Re: I need sk_buff frag_list info.

[Andi Kleen <ak@xxxxxxx>]

On Fri, Mar 15, 2002 at 10:43:12PM -0500, Donald Becker wrote:
> A final related note: drivers should always allocate consistently
> sized skbuffs.  Specifically, Ethernet drivers should always allocate
> 1536 byte buffers.  Using a single buffer size gives the skbuff
> allocator the opportunity to efficiently recycle buffers rather than
> having to allocate and free a mix of sizes.

The current skbuff allocator uses kmalloc for the data part. kmalloc
currently always rounds to a power of two. So for any 
2K>=value+sizeof(struct skb_shared_info)>1K 
you will get a 2K buffer. The skbuff head recycling works independently
of the data size.

-Andi