From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Traynor Subject: Re: [RFC 2/2] net/i40e: update requested queue pair num check for rounding Date: Mon, 11 Mar 2019 18:38:28 +0000 Message-ID: <3536cc53-0a13-f5db-1238-a84c9b70f413@redhat.com> References: <20190305163039.16790-1-ktraynor@redhat.com> <20190305163039.16790-2-ktraynor@redhat.com> <039ED4275CED7440929022BC67E706115334A38D@SHSMSX103.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Cc: "dev@dpdk.org" , "Yan, Zhirun" To: Ferruh Yigit , "Zhang, Qi Z" Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id 0FD74378B for ; Mon, 11 Mar 2019 19:38:36 +0100 (CET) In-Reply-To: Content-Language: en-US List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 11/03/2019 12:35, Ferruh Yigit wrote: > On 3/11/2019 2:18 AM, Zhang, Qi Z wrote: >> >> >>> -----Original Message----- >>> From: Kevin Traynor [mailto:ktraynor@redhat.com] >>> Sent: Wednesday, March 6, 2019 12:31 AM >>> To: Zhang, Qi Z >>> Cc: dev@dpdk.org; Kevin Traynor ; Yan, Zhirun >>> >>> 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@intel.com >>> Signed-off-by: Kevin Traynor >> >> Acked-by: Qi Zhang >> >> Applied to dpdk-next-net-intel. >> > > These were checkpatch warnings because of whitespace (spaces before tabs), fixed > while merging to next-net. > Thanks Ferruh. Not spaces before tabs, but using spaces for alignment where there was room for an additional tab. I misinterpreted "spaces for alignment" in the CS note. Maybe it's clear for others, but I'll send a small clarification so I'll remember next time :-)