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mlx5: implement VLAN tag XDP hint

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Implement the newly added .xmo_rx_vlan_tag() hint function.

Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com>
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Link: https://lore.kernel.org/r/20231205210847.28460-15-larysa.zaremba@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Larysa Zaremba 2023-12-05 22:08:43 +01:00 committed by Alexei Starovoitov
parent 537fec0733
commit 7978bad4b6
2 changed files with 16 additions and 1 deletions
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15
drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
View File

@ -256,9 +256,24 @@ static int mlx5e_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash,
return 0;
}
static int mlx5e_xdp_rx_vlan_tag(const struct xdp_md *ctx, __be16 *vlan_proto,
u16 *vlan_tci)
{
const struct mlx5e_xdp_buff *_ctx = (void *)ctx;
const struct mlx5_cqe64 *cqe = _ctx->cqe;
if (!cqe_has_vlan(cqe))
return -ENODATA;
*vlan_proto = htons(ETH_P_8021Q);
*vlan_tci = be16_to_cpu(cqe->vlan_info);
return 0;
}
const struct xdp_metadata_ops mlx5e_xdp_metadata_ops = {
.xmo_rx_timestamp = mlx5e_xdp_rx_timestamp,
.xmo_rx_hash = mlx5e_xdp_rx_hash,
.xmo_rx_vlan_tag = mlx5e_xdp_rx_vlan_tag,
};
struct mlx5e_xsk_tx_complete {

2
include/linux/mlx5/device.h
View File

@ -918,7 +918,7 @@ static inline u8 get_cqe_tls_offload(struct mlx5_cqe64 *cqe)
return (cqe->tls_outer_l3_tunneled >> 3) & 0x3;
}
static inline bool cqe_has_vlan(struct mlx5_cqe64 *cqe)
static inline bool cqe_has_vlan(const struct mlx5_cqe64 *cqe)
{
return cqe->l4_l3_hdr_type & 0x1;
}