Date: Mon, 29 Jun 2015 10:29:14 -0700 From: Adrian Chadd <adrian.chadd@gmail.com> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: Navdeep Parhar <np@freebsd.org>, FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: netmap custom RSS and custom packet info Message-ID: <CAJ-Vmo=OY3rjTR%2Bc-WMT2k7_gNNrY-bBEKB=%2BAhnZ6t5aa1Jzw@mail.gmail.com> In-Reply-To: <20150629171930.GH1647@zxy.spb.ru> References: <20150629151750.GD1647@zxy.spb.ru> <55917B43.70904@FreeBSD.org> <20150629171930.GH1647@zxy.spb.ru>
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Hi, Turns out there are a class of symmetric RSS Toeplitz keys. Use google to find the paper. :) -a 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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