netdev - [net-next 06/13] net/mlx5e: Update UDP fields of the SKB for GSO first

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Date:   Sat,  9 May 2020 01:28:49 -0700
From:   Saeed Mahameed <saeedm@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>, kuba@...nel.org
Cc:     netdev@...r.kernel.org, Maxim Mikityanskiy <maximmi@...lanox.com>,
        Raed Salem <raeds@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>
Subject: [net-next 06/13] net/mlx5e: Update UDP fields of the SKB for GSO first

From: Maxim Mikityanskiy <maximmi@...lanox.com>

mlx5e_udp_gso_handle_tx_skb updates the length field in the UDP header
in case of GSO. It doesn't interfere with other offloads, so do it first
to simplify further restructuring of the code. This way we'll make all
independent modifications to the SKB before starting to work with WQEs.

Signed-off-by: Maxim Mikityanskiy <maximmi@...lanox.com>
Reviewed-by: Raed Salem <raeds@...lanox.com>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
 .../net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h   | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
index 66bfab021d6b..d286fb09955c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
@@ -110,7 +110,12 @@ static inline bool mlx5e_accel_handle_tx(struct sk_buff *skb,
 {
 #ifdef CONFIG_MLX5_EN_TLS
 	u32 tls_tisn = 0;
+#endif
+
+	if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
+		mlx5e_udp_gso_handle_tx_skb(skb);
 
+#ifdef CONFIG_MLX5_EN_TLS
 	if (test_bit(MLX5E_SQ_STATE_TLS, &sq->state)) {
 		/* May send SKBs and WQEs. */
 		if (unlikely(!mlx5e_tls_handle_tx_skb(dev, sq, skb, &tls_tisn)))
@@ -130,9 +135,6 @@ static inline bool mlx5e_accel_handle_tx(struct sk_buff *skb,
 	}
 #endif
 
-	if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4)
-		mlx5e_udp_gso_handle_tx_skb(skb);
-
 	return true;
 }
 
-- 
2.25.4