From owner-freebsd-hackers@freebsd.org Fri Oct 27 07:05:35 2017 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 42A62E5DDEF for ; Fri, 27 Oct 2017 07:05:35 +0000 (UTC) (envelope-from arybchik@freebsd.org) Received: from shelob.oktetlabs.ru (shelob.oktetlabs.ru [84.52.114.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E4A587E8CC; Fri, 27 Oct 2017 07:05:34 +0000 (UTC) (envelope-from arybchik@freebsd.org) Received: from [192.168.38.17] (aros.oktetlabs.ru [192.168.38.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by shelob.oktetlabs.ru (Postfix) with ESMTPSA id 8AB6A7F7D4; Fri, 27 Oct 2017 09:55:37 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.9.2 shelob.oktetlabs.ru 8AB6A7F7D4 Authentication-Results: shelob.oktetlabs.ru/8AB6A7F7D4; dkim=none reason="no signature"; dkim-adsp=none (unprotected policy); dkim-atps=neutral Subject: Re: Anyone using Solarflare on FreeBSD 10-STABLE ? To: Mark Saad , Andrew Rybchenko Cc: Philip Paeps , Allan Jude , "freebsd-hackers@freebsd.org" References: <333473BB-43C3-4E3E-B62F-03DE5650E403@freebsd.org> <7951e7d5-b5e6-033d-0b51-1d4a10946937@oktetlabs.ru> From: Andrew Rybchenko Message-ID: <0d126774-3736-4a4c-c01f-07bc9caf82a6@freebsd.org> Date: Fri, 27 Oct 2017 09:55:37 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-GB Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Oct 2017 07:05:35 -0000 On 10/25/2017 12:04 AM, Mark Saad wrote: > On Tue, Oct 17, 2017 at 3:44 PM, Andrew Rybchenko 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.