[PATCH net-next v5 16/19] net/mlx5e: Configure PSP Rx flow steering rules
STALE435d
From: Daniel Zahka <daniel.zahka@gmail.com>
Date: 2025-07-23 20:35:15
Subsystem:
mellanox ethernet driver (mlx5e), mellanox ethernet innova drivers, mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v5 of 12 in this series.
Revisions (12)
From: Raed Salem <redacted>
Set the Rx PSP flow steering rule where PSP packet is identified and
decrypted using the dedicated UDP destination port number 1000. If packet
is decrypted then a PSP marker and syndrome are added to metadata so SW can
use it later on in Rx data path.
The rule is set as part of init_rx netdev profile implementation.
Signed-off-by: Raed Salem <redacted>
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Cosmin Ratiu <redacted>
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
---
Notes:
v1:
- https://lore.kernel.org/netdev/20240510030435.120935-14-kuba@kernel.org/ (local)
.../mellanox/mlx5/core/en_accel/en_accel.h | 14 +++++-
.../mellanox/mlx5/core/en_accel/psp_fs.c | 44 ++++++++++++++++---
.../mellanox/mlx5/core/en_accel/psp_fs.h | 7 +++
3 files changed, 59 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
index 86496e332b03..f1ff79c863d0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h@@ -237,12 +237,24 @@ static inline void mlx5e_accel_tx_finish(struct mlx5e_txqsq *sq, static inline int mlx5e_accel_init_rx(struct mlx5e_priv *priv) { - return mlx5e_ktls_init_rx(priv); + int err; + + err = mlx5_accel_psp_fs_init_rx_tables(priv); + if (err) + goto out; + + err = mlx5e_ktls_init_rx(priv); + if (err) + mlx5_accel_psp_fs_cleanup_rx_tables(priv); + +out: + return err; } static inline void mlx5e_accel_cleanup_rx(struct mlx5e_priv *priv) { mlx5e_ktls_cleanup_rx(priv); + mlx5_accel_psp_fs_cleanup_rx_tables(priv); } static inline int mlx5e_accel_init_tx(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.c
index 1d0da90d52ce..b044c475746e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.c@@ -468,9 +468,6 @@ static void accel_psp_fs_cleanup_rx(struct mlx5e_psp_fs *fs) if (!fs->rx_fs) return; - for (i = 0; i < ACCEL_FS_PSP_NUM_TYPES; i++) - accel_psp_fs_rx_ft_put(fs, i); - accel_psp = fs->rx_fs; for (i = 0; i < ACCEL_FS_PSP_NUM_TYPES; i++) { fs_prot = &accel_psp->fs_prot[i];
@@ -496,11 +493,48 @@ static int accel_psp_fs_init_rx(struct mlx5e_psp_fs *fs) mutex_init(&fs_prot->prot_mutex); } + fs->rx_fs = accel_psp; + + return 0; +} + +void mlx5_accel_psp_fs_cleanup_rx_tables(struct mlx5e_priv *priv) +{ + int i; + + if (!priv->psp) + return; + for (i = 0; i < ACCEL_FS_PSP_NUM_TYPES; i++) - accel_psp_fs_rx_ft_get(fs, ACCEL_FS_PSP4); + accel_psp_fs_rx_ft_put(priv->psp->fs, i); +} + +int mlx5_accel_psp_fs_init_rx_tables(struct mlx5e_priv *priv) +{ + enum accel_fs_psp_type i; + struct mlx5e_psp_fs *fs; + int err; + + if (!priv->psp) + return 0; + + fs = priv->psp->fs; + for (i = 0; i < ACCEL_FS_PSP_NUM_TYPES; i++) { + err = accel_psp_fs_rx_ft_get(fs, i); + if (err) + goto out_err; + } - fs->rx_fs = accel_psp; return 0; + +out_err: + i--; + while (i >= 0) { + accel_psp_fs_rx_ft_put(fs, i); + --i; + } + + return err; } static int accel_psp_fs_tx_create_ft_table(struct mlx5e_psp_fs *fs)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.h
index d81aeea43505..02215ea67a2d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp_fs.h@@ -12,6 +12,8 @@ struct mlx5e_psp_fs *mlx5e_accel_psp_fs_init(struct mlx5e_priv *priv); void mlx5e_accel_psp_fs_cleanup(struct mlx5e_psp_fs *fs); int mlx5_accel_psp_fs_init_tx_tables(struct mlx5e_priv *priv); void mlx5_accel_psp_fs_cleanup_tx_tables(struct mlx5e_priv *priv); +int mlx5_accel_psp_fs_init_rx_tables(struct mlx5e_priv *priv); +void mlx5_accel_psp_fs_cleanup_rx_tables(struct mlx5e_priv *priv); #else static inline int mlx5_accel_psp_fs_init_tx_tables(struct mlx5e_priv *priv) {
@@ -19,5 +21,10 @@ static inline int mlx5_accel_psp_fs_init_tx_tables(struct mlx5e_priv *priv) } static inline void mlx5_accel_psp_fs_cleanup_tx_tables(struct mlx5e_priv *priv) { } +static inline int mlx5_accel_psp_fs_init_rx_tables(struct mlx5e_priv *priv) +{ + return 0; +} +static inline void mlx5_accel_psp_fs_cleanup_rx_tables(struct mlx5e_priv *priv) { } #endif /* CONFIG_MLX5_EN_PSP */ #endif /* __MLX5_PSP_FS_H__ */
--
2.47.1