tree 01c5e585f81aa6c9e3f43d99192c642a5538fe4c
parent 3f59b067c5140766591a64a3117d86978c57509b
author Alexandre Bounine <alexandre.bounine@idt.com> 1396910335 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1396913767 -0700

drivers/rapidio/devices/tsi721_dma.c: optimize use of BDMA descriptors

Combine SG entries describing single contiguous memory block into one
Tsi721 BDMA descriptor.  This reduces number of hardware descriptors
required for large data transfers and improves performance on the PCIe
side by reducing number of descriptor fetch requests.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>