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
mlx5e_udp_gso_handle_tx_skb(struct sk_buff * skb)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 *
mlx5e_accel_handle_tx(struct sk_buff * skb,struct mlx5e_txqsq * sq,struct net_device * dev,struct mlx5e_tx_wqe ** wqe,u16 * pi)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
