Date: Mon, 1 Jun 2015 13:51:05 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Slawa Olhovchenkov <slw@zxy.spb.ru> Cc: FreeBSD Net <freebsd-net@freebsd.org> Subject: Re: Intel igb 82576 (netmap mode) and RSS queue issuse with fragmented UDP packets. Message-ID: <CAJ-VmonBM4LjyLYKLW6pBrqJ_Cjo8g8hTzwkstmjO5wsHtdc=A@mail.gmail.com> In-Reply-To: <20150601145423.GH1647@zxy.spb.ru> References: <20150601082509.GE1647@zxy.spb.ru> <CAJ-Vmon8kKz8CTCU-vNx-wkjpRAO4RkKANC%2BSo5GrQdfUQQcdA@mail.gmail.com> <20150601145423.GH1647@zxy.spb.ru>
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On 1 June 2015 at 07:54, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > On Mon, Jun 01, 2015 at 07:50:31AM -0700, Adrian Chadd wrote: > >> They all behave the same. You can fix the intel driver(s) by looking >> for the TCP/UDP queue config and only enabling IPv4/IPv6 (not TCP/UDP) >> hashing. > > Are you sure that enabling only IPv4/IPv6 hashing fix this? > I see hashing in may case depends from flags fields. > flags field is not part of TCP/UDP. Yes. Just try doing ipv4/ipv6 only hashing. See if that fixes it. -a > >> On 1 June 2015 at 01:25, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: >> > I am use Intel 82576 (igb driver) in netmap mode. >> > I see isssuse: flow routed in different queue depends of IP flags. >> > >> > For example: >> > >> > Total 4 queue. >> > UDP flow. >> > SRC: 91.214.70.167:12062 DST: 95.31.64.226:49939 Flags:DF routed to queue 0 >> > SRC: 91.214.70.167:12062 DST: 95.31.64.226:49939 Flags:More_Frags (offset 0, length 1396) routed to queue 3 >> > >> > I understand that next fragment (IP (tos 0x0, ttl 62, id 36361, offset >> > 1376, flags [none], proto UDP (17), length 102) 91.214.70.167 > >> > 95.72.171.116: ip-proto-17) may be routed in different queue, but why >> > fragment 0 routed to different queue? This is software (driver, >> > netmap) issuse? Or this is hardware (silicon) isssuse? >> > >> > What about Intel 10G/40G cards? Chelsio? >> > >> > _______________________________________________ >> > 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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