renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-19 18:53:52 +08:00
Code

[SCSI] qla2xxx: Stall mid-layer error handlers while rport is blocked.

Browse Source 
Stall error handler if attempting recovery while an rport is
blocked.  This avoids device offline scenarios due to errors in
the error handler.

Reference implementation from lpfc/mptfc.

Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Andrew Vasquez 2006-10-02 12:00:49 -07:00 committed by James Bottomley
parent bb8ee49984
commit 07db518313
1 changed files with 25 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/scsi/qla2xxx/qla_os.c
View File

@ -589,6 +589,23 @@ qla2x00_wait_for_loop_ready(scsi_qla_host_t *ha)
return (return_status);
}
static void
qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
unsigned long flags;
spin_lock_irqsave(shost->host_lock, flags);
while (rport->port_state == FC_PORTSTATE_BLOCKED) {
spin_unlock_irqrestore(shost->host_lock, flags);
msleep(1000);
spin_lock_irqsave(shost->host_lock, flags);
}
spin_unlock_irqrestore(shost->host_lock, flags);
return;
}
/**************************************************************************
* qla2xxx_eh_abort
*
@ -615,6 +632,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
unsigned long flags;
int wait = 0;
qla2x00_block_error_handler(cmd);
if (!CMD_SP(cmd))
return SUCCESS;
@ -748,6 +767,8 @@ qla2xxx_eh_device_reset(struct scsi_cmnd *cmd)
unsigned int id, lun;
unsigned long serial;
qla2x00_block_error_handler(cmd);
ret = FAILED;
id = cmd->device->id;
@ -877,6 +898,8 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
unsigned int id, lun;
unsigned long serial;
qla2x00_block_error_handler(cmd);
ret = FAILED;
id = cmd->device->id;
@ -936,6 +959,8 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
unsigned int id, lun;
unsigned long serial;
qla2x00_block_error_handler(cmd);
ret = FAILED;
id = cmd->device->id;