PCI: use pci_find_ext_capability everywhere
[linux-2.6.git] / drivers / scsi / qla2xxx / qla_os.c
1 /*
2  * QLogic Fibre Channel HBA Driver
3  * Copyright (c)  2003-2008 QLogic Corporation
4  *
5  * See LICENSE.qla2xxx for copyright and licensing details.
6  */
7 #include "qla_def.h"
8
9 #include <linux/moduleparam.h>
10 #include <linux/vmalloc.h>
11 #include <linux/delay.h>
12 #include <linux/kthread.h>
13 #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                 goto qc_target_busy;
399
400         if (atomic_read(&fcport->state) != FCS_ONLINE) {
401                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
402                     atomic_read(&ha->loop_state) == LOOP_DEAD) {
403                         cmd->result = DID_NO_CONNECT << 16;
404                         goto qc_fail_command;
405                 }
406                 goto qc_target_busy;
407         }
408
409         spin_unlock_irq(ha->host->host_lock);
410
411         sp = qla2x00_get_new_sp(ha, fcport, cmd, done);
412         if (!sp)
413                 goto qc_host_busy_lock;
414
415         rval = qla2x00_start_scsi(sp);
416         if (rval != QLA_SUCCESS)
417                 goto qc_host_busy_free_sp;
418
419         spin_lock_irq(ha->host->host_lock);
420
421         return 0;
422
423 qc_host_busy_free_sp:
424         qla2x00_sp_free_dma(ha, sp);
425         mempool_free(sp, ha->srb_mempool);
426
427 qc_host_busy_lock:
428         spin_lock_irq(ha->host->host_lock);
429         return SCSI_MLQUEUE_HOST_BUSY;
430
431 qc_target_busy:
432         return SCSI_MLQUEUE_TARGET_BUSY;
433
434 qc_fail_command:
435         done(cmd);
436
437         return 0;
438 }
439
440
441 static int
442 qla24xx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
443 {
444         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
445         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
446         struct fc_rport *rport = starget_to_rport(scsi_target(cmd->device));
447         srb_t *sp;
448         int rval;
449         scsi_qla_host_t *pha = to_qla_parent(ha);
450
451         if (unlikely(pci_channel_offline(pha->pdev))) {
452                 cmd->result = DID_REQUEUE << 16;
453                 goto qc24_fail_command;
454         }
455
456         rval = fc_remote_port_chkready(rport);
457         if (rval) {
458                 cmd->result = rval;
459                 goto qc24_fail_command;
460         }
461
462         /* Close window on fcport/rport state-transitioning. */
463         if (fcport->drport)
464                 goto qc24_target_busy;
465
466         if (atomic_read(&fcport->state) != FCS_ONLINE) {
467                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
468                     atomic_read(&pha->loop_state) == LOOP_DEAD) {
469                         cmd->result = DID_NO_CONNECT << 16;
470                         goto qc24_fail_command;
471                 }
472                 goto qc24_target_busy;
473         }
474
475         spin_unlock_irq(ha->host->host_lock);
476
477         sp = qla2x00_get_new_sp(pha, fcport, cmd, done);
478         if (!sp)
479                 goto qc24_host_busy_lock;
480
481         rval = qla24xx_start_scsi(sp);
482         if (rval != QLA_SUCCESS)
483                 goto qc24_host_busy_free_sp;
484
485         spin_lock_irq(ha->host->host_lock);
486
487         return 0;
488
489 qc24_host_busy_free_sp:
490         qla2x00_sp_free_dma(pha, sp);
491         mempool_free(sp, pha->srb_mempool);
492
493 qc24_host_busy_lock:
494         spin_lock_irq(ha->host->host_lock);
495         return SCSI_MLQUEUE_HOST_BUSY;
496
497 qc24_target_busy:
498         return SCSI_MLQUEUE_TARGET_BUSY;
499
500 qc24_fail_command:
501         done(cmd);
502
503         return 0;
504 }
505
506
507 /*
508  * qla2x00_eh_wait_on_command
509  *    Waits for the command to be returned by the Firmware for some
510  *    max time.
511  *
512  * Input:
513  *    ha = actual ha whose done queue will contain the command
514  *            returned by firmware.
515  *    cmd = Scsi Command to wait on.
516  *    flag = Abort/Reset(Bus or Device Reset)
517  *
518  * Return:
519  *    Not Found : 0
520  *    Found : 1
521  */
522 static int
523 qla2x00_eh_wait_on_command(scsi_qla_host_t *ha, struct scsi_cmnd *cmd)
524 {
525 #define ABORT_POLLING_PERIOD    1000
526 #define ABORT_WAIT_ITER         ((10 * 1000) / (ABORT_POLLING_PERIOD))
527         unsigned long wait_iter = ABORT_WAIT_ITER;
528         int ret = QLA_SUCCESS;
529
530         while (CMD_SP(cmd)) {
531                 msleep(ABORT_POLLING_PERIOD);
532
533                 if (--wait_iter)
534                         break;
535         }
536         if (CMD_SP(cmd))
537                 ret = QLA_FUNCTION_FAILED;
538
539         return ret;
540 }
541
542 /*
543  * qla2x00_wait_for_hba_online
544  *    Wait till the HBA is online after going through
545  *    <= MAX_RETRIES_OF_ISP_ABORT  or
546  *    finally HBA is disabled ie marked offline
547  *
548  * Input:
549  *     ha - pointer to host adapter structure
550  *
551  * Note:
552  *    Does context switching-Release SPIN_LOCK
553  *    (if any) before calling this routine.
554  *
555  * Return:
556  *    Success (Adapter is online) : 0
557  *    Failed  (Adapter is offline/disabled) : 1
558  */
559 int
560 qla2x00_wait_for_hba_online(scsi_qla_host_t *ha)
561 {
562         int             return_status;
563         unsigned long   wait_online;
564         scsi_qla_host_t *pha = to_qla_parent(ha);
565
566         wait_online = jiffies + (MAX_LOOP_TIMEOUT * HZ);
567         while (((test_bit(ISP_ABORT_NEEDED, &pha->dpc_flags)) ||
568             test_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags) ||
569             test_bit(ISP_ABORT_RETRY, &pha->dpc_flags) ||
570             pha->dpc_active) && time_before(jiffies, wait_online)) {
571
572                 msleep(1000);
573         }
574         if (pha->flags.online)
575                 return_status = QLA_SUCCESS;
576         else
577                 return_status = QLA_FUNCTION_FAILED;
578
579         return (return_status);
580 }
581
582 /*
583  * qla2x00_wait_for_loop_ready
584  *    Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
585  *    to be in LOOP_READY state.
586  * Input:
587  *     ha - pointer to host adapter structure
588  *
589  * Note:
590  *    Does context switching-Release SPIN_LOCK
591  *    (if any) before calling this routine.
592  *
593  *
594  * Return:
595  *    Success (LOOP_READY) : 0
596  *    Failed  (LOOP_NOT_READY) : 1
597  */
598 static inline int
599 qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
600 {
601         int      return_status = QLA_SUCCESS;
602         unsigned long loop_timeout ;
603         scsi_qla_host_t *pha = to_qla_parent(ha);
604
605         /* wait for 5 min at the max for loop to be ready */
606         loop_timeout = jiffies + (MAX_LOOP_TIMEOUT * HZ);
607
608         while ((!atomic_read(&pha->loop_down_timer) &&
609             atomic_read(&pha->loop_state) == LOOP_DOWN) ||
610             atomic_read(&pha->loop_state) != LOOP_READY) {
611                 if (atomic_read(&pha->loop_state) == LOOP_DEAD) {
612                         return_status = QLA_FUNCTION_FAILED;
613                         break;
614                 }
615                 msleep(1000);
616                 if (time_after_eq(jiffies, loop_timeout)) {
617                         return_status = QLA_FUNCTION_FAILED;
618                         break;
619                 }
620         }
621         return (return_status);
622 }
623
624 void
625 qla2x00_abort_fcport_cmds(fc_port_t *fcport)
626 {
627         int cnt;
628         unsigned long flags;
629         srb_t *sp;
630         scsi_qla_host_t *ha = fcport->ha;
631         scsi_qla_host_t *pha = to_qla_parent(ha);
632
633         spin_lock_irqsave(&pha->hardware_lock, flags);
634         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
635                 sp = pha->outstanding_cmds[cnt];
636                 if (!sp)
637                         continue;
638                 if (sp->fcport != fcport)
639                         continue;
640
641                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
642                 if (ha->isp_ops->abort_command(ha, sp)) {
643                         DEBUG2(qla_printk(KERN_WARNING, ha,
644                             "Abort failed --  %lx\n", sp->cmd->serial_number));
645                 } else {
646                         if (qla2x00_eh_wait_on_command(ha, sp->cmd) !=
647                             QLA_SUCCESS)
648                                 DEBUG2(qla_printk(KERN_WARNING, ha,
649                                     "Abort failed while waiting --  %lx\n",
650                                     sp->cmd->serial_number));
651
652                 }
653                 spin_lock_irqsave(&pha->hardware_lock, flags);
654         }
655         spin_unlock_irqrestore(&pha->hardware_lock, flags);
656 }
657
658 static void
659 qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
660 {
661         struct Scsi_Host *shost = cmnd->device->host;
662         struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
663         unsigned long flags;
664
665         spin_lock_irqsave(shost->host_lock, flags);
666         while (rport->port_state == FC_PORTSTATE_BLOCKED) {
667                 spin_unlock_irqrestore(shost->host_lock, flags);
668                 msleep(1000);
669                 spin_lock_irqsave(shost->host_lock, flags);
670         }
671         spin_unlock_irqrestore(shost->host_lock, flags);
672         return;
673 }
674
675 /**************************************************************************
676 * qla2xxx_eh_abort
677 *
678 * Description:
679 *    The abort function will abort the specified command.
680 *
681 * Input:
682 *    cmd = Linux SCSI command packet to be aborted.
683 *
684 * Returns:
685 *    Either SUCCESS or FAILED.
686 *
687 * Note:
688 *    Only return FAILED if command not returned by firmware.
689 **************************************************************************/
690 static int
691 qla2xxx_eh_abort(struct scsi_cmnd *cmd)
692 {
693         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
694         srb_t *sp;
695         int ret, i;
696         unsigned int id, lun;
697         unsigned long serial;
698         unsigned long flags;
699         int wait = 0;
700         scsi_qla_host_t *pha = to_qla_parent(ha);
701
702         qla2x00_block_error_handler(cmd);
703
704         if (!CMD_SP(cmd))
705                 return SUCCESS;
706
707         ret = SUCCESS;
708
709         id = cmd->device->id;
710         lun = cmd->device->lun;
711         serial = cmd->serial_number;
712
713         /* Check active list for command command. */
714         spin_lock_irqsave(&pha->hardware_lock, flags);
715         for (i = 1; i < MAX_OUTSTANDING_COMMANDS; i++) {
716                 sp = pha->outstanding_cmds[i];
717
718                 if (sp == NULL)
719                         continue;
720
721                 if (sp->cmd != cmd)
722                         continue;
723
724                 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld.\n",
725                     __func__, ha->host_no, sp, serial));
726
727                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
728                 if (ha->isp_ops->abort_command(ha, sp)) {
729                         DEBUG2(printk("%s(%ld): abort_command "
730                             "mbx failed.\n", __func__, ha->host_no));
731                 } else {
732                         DEBUG3(printk("%s(%ld): abort_command "
733                             "mbx success.\n", __func__, ha->host_no));
734                         wait = 1;
735                 }
736                 spin_lock_irqsave(&pha->hardware_lock, flags);
737
738                 break;
739         }
740         spin_unlock_irqrestore(&pha->hardware_lock, flags);
741
742         /* Wait for the command to be returned. */
743         if (wait) {
744                 if (qla2x00_eh_wait_on_command(ha, cmd) != QLA_SUCCESS) {
745                         qla_printk(KERN_ERR, ha,
746                             "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
747                             "%x.\n", ha->host_no, id, lun, serial, ret);
748                         ret = FAILED;
749                 }
750         }
751
752         qla_printk(KERN_INFO, ha,
753             "scsi(%ld:%d:%d): Abort command issued -- %d %lx %x.\n",
754             ha->host_no, id, lun, wait, serial, ret);
755
756         return ret;
757 }
758
759 enum nexus_wait_type {
760         WAIT_HOST = 0,
761         WAIT_TARGET,
762         WAIT_LUN,
763 };
764
765 static int
766 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *ha, unsigned int t,
767     unsigned int l, enum nexus_wait_type type)
768 {
769         int cnt, match, status;
770         srb_t *sp;
771         unsigned long flags;
772         scsi_qla_host_t *pha = to_qla_parent(ha);
773
774         status = QLA_SUCCESS;
775         spin_lock_irqsave(&pha->hardware_lock, flags);
776         for (cnt = 1; status == QLA_SUCCESS && cnt < MAX_OUTSTANDING_COMMANDS;
777             cnt++) {
778                 sp = pha->outstanding_cmds[cnt];
779                 if (!sp)
780                         continue;
781
782                 if (ha->vp_idx != sp->fcport->ha->vp_idx)
783                         continue;
784                 match = 0;
785                 switch (type) {
786                 case WAIT_HOST:
787                         match = 1;
788                         break;
789                 case WAIT_TARGET:
790                         match = sp->cmd->device->id == t;
791                         break;
792                 case WAIT_LUN:
793                         match = (sp->cmd->device->id == t &&
794                             sp->cmd->device->lun == l);
795                         break;
796                 }
797                 if (!match)
798                         continue;
799
800                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
801                 status = qla2x00_eh_wait_on_command(ha, sp->cmd);
802                 spin_lock_irqsave(&pha->hardware_lock, flags);
803         }
804         spin_unlock_irqrestore(&pha->hardware_lock, flags);
805
806         return status;
807 }
808
809 static char *reset_errors[] = {
810         "HBA not online",
811         "HBA not ready",
812         "Task management failed",
813         "Waiting for command completions",
814 };
815
816 static int
817 __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
818     struct scsi_cmnd *cmd, int (*do_reset)(struct fc_port *, unsigned int))
819 {
820         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
821         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
822         int err;
823
824         qla2x00_block_error_handler(cmd);
825
826         if (!fcport)
827                 return FAILED;
828
829         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET ISSUED.\n",
830             ha->host_no, cmd->device->id, cmd->device->lun, name);
831
832         err = 0;
833         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
834                 goto eh_reset_failed;
835         err = 1;
836         if (qla2x00_wait_for_loop_ready(ha) != QLA_SUCCESS)
837                 goto eh_reset_failed;
838         err = 2;
839         if (do_reset(fcport, cmd->device->lun) != QLA_SUCCESS)
840                 goto eh_reset_failed;
841         err = 3;
842         if (qla2x00_eh_wait_for_pending_commands(ha, cmd->device->id,
843             cmd->device->lun, type) != QLA_SUCCESS)
844                 goto eh_reset_failed;
845
846         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET SUCCEEDED.\n",
847             ha->host_no, cmd->device->id, cmd->device->lun, name);
848
849         return SUCCESS;
850
851  eh_reset_failed:
852         qla_printk(KERN_INFO, ha, "scsi(%ld:%d:%d): %s RESET FAILED: %s.\n",
853             ha->host_no, cmd->device->id, cmd->device->lun, name,
854             reset_errors[err]);
855         return FAILED;
856 }
857
858 static int
859 qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
860 {
861         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
862
863         return __qla2xxx_eh_generic_reset("DEVICE", WAIT_LUN, cmd,
864             ha->isp_ops->lun_reset);
865 }
866
867 static int
868 qla2xxx_eh_target_reset(struct scsi_cmnd *cmd)
869 {
870         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
871
872         return __qla2xxx_eh_generic_reset("TARGET", WAIT_TARGET, cmd,
873             ha->isp_ops->target_reset);
874 }
875
876 /**************************************************************************
877 * qla2xxx_eh_bus_reset
878 *
879 * Description:
880 *    The bus reset function will reset the bus and abort any executing
881 *    commands.
882 *
883 * Input:
884 *    cmd = Linux SCSI command packet of the command that cause the
885 *          bus reset.
886 *
887 * Returns:
888 *    SUCCESS/FAILURE (defined as macro in scsi.h).
889 *
890 **************************************************************************/
891 static int
892 qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
893 {
894         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
895         scsi_qla_host_t *pha = to_qla_parent(ha);
896         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
897         int ret = FAILED;
898         unsigned int id, lun;
899         unsigned long serial;
900
901         qla2x00_block_error_handler(cmd);
902
903         id = cmd->device->id;
904         lun = cmd->device->lun;
905         serial = cmd->serial_number;
906
907         if (!fcport)
908                 return ret;
909
910         qla_printk(KERN_INFO, ha,
911             "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha->host_no, id, lun);
912
913         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS) {
914                 DEBUG2(printk("%s failed:board disabled\n",__func__));
915                 goto eh_bus_reset_done;
916         }
917
918         if (qla2x00_wait_for_loop_ready(ha) == QLA_SUCCESS) {
919                 if (qla2x00_loop_reset(ha) == QLA_SUCCESS)
920                         ret = SUCCESS;
921         }
922         if (ret == FAILED)
923                 goto eh_bus_reset_done;
924
925         /* Flush outstanding commands. */
926         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) !=
927             QLA_SUCCESS)
928                 ret = FAILED;
929
930 eh_bus_reset_done:
931         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
932             (ret == FAILED) ? "failed" : "succeded");
933
934         return ret;
935 }
936
937 /**************************************************************************
938 * qla2xxx_eh_host_reset
939 *
940 * Description:
941 *    The reset function will reset the Adapter.
942 *
943 * Input:
944 *      cmd = Linux SCSI command packet of the command that cause the
945 *            adapter reset.
946 *
947 * Returns:
948 *      Either SUCCESS or FAILED.
949 *
950 * Note:
951 **************************************************************************/
952 static int
953 qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
954 {
955         scsi_qla_host_t *ha = shost_priv(cmd->device->host);
956         fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
957         int ret = FAILED;
958         unsigned int id, lun;
959         unsigned long serial;
960         scsi_qla_host_t *pha = to_qla_parent(ha);
961
962         qla2x00_block_error_handler(cmd);
963
964         id = cmd->device->id;
965         lun = cmd->device->lun;
966         serial = cmd->serial_number;
967
968         if (!fcport)
969                 return ret;
970
971         qla_printk(KERN_INFO, ha,
972             "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha->host_no, id, lun);
973
974         if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
975                 goto eh_host_reset_lock;
976
977         /*
978          * Fixme-may be dpc thread is active and processing
979          * loop_resync,so wait a while for it to
980          * be completed and then issue big hammer.Otherwise
981          * it may cause I/O failure as big hammer marks the
982          * devices as lost kicking of the port_down_timer
983          * while dpc is stuck for the mailbox to complete.
984          */
985         qla2x00_wait_for_loop_ready(ha);
986         set_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
987         if (qla2x00_abort_isp(pha)) {
988                 clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
989                 /* failed. schedule dpc to try */
990                 set_bit(ISP_ABORT_NEEDED, &pha->dpc_flags);
991
992                 if (qla2x00_wait_for_hba_online(ha) != QLA_SUCCESS)
993                         goto eh_host_reset_lock;
994         }
995         clear_bit(ABORT_ISP_ACTIVE, &pha->dpc_flags);
996
997         /* Waiting for our command in done_queue to be returned to OS.*/
998         if (qla2x00_eh_wait_for_pending_commands(pha, 0, 0, WAIT_HOST) ==
999             QLA_SUCCESS)
1000                 ret = SUCCESS;
1001
1002         if (ha->parent)
1003                 qla2x00_vp_abort_isp(ha);
1004
1005 eh_host_reset_lock:
1006         qla_printk(KERN_INFO, ha, "%s: reset %s\n", __func__,
1007             (ret == FAILED) ? "failed" : "succeded");
1008
1009         return ret;
1010 }
1011
1012 /*
1013 * qla2x00_loop_reset
1014 *      Issue loop reset.
1015 *
1016 * Input:
1017 *      ha = adapter block pointer.
1018 *
1019 * Returns:
1020 *      0 = success
1021 */
1022 int
1023 qla2x00_loop_reset(scsi_qla_host_t *ha)
1024 {
1025         int ret;
1026         struct fc_port *fcport;
1027
1028         if (ha->flags.enable_lip_full_login) {
1029                 ret = qla2x00_full_login_lip(ha);
1030                 if (ret != QLA_SUCCESS) {
1031                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1032                             "full_login_lip=%d.\n", __func__, ha->host_no,
1033                             ret));
1034                 }
1035                 atomic_set(&ha->loop_state, LOOP_DOWN);
1036                 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME);
1037                 qla2x00_mark_all_devices_lost(ha, 0);
1038                 qla2x00_wait_for_loop_ready(ha);
1039         }
1040
1041         if (ha->flags.enable_lip_reset) {
1042                 ret = qla2x00_lip_reset(ha);
1043                 if (ret != QLA_SUCCESS) {
1044                         DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1045                             "lip_reset=%d.\n", __func__, ha->host_no, ret));
1046                 }
1047                 qla2x00_wait_for_loop_ready(ha);
1048         }
1049
1050         if (ha->flags.enable_target_reset) {
1051                 list_for_each_entry(fcport, &ha->fcports, list) {
1052                         if (fcport->port_type != FCT_TARGET)
1053                                 continue;
1054
1055                         ret = ha->isp_ops->target_reset(fcport, 0);
1056                         if (ret != QLA_SUCCESS) {
1057                                 DEBUG2_3(printk("%s(%ld): bus_reset failed: "
1058                                     "target_reset=%d d_id=%x.\n", __func__,
1059                                     ha->host_no, ret, fcport->d_id.b24));
1060                         }
1061                 }
1062         }
1063
1064         /* Issue marker command only when we are going to start the I/O */
1065         ha->marker_needed = 1;
1066
1067         return QLA_SUCCESS;
1068 }
1069
1070 void
1071 qla2x00_abort_all_cmds(scsi_qla_host_t *ha, int res)
1072 {
1073         int cnt;
1074         unsigned long flags;
1075         srb_t *sp;
1076
1077         spin_lock_irqsave(&ha->hardware_lock, flags);
1078         for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
1079                 sp = ha->outstanding_cmds[cnt];
1080                 if (sp) {
1081                         ha->outstanding_cmds[cnt] = NULL;
1082                         sp->cmd->result = res;
1083                         qla2x00_sp_compl(ha, sp);
1084                 }
1085         }
1086         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1087 }
1088
1089 static int
1090 qla2xxx_slave_alloc(struct scsi_device *sdev)
1091 {
1092         struct fc_rport *rport = starget_to_rport(scsi_target(sdev));
1093
1094         if (!rport || fc_remote_port_chkready(rport))
1095                 return -ENXIO;
1096
1097         sdev->hostdata = *(fc_port_t **)rport->dd_data;
1098
1099         return 0;
1100 }
1101
1102 static int
1103 qla2xxx_slave_configure(struct scsi_device *sdev)
1104 {
1105         scsi_qla_host_t *ha = shost_priv(sdev->host);
1106         struct fc_rport *rport = starget_to_rport(sdev->sdev_target);
1107
1108         if (sdev->tagged_supported)
1109                 scsi_activate_tcq(sdev, ha->max_q_depth);
1110         else
1111                 scsi_deactivate_tcq(sdev, ha->max_q_depth);
1112
1113         rport->dev_loss_tmo = ha->port_down_retry_count;
1114
1115         return 0;
1116 }
1117
1118 static void
1119 qla2xxx_slave_destroy(struct scsi_device *sdev)
1120 {
1121         sdev->hostdata = NULL;
1122 }
1123
1124 static int
1125 qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)
1126 {
1127         scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
1128         return sdev->queue_depth;
1129 }
1130
1131 static int
1132 qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
1133 {
1134         if (sdev->tagged_supported) {
1135                 scsi_set_tag_type(sdev, tag_type);
1136                 if (tag_type)
1137                         scsi_activate_tcq(sdev, sdev->queue_depth);
1138                 else
1139                         scsi_deactivate_tcq(sdev, sdev->queue_depth);
1140         } else
1141                 tag_type = 0;
1142
1143         return tag_type;
1144 }
1145
1146 /**
1147  * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1148  * @ha: HA context
1149  *
1150  * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1151  * supported addressing method.
1152  */
1153 static void
1154 qla2x00_config_dma_addressing(scsi_qla_host_t *ha)
1155 {
1156         /* Assume a 32bit DMA mask. */
1157         ha->flags.enable_64bit_addressing = 0;
1158
1159         if (!dma_set_mask(&ha->pdev->dev, DMA_64BIT_MASK)) {
1160                 /* Any upper-dword bits set? */
1161                 if (MSD(dma_get_required_mask(&ha->pdev->dev)) &&
1162                     !pci_set_consistent_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
1163                         /* Ok, a 64bit DMA mask is applicable. */
1164                         ha->flags.enable_64bit_addressing = 1;
1165                         ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64;
1166                         ha->isp_ops->build_iocbs = qla2x00_build_scsi_iocbs_64;
1167                         return;
1168                 }
1169         }
1170
1171         dma_set_mask(&ha->pdev->dev, DMA_32BIT_MASK);
1172         pci_set_consistent_dma_mask(ha->pdev, DMA_32BIT_MASK);
1173 }
1174
1175 static void
1176 qla2x00_enable_intrs(scsi_qla_host_t *ha)
1177 {
1178         unsigned long flags = 0;
1179         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1180
1181         spin_lock_irqsave(&ha->hardware_lock, flags);
1182         ha->interrupts_on = 1;
1183         /* enable risc and host interrupts */
1184         WRT_REG_WORD(&reg->ictrl, ICR_EN_INT | ICR_EN_RISC);
1185         RD_REG_WORD(&reg->ictrl);
1186         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1187
1188 }
1189
1190 static void
1191 qla2x00_disable_intrs(scsi_qla_host_t *ha)
1192 {
1193         unsigned long flags = 0;
1194         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
1195
1196         spin_lock_irqsave(&ha->hardware_lock, flags);
1197         ha->interrupts_on = 0;
1198         /* disable risc and host interrupts */
1199         WRT_REG_WORD(&reg->ictrl, 0);
1200         RD_REG_WORD(&reg->ictrl);
1201         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1202 }
1203
1204 static void
1205 qla24xx_enable_intrs(scsi_qla_host_t *ha)
1206 {
1207         unsigned long flags = 0;
1208         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1209
1210         spin_lock_irqsave(&ha->hardware_lock, flags);
1211         ha->interrupts_on = 1;
1212         WRT_REG_DWORD(&reg->ictrl, ICRX_EN_RISC_INT);
1213         RD_REG_DWORD(&reg->ictrl);
1214         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1215 }
1216
1217 static void
1218 qla24xx_disable_intrs(scsi_qla_host_t *ha)
1219 {
1220         unsigned long flags = 0;
1221         struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
1222
1223         spin_lock_irqsave(&ha->hardware_lock, flags);
1224         ha->interrupts_on = 0;
1225         WRT_REG_DWORD(&reg->ictrl, 0);
1226         RD_REG_DWORD(&reg->ictrl);
1227         spin_unlock_irqrestore(&ha->hardware_lock, flags);
1228 }
1229
1230 static struct isp_operations qla2100_isp_ops = {
1231         .pci_config             = qla2100_pci_config,
1232         .reset_chip             = qla2x00_reset_chip,
1233         .chip_diag              = qla2x00_chip_diag,
1234         .config_rings           = qla2x00_config_rings,
1235         .reset_adapter          = qla2x00_reset_adapter,
1236         .nvram_config           = qla2x00_nvram_config,
1237         .update_fw_options      = qla2x00_update_fw_options,
1238         .load_risc              = qla2x00_load_risc,
1239         .pci_info_str           = qla2x00_pci_info_str,
1240         .fw_version_str         = qla2x00_fw_version_str,
1241         .intr_handler           = qla2100_intr_handler,
1242         .enable_intrs           = qla2x00_enable_intrs,
1243         .disable_intrs          = qla2x00_disable_intrs,
1244         .abort_command          = qla2x00_abort_command,
1245         .target_reset           = qla2x00_abort_target,
1246         .lun_reset              = qla2x00_lun_reset,
1247         .fabric_login           = qla2x00_login_fabric,
1248         .fabric_logout          = qla2x00_fabric_logout,
1249         .calc_req_entries       = qla2x00_calc_iocbs_32,
1250         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1251         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1252         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1253         .read_nvram             = qla2x00_read_nvram_data,
1254         .write_nvram            = qla2x00_write_nvram_data,
1255         .fw_dump                = qla2100_fw_dump,
1256         .beacon_on              = NULL,
1257         .beacon_off             = NULL,
1258         .beacon_blink           = NULL,
1259         .read_optrom            = qla2x00_read_optrom_data,
1260         .write_optrom           = qla2x00_write_optrom_data,
1261         .get_flash_version      = qla2x00_get_flash_version,
1262 };
1263
1264 static struct isp_operations qla2300_isp_ops = {
1265         .pci_config             = qla2300_pci_config,
1266         .reset_chip             = qla2x00_reset_chip,
1267         .chip_diag              = qla2x00_chip_diag,
1268         .config_rings           = qla2x00_config_rings,
1269         .reset_adapter          = qla2x00_reset_adapter,
1270         .nvram_config           = qla2x00_nvram_config,
1271         .update_fw_options      = qla2x00_update_fw_options,
1272         .load_risc              = qla2x00_load_risc,
1273         .pci_info_str           = qla2x00_pci_info_str,
1274         .fw_version_str         = qla2x00_fw_version_str,
1275         .intr_handler           = qla2300_intr_handler,
1276         .enable_intrs           = qla2x00_enable_intrs,
1277         .disable_intrs          = qla2x00_disable_intrs,
1278         .abort_command          = qla2x00_abort_command,
1279         .target_reset           = qla2x00_abort_target,
1280         .lun_reset              = qla2x00_lun_reset,
1281         .fabric_login           = qla2x00_login_fabric,
1282         .fabric_logout          = qla2x00_fabric_logout,
1283         .calc_req_entries       = qla2x00_calc_iocbs_32,
1284         .build_iocbs            = qla2x00_build_scsi_iocbs_32,
1285         .prep_ms_iocb           = qla2x00_prep_ms_iocb,
1286         .prep_ms_fdmi_iocb      = qla2x00_prep_ms_fdmi_iocb,
1287         .read_nvram             = qla2x00_read_nvram_data,
1288         .write_nvram            = qla2x00_write_nvram_data,
1289         .fw_dump                = qla2300_fw_dump,
1290         .beacon_on              = qla2x00_beacon_on,
1291         .beacon_off             = qla2x00_beacon_off,
1292         .beacon_blink           = qla2x00_beacon_blink,
1293         .read_optrom            = qla2x00_read_optrom_data,
1294         .write_optrom           = qla2x00_write_optrom_data,
1295         .get_flash_version      = qla2x00_get_flash_version,
1296 };
1297
1298 static struct isp_operations qla24xx_isp_ops = {
1299         .pci_config             = qla24xx_pci_config,
1300         .reset_chip             = qla24xx_reset_chip,
1301         .chip_diag              = qla24xx_chip_diag,
1302         .config_rings           = qla24xx_config_rings,
1303         .reset_adapter          = qla24xx_reset_adapter,
1304         .nvram_config           = qla24xx_nvram_config,
1305         .update_fw_options      = qla24xx_update_fw_options,
1306         .load_risc              = qla24xx_load_risc,
1307         .pci_info_str           = qla24xx_pci_info_str,
1308         .fw_version_str         = qla24xx_fw_version_str,
1309         .intr_handler           = qla24xx_intr_handler,
1310         .enable_intrs           = qla24xx_enable_intrs,
1311         .disable_intrs          = qla24xx_disable_intrs,
1312         .abort_command          = qla24xx_abort_command,
1313         .target_reset           = qla24xx_abort_target,
1314         .lun_reset              = qla24xx_lun_reset,
1315         .fabric_login           = qla24xx_login_fabric,
1316         .fabric_logout          = qla24xx_fabric_logout,
1317         .calc_req_entries       = NULL,
1318         .build_iocbs            = NULL,
1319         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1320         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1321         .read_nvram             = qla24xx_read_nvram_data,
1322         .write_nvram            = qla24xx_write_nvram_data,
1323         .fw_dump                = qla24xx_fw_dump,
1324         .beacon_on              = qla24xx_beacon_on,
1325         .beacon_off             = qla24xx_beacon_off,
1326         .beacon_blink           = qla24xx_beacon_blink,
1327         .read_optrom            = qla24xx_read_optrom_data,
1328         .write_optrom           = qla24xx_write_optrom_data,
1329         .get_flash_version      = qla24xx_get_flash_version,
1330 };
1331
1332 static struct isp_operations qla25xx_isp_ops = {
1333         .pci_config             = qla25xx_pci_config,
1334         .reset_chip             = qla24xx_reset_chip,
1335         .chip_diag              = qla24xx_chip_diag,
1336         .config_rings           = qla24xx_config_rings,
1337         .reset_adapter          = qla24xx_reset_adapter,
1338         .nvram_config           = qla24xx_nvram_config,
1339         .update_fw_options      = qla24xx_update_fw_options,
1340         .load_risc              = qla24xx_load_risc,
1341         .pci_info_str           = qla24xx_pci_info_str,
1342         .fw_version_str         = qla24xx_fw_version_str,
1343         .intr_handler           = qla24xx_intr_handler,
1344         .enable_intrs           = qla24xx_enable_intrs,
1345         .disable_intrs          = qla24xx_disable_intrs,
1346         .abort_command          = qla24xx_abort_command,
1347         .target_reset           = qla24xx_abort_target,
1348         .lun_reset              = qla24xx_lun_reset,
1349         .fabric_login           = qla24xx_login_fabric,
1350         .fabric_logout          = qla24xx_fabric_logout,
1351         .calc_req_entries       = NULL,
1352         .build_iocbs            = NULL,
1353         .prep_ms_iocb           = qla24xx_prep_ms_iocb,
1354         .prep_ms_fdmi_iocb      = qla24xx_prep_ms_fdmi_iocb,
1355         .read_nvram             = qla25xx_read_nvram_data,
1356         .write_nvram            = qla25xx_write_nvram_data,
1357         .fw_dump                = qla25xx_fw_dump,
1358         .beacon_on              = qla24xx_beacon_on,
1359         .beacon_off             = qla24xx_beacon_off,
1360         .beacon_blink           = qla24xx_beacon_blink,
1361         .read_optrom            = qla25xx_read_optrom_data,
1362         .write_optrom           = qla24xx_write_optrom_data,
1363         .get_flash_version      = qla24xx_get_flash_version,
1364 };
1365
1366 static inline void
1367 qla2x00_set_isp_flags(scsi_qla_host_t *ha)
1368 {
1369         ha->device_type = DT_EXTENDED_IDS;
1370         switch (ha->pdev->device) {
1371         case PCI_DEVICE_ID_QLOGIC_ISP2100:
1372                 ha->device_type |= DT_ISP2100;
1373                 ha->device_type &= ~DT_EXTENDED_IDS;
1374                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1375                 break;
1376         case PCI_DEVICE_ID_QLOGIC_ISP2200:
1377                 ha->device_type |= DT_ISP2200;
1378                 ha->device_type &= ~DT_EXTENDED_IDS;
1379                 ha->fw_srisc_address = RISC_START_ADDRESS_2100;
1380                 break;
1381         case PCI_DEVICE_ID_QLOGIC_ISP2300:
1382                 ha->device_type |= DT_ISP2300;
1383                 ha->device_type |= DT_ZIO_SUPPORTED;
1384                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1385                 break;
1386         case PCI_DEVICE_ID_QLOGIC_ISP2312:
1387                 ha->device_type |= DT_ISP2312;
1388                 ha->device_type |= DT_ZIO_SUPPORTED;
1389                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1390                 break;
1391         case PCI_DEVICE_ID_QLOGIC_ISP2322:
1392                 ha->device_type |= DT_ISP2322;
1393                 ha->device_type |= DT_ZIO_SUPPORTED;
1394                 if (ha->pdev->subsystem_vendor == 0x1028 &&
1395                     ha->pdev->subsystem_device == 0x0170)
1396                         ha->device_type |= DT_OEM_001;
1397                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1398                 break;
1399         case PCI_DEVICE_ID_QLOGIC_ISP6312:
1400                 ha->device_type |= DT_ISP6312;
1401                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1402                 break;
1403         case PCI_DEVICE_ID_QLOGIC_ISP6322:
1404                 ha->device_type |= DT_ISP6322;
1405                 ha->fw_srisc_address = RISC_START_ADDRESS_2300;
1406                 break;
1407         case PCI_DEVICE_ID_QLOGIC_ISP2422:
1408                 ha->device_type |= DT_ISP2422;
1409                 ha->device_type |= DT_ZIO_SUPPORTED;
1410                 ha->device_type |= DT_FWI2;
1411                 ha->device_type |= DT_IIDMA;
1412                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1413                 break;
1414         case PCI_DEVICE_ID_QLOGIC_ISP2432:
1415                 ha->device_type |= DT_ISP2432;
1416                 ha->device_type |= DT_ZIO_SUPPORTED;
1417                 ha->device_type |= DT_FWI2;
1418                 ha->device_type |= DT_IIDMA;
1419                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1420                 break;
1421         case PCI_DEVICE_ID_QLOGIC_ISP8432:
1422                 ha->device_type |= DT_ISP8432;
1423                 ha->device_type |= DT_ZIO_SUPPORTED;
1424                 ha->device_type |= DT_FWI2;
1425                 ha->device_type |= DT_IIDMA;
1426                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1427                 break;
1428         case PCI_DEVICE_ID_QLOGIC_ISP5422:
1429                 ha->device_type |= DT_ISP5422;
1430                 ha->device_type |= DT_FWI2;
1431                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1432                 break;
1433         case PCI_DEVICE_ID_QLOGIC_ISP5432:
1434                 ha->device_type |= DT_ISP5432;
1435                 ha->device_type |= DT_FWI2;
1436                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1437                 break;
1438         case PCI_DEVICE_ID_QLOGIC_ISP2532:
1439                 ha->device_type |= DT_ISP2532;
1440                 ha->device_type |= DT_ZIO_SUPPORTED;
1441                 ha->device_type |= DT_FWI2;
1442                 ha->device_type |= DT_IIDMA;
1443                 ha->fw_srisc_address = RISC_START_ADDRESS_2400;
1444                 break;
1445         }
1446 }
1447
1448 static int
1449 qla2x00_iospace_config(scsi_qla_host_t *ha)
1450 {
1451         resource_size_t pio;
1452
1453         if (pci_request_selected_regions(ha->pdev, ha->bars,
1454             QLA2XXX_DRIVER_NAME)) {
1455                 qla_printk(KERN_WARNING, ha,
1456                     "Failed to reserve PIO/MMIO regions (%s)\n",
1457                     pci_name(ha->pdev));
1458
1459                 goto iospace_error_exit;
1460         }
1461         if (!(ha->bars & 1))
1462                 goto skip_pio;
1463
1464         /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1465         pio = pci_resource_start(ha->pdev, 0);
1466         if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
1467                 if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
1468                         qla_printk(KERN_WARNING, ha,
1469                             "Invalid PCI I/O region size (%s)...\n",
1470                                 pci_name(ha->pdev));
1471                         pio = 0;
1472                 }
1473         } else {
1474                 qla_printk(KERN_WARNING, ha,
1475                     "region #0 not a PIO resource (%s)...\n",
1476                     pci_name(ha->pdev));
1477                 pio = 0;
1478         }
1479         ha->pio_address = pio;
1480
1481 skip_pio:
1482         /* Use MMIO operations for all accesses. */
1483         if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
1484                 qla_printk(KERN_ERR, ha,
1485                     "region #1 not an MMIO resource (%s), aborting\n",
1486                     pci_name(ha->pdev));
1487                 goto iospace_error_exit;
1488         }
1489         if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
1490                 qla_printk(KERN_ERR, ha,
1491                     "Invalid PCI mem region size (%s), aborting\n",
1492                         pci_name(ha->pdev));
1493                 goto iospace_error_exit;
1494         }
1495
1496         ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
1497         if (!ha->iobase) {
1498                 qla_printk(KERN_ERR, ha,
1499                     "cannot remap MMIO (%s), aborting\n", pci_name(ha->pdev));
1500
1501                 goto iospace_error_exit;
1502         }
1503
1504         return (0);
1505
1506 iospace_error_exit:
1507         return (-ENOMEM);
1508 }
1509
1510 static void
1511 qla2xxx_scan_start(struct Scsi_Host *shost)
1512 {
1513         scsi_qla_host_t *ha = shost_priv(shost);
1514
1515         set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
1516         set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
1517         set_bit(RSCN_UPDATE, &ha->dpc_flags);
1518         set_bit(NPIV_CONFIG_NEEDED, &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         /* This may fail but that's ok */
1570         pci_enable_pcie_error_reporting(pdev);
1571
1572         host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
1573         if (host == NULL) {
1574                 printk(KERN_WARNING
1575                     "qla2xxx: Couldn't allocate host from scsi layer!\n");
1576                 goto probe_disable_device;
1577         }
1578
1579         /* Clear our data area */
1580         ha = shost_priv(host);
1581         memset(ha, 0, sizeof(scsi_qla_host_t));
1582
1583         ha->pdev = pdev;
1584         ha->host = host;
1585         ha->host_no = host->host_no;
1586         sprintf(ha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, ha->host_no);
1587         ha->parent = NULL;
1588         ha->bars = bars;
1589         ha->mem_only = mem_only;
1590         spin_lock_init(&ha->hardware_lock);
1591
1592         /* Set ISP-type information. */
1593         qla2x00_set_isp_flags(ha);
1594
1595         /* Configure PCI I/O space */
1596         ret = qla2x00_iospace_config(ha);
1597         if (ret)
1598                 goto probe_failed;
1599
1600         qla_printk(KERN_INFO, ha,
1601             "Found an ISP%04X, irq %d, iobase 0x%p\n", pdev->device, pdev->irq,
1602             ha->iobase);
1603
1604         ha->prev_topology = 0;
1605         ha->init_cb_size = sizeof(init_cb_t);
1606         ha->mgmt_svr_loop_id = MANAGEMENT_SERVER + ha->vp_idx;
1607         ha->link_data_rate = PORT_SPEED_UNKNOWN;
1608         ha->optrom_size = OPTROM_SIZE_2300;
1609
1610         ha->max_q_depth = MAX_Q_DEPTH;
1611         if (ql2xmaxqdepth != 0 && ql2xmaxqdepth <= 0xffffU)
1612                 ha->max_q_depth = ql2xmaxqdepth;
1613
1614         /* Assign ISP specific operations. */
1615         if (IS_QLA2100(ha)) {
1616                 host->max_id = MAX_TARGETS_2100;
1617                 ha->mbx_count = MAILBOX_REGISTER_COUNT_2100;
1618                 ha->request_q_length = REQUEST_ENTRY_CNT_2100;
1619                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1620                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1621                 host->sg_tablesize = 32;
1622                 ha->gid_list_info_size = 4;
1623                 ha->isp_ops = &qla2100_isp_ops;
1624         } else if (IS_QLA2200(ha)) {
1625                 host->max_id = MAX_TARGETS_2200;
1626                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1627                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1628                 ha->response_q_length = RESPONSE_ENTRY_CNT_2100;
1629                 ha->last_loop_id = SNS_LAST_LOOP_ID_2100;
1630                 ha->gid_list_info_size = 4;
1631                 ha->isp_ops = &qla2100_isp_ops;
1632         } else if (IS_QLA23XX(ha)) {
1633                 host->max_id = MAX_TARGETS_2200;
1634                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1635                 ha->request_q_length = REQUEST_ENTRY_CNT_2200;
1636                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1637                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1638                 ha->gid_list_info_size = 6;
1639                 if (IS_QLA2322(ha) || IS_QLA6322(ha))
1640                         ha->optrom_size = OPTROM_SIZE_2322;
1641                 ha->isp_ops = &qla2300_isp_ops;
1642         } else if (IS_QLA24XX_TYPE(ha)) {
1643                 host->max_id = MAX_TARGETS_2200;
1644                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1645                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1646                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1647                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1648                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1649                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1650                 ha->gid_list_info_size = 8;
1651                 ha->optrom_size = OPTROM_SIZE_24XX;
1652                 ha->isp_ops = &qla24xx_isp_ops;
1653         } else if (IS_QLA25XX(ha)) {
1654                 host->max_id = MAX_TARGETS_2200;
1655                 ha->mbx_count = MAILBOX_REGISTER_COUNT;
1656                 ha->request_q_length = REQUEST_ENTRY_CNT_24XX;
1657                 ha->response_q_length = RESPONSE_ENTRY_CNT_2300;
1658                 ha->last_loop_id = SNS_LAST_LOOP_ID_2300;
1659                 ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
1660                 ha->mgmt_svr_loop_id = 10 + ha->vp_idx;
1661                 ha->gid_list_info_size = 8;
1662                 ha->optrom_size = OPTROM_SIZE_25XX;
1663                 ha->isp_ops = &qla25xx_isp_ops;
1664         }
1665         host->can_queue = ha->request_q_length + 128;
1666
1667         mutex_init(&ha->vport_lock);
1668         init_completion(&ha->mbx_cmd_comp);
1669         complete(&ha->mbx_cmd_comp);
1670         init_completion(&ha->mbx_intr_comp);
1671
1672         INIT_LIST_HEAD(&ha->list);
1673         INIT_LIST_HEAD(&ha->fcports);
1674         INIT_LIST_HEAD(&ha->vp_list);
1675         INIT_LIST_HEAD(&ha->work_list);
1676
1677         set_bit(0, (unsigned long *) ha->vp_idx_map);
1678
1679         qla2x00_config_dma_addressing(ha);
1680         if (qla2x00_mem_alloc(ha)) {
1681                 qla_printk(KERN_WARNING, ha,
1682                     "[ERROR] Failed to allocate memory for adapter\n");
1683
1684                 ret = -ENOMEM;
1685                 goto probe_failed;
1686         }
1687
1688         if (qla2x00_initialize_adapter(ha)) {
1689                 qla_printk(KERN_WARNING, ha,
1690                     "Failed to initialize adapter\n");
1691
1692                 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1693                     "Adapter flags %x.\n",
1694                     ha->host_no, ha->device_flags));
1695
1696                 ret = -ENODEV;
1697                 goto probe_failed;
1698         }
1699
1700         /*
1701          * Startup the kernel thread for this host adapter
1702          */
1703         ha->dpc_thread = kthread_create(qla2x00_do_dpc, ha,
1704                         "%s_dpc", ha->host_str);
1705         if (IS_ERR(ha->dpc_thread)) {
1706                 qla_printk(KERN_WARNING, ha,
1707                     "Unable to start DPC thread!\n");
1708                 ret = PTR_ERR(ha->dpc_thread);
1709                 goto probe_failed;
1710         }
1711
1712         host->this_id = 255;
1713         host->cmd_per_lun = 3;
1714         host->unique_id = host->host_no;
1715         host->max_cmd_len = MAX_CMDSZ;
1716         host->max_channel = MAX_BUSES - 1;
1717         host->max_lun = MAX_LUNS;
1718         host->transportt = qla2xxx_transport_template;
1719
1720         ret = qla2x00_request_irqs(ha);
1721         if (ret)
1722                 goto probe_failed;
1723
1724         /* Initialized the timer */
1725         qla2x00_start_timer(ha, qla2x00_timer, WATCH_INTERVAL);
1726
1727         DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1728             ha->host_no, ha));
1729
1730         pci_set_drvdata(pdev, ha);
1731
1732         ha->flags.init_done = 1;
1733         ha->flags.online = 1;
1734
1735         ret = scsi_add_host(host, &pdev->dev);
1736         if (ret)
1737                 goto probe_failed;
1738
1739         ha->isp_ops->enable_intrs(ha);
1740
1741         scsi_scan_host(host);
1742
1743         qla2x00_alloc_sysfs_attr(ha);
1744
1745         qla2x00_init_host_attr(ha);
1746
1747         qla2x00_dfs_setup(ha);
1748
1749         qla_printk(KERN_INFO, ha, "\n"
1750             " QLogic Fibre Channel HBA Driver: %s\n"
1751             "  QLogic %s - %s\n"
1752             "  ISP%04X: %s @ %s hdma%c, host#=%ld, fw=%s\n",
1753             qla2x00_version_str, ha->model_number,
1754             ha->model_desc ? ha->model_desc: "", pdev->device,
1755             ha->isp_ops->pci_info_str(ha, pci_info), pci_name(pdev),
1756             ha->flags.enable_64bit_addressing ? '+': '-', ha->host_no,
1757             ha->isp_ops->fw_version_str(ha, fw_str));
1758
1759         return 0;
1760
1761 probe_failed:
1762         qla2x00_free_device(ha);
1763
1764         scsi_host_put(host);
1765
1766 probe_disable_device:
1767         pci_disable_device(pdev);
1768
1769 probe_out:
1770         return ret;
1771 }
1772
1773 static void
1774 qla2x00_remove_one(struct pci_dev *pdev)
1775 {
1776         scsi_qla_host_t *ha, *vha, *temp;
1777
1778         ha = pci_get_drvdata(pdev);
1779
1780         list_for_each_entry_safe(vha, temp, &ha->vp_list, vp_list)
1781                 fc_vport_terminate(vha->fc_vport);
1782
1783         set_bit(UNLOADING, &ha->dpc_flags);
1784
1785         qla2x00_dfs_remove(ha);
1786
1787         qla84xx_put_chip(ha);
1788
1789         qla2x00_free_sysfs_attr(ha);
1790
1791         fc_remove_host(ha->host);
1792
1793         scsi_remove_host(ha->host);
1794
1795         qla2x00_free_device(ha);
1796
1797         scsi_host_put(ha->host);
1798
1799         pci_disable_device(pdev);
1800         pci_set_drvdata(pdev, NULL);
1801 }
1802
1803 static void
1804 qla2x00_free_device(scsi_qla_host_t *ha)
1805 {
1806         qla2x00_abort_all_cmds(ha, DID_NO_CONNECT << 16);
1807
1808         /* Disable timer */
1809         if (ha->timer_active)
1810                 qla2x00_stop_timer(ha);
1811
1812         ha->flags.online = 0;
1813
1814         /* Kill the kernel thread for this host */
1815         if (ha->dpc_thread) {
1816                 struct task_struct *t = ha->dpc_thread;
1817
1818                 /*
1819                  * qla2xxx_wake_dpc checks for ->dpc_thread
1820                  * so we need to zero it out.
1821                  */
1822                 ha->dpc_thread = NULL;
1823                 kthread_stop(t);
1824         }
1825
1826         if (ha->flags.fce_enabled)
1827                 qla2x00_disable_fce_trace(ha, NULL, NULL);
1828
1829         if (ha->eft)
1830                 qla2x00_disable_eft_trace(ha);
1831
1832         /* Stop currently executing firmware. */
1833         qla2x00_try_to_stop_firmware(ha);
1834
1835         /* turn-off interrupts on the card */
1836         if (ha->interrupts_on)
1837                 ha->isp_ops->disable_intrs(ha);
1838
1839         qla2x00_mem_free(ha);
1840
1841         qla2x00_free_irqs(ha);
1842
1843         /* release io space registers  */
1844         if (ha->iobase)
1845                 iounmap(ha->iobase);
1846         pci_release_selected_regions(ha->pdev, ha->bars);
1847 }
1848
1849 static inline void
1850 qla2x00_schedule_rport_del(struct scsi_qla_host *ha, fc_port_t *fcport,
1851     int defer)
1852 {
1853         struct fc_rport *rport;
1854         scsi_qla_host_t *pha = to_qla_parent(ha);
1855
1856         if (!fcport->rport)
1857                 return;
1858
1859         rport = fcport->rport;
1860         if (defer) {
1861                 spin_lock_irq(ha->host->host_lock);
1862                 fcport->drport = rport;
1863                 spin_unlock_irq(ha->host->host_lock);
1864                 set_bit(FCPORT_UPDATE_NEEDED, &pha->dpc_flags);
1865                 qla2xxx_wake_dpc(pha);
1866         } else
1867                 fc_remote_port_delete(rport);
1868 }
1869
1870 /*
1871  * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1872  *
1873  * Input: ha = adapter block pointer.  fcport = port structure pointer.
1874  *
1875  * Return: None.
1876  *
1877  * Context:
1878  */
1879 void qla2x00_mark_device_lost(scsi_qla_host_t *ha, fc_port_t *fcport,
1880     int do_login, int defer)
1881 {
1882         if (atomic_read(&fcport->state) == FCS_ONLINE &&
1883             ha->vp_idx == fcport->vp_idx)
1884                 qla2x00_schedule_rport_del(ha, fcport, defer);
1885
1886         /*
1887          * We may need to retry the login, so don't change the state of the
1888          * port but do the retries.
1889          */
1890         if (atomic_read(&fcport->state) != FCS_DEVICE_DEAD)
1891                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1892
1893         if (!do_login)
1894                 return;
1895
1896         if (fcport->login_retry == 0) {
1897                 fcport->login_retry = ha->login_retry_count;
1898                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
1899
1900                 DEBUG(printk("scsi(%ld): Port login retry: "
1901                     "%02x%02x%02x%02x%02x%02x%02x%02x, "
1902                     "id = 0x%04x retry cnt=%d\n",
1903                     ha->host_no,
1904                     fcport->port_name[0],
1905                     fcport->port_name[1],
1906                     fcport->port_name[2],
1907                     fcport->port_name[3],
1908                     fcport->port_name[4],
1909                     fcport->port_name[5],
1910                     fcport->port_name[6],
1911                     fcport->port_name[7],
1912                     fcport->loop_id,
1913                     fcport->login_retry));
1914         }
1915 }
1916
1917 /*
1918  * qla2x00_mark_all_devices_lost
1919  *      Updates fcport state when device goes offline.
1920  *
1921  * Input:
1922  *      ha = adapter block pointer.
1923  *      fcport = port structure pointer.
1924  *
1925  * Return:
1926  *      None.
1927  *
1928  * Context:
1929  */
1930 void
1931 qla2x00_mark_all_devices_lost(scsi_qla_host_t *ha, int defer)
1932 {
1933         fc_port_t *fcport;
1934         scsi_qla_host_t *pha = to_qla_parent(ha);
1935
1936         list_for_each_entry(fcport, &pha->fcports, list) {
1937                 if (ha->vp_idx != fcport->vp_idx)
1938                         continue;
1939                 /*
1940                  * No point in marking the device as lost, if the device is
1941                  * already DEAD.
1942                  */
1943                 if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD)
1944                         continue;
1945                 if (atomic_read(&fcport->state) == FCS_ONLINE)
1946                         qla2x00_schedule_rport_del(ha, fcport, defer);
1947                 atomic_set(&fcport->state, FCS_DEVICE_LOST);
1948         }
1949 }
1950
1951 /*
1952 * qla2x00_mem_alloc
1953 *      Allocates adapter memory.
1954 *
1955 * Returns:
1956 *      0  = success.
1957 *      !0  = failure.
1958 */
1959 static int
1960 qla2x00_mem_alloc(scsi_qla_host_t *ha)
1961 {
1962         char    name[16];
1963
1964         ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
1965             (ha->request_q_length + 1) * sizeof(request_t), &ha->request_dma,
1966             GFP_KERNEL);
1967         if (!ha->request_ring)
1968                 goto fail;
1969
1970         ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
1971             (ha->response_q_length + 1) * sizeof(response_t),
1972             &ha->response_dma, GFP_KERNEL);
1973         if (!ha->response_ring)
1974                 goto fail_free_request_ring;
1975
1976         ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
1977             &ha->gid_list_dma, GFP_KERNEL);
1978         if (!ha->gid_list)
1979                 goto fail_free_response_ring;
1980
1981         ha->init_cb = dma_alloc_coherent(&ha->pdev->dev, ha->init_cb_size,
1982             &ha->init_cb_dma, GFP_KERNEL);
1983         if (!ha->init_cb)
1984                 goto fail_free_gid_list;
1985
1986         snprintf(name, sizeof(name), "%s_%ld", QLA2XXX_DRIVER_NAME,
1987             ha->host_no);
1988         ha->s_dma_pool = dma_pool_create(name, &ha->pdev->dev,
1989             DMA_POOL_SIZE, 8, 0);
1990         if (!ha->s_dma_pool)
1991                 goto fail_free_init_cb;
1992
1993         ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
1994         if (!ha->srb_mempool)
1995                 goto fail_free_s_dma_pool;
1996
1997         /* Get memory for cached NVRAM */
1998         ha->nvram = kzalloc(MAX_NVRAM_SIZE, GFP_KERNEL);
1999         if (!ha->nvram)
2000                 goto fail_free_srb_mempool;
2001
2002         /* Allocate memory for SNS commands */
2003         if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
2004                 /* Get consistent memory allocated for SNS commands */
2005                 ha->sns_cmd = dma_alloc_coherent(&ha->pdev->dev,
2006                     sizeof(struct sns_cmd_pkt), &ha->sns_cmd_dma, GFP_KERNEL);
2007                 if (!ha->sns_cmd)
2008                         goto fail_free_nvram;
2009         } else {
2010                 /* Get consistent memory allocated for MS IOCB */
2011                 ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
2012                     &ha->ms_iocb_dma);
2013                 if (!ha->ms_iocb)
2014                         goto fail_free_nvram;
2015
2016                 /* Get consistent memory allocated for CT SNS commands */
2017                 ha->ct_sns = dma_alloc_coherent(&ha->pdev->dev,
2018                     sizeof(struct ct_sns_pkt), &ha->ct_sns_dma, GFP_KERNEL);
2019                 if (!ha->ct_sns)
2020                         goto fail_free_ms_iocb;
2021         }
2022
2023         return 0;
2024
2025 fail_free_ms_iocb:
2026         dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2027         ha->ms_iocb = NULL;
2028         ha->ms_iocb_dma = 0;
2029 fail_free_nvram:
2030         kfree(ha->nvram);
2031         ha->nvram = NULL;
2032 fail_free_srb_mempool:
2033         mempool_destroy(ha->srb_mempool);
2034         ha->srb_mempool = NULL;
2035 fail_free_s_dma_pool:
2036         dma_pool_destroy(ha->s_dma_pool);
2037         ha->s_dma_pool = NULL;
2038 fail_free_init_cb:
2039         dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
2040             ha->init_cb_dma);
2041         ha->init_cb = NULL;
2042         ha->init_cb_dma = 0;
2043 fail_free_gid_list:
2044         dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2045             ha->gid_list_dma);
2046         ha->gid_list = NULL;
2047         ha->gid_list_dma = 0;
2048 fail_free_response_ring:
2049         dma_free_coherent(&ha->pdev->dev, (ha->response_q_length + 1) *
2050             sizeof(response_t), ha->response_ring, ha->response_dma);
2051         ha->response_ring = NULL;
2052         ha->response_dma = 0;
2053 fail_free_request_ring:
2054         dma_free_coherent(&ha->pdev->dev, (ha->request_q_length + 1) *
2055             sizeof(request_t), ha->request_ring, ha->request_dma);
2056         ha->request_ring = NULL;
2057         ha->request_dma = 0;
2058 fail:
2059         return -ENOMEM;
2060 }
2061
2062 /*
2063 * qla2x00_mem_free
2064 *      Frees all adapter allocated memory.
2065 *
2066 * Input:
2067 *      ha = adapter block pointer.
2068 */
2069 static void
2070 qla2x00_mem_free(scsi_qla_host_t *ha)
2071 {
2072         struct list_head        *fcpl, *fcptemp;
2073         fc_port_t       *fcport;
2074
2075         if (ha->srb_mempool)
2076                 mempool_destroy(ha->srb_mempool);
2077
2078         if (ha->fce)
2079                 dma_free_coherent(&ha->pdev->dev, FCE_SIZE, ha->fce,
2080                     ha->fce_dma);
2081
2082         if (ha->fw_dump) {
2083                 if (ha->eft)
2084                         dma_free_coherent(&ha->pdev->dev,
2085                             ntohl(ha->fw_dump->eft_size), ha->eft, ha->eft_dma);
2086                 vfree(ha->fw_dump);
2087         }
2088
2089         if (ha->sns_cmd)
2090                 dma_free_coherent(&ha->pdev->dev, sizeof(struct sns_cmd_pkt),
2091                     ha->sns_cmd, ha->sns_cmd_dma);
2092
2093         if (ha->ct_sns)
2094                 dma_free_coherent(&ha->pdev->dev, sizeof(struct ct_sns_pkt),
2095                     ha->ct_sns, ha->ct_sns_dma);
2096
2097         if (ha->sfp_data)
2098                 dma_pool_free(ha->s_dma_pool, ha->sfp_data, ha->sfp_data_dma);
2099
2100         if (ha->ms_iocb)
2101                 dma_pool_free(ha->s_dma_pool, ha->ms_iocb, ha->ms_iocb_dma);
2102
2103         if (ha->s_dma_pool)
2104                 dma_pool_destroy(ha->s_dma_pool);
2105
2106         if (ha->init_cb)
2107                 dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
2108                     ha->init_cb, ha->init_cb_dma);
2109
2110         if (ha->gid_list)
2111                 dma_free_coherent(&ha->pdev->dev, GID_LIST_SIZE, ha->gid_list,
2112                     ha->gid_list_dma);
2113
2114         if (ha->response_ring)
2115                 dma_free_coherent(&ha->pdev->dev,
2116                     (ha->response_q_length + 1) * sizeof(response_t),
2117                     ha->response_ring, ha->response_dma);
2118
2119         if (ha->request_ring)
2120                 dma_free_coherent(&ha->pdev->dev,
2121                     (ha->request_q_length + 1) * sizeof(request_t),
2122                     ha->request_ring, ha->request_dma);
2123
2124         ha->srb_mempool = NULL;
2125         ha->eft = NULL;
2126         ha->eft_dma = 0;
2127         ha->sns_cmd = NULL;
2128         ha->sns_cmd_dma = 0;
2129         ha->ct_sns = NULL;
2130         ha->ct_sns_dma = 0;
2131         ha->ms_iocb = NULL;
2132         ha->ms_iocb_dma = 0;
2133         ha->init_cb = NULL;
2134         ha->init_cb_dma = 0;
2135
2136         ha->s_dma_pool = NULL;
2137
2138         ha->gid_list = NULL;
2139         ha->gid_list_dma = 0;
2140
2141         ha->response_ring = NULL;
2142         ha->response_dma = 0;
2143         ha->request_ring = NULL;
2144         ha->request_dma = 0;
2145
2146         list_for_each_safe(fcpl, fcptemp, &ha->fcports) {
2147                 fcport = list_entry(fcpl, fc_port_t, list);
2148
2149                 /* fc ports */
2150                 list_del_init(&fcport->list);
2151                 kfree(fcport);
2152         }
2153         INIT_LIST_HEAD(&ha->fcports);
2154
2155         ha->fw_dump = NULL;
2156         ha->fw_dumped = 0;
2157         ha->fw_dump_reading = 0;
2158
2159         vfree(ha->optrom_buffer);
2160         kfree(ha->nvram);
2161 }
2162
2163 static struct qla_work_evt *
2164 qla2x00_alloc_work(struct scsi_qla_host *ha, enum qla_work_type type,
2165     int locked)
2166 {
2167         struct qla_work_evt *e;
2168
2169         e = kzalloc(sizeof(struct qla_work_evt), locked ? GFP_ATOMIC:
2170             GFP_KERNEL);
2171         if (!e)
2172                 return NULL;
2173
2174         INIT_LIST_HEAD(&e->list);
2175         e->type = type;
2176         e->flags = QLA_EVT_FLAG_FREE;
2177         return e;
2178 }
2179
2180 static int
2181 qla2x00_post_work(struct scsi_qla_host *ha, struct qla_work_evt *e, int locked)
2182 {
2183         unsigned long uninitialized_var(flags);
2184         scsi_qla_host_t *pha = to_qla_parent(ha);
2185
2186         if (!locked)
2187                 spin_lock_irqsave(&pha->hardware_lock, flags);
2188         list_add_tail(&e->list, &ha->work_list);
2189         qla2xxx_wake_dpc(ha);
2190         if (!locked)
2191                 spin_unlock_irqrestore(&pha->hardware_lock, flags);
2192         return QLA_SUCCESS;
2193 }
2194
2195 int
2196 qla2x00_post_aen_work(struct scsi_qla_host *ha, enum fc_host_event_code code,
2197     u32 data)
2198 {
2199         struct qla_work_evt *e;
2200
2201         e = qla2x00_alloc_work(ha, QLA_EVT_AEN, 1);
2202         if (!e)
2203                 return QLA_FUNCTION_FAILED;
2204
2205         e->u.aen.code = code;
2206         e->u.aen.data = data;
2207         return qla2x00_post_work(ha, e, 1);
2208 }
2209
2210 int
2211 qla2x00_post_hwe_work(struct scsi_qla_host *ha, uint16_t code, uint16_t d1,
2212     uint16_t d2, uint16_t d3)
2213 {
2214         struct qla_work_evt *e;
2215
2216         e = qla2x00_alloc_work(ha, QLA_EVT_HWE_LOG, 1);
2217         if (!e)
2218                 return QLA_FUNCTION_FAILED;
2219
2220         e->u.hwe.code = code;
2221         e->u.hwe.d1 = d1;
2222         e->u.hwe.d2 = d2;
2223         e->u.hwe.d3 = d3;
2224         return qla2x00_post_work(ha, e, 1);
2225 }
2226
2227 static void
2228 qla2x00_do_work(struct scsi_qla_host *ha)
2229 {
2230         struct qla_work_evt *e;
2231         scsi_qla_host_t *pha = to_qla_parent(ha);
2232
2233         spin_lock_irq(&pha->hardware_lock);
2234         while (!list_empty(&ha->work_list)) {
2235                 e = list_entry(ha->work_list.next, struct qla_work_evt, list);
2236                 list_del_init(&e->list);
2237                 spin_unlock_irq(&pha->hardware_lock);
2238
2239                 switch (e->type) {
2240                 case QLA_EVT_AEN:
2241                         fc_host_post_event(ha->host, fc_get_event_number(),
2242                             e->u.aen.code, e->u.aen.data);
2243                         break;
2244                 case QLA_EVT_HWE_LOG:
2245                         qla2xxx_hw_event_log(ha, e->u.hwe.code, e->u.hwe.d1,
2246                             e->u.hwe.d2, e->u.hwe.d3);
2247                         break;
2248                 }
2249                 if (e->flags & QLA_EVT_FLAG_FREE)
2250                         kfree(e);
2251                 spin_lock_irq(&pha->hardware_lock);
2252         }
2253         spin_unlock_irq(&pha->hardware_lock);
2254 }
2255
2256 /**************************************************************************
2257 * qla2x00_do_dpc
2258 *   This kernel thread is a task that is schedule by the interrupt handler
2259 *   to perform the background processing for interrupts.
2260 *
2261 * Notes:
2262 * This task always run in the context of a kernel thread.  It
2263 * is kick-off by the driver's detect code and starts up
2264 * up one per adapter. It immediately goes to sleep and waits for
2265 * some fibre event.  When either the interrupt handler or
2266 * the timer routine detects a event it will one of the task
2267 * bits then wake us up.
2268 **************************************************************************/
2269 static int
2270 qla2x00_do_dpc(void *data)
2271 {
2272         int             rval;
2273         scsi_qla_host_t *ha;
2274         fc_port_t       *fcport;
2275         uint8_t         status;
2276         uint16_t        next_loopid;
2277         struct scsi_qla_host *vha;
2278         int             i;
2279
2280
2281         ha = (scsi_qla_host_t *)data;
2282
2283         set_user_nice(current, -20);
2284
2285         while (!kthread_should_stop()) {
2286                 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
2287
2288                 set_current_state(TASK_INTERRUPTIBLE);
2289                 schedule();
2290                 __set_current_state(TASK_RUNNING);
2291
2292                 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
2293
2294                 /* Initialization not yet finished. Don't do anything yet. */
2295                 if (!ha->flags.init_done)
2296                         continue;
2297
2298                 DEBUG3(printk("scsi(%ld): DPC handler\n", ha->host_no));
2299
2300                 ha->dpc_active = 1;
2301
2302                 if (ha->flags.mbox_busy) {
2303                         ha->dpc_active = 0;
2304                         continue;
2305                 }
2306
2307                 qla2x00_do_work(ha);
2308
2309                 if (test_and_clear_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) {
2310
2311                         DEBUG(printk("scsi(%ld): dpc: sched "
2312                             "qla2x00_abort_isp ha = %p\n",
2313                             ha->host_no, ha));
2314                         if (!(test_and_set_bit(ABORT_ISP_ACTIVE,
2315                             &ha->dpc_flags))) {
2316
2317                                 if (qla2x00_abort_isp(ha)) {
2318                                         /* failed. retry later */
2319                                         set_bit(ISP_ABORT_NEEDED,
2320                                             &ha->dpc_flags);
2321                                 }
2322                                 clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2323                         }
2324
2325                         for_each_mapped_vp_idx(ha, i) {
2326                                 list_for_each_entry(vha, &ha->vp_list,
2327                                     vp_list) {
2328                                         if (i == vha->vp_idx) {
2329                                                 set_bit(ISP_ABORT_NEEDED,
2330                                                     &vha->dpc_flags);
2331                                                 break;
2332                                         }
2333                                 }
2334                         }
2335
2336                         DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
2337                             ha->host_no));
2338                 }
2339
2340                 if (test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags)) {
2341                         qla2x00_update_fcports(ha);
2342                         clear_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags);
2343                 }
2344
2345                 if (test_and_clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) &&
2346                     (!(test_and_set_bit(RESET_ACTIVE, &ha->dpc_flags)))) {
2347
2348                         DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
2349                             ha->host_no));
2350
2351                         qla2x00_rst_aen(ha);
2352                         clear_bit(RESET_ACTIVE, &ha->dpc_flags);
2353                 }
2354
2355                 /* Retry each device up to login retry count */
2356                 if ((test_and_clear_bit(RELOGIN_NEEDED, &ha->dpc_flags)) &&
2357                     !test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) &&
2358                     atomic_read(&ha->loop_state) != LOOP_DOWN) {
2359
2360                         DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2361                             ha->host_no));
2362
2363                         next_loopid = 0;
2364                         list_for_each_entry(fcport, &ha->fcports, list) {
2365                                 /*
2366                                  * If the port is not ONLINE then try to login
2367                                  * to it if we haven't run out of retries.
2368                                  */
2369                                 if (atomic_read(&fcport->state) != FCS_ONLINE &&
2370                                     fcport->login_retry) {
2371
2372                                         if (fcport->flags & FCF_FABRIC_DEVICE) {
2373                                                 if (fcport->flags &
2374                                                     FCF_TAPE_PRESENT)
2375                                                         ha->isp_ops->fabric_logout(
2376                                                             ha, fcport->loop_id,
2377                                                             fcport->d_id.b.domain,
2378                                                             fcport->d_id.b.area,
2379                                                             fcport->d_id.b.al_pa);
2380                                                 status = qla2x00_fabric_login(
2381                                                     ha, fcport, &next_loopid);
2382                                         } else
2383                                                 status =
2384                                                     qla2x00_local_device_login(
2385                                                         ha, fcport);
2386
2387                                         fcport->login_retry--;
2388                                         if (status == QLA_SUCCESS) {
2389                                                 fcport->old_loop_id = fcport->loop_id;
2390
2391                                                 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2392                                                     ha->host_no, fcport->loop_id));
2393
2394                                                 qla2x00_update_fcport(ha,
2395                                                     fcport);
2396                                         } else if (status == 1) {
2397                                                 set_bit(RELOGIN_NEEDED, &ha->dpc_flags);
2398                                                 /* retry the login again */
2399                                                 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2400                                                     ha->host_no,
2401                                                     fcport->login_retry, fcport->loop_id));
2402                                         } else {
2403                                                 fcport->login_retry = 0;
2404                                         }
2405                                         if (fcport->login_retry == 0 && status != QLA_SUCCESS)
2406                                                 fcport->loop_id = FC_NO_LOOP_ID;
2407                                 }
2408                                 if (test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags))
2409                                         break;
2410                         }
2411                         DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2412                             ha->host_no));
2413                 }
2414
2415                 if (test_and_clear_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags)) {
2416
2417                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2418                             ha->host_no));
2419
2420                         if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE,
2421                             &ha->dpc_flags))) {
2422
2423                                 rval = qla2x00_loop_resync(ha);
2424
2425                                 clear_bit(LOOP_RESYNC_ACTIVE, &ha->dpc_flags);
2426                         }
2427
2428                         DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2429                             ha->host_no));
2430                 }
2431
2432                 if (test_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags) &&
2433                     atomic_read(&ha->loop_state) == LOOP_READY) {
2434                         clear_bit(NPIV_CONFIG_NEEDED, &ha->dpc_flags);
2435                         qla2xxx_flash_npiv_conf(ha);
2436                 }
2437
2438                 if (!ha->interrupts_on)
2439                         ha->isp_ops->enable_intrs(ha);
2440
2441                 if (test_and_clear_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags))
2442                         ha->isp_ops->beacon_blink(ha);
2443
2444                 qla2x00_do_dpc_all_vps(ha);
2445
2446                 ha->dpc_active = 0;
2447         } /* End of while(1) */
2448
2449         DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha->host_no));
2450
2451         /*
2452          * Make sure that nobody tries to wake us up again.
2453          */
2454         ha->dpc_active = 0;
2455
2456         return 0;
2457 }
2458
2459 void
2460 qla2xxx_wake_dpc(scsi_qla_host_t *ha)
2461 {
2462         struct task_struct *t = ha->dpc_thread;
2463
2464         if (!test_bit(UNLOADING, &ha->dpc_flags) && t)
2465                 wake_up_process(t);
2466 }
2467
2468 /*
2469 *  qla2x00_rst_aen
2470 *      Processes asynchronous reset.
2471 *
2472 * Input:
2473 *      ha  = adapter block pointer.
2474 */
2475 static void
2476 qla2x00_rst_aen(scsi_qla_host_t *ha)
2477 {
2478         if (ha->flags.online && !ha->flags.reset_active &&
2479             !atomic_read(&ha->loop_down_timer) &&
2480             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) {
2481                 do {
2482                         clear_bit(RESET_MARKER_NEEDED, &ha->dpc_flags);
2483
2484                         /*
2485                          * Issue marker command only when we are going to start
2486                          * the I/O.
2487                          */
2488                         ha->marker_needed = 1;
2489                 } while (!atomic_read(&ha->loop_down_timer) &&
2490                     (test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags)));
2491         }
2492 }
2493
2494 static void
2495 qla2x00_sp_free_dma(scsi_qla_host_t *ha, srb_t *sp)
2496 {
2497         struct scsi_cmnd *cmd = sp->cmd;
2498
2499         if (sp->flags & SRB_DMA_VALID) {
2500                 scsi_dma_unmap(cmd);
2501                 sp->flags &= ~SRB_DMA_VALID;
2502         }
2503         CMD_SP(cmd) = NULL;
2504 }
2505
2506 void
2507 qla2x00_sp_compl(scsi_qla_host_t *ha, srb_t *sp)
2508 {
2509         struct scsi_cmnd *cmd = sp->cmd;
2510
2511         qla2x00_sp_free_dma(ha, sp);
2512
2513         mempool_free(sp, ha->srb_mempool);
2514
2515         cmd->scsi_done(cmd);
2516 }
2517
2518 /**************************************************************************
2519 *   qla2x00_timer
2520 *
2521 * Description:
2522 *   One second timer
2523 *
2524 * Context: Interrupt
2525 ***************************************************************************/
2526 void
2527 qla2x00_timer(scsi_qla_host_t *ha)
2528 {
2529         unsigned long   cpu_flags = 0;
2530         fc_port_t       *fcport;
2531         int             start_dpc = 0;
2532         int             index;
2533         srb_t           *sp;
2534         int             t;
2535         scsi_qla_host_t *pha = to_qla_parent(ha);
2536
2537         /*
2538          * Ports - Port down timer.
2539          *
2540          * Whenever, a port is in the LOST state we start decrementing its port
2541          * down timer every second until it reaches zero. Once  it reaches zero
2542          * the port it marked DEAD.
2543          */
2544         t = 0;
2545         list_for_each_entry(fcport, &ha->fcports, list) {
2546                 if (fcport->port_type != FCT_TARGET)
2547                         continue;
2548
2549                 if (atomic_read(&fcport->state) == FCS_DEVICE_LOST) {
2550
2551                         if (atomic_read(&fcport->port_down_timer) == 0)
2552                                 continue;
2553
2554                         if (atomic_dec_and_test(&fcport->port_down_timer) != 0)
2555                                 atomic_set(&fcport->state, FCS_DEVICE_DEAD);
2556
2557                         DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2558                             "%d remaining\n",
2559                             ha->host_no,
2560                             t, atomic_read(&fcport->port_down_timer)));
2561                 }
2562                 t++;
2563         } /* End of for fcport  */
2564
2565
2566         /* Loop down handler. */
2567         if (atomic_read(&ha->loop_down_timer) > 0 &&
2568             !(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags)) && ha->flags.online) {
2569
2570                 if (atomic_read(&ha->loop_down_timer) ==
2571                     ha->loop_down_abort_time) {
2572
2573                         DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2574                             "queues before time expire\n",
2575                             ha->host_no));
2576
2577                         if (!IS_QLA2100(ha) && ha->link_down_timeout)
2578                                 atomic_set(&ha->loop_state, LOOP_DEAD);
2579
2580                         /* Schedule an ISP abort to return any tape commands. */
2581                         /* NPIV - scan physical port only */
2582                         if (!ha->parent) {
2583                                 spin_lock_irqsave(&ha->hardware_lock,
2584                                     cpu_flags);
2585                                 for (index = 1;
2586                                     index < MAX_OUTSTANDING_COMMANDS;
2587                                     index++) {
2588                                         fc_port_t *sfcp;
2589
2590                                         sp = ha->outstanding_cmds[index];
2591                                         if (!sp)
2592                                                 continue;
2593                                         sfcp = sp->fcport;
2594                                         if (!(sfcp->flags & FCF_TAPE_PRESENT))
2595                                                 continue;
2596
2597                                         set_bit(ISP_ABORT_NEEDED,
2598                                             &ha->dpc_flags);
2599                                         break;
2600                                 }
2601                                 spin_unlock_irqrestore(&ha->hardware_lock,
2602                                     cpu_flags);
2603                         }
2604                         set_bit(ABORT_QUEUES_NEEDED, &ha->dpc_flags);
2605                         start_dpc++;
2606                 }
2607
2608                 /* if the loop has been down for 4 minutes, reinit adapter */
2609                 if (atomic_dec_and_test(&ha->loop_down_timer) != 0) {
2610                         DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2611                             "restarting queues.\n",
2612                             ha->host_no));
2613
2614                         set_bit(RESTART_QUEUES_NEEDED, &ha->dpc_flags);
2615                         start_dpc++;
2616
2617                         if (!(ha->device_flags & DFLG_NO_CABLE) &&
2618                             !ha->parent) {
2619                                 DEBUG(printk("scsi(%ld): Loop down - "
2620                                     "aborting ISP.\n",
2621                                     ha->host_no));
2622                                 qla_printk(KERN_WARNING, ha,
2623                                     "Loop down - aborting ISP.\n");
2624
2625                                 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags);
2626                         }
2627                 }
2628                 DEBUG3(printk("scsi(%ld): Loop Down - seconds remaining %d\n",
2629                     ha->host_no,
2630                     atomic_read(&ha->loop_down_timer)));
2631         }
2632
2633         /* Check if beacon LED needs to be blinked */
2634         if (ha->beacon_blink_led == 1) {
2635                 set_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags);
2636                 start_dpc++;
2637         }
2638
2639         /* Process any deferred work. */
2640         if (!list_empty(&ha->work_list))
2641                 start_dpc++;
2642
2643         /* Schedule the DPC routine if needed */
2644         if ((test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags) ||
2645             test_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags) ||
2646             test_bit(FCPORT_UPDATE_NEEDED, &ha->dpc_flags) ||
2647             start_dpc ||
2648             test_bit(RESET_MARKER_NEEDED, &ha->dpc_flags) ||
2649             test_bit(BEACON_BLINK_NEEDED, &ha->dpc_flags) ||
2650             test_bit(VP_DPC_NEEDED, &ha->dpc_flags) ||
2651             test_bit(RELOGIN_NEEDED, &ha->dpc_flags)))
2652                 qla2xxx_wake_dpc(pha);
2653
2654         qla2x00_restart_timer(ha, WATCH_INTERVAL);
2655 }
2656
2657 /* Firmware interface routines. */
2658
2659 #define FW_BLOBS        6
2660 #define FW_ISP21XX      0
2661 #define FW_ISP22XX      1
2662 #define FW_ISP2300      2
2663 #define FW_ISP2322      3
2664 #define FW_ISP24XX      4
2665 #define FW_ISP25XX      5
2666
2667 #define FW_FILE_ISP21XX "ql2100_fw.bin"
2668 #define FW_FILE_ISP22XX "ql2200_fw.bin"
2669 #define FW_FILE_ISP2300 "ql2300_fw.bin"
2670 #define FW_FILE_ISP2322 "ql2322_fw.bin"
2671 #define FW_FILE_ISP24XX "ql2400_fw.bin"
2672 #define FW_FILE_ISP25XX "ql2500_fw.bin"
2673
2674 static DEFINE_MUTEX(qla_fw_lock);
2675
2676 static struct fw_blob qla_fw_blobs[FW_BLOBS] = {
2677         { .name = FW_FILE_ISP21XX, .segs = { 0x1000, 0 }, },
2678         { .name = FW_FILE_ISP22XX, .segs = { 0x1000, 0 }, },
2679         { .name = FW_FILE_ISP2300, .segs = { 0x800, 0 }, },
2680         { .name = FW_FILE_ISP2322, .segs = { 0x800, 0x1c000, 0x1e000, 0 }, },
2681         { .name = FW_FILE_ISP24XX, },
2682         { .name = FW_FILE_ISP25XX, },
2683 };
2684
2685 struct fw_blob *
2686 qla2x00_request_firmware(scsi_qla_host_t *ha)
2687 {
2688         struct fw_blob *blob;
2689
2690         blob = NULL;
2691         if (IS_QLA2100(ha)) {
2692                 blob = &qla_fw_blobs[FW_ISP21XX];
2693         } else if (IS_QLA2200(ha)) {
2694                 blob = &qla_fw_blobs[FW_ISP22XX];
2695         } else if (IS_QLA2300(ha) || IS_QLA2312(ha) || IS_QLA6312(ha)) {
2696                 blob = &qla_fw_blobs[FW_ISP2300];
2697         } else if (IS_QLA2322(ha) || IS_QLA6322(ha)) {
2698                 blob = &qla_fw_blobs[FW_ISP2322];
2699         } else if (IS_QLA24XX_TYPE(ha)) {
2700                 blob = &qla_fw_blobs[FW_ISP24XX];
2701         } else if (IS_QLA25XX(ha)) {
2702                 blob = &qla_fw_blobs[FW_ISP25XX];
2703         }
2704
2705         mutex_lock(&qla_fw_lock);
2706         if (blob->fw)
2707                 goto out;
2708
2709         if (request_firmware(&blob->fw, blob->name, &ha->pdev->dev)) {
2710                 DEBUG2(printk("scsi(%ld): Failed to load firmware image "
2711                     "(%s).\n", ha->host_no, blob->name));
2712                 blob->fw = NULL;
2713                 blob = NULL;
2714                 goto out;
2715         }
2716
2717 out:
2718         mutex_unlock(&qla_fw_lock);
2719         return blob;
2720 }
2721
2722 static void
2723 qla2x00_release_firmware(void)
2724 {
2725         int idx;
2726
2727         mutex_lock(&qla_fw_lock);
2728         for (idx = 0; idx < FW_BLOBS; idx++)
2729                 if (qla_fw_blobs[idx].fw)
2730                         release_firmware(qla_fw_blobs[idx].fw);
2731         mutex_unlock(&qla_fw_lock);
2732 }
2733
2734 static pci_ers_result_t
2735 qla2xxx_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state)
2736 {
2737         switch (state) {
2738         case pci_channel_io_normal:
2739                 return PCI_ERS_RESULT_CAN_RECOVER;
2740         case pci_channel_io_frozen:
2741                 pci_disable_device(pdev);
2742                 return PCI_ERS_RESULT_NEED_RESET;
2743         case pci_channel_io_perm_failure:
2744                 qla2x00_remove_one(pdev);
2745                 return PCI_ERS_RESULT_DISCONNECT;
2746         }
2747         return PCI_ERS_RESULT_NEED_RESET;
2748 }
2749
2750 static pci_ers_result_t
2751 qla2xxx_pci_mmio_enabled(struct pci_dev *pdev)
2752 {
2753         int risc_paused = 0;
2754         uint32_t stat;
2755         unsigned long flags;
2756         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2757         struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
2758         struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24;
2759
2760         spin_lock_irqsave(&ha->hardware_lock, flags);
2761         if (IS_QLA2100(ha) || IS_QLA2200(ha)){
2762                 stat = RD_REG_DWORD(&reg->hccr);
2763                 if (stat & HCCR_RISC_PAUSE)
2764                         risc_paused = 1;
2765         } else if (IS_QLA23XX(ha)) {
2766                 stat = RD_REG_DWORD(&reg->u.isp2300.host_status);
2767                 if (stat & HSR_RISC_PAUSED)
2768                         risc_paused = 1;
2769         } else if (IS_FWI2_CAPABLE(ha)) {
2770                 stat = RD_REG_DWORD(&reg24->host_status);
2771                 if (stat & HSRX_RISC_PAUSED)
2772                         risc_paused = 1;
2773         }
2774         spin_unlock_irqrestore(&ha->hardware_lock, flags);
2775
2776         if (risc_paused) {
2777                 qla_printk(KERN_INFO, ha, "RISC paused -- mmio_enabled, "
2778                     "Dumping firmware!\n");
2779                 ha->isp_ops->fw_dump(ha, 0);
2780
2781                 return PCI_ERS_RESULT_NEED_RESET;
2782         } else
2783                 return PCI_ERS_RESULT_RECOVERED;
2784 }
2785
2786 static pci_ers_result_t
2787 qla2xxx_pci_slot_reset(struct pci_dev *pdev)
2788 {
2789         pci_ers_result_t ret = PCI_ERS_RESULT_DISCONNECT;
2790         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2791         int rc;
2792
2793         if (ha->mem_only)
2794                 rc = pci_enable_device_mem(pdev);
2795         else
2796                 rc = pci_enable_device(pdev);
2797
2798         if (rc) {
2799                 qla_printk(KERN_WARNING, ha,
2800                     "Can't re-enable PCI device after reset.\n");
2801
2802                 return ret;
2803         }
2804         pci_set_master(pdev);
2805
2806         if (ha->isp_ops->pci_config(ha))
2807                 return ret;
2808
2809         set_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2810         if (qla2x00_abort_isp(ha)== QLA_SUCCESS)
2811                 ret =  PCI_ERS_RESULT_RECOVERED;
2812         clear_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags);
2813
2814         return ret;
2815 }
2816
2817 static void
2818 qla2xxx_pci_resume(struct pci_dev *pdev)
2819 {
2820         scsi_qla_host_t *ha = pci_get_drvdata(pdev);
2821         int ret;
2822
2823         ret = qla2x00_wait_for_hba_online(ha);
2824         if (ret != QLA_SUCCESS) {
2825                 qla_printk(KERN_ERR, ha,
2826                     "the device failed to resume I/O "
2827                     "from slot/link_reset");
2828         }
2829         pci_cleanup_aer_uncorrect_error_status(pdev);
2830 }
2831
2832 static struct pci_error_handlers qla2xxx_err_handler = {
2833         .error_detected = qla2xxx_pci_error_detected,
2834         .mmio_enabled = qla2xxx_pci_mmio_enabled,
2835         .slot_reset = qla2xxx_pci_slot_reset,
2836         .resume = qla2xxx_pci_resume,
2837 };
2838
2839 static struct pci_device_id qla2xxx_pci_tbl[] = {
2840         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2100) },
2841         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2200) },
2842         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2300) },
2843         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2312) },
2844         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2322) },
2845         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6312) },
2846         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP6322) },
2847         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2422) },
2848         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2432) },
2849         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP8432) },
2850         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5422) },
2851         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP5432) },
2852         { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP2532) },
2853         { 0 },
2854 };
2855 MODULE_DEVICE_TABLE(pci, qla2xxx_pci_tbl);
2856
2857 static struct pci_driver qla2xxx_pci_driver = {
2858         .name           = QLA2XXX_DRIVER_NAME,
2859         .driver         = {
2860                 .owner          = THIS_MODULE,
2861         },
2862         .id_table       = qla2xxx_pci_tbl,
2863         .probe          = qla2x00_probe_one,
2864         .remove         = qla2x00_remove_one,
2865         .err_handler    = &qla2xxx_err_handler,
2866 };
2867
2868 /**
2869  * qla2x00_module_init - Module initialization.
2870  **/
2871 static int __init
2872 qla2x00_module_init(void)
2873 {
2874         int ret = 0;
2875
2876         /* Allocate cache for SRBs. */
2877         srb_cachep = kmem_cache_create("qla2xxx_srbs", sizeof(srb_t), 0,
2878             SLAB_HWCACHE_ALIGN, NULL);
2879         if (srb_cachep == NULL) {
2880                 printk(KERN_ERR
2881                     "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2882                 return -ENOMEM;
2883         }
2884
2885         /* Derive version string. */
2886         strcpy(qla2x00_version_str, QLA2XXX_VERSION);
2887         if (ql2xextended_error_logging)
2888                 strcat(qla2x00_version_str, "-debug");
2889
2890         qla2xxx_transport_template =
2891             fc_attach_transport(&qla2xxx_transport_functions);
2892         if (!qla2xxx_transport_template) {
2893                 kmem_cache_destroy(srb_cachep);
2894                 return -ENODEV;
2895         }
2896         qla2xxx_transport_vport_template =
2897             fc_attach_transport(&qla2xxx_transport_vport_functions);
2898         if (!qla2xxx_transport_vport_template) {
2899                 kmem_cache_destroy(srb_cachep);
2900                 fc_release_transport(qla2xxx_transport_template);
2901                 return -ENODEV;
2902         }
2903
2904         printk(KERN_INFO "QLogic Fibre Channel HBA Driver: %s\n",
2905             qla2x00_version_str);
2906         ret = pci_register_driver(&qla2xxx_pci_driver);
2907         if (ret) {
2908                 kmem_cache_destroy(srb_cachep);
2909                 fc_release_transport(qla2xxx_transport_template);
2910                 fc_release_transport(qla2xxx_transport_vport_template);
2911         }
2912         return ret;
2913 }
2914
2915 /**
2916  * qla2x00_module_exit - Module cleanup.
2917  **/
2918 static void __exit
2919 qla2x00_module_exit(void)
2920 {
2921         pci_unregister_driver(&qla2xxx_pci_driver);
2922         qla2x00_release_firmware();
2923         kmem_cache_destroy(srb_cachep);
2924         fc_release_transport(qla2xxx_transport_template);
2925         fc_release_transport(qla2xxx_transport_vport_template);
2926 }
2927
2928 module_init(qla2x00_module_init);
2929 module_exit(qla2x00_module_exit);
2930
2931 MODULE_AUTHOR("QLogic Corporation");
2932 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2933 MODULE_LICENSE("GPL");
2934 MODULE_VERSION(QLA2XXX_VERSION);
2935 MODULE_FIRMWARE(FW_FILE_ISP21XX);
2936 MODULE_FIRMWARE(FW_FILE_ISP22XX);
2937 MODULE_FIRMWARE(FW_FILE_ISP2300);
2938 MODULE_FIRMWARE(FW_FILE_ISP2322);
2939 MODULE_FIRMWARE(FW_FILE_ISP24XX);
2940 MODULE_FIRMWARE(FW_FILE_ISP25XX);