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net/mlx5e: Store replay window in XFRM attributes

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As a preparation for future extension of IPsec hardware object to allow
configuration of packet offload mode, extend the XFRM validator to check
replay window values.

Reviewed-by: Raed Salem <raeds@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
This commit is contained in:
Leon Romanovsky 2022-12-02 22:10:25 +02:00 committed by Steffen Klassert
parent 59592cfdf8
commit cded6d8012
2 changed files with 13 additions and 0 deletions
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12
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
View file

@ -166,6 +166,7 @@ mlx5e_ipsec_build_accel_xfrm_attrs(struct mlx5e_ipsec_sa_entry *sa_entry,
attrs->esn = sa_entry->esn_state.esn;
if (sa_entry->esn_state.overlap)
attrs->flags |= MLX5_ACCEL_ESP_FLAGS_ESN_STATE_OVERLAP;
attrs->replay_window = x->replay_esn->replay_window;
}
/* action */
@ -257,6 +258,17 @@ static inline int mlx5e_xfrm_validate_state(struct xfrm_state *x)
netdev_info(netdev, "Unsupported xfrm offload type\n");
return -EINVAL;
}
if (x->xso.type == XFRM_DEV_OFFLOAD_PACKET) {
if (x->replay_esn && x->replay_esn->replay_window != 32 &&
x->replay_esn->replay_window != 64 &&
x->replay_esn->replay_window != 128 &&
x->replay_esn->replay_window != 256) {
netdev_info(netdev,
"Unsupported replay window size %u\n",
x->replay_esn->replay_window);
return -EINVAL;
}
}
return 0;
}

1
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.h
View file

@ -83,6 +83,7 @@ struct mlx5_accel_esp_xfrm_attrs {
} daddr;
u8 is_ipv6;
u32 replay_window;
};
enum mlx5_ipsec_cap {