Re: RDMA will be reverted
From: Tom Tucker <hidden>
Date: 2006-07-06 17:36:28
On Fri, 2006-07-07 at 00:08 +1000, Herbert Xu wrote:
Tom Tucker [off-list ref] wrote:quoted
All that said, the proposed patch helps not only iWARP, but other transports (iSCSI, IB) as well. It is not large, invasive,Care to explain on how it helps those other technologies?
The RDMA CMA uses IP addresses and port numbers to create a uniform addressing scheme across all transport types. For IB, it is necessary to resolve IP addresses to IB GIDs. The ARP protocol is used to do this and a netfilter rule is installed to snoop the incoming ARP replies. This would not be necessary if ARP events were provided as in the patch. Unified wire iSCSI adapters have the same issue as iWARP wrt to managing IP addresses and ports.
Cheers,