1 /* 2 * Copyright (c) 2018 Mellanox Technologies. All rights reserved. 3 * 4 * This software is available to you under a choice of one of two 5 * licenses. You may choose to be licensed under the terms of the GNU 6 * General Public License (GPL) Version 2, available from the file 7 * COPYING in the main directory of this source tree, or the 8 * OpenIB.org BSD license below: 9 * 10 * Redistribution and use in source and binary forms, with or 11 * without modification, are permitted provided that the following 12 * conditions are met: 13 * 14 * - Redistributions of source code must retain the above 15 * copyright notice, this list of conditions and the following 16 * disclaimer. 17 * 18 * - Redistributions in binary form must reproduce the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer in the documentation and/or other materials 21 * provided with the distribution. 22 * 23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 * SOFTWARE. 31 * 32 */ 33 34 #ifndef __MLX5E_EN_ACCEL_H__ 35 #define __MLX5E_EN_ACCEL_H__ 36 37 #include <linux/skbuff.h> 38 #include <linux/netdevice.h> 39 #include "en_accel/ipsec_rxtx.h" 40 #include "en_accel/tls_rxtx.h" 41 #include "en.h" 42 43 static inline void 44 mlx5e_udp_gso_handle_tx_skb(struct sk_buff *skb) 45 { 46 int payload_len = skb_shinfo(skb)->gso_size + sizeof(struct udphdr); 47 48 udp_hdr(skb)->len = htons(payload_len); 49 } 50 51 static inline struct sk_buff * 52 mlx5e_accel_handle_tx(struct sk_buff *skb, 53 struct mlx5e_txqsq *sq, 54 struct net_device *dev, 55 struct mlx5e_tx_wqe **wqe, 56 u16 *pi) 57 { 58 #ifdef CONFIG_MLX5_EN_TLS 59 if (test_bit(MLX5E_SQ_STATE_TLS, &sq->state)) { 60 skb = mlx5e_tls_handle_tx_skb(dev, sq, skb, wqe, pi); 61 if (unlikely(!skb)) 62 return NULL; 63 } 64 #endif 65 66 #ifdef CONFIG_MLX5_EN_IPSEC 67 if (test_bit(MLX5E_SQ_STATE_IPSEC, &sq->state)) { 68 skb = mlx5e_ipsec_handle_tx_skb(dev, *wqe, skb); 69 if (unlikely(!skb)) 70 return NULL; 71 } 72 #endif 73 74 if (skb_is_gso(skb) && skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) 75 mlx5e_udp_gso_handle_tx_skb(skb); 76 77 return skb; 78 } 79 80 #endif /* __MLX5E_EN_ACCEL_H__ */ 81