Date: Fri, 27 Oct 2017 09:55:37 +0300 From: Andrew Rybchenko <arybchik@freebsd.org> To: Mark Saad <nonesuch@longcount.org>, Andrew Rybchenko <arybchik@freebsd.org> Cc: Philip Paeps <philip@freebsd.org>, Allan Jude <allanjude@freebsd.org>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: Anyone using Solarflare on FreeBSD 10-STABLE ? Message-ID: <0d126774-3736-4a4c-c01f-07bc9caf82a6@freebsd.org> In-Reply-To: <CAMXt9Nan=ub_OSoWi53UFeJ5Er2UhU0StP-nX510Sdh3X0Nvtw@mail.gmail.com> References: <CAMXt9Na1MkFJHXCxQhkVU=JoqvVsU_w1U3xNTN%2BJ0PzxESChaw@mail.gmail.com> <bf3d1ef1-30d9-f7c7-5a2a-af47cc937414@freebsd.org> <333473BB-43C3-4E3E-B62F-03DE5650E403@freebsd.org> <7951e7d5-b5e6-033d-0b51-1d4a10946937@oktetlabs.ru> <CAMXt9Nan=ub_OSoWi53UFeJ5Er2UhU0StP-nX510Sdh3X0Nvtw@mail.gmail.com>
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On 10/25/2017 12:04 AM, Mark Saad wrote: > On Tue, Oct 17, 2017 at 3:44 PM, Andrew Rybchenko <arybchik@freebsd.org> wrote: >> On 10/17/2017 08:54 PM, Philip Paeps wrote: >>> On 2017-10-17 19:36:20 (+0200), Allan Jude wrote: >>>> On 10/17/2017 12:32, Mark Saad wrote: >>>>> Speificly I wanted to know if anyone knew what this sysctl refers to >>>>> >>>>> dev.sfxge.NN.stats.rxdp_di_dropped_pkts >>>> >>>> I have two 11.1 boxes with a dual ported sfxge each, but I have no idea >>>> what that counter is trying to describe. >>>> >>>> The man page says this is Philip's fault. >>> >>> This code is not my fault! ;-) I believe arybchik added it. >>> >>> Looking at the code, it's packets that have been dropped in the data path >>> by the dispatcher cpu. Probably related to virtual functions? >> >> Philip, thanks. I don't think in this particular case it is related to >> virtual functions. >> >> Basically the counter means that ingress packet does not match any installed >> filter. E.g. promiscuous mode is disabled and: >> - destination MAC is unicast and not the interface MAC address, OR >> - destination MAC is multicast and there is no matching multicast address >> added. >> >> There is a race condition as well on interface bring up when packet is >> received but default filters are not installed yet. >> >> SFN8522 and SFN8542 have other cases for encapsulated traffic depending on >> driver version (right now I don't remember the state in 10-STABLE). >> >> Mark, let me know if I can help more. >> >> Andrew. > Could you clarify what was meant by Virtual Functions ? Vlans , laggs > etc or srv-io ? > Also I do have IGMP snoop enabled and routing is done locally on each > router -, the freebsd box with the sfxge cards. I meant SR-IOV. Which SF NIC do you use? Andrew.
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