Re: [PATCH] e1000 rx buffer allocation

[David S. Miller]

On Fri, 27 Aug 2004 11:36:36 -0700
Chris Leech <chris.leech@xxxxxxxxx> wrote:

> A better approach for improving jumbo frame allocations might be to
> use multiple smaller buffers for each receive, something the PRO/1000
> hardware can do but the e1000 driver has never taken advantage of.
> 
> Dave, you mentioned the possibility of drivers doing that in a
> conversation with Harald about handling fragmented packets
> (http://marc.theaimsgroup.com/?l=linux-netdev&m=109293677816177&w=2) 
> What would be the more correct approach to this?  Putting all receive
> data into page allocations and filling out the frags array, or
> chaining together small skbs using the frag_list?

Yes, you can use multiple buffers for receive packet receive
and the network stack will handle it just fine.  I would recommend
using 256 bytes for the skb->data area and put the rest in page
frags.
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