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allow coexistance of N build and AC build.
[tomato.git] / release / src-rt-6.x / linux / linux-2.6 / drivers / scsi / qla2xxx / qla_os.c
blobb98136adaaaebe4784040a05eebcdbd92a490b63
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 static int num_hosts;
33
34 int ql2xlogintimeout = 20;
35 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
36 MODULE_PARM_DESC(ql2xlogintimeout,
37 "Login timeout value in seconds.");
38
39 int qlport_down_retry;
40 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
41 MODULE_PARM_DESC(qlport_down_retry,
42 "Maximum number of command retries to a port that returns "
43 "a PORT-DOWN status.");
44
45 int ql2xplogiabsentdevice;
46 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
47 MODULE_PARM_DESC(ql2xplogiabsentdevice,
48 "Option to enable PLOGI to devices that are not present after "
49 "a Fabric scan. This is needed for several broken switches. "
50 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
51
52 int ql2xloginretrycount = 0;
53 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
54 MODULE_PARM_DESC(ql2xloginretrycount,
55 "Specify an alternate value for the NVRAM login retry count.");
56
57 int ql2xallocfwdump = 1;
58 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xallocfwdump,
60 "Option to enable allocation of memory for a firmware dump "
61 "during HBA initialization. Memory allocation requirements "
62 "vary by ISP type. Default is 1 - allocate memory.");
63
64 int ql2xextended_error_logging;
65 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
66 MODULE_PARM_DESC(ql2xextended_error_logging,
67 "Option to enable extended error logging, "
68 "Default is 0 - no logging. 1 - log errors.");
69
70 static void qla2x00_free_device(scsi_qla_host_t *);
71
72 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
73
74 int ql2xfdmienable;
75 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
76 MODULE_PARM_DESC(ql2xfdmienable,
77 "Enables FDMI registratons "
78 "Default is 0 - no FDMI. 1 - perfom FDMI.");
79
80 #define MAX_Q_DEPTH 32
81 static int ql2xmaxqdepth = MAX_Q_DEPTH;
82 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
83 MODULE_PARM_DESC(ql2xmaxqdepth,
84 "Maximum queue depth to report for target devices.");
85
86 int ql2xqfullrampup = 120;
87 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
88 MODULE_PARM_DESC(ql2xqfullrampup,
89 "Number of seconds to wait to begin to ramp-up the queue "
90 "depth for a device after a queue-full condition has been "
91 "detected. Default is 120 seconds.");
92
93 /*
94 * SCSI host template entry points
95 */
96 static int qla2xxx_slave_configure(struct scsi_device * device);
97 static int qla2xxx_slave_alloc(struct scsi_device *);
98 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
99 static void qla2xxx_scan_start(struct Scsi_Host *);
100 static void qla2xxx_slave_destroy(struct scsi_device *);
101 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
102 void (*fn)(struct scsi_cmnd *));
103 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
104 void (*fn)(struct scsi_cmnd *));
105 static int qla2xxx_eh_abort(struct scsi_cmnd *);
106 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
107 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
108 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
109 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
110 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
111
112 static int qla2x00_change_queue_depth(struct scsi_device *, int);
113 static int qla2x00_change_queue_type(struct scsi_device *, int);
114
115 static struct scsi_host_template qla2x00_driver_template = {
116 .module = THIS_MODULE,
117 .name = QLA2XXX_DRIVER_NAME,
118 .queuecommand = qla2x00_queuecommand,
119
120 .eh_abort_handler = qla2xxx_eh_abort,
121 .eh_device_reset_handler = qla2xxx_eh_device_reset,
122 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
123 .eh_host_reset_handler = qla2xxx_eh_host_reset,
124
125 .slave_configure = qla2xxx_slave_configure,
126
127 .slave_alloc = qla2xxx_slave_alloc,
128 .slave_destroy = qla2xxx_slave_destroy,
129 .scan_finished = qla2xxx_scan_finished,
130 .scan_start = qla2xxx_scan_start,
131 .change_queue_depth = qla2x00_change_queue_depth,
132 .change_queue_type = qla2x00_change_queue_type,
133 .this_id = -1,
134 .cmd_per_lun = 3,
135 .use_clustering = ENABLE_CLUSTERING,
136 .sg_tablesize = SG_ALL,
137
138 /*
139 * The RISC allows for each command to transfer (2^32-1) bytes of data,
140 * which equates to 0x800000 sectors.
141 */
142 .max_sectors = 0xFFFF,
143 .shost_attrs = qla2x00_host_attrs,
144 };
145
146 static struct scsi_host_template qla24xx_driver_template = {
147 .module = THIS_MODULE,
148 .name = QLA2XXX_DRIVER_NAME,
149 .queuecommand = qla24xx_queuecommand,
150
151 .eh_abort_handler = qla2xxx_eh_abort,
152 .eh_device_reset_handler = qla2xxx_eh_device_reset,
153 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
154 .eh_host_reset_handler = qla2xxx_eh_host_reset,
155
156 .slave_configure = qla2xxx_slave_configure,
157
158 .slave_alloc = qla2xxx_slave_alloc,
159 .slave_destroy = qla2xxx_slave_destroy,
160 .scan_finished = qla2xxx_scan_finished,
161 .scan_start = qla2xxx_scan_start,
162 .change_queue_depth = qla2x00_change_queue_depth,
163 .change_queue_type = qla2x00_change_queue_type,
164 .this_id = -1,
165 .cmd_per_lun = 3,
166 .use_clustering = ENABLE_CLUSTERING,
167 .sg_tablesize = SG_ALL,
168
169 .max_sectors = 0xFFFF,
170 .shost_attrs = qla2x00_host_attrs,
171 };
172
173 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
174
175 /* TODO Convert to inlines
176 *
177 * Timer routines
178 */
179 #define WATCH_INTERVAL 1 /* number of seconds */
180
181 static void qla2x00_timer(scsi_qla_host_t *);
182
183 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
184 void *, unsigned long);
185 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
186 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
187
188 static inline void
189 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
190 {
191 init_timer(&ha->timer);
192 ha->timer.expires = jiffies + interval * HZ;
193 ha->timer.data = (unsigned long)ha;
194 ha->timer.function = (void (*)(unsigned long))func;
195 add_timer(&ha->timer);
196 ha->timer_active = 1;
197 }
198
199 static inline void
200 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
201 {
202 mod_timer(&ha->timer, jiffies + interval * HZ);
203 }
204
205 static __inline__ void
206 qla2x00_stop_timer(scsi_qla_host_t *ha)
207 {
208 del_timer_sync(&ha->timer);
209 ha->timer_active = 0;
210 }
211
212 static int qla2x00_do_dpc(void *data);
213
214 static void qla2x00_rst_aen(scsi_qla_host_t *);
215
216 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
217 static void qla2x00_mem_free(scsi_qla_host_t *ha);
218 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
219 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
220 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
221 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
222
223 /* -------------------------------------------------------------------------- */
224
225 static char *
226 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
227 {
228 static char *pci_bus_modes[] = {
229 "33", "66", "100", "133",
230 };
231 uint16_t pci_bus;
232
233 strcpy(str, "PCI");
234 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
235 if (pci_bus) {
236 strcat(str, "-X (");
237 strcat(str, pci_bus_modes[pci_bus]);
238 } else {
239 pci_bus = (ha->pci_attr & BIT_8) >> 8;
240 strcat(str, " (");
241 strcat(str, pci_bus_modes[pci_bus]);
242 }
243 strcat(str, " MHz)");
244
245 return (str);
246 }
247
248 static char *
249 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
250 {
251 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
252 uint32_t pci_bus;
253 int pcie_reg;
254
255 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
256 if (pcie_reg) {
257 char lwstr[6];
258 uint16_t pcie_lstat, lspeed, lwidth;
259
260 pcie_reg += 0x12;
261 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
262 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
263 lwidth = (pcie_lstat &
264 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
265
266 strcpy(str, "PCIe (");
267 if (lspeed == 1)
268 strcat(str, "2.5Gb/s ");
269 else
270 strcat(str, "<unknown> ");
271 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
272 strcat(str, lwstr);
273
274 return str;
275 }
276
277 strcpy(str, "PCI");
278 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
279 if (pci_bus == 0 || pci_bus == 8) {
280 strcat(str, " (");
281 strcat(str, pci_bus_modes[pci_bus >> 3]);
282 } else {
283 strcat(str, "-X ");
284 if (pci_bus & BIT_2)
285 strcat(str, "Mode 2");
286 else
287 strcat(str, "Mode 1");
288 strcat(str, " (");
289 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
290 }
291 strcat(str, " MHz)");
292
293 return str;
294 }
295
296 static char *
297 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
298 {
299 char un_str[10];
300
301 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
302 ha->fw_minor_version,
303 ha->fw_subminor_version);
304
305 if (ha->fw_attributes & BIT_9) {
306 strcat(str, "FLX");
307 return (str);
308 }
309
310 switch (ha->fw_attributes & 0xFF) {
311 case 0x7:
312 strcat(str, "EF");
313 break;
314 case 0x17:
315 strcat(str, "TP");
316 break;
317 case 0x37:
318 strcat(str, "IP");
319 break;
320 case 0x77:
321 strcat(str, "VI");
322 break;
323 default:
324 sprintf(un_str, "(%x)", ha->fw_attributes);
325 strcat(str, un_str);
326 break;
327 }
328 if (ha->fw_attributes & 0x100)
329 strcat(str, "X");
330
331 return (str);
332 }
333
334 static char *
335 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
336 {
337 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
338 ha->fw_minor_version,
339 ha->fw_subminor_version);
340
341 if (ha->fw_attributes & BIT_0)
342 strcat(str, "[Class 2] ");
343 if (ha->fw_attributes & BIT_1)
344 strcat(str, "[IP] ");
345 if (ha->fw_attributes & BIT_2)
346 strcat(str, "[Multi-ID] ");
347 if (ha->fw_attributes & BIT_13)
348 strcat(str, "[Experimental]");
349 return str;
350 }
351
352 static inline srb_t *
353 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
354 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
355 {
356 srb_t *sp;
357
358 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
359 if (!sp)
360 return sp;
361
362 sp->ha = ha;
363 sp->fcport = fcport;
364 sp->cmd = cmd;
365 sp->flags = 0;
366 CMD_SP(cmd) = (void *)sp;
367 cmd->scsi_done = done;
368
369 return sp;
370 }
371
372 static int
373 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
374 {
375 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
376 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
377 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
378 srb_t *sp;
379 int rval;
380
381 rval = fc_remote_port_chkready(rport);
382 if (rval) {
383 cmd->result = rval;
384 goto qc_fail_command;
385 }
386
387 /* Close window on fcport/rport state-transitioning. */
388 if (!*(fc_port_t **)rport->dd_data) {
389 cmd->result = DID_IMM_RETRY << 16;
390 goto qc_fail_command;
391 }
392
393 if (atomic_read(&fcport->state) != FCS_ONLINE) {
394 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
395 atomic_read(&ha->loop_state) == LOOP_DEAD) {
396 cmd->result = DID_NO_CONNECT << 16;
397 goto qc_fail_command;
398 }
399 goto qc_host_busy;
400 }
401
402 spin_unlock_irq(ha->host->host_lock);
403
404 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
405 if (!sp)
406 goto qc_host_busy_lock;
407
408 rval = qla2x00_start_scsi(sp);
409 if (rval != QLA_SUCCESS)
410 goto qc_host_busy_free_sp;
411
412 spin_lock_irq(ha->host->host_lock);
413
414 return 0;
415
416 qc_host_busy_free_sp:
417 qla2x00_sp_free_dma(ha, sp);
418 mempool_free(sp, ha->srb_mempool);
419
420 qc_host_busy_lock:
421 spin_lock_irq(ha->host->host_lock);
422
423 qc_host_busy:
424 return SCSI_MLQUEUE_HOST_BUSY;
425
426 qc_fail_command:
427 done(cmd);
428
429 return 0;
430 }
431
432
433 static int
434 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
435 {
436 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
437 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
438 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
439 srb_t *sp;
440 int rval;
441
442 rval = fc_remote_port_chkready(rport);
443 if (rval) {
444 cmd->result = rval;
445 goto qc24_fail_command;
446 }
447
448 /* Close window on fcport/rport state-transitioning. */
449 if (!*(fc_port_t **)rport->dd_data) {
450 cmd->result = DID_IMM_RETRY << 16;
451 goto qc24_fail_command;
452 }
453
454 if (atomic_read(&fcport->state) != FCS_ONLINE) {
455 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
456 atomic_read(&ha->loop_state) == LOOP_DEAD) {
457 cmd->result = DID_NO_CONNECT << 16;
458 goto qc24_fail_command;
459 }
460 goto qc24_host_busy;
461 }
462
463 spin_unlock_irq(ha->host->host_lock);
464
465 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
466 if (!sp)
467 goto qc24_host_busy_lock;
468
469 rval = qla24xx_start_scsi(sp);
470 if (rval != QLA_SUCCESS)
471 goto qc24_host_busy_free_sp;
472
473 spin_lock_irq(ha->host->host_lock);
474
475 return 0;
476
477 qc24_host_busy_free_sp:
478 qla2x00_sp_free_dma(ha, sp);
479 mempool_free(sp, ha->srb_mempool);
480
481 qc24_host_busy_lock:
482 spin_lock_irq(ha->host->host_lock);
483
484 qc24_host_busy:
485 return SCSI_MLQUEUE_HOST_BUSY;
486
487 qc24_fail_command:
488 done(cmd);
489
490 return 0;
491 }
492
493
494 /*
495 * qla2x00_eh_wait_on_command
496 * Waits for the command to be returned by the Firmware for some
497 * max time.
498 *
499 * Input:
500 * ha = actual ha whose done queue will contain the command
501 * returned by firmware.
502 * cmd = Scsi Command to wait on.
503 * flag = Abort/Reset(Bus or Device Reset)
504 *
505 * Return:
506 * Not Found : 0
507 * Found : 1
508 */
509 static int
510 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
511 {
512 #define ABORT_POLLING_PERIOD 1000
513 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
514 unsigned long wait_iter = ABORT_WAIT_ITER;
515 int ret = QLA_SUCCESS;
516
517 while (CMD_SP(cmd)) {
518 msleep(ABORT_POLLING_PERIOD);
519
520 if (--wait_iter)
521 break;
522 }
523 if (CMD_SP(cmd))
524 ret = QLA_FUNCTION_FAILED;
525
526 return ret;
527 }
528
529 /*
530 * qla2x00_wait_for_hba_online
531 * Wait till the HBA is online after going through
532 * <= MAX_RETRIES_OF_ISP_ABORT or
533 * finally HBA is disabled ie marked offline
534 *
535 * Input:
536 * ha - pointer to host adapter structure
537 *
538 * Note:
539 * Does context switching-Release SPIN_LOCK
540 * (if any) before calling this routine.
541 *
542 * Return:
543 * Success (Adapter is online) : 0
544 * Failed (Adapter is offline/disabled) : 1
545 */
546 int
547 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
548 {
549 int return_status;
550 unsigned long wait_online;
551
552 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
553 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
554 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
555 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
556 ha->dpc_active) && time_before(jiffies, wait_online)) {
557
558 msleep(1000);
559 }
560 if (ha->flags.online)
561 return_status = QLA_SUCCESS;
562 else
563 return_status = QLA_FUNCTION_FAILED;
564
565 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
566
567 return (return_status);
568 }
569
570 /*
571 * qla2x00_wait_for_loop_ready
572 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
573 * to be in LOOP_READY state.
574 * Input:
575 * ha - pointer to host adapter structure
576 *
577 * Note:
578 * Does context switching-Release SPIN_LOCK
579 * (if any) before calling this routine.
580 *
581 *
582 * Return:
583 * Success (LOOP_READY) : 0
584 * Failed (LOOP_NOT_READY) : 1
585 */
586 static inline int
587 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
588 {
589 int return_status = QLA_SUCCESS;
590 unsigned long loop_timeout ;
591
592 /* wait for 5 min at the max for loop to be ready */
593 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
594
595 while ((!atomic_read(&ha->loop_down_timer) &&
596 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
597 atomic_read(&ha->loop_state) != LOOP_READY) {
598 if (atomic_read(&ha->loop_state) == LOOP_DEAD) {
599 return_status = QLA_FUNCTION_FAILED;
600 break;
601 }
602 msleep(1000);
603 if (time_after_eq(jiffies, loop_timeout)) {
604 return_status = QLA_FUNCTION_FAILED;
605 break;
606 }
607 }
608 return (return_status);
609 }
610
611 static void
612 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
613 {
614 struct Scsi_Host *shost = cmnd->device->host;
615 struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
616 unsigned long flags;
617
618 spin_lock_irqsave(shost->host_lock, flags);
619 while (rport->port_state == FC_PORTSTATE_BLOCKED) {
620 spin_unlock_irqrestore(shost->host_lock, flags);
621 msleep(1000);
622 spin_lock_irqsave(shost->host_lock, flags);
623 }
624 spin_unlock_irqrestore(shost->host_lock, flags);
625 return;
626 }
627
628 /**************************************************************************
629 * qla2xxx_eh_abort
630 *
631 * Description:
632 * The abort function will abort the specified command.
633 *
634 * Input:
635 * cmd = Linux SCSI command packet to be aborted.
636 *
637 * Returns:
638 * Either SUCCESS or FAILED.
639 *
640 * Note:
641 * Only return FAILED if command not returned by firmware.
642 **************************************************************************/
643 static int
644 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
645 {
646 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
647 srb_t *sp;
648 int ret, i;
649 unsigned int id, lun;
650 unsigned long serial;
651 unsigned long flags;
652 int wait = 0;
653
654 qla2x00_block_error_handler(cmd);
655
656 if (!CMD_SP(cmd))
657 return SUCCESS;
658
659 ret = SUCCESS;
660
661 id = cmd->device->id;
662 lun = cmd->device->lun;
663 serial = cmd->serial_number;
664
665 /* Check active list for command command. */
666 spin_lock_irqsave(&ha->hardware_lock, flags);
667 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
668 sp = ha->outstanding_cmds[i];
669
670 if (sp == NULL)
671 continue;
672
673 if (sp->cmd != cmd)
674 continue;
675
676 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
677 __func__, ha->host_no, sp, serial));
678 DEBUG3(qla2x00_print_scsi_cmd(cmd));
679
680 spin_unlock_irqrestore(&ha->hardware_lock, flags);
681 if (ha->isp_ops.abort_command(ha, sp)) {
682 DEBUG2(printk("%s(%ld): abort_command "
683 "mbx failed.\n", __func__, ha->host_no));
684 } else {
685 DEBUG3(printk("%s(%ld): abort_command "
686 "mbx success.\n", __func__, ha->host_no));
687 wait = 1;
688 }
689 spin_lock_irqsave(&ha->hardware_lock, flags);
690
691 break;
692 }
693 spin_unlock_irqrestore(&ha->hardware_lock, flags);
694
695 /* Wait for the command to be returned. */
696 if (wait) {
697 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
698 qla_printk(KERN_ERR, ha,
699 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
700 "%x.\n", ha->host_no, id, lun, serial, ret);
701 ret = FAILED;
702 }
703 }
704
705 qla_printk(KERN_INFO, ha,
706 "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
707 ha->host_no, id, lun, wait, serial, ret);
708
709 return ret;
710 }
711
712 /**************************************************************************
713 * qla2x00_eh_wait_for_pending_target_commands
714 *
715 * Description:
716 * Waits for all the commands to come back from the specified target.
717 *
718 * Input:
719 * ha - pointer to scsi_qla_host structure.
720 * t - target
721 * Returns:
722 * Either SUCCESS or FAILED.
723 *
724 * Note:
725 **************************************************************************/
726 static int
727 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
728 {
729 int cnt;
730 int status;
731 srb_t *sp;
732 struct scsi_cmnd *cmd;
733 unsigned long flags;
734
735 status = 0;
736
737 /*
738 * Waiting for all commands for the designated target in the active
739 * array
740 */
741 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
742 spin_lock_irqsave(&ha->hardware_lock, flags);
743 sp = ha->outstanding_cmds[cnt];
744 if (sp) {
745 cmd = sp->cmd;
746 spin_unlock_irqrestore(&ha->hardware_lock, flags);
747 if (cmd->device->id == t) {
748 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
749 status = 1;
750 break;
751 }
752 }
753 } else {
754 spin_unlock_irqrestore(&ha->hardware_lock, flags);
755 }
756 }
757 return (status);
758 }
759
760
761 /**************************************************************************
762 * qla2xxx_eh_device_reset
763 *
764 * Description:
765 * The device reset function will reset the target and abort any
766 * executing commands.
767 *
768 * NOTE: The use of SP is undefined within this context. Do *NOT*
769 * attempt to use this value, even if you determine it is
770 * non-null.
771 *
772 * Input:
773 * cmd = Linux SCSI command packet of the command that cause the
774 * bus device reset.
775 *
776 * Returns:
777 * SUCCESS/FAILURE (defined as macro in scsi.h).
778 *
779 **************************************************************************/
780 static int
781 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
782 {
783 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
784 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
785 int ret;
786 unsigned int id, lun;
787 unsigned long serial;
788
789 qla2x00_block_error_handler(cmd);
790
791 ret = FAILED;
792
793 id = cmd->device->id;
794 lun = cmd->device->lun;
795 serial = cmd->serial_number;
796
797 if (!fcport)
798 return ret;
799
800 qla_printk(KERN_INFO, ha,
801 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
802
803 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
804 goto eh_dev_reset_done;
805
806 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
807 if (qla2x00_device_reset(ha, fcport) == 0)
808 ret = SUCCESS;
809
810 #if defined(LOGOUT_AFTER_DEVICE_RESET)
811 if (ret == SUCCESS) {
812 if (fcport->flags & FC_FABRIC_DEVICE) {
813 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
814 qla2x00_mark_device_lost(ha, fcport, 0, 0);
815 }
816 }
817 #endif
818 } else {
819 DEBUG2(printk(KERN_INFO
820 "%s failed: loop not ready\n",__func__));
821 }
822
823 if (ret == FAILED) {
824 DEBUG3(printk("%s(%ld): device reset failed\n",
825 __func__, ha->host_no));
826 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
827 __func__);
828
829 goto eh_dev_reset_done;
830 }
831
832 /* Flush outstanding commands. */
833 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
834 ret = FAILED;
835 if (ret == FAILED) {
836 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
837 __func__, ha->host_no));
838 qla_printk(KERN_INFO, ha,
839 "%s: failed while waiting for commands\n", __func__);
840 } else
841 qla_printk(KERN_INFO, ha,
842 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
843 id, lun);
844 eh_dev_reset_done:
845 return ret;
846 }
847
848 /**************************************************************************
849 * qla2x00_eh_wait_for_pending_commands
850 *
851 * Description:
852 * Waits for all the commands to come back from the specified host.
853 *
854 * Input:
855 * ha - pointer to scsi_qla_host structure.
856 *
857 * Returns:
858 * 1 : SUCCESS
859 * 0 : FAILED
860 *
861 * Note:
862 **************************************************************************/
863 static int
864 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
865 {
866 int cnt;
867 int status;
868 srb_t *sp;
869 struct scsi_cmnd *cmd;
870 unsigned long flags;
871
872 status = 1;
873
874 /*
875 * Waiting for all commands for the designated target in the active
876 * array
877 */
878 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
879 spin_lock_irqsave(&ha->hardware_lock, flags);
880 sp = ha->outstanding_cmds[cnt];
881 if (sp) {
882 cmd = sp->cmd;
883 spin_unlock_irqrestore(&ha->hardware_lock, flags);
884 status = qla2x00_eh_wait_on_command(ha, cmd);
885 if (status == 0)
886 break;
887 }
888 else {
889 spin_unlock_irqrestore(&ha->hardware_lock, flags);
890 }
891 }
892 return (status);
893 }
894
895
896 /**************************************************************************
897 * qla2xxx_eh_bus_reset
898 *
899 * Description:
900 * The bus reset function will reset the bus and abort any executing
901 * commands.
902 *
903 * Input:
904 * cmd = Linux SCSI command packet of the command that cause the
905 * bus reset.
906 *
907 * Returns:
908 * SUCCESS/FAILURE (defined as macro in scsi.h).
909 *
910 **************************************************************************/
911 static int
912 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
913 {
914 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
915 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
916 int ret;
917 unsigned int id, lun;
918 unsigned long serial;
919
920 qla2x00_block_error_handler(cmd);
921
922 ret = FAILED;
923
924 id = cmd->device->id;
925 lun = cmd->device->lun;
926 serial = cmd->serial_number;
927
928 if (!fcport)
929 return ret;
930
931 qla_printk(KERN_INFO, ha,
932 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
933
934 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
935 DEBUG2(printk("%s failed:board disabled\n",__func__));
936 goto eh_bus_reset_done;
937 }
938
939 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
940 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
941 ret = SUCCESS;
942 }
943 if (ret == FAILED)
944 goto eh_bus_reset_done;
945
946 /* Flush outstanding commands. */
947 if (!qla2x00_eh_wait_for_pending_commands(ha))
948 ret = FAILED;
949
950 eh_bus_reset_done:
951 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
952 (ret == FAILED) ? "failed" : "succeded");
953
954 return ret;
955 }
956
957 /**************************************************************************
958 * qla2xxx_eh_host_reset
959 *
960 * Description:
961 * The reset function will reset the Adapter.
962 *
963 * Input:
964 * cmd = Linux SCSI command packet of the command that cause the
965 * adapter reset.
966 *
967 * Returns:
968 * Either SUCCESS or FAILED.
969 *
970 * Note:
971 **************************************************************************/
972 static int
973 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
974 {
975 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
976 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
977 int ret;
978 unsigned int id, lun;
979 unsigned long serial;
980
981 qla2x00_block_error_handler(cmd);
982
983 ret = FAILED;
984
985 id = cmd->device->id;
986 lun = cmd->device->lun;
987 serial = cmd->serial_number;
988
989 if (!fcport)
990 return ret;
991
992 qla_printk(KERN_INFO, ha,
993 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
994
995 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
996 goto eh_host_reset_lock;
997
998 /*
999 * Fixme-may be dpc thread is active and processing
1000 * loop_resync,so wait a while for it to
1001 * be completed and then issue big hammer.Otherwise
1002 * it may cause I/O failure as big hammer marks the
1003 * devices as lost kicking of the port_down_timer
1004 * while dpc is stuck for the mailbox to complete.
1005 */
1006 qla2x00_wait_for_loop_ready(ha);
1007 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1008 if (qla2x00_abort_isp(ha)) {
1009 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1010 /* failed. schedule dpc to try */
1011 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
1012
1013 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
1014 goto eh_host_reset_lock;
1015 }
1016 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
1017
1018 /* Waiting for our command in done_queue to be returned to OS.*/
1019 if (qla2x00_eh_wait_for_pending_commands(ha))
1020 ret = SUCCESS;
1021
1022 eh_host_reset_lock:
1023 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1024 (ret == FAILED) ? "failed" : "succeded");
1025
1026 return ret;
1027 }
1028
1029 /*
1030 * qla2x00_loop_reset
1031 * Issue loop reset.
1032 *
1033 * Input:
1034 * ha = adapter block pointer.
1035 *
1036 * Returns:
1037 * 0 = success
1038 */
1039 static int
1040 qla2x00_loop_reset(scsi_qla_host_t *ha)
1041 {
1042 int ret;
1043 struct fc_port *fcport;
1044
1045 if (ha->flags.enable_lip_full_login) {
1046 ret = qla2x00_full_login_lip(ha);
1047 if (ret != QLA_SUCCESS) {
1048 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1049 "full_login_lip=%d.\n", __func__, ha->host_no,
1050 ret));
1051 }
1052 atomic_set(&ha->loop_state, LOOP_DOWN);
1053 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1054 qla2x00_mark_all_devices_lost(ha, 0);
1055 qla2x00_wait_for_loop_ready(ha);
1056 }
1057
1058 if (ha->flags.enable_lip_reset) {
1059 ret = qla2x00_lip_reset(ha);
1060 if (ret != QLA_SUCCESS) {
1061 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1062 "lip_reset=%d.\n", __func__, ha->host_no, ret));
1063 }
1064 qla2x00_wait_for_loop_ready(ha);
1065 }
1066
1067 if (ha->flags.enable_target_reset) {
1068 list_for_each_entry(fcport, &ha->fcports, list) {
1069 if (fcport->port_type != FCT_TARGET)
1070 continue;
1071
1072 ret = qla2x00_device_reset(ha, fcport);
1073 if (ret != QLA_SUCCESS) {
1074 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1075 "target_reset=%d d_id=%x.\n", __func__,
1076 ha->host_no, ret, fcport->d_id.b24));
1077 }
1078 }
1079 }
1080
1081 /* Issue marker command only when we are going to start the I/O */
1082 ha->marker_needed = 1;
1083
1084 return QLA_SUCCESS;
1085 }
1086
1087 /*
1088 * qla2x00_device_reset
1089 * Issue bus device reset message to the target.
1090 *
1091 * Input:
1092 * ha = adapter block pointer.
1093 * t = SCSI ID.
1094 * TARGET_QUEUE_LOCK must be released.
1095 * ADAPTER_STATE_LOCK must be released.
1096 *
1097 * Context:
1098 * Kernel context.
1099 */
1100 static int
1101 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1102 {
1103 /* Abort Target command will clear Reservation */
1104 return ha->isp_ops.abort_target(reset_fcport);
1105 }
1106
1107 static int
1108 qla2xxx_slave_alloc(struct scsi_device *sdev)
1109 {
1110 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1111
1112 if (!rport || fc_remote_port_chkready(rport))
1113 return -ENXIO;
1114
1115 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1116
1117 return 0;
1118 }
1119
1120 static int
1121 qla2xxx_slave_configure(struct scsi_device *sdev)
1122 {
1123 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1124 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1125
1126 if (sdev->tagged_supported)
1127 scsi_activate_tcq(sdev, ha->max_q_depth);
1128 else
1129 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1130
1131 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1132
1133 return 0;
1134 }
1135
1136 static void
1137 qla2xxx_slave_destroy(struct scsi_device *sdev)
1138 {
1139 sdev->hostdata = NULL;
1140 }
1141
1142 static int
1143 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1144 {
1145 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1146 return sdev->queue_depth;
1147 }
1148
1149 static int
1150 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1151 {
1152 if (sdev->tagged_supported) {
1153 scsi_set_tag_type(sdev, tag_type);
1154 if (tag_type)
1155 scsi_activate_tcq(sdev, sdev->queue_depth);
1156 else
1157 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1158 } else
1159 tag_type = 0;
1160
1161 return tag_type;
1162 }
1163
1164 /**
1165 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1166 * @ha: HA context
1167 *
1168 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1169 * supported addressing method.
1170 */
1171 static void
1172 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1173 {
1174 /* Assume a 32bit DMA mask. */
1175 ha->flags.enable_64bit_addressing = 0;
1176
1177 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1178 /* Any upper-dword bits set? */
1179 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1180 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1181 /* Ok, a 64bit DMA mask is applicable. */
1182 ha->flags.enable_64bit_addressing = 1;
1183 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1184 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1185 return;
1186 }
1187 }
1188
1189 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1190 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1191 }
1192
1193 static inline void
1194 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1195 {
1196 ha->device_type = DT_EXTENDED_IDS;
1197 switch (ha->pdev->device) {
1198 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1199 ha->device_type |= DT_ISP2100;
1200 ha->device_type &= ~DT_EXTENDED_IDS;
1201 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1202 break;
1203 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1204 ha->device_type |= DT_ISP2200;
1205 ha->device_type &= ~DT_EXTENDED_IDS;
1206 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1207 break;
1208 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1209 ha->device_type |= DT_ISP2300;
1210 ha->device_type |= DT_ZIO_SUPPORTED;
1211 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1212 break;
1213 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1214 ha->device_type |= DT_ISP2312;
1215 ha->device_type |= DT_ZIO_SUPPORTED;
1216 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1217 break;
1218 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1219 ha->device_type |= DT_ISP2322;
1220 ha->device_type |= DT_ZIO_SUPPORTED;
1221 if (ha->pdev->subsystem_vendor == 0x1028 &&
1222 ha->pdev->subsystem_device == 0x0170)
1223 ha->device_type |= DT_OEM_001;
1224 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1225 break;
1226 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1227 ha->device_type |= DT_ISP6312;
1228 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1229 break;
1230 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1231 ha->device_type |= DT_ISP6322;
1232 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1233 break;
1234 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1235 ha->device_type |= DT_ISP2422;
1236 ha->device_type |= DT_ZIO_SUPPORTED;
1237 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1238 break;
1239 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1240 ha->device_type |= DT_ISP2432;
1241 ha->device_type |= DT_ZIO_SUPPORTED;
1242 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1243 break;
1244 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1245 ha->device_type |= DT_ISP5422;
1246 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1247 break;
1248 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1249 ha->device_type |= DT_ISP5432;
1250 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1251 break;
1252 }
1253 }
1254
1255 static int
1256 qla2x00_iospace_config(scsi_qla_host_t *ha)
1257 {
1258 unsigned long pio, pio_len, pio_flags;
1259 unsigned long mmio, mmio_len, mmio_flags;
1260
1261 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1262 pio = pci_resource_start(ha->pdev, 0);
1263 pio_len = pci_resource_len(ha->pdev, 0);
1264 pio_flags = pci_resource_flags(ha->pdev, 0);
1265 if (pio_flags & IORESOURCE_IO) {
1266 if (pio_len < MIN_IOBASE_LEN) {
1267 qla_printk(KERN_WARNING, ha,
1268 "Invalid PCI I/O region size (%s)...\n",
1269 pci_name(ha->pdev));
1270 pio = 0;
1271 }
1272 } else {
1273 qla_printk(KERN_WARNING, ha,
1274 "region #0 not a PIO resource (%s)...\n",
1275 pci_name(ha->pdev));
1276 pio = 0;
1277 }
1278
1279 /* Use MMIO operations for all accesses. */
1280 mmio = pci_resource_start(ha->pdev, 1);
1281 mmio_len = pci_resource_len(ha->pdev, 1);
1282 mmio_flags = pci_resource_flags(ha->pdev, 1);
1283
1284 if (!(mmio_flags & IORESOURCE_MEM)) {
1285 qla_printk(KERN_ERR, ha,
1286 "region #0 not an MMIO resource (%s), aborting\n",
1287 pci_name(ha->pdev));
1288 goto iospace_error_exit;
1289 }
1290 if (mmio_len < MIN_IOBASE_LEN) {
1291 qla_printk(KERN_ERR, ha,
1292 "Invalid PCI mem region size (%s), aborting\n",
1293 pci_name(ha->pdev));
1294 goto iospace_error_exit;
1295 }
1296
1297 if (pci_request_regions(ha->pdev, QLA2XXX_DRIVER_NAME)) {
1298 qla_printk(KERN_WARNING, ha,
1299 "Failed to reserve PIO/MMIO regions (%s)\n",
1300 pci_name(ha->pdev));
1301
1302 goto iospace_error_exit;
1303 }
1304
1305 ha->pio_address = pio;
1306 ha->pio_length = pio_len;
1307 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1308 if (!ha->iobase) {
1309 qla_printk(KERN_ERR, ha,
1310 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1311
1312 goto iospace_error_exit;
1313 }
1314
1315 return (0);
1316
1317 iospace_error_exit:
1318 return (-ENOMEM);
1319 }
1320
1321 static void
1322 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1323 {
1324 unsigned long flags = 0;
1325 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1326
1327 spin_lock_irqsave(&ha->hardware_lock, flags);
1328 ha->interrupts_on = 1;
1329 /* enable risc and host interrupts */
1330 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1331 RD_REG_WORD(&reg->ictrl);
1332 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1333
1334 }
1335
1336 static void
1337 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1338 {
1339 unsigned long flags = 0;
1340 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1341
1342 spin_lock_irqsave(&ha->hardware_lock, flags);
1343 ha->interrupts_on = 0;
1344 /* disable risc and host interrupts */
1345 WRT_REG_WORD(&reg->ictrl, 0);
1346 RD_REG_WORD(&reg->ictrl);
1347 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1348 }
1349
1350 static void
1351 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1352 {
1353 unsigned long flags = 0;
1354 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1355
1356 spin_lock_irqsave(&ha->hardware_lock, flags);
1357 ha->interrupts_on = 1;
1358 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1359 RD_REG_DWORD(&reg->ictrl);
1360 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1361 }
1362
1363 static void
1364 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1365 {
1366 unsigned long flags = 0;
1367 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1368
1369 spin_lock_irqsave(&ha->hardware_lock, flags);
1370 ha->interrupts_on = 0;
1371 WRT_REG_DWORD(&reg->ictrl, 0);
1372 RD_REG_DWORD(&reg->ictrl);
1373 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1374 }
1375
1376 static void
1377 qla2xxx_scan_start(struct Scsi_Host *shost)
1378 {
1379 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1380
1381 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1382 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1383 set_bit(RSCN_UPDATE, &ha->dpc_flags);
1384 }
1385
1386 static int
1387 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1388 {
1389 scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
1390
1391 if (!ha->host)
1392 return 1;
1393 if (time > ha->loop_reset_delay * HZ)
1394 return 1;
1395
1396 return atomic_read(&ha->loop_state) == LOOP_READY;
1397 }
1398
1399 /*
1400 * PCI driver interface
1401 */
1402 static int __devinit
1403 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1404 {
1405 int ret = -ENODEV;
1406 device_reg_t __iomem *reg;
1407 struct Scsi_Host *host;
1408 scsi_qla_host_t *ha;
1409 unsigned long flags = 0;
1410 char pci_info[20];
1411 char fw_str[30];
1412 struct scsi_host_template *sht;
1413
1414 if (pci_enable_device(pdev))
1415 goto probe_out;
1416
1417 sht = &qla2x00_driver_template;
1418 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1419 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1420 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1421 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432)
1422 sht = &qla24xx_driver_template;
1423 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1424 if (host == NULL) {
1425 printk(KERN_WARNING
1426 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1427 goto probe_disable_device;
1428 }
1429
1430 /* Clear our data area */
1431 ha = (scsi_qla_host_t *)host->hostdata;
1432 memset(ha, 0, sizeof(scsi_qla_host_t));
1433
1434 ha->pdev = pdev;
1435 ha->host = host;
1436 ha->host_no = host->host_no;
1437 sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1438
1439 /* Set ISP-type information. */
1440 qla2x00_set_isp_flags(ha);
1441
1442 /* Configure PCI I/O space */
1443 ret = qla2x00_iospace_config(ha);
1444 if (ret)
1445 goto probe_failed;
1446
1447 qla_printk(KERN_INFO, ha,
1448 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1449 ha->iobase);
1450
1451 spin_lock_init(&ha->hardware_lock);
1452
1453 ha->prev_topology = 0;
1454 ha->init_cb_size = sizeof(init_cb_t);
1455 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1456 ha->link_data_rate = PORT_SPEED_UNKNOWN;
1457 ha->optrom_size = OPTROM_SIZE_2300;
1458
1459 ha->max_q_depth = MAX_Q_DEPTH;
1460 if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1461 ha->max_q_depth = ql2xmaxqdepth;
1462
1463 /* Assign ISP specific operations. */
1464 ha->isp_ops.pci_config = qla2100_pci_config;
1465 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1466 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1467 ha->isp_ops.config_rings = qla2x00_config_rings;
1468 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1469 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1470 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1471 ha->isp_ops.load_risc = qla2x00_load_risc;
1472 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1473 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1474 ha->isp_ops.intr_handler = qla2100_intr_handler;
1475 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1476 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1477 ha->isp_ops.abort_command = qla2x00_abort_command;
1478 ha->isp_ops.abort_target = qla2x00_abort_target;
1479 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1480 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1481 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1482 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1483 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1484 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1485 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1486 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1487 ha->isp_ops.fw_dump = qla2100_fw_dump;
1488 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1489 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1490 ha->isp_ops.get_flash_version = qla2x00_get_flash_version;
1491 if (IS_QLA2100(ha)) {
1492 host->max_id = MAX_TARGETS_2100;
1493 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1494 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1495 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1496 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1497 host->sg_tablesize = 32;
1498 ha->gid_list_info_size = 4;
1499 } else if (IS_QLA2200(ha)) {
1500 host->max_id = MAX_TARGETS_2200;
1501 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1502 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1503 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1504 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1505 ha->gid_list_info_size = 4;
1506 } else if (IS_QLA23XX(ha)) {
1507 host->max_id = MAX_TARGETS_2200;
1508 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1509 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1510 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1511 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1512 ha->isp_ops.pci_config = qla2300_pci_config;
1513 ha->isp_ops.intr_handler = qla2300_intr_handler;
1514 ha->isp_ops.fw_dump = qla2300_fw_dump;
1515 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1516 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1517 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1518 ha->gid_list_info_size = 6;
1519 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1520 ha->optrom_size = OPTROM_SIZE_2322;
1521 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1522 host->max_id = MAX_TARGETS_2200;
1523 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1524 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1525 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1526 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1527 ha->init_cb_size = sizeof(struct init_cb_24xx);
1528 ha->mgmt_svr_loop_id = 10;
1529 ha->isp_ops.pci_config = qla24xx_pci_config;
1530 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1531 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1532 ha->isp_ops.config_rings = qla24xx_config_rings;
1533 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1534 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1535 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1536 ha->isp_ops.load_risc = qla24xx_load_risc;
1537 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1538 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1539 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1540 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1541 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1542 ha->isp_ops.abort_command = qla24xx_abort_command;
1543 ha->isp_ops.abort_target = qla24xx_abort_target;
1544 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1545 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1546 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1547 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1548 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1549 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1550 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1551 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1552 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1553 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1554 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1555 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1556 ha->isp_ops.get_flash_version = qla24xx_get_flash_version;
1557 ha->gid_list_info_size = 8;
1558 ha->optrom_size = OPTROM_SIZE_24XX;
1559 }
1560 host->can_queue = ha->request_q_length + 128;
1561
1562 /* load the F/W, read paramaters, and init the H/W */
1563 ha->instance = num_hosts;
1564
1565 init_MUTEX(&ha->mbx_cmd_sem);
1566 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1567
1568 INIT_LIST_HEAD(&ha->list);
1569 INIT_LIST_HEAD(&ha->fcports);
1570
1571 qla2x00_config_dma_addressing(ha);
1572 if (qla2x00_mem_alloc(ha)) {
1573 qla_printk(KERN_WARNING, ha,
1574 "[ERROR] Failed to allocate memory for adapter\n");
1575
1576 ret = -ENOMEM;
1577 goto probe_failed;
1578 }
1579
1580 if (qla2x00_initialize_adapter(ha)) {
1581 qla_printk(KERN_WARNING, ha,
1582 "Failed to initialize adapter\n");
1583
1584 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1585 "Adapter flags %x.\n",
1586 ha->host_no, ha->device_flags));
1587
1588 ret = -ENODEV;
1589 goto probe_failed;
1590 }
1591
1592 /*
1593 * Startup the kernel thread for this host adapter
1594 */
1595 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1596 "%s_dpc", ha->host_str);
1597 if (IS_ERR(ha->dpc_thread)) {
1598 qla_printk(KERN_WARNING, ha,
1599 "Unable to start DPC thread!\n");
1600 ret = PTR_ERR(ha->dpc_thread);
1601 goto probe_failed;
1602 }
1603
1604 host->this_id = 255;
1605 host->cmd_per_lun = 3;
1606 host->unique_id = ha->instance;
1607 host->max_cmd_len = MAX_CMDSZ;
1608 host->max_channel = MAX_BUSES - 1;
1609 host->max_lun = MAX_LUNS;
1610 host->transportt = qla2xxx_transport_template;
1611
1612 ret = qla2x00_request_irqs(ha);
1613 if (ret)
1614 goto probe_failed;
1615
1616 /* Initialized the timer */
1617 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1618
1619 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1620 ha->host_no, ha));
1621
1622 ha->isp_ops.disable_intrs(ha);
1623
1624 spin_lock_irqsave(&ha->hardware_lock, flags);
1625 reg = ha->iobase;
1626 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1627 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1628 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1629 } else {
1630 WRT_REG_WORD(&reg->isp.semaphore, 0);
1631 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1632 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1633
1634 /* Enable proper parity */
1635 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1636 if (IS_QLA2300(ha))
1637 /* SRAM parity */
1638 WRT_REG_WORD(&reg->isp.hccr,
1639 (HCCR_ENABLE_PARITY + 0x1));
1640 else
1641 /* SRAM, Instruction RAM and GP RAM parity */
1642 WRT_REG_WORD(&reg->isp.hccr,
1643 (HCCR_ENABLE_PARITY + 0x7));
1644 }
1645 }
1646 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1647
1648 ha->isp_ops.enable_intrs(ha);
1649
1650 pci_set_drvdata(pdev, ha);
1651
1652 ha->flags.init_done = 1;
1653 ha->flags.online = 1;
1654
1655 num_hosts++;
1656
1657 ret = scsi_add_host(host, &pdev->dev);
1658 if (ret)
1659 goto probe_failed;
1660
1661 scsi_scan_host(host);
1662
1663 qla2x00_alloc_sysfs_attr(ha);
1664
1665 qla2x00_init_host_attr(ha);
1666
1667 qla_printk(KERN_INFO, ha, "\n"
1668 " QLogic Fibre Channel HBA Driver: %s\n"
1669 " QLogic %s - %s\n"
1670 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1671 qla2x00_version_str, ha->model_number,
1672 ha->model_desc ? ha->model_desc: "", pdev->device,
1673 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1674 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1675 ha->isp_ops.fw_version_str(ha, fw_str));
1676
1677 return 0;
1678
1679 probe_failed:
1680 qla2x00_free_device(ha);
1681
1682 scsi_host_put(host);
1683
1684 probe_disable_device:
1685 pci_disable_device(pdev);
1686
1687 probe_out:
1688 return ret;
1689 }
1690
1691 static void __devexit
1692 qla2x00_remove_one(struct pci_dev *pdev)
1693 {
1694 scsi_qla_host_t *ha;
1695
1696 ha = pci_get_drvdata(pdev);
1697
1698 qla2x00_free_sysfs_attr(ha);
1699
1700 fc_remove_host(ha->host);
1701
1702 scsi_remove_host(ha->host);
1703
1704 qla2x00_free_device(ha);
1705
1706 scsi_host_put(ha->host);
1707
1708 pci_disable_device(pdev);
1709 pci_set_drvdata(pdev, NULL);
1710 }
1711
1712 static void
1713 qla2x00_free_device(scsi_qla_host_t *ha)
1714 {
1715 /* Disable timer */
1716 if (ha->timer_active)
1717 qla2x00_stop_timer(ha);
1718
1719 /* Kill the kernel thread for this host */
1720 if (ha->dpc_thread) {
1721 struct task_struct *t = ha->dpc_thread;
1722
1723 /*
1724 * qla2xxx_wake_dpc checks for ->dpc_thread
1725 * so we need to zero it out.
1726 */
1727 ha->dpc_thread = NULL;
1728 kthread_stop(t);
1729 }
1730
1731 if (ha->eft)
1732 qla2x00_trace_control(ha, TC_DISABLE, 0, 0);
1733
1734 ha->flags.online = 0;
1735
1736 /* Stop currently executing firmware. */
1737 qla2x00_try_to_stop_firmware(ha);
1738
1739 /* turn-off interrupts on the card */
1740 if (ha->interrupts_on)
1741 ha->isp_ops.disable_intrs(ha);
1742
1743 qla2x00_mem_free(ha);
1744
1745 qla2x00_free_irqs(ha);
1746
1747 /* release io space registers */
1748 if (ha->iobase)
1749 iounmap(ha->iobase);
1750 pci_release_regions(ha->pdev);
1751 }
1752
1753 static inline void
1754 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1755 int defer)
1756 {
1757 unsigned long flags;
1758 struct fc_rport *rport;
1759
1760 if (!fcport->rport)
1761 return;
1762
1763 rport = fcport->rport;
1764 if (defer) {
1765 spin_lock_irqsave(&fcport->rport_lock, flags);
1766 fcport->drport = rport;
1767 fcport->rport = NULL;
1768 *(fc_port_t **)rport->dd_data = NULL;
1769 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1770 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1771 } else {
1772 spin_lock_irqsave(&fcport->rport_lock, flags);
1773 fcport->rport = NULL;
1774 *(fc_port_t **)rport->dd_data = NULL;
1775 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1776 fc_remote_port_delete(rport);
1777 }
1778 }
1779
1780 /*
1781 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1782 *
1783 * Input: ha = adapter block pointer. fcport = port structure pointer.
1784 *
1785 * Return: None.
1786 *
1787 * Context:
1788 */
1789 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1790 int do_login, int defer)
1791 {
1792 if (atomic_read(&fcport->state) == FCS_ONLINE)
1793 qla2x00_schedule_rport_del(ha, fcport, defer);
1794
1795 /*
1796 * We may need to retry the login, so don't change the state of the
1797 * port but do the retries.
1798 */
1799 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1800 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1801
1802 if (!do_login)
1803 return;
1804
1805 if (fcport->login_retry == 0) {
1806 fcport->login_retry = ha->login_retry_count;
1807 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1808
1809 DEBUG(printk("scsi(%ld): Port login retry: "
1810 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1811 "id = 0x%04x retry cnt=%d\n",
1812 ha->host_no,
1813 fcport->port_name[0],
1814 fcport->port_name[1],
1815 fcport->port_name[2],
1816 fcport->port_name[3],
1817 fcport->port_name[4],
1818 fcport->port_name[5],
1819 fcport->port_name[6],
1820 fcport->port_name[7],
1821 fcport->loop_id,
1822 fcport->login_retry));
1823 }
1824 }
1825
1826 /*
1827 * qla2x00_mark_all_devices_lost
1828 * Updates fcport state when device goes offline.
1829 *
1830 * Input:
1831 * ha = adapter block pointer.
1832 * fcport = port structure pointer.
1833 *
1834 * Return:
1835 * None.
1836 *
1837 * Context:
1838 */
1839 void
1840 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1841 {
1842 fc_port_t *fcport;
1843
1844 list_for_each_entry(fcport, &ha->fcports, list) {
1845 if (fcport->port_type != FCT_TARGET)
1846 continue;
1847
1848 /*
1849 * No point in marking the device as lost, if the device is
1850 * already DEAD.
1851 */
1852 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1853 continue;
1854 if (atomic_read(&fcport->state) == FCS_ONLINE)
1855 qla2x00_schedule_rport_del(ha, fcport, defer);
1856 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1857 }
1858
1859 if (defer)
1860 qla2xxx_wake_dpc(ha);
1861 }
1862
1863 /*
1864 * qla2x00_mem_alloc
1865 * Allocates adapter memory.
1866 *
1867 * Returns:
1868 * 0 = success.
1869 * 1 = failure.
1870 */
1871 static uint8_t
1872 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1873 {
1874 char name[16];
1875 uint8_t status = 1;
1876 int retry= 10;
1877
1878 do {
1879 /*
1880 * This will loop only once if everything goes well, else some
1881 * number of retries will be performed to get around a kernel
1882 * bug where available mem is not allocated until after a
1883 * little delay and a retry.
1884 */
1885 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1886 (ha->request_q_length + 1) * sizeof(request_t),
1887 &ha->request_dma, GFP_KERNEL);
1888 if (ha->request_ring == NULL) {
1889 qla_printk(KERN_WARNING, ha,
1890 "Memory Allocation failed - request_ring\n");
1891
1892 qla2x00_mem_free(ha);
1893 msleep(100);
1894
1895 continue;
1896 }
1897
1898 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1899 (ha->response_q_length + 1) * sizeof(response_t),
1900 &ha->response_dma, GFP_KERNEL);
1901 if (ha->response_ring == NULL) {
1902 qla_printk(KERN_WARNING, ha,
1903 "Memory Allocation failed - response_ring\n");
1904
1905 qla2x00_mem_free(ha);
1906 msleep(100);
1907
1908 continue;
1909 }
1910
1911 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1912 &ha->gid_list_dma, GFP_KERNEL);
1913 if (ha->gid_list == NULL) {
1914 qla_printk(KERN_WARNING, ha,
1915 "Memory Allocation failed - gid_list\n");
1916
1917 qla2x00_mem_free(ha);
1918 msleep(100);
1919
1920 continue;
1921 }
1922
1923 snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1924 ha->host_no);
1925 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1926 DMA_POOL_SIZE, 8, 0);
1927 if (ha->s_dma_pool == NULL) {
1928 qla_printk(KERN_WARNING, ha,
1929 "Memory Allocation failed - s_dma_pool\n");
1930
1931 qla2x00_mem_free(ha);
1932 msleep(100);
1933
1934 continue;
1935 }
1936
1937 /* get consistent memory allocated for init control block */
1938 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1939 &ha->init_cb_dma);
1940 if (ha->init_cb == NULL) {
1941 qla_printk(KERN_WARNING, ha,
1942 "Memory Allocation failed - init_cb\n");
1943
1944 qla2x00_mem_free(ha);
1945 msleep(100);
1946
1947 continue;
1948 }
1949 memset(ha->init_cb, 0, ha->init_cb_size);
1950
1951 if (qla2x00_allocate_sp_pool(ha)) {
1952 qla_printk(KERN_WARNING, ha,
1953 "Memory Allocation failed - "
1954 "qla2x00_allocate_sp_pool()\n");
1955
1956 qla2x00_mem_free(ha);
1957 msleep(100);
1958
1959 continue;
1960 }
1961
1962 /* Allocate memory for SNS commands */
1963 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1964 /* Get consistent memory allocated for SNS commands */
1965 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1966 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1967 GFP_KERNEL);
1968 if (ha->sns_cmd == NULL) {
1969 /* error */
1970 qla_printk(KERN_WARNING, ha,
1971 "Memory Allocation failed - sns_cmd\n");
1972
1973 qla2x00_mem_free(ha);
1974 msleep(100);
1975
1976 continue;
1977 }
1978 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1979 } else {
1980 /* Get consistent memory allocated for MS IOCB */
1981 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1982 &ha->ms_iocb_dma);
1983 if (ha->ms_iocb == NULL) {
1984 /* error */
1985 qla_printk(KERN_WARNING, ha,
1986 "Memory Allocation failed - ms_iocb\n");
1987
1988 qla2x00_mem_free(ha);
1989 msleep(100);
1990
1991 continue;
1992 }
1993 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1994
1995 /*
1996 * Get consistent memory allocated for CT SNS
1997 * commands
1998 */
1999 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2000 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
2001 GFP_KERNEL);
2002 if (ha->ct_sns == NULL) {
2003 /* error */
2004 qla_printk(KERN_WARNING, ha,
2005 "Memory Allocation failed - ct_sns\n");
2006
2007 qla2x00_mem_free(ha);
2008 msleep(100);
2009
2010 continue;
2011 }
2012 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2013
2014 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2015 /*
2016 * Get consistent memory allocated for SFP
2017 * block.
2018 */
2019 ha->sfp_data = dma_pool_alloc(ha->s_dma_pool,
2020 GFP_KERNEL, &ha->sfp_data_dma);
2021 if (ha->sfp_data == NULL) {
2022 qla_printk(KERN_WARNING, ha,
2023 "Memory Allocation failed - "
2024 "sfp_data\n");
2025
2026 qla2x00_mem_free(ha);
2027 msleep(100);
2028
2029 continue;
2030 }
2031 memset(ha->sfp_data, 0, SFP_BLOCK_SIZE);
2032 }
2033 }
2034
2035 /* Done all allocations without any error. */
2036 status = 0;
2037
2038 } while (retry-- && status != 0);
2039
2040 if (status) {
2041 printk(KERN_WARNING
2042 "%s(): **** FAILED ****\n", __func__);
2043 }
2044
2045 return(status);
2046 }
2047
2048 /*
2049 * qla2x00_mem_free
2050 * Frees all adapter allocated memory.
2051 *
2052 * Input:
2053 * ha = adapter block pointer.
2054 */
2055 static void
2056 qla2x00_mem_free(scsi_qla_host_t *ha)
2057 {
2058 struct list_head *fcpl, *fcptemp;
2059 fc_port_t *fcport;
2060
2061 if (ha == NULL) {
2062 /* error */
2063 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2064 return;
2065 }
2066
2067 /* free sp pool */
2068 qla2x00_free_sp_pool(ha);
2069
2070 if (ha->fw_dump) {
2071 if (ha->eft)
2072 dma_free_coherent(&ha->pdev->dev,
2073 ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2074 vfree(ha->fw_dump);
2075 }
2076
2077 if (ha->sns_cmd)
2078 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2079 ha->sns_cmd, ha->sns_cmd_dma);
2080
2081 if (ha->ct_sns)
2082 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2083 ha->ct_sns, ha->ct_sns_dma);
2084
2085 if (ha->sfp_data)
2086 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2087
2088 if (ha->ms_iocb)
2089 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2090
2091 if (ha->init_cb)
2092 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2093
2094 if (ha->s_dma_pool)
2095 dma_pool_destroy(ha->s_dma_pool);
2096
2097 if (ha->gid_list)
2098 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2099 ha->gid_list_dma);
2100
2101 if (ha->response_ring)
2102 dma_free_coherent(&ha->pdev->dev,
2103 (ha->response_q_length + 1) * sizeof(response_t),
2104 ha->response_ring, ha->response_dma);
2105
2106 if (ha->request_ring)
2107 dma_free_coherent(&ha->pdev->dev,
2108 (ha->request_q_length + 1) * sizeof(request_t),
2109 ha->request_ring, ha->request_dma);
2110
2111 ha->eft = NULL;
2112 ha->eft_dma = 0;
2113 ha->sns_cmd = NULL;
2114 ha->sns_cmd_dma = 0;
2115 ha->ct_sns = NULL;
2116 ha->ct_sns_dma = 0;
2117 ha->ms_iocb = NULL;
2118 ha->ms_iocb_dma = 0;
2119 ha->init_cb = NULL;
2120 ha->init_cb_dma = 0;
2121
2122 ha->s_dma_pool = NULL;
2123
2124 ha->gid_list = NULL;
2125 ha->gid_list_dma = 0;
2126
2127 ha->response_ring = NULL;
2128 ha->response_dma = 0;
2129 ha->request_ring = NULL;
2130 ha->request_dma = 0;
2131
2132 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2133 fcport = list_entry(fcpl, fc_port_t, list);
2134
2135 /* fc ports */
2136 list_del_init(&fcport->list);
2137 kfree(fcport);
2138 }
2139 INIT_LIST_HEAD(&ha->fcports);
2140
2141 ha->fw_dump = NULL;
2142 ha->fw_dumped = 0;
2143 ha->fw_dump_reading = 0;
2144
2145 vfree(ha->optrom_buffer);
2146 }
2147
2148 /*
2149 * qla2x00_allocate_sp_pool
2150 * This routine is called during initialization to allocate
2151 * memory for local srb_t.
2152 *
2153 * Input:
2154 * ha = adapter block pointer.
2155 *
2156 * Context:
2157 * Kernel context.
2158 */
2159 static int
2160 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2161 {
2162 int rval;
2163
2164 rval = QLA_SUCCESS;
2165 ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
2166 if (ha->srb_mempool == NULL) {
2167 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2168 rval = QLA_FUNCTION_FAILED;
2169 }
2170 return (rval);
2171 }
2172
2173 /*
2174 * This routine frees all adapter allocated memory.
2175 *
2176 */
2177 static void
2178 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2179 {
2180 if (ha->srb_mempool) {
2181 mempool_destroy(ha->srb_mempool);
2182 ha->srb_mempool = NULL;
2183 }
2184 }
2185
2186 /**************************************************************************
2187 * qla2x00_do_dpc
2188 * This kernel thread is a task that is schedule by the interrupt handler
2189 * to perform the background processing for interrupts.
2190 *
2191 * Notes:
2192 * This task always run in the context of a kernel thread. It
2193 * is kick-off by the driver's detect code and starts up
2194 * up one per adapter. It immediately goes to sleep and waits for
2195 * some fibre event. When either the interrupt handler or
2196 * the timer routine detects a event it will one of the task
2197 * bits then wake us up.
2198 **************************************************************************/
2199 static int
2200 qla2x00_do_dpc(void *data)
2201 {
2202 scsi_qla_host_t *ha;
2203 fc_port_t *fcport;
2204 uint8_t status;
2205 uint16_t next_loopid;
2206
2207 ha = (scsi_qla_host_t *)data;
2208
2209 set_user_nice(current, -20);
2210
2211 while (!kthread_should_stop()) {
2212 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2213
2214 set_current_state(TASK_INTERRUPTIBLE);
2215 schedule();
2216 __set_current_state(TASK_RUNNING);
2217
2218 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2219
2220 /* Initialization not yet finished. Don't do anything yet. */
2221 if (!ha->flags.init_done)
2222 continue;
2223
2224 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2225
2226 ha->dpc_active = 1;
2227
2228 if (ha->flags.mbox_busy) {
2229 ha->dpc_active = 0;
2230 continue;
2231 }
2232
2233 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2234
2235 DEBUG(printk("scsi(%ld): dpc: sched "
2236 "qla2x00_abort_isp ha = %p\n",
2237 ha->host_no, ha));
2238 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2239 &ha->dpc_flags))) {
2240
2241 if (qla2x00_abort_isp(ha)) {
2242 /* failed. retry later */
2243 set_bit(ISP_ABORT_NEEDED,
2244 &ha->dpc_flags);
2245 }
2246 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2247 }
2248 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2249 ha->host_no));
2250 }
2251
2252 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2253 qla2x00_update_fcports(ha);
2254
2255 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2256 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2257 ha->host_no));
2258 qla2x00_loop_reset(ha);
2259 }
2260
2261 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2262 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2263
2264 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2265 ha->host_no));
2266
2267 qla2x00_rst_aen(ha);
2268 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2269 }
2270
2271 /* Retry each device up to login retry count */
2272 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2273 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2274 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2275
2276 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2277 ha->host_no));
2278
2279 next_loopid = 0;
2280 list_for_each_entry(fcport, &ha->fcports, list) {
2281 /*
2282 * If the port is not ONLINE then try to login
2283 * to it if we haven't run out of retries.
2284 */
2285 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2286 fcport->login_retry) {
2287
2288 fcport->login_retry--;
2289 if (fcport->flags & FCF_FABRIC_DEVICE) {
2290 if (fcport->flags &
2291 FCF_TAPE_PRESENT)
2292 ha->isp_ops.fabric_logout(
2293 ha, fcport->loop_id,
2294 fcport->d_id.b.domain,
2295 fcport->d_id.b.area,
2296 fcport->d_id.b.al_pa);
2297 status = qla2x00_fabric_login(
2298 ha, fcport, &next_loopid);
2299 } else
2300 status =
2301 qla2x00_local_device_login(
2302 ha, fcport);
2303
2304 if (status == QLA_SUCCESS) {
2305 fcport->old_loop_id = fcport->loop_id;
2306
2307 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2308 ha->host_no, fcport->loop_id));
2309
2310 qla2x00_update_fcport(ha,
2311 fcport);
2312 } else if (status == 1) {
2313 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2314 /* retry the login again */
2315 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2316 ha->host_no,
2317 fcport->login_retry, fcport->loop_id));
2318 } else {
2319 fcport->login_retry = 0;
2320 }
2321 }
2322 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2323 break;
2324 }
2325 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2326 ha->host_no));
2327 }
2328
2329 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2330 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2331
2332 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2333 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2334 ha->host_no));
2335
2336 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2337
2338 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2339 ha->host_no));
2340 }
2341
2342 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2343
2344 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2345 ha->host_no));
2346
2347 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2348 &ha->dpc_flags))) {
2349
2350 qla2x00_loop_resync(ha);
2351
2352 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2353 }
2354
2355 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2356 ha->host_no));
2357 }
2358
2359 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2360
2361 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2362 ha->host_no));
2363
2364 qla2x00_rescan_fcports(ha);
2365
2366 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2367 "end.\n",
2368 ha->host_no));
2369 }
2370
2371 if (!ha->interrupts_on)
2372 ha->isp_ops.enable_intrs(ha);
2373
2374 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2375 ha->isp_ops.beacon_blink(ha);
2376
2377 ha->dpc_active = 0;
2378 } /* End of while(1) */
2379
2380 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2381
2382 /*
2383 * Make sure that nobody tries to wake us up again.
2384 */
2385 ha->dpc_active = 0;
2386
2387 return 0;
2388 }
2389
2390 void
2391 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2392 {
2393 if (ha->dpc_thread)
2394 wake_up_process(ha->dpc_thread);
2395 }
2396
2397 /*
2398 * qla2x00_rst_aen
2399 * Processes asynchronous reset.
2400 *
2401 * Input:
2402 * ha = adapter block pointer.
2403 */
2404 static void
2405 qla2x00_rst_aen(scsi_qla_host_t *ha)
2406 {
2407 if (ha->flags.online && !ha->flags.reset_active &&
2408 !atomic_read(&ha->loop_down_timer) &&
2409 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2410 do {
2411 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2412
2413 /*
2414 * Issue marker command only when we are going to start
2415 * the I/O.
2416 */
2417 ha->marker_needed = 1;
2418 } while (!atomic_read(&ha->loop_down_timer) &&
2419 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2420 }
2421 }
2422
2423 static void
2424 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2425 {
2426 struct scsi_cmnd *cmd = sp->cmd;
2427
2428 if (sp->flags & SRB_DMA_VALID) {
2429 if (cmd->use_sg) {
2430 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2431 cmd->use_sg, cmd->sc_data_direction);
2432 } else if (cmd->request_bufflen) {
2433 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2434 cmd->request_bufflen, cmd->sc_data_direction);
2435 }
2436 sp->flags &= ~SRB_DMA_VALID;
2437 }
2438 CMD_SP(cmd) = NULL;
2439 }
2440
2441 void
2442 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2443 {
2444 struct scsi_cmnd *cmd = sp->cmd;
2445
2446 qla2x00_sp_free_dma(ha, sp);
2447
2448 mempool_free(sp, ha->srb_mempool);
2449
2450 cmd->scsi_done(cmd);
2451 }
2452
2453 /**************************************************************************
2454 * qla2x00_timer
2455 *
2456 * Description:
2457 * One second timer
2458 *
2459 * Context: Interrupt
2460 ***************************************************************************/
2461 static void
2462 qla2x00_timer(scsi_qla_host_t *ha)
2463 {
2464 unsigned long cpu_flags = 0;
2465 fc_port_t *fcport;
2466 int start_dpc = 0;
2467 int index;
2468 srb_t *sp;
2469 int t;
2470
2471 /*
2472 * Ports - Port down timer.
2473 *
2474 * Whenever, a port is in the LOST state we start decrementing its port
2475 * down timer every second until it reaches zero. Once it reaches zero
2476 * the port it marked DEAD.
2477 */
2478 t = 0;
2479 list_for_each_entry(fcport, &ha->fcports, list) {
2480 if (fcport->port_type != FCT_TARGET)
2481 continue;
2482
2483 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2484
2485 if (atomic_read(&fcport->port_down_timer) == 0)
2486 continue;
2487
2488 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2489 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2490
2491 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2492 "%d remaining\n",
2493 ha->host_no,
2494 t, atomic_read(&fcport->port_down_timer)));
2495 }
2496 t++;
2497 } /* End of for fcport */
2498
2499
2500 /* Loop down handler. */
2501 if (atomic_read(&ha->loop_down_timer) > 0 &&
2502 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2503
2504 if (atomic_read(&ha->loop_down_timer) ==
2505 ha->loop_down_abort_time) {
2506
2507 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2508 "queues before time expire\n",
2509 ha->host_no));
2510
2511 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2512 atomic_set(&ha->loop_state, LOOP_DEAD);
2513
2514 /* Schedule an ISP abort to return any tape commands. */
2515 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2516 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2517 index++) {
2518 fc_port_t *sfcp;
2519
2520 sp = ha->outstanding_cmds[index];
2521 if (!sp)
2522 continue;
2523 sfcp = sp->fcport;
2524 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2525 continue;
2526
2527 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2528 break;
2529 }
2530 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2531
2532 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2533 start_dpc++;
2534 }
2535
2536 /* if the loop has been down for 4 minutes, reinit adapter */
2537 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2538 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2539 "restarting queues.\n",
2540 ha->host_no));
2541
2542 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2543 start_dpc++;
2544
2545 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2546 DEBUG(printk("scsi(%ld): Loop down - "
2547 "aborting ISP.\n",
2548 ha->host_no));
2549 qla_printk(KERN_WARNING, ha,
2550 "Loop down - aborting ISP.\n");
2551
2552 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2553 }
2554 }
2555 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2556 ha->host_no,
2557 atomic_read(&ha->loop_down_timer)));
2558 }
2559
2560 /* Check if beacon LED needs to be blinked */
2561 if (ha->beacon_blink_led == 1) {
2562 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2563 start_dpc++;
2564 }
2565
2566 /* Schedule the DPC routine if needed */
2567 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2568 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2569 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2570 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2571 start_dpc ||
2572 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2573 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2574 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2575 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2576 qla2xxx_wake_dpc(ha);
2577
2578 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2579 }
2580
2581 /* XXX(hch): crude hack to emulate a down_timeout() */
2582 int
2583 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2584 {
2585 const unsigned int step = 100; /* msecs */
2586 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2587
2588 do {
2589 if (!down_trylock(sema))
2590 return 0;
2591 if (msleep_interruptible(step))
2592 break;
2593 } while (--iterations > 0);
2594
2595 return -ETIMEDOUT;
2596 }
2597
2598 /* Firmware interface routines. */
2599
2600 #define FW_BLOBS 5
2601 #define FW_ISP21XX 0
2602 #define FW_ISP22XX 1
2603 #define FW_ISP2300 2
2604 #define FW_ISP2322 3
2605 #define FW_ISP24XX 4
2606
2607 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2608 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2609 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2610 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2611 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2612
2613 static DECLARE_MUTEX(qla_fw_lock);
2614
2615 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2616 { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2617 { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2618 { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2619 { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2620 { .name = FW_FILE_ISP24XX, },
2621 };
2622
2623 struct fw_blob *
2624 qla2x00_request_firmware(scsi_qla_host_t *ha)
2625 {
2626 struct fw_blob *blob;
2627
2628 blob = NULL;
2629 if (IS_QLA2100(ha)) {
2630 blob = &qla_fw_blobs[FW_ISP21XX];
2631 } else if (IS_QLA2200(ha)) {
2632 blob = &qla_fw_blobs[FW_ISP22XX];
2633 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2634 blob = &qla_fw_blobs[FW_ISP2300];
2635 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2636 blob = &qla_fw_blobs[FW_ISP2322];
2637 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2638 blob = &qla_fw_blobs[FW_ISP24XX];
2639 }
2640
2641 down(&qla_fw_lock);
2642 if (blob->fw)
2643 goto out;
2644
2645 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2646 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2647 "(%s).\n", ha->host_no, blob->name));
2648 blob->fw = NULL;
2649 blob = NULL;
2650 goto out;
2651 }
2652
2653 out:
2654 up(&qla_fw_lock);
2655 return blob;
2656 }
2657
2658 static void
2659 qla2x00_release_firmware(void)
2660 {
2661 int idx;
2662
2663 down(&qla_fw_lock);
2664 for (idx = 0; idx < FW_BLOBS; idx++)
2665 if (qla_fw_blobs[idx].fw)
2666 release_firmware(qla_fw_blobs[idx].fw);
2667 up(&qla_fw_lock);
2668 }
2669
2670 static struct pci_device_id qla2xxx_pci_tbl[] = {
2671 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2672 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2673 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2674 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2675 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2676 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2677 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2678 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2679 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2680 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2681 { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2682 { 0 },
2683 };
2684 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2685
2686 static struct pci_driver qla2xxx_pci_driver = {
2687 .name = QLA2XXX_DRIVER_NAME,
2688 .driver = {
2689 .owner = THIS_MODULE,
2690 },
2691 .id_table = qla2xxx_pci_tbl,
2692 .probe = qla2x00_probe_one,
2693 .remove = __devexit_p(qla2x00_remove_one),
2694 };
2695
2696 /**
2697 * qla2x00_module_init - Module initialization.
2698 **/
2699 static int __init
2700 qla2x00_module_init(void)
2701 {
2702 int ret = 0;
2703
2704 /* Allocate cache for SRBs. */
2705 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2706 SLAB_HWCACHE_ALIGN, NULL, NULL);
2707 if (srb_cachep == NULL) {
2708 printk(KERN_ERR
2709 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2710 return -ENOMEM;
2711 }
2712
2713 /* Derive version string. */
2714 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2715 if (ql2xextended_error_logging)
2716 strcat(qla2x00_version_str, "-debug");
2717
2718 qla2xxx_transport_template =
2719 fc_attach_transport(&qla2xxx_transport_functions);
2720 if (!qla2xxx_transport_template)
2721 return -ENODEV;
2722
2723 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2724 ret = pci_register_driver(&qla2xxx_pci_driver);
2725 if (ret) {
2726 kmem_cache_destroy(srb_cachep);
2727 fc_release_transport(qla2xxx_transport_template);
2728 }
2729 return ret;
2730 }
2731
2732 /**
2733 * qla2x00_module_exit - Module cleanup.
2734 **/
2735 static void __exit
2736 qla2x00_module_exit(void)
2737 {
2738 pci_unregister_driver(&qla2xxx_pci_driver);
2739 qla2x00_release_firmware();
2740 kmem_cache_destroy(srb_cachep);
2741 fc_release_transport(qla2xxx_transport_template);
2742 }
2743
2744 module_init(qla2x00_module_init);
2745 module_exit(qla2x00_module_exit);
2746
2747 MODULE_AUTHOR("QLogic Corporation");
2748 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2749 MODULE_LICENSE("GPL");
2750 MODULE_VERSION(QLA2XXX_VERSION);
2751 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2752 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2753 MODULE_FIRMWARE(FW_FILE_ISP2300);
2754 MODULE_FIRMWARE(FW_FILE_ISP2322);
2755 MODULE_FIRMWARE(FW_FILE_ISP24XX);
Tomato firmware and modifications.