diff options
| author | Raed Salem <raeds@nvidia.com> | 2025-09-16 17:09:46 -0700 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-09-18 12:32:07 +0200 |
| commit | 411d9d33c8a2cf04a611cad948b24ed3f746230b (patch) | |
| tree | 565909ce7989288099ff9535a5f2ba993a141416 | |
| parent | 29d7f433fcec02cb1a98695a3562a05dd183b044 (diff) | |
net/mlx5e: Implement PSP key_rotate operation
Implement .key_rotate operation where when invoked will cause the HW to use
a new master key to derive PSP spi/key pairs with complience with PSP spec.
Signed-off-by: Raed Salem <raeds@nvidia.com>
Signed-off-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Daniel Zahka <daniel.zahka@gmail.com>
Link: https://patch.msgid.link/20250917000954.859376-20-daniel.zahka@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c index 372513edfb92..b4cb131c5f81 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c @@ -827,11 +827,34 @@ static void mlx5e_psp_assoc_del(struct psp_dev *psd, struct psp_assoc *pas) atomic_dec(&psp->tx_key_cnt); } +static int mlx5e_psp_rotate_key(struct mlx5_core_dev *mdev) +{ + u32 in[MLX5_ST_SZ_DW(psp_rotate_key_in)] = {}; + u32 out[MLX5_ST_SZ_DW(psp_rotate_key_out)]; + + MLX5_SET(psp_rotate_key_in, in, opcode, + MLX5_CMD_OP_PSP_ROTATE_KEY); + + return mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out)); +} + +static int +mlx5e_psp_key_rotate(struct psp_dev *psd, struct netlink_ext_ack *exack) +{ + struct mlx5e_priv *priv = netdev_priv(psd->main_netdev); + + /* no support for protecting against external rotations */ + psd->generation = 0; + + return mlx5e_psp_rotate_key(priv->mdev); +} + static struct psp_dev_ops mlx5_psp_ops = { .set_config = mlx5e_psp_set_config, .rx_spi_alloc = mlx5e_psp_rx_spi_alloc, .tx_key_add = mlx5e_psp_assoc_add, .tx_key_del = mlx5e_psp_assoc_del, + .key_rotate = mlx5e_psp_key_rotate, }; void mlx5e_psp_unregister(struct mlx5e_priv *priv) |