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authorAlexandre Bounine <alexandre.bounine@idt.com>2014-04-07 15:38:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-07 16:36:07 -0700
commit40f847baf50debfd42ad66f862bfcfea069ffbe7 (patch)
tree01c5e585f81aa6c9e3f43d99192c642a5538fe4c /Documentation/rapidio
parent3f59b067c5140766591a64a3117d86978c57509b (diff)
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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>
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