Commit 9123397a authored by Jesper Dangaard Brouer's avatar Jesper Dangaard Brouer Committed by Alexei Starovoitov
Browse files

mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type 



Update API for bpf_xdp_metadata_rx_hash() with arg for xdp rss hash type
via matching individual Completion Queue Entry (CQE) status bits.

Fixes: ab46182d ("net/mlx4_en: Support RX XDP metadata")
Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Acked-by: default avatarToke Høiland-Jørgensen <toke@redhat.com>
Acked-by: default avatarStanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/168132893562.340624.12779118462402031248.stgit@firesoul


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
parent 96b1a098

drivers/net/ethernet/mellanox/mlx4/en_rx.c

+18 −1
Original line number Diff line number Diff line
@@ -685,11 +685,28 @@ int mlx4_en_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, 
			enum xdp_rss_hash_type *rss_type)

{

	struct mlx4_en_xdp_buff *_ctx = (void *)ctx;

	struct mlx4_cqe *cqe = _ctx->cqe;

	enum xdp_rss_hash_type xht = 0;

	__be16 status;



	if (unlikely(!(_ctx->dev->features & NETIF_F_RXHASH)))

		return -ENODATA;



	*hash = be32_to_cpu(_ctx->cqe->immed_rss_invalid);

	*hash = be32_to_cpu(cqe->immed_rss_invalid);

	status = cqe->status;

	if (status & cpu_to_be16(MLX4_CQE_STATUS_TCP))

		xht = XDP_RSS_L4_TCP;

	if (status & cpu_to_be16(MLX4_CQE_STATUS_UDP))

		xht = XDP_RSS_L4_UDP;

	if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV4 | MLX4_CQE_STATUS_IPV4F))

		xht |= XDP_RSS_L3_IPV4;

	if (status & cpu_to_be16(MLX4_CQE_STATUS_IPV6)) {

		xht |= XDP_RSS_L3_IPV6;

		if (cqe->ipv6_ext_mask)

			xht |= XDP_RSS_L3_DYNHDR;

	}

	*rss_type = xht;



	return 0;

}