[openib-general] [mthca] Creation of a SRQ with many WR (> 16K) in kernel level fails

[Dotan Barak]

Michael S. Tsirkin wrote:
>> I think that now, when implementation of IPoIB CM is available and SRQ 
>> is being used, one may need to use a SRQ with more than 16K WRs.
>>     
>
> Not really: IPoIB CM uses a common CQ for all recv completions, so
> it does not make sense for IPoIB CM to create a SRQ bigger than
> the max CQ size.
>
>   

In many HCAs, the maximum CQ size is 128K entries.


Dotan