yonatanc cee2688e3c IB/rxe: Offload CRC calculation when possible ... Use CPU ability to perform CRC calculations, by replacing direct calls to crc32_le() with crypto_shash_updata(). The overall performance gain measured with ib_send_bw tool is 10% and it was tested on "Intel CPU ES-2660 v2 @ 2.20Ghz" CPU. ib_send_bw -d rxe0 -x 1 -n 9000 -e -s $((1024 * 1024 )) -l 100 --------------------------------------------------------------------------------------------- | | bytes | iterations | BW peak[MB/sec] | BW average[MB/sec] | MsgRate[Mpps] | --------------------------------------------------------------------------------------------- | crc32_le | 1048576 | 9000 | inf | 497.60 | 0.000498 | | CRC offload | 1048576 | 9000 | inf | 546.70 | 0.000547 | --------------------------------------------------------------------------------------------- Fixes: 8700e3e7c4 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>		2017-04-21 10:45:02 -04:00
..
rdmavt	Merge branch 'k.o/for-4.12' into k.o/for-4.12-rdma-netdevice	2017-04-20 12:00:41 -04:00
rxe	IB/rxe: Offload CRC calculation when possible	2017-04-21 10:45:02 -04:00
Makefile	Soft RoCE driver	2016-08-04 11:13:12 -04:00