[ofa-general] [PATCH RFC] rds: add iwarp support

[Or Gerlitz]

Steve Wise wrote:
> Prior to the iWARP patch, the way this transport switch decision was 
> made was to look up the local netdev based on the ipaddr(s) and if the 
> netdev's ARP header type was INFINIBAND, then obviously the IB 
> transport should be used. With the addition of iWARP, the decision is 
> a little more complicated because the iWARP netdev arp type is ETHERNET.
Olaf,

Since the address provided to laddr_check() is the --source-- one 
(please correct me if I am wrong) and this is slow path operation, how 
about changing the transport switch to use rdma_bind_addr instead of 
ip_dev_find()? rdma_bind_addr is a synchronous operation, works for both 
IB and iWARP, and down the road will also support IPv6 (the API is in place)

Or.