *) dev_id;
57 if (!rsp) {
58 ql_log(ql_log_info, NULL, 0x505d,
59 "%s: NULL response queue pointer.\n", __func__);
60 return (IRQ_NONE);
61 }
62
63 ha = rsp->hw;
64 reg = &ha->iobase->isp;
65 status = 0;
66
67 spin_lock_irqsave(&ha->hardware_lock, flags);
68 vha = pci_get_drvdata(ha->pdev);
69 for (iter = 50; iter--; ) {
70 hccr = RD_REG_WORD(®->hccr);
71 if (qla2x00_check_reg16_for_disconnect(vha, hccr))
72 break;
73 if (hccr & HCCR_RISC_PAUSE) {
74 if (pci_channel_offline(ha->pdev))
75 break;
76
77 /*
78 * Issue a "HARD" reset in order for the RISC interrupt
79 * bit to be cleared. Schedule a big hammer to get
80 * out of the RISC PAUSED state.
81 */
82 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
83 RD_REG_WORD(®->hccr);
84
85 ha->isp_ops->fw_dump(vha, 1);
86 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
87 break;
88 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0)
89 break;
90
91 if (RD_REG_WORD(®->semaphore) & BIT_0) {
92 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
93 RD_REG_WORD(®->hccr);
94
95 /* Get mailbox data. */
96 mb[0] = RD_MAILBOX_REG(ha, reg, 0);
97 if (mb[0] > 0x3fff && mb[0] < 0x8000) {
98 qla2x00_mbx_completion(vha, mb[0]);
99 status |= MBX_INTERRUPT;
100 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) {
101 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
102 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
103 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
104 qla2x00_async_event(vha, rsp, mb);
105 } else {
106 /*EMPTY*/
107 ql_dbg(ql_dbg_async, vha, 0x5025,
108 "Unrecognized interrupt type (%d).\n",
109 mb[0]);
110 }
111 /* Release mailbox registers. */
112 WRT_REG_WORD(®->semaphore, 0);
113 RD_REG_WORD(®->semaphore);
114 } else {
115 qla2x00_process_response_queue(rsp);
116
117 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
118 RD_REG_WORD(®->hccr);
119 }
120 }
121 qla2x00_handle_mbx_completion(ha, status);
122 spin_unlock_irqrestore(&ha->hardware_lock, flags);
123
124 return (IRQ_HANDLED);
125 }
126
127 bool
qla2x00_check_reg32_for_disconnect(scsi_qla_host_t * vha,uint32_t reg)128 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg)
129 {
130 /* Check for PCI disconnection */
131 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) {
132 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) &&
133 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) &&
134 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) {
135 /*
136 * Schedule this (only once) on the default system
137 * workqueue so that all the adapter workqueues and the
138 * DPC thread can be shutdown cleanly.
139 */
140 schedule_work(&vha->hw->board_disable);
141 }
142 return true;
143 } else
144 return false;
145 }
146
147 bool
qla2x00_check_reg16_for_disconnect(scsi_qla_host_t * vha,uint16_t reg)148 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg)
149 {
150 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg);
151 }
152
153 /**
154 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx.
155 * @irq: interrupt number
156 * @dev_id: SCSI driver HA context
157 *
158 * Called by system whenever the host adapter generates an interrupt.
159 *
160 * Returns handled flag.
161 */
162 irqreturn_t
qla2300_intr_handler(int irq,void * dev_id)163 qla2300_intr_handler(int irq, void *dev_id)
164 {
165 scsi_qla_host_t *vha;
166 struct device_reg_2xxx __iomem *reg;
167 int status;
168 unsigned long iter;
169 uint32_t stat;
170 uint16_t hccr;
171 uint16_t mb[8];
172 struct rsp_que *rsp;
173 struct qla_hw_data *ha;
174 unsigned long flags;
175
176 rsp = (struct rsp_que *) dev_id;
177 if (!rsp) {
178 ql_log(ql_log_info, NULL, 0x5058,
179 "%s: NULL response queue pointer.\n", __func__);
180 return (IRQ_NONE);
181 }
182
183 ha = rsp->hw;
184 reg = &ha->iobase->isp;
185 status = 0;
186
187 spin_lock_irqsave(&ha->hardware_lock, flags);
188 vha = pci_get_drvdata(ha->pdev);
189 for (iter = 50; iter--; ) {
190 stat = RD_REG_DWORD(®->u.isp2300.host_status);
191 if (qla2x00_check_reg32_for_disconnect(vha, stat))
192 break;
193 if (stat & HSR_RISC_PAUSED) {
194 if (unlikely(pci_channel_offline(ha->pdev)))
195 break;
196
197 hccr = RD_REG_WORD(®->hccr);
198
199 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8))
200 ql_log(ql_log_warn, vha, 0x5026,
201 "Parity error -- HCCR=%x, Dumping "
202 "firmware.\n", hccr);
203 else
204 ql_log(ql_log_warn, vha, 0x5027,
205 "RISC paused -- HCCR=%x, Dumping "
206 "firmware.\n", hccr);
207
208 /*
209 * Issue a "HARD" reset in order for the RISC
210 * interrupt bit to be cleared. Schedule a big
211 * hammer to get out of the RISC PAUSED state.
212 */
213 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC);
214 RD_REG_WORD(®->hccr);
215
216 ha->isp_ops->fw_dump(vha, 1);
217 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
218 break;
219 } else if ((stat & HSR_RISC_INT) == 0)
220 break;
221
222 switch (stat & 0xff) {
223 case 0x1:
224 case 0x2:
225 case 0x10:
226 case 0x11:
227 qla2x00_mbx_completion(vha, MSW(stat));
228 status |= MBX_INTERRUPT;
229
230 /* Release mailbox registers. */
231 WRT_REG_WORD(®->semaphore, 0);
232 break;
233 case 0x12:
234 mb[0] = MSW(stat);
235 mb[1] = RD_MAILBOX_REG(ha, reg, 1);
236 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
237 mb[3] = RD_MAILBOX_REG(ha, reg, 3);
238 qla2x00_async_event(vha, rsp, mb);
239 break;
240 case 0x13:
241 qla2x00_process_response_queue(rsp);
242 break;
243 case 0x15:
244 mb[0] = MBA_CMPLT_1_16BIT;
245 mb[1] = MSW(stat);
246 qla2x00_async_event(vha, rsp, mb);
247 break;
248 case 0x16:
249 mb[0] = MBA_SCSI_COMPLETION;
250 mb[1] = MSW(stat);
251 mb[2] = RD_MAILBOX_REG(ha, reg, 2);
252 qla2x00_async_event(vha, rsp, mb);
253 break;
254 default:
255 ql_dbg(ql_dbg_async, vha, 0x5028,
256 "Unrecognized interrupt type (%d).\n", stat & 0xff);
257 break;
258 }
259 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT);
260 RD_REG_WORD_RELAXED(®->hccr);
261 }
262 qla2x00_handle_mbx_completion(ha, status);
263 spin_unlock_irqrestore(&ha->hardware_lock, flags);
264
265 return (IRQ_HANDLED);
266 }
267
268 /**
269 * qla2x00_mbx_completion() - Process mailbox command completions.
270 * @vha: SCSI driver HA context
271 * @mb0: Mailbox0 register
272 */
273 static void
qla2x00_mbx_completion(scsi_qla_host_t * vha,uint16_t mb0)274 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
275 {
276 uint16_t cnt;
277 uint32_t mboxes;
278 uint16_t __iomem *wptr;
279 struct qla_hw_data *ha = vha->hw;
280 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
281
282 /* Read all mbox registers? */
283 WARN_ON_ONCE(ha->mbx_count > 32);
284 mboxes = (1ULL << ha->mbx_count) - 1;
285 if (!ha->mcp)
286 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n");
287 else
288 mboxes = ha->mcp->in_mb;
289
290 /* Load return mailbox registers. */
291 ha->flags.mbox_int = 1;
292 ha->mailbox_out[0] = mb0;
293 mboxes >>= 1;
294 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
295
296 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
297 if (IS_QLA2200(ha) && cnt == 8)
298 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
299 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
300 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
301 else if (mboxes & BIT_0)
302 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
303
304 wptr++;
305 mboxes >>= 1;
306 }
307 }
308
309 static void
qla81xx_idc_event(scsi_qla_host_t * vha,uint16_t aen,uint16_t descr)310 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
311 {
312 static char *event[] =
313 { "Complete", "Request Notification", "Time Extension" };
314 int rval;
315 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24;
316 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82;
317 uint16_t __iomem *wptr;
318 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS];
319
320 /* Seed data -- mailbox1 -> mailbox7. */
321 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw))
322 wptr = (uint16_t __iomem *)®24->mailbox1;
323 else if (IS_QLA8044(vha->hw))
324 wptr = (uint16_t __iomem *)®82->mailbox_out[1];
325 else
326 return;
327
328 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++)
329 mb[cnt] = RD_REG_WORD(wptr);
330
331 ql_dbg(ql_dbg_async, vha, 0x5021,
332 "Inter-Driver Communication %s -- "
333 "%04x %04x %04x %04x %04x %04x %04x.\n",
334 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3],
335 mb[4], mb[5], mb[6]);
336 switch (aen) {
337 /* Handle IDC Error completion case. */
338 case MBA_IDC_COMPLETE:
339 if (mb[1] >> 15) {
340 vha->hw->flags.idc_compl_status = 1;
341 if (vha->hw->notify_dcbx_comp && !vha->vp_idx)
342 complete(&vha->hw->dcbx_comp);
343 }
344 break;
345
346 case MBA_IDC_NOTIFY:
347 /* Acknowledgement needed? [Notify && non-zero timeout]. */
348 timeout = (descr >> 8) & 0xf;
349 ql_dbg(ql_dbg_async, vha, 0x5022,
350 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
351 vha->host_no, event[aen & 0xff], timeout);
352
353 if (!timeout)
354 return;
355 rval = qla2x00_post_idc_ack_work(vha, mb);
356 if (rval != QLA_SUCCESS)
357 ql_log(ql_log_warn, vha, 0x5023,
358 "IDC failed to post ACK.\n");
359 break;
360 case MBA_IDC_TIME_EXT:
361 vha->hw->idc_extend_tmo = descr;
362 ql_dbg(ql_dbg_async, vha, 0x5087,
363 "%lu Inter-Driver Communication %s -- "
364 "Extend timeout by=%d.\n",
365 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo);
366 break;
367 }
368 }
369
370 #define LS_UNKNOWN 2
371 const char *
qla2x00_get_link_speed_str(struct qla_hw_data * ha,uint16_t speed)372 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed)
373 {
374 static const char *const link_speeds[] = {
375 "1", "2", "?", "4", "8", "16", "32", "10"
376 };
377 #define QLA_LAST_SPEED (ARRAY_SIZE(link_speeds) - 1)
378
379 if (IS_QLA2100(ha) || IS_QLA2200(ha))
380 return link_speeds[0];
381 else if (speed == 0x13)
382 return link_speeds[QLA_LAST_SPEED];
383 else if (speed < QLA_LAST_SPEED)
384 return link_speeds[speed];
385 else
386 return link_speeds[LS_UNKNOWN];
387 }
388
389 static void
qla83xx_handle_8200_aen(scsi_qla_host_t * vha,uint16_t * mb)390 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb)
391 {
392 struct qla_hw_data *ha = vha->hw;
393
394 /*
395 * 8200 AEN Interpretation:
396 * mb[0] = AEN code
397 * mb[1] = AEN Reason code
398 * mb[2] = LSW of Peg-Halt Status-1 Register
399 * mb[6] = MSW of Peg-Halt Status-1 Register
400 * mb[3] = LSW of Peg-Halt Status-2 register
401 * mb[7] = MSW of Peg-Halt Status-2 register
402 * mb[4] = IDC Device-State Register value
403 * mb[5] = IDC Driver-Presence Register value
404 */
405 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: "
406 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n",
407 mb[0], mb[1], mb[2], mb[6]);
408 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x "
409 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x "
410 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]);
411
412 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE |
413 IDC_HEARTBEAT_FAILURE)) {
414 ha->flags.nic_core_hung = 1;
415 ql_log(ql_log_warn, vha, 0x5060,
416 "83XX: F/W Error Reported: Check if reset required.\n");
417
418 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) {
419 uint32_t protocol_engine_id, fw_err_code, err_level;
420
421 /*
422 * IDC_PEG_HALT_STATUS_CHANGE interpretation:
423 * - PEG-Halt Status-1 Register:
424 * (LSW = mb[2], MSW = mb[6])
425 * Bits 0-7 = protocol-engine ID
426 * Bits 8-28 = f/w error code
427 * Bits 29-31 = Error-level
428 * Error-level 0x1 = Non-Fatal error
429 * Error-level 0x2 = Recoverable Fatal error
430 * Error-level 0x4 = UnRecoverable Fatal error
431 * - PEG-Halt Status-2 Register:
432 * (LSW = mb[3], MSW = mb[7])
433 */
434 protocol_engine_id = (mb[2] & 0xff);
435 fw_err_code = (((mb[2] & 0xff00) >> 8) |
436 ((mb[6] & 0x1fff) << 8));
437 err_level = ((mb[6] & 0xe000) >> 13);
438 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 "
439 "Register: protocol_engine_id=0x%x "
440 "fw_err_code=0x%x err_level=0x%x.\n",
441 protocol_engine_id, fw_err_code, err_level);
442 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 "
443 "Register: 0x%x%x.\n", mb[7], mb[3]);
444 if (err_level == ERR_LEVEL_NON_FATAL) {
445 ql_log(ql_log_warn, vha, 0x5063,
446 "Not a fatal error, f/w has recovered itself.\n");
447 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) {
448 ql_log(ql_log_fatal, vha, 0x5064,
449 "Recoverable Fatal error: Chip reset "
450 "required.\n");
451 qla83xx_schedule_work(vha,
452 QLA83XX_NIC_CORE_RESET);
453 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) {
454 ql_log(ql_log_fatal, vha, 0x5065,
455 "Unrecoverable Fatal error: Set FAILED "
456 "state, reboot required.\n");
457 qla83xx_schedule_work(vha,
458 QLA83XX_NIC_CORE_UNRECOVERABLE);
459 }
460 }
461
462 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) {
463 uint16_t peg_fw_state, nw_interface_link_up;
464 uint16_t nw_interface_signal_detect, sfp_status;
465 uint16_t htbt_counter, htbt_monitor_enable;
466 uint16_t sfp_additional_info, sfp_multirate;
467 uint16_t sfp_tx_fault, link_speed, dcbx_status;
468
469 /*
470 * IDC_NIC_FW_REPORTED_FAILURE interpretation:
471 * - PEG-to-FC Status Register:
472 * (LSW = mb[2], MSW = mb[6])
473 * Bits 0-7 = Peg-Firmware state
474 * Bit 8 = N/W Interface Link-up
475 * Bit 9 = N/W Interface signal detected
476 * Bits 10-11 = SFP Status
477 * SFP Status 0x0 = SFP+ transceiver not expected
478 * SFP Status 0x1 = SFP+ transceiver not present
479 * SFP Status 0x2 = SFP+ transceiver invalid
480 * SFP Status 0x3 = SFP+ transceiver present and
481 * valid
482 * Bits 12-14 = Heartbeat Counter
483 * Bit 15 = Heartbeat Monitor Enable
484 * Bits 16-17 = SFP Additional Info
485 * SFP info 0x0 = Unregocnized transceiver for
486 * Ethernet
487 * SFP info 0x1 = SFP+ brand validation failed
488 * SFP info 0x2 = SFP+ speed validation failed
489 * SFP info 0x3 = SFP+ access error
490 * Bit 18 = SFP Multirate
491 * Bit 19 = SFP Tx Fault
492 * Bits 20-22 = Link Speed
493 * Bits 23-27 = Reserved
494 * Bits 28-30 = DCBX Status
495 * DCBX Status 0x0 = DCBX Disabled
496 * DCBX Status 0x1 = DCBX Enabled
497 * DCBX Status 0x2 = DCBX Exchange error
498 * Bit 31 = Reserved
499 */
500 peg_fw_state = (mb[2] & 0x00ff);
501 nw_interface_link_up = ((mb[2] & 0x0100) >> 8);
502 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9);
503 sfp_status = ((mb[2] & 0x0c00) >> 10);
504 htbt_counter = ((mb[2] & 0x7000) >> 12);
505 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15);
506 sfp_additional_info = (mb[6] & 0x0003);
507 sfp_multirate = ((mb[6] & 0x0004) >> 2);
508 sfp_tx_fault = ((mb[6] & 0x0008) >> 3);
509 link_speed = ((mb[6] & 0x0070) >> 4);
510 dcbx_status = ((mb[6] & 0x7000) >> 12);
511
512 ql_log(ql_log_warn, vha, 0x5066,
513 "Peg-to-Fc Status Register:\n"
514 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, "
515 "nw_interface_signal_detect=0x%x"
516 "\nsfp_statis=0x%x.\n ", peg_fw_state,
517 nw_interface_link_up, nw_interface_signal_detect,
518 sfp_status);
519 ql_log(ql_log_warn, vha, 0x5067,
520 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, "
521 "sfp_additional_info=0x%x, sfp_multirate=0x%x.\n ",
522 htbt_counter, htbt_monitor_enable,
523 sfp_additional_info, sfp_multirate);
524 ql_log(ql_log_warn, vha, 0x5068,
525 "sfp_tx_fault=0x%x, link_state=0x%x, "
526 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed,
527 dcbx_status);
528
529 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
530 }
531
532 if (mb[1] & IDC_HEARTBEAT_FAILURE) {
533 ql_log(ql_log_warn, vha, 0x5069,
534 "Heartbeat Failure encountered, chip reset "
535 "required.\n");
536
537 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET);
538 }
539 }
540
541 if (mb[1] & IDC_DEVICE_STATE_CHANGE) {
542 ql_log(ql_log_info, vha, 0x506a,
543 "IDC Device-State changed = 0x%x.\n", mb[4]);
544 if (ha->flags.nic_core_reset_owner)
545 return;
546 qla83xx_schedule_work(vha, MBA_IDC_AEN);
547 }
548 }
549
550 int
qla2x00_is_a_vp_did(scsi_qla_host_t * vha,uint32_t rscn_entry)551 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry)
552 {
553 struct qla_hw_data *ha = vha->hw;
554 scsi_qla_host_t *vp;
555 uint32_t vp_did;
556 unsigned long flags;
557 int ret = 0;
558
559 if (!ha->num_vhosts)
560 return ret;
561
562 spin_lock_irqsave(&ha->vport_slock, flags);
563 list_for_each_entry(vp, &ha->vp_list, list) {
564 vp_did = vp->d_id.b24;
565 if (vp_did == rscn_entry) {
566 ret = 1;
567 break;
568 }
569 }
570 spin_unlock_irqrestore(&ha->vport_slock, flags);
571
572 return ret;
573 }
574
575 fc_port_t *
qla2x00_find_fcport_by_loopid(scsi_qla_host_t * vha,uint16_t loop_id)576 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id)
577 {
578 fc_port_t *f, *tf;
579
580 f = tf = NULL;
581 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list)
582 if (f->loop_id == loop_id)
583 return f;
584 return NULL;
585 }
586
587 fc_port_t *
qla2x00_find_fcport_by_wwpn(scsi_qla_host_t * vha,u8 * wwpn,u8 incl_deleted)588 qla2x00_find_fcport_by_wwpn(scsi_qla_host_t *vha, u8 *wwpn, u8 incl_deleted)
589 {
590 fc_port_t *f, *tf;
591
592 f = tf = NULL;
593 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
594 if (memcmp(f->port_name, wwpn, WWN_SIZE) == 0) {
595 if (incl_deleted)
596 return f;
597 else if (f->deleted == 0)
598 return f;
599 }
600 }
601 return NULL;
602 }
603
604 fc_port_t *
qla2x00_find_fcport_by_nportid(scsi_qla_host_t * vha,port_id_t * id,u8 incl_deleted)605 qla2x00_find_fcport_by_nportid(scsi_qla_host_t *vha, port_id_t *id,
606 u8 incl_deleted)
607 {
608 fc_port_t *f, *tf;
609
610 f = tf = NULL;
611 list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
612 if (f->d_id.b24 == id->b24) {
613 if (incl_deleted)
614 return f;
615 else if (f->deleted == 0)
616 return f;
617 }
618 }
619 return NULL;
620 }
621
622 /**
623 * qla2x00_async_event() - Process aynchronous events.
624 * @vha: SCSI driver HA context
625 * @rsp: response queue
626 * @mb: Mailbox registers (0 - 3)
627 */
628 void
qla2x00_async_event(scsi_qla_host_t * vha,struct rsp_que * rsp,uint16_t * mb)629 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
630 {
631 uint16_t handle_cnt;
632 uint16_t cnt, mbx;
633 uint32_t handles[5];
634 struct qla_hw_data *ha = vha->hw;
635 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
636 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
637 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
638 uint32_t rscn_entry, host_pid;
639 unsigned long flags;
640 fc_port_t *fcport = NULL;
641
642 if (!vha->hw->flags.fw_started)
643 return;
644
645 /* Setup to process RIO completion. */
646 handle_cnt = 0;
647 if (IS_CNA_CAPABLE(ha))
648 goto skip_rio;
649 switch (mb[0]) {
650 case MBA_SCSI_COMPLETION:
651 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
652 handle_cnt = 1;
653 break;
654 case MBA_CMPLT_1_16BIT:
655 handles[0] = mb[1];
656 handle_cnt = 1;
657 mb[0] = MBA_SCSI_COMPLETION;
658 break;
659 case MBA_CMPLT_2_16BIT:
660 handles[0] = mb[1];
661 handles[1] = mb[2];
662 handle_cnt = 2;
663 mb[0] = MBA_SCSI_COMPLETION;
664 break;
665 case MBA_CMPLT_3_16BIT:
666 handles[0] = mb[1];
667 handles[1] = mb[2];
668 handles[2] = mb[3];
669 handle_cnt = 3;
670 mb[0] = MBA_SCSI_COMPLETION;
671 break;
672 case MBA_CMPLT_4_16BIT:
673 handles[0] = mb[1];
674 handles[1] = mb[2];
675 handles[2] = mb[3];
676 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
677 handle_cnt = 4;
678 mb[0] = MBA_SCSI_COMPLETION;
679 break;
680 case MBA_CMPLT_5_16BIT:
681 handles[0] = mb[1];
682 handles[1] = mb[2];
683 handles[2] = mb[3];
684 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6);
685 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7);
686 handle_cnt = 5;
687 mb[0] = MBA_SCSI_COMPLETION;
688 break;
689 case MBA_CMPLT_2_32BIT:
690 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
691 handles[1] = le32_to_cpu(
692 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) |
693 RD_MAILBOX_REG(ha, reg, 6));
694 handle_cnt = 2;
695 mb[0] = MBA_SCSI_COMPLETION;
696 break;
697 default:
698 break;
699 }
700 skip_rio:
701 switch (mb[0]) {
702 case MBA_SCSI_COMPLETION: /* Fast Post */
703 if (!vha->flags.online)
704 break;
705
706 for (cnt = 0; cnt < handle_cnt; cnt++)
707 qla2x00_process_completed_request(vha, rsp->req,
708 handles[cnt]);
709 break;
710
711 case MBA_RESET: /* Reset */
712 ql_dbg(ql_dbg_async, vha, 0x5002,
713 "Asynchronous RESET.\n");
714
715 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
716 break;
717
718 case MBA_SYSTEM_ERR: /* System Error */
719 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
720 IS_QLA28XX(ha)) ?
721 RD_REG_WORD(®24->mailbox7) : 0;
722 ql_log(ql_log_warn, vha, 0x5003,
723 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
724 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
725 ha->fw_dump_mpi =
726 (IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
727 RD_REG_WORD(®24->mailbox7) & BIT_8;
728 ha->isp_ops->fw_dump(vha, 1);
729 ha->flags.fw_init_done = 0;
730 QLA_FW_STOPPED(ha);
731
732 if (IS_FWI2_CAPABLE(ha)) {
733 if (mb[1] == 0 && mb[2] == 0) {
734 ql_log(ql_log_fatal, vha, 0x5004,
735 "Unrecoverable Hardware Error: adapter "
736 "marked OFFLINE!\n");
737 vha->flags.online = 0;
738 vha->device_flags |= DFLG_DEV_FAILED;
739 } else {
740 /* Check to see if MPI timeout occurred */
741 if ((mbx & MBX_3) && (ha->port_no == 0))
742 set_bit(MPI_RESET_NEEDED,
743 &vha->dpc_flags);
744
745 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
746 }
747 } else if (mb[1] == 0) {
748 ql_log(ql_log_fatal, vha, 0x5005,
749 "Unrecoverable Hardware Error: adapter marked "
750 "OFFLINE!\n");
751 vha->flags.online = 0;
752 vha->device_flags |= DFLG_DEV_FAILED;
753 } else
754 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
755 break;
756
757 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
758 ql_log(ql_log_warn, vha, 0x5006,
759 "ISP Request Transfer Error (%x).\n", mb[1]);
760
761 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
762 break;
763
764 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
765 ql_log(ql_log_warn, vha, 0x5007,
766 "ISP Response Transfer Error (%x).\n", mb[1]);
767
768 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
769 break;
770
771 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
772 ql_dbg(ql_dbg_async, vha, 0x5008,
773 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]);
774 break;
775
776 case MBA_LOOP_INIT_ERR:
777 ql_log(ql_log_warn, vha, 0x5090,
778 "LOOP INIT ERROR (%x).\n", mb[1]);
779 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
780 break;
781
782 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
783 ha->flags.lip_ae = 1;
784
785 ql_dbg(ql_dbg_async, vha, 0x5009,
786 "LIP occurred (%x).\n", mb[1]);
787
788 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
789 atomic_set(&vha->loop_state, LOOP_DOWN);
790 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
791 qla2x00_mark_all_devices_lost(vha, 1);
792 }
793
794 if (vha->vp_idx) {
795 atomic_set(&vha->vp_state, VP_FAILED);
796 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
797 }
798
799 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
800 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
801
802 vha->flags.management_server_logged_in = 0;
803 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]);
804 break;
805
806 case MBA_LOOP_UP: /* Loop Up Event */
807 if (IS_QLA2100(ha) || IS_QLA2200(ha))
808 ha->link_data_rate = PORT_SPEED_1GB;
809 else
810 ha->link_data_rate = mb[1];
811
812 ql_log(ql_log_info, vha, 0x500a,
813 "LOOP UP detected (%s Gbps).\n",
814 qla2x00_get_link_speed_str(ha, ha->link_data_rate));
815
816 vha->flags.management_server_logged_in = 0;
817 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
818
819 if (AUTO_DETECT_SFP_SUPPORT(vha)) {
820 set_bit(DETECT_SFP_CHANGE, &vha->dpc_flags);
821 qla2xxx_wake_dpc(vha);
822 }
823 break;
824
825 case MBA_LOOP_DOWN: /* Loop Down Event */
826 SAVE_TOPO(ha);
827 ha->flags.lip_ae = 0;
828 ha->current_topology = 0;
829
830 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
831 ? RD_REG_WORD(®24->mailbox4) : 0;
832 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4])
833 : mbx;
834 ql_log(ql_log_info, vha, 0x500b,
835 "LOOP DOWN detected (%x %x %x %x).\n",
836 mb[1], mb[2], mb[3], mbx);
837
838 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
839 atomic_set(&vha->loop_state, LOOP_DOWN);
840 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
841 /*
842 * In case of loop down, restore WWPN from
843 * NVRAM in case of FA-WWPN capable ISP
844 * Restore for Physical Port only
845 */
846 if (!vha->vp_idx) {
847 if (ha->flags.fawwpn_enabled &&
848 (ha->current_topology == ISP_CFG_F)) {
849 void *wwpn = ha->init_cb->port_name;
850
851 memcpy(vha->port_name, wwpn, WWN_SIZE);
852 fc_host_port_name(vha->host) =
853 wwn_to_u64(vha->port_name);
854 ql_dbg(ql_dbg_init + ql_dbg_verbose,
855 vha, 0x00d8, "LOOP DOWN detected,"
856 "restore WWPN %016llx\n",
857 wwn_to_u64(vha->port_name));
858 }
859
860 clear_bit(VP_CONFIG_OK, &vha->vp_flags);
861 }
862
863 vha->device_flags |= DFLG_NO_CABLE;
864 qla2x00_mark_all_devices_lost(vha, 1);
865 }
866
867 if (vha->vp_idx) {
868 atomic_set(&vha->vp_state, VP_FAILED);
869 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
870 }
871
872 vha->flags.management_server_logged_in = 0;
873 ha->link_data_rate = PORT_SPEED_UNKNOWN;
874 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0);
875 break;
876
877 case MBA_LIP_RESET: /* LIP reset occurred */
878 ql_dbg(ql_dbg_async, vha, 0x500c,
879 "LIP reset occurred (%x).\n", mb[1]);
880
881 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
882 atomic_set(&vha->loop_state, LOOP_DOWN);
883 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
884 qla2x00_mark_all_devices_lost(vha, 1);
885 }
886
887 if (vha->vp_idx) {
888 atomic_set(&vha->vp_state, VP_FAILED);
889 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
890 }
891
892 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
893
894 ha->operating_mode = LOOP;
895 vha->flags.management_server_logged_in = 0;
896 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]);
897 break;
898
899 /* case MBA_DCBX_COMPLETE: */
900 case MBA_POINT_TO_POINT: /* Point-to-Point */
901 ha->flags.lip_ae = 0;
902
903 if (IS_QLA2100(ha))
904 break;
905
906 if (IS_CNA_CAPABLE(ha)) {
907 ql_dbg(ql_dbg_async, vha, 0x500d,
908 "DCBX Completed -- %04x %04x %04x.\n",
909 mb[1], mb[2], mb[3]);
910 if (ha->notify_dcbx_comp && !vha->vp_idx)
911 complete(&ha->dcbx_comp);
912
913 } else
914 ql_dbg(ql_dbg_async, vha, 0x500e,
915 "Asynchronous P2P MODE received.\n");
916
917 /*
918 * Until there's a transition from loop down to loop up, treat
919 * this as loop down only.
920 */
921 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
922 atomic_set(&vha->loop_state, LOOP_DOWN);
923 if (!atomic_read(&vha->loop_down_timer))
924 atomic_set(&vha->loop_down_timer,
925 LOOP_DOWN_TIME);
926 if (!N2N_TOPO(ha))
927 qla2x00_mark_all_devices_lost(vha, 1);
928 }
929
930 if (vha->vp_idx) {
931 atomic_set(&vha->vp_state, VP_FAILED);
932 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
933 }
934
935 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)))
936 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags);
937
938 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags);
939 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags);
940
941 vha->flags.management_server_logged_in = 0;
942 break;
943
944 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */
945 if (IS_QLA2100(ha))
946 break;
947
948 ql_dbg(ql_dbg_async, vha, 0x500f,
949 "Configuration change detected: value=%x.\n", mb[1]);
950
951 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
952 atomic_set(&vha->loop_state, LOOP_DOWN);
953 if (!atomic_read(&vha->loop_down_timer))
954 atomic_set(&vha->loop_down_timer,
955 LOOP_DOWN_TIME);
956 qla2x00_mark_all_devices_lost(vha, 1);
957 }
958
959 if (vha->vp_idx) {
960 atomic_set(&vha->vp_state, VP_FAILED);
961 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED);
962 }
963
964 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
965 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
966 break;
967
968 case MBA_PORT_UPDATE: /* Port database update */
969 /*
970 * Handle only global and vn-port update events
971 *
972 * Relevant inputs:
973 * mb[1] = N_Port handle of changed port
974 * OR 0xffff for global event
975 * mb[2] = New login state
976 * 7 = Port logged out
977 * mb[3] = LSB is vp_idx, 0xff = all vps
978 *
979 * Skip processing if:
980 * Event is global, vp_idx is NOT all vps,
981 * vp_idx does not match
982 * Event is not global, vp_idx does not match
983 */
984 if (IS_QLA2XXX_MIDTYPE(ha) &&
985 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) ||
986 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff))
987 break;
988
989 if (mb[2] == 0x7) {
990 ql_dbg(ql_dbg_async, vha, 0x5010,
991 "Port %s %04x %04x %04x.\n",
992 mb[1] == 0xffff ? "unavailable" : "logout",
993 mb[1], mb[2], mb[3]);
994
995 if (mb[1] == 0xffff)
996 goto global_port_update;
997
998 if (mb[1] == NPH_SNS_LID(ha)) {
999 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1000 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1001 break;
1002 }
1003
1004 /* use handle_cnt for loop id/nport handle */
1005 if (IS_FWI2_CAPABLE(ha))
1006 handle_cnt = NPH_SNS;
1007 else
1008 handle_cnt = SIMPLE_NAME_SERVER;
1009 if (mb[1] == handle_cnt) {
1010 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1011 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1012 break;
1013 }
1014
1015 /* Port logout */
1016 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]);
1017 if (!fcport)
1018 break;
1019 if (atomic_read(&fcport->state) != FCS_ONLINE)
1020 break;
1021 ql_dbg(ql_dbg_async, vha, 0x508a,
1022 "Marking port lost loopid=%04x portid=%06x.\n",
1023 fcport->loop_id, fcport->d_id.b24);
1024 if (qla_ini_mode_enabled(vha)) {
1025 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
1026 fcport->logout_on_delete = 0;
1027 qlt_schedule_sess_for_deletion(fcport);
1028 }
1029 break;
1030
1031 global_port_update:
1032 if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
1033 atomic_set(&vha->loop_state, LOOP_DOWN);
1034 atomic_set(&vha->loop_down_timer,
1035 LOOP_DOWN_TIME);
1036 vha->device_flags |= DFLG_NO_CABLE;
1037 qla2x00_mark_all_devices_lost(vha, 1);
1038 }
1039
1040 if (vha->vp_idx) {
1041 atomic_set(&vha->vp_state, VP_FAILED);
1042 fc_vport_set_state(vha->fc_vport,
1043 FC_VPORT_FAILED);
1044 qla2x00_mark_all_devices_lost(vha, 1);
1045 }
1046
1047 vha->flags.management_server_logged_in = 0;
1048 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1049 break;
1050 }
1051
1052 /*
1053 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET
1054 * event etc. earlier indicating loop is down) then process
1055 * it. Otherwise ignore it and Wait for RSCN to come in.
1056 */
1057 atomic_set(&vha->loop_down_timer, 0);
1058 if (atomic_read(&vha->loop_state) != LOOP_DOWN &&
1059 !ha->flags.n2n_ae &&
1060 atomic_read(&vha->loop_state) != LOOP_DEAD) {
1061 ql_dbg(ql_dbg_async, vha, 0x5011,
1062 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
1063 mb[1], mb[2], mb[3]);
1064
1065 qlt_async_event(mb[0], vha, mb);
1066 break;
1067 }
1068
1069 ql_dbg(ql_dbg_async, vha, 0x5012,
1070 "Port database changed %04x %04x %04x.\n",
1071 mb[1], mb[2], mb[3]);
1072
1073 /*
1074 * Mark all devices as missing so we will login again.
1075 */
1076 atomic_set(&vha->loop_state, LOOP_UP);
1077 vha->scan.scan_retry = 0;
1078
1079 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
1080 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
1081 set_bit(VP_CONFIG_OK, &vha->vp_flags);
1082
1083 qlt_async_event(mb[0], vha, mb);
1084 break;
1085
1086 case MBA_RSCN_UPDATE: /* State Change Registration */
1087 /* Check if the Vport has issued a SCR */
1088 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags))
1089 break;
1090 /* Only handle SCNs for our Vport index. */
1091 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff))
1092 break;
1093
1094 ql_dbg(ql_dbg_async, vha, 0x5013,
1095 "RSCN database changed -- %04x %04x %04x.\n",
1096 mb[1], mb[2], mb[3]);
1097
1098 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2];
1099 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8)
1100 | vha->d_id.b.al_pa;
1101 if (rscn_entry == host_pid) {
1102 ql_dbg(ql_dbg_async, vha, 0x5014,
1103 "Ignoring RSCN update to local host "
1104 "port ID (%06x).\n", host_pid);
1105 break;
1106 }
1107
1108 /* Ignore reserved bits from RSCN-payload. */
1109 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2];
1110
1111 /* Skip RSCNs for virtual ports on the same physical port */
1112 if (qla2x00_is_a_vp_did(vha, rscn_entry))
1113 break;
1114
1115 atomic_set(&vha->loop_down_timer, 0);
1116 vha->flags.management_server_logged_in = 0;
1117 {
1118 struct event_arg ea;
1119
1120 memset(&ea, 0, sizeof(ea));
1121 ea.id.b24 = rscn_entry;
1122 ea.id.b.rsvd_1 = rscn_entry >> 24;
1123 qla2x00_handle_rscn(vha, &ea);
1124 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry);
1125 }
1126 break;
1127 /* case MBA_RIO_RESPONSE: */
1128 case MBA_ZIO_RESPONSE:
1129 ql_dbg(ql_dbg_async, vha, 0x5015,
1130 "[R|Z]IO update completion.\n");
1131
1132 if (IS_FWI2_CAPABLE(ha))
1133 qla24xx_process_response_queue(vha, rsp);
1134 else
1135 qla2x00_process_response_queue(rsp);
1136 break;
1137
1138 case MBA_DISCARD_RND_FRAME:
1139 ql_dbg(ql_dbg_async, vha, 0x5016,
1140 "Discard RND Frame -- %04x %04x %04x.\n",
1141 mb[1], mb[2], mb[3]);
1142 break;
1143
1144 case MBA_TRACE_NOTIFICATION:
1145 ql_dbg(ql_dbg_async, vha, 0x5017,
1146 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]);
1147 break;
1148
1149 case MBA_ISP84XX_ALERT:
1150 ql_dbg(ql_dbg_async, vha, 0x5018,
1151 "ISP84XX Alert Notification -- %04x %04x %04x.\n",
1152 mb[1], mb[2], mb[3]);
1153
1154 spin_lock_irqsave(&ha->cs84xx->access_lock, flags);
1155 switch (mb[1]) {
1156 case A84_PANIC_RECOVERY:
1157 ql_log(ql_log_info, vha, 0x5019,
1158 "Alert 84XX: panic recovery %04x %04x.\n",
1159 mb[2], mb[3]);
1160 break;
1161 case A84_OP_LOGIN_COMPLETE:
1162 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2];
1163 ql_log(ql_log_info, vha, 0x501a,
1164 "Alert 84XX: firmware version %x.\n",
1165 ha->cs84xx->op_fw_version);
1166 break;
1167 case A84_DIAG_LOGIN_COMPLETE:
1168 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1169 ql_log(ql_log_info, vha, 0x501b,
1170 "Alert 84XX: diagnostic firmware version %x.\n",
1171 ha->cs84xx->diag_fw_version);
1172 break;
1173 case A84_GOLD_LOGIN_COMPLETE:
1174 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2];
1175 ha->cs84xx->fw_update = 1;
1176 ql_log(ql_log_info, vha, 0x501c,
1177 "Alert 84XX: gold firmware version %x.\n",
1178 ha->cs84xx->gold_fw_version);
1179 break;
1180 default:
1181 ql_log(ql_log_warn, vha, 0x501d,
1182 "Alert 84xx: Invalid Alert %04x %04x %04x.\n",
1183 mb[1], mb[2], mb[3]);
1184 }
1185 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags);
1186 break;
1187 case MBA_DCBX_START:
1188 ql_dbg(ql_dbg_async, vha, 0x501e,
1189 "DCBX Started -- %04x %04x %04x.\n",
1190 mb[1], mb[2], mb[3]);
1191 break;
1192 case MBA_DCBX_PARAM_UPDATE:
1193 ql_dbg(ql_dbg_async, vha, 0x501f,
1194 "DCBX Parameters Updated -- %04x %04x %04x.\n",
1195 mb[1], mb[2], mb[3]);
1196 break;
1197 case MBA_FCF_CONF_ERR:
1198 ql_dbg(ql_dbg_async, vha, 0x5020,
1199 "FCF Configuration Error -- %04x %04x %04x.\n",
1200 mb[1], mb[2], mb[3]);
1201 break;
1202 case MBA_IDC_NOTIFY:
1203 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) {
1204 mb[4] = RD_REG_WORD(®24->mailbox4);
1205 if (((mb[2] & 0x7fff) == MBC_PORT_RESET ||
1206 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) &&
1207 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) {
1208 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
1209 /*
1210 * Extend loop down timer since port is active.
1211 */
1212 if (atomic_read(&vha->loop_state) == LOOP_DOWN)
1213 atomic_set(&vha->loop_down_timer,
1214 LOOP_DOWN_TIME);
1215 qla2xxx_wake_dpc(vha);
1216 }
1217 }
1218 /* fall through */
1219 case MBA_IDC_COMPLETE:
1220 if (ha->notify_lb_portup_comp && !vha->vp_idx)
1221 complete(&ha->lb_portup_comp);
1222 /* Fallthru */
1223 case MBA_IDC_TIME_EXT:
1224 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) ||
1225 IS_QLA8044(ha))
1226 qla81xx_idc_event(vha, mb[0], mb[1]);
1227 break;
1228
1229 case MBA_IDC_AEN:
1230 mb[4] = RD_REG_WORD(®24->mailbox4);
1231 mb[5] = RD_REG_WORD(®24->mailbox5);
1232 mb[6] = RD_REG_WORD(®24->mailbox6);
1233 mb[7] = RD_REG_WORD(®24->mailbox7);
1234 qla83xx_handle_8200_aen(vha, mb);
1235 break;
1236
1237 case MBA_DPORT_DIAGNOSTICS:
1238 ql_dbg(ql_dbg_async, vha, 0x5052,
1239 "D-Port Diagnostics: %04x result=%s\n",
1240 mb[0],
1241 mb[1] == 0 ? "start" :
1242 mb[1] == 1 ? "done (pass)" :
1243 mb[1] == 2 ? "done (error)" : "other");
1244 break;
1245
1246 case MBA_TEMPERATURE_ALERT:
1247 ql_dbg(ql_dbg_async, vha, 0x505e,
1248 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]);
1249 if (mb[1] == 0x12)
1250 schedule_work(&ha->board_disable);
1251 break;
1252
1253 case MBA_TRANS_INSERT:
1254 ql_dbg(ql_dbg_async, vha, 0x5091,
1255 "Transceiver Insertion: %04x\n", mb[1]);
1256 break;
1257
1258 default:
1259 ql_dbg(ql_dbg_async, vha, 0x5057,
1260 "Unknown AEN:%04x %04x %04x %04x\n",
1261 mb[0], mb[1], mb[2], mb[3]);
1262 }
1263
1264 qlt_async_event(mb[0], vha, mb);
1265
1266 if (!vha->vp_idx && ha->num_vhosts)
1267 qla2x00_alert_all_vps(rsp, mb);
1268 }
1269
1270 /**
1271 * qla2x00_process_completed_request() - Process a Fast Post response.
1272 * @vha: SCSI driver HA context
1273 * @req: request queue
1274 * @index: SRB index
1275 */
1276 void
qla2x00_process_completed_request(struct scsi_qla_host * vha,struct req_que * req,uint32_t index)1277 qla2x00_process_completed_request(struct scsi_qla_host *vha,
1278 struct req_que *req, uint32_t index)
1279 {
1280 srb_t *sp;
1281 struct qla_hw_data *ha = vha->hw;
1282
1283 /* Validate handle. */
1284 if (index >= req->num_outstanding_cmds) {
1285 ql_log(ql_log_warn, vha, 0x3014,
1286 "Invalid SCSI command index (%x).\n", index);
1287
1288 if (IS_P3P_TYPE(ha))
1289 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1290 else
1291 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1292 return;
1293 }
1294
1295 sp = req->outstanding_cmds[index];
1296 if (sp) {
1297 /* Free outstanding command slot. */
1298 req->outstanding_cmds[index] = NULL;
1299
1300 /* Save ISP completion status */
1301 sp->done(sp, DID_OK << 16);
1302 } else {
1303 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n");
1304
1305 if (IS_P3P_TYPE(ha))
1306 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1307 else
1308 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1309 }
1310 }
1311
1312 srb_t *
qla2x00_get_sp_from_handle(scsi_qla_host_t * vha,const char * func,struct req_que * req,void * iocb)1313 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func,
1314 struct req_que *req, void *iocb)
1315 {
1316 struct qla_hw_data *ha = vha->hw;
1317 sts_entry_t *pkt = iocb;
1318 srb_t *sp = NULL;
1319 uint16_t index;
1320
1321 index = LSW(pkt->handle);
1322 if (index >= req->num_outstanding_cmds) {
1323 ql_log(ql_log_warn, vha, 0x5031,
1324 "Invalid command index (%x) type %8ph.\n",
1325 index, iocb);
1326 if (IS_P3P_TYPE(ha))
1327 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1328 else
1329 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1330 goto done;
1331 }
1332 sp = req->outstanding_cmds[index];
1333 if (!sp) {
1334 ql_log(ql_log_warn, vha, 0x5032,
1335 "Invalid completion handle (%x) -- timed-out.\n", index);
1336 return sp;
1337 }
1338 if (sp->handle != index) {
1339 ql_log(ql_log_warn, vha, 0x5033,
1340 "SRB handle (%x) mismatch %x.\n", sp->handle, index);
1341 return NULL;
1342 }
1343
1344 req->outstanding_cmds[index] = NULL;
1345
1346 done:
1347 return sp;
1348 }
1349
1350 static void
qla2x00_mbx_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct mbx_entry * mbx)1351 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1352 struct mbx_entry *mbx)
1353 {
1354 const char func[] = "MBX-IOCB";
1355 const char *type;
1356 fc_port_t *fcport;
1357 srb_t *sp;
1358 struct srb_iocb *lio;
1359 uint16_t *data;
1360 uint16_t status;
1361
1362 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx);
1363 if (!sp)
1364 return;
1365
1366 lio = &sp->u.iocb_cmd;
1367 type = sp->name;
1368 fcport = sp->fcport;
1369 data = lio->u.logio.data;
1370
1371 data[0] = MBS_COMMAND_ERROR;
1372 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1373 QLA_LOGIO_LOGIN_RETRIED : 0;
1374 if (mbx->entry_status) {
1375 ql_dbg(ql_dbg_async, vha, 0x5043,
1376 "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
1377 "entry-status=%x status=%x state-flag=%x "
1378 "status-flags=%x.\n", type, sp->handle,
1379 fcport->d_id.b.domain, fcport->d_id.b.area,
1380 fcport->d_id.b.al_pa, mbx->entry_status,
1381 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
1382 le16_to_cpu(mbx->status_flags));
1383
1384 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
1385 mbx, sizeof(*mbx));
1386
1387 goto logio_done;
1388 }
1389
1390 status = le16_to_cpu(mbx->status);
1391 if (status == 0x30 && sp->type == SRB_LOGIN_CMD &&
1392 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE)
1393 status = 0;
1394 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
1395 ql_dbg(ql_dbg_async, vha, 0x5045,
1396 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
1397 type, sp->handle, fcport->d_id.b.domain,
1398 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1399 le16_to_cpu(mbx->mb1));
1400
1401 data[0] = MBS_COMMAND_COMPLETE;
1402 if (sp->type == SRB_LOGIN_CMD) {
1403 fcport->port_type = FCT_TARGET;
1404 if (le16_to_cpu(mbx->mb1) & BIT_0)
1405 fcport->port_type = FCT_INITIATOR;
1406 else if (le16_to_cpu(mbx->mb1) & BIT_1)
1407 fcport->flags |= FCF_FCP2_DEVICE;
1408 }
1409 goto logio_done;
1410 }
1411
1412 data[0] = le16_to_cpu(mbx->mb0);
1413 switch (data[0]) {
1414 case MBS_PORT_ID_USED:
1415 data[1] = le16_to_cpu(mbx->mb1);
1416 break;
1417 case MBS_LOOP_ID_USED:
1418 break;
1419 default:
1420 data[0] = MBS_COMMAND_ERROR;
1421 break;
1422 }
1423
1424 ql_log(ql_log_warn, vha, 0x5046,
1425 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
1426 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
1427 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
1428 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
1429 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
1430 le16_to_cpu(mbx->mb7));
1431
1432 logio_done:
1433 sp->done(sp, 0);
1434 }
1435
1436 static void
qla24xx_mbx_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct mbx_24xx_entry * pkt)1437 qla24xx_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1438 struct mbx_24xx_entry *pkt)
1439 {
1440 const char func[] = "MBX-IOCB2";
1441 srb_t *sp;
1442 struct srb_iocb *si;
1443 u16 sz, i;
1444 int res;
1445
1446 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1447 if (!sp)
1448 return;
1449
1450 si = &sp->u.iocb_cmd;
1451 sz = min(ARRAY_SIZE(pkt->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.in_mb));
1452
1453 for (i = 0; i < sz; i++)
1454 si->u.mbx.in_mb[i] = le16_to_cpu(pkt->mb[i]);
1455
1456 res = (si->u.mbx.in_mb[0] & MBS_MASK);
1457
1458 sp->done(sp, res);
1459 }
1460
1461 static void
qla24xxx_nack_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct nack_to_isp * pkt)1462 qla24xxx_nack_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1463 struct nack_to_isp *pkt)
1464 {
1465 const char func[] = "nack";
1466 srb_t *sp;
1467 int res = 0;
1468
1469 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1470 if (!sp)
1471 return;
1472
1473 if (pkt->u.isp2x.status != cpu_to_le16(NOTIFY_ACK_SUCCESS))
1474 res = QLA_FUNCTION_FAILED;
1475
1476 sp->done(sp, res);
1477 }
1478
1479 static void
qla2x00_ct_entry(scsi_qla_host_t * vha,struct req_que * req,sts_entry_t * pkt,int iocb_type)1480 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1481 sts_entry_t *pkt, int iocb_type)
1482 {
1483 const char func[] = "CT_IOCB";
1484 const char *type;
1485 srb_t *sp;
1486 struct bsg_job *bsg_job;
1487 struct fc_bsg_reply *bsg_reply;
1488 uint16_t comp_status;
1489 int res = 0;
1490
1491 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1492 if (!sp)
1493 return;
1494
1495 switch (sp->type) {
1496 case SRB_CT_CMD:
1497 bsg_job = sp->u.bsg_job;
1498 bsg_reply = bsg_job->reply;
1499
1500 type = "ct pass-through";
1501
1502 comp_status = le16_to_cpu(pkt->comp_status);
1503
1504 /*
1505 * return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1506 * fc payload to the caller
1507 */
1508 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1509 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
1510
1511 if (comp_status != CS_COMPLETE) {
1512 if (comp_status == CS_DATA_UNDERRUN) {
1513 res = DID_OK << 16;
1514 bsg_reply->reply_payload_rcv_len =
1515 le16_to_cpu(pkt->rsp_info_len);
1516
1517 ql_log(ql_log_warn, vha, 0x5048,
1518 "CT pass-through-%s error comp_status=0x%x total_byte=0x%x.\n",
1519 type, comp_status,
1520 bsg_reply->reply_payload_rcv_len);
1521 } else {
1522 ql_log(ql_log_warn, vha, 0x5049,
1523 "CT pass-through-%s error comp_status=0x%x.\n",
1524 type, comp_status);
1525 res = DID_ERROR << 16;
1526 bsg_reply->reply_payload_rcv_len = 0;
1527 }
1528 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
1529 pkt, sizeof(*pkt));
1530 } else {
1531 res = DID_OK << 16;
1532 bsg_reply->reply_payload_rcv_len =
1533 bsg_job->reply_payload.payload_len;
1534 bsg_job->reply_len = 0;
1535 }
1536 break;
1537 case SRB_CT_PTHRU_CMD:
1538 /*
1539 * borrowing sts_entry_24xx.comp_status.
1540 * same location as ct_entry_24xx.comp_status
1541 */
1542 res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
1543 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1544 sp->name);
1545 break;
1546 }
1547
1548 sp->done(sp, res);
1549 }
1550
1551 static void
qla24xx_els_ct_entry(scsi_qla_host_t * vha,struct req_que * req,struct sts_entry_24xx * pkt,int iocb_type)1552 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
1553 struct sts_entry_24xx *pkt, int iocb_type)
1554 {
1555 const char func[] = "ELS_CT_IOCB";
1556 const char *type;
1557 srb_t *sp;
1558 struct bsg_job *bsg_job;
1559 struct fc_bsg_reply *bsg_reply;
1560 uint16_t comp_status;
1561 uint32_t fw_status[3];
1562 int res;
1563 struct srb_iocb *els;
1564
1565 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
1566 if (!sp)
1567 return;
1568
1569 type = NULL;
1570 switch (sp->type) {
1571 case SRB_ELS_CMD_RPT:
1572 case SRB_ELS_CMD_HST:
1573 type = "els";
1574 break;
1575 case SRB_CT_CMD:
1576 type = "ct pass-through";
1577 break;
1578 case SRB_ELS_DCMD:
1579 type = "Driver ELS logo";
1580 if (iocb_type != ELS_IOCB_TYPE) {
1581 ql_dbg(ql_dbg_user, vha, 0x5047,
1582 "Completing %s: (%p) type=%d.\n",
1583 type, sp, sp->type);
1584 sp->done(sp, 0);
1585 return;
1586 }
1587 break;
1588 case SRB_CT_PTHRU_CMD:
1589 /* borrowing sts_entry_24xx.comp_status.
1590 same location as ct_entry_24xx.comp_status
1591 */
1592 res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
1593 (struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
1594 sp->name);
1595 sp->done(sp, res);
1596 return;
1597 default:
1598 ql_dbg(ql_dbg_user, vha, 0x503e,
1599 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type);
1600 return;
1601 }
1602
1603 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status);
1604 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_1);
1605 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->error_subcode_2);
1606
1607 if (iocb_type == ELS_IOCB_TYPE) {
1608 els = &sp->u.iocb_cmd;
1609 els->u.els_plogi.fw_status[0] = fw_status[0];
1610 els->u.els_plogi.fw_status[1] = fw_status[1];
1611 els->u.els_plogi.fw_status[2] = fw_status[2];
1612 els->u.els_plogi.comp_status = fw_status[0];
1613 if (comp_status == CS_COMPLETE) {
1614 res = DID_OK << 16;
1615 } else {
1616 if (comp_status == CS_DATA_UNDERRUN) {
1617 res = DID_OK << 16;
1618 els->u.els_plogi.len =
1619 le16_to_cpu(((struct els_sts_entry_24xx *)
1620 pkt)->total_byte_count);
1621 } else {
1622 els->u.els_plogi.len = 0;
1623 res = DID_ERROR << 16;
1624 }
1625 }
1626 ql_dbg(ql_dbg_user, vha, 0x503f,
1627 "ELS IOCB Done -%s error hdl=%x comp_status=0x%x error subcode 1=0x%x error subcode 2=0x%x total_byte=0x%x\n",
1628 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1629 le16_to_cpu(((struct els_sts_entry_24xx *)
1630 pkt)->total_byte_count));
1631 goto els_ct_done;
1632 }
1633
1634 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT
1635 * fc payload to the caller
1636 */
1637 bsg_job = sp->u.bsg_job;
1638 bsg_reply = bsg_job->reply;
1639 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK;
1640 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status);
1641
1642 if (comp_status != CS_COMPLETE) {
1643 if (comp_status == CS_DATA_UNDERRUN) {
1644 res = DID_OK << 16;
1645 bsg_reply->reply_payload_rcv_len =
1646 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count);
1647
1648 ql_dbg(ql_dbg_user, vha, 0x503f,
1649 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1650 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
1651 type, sp->handle, comp_status, fw_status[1], fw_status[2],
1652 le16_to_cpu(((struct els_sts_entry_24xx *)
1653 pkt)->total_byte_count));
1654 } else {
1655 ql_dbg(ql_dbg_user, vha, 0x5040,
1656 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
1657 "error subcode 1=0x%x error subcode 2=0x%x.\n",
1658 type, sp->handle, comp_status,
1659 le16_to_cpu(((struct els_sts_entry_24xx *)
1660 pkt)->error_subcode_1),
1661 le16_to_cpu(((struct els_sts_entry_24xx *)
1662 pkt)->error_subcode_2));
1663 res = DID_ERROR << 16;
1664 bsg_reply->reply_payload_rcv_len = 0;
1665 }
1666 memcpy(bsg_job->reply + sizeof(struct fc_bsg_reply),
1667 fw_status, sizeof(fw_status));
1668 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056,
1669 pkt, sizeof(*pkt));
1670 }
1671 else {
1672 res = DID_OK << 16;
1673 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len;
1674 bsg_job->reply_len = 0;
1675 }
1676 els_ct_done:
1677
1678 sp->done(sp, res);
1679 }
1680
1681 static void
qla24xx_logio_entry(scsi_qla_host_t * vha,struct req_que * req,struct logio_entry_24xx * logio)1682 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
1683 struct logio_entry_24xx *logio)
1684 {
1685 const char func[] = "LOGIO-IOCB";
1686 const char *type;
1687 fc_port_t *fcport;
1688 srb_t *sp;
1689 struct srb_iocb *lio;
1690 uint16_t *data;
1691 uint32_t iop[2];
1692
1693 sp = qla2x00_get_sp_from_handle(vha, func, req, logio);
1694 if (!sp)
1695 return;
1696
1697 lio = &sp->u.iocb_cmd;
1698 type = sp->name;
1699 fcport = sp->fcport;
1700 data = lio->u.logio.data;
1701
1702 data[0] = MBS_COMMAND_ERROR;
1703 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ?
1704 QLA_LOGIO_LOGIN_RETRIED : 0;
1705 if (logio->entry_status) {
1706 ql_log(ql_log_warn, fcport->vha, 0x5034,
1707 "Async-%s error entry - %8phC hdl=%x"
1708 "portid=%02x%02x%02x entry-status=%x.\n",
1709 type, fcport->port_name, sp->handle, fcport->d_id.b.domain,
1710 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1711 logio->entry_status);
1712 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
1713 logio, sizeof(*logio));
1714
1715 goto logio_done;
1716 }
1717
1718 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
1719 ql_dbg(ql_dbg_async, fcport->vha, 0x5036,
1720 "Async-%s complete - %8phC hdl=%x portid=%02x%02x%02x "
1721 "iop0=%x.\n", type, fcport->port_name, sp->handle,
1722 fcport->d_id.b.domain,
1723 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1724 le32_to_cpu(logio->io_parameter[0]));
1725
1726 vha->hw->exch_starvation = 0;
1727 data[0] = MBS_COMMAND_COMPLETE;
1728
1729 if (sp->type == SRB_PRLI_CMD) {
1730 lio->u.logio.iop[0] =
1731 le32_to_cpu(logio->io_parameter[0]);
1732 lio->u.logio.iop[1] =
1733 le32_to_cpu(logio->io_parameter[1]);
1734 goto logio_done;
1735 }
1736
1737 if (sp->type != SRB_LOGIN_CMD)
1738 goto logio_done;
1739
1740 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1741 if (iop[0] & BIT_4) {
1742 fcport->port_type = FCT_TARGET;
1743 if (iop[0] & BIT_8)
1744 fcport->flags |= FCF_FCP2_DEVICE;
1745 } else if (iop[0] & BIT_5)
1746 fcport->port_type = FCT_INITIATOR;
1747
1748 if (iop[0] & BIT_7)
1749 fcport->flags |= FCF_CONF_COMP_SUPPORTED;
1750
1751 if (logio->io_parameter[7] || logio->io_parameter[8])
1752 fcport->supported_classes |= FC_COS_CLASS2;
1753 if (logio->io_parameter[9] || logio->io_parameter[10])
1754 fcport->supported_classes |= FC_COS_CLASS3;
1755
1756 goto logio_done;
1757 }
1758
1759 iop[0] = le32_to_cpu(logio->io_parameter[0]);
1760 iop[1] = le32_to_cpu(logio->io_parameter[1]);
1761 lio->u.logio.iop[0] = iop[0];
1762 lio->u.logio.iop[1] = iop[1];
1763 switch (iop[0]) {
1764 case LSC_SCODE_PORTID_USED:
1765 data[0] = MBS_PORT_ID_USED;
1766 data[1] = LSW(iop[1]);
1767 break;
1768 case LSC_SCODE_NPORT_USED:
1769 data[0] = MBS_LOOP_ID_USED;
1770 break;
1771 case LSC_SCODE_CMD_FAILED:
1772 if (iop[1] == 0x0606) {
1773 /*
1774 * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI,
1775 * Target side acked.
1776 */
1777 data[0] = MBS_COMMAND_COMPLETE;
1778 goto logio_done;
1779 }
1780 data[0] = MBS_COMMAND_ERROR;
1781 break;
1782 case LSC_SCODE_NOXCB:
1783 vha->hw->exch_starvation++;
1784 if (vha->hw->exch_starvation > 5) {
1785 ql_log(ql_log_warn, vha, 0xd046,
1786 "Exchange starvation. Resetting RISC\n");
1787
1788 vha->hw->exch_starvation = 0;
1789
1790 if (IS_P3P_TYPE(vha->hw))
1791 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
1792 else
1793 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
1794 qla2xxx_wake_dpc(vha);
1795 }
1796 /* fall through */
1797 default:
1798 data[0] = MBS_COMMAND_ERROR;
1799 break;
1800 }
1801
1802 ql_dbg(ql_dbg_async, fcport->vha, 0x5037,
1803 "Async-%s failed - %8phC hdl=%x portid=%02x%02x%02x comp=%x "
1804 "iop0=%x iop1=%x.\n", type, fcport->port_name,
1805 sp->handle, fcport->d_id.b.domain,
1806 fcport->d_id.b.area, fcport->d_id.b.al_pa,
1807 le16_to_cpu(logio->comp_status),
1808 le32_to_cpu(logio->io_parameter[0]),
1809 le32_to_cpu(logio->io_parameter[1]));
1810
1811 logio_done:
1812 sp->done(sp, 0);
1813 }
1814
1815 static void
qla24xx_tm_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,void * tsk)1816 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk)
1817 {
1818 const char func[] = "TMF-IOCB";
1819 const char *type;
1820 fc_port_t *fcport;
1821 srb_t *sp;
1822 struct srb_iocb *iocb;
1823 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1824
1825 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk);
1826 if (!sp)
1827 return;
1828
1829 iocb = &sp->u.iocb_cmd;
1830 type = sp->name;
1831 fcport = sp->fcport;
1832 iocb->u.tmf.data = QLA_SUCCESS;
1833
1834 if (sts->entry_status) {
1835 ql_log(ql_log_warn, fcport->vha, 0x5038,
1836 "Async-%s error - hdl=%x entry-status(%x).\n",
1837 type, sp->handle, sts->entry_status);
1838 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1839 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) {
1840 ql_log(ql_log_warn, fcport->vha, 0x5039,
1841 "Async-%s error - hdl=%x completion status(%x).\n",
1842 type, sp->handle, sts->comp_status);
1843 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1844 } else if ((le16_to_cpu(sts->scsi_status) &
1845 SS_RESPONSE_INFO_LEN_VALID)) {
1846 if (le32_to_cpu(sts->rsp_data_len) < 4) {
1847 ql_log(ql_log_warn, fcport->vha, 0x503b,
1848 "Async-%s error - hdl=%x not enough response(%d).\n",
1849 type, sp->handle, sts->rsp_data_len);
1850 } else if (sts->data[3]) {
1851 ql_log(ql_log_warn, fcport->vha, 0x503c,
1852 "Async-%s error - hdl=%x response(%x).\n",
1853 type, sp->handle, sts->data[3]);
1854 iocb->u.tmf.data = QLA_FUNCTION_FAILED;
1855 }
1856 }
1857
1858 if (iocb->u.tmf.data != QLA_SUCCESS)
1859 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, sp->vha, 0x5055,
1860 sts, sizeof(*sts));
1861
1862 sp->done(sp, 0);
1863 }
1864
qla24xx_nvme_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,void * tsk,srb_t * sp)1865 static void qla24xx_nvme_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
1866 void *tsk, srb_t *sp)
1867 {
1868 fc_port_t *fcport;
1869 struct srb_iocb *iocb;
1870 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk;
1871 uint16_t state_flags;
1872 struct nvmefc_fcp_req *fd;
1873 uint16_t ret = QLA_SUCCESS;
1874 uint16_t comp_status = le16_to_cpu(sts->comp_status);
1875
1876 iocb = &sp->u.iocb_cmd;
1877 fcport = sp->fcport;
1878 iocb->u.nvme.comp_status = comp_status;
1879 state_flags = le16_to_cpu(sts->state_flags);
1880 fd = iocb->u.nvme.desc;
1881
1882 if (unlikely(iocb->u.nvme.aen_op))
1883 atomic_dec(&sp->vha->hw->nvme_active_aen_cnt);
1884
1885 /*
1886 * State flags: Bit 6 and 0.
1887 * If 0 is set, we don't care about 6.
1888 * both cases resp was dma'd to host buffer
1889 * if both are 0, that is good path case.
1890 * if six is set and 0 is clear, we need to
1891 * copy resp data from status iocb to resp buffer.
1892 */
1893 if (!(state_flags & (SF_FCP_RSP_DMA | SF_NVME_ERSP))) {
1894 iocb->u.nvme.rsp_pyld_len = 0;
1895 } else if ((state_flags & SF_FCP_RSP_DMA)) {
1896 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1897 } else if (state_flags & SF_NVME_ERSP) {
1898 uint32_t *inbuf, *outbuf;
1899 uint16_t iter;
1900
1901 inbuf = (uint32_t *)&sts->nvme_ersp_data;
1902 outbuf = (uint32_t *)fd->rspaddr;
1903 iocb->u.nvme.rsp_pyld_len = le16_to_cpu(sts->nvme_rsp_pyld_len);
1904 iter = iocb->u.nvme.rsp_pyld_len >> 2;
1905 for (; iter; iter--)
1906 *outbuf++ = swab32(*inbuf++);
1907 } else { /* unhandled case */
1908 ql_log(ql_log_warn, fcport->vha, 0x503a,
1909 "NVME-%s error. Unhandled state_flags of %x\n",
1910 sp->name, state_flags);
1911 }
1912
1913 fd->transferred_length = fd->payload_length -
1914 le32_to_cpu(sts->residual_len);
1915
1916 if (unlikely(comp_status != CS_COMPLETE))
1917 ql_log(ql_log_warn, fcport->vha, 0x5060,
1918 "NVME-%s ERR Handling - hdl=%x status(%x) tr_len:%x resid=%x ox_id=%x\n",
1919 sp->name, sp->handle, comp_status,
1920 fd->transferred_length, le32_to_cpu(sts->residual_len),
1921 sts->ox_id);
1922
1923 /*
1924 * If transport error then Failure (HBA rejects request)
1925 * otherwise transport will handle.
1926 */
1927 switch (comp_status) {
1928 case CS_COMPLETE:
1929 break;
1930
1931 case CS_RESET:
1932 case CS_PORT_UNAVAILABLE:
1933 case CS_PORT_LOGGED_OUT:
1934 fcport->nvme_flag |= NVME_FLAG_RESETTING;
1935 /* fall through */
1936 case CS_ABORTED:
1937 case CS_PORT_BUSY:
1938 fd->transferred_length = 0;
1939 iocb->u.nvme.rsp_pyld_len = 0;
1940 ret = QLA_ABORTED;
1941 break;
1942 case CS_DATA_UNDERRUN:
1943 break;
1944 default:
1945 ret = QLA_FUNCTION_FAILED;
1946 break;
1947 }
1948 sp->done(sp, ret);
1949 }
1950
qla_ctrlvp_completed(scsi_qla_host_t * vha,struct req_que * req,struct vp_ctrl_entry_24xx * vce)1951 static void qla_ctrlvp_completed(scsi_qla_host_t *vha, struct req_que *req,
1952 struct vp_ctrl_entry_24xx *vce)
1953 {
1954 const char func[] = "CTRLVP-IOCB";
1955 srb_t *sp;
1956 int rval = QLA_SUCCESS;
1957
1958 sp = qla2x00_get_sp_from_handle(vha, func, req, vce);
1959 if (!sp)
1960 return;
1961
1962 if (vce->entry_status != 0) {
1963 ql_dbg(ql_dbg_vport, vha, 0x10c4,
1964 "%s: Failed to complete IOCB -- error status (%x)\n",
1965 sp->name, vce->entry_status);
1966 rval = QLA_FUNCTION_FAILED;
1967 } else if (vce->comp_status != cpu_to_le16(CS_COMPLETE)) {
1968 ql_dbg(ql_dbg_vport, vha, 0x10c5,
1969 "%s: Failed to complete IOCB -- completion status (%x) vpidx %x\n",
1970 sp->name, le16_to_cpu(vce->comp_status),
1971 le16_to_cpu(vce->vp_idx_failed));
1972 rval = QLA_FUNCTION_FAILED;
1973 } else {
1974 ql_dbg(ql_dbg_vport, vha, 0x10c6,
1975 "Done %s.\n", __func__);
1976 }
1977
1978 sp->rc = rval;
1979 sp->done(sp, rval);
1980 }
1981
1982 /* Process a single response queue entry. */
qla2x00_process_response_entry(struct scsi_qla_host * vha,struct rsp_que * rsp,sts_entry_t * pkt)1983 static void qla2x00_process_response_entry(struct scsi_qla_host *vha,
1984 struct rsp_que *rsp,
1985 sts_entry_t *pkt)
1986 {
1987 sts21_entry_t *sts21_entry;
1988 sts22_entry_t *sts22_entry;
1989 uint16_t handle_cnt;
1990 uint16_t cnt;
1991
1992 switch (pkt->entry_type) {
1993 case STATUS_TYPE:
1994 qla2x00_status_entry(vha, rsp, pkt);
1995 break;
1996 case STATUS_TYPE_21:
1997 sts21_entry = (sts21_entry_t *)pkt;
1998 handle_cnt = sts21_entry->handle_count;
1999 for (cnt = 0; cnt < handle_cnt; cnt++)
2000 qla2x00_process_completed_request(vha, rsp->req,
2001 sts21_entry->handle[cnt]);
2002 break;
2003 case STATUS_TYPE_22:
2004 sts22_entry = (sts22_entry_t *)pkt;
2005 handle_cnt = sts22_entry->handle_count;
2006 for (cnt = 0; cnt < handle_cnt; cnt++)
2007 qla2x00_process_completed_request(vha, rsp->req,
2008 sts22_entry->handle[cnt]);
2009 break;
2010 case STATUS_CONT_TYPE:
2011 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
2012 break;
2013 case MBX_IOCB_TYPE:
2014 qla2x00_mbx_iocb_entry(vha, rsp->req, (struct mbx_entry *)pkt);
2015 break;
2016 case CT_IOCB_TYPE:
2017 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
2018 break;
2019 default:
2020 /* Type Not Supported. */
2021 ql_log(ql_log_warn, vha, 0x504a,
2022 "Received unknown response pkt type %x entry status=%x.\n",
2023 pkt->entry_type, pkt->entry_status);
2024 break;
2025 }
2026 }
2027
2028 /**
2029 * qla2x00_process_response_queue() - Process response queue entries.
2030 * @rsp: response queue
2031 */
2032 void
qla2x00_process_response_queue(struct rsp_que * rsp)2033 qla2x00_process_response_queue(struct rsp_que *rsp)
2034 {
2035 struct scsi_qla_host *vha;
2036 struct qla_hw_data *ha = rsp->hw;
2037 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2038 sts_entry_t *pkt;
2039
2040 vha = pci_get_drvdata(ha->pdev);
2041
2042 if (!vha->flags.online)
2043 return;
2044
2045 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2046 pkt = (sts_entry_t *)rsp->ring_ptr;
2047
2048 rsp->ring_index++;
2049 if (rsp->ring_index == rsp->length) {
2050 rsp->ring_index = 0;
2051 rsp->ring_ptr = rsp->ring;
2052 } else {
2053 rsp->ring_ptr++;
2054 }
2055
2056 if (pkt->entry_status != 0) {
2057 qla2x00_error_entry(vha, rsp, pkt);
2058 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2059 wmb();
2060 continue;
2061 }
2062
2063 qla2x00_process_response_entry(vha, rsp, pkt);
2064 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
2065 wmb();
2066 }
2067
2068 /* Adjust ring index */
2069 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index);
2070 }
2071
2072 static inline void
qla2x00_handle_sense(srb_t * sp,uint8_t * sense_data,uint32_t par_sense_len,uint32_t sense_len,struct rsp_que * rsp,int res)2073 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
2074 uint32_t sense_len, struct rsp_que *rsp, int res)
2075 {
2076 struct scsi_qla_host *vha = sp->vha;
2077 struct scsi_cmnd *cp = GET_CMD_SP(sp);
2078 uint32_t track_sense_len;
2079
2080 if (sense_len >= SCSI_SENSE_BUFFERSIZE)
2081 sense_len = SCSI_SENSE_BUFFERSIZE;
2082
2083 SET_CMD_SENSE_LEN(sp, sense_len);
2084 SET_CMD_SENSE_PTR(sp, cp->sense_buffer);
2085 track_sense_len = sense_len;
2086
2087 if (sense_len > par_sense_len)
2088 sense_len = par_sense_len;
2089
2090 memcpy(cp->sense_buffer, sense_data, sense_len);
2091
2092 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len);
2093 track_sense_len -= sense_len;
2094 SET_CMD_SENSE_LEN(sp, track_sense_len);
2095
2096 if (track_sense_len != 0) {
2097 rsp->status_srb = sp;
2098 cp->result = res;
2099 }
2100
2101 if (sense_len) {
2102 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
2103 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n",
2104 sp->vha->host_no, cp->device->id, cp->device->lun,
2105 cp);
2106 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
2107 cp->sense_buffer, sense_len);
2108 }
2109 }
2110
2111 struct scsi_dif_tuple {
2112 __be16 guard; /* Checksum */
2113 __be16 app_tag; /* APPL identifier */
2114 __be32 ref_tag; /* Target LBA or indirect LBA */
2115 };
2116
2117 /*
2118 * Checks the guard or meta-data for the type of error
2119 * detected by the HBA. In case of errors, we set the
2120 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
2121 * to indicate to the kernel that the HBA detected error.
2122 */
2123 static inline int
qla2x00_handle_dif_error(srb_t * sp,struct sts_entry_24xx * sts24)2124 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
2125 {
2126 struct scsi_qla_host *vha = sp->vha;
2127 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2128 uint8_t *ap = &sts24->data[12];
2129 uint8_t *ep = &sts24->data[20];
2130 uint32_t e_ref_tag, a_ref_tag;
2131 uint16_t e_app_tag, a_app_tag;
2132 uint16_t e_guard, a_guard;
2133
2134 /*
2135 * swab32 of the "data" field in the beginning of qla2x00_status_entry()
2136 * would make guard field appear at offset 2
2137 */
2138 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2));
2139 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0));
2140 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4));
2141 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2));
2142 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0));
2143 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4));
2144
2145 ql_dbg(ql_dbg_io, vha, 0x3023,
2146 "iocb(s) %p Returned STATUS.\n", sts24);
2147
2148 ql_dbg(ql_dbg_io, vha, 0x3024,
2149 "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
2150 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
2151 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n",
2152 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
2153 a_app_tag, e_app_tag, a_guard, e_guard);
2154
2155 /*
2156 * Ignore sector if:
2157 * For type 3: ref & app tag is all 'f's
2158 * For type 0,1,2: app tag is all 'f's
2159 */
2160 if ((a_app_tag == T10_PI_APP_ESCAPE) &&
2161 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) ||
2162 (a_ref_tag == T10_PI_REF_ESCAPE))) {
2163 uint32_t blocks_done, resid;
2164 sector_t lba_s = scsi_get_lba(cmd);
2165
2166 /* 2TB boundary case covered automatically with this */
2167 blocks_done = e_ref_tag - (uint32_t)lba_s + 1;
2168
2169 resid = scsi_bufflen(cmd) - (blocks_done *
2170 cmd->device->sector_size);
2171
2172 scsi_set_resid(cmd, resid);
2173 cmd->result = DID_OK << 16;
2174
2175 /* Update protection tag */
2176 if (scsi_prot_sg_count(cmd)) {
2177 uint32_t i, j = 0, k = 0, num_ent;
2178 struct scatterlist *sg;
2179 struct t10_pi_tuple *spt;
2180
2181 /* Patch the corresponding protection tags */
2182 scsi_for_each_prot_sg(cmd, sg,
2183 scsi_prot_sg_count(cmd), i) {
2184 num_ent = sg_dma_len(sg) / 8;
2185 if (k + num_ent < blocks_done) {
2186 k += num_ent;
2187 continue;
2188 }
2189 j = blocks_done - k - 1;
2190 k = blocks_done;
2191 break;
2192 }
2193
2194 if (k != blocks_done) {
2195 ql_log(ql_log_warn, vha, 0x302f,
2196 "unexpected tag values tag:lba=%x:%llx)\n",
2197 e_ref_tag, (unsigned long long)lba_s);
2198 return 1;
2199 }
2200
2201 spt = page_address(sg_page(sg)) + sg->offset;
2202 spt += j;
2203
2204 spt->app_tag = T10_PI_APP_ESCAPE;
2205 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3)
2206 spt->ref_tag = T10_PI_REF_ESCAPE;
2207 }
2208
2209 return 0;
2210 }
2211
2212 /* check guard */
2213 if (e_guard != a_guard) {
2214 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2215 0x10, 0x1);
2216 set_driver_byte(cmd, DRIVER_SENSE);
2217 set_host_byte(cmd, DID_ABORT);
2218 cmd->result |= SAM_STAT_CHECK_CONDITION;
2219 return 1;
2220 }
2221
2222 /* check ref tag */
2223 if (e_ref_tag != a_ref_tag) {
2224 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2225 0x10, 0x3);
2226 set_driver_byte(cmd, DRIVER_SENSE);
2227 set_host_byte(cmd, DID_ABORT);
2228 cmd->result |= SAM_STAT_CHECK_CONDITION;
2229 return 1;
2230 }
2231
2232 /* check appl tag */
2233 if (e_app_tag != a_app_tag) {
2234 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
2235 0x10, 0x2);
2236 set_driver_byte(cmd, DRIVER_SENSE);
2237 set_host_byte(cmd, DID_ABORT);
2238 cmd->result |= SAM_STAT_CHECK_CONDITION;
2239 return 1;
2240 }
2241
2242 return 1;
2243 }
2244
2245 static void
qla25xx_process_bidir_status_iocb(scsi_qla_host_t * vha,void * pkt,struct req_que * req,uint32_t index)2246 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt,
2247 struct req_que *req, uint32_t index)
2248 {
2249 struct qla_hw_data *ha = vha->hw;
2250 srb_t *sp;
2251 uint16_t comp_status;
2252 uint16_t scsi_status;
2253 uint16_t thread_id;
2254 uint32_t rval = EXT_STATUS_OK;
2255 struct bsg_job *bsg_job = NULL;
2256 struct fc_bsg_request *bsg_request;
2257 struct fc_bsg_reply *bsg_reply;
2258 sts_entry_t *sts = pkt;
2259 struct sts_entry_24xx *sts24 = pkt;
2260
2261 /* Validate handle. */
2262 if (index >= req->num_outstanding_cmds) {
2263 ql_log(ql_log_warn, vha, 0x70af,
2264 "Invalid SCSI completion handle 0x%x.\n", index);
2265 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2266 return;
2267 }
2268
2269 sp = req->outstanding_cmds[index];
2270 if (!sp) {
2271 ql_log(ql_log_warn, vha, 0x70b0,
2272 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n",
2273 req->id, index);
2274
2275 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2276 return;
2277 }
2278
2279 /* Free outstanding command slot. */
2280 req->outstanding_cmds[index] = NULL;
2281 bsg_job = sp->u.bsg_job;
2282 bsg_request = bsg_job->request;
2283 bsg_reply = bsg_job->reply;
2284
2285 if (IS_FWI2_CAPABLE(ha)) {
2286 comp_status = le16_to_cpu(sts24->comp_status);
2287 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2288 } else {
2289 comp_status = le16_to_cpu(sts->comp_status);
2290 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2291 }
2292
2293 thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1];
2294 switch (comp_status) {
2295 case CS_COMPLETE:
2296 if (scsi_status == 0) {
2297 bsg_reply->reply_payload_rcv_len =
2298 bsg_job->reply_payload.payload_len;
2299 vha->qla_stats.input_bytes +=
2300 bsg_reply->reply_payload_rcv_len;
2301 vha->qla_stats.input_requests++;
2302 rval = EXT_STATUS_OK;
2303 }
2304 goto done;
2305
2306 case CS_DATA_OVERRUN:
2307 ql_dbg(ql_dbg_user, vha, 0x70b1,
2308 "Command completed with data overrun thread_id=%d\n",
2309 thread_id);
2310 rval = EXT_STATUS_DATA_OVERRUN;
2311 break;
2312
2313 case CS_DATA_UNDERRUN:
2314 ql_dbg(ql_dbg_user, vha, 0x70b2,
2315 "Command completed with data underrun thread_id=%d\n",
2316 thread_id);
2317 rval = EXT_STATUS_DATA_UNDERRUN;
2318 break;
2319 case CS_BIDIR_RD_OVERRUN:
2320 ql_dbg(ql_dbg_user, vha, 0x70b3,
2321 "Command completed with read data overrun thread_id=%d\n",
2322 thread_id);
2323 rval = EXT_STATUS_DATA_OVERRUN;
2324 break;
2325
2326 case CS_BIDIR_RD_WR_OVERRUN:
2327 ql_dbg(ql_dbg_user, vha, 0x70b4,
2328 "Command completed with read and write data overrun "
2329 "thread_id=%d\n", thread_id);
2330 rval = EXT_STATUS_DATA_OVERRUN;
2331 break;
2332
2333 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN:
2334 ql_dbg(ql_dbg_user, vha, 0x70b5,
2335 "Command completed with read data over and write data "
2336 "underrun thread_id=%d\n", thread_id);
2337 rval = EXT_STATUS_DATA_OVERRUN;
2338 break;
2339
2340 case CS_BIDIR_RD_UNDERRUN:
2341 ql_dbg(ql_dbg_user, vha, 0x70b6,
2342 "Command completed with read data underrun "
2343 "thread_id=%d\n", thread_id);
2344 rval = EXT_STATUS_DATA_UNDERRUN;
2345 break;
2346
2347 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN:
2348 ql_dbg(ql_dbg_user, vha, 0x70b7,
2349 "Command completed with read data under and write data "
2350 "overrun thread_id=%d\n", thread_id);
2351 rval = EXT_STATUS_DATA_UNDERRUN;
2352 break;
2353
2354 case CS_BIDIR_RD_WR_UNDERRUN:
2355 ql_dbg(ql_dbg_user, vha, 0x70b8,
2356 "Command completed with read and write data underrun "
2357 "thread_id=%d\n", thread_id);
2358 rval = EXT_STATUS_DATA_UNDERRUN;
2359 break;
2360
2361 case CS_BIDIR_DMA:
2362 ql_dbg(ql_dbg_user, vha, 0x70b9,
2363 "Command completed with data DMA error thread_id=%d\n",
2364 thread_id);
2365 rval = EXT_STATUS_DMA_ERR;
2366 break;
2367
2368 case CS_TIMEOUT:
2369 ql_dbg(ql_dbg_user, vha, 0x70ba,
2370 "Command completed with timeout thread_id=%d\n",
2371 thread_id);
2372 rval = EXT_STATUS_TIMEOUT;
2373 break;
2374 default:
2375 ql_dbg(ql_dbg_user, vha, 0x70bb,
2376 "Command completed with completion status=0x%x "
2377 "thread_id=%d\n", comp_status, thread_id);
2378 rval = EXT_STATUS_ERR;
2379 break;
2380 }
2381 bsg_reply->reply_payload_rcv_len = 0;
2382
2383 done:
2384 /* Return the vendor specific reply to API */
2385 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval;
2386 bsg_job->reply_len = sizeof(struct fc_bsg_reply);
2387 /* Always return DID_OK, bsg will send the vendor specific response
2388 * in this case only */
2389 sp->done(sp, DID_OK << 16);
2390
2391 }
2392
2393 /**
2394 * qla2x00_status_entry() - Process a Status IOCB entry.
2395 * @vha: SCSI driver HA context
2396 * @rsp: response queue
2397 * @pkt: Entry pointer
2398 */
2399 static void
qla2x00_status_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,void * pkt)2400 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
2401 {
2402 srb_t *sp;
2403 fc_port_t *fcport;
2404 struct scsi_cmnd *cp;
2405 sts_entry_t *sts = pkt;
2406 struct sts_entry_24xx *sts24 = pkt;
2407 uint16_t comp_status;
2408 uint16_t scsi_status;
2409 uint16_t ox_id;
2410 uint8_t lscsi_status;
2411 int32_t resid;
2412 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len,
2413 fw_resid_len;
2414 uint8_t *rsp_info, *sense_data;
2415 struct qla_hw_data *ha = vha->hw;
2416 uint32_t handle;
2417 uint16_t que;
2418 struct req_que *req;
2419 int logit = 1;
2420 int res = 0;
2421 uint16_t state_flags = 0;
2422 uint16_t retry_delay = 0;
2423
2424 if (IS_FWI2_CAPABLE(ha)) {
2425 comp_status = le16_to_cpu(sts24->comp_status);
2426 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK;
2427 state_flags = le16_to_cpu(sts24->state_flags);
2428 } else {
2429 comp_status = le16_to_cpu(sts->comp_status);
2430 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK;
2431 }
2432 handle = (uint32_t) LSW(sts->handle);
2433 que = MSW(sts->handle);
2434 req = ha->req_q_map[que];
2435
2436 /* Check for invalid queue pointer */
2437 if (req == NULL ||
2438 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) {
2439 ql_dbg(ql_dbg_io, vha, 0x3059,
2440 "Invalid status handle (0x%x): Bad req pointer. req=%p, "
2441 "que=%u.\n", sts->handle, req, que);
2442 return;
2443 }
2444
2445 /* Validate handle. */
2446 if (handle < req->num_outstanding_cmds) {
2447 sp = req->outstanding_cmds[handle];
2448 if (!sp) {
2449 ql_dbg(ql_dbg_io, vha, 0x3075,
2450 "%s(%ld): Already returned command for status handle (0x%x).\n",
2451 __func__, vha->host_no, sts->handle);
2452 return;
2453 }
2454 } else {
2455 ql_dbg(ql_dbg_io, vha, 0x3017,
2456 "Invalid status handle, out of range (0x%x).\n",
2457 sts->handle);
2458
2459 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) {
2460 if (IS_P3P_TYPE(ha))
2461 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags);
2462 else
2463 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
2464 qla2xxx_wake_dpc(vha);
2465 }
2466 return;
2467 }
2468
2469 if (sp->cmd_type != TYPE_SRB) {
2470 req->outstanding_cmds[handle] = NULL;
2471 ql_dbg(ql_dbg_io, vha, 0x3015,
2472 "Unknown sp->cmd_type %x %p).\n",
2473 sp->cmd_type, sp);
2474 return;
2475 }
2476
2477 /* NVME completion. */
2478 if (sp->type == SRB_NVME_CMD) {
2479 req->outstanding_cmds[handle] = NULL;
2480 qla24xx_nvme_iocb_entry(vha, req, pkt, sp);
2481 return;
2482 }
2483
2484 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) {
2485 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle);
2486 return;
2487 }
2488
2489 /* Task Management completion. */
2490 if (sp->type == SRB_TM_CMD) {
2491 qla24xx_tm_iocb_entry(vha, req, pkt);
2492 return;
2493 }
2494
2495 /* Fast path completion. */
2496 if (comp_status == CS_COMPLETE && scsi_status == 0) {
2497 qla2x00_process_completed_request(vha, req, handle);
2498
2499 return;
2500 }
2501
2502 req->outstanding_cmds[handle] = NULL;
2503 cp = GET_CMD_SP(sp);
2504 if (cp == NULL) {
2505 ql_dbg(ql_dbg_io, vha, 0x3018,
2506 "Command already returned (0x%x/%p).\n",
2507 sts->handle, sp);
2508
2509 return;
2510 }
2511
2512 lscsi_status = scsi_status & STATUS_MASK;
2513
2514 fcport = sp->fcport;
2515
2516 ox_id = 0;
2517 sense_len = par_sense_len = rsp_info_len = resid_len =
2518 fw_resid_len = 0;
2519 if (IS_FWI2_CAPABLE(ha)) {
2520 if (scsi_status & SS_SENSE_LEN_VALID)
2521 sense_len = le32_to_cpu(sts24->sense_len);
2522 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2523 rsp_info_len = le32_to_cpu(sts24->rsp_data_len);
2524 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER))
2525 resid_len = le32_to_cpu(sts24->rsp_residual_count);
2526 if (comp_status == CS_DATA_UNDERRUN)
2527 fw_resid_len = le32_to_cpu(sts24->residual_len);
2528 rsp_info = sts24->data;
2529 sense_data = sts24->data;
2530 host_to_fcp_swap(sts24->data, sizeof(sts24->data));
2531 ox_id = le16_to_cpu(sts24->ox_id);
2532 par_sense_len = sizeof(sts24->data);
2533 /* Valid values of the retry delay timer are 0x1-0xffef */
2534 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) {
2535 retry_delay = sts24->retry_delay & 0x3fff;
2536 ql_dbg(ql_dbg_io, sp->vha, 0x3033,
2537 "%s: scope=%#x retry_delay=%#x\n", __func__,
2538 sts24->retry_delay >> 14, retry_delay);
2539 }
2540 } else {
2541 if (scsi_status & SS_SENSE_LEN_VALID)
2542 sense_len = le16_to_cpu(sts->req_sense_length);
2543 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID)
2544 rsp_info_len = le16_to_cpu(sts->rsp_info_len);
2545 resid_len = le32_to_cpu(sts->residual_length);
2546 rsp_info = sts->rsp_info;
2547 sense_data = sts->req_sense_data;
2548 par_sense_len = sizeof(sts->req_sense_data);
2549 }
2550
2551 /* Check for any FCP transport errors. */
2552 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) {
2553 /* Sense data lies beyond any FCP RESPONSE data. */
2554 if (IS_FWI2_CAPABLE(ha)) {
2555 sense_data += rsp_info_len;
2556 par_sense_len -= rsp_info_len;
2557 }
2558 if (rsp_info_len > 3 && rsp_info[3]) {
2559 ql_dbg(ql_dbg_io, fcport->vha, 0x3019,
2560 "FCP I/O protocol failure (0x%x/0x%x).\n",
2561 rsp_info_len, rsp_info[3]);
2562
2563 res = DID_BUS_BUSY << 16;
2564 goto out;
2565 }
2566 }
2567
2568 /* Check for overrun. */
2569 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE &&
2570 scsi_status & SS_RESIDUAL_OVER)
2571 comp_status = CS_DATA_OVERRUN;
2572
2573 /*
2574 * Check retry_delay_timer value if we receive a busy or
2575 * queue full.
2576 */
2577 if (lscsi_status == SAM_STAT_TASK_SET_FULL ||
2578 lscsi_status == SAM_STAT_BUSY)
2579 qla2x00_set_retry_delay_timestamp(fcport, retry_delay);
2580
2581 /*
2582 * Based on Host and scsi status generate status code for Linux
2583 */
2584 switch (comp_status) {
2585 case CS_COMPLETE:
2586 case CS_QUEUE_FULL:
2587 if (scsi_status == 0) {
2588 res = DID_OK << 16;
2589 break;
2590 }
2591 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) {
2592 resid = resid_len;
2593 scsi_set_resid(cp, resid);
2594
2595 if (!lscsi_status &&
2596 ((unsigned)(scsi_bufflen(cp) - resid) <
2597 cp->underflow)) {
2598 ql_dbg(ql_dbg_io, fcport->vha, 0x301a,
2599 "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2600 resid, scsi_bufflen(cp));
2601
2602 res = DID_ERROR << 16;
2603 break;
2604 }
2605 }
2606 res = DID_OK << 16 | lscsi_status;
2607
2608 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2609 ql_dbg(ql_dbg_io, fcport->vha, 0x301b,
2610 "QUEUE FULL detected.\n");
2611 break;
2612 }
2613 logit = 0;
2614 if (lscsi_status != SS_CHECK_CONDITION)
2615 break;
2616
2617 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2618 if (!(scsi_status & SS_SENSE_LEN_VALID))
2619 break;
2620
2621 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len,
2622 rsp, res);
2623 break;
2624
2625 case CS_DATA_UNDERRUN:
2626 /* Use F/W calculated residual length. */
2627 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len;
2628 scsi_set_resid(cp, resid);
2629 if (scsi_status & SS_RESIDUAL_UNDER) {
2630 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
2631 ql_dbg(ql_dbg_io, fcport->vha, 0x301d,
2632 "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2633 resid, scsi_bufflen(cp));
2634
2635 res = DID_ERROR << 16 | lscsi_status;
2636 goto check_scsi_status;
2637 }
2638
2639 if (!lscsi_status &&
2640 ((unsigned)(scsi_bufflen(cp) - resid) <
2641 cp->underflow)) {
2642 ql_dbg(ql_dbg_io, fcport->vha, 0x301e,
2643 "Mid-layer underflow detected (0x%x of 0x%x bytes).\n",
2644 resid, scsi_bufflen(cp));
2645
2646 res = DID_ERROR << 16;
2647 break;
2648 }
2649 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL &&
2650 lscsi_status != SAM_STAT_BUSY) {
2651 /*
2652 * scsi status of task set and busy are considered to be
2653 * task not completed.
2654 */
2655
2656 ql_dbg(ql_dbg_io, fcport->vha, 0x301f,
2657 "Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
2658 resid, scsi_bufflen(cp));
2659
2660 res = DID_ERROR << 16 | lscsi_status;
2661 goto check_scsi_status;
2662 } else {
2663 ql_dbg(ql_dbg_io, fcport->vha, 0x3030,
2664 "scsi_status: 0x%x, lscsi_status: 0x%x\n",
2665 scsi_status, lscsi_status);
2666 }
2667
2668 res = DID_OK << 16 | lscsi_status;
2669 logit = 0;
2670
2671 check_scsi_status:
2672 /*
2673 * Check to see if SCSI Status is non zero. If so report SCSI
2674 * Status.
2675 */
2676 if (lscsi_status != 0) {
2677 if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
2678 ql_dbg(ql_dbg_io, fcport->vha, 0x3020,
2679 "QUEUE FULL detected.\n");
2680 logit = 1;
2681 break;
2682 }
2683 if (lscsi_status != SS_CHECK_CONDITION)
2684 break;
2685
2686 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
2687 if (!(scsi_status & SS_SENSE_LEN_VALID))
2688 break;
2689
2690 qla2x00_handle_sense(sp, sense_data, par_sense_len,
2691 sense_len, rsp, res);
2692 }
2693 break;
2694
2695 case CS_PORT_LOGGED_OUT:
2696 case CS_PORT_CONFIG_CHG:
2697 case CS_PORT_BUSY:
2698 case CS_INCOMPLETE:
2699 case CS_PORT_UNAVAILABLE:
2700 case CS_TIMEOUT:
2701 case CS_RESET:
2702
2703 /*
2704 * We are going to have the fc class block the rport
2705 * while we try to recover so instruct the mid layer
2706 * to requeue until the class decides how to handle this.
2707 */
2708 res = DID_TRANSPORT_DISRUPTED << 16;
2709
2710 if (comp_status == CS_TIMEOUT) {
2711 if (IS_FWI2_CAPABLE(ha))
2712 break;
2713 else if ((le16_to_cpu(sts->status_flags) &
2714 SF_LOGOUT_SENT) == 0)
2715 break;
2716 }
2717
2718 if (atomic_read(&fcport->state) == FCS_ONLINE) {
2719 ql_dbg(ql_dbg_disc, fcport->vha, 0x3021,
2720 "Port to be marked lost on fcport=%02x%02x%02x, current "
2721 "port state= %s comp_status %x.\n", fcport->d_id.b.domain,
2722 fcport->d_id.b.area, fcport->d_id.b.al_pa,
2723 port_state_str[FCS_ONLINE],
2724 comp_status);
2725
2726 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1);
2727 qlt_schedule_sess_for_deletion(fcport);
2728 }
2729
2730 break;
2731
2732 case CS_ABORTED:
2733 res = DID_RESET << 16;
2734 break;
2735
2736 case CS_DIF_ERROR:
2737 logit = qla2x00_handle_dif_error(sp, sts24);
2738 res = cp->result;
2739 break;
2740
2741 case CS_TRANSPORT:
2742 res = DID_ERROR << 16;
2743
2744 if (!IS_PI_SPLIT_DET_CAPABLE(ha))
2745 break;
2746
2747 if (state_flags & BIT_4)
2748 scmd_printk(KERN_WARNING, cp,
2749 "Unsupported device '%s' found.\n",
2750 cp->device->vendor);
2751 break;
2752
2753 case CS_DMA:
2754 ql_log(ql_log_info, fcport->vha, 0x3022,
2755 "CS_DMA error: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu portid=%06x oxid=0x%x cdb=%10phN len=0x%x rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2756 comp_status, scsi_status, res, vha->host_no,
2757 cp->device->id, cp->device->lun, fcport->d_id.b24,
2758 ox_id, cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2759 resid_len, fw_resid_len, sp, cp);
2760 ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
2761 pkt, sizeof(*sts24));
2762 res = DID_ERROR << 16;
2763 break;
2764 default:
2765 res = DID_ERROR << 16;
2766 break;
2767 }
2768
2769 out:
2770 if (logit)
2771 ql_dbg(ql_dbg_io, fcport->vha, 0x3022,
2772 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu "
2773 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x "
2774 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n",
2775 comp_status, scsi_status, res, vha->host_no,
2776 cp->device->id, cp->device->lun, fcport->d_id.b.domain,
2777 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
2778 cp->cmnd, scsi_bufflen(cp), rsp_info_len,
2779 resid_len, fw_resid_len, sp, cp);
2780
2781 if (rsp->status_srb == NULL)
2782 sp->done(sp, res);
2783 }
2784
2785 /**
2786 * qla2x00_status_cont_entry() - Process a Status Continuations entry.
2787 * @rsp: response queue
2788 * @pkt: Entry pointer
2789 *
2790 * Extended sense data.
2791 */
2792 static void
qla2x00_status_cont_entry(struct rsp_que * rsp,sts_cont_entry_t * pkt)2793 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
2794 {
2795 uint8_t sense_sz = 0;
2796 struct qla_hw_data *ha = rsp->hw;
2797 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
2798 srb_t *sp = rsp->status_srb;
2799 struct scsi_cmnd *cp;
2800 uint32_t sense_len;
2801 uint8_t *sense_ptr;
2802
2803 if (!sp || !GET_CMD_SENSE_LEN(sp))
2804 return;
2805
2806 sense_len = GET_CMD_SENSE_LEN(sp);
2807 sense_ptr = GET_CMD_SENSE_PTR(sp);
2808
2809 cp = GET_CMD_SP(sp);
2810 if (cp == NULL) {
2811 ql_log(ql_log_warn, vha, 0x3025,
2812 "cmd is NULL: already returned to OS (sp=%p).\n", sp);
2813
2814 rsp->status_srb = NULL;
2815 return;
2816 }
2817
2818 if (sense_len > sizeof(pkt->data))
2819 sense_sz = sizeof(pkt->data);
2820 else
2821 sense_sz = sense_len;
2822
2823 /* Move sense data. */
2824 if (IS_FWI2_CAPABLE(ha))
2825 host_to_fcp_swap(pkt->data, sizeof(pkt->data));
2826 memcpy(sense_ptr, pkt->data, sense_sz);
2827 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c,
2828 sense_ptr, sense_sz);
2829
2830 sense_len -= sense_sz;
2831 sense_ptr += sense_sz;
2832
2833 SET_CMD_SENSE_PTR(sp, sense_ptr);
2834 SET_CMD_SENSE_LEN(sp, sense_len);
2835
2836 /* Place command on done queue. */
2837 if (sense_len == 0) {
2838 rsp->status_srb = NULL;
2839 sp->done(sp, cp->result);
2840 }
2841 }
2842
2843 /**
2844 * qla2x00_error_entry() - Process an error entry.
2845 * @vha: SCSI driver HA context
2846 * @rsp: response queue
2847 * @pkt: Entry pointer
2848 * return : 1=allow further error analysis. 0=no additional error analysis.
2849 */
2850 static int
qla2x00_error_entry(scsi_qla_host_t * vha,struct rsp_que * rsp,sts_entry_t * pkt)2851 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
2852 {
2853 srb_t *sp;
2854 struct qla_hw_data *ha = vha->hw;
2855 const char func[] = "ERROR-IOCB";
2856 uint16_t que = MSW(pkt->handle);
2857 struct req_que *req = NULL;
2858 int res = DID_ERROR << 16;
2859
2860 ql_dbg(ql_dbg_async, vha, 0x502a,
2861 "iocb type %xh with error status %xh, handle %xh, rspq id %d\n",
2862 pkt->entry_type, pkt->entry_status, pkt->handle, rsp->id);
2863
2864 if (que >= ha->max_req_queues || !ha->req_q_map[que])
2865 goto fatal;
2866
2867 req = ha->req_q_map[que];
2868
2869 if (pkt->entry_status & RF_BUSY)
2870 res = DID_BUS_BUSY << 16;
2871
2872 if ((pkt->handle & ~QLA_TGT_HANDLE_MASK) == QLA_TGT_SKIP_HANDLE)
2873 return 0;
2874
2875 switch (pkt->entry_type) {
2876 case NOTIFY_ACK_TYPE:
2877 case STATUS_TYPE:
2878 case STATUS_CONT_TYPE:
2879 case LOGINOUT_PORT_IOCB_TYPE:
2880 case CT_IOCB_TYPE:
2881 case ELS_IOCB_TYPE:
2882 case ABORT_IOCB_TYPE:
2883 case MBX_IOCB_TYPE:
2884 default:
2885 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2886 if (sp) {
2887 sp->done(sp, res);
2888 return 0;
2889 }
2890 break;
2891
2892 case ABTS_RESP_24XX:
2893 case CTIO_TYPE7:
2894 case CTIO_CRC2:
2895 return 1;
2896 }
2897 fatal:
2898 ql_log(ql_log_warn, vha, 0x5030,
2899 "Error entry - invalid handle/queue (%04x).\n", que);
2900 return 0;
2901 }
2902
2903 /**
2904 * qla24xx_mbx_completion() - Process mailbox command completions.
2905 * @vha: SCSI driver HA context
2906 * @mb0: Mailbox0 register
2907 */
2908 static void
qla24xx_mbx_completion(scsi_qla_host_t * vha,uint16_t mb0)2909 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
2910 {
2911 uint16_t cnt;
2912 uint32_t mboxes;
2913 uint16_t __iomem *wptr;
2914 struct qla_hw_data *ha = vha->hw;
2915 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
2916
2917 /* Read all mbox registers? */
2918 WARN_ON_ONCE(ha->mbx_count > 32);
2919 mboxes = (1ULL << ha->mbx_count) - 1;
2920 if (!ha->mcp)
2921 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n");
2922 else
2923 mboxes = ha->mcp->in_mb;
2924
2925 /* Load return mailbox registers. */
2926 ha->flags.mbox_int = 1;
2927 ha->mailbox_out[0] = mb0;
2928 mboxes >>= 1;
2929 wptr = (uint16_t __iomem *)®->mailbox1;
2930
2931 for (cnt = 1; cnt < ha->mbx_count; cnt++) {
2932 if (mboxes & BIT_0)
2933 ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
2934
2935 mboxes >>= 1;
2936 wptr++;
2937 }
2938 }
2939
2940 static void
qla24xx_abort_iocb_entry(scsi_qla_host_t * vha,struct req_que * req,struct abort_entry_24xx * pkt)2941 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
2942 struct abort_entry_24xx *pkt)
2943 {
2944 const char func[] = "ABT_IOCB";
2945 srb_t *sp;
2946 struct srb_iocb *abt;
2947
2948 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2949 if (!sp)
2950 return;
2951
2952 abt = &sp->u.iocb_cmd;
2953 abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle);
2954 sp->done(sp, 0);
2955 }
2956
qla24xx_nvme_ls4_iocb(struct scsi_qla_host * vha,struct pt_ls4_request * pkt,struct req_que * req)2957 void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha,
2958 struct pt_ls4_request *pkt, struct req_que *req)
2959 {
2960 srb_t *sp;
2961 const char func[] = "LS4_IOCB";
2962 uint16_t comp_status;
2963
2964 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
2965 if (!sp)
2966 return;
2967
2968 comp_status = le16_to_cpu(pkt->status);
2969 sp->done(sp, comp_status);
2970 }
2971
2972 /**
2973 * qla24xx_process_response_queue() - Process response queue entries.
2974 * @vha: SCSI driver HA context
2975 * @rsp: response queue
2976 */
qla24xx_process_response_queue(struct scsi_qla_host * vha,struct rsp_que * rsp)2977 void qla24xx_process_response_queue(struct scsi_qla_host *vha,
2978 struct rsp_que *rsp)
2979 {
2980 struct sts_entry_24xx *pkt;
2981 struct qla_hw_data *ha = vha->hw;
2982
2983 if (!ha->flags.fw_started)
2984 return;
2985
2986 if (rsp->qpair->cpuid != smp_processor_id())
2987 qla_cpu_update(rsp->qpair, smp_processor_id());
2988
2989 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) {
2990 pkt = (struct sts_entry_24xx *)rsp->ring_ptr;
2991
2992 rsp->ring_index++;
2993 if (rsp->ring_index == rsp->length) {
2994 rsp->ring_index = 0;
2995 rsp->ring_ptr = rsp->ring;
2996 } else {
2997 rsp->ring_ptr++;
2998 }
2999
3000 if (pkt->entry_status != 0) {
3001 if (qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt))
3002 goto process_err;
3003
3004 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3005 wmb();
3006 continue;
3007 }
3008 process_err:
3009
3010 switch (pkt->entry_type) {
3011 case STATUS_TYPE:
3012 qla2x00_status_entry(vha, rsp, pkt);
3013 break;
3014 case STATUS_CONT_TYPE:
3015 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt);
3016 break;
3017 case VP_RPT_ID_IOCB_TYPE:
3018 qla24xx_report_id_acquisition(vha,
3019 (struct vp_rpt_id_entry_24xx *)pkt);
3020 break;
3021 case LOGINOUT_PORT_IOCB_TYPE:
3022 qla24xx_logio_entry(vha, rsp->req,
3023 (struct logio_entry_24xx *)pkt);
3024 break;
3025 case CT_IOCB_TYPE:
3026 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE);
3027 break;
3028 case ELS_IOCB_TYPE:
3029 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
3030 break;
3031 case ABTS_RECV_24XX:
3032 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
3033 IS_QLA28XX(ha)) {
3034 /* ensure that the ATIO queue is empty */
3035 qlt_handle_abts_recv(vha, rsp,
3036 (response_t *)pkt);
3037 break;
3038 } else {
3039 qlt_24xx_process_atio_queue(vha, 1);
3040 }
3041 /* fall through */
3042 case ABTS_RESP_24XX:
3043 case CTIO_TYPE7:
3044 case CTIO_CRC2:
3045 qlt_response_pkt_all_vps(vha, rsp, (response_t *)pkt);
3046 break;
3047 case PT_LS4_REQUEST:
3048 qla24xx_nvme_ls4_iocb(vha, (struct pt_ls4_request *)pkt,
3049 rsp->req);
3050 break;
3051 case NOTIFY_ACK_TYPE:
3052 if (pkt->handle == QLA_TGT_SKIP_HANDLE)
3053 qlt_response_pkt_all_vps(vha, rsp,
3054 (response_t *)pkt);
3055 else
3056 qla24xxx_nack_iocb_entry(vha, rsp->req,
3057 (struct nack_to_isp *)pkt);
3058 break;
3059 case MARKER_TYPE:
3060 /* Do nothing in this case, this check is to prevent it
3061 * from falling into default case
3062 */
3063 break;
3064 case ABORT_IOCB_TYPE:
3065 qla24xx_abort_iocb_entry(vha, rsp->req,
3066 (struct abort_entry_24xx *)pkt);
3067 break;
3068 case MBX_IOCB_TYPE:
3069 qla24xx_mbx_iocb_entry(vha, rsp->req,
3070 (struct mbx_24xx_entry *)pkt);
3071 break;
3072 case VP_CTRL_IOCB_TYPE:
3073 qla_ctrlvp_completed(vha, rsp->req,
3074 (struct vp_ctrl_entry_24xx *)pkt);
3075 break;
3076 default:
3077 /* Type Not Supported. */
3078 ql_dbg(ql_dbg_async, vha, 0x5042,
3079 "Received unknown response pkt type %x "
3080 "entry status=%x.\n",
3081 pkt->entry_type, pkt->entry_status);
3082 break;
3083 }
3084 ((response_t *)pkt)->signature = RESPONSE_PROCESSED;
3085 wmb();
3086 }
3087
3088 /* Adjust ring index */
3089 if (IS_P3P_TYPE(ha)) {
3090 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82;
3091
3092 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index);
3093 } else {
3094 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index);
3095 }
3096 }
3097
3098 static void
qla2xxx_check_risc_status(scsi_qla_host_t * vha)3099 qla2xxx_check_risc_status(scsi_qla_host_t *vha)
3100 {
3101 int rval;
3102 uint32_t cnt;
3103 struct qla_hw_data *ha = vha->hw;
3104 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
3105
3106 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
3107 !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3108 return;
3109
3110 rval = QLA_SUCCESS;
3111 WRT_REG_DWORD(®->iobase_addr, 0x7C00);
3112 RD_REG_DWORD(®->iobase_addr);
3113 WRT_REG_DWORD(®->iobase_window, 0x0001);
3114 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
3115 rval == QLA_SUCCESS; cnt--) {
3116 if (cnt) {
3117 WRT_REG_DWORD(®->iobase_window, 0x0001);
3118 udelay(10);
3119 } else
3120 rval = QLA_FUNCTION_TIMEOUT;
3121 }
3122 if (rval == QLA_SUCCESS)
3123 goto next_test;
3124
3125 rval = QLA_SUCCESS;
3126 WRT_REG_DWORD(®->iobase_window, 0x0003);
3127 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 &&
3128 rval == QLA_SUCCESS; cnt--) {
3129 if (cnt) {
3130 WRT_REG_DWORD(®->iobase_window, 0x0003);
3131 udelay(10);
3132 } else
3133 rval = QLA_FUNCTION_TIMEOUT;
3134 }
3135 if (rval != QLA_SUCCESS)
3136 goto done;
3137
3138 next_test:
3139 if (RD_REG_DWORD(®->iobase_c8) & BIT_3)
3140 ql_log(ql_log_info, vha, 0x504c,
3141 "Additional code -- 0x55AA.\n");
3142
3143 done:
3144 WRT_REG_DWORD(®->iobase_window, 0x0000);
3145 RD_REG_DWORD(®->iobase_window);
3146 }
3147
3148 /**
3149 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx.
3150 * @irq: interrupt number
3151 * @dev_id: SCSI driver HA context
3152 *
3153 * Called by system whenever the host adapter generates an interrupt.
3154 *
3155 * Returns handled flag.
3156 */
3157 irqreturn_t
qla24xx_intr_handler(int irq,void * dev_id)3158 qla24xx_intr_handler(int irq, void *dev_id)
3159 {
3160 scsi_qla_host_t *vha;
3161 struct qla_hw_data *ha;
3162 struct device_reg_24xx __iomem *reg;
3163 int status;
3164 unsigned long iter;
3165 uint32_t stat;
3166 uint32_t hccr;
3167 uint16_t mb[8];
3168 struct rsp_que *rsp;
3169 unsigned long flags;
3170 bool process_atio = false;
3171
3172 rsp = (struct rsp_que *) dev_id;
3173 if (!rsp) {
3174 ql_log(ql_log_info, NULL, 0x5059,
3175 "%s: NULL response queue pointer.\n", __func__);
3176 return IRQ_NONE;
3177 }
3178
3179 ha = rsp->hw;
3180 reg = &ha->iobase->isp24;
3181 status = 0;
3182
3183 if (unlikely(pci_channel_offline(ha->pdev)))
3184 return IRQ_HANDLED;
3185
3186 spin_lock_irqsave(&ha->hardware_lock, flags);
3187 vha = pci_get_drvdata(ha->pdev);
3188 for (iter = 50; iter--; ) {
3189 stat = RD_REG_DWORD(®->host_status);
3190 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3191 break;
3192 if (stat & HSRX_RISC_PAUSED) {
3193 if (unlikely(pci_channel_offline(ha->pdev)))
3194 break;
3195
3196 hccr = RD_REG_DWORD(®->hccr);
3197
3198 ql_log(ql_log_warn, vha, 0x504b,
3199 "RISC paused -- HCCR=%x, Dumping firmware.\n",
3200 hccr);
3201
3202 qla2xxx_check_risc_status(vha);
3203
3204 ha->isp_ops->fw_dump(vha, 1);
3205 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3206 break;
3207 } else if ((stat & HSRX_RISC_INT) == 0)
3208 break;
3209
3210 switch (stat & 0xff) {
3211 case INTR_ROM_MB_SUCCESS:
3212 case INTR_ROM_MB_FAILED:
3213 case INTR_MB_SUCCESS:
3214 case INTR_MB_FAILED:
3215 qla24xx_mbx_completion(vha, MSW(stat));
3216 status |= MBX_INTERRUPT;
3217
3218 break;
3219 case INTR_ASYNC_EVENT:
3220 mb[0] = MSW(stat);
3221 mb[1] = RD_REG_WORD(®->mailbox1);
3222 mb[2] = RD_REG_WORD(®->mailbox2);
3223 mb[3] = RD_REG_WORD(®->mailbox3);
3224 qla2x00_async_event(vha, rsp, mb);
3225 break;
3226 case INTR_RSP_QUE_UPDATE:
3227 case INTR_RSP_QUE_UPDATE_83XX:
3228 qla24xx_process_response_queue(vha, rsp);
3229 break;
3230 case INTR_ATIO_QUE_UPDATE_27XX:
3231 case INTR_ATIO_QUE_UPDATE:
3232 process_atio = true;
3233 break;
3234 case INTR_ATIO_RSP_QUE_UPDATE:
3235 process_atio = true;
3236 qla24xx_process_response_queue(vha, rsp);
3237 break;
3238 default:
3239 ql_dbg(ql_dbg_async, vha, 0x504f,
3240 "Unrecognized interrupt type (%d).\n", stat * 0xff);
3241 break;
3242 }
3243 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
3244 RD_REG_DWORD_RELAXED(®->hccr);
3245 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1)))
3246 ndelay(3500);
3247 }
3248 qla2x00_handle_mbx_completion(ha, status);
3249 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3250
3251 if (process_atio) {
3252 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3253 qlt_24xx_process_atio_queue(vha, 0);
3254 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3255 }
3256
3257 return IRQ_HANDLED;
3258 }
3259
3260 static irqreturn_t
qla24xx_msix_rsp_q(int irq,void * dev_id)3261 qla24xx_msix_rsp_q(int irq, void *dev_id)
3262 {
3263 struct qla_hw_data *ha;
3264 struct rsp_que *rsp;
3265 struct device_reg_24xx __iomem *reg;
3266 struct scsi_qla_host *vha;
3267 unsigned long flags;
3268
3269 rsp = (struct rsp_que *) dev_id;
3270 if (!rsp) {
3271 ql_log(ql_log_info, NULL, 0x505a,
3272 "%s: NULL response queue pointer.\n", __func__);
3273 return IRQ_NONE;
3274 }
3275 ha = rsp->hw;
3276 reg = &ha->iobase->isp24;
3277
3278 spin_lock_irqsave(&ha->hardware_lock, flags);
3279
3280 vha = pci_get_drvdata(ha->pdev);
3281 qla24xx_process_response_queue(vha, rsp);
3282 if (!ha->flags.disable_msix_handshake) {
3283 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
3284 RD_REG_DWORD_RELAXED(®->hccr);
3285 }
3286 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3287
3288 return IRQ_HANDLED;
3289 }
3290
3291 static irqreturn_t
qla24xx_msix_default(int irq,void * dev_id)3292 qla24xx_msix_default(int irq, void *dev_id)
3293 {
3294 scsi_qla_host_t *vha;
3295 struct qla_hw_data *ha;
3296 struct rsp_que *rsp;
3297 struct device_reg_24xx __iomem *reg;
3298 int status;
3299 uint32_t stat;
3300 uint32_t hccr;
3301 uint16_t mb[8];
3302 unsigned long flags;
3303 bool process_atio = false;
3304
3305 rsp = (struct rsp_que *) dev_id;
3306 if (!rsp) {
3307 ql_log(ql_log_info, NULL, 0x505c,
3308 "%s: NULL response queue pointer.\n", __func__);
3309 return IRQ_NONE;
3310 }
3311 ha = rsp->hw;
3312 reg = &ha->iobase->isp24;
3313 status = 0;
3314
3315 spin_lock_irqsave(&ha->hardware_lock, flags);
3316 vha = pci_get_drvdata(ha->pdev);
3317 do {
3318 stat = RD_REG_DWORD(®->host_status);
3319 if (qla2x00_check_reg32_for_disconnect(vha, stat))
3320 break;
3321 if (stat & HSRX_RISC_PAUSED) {
3322 if (unlikely(pci_channel_offline(ha->pdev)))
3323 break;
3324
3325 hccr = RD_REG_DWORD(®->hccr);
3326
3327 ql_log(ql_log_info, vha, 0x5050,
3328 "RISC paused -- HCCR=%x, Dumping firmware.\n",
3329 hccr);
3330
3331 qla2xxx_check_risc_status(vha);
3332
3333 ha->isp_ops->fw_dump(vha, 1);
3334 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
3335 break;
3336 } else if ((stat & HSRX_RISC_INT) == 0)
3337 break;
3338
3339 switch (stat & 0xff) {
3340 case INTR_ROM_MB_SUCCESS:
3341 case INTR_ROM_MB_FAILED:
3342 case INTR_MB_SUCCESS:
3343 case INTR_MB_FAILED:
3344 qla24xx_mbx_completion(vha, MSW(stat));
3345 status |= MBX_INTERRUPT;
3346
3347 break;
3348 case INTR_ASYNC_EVENT:
3349 mb[0] = MSW(stat);
3350 mb[1] = RD_REG_WORD(®->mailbox1);
3351 mb[2] = RD_REG_WORD(®->mailbox2);
3352 mb[3] = RD_REG_WORD(®->mailbox3);
3353 qla2x00_async_event(vha, rsp, mb);
3354 break;
3355 case INTR_RSP_QUE_UPDATE:
3356 case INTR_RSP_QUE_UPDATE_83XX:
3357 qla24xx_process_response_queue(vha, rsp);
3358 break;
3359 case INTR_ATIO_QUE_UPDATE_27XX:
3360 case INTR_ATIO_QUE_UPDATE:
3361 process_atio = true;
3362 break;
3363 case INTR_ATIO_RSP_QUE_UPDATE:
3364 process_atio = true;
3365 qla24xx_process_response_queue(vha, rsp);
3366 break;
3367 default:
3368 ql_dbg(ql_dbg_async, vha, 0x5051,
3369 "Unrecognized interrupt type (%d).\n", stat & 0xff);
3370 break;
3371 }
3372 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
3373 } while (0);
3374 qla2x00_handle_mbx_completion(ha, status);
3375 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3376
3377 if (process_atio) {
3378 spin_lock_irqsave(&ha->tgt.atio_lock, flags);
3379 qlt_24xx_process_atio_queue(vha, 0);
3380 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
3381 }
3382
3383 return IRQ_HANDLED;
3384 }
3385
3386 irqreturn_t
qla2xxx_msix_rsp_q(int irq,void * dev_id)3387 qla2xxx_msix_rsp_q(int irq, void *dev_id)
3388 {
3389 struct qla_hw_data *ha;
3390 struct qla_qpair *qpair;
3391 struct device_reg_24xx __iomem *reg;
3392 unsigned long flags;
3393
3394 qpair = dev_id;
3395 if (!qpair) {
3396 ql_log(ql_log_info, NULL, 0x505b,
3397 "%s: NULL response queue pointer.\n", __func__);
3398 return IRQ_NONE;
3399 }
3400 ha = qpair->hw;
3401
3402 /* Clear the interrupt, if enabled, for this response queue */
3403 if (unlikely(!ha->flags.disable_msix_handshake)) {
3404 reg = &ha->iobase->isp24;
3405 spin_lock_irqsave(&ha->hardware_lock, flags);
3406 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT);
3407 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3408 }
3409
3410 queue_work(ha->wq, &qpair->q_work);
3411
3412 return IRQ_HANDLED;
3413 }
3414
3415 /* Interrupt handling helpers. */
3416
3417 struct qla_init_msix_entry {
3418 const char *name;
3419 irq_handler_t handler;
3420 };
3421
3422 static const struct qla_init_msix_entry msix_entries[] = {
3423 { "default", qla24xx_msix_default },
3424 { "rsp_q", qla24xx_msix_rsp_q },
3425 { "atio_q", qla83xx_msix_atio_q },
3426 { "qpair_multiq", qla2xxx_msix_rsp_q },
3427 };
3428
3429 static const struct qla_init_msix_entry qla82xx_msix_entries[] = {
3430 { "qla2xxx (default)", qla82xx_msix_default },
3431 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q },
3432 };
3433
3434 static int
qla24xx_enable_msix(struct qla_hw_data * ha,struct rsp_que * rsp)3435 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
3436 {
3437 int i, ret;
3438 struct qla_msix_entry *qentry;
3439 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3440 int min_vecs = QLA_BASE_VECTORS;
3441 struct irq_affinity desc = {
3442 .pre_vectors = QLA_BASE_VECTORS,
3443 };
3444
3445 if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3446 IS_ATIO_MSIX_CAPABLE(ha)) {
3447 desc.pre_vectors++;
3448 min_vecs++;
3449 }
3450
3451 if (USER_CTRL_IRQ(ha) || !ha->mqiobase) {
3452 /* user wants to control IRQ setting for target mode */
3453 ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
3454 ha->msix_count, PCI_IRQ_MSIX);
3455 } else
3456 ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
3457 ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
3458 &desc);
3459
3460 if (ret < 0) {
3461 ql_log(ql_log_fatal, vha, 0x00c7,
3462 "MSI-X: Failed to enable support, "
3463 "giving up -- %d/%d.\n",
3464 ha->msix_count, ret);
3465 goto msix_out;
3466 } else if (ret < ha->msix_count) {
3467 ql_log(ql_log_info, vha, 0x00c6,
3468 "MSI-X: Using %d vectors\n", ret);
3469 ha->msix_count = ret;
3470 /* Recalculate queue values */
3471 if (ha->mqiobase && (ql2xmqsupport || ql2xnvmeenable)) {
3472 ha->max_req_queues = ha->msix_count - 1;
3473
3474 /* ATIOQ needs 1 vector. That's 1 less QPair */
3475 if (QLA_TGT_MODE_ENABLED())
3476 ha->max_req_queues--;
3477
3478 ha->max_rsp_queues = ha->max_req_queues;
3479
3480 ha->max_qpairs = ha->max_req_queues - 1;
3481 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190,
3482 "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs);
3483 }
3484 }
3485 vha->irq_offset = desc.pre_vectors;
3486 ha->msix_entries = kcalloc(ha->msix_count,
3487 sizeof(struct qla_msix_entry),
3488 GFP_KERNEL);
3489 if (!ha->msix_entries) {
3490 ql_log(ql_log_fatal, vha, 0x00c8,
3491 "Failed to allocate memory for ha->msix_entries.\n");
3492 ret = -ENOMEM;
3493 goto free_irqs;
3494 }
3495 ha->flags.msix_enabled = 1;
3496
3497 for (i = 0; i < ha->msix_count; i++) {
3498 qentry = &ha->msix_entries[i];
3499 qentry->vector = pci_irq_vector(ha->pdev, i);
3500 qentry->entry = i;
3501 qentry->have_irq = 0;
3502 qentry->in_use = 0;
3503 qentry->handle = NULL;
3504 }
3505
3506 /* Enable MSI-X vectors for the base queue */
3507 for (i = 0; i < QLA_BASE_VECTORS; i++) {
3508 qentry = &ha->msix_entries[i];
3509 qentry->handle = rsp;
3510 rsp->msix = qentry;
3511 scnprintf(qentry->name, sizeof(qentry->name),
3512 "qla2xxx%lu_%s", vha->host_no, msix_entries[i].name);
3513 if (IS_P3P_TYPE(ha))
3514 ret = request_irq(qentry->vector,
3515 qla82xx_msix_entries[i].handler,
3516 0, qla82xx_msix_entries[i].name, rsp);
3517 else
3518 ret = request_irq(qentry->vector,
3519 msix_entries[i].handler,
3520 0, qentry->name, rsp);
3521 if (ret)
3522 goto msix_register_fail;
3523 qentry->have_irq = 1;
3524 qentry->in_use = 1;
3525 }
3526
3527 /*
3528 * If target mode is enable, also request the vector for the ATIO
3529 * queue.
3530 */
3531 if (QLA_TGT_MODE_ENABLED() && (ql2xenablemsix != 0) &&
3532 IS_ATIO_MSIX_CAPABLE(ha)) {
3533 qentry = &ha->msix_entries[QLA_ATIO_VECTOR];
3534 rsp->msix = qentry;
3535 qentry->handle = rsp;
3536 scnprintf(qentry->name, sizeof(qentry->name),
3537 "qla2xxx%lu_%s", vha->host_no,
3538 msix_entries[QLA_ATIO_VECTOR].name);
3539 qentry->in_use = 1;
3540 ret = request_irq(qentry->vector,
3541 msix_entries[QLA_ATIO_VECTOR].handler,
3542 0, qentry->name, rsp);
3543 qentry->have_irq = 1;
3544 }
3545
3546 msix_register_fail:
3547 if (ret) {
3548 ql_log(ql_log_fatal, vha, 0x00cb,
3549 "MSI-X: unable to register handler -- %x/%d.\n",
3550 qentry->vector, ret);
3551 qla2x00_free_irqs(vha);
3552 ha->mqenable = 0;
3553 goto msix_out;
3554 }
3555
3556 /* Enable MSI-X vector for response queue update for queue 0 */
3557 if (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
3558 if (ha->msixbase && ha->mqiobase &&
3559 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3560 ql2xmqsupport))
3561 ha->mqenable = 1;
3562 } else
3563 if (ha->mqiobase &&
3564 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 ||
3565 ql2xmqsupport))
3566 ha->mqenable = 1;
3567 ql_dbg(ql_dbg_multiq, vha, 0xc005,
3568 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3569 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3570 ql_dbg(ql_dbg_init, vha, 0x0055,
3571 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n",
3572 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues);
3573
3574 msix_out:
3575 return ret;
3576
3577 free_irqs:
3578 pci_free_irq_vectors(ha->pdev);
3579 goto msix_out;
3580 }
3581
3582 int
qla2x00_request_irqs(struct qla_hw_data * ha,struct rsp_que * rsp)3583 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp)
3584 {
3585 int ret = QLA_FUNCTION_FAILED;
3586 device_reg_t *reg = ha->iobase;
3587 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3588
3589 /* If possible, enable MSI-X. */
3590 if (ql2xenablemsix == 0 || (!IS_QLA2432(ha) && !IS_QLA2532(ha) &&
3591 !IS_QLA8432(ha) && !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) &&
3592 !IS_QLAFX00(ha) && !IS_QLA27XX(ha) && !IS_QLA28XX(ha)))
3593 goto skip_msi;
3594
3595 if (ql2xenablemsix == 2)
3596 goto skip_msix;
3597
3598 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP &&
3599 (ha->pdev->subsystem_device == 0x7040 ||
3600 ha->pdev->subsystem_device == 0x7041 ||
3601 ha->pdev->subsystem_device == 0x1705)) {
3602 ql_log(ql_log_warn, vha, 0x0034,
3603 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n",
3604 ha->pdev->subsystem_vendor,
3605 ha->pdev->subsystem_device);
3606 goto skip_msi;
3607 }
3608
3609 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) {
3610 ql_log(ql_log_warn, vha, 0x0035,
3611 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n",
3612 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX);
3613 goto skip_msix;
3614 }
3615
3616 ret = qla24xx_enable_msix(ha, rsp);
3617 if (!ret) {
3618 ql_dbg(ql_dbg_init, vha, 0x0036,
3619 "MSI-X: Enabled (0x%X, 0x%X).\n",
3620 ha->chip_revision, ha->fw_attributes);
3621 goto clear_risc_ints;
3622 }
3623
3624 skip_msix:
3625
3626 ql_log(ql_log_info, vha, 0x0037,
3627 "Falling back-to MSI mode -%d.\n", ret);
3628
3629 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) &&
3630 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) &&
3631 !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
3632 goto skip_msi;
3633
3634 ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI);
3635 if (!ret) {
3636 ql_dbg(ql_dbg_init, vha, 0x0038,
3637 "MSI: Enabled.\n");
3638 ha->flags.msi_enabled = 1;
3639 } else
3640 ql_log(ql_log_warn, vha, 0x0039,
3641 "Falling back-to INTa mode -- %d.\n", ret);
3642 skip_msi:
3643
3644 /* Skip INTx on ISP82xx. */
3645 if (!ha->flags.msi_enabled && IS_QLA82XX(ha))
3646 return QLA_FUNCTION_FAILED;
3647
3648 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler,
3649 ha->flags.msi_enabled ? 0 : IRQF_SHARED,
3650 QLA2XXX_DRIVER_NAME, rsp);
3651 if (ret) {
3652 ql_log(ql_log_warn, vha, 0x003a,
3653 "Failed to reserve interrupt %d already in use.\n",
3654 ha->pdev->irq);
3655 goto fail;
3656 } else if (!ha->flags.msi_enabled) {
3657 ql_dbg(ql_dbg_init, vha, 0x0125,
3658 "INTa mode: Enabled.\n");
3659 ha->flags.mr_intr_valid = 1;
3660 }
3661
3662 clear_risc_ints:
3663 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha))
3664 goto fail;
3665
3666 spin_lock_irq(&ha->hardware_lock);
3667 WRT_REG_WORD(®->isp.semaphore, 0);
3668 spin_unlock_irq(&ha->hardware_lock);
3669
3670 fail:
3671 return ret;
3672 }
3673
3674 void
qla2x00_free_irqs(scsi_qla_host_t * vha)3675 qla2x00_free_irqs(scsi_qla_host_t *vha)
3676 {
3677 struct qla_hw_data *ha = vha->hw;
3678 struct rsp_que *rsp;
3679 struct qla_msix_entry *qentry;
3680 int i;
3681
3682 /*
3683 * We need to check that ha->rsp_q_map is valid in case we are called
3684 * from a probe failure context.
3685 */
3686 if (!ha->rsp_q_map || !ha->rsp_q_map[0])
3687 goto free_irqs;
3688 rsp = ha->rsp_q_map[0];
3689
3690 if (ha->flags.msix_enabled) {
3691 for (i = 0; i < ha->msix_count; i++) {
3692 qentry = &ha->msix_entries[i];
3693 if (qentry->have_irq) {
3694 irq_set_affinity_notifier(qentry->vector, NULL);
3695 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle);
3696 }
3697 }
3698 kfree(ha->msix_entries);
3699 ha->msix_entries = NULL;
3700 ha->flags.msix_enabled = 0;
3701 ql_dbg(ql_dbg_init, vha, 0x0042,
3702 "Disabled MSI-X.\n");
3703 } else {
3704 free_irq(pci_irq_vector(ha->pdev, 0), rsp);
3705 }
3706
3707 free_irqs:
3708 pci_free_irq_vectors(ha->pdev);
3709 }
3710
qla25xx_request_irq(struct qla_hw_data * ha,struct qla_qpair * qpair,struct qla_msix_entry * msix,int vector_type)3711 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair,
3712 struct qla_msix_entry *msix, int vector_type)
3713 {
3714 const struct qla_init_msix_entry *intr = &msix_entries[vector_type];
3715 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
3716 int ret;
3717
3718 scnprintf(msix->name, sizeof(msix->name),
3719 "qla2xxx%lu_qpair%d", vha->host_no, qpair->id);
3720 ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair);
3721 if (ret) {
3722 ql_log(ql_log_fatal, vha, 0x00e6,
3723 "MSI-X: Unable to register handler -- %x/%d.\n",
3724 msix->vector, ret);
3725 return ret;
3726 }
3727 msix->have_irq = 1;
3728 msix->handle = qpair;
3729 return ret;
3730 }
3731
