[openib-general] Re: RFC: cma: need rdma_unbind

[Michael S. Tsirkin]

Quoting r. Sean Hefty <mshefty at ichips.intel.com>:
> Subject: Re: RFC: cma: need rdma_unbind
> 
> Michael S. Tsirkin wrote:
> >No, I don't want to disconnect yet - I am in the process of graceful
> >shutdown, I want to continue sending data.
> 
> It sounds like the problem is that both SDP and the CMA are trying to 
> provide sockets-like behavior, which leads to this issue.

As I see it, other ULPs besides sockets might need the same.

> SDP needs to 
> release the port, but still wants to keep the connection active.

Right.

> This 
> requires the CMA to do something different from sockets in order for SDP to 
> maintain a sockets-like interface.  Does this sound like a correct 
> interpretation of the issue?

More low-level, I would say.

By the way, SDP we now have in svn trunk actually provides an "unbind" socket
option, as an extension. It turns out to be useful for libsdp.



-- 
MST