Date: Mon, 29 Jun 2015 20:34:02 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Adrian Chadd <adrian.chadd@gmail.com> Cc: Navdeep Parhar <np@freebsd.org>, FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: netmap custom RSS and custom packet info Message-ID: <20150629173402.GI1647@zxy.spb.ru> In-Reply-To: <CAJ-Vmo=OY3rjTR%2Bc-WMT2k7_gNNrY-bBEKB=%2BAhnZ6t5aa1Jzw@mail.gmail.com> References: <20150629151750.GD1647@zxy.spb.ru> <55917B43.70904@FreeBSD.org> <20150629171930.GH1647@zxy.spb.ru> <CAJ-Vmo=OY3rjTR%2Bc-WMT2k7_gNNrY-bBEKB=%2BAhnZ6t5aa1Jzw@mail.gmail.com>
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On Mon, Jun 29, 2015 at 10:29:14AM -0700, Adrian Chadd wrote: > Hi, > > Turns out there are a class of symmetric RSS Toeplitz keys. Use google > to find the paper. :) How this interopperate with PPPoE encapsulation? With GRE/GTP/MPLS encapsulation? > On 29 June 2015 at 10:19, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > > On Mon, Jun 29, 2015 at 10:07:15AM -0700, Navdeep Parhar wrote: > > > >> On 06/29/2015 08:17, Slawa Olhovchenkov wrote: > >> ... > >> > b) custom RSS. Modern NIC have RSS poorly interoperable with packet > >> > analysing: packets from same flow, but different direction placed in > >> > different queue, ... > >> > >> This is default behavior because the default hash (Toeplitz) is not > >> symmetrical. There are modern NICs that do support other, symmetrical > >> hashes. > > > > Anyway this is still hardware-depended. > > I am don't see symmetrical hashes for 1G/10G Intel cards. > > _______________________________________________ > > freebsd-net@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-net > > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org"
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