netdev - [PATCH v2 net-next 15/18] net/mlx5e: TLS, build TLS netdev from capabilities

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Date:   Sun,  8 Jul 2018 12:36:29 +0300
From:   Boris Pismenny <borisp@...lanox.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, davejwatson@...com, aviadye@...lanox.com,
        borisp@...lanox.com, saeedm@...lanox.com
Subject: [PATCH v2 net-next 15/18] net/mlx5e: TLS, build TLS netdev from capabilities

This patch enables TLS Rx based on available HW capabilities.

Signed-off-by: Boris Pismenny <borisp@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
index 7f26869..66b642a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
@@ -182,13 +182,27 @@ static void mlx5e_tls_resync_rx(struct net_device *netdev, struct sock *sk,
 
 void mlx5e_tls_build_netdev(struct mlx5e_priv *priv)
 {
+	u32 caps = mlx5_accel_tls_device_caps(priv->mdev);
 	struct net_device *netdev = priv->netdev;
 
 	if (!mlx5_accel_is_tls_device(priv->mdev))
 		return;
 
-	netdev->features |= NETIF_F_HW_TLS_TX;
-	netdev->hw_features |= NETIF_F_HW_TLS_TX;
+	if (caps & MLX5_ACCEL_TLS_TX) {
+		netdev->features          |= NETIF_F_HW_TLS_TX;
+		netdev->hw_features       |= NETIF_F_HW_TLS_TX;
+	}
+
+	if (caps & MLX5_ACCEL_TLS_RX) {
+		netdev->features          |= NETIF_F_HW_TLS_RX;
+		netdev->hw_features       |= NETIF_F_HW_TLS_RX;
+	}
+
+	if (!(caps & MLX5_ACCEL_TLS_LRO)) {
+		netdev->features          &= ~NETIF_F_LRO;
+		netdev->hw_features       &= ~NETIF_F_LRO;
+	}
+
 	netdev->tlsdev_ops = &mlx5e_tls_ops;
 }
 
-- 
1.8.3.1