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| author | Kashyap, Desai <kashyap.desai@lsi.com> | 2010-06-17 13:28:55 +0530 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-07-27 12:02:06 -0500 |
| commit | d274213a1ae59e8abde8d43e1e3a478fe9f28794 (patch) | |
| tree | a13dcb559d8a444c862fd57bf0c114dd7425018a /drivers/scsi/mpt2sas/mpt2sas_base.h | |
| parent | ab6ce92541ea24c6a92be8498d7d1b26c14ec62d (diff) | |
| download | blackbird-obmc-linux-d274213a1ae59e8abde8d43e1e3a478fe9f28794.tar.gz blackbird-obmc-linux-d274213a1ae59e8abde8d43e1e3a478fe9f28794.zip | |
[SCSI] mpt2sas: Hold Controller reset when another reset is in progress
Driver should not allow multiple host reset when already host reset is in
progress. It is possible that host reset was sent by scsi mid layer while there was already an host reset active,
either issued via IOCTL interface or internaly, like a config page timeout.
Since there was a host reset active, the driver would return a FAILED response
to the scsi mid layer. The solution is make sure pending host resets will
wait for the active host reset to complete before returning control
back up the call stack.
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_base.h')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h index 0f41fcd4e52b..6032cbf31c7e 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.h +++ b/drivers/scsi/mpt2sas/mpt2sas_base.h @@ -600,9 +600,13 @@ struct MPT2SAS_ADAPTER { int aen_event_read_flag; u8 broadcast_aen_busy; u8 shost_recovery; + + struct mutex reset_in_progress_mutex; struct completion shost_recovery_done; spinlock_t ioc_reset_in_progress_lock; u8 ioc_link_reset_in_progress; + int ioc_reset_in_progress_status; + u8 ignore_loginfos; u8 remove_host; u8 wait_for_port_enable_to_complete; |
