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| author | Bart Van Assche <bvanassche@acm.org> | 2013-10-26 14:40:37 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-11-08 23:43:17 +0100 |
| commit | 4d73f95f708ce540a85113b00f5363d0593d871d (patch) | |
| tree | ffd6af3d00a9329a07a41abed801ccedef1285af /Documentation/ABI/stable | |
| parent | IB/srp: Introduce srp_alloc_req_data() (diff) | |
| download | linux-4d73f95f708ce540a85113b00f5363d0593d871d.tar.xz linux-4d73f95f708ce540a85113b00f5363d0593d871d.zip | |
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/stable')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-driver-ib_srp | 4 |
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 |