From 9879515895ffe46a424d00ad5ce92e32fd61790b Mon Sep 17 00:00:00 2001 From: Matthew Finlay Date: Mon, 22 Feb 2016 18:17:33 +0200 Subject: [PATCH] net/mlx5e: Add TX stateless offloads for tunneling Add support for TSO and TX checksum when using hw assisted, tunneled offloads. Signed-off-by: Matthew Finlay Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- .../net/ethernet/mellanox/mlx5/core/en_tx.c | 22 ++++++++++++++----- 1 file changed, 16 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 00d855ae03c2..6ce2884388cc 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -1,5 +1,5 @@ /* - * 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; - else + 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) { @@ -200,8 +205,13 @@ 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; - ihs = skb_transport_offset(skb) + tcp_hdrlen(skb); - payload_len = skb->len - ihs; + + 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; sq->stats.tso_packets++; -- 2.30.2