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[SCSI] qla2xxx: Correct infinite-login-retry issue.
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 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 /*
30 * Ioctl related information.
31 */
32 int num_hosts;
33 int ql2xlogintimeout = 20;
34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
35 MODULE_PARM_DESC(ql2xlogintimeout,
36 "Login timeout value in seconds.");
37
38 int qlport_down_retry;
39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
40 MODULE_PARM_DESC(qlport_down_retry,
41 "Maximum number of command retries to a port that returns "
42 "a PORT-DOWN status.");
43
44 int ql2xplogiabsentdevice;
45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
47 "Option to enable PLOGI to devices that are not present after "
48 "a Fabric scan. This is needed for several broken switches. "
49 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
50
51 int ql2xloginretrycount = 0;
52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
53 MODULE_PARM_DESC(ql2xloginretrycount,
54 "Specify an alternate value for the NVRAM login retry count.");
55
56 int ql2xallocfwdump = 1;
57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
58 MODULE_PARM_DESC(ql2xallocfwdump,
59 "Option to enable allocation of memory for a firmware dump "
60 "during HBA initialization. Memory allocation requirements "
61 "vary by ISP type. Default is 1 - allocate memory.");
62
63 int ql2xextended_error_logging;
64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xextended_error_logging,
66 "Option to enable extended error logging, "
67 "Default is 0 - no logging. 1 - log errors.");
68
69 static void qla2x00_free_device(scsi_qla_host_t *);
70
71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
72
73 int ql2xfdmienable;
74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
75 MODULE_PARM_DESC(ql2xfdmienable,
76 "Enables FDMI registratons "
77 "Default is 0 - no FDMI. 1 - perfom FDMI.");
78
79 #define MAX_Q_DEPTH 32
80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xmaxqdepth,
83 "Maximum queue depth to report for target devices.");
84
85 int ql2xqfullrampup = 120;
86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xqfullrampup,
88 "Number of seconds to wait to begin to ramp-up the queue "
89 "depth for a device after a queue-full condition has been "
90 "detected. Default is 120 seconds.");
91
92 /*
93 * SCSI host template entry points
94 */
95 static int qla2xxx_slave_configure(struct scsi_device * device);
96 static int qla2xxx_slave_alloc(struct scsi_device *);
97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
98 static void qla2xxx_scan_start(struct Scsi_Host *);
99 static void qla2xxx_slave_destroy(struct scsi_device *);
100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
103 void (*fn)(struct scsi_cmnd *));
104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
108 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
110
111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
112 static int qla2x00_change_queue_type(struct scsi_device *, int);
113
114 struct scsi_host_template qla2x00_driver_template = {
115 .module = THIS_MODULE,
116 .name = QLA2XXX_DRIVER_NAME,
117 .queuecommand = qla2x00_queuecommand,
118
119 .eh_abort_handler = qla2xxx_eh_abort,
120 .eh_device_reset_handler = qla2xxx_eh_device_reset,
121 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
122 .eh_host_reset_handler = qla2xxx_eh_host_reset,
123
124 .slave_configure = qla2xxx_slave_configure,
125
126 .slave_alloc = qla2xxx_slave_alloc,
127 .slave_destroy = qla2xxx_slave_destroy,
128 .scan_finished = qla2xxx_scan_finished,
129 .scan_start = qla2xxx_scan_start,
130 .change_queue_depth = qla2x00_change_queue_depth,
131 .change_queue_type = qla2x00_change_queue_type,
132 .this_id = -1,
133 .cmd_per_lun = 3,
134 .use_clustering = ENABLE_CLUSTERING,
135 .sg_tablesize = SG_ALL,
136
137 /*
138 * The RISC allows for each command to transfer (2^32-1) bytes of data,
139 * which equates to 0x800000 sectors.
140 */
141 .max_sectors = 0xFFFF,
142 .shost_attrs = qla2x00_host_attrs,
143 };
144
145 struct scsi_host_template qla24xx_driver_template = {
146 .module = THIS_MODULE,
147 .name = QLA2XXX_DRIVER_NAME,
148 .queuecommand = qla24xx_queuecommand,
149
150 .eh_abort_handler = qla2xxx_eh_abort,
151 .eh_device_reset_handler = qla2xxx_eh_device_reset,
152 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
153 .eh_host_reset_handler = qla2xxx_eh_host_reset,
154
155 .slave_configure = qla2xxx_slave_configure,
156
157 .slave_alloc = qla2xxx_slave_alloc,
158 .slave_destroy = qla2xxx_slave_destroy,
159 .scan_finished = qla2xxx_scan_finished,
160 .scan_start = qla2xxx_scan_start,
161 .change_queue_depth = qla2x00_change_queue_depth,
162 .change_queue_type = qla2x00_change_queue_type,
163 .this_id = -1,
164 .cmd_per_lun = 3,
165 .use_clustering = ENABLE_CLUSTERING,
166 .sg_tablesize = SG_ALL,
167
168 .max_sectors = 0xFFFF,
169 .shost_attrs = qla2x00_host_attrs,
170 };
171
172 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
173 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
174
175 /* TODO Convert to inlines
176 *
177 * Timer routines
178 */
179
180 void qla2x00_timer(scsi_qla_host_t *);
181
182 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
183 void *, unsigned long);
184 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
185 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
186
187 __inline__ void
188 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
189 {
190 init_timer(&ha->timer);
191 ha->timer.expires = jiffies + interval * HZ;
192 ha->timer.data = (unsigned long)ha;
193 ha->timer.function = (void (*)(unsigned long))func;
194 add_timer(&ha->timer);
195 ha->timer_active = 1;
196 }
197
198 static inline void
199 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
200 {
201 mod_timer(&ha->timer, jiffies + interval * HZ);
202 }
203
204 __inline__ void
205 qla2x00_stop_timer(scsi_qla_host_t *ha)
206 {
207 del_timer_sync(&ha->timer);
208 ha->timer_active = 0;
209 }
210
211 static int qla2x00_do_dpc(void *data);
212
213 static void qla2x00_rst_aen(scsi_qla_host_t *);
214
215 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
216 void qla2x00_mem_free(scsi_qla_host_t *ha);
217 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
218 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
219 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
220 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
221
222 /* -------------------------------------------------------------------------- */
223
224 static char *
225 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
226 {
227 static char *pci_bus_modes[] = {
228 "33", "66", "100", "133",
229 };
230 uint16_t pci_bus;
231
232 strcpy(str, "PCI");
233 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
234 if (pci_bus) {
235 strcat(str, "-X (");
236 strcat(str, pci_bus_modes[pci_bus]);
237 } else {
238 pci_bus = (ha->pci_attr & BIT_8) >> 8;
239 strcat(str, " (");
240 strcat(str, pci_bus_modes[pci_bus]);
241 }
242 strcat(str, " MHz)");
243
244 return (str);
245 }
246
247 static char *
248 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
249 {
250 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
251 uint32_t pci_bus;
252 int pcie_reg;
253
254 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
255 if (pcie_reg) {
256 char lwstr[6];
257 uint16_t pcie_lstat, lspeed, lwidth;
258
259 pcie_reg += 0x12;
260 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
261 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
262 lwidth = (pcie_lstat &
263 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
264
265 strcpy(str, "PCIe (");
266 if (lspeed == 1)
267 strcat(str, "2.5Gb/s ");
268 else if (lspeed == 2)
269 strcat(str, "5.0Gb/s ");
270 else
271 strcat(str, "<unknown> ");
272 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
273 strcat(str, lwstr);
274
275 return str;
276 }
277
278 strcpy(str, "PCI");
279 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
280 if (pci_bus == 0 || pci_bus == 8) {
281 strcat(str, " (");
282 strcat(str, pci_bus_modes[pci_bus >> 3]);
283 } else {
284 strcat(str, "-X ");
285 if (pci_bus & BIT_2)
286 strcat(str, "Mode 2");
287 else
288 strcat(str, "Mode 1");
289 strcat(str, " (");
290 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
291 }
292 strcat(str, " MHz)");
293
294 return str;
295 }
296
297 static char *
298 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
299 {
300 char un_str[10];
301
302 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
303 ha->fw_minor_version,
304 ha->fw_subminor_version);
305
306 if (ha->fw_attributes & BIT_9) {
307 strcat(str, "FLX");
308 return (str);
309 }
310
311 switch (ha->fw_attributes & 0xFF) {
312 case 0x7:
313 strcat(str, "EF");
314 break;
315 case 0x17:
316 strcat(str, "TP");
317 break;
318 case 0x37:
319 strcat(str, "IP");
320 break;
321 case 0x77:
322 strcat(str, "VI");
323 break;
324 default:
325 sprintf(un_str, "(%x)", ha->fw_attributes);
326 strcat(str, un_str);
327 break;
328 }
329 if (ha->fw_attributes & 0x100)
330 strcat(str, "X");
331
332 return (str);
333 }
334
335 static char *
336 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
337 {
338 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
339 ha->fw_minor_version,
340 ha->fw_subminor_version);
341
342 if (ha->fw_attributes & BIT_0)
343 strcat(str, "[Class 2] ");
344 if (ha->fw_attributes & BIT_1)
345 strcat(str, "[IP] ");
346 if (ha->fw_attributes & BIT_2)
347 strcat(str, "[Multi-ID] ");
348 if (ha->fw_attributes & BIT_3)
349 strcat(str, "[SB-2] ");
350 if (ha->fw_attributes & BIT_4)
351 strcat(str, "[T10 CRC] ");
352 if (ha->fw_attributes & BIT_5)
353 strcat(str, "[VI] ");
354 if (ha->fw_attributes & BIT_13)
355 strcat(str, "[Experimental]");
356 return str;
357 }
358
359 static inline srb_t *
360 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
361 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
362 {
363 srb_t *sp;
364
365 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
366 if (!sp)
367 return sp;
368
369 sp->ha = ha;
370 sp->fcport = fcport;
371 sp->cmd = cmd;
372 sp->flags = 0;
373 CMD_SP(cmd) = (void *)sp;
374 cmd->scsi_done = done;
375
376 return sp;
377 }
378
379 static int
380 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
381 {
382 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
383 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
384 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
385 srb_t *sp;
386 int rval;
387
388 if (unlikely(pci_channel_offline(ha->pdev))) {
389 cmd->result = DID_REQUEUE << 16;
390 goto qc_fail_command;
391 }
392
393 rval = fc_remote_port_chkready(rport);
394 if (rval) {
395 cmd->result = rval;
396 goto qc_fail_command;
397 }
398
399 /* Close window on fcport/rport state-transitioning. */
400 if (!*(fc_port_t **)rport->dd_data) {
401 cmd->result = DID_IMM_RETRY << 16;
402 goto qc_fail_command;
403 }
404
405 if (atomic_read(&fcport->state) != FCS_ONLINE) {
406 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
407 atomic_read(&ha->loop_state) == LOOP_DEAD) {
408 cmd->result = DID_NO_CONNECT << 16;
409 goto qc_fail_command;
410 }
411 goto qc_host_busy;
412 }
413
414 spin_unlock_irq(ha->host->host_lock);
415
416 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
417 if (!sp)
418 goto qc_host_busy_lock;
419
420 rval = qla2x00_start_scsi(sp);
421 if (rval != QLA_SUCCESS)
422 goto qc_host_busy_free_sp;
423
424 spin_lock_irq(ha->host->host_lock);
425
426 return 0;
427
428 qc_host_busy_free_sp:
429 qla2x00_sp_free_dma(ha, sp);
430 mempool_free(sp, ha->srb_mempool);
431
432 qc_host_busy_lock:
433 spin_lock_irq(ha->host->host_lock);
434
435 qc_host_busy:
436 return SCSI_MLQUEUE_HOST_BUSY;
437
438 qc_fail_command:
439 done(cmd);
440
441 return 0;
442 }
443
444
445 static int
446 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
447 {
448 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
449 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
450 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
451 srb_t *sp;
452 int rval;
453 scsi_qla_host_t *pha = to_qla_parent(ha);
454
455 if (unlikely(pci_channel_offline(ha->pdev))) {
456 cmd->result = DID_REQUEUE << 16;
457 goto qc24_fail_command;
458 }
459
460 rval = fc_remote_port_chkready(rport);
461 if (rval) {
462 cmd->result = rval;
463 goto qc24_fail_command;
464 }
465
466 /* Close window on fcport/rport state-transitioning. */
467 if (!*(fc_port_t **)rport->dd_data) {
468 cmd->result = DID_IMM_RETRY << 16;
469 goto qc24_fail_command;
470 }
471
472 if (atomic_read(&fcport->state) != FCS_ONLINE) {
473 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
474 atomic_read(&pha->loop_state) == LOOP_DEAD) {
475 cmd->result = DID_NO_CONNECT << 16;
476 goto qc24_fail_command;
477 }
478 goto qc24_host_busy;
479 }
480
481 spin_unlock_irq(ha->host->host_lock);
482
483 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
484 if (!sp)
485 goto qc24_host_busy_lock;
486
487 rval = qla24xx_start_scsi(sp);
488 if (rval != QLA_SUCCESS)
489 goto qc24_host_busy_free_sp;
490
491 spin_lock_irq(ha->host->host_lock);
492
493 return 0;
494
495 qc24_host_busy_free_sp:
496 qla2x00_sp_free_dma(pha, sp);
497 mempool_free(sp, pha->srb_mempool);
498
499 qc24_host_busy_lock:
500 spin_lock_irq(ha->host->host_lock);
501
502 qc24_host_busy:
503 return SCSI_MLQUEUE_HOST_BUSY;
504
505 qc24_fail_command:
506 done(cmd);
507
508 return 0;
509 }
510
511
512 /*
513 * qla2x00_eh_wait_on_command
514 * Waits for the command to be returned by the Firmware for some
515 * max time.
516 *
517 * Input:
518 * ha = actual ha whose done queue will contain the command
519 * returned by firmware.
520 * cmd = Scsi Command to wait on.
521 * flag = Abort/Reset(Bus or Device Reset)
522 *
523 * Return:
524 * Not Found : 0
525 * Found : 1
526 */
527 static int
528 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
529 {
530 #define ABORT_POLLING_PERIOD 1000
531 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
532 unsigned long wait_iter = ABORT_WAIT_ITER;
533 int ret = QLA_SUCCESS;
534
535 while (CMD_SP(cmd)) {
536 msleep(ABORT_POLLING_PERIOD);
537
538 if (--wait_iter)
539 break;
540 }
541 if (CMD_SP(cmd))
542 ret = QLA_FUNCTION_FAILED;
543
544 return ret;
545 }
546
547 /*
548 * qla2x00_wait_for_hba_online
549 * Wait till the HBA is online after going through
550 * <= MAX_RETRIES_OF_ISP_ABORT or
551 * finally HBA is disabled ie marked offline
552 *
553 * Input:
554 * ha - pointer to host adapter structure
555 *
556 * Note:
557 * Does context switching-Release SPIN_LOCK
558 * (if any) before calling this routine.
559 *
560 * Return:
561 * Success (Adapter is online) : 0
562 * Failed (Adapter is offline/disabled) : 1
563 */
564 int
565 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
566 {
567 int return_status;
568 unsigned long wait_online;
569 scsi_qla_host_t *pha = to_qla_parent(ha);
570
571 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
572 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
573 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
574 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
575 pha->dpc_active) && time_before(jiffies, wait_online)) {
576
577 msleep(1000);
578 }
579 if (pha->flags.online)
580 return_status = QLA_SUCCESS;
581 else
582 return_status = QLA_FUNCTION_FAILED;
583
584 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
585
586 return (return_status);
587 }
588
589 /*
590 * qla2x00_wait_for_loop_ready
591 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
592 * to be in LOOP_READY state.
593 * Input:
594 * ha - pointer to host adapter structure
595 *
596 * Note:
597 * Does context switching-Release SPIN_LOCK
598 * (if any) before calling this routine.
599 *
600 *
601 * Return:
602 * Success (LOOP_READY) : 0
603 * Failed (LOOP_NOT_READY) : 1
604 */
605 static inline int
606 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
607 {
608 int return_status = QLA_SUCCESS;
609 unsigned long loop_timeout ;
610 scsi_qla_host_t *pha = to_qla_parent(ha);
611
612 /* wait for 5 min at the max for loop to be ready */
613 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
614
615 while ((!atomic_read(&pha->loop_down_timer) &&
616 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
617 atomic_read(&pha->loop_state) != LOOP_READY) {
618 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
619 return_status = QLA_FUNCTION_FAILED;
620 break;
621 }
622 msleep(1000);
623 if (time_after_eq(jiffies, loop_timeout)) {
624 return_status = QLA_FUNCTION_FAILED;
625 break;
626 }
627 }
628 return (return_status);
629 }
630
631 static void
632 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
633 {
634 struct Scsi_Host *shost = cmnd->device->host;
635 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
636 unsigned long flags;
637
638 spin_lock_irqsave(shost->host_lock, flags);
639 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
640 spin_unlock_irqrestore(shost->host_lock, flags);
641 msleep(1000);
642 spin_lock_irqsave(shost->host_lock, flags);
643 }
644 spin_unlock_irqrestore(shost->host_lock, flags);
645 return;
646 }
647
648 /**************************************************************************
649 * qla2xxx_eh_abort
650 *
651 * Description:
652 * The abort function will abort the specified command.
653 *
654 * Input:
655 * cmd = Linux SCSI command packet to be aborted.
656 *
657 * Returns:
658 * Either SUCCESS or FAILED.
659 *
660 * Note:
661 * Only return FAILED if command not returned by firmware.
662 **************************************************************************/
663 static int
664 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
665 {
666 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
667 srb_t *sp;
668 int ret, i;
669 unsigned int id, lun;
670 unsigned long serial;
671 unsigned long flags;
672 int wait = 0;
673 scsi_qla_host_t *pha = to_qla_parent(ha);
674
675 qla2x00_block_error_handler(cmd);
676
677 if (!CMD_SP(cmd))
678 return SUCCESS;
679
680 ret = SUCCESS;
681
682 id = cmd->device->id;
683 lun = cmd->device->lun;
684 serial = cmd->serial_number;
685
686 /* Check active list for command command. */
687 spin_lock_irqsave(&pha->hardware_lock, flags);
688 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
689 sp = pha->outstanding_cmds[i];
690
691 if (sp == NULL)
692 continue;
693
694 if (sp->cmd != cmd)
695 continue;
696
697 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
698 __func__, ha->host_no, sp, serial));
699 DEBUG3(qla2x00_print_scsi_cmd(cmd));
700
701 spin_unlock_irqrestore(&pha->hardware_lock, flags);
702 if (ha->isp_ops->abort_command(ha, sp)) {
703 DEBUG2(printk("%s(%ld): abort_command "
704 "mbx failed.\n", __func__, ha->host_no));
705 } else {
706 DEBUG3(printk("%s(%ld): abort_command "
707 "mbx success.\n", __func__, ha->host_no));
708 wait = 1;
709 }
710 spin_lock_irqsave(&pha->hardware_lock, flags);
711
712 break;
713 }
714 spin_unlock_irqrestore(&pha->hardware_lock, flags);
715
716 /* Wait for the command to be returned. */
717 if (wait) {
718 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
719 qla_printk(KERN_ERR, ha,
720 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
721 "%x.\n", ha->host_no, id, lun, serial, ret);
722 ret = FAILED;
723 }
724 }
725
726 qla_printk(KERN_INFO, ha,
727 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
728 ha->host_no, id, lun, wait, serial, ret);
729
730 return ret;
731 }
732
733 /**************************************************************************
734 * qla2x00_eh_wait_for_pending_target_commands
735 *
736 * Description:
737 * Waits for all the commands to come back from the specified target.
738 *
739 * Input:
740 * ha - pointer to scsi_qla_host structure.
741 * t - target
742 * Returns:
743 * Either SUCCESS or FAILED.
744 *
745 * Note:
746 **************************************************************************/
747 static int
748 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
749 {
750 int cnt;
751 int status;
752 srb_t *sp;
753 struct scsi_cmnd *cmd;
754 unsigned long flags;
755 scsi_qla_host_t *pha = to_qla_parent(ha);
756
757 status = 0;
758
759 /*
760 * Waiting for all commands for the designated target in the active
761 * array
762 */
763 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
764 spin_lock_irqsave(&pha->hardware_lock, flags);
765 sp = pha->outstanding_cmds[cnt];
766 if (sp) {
767 cmd = sp->cmd;
768 spin_unlock_irqrestore(&pha->hardware_lock, flags);
769 if (cmd->device->id == t &&
770 ha->vp_idx == sp->ha->vp_idx) {
771 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
772 status = 1;
773 break;
774 }
775 }
776 } else {
777 spin_unlock_irqrestore(&pha->hardware_lock, flags);
778 }
779 }
780 return (status);
781 }
782
783
784 /**************************************************************************
785 * qla2xxx_eh_device_reset
786 *
787 * Description:
788 * The device reset function will reset the target and abort any
789 * executing commands.
790 *
791 * NOTE: The use of SP is undefined within this context. Do *NOT*
792 * attempt to use this value, even if you determine it is
793 * non-null.
794 *
795 * Input:
796 * cmd = Linux SCSI command packet of the command that cause the
797 * bus device reset.
798 *
799 * Returns:
800 * SUCCESS/FAILURE (defined as macro in scsi.h).
801 *
802 **************************************************************************/
803 static int
804 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
805 {
806 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
807 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
808 int ret = FAILED;
809 unsigned int id, lun;
810 unsigned long serial;
811
812 qla2x00_block_error_handler(cmd);
813
814 id = cmd->device->id;
815 lun = cmd->device->lun;
816 serial = cmd->serial_number;
817
818 if (!fcport)
819 return ret;
820
821 qla_printk(KERN_INFO, ha,
822 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
823
824 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
825 goto eh_dev_reset_done;
826
827 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
828 if (qla2x00_device_reset(ha, fcport) == 0)
829 ret = SUCCESS;
830
831 #if defined(LOGOUT_AFTER_DEVICE_RESET)
832 if (ret == SUCCESS) {
833 if (fcport->flags & FC_FABRIC_DEVICE) {
834 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
835 qla2x00_mark_device_lost(ha, fcport, 0, 0);
836 }
837 }
838 #endif
839 } else {
840 DEBUG2(printk(KERN_INFO
841 "%s failed: loop not ready\n",__func__));
842 }
843
844 if (ret == FAILED) {
845 DEBUG3(printk("%s(%ld): device reset failed\n",
846 __func__, ha->host_no));
847 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
848 __func__);
849
850 goto eh_dev_reset_done;
851 }
852
853 /* Flush outstanding commands. */
854 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
855 ret = FAILED;
856 if (ret == FAILED) {
857 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
858 __func__, ha->host_no));
859 qla_printk(KERN_INFO, ha,
860 "%s: failed while waiting for commands\n", __func__);
861 } else
862 qla_printk(KERN_INFO, ha,
863 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
864 id, lun);
865 eh_dev_reset_done:
866 return ret;
867 }
868
869 /**************************************************************************
870 * qla2x00_eh_wait_for_pending_commands
871 *
872 * Description:
873 * Waits for all the commands to come back from the specified host.
874 *
875 * Input:
876 * ha - pointer to scsi_qla_host structure.
877 *
878 * Returns:
879 * 1 : SUCCESS
880 * 0 : FAILED
881 *
882 * Note:
883 **************************************************************************/
884 static int
885 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
886 {
887 int cnt;
888 int status;
889 srb_t *sp;
890 struct scsi_cmnd *cmd;
891 unsigned long flags;
892
893 status = 1;
894
895 /*
896 * Waiting for all commands for the designated target in the active
897 * array
898 */
899 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
900 spin_lock_irqsave(&ha->hardware_lock, flags);
901 sp = ha->outstanding_cmds[cnt];
902 if (sp) {
903 cmd = sp->cmd;
904 spin_unlock_irqrestore(&ha->hardware_lock, flags);
905 status = qla2x00_eh_wait_on_command(ha, cmd);
906 if (status == 0)
907 break;
908 }
909 else {
910 spin_unlock_irqrestore(&ha->hardware_lock, flags);
911 }
912 }
913 return (status);
914 }
915
916
917 /**************************************************************************
918 * qla2xxx_eh_bus_reset
919 *
920 * Description:
921 * The bus reset function will reset the bus and abort any executing
922 * commands.
923 *
924 * Input:
925 * cmd = Linux SCSI command packet of the command that cause the
926 * bus reset.
927 *
928 * Returns:
929 * SUCCESS/FAILURE (defined as macro in scsi.h).
930 *
931 **************************************************************************/
932 static int
933 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
934 {
935 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
936 scsi_qla_host_t *pha = to_qla_parent(ha);
937 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
938 int ret = FAILED;
939 unsigned int id, lun;
940 unsigned long serial;
941
942 qla2x00_block_error_handler(cmd);
943
944 id = cmd->device->id;
945 lun = cmd->device->lun;
946 serial = cmd->serial_number;
947
948 if (!fcport)
949 return ret;
950
951 qla_printk(KERN_INFO, ha,
952 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
953
954 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
955 DEBUG2(printk("%s failed:board disabled\n",__func__));
956 goto eh_bus_reset_done;
957 }
958
959 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
960 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
961 ret = SUCCESS;
962 }
963 if (ret == FAILED)
964 goto eh_bus_reset_done;
965
966 /* Flush outstanding commands. */
967 if (!qla2x00_eh_wait_for_pending_commands(pha))
968 ret = FAILED;
969
970 eh_bus_reset_done:
971 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
972 (ret == FAILED) ? "failed" : "succeded");
973
974 return ret;
975 }
976
977 /**************************************************************************
978 * qla2xxx_eh_host_reset
979 *
980 * Description:
981 * The reset function will reset the Adapter.
982 *
983 * Input:
984 * cmd = Linux SCSI command packet of the command that cause the
985 * adapter reset.
986 *
987 * Returns:
988 * Either SUCCESS or FAILED.
989 *
990 * Note:
991 **************************************************************************/
992 static int
993 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
994 {
995 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
996 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
997 int ret = FAILED;
998 unsigned int id, lun;
999 unsigned long serial;
1000 scsi_qla_host_t *pha = to_qla_parent(ha);
1001
1002 qla2x00_block_error_handler(cmd);
1003
1004 id = cmd->device->id;
1005 lun = cmd->device->lun;
1006 serial = cmd->serial_number;
1007
1008 if (!fcport)
1009 return ret;
1010
1011 qla_printk(KERN_INFO, ha,
1012 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1013
1014 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1015 goto eh_host_reset_lock;
1016
1017 /*
1018 * Fixme-may be dpc thread is active and processing
1019 * loop_resync,so wait a while for it to
1020 * be completed and then issue big hammer.Otherwise
1021 * it may cause I/O failure as big hammer marks the
1022 * devices as lost kicking of the port_down_timer
1023 * while dpc is stuck for the mailbox to complete.
1024 */
1025 qla2x00_wait_for_loop_ready(ha);
1026 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1027 if (qla2x00_abort_isp(pha)) {
1028 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1029 /* failed. schedule dpc to try */
1030 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1031
1032 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1033 goto eh_host_reset_lock;
1034 }
1035 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1036
1037 /* Waiting for our command in done_queue to be returned to OS.*/
1038 if (qla2x00_eh_wait_for_pending_commands(pha))
1039 ret = SUCCESS;
1040
1041 if (ha->parent)
1042 qla2x00_vp_abort_isp(ha);
1043
1044 eh_host_reset_lock:
1045 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1046 (ret == FAILED) ? "failed" : "succeded");
1047
1048 return ret;
1049 }
1050
1051 /*
1052 * qla2x00_loop_reset
1053 * Issue loop reset.
1054 *
1055 * Input:
1056 * ha = adapter block pointer.
1057 *
1058 * Returns:
1059 * 0 = success
1060 */
1061 static int
1062 qla2x00_loop_reset(scsi_qla_host_t *ha)
1063 {
1064 int ret;
1065 struct fc_port *fcport;
1066
1067 if (ha->flags.enable_lip_full_login) {
1068 ret = qla2x00_full_login_lip(ha);
1069 if (ret != QLA_SUCCESS) {
1070 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1071 "full_login_lip=%d.\n", __func__, ha->host_no,
1072 ret));
1073 }
1074 atomic_set(&ha->loop_state, LOOP_DOWN);
1075 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1076 qla2x00_mark_all_devices_lost(ha, 0);
1077 qla2x00_wait_for_loop_ready(ha);
1078 }
1079
1080 if (ha->flags.enable_lip_reset) {
1081 ret = qla2x00_lip_reset(ha);
1082 if (ret != QLA_SUCCESS) {
1083 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1084 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1085 }
1086 qla2x00_wait_for_loop_ready(ha);
1087 }
1088
1089 if (ha->flags.enable_target_reset) {
1090 list_for_each_entry(fcport, &ha->fcports, list) {
1091 if (fcport->port_type != FCT_TARGET)
1092 continue;
1093
1094 ret = qla2x00_device_reset(ha, fcport);
1095 if (ret != QLA_SUCCESS) {
1096 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1097 "target_reset=%d d_id=%x.\n", __func__,
1098 ha->host_no, ret, fcport->d_id.b24));
1099 }
1100 }
1101 }
1102
1103 /* Issue marker command only when we are going to start the I/O */
1104 ha->marker_needed = 1;
1105
1106 return QLA_SUCCESS;
1107 }
1108
1109 /*
1110 * qla2x00_device_reset
1111 * Issue bus device reset message to the target.
1112 *
1113 * Input:
1114 * ha = adapter block pointer.
1115 * t = SCSI ID.
1116 * TARGET_QUEUE_LOCK must be released.
1117 * ADAPTER_STATE_LOCK must be released.
1118 *
1119 * Context:
1120 * Kernel context.
1121 */
1122 static int
1123 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1124 {
1125 /* Abort Target command will clear Reservation */
1126 return ha->isp_ops->abort_target(reset_fcport);
1127 }
1128
1129 static int
1130 qla2xxx_slave_alloc(struct scsi_device *sdev)
1131 {
1132 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1133
1134 if (!rport || fc_remote_port_chkready(rport))
1135 return -ENXIO;
1136
1137 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1138
1139 return 0;
1140 }
1141
1142 static int
1143 qla2xxx_slave_configure(struct scsi_device *sdev)
1144 {
1145 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1146 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1147
1148 if (sdev->tagged_supported)
1149 scsi_activate_tcq(sdev, ha->max_q_depth);
1150 else
1151 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1152
1153 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1154
1155 return 0;
1156 }
1157
1158 static void
1159 qla2xxx_slave_destroy(struct scsi_device *sdev)
1160 {
1161 sdev->hostdata = NULL;
1162 }
1163
1164 static int
1165 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1166 {
1167 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1168 return sdev->queue_depth;
1169 }
1170
1171 static int
1172 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1173 {
1174 if (sdev->tagged_supported) {
1175 scsi_set_tag_type(sdev, tag_type);
1176 if (tag_type)
1177 scsi_activate_tcq(sdev, sdev->queue_depth);
1178 else
1179 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1180 } else
1181 tag_type = 0;
1182
1183 return tag_type;
1184 }
1185
1186 /**
1187 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1188 * @ha: HA context
1189 *
1190 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1191 * supported addressing method.
1192 */
1193 static void
1194 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1195 {
1196 /* Assume a 32bit DMA mask. */
1197 ha->flags.enable_64bit_addressing = 0;
1198
1199 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1200 /* Any upper-dword bits set? */
1201 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1202 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1203 /* Ok, a 64bit DMA mask is applicable. */
1204 ha->flags.enable_64bit_addressing = 1;
1205 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1206 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1207 return;
1208 }
1209 }
1210
1211 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1212 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1213 }
1214
1215 static void
1216 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1217 {
1218 unsigned long flags = 0;
1219 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1220
1221 spin_lock_irqsave(&ha->hardware_lock, flags);
1222 ha->interrupts_on = 1;
1223 /* enable risc and host interrupts */
1224 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1225 RD_REG_WORD(&reg->ictrl);
1226 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1227
1228 }
1229
1230 static void
1231 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1232 {
1233 unsigned long flags = 0;
1234 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1235
1236 spin_lock_irqsave(&ha->hardware_lock, flags);
1237 ha->interrupts_on = 0;
1238 /* disable risc and host interrupts */
1239 WRT_REG_WORD(&reg->ictrl, 0);
1240 RD_REG_WORD(&reg->ictrl);
1241 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1242 }
1243
1244 static void
1245 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1246 {
1247 unsigned long flags = 0;
1248 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1249
1250 spin_lock_irqsave(&ha->hardware_lock, flags);
1251 ha->interrupts_on = 1;
1252 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1253 RD_REG_DWORD(&reg->ictrl);
1254 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1255 }
1256
1257 static void
1258 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1259 {
1260 unsigned long flags = 0;
1261 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1262
1263 spin_lock_irqsave(&ha->hardware_lock, flags);
1264 ha->interrupts_on = 0;
1265 WRT_REG_DWORD(&reg->ictrl, 0);
1266 RD_REG_DWORD(&reg->ictrl);
1267 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1268 }
1269
1270 static struct isp_operations qla2100_isp_ops = {
1271 .pci_config = qla2100_pci_config,
1272 .reset_chip = qla2x00_reset_chip,
1273 .chip_diag = qla2x00_chip_diag,
1274 .config_rings = qla2x00_config_rings,
1275 .reset_adapter = qla2x00_reset_adapter,
1276 .nvram_config = qla2x00_nvram_config,
1277 .update_fw_options = qla2x00_update_fw_options,
1278 .load_risc = qla2x00_load_risc,
1279 .pci_info_str = qla2x00_pci_info_str,
1280 .fw_version_str = qla2x00_fw_version_str,
1281 .intr_handler = qla2100_intr_handler,
1282 .enable_intrs = qla2x00_enable_intrs,
1283 .disable_intrs = qla2x00_disable_intrs,
1284 .abort_command = qla2x00_abort_command,
1285 .abort_target = qla2x00_abort_target,
1286 .fabric_login = qla2x00_login_fabric,
1287 .fabric_logout = qla2x00_fabric_logout,
1288 .calc_req_entries = qla2x00_calc_iocbs_32,
1289 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1290 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1291 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1292 .read_nvram = qla2x00_read_nvram_data,
1293 .write_nvram = qla2x00_write_nvram_data,
1294 .fw_dump = qla2100_fw_dump,
1295 .beacon_on = NULL,
1296 .beacon_off = NULL,
1297 .beacon_blink = NULL,
1298 .read_optrom = qla2x00_read_optrom_data,
1299 .write_optrom = qla2x00_write_optrom_data,
1300 .get_flash_version = qla2x00_get_flash_version,
1301 };
1302
1303 static struct isp_operations qla2300_isp_ops = {
1304 .pci_config = qla2300_pci_config,
1305 .reset_chip = qla2x00_reset_chip,
1306 .chip_diag = qla2x00_chip_diag,
1307 .config_rings = qla2x00_config_rings,
1308 .reset_adapter = qla2x00_reset_adapter,
1309 .nvram_config = qla2x00_nvram_config,
1310 .update_fw_options = qla2x00_update_fw_options,
1311 .load_risc = qla2x00_load_risc,
1312 .pci_info_str = qla2x00_pci_info_str,
1313 .fw_version_str = qla2x00_fw_version_str,
1314 .intr_handler = qla2300_intr_handler,
1315 .enable_intrs = qla2x00_enable_intrs,
1316 .disable_intrs = qla2x00_disable_intrs,
1317 .abort_command = qla2x00_abort_command,
1318 .abort_target = qla2x00_abort_target,
1319 .fabric_login = qla2x00_login_fabric,
1320 .fabric_logout = qla2x00_fabric_logout,
1321 .calc_req_entries = qla2x00_calc_iocbs_32,
1322 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1323 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1324 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1325 .read_nvram = qla2x00_read_nvram_data,
1326 .write_nvram = qla2x00_write_nvram_data,
1327 .fw_dump = qla2300_fw_dump,
1328 .beacon_on = qla2x00_beacon_on,
1329 .beacon_off = qla2x00_beacon_off,
1330 .beacon_blink = qla2x00_beacon_blink,
1331 .read_optrom = qla2x00_read_optrom_data,
1332 .write_optrom = qla2x00_write_optrom_data,
1333 .get_flash_version = qla2x00_get_flash_version,
1334 };
1335
1336 static struct isp_operations qla24xx_isp_ops = {
1337 .pci_config = qla24xx_pci_config,
1338 .reset_chip = qla24xx_reset_chip,
1339 .chip_diag = qla24xx_chip_diag,
1340 .config_rings = qla24xx_config_rings,
1341 .reset_adapter = qla24xx_reset_adapter,
1342 .nvram_config = qla24xx_nvram_config,
1343 .update_fw_options = qla24xx_update_fw_options,
1344 .load_risc = qla24xx_load_risc,
1345 .pci_info_str = qla24xx_pci_info_str,
1346 .fw_version_str = qla24xx_fw_version_str,
1347 .intr_handler = qla24xx_intr_handler,
1348 .enable_intrs = qla24xx_enable_intrs,
1349 .disable_intrs = qla24xx_disable_intrs,
1350 .abort_command = qla24xx_abort_command,
1351 .abort_target = qla24xx_abort_target,
1352 .fabric_login = qla24xx_login_fabric,
1353 .fabric_logout = qla24xx_fabric_logout,
1354 .calc_req_entries = NULL,
1355 .build_iocbs = NULL,
1356 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1357 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1358 .read_nvram = qla24xx_read_nvram_data,
1359 .write_nvram = qla24xx_write_nvram_data,
1360 .fw_dump = qla24xx_fw_dump,
1361 .beacon_on = qla24xx_beacon_on,
1362 .beacon_off = qla24xx_beacon_off,
1363 .beacon_blink = qla24xx_beacon_blink,
1364 .read_optrom = qla24xx_read_optrom_data,
1365 .write_optrom = qla24xx_write_optrom_data,
1366 .get_flash_version = qla24xx_get_flash_version,
1367 };
1368
1369 static struct isp_operations qla25xx_isp_ops = {
1370 .pci_config = qla25xx_pci_config,
1371 .reset_chip = qla24xx_reset_chip,
1372 .chip_diag = qla24xx_chip_diag,
1373 .config_rings = qla24xx_config_rings,
1374 .reset_adapter = qla24xx_reset_adapter,
1375 .nvram_config = qla24xx_nvram_config,
1376 .update_fw_options = qla24xx_update_fw_options,
1377 .load_risc = qla24xx_load_risc,
1378 .pci_info_str = qla24xx_pci_info_str,
1379 .fw_version_str = qla24xx_fw_version_str,
1380 .intr_handler = qla24xx_intr_handler,
1381 .enable_intrs = qla24xx_enable_intrs,
1382 .disable_intrs = qla24xx_disable_intrs,
1383 .abort_command = qla24xx_abort_command,
1384 .abort_target = qla24xx_abort_target,
1385 .fabric_login = qla24xx_login_fabric,
1386 .fabric_logout = qla24xx_fabric_logout,
1387 .calc_req_entries = NULL,
1388 .build_iocbs = NULL,
1389 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1390 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1391 .read_nvram = qla25xx_read_nvram_data,
1392 .write_nvram = qla25xx_write_nvram_data,
1393 .fw_dump = qla25xx_fw_dump,
1394 .beacon_on = qla24xx_beacon_on,
1395 .beacon_off = qla24xx_beacon_off,
1396 .beacon_blink = qla24xx_beacon_blink,
1397 .read_optrom = qla25xx_read_optrom_data,
1398 .write_optrom = qla24xx_write_optrom_data,
1399 .get_flash_version = qla24xx_get_flash_version,
1400 };
1401
1402 static inline void
1403 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1404 {
1405 ha->device_type = DT_EXTENDED_IDS;
1406 switch (ha->pdev->device) {
1407 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1408 ha->device_type |= DT_ISP2100;
1409 ha->device_type &= ~DT_EXTENDED_IDS;
1410 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1411 break;
1412 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1413 ha->device_type |= DT_ISP2200;
1414 ha->device_type &= ~DT_EXTENDED_IDS;
1415 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1416 break;
1417 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1418 ha->device_type |= DT_ISP2300;
1419 ha->device_type |= DT_ZIO_SUPPORTED;
1420 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1421 break;
1422 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1423 ha->device_type |= DT_ISP2312;
1424 ha->device_type |= DT_ZIO_SUPPORTED;
1425 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1426 break;
1427 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1428 ha->device_type |= DT_ISP2322;
1429 ha->device_type |= DT_ZIO_SUPPORTED;
1430 if (ha->pdev->subsystem_vendor == 0x1028 &&
1431 ha->pdev->subsystem_device == 0x0170)
1432 ha->device_type |= DT_OEM_001;
1433 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1434 break;
1435 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1436 ha->device_type |= DT_ISP6312;
1437 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1438 break;
1439 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1440 ha->device_type |= DT_ISP6322;
1441 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1442 break;
1443 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1444 ha->device_type |= DT_ISP2422;
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 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1451 ha->device_type |= DT_ISP2432;
1452 ha->device_type |= DT_ZIO_SUPPORTED;
1453 ha->device_type |= DT_FWI2;
1454 ha->device_type |= DT_IIDMA;
1455 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1456 break;
1457 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1458 ha->device_type |= DT_ISP5422;
1459 ha->device_type |= DT_FWI2;
1460 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1461 break;
1462 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1463 ha->device_type |= DT_ISP5432;
1464 ha->device_type |= DT_FWI2;
1465 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1466 break;
1467 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1468 ha->device_type |= DT_ISP2532;
1469 ha->device_type |= DT_ZIO_SUPPORTED;
1470 ha->device_type |= DT_FWI2;
1471 ha->device_type |= DT_IIDMA;
1472 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1473 break;
1474 }
1475 }
1476
1477 static int
1478 qla2x00_iospace_config(scsi_qla_host_t *ha)
1479 {
1480 unsigned long pio, pio_len, pio_flags;
1481 unsigned long mmio, mmio_len, mmio_flags;
1482
1483 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1484 pio = pci_resource_start(ha->pdev, 0);
1485 pio_len = pci_resource_len(ha->pdev, 0);
1486 pio_flags = pci_resource_flags(ha->pdev, 0);
1487 if (pio_flags & IORESOURCE_IO) {
1488 if (pio_len < MIN_IOBASE_LEN) {
1489 qla_printk(KERN_WARNING, ha,
1490 "Invalid PCI I/O region size (%s)...\n",
1491 pci_name(ha->pdev));
1492 pio = 0;
1493 }
1494 } else {
1495 qla_printk(KERN_WARNING, ha,
1496 "region #0 not a PIO resource (%s)...\n",
1497 pci_name(ha->pdev));
1498 pio = 0;
1499 }
1500
1501 /* Use MMIO operations for all accesses. */
1502 mmio = pci_resource_start(ha->pdev, 1);
1503 mmio_len = pci_resource_len(ha->pdev, 1);
1504 mmio_flags = pci_resource_flags(ha->pdev, 1);
1505
1506 if (!(mmio_flags & IORESOURCE_MEM)) {
1507 qla_printk(KERN_ERR, ha,
1508 "region #0 not an MMIO resource (%s), aborting\n",
1509 pci_name(ha->pdev));
1510 goto iospace_error_exit;
1511 }
1512 if (mmio_len < MIN_IOBASE_LEN) {
1513 qla_printk(KERN_ERR, ha,
1514 "Invalid PCI mem region size (%s), aborting\n",
1515 pci_name(ha->pdev));
1516 goto iospace_error_exit;
1517 }
1518
1519 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1520 qla_printk(KERN_WARNING, ha,
1521 "Failed to reserve PIO/MMIO regions (%s)\n",
1522 pci_name(ha->pdev));
1523
1524 goto iospace_error_exit;
1525 }
1526
1527 ha->pio_address = pio;
1528 ha->pio_length = pio_len;
1529 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1530 if (!ha->iobase) {
1531 qla_printk(KERN_ERR, ha,
1532 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1533
1534 goto iospace_error_exit;
1535 }
1536
1537 return (0);
1538
1539 iospace_error_exit:
1540 return (-ENOMEM);
1541 }
1542
1543 static void
1544 qla2xxx_scan_start(struct Scsi_Host *shost)
1545 {
1546 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1547
1548 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1549 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1550 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1551 }
1552
1553 static int
1554 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1555 {
1556 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1557
1558 if (!ha->host)
1559 return 1;
1560 if (time > ha->loop_reset_delay * HZ)
1561 return 1;
1562
1563 return atomic_read(&ha->loop_state) == LOOP_READY;
1564 }
1565
1566 /*
1567 * PCI driver interface
1568 */
1569 static int __devinit
1570 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1571 {
1572 int ret = -ENODEV;
1573 device_reg_t __iomem *reg;
1574 struct Scsi_Host *host;
1575 scsi_qla_host_t *ha;
1576 unsigned long flags = 0;
1577 char pci_info[30];
1578 char fw_str[30];
1579 struct scsi_host_template *sht;
1580
1581 if (pci_enable_device(pdev))
1582 goto probe_out;
1583
1584 if (pci_find_aer_capability(pdev))
1585 if (pci_enable_pcie_error_reporting(pdev))
1586 goto probe_out;
1587
1588 sht = &qla2x00_driver_template;
1589 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1590 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1591 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1592 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1593 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532)
1594 sht = &qla24xx_driver_template;
1595 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1596 if (host == NULL) {
1597 printk(KERN_WARNING
1598 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1599 goto probe_disable_device;
1600 }
1601
1602 /* Clear our data area */
1603 ha = (scsi_qla_host_t *)host->hostdata;
1604 memset(ha, 0, sizeof(scsi_qla_host_t));
1605
1606 ha->pdev = pdev;
1607 ha->host = host;
1608 ha->host_no = host->host_no;
1609 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1610 ha->parent = NULL;
1611
1612 /* Set ISP-type information. */
1613 qla2x00_set_isp_flags(ha);
1614
1615 /* Configure PCI I/O space */
1616 ret = qla2x00_iospace_config(ha);
1617 if (ret)
1618 goto probe_failed;
1619
1620 qla_printk(KERN_INFO, ha,
1621 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1622 ha->iobase);
1623
1624 spin_lock_init(&ha->hardware_lock);
1625
1626 ha->prev_topology = 0;
1627 ha->init_cb_size = sizeof(init_cb_t);
1628 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1629 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1630 ha->optrom_size = OPTROM_SIZE_2300;
1631
1632 ha->max_q_depth = MAX_Q_DEPTH;
1633 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1634 ha->max_q_depth = ql2xmaxqdepth;
1635
1636 /* Assign ISP specific operations. */
1637 if (IS_QLA2100(ha)) {
1638 host->max_id = MAX_TARGETS_2100;
1639 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1640 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1641 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1642 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1643 host->sg_tablesize = 32;
1644 ha->gid_list_info_size = 4;
1645 ha->isp_ops = &qla2100_isp_ops;
1646 } else if (IS_QLA2200(ha)) {
1647 host->max_id = MAX_TARGETS_2200;
1648 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1649 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1650 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1651 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1652 ha->gid_list_info_size = 4;
1653 ha->isp_ops = &qla2100_isp_ops;
1654 } else if (IS_QLA23XX(ha)) {
1655 host->max_id = MAX_TARGETS_2200;
1656 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1657 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1658 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1659 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1660 ha->gid_list_info_size = 6;
1661 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1662 ha->optrom_size = OPTROM_SIZE_2322;
1663 ha->isp_ops = &qla2300_isp_ops;
1664 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1665 host->max_id = MAX_TARGETS_2200;
1666 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1667 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1668 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1669 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1670 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1671 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1672 ha->gid_list_info_size = 8;
1673 ha->optrom_size = OPTROM_SIZE_24XX;
1674 ha->isp_ops = &qla24xx_isp_ops;
1675 } else if (IS_QLA25XX(ha)) {
1676 host->max_id = MAX_TARGETS_2200;
1677 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1678 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1679 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1680 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1681 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1682 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1683 ha->gid_list_info_size = 8;
1684 ha->optrom_size = OPTROM_SIZE_25XX;
1685 ha->isp_ops = &qla25xx_isp_ops;
1686 }
1687 host->can_queue = ha->request_q_length + 128;
1688
1689 /* load the F/W, read paramaters, and init the H/W */
1690 ha->instance = num_hosts;
1691
1692 init_MUTEX(&ha->mbx_cmd_sem);
1693 init_MUTEX(&ha->vport_sem);
1694 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1695
1696 INIT_LIST_HEAD(&ha->list);
1697 INIT_LIST_HEAD(&ha->fcports);
1698 INIT_LIST_HEAD(&ha->vp_list);
1699
1700 set_bit(0, (unsigned long *) ha->vp_idx_map);
1701
1702 qla2x00_config_dma_addressing(ha);
1703 if (qla2x00_mem_alloc(ha)) {
1704 qla_printk(KERN_WARNING, ha,
1705 "[ERROR] Failed to allocate memory for adapter\n");
1706
1707 ret = -ENOMEM;
1708 goto probe_failed;
1709 }
1710
1711 if (qla2x00_initialize_adapter(ha)) {
1712 qla_printk(KERN_WARNING, ha,
1713 "Failed to initialize adapter\n");
1714
1715 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1716 "Adapter flags %x.\n",
1717 ha->host_no, ha->device_flags));
1718
1719 ret = -ENODEV;
1720 goto probe_failed;
1721 }
1722
1723 /*
1724 * Startup the kernel thread for this host adapter
1725 */
1726 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1727 "%s_dpc", ha->host_str);
1728 if (IS_ERR(ha->dpc_thread)) {
1729 qla_printk(KERN_WARNING, ha,
1730 "Unable to start DPC thread!\n");
1731 ret = PTR_ERR(ha->dpc_thread);
1732 goto probe_failed;
1733 }
1734
1735 host->this_id = 255;
1736 host->cmd_per_lun = 3;
1737 host->unique_id = ha->instance;
1738 host->max_cmd_len = MAX_CMDSZ;
1739 host->max_channel = MAX_BUSES - 1;
1740 host->max_lun = MAX_LUNS;
1741 host->transportt = qla2xxx_transport_template;
1742
1743 ret = qla2x00_request_irqs(ha);
1744 if (ret)
1745 goto probe_failed;
1746
1747 /* Initialized the timer */
1748 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1749
1750 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1751 ha->host_no, ha));
1752
1753 ha->isp_ops->disable_intrs(ha);
1754
1755 spin_lock_irqsave(&ha->hardware_lock, flags);
1756 reg = ha->iobase;
1757 if (IS_FWI2_CAPABLE(ha)) {
1758 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1759 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1760 } else {
1761 WRT_REG_WORD(&reg->isp.semaphore, 0);
1762 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1763 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1764
1765 /* Enable proper parity */
1766 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1767 if (IS_QLA2300(ha))
1768 /* SRAM parity */
1769 WRT_REG_WORD(&reg->isp.hccr,
1770 (HCCR_ENABLE_PARITY + 0x1));
1771 else
1772 /* SRAM, Instruction RAM and GP RAM parity */
1773 WRT_REG_WORD(&reg->isp.hccr,
1774 (HCCR_ENABLE_PARITY + 0x7));
1775 }
1776 }
1777 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1778
1779 ha->isp_ops->enable_intrs(ha);
1780
1781 pci_set_drvdata(pdev, ha);
1782
1783 ha->flags.init_done = 1;
1784 ha->flags.online = 1;
1785
1786 num_hosts++;
1787
1788 ret = scsi_add_host(host, &pdev->dev);
1789 if (ret)
1790 goto probe_failed;
1791
1792 scsi_scan_host(host);
1793
1794 qla2x00_alloc_sysfs_attr(ha);
1795
1796 qla2x00_init_host_attr(ha);
1797
1798 qla_printk(KERN_INFO, ha, "\n"
1799 " QLogic Fibre Channel HBA Driver: %s\n"
1800 " QLogic %s - %s\n"
1801 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1802 qla2x00_version_str, ha->model_number,
1803 ha->model_desc ? ha->model_desc: "", pdev->device,
1804 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1805 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1806 ha->isp_ops->fw_version_str(ha, fw_str));
1807
1808 return 0;
1809
1810 probe_failed:
1811 qla2x00_free_device(ha);
1812
1813 scsi_host_put(host);
1814
1815 probe_disable_device:
1816 pci_disable_device(pdev);
1817
1818 probe_out:
1819 return ret;
1820 }
1821
1822 static void __devexit
1823 qla2x00_remove_one(struct pci_dev *pdev)
1824 {
1825 scsi_qla_host_t *ha;
1826
1827 ha = pci_get_drvdata(pdev);
1828
1829 qla2x00_free_sysfs_attr(ha);
1830
1831 fc_remove_host(ha->host);
1832
1833 scsi_remove_host(ha->host);
1834
1835 qla2x00_free_device(ha);
1836
1837 scsi_host_put(ha->host);
1838
1839 pci_disable_device(pdev);
1840 pci_set_drvdata(pdev, NULL);
1841 }
1842
1843 static void
1844 qla2x00_free_device(scsi_qla_host_t *ha)
1845 {
1846 /* Disable timer */
1847 if (ha->timer_active)
1848 qla2x00_stop_timer(ha);
1849
1850 /* Kill the kernel thread for this host */
1851 if (ha->dpc_thread) {
1852 struct task_struct *t = ha->dpc_thread;
1853
1854 /*
1855 * qla2xxx_wake_dpc checks for ->dpc_thread
1856 * so we need to zero it out.
1857 */
1858 ha->dpc_thread = NULL;
1859 kthread_stop(t);
1860 }
1861
1862 if (ha->eft)
1863 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1864
1865 ha->flags.online = 0;
1866
1867 /* Stop currently executing firmware. */
1868 qla2x00_try_to_stop_firmware(ha);
1869
1870 /* turn-off interrupts on the card */
1871 if (ha->interrupts_on)
1872 ha->isp_ops->disable_intrs(ha);
1873
1874 qla2x00_mem_free(ha);
1875
1876 qla2x00_free_irqs(ha);
1877
1878 /* release io space registers */
1879 if (ha->iobase)
1880 iounmap(ha->iobase);
1881 pci_release_regions(ha->pdev);
1882 }
1883
1884 static inline void
1885 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1886 int defer)
1887 {
1888 unsigned long flags;
1889 struct fc_rport *rport;
1890
1891 if (!fcport->rport)
1892 return;
1893
1894 rport = fcport->rport;
1895 if (defer) {
1896 spin_lock_irqsave(&fcport->rport_lock, flags);
1897 fcport->drport = rport;
1898 fcport->rport = NULL;
1899 *(fc_port_t **)rport->dd_data = NULL;
1900 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1901 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1902 } else {
1903 spin_lock_irqsave(&fcport->rport_lock, flags);
1904 fcport->rport = NULL;
1905 *(fc_port_t **)rport->dd_data = NULL;
1906 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1907 fc_remote_port_delete(rport);
1908 }
1909 }
1910
1911 /*
1912 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1913 *
1914 * Input: ha = adapter block pointer. fcport = port structure pointer.
1915 *
1916 * Return: None.
1917 *
1918 * Context:
1919 */
1920 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1921 int do_login, int defer)
1922 {
1923 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1924 ha->vp_idx == fcport->vp_idx)
1925 qla2x00_schedule_rport_del(ha, fcport, defer);
1926
1927 /*
1928 * We may need to retry the login, so don't change the state of the
1929 * port but do the retries.
1930 */
1931 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1932 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1933
1934 if (!do_login)
1935 return;
1936
1937 if (fcport->login_retry == 0) {
1938 fcport->login_retry = ha->login_retry_count;
1939 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1940
1941 DEBUG(printk("scsi(%ld): Port login retry: "
1942 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1943 "id = 0x%04x retry cnt=%d\n",
1944 ha->host_no,
1945 fcport->port_name[0],
1946 fcport->port_name[1],
1947 fcport->port_name[2],
1948 fcport->port_name[3],
1949 fcport->port_name[4],
1950 fcport->port_name[5],
1951 fcport->port_name[6],
1952 fcport->port_name[7],
1953 fcport->loop_id,
1954 fcport->login_retry));
1955 }
1956 }
1957
1958 /*
1959 * qla2x00_mark_all_devices_lost
1960 * Updates fcport state when device goes offline.
1961 *
1962 * Input:
1963 * ha = adapter block pointer.
1964 * fcport = port structure pointer.
1965 *
1966 * Return:
1967 * None.
1968 *
1969 * Context:
1970 */
1971 void
1972 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1973 {
1974 fc_port_t *fcport;
1975 scsi_qla_host_t *pha = to_qla_parent(ha);
1976
1977 list_for_each_entry(fcport, &pha->fcports, list) {
1978 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1979 continue;
1980 /*
1981 * No point in marking the device as lost, if the device is
1982 * already DEAD.
1983 */
1984 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1985 continue;
1986 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1987 if (defer)
1988 qla2x00_schedule_rport_del(ha, fcport, defer);
1989 else if (ha->vp_idx == fcport->vp_idx)
1990 qla2x00_schedule_rport_del(ha, fcport, defer);
1991 }
1992 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1993 }
1994
1995 if (defer)
1996 qla2xxx_wake_dpc(ha);
1997 }
1998
1999 /*
2000 * qla2x00_mem_alloc
2001 * Allocates adapter memory.
2002 *
2003 * Returns:
2004 * 0 = success.
2005 * 1 = failure.
2006 */
2007 uint8_t
2008 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2009 {
2010 char name[16];
2011 uint8_t status = 1;
2012 int retry= 10;
2013
2014 do {
2015 /*
2016 * This will loop only once if everything goes well, else some
2017 * number of retries will be performed to get around a kernel
2018 * bug where available mem is not allocated until after a
2019 * little delay and a retry.
2020 */
2021 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2022 (ha->request_q_length + 1) * sizeof(request_t),
2023 &ha->request_dma, GFP_KERNEL);
2024 if (ha->request_ring == NULL) {
2025 qla_printk(KERN_WARNING, ha,
2026 "Memory Allocation failed - request_ring\n");
2027
2028 qla2x00_mem_free(ha);
2029 msleep(100);
2030
2031 continue;
2032 }
2033
2034 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2035 (ha->response_q_length + 1) * sizeof(response_t),
2036 &ha->response_dma, GFP_KERNEL);
2037 if (ha->response_ring == NULL) {
2038 qla_printk(KERN_WARNING, ha,
2039 "Memory Allocation failed - response_ring\n");
2040
2041 qla2x00_mem_free(ha);
2042 msleep(100);
2043
2044 continue;
2045 }
2046
2047 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2048 &ha->gid_list_dma, GFP_KERNEL);
2049 if (ha->gid_list == NULL) {
2050 qla_printk(KERN_WARNING, ha,
2051 "Memory Allocation failed - gid_list\n");
2052
2053 qla2x00_mem_free(ha);
2054 msleep(100);
2055
2056 continue;
2057 }
2058
2059 /* get consistent memory allocated for init control block */
2060 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2061 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2062 if (ha->init_cb == NULL) {
2063 qla_printk(KERN_WARNING, ha,
2064 "Memory Allocation failed - init_cb\n");
2065
2066 qla2x00_mem_free(ha);
2067 msleep(100);
2068
2069 continue;
2070 }
2071 memset(ha->init_cb, 0, ha->init_cb_size);
2072
2073 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2074 ha->host_no);
2075 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2076 DMA_POOL_SIZE, 8, 0);
2077 if (ha->s_dma_pool == NULL) {
2078 qla_printk(KERN_WARNING, ha,
2079 "Memory Allocation failed - s_dma_pool\n");
2080
2081 qla2x00_mem_free(ha);
2082 msleep(100);
2083
2084 continue;
2085 }
2086
2087 if (qla2x00_allocate_sp_pool(ha)) {
2088 qla_printk(KERN_WARNING, ha,
2089 "Memory Allocation failed - "
2090 "qla2x00_allocate_sp_pool()\n");
2091
2092 qla2x00_mem_free(ha);
2093 msleep(100);
2094
2095 continue;
2096 }
2097
2098 /* Allocate memory for SNS commands */
2099 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2100 /* Get consistent memory allocated for SNS commands */
2101 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2102 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2103 GFP_KERNEL);
2104 if (ha->sns_cmd == NULL) {
2105 /* error */
2106 qla_printk(KERN_WARNING, ha,
2107 "Memory Allocation failed - sns_cmd\n");
2108
2109 qla2x00_mem_free(ha);
2110 msleep(100);
2111
2112 continue;
2113 }
2114 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2115 } else {
2116 /* Get consistent memory allocated for MS IOCB */
2117 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2118 &ha->ms_iocb_dma);
2119 if (ha->ms_iocb == NULL) {
2120 /* error */
2121 qla_printk(KERN_WARNING, ha,
2122 "Memory Allocation failed - ms_iocb\n");
2123
2124 qla2x00_mem_free(ha);
2125 msleep(100);
2126
2127 continue;
2128 }
2129 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2130
2131 /*
2132 * Get consistent memory allocated for CT SNS
2133 * commands
2134 */
2135 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2136 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2137 GFP_KERNEL);
2138 if (ha->ct_sns == NULL) {
2139 /* error */
2140 qla_printk(KERN_WARNING, ha,
2141 "Memory Allocation failed - ct_sns\n");
2142
2143 qla2x00_mem_free(ha);
2144 msleep(100);
2145
2146 continue;
2147 }
2148 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2149
2150 if (IS_FWI2_CAPABLE(ha)) {
2151 /*
2152 * Get consistent memory allocated for SFP
2153 * block.
2154 */
2155 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2156 GFP_KERNEL, &ha->sfp_data_dma);
2157 if (ha->sfp_data == NULL) {
2158 qla_printk(KERN_WARNING, ha,
2159 "Memory Allocation failed - "
2160 "sfp_data\n");
2161
2162 qla2x00_mem_free(ha);
2163 msleep(100);
2164
2165 continue;
2166 }
2167 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2168 }
2169 }
2170
2171 /* Get memory for cached NVRAM */
2172 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2173 if (ha->nvram == NULL) {
2174 /* error */
2175 qla_printk(KERN_WARNING, ha,
2176 "Memory Allocation failed - nvram cache\n");
2177
2178 qla2x00_mem_free(ha);
2179 msleep(100);
2180
2181 continue;
2182 }
2183
2184 /* Done all allocations without any error. */
2185 status = 0;
2186
2187 } while (retry-- && status != 0);
2188
2189 if (status) {
2190 printk(KERN_WARNING
2191 "%s(): **** FAILED ****\n", __func__);
2192 }
2193
2194 return(status);
2195 }
2196
2197 /*
2198 * qla2x00_mem_free
2199 * Frees all adapter allocated memory.
2200 *
2201 * Input:
2202 * ha = adapter block pointer.
2203 */
2204 void
2205 qla2x00_mem_free(scsi_qla_host_t *ha)
2206 {
2207 struct list_head *fcpl, *fcptemp;
2208 fc_port_t *fcport;
2209
2210 if (ha == NULL) {
2211 /* error */
2212 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2213 return;
2214 }
2215
2216 /* free sp pool */
2217 qla2x00_free_sp_pool(ha);
2218
2219 if (ha->fw_dump) {
2220 if (ha->eft)
2221 dma_free_coherent(&ha->pdev->dev,
2222 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2223 vfree(ha->fw_dump);
2224 }
2225
2226 if (ha->sns_cmd)
2227 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2228 ha->sns_cmd, ha->sns_cmd_dma);
2229
2230 if (ha->ct_sns)
2231 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2232 ha->ct_sns, ha->ct_sns_dma);
2233
2234 if (ha->sfp_data)
2235 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2236
2237 if (ha->ms_iocb)
2238 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2239
2240 if (ha->s_dma_pool)
2241 dma_pool_destroy(ha->s_dma_pool);
2242
2243 if (ha->init_cb)
2244 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2245 ha->init_cb, ha->init_cb_dma);
2246
2247 if (ha->gid_list)
2248 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2249 ha->gid_list_dma);
2250
2251 if (ha->response_ring)
2252 dma_free_coherent(&ha->pdev->dev,
2253 (ha->response_q_length + 1) * sizeof(response_t),
2254 ha->response_ring, ha->response_dma);
2255
2256 if (ha->request_ring)
2257 dma_free_coherent(&ha->pdev->dev,
2258 (ha->request_q_length + 1) * sizeof(request_t),
2259 ha->request_ring, ha->request_dma);
2260
2261 ha->eft = NULL;
2262 ha->eft_dma = 0;
2263 ha->sns_cmd = NULL;
2264 ha->sns_cmd_dma = 0;
2265 ha->ct_sns = NULL;
2266 ha->ct_sns_dma = 0;
2267 ha->ms_iocb = NULL;
2268 ha->ms_iocb_dma = 0;
2269 ha->init_cb = NULL;
2270 ha->init_cb_dma = 0;
2271
2272 ha->s_dma_pool = NULL;
2273
2274 ha->gid_list = NULL;
2275 ha->gid_list_dma = 0;
2276
2277 ha->response_ring = NULL;
2278 ha->response_dma = 0;
2279 ha->request_ring = NULL;
2280 ha->request_dma = 0;
2281
2282 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2283 fcport = list_entry(fcpl, fc_port_t, list);
2284
2285 /* fc ports */
2286 list_del_init(&fcport->list);
2287 kfree(fcport);
2288 }
2289 INIT_LIST_HEAD(&ha->fcports);
2290
2291 ha->fw_dump = NULL;
2292 ha->fw_dumped = 0;
2293 ha->fw_dump_reading = 0;
2294
2295 vfree(ha->optrom_buffer);
2296 kfree(ha->nvram);
2297 }
2298
2299 /*
2300 * qla2x00_allocate_sp_pool
2301 * This routine is called during initialization to allocate
2302 * memory for local srb_t.
2303 *
2304 * Input:
2305 * ha = adapter block pointer.
2306 *
2307 * Context:
2308 * Kernel context.
2309 */
2310 static int
2311 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2312 {
2313 int rval;
2314
2315 rval = QLA_SUCCESS;
2316 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2317 if (ha->srb_mempool == NULL) {
2318 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2319 rval = QLA_FUNCTION_FAILED;
2320 }
2321 return (rval);
2322 }
2323
2324 /*
2325 * This routine frees all adapter allocated memory.
2326 *
2327 */
2328 static void
2329 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2330 {
2331 if (ha->srb_mempool) {
2332 mempool_destroy(ha->srb_mempool);
2333 ha->srb_mempool = NULL;
2334 }
2335 }
2336
2337 /**************************************************************************
2338 * qla2x00_do_dpc
2339 * This kernel thread is a task that is schedule by the interrupt handler
2340 * to perform the background processing for interrupts.
2341 *
2342 * Notes:
2343 * This task always run in the context of a kernel thread. It
2344 * is kick-off by the driver's detect code and starts up
2345 * up one per adapter. It immediately goes to sleep and waits for
2346 * some fibre event. When either the interrupt handler or
2347 * the timer routine detects a event it will one of the task
2348 * bits then wake us up.
2349 **************************************************************************/
2350 static int
2351 qla2x00_do_dpc(void *data)
2352 {
2353 int rval;
2354 scsi_qla_host_t *ha;
2355 fc_port_t *fcport;
2356 uint8_t status;
2357 uint16_t next_loopid;
2358
2359 ha = (scsi_qla_host_t *)data;
2360
2361 set_user_nice(current, -20);
2362
2363 while (!kthread_should_stop()) {
2364 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2365
2366 set_current_state(TASK_INTERRUPTIBLE);
2367 schedule();
2368 __set_current_state(TASK_RUNNING);
2369
2370 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2371
2372 /* Initialization not yet finished. Don't do anything yet. */
2373 if (!ha->flags.init_done)
2374 continue;
2375
2376 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2377
2378 ha->dpc_active = 1;
2379
2380 if (ha->flags.mbox_busy) {
2381 ha->dpc_active = 0;
2382 continue;
2383 }
2384
2385 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2386
2387 DEBUG(printk("scsi(%ld): dpc: sched "
2388 "qla2x00_abort_isp ha = %p\n",
2389 ha->host_no, ha));
2390 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2391 &ha->dpc_flags))) {
2392
2393 if (qla2x00_abort_isp(ha)) {
2394 /* failed. retry later */
2395 set_bit(ISP_ABORT_NEEDED,
2396 &ha->dpc_flags);
2397 }
2398 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2399 }
2400 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2401 ha->host_no));
2402 }
2403
2404 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2405 qla2x00_update_fcports(ha);
2406
2407 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2408 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2409 ha->host_no));
2410 qla2x00_loop_reset(ha);
2411 }
2412
2413 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2414 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2415
2416 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2417 ha->host_no));
2418
2419 qla2x00_rst_aen(ha);
2420 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2421 }
2422
2423 /* Retry each device up to login retry count */
2424 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2425 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2426 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2427
2428 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2429 ha->host_no));
2430
2431 next_loopid = 0;
2432 list_for_each_entry(fcport, &ha->fcports, list) {
2433 /*
2434 * If the port is not ONLINE then try to login
2435 * to it if we haven't run out of retries.
2436 */
2437 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2438 fcport->login_retry) {
2439
2440 if (fcport->flags & FCF_FABRIC_DEVICE) {
2441 if (fcport->flags &
2442 FCF_TAPE_PRESENT)
2443 ha->isp_ops->fabric_logout(
2444 ha, fcport->loop_id,
2445 fcport->d_id.b.domain,
2446 fcport->d_id.b.area,
2447 fcport->d_id.b.al_pa);
2448 status = qla2x00_fabric_login(
2449 ha, fcport, &next_loopid);
2450 } else
2451 status =
2452 qla2x00_local_device_login(
2453 ha, fcport);
2454
2455 fcport->login_retry--;
2456 if (status == QLA_SUCCESS) {
2457 fcport->old_loop_id = fcport->loop_id;
2458
2459 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2460 ha->host_no, fcport->loop_id));
2461
2462 qla2x00_update_fcport(ha,
2463 fcport);
2464 } else if (status == 1) {
2465 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2466 /* retry the login again */
2467 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2468 ha->host_no,
2469 fcport->login_retry, fcport->loop_id));
2470 } else {
2471 fcport->login_retry = 0;
2472 }
2473 if (fcport->login_retry == 0)
2474 fcport->loop_id = FC_NO_LOOP_ID;
2475 }
2476 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2477 break;
2478 }
2479 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2480 ha->host_no));
2481 }
2482
2483 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2484 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2485
2486 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2487 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2488 ha->host_no));
2489
2490 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2491
2492 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2493 ha->host_no));
2494 }
2495
2496 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2497
2498 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2499 ha->host_no));
2500
2501 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2502 &ha->dpc_flags))) {
2503
2504 rval = qla2x00_loop_resync(ha);
2505
2506 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2507 }
2508
2509 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2510 ha->host_no));
2511 }
2512
2513 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2514
2515 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2516 ha->host_no));
2517
2518 qla2x00_rescan_fcports(ha);
2519
2520 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2521 "end.\n",
2522 ha->host_no));
2523 }
2524
2525 if (!ha->interrupts_on)
2526 ha->isp_ops->enable_intrs(ha);
2527
2528 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2529 ha->isp_ops->beacon_blink(ha);
2530
2531 qla2x00_do_dpc_all_vps(ha);
2532
2533 ha->dpc_active = 0;
2534 } /* End of while(1) */
2535
2536 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2537
2538 /*
2539 * Make sure that nobody tries to wake us up again.
2540 */
2541 ha->dpc_active = 0;
2542
2543 return 0;
2544 }
2545
2546 void
2547 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2548 {
2549 if (ha->dpc_thread)
2550 wake_up_process(ha->dpc_thread);
2551 }
2552
2553 /*
2554 * qla2x00_rst_aen
2555 * Processes asynchronous reset.
2556 *
2557 * Input:
2558 * ha = adapter block pointer.
2559 */
2560 static void
2561 qla2x00_rst_aen(scsi_qla_host_t *ha)
2562 {
2563 if (ha->flags.online && !ha->flags.reset_active &&
2564 !atomic_read(&ha->loop_down_timer) &&
2565 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2566 do {
2567 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2568
2569 /*
2570 * Issue marker command only when we are going to start
2571 * the I/O.
2572 */
2573 ha->marker_needed = 1;
2574 } while (!atomic_read(&ha->loop_down_timer) &&
2575 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2576 }
2577 }
2578
2579 static void
2580 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2581 {
2582 struct scsi_cmnd *cmd = sp->cmd;
2583
2584 if (sp->flags & SRB_DMA_VALID) {
2585 scsi_dma_unmap(cmd);
2586 sp->flags &= ~SRB_DMA_VALID;
2587 }
2588 CMD_SP(cmd) = NULL;
2589 }
2590
2591 void
2592 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2593 {
2594 struct scsi_cmnd *cmd = sp->cmd;
2595
2596 qla2x00_sp_free_dma(ha, sp);
2597
2598 mempool_free(sp, ha->srb_mempool);
2599
2600 cmd->scsi_done(cmd);
2601 }
2602
2603 /**************************************************************************
2604 * qla2x00_timer
2605 *
2606 * Description:
2607 * One second timer
2608 *
2609 * Context: Interrupt
2610 ***************************************************************************/
2611 void
2612 qla2x00_timer(scsi_qla_host_t *ha)
2613 {
2614 unsigned long cpu_flags = 0;
2615 fc_port_t *fcport;
2616 int start_dpc = 0;
2617 int index;
2618 srb_t *sp;
2619 int t;
2620 scsi_qla_host_t *pha = to_qla_parent(ha);
2621
2622 /*
2623 * Ports - Port down timer.
2624 *
2625 * Whenever, a port is in the LOST state we start decrementing its port
2626 * down timer every second until it reaches zero. Once it reaches zero
2627 * the port it marked DEAD.
2628 */
2629 t = 0;
2630 list_for_each_entry(fcport, &ha->fcports, list) {
2631 if (fcport->port_type != FCT_TARGET)
2632 continue;
2633
2634 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2635
2636 if (atomic_read(&fcport->port_down_timer) == 0)
2637 continue;
2638
2639 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2640 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2641
2642 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2643 "%d remaining\n",
2644 ha->host_no,
2645 t, atomic_read(&fcport->port_down_timer)));
2646 }
2647 t++;
2648 } /* End of for fcport */
2649
2650
2651 /* Loop down handler. */
2652 if (atomic_read(&ha->loop_down_timer) > 0 &&
2653 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2654
2655 if (atomic_read(&ha->loop_down_timer) ==
2656 ha->loop_down_abort_time) {
2657
2658 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2659 "queues before time expire\n",
2660 ha->host_no));
2661
2662 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2663 atomic_set(&ha->loop_state, LOOP_DEAD);
2664
2665 /* Schedule an ISP abort to return any tape commands. */
2666 /* NPIV - scan physical port only */
2667 if (!ha->parent) {
2668 spin_lock_irqsave(&ha->hardware_lock,
2669 cpu_flags);
2670 for (index = 1;
2671 index < MAX_OUTSTANDING_COMMANDS;
2672 index++) {
2673 fc_port_t *sfcp;
2674
2675 sp = ha->outstanding_cmds[index];
2676 if (!sp)
2677 continue;
2678 sfcp = sp->fcport;
2679 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2680 continue;
2681
2682 set_bit(ISP_ABORT_NEEDED,
2683 &ha->dpc_flags);
2684 break;
2685 }
2686 spin_unlock_irqrestore(&ha->hardware_lock,
2687 cpu_flags);
2688 }
2689 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2690 start_dpc++;
2691 }
2692
2693 /* if the loop has been down for 4 minutes, reinit adapter */
2694 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2695 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2696 "restarting queues.\n",
2697 ha->host_no));
2698
2699 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2700 start_dpc++;
2701
2702 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2703 DEBUG(printk("scsi(%ld): Loop down - "
2704 "aborting ISP.\n",
2705 ha->host_no));
2706 qla_printk(KERN_WARNING, ha,
2707 "Loop down - aborting ISP.\n");
2708
2709 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2710 }
2711 }
2712 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2713 ha->host_no,
2714 atomic_read(&ha->loop_down_timer)));
2715 }
2716
2717 /* Check if beacon LED needs to be blinked */
2718 if (ha->beacon_blink_led == 1) {
2719 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2720 start_dpc++;
2721 }
2722
2723 /* Schedule the DPC routine if needed */
2724 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2725 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2726 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2727 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2728 start_dpc ||
2729 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2730 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2731 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2732 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2733 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2734 qla2xxx_wake_dpc(pha);
2735
2736 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2737 }
2738
2739 /* XXX(hch): crude hack to emulate a down_timeout() */
2740 int
2741 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2742 {
2743 const unsigned int step = 100; /* msecs */
2744 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2745
2746 do {
2747 if (!down_trylock(sema))
2748 return 0;
2749 if (msleep_interruptible(step))
2750 break;
2751 } while (--iterations > 0);
2752
2753 return -ETIMEDOUT;
2754 }
2755
2756 /* Firmware interface routines. */
2757
2758 #define FW_BLOBS 6
2759 #define FW_ISP21XX 0
2760 #define FW_ISP22XX 1
2761 #define FW_ISP2300 2
2762 #define FW_ISP2322 3
2763 #define FW_ISP24XX 4
2764 #define FW_ISP25XX 5
2765
2766 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2767 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2768 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2769 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2770 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2771 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2772
2773 static DECLARE_MUTEX(qla_fw_lock);
2774
2775 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2776 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2777 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2778 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2779 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2780 { .name = FW_FILE_ISP24XX, },
2781 { .name = FW_FILE_ISP25XX, },
2782 };
2783
2784 struct fw_blob *
2785 qla2x00_request_firmware(scsi_qla_host_t *ha)
2786 {
2787 struct fw_blob *blob;
2788
2789 blob = NULL;
2790 if (IS_QLA2100(ha)) {
2791 blob = &qla_fw_blobs[FW_ISP21XX];
2792 } else if (IS_QLA2200(ha)) {
2793 blob = &qla_fw_blobs[FW_ISP22XX];
2794 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2795 blob = &qla_fw_blobs[FW_ISP2300];
2796 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2797 blob = &qla_fw_blobs[FW_ISP2322];
2798 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2799 blob = &qla_fw_blobs[FW_ISP24XX];
2800 } else if (IS_QLA25XX(ha)) {
2801 blob = &qla_fw_blobs[FW_ISP25XX];
2802 }
2803
2804 down(&qla_fw_lock);
2805 if (blob->fw)
2806 goto out;
2807
2808 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2809 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2810 "(%s).\n", ha->host_no, blob->name));
2811 blob->fw = NULL;
2812 blob = NULL;
2813 goto out;
2814 }
2815
2816 out:
2817 up(&qla_fw_lock);
2818 return blob;
2819 }
2820
2821 static void
2822 qla2x00_release_firmware(void)
2823 {
2824 int idx;
2825
2826 down(&qla_fw_lock);
2827 for (idx = 0; idx < FW_BLOBS; idx++)
2828 if (qla_fw_blobs[idx].fw)
2829 release_firmware(qla_fw_blobs[idx].fw);
2830 up(&qla_fw_lock);
2831 }
2832
2833 static pci_ers_result_t
2834 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2835 {
2836 switch (state) {
2837 case pci_channel_io_normal:
2838 return PCI_ERS_RESULT_CAN_RECOVER;
2839 case pci_channel_io_frozen:
2840 pci_disable_device(pdev);
2841 return PCI_ERS_RESULT_NEED_RESET;
2842 case pci_channel_io_perm_failure:
2843 qla2x00_remove_one(pdev);
2844 return PCI_ERS_RESULT_DISCONNECT;
2845 }
2846 return PCI_ERS_RESULT_NEED_RESET;
2847 }
2848
2849 static pci_ers_result_t
2850 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2851 {
2852 int risc_paused = 0;
2853 uint32_t stat;
2854 unsigned long flags;
2855 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2856 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2857 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2858
2859 spin_lock_irqsave(&ha->hardware_lock, flags);
2860 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2861 stat = RD_REG_DWORD(&reg->hccr);
2862 if (stat & HCCR_RISC_PAUSE)
2863 risc_paused = 1;
2864 } else if (IS_QLA23XX(ha)) {
2865 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2866 if (stat & HSR_RISC_PAUSED)
2867 risc_paused = 1;
2868 } else if (IS_FWI2_CAPABLE(ha)) {
2869 stat = RD_REG_DWORD(&reg24->host_status);
2870 if (stat & HSRX_RISC_PAUSED)
2871 risc_paused = 1;
2872 }
2873 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2874
2875 if (risc_paused) {
2876 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2877 "Dumping firmware!\n");
2878 ha->isp_ops->fw_dump(ha, 0);
2879
2880 return PCI_ERS_RESULT_NEED_RESET;
2881 } else
2882 return PCI_ERS_RESULT_RECOVERED;
2883 }
2884
2885 static pci_ers_result_t
2886 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2887 {
2888 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2889 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2890
2891 if (pci_enable_device(pdev)) {
2892 qla_printk(KERN_WARNING, ha,
2893 "Can't re-enable PCI device after reset.\n");
2894
2895 return ret;
2896 }
2897 pci_set_master(pdev);
2898
2899 if (ha->isp_ops->pci_config(ha))
2900 return ret;
2901
2902 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2903 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2904 ret = PCI_ERS_RESULT_RECOVERED;
2905 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2906
2907 return ret;
2908 }
2909
2910 static void
2911 qla2xxx_pci_resume(struct pci_dev *pdev)
2912 {
2913 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2914 int ret;
2915
2916 ret = qla2x00_wait_for_hba_online(ha);
2917 if (ret != QLA_SUCCESS) {
2918 qla_printk(KERN_ERR, ha,
2919 "the device failed to resume I/O "
2920 "from slot/link_reset");
2921 }
2922 pci_cleanup_aer_uncorrect_error_status(pdev);
2923 }
2924
2925 static struct pci_error_handlers qla2xxx_err_handler = {
2926 .error_detected = qla2xxx_pci_error_detected,
2927 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2928 .slot_reset = qla2xxx_pci_slot_reset,
2929 .resume = qla2xxx_pci_resume,
2930 };
2931
2932 static struct pci_device_id qla2xxx_pci_tbl[] = {
2933 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2934 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2935 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2936 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2937 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2938 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2939 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2940 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2941 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2942 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2943 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2944 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2945 { 0 },
2946 };
2947 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2948
2949 static struct pci_driver qla2xxx_pci_driver = {
2950 .name = QLA2XXX_DRIVER_NAME,
2951 .driver = {
2952 .owner = THIS_MODULE,
2953 },
2954 .id_table = qla2xxx_pci_tbl,
2955 .probe = qla2x00_probe_one,
2956 .remove = __devexit_p(qla2x00_remove_one),
2957 .err_handler = &qla2xxx_err_handler,
2958 };
2959
2960 /**
2961 * qla2x00_module_init - Module initialization.
2962 **/
2963 static int __init
2964 qla2x00_module_init(void)
2965 {
2966 int ret = 0;
2967
2968 /* Allocate cache for SRBs. */
2969 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2970 SLAB_HWCACHE_ALIGN, NULL);
2971 if (srb_cachep == NULL) {
2972 printk(KERN_ERR
2973 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2974 return -ENOMEM;
2975 }
2976
2977 /* Derive version string. */
2978 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2979 if (ql2xextended_error_logging)
2980 strcat(qla2x00_version_str, "-debug");
2981
2982 qla2xxx_transport_template =
2983 fc_attach_transport(&qla2xxx_transport_functions);
2984 if (!qla2xxx_transport_template) {
2985 kmem_cache_destroy(srb_cachep);
2986 return -ENODEV;
2987 }
2988 qla2xxx_transport_vport_template =
2989 fc_attach_transport(&qla2xxx_transport_vport_functions);
2990 if (!qla2xxx_transport_vport_template) {
2991 kmem_cache_destroy(srb_cachep);
2992 fc_release_transport(qla2xxx_transport_template);
2993 return -ENODEV;
2994 }
2995
2996 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2997 ret = pci_register_driver(&qla2xxx_pci_driver);
2998 if (ret) {
2999 kmem_cache_destroy(srb_cachep);
3000 fc_release_transport(qla2xxx_transport_template);
3001 fc_release_transport(qla2xxx_transport_vport_template);
3002 }
3003 return ret;
3004 }
3005
3006 /**
3007 * qla2x00_module_exit - Module cleanup.
3008 **/
3009 static void __exit
3010 qla2x00_module_exit(void)
3011 {
3012 pci_unregister_driver(&qla2xxx_pci_driver);
3013 qla2x00_release_firmware();
3014 kmem_cache_destroy(srb_cachep);
3015 fc_release_transport(qla2xxx_transport_template);
3016 fc_release_transport(qla2xxx_transport_vport_template);
3017 }
3018
3019 module_init(qla2x00_module_init);
3020 module_exit(qla2x00_module_exit);
3021
3022 MODULE_AUTHOR("QLogic Corporation");
3023 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3024 MODULE_LICENSE("GPL");
3025 MODULE_VERSION(QLA2XXX_VERSION);
3026 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3027 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3028 MODULE_FIRMWARE(FW_FILE_ISP2300);
3029 MODULE_FIRMWARE(FW_FILE_ISP2322);
3030 MODULE_FIRMWARE(FW_FILE_ISP24XX);
kernel source for telekom puls (alcatel/mediatek)