2 * QLOGIC LINUX SOFTWARE
4 * QLogic ISP2x00 device driver for Linux 2.6.x
5 * Copyright (C) 2003-2004 QLogic Corporation
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2, or (at your option) any
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
21 #include <linux/moduleparam.h>
22 #include <linux/vmalloc.h>
23 #include <linux/smp_lock.h>
24 #include <linux/delay.h>
26 #include <scsi/scsi_tcq.h>
27 #include <scsi/scsicam.h>
28 #include <scsi/scsi_transport.h>
29 #include <scsi/scsi_transport_fc.h>
34 char qla2x00_version_str
[40];
37 * SRB allocation cache
39 char srb_cachep_name
[16];
40 kmem_cache_t
*srb_cachep
;
43 * Stats for all adpaters.
45 struct _qla2x00stats qla2x00_stats
;
48 * Ioctl related information.
54 * Module parameter information and variables
57 module_param(ql2xmaxqdepth
, int, S_IRUGO
|S_IWUSR
);
58 MODULE_PARM_DESC(ql2xmaxqdepth
,
59 "Maximum queue depth to report for target devices.");
61 int ql2xlogintimeout
= 20;
62 module_param(ql2xlogintimeout
, int, S_IRUGO
|S_IRUSR
);
63 MODULE_PARM_DESC(ql2xlogintimeout
,
64 "Login timeout value in seconds.");
66 int qlport_down_retry
= 30;
67 module_param(qlport_down_retry
, int, S_IRUGO
|S_IRUSR
);
68 MODULE_PARM_DESC(qlport_down_retry
,
69 "Maximum number of command retries to a port that returns"
70 "a PORT-DOWN status.");
72 int ql2xretrycount
= 20;
73 module_param(ql2xretrycount
, int, S_IRUGO
|S_IWUSR
);
74 MODULE_PARM_DESC(ql2xretrycount
,
75 "Maximum number of mid-layer retries allowed for a command. "
76 "Default value is 20, ");
78 int ql2xplogiabsentdevice
;
79 module_param(ql2xplogiabsentdevice
, int, S_IRUGO
|S_IWUSR
);
80 MODULE_PARM_DESC(ql2xplogiabsentdevice
,
81 "Option to enable PLOGI to devices that are not present after "
82 "a Fabric scan. This is needed for several broken switches."
83 "Default is 0 - no PLOGI. 1 - perfom PLOGI.");
85 int ql2xenablezio
= 0;
86 module_param(ql2xenablezio
, int, S_IRUGO
|S_IRUSR
);
87 MODULE_PARM_DESC(ql2xenablezio
,
88 "Option to enable ZIO:If 1 then enable it otherwise"
89 " use the default set in the NVRAM."
90 " Default is 0 : disabled");
92 int ql2xintrdelaytimer
= 10;
93 module_param(ql2xintrdelaytimer
, int, S_IRUGO
|S_IRUSR
);
94 MODULE_PARM_DESC(ql2xintrdelaytimer
,
95 "ZIO: Waiting time for Firmware before it generates an "
96 "interrupt to the host to notify completion of request.");
99 module_param(ConfigRequired
, int, S_IRUGO
|S_IRUSR
);
100 MODULE_PARM_DESC(ConfigRequired
,
101 "If 1, then only configured devices passed in through the"
102 "ql2xopts parameter will be presented to the OS");
104 int Bind
= BIND_BY_PORT_NAME
;
105 module_param(Bind
, int, S_IRUGO
|S_IRUSR
);
106 MODULE_PARM_DESC(Bind
,
107 "Target persistent binding method: "
108 "0 by Portname (default); 1 by PortID; 2 by Nodename. ");
110 int ql2xsuspendcount
= SUSPEND_COUNT
;
111 module_param(ql2xsuspendcount
, int, S_IRUGO
|S_IWUSR
);
112 MODULE_PARM_DESC(ql2xsuspendcount
,
113 "Number of 6-second suspend iterations to perform while a "
114 "target returns a <NOT READY> status. Default is 10 "
117 int ql2xloginretrycount
= 0;
118 module_param(ql2xloginretrycount
, int, S_IRUGO
|S_IRUSR
);
119 MODULE_PARM_DESC(ql2xloginretrycount
,
120 "Specify an alternate value for the NVRAM login retry count.");
122 static void qla2x00_free_device(scsi_qla_host_t
*);
124 static void qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
);
127 * SCSI host template entry points
129 static int qla2xxx_slave_configure(struct scsi_device
* device
);
130 static int qla2xxx_slave_alloc(struct scsi_device
*);
131 static void qla2xxx_slave_destroy(struct scsi_device
*);
132 static int qla2x00_queuecommand(struct scsi_cmnd
*cmd
,
133 void (*fn
)(struct scsi_cmnd
*));
134 static int qla2xxx_eh_abort(struct scsi_cmnd
*);
135 static int qla2xxx_eh_device_reset(struct scsi_cmnd
*);
136 static int qla2xxx_eh_bus_reset(struct scsi_cmnd
*);
137 static int qla2xxx_eh_host_reset(struct scsi_cmnd
*);
138 static int qla2x00_loop_reset(scsi_qla_host_t
*ha
);
139 static int qla2x00_device_reset(scsi_qla_host_t
*, fc_port_t
*);
141 static struct scsi_host_template qla2x00_driver_template
= {
142 .module
= THIS_MODULE
,
144 .queuecommand
= qla2x00_queuecommand
,
146 .eh_abort_handler
= qla2xxx_eh_abort
,
147 .eh_device_reset_handler
= qla2xxx_eh_device_reset
,
148 .eh_bus_reset_handler
= qla2xxx_eh_bus_reset
,
149 .eh_host_reset_handler
= qla2xxx_eh_host_reset
,
151 .slave_configure
= qla2xxx_slave_configure
,
153 .slave_alloc
= qla2xxx_slave_alloc
,
154 .slave_destroy
= qla2xxx_slave_destroy
,
157 .use_clustering
= ENABLE_CLUSTERING
,
158 .sg_tablesize
= SG_ALL
,
161 * The RISC allows for each command to transfer (2^32-1) bytes of data,
162 * which equates to 0x800000 sectors.
164 .max_sectors
= 0xFFFF,
167 static struct scsi_transport_template
*qla2xxx_transport_template
= NULL
;
169 /* TODO Convert to inlines
173 #define WATCH_INTERVAL 1 /* number of seconds */
175 static void qla2x00_timer(scsi_qla_host_t
*);
177 static __inline__
void qla2x00_start_timer(scsi_qla_host_t
*,
178 void *, unsigned long);
179 static __inline__
void qla2x00_restart_timer(scsi_qla_host_t
*, unsigned long);
180 static __inline__
void qla2x00_stop_timer(scsi_qla_host_t
*);
183 qla2x00_start_timer(scsi_qla_host_t
*ha
, void *func
, unsigned long interval
)
185 init_timer(&ha
->timer
);
186 ha
->timer
.expires
= jiffies
+ interval
* HZ
;
187 ha
->timer
.data
= (unsigned long)ha
;
188 ha
->timer
.function
= (void (*)(unsigned long))func
;
189 add_timer(&ha
->timer
);
190 ha
->timer_active
= 1;
194 qla2x00_restart_timer(scsi_qla_host_t
*ha
, unsigned long interval
)
196 mod_timer(&ha
->timer
, jiffies
+ interval
* HZ
);
199 static __inline__
void
200 qla2x00_stop_timer(scsi_qla_host_t
*ha
)
202 del_timer_sync(&ha
->timer
);
203 ha
->timer_active
= 0;
206 static int qla2x00_do_dpc(void *data
);
208 static void qla2x00_rst_aen(scsi_qla_host_t
*);
210 static uint8_t qla2x00_mem_alloc(scsi_qla_host_t
*);
211 static void qla2x00_mem_free(scsi_qla_host_t
*ha
);
212 static int qla2x00_allocate_sp_pool( scsi_qla_host_t
*ha
);
213 static void qla2x00_free_sp_pool(scsi_qla_host_t
*ha
);
214 static srb_t
*qla2x00_get_new_sp(scsi_qla_host_t
*);
215 static void qla2x00_sp_free_dma(scsi_qla_host_t
*, srb_t
*);
216 void qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*);
218 /* -------------------------------------------------------------------------- */
221 qla2x00_get_pci_info_str(struct scsi_qla_host
*ha
, char *str
)
223 static char *pci_bus_modes
[] = {
224 "33", "66", "100", "133",
229 pci_bus
= (ha
->pci_attr
& (BIT_9
| BIT_10
)) >> 9;
232 strcat(str
, pci_bus_modes
[pci_bus
]);
234 pci_bus
= (ha
->pci_attr
& BIT_8
) >> 8;
236 strcat(str
, pci_bus_modes
[pci_bus
]);
238 strcat(str
, " MHz)");
244 qla2x00_get_fw_version_str(struct scsi_qla_host
*ha
, char *str
)
248 sprintf(str
, "%d.%02d.%02d ", ha
->fw_major_version
,
249 ha
->fw_minor_version
,
250 ha
->fw_subminor_version
);
252 if (ha
->fw_attributes
& BIT_9
) {
257 switch (ha
->fw_attributes
& 0xFF) {
271 sprintf(un_str
, "(%x)", ha
->fw_attributes
);
275 if (ha
->fw_attributes
& 0x100)
281 /**************************************************************************
282 * qla2x00_queuecommand
285 * Queue a command to the controller.
288 * cmd - pointer to Scsi cmd structure
289 * fn - pointer to Scsi done function
295 * The mid-level driver tries to ensures that queuecommand never gets invoked
296 * concurrently with itself or the interrupt handler (although the
297 * interrupt handler may call this routine as part of request-completion
299 **************************************************************************/
301 qla2x00_queuecommand(struct scsi_cmnd
*cmd
, void (*done
)(struct scsi_cmnd
*))
303 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
304 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
309 cmd
->result
= DID_NO_CONNECT
<< 16;
310 goto qc_fail_command
;
313 if (atomic_read(&fcport
->state
) != FCS_ONLINE
) {
314 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
||
315 atomic_read(&ha
->loop_state
) == LOOP_DEAD
) {
316 cmd
->result
= DID_NO_CONNECT
<< 16;
317 goto qc_fail_command
;
322 spin_unlock_irq(ha
->host
->host_lock
);
324 /* Allocate a command packet from the "sp" pool. */
325 if ((sp
= qla2x00_get_new_sp(ha
)) == NULL
) {
326 goto qc_host_busy_lock
;
335 CMD_SP(cmd
) = (void *)sp
;
336 cmd
->scsi_done
= done
;
338 rval
= qla2x00_start_scsi(sp
);
339 if (rval
!= QLA_SUCCESS
)
340 goto qc_host_busy_free_sp
;
342 /* Manage unprocessed RIO/ZIO commands in response queue. */
343 if (ha
->flags
.online
&& ha
->flags
.process_response_queue
&&
344 ha
->response_ring_ptr
->signature
!= RESPONSE_PROCESSED
) {
347 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
348 qla2x00_process_response_queue(ha
);
349 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
352 spin_lock_irq(ha
->host
->host_lock
);
356 qc_host_busy_free_sp
:
357 qla2x00_sp_free_dma(ha
, sp
);
359 mempool_free(sp
, ha
->srb_mempool
);
362 spin_lock_irq(ha
->host
->host_lock
);
365 return SCSI_MLQUEUE_HOST_BUSY
;
374 * qla2x00_eh_wait_on_command
375 * Waits for the command to be returned by the Firmware for some
379 * ha = actual ha whose done queue will contain the command
380 * returned by firmware.
381 * cmd = Scsi Command to wait on.
382 * flag = Abort/Reset(Bus or Device Reset)
389 qla2x00_eh_wait_on_command(scsi_qla_host_t
*ha
, struct scsi_cmnd
*cmd
)
391 #define ABORT_POLLING_PERIOD HZ
392 #define ABORT_WAIT_ITER ((10 * HZ) / (ABORT_POLLING_PERIOD))
393 unsigned long wait_iter
= ABORT_WAIT_ITER
;
394 int ret
= QLA_SUCCESS
;
396 while (CMD_SP(cmd
)) {
397 set_current_state(TASK_UNINTERRUPTIBLE
);
398 schedule_timeout(ABORT_POLLING_PERIOD
);
404 ret
= QLA_FUNCTION_FAILED
;
410 * qla2x00_wait_for_hba_online
411 * Wait till the HBA is online after going through
412 * <= MAX_RETRIES_OF_ISP_ABORT or
413 * finally HBA is disabled ie marked offline
416 * ha - pointer to host adapter structure
419 * Does context switching-Release SPIN_LOCK
420 * (if any) before calling this routine.
423 * Success (Adapter is online) : 0
424 * Failed (Adapter is offline/disabled) : 1
427 qla2x00_wait_for_hba_online(scsi_qla_host_t
*ha
)
430 unsigned long wait_online
;
432 wait_online
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
433 while (((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) ||
434 test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
) ||
435 test_bit(ISP_ABORT_RETRY
, &ha
->dpc_flags
) ||
436 ha
->dpc_active
) && time_before(jiffies
, wait_online
)) {
440 if (ha
->flags
.online
)
441 return_status
= QLA_SUCCESS
;
443 return_status
= QLA_FUNCTION_FAILED
;
445 DEBUG2(printk("%s return_status=%d\n",__func__
,return_status
));
447 return (return_status
);
451 * qla2x00_wait_for_loop_ready
452 * Wait for MAX_LOOP_TIMEOUT(5 min) value for loop
453 * to be in LOOP_READY state.
455 * ha - pointer to host adapter structure
458 * Does context switching-Release SPIN_LOCK
459 * (if any) before calling this routine.
463 * Success (LOOP_READY) : 0
464 * Failed (LOOP_NOT_READY) : 1
467 qla2x00_wait_for_loop_ready(scsi_qla_host_t
*ha
)
469 int return_status
= QLA_SUCCESS
;
470 unsigned long loop_timeout
;
472 /* wait for 5 min at the max for loop to be ready */
473 loop_timeout
= jiffies
+ (MAX_LOOP_TIMEOUT
* HZ
);
475 while ((!atomic_read(&ha
->loop_down_timer
) &&
476 atomic_read(&ha
->loop_state
) == LOOP_DOWN
) ||
477 test_bit(CFG_ACTIVE
, &ha
->cfg_flags
) ||
478 atomic_read(&ha
->loop_state
) != LOOP_READY
) {
480 if (time_after_eq(jiffies
, loop_timeout
)) {
481 return_status
= QLA_FUNCTION_FAILED
;
485 return (return_status
);
488 /**************************************************************************
492 * The abort function will abort the specified command.
495 * cmd = Linux SCSI command packet to be aborted.
498 * Either SUCCESS or FAILED.
501 **************************************************************************/
503 qla2xxx_eh_abort(struct scsi_cmnd
*cmd
)
505 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
508 unsigned int id
, lun
;
509 unsigned long serial
;
517 id
= cmd
->device
->id
;
518 lun
= cmd
->device
->lun
;
519 serial
= cmd
->serial_number
;
521 /* Check active list for command command. */
522 spin_unlock_irq(ha
->host
->host_lock
);
523 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
524 for (i
= 1; i
< MAX_OUTSTANDING_COMMANDS
; i
++) {
525 sp
= ha
->outstanding_cmds
[i
];
533 DEBUG2(printk("%s(%ld): aborting sp %p from RISC. pid=%ld "
534 "sp->state=%x\n", __func__
, ha
->host_no
, sp
, serial
,
536 DEBUG3(qla2x00_print_scsi_cmd(cmd
);)
538 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
539 if (qla2x00_abort_command(ha
, sp
)) {
540 DEBUG2(printk("%s(%ld): abort_command "
541 "mbx failed.\n", __func__
, ha
->host_no
));
543 DEBUG3(printk("%s(%ld): abort_command "
544 "mbx success.\n", __func__
, ha
->host_no
));
547 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
551 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
553 /* Wait for the command to be returned. */
554 if (ret
== SUCCESS
) {
555 if (qla2x00_eh_wait_on_command(ha
, cmd
) != QLA_SUCCESS
) {
556 qla_printk(KERN_ERR
, ha
,
557 "scsi(%ld:%d:%d): Abort handler timed out -- %lx "
558 "%x.\n", ha
->host_no
, id
, lun
, serial
, ret
);
561 spin_lock_irq(ha
->host
->host_lock
);
563 qla_printk(KERN_INFO
, ha
,
564 "scsi(%ld:%d:%d): Abort command issued -- %lx %x.\n", ha
->host_no
,
565 id
, lun
, serial
, ret
);
570 /**************************************************************************
571 * qla2x00_eh_wait_for_pending_target_commands
574 * Waits for all the commands to come back from the specified target.
577 * ha - pointer to scsi_qla_host structure.
580 * Either SUCCESS or FAILED.
583 **************************************************************************/
585 qla2x00_eh_wait_for_pending_target_commands(scsi_qla_host_t
*ha
, unsigned int t
)
590 struct scsi_cmnd
*cmd
;
596 * Waiting for all commands for the designated target in the active
599 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
600 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
601 sp
= ha
->outstanding_cmds
[cnt
];
604 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
605 if (cmd
->device
->id
== t
) {
606 if (!qla2x00_eh_wait_on_command(ha
, cmd
)) {
612 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
619 /**************************************************************************
620 * qla2xxx_eh_device_reset
623 * The device reset function will reset the target and abort any
624 * executing commands.
626 * NOTE: The use of SP is undefined within this context. Do *NOT*
627 * attempt to use this value, even if you determine it is
631 * cmd = Linux SCSI command packet of the command that cause the
635 * SUCCESS/FAILURE (defined as macro in scsi.h).
637 **************************************************************************/
639 qla2xxx_eh_device_reset(struct scsi_cmnd
*cmd
)
641 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
642 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
645 unsigned int id
, lun
;
646 unsigned long serial
;
650 id
= cmd
->device
->id
;
651 lun
= cmd
->device
->lun
;
652 serial
= cmd
->serial_number
;
654 sp
= (srb_t
*) CMD_SP(cmd
);
658 qla_printk(KERN_INFO
, ha
,
659 "scsi(%ld:%d:%d): DEVICE RESET ISSUED.\n", ha
->host_no
, id
, lun
);
661 spin_unlock_irq(ha
->host
->host_lock
);
663 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
) {
664 spin_lock_irq(ha
->host
->host_lock
);
665 goto eh_dev_reset_done
;
668 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
669 if (qla2x00_device_reset(ha
, fcport
) == 0)
672 #if defined(LOGOUT_AFTER_DEVICE_RESET)
673 if (ret
== SUCCESS
) {
674 if (fcport
->flags
& FC_FABRIC_DEVICE
) {
675 qla2x00_fabric_logout(ha
, fcport
->loop_id
);
676 qla2x00_mark_device_lost(ha
, fcport
);
681 DEBUG2(printk(KERN_INFO
682 "%s failed: loop not ready\n",__func__
);)
686 DEBUG3(printk("%s(%ld): device reset failed\n",
687 __func__
, ha
->host_no
));
688 qla_printk(KERN_INFO
, ha
, "%s: device reset failed\n",
691 goto eh_dev_reset_done
;
695 * If we are coming down the EH path, wait for all commands to
696 * complete for the device.
698 if (cmd
->device
->host
->eh_active
) {
699 if (qla2x00_eh_wait_for_pending_target_commands(ha
, id
))
703 DEBUG3(printk("%s(%ld): failed while waiting for "
704 "commands\n", __func__
, ha
->host_no
));
705 qla_printk(KERN_INFO
, ha
,
706 "%s: failed while waiting for commands\n",
709 goto eh_dev_reset_done
;
713 qla_printk(KERN_INFO
, ha
,
714 "scsi(%ld:%d:%d): DEVICE RESET SUCCEEDED.\n", ha
->host_no
, id
, lun
);
717 spin_lock_irq(ha
->host
->host_lock
);
722 /**************************************************************************
723 * qla2x00_eh_wait_for_pending_commands
726 * Waits for all the commands to come back from the specified host.
729 * ha - pointer to scsi_qla_host structure.
736 **************************************************************************/
738 qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t
*ha
)
743 struct scsi_cmnd
*cmd
;
749 * Waiting for all commands for the designated target in the active
752 for (cnt
= 1; cnt
< MAX_OUTSTANDING_COMMANDS
; cnt
++) {
753 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
754 sp
= ha
->outstanding_cmds
[cnt
];
757 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
758 status
= qla2x00_eh_wait_on_command(ha
, cmd
);
763 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
770 /**************************************************************************
771 * qla2xxx_eh_bus_reset
774 * The bus reset function will reset the bus and abort any executing
778 * cmd = Linux SCSI command packet of the command that cause the
782 * SUCCESS/FAILURE (defined as macro in scsi.h).
784 **************************************************************************/
786 qla2xxx_eh_bus_reset(struct scsi_cmnd
*cmd
)
788 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
789 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
792 unsigned int id
, lun
;
793 unsigned long serial
;
797 id
= cmd
->device
->id
;
798 lun
= cmd
->device
->lun
;
799 serial
= cmd
->serial_number
;
801 sp
= (srb_t
*) CMD_SP(cmd
);
805 qla_printk(KERN_INFO
, ha
,
806 "scsi(%ld:%d:%d): LOOP RESET ISSUED.\n", ha
->host_no
, id
, lun
);
808 spin_unlock_irq(ha
->host
->host_lock
);
810 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
) {
811 DEBUG2(printk("%s failed:board disabled\n",__func__
));
812 goto eh_bus_reset_done
;
815 if (qla2x00_wait_for_loop_ready(ha
) == QLA_SUCCESS
) {
816 if (qla2x00_loop_reset(ha
) == QLA_SUCCESS
)
820 goto eh_bus_reset_done
;
822 /* Waiting for our command in done_queue to be returned to OS.*/
823 if (cmd
->device
->host
->eh_active
)
824 if (!qla2x00_eh_wait_for_pending_commands(ha
))
828 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
829 (ret
== FAILED
) ? "failed" : "succeded");
831 spin_lock_irq(ha
->host
->host_lock
);
836 /**************************************************************************
837 * qla2xxx_eh_host_reset
840 * The reset function will reset the Adapter.
843 * cmd = Linux SCSI command packet of the command that cause the
847 * Either SUCCESS or FAILED.
850 **************************************************************************/
852 qla2xxx_eh_host_reset(struct scsi_cmnd
*cmd
)
854 scsi_qla_host_t
*ha
= to_qla_host(cmd
->device
->host
);
855 fc_port_t
*fcport
= (struct fc_port
*) cmd
->device
->hostdata
;
858 unsigned int id
, lun
;
859 unsigned long serial
;
863 id
= cmd
->device
->id
;
864 lun
= cmd
->device
->lun
;
865 serial
= cmd
->serial_number
;
867 sp
= (srb_t
*) CMD_SP(cmd
);
871 qla_printk(KERN_INFO
, ha
,
872 "scsi(%ld:%d:%d): ADAPTER RESET ISSUED.\n", ha
->host_no
, id
, lun
);
874 spin_unlock_irq(ha
->host
->host_lock
);
876 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
877 goto eh_host_reset_lock
;
880 * Fixme-may be dpc thread is active and processing
881 * loop_resync,so wait a while for it to
882 * be completed and then issue big hammer.Otherwise
883 * it may cause I/O failure as big hammer marks the
884 * devices as lost kicking of the port_down_timer
885 * while dpc is stuck for the mailbox to complete.
887 qla2x00_wait_for_loop_ready(ha
);
888 set_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
889 if (qla2x00_abort_isp(ha
)) {
890 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
891 /* failed. schedule dpc to try */
892 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
894 if (qla2x00_wait_for_hba_online(ha
) != QLA_SUCCESS
)
895 goto eh_host_reset_lock
;
897 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
899 /* Waiting for our command in done_queue to be returned to OS.*/
900 if (qla2x00_eh_wait_for_pending_commands(ha
))
904 spin_lock_irq(ha
->host
->host_lock
);
906 qla_printk(KERN_INFO
, ha
, "%s: reset %s\n", __func__
,
907 (ret
== FAILED
) ? "failed" : "succeded");
917 * ha = adapter block pointer.
923 qla2x00_loop_reset(scsi_qla_host_t
*ha
)
925 int status
= QLA_SUCCESS
;
926 struct fc_port
*fcport
;
928 if (ha
->flags
.enable_lip_reset
) {
929 status
= qla2x00_lip_reset(ha
);
932 if (status
== QLA_SUCCESS
&& ha
->flags
.enable_target_reset
) {
933 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
934 if (fcport
->port_type
!= FCT_TARGET
)
937 status
= qla2x00_target_reset(ha
, fcport
);
938 if (status
!= QLA_SUCCESS
)
943 if (status
== QLA_SUCCESS
&&
944 ((!ha
->flags
.enable_target_reset
&&
945 !ha
->flags
.enable_lip_reset
) ||
946 ha
->flags
.enable_lip_full_login
)) {
948 status
= qla2x00_full_login_lip(ha
);
951 /* Issue marker command only when we are going to start the I/O */
952 ha
->marker_needed
= 1;
956 DEBUG2_3(printk("%s(%ld): **** FAILED ****\n",
961 DEBUG3(printk("%s(%ld): exiting normally.\n",
970 * qla2x00_device_reset
971 * Issue bus device reset message to the target.
974 * ha = adapter block pointer.
976 * TARGET_QUEUE_LOCK must be released.
977 * ADAPTER_STATE_LOCK must be released.
983 qla2x00_device_reset(scsi_qla_host_t
*ha
, fc_port_t
*reset_fcport
)
985 /* Abort Target command will clear Reservation */
986 return qla2x00_abort_target(reset_fcport
);
990 qla2xxx_slave_alloc(struct scsi_device
*sdev
)
992 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
993 struct fc_rport
*rport
= starget_to_rport(scsi_target(sdev
));
1001 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1002 if (rport
->port_name
==
1003 be64_to_cpu(*(uint64_t *)fcport
->port_name
)) {
1011 sdev
->hostdata
= fcport
;
1017 qla2xxx_slave_configure(struct scsi_device
*sdev
)
1019 scsi_qla_host_t
*ha
= to_qla_host(sdev
->host
);
1020 struct fc_rport
*rport
= starget_to_rport(sdev
->sdev_target
);
1022 if (sdev
->tagged_supported
)
1023 scsi_activate_tcq(sdev
, 32);
1025 scsi_deactivate_tcq(sdev
, 32);
1027 rport
->dev_loss_tmo
= ha
->port_down_retry_count
+ 5;
1033 qla2xxx_slave_destroy(struct scsi_device
*sdev
)
1035 sdev
->hostdata
= NULL
;
1039 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
1042 * At exit, the @ha's flags.enable_64bit_addressing set to indicated
1043 * supported addressing method.
1046 qla2x00_config_dma_addressing(scsi_qla_host_t
*ha
)
1048 /* Assume 32bit DMA address */
1049 ha
->flags
.enable_64bit_addressing
= 0;
1050 ha
->calc_request_entries
= qla2x00_calc_iocbs_32
;
1051 ha
->build_scsi_iocbs
= qla2x00_build_scsi_iocbs_32
;
1054 * Given the two variants pci_set_dma_mask(), allow the compiler to
1055 * assist in setting the proper dma mask.
1057 if (sizeof(dma_addr_t
) > 4) {
1058 if (pci_set_dma_mask(ha
->pdev
, DMA_64BIT_MASK
) == 0) {
1059 ha
->flags
.enable_64bit_addressing
= 1;
1060 ha
->calc_request_entries
= qla2x00_calc_iocbs_64
;
1061 ha
->build_scsi_iocbs
= qla2x00_build_scsi_iocbs_64
;
1063 if (pci_set_consistent_dma_mask(ha
->pdev
,
1065 qla_printk(KERN_DEBUG
, ha
,
1066 "Failed to set 64 bit PCI consistent mask; "
1068 pci_set_consistent_dma_mask(ha
->pdev
,
1072 qla_printk(KERN_DEBUG
, ha
,
1073 "Failed to set 64 bit PCI DMA mask, falling back "
1074 "to 32 bit MASK.\n");
1075 pci_set_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1078 pci_set_dma_mask(ha
->pdev
, DMA_32BIT_MASK
);
1083 qla2x00_iospace_config(scsi_qla_host_t
*ha
)
1085 unsigned long pio
, pio_len
, pio_flags
;
1086 unsigned long mmio
, mmio_len
, mmio_flags
;
1088 /* We only need PIO for Flash operations on ISP2312 v2 chips. */
1089 pio
= pci_resource_start(ha
->pdev
, 0);
1090 pio_len
= pci_resource_len(ha
->pdev
, 0);
1091 pio_flags
= pci_resource_flags(ha
->pdev
, 0);
1092 if (pio_flags
& IORESOURCE_IO
) {
1093 if (pio_len
< MIN_IOBASE_LEN
) {
1094 qla_printk(KERN_WARNING
, ha
,
1095 "Invalid PCI I/O region size (%s)...\n",
1096 pci_name(ha
->pdev
));
1100 qla_printk(KERN_WARNING
, ha
,
1101 "region #0 not a PIO resource (%s)...\n",
1102 pci_name(ha
->pdev
));
1106 /* Use MMIO operations for all accesses. */
1107 mmio
= pci_resource_start(ha
->pdev
, 1);
1108 mmio_len
= pci_resource_len(ha
->pdev
, 1);
1109 mmio_flags
= pci_resource_flags(ha
->pdev
, 1);
1111 if (!(mmio_flags
& IORESOURCE_MEM
)) {
1112 qla_printk(KERN_ERR
, ha
,
1113 "region #0 not an MMIO resource (%s), aborting\n",
1114 pci_name(ha
->pdev
));
1115 goto iospace_error_exit
;
1117 if (mmio_len
< MIN_IOBASE_LEN
) {
1118 qla_printk(KERN_ERR
, ha
,
1119 "Invalid PCI mem region size (%s), aborting\n",
1120 pci_name(ha
->pdev
));
1121 goto iospace_error_exit
;
1124 if (pci_request_regions(ha
->pdev
, ha
->brd_info
->drv_name
)) {
1125 qla_printk(KERN_WARNING
, ha
,
1126 "Failed to reserve PIO/MMIO regions (%s)\n",
1127 pci_name(ha
->pdev
));
1129 goto iospace_error_exit
;
1132 ha
->pio_address
= pio
;
1133 ha
->pio_length
= pio_len
;
1134 ha
->iobase
= ioremap(mmio
, MIN_IOBASE_LEN
);
1136 qla_printk(KERN_ERR
, ha
,
1137 "cannot remap MMIO (%s), aborting\n", pci_name(ha
->pdev
));
1139 goto iospace_error_exit
;
1149 * PCI driver interface
1151 int qla2x00_probe_one(struct pci_dev
*pdev
, struct qla_board_info
*brd_info
)
1154 device_reg_t __iomem
*reg
;
1155 struct Scsi_Host
*host
;
1156 scsi_qla_host_t
*ha
;
1157 unsigned long flags
= 0;
1158 unsigned long wait_switch
= 0;
1163 if (pci_enable_device(pdev
))
1166 host
= scsi_host_alloc(&qla2x00_driver_template
,
1167 sizeof(scsi_qla_host_t
));
1170 "qla2xxx: Couldn't allocate host from scsi layer!\n");
1171 goto probe_disable_device
;
1174 /* Clear our data area */
1175 ha
= (scsi_qla_host_t
*)host
->hostdata
;
1176 memset(ha
, 0, sizeof(scsi_qla_host_t
));
1180 ha
->host_no
= host
->host_no
;
1181 ha
->brd_info
= brd_info
;
1182 sprintf(ha
->host_str
, "%s_%ld", ha
->brd_info
->drv_name
, ha
->host_no
);
1184 /* Configure PCI I/O space */
1185 ret
= qla2x00_iospace_config(ha
);
1187 goto probe_alloc_failed
;
1190 /* Sanitize the information from PCI BIOS. */
1191 host
->irq
= pdev
->irq
;
1193 qla_printk(KERN_INFO
, ha
,
1194 "Found an %s, irq %d, iobase 0x%p\n", ha
->brd_info
->isp_name
,
1195 host
->irq
, ha
->iobase
);
1197 spin_lock_init(&ha
->hardware_lock
);
1199 /* 4.23 Initialize /proc/scsi/qla2x00 counters */
1202 ha
->total_isr_cnt
= 0;
1203 ha
->total_isp_aborts
= 0;
1204 ha
->total_lip_cnt
= 0;
1205 ha
->total_dev_errs
= 0;
1207 ha
->total_bytes
= 0;
1209 ha
->prev_topology
= 0;
1210 ha
->ports
= MAX_BUSES
;
1212 if (IS_QLA2100(ha
)) {
1213 ha
->max_targets
= MAX_TARGETS_2100
;
1214 ha
->mbx_count
= MAILBOX_REGISTER_COUNT_2100
;
1215 ha
->request_q_length
= REQUEST_ENTRY_CNT_2100
;
1216 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1217 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1218 host
->sg_tablesize
= 32;
1219 } else if (IS_QLA2200(ha
)) {
1220 ha
->max_targets
= MAX_TARGETS_2200
;
1221 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1222 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1223 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2100
;
1224 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2100
;
1225 } else /*if (IS_QLA2300(ha))*/ {
1226 ha
->max_targets
= MAX_TARGETS_2200
;
1227 ha
->mbx_count
= MAILBOX_REGISTER_COUNT
;
1228 ha
->request_q_length
= REQUEST_ENTRY_CNT_2200
;
1229 ha
->response_q_length
= RESPONSE_ENTRY_CNT_2300
;
1230 ha
->last_loop_id
= SNS_LAST_LOOP_ID_2300
;
1232 host
->can_queue
= ha
->request_q_length
+ 128;
1234 /* load the F/W, read paramaters, and init the H/W */
1235 ha
->instance
= num_hosts
;
1237 init_MUTEX(&ha
->mbx_cmd_sem
);
1238 init_MUTEX_LOCKED(&ha
->mbx_intr_sem
);
1240 INIT_LIST_HEAD(&ha
->list
);
1241 INIT_LIST_HEAD(&ha
->fcports
);
1242 INIT_LIST_HEAD(&ha
->rscn_fcports
);
1245 * These locks are used to prevent more than one CPU
1246 * from modifying the queue at the same time. The
1247 * higher level "host_lock" will reduce most
1248 * contention for these locks.
1250 spin_lock_init(&ha
->mbx_reg_lock
);
1253 init_completion(&ha
->dpc_inited
);
1254 init_completion(&ha
->dpc_exited
);
1256 qla2x00_config_dma_addressing(ha
);
1257 if (qla2x00_mem_alloc(ha
)) {
1258 qla_printk(KERN_WARNING
, ha
,
1259 "[ERROR] Failed to allocate memory for adapter\n");
1261 goto probe_alloc_failed
;
1264 pci_set_drvdata(pdev
, ha
);
1265 host
->this_id
= 255;
1266 host
->cmd_per_lun
= 3;
1267 host
->unique_id
= ha
->instance
;
1268 host
->max_cmd_len
= MAX_CMDSZ
;
1269 host
->max_channel
= ha
->ports
- 1;
1270 host
->max_id
= ha
->max_targets
;
1271 host
->max_lun
= ha
->max_luns
;
1272 host
->transportt
= qla2xxx_transport_template
;
1273 if (scsi_add_host(host
, &pdev
->dev
))
1274 goto probe_alloc_failed
;
1276 qla2x00_alloc_sysfs_attr(ha
);
1278 if (qla2x00_initialize_adapter(ha
) &&
1279 !(ha
->device_flags
& DFLG_NO_CABLE
)) {
1281 qla_printk(KERN_WARNING
, ha
,
1282 "Failed to initialize adapter\n");
1284 DEBUG2(printk("scsi(%ld): Failed to initialize adapter - "
1285 "Adapter flags %x.\n",
1286 ha
->host_no
, ha
->device_flags
));
1291 qla2x00_init_host_attr(ha
);
1294 * Startup the kernel thread for this host adapter
1296 ha
->dpc_should_die
= 0;
1297 ha
->dpc_pid
= kernel_thread(qla2x00_do_dpc
, ha
, 0);
1298 if (ha
->dpc_pid
< 0) {
1299 qla_printk(KERN_WARNING
, ha
,
1300 "Unable to start DPC thread!\n");
1304 wait_for_completion(&ha
->dpc_inited
);
1306 if (IS_QLA2100(ha
) || IS_QLA2200(ha
))
1307 ret
= request_irq(host
->irq
, qla2100_intr_handler
,
1308 SA_INTERRUPT
|SA_SHIRQ
, ha
->brd_info
->drv_name
, ha
);
1310 ret
= request_irq(host
->irq
, qla2300_intr_handler
,
1311 SA_INTERRUPT
|SA_SHIRQ
, ha
->brd_info
->drv_name
, ha
);
1313 qla_printk(KERN_WARNING
, ha
,
1314 "Failed to reserve interrupt %d already in use.\n",
1319 /* Initialized the timer */
1320 qla2x00_start_timer(ha
, qla2x00_timer
, WATCH_INTERVAL
);
1322 DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
1327 /* Disable ISP interrupts. */
1328 qla2x00_disable_intrs(ha
);
1330 /* Ensure mailbox registers are free. */
1331 spin_lock_irqsave(&ha
->hardware_lock
, flags
);
1332 WRT_REG_WORD(®
->semaphore
, 0);
1333 WRT_REG_WORD(®
->hccr
, HCCR_CLR_RISC_INT
);
1334 WRT_REG_WORD(®
->hccr
, HCCR_CLR_HOST_INT
);
1336 /* Enable proper parity */
1337 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
)) {
1340 WRT_REG_WORD(®
->hccr
, (HCCR_ENABLE_PARITY
+ 0x1));
1342 /* SRAM, Instruction RAM and GP RAM parity */
1343 WRT_REG_WORD(®
->hccr
, (HCCR_ENABLE_PARITY
+ 0x7));
1345 spin_unlock_irqrestore(&ha
->hardware_lock
, flags
);
1347 /* Enable chip interrupts. */
1348 qla2x00_enable_intrs(ha
);
1352 * Wait around max loop_reset_delay secs for the devices to come
1353 * on-line. We don't want Linux scanning before we are ready.
1356 for (wait_switch
= jiffies
+ (ha
->loop_reset_delay
* HZ
);
1357 time_before(jiffies
,wait_switch
) &&
1358 !(ha
->device_flags
& (DFLG_NO_CABLE
| DFLG_FABRIC_DEVICES
))
1359 && (ha
->device_flags
& SWITCH_FOUND
) ;) {
1361 qla2x00_check_fabric_devices(ha
);
1366 ha
->flags
.init_done
= 1;
1369 qla_printk(KERN_INFO
, ha
, "\n"
1370 " QLogic Fibre Channel HBA Driver: %s\n"
1372 " %s: %s @ %s hdma%c, host#=%ld, fw=%s\n", qla2x00_version_str
,
1373 ha
->model_number
, ha
->model_desc
? ha
->model_desc
: "",
1374 ha
->brd_info
->isp_name
, qla2x00_get_pci_info_str(ha
, pci_info
),
1375 pci_name(ha
->pdev
), ha
->flags
.enable_64bit_addressing
? '+': '-',
1376 ha
->host_no
, qla2x00_get_fw_version_str(ha
, fw_str
));
1378 /* Go with fc_rport registration. */
1379 list_for_each_entry(fcport
, &ha
->fcports
, list
)
1380 qla2x00_reg_remote_port(ha
, fcport
);
1385 fc_remove_host(ha
->host
);
1387 scsi_remove_host(host
);
1390 qla2x00_free_device(ha
);
1392 scsi_host_put(host
);
1394 probe_disable_device
:
1395 pci_disable_device(pdev
);
1399 EXPORT_SYMBOL_GPL(qla2x00_probe_one
);
1401 void qla2x00_remove_one(struct pci_dev
*pdev
)
1403 scsi_qla_host_t
*ha
;
1405 ha
= pci_get_drvdata(pdev
);
1407 qla2x00_free_sysfs_attr(ha
);
1409 fc_remove_host(ha
->host
);
1411 scsi_remove_host(ha
->host
);
1413 qla2x00_free_device(ha
);
1415 scsi_host_put(ha
->host
);
1417 pci_set_drvdata(pdev
, NULL
);
1419 EXPORT_SYMBOL_GPL(qla2x00_remove_one
);
1422 qla2x00_free_device(scsi_qla_host_t
*ha
)
1426 /* Abort any outstanding IO descriptors. */
1427 if (!IS_QLA2100(ha
) && !IS_QLA2200(ha
))
1428 qla2x00_cancel_io_descriptors(ha
);
1430 /* turn-off interrupts on the card */
1431 if (ha
->interrupts_on
)
1432 qla2x00_disable_intrs(ha
);
1435 if (ha
->timer_active
)
1436 qla2x00_stop_timer(ha
);
1438 /* Kill the kernel thread for this host */
1439 if (ha
->dpc_pid
>= 0) {
1440 ha
->dpc_should_die
= 1;
1442 ret
= kill_proc(ha
->dpc_pid
, SIGHUP
, 1);
1444 qla_printk(KERN_ERR
, ha
,
1445 "Unable to signal DPC thread -- (%d)\n", ret
);
1447 /* TODO: SOMETHING MORE??? */
1449 wait_for_completion(&ha
->dpc_exited
);
1453 qla2x00_mem_free(ha
);
1456 ha
->flags
.online
= 0;
1458 /* Detach interrupts */
1460 free_irq(ha
->pdev
->irq
, ha
);
1462 /* release io space registers */
1464 iounmap(ha
->iobase
);
1465 pci_release_regions(ha
->pdev
);
1467 pci_disable_device(ha
->pdev
);
1471 * qla2x00_mark_device_lost Updates fcport state when device goes offline.
1473 * Input: ha = adapter block pointer. fcport = port structure pointer.
1479 void qla2x00_mark_device_lost(scsi_qla_host_t
*ha
, fc_port_t
*fcport
,
1482 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1483 fc_remote_port_block(fcport
->rport
);
1485 * We may need to retry the login, so don't change the state of the
1486 * port but do the retries.
1488 if (atomic_read(&fcport
->state
) != FCS_DEVICE_DEAD
)
1489 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1494 if (fcport
->login_retry
== 0) {
1495 fcport
->login_retry
= ha
->login_retry_count
;
1496 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
1498 DEBUG(printk("scsi(%ld): Port login retry: "
1499 "%02x%02x%02x%02x%02x%02x%02x%02x, "
1500 "id = 0x%04x retry cnt=%d\n",
1502 fcport
->port_name
[0],
1503 fcport
->port_name
[1],
1504 fcport
->port_name
[2],
1505 fcport
->port_name
[3],
1506 fcport
->port_name
[4],
1507 fcport
->port_name
[5],
1508 fcport
->port_name
[6],
1509 fcport
->port_name
[7],
1511 fcport
->login_retry
));
1516 * qla2x00_mark_all_devices_lost
1517 * Updates fcport state when device goes offline.
1520 * ha = adapter block pointer.
1521 * fcport = port structure pointer.
1529 qla2x00_mark_all_devices_lost(scsi_qla_host_t
*ha
)
1533 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
1534 if (fcport
->port_type
!= FCT_TARGET
)
1538 * No point in marking the device as lost, if the device is
1541 if (atomic_read(&fcport
->state
) == FCS_DEVICE_DEAD
)
1543 if (atomic_read(&fcport
->state
) == FCS_ONLINE
&& fcport
->rport
)
1544 fc_remote_port_block(fcport
->rport
);
1545 atomic_set(&fcport
->state
, FCS_DEVICE_LOST
);
1551 * Allocates adapter memory.
1558 qla2x00_mem_alloc(scsi_qla_host_t
*ha
)
1566 * This will loop only once if everything goes well, else some
1567 * number of retries will be performed to get around a kernel
1568 * bug where available mem is not allocated until after a
1569 * little delay and a retry.
1571 ha
->request_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1572 (ha
->request_q_length
+ 1) * sizeof(request_t
),
1573 &ha
->request_dma
, GFP_KERNEL
);
1574 if (ha
->request_ring
== NULL
) {
1575 qla_printk(KERN_WARNING
, ha
,
1576 "Memory Allocation failed - request_ring\n");
1578 qla2x00_mem_free(ha
);
1584 ha
->response_ring
= dma_alloc_coherent(&ha
->pdev
->dev
,
1585 (ha
->response_q_length
+ 1) * sizeof(response_t
),
1586 &ha
->response_dma
, GFP_KERNEL
);
1587 if (ha
->response_ring
== NULL
) {
1588 qla_printk(KERN_WARNING
, ha
,
1589 "Memory Allocation failed - response_ring\n");
1591 qla2x00_mem_free(ha
);
1597 ha
->gid_list
= dma_alloc_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
,
1598 &ha
->gid_list_dma
, GFP_KERNEL
);
1599 if (ha
->gid_list
== NULL
) {
1600 qla_printk(KERN_WARNING
, ha
,
1601 "Memory Allocation failed - gid_list\n");
1603 qla2x00_mem_free(ha
);
1609 ha
->rlc_rsp
= dma_alloc_coherent(&ha
->pdev
->dev
,
1610 sizeof(rpt_lun_cmd_rsp_t
), &ha
->rlc_rsp_dma
, GFP_KERNEL
);
1611 if (ha
->rlc_rsp
== NULL
) {
1612 qla_printk(KERN_WARNING
, ha
,
1613 "Memory Allocation failed - rlc");
1615 qla2x00_mem_free(ha
);
1621 snprintf(name
, sizeof(name
), "qla2xxx_%ld", ha
->host_no
);
1622 ha
->s_dma_pool
= dma_pool_create(name
, &ha
->pdev
->dev
,
1623 DMA_POOL_SIZE
, 8, 0);
1624 if (ha
->s_dma_pool
== NULL
) {
1625 qla_printk(KERN_WARNING
, ha
,
1626 "Memory Allocation failed - s_dma_pool\n");
1628 qla2x00_mem_free(ha
);
1634 /* get consistent memory allocated for init control block */
1635 ha
->init_cb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1637 if (ha
->init_cb
== NULL
) {
1638 qla_printk(KERN_WARNING
, ha
,
1639 "Memory Allocation failed - init_cb\n");
1641 qla2x00_mem_free(ha
);
1646 memset(ha
->init_cb
, 0, sizeof(init_cb_t
));
1648 /* Get consistent memory allocated for Get Port Database cmd */
1649 ha
->iodesc_pd
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1650 &ha
->iodesc_pd_dma
);
1651 if (ha
->iodesc_pd
== NULL
) {
1653 qla_printk(KERN_WARNING
, ha
,
1654 "Memory Allocation failed - iodesc_pd\n");
1656 qla2x00_mem_free(ha
);
1661 memset(ha
->iodesc_pd
, 0, PORT_DATABASE_SIZE
);
1663 /* Allocate ioctl related memory. */
1664 if (qla2x00_alloc_ioctl_mem(ha
)) {
1665 qla_printk(KERN_WARNING
, ha
,
1666 "Memory Allocation failed - ioctl_mem\n");
1668 qla2x00_mem_free(ha
);
1674 if (qla2x00_allocate_sp_pool(ha
)) {
1675 qla_printk(KERN_WARNING
, ha
,
1676 "Memory Allocation failed - "
1677 "qla2x00_allocate_sp_pool()\n");
1679 qla2x00_mem_free(ha
);
1685 /* Allocate memory for SNS commands */
1686 if (IS_QLA2100(ha
) || IS_QLA2200(ha
)) {
1687 /* Get consistent memory allocated for SNS commands */
1688 ha
->sns_cmd
= dma_alloc_coherent(&ha
->pdev
->dev
,
1689 sizeof(struct sns_cmd_pkt
), &ha
->sns_cmd_dma
,
1691 if (ha
->sns_cmd
== NULL
) {
1693 qla_printk(KERN_WARNING
, ha
,
1694 "Memory Allocation failed - sns_cmd\n");
1696 qla2x00_mem_free(ha
);
1701 memset(ha
->sns_cmd
, 0, sizeof(struct sns_cmd_pkt
));
1703 /* Get consistent memory allocated for MS IOCB */
1704 ha
->ms_iocb
= dma_pool_alloc(ha
->s_dma_pool
, GFP_KERNEL
,
1706 if (ha
->ms_iocb
== NULL
) {
1708 qla_printk(KERN_WARNING
, ha
,
1709 "Memory Allocation failed - ms_iocb\n");
1711 qla2x00_mem_free(ha
);
1716 memset(ha
->ms_iocb
, 0, sizeof(ms_iocb_entry_t
));
1719 * Get consistent memory allocated for CT SNS
1722 ha
->ct_sns
= dma_alloc_coherent(&ha
->pdev
->dev
,
1723 sizeof(struct ct_sns_pkt
), &ha
->ct_sns_dma
,
1725 if (ha
->ct_sns
== NULL
) {
1727 qla_printk(KERN_WARNING
, ha
,
1728 "Memory Allocation failed - ct_sns\n");
1730 qla2x00_mem_free(ha
);
1735 memset(ha
->ct_sns
, 0, sizeof(struct ct_sns_pkt
));
1738 /* Done all allocations without any error. */
1741 } while (retry
-- && status
!= 0);
1745 "%s(): **** FAILED ****\n", __func__
);
1753 * Frees all adapter allocated memory.
1756 * ha = adapter block pointer.
1759 qla2x00_mem_free(scsi_qla_host_t
*ha
)
1761 struct list_head
*fcpl
, *fcptemp
;
1763 unsigned long wtime
;/* max wait time if mbx cmd is busy. */
1767 DEBUG2(printk("%s(): ERROR invalid ha pointer.\n", __func__
));
1771 /* Make sure all other threads are stopped. */
1773 while (ha
->dpc_wait
&& wtime
) {
1774 set_current_state(TASK_INTERRUPTIBLE
);
1775 wtime
= schedule_timeout(wtime
);
1778 /* free ioctl memory */
1779 qla2x00_free_ioctl_mem(ha
);
1782 qla2x00_free_sp_pool(ha
);
1785 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct sns_cmd_pkt
),
1786 ha
->sns_cmd
, ha
->sns_cmd_dma
);
1789 dma_free_coherent(&ha
->pdev
->dev
, sizeof(struct ct_sns_pkt
),
1790 ha
->ct_sns
, ha
->ct_sns_dma
);
1793 dma_pool_free(ha
->s_dma_pool
, ha
->ms_iocb
, ha
->ms_iocb_dma
);
1796 dma_pool_free(ha
->s_dma_pool
, ha
->iodesc_pd
, ha
->iodesc_pd_dma
);
1799 dma_pool_free(ha
->s_dma_pool
, ha
->init_cb
, ha
->init_cb_dma
);
1802 dma_pool_destroy(ha
->s_dma_pool
);
1805 dma_free_coherent(&ha
->pdev
->dev
,
1806 sizeof(rpt_lun_cmd_rsp_t
), ha
->rlc_rsp
,
1810 dma_free_coherent(&ha
->pdev
->dev
, GID_LIST_SIZE
, ha
->gid_list
,
1813 if (ha
->response_ring
)
1814 dma_free_coherent(&ha
->pdev
->dev
,
1815 (ha
->response_q_length
+ 1) * sizeof(response_t
),
1816 ha
->response_ring
, ha
->response_dma
);
1818 if (ha
->request_ring
)
1819 dma_free_coherent(&ha
->pdev
->dev
,
1820 (ha
->request_q_length
+ 1) * sizeof(request_t
),
1821 ha
->request_ring
, ha
->request_dma
);
1824 ha
->sns_cmd_dma
= 0;
1828 ha
->ms_iocb_dma
= 0;
1829 ha
->iodesc_pd
= NULL
;
1830 ha
->iodesc_pd_dma
= 0;
1832 ha
->init_cb_dma
= 0;
1834 ha
->s_dma_pool
= NULL
;
1837 ha
->rlc_rsp_dma
= 0;
1838 ha
->gid_list
= NULL
;
1839 ha
->gid_list_dma
= 0;
1841 ha
->response_ring
= NULL
;
1842 ha
->response_dma
= 0;
1843 ha
->request_ring
= NULL
;
1844 ha
->request_dma
= 0;
1846 list_for_each_safe(fcpl
, fcptemp
, &ha
->fcports
) {
1847 fcport
= list_entry(fcpl
, fc_port_t
, list
);
1850 list_del_init(&fcport
->list
);
1853 INIT_LIST_HEAD(&ha
->fcports
);
1856 free_pages((unsigned long)ha
->fw_dump
, ha
->fw_dump_order
);
1858 if (ha
->fw_dump_buffer
)
1859 vfree(ha
->fw_dump_buffer
);
1862 ha
->fw_dump_reading
= 0;
1863 ha
->fw_dump_buffer
= NULL
;
1867 * qla2x00_allocate_sp_pool
1868 * This routine is called during initialization to allocate
1869 * memory for local srb_t.
1872 * ha = adapter block pointer.
1877 * Note: Sets the ref_count for non Null sp to one.
1880 qla2x00_allocate_sp_pool(scsi_qla_host_t
*ha
)
1885 ha
->srb_mempool
= mempool_create(SRB_MIN_REQ
, mempool_alloc_slab
,
1886 mempool_free_slab
, srb_cachep
);
1887 if (ha
->srb_mempool
== NULL
) {
1888 qla_printk(KERN_INFO
, ha
, "Unable to allocate SRB mempool.\n");
1889 rval
= QLA_FUNCTION_FAILED
;
1895 * This routine frees all adapter allocated memory.
1899 qla2x00_free_sp_pool( scsi_qla_host_t
*ha
)
1901 if (ha
->srb_mempool
) {
1902 mempool_destroy(ha
->srb_mempool
);
1903 ha
->srb_mempool
= NULL
;
1907 /**************************************************************************
1909 * This kernel thread is a task that is schedule by the interrupt handler
1910 * to perform the background processing for interrupts.
1913 * This task always run in the context of a kernel thread. It
1914 * is kick-off by the driver's detect code and starts up
1915 * up one per adapter. It immediately goes to sleep and waits for
1916 * some fibre event. When either the interrupt handler or
1917 * the timer routine detects a event it will one of the task
1918 * bits then wake us up.
1919 **************************************************************************/
1921 qla2x00_do_dpc(void *data
)
1923 DECLARE_MUTEX_LOCKED(sem
);
1924 scsi_qla_host_t
*ha
;
1927 uint16_t next_loopid
;
1929 ha
= (scsi_qla_host_t
*)data
;
1933 daemonize("%s_dpc", ha
->host_str
);
1934 allow_signal(SIGHUP
);
1936 ha
->dpc_wait
= &sem
;
1938 set_user_nice(current
, -20);
1942 complete(&ha
->dpc_inited
);
1945 DEBUG3(printk("qla2x00: DPC handler sleeping\n"));
1947 if (down_interruptible(&sem
))
1950 if (ha
->dpc_should_die
)
1953 DEBUG3(printk("qla2x00: DPC handler waking up\n"));
1955 /* Initialization not yet finished. Don't do anything yet. */
1956 if (!ha
->flags
.init_done
|| ha
->dpc_active
)
1959 DEBUG3(printk("scsi(%ld): DPC handler\n", ha
->host_no
));
1963 if (ha
->flags
.mbox_busy
) {
1968 if (test_and_clear_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
)) {
1970 DEBUG(printk("scsi(%ld): dpc: sched "
1971 "qla2x00_abort_isp ha = %p\n",
1973 if (!(test_and_set_bit(ABORT_ISP_ACTIVE
,
1976 if (qla2x00_abort_isp(ha
)) {
1977 /* failed. retry later */
1978 set_bit(ISP_ABORT_NEEDED
,
1981 clear_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
);
1983 DEBUG(printk("scsi(%ld): dpc: qla2x00_abort_isp end\n",
1987 if (test_and_clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) &&
1988 (!(test_and_set_bit(RESET_ACTIVE
, &ha
->dpc_flags
)))) {
1990 DEBUG(printk("scsi(%ld): qla2x00_reset_marker()\n",
1993 qla2x00_rst_aen(ha
);
1994 clear_bit(RESET_ACTIVE
, &ha
->dpc_flags
);
1997 /* Retry each device up to login retry count */
1998 if ((test_and_clear_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
1999 !test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) &&
2000 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2002 DEBUG(printk("scsi(%ld): qla2x00_port_login()\n",
2006 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2007 if (fcport
->port_type
!= FCT_TARGET
)
2011 * If the port is not ONLINE then try to login
2012 * to it if we haven't run out of retries.
2014 if (atomic_read(&fcport
->state
) != FCS_ONLINE
&&
2015 fcport
->login_retry
) {
2017 fcport
->login_retry
--;
2018 if (fcport
->flags
& FCF_FABRIC_DEVICE
) {
2021 qla2x00_fabric_logout(
2024 status
= qla2x00_fabric_login(
2025 ha
, fcport
, &next_loopid
);
2028 qla2x00_local_device_login(
2029 ha
, fcport
->loop_id
);
2031 if (status
== QLA_SUCCESS
) {
2032 fcport
->old_loop_id
= fcport
->loop_id
;
2034 DEBUG(printk("scsi(%ld): port login OK: logged in ID 0x%x\n",
2035 ha
->host_no
, fcport
->loop_id
));
2037 fcport
->port_login_retry_count
=
2038 ha
->port_down_retry_count
* PORT_RETRY_TIME
;
2039 atomic_set(&fcport
->state
, FCS_ONLINE
);
2040 atomic_set(&fcport
->port_down_timer
,
2041 ha
->port_down_retry_count
* PORT_RETRY_TIME
);
2043 fcport
->login_retry
= 0;
2044 } else if (status
== 1) {
2045 set_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
);
2046 /* retry the login again */
2047 DEBUG(printk("scsi(%ld): Retrying %d login again loop_id 0x%x\n",
2049 fcport
->login_retry
, fcport
->loop_id
));
2051 fcport
->login_retry
= 0;
2054 if (test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
))
2057 DEBUG(printk("scsi(%ld): qla2x00_port_login - end\n",
2061 if ((test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
)) &&
2062 atomic_read(&ha
->loop_state
) != LOOP_DOWN
) {
2064 clear_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
);
2065 DEBUG(printk("scsi(%ld): qla2x00_login_retry()\n",
2068 set_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
);
2070 DEBUG(printk("scsi(%ld): qla2x00_login_retry - end\n",
2074 if (test_and_clear_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
)) {
2076 DEBUG(printk("scsi(%ld): qla2x00_loop_resync()\n",
2079 if (!(test_and_set_bit(LOOP_RESYNC_ACTIVE
,
2082 qla2x00_loop_resync(ha
);
2084 clear_bit(LOOP_RESYNC_ACTIVE
, &ha
->dpc_flags
);
2087 DEBUG(printk("scsi(%ld): qla2x00_loop_resync - end\n",
2091 if (test_and_clear_bit(FCPORT_RESCAN_NEEDED
, &ha
->dpc_flags
)) {
2093 DEBUG(printk("scsi(%ld): Rescan flagged fcports...\n",
2096 qla2x00_rescan_fcports(ha
);
2098 DEBUG(printk("scsi(%ld): Rescan flagged fcports..."
2103 if (!ha
->interrupts_on
)
2104 qla2x00_enable_intrs(ha
);
2107 } /* End of while(1) */
2109 DEBUG(printk("scsi(%ld): DPC handler exiting\n", ha
->host_no
));
2112 * Make sure that nobody tries to wake us up again.
2114 ha
->dpc_wait
= NULL
;
2117 complete_and_exit(&ha
->dpc_exited
, 0);
2122 * Processes asynchronous reset.
2125 * ha = adapter block pointer.
2128 qla2x00_rst_aen(scsi_qla_host_t
*ha
)
2130 if (ha
->flags
.online
&& !ha
->flags
.reset_active
&&
2131 !atomic_read(&ha
->loop_down_timer
) &&
2132 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
))) {
2134 clear_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
);
2137 * Issue marker command only when we are going to start
2140 ha
->marker_needed
= 1;
2141 } while (!atomic_read(&ha
->loop_down_timer
) &&
2142 (test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
)));
2148 * This routine will allocate SP from the free queue
2155 qla2x00_get_new_sp(scsi_qla_host_t
*ha
)
2159 sp
= mempool_alloc(ha
->srb_mempool
, GFP_ATOMIC
);
2161 atomic_set(&sp
->ref_count
, 1);
2166 qla2x00_sp_free_dma(scsi_qla_host_t
*ha
, srb_t
*sp
)
2168 struct scsi_cmnd
*cmd
= sp
->cmd
;
2170 if (sp
->flags
& SRB_DMA_VALID
) {
2172 dma_unmap_sg(&ha
->pdev
->dev
, cmd
->request_buffer
,
2173 cmd
->use_sg
, cmd
->sc_data_direction
);
2174 } else if (cmd
->request_bufflen
) {
2175 dma_unmap_single(&ha
->pdev
->dev
, sp
->dma_handle
,
2176 cmd
->request_bufflen
, cmd
->sc_data_direction
);
2178 sp
->flags
&= ~SRB_DMA_VALID
;
2183 qla2x00_sp_compl(scsi_qla_host_t
*ha
, srb_t
*sp
)
2185 struct scsi_cmnd
*cmd
= sp
->cmd
;
2187 qla2x00_sp_free_dma(ha
, sp
);
2190 mempool_free(sp
, ha
->srb_mempool
);
2192 cmd
->scsi_done(cmd
);
2195 /**************************************************************************
2201 * Context: Interrupt
2202 ***************************************************************************/
2204 qla2x00_timer(scsi_qla_host_t
*ha
)
2206 unsigned long cpu_flags
= 0;
2214 * Ports - Port down timer.
2216 * Whenever, a port is in the LOST state we start decrementing its port
2217 * down timer every second until it reaches zero. Once it reaches zero
2218 * the port it marked DEAD.
2221 list_for_each_entry(fcport
, &ha
->fcports
, list
) {
2222 if (fcport
->port_type
!= FCT_TARGET
)
2225 if (atomic_read(&fcport
->state
) == FCS_DEVICE_LOST
) {
2227 if (atomic_read(&fcport
->port_down_timer
) == 0)
2230 if (atomic_dec_and_test(&fcport
->port_down_timer
) != 0)
2231 atomic_set(&fcport
->state
, FCS_DEVICE_DEAD
);
2233 DEBUG(printk("scsi(%ld): fcport-%d - port retry count: "
2236 t
, atomic_read(&fcport
->port_down_timer
)));
2239 } /* End of for fcport */
2242 /* Loop down handler. */
2243 if (atomic_read(&ha
->loop_down_timer
) > 0 &&
2244 !(test_bit(ABORT_ISP_ACTIVE
, &ha
->dpc_flags
)) && ha
->flags
.online
) {
2246 if (atomic_read(&ha
->loop_down_timer
) ==
2247 ha
->loop_down_abort_time
) {
2249 DEBUG(printk("scsi(%ld): Loop Down - aborting the "
2250 "queues before time expire\n",
2253 if (!IS_QLA2100(ha
) && ha
->link_down_timeout
)
2254 atomic_set(&ha
->loop_state
, LOOP_DEAD
);
2256 /* Schedule an ISP abort to return any tape commands. */
2257 spin_lock_irqsave(&ha
->hardware_lock
, cpu_flags
);
2258 for (index
= 1; index
< MAX_OUTSTANDING_COMMANDS
;
2262 sp
= ha
->outstanding_cmds
[index
];
2266 if (!(sfcp
->flags
& FCF_TAPE_PRESENT
))
2269 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2272 spin_unlock_irqrestore(&ha
->hardware_lock
, cpu_flags
);
2274 set_bit(ABORT_QUEUES_NEEDED
, &ha
->dpc_flags
);
2278 /* if the loop has been down for 4 minutes, reinit adapter */
2279 if (atomic_dec_and_test(&ha
->loop_down_timer
) != 0) {
2280 DEBUG(printk("scsi(%ld): Loop down exceed 4 mins - "
2281 "restarting queues.\n",
2284 set_bit(RESTART_QUEUES_NEEDED
, &ha
->dpc_flags
);
2287 if (!(ha
->device_flags
& DFLG_NO_CABLE
)) {
2288 DEBUG(printk("scsi(%ld): Loop down - "
2291 qla_printk(KERN_WARNING
, ha
,
2292 "Loop down - aborting ISP.\n");
2294 set_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
);
2297 DEBUG3(printk("scsi(%ld): Loop Down - seconds remainning %d\n",
2299 atomic_read(&ha
->loop_down_timer
)));
2302 /* Schedule the DPC routine if needed */
2303 if ((test_bit(ISP_ABORT_NEEDED
, &ha
->dpc_flags
) ||
2304 test_bit(LOOP_RESYNC_NEEDED
, &ha
->dpc_flags
) ||
2306 test_bit(LOGIN_RETRY_NEEDED
, &ha
->dpc_flags
) ||
2307 test_bit(RESET_MARKER_NEEDED
, &ha
->dpc_flags
) ||
2308 test_bit(RELOGIN_NEEDED
, &ha
->dpc_flags
)) &&
2309 ha
->dpc_wait
&& !ha
->dpc_active
) {
2314 qla2x00_restart_timer(ha
, WATCH_INTERVAL
);
2317 /* XXX(hch): crude hack to emulate a down_timeout() */
2319 qla2x00_down_timeout(struct semaphore
*sema
, unsigned long timeout
)
2321 const unsigned int step
= HZ
/10;
2324 if (!down_trylock(sema
))
2326 set_current_state(TASK_INTERRUPTIBLE
);
2327 if (schedule_timeout(step
))
2329 } while ((timeout
-= step
) > 0);
2335 * qla2x00_module_init - Module initialization.
2338 qla2x00_module_init(void)
2340 /* Allocate cache for SRBs. */
2341 sprintf(srb_cachep_name
, "qla2xxx_srbs");
2342 srb_cachep
= kmem_cache_create(srb_cachep_name
, sizeof(srb_t
), 0,
2343 SLAB_HWCACHE_ALIGN
, NULL
, NULL
);
2344 if (srb_cachep
== NULL
) {
2346 "qla2xxx: Unable to allocate SRB cache...Failing load!\n");
2350 /* Derive version string. */
2351 strcpy(qla2x00_version_str
, QLA2XXX_VERSION
);
2353 strcat(qla2x00_version_str
, "-debug");
2355 qla2xxx_transport_template
=
2356 fc_attach_transport(&qla2xxx_transport_functions
);
2357 if (!qla2xxx_transport_template
)
2360 printk(KERN_INFO
"QLogic Fibre Channel HBA Driver\n");
2365 * qla2x00_module_exit - Module cleanup.
2368 qla2x00_module_exit(void)
2370 /* Free SRBs cache. */
2371 if (srb_cachep
!= NULL
) {
2372 if (kmem_cache_destroy(srb_cachep
) != 0) {
2374 "qla2xxx: Unable to free SRB cache...Memory pools "
2380 fc_release_transport(qla2xxx_transport_template
);
2383 module_init(qla2x00_module_init
);
2384 module_exit(qla2x00_module_exit
);
2386 MODULE_AUTHOR("QLogic Corporation");
2387 MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver");
2388 MODULE_LICENSE("GPL");
2389 MODULE_VERSION(QLA2XXX_VERSION
);