github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-29 17:43:52 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

mlx4: bpf_xdp_metadata_rx_hash add xdp rss hash type

Browse Source 
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: ab46182d0d ("net/mlx4_en: Support RX XDP metadata")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/168132893562.340624.12779118462402031248.stgit@firesoul
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jesper Dangaard Brouer 2023-04-12 21:48:55 +02:00 committed by Alexei Starovoitov
parent 96b1a098f3
commit 9123397aee
1 changed files with 18 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/ethernet/mellanox/mlx4/en_rx.c
View File

@ -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;
}