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Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
[mirror_ubuntu-zesty-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2 * QLogic Fibre Channel HBA Driver
3 * Copyright (c) 2003-2005 QLogic Corporation
4 *
5 * See LICENSE.qla2xxx for copyright and licensing details.
6 */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20 * Driver version
21 */
22 char qla2x00_version_str[40];
23
24 /*
25 * SRB allocation cache
26 */
27 static struct kmem_cache *srb_cachep;
28
29 /*
30 * Ioctl related information.
31 */
32 int num_hosts;
33 int ql2xlogintimeout = 20;
34 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
35 MODULE_PARM_DESC(ql2xlogintimeout,
36 "Login timeout value in seconds.");
37
38 int qlport_down_retry;
39 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
40 MODULE_PARM_DESC(qlport_down_retry,
41 "Maximum number of command retries to a port that returns "
42 "a PORT-DOWN status.");
43
44 int ql2xplogiabsentdevice;
45 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
46 MODULE_PARM_DESC(ql2xplogiabsentdevice,
47 "Option to enable PLOGI to devices that are not present after "
48 "a Fabric scan. This is needed for several broken switches. "
49 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
50
51 int ql2xloginretrycount = 0;
52 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
53 MODULE_PARM_DESC(ql2xloginretrycount,
54 "Specify an alternate value for the NVRAM login retry count.");
55
56 int ql2xallocfwdump = 1;
57 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
58 MODULE_PARM_DESC(ql2xallocfwdump,
59 "Option to enable allocation of memory for a firmware dump "
60 "during HBA initialization. Memory allocation requirements "
61 "vary by ISP type. Default is 1 - allocate memory.");
62
63 int ql2xextended_error_logging;
64 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
65 MODULE_PARM_DESC(ql2xextended_error_logging,
66 "Option to enable extended error logging, "
67 "Default is 0 - no logging. 1 - log errors.");
68
69 static void qla2x00_free_device(scsi_qla_host_t *);
70
71 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
72
73 int ql2xfdmienable;
74 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
75 MODULE_PARM_DESC(ql2xfdmienable,
76 "Enables FDMI registratons "
77 "Default is 0 - no FDMI. 1 - perfom FDMI.");
78
79 #define MAX_Q_DEPTH 32
80 static int ql2xmaxqdepth = MAX_Q_DEPTH;
81 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
82 MODULE_PARM_DESC(ql2xmaxqdepth,
83 "Maximum queue depth to report for target devices.");
84
85 int ql2xqfullrampup = 120;
86 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
87 MODULE_PARM_DESC(ql2xqfullrampup,
88 "Number of seconds to wait to begin to ramp-up the queue "
89 "depth for a device after a queue-full condition has been "
90 "detected. Default is 120 seconds.");
91
92 /*
93 * SCSI host template entry points
94 */
95 static int qla2xxx_slave_configure(struct scsi_device * device);
96 static int qla2xxx_slave_alloc(struct scsi_device *);
97 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
98 static void qla2xxx_scan_start(struct Scsi_Host *);
99 static void qla2xxx_slave_destroy(struct scsi_device *);
100 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
101 void (*fn)(struct scsi_cmnd *));
102 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
103 void (*fn)(struct scsi_cmnd *));
104 static int qla2xxx_eh_abort(struct scsi_cmnd *);
105 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
106 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
108 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
109 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
110
111 static int qla2x00_change_queue_depth(struct scsi_device *, int);
112 static int qla2x00_change_queue_type(struct scsi_device *, int);
113
114 struct scsi_host_template qla2x00_driver_template = {
115 .module = THIS_MODULE,
116 .name = QLA2XXX_DRIVER_NAME,
117 .queuecommand = qla2x00_queuecommand,
118
119 .eh_abort_handler = qla2xxx_eh_abort,
120 .eh_device_reset_handler = qla2xxx_eh_device_reset,
121 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
122 .eh_host_reset_handler = qla2xxx_eh_host_reset,
123
124 .slave_configure = qla2xxx_slave_configure,
125
126 .slave_alloc = qla2xxx_slave_alloc,
127 .slave_destroy = qla2xxx_slave_destroy,
128 .scan_finished = qla2xxx_scan_finished,
129 .scan_start = qla2xxx_scan_start,
130 .change_queue_depth = qla2x00_change_queue_depth,
131 .change_queue_type = qla2x00_change_queue_type,
132 .this_id = -1,
133 .cmd_per_lun = 3,
134 .use_clustering = ENABLE_CLUSTERING,
135 .sg_tablesize = SG_ALL,
136
137 /*
138 * The RISC allows for each command to transfer (2^32-1) bytes of data,
139 * which equates to 0x800000 sectors.
140 */
141 .max_sectors = 0xFFFF,
142 .shost_attrs = qla2x00_host_attrs,
143 };
144
145 struct scsi_host_template qla24xx_driver_template = {
146 .module = THIS_MODULE,
147 .name = QLA2XXX_DRIVER_NAME,
148 .queuecommand = qla24xx_queuecommand,
149
150 .eh_abort_handler = qla2xxx_eh_abort,
151 .eh_device_reset_handler = qla2xxx_eh_device_reset,
152 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
153 .eh_host_reset_handler = qla2xxx_eh_host_reset,
154
155 .slave_configure = qla2xxx_slave_configure,
156
157 .slave_alloc = qla2xxx_slave_alloc,
158 .slave_destroy = qla2xxx_slave_destroy,
159 .scan_finished = qla2xxx_scan_finished,
160 .scan_start = qla2xxx_scan_start,
161 .change_queue_depth = qla2x00_change_queue_depth,
162 .change_queue_type = qla2x00_change_queue_type,
163 .this_id = -1,
164 .cmd_per_lun = 3,
165 .use_clustering = ENABLE_CLUSTERING,
166 .sg_tablesize = SG_ALL,
167
168 .max_sectors = 0xFFFF,
169 .shost_attrs = qla2x00_host_attrs,
170 };
171
172 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
173 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
174
175 /* TODO Convert to inlines
176 *
177 * Timer routines
178 */
179
180 void qla2x00_timer(scsi_qla_host_t *);
181
182 __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
183 void *, unsigned long);
184 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
185 __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
186
187 __inline__ void
188 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
189 {
190 init_timer(&ha->timer);
191 ha->timer.expires = jiffies + interval * HZ;
192 ha->timer.data = (unsigned long)ha;
193 ha->timer.function = (void (*)(unsigned long))func;
194 add_timer(&ha->timer);
195 ha->timer_active = 1;
196 }
197
198 static inline void
199 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
200 {
201 mod_timer(&ha->timer, jiffies + interval * HZ);
202 }
203
204 __inline__ void
205 qla2x00_stop_timer(scsi_qla_host_t *ha)
206 {
207 del_timer_sync(&ha->timer);
208 ha->timer_active = 0;
209 }
210
211 static int qla2x00_do_dpc(void *data);
212
213 static void qla2x00_rst_aen(scsi_qla_host_t *);
214
215 uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
216 void qla2x00_mem_free(scsi_qla_host_t *ha);
217 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
218 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
219 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
220 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
221
222 /* -------------------------------------------------------------------------- */
223
224 static char *
225 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
226 {
227 static char *pci_bus_modes[] = {
228 "33", "66", "100", "133",
229 };
230 uint16_t pci_bus;
231
232 strcpy(str, "PCI");
233 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
234 if (pci_bus) {
235 strcat(str, "-X (");
236 strcat(str, pci_bus_modes[pci_bus]);
237 } else {
238 pci_bus = (ha->pci_attr & BIT_8) >> 8;
239 strcat(str, " (");
240 strcat(str, pci_bus_modes[pci_bus]);
241 }
242 strcat(str, " MHz)");
243
244 return (str);
245 }
246
247 static char *
248 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
249 {
250 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
251 uint32_t pci_bus;
252 int pcie_reg;
253
254 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
255 if (pcie_reg) {
256 char lwstr[6];
257 uint16_t pcie_lstat, lspeed, lwidth;
258
259 pcie_reg += 0x12;
260 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
261 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
262 lwidth = (pcie_lstat &
263 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
264
265 strcpy(str, "PCIe (");
266 if (lspeed == 1)
267 strcat(str, "2.5Gb/s ");
268 else if (lspeed == 2)
269 strcat(str, "5.0Gb/s ");
270 else
271 strcat(str, "<unknown> ");
272 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
273 strcat(str, lwstr);
274
275 return str;
276 }
277
278 strcpy(str, "PCI");
279 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
280 if (pci_bus == 0 || pci_bus == 8) {
281 strcat(str, " (");
282 strcat(str, pci_bus_modes[pci_bus >> 3]);
283 } else {
284 strcat(str, "-X ");
285 if (pci_bus & BIT_2)
286 strcat(str, "Mode 2");
287 else
288 strcat(str, "Mode 1");
289 strcat(str, " (");
290 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
291 }
292 strcat(str, " MHz)");
293
294 return str;
295 }
296
297 static char *
298 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
299 {
300 char un_str[10];
301
302 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
303 ha->fw_minor_version,
304 ha->fw_subminor_version);
305
306 if (ha->fw_attributes & BIT_9) {
307 strcat(str, "FLX");
308 return (str);
309 }
310
311 switch (ha->fw_attributes & 0xFF) {
312 case 0x7:
313 strcat(str, "EF");
314 break;
315 case 0x17:
316 strcat(str, "TP");
317 break;
318 case 0x37:
319 strcat(str, "IP");
320 break;
321 case 0x77:
322 strcat(str, "VI");
323 break;
324 default:
325 sprintf(un_str, "(%x)", ha->fw_attributes);
326 strcat(str, un_str);
327 break;
328 }
329 if (ha->fw_attributes & 0x100)
330 strcat(str, "X");
331
332 return (str);
333 }
334
335 static char *
336 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
337 {
338 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
339 ha->fw_minor_version,
340 ha->fw_subminor_version);
341
342 if (ha->fw_attributes & BIT_0)
343 strcat(str, "[Class 2] ");
344 if (ha->fw_attributes & BIT_1)
345 strcat(str, "[IP] ");
346 if (ha->fw_attributes & BIT_2)
347 strcat(str, "[Multi-ID] ");
348 if (ha->fw_attributes & BIT_3)
349 strcat(str, "[SB-2] ");
350 if (ha->fw_attributes & BIT_4)
351 strcat(str, "[T10 CRC] ");
352 if (ha->fw_attributes & BIT_5)
353 strcat(str, "[VI] ");
354 if (ha->fw_attributes & BIT_13)
355 strcat(str, "[Experimental]");
356 return str;
357 }
358
359 static inline srb_t *
360 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
361 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
362 {
363 srb_t *sp;
364
365 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
366 if (!sp)
367 return sp;
368
369 sp->ha = ha;
370 sp->fcport = fcport;
371 sp->cmd = cmd;
372 sp->flags = 0;
373 CMD_SP(cmd) = (void *)sp;
374 cmd->scsi_done = done;
375
376 return sp;
377 }
378
379 static int
380 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
381 {
382 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
383 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
384 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
385 srb_t *sp;
386 int rval;
387
388 rval = fc_remote_port_chkready(rport);
389 if (rval) {
390 cmd->result = rval;
391 goto qc_fail_command;
392 }
393
394 /* Close window on fcport/rport state-transitioning. */
395 if (!*(fc_port_t **)rport->dd_data) {
396 cmd->result = DID_IMM_RETRY << 16;
397 goto qc_fail_command;
398 }
399
400 if (atomic_read(&fcport->state) != FCS_ONLINE) {
401 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
402 atomic_read(&ha->loop_state) == LOOP_DEAD) {
403 cmd->result = DID_NO_CONNECT << 16;
404 goto qc_fail_command;
405 }
406 goto qc_host_busy;
407 }
408
409 spin_unlock_irq(ha->host->host_lock);
410
411 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
412 if (!sp)
413 goto qc_host_busy_lock;
414
415 rval = qla2x00_start_scsi(sp);
416 if (rval != QLA_SUCCESS)
417 goto qc_host_busy_free_sp;
418
419 spin_lock_irq(ha->host->host_lock);
420
421 return 0;
422
423 qc_host_busy_free_sp:
424 qla2x00_sp_free_dma(ha, sp);
425 mempool_free(sp, ha->srb_mempool);
426
427 qc_host_busy_lock:
428 spin_lock_irq(ha->host->host_lock);
429
430 qc_host_busy:
431 return SCSI_MLQUEUE_HOST_BUSY;
432
433 qc_fail_command:
434 done(cmd);
435
436 return 0;
437 }
438
439
440 static int
441 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
442 {
443 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
444 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
445 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
446 srb_t *sp;
447 int rval;
448 scsi_qla_host_t *pha = to_qla_parent(ha);
449
450 rval = fc_remote_port_chkready(rport);
451 if (rval) {
452 cmd->result = rval;
453 goto qc24_fail_command;
454 }
455
456 /* Close window on fcport/rport state-transitioning. */
457 if (!*(fc_port_t **)rport->dd_data) {
458 cmd->result = DID_IMM_RETRY << 16;
459 goto qc24_fail_command;
460 }
461
462 if (atomic_read(&fcport->state) != FCS_ONLINE) {
463 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
464 atomic_read(&pha->loop_state) == LOOP_DEAD) {
465 cmd->result = DID_NO_CONNECT << 16;
466 goto qc24_fail_command;
467 }
468 goto qc24_host_busy;
469 }
470
471 spin_unlock_irq(ha->host->host_lock);
472
473 sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
474 if (!sp)
475 goto qc24_host_busy_lock;
476
477 rval = qla24xx_start_scsi(sp);
478 if (rval != QLA_SUCCESS)
479 goto qc24_host_busy_free_sp;
480
481 spin_lock_irq(ha->host->host_lock);
482
483 return 0;
484
485 qc24_host_busy_free_sp:
486 qla2x00_sp_free_dma(pha, sp);
487 mempool_free(sp, pha->srb_mempool);
488
489 qc24_host_busy_lock:
490 spin_lock_irq(ha->host->host_lock);
491
492 qc24_host_busy:
493 return SCSI_MLQUEUE_HOST_BUSY;
494
495 qc24_fail_command:
496 done(cmd);
497
498 return 0;
499 }
500
501
502 /*
503 * qla2x00_eh_wait_on_command
504 * Waits for the command to be returned by the Firmware for some
505 * max time.
506 *
507 * Input:
508 * ha = actual ha whose done queue will contain the command
509 * returned by firmware.
510 * cmd = Scsi Command to wait on.
511 * flag = Abort/Reset(Bus or Device Reset)
512 *
513 * Return:
514 * Not Found : 0
515 * Found : 1
516 */
517 static int
518 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
519 {
520 #define ABORT_POLLING_PERIOD 1000
521 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
522 unsigned long wait_iter = ABORT_WAIT_ITER;
523 int ret = QLA_SUCCESS;
524
525 while (CMD_SP(cmd)) {
526 msleep(ABORT_POLLING_PERIOD);
527
528 if (--wait_iter)
529 break;
530 }
531 if (CMD_SP(cmd))
532 ret = QLA_FUNCTION_FAILED;
533
534 return ret;
535 }
536
537 /*
538 * qla2x00_wait_for_hba_online
539 * Wait till the HBA is online after going through
540 * <= MAX_RETRIES_OF_ISP_ABORT or
541 * finally HBA is disabled ie marked offline
542 *
543 * Input:
544 * ha - pointer to host adapter structure
545 *
546 * Note:
547 * Does context switching-Release SPIN_LOCK
548 * (if any) before calling this routine.
549 *
550 * Return:
551 * Success (Adapter is online) : 0
552 * Failed (Adapter is offline/disabled) : 1
553 */
554 int
555 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
556 {
557 int return_status;
558 unsigned long wait_online;
559 scsi_qla_host_t *pha = to_qla_parent(ha);
560
561 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
562 while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
563 test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
564 test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
565 pha->dpc_active) && time_before(jiffies, wait_online)) {
566
567 msleep(1000);
568 }
569 if (pha->flags.online)
570 return_status = QLA_SUCCESS;
571 else
572 return_status = QLA_FUNCTION_FAILED;
573
574 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
575
576 return (return_status);
577 }
578
579 /*
580 * qla2x00_wait_for_loop_ready
581 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
582 * to be in LOOP_READY state.
583 * Input:
584 * ha - pointer to host adapter structure
585 *
586 * Note:
587 * Does context switching-Release SPIN_LOCK
588 * (if any) before calling this routine.
589 *
590 *
591 * Return:
592 * Success (LOOP_READY) : 0
593 * Failed (LOOP_NOT_READY) : 1
594 */
595 static inline int
596 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
597 {
598 int return_status = QLA_SUCCESS;
599 unsigned long loop_timeout ;
600 scsi_qla_host_t *pha = to_qla_parent(ha);
601
602 /* wait for 5 min at the max for loop to be ready */
603 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
604
605 while ((!atomic_read(&pha->loop_down_timer) &&
606 atomic_read(&pha->loop_state) == LOOP_DOWN) ||
607 atomic_read(&pha->loop_state) != LOOP_READY) {
608 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
609 return_status = QLA_FUNCTION_FAILED;
610 break;
611 }
612 msleep(1000);
613 if (time_after_eq(jiffies, loop_timeout)) {
614 return_status = QLA_FUNCTION_FAILED;
615 break;
616 }
617 }
618 return (return_status);
619 }
620
621 static void
622 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
623 {
624 struct Scsi_Host *shost = cmnd->device->host;
625 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
626 unsigned long flags;
627
628 spin_lock_irqsave(shost->host_lock, flags);
629 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
630 spin_unlock_irqrestore(shost->host_lock, flags);
631 msleep(1000);
632 spin_lock_irqsave(shost->host_lock, flags);
633 }
634 spin_unlock_irqrestore(shost->host_lock, flags);
635 return;
636 }
637
638 /**************************************************************************
639 * qla2xxx_eh_abort
640 *
641 * Description:
642 * The abort function will abort the specified command.
643 *
644 * Input:
645 * cmd = Linux SCSI command packet to be aborted.
646 *
647 * Returns:
648 * Either SUCCESS or FAILED.
649 *
650 * Note:
651 * Only return FAILED if command not returned by firmware.
652 **************************************************************************/
653 static int
654 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
655 {
656 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
657 srb_t *sp;
658 int ret, i;
659 unsigned int id, lun;
660 unsigned long serial;
661 unsigned long flags;
662 int wait = 0;
663 scsi_qla_host_t *pha = to_qla_parent(ha);
664
665 qla2x00_block_error_handler(cmd);
666
667 if (!CMD_SP(cmd))
668 return SUCCESS;
669
670 ret = SUCCESS;
671
672 id = cmd->device->id;
673 lun = cmd->device->lun;
674 serial = cmd->serial_number;
675
676 /* Check active list for command command. */
677 spin_lock_irqsave(&pha->hardware_lock, flags);
678 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
679 sp = pha->outstanding_cmds[i];
680
681 if (sp == NULL)
682 continue;
683
684 if (sp->cmd != cmd)
685 continue;
686
687 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
688 __func__, ha->host_no, sp, serial));
689 DEBUG3(qla2x00_print_scsi_cmd(cmd));
690
691 spin_unlock_irqrestore(&pha->hardware_lock, flags);
692 if (ha->isp_ops->abort_command(ha, sp)) {
693 DEBUG2(printk("%s(%ld): abort_command "
694 "mbx failed.\n", __func__, ha->host_no));
695 } else {
696 DEBUG3(printk("%s(%ld): abort_command "
697 "mbx success.\n", __func__, ha->host_no));
698 wait = 1;
699 }
700 spin_lock_irqsave(&pha->hardware_lock, flags);
701
702 break;
703 }
704 spin_unlock_irqrestore(&pha->hardware_lock, flags);
705
706 /* Wait for the command to be returned. */
707 if (wait) {
708 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
709 qla_printk(KERN_ERR, ha,
710 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
711 "%x.\n", ha->host_no, id, lun, serial, ret);
712 ret = FAILED;
713 }
714 }
715
716 qla_printk(KERN_INFO, ha,
717 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
718 ha->host_no, id, lun, wait, serial, ret);
719
720 return ret;
721 }
722
723 /**************************************************************************
724 * qla2x00_eh_wait_for_pending_target_commands
725 *
726 * Description:
727 * Waits for all the commands to come back from the specified target.
728 *
729 * Input:
730 * ha - pointer to scsi_qla_host structure.
731 * t - target
732 * Returns:
733 * Either SUCCESS or FAILED.
734 *
735 * Note:
736 **************************************************************************/
737 static int
738 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
739 {
740 int cnt;
741 int status;
742 srb_t *sp;
743 struct scsi_cmnd *cmd;
744 unsigned long flags;
745 scsi_qla_host_t *pha = to_qla_parent(ha);
746
747 status = 0;
748
749 /*
750 * Waiting for all commands for the designated target in the active
751 * array
752 */
753 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
754 spin_lock_irqsave(&pha->hardware_lock, flags);
755 sp = pha->outstanding_cmds[cnt];
756 if (sp) {
757 cmd = sp->cmd;
758 spin_unlock_irqrestore(&pha->hardware_lock, flags);
759 if (cmd->device->id == t &&
760 ha->vp_idx == sp->ha->vp_idx) {
761 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
762 status = 1;
763 break;
764 }
765 }
766 } else {
767 spin_unlock_irqrestore(&pha->hardware_lock, flags);
768 }
769 }
770 return (status);
771 }
772
773
774 /**************************************************************************
775 * qla2xxx_eh_device_reset
776 *
777 * Description:
778 * The device reset function will reset the target and abort any
779 * executing commands.
780 *
781 * NOTE: The use of SP is undefined within this context. Do *NOT*
782 * attempt to use this value, even if you determine it is
783 * non-null.
784 *
785 * Input:
786 * cmd = Linux SCSI command packet of the command that cause the
787 * bus device reset.
788 *
789 * Returns:
790 * SUCCESS/FAILURE (defined as macro in scsi.h).
791 *
792 **************************************************************************/
793 static int
794 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
795 {
796 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
797 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
798 int ret = FAILED;
799 unsigned int id, lun;
800 unsigned long serial;
801
802 qla2x00_block_error_handler(cmd);
803
804 id = cmd->device->id;
805 lun = cmd->device->lun;
806 serial = cmd->serial_number;
807
808 if (!fcport)
809 return ret;
810
811 qla_printk(KERN_INFO, ha,
812 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
813
814 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
815 goto eh_dev_reset_done;
816
817 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
818 if (qla2x00_device_reset(ha, fcport) == 0)
819 ret = SUCCESS;
820
821 #if defined(LOGOUT_AFTER_DEVICE_RESET)
822 if (ret == SUCCESS) {
823 if (fcport->flags & FC_FABRIC_DEVICE) {
824 ha->isp_ops->fabric_logout(ha, fcport->loop_id);
825 qla2x00_mark_device_lost(ha, fcport, 0, 0);
826 }
827 }
828 #endif
829 } else {
830 DEBUG2(printk(KERN_INFO
831 "%s failed: loop not ready\n",__func__));
832 }
833
834 if (ret == FAILED) {
835 DEBUG3(printk("%s(%ld): device reset failed\n",
836 __func__, ha->host_no));
837 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
838 __func__);
839
840 goto eh_dev_reset_done;
841 }
842
843 /* Flush outstanding commands. */
844 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
845 ret = FAILED;
846 if (ret == FAILED) {
847 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
848 __func__, ha->host_no));
849 qla_printk(KERN_INFO, ha,
850 "%s: failed while waiting for commands\n", __func__);
851 } else
852 qla_printk(KERN_INFO, ha,
853 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
854 id, lun);
855 eh_dev_reset_done:
856 return ret;
857 }
858
859 /**************************************************************************
860 * qla2x00_eh_wait_for_pending_commands
861 *
862 * Description:
863 * Waits for all the commands to come back from the specified host.
864 *
865 * Input:
866 * ha - pointer to scsi_qla_host structure.
867 *
868 * Returns:
869 * 1 : SUCCESS
870 * 0 : FAILED
871 *
872 * Note:
873 **************************************************************************/
874 static int
875 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
876 {
877 int cnt;
878 int status;
879 srb_t *sp;
880 struct scsi_cmnd *cmd;
881 unsigned long flags;
882
883 status = 1;
884
885 /*
886 * Waiting for all commands for the designated target in the active
887 * array
888 */
889 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
890 spin_lock_irqsave(&ha->hardware_lock, flags);
891 sp = ha->outstanding_cmds[cnt];
892 if (sp) {
893 cmd = sp->cmd;
894 spin_unlock_irqrestore(&ha->hardware_lock, flags);
895 status = qla2x00_eh_wait_on_command(ha, cmd);
896 if (status == 0)
897 break;
898 }
899 else {
900 spin_unlock_irqrestore(&ha->hardware_lock, flags);
901 }
902 }
903 return (status);
904 }
905
906
907 /**************************************************************************
908 * qla2xxx_eh_bus_reset
909 *
910 * Description:
911 * The bus reset function will reset the bus and abort any executing
912 * commands.
913 *
914 * Input:
915 * cmd = Linux SCSI command packet of the command that cause the
916 * bus reset.
917 *
918 * Returns:
919 * SUCCESS/FAILURE (defined as macro in scsi.h).
920 *
921 **************************************************************************/
922 static int
923 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
924 {
925 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
926 scsi_qla_host_t *pha = to_qla_parent(ha);
927 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
928 int ret = FAILED;
929 unsigned int id, lun;
930 unsigned long serial;
931
932 qla2x00_block_error_handler(cmd);
933
934 id = cmd->device->id;
935 lun = cmd->device->lun;
936 serial = cmd->serial_number;
937
938 if (!fcport)
939 return ret;
940
941 qla_printk(KERN_INFO, ha,
942 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
943
944 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
945 DEBUG2(printk("%s failed:board disabled\n",__func__));
946 goto eh_bus_reset_done;
947 }
948
949 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
950 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
951 ret = SUCCESS;
952 }
953 if (ret == FAILED)
954 goto eh_bus_reset_done;
955
956 /* Flush outstanding commands. */
957 if (!qla2x00_eh_wait_for_pending_commands(pha))
958 ret = FAILED;
959
960 eh_bus_reset_done:
961 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
962 (ret == FAILED) ? "failed" : "succeded");
963
964 return ret;
965 }
966
967 /**************************************************************************
968 * qla2xxx_eh_host_reset
969 *
970 * Description:
971 * The reset function will reset the Adapter.
972 *
973 * Input:
974 * cmd = Linux SCSI command packet of the command that cause the
975 * adapter reset.
976 *
977 * Returns:
978 * Either SUCCESS or FAILED.
979 *
980 * Note:
981 **************************************************************************/
982 static int
983 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
984 {
985 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
986 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
987 int ret = FAILED;
988 unsigned int id, lun;
989 unsigned long serial;
990 scsi_qla_host_t *pha = to_qla_parent(ha);
991
992 qla2x00_block_error_handler(cmd);
993
994 id = cmd->device->id;
995 lun = cmd->device->lun;
996 serial = cmd->serial_number;
997
998 if (!fcport)
999 return ret;
1000
1001 qla_printk(KERN_INFO, ha,
1002 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
1003
1004 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1005 goto eh_host_reset_lock;
1006
1007 /*
1008 * Fixme-may be dpc thread is active and processing
1009 * loop_resync,so wait a while for it to
1010 * be completed and then issue big hammer.Otherwise
1011 * it may cause I/O failure as big hammer marks the
1012 * devices as lost kicking of the port_down_timer
1013 * while dpc is stuck for the mailbox to complete.
1014 */
1015 qla2x00_wait_for_loop_ready(ha);
1016 set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1017 if (qla2x00_abort_isp(pha)) {
1018 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1019 /* failed. schedule dpc to try */
1020 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
1021
1022 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1023 goto eh_host_reset_lock;
1024 }
1025 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
1026
1027 /* Waiting for our command in done_queue to be returned to OS.*/
1028 if (qla2x00_eh_wait_for_pending_commands(pha))
1029 ret = SUCCESS;
1030
1031 if (ha->parent)
1032 qla2x00_vp_abort_isp(ha);
1033
1034 eh_host_reset_lock:
1035 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1036 (ret == FAILED) ? "failed" : "succeded");
1037
1038 return ret;
1039 }
1040
1041 /*
1042 * qla2x00_loop_reset
1043 * Issue loop reset.
1044 *
1045 * Input:
1046 * ha = adapter block pointer.
1047 *
1048 * Returns:
1049 * 0 = success
1050 */
1051 static int
1052 qla2x00_loop_reset(scsi_qla_host_t *ha)
1053 {
1054 int ret;
1055 struct fc_port *fcport;
1056
1057 if (ha->flags.enable_lip_full_login) {
1058 ret = qla2x00_full_login_lip(ha);
1059 if (ret != QLA_SUCCESS) {
1060 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1061 "full_login_lip=%d.\n", __func__, ha->host_no,
1062 ret));
1063 }
1064 atomic_set(&ha->loop_state, LOOP_DOWN);
1065 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1066 qla2x00_mark_all_devices_lost(ha, 0);
1067 qla2x00_wait_for_loop_ready(ha);
1068 }
1069
1070 if (ha->flags.enable_lip_reset) {
1071 ret = qla2x00_lip_reset(ha);
1072 if (ret != QLA_SUCCESS) {
1073 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1074 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1075 }
1076 qla2x00_wait_for_loop_ready(ha);
1077 }
1078
1079 if (ha->flags.enable_target_reset) {
1080 list_for_each_entry(fcport, &ha->fcports, list) {
1081 if (fcport->port_type != FCT_TARGET)
1082 continue;
1083
1084 ret = qla2x00_device_reset(ha, fcport);
1085 if (ret != QLA_SUCCESS) {
1086 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1087 "target_reset=%d d_id=%x.\n", __func__,
1088 ha->host_no, ret, fcport->d_id.b24));
1089 }
1090 }
1091 }
1092
1093 /* Issue marker command only when we are going to start the I/O */
1094 ha->marker_needed = 1;
1095
1096 return QLA_SUCCESS;
1097 }
1098
1099 /*
1100 * qla2x00_device_reset
1101 * Issue bus device reset message to the target.
1102 *
1103 * Input:
1104 * ha = adapter block pointer.
1105 * t = SCSI ID.
1106 * TARGET_QUEUE_LOCK must be released.
1107 * ADAPTER_STATE_LOCK must be released.
1108 *
1109 * Context:
1110 * Kernel context.
1111 */
1112 static int
1113 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1114 {
1115 /* Abort Target command will clear Reservation */
1116 return ha->isp_ops->abort_target(reset_fcport);
1117 }
1118
1119 static int
1120 qla2xxx_slave_alloc(struct scsi_device *sdev)
1121 {
1122 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1123
1124 if (!rport || fc_remote_port_chkready(rport))
1125 return -ENXIO;
1126
1127 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1128
1129 return 0;
1130 }
1131
1132 static int
1133 qla2xxx_slave_configure(struct scsi_device *sdev)
1134 {
1135 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1136 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1137
1138 if (sdev->tagged_supported)
1139 scsi_activate_tcq(sdev, ha->max_q_depth);
1140 else
1141 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1142
1143 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1144
1145 return 0;
1146 }
1147
1148 static void
1149 qla2xxx_slave_destroy(struct scsi_device *sdev)
1150 {
1151 sdev->hostdata = NULL;
1152 }
1153
1154 static int
1155 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1156 {
1157 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1158 return sdev->queue_depth;
1159 }
1160
1161 static int
1162 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1163 {
1164 if (sdev->tagged_supported) {
1165 scsi_set_tag_type(sdev, tag_type);
1166 if (tag_type)
1167 scsi_activate_tcq(sdev, sdev->queue_depth);
1168 else
1169 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1170 } else
1171 tag_type = 0;
1172
1173 return tag_type;
1174 }
1175
1176 /**
1177 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1178 * @ha: HA context
1179 *
1180 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1181 * supported addressing method.
1182 */
1183 static void
1184 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1185 {
1186 /* Assume a 32bit DMA mask. */
1187 ha->flags.enable_64bit_addressing = 0;
1188
1189 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1190 /* Any upper-dword bits set? */
1191 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1192 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1193 /* Ok, a 64bit DMA mask is applicable. */
1194 ha->flags.enable_64bit_addressing = 1;
1195 ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1196 ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1197 return;
1198 }
1199 }
1200
1201 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1202 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1203 }
1204
1205 static void
1206 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1207 {
1208 unsigned long flags = 0;
1209 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1210
1211 spin_lock_irqsave(&ha->hardware_lock, flags);
1212 ha->interrupts_on = 1;
1213 /* enable risc and host interrupts */
1214 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1215 RD_REG_WORD(&reg->ictrl);
1216 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1217
1218 }
1219
1220 static void
1221 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1222 {
1223 unsigned long flags = 0;
1224 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1225
1226 spin_lock_irqsave(&ha->hardware_lock, flags);
1227 ha->interrupts_on = 0;
1228 /* disable risc and host interrupts */
1229 WRT_REG_WORD(&reg->ictrl, 0);
1230 RD_REG_WORD(&reg->ictrl);
1231 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1232 }
1233
1234 static void
1235 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1236 {
1237 unsigned long flags = 0;
1238 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1239
1240 spin_lock_irqsave(&ha->hardware_lock, flags);
1241 ha->interrupts_on = 1;
1242 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1243 RD_REG_DWORD(&reg->ictrl);
1244 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1245 }
1246
1247 static void
1248 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1249 {
1250 unsigned long flags = 0;
1251 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1252
1253 spin_lock_irqsave(&ha->hardware_lock, flags);
1254 ha->interrupts_on = 0;
1255 WRT_REG_DWORD(&reg->ictrl, 0);
1256 RD_REG_DWORD(&reg->ictrl);
1257 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1258 }
1259
1260 static struct isp_operations qla2100_isp_ops = {
1261 .pci_config = qla2100_pci_config,
1262 .reset_chip = qla2x00_reset_chip,
1263 .chip_diag = qla2x00_chip_diag,
1264 .config_rings = qla2x00_config_rings,
1265 .reset_adapter = qla2x00_reset_adapter,
1266 .nvram_config = qla2x00_nvram_config,
1267 .update_fw_options = qla2x00_update_fw_options,
1268 .load_risc = qla2x00_load_risc,
1269 .pci_info_str = qla2x00_pci_info_str,
1270 .fw_version_str = qla2x00_fw_version_str,
1271 .intr_handler = qla2100_intr_handler,
1272 .enable_intrs = qla2x00_enable_intrs,
1273 .disable_intrs = qla2x00_disable_intrs,
1274 .abort_command = qla2x00_abort_command,
1275 .abort_target = qla2x00_abort_target,
1276 .fabric_login = qla2x00_login_fabric,
1277 .fabric_logout = qla2x00_fabric_logout,
1278 .calc_req_entries = qla2x00_calc_iocbs_32,
1279 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1280 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1281 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1282 .read_nvram = qla2x00_read_nvram_data,
1283 .write_nvram = qla2x00_write_nvram_data,
1284 .fw_dump = qla2100_fw_dump,
1285 .beacon_on = NULL,
1286 .beacon_off = NULL,
1287 .beacon_blink = NULL,
1288 .read_optrom = qla2x00_read_optrom_data,
1289 .write_optrom = qla2x00_write_optrom_data,
1290 .get_flash_version = qla2x00_get_flash_version,
1291 };
1292
1293 static struct isp_operations qla2300_isp_ops = {
1294 .pci_config = qla2300_pci_config,
1295 .reset_chip = qla2x00_reset_chip,
1296 .chip_diag = qla2x00_chip_diag,
1297 .config_rings = qla2x00_config_rings,
1298 .reset_adapter = qla2x00_reset_adapter,
1299 .nvram_config = qla2x00_nvram_config,
1300 .update_fw_options = qla2x00_update_fw_options,
1301 .load_risc = qla2x00_load_risc,
1302 .pci_info_str = qla2x00_pci_info_str,
1303 .fw_version_str = qla2x00_fw_version_str,
1304 .intr_handler = qla2300_intr_handler,
1305 .enable_intrs = qla2x00_enable_intrs,
1306 .disable_intrs = qla2x00_disable_intrs,
1307 .abort_command = qla2x00_abort_command,
1308 .abort_target = qla2x00_abort_target,
1309 .fabric_login = qla2x00_login_fabric,
1310 .fabric_logout = qla2x00_fabric_logout,
1311 .calc_req_entries = qla2x00_calc_iocbs_32,
1312 .build_iocbs = qla2x00_build_scsi_iocbs_32,
1313 .prep_ms_iocb = qla2x00_prep_ms_iocb,
1314 .prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb,
1315 .read_nvram = qla2x00_read_nvram_data,
1316 .write_nvram = qla2x00_write_nvram_data,
1317 .fw_dump = qla2300_fw_dump,
1318 .beacon_on = qla2x00_beacon_on,
1319 .beacon_off = qla2x00_beacon_off,
1320 .beacon_blink = qla2x00_beacon_blink,
1321 .read_optrom = qla2x00_read_optrom_data,
1322 .write_optrom = qla2x00_write_optrom_data,
1323 .get_flash_version = qla2x00_get_flash_version,
1324 };
1325
1326 static struct isp_operations qla24xx_isp_ops = {
1327 .pci_config = qla24xx_pci_config,
1328 .reset_chip = qla24xx_reset_chip,
1329 .chip_diag = qla24xx_chip_diag,
1330 .config_rings = qla24xx_config_rings,
1331 .reset_adapter = qla24xx_reset_adapter,
1332 .nvram_config = qla24xx_nvram_config,
1333 .update_fw_options = qla24xx_update_fw_options,
1334 .load_risc = qla24xx_load_risc,
1335 .pci_info_str = qla24xx_pci_info_str,
1336 .fw_version_str = qla24xx_fw_version_str,
1337 .intr_handler = qla24xx_intr_handler,
1338 .enable_intrs = qla24xx_enable_intrs,
1339 .disable_intrs = qla24xx_disable_intrs,
1340 .abort_command = qla24xx_abort_command,
1341 .abort_target = qla24xx_abort_target,
1342 .fabric_login = qla24xx_login_fabric,
1343 .fabric_logout = qla24xx_fabric_logout,
1344 .calc_req_entries = NULL,
1345 .build_iocbs = NULL,
1346 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1347 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1348 .read_nvram = qla24xx_read_nvram_data,
1349 .write_nvram = qla24xx_write_nvram_data,
1350 .fw_dump = qla24xx_fw_dump,
1351 .beacon_on = qla24xx_beacon_on,
1352 .beacon_off = qla24xx_beacon_off,
1353 .beacon_blink = qla24xx_beacon_blink,
1354 .read_optrom = qla24xx_read_optrom_data,
1355 .write_optrom = qla24xx_write_optrom_data,
1356 .get_flash_version = qla24xx_get_flash_version,
1357 };
1358
1359 static struct isp_operations qla25xx_isp_ops = {
1360 .pci_config = qla25xx_pci_config,
1361 .reset_chip = qla24xx_reset_chip,
1362 .chip_diag = qla24xx_chip_diag,
1363 .config_rings = qla24xx_config_rings,
1364 .reset_adapter = qla24xx_reset_adapter,
1365 .nvram_config = qla24xx_nvram_config,
1366 .update_fw_options = qla24xx_update_fw_options,
1367 .load_risc = qla24xx_load_risc,
1368 .pci_info_str = qla24xx_pci_info_str,
1369 .fw_version_str = qla24xx_fw_version_str,
1370 .intr_handler = qla24xx_intr_handler,
1371 .enable_intrs = qla24xx_enable_intrs,
1372 .disable_intrs = qla24xx_disable_intrs,
1373 .abort_command = qla24xx_abort_command,
1374 .abort_target = qla24xx_abort_target,
1375 .fabric_login = qla24xx_login_fabric,
1376 .fabric_logout = qla24xx_fabric_logout,
1377 .calc_req_entries = NULL,
1378 .build_iocbs = NULL,
1379 .prep_ms_iocb = qla24xx_prep_ms_iocb,
1380 .prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb,
1381 .read_nvram = qla25xx_read_nvram_data,
1382 .write_nvram = qla25xx_write_nvram_data,
1383 .fw_dump = qla25xx_fw_dump,
1384 .beacon_on = qla24xx_beacon_on,
1385 .beacon_off = qla24xx_beacon_off,
1386 .beacon_blink = qla24xx_beacon_blink,
1387 .read_optrom = qla24xx_read_optrom_data,
1388 .write_optrom = qla24xx_write_optrom_data,
1389 .get_flash_version = qla24xx_get_flash_version,
1390 };
1391
1392 static inline void
1393 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1394 {
1395 ha->device_type = DT_EXTENDED_IDS;
1396 switch (ha->pdev->device) {
1397 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1398 ha->device_type |= DT_ISP2100;
1399 ha->device_type &= ~DT_EXTENDED_IDS;
1400 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1401 break;
1402 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1403 ha->device_type |= DT_ISP2200;
1404 ha->device_type &= ~DT_EXTENDED_IDS;
1405 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1406 break;
1407 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1408 ha->device_type |= DT_ISP2300;
1409 ha->device_type |= DT_ZIO_SUPPORTED;
1410 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1411 break;
1412 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1413 ha->device_type |= DT_ISP2312;
1414 ha->device_type |= DT_ZIO_SUPPORTED;
1415 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1416 break;
1417 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1418 ha->device_type |= DT_ISP2322;
1419 ha->device_type |= DT_ZIO_SUPPORTED;
1420 if (ha->pdev->subsystem_vendor == 0x1028 &&
1421 ha->pdev->subsystem_device == 0x0170)
1422 ha->device_type |= DT_OEM_001;
1423 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1424 break;
1425 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1426 ha->device_type |= DT_ISP6312;
1427 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1428 break;
1429 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1430 ha->device_type |= DT_ISP6322;
1431 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1432 break;
1433 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1434 ha->device_type |= DT_ISP2422;
1435 ha->device_type |= DT_ZIO_SUPPORTED;
1436 ha->device_type |= DT_FWI2;
1437 ha->device_type |= DT_IIDMA;
1438 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1439 break;
1440 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1441 ha->device_type |= DT_ISP2432;
1442 ha->device_type |= DT_ZIO_SUPPORTED;
1443 ha->device_type |= DT_FWI2;
1444 ha->device_type |= DT_IIDMA;
1445 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1446 break;
1447 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1448 ha->device_type |= DT_ISP5422;
1449 ha->device_type |= DT_FWI2;
1450 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1451 break;
1452 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1453 ha->device_type |= DT_ISP5432;
1454 ha->device_type |= DT_FWI2;
1455 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1456 break;
1457 case PCI_DEVICE_ID_QLOGIC_ISP2532:
1458 ha->device_type |= DT_ISP2532;
1459 ha->device_type |= DT_ZIO_SUPPORTED;
1460 ha->device_type |= DT_FWI2;
1461 ha->device_type |= DT_IIDMA;
1462 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1463 break;
1464 }
1465 }
1466
1467 static int
1468 qla2x00_iospace_config(scsi_qla_host_t *ha)
1469 {
1470 unsigned long pio, pio_len, pio_flags;
1471 unsigned long mmio, mmio_len, mmio_flags;
1472
1473 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1474 pio = pci_resource_start(ha->pdev, 0);
1475 pio_len = pci_resource_len(ha->pdev, 0);
1476 pio_flags = pci_resource_flags(ha->pdev, 0);
1477 if (pio_flags & IORESOURCE_IO) {
1478 if (pio_len < MIN_IOBASE_LEN) {
1479 qla_printk(KERN_WARNING, ha,
1480 "Invalid PCI I/O region size (%s)...\n",
1481 pci_name(ha->pdev));
1482 pio = 0;
1483 }
1484 } else {
1485 qla_printk(KERN_WARNING, ha,
1486 "region #0 not a PIO resource (%s)...\n",
1487 pci_name(ha->pdev));
1488 pio = 0;
1489 }
1490
1491 /* Use MMIO operations for all accesses. */
1492 mmio = pci_resource_start(ha->pdev, 1);
1493 mmio_len = pci_resource_len(ha->pdev, 1);
1494 mmio_flags = pci_resource_flags(ha->pdev, 1);
1495
1496 if (!(mmio_flags & IORESOURCE_MEM)) {
1497 qla_printk(KERN_ERR, ha,
1498 "region #0 not an MMIO resource (%s), aborting\n",
1499 pci_name(ha->pdev));
1500 goto iospace_error_exit;
1501 }
1502 if (mmio_len < MIN_IOBASE_LEN) {
1503 qla_printk(KERN_ERR, ha,
1504 "Invalid PCI mem region size (%s), aborting\n",
1505 pci_name(ha->pdev));
1506 goto iospace_error_exit;
1507 }
1508
1509 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1510 qla_printk(KERN_WARNING, ha,
1511 "Failed to reserve PIO/MMIO regions (%s)\n",
1512 pci_name(ha->pdev));
1513
1514 goto iospace_error_exit;
1515 }
1516
1517 ha->pio_address = pio;
1518 ha->pio_length = pio_len;
1519 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1520 if (!ha->iobase) {
1521 qla_printk(KERN_ERR, ha,
1522 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1523
1524 goto iospace_error_exit;
1525 }
1526
1527 return (0);
1528
1529 iospace_error_exit:
1530 return (-ENOMEM);
1531 }
1532
1533 static void
1534 qla2xxx_scan_start(struct Scsi_Host *shost)
1535 {
1536 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1537
1538 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1539 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1540 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1541 }
1542
1543 static int
1544 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1545 {
1546 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1547
1548 if (!ha->host)
1549 return 1;
1550 if (time > ha->loop_reset_delay * HZ)
1551 return 1;
1552
1553 return atomic_read(&ha->loop_state) == LOOP_READY;
1554 }
1555
1556 /*
1557 * PCI driver interface
1558 */
1559 static int __devinit
1560 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1561 {
1562 int ret = -ENODEV;
1563 device_reg_t __iomem *reg;
1564 struct Scsi_Host *host;
1565 scsi_qla_host_t *ha;
1566 unsigned long flags = 0;
1567 char pci_info[20];
1568 char fw_str[30];
1569 struct scsi_host_template *sht;
1570
1571 if (pci_enable_device(pdev))
1572 goto probe_out;
1573
1574 sht = &qla2x00_driver_template;
1575 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1576 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1577 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1578 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1579 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532)
1580 sht = &qla24xx_driver_template;
1581 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1582 if (host == NULL) {
1583 printk(KERN_WARNING
1584 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1585 goto probe_disable_device;
1586 }
1587
1588 /* Clear our data area */
1589 ha = (scsi_qla_host_t *)host->hostdata;
1590 memset(ha, 0, sizeof(scsi_qla_host_t));
1591
1592 ha->pdev = pdev;
1593 ha->host = host;
1594 ha->host_no = host->host_no;
1595 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1596 ha->parent = NULL;
1597
1598 /* Set ISP-type information. */
1599 qla2x00_set_isp_flags(ha);
1600
1601 /* Configure PCI I/O space */
1602 ret = qla2x00_iospace_config(ha);
1603 if (ret)
1604 goto probe_failed;
1605
1606 qla_printk(KERN_INFO, ha,
1607 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1608 ha->iobase);
1609
1610 spin_lock_init(&ha->hardware_lock);
1611
1612 ha->prev_topology = 0;
1613 ha->init_cb_size = sizeof(init_cb_t);
1614 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1615 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1616 ha->optrom_size = OPTROM_SIZE_2300;
1617
1618 ha->max_q_depth = MAX_Q_DEPTH;
1619 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1620 ha->max_q_depth = ql2xmaxqdepth;
1621
1622 /* Assign ISP specific operations. */
1623 if (IS_QLA2100(ha)) {
1624 host->max_id = MAX_TARGETS_2100;
1625 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1626 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1627 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1628 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1629 host->sg_tablesize = 32;
1630 ha->gid_list_info_size = 4;
1631 ha->isp_ops = &qla2100_isp_ops;
1632 } else if (IS_QLA2200(ha)) {
1633 host->max_id = MAX_TARGETS_2200;
1634 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1635 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1636 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1637 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1638 ha->gid_list_info_size = 4;
1639 ha->isp_ops = &qla2100_isp_ops;
1640 } else if (IS_QLA23XX(ha)) {
1641 host->max_id = MAX_TARGETS_2200;
1642 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1643 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1644 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1645 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1646 ha->gid_list_info_size = 6;
1647 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1648 ha->optrom_size = OPTROM_SIZE_2322;
1649 ha->isp_ops = &qla2300_isp_ops;
1650 } else if (IS_QLA24XX(ha) || IS_QLA54XX(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_24XX;
1660 ha->isp_ops = &qla24xx_isp_ops;
1661 } else if (IS_QLA25XX(ha)) {
1662 host->max_id = MAX_TARGETS_2200;
1663 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1664 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1665 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1666 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1667 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1668 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1669 ha->gid_list_info_size = 8;
1670 ha->optrom_size = OPTROM_SIZE_25XX;
1671 ha->isp_ops = &qla25xx_isp_ops;
1672 }
1673 host->can_queue = ha->request_q_length + 128;
1674
1675 /* load the F/W, read paramaters, and init the H/W */
1676 ha->instance = num_hosts;
1677
1678 init_MUTEX(&ha->mbx_cmd_sem);
1679 init_MUTEX(&ha->vport_sem);
1680 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1681
1682 INIT_LIST_HEAD(&ha->list);
1683 INIT_LIST_HEAD(&ha->fcports);
1684 INIT_LIST_HEAD(&ha->vp_list);
1685
1686 set_bit(0, (unsigned long *) ha->vp_idx_map);
1687
1688 qla2x00_config_dma_addressing(ha);
1689 if (qla2x00_mem_alloc(ha)) {
1690 qla_printk(KERN_WARNING, ha,
1691 "[ERROR] Failed to allocate memory for adapter\n");
1692
1693 ret = -ENOMEM;
1694 goto probe_failed;
1695 }
1696
1697 if (qla2x00_initialize_adapter(ha)) {
1698 qla_printk(KERN_WARNING, ha,
1699 "Failed to initialize adapter\n");
1700
1701 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1702 "Adapter flags %x.\n",
1703 ha->host_no, ha->device_flags));
1704
1705 ret = -ENODEV;
1706 goto probe_failed;
1707 }
1708
1709 /*
1710 * Startup the kernel thread for this host adapter
1711 */
1712 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1713 "%s_dpc", ha->host_str);
1714 if (IS_ERR(ha->dpc_thread)) {
1715 qla_printk(KERN_WARNING, ha,
1716 "Unable to start DPC thread!\n");
1717 ret = PTR_ERR(ha->dpc_thread);
1718 goto probe_failed;
1719 }
1720
1721 host->this_id = 255;
1722 host->cmd_per_lun = 3;
1723 host->unique_id = ha->instance;
1724 host->max_cmd_len = MAX_CMDSZ;
1725 host->max_channel = MAX_BUSES - 1;
1726 host->max_lun = MAX_LUNS;
1727 host->transportt = qla2xxx_transport_template;
1728
1729 ret = qla2x00_request_irqs(ha);
1730 if (ret)
1731 goto probe_failed;
1732
1733 /* Initialized the timer */
1734 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1735
1736 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1737 ha->host_no, ha));
1738
1739 ha->isp_ops->disable_intrs(ha);
1740
1741 spin_lock_irqsave(&ha->hardware_lock, flags);
1742 reg = ha->iobase;
1743 if (IS_FWI2_CAPABLE(ha)) {
1744 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1745 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1746 } else {
1747 WRT_REG_WORD(&reg->isp.semaphore, 0);
1748 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1749 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1750
1751 /* Enable proper parity */
1752 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1753 if (IS_QLA2300(ha))
1754 /* SRAM parity */
1755 WRT_REG_WORD(&reg->isp.hccr,
1756 (HCCR_ENABLE_PARITY + 0x1));
1757 else
1758 /* SRAM, Instruction RAM and GP RAM parity */
1759 WRT_REG_WORD(&reg->isp.hccr,
1760 (HCCR_ENABLE_PARITY + 0x7));
1761 }
1762 }
1763 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1764
1765 ha->isp_ops->enable_intrs(ha);
1766
1767 pci_set_drvdata(pdev, ha);
1768
1769 ha->flags.init_done = 1;
1770 ha->flags.online = 1;
1771
1772 num_hosts++;
1773
1774 ret = scsi_add_host(host, &pdev->dev);
1775 if (ret)
1776 goto probe_failed;
1777
1778 scsi_scan_host(host);
1779
1780 qla2x00_alloc_sysfs_attr(ha);
1781
1782 qla2x00_init_host_attr(ha);
1783
1784 qla_printk(KERN_INFO, ha, "\n"
1785 " QLogic Fibre Channel HBA Driver: %s\n"
1786 " QLogic %s - %s\n"
1787 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1788 qla2x00_version_str, ha->model_number,
1789 ha->model_desc ? ha->model_desc: "", pdev->device,
1790 ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1791 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1792 ha->isp_ops->fw_version_str(ha, fw_str));
1793
1794 return 0;
1795
1796 probe_failed:
1797 qla2x00_free_device(ha);
1798
1799 scsi_host_put(host);
1800
1801 probe_disable_device:
1802 pci_disable_device(pdev);
1803
1804 probe_out:
1805 return ret;
1806 }
1807
1808 static void __devexit
1809 qla2x00_remove_one(struct pci_dev *pdev)
1810 {
1811 scsi_qla_host_t *ha;
1812
1813 ha = pci_get_drvdata(pdev);
1814
1815 qla2x00_free_sysfs_attr(ha);
1816
1817 fc_remove_host(ha->host);
1818
1819 scsi_remove_host(ha->host);
1820
1821 qla2x00_free_device(ha);
1822
1823 scsi_host_put(ha->host);
1824
1825 pci_disable_device(pdev);
1826 pci_set_drvdata(pdev, NULL);
1827 }
1828
1829 static void
1830 qla2x00_free_device(scsi_qla_host_t *ha)
1831 {
1832 /* Disable timer */
1833 if (ha->timer_active)
1834 qla2x00_stop_timer(ha);
1835
1836 /* Kill the kernel thread for this host */
1837 if (ha->dpc_thread) {
1838 struct task_struct *t = ha->dpc_thread;
1839
1840 /*
1841 * qla2xxx_wake_dpc checks for ->dpc_thread
1842 * so we need to zero it out.
1843 */
1844 ha->dpc_thread = NULL;
1845 kthread_stop(t);
1846 }
1847
1848 if (ha->eft)
1849 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1850
1851 ha->flags.online = 0;
1852
1853 /* Stop currently executing firmware. */
1854 qla2x00_try_to_stop_firmware(ha);
1855
1856 /* turn-off interrupts on the card */
1857 if (ha->interrupts_on)
1858 ha->isp_ops->disable_intrs(ha);
1859
1860 qla2x00_mem_free(ha);
1861
1862 qla2x00_free_irqs(ha);
1863
1864 /* release io space registers */
1865 if (ha->iobase)
1866 iounmap(ha->iobase);
1867 pci_release_regions(ha->pdev);
1868 }
1869
1870 static inline void
1871 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1872 int defer)
1873 {
1874 unsigned long flags;
1875 struct fc_rport *rport;
1876
1877 if (!fcport->rport)
1878 return;
1879
1880 rport = fcport->rport;
1881 if (defer) {
1882 spin_lock_irqsave(&fcport->rport_lock, flags);
1883 fcport->drport = rport;
1884 fcport->rport = NULL;
1885 *(fc_port_t **)rport->dd_data = NULL;
1886 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1887 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1888 } else {
1889 spin_lock_irqsave(&fcport->rport_lock, flags);
1890 fcport->rport = NULL;
1891 *(fc_port_t **)rport->dd_data = NULL;
1892 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1893 fc_remote_port_delete(rport);
1894 }
1895 }
1896
1897 /*
1898 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1899 *
1900 * Input: ha = adapter block pointer. fcport = port structure pointer.
1901 *
1902 * Return: None.
1903 *
1904 * Context:
1905 */
1906 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1907 int do_login, int defer)
1908 {
1909 if (atomic_read(&fcport->state) == FCS_ONLINE &&
1910 ha->vp_idx == fcport->vp_idx)
1911 qla2x00_schedule_rport_del(ha, fcport, defer);
1912
1913 /*
1914 * We may need to retry the login, so don't change the state of the
1915 * port but do the retries.
1916 */
1917 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1918 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1919
1920 if (!do_login)
1921 return;
1922
1923 if (fcport->login_retry == 0) {
1924 fcport->login_retry = ha->login_retry_count;
1925 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1926
1927 DEBUG(printk("scsi(%ld): Port login retry: "
1928 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1929 "id = 0x%04x retry cnt=%d\n",
1930 ha->host_no,
1931 fcport->port_name[0],
1932 fcport->port_name[1],
1933 fcport->port_name[2],
1934 fcport->port_name[3],
1935 fcport->port_name[4],
1936 fcport->port_name[5],
1937 fcport->port_name[6],
1938 fcport->port_name[7],
1939 fcport->loop_id,
1940 fcport->login_retry));
1941 }
1942 }
1943
1944 /*
1945 * qla2x00_mark_all_devices_lost
1946 * Updates fcport state when device goes offline.
1947 *
1948 * Input:
1949 * ha = adapter block pointer.
1950 * fcport = port structure pointer.
1951 *
1952 * Return:
1953 * None.
1954 *
1955 * Context:
1956 */
1957 void
1958 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1959 {
1960 fc_port_t *fcport;
1961 scsi_qla_host_t *pha = to_qla_parent(ha);
1962
1963 list_for_each_entry(fcport, &pha->fcports, list) {
1964 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1965 continue;
1966 /*
1967 * No point in marking the device as lost, if the device is
1968 * already DEAD.
1969 */
1970 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1971 continue;
1972 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1973 if (defer)
1974 qla2x00_schedule_rport_del(ha, fcport, defer);
1975 else if (ha->vp_idx == fcport->vp_idx)
1976 qla2x00_schedule_rport_del(ha, fcport, defer);
1977 }
1978 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1979 }
1980
1981 if (defer)
1982 qla2xxx_wake_dpc(ha);
1983 }
1984
1985 /*
1986 * qla2x00_mem_alloc
1987 * Allocates adapter memory.
1988 *
1989 * Returns:
1990 * 0 = success.
1991 * 1 = failure.
1992 */
1993 uint8_t
1994 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1995 {
1996 char name[16];
1997 uint8_t status = 1;
1998 int retry= 10;
1999
2000 do {
2001 /*
2002 * This will loop only once if everything goes well, else some
2003 * number of retries will be performed to get around a kernel
2004 * bug where available mem is not allocated until after a
2005 * little delay and a retry.
2006 */
2007 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
2008 (ha->request_q_length + 1) * sizeof(request_t),
2009 &ha->request_dma, GFP_KERNEL);
2010 if (ha->request_ring == NULL) {
2011 qla_printk(KERN_WARNING, ha,
2012 "Memory Allocation failed - request_ring\n");
2013
2014 qla2x00_mem_free(ha);
2015 msleep(100);
2016
2017 continue;
2018 }
2019
2020 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
2021 (ha->response_q_length + 1) * sizeof(response_t),
2022 &ha->response_dma, GFP_KERNEL);
2023 if (ha->response_ring == NULL) {
2024 qla_printk(KERN_WARNING, ha,
2025 "Memory Allocation failed - response_ring\n");
2026
2027 qla2x00_mem_free(ha);
2028 msleep(100);
2029
2030 continue;
2031 }
2032
2033 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
2034 &ha->gid_list_dma, GFP_KERNEL);
2035 if (ha->gid_list == NULL) {
2036 qla_printk(KERN_WARNING, ha,
2037 "Memory Allocation failed - gid_list\n");
2038
2039 qla2x00_mem_free(ha);
2040 msleep(100);
2041
2042 continue;
2043 }
2044
2045 /* get consistent memory allocated for init control block */
2046 ha->init_cb = dma_alloc_coherent(&ha->pdev->dev,
2047 ha->init_cb_size, &ha->init_cb_dma, GFP_KERNEL);
2048 if (ha->init_cb == NULL) {
2049 qla_printk(KERN_WARNING, ha,
2050 "Memory Allocation failed - init_cb\n");
2051
2052 qla2x00_mem_free(ha);
2053 msleep(100);
2054
2055 continue;
2056 }
2057 memset(ha->init_cb, 0, ha->init_cb_size);
2058
2059 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
2060 ha->host_no);
2061 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
2062 DMA_POOL_SIZE, 8, 0);
2063 if (ha->s_dma_pool == NULL) {
2064 qla_printk(KERN_WARNING, ha,
2065 "Memory Allocation failed - s_dma_pool\n");
2066
2067 qla2x00_mem_free(ha);
2068 msleep(100);
2069
2070 continue;
2071 }
2072
2073 if (qla2x00_allocate_sp_pool(ha)) {
2074 qla_printk(KERN_WARNING, ha,
2075 "Memory Allocation failed - "
2076 "qla2x00_allocate_sp_pool()\n");
2077
2078 qla2x00_mem_free(ha);
2079 msleep(100);
2080
2081 continue;
2082 }
2083
2084 /* Allocate memory for SNS commands */
2085 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2086 /* Get consistent memory allocated for SNS commands */
2087 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2088 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
2089 GFP_KERNEL);
2090 if (ha->sns_cmd == NULL) {
2091 /* error */
2092 qla_printk(KERN_WARNING, ha,
2093 "Memory Allocation failed - sns_cmd\n");
2094
2095 qla2x00_mem_free(ha);
2096 msleep(100);
2097
2098 continue;
2099 }
2100 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
2101 } else {
2102 /* Get consistent memory allocated for MS IOCB */
2103 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2104 &ha->ms_iocb_dma);
2105 if (ha->ms_iocb == NULL) {
2106 /* error */
2107 qla_printk(KERN_WARNING, ha,
2108 "Memory Allocation failed - ms_iocb\n");
2109
2110 qla2x00_mem_free(ha);
2111 msleep(100);
2112
2113 continue;
2114 }
2115 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
2116
2117 /*
2118 * Get consistent memory allocated for CT SNS
2119 * commands
2120 */
2121 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2122 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2123 GFP_KERNEL);
2124 if (ha->ct_sns == NULL) {
2125 /* error */
2126 qla_printk(KERN_WARNING, ha,
2127 "Memory Allocation failed - ct_sns\n");
2128
2129 qla2x00_mem_free(ha);
2130 msleep(100);
2131
2132 continue;
2133 }
2134 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2135
2136 if (IS_FWI2_CAPABLE(ha)) {
2137 /*
2138 * Get consistent memory allocated for SFP
2139 * block.
2140 */
2141 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2142 GFP_KERNEL, &ha->sfp_data_dma);
2143 if (ha->sfp_data == NULL) {
2144 qla_printk(KERN_WARNING, ha,
2145 "Memory Allocation failed - "
2146 "sfp_data\n");
2147
2148 qla2x00_mem_free(ha);
2149 msleep(100);
2150
2151 continue;
2152 }
2153 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2154 }
2155 }
2156
2157 /* Done all allocations without any error. */
2158 status = 0;
2159
2160 } while (retry-- && status != 0);
2161
2162 if (status) {
2163 printk(KERN_WARNING
2164 "%s(): **** FAILED ****\n", __func__);
2165 }
2166
2167 return(status);
2168 }
2169
2170 /*
2171 * qla2x00_mem_free
2172 * Frees all adapter allocated memory.
2173 *
2174 * Input:
2175 * ha = adapter block pointer.
2176 */
2177 void
2178 qla2x00_mem_free(scsi_qla_host_t *ha)
2179 {
2180 struct list_head *fcpl, *fcptemp;
2181 fc_port_t *fcport;
2182
2183 if (ha == NULL) {
2184 /* error */
2185 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2186 return;
2187 }
2188
2189 /* free sp pool */
2190 qla2x00_free_sp_pool(ha);
2191
2192 if (ha->fw_dump) {
2193 if (ha->eft)
2194 dma_free_coherent(&ha->pdev->dev,
2195 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2196 vfree(ha->fw_dump);
2197 }
2198
2199 if (ha->sns_cmd)
2200 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2201 ha->sns_cmd, ha->sns_cmd_dma);
2202
2203 if (ha->ct_sns)
2204 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2205 ha->ct_sns, ha->ct_sns_dma);
2206
2207 if (ha->sfp_data)
2208 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2209
2210 if (ha->ms_iocb)
2211 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2212
2213 if (ha->s_dma_pool)
2214 dma_pool_destroy(ha->s_dma_pool);
2215
2216 if (ha->init_cb)
2217 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2218 ha->init_cb, ha->init_cb_dma);
2219
2220 if (ha->gid_list)
2221 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2222 ha->gid_list_dma);
2223
2224 if (ha->response_ring)
2225 dma_free_coherent(&ha->pdev->dev,
2226 (ha->response_q_length + 1) * sizeof(response_t),
2227 ha->response_ring, ha->response_dma);
2228
2229 if (ha->request_ring)
2230 dma_free_coherent(&ha->pdev->dev,
2231 (ha->request_q_length + 1) * sizeof(request_t),
2232 ha->request_ring, ha->request_dma);
2233
2234 ha->eft = NULL;
2235 ha->eft_dma = 0;
2236 ha->sns_cmd = NULL;
2237 ha->sns_cmd_dma = 0;
2238 ha->ct_sns = NULL;
2239 ha->ct_sns_dma = 0;
2240 ha->ms_iocb = NULL;
2241 ha->ms_iocb_dma = 0;
2242 ha->init_cb = NULL;
2243 ha->init_cb_dma = 0;
2244
2245 ha->s_dma_pool = NULL;
2246
2247 ha->gid_list = NULL;
2248 ha->gid_list_dma = 0;
2249
2250 ha->response_ring = NULL;
2251 ha->response_dma = 0;
2252 ha->request_ring = NULL;
2253 ha->request_dma = 0;
2254
2255 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2256 fcport = list_entry(fcpl, fc_port_t, list);
2257
2258 /* fc ports */
2259 list_del_init(&fcport->list);
2260 kfree(fcport);
2261 }
2262 INIT_LIST_HEAD(&ha->fcports);
2263
2264 ha->fw_dump = NULL;
2265 ha->fw_dumped = 0;
2266 ha->fw_dump_reading = 0;
2267
2268 vfree(ha->optrom_buffer);
2269 }
2270
2271 /*
2272 * qla2x00_allocate_sp_pool
2273 * This routine is called during initialization to allocate
2274 * memory for local srb_t.
2275 *
2276 * Input:
2277 * ha = adapter block pointer.
2278 *
2279 * Context:
2280 * Kernel context.
2281 */
2282 static int
2283 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2284 {
2285 int rval;
2286
2287 rval = QLA_SUCCESS;
2288 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2289 if (ha->srb_mempool == NULL) {
2290 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2291 rval = QLA_FUNCTION_FAILED;
2292 }
2293 return (rval);
2294 }
2295
2296 /*
2297 * This routine frees all adapter allocated memory.
2298 *
2299 */
2300 static void
2301 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2302 {
2303 if (ha->srb_mempool) {
2304 mempool_destroy(ha->srb_mempool);
2305 ha->srb_mempool = NULL;
2306 }
2307 }
2308
2309 /**************************************************************************
2310 * qla2x00_do_dpc
2311 * This kernel thread is a task that is schedule by the interrupt handler
2312 * to perform the background processing for interrupts.
2313 *
2314 * Notes:
2315 * This task always run in the context of a kernel thread. It
2316 * is kick-off by the driver's detect code and starts up
2317 * up one per adapter. It immediately goes to sleep and waits for
2318 * some fibre event. When either the interrupt handler or
2319 * the timer routine detects a event it will one of the task
2320 * bits then wake us up.
2321 **************************************************************************/
2322 static int
2323 qla2x00_do_dpc(void *data)
2324 {
2325 int rval;
2326 scsi_qla_host_t *ha;
2327 fc_port_t *fcport;
2328 uint8_t status;
2329 uint16_t next_loopid;
2330
2331 ha = (scsi_qla_host_t *)data;
2332
2333 set_user_nice(current, -20);
2334
2335 while (!kthread_should_stop()) {
2336 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2337
2338 set_current_state(TASK_INTERRUPTIBLE);
2339 schedule();
2340 __set_current_state(TASK_RUNNING);
2341
2342 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2343
2344 /* Initialization not yet finished. Don't do anything yet. */
2345 if (!ha->flags.init_done)
2346 continue;
2347
2348 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2349
2350 ha->dpc_active = 1;
2351
2352 if (ha->flags.mbox_busy) {
2353 ha->dpc_active = 0;
2354 continue;
2355 }
2356
2357 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2358
2359 DEBUG(printk("scsi(%ld): dpc: sched "
2360 "qla2x00_abort_isp ha = %p\n",
2361 ha->host_no, ha));
2362 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2363 &ha->dpc_flags))) {
2364
2365 if (qla2x00_abort_isp(ha)) {
2366 /* failed. retry later */
2367 set_bit(ISP_ABORT_NEEDED,
2368 &ha->dpc_flags);
2369 }
2370 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2371 }
2372 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2373 ha->host_no));
2374 }
2375
2376 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2377 qla2x00_update_fcports(ha);
2378
2379 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2380 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2381 ha->host_no));
2382 qla2x00_loop_reset(ha);
2383 }
2384
2385 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2386 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2387
2388 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2389 ha->host_no));
2390
2391 qla2x00_rst_aen(ha);
2392 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2393 }
2394
2395 /* Retry each device up to login retry count */
2396 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2397 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2398 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2399
2400 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2401 ha->host_no));
2402
2403 next_loopid = 0;
2404 list_for_each_entry(fcport, &ha->fcports, list) {
2405 /*
2406 * If the port is not ONLINE then try to login
2407 * to it if we haven't run out of retries.
2408 */
2409 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2410 fcport->login_retry) {
2411
2412 fcport->login_retry--;
2413 if (fcport->flags & FCF_FABRIC_DEVICE) {
2414 if (fcport->flags &
2415 FCF_TAPE_PRESENT)
2416 ha->isp_ops->fabric_logout(
2417 ha, fcport->loop_id,
2418 fcport->d_id.b.domain,
2419 fcport->d_id.b.area,
2420 fcport->d_id.b.al_pa);
2421 status = qla2x00_fabric_login(
2422 ha, fcport, &next_loopid);
2423 } else
2424 status =
2425 qla2x00_local_device_login(
2426 ha, fcport);
2427
2428 if (status == QLA_SUCCESS) {
2429 fcport->old_loop_id = fcport->loop_id;
2430
2431 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2432 ha->host_no, fcport->loop_id));
2433
2434 qla2x00_update_fcport(ha,
2435 fcport);
2436 } else if (status == 1) {
2437 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2438 /* retry the login again */
2439 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2440 ha->host_no,
2441 fcport->login_retry, fcport->loop_id));
2442 } else {
2443 fcport->login_retry = 0;
2444 }
2445 }
2446 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2447 break;
2448 }
2449 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2450 ha->host_no));
2451 }
2452
2453 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2454 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2455
2456 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2457 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2458 ha->host_no));
2459
2460 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2461
2462 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2463 ha->host_no));
2464 }
2465
2466 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2467
2468 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2469 ha->host_no));
2470
2471 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2472 &ha->dpc_flags))) {
2473
2474 rval = qla2x00_loop_resync(ha);
2475
2476 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2477 }
2478
2479 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2480 ha->host_no));
2481 }
2482
2483 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2484
2485 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2486 ha->host_no));
2487
2488 qla2x00_rescan_fcports(ha);
2489
2490 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2491 "end.\n",
2492 ha->host_no));
2493 }
2494
2495 if (!ha->interrupts_on)
2496 ha->isp_ops->enable_intrs(ha);
2497
2498 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2499 ha->isp_ops->beacon_blink(ha);
2500
2501 qla2x00_do_dpc_all_vps(ha);
2502
2503 ha->dpc_active = 0;
2504 } /* End of while(1) */
2505
2506 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2507
2508 /*
2509 * Make sure that nobody tries to wake us up again.
2510 */
2511 ha->dpc_active = 0;
2512
2513 return 0;
2514 }
2515
2516 void
2517 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2518 {
2519 if (ha->dpc_thread)
2520 wake_up_process(ha->dpc_thread);
2521 }
2522
2523 /*
2524 * qla2x00_rst_aen
2525 * Processes asynchronous reset.
2526 *
2527 * Input:
2528 * ha = adapter block pointer.
2529 */
2530 static void
2531 qla2x00_rst_aen(scsi_qla_host_t *ha)
2532 {
2533 if (ha->flags.online && !ha->flags.reset_active &&
2534 !atomic_read(&ha->loop_down_timer) &&
2535 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2536 do {
2537 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2538
2539 /*
2540 * Issue marker command only when we are going to start
2541 * the I/O.
2542 */
2543 ha->marker_needed = 1;
2544 } while (!atomic_read(&ha->loop_down_timer) &&
2545 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2546 }
2547 }
2548
2549 static void
2550 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2551 {
2552 struct scsi_cmnd *cmd = sp->cmd;
2553
2554 if (sp->flags & SRB_DMA_VALID) {
2555 scsi_dma_unmap(cmd);
2556 sp->flags &= ~SRB_DMA_VALID;
2557 }
2558 CMD_SP(cmd) = NULL;
2559 }
2560
2561 void
2562 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2563 {
2564 struct scsi_cmnd *cmd = sp->cmd;
2565
2566 qla2x00_sp_free_dma(ha, sp);
2567
2568 mempool_free(sp, ha->srb_mempool);
2569
2570 cmd->scsi_done(cmd);
2571 }
2572
2573 /**************************************************************************
2574 * qla2x00_timer
2575 *
2576 * Description:
2577 * One second timer
2578 *
2579 * Context: Interrupt
2580 ***************************************************************************/
2581 void
2582 qla2x00_timer(scsi_qla_host_t *ha)
2583 {
2584 unsigned long cpu_flags = 0;
2585 fc_port_t *fcport;
2586 int start_dpc = 0;
2587 int index;
2588 srb_t *sp;
2589 int t;
2590 scsi_qla_host_t *pha = to_qla_parent(ha);
2591
2592 /*
2593 * Ports - Port down timer.
2594 *
2595 * Whenever, a port is in the LOST state we start decrementing its port
2596 * down timer every second until it reaches zero. Once it reaches zero
2597 * the port it marked DEAD.
2598 */
2599 t = 0;
2600 list_for_each_entry(fcport, &ha->fcports, list) {
2601 if (fcport->port_type != FCT_TARGET)
2602 continue;
2603
2604 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2605
2606 if (atomic_read(&fcport->port_down_timer) == 0)
2607 continue;
2608
2609 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2610 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2611
2612 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2613 "%d remaining\n",
2614 ha->host_no,
2615 t, atomic_read(&fcport->port_down_timer)));
2616 }
2617 t++;
2618 } /* End of for fcport */
2619
2620
2621 /* Loop down handler. */
2622 if (atomic_read(&ha->loop_down_timer) > 0 &&
2623 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2624
2625 if (atomic_read(&ha->loop_down_timer) ==
2626 ha->loop_down_abort_time) {
2627
2628 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2629 "queues before time expire\n",
2630 ha->host_no));
2631
2632 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2633 atomic_set(&ha->loop_state, LOOP_DEAD);
2634
2635 /* Schedule an ISP abort to return any tape commands. */
2636 /* NPIV - scan physical port only */
2637 if (!ha->parent) {
2638 spin_lock_irqsave(&ha->hardware_lock,
2639 cpu_flags);
2640 for (index = 1;
2641 index < MAX_OUTSTANDING_COMMANDS;
2642 index++) {
2643 fc_port_t *sfcp;
2644
2645 sp = ha->outstanding_cmds[index];
2646 if (!sp)
2647 continue;
2648 sfcp = sp->fcport;
2649 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2650 continue;
2651
2652 set_bit(ISP_ABORT_NEEDED,
2653 &ha->dpc_flags);
2654 break;
2655 }
2656 spin_unlock_irqrestore(&ha->hardware_lock,
2657 cpu_flags);
2658 }
2659 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2660 start_dpc++;
2661 }
2662
2663 /* if the loop has been down for 4 minutes, reinit adapter */
2664 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2665 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2666 "restarting queues.\n",
2667 ha->host_no));
2668
2669 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2670 start_dpc++;
2671
2672 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2673 DEBUG(printk("scsi(%ld): Loop down - "
2674 "aborting ISP.\n",
2675 ha->host_no));
2676 qla_printk(KERN_WARNING, ha,
2677 "Loop down - aborting ISP.\n");
2678
2679 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2680 }
2681 }
2682 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2683 ha->host_no,
2684 atomic_read(&ha->loop_down_timer)));
2685 }
2686
2687 /* Check if beacon LED needs to be blinked */
2688 if (ha->beacon_blink_led == 1) {
2689 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2690 start_dpc++;
2691 }
2692
2693 /* Schedule the DPC routine if needed */
2694 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2695 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2696 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2697 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2698 start_dpc ||
2699 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2700 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2701 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2702 test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2703 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2704 qla2xxx_wake_dpc(pha);
2705
2706 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2707 }
2708
2709 /* XXX(hch): crude hack to emulate a down_timeout() */
2710 int
2711 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2712 {
2713 const unsigned int step = 100; /* msecs */
2714 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2715
2716 do {
2717 if (!down_trylock(sema))
2718 return 0;
2719 if (msleep_interruptible(step))
2720 break;
2721 } while (--iterations > 0);
2722
2723 return -ETIMEDOUT;
2724 }
2725
2726 /* Firmware interface routines. */
2727
2728 #define FW_BLOBS 6
2729 #define FW_ISP21XX 0
2730 #define FW_ISP22XX 1
2731 #define FW_ISP2300 2
2732 #define FW_ISP2322 3
2733 #define FW_ISP24XX 4
2734 #define FW_ISP25XX 5
2735
2736 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2737 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2738 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2739 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2740 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2741 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2742
2743 static DECLARE_MUTEX(qla_fw_lock);
2744
2745 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2746 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2747 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2748 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2749 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2750 { .name = FW_FILE_ISP24XX, },
2751 { .name = FW_FILE_ISP25XX, },
2752 };
2753
2754 struct fw_blob *
2755 qla2x00_request_firmware(scsi_qla_host_t *ha)
2756 {
2757 struct fw_blob *blob;
2758
2759 blob = NULL;
2760 if (IS_QLA2100(ha)) {
2761 blob = &qla_fw_blobs[FW_ISP21XX];
2762 } else if (IS_QLA2200(ha)) {
2763 blob = &qla_fw_blobs[FW_ISP22XX];
2764 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2765 blob = &qla_fw_blobs[FW_ISP2300];
2766 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2767 blob = &qla_fw_blobs[FW_ISP2322];
2768 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2769 blob = &qla_fw_blobs[FW_ISP24XX];
2770 } else if (IS_QLA25XX(ha)) {
2771 blob = &qla_fw_blobs[FW_ISP25XX];
2772 }
2773
2774 down(&qla_fw_lock);
2775 if (blob->fw)
2776 goto out;
2777
2778 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2779 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2780 "(%s).\n", ha->host_no, blob->name));
2781 blob->fw = NULL;
2782 blob = NULL;
2783 goto out;
2784 }
2785
2786 out:
2787 up(&qla_fw_lock);
2788 return blob;
2789 }
2790
2791 static void
2792 qla2x00_release_firmware(void)
2793 {
2794 int idx;
2795
2796 down(&qla_fw_lock);
2797 for (idx = 0; idx < FW_BLOBS; idx++)
2798 if (qla_fw_blobs[idx].fw)
2799 release_firmware(qla_fw_blobs[idx].fw);
2800 up(&qla_fw_lock);
2801 }
2802
2803 static struct pci_device_id qla2xxx_pci_tbl[] = {
2804 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2805 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2806 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2807 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2808 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2809 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2810 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2811 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2812 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2813 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2814 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2815 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2816 { 0 },
2817 };
2818 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2819
2820 static struct pci_driver qla2xxx_pci_driver = {
2821 .name = QLA2XXX_DRIVER_NAME,
2822 .driver = {
2823 .owner = THIS_MODULE,
2824 },
2825 .id_table = qla2xxx_pci_tbl,
2826 .probe = qla2x00_probe_one,
2827 .remove = __devexit_p(qla2x00_remove_one),
2828 };
2829
2830 /**
2831 * qla2x00_module_init - Module initialization.
2832 **/
2833 static int __init
2834 qla2x00_module_init(void)
2835 {
2836 int ret = 0;
2837
2838 /* Allocate cache for SRBs. */
2839 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2840 SLAB_HWCACHE_ALIGN, NULL);
2841 if (srb_cachep == NULL) {
2842 printk(KERN_ERR
2843 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2844 return -ENOMEM;
2845 }
2846
2847 /* Derive version string. */
2848 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2849 if (ql2xextended_error_logging)
2850 strcat(qla2x00_version_str, "-debug");
2851
2852 qla2xxx_transport_template =
2853 fc_attach_transport(&qla2xxx_transport_functions);
2854 if (!qla2xxx_transport_template) {
2855 kmem_cache_destroy(srb_cachep);
2856 return -ENODEV;
2857 }
2858 qla2xxx_transport_vport_template =
2859 fc_attach_transport(&qla2xxx_transport_vport_functions);
2860 if (!qla2xxx_transport_vport_template) {
2861 kmem_cache_destroy(srb_cachep);
2862 fc_release_transport(qla2xxx_transport_template);
2863 return -ENODEV;
2864 }
2865
2866 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2867 ret = pci_register_driver(&qla2xxx_pci_driver);
2868 if (ret) {
2869 kmem_cache_destroy(srb_cachep);
2870 fc_release_transport(qla2xxx_transport_template);
2871 fc_release_transport(qla2xxx_transport_vport_template);
2872 }
2873 return ret;
2874 }
2875
2876 /**
2877 * qla2x00_module_exit - Module cleanup.
2878 **/
2879 static void __exit
2880 qla2x00_module_exit(void)
2881 {
2882 pci_unregister_driver(&qla2xxx_pci_driver);
2883 qla2x00_release_firmware();
2884 kmem_cache_destroy(srb_cachep);
2885 fc_release_transport(qla2xxx_transport_template);
2886 fc_release_transport(qla2xxx_transport_vport_template);
2887 }
2888
2889 module_init(qla2x00_module_init);
2890 module_exit(qla2x00_module_exit);
2891
2892 MODULE_AUTHOR("QLogic Corporation");
2893 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2894 MODULE_LICENSE("GPL");
2895 MODULE_VERSION(QLA2XXX_VERSION);
2896 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2897 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2898 MODULE_FIRMWARE(FW_FILE_ISP2300);
2899 MODULE_FIRMWARE(FW_FILE_ISP2322);
2900 MODULE_FIRMWARE(FW_FILE_ISP24XX);
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