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authorBart Van Assche <bvanassche@acm.org>2013-10-26 14:40:37 +0200
committerRoland Dreier <roland@purestorage.com>2013-11-08 14:43:17 -0800
commit4d73f95f708ce540a85113b00f5363d0593d871d (patch)
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parentb81d00bddfdccf000f29a5ba5bf7caa8f26fa00b (diff)
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IB/srp: Make queue size configurable
Certain storage configurations, e.g. a sufficiently large array of hard disks in a RAID configuration, need a queue depth above 64 to achieve optimal performance. Hence make the queue depth configurable. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Acked-by: David Dillow <dillowda@ornl.gov> Tested-by: Jack Wang <xjtuwjp@gmail.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/stable/sysfs-driver-ib_srp4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp
index b95067eb5f18..b9688de8455b 100644
--- a/Documentation/ABI/stable/sysfs-driver-ib_srp
+++ b/Documentation/ABI/stable/sysfs-driver-ib_srp
@@ -63,6 +63,10 @@ Description: Interface for making ib_srp connect to a new target.
over multiple CPU's.
* tl_retry_count, a number in the range 2..7 specifying the
IB RC retry count.
+ * queue_size, the maximum number of commands that the
+ initiator is allowed to queue per SCSI host. The default
+ value for this parameter is 62. The lowest supported value
+ is 2.
What: /sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
Date: January 2, 2006