Date: Wed, 1 Oct 2014 16:53:47 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org>, Elof Ofel <elofu17@hotmail.com>, "Alexander V. Chernikov" <melifaro@freebsd.org>, Jack Vogel <jfvogel@gmail.com> Subject: Re: individual queue blocking entire rx unit on ixgbe (Re: How do I balance bandwidth over several virtual NICs?) Message-ID: <CAJ-VmokesukRXn1=9Rx0npJqYzUcTZ6=i%2BY5OjRFXdQFEM_2HQ@mail.gmail.com> In-Reply-To: <20141001235312.GA14593@onelab2.iet.unipi.it> References: <CA%2BhQ2%2BhYY7AWE7jJWAg8uYER2LRSPz8TcVPuamsRBLj_WQyakw@mail.gmail.com> <CAJ-Vmo=xiZtKkQEV30Y_c7a6uWD6PbuqzmSSDG12J=w8Z45biA@mail.gmail.com> <20141001203223.GA12122@onelab2.iet.unipi.it> <CAJ-Vmom%2BDsDDa-1GgpUBps8=hMM_1c5auH5kKRiCxAs=w_Casg@mail.gmail.com> <20141001234926.GC13187@onelab2.iet.unipi.it> <CAJ-Vmo=6%2BzPhmmn=uEAX4V0MLqay8iN8yF2zeXYH5zFP6vHJwg@mail.gmail.com> <20141001235312.GA14593@onelab2.iet.unipi.it>
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On 1 October 2014 16:53, Luigi Rizzo <rizzo@iet.unipi.it> wrote: > On Wed, Oct 01, 2014 at 04:47:32PM -0700, Adrian Chadd wrote: >> On 1 October 2014 16:49, Luigi Rizzo <rizzo@iet.unipi.it> wrote: >> > On Wed, Oct 01, 2014 at 04:42:58PM -0700, Adrian Chadd wrote: >> >> Yeah, just grab the diffs that I committed to ixgbe and try it out. >> >> >> >> The flowdirector initialisation is buggy. :) >> > >> > ok but i don't think it is related, see my previous email. >> >> I saw - but the verisign people also saw queue stalls as well. >> >> So is setting DROP_EN unconditionally fixing it for you? > > yes so it seems. Interesting. That's a pretty small window to get it wrong in. Would you file a PR about it? We'll try to get this fixed soon. (Same for igb..) Thanks! -a
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