tree f2782dbae6b0b7c184ba37f6323f4092af5e8224
parent 3cd8ddbd86e4ea6f2f6582da217651f048d76130
author Tejun Heo <tj@kernel.org> 1224912414 +0900
committer Jeff Garzik <jgarzik@redhat.com> 1225166127 -0400

sata_sil24: configure max read request size to 4k

Due to request posting limitations, bandwidth of sil3132 is limited to
around 120MB/s with the minimum pci-e payload size (128bytes) which is
used by most consumer systems.  However, write throughput can be
slightly (~3%) increased by increasing the max read requeset size.
Configure it to 4k which is the maximum supported.  This optimization
is also done by SIMG's windows driver.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>