return -EINVAL;
}
if (x->props.flags & XFRM_STATE_ESN &&
- !(mlx5_ipsec_device_caps(priv->mdev) & MLX5_ACCEL_IPSEC_CAP_ESN)) {
+ !(mlx5_ipsec_device_caps(priv->mdev) & MLX5_IPSEC_CAP_ESN)) {
netdev_info(netdev, "Cannot offload ESN xfrm states\n");
return -EINVAL;
}
netdev_info(netdev, "Cannot offload xfrm states with geniv other than seqiv\n");
return -EINVAL;
}
- if (x->props.family == AF_INET6 &&
- !(mlx5_ipsec_device_caps(priv->mdev) & MLX5_ACCEL_IPSEC_CAP_IPV6)) {
- netdev_info(netdev, "IPv6 xfrm state offload is not supported by this device\n");
- return -EINVAL;
- }
return 0;
}
if (!mlx5_ipsec_device_caps(mdev))
return;
- if (!(mlx5_ipsec_device_caps(mdev) & MLX5_ACCEL_IPSEC_CAP_ESP) ||
- !MLX5_CAP_ETH(mdev, swp)) {
- mlx5_core_dbg(mdev, "mlx5e: ESP and SWP offload not supported\n");
- return;
- }
-
mlx5_core_info(mdev, "mlx5e: IPSec ESP acceleration enabled\n");
netdev->xfrmdev_ops = &mlx5e_ipsec_xfrmdev_ops;
netdev->features |= NETIF_F_HW_ESP;
netdev->features |= NETIF_F_HW_ESP_TX_CSUM;
netdev->hw_enc_features |= NETIF_F_HW_ESP_TX_CSUM;
- if (!(mlx5_ipsec_device_caps(mdev) & MLX5_ACCEL_IPSEC_CAP_LSO) ||
- !MLX5_CAP_ETH(mdev, swp_lso)) {
+ if (!MLX5_CAP_ETH(mdev, swp_lso)) {
mlx5_core_dbg(mdev, "mlx5e: ESP LSO not supported\n");
return;
}
u8 is_ipv6;
};
-enum mlx5_accel_ipsec_cap {
- MLX5_ACCEL_IPSEC_CAP_DEVICE = 1 << 0,
- MLX5_ACCEL_IPSEC_CAP_ESP = 1 << 1,
- MLX5_ACCEL_IPSEC_CAP_IPV6 = 1 << 2,
- MLX5_ACCEL_IPSEC_CAP_LSO = 1 << 3,
- MLX5_ACCEL_IPSEC_CAP_ESN = 1 << 4,
+enum mlx5_ipsec_cap {
+ MLX5_IPSEC_CAP_CRYPTO = 1 << 0,
+ MLX5_IPSEC_CAP_ESN = 1 << 1,
};
struct mlx5e_priv;
u32 mlx5_ipsec_device_caps(struct mlx5_core_dev *mdev)
{
- u32 caps;
+ u32 caps = 0;
if (!MLX5_CAP_GEN(mdev, ipsec_offload))
return 0;
MLX5_HCA_CAP_GENERAL_OBJECT_TYPES_IPSEC))
return 0;
- if (!MLX5_CAP_IPSEC(mdev, ipsec_crypto_offload) ||
- !MLX5_CAP_ETH(mdev, insert_trailer))
- return 0;
-
if (!MLX5_CAP_FLOWTABLE_NIC_TX(mdev, ipsec_encrypt) ||
!MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ipsec_decrypt))
return 0;
- caps = MLX5_ACCEL_IPSEC_CAP_DEVICE | MLX5_ACCEL_IPSEC_CAP_IPV6 |
- MLX5_ACCEL_IPSEC_CAP_LSO;
+ if (!MLX5_CAP_IPSEC(mdev, ipsec_crypto_esp_aes_gcm_128_encrypt) ||
+ !MLX5_CAP_IPSEC(mdev, ipsec_crypto_esp_aes_gcm_128_decrypt))
+ return 0;
- if (MLX5_CAP_IPSEC(mdev, ipsec_crypto_esp_aes_gcm_128_encrypt) &&
- MLX5_CAP_IPSEC(mdev, ipsec_crypto_esp_aes_gcm_128_decrypt))
- caps |= MLX5_ACCEL_IPSEC_CAP_ESP;
+ if (MLX5_CAP_IPSEC(mdev, ipsec_crypto_offload) &&
+ MLX5_CAP_ETH(mdev, insert_trailer) && MLX5_CAP_ETH(mdev, swp))
+ caps |= MLX5_IPSEC_CAP_CRYPTO;
+
+ if (!caps)
+ return 0;
if (MLX5_CAP_IPSEC(mdev, ipsec_esn))
- caps |= MLX5_ACCEL_IPSEC_CAP_ESN;
+ caps |= MLX5_IPSEC_CAP_ESN;
/* We can accommodate up to 2^24 different IPsec objects
* because we use up to 24 bit in flow table metadata