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[SCSI] qla2xxx: Cruft cleanup of functions and structures.
[linux-2.6/btrfs-unstable.git] / drivers / scsi / qla2xxx / qla_os.c
blobc0f6f66c358fd81547400a36b45e003d9f2aa5d5
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;
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_bus_reset(struct scsi_cmnd *);
104 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
105
106 static int qla2x00_change_queue_depth(struct scsi_device *, int);
107 static int qla2x00_change_queue_type(struct scsi_device *, int);
108
109 static struct scsi_host_template qla2x00_driver_template = {
110 .module = THIS_MODULE,
111 .name = QLA2XXX_DRIVER_NAME,
112 .queuecommand = qla2x00_queuecommand,
113
114 .eh_abort_handler = qla2xxx_eh_abort,
115 .eh_device_reset_handler = qla2xxx_eh_device_reset,
116 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
117 .eh_host_reset_handler = qla2xxx_eh_host_reset,
118
119 .slave_configure = qla2xxx_slave_configure,
120
121 .slave_alloc = qla2xxx_slave_alloc,
122 .slave_destroy = qla2xxx_slave_destroy,
123 .scan_finished = qla2xxx_scan_finished,
124 .scan_start = qla2xxx_scan_start,
125 .change_queue_depth = qla2x00_change_queue_depth,
126 .change_queue_type = qla2x00_change_queue_type,
127 .this_id = -1,
128 .cmd_per_lun = 3,
129 .use_clustering = ENABLE_CLUSTERING,
130 .sg_tablesize = SG_ALL,
131
132 /*
133 * The RISC allows for each command to transfer (2^32-1) bytes of data,
134 * which equates to 0x800000 sectors.
135 */
136 .max_sectors = 0xFFFF,
137 .shost_attrs = qla2x00_host_attrs,
138 };
139
140 struct scsi_host_template qla24xx_driver_template = {
141 .module = THIS_MODULE,
142 .name = QLA2XXX_DRIVER_NAME,
143 .queuecommand = qla24xx_queuecommand,
144
145 .eh_abort_handler = qla2xxx_eh_abort,
146 .eh_device_reset_handler = qla2xxx_eh_device_reset,
147 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
148 .eh_host_reset_handler = qla2xxx_eh_host_reset,
149
150 .slave_configure = qla2xxx_slave_configure,
151
152 .slave_alloc = qla2xxx_slave_alloc,
153 .slave_destroy = qla2xxx_slave_destroy,
154 .scan_finished = qla2xxx_scan_finished,
155 .scan_start = qla2xxx_scan_start,
156 .change_queue_depth = qla2x00_change_queue_depth,
157 .change_queue_type = qla2x00_change_queue_type,
158 .this_id = -1,
159 .cmd_per_lun = 3,
160 .use_clustering = ENABLE_CLUSTERING,
161 .sg_tablesize = SG_ALL,
162
163 .max_sectors = 0xFFFF,
164 .shost_attrs = qla2x00_host_attrs,
165 };
166
167 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
168 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
169
170 /* TODO Convert to inlines
171 *
172 * Timer routines
173 */
174
175 __inline__ void
176 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
177 {
178 init_timer(&ha->timer);
179 ha->timer.expires = jiffies + interval * HZ;
180 ha->timer.data = (unsigned long)ha;
181 ha->timer.function = (void (*)(unsigned long))func;
182 add_timer(&ha->timer);
183 ha->timer_active = 1;
184 }
185
186 static inline void
187 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
188 {
189 mod_timer(&ha->timer, jiffies + interval * HZ);
190 }
191
192 static __inline__ void
193 qla2x00_stop_timer(scsi_qla_host_t *ha)
194 {
195 del_timer_sync(&ha->timer);
196 ha->timer_active = 0;
197 }
198
199 static int qla2x00_do_dpc(void *data);
200
201 static void qla2x00_rst_aen(scsi_qla_host_t *);
202
203 static int qla2x00_mem_alloc(scsi_qla_host_t *);
204 static void qla2x00_mem_free(scsi_qla_host_t *ha);
205 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
206
207 /* -------------------------------------------------------------------------- */
208
209 static char *
210 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
211 {
212 static char *pci_bus_modes[] = {
213 "33", "66", "100", "133",
214 };
215 uint16_t pci_bus;
216
217 strcpy(str, "PCI");
218 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
219 if (pci_bus) {
220 strcat(str, "-X (");
221 strcat(str, pci_bus_modes[pci_bus]);
222 } else {
223 pci_bus = (ha->pci_attr & BIT_8) >> 8;
224 strcat(str, " (");
225 strcat(str, pci_bus_modes[pci_bus]);
226 }
227 strcat(str, " MHz)");
228
229 return (str);
230 }
231
232 static char *
233 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
234 {
235 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
236 uint32_t pci_bus;
237 int pcie_reg;
238
239 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
240 if (pcie_reg) {
241 char lwstr[6];
242 uint16_t pcie_lstat, lspeed, lwidth;
243
244 pcie_reg += 0x12;
245 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
246 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
247 lwidth = (pcie_lstat &
248 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
249
250 strcpy(str, "PCIe (");
251 if (lspeed == 1)
252 strcat(str, "2.5Gb/s ");
253 else if (lspeed == 2)
254 strcat(str, "5.0Gb/s ");
255 else
256 strcat(str, "<unknown> ");
257 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
258 strcat(str, lwstr);
259
260 return str;
261 }
262
263 strcpy(str, "PCI");
264 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
265 if (pci_bus == 0 || pci_bus == 8) {
266 strcat(str, " (");
267 strcat(str, pci_bus_modes[pci_bus >> 3]);
268 } else {
269 strcat(str, "-X ");
270 if (pci_bus & BIT_2)
271 strcat(str, "Mode 2");
272 else
273 strcat(str, "Mode 1");
274 strcat(str, " (");
275 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
276 }
277 strcat(str, " MHz)");
278
279 return str;
280 }
281
282 static char *
283 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
284 {
285 char un_str[10];
286
287 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
288 ha->fw_minor_version,
289 ha->fw_subminor_version);
290
291 if (ha->fw_attributes & BIT_9) {
292 strcat(str, "FLX");
293 return (str);
294 }
295
296 switch (ha->fw_attributes & 0xFF) {
297 case 0x7:
298 strcat(str, "EF");
299 break;
300 case 0x17:
301 strcat(str, "TP");
302 break;
303 case 0x37:
304 strcat(str, "IP");
305 break;
306 case 0x77:
307 strcat(str, "VI");
308 break;
309 default:
310 sprintf(un_str, "(%x)", ha->fw_attributes);
311 strcat(str, un_str);
312 break;
313 }
314 if (ha->fw_attributes & 0x100)
315 strcat(str, "X");
316
317 return (str);
318 }
319
320 static char *
321 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
322 {
323 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
324 ha->fw_minor_version,
325 ha->fw_subminor_version);
326
327 if (ha->fw_attributes & BIT_0)
328 strcat(str, "[Class 2] ");
329 if (ha->fw_attributes & BIT_1)
330 strcat(str, "[IP] ");
331 if (ha->fw_attributes & BIT_2)
332 strcat(str, "[Multi-ID] ");
333 if (ha->fw_attributes & BIT_3)
334 strcat(str, "[SB-2] ");
335 if (ha->fw_attributes & BIT_4)
336 strcat(str, "[T10 CRC] ");
337 if (ha->fw_attributes & BIT_5)
338 strcat(str, "[VI] ");
339 if (ha->fw_attributes & BIT_13)
340 strcat(str, "[Experimental]");
341 return str;
342 }
343
344 static inline srb_t *
345 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
346 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
347 {
348 srb_t *sp;
349
350 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
351 if (!sp)
352 return sp;
353
354 sp->ha = ha;
355 sp->fcport = fcport;
356 sp->cmd = cmd;
357 sp->flags = 0;
358 CMD_SP(cmd) = (void *)sp;
359 cmd->scsi_done = done;
360
361 return sp;
362 }
363
364 static int
365 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
366 {
367 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
368 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
369 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
370 srb_t *sp;
371 int rval;
372
373 if (unlikely(pci_channel_offline(ha->pdev))) {
374 cmd->result = DID_REQUEUE << 16;
375 goto qc_fail_command;
376 }
377
378 rval = fc_remote_port_chkready(rport);
379 if (rval) {
380 cmd->result = rval;
381 goto qc_fail_command;
382 }
383
384 /* Close window on fcport/rport state-transitioning. */
385 if (!*(fc_port_t **)rport->dd_data) {
386 cmd->result = DID_IMM_RETRY << 16;
387 goto qc_fail_command;
388 }
389
390 if (atomic_read(&fcport->state) != FCS_ONLINE) {
391 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
392 atomic_read(&ha->loop_state) == LOOP_DEAD) {
393 cmd->result = DID_NO_CONNECT << 16;
394 goto qc_fail_command;
395 }
396 goto qc_host_busy;
397 }
398
399 spin_unlock_irq(ha->host->host_lock);
400
401 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
402 if (!sp)
403 goto qc_host_busy_lock;
404
405 rval = qla2x00_start_scsi(sp);
406 if (rval != QLA_SUCCESS)
407 goto qc_host_busy_free_sp;
408
409 spin_lock_irq(ha->host->host_lock);
410
411 return 0;
412
413 qc_host_busy_free_sp:
414 qla2x00_sp_free_dma(ha, sp);
415 mempool_free(sp, ha->srb_mempool);
416
417 qc_host_busy_lock:
418 spin_lock_irq(ha->host->host_lock);
419
420 qc_host_busy:
421 return SCSI_MLQUEUE_HOST_BUSY;
422
423 qc_fail_command:
424 done(cmd);
425
426 return 0;
427 }
428
429
430 static int
431 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
432 {
433 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
434 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
435 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
436 srb_t *sp;
437 int rval;
438 scsi_qla_host_t *pha = to_qla_parent(ha);
439
440 if (unlikely(pci_channel_offline(ha->pdev))) {
441 cmd->result = DID_REQUEUE << 16;
442 goto qc24_fail_command;
443 }
444
445 rval = fc_remote_port_chkready(rport);
446 if (rval) {
447 cmd->result = rval;
448 goto qc24_fail_command;
449 }
450
451 /* Close window on fcport/rport state-transitioning. */
452 if (!*(fc_port_t **)rport->dd_data) {
453 cmd->result = DID_IMM_RETRY << 16;
454 goto qc24_fail_command;
455 }
456
457 if (atomic_read(&fcport->state) != FCS_ONLINE) {
458 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
459 atomic_read(&pha->loop_state) == LOOP_DEAD) {
460 cmd->result = DID_NO_CONNECT << 16;
461 goto qc24_fail_command;
462 }
463 goto qc24_host_busy;
464 }
465
466 spin_unlock_irq(ha->host->host_lock);
467
468 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
469 if (!sp)
470 goto qc24_host_busy_lock;
471
472 rval = qla24xx_start_scsi(sp);
473 if (rval != QLA_SUCCESS)
474 goto qc24_host_busy_free_sp;
475
476 spin_lock_irq(ha->host->host_lock);
477
478 return 0;
479
480 qc24_host_busy_free_sp:
481 qla2x00_sp_free_dma(pha, sp);
482 mempool_free(sp, pha->srb_mempool);
483
484 qc24_host_busy_lock:
485 spin_lock_irq(ha->host->host_lock);
486
487 qc24_host_busy:
488 return SCSI_MLQUEUE_HOST_BUSY;
489
490 qc24_fail_command:
491 done(cmd);
492
493 return 0;
494 }
495
496
497 /*
498 * qla2x00_eh_wait_on_command
499 * Waits for the command to be returned by the Firmware for some
500 * max time.
501 *
502 * Input:
503 * ha = actual ha whose done queue will contain the command
504 * returned by firmware.
505 * cmd = Scsi Command to wait on.
506 * flag = Abort/Reset(Bus or Device Reset)
507 *
508 * Return:
509 * Not Found : 0
510 * Found : 1
511 */
512 static int
513 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
514 {
515 #define ABORT_POLLING_PERIOD 1000
516 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
517 unsigned long wait_iter = ABORT_WAIT_ITER;
518 int ret = QLA_SUCCESS;
519
520 while (CMD_SP(cmd)) {
521 msleep(ABORT_POLLING_PERIOD);
522
523 if (--wait_iter)
524 break;
525 }
526 if (CMD_SP(cmd))
527 ret = QLA_FUNCTION_FAILED;
528
529 return ret;
530 }
531
532 /*
533 * qla2x00_wait_for_hba_online
534 * Wait till the HBA is online after going through
535 * <= MAX_RETRIES_OF_ISP_ABORT or
536 * finally HBA is disabled ie marked offline
537 *
538 * Input:
539 * ha - pointer to host adapter structure
540 *
541 * Note:
542 * Does context switching-Release SPIN_LOCK
543 * (if any) before calling this routine.
544 *
545 * Return:
546 * Success (Adapter is online) : 0
547 * Failed (Adapter is offline/disabled) : 1
548 */
549 int
550 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
551 {
552 int return_status;
553 unsigned long wait_online;
554 scsi_qla_host_t *pha = to_qla_parent(ha);
555
556 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
557 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
558 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
559 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
560 pha->dpc_active) && time_before(jiffies, wait_online)) {
561
562 msleep(1000);
563 }
564 if (pha->flags.online)
565 return_status = QLA_SUCCESS;
566 else
567 return_status = QLA_FUNCTION_FAILED;
568
569 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
570
571 return (return_status);
572 }
573
574 /*
575 * qla2x00_wait_for_loop_ready
576 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
577 * to be in LOOP_READY state.
578 * Input:
579 * ha - pointer to host adapter structure
580 *
581 * Note:
582 * Does context switching-Release SPIN_LOCK
583 * (if any) before calling this routine.
584 *
585 *
586 * Return:
587 * Success (LOOP_READY) : 0
588 * Failed (LOOP_NOT_READY) : 1
589 */
590 static inline int
591 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
592 {
593 int return_status = QLA_SUCCESS;
594 unsigned long loop_timeout ;
595 scsi_qla_host_t *pha = to_qla_parent(ha);
596
597 /* wait for 5 min at the max for loop to be ready */
598 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
599
600 while ((!atomic_read(&pha->loop_down_timer) &&
601 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
602 atomic_read(&pha->loop_state) != LOOP_READY) {
603 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
604 return_status = QLA_FUNCTION_FAILED;
605 break;
606 }
607 msleep(1000);
608 if (time_after_eq(jiffies, loop_timeout)) {
609 return_status = QLA_FUNCTION_FAILED;
610 break;
611 }
612 }
613 return (return_status);
614 }
615
616 static void
617 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
618 {
619 struct Scsi_Host *shost = cmnd->device->host;
620 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
621 unsigned long flags;
622
623 spin_lock_irqsave(shost->host_lock, flags);
624 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
625 spin_unlock_irqrestore(shost->host_lock, flags);
626 msleep(1000);
627 spin_lock_irqsave(shost->host_lock, flags);
628 }
629 spin_unlock_irqrestore(shost->host_lock, flags);
630 return;
631 }
632
633 /**************************************************************************
634 * qla2xxx_eh_abort
635 *
636 * Description:
637 * The abort function will abort the specified command.
638 *
639 * Input:
640 * cmd = Linux SCSI command packet to be aborted.
641 *
642 * Returns:
643 * Either SUCCESS or FAILED.
644 *
645 * Note:
646 * Only return FAILED if command not returned by firmware.
647 **************************************************************************/
648 static int
649 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
650 {
651 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
652 srb_t *sp;
653 int ret, i;
654 unsigned int id, lun;
655 unsigned long serial;
656 unsigned long flags;
657 int wait = 0;
658 scsi_qla_host_t *pha = to_qla_parent(ha);
659
660 qla2x00_block_error_handler(cmd);
661
662 if (!CMD_SP(cmd))
663 return SUCCESS;
664
665 ret = SUCCESS;
666
667 id = cmd->device->id;
668 lun = cmd->device->lun;
669 serial = cmd->serial_number;
670
671 /* Check active list for command command. */
672 spin_lock_irqsave(&pha->hardware_lock, flags);
673 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
674 sp = pha->outstanding_cmds[i];
675
676 if (sp == NULL)
677 continue;
678
679 if (sp->cmd != cmd)
680 continue;
681
682 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
683 __func__, ha->host_no, sp, serial));
684
685 spin_unlock_irqrestore(&pha->hardware_lock, flags);
686 if (ha->isp_ops->abort_command(ha, sp)) {
687 DEBUG2(printk("%s(%ld): abort_command "
688 "mbx failed.\n", __func__, ha->host_no));
689 } else {
690 DEBUG3(printk("%s(%ld): abort_command "
691 "mbx success.\n", __func__, ha->host_no));
692 wait = 1;
693 }
694 spin_lock_irqsave(&pha->hardware_lock, flags);
695
696 break;
697 }
698 spin_unlock_irqrestore(&pha->hardware_lock, flags);
699
700 /* Wait for the command to be returned. */
701 if (wait) {
702 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
703 qla_printk(KERN_ERR, ha,
704 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
705 "%x.\n", ha->host_no, id, lun, serial, ret);
706 ret = FAILED;
707 }
708 }
709
710 qla_printk(KERN_INFO, ha,
711 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
712 ha->host_no, id, lun, wait, serial, ret);
713
714 return ret;
715 }
716
717 /**************************************************************************
718 * qla2x00_eh_wait_for_pending_target_commands
719 *
720 * Description:
721 * Waits for all the commands to come back from the specified target.
722 *
723 * Input:
724 * ha - pointer to scsi_qla_host structure.
725 * t - target
726 * Returns:
727 * Either SUCCESS or FAILED.
728 *
729 * Note:
730 **************************************************************************/
731 static int
732 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
733 {
734 int cnt;
735 int status;
736 srb_t *sp;
737 struct scsi_cmnd *cmd;
738 unsigned long flags;
739 scsi_qla_host_t *pha = to_qla_parent(ha);
740
741 status = 0;
742
743 /*
744 * Waiting for all commands for the designated target in the active
745 * array
746 */
747 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
748 spin_lock_irqsave(&pha->hardware_lock, flags);
749 sp = pha->outstanding_cmds[cnt];
750 if (sp) {
751 cmd = sp->cmd;
752 spin_unlock_irqrestore(&pha->hardware_lock, flags);
753 if (cmd->device->id == t &&
754 ha->vp_idx == sp->ha->vp_idx) {
755 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
756 status = 1;
757 break;
758 }
759 }
760 } else {
761 spin_unlock_irqrestore(&pha->hardware_lock, flags);
762 }
763 }
764 return (status);
765 }
766
767
768 /**************************************************************************
769 * qla2xxx_eh_device_reset
770 *
771 * Description:
772 * The device reset function will reset the target and abort any
773 * executing commands.
774 *
775 * NOTE: The use of SP is undefined within this context. Do *NOT*
776 * attempt to use this value, even if you determine it is
777 * non-null.
778 *
779 * Input:
780 * cmd = Linux SCSI command packet of the command that cause the
781 * bus device reset.
782 *
783 * Returns:
784 * SUCCESS/FAILURE (defined as macro in scsi.h).
785 *
786 **************************************************************************/
787 static int
788 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
789 {
790 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
791 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
792 int ret = FAILED;
793 unsigned int id, lun;
794 unsigned long serial;
795
796 qla2x00_block_error_handler(cmd);
797
798 id = cmd->device->id;
799 lun = cmd->device->lun;
800 serial = cmd->serial_number;
801
802 if (!fcport)
803 return ret;
804
805 qla_printk(KERN_INFO, ha,
806 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
807
808 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
809 goto eh_dev_reset_done;
810
811 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
812 if (ha->isp_ops->abort_target(fcport) == 0)
813 ret = SUCCESS;
814 } else {
815 DEBUG2(printk(KERN_INFO
816 "%s failed: loop not ready\n",__func__));
817 }
818
819 if (ret == FAILED) {
820 DEBUG3(printk("%s(%ld): device reset failed\n",
821 __func__, ha->host_no));
822 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
823 __func__);
824
825 goto eh_dev_reset_done;
826 }
827
828 /* Flush outstanding commands. */
829 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
830 ret = FAILED;
831 if (ret == FAILED) {
832 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
833 __func__, ha->host_no));
834 qla_printk(KERN_INFO, ha,
835 "%s: failed while waiting for commands\n", __func__);
836 } else
837 qla_printk(KERN_INFO, ha,
838 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
839 id, lun);
840 eh_dev_reset_done:
841 return ret;
842 }
843
844 /**************************************************************************
845 * qla2x00_eh_wait_for_pending_commands
846 *
847 * Description:
848 * Waits for all the commands to come back from the specified host.
849 *
850 * Input:
851 * ha - pointer to scsi_qla_host structure.
852 *
853 * Returns:
854 * 1 : SUCCESS
855 * 0 : FAILED
856 *
857 * Note:
858 **************************************************************************/
859 static int
860 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
861 {
862 int cnt;
863 int status;
864 srb_t *sp;
865 struct scsi_cmnd *cmd;
866 unsigned long flags;
867
868 status = 1;
869
870 /*
871 * Waiting for all commands for the designated target in the active
872 * array
873 */
874 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
875 spin_lock_irqsave(&ha->hardware_lock, flags);
876 sp = ha->outstanding_cmds[cnt];
877 if (sp) {
878 cmd = sp->cmd;
879 spin_unlock_irqrestore(&ha->hardware_lock, flags);
880 status = qla2x00_eh_wait_on_command(ha, cmd);
881 if (status == 0)
882 break;
883 }
884 else {
885 spin_unlock_irqrestore(&ha->hardware_lock, flags);
886 }
887 }
888 return (status);
889 }
890
891
892 /**************************************************************************
893 * qla2xxx_eh_bus_reset
894 *
895 * Description:
896 * The bus reset function will reset the bus and abort any executing
897 * commands.
898 *
899 * Input:
900 * cmd = Linux SCSI command packet of the command that cause the
901 * bus reset.
902 *
903 * Returns:
904 * SUCCESS/FAILURE (defined as macro in scsi.h).
905 *
906 **************************************************************************/
907 static int
908 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
909 {
910 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
911 scsi_qla_host_t *pha = to_qla_parent(ha);
912 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
913 int ret = FAILED;
914 unsigned int id, lun;
915 unsigned long serial;
916
917 qla2x00_block_error_handler(cmd);
918
919 id = cmd->device->id;
920 lun = cmd->device->lun;
921 serial = cmd->serial_number;
922
923 if (!fcport)
924 return ret;
925
926 qla_printk(KERN_INFO, ha,
927 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
928
929 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
930 DEBUG2(printk("%s failed:board disabled\n",__func__));
931 goto eh_bus_reset_done;
932 }
933
934 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
935 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
936 ret = SUCCESS;
937 }
938 if (ret == FAILED)
939 goto eh_bus_reset_done;
940
941 /* Flush outstanding commands. */
942 if (!qla2x00_eh_wait_for_pending_commands(pha))
943 ret = FAILED;
944
945 eh_bus_reset_done:
946 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
947 (ret == FAILED) ? "failed" : "succeded");
948
949 return ret;
950 }
951
952 /**************************************************************************
953 * qla2xxx_eh_host_reset
954 *
955 * Description:
956 * The reset function will reset the Adapter.
957 *
958 * Input:
959 * cmd = Linux SCSI command packet of the command that cause the
960 * adapter reset.
961 *
962 * Returns:
963 * Either SUCCESS or FAILED.
964 *
965 * Note:
966 **************************************************************************/
967 static int
968 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
969 {
970 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
971 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
972 int ret = FAILED;
973 unsigned int id, lun;
974 unsigned long serial;
975 scsi_qla_host_t *pha = to_qla_parent(ha);
976
977 qla2x00_block_error_handler(cmd);
978
979 id = cmd->device->id;
980 lun = cmd->device->lun;
981 serial = cmd->serial_number;
982
983 if (!fcport)
984 return ret;
985
986 qla_printk(KERN_INFO, ha,
987 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
988
989 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
990 goto eh_host_reset_lock;
991
992 /*
993 * Fixme-may be dpc thread is active and processing
994 * loop_resync,so wait a while for it to
995 * be completed and then issue big hammer.Otherwise
996 * it may cause I/O failure as big hammer marks the
997 * devices as lost kicking of the port_down_timer
998 * while dpc is stuck for the mailbox to complete.
999 */
1000 qla2x00_wait_for_loop_ready(ha);
1001 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1002 if (qla2x00_abort_isp(pha)) {
1003 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1004 /* failed. schedule dpc to try */
1005 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1006
1007 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1008 goto eh_host_reset_lock;
1009 }
1010 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1011
1012 /* Waiting for our command in done_queue to be returned to OS.*/
1013 if (qla2x00_eh_wait_for_pending_commands(pha))
1014 ret = SUCCESS;
1015
1016 if (ha->parent)
1017 qla2x00_vp_abort_isp(ha);
1018
1019 eh_host_reset_lock:
1020 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1021 (ret == FAILED) ? "failed" : "succeded");
1022
1023 return ret;
1024 }
1025
1026 /*
1027 * qla2x00_loop_reset
1028 * Issue loop reset.
1029 *
1030 * Input:
1031 * ha = adapter block pointer.
1032 *
1033 * Returns:
1034 * 0 = success
1035 */
1036 int
1037 qla2x00_loop_reset(scsi_qla_host_t *ha)
1038 {
1039 int ret;
1040 struct fc_port *fcport;
1041
1042 if (ha->flags.enable_lip_full_login) {
1043 ret = qla2x00_full_login_lip(ha);
1044 if (ret != QLA_SUCCESS) {
1045 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1046 "full_login_lip=%d.\n", __func__, ha->host_no,
1047 ret));
1048 }
1049 atomic_set(&ha->loop_state, LOOP_DOWN);
1050 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1051 qla2x00_mark_all_devices_lost(ha, 0);
1052 qla2x00_wait_for_loop_ready(ha);
1053 }
1054
1055 if (ha->flags.enable_lip_reset) {
1056 ret = qla2x00_lip_reset(ha);
1057 if (ret != QLA_SUCCESS) {
1058 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1059 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1060 }
1061 qla2x00_wait_for_loop_ready(ha);
1062 }
1063
1064 if (ha->flags.enable_target_reset) {
1065 list_for_each_entry(fcport, &ha->fcports, list) {
1066 if (fcport->port_type != FCT_TARGET)
1067 continue;
1068
1069 ret = ha->isp_ops->abort_target(fcport);
1070 if (ret != QLA_SUCCESS) {
1071 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1072 "target_reset=%d d_id=%x.\n", __func__,
1073 ha->host_no, ret, fcport->d_id.b24));
1074 }
1075 }
1076 }
1077
1078 /* Issue marker command only when we are going to start the I/O */
1079 ha->marker_needed = 1;
1080
1081 return QLA_SUCCESS;
1082 }
1083
1084 void
1085 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1086 {
1087 int cnt;
1088 unsigned long flags;
1089 srb_t *sp;
1090
1091 spin_lock_irqsave(&ha->hardware_lock, flags);
1092 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1093 sp = ha->outstanding_cmds[cnt];
1094 if (sp) {
1095 ha->outstanding_cmds[cnt] = NULL;
1096 sp->flags = 0;
1097 sp->cmd->result = res;
1098 sp->cmd->host_scribble = (unsigned char *)NULL;
1099 qla2x00_sp_compl(ha, sp);
1100 }
1101 }
1102 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1103 }
1104
1105 static int
1106 qla2xxx_slave_alloc(struct scsi_device *sdev)
1107 {
1108 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1109
1110 if (!rport || fc_remote_port_chkready(rport))
1111 return -ENXIO;
1112
1113 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1114
1115 return 0;
1116 }
1117
1118 static int
1119 qla2xxx_slave_configure(struct scsi_device *sdev)
1120 {
1121 scsi_qla_host_t *ha = shost_priv(sdev->host);
1122 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1123
1124 if (sdev->tagged_supported)
1125 scsi_activate_tcq(sdev, ha->max_q_depth);
1126 else
1127 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1128
1129 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1130
1131 return 0;
1132 }
1133
1134 static void
1135 qla2xxx_slave_destroy(struct scsi_device *sdev)
1136 {
1137 sdev->hostdata = NULL;
1138 }
1139
1140 static int
1141 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1142 {
1143 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1144 return sdev->queue_depth;
1145 }
1146
1147 static int
1148 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1149 {
1150 if (sdev->tagged_supported) {
1151 scsi_set_tag_type(sdev, tag_type);
1152 if (tag_type)
1153 scsi_activate_tcq(sdev, sdev->queue_depth);
1154 else
1155 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1156 } else
1157 tag_type = 0;
1158
1159 return tag_type;
1160 }
1161
1162 /**
1163 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1164 * @ha: HA context
1165 *
1166 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1167 * supported addressing method.
1168 */
1169 static void
1170 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1171 {
1172 /* Assume a 32bit DMA mask. */
1173 ha->flags.enable_64bit_addressing = 0;
1174
1175 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1176 /* Any upper-dword bits set? */
1177 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1178 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1179 /* Ok, a 64bit DMA mask is applicable. */
1180 ha->flags.enable_64bit_addressing = 1;
1181 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1182 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1183 return;
1184 }
1185 }
1186
1187 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1188 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1189 }
1190
1191 static void
1192 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1193 {
1194 unsigned long flags = 0;
1195 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1196
1197 spin_lock_irqsave(&ha->hardware_lock, flags);
1198 ha->interrupts_on = 1;
1199 /* enable risc and host interrupts */
1200 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1201 RD_REG_WORD(&reg->ictrl);
1202 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1203
1204 }
1205
1206 static void
1207 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1208 {
1209 unsigned long flags = 0;
1210 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1211
1212 spin_lock_irqsave(&ha->hardware_lock, flags);
1213 ha->interrupts_on = 0;
1214 /* disable risc and host interrupts */
1215 WRT_REG_WORD(&reg->ictrl, 0);
1216 RD_REG_WORD(&reg->ictrl);
1217 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1218 }
1219
1220 static void
1221 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1222 {
1223 unsigned long flags = 0;
1224 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1225
1226 spin_lock_irqsave(&ha->hardware_lock, flags);
1227 ha->interrupts_on = 1;
1228 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1229 RD_REG_DWORD(&reg->ictrl);
1230 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1231 }
1232
1233 static void
1234 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1235 {
1236 unsigned long flags = 0;
1237 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1238
1239 spin_lock_irqsave(&ha->hardware_lock, flags);
1240 ha->interrupts_on = 0;
1241 WRT_REG_DWORD(&reg->ictrl, 0);
1242 RD_REG_DWORD(&reg->ictrl);
1243 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1244 }
1245
1246 static struct isp_operations qla2100_isp_ops = {
1247 .pci_config = qla2100_pci_config,
1248 .reset_chip = qla2x00_reset_chip,
1249 .chip_diag = qla2x00_chip_diag,
1250 .config_rings = qla2x00_config_rings,
1251 .reset_adapter = qla2x00_reset_adapter,
1252 .nvram_config = qla2x00_nvram_config,
1253 .update_fw_options = qla2x00_update_fw_options,
1254 .load_risc = qla2x00_load_risc,
1255 .pci_info_str = qla2x00_pci_info_str,
1256 .fw_version_str = qla2x00_fw_version_str,
1257 .intr_handler = qla2100_intr_handler,
1258 .enable_intrs = qla2x00_enable_intrs,
1259 .disable_intrs = qla2x00_disable_intrs,
1260 .abort_command = qla2x00_abort_command,
1261 .abort_target = qla2x00_abort_target,
1262 .fabric_login = qla2x00_login_fabric,
1263 .fabric_logout = qla2x00_fabric_logout,
1264 .calc_req_entries = qla2x00_calc_iocbs_32,
1265 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1266 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1267 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1268 .read_nvram = qla2x00_read_nvram_data,
1269 .write_nvram = qla2x00_write_nvram_data,
1270 .fw_dump = qla2100_fw_dump,
1271 .beacon_on = NULL,
1272 .beacon_off = NULL,
1273 .beacon_blink = NULL,
1274 .read_optrom = qla2x00_read_optrom_data,
1275 .write_optrom = qla2x00_write_optrom_data,
1276 .get_flash_version = qla2x00_get_flash_version,
1277 };
1278
1279 static struct isp_operations qla2300_isp_ops = {
1280 .pci_config = qla2300_pci_config,
1281 .reset_chip = qla2x00_reset_chip,
1282 .chip_diag = qla2x00_chip_diag,
1283 .config_rings = qla2x00_config_rings,
1284 .reset_adapter = qla2x00_reset_adapter,
1285 .nvram_config = qla2x00_nvram_config,
1286 .update_fw_options = qla2x00_update_fw_options,
1287 .load_risc = qla2x00_load_risc,
1288 .pci_info_str = qla2x00_pci_info_str,
1289 .fw_version_str = qla2x00_fw_version_str,
1290 .intr_handler = qla2300_intr_handler,
1291 .enable_intrs = qla2x00_enable_intrs,
1292 .disable_intrs = qla2x00_disable_intrs,
1293 .abort_command = qla2x00_abort_command,
1294 .abort_target = qla2x00_abort_target,
1295 .fabric_login = qla2x00_login_fabric,
1296 .fabric_logout = qla2x00_fabric_logout,
1297 .calc_req_entries = qla2x00_calc_iocbs_32,
1298 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1299 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1300 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1301 .read_nvram = qla2x00_read_nvram_data,
1302 .write_nvram = qla2x00_write_nvram_data,
1303 .fw_dump = qla2300_fw_dump,
1304 .beacon_on = qla2x00_beacon_on,
1305 .beacon_off = qla2x00_beacon_off,
1306 .beacon_blink = qla2x00_beacon_blink,
1307 .read_optrom = qla2x00_read_optrom_data,
1308 .write_optrom = qla2x00_write_optrom_data,
1309 .get_flash_version = qla2x00_get_flash_version,
1310 };
1311
1312 static struct isp_operations qla24xx_isp_ops = {
1313 .pci_config = qla24xx_pci_config,
1314 .reset_chip = qla24xx_reset_chip,
1315 .chip_diag = qla24xx_chip_diag,
1316 .config_rings = qla24xx_config_rings,
1317 .reset_adapter = qla24xx_reset_adapter,
1318 .nvram_config = qla24xx_nvram_config,
1319 .update_fw_options = qla24xx_update_fw_options,
1320 .load_risc = qla24xx_load_risc,
1321 .pci_info_str = qla24xx_pci_info_str,
1322 .fw_version_str = qla24xx_fw_version_str,
1323 .intr_handler = qla24xx_intr_handler,
1324 .enable_intrs = qla24xx_enable_intrs,
1325 .disable_intrs = qla24xx_disable_intrs,
1326 .abort_command = qla24xx_abort_command,
1327 .abort_target = qla24xx_abort_target,
1328 .fabric_login = qla24xx_login_fabric,
1329 .fabric_logout = qla24xx_fabric_logout,
1330 .calc_req_entries = NULL,
1331 .build_iocbs = NULL,
1332 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1333 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1334 .read_nvram = qla24xx_read_nvram_data,
1335 .write_nvram = qla24xx_write_nvram_data,
1336 .fw_dump = qla24xx_fw_dump,
1337 .beacon_on = qla24xx_beacon_on,
1338 .beacon_off = qla24xx_beacon_off,
1339 .beacon_blink = qla24xx_beacon_blink,
1340 .read_optrom = qla24xx_read_optrom_data,
1341 .write_optrom = qla24xx_write_optrom_data,
1342 .get_flash_version = qla24xx_get_flash_version,
1343 };
1344
1345 static struct isp_operations qla25xx_isp_ops = {
1346 .pci_config = qla25xx_pci_config,
1347 .reset_chip = qla24xx_reset_chip,
1348 .chip_diag = qla24xx_chip_diag,
1349 .config_rings = qla24xx_config_rings,
1350 .reset_adapter = qla24xx_reset_adapter,
1351 .nvram_config = qla24xx_nvram_config,
1352 .update_fw_options = qla24xx_update_fw_options,
1353 .load_risc = qla24xx_load_risc,
1354 .pci_info_str = qla24xx_pci_info_str,
1355 .fw_version_str = qla24xx_fw_version_str,
1356 .intr_handler = qla24xx_intr_handler,
1357 .enable_intrs = qla24xx_enable_intrs,
1358 .disable_intrs = qla24xx_disable_intrs,
1359 .abort_command = qla24xx_abort_command,
1360 .abort_target = qla24xx_abort_target,
1361 .fabric_login = qla24xx_login_fabric,
1362 .fabric_logout = qla24xx_fabric_logout,
1363 .calc_req_entries = NULL,
1364 .build_iocbs = NULL,
1365 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1366 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1367 .read_nvram = qla25xx_read_nvram_data,
1368 .write_nvram = qla25xx_write_nvram_data,
1369 .fw_dump = qla25xx_fw_dump,
1370 .beacon_on = qla24xx_beacon_on,
1371 .beacon_off = qla24xx_beacon_off,
1372 .beacon_blink = qla24xx_beacon_blink,
1373 .read_optrom = qla25xx_read_optrom_data,
1374 .write_optrom = qla24xx_write_optrom_data,
1375 .get_flash_version = qla24xx_get_flash_version,
1376 };
1377
1378 static inline void
1379 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1380 {
1381 ha->device_type = DT_EXTENDED_IDS;
1382 switch (ha->pdev->device) {
1383 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1384 ha->device_type |= DT_ISP2100;
1385 ha->device_type &= ~DT_EXTENDED_IDS;
1386 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1387 break;
1388 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1389 ha->device_type |= DT_ISP2200;
1390 ha->device_type &= ~DT_EXTENDED_IDS;
1391 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1392 break;
1393 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1394 ha->device_type |= DT_ISP2300;
1395 ha->device_type |= DT_ZIO_SUPPORTED;
1396 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1397 break;
1398 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1399 ha->device_type |= DT_ISP2312;
1400 ha->device_type |= DT_ZIO_SUPPORTED;
1401 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1402 break;
1403 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1404 ha->device_type |= DT_ISP2322;
1405 ha->device_type |= DT_ZIO_SUPPORTED;
1406 if (ha->pdev->subsystem_vendor == 0x1028 &&
1407 ha->pdev->subsystem_device == 0x0170)
1408 ha->device_type |= DT_OEM_001;
1409 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1410 break;
1411 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1412 ha->device_type |= DT_ISP6312;
1413 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1414 break;
1415 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1416 ha->device_type |= DT_ISP6322;
1417 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1418 break;
1419 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1420 ha->device_type |= DT_ISP2422;
1421 ha->device_type |= DT_ZIO_SUPPORTED;
1422 ha->device_type |= DT_FWI2;
1423 ha->device_type |= DT_IIDMA;
1424 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1425 break;
1426 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1427 ha->device_type |= DT_ISP2432;
1428 ha->device_type |= DT_ZIO_SUPPORTED;
1429 ha->device_type |= DT_FWI2;
1430 ha->device_type |= DT_IIDMA;
1431 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1432 break;
1433 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1434 ha->device_type |= DT_ISP5422;
1435 ha->device_type |= DT_FWI2;
1436 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1437 break;
1438 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1439 ha->device_type |= DT_ISP5432;
1440 ha->device_type |= DT_FWI2;
1441 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1442 break;
1443 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1444 ha->device_type |= DT_ISP2532;
1445 ha->device_type |= DT_ZIO_SUPPORTED;
1446 ha->device_type |= DT_FWI2;
1447 ha->device_type |= DT_IIDMA;
1448 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1449 break;
1450 }
1451 }
1452
1453 static int
1454 qla2x00_iospace_config(scsi_qla_host_t *ha)
1455 {
1456 resource_size_t pio;
1457
1458 if (pci_request_selected_regions(ha->pdev, ha->bars,
1459 QLA2XXX_DRIVER_NAME)) {
1460 qla_printk(KERN_WARNING, ha,
1461 "Failed to reserve PIO/MMIO regions (%s)\n",
1462 pci_name(ha->pdev));
1463
1464 goto iospace_error_exit;
1465 }
1466 if (!(ha->bars & 1))
1467 goto skip_pio;
1468
1469 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1470 pio = pci_resource_start(ha->pdev, 0);
1471 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1472 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1473 qla_printk(KERN_WARNING, ha,
1474 "Invalid PCI I/O region size (%s)...\n",
1475 pci_name(ha->pdev));
1476 pio = 0;
1477 }
1478 } else {
1479 qla_printk(KERN_WARNING, ha,
1480 "region #0 not a PIO resource (%s)...\n",
1481 pci_name(ha->pdev));
1482 pio = 0;
1483 }
1484 ha->pio_address = pio;
1485
1486 skip_pio:
1487 /* Use MMIO operations for all accesses. */
1488 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1489 qla_printk(KERN_ERR, ha,
1490 "region #1 not an MMIO resource (%s), aborting\n",
1491 pci_name(ha->pdev));
1492 goto iospace_error_exit;
1493 }
1494 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1495 qla_printk(KERN_ERR, ha,
1496 "Invalid PCI mem region size (%s), aborting\n",
1497 pci_name(ha->pdev));
1498 goto iospace_error_exit;
1499 }
1500
1501 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1502 if (!ha->iobase) {
1503 qla_printk(KERN_ERR, ha,
1504 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1505
1506 goto iospace_error_exit;
1507 }
1508
1509 return (0);
1510
1511 iospace_error_exit:
1512 return (-ENOMEM);
1513 }
1514
1515 static void
1516 qla2xxx_scan_start(struct Scsi_Host *shost)
1517 {
1518 scsi_qla_host_t *ha = shost_priv(shost);
1519
1520 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1521 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1522 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1523 }
1524
1525 static int
1526 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1527 {
1528 scsi_qla_host_t *ha = shost_priv(shost);
1529
1530 if (!ha->host)
1531 return 1;
1532 if (time > ha->loop_reset_delay * HZ)
1533 return 1;
1534
1535 return atomic_read(&ha->loop_state) == LOOP_READY;
1536 }
1537
1538 /*
1539 * PCI driver interface
1540 */
1541 static int __devinit
1542 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1543 {
1544 int ret = -ENODEV;
1545 struct Scsi_Host *host;
1546 scsi_qla_host_t *ha;
1547 char pci_info[30];
1548 char fw_str[30];
1549 struct scsi_host_template *sht;
1550 int bars, mem_only = 0;
1551
1552 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1553 sht = &qla2x00_driver_template;
1554 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1555 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1556 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1557 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1558 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1559 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1560 sht = &qla24xx_driver_template;
1561 mem_only = 1;
1562 }
1563
1564 if (mem_only) {
1565 if (pci_enable_device_mem(pdev))
1566 goto probe_out;
1567 } else {
1568 if (pci_enable_device(pdev))
1569 goto probe_out;
1570 }
1571
1572 if (pci_find_aer_capability(pdev))
1573 if (pci_enable_pcie_error_reporting(pdev))
1574 goto probe_out;
1575
1576 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1577 if (host == NULL) {
1578 printk(KERN_WARNING
1579 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1580 goto probe_disable_device;
1581 }
1582
1583 /* Clear our data area */
1584 ha = shost_priv(host);
1585 memset(ha, 0, sizeof(scsi_qla_host_t));
1586
1587 ha->pdev = pdev;
1588 ha->host = host;
1589 ha->host_no = host->host_no;
1590 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1591 ha->parent = NULL;
1592 ha->bars = bars;
1593 ha->mem_only = mem_only;
1594 spin_lock_init(&ha->hardware_lock);
1595
1596 /* Set ISP-type information. */
1597 qla2x00_set_isp_flags(ha);
1598
1599 /* Configure PCI I/O space */
1600 ret = qla2x00_iospace_config(ha);
1601 if (ret)
1602 goto probe_failed;
1603
1604 qla_printk(KERN_INFO, ha,
1605 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1606 ha->iobase);
1607
1608 ha->prev_topology = 0;
1609 ha->init_cb_size = sizeof(init_cb_t);
1610 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1611 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1612 ha->optrom_size = OPTROM_SIZE_2300;
1613
1614 ha->max_q_depth = MAX_Q_DEPTH;
1615 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1616 ha->max_q_depth = ql2xmaxqdepth;
1617
1618 /* Assign ISP specific operations. */
1619 if (IS_QLA2100(ha)) {
1620 host->max_id = MAX_TARGETS_2100;
1621 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1622 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1623 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1624 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1625 host->sg_tablesize = 32;
1626 ha->gid_list_info_size = 4;
1627 ha->isp_ops = &qla2100_isp_ops;
1628 } else if (IS_QLA2200(ha)) {
1629 host->max_id = MAX_TARGETS_2200;
1630 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1631 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1632 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1633 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1634 ha->gid_list_info_size = 4;
1635 ha->isp_ops = &qla2100_isp_ops;
1636 } else if (IS_QLA23XX(ha)) {
1637 host->max_id = MAX_TARGETS_2200;
1638 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1639 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1640 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1641 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1642 ha->gid_list_info_size = 6;
1643 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1644 ha->optrom_size = OPTROM_SIZE_2322;
1645 ha->isp_ops = &qla2300_isp_ops;
1646 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1647 host->max_id = MAX_TARGETS_2200;
1648 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1649 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1650 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1651 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1652 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1653 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1654 ha->gid_list_info_size = 8;
1655 ha->optrom_size = OPTROM_SIZE_24XX;
1656 ha->isp_ops = &qla24xx_isp_ops;
1657 } else if (IS_QLA25XX(ha)) {
1658 host->max_id = MAX_TARGETS_2200;
1659 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1660 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1661 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1662 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1663 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1664 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1665 ha->gid_list_info_size = 8;
1666 ha->optrom_size = OPTROM_SIZE_25XX;
1667 ha->isp_ops = &qla25xx_isp_ops;
1668 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1669 FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1670 }
1671 host->can_queue = ha->request_q_length + 128;
1672
1673 /* load the F/W, read paramaters, and init the H/W */
1674 ha->instance = num_hosts;
1675
1676 init_MUTEX(&ha->vport_sem);
1677 init_completion(&ha->mbx_cmd_comp);
1678 complete(&ha->mbx_cmd_comp);
1679 init_completion(&ha->mbx_intr_comp);
1680
1681 INIT_LIST_HEAD(&ha->list);
1682 INIT_LIST_HEAD(&ha->fcports);
1683 INIT_LIST_HEAD(&ha->vp_list);
1684 INIT_LIST_HEAD(&ha->work_list);
1685
1686 set_bit(0, (unsigned long *) ha->vp_idx_map);
1687
1688 qla2x00_config_dma_addressing(ha);
1689 if (qla2x00_mem_alloc(ha)) {
1690 qla_printk(KERN_WARNING, ha,
1691 "[ERROR] Failed to allocate memory for adapter\n");
1692
1693 ret = -ENOMEM;
1694 goto probe_failed;
1695 }
1696
1697 if (qla2x00_initialize_adapter(ha)) {
1698 qla_printk(KERN_WARNING, ha,
1699 "Failed to initialize adapter\n");
1700
1701 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1702 "Adapter flags %x.\n",
1703 ha->host_no, ha->device_flags));
1704
1705 ret = -ENODEV;
1706 goto probe_failed;
1707 }
1708
1709 /*
1710 * Startup the kernel thread for this host adapter
1711 */
1712 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1713 "%s_dpc", ha->host_str);
1714 if (IS_ERR(ha->dpc_thread)) {
1715 qla_printk(KERN_WARNING, ha,
1716 "Unable to start DPC thread!\n");
1717 ret = PTR_ERR(ha->dpc_thread);
1718 goto probe_failed;
1719 }
1720
1721 host->this_id = 255;
1722 host->cmd_per_lun = 3;
1723 host->unique_id = ha->instance;
1724 host->max_cmd_len = MAX_CMDSZ;
1725 host->max_channel = MAX_BUSES - 1;
1726 host->max_lun = MAX_LUNS;
1727 host->transportt = qla2xxx_transport_template;
1728
1729 ret = qla2x00_request_irqs(ha);
1730 if (ret)
1731 goto probe_failed;
1732
1733 /* Initialized the timer */
1734 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1735
1736 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1737 ha->host_no, ha));
1738
1739 pci_set_drvdata(pdev, ha);
1740
1741 ha->flags.init_done = 1;
1742 ha->flags.online = 1;
1743
1744 num_hosts++;
1745
1746 ret = scsi_add_host(host, &pdev->dev);
1747 if (ret)
1748 goto probe_failed;
1749
1750 scsi_scan_host(host);
1751
1752 qla2x00_alloc_sysfs_attr(ha);
1753
1754 qla2x00_init_host_attr(ha);
1755
1756 qla2x00_dfs_setup(ha);
1757
1758 qla_printk(KERN_INFO, ha, "\n"
1759 " QLogic Fibre Channel HBA Driver: %s\n"
1760 " QLogic %s - %s\n"
1761 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1762 qla2x00_version_str, ha->model_number,
1763 ha->model_desc ? ha->model_desc: "", pdev->device,
1764 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1765 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1766 ha->isp_ops->fw_version_str(ha, fw_str));
1767
1768 return 0;
1769
1770 probe_failed:
1771 qla2x00_free_device(ha);
1772
1773 scsi_host_put(host);
1774
1775 probe_disable_device:
1776 pci_disable_device(pdev);
1777
1778 probe_out:
1779 return ret;
1780 }
1781
1782 static void
1783 qla2x00_remove_one(struct pci_dev *pdev)
1784 {
1785 scsi_qla_host_t *ha;
1786
1787 ha = pci_get_drvdata(pdev);
1788
1789 qla2x00_dfs_remove(ha);
1790
1791 qla2x00_free_sysfs_attr(ha);
1792
1793 fc_remove_host(ha->host);
1794
1795 scsi_remove_host(ha->host);
1796
1797 qla2x00_free_device(ha);
1798
1799 scsi_host_put(ha->host);
1800
1801 pci_disable_device(pdev);
1802 pci_set_drvdata(pdev, NULL);
1803 }
1804
1805 static void
1806 qla2x00_free_device(scsi_qla_host_t *ha)
1807 {
1808 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1809
1810 /* Disable timer */
1811 if (ha->timer_active)
1812 qla2x00_stop_timer(ha);
1813
1814 ha->flags.online = 0;
1815
1816 /* Kill the kernel thread for this host */
1817 if (ha->dpc_thread) {
1818 struct task_struct *t = ha->dpc_thread;
1819
1820 /*
1821 * qla2xxx_wake_dpc checks for ->dpc_thread
1822 * so we need to zero it out.
1823 */
1824 ha->dpc_thread = NULL;
1825 kthread_stop(t);
1826 }
1827
1828 if (ha->flags.fce_enabled)
1829 qla2x00_disable_fce_trace(ha, NULL, NULL);
1830
1831 if (ha->eft)
1832 qla2x00_disable_eft_trace(ha);
1833
1834 /* Stop currently executing firmware. */
1835 qla2x00_try_to_stop_firmware(ha);
1836
1837 /* turn-off interrupts on the card */
1838 if (ha->interrupts_on)
1839 ha->isp_ops->disable_intrs(ha);
1840
1841 qla2x00_mem_free(ha);
1842
1843 qla2x00_free_irqs(ha);
1844
1845 /* release io space registers */
1846 if (ha->iobase)
1847 iounmap(ha->iobase);
1848 pci_release_selected_regions(ha->pdev, ha->bars);
1849 }
1850
1851 static inline void
1852 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1853 int defer)
1854 {
1855 unsigned long flags;
1856 struct fc_rport *rport;
1857
1858 if (!fcport->rport)
1859 return;
1860
1861 rport = fcport->rport;
1862 if (defer) {
1863 spin_lock_irqsave(&fcport->rport_lock, flags);
1864 fcport->drport = rport;
1865 fcport->rport = NULL;
1866 *(fc_port_t **)rport->dd_data = NULL;
1867 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1868 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1869 } else {
1870 spin_lock_irqsave(&fcport->rport_lock, flags);
1871 fcport->rport = NULL;
1872 *(fc_port_t **)rport->dd_data = NULL;
1873 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1874 fc_remote_port_delete(rport);
1875 }
1876 }
1877
1878 /*
1879 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1880 *
1881 * Input: ha = adapter block pointer. fcport = port structure pointer.
1882 *
1883 * Return: None.
1884 *
1885 * Context:
1886 */
1887 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1888 int do_login, int defer)
1889 {
1890 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1891 ha->vp_idx == fcport->vp_idx)
1892 qla2x00_schedule_rport_del(ha, fcport, defer);
1893
1894 /*
1895 * We may need to retry the login, so don't change the state of the
1896 * port but do the retries.
1897 */
1898 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1899 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1900
1901 if (!do_login)
1902 return;
1903
1904 if (fcport->login_retry == 0) {
1905 fcport->login_retry = ha->login_retry_count;
1906 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1907
1908 DEBUG(printk("scsi(%ld): Port login retry: "
1909 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1910 "id = 0x%04x retry cnt=%d\n",
1911 ha->host_no,
1912 fcport->port_name[0],
1913 fcport->port_name[1],
1914 fcport->port_name[2],
1915 fcport->port_name[3],
1916 fcport->port_name[4],
1917 fcport->port_name[5],
1918 fcport->port_name[6],
1919 fcport->port_name[7],
1920 fcport->loop_id,
1921 fcport->login_retry));
1922 }
1923 }
1924
1925 /*
1926 * qla2x00_mark_all_devices_lost
1927 * Updates fcport state when device goes offline.
1928 *
1929 * Input:
1930 * ha = adapter block pointer.
1931 * fcport = port structure pointer.
1932 *
1933 * Return:
1934 * None.
1935 *
1936 * Context:
1937 */
1938 void
1939 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1940 {
1941 fc_port_t *fcport;
1942 scsi_qla_host_t *pha = to_qla_parent(ha);
1943
1944 list_for_each_entry(fcport, &pha->fcports, list) {
1945 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1946 continue;
1947 /*
1948 * No point in marking the device as lost, if the device is
1949 * already DEAD.
1950 */
1951 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1952 continue;
1953 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1954 if (defer)
1955 qla2x00_schedule_rport_del(ha, fcport, defer);
1956 else if (ha->vp_idx == fcport->vp_idx)
1957 qla2x00_schedule_rport_del(ha, fcport, defer);
1958 }
1959 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1960 }
1961
1962 if (defer)
1963 qla2xxx_wake_dpc(ha);
1964 }
1965
1966 /*
1967 * qla2x00_mem_alloc
1968 * Allocates adapter memory.
1969 *
1970 * Returns:
1971 * 0 = success.
1972 * !0 = failure.
1973 */
1974 static int
1975 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1976 {
1977 char name[16];
1978
1979 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1980 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1981 GFP_KERNEL);
1982 if (!ha->request_ring)
1983 goto fail;
1984
1985 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1986 (ha->response_q_length + 1) * sizeof(response_t),
1987 &ha->response_dma, GFP_KERNEL);
1988 if (!ha->response_ring)
1989 goto fail_free_request_ring;
1990
1991 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1992 &ha->gid_list_dma, GFP_KERNEL);
1993 if (!ha->gid_list)
1994 goto fail_free_response_ring;
1995
1996 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1997 &ha->init_cb_dma, GFP_KERNEL);
1998 if (!ha->init_cb)
1999 goto fail_free_gid_list;
2000
2001 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2002 ha->host_no);
2003 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2004 DMA_POOL_SIZE, 8, 0);
2005 if (!ha->s_dma_pool)
2006 goto fail_free_init_cb;
2007
2008 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2009 if (!ha->srb_mempool)
2010 goto fail_free_s_dma_pool;
2011
2012 /* Get memory for cached NVRAM */
2013 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2014 if (!ha->nvram)
2015 goto fail_free_srb_mempool;
2016
2017 /* Allocate memory for SNS commands */
2018 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2019 /* Get consistent memory allocated for SNS commands */
2020 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2021 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2022 if (!ha->sns_cmd)
2023 goto fail_free_nvram;
2024 } else {
2025 /* Get consistent memory allocated for MS IOCB */
2026 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2027 &ha->ms_iocb_dma);
2028 if (!ha->ms_iocb)
2029 goto fail_free_nvram;
2030
2031 /* Get consistent memory allocated for CT SNS commands */
2032 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2033 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2034 if (!ha->ct_sns)
2035 goto fail_free_ms_iocb;
2036 }
2037
2038 return 0;
2039
2040 fail_free_ms_iocb:
2041 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2042 ha->ms_iocb = NULL;
2043 ha->ms_iocb_dma = 0;
2044 fail_free_nvram:
2045 kfree(ha->nvram);
2046 ha->nvram = NULL;
2047 fail_free_srb_mempool:
2048 mempool_destroy(ha->srb_mempool);
2049 ha->srb_mempool = NULL;
2050 fail_free_s_dma_pool:
2051 dma_pool_destroy(ha->s_dma_pool);
2052 ha->s_dma_pool = NULL;
2053 fail_free_init_cb:
2054 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2055 ha->init_cb_dma);
2056 ha->init_cb = NULL;
2057 ha->init_cb_dma = 0;
2058 fail_free_gid_list:
2059 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2060 ha->gid_list_dma);
2061 ha->gid_list = NULL;
2062 ha->gid_list_dma = 0;
2063 fail_free_response_ring:
2064 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2065 sizeof(response_t), ha->response_ring, ha->response_dma);
2066 ha->response_ring = NULL;
2067 ha->response_dma = 0;
2068 fail_free_request_ring:
2069 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2070 sizeof(request_t), ha->request_ring, ha->request_dma);
2071 ha->request_ring = NULL;
2072 ha->request_dma = 0;
2073 fail:
2074 return -ENOMEM;
2075 }
2076
2077 /*
2078 * qla2x00_mem_free
2079 * Frees all adapter allocated memory.
2080 *
2081 * Input:
2082 * ha = adapter block pointer.
2083 */
2084 static void
2085 qla2x00_mem_free(scsi_qla_host_t *ha)
2086 {
2087 struct list_head *fcpl, *fcptemp;
2088 fc_port_t *fcport;
2089
2090 if (ha->srb_mempool)
2091 mempool_destroy(ha->srb_mempool);
2092
2093 if (ha->fce)
2094 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2095 ha->fce_dma);
2096
2097 if (ha->fw_dump) {
2098 if (ha->eft)
2099 dma_free_coherent(&ha->pdev->dev,
2100 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2101 vfree(ha->fw_dump);
2102 }
2103
2104 if (ha->sns_cmd)
2105 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2106 ha->sns_cmd, ha->sns_cmd_dma);
2107
2108 if (ha->ct_sns)
2109 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2110 ha->ct_sns, ha->ct_sns_dma);
2111
2112 if (ha->sfp_data)
2113 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2114
2115 if (ha->ms_iocb)
2116 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2117
2118 if (ha->s_dma_pool)
2119 dma_pool_destroy(ha->s_dma_pool);
2120
2121 if (ha->init_cb)
2122 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2123 ha->init_cb, ha->init_cb_dma);
2124
2125 if (ha->gid_list)
2126 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2127 ha->gid_list_dma);
2128
2129 if (ha->response_ring)
2130 dma_free_coherent(&ha->pdev->dev,
2131 (ha->response_q_length + 1) * sizeof(response_t),
2132 ha->response_ring, ha->response_dma);
2133
2134 if (ha->request_ring)
2135 dma_free_coherent(&ha->pdev->dev,
2136 (ha->request_q_length + 1) * sizeof(request_t),
2137 ha->request_ring, ha->request_dma);
2138
2139 ha->srb_mempool = NULL;
2140 ha->eft = NULL;
2141 ha->eft_dma = 0;
2142 ha->sns_cmd = NULL;
2143 ha->sns_cmd_dma = 0;
2144 ha->ct_sns = NULL;
2145 ha->ct_sns_dma = 0;
2146 ha->ms_iocb = NULL;
2147 ha->ms_iocb_dma = 0;
2148 ha->init_cb = NULL;
2149 ha->init_cb_dma = 0;
2150
2151 ha->s_dma_pool = NULL;
2152
2153 ha->gid_list = NULL;
2154 ha->gid_list_dma = 0;
2155
2156 ha->response_ring = NULL;
2157 ha->response_dma = 0;
2158 ha->request_ring = NULL;
2159 ha->request_dma = 0;
2160
2161 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2162 fcport = list_entry(fcpl, fc_port_t, list);
2163
2164 /* fc ports */
2165 list_del_init(&fcport->list);
2166 kfree(fcport);
2167 }
2168 INIT_LIST_HEAD(&ha->fcports);
2169
2170 ha->fw_dump = NULL;
2171 ha->fw_dumped = 0;
2172 ha->fw_dump_reading = 0;
2173
2174 vfree(ha->optrom_buffer);
2175 kfree(ha->nvram);
2176 }
2177
2178 struct qla_work_evt *
2179 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2180 int locked)
2181 {
2182 struct qla_work_evt *e;
2183
2184 e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2185 GFP_KERNEL);
2186 if (!e)
2187 return NULL;
2188
2189 INIT_LIST_HEAD(&e->list);
2190 e->type = type;
2191 e->flags = QLA_EVT_FLAG_FREE;
2192 return e;
2193 }
2194
2195 int
2196 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2197 {
2198 unsigned long flags;
2199
2200 if (!locked)
2201 spin_lock_irqsave(&ha->hardware_lock, flags);
2202 list_add_tail(&e->list, &ha->work_list);
2203 qla2xxx_wake_dpc(ha);
2204 if (!locked)
2205 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2206 return QLA_SUCCESS;
2207 }
2208
2209 int
2210 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2211 u32 data)
2212 {
2213 struct qla_work_evt *e;
2214
2215 e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2216 if (!e)
2217 return QLA_FUNCTION_FAILED;
2218
2219 e->u.aen.code = code;
2220 e->u.aen.data = data;
2221 return qla2x00_post_work(ha, e, 1);
2222 }
2223
2224 int
2225 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2226 uint16_t d2, uint16_t d3)
2227 {
2228 struct qla_work_evt *e;
2229
2230 e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2231 if (!e)
2232 return QLA_FUNCTION_FAILED;
2233
2234 e->u.hwe.code = code;
2235 e->u.hwe.d1 = d1;
2236 e->u.hwe.d2 = d2;
2237 e->u.hwe.d3 = d3;
2238 return qla2x00_post_work(ha, e, 1);
2239 }
2240
2241 static void
2242 qla2x00_do_work(struct scsi_qla_host *ha)
2243 {
2244 struct qla_work_evt *e;
2245
2246 spin_lock_irq(&ha->hardware_lock);
2247 while (!list_empty(&ha->work_list)) {
2248 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2249 list_del_init(&e->list);
2250 spin_unlock_irq(&ha->hardware_lock);
2251
2252 switch (e->type) {
2253 case QLA_EVT_AEN:
2254 fc_host_post_event(ha->host, fc_get_event_number(),
2255 e->u.aen.code, e->u.aen.data);
2256 break;
2257 case QLA_EVT_HWE_LOG:
2258 qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2259 e->u.hwe.d2, e->u.hwe.d3);
2260 break;
2261 }
2262 if (e->flags & QLA_EVT_FLAG_FREE)
2263 kfree(e);
2264 spin_lock_irq(&ha->hardware_lock);
2265 }
2266 spin_unlock_irq(&ha->hardware_lock);
2267 }
2268
2269 /**************************************************************************
2270 * qla2x00_do_dpc
2271 * This kernel thread is a task that is schedule by the interrupt handler
2272 * to perform the background processing for interrupts.
2273 *
2274 * Notes:
2275 * This task always run in the context of a kernel thread. It
2276 * is kick-off by the driver's detect code and starts up
2277 * up one per adapter. It immediately goes to sleep and waits for
2278 * some fibre event. When either the interrupt handler or
2279 * the timer routine detects a event it will one of the task
2280 * bits then wake us up.
2281 **************************************************************************/
2282 static int
2283 qla2x00_do_dpc(void *data)
2284 {
2285 int rval;
2286 scsi_qla_host_t *ha;
2287 fc_port_t *fcport;
2288 uint8_t status;
2289 uint16_t next_loopid;
2290 struct scsi_qla_host *vha;
2291 int i;
2292
2293
2294 ha = (scsi_qla_host_t *)data;
2295
2296 set_user_nice(current, -20);
2297
2298 while (!kthread_should_stop()) {
2299 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2300
2301 set_current_state(TASK_INTERRUPTIBLE);
2302 schedule();
2303 __set_current_state(TASK_RUNNING);
2304
2305 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2306
2307 /* Initialization not yet finished. Don't do anything yet. */
2308 if (!ha->flags.init_done)
2309 continue;
2310
2311 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2312
2313 ha->dpc_active = 1;
2314
2315 if (ha->flags.mbox_busy) {
2316 ha->dpc_active = 0;
2317 continue;
2318 }
2319
2320 qla2x00_do_work(ha);
2321
2322 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2323
2324 DEBUG(printk("scsi(%ld): dpc: sched "
2325 "qla2x00_abort_isp ha = %p\n",
2326 ha->host_no, ha));
2327 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2328 &ha->dpc_flags))) {
2329
2330 if (qla2x00_abort_isp(ha)) {
2331 /* failed. retry later */
2332 set_bit(ISP_ABORT_NEEDED,
2333 &ha->dpc_flags);
2334 }
2335 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2336 }
2337
2338 for_each_mapped_vp_idx(ha, i) {
2339 list_for_each_entry(vha, &ha->vp_list,
2340 vp_list) {
2341 if (i == vha->vp_idx) {
2342 set_bit(ISP_ABORT_NEEDED,
2343 &vha->dpc_flags);
2344 break;
2345 }
2346 }
2347 }
2348
2349 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2350 ha->host_no));
2351 }
2352
2353 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2354 qla2x00_update_fcports(ha);
2355
2356 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2357 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2358
2359 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2360 ha->host_no));
2361
2362 qla2x00_rst_aen(ha);
2363 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2364 }
2365
2366 /* Retry each device up to login retry count */
2367 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2368 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2369 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2370
2371 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2372 ha->host_no));
2373
2374 next_loopid = 0;
2375 list_for_each_entry(fcport, &ha->fcports, list) {
2376 /*
2377 * If the port is not ONLINE then try to login
2378 * to it if we haven't run out of retries.
2379 */
2380 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2381 fcport->login_retry) {
2382
2383 if (fcport->flags & FCF_FABRIC_DEVICE) {
2384 if (fcport->flags &
2385 FCF_TAPE_PRESENT)
2386 ha->isp_ops->fabric_logout(
2387 ha, fcport->loop_id,
2388 fcport->d_id.b.domain,
2389 fcport->d_id.b.area,
2390 fcport->d_id.b.al_pa);
2391 status = qla2x00_fabric_login(
2392 ha, fcport, &next_loopid);
2393 } else
2394 status =
2395 qla2x00_local_device_login(
2396 ha, fcport);
2397
2398 fcport->login_retry--;
2399 if (status == QLA_SUCCESS) {
2400 fcport->old_loop_id = fcport->loop_id;
2401
2402 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2403 ha->host_no, fcport->loop_id));
2404
2405 qla2x00_update_fcport(ha,
2406 fcport);
2407 } else if (status == 1) {
2408 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2409 /* retry the login again */
2410 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2411 ha->host_no,
2412 fcport->login_retry, fcport->loop_id));
2413 } else {
2414 fcport->login_retry = 0;
2415 }
2416 if (fcport->login_retry == 0)
2417 fcport->loop_id = FC_NO_LOOP_ID;
2418 }
2419 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2420 break;
2421 }
2422 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2423 ha->host_no));
2424 }
2425
2426 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2427
2428 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2429 ha->host_no));
2430
2431 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2432 &ha->dpc_flags))) {
2433
2434 rval = qla2x00_loop_resync(ha);
2435
2436 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2437 }
2438
2439 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2440 ha->host_no));
2441 }
2442
2443 if (!ha->interrupts_on)
2444 ha->isp_ops->enable_intrs(ha);
2445
2446 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2447 ha->isp_ops->beacon_blink(ha);
2448
2449 qla2x00_do_dpc_all_vps(ha);
2450
2451 ha->dpc_active = 0;
2452 } /* End of while(1) */
2453
2454 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2455
2456 /*
2457 * Make sure that nobody tries to wake us up again.
2458 */
2459 ha->dpc_active = 0;
2460
2461 return 0;
2462 }
2463
2464 void
2465 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2466 {
2467 if (ha->dpc_thread)
2468 wake_up_process(ha->dpc_thread);
2469 }
2470
2471 /*
2472 * qla2x00_rst_aen
2473 * Processes asynchronous reset.
2474 *
2475 * Input:
2476 * ha = adapter block pointer.
2477 */
2478 static void
2479 qla2x00_rst_aen(scsi_qla_host_t *ha)
2480 {
2481 if (ha->flags.online && !ha->flags.reset_active &&
2482 !atomic_read(&ha->loop_down_timer) &&
2483 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2484 do {
2485 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2486
2487 /*
2488 * Issue marker command only when we are going to start
2489 * the I/O.
2490 */
2491 ha->marker_needed = 1;
2492 } while (!atomic_read(&ha->loop_down_timer) &&
2493 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2494 }
2495 }
2496
2497 static void
2498 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2499 {
2500 struct scsi_cmnd *cmd = sp->cmd;
2501
2502 if (sp->flags & SRB_DMA_VALID) {
2503 scsi_dma_unmap(cmd);
2504 sp->flags &= ~SRB_DMA_VALID;
2505 }
2506 CMD_SP(cmd) = NULL;
2507 }
2508
2509 void
2510 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2511 {
2512 struct scsi_cmnd *cmd = sp->cmd;
2513
2514 qla2x00_sp_free_dma(ha, sp);
2515
2516 mempool_free(sp, ha->srb_mempool);
2517
2518 cmd->scsi_done(cmd);
2519 }
2520
2521 /**************************************************************************
2522 * qla2x00_timer
2523 *
2524 * Description:
2525 * One second timer
2526 *
2527 * Context: Interrupt
2528 ***************************************************************************/
2529 void
2530 qla2x00_timer(scsi_qla_host_t *ha)
2531 {
2532 unsigned long cpu_flags = 0;
2533 fc_port_t *fcport;
2534 int start_dpc = 0;
2535 int index;
2536 srb_t *sp;
2537 int t;
2538 scsi_qla_host_t *pha = to_qla_parent(ha);
2539
2540 /*
2541 * Ports - Port down timer.
2542 *
2543 * Whenever, a port is in the LOST state we start decrementing its port
2544 * down timer every second until it reaches zero. Once it reaches zero
2545 * the port it marked DEAD.
2546 */
2547 t = 0;
2548 list_for_each_entry(fcport, &ha->fcports, list) {
2549 if (fcport->port_type != FCT_TARGET)
2550 continue;
2551
2552 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2553
2554 if (atomic_read(&fcport->port_down_timer) == 0)
2555 continue;
2556
2557 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2558 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2559
2560 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2561 "%d remaining\n",
2562 ha->host_no,
2563 t, atomic_read(&fcport->port_down_timer)));
2564 }
2565 t++;
2566 } /* End of for fcport */
2567
2568
2569 /* Loop down handler. */
2570 if (atomic_read(&ha->loop_down_timer) > 0 &&
2571 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2572
2573 if (atomic_read(&ha->loop_down_timer) ==
2574 ha->loop_down_abort_time) {
2575
2576 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2577 "queues before time expire\n",
2578 ha->host_no));
2579
2580 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2581 atomic_set(&ha->loop_state, LOOP_DEAD);
2582
2583 /* Schedule an ISP abort to return any tape commands. */
2584 /* NPIV - scan physical port only */
2585 if (!ha->parent) {
2586 spin_lock_irqsave(&ha->hardware_lock,
2587 cpu_flags);
2588 for (index = 1;
2589 index < MAX_OUTSTANDING_COMMANDS;
2590 index++) {
2591 fc_port_t *sfcp;
2592
2593 sp = ha->outstanding_cmds[index];
2594 if (!sp)
2595 continue;
2596 sfcp = sp->fcport;
2597 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2598 continue;
2599
2600 set_bit(ISP_ABORT_NEEDED,
2601 &ha->dpc_flags);
2602 break;
2603 }
2604 spin_unlock_irqrestore(&ha->hardware_lock,
2605 cpu_flags);
2606 }
2607 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2608 start_dpc++;
2609 }
2610
2611 /* if the loop has been down for 4 minutes, reinit adapter */
2612 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2613 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2614 "restarting queues.\n",
2615 ha->host_no));
2616
2617 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2618 start_dpc++;
2619
2620 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2621 DEBUG(printk("scsi(%ld): Loop down - "
2622 "aborting ISP.\n",
2623 ha->host_no));
2624 qla_printk(KERN_WARNING, ha,
2625 "Loop down - aborting ISP.\n");
2626
2627 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2628 }
2629 }
2630 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2631 ha->host_no,
2632 atomic_read(&ha->loop_down_timer)));
2633 }
2634
2635 /* Check if beacon LED needs to be blinked */
2636 if (ha->beacon_blink_led == 1) {
2637 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2638 start_dpc++;
2639 }
2640
2641 /* Schedule the DPC routine if needed */
2642 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2643 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2644 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2645 start_dpc ||
2646 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2647 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2648 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2649 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2650 qla2xxx_wake_dpc(pha);
2651
2652 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2653 }
2654
2655 /* Firmware interface routines. */
2656
2657 #define FW_BLOBS 6
2658 #define FW_ISP21XX 0
2659 #define FW_ISP22XX 1
2660 #define FW_ISP2300 2
2661 #define FW_ISP2322 3
2662 #define FW_ISP24XX 4
2663 #define FW_ISP25XX 5
2664
2665 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2666 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2667 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2668 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2669 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2670 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2671
2672 static DECLARE_MUTEX(qla_fw_lock);
2673
2674 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2675 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2676 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2677 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2678 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2679 { .name = FW_FILE_ISP24XX, },
2680 { .name = FW_FILE_ISP25XX, },
2681 };
2682
2683 struct fw_blob *
2684 qla2x00_request_firmware(scsi_qla_host_t *ha)
2685 {
2686 struct fw_blob *blob;
2687
2688 blob = NULL;
2689 if (IS_QLA2100(ha)) {
2690 blob = &qla_fw_blobs[FW_ISP21XX];
2691 } else if (IS_QLA2200(ha)) {
2692 blob = &qla_fw_blobs[FW_ISP22XX];
2693 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2694 blob = &qla_fw_blobs[FW_ISP2300];
2695 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2696 blob = &qla_fw_blobs[FW_ISP2322];
2697 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2698 blob = &qla_fw_blobs[FW_ISP24XX];
2699 } else if (IS_QLA25XX(ha)) {
2700 blob = &qla_fw_blobs[FW_ISP25XX];
2701 }
2702
2703 down(&qla_fw_lock);
2704 if (blob->fw)
2705 goto out;
2706
2707 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2708 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2709 "(%s).\n", ha->host_no, blob->name));
2710 blob->fw = NULL;
2711 blob = NULL;
2712 goto out;
2713 }
2714
2715 out:
2716 up(&qla_fw_lock);
2717 return blob;
2718 }
2719
2720 static void
2721 qla2x00_release_firmware(void)
2722 {
2723 int idx;
2724
2725 down(&qla_fw_lock);
2726 for (idx = 0; idx < FW_BLOBS; idx++)
2727 if (qla_fw_blobs[idx].fw)
2728 release_firmware(qla_fw_blobs[idx].fw);
2729 up(&qla_fw_lock);
2730 }
2731
2732 static pci_ers_result_t
2733 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2734 {
2735 switch (state) {
2736 case pci_channel_io_normal:
2737 return PCI_ERS_RESULT_CAN_RECOVER;
2738 case pci_channel_io_frozen:
2739 pci_disable_device(pdev);
2740 return PCI_ERS_RESULT_NEED_RESET;
2741 case pci_channel_io_perm_failure:
2742 qla2x00_remove_one(pdev);
2743 return PCI_ERS_RESULT_DISCONNECT;
2744 }
2745 return PCI_ERS_RESULT_NEED_RESET;
2746 }
2747
2748 static pci_ers_result_t
2749 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2750 {
2751 int risc_paused = 0;
2752 uint32_t stat;
2753 unsigned long flags;
2754 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2755 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2756 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2757
2758 spin_lock_irqsave(&ha->hardware_lock, flags);
2759 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2760 stat = RD_REG_DWORD(&reg->hccr);
2761 if (stat & HCCR_RISC_PAUSE)
2762 risc_paused = 1;
2763 } else if (IS_QLA23XX(ha)) {
2764 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2765 if (stat & HSR_RISC_PAUSED)
2766 risc_paused = 1;
2767 } else if (IS_FWI2_CAPABLE(ha)) {
2768 stat = RD_REG_DWORD(&reg24->host_status);
2769 if (stat & HSRX_RISC_PAUSED)
2770 risc_paused = 1;
2771 }
2772 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2773
2774 if (risc_paused) {
2775 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2776 "Dumping firmware!\n");
2777 ha->isp_ops->fw_dump(ha, 0);
2778
2779 return PCI_ERS_RESULT_NEED_RESET;
2780 } else
2781 return PCI_ERS_RESULT_RECOVERED;
2782 }
2783
2784 static pci_ers_result_t
2785 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2786 {
2787 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2788 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2789 int rc;
2790
2791 if (ha->mem_only)
2792 rc = pci_enable_device_mem(pdev);
2793 else
2794 rc = pci_enable_device(pdev);
2795
2796 if (rc) {
2797 qla_printk(KERN_WARNING, ha,
2798 "Can't re-enable PCI device after reset.\n");
2799
2800 return ret;
2801 }
2802 pci_set_master(pdev);
2803
2804 if (ha->isp_ops->pci_config(ha))
2805 return ret;
2806
2807 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2808 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2809 ret = PCI_ERS_RESULT_RECOVERED;
2810 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2811
2812 return ret;
2813 }
2814
2815 static void
2816 qla2xxx_pci_resume(struct pci_dev *pdev)
2817 {
2818 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2819 int ret;
2820
2821 ret = qla2x00_wait_for_hba_online(ha);
2822 if (ret != QLA_SUCCESS) {
2823 qla_printk(KERN_ERR, ha,
2824 "the device failed to resume I/O "
2825 "from slot/link_reset");
2826 }
2827 pci_cleanup_aer_uncorrect_error_status(pdev);
2828 }
2829
2830 static struct pci_error_handlers qla2xxx_err_handler = {
2831 .error_detected = qla2xxx_pci_error_detected,
2832 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2833 .slot_reset = qla2xxx_pci_slot_reset,
2834 .resume = qla2xxx_pci_resume,
2835 };
2836
2837 static struct pci_device_id qla2xxx_pci_tbl[] = {
2838 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2839 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2840 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2841 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2842 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2843 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2844 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2845 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2846 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2847 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2848 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2849 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2850 { 0 },
2851 };
2852 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2853
2854 static struct pci_driver qla2xxx_pci_driver = {
2855 .name = QLA2XXX_DRIVER_NAME,
2856 .driver = {
2857 .owner = THIS_MODULE,
2858 },
2859 .id_table = qla2xxx_pci_tbl,
2860 .probe = qla2x00_probe_one,
2861 .remove = qla2x00_remove_one,
2862 .err_handler = &qla2xxx_err_handler,
2863 };
2864
2865 /**
2866 * qla2x00_module_init - Module initialization.
2867 **/
2868 static int __init
2869 qla2x00_module_init(void)
2870 {
2871 int ret = 0;
2872
2873 /* Allocate cache for SRBs. */
2874 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2875 SLAB_HWCACHE_ALIGN, NULL);
2876 if (srb_cachep == NULL) {
2877 printk(KERN_ERR
2878 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2879 return -ENOMEM;
2880 }
2881
2882 /* Derive version string. */
2883 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2884 if (ql2xextended_error_logging)
2885 strcat(qla2x00_version_str, "-debug");
2886
2887 qla2xxx_transport_template =
2888 fc_attach_transport(&qla2xxx_transport_functions);
2889 if (!qla2xxx_transport_template) {
2890 kmem_cache_destroy(srb_cachep);
2891 return -ENODEV;
2892 }
2893 qla2xxx_transport_vport_template =
2894 fc_attach_transport(&qla2xxx_transport_vport_functions);
2895 if (!qla2xxx_transport_vport_template) {
2896 kmem_cache_destroy(srb_cachep);
2897 fc_release_transport(qla2xxx_transport_template);
2898 return -ENODEV;
2899 }
2900
2901 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2902 ret = pci_register_driver(&qla2xxx_pci_driver);
2903 if (ret) {
2904 kmem_cache_destroy(srb_cachep);
2905 fc_release_transport(qla2xxx_transport_template);
2906 fc_release_transport(qla2xxx_transport_vport_template);
2907 }
2908 return ret;
2909 }
2910
2911 /**
2912 * qla2x00_module_exit - Module cleanup.
2913 **/
2914 static void __exit
2915 qla2x00_module_exit(void)
2916 {
2917 pci_unregister_driver(&qla2xxx_pci_driver);
2918 qla2x00_release_firmware();
2919 kmem_cache_destroy(srb_cachep);
2920 fc_release_transport(qla2xxx_transport_template);
2921 fc_release_transport(qla2xxx_transport_vport_template);
2922 }
2923
2924 module_init(qla2x00_module_init);
2925 module_exit(qla2x00_module_exit);
2926
2927 MODULE_AUTHOR("QLogic Corporation");
2928 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2929 MODULE_LICENSE("GPL");
2930 MODULE_VERSION(QLA2XXX_VERSION);
2931 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2932 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2933 MODULE_FIRMWARE(FW_FILE_ISP2300);
2934 MODULE_FIRMWARE(FW_FILE_ISP2322);
2935 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2936 MODULE_FIRMWARE(FW_FILE_ISP25XX);
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