[SCSI] qla2xxx: Don't leak SG-DMA mappings while aborting commands.
[pandora-kernel.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 #include <linux/mutex.h>
14
15 #include <scsi/scsi_tcq.h>
16 #include <scsi/scsicam.h>
17 #include <scsi/scsi_transport.h>
18 #include <scsi/scsi_transport_fc.h>
19
20 /*
21  * Driver version
22  */
23 char qla2x00_version_str[40];
24
25 /*
26  * SRB allocation cache
27  */
28 static struct kmem_cache *srb_cachep;
29
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 int ql2xiidmaenable=1;
90 module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
91 MODULE_PARM_DESC(ql2xiidmaenable,
92                 "Enables iIDMA settings "
93                 "Default is 1 - perform iIDMA. 0 - no iIDMA.");
94
95
96 /*
97  * SCSI host template entry points
98  */
99 static int qla2xxx_slave_configure(struct scsi_device * device);
100 static int qla2xxx_slave_alloc(struct scsi_device *);
101 static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
102 static void qla2xxx_scan_start(struct Scsi_Host *);
103 static void qla2xxx_slave_destroy(struct scsi_device *);
104 static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
105                 void (*fn)(struct scsi_cmnd *));
106 static int qla24xx_queuecommand(struct scsi_cmnd *cmd,
107                 void (*fn)(struct scsi_cmnd *));
108 static int qla2xxx_eh_abort(struct scsi_cmnd *);
109 static int qla2xxx_eh_device_reset(struct scsi_cmnd *);
110 static int qla2xxx_eh_target_reset(struct scsi_cmnd *);
111 static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
112 static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
113
114 static int qla2x00_change_queue_depth(struct scsi_device *, int);
115 static int qla2x00_change_queue_type(struct scsi_device *, int);
116
117 static struct scsi_host_template qla2x00_driver_template = {
118         .module                 = THIS_MODULE,
119         .name                   = QLA2XXX_DRIVER_NAME,
120         .queuecommand           = qla2x00_queuecommand,
121
122         .eh_abort_handler       = qla2xxx_eh_abort,
123         .eh_device_reset_handler = qla2xxx_eh_device_reset,
124         .eh_target_reset_handler = qla2xxx_eh_target_reset,
125         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
126         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
127
128         .slave_configure        = qla2xxx_slave_configure,
129
130         .slave_alloc            = qla2xxx_slave_alloc,
131         .slave_destroy          = qla2xxx_slave_destroy,
132         .scan_finished          = qla2xxx_scan_finished,
133         .scan_start             = qla2xxx_scan_start,
134         .change_queue_depth     = qla2x00_change_queue_depth,
135         .change_queue_type      = qla2x00_change_queue_type,
136         .this_id                = -1,
137         .cmd_per_lun            = 3,
138         .use_clustering         = ENABLE_CLUSTERING,
139         .sg_tablesize           = SG_ALL,
140
141         /*
142          * The RISC allows for each command to transfer (2^32-1) bytes of data,
143          * which equates to 0x800000 sectors.
144          */
145         .max_sectors            = 0xFFFF,
146         .shost_attrs            = qla2x00_host_attrs,
147 };
148
149 struct scsi_host_template qla24xx_driver_template = {
150         .module                 = THIS_MODULE,
151         .name                   = QLA2XXX_DRIVER_NAME,
152         .queuecommand           = qla24xx_queuecommand,
153
154         .eh_abort_handler       = qla2xxx_eh_abort,
155         .eh_device_reset_handler = qla2xxx_eh_device_reset,
156         .eh_target_reset_handler = qla2xxx_eh_target_reset,
157         .eh_bus_reset_handler   = qla2xxx_eh_bus_reset,
158         .eh_host_reset_handler  = qla2xxx_eh_host_reset,
159
160         .slave_configure        = qla2xxx_slave_configure,
161
162         .slave_alloc            = qla2xxx_slave_alloc,
163         .slave_destroy          = qla2xxx_slave_destroy,
164         .scan_finished          = qla2xxx_scan_finished,
165         .scan_start             = qla2xxx_scan_start,
166         .change_queue_depth     = qla2x00_change_queue_depth,
167         .change_queue_type      = qla2x00_change_queue_type,
168         .this_id                = -1,
169         .cmd_per_lun            = 3,
170         .use_clustering         = ENABLE_CLUSTERING,
171         .sg_tablesize           = SG_ALL,
172
173         .max_sectors            = 0xFFFF,
174         .shost_attrs            = qla2x00_host_attrs,
175 };
176
177 static struct scsi_transport_template *qla2xxx_transport_template = NULL;
178 struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
179
180 /* TODO Convert to inlines
181  *
182  * Timer routines
183  */
184
185 __inline__ void
186 qla2x00_start_timer(scsi_qla_host_t *ha, void *func, unsigned long interval)
187 {
188         init_timer(&ha->timer);
189         ha->timer.expires = jiffies + interval * HZ;
190         ha->timer.data = (unsigned long)ha;
191         ha->timer.function = (void (*)(unsigned long))func;
192         add_timer(&ha->timer);
193         ha->timer_active = 1;
194 }
195
196 static inline void
197 qla2x00_restart_timer(scsi_qla_host_t *ha, unsigned long interval)
198 {
199         mod_timer(&ha->timer, jiffies + interval * HZ);
200 }
201
202 static __inline__ void
203 qla2x00_stop_timer(scsi_qla_host_t *ha)
204 {
205         del_timer_sync(&ha->timer);
206         ha->timer_active = 0;
207 }
208
209 static int qla2x00_do_dpc(void *data);
210
211 static void qla2x00_rst_aen(scsi_qla_host_t *);
212
213 static int qla2x00_mem_alloc(scsi_qla_host_t *);
214 static void qla2x00_mem_free(scsi_qla_host_t *ha);
215 static void qla2x00_sp_free_dma(scsi_qla_host_t *, srb_t *);
216
217 /* -------------------------------------------------------------------------- */
218
219 static char *
220 qla2x00_pci_info_str(struct scsi_qla_host *ha, char *str)
221 {
222         static char *pci_bus_modes[] = {
223                 "33", "66", "100", "133",
224         };
225         uint16_t pci_bus;
226
227         strcpy(str, "PCI");
228         pci_bus = (ha->pci_attr & (BIT_9 | BIT_10)) >> 9;
229         if (pci_bus) {
230                 strcat(str, "-X (");
231                 strcat(str, pci_bus_modes[pci_bus]);
232         } else {
233                 pci_bus = (ha->pci_attr & BIT_8) >> 8;
234                 strcat(str, " (");
235                 strcat(str, pci_bus_modes[pci_bus]);
236         }
237         strcat(str, " MHz)");
238
239         return (str);
240 }
241
242 static char *
243 qla24xx_pci_info_str(struct scsi_qla_host *ha, char *str)
244 {
245         static char *pci_bus_modes[] = { "33", "66", "100", "133", };
246         uint32_t pci_bus;
247         int pcie_reg;
248
249         pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
250         if (pcie_reg) {
251                 char lwstr[6];
252                 uint16_t pcie_lstat, lspeed, lwidth;
253
254                 pcie_reg += 0x12;
255                 pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
256                 lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
257                 lwidth = (pcie_lstat &
258                     (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
259
260                 strcpy(str, "PCIe (");
261                 if (lspeed == 1)
262                         strcat(str, "2.5GT/s ");
263                 else if (lspeed == 2)
264                         strcat(str, "5.0GT/s ");
265                 else
266                         strcat(str, "<unknown> ");
267                 snprintf(lwstr, sizeof(lwstr), "x%d)", lwidth);
268                 strcat(str, lwstr);
269
270                 return str;
271         }
272
273         strcpy(str, "PCI");
274         pci_bus = (ha->pci_attr & CSRX_PCIX_BUS_MODE_MASK) >> 8;
275         if (pci_bus == 0 || pci_bus == 8) {
276                 strcat(str, " (");
277                 strcat(str, pci_bus_modes[pci_bus >> 3]);
278         } else {
279                 strcat(str, "-X ");
280                 if (pci_bus & BIT_2)
281                         strcat(str, "Mode 2");
282                 else
283                         strcat(str, "Mode 1");
284                 strcat(str, " (");
285                 strcat(str, pci_bus_modes[pci_bus & ~BIT_2]);
286         }
287         strcat(str, " MHz)");
288
289         return str;
290 }
291
292 static char *
293 qla2x00_fw_version_str(struct scsi_qla_host *ha, char *str)
294 {
295         char un_str[10];
296
297         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
298             ha->fw_minor_version,
299             ha->fw_subminor_version);
300
301         if (ha->fw_attributes & BIT_9) {
302                 strcat(str, "FLX");
303                 return (str);
304         }
305
306         switch (ha->fw_attributes & 0xFF) {
307         case 0x7:
308                 strcat(str, "EF");
309                 break;
310         case 0x17:
311                 strcat(str, "TP");
312                 break;
313         case 0x37:
314                 strcat(str, "IP");
315                 break;
316         case 0x77:
317                 strcat(str, "VI");
318                 break;
319         default:
320                 sprintf(un_str, "(%x)", ha->fw_attributes);
321                 strcat(str, un_str);
322                 break;
323         }
324         if (ha->fw_attributes & 0x100)
325                 strcat(str, "X");
326
327         return (str);
328 }
329
330 static char *
331 qla24xx_fw_version_str(struct scsi_qla_host *ha, char *str)
332 {
333         sprintf(str, "%d.%02d.%02d ", ha->fw_major_version,
334             ha->fw_minor_version,
335             ha->fw_subminor_version);
336
337         if (ha->fw_attributes & BIT_0)
338                 strcat(str, "[Class 2] ");
339         if (ha->fw_attributes & BIT_1)
340                 strcat(str, "[IP] ");
341         if (ha->fw_attributes & BIT_2)
342                 strcat(str, "[Multi-ID] ");
343         if (ha->fw_attributes & BIT_3)
344                 strcat(str, "[SB-2] ");
345         if (ha->fw_attributes & BIT_4)
346                 strcat(str, "[T10 CRC] ");
347         if (ha->fw_attributes & BIT_5)
348                 strcat(str, "[VI] ");
349         if (ha->fw_attributes & BIT_10)
350                 strcat(str, "[84XX] ");
351         if (ha->fw_attributes & BIT_13)
352                 strcat(str, "[Experimental]");
353         return str;
354 }
355
356 static inline srb_t *
357 qla2x00_get_new_sp(scsi_qla_host_t *ha, fc_port_t *fcport,
358     struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
359 {
360         srb_t *sp;
361
362         sp = mempool_alloc(ha->srb_mempool, GFP_ATOMIC);
363         if (!sp)
364                 return sp;
365
366         sp->ha = ha;
367         sp->fcport = fcport;
368         sp->cmd = cmd;
369         sp->flags = 0;
370         CMD_SP(cmd) = (void *)sp;
371         cmd->scsi_done = done;
372
373         return sp;
374 }
375
376 static int
377 qla2x00_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
378 {
379         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
380         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
381         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
382         srb_t *sp;
383         int rval;
384
385         if (unlikely(pci_channel_offline(ha->pdev))) {
386                 cmd->result = DID_REQUEUE << 16;
387                 goto qc_fail_command;
388         }
389
390         rval = fc_remote_port_chkready(rport);
391         if (rval) {
392                 cmd->result = rval;
393                 goto qc_fail_command;
394         }
395
396         /* Close window on fcport/rport state-transitioning. */
397         if (fcport->drport) {
398                 cmd->result = DID_IMM_RETRY << 16;
399                 goto qc_fail_command;
400         }
401
402         if (atomic_read(&fcport->state) != FCS_ONLINE) {
403                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
404                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
405                         cmd->result = DID_NO_CONNECT << 16;
406                         goto qc_fail_command;
407                 }
408                 goto qc_host_busy;
409         }
410
411         spin_unlock_irq(ha->host->host_lock);
412
413         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
414         if (!sp)
415                 goto qc_host_busy_lock;
416
417         rval = qla2x00_start_scsi(sp);
418         if (rval != QLA_SUCCESS)
419                 goto qc_host_busy_free_sp;
420
421         spin_lock_irq(ha->host->host_lock);
422
423         return 0;
424
425 qc_host_busy_free_sp:
426         qla2x00_sp_free_dma(ha, sp);
427         mempool_free(sp, ha->srb_mempool);
428
429 qc_host_busy_lock:
430         spin_lock_irq(ha->host->host_lock);
431
432 qc_host_busy:
433         return SCSI_MLQUEUE_HOST_BUSY;
434
435 qc_fail_command:
436         done(cmd);
437
438         return 0;
439 }
440
441
442 static int
443 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
444 {
445         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
446         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
447         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
448         srb_t *sp;
449         int rval;
450         scsi_qla_host_t *pha = to_qla_parent(ha);
451
452         if (unlikely(pci_channel_offline(pha->pdev))) {
453                 cmd->result = DID_REQUEUE << 16;
454                 goto qc24_fail_command;
455         }
456
457         rval = fc_remote_port_chkready(rport);
458         if (rval) {
459                 cmd->result = rval;
460                 goto qc24_fail_command;
461         }
462
463         /* Close window on fcport/rport state-transitioning. */
464         if (fcport->drport) {
465                 cmd->result = DID_IMM_RETRY << 16;
466                 goto qc24_fail_command;
467         }
468
469         if (atomic_read(&fcport->state) != FCS_ONLINE) {
470                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
471                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
472                         cmd->result = DID_NO_CONNECT << 16;
473                         goto qc24_fail_command;
474                 }
475                 goto qc24_host_busy;
476         }
477
478         spin_unlock_irq(ha->host->host_lock);
479
480         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
481         if (!sp)
482                 goto qc24_host_busy_lock;
483
484         rval = qla24xx_start_scsi(sp);
485         if (rval != QLA_SUCCESS)
486                 goto qc24_host_busy_free_sp;
487
488         spin_lock_irq(ha->host->host_lock);
489
490         return 0;
491
492 qc24_host_busy_free_sp:
493         qla2x00_sp_free_dma(pha, sp);
494         mempool_free(sp, pha->srb_mempool);
495
496 qc24_host_busy_lock:
497         spin_lock_irq(ha->host->host_lock);
498
499 qc24_host_busy:
500         return SCSI_MLQUEUE_HOST_BUSY;
501
502 qc24_fail_command:
503         done(cmd);
504
505         return 0;
506 }
507
508
509 /*
510  * qla2x00_eh_wait_on_command
511  *    Waits for the command to be returned by the Firmware for some
512  *    max time.
513  *
514  * Input:
515  *    ha = actual ha whose done queue will contain the command
516  *            returned by firmware.
517  *    cmd = Scsi Command to wait on.
518  *    flag = Abort/Reset(Bus or Device Reset)
519  *
520  * Return:
521  *    Not Found : 0
522  *    Found : 1
523  */
524 static int
525 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
526 {
527 #define ABORT_POLLING_PERIOD    1000
528 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
529         unsigned long wait_iter = ABORT_WAIT_ITER;
530         int ret = QLA_SUCCESS;
531
532         while (CMD_SP(cmd)) {
533                 msleep(ABORT_POLLING_PERIOD);
534
535                 if (--wait_iter)
536                         break;
537         }
538         if (CMD_SP(cmd))
539                 ret = QLA_FUNCTION_FAILED;
540
541         return ret;
542 }
543
544 /*
545  * qla2x00_wait_for_hba_online
546  *    Wait till the HBA is online after going through
547  *    <= MAX_RETRIES_OF_ISP_ABORT  or
548  *    finally HBA is disabled ie marked offline
549  *
550  * Input:
551  *     ha - pointer to host adapter structure
552  *
553  * Note:
554  *    Does context switching-Release SPIN_LOCK
555  *    (if any) before calling this routine.
556  *
557  * Return:
558  *    Success (Adapter is online) : 0
559  *    Failed  (Adapter is offline/disabled) : 1
560  */
561 int
562 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
563 {
564         int             return_status;
565         unsigned long   wait_online;
566         scsi_qla_host_t *pha = to_qla_parent(ha);
567
568         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
569         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
570             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
571             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
572             pha->dpc_active) && time_before(jiffies, wait_online)) {
573
574                 msleep(1000);
575         }
576         if (pha->flags.online)
577                 return_status = QLA_SUCCESS;
578         else
579                 return_status = QLA_FUNCTION_FAILED;
580
581         return (return_status);
582 }
583
584 /*
585  * qla2x00_wait_for_loop_ready
586  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
587  *    to be in LOOP_READY state.
588  * Input:
589  *     ha - pointer to host adapter structure
590  *
591  * Note:
592  *    Does context switching-Release SPIN_LOCK
593  *    (if any) before calling this routine.
594  *
595  *
596  * Return:
597  *    Success (LOOP_READY) : 0
598  *    Failed  (LOOP_NOT_READY) : 1
599  */
600 static inline int
601 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
602 {
603         int      return_status = QLA_SUCCESS;
604         unsigned long loop_timeout ;
605         scsi_qla_host_t *pha = to_qla_parent(ha);
606
607         /* wait for 5 min at the max for loop to be ready */
608         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
609
610         while ((!atomic_read(&pha->loop_down_timer) &&
611             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
612             atomic_read(&pha->loop_state) != LOOP_READY) {
613                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
614                         return_status = QLA_FUNCTION_FAILED;
615                         break;
616                 }
617                 msleep(1000);
618                 if (time_after_eq(jiffies, loop_timeout)) {
619                         return_status = QLA_FUNCTION_FAILED;
620                         break;
621                 }
622         }
623         return (return_status);
624 }
625
626 void
627 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
628 {
629         int cnt;
630         unsigned long flags;
631         srb_t *sp;
632         scsi_qla_host_t *ha = fcport->ha;
633         scsi_qla_host_t *pha = to_qla_parent(ha);
634
635         spin_lock_irqsave(&pha->hardware_lock, flags);
636         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
637                 sp = pha->outstanding_cmds[cnt];
638                 if (!sp)
639                         continue;
640                 if (sp->fcport != fcport)
641                         continue;
642
643                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
644                 if (ha->isp_ops->abort_command(ha, sp)) {
645                         DEBUG2(qla_printk(KERN_WARNING, ha,
646                             "Abort failed --  %lx\n", sp->cmd->serial_number));
647                 } else {
648                         if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
649                             QLA_SUCCESS)
650                                 DEBUG2(qla_printk(KERN_WARNING, ha,
651                                     "Abort failed while waiting --  %lx\n",
652                                     sp->cmd->serial_number));
653
654                 }
655                 spin_lock_irqsave(&pha->hardware_lock, flags);
656         }
657         spin_unlock_irqrestore(&pha->hardware_lock, flags);
658 }
659
660 static void
661 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
662 {
663         struct Scsi_Host *shost = cmnd->device->host;
664         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
665         unsigned long flags;
666
667         spin_lock_irqsave(shost->host_lock, flags);
668         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
669                 spin_unlock_irqrestore(shost->host_lock, flags);
670                 msleep(1000);
671                 spin_lock_irqsave(shost->host_lock, flags);
672         }
673         spin_unlock_irqrestore(shost->host_lock, flags);
674         return;
675 }
676
677 /**************************************************************************
678 * qla2xxx_eh_abort
679 *
680 * Description:
681 *    The abort function will abort the specified command.
682 *
683 * Input:
684 *    cmd = Linux SCSI command packet to be aborted.
685 *
686 * Returns:
687 *    Either SUCCESS or FAILED.
688 *
689 * Note:
690 *    Only return FAILED if command not returned by firmware.
691 **************************************************************************/
692 static int
693 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
694 {
695         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
696         srb_t *sp;
697         int ret, i;
698         unsigned int id, lun;
699         unsigned long serial;
700         unsigned long flags;
701         int wait = 0;
702         scsi_qla_host_t *pha = to_qla_parent(ha);
703
704         qla2x00_block_error_handler(cmd);
705
706         if (!CMD_SP(cmd))
707                 return SUCCESS;
708
709         ret = SUCCESS;
710
711         id = cmd->device->id;
712         lun = cmd->device->lun;
713         serial = cmd->serial_number;
714
715         /* Check active list for command command. */
716         spin_lock_irqsave(&pha->hardware_lock, flags);
717         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
718                 sp = pha->outstanding_cmds[i];
719
720                 if (sp == NULL)
721                         continue;
722
723                 if (sp->cmd != cmd)
724                         continue;
725
726                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
727                     __func__, ha->host_no, sp, serial));
728
729                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
730                 if (ha->isp_ops->abort_command(ha, sp)) {
731                         DEBUG2(printk("%s(%ld): abort_command "
732                             "mbx failed.\n", __func__, ha->host_no));
733                 } else {
734                         DEBUG3(printk("%s(%ld): abort_command "
735                             "mbx success.\n", __func__, ha->host_no));
736                         wait = 1;
737                 }
738                 spin_lock_irqsave(&pha->hardware_lock, flags);
739
740                 break;
741         }
742         spin_unlock_irqrestore(&pha->hardware_lock, flags);
743
744         /* Wait for the command to be returned. */
745         if (wait) {
746                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
747                         qla_printk(KERN_ERR, ha,
748                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
749                             "%x.\n", ha->host_no, id, lun, serial, ret);
750                         ret = FAILED;
751                 }
752         }
753
754         qla_printk(KERN_INFO, ha,
755             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
756             ha->host_no, id, lun, wait, serial, ret);
757
758         return ret;
759 }
760
761 enum nexus_wait_type {
762         WAIT_HOST = 0,
763         WAIT_TARGET,
764         WAIT_LUN,
765 };
766
767 static int
768 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
769     unsigned int l, enum nexus_wait_type type)
770 {
771         int cnt, match, status;
772         srb_t *sp;
773         unsigned long flags;
774         scsi_qla_host_t *pha = to_qla_parent(ha);
775
776         status = QLA_SUCCESS;
777         spin_lock_irqsave(&pha->hardware_lock, flags);
778         for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
779             cnt++) {
780                 sp = pha->outstanding_cmds[cnt];
781                 if (!sp)
782                         continue;
783                 if (ha->vp_idx != sp->ha->vp_idx)
784                         continue;
785                 match = 0;
786                 switch (type) {
787                 case WAIT_HOST:
788                         match = 1;
789                         break;
790                 case WAIT_TARGET:
791                         match = sp->cmd->device->id == t;
792                         break;
793                 case WAIT_LUN:
794                         match = (sp->cmd->device->id == t &&
795                             sp->cmd->device->lun == l);
796                         break;
797                 }
798                 if (!match)
799                         continue;
800
801                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
802                 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
803                 spin_lock_irqsave(&pha->hardware_lock, flags);
804         }
805         spin_unlock_irqrestore(&pha->hardware_lock, flags);
806
807         return status;
808 }
809
810 static char *reset_errors[] = {
811         "HBA not online",
812         "HBA not ready",
813         "Task management failed",
814         "Waiting for command completions",
815 };
816
817 static int
818 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
819     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
820 {
821         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
822         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
823         int err;
824
825         qla2x00_block_error_handler(cmd);
826
827         if (!fcport)
828                 return FAILED;
829
830         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
831             ha->host_no, cmd->device->id, cmd->device->lun, name);
832
833         err = 0;
834         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
835                 goto eh_reset_failed;
836         err = 1;
837         if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
838                 goto eh_reset_failed;
839         err = 2;
840         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
841                 goto eh_reset_failed;
842         err = 3;
843         if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
844             cmd->device->lun, type) != QLA_SUCCESS)
845                 goto eh_reset_failed;
846
847         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
848             ha->host_no, cmd->device->id, cmd->device->lun, name);
849
850         return SUCCESS;
851
852  eh_reset_failed:
853         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
854             ha->host_no, cmd->device->id, cmd->device->lun, name,
855             reset_errors[err]);
856         return FAILED;
857 }
858
859 static int
860 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
861 {
862         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
863
864         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
865             ha->isp_ops->lun_reset);
866 }
867
868 static int
869 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
870 {
871         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
872
873         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
874             ha->isp_ops->target_reset);
875 }
876
877 /**************************************************************************
878 * qla2xxx_eh_bus_reset
879 *
880 * Description:
881 *    The bus reset function will reset the bus and abort any executing
882 *    commands.
883 *
884 * Input:
885 *    cmd = Linux SCSI command packet of the command that cause the
886 *          bus reset.
887 *
888 * Returns:
889 *    SUCCESS/FAILURE (defined as macro in scsi.h).
890 *
891 **************************************************************************/
892 static int
893 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
894 {
895         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
896         scsi_qla_host_t *pha = to_qla_parent(ha);
897         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
898         int ret = FAILED;
899         unsigned int id, lun;
900         unsigned long serial;
901
902         qla2x00_block_error_handler(cmd);
903
904         id = cmd->device->id;
905         lun = cmd->device->lun;
906         serial = cmd->serial_number;
907
908         if (!fcport)
909                 return ret;
910
911         qla_printk(KERN_INFO, ha,
912             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
913
914         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
915                 DEBUG2(printk("%s failed:board disabled\n",__func__));
916                 goto eh_bus_reset_done;
917         }
918
919         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
920                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
921                         ret = SUCCESS;
922         }
923         if (ret == FAILED)
924                 goto eh_bus_reset_done;
925
926         /* Flush outstanding commands. */
927         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
928             QLA_SUCCESS)
929                 ret = FAILED;
930
931 eh_bus_reset_done:
932         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
933             (ret == FAILED) ? "failed" : "succeded");
934
935         return ret;
936 }
937
938 /**************************************************************************
939 * qla2xxx_eh_host_reset
940 *
941 * Description:
942 *    The reset function will reset the Adapter.
943 *
944 * Input:
945 *      cmd = Linux SCSI command packet of the command that cause the
946 *            adapter reset.
947 *
948 * Returns:
949 *      Either SUCCESS or FAILED.
950 *
951 * Note:
952 **************************************************************************/
953 static int
954 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
955 {
956         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
957         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
958         int ret = FAILED;
959         unsigned int id, lun;
960         unsigned long serial;
961         scsi_qla_host_t *pha = to_qla_parent(ha);
962
963         qla2x00_block_error_handler(cmd);
964
965         id = cmd->device->id;
966         lun = cmd->device->lun;
967         serial = cmd->serial_number;
968
969         if (!fcport)
970                 return ret;
971
972         qla_printk(KERN_INFO, ha,
973             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
974
975         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
976                 goto eh_host_reset_lock;
977
978         /*
979          * Fixme-may be dpc thread is active and processing
980          * loop_resync,so wait a while for it to
981          * be completed and then issue big hammer.Otherwise
982          * it may cause I/O failure as big hammer marks the
983          * devices as lost kicking of the port_down_timer
984          * while dpc is stuck for the mailbox to complete.
985          */
986         qla2x00_wait_for_loop_ready(ha);
987         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
988         if (qla2x00_abort_isp(pha)) {
989                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
990                 /* failed. schedule dpc to try */
991                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
992
993                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
994                         goto eh_host_reset_lock;
995         }
996         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
997
998         /* Waiting for our command in done_queue to be returned to OS.*/
999         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
1000             QLA_SUCCESS)
1001                 ret = SUCCESS;
1002
1003         if (ha->parent)
1004                 qla2x00_vp_abort_isp(ha);
1005
1006 eh_host_reset_lock:
1007         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1008             (ret == FAILED) ? "failed" : "succeded");
1009
1010         return ret;
1011 }
1012
1013 /*
1014 * qla2x00_loop_reset
1015 *      Issue loop reset.
1016 *
1017 * Input:
1018 *      ha = adapter block pointer.
1019 *
1020 * Returns:
1021 *      0 = success
1022 */
1023 int
1024 qla2x00_loop_reset(scsi_qla_host_t *ha)
1025 {
1026         int ret;
1027         struct fc_port *fcport;
1028
1029         if (ha->flags.enable_lip_full_login) {
1030                 ret = qla2x00_full_login_lip(ha);
1031                 if (ret != QLA_SUCCESS) {
1032                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1033                             "full_login_lip=%d.\n", __func__, ha->host_no,
1034                             ret));
1035                 }
1036                 atomic_set(&ha->loop_state, LOOP_DOWN);
1037                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1038                 qla2x00_mark_all_devices_lost(ha, 0);
1039                 qla2x00_wait_for_loop_ready(ha);
1040         }
1041
1042         if (ha->flags.enable_lip_reset) {
1043                 ret = qla2x00_lip_reset(ha);
1044                 if (ret != QLA_SUCCESS) {
1045                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1046                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1047                 }
1048                 qla2x00_wait_for_loop_ready(ha);
1049         }
1050
1051         if (ha->flags.enable_target_reset) {
1052                 list_for_each_entry(fcport, &ha->fcports, list) {
1053                         if (fcport->port_type != FCT_TARGET)
1054                                 continue;
1055
1056                         ret = ha->isp_ops->target_reset(fcport, 0);
1057                         if (ret != QLA_SUCCESS) {
1058                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1059                                     "target_reset=%d d_id=%x.\n", __func__,
1060                                     ha->host_no, ret, fcport->d_id.b24));
1061                         }
1062                 }
1063         }
1064
1065         /* Issue marker command only when we are going to start the I/O */
1066         ha->marker_needed = 1;
1067
1068         return QLA_SUCCESS;
1069 }
1070
1071 void
1072 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1073 {
1074         int cnt;
1075         unsigned long flags;
1076         srb_t *sp;
1077
1078         spin_lock_irqsave(&ha->hardware_lock, flags);
1079         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1080                 sp = ha->outstanding_cmds[cnt];
1081                 if (sp) {
1082                         ha->outstanding_cmds[cnt] = NULL;
1083                         sp->cmd->result = res;
1084                         qla2x00_sp_compl(ha, sp);
1085                 }
1086         }
1087         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1088 }
1089
1090 static int
1091 qla2xxx_slave_alloc(struct scsi_device *sdev)
1092 {
1093         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1094
1095         if (!rport || fc_remote_port_chkready(rport))
1096                 return -ENXIO;
1097
1098         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1099
1100         return 0;
1101 }
1102
1103 static int
1104 qla2xxx_slave_configure(struct scsi_device *sdev)
1105 {
1106         scsi_qla_host_t *ha = shost_priv(sdev->host);
1107         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1108
1109         if (sdev->tagged_supported)
1110                 scsi_activate_tcq(sdev, ha->max_q_depth);
1111         else
1112                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1113
1114         rport->dev_loss_tmo = ha->port_down_retry_count;
1115
1116         return 0;
1117 }
1118
1119 static void
1120 qla2xxx_slave_destroy(struct scsi_device *sdev)
1121 {
1122         sdev->hostdata = NULL;
1123 }
1124
1125 static int
1126 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1127 {
1128         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1129         return sdev->queue_depth;
1130 }
1131
1132 static int
1133 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1134 {
1135         if (sdev->tagged_supported) {
1136                 scsi_set_tag_type(sdev, tag_type);
1137                 if (tag_type)
1138                         scsi_activate_tcq(sdev, sdev->queue_depth);
1139                 else
1140                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1141         } else
1142                 tag_type = 0;
1143
1144         return tag_type;
1145 }
1146
1147 /**
1148  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1149  * @ha: HA context
1150  *
1151  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1152  * supported addressing method.
1153  */
1154 static void
1155 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1156 {
1157         /* Assume a 32bit DMA mask. */
1158         ha->flags.enable_64bit_addressing = 0;
1159
1160         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1161                 /* Any upper-dword bits set? */
1162                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1163                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1164                         /* Ok, a 64bit DMA mask is applicable. */
1165                         ha->flags.enable_64bit_addressing = 1;
1166                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1167                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1168                         return;
1169                 }
1170         }
1171
1172         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1173         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1174 }
1175
1176 static void
1177 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1178 {
1179         unsigned long flags = 0;
1180         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1181
1182         spin_lock_irqsave(&ha->hardware_lock, flags);
1183         ha->interrupts_on = 1;
1184         /* enable risc and host interrupts */
1185         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1186         RD_REG_WORD(&reg->ictrl);
1187         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1188
1189 }
1190
1191 static void
1192 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1193 {
1194         unsigned long flags = 0;
1195         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1196
1197         spin_lock_irqsave(&ha->hardware_lock, flags);
1198         ha->interrupts_on = 0;
1199         /* disable risc and host interrupts */
1200         WRT_REG_WORD(&reg->ictrl, 0);
1201         RD_REG_WORD(&reg->ictrl);
1202         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1203 }
1204
1205 static void
1206 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1207 {
1208         unsigned long flags = 0;
1209         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1210
1211         spin_lock_irqsave(&ha->hardware_lock, flags);
1212         ha->interrupts_on = 1;
1213         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1214         RD_REG_DWORD(&reg->ictrl);
1215         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1216 }
1217
1218 static void
1219 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1220 {
1221         unsigned long flags = 0;
1222         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1223
1224         spin_lock_irqsave(&ha->hardware_lock, flags);
1225         ha->interrupts_on = 0;
1226         WRT_REG_DWORD(&reg->ictrl, 0);
1227         RD_REG_DWORD(&reg->ictrl);
1228         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1229 }
1230
1231 static struct isp_operations qla2100_isp_ops = {
1232         .pci_config             = qla2100_pci_config,
1233         .reset_chip             = qla2x00_reset_chip,
1234         .chip_diag              = qla2x00_chip_diag,
1235         .config_rings           = qla2x00_config_rings,
1236         .reset_adapter          = qla2x00_reset_adapter,
1237         .nvram_config           = qla2x00_nvram_config,
1238         .update_fw_options      = qla2x00_update_fw_options,
1239         .load_risc              = qla2x00_load_risc,
1240         .pci_info_str           = qla2x00_pci_info_str,
1241         .fw_version_str         = qla2x00_fw_version_str,
1242         .intr_handler           = qla2100_intr_handler,
1243         .enable_intrs           = qla2x00_enable_intrs,
1244         .disable_intrs          = qla2x00_disable_intrs,
1245         .abort_command          = qla2x00_abort_command,
1246         .target_reset           = qla2x00_abort_target,
1247         .lun_reset              = qla2x00_lun_reset,
1248         .fabric_login           = qla2x00_login_fabric,
1249         .fabric_logout          = qla2x00_fabric_logout,
1250         .calc_req_entries       = qla2x00_calc_iocbs_32,
1251         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1252         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1253         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1254         .read_nvram             = qla2x00_read_nvram_data,
1255         .write_nvram            = qla2x00_write_nvram_data,
1256         .fw_dump                = qla2100_fw_dump,
1257         .beacon_on              = NULL,
1258         .beacon_off             = NULL,
1259         .beacon_blink           = NULL,
1260         .read_optrom            = qla2x00_read_optrom_data,
1261         .write_optrom           = qla2x00_write_optrom_data,
1262         .get_flash_version      = qla2x00_get_flash_version,
1263 };
1264
1265 static struct isp_operations qla2300_isp_ops = {
1266         .pci_config             = qla2300_pci_config,
1267         .reset_chip             = qla2x00_reset_chip,
1268         .chip_diag              = qla2x00_chip_diag,
1269         .config_rings           = qla2x00_config_rings,
1270         .reset_adapter          = qla2x00_reset_adapter,
1271         .nvram_config           = qla2x00_nvram_config,
1272         .update_fw_options      = qla2x00_update_fw_options,
1273         .load_risc              = qla2x00_load_risc,
1274         .pci_info_str           = qla2x00_pci_info_str,
1275         .fw_version_str         = qla2x00_fw_version_str,
1276         .intr_handler           = qla2300_intr_handler,
1277         .enable_intrs           = qla2x00_enable_intrs,
1278         .disable_intrs          = qla2x00_disable_intrs,
1279         .abort_command          = qla2x00_abort_command,
1280         .target_reset           = qla2x00_abort_target,
1281         .lun_reset              = qla2x00_lun_reset,
1282         .fabric_login           = qla2x00_login_fabric,
1283         .fabric_logout          = qla2x00_fabric_logout,
1284         .calc_req_entries       = qla2x00_calc_iocbs_32,
1285         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1286         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1287         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1288         .read_nvram             = qla2x00_read_nvram_data,
1289         .write_nvram            = qla2x00_write_nvram_data,
1290         .fw_dump                = qla2300_fw_dump,
1291         .beacon_on              = qla2x00_beacon_on,
1292         .beacon_off             = qla2x00_beacon_off,
1293         .beacon_blink           = qla2x00_beacon_blink,
1294         .read_optrom            = qla2x00_read_optrom_data,
1295         .write_optrom           = qla2x00_write_optrom_data,
1296         .get_flash_version      = qla2x00_get_flash_version,
1297 };
1298
1299 static struct isp_operations qla24xx_isp_ops = {
1300         .pci_config             = qla24xx_pci_config,
1301         .reset_chip             = qla24xx_reset_chip,
1302         .chip_diag              = qla24xx_chip_diag,
1303         .config_rings           = qla24xx_config_rings,
1304         .reset_adapter          = qla24xx_reset_adapter,
1305         .nvram_config           = qla24xx_nvram_config,
1306         .update_fw_options      = qla24xx_update_fw_options,
1307         .load_risc              = qla24xx_load_risc,
1308         .pci_info_str           = qla24xx_pci_info_str,
1309         .fw_version_str         = qla24xx_fw_version_str,
1310         .intr_handler           = qla24xx_intr_handler,
1311         .enable_intrs           = qla24xx_enable_intrs,
1312         .disable_intrs          = qla24xx_disable_intrs,
1313         .abort_command          = qla24xx_abort_command,
1314         .target_reset           = qla24xx_abort_target,
1315         .lun_reset              = qla24xx_lun_reset,
1316         .fabric_login           = qla24xx_login_fabric,
1317         .fabric_logout          = qla24xx_fabric_logout,
1318         .calc_req_entries       = NULL,
1319         .build_iocbs            = NULL,
1320         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1321         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1322         .read_nvram             = qla24xx_read_nvram_data,
1323         .write_nvram            = qla24xx_write_nvram_data,
1324         .fw_dump                = qla24xx_fw_dump,
1325         .beacon_on              = qla24xx_beacon_on,
1326         .beacon_off             = qla24xx_beacon_off,
1327         .beacon_blink           = qla24xx_beacon_blink,
1328         .read_optrom            = qla24xx_read_optrom_data,
1329         .write_optrom           = qla24xx_write_optrom_data,
1330         .get_flash_version      = qla24xx_get_flash_version,
1331 };
1332
1333 static struct isp_operations qla25xx_isp_ops = {
1334         .pci_config             = qla25xx_pci_config,
1335         .reset_chip             = qla24xx_reset_chip,
1336         .chip_diag              = qla24xx_chip_diag,
1337         .config_rings           = qla24xx_config_rings,
1338         .reset_adapter          = qla24xx_reset_adapter,
1339         .nvram_config           = qla24xx_nvram_config,
1340         .update_fw_options      = qla24xx_update_fw_options,
1341         .load_risc              = qla24xx_load_risc,
1342         .pci_info_str           = qla24xx_pci_info_str,
1343         .fw_version_str         = qla24xx_fw_version_str,
1344         .intr_handler           = qla24xx_intr_handler,
1345         .enable_intrs           = qla24xx_enable_intrs,
1346         .disable_intrs          = qla24xx_disable_intrs,
1347         .abort_command          = qla24xx_abort_command,
1348         .target_reset           = qla24xx_abort_target,
1349         .lun_reset              = qla24xx_lun_reset,
1350         .fabric_login           = qla24xx_login_fabric,
1351         .fabric_logout          = qla24xx_fabric_logout,
1352         .calc_req_entries       = NULL,
1353         .build_iocbs            = NULL,
1354         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1355         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1356         .read_nvram             = qla25xx_read_nvram_data,
1357         .write_nvram            = qla25xx_write_nvram_data,
1358         .fw_dump                = qla25xx_fw_dump,
1359         .beacon_on              = qla24xx_beacon_on,
1360         .beacon_off             = qla24xx_beacon_off,
1361         .beacon_blink           = qla24xx_beacon_blink,
1362         .read_optrom            = qla25xx_read_optrom_data,
1363         .write_optrom           = qla24xx_write_optrom_data,
1364         .get_flash_version      = qla24xx_get_flash_version,
1365 };
1366
1367 static inline void
1368 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1369 {
1370         ha->device_type = DT_EXTENDED_IDS;
1371         switch (ha->pdev->device) {
1372         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1373                 ha->device_type |= DT_ISP2100;
1374                 ha->device_type &= ~DT_EXTENDED_IDS;
1375                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1376                 break;
1377         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1378                 ha->device_type |= DT_ISP2200;
1379                 ha->device_type &= ~DT_EXTENDED_IDS;
1380                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1381                 break;
1382         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1383                 ha->device_type |= DT_ISP2300;
1384                 ha->device_type |= DT_ZIO_SUPPORTED;
1385                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1386                 break;
1387         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1388                 ha->device_type |= DT_ISP2312;
1389                 ha->device_type |= DT_ZIO_SUPPORTED;
1390                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1391                 break;
1392         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1393                 ha->device_type |= DT_ISP2322;
1394                 ha->device_type |= DT_ZIO_SUPPORTED;
1395                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1396                     ha->pdev->subsystem_device == 0x0170)
1397                         ha->device_type |= DT_OEM_001;
1398                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1399                 break;
1400         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1401                 ha->device_type |= DT_ISP6312;
1402                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1403                 break;
1404         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1405                 ha->device_type |= DT_ISP6322;
1406                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1407                 break;
1408         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1409                 ha->device_type |= DT_ISP2422;
1410                 ha->device_type |= DT_ZIO_SUPPORTED;
1411                 ha->device_type |= DT_FWI2;
1412                 ha->device_type |= DT_IIDMA;
1413                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1414                 break;
1415         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1416                 ha->device_type |= DT_ISP2432;
1417                 ha->device_type |= DT_ZIO_SUPPORTED;
1418                 ha->device_type |= DT_FWI2;
1419                 ha->device_type |= DT_IIDMA;
1420                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1421                 break;
1422         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1423                 ha->device_type |= DT_ISP8432;
1424                 ha->device_type |= DT_ZIO_SUPPORTED;
1425                 ha->device_type |= DT_FWI2;
1426                 ha->device_type |= DT_IIDMA;
1427                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1428                 break;
1429         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1430                 ha->device_type |= DT_ISP5422;
1431                 ha->device_type |= DT_FWI2;
1432                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1433                 break;
1434         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1435                 ha->device_type |= DT_ISP5432;
1436                 ha->device_type |= DT_FWI2;
1437                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1438                 break;
1439         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1440                 ha->device_type |= DT_ISP2532;
1441                 ha->device_type |= DT_ZIO_SUPPORTED;
1442                 ha->device_type |= DT_FWI2;
1443                 ha->device_type |= DT_IIDMA;
1444                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1445                 break;
1446         }
1447 }
1448
1449 static int
1450 qla2x00_iospace_config(scsi_qla_host_t *ha)
1451 {
1452         resource_size_t pio;
1453
1454         if (pci_request_selected_regions(ha->pdev, ha->bars,
1455             QLA2XXX_DRIVER_NAME)) {
1456                 qla_printk(KERN_WARNING, ha,
1457                     "Failed to reserve PIO/MMIO regions (%s)\n",
1458                     pci_name(ha->pdev));
1459
1460                 goto iospace_error_exit;
1461         }
1462         if (!(ha->bars & 1))
1463                 goto skip_pio;
1464
1465         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1466         pio = pci_resource_start(ha->pdev, 0);
1467         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1468                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1469                         qla_printk(KERN_WARNING, ha,
1470                             "Invalid PCI I/O region size (%s)...\n",
1471                                 pci_name(ha->pdev));
1472                         pio = 0;
1473                 }
1474         } else {
1475                 qla_printk(KERN_WARNING, ha,
1476                     "region #0 not a PIO resource (%s)...\n",
1477                     pci_name(ha->pdev));
1478                 pio = 0;
1479         }
1480         ha->pio_address = pio;
1481
1482 skip_pio:
1483         /* Use MMIO operations for all accesses. */
1484         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1485                 qla_printk(KERN_ERR, ha,
1486                     "region #1 not an MMIO resource (%s), aborting\n",
1487                     pci_name(ha->pdev));
1488                 goto iospace_error_exit;
1489         }
1490         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1491                 qla_printk(KERN_ERR, ha,
1492                     "Invalid PCI mem region size (%s), aborting\n",
1493                         pci_name(ha->pdev));
1494                 goto iospace_error_exit;
1495         }
1496
1497         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1498         if (!ha->iobase) {
1499                 qla_printk(KERN_ERR, ha,
1500                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1501
1502                 goto iospace_error_exit;
1503         }
1504
1505         return (0);
1506
1507 iospace_error_exit:
1508         return (-ENOMEM);
1509 }
1510
1511 static void
1512 qla2xxx_scan_start(struct Scsi_Host *shost)
1513 {
1514         scsi_qla_host_t *ha = shost_priv(shost);
1515
1516         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1517         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1518         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1519 }
1520
1521 static int
1522 qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
1523 {
1524         scsi_qla_host_t *ha = shost_priv(shost);
1525
1526         if (!ha->host)
1527                 return 1;
1528         if (time > ha->loop_reset_delay * HZ)
1529                 return 1;
1530
1531         return atomic_read(&ha->loop_state) == LOOP_READY;
1532 }
1533
1534 /*
1535  * PCI driver interface
1536  */
1537 static int __devinit
1538 qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
1539 {
1540         int     ret = -ENODEV;
1541         struct Scsi_Host *host;
1542         scsi_qla_host_t *ha;
1543         char pci_info[30];
1544         char fw_str[30];
1545         struct scsi_host_template *sht;
1546         int bars, mem_only = 0;
1547
1548         bars = pci_select_bars(pdev, IORESOURCE_MEM | IORESOURCE_IO);
1549         sht = &qla2x00_driver_template;
1550         if (pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2422 ||
1551             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2432 ||
1552             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8432 ||
1553             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5422 ||
1554             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP5432 ||
1555             pdev->device == PCI_DEVICE_ID_QLOGIC_ISP2532) {
1556                 bars = pci_select_bars(pdev, IORESOURCE_MEM);
1557                 sht = &qla24xx_driver_template;
1558                 mem_only = 1;
1559         }
1560
1561         if (mem_only) {
1562                 if (pci_enable_device_mem(pdev))
1563                         goto probe_out;
1564         } else {
1565                 if (pci_enable_device(pdev))
1566                         goto probe_out;
1567         }
1568
1569         if (pci_find_aer_capability(pdev))
1570                 if (pci_enable_pcie_error_reporting(pdev))
1571                         goto probe_out;
1572
1573         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1574         if (host == NULL) {
1575                 printk(KERN_WARNING
1576                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1577                 goto probe_disable_device;
1578         }
1579
1580         /* Clear our data area */
1581         ha = shost_priv(host);
1582         memset(ha, 0, sizeof(scsi_qla_host_t));
1583
1584         ha->pdev = pdev;
1585         ha->host = host;
1586         ha->host_no = host->host_no;
1587         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1588         ha->parent = NULL;
1589         ha->bars = bars;
1590         ha->mem_only = mem_only;
1591         spin_lock_init(&ha->hardware_lock);
1592
1593         /* Set ISP-type information. */
1594         qla2x00_set_isp_flags(ha);
1595
1596         /* Configure PCI I/O space */
1597         ret = qla2x00_iospace_config(ha);
1598         if (ret)
1599                 goto probe_failed;
1600
1601         qla_printk(KERN_INFO, ha,
1602             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1603             ha->iobase);
1604
1605         ha->prev_topology = 0;
1606         ha->init_cb_size = sizeof(init_cb_t);
1607         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1608         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1609         ha->optrom_size = OPTROM_SIZE_2300;
1610
1611         ha->max_q_depth = MAX_Q_DEPTH;
1612         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1613                 ha->max_q_depth = ql2xmaxqdepth;
1614
1615         /* Assign ISP specific operations. */
1616         if (IS_QLA2100(ha)) {
1617                 host->max_id = MAX_TARGETS_2100;
1618                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1619                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1620                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1621                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1622                 host->sg_tablesize = 32;
1623                 ha->gid_list_info_size = 4;
1624                 ha->isp_ops = &qla2100_isp_ops;
1625         } else if (IS_QLA2200(ha)) {
1626                 host->max_id = MAX_TARGETS_2200;
1627                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1628                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1629                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1630                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1631                 ha->gid_list_info_size = 4;
1632                 ha->isp_ops = &qla2100_isp_ops;
1633         } else if (IS_QLA23XX(ha)) {
1634                 host->max_id = MAX_TARGETS_2200;
1635                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1636                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1637                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1638                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1639                 ha->gid_list_info_size = 6;
1640                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1641                         ha->optrom_size = OPTROM_SIZE_2322;
1642                 ha->isp_ops = &qla2300_isp_ops;
1643         } else if (IS_QLA24XX_TYPE(ha)) {
1644                 host->max_id = MAX_TARGETS_2200;
1645                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1646                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1647                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1648                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1649                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1650                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1651                 ha->gid_list_info_size = 8;
1652                 ha->optrom_size = OPTROM_SIZE_24XX;
1653                 ha->isp_ops = &qla24xx_isp_ops;
1654         } else if (IS_QLA25XX(ha)) {
1655                 host->max_id = MAX_TARGETS_2200;
1656                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1657                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1658                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1659                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1660                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1661                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1662                 ha->gid_list_info_size = 8;
1663                 ha->optrom_size = OPTROM_SIZE_25XX;
1664                 ha->isp_ops = &qla25xx_isp_ops;
1665                 ha->hw_event_start = PCI_FUNC(pdev->devfn) ?
1666                     FA_HW_EVENT1_ADDR: FA_HW_EVENT0_ADDR;
1667         }
1668         host->can_queue = ha->request_q_length + 128;
1669
1670         mutex_init(&ha->vport_lock);
1671         init_completion(&ha->mbx_cmd_comp);
1672         complete(&ha->mbx_cmd_comp);
1673         init_completion(&ha->mbx_intr_comp);
1674
1675         INIT_LIST_HEAD(&ha->list);
1676         INIT_LIST_HEAD(&ha->fcports);
1677         INIT_LIST_HEAD(&ha->vp_list);
1678         INIT_LIST_HEAD(&ha->work_list);
1679
1680         set_bit(0, (unsigned long *) ha->vp_idx_map);
1681
1682         qla2x00_config_dma_addressing(ha);
1683         if (qla2x00_mem_alloc(ha)) {
1684                 qla_printk(KERN_WARNING, ha,
1685                     "[ERROR] Failed to allocate memory for adapter\n");
1686
1687                 ret = -ENOMEM;
1688                 goto probe_failed;
1689         }
1690
1691         if (qla2x00_initialize_adapter(ha)) {
1692                 qla_printk(KERN_WARNING, ha,
1693                     "Failed to initialize adapter\n");
1694
1695                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1696                     "Adapter flags %x.\n",
1697                     ha->host_no, ha->device_flags));
1698
1699                 ret = -ENODEV;
1700                 goto probe_failed;
1701         }
1702
1703         /*
1704          * Startup the kernel thread for this host adapter
1705          */
1706         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1707                         "%s_dpc", ha->host_str);
1708         if (IS_ERR(ha->dpc_thread)) {
1709                 qla_printk(KERN_WARNING, ha,
1710                     "Unable to start DPC thread!\n");
1711                 ret = PTR_ERR(ha->dpc_thread);
1712                 goto probe_failed;
1713         }
1714
1715         host->this_id = 255;
1716         host->cmd_per_lun = 3;
1717         host->unique_id = host->host_no;
1718         host->max_cmd_len = MAX_CMDSZ;
1719         host->max_channel = MAX_BUSES - 1;
1720         host->max_lun = MAX_LUNS;
1721         host->transportt = qla2xxx_transport_template;
1722
1723         ret = qla2x00_request_irqs(ha);
1724         if (ret)
1725                 goto probe_failed;
1726
1727         /* Initialized the timer */
1728         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1729
1730         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1731             ha->host_no, ha));
1732
1733         pci_set_drvdata(pdev, ha);
1734
1735         ha->flags.init_done = 1;
1736         ha->flags.online = 1;
1737
1738         ret = scsi_add_host(host, &pdev->dev);
1739         if (ret)
1740                 goto probe_failed;
1741
1742         scsi_scan_host(host);
1743
1744         qla2x00_alloc_sysfs_attr(ha);
1745
1746         qla2x00_init_host_attr(ha);
1747
1748         qla2x00_dfs_setup(ha);
1749
1750         qla_printk(KERN_INFO, ha, "\n"
1751             " QLogic Fibre Channel HBA Driver: %s\n"
1752             "  QLogic %s - %s\n"
1753             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1754             qla2x00_version_str, ha->model_number,
1755             ha->model_desc ? ha->model_desc: "", pdev->device,
1756             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1757             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1758             ha->isp_ops->fw_version_str(ha, fw_str));
1759
1760         return 0;
1761
1762 probe_failed:
1763         qla2x00_free_device(ha);
1764
1765         scsi_host_put(host);
1766
1767 probe_disable_device:
1768         pci_disable_device(pdev);
1769
1770 probe_out:
1771         return ret;
1772 }
1773
1774 static void
1775 qla2x00_remove_one(struct pci_dev *pdev)
1776 {
1777         scsi_qla_host_t *ha;
1778
1779         ha = pci_get_drvdata(pdev);
1780
1781         qla2x00_dfs_remove(ha);
1782
1783         qla84xx_put_chip(ha);
1784
1785         qla2x00_free_sysfs_attr(ha);
1786
1787         fc_remove_host(ha->host);
1788
1789         scsi_remove_host(ha->host);
1790
1791         qla2x00_free_device(ha);
1792
1793         scsi_host_put(ha->host);
1794
1795         pci_disable_device(pdev);
1796         pci_set_drvdata(pdev, NULL);
1797 }
1798
1799 static void
1800 qla2x00_free_device(scsi_qla_host_t *ha)
1801 {
1802         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1803
1804         /* Disable timer */
1805         if (ha->timer_active)
1806                 qla2x00_stop_timer(ha);
1807
1808         ha->flags.online = 0;
1809
1810         /* Kill the kernel thread for this host */
1811         if (ha->dpc_thread) {
1812                 struct task_struct *t = ha->dpc_thread;
1813
1814                 /*
1815                  * qla2xxx_wake_dpc checks for ->dpc_thread
1816                  * so we need to zero it out.
1817                  */
1818                 ha->dpc_thread = NULL;
1819                 kthread_stop(t);
1820         }
1821
1822         if (ha->flags.fce_enabled)
1823                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1824
1825         if (ha->eft)
1826                 qla2x00_disable_eft_trace(ha);
1827
1828         /* Stop currently executing firmware. */
1829         qla2x00_try_to_stop_firmware(ha);
1830
1831         /* turn-off interrupts on the card */
1832         if (ha->interrupts_on)
1833                 ha->isp_ops->disable_intrs(ha);
1834
1835         qla2x00_mem_free(ha);
1836
1837         qla2x00_free_irqs(ha);
1838
1839         /* release io space registers  */
1840         if (ha->iobase)
1841                 iounmap(ha->iobase);
1842         pci_release_selected_regions(ha->pdev, ha->bars);
1843 }
1844
1845 static inline void
1846 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1847     int defer)
1848 {
1849         struct fc_rport *rport;
1850         scsi_qla_host_t *pha = to_qla_parent(ha);
1851
1852         if (!fcport->rport)
1853                 return;
1854
1855         rport = fcport->rport;
1856         if (defer) {
1857                 spin_lock_irq(ha->host->host_lock);
1858                 fcport->drport = rport;
1859                 spin_unlock_irq(ha->host->host_lock);
1860                 set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags);
1861                 qla2xxx_wake_dpc(pha);
1862         } else
1863                 fc_remote_port_delete(rport);
1864 }
1865
1866 /*
1867  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1868  *
1869  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1870  *
1871  * Return: None.
1872  *
1873  * Context:
1874  */
1875 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1876     int do_login, int defer)
1877 {
1878         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1879             ha->vp_idx == fcport->vp_idx)
1880                 qla2x00_schedule_rport_del(ha, fcport, defer);
1881
1882         /*
1883          * We may need to retry the login, so don't change the state of the
1884          * port but do the retries.
1885          */
1886         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1887                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1888
1889         if (!do_login)
1890                 return;
1891
1892         if (fcport->login_retry == 0) {
1893                 fcport->login_retry = ha->login_retry_count;
1894                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1895
1896                 DEBUG(printk("scsi(%ld): Port login retry: "
1897                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1898                     "id = 0x%04x retry cnt=%d\n",
1899                     ha->host_no,
1900                     fcport->port_name[0],
1901                     fcport->port_name[1],
1902                     fcport->port_name[2],
1903                     fcport->port_name[3],
1904                     fcport->port_name[4],
1905                     fcport->port_name[5],
1906                     fcport->port_name[6],
1907                     fcport->port_name[7],
1908                     fcport->loop_id,
1909                     fcport->login_retry));
1910         }
1911 }
1912
1913 /*
1914  * qla2x00_mark_all_devices_lost
1915  *      Updates fcport state when device goes offline.
1916  *
1917  * Input:
1918  *      ha = adapter block pointer.
1919  *      fcport = port structure pointer.
1920  *
1921  * Return:
1922  *      None.
1923  *
1924  * Context:
1925  */
1926 void
1927 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1928 {
1929         fc_port_t *fcport;
1930         scsi_qla_host_t *pha = to_qla_parent(ha);
1931
1932         list_for_each_entry(fcport, &pha->fcports, list) {
1933                 if (ha->vp_idx != fcport->vp_idx)
1934                         continue;
1935                 /*
1936                  * No point in marking the device as lost, if the device is
1937                  * already DEAD.
1938                  */
1939                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1940                         continue;
1941                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1942                         qla2x00_schedule_rport_del(ha, fcport, defer);
1943                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1944         }
1945 }
1946
1947 /*
1948 * qla2x00_mem_alloc
1949 *      Allocates adapter memory.
1950 *
1951 * Returns:
1952 *      0  = success.
1953 *      !0  = failure.
1954 */
1955 static int
1956 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1957 {
1958         char    name[16];
1959
1960         ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1961             (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1962             GFP_KERNEL);
1963         if (!ha->request_ring)
1964                 goto fail;
1965
1966         ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1967             (ha->response_q_length + 1) * sizeof(response_t),
1968             &ha->response_dma, GFP_KERNEL);
1969         if (!ha->response_ring)
1970                 goto fail_free_request_ring;
1971
1972         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1973             &ha->gid_list_dma, GFP_KERNEL);
1974         if (!ha->gid_list)
1975                 goto fail_free_response_ring;
1976
1977         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1978             &ha->init_cb_dma, GFP_KERNEL);
1979         if (!ha->init_cb)
1980                 goto fail_free_gid_list;
1981
1982         snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1983             ha->host_no);
1984         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1985             DMA_POOL_SIZE, 8, 0);
1986         if (!ha->s_dma_pool)
1987                 goto fail_free_init_cb;
1988
1989         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1990         if (!ha->srb_mempool)
1991                 goto fail_free_s_dma_pool;
1992
1993         /* Get memory for cached NVRAM */
1994         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1995         if (!ha->nvram)
1996                 goto fail_free_srb_mempool;
1997
1998         /* Allocate memory for SNS commands */
1999         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2000                 /* Get consistent memory allocated for SNS commands */
2001                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2002                     sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2003                 if (!ha->sns_cmd)
2004                         goto fail_free_nvram;
2005         } else {
2006                 /* Get consistent memory allocated for MS IOCB */
2007                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2008                     &ha->ms_iocb_dma);
2009                 if (!ha->ms_iocb)
2010                         goto fail_free_nvram;
2011
2012                 /* Get consistent memory allocated for CT SNS commands */
2013                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2014                     sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2015                 if (!ha->ct_sns)
2016                         goto fail_free_ms_iocb;
2017         }
2018
2019         return 0;
2020
2021 fail_free_ms_iocb:
2022         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2023         ha->ms_iocb = NULL;
2024         ha->ms_iocb_dma = 0;
2025 fail_free_nvram:
2026         kfree(ha->nvram);
2027         ha->nvram = NULL;
2028 fail_free_srb_mempool:
2029         mempool_destroy(ha->srb_mempool);
2030         ha->srb_mempool = NULL;
2031 fail_free_s_dma_pool:
2032         dma_pool_destroy(ha->s_dma_pool);
2033         ha->s_dma_pool = NULL;
2034 fail_free_init_cb:
2035         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2036             ha->init_cb_dma);
2037         ha->init_cb = NULL;
2038         ha->init_cb_dma = 0;
2039 fail_free_gid_list:
2040         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2041             ha->gid_list_dma);
2042         ha->gid_list = NULL;
2043         ha->gid_list_dma = 0;
2044 fail_free_response_ring:
2045         dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2046             sizeof(response_t), ha->response_ring, ha->response_dma);
2047         ha->response_ring = NULL;
2048         ha->response_dma = 0;
2049 fail_free_request_ring:
2050         dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2051             sizeof(request_t), ha->request_ring, ha->request_dma);
2052         ha->request_ring = NULL;
2053         ha->request_dma = 0;
2054 fail:
2055         return -ENOMEM;
2056 }
2057
2058 /*
2059 * qla2x00_mem_free
2060 *      Frees all adapter allocated memory.
2061 *
2062 * Input:
2063 *      ha = adapter block pointer.
2064 */
2065 static void
2066 qla2x00_mem_free(scsi_qla_host_t *ha)
2067 {
2068         struct list_head        *fcpl, *fcptemp;
2069         fc_port_t       *fcport;
2070
2071         if (ha->srb_mempool)
2072                 mempool_destroy(ha->srb_mempool);
2073
2074         if (ha->fce)
2075                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2076                     ha->fce_dma);
2077
2078         if (ha->fw_dump) {
2079                 if (ha->eft)
2080                         dma_free_coherent(&ha->pdev->dev,
2081                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2082                 vfree(ha->fw_dump);
2083         }
2084
2085         if (ha->sns_cmd)
2086                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2087                     ha->sns_cmd, ha->sns_cmd_dma);
2088
2089         if (ha->ct_sns)
2090                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2091                     ha->ct_sns, ha->ct_sns_dma);
2092
2093         if (ha->sfp_data)
2094                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2095
2096         if (ha->ms_iocb)
2097                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2098
2099         if (ha->s_dma_pool)
2100                 dma_pool_destroy(ha->s_dma_pool);
2101
2102         if (ha->init_cb)
2103                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2104                     ha->init_cb, ha->init_cb_dma);
2105
2106         if (ha->gid_list)
2107                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2108                     ha->gid_list_dma);
2109
2110         if (ha->response_ring)
2111                 dma_free_coherent(&ha->pdev->dev,
2112                     (ha->response_q_length + 1) * sizeof(response_t),
2113                     ha->response_ring, ha->response_dma);
2114
2115         if (ha->request_ring)
2116                 dma_free_coherent(&ha->pdev->dev,
2117                     (ha->request_q_length + 1) * sizeof(request_t),
2118                     ha->request_ring, ha->request_dma);
2119
2120         ha->srb_mempool = NULL;
2121         ha->eft = NULL;
2122         ha->eft_dma = 0;
2123         ha->sns_cmd = NULL;
2124         ha->sns_cmd_dma = 0;
2125         ha->ct_sns = NULL;
2126         ha->ct_sns_dma = 0;
2127         ha->ms_iocb = NULL;
2128         ha->ms_iocb_dma = 0;
2129         ha->init_cb = NULL;
2130         ha->init_cb_dma = 0;
2131
2132         ha->s_dma_pool = NULL;
2133
2134         ha->gid_list = NULL;
2135         ha->gid_list_dma = 0;
2136
2137         ha->response_ring = NULL;
2138         ha->response_dma = 0;
2139         ha->request_ring = NULL;
2140         ha->request_dma = 0;
2141
2142         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2143                 fcport = list_entry(fcpl, fc_port_t, list);
2144
2145                 /* fc ports */
2146                 list_del_init(&fcport->list);
2147                 kfree(fcport);
2148         }
2149         INIT_LIST_HEAD(&ha->fcports);
2150
2151         ha->fw_dump = NULL;
2152         ha->fw_dumped = 0;
2153         ha->fw_dump_reading = 0;
2154
2155         vfree(ha->optrom_buffer);
2156         kfree(ha->nvram);
2157 }
2158
2159 static struct qla_work_evt *
2160 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2161     int locked)
2162 {
2163         struct qla_work_evt *e;
2164
2165         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2166             GFP_KERNEL);
2167         if (!e)
2168                 return NULL;
2169
2170         INIT_LIST_HEAD(&e->list);
2171         e->type = type;
2172         e->flags = QLA_EVT_FLAG_FREE;
2173         return e;
2174 }
2175
2176 static int
2177 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2178 {
2179         unsigned long uninitialized_var(flags);
2180         scsi_qla_host_t *pha = to_qla_parent(ha);
2181
2182         if (!locked)
2183                 spin_lock_irqsave(&pha->hardware_lock, flags);
2184         list_add_tail(&e->list, &ha->work_list);
2185         qla2xxx_wake_dpc(ha);
2186         if (!locked)
2187                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2188         return QLA_SUCCESS;
2189 }
2190
2191 int
2192 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2193     u32 data)
2194 {
2195         struct qla_work_evt *e;
2196
2197         e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2198         if (!e)
2199                 return QLA_FUNCTION_FAILED;
2200
2201         e->u.aen.code = code;
2202         e->u.aen.data = data;
2203         return qla2x00_post_work(ha, e, 1);
2204 }
2205
2206 int
2207 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2208     uint16_t d2, uint16_t d3)
2209 {
2210         struct qla_work_evt *e;
2211
2212         e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2213         if (!e)
2214                 return QLA_FUNCTION_FAILED;
2215
2216         e->u.hwe.code = code;
2217         e->u.hwe.d1 = d1;
2218         e->u.hwe.d2 = d2;
2219         e->u.hwe.d3 = d3;
2220         return qla2x00_post_work(ha, e, 1);
2221 }
2222
2223 static void
2224 qla2x00_do_work(struct scsi_qla_host *ha)
2225 {
2226         struct qla_work_evt *e;
2227         scsi_qla_host_t *pha = to_qla_parent(ha);
2228
2229         spin_lock_irq(&pha->hardware_lock);
2230         while (!list_empty(&ha->work_list)) {
2231                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2232                 list_del_init(&e->list);
2233                 spin_unlock_irq(&pha->hardware_lock);
2234
2235                 switch (e->type) {
2236                 case QLA_EVT_AEN:
2237                         fc_host_post_event(ha->host, fc_get_event_number(),
2238                             e->u.aen.code, e->u.aen.data);
2239                         break;
2240                 case QLA_EVT_HWE_LOG:
2241                         qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2242                             e->u.hwe.d2, e->u.hwe.d3);
2243                         break;
2244                 }
2245                 if (e->flags & QLA_EVT_FLAG_FREE)
2246                         kfree(e);
2247                 spin_lock_irq(&pha->hardware_lock);
2248         }
2249         spin_unlock_irq(&pha->hardware_lock);
2250 }
2251
2252 /**************************************************************************
2253 * qla2x00_do_dpc
2254 *   This kernel thread is a task that is schedule by the interrupt handler
2255 *   to perform the background processing for interrupts.
2256 *
2257 * Notes:
2258 * This task always run in the context of a kernel thread.  It
2259 * is kick-off by the driver's detect code and starts up
2260 * up one per adapter. It immediately goes to sleep and waits for
2261 * some fibre event.  When either the interrupt handler or
2262 * the timer routine detects a event it will one of the task
2263 * bits then wake us up.
2264 **************************************************************************/
2265 static int
2266 qla2x00_do_dpc(void *data)
2267 {
2268         int             rval;
2269         scsi_qla_host_t *ha;
2270         fc_port_t       *fcport;
2271         uint8_t         status;
2272         uint16_t        next_loopid;
2273         struct scsi_qla_host *vha;
2274         int             i;
2275
2276
2277         ha = (scsi_qla_host_t *)data;
2278
2279         set_user_nice(current, -20);
2280
2281         while (!kthread_should_stop()) {
2282                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2283
2284                 set_current_state(TASK_INTERRUPTIBLE);
2285                 schedule();
2286                 __set_current_state(TASK_RUNNING);
2287
2288                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2289
2290                 /* Initialization not yet finished. Don't do anything yet. */
2291                 if (!ha->flags.init_done)
2292                         continue;
2293
2294                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2295
2296                 ha->dpc_active = 1;
2297
2298                 if (ha->flags.mbox_busy) {
2299                         ha->dpc_active = 0;
2300                         continue;
2301                 }
2302
2303                 qla2x00_do_work(ha);
2304
2305                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2306
2307                         DEBUG(printk("scsi(%ld): dpc: sched "
2308                             "qla2x00_abort_isp ha = %p\n",
2309                             ha->host_no, ha));
2310                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2311                             &ha->dpc_flags))) {
2312
2313                                 if (qla2x00_abort_isp(ha)) {
2314                                         /* failed. retry later */
2315                                         set_bit(ISP_ABORT_NEEDED,
2316                                             &ha->dpc_flags);
2317                                 }
2318                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2319                         }
2320
2321                         for_each_mapped_vp_idx(ha, i) {
2322                                 list_for_each_entry(vha, &ha->vp_list,
2323                                     vp_list) {
2324                                         if (i == vha->vp_idx) {
2325                                                 set_bit(ISP_ABORT_NEEDED,
2326                                                     &vha->dpc_flags);
2327                                                 break;
2328                                         }
2329                                 }
2330                         }
2331
2332                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2333                             ha->host_no));
2334                 }
2335
2336                 if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) {
2337                         qla2x00_update_fcports(ha);
2338                         clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
2339                 }
2340
2341                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2342                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2343
2344                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2345                             ha->host_no));
2346
2347                         qla2x00_rst_aen(ha);
2348                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2349                 }
2350
2351                 /* Retry each device up to login retry count */
2352                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2353                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2354                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2355
2356                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2357                             ha->host_no));
2358
2359                         next_loopid = 0;
2360                         list_for_each_entry(fcport, &ha->fcports, list) {
2361                                 /*
2362                                  * If the port is not ONLINE then try to login
2363                                  * to it if we haven't run out of retries.
2364                                  */
2365                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2366                                     fcport->login_retry) {
2367
2368                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2369                                                 if (fcport->flags &
2370                                                     FCF_TAPE_PRESENT)
2371                                                         ha->isp_ops->fabric_logout(
2372                                                             ha, fcport->loop_id,
2373                                                             fcport->d_id.b.domain,
2374                                                             fcport->d_id.b.area,
2375                                                             fcport->d_id.b.al_pa);
2376                                                 status = qla2x00_fabric_login(
2377                                                     ha, fcport, &next_loopid);
2378                                         } else
2379                                                 status =
2380                                                     qla2x00_local_device_login(
2381                                                         ha, fcport);
2382
2383                                         fcport->login_retry--;
2384                                         if (status == QLA_SUCCESS) {
2385                                                 fcport->old_loop_id = fcport->loop_id;
2386
2387                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2388                                                     ha->host_no, fcport->loop_id));
2389
2390                                                 qla2x00_update_fcport(ha,
2391                                                     fcport);
2392                                         } else if (status == 1) {
2393                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2394                                                 /* retry the login again */
2395                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2396                                                     ha->host_no,
2397                                                     fcport->login_retry, fcport->loop_id));
2398                                         } else {
2399                                                 fcport->login_retry = 0;
2400                                         }
2401                                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2402                                                 fcport->loop_id = FC_NO_LOOP_ID;
2403                                 }
2404                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2405                                         break;
2406                         }
2407                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2408                             ha->host_no));
2409                 }
2410
2411                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2412
2413                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2414                             ha->host_no));
2415
2416                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2417                             &ha->dpc_flags))) {
2418
2419                                 rval = qla2x00_loop_resync(ha);
2420
2421                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2422                         }
2423
2424                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2425                             ha->host_no));
2426                 }
2427
2428                 if (!ha->interrupts_on)
2429                         ha->isp_ops->enable_intrs(ha);
2430
2431                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2432                         ha->isp_ops->beacon_blink(ha);
2433
2434                 qla2x00_do_dpc_all_vps(ha);
2435
2436                 ha->dpc_active = 0;
2437         } /* End of while(1) */
2438
2439         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2440
2441         /*
2442          * Make sure that nobody tries to wake us up again.
2443          */
2444         ha->dpc_active = 0;
2445
2446         return 0;
2447 }
2448
2449 void
2450 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2451 {
2452         if (ha->dpc_thread)
2453                 wake_up_process(ha->dpc_thread);
2454 }
2455
2456 /*
2457 *  qla2x00_rst_aen
2458 *      Processes asynchronous reset.
2459 *
2460 * Input:
2461 *      ha  = adapter block pointer.
2462 */
2463 static void
2464 qla2x00_rst_aen(scsi_qla_host_t *ha)
2465 {
2466         if (ha->flags.online && !ha->flags.reset_active &&
2467             !atomic_read(&ha->loop_down_timer) &&
2468             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2469                 do {
2470                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2471
2472                         /*
2473                          * Issue marker command only when we are going to start
2474                          * the I/O.
2475                          */
2476                         ha->marker_needed = 1;
2477                 } while (!atomic_read(&ha->loop_down_timer) &&
2478                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2479         }
2480 }
2481
2482 static void
2483 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2484 {
2485         struct scsi_cmnd *cmd = sp->cmd;
2486
2487         if (sp->flags & SRB_DMA_VALID) {
2488                 scsi_dma_unmap(cmd);
2489                 sp->flags &= ~SRB_DMA_VALID;
2490         }
2491         CMD_SP(cmd) = NULL;
2492 }
2493
2494 void
2495 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2496 {
2497         struct scsi_cmnd *cmd = sp->cmd;
2498
2499         qla2x00_sp_free_dma(ha, sp);
2500
2501         mempool_free(sp, ha->srb_mempool);
2502
2503         cmd->scsi_done(cmd);
2504 }
2505
2506 /**************************************************************************
2507 *   qla2x00_timer
2508 *
2509 * Description:
2510 *   One second timer
2511 *
2512 * Context: Interrupt
2513 ***************************************************************************/
2514 void
2515 qla2x00_timer(scsi_qla_host_t *ha)
2516 {
2517         unsigned long   cpu_flags = 0;
2518         fc_port_t       *fcport;
2519         int             start_dpc = 0;
2520         int             index;
2521         srb_t           *sp;
2522         int             t;
2523         scsi_qla_host_t *pha = to_qla_parent(ha);
2524
2525         /*
2526          * Ports - Port down timer.
2527          *
2528          * Whenever, a port is in the LOST state we start decrementing its port
2529          * down timer every second until it reaches zero. Once  it reaches zero
2530          * the port it marked DEAD.
2531          */
2532         t = 0;
2533         list_for_each_entry(fcport, &ha->fcports, list) {
2534                 if (fcport->port_type != FCT_TARGET)
2535                         continue;
2536
2537                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2538
2539                         if (atomic_read(&fcport->port_down_timer) == 0)
2540                                 continue;
2541
2542                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2543                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2544
2545                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2546                             "%d remaining\n",
2547                             ha->host_no,
2548                             t, atomic_read(&fcport->port_down_timer)));
2549                 }
2550                 t++;
2551         } /* End of for fcport  */
2552
2553
2554         /* Loop down handler. */
2555         if (atomic_read(&ha->loop_down_timer) > 0 &&
2556             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2557
2558                 if (atomic_read(&ha->loop_down_timer) ==
2559                     ha->loop_down_abort_time) {
2560
2561                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2562                             "queues before time expire\n",
2563                             ha->host_no));
2564
2565                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2566                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2567
2568                         /* Schedule an ISP abort to return any tape commands. */
2569                         /* NPIV - scan physical port only */
2570                         if (!ha->parent) {
2571                                 spin_lock_irqsave(&ha->hardware_lock,
2572                                     cpu_flags);
2573                                 for (index = 1;
2574                                     index < MAX_OUTSTANDING_COMMANDS;
2575                                     index++) {
2576                                         fc_port_t *sfcp;
2577
2578                                         sp = ha->outstanding_cmds[index];
2579                                         if (!sp)
2580                                                 continue;
2581                                         sfcp = sp->fcport;
2582                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2583                                                 continue;
2584
2585                                         set_bit(ISP_ABORT_NEEDED,
2586                                             &ha->dpc_flags);
2587                                         break;
2588                                 }
2589                                 spin_unlock_irqrestore(&ha->hardware_lock,
2590                                     cpu_flags);
2591                         }
2592                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2593                         start_dpc++;
2594                 }
2595
2596                 /* if the loop has been down for 4 minutes, reinit adapter */
2597                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2598                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2599                             "restarting queues.\n",
2600                             ha->host_no));
2601
2602                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2603                         start_dpc++;
2604
2605                         if (!(ha->device_flags & DFLG_NO_CABLE) &&
2606                             !ha->parent) {
2607                                 DEBUG(printk("scsi(%ld): Loop down - "
2608                                     "aborting ISP.\n",
2609                                     ha->host_no));
2610                                 qla_printk(KERN_WARNING, ha,
2611                                     "Loop down - aborting ISP.\n");
2612
2613                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2614                         }
2615                 }
2616                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2617                     ha->host_no,
2618                     atomic_read(&ha->loop_down_timer)));
2619         }
2620
2621         /* Check if beacon LED needs to be blinked */
2622         if (ha->beacon_blink_led == 1) {
2623                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2624                 start_dpc++;
2625         }
2626
2627         /* Process any deferred work. */
2628         if (!list_empty(&ha->work_list))
2629                 start_dpc++;
2630
2631         /* Schedule the DPC routine if needed */
2632         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2633             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2634             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2635             start_dpc ||
2636             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2637             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2638             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2639             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2640                 qla2xxx_wake_dpc(pha);
2641
2642         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2643 }
2644
2645 /* Firmware interface routines. */
2646
2647 #define FW_BLOBS        6
2648 #define FW_ISP21XX      0
2649 #define FW_ISP22XX      1
2650 #define FW_ISP2300      2
2651 #define FW_ISP2322      3
2652 #define FW_ISP24XX      4
2653 #define FW_ISP25XX      5
2654
2655 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2656 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2657 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2658 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2659 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2660 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2661
2662 static DEFINE_MUTEX(qla_fw_lock);
2663
2664 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2665         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2666         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2667         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2668         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2669         { .name = FW_FILE_ISP24XX, },
2670         { .name = FW_FILE_ISP25XX, },
2671 };
2672
2673 struct fw_blob *
2674 qla2x00_request_firmware(scsi_qla_host_t *ha)
2675 {
2676         struct fw_blob *blob;
2677
2678         blob = NULL;
2679         if (IS_QLA2100(ha)) {
2680                 blob = &qla_fw_blobs[FW_ISP21XX];
2681         } else if (IS_QLA2200(ha)) {
2682                 blob = &qla_fw_blobs[FW_ISP22XX];
2683         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2684                 blob = &qla_fw_blobs[FW_ISP2300];
2685         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2686                 blob = &qla_fw_blobs[FW_ISP2322];
2687         } else if (IS_QLA24XX_TYPE(ha)) {
2688                 blob = &qla_fw_blobs[FW_ISP24XX];
2689         } else if (IS_QLA25XX(ha)) {
2690                 blob = &qla_fw_blobs[FW_ISP25XX];
2691         }
2692
2693         mutex_lock(&qla_fw_lock);
2694         if (blob->fw)
2695                 goto out;
2696
2697         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2698                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2699                     "(%s).\n", ha->host_no, blob->name));
2700                 blob->fw = NULL;
2701                 blob = NULL;
2702                 goto out;
2703         }
2704
2705 out:
2706         mutex_unlock(&qla_fw_lock);
2707         return blob;
2708 }
2709
2710 static void
2711 qla2x00_release_firmware(void)
2712 {
2713         int idx;
2714
2715         mutex_lock(&qla_fw_lock);
2716         for (idx = 0; idx < FW_BLOBS; idx++)
2717                 if (qla_fw_blobs[idx].fw)
2718                         release_firmware(qla_fw_blobs[idx].fw);
2719         mutex_unlock(&qla_fw_lock);
2720 }
2721
2722 static pci_ers_result_t
2723 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2724 {
2725         switch (state) {
2726         case pci_channel_io_normal:
2727                 return PCI_ERS_RESULT_CAN_RECOVER;
2728         case pci_channel_io_frozen:
2729                 pci_disable_device(pdev);
2730                 return PCI_ERS_RESULT_NEED_RESET;
2731         case pci_channel_io_perm_failure:
2732                 qla2x00_remove_one(pdev);
2733                 return PCI_ERS_RESULT_DISCONNECT;
2734         }
2735         return PCI_ERS_RESULT_NEED_RESET;
2736 }
2737
2738 static pci_ers_result_t
2739 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2740 {
2741         int risc_paused = 0;
2742         uint32_t stat;
2743         unsigned long flags;
2744         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2745         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2746         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2747
2748         spin_lock_irqsave(&ha->hardware_lock, flags);
2749         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2750                 stat = RD_REG_DWORD(&reg->hccr);
2751                 if (stat & HCCR_RISC_PAUSE)
2752                         risc_paused = 1;
2753         } else if (IS_QLA23XX(ha)) {
2754                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2755                 if (stat & HSR_RISC_PAUSED)
2756                         risc_paused = 1;
2757         } else if (IS_FWI2_CAPABLE(ha)) {
2758                 stat = RD_REG_DWORD(&reg24->host_status);
2759                 if (stat & HSRX_RISC_PAUSED)
2760                         risc_paused = 1;
2761         }
2762         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2763
2764         if (risc_paused) {
2765                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2766                     "Dumping firmware!\n");
2767                 ha->isp_ops->fw_dump(ha, 0);
2768
2769                 return PCI_ERS_RESULT_NEED_RESET;
2770         } else
2771                 return PCI_ERS_RESULT_RECOVERED;
2772 }
2773
2774 static pci_ers_result_t
2775 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2776 {
2777         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2778         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2779         int rc;
2780
2781         if (ha->mem_only)
2782                 rc = pci_enable_device_mem(pdev);
2783         else
2784                 rc = pci_enable_device(pdev);
2785
2786         if (rc) {
2787                 qla_printk(KERN_WARNING, ha,
2788                     "Can't re-enable PCI device after reset.\n");
2789
2790                 return ret;
2791         }
2792         pci_set_master(pdev);
2793
2794         if (ha->isp_ops->pci_config(ha))
2795                 return ret;
2796
2797         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2798         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2799                 ret =  PCI_ERS_RESULT_RECOVERED;
2800         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2801
2802         return ret;
2803 }
2804
2805 static void
2806 qla2xxx_pci_resume(struct pci_dev *pdev)
2807 {
2808         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2809         int ret;
2810
2811         ret = qla2x00_wait_for_hba_online(ha);
2812         if (ret != QLA_SUCCESS) {
2813                 qla_printk(KERN_ERR, ha,
2814                     "the device failed to resume I/O "
2815                     "from slot/link_reset");
2816         }
2817         pci_cleanup_aer_uncorrect_error_status(pdev);
2818 }
2819
2820 static struct pci_error_handlers qla2xxx_err_handler = {
2821         .error_detected = qla2xxx_pci_error_detected,
2822         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2823         .slot_reset = qla2xxx_pci_slot_reset,
2824         .resume = qla2xxx_pci_resume,
2825 };
2826
2827 static struct pci_device_id qla2xxx_pci_tbl[] = {
2828         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2829         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2830         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2831         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2832         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2833         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2834         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2835         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2836         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2837         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2838         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2839         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2840         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2841         { 0 },
2842 };
2843 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2844
2845 static struct pci_driver qla2xxx_pci_driver = {
2846         .name           = QLA2XXX_DRIVER_NAME,
2847         .driver         = {
2848                 .owner          = THIS_MODULE,
2849         },
2850         .id_table       = qla2xxx_pci_tbl,
2851         .probe          = qla2x00_probe_one,
2852         .remove         = qla2x00_remove_one,
2853         .err_handler    = &qla2xxx_err_handler,
2854 };
2855
2856 /**
2857  * qla2x00_module_init - Module initialization.
2858  **/
2859 static int __init
2860 qla2x00_module_init(void)
2861 {
2862         int ret = 0;
2863
2864         /* Allocate cache for SRBs. */
2865         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2866             SLAB_HWCACHE_ALIGN, NULL);
2867         if (srb_cachep == NULL) {
2868                 printk(KERN_ERR
2869                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2870                 return -ENOMEM;
2871         }
2872
2873         /* Derive version string. */
2874         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2875         if (ql2xextended_error_logging)
2876                 strcat(qla2x00_version_str, "-debug");
2877
2878         qla2xxx_transport_template =
2879             fc_attach_transport(&qla2xxx_transport_functions);
2880         if (!qla2xxx_transport_template) {
2881                 kmem_cache_destroy(srb_cachep);
2882                 return -ENODEV;
2883         }
2884         qla2xxx_transport_vport_template =
2885             fc_attach_transport(&qla2xxx_transport_vport_functions);
2886         if (!qla2xxx_transport_vport_template) {
2887                 kmem_cache_destroy(srb_cachep);
2888                 fc_release_transport(qla2xxx_transport_template);
2889                 return -ENODEV;
2890         }
2891
2892         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2893             qla2x00_version_str);
2894         ret = pci_register_driver(&qla2xxx_pci_driver);
2895         if (ret) {
2896                 kmem_cache_destroy(srb_cachep);
2897                 fc_release_transport(qla2xxx_transport_template);
2898                 fc_release_transport(qla2xxx_transport_vport_template);
2899         }
2900         return ret;
2901 }
2902
2903 /**
2904  * qla2x00_module_exit - Module cleanup.
2905  **/
2906 static void __exit
2907 qla2x00_module_exit(void)
2908 {
2909         pci_unregister_driver(&qla2xxx_pci_driver);
2910         qla2x00_release_firmware();
2911         kmem_cache_destroy(srb_cachep);
2912         fc_release_transport(qla2xxx_transport_template);
2913         fc_release_transport(qla2xxx_transport_vport_template);
2914 }
2915
2916 module_init(qla2x00_module_init);
2917 module_exit(qla2x00_module_exit);
2918
2919 MODULE_AUTHOR("QLogic Corporation");
2920 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2921 MODULE_LICENSE("GPL");
2922 MODULE_VERSION(QLA2XXX_VERSION);
2923 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2924 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2925 MODULE_FIRMWARE(FW_FILE_ISP2300);
2926 MODULE_FIRMWARE(FW_FILE_ISP2322);
2927 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2928 MODULE_FIRMWARE(FW_FILE_ISP25XX);