[openib-general] common cq

[Michael S. Tsirkin]

Quoting r. Libor Michalek <libor at topspin.com>:
> Subject: Re: SDP_CONN_LOCK
>
>   Next, in this portion of the code I was actually going to try using a
> single CQ instead of two to see if we get an additional improvement as a
> result of fewer interrupts and simpler code.
> 
> 
> -Libor

Libor, what about using a common cq for multiple sockets?
The advantages would be - reduced event rate and reduced locking.
Since each CQ also uses hardware resources, this may help scalability.

Memory costs may be minimal (or non-existant), especially if/when
resize CQ is supported.

-- 
MST - Michael S. Tsirkin