developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 |
| 2 | * |
| 3 | * Copyright (c) 2019 MediaTek Inc. |
| 4 | * Author: Harry Huang <harry.huang@mediatek.com> |
| 5 | */ |
| 6 | |
| 7 | #include <linux/version.h> |
| 8 | #include <linux/module.h> |
| 9 | #include <linux/kernel.h> |
| 10 | #include <linux/types.h> |
| 11 | #include <linux/skbuff.h> |
| 12 | #include <net/ra_nat.h> |
| 13 | |
| 14 | struct net_device *dst_port[MAX_IF_NUM]; |
| 15 | EXPORT_SYMBOL(dst_port); |
| 16 | u8 dst_port_type[MAX_IF_NUM]; |
| 17 | EXPORT_SYMBOL(dst_port_type); |
| 18 | |
| 19 | struct foe_entry *ppe_virt_foe_base_tmp; |
| 20 | EXPORT_SYMBOL(ppe_virt_foe_base_tmp); |
| 21 | struct foe_entry *ppe1_virt_foe_base_tmp; |
| 22 | EXPORT_SYMBOL(ppe1_virt_foe_base_tmp); |
| 23 | |
| 24 | int (*ppe_hook_rx_wifi)(struct sk_buff *skb) = NULL; |
| 25 | EXPORT_SYMBOL(ppe_hook_rx_wifi); |
| 26 | int (*ppe_hook_tx_wifi)(struct sk_buff *skb, int gmac_no) = NULL; |
| 27 | EXPORT_SYMBOL(ppe_hook_tx_wifi); |
| 28 | |
| 29 | int (*ppe_hook_rx_modem)(struct sk_buff *skb, u32 cpu_reason, u32 foe_entry_num) = NULL; |
| 30 | EXPORT_SYMBOL(ppe_hook_rx_modem); |
| 31 | int (*ppe_hook_tx_modem)(struct sk_buff *skb, u32 net_type, u32 channel_id) = NULL; |
| 32 | EXPORT_SYMBOL(ppe_hook_tx_modem); |
| 33 | |
| 34 | int (*ppe_hook_rx_eth)(struct sk_buff *skb) = NULL; |
| 35 | EXPORT_SYMBOL(ppe_hook_rx_eth); |
| 36 | int (*ppe_hook_tx_eth)(struct sk_buff *skb, int gmac_no) = NULL; |
| 37 | EXPORT_SYMBOL(ppe_hook_tx_eth); |
| 38 | |
| 39 | int (*ppe_hook_rx_ext)(struct sk_buff *skb) = NULL; |
| 40 | EXPORT_SYMBOL(ppe_hook_rx_ext); |
| 41 | int (*ppe_hook_tx_ext)(struct sk_buff *skb, int gmac_no) = NULL; |
| 42 | EXPORT_SYMBOL(ppe_hook_tx_ext); |
| 43 | |
| 44 | void (*ppe_dev_register_hook)(struct net_device *dev) = NULL; |
| 45 | EXPORT_SYMBOL(ppe_dev_register_hook); |
| 46 | void (*ppe_dev_unregister_hook)(struct net_device *dev) = NULL; |
| 47 | EXPORT_SYMBOL(ppe_dev_unregister_hook); |
| 48 | |
| 49 | void hwnat_magic_tag_set_zero(struct sk_buff *skb) |
| 50 | { |
| 51 | if ((FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_PCI) || |
| 52 | (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_WLAN) || |
| 53 | (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_GE)) { |
| 54 | if (IS_SPACE_AVAILABLE_HEAD(skb)) |
| 55 | FOE_MAGIC_TAG_HEAD(skb) = 0; |
| 56 | } |
| 57 | if ((FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_PCI) || |
| 58 | (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_WLAN) || |
| 59 | (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_GE)) { |
| 60 | if (IS_SPACE_AVAILABLE_TAIL(skb)) |
| 61 | FOE_MAGIC_TAG_TAIL(skb) = 0; |
| 62 | } |
| 63 | } |
| 64 | EXPORT_SYMBOL(hwnat_magic_tag_set_zero); |
| 65 | |
| 66 | void hwnat_check_magic_tag(struct sk_buff *skb) |
| 67 | { |
| 68 | if (IS_SPACE_AVAILABLE_HEAD(skb)) { |
| 69 | FOE_MAGIC_TAG_HEAD(skb) = 0; |
| 70 | FOE_AI_HEAD(skb) = UN_HIT; |
| 71 | } |
| 72 | if (IS_SPACE_AVAILABLE_TAIL(skb)) { |
| 73 | FOE_MAGIC_TAG_TAIL(skb) = 0; |
| 74 | FOE_AI_TAIL(skb) = UN_HIT; |
| 75 | } |
| 76 | } |
| 77 | EXPORT_SYMBOL(hwnat_check_magic_tag); |
| 78 | |
| 79 | void hwnat_set_headroom_zero(struct sk_buff *skb) |
| 80 | { |
| 81 | if (skb->cloned != 1) { |
| 82 | if (IS_MAGIC_TAG_PROTECT_VALID_HEAD(skb) || |
| 83 | (FOE_MAGIC_TAG_HEAD(skb) == FOE_MAGIC_PPE)) { |
| 84 | if (IS_SPACE_AVAILABLE_HEAD(skb)) |
| 85 | memset(FOE_INFO_START_ADDR_HEAD(skb), 0, |
| 86 | FOE_INFO_LEN); |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | EXPORT_SYMBOL(hwnat_set_headroom_zero); |
| 91 | |
| 92 | void hwnat_set_tailroom_zero(struct sk_buff *skb) |
| 93 | { |
| 94 | if (skb->cloned != 1) { |
| 95 | if (IS_MAGIC_TAG_PROTECT_VALID_TAIL(skb) || |
| 96 | (FOE_MAGIC_TAG_TAIL(skb) == FOE_MAGIC_PPE)) { |
| 97 | if (IS_SPACE_AVAILABLE_TAIL(skb)) |
| 98 | memset(FOE_INFO_START_ADDR_TAIL(skb), 0, |
| 99 | FOE_INFO_LEN); |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | EXPORT_SYMBOL(hwnat_set_tailroom_zero); |
| 104 | |
| 105 | void hwnat_copy_headroom(u8 *data, struct sk_buff *skb) |
| 106 | { |
| 107 | memcpy(data, skb->head, FOE_INFO_LEN); |
| 108 | } |
| 109 | EXPORT_SYMBOL(hwnat_copy_headroom); |
| 110 | |
| 111 | void hwnat_copy_tailroom(u8 *data, int size, struct sk_buff *skb) |
| 112 | { |
| 113 | memcpy((data + size - FOE_INFO_LEN), |
| 114 | (skb_end_pointer(skb) - FOE_INFO_LEN), |
| 115 | FOE_INFO_LEN); |
| 116 | } |
| 117 | EXPORT_SYMBOL(hwnat_copy_tailroom); |
| 118 | |
| 119 | void hwnat_setup_dma_ops(struct device *dev, bool coherent) |
| 120 | { |
| 121 | arch_setup_dma_ops(dev, 0, 0, NULL, coherent); |
| 122 | } |
| 123 | EXPORT_SYMBOL(hwnat_setup_dma_ops); |
| 124 | |