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qla2xxx: Add dev_loss_tmo_callbk/terminate_rport_io callback support.
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
blobc5ad858e17e65ddccaf5589a533724ea1259fabc
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2008 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13 #include <linux/mutex.h>
14
15 #include <scsi/scsi_tcq.h>
16 #include <scsi/scsicam.h>
17 #include <scsi/scsi_transport.h>
18 #include <scsi/scsi_transport_fc.h>
19
20 /*
21 * Driver version
22 */
23 char qla2x00_version_str[40];
24
25 /*
26 * SRB allocation cache
27 */
28 static struct kmem_cache *srb_cachep;
29
30 int num_hosts;
31 int ql2xlogintimeout = 20;
32 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
33 MODULE_PARM_DESC(ql2xlogintimeout,
34 "Login timeout value in seconds.");
35
36 int qlport_down_retry;
37 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
38 MODULE_PARM_DESC(qlport_down_retry,
39 "Maximum number of command retries to a port that returns "
40 "a PORT-DOWN status.");
41
42 int ql2xplogiabsentdevice;
43 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
44 MODULE_PARM_DESC(ql2xplogiabsentdevice,
45 "Option to enable PLOGI to devices that are not present after "
46 "a Fabric scan. This is needed for several broken switches. "
47 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
48
49 int ql2xloginretrycount = 0;
50 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
51 MODULE_PARM_DESC(ql2xloginretrycount,
52 "Specify an alternate value for the NVRAM login retry count.");
53
54 int ql2xallocfwdump = 1;
55 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
56 MODULE_PARM_DESC(ql2xallocfwdump,
57 "Option to enable allocation of memory for a firmware dump "
58 "during HBA initialization. Memory allocation requirements "
59 "vary by ISP type. Default is 1 - allocate memory.");
60
61 int ql2xextended_error_logging;
62 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
63 MODULE_PARM_DESC(ql2xextended_error_logging,
64 "Option to enable extended error logging, "
65 "Default is 0 - no logging. 1 - log errors.");
66
67 static void qla2x00_free_device(scsi_qla_host_t *);
68
69 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
70
71 int ql2xfdmienable=1;
72 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
73 MODULE_PARM_DESC(ql2xfdmienable,
74 "Enables FDMI registratons "
75 "Default is 0 - no FDMI. 1 - perfom FDMI.");
76
77 #define MAX_Q_DEPTH 32
78 static int ql2xmaxqdepth = MAX_Q_DEPTH;
79 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
80 MODULE_PARM_DESC(ql2xmaxqdepth,
81 "Maximum queue depth to report for target devices.");
82
83 int ql2xqfullrampup = 120;
84 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
85 MODULE_PARM_DESC(ql2xqfullrampup,
86 "Number of seconds to wait to begin to ramp-up the queue "
87 "depth for a device after a queue-full condition has been "
88 "detected. Default is 120 seconds.");
89
90 /*
91 * SCSI host template entry points
92 */
93 static int qla2xxx_slave_configure(struct scsi_device * device);
94 static int qla2xxx_slave_alloc(struct scsi_device *);
95 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
96 static void qla2xxx_scan_start(struct Scsi_Host *);
97 static void qla2xxx_slave_destroy(struct scsi_device *);
98 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
99 void (*fn)(struct scsi_cmnd *));
100 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla2xxx_eh_abort(struct scsi_cmnd *);
103 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
104 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
105 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
107
108 static int qla2x00_change_queue_depth(struct scsi_device *, int);
109 static int qla2x00_change_queue_type(struct scsi_device *, int);
110
111 static struct scsi_host_template qla2x00_driver_template = {
112 .module = THIS_MODULE,
113 .name = QLA2XXX_DRIVER_NAME,
114 .queuecommand = qla2x00_queuecommand,
115
116 .eh_abort_handler = qla2xxx_eh_abort,
117 .eh_device_reset_handler = qla2xxx_eh_device_reset,
118 .eh_target_reset_handler = qla2xxx_eh_target_reset,
119 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
120 .eh_host_reset_handler = qla2xxx_eh_host_reset,
121
122 .slave_configure = qla2xxx_slave_configure,
123
124 .slave_alloc = qla2xxx_slave_alloc,
125 .slave_destroy = qla2xxx_slave_destroy,
126 .scan_finished = qla2xxx_scan_finished,
127 .scan_start = qla2xxx_scan_start,
128 .change_queue_depth = qla2x00_change_queue_depth,
129 .change_queue_type = qla2x00_change_queue_type,
130 .this_id = -1,
131 .cmd_per_lun = 3,
132 .use_clustering = ENABLE_CLUSTERING,
133 .sg_tablesize = SG_ALL,
134
135 /*
136 * The RISC allows for each command to transfer (2^32-1) bytes of data,
137 * which equates to 0x800000 sectors.
138 */
139 .max_sectors = 0xFFFF,
140 .shost_attrs = qla2x00_host_attrs,
141 };
142
143 struct scsi_host_template qla24xx_driver_template = {
144 .module = THIS_MODULE,
145 .name = QLA2XXX_DRIVER_NAME,
146 .queuecommand = qla24xx_queuecommand,
147
148 .eh_abort_handler = qla2xxx_eh_abort,
149 .eh_device_reset_handler = qla2xxx_eh_device_reset,
150 .eh_target_reset_handler = qla2xxx_eh_target_reset,
151 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
152 .eh_host_reset_handler = qla2xxx_eh_host_reset,
153
154 .slave_configure = qla2xxx_slave_configure,
155
156 .slave_alloc = qla2xxx_slave_alloc,
157 .slave_destroy = qla2xxx_slave_destroy,
158 .scan_finished = qla2xxx_scan_finished,
159 .scan_start = qla2xxx_scan_start,
160 .change_queue_depth = qla2x00_change_queue_depth,
161 .change_queue_type = qla2x00_change_queue_type,
162 .this_id = -1,
163 .cmd_per_lun = 3,
164 .use_clustering = ENABLE_CLUSTERING,
165 .sg_tablesize = SG_ALL,
166
167 .max_sectors = 0xFFFF,
168 .shost_attrs = qla2x00_host_attrs,
169 };
170
171 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
172 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
173
174 /* TODO Convert to inlines
175 *
176 * Timer routines
177 */
178
179 __inline__ void
180 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
181 {
182 init_timer(&ha->timer);
183 ha->timer.expires = jiffies + interval * HZ;
184 ha->timer.data = (unsigned long)ha;
185 ha->timer.function = (void (*)(unsigned long))func;
186 add_timer(&ha->timer);
187 ha->timer_active = 1;
188 }
189
190 static inline void
191 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
192 {
193 mod_timer(&ha->timer, jiffies + interval * HZ);
194 }
195
196 static __inline__ void
197 qla2x00_stop_timer(scsi_qla_host_t *ha)
198 {
199 del_timer_sync(&ha->timer);
200 ha->timer_active = 0;
201 }
202
203 static int qla2x00_do_dpc(void *data);
204
205 static void qla2x00_rst_aen(scsi_qla_host_t *);
206
207 static int qla2x00_mem_alloc(scsi_qla_host_t *);
208 static void qla2x00_mem_free(scsi_qla_host_t *ha);
209 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
210
211 /* -------------------------------------------------------------------------- */
212
213 static char *
214 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
215 {
216 static char *pci_bus_modes[] = {
217 "33", "66", "100", "133",
218 };
219 uint16_t pci_bus;
220
221 strcpy(str, "PCI");
222 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
223 if (pci_bus) {
224 strcat(str, "-X (");
225 strcat(str, pci_bus_modes[pci_bus]);
226 } else {
227 pci_bus = (ha->pci_attr & BIT_8) >> 8;
228 strcat(str, " (");
229 strcat(str, pci_bus_modes[pci_bus]);
230 }
231 strcat(str, " MHz)");
232
233 return (str);
234 }
235
236 static char *
237 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
238 {
239 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
240 uint32_t pci_bus;
241 int pcie_reg;
242
243 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
244 if (pcie_reg) {
245 char lwstr[6];
246 uint16_t pcie_lstat, lspeed, lwidth;
247
248 pcie_reg += 0x12;
249 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
250 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
251 lwidth = (pcie_lstat &
252 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
253
254 strcpy(str, "PCIe (");
255 if (lspeed == 1)
256 strcat(str, "2.5GT/s ");
257 else if (lspeed == 2)
258 strcat(str, "5.0GT/s ");
259 else
260 strcat(str, "<unknown> ");
261 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
262 strcat(str, lwstr);
263
264 return str;
265 }
266
267 strcpy(str, "PCI");
268 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
269 if (pci_bus == 0 || pci_bus == 8) {
270 strcat(str, " (");
271 strcat(str, pci_bus_modes[pci_bus >> 3]);
272 } else {
273 strcat(str, "-X ");
274 if (pci_bus & BIT_2)
275 strcat(str, "Mode 2");
276 else
277 strcat(str, "Mode 1");
278 strcat(str, " (");
279 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
280 }
281 strcat(str, " MHz)");
282
283 return str;
284 }
285
286 static char *
287 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
288 {
289 char un_str[10];
290
291 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
292 ha->fw_minor_version,
293 ha->fw_subminor_version);
294
295 if (ha->fw_attributes & BIT_9) {
296 strcat(str, "FLX");
297 return (str);
298 }
299
300 switch (ha->fw_attributes & 0xFF) {
301 case 0x7:
302 strcat(str, "EF");
303 break;
304 case 0x17:
305 strcat(str, "TP");
306 break;
307 case 0x37:
308 strcat(str, "IP");
309 break;
310 case 0x77:
311 strcat(str, "VI");
312 break;
313 default:
314 sprintf(un_str, "(%x)", ha->fw_attributes);
315 strcat(str, un_str);
316 break;
317 }
318 if (ha->fw_attributes & 0x100)
319 strcat(str, "X");
320
321 return (str);
322 }
323
324 static char *
325 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
326 {
327 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
328 ha->fw_minor_version,
329 ha->fw_subminor_version);
330
331 if (ha->fw_attributes & BIT_0)
332 strcat(str, "[Class 2] ");
333 if (ha->fw_attributes & BIT_1)
334 strcat(str, "[IP] ");
335 if (ha->fw_attributes & BIT_2)
336 strcat(str, "[Multi-ID] ");
337 if (ha->fw_attributes & BIT_3)
338 strcat(str, "[SB-2] ");
339 if (ha->fw_attributes & BIT_4)
340 strcat(str, "[T10 CRC] ");
341 if (ha->fw_attributes & BIT_5)
342 strcat(str, "[VI] ");
343 if (ha->fw_attributes & BIT_10)
344 strcat(str, "[84XX] ");
345 if (ha->fw_attributes & BIT_13)
346 strcat(str, "[Experimental]");
347 return str;
348 }
349
350 static inline srb_t *
351 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
352 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
353 {
354 srb_t *sp;
355
356 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
357 if (!sp)
358 return sp;
359
360 sp->ha = ha;
361 sp->fcport = fcport;
362 sp->cmd = cmd;
363 sp->flags = 0;
364 CMD_SP(cmd) = (void *)sp;
365 cmd->scsi_done = done;
366
367 return sp;
368 }
369
370 static int
371 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
372 {
373 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
374 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
375 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
376 srb_t *sp;
377 int rval;
378
379 if (unlikely(pci_channel_offline(ha->pdev))) {
380 cmd->result = DID_REQUEUE << 16;
381 goto qc_fail_command;
382 }
383
384 rval = fc_remote_port_chkready(rport);
385 if (rval) {
386 cmd->result = rval;
387 goto qc_fail_command;
388 }
389
390 /* Close window on fcport/rport state-transitioning. */
391 if (fcport->drport) {
392 cmd->result = DID_IMM_RETRY << 16;
393 goto qc_fail_command;
394 }
395
396 if (atomic_read(&fcport->state) != FCS_ONLINE) {
397 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
398 atomic_read(&ha->loop_state) == LOOP_DEAD) {
399 cmd->result = DID_NO_CONNECT << 16;
400 goto qc_fail_command;
401 }
402 goto qc_host_busy;
403 }
404
405 spin_unlock_irq(ha->host->host_lock);
406
407 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
408 if (!sp)
409 goto qc_host_busy_lock;
410
411 rval = qla2x00_start_scsi(sp);
412 if (rval != QLA_SUCCESS)
413 goto qc_host_busy_free_sp;
414
415 spin_lock_irq(ha->host->host_lock);
416
417 return 0;
418
419 qc_host_busy_free_sp:
420 qla2x00_sp_free_dma(ha, sp);
421 mempool_free(sp, ha->srb_mempool);
422
423 qc_host_busy_lock:
424 spin_lock_irq(ha->host->host_lock);
425
426 qc_host_busy:
427 return SCSI_MLQUEUE_HOST_BUSY;
428
429 qc_fail_command:
430 done(cmd);
431
432 return 0;
433 }
434
435
436 static int
437 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
438 {
439 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
440 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
441 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
442 srb_t *sp;
443 int rval;
444 scsi_qla_host_t *pha = to_qla_parent(ha);
445
446 if (unlikely(pci_channel_offline(ha->pdev))) {
447 cmd->result = DID_REQUEUE << 16;
448 goto qc24_fail_command;
449 }
450
451 rval = fc_remote_port_chkready(rport);
452 if (rval) {
453 cmd->result = rval;
454 goto qc24_fail_command;
455 }
456
457 /* Close window on fcport/rport state-transitioning. */
458 if (fcport->drport) {
459 cmd->result = DID_IMM_RETRY << 16;
460 goto qc24_fail_command;
461 }
462
463 if (atomic_read(&fcport->state) != FCS_ONLINE) {
464 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
465 atomic_read(&pha->loop_state) == LOOP_DEAD) {
466 cmd->result = DID_NO_CONNECT << 16;
467 goto qc24_fail_command;
468 }
469 goto qc24_host_busy;
470 }
471
472 spin_unlock_irq(ha->host->host_lock);
473
474 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
475 if (!sp)
476 goto qc24_host_busy_lock;
477
478 rval = qla24xx_start_scsi(sp);
479 if (rval != QLA_SUCCESS)
480 goto qc24_host_busy_free_sp;
481
482 spin_lock_irq(ha->host->host_lock);
483
484 return 0;
485
486 qc24_host_busy_free_sp:
487 qla2x00_sp_free_dma(pha, sp);
488 mempool_free(sp, pha->srb_mempool);
489
490 qc24_host_busy_lock:
491 spin_lock_irq(ha->host->host_lock);
492
493 qc24_host_busy:
494 return SCSI_MLQUEUE_HOST_BUSY;
495
496 qc24_fail_command:
497 done(cmd);
498
499 return 0;
500 }
501
502
503 /*
504 * qla2x00_eh_wait_on_command
505 * Waits for the command to be returned by the Firmware for some
506 * max time.
507 *
508 * Input:
509 * ha = actual ha whose done queue will contain the command
510 * returned by firmware.
511 * cmd = Scsi Command to wait on.
512 * flag = Abort/Reset(Bus or Device Reset)
513 *
514 * Return:
515 * Not Found : 0
516 * Found : 1
517 */
518 static int
519 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
520 {
521 #define ABORT_POLLING_PERIOD 1000
522 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
523 unsigned long wait_iter = ABORT_WAIT_ITER;
524 int ret = QLA_SUCCESS;
525
526 while (CMD_SP(cmd)) {
527 msleep(ABORT_POLLING_PERIOD);
528
529 if (--wait_iter)
530 break;
531 }
532 if (CMD_SP(cmd))
533 ret = QLA_FUNCTION_FAILED;
534
535 return ret;
536 }
537
538 /*
539 * qla2x00_wait_for_hba_online
540 * Wait till the HBA is online after going through
541 * <= MAX_RETRIES_OF_ISP_ABORT or
542 * finally HBA is disabled ie marked offline
543 *
544 * Input:
545 * ha - pointer to host adapter structure
546 *
547 * Note:
548 * Does context switching-Release SPIN_LOCK
549 * (if any) before calling this routine.
550 *
551 * Return:
552 * Success (Adapter is online) : 0
553 * Failed (Adapter is offline/disabled) : 1
554 */
555 int
556 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
557 {
558 int return_status;
559 unsigned long wait_online;
560 scsi_qla_host_t *pha = to_qla_parent(ha);
561
562 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
563 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
564 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
565 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
566 pha->dpc_active) && time_before(jiffies, wait_online)) {
567
568 msleep(1000);
569 }
570 if (pha->flags.online)
571 return_status = QLA_SUCCESS;
572 else
573 return_status = QLA_FUNCTION_FAILED;
574
575 return (return_status);
576 }
577
578 /*
579 * qla2x00_wait_for_loop_ready
580 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
581 * to be in LOOP_READY state.
582 * Input:
583 * ha - pointer to host adapter structure
584 *
585 * Note:
586 * Does context switching-Release SPIN_LOCK
587 * (if any) before calling this routine.
588 *
589 *
590 * Return:
591 * Success (LOOP_READY) : 0
592 * Failed (LOOP_NOT_READY) : 1
593 */
594 static inline int
595 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
596 {
597 int return_status = QLA_SUCCESS;
598 unsigned long loop_timeout ;
599 scsi_qla_host_t *pha = to_qla_parent(ha);
600
601 /* wait for 5 min at the max for loop to be ready */
602 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
603
604 while ((!atomic_read(&pha->loop_down_timer) &&
605 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
606 atomic_read(&pha->loop_state) != LOOP_READY) {
607 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
608 return_status = QLA_FUNCTION_FAILED;
609 break;
610 }
611 msleep(1000);
612 if (time_after_eq(jiffies, loop_timeout)) {
613 return_status = QLA_FUNCTION_FAILED;
614 break;
615 }
616 }
617 return (return_status);
618 }
619
620 void
621 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
622 {
623 int cnt;
624 unsigned long flags;
625 srb_t *sp;
626 scsi_qla_host_t *ha = fcport->ha;
627 scsi_qla_host_t *pha = to_qla_parent(ha);
628
629 spin_lock_irqsave(&pha->hardware_lock, flags);
630 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
631 sp = pha->outstanding_cmds[cnt];
632 if (!sp)
633 continue;
634 if (sp->fcport != fcport)
635 continue;
636
637 spin_unlock_irqrestore(&pha->hardware_lock, flags);
638 if (ha->isp_ops->abort_command(ha, sp)) {
639 DEBUG2(qla_printk(KERN_WARNING, ha,
640 "Abort failed -- %lx\n", sp->cmd->serial_number));
641 } else {
642 if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
643 QLA_SUCCESS)
644 DEBUG2(qla_printk(KERN_WARNING, ha,
645 "Abort failed while waiting -- %lx\n",
646 sp->cmd->serial_number));
647
648 }
649 spin_lock_irqsave(&pha->hardware_lock, flags);
650 }
651 spin_unlock_irqrestore(&pha->hardware_lock, flags);
652 }
653
654 static void
655 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
656 {
657 struct Scsi_Host *shost = cmnd->device->host;
658 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
659 unsigned long flags;
660
661 spin_lock_irqsave(shost->host_lock, flags);
662 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
663 spin_unlock_irqrestore(shost->host_lock, flags);
664 msleep(1000);
665 spin_lock_irqsave(shost->host_lock, flags);
666 }
667 spin_unlock_irqrestore(shost->host_lock, flags);
668 return;
669 }
670
671 /**************************************************************************
672 * qla2xxx_eh_abort
673 *
674 * Description:
675 * The abort function will abort the specified command.
676 *
677 * Input:
678 * cmd = Linux SCSI command packet to be aborted.
679 *
680 * Returns:
681 * Either SUCCESS or FAILED.
682 *
683 * Note:
684 * Only return FAILED if command not returned by firmware.
685 **************************************************************************/
686 static int
687 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
688 {
689 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
690 srb_t *sp;
691 int ret, i;
692 unsigned int id, lun;
693 unsigned long serial;
694 unsigned long flags;
695 int wait = 0;
696 scsi_qla_host_t *pha = to_qla_parent(ha);
697
698 qla2x00_block_error_handler(cmd);
699
700 if (!CMD_SP(cmd))
701 return SUCCESS;
702
703 ret = SUCCESS;
704
705 id = cmd->device->id;
706 lun = cmd->device->lun;
707 serial = cmd->serial_number;
708
709 /* Check active list for command command. */
710 spin_lock_irqsave(&pha->hardware_lock, flags);
711 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
712 sp = pha->outstanding_cmds[i];
713
714 if (sp == NULL)
715 continue;
716
717 if (sp->cmd != cmd)
718 continue;
719
720 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
721 __func__, ha->host_no, sp, serial));
722
723 spin_unlock_irqrestore(&pha->hardware_lock, flags);
724 if (ha->isp_ops->abort_command(ha, sp)) {
725 DEBUG2(printk("%s(%ld): abort_command "
726 "mbx failed.\n", __func__, ha->host_no));
727 } else {
728 DEBUG3(printk("%s(%ld): abort_command "
729 "mbx success.\n", __func__, ha->host_no));
730 wait = 1;
731 }
732 spin_lock_irqsave(&pha->hardware_lock, flags);
733
734 break;
735 }
736 spin_unlock_irqrestore(&pha->hardware_lock, flags);
737
738 /* Wait for the command to be returned. */
739 if (wait) {
740 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
741 qla_printk(KERN_ERR, ha,
742 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
743 "%x.\n", ha->host_no, id, lun, serial, ret);
744 ret = FAILED;
745 }
746 }
747
748 qla_printk(KERN_INFO, ha,
749 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
750 ha->host_no, id, lun, wait, serial, ret);
751
752 return ret;
753 }
754
755 enum nexus_wait_type {
756 WAIT_HOST = 0,
757 WAIT_TARGET,
758 WAIT_LUN,
759 };
760
761 static int
762 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
763 unsigned int l, enum nexus_wait_type type)
764 {
765 int cnt, match, status;
766 srb_t *sp;
767 unsigned long flags;
768 scsi_qla_host_t *pha = to_qla_parent(ha);
769
770 status = QLA_SUCCESS;
771 spin_lock_irqsave(&pha->hardware_lock, flags);
772 for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
773 cnt++) {
774 sp = pha->outstanding_cmds[cnt];
775 if (!sp)
776 continue;
777 if (ha->vp_idx != sp->ha->vp_idx)
778 continue;
779 match = 0;
780 switch (type) {
781 case WAIT_HOST:
782 match = 1;
783 break;
784 case WAIT_TARGET:
785 match = sp->cmd->device->id == t;
786 break;
787 case WAIT_LUN:
788 match = (sp->cmd->device->id == t &&
789 sp->cmd->device->lun == l);
790 break;
791 }
792 if (!match)
793 continue;
794
795 spin_unlock_irqrestore(&pha->hardware_lock, flags);
796 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
797 spin_lock_irqsave(&pha->hardware_lock, flags);
798 }
799 spin_unlock_irqrestore(&pha->hardware_lock, flags);
800
801 return status;
802 }
803
804 static char *reset_errors[] = {
805 "HBA not online",
806 "HBA not ready",
807 "Task management failed",
808 "Waiting for command completions",
809 };
810
811 static int
812 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
813 struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
814 {
815 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
816 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
817 int err;
818
819 qla2x00_block_error_handler(cmd);
820
821 if (!fcport)
822 return FAILED;
823
824 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
825 ha->host_no, cmd->device->id, cmd->device->lun, name);
826
827 err = 0;
828 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
829 goto eh_reset_failed;
830 err = 1;
831 if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
832 goto eh_reset_failed;
833 err = 2;
834 if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
835 goto eh_reset_failed;
836 err = 3;
837 if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
838 cmd->device->lun, type) != QLA_SUCCESS)
839 goto eh_reset_failed;
840
841 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
842 ha->host_no, cmd->device->id, cmd->device->lun, name);
843
844 return SUCCESS;
845
846 eh_reset_failed:
847 qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
848 ha->host_no, cmd->device->id, cmd->device->lun, name,
849 reset_errors[err]);
850 return FAILED;
851 }
852
853 static int
854 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
855 {
856 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
857
858 return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
859 ha->isp_ops->lun_reset);
860 }
861
862 static int
863 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
864 {
865 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
866
867 return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
868 ha->isp_ops->target_reset);
869 }
870
871 /**************************************************************************
872 * qla2xxx_eh_bus_reset
873 *
874 * Description:
875 * The bus reset function will reset the bus and abort any executing
876 * commands.
877 *
878 * Input:
879 * cmd = Linux SCSI command packet of the command that cause the
880 * bus reset.
881 *
882 * Returns:
883 * SUCCESS/FAILURE (defined as macro in scsi.h).
884 *
885 **************************************************************************/
886 static int
887 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
888 {
889 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
890 scsi_qla_host_t *pha = to_qla_parent(ha);
891 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
892 int ret = FAILED;
893 unsigned int id, lun;
894 unsigned long serial;
895
896 qla2x00_block_error_handler(cmd);
897
898 id = cmd->device->id;
899 lun = cmd->device->lun;
900 serial = cmd->serial_number;
901
902 if (!fcport)
903 return ret;
904
905 qla_printk(KERN_INFO, ha,
906 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
907
908 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
909 DEBUG2(printk("%s failed:board disabled\n",__func__));
910 goto eh_bus_reset_done;
911 }
912
913 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
914 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
915 ret = SUCCESS;
916 }
917 if (ret == FAILED)
918 goto eh_bus_reset_done;
919
920 /* Flush outstanding commands. */
921 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
922 QLA_SUCCESS)
923 ret = FAILED;
924
925 eh_bus_reset_done:
926 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
927 (ret == FAILED) ? "failed" : "succeded");
928
929 return ret;
930 }
931
932 /**************************************************************************
933 * qla2xxx_eh_host_reset
934 *
935 * Description:
936 * The reset function will reset the Adapter.
937 *
938 * Input:
939 * cmd = Linux SCSI command packet of the command that cause the
940 * adapter reset.
941 *
942 * Returns:
943 * Either SUCCESS or FAILED.
944 *
945 * Note:
946 **************************************************************************/
947 static int
948 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
949 {
950 scsi_qla_host_t *ha = shost_priv(cmd->device->host);
951 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
952 int ret = FAILED;
953 unsigned int id, lun;
954 unsigned long serial;
955 scsi_qla_host_t *pha = to_qla_parent(ha);
956
957 qla2x00_block_error_handler(cmd);
958
959 id = cmd->device->id;
960 lun = cmd->device->lun;
961 serial = cmd->serial_number;
962
963 if (!fcport)
964 return ret;
965
966 qla_printk(KERN_INFO, ha,
967 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
968
969 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
970 goto eh_host_reset_lock;
971
972 /*
973 * Fixme-may be dpc thread is active and processing
974 * loop_resync,so wait a while for it to
975 * be completed and then issue big hammer.Otherwise
976 * it may cause I/O failure as big hammer marks the
977 * devices as lost kicking of the port_down_timer
978 * while dpc is stuck for the mailbox to complete.
979 */
980 qla2x00_wait_for_loop_ready(ha);
981 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
982 if (qla2x00_abort_isp(pha)) {
983 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
984 /* failed. schedule dpc to try */
985 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
986
987 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
988 goto eh_host_reset_lock;
989 }
990 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
991
992 /* Waiting for our command in done_queue to be returned to OS.*/
993 if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
994 QLA_SUCCESS)
995 ret = SUCCESS;
996
997 if (ha->parent)
998 qla2x00_vp_abort_isp(ha);
999
1000 eh_host_reset_lock:
1001 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1002 (ret == FAILED) ? "failed" : "succeded");
1003
1004 return ret;
1005 }
1006
1007 /*
1008 * qla2x00_loop_reset
1009 * Issue loop reset.
1010 *
1011 * Input:
1012 * ha = adapter block pointer.
1013 *
1014 * Returns:
1015 * 0 = success
1016 */
1017 int
1018 qla2x00_loop_reset(scsi_qla_host_t *ha)
1019 {
1020 int ret;
1021 struct fc_port *fcport;
1022
1023 if (ha->flags.enable_lip_full_login) {
1024 ret = qla2x00_full_login_lip(ha);
1025 if (ret != QLA_SUCCESS) {
1026 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1027 "full_login_lip=%d.\n", __func__, ha->host_no,
1028 ret));
1029 }
1030 atomic_set(&ha->loop_state, LOOP_DOWN);
1031 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1032 qla2x00_mark_all_devices_lost(ha, 0);
1033 qla2x00_wait_for_loop_ready(ha);
1034 }
1035
1036 if (ha->flags.enable_lip_reset) {
1037 ret = qla2x00_lip_reset(ha);
1038 if (ret != QLA_SUCCESS) {
1039 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1040 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1041 }
1042 qla2x00_wait_for_loop_ready(ha);
1043 }
1044
1045 if (ha->flags.enable_target_reset) {
1046 list_for_each_entry(fcport, &ha->fcports, list) {
1047 if (fcport->port_type != FCT_TARGET)
1048 continue;
1049
1050 ret = ha->isp_ops->target_reset(fcport, 0);
1051 if (ret != QLA_SUCCESS) {
1052 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1053 "target_reset=%d d_id=%x.\n", __func__,
1054 ha->host_no, ret, fcport->d_id.b24));
1055 }
1056 }
1057 }
1058
1059 /* Issue marker command only when we are going to start the I/O */
1060 ha->marker_needed = 1;
1061
1062 return QLA_SUCCESS;
1063 }
1064
1065 void
1066 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1067 {
1068 int cnt;
1069 unsigned long flags;
1070 srb_t *sp;
1071
1072 spin_lock_irqsave(&ha->hardware_lock, flags);
1073 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1074 sp = ha->outstanding_cmds[cnt];
1075 if (sp) {
1076 ha->outstanding_cmds[cnt] = NULL;
1077 sp->flags = 0;
1078 sp->cmd->result = res;
1079 sp->cmd->host_scribble = (unsigned char *)NULL;
1080 qla2x00_sp_compl(ha, sp);
1081 }
1082 }
1083 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1084 }
1085
1086 static int
1087 qla2xxx_slave_alloc(struct scsi_device *sdev)
1088 {
1089 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1090
1091 if (!rport || fc_remote_port_chkready(rport))
1092 return -ENXIO;
1093
1094 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1095
1096 return 0;
1097 }
1098
1099 static int
1100 qla2xxx_slave_configure(struct scsi_device *sdev)
1101 {
1102 scsi_qla_host_t *ha = shost_priv(sdev->host);
1103 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1104
1105 if (sdev->tagged_supported)
1106 scsi_activate_tcq(sdev, ha->max_q_depth);
1107 else
1108 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1109
1110 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1111
1112 return 0;
1113 }
1114
1115 static void
1116 qla2xxx_slave_destroy(struct scsi_device *sdev)
1117 {
1118 sdev->hostdata = NULL;
1119 }
1120
1121 static int
1122 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1123 {
1124 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1125 return sdev->queue_depth;
1126 }
1127
1128 static int
1129 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1130 {
1131 if (sdev->tagged_supported) {
1132 scsi_set_tag_type(sdev, tag_type);
1133 if (tag_type)
1134 scsi_activate_tcq(sdev, sdev->queue_depth);
1135 else
1136 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1137 } else
1138 tag_type = 0;
1139
1140 return tag_type;
1141 }
1142
1143 /**
1144 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1145 * @ha: HA context
1146 *
1147 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1148 * supported addressing method.
1149 */
1150 static void
1151 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1152 {
1153 /* Assume a 32bit DMA mask. */
1154 ha->flags.enable_64bit_addressing = 0;
1155
1156 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1157 /* Any upper-dword bits set? */
1158 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1159 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1160 /* Ok, a 64bit DMA mask is applicable. */
1161 ha->flags.enable_64bit_addressing = 1;
1162 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1163 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1164 return;
1165 }
1166 }
1167
1168 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1169 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1170 }
1171
1172 static void
1173 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1174 {
1175 unsigned long flags = 0;
1176 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1177
1178 spin_lock_irqsave(&ha->hardware_lock, flags);
1179 ha->interrupts_on = 1;
1180 /* enable risc and host interrupts */
1181 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1182 RD_REG_WORD(&reg->ictrl);
1183 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1184
1185 }
1186
1187 static void
1188 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1189 {
1190 unsigned long flags = 0;
1191 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1192
1193 spin_lock_irqsave(&ha->hardware_lock, flags);
1194 ha->interrupts_on = 0;
1195 /* disable risc and host interrupts */
1196 WRT_REG_WORD(&reg->ictrl, 0);
1197 RD_REG_WORD(&reg->ictrl);
1198 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1199 }
1200
1201 static void
1202 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1203 {
1204 unsigned long flags = 0;
1205 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1206
1207 spin_lock_irqsave(&ha->hardware_lock, flags);
1208 ha->interrupts_on = 1;
1209 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1210 RD_REG_DWORD(&reg->ictrl);
1211 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1212 }
1213
1214 static void
1215 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1216 {
1217 unsigned long flags = 0;
1218 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1219
1220 spin_lock_irqsave(&ha->hardware_lock, flags);
1221 ha->interrupts_on = 0;
1222 WRT_REG_DWORD(&reg->ictrl, 0);
1223 RD_REG_DWORD(&reg->ictrl);
1224 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1225 }
1226
1227 static struct isp_operations qla2100_isp_ops = {
1228 .pci_config = qla2100_pci_config,
1229 .reset_chip = qla2x00_reset_chip,
1230 .chip_diag = qla2x00_chip_diag,
1231 .config_rings = qla2x00_config_rings,
1232 .reset_adapter = qla2x00_reset_adapter,
1233 .nvram_config = qla2x00_nvram_config,
1234 .update_fw_options = qla2x00_update_fw_options,
1235 .load_risc = qla2x00_load_risc,
1236 .pci_info_str = qla2x00_pci_info_str,
1237 .fw_version_str = qla2x00_fw_version_str,
1238 .intr_handler = qla2100_intr_handler,
1239 .enable_intrs = qla2x00_enable_intrs,
1240 .disable_intrs = qla2x00_disable_intrs,
1241 .abort_command = qla2x00_abort_command,
1242 .target_reset = qla2x00_abort_target,
1243 .lun_reset = qla2x00_lun_reset,
1244 .fabric_login = qla2x00_login_fabric,
1245 .fabric_logout = qla2x00_fabric_logout,
1246 .calc_req_entries = qla2x00_calc_iocbs_32,
1247 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1248 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1249 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1250 .read_nvram = qla2x00_read_nvram_data,
1251 .write_nvram = qla2x00_write_nvram_data,
1252 .fw_dump = qla2100_fw_dump,
1253 .beacon_on = NULL,
1254 .beacon_off = NULL,
1255 .beacon_blink = NULL,
1256 .read_optrom = qla2x00_read_optrom_data,
1257 .write_optrom = qla2x00_write_optrom_data,
1258 .get_flash_version = qla2x00_get_flash_version,
1259 };
1260
1261 static struct isp_operations qla2300_isp_ops = {
1262 .pci_config = qla2300_pci_config,
1263 .reset_chip = qla2x00_reset_chip,
1264 .chip_diag = qla2x00_chip_diag,
1265 .config_rings = qla2x00_config_rings,
1266 .reset_adapter = qla2x00_reset_adapter,
1267 .nvram_config = qla2x00_nvram_config,
1268 .update_fw_options = qla2x00_update_fw_options,
1269 .load_risc = qla2x00_load_risc,
1270 .pci_info_str = qla2x00_pci_info_str,
1271 .fw_version_str = qla2x00_fw_version_str,
1272 .intr_handler = qla2300_intr_handler,
1273 .enable_intrs = qla2x00_enable_intrs,
1274 .disable_intrs = qla2x00_disable_intrs,
1275 .abort_command = qla2x00_abort_command,
1276 .target_reset = qla2x00_abort_target,
1277 .lun_reset = qla2x00_lun_reset,
1278 .fabric_login = qla2x00_login_fabric,
1279 .fabric_logout = qla2x00_fabric_logout,
1280 .calc_req_entries = qla2x00_calc_iocbs_32,
1281 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1282 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1283 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1284 .read_nvram = qla2x00_read_nvram_data,
1285 .write_nvram = qla2x00_write_nvram_data,
1286 .fw_dump = qla2300_fw_dump,
1287 .beacon_on = qla2x00_beacon_on,
1288 .beacon_off = qla2x00_beacon_off,
1289 .beacon_blink = qla2x00_beacon_blink,
1290 .read_optrom = qla2x00_read_optrom_data,
1291 .write_optrom = qla2x00_write_optrom_data,
1292 .get_flash_version = qla2x00_get_flash_version,
1293 };
1294
1295 static struct isp_operations qla24xx_isp_ops = {
1296 .pci_config = qla24xx_pci_config,
1297 .reset_chip = qla24xx_reset_chip,
1298 .chip_diag = qla24xx_chip_diag,
1299 .config_rings = qla24xx_config_rings,
1300 .reset_adapter = qla24xx_reset_adapter,
1301 .nvram_config = qla24xx_nvram_config,
1302 .update_fw_options = qla24xx_update_fw_options,
1303 .load_risc = qla24xx_load_risc,
1304 .pci_info_str = qla24xx_pci_info_str,
1305 .fw_version_str = qla24xx_fw_version_str,
1306 .intr_handler = qla24xx_intr_handler,
1307 .enable_intrs = qla24xx_enable_intrs,
1308 .disable_intrs = qla24xx_disable_intrs,
1309 .abort_command = qla24xx_abort_command,
1310 .target_reset = qla24xx_abort_target,
1311 .lun_reset = qla24xx_lun_reset,
1312 .fabric_login = qla24xx_login_fabric,
1313 .fabric_logout = qla24xx_fabric_logout,
1314 .calc_req_entries = NULL,
1315 .build_iocbs = NULL,
1316 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1317 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1318 .read_nvram = qla24xx_read_nvram_data,
1319 .write_nvram = qla24xx_write_nvram_data,
1320 .fw_dump = qla24xx_fw_dump,
1321 .beacon_on = qla24xx_beacon_on,
1322 .beacon_off = qla24xx_beacon_off,
1323 .beacon_blink = qla24xx_beacon_blink,
1324 .read_optrom = qla24xx_read_optrom_data,
1325 .write_optrom = qla24xx_write_optrom_data,
1326 .get_flash_version = qla24xx_get_flash_version,
1327 };
1328
1329 static struct isp_operations qla25xx_isp_ops = {
1330 .pci_config = qla25xx_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 .target_reset = qla24xx_abort_target,
1345 .lun_reset = qla24xx_lun_reset,
1346 .fabric_login = qla24xx_login_fabric,
1347 .fabric_logout = qla24xx_fabric_logout,
1348 .calc_req_entries = NULL,
1349 .build_iocbs = NULL,
1350 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1351 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1352 .read_nvram = qla25xx_read_nvram_data,
1353 .write_nvram = qla25xx_write_nvram_data,
1354 .fw_dump = qla25xx_fw_dump,
1355 .beacon_on = qla24xx_beacon_on,
1356 .beacon_off = qla24xx_beacon_off,
1357 .beacon_blink = qla24xx_beacon_blink,
1358 .read_optrom = qla25xx_read_optrom_data,
1359 .write_optrom = qla24xx_write_optrom_data,
1360 .get_flash_version = qla24xx_get_flash_version,
1361 };
1362
1363 static inline void
1364 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1365 {
1366 ha->device_type = DT_EXTENDED_IDS;
1367 switch (ha->pdev->device) {
1368 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1369 ha->device_type |= DT_ISP2100;
1370 ha->device_type &= ~DT_EXTENDED_IDS;
1371 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1372 break;
1373 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1374 ha->device_type |= DT_ISP2200;
1375 ha->device_type &= ~DT_EXTENDED_IDS;
1376 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1377 break;
1378 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1379 ha->device_type |= DT_ISP2300;
1380 ha->device_type |= DT_ZIO_SUPPORTED;
1381 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1382 break;
1383 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1384 ha->device_type |= DT_ISP2312;
1385 ha->device_type |= DT_ZIO_SUPPORTED;
1386 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1387 break;
1388 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1389 ha->device_type |= DT_ISP2322;
1390 ha->device_type |= DT_ZIO_SUPPORTED;
1391 if (ha->pdev->subsystem_vendor == 0x1028 &&
1392 ha->pdev->subsystem_device == 0x0170)
1393 ha->device_type |= DT_OEM_001;
1394 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1395 break;
1396 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1397 ha->device_type |= DT_ISP6312;
1398 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1399 break;
1400 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1401 ha->device_type |= DT_ISP6322;
1402 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1403 break;
1404 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1405 ha->device_type |= DT_ISP2422;
1406 ha->device_type |= DT_ZIO_SUPPORTED;
1407 ha->device_type |= DT_FWI2;
1408 ha->device_type |= DT_IIDMA;
1409 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1410 break;
1411 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1412 ha->device_type |= DT_ISP2432;
1413 ha->device_type |= DT_ZIO_SUPPORTED;
1414 ha->device_type |= DT_FWI2;
1415 ha->device_type |= DT_IIDMA;
1416 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1417 break;
1418 case PCI_DEVICE_ID_QLOGIC_ISP8432:
1419 ha->device_type |= DT_ISP8432;
1420 ha->device_type |= DT_ZIO_SUPPORTED;
1421 ha->device_type |= DT_FWI2;
1422 ha->device_type |= DT_IIDMA;
1423 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1424 break;
1425 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1426 ha->device_type |= DT_ISP5422;
1427 ha->device_type |= DT_FWI2;
1428 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1429 break;
1430 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1431 ha->device_type |= DT_ISP5432;
1432 ha->device_type |= DT_FWI2;
1433 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1434 break;
1435 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1436 ha->device_type |= DT_ISP2532;
1437 ha->device_type |= DT_ZIO_SUPPORTED;
1438 ha->device_type |= DT_FWI2;
1439 ha->device_type |= DT_IIDMA;
1440 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1441 break;
1442 }
1443 }
1444
1445 static int
1446 qla2x00_iospace_config(scsi_qla_host_t *ha)
1447 {
1448 resource_size_t pio;
1449
1450 if (pci_request_selected_regions(ha->pdev, ha->bars,
1451 QLA2XXX_DRIVER_NAME)) {
1452 qla_printk(KERN_WARNING, ha,
1453 "Failed to reserve PIO/MMIO regions (%s)\n",
1454 pci_name(ha->pdev));
1455
1456 goto iospace_error_exit;
1457 }
1458 if (!(ha->bars & 1))
1459 goto skip_pio;
1460
1461 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1462 pio = pci_resource_start(ha->pdev, 0);
1463 if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1464 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1465 qla_printk(KERN_WARNING, ha,
1466 "Invalid PCI I/O region size (%s)...\n",
1467 pci_name(ha->pdev));
1468 pio = 0;
1469 }
1470 } else {
1471 qla_printk(KERN_WARNING, ha,
1472 "region #0 not a PIO resource (%s)...\n",
1473 pci_name(ha->pdev));
1474 pio = 0;
1475 }
1476 ha->pio_address = pio;
1477
1478 skip_pio:
1479 /* Use MMIO operations for all accesses. */
1480 if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1481 qla_printk(KERN_ERR, ha,
1482 "region #1 not an MMIO resource (%s), aborting\n",
1483 pci_name(ha->pdev));
1484 goto iospace_error_exit;
1485 }
1486 if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1487 qla_printk(KERN_ERR, ha,
1488 "Invalid PCI mem region size (%s), aborting\n",
1489 pci_name(ha->pdev));
1490 goto iospace_error_exit;
1491 }
1492
1493 ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1494 if (!ha->iobase) {
1495 qla_printk(KERN_ERR, ha,
1496 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1497
1498 goto iospace_error_exit;
1499 }
1500
1501 return (0);
1502
1503 iospace_error_exit:
1504 return (-ENOMEM);
1505 }
1506
1507 static void
1508 qla2xxx_scan_start(struct Scsi_Host *shost)
1509 {
1510 scsi_qla_host_t *ha = shost_priv(shost);
1511
1512 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1513 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1514 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1515 }
1516
1517 static int
1518 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1519 {
1520 scsi_qla_host_t *ha = shost_priv(shost);
1521
1522 if (!ha->host)
1523 return 1;
1524 if (time > ha->loop_reset_delay * HZ)
1525 return 1;
1526
1527 return atomic_read(&ha->loop_state) == LOOP_READY;
1528 }
1529
1530 /*
1531 * PCI driver interface
1532 */
1533 static int __devinit
1534 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1535 {
1536 int ret = -ENODEV;
1537 struct Scsi_Host *host;
1538 scsi_qla_host_t *ha;
1539 char pci_info[30];
1540 char fw_str[30];
1541 struct scsi_host_template *sht;
1542 int bars, mem_only = 0;
1543
1544 bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1545 sht = &qla2x00_driver_template;
1546 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1547 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1548 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1549 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1550 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1551 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1552 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1553 sht = &qla24xx_driver_template;
1554 mem_only = 1;
1555 }
1556
1557 if (mem_only) {
1558 if (pci_enable_device_mem(pdev))
1559 goto probe_out;
1560 } else {
1561 if (pci_enable_device(pdev))
1562 goto probe_out;
1563 }
1564
1565 if (pci_find_aer_capability(pdev))
1566 if (pci_enable_pcie_error_reporting(pdev))
1567 goto probe_out;
1568
1569 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1570 if (host == NULL) {
1571 printk(KERN_WARNING
1572 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1573 goto probe_disable_device;
1574 }
1575
1576 /* Clear our data area */
1577 ha = shost_priv(host);
1578 memset(ha, 0, sizeof(scsi_qla_host_t));
1579
1580 ha->pdev = pdev;
1581 ha->host = host;
1582 ha->host_no = host->host_no;
1583 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1584 ha->parent = NULL;
1585 ha->bars = bars;
1586 ha->mem_only = mem_only;
1587 spin_lock_init(&ha->hardware_lock);
1588
1589 /* Set ISP-type information. */
1590 qla2x00_set_isp_flags(ha);
1591
1592 /* Configure PCI I/O space */
1593 ret = qla2x00_iospace_config(ha);
1594 if (ret)
1595 goto probe_failed;
1596
1597 qla_printk(KERN_INFO, ha,
1598 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1599 ha->iobase);
1600
1601 ha->prev_topology = 0;
1602 ha->init_cb_size = sizeof(init_cb_t);
1603 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1604 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1605 ha->optrom_size = OPTROM_SIZE_2300;
1606
1607 ha->max_q_depth = MAX_Q_DEPTH;
1608 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1609 ha->max_q_depth = ql2xmaxqdepth;
1610
1611 /* Assign ISP specific operations. */
1612 if (IS_QLA2100(ha)) {
1613 host->max_id = MAX_TARGETS_2100;
1614 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1615 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1616 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1617 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1618 host->sg_tablesize = 32;
1619 ha->gid_list_info_size = 4;
1620 ha->isp_ops = &qla2100_isp_ops;
1621 } else if (IS_QLA2200(ha)) {
1622 host->max_id = MAX_TARGETS_2200;
1623 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1624 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1625 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1626 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1627 ha->gid_list_info_size = 4;
1628 ha->isp_ops = &qla2100_isp_ops;
1629 } else if (IS_QLA23XX(ha)) {
1630 host->max_id = MAX_TARGETS_2200;
1631 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1632 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1633 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1634 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1635 ha->gid_list_info_size = 6;
1636 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1637 ha->optrom_size = OPTROM_SIZE_2322;
1638 ha->isp_ops = &qla2300_isp_ops;
1639 } else if (IS_QLA24XX_TYPE(ha)) {
1640 host->max_id = MAX_TARGETS_2200;
1641 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1642 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1643 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1644 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1645 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1646 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1647 ha->gid_list_info_size = 8;
1648 ha->optrom_size = OPTROM_SIZE_24XX;
1649 ha->isp_ops = &qla24xx_isp_ops;
1650 } else if (IS_QLA25XX(ha)) {
1651 host->max_id = MAX_TARGETS_2200;
1652 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1653 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1654 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1655 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1656 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1657 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1658 ha->gid_list_info_size = 8;
1659 ha->optrom_size = OPTROM_SIZE_25XX;
1660 ha->isp_ops = &qla25xx_isp_ops;
1661 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1662 FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1663 }
1664 host->can_queue = ha->request_q_length + 128;
1665
1666 /* load the F/W, read paramaters, and init the H/W */
1667 ha->instance = num_hosts;
1668
1669 mutex_init(&ha->vport_lock);
1670 init_completion(&ha->mbx_cmd_comp);
1671 complete(&ha->mbx_cmd_comp);
1672 init_completion(&ha->mbx_intr_comp);
1673
1674 INIT_LIST_HEAD(&ha->list);
1675 INIT_LIST_HEAD(&ha->fcports);
1676 INIT_LIST_HEAD(&ha->vp_list);
1677 INIT_LIST_HEAD(&ha->work_list);
1678
1679 set_bit(0, (unsigned long *) ha->vp_idx_map);
1680
1681 qla2x00_config_dma_addressing(ha);
1682 if (qla2x00_mem_alloc(ha)) {
1683 qla_printk(KERN_WARNING, ha,
1684 "[ERROR] Failed to allocate memory for adapter\n");
1685
1686 ret = -ENOMEM;
1687 goto probe_failed;
1688 }
1689
1690 if (qla2x00_initialize_adapter(ha)) {
1691 qla_printk(KERN_WARNING, ha,
1692 "Failed to initialize adapter\n");
1693
1694 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1695 "Adapter flags %x.\n",
1696 ha->host_no, ha->device_flags));
1697
1698 ret = -ENODEV;
1699 goto probe_failed;
1700 }
1701
1702 /*
1703 * Startup the kernel thread for this host adapter
1704 */
1705 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1706 "%s_dpc", ha->host_str);
1707 if (IS_ERR(ha->dpc_thread)) {
1708 qla_printk(KERN_WARNING, ha,
1709 "Unable to start DPC thread!\n");
1710 ret = PTR_ERR(ha->dpc_thread);
1711 goto probe_failed;
1712 }
1713
1714 host->this_id = 255;
1715 host->cmd_per_lun = 3;
1716 host->unique_id = ha->instance;
1717 host->max_cmd_len = MAX_CMDSZ;
1718 host->max_channel = MAX_BUSES - 1;
1719 host->max_lun = MAX_LUNS;
1720 host->transportt = qla2xxx_transport_template;
1721
1722 ret = qla2x00_request_irqs(ha);
1723 if (ret)
1724 goto probe_failed;
1725
1726 /* Initialized the timer */
1727 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1728
1729 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1730 ha->host_no, ha));
1731
1732 pci_set_drvdata(pdev, ha);
1733
1734 ha->flags.init_done = 1;
1735 ha->flags.online = 1;
1736
1737 num_hosts++;
1738
1739 ret = scsi_add_host(host, &pdev->dev);
1740 if (ret)
1741 goto probe_failed;
1742
1743 scsi_scan_host(host);
1744
1745 qla2x00_alloc_sysfs_attr(ha);
1746
1747 qla2x00_init_host_attr(ha);
1748
1749 qla2x00_dfs_setup(ha);
1750
1751 qla_printk(KERN_INFO, ha, "\n"
1752 " QLogic Fibre Channel HBA Driver: %s\n"
1753 " QLogic %s - %s\n"
1754 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1755 qla2x00_version_str, ha->model_number,
1756 ha->model_desc ? ha->model_desc: "", pdev->device,
1757 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1758 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1759 ha->isp_ops->fw_version_str(ha, fw_str));
1760
1761 return 0;
1762
1763 probe_failed:
1764 qla2x00_free_device(ha);
1765
1766 scsi_host_put(host);
1767
1768 probe_disable_device:
1769 pci_disable_device(pdev);
1770
1771 probe_out:
1772 return ret;
1773 }
1774
1775 static void
1776 qla2x00_remove_one(struct pci_dev *pdev)
1777 {
1778 scsi_qla_host_t *ha;
1779
1780 ha = pci_get_drvdata(pdev);
1781
1782 qla2x00_dfs_remove(ha);
1783
1784 qla84xx_put_chip(ha);
1785
1786 qla2x00_free_sysfs_attr(ha);
1787
1788 fc_remove_host(ha->host);
1789
1790 scsi_remove_host(ha->host);
1791
1792 qla2x00_free_device(ha);
1793
1794 scsi_host_put(ha->host);
1795
1796 pci_disable_device(pdev);
1797 pci_set_drvdata(pdev, NULL);
1798 }
1799
1800 static void
1801 qla2x00_free_device(scsi_qla_host_t *ha)
1802 {
1803 qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1804
1805 /* Disable timer */
1806 if (ha->timer_active)
1807 qla2x00_stop_timer(ha);
1808
1809 ha->flags.online = 0;
1810
1811 /* Kill the kernel thread for this host */
1812 if (ha->dpc_thread) {
1813 struct task_struct *t = ha->dpc_thread;
1814
1815 /*
1816 * qla2xxx_wake_dpc checks for ->dpc_thread
1817 * so we need to zero it out.
1818 */
1819 ha->dpc_thread = NULL;
1820 kthread_stop(t);
1821 }
1822
1823 if (ha->flags.fce_enabled)
1824 qla2x00_disable_fce_trace(ha, NULL, NULL);
1825
1826 if (ha->eft)
1827 qla2x00_disable_eft_trace(ha);
1828
1829 /* Stop currently executing firmware. */
1830 qla2x00_try_to_stop_firmware(ha);
1831
1832 /* turn-off interrupts on the card */
1833 if (ha->interrupts_on)
1834 ha->isp_ops->disable_intrs(ha);
1835
1836 qla2x00_mem_free(ha);
1837
1838 qla2x00_free_irqs(ha);
1839
1840 /* release io space registers */
1841 if (ha->iobase)
1842 iounmap(ha->iobase);
1843 pci_release_selected_regions(ha->pdev, ha->bars);
1844 }
1845
1846 static inline void
1847 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1848 int defer)
1849 {
1850 struct fc_rport *rport;
1851
1852 if (!fcport->rport)
1853 return;
1854
1855 rport = fcport->rport;
1856 if (defer) {
1857 spin_lock_irq(ha->host->host_lock);
1858 fcport->drport = rport;
1859 spin_unlock_irq(ha->host->host_lock);
1860 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1861 qla2xxx_wake_dpc(ha);
1862 } else
1863 fc_remote_port_delete(rport);
1864 }
1865
1866 /*
1867 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1868 *
1869 * Input: ha = adapter block pointer. fcport = port structure pointer.
1870 *
1871 * Return: None.
1872 *
1873 * Context:
1874 */
1875 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1876 int do_login, int defer)
1877 {
1878 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1879 ha->vp_idx == fcport->vp_idx)
1880 qla2x00_schedule_rport_del(ha, fcport, defer);
1881
1882 /*
1883 * We may need to retry the login, so don't change the state of the
1884 * port but do the retries.
1885 */
1886 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1887 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1888
1889 if (!do_login)
1890 return;
1891
1892 if (fcport->login_retry == 0) {
1893 fcport->login_retry = ha->login_retry_count;
1894 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1895
1896 DEBUG(printk("scsi(%ld): Port login retry: "
1897 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1898 "id = 0x%04x retry cnt=%d\n",
1899 ha->host_no,
1900 fcport->port_name[0],
1901 fcport->port_name[1],
1902 fcport->port_name[2],
1903 fcport->port_name[3],
1904 fcport->port_name[4],
1905 fcport->port_name[5],
1906 fcport->port_name[6],
1907 fcport->port_name[7],
1908 fcport->loop_id,
1909 fcport->login_retry));
1910 }
1911 }
1912
1913 /*
1914 * qla2x00_mark_all_devices_lost
1915 * Updates fcport state when device goes offline.
1916 *
1917 * Input:
1918 * ha = adapter block pointer.
1919 * fcport = port structure pointer.
1920 *
1921 * Return:
1922 * None.
1923 *
1924 * Context:
1925 */
1926 void
1927 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1928 {
1929 fc_port_t *fcport;
1930 scsi_qla_host_t *pha = to_qla_parent(ha);
1931
1932 list_for_each_entry(fcport, &pha->fcports, list) {
1933 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1934 continue;
1935 /*
1936 * No point in marking the device as lost, if the device is
1937 * already DEAD.
1938 */
1939 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1940 continue;
1941 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1942 if (defer)
1943 qla2x00_schedule_rport_del(ha, fcport, defer);
1944 else if (ha->vp_idx == fcport->vp_idx)
1945 qla2x00_schedule_rport_del(ha, fcport, defer);
1946 }
1947 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1948 }
1949
1950 if (defer)
1951 qla2xxx_wake_dpc(ha);
1952 }
1953
1954 /*
1955 * qla2x00_mem_alloc
1956 * Allocates adapter memory.
1957 *
1958 * Returns:
1959 * 0 = success.
1960 * !0 = failure.
1961 */
1962 static int
1963 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1964 {
1965 char name[16];
1966
1967 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1968 (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1969 GFP_KERNEL);
1970 if (!ha->request_ring)
1971 goto fail;
1972
1973 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1974 (ha->response_q_length + 1) * sizeof(response_t),
1975 &ha->response_dma, GFP_KERNEL);
1976 if (!ha->response_ring)
1977 goto fail_free_request_ring;
1978
1979 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1980 &ha->gid_list_dma, GFP_KERNEL);
1981 if (!ha->gid_list)
1982 goto fail_free_response_ring;
1983
1984 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1985 &ha->init_cb_dma, GFP_KERNEL);
1986 if (!ha->init_cb)
1987 goto fail_free_gid_list;
1988
1989 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1990 ha->host_no);
1991 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1992 DMA_POOL_SIZE, 8, 0);
1993 if (!ha->s_dma_pool)
1994 goto fail_free_init_cb;
1995
1996 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1997 if (!ha->srb_mempool)
1998 goto fail_free_s_dma_pool;
1999
2000 /* Get memory for cached NVRAM */
2001 ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
2002 if (!ha->nvram)
2003 goto fail_free_srb_mempool;
2004
2005 /* Allocate memory for SNS commands */
2006 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2007 /* Get consistent memory allocated for SNS commands */
2008 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2009 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2010 if (!ha->sns_cmd)
2011 goto fail_free_nvram;
2012 } else {
2013 /* Get consistent memory allocated for MS IOCB */
2014 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2015 &ha->ms_iocb_dma);
2016 if (!ha->ms_iocb)
2017 goto fail_free_nvram;
2018
2019 /* Get consistent memory allocated for CT SNS commands */
2020 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2021 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2022 if (!ha->ct_sns)
2023 goto fail_free_ms_iocb;
2024 }
2025
2026 return 0;
2027
2028 fail_free_ms_iocb:
2029 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2030 ha->ms_iocb = NULL;
2031 ha->ms_iocb_dma = 0;
2032 fail_free_nvram:
2033 kfree(ha->nvram);
2034 ha->nvram = NULL;
2035 fail_free_srb_mempool:
2036 mempool_destroy(ha->srb_mempool);
2037 ha->srb_mempool = NULL;
2038 fail_free_s_dma_pool:
2039 dma_pool_destroy(ha->s_dma_pool);
2040 ha->s_dma_pool = NULL;
2041 fail_free_init_cb:
2042 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2043 ha->init_cb_dma);
2044 ha->init_cb = NULL;
2045 ha->init_cb_dma = 0;
2046 fail_free_gid_list:
2047 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2048 ha->gid_list_dma);
2049 ha->gid_list = NULL;
2050 ha->gid_list_dma = 0;
2051 fail_free_response_ring:
2052 dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2053 sizeof(response_t), ha->response_ring, ha->response_dma);
2054 ha->response_ring = NULL;
2055 ha->response_dma = 0;
2056 fail_free_request_ring:
2057 dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2058 sizeof(request_t), ha->request_ring, ha->request_dma);
2059 ha->request_ring = NULL;
2060 ha->request_dma = 0;
2061 fail:
2062 return -ENOMEM;
2063 }
2064
2065 /*
2066 * qla2x00_mem_free
2067 * Frees all adapter allocated memory.
2068 *
2069 * Input:
2070 * ha = adapter block pointer.
2071 */
2072 static void
2073 qla2x00_mem_free(scsi_qla_host_t *ha)
2074 {
2075 struct list_head *fcpl, *fcptemp;
2076 fc_port_t *fcport;
2077
2078 if (ha->srb_mempool)
2079 mempool_destroy(ha->srb_mempool);
2080
2081 if (ha->fce)
2082 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2083 ha->fce_dma);
2084
2085 if (ha->fw_dump) {
2086 if (ha->eft)
2087 dma_free_coherent(&ha->pdev->dev,
2088 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2089 vfree(ha->fw_dump);
2090 }
2091
2092 if (ha->sns_cmd)
2093 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2094 ha->sns_cmd, ha->sns_cmd_dma);
2095
2096 if (ha->ct_sns)
2097 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2098 ha->ct_sns, ha->ct_sns_dma);
2099
2100 if (ha->sfp_data)
2101 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2102
2103 if (ha->ms_iocb)
2104 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2105
2106 if (ha->s_dma_pool)
2107 dma_pool_destroy(ha->s_dma_pool);
2108
2109 if (ha->init_cb)
2110 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2111 ha->init_cb, ha->init_cb_dma);
2112
2113 if (ha->gid_list)
2114 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2115 ha->gid_list_dma);
2116
2117 if (ha->response_ring)
2118 dma_free_coherent(&ha->pdev->dev,
2119 (ha->response_q_length + 1) * sizeof(response_t),
2120 ha->response_ring, ha->response_dma);
2121
2122 if (ha->request_ring)
2123 dma_free_coherent(&ha->pdev->dev,
2124 (ha->request_q_length + 1) * sizeof(request_t),
2125 ha->request_ring, ha->request_dma);
2126
2127 ha->srb_mempool = NULL;
2128 ha->eft = NULL;
2129 ha->eft_dma = 0;
2130 ha->sns_cmd = NULL;
2131 ha->sns_cmd_dma = 0;
2132 ha->ct_sns = NULL;
2133 ha->ct_sns_dma = 0;
2134 ha->ms_iocb = NULL;
2135 ha->ms_iocb_dma = 0;
2136 ha->init_cb = NULL;
2137 ha->init_cb_dma = 0;
2138
2139 ha->s_dma_pool = NULL;
2140
2141 ha->gid_list = NULL;
2142 ha->gid_list_dma = 0;
2143
2144 ha->response_ring = NULL;
2145 ha->response_dma = 0;
2146 ha->request_ring = NULL;
2147 ha->request_dma = 0;
2148
2149 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2150 fcport = list_entry(fcpl, fc_port_t, list);
2151
2152 /* fc ports */
2153 list_del_init(&fcport->list);
2154 kfree(fcport);
2155 }
2156 INIT_LIST_HEAD(&ha->fcports);
2157
2158 ha->fw_dump = NULL;
2159 ha->fw_dumped = 0;
2160 ha->fw_dump_reading = 0;
2161
2162 vfree(ha->optrom_buffer);
2163 kfree(ha->nvram);
2164 }
2165
2166 static struct qla_work_evt *
2167 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2168 int locked)
2169 {
2170 struct qla_work_evt *e;
2171
2172 e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2173 GFP_KERNEL);
2174 if (!e)
2175 return NULL;
2176
2177 INIT_LIST_HEAD(&e->list);
2178 e->type = type;
2179 e->flags = QLA_EVT_FLAG_FREE;
2180 return e;
2181 }
2182
2183 static int
2184 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2185 {
2186 unsigned long flags;
2187 scsi_qla_host_t *pha = to_qla_parent(ha);
2188
2189 if (!locked)
2190 spin_lock_irqsave(&pha->hardware_lock, flags);
2191 list_add_tail(&e->list, &ha->work_list);
2192 qla2xxx_wake_dpc(ha);
2193 if (!locked)
2194 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2195 return QLA_SUCCESS;
2196 }
2197
2198 int
2199 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2200 u32 data)
2201 {
2202 struct qla_work_evt *e;
2203
2204 e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2205 if (!e)
2206 return QLA_FUNCTION_FAILED;
2207
2208 e->u.aen.code = code;
2209 e->u.aen.data = data;
2210 return qla2x00_post_work(ha, e, 1);
2211 }
2212
2213 int
2214 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2215 uint16_t d2, uint16_t d3)
2216 {
2217 struct qla_work_evt *e;
2218
2219 e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2220 if (!e)
2221 return QLA_FUNCTION_FAILED;
2222
2223 e->u.hwe.code = code;
2224 e->u.hwe.d1 = d1;
2225 e->u.hwe.d2 = d2;
2226 e->u.hwe.d3 = d3;
2227 return qla2x00_post_work(ha, e, 1);
2228 }
2229
2230 static void
2231 qla2x00_do_work(struct scsi_qla_host *ha)
2232 {
2233 struct qla_work_evt *e;
2234 scsi_qla_host_t *pha = to_qla_parent(ha);
2235
2236 spin_lock_irq(&pha->hardware_lock);
2237 while (!list_empty(&ha->work_list)) {
2238 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2239 list_del_init(&e->list);
2240 spin_unlock_irq(&pha->hardware_lock);
2241
2242 switch (e->type) {
2243 case QLA_EVT_AEN:
2244 fc_host_post_event(ha->host, fc_get_event_number(),
2245 e->u.aen.code, e->u.aen.data);
2246 break;
2247 case QLA_EVT_HWE_LOG:
2248 qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2249 e->u.hwe.d2, e->u.hwe.d3);
2250 break;
2251 }
2252 if (e->flags & QLA_EVT_FLAG_FREE)
2253 kfree(e);
2254 spin_lock_irq(&pha->hardware_lock);
2255 }
2256 spin_unlock_irq(&pha->hardware_lock);
2257 }
2258
2259 /**************************************************************************
2260 * qla2x00_do_dpc
2261 * This kernel thread is a task that is schedule by the interrupt handler
2262 * to perform the background processing for interrupts.
2263 *
2264 * Notes:
2265 * This task always run in the context of a kernel thread. It
2266 * is kick-off by the driver's detect code and starts up
2267 * up one per adapter. It immediately goes to sleep and waits for
2268 * some fibre event. When either the interrupt handler or
2269 * the timer routine detects a event it will one of the task
2270 * bits then wake us up.
2271 **************************************************************************/
2272 static int
2273 qla2x00_do_dpc(void *data)
2274 {
2275 int rval;
2276 scsi_qla_host_t *ha;
2277 fc_port_t *fcport;
2278 uint8_t status;
2279 uint16_t next_loopid;
2280 struct scsi_qla_host *vha;
2281 int i;
2282
2283
2284 ha = (scsi_qla_host_t *)data;
2285
2286 set_user_nice(current, -20);
2287
2288 while (!kthread_should_stop()) {
2289 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2290
2291 set_current_state(TASK_INTERRUPTIBLE);
2292 schedule();
2293 __set_current_state(TASK_RUNNING);
2294
2295 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2296
2297 /* Initialization not yet finished. Don't do anything yet. */
2298 if (!ha->flags.init_done)
2299 continue;
2300
2301 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2302
2303 ha->dpc_active = 1;
2304
2305 if (ha->flags.mbox_busy) {
2306 ha->dpc_active = 0;
2307 continue;
2308 }
2309
2310 qla2x00_do_work(ha);
2311
2312 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2313
2314 DEBUG(printk("scsi(%ld): dpc: sched "
2315 "qla2x00_abort_isp ha = %p\n",
2316 ha->host_no, ha));
2317 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2318 &ha->dpc_flags))) {
2319
2320 if (qla2x00_abort_isp(ha)) {
2321 /* failed. retry later */
2322 set_bit(ISP_ABORT_NEEDED,
2323 &ha->dpc_flags);
2324 }
2325 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2326 }
2327
2328 for_each_mapped_vp_idx(ha, i) {
2329 list_for_each_entry(vha, &ha->vp_list,
2330 vp_list) {
2331 if (i == vha->vp_idx) {
2332 set_bit(ISP_ABORT_NEEDED,
2333 &vha->dpc_flags);
2334 break;
2335 }
2336 }
2337 }
2338
2339 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2340 ha->host_no));
2341 }
2342
2343 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2344 qla2x00_update_fcports(ha);
2345
2346 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2347 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2348
2349 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2350 ha->host_no));
2351
2352 qla2x00_rst_aen(ha);
2353 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2354 }
2355
2356 /* Retry each device up to login retry count */
2357 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2358 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2359 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2360
2361 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2362 ha->host_no));
2363
2364 next_loopid = 0;
2365 list_for_each_entry(fcport, &ha->fcports, list) {
2366 /*
2367 * If the port is not ONLINE then try to login
2368 * to it if we haven't run out of retries.
2369 */
2370 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2371 fcport->login_retry) {
2372
2373 if (fcport->flags & FCF_FABRIC_DEVICE) {
2374 if (fcport->flags &
2375 FCF_TAPE_PRESENT)
2376 ha->isp_ops->fabric_logout(
2377 ha, fcport->loop_id,
2378 fcport->d_id.b.domain,
2379 fcport->d_id.b.area,
2380 fcport->d_id.b.al_pa);
2381 status = qla2x00_fabric_login(
2382 ha, fcport, &next_loopid);
2383 } else
2384 status =
2385 qla2x00_local_device_login(
2386 ha, fcport);
2387
2388 fcport->login_retry--;
2389 if (status == QLA_SUCCESS) {
2390 fcport->old_loop_id = fcport->loop_id;
2391
2392 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2393 ha->host_no, fcport->loop_id));
2394
2395 qla2x00_update_fcport(ha,
2396 fcport);
2397 } else if (status == 1) {
2398 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2399 /* retry the login again */
2400 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2401 ha->host_no,
2402 fcport->login_retry, fcport->loop_id));
2403 } else {
2404 fcport->login_retry = 0;
2405 }
2406 if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2407 fcport->loop_id = FC_NO_LOOP_ID;
2408 }
2409 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2410 break;
2411 }
2412 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2413 ha->host_no));
2414 }
2415
2416 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2417
2418 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2419 ha->host_no));
2420
2421 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2422 &ha->dpc_flags))) {
2423
2424 rval = qla2x00_loop_resync(ha);
2425
2426 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2427 }
2428
2429 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2430 ha->host_no));
2431 }
2432
2433 if (!ha->interrupts_on)
2434 ha->isp_ops->enable_intrs(ha);
2435
2436 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2437 ha->isp_ops->beacon_blink(ha);
2438
2439 qla2x00_do_dpc_all_vps(ha);
2440
2441 ha->dpc_active = 0;
2442 } /* End of while(1) */
2443
2444 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2445
2446 /*
2447 * Make sure that nobody tries to wake us up again.
2448 */
2449 ha->dpc_active = 0;
2450
2451 return 0;
2452 }
2453
2454 void
2455 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2456 {
2457 if (ha->dpc_thread)
2458 wake_up_process(ha->dpc_thread);
2459 }
2460
2461 /*
2462 * qla2x00_rst_aen
2463 * Processes asynchronous reset.
2464 *
2465 * Input:
2466 * ha = adapter block pointer.
2467 */
2468 static void
2469 qla2x00_rst_aen(scsi_qla_host_t *ha)
2470 {
2471 if (ha->flags.online && !ha->flags.reset_active &&
2472 !atomic_read(&ha->loop_down_timer) &&
2473 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2474 do {
2475 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2476
2477 /*
2478 * Issue marker command only when we are going to start
2479 * the I/O.
2480 */
2481 ha->marker_needed = 1;
2482 } while (!atomic_read(&ha->loop_down_timer) &&
2483 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2484 }
2485 }
2486
2487 static void
2488 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2489 {
2490 struct scsi_cmnd *cmd = sp->cmd;
2491
2492 if (sp->flags & SRB_DMA_VALID) {
2493 scsi_dma_unmap(cmd);
2494 sp->flags &= ~SRB_DMA_VALID;
2495 }
2496 CMD_SP(cmd) = NULL;
2497 }
2498
2499 void
2500 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2501 {
2502 struct scsi_cmnd *cmd = sp->cmd;
2503
2504 qla2x00_sp_free_dma(ha, sp);
2505
2506 mempool_free(sp, ha->srb_mempool);
2507
2508 cmd->scsi_done(cmd);
2509 }
2510
2511 /**************************************************************************
2512 * qla2x00_timer
2513 *
2514 * Description:
2515 * One second timer
2516 *
2517 * Context: Interrupt
2518 ***************************************************************************/
2519 void
2520 qla2x00_timer(scsi_qla_host_t *ha)
2521 {
2522 unsigned long cpu_flags = 0;
2523 fc_port_t *fcport;
2524 int start_dpc = 0;
2525 int index;
2526 srb_t *sp;
2527 int t;
2528 scsi_qla_host_t *pha = to_qla_parent(ha);
2529
2530 /*
2531 * Ports - Port down timer.
2532 *
2533 * Whenever, a port is in the LOST state we start decrementing its port
2534 * down timer every second until it reaches zero. Once it reaches zero
2535 * the port it marked DEAD.
2536 */
2537 t = 0;
2538 list_for_each_entry(fcport, &ha->fcports, list) {
2539 if (fcport->port_type != FCT_TARGET)
2540 continue;
2541
2542 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2543
2544 if (atomic_read(&fcport->port_down_timer) == 0)
2545 continue;
2546
2547 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2548 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2549
2550 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2551 "%d remaining\n",
2552 ha->host_no,
2553 t, atomic_read(&fcport->port_down_timer)));
2554 }
2555 t++;
2556 } /* End of for fcport */
2557
2558
2559 /* Loop down handler. */
2560 if (atomic_read(&ha->loop_down_timer) > 0 &&
2561 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2562
2563 if (atomic_read(&ha->loop_down_timer) ==
2564 ha->loop_down_abort_time) {
2565
2566 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2567 "queues before time expire\n",
2568 ha->host_no));
2569
2570 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2571 atomic_set(&ha->loop_state, LOOP_DEAD);
2572
2573 /* Schedule an ISP abort to return any tape commands. */
2574 /* NPIV - scan physical port only */
2575 if (!ha->parent) {
2576 spin_lock_irqsave(&ha->hardware_lock,
2577 cpu_flags);
2578 for (index = 1;
2579 index < MAX_OUTSTANDING_COMMANDS;
2580 index++) {
2581 fc_port_t *sfcp;
2582
2583 sp = ha->outstanding_cmds[index];
2584 if (!sp)
2585 continue;
2586 sfcp = sp->fcport;
2587 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2588 continue;
2589
2590 set_bit(ISP_ABORT_NEEDED,
2591 &ha->dpc_flags);
2592 break;
2593 }
2594 spin_unlock_irqrestore(&ha->hardware_lock,
2595 cpu_flags);
2596 }
2597 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2598 start_dpc++;
2599 }
2600
2601 /* if the loop has been down for 4 minutes, reinit adapter */
2602 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2603 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2604 "restarting queues.\n",
2605 ha->host_no));
2606
2607 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2608 start_dpc++;
2609
2610 if (!(ha->device_flags & DFLG_NO_CABLE) &&
2611 !ha->parent) {
2612 DEBUG(printk("scsi(%ld): Loop down - "
2613 "aborting ISP.\n",
2614 ha->host_no));
2615 qla_printk(KERN_WARNING, ha,
2616 "Loop down - aborting ISP.\n");
2617
2618 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2619 }
2620 }
2621 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2622 ha->host_no,
2623 atomic_read(&ha->loop_down_timer)));
2624 }
2625
2626 /* Check if beacon LED needs to be blinked */
2627 if (ha->beacon_blink_led == 1) {
2628 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2629 start_dpc++;
2630 }
2631
2632 /* Process any deferred work. */
2633 if (!list_empty(&ha->work_list))
2634 start_dpc++;
2635
2636 /* Schedule the DPC routine if needed */
2637 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2638 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2639 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2640 start_dpc ||
2641 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2642 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2643 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2644 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2645 qla2xxx_wake_dpc(pha);
2646
2647 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2648 }
2649
2650 /* Firmware interface routines. */
2651
2652 #define FW_BLOBS 6
2653 #define FW_ISP21XX 0
2654 #define FW_ISP22XX 1
2655 #define FW_ISP2300 2
2656 #define FW_ISP2322 3
2657 #define FW_ISP24XX 4
2658 #define FW_ISP25XX 5
2659
2660 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2661 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2662 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2663 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2664 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2665 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2666
2667 static DEFINE_MUTEX(qla_fw_lock);
2668
2669 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2670 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2671 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2672 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2673 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2674 { .name = FW_FILE_ISP24XX, },
2675 { .name = FW_FILE_ISP25XX, },
2676 };
2677
2678 struct fw_blob *
2679 qla2x00_request_firmware(scsi_qla_host_t *ha)
2680 {
2681 struct fw_blob *blob;
2682
2683 blob = NULL;
2684 if (IS_QLA2100(ha)) {
2685 blob = &qla_fw_blobs[FW_ISP21XX];
2686 } else if (IS_QLA2200(ha)) {
2687 blob = &qla_fw_blobs[FW_ISP22XX];
2688 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2689 blob = &qla_fw_blobs[FW_ISP2300];
2690 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2691 blob = &qla_fw_blobs[FW_ISP2322];
2692 } else if (IS_QLA24XX_TYPE(ha)) {
2693 blob = &qla_fw_blobs[FW_ISP24XX];
2694 } else if (IS_QLA25XX(ha)) {
2695 blob = &qla_fw_blobs[FW_ISP25XX];
2696 }
2697
2698 mutex_lock(&qla_fw_lock);
2699 if (blob->fw)
2700 goto out;
2701
2702 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2703 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2704 "(%s).\n", ha->host_no, blob->name));
2705 blob->fw = NULL;
2706 blob = NULL;
2707 goto out;
2708 }
2709
2710 out:
2711 mutex_unlock(&qla_fw_lock);
2712 return blob;
2713 }
2714
2715 static void
2716 qla2x00_release_firmware(void)
2717 {
2718 int idx;
2719
2720 mutex_lock(&qla_fw_lock);
2721 for (idx = 0; idx < FW_BLOBS; idx++)
2722 if (qla_fw_blobs[idx].fw)
2723 release_firmware(qla_fw_blobs[idx].fw);
2724 mutex_unlock(&qla_fw_lock);
2725 }
2726
2727 static pci_ers_result_t
2728 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2729 {
2730 switch (state) {
2731 case pci_channel_io_normal:
2732 return PCI_ERS_RESULT_CAN_RECOVER;
2733 case pci_channel_io_frozen:
2734 pci_disable_device(pdev);
2735 return PCI_ERS_RESULT_NEED_RESET;
2736 case pci_channel_io_perm_failure:
2737 qla2x00_remove_one(pdev);
2738 return PCI_ERS_RESULT_DISCONNECT;
2739 }
2740 return PCI_ERS_RESULT_NEED_RESET;
2741 }
2742
2743 static pci_ers_result_t
2744 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2745 {
2746 int risc_paused = 0;
2747 uint32_t stat;
2748 unsigned long flags;
2749 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2750 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2751 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2752
2753 spin_lock_irqsave(&ha->hardware_lock, flags);
2754 if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2755 stat = RD_REG_DWORD(&reg->hccr);
2756 if (stat & HCCR_RISC_PAUSE)
2757 risc_paused = 1;
2758 } else if (IS_QLA23XX(ha)) {
2759 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2760 if (stat & HSR_RISC_PAUSED)
2761 risc_paused = 1;
2762 } else if (IS_FWI2_CAPABLE(ha)) {
2763 stat = RD_REG_DWORD(&reg24->host_status);
2764 if (stat & HSRX_RISC_PAUSED)
2765 risc_paused = 1;
2766 }
2767 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2768
2769 if (risc_paused) {
2770 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2771 "Dumping firmware!\n");
2772 ha->isp_ops->fw_dump(ha, 0);
2773
2774 return PCI_ERS_RESULT_NEED_RESET;
2775 } else
2776 return PCI_ERS_RESULT_RECOVERED;
2777 }
2778
2779 static pci_ers_result_t
2780 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2781 {
2782 pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2783 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2784 int rc;
2785
2786 if (ha->mem_only)
2787 rc = pci_enable_device_mem(pdev);
2788 else
2789 rc = pci_enable_device(pdev);
2790
2791 if (rc) {
2792 qla_printk(KERN_WARNING, ha,
2793 "Can't re-enable PCI device after reset.\n");
2794
2795 return ret;
2796 }
2797 pci_set_master(pdev);
2798
2799 if (ha->isp_ops->pci_config(ha))
2800 return ret;
2801
2802 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2803 if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2804 ret = PCI_ERS_RESULT_RECOVERED;
2805 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2806
2807 return ret;
2808 }
2809
2810 static void
2811 qla2xxx_pci_resume(struct pci_dev *pdev)
2812 {
2813 scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2814 int ret;
2815
2816 ret = qla2x00_wait_for_hba_online(ha);
2817 if (ret != QLA_SUCCESS) {
2818 qla_printk(KERN_ERR, ha,
2819 "the device failed to resume I/O "
2820 "from slot/link_reset");
2821 }
2822 pci_cleanup_aer_uncorrect_error_status(pdev);
2823 }
2824
2825 static struct pci_error_handlers qla2xxx_err_handler = {
2826 .error_detected = qla2xxx_pci_error_detected,
2827 .mmio_enabled = qla2xxx_pci_mmio_enabled,
2828 .slot_reset = qla2xxx_pci_slot_reset,
2829 .resume = qla2xxx_pci_resume,
2830 };
2831
2832 static struct pci_device_id qla2xxx_pci_tbl[] = {
2833 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2834 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2835 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2836 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2837 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2838 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2839 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2840 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2841 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2842 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2843 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2844 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2845 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2846 { 0 },
2847 };
2848 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2849
2850 static struct pci_driver qla2xxx_pci_driver = {
2851 .name = QLA2XXX_DRIVER_NAME,
2852 .driver = {
2853 .owner = THIS_MODULE,
2854 },
2855 .id_table = qla2xxx_pci_tbl,
2856 .probe = qla2x00_probe_one,
2857 .remove = qla2x00_remove_one,
2858 .err_handler = &qla2xxx_err_handler,
2859 };
2860
2861 /**
2862 * qla2x00_module_init - Module initialization.
2863 **/
2864 static int __init
2865 qla2x00_module_init(void)
2866 {
2867 int ret = 0;
2868
2869 /* Allocate cache for SRBs. */
2870 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2871 SLAB_HWCACHE_ALIGN, NULL);
2872 if (srb_cachep == NULL) {
2873 printk(KERN_ERR
2874 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2875 return -ENOMEM;
2876 }
2877
2878 /* Derive version string. */
2879 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2880 if (ql2xextended_error_logging)
2881 strcat(qla2x00_version_str, "-debug");
2882
2883 qla2xxx_transport_template =
2884 fc_attach_transport(&qla2xxx_transport_functions);
2885 if (!qla2xxx_transport_template) {
2886 kmem_cache_destroy(srb_cachep);
2887 return -ENODEV;
2888 }
2889 qla2xxx_transport_vport_template =
2890 fc_attach_transport(&qla2xxx_transport_vport_functions);
2891 if (!qla2xxx_transport_vport_template) {
2892 kmem_cache_destroy(srb_cachep);
2893 fc_release_transport(qla2xxx_transport_template);
2894 return -ENODEV;
2895 }
2896
2897 printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2898 qla2x00_version_str);
2899 ret = pci_register_driver(&qla2xxx_pci_driver);
2900 if (ret) {
2901 kmem_cache_destroy(srb_cachep);
2902 fc_release_transport(qla2xxx_transport_template);
2903 fc_release_transport(qla2xxx_transport_vport_template);
2904 }
2905 return ret;
2906 }
2907
2908 /**
2909 * qla2x00_module_exit - Module cleanup.
2910 **/
2911 static void __exit
2912 qla2x00_module_exit(void)
2913 {
2914 pci_unregister_driver(&qla2xxx_pci_driver);
2915 qla2x00_release_firmware();
2916 kmem_cache_destroy(srb_cachep);
2917 fc_release_transport(qla2xxx_transport_template);
2918 fc_release_transport(qla2xxx_transport_vport_template);
2919 }
2920
2921 module_init(qla2x00_module_init);
2922 module_exit(qla2x00_module_exit);
2923
2924 MODULE_AUTHOR("QLogic Corporation");
2925 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2926 MODULE_LICENSE("GPL");
2927 MODULE_VERSION(QLA2XXX_VERSION);
2928 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2929 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2930 MODULE_FIRMWARE(FW_FILE_ISP2300);
2931 MODULE_FIRMWARE(FW_FILE_ISP2322);
2932 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2933 MODULE_FIRMWARE(FW_FILE_ISP25XX);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree