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[ARM] 5107/1: Add maintainer entries for the CompuLab CM-X270/EM-X270 machines
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20 * Driver version
21 */
22 char qla2x00_version_str[40];
23
24 /*
25 * SRB allocation cache
26 */
27 static struct kmem_cache *srb_cachep;
28
29 int num_hosts;
30 int ql2xlogintimeout = 20;
31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
32 MODULE_PARM_DESC(ql2xlogintimeout,
33 "Login timeout value in seconds.");
34
35 int qlport_down_retry;
36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
37 MODULE_PARM_DESC(qlport_down_retry,
38 "Maximum number of command retries to a port that returns "
39 "a PORT-DOWN status.");
40
41 int ql2xplogiabsentdevice;
42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
44 "Option to enable PLOGI to devices that are not present after "
45 "a Fabric scan. This is needed for several broken switches. "
46 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
47
48 int ql2xloginretrycount = 0;
49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
50 MODULE_PARM_DESC(ql2xloginretrycount,
51 "Specify an alternate value for the NVRAM login retry count.");
52
53 int ql2xallocfwdump = 1;
54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
55 MODULE_PARM_DESC(ql2xallocfwdump,
56 "Option to enable allocation of memory for a firmware dump "
57 "during HBA initialization. Memory allocation requirements "
58 "vary by ISP type. Default is 1 - allocate memory.");
59
60 int ql2xextended_error_logging;
61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
62 MODULE_PARM_DESC(ql2xextended_error_logging,
63 "Option to enable extended error logging, "
64 "Default is 0 - no logging. 1 - log errors.");
65
66 static void qla2x00_free_device(scsi_qla_host_t *);
67
68 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
69
70 int ql2xfdmienable=1;
71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
72 MODULE_PARM_DESC(ql2xfdmienable,
73 "Enables FDMI registratons "
74 "Default is 0 - no FDMI. 1 - perfom FDMI.");
75
76 #define MAX_Q_DEPTH 32
77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
79 MODULE_PARM_DESC(ql2xmaxqdepth,
80 "Maximum queue depth to report for target devices.");
81
82 int ql2xqfullrampup = 120;
83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
84 MODULE_PARM_DESC(ql2xqfullrampup,
85 "Number of seconds to wait to begin to ramp-up the queue "
86 "depth for a device after a queue-full condition has been "
87 "detected. Default is 120 seconds.");
88
89 /*
90 * SCSI host template entry points
91 */
92 static int qla2xxx_slave_configure(struct scsi_device * device);
93 static int qla2xxx_slave_alloc(struct scsi_device *);
94 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
95 static void qla2xxx_scan_start(struct Scsi_Host *);
96 static void qla2xxx_slave_destroy(struct scsi_device *);
97 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
98 void (*fn)(struct scsi_cmnd *));
99 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
100 void (*fn)(struct scsi_cmnd *));
101 static int qla2xxx_eh_abort(struct scsi_cmnd *);
102 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
103 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
104 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
105 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
106
107 static int qla2x00_change_queue_depth(struct scsi_device *, int);
108 static int qla2x00_change_queue_type(struct scsi_device *, int);
109
110 static struct scsi_host_template qla2x00_driver_template = {
111 .module = THIS_MODULE,
112 .name = QLA2XXX_DRIVER_NAME,
113 .queuecommand = qla2x00_queuecommand,
114
115 .eh_abort_handler = qla2xxx_eh_abort,
116 .eh_device_reset_handler = qla2xxx_eh_device_reset,
117 .eh_target_reset_handler = qla2xxx_eh_target_reset,
118 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
119 .eh_host_reset_handler = qla2xxx_eh_host_reset,
120
121 .slave_configure = qla2xxx_slave_configure,
122
123 .slave_alloc = qla2xxx_slave_alloc,
124 .slave_destroy = qla2xxx_slave_destroy,
125 .scan_finished = qla2xxx_scan_finished,
126 .scan_start = qla2xxx_scan_start,
127 .change_queue_depth = qla2x00_change_queue_depth,
128 .change_queue_type = qla2x00_change_queue_type,
129 .this_id = -1,
130 .cmd_per_lun = 3,
131 .use_clustering = ENABLE_CLUSTERING,
132 .sg_tablesize = SG_ALL,
133
134 /*
135 * The RISC allows for each command to transfer (2^32-1) bytes of data,
136 * which equates to 0x800000 sectors.
137 */
138 .max_sectors = 0xFFFF,
139 .shost_attrs = qla2x00_host_attrs,
140 };
141
142 struct scsi_host_template qla24xx_driver_template = {
143 .module = THIS_MODULE,
144 .name = QLA2XXX_DRIVER_NAME,
145 .queuecommand = qla24xx_queuecommand,
146
147 .eh_abort_handler = qla2xxx_eh_abort,
148 .eh_device_reset_handler = qla2xxx_eh_device_reset,
149 .eh_target_reset_handler = qla2xxx_eh_target_reset,
150 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
151 .eh_host_reset_handler = qla2xxx_eh_host_reset,
152
153 .slave_configure = qla2xxx_slave_configure,
154
155 .slave_alloc = qla2xxx_slave_alloc,
156 .slave_destroy = qla2xxx_slave_destroy,
157 .scan_finished = qla2xxx_scan_finished,
158 .scan_start = qla2xxx_scan_start,
159 .change_queue_depth = qla2x00_change_queue_depth,
160 .change_queue_type = qla2x00_change_queue_type,
161 .this_id = -1,
162 .cmd_per_lun = 3,
163 .use_clustering = ENABLE_CLUSTERING,
164 .sg_tablesize = SG_ALL,
165
166 .max_sectors = 0xFFFF,
167 .shost_attrs = qla2x00_host_attrs,
168 };
169
170 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
171 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
172
173 /* TODO Convert to inlines
174 *
175 * Timer routines
176 */
177
178 __inline__ void
179 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
180 {
181 init_timer(&ha->timer);
182 ha->timer.expires = jiffies + interval * HZ;
183 ha->timer.data = (unsigned long)ha;
184 ha->timer.function = (void (*)(unsigned long))func;
185 add_timer(&ha->timer);
186 ha->timer_active = 1;
187 }
188
189 static inline void
190 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
191 {
192 mod_timer(&ha->timer, jiffies + interval * HZ);
193 }
194
195 static __inline__ void
196 qla2x00_stop_timer(scsi_qla_host_t *ha)
197 {
198 del_timer_sync(&ha->timer);
199 ha->timer_active = 0;
200 }
201
202 static int qla2x00_do_dpc(void *data);
203
204 static void qla2x00_rst_aen(scsi_qla_host_t *);
205
206 static int qla2x00_mem_alloc(scsi_qla_host_t *);
207 static void qla2x00_mem_free(scsi_qla_host_t *ha);
208 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
209
210 /* -------------------------------------------------------------------------- */
211
212 static char *
213 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
214 {
215 static char *pci_bus_modes[] = {
216 "33", "66", "100", "133",
217 };
218 uint16_t pci_bus;
219
220 strcpy(str, "PCI");
221 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
222 if (pci_bus) {
223 strcat(str, "-X (");
224 strcat(str, pci_bus_modes[pci_bus]);
225 } else {
226 pci_bus = (ha->pci_attr & BIT_8) >> 8;
227 strcat(str, " (");
228 strcat(str, pci_bus_modes[pci_bus]);
229 }
230 strcat(str, " MHz)");
231
232 return (str);
233 }
234
235 static char *
236 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
237 {
238 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
239 uint32_t pci_bus;
240 int pcie_reg;
241
242 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
243 if (pcie_reg) {
244 char lwstr[6];
245 uint16_t pcie_lstat, lspeed, lwidth;
246
247 pcie_reg += 0x12;
248 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
249 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
250 lwidth = (pcie_lstat &
251 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
252
253 strcpy(str, "PCIe (");
254 if (lspeed == 1)
255 strcat(str, "2.5GT/s ");
256 else if (lspeed == 2)
257 strcat(str, "5.0GT/s ");
258 else
259 strcat(str, "<unknown> ");
260 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
261 strcat(str, lwstr);
262
263 return str;
264 }
265
266 strcpy(str, "PCI");
267 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
268 if (pci_bus == 0 || pci_bus == 8) {
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus >> 3]);
271 } else {
272 strcat(str, "-X ");
273 if (pci_bus & BIT_2)
274 strcat(str, "Mode 2");
275 else
276 strcat(str, "Mode 1");
277 strcat(str, " (");
278 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
279 }
280 strcat(str, " MHz)");
281
282 return str;
283 }
284
285 static char *
286 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
287 {
288 char un_str[10];
289
290 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
291 ha->fw_minor_version,
292 ha->fw_subminor_version);
293
294 if (ha->fw_attributes & BIT_9) {
295 strcat(str, "FLX");
296 return (str);
297 }
298
299 switch (ha->fw_attributes & 0xFF) {
300 case 0x7:
301 strcat(str, "EF");
302 break;
303 case 0x17:
304 strcat(str, "TP");
305 break;
306 case 0x37:
307 strcat(str, "IP");
308 break;
309 case 0x77:
310 strcat(str, "VI");
311 break;
312 default:
313 sprintf(un_str, "(%x)", ha->fw_attributes);
314 strcat(str, un_str);
315 break;
316 }
317 if (ha->fw_attributes & 0x100)
318 strcat(str, "X");
319
320 return (str);
321 }
322
323 static char *
324 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
325 {
326 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
327 ha->fw_minor_version,
328 ha->fw_subminor_version);
329
330 if (ha->fw_attributes & BIT_0)
331 strcat(str, "[Class 2] ");
332 if (ha->fw_attributes & BIT_1)
333 strcat(str, "[IP] ");
334 if (ha->fw_attributes & BIT_2)
335 strcat(str, "[Multi-ID] ");
336 if (ha->fw_attributes & BIT_3)
337 strcat(str, "[SB-2] ");
338 if (ha->fw_attributes & BIT_4)
339 strcat(str, "[T10 CRC] ");
340 if (ha->fw_attributes & BIT_5)
341 strcat(str, "[VI] ");
342 if (ha->fw_attributes & BIT_10)
343 strcat(str, "[84XX] ");
344 if (ha->fw_attributes & BIT_13)
345 strcat(str, "[Experimental]");
346 return str;
347 }
348
349 static inline srb_t *
350 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
351 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
352 {
353 srb_t *sp;
354
355 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
356 if (!sp)
357 return sp;
358
359 sp->ha = ha;
360 sp->fcport = fcport;
361 sp->cmd = cmd;
362 sp->flags = 0;
363 CMD_SP(cmd) = (void *)sp;
364 cmd->scsi_done = done;
365
366 return sp;
367 }
368
369 static int
370 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
371 {
372 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
373 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
374 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
375 srb_t *sp;
376 int rval;
377
378 if (unlikely(pci_channel_offline(ha->pdev))) {
379 cmd->result = DID_REQUEUE << 16;
380 goto qc_fail_command;
381 }
382
383 rval = fc_remote_port_chkready(rport);
384 if (rval) {
385 cmd->result = rval;
386 goto qc_fail_command;
387 }
388
389 /* Close window on fcport/rport state-transitioning. */
390 if (!*(fc_port_t **)rport->dd_data) {
391 cmd->result = DID_IMM_RETRY << 16;
392 goto qc_fail_command;
393 }
394
395 if (atomic_read(&fcport->state) != FCS_ONLINE) {
396 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
397 atomic_read(&ha->loop_state) == LOOP_DEAD) {
398 cmd->result = DID_NO_CONNECT << 16;
399 goto qc_fail_command;
400 }
401 goto qc_host_busy;
402 }
403
404 spin_unlock_irq(ha->host->host_lock);
405
406 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
407 if (!sp)
408 goto qc_host_busy_lock;
409
410 rval = qla2x00_start_scsi(sp);
411 if (rval != QLA_SUCCESS)
412 goto qc_host_busy_free_sp;
413
414 spin_lock_irq(ha->host->host_lock);
415
416 return 0;
417
418 qc_host_busy_free_sp:
419 qla2x00_sp_free_dma(ha, sp);
420 mempool_free(sp, ha->srb_mempool);
421
422 qc_host_busy_lock:
423 spin_lock_irq(ha->host->host_lock);
424
425 qc_host_busy:
426 return SCSI_MLQUEUE_HOST_BUSY;
427
428 qc_fail_command:
429 done(cmd);
430
431 return 0;
432 }
433
434
435 static int
436 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
437 {
438 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
439 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
440 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
441 srb_t *sp;
442 int rval;
443 scsi_qla_host_t *pha = to_qla_parent(ha);
444
445 if (unlikely(pci_channel_offline(ha->pdev))) {
446 cmd->result = DID_REQUEUE << 16;
447 goto qc24_fail_command;
448 }
449
450 rval = fc_remote_port_chkready(rport);
451 if (rval) {
452 cmd->result = rval;
453 goto qc24_fail_command;
454 }
455
456 /* Close window on fcport/rport state-transitioning. */
457 if (!*(fc_port_t **)rport->dd_data) {
458 cmd->result = DID_IMM_RETRY << 16;
459 goto qc24_fail_command;
460 }
461
462 if (atomic_read(&fcport->state) != FCS_ONLINE) {
463 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
464 atomic_read(&pha->loop_state) == LOOP_DEAD) {
465 cmd->result = DID_NO_CONNECT << 16;
466 goto qc24_fail_command;
467 }
468 goto qc24_host_busy;
469 }
470
471 spin_unlock_irq(ha->host->host_lock);
472
473 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
474 if (!sp)
475 goto qc24_host_busy_lock;
476
477 rval = qla24xx_start_scsi(sp);
478 if (rval != QLA_SUCCESS)
479 goto qc24_host_busy_free_sp;
480
481 spin_lock_irq(ha->host->host_lock);
482
483 return 0;
484
485 qc24_host_busy_free_sp:
486 qla2x00_sp_free_dma(pha, sp);
487 mempool_free(sp, pha->srb_mempool);
488
489 qc24_host_busy_lock:
490 spin_lock_irq(ha->host->host_lock);
491
492 qc24_host_busy:
493 return SCSI_MLQUEUE_HOST_BUSY;
494
495 qc24_fail_command:
496 done(cmd);
497
498 return 0;
499 }
500
501
502 /*
503 * qla2x00_eh_wait_on_command
504 * Waits for the command to be returned by the Firmware for some
505 * max time.
506 *
507 * Input:
508 * ha = actual ha whose done queue will contain the command
509 * returned by firmware.
510 * cmd = Scsi Command to wait on.
511 * flag = Abort/Reset(Bus or Device Reset)
512 *
513 * Return:
514 * Not Found : 0
515 * Found : 1
516 */
517 static int
518 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
519 {
520 #define ABORT_POLLING_PERIOD 1000
521 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
522 unsigned long wait_iter = ABORT_WAIT_ITER;
523 int ret = QLA_SUCCESS;
524
525 while (CMD_SP(cmd)) {
526 msleep(ABORT_POLLING_PERIOD);
527
528 if (--wait_iter)
529 break;
530 }
531 if (CMD_SP(cmd))
532 ret = QLA_FUNCTION_FAILED;
533
534 return ret;
535 }
536
537 /*
538 * qla2x00_wait_for_hba_online
539 * Wait till the HBA is online after going through
540 * <= MAX_RETRIES_OF_ISP_ABORT or
541 * finally HBA is disabled ie marked offline
542 *
543 * Input:
544 * ha - pointer to host adapter structure
545 *
546 * Note:
547 * Does context switching-Release SPIN_LOCK
548 * (if any) before calling this routine.
549 *
550 * Return:
551 * Success (Adapter is online) : 0
552 * Failed (Adapter is offline/disabled) : 1
553 */
554 int
555 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
556 {
557 int return_status;
558 unsigned long wait_online;
559 scsi_qla_host_t *pha = to_qla_parent(ha);
560
561 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
562 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
563 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
564 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
565 pha->dpc_active) && time_before(jiffies, wait_online)) {
566
567 msleep(1000);
568 }
569 if (pha->flags.online)
570 return_status = QLA_SUCCESS;
571 else
572 return_status = QLA_FUNCTION_FAILED;
573
574 return (return_status);
575 }
576
577 /*
578 * qla2x00_wait_for_loop_ready
579 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
580 * to be in LOOP_READY state.
581 * Input:
582 * ha - pointer to host adapter structure
583 *
584 * Note:
585 * Does context switching-Release SPIN_LOCK
586 * (if any) before calling this routine.
587 *
588 *
589 * Return:
590 * Success (LOOP_READY) : 0
591 * Failed (LOOP_NOT_READY) : 1
592 */
593 static inline int
594 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
595 {
596 int return_status = QLA_SUCCESS;
597 unsigned long loop_timeout ;
598 scsi_qla_host_t *pha = to_qla_parent(ha);
599
600 /* wait for 5 min at the max for loop to be ready */
601 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
602
603 while ((!atomic_read(&pha->loop_down_timer) &&
604 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
605 atomic_read(&pha->loop_state) != LOOP_READY) {
606 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
607 return_status = QLA_FUNCTION_FAILED;
608 break;
609 }
610 msleep(1000);
611 if (time_after_eq(jiffies, loop_timeout)) {
612 return_status = QLA_FUNCTION_FAILED;
613 break;
614 }
615 }
616 return (return_status);
617 }
618
619 static void
620 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
621 {
622 struct Scsi_Host *shost = cmnd->device->host;
623 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
624 unsigned long flags;
625
626 spin_lock_irqsave(shost->host_lock, flags);
627 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
628 spin_unlock_irqrestore(shost->host_lock, flags);
629 msleep(1000);
630 spin_lock_irqsave(shost->host_lock, flags);
631 }
632 spin_unlock_irqrestore(shost->host_lock, flags);
633 return;
634 }
635
636 /**************************************************************************
637 * qla2xxx_eh_abort
638 *
639 * Description:
640 * The abort function will abort the specified command.
641 *
642 * Input:
643 * cmd = Linux SCSI command packet to be aborted.
644 *
645 * Returns:
646 * Either SUCCESS or FAILED.
647 *
648 * Note:
649 * Only return FAILED if command not returned by firmware.
650 **************************************************************************/
651 static int
652 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
653 {
654 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
655 srb_t *sp;
656 int ret, i;
657 unsigned int id, lun;
658 unsigned long serial;
659 unsigned long flags;
660 int wait = 0;
661 scsi_qla_host_t *pha = to_qla_parent(ha);
662
663 qla2x00_block_error_handler(cmd);
664
665 if (!CMD_SP(cmd))
666 return SUCCESS;
667
668 ret = SUCCESS;
669
670 id = cmd->device->id;
671 lun = cmd->device->lun;
672 serial = cmd->serial_number;
673
674 /* Check active list for command command. */
675 spin_lock_irqsave(&pha->hardware_lock, flags);
676 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
677 sp = pha->outstanding_cmds[i];
678
679 if (sp == NULL)
680 continue;
681
682 if (sp->cmd != cmd)
683 continue;
684
685 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
686 __func__, ha->host_no, sp, serial));
687
688 spin_unlock_irqrestore(&pha->hardware_lock, flags);
689 if (ha->isp_ops->abort_command(ha, sp)) {
690 DEBUG2(printk("%s(%ld): abort_command "
691 "mbx failed.\n", __func__, ha->host_no));
692 } else {
693 DEBUG3(printk("%s(%ld): abort_command "
694 "mbx success.\n", __func__, ha->host_no));
695 wait = 1;
696 }
697 spin_lock_irqsave(&pha->hardware_lock, flags);
698
699 break;
700 }
701 spin_unlock_irqrestore(&pha->hardware_lock, flags);
702
703 /* Wait for the command to be returned. */
704 if (wait) {
705 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
706 qla_printk(KERN_ERR, ha,
707 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
708 "%x.\n", ha->host_no, id, lun, serial, ret);
709 ret = FAILED;
710 }
711 }
712
713 qla_printk(KERN_INFO, ha,
714 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
715 ha->host_no, id, lun, wait, serial, ret);
716
717 return ret;
718 }
719
720 enum nexus_wait_type {
721 WAIT_HOST = 0,
722 WAIT_TARGET,
723 WAIT_LUN,
724 };
725
726 static int
727 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
728 unsigned int l, enum nexus_wait_type type)
729 {
730 int cnt, match, status;
731 srb_t *sp;
732 unsigned long flags;
733 scsi_qla_host_t *pha = to_qla_parent(ha);
734
735 status = QLA_SUCCESS;
736 spin_lock_irqsave(&pha->hardware_lock, flags);
737 for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
738 cnt++) {
739 sp = pha->outstanding_cmds[cnt];
740 if (!sp)
741 continue;
742 if (ha->vp_idx != sp->ha->vp_idx)
743 continue;
744 match = 0;
745 switch (type) {
746 case WAIT_HOST:
747 match = 1;
748 break;
749 case WAIT_TARGET:
750 match = sp->cmd->device->id == t;
751 break;
752 case WAIT_LUN:
753 match = (sp->cmd->device->id == t &&
754 sp->cmd->device->lun == l);
755 break;
756 }
757 if (!match)
758 continue;
759
760 spin_unlock_irqrestore(&pha->hardware_lock, flags);
761 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
762 spin_lock_irqsave(&pha->hardware_lock, flags);
763 }
764 spin_unlock_irqrestore(&pha->hardware_lock, flags);
765
766 return status;
767 }
768
769 static char *reset_errors[] = {
770 "HBA not online",
771 "HBA not ready",
772 "Task management failed",
773 "Waiting for command completions",
774 };
775
776 static int
777 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
778 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
779 {
780 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
781 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
782 int err;
783
784 qla2x00_block_error_handler(cmd);
785
786 if (!fcport)
787 return FAILED;
788
789 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
790 ha->host_no, cmd->device->id, cmd->device->lun, name);
791
792 err = 0;
793 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
794 goto eh_reset_failed;
795 err = 1;
796 if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
797 goto eh_reset_failed;
798 err = 2;
799 if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
800 goto eh_reset_failed;
801 err = 3;
802 if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
803 cmd->device->lun, type) != QLA_SUCCESS)
804 goto eh_reset_failed;
805
806 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
807 ha->host_no, cmd->device->id, cmd->device->lun, name);
808
809 return SUCCESS;
810
811 eh_reset_failed:
812 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
813 ha->host_no, cmd->device->id, cmd->device->lun, name,
814 reset_errors[err]);
815 return FAILED;
816 }
817
818 static int
819 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
820 {
821 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
822
823 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
824 ha->isp_ops->lun_reset);
825 }
826
827 static int
828 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
829 {
830 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
831
832 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
833 ha->isp_ops->target_reset);
834 }
835
836 /**************************************************************************
837 * qla2xxx_eh_bus_reset
838 *
839 * Description:
840 * The bus reset function will reset the bus and abort any executing
841 * commands.
842 *
843 * Input:
844 * cmd = Linux SCSI command packet of the command that cause the
845 * bus reset.
846 *
847 * Returns:
848 * SUCCESS/FAILURE (defined as macro in scsi.h).
849 *
850 **************************************************************************/
851 static int
852 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
853 {
854 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
855 scsi_qla_host_t *pha = to_qla_parent(ha);
856 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
857 int ret = FAILED;
858 unsigned int id, lun;
859 unsigned long serial;
860
861 qla2x00_block_error_handler(cmd);
862
863 id = cmd->device->id;
864 lun = cmd->device->lun;
865 serial = cmd->serial_number;
866
867 if (!fcport)
868 return ret;
869
870 qla_printk(KERN_INFO, ha,
871 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
872
873 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
874 DEBUG2(printk("%s failed:board disabled\n",__func__));
875 goto eh_bus_reset_done;
876 }
877
878 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
879 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
880 ret = SUCCESS;
881 }
882 if (ret == FAILED)
883 goto eh_bus_reset_done;
884
885 /* Flush outstanding commands. */
886 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
887 QLA_SUCCESS)
888 ret = FAILED;
889
890 eh_bus_reset_done:
891 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
892 (ret == FAILED) ? "failed" : "succeded");
893
894 return ret;
895 }
896
897 /**************************************************************************
898 * qla2xxx_eh_host_reset
899 *
900 * Description:
901 * The reset function will reset the Adapter.
902 *
903 * Input:
904 * cmd = Linux SCSI command packet of the command that cause the
905 * adapter reset.
906 *
907 * Returns:
908 * Either SUCCESS or FAILED.
909 *
910 * Note:
911 **************************************************************************/
912 static int
913 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
914 {
915 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
916 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
917 int ret = FAILED;
918 unsigned int id, lun;
919 unsigned long serial;
920 scsi_qla_host_t *pha = to_qla_parent(ha);
921
922 qla2x00_block_error_handler(cmd);
923
924 id = cmd->device->id;
925 lun = cmd->device->lun;
926 serial = cmd->serial_number;
927
928 if (!fcport)
929 return ret;
930
931 qla_printk(KERN_INFO, ha,
932 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
933
934 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
935 goto eh_host_reset_lock;
936
937 /*
938 * Fixme-may be dpc thread is active and processing
939 * loop_resync,so wait a while for it to
940 * be completed and then issue big hammer.Otherwise
941 * it may cause I/O failure as big hammer marks the
942 * devices as lost kicking of the port_down_timer
943 * while dpc is stuck for the mailbox to complete.
944 */
945 qla2x00_wait_for_loop_ready(ha);
946 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
947 if (qla2x00_abort_isp(pha)) {
948 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
949 /* failed. schedule dpc to try */
950 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
951
952 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
953 goto eh_host_reset_lock;
954 }
955 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
956
957 /* Waiting for our command in done_queue to be returned to OS.*/
958 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
959 QLA_SUCCESS)
960 ret = SUCCESS;
961
962 if (ha->parent)
963 qla2x00_vp_abort_isp(ha);
964
965 eh_host_reset_lock:
966 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
967 (ret == FAILED) ? "failed" : "succeded");
968
969 return ret;
970 }
971
972 /*
973 * qla2x00_loop_reset
974 * Issue loop reset.
975 *
976 * Input:
977 * ha = adapter block pointer.
978 *
979 * Returns:
980 * 0 = success
981 */
982 int
983 qla2x00_loop_reset(scsi_qla_host_t *ha)
984 {
985 int ret;
986 struct fc_port *fcport;
987
988 if (ha->flags.enable_lip_full_login) {
989 ret = qla2x00_full_login_lip(ha);
990 if (ret != QLA_SUCCESS) {
991 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
992 "full_login_lip=%d.\n", __func__, ha->host_no,
993 ret));
994 }
995 atomic_set(&ha->loop_state, LOOP_DOWN);
996 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
997 qla2x00_mark_all_devices_lost(ha, 0);
998 qla2x00_wait_for_loop_ready(ha);
999 }
1000
1001 if (ha->flags.enable_lip_reset) {
1002 ret = qla2x00_lip_reset(ha);
1003 if (ret != QLA_SUCCESS) {
1004 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1005 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1006 }
1007 qla2x00_wait_for_loop_ready(ha);
1008 }
1009
1010 if (ha->flags.enable_target_reset) {
1011 list_for_each_entry(fcport, &ha->fcports, list) {
1012 if (fcport->port_type != FCT_TARGET)
1013 continue;
1014
1015 ret = ha->isp_ops->target_reset(fcport, 0);
1016 if (ret != QLA_SUCCESS) {
1017 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1018 "target_reset=%d d_id=%x.\n", __func__,
1019 ha->host_no, ret, fcport->d_id.b24));
1020 }
1021 }
1022 }
1023
1024 /* Issue marker command only when we are going to start the I/O */
1025 ha->marker_needed = 1;
1026
1027 return QLA_SUCCESS;
1028 }
1029
1030 void
1031 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1032 {
1033 int cnt;
1034 unsigned long flags;
1035 srb_t *sp;
1036
1037 spin_lock_irqsave(&ha->hardware_lock, flags);
1038 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1039 sp = ha->outstanding_cmds[cnt];
1040 if (sp) {
1041 ha->outstanding_cmds[cnt] = NULL;
1042 sp->flags = 0;
1043 sp->cmd->result = res;
1044 sp->cmd->host_scribble = (unsigned char *)NULL;
1045 qla2x00_sp_compl(ha, sp);
1046 }
1047 }
1048 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1049 }
1050
1051 static int
1052 qla2xxx_slave_alloc(struct scsi_device *sdev)
1053 {
1054 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1055
1056 if (!rport || fc_remote_port_chkready(rport))
1057 return -ENXIO;
1058
1059 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1060
1061 return 0;
1062 }
1063
1064 static int
1065 qla2xxx_slave_configure(struct scsi_device *sdev)
1066 {
1067 scsi_qla_host_t *ha = shost_priv(sdev->host);
1068 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1069
1070 if (sdev->tagged_supported)
1071 scsi_activate_tcq(sdev, ha->max_q_depth);
1072 else
1073 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1074
1075 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1076
1077 return 0;
1078 }
1079
1080 static void
1081 qla2xxx_slave_destroy(struct scsi_device *sdev)
1082 {
1083 sdev->hostdata = NULL;
1084 }
1085
1086 static int
1087 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1088 {
1089 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1090 return sdev->queue_depth;
1091 }
1092
1093 static int
1094 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1095 {
1096 if (sdev->tagged_supported) {
1097 scsi_set_tag_type(sdev, tag_type);
1098 if (tag_type)
1099 scsi_activate_tcq(sdev, sdev->queue_depth);
1100 else
1101 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1102 } else
1103 tag_type = 0;
1104
1105 return tag_type;
1106 }
1107
1108 /**
1109 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1110 * @ha: HA context
1111 *
1112 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1113 * supported addressing method.
1114 */
1115 static void
1116 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1117 {
1118 /* Assume a 32bit DMA mask. */
1119 ha->flags.enable_64bit_addressing = 0;
1120
1121 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1122 /* Any upper-dword bits set? */
1123 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1124 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1125 /* Ok, a 64bit DMA mask is applicable. */
1126 ha->flags.enable_64bit_addressing = 1;
1127 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1128 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1129 return;
1130 }
1131 }
1132
1133 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1134 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1135 }
1136
1137 static void
1138 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1139 {
1140 unsigned long flags = 0;
1141 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1142
1143 spin_lock_irqsave(&ha->hardware_lock, flags);
1144 ha->interrupts_on = 1;
1145 /* enable risc and host interrupts */
1146 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1147 RD_REG_WORD(&reg->ictrl);
1148 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1149
1150 }
1151
1152 static void
1153 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1154 {
1155 unsigned long flags = 0;
1156 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1157
1158 spin_lock_irqsave(&ha->hardware_lock, flags);
1159 ha->interrupts_on = 0;
1160 /* disable risc and host interrupts */
1161 WRT_REG_WORD(&reg->ictrl, 0);
1162 RD_REG_WORD(&reg->ictrl);
1163 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1164 }
1165
1166 static void
1167 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1168 {
1169 unsigned long flags = 0;
1170 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1171
1172 spin_lock_irqsave(&ha->hardware_lock, flags);
1173 ha->interrupts_on = 1;
1174 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1175 RD_REG_DWORD(&reg->ictrl);
1176 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1177 }
1178
1179 static void
1180 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1181 {
1182 unsigned long flags = 0;
1183 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1184
1185 spin_lock_irqsave(&ha->hardware_lock, flags);
1186 ha->interrupts_on = 0;
1187 WRT_REG_DWORD(&reg->ictrl, 0);
1188 RD_REG_DWORD(&reg->ictrl);
1189 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1190 }
1191
1192 static struct isp_operations qla2100_isp_ops = {
1193 .pci_config = qla2100_pci_config,
1194 .reset_chip = qla2x00_reset_chip,
1195 .chip_diag = qla2x00_chip_diag,
1196 .config_rings = qla2x00_config_rings,
1197 .reset_adapter = qla2x00_reset_adapter,
1198 .nvram_config = qla2x00_nvram_config,
1199 .update_fw_options = qla2x00_update_fw_options,
1200 .load_risc = qla2x00_load_risc,
1201 .pci_info_str = qla2x00_pci_info_str,
1202 .fw_version_str = qla2x00_fw_version_str,
1203 .intr_handler = qla2100_intr_handler,
1204 .enable_intrs = qla2x00_enable_intrs,
1205 .disable_intrs = qla2x00_disable_intrs,
1206 .abort_command = qla2x00_abort_command,
1207 .target_reset = qla2x00_abort_target,
1208 .lun_reset = qla2x00_lun_reset,
1209 .fabric_login = qla2x00_login_fabric,
1210 .fabric_logout = qla2x00_fabric_logout,
1211 .calc_req_entries = qla2x00_calc_iocbs_32,
1212 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1213 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1214 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1215 .read_nvram = qla2x00_read_nvram_data,
1216 .write_nvram = qla2x00_write_nvram_data,
1217 .fw_dump = qla2100_fw_dump,
1218 .beacon_on = NULL,
1219 .beacon_off = NULL,
1220 .beacon_blink = NULL,
1221 .read_optrom = qla2x00_read_optrom_data,
1222 .write_optrom = qla2x00_write_optrom_data,
1223 .get_flash_version = qla2x00_get_flash_version,
1224 };
1225
1226 static struct isp_operations qla2300_isp_ops = {
1227 .pci_config = qla2300_pci_config,
1228 .reset_chip = qla2x00_reset_chip,
1229 .chip_diag = qla2x00_chip_diag,
1230 .config_rings = qla2x00_config_rings,
1231 .reset_adapter = qla2x00_reset_adapter,
1232 .nvram_config = qla2x00_nvram_config,
1233 .update_fw_options = qla2x00_update_fw_options,
1234 .load_risc = qla2x00_load_risc,
1235 .pci_info_str = qla2x00_pci_info_str,
1236 .fw_version_str = qla2x00_fw_version_str,
1237 .intr_handler = qla2300_intr_handler,
1238 .enable_intrs = qla2x00_enable_intrs,
1239 .disable_intrs = qla2x00_disable_intrs,
1240 .abort_command = qla2x00_abort_command,
1241 .target_reset = qla2x00_abort_target,
1242 .lun_reset = qla2x00_lun_reset,
1243 .fabric_login = qla2x00_login_fabric,
1244 .fabric_logout = qla2x00_fabric_logout,
1245 .calc_req_entries = qla2x00_calc_iocbs_32,
1246 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1247 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1248 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1249 .read_nvram = qla2x00_read_nvram_data,
1250 .write_nvram = qla2x00_write_nvram_data,
1251 .fw_dump = qla2300_fw_dump,
1252 .beacon_on = qla2x00_beacon_on,
1253 .beacon_off = qla2x00_beacon_off,
1254 .beacon_blink = qla2x00_beacon_blink,
1255 .read_optrom = qla2x00_read_optrom_data,
1256 .write_optrom = qla2x00_write_optrom_data,
1257 .get_flash_version = qla2x00_get_flash_version,
1258 };
1259
1260 static struct isp_operations qla24xx_isp_ops = {
1261 .pci_config = qla24xx_pci_config,
1262 .reset_chip = qla24xx_reset_chip,
1263 .chip_diag = qla24xx_chip_diag,
1264 .config_rings = qla24xx_config_rings,
1265 .reset_adapter = qla24xx_reset_adapter,
1266 .nvram_config = qla24xx_nvram_config,
1267 .update_fw_options = qla24xx_update_fw_options,
1268 .load_risc = qla24xx_load_risc,
1269 .pci_info_str = qla24xx_pci_info_str,
1270 .fw_version_str = qla24xx_fw_version_str,
1271 .intr_handler = qla24xx_intr_handler,
1272 .enable_intrs = qla24xx_enable_intrs,
1273 .disable_intrs = qla24xx_disable_intrs,
1274 .abort_command = qla24xx_abort_command,
1275 .target_reset = qla24xx_abort_target,
1276 .lun_reset = qla24xx_lun_reset,
1277 .fabric_login = qla24xx_login_fabric,
1278 .fabric_logout = qla24xx_fabric_logout,
1279 .calc_req_entries = NULL,
1280 .build_iocbs = NULL,
1281 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1282 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1283 .read_nvram = qla24xx_read_nvram_data,
1284 .write_nvram = qla24xx_write_nvram_data,
1285 .fw_dump = qla24xx_fw_dump,
1286 .beacon_on = qla24xx_beacon_on,
1287 .beacon_off = qla24xx_beacon_off,
1288 .beacon_blink = qla24xx_beacon_blink,
1289 .read_optrom = qla24xx_read_optrom_data,
1290 .write_optrom = qla24xx_write_optrom_data,
1291 .get_flash_version = qla24xx_get_flash_version,
1292 };
1293
1294 static struct isp_operations qla25xx_isp_ops = {
1295 .pci_config = qla25xx_pci_config,
1296 .reset_chip = qla24xx_reset_chip,
1297 .chip_diag = qla24xx_chip_diag,
1298 .config_rings = qla24xx_config_rings,
1299 .reset_adapter = qla24xx_reset_adapter,
1300 .nvram_config = qla24xx_nvram_config,
1301 .update_fw_options = qla24xx_update_fw_options,
1302 .load_risc = qla24xx_load_risc,
1303 .pci_info_str = qla24xx_pci_info_str,
1304 .fw_version_str = qla24xx_fw_version_str,
1305 .intr_handler = qla24xx_intr_handler,
1306 .enable_intrs = qla24xx_enable_intrs,
1307 .disable_intrs = qla24xx_disable_intrs,
1308 .abort_command = qla24xx_abort_command,
1309 .target_reset = qla24xx_abort_target,
1310 .lun_reset = qla24xx_lun_reset,
1311 .fabric_login = qla24xx_login_fabric,
1312 .fabric_logout = qla24xx_fabric_logout,
1313 .calc_req_entries = NULL,
1314 .build_iocbs = NULL,
1315 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1316 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1317 .read_nvram = qla25xx_read_nvram_data,
1318 .write_nvram = qla25xx_write_nvram_data,
1319 .fw_dump = qla25xx_fw_dump,
1320 .beacon_on = qla24xx_beacon_on,
1321 .beacon_off = qla24xx_beacon_off,
1322 .beacon_blink = qla24xx_beacon_blink,
1323 .read_optrom = qla25xx_read_optrom_data,
1324 .write_optrom = qla24xx_write_optrom_data,
1325 .get_flash_version = qla24xx_get_flash_version,
1326 };
1327
1328 static inline void
1329 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1330 {
1331 ha->device_type = DT_EXTENDED_IDS;
1332 switch (ha->pdev->device) {
1333 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1334 ha->device_type |= DT_ISP2100;
1335 ha->device_type &= ~DT_EXTENDED_IDS;
1336 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1337 break;
1338 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1339 ha->device_type |= DT_ISP2200;
1340 ha->device_type &= ~DT_EXTENDED_IDS;
1341 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1342 break;
1343 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1344 ha->device_type |= DT_ISP2300;
1345 ha->device_type |= DT_ZIO_SUPPORTED;
1346 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1347 break;
1348 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1349 ha->device_type |= DT_ISP2312;
1350 ha->device_type |= DT_ZIO_SUPPORTED;
1351 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1352 break;
1353 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1354 ha->device_type |= DT_ISP2322;
1355 ha->device_type |= DT_ZIO_SUPPORTED;
1356 if (ha->pdev->subsystem_vendor == 0x1028 &&
1357 ha->pdev->subsystem_device == 0x0170)
1358 ha->device_type |= DT_OEM_001;
1359 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1360 break;
1361 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1362 ha->device_type |= DT_ISP6312;
1363 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1364 break;
1365 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1366 ha->device_type |= DT_ISP6322;
1367 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1368 break;
1369 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1370 ha->device_type |= DT_ISP2422;
1371 ha->device_type |= DT_ZIO_SUPPORTED;
1372 ha->device_type |= DT_FWI2;
1373 ha->device_type |= DT_IIDMA;
1374 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1375 break;
1376 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1377 ha->device_type |= DT_ISP2432;
1378 ha->device_type |= DT_ZIO_SUPPORTED;
1379 ha->device_type |= DT_FWI2;
1380 ha->device_type |= DT_IIDMA;
1381 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1382 break;
1383 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1384 ha->device_type |= DT_ISP8432;
1385 ha->device_type |= DT_ZIO_SUPPORTED;
1386 ha->device_type |= DT_FWI2;
1387 ha->device_type |= DT_IIDMA;
1388 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1389 break;
1390 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1391 ha->device_type |= DT_ISP5422;
1392 ha->device_type |= DT_FWI2;
1393 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1394 break;
1395 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1396 ha->device_type |= DT_ISP5432;
1397 ha->device_type |= DT_FWI2;
1398 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1399 break;
1400 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1401 ha->device_type |= DT_ISP2532;
1402 ha->device_type |= DT_ZIO_SUPPORTED;
1403 ha->device_type |= DT_FWI2;
1404 ha->device_type |= DT_IIDMA;
1405 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1406 break;
1407 }
1408 }
1409
1410 static int
1411 qla2x00_iospace_config(scsi_qla_host_t *ha)
1412 {
1413 resource_size_t pio;
1414
1415 if (pci_request_selected_regions(ha->pdev, ha->bars,
1416 QLA2XXX_DRIVER_NAME)) {
1417 qla_printk(KERN_WARNING, ha,
1418 "Failed to reserve PIO/MMIO regions (%s)\n",
1419 pci_name(ha->pdev));
1420
1421 goto iospace_error_exit;
1422 }
1423 if (!(ha->bars & 1))
1424 goto skip_pio;
1425
1426 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1427 pio = pci_resource_start(ha->pdev, 0);
1428 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1429 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1430 qla_printk(KERN_WARNING, ha,
1431 "Invalid PCI I/O region size (%s)...\n",
1432 pci_name(ha->pdev));
1433 pio = 0;
1434 }
1435 } else {
1436 qla_printk(KERN_WARNING, ha,
1437 "region #0 not a PIO resource (%s)...\n",
1438 pci_name(ha->pdev));
1439 pio = 0;
1440 }
1441 ha->pio_address = pio;
1442
1443 skip_pio:
1444 /* Use MMIO operations for all accesses. */
1445 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1446 qla_printk(KERN_ERR, ha,
1447 "region #1 not an MMIO resource (%s), aborting\n",
1448 pci_name(ha->pdev));
1449 goto iospace_error_exit;
1450 }
1451 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1452 qla_printk(KERN_ERR, ha,
1453 "Invalid PCI mem region size (%s), aborting\n",
1454 pci_name(ha->pdev));
1455 goto iospace_error_exit;
1456 }
1457
1458 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1459 if (!ha->iobase) {
1460 qla_printk(KERN_ERR, ha,
1461 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1462
1463 goto iospace_error_exit;
1464 }
1465
1466 return (0);
1467
1468 iospace_error_exit:
1469 return (-ENOMEM);
1470 }
1471
1472 static void
1473 qla2xxx_scan_start(struct Scsi_Host *shost)
1474 {
1475 scsi_qla_host_t *ha = shost_priv(shost);
1476
1477 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1478 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1479 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1480 }
1481
1482 static int
1483 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1484 {
1485 scsi_qla_host_t *ha = shost_priv(shost);
1486
1487 if (!ha->host)
1488 return 1;
1489 if (time > ha->loop_reset_delay * HZ)
1490 return 1;
1491
1492 return atomic_read(&ha->loop_state) == LOOP_READY;
1493 }
1494
1495 /*
1496 * PCI driver interface
1497 */
1498 static int __devinit
1499 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1500 {
1501 int ret = -ENODEV;
1502 struct Scsi_Host *host;
1503 scsi_qla_host_t *ha;
1504 char pci_info[30];
1505 char fw_str[30];
1506 struct scsi_host_template *sht;
1507 int bars, mem_only = 0;
1508
1509 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1510 sht = &qla2x00_driver_template;
1511 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1512 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1513 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1514 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1515 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1516 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1517 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1518 sht = &qla24xx_driver_template;
1519 mem_only = 1;
1520 }
1521
1522 if (mem_only) {
1523 if (pci_enable_device_mem(pdev))
1524 goto probe_out;
1525 } else {
1526 if (pci_enable_device(pdev))
1527 goto probe_out;
1528 }
1529
1530 if (pci_find_aer_capability(pdev))
1531 if (pci_enable_pcie_error_reporting(pdev))
1532 goto probe_out;
1533
1534 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1535 if (host == NULL) {
1536 printk(KERN_WARNING
1537 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1538 goto probe_disable_device;
1539 }
1540
1541 /* Clear our data area */
1542 ha = shost_priv(host);
1543 memset(ha, 0, sizeof(scsi_qla_host_t));
1544
1545 ha->pdev = pdev;
1546 ha->host = host;
1547 ha->host_no = host->host_no;
1548 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1549 ha->parent = NULL;
1550 ha->bars = bars;
1551 ha->mem_only = mem_only;
1552 spin_lock_init(&ha->hardware_lock);
1553
1554 /* Set ISP-type information. */
1555 qla2x00_set_isp_flags(ha);
1556
1557 /* Configure PCI I/O space */
1558 ret = qla2x00_iospace_config(ha);
1559 if (ret)
1560 goto probe_failed;
1561
1562 qla_printk(KERN_INFO, ha,
1563 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1564 ha->iobase);
1565
1566 ha->prev_topology = 0;
1567 ha->init_cb_size = sizeof(init_cb_t);
1568 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1569 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1570 ha->optrom_size = OPTROM_SIZE_2300;
1571
1572 ha->max_q_depth = MAX_Q_DEPTH;
1573 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1574 ha->max_q_depth = ql2xmaxqdepth;
1575
1576 /* Assign ISP specific operations. */
1577 if (IS_QLA2100(ha)) {
1578 host->max_id = MAX_TARGETS_2100;
1579 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1580 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1581 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1582 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1583 host->sg_tablesize = 32;
1584 ha->gid_list_info_size = 4;
1585 ha->isp_ops = &qla2100_isp_ops;
1586 } else if (IS_QLA2200(ha)) {
1587 host->max_id = MAX_TARGETS_2200;
1588 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1589 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1590 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1591 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1592 ha->gid_list_info_size = 4;
1593 ha->isp_ops = &qla2100_isp_ops;
1594 } else if (IS_QLA23XX(ha)) {
1595 host->max_id = MAX_TARGETS_2200;
1596 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1597 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1598 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1599 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1600 ha->gid_list_info_size = 6;
1601 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1602 ha->optrom_size = OPTROM_SIZE_2322;
1603 ha->isp_ops = &qla2300_isp_ops;
1604 } else if (IS_QLA24XX_TYPE(ha)) {
1605 host->max_id = MAX_TARGETS_2200;
1606 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1607 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1608 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1609 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1610 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1611 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1612 ha->gid_list_info_size = 8;
1613 ha->optrom_size = OPTROM_SIZE_24XX;
1614 ha->isp_ops = &qla24xx_isp_ops;
1615 } else if (IS_QLA25XX(ha)) {
1616 host->max_id = MAX_TARGETS_2200;
1617 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1618 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1619 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1620 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1621 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1622 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1623 ha->gid_list_info_size = 8;
1624 ha->optrom_size = OPTROM_SIZE_25XX;
1625 ha->isp_ops = &qla25xx_isp_ops;
1626 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1627 FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1628 }
1629 host->can_queue = ha->request_q_length + 128;
1630
1631 /* load the F/W, read paramaters, and init the H/W */
1632 ha->instance = num_hosts;
1633
1634 init_MUTEX(&ha->vport_sem);
1635 init_completion(&ha->mbx_cmd_comp);
1636 complete(&ha->mbx_cmd_comp);
1637 init_completion(&ha->mbx_intr_comp);
1638
1639 INIT_LIST_HEAD(&ha->list);
1640 INIT_LIST_HEAD(&ha->fcports);
1641 INIT_LIST_HEAD(&ha->vp_list);
1642 INIT_LIST_HEAD(&ha->work_list);
1643
1644 set_bit(0, (unsigned long *) ha->vp_idx_map);
1645
1646 qla2x00_config_dma_addressing(ha);
1647 if (qla2x00_mem_alloc(ha)) {
1648 qla_printk(KERN_WARNING, ha,
1649 "[ERROR] Failed to allocate memory for adapter\n");
1650
1651 ret = -ENOMEM;
1652 goto probe_failed;
1653 }
1654
1655 if (qla2x00_initialize_adapter(ha)) {
1656 qla_printk(KERN_WARNING, ha,
1657 "Failed to initialize adapter\n");
1658
1659 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1660 "Adapter flags %x.\n",
1661 ha->host_no, ha->device_flags));
1662
1663 ret = -ENODEV;
1664 goto probe_failed;
1665 }
1666
1667 /*
1668 * Startup the kernel thread for this host adapter
1669 */
1670 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1671 "%s_dpc", ha->host_str);
1672 if (IS_ERR(ha->dpc_thread)) {
1673 qla_printk(KERN_WARNING, ha,
1674 "Unable to start DPC thread!\n");
1675 ret = PTR_ERR(ha->dpc_thread);
1676 goto probe_failed;
1677 }
1678
1679 host->this_id = 255;
1680 host->cmd_per_lun = 3;
1681 host->unique_id = ha->instance;
1682 host->max_cmd_len = MAX_CMDSZ;
1683 host->max_channel = MAX_BUSES - 1;
1684 host->max_lun = MAX_LUNS;
1685 host->transportt = qla2xxx_transport_template;
1686
1687 ret = qla2x00_request_irqs(ha);
1688 if (ret)
1689 goto probe_failed;
1690
1691 /* Initialized the timer */
1692 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1693
1694 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1695 ha->host_no, ha));
1696
1697 pci_set_drvdata(pdev, ha);
1698
1699 ha->flags.init_done = 1;
1700 ha->flags.online = 1;
1701
1702 num_hosts++;
1703
1704 ret = scsi_add_host(host, &pdev->dev);
1705 if (ret)
1706 goto probe_failed;
1707
1708 scsi_scan_host(host);
1709
1710 qla2x00_alloc_sysfs_attr(ha);
1711
1712 qla2x00_init_host_attr(ha);
1713
1714 qla2x00_dfs_setup(ha);
1715
1716 qla_printk(KERN_INFO, ha, "\n"
1717 " QLogic Fibre Channel HBA Driver: %s\n"
1718 " QLogic %s - %s\n"
1719 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1720 qla2x00_version_str, ha->model_number,
1721 ha->model_desc ? ha->model_desc: "", pdev->device,
1722 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1723 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1724 ha->isp_ops->fw_version_str(ha, fw_str));
1725
1726 return 0;
1727
1728 probe_failed:
1729 qla2x00_free_device(ha);
1730
1731 scsi_host_put(host);
1732
1733 probe_disable_device:
1734 pci_disable_device(pdev);
1735
1736 probe_out:
1737 return ret;
1738 }
1739
1740 static void
1741 qla2x00_remove_one(struct pci_dev *pdev)
1742 {
1743 scsi_qla_host_t *ha;
1744
1745 ha = pci_get_drvdata(pdev);
1746
1747 qla2x00_dfs_remove(ha);
1748
1749 qla84xx_put_chip(ha);
1750
1751 qla2x00_free_sysfs_attr(ha);
1752
1753 fc_remove_host(ha->host);
1754
1755 scsi_remove_host(ha->host);
1756
1757 qla2x00_free_device(ha);
1758
1759 scsi_host_put(ha->host);
1760
1761 pci_disable_device(pdev);
1762 pci_set_drvdata(pdev, NULL);
1763 }
1764
1765 static void
1766 qla2x00_free_device(scsi_qla_host_t *ha)
1767 {
1768 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1769
1770 /* Disable timer */
1771 if (ha->timer_active)
1772 qla2x00_stop_timer(ha);
1773
1774 ha->flags.online = 0;
1775
1776 /* Kill the kernel thread for this host */
1777 if (ha->dpc_thread) {
1778 struct task_struct *t = ha->dpc_thread;
1779
1780 /*
1781 * qla2xxx_wake_dpc checks for ->dpc_thread
1782 * so we need to zero it out.
1783 */
1784 ha->dpc_thread = NULL;
1785 kthread_stop(t);
1786 }
1787
1788 if (ha->flags.fce_enabled)
1789 qla2x00_disable_fce_trace(ha, NULL, NULL);
1790
1791 if (ha->eft)
1792 qla2x00_disable_eft_trace(ha);
1793
1794 /* Stop currently executing firmware. */
1795 qla2x00_try_to_stop_firmware(ha);
1796
1797 /* turn-off interrupts on the card */
1798 if (ha->interrupts_on)
1799 ha->isp_ops->disable_intrs(ha);
1800
1801 qla2x00_mem_free(ha);
1802
1803 qla2x00_free_irqs(ha);
1804
1805 /* release io space registers */
1806 if (ha->iobase)
1807 iounmap(ha->iobase);
1808 pci_release_selected_regions(ha->pdev, ha->bars);
1809 }
1810
1811 static inline void
1812 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1813 int defer)
1814 {
1815 unsigned long flags;
1816 struct fc_rport *rport;
1817
1818 if (!fcport->rport)
1819 return;
1820
1821 rport = fcport->rport;
1822 if (defer) {
1823 spin_lock_irqsave(&fcport->rport_lock, flags);
1824 fcport->drport = rport;
1825 fcport->rport = NULL;
1826 *(fc_port_t **)rport->dd_data = NULL;
1827 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1828 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1829 } else {
1830 spin_lock_irqsave(&fcport->rport_lock, flags);
1831 fcport->rport = NULL;
1832 *(fc_port_t **)rport->dd_data = NULL;
1833 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1834 fc_remote_port_delete(rport);
1835 }
1836 }
1837
1838 /*
1839 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1840 *
1841 * Input: ha = adapter block pointer. fcport = port structure pointer.
1842 *
1843 * Return: None.
1844 *
1845 * Context:
1846 */
1847 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1848 int do_login, int defer)
1849 {
1850 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1851 ha->vp_idx == fcport->vp_idx)
1852 qla2x00_schedule_rport_del(ha, fcport, defer);
1853
1854 /*
1855 * We may need to retry the login, so don't change the state of the
1856 * port but do the retries.
1857 */
1858 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1859 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1860
1861 if (!do_login)
1862 return;
1863
1864 if (fcport->login_retry == 0) {
1865 fcport->login_retry = ha->login_retry_count;
1866 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1867
1868 DEBUG(printk("scsi(%ld): Port login retry: "
1869 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1870 "id = 0x%04x retry cnt=%d\n",
1871 ha->host_no,
1872 fcport->port_name[0],
1873 fcport->port_name[1],
1874 fcport->port_name[2],
1875 fcport->port_name[3],
1876 fcport->port_name[4],
1877 fcport->port_name[5],
1878 fcport->port_name[6],
1879 fcport->port_name[7],
1880 fcport->loop_id,
1881 fcport->login_retry));
1882 }
1883 }
1884
1885 /*
1886 * qla2x00_mark_all_devices_lost
1887 * Updates fcport state when device goes offline.
1888 *
1889 * Input:
1890 * ha = adapter block pointer.
1891 * fcport = port structure pointer.
1892 *
1893 * Return:
1894 * None.
1895 *
1896 * Context:
1897 */
1898 void
1899 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1900 {
1901 fc_port_t *fcport;
1902 scsi_qla_host_t *pha = to_qla_parent(ha);
1903
1904 list_for_each_entry(fcport, &pha->fcports, list) {
1905 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1906 continue;
1907 /*
1908 * No point in marking the device as lost, if the device is
1909 * already DEAD.
1910 */
1911 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1912 continue;
1913 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1914 if (defer)
1915 qla2x00_schedule_rport_del(ha, fcport, defer);
1916 else if (ha->vp_idx == fcport->vp_idx)
1917 qla2x00_schedule_rport_del(ha, fcport, defer);
1918 }
1919 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1920 }
1921
1922 if (defer)
1923 qla2xxx_wake_dpc(ha);
1924 }
1925
1926 /*
1927 * qla2x00_mem_alloc
1928 * Allocates adapter memory.
1929 *
1930 * Returns:
1931 * 0 = success.
1932 * !0 = failure.
1933 */
1934 static int
1935 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1936 {
1937 char name[16];
1938
1939 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1940 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1941 GFP_KERNEL);
1942 if (!ha->request_ring)
1943 goto fail;
1944
1945 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1946 (ha->response_q_length + 1) * sizeof(response_t),
1947 &ha->response_dma, GFP_KERNEL);
1948 if (!ha->response_ring)
1949 goto fail_free_request_ring;
1950
1951 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1952 &ha->gid_list_dma, GFP_KERNEL);
1953 if (!ha->gid_list)
1954 goto fail_free_response_ring;
1955
1956 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1957 &ha->init_cb_dma, GFP_KERNEL);
1958 if (!ha->init_cb)
1959 goto fail_free_gid_list;
1960
1961 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1962 ha->host_no);
1963 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1964 DMA_POOL_SIZE, 8, 0);
1965 if (!ha->s_dma_pool)
1966 goto fail_free_init_cb;
1967
1968 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1969 if (!ha->srb_mempool)
1970 goto fail_free_s_dma_pool;
1971
1972 /* Get memory for cached NVRAM */
1973 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1974 if (!ha->nvram)
1975 goto fail_free_srb_mempool;
1976
1977 /* Allocate memory for SNS commands */
1978 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1979 /* Get consistent memory allocated for SNS commands */
1980 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1981 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
1982 if (!ha->sns_cmd)
1983 goto fail_free_nvram;
1984 } else {
1985 /* Get consistent memory allocated for MS IOCB */
1986 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1987 &ha->ms_iocb_dma);
1988 if (!ha->ms_iocb)
1989 goto fail_free_nvram;
1990
1991 /* Get consistent memory allocated for CT SNS commands */
1992 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1993 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
1994 if (!ha->ct_sns)
1995 goto fail_free_ms_iocb;
1996 }
1997
1998 return 0;
1999
2000 fail_free_ms_iocb:
2001 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2002 ha->ms_iocb = NULL;
2003 ha->ms_iocb_dma = 0;
2004 fail_free_nvram:
2005 kfree(ha->nvram);
2006 ha->nvram = NULL;
2007 fail_free_srb_mempool:
2008 mempool_destroy(ha->srb_mempool);
2009 ha->srb_mempool = NULL;
2010 fail_free_s_dma_pool:
2011 dma_pool_destroy(ha->s_dma_pool);
2012 ha->s_dma_pool = NULL;
2013 fail_free_init_cb:
2014 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2015 ha->init_cb_dma);
2016 ha->init_cb = NULL;
2017 ha->init_cb_dma = 0;
2018 fail_free_gid_list:
2019 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2020 ha->gid_list_dma);
2021 ha->gid_list = NULL;
2022 ha->gid_list_dma = 0;
2023 fail_free_response_ring:
2024 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2025 sizeof(response_t), ha->response_ring, ha->response_dma);
2026 ha->response_ring = NULL;
2027 ha->response_dma = 0;
2028 fail_free_request_ring:
2029 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2030 sizeof(request_t), ha->request_ring, ha->request_dma);
2031 ha->request_ring = NULL;
2032 ha->request_dma = 0;
2033 fail:
2034 return -ENOMEM;
2035 }
2036
2037 /*
2038 * qla2x00_mem_free
2039 * Frees all adapter allocated memory.
2040 *
2041 * Input:
2042 * ha = adapter block pointer.
2043 */
2044 static void
2045 qla2x00_mem_free(scsi_qla_host_t *ha)
2046 {
2047 struct list_head *fcpl, *fcptemp;
2048 fc_port_t *fcport;
2049
2050 if (ha->srb_mempool)
2051 mempool_destroy(ha->srb_mempool);
2052
2053 if (ha->fce)
2054 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2055 ha->fce_dma);
2056
2057 if (ha->fw_dump) {
2058 if (ha->eft)
2059 dma_free_coherent(&ha->pdev->dev,
2060 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2061 vfree(ha->fw_dump);
2062 }
2063
2064 if (ha->sns_cmd)
2065 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2066 ha->sns_cmd, ha->sns_cmd_dma);
2067
2068 if (ha->ct_sns)
2069 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2070 ha->ct_sns, ha->ct_sns_dma);
2071
2072 if (ha->sfp_data)
2073 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2074
2075 if (ha->ms_iocb)
2076 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2077
2078 if (ha->s_dma_pool)
2079 dma_pool_destroy(ha->s_dma_pool);
2080
2081 if (ha->init_cb)
2082 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2083 ha->init_cb, ha->init_cb_dma);
2084
2085 if (ha->gid_list)
2086 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2087 ha->gid_list_dma);
2088
2089 if (ha->response_ring)
2090 dma_free_coherent(&ha->pdev->dev,
2091 (ha->response_q_length + 1) * sizeof(response_t),
2092 ha->response_ring, ha->response_dma);
2093
2094 if (ha->request_ring)
2095 dma_free_coherent(&ha->pdev->dev,
2096 (ha->request_q_length + 1) * sizeof(request_t),
2097 ha->request_ring, ha->request_dma);
2098
2099 ha->srb_mempool = NULL;
2100 ha->eft = NULL;
2101 ha->eft_dma = 0;
2102 ha->sns_cmd = NULL;
2103 ha->sns_cmd_dma = 0;
2104 ha->ct_sns = NULL;
2105 ha->ct_sns_dma = 0;
2106 ha->ms_iocb = NULL;
2107 ha->ms_iocb_dma = 0;
2108 ha->init_cb = NULL;
2109 ha->init_cb_dma = 0;
2110
2111 ha->s_dma_pool = NULL;
2112
2113 ha->gid_list = NULL;
2114 ha->gid_list_dma = 0;
2115
2116 ha->response_ring = NULL;
2117 ha->response_dma = 0;
2118 ha->request_ring = NULL;
2119 ha->request_dma = 0;
2120
2121 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2122 fcport = list_entry(fcpl, fc_port_t, list);
2123
2124 /* fc ports */
2125 list_del_init(&fcport->list);
2126 kfree(fcport);
2127 }
2128 INIT_LIST_HEAD(&ha->fcports);
2129
2130 ha->fw_dump = NULL;
2131 ha->fw_dumped = 0;
2132 ha->fw_dump_reading = 0;
2133
2134 vfree(ha->optrom_buffer);
2135 kfree(ha->nvram);
2136 }
2137
2138 static struct qla_work_evt *
2139 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2140 int locked)
2141 {
2142 struct qla_work_evt *e;
2143
2144 e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2145 GFP_KERNEL);
2146 if (!e)
2147 return NULL;
2148
2149 INIT_LIST_HEAD(&e->list);
2150 e->type = type;
2151 e->flags = QLA_EVT_FLAG_FREE;
2152 return e;
2153 }
2154
2155 static int
2156 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2157 {
2158 unsigned long flags;
2159
2160 if (!locked)
2161 spin_lock_irqsave(&ha->hardware_lock, flags);
2162 list_add_tail(&e->list, &ha->work_list);
2163 qla2xxx_wake_dpc(ha);
2164 if (!locked)
2165 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2166 return QLA_SUCCESS;
2167 }
2168
2169 int
2170 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2171 u32 data)
2172 {
2173 struct qla_work_evt *e;
2174
2175 e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2176 if (!e)
2177 return QLA_FUNCTION_FAILED;
2178
2179 e->u.aen.code = code;
2180 e->u.aen.data = data;
2181 return qla2x00_post_work(ha, e, 1);
2182 }
2183
2184 int
2185 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2186 uint16_t d2, uint16_t d3)
2187 {
2188 struct qla_work_evt *e;
2189
2190 e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2191 if (!e)
2192 return QLA_FUNCTION_FAILED;
2193
2194 e->u.hwe.code = code;
2195 e->u.hwe.d1 = d1;
2196 e->u.hwe.d2 = d2;
2197 e->u.hwe.d3 = d3;
2198 return qla2x00_post_work(ha, e, 1);
2199 }
2200
2201 static void
2202 qla2x00_do_work(struct scsi_qla_host *ha)
2203 {
2204 struct qla_work_evt *e;
2205
2206 spin_lock_irq(&ha->hardware_lock);
2207 while (!list_empty(&ha->work_list)) {
2208 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2209 list_del_init(&e->list);
2210 spin_unlock_irq(&ha->hardware_lock);
2211
2212 switch (e->type) {
2213 case QLA_EVT_AEN:
2214 fc_host_post_event(ha->host, fc_get_event_number(),
2215 e->u.aen.code, e->u.aen.data);
2216 break;
2217 case QLA_EVT_HWE_LOG:
2218 qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2219 e->u.hwe.d2, e->u.hwe.d3);
2220 break;
2221 }
2222 if (e->flags & QLA_EVT_FLAG_FREE)
2223 kfree(e);
2224 spin_lock_irq(&ha->hardware_lock);
2225 }
2226 spin_unlock_irq(&ha->hardware_lock);
2227 }
2228
2229 /**************************************************************************
2230 * qla2x00_do_dpc
2231 * This kernel thread is a task that is schedule by the interrupt handler
2232 * to perform the background processing for interrupts.
2233 *
2234 * Notes:
2235 * This task always run in the context of a kernel thread. It
2236 * is kick-off by the driver's detect code and starts up
2237 * up one per adapter. It immediately goes to sleep and waits for
2238 * some fibre event. When either the interrupt handler or
2239 * the timer routine detects a event it will one of the task
2240 * bits then wake us up.
2241 **************************************************************************/
2242 static int
2243 qla2x00_do_dpc(void *data)
2244 {
2245 int rval;
2246 scsi_qla_host_t *ha;
2247 fc_port_t *fcport;
2248 uint8_t status;
2249 uint16_t next_loopid;
2250 struct scsi_qla_host *vha;
2251 int i;
2252
2253
2254 ha = (scsi_qla_host_t *)data;
2255
2256 set_user_nice(current, -20);
2257
2258 while (!kthread_should_stop()) {
2259 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2260
2261 set_current_state(TASK_INTERRUPTIBLE);
2262 schedule();
2263 __set_current_state(TASK_RUNNING);
2264
2265 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2266
2267 /* Initialization not yet finished. Don't do anything yet. */
2268 if (!ha->flags.init_done)
2269 continue;
2270
2271 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2272
2273 ha->dpc_active = 1;
2274
2275 if (ha->flags.mbox_busy) {
2276 ha->dpc_active = 0;
2277 continue;
2278 }
2279
2280 qla2x00_do_work(ha);
2281
2282 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2283
2284 DEBUG(printk("scsi(%ld): dpc: sched "
2285 "qla2x00_abort_isp ha = %p\n",
2286 ha->host_no, ha));
2287 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2288 &ha->dpc_flags))) {
2289
2290 if (qla2x00_abort_isp(ha)) {
2291 /* failed. retry later */
2292 set_bit(ISP_ABORT_NEEDED,
2293 &ha->dpc_flags);
2294 }
2295 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2296 }
2297
2298 for_each_mapped_vp_idx(ha, i) {
2299 list_for_each_entry(vha, &ha->vp_list,
2300 vp_list) {
2301 if (i == vha->vp_idx) {
2302 set_bit(ISP_ABORT_NEEDED,
2303 &vha->dpc_flags);
2304 break;
2305 }
2306 }
2307 }
2308
2309 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2310 ha->host_no));
2311 }
2312
2313 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2314 qla2x00_update_fcports(ha);
2315
2316 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2317 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2318
2319 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2320 ha->host_no));
2321
2322 qla2x00_rst_aen(ha);
2323 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2324 }
2325
2326 /* Retry each device up to login retry count */
2327 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2328 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2329 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2330
2331 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2332 ha->host_no));
2333
2334 next_loopid = 0;
2335 list_for_each_entry(fcport, &ha->fcports, list) {
2336 /*
2337 * If the port is not ONLINE then try to login
2338 * to it if we haven't run out of retries.
2339 */
2340 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2341 fcport->login_retry) {
2342
2343 if (fcport->flags & FCF_FABRIC_DEVICE) {
2344 if (fcport->flags &
2345 FCF_TAPE_PRESENT)
2346 ha->isp_ops->fabric_logout(
2347 ha, fcport->loop_id,
2348 fcport->d_id.b.domain,
2349 fcport->d_id.b.area,
2350 fcport->d_id.b.al_pa);
2351 status = qla2x00_fabric_login(
2352 ha, fcport, &next_loopid);
2353 } else
2354 status =
2355 qla2x00_local_device_login(
2356 ha, fcport);
2357
2358 fcport->login_retry--;
2359 if (status == QLA_SUCCESS) {
2360 fcport->old_loop_id = fcport->loop_id;
2361
2362 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2363 ha->host_no, fcport->loop_id));
2364
2365 qla2x00_update_fcport(ha,
2366 fcport);
2367 } else if (status == 1) {
2368 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2369 /* retry the login again */
2370 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2371 ha->host_no,
2372 fcport->login_retry, fcport->loop_id));
2373 } else {
2374 fcport->login_retry = 0;
2375 }
2376 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2377 fcport->loop_id = FC_NO_LOOP_ID;
2378 }
2379 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2380 break;
2381 }
2382 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2383 ha->host_no));
2384 }
2385
2386 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2387
2388 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2389 ha->host_no));
2390
2391 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2392 &ha->dpc_flags))) {
2393
2394 rval = qla2x00_loop_resync(ha);
2395
2396 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2397 }
2398
2399 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2400 ha->host_no));
2401 }
2402
2403 if (!ha->interrupts_on)
2404 ha->isp_ops->enable_intrs(ha);
2405
2406 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2407 ha->isp_ops->beacon_blink(ha);
2408
2409 qla2x00_do_dpc_all_vps(ha);
2410
2411 ha->dpc_active = 0;
2412 } /* End of while(1) */
2413
2414 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2415
2416 /*
2417 * Make sure that nobody tries to wake us up again.
2418 */
2419 ha->dpc_active = 0;
2420
2421 return 0;
2422 }
2423
2424 void
2425 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2426 {
2427 if (ha->dpc_thread)
2428 wake_up_process(ha->dpc_thread);
2429 }
2430
2431 /*
2432 * qla2x00_rst_aen
2433 * Processes asynchronous reset.
2434 *
2435 * Input:
2436 * ha = adapter block pointer.
2437 */
2438 static void
2439 qla2x00_rst_aen(scsi_qla_host_t *ha)
2440 {
2441 if (ha->flags.online && !ha->flags.reset_active &&
2442 !atomic_read(&ha->loop_down_timer) &&
2443 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2444 do {
2445 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2446
2447 /*
2448 * Issue marker command only when we are going to start
2449 * the I/O.
2450 */
2451 ha->marker_needed = 1;
2452 } while (!atomic_read(&ha->loop_down_timer) &&
2453 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2454 }
2455 }
2456
2457 static void
2458 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2459 {
2460 struct scsi_cmnd *cmd = sp->cmd;
2461
2462 if (sp->flags & SRB_DMA_VALID) {
2463 scsi_dma_unmap(cmd);
2464 sp->flags &= ~SRB_DMA_VALID;
2465 }
2466 CMD_SP(cmd) = NULL;
2467 }
2468
2469 void
2470 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2471 {
2472 struct scsi_cmnd *cmd = sp->cmd;
2473
2474 qla2x00_sp_free_dma(ha, sp);
2475
2476 mempool_free(sp, ha->srb_mempool);
2477
2478 cmd->scsi_done(cmd);
2479 }
2480
2481 /**************************************************************************
2482 * qla2x00_timer
2483 *
2484 * Description:
2485 * One second timer
2486 *
2487 * Context: Interrupt
2488 ***************************************************************************/
2489 void
2490 qla2x00_timer(scsi_qla_host_t *ha)
2491 {
2492 unsigned long cpu_flags = 0;
2493 fc_port_t *fcport;
2494 int start_dpc = 0;
2495 int index;
2496 srb_t *sp;
2497 int t;
2498 scsi_qla_host_t *pha = to_qla_parent(ha);
2499
2500 /*
2501 * Ports - Port down timer.
2502 *
2503 * Whenever, a port is in the LOST state we start decrementing its port
2504 * down timer every second until it reaches zero. Once it reaches zero
2505 * the port it marked DEAD.
2506 */
2507 t = 0;
2508 list_for_each_entry(fcport, &ha->fcports, list) {
2509 if (fcport->port_type != FCT_TARGET)
2510 continue;
2511
2512 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2513
2514 if (atomic_read(&fcport->port_down_timer) == 0)
2515 continue;
2516
2517 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2518 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2519
2520 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2521 "%d remaining\n",
2522 ha->host_no,
2523 t, atomic_read(&fcport->port_down_timer)));
2524 }
2525 t++;
2526 } /* End of for fcport */
2527
2528
2529 /* Loop down handler. */
2530 if (atomic_read(&ha->loop_down_timer) > 0 &&
2531 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2532
2533 if (atomic_read(&ha->loop_down_timer) ==
2534 ha->loop_down_abort_time) {
2535
2536 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2537 "queues before time expire\n",
2538 ha->host_no));
2539
2540 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2541 atomic_set(&ha->loop_state, LOOP_DEAD);
2542
2543 /* Schedule an ISP abort to return any tape commands. */
2544 /* NPIV - scan physical port only */
2545 if (!ha->parent) {
2546 spin_lock_irqsave(&ha->hardware_lock,
2547 cpu_flags);
2548 for (index = 1;
2549 index < MAX_OUTSTANDING_COMMANDS;
2550 index++) {
2551 fc_port_t *sfcp;
2552
2553 sp = ha->outstanding_cmds[index];
2554 if (!sp)
2555 continue;
2556 sfcp = sp->fcport;
2557 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2558 continue;
2559
2560 set_bit(ISP_ABORT_NEEDED,
2561 &ha->dpc_flags);
2562 break;
2563 }
2564 spin_unlock_irqrestore(&ha->hardware_lock,
2565 cpu_flags);
2566 }
2567 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2568 start_dpc++;
2569 }
2570
2571 /* if the loop has been down for 4 minutes, reinit adapter */
2572 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2573 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2574 "restarting queues.\n",
2575 ha->host_no));
2576
2577 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2578 start_dpc++;
2579
2580 if (!(ha->device_flags & DFLG_NO_CABLE) &&
2581 !ha->parent) {
2582 DEBUG(printk("scsi(%ld): Loop down - "
2583 "aborting ISP.\n",
2584 ha->host_no));
2585 qla_printk(KERN_WARNING, ha,
2586 "Loop down - aborting ISP.\n");
2587
2588 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2589 }
2590 }
2591 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2592 ha->host_no,
2593 atomic_read(&ha->loop_down_timer)));
2594 }
2595
2596 /* Check if beacon LED needs to be blinked */
2597 if (ha->beacon_blink_led == 1) {
2598 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2599 start_dpc++;
2600 }
2601
2602 /* Process any deferred work. */
2603 if (!list_empty(&ha->work_list))
2604 start_dpc++;
2605
2606 /* Schedule the DPC routine if needed */
2607 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2608 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2609 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2610 start_dpc ||
2611 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2612 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2613 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2614 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2615 qla2xxx_wake_dpc(pha);
2616
2617 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2618 }
2619
2620 /* Firmware interface routines. */
2621
2622 #define FW_BLOBS 6
2623 #define FW_ISP21XX 0
2624 #define FW_ISP22XX 1
2625 #define FW_ISP2300 2
2626 #define FW_ISP2322 3
2627 #define FW_ISP24XX 4
2628 #define FW_ISP25XX 5
2629
2630 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2631 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2632 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2633 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2634 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2635 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2636
2637 static DECLARE_MUTEX(qla_fw_lock);
2638
2639 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2640 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2641 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2642 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2643 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2644 { .name = FW_FILE_ISP24XX, },
2645 { .name = FW_FILE_ISP25XX, },
2646 };
2647
2648 struct fw_blob *
2649 qla2x00_request_firmware(scsi_qla_host_t *ha)
2650 {
2651 struct fw_blob *blob;
2652
2653 blob = NULL;
2654 if (IS_QLA2100(ha)) {
2655 blob = &qla_fw_blobs[FW_ISP21XX];
2656 } else if (IS_QLA2200(ha)) {
2657 blob = &qla_fw_blobs[FW_ISP22XX];
2658 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2659 blob = &qla_fw_blobs[FW_ISP2300];
2660 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2661 blob = &qla_fw_blobs[FW_ISP2322];
2662 } else if (IS_QLA24XX_TYPE(ha)) {
2663 blob = &qla_fw_blobs[FW_ISP24XX];
2664 } else if (IS_QLA25XX(ha)) {
2665 blob = &qla_fw_blobs[FW_ISP25XX];
2666 }
2667
2668 down(&qla_fw_lock);
2669 if (blob->fw)
2670 goto out;
2671
2672 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2673 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2674 "(%s).\n", ha->host_no, blob->name));
2675 blob->fw = NULL;
2676 blob = NULL;
2677 goto out;
2678 }
2679
2680 out:
2681 up(&qla_fw_lock);
2682 return blob;
2683 }
2684
2685 static void
2686 qla2x00_release_firmware(void)
2687 {
2688 int idx;
2689
2690 down(&qla_fw_lock);
2691 for (idx = 0; idx < FW_BLOBS; idx++)
2692 if (qla_fw_blobs[idx].fw)
2693 release_firmware(qla_fw_blobs[idx].fw);
2694 up(&qla_fw_lock);
2695 }
2696
2697 static pci_ers_result_t
2698 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2699 {
2700 switch (state) {
2701 case pci_channel_io_normal:
2702 return PCI_ERS_RESULT_CAN_RECOVER;
2703 case pci_channel_io_frozen:
2704 pci_disable_device(pdev);
2705 return PCI_ERS_RESULT_NEED_RESET;
2706 case pci_channel_io_perm_failure:
2707 qla2x00_remove_one(pdev);
2708 return PCI_ERS_RESULT_DISCONNECT;
2709 }
2710 return PCI_ERS_RESULT_NEED_RESET;
2711 }
2712
2713 static pci_ers_result_t
2714 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2715 {
2716 int risc_paused = 0;
2717 uint32_t stat;
2718 unsigned long flags;
2719 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2720 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2721 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2722
2723 spin_lock_irqsave(&ha->hardware_lock, flags);
2724 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2725 stat = RD_REG_DWORD(&reg->hccr);
2726 if (stat & HCCR_RISC_PAUSE)
2727 risc_paused = 1;
2728 } else if (IS_QLA23XX(ha)) {
2729 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2730 if (stat & HSR_RISC_PAUSED)
2731 risc_paused = 1;
2732 } else if (IS_FWI2_CAPABLE(ha)) {
2733 stat = RD_REG_DWORD(&reg24->host_status);
2734 if (stat & HSRX_RISC_PAUSED)
2735 risc_paused = 1;
2736 }
2737 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2738
2739 if (risc_paused) {
2740 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2741 "Dumping firmware!\n");
2742 ha->isp_ops->fw_dump(ha, 0);
2743
2744 return PCI_ERS_RESULT_NEED_RESET;
2745 } else
2746 return PCI_ERS_RESULT_RECOVERED;
2747 }
2748
2749 static pci_ers_result_t
2750 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2751 {
2752 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2753 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2754 int rc;
2755
2756 if (ha->mem_only)
2757 rc = pci_enable_device_mem(pdev);
2758 else
2759 rc = pci_enable_device(pdev);
2760
2761 if (rc) {
2762 qla_printk(KERN_WARNING, ha,
2763 "Can't re-enable PCI device after reset.\n");
2764
2765 return ret;
2766 }
2767 pci_set_master(pdev);
2768
2769 if (ha->isp_ops->pci_config(ha))
2770 return ret;
2771
2772 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2773 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2774 ret = PCI_ERS_RESULT_RECOVERED;
2775 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2776
2777 return ret;
2778 }
2779
2780 static void
2781 qla2xxx_pci_resume(struct pci_dev *pdev)
2782 {
2783 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2784 int ret;
2785
2786 ret = qla2x00_wait_for_hba_online(ha);
2787 if (ret != QLA_SUCCESS) {
2788 qla_printk(KERN_ERR, ha,
2789 "the device failed to resume I/O "
2790 "from slot/link_reset");
2791 }
2792 pci_cleanup_aer_uncorrect_error_status(pdev);
2793 }
2794
2795 static struct pci_error_handlers qla2xxx_err_handler = {
2796 .error_detected = qla2xxx_pci_error_detected,
2797 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2798 .slot_reset = qla2xxx_pci_slot_reset,
2799 .resume = qla2xxx_pci_resume,
2800 };
2801
2802 static struct pci_device_id qla2xxx_pci_tbl[] = {
2803 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2804 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2805 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2806 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2807 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2808 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2809 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2810 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2811 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2812 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2813 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2814 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2815 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2816 { 0 },
2817 };
2818 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2819
2820 static struct pci_driver qla2xxx_pci_driver = {
2821 .name = QLA2XXX_DRIVER_NAME,
2822 .driver = {
2823 .owner = THIS_MODULE,
2824 },
2825 .id_table = qla2xxx_pci_tbl,
2826 .probe = qla2x00_probe_one,
2827 .remove = qla2x00_remove_one,
2828 .err_handler = &qla2xxx_err_handler,
2829 };
2830
2831 /**
2832 * qla2x00_module_init - Module initialization.
2833 **/
2834 static int __init
2835 qla2x00_module_init(void)
2836 {
2837 int ret = 0;
2838
2839 /* Allocate cache for SRBs. */
2840 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2841 SLAB_HWCACHE_ALIGN, NULL);
2842 if (srb_cachep == NULL) {
2843 printk(KERN_ERR
2844 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2845 return -ENOMEM;
2846 }
2847
2848 /* Derive version string. */
2849 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2850 if (ql2xextended_error_logging)
2851 strcat(qla2x00_version_str, "-debug");
2852
2853 qla2xxx_transport_template =
2854 fc_attach_transport(&qla2xxx_transport_functions);
2855 if (!qla2xxx_transport_template) {
2856 kmem_cache_destroy(srb_cachep);
2857 return -ENODEV;
2858 }
2859 qla2xxx_transport_vport_template =
2860 fc_attach_transport(&qla2xxx_transport_vport_functions);
2861 if (!qla2xxx_transport_vport_template) {
2862 kmem_cache_destroy(srb_cachep);
2863 fc_release_transport(qla2xxx_transport_template);
2864 return -ENODEV;
2865 }
2866
2867 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2868 ret = pci_register_driver(&qla2xxx_pci_driver);
2869 if (ret) {
2870 kmem_cache_destroy(srb_cachep);
2871 fc_release_transport(qla2xxx_transport_template);
2872 fc_release_transport(qla2xxx_transport_vport_template);
2873 }
2874 return ret;
2875 }
2876
2877 /**
2878 * qla2x00_module_exit - Module cleanup.
2879 **/
2880 static void __exit
2881 qla2x00_module_exit(void)
2882 {
2883 pci_unregister_driver(&qla2xxx_pci_driver);
2884 qla2x00_release_firmware();
2885 kmem_cache_destroy(srb_cachep);
2886 fc_release_transport(qla2xxx_transport_template);
2887 fc_release_transport(qla2xxx_transport_vport_template);
2888 }
2889
2890 module_init(qla2x00_module_init);
2891 module_exit(qla2x00_module_exit);
2892
2893 MODULE_AUTHOR("QLogic Corporation");
2894 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2895 MODULE_LICENSE("GPL");
2896 MODULE_VERSION(QLA2XXX_VERSION);
2897 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2898 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2899 MODULE_FIRMWARE(FW_FILE_ISP2300);
2900 MODULE_FIRMWARE(FW_FILE_ISP2322);
2901 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2902 MODULE_FIRMWARE(FW_FILE_ISP25XX);
kernel source for telekom puls (alcatel/mediatek)