diff options
| author | Carolina Jubran <cjubran@nvidia.com> | 2025-09-11 10:10:19 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2025-09-17 04:38:10 -0400 |
| commit | 2ac207381c37eebc49559634ce5642119784bc7c (patch) | |
| tree | 11693479ab516193ca6b334ce498cf2b36d76d4c | |
| parent | cce65f32443b61db2370a67d2e92d16b773fe8a4 (diff) | |
net/mlx5e: Prevent WQE metadata conflicts between timestamping and offloads
Update the WQE metadata assignment to avoid overriding existing
metadata when setting the sysport timestamp ID. Since timestamp IDs are
limited to 256 values, they use only the lower 8 bits of the metadata
field.
To avoid conflicts, move IPsec and MACsec metadata ID to bits 8 and 9,
and shift the MACsec fs_id accordingly. This ensures safe coexistence
of timestamping and offload features that use the same metadata field.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757574619-604874-4-git-send-email-tariqt@nvidia.com
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_tx.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lib/macsec_fs.c | 2 | ||||
| -rw-r--r-- | include/linux/mlx5/qp.h | 5 |
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 319061d31602..6c55b67b7335 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -653,7 +653,7 @@ static void mlx5e_cqe_ts_id_eseg(struct mlx5e_ptpsq *ptpsq, struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg) { if (unlikely(skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP)) - eseg->flow_table_metadata = + eseg->flow_table_metadata |= cpu_to_be32(mlx5e_ptp_metadata_fifo_peek(&ptpsq->metadata_freelist)); } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/macsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/macsec_fs.c index 9ec450603176..e6be2f01daf4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lib/macsec_fs.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/macsec_fs.c @@ -2219,7 +2219,7 @@ static int mlx5_macsec_fs_add_roce_rule_tx(struct mlx5_macsec_fs *macsec_fs, u32 mlx5_macsec_fs_set_tx_fs_id(fs_id)); MLX5_SET(set_action_in, action, offset, MLX5_ETH_WQE_FT_META_MACSEC_SHIFT); - MLX5_SET(set_action_in, action, length, 32); + MLX5_SET(set_action_in, action, length, 8); modify_hdr = mlx5_modify_header_alloc(mdev, MLX5_FLOW_NAMESPACE_RDMA_TX_MACSEC, 1, action); diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h index b21be7630575..d67aedc6ea68 100644 --- a/include/linux/mlx5/qp.h +++ b/include/linux/mlx5/qp.h @@ -251,8 +251,9 @@ enum { MLX5_ETH_WQE_SWP_OUTER_L4_UDP = 1 << 5, }; -/* Base shift for metadata bits used by timestamping, IPsec, and MACsec */ -#define MLX5_ETH_WQE_FT_META_SHIFT 0 +/* Metadata bits 0-7 are used by timestamping */ +/* Base shift for metadata bits used by IPsec and MACsec */ +#define MLX5_ETH_WQE_FT_META_SHIFT 8 enum { MLX5_ETH_WQE_FT_META_IPSEC = BIT(0) << MLX5_ETH_WQE_FT_META_SHIFT, |