#ifndef __MLX5E_ACCEL_H__ #define __MLX5E_ACCEL_H__ #ifdef CONFIG_MLX5_ACCEL #include <linux/skbuff.h> #include <linux/netdevice.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__ */