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. Rana Shahout (1): net/mlx5e: XDP fast RX drop bpf programs support Saeed Mahameed (7): net/mlx5e: Build RX SKB on demand net/mlx5e: Union RQ RX info per RQ type net/mlx5e: Slightly reduce hardware LRO size net/mlx5e: Dynamic RQ type infrastructure net/mlx5e: Have a clear separation between different SQ types net/mlx5e: XDP TX forwarding support net/mlx5e: XDP TX xmit more drivers/net/ethernet/mellanox/mlx5/core/en.h | 69 ++- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 462 ++++++++++++++++----- drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 349 ++++++++++------ drivers/net/ethernet/mellanox/mlx5/core/en_stats.h | 12 + drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 63 ++- drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c | 65 ++- 6 files changed, 757 insertions(+), 263 deletions(-) -- 1.8.3.1
