[ofa-general] patch to ib_addr for sending arps

[leo.tominna at oracle.com]

Ok thanks.  I'll look at these see what is different.

Leo Tominna

On 7/13/2009 2:14 PM, Jason Gunthorpe wrote:
> On Mon, Jul 13, 2009 at 01:35:08PM -0700, leo.tominna at oracle.com wrote:
>   
>> Right, there should only be one route lookup call.  And the send_arp should
>> match what TCP/UDP are doing, I'm pretty sure they don't use neigh_event_send
>> like ib_addr is, or if they do, they are not using ip_route_output_key to get
>> the neighbor entry.  I could not find the code that generates arps for these
>> protocols. 
>>     
>
> They do, but indirectly, dst_output() cals neigh_resolve_output()
> which calls neigh_event_send() - since there is no real skb in the RDMA
> routines it seems reasonable to call neigh_event_sent() directly..
>
> ip_route_output_key is used to populate dst in the skb which is
> fetched by neigh_resolve_output to get the neigh and the neigh has the
> ofid.
>
> Jason
>   
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