Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 98795158 authored by Matthew Finlay's avatar Matthew Finlay Committed by David S. Miller
Browse files

net/mlx5e: Add TX stateless offloads for tunneling 



Add support for TSO and TX checksum when using hw assisted,
tunneled offloads.

Signed-off-by: default avatarMatthew Finlay <matt@mellanox.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b3f63c3d

drivers/net/ethernet/mellanox/mlx5/core/en_tx.c

+16 −6
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2015, Mellanox Technologies. All rights reserved.

 * Copyright (c) 2015-2016, Mellanox Technologies. All rights reserved.

 *

 * This software is available to you under a choice of one of two

 * licenses.  You may choose to be licensed under the terms of the GNU
@@ -185,9 +185,14 @@ static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb) 


	memset(wqe, 0, sizeof(*wqe));



	if (likely(skb->ip_summed == CHECKSUM_PARTIAL))

		eseg->cs_flags	= MLX5_ETH_WQE_L3_CSUM | MLX5_ETH_WQE_L4_CSUM;

	if (likely(skb->ip_summed == CHECKSUM_PARTIAL)) {

		eseg->cs_flags = MLX5_ETH_WQE_L3_CSUM;

		if (skb->encapsulation)

			eseg->cs_flags |= MLX5_ETH_WQE_L3_INNER_CSUM |

					  MLX5_ETH_WQE_L4_INNER_CSUM;

		else

			eseg->cs_flags |= MLX5_ETH_WQE_L4_CSUM;

	} else

		sq->stats.csum_offload_none++;



	if (sq->cc != sq->prev_cc) {
@@ -200,7 +205,12 @@ static netdev_tx_t mlx5e_sq_xmit(struct mlx5e_sq *sq, struct sk_buff *skb) 


		eseg->mss    = cpu_to_be16(skb_shinfo(skb)->gso_size);

		opcode       = MLX5_OPCODE_LSO;



		if (skb->encapsulation)

			ihs = skb_inner_transport_offset(skb) + inner_tcp_hdrlen(skb);

		else

			ihs = skb_transport_offset(skb) + tcp_hdrlen(skb);



		payload_len   = skb->len - ihs;

		wi->num_bytes = skb->len +

				(skb_shinfo(skb)->gso_segs - 1) * ihs;