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authorAlexandre Bounine <alexandre.bounine@idt.com>2014-04-08 02:38:55 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-08 03:36:07 +0400
commit40f847baf50debfd42ad66f862bfcfea069ffbe7 (patch)
tree01c5e585f81aa6c9e3f43d99192c642a5538fe4c /drivers/sh
parent3f59b067c5140766591a64a3117d86978c57509b (diff)
downloadlinux-40f847baf50debfd42ad66f862bfcfea069ffbe7.tar.xz
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>
Diffstat (limited to 'drivers/sh')
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