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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[GitHub/LineageOS/android_kernel_samsung_universal7580.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_device_reset(scsi_qla_host_t *, fc_port_t *);
109
110 static int qla2x00_change_queue_depth(struct scsi_device *, int);
111 static int qla2x00_change_queue_type(struct scsi_device *, int);
112
113 static struct scsi_host_template qla2x00_driver_template = {
114 .module = THIS_MODULE,
115 .name = QLA2XXX_DRIVER_NAME,
116 .queuecommand = qla2x00_queuecommand,
117
118 .eh_abort_handler = qla2xxx_eh_abort,
119 .eh_device_reset_handler = qla2xxx_eh_device_reset,
120 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
121 .eh_host_reset_handler = qla2xxx_eh_host_reset,
122
123 .slave_configure = qla2xxx_slave_configure,
124
125 .slave_alloc = qla2xxx_slave_alloc,
126 .slave_destroy = qla2xxx_slave_destroy,
127 .scan_finished = qla2xxx_scan_finished,
128 .scan_start = qla2xxx_scan_start,
129 .change_queue_depth = qla2x00_change_queue_depth,
130 .change_queue_type = qla2x00_change_queue_type,
131 .this_id = -1,
132 .cmd_per_lun = 3,
133 .use_clustering = ENABLE_CLUSTERING,
134 .use_sg_chaining = ENABLE_SG_CHAINING,
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 .use_sg_chaining = ENABLE_SG_CHAINING,
167 .sg_tablesize = SG_ALL,
168
169 .max_sectors = 0xFFFF,
170 .shost_attrs = qla2x00_host_attrs,
171 };
172
173 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
174 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
175
176 /* TODO Convert to inlines
177 *
178 * Timer routines
179 */
180
181 __inline__ void
182 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
183 {
184 init_timer(&ha->timer);
185 ha->timer.expires = jiffies + interval * HZ;
186 ha->timer.data = (unsigned long)ha;
187 ha->timer.function = (void (*)(unsigned long))func;
188 add_timer(&ha->timer);
189 ha->timer_active = 1;
190 }
191
192 static inline void
193 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
194 {
195 mod_timer(&ha->timer, jiffies + interval * HZ);
196 }
197
198 static __inline__ void
199 qla2x00_stop_timer(scsi_qla_host_t *ha)
200 {
201 del_timer_sync(&ha->timer);
202 ha->timer_active = 0;
203 }
204
205 static int qla2x00_do_dpc(void *data);
206
207 static void qla2x00_rst_aen(scsi_qla_host_t *);
208
209 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
210 static void qla2x00_mem_free(scsi_qla_host_t *ha);
211 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
212 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
213 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
214
215 /* -------------------------------------------------------------------------- */
216
217 static char *
218 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
219 {
220 static char *pci_bus_modes[] = {
221 "33", "66", "100", "133",
222 };
223 uint16_t pci_bus;
224
225 strcpy(str, "PCI");
226 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
227 if (pci_bus) {
228 strcat(str, "-X (");
229 strcat(str, pci_bus_modes[pci_bus]);
230 } else {
231 pci_bus = (ha->pci_attr & BIT_8) >> 8;
232 strcat(str, " (");
233 strcat(str, pci_bus_modes[pci_bus]);
234 }
235 strcat(str, " MHz)");
236
237 return (str);
238 }
239
240 static char *
241 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
242 {
243 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
244 uint32_t pci_bus;
245 int pcie_reg;
246
247 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
248 if (pcie_reg) {
249 char lwstr[6];
250 uint16_t pcie_lstat, lspeed, lwidth;
251
252 pcie_reg += 0x12;
253 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
254 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
255 lwidth = (pcie_lstat &
256 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
257
258 strcpy(str, "PCIe (");
259 if (lspeed == 1)
260 strcat(str, "2.5Gb/s ");
261 else if (lspeed == 2)
262 strcat(str, "5.0Gb/s ");
263 else
264 strcat(str, "<unknown> ");
265 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
266 strcat(str, lwstr);
267
268 return str;
269 }
270
271 strcpy(str, "PCI");
272 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
273 if (pci_bus == 0 || pci_bus == 8) {
274 strcat(str, " (");
275 strcat(str, pci_bus_modes[pci_bus >> 3]);
276 } else {
277 strcat(str, "-X ");
278 if (pci_bus & BIT_2)
279 strcat(str, "Mode 2");
280 else
281 strcat(str, "Mode 1");
282 strcat(str, " (");
283 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
284 }
285 strcat(str, " MHz)");
286
287 return str;
288 }
289
290 static char *
291 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
292 {
293 char un_str[10];
294
295 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
296 ha->fw_minor_version,
297 ha->fw_subminor_version);
298
299 if (ha->fw_attributes & BIT_9) {
300 strcat(str, "FLX");
301 return (str);
302 }
303
304 switch (ha->fw_attributes & 0xFF) {
305 case 0x7:
306 strcat(str, "EF");
307 break;
308 case 0x17:
309 strcat(str, "TP");
310 break;
311 case 0x37:
312 strcat(str, "IP");
313 break;
314 case 0x77:
315 strcat(str, "VI");
316 break;
317 default:
318 sprintf(un_str, "(%x)", ha->fw_attributes);
319 strcat(str, un_str);
320 break;
321 }
322 if (ha->fw_attributes & 0x100)
323 strcat(str, "X");
324
325 return (str);
326 }
327
328 static char *
329 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
330 {
331 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
332 ha->fw_minor_version,
333 ha->fw_subminor_version);
334
335 if (ha->fw_attributes & BIT_0)
336 strcat(str, "[Class 2] ");
337 if (ha->fw_attributes & BIT_1)
338 strcat(str, "[IP] ");
339 if (ha->fw_attributes & BIT_2)
340 strcat(str, "[Multi-ID] ");
341 if (ha->fw_attributes & BIT_3)
342 strcat(str, "[SB-2] ");
343 if (ha->fw_attributes & BIT_4)
344 strcat(str, "[T10 CRC] ");
345 if (ha->fw_attributes & BIT_5)
346 strcat(str, "[VI] ");
347 if (ha->fw_attributes & BIT_13)
348 strcat(str, "[Experimental]");
349 return str;
350 }
351
352 static inline srb_t *
353 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
354 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
355 {
356 srb_t *sp;
357
358 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
359 if (!sp)
360 return sp;
361
362 sp->ha = ha;
363 sp->fcport = fcport;
364 sp->cmd = cmd;
365 sp->flags = 0;
366 CMD_SP(cmd) = (void *)sp;
367 cmd->scsi_done = done;
368
369 return sp;
370 }
371
372 static int
373 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
374 {
375 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
376 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
377 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
378 srb_t *sp;
379 int rval;
380
381 if (unlikely(pci_channel_offline(ha->pdev))) {
382 cmd->result = DID_REQUEUE << 16;
383 goto qc_fail_command;
384 }
385
386 rval = fc_remote_port_chkready(rport);
387 if (rval) {
388 cmd->result = rval;
389 goto qc_fail_command;
390 }
391
392 /* Close window on fcport/rport state-transitioning. */
393 if (!*(fc_port_t **)rport->dd_data) {
394 cmd->result = DID_IMM_RETRY << 16;
395 goto qc_fail_command;
396 }
397
398 if (atomic_read(&fcport->state) != FCS_ONLINE) {
399 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
400 atomic_read(&ha->loop_state) == LOOP_DEAD) {
401 cmd->result = DID_NO_CONNECT << 16;
402 goto qc_fail_command;
403 }
404 goto qc_host_busy;
405 }
406
407 spin_unlock_irq(ha->host->host_lock);
408
409 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
410 if (!sp)
411 goto qc_host_busy_lock;
412
413 rval = qla2x00_start_scsi(sp);
414 if (rval != QLA_SUCCESS)
415 goto qc_host_busy_free_sp;
416
417 spin_lock_irq(ha->host->host_lock);
418
419 return 0;
420
421 qc_host_busy_free_sp:
422 qla2x00_sp_free_dma(ha, sp);
423 mempool_free(sp, ha->srb_mempool);
424
425 qc_host_busy_lock:
426 spin_lock_irq(ha->host->host_lock);
427
428 qc_host_busy:
429 return SCSI_MLQUEUE_HOST_BUSY;
430
431 qc_fail_command:
432 done(cmd);
433
434 return 0;
435 }
436
437
438 static int
439 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
440 {
441 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
442 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
443 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
444 srb_t *sp;
445 int rval;
446 scsi_qla_host_t *pha = to_qla_parent(ha);
447
448 if (unlikely(pci_channel_offline(ha->pdev))) {
449 cmd->result = DID_REQUEUE << 16;
450 goto qc24_fail_command;
451 }
452
453 rval = fc_remote_port_chkready(rport);
454 if (rval) {
455 cmd->result = rval;
456 goto qc24_fail_command;
457 }
458
459 /* Close window on fcport/rport state-transitioning. */
460 if (!*(fc_port_t **)rport->dd_data) {
461 cmd->result = DID_IMM_RETRY << 16;
462 goto qc24_fail_command;
463 }
464
465 if (atomic_read(&fcport->state) != FCS_ONLINE) {
466 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
467 atomic_read(&pha->loop_state) == LOOP_DEAD) {
468 cmd->result = DID_NO_CONNECT << 16;
469 goto qc24_fail_command;
470 }
471 goto qc24_host_busy;
472 }
473
474 spin_unlock_irq(ha->host->host_lock);
475
476 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
477 if (!sp)
478 goto qc24_host_busy_lock;
479
480 rval = qla24xx_start_scsi(sp);
481 if (rval != QLA_SUCCESS)
482 goto qc24_host_busy_free_sp;
483
484 spin_lock_irq(ha->host->host_lock);
485
486 return 0;
487
488 qc24_host_busy_free_sp:
489 qla2x00_sp_free_dma(pha, sp);
490 mempool_free(sp, pha->srb_mempool);
491
492 qc24_host_busy_lock:
493 spin_lock_irq(ha->host->host_lock);
494
495 qc24_host_busy:
496 return SCSI_MLQUEUE_HOST_BUSY;
497
498 qc24_fail_command:
499 done(cmd);
500
501 return 0;
502 }
503
504
505 /*
506 * qla2x00_eh_wait_on_command
507 * Waits for the command to be returned by the Firmware for some
508 * max time.
509 *
510 * Input:
511 * ha = actual ha whose done queue will contain the command
512 * returned by firmware.
513 * cmd = Scsi Command to wait on.
514 * flag = Abort/Reset(Bus or Device Reset)
515 *
516 * Return:
517 * Not Found : 0
518 * Found : 1
519 */
520 static int
521 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
522 {
523 #define ABORT_POLLING_PERIOD 1000
524 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
525 unsigned long wait_iter = ABORT_WAIT_ITER;
526 int ret = QLA_SUCCESS;
527
528 while (CMD_SP(cmd)) {
529 msleep(ABORT_POLLING_PERIOD);
530
531 if (--wait_iter)
532 break;
533 }
534 if (CMD_SP(cmd))
535 ret = QLA_FUNCTION_FAILED;
536
537 return ret;
538 }
539
540 /*
541 * qla2x00_wait_for_hba_online
542 * Wait till the HBA is online after going through
543 * <= MAX_RETRIES_OF_ISP_ABORT or
544 * finally HBA is disabled ie marked offline
545 *
546 * Input:
547 * ha - pointer to host adapter structure
548 *
549 * Note:
550 * Does context switching-Release SPIN_LOCK
551 * (if any) before calling this routine.
552 *
553 * Return:
554 * Success (Adapter is online) : 0
555 * Failed (Adapter is offline/disabled) : 1
556 */
557 int
558 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
559 {
560 int return_status;
561 unsigned long wait_online;
562 scsi_qla_host_t *pha = to_qla_parent(ha);
563
564 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
565 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
566 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
567 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
568 pha->dpc_active) && time_before(jiffies, wait_online)) {
569
570 msleep(1000);
571 }
572 if (pha->flags.online)
573 return_status = QLA_SUCCESS;
574 else
575 return_status = QLA_FUNCTION_FAILED;
576
577 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
578
579 return (return_status);
580 }
581
582 /*
583 * qla2x00_wait_for_loop_ready
584 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
585 * to be in LOOP_READY state.
586 * Input:
587 * ha - pointer to host adapter structure
588 *
589 * Note:
590 * Does context switching-Release SPIN_LOCK
591 * (if any) before calling this routine.
592 *
593 *
594 * Return:
595 * Success (LOOP_READY) : 0
596 * Failed (LOOP_NOT_READY) : 1
597 */
598 static inline int
599 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
600 {
601 int return_status = QLA_SUCCESS;
602 unsigned long loop_timeout ;
603 scsi_qla_host_t *pha = to_qla_parent(ha);
604
605 /* wait for 5 min at the max for loop to be ready */
606 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
607
608 while ((!atomic_read(&pha->loop_down_timer) &&
609 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
610 atomic_read(&pha->loop_state) != LOOP_READY) {
611 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
612 return_status = QLA_FUNCTION_FAILED;
613 break;
614 }
615 msleep(1000);
616 if (time_after_eq(jiffies, loop_timeout)) {
617 return_status = QLA_FUNCTION_FAILED;
618 break;
619 }
620 }
621 return (return_status);
622 }
623
624 static void
625 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
626 {
627 struct Scsi_Host *shost = cmnd->device->host;
628 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
629 unsigned long flags;
630
631 spin_lock_irqsave(shost->host_lock, flags);
632 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
633 spin_unlock_irqrestore(shost->host_lock, flags);
634 msleep(1000);
635 spin_lock_irqsave(shost->host_lock, flags);
636 }
637 spin_unlock_irqrestore(shost->host_lock, flags);
638 return;
639 }
640
641 /**************************************************************************
642 * qla2xxx_eh_abort
643 *
644 * Description:
645 * The abort function will abort the specified command.
646 *
647 * Input:
648 * cmd = Linux SCSI command packet to be aborted.
649 *
650 * Returns:
651 * Either SUCCESS or FAILED.
652 *
653 * Note:
654 * Only return FAILED if command not returned by firmware.
655 **************************************************************************/
656 static int
657 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
658 {
659 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
660 srb_t *sp;
661 int ret, i;
662 unsigned int id, lun;
663 unsigned long serial;
664 unsigned long flags;
665 int wait = 0;
666 scsi_qla_host_t *pha = to_qla_parent(ha);
667
668 qla2x00_block_error_handler(cmd);
669
670 if (!CMD_SP(cmd))
671 return SUCCESS;
672
673 ret = SUCCESS;
674
675 id = cmd->device->id;
676 lun = cmd->device->lun;
677 serial = cmd->serial_number;
678
679 /* Check active list for command command. */
680 spin_lock_irqsave(&pha->hardware_lock, flags);
681 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
682 sp = pha->outstanding_cmds[i];
683
684 if (sp == NULL)
685 continue;
686
687 if (sp->cmd != cmd)
688 continue;
689
690 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
691 __func__, ha->host_no, sp, serial));
692 DEBUG3(qla2x00_print_scsi_cmd(cmd));
693
694 spin_unlock_irqrestore(&pha->hardware_lock, flags);
695 if (ha->isp_ops->abort_command(ha, sp)) {
696 DEBUG2(printk("%s(%ld): abort_command "
697 "mbx failed.\n", __func__, ha->host_no));
698 } else {
699 DEBUG3(printk("%s(%ld): abort_command "
700 "mbx success.\n", __func__, ha->host_no));
701 wait = 1;
702 }
703 spin_lock_irqsave(&pha->hardware_lock, flags);
704
705 break;
706 }
707 spin_unlock_irqrestore(&pha->hardware_lock, flags);
708
709 /* Wait for the command to be returned. */
710 if (wait) {
711 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
712 qla_printk(KERN_ERR, ha,
713 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
714 "%x.\n", ha->host_no, id, lun, serial, ret);
715 ret = FAILED;
716 }
717 }
718
719 qla_printk(KERN_INFO, ha,
720 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
721 ha->host_no, id, lun, wait, serial, ret);
722
723 return ret;
724 }
725
726 /**************************************************************************
727 * qla2x00_eh_wait_for_pending_target_commands
728 *
729 * Description:
730 * Waits for all the commands to come back from the specified target.
731 *
732 * Input:
733 * ha - pointer to scsi_qla_host structure.
734 * t - target
735 * Returns:
736 * Either SUCCESS or FAILED.
737 *
738 * Note:
739 **************************************************************************/
740 static int
741 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
742 {
743 int cnt;
744 int status;
745 srb_t *sp;
746 struct scsi_cmnd *cmd;
747 unsigned long flags;
748 scsi_qla_host_t *pha = to_qla_parent(ha);
749
750 status = 0;
751
752 /*
753 * Waiting for all commands for the designated target in the active
754 * array
755 */
756 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
757 spin_lock_irqsave(&pha->hardware_lock, flags);
758 sp = pha->outstanding_cmds[cnt];
759 if (sp) {
760 cmd = sp->cmd;
761 spin_unlock_irqrestore(&pha->hardware_lock, flags);
762 if (cmd->device->id == t &&
763 ha->vp_idx == sp->ha->vp_idx) {
764 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
765 status = 1;
766 break;
767 }
768 }
769 } else {
770 spin_unlock_irqrestore(&pha->hardware_lock, flags);
771 }
772 }
773 return (status);
774 }
775
776
777 /**************************************************************************
778 * qla2xxx_eh_device_reset
779 *
780 * Description:
781 * The device reset function will reset the target and abort any
782 * executing commands.
783 *
784 * NOTE: The use of SP is undefined within this context. Do *NOT*
785 * attempt to use this value, even if you determine it is
786 * non-null.
787 *
788 * Input:
789 * cmd = Linux SCSI command packet of the command that cause the
790 * bus device reset.
791 *
792 * Returns:
793 * SUCCESS/FAILURE (defined as macro in scsi.h).
794 *
795 **************************************************************************/
796 static int
797 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
798 {
799 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
800 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
801 int ret = FAILED;
802 unsigned int id, lun;
803 unsigned long serial;
804
805 qla2x00_block_error_handler(cmd);
806
807 id = cmd->device->id;
808 lun = cmd->device->lun;
809 serial = cmd->serial_number;
810
811 if (!fcport)
812 return ret;
813
814 qla_printk(KERN_INFO, ha,
815 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
816
817 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
818 goto eh_dev_reset_done;
819
820 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
821 if (qla2x00_device_reset(ha, fcport) == 0)
822 ret = SUCCESS;
823
824 #if defined(LOGOUT_AFTER_DEVICE_RESET)
825 if (ret == SUCCESS) {
826 if (fcport->flags & FC_FABRIC_DEVICE) {
827 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
828 qla2x00_mark_device_lost(ha, fcport, 0, 0);
829 }
830 }
831 #endif
832 } else {
833 DEBUG2(printk(KERN_INFO
834 "%s failed: loop not ready\n",__func__));
835 }
836
837 if (ret == FAILED) {
838 DEBUG3(printk("%s(%ld): device reset failed\n",
839 __func__, ha->host_no));
840 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
841 __func__);
842
843 goto eh_dev_reset_done;
844 }
845
846 /* Flush outstanding commands. */
847 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
848 ret = FAILED;
849 if (ret == FAILED) {
850 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
851 __func__, ha->host_no));
852 qla_printk(KERN_INFO, ha,
853 "%s: failed while waiting for commands\n", __func__);
854 } else
855 qla_printk(KERN_INFO, ha,
856 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
857 id, lun);
858 eh_dev_reset_done:
859 return ret;
860 }
861
862 /**************************************************************************
863 * qla2x00_eh_wait_for_pending_commands
864 *
865 * Description:
866 * Waits for all the commands to come back from the specified host.
867 *
868 * Input:
869 * ha - pointer to scsi_qla_host structure.
870 *
871 * Returns:
872 * 1 : SUCCESS
873 * 0 : FAILED
874 *
875 * Note:
876 **************************************************************************/
877 static int
878 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
879 {
880 int cnt;
881 int status;
882 srb_t *sp;
883 struct scsi_cmnd *cmd;
884 unsigned long flags;
885
886 status = 1;
887
888 /*
889 * Waiting for all commands for the designated target in the active
890 * array
891 */
892 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
893 spin_lock_irqsave(&ha->hardware_lock, flags);
894 sp = ha->outstanding_cmds[cnt];
895 if (sp) {
896 cmd = sp->cmd;
897 spin_unlock_irqrestore(&ha->hardware_lock, flags);
898 status = qla2x00_eh_wait_on_command(ha, cmd);
899 if (status == 0)
900 break;
901 }
902 else {
903 spin_unlock_irqrestore(&ha->hardware_lock, flags);
904 }
905 }
906 return (status);
907 }
908
909
910 /**************************************************************************
911 * qla2xxx_eh_bus_reset
912 *
913 * Description:
914 * The bus reset function will reset the bus and abort any executing
915 * commands.
916 *
917 * Input:
918 * cmd = Linux SCSI command packet of the command that cause the
919 * bus reset.
920 *
921 * Returns:
922 * SUCCESS/FAILURE (defined as macro in scsi.h).
923 *
924 **************************************************************************/
925 static int
926 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
927 {
928 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
929 scsi_qla_host_t *pha = to_qla_parent(ha);
930 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
931 int ret = FAILED;
932 unsigned int id, lun;
933 unsigned long serial;
934
935 qla2x00_block_error_handler(cmd);
936
937 id = cmd->device->id;
938 lun = cmd->device->lun;
939 serial = cmd->serial_number;
940
941 if (!fcport)
942 return ret;
943
944 qla_printk(KERN_INFO, ha,
945 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
946
947 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
948 DEBUG2(printk("%s failed:board disabled\n",__func__));
949 goto eh_bus_reset_done;
950 }
951
952 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
953 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
954 ret = SUCCESS;
955 }
956 if (ret == FAILED)
957 goto eh_bus_reset_done;
958
959 /* Flush outstanding commands. */
960 if (!qla2x00_eh_wait_for_pending_commands(pha))
961 ret = FAILED;
962
963 eh_bus_reset_done:
964 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
965 (ret == FAILED) ? "failed" : "succeded");
966
967 return ret;
968 }
969
970 /**************************************************************************
971 * qla2xxx_eh_host_reset
972 *
973 * Description:
974 * The reset function will reset the Adapter.
975 *
976 * Input:
977 * cmd = Linux SCSI command packet of the command that cause the
978 * adapter reset.
979 *
980 * Returns:
981 * Either SUCCESS or FAILED.
982 *
983 * Note:
984 **************************************************************************/
985 static int
986 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
987 {
988 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
989 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
990 int ret = FAILED;
991 unsigned int id, lun;
992 unsigned long serial;
993 scsi_qla_host_t *pha = to_qla_parent(ha);
994
995 qla2x00_block_error_handler(cmd);
996
997 id = cmd->device->id;
998 lun = cmd->device->lun;
999 serial = cmd->serial_number;
1000
1001 if (!fcport)
1002 return ret;
1003
1004 qla_printk(KERN_INFO, ha,
1005 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1006
1007 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1008 goto eh_host_reset_lock;
1009
1010 /*
1011 * Fixme-may be dpc thread is active and processing
1012 * loop_resync,so wait a while for it to
1013 * be completed and then issue big hammer.Otherwise
1014 * it may cause I/O failure as big hammer marks the
1015 * devices as lost kicking of the port_down_timer
1016 * while dpc is stuck for the mailbox to complete.
1017 */
1018 qla2x00_wait_for_loop_ready(ha);
1019 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1020 if (qla2x00_abort_isp(pha)) {
1021 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1022 /* failed. schedule dpc to try */
1023 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1024
1025 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1026 goto eh_host_reset_lock;
1027 }
1028 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1029
1030 /* Waiting for our command in done_queue to be returned to OS.*/
1031 if (qla2x00_eh_wait_for_pending_commands(pha))
1032 ret = SUCCESS;
1033
1034 if (ha->parent)
1035 qla2x00_vp_abort_isp(ha);
1036
1037 eh_host_reset_lock:
1038 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1039 (ret == FAILED) ? "failed" : "succeded");
1040
1041 return ret;
1042 }
1043
1044 /*
1045 * qla2x00_loop_reset
1046 * Issue loop reset.
1047 *
1048 * Input:
1049 * ha = adapter block pointer.
1050 *
1051 * Returns:
1052 * 0 = success
1053 */
1054 int
1055 qla2x00_loop_reset(scsi_qla_host_t *ha)
1056 {
1057 int ret;
1058 struct fc_port *fcport;
1059
1060 if (ha->flags.enable_lip_full_login) {
1061 ret = qla2x00_full_login_lip(ha);
1062 if (ret != QLA_SUCCESS) {
1063 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1064 "full_login_lip=%d.\n", __func__, ha->host_no,
1065 ret));
1066 }
1067 atomic_set(&ha->loop_state, LOOP_DOWN);
1068 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1069 qla2x00_mark_all_devices_lost(ha, 0);
1070 qla2x00_wait_for_loop_ready(ha);
1071 }
1072
1073 if (ha->flags.enable_lip_reset) {
1074 ret = qla2x00_lip_reset(ha);
1075 if (ret != QLA_SUCCESS) {
1076 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1077 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1078 }
1079 qla2x00_wait_for_loop_ready(ha);
1080 }
1081
1082 if (ha->flags.enable_target_reset) {
1083 list_for_each_entry(fcport, &ha->fcports, list) {
1084 if (fcport->port_type != FCT_TARGET)
1085 continue;
1086
1087 ret = qla2x00_device_reset(ha, fcport);
1088 if (ret != QLA_SUCCESS) {
1089 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1090 "target_reset=%d d_id=%x.\n", __func__,
1091 ha->host_no, ret, fcport->d_id.b24));
1092 }
1093 }
1094 }
1095
1096 /* Issue marker command only when we are going to start the I/O */
1097 ha->marker_needed = 1;
1098
1099 return QLA_SUCCESS;
1100 }
1101
1102 /*
1103 * qla2x00_device_reset
1104 * Issue bus device reset message to the target.
1105 *
1106 * Input:
1107 * ha = adapter block pointer.
1108 * t = SCSI ID.
1109 * TARGET_QUEUE_LOCK must be released.
1110 * ADAPTER_STATE_LOCK must be released.
1111 *
1112 * Context:
1113 * Kernel context.
1114 */
1115 static int
1116 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1117 {
1118 /* Abort Target command will clear Reservation */
1119 return ha->isp_ops->abort_target(reset_fcport);
1120 }
1121
1122 static int
1123 qla2xxx_slave_alloc(struct scsi_device *sdev)
1124 {
1125 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1126
1127 if (!rport || fc_remote_port_chkready(rport))
1128 return -ENXIO;
1129
1130 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1131
1132 return 0;
1133 }
1134
1135 static int
1136 qla2xxx_slave_configure(struct scsi_device *sdev)
1137 {
1138 scsi_qla_host_t *ha = shost_priv(sdev->host);
1139 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1140
1141 if (sdev->tagged_supported)
1142 scsi_activate_tcq(sdev, ha->max_q_depth);
1143 else
1144 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1145
1146 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1147
1148 return 0;
1149 }
1150
1151 static void
1152 qla2xxx_slave_destroy(struct scsi_device *sdev)
1153 {
1154 sdev->hostdata = NULL;
1155 }
1156
1157 static int
1158 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1159 {
1160 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1161 return sdev->queue_depth;
1162 }
1163
1164 static int
1165 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1166 {
1167 if (sdev->tagged_supported) {
1168 scsi_set_tag_type(sdev, tag_type);
1169 if (tag_type)
1170 scsi_activate_tcq(sdev, sdev->queue_depth);
1171 else
1172 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1173 } else
1174 tag_type = 0;
1175
1176 return tag_type;
1177 }
1178
1179 /**
1180 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1181 * @ha: HA context
1182 *
1183 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1184 * supported addressing method.
1185 */
1186 static void
1187 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1188 {
1189 /* Assume a 32bit DMA mask. */
1190 ha->flags.enable_64bit_addressing = 0;
1191
1192 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1193 /* Any upper-dword bits set? */
1194 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1195 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1196 /* Ok, a 64bit DMA mask is applicable. */
1197 ha->flags.enable_64bit_addressing = 1;
1198 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1199 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1200 return;
1201 }
1202 }
1203
1204 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1205 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1206 }
1207
1208 static void
1209 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1210 {
1211 unsigned long flags = 0;
1212 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1213
1214 spin_lock_irqsave(&ha->hardware_lock, flags);
1215 ha->interrupts_on = 1;
1216 /* enable risc and host interrupts */
1217 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1218 RD_REG_WORD(&reg->ictrl);
1219 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1220
1221 }
1222
1223 static void
1224 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1225 {
1226 unsigned long flags = 0;
1227 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1228
1229 spin_lock_irqsave(&ha->hardware_lock, flags);
1230 ha->interrupts_on = 0;
1231 /* disable risc and host interrupts */
1232 WRT_REG_WORD(&reg->ictrl, 0);
1233 RD_REG_WORD(&reg->ictrl);
1234 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1235 }
1236
1237 static void
1238 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1239 {
1240 unsigned long flags = 0;
1241 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1242
1243 spin_lock_irqsave(&ha->hardware_lock, flags);
1244 ha->interrupts_on = 1;
1245 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1246 RD_REG_DWORD(&reg->ictrl);
1247 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1248 }
1249
1250 static void
1251 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1252 {
1253 unsigned long flags = 0;
1254 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1255
1256 spin_lock_irqsave(&ha->hardware_lock, flags);
1257 ha->interrupts_on = 0;
1258 WRT_REG_DWORD(&reg->ictrl, 0);
1259 RD_REG_DWORD(&reg->ictrl);
1260 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1261 }
1262
1263 static struct isp_operations qla2100_isp_ops = {
1264 .pci_config = qla2100_pci_config,
1265 .reset_chip = qla2x00_reset_chip,
1266 .chip_diag = qla2x00_chip_diag,
1267 .config_rings = qla2x00_config_rings,
1268 .reset_adapter = qla2x00_reset_adapter,
1269 .nvram_config = qla2x00_nvram_config,
1270 .update_fw_options = qla2x00_update_fw_options,
1271 .load_risc = qla2x00_load_risc,
1272 .pci_info_str = qla2x00_pci_info_str,
1273 .fw_version_str = qla2x00_fw_version_str,
1274 .intr_handler = qla2100_intr_handler,
1275 .enable_intrs = qla2x00_enable_intrs,
1276 .disable_intrs = qla2x00_disable_intrs,
1277 .abort_command = qla2x00_abort_command,
1278 .abort_target = qla2x00_abort_target,
1279 .fabric_login = qla2x00_login_fabric,
1280 .fabric_logout = qla2x00_fabric_logout,
1281 .calc_req_entries = qla2x00_calc_iocbs_32,
1282 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1283 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1284 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1285 .read_nvram = qla2x00_read_nvram_data,
1286 .write_nvram = qla2x00_write_nvram_data,
1287 .fw_dump = qla2100_fw_dump,
1288 .beacon_on = NULL,
1289 .beacon_off = NULL,
1290 .beacon_blink = NULL,
1291 .read_optrom = qla2x00_read_optrom_data,
1292 .write_optrom = qla2x00_write_optrom_data,
1293 .get_flash_version = qla2x00_get_flash_version,
1294 };
1295
1296 static struct isp_operations qla2300_isp_ops = {
1297 .pci_config = qla2300_pci_config,
1298 .reset_chip = qla2x00_reset_chip,
1299 .chip_diag = qla2x00_chip_diag,
1300 .config_rings = qla2x00_config_rings,
1301 .reset_adapter = qla2x00_reset_adapter,
1302 .nvram_config = qla2x00_nvram_config,
1303 .update_fw_options = qla2x00_update_fw_options,
1304 .load_risc = qla2x00_load_risc,
1305 .pci_info_str = qla2x00_pci_info_str,
1306 .fw_version_str = qla2x00_fw_version_str,
1307 .intr_handler = qla2300_intr_handler,
1308 .enable_intrs = qla2x00_enable_intrs,
1309 .disable_intrs = qla2x00_disable_intrs,
1310 .abort_command = qla2x00_abort_command,
1311 .abort_target = qla2x00_abort_target,
1312 .fabric_login = qla2x00_login_fabric,
1313 .fabric_logout = qla2x00_fabric_logout,
1314 .calc_req_entries = qla2x00_calc_iocbs_32,
1315 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1316 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1317 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1318 .read_nvram = qla2x00_read_nvram_data,
1319 .write_nvram = qla2x00_write_nvram_data,
1320 .fw_dump = qla2300_fw_dump,
1321 .beacon_on = qla2x00_beacon_on,
1322 .beacon_off = qla2x00_beacon_off,
1323 .beacon_blink = qla2x00_beacon_blink,
1324 .read_optrom = qla2x00_read_optrom_data,
1325 .write_optrom = qla2x00_write_optrom_data,
1326 .get_flash_version = qla2x00_get_flash_version,
1327 };
1328
1329 static struct isp_operations qla24xx_isp_ops = {
1330 .pci_config = qla24xx_pci_config,
1331 .reset_chip = qla24xx_reset_chip,
1332 .chip_diag = qla24xx_chip_diag,
1333 .config_rings = qla24xx_config_rings,
1334 .reset_adapter = qla24xx_reset_adapter,
1335 .nvram_config = qla24xx_nvram_config,
1336 .update_fw_options = qla24xx_update_fw_options,
1337 .load_risc = qla24xx_load_risc,
1338 .pci_info_str = qla24xx_pci_info_str,
1339 .fw_version_str = qla24xx_fw_version_str,
1340 .intr_handler = qla24xx_intr_handler,
1341 .enable_intrs = qla24xx_enable_intrs,
1342 .disable_intrs = qla24xx_disable_intrs,
1343 .abort_command = qla24xx_abort_command,
1344 .abort_target = qla24xx_abort_target,
1345 .fabric_login = qla24xx_login_fabric,
1346 .fabric_logout = qla24xx_fabric_logout,
1347 .calc_req_entries = NULL,
1348 .build_iocbs = NULL,
1349 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1350 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1351 .read_nvram = qla24xx_read_nvram_data,
1352 .write_nvram = qla24xx_write_nvram_data,
1353 .fw_dump = qla24xx_fw_dump,
1354 .beacon_on = qla24xx_beacon_on,
1355 .beacon_off = qla24xx_beacon_off,
1356 .beacon_blink = qla24xx_beacon_blink,
1357 .read_optrom = qla24xx_read_optrom_data,
1358 .write_optrom = qla24xx_write_optrom_data,
1359 .get_flash_version = qla24xx_get_flash_version,
1360 };
1361
1362 static struct isp_operations qla25xx_isp_ops = {
1363 .pci_config = qla25xx_pci_config,
1364 .reset_chip = qla24xx_reset_chip,
1365 .chip_diag = qla24xx_chip_diag,
1366 .config_rings = qla24xx_config_rings,
1367 .reset_adapter = qla24xx_reset_adapter,
1368 .nvram_config = qla24xx_nvram_config,
1369 .update_fw_options = qla24xx_update_fw_options,
1370 .load_risc = qla24xx_load_risc,
1371 .pci_info_str = qla24xx_pci_info_str,
1372 .fw_version_str = qla24xx_fw_version_str,
1373 .intr_handler = qla24xx_intr_handler,
1374 .enable_intrs = qla24xx_enable_intrs,
1375 .disable_intrs = qla24xx_disable_intrs,
1376 .abort_command = qla24xx_abort_command,
1377 .abort_target = qla24xx_abort_target,
1378 .fabric_login = qla24xx_login_fabric,
1379 .fabric_logout = qla24xx_fabric_logout,
1380 .calc_req_entries = NULL,
1381 .build_iocbs = NULL,
1382 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1383 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1384 .read_nvram = qla25xx_read_nvram_data,
1385 .write_nvram = qla25xx_write_nvram_data,
1386 .fw_dump = qla25xx_fw_dump,
1387 .beacon_on = qla24xx_beacon_on,
1388 .beacon_off = qla24xx_beacon_off,
1389 .beacon_blink = qla24xx_beacon_blink,
1390 .read_optrom = qla25xx_read_optrom_data,
1391 .write_optrom = qla24xx_write_optrom_data,
1392 .get_flash_version = qla24xx_get_flash_version,
1393 };
1394
1395 static inline void
1396 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1397 {
1398 ha->device_type = DT_EXTENDED_IDS;
1399 switch (ha->pdev->device) {
1400 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1401 ha->device_type |= DT_ISP2100;
1402 ha->device_type &= ~DT_EXTENDED_IDS;
1403 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1404 break;
1405 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1406 ha->device_type |= DT_ISP2200;
1407 ha->device_type &= ~DT_EXTENDED_IDS;
1408 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1409 break;
1410 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1411 ha->device_type |= DT_ISP2300;
1412 ha->device_type |= DT_ZIO_SUPPORTED;
1413 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1414 break;
1415 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1416 ha->device_type |= DT_ISP2312;
1417 ha->device_type |= DT_ZIO_SUPPORTED;
1418 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1419 break;
1420 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1421 ha->device_type |= DT_ISP2322;
1422 ha->device_type |= DT_ZIO_SUPPORTED;
1423 if (ha->pdev->subsystem_vendor == 0x1028 &&
1424 ha->pdev->subsystem_device == 0x0170)
1425 ha->device_type |= DT_OEM_001;
1426 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1427 break;
1428 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1429 ha->device_type |= DT_ISP6312;
1430 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1431 break;
1432 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1433 ha->device_type |= DT_ISP6322;
1434 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1435 break;
1436 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1437 ha->device_type |= DT_ISP2422;
1438 ha->device_type |= DT_ZIO_SUPPORTED;
1439 ha->device_type |= DT_FWI2;
1440 ha->device_type |= DT_IIDMA;
1441 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1442 break;
1443 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1444 ha->device_type |= DT_ISP2432;
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_ISP5422:
1451 ha->device_type |= DT_ISP5422;
1452 ha->device_type |= DT_FWI2;
1453 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1454 break;
1455 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1456 ha->device_type |= DT_ISP5432;
1457 ha->device_type |= DT_FWI2;
1458 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1459 break;
1460 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1461 ha->device_type |= DT_ISP2532;
1462 ha->device_type |= DT_ZIO_SUPPORTED;
1463 ha->device_type |= DT_FWI2;
1464 ha->device_type |= DT_IIDMA;
1465 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1466 break;
1467 }
1468 }
1469
1470 static int
1471 qla2x00_iospace_config(scsi_qla_host_t *ha)
1472 {
1473 resource_size_t pio;
1474
1475 if (pci_request_selected_regions(ha->pdev, ha->bars,
1476 QLA2XXX_DRIVER_NAME)) {
1477 qla_printk(KERN_WARNING, ha,
1478 "Failed to reserve PIO/MMIO regions (%s)\n",
1479 pci_name(ha->pdev));
1480
1481 goto iospace_error_exit;
1482 }
1483 if (!(ha->bars & 1))
1484 goto skip_pio;
1485
1486 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1487 pio = pci_resource_start(ha->pdev, 0);
1488 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1489 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1490 qla_printk(KERN_WARNING, ha,
1491 "Invalid PCI I/O region size (%s)...\n",
1492 pci_name(ha->pdev));
1493 pio = 0;
1494 }
1495 } else {
1496 qla_printk(KERN_WARNING, ha,
1497 "region #0 not a PIO resource (%s)...\n",
1498 pci_name(ha->pdev));
1499 pio = 0;
1500 }
1501 ha->pio_address = pio;
1502
1503 skip_pio:
1504 /* Use MMIO operations for all accesses. */
1505 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1506 qla_printk(KERN_ERR, ha,
1507 "region #1 not an MMIO resource (%s), aborting\n",
1508 pci_name(ha->pdev));
1509 goto iospace_error_exit;
1510 }
1511 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1512 qla_printk(KERN_ERR, ha,
1513 "Invalid PCI mem region size (%s), aborting\n",
1514 pci_name(ha->pdev));
1515 goto iospace_error_exit;
1516 }
1517
1518 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1519 if (!ha->iobase) {
1520 qla_printk(KERN_ERR, ha,
1521 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1522
1523 goto iospace_error_exit;
1524 }
1525
1526 return (0);
1527
1528 iospace_error_exit:
1529 return (-ENOMEM);
1530 }
1531
1532 static void
1533 qla2xxx_scan_start(struct Scsi_Host *shost)
1534 {
1535 scsi_qla_host_t *ha = shost_priv(shost);
1536
1537 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1538 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1539 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1540 }
1541
1542 static int
1543 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1544 {
1545 scsi_qla_host_t *ha = shost_priv(shost);
1546
1547 if (!ha->host)
1548 return 1;
1549 if (time > ha->loop_reset_delay * HZ)
1550 return 1;
1551
1552 return atomic_read(&ha->loop_state) == LOOP_READY;
1553 }
1554
1555 /*
1556 * PCI driver interface
1557 */
1558 static int __devinit
1559 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1560 {
1561 int ret = -ENODEV;
1562 device_reg_t __iomem *reg;
1563 struct Scsi_Host *host;
1564 scsi_qla_host_t *ha;
1565 unsigned long flags = 0;
1566 char pci_info[30];
1567 char fw_str[30];
1568 struct scsi_host_template *sht;
1569 int bars;
1570
1571 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1572 sht = &qla2x00_driver_template;
1573 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1574 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1575 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1576 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1577 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1578 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1579 sht = &qla24xx_driver_template;
1580 }
1581
1582 if (pci_enable_device_bars(pdev, bars))
1583 goto probe_out;
1584
1585 if (pci_find_aer_capability(pdev))
1586 if (pci_enable_pcie_error_reporting(pdev))
1587 goto probe_out;
1588
1589 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1590 if (host == NULL) {
1591 printk(KERN_WARNING
1592 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1593 goto probe_disable_device;
1594 }
1595
1596 /* Clear our data area */
1597 ha = shost_priv(host);
1598 memset(ha, 0, sizeof(scsi_qla_host_t));
1599
1600 ha->pdev = pdev;
1601 ha->host = host;
1602 ha->host_no = host->host_no;
1603 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1604 ha->parent = NULL;
1605 ha->bars = bars;
1606
1607 /* Set ISP-type information. */
1608 qla2x00_set_isp_flags(ha);
1609
1610 /* Configure PCI I/O space */
1611 ret = qla2x00_iospace_config(ha);
1612 if (ret)
1613 goto probe_failed;
1614
1615 qla_printk(KERN_INFO, ha,
1616 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1617 ha->iobase);
1618
1619 spin_lock_init(&ha->hardware_lock);
1620
1621 ha->prev_topology = 0;
1622 ha->init_cb_size = sizeof(init_cb_t);
1623 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1624 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1625 ha->optrom_size = OPTROM_SIZE_2300;
1626
1627 ha->max_q_depth = MAX_Q_DEPTH;
1628 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1629 ha->max_q_depth = ql2xmaxqdepth;
1630
1631 /* Assign ISP specific operations. */
1632 if (IS_QLA2100(ha)) {
1633 host->max_id = MAX_TARGETS_2100;
1634 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1635 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1636 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1637 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1638 host->sg_tablesize = 32;
1639 ha->gid_list_info_size = 4;
1640 ha->isp_ops = &qla2100_isp_ops;
1641 } else if (IS_QLA2200(ha)) {
1642 host->max_id = MAX_TARGETS_2200;
1643 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1644 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1645 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1646 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1647 ha->gid_list_info_size = 4;
1648 ha->isp_ops = &qla2100_isp_ops;
1649 } else if (IS_QLA23XX(ha)) {
1650 host->max_id = MAX_TARGETS_2200;
1651 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1652 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1653 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1654 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1655 ha->gid_list_info_size = 6;
1656 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1657 ha->optrom_size = OPTROM_SIZE_2322;
1658 ha->isp_ops = &qla2300_isp_ops;
1659 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1660 host->max_id = MAX_TARGETS_2200;
1661 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1662 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1663 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1664 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1665 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1666 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1667 ha->gid_list_info_size = 8;
1668 ha->optrom_size = OPTROM_SIZE_24XX;
1669 ha->isp_ops = &qla24xx_isp_ops;
1670 } else if (IS_QLA25XX(ha)) {
1671 host->max_id = MAX_TARGETS_2200;
1672 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1673 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1674 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1675 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1676 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1677 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1678 ha->gid_list_info_size = 8;
1679 ha->optrom_size = OPTROM_SIZE_25XX;
1680 ha->isp_ops = &qla25xx_isp_ops;
1681 }
1682 host->can_queue = ha->request_q_length + 128;
1683
1684 /* load the F/W, read paramaters, and init the H/W */
1685 ha->instance = num_hosts;
1686
1687 init_MUTEX(&ha->vport_sem);
1688 init_completion(&ha->mbx_cmd_comp);
1689 complete(&ha->mbx_cmd_comp);
1690 init_completion(&ha->mbx_intr_comp);
1691
1692 INIT_LIST_HEAD(&ha->list);
1693 INIT_LIST_HEAD(&ha->fcports);
1694 INIT_LIST_HEAD(&ha->vp_list);
1695
1696 set_bit(0, (unsigned long *) ha->vp_idx_map);
1697
1698 qla2x00_config_dma_addressing(ha);
1699 if (qla2x00_mem_alloc(ha)) {
1700 qla_printk(KERN_WARNING, ha,
1701 "[ERROR] Failed to allocate memory for adapter\n");
1702
1703 ret = -ENOMEM;
1704 goto probe_failed;
1705 }
1706
1707 if (qla2x00_initialize_adapter(ha)) {
1708 qla_printk(KERN_WARNING, ha,
1709 "Failed to initialize adapter\n");
1710
1711 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1712 "Adapter flags %x.\n",
1713 ha->host_no, ha->device_flags));
1714
1715 ret = -ENODEV;
1716 goto probe_failed;
1717 }
1718
1719 /*
1720 * Startup the kernel thread for this host adapter
1721 */
1722 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1723 "%s_dpc", ha->host_str);
1724 if (IS_ERR(ha->dpc_thread)) {
1725 qla_printk(KERN_WARNING, ha,
1726 "Unable to start DPC thread!\n");
1727 ret = PTR_ERR(ha->dpc_thread);
1728 goto probe_failed;
1729 }
1730
1731 host->this_id = 255;
1732 host->cmd_per_lun = 3;
1733 host->unique_id = ha->instance;
1734 host->max_cmd_len = MAX_CMDSZ;
1735 host->max_channel = MAX_BUSES - 1;
1736 host->max_lun = MAX_LUNS;
1737 host->transportt = qla2xxx_transport_template;
1738
1739 ret = qla2x00_request_irqs(ha);
1740 if (ret)
1741 goto probe_failed;
1742
1743 /* Initialized the timer */
1744 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1745
1746 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1747 ha->host_no, ha));
1748
1749 ha->isp_ops->disable_intrs(ha);
1750
1751 spin_lock_irqsave(&ha->hardware_lock, flags);
1752 reg = ha->iobase;
1753 if (IS_FWI2_CAPABLE(ha)) {
1754 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1755 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1756 } else {
1757 WRT_REG_WORD(&reg->isp.semaphore, 0);
1758 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1759 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1760
1761 /* Enable proper parity */
1762 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1763 if (IS_QLA2300(ha))
1764 /* SRAM parity */
1765 WRT_REG_WORD(&reg->isp.hccr,
1766 (HCCR_ENABLE_PARITY + 0x1));
1767 else
1768 /* SRAM, Instruction RAM and GP RAM parity */
1769 WRT_REG_WORD(&reg->isp.hccr,
1770 (HCCR_ENABLE_PARITY + 0x7));
1771 }
1772 }
1773 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1774
1775 ha->isp_ops->enable_intrs(ha);
1776
1777 pci_set_drvdata(pdev, ha);
1778
1779 ha->flags.init_done = 1;
1780 ha->flags.online = 1;
1781
1782 num_hosts++;
1783
1784 ret = scsi_add_host(host, &pdev->dev);
1785 if (ret)
1786 goto probe_failed;
1787
1788 scsi_scan_host(host);
1789
1790 qla2x00_alloc_sysfs_attr(ha);
1791
1792 qla2x00_init_host_attr(ha);
1793
1794 qla2x00_dfs_setup(ha);
1795
1796 qla_printk(KERN_INFO, ha, "\n"
1797 " QLogic Fibre Channel HBA Driver: %s\n"
1798 " QLogic %s - %s\n"
1799 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1800 qla2x00_version_str, ha->model_number,
1801 ha->model_desc ? ha->model_desc: "", pdev->device,
1802 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1803 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1804 ha->isp_ops->fw_version_str(ha, fw_str));
1805
1806 return 0;
1807
1808 probe_failed:
1809 qla2x00_free_device(ha);
1810
1811 scsi_host_put(host);
1812
1813 probe_disable_device:
1814 pci_disable_device(pdev);
1815
1816 probe_out:
1817 return ret;
1818 }
1819
1820 static void
1821 qla2x00_remove_one(struct pci_dev *pdev)
1822 {
1823 scsi_qla_host_t *ha;
1824
1825 ha = pci_get_drvdata(pdev);
1826
1827 qla2x00_dfs_remove(ha);
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->flags.fce_enabled)
1863 qla2x00_disable_fce_trace(ha, NULL, NULL);
1864
1865 if (ha->eft)
1866 qla2x00_disable_eft_trace(ha);
1867
1868 ha->flags.online = 0;
1869
1870 /* Stop currently executing firmware. */
1871 qla2x00_try_to_stop_firmware(ha);
1872
1873 /* turn-off interrupts on the card */
1874 if (ha->interrupts_on)
1875 ha->isp_ops->disable_intrs(ha);
1876
1877 qla2x00_mem_free(ha);
1878
1879 qla2x00_free_irqs(ha);
1880
1881 /* release io space registers */
1882 if (ha->iobase)
1883 iounmap(ha->iobase);
1884 pci_release_selected_regions(ha->pdev, ha->bars);
1885 }
1886
1887 static inline void
1888 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1889 int defer)
1890 {
1891 unsigned long flags;
1892 struct fc_rport *rport;
1893
1894 if (!fcport->rport)
1895 return;
1896
1897 rport = fcport->rport;
1898 if (defer) {
1899 spin_lock_irqsave(&fcport->rport_lock, flags);
1900 fcport->drport = rport;
1901 fcport->rport = NULL;
1902 *(fc_port_t **)rport->dd_data = NULL;
1903 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1904 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1905 } else {
1906 spin_lock_irqsave(&fcport->rport_lock, flags);
1907 fcport->rport = NULL;
1908 *(fc_port_t **)rport->dd_data = NULL;
1909 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1910 fc_remote_port_delete(rport);
1911 }
1912 }
1913
1914 /*
1915 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1916 *
1917 * Input: ha = adapter block pointer. fcport = port structure pointer.
1918 *
1919 * Return: None.
1920 *
1921 * Context:
1922 */
1923 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1924 int do_login, int defer)
1925 {
1926 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1927 ha->vp_idx == fcport->vp_idx)
1928 qla2x00_schedule_rport_del(ha, fcport, defer);
1929
1930 /*
1931 * We may need to retry the login, so don't change the state of the
1932 * port but do the retries.
1933 */
1934 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1935 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1936
1937 if (!do_login)
1938 return;
1939
1940 if (fcport->login_retry == 0) {
1941 fcport->login_retry = ha->login_retry_count;
1942 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1943
1944 DEBUG(printk("scsi(%ld): Port login retry: "
1945 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1946 "id = 0x%04x retry cnt=%d\n",
1947 ha->host_no,
1948 fcport->port_name[0],
1949 fcport->port_name[1],
1950 fcport->port_name[2],
1951 fcport->port_name[3],
1952 fcport->port_name[4],
1953 fcport->port_name[5],
1954 fcport->port_name[6],
1955 fcport->port_name[7],
1956 fcport->loop_id,
1957 fcport->login_retry));
1958 }
1959 }
1960
1961 /*
1962 * qla2x00_mark_all_devices_lost
1963 * Updates fcport state when device goes offline.
1964 *
1965 * Input:
1966 * ha = adapter block pointer.
1967 * fcport = port structure pointer.
1968 *
1969 * Return:
1970 * None.
1971 *
1972 * Context:
1973 */
1974 void
1975 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1976 {
1977 fc_port_t *fcport;
1978 scsi_qla_host_t *pha = to_qla_parent(ha);
1979
1980 list_for_each_entry(fcport, &pha->fcports, list) {
1981 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1982 continue;
1983 /*
1984 * No point in marking the device as lost, if the device is
1985 * already DEAD.
1986 */
1987 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1988 continue;
1989 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1990 if (defer)
1991 qla2x00_schedule_rport_del(ha, fcport, defer);
1992 else if (ha->vp_idx == fcport->vp_idx)
1993 qla2x00_schedule_rport_del(ha, fcport, defer);
1994 }
1995 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1996 }
1997
1998 if (defer)
1999 qla2xxx_wake_dpc(ha);
2000 }
2001
2002 /*
2003 * qla2x00_mem_alloc
2004 * Allocates adapter memory.
2005 *
2006 * Returns:
2007 * 0 = success.
2008 * 1 = failure.
2009 */
2010 static uint8_t
2011 qla2x00_mem_alloc(scsi_qla_host_t *ha)
2012 {
2013 char name[16];
2014 uint8_t status = 1;
2015 int retry= 10;
2016
2017 do {
2018 /*
2019 * This will loop only once if everything goes well, else some
2020 * number of retries will be performed to get around a kernel
2021 * bug where available mem is not allocated until after a
2022 * little delay and a retry.
2023 */
2024 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2025 (ha->request_q_length + 1) * sizeof(request_t),
2026 &ha->request_dma, GFP_KERNEL);
2027 if (ha->request_ring == NULL) {
2028 qla_printk(KERN_WARNING, ha,
2029 "Memory Allocation failed - request_ring\n");
2030
2031 qla2x00_mem_free(ha);
2032 msleep(100);
2033
2034 continue;
2035 }
2036
2037 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2038 (ha->response_q_length + 1) * sizeof(response_t),
2039 &ha->response_dma, GFP_KERNEL);
2040 if (ha->response_ring == NULL) {
2041 qla_printk(KERN_WARNING, ha,
2042 "Memory Allocation failed - response_ring\n");
2043
2044 qla2x00_mem_free(ha);
2045 msleep(100);
2046
2047 continue;
2048 }
2049
2050 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2051 &ha->gid_list_dma, GFP_KERNEL);
2052 if (ha->gid_list == NULL) {
2053 qla_printk(KERN_WARNING, ha,
2054 "Memory Allocation failed - gid_list\n");
2055
2056 qla2x00_mem_free(ha);
2057 msleep(100);
2058
2059 continue;
2060 }
2061
2062 /* get consistent memory allocated for init control block */
2063 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2064 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2065 if (ha->init_cb == NULL) {
2066 qla_printk(KERN_WARNING, ha,
2067 "Memory Allocation failed - init_cb\n");
2068
2069 qla2x00_mem_free(ha);
2070 msleep(100);
2071
2072 continue;
2073 }
2074 memset(ha->init_cb, 0, ha->init_cb_size);
2075
2076 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2077 ha->host_no);
2078 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2079 DMA_POOL_SIZE, 8, 0);
2080 if (ha->s_dma_pool == NULL) {
2081 qla_printk(KERN_WARNING, ha,
2082 "Memory Allocation failed - s_dma_pool\n");
2083
2084 qla2x00_mem_free(ha);
2085 msleep(100);
2086
2087 continue;
2088 }
2089
2090 if (qla2x00_allocate_sp_pool(ha)) {
2091 qla_printk(KERN_WARNING, ha,
2092 "Memory Allocation failed - "
2093 "qla2x00_allocate_sp_pool()\n");
2094
2095 qla2x00_mem_free(ha);
2096 msleep(100);
2097
2098 continue;
2099 }
2100
2101 /* Allocate memory for SNS commands */
2102 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2103 /* Get consistent memory allocated for SNS commands */
2104 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2105 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2106 GFP_KERNEL);
2107 if (ha->sns_cmd == NULL) {
2108 /* error */
2109 qla_printk(KERN_WARNING, ha,
2110 "Memory Allocation failed - sns_cmd\n");
2111
2112 qla2x00_mem_free(ha);
2113 msleep(100);
2114
2115 continue;
2116 }
2117 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2118 } else {
2119 /* Get consistent memory allocated for MS IOCB */
2120 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2121 &ha->ms_iocb_dma);
2122 if (ha->ms_iocb == NULL) {
2123 /* error */
2124 qla_printk(KERN_WARNING, ha,
2125 "Memory Allocation failed - ms_iocb\n");
2126
2127 qla2x00_mem_free(ha);
2128 msleep(100);
2129
2130 continue;
2131 }
2132 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2133
2134 /*
2135 * Get consistent memory allocated for CT SNS
2136 * commands
2137 */
2138 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2139 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2140 GFP_KERNEL);
2141 if (ha->ct_sns == NULL) {
2142 /* error */
2143 qla_printk(KERN_WARNING, ha,
2144 "Memory Allocation failed - ct_sns\n");
2145
2146 qla2x00_mem_free(ha);
2147 msleep(100);
2148
2149 continue;
2150 }
2151 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2152
2153 if (IS_FWI2_CAPABLE(ha)) {
2154 /*
2155 * Get consistent memory allocated for SFP
2156 * block.
2157 */
2158 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2159 GFP_KERNEL, &ha->sfp_data_dma);
2160 if (ha->sfp_data == NULL) {
2161 qla_printk(KERN_WARNING, ha,
2162 "Memory Allocation failed - "
2163 "sfp_data\n");
2164
2165 qla2x00_mem_free(ha);
2166 msleep(100);
2167
2168 continue;
2169 }
2170 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2171 }
2172 }
2173
2174 /* Get memory for cached NVRAM */
2175 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2176 if (ha->nvram == NULL) {
2177 /* error */
2178 qla_printk(KERN_WARNING, ha,
2179 "Memory Allocation failed - nvram cache\n");
2180
2181 qla2x00_mem_free(ha);
2182 msleep(100);
2183
2184 continue;
2185 }
2186
2187 /* Done all allocations without any error. */
2188 status = 0;
2189
2190 } while (retry-- && status != 0);
2191
2192 if (status) {
2193 printk(KERN_WARNING
2194 "%s(): **** FAILED ****\n", __func__);
2195 }
2196
2197 return(status);
2198 }
2199
2200 /*
2201 * qla2x00_mem_free
2202 * Frees all adapter allocated memory.
2203 *
2204 * Input:
2205 * ha = adapter block pointer.
2206 */
2207 static void
2208 qla2x00_mem_free(scsi_qla_host_t *ha)
2209 {
2210 struct list_head *fcpl, *fcptemp;
2211 fc_port_t *fcport;
2212
2213 if (ha == NULL) {
2214 /* error */
2215 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2216 return;
2217 }
2218
2219 /* free sp pool */
2220 qla2x00_free_sp_pool(ha);
2221
2222 if (ha->fce)
2223 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2224 ha->fce_dma);
2225
2226 if (ha->fw_dump) {
2227 if (ha->eft)
2228 dma_free_coherent(&ha->pdev->dev,
2229 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2230 vfree(ha->fw_dump);
2231 }
2232
2233 if (ha->sns_cmd)
2234 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2235 ha->sns_cmd, ha->sns_cmd_dma);
2236
2237 if (ha->ct_sns)
2238 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2239 ha->ct_sns, ha->ct_sns_dma);
2240
2241 if (ha->sfp_data)
2242 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2243
2244 if (ha->ms_iocb)
2245 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2246
2247 if (ha->s_dma_pool)
2248 dma_pool_destroy(ha->s_dma_pool);
2249
2250 if (ha->init_cb)
2251 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2252 ha->init_cb, ha->init_cb_dma);
2253
2254 if (ha->gid_list)
2255 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2256 ha->gid_list_dma);
2257
2258 if (ha->response_ring)
2259 dma_free_coherent(&ha->pdev->dev,
2260 (ha->response_q_length + 1) * sizeof(response_t),
2261 ha->response_ring, ha->response_dma);
2262
2263 if (ha->request_ring)
2264 dma_free_coherent(&ha->pdev->dev,
2265 (ha->request_q_length + 1) * sizeof(request_t),
2266 ha->request_ring, ha->request_dma);
2267
2268 ha->eft = NULL;
2269 ha->eft_dma = 0;
2270 ha->sns_cmd = NULL;
2271 ha->sns_cmd_dma = 0;
2272 ha->ct_sns = NULL;
2273 ha->ct_sns_dma = 0;
2274 ha->ms_iocb = NULL;
2275 ha->ms_iocb_dma = 0;
2276 ha->init_cb = NULL;
2277 ha->init_cb_dma = 0;
2278
2279 ha->s_dma_pool = NULL;
2280
2281 ha->gid_list = NULL;
2282 ha->gid_list_dma = 0;
2283
2284 ha->response_ring = NULL;
2285 ha->response_dma = 0;
2286 ha->request_ring = NULL;
2287 ha->request_dma = 0;
2288
2289 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2290 fcport = list_entry(fcpl, fc_port_t, list);
2291
2292 /* fc ports */
2293 list_del_init(&fcport->list);
2294 kfree(fcport);
2295 }
2296 INIT_LIST_HEAD(&ha->fcports);
2297
2298 ha->fw_dump = NULL;
2299 ha->fw_dumped = 0;
2300 ha->fw_dump_reading = 0;
2301
2302 vfree(ha->optrom_buffer);
2303 kfree(ha->nvram);
2304 }
2305
2306 /*
2307 * qla2x00_allocate_sp_pool
2308 * This routine is called during initialization to allocate
2309 * memory for local srb_t.
2310 *
2311 * Input:
2312 * ha = adapter block pointer.
2313 *
2314 * Context:
2315 * Kernel context.
2316 */
2317 static int
2318 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2319 {
2320 int rval;
2321
2322 rval = QLA_SUCCESS;
2323 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2324 if (ha->srb_mempool == NULL) {
2325 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2326 rval = QLA_FUNCTION_FAILED;
2327 }
2328 return (rval);
2329 }
2330
2331 /*
2332 * This routine frees all adapter allocated memory.
2333 *
2334 */
2335 static void
2336 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2337 {
2338 if (ha->srb_mempool) {
2339 mempool_destroy(ha->srb_mempool);
2340 ha->srb_mempool = NULL;
2341 }
2342 }
2343
2344 /**************************************************************************
2345 * qla2x00_do_dpc
2346 * This kernel thread is a task that is schedule by the interrupt handler
2347 * to perform the background processing for interrupts.
2348 *
2349 * Notes:
2350 * This task always run in the context of a kernel thread. It
2351 * is kick-off by the driver's detect code and starts up
2352 * up one per adapter. It immediately goes to sleep and waits for
2353 * some fibre event. When either the interrupt handler or
2354 * the timer routine detects a event it will one of the task
2355 * bits then wake us up.
2356 **************************************************************************/
2357 static int
2358 qla2x00_do_dpc(void *data)
2359 {
2360 int rval;
2361 scsi_qla_host_t *ha;
2362 fc_port_t *fcport;
2363 uint8_t status;
2364 uint16_t next_loopid;
2365
2366 ha = (scsi_qla_host_t *)data;
2367
2368 set_user_nice(current, -20);
2369
2370 while (!kthread_should_stop()) {
2371 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2372
2373 set_current_state(TASK_INTERRUPTIBLE);
2374 schedule();
2375 __set_current_state(TASK_RUNNING);
2376
2377 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2378
2379 /* Initialization not yet finished. Don't do anything yet. */
2380 if (!ha->flags.init_done)
2381 continue;
2382
2383 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2384
2385 ha->dpc_active = 1;
2386
2387 if (ha->flags.mbox_busy) {
2388 ha->dpc_active = 0;
2389 continue;
2390 }
2391
2392 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2393
2394 DEBUG(printk("scsi(%ld): dpc: sched "
2395 "qla2x00_abort_isp ha = %p\n",
2396 ha->host_no, ha));
2397 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2398 &ha->dpc_flags))) {
2399
2400 if (qla2x00_abort_isp(ha)) {
2401 /* failed. retry later */
2402 set_bit(ISP_ABORT_NEEDED,
2403 &ha->dpc_flags);
2404 }
2405 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2406 }
2407 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2408 ha->host_no));
2409 }
2410
2411 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2412 qla2x00_update_fcports(ha);
2413
2414 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2415 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2416 ha->host_no));
2417 qla2x00_loop_reset(ha);
2418 }
2419
2420 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2421 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2422
2423 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2424 ha->host_no));
2425
2426 qla2x00_rst_aen(ha);
2427 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2428 }
2429
2430 /* Retry each device up to login retry count */
2431 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2432 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2433 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2434
2435 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2436 ha->host_no));
2437
2438 next_loopid = 0;
2439 list_for_each_entry(fcport, &ha->fcports, list) {
2440 /*
2441 * If the port is not ONLINE then try to login
2442 * to it if we haven't run out of retries.
2443 */
2444 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2445 fcport->login_retry) {
2446
2447 if (fcport->flags & FCF_FABRIC_DEVICE) {
2448 if (fcport->flags &
2449 FCF_TAPE_PRESENT)
2450 ha->isp_ops->fabric_logout(
2451 ha, fcport->loop_id,
2452 fcport->d_id.b.domain,
2453 fcport->d_id.b.area,
2454 fcport->d_id.b.al_pa);
2455 status = qla2x00_fabric_login(
2456 ha, fcport, &next_loopid);
2457 } else
2458 status =
2459 qla2x00_local_device_login(
2460 ha, fcport);
2461
2462 fcport->login_retry--;
2463 if (status == QLA_SUCCESS) {
2464 fcport->old_loop_id = fcport->loop_id;
2465
2466 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2467 ha->host_no, fcport->loop_id));
2468
2469 qla2x00_update_fcport(ha,
2470 fcport);
2471 } else if (status == 1) {
2472 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2473 /* retry the login again */
2474 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2475 ha->host_no,
2476 fcport->login_retry, fcport->loop_id));
2477 } else {
2478 fcport->login_retry = 0;
2479 }
2480 if (fcport->login_retry == 0)
2481 fcport->loop_id = FC_NO_LOOP_ID;
2482 }
2483 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2484 break;
2485 }
2486 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2487 ha->host_no));
2488 }
2489
2490 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2491 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2492
2493 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2494 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2495 ha->host_no));
2496
2497 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2498
2499 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2500 ha->host_no));
2501 }
2502
2503 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2504
2505 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2506 ha->host_no));
2507
2508 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2509 &ha->dpc_flags))) {
2510
2511 rval = qla2x00_loop_resync(ha);
2512
2513 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2514 }
2515
2516 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2517 ha->host_no));
2518 }
2519
2520 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2521
2522 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2523 ha->host_no));
2524
2525 qla2x00_rescan_fcports(ha);
2526
2527 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2528 "end.\n",
2529 ha->host_no));
2530 }
2531
2532 if (!ha->interrupts_on)
2533 ha->isp_ops->enable_intrs(ha);
2534
2535 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2536 ha->isp_ops->beacon_blink(ha);
2537
2538 qla2x00_do_dpc_all_vps(ha);
2539
2540 ha->dpc_active = 0;
2541 } /* End of while(1) */
2542
2543 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2544
2545 /*
2546 * Make sure that nobody tries to wake us up again.
2547 */
2548 ha->dpc_active = 0;
2549
2550 return 0;
2551 }
2552
2553 void
2554 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2555 {
2556 if (ha->dpc_thread)
2557 wake_up_process(ha->dpc_thread);
2558 }
2559
2560 /*
2561 * qla2x00_rst_aen
2562 * Processes asynchronous reset.
2563 *
2564 * Input:
2565 * ha = adapter block pointer.
2566 */
2567 static void
2568 qla2x00_rst_aen(scsi_qla_host_t *ha)
2569 {
2570 if (ha->flags.online && !ha->flags.reset_active &&
2571 !atomic_read(&ha->loop_down_timer) &&
2572 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2573 do {
2574 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2575
2576 /*
2577 * Issue marker command only when we are going to start
2578 * the I/O.
2579 */
2580 ha->marker_needed = 1;
2581 } while (!atomic_read(&ha->loop_down_timer) &&
2582 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2583 }
2584 }
2585
2586 static void
2587 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2588 {
2589 struct scsi_cmnd *cmd = sp->cmd;
2590
2591 if (sp->flags & SRB_DMA_VALID) {
2592 scsi_dma_unmap(cmd);
2593 sp->flags &= ~SRB_DMA_VALID;
2594 }
2595 CMD_SP(cmd) = NULL;
2596 }
2597
2598 void
2599 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2600 {
2601 struct scsi_cmnd *cmd = sp->cmd;
2602
2603 qla2x00_sp_free_dma(ha, sp);
2604
2605 mempool_free(sp, ha->srb_mempool);
2606
2607 cmd->scsi_done(cmd);
2608 }
2609
2610 /**************************************************************************
2611 * qla2x00_timer
2612 *
2613 * Description:
2614 * One second timer
2615 *
2616 * Context: Interrupt
2617 ***************************************************************************/
2618 void
2619 qla2x00_timer(scsi_qla_host_t *ha)
2620 {
2621 unsigned long cpu_flags = 0;
2622 fc_port_t *fcport;
2623 int start_dpc = 0;
2624 int index;
2625 srb_t *sp;
2626 int t;
2627 scsi_qla_host_t *pha = to_qla_parent(ha);
2628
2629 /*
2630 * Ports - Port down timer.
2631 *
2632 * Whenever, a port is in the LOST state we start decrementing its port
2633 * down timer every second until it reaches zero. Once it reaches zero
2634 * the port it marked DEAD.
2635 */
2636 t = 0;
2637 list_for_each_entry(fcport, &ha->fcports, list) {
2638 if (fcport->port_type != FCT_TARGET)
2639 continue;
2640
2641 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2642
2643 if (atomic_read(&fcport->port_down_timer) == 0)
2644 continue;
2645
2646 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2647 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2648
2649 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2650 "%d remaining\n",
2651 ha->host_no,
2652 t, atomic_read(&fcport->port_down_timer)));
2653 }
2654 t++;
2655 } /* End of for fcport */
2656
2657
2658 /* Loop down handler. */
2659 if (atomic_read(&ha->loop_down_timer) > 0 &&
2660 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2661
2662 if (atomic_read(&ha->loop_down_timer) ==
2663 ha->loop_down_abort_time) {
2664
2665 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2666 "queues before time expire\n",
2667 ha->host_no));
2668
2669 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2670 atomic_set(&ha->loop_state, LOOP_DEAD);
2671
2672 /* Schedule an ISP abort to return any tape commands. */
2673 /* NPIV - scan physical port only */
2674 if (!ha->parent) {
2675 spin_lock_irqsave(&ha->hardware_lock,
2676 cpu_flags);
2677 for (index = 1;
2678 index < MAX_OUTSTANDING_COMMANDS;
2679 index++) {
2680 fc_port_t *sfcp;
2681
2682 sp = ha->outstanding_cmds[index];
2683 if (!sp)
2684 continue;
2685 sfcp = sp->fcport;
2686 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2687 continue;
2688
2689 set_bit(ISP_ABORT_NEEDED,
2690 &ha->dpc_flags);
2691 break;
2692 }
2693 spin_unlock_irqrestore(&ha->hardware_lock,
2694 cpu_flags);
2695 }
2696 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2697 start_dpc++;
2698 }
2699
2700 /* if the loop has been down for 4 minutes, reinit adapter */
2701 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2702 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2703 "restarting queues.\n",
2704 ha->host_no));
2705
2706 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2707 start_dpc++;
2708
2709 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2710 DEBUG(printk("scsi(%ld): Loop down - "
2711 "aborting ISP.\n",
2712 ha->host_no));
2713 qla_printk(KERN_WARNING, ha,
2714 "Loop down - aborting ISP.\n");
2715
2716 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2717 }
2718 }
2719 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2720 ha->host_no,
2721 atomic_read(&ha->loop_down_timer)));
2722 }
2723
2724 /* Check if beacon LED needs to be blinked */
2725 if (ha->beacon_blink_led == 1) {
2726 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2727 start_dpc++;
2728 }
2729
2730 /* Schedule the DPC routine if needed */
2731 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2732 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2733 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2734 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2735 start_dpc ||
2736 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2737 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2738 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2739 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2740 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2741 qla2xxx_wake_dpc(pha);
2742
2743 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2744 }
2745
2746 /* Firmware interface routines. */
2747
2748 #define FW_BLOBS 6
2749 #define FW_ISP21XX 0
2750 #define FW_ISP22XX 1
2751 #define FW_ISP2300 2
2752 #define FW_ISP2322 3
2753 #define FW_ISP24XX 4
2754 #define FW_ISP25XX 5
2755
2756 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2757 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2758 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2759 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2760 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2761 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2762
2763 static DECLARE_MUTEX(qla_fw_lock);
2764
2765 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2766 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2767 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2768 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2769 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2770 { .name = FW_FILE_ISP24XX, },
2771 { .name = FW_FILE_ISP25XX, },
2772 };
2773
2774 struct fw_blob *
2775 qla2x00_request_firmware(scsi_qla_host_t *ha)
2776 {
2777 struct fw_blob *blob;
2778
2779 blob = NULL;
2780 if (IS_QLA2100(ha)) {
2781 blob = &qla_fw_blobs[FW_ISP21XX];
2782 } else if (IS_QLA2200(ha)) {
2783 blob = &qla_fw_blobs[FW_ISP22XX];
2784 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2785 blob = &qla_fw_blobs[FW_ISP2300];
2786 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2787 blob = &qla_fw_blobs[FW_ISP2322];
2788 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2789 blob = &qla_fw_blobs[FW_ISP24XX];
2790 } else if (IS_QLA25XX(ha)) {
2791 blob = &qla_fw_blobs[FW_ISP25XX];
2792 }
2793
2794 down(&qla_fw_lock);
2795 if (blob->fw)
2796 goto out;
2797
2798 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2799 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2800 "(%s).\n", ha->host_no, blob->name));
2801 blob->fw = NULL;
2802 blob = NULL;
2803 goto out;
2804 }
2805
2806 out:
2807 up(&qla_fw_lock);
2808 return blob;
2809 }
2810
2811 static void
2812 qla2x00_release_firmware(void)
2813 {
2814 int idx;
2815
2816 down(&qla_fw_lock);
2817 for (idx = 0; idx < FW_BLOBS; idx++)
2818 if (qla_fw_blobs[idx].fw)
2819 release_firmware(qla_fw_blobs[idx].fw);
2820 up(&qla_fw_lock);
2821 }
2822
2823 static pci_ers_result_t
2824 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2825 {
2826 switch (state) {
2827 case pci_channel_io_normal:
2828 return PCI_ERS_RESULT_CAN_RECOVER;
2829 case pci_channel_io_frozen:
2830 pci_disable_device(pdev);
2831 return PCI_ERS_RESULT_NEED_RESET;
2832 case pci_channel_io_perm_failure:
2833 qla2x00_remove_one(pdev);
2834 return PCI_ERS_RESULT_DISCONNECT;
2835 }
2836 return PCI_ERS_RESULT_NEED_RESET;
2837 }
2838
2839 static pci_ers_result_t
2840 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2841 {
2842 int risc_paused = 0;
2843 uint32_t stat;
2844 unsigned long flags;
2845 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2846 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2847 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2848
2849 spin_lock_irqsave(&ha->hardware_lock, flags);
2850 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2851 stat = RD_REG_DWORD(&reg->hccr);
2852 if (stat & HCCR_RISC_PAUSE)
2853 risc_paused = 1;
2854 } else if (IS_QLA23XX(ha)) {
2855 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2856 if (stat & HSR_RISC_PAUSED)
2857 risc_paused = 1;
2858 } else if (IS_FWI2_CAPABLE(ha)) {
2859 stat = RD_REG_DWORD(&reg24->host_status);
2860 if (stat & HSRX_RISC_PAUSED)
2861 risc_paused = 1;
2862 }
2863 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2864
2865 if (risc_paused) {
2866 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2867 "Dumping firmware!\n");
2868 ha->isp_ops->fw_dump(ha, 0);
2869
2870 return PCI_ERS_RESULT_NEED_RESET;
2871 } else
2872 return PCI_ERS_RESULT_RECOVERED;
2873 }
2874
2875 static pci_ers_result_t
2876 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2877 {
2878 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2879 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2880
2881 if (pci_enable_device_bars(pdev, ha->bars)) {
2882 qla_printk(KERN_WARNING, ha,
2883 "Can't re-enable PCI device after reset.\n");
2884
2885 return ret;
2886 }
2887 pci_set_master(pdev);
2888
2889 if (ha->isp_ops->pci_config(ha))
2890 return ret;
2891
2892 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2893 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2894 ret = PCI_ERS_RESULT_RECOVERED;
2895 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2896
2897 return ret;
2898 }
2899
2900 static void
2901 qla2xxx_pci_resume(struct pci_dev *pdev)
2902 {
2903 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2904 int ret;
2905
2906 ret = qla2x00_wait_for_hba_online(ha);
2907 if (ret != QLA_SUCCESS) {
2908 qla_printk(KERN_ERR, ha,
2909 "the device failed to resume I/O "
2910 "from slot/link_reset");
2911 }
2912 pci_cleanup_aer_uncorrect_error_status(pdev);
2913 }
2914
2915 static struct pci_error_handlers qla2xxx_err_handler = {
2916 .error_detected = qla2xxx_pci_error_detected,
2917 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2918 .slot_reset = qla2xxx_pci_slot_reset,
2919 .resume = qla2xxx_pci_resume,
2920 };
2921
2922 static struct pci_device_id qla2xxx_pci_tbl[] = {
2923 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2924 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2925 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2926 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2927 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2928 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2929 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2930 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2931 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2932 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2933 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2934 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2935 { 0 },
2936 };
2937 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2938
2939 static struct pci_driver qla2xxx_pci_driver = {
2940 .name = QLA2XXX_DRIVER_NAME,
2941 .driver = {
2942 .owner = THIS_MODULE,
2943 },
2944 .id_table = qla2xxx_pci_tbl,
2945 .probe = qla2x00_probe_one,
2946 .remove = qla2x00_remove_one,
2947 .err_handler = &qla2xxx_err_handler,
2948 };
2949
2950 /**
2951 * qla2x00_module_init - Module initialization.
2952 **/
2953 static int __init
2954 qla2x00_module_init(void)
2955 {
2956 int ret = 0;
2957
2958 /* Allocate cache for SRBs. */
2959 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2960 SLAB_HWCACHE_ALIGN, NULL);
2961 if (srb_cachep == NULL) {
2962 printk(KERN_ERR
2963 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2964 return -ENOMEM;
2965 }
2966
2967 /* Derive version string. */
2968 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2969 if (ql2xextended_error_logging)
2970 strcat(qla2x00_version_str, "-debug");
2971
2972 qla2xxx_transport_template =
2973 fc_attach_transport(&qla2xxx_transport_functions);
2974 if (!qla2xxx_transport_template) {
2975 kmem_cache_destroy(srb_cachep);
2976 return -ENODEV;
2977 }
2978 qla2xxx_transport_vport_template =
2979 fc_attach_transport(&qla2xxx_transport_vport_functions);
2980 if (!qla2xxx_transport_vport_template) {
2981 kmem_cache_destroy(srb_cachep);
2982 fc_release_transport(qla2xxx_transport_template);
2983 return -ENODEV;
2984 }
2985
2986 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2987 ret = pci_register_driver(&qla2xxx_pci_driver);
2988 if (ret) {
2989 kmem_cache_destroy(srb_cachep);
2990 fc_release_transport(qla2xxx_transport_template);
2991 fc_release_transport(qla2xxx_transport_vport_template);
2992 }
2993 return ret;
2994 }
2995
2996 /**
2997 * qla2x00_module_exit - Module cleanup.
2998 **/
2999 static void __exit
3000 qla2x00_module_exit(void)
3001 {
3002 pci_unregister_driver(&qla2xxx_pci_driver);
3003 qla2x00_release_firmware();
3004 kmem_cache_destroy(srb_cachep);
3005 fc_release_transport(qla2xxx_transport_template);
3006 fc_release_transport(qla2xxx_transport_vport_template);
3007 }
3008
3009 module_init(qla2x00_module_init);
3010 module_exit(qla2x00_module_exit);
3011
3012 MODULE_AUTHOR("QLogic Corporation");
3013 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
3014 MODULE_LICENSE("GPL");
3015 MODULE_VERSION(QLA2XXX_VERSION);
3016 MODULE_FIRMWARE(FW_FILE_ISP21XX);
3017 MODULE_FIRMWARE(FW_FILE_ISP22XX);
3018 MODULE_FIRMWARE(FW_FILE_ISP2300);
3019 MODULE_FIRMWARE(FW_FILE_ISP2322);
3020 MODULE_FIRMWARE(FW_FILE_ISP24XX);