[PATCH net-next v5.0 19/19] net/mlx5e: Implement PSP key_rotate operation
STALE438d
From: Daniel Zahka <daniel.zahka@gmail.com>
Date: 2025-07-23 20:35:44
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 11 in this series.
Revisions (11)
From: Raed Salem <redacted>
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 <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/20240510030435.120935-16-kuba@kernel.org/ (local)
.../net/ethernet/mellanox/mlx5/core/en_accel/psp.c | 11 +++++++++++
1 file changed, 11 insertions(+)
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 56f39f452bc8..406fe351cd28 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/psp.c@@ -82,11 +82,22 @@ static void mlx5e_psp_assoc_del(struct psp_dev *psd, struct psp_assoc *pas) atomic_dec(&psp->tx_key_cnt); } +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)
--
2.47.1