| #ifndef __MLX5E_ACCEL_H__ |
| #define __MLX5E_ACCEL_H__ |
| |
| #ifdef CONFIG_MLX5_ACCEL |
| |
| #include <linux/skbuff.h> |
| #include <linux/netdevice.h> |
| #include "en.h" |
| |
| static inline bool is_metadata_hdr_valid(struct sk_buff *skb) |
| { |
| __be16 *ethtype; |
| |
| if (unlikely(skb->len < ETH_HLEN + MLX5E_METADATA_ETHER_LEN)) |
| return false; |
| ethtype = (__be16 *)(skb->data + ETH_ALEN * 2); |
| if (*ethtype != cpu_to_be16(MLX5E_METADATA_ETHER_TYPE)) |
| return false; |
| return true; |
| } |
| |
| static inline void remove_metadata_hdr(struct sk_buff *skb) |
| { |
| struct ethhdr *old_eth; |
| struct ethhdr *new_eth; |
| |
| /* Remove the metadata from the buffer */ |
| old_eth = (struct ethhdr *)skb->data; |
| new_eth = (struct ethhdr *)(skb->data + MLX5E_METADATA_ETHER_LEN); |
| memmove(new_eth, old_eth, 2 * ETH_ALEN); |
| /* Ethertype is already in its new place */ |
| skb_pull_inline(skb, MLX5E_METADATA_ETHER_LEN); |
| } |
| |
| #endif /* CONFIG_MLX5_ACCEL */ |
| |
| #endif /* __MLX5E_EN_ACCEL_H__ */ |
