[dpdk-dev] [RFC 2/2] net/i40e: update requested queue pair num check for rounding

Zhang, Qi Z qi.z.zhang at intel.com
Mon Mar 11 03:18:57 CET 2019



> -----Original Message-----
> From: Kevin Traynor [mailto:ktraynor at redhat.com]
> Sent: Wednesday, March 6, 2019 12:31 AM
> To: Zhang, Qi Z <qi.z.zhang at intel.com>
> Cc: dev at dpdk.org; Kevin Traynor <ktraynor at redhat.com>; Yan, Zhirun
> <zhirun.yan at intel.com>
> Subject: [RFC 2/2] net/i40e: update requested queue pair num check for
> rounding
> 
> Since rounding up the requested queue pairs to allow the vf to request a
> non-aligned number was added, it may happen that the requested number is
> less than the available num of queues but the rounded up number is greater. In
> this case, it is not caught with the usual checks but later when there is a reset and
> failed setup.
> 
> By rounding earlier the checks can be done before a failed reset occurs, and a
> rounded max amount of available queues can be returned to the vf.
> 
> Cc: zhirun.yan at intel.com
> Signed-off-by: Kevin Traynor <ktraynor at redhat.com>

Acked-by: Qi Zhang <qi.z.zhang at intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi


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