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: 22da73492541 'net: r6040: add in missing white space in error message text' Thanks, Tariq 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 | 77 +++- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 462 ++++++++++++++++----- drivers/net/ethernet/mellanox/mlx5/core/en_rx.c | 381 +++++++++++------ 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, 784 insertions(+), 276 deletions(-) -- 1.8.3.1
