diff options
Diffstat (limited to 'include/linux')
-rw-r--r-- | include/linux/skbuff.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 90992371783..aa80ad9cbc8 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -146,8 +146,14 @@ struct skb_shared_info { unsigned short gso_segs; unsigned short gso_type; __be32 ip6_frag_id; +#ifdef CONFIG_HAS_DMA + unsigned int num_dma_maps; +#endif struct sk_buff *frag_list; skb_frag_t frags[MAX_SKB_FRAGS]; +#ifdef CONFIG_HAS_DMA + dma_addr_t dma_maps[MAX_SKB_FRAGS + 1]; +#endif }; /* We divide dataref into two halves. The higher 16 bits hold references @@ -353,6 +359,14 @@ struct sk_buff { #include <asm/system.h> +#ifdef CONFIG_HAS_DMA +#include <linux/dma-mapping.h> +extern int skb_dma_map(struct device *dev, struct sk_buff *skb, + enum dma_data_direction dir); +extern void skb_dma_unmap(struct device *dev, struct sk_buff *skb, + enum dma_data_direction dir); +#endif + extern void kfree_skb(struct sk_buff *skb); extern void __kfree_skb(struct sk_buff *skb); extern struct sk_buff *__alloc_skb(unsigned int size, |