[SCSI] qla2xxx: qla_os.c, make 2 functions static
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2008 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13
14 #include <scsi/scsi_tcq.h>
15 #include <scsi/scsicam.h>
16 #include <scsi/scsi_transport.h>
17 #include <scsi/scsi_transport_fc.h>
18
19 /*
20  * Driver version
21  */
22 char qla2x00_version_str[40];
23
24 /*
25  * SRB allocation cache
26  */
27 static struct kmem_cache *srb_cachep;
28
29 int num_hosts;
30 int ql2xlogintimeout = 20;
31 module_param(ql2xlogintimeout, int, S_IRUGO|S_IRUSR);
32 MODULE_PARM_DESC(ql2xlogintimeout,
33                 "Login timeout value in seconds.");
34
35 int qlport_down_retry;
36 module_param(qlport_down_retry, int, S_IRUGO|S_IRUSR);
37 MODULE_PARM_DESC(qlport_down_retry,
38                 "Maximum number of command retries to a port that returns "
39                 "a PORT-DOWN status.");
40
41 int ql2xplogiabsentdevice;
42 module_param(ql2xplogiabsentdevice, int, S_IRUGO|S_IWUSR);
43 MODULE_PARM_DESC(ql2xplogiabsentdevice,
44                 "Option to enable PLOGI to devices that are not present after "
45                 "a Fabric scan.  This is needed for several broken switches. "
46                 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
47
48 int ql2xloginretrycount = 0;
49 module_param(ql2xloginretrycount, int, S_IRUGO|S_IRUSR);
50 MODULE_PARM_DESC(ql2xloginretrycount,
51                 "Specify an alternate value for the NVRAM login retry count.");
52
53 int ql2xallocfwdump = 1;
54 module_param(ql2xallocfwdump, int, S_IRUGO|S_IRUSR);
55 MODULE_PARM_DESC(ql2xallocfwdump,
56                 "Option to enable allocation of memory for a firmware dump "
57                 "during HBA initialization.  Memory allocation requirements "
58                 "vary by ISP type.  Default is 1 - allocate memory.");
59
60 int ql2xextended_error_logging;
61 module_param(ql2xextended_error_logging, int, S_IRUGO|S_IWUSR);
62 MODULE_PARM_DESC(ql2xextended_error_logging,
63                 "Option to enable extended error logging, "
64                 "Default is 0 - no logging. 1 - log errors.");
65
66 static void qla2x00_free_device(scsi_qla_host_t *);
67
68 static void qla2x00_config_dma_addressing(scsi_qla_host_t *ha);
69
70 int ql2xfdmienable=1;
71 module_param(ql2xfdmienable, int, S_IRUGO|S_IRUSR);
72 MODULE_PARM_DESC(ql2xfdmienable,
73                 "Enables FDMI registratons "
74                 "Default is 0 - no FDMI. 1 - perfom FDMI.");
75
76 #define MAX_Q_DEPTH    32
77 static int ql2xmaxqdepth = MAX_Q_DEPTH;
78 module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
79 MODULE_PARM_DESC(ql2xmaxqdepth,
80                 "Maximum queue depth to report for target devices.");
81
82 int ql2xqfullrampup = 120;
83 module_param(ql2xqfullrampup, int, S_IRUGO|S_IWUSR);
84 MODULE_PARM_DESC(ql2xqfullrampup,
85                 "Number of seconds to wait to begin to ramp-up the queue "
86                 "depth for a device after a queue-full condition has been "
87                 "detected.  Default is 120 seconds.");
88
89 /*
90  * SCSI host template entry points
91  */
92 static int qla2xxx_slave_configure(struct scsi_device * device);
93 static int qla2xxx_slave_alloc(struct scsi_device *);
94 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
95 static void qla2xxx_scan_start(struct Scsi_Host *);
96 static void qla2xxx_slave_destroy(struct scsi_device *);
97 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
98                 void (*fn)(struct scsi_cmnd *));
99 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
100                 void (*fn)(struct scsi_cmnd *));
101 static int qla2xxx_eh_abort(struct scsi_cmnd *);
102 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
103 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
104 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
105 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
106
107 static int qla2x00_change_queue_depth(struct scsi_device *, int);
108 static int qla2x00_change_queue_type(struct scsi_device *, int);
109
110 static struct scsi_host_template qla2x00_driver_template = {
111         .module                 = THIS_MODULE,
112         .name                   = QLA2XXX_DRIVER_NAME,
113         .queuecommand           = qla2x00_queuecommand,
114
115         .eh_abort_handler       = qla2xxx_eh_abort,
116         .eh_device_reset_handler = qla2xxx_eh_device_reset,
117         .eh_target_reset_handler = qla2xxx_eh_target_reset,
118         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
119         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
120
121         .slave_configure        = qla2xxx_slave_configure,
122
123         .slave_alloc            = qla2xxx_slave_alloc,
124         .slave_destroy          = qla2xxx_slave_destroy,
125         .scan_finished          = qla2xxx_scan_finished,
126         .scan_start             = qla2xxx_scan_start,
127         .change_queue_depth     = qla2x00_change_queue_depth,
128         .change_queue_type      = qla2x00_change_queue_type,
129         .this_id                = -1,
130         .cmd_per_lun            = 3,
131         .use_clustering         = ENABLE_CLUSTERING,
132         .sg_tablesize           = SG_ALL,
133
134         /*
135          * The RISC allows for each command to transfer (2^32-1) bytes of data,
136          * which equates to 0x800000 sectors.
137          */
138         .max_sectors            = 0xFFFF,
139         .shost_attrs            = qla2x00_host_attrs,
140 };
141
142 struct scsi_host_template qla24xx_driver_template = {
143         .module                 = THIS_MODULE,
144         .name                   = QLA2XXX_DRIVER_NAME,
145         .queuecommand           = qla24xx_queuecommand,
146
147         .eh_abort_handler       = qla2xxx_eh_abort,
148         .eh_device_reset_handler = qla2xxx_eh_device_reset,
149         .eh_target_reset_handler = qla2xxx_eh_target_reset,
150         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
151         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
152
153         .slave_configure        = qla2xxx_slave_configure,
154
155         .slave_alloc            = qla2xxx_slave_alloc,
156         .slave_destroy          = qla2xxx_slave_destroy,
157         .scan_finished          = qla2xxx_scan_finished,
158         .scan_start             = qla2xxx_scan_start,
159         .change_queue_depth     = qla2x00_change_queue_depth,
160         .change_queue_type      = qla2x00_change_queue_type,
161         .this_id                = -1,
162         .cmd_per_lun            = 3,
163         .use_clustering         = ENABLE_CLUSTERING,
164         .sg_tablesize           = SG_ALL,
165
166         .max_sectors            = 0xFFFF,
167         .shost_attrs            = qla2x00_host_attrs,
168 };
169
170 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
171 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
172
173 /* TODO Convert to inlines
174  *
175  * Timer routines
176  */
177
178 __inline__ void
179 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
180 {
181         init_timer(&ha->timer);
182         ha->timer.expires = jiffies + interval * HZ;
183         ha->timer.data = (unsigned long)ha;
184         ha->timer.function = (void (*)(unsigned long))func;
185         add_timer(&ha->timer);
186         ha->timer_active = 1;
187 }
188
189 static inline void
190 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
191 {
192         mod_timer(&ha->timer, jiffies + interval * HZ);
193 }
194
195 static __inline__ void
196 qla2x00_stop_timer(scsi_qla_host_t *ha)
197 {
198         del_timer_sync(&ha->timer);
199         ha->timer_active = 0;
200 }
201
202 static int qla2x00_do_dpc(void *data);
203
204 static void qla2x00_rst_aen(scsi_qla_host_t *);
205
206 static int qla2x00_mem_alloc(scsi_qla_host_t *);
207 static void qla2x00_mem_free(scsi_qla_host_t *ha);
208 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
209
210 /* -------------------------------------------------------------------------- */
211
212 static char *
213 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
214 {
215         static char *pci_bus_modes[] = {
216                 "33", "66", "100", "133",
217         };
218         uint16_t pci_bus;
219
220         strcpy(str, "PCI");
221         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
222         if (pci_bus) {
223                 strcat(str, "-X (");
224                 strcat(str, pci_bus_modes[pci_bus]);
225         } else {
226                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
227                 strcat(str, " (");
228                 strcat(str, pci_bus_modes[pci_bus]);
229         }
230         strcat(str, " MHz)");
231
232         return (str);
233 }
234
235 static char *
236 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
237 {
238         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
239         uint32_t pci_bus;
240         int pcie_reg;
241
242         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
243         if (pcie_reg) {
244                 char lwstr[6];
245                 uint16_t pcie_lstat, lspeed, lwidth;
246
247                 pcie_reg += 0x12;
248                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
249                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
250                 lwidth = (pcie_lstat &
251                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
252
253                 strcpy(str, "PCIe (");
254                 if (lspeed == 1)
255                         strcat(str, "2.5GT/s ");
256                 else if (lspeed == 2)
257                         strcat(str, "5.0GT/s ");
258                 else
259                         strcat(str, "<unknown> ");
260                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
261                 strcat(str, lwstr);
262
263                 return str;
264         }
265
266         strcpy(str, "PCI");
267         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
268         if (pci_bus == 0 || pci_bus == 8) {
269                 strcat(str, " (");
270                 strcat(str, pci_bus_modes[pci_bus >> 3]);
271         } else {
272                 strcat(str, "-X ");
273                 if (pci_bus & BIT_2)
274                         strcat(str, "Mode 2");
275                 else
276                         strcat(str, "Mode 1");
277                 strcat(str, " (");
278                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
279         }
280         strcat(str, " MHz)");
281
282         return str;
283 }
284
285 static char *
286 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
287 {
288         char un_str[10];
289
290         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
291             ha->fw_minor_version,
292             ha->fw_subminor_version);
293
294         if (ha->fw_attributes & BIT_9) {
295                 strcat(str, "FLX");
296                 return (str);
297         }
298
299         switch (ha->fw_attributes & 0xFF) {
300         case 0x7:
301                 strcat(str, "EF");
302                 break;
303         case 0x17:
304                 strcat(str, "TP");
305                 break;
306         case 0x37:
307                 strcat(str, "IP");
308                 break;
309         case 0x77:
310                 strcat(str, "VI");
311                 break;
312         default:
313                 sprintf(un_str, "(%x)", ha->fw_attributes);
314                 strcat(str, un_str);
315                 break;
316         }
317         if (ha->fw_attributes & 0x100)
318                 strcat(str, "X");
319
320         return (str);
321 }
322
323 static char *
324 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
325 {
326         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
327             ha->fw_minor_version,
328             ha->fw_subminor_version);
329
330         if (ha->fw_attributes & BIT_0)
331                 strcat(str, "[Class 2] ");
332         if (ha->fw_attributes & BIT_1)
333                 strcat(str, "[IP] ");
334         if (ha->fw_attributes & BIT_2)
335                 strcat(str, "[Multi-ID] ");
336         if (ha->fw_attributes & BIT_3)
337                 strcat(str, "[SB-2] ");
338         if (ha->fw_attributes & BIT_4)
339                 strcat(str, "[T10 CRC] ");
340         if (ha->fw_attributes & BIT_5)
341                 strcat(str, "[VI] ");
342         if (ha->fw_attributes & BIT_10)
343                 strcat(str, "[84XX] ");
344         if (ha->fw_attributes & BIT_13)
345                 strcat(str, "[Experimental]");
346         return str;
347 }
348
349 static inline srb_t *
350 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
351     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
352 {
353         srb_t *sp;
354
355         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
356         if (!sp)
357                 return sp;
358
359         sp->ha = ha;
360         sp->fcport = fcport;
361         sp->cmd = cmd;
362         sp->flags = 0;
363         CMD_SP(cmd) = (void *)sp;
364         cmd->scsi_done = done;
365
366         return sp;
367 }
368
369 static int
370 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
371 {
372         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
373         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
374         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
375         srb_t *sp;
376         int rval;
377
378         if (unlikely(pci_channel_offline(ha->pdev))) {
379                 cmd->result = DID_REQUEUE << 16;
380                 goto qc_fail_command;
381         }
382
383         rval = fc_remote_port_chkready(rport);
384         if (rval) {
385                 cmd->result = rval;
386                 goto qc_fail_command;
387         }
388
389         /* Close window on fcport/rport state-transitioning. */
390         if (!*(fc_port_t **)rport->dd_data) {
391                 cmd->result = DID_IMM_RETRY << 16;
392                 goto qc_fail_command;
393         }
394
395         if (atomic_read(&fcport->state) != FCS_ONLINE) {
396                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
397                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
398                         cmd->result = DID_NO_CONNECT << 16;
399                         goto qc_fail_command;
400                 }
401                 goto qc_host_busy;
402         }
403
404         spin_unlock_irq(ha->host->host_lock);
405
406         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
407         if (!sp)
408                 goto qc_host_busy_lock;
409
410         rval = qla2x00_start_scsi(sp);
411         if (rval != QLA_SUCCESS)
412                 goto qc_host_busy_free_sp;
413
414         spin_lock_irq(ha->host->host_lock);
415
416         return 0;
417
418 qc_host_busy_free_sp:
419         qla2x00_sp_free_dma(ha, sp);
420         mempool_free(sp, ha->srb_mempool);
421
422 qc_host_busy_lock:
423         spin_lock_irq(ha->host->host_lock);
424
425 qc_host_busy:
426         return SCSI_MLQUEUE_HOST_BUSY;
427
428 qc_fail_command:
429         done(cmd);
430
431         return 0;
432 }
433
434
435 static int
436 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
437 {
438         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
439         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
440         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
441         srb_t *sp;
442         int rval;
443         scsi_qla_host_t *pha = to_qla_parent(ha);
444
445         if (unlikely(pci_channel_offline(ha->pdev))) {
446                 cmd->result = DID_REQUEUE << 16;
447                 goto qc24_fail_command;
448         }
449
450         rval = fc_remote_port_chkready(rport);
451         if (rval) {
452                 cmd->result = rval;
453                 goto qc24_fail_command;
454         }
455
456         /* Close window on fcport/rport state-transitioning. */
457         if (!*(fc_port_t **)rport->dd_data) {
458                 cmd->result = DID_IMM_RETRY << 16;
459                 goto qc24_fail_command;
460         }
461
462         if (atomic_read(&fcport->state) != FCS_ONLINE) {
463                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
464                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
465                         cmd->result = DID_NO_CONNECT << 16;
466                         goto qc24_fail_command;
467                 }
468                 goto qc24_host_busy;
469         }
470
471         spin_unlock_irq(ha->host->host_lock);
472
473         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
474         if (!sp)
475                 goto qc24_host_busy_lock;
476
477         rval = qla24xx_start_scsi(sp);
478         if (rval != QLA_SUCCESS)
479                 goto qc24_host_busy_free_sp;
480
481         spin_lock_irq(ha->host->host_lock);
482
483         return 0;
484
485 qc24_host_busy_free_sp:
486         qla2x00_sp_free_dma(pha, sp);
487         mempool_free(sp, pha->srb_mempool);
488
489 qc24_host_busy_lock:
490         spin_lock_irq(ha->host->host_lock);
491
492 qc24_host_busy:
493         return SCSI_MLQUEUE_HOST_BUSY;
494
495 qc24_fail_command:
496         done(cmd);
497
498         return 0;
499 }
500
501
502 /*
503  * qla2x00_eh_wait_on_command
504  *    Waits for the command to be returned by the Firmware for some
505  *    max time.
506  *
507  * Input:
508  *    ha = actual ha whose done queue will contain the command
509  *            returned by firmware.
510  *    cmd = Scsi Command to wait on.
511  *    flag = Abort/Reset(Bus or Device Reset)
512  *
513  * Return:
514  *    Not Found : 0
515  *    Found : 1
516  */
517 static int
518 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
519 {
520 #define ABORT_POLLING_PERIOD    1000
521 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
522         unsigned long wait_iter = ABORT_WAIT_ITER;
523         int ret = QLA_SUCCESS;
524
525         while (CMD_SP(cmd)) {
526                 msleep(ABORT_POLLING_PERIOD);
527
528                 if (--wait_iter)
529                         break;
530         }
531         if (CMD_SP(cmd))
532                 ret = QLA_FUNCTION_FAILED;
533
534         return ret;
535 }
536
537 /*
538  * qla2x00_wait_for_hba_online
539  *    Wait till the HBA is online after going through
540  *    <= MAX_RETRIES_OF_ISP_ABORT  or
541  *    finally HBA is disabled ie marked offline
542  *
543  * Input:
544  *     ha - pointer to host adapter structure
545  *
546  * Note:
547  *    Does context switching-Release SPIN_LOCK
548  *    (if any) before calling this routine.
549  *
550  * Return:
551  *    Success (Adapter is online) : 0
552  *    Failed  (Adapter is offline/disabled) : 1
553  */
554 int
555 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
556 {
557         int             return_status;
558         unsigned long   wait_online;
559         scsi_qla_host_t *pha = to_qla_parent(ha);
560
561         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
562         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
563             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
564             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
565             pha->dpc_active) && time_before(jiffies, wait_online)) {
566
567                 msleep(1000);
568         }
569         if (pha->flags.online)
570                 return_status = QLA_SUCCESS;
571         else
572                 return_status = QLA_FUNCTION_FAILED;
573
574         return (return_status);
575 }
576
577 /*
578  * qla2x00_wait_for_loop_ready
579  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
580  *    to be in LOOP_READY state.
581  * Input:
582  *     ha - pointer to host adapter structure
583  *
584  * Note:
585  *    Does context switching-Release SPIN_LOCK
586  *    (if any) before calling this routine.
587  *
588  *
589  * Return:
590  *    Success (LOOP_READY) : 0
591  *    Failed  (LOOP_NOT_READY) : 1
592  */
593 static inline int
594 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
595 {
596         int      return_status = QLA_SUCCESS;
597         unsigned long loop_timeout ;
598         scsi_qla_host_t *pha = to_qla_parent(ha);
599
600         /* wait for 5 min at the max for loop to be ready */
601         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
602
603         while ((!atomic_read(&pha->loop_down_timer) &&
604             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
605             atomic_read(&pha->loop_state) != LOOP_READY) {
606                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
607                         return_status = QLA_FUNCTION_FAILED;
608                         break;
609                 }
610                 msleep(1000);
611                 if (time_after_eq(jiffies, loop_timeout)) {
612                         return_status = QLA_FUNCTION_FAILED;
613                         break;
614                 }
615         }
616         return (return_status);
617 }
618
619 static void
620 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
621 {
622         struct Scsi_Host *shost = cmnd->device->host;
623         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
624         unsigned long flags;
625
626         spin_lock_irqsave(shost->host_lock, flags);
627         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
628                 spin_unlock_irqrestore(shost->host_lock, flags);
629                 msleep(1000);
630                 spin_lock_irqsave(shost->host_lock, flags);
631         }
632         spin_unlock_irqrestore(shost->host_lock, flags);
633         return;
634 }
635
636 /**************************************************************************
637 * qla2xxx_eh_abort
638 *
639 * Description:
640 *    The abort function will abort the specified command.
641 *
642 * Input:
643 *    cmd = Linux SCSI command packet to be aborted.
644 *
645 * Returns:
646 *    Either SUCCESS or FAILED.
647 *
648 * Note:
649 *    Only return FAILED if command not returned by firmware.
650 **************************************************************************/
651 static int
652 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
653 {
654         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
655         srb_t *sp;
656         int ret, i;
657         unsigned int id, lun;
658         unsigned long serial;
659         unsigned long flags;
660         int wait = 0;
661         scsi_qla_host_t *pha = to_qla_parent(ha);
662
663         qla2x00_block_error_handler(cmd);
664
665         if (!CMD_SP(cmd))
666                 return SUCCESS;
667
668         ret = SUCCESS;
669
670         id = cmd->device->id;
671         lun = cmd->device->lun;
672         serial = cmd->serial_number;
673
674         /* Check active list for command command. */
675         spin_lock_irqsave(&pha->hardware_lock, flags);
676         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
677                 sp = pha->outstanding_cmds[i];
678
679                 if (sp == NULL)
680                         continue;
681
682                 if (sp->cmd != cmd)
683                         continue;
684
685                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
686                     __func__, ha->host_no, sp, serial));
687
688                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
689                 if (ha->isp_ops->abort_command(ha, sp)) {
690                         DEBUG2(printk("%s(%ld): abort_command "
691                             "mbx failed.\n", __func__, ha->host_no));
692                 } else {
693                         DEBUG3(printk("%s(%ld): abort_command "
694                             "mbx success.\n", __func__, ha->host_no));
695                         wait = 1;
696                 }
697                 spin_lock_irqsave(&pha->hardware_lock, flags);
698
699                 break;
700         }
701         spin_unlock_irqrestore(&pha->hardware_lock, flags);
702
703         /* Wait for the command to be returned. */
704         if (wait) {
705                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
706                         qla_printk(KERN_ERR, ha,
707                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
708                             "%x.\n", ha->host_no, id, lun, serial, ret);
709                         ret = FAILED;
710                 }
711         }
712
713         qla_printk(KERN_INFO, ha,
714             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
715             ha->host_no, id, lun, wait, serial, ret);
716
717         return ret;
718 }
719
720 enum nexus_wait_type {
721         WAIT_HOST = 0,
722         WAIT_TARGET,
723         WAIT_LUN,
724 };
725
726 static int
727 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
728     unsigned int l, enum nexus_wait_type type)
729 {
730         int cnt, match, status;
731         srb_t *sp;
732         unsigned long flags;
733         scsi_qla_host_t *pha = to_qla_parent(ha);
734
735         status = QLA_SUCCESS;
736         spin_lock_irqsave(&pha->hardware_lock, flags);
737         for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
738             cnt++) {
739                 sp = pha->outstanding_cmds[cnt];
740                 if (!sp)
741                         continue;
742                 if (ha->vp_idx != sp->ha->vp_idx)
743                         continue;
744                 match = 0;
745                 switch (type) {
746                 case WAIT_HOST:
747                         match = 1;
748                         break;
749                 case WAIT_TARGET:
750                         match = sp->cmd->device->id == t;
751                         break;
752                 case WAIT_LUN:
753                         match = (sp->cmd->device->id == t &&
754                             sp->cmd->device->lun == l);
755                         break;
756                 }
757                 if (!match)
758                         continue;
759
760                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
761                 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
762                 spin_lock_irqsave(&pha->hardware_lock, flags);
763         }
764         spin_unlock_irqrestore(&pha->hardware_lock, flags);
765
766         return status;
767 }
768
769 static char *reset_errors[] = {
770         "HBA not online",
771         "HBA not ready",
772         "Task management failed",
773         "Waiting for command completions",
774 };
775
776 static int
777 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
778     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
779 {
780         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
781         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
782         int err;
783
784         qla2x00_block_error_handler(cmd);
785
786         if (!fcport)
787                 return FAILED;
788
789         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
790             ha->host_no, cmd->device->id, cmd->device->lun, name);
791
792         err = 0;
793         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
794                 goto eh_reset_failed;
795         err = 1;
796         if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
797                 goto eh_reset_failed;
798         err = 2;
799         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
800                 goto eh_reset_failed;
801         err = 3;
802         if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
803             cmd->device->lun, type) != QLA_SUCCESS)
804                 goto eh_reset_failed;
805
806         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
807             ha->host_no, cmd->device->id, cmd->device->lun, name);
808
809         return SUCCESS;
810
811  eh_reset_failed:
812         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
813             ha->host_no, cmd->device->id, cmd->device->lun, name,
814             reset_errors[err]);
815         return FAILED;
816 }
817
818 static int
819 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
820 {
821         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
822
823         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
824             ha->isp_ops->lun_reset);
825 }
826
827 static int
828 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
829 {
830         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
831
832         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
833             ha->isp_ops->target_reset);
834 }
835
836 /**************************************************************************
837 * qla2xxx_eh_bus_reset
838 *
839 * Description:
840 *    The bus reset function will reset the bus and abort any executing
841 *    commands.
842 *
843 * Input:
844 *    cmd = Linux SCSI command packet of the command that cause the
845 *          bus reset.
846 *
847 * Returns:
848 *    SUCCESS/FAILURE (defined as macro in scsi.h).
849 *
850 **************************************************************************/
851 static int
852 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
853 {
854         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
855         scsi_qla_host_t *pha = to_qla_parent(ha);
856         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
857         int ret = FAILED;
858         unsigned int id, lun;
859         unsigned long serial;
860
861         qla2x00_block_error_handler(cmd);
862
863         id = cmd->device->id;
864         lun = cmd->device->lun;
865         serial = cmd->serial_number;
866
867         if (!fcport)
868                 return ret;
869
870         qla_printk(KERN_INFO, ha,
871             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
872
873         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
874                 DEBUG2(printk("%s failed:board disabled\n",__func__));
875                 goto eh_bus_reset_done;
876         }
877
878         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
879                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
880                         ret = SUCCESS;
881         }
882         if (ret == FAILED)
883                 goto eh_bus_reset_done;
884
885         /* Flush outstanding commands. */
886         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
887             QLA_SUCCESS)
888                 ret = FAILED;
889
890 eh_bus_reset_done:
891         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
892             (ret == FAILED) ? "failed" : "succeded");
893
894         return ret;
895 }
896
897 /**************************************************************************
898 * qla2xxx_eh_host_reset
899 *
900 * Description:
901 *    The reset function will reset the Adapter.
902 *
903 * Input:
904 *      cmd = Linux SCSI command packet of the command that cause the
905 *            adapter reset.
906 *
907 * Returns:
908 *      Either SUCCESS or FAILED.
909 *
910 * Note:
911 **************************************************************************/
912 static int
913 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
914 {
915         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
916         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
917         int ret = FAILED;
918         unsigned int id, lun;
919         unsigned long serial;
920         scsi_qla_host_t *pha = to_qla_parent(ha);
921
922         qla2x00_block_error_handler(cmd);
923
924         id = cmd->device->id;
925         lun = cmd->device->lun;
926         serial = cmd->serial_number;
927
928         if (!fcport)
929                 return ret;
930
931         qla_printk(KERN_INFO, ha,
932             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
933
934         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
935                 goto eh_host_reset_lock;
936
937         /*
938          * Fixme-may be dpc thread is active and processing
939          * loop_resync,so wait a while for it to
940          * be completed and then issue big hammer.Otherwise
941          * it may cause I/O failure as big hammer marks the
942          * devices as lost kicking of the port_down_timer
943          * while dpc is stuck for the mailbox to complete.
944          */
945         qla2x00_wait_for_loop_ready(ha);
946         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
947         if (qla2x00_abort_isp(pha)) {
948                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
949                 /* failed. schedule dpc to try */
950                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
951
952                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
953                         goto eh_host_reset_lock;
954         }
955         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
956
957         /* Waiting for our command in done_queue to be returned to OS.*/
958         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
959             QLA_SUCCESS)
960                 ret = SUCCESS;
961
962         if (ha->parent)
963                 qla2x00_vp_abort_isp(ha);
964
965 eh_host_reset_lock:
966         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
967             (ret == FAILED) ? "failed" : "succeded");
968
969         return ret;
970 }
971
972 /*
973 * qla2x00_loop_reset
974 *      Issue loop reset.
975 *
976 * Input:
977 *      ha = adapter block pointer.
978 *
979 * Returns:
980 *      0 = success
981 */
982 int
983 qla2x00_loop_reset(scsi_qla_host_t *ha)
984 {
985         int ret;
986         struct fc_port *fcport;
987
988         if (ha->flags.enable_lip_full_login) {
989                 ret = qla2x00_full_login_lip(ha);
990                 if (ret != QLA_SUCCESS) {
991                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
992                             "full_login_lip=%d.\n", __func__, ha->host_no,
993                             ret));
994                 }
995                 atomic_set(&ha->loop_state, LOOP_DOWN);
996                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
997                 qla2x00_mark_all_devices_lost(ha, 0);
998                 qla2x00_wait_for_loop_ready(ha);
999         }
1000
1001         if (ha->flags.enable_lip_reset) {
1002                 ret = qla2x00_lip_reset(ha);
1003                 if (ret != QLA_SUCCESS) {
1004                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1005                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1006                 }
1007                 qla2x00_wait_for_loop_ready(ha);
1008         }
1009
1010         if (ha->flags.enable_target_reset) {
1011                 list_for_each_entry(fcport, &ha->fcports, list) {
1012                         if (fcport->port_type != FCT_TARGET)
1013                                 continue;
1014
1015                         ret = ha->isp_ops->target_reset(fcport, 0);
1016                         if (ret != QLA_SUCCESS) {
1017                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1018                                     "target_reset=%d d_id=%x.\n", __func__,
1019                                     ha->host_no, ret, fcport->d_id.b24));
1020                         }
1021                 }
1022         }
1023
1024         /* Issue marker command only when we are going to start the I/O */
1025         ha->marker_needed = 1;
1026
1027         return QLA_SUCCESS;
1028 }
1029
1030 void
1031 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1032 {
1033         int cnt;
1034         unsigned long flags;
1035         srb_t *sp;
1036
1037         spin_lock_irqsave(&ha->hardware_lock, flags);
1038         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1039                 sp = ha->outstanding_cmds[cnt];
1040                 if (sp) {
1041                         ha->outstanding_cmds[cnt] = NULL;
1042                         sp->flags = 0;
1043                         sp->cmd->result = res;
1044                         sp->cmd->host_scribble = (unsigned char *)NULL;
1045                         qla2x00_sp_compl(ha, sp);
1046                 }
1047         }
1048         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1049 }
1050
1051 static int
1052 qla2xxx_slave_alloc(struct scsi_device *sdev)
1053 {
1054         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1055
1056         if (!rport || fc_remote_port_chkready(rport))
1057                 return -ENXIO;
1058
1059         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1060
1061         return 0;
1062 }
1063
1064 static int
1065 qla2xxx_slave_configure(struct scsi_device *sdev)
1066 {
1067         scsi_qla_host_t *ha = shost_priv(sdev->host);
1068         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1069
1070         if (sdev->tagged_supported)
1071                 scsi_activate_tcq(sdev, ha->max_q_depth);
1072         else
1073                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1074
1075         rport->dev_loss_tmo = ha->port_down_retry_count + 5;
1076
1077         return 0;
1078 }
1079
1080 static void
1081 qla2xxx_slave_destroy(struct scsi_device *sdev)
1082 {
1083         sdev->hostdata = NULL;
1084 }
1085
1086 static int
1087 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1088 {
1089         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1090         return sdev->queue_depth;
1091 }
1092
1093 static int
1094 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1095 {
1096         if (sdev->tagged_supported) {
1097                 scsi_set_tag_type(sdev, tag_type);
1098                 if (tag_type)
1099                         scsi_activate_tcq(sdev, sdev->queue_depth);
1100                 else
1101                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1102         } else
1103                 tag_type = 0;
1104
1105         return tag_type;
1106 }
1107
1108 /**
1109  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1110  * @ha: HA context
1111  *
1112  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1113  * supported addressing method.
1114  */
1115 static void
1116 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1117 {
1118         /* Assume a 32bit DMA mask. */
1119         ha->flags.enable_64bit_addressing = 0;
1120
1121         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1122                 /* Any upper-dword bits set? */
1123                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1124                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1125                         /* Ok, a 64bit DMA mask is applicable. */
1126                         ha->flags.enable_64bit_addressing = 1;
1127                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1128                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1129                         return;
1130                 }
1131         }
1132
1133         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1134         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1135 }
1136
1137 static void
1138 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1139 {
1140         unsigned long flags = 0;
1141         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1142
1143         spin_lock_irqsave(&ha->hardware_lock, flags);
1144         ha->interrupts_on = 1;
1145         /* enable risc and host interrupts */
1146         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1147         RD_REG_WORD(&reg->ictrl);
1148         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1149
1150 }
1151
1152 static void
1153 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1154 {
1155         unsigned long flags = 0;
1156         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1157
1158         spin_lock_irqsave(&ha->hardware_lock, flags);
1159         ha->interrupts_on = 0;
1160         /* disable risc and host interrupts */
1161         WRT_REG_WORD(&reg->ictrl, 0);
1162         RD_REG_WORD(&reg->ictrl);
1163         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1164 }
1165
1166 static void
1167 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1168 {
1169         unsigned long flags = 0;
1170         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1171
1172         spin_lock_irqsave(&ha->hardware_lock, flags);
1173         ha->interrupts_on = 1;
1174         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1175         RD_REG_DWORD(&reg->ictrl);
1176         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1177 }
1178
1179 static void
1180 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1181 {
1182         unsigned long flags = 0;
1183         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1184
1185         spin_lock_irqsave(&ha->hardware_lock, flags);
1186         ha->interrupts_on = 0;
1187         WRT_REG_DWORD(&reg->ictrl, 0);
1188         RD_REG_DWORD(&reg->ictrl);
1189         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1190 }
1191
1192 static struct isp_operations qla2100_isp_ops = {
1193         .pci_config             = qla2100_pci_config,
1194         .reset_chip             = qla2x00_reset_chip,
1195         .chip_diag              = qla2x00_chip_diag,
1196         .config_rings           = qla2x00_config_rings,
1197         .reset_adapter          = qla2x00_reset_adapter,
1198         .nvram_config           = qla2x00_nvram_config,
1199         .update_fw_options      = qla2x00_update_fw_options,
1200         .load_risc              = qla2x00_load_risc,
1201         .pci_info_str           = qla2x00_pci_info_str,
1202         .fw_version_str         = qla2x00_fw_version_str,
1203         .intr_handler           = qla2100_intr_handler,
1204         .enable_intrs           = qla2x00_enable_intrs,
1205         .disable_intrs          = qla2x00_disable_intrs,
1206         .abort_command          = qla2x00_abort_command,
1207         .target_reset           = qla2x00_abort_target,
1208         .lun_reset              = qla2x00_lun_reset,
1209         .fabric_login           = qla2x00_login_fabric,
1210         .fabric_logout          = qla2x00_fabric_logout,
1211         .calc_req_entries       = qla2x00_calc_iocbs_32,
1212         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1213         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1214         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1215         .read_nvram             = qla2x00_read_nvram_data,
1216         .write_nvram            = qla2x00_write_nvram_data,
1217         .fw_dump                = qla2100_fw_dump,
1218         .beacon_on              = NULL,
1219         .beacon_off             = NULL,
1220         .beacon_blink           = NULL,
1221         .read_optrom            = qla2x00_read_optrom_data,
1222         .write_optrom           = qla2x00_write_optrom_data,
1223         .get_flash_version      = qla2x00_get_flash_version,
1224 };
1225
1226 static struct isp_operations qla2300_isp_ops = {
1227         .pci_config             = qla2300_pci_config,
1228         .reset_chip             = qla2x00_reset_chip,
1229         .chip_diag              = qla2x00_chip_diag,
1230         .config_rings           = qla2x00_config_rings,
1231         .reset_adapter          = qla2x00_reset_adapter,
1232         .nvram_config           = qla2x00_nvram_config,
1233         .update_fw_options      = qla2x00_update_fw_options,
1234         .load_risc              = qla2x00_load_risc,
1235         .pci_info_str           = qla2x00_pci_info_str,
1236         .fw_version_str         = qla2x00_fw_version_str,
1237         .intr_handler           = qla2300_intr_handler,
1238         .enable_intrs           = qla2x00_enable_intrs,
1239         .disable_intrs          = qla2x00_disable_intrs,
1240         .abort_command          = qla2x00_abort_command,
1241         .target_reset           = qla2x00_abort_target,
1242         .lun_reset              = qla2x00_lun_reset,
1243         .fabric_login           = qla2x00_login_fabric,
1244         .fabric_logout          = qla2x00_fabric_logout,
1245         .calc_req_entries       = qla2x00_calc_iocbs_32,
1246         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1247         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1248         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1249         .read_nvram             = qla2x00_read_nvram_data,
1250         .write_nvram            = qla2x00_write_nvram_data,
1251         .fw_dump                = qla2300_fw_dump,
1252         .beacon_on              = qla2x00_beacon_on,
1253         .beacon_off             = qla2x00_beacon_off,
1254         .beacon_blink           = qla2x00_beacon_blink,
1255         .read_optrom            = qla2x00_read_optrom_data,
1256         .write_optrom           = qla2x00_write_optrom_data,
1257         .get_flash_version      = qla2x00_get_flash_version,
1258 };
1259
1260 static struct isp_operations qla24xx_isp_ops = {
1261         .pci_config             = qla24xx_pci_config,
1262         .reset_chip             = qla24xx_reset_chip,
1263         .chip_diag              = qla24xx_chip_diag,
1264         .config_rings           = qla24xx_config_rings,
1265         .reset_adapter          = qla24xx_reset_adapter,
1266         .nvram_config           = qla24xx_nvram_config,
1267         .update_fw_options      = qla24xx_update_fw_options,
1268         .load_risc              = qla24xx_load_risc,
1269         .pci_info_str           = qla24xx_pci_info_str,
1270         .fw_version_str         = qla24xx_fw_version_str,
1271         .intr_handler           = qla24xx_intr_handler,
1272         .enable_intrs           = qla24xx_enable_intrs,
1273         .disable_intrs          = qla24xx_disable_intrs,
1274         .abort_command          = qla24xx_abort_command,
1275         .target_reset           = qla24xx_abort_target,
1276         .lun_reset              = qla24xx_lun_reset,
1277         .fabric_login           = qla24xx_login_fabric,
1278         .fabric_logout          = qla24xx_fabric_logout,
1279         .calc_req_entries       = NULL,
1280         .build_iocbs            = NULL,
1281         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1282         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1283         .read_nvram             = qla24xx_read_nvram_data,
1284         .write_nvram            = qla24xx_write_nvram_data,
1285         .fw_dump                = qla24xx_fw_dump,
1286         .beacon_on              = qla24xx_beacon_on,
1287         .beacon_off             = qla24xx_beacon_off,
1288         .beacon_blink           = qla24xx_beacon_blink,
1289         .read_optrom            = qla24xx_read_optrom_data,
1290         .write_optrom           = qla24xx_write_optrom_data,
1291         .get_flash_version      = qla24xx_get_flash_version,
1292 };
1293
1294 static struct isp_operations qla25xx_isp_ops = {
1295         .pci_config             = qla25xx_pci_config,
1296         .reset_chip             = qla24xx_reset_chip,
1297         .chip_diag              = qla24xx_chip_diag,
1298         .config_rings           = qla24xx_config_rings,
1299         .reset_adapter          = qla24xx_reset_adapter,
1300         .nvram_config           = qla24xx_nvram_config,
1301         .update_fw_options      = qla24xx_update_fw_options,
1302         .load_risc              = qla24xx_load_risc,
1303         .pci_info_str           = qla24xx_pci_info_str,
1304         .fw_version_str         = qla24xx_fw_version_str,
1305         .intr_handler           = qla24xx_intr_handler,
1306         .enable_intrs           = qla24xx_enable_intrs,
1307         .disable_intrs          = qla24xx_disable_intrs,
1308         .abort_command          = qla24xx_abort_command,
1309         .target_reset           = qla24xx_abort_target,
1310         .lun_reset              = qla24xx_lun_reset,
1311         .fabric_login           = qla24xx_login_fabric,
1312         .fabric_logout          = qla24xx_fabric_logout,
1313         .calc_req_entries       = NULL,
1314         .build_iocbs            = NULL,
1315         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1316         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1317         .read_nvram             = qla25xx_read_nvram_data,
1318         .write_nvram            = qla25xx_write_nvram_data,
1319         .fw_dump                = qla25xx_fw_dump,
1320         .beacon_on              = qla24xx_beacon_on,
1321         .beacon_off             = qla24xx_beacon_off,
1322         .beacon_blink           = qla24xx_beacon_blink,
1323         .read_optrom            = qla25xx_read_optrom_data,
1324         .write_optrom           = qla24xx_write_optrom_data,
1325         .get_flash_version      = qla24xx_get_flash_version,
1326 };
1327
1328 static inline void
1329 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1330 {
1331         ha->device_type = DT_EXTENDED_IDS;
1332         switch (ha->pdev->device) {
1333         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1334                 ha->device_type |= DT_ISP2100;
1335                 ha->device_type &= ~DT_EXTENDED_IDS;
1336                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1337                 break;
1338         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1339                 ha->device_type |= DT_ISP2200;
1340                 ha->device_type &= ~DT_EXTENDED_IDS;
1341                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1342                 break;
1343         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1344                 ha->device_type |= DT_ISP2300;
1345                 ha->device_type |= DT_ZIO_SUPPORTED;
1346                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1347                 break;
1348         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1349                 ha->device_type |= DT_ISP2312;
1350                 ha->device_type |= DT_ZIO_SUPPORTED;
1351                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1352                 break;
1353         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1354                 ha->device_type |= DT_ISP2322;
1355                 ha->device_type |= DT_ZIO_SUPPORTED;
1356                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1357                     ha->pdev->subsystem_device == 0x0170)
1358                         ha->device_type |= DT_OEM_001;
1359                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1360                 break;
1361         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1362                 ha->device_type |= DT_ISP6312;
1363                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1364                 break;
1365         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1366                 ha->device_type |= DT_ISP6322;
1367                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1368                 break;
1369         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1370                 ha->device_type |= DT_ISP2422;
1371                 ha->device_type |= DT_ZIO_SUPPORTED;
1372                 ha->device_type |= DT_FWI2;
1373                 ha->device_type |= DT_IIDMA;
1374                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1375                 break;
1376         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1377                 ha->device_type |= DT_ISP2432;
1378                 ha->device_type |= DT_ZIO_SUPPORTED;
1379                 ha->device_type |= DT_FWI2;
1380                 ha->device_type |= DT_IIDMA;
1381                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1382                 break;
1383         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1384                 ha->device_type |= DT_ISP8432;
1385                 ha->device_type |= DT_ZIO_SUPPORTED;
1386                 ha->device_type |= DT_FWI2;
1387                 ha->device_type |= DT_IIDMA;
1388                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1389                 break;
1390         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1391                 ha->device_type |= DT_ISP5422;
1392                 ha->device_type |= DT_FWI2;
1393                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1394                 break;
1395         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1396                 ha->device_type |= DT_ISP5432;
1397                 ha->device_type |= DT_FWI2;
1398                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1399                 break;
1400         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1401                 ha->device_type |= DT_ISP2532;
1402                 ha->device_type |= DT_ZIO_SUPPORTED;
1403                 ha->device_type |= DT_FWI2;
1404                 ha->device_type |= DT_IIDMA;
1405                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1406                 break;
1407         }
1408 }
1409
1410 static int
1411 qla2x00_iospace_config(scsi_qla_host_t *ha)
1412 {
1413         resource_size_t pio;
1414
1415         if (pci_request_selected_regions(ha->pdev, ha->bars,
1416             QLA2XXX_DRIVER_NAME)) {
1417                 qla_printk(KERN_WARNING, ha,
1418                     "Failed to reserve PIO/MMIO regions (%s)\n",
1419                     pci_name(ha->pdev));
1420
1421                 goto iospace_error_exit;
1422         }
1423         if (!(ha->bars & 1))
1424                 goto skip_pio;
1425
1426         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1427         pio = pci_resource_start(ha->pdev, 0);
1428         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1429                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1430                         qla_printk(KERN_WARNING, ha,
1431                             "Invalid PCI I/O region size (%s)...\n",
1432                                 pci_name(ha->pdev));
1433                         pio = 0;
1434                 }
1435         } else {
1436                 qla_printk(KERN_WARNING, ha,
1437                     "region #0 not a PIO resource (%s)...\n",
1438                     pci_name(ha->pdev));
1439                 pio = 0;
1440         }
1441         ha->pio_address = pio;
1442
1443 skip_pio:
1444         /* Use MMIO operations for all accesses. */
1445         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1446                 qla_printk(KERN_ERR, ha,
1447                     "region #1 not an MMIO resource (%s), aborting\n",
1448                     pci_name(ha->pdev));
1449                 goto iospace_error_exit;
1450         }
1451         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1452                 qla_printk(KERN_ERR, ha,
1453                     "Invalid PCI mem region size (%s), aborting\n",
1454                         pci_name(ha->pdev));
1455                 goto iospace_error_exit;
1456         }
1457
1458         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1459         if (!ha->iobase) {
1460                 qla_printk(KERN_ERR, ha,
1461                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1462
1463                 goto iospace_error_exit;
1464         }
1465
1466         return (0);
1467
1468 iospace_error_exit:
1469         return (-ENOMEM);
1470 }
1471
1472 static void
1473 qla2xxx_scan_start(struct Scsi_Host *shost)
1474 {
1475         scsi_qla_host_t *ha = shost_priv(shost);
1476
1477         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1478         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1479         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1480 }
1481
1482 static int
1483 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1484 {
1485         scsi_qla_host_t *ha = shost_priv(shost);
1486
1487         if (!ha->host)
1488                 return 1;
1489         if (time > ha->loop_reset_delay * HZ)
1490                 return 1;
1491
1492         return atomic_read(&ha->loop_state) == LOOP_READY;
1493 }
1494
1495 /*
1496  * PCI driver interface
1497  */
1498 static int __devinit
1499 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1500 {
1501         int     ret = -ENODEV;
1502         struct Scsi_Host *host;
1503         scsi_qla_host_t *ha;
1504         char pci_info[30];
1505         char fw_str[30];
1506         struct scsi_host_template *sht;
1507         int bars, mem_only = 0;
1508
1509         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1510         sht = &qla2x00_driver_template;
1511         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1512             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1513             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1514             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1515             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1516             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1517                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1518                 sht = &qla24xx_driver_template;
1519                 mem_only = 1;
1520         }
1521
1522         if (mem_only) {
1523                 if (pci_enable_device_mem(pdev))
1524                         goto probe_out;
1525         } else {
1526                 if (pci_enable_device(pdev))
1527                         goto probe_out;
1528         }
1529
1530         if (pci_find_aer_capability(pdev))
1531                 if (pci_enable_pcie_error_reporting(pdev))
1532                         goto probe_out;
1533
1534         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1535         if (host == NULL) {
1536                 printk(KERN_WARNING
1537                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1538                 goto probe_disable_device;
1539         }
1540
1541         /* Clear our data area */
1542         ha = shost_priv(host);
1543         memset(ha, 0, sizeof(scsi_qla_host_t));
1544
1545         ha->pdev = pdev;
1546         ha->host = host;
1547         ha->host_no = host->host_no;
1548         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1549         ha->parent = NULL;
1550         ha->bars = bars;
1551         ha->mem_only = mem_only;
1552         spin_lock_init(&ha->hardware_lock);
1553
1554         /* Set ISP-type information. */
1555         qla2x00_set_isp_flags(ha);
1556
1557         /* Configure PCI I/O space */
1558         ret = qla2x00_iospace_config(ha);
1559         if (ret)
1560                 goto probe_failed;
1561
1562         qla_printk(KERN_INFO, ha,
1563             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1564             ha->iobase);
1565
1566         ha->prev_topology = 0;
1567         ha->init_cb_size = sizeof(init_cb_t);
1568         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1569         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1570         ha->optrom_size = OPTROM_SIZE_2300;
1571
1572         ha->max_q_depth = MAX_Q_DEPTH;
1573         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1574                 ha->max_q_depth = ql2xmaxqdepth;
1575
1576         /* Assign ISP specific operations. */
1577         if (IS_QLA2100(ha)) {
1578                 host->max_id = MAX_TARGETS_2100;
1579                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1580                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1581                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1582                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1583                 host->sg_tablesize = 32;
1584                 ha->gid_list_info_size = 4;
1585                 ha->isp_ops = &qla2100_isp_ops;
1586         } else if (IS_QLA2200(ha)) {
1587                 host->max_id = MAX_TARGETS_2200;
1588                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1589                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1590                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1591                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1592                 ha->gid_list_info_size = 4;
1593                 ha->isp_ops = &qla2100_isp_ops;
1594         } else if (IS_QLA23XX(ha)) {
1595                 host->max_id = MAX_TARGETS_2200;
1596                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1597                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1598                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1599                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1600                 ha->gid_list_info_size = 6;
1601                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1602                         ha->optrom_size = OPTROM_SIZE_2322;
1603                 ha->isp_ops = &qla2300_isp_ops;
1604         } else if (IS_QLA24XX_TYPE(ha)) {
1605                 host->max_id = MAX_TARGETS_2200;
1606                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1607                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1608                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1609                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1610                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1611                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1612                 ha->gid_list_info_size = 8;
1613                 ha->optrom_size = OPTROM_SIZE_24XX;
1614                 ha->isp_ops = &qla24xx_isp_ops;
1615         } else if (IS_QLA25XX(ha)) {
1616                 host->max_id = MAX_TARGETS_2200;
1617                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1618                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1619                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1620                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1621                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1622                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1623                 ha->gid_list_info_size = 8;
1624                 ha->optrom_size = OPTROM_SIZE_25XX;
1625                 ha->isp_ops = &qla25xx_isp_ops;
1626                 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1627                     FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1628         }
1629         host->can_queue = ha->request_q_length + 128;
1630
1631         /* load the F/W, read paramaters, and init the H/W */
1632         ha->instance = num_hosts;
1633
1634         init_MUTEX(&ha->vport_sem);
1635         init_completion(&ha->mbx_cmd_comp);
1636         complete(&ha->mbx_cmd_comp);
1637         init_completion(&ha->mbx_intr_comp);
1638
1639         INIT_LIST_HEAD(&ha->list);
1640         INIT_LIST_HEAD(&ha->fcports);
1641         INIT_LIST_HEAD(&ha->vp_list);
1642         INIT_LIST_HEAD(&ha->work_list);
1643
1644         set_bit(0, (unsigned long *) ha->vp_idx_map);
1645
1646         qla2x00_config_dma_addressing(ha);
1647         if (qla2x00_mem_alloc(ha)) {
1648                 qla_printk(KERN_WARNING, ha,
1649                     "[ERROR] Failed to allocate memory for adapter\n");
1650
1651                 ret = -ENOMEM;
1652                 goto probe_failed;
1653         }
1654
1655         if (qla2x00_initialize_adapter(ha)) {
1656                 qla_printk(KERN_WARNING, ha,
1657                     "Failed to initialize adapter\n");
1658
1659                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1660                     "Adapter flags %x.\n",
1661                     ha->host_no, ha->device_flags));
1662
1663                 ret = -ENODEV;
1664                 goto probe_failed;
1665         }
1666
1667         /*
1668          * Startup the kernel thread for this host adapter
1669          */
1670         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1671                         "%s_dpc", ha->host_str);
1672         if (IS_ERR(ha->dpc_thread)) {
1673                 qla_printk(KERN_WARNING, ha,
1674                     "Unable to start DPC thread!\n");
1675                 ret = PTR_ERR(ha->dpc_thread);
1676                 goto probe_failed;
1677         }
1678
1679         host->this_id = 255;
1680         host->cmd_per_lun = 3;
1681         host->unique_id = ha->instance;
1682         host->max_cmd_len = MAX_CMDSZ;
1683         host->max_channel = MAX_BUSES - 1;
1684         host->max_lun = MAX_LUNS;
1685         host->transportt = qla2xxx_transport_template;
1686
1687         ret = qla2x00_request_irqs(ha);
1688         if (ret)
1689                 goto probe_failed;
1690
1691         /* Initialized the timer */
1692         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1693
1694         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1695             ha->host_no, ha));
1696
1697         pci_set_drvdata(pdev, ha);
1698
1699         ha->flags.init_done = 1;
1700         ha->flags.online = 1;
1701
1702         num_hosts++;
1703
1704         ret = scsi_add_host(host, &pdev->dev);
1705         if (ret)
1706                 goto probe_failed;
1707
1708         scsi_scan_host(host);
1709
1710         qla2x00_alloc_sysfs_attr(ha);
1711
1712         qla2x00_init_host_attr(ha);
1713
1714         qla2x00_dfs_setup(ha);
1715
1716         qla_printk(KERN_INFO, ha, "\n"
1717             " QLogic Fibre Channel HBA Driver: %s\n"
1718             "  QLogic %s - %s\n"
1719             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1720             qla2x00_version_str, ha->model_number,
1721             ha->model_desc ? ha->model_desc: "", pdev->device,
1722             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1723             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1724             ha->isp_ops->fw_version_str(ha, fw_str));
1725
1726         return 0;
1727
1728 probe_failed:
1729         qla2x00_free_device(ha);
1730
1731         scsi_host_put(host);
1732
1733 probe_disable_device:
1734         pci_disable_device(pdev);
1735
1736 probe_out:
1737         return ret;
1738 }
1739
1740 static void
1741 qla2x00_remove_one(struct pci_dev *pdev)
1742 {
1743         scsi_qla_host_t *ha;
1744
1745         ha = pci_get_drvdata(pdev);
1746
1747         qla2x00_dfs_remove(ha);
1748
1749         qla84xx_put_chip(ha);
1750
1751         qla2x00_free_sysfs_attr(ha);
1752
1753         fc_remove_host(ha->host);
1754
1755         scsi_remove_host(ha->host);
1756
1757         qla2x00_free_device(ha);
1758
1759         scsi_host_put(ha->host);
1760
1761         pci_disable_device(pdev);
1762         pci_set_drvdata(pdev, NULL);
1763 }
1764
1765 static void
1766 qla2x00_free_device(scsi_qla_host_t *ha)
1767 {
1768         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1769
1770         /* Disable timer */
1771         if (ha->timer_active)
1772                 qla2x00_stop_timer(ha);
1773
1774         ha->flags.online = 0;
1775
1776         /* Kill the kernel thread for this host */
1777         if (ha->dpc_thread) {
1778                 struct task_struct *t = ha->dpc_thread;
1779
1780                 /*
1781                  * qla2xxx_wake_dpc checks for ->dpc_thread
1782                  * so we need to zero it out.
1783                  */
1784                 ha->dpc_thread = NULL;
1785                 kthread_stop(t);
1786         }
1787
1788         if (ha->flags.fce_enabled)
1789                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1790
1791         if (ha->eft)
1792                 qla2x00_disable_eft_trace(ha);
1793
1794         /* Stop currently executing firmware. */
1795         qla2x00_try_to_stop_firmware(ha);
1796
1797         /* turn-off interrupts on the card */
1798         if (ha->interrupts_on)
1799                 ha->isp_ops->disable_intrs(ha);
1800
1801         qla2x00_mem_free(ha);
1802
1803         qla2x00_free_irqs(ha);
1804
1805         /* release io space registers  */
1806         if (ha->iobase)
1807                 iounmap(ha->iobase);
1808         pci_release_selected_regions(ha->pdev, ha->bars);
1809 }
1810
1811 static inline void
1812 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1813     int defer)
1814 {
1815         unsigned long flags;
1816         struct fc_rport *rport;
1817
1818         if (!fcport->rport)
1819                 return;
1820
1821         rport = fcport->rport;
1822         if (defer) {
1823                 spin_lock_irqsave(&fcport->rport_lock, flags);
1824                 fcport->drport = rport;
1825                 fcport->rport = NULL;
1826                 *(fc_port_t **)rport->dd_data = NULL;
1827                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1828                 set_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
1829         } else {
1830                 spin_lock_irqsave(&fcport->rport_lock, flags);
1831                 fcport->rport = NULL;
1832                 *(fc_port_t **)rport->dd_data = NULL;
1833                 spin_unlock_irqrestore(&fcport->rport_lock, flags);
1834                 fc_remote_port_delete(rport);
1835         }
1836 }
1837
1838 /*
1839  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1840  *
1841  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1842  *
1843  * Return: None.
1844  *
1845  * Context:
1846  */
1847 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1848     int do_login, int defer)
1849 {
1850         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1851             ha->vp_idx == fcport->vp_idx)
1852                 qla2x00_schedule_rport_del(ha, fcport, defer);
1853
1854         /*
1855          * We may need to retry the login, so don't change the state of the
1856          * port but do the retries.
1857          */
1858         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1859                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1860
1861         if (!do_login)
1862                 return;
1863
1864         if (fcport->login_retry == 0) {
1865                 fcport->login_retry = ha->login_retry_count;
1866                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1867
1868                 DEBUG(printk("scsi(%ld): Port login retry: "
1869                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1870                     "id = 0x%04x retry cnt=%d\n",
1871                     ha->host_no,
1872                     fcport->port_name[0],
1873                     fcport->port_name[1],
1874                     fcport->port_name[2],
1875                     fcport->port_name[3],
1876                     fcport->port_name[4],
1877                     fcport->port_name[5],
1878                     fcport->port_name[6],
1879                     fcport->port_name[7],
1880                     fcport->loop_id,
1881                     fcport->login_retry));
1882         }
1883 }
1884
1885 /*
1886  * qla2x00_mark_all_devices_lost
1887  *      Updates fcport state when device goes offline.
1888  *
1889  * Input:
1890  *      ha = adapter block pointer.
1891  *      fcport = port structure pointer.
1892  *
1893  * Return:
1894  *      None.
1895  *
1896  * Context:
1897  */
1898 void
1899 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1900 {
1901         fc_port_t *fcport;
1902         scsi_qla_host_t *pha = to_qla_parent(ha);
1903
1904         list_for_each_entry(fcport, &pha->fcports, list) {
1905                 if (ha->vp_idx != 0 && ha->vp_idx != fcport->vp_idx)
1906                         continue;
1907                 /*
1908                  * No point in marking the device as lost, if the device is
1909                  * already DEAD.
1910                  */
1911                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1912                         continue;
1913                 if (atomic_read(&fcport->state) == FCS_ONLINE) {
1914                         if (defer)
1915                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1916                         else if (ha->vp_idx == fcport->vp_idx)
1917                                 qla2x00_schedule_rport_del(ha, fcport, defer);
1918                 }
1919                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1920         }
1921
1922         if (defer)
1923                 qla2xxx_wake_dpc(ha);
1924 }
1925
1926 /*
1927 * qla2x00_mem_alloc
1928 *      Allocates adapter memory.
1929 *
1930 * Returns:
1931 *      0  = success.
1932 *      !0  = failure.
1933 */
1934 static int
1935 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1936 {
1937         char    name[16];
1938
1939         ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1940             (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1941             GFP_KERNEL);
1942         if (!ha->request_ring)
1943                 goto fail;
1944
1945         ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1946             (ha->response_q_length + 1) * sizeof(response_t),
1947             &ha->response_dma, GFP_KERNEL);
1948         if (!ha->response_ring)
1949                 goto fail_free_request_ring;
1950
1951         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1952             &ha->gid_list_dma, GFP_KERNEL);
1953         if (!ha->gid_list)
1954                 goto fail_free_response_ring;
1955
1956         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1957             &ha->init_cb_dma, GFP_KERNEL);
1958         if (!ha->init_cb)
1959                 goto fail_free_gid_list;
1960
1961         snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1962             ha->host_no);
1963         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1964             DMA_POOL_SIZE, 8, 0);
1965         if (!ha->s_dma_pool)
1966                 goto fail_free_init_cb;
1967
1968         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1969         if (!ha->srb_mempool)
1970                 goto fail_free_s_dma_pool;
1971
1972         /* Get memory for cached NVRAM */
1973         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1974         if (!ha->nvram)
1975                 goto fail_free_srb_mempool;
1976
1977         /* Allocate memory for SNS commands */
1978         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
1979                 /* Get consistent memory allocated for SNS commands */
1980                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
1981                     sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
1982                 if (!ha->sns_cmd)
1983                         goto fail_free_nvram;
1984         } else {
1985                 /* Get consistent memory allocated for MS IOCB */
1986                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
1987                     &ha->ms_iocb_dma);
1988                 if (!ha->ms_iocb)
1989                         goto fail_free_nvram;
1990
1991                 /* Get consistent memory allocated for CT SNS commands */
1992                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
1993                     sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
1994                 if (!ha->ct_sns)
1995                         goto fail_free_ms_iocb;
1996         }
1997
1998         return 0;
1999
2000 fail_free_ms_iocb:
2001         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2002         ha->ms_iocb = NULL;
2003         ha->ms_iocb_dma = 0;
2004 fail_free_nvram:
2005         kfree(ha->nvram);
2006         ha->nvram = NULL;
2007 fail_free_srb_mempool:
2008         mempool_destroy(ha->srb_mempool);
2009         ha->srb_mempool = NULL;
2010 fail_free_s_dma_pool:
2011         dma_pool_destroy(ha->s_dma_pool);
2012         ha->s_dma_pool = NULL;
2013 fail_free_init_cb:
2014         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2015             ha->init_cb_dma);
2016         ha->init_cb = NULL;
2017         ha->init_cb_dma = 0;
2018 fail_free_gid_list:
2019         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2020             ha->gid_list_dma);
2021         ha->gid_list = NULL;
2022         ha->gid_list_dma = 0;
2023 fail_free_response_ring:
2024         dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2025             sizeof(response_t), ha->response_ring, ha->response_dma);
2026         ha->response_ring = NULL;
2027         ha->response_dma = 0;
2028 fail_free_request_ring:
2029         dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2030             sizeof(request_t), ha->request_ring, ha->request_dma);
2031         ha->request_ring = NULL;
2032         ha->request_dma = 0;
2033 fail:
2034         return -ENOMEM;
2035 }
2036
2037 /*
2038 * qla2x00_mem_free
2039 *      Frees all adapter allocated memory.
2040 *
2041 * Input:
2042 *      ha = adapter block pointer.
2043 */
2044 static void
2045 qla2x00_mem_free(scsi_qla_host_t *ha)
2046 {
2047         struct list_head        *fcpl, *fcptemp;
2048         fc_port_t       *fcport;
2049
2050         if (ha->srb_mempool)
2051                 mempool_destroy(ha->srb_mempool);
2052
2053         if (ha->fce)
2054                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2055                     ha->fce_dma);
2056
2057         if (ha->fw_dump) {
2058                 if (ha->eft)
2059                         dma_free_coherent(&ha->pdev->dev,
2060                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2061                 vfree(ha->fw_dump);
2062         }
2063
2064         if (ha->sns_cmd)
2065                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2066                     ha->sns_cmd, ha->sns_cmd_dma);
2067
2068         if (ha->ct_sns)
2069                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2070                     ha->ct_sns, ha->ct_sns_dma);
2071
2072         if (ha->sfp_data)
2073                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2074
2075         if (ha->ms_iocb)
2076                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2077
2078         if (ha->s_dma_pool)
2079                 dma_pool_destroy(ha->s_dma_pool);
2080
2081         if (ha->init_cb)
2082                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2083                     ha->init_cb, ha->init_cb_dma);
2084
2085         if (ha->gid_list)
2086                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2087                     ha->gid_list_dma);
2088
2089         if (ha->response_ring)
2090                 dma_free_coherent(&ha->pdev->dev,
2091                     (ha->response_q_length + 1) * sizeof(response_t),
2092                     ha->response_ring, ha->response_dma);
2093
2094         if (ha->request_ring)
2095                 dma_free_coherent(&ha->pdev->dev,
2096                     (ha->request_q_length + 1) * sizeof(request_t),
2097                     ha->request_ring, ha->request_dma);
2098
2099         ha->srb_mempool = NULL;
2100         ha->eft = NULL;
2101         ha->eft_dma = 0;
2102         ha->sns_cmd = NULL;
2103         ha->sns_cmd_dma = 0;
2104         ha->ct_sns = NULL;
2105         ha->ct_sns_dma = 0;
2106         ha->ms_iocb = NULL;
2107         ha->ms_iocb_dma = 0;
2108         ha->init_cb = NULL;
2109         ha->init_cb_dma = 0;
2110
2111         ha->s_dma_pool = NULL;
2112
2113         ha->gid_list = NULL;
2114         ha->gid_list_dma = 0;
2115
2116         ha->response_ring = NULL;
2117         ha->response_dma = 0;
2118         ha->request_ring = NULL;
2119         ha->request_dma = 0;
2120
2121         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2122                 fcport = list_entry(fcpl, fc_port_t, list);
2123
2124                 /* fc ports */
2125                 list_del_init(&fcport->list);
2126                 kfree(fcport);
2127         }
2128         INIT_LIST_HEAD(&ha->fcports);
2129
2130         ha->fw_dump = NULL;
2131         ha->fw_dumped = 0;
2132         ha->fw_dump_reading = 0;
2133
2134         vfree(ha->optrom_buffer);
2135         kfree(ha->nvram);
2136 }
2137
2138 static struct qla_work_evt *
2139 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2140     int locked)
2141 {
2142         struct qla_work_evt *e;
2143
2144         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2145             GFP_KERNEL);
2146         if (!e)
2147                 return NULL;
2148
2149         INIT_LIST_HEAD(&e->list);
2150         e->type = type;
2151         e->flags = QLA_EVT_FLAG_FREE;
2152         return e;
2153 }
2154
2155 static int
2156 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2157 {
2158         unsigned long flags;
2159
2160         if (!locked)
2161                 spin_lock_irqsave(&ha->hardware_lock, flags);
2162         list_add_tail(&e->list, &ha->work_list);
2163         qla2xxx_wake_dpc(ha);
2164         if (!locked)
2165                 spin_unlock_irqrestore(&ha->hardware_lock, flags);
2166         return QLA_SUCCESS;
2167 }
2168
2169 int
2170 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2171     u32 data)
2172 {
2173         struct qla_work_evt *e;
2174
2175         e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2176         if (!e)
2177                 return QLA_FUNCTION_FAILED;
2178
2179         e->u.aen.code = code;
2180         e->u.aen.data = data;
2181         return qla2x00_post_work(ha, e, 1);
2182 }
2183
2184 int
2185 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2186     uint16_t d2, uint16_t d3)
2187 {
2188         struct qla_work_evt *e;
2189
2190         e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2191         if (!e)
2192                 return QLA_FUNCTION_FAILED;
2193
2194         e->u.hwe.code = code;
2195         e->u.hwe.d1 = d1;
2196         e->u.hwe.d2 = d2;
2197         e->u.hwe.d3 = d3;
2198         return qla2x00_post_work(ha, e, 1);
2199 }
2200
2201 static void
2202 qla2x00_do_work(struct scsi_qla_host *ha)
2203 {
2204         struct qla_work_evt *e;
2205
2206         spin_lock_irq(&ha->hardware_lock);
2207         while (!list_empty(&ha->work_list)) {
2208                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2209                 list_del_init(&e->list);
2210                 spin_unlock_irq(&ha->hardware_lock);
2211
2212                 switch (e->type) {
2213                 case QLA_EVT_AEN:
2214                         fc_host_post_event(ha->host, fc_get_event_number(),
2215                             e->u.aen.code, e->u.aen.data);
2216                         break;
2217                 case QLA_EVT_HWE_LOG:
2218                         qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2219                             e->u.hwe.d2, e->u.hwe.d3);
2220                         break;
2221                 }
2222                 if (e->flags & QLA_EVT_FLAG_FREE)
2223                         kfree(e);
2224                 spin_lock_irq(&ha->hardware_lock);
2225         }
2226         spin_unlock_irq(&ha->hardware_lock);
2227 }
2228
2229 /**************************************************************************
2230 * qla2x00_do_dpc
2231 *   This kernel thread is a task that is schedule by the interrupt handler
2232 *   to perform the background processing for interrupts.
2233 *
2234 * Notes:
2235 * This task always run in the context of a kernel thread.  It
2236 * is kick-off by the driver's detect code and starts up
2237 * up one per adapter. It immediately goes to sleep and waits for
2238 * some fibre event.  When either the interrupt handler or
2239 * the timer routine detects a event it will one of the task
2240 * bits then wake us up.
2241 **************************************************************************/
2242 static int
2243 qla2x00_do_dpc(void *data)
2244 {
2245         int             rval;
2246         scsi_qla_host_t *ha;
2247         fc_port_t       *fcport;
2248         uint8_t         status;
2249         uint16_t        next_loopid;
2250         struct scsi_qla_host *vha;
2251         int             i;
2252
2253
2254         ha = (scsi_qla_host_t *)data;
2255
2256         set_user_nice(current, -20);
2257
2258         while (!kthread_should_stop()) {
2259                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2260
2261                 set_current_state(TASK_INTERRUPTIBLE);
2262                 schedule();
2263                 __set_current_state(TASK_RUNNING);
2264
2265                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2266
2267                 /* Initialization not yet finished. Don't do anything yet. */
2268                 if (!ha->flags.init_done)
2269                         continue;
2270
2271                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2272
2273                 ha->dpc_active = 1;
2274
2275                 if (ha->flags.mbox_busy) {
2276                         ha->dpc_active = 0;
2277                         continue;
2278                 }
2279
2280                 qla2x00_do_work(ha);
2281
2282                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2283
2284                         DEBUG(printk("scsi(%ld): dpc: sched "
2285                             "qla2x00_abort_isp ha = %p\n",
2286                             ha->host_no, ha));
2287                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2288                             &ha->dpc_flags))) {
2289
2290                                 if (qla2x00_abort_isp(ha)) {
2291                                         /* failed. retry later */
2292                                         set_bit(ISP_ABORT_NEEDED,
2293                                             &ha->dpc_flags);
2294                                 }
2295                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2296                         }
2297
2298                         for_each_mapped_vp_idx(ha, i) {
2299                                 list_for_each_entry(vha, &ha->vp_list,
2300                                     vp_list) {
2301                                         if (i == vha->vp_idx) {
2302                                                 set_bit(ISP_ABORT_NEEDED,
2303                                                     &vha->dpc_flags);
2304                                                 break;
2305                                         }
2306                                 }
2307                         }
2308
2309                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2310                             ha->host_no));
2311                 }
2312
2313                 if (test_and_clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags))
2314                         qla2x00_update_fcports(ha);
2315
2316                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2317                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2318
2319                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2320                             ha->host_no));
2321
2322                         qla2x00_rst_aen(ha);
2323                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2324                 }
2325
2326                 /* Retry each device up to login retry count */
2327                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2328                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2329                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2330
2331                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2332                             ha->host_no));
2333
2334                         next_loopid = 0;
2335                         list_for_each_entry(fcport, &ha->fcports, list) {
2336                                 /*
2337                                  * If the port is not ONLINE then try to login
2338                                  * to it if we haven't run out of retries.
2339                                  */
2340                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2341                                     fcport->login_retry) {
2342
2343                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2344                                                 if (fcport->flags &
2345                                                     FCF_TAPE_PRESENT)
2346                                                         ha->isp_ops->fabric_logout(
2347                                                             ha, fcport->loop_id,
2348                                                             fcport->d_id.b.domain,
2349                                                             fcport->d_id.b.area,
2350                                                             fcport->d_id.b.al_pa);
2351                                                 status = qla2x00_fabric_login(
2352                                                     ha, fcport, &next_loopid);
2353                                         } else
2354                                                 status =
2355                                                     qla2x00_local_device_login(
2356                                                         ha, fcport);
2357
2358                                         fcport->login_retry--;
2359                                         if (status == QLA_SUCCESS) {
2360                                                 fcport->old_loop_id = fcport->loop_id;
2361
2362                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2363                                                     ha->host_no, fcport->loop_id));
2364
2365                                                 qla2x00_update_fcport(ha,
2366                                                     fcport);
2367                                         } else if (status == 1) {
2368                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2369                                                 /* retry the login again */
2370                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2371                                                     ha->host_no,
2372                                                     fcport->login_retry, fcport->loop_id));
2373                                         } else {
2374                                                 fcport->login_retry = 0;
2375                                         }
2376                                         if (fcport->login_retry == 0)
2377                                                 fcport->loop_id = FC_NO_LOOP_ID;
2378                                 }
2379                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2380                                         break;
2381                         }
2382                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2383                             ha->host_no));
2384                 }
2385
2386                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2387
2388                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2389                             ha->host_no));
2390
2391                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2392                             &ha->dpc_flags))) {
2393
2394                                 rval = qla2x00_loop_resync(ha);
2395
2396                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2397                         }
2398
2399                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2400                             ha->host_no));
2401                 }
2402
2403                 if (!ha->interrupts_on)
2404                         ha->isp_ops->enable_intrs(ha);
2405
2406                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2407                         ha->isp_ops->beacon_blink(ha);
2408
2409                 qla2x00_do_dpc_all_vps(ha);
2410
2411                 ha->dpc_active = 0;
2412         } /* End of while(1) */
2413
2414         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2415
2416         /*
2417          * Make sure that nobody tries to wake us up again.
2418          */
2419         ha->dpc_active = 0;
2420
2421         return 0;
2422 }
2423
2424 void
2425 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2426 {
2427         if (ha->dpc_thread)
2428                 wake_up_process(ha->dpc_thread);
2429 }
2430
2431 /*
2432 *  qla2x00_rst_aen
2433 *      Processes asynchronous reset.
2434 *
2435 * Input:
2436 *      ha  = adapter block pointer.
2437 */
2438 static void
2439 qla2x00_rst_aen(scsi_qla_host_t *ha)
2440 {
2441         if (ha->flags.online && !ha->flags.reset_active &&
2442             !atomic_read(&ha->loop_down_timer) &&
2443             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2444                 do {
2445                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2446
2447                         /*
2448                          * Issue marker command only when we are going to start
2449                          * the I/O.
2450                          */
2451                         ha->marker_needed = 1;
2452                 } while (!atomic_read(&ha->loop_down_timer) &&
2453                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2454         }
2455 }
2456
2457 static void
2458 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2459 {
2460         struct scsi_cmnd *cmd = sp->cmd;
2461
2462         if (sp->flags & SRB_DMA_VALID) {
2463                 scsi_dma_unmap(cmd);
2464                 sp->flags &= ~SRB_DMA_VALID;
2465         }
2466         CMD_SP(cmd) = NULL;
2467 }
2468
2469 void
2470 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2471 {
2472         struct scsi_cmnd *cmd = sp->cmd;
2473
2474         qla2x00_sp_free_dma(ha, sp);
2475
2476         mempool_free(sp, ha->srb_mempool);
2477
2478         cmd->scsi_done(cmd);
2479 }
2480
2481 /**************************************************************************
2482 *   qla2x00_timer
2483 *
2484 * Description:
2485 *   One second timer
2486 *
2487 * Context: Interrupt
2488 ***************************************************************************/
2489 void
2490 qla2x00_timer(scsi_qla_host_t *ha)
2491 {
2492         unsigned long   cpu_flags = 0;
2493         fc_port_t       *fcport;
2494         int             start_dpc = 0;
2495         int             index;
2496         srb_t           *sp;
2497         int             t;
2498         scsi_qla_host_t *pha = to_qla_parent(ha);
2499
2500         /*
2501          * Ports - Port down timer.
2502          *
2503          * Whenever, a port is in the LOST state we start decrementing its port
2504          * down timer every second until it reaches zero. Once  it reaches zero
2505          * the port it marked DEAD.
2506          */
2507         t = 0;
2508         list_for_each_entry(fcport, &ha->fcports, list) {
2509                 if (fcport->port_type != FCT_TARGET)
2510                         continue;
2511
2512                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2513
2514                         if (atomic_read(&fcport->port_down_timer) == 0)
2515                                 continue;
2516
2517                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2518                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2519
2520                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2521                             "%d remaining\n",
2522                             ha->host_no,
2523                             t, atomic_read(&fcport->port_down_timer)));
2524                 }
2525                 t++;
2526         } /* End of for fcport  */
2527
2528
2529         /* Loop down handler. */
2530         if (atomic_read(&ha->loop_down_timer) > 0 &&
2531             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2532
2533                 if (atomic_read(&ha->loop_down_timer) ==
2534                     ha->loop_down_abort_time) {
2535
2536                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2537                             "queues before time expire\n",
2538                             ha->host_no));
2539
2540                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2541                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2542
2543                         /* Schedule an ISP abort to return any tape commands. */
2544                         /* NPIV - scan physical port only */
2545                         if (!ha->parent) {
2546                                 spin_lock_irqsave(&ha->hardware_lock,
2547                                     cpu_flags);
2548                                 for (index = 1;
2549                                     index < MAX_OUTSTANDING_COMMANDS;
2550                                     index++) {
2551                                         fc_port_t *sfcp;
2552
2553                                         sp = ha->outstanding_cmds[index];
2554                                         if (!sp)
2555                                                 continue;
2556                                         sfcp = sp->fcport;
2557                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2558                                                 continue;
2559
2560                                         set_bit(ISP_ABORT_NEEDED,
2561                                             &ha->dpc_flags);
2562                                         break;
2563                                 }
2564                                 spin_unlock_irqrestore(&ha->hardware_lock,
2565                                     cpu_flags);
2566                         }
2567                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2568                         start_dpc++;
2569                 }
2570
2571                 /* if the loop has been down for 4 minutes, reinit adapter */
2572                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2573                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2574                             "restarting queues.\n",
2575                             ha->host_no));
2576
2577                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2578                         start_dpc++;
2579
2580                         if (!(ha->device_flags & DFLG_NO_CABLE) &&
2581                             !ha->parent) {
2582                                 DEBUG(printk("scsi(%ld): Loop down - "
2583                                     "aborting ISP.\n",
2584                                     ha->host_no));
2585                                 qla_printk(KERN_WARNING, ha,
2586                                     "Loop down - aborting ISP.\n");
2587
2588                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2589                         }
2590                 }
2591                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2592                     ha->host_no,
2593                     atomic_read(&ha->loop_down_timer)));
2594         }
2595
2596         /* Check if beacon LED needs to be blinked */
2597         if (ha->beacon_blink_led == 1) {
2598                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2599                 start_dpc++;
2600         }
2601
2602         /* Process any deferred work. */
2603         if (!list_empty(&ha->work_list))
2604                 start_dpc++;
2605
2606         /* Schedule the DPC routine if needed */
2607         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2608             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2609             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2610             start_dpc ||
2611             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2612             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2613             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2614             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2615                 qla2xxx_wake_dpc(pha);
2616
2617         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2618 }
2619
2620 /* Firmware interface routines. */
2621
2622 #define FW_BLOBS        6
2623 #define FW_ISP21XX      0
2624 #define FW_ISP22XX      1
2625 #define FW_ISP2300      2
2626 #define FW_ISP2322      3
2627 #define FW_ISP24XX      4
2628 #define FW_ISP25XX      5
2629
2630 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2631 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2632 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2633 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2634 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2635 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2636
2637 static DECLARE_MUTEX(qla_fw_lock);
2638
2639 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2640         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2641         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2642         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2643         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2644         { .name = FW_FILE_ISP24XX, },
2645         { .name = FW_FILE_ISP25XX, },
2646 };
2647
2648 struct fw_blob *
2649 qla2x00_request_firmware(scsi_qla_host_t *ha)
2650 {
2651         struct fw_blob *blob;
2652
2653         blob = NULL;
2654         if (IS_QLA2100(ha)) {
2655                 blob = &qla_fw_blobs[FW_ISP21XX];
2656         } else if (IS_QLA2200(ha)) {
2657                 blob = &qla_fw_blobs[FW_ISP22XX];
2658         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2659                 blob = &qla_fw_blobs[FW_ISP2300];
2660         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2661                 blob = &qla_fw_blobs[FW_ISP2322];
2662         } else if (IS_QLA24XX_TYPE(ha)) {
2663                 blob = &qla_fw_blobs[FW_ISP24XX];
2664         } else if (IS_QLA25XX(ha)) {
2665                 blob = &qla_fw_blobs[FW_ISP25XX];
2666         }
2667
2668         down(&qla_fw_lock);
2669         if (blob->fw)
2670                 goto out;
2671
2672         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2673                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2674                     "(%s).\n", ha->host_no, blob->name));
2675                 blob->fw = NULL;
2676                 blob = NULL;
2677                 goto out;
2678         }
2679
2680 out:
2681         up(&qla_fw_lock);
2682         return blob;
2683 }
2684
2685 static void
2686 qla2x00_release_firmware(void)
2687 {
2688         int idx;
2689
2690         down(&qla_fw_lock);
2691         for (idx = 0; idx < FW_BLOBS; idx++)
2692                 if (qla_fw_blobs[idx].fw)
2693                         release_firmware(qla_fw_blobs[idx].fw);
2694         up(&qla_fw_lock);
2695 }
2696
2697 static pci_ers_result_t
2698 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2699 {
2700         switch (state) {
2701         case pci_channel_io_normal:
2702                 return PCI_ERS_RESULT_CAN_RECOVER;
2703         case pci_channel_io_frozen:
2704                 pci_disable_device(pdev);
2705                 return PCI_ERS_RESULT_NEED_RESET;
2706         case pci_channel_io_perm_failure:
2707                 qla2x00_remove_one(pdev);
2708                 return PCI_ERS_RESULT_DISCONNECT;
2709         }
2710         return PCI_ERS_RESULT_NEED_RESET;
2711 }
2712
2713 static pci_ers_result_t
2714 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2715 {
2716         int risc_paused = 0;
2717         uint32_t stat;
2718         unsigned long flags;
2719         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2720         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2721         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2722
2723         spin_lock_irqsave(&ha->hardware_lock, flags);
2724         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2725                 stat = RD_REG_DWORD(&reg->hccr);
2726                 if (stat & HCCR_RISC_PAUSE)
2727                         risc_paused = 1;
2728         } else if (IS_QLA23XX(ha)) {
2729                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2730                 if (stat & HSR_RISC_PAUSED)
2731                         risc_paused = 1;
2732         } else if (IS_FWI2_CAPABLE(ha)) {
2733                 stat = RD_REG_DWORD(&reg24->host_status);
2734                 if (stat & HSRX_RISC_PAUSED)
2735                         risc_paused = 1;
2736         }
2737         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2738
2739         if (risc_paused) {
2740                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2741                     "Dumping firmware!\n");
2742                 ha->isp_ops->fw_dump(ha, 0);
2743
2744                 return PCI_ERS_RESULT_NEED_RESET;
2745         } else
2746                 return PCI_ERS_RESULT_RECOVERED;
2747 }
2748
2749 static pci_ers_result_t
2750 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2751 {
2752         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2753         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2754         int rc;
2755
2756         if (ha->mem_only)
2757                 rc = pci_enable_device_mem(pdev);
2758         else
2759                 rc = pci_enable_device(pdev);
2760
2761         if (rc) {
2762                 qla_printk(KERN_WARNING, ha,
2763                     "Can't re-enable PCI device after reset.\n");
2764
2765                 return ret;
2766         }
2767         pci_set_master(pdev);
2768
2769         if (ha->isp_ops->pci_config(ha))
2770                 return ret;
2771
2772         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2773         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2774                 ret =  PCI_ERS_RESULT_RECOVERED;
2775         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2776
2777         return ret;
2778 }
2779
2780 static void
2781 qla2xxx_pci_resume(struct pci_dev *pdev)
2782 {
2783         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2784         int ret;
2785
2786         ret = qla2x00_wait_for_hba_online(ha);
2787         if (ret != QLA_SUCCESS) {
2788                 qla_printk(KERN_ERR, ha,
2789                     "the device failed to resume I/O "
2790                     "from slot/link_reset");
2791         }
2792         pci_cleanup_aer_uncorrect_error_status(pdev);
2793 }
2794
2795 static struct pci_error_handlers qla2xxx_err_handler = {
2796         .error_detected = qla2xxx_pci_error_detected,
2797         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2798         .slot_reset = qla2xxx_pci_slot_reset,
2799         .resume = qla2xxx_pci_resume,
2800 };
2801
2802 static struct pci_device_id qla2xxx_pci_tbl[] = {
2803         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2804         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2805         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2806         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2807         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2808         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2809         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2810         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2811         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2812         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2813         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2814         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2815         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2816         { 0 },
2817 };
2818 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2819
2820 static struct pci_driver qla2xxx_pci_driver = {
2821         .name           = QLA2XXX_DRIVER_NAME,
2822         .driver         = {
2823                 .owner          = THIS_MODULE,
2824         },
2825         .id_table       = qla2xxx_pci_tbl,
2826         .probe          = qla2x00_probe_one,
2827         .remove         = qla2x00_remove_one,
2828         .err_handler    = &qla2xxx_err_handler,
2829 };
2830
2831 /**
2832  * qla2x00_module_init - Module initialization.
2833  **/
2834 static int __init
2835 qla2x00_module_init(void)
2836 {
2837         int ret = 0;
2838
2839         /* Allocate cache for SRBs. */
2840         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2841             SLAB_HWCACHE_ALIGN, NULL);
2842         if (srb_cachep == NULL) {
2843                 printk(KERN_ERR
2844                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2845                 return -ENOMEM;
2846         }
2847
2848         /* Derive version string. */
2849         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2850         if (ql2xextended_error_logging)
2851                 strcat(qla2x00_version_str, "-debug");
2852
2853         qla2xxx_transport_template =
2854             fc_attach_transport(&qla2xxx_transport_functions);
2855         if (!qla2xxx_transport_template) {
2856                 kmem_cache_destroy(srb_cachep);
2857                 return -ENODEV;
2858         }
2859         qla2xxx_transport_vport_template =
2860             fc_attach_transport(&qla2xxx_transport_vport_functions);
2861         if (!qla2xxx_transport_vport_template) {
2862                 kmem_cache_destroy(srb_cachep);
2863                 fc_release_transport(qla2xxx_transport_template);
2864                 return -ENODEV;
2865         }
2866
2867         printk(KERN_INFO "QLogic Fibre Channel HBA Driver\n");
2868         ret = pci_register_driver(&qla2xxx_pci_driver);
2869         if (ret) {
2870                 kmem_cache_destroy(srb_cachep);
2871                 fc_release_transport(qla2xxx_transport_template);
2872                 fc_release_transport(qla2xxx_transport_vport_template);
2873         }
2874         return ret;
2875 }
2876
2877 /**
2878  * qla2x00_module_exit - Module cleanup.
2879  **/
2880 static void __exit
2881 qla2x00_module_exit(void)
2882 {
2883         pci_unregister_driver(&qla2xxx_pci_driver);
2884         qla2x00_release_firmware();
2885         kmem_cache_destroy(srb_cachep);
2886         fc_release_transport(qla2xxx_transport_template);
2887         fc_release_transport(qla2xxx_transport_vport_template);
2888 }
2889
2890 module_init(qla2x00_module_init);
2891 module_exit(qla2x00_module_exit);
2892
2893 MODULE_AUTHOR("QLogic Corporation");
2894 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2895 MODULE_LICENSE("GPL");
2896 MODULE_VERSION(QLA2XXX_VERSION);
2897 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2898 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2899 MODULE_FIRMWARE(FW_FILE_ISP2300);
2900 MODULE_FIRMWARE(FW_FILE_ISP2322);
2901 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2902 MODULE_FIRMWARE(FW_FILE_ISP25XX);