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authorDavid S. Miller <davem@davemloft.net>2016-09-22 02:51:48 -0400
committerDavid S. Miller <davem@davemloft.net>2016-09-22 02:51:48 -0400
commitb80b8d7a974ea4888a0a598cec217a6c500a0cdb (patch)
treeeae31e97372200fe825241bba2481174730b3764 /net/sctp/transport.c
parentf9616c35a0d786bc64fff4bf819d1e4984873367 (diff)
parent35b510e257f7516546a0a3f725f71dfbccc3f733 (diff)
downloadlinux-b80b8d7a974ea4888a0a598cec217a6c500a0cdb.tar.bz2
Merge branch 'mlx5e-xdp'
Tariq Toukan says: ==================== mlx5e XDP support This series adds XDP support in mlx5e driver. This includes the use cases: XDP_DROP, XDP_PASS, and XDP_TX. Single stream performance tests show 16.5 Mpps for XDP_DROP, and 12.4 Mpps for XDP_TX, with nice scalability for multiple streams/rings. This rate of XDP_DROP is lower than the 32 Mpps we got in previous implementation, when Striding RQ was used. We moved to non-Striding RQ, as some XDP_TX requirements (like headroom, packet-per-page) cannot be satisfied with the current Striding RQ HW, and we decided to fully support both DROP/TX. Few directions are considered in order to enable the faster rate for XDP_DROP, e.g a possibility for users to enable Striding RQ so they choose optimized XDP_DROP on the price of partial XDP_TX functionality, or some HW changes. Series generated against net-next commit: cf714ac147e0 'ipvlan: Fix dependency issue' Thanks, Tariq V2: * patch 8: - when XDP_TX fails, call mlx5e_page_release and drop the packet. - update xdp_tx counter within mlx5e_xmit_xdp_frame. (mlx5e_xmit_xdp_frame return value becomes obsolete, change it to void) - drop the packet for unknown XDP return code. * patch 9: - use a boolean for xdp_doorbell in SQ struct, instead of dragging it throughout the functions calls. - handle doorbell and counters within mlx5e_xmit_xdp_frame. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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