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| author | adam radford <aradford@gmail.com> | 2012-07-17 18:20:03 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-08-24 13:10:28 +0400 |
| commit | c5daa6a91984a296446b33d6e13ff802af9dc352 (patch) | |
| tree | 69fb1b4ef4107b4a19bf3bc4ed8e981425a50211 /drivers/scsi/megaraid/megaraid_sas.h | |
| parent | b5e5ddcdeee816053478e3fe1be7dc4ae65019d7 (diff) | |
| download | lwn-c5daa6a91984a296446b33d6e13ff802af9dc352.tar.gz lwn-c5daa6a91984a296446b33d6e13ff802af9dc352.zip | |
[SCSI] megaraid_sas: Add throttlequeuedepth module parameter
This allows a user to adjust the queue depth of the adapter when throttled due
to I/O timeout.
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/megaraid/megaraid_sas.h')
| -rw-r--r-- | drivers/scsi/megaraid/megaraid_sas.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h index e8f892647681..f65025d63bc8 100644 --- a/drivers/scsi/megaraid/megaraid_sas.h +++ b/drivers/scsi/megaraid/megaraid_sas.h @@ -747,6 +747,7 @@ struct megasas_ctrl_info { #define MEGASAS_RESET_NOTICE_INTERVAL 5 #define MEGASAS_IOCTL_CMD 0 #define MEGASAS_DEFAULT_CMD_TIMEOUT 90 +#define MEGASAS_THROTTLE_QUEUE_DEPTH 16 /* * FW reports the maximum of number of commands that it can accept (maximum @@ -1364,6 +1365,7 @@ struct megasas_instance { unsigned long bar; long reset_flags; struct mutex reset_mutex; + int throttlequeuedepth; }; enum { |