Hi! On 17:38 Thu 04 Apr , Tarun Batra wrote:

Can anyone plz explain me the fields

skb = kmem_cache_alloc(skbuff_head_cache, gfp_mask & ~_ _GFP_DMA); ... ... ... size = SKB_DATA_ALIGN(size);

size of data buffer (the bytes you send over the wire not the overhead of everything you need in ram to process the packets)

data = kmalloc(size + sizeof(struct skb_shared_info), gfp_mask);

data is the actual buffer (+skb_shared_info at the end of it) -Michi -- programing a layer 3+4 network protocol for mesh networks see http://michaelblizek.twilightparadox.com