[SCSI] update fc_transport for removal of block/unblock functions
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2005 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/smp_lock.h>
12 #include <linux/delay.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 int ql2xfwloadbin=1;
58 module_param(ql2xfwloadbin, int, S_IRUGO|S_IRUSR);
59 MODULE_PARM_DESC(ql2xfwloadbin,
60                 "Load ISP2xxx firmware image via hotplug.");
61
62 static void qla2x00_free_device(scsi_qla_host_t *);
63
64 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
65
66 int ql2xfdmienable;
67 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
68 MODULE_PARM_DESC(ql2xfdmienable,
69                 "Enables FDMI registratons "
70                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
71
72 /*
73  * SCSI host template entry points
74  */
75 static int qla2xxx_slave_configure(struct scsi_device * device);
76 static int qla2xxx_slave_alloc(struct scsi_device *);
77 static void qla2xxx_slave_destroy(struct scsi_device *);
78 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
79                 void (*fn)(struct scsi_cmnd *));
80 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
81                 void (*fn)(struct scsi_cmnd *));
82 static int qla2xxx_eh_abort(struct scsi_cmnd *);
83 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
84 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
85 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
86 static int qla2x00_loop_reset(scsi_qla_host_t *ha);
87 static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);
88
89 static int qla2x00_change_queue_depth(struct scsi_device *, int);
90 static int qla2x00_change_queue_type(struct scsi_device *, int);
91
92 static struct scsi_host_template qla2x00_driver_template = {
93         .module                 = THIS_MODULE,
94         .name                   = "qla2xxx",
95         .queuecommand           = qla2x00_queuecommand,
96
97         .eh_abort_handler       = qla2xxx_eh_abort,
98         .eh_device_reset_handler = qla2xxx_eh_device_reset,
99         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
100         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
101
102         .slave_configure        = qla2xxx_slave_configure,
103
104         .slave_alloc            = qla2xxx_slave_alloc,
105         .slave_destroy          = qla2xxx_slave_destroy,
106         .change_queue_depth     = qla2x00_change_queue_depth,
107         .change_queue_type      = qla2x00_change_queue_type,
108         .this_id                = -1,
109         .cmd_per_lun            = 3,
110         .use_clustering         = ENABLE_CLUSTERING,
111         .sg_tablesize           = SG_ALL,
112
113         /*
114          * The RISC allows for each command to transfer (2^32-1) bytes of data,
115          * which equates to 0x800000 sectors.
116          */
117         .max_sectors            = 0xFFFF,
118         .shost_attrs            = qla2x00_host_attrs,
119 };
120
121 static struct scsi_host_template qla24xx_driver_template = {
122         .module                 = THIS_MODULE,
123         .name                   = "qla2xxx",
124         .queuecommand           = qla24xx_queuecommand,
125
126         .eh_abort_handler       = qla2xxx_eh_abort,
127         .eh_device_reset_handler = qla2xxx_eh_device_reset,
128         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
129         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
130
131         .slave_configure        = qla2xxx_slave_configure,
132
133         .slave_alloc            = qla2xxx_slave_alloc,
134         .slave_destroy          = qla2xxx_slave_destroy,
135         .change_queue_depth     = qla2x00_change_queue_depth,
136         .change_queue_type      = qla2x00_change_queue_type,
137         .this_id                = -1,
138         .cmd_per_lun            = 3,
139         .use_clustering         = ENABLE_CLUSTERING,
140         .sg_tablesize           = SG_ALL,
141
142         .max_sectors            = 0xFFFF,
143         .shost_attrs            = qla2x00_host_attrs,
144 };
145
146 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
147
148 /* TODO Convert to inlines
149  *
150  * Timer routines
151  */
152 #define WATCH_INTERVAL          1       /* number of seconds */
153
154 static void qla2x00_timer(scsi_qla_host_t *);
155
156 static __inline__ void qla2x00_start_timer(scsi_qla_host_t *,
157     void *, unsigned long);
158 static __inline__ void qla2x00_restart_timer(scsi_qla_host_t *, unsigned long);
159 static __inline__ void qla2x00_stop_timer(scsi_qla_host_t *);
160
161 static inline void
162 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
163 {
164         init_timer(&ha->timer);
165         ha->timer.expires = jiffies + interval * HZ;
166         ha->timer.data = (unsigned long)ha;
167         ha->timer.function = (void (*)(unsigned long))func;
168         add_timer(&ha->timer);
169         ha->timer_active = 1;
170 }
171
172 static inline void
173 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
174 {
175         mod_timer(&ha->timer, jiffies + interval * HZ);
176 }
177
178 static __inline__ void
179 qla2x00_stop_timer(scsi_qla_host_t *ha)
180 {
181         del_timer_sync(&ha->timer);
182         ha->timer_active = 0;
183 }
184
185 static int qla2x00_do_dpc(void *data);
186
187 static void qla2x00_rst_aen(scsi_qla_host_t *);
188
189 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t *);
190 static void qla2x00_mem_free(scsi_qla_host_t *ha);
191 static int qla2x00_allocate_sp_pool( scsi_qla_host_t *ha);
192 static void qla2x00_free_sp_pool(scsi_qla_host_t *ha);
193 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
194 void qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *);
195
196 /* -------------------------------------------------------------------------- */
197
198 static char *
199 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
200 {
201         static char *pci_bus_modes[] = {
202                 "33", "66", "100", "133",
203         };
204         uint16_t pci_bus;
205
206         strcpy(str, "PCI");
207         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
208         if (pci_bus) {
209                 strcat(str, "-X (");
210                 strcat(str, pci_bus_modes[pci_bus]);
211         } else {
212                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
213                 strcat(str, " (");
214                 strcat(str, pci_bus_modes[pci_bus]);
215         }
216         strcat(str, " MHz)");
217
218         return (str);
219 }
220
221 static char *
222 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
223 {
224         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
225         uint32_t pci_bus;
226         int pcie_reg;
227
228         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
229         if (pcie_reg) {
230                 char lwstr[6];
231                 uint16_t pcie_lstat, lspeed, lwidth;
232
233                 pcie_reg += 0x12;
234                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
235                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
236                 lwidth = (pcie_lstat &
237                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
238
239                 strcpy(str, "PCIe (");
240                 if (lspeed == 1)
241                         strcat(str, "2.5Gb/s ");
242                 else
243                         strcat(str, "<unknown> ");
244                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
245                 strcat(str, lwstr);
246
247                 return str;
248         }
249
250         strcpy(str, "PCI");
251         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
252         if (pci_bus == 0 || pci_bus == 8) {
253                 strcat(str, " (");
254                 strcat(str, pci_bus_modes[pci_bus >> 3]);
255         } else {
256                 strcat(str, "-X ");
257                 if (pci_bus & BIT_2)
258                         strcat(str, "Mode 2");
259                 else
260                         strcat(str, "Mode 1");
261                 strcat(str, " (");
262                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
263         }
264         strcat(str, " MHz)");
265
266         return str;
267 }
268
269 char *
270 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
271 {
272         char un_str[10];
273
274         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
275             ha->fw_minor_version,
276             ha->fw_subminor_version);
277
278         if (ha->fw_attributes & BIT_9) {
279                 strcat(str, "FLX");
280                 return (str);
281         }
282
283         switch (ha->fw_attributes & 0xFF) {
284         case 0x7:
285                 strcat(str, "EF");
286                 break;
287         case 0x17:
288                 strcat(str, "TP");
289                 break;
290         case 0x37:
291                 strcat(str, "IP");
292                 break;
293         case 0x77:
294                 strcat(str, "VI");
295                 break;
296         default:
297                 sprintf(un_str, "(%x)", ha->fw_attributes);
298                 strcat(str, un_str);
299                 break;
300         }
301         if (ha->fw_attributes & 0x100)
302                 strcat(str, "X");
303
304         return (str);
305 }
306
307 char *
308 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
309 {
310         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
311             ha->fw_minor_version,
312             ha->fw_subminor_version);
313
314         if (ha->fw_attributes & BIT_0)
315                 strcat(str, "[Class 2] ");
316         if (ha->fw_attributes & BIT_1)
317                 strcat(str, "[IP] ");
318         if (ha->fw_attributes & BIT_2)
319                 strcat(str, "[Multi-ID] ");
320         if (ha->fw_attributes & BIT_13)
321                 strcat(str, "[Experimental]");
322         return str;
323 }
324
325 static inline srb_t *
326 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
327     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
328 {
329         srb_t *sp;
330
331         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
332         if (!sp)
333                 return sp;
334
335         atomic_set(&sp->ref_count, 1);
336         sp->ha = ha;
337         sp->fcport = fcport;
338         sp->cmd = cmd;
339         sp->flags = 0;
340         CMD_SP(cmd) = (void *)sp;
341         cmd->scsi_done = done;
342
343         return sp;
344 }
345
346 static int
347 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
348 {
349         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
350         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
351         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
352         srb_t *sp;
353         int rval;
354
355         rval = fc_remote_port_chkready(rport);
356         if (rval) {
357                 cmd->result = rval;
358                 goto qc_fail_command;
359         }
360
361         if (atomic_read(&fcport->state) != FCS_ONLINE) {
362                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
363                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
364                         cmd->result = DID_NO_CONNECT << 16;
365                         goto qc_fail_command;
366                 }
367                 goto qc_host_busy;
368         }
369
370         spin_unlock_irq(ha->host->host_lock);
371
372         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
373         if (!sp)
374                 goto qc_host_busy_lock;
375
376         rval = qla2x00_start_scsi(sp);
377         if (rval != QLA_SUCCESS)
378                 goto qc_host_busy_free_sp;
379
380         spin_lock_irq(ha->host->host_lock);
381
382         return 0;
383
384 qc_host_busy_free_sp:
385         qla2x00_sp_free_dma(ha, sp);
386         mempool_free(sp, ha->srb_mempool);
387
388 qc_host_busy_lock:
389         spin_lock_irq(ha->host->host_lock);
390
391 qc_host_busy:
392         return SCSI_MLQUEUE_HOST_BUSY;
393
394 qc_fail_command:
395         done(cmd);
396
397         return 0;
398 }
399
400
401 static int
402 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
403 {
404         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
405         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
406         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
407         srb_t *sp;
408         int rval;
409
410         rval = fc_remote_port_chkready(rport);
411         if (rval) {
412                 cmd->result = rval;
413                 goto qc24_fail_command;
414         }
415
416         if (atomic_read(&fcport->state) != FCS_ONLINE) {
417                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
418                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
419                         cmd->result = DID_NO_CONNECT << 16;
420                         goto qc24_fail_command;
421                 }
422                 goto qc24_host_busy;
423         }
424
425         spin_unlock_irq(ha->host->host_lock);
426
427         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
428         if (!sp)
429                 goto qc24_host_busy_lock;
430
431         rval = qla24xx_start_scsi(sp);
432         if (rval != QLA_SUCCESS)
433                 goto qc24_host_busy_free_sp;
434
435         spin_lock_irq(ha->host->host_lock);
436
437         return 0;
438
439 qc24_host_busy_free_sp:
440         qla2x00_sp_free_dma(ha, sp);
441         mempool_free(sp, ha->srb_mempool);
442
443 qc24_host_busy_lock:
444         spin_lock_irq(ha->host->host_lock);
445
446 qc24_host_busy:
447         return SCSI_MLQUEUE_HOST_BUSY;
448
449 qc24_fail_command:
450         done(cmd);
451
452         return 0;
453 }
454
455
456 /*
457  * qla2x00_eh_wait_on_command
458  *    Waits for the command to be returned by the Firmware for some
459  *    max time.
460  *
461  * Input:
462  *    ha = actual ha whose done queue will contain the command
463  *            returned by firmware.
464  *    cmd = Scsi Command to wait on.
465  *    flag = Abort/Reset(Bus or Device Reset)
466  *
467  * Return:
468  *    Not Found : 0
469  *    Found : 1
470  */
471 static int
472 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
473 {
474 #define ABORT_POLLING_PERIOD    1000
475 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
476         unsigned long wait_iter = ABORT_WAIT_ITER;
477         int ret = QLA_SUCCESS;
478
479         while (CMD_SP(cmd)) {
480                 msleep(ABORT_POLLING_PERIOD);
481
482                 if (--wait_iter)
483                         break;
484         }
485         if (CMD_SP(cmd))
486                 ret = QLA_FUNCTION_FAILED;
487
488         return ret;
489 }
490
491 /*
492  * qla2x00_wait_for_hba_online
493  *    Wait till the HBA is online after going through
494  *    <= MAX_RETRIES_OF_ISP_ABORT  or
495  *    finally HBA is disabled ie marked offline
496  *
497  * Input:
498  *     ha - pointer to host adapter structure
499  *
500  * Note:
501  *    Does context switching-Release SPIN_LOCK
502  *    (if any) before calling this routine.
503  *
504  * Return:
505  *    Success (Adapter is online) : 0
506  *    Failed  (Adapter is offline/disabled) : 1
507  */
508 static int
509 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
510 {
511         int             return_status;
512         unsigned long   wait_online;
513
514         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
515         while (((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) ||
516             test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) ||
517             test_bit(ISP_ABORT_RETRY, &ha->dpc_flags) ||
518             ha->dpc_active) && time_before(jiffies, wait_online)) {
519
520                 msleep(1000);
521         }
522         if (ha->flags.online)
523                 return_status = QLA_SUCCESS;
524         else
525                 return_status = QLA_FUNCTION_FAILED;
526
527         DEBUG2(printk("%s return_status=%d\n",__func__,return_status));
528
529         return (return_status);
530 }
531
532 /*
533  * qla2x00_wait_for_loop_ready
534  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
535  *    to be in LOOP_READY state.
536  * Input:
537  *     ha - pointer to host adapter structure
538  *
539  * Note:
540  *    Does context switching-Release SPIN_LOCK
541  *    (if any) before calling this routine.
542  *
543  *
544  * Return:
545  *    Success (LOOP_READY) : 0
546  *    Failed  (LOOP_NOT_READY) : 1
547  */
548 static inline int
549 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
550 {
551         int      return_status = QLA_SUCCESS;
552         unsigned long loop_timeout ;
553
554         /* wait for 5 min at the max for loop to be ready */
555         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
556
557         while ((!atomic_read(&ha->loop_down_timer) &&
558             atomic_read(&ha->loop_state) == LOOP_DOWN) ||
559             atomic_read(&ha->loop_state) != LOOP_READY) {
560                 msleep(1000);
561                 if (time_after_eq(jiffies, loop_timeout)) {
562                         return_status = QLA_FUNCTION_FAILED;
563                         break;
564                 }
565         }
566         return (return_status);
567 }
568
569 /**************************************************************************
570 * qla2xxx_eh_abort
571 *
572 * Description:
573 *    The abort function will abort the specified command.
574 *
575 * Input:
576 *    cmd = Linux SCSI command packet to be aborted.
577 *
578 * Returns:
579 *    Either SUCCESS or FAILED.
580 *
581 * Note:
582 **************************************************************************/
583 int
584 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
585 {
586         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
587         srb_t *sp;
588         int ret, i;
589         unsigned int id, lun;
590         unsigned long serial;
591         unsigned long flags;
592
593         if (!CMD_SP(cmd))
594                 return FAILED;
595
596         ret = FAILED;
597
598         id = cmd->device->id;
599         lun = cmd->device->lun;
600         serial = cmd->serial_number;
601
602         /* Check active list for command command. */
603         spin_lock_irqsave(&ha->hardware_lock, flags);
604         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
605                 sp = ha->outstanding_cmds[i];
606
607                 if (sp == NULL)
608                         continue;
609
610                 if (sp->cmd != cmd)
611                         continue;
612
613                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
614                     "sp->state=%x\n", __func__, ha->host_no, sp, serial,
615                     sp->state));
616                 DEBUG3(qla2x00_print_scsi_cmd(cmd);)
617
618                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
619                 if (ha->isp_ops.abort_command(ha, sp)) {
620                         DEBUG2(printk("%s(%ld): abort_command "
621                             "mbx failed.\n", __func__, ha->host_no));
622                 } else {
623                         DEBUG3(printk("%s(%ld): abort_command "
624                             "mbx success.\n", __func__, ha->host_no));
625                         ret = SUCCESS;
626                 }
627                 spin_lock_irqsave(&ha->hardware_lock, flags);
628
629                 break;
630         }
631         spin_unlock_irqrestore(&ha->hardware_lock, flags);
632
633         /* Wait for the command to be returned. */
634         if (ret == SUCCESS) {
635                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
636                         qla_printk(KERN_ERR, ha,
637                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
638                             "%x.\n", ha->host_no, id, lun, serial, ret);
639                 }
640         }
641
642         qla_printk(KERN_INFO, ha,
643             "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha->host_no,
644             id, lun, serial, ret);
645
646         return ret;
647 }
648
649 /**************************************************************************
650 * qla2x00_eh_wait_for_pending_target_commands
651 *
652 * Description:
653 *    Waits for all the commands to come back from the specified target.
654 *
655 * Input:
656 *    ha - pointer to scsi_qla_host structure.
657 *    t  - target
658 * Returns:
659 *    Either SUCCESS or FAILED.
660 *
661 * Note:
662 **************************************************************************/
663 static int
664 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t *ha, unsigned int t)
665 {
666         int     cnt;
667         int     status;
668         srb_t           *sp;
669         struct scsi_cmnd *cmd;
670         unsigned long flags;
671
672         status = 0;
673
674         /*
675          * Waiting for all commands for the designated target in the active
676          * array
677          */
678         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
679                 spin_lock_irqsave(&ha->hardware_lock, flags);
680                 sp = ha->outstanding_cmds[cnt];
681                 if (sp) {
682                         cmd = sp->cmd;
683                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
684                         if (cmd->device->id == t) {
685                                 if (!qla2x00_eh_wait_on_command(ha, cmd)) {
686                                         status = 1;
687                                         break;
688                                 }
689                         }
690                 } else {
691                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
692                 }
693         }
694         return (status);
695 }
696
697
698 /**************************************************************************
699 * qla2xxx_eh_device_reset
700 *
701 * Description:
702 *    The device reset function will reset the target and abort any
703 *    executing commands.
704 *
705 *    NOTE: The use of SP is undefined within this context.  Do *NOT*
706 *          attempt to use this value, even if you determine it is
707 *          non-null.
708 *
709 * Input:
710 *    cmd = Linux SCSI command packet of the command that cause the
711 *          bus device reset.
712 *
713 * Returns:
714 *    SUCCESS/FAILURE (defined as macro in scsi.h).
715 *
716 **************************************************************************/
717 int
718 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
719 {
720         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
721         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
722         srb_t *sp;
723         int ret;
724         unsigned int id, lun;
725         unsigned long serial;
726
727         ret = FAILED;
728
729         id = cmd->device->id;
730         lun = cmd->device->lun;
731         serial = cmd->serial_number;
732
733         sp = (srb_t *) CMD_SP(cmd);
734         if (!sp || !fcport)
735                 return ret;
736
737         qla_printk(KERN_INFO, ha,
738             "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha->host_no, id, lun);
739
740         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
741                 goto eh_dev_reset_done;
742
743         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
744                 if (qla2x00_device_reset(ha, fcport) == 0)
745                         ret = SUCCESS;
746
747 #if defined(LOGOUT_AFTER_DEVICE_RESET)
748                 if (ret == SUCCESS) {
749                         if (fcport->flags & FC_FABRIC_DEVICE) {
750                                 ha->isp_ops.fabric_logout(ha, fcport->loop_id);
751                                 qla2x00_mark_device_lost(ha, fcport);
752                         }
753                 }
754 #endif
755         } else {
756                 DEBUG2(printk(KERN_INFO
757                     "%s failed: loop not ready\n",__func__);)
758         }
759
760         if (ret == FAILED) {
761                 DEBUG3(printk("%s(%ld): device reset failed\n",
762                     __func__, ha->host_no));
763                 qla_printk(KERN_INFO, ha, "%s: device reset failed\n",
764                     __func__);
765
766                 goto eh_dev_reset_done;
767         }
768
769         /* Flush outstanding commands. */
770         if (qla2x00_eh_wait_for_pending_target_commands(ha, id))
771                 ret = FAILED;
772         if (ret == FAILED) {
773                 DEBUG3(printk("%s(%ld): failed while waiting for commands\n",
774                     __func__, ha->host_no));
775                 qla_printk(KERN_INFO, ha,
776                     "%s: failed while waiting for commands\n", __func__);
777         } else
778                 qla_printk(KERN_INFO, ha,
779                     "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha->host_no,
780                     id, lun);
781  eh_dev_reset_done:
782         return ret;
783 }
784
785 /**************************************************************************
786 * qla2x00_eh_wait_for_pending_commands
787 *
788 * Description:
789 *    Waits for all the commands to come back from the specified host.
790 *
791 * Input:
792 *    ha - pointer to scsi_qla_host structure.
793 *
794 * Returns:
795 *    1 : SUCCESS
796 *    0 : FAILED
797 *
798 * Note:
799 **************************************************************************/
800 static int
801 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha)
802 {
803         int     cnt;
804         int     status;
805         srb_t           *sp;
806         struct scsi_cmnd *cmd;
807         unsigned long flags;
808
809         status = 1;
810
811         /*
812          * Waiting for all commands for the designated target in the active
813          * array
814          */
815         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
816                 spin_lock_irqsave(&ha->hardware_lock, flags);
817                 sp = ha->outstanding_cmds[cnt];
818                 if (sp) {
819                         cmd = sp->cmd;
820                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
821                         status = qla2x00_eh_wait_on_command(ha, cmd);
822                         if (status == 0)
823                                 break;
824                 }
825                 else {
826                         spin_unlock_irqrestore(&ha->hardware_lock, flags);
827                 }
828         }
829         return (status);
830 }
831
832
833 /**************************************************************************
834 * qla2xxx_eh_bus_reset
835 *
836 * Description:
837 *    The bus reset function will reset the bus and abort any executing
838 *    commands.
839 *
840 * Input:
841 *    cmd = Linux SCSI command packet of the command that cause the
842 *          bus reset.
843 *
844 * Returns:
845 *    SUCCESS/FAILURE (defined as macro in scsi.h).
846 *
847 **************************************************************************/
848 int
849 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
850 {
851         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
852         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
853         srb_t *sp;
854         int ret;
855         unsigned int id, lun;
856         unsigned long serial;
857
858         ret = FAILED;
859
860         id = cmd->device->id;
861         lun = cmd->device->lun;
862         serial = cmd->serial_number;
863
864         sp = (srb_t *) CMD_SP(cmd);
865         if (!sp || !fcport)
866                 return ret;
867
868         qla_printk(KERN_INFO, ha,
869             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
870
871         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
872                 DEBUG2(printk("%s failed:board disabled\n",__func__));
873                 goto eh_bus_reset_done;
874         }
875
876         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
877                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
878                         ret = SUCCESS;
879         }
880         if (ret == FAILED)
881                 goto eh_bus_reset_done;
882
883         /* Flush outstanding commands. */
884         if (!qla2x00_eh_wait_for_pending_commands(ha))
885                 ret = FAILED;
886
887 eh_bus_reset_done:
888         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
889             (ret == FAILED) ? "failed" : "succeded");
890
891         return ret;
892 }
893
894 /**************************************************************************
895 * qla2xxx_eh_host_reset
896 *
897 * Description:
898 *    The reset function will reset the Adapter.
899 *
900 * Input:
901 *      cmd = Linux SCSI command packet of the command that cause the
902 *            adapter reset.
903 *
904 * Returns:
905 *      Either SUCCESS or FAILED.
906 *
907 * Note:
908 **************************************************************************/
909 int
910 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
911 {
912         scsi_qla_host_t *ha = to_qla_host(cmd->device->host);
913         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
914         srb_t *sp;
915         int ret;
916         unsigned int id, lun;
917         unsigned long serial;
918
919         ret = FAILED;
920
921         id = cmd->device->id;
922         lun = cmd->device->lun;
923         serial = cmd->serial_number;
924
925         sp = (srb_t *) CMD_SP(cmd);
926         if (!sp || !fcport)
927                 return ret;
928
929         qla_printk(KERN_INFO, ha,
930             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
931
932         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
933                 goto eh_host_reset_lock;
934
935         /*
936          * Fixme-may be dpc thread is active and processing
937          * loop_resync,so wait a while for it to
938          * be completed and then issue big hammer.Otherwise
939          * it may cause I/O failure as big hammer marks the
940          * devices as lost kicking of the port_down_timer
941          * while dpc is stuck for the mailbox to complete.
942          */
943         qla2x00_wait_for_loop_ready(ha);
944         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
945         if (qla2x00_abort_isp(ha)) {
946                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
947                 /* failed. schedule dpc to try */
948                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
949
950                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
951                         goto eh_host_reset_lock;
952         }
953         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
954
955         /* Waiting for our command in done_queue to be returned to OS.*/
956         if (qla2x00_eh_wait_for_pending_commands(ha))
957                 ret = SUCCESS;
958
959 eh_host_reset_lock:
960         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
961             (ret == FAILED) ? "failed" : "succeded");
962
963         return ret;
964 }
965
966 /*
967 * qla2x00_loop_reset
968 *      Issue loop reset.
969 *
970 * Input:
971 *      ha = adapter block pointer.
972 *
973 * Returns:
974 *      0 = success
975 */
976 static int
977 qla2x00_loop_reset(scsi_qla_host_t *ha)
978 {
979         int status = QLA_SUCCESS;
980         struct fc_port *fcport;
981
982         if (ha->flags.enable_lip_reset) {
983                 status = qla2x00_lip_reset(ha);
984         }
985
986         if (status == QLA_SUCCESS && ha->flags.enable_target_reset) {
987                 list_for_each_entry(fcport, &ha->fcports, list) {
988                         if (fcport->port_type != FCT_TARGET)
989                                 continue;
990
991                         status = qla2x00_device_reset(ha, fcport);
992                         if (status != QLA_SUCCESS)
993                                 break;
994                 }
995         }
996
997         if (status == QLA_SUCCESS &&
998                 ((!ha->flags.enable_target_reset &&
999                   !ha->flags.enable_lip_reset) ||
1000                 ha->flags.enable_lip_full_login)) {
1001
1002                 status = qla2x00_full_login_lip(ha);
1003         }
1004
1005         /* Issue marker command only when we are going to start the I/O */
1006         ha->marker_needed = 1;
1007
1008         if (status) {
1009                 /* Empty */
1010                 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
1011                                 __func__,
1012                                 ha->host_no);)
1013         } else {
1014                 /* Empty */
1015                 DEBUG3(printk("%s(%ld): exiting normally.\n",
1016                                 __func__,
1017                                 ha->host_no);)
1018         }
1019
1020         return(status);
1021 }
1022
1023 /*
1024  * qla2x00_device_reset
1025  *      Issue bus device reset message to the target.
1026  *
1027  * Input:
1028  *      ha = adapter block pointer.
1029  *      t = SCSI ID.
1030  *      TARGET_QUEUE_LOCK must be released.
1031  *      ADAPTER_STATE_LOCK must be released.
1032  *
1033  * Context:
1034  *      Kernel context.
1035  */
1036 static int
1037 qla2x00_device_reset(scsi_qla_host_t *ha, fc_port_t *reset_fcport)
1038 {
1039         /* Abort Target command will clear Reservation */
1040         return ha->isp_ops.abort_target(reset_fcport);
1041 }
1042
1043 static int
1044 qla2xxx_slave_alloc(struct scsi_device *sdev)
1045 {
1046         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1047
1048         if (!rport || fc_remote_port_chkready(rport))
1049                 return -ENXIO;
1050
1051         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1052
1053         return 0;
1054 }
1055
1056 static int
1057 qla2xxx_slave_configure(struct scsi_device *sdev)
1058 {
1059         scsi_qla_host_t *ha = to_qla_host(sdev->host);
1060         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1061
1062         if (sdev->tagged_supported)
1063                 scsi_activate_tcq(sdev, 32);
1064         else
1065                 scsi_deactivate_tcq(sdev, 32);
1066
1067         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1068
1069         return 0;
1070 }
1071
1072 static void
1073 qla2xxx_slave_destroy(struct scsi_device *sdev)
1074 {
1075         sdev->hostdata = NULL;
1076 }
1077
1078 static int
1079 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1080 {
1081         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1082         return sdev->queue_depth;
1083 }
1084
1085 static int
1086 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1087 {
1088         if (sdev->tagged_supported) {
1089                 scsi_set_tag_type(sdev, tag_type);
1090                 if (tag_type)
1091                         scsi_activate_tcq(sdev, sdev->queue_depth);
1092                 else
1093                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1094         } else
1095                 tag_type = 0;
1096
1097         return tag_type;
1098 }
1099
1100 /**
1101  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1102  * @ha: HA context
1103  *
1104  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1105  * supported addressing method.
1106  */
1107 static void
1108 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1109 {
1110         /* Assume a 32bit DMA mask. */
1111         ha->flags.enable_64bit_addressing = 0;
1112
1113         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1114                 /* Any upper-dword bits set? */
1115                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1116                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1117                         /* Ok, a 64bit DMA mask is applicable. */
1118                         ha->flags.enable_64bit_addressing = 1;
1119                         ha->isp_ops.calc_req_entries = qla2x00_calc_iocbs_64;
1120                         ha->isp_ops.build_iocbs = qla2x00_build_scsi_iocbs_64;
1121                         return;
1122                 }
1123         }
1124
1125         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1126         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1127 }
1128
1129 static int
1130 qla2x00_iospace_config(scsi_qla_host_t *ha)
1131 {
1132         unsigned long   pio, pio_len, pio_flags;
1133         unsigned long   mmio, mmio_len, mmio_flags;
1134
1135         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1136         pio = pci_resource_start(ha->pdev, 0);
1137         pio_len = pci_resource_len(ha->pdev, 0);
1138         pio_flags = pci_resource_flags(ha->pdev, 0);
1139         if (pio_flags & IORESOURCE_IO) {
1140                 if (pio_len < MIN_IOBASE_LEN) {
1141                         qla_printk(KERN_WARNING, ha,
1142                             "Invalid PCI I/O region size (%s)...\n",
1143                                 pci_name(ha->pdev));
1144                         pio = 0;
1145                 }
1146         } else {
1147                 qla_printk(KERN_WARNING, ha,
1148                     "region #0 not a PIO resource (%s)...\n",
1149                     pci_name(ha->pdev));
1150                 pio = 0;
1151         }
1152
1153         /* Use MMIO operations for all accesses. */
1154         mmio = pci_resource_start(ha->pdev, 1);
1155         mmio_len = pci_resource_len(ha->pdev, 1);
1156         mmio_flags = pci_resource_flags(ha->pdev, 1);
1157
1158         if (!(mmio_flags & IORESOURCE_MEM)) {
1159                 qla_printk(KERN_ERR, ha,
1160                     "region #0 not an MMIO resource (%s), aborting\n",
1161                     pci_name(ha->pdev));
1162                 goto iospace_error_exit;
1163         }
1164         if (mmio_len < MIN_IOBASE_LEN) {
1165                 qla_printk(KERN_ERR, ha,
1166                     "Invalid PCI mem region size (%s), aborting\n",
1167                         pci_name(ha->pdev));
1168                 goto iospace_error_exit;
1169         }
1170
1171         if (pci_request_regions(ha->pdev, ha->brd_info->drv_name)) {
1172                 qla_printk(KERN_WARNING, ha,
1173                     "Failed to reserve PIO/MMIO regions (%s)\n",
1174                     pci_name(ha->pdev));
1175
1176                 goto iospace_error_exit;
1177         }
1178
1179         ha->pio_address = pio;
1180         ha->pio_length = pio_len;
1181         ha->iobase = ioremap(mmio, MIN_IOBASE_LEN);
1182         if (!ha->iobase) {
1183                 qla_printk(KERN_ERR, ha,
1184                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1185
1186                 goto iospace_error_exit;
1187         }
1188
1189         return (0);
1190
1191 iospace_error_exit:
1192         return (-ENOMEM);
1193 }
1194
1195 static void
1196 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1197 {
1198         unsigned long flags = 0;
1199         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1200
1201         spin_lock_irqsave(&ha->hardware_lock, flags);
1202         ha->interrupts_on = 1;
1203         /* enable risc and host interrupts */
1204         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1205         RD_REG_WORD(&reg->ictrl);
1206         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1207
1208 }
1209
1210 static void
1211 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1212 {
1213         unsigned long flags = 0;
1214         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1215
1216         spin_lock_irqsave(&ha->hardware_lock, flags);
1217         ha->interrupts_on = 0;
1218         /* disable risc and host interrupts */
1219         WRT_REG_WORD(&reg->ictrl, 0);
1220         RD_REG_WORD(&reg->ictrl);
1221         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1222 }
1223
1224 static void
1225 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1226 {
1227         unsigned long flags = 0;
1228         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1229
1230         spin_lock_irqsave(&ha->hardware_lock, flags);
1231         ha->interrupts_on = 1;
1232         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1233         RD_REG_DWORD(&reg->ictrl);
1234         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1235 }
1236
1237 static void
1238 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1239 {
1240         unsigned long flags = 0;
1241         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1242
1243         spin_lock_irqsave(&ha->hardware_lock, flags);
1244         ha->interrupts_on = 0;
1245         WRT_REG_DWORD(&reg->ictrl, 0);
1246         RD_REG_DWORD(&reg->ictrl);
1247         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1248 }
1249
1250 /*
1251  * PCI driver interface
1252  */
1253 int qla2x00_probe_one(struct pci_dev *pdev, struct qla_board_info *brd_info)
1254 {
1255         int     ret = -ENODEV;
1256         device_reg_t __iomem *reg;
1257         struct Scsi_Host *host;
1258         scsi_qla_host_t *ha;
1259         unsigned long   flags = 0;
1260         unsigned long   wait_switch = 0;
1261         char pci_info[20];
1262         char fw_str[30];
1263         fc_port_t *fcport;
1264
1265         if (pci_enable_device(pdev))
1266                 goto probe_out;
1267
1268         host = scsi_host_alloc(brd_info->sht ? brd_info->sht:
1269             &qla2x00_driver_template, sizeof(scsi_qla_host_t));
1270         if (host == NULL) {
1271                 printk(KERN_WARNING
1272                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1273                 goto probe_disable_device;
1274         }
1275
1276         /* Clear our data area */
1277         ha = (scsi_qla_host_t *)host->hostdata;
1278         memset(ha, 0, sizeof(scsi_qla_host_t));
1279
1280         ha->pdev = pdev;
1281         ha->host = host;
1282         ha->host_no = host->host_no;
1283         ha->brd_info = brd_info;
1284         sprintf(ha->host_str, "%s_%ld", ha->brd_info->drv_name, ha->host_no);
1285
1286         ha->dpc_pid = -1;
1287
1288         /* Configure PCI I/O space */
1289         ret = qla2x00_iospace_config(ha);
1290         if (ret)
1291                 goto probe_failed;
1292
1293         qla_printk(KERN_INFO, ha,
1294             "Found an %s, irq %d, iobase 0x%p\n", ha->brd_info->isp_name,
1295             pdev->irq, ha->iobase);
1296
1297         spin_lock_init(&ha->hardware_lock);
1298
1299         ha->prev_topology = 0;
1300         ha->ports = MAX_BUSES;
1301         ha->init_cb_size = sizeof(init_cb_t);
1302         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
1303
1304         /* Assign ISP specific operations. */
1305         ha->isp_ops.pci_config          = qla2100_pci_config;
1306         ha->isp_ops.reset_chip          = qla2x00_reset_chip;
1307         ha->isp_ops.chip_diag           = qla2x00_chip_diag;
1308         ha->isp_ops.config_rings        = qla2x00_config_rings;
1309         ha->isp_ops.reset_adapter       = qla2x00_reset_adapter;
1310         ha->isp_ops.nvram_config        = qla2x00_nvram_config;
1311         ha->isp_ops.update_fw_options   = qla2x00_update_fw_options;
1312         ha->isp_ops.load_risc           = qla2x00_load_risc;
1313         ha->isp_ops.pci_info_str        = qla2x00_pci_info_str;
1314         ha->isp_ops.fw_version_str      = qla2x00_fw_version_str;
1315         ha->isp_ops.intr_handler        = qla2100_intr_handler;
1316         ha->isp_ops.enable_intrs        = qla2x00_enable_intrs;
1317         ha->isp_ops.disable_intrs       = qla2x00_disable_intrs;
1318         ha->isp_ops.abort_command       = qla2x00_abort_command;
1319         ha->isp_ops.abort_target        = qla2x00_abort_target;
1320         ha->isp_ops.fabric_login        = qla2x00_login_fabric;
1321         ha->isp_ops.fabric_logout       = qla2x00_fabric_logout;
1322         ha->isp_ops.calc_req_entries    = qla2x00_calc_iocbs_32;
1323         ha->isp_ops.build_iocbs         = qla2x00_build_scsi_iocbs_32;
1324         ha->isp_ops.prep_ms_iocb        = qla2x00_prep_ms_iocb;
1325         ha->isp_ops.prep_ms_fdmi_iocb   = qla2x00_prep_ms_fdmi_iocb;
1326         ha->isp_ops.read_nvram          = qla2x00_read_nvram_data;
1327         ha->isp_ops.write_nvram         = qla2x00_write_nvram_data;
1328         ha->isp_ops.fw_dump             = qla2100_fw_dump;
1329         ha->isp_ops.ascii_fw_dump       = qla2100_ascii_fw_dump;
1330         if (IS_QLA2100(ha)) {
1331                 host->max_id = MAX_TARGETS_2100;
1332                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1333                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1334                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1335                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1336                 host->sg_tablesize = 32;
1337                 ha->gid_list_info_size = 4;
1338         } else if (IS_QLA2200(ha)) {
1339                 host->max_id = MAX_TARGETS_2200;
1340                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1341                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1342                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1343                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1344                 ha->gid_list_info_size = 4;
1345         } else if (IS_QLA23XX(ha)) {
1346                 host->max_id = MAX_TARGETS_2200;
1347                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1348                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1349                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1350                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1351                 ha->isp_ops.pci_config = qla2300_pci_config;
1352                 ha->isp_ops.intr_handler = qla2300_intr_handler;
1353                 ha->isp_ops.fw_dump = qla2300_fw_dump;
1354                 ha->isp_ops.ascii_fw_dump = qla2300_ascii_fw_dump;
1355                 ha->gid_list_info_size = 6;
1356         } else if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1357                 host->max_id = MAX_TARGETS_2200;
1358                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1359                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1360                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1361                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1362                 ha->init_cb_size = sizeof(struct init_cb_24xx);
1363                 ha->mgmt_svr_loop_id = 10;
1364                 ha->isp_ops.pci_config = qla24xx_pci_config;
1365                 ha->isp_ops.reset_chip = qla24xx_reset_chip;
1366                 ha->isp_ops.chip_diag = qla24xx_chip_diag;
1367                 ha->isp_ops.config_rings = qla24xx_config_rings;
1368                 ha->isp_ops.reset_adapter = qla24xx_reset_adapter;
1369                 ha->isp_ops.nvram_config = qla24xx_nvram_config;
1370                 ha->isp_ops.update_fw_options = qla24xx_update_fw_options;
1371                 ha->isp_ops.load_risc = qla24xx_load_risc_flash;
1372                 if (ql2xfwloadbin)
1373                         ha->isp_ops.load_risc = qla24xx_load_risc_hotplug;
1374                 ha->isp_ops.pci_info_str = qla24xx_pci_info_str;
1375                 ha->isp_ops.fw_version_str = qla24xx_fw_version_str;
1376                 ha->isp_ops.intr_handler = qla24xx_intr_handler;
1377                 ha->isp_ops.enable_intrs = qla24xx_enable_intrs;
1378                 ha->isp_ops.disable_intrs = qla24xx_disable_intrs;
1379                 ha->isp_ops.abort_command = qla24xx_abort_command;
1380                 ha->isp_ops.abort_target = qla24xx_abort_target;
1381                 ha->isp_ops.fabric_login = qla24xx_login_fabric;
1382                 ha->isp_ops.fabric_logout = qla24xx_fabric_logout;
1383                 ha->isp_ops.prep_ms_iocb = qla24xx_prep_ms_iocb;
1384                 ha->isp_ops.prep_ms_fdmi_iocb = qla24xx_prep_ms_fdmi_iocb;
1385                 ha->isp_ops.read_nvram = qla24xx_read_nvram_data;
1386                 ha->isp_ops.write_nvram = qla24xx_write_nvram_data;
1387                 ha->isp_ops.fw_dump = qla24xx_fw_dump;
1388                 ha->isp_ops.ascii_fw_dump = qla24xx_ascii_fw_dump;
1389                 ha->gid_list_info_size = 8;
1390         }
1391         host->can_queue = ha->request_q_length + 128;
1392
1393         /* load the F/W, read paramaters, and init the H/W */
1394         ha->instance = num_hosts;
1395
1396         init_MUTEX(&ha->mbx_cmd_sem);
1397         init_MUTEX_LOCKED(&ha->mbx_intr_sem);
1398
1399         INIT_LIST_HEAD(&ha->list);
1400         INIT_LIST_HEAD(&ha->fcports);
1401         INIT_LIST_HEAD(&ha->rscn_fcports);
1402
1403         /*
1404          * These locks are used to prevent more than one CPU
1405          * from modifying the queue at the same time. The
1406          * higher level "host_lock" will reduce most
1407          * contention for these locks.
1408          */
1409         spin_lock_init(&ha->mbx_reg_lock);
1410
1411         init_completion(&ha->dpc_inited);
1412         init_completion(&ha->dpc_exited);
1413
1414         qla2x00_config_dma_addressing(ha);
1415         if (qla2x00_mem_alloc(ha)) {
1416                 qla_printk(KERN_WARNING, ha,
1417                     "[ERROR] Failed to allocate memory for adapter\n");
1418
1419                 ret = -ENOMEM;
1420                 goto probe_failed;
1421         }
1422
1423         if (qla2x00_initialize_adapter(ha) &&
1424             !(ha->device_flags & DFLG_NO_CABLE)) {
1425
1426                 qla_printk(KERN_WARNING, ha,
1427                     "Failed to initialize adapter\n");
1428
1429                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1430                     "Adapter flags %x.\n",
1431                     ha->host_no, ha->device_flags));
1432
1433                 ret = -ENODEV;
1434                 goto probe_failed;
1435         }
1436
1437         /*
1438          * Startup the kernel thread for this host adapter
1439          */
1440         ha->dpc_should_die = 0;
1441         ha->dpc_pid = kernel_thread(qla2x00_do_dpc, ha, 0);
1442         if (ha->dpc_pid < 0) {
1443                 qla_printk(KERN_WARNING, ha,
1444                     "Unable to start DPC thread!\n");
1445
1446                 ret = -ENODEV;
1447                 goto probe_failed;
1448         }
1449         wait_for_completion(&ha->dpc_inited);
1450
1451         host->this_id = 255;
1452         host->cmd_per_lun = 3;
1453         host->unique_id = ha->instance;
1454         host->max_cmd_len = MAX_CMDSZ;
1455         host->max_channel = ha->ports - 1;
1456         host->max_lun = MAX_LUNS;
1457         host->transportt = qla2xxx_transport_template;
1458
1459         ret = request_irq(pdev->irq, ha->isp_ops.intr_handler,
1460             SA_INTERRUPT|SA_SHIRQ, ha->brd_info->drv_name, ha);
1461         if (ret) {
1462                 qla_printk(KERN_WARNING, ha,
1463                     "Failed to reserve interrupt %d already in use.\n",
1464                     pdev->irq);
1465                 goto probe_failed;
1466         }
1467         host->irq = pdev->irq;
1468
1469         /* Initialized the timer */
1470         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1471
1472         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1473             ha->host_no, ha));
1474
1475         ha->isp_ops.disable_intrs(ha);
1476
1477         spin_lock_irqsave(&ha->hardware_lock, flags);
1478         reg = ha->iobase;
1479         if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) {
1480                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_HOST_INT);
1481                 WRT_REG_DWORD(&reg->isp24.hccr, HCCRX_CLR_RISC_INT);
1482         } else {
1483                 WRT_REG_WORD(&reg->isp.semaphore, 0);
1484                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_RISC_INT);
1485                 WRT_REG_WORD(&reg->isp.hccr, HCCR_CLR_HOST_INT);
1486
1487                 /* Enable proper parity */
1488                 if (!IS_QLA2100(ha) && !IS_QLA2200(ha)) {
1489                         if (IS_QLA2300(ha))
1490                                 /* SRAM parity */
1491                                 WRT_REG_WORD(&reg->isp.hccr,
1492                                     (HCCR_ENABLE_PARITY + 0x1));
1493                         else
1494                                 /* SRAM, Instruction RAM and GP RAM parity */
1495                                 WRT_REG_WORD(&reg->isp.hccr,
1496                                     (HCCR_ENABLE_PARITY + 0x7));
1497                 }
1498         }
1499         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1500
1501         ha->isp_ops.enable_intrs(ha);
1502
1503         /* v2.19.5b6 */
1504         /*
1505          * Wait around max loop_reset_delay secs for the devices to come
1506          * on-line. We don't want Linux scanning before we are ready.
1507          *
1508          */
1509         for (wait_switch = jiffies + (ha->loop_reset_delay * HZ);
1510             time_before(jiffies,wait_switch) &&
1511              !(ha->device_flags & (DFLG_NO_CABLE | DFLG_FABRIC_DEVICES))
1512              && (ha->device_flags & SWITCH_FOUND) ;) {
1513
1514                 qla2x00_check_fabric_devices(ha);
1515
1516                 msleep(10);
1517         }
1518
1519         pci_set_drvdata(pdev, ha);
1520         ha->flags.init_done = 1;
1521         num_hosts++;
1522
1523         ret = scsi_add_host(host, &pdev->dev);
1524         if (ret)
1525                 goto probe_failed;
1526
1527         qla2x00_alloc_sysfs_attr(ha);
1528
1529         qla2x00_init_host_attr(ha);
1530
1531         qla_printk(KERN_INFO, ha, "\n"
1532             " QLogic Fibre Channel HBA Driver: %s\n"
1533             "  QLogic %s - %s\n"
1534             "  %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str,
1535             ha->model_number, ha->model_desc ? ha->model_desc: "",
1536             ha->brd_info->isp_name, ha->isp_ops.pci_info_str(ha, pci_info),
1537             pci_name(pdev), ha->flags.enable_64bit_addressing ? '+': '-',
1538             ha->host_no, ha->isp_ops.fw_version_str(ha, fw_str));
1539
1540         /* Go with fc_rport registration. */
1541         list_for_each_entry(fcport, &ha->fcports, list)
1542                 qla2x00_reg_remote_port(ha, fcport);
1543
1544         return 0;
1545
1546 probe_failed:
1547         qla2x00_free_device(ha);
1548
1549         scsi_host_put(host);
1550
1551 probe_disable_device:
1552         pci_disable_device(pdev);
1553
1554 probe_out:
1555         return ret;
1556 }
1557 EXPORT_SYMBOL_GPL(qla2x00_probe_one);
1558
1559 void qla2x00_remove_one(struct pci_dev *pdev)
1560 {
1561         scsi_qla_host_t *ha;
1562
1563         ha = pci_get_drvdata(pdev);
1564
1565         qla2x00_free_sysfs_attr(ha);
1566
1567         fc_remove_host(ha->host);
1568
1569         scsi_remove_host(ha->host);
1570
1571         qla2x00_free_device(ha);
1572
1573         scsi_host_put(ha->host);
1574
1575         pci_set_drvdata(pdev, NULL);
1576 }
1577 EXPORT_SYMBOL_GPL(qla2x00_remove_one);
1578
1579 static void
1580 qla2x00_free_device(scsi_qla_host_t *ha)
1581 {
1582         int ret;
1583
1584         /* Abort any outstanding IO descriptors. */
1585         if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
1586                 qla2x00_cancel_io_descriptors(ha);
1587
1588         /* Disable timer */
1589         if (ha->timer_active)
1590                 qla2x00_stop_timer(ha);
1591
1592         /* Kill the kernel thread for this host */
1593         if (ha->dpc_pid >= 0) {
1594                 ha->dpc_should_die = 1;
1595                 wmb();
1596                 ret = kill_proc(ha->dpc_pid, SIGHUP, 1);
1597                 if (ret) {
1598                         qla_printk(KERN_ERR, ha,
1599                             "Unable to signal DPC thread -- (%d)\n", ret);
1600
1601                         /* TODO: SOMETHING MORE??? */
1602                 } else {
1603                         wait_for_completion(&ha->dpc_exited);
1604                 }
1605         }
1606
1607         /* Stop currently executing firmware. */
1608         qla2x00_stop_firmware(ha);
1609
1610         /* turn-off interrupts on the card */
1611         if (ha->interrupts_on)
1612                 ha->isp_ops.disable_intrs(ha);
1613
1614         qla2x00_mem_free(ha);
1615
1616         ha->flags.online = 0;
1617
1618         /* Detach interrupts */
1619         if (ha->pdev->irq)
1620                 free_irq(ha->pdev->irq, ha);
1621
1622         /* release io space registers  */
1623         if (ha->iobase)
1624                 iounmap(ha->iobase);
1625         pci_release_regions(ha->pdev);
1626
1627         pci_disable_device(ha->pdev);
1628 }
1629
1630 /*
1631  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1632  *
1633  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1634  *
1635  * Return: None.
1636  *
1637  * Context:
1638  */
1639 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1640     int do_login)
1641 {
1642         if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1643                 schedule_work(&fcport->rport_del_work);
1644
1645         /*
1646          * We may need to retry the login, so don't change the state of the
1647          * port but do the retries.
1648          */
1649         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1650                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1651
1652         if (!do_login)
1653                 return;
1654
1655         if (fcport->login_retry == 0) {
1656                 fcport->login_retry = ha->login_retry_count;
1657                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1658
1659                 DEBUG(printk("scsi(%ld): Port login retry: "
1660                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1661                     "id = 0x%04x retry cnt=%d\n",
1662                     ha->host_no,
1663                     fcport->port_name[0],
1664                     fcport->port_name[1],
1665                     fcport->port_name[2],
1666                     fcport->port_name[3],
1667                     fcport->port_name[4],
1668                     fcport->port_name[5],
1669                     fcport->port_name[6],
1670                     fcport->port_name[7],
1671                     fcport->loop_id,
1672                     fcport->login_retry));
1673         }
1674 }
1675
1676 /*
1677  * qla2x00_mark_all_devices_lost
1678  *      Updates fcport state when device goes offline.
1679  *
1680  * Input:
1681  *      ha = adapter block pointer.
1682  *      fcport = port structure pointer.
1683  *
1684  * Return:
1685  *      None.
1686  *
1687  * Context:
1688  */
1689 void
1690 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha)
1691 {
1692         fc_port_t *fcport;
1693
1694         list_for_each_entry(fcport, &ha->fcports, list) {
1695                 if (fcport->port_type != FCT_TARGET)
1696                         continue;
1697
1698                 /*
1699                  * No point in marking the device as lost, if the device is
1700                  * already DEAD.
1701                  */
1702                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1703                         continue;
1704                 if (atomic_read(&fcport->state) == FCS_ONLINE && fcport->rport)
1705                         schedule_work(&fcport->rport_del_work);
1706                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1707         }
1708 }
1709
1710 /*
1711 * qla2x00_mem_alloc
1712 *      Allocates adapter memory.
1713 *
1714 * Returns:
1715 *      0  = success.
1716 *      1  = failure.
1717 */
1718 static uint8_t
1719 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1720 {
1721         char    name[16];
1722         uint8_t   status = 1;
1723         int     retry= 10;
1724
1725         do {
1726                 /*
1727                  * This will loop only once if everything goes well, else some
1728                  * number of retries will be performed to get around a kernel
1729                  * bug where available mem is not allocated until after a
1730                  * little delay and a retry.
1731                  */
1732                 ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1733                     (ha->request_q_length + 1) * sizeof(request_t),
1734                     &ha->request_dma, GFP_KERNEL);
1735                 if (ha->request_ring == NULL) {
1736                         qla_printk(KERN_WARNING, ha,
1737                             "Memory Allocation failed - request_ring\n");
1738
1739                         qla2x00_mem_free(ha);
1740                         msleep(100);
1741
1742                         continue;
1743                 }
1744
1745                 ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1746                     (ha->response_q_length + 1) * sizeof(response_t),
1747                     &ha->response_dma, GFP_KERNEL);
1748                 if (ha->response_ring == NULL) {
1749                         qla_printk(KERN_WARNING, ha,
1750                             "Memory Allocation failed - response_ring\n");
1751
1752                         qla2x00_mem_free(ha);
1753                         msleep(100);
1754
1755                         continue;
1756                 }
1757
1758                 ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1759                     &ha->gid_list_dma, GFP_KERNEL);
1760                 if (ha->gid_list == NULL) {
1761                         qla_printk(KERN_WARNING, ha,
1762                             "Memory Allocation failed - gid_list\n");
1763
1764                         qla2x00_mem_free(ha);
1765                         msleep(100);
1766
1767                         continue;
1768                 }
1769
1770                 ha->rlc_rsp = dma_alloc_coherent(&ha->pdev->dev,
1771                     sizeof(rpt_lun_cmd_rsp_t), &ha->rlc_rsp_dma, GFP_KERNEL);
1772                 if (ha->rlc_rsp == NULL) {
1773                         qla_printk(KERN_WARNING, ha,
1774                                 "Memory Allocation failed - rlc");
1775
1776                         qla2x00_mem_free(ha);
1777                         msleep(100);
1778
1779                         continue;
1780                 }
1781
1782                 snprintf(name, sizeof(name), "qla2xxx_%ld", ha->host_no);
1783                 ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1784                     DMA_POOL_SIZE, 8, 0);
1785                 if (ha->s_dma_pool == NULL) {
1786                         qla_printk(KERN_WARNING, ha,
1787                             "Memory Allocation failed - s_dma_pool\n");
1788
1789                         qla2x00_mem_free(ha);
1790                         msleep(100);
1791
1792                         continue;
1793                 }
1794
1795                 /* get consistent memory allocated for init control block */
1796                 ha->init_cb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1797                     &ha->init_cb_dma);
1798                 if (ha->init_cb == NULL) {
1799                         qla_printk(KERN_WARNING, ha,
1800                             "Memory Allocation failed - init_cb\n");
1801
1802                         qla2x00_mem_free(ha);
1803                         msleep(100);
1804
1805                         continue;
1806                 }
1807                 memset(ha->init_cb, 0, ha->init_cb_size);
1808
1809                 /* Get consistent memory allocated for Get Port Database cmd */
1810                 ha->iodesc_pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1811                     &ha->iodesc_pd_dma);
1812                 if (ha->iodesc_pd == NULL) {
1813                         /* error */
1814                         qla_printk(KERN_WARNING, ha,
1815                             "Memory Allocation failed - iodesc_pd\n");
1816
1817                         qla2x00_mem_free(ha);
1818                         msleep(100);
1819
1820                         continue;
1821                 }
1822                 memset(ha->iodesc_pd, 0, PORT_DATABASE_SIZE);
1823
1824                 /* Allocate ioctl related memory. */
1825                 if (qla2x00_alloc_ioctl_mem(ha)) {
1826                         qla_printk(KERN_WARNING, ha,
1827                             "Memory Allocation failed - ioctl_mem\n");
1828
1829                         qla2x00_mem_free(ha);
1830                         msleep(100);
1831
1832                         continue;
1833                 }
1834
1835                 if (qla2x00_allocate_sp_pool(ha)) {
1836                         qla_printk(KERN_WARNING, ha,
1837                             "Memory Allocation failed - "
1838                             "qla2x00_allocate_sp_pool()\n");
1839
1840                         qla2x00_mem_free(ha);
1841                         msleep(100);
1842
1843                         continue;
1844                 }
1845
1846                 /* Allocate memory for SNS commands */
1847                 if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1848                         /* Get consistent memory allocated for SNS commands */
1849                         ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1850                             sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma,
1851                             GFP_KERNEL);
1852                         if (ha->sns_cmd == NULL) {
1853                                 /* error */
1854                                 qla_printk(KERN_WARNING, ha,
1855                                     "Memory Allocation failed - sns_cmd\n");
1856
1857                                 qla2x00_mem_free(ha);
1858                                 msleep(100);
1859
1860                                 continue;
1861                         }
1862                         memset(ha->sns_cmd, 0, sizeof(struct sns_cmd_pkt));
1863                 } else {
1864                         /* Get consistent memory allocated for MS IOCB */
1865                         ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1866                             &ha->ms_iocb_dma);
1867                         if (ha->ms_iocb == NULL) {
1868                                 /* error */
1869                                 qla_printk(KERN_WARNING, ha,
1870                                     "Memory Allocation failed - ms_iocb\n");
1871
1872                                 qla2x00_mem_free(ha);
1873                                 msleep(100);
1874
1875                                 continue;
1876                         }
1877                         memset(ha->ms_iocb, 0, sizeof(ms_iocb_entry_t));
1878
1879                         /*
1880                          * Get consistent memory allocated for CT SNS
1881                          * commands
1882                          */
1883                         ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1884                             sizeof(struct ct_sns_pkt), &ha->ct_sns_dma,
1885                             GFP_KERNEL);
1886                         if (ha->ct_sns == NULL) {
1887                                 /* error */
1888                                 qla_printk(KERN_WARNING, ha,
1889                                     "Memory Allocation failed - ct_sns\n");
1890
1891                                 qla2x00_mem_free(ha);
1892                                 msleep(100);
1893
1894                                 continue;
1895                         }
1896                         memset(ha->ct_sns, 0, sizeof(struct ct_sns_pkt));
1897                 }
1898
1899                 /* Done all allocations without any error. */
1900                 status = 0;
1901
1902         } while (retry-- && status != 0);
1903
1904         if (status) {
1905                 printk(KERN_WARNING
1906                         "%s(): **** FAILED ****\n", __func__);
1907         }
1908
1909         return(status);
1910 }
1911
1912 /*
1913 * qla2x00_mem_free
1914 *      Frees all adapter allocated memory.
1915 *
1916 * Input:
1917 *      ha = adapter block pointer.
1918 */
1919 static void
1920 qla2x00_mem_free(scsi_qla_host_t *ha)
1921 {
1922         struct list_head        *fcpl, *fcptemp;
1923         fc_port_t       *fcport;
1924         unsigned int    wtime;/* max wait time if mbx cmd is busy. */
1925
1926         if (ha == NULL) {
1927                 /* error */
1928                 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__));
1929                 return;
1930         }
1931
1932         /* Make sure all other threads are stopped. */
1933         wtime = 60 * 1000;
1934         while (ha->dpc_wait && wtime)
1935                 wtime = msleep_interruptible(wtime);
1936
1937         /* free ioctl memory */
1938         qla2x00_free_ioctl_mem(ha);
1939
1940         /* free sp pool */
1941         qla2x00_free_sp_pool(ha);
1942
1943         if (ha->sns_cmd)
1944                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
1945                     ha->sns_cmd, ha->sns_cmd_dma);
1946
1947         if (ha->ct_sns)
1948                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
1949                     ha->ct_sns, ha->ct_sns_dma);
1950
1951         if (ha->ms_iocb)
1952                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
1953
1954         if (ha->iodesc_pd)
1955                 dma_pool_free(ha->s_dma_pool, ha->iodesc_pd, ha->iodesc_pd_dma);
1956
1957         if (ha->init_cb)
1958                 dma_pool_free(ha->s_dma_pool, ha->init_cb, ha->init_cb_dma);
1959
1960         if (ha->s_dma_pool)
1961                 dma_pool_destroy(ha->s_dma_pool);
1962
1963         if (ha->rlc_rsp)
1964                 dma_free_coherent(&ha->pdev->dev,
1965                     sizeof(rpt_lun_cmd_rsp_t), ha->rlc_rsp,
1966                     ha->rlc_rsp_dma);
1967
1968         if (ha->gid_list)
1969                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
1970                     ha->gid_list_dma);
1971
1972         if (ha->response_ring)
1973                 dma_free_coherent(&ha->pdev->dev,
1974                     (ha->response_q_length + 1) * sizeof(response_t),
1975                     ha->response_ring, ha->response_dma);
1976
1977         if (ha->request_ring)
1978                 dma_free_coherent(&ha->pdev->dev,
1979                     (ha->request_q_length + 1) * sizeof(request_t),
1980                     ha->request_ring, ha->request_dma);
1981
1982         ha->sns_cmd = NULL;
1983         ha->sns_cmd_dma = 0;
1984         ha->ct_sns = NULL;
1985         ha->ct_sns_dma = 0;
1986         ha->ms_iocb = NULL;
1987         ha->ms_iocb_dma = 0;
1988         ha->iodesc_pd = NULL;
1989         ha->iodesc_pd_dma = 0;
1990         ha->init_cb = NULL;
1991         ha->init_cb_dma = 0;
1992
1993         ha->s_dma_pool = NULL;
1994
1995         ha->rlc_rsp = NULL;
1996         ha->rlc_rsp_dma = 0;
1997         ha->gid_list = NULL;
1998         ha->gid_list_dma = 0;
1999
2000         ha->response_ring = NULL;
2001         ha->response_dma = 0;
2002         ha->request_ring = NULL;
2003         ha->request_dma = 0;
2004
2005         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2006                 fcport = list_entry(fcpl, fc_port_t, list);
2007
2008                 /* fc ports */
2009                 list_del_init(&fcport->list);
2010                 kfree(fcport);
2011         }
2012         INIT_LIST_HEAD(&ha->fcports);
2013
2014         if (ha->fw_dump)
2015                 free_pages((unsigned long)ha->fw_dump, ha->fw_dump_order);
2016
2017         vfree(ha->fw_dump24);
2018
2019         vfree(ha->fw_dump_buffer);
2020
2021         ha->fw_dump = NULL;
2022         ha->fw_dump24 = NULL;
2023         ha->fw_dumped = 0;
2024         ha->fw_dump_reading = 0;
2025         ha->fw_dump_buffer = NULL;
2026 }
2027
2028 /*
2029  * qla2x00_allocate_sp_pool
2030  *       This routine is called during initialization to allocate
2031  *       memory for local srb_t.
2032  *
2033  * Input:
2034  *       ha   = adapter block pointer.
2035  *
2036  * Context:
2037  *      Kernel context.
2038  *
2039  * Note: Sets the ref_count for non Null sp to one.
2040  */
2041 static int
2042 qla2x00_allocate_sp_pool(scsi_qla_host_t *ha)
2043 {
2044         int      rval;
2045
2046         rval = QLA_SUCCESS;
2047         ha->srb_mempool = mempool_create(SRB_MIN_REQ, mempool_alloc_slab,
2048             mempool_free_slab, srb_cachep);
2049         if (ha->srb_mempool == NULL) {
2050                 qla_printk(KERN_INFO, ha, "Unable to allocate SRB mempool.\n");
2051                 rval = QLA_FUNCTION_FAILED;
2052         }
2053         return (rval);
2054 }
2055
2056 /*
2057  *  This routine frees all adapter allocated memory.
2058  *
2059  */
2060 static void
2061 qla2x00_free_sp_pool( scsi_qla_host_t *ha)
2062 {
2063         if (ha->srb_mempool) {
2064                 mempool_destroy(ha->srb_mempool);
2065                 ha->srb_mempool = NULL;
2066         }
2067 }
2068
2069 /**************************************************************************
2070 * qla2x00_do_dpc
2071 *   This kernel thread is a task that is schedule by the interrupt handler
2072 *   to perform the background processing for interrupts.
2073 *
2074 * Notes:
2075 * This task always run in the context of a kernel thread.  It
2076 * is kick-off by the driver's detect code and starts up
2077 * up one per adapter. It immediately goes to sleep and waits for
2078 * some fibre event.  When either the interrupt handler or
2079 * the timer routine detects a event it will one of the task
2080 * bits then wake us up.
2081 **************************************************************************/
2082 static int
2083 qla2x00_do_dpc(void *data)
2084 {
2085         DECLARE_MUTEX_LOCKED(sem);
2086         scsi_qla_host_t *ha;
2087         fc_port_t       *fcport;
2088         uint8_t         status;
2089         uint16_t        next_loopid;
2090
2091         ha = (scsi_qla_host_t *)data;
2092
2093         lock_kernel();
2094
2095         daemonize("%s_dpc", ha->host_str);
2096         allow_signal(SIGHUP);
2097
2098         ha->dpc_wait = &sem;
2099
2100         set_user_nice(current, -20);
2101
2102         unlock_kernel();
2103
2104         complete(&ha->dpc_inited);
2105
2106         while (1) {
2107                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2108
2109                 if (down_interruptible(&sem))
2110                         break;
2111
2112                 if (ha->dpc_should_die)
2113                         break;
2114
2115                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2116
2117                 /* Initialization not yet finished. Don't do anything yet. */
2118                 if (!ha->flags.init_done || ha->dpc_active)
2119                         continue;
2120
2121                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2122
2123                 ha->dpc_active = 1;
2124
2125                 if (ha->flags.mbox_busy) {
2126                         ha->dpc_active = 0;
2127                         continue;
2128                 }
2129
2130                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2131
2132                         DEBUG(printk("scsi(%ld): dpc: sched "
2133                             "qla2x00_abort_isp ha = %p\n",
2134                             ha->host_no, ha));
2135                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2136                             &ha->dpc_flags))) {
2137
2138                                 if (qla2x00_abort_isp(ha)) {
2139                                         /* failed. retry later */
2140                                         set_bit(ISP_ABORT_NEEDED,
2141                                             &ha->dpc_flags);
2142                                 }
2143                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2144                         }
2145                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2146                             ha->host_no));
2147                 }
2148
2149                 if (test_and_clear_bit(LOOP_RESET_NEEDED, &ha->dpc_flags)) {
2150                         DEBUG(printk("scsi(%ld): dpc: sched loop_reset()\n",
2151                             ha->host_no));
2152                         qla2x00_loop_reset(ha);
2153                 }
2154
2155                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2156                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2157
2158                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2159                             ha->host_no));
2160
2161                         qla2x00_rst_aen(ha);
2162                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2163                 }
2164
2165                 /* Retry each device up to login retry count */
2166                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2167                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2168                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2169
2170                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2171                             ha->host_no));
2172
2173                         next_loopid = 0;
2174                         list_for_each_entry(fcport, &ha->fcports, list) {
2175                                 if (fcport->port_type != FCT_TARGET)
2176                                         continue;
2177
2178                                 /*
2179                                  * If the port is not ONLINE then try to login
2180                                  * to it if we haven't run out of retries.
2181                                  */
2182                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2183                                     fcport->login_retry) {
2184
2185                                         fcport->login_retry--;
2186                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2187                                                 if (fcport->flags &
2188                                                     FCF_TAPE_PRESENT)
2189                                                         ha->isp_ops.fabric_logout(
2190                                                             ha, fcport->loop_id,
2191                                                             fcport->d_id.b.domain,
2192                                                             fcport->d_id.b.area,
2193                                                             fcport->d_id.b.al_pa);
2194                                                 status = qla2x00_fabric_login(
2195                                                     ha, fcport, &next_loopid);
2196                                         } else
2197                                                 status =
2198                                                     qla2x00_local_device_login(
2199                                                         ha, fcport->loop_id);
2200
2201                                         if (status == QLA_SUCCESS) {
2202                                                 fcport->old_loop_id = fcport->loop_id;
2203
2204                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2205                                                     ha->host_no, fcport->loop_id));
2206
2207                                                 fcport->port_login_retry_count =
2208                                                     ha->port_down_retry_count * PORT_RETRY_TIME;
2209                                                 atomic_set(&fcport->state, FCS_ONLINE);
2210                                                 atomic_set(&fcport->port_down_timer,
2211                                                     ha->port_down_retry_count * PORT_RETRY_TIME);
2212
2213                                                 fcport->login_retry = 0;
2214                                         } else if (status == 1) {
2215                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2216                                                 /* retry the login again */
2217                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2218                                                     ha->host_no,
2219                                                     fcport->login_retry, fcport->loop_id));
2220                                         } else {
2221                                                 fcport->login_retry = 0;
2222                                         }
2223                                 }
2224                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2225                                         break;
2226                         }
2227                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2228                             ha->host_no));
2229                 }
2230
2231                 if ((test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags)) &&
2232                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2233
2234                         clear_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags);
2235                         DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2236                             ha->host_no));
2237
2238                         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
2239
2240                         DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2241                             ha->host_no));
2242                 }
2243
2244                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2245
2246                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2247                             ha->host_no));
2248
2249                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2250                             &ha->dpc_flags))) {
2251
2252                                 qla2x00_loop_resync(ha);
2253
2254                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2255                         }
2256
2257                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2258                             ha->host_no));
2259                 }
2260
2261                 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED, &ha->dpc_flags)) {
2262
2263                         DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2264                             ha->host_no));
2265
2266                         qla2x00_rescan_fcports(ha);
2267
2268                         DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2269                             "end.\n",
2270                             ha->host_no));
2271                 }
2272
2273                 if (!ha->interrupts_on)
2274                         ha->isp_ops.enable_intrs(ha);
2275
2276                 ha->dpc_active = 0;
2277         } /* End of while(1) */
2278
2279         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2280
2281         /*
2282          * Make sure that nobody tries to wake us up again.
2283          */
2284         ha->dpc_wait = NULL;
2285         ha->dpc_active = 0;
2286
2287         complete_and_exit(&ha->dpc_exited, 0);
2288 }
2289
2290 /*
2291 *  qla2x00_rst_aen
2292 *      Processes asynchronous reset.
2293 *
2294 * Input:
2295 *      ha  = adapter block pointer.
2296 */
2297 static void
2298 qla2x00_rst_aen(scsi_qla_host_t *ha)
2299 {
2300         if (ha->flags.online && !ha->flags.reset_active &&
2301             !atomic_read(&ha->loop_down_timer) &&
2302             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2303                 do {
2304                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2305
2306                         /*
2307                          * Issue marker command only when we are going to start
2308                          * the I/O.
2309                          */
2310                         ha->marker_needed = 1;
2311                 } while (!atomic_read(&ha->loop_down_timer) &&
2312                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2313         }
2314 }
2315
2316 static void
2317 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2318 {
2319         struct scsi_cmnd *cmd = sp->cmd;
2320
2321         if (sp->flags & SRB_DMA_VALID) {
2322                 if (cmd->use_sg) {
2323                         dma_unmap_sg(&ha->pdev->dev, cmd->request_buffer,
2324                             cmd->use_sg, cmd->sc_data_direction);
2325                 } else if (cmd->request_bufflen) {
2326                         dma_unmap_single(&ha->pdev->dev, sp->dma_handle,
2327                             cmd->request_bufflen, cmd->sc_data_direction);
2328                 }
2329                 sp->flags &= ~SRB_DMA_VALID;
2330         }
2331         CMD_SP(cmd) = NULL;
2332 }
2333
2334 void
2335 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2336 {
2337         struct scsi_cmnd *cmd = sp->cmd;
2338
2339         qla2x00_sp_free_dma(ha, sp);
2340
2341         mempool_free(sp, ha->srb_mempool);
2342
2343         cmd->scsi_done(cmd);
2344 }
2345
2346 /**************************************************************************
2347 *   qla2x00_timer
2348 *
2349 * Description:
2350 *   One second timer
2351 *
2352 * Context: Interrupt
2353 ***************************************************************************/
2354 static void
2355 qla2x00_timer(scsi_qla_host_t *ha)
2356 {
2357         unsigned long   cpu_flags = 0;
2358         fc_port_t       *fcport;
2359         int             start_dpc = 0;
2360         int             index;
2361         srb_t           *sp;
2362         int             t;
2363
2364         /*
2365          * Ports - Port down timer.
2366          *
2367          * Whenever, a port is in the LOST state we start decrementing its port
2368          * down timer every second until it reaches zero. Once  it reaches zero
2369          * the port it marked DEAD.
2370          */
2371         t = 0;
2372         list_for_each_entry(fcport, &ha->fcports, list) {
2373                 if (fcport->port_type != FCT_TARGET)
2374                         continue;
2375
2376                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2377
2378                         if (atomic_read(&fcport->port_down_timer) == 0)
2379                                 continue;
2380
2381                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2382                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2383
2384                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2385                             "%d remaining\n",
2386                             ha->host_no,
2387                             t, atomic_read(&fcport->port_down_timer)));
2388                 }
2389                 t++;
2390         } /* End of for fcport  */
2391
2392
2393         /* Loop down handler. */
2394         if (atomic_read(&ha->loop_down_timer) > 0 &&
2395             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2396
2397                 if (atomic_read(&ha->loop_down_timer) ==
2398                     ha->loop_down_abort_time) {
2399
2400                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2401                             "queues before time expire\n",
2402                             ha->host_no));
2403
2404                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2405                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2406
2407                         /* Schedule an ISP abort to return any tape commands. */
2408                         spin_lock_irqsave(&ha->hardware_lock, cpu_flags);
2409                         for (index = 1; index < MAX_OUTSTANDING_COMMANDS;
2410                             index++) {
2411                                 fc_port_t *sfcp;
2412
2413                                 sp = ha->outstanding_cmds[index];
2414                                 if (!sp)
2415                                         continue;
2416                                 sfcp = sp->fcport;
2417                                 if (!(sfcp->flags & FCF_TAPE_PRESENT))
2418                                         continue;
2419
2420                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2421                                 break;
2422                         }
2423                         spin_unlock_irqrestore(&ha->hardware_lock, cpu_flags);
2424
2425                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2426                         start_dpc++;
2427                 }
2428
2429                 /* if the loop has been down for 4 minutes, reinit adapter */
2430                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2431                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2432                             "restarting queues.\n",
2433                             ha->host_no));
2434
2435                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2436                         start_dpc++;
2437
2438                         if (!(ha->device_flags & DFLG_NO_CABLE)) {
2439                                 DEBUG(printk("scsi(%ld): Loop down - "
2440                                     "aborting ISP.\n",
2441                                     ha->host_no));
2442                                 qla_printk(KERN_WARNING, ha,
2443                                     "Loop down - aborting ISP.\n");
2444
2445                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2446                         }
2447                 }
2448                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2449                     ha->host_no,
2450                     atomic_read(&ha->loop_down_timer)));
2451         }
2452
2453         /* Schedule the DPC routine if needed */
2454         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2455             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2456             test_bit(LOOP_RESET_NEEDED, &ha->dpc_flags) ||
2457             start_dpc ||
2458             test_bit(LOGIN_RETRY_NEEDED, &ha->dpc_flags) ||
2459             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2460             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2461             ha->dpc_wait && !ha->dpc_active) {
2462
2463                 up(ha->dpc_wait);
2464         }
2465
2466         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2467 }
2468
2469 /* XXX(hch): crude hack to emulate a down_timeout() */
2470 int
2471 qla2x00_down_timeout(struct semaphore *sema, unsigned long timeout)
2472 {
2473         const unsigned int step = 100; /* msecs */
2474         unsigned int iterations = jiffies_to_msecs(timeout)/100;
2475
2476         do {
2477                 if (!down_trylock(sema))
2478                         return 0;
2479                 if (msleep_interruptible(step))
2480                         break;
2481         } while (--iterations >= 0);
2482
2483         return -ETIMEDOUT;
2484 }
2485
2486 static struct qla_board_info qla_board_tbl[] = {
2487         {
2488                 .drv_name       = "qla2400",
2489                 .isp_name       = "ISP2422",
2490                 .fw_fname       = "ql2400_fw.bin",
2491                 .sht            = &qla24xx_driver_template,
2492         },
2493         {
2494                 .drv_name       = "qla2400",
2495                 .isp_name       = "ISP2432",
2496                 .fw_fname       = "ql2400_fw.bin",
2497                 .sht            = &qla24xx_driver_template,
2498         },
2499 };
2500
2501 static struct pci_device_id qla2xxx_pci_tbl[] = {
2502         {
2503                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2504                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2422,
2505                 .subvendor      = PCI_ANY_ID,
2506                 .subdevice      = PCI_ANY_ID,
2507                 .driver_data    = (unsigned long)&qla_board_tbl[0],
2508         },
2509         {
2510                 .vendor         = PCI_VENDOR_ID_QLOGIC,
2511                 .device         = PCI_DEVICE_ID_QLOGIC_ISP2432,
2512                 .subvendor      = PCI_ANY_ID,
2513                 .subdevice      = PCI_ANY_ID,
2514                 .driver_data    = (unsigned long)&qla_board_tbl[1],
2515         },
2516         {0, 0},
2517 };
2518 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2519
2520 static int __devinit
2521 qla2xxx_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
2522 {
2523         return qla2x00_probe_one(pdev,
2524             (struct qla_board_info *)id->driver_data);
2525 }
2526
2527 static void __devexit
2528 qla2xxx_remove_one(struct pci_dev *pdev)
2529 {
2530         qla2x00_remove_one(pdev);
2531 }
2532
2533 static struct pci_driver qla2xxx_pci_driver = {
2534         .name           = "qla2xxx",
2535         .id_table       = qla2xxx_pci_tbl,
2536         .probe          = qla2xxx_probe_one,
2537         .remove         = __devexit_p(qla2xxx_remove_one),
2538 };
2539
2540 /**
2541  * qla2x00_module_init - Module initialization.
2542  **/
2543 static int __init
2544 qla2x00_module_init(void)
2545 {
2546         int ret = 0;
2547
2548         /* Allocate cache for SRBs. */
2549         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2550             SLAB_HWCACHE_ALIGN, NULL, NULL);
2551         if (srb_cachep == NULL) {
2552                 printk(KERN_ERR
2553                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2554                 return -ENOMEM;
2555         }
2556
2557         /* Derive version string. */
2558         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2559 #if DEBUG_QLA2100
2560         strcat(qla2x00_version_str, "-debug");
2561 #endif
2562         qla2xxx_transport_template =
2563             fc_attach_transport(&qla2xxx_transport_functions);
2564         if (!qla2xxx_transport_template)
2565                 return -ENODEV;
2566
2567         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2568         ret = pci_module_init(&qla2xxx_pci_driver);
2569         if (ret) {
2570                 kmem_cache_destroy(srb_cachep);
2571                 fc_release_transport(qla2xxx_transport_template);
2572         }
2573         return ret;
2574 }
2575
2576 /**
2577  * qla2x00_module_exit - Module cleanup.
2578  **/
2579 static void __exit
2580 qla2x00_module_exit(void)
2581 {
2582         pci_unregister_driver(&qla2xxx_pci_driver);
2583         kmem_cache_destroy(srb_cachep);
2584         fc_release_transport(qla2xxx_transport_template);
2585 }
2586
2587 module_init(qla2x00_module_init);
2588 module_exit(qla2x00_module_exit);
2589
2590 MODULE_AUTHOR("QLogic Corporation");
2591 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2592 MODULE_LICENSE("GPL");
2593 MODULE_VERSION(QLA2XXX_VERSION);