?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
[SCSI] qla2xxx: Correct FCAL login retry logic for ISP24xx.
[linux-2.6/openmoko-kernel/knife-kernel.git] / drivers / scsi / qla2xxx / qla_os.c
blob029bbf461bb2d034441b03dfd4caff95186627d6
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 kmem_cache_t *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 = 30;
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 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
58 int ql2xfwloadflash;
59 module_param(ql2xfwloadflash, int, S_IRUGO|S_IRUSR);
60 MODULE_PARM_DESC(ql2xfwloadflash,
61 "Load ISP24xx firmware image from FLASH (onboard memory).");
62 #endif
63
64 static void qla2x00_free_device(scsi_qla_host_t *);
65
66 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
67
68 int ql2xfdmienable;
69 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
70 MODULE_PARM_DESC(ql2xfdmienable,
71 "Enables FDMI registratons "
72 "Default is 0 - no FDMI. 1 - perfom FDMI.");
73
74 int ql2xprocessrscn;
75 module_param(ql2xprocessrscn, int, S_IRUGO|S_IRUSR);
76 MODULE_PARM_DESC(ql2xprocessrscn,
77 "Option to enable port RSCN handling via a series of less"
78 "fabric intrusive ADISCs and PLOGIs.");
79
80 /*
81 * SCSI host template entry points
82 */
83 static int qla2xxx_slave_configure(struct scsi_device * device);
84 static int qla2xxx_slave_alloc(struct scsi_device *);
85 static void qla2xxx_slave_destroy(struct scsi_device *);
86 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
87 void (*fn)(struct scsi_cmnd *));
88 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
89 void (*fn)(struct scsi_cmnd *));
90 static int qla2xxx_eh_abort(struct scsi_cmnd *);
91 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
92 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
93 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
94 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
95 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
96
97 static int qla2x00_change_queue_depth(struct scsi_device *, int);
98 static int qla2x00_change_queue_type(struct scsi_device *, int);
99
100 static struct scsi_host_template qla2x00_driver_template = {
101 .module = THIS_MODULE,
102 .name = "qla2xxx",
103 .queuecommand = qla2x00_queuecommand,
104
105 .eh_abort_handler = qla2xxx_eh_abort,
106 .eh_device_reset_handler = qla2xxx_eh_device_reset,
107 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
108 .eh_host_reset_handler = qla2xxx_eh_host_reset,
109
110 .slave_configure = qla2xxx_slave_configure,
111
112 .slave_alloc = qla2xxx_slave_alloc,
113 .slave_destroy = qla2xxx_slave_destroy,
114 .change_queue_depth = qla2x00_change_queue_depth,
115 .change_queue_type = qla2x00_change_queue_type,
116 .this_id = -1,
117 .cmd_per_lun = 3,
118 .use_clustering = ENABLE_CLUSTERING,
119 .sg_tablesize = SG_ALL,
120
121 /*
122 * The RISC allows for each command to transfer (2^32-1) bytes of data,
123 * which equates to 0x800000 sectors.
124 */
125 .max_sectors = 0xFFFF,
126 .shost_attrs = qla2x00_host_attrs,
127 };
128
129 static struct scsi_host_template qla24xx_driver_template = {
130 .module = THIS_MODULE,
131 .name = "qla2xxx",
132 .queuecommand = qla24xx_queuecommand,
133
134 .eh_abort_handler = qla2xxx_eh_abort,
135 .eh_device_reset_handler = qla2xxx_eh_device_reset,
136 .eh_bus_reset_handler = qla2xxx_eh_bus_reset,
137 .eh_host_reset_handler = qla2xxx_eh_host_reset,
138
139 .slave_configure = qla2xxx_slave_configure,
140
141 .slave_alloc = qla2xxx_slave_alloc,
142 .slave_destroy = qla2xxx_slave_destroy,
143 .change_queue_depth = qla2x00_change_queue_depth,
144 .change_queue_type = qla2x00_change_queue_type,
145 .this_id = -1,
146 .cmd_per_lun = 3,
147 .use_clustering = ENABLE_CLUSTERING,
148 .sg_tablesize = SG_ALL,
149
150 .max_sectors = 0xFFFF,
151 .shost_attrs = qla2x00_host_attrs,
152 };
153
154 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
155
156 /* TODO Convert to inlines
157 *
158 * Timer routines
159 */
160 #define WATCH_INTERVAL 1 /* number of seconds */
161
162 static void qla2x00_timer(scsi_qla_host_t *);
163
164 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
165 void *, unsigned long);
166 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
167 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
168
169 static inline void
170 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
171 {
172 init_timer(&ha->timer);
173 ha->timer.expires = jiffies + interval * HZ;
174 ha->timer.data = (unsigned long)ha;
175 ha->timer.function = (void (*)(unsigned long))func;
176 add_timer(&ha->timer);
177 ha->timer_active = 1;
178 }
179
180 static inline void
181 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
182 {
183 mod_timer(&ha->timer, jiffies + interval * HZ);
184 }
185
186 static __inline__ void
187 qla2x00_stop_timer(scsi_qla_host_t *ha)
188 {
189 del_timer_sync(&ha->timer);
190 ha->timer_active = 0;
191 }
192
193 static int qla2x00_do_dpc(void *data);
194
195 static void qla2x00_rst_aen(scsi_qla_host_t *);
196
197 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
198 static void qla2x00_mem_free(scsi_qla_host_t *ha);
199 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
200 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
201 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
202 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
203
204 /* -------------------------------------------------------------------------- */
205
206 static char *
207 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
208 {
209 static char *pci_bus_modes[] = {
210 "33", "66", "100", "133",
211 };
212 uint16_t pci_bus;
213
214 strcpy(str, "PCI");
215 pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
216 if (pci_bus) {
217 strcat(str, "-X (");
218 strcat(str, pci_bus_modes[pci_bus]);
219 } else {
220 pci_bus = (ha->pci_attr & BIT_8) >> 8;
221 strcat(str, " (");
222 strcat(str, pci_bus_modes[pci_bus]);
223 }
224 strcat(str, " MHz)");
225
226 return (str);
227 }
228
229 static char *
230 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
231 {
232 static char *pci_bus_modes[] = { "33", "66", "100", "133", };
233 uint32_t pci_bus;
234 int pcie_reg;
235
236 pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
237 if (pcie_reg) {
238 char lwstr[6];
239 uint16_t pcie_lstat, lspeed, lwidth;
240
241 pcie_reg += 0x12;
242 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
243 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
244 lwidth = (pcie_lstat &
245 (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
246
247 strcpy(str, "PCIe (");
248 if (lspeed == 1)
249 strcat(str, "2.5Gb/s ");
250 else
251 strcat(str, "<unknown> ");
252 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
253 strcat(str, lwstr);
254
255 return str;
256 }
257
258 strcpy(str, "PCI");
259 pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
260 if (pci_bus == 0 || pci_bus == 8) {
261 strcat(str, " (");
262 strcat(str, pci_bus_modes[pci_bus >> 3]);
263 } else {
264 strcat(str, "-X ");
265 if (pci_bus & BIT_2)
266 strcat(str, "Mode 2");
267 else
268 strcat(str, "Mode 1");
269 strcat(str, " (");
270 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
271 }
272 strcat(str, " MHz)");
273
274 return str;
275 }
276
277 char *
278 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
279 {
280 char un_str[10];
281
282 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
283 ha->fw_minor_version,
284 ha->fw_subminor_version);
285
286 if (ha->fw_attributes & BIT_9) {
287 strcat(str, "FLX");
288 return (str);
289 }
290
291 switch (ha->fw_attributes & 0xFF) {
292 case 0x7:
293 strcat(str, "EF");
294 break;
295 case 0x17:
296 strcat(str, "TP");
297 break;
298 case 0x37:
299 strcat(str, "IP");
300 break;
301 case 0x77:
302 strcat(str, "VI");
303 break;
304 default:
305 sprintf(un_str, "(%x)", ha->fw_attributes);
306 strcat(str, un_str);
307 break;
308 }
309 if (ha->fw_attributes & 0x100)
310 strcat(str, "X");
311
312 return (str);
313 }
314
315 char *
316 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
317 {
318 sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
319 ha->fw_minor_version,
320 ha->fw_subminor_version);
321
322 if (ha->fw_attributes & BIT_0)
323 strcat(str, "[Class 2] ");
324 if (ha->fw_attributes & BIT_1)
325 strcat(str, "[IP] ");
326 if (ha->fw_attributes & BIT_2)
327 strcat(str, "[Multi-ID] ");
328 if (ha->fw_attributes & BIT_13)
329 strcat(str, "[Experimental]");
330 return str;
331 }
332
333 static inline srb_t *
334 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
335 struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
336 {
337 srb_t *sp;
338
339 sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
340 if (!sp)
341 return sp;
342
343 atomic_set(&sp->ref_count, 1);
344 sp->ha = ha;
345 sp->fcport = fcport;
346 sp->cmd = cmd;
347 sp->flags = 0;
348 CMD_SP(cmd) = (void *)sp;
349 cmd->scsi_done = done;
350
351 return sp;
352 }
353
354 static int
355 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
356 {
357 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
358 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
359 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
360 srb_t *sp;
361 int rval;
362
363 rval = fc_remote_port_chkready(rport);
364 if (rval) {
365 cmd->result = rval;
366 goto qc_fail_command;
367 }
368
369 /* Close window on fcport/rport state-transitioning. */
370 if (!*(fc_port_t **)rport->dd_data) {
371 cmd->result = DID_IMM_RETRY << 16;
372 goto qc_fail_command;
373 }
374
375 if (atomic_read(&fcport->state) != FCS_ONLINE) {
376 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
377 atomic_read(&ha->loop_state) == LOOP_DEAD) {
378 cmd->result = DID_NO_CONNECT << 16;
379 goto qc_fail_command;
380 }
381 goto qc_host_busy;
382 }
383
384 spin_unlock_irq(ha->host->host_lock);
385
386 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
387 if (!sp)
388 goto qc_host_busy_lock;
389
390 rval = qla2x00_start_scsi(sp);
391 if (rval != QLA_SUCCESS)
392 goto qc_host_busy_free_sp;
393
394 spin_lock_irq(ha->host->host_lock);
395
396 return 0;
397
398 qc_host_busy_free_sp:
399 qla2x00_sp_free_dma(ha, sp);
400 mempool_free(sp, ha->srb_mempool);
401
402 qc_host_busy_lock:
403 spin_lock_irq(ha->host->host_lock);
404
405 qc_host_busy:
406 return SCSI_MLQUEUE_HOST_BUSY;
407
408 qc_fail_command:
409 done(cmd);
410
411 return 0;
412 }
413
414
415 static int
416 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
417 {
418 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
419 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
420 struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
421 srb_t *sp;
422 int rval;
423
424 rval = fc_remote_port_chkready(rport);
425 if (rval) {
426 cmd->result = rval;
427 goto qc24_fail_command;
428 }
429
430 /* Close window on fcport/rport state-transitioning. */
431 if (!*(fc_port_t **)rport->dd_data) {
432 cmd->result = DID_IMM_RETRY << 16;
433 goto qc24_fail_command;
434 }
435
436 if (atomic_read(&fcport->state) != FCS_ONLINE) {
437 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
438 atomic_read(&ha->loop_state) == LOOP_DEAD) {
439 cmd->result = DID_NO_CONNECT << 16;
440 goto qc24_fail_command;
441 }
442 goto qc24_host_busy;
443 }
444
445 spin_unlock_irq(ha->host->host_lock);
446
447 sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
448 if (!sp)
449 goto qc24_host_busy_lock;
450
451 rval = qla24xx_start_scsi(sp);
452 if (rval != QLA_SUCCESS)
453 goto qc24_host_busy_free_sp;
454
455 spin_lock_irq(ha->host->host_lock);
456
457 return 0;
458
459 qc24_host_busy_free_sp:
460 qla2x00_sp_free_dma(ha, sp);
461 mempool_free(sp, ha->srb_mempool);
462
463 qc24_host_busy_lock:
464 spin_lock_irq(ha->host->host_lock);
465
466 qc24_host_busy:
467 return SCSI_MLQUEUE_HOST_BUSY;
468
469 qc24_fail_command:
470 done(cmd);
471
472 return 0;
473 }
474
475
476 /*
477 * qla2x00_eh_wait_on_command
478 * Waits for the command to be returned by the Firmware for some
479 * max time.
480 *
481 * Input:
482 * ha = actual ha whose done queue will contain the command
483 * returned by firmware.
484 * cmd = Scsi Command to wait on.
485 * flag = Abort/Reset(Bus or Device Reset)
486 *
487 * Return:
488 * Not Found : 0
489 * Found : 1
490 */
491 static int
492 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
493 {
494 #define ABORT_POLLING_PERIOD 1000
495 #define ABORT_WAIT_ITER ((10 * 1000) / (ABORT_POLLING_PERIOD))
496 unsigned long wait_iter = ABORT_WAIT_ITER;
497 int ret = QLA_SUCCESS;
498
499 while (CMD_SP(cmd)) {
500 msleep(ABORT_POLLING_PERIOD);
501
502 if (--wait_iter)
503 break;
504 }
505 if (CMD_SP(cmd))
506 ret = QLA_FUNCTION_FAILED;
507
508 return ret;
509 }
510
511 /*
512 * qla2x00_wait_for_hba_online
513 * Wait till the HBA is online after going through
514 * <= MAX_RETRIES_OF_ISP_ABORT or
515 * finally HBA is disabled ie marked offline
516 *
517 * Input:
518 * ha - pointer to host adapter structure
519 *
520 * Note:
521 * Does context switching-Release SPIN_LOCK
522 * (if any) before calling this routine.
523 *
524 * Return:
525 * Success (Adapter is online) : 0
526 * Failed (Adapter is offline/disabled) : 1
527 */
528 int
529 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
530 {
531 int return_status;
532 unsigned long wait_online;
533
534 wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
535 while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
536 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
537 test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
538 ha->dpc_active) && time_before(jiffies, wait_online)) {
539
540 msleep(1000);
541 }
542 if (ha->flags.online)
543 return_status = QLA_SUCCESS;
544 else
545 return_status = QLA_FUNCTION_FAILED;
546
547 DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
548
549 return (return_status);
550 }
551
552 /*
553 * qla2x00_wait_for_loop_ready
554 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
555 * to be in LOOP_READY state.
556 * Input:
557 * ha - pointer to host adapter structure
558 *
559 * Note:
560 * Does context switching-Release SPIN_LOCK
561 * (if any) before calling this routine.
562 *
563 *
564 * Return:
565 * Success (LOOP_READY) : 0
566 * Failed (LOOP_NOT_READY) : 1
567 */
568 static inline int
569 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
570 {
571 int return_status = QLA_SUCCESS;
572 unsigned long loop_timeout ;
573
574 /* wait for 5 min at the max for loop to be ready */
575 loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
576
577 while ((!atomic_read(&ha->loop_down_timer) &&
578 atomic_read(&ha->loop_state) == LOOP_DOWN) ||
579 atomic_read(&ha->loop_state) != LOOP_READY) {
580 msleep(1000);
581 if (time_after_eq(jiffies, loop_timeout)) {
582 return_status = QLA_FUNCTION_FAILED;
583 break;
584 }
585 }
586 return (return_status);
587 }
588
589 /**************************************************************************
590 * qla2xxx_eh_abort
591 *
592 * Description:
593 * The abort function will abort the specified command.
594 *
595 * Input:
596 * cmd = Linux SCSI command packet to be aborted.
597 *
598 * Returns:
599 * Either SUCCESS or FAILED.
600 *
601 * Note:
602 **************************************************************************/
603 int
604 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
605 {
606 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
607 srb_t *sp;
608 int ret, i;
609 unsigned int id, lun;
610 unsigned long serial;
611 unsigned long flags;
612
613 if (!CMD_SP(cmd))
614 return FAILED;
615
616 ret = FAILED;
617
618 id = cmd->device->id;
619 lun = cmd->device->lun;
620 serial = cmd->serial_number;
621
622 /* Check active list for command command. */
623 spin_lock_irqsave(&ha->hardware_lock, flags);
624 for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
625 sp = ha->outstanding_cmds[i];
626
627 if (sp == NULL)
628 continue;
629
630 if (sp->cmd != cmd)
631 continue;
632
633 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
634 "sp->state=%x\n", __func__, ha->host_no, sp, serial,
635 sp->state));
636 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
637
638 spin_unlock_irqrestore(&ha->hardware_lock, flags);
639 if (ha->isp_ops.abort_command(ha, sp)) {
640 DEBUG2(printk("%s(%ld): abort_command "
641 "mbx failed.\n", __func__, ha->host_no));
642 } else {
643 DEBUG3(printk("%s(%ld): abort_command "
644 "mbx success.\n", __func__, ha->host_no));
645 ret = SUCCESS;
646 }
647 spin_lock_irqsave(&ha->hardware_lock, flags);
648
649 break;
650 }
651 spin_unlock_irqrestore(&ha->hardware_lock, flags);
652
653 /* Wait for the command to be returned. */
654 if (ret == SUCCESS) {
655 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
656 qla_printk(KERN_ERR, ha,
657 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
658 "%x.\n", ha->host_no, id, lun, serial, ret);
659 }
660 }
661
662 qla_printk(KERN_INFO, ha,
663 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
664 id, lun, serial, ret);
665
666 return ret;
667 }
668
669 /**************************************************************************
670 * qla2x00_eh_wait_for_pending_target_commands
671 *
672 * Description:
673 * Waits for all the commands to come back from the specified target.
674 *
675 * Input:
676 * ha - pointer to scsi_qla_host structure.
677 * t - target
678 * Returns:
679 * Either SUCCESS or FAILED.
680 *
681 * Note:
682 **************************************************************************/
683 static int
684 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
685 {
686 int cnt;
687 int status;
688 srb_t *sp;
689 struct scsi_cmnd *cmd;
690 unsigned long flags;
691
692 status = 0;
693
694 /*
695 * Waiting for all commands for the designated target in the active
696 * array
697 */
698 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
699 spin_lock_irqsave(&ha->hardware_lock, flags);
700 sp = ha->outstanding_cmds[cnt];
701 if (sp) {
702 cmd = sp->cmd;
703 spin_unlock_irqrestore(&ha->hardware_lock, flags);
704 if (cmd->device->id == t) {
705 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
706 status = 1;
707 break;
708 }
709 }
710 } else {
711 spin_unlock_irqrestore(&ha->hardware_lock, flags);
712 }
713 }
714 return (status);
715 }
716
717
718 /**************************************************************************
719 * qla2xxx_eh_device_reset
720 *
721 * Description:
722 * The device reset function will reset the target and abort any
723 * executing commands.
724 *
725 * NOTE: The use of SP is undefined within this context. Do *NOT*
726 * attempt to use this value, even if you determine it is
727 * non-null.
728 *
729 * Input:
730 * cmd = Linux SCSI command packet of the command that cause the
731 * bus device reset.
732 *
733 * Returns:
734 * SUCCESS/FAILURE (defined as macro in scsi.h).
735 *
736 **************************************************************************/
737 int
738 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
739 {
740 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
741 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
742 srb_t *sp;
743 int ret;
744 unsigned int id, lun;
745 unsigned long serial;
746
747 ret = FAILED;
748
749 id = cmd->device->id;
750 lun = cmd->device->lun;
751 serial = cmd->serial_number;
752
753 sp = (srb_t *) CMD_SP(cmd);
754 if (!sp || !fcport)
755 return ret;
756
757 qla_printk(KERN_INFO, ha,
758 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
759
760 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
761 goto eh_dev_reset_done;
762
763 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
764 if (qla2x00_device_reset(ha, fcport) == 0)
765 ret = SUCCESS;
766
767 #if defined(LOGOUT_AFTER_DEVICE_RESET)
768 if (ret == SUCCESS) {
769 if (fcport->flags & FC_FABRIC_DEVICE) {
770 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
771 qla2x00_mark_device_lost(ha, fcport, 0, 0);
772 }
773 }
774 #endif
775 } else {
776 DEBUG2(printk(KERN_INFO
777 "%s failed: loop not ready\n",__func__);)
778 }
779
780 if (ret == FAILED) {
781 DEBUG3(printk("%s(%ld): device reset failed\n",
782 __func__, ha->host_no));
783 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
784 __func__);
785
786 goto eh_dev_reset_done;
787 }
788
789 /* Flush outstanding commands. */
790 if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
791 ret = FAILED;
792 if (ret == FAILED) {
793 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
794 __func__, ha->host_no));
795 qla_printk(KERN_INFO, ha,
796 "%s: failed while waiting for commands\n", __func__);
797 } else
798 qla_printk(KERN_INFO, ha,
799 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
800 id, lun);
801 eh_dev_reset_done:
802 return ret;
803 }
804
805 /**************************************************************************
806 * qla2x00_eh_wait_for_pending_commands
807 *
808 * Description:
809 * Waits for all the commands to come back from the specified host.
810 *
811 * Input:
812 * ha - pointer to scsi_qla_host structure.
813 *
814 * Returns:
815 * 1 : SUCCESS
816 * 0 : FAILED
817 *
818 * Note:
819 **************************************************************************/
820 static int
821 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
822 {
823 int cnt;
824 int status;
825 srb_t *sp;
826 struct scsi_cmnd *cmd;
827 unsigned long flags;
828
829 status = 1;
830
831 /*
832 * Waiting for all commands for the designated target in the active
833 * array
834 */
835 for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
836 spin_lock_irqsave(&ha->hardware_lock, flags);
837 sp = ha->outstanding_cmds[cnt];
838 if (sp) {
839 cmd = sp->cmd;
840 spin_unlock_irqrestore(&ha->hardware_lock, flags);
841 status = qla2x00_eh_wait_on_command(ha, cmd);
842 if (status == 0)
843 break;
844 }
845 else {
846 spin_unlock_irqrestore(&ha->hardware_lock, flags);
847 }
848 }
849 return (status);
850 }
851
852
853 /**************************************************************************
854 * qla2xxx_eh_bus_reset
855 *
856 * Description:
857 * The bus reset function will reset the bus and abort any executing
858 * commands.
859 *
860 * Input:
861 * cmd = Linux SCSI command packet of the command that cause the
862 * bus reset.
863 *
864 * Returns:
865 * SUCCESS/FAILURE (defined as macro in scsi.h).
866 *
867 **************************************************************************/
868 int
869 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
870 {
871 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
872 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
873 srb_t *sp;
874 int ret;
875 unsigned int id, lun;
876 unsigned long serial;
877
878 ret = FAILED;
879
880 id = cmd->device->id;
881 lun = cmd->device->lun;
882 serial = cmd->serial_number;
883
884 sp = (srb_t *) CMD_SP(cmd);
885 if (!sp || !fcport)
886 return ret;
887
888 qla_printk(KERN_INFO, ha,
889 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
890
891 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
892 DEBUG2(printk("%s failed:board disabled\n",__func__));
893 goto eh_bus_reset_done;
894 }
895
896 if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
897 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
898 ret = SUCCESS;
899 }
900 if (ret == FAILED)
901 goto eh_bus_reset_done;
902
903 /* Flush outstanding commands. */
904 if (!qla2x00_eh_wait_for_pending_commands(ha))
905 ret = FAILED;
906
907 eh_bus_reset_done:
908 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
909 (ret == FAILED) ? "failed" : "succeded");
910
911 return ret;
912 }
913
914 /**************************************************************************
915 * qla2xxx_eh_host_reset
916 *
917 * Description:
918 * The reset function will reset the Adapter.
919 *
920 * Input:
921 * cmd = Linux SCSI command packet of the command that cause the
922 * adapter reset.
923 *
924 * Returns:
925 * Either SUCCESS or FAILED.
926 *
927 * Note:
928 **************************************************************************/
929 int
930 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
931 {
932 scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
933 fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
934 srb_t *sp;
935 int ret;
936 unsigned int id, lun;
937 unsigned long serial;
938
939 ret = FAILED;
940
941 id = cmd->device->id;
942 lun = cmd->device->lun;
943 serial = cmd->serial_number;
944
945 sp = (srb_t *) CMD_SP(cmd);
946 if (!sp || !fcport)
947 return ret;
948
949 qla_printk(KERN_INFO, ha,
950 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
951
952 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
953 goto eh_host_reset_lock;
954
955 /*
956 * Fixme-may be dpc thread is active and processing
957 * loop_resync,so wait a while for it to
958 * be completed and then issue big hammer.Otherwise
959 * it may cause I/O failure as big hammer marks the
960 * devices as lost kicking of the port_down_timer
961 * while dpc is stuck for the mailbox to complete.
962 */
963 qla2x00_wait_for_loop_ready(ha);
964 set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
965 if (qla2x00_abort_isp(ha)) {
966 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
967 /* failed. schedule dpc to try */
968 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
969
970 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
971 goto eh_host_reset_lock;
972 }
973 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
974
975 /* Waiting for our command in done_queue to be returned to OS.*/
976 if (qla2x00_eh_wait_for_pending_commands(ha))
977 ret = SUCCESS;
978
979 eh_host_reset_lock:
980 qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
981 (ret == FAILED) ? "failed" : "succeded");
982
983 return ret;
984 }
985
986 /*
987 * qla2x00_loop_reset
988 * Issue loop reset.
989 *
990 * Input:
991 * ha = adapter block pointer.
992 *
993 * Returns:
994 * 0 = success
995 */
996 static int
997 qla2x00_loop_reset(scsi_qla_host_t *ha)
998 {
999 int status = QLA_SUCCESS;
1000 struct fc_port *fcport;
1001
1002 if (ha->flags.enable_lip_reset) {
1003 status = qla2x00_lip_reset(ha);
1004 }
1005
1006 if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
1007 list_for_each_entry(fcport, &ha->fcports, list) {
1008 if (fcport->port_type != FCT_TARGET)
1009 continue;
1010
1011 status = qla2x00_device_reset(ha, fcport);
1012 if (status != QLA_SUCCESS)
1013 break;
1014 }
1015 }
1016
1017 if (status == QLA_SUCCESS &&
1018 ((!ha->flags.enable_target_reset &&
1019 !ha->flags.enable_lip_reset) ||
1020 ha->flags.enable_lip_full_login)) {
1021
1022 status = qla2x00_full_login_lip(ha);
1023 }
1024
1025 /* Issue marker command only when we are going to start the I/O */
1026 ha->marker_needed = 1;
1027
1028 if (status) {
1029 /* Empty */
1030 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1031 __func__,
1032 ha->host_no);)
1033 } else {
1034 /* Empty */
1035 DEBUG3(printk("%s(%ld): exiting normally.\n",
1036 __func__,
1037 ha->host_no);)
1038 }
1039
1040 return(status);
1041 }
1042
1043 /*
1044 * qla2x00_device_reset
1045 * Issue bus device reset message to the target.
1046 *
1047 * Input:
1048 * ha = adapter block pointer.
1049 * t = SCSI ID.
1050 * TARGET_QUEUE_LOCK must be released.
1051 * ADAPTER_STATE_LOCK must be released.
1052 *
1053 * Context:
1054 * Kernel context.
1055 */
1056 static int
1057 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1058 {
1059 /* Abort Target command will clear Reservation */
1060 return ha->isp_ops.abort_target(reset_fcport);
1061 }
1062
1063 static int
1064 qla2xxx_slave_alloc(struct scsi_device *sdev)
1065 {
1066 struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1067
1068 if (!rport || fc_remote_port_chkready(rport))
1069 return -ENXIO;
1070
1071 sdev->hostdata = *(fc_port_t **)rport->dd_data;
1072
1073 return 0;
1074 }
1075
1076 static int
1077 qla2xxx_slave_configure(struct scsi_device *sdev)
1078 {
1079 scsi_qla_host_t *ha = to_qla_host(sdev->host);
1080 struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1081
1082 if (sdev->tagged_supported)
1083 scsi_activate_tcq(sdev, 32);
1084 else
1085 scsi_deactivate_tcq(sdev, 32);
1086
1087 rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1088
1089 return 0;
1090 }
1091
1092 static void
1093 qla2xxx_slave_destroy(struct scsi_device *sdev)
1094 {
1095 sdev->hostdata = NULL;
1096 }
1097
1098 static int
1099 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1100 {
1101 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1102 return sdev->queue_depth;
1103 }
1104
1105 static int
1106 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1107 {
1108 if (sdev->tagged_supported) {
1109 scsi_set_tag_type(sdev, tag_type);
1110 if (tag_type)
1111 scsi_activate_tcq(sdev, sdev->queue_depth);
1112 else
1113 scsi_deactivate_tcq(sdev, sdev->queue_depth);
1114 } else
1115 tag_type = 0;
1116
1117 return tag_type;
1118 }
1119
1120 /**
1121 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1122 * @ha: HA context
1123 *
1124 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1125 * supported addressing method.
1126 */
1127 static void
1128 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1129 {
1130 /* Assume a 32bit DMA mask. */
1131 ha->flags.enable_64bit_addressing = 0;
1132
1133 if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1134 /* Any upper-dword bits set? */
1135 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1136 !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1137 /* Ok, a 64bit DMA mask is applicable. */
1138 ha->flags.enable_64bit_addressing = 1;
1139 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1140 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1141 return;
1142 }
1143 }
1144
1145 dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1146 pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1147 }
1148
1149 static inline void
1150 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1151 {
1152 ha->device_type = DT_EXTENDED_IDS;
1153 switch (ha->pdev->device) {
1154 case PCI_DEVICE_ID_QLOGIC_ISP2100:
1155 ha->device_type |= DT_ISP2100;
1156 ha->device_type &= ~DT_EXTENDED_IDS;
1157 break;
1158 case PCI_DEVICE_ID_QLOGIC_ISP2200:
1159 ha->device_type |= DT_ISP2200;
1160 ha->device_type &= ~DT_EXTENDED_IDS;
1161 break;
1162 case PCI_DEVICE_ID_QLOGIC_ISP2300:
1163 ha->device_type |= DT_ISP2300;
1164 ha->device_type |= DT_ZIO_SUPPORTED;
1165 break;
1166 case PCI_DEVICE_ID_QLOGIC_ISP2312:
1167 ha->device_type |= DT_ISP2312;
1168 ha->device_type |= DT_ZIO_SUPPORTED;
1169 break;
1170 case PCI_DEVICE_ID_QLOGIC_ISP2322:
1171 ha->device_type |= DT_ISP2322;
1172 ha->device_type |= DT_ZIO_SUPPORTED;
1173 if (ha->pdev->subsystem_vendor == 0x1028 &&
1174 ha->pdev->subsystem_device == 0x0170)
1175 ha->device_type |= DT_OEM_001;
1176 break;
1177 case PCI_DEVICE_ID_QLOGIC_ISP6312:
1178 ha->device_type |= DT_ISP6312;
1179 break;
1180 case PCI_DEVICE_ID_QLOGIC_ISP6322:
1181 ha->device_type |= DT_ISP6322;
1182 break;
1183 case PCI_DEVICE_ID_QLOGIC_ISP2422:
1184 ha->device_type |= DT_ISP2422;
1185 ha->device_type |= DT_ZIO_SUPPORTED;
1186 break;
1187 case PCI_DEVICE_ID_QLOGIC_ISP2432:
1188 ha->device_type |= DT_ISP2432;
1189 ha->device_type |= DT_ZIO_SUPPORTED;
1190 break;
1191 case PCI_DEVICE_ID_QLOGIC_ISP5422:
1192 ha->device_type |= DT_ISP5422;
1193 break;
1194 case PCI_DEVICE_ID_QLOGIC_ISP5432:
1195 ha->device_type |= DT_ISP5432;
1196 break;
1197 }
1198 }
1199
1200 static int
1201 qla2x00_iospace_config(scsi_qla_host_t *ha)
1202 {
1203 unsigned long pio, pio_len, pio_flags;
1204 unsigned long mmio, mmio_len, mmio_flags;
1205
1206 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1207 pio = pci_resource_start(ha->pdev, 0);
1208 pio_len = pci_resource_len(ha->pdev, 0);
1209 pio_flags = pci_resource_flags(ha->pdev, 0);
1210 if (pio_flags & IORESOURCE_IO) {
1211 if (pio_len < MIN_IOBASE_LEN) {
1212 qla_printk(KERN_WARNING, ha,
1213 "Invalid PCI I/O region size (%s)...\n",
1214 pci_name(ha->pdev));
1215 pio = 0;
1216 }
1217 } else {
1218 qla_printk(KERN_WARNING, ha,
1219 "region #0 not a PIO resource (%s)...\n",
1220 pci_name(ha->pdev));
1221 pio = 0;
1222 }
1223
1224 /* Use MMIO operations for all accesses. */
1225 mmio = pci_resource_start(ha->pdev, 1);
1226 mmio_len = pci_resource_len(ha->pdev, 1);
1227 mmio_flags = pci_resource_flags(ha->pdev, 1);
1228
1229 if (!(mmio_flags & IORESOURCE_MEM)) {
1230 qla_printk(KERN_ERR, ha,
1231 "region #0 not an MMIO resource (%s), aborting\n",
1232 pci_name(ha->pdev));
1233 goto iospace_error_exit;
1234 }
1235 if (mmio_len < MIN_IOBASE_LEN) {
1236 qla_printk(KERN_ERR, ha,
1237 "Invalid PCI mem region size (%s), aborting\n",
1238 pci_name(ha->pdev));
1239 goto iospace_error_exit;
1240 }
1241
1242 if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1243 qla_printk(KERN_WARNING, ha,
1244 "Failed to reserve PIO/MMIO regions (%s)\n",
1245 pci_name(ha->pdev));
1246
1247 goto iospace_error_exit;
1248 }
1249
1250 ha->pio_address = pio;
1251 ha->pio_length = pio_len;
1252 ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1253 if (!ha->iobase) {
1254 qla_printk(KERN_ERR, ha,
1255 "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1256
1257 goto iospace_error_exit;
1258 }
1259
1260 return (0);
1261
1262 iospace_error_exit:
1263 return (-ENOMEM);
1264 }
1265
1266 static void
1267 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1268 {
1269 unsigned long flags = 0;
1270 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1271
1272 spin_lock_irqsave(&ha->hardware_lock, flags);
1273 ha->interrupts_on = 1;
1274 /* enable risc and host interrupts */
1275 WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1276 RD_REG_WORD(&reg->ictrl);
1277 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1278
1279 }
1280
1281 static void
1282 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1283 {
1284 unsigned long flags = 0;
1285 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1286
1287 spin_lock_irqsave(&ha->hardware_lock, flags);
1288 ha->interrupts_on = 0;
1289 /* disable risc and host interrupts */
1290 WRT_REG_WORD(&reg->ictrl, 0);
1291 RD_REG_WORD(&reg->ictrl);
1292 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1293 }
1294
1295 static void
1296 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1297 {
1298 unsigned long flags = 0;
1299 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1300
1301 spin_lock_irqsave(&ha->hardware_lock, flags);
1302 ha->interrupts_on = 1;
1303 WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1304 RD_REG_DWORD(&reg->ictrl);
1305 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1306 }
1307
1308 static void
1309 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1310 {
1311 unsigned long flags = 0;
1312 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1313
1314 spin_lock_irqsave(&ha->hardware_lock, flags);
1315 ha->interrupts_on = 0;
1316 WRT_REG_DWORD(&reg->ictrl, 0);
1317 RD_REG_DWORD(&reg->ictrl);
1318 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1319 }
1320
1321 /*
1322 * PCI driver interface
1323 */
1324 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1325 {
1326 int ret = -ENODEV;
1327 device_reg_t __iomem *reg;
1328 struct Scsi_Host *host;
1329 scsi_qla_host_t *ha;
1330 unsigned long flags = 0;
1331 unsigned long wait_switch = 0;
1332 char pci_info[20];
1333 char fw_str[30];
1334 fc_port_t *fcport;
1335 struct scsi_host_template *sht;
1336
1337 if (pci_enable_device(pdev))
1338 goto probe_out;
1339
1340 sht = &qla2x00_driver_template;
1341 if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1342 pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432)
1343 sht = &qla24xx_driver_template;
1344 host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1345 if (host == NULL) {
1346 printk(KERN_WARNING
1347 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1348 goto probe_disable_device;
1349 }
1350
1351 /* Clear our data area */
1352 ha = (scsi_qla_host_t *)host->hostdata;
1353 memset(ha, 0, sizeof(scsi_qla_host_t));
1354
1355 ha->pdev = pdev;
1356 ha->host = host;
1357 ha->host_no = host->host_no;
1358 ha->brd_info = brd_info;
1359 sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1360
1361 /* Set ISP-type information. */
1362 qla2x00_set_isp_flags(ha);
1363
1364 /* Configure PCI I/O space */
1365 ret = qla2x00_iospace_config(ha);
1366 if (ret)
1367 goto probe_failed;
1368
1369 qla_printk(KERN_INFO, ha,
1370 "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1371 ha->iobase);
1372
1373 spin_lock_init(&ha->hardware_lock);
1374
1375 ha->prev_topology = 0;
1376 ha->ports = MAX_BUSES;
1377 ha->init_cb_size = sizeof(init_cb_t);
1378 ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1379 ha->link_data_rate = LDR_UNKNOWN;
1380 ha->optrom_size = OPTROM_SIZE_2300;
1381
1382 /* Assign ISP specific operations. */
1383 ha->isp_ops.pci_config = qla2100_pci_config;
1384 ha->isp_ops.reset_chip = qla2x00_reset_chip;
1385 ha->isp_ops.chip_diag = qla2x00_chip_diag;
1386 ha->isp_ops.config_rings = qla2x00_config_rings;
1387 ha->isp_ops.reset_adapter = qla2x00_reset_adapter;
1388 ha->isp_ops.nvram_config = qla2x00_nvram_config;
1389 ha->isp_ops.update_fw_options = qla2x00_update_fw_options;
1390 ha->isp_ops.load_risc = qla2x00_load_risc;
1391 ha->isp_ops.pci_info_str = qla2x00_pci_info_str;
1392 ha->isp_ops.fw_version_str = qla2x00_fw_version_str;
1393 ha->isp_ops.intr_handler = qla2100_intr_handler;
1394 ha->isp_ops.enable_intrs = qla2x00_enable_intrs;
1395 ha->isp_ops.disable_intrs = qla2x00_disable_intrs;
1396 ha->isp_ops.abort_command = qla2x00_abort_command;
1397 ha->isp_ops.abort_target = qla2x00_abort_target;
1398 ha->isp_ops.fabric_login = qla2x00_login_fabric;
1399 ha->isp_ops.fabric_logout = qla2x00_fabric_logout;
1400 ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_32;
1401 ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_32;
1402 ha->isp_ops.prep_ms_iocb = qla2x00_prep_ms_iocb;
1403 ha->isp_ops.prep_ms_fdmi_iocb = qla2x00_prep_ms_fdmi_iocb;
1404 ha->isp_ops.read_nvram = qla2x00_read_nvram_data;
1405 ha->isp_ops.write_nvram = qla2x00_write_nvram_data;
1406 ha->isp_ops.fw_dump = qla2100_fw_dump;
1407 ha->isp_ops.ascii_fw_dump = qla2100_ascii_fw_dump;
1408 ha->isp_ops.read_optrom = qla2x00_read_optrom_data;
1409 ha->isp_ops.write_optrom = qla2x00_write_optrom_data;
1410 if (IS_QLA2100(ha)) {
1411 host->max_id = MAX_TARGETS_2100;
1412 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1413 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1414 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1415 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1416 host->sg_tablesize = 32;
1417 ha->gid_list_info_size = 4;
1418 } else if (IS_QLA2200(ha)) {
1419 host->max_id = MAX_TARGETS_2200;
1420 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1421 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1422 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1423 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1424 ha->gid_list_info_size = 4;
1425 } else if (IS_QLA23XX(ha)) {
1426 host->max_id = MAX_TARGETS_2200;
1427 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1428 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1429 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1430 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1431 ha->isp_ops.pci_config = qla2300_pci_config;
1432 ha->isp_ops.intr_handler = qla2300_intr_handler;
1433 ha->isp_ops.fw_dump = qla2300_fw_dump;
1434 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1435 ha->isp_ops.beacon_on = qla2x00_beacon_on;
1436 ha->isp_ops.beacon_off = qla2x00_beacon_off;
1437 ha->isp_ops.beacon_blink = qla2x00_beacon_blink;
1438 ha->gid_list_info_size = 6;
1439 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1440 ha->optrom_size = OPTROM_SIZE_2322;
1441 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1442 host->max_id = MAX_TARGETS_2200;
1443 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1444 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1445 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1446 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1447 ha->init_cb_size = sizeof(struct init_cb_24xx);
1448 ha->mgmt_svr_loop_id = 10;
1449 ha->isp_ops.pci_config = qla24xx_pci_config;
1450 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1451 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1452 ha->isp_ops.config_rings = qla24xx_config_rings;
1453 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1454 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1455 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1456 ha->isp_ops.load_risc = qla24xx_load_risc;
1457 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
1458 if (ql2xfwloadflash)
1459 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1460 #endif
1461 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1462 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1463 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1464 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1465 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1466 ha->isp_ops.abort_command = qla24xx_abort_command;
1467 ha->isp_ops.abort_target = qla24xx_abort_target;
1468 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1469 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1470 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1471 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1472 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1473 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1474 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1475 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1476 ha->isp_ops.read_optrom = qla24xx_read_optrom_data;
1477 ha->isp_ops.write_optrom = qla24xx_write_optrom_data;
1478 ha->isp_ops.beacon_on = qla24xx_beacon_on;
1479 ha->isp_ops.beacon_off = qla24xx_beacon_off;
1480 ha->isp_ops.beacon_blink = qla24xx_beacon_blink;
1481 ha->gid_list_info_size = 8;
1482 ha->optrom_size = OPTROM_SIZE_24XX;
1483 }
1484 host->can_queue = ha->request_q_length + 128;
1485
1486 /* load the F/W, read paramaters, and init the H/W */
1487 ha->instance = num_hosts;
1488
1489 init_MUTEX(&ha->mbx_cmd_sem);
1490 init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1491
1492 INIT_LIST_HEAD(&ha->list);
1493 INIT_LIST_HEAD(&ha->fcports);
1494 INIT_LIST_HEAD(&ha->rscn_fcports);
1495
1496 /*
1497 * These locks are used to prevent more than one CPU
1498 * from modifying the queue at the same time. The
1499 * higher level "host_lock" will reduce most
1500 * contention for these locks.
1501 */
1502 spin_lock_init(&ha->mbx_reg_lock);
1503
1504 qla2x00_config_dma_addressing(ha);
1505 if (qla2x00_mem_alloc(ha)) {
1506 qla_printk(KERN_WARNING, ha,
1507 "[ERROR] Failed to allocate memory for adapter\n");
1508
1509 ret = -ENOMEM;
1510 goto probe_failed;
1511 }
1512
1513 if (qla2x00_initialize_adapter(ha) &&
1514 !(ha->device_flags & DFLG_NO_CABLE)) {
1515
1516 qla_printk(KERN_WARNING, ha,
1517 "Failed to initialize adapter\n");
1518
1519 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1520 "Adapter flags %x.\n",
1521 ha->host_no, ha->device_flags));
1522
1523 ret = -ENODEV;
1524 goto probe_failed;
1525 }
1526
1527 /*
1528 * Startup the kernel thread for this host adapter
1529 */
1530 ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1531 "%s_dpc", ha->host_str);
1532 if (IS_ERR(ha->dpc_thread)) {
1533 qla_printk(KERN_WARNING, ha,
1534 "Unable to start DPC thread!\n");
1535 ret = PTR_ERR(ha->dpc_thread);
1536 goto probe_failed;
1537 }
1538
1539 host->this_id = 255;
1540 host->cmd_per_lun = 3;
1541 host->unique_id = ha->instance;
1542 host->max_cmd_len = MAX_CMDSZ;
1543 host->max_channel = ha->ports - 1;
1544 host->max_lun = MAX_LUNS;
1545 host->transportt = qla2xxx_transport_template;
1546
1547 ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1548 SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1549 if (ret) {
1550 qla_printk(KERN_WARNING, ha,
1551 "Failed to reserve interrupt %d already in use.\n",
1552 pdev->irq);
1553 goto probe_failed;
1554 }
1555 host->irq = pdev->irq;
1556
1557 /* Initialized the timer */
1558 qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1559
1560 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1561 ha->host_no, ha));
1562
1563 ha->isp_ops.disable_intrs(ha);
1564
1565 spin_lock_irqsave(&ha->hardware_lock, flags);
1566 reg = ha->iobase;
1567 if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
1568 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1569 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1570 } else {
1571 WRT_REG_WORD(&reg->isp.semaphore, 0);
1572 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1573 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1574
1575 /* Enable proper parity */
1576 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1577 if (IS_QLA2300(ha))
1578 /* SRAM parity */
1579 WRT_REG_WORD(&reg->isp.hccr,
1580 (HCCR_ENABLE_PARITY + 0x1));
1581 else
1582 /* SRAM, Instruction RAM and GP RAM parity */
1583 WRT_REG_WORD(&reg->isp.hccr,
1584 (HCCR_ENABLE_PARITY + 0x7));
1585 }
1586 }
1587 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1588
1589 ha->isp_ops.enable_intrs(ha);
1590
1591 /* v2.19.5b6 */
1592 /*
1593 * Wait around max loop_reset_delay secs for the devices to come
1594 * on-line. We don't want Linux scanning before we are ready.
1595 *
1596 */
1597 for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1598 time_before(jiffies,wait_switch) &&
1599 !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1600 && (ha->device_flags & SWITCH_FOUND) ;) {
1601
1602 qla2x00_check_fabric_devices(ha);
1603
1604 msleep(10);
1605 }
1606
1607 pci_set_drvdata(pdev, ha);
1608 ha->flags.init_done = 1;
1609 num_hosts++;
1610
1611 ret = scsi_add_host(host, &pdev->dev);
1612 if (ret)
1613 goto probe_failed;
1614
1615 qla2x00_alloc_sysfs_attr(ha);
1616
1617 qla2x00_init_host_attr(ha);
1618
1619 qla_printk(KERN_INFO, ha, "\n"
1620 " QLogic Fibre Channel HBA Driver: %s\n"
1621 " QLogic %s - %s\n"
1622 " ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1623 qla2x00_version_str, ha->model_number,
1624 ha->model_desc ? ha->model_desc: "", pdev->device,
1625 ha->isp_ops.pci_info_str(ha, pci_info), pci_name(pdev),
1626 ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1627 ha->isp_ops.fw_version_str(ha, fw_str));
1628
1629 /* Go with fc_rport registration. */
1630 list_for_each_entry(fcport, &ha->fcports, list)
1631 qla2x00_reg_remote_port(ha, fcport);
1632
1633 return 0;
1634
1635 probe_failed:
1636 qla2x00_free_device(ha);
1637
1638 scsi_host_put(host);
1639
1640 probe_disable_device:
1641 pci_disable_device(pdev);
1642
1643 probe_out:
1644 return ret;
1645 }
1646 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1647
1648 void qla2x00_remove_one(struct pci_dev *pdev)
1649 {
1650 scsi_qla_host_t *ha;
1651
1652 ha = pci_get_drvdata(pdev);
1653
1654 qla2x00_free_sysfs_attr(ha);
1655
1656 fc_remove_host(ha->host);
1657
1658 scsi_remove_host(ha->host);
1659
1660 qla2x00_free_device(ha);
1661
1662 scsi_host_put(ha->host);
1663
1664 pci_set_drvdata(pdev, NULL);
1665 }
1666 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1667
1668 static void
1669 qla2x00_free_device(scsi_qla_host_t *ha)
1670 {
1671 /* Abort any outstanding IO descriptors. */
1672 if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1673 qla2x00_cancel_io_descriptors(ha);
1674
1675 /* Disable timer */
1676 if (ha->timer_active)
1677 qla2x00_stop_timer(ha);
1678
1679 /* Kill the kernel thread for this host */
1680 if (ha->dpc_thread) {
1681 struct task_struct *t = ha->dpc_thread;
1682
1683 /*
1684 * qla2xxx_wake_dpc checks for ->dpc_thread
1685 * so we need to zero it out.
1686 */
1687 ha->dpc_thread = NULL;
1688 kthread_stop(t);
1689 }
1690
1691 /* Stop currently executing firmware. */
1692 qla2x00_stop_firmware(ha);
1693
1694 /* turn-off interrupts on the card */
1695 if (ha->interrupts_on)
1696 ha->isp_ops.disable_intrs(ha);
1697
1698 qla2x00_mem_free(ha);
1699
1700 ha->flags.online = 0;
1701
1702 /* Detach interrupts */
1703 if (ha->pdev->irq)
1704 free_irq(ha->pdev->irq, ha);
1705
1706 /* release io space registers */
1707 if (ha->iobase)
1708 iounmap(ha->iobase);
1709 pci_release_regions(ha->pdev);
1710
1711 pci_disable_device(ha->pdev);
1712 }
1713
1714 static inline void
1715 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1716 int defer)
1717 {
1718 unsigned long flags;
1719 struct fc_rport *rport;
1720
1721 if (!fcport->rport)
1722 return;
1723
1724 rport = fcport->rport;
1725 if (defer) {
1726 spin_lock_irqsave(&fcport->rport_lock, flags);
1727 fcport->drport = rport;
1728 fcport->rport = NULL;
1729 *(fc_port_t **)rport->dd_data = NULL;
1730 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1731 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1732 } else {
1733 spin_lock_irqsave(&fcport->rport_lock, flags);
1734 fcport->rport = NULL;
1735 *(fc_port_t **)rport->dd_data = NULL;
1736 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1737 fc_remote_port_delete(rport);
1738 }
1739 }
1740
1741 /*
1742 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1743 *
1744 * Input: ha = adapter block pointer. fcport = port structure pointer.
1745 *
1746 * Return: None.
1747 *
1748 * Context:
1749 */
1750 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1751 int do_login, int defer)
1752 {
1753 if (atomic_read(&fcport->state) == FCS_ONLINE)
1754 qla2x00_schedule_rport_del(ha, fcport, defer);
1755
1756 /*
1757 * We may need to retry the login, so don't change the state of the
1758 * port but do the retries.
1759 */
1760 if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1761 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1762
1763 if (!do_login)
1764 return;
1765
1766 if (fcport->login_retry == 0) {
1767 fcport->login_retry = ha->login_retry_count;
1768 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1769
1770 DEBUG(printk("scsi(%ld): Port login retry: "
1771 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1772 "id = 0x%04x retry cnt=%d\n",
1773 ha->host_no,
1774 fcport->port_name[0],
1775 fcport->port_name[1],
1776 fcport->port_name[2],
1777 fcport->port_name[3],
1778 fcport->port_name[4],
1779 fcport->port_name[5],
1780 fcport->port_name[6],
1781 fcport->port_name[7],
1782 fcport->loop_id,
1783 fcport->login_retry));
1784 }
1785 }
1786
1787 /*
1788 * qla2x00_mark_all_devices_lost
1789 * Updates fcport state when device goes offline.
1790 *
1791 * Input:
1792 * ha = adapter block pointer.
1793 * fcport = port structure pointer.
1794 *
1795 * Return:
1796 * None.
1797 *
1798 * Context:
1799 */
1800 void
1801 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1802 {
1803 fc_port_t *fcport;
1804
1805 list_for_each_entry(fcport, &ha->fcports, list) {
1806 if (fcport->port_type != FCT_TARGET)
1807 continue;
1808
1809 /*
1810 * No point in marking the device as lost, if the device is
1811 * already DEAD.
1812 */
1813 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1814 continue;
1815 if (atomic_read(&fcport->state) == FCS_ONLINE)
1816 qla2x00_schedule_rport_del(ha, fcport, defer);
1817 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1818 }
1819
1820 if (defer)
1821 qla2xxx_wake_dpc(ha);
1822 }
1823
1824 /*
1825 * qla2x00_mem_alloc
1826 * Allocates adapter memory.
1827 *
1828 * Returns:
1829 * 0 = success.
1830 * 1 = failure.
1831 */
1832 static uint8_t
1833 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1834 {
1835 char name[16];
1836 uint8_t status = 1;
1837 int retry= 10;
1838
1839 do {
1840 /*
1841 * This will loop only once if everything goes well, else some
1842 * number of retries will be performed to get around a kernel
1843 * bug where available mem is not allocated until after a
1844 * little delay and a retry.
1845 */
1846 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1847 (ha->request_q_length + 1) * sizeof(request_t),
1848 &ha->request_dma, GFP_KERNEL);
1849 if (ha->request_ring == NULL) {
1850 qla_printk(KERN_WARNING, ha,
1851 "Memory Allocation failed - request_ring\n");
1852
1853 qla2x00_mem_free(ha);
1854 msleep(100);
1855
1856 continue;
1857 }
1858
1859 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1860 (ha->response_q_length + 1) * sizeof(response_t),
1861 &ha->response_dma, GFP_KERNEL);
1862 if (ha->response_ring == NULL) {
1863 qla_printk(KERN_WARNING, ha,
1864 "Memory Allocation failed - response_ring\n");
1865
1866 qla2x00_mem_free(ha);
1867 msleep(100);
1868
1869 continue;
1870 }
1871
1872 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1873 &ha->gid_list_dma, GFP_KERNEL);
1874 if (ha->gid_list == NULL) {
1875 qla_printk(KERN_WARNING, ha,
1876 "Memory Allocation failed - gid_list\n");
1877
1878 qla2x00_mem_free(ha);
1879 msleep(100);
1880
1881 continue;
1882 }
1883
1884 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1885 sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1886 if (ha->rlc_rsp == NULL) {
1887 qla_printk(KERN_WARNING, ha,
1888 "Memory Allocation failed - rlc");
1889
1890 qla2x00_mem_free(ha);
1891 msleep(100);
1892
1893 continue;
1894 }
1895
1896 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1897 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1898 DMA_POOL_SIZE, 8, 0);
1899 if (ha->s_dma_pool == NULL) {
1900 qla_printk(KERN_WARNING, ha,
1901 "Memory Allocation failed - s_dma_pool\n");
1902
1903 qla2x00_mem_free(ha);
1904 msleep(100);
1905
1906 continue;
1907 }
1908
1909 /* get consistent memory allocated for init control block */
1910 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1911 &ha->init_cb_dma);
1912 if (ha->init_cb == NULL) {
1913 qla_printk(KERN_WARNING, ha,
1914 "Memory Allocation failed - init_cb\n");
1915
1916 qla2x00_mem_free(ha);
1917 msleep(100);
1918
1919 continue;
1920 }
1921 memset(ha->init_cb, 0, ha->init_cb_size);
1922
1923 /* Get consistent memory allocated for Get Port Database cmd */
1924 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1925 &ha->iodesc_pd_dma);
1926 if (ha->iodesc_pd == NULL) {
1927 /* error */
1928 qla_printk(KERN_WARNING, ha,
1929 "Memory Allocation failed - iodesc_pd\n");
1930
1931 qla2x00_mem_free(ha);
1932 msleep(100);
1933
1934 continue;
1935 }
1936 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1937
1938 /* Allocate ioctl related memory. */
1939 if (qla2x00_alloc_ioctl_mem(ha)) {
1940 qla_printk(KERN_WARNING, ha,
1941 "Memory Allocation failed - ioctl_mem\n");
1942
1943 qla2x00_mem_free(ha);
1944 msleep(100);
1945
1946 continue;
1947 }
1948
1949 if (qla2x00_allocate_sp_pool(ha)) {
1950 qla_printk(KERN_WARNING, ha,
1951 "Memory Allocation failed - "
1952 "qla2x00_allocate_sp_pool()\n");
1953
1954 qla2x00_mem_free(ha);
1955 msleep(100);
1956
1957 continue;
1958 }
1959
1960 /* Allocate memory for SNS commands */
1961 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1962 /* Get consistent memory allocated for SNS commands */
1963 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1964 sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1965 GFP_KERNEL);
1966 if (ha->sns_cmd == NULL) {
1967 /* error */
1968 qla_printk(KERN_WARNING, ha,
1969 "Memory Allocation failed - sns_cmd\n");
1970
1971 qla2x00_mem_free(ha);
1972 msleep(100);
1973
1974 continue;
1975 }
1976 memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1977 } else {
1978 /* Get consistent memory allocated for MS IOCB */
1979 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1980 &ha->ms_iocb_dma);
1981 if (ha->ms_iocb == NULL) {
1982 /* error */
1983 qla_printk(KERN_WARNING, ha,
1984 "Memory Allocation failed - ms_iocb\n");
1985
1986 qla2x00_mem_free(ha);
1987 msleep(100);
1988
1989 continue;
1990 }
1991 memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1992
1993 /*
1994 * Get consistent memory allocated for CT SNS
1995 * commands
1996 */
1997 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1998 sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1999 GFP_KERNEL);
2000 if (ha->ct_sns == NULL) {
2001 /* error */
2002 qla_printk(KERN_WARNING, ha,
2003 "Memory Allocation failed - ct_sns\n");
2004
2005 qla2x00_mem_free(ha);
2006 msleep(100);
2007
2008 continue;
2009 }
2010 memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
2011 }
2012
2013 /* Done all allocations without any error. */
2014 status = 0;
2015
2016 } while (retry-- && status != 0);
2017
2018 if (status) {
2019 printk(KERN_WARNING
2020 "%s(): **** FAILED ****\n", __func__);
2021 }
2022
2023 return(status);
2024 }
2025
2026 /*
2027 * qla2x00_mem_free
2028 * Frees all adapter allocated memory.
2029 *
2030 * Input:
2031 * ha = adapter block pointer.
2032 */
2033 static void
2034 qla2x00_mem_free(scsi_qla_host_t *ha)
2035 {
2036 struct list_head *fcpl, *fcptemp;
2037 fc_port_t *fcport;
2038
2039 if (ha == NULL) {
2040 /* error */
2041 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
2042 return;
2043 }
2044
2045 /* free ioctl memory */
2046 qla2x00_free_ioctl_mem(ha);
2047
2048 /* free sp pool */
2049 qla2x00_free_sp_pool(ha);
2050
2051 if (ha->sns_cmd)
2052 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2053 ha->sns_cmd, ha->sns_cmd_dma);
2054
2055 if (ha->ct_sns)
2056 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2057 ha->ct_sns, ha->ct_sns_dma);
2058
2059 if (ha->ms_iocb)
2060 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2061
2062 if (ha->iodesc_pd)
2063 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
2064
2065 if (ha->init_cb)
2066 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
2067
2068 if (ha->s_dma_pool)
2069 dma_pool_destroy(ha->s_dma_pool);
2070
2071 if (ha->rlc_rsp)
2072 dma_free_coherent(&ha->pdev->dev,
2073 sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
2074 ha->rlc_rsp_dma);
2075
2076 if (ha->gid_list)
2077 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2078 ha->gid_list_dma);
2079
2080 if (ha->response_ring)
2081 dma_free_coherent(&ha->pdev->dev,
2082 (ha->response_q_length + 1) * sizeof(response_t),
2083 ha->response_ring, ha->response_dma);
2084
2085 if (ha->request_ring)
2086 dma_free_coherent(&ha->pdev->dev,
2087 (ha->request_q_length + 1) * sizeof(request_t),
2088 ha->request_ring, ha->request_dma);
2089
2090 ha->sns_cmd = NULL;
2091 ha->sns_cmd_dma = 0;
2092 ha->ct_sns = NULL;
2093 ha->ct_sns_dma = 0;
2094 ha->ms_iocb = NULL;
2095 ha->ms_iocb_dma = 0;
2096 ha->iodesc_pd = NULL;
2097 ha->iodesc_pd_dma = 0;
2098 ha->init_cb = NULL;
2099 ha->init_cb_dma = 0;
2100
2101 ha->s_dma_pool = NULL;
2102
2103 ha->rlc_rsp = NULL;
2104 ha->rlc_rsp_dma = 0;
2105 ha->gid_list = NULL;
2106 ha->gid_list_dma = 0;
2107
2108 ha->response_ring = NULL;
2109 ha->response_dma = 0;
2110 ha->request_ring = NULL;
2111 ha->request_dma = 0;
2112
2113 list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2114 fcport = list_entry(fcpl, fc_port_t, list);
2115
2116 /* fc ports */
2117 list_del_init(&fcport->list);
2118 kfree(fcport);
2119 }
2120 INIT_LIST_HEAD(&ha->fcports);
2121
2122 if (ha->fw_dump)
2123 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2124
2125 vfree(ha->fw_dump24);
2126
2127 vfree(ha->fw_dump_buffer);
2128
2129 ha->fw_dump = NULL;
2130 ha->fw_dump24 = NULL;
2131 ha->fw_dumped = 0;
2132 ha->fw_dump_reading = 0;
2133 ha->fw_dump_buffer = NULL;
2134
2135 vfree(ha->optrom_buffer);
2136 }
2137
2138 /*
2139 * qla2x00_allocate_sp_pool
2140 * This routine is called during initialization to allocate
2141 * memory for local srb_t.
2142 *
2143 * Input:
2144 * ha = adapter block pointer.
2145 *
2146 * Context:
2147 * Kernel context.
2148 *
2149 * Note: Sets the ref_count for non Null sp to one.
2150 */
2151 static int
2152 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2153 {
2154 int rval;
2155
2156 rval = QLA_SUCCESS;
2157 ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2158 mempool_free_slab, srb_cachep);
2159 if (ha->srb_mempool == NULL) {
2160 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2161 rval = QLA_FUNCTION_FAILED;
2162 }
2163 return (rval);
2164 }
2165
2166 /*
2167 * This routine frees all adapter allocated memory.
2168 *
2169 */
2170 static void
2171 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2172 {
2173 if (ha->srb_mempool) {
2174 mempool_destroy(ha->srb_mempool);
2175 ha->srb_mempool = NULL;
2176 }
2177 }
2178
2179 /**************************************************************************
2180 * qla2x00_do_dpc
2181 * This kernel thread is a task that is schedule by the interrupt handler
2182 * to perform the background processing for interrupts.
2183 *
2184 * Notes:
2185 * This task always run in the context of a kernel thread. It
2186 * is kick-off by the driver's detect code and starts up
2187 * up one per adapter. It immediately goes to sleep and waits for
2188 * some fibre event. When either the interrupt handler or
2189 * the timer routine detects a event it will one of the task
2190 * bits then wake us up.
2191 **************************************************************************/
2192 static int
2193 qla2x00_do_dpc(void *data)
2194 {
2195 scsi_qla_host_t *ha;
2196 fc_port_t *fcport;
2197 uint8_t status;
2198 uint16_t next_loopid;
2199
2200 ha = (scsi_qla_host_t *)data;
2201
2202 set_user_nice(current, -20);
2203
2204 while (!kthread_should_stop()) {
2205 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2206
2207 set_current_state(TASK_INTERRUPTIBLE);
2208 schedule();
2209 __set_current_state(TASK_RUNNING);
2210
2211 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2212
2213 /* Initialization not yet finished. Don't do anything yet. */
2214 if (!ha->flags.init_done)
2215 continue;
2216
2217 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2218
2219 ha->dpc_active = 1;
2220
2221 if (ha->flags.mbox_busy) {
2222 ha->dpc_active = 0;
2223 continue;
2224 }
2225
2226 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2227
2228 DEBUG(printk("scsi(%ld): dpc: sched "
2229 "qla2x00_abort_isp ha = %p\n",
2230 ha->host_no, ha));
2231 if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2232 &ha->dpc_flags))) {
2233
2234 if (qla2x00_abort_isp(ha)) {
2235 /* failed. retry later */
2236 set_bit(ISP_ABORT_NEEDED,
2237 &ha->dpc_flags);
2238 }
2239 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2240 }
2241 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2242 ha->host_no));
2243 }
2244
2245 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2246 qla2x00_update_fcports(ha);
2247
2248 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2249 DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2250 ha->host_no));
2251 qla2x00_loop_reset(ha);
2252 }
2253
2254 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2255 (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2256
2257 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2258 ha->host_no));
2259
2260 qla2x00_rst_aen(ha);
2261 clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2262 }
2263
2264 /* Retry each device up to login retry count */
2265 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2266 !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2267 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2268
2269 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2270 ha->host_no));
2271
2272 next_loopid = 0;
2273 list_for_each_entry(fcport, &ha->fcports, list) {
2274 if (fcport->port_type != FCT_TARGET)
2275 continue;
2276
2277 /*
2278 * If the port is not ONLINE then try to login
2279 * to it if we haven't run out of retries.
2280 */
2281 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2282 fcport->login_retry) {
2283
2284 fcport->login_retry--;
2285 if (fcport->flags & FCF_FABRIC_DEVICE) {
2286 if (fcport->flags &
2287 FCF_TAPE_PRESENT)
2288 ha->isp_ops.fabric_logout(
2289 ha, fcport->loop_id,
2290 fcport->d_id.b.domain,
2291 fcport->d_id.b.area,
2292 fcport->d_id.b.al_pa);
2293 status = qla2x00_fabric_login(
2294 ha, fcport, &next_loopid);
2295 } else
2296 status =
2297 qla2x00_local_device_login(
2298 ha, fcport);
2299
2300 if (status == QLA_SUCCESS) {
2301 fcport->old_loop_id = fcport->loop_id;
2302
2303 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2304 ha->host_no, fcport->loop_id));
2305
2306 qla2x00_update_fcport(ha,
2307 fcport);
2308 } else if (status == 1) {
2309 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2310 /* retry the login again */
2311 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2312 ha->host_no,
2313 fcport->login_retry, fcport->loop_id));
2314 } else {
2315 fcport->login_retry = 0;
2316 }
2317 }
2318 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2319 break;
2320 }
2321 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2322 ha->host_no));
2323 }
2324
2325 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2326 atomic_read(&ha->loop_state) != LOOP_DOWN) {
2327
2328 clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2329 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2330 ha->host_no));
2331
2332 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2333
2334 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2335 ha->host_no));
2336 }
2337
2338 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2339
2340 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2341 ha->host_no));
2342
2343 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2344 &ha->dpc_flags))) {
2345
2346 qla2x00_loop_resync(ha);
2347
2348 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2349 }
2350
2351 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2352 ha->host_no));
2353 }
2354
2355 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2356
2357 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2358 ha->host_no));
2359
2360 qla2x00_rescan_fcports(ha);
2361
2362 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2363 "end.\n",
2364 ha->host_no));
2365 }
2366
2367 if (!ha->interrupts_on)
2368 ha->isp_ops.enable_intrs(ha);
2369
2370 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2371 ha->isp_ops.beacon_blink(ha);
2372
2373 ha->dpc_active = 0;
2374 } /* End of while(1) */
2375
2376 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2377
2378 /*
2379 * Make sure that nobody tries to wake us up again.
2380 */
2381 ha->dpc_active = 0;
2382
2383 return 0;
2384 }
2385
2386 void
2387 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2388 {
2389 if (ha->dpc_thread)
2390 wake_up_process(ha->dpc_thread);
2391 }
2392
2393 /*
2394 * qla2x00_rst_aen
2395 * Processes asynchronous reset.
2396 *
2397 * Input:
2398 * ha = adapter block pointer.
2399 */
2400 static void
2401 qla2x00_rst_aen(scsi_qla_host_t *ha)
2402 {
2403 if (ha->flags.online && !ha->flags.reset_active &&
2404 !atomic_read(&ha->loop_down_timer) &&
2405 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2406 do {
2407 clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2408
2409 /*
2410 * Issue marker command only when we are going to start
2411 * the I/O.
2412 */
2413 ha->marker_needed = 1;
2414 } while (!atomic_read(&ha->loop_down_timer) &&
2415 (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2416 }
2417 }
2418
2419 static void
2420 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2421 {
2422 struct scsi_cmnd *cmd = sp->cmd;
2423
2424 if (sp->flags & SRB_DMA_VALID) {
2425 if (cmd->use_sg) {
2426 dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2427 cmd->use_sg, cmd->sc_data_direction);
2428 } else if (cmd->request_bufflen) {
2429 dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2430 cmd->request_bufflen, cmd->sc_data_direction);
2431 }
2432 sp->flags &= ~SRB_DMA_VALID;
2433 }
2434 CMD_SP(cmd) = NULL;
2435 }
2436
2437 void
2438 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2439 {
2440 struct scsi_cmnd *cmd = sp->cmd;
2441
2442 qla2x00_sp_free_dma(ha, sp);
2443
2444 mempool_free(sp, ha->srb_mempool);
2445
2446 cmd->scsi_done(cmd);
2447 }
2448
2449 /**************************************************************************
2450 * qla2x00_timer
2451 *
2452 * Description:
2453 * One second timer
2454 *
2455 * Context: Interrupt
2456 ***************************************************************************/
2457 static void
2458 qla2x00_timer(scsi_qla_host_t *ha)
2459 {
2460 unsigned long cpu_flags = 0;
2461 fc_port_t *fcport;
2462 int start_dpc = 0;
2463 int index;
2464 srb_t *sp;
2465 int t;
2466
2467 /*
2468 * Ports - Port down timer.
2469 *
2470 * Whenever, a port is in the LOST state we start decrementing its port
2471 * down timer every second until it reaches zero. Once it reaches zero
2472 * the port it marked DEAD.
2473 */
2474 t = 0;
2475 list_for_each_entry(fcport, &ha->fcports, list) {
2476 if (fcport->port_type != FCT_TARGET)
2477 continue;
2478
2479 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2480
2481 if (atomic_read(&fcport->port_down_timer) == 0)
2482 continue;
2483
2484 if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2485 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2486
2487 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2488 "%d remaining\n",
2489 ha->host_no,
2490 t, atomic_read(&fcport->port_down_timer)));
2491 }
2492 t++;
2493 } /* End of for fcport */
2494
2495
2496 /* Loop down handler. */
2497 if (atomic_read(&ha->loop_down_timer) > 0 &&
2498 !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2499
2500 if (atomic_read(&ha->loop_down_timer) ==
2501 ha->loop_down_abort_time) {
2502
2503 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2504 "queues before time expire\n",
2505 ha->host_no));
2506
2507 if (!IS_QLA2100(ha) && ha->link_down_timeout)
2508 atomic_set(&ha->loop_state, LOOP_DEAD);
2509
2510 /* Schedule an ISP abort to return any tape commands. */
2511 spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2512 for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2513 index++) {
2514 fc_port_t *sfcp;
2515
2516 sp = ha->outstanding_cmds[index];
2517 if (!sp)
2518 continue;
2519 sfcp = sp->fcport;
2520 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2521 continue;
2522
2523 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2524 break;
2525 }
2526 spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2527
2528 set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2529 start_dpc++;
2530 }
2531
2532 /* if the loop has been down for 4 minutes, reinit adapter */
2533 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2534 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2535 "restarting queues.\n",
2536 ha->host_no));
2537
2538 set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2539 start_dpc++;
2540
2541 if (!(ha->device_flags & DFLG_NO_CABLE)) {
2542 DEBUG(printk("scsi(%ld): Loop down - "
2543 "aborting ISP.\n",
2544 ha->host_no));
2545 qla_printk(KERN_WARNING, ha,
2546 "Loop down - aborting ISP.\n");
2547
2548 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2549 }
2550 }
2551 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2552 ha->host_no,
2553 atomic_read(&ha->loop_down_timer)));
2554 }
2555
2556 /* Check if beacon LED needs to be blinked */
2557 if (ha->beacon_blink_led == 1) {
2558 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2559 start_dpc++;
2560 }
2561
2562 /* Schedule the DPC routine if needed */
2563 if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2564 test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2565 test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2566 test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2567 start_dpc ||
2568 test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2569 test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2570 test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2571 test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2572 qla2xxx_wake_dpc(ha);
2573
2574 qla2x00_restart_timer(ha, WATCH_INTERVAL);
2575 }
2576
2577 /* XXX(hch): crude hack to emulate a down_timeout() */
2578 int
2579 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2580 {
2581 const unsigned int step = 100; /* msecs */
2582 unsigned int iterations = jiffies_to_msecs(timeout)/100;
2583
2584 do {
2585 if (!down_trylock(sema))
2586 return 0;
2587 if (msleep_interruptible(step))
2588 break;
2589 } while (--iterations >= 0);
2590
2591 return -ETIMEDOUT;
2592 }
2593
2594 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2595
2596 #define qla2x00_release_firmware() do { } while (0)
2597 #define qla2x00_pci_module_init() (0)
2598 #define qla2x00_pci_module_exit() do { } while (0)
2599
2600 #else /* !defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE) */
2601
2602 /* Firmware interface routines. */
2603
2604 #define FW_BLOBS 5
2605 #define FW_ISP21XX 0
2606 #define FW_ISP22XX 1
2607 #define FW_ISP2300 2
2608 #define FW_ISP2322 3
2609 #define FW_ISP24XX 4
2610
2611 static DECLARE_MUTEX(qla_fw_lock);
2612
2613 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2614 { .name = "ql2100_fw.bin", .segs = { 0x1000, 0 }, },
2615 { .name = "ql2200_fw.bin", .segs = { 0x1000, 0 }, },
2616 { .name = "ql2300_fw.bin", .segs = { 0x800, 0 }, },
2617 { .name = "ql2322_fw.bin", .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2618 { .name = "ql2400_fw.bin", },
2619 };
2620
2621 struct fw_blob *
2622 qla2x00_request_firmware(scsi_qla_host_t *ha)
2623 {
2624 struct fw_blob *blob;
2625
2626 blob = NULL;
2627 if (IS_QLA2100(ha)) {
2628 blob = &qla_fw_blobs[FW_ISP21XX];
2629 } else if (IS_QLA2200(ha)) {
2630 blob = &qla_fw_blobs[FW_ISP22XX];
2631 } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2632 blob = &qla_fw_blobs[FW_ISP2300];
2633 } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2634 blob = &qla_fw_blobs[FW_ISP2322];
2635 } else if (IS_QLA24XX(ha) || IS_QLA54XX(ha)) {
2636 blob = &qla_fw_blobs[FW_ISP24XX];
2637 }
2638
2639 down(&qla_fw_lock);
2640 if (blob->fw)
2641 goto out;
2642
2643 if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2644 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2645 "(%s).\n", ha->host_no, blob->name));
2646 blob->fw = NULL;
2647 blob = NULL;
2648 goto out;
2649 }
2650
2651 out:
2652 up(&qla_fw_lock);
2653 return blob;
2654 }
2655
2656 static void
2657 qla2x00_release_firmware(void)
2658 {
2659 int idx;
2660
2661 down(&qla_fw_lock);
2662 for (idx = 0; idx < FW_BLOBS; idx++)
2663 if (qla_fw_blobs[idx].fw)
2664 release_firmware(qla_fw_blobs[idx].fw);
2665 up(&qla_fw_lock);
2666 }
2667
2668 static struct qla_board_info qla_board_tbl = {
2669 .drv_name = "qla2xxx",
2670 };
2671
2672 static struct pci_device_id qla2xxx_pci_tbl[] = {
2673 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100,
2674 PCI_ANY_ID, PCI_ANY_ID, },
2675 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200,
2676 PCI_ANY_ID, PCI_ANY_ID, },
2677 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300,
2678 PCI_ANY_ID, PCI_ANY_ID, },
2679 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312,
2680 PCI_ANY_ID, PCI_ANY_ID, },
2681 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322,
2682 PCI_ANY_ID, PCI_ANY_ID, },
2683 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312,
2684 PCI_ANY_ID, PCI_ANY_ID, },
2685 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322,
2686 PCI_ANY_ID, PCI_ANY_ID, },
2687 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422,
2688 PCI_ANY_ID, PCI_ANY_ID, },
2689 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432,
2690 PCI_ANY_ID, PCI_ANY_ID, },
2691 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422,
2692 PCI_ANY_ID, PCI_ANY_ID, },
2693 { PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432,
2694 PCI_ANY_ID, PCI_ANY_ID, },
2695 { 0 },
2696 };
2697 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2698
2699 static int __devinit
2700 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2701 {
2702 return qla2x00_probe_one(pdev, &qla_board_tbl);
2703 }
2704
2705 static void __devexit
2706 qla2xxx_remove_one(struct pci_dev *pdev)
2707 {
2708 qla2x00_remove_one(pdev);
2709 }
2710
2711 static struct pci_driver qla2xxx_pci_driver = {
2712 .name = "qla2xxx",
2713 .driver = {
2714 .owner = THIS_MODULE,
2715 },
2716 .id_table = qla2xxx_pci_tbl,
2717 .probe = qla2xxx_probe_one,
2718 .remove = __devexit_p(qla2xxx_remove_one),
2719 };
2720
2721 static inline int
2722 qla2x00_pci_module_init(void)
2723 {
2724 return pci_module_init(&qla2xxx_pci_driver);
2725 }
2726
2727 static inline void
2728 qla2x00_pci_module_exit(void)
2729 {
2730 pci_unregister_driver(&qla2xxx_pci_driver);
2731 }
2732
2733 #endif
2734
2735 /**
2736 * qla2x00_module_init - Module initialization.
2737 **/
2738 static int __init
2739 qla2x00_module_init(void)
2740 {
2741 int ret = 0;
2742
2743 /* Allocate cache for SRBs. */
2744 srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2745 SLAB_HWCACHE_ALIGN, NULL, NULL);
2746 if (srb_cachep == NULL) {
2747 printk(KERN_ERR
2748 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2749 return -ENOMEM;
2750 }
2751
2752 /* Derive version string. */
2753 strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2754 #if defined(CONFIG_SCSI_QLA2XXX_EMBEDDED_FIRMWARE)
2755 strcat(qla2x00_version_str, "-fw");
2756 #endif
2757 #if DEBUG_QLA2100
2758 strcat(qla2x00_version_str, "-debug");
2759 #endif
2760 qla2xxx_transport_template =
2761 fc_attach_transport(&qla2xxx_transport_functions);
2762 if (!qla2xxx_transport_template)
2763 return -ENODEV;
2764
2765 printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2766 ret = qla2x00_pci_module_init();
2767 if (ret) {
2768 kmem_cache_destroy(srb_cachep);
2769 fc_release_transport(qla2xxx_transport_template);
2770 }
2771 return ret;
2772 }
2773
2774 /**
2775 * qla2x00_module_exit - Module cleanup.
2776 **/
2777 static void __exit
2778 qla2x00_module_exit(void)
2779 {
2780 qla2x00_pci_module_exit();
2781 qla2x00_release_firmware();
2782 kmem_cache_destroy(srb_cachep);
2783 fc_release_transport(qla2xxx_transport_template);
2784 }
2785
2786 module_init(qla2x00_module_init);
2787 module_exit(qla2x00_module_exit);
2788
2789 MODULE_AUTHOR("QLogic Corporation");
2790 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2791 MODULE_LICENSE("GPL");
2792 MODULE_VERSION(QLA2XXX_VERSION);
Community contributions to the Openmoko Kernel