Date: Mon, 29 Jun 2015 16:34:28 -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=43bV%2BE2LMAbTsNZPG%2BK3jX8uCwjmbLVT9W6YT-8T0MA@mail.gmail.com> In-Reply-To: <20150629191110.GK1647@zxy.spb.ru> 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> <20150629191110.GK1647@zxy.spb.ru>
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On 29 June 2015 at 12:11, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > 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. :) > > Do someone work on using different RSS keys and hash fields (selecting > L2/L3/L4 or just L3 hash for example) in FreeBSD? The -HEAD RSS stuff has a global set of (compiled in) config options that say whether L2/L3 RSS hashing is enabled. It's more complicated than that, as the alignment of RSS NIC config, expected RSS hash info and the tcp/udp pcb table hashing has to align, or weird stuff happens. It still needs a bunch more work. Unfortunately it's not in my "would be useful for work" right at the moment, so other things are taking priority. -adrian
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