From owner-freebsd-net@freebsd.org Fri Jun 19 16:16:49 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id D4ED8332133 for ; Fri, 19 Jun 2020 16:16:49 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qv1-xf34.google.com (mail-qv1-xf34.google.com [IPv6:2607:f8b0:4864:20::f34]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49pP810lJCz4Rgf for ; Fri, 19 Jun 2020 16:16:48 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: by mail-qv1-xf34.google.com with SMTP id cv17so4682215qvb.13 for ; Fri, 19 Jun 2020 09:16:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=oy1gooxQSnU+LhNp5FYyybWaFXNpcEdkAdqZiB/sUIw=; b=Ygzy26O/ol/xZ11hKdYZQza4r6khR4H7XHVrt5cOoA2KM4/1+0fgupgLaVqWCxu1cc xienTxukvknQNzETOH6uyBF8L4soTFpW93cY8mcGsETbLWzRCLhgnspKSaBMUDQdQ32y qZpvI1TQxG1xpUepoQMCSupzdG2+1evnNgU/cPzgAcHJSpilKuBkC26p3MC+1Ct/Shl4 h2vNsf4+n4tvP+kN7uR0ew2par47gagUOCie6WmKc9v6wp1dy4BygLzsb0v0hygXwovE 5QUVejRQ9G29yX1hGtCsdF0sTCim2w9smJev3jdn+ARh1J92tT4k/j9sjlHN01AxTcpt MAhw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=oy1gooxQSnU+LhNp5FYyybWaFXNpcEdkAdqZiB/sUIw=; b=ioN0K2UUqRlVgW73go++pCRWbN7SVQtrZV/fYARJLpitmEIhcszKmZ0AwrBTa6pju0 UY8iMdDyR7iyEqwkKFurQyhP1RuOwYRyYyFWSBxHcqt+x34DmudO8pSnRED8Q06PF/DK 2BY0YHOslzrJzKut6B8QNHdVAnOjJobjBDZM2jHbLLDdOSUHFPG30zTNKG0mgKuXr2DW heef8MubbZVeRoVhYAY/QVgoOACoweC526O6oSRTmt4av2Ah81uIbRQM8/IFWPdjE5Ep 5oft0hLHYw2kjo72IaV/YPTmMR69lguAUkACrrjh2PnGCg+sPhdxqzD9vqCKVDfic6OL TSyQ== X-Gm-Message-State: AOAM530FDiXiz0qx4j//83zx+WOknKxDOVDvqN+x1gyjVANnpEFCE/vD GsoDBbQFT2uD8514I6qxSwDnYRW01/sRRpJGu1o= X-Google-Smtp-Source: ABdhPJwCmfPZJUOxjkjT8/91FhY4EMMwYip6oC6DsDSYLd4QwU1Ow/oV6T2Urqg6YLaWJqpCg8iJNVP/oBCM1cBOm8w= X-Received: by 2002:a0c:bf47:: with SMTP id b7mr9290415qvj.167.1592583408232; Fri, 19 Jun 2020 09:16:48 -0700 (PDT) MIME-Version: 1.0 References: <20200613025031.GA34653@x270> <20200617001315.GB80914@x270> In-Reply-To: <20200617001315.GB80914@x270> From: Adrian Chadd Date: Fri, 19 Jun 2020 09:16:36 -0700 Message-ID: Subject: Re: How to Increase TX Queue Priority for LACP Packets To: "Saad, Mark" , "Foster, Greg" , "freebsd-net@freebsd.org" X-Rspamd-Queue-Id: 49pP810lJCz4Rgf X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20161025 header.b=Ygzy26O/; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (mx1.freebsd.org: domain of adrianchadd@gmail.com designates 2607:f8b0:4864:20::f34 as permitted sender) smtp.mailfrom=adrianchadd@gmail.com X-Spamd-Result: default: False [-3.11 / 15.00]; TO_DN_EQ_ADDR_SOME(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20161025]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; FREEMAIL_FROM(0.00)[gmail.com]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; NEURAL_HAM_LONG(-1.00)[-0.996]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[gmail.com:+]; DMARC_POLICY_ALLOW(-0.50)[gmail.com,none]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::f34:from]; NEURAL_HAM_SHORT(-0.11)[-0.109]; NEURAL_HAM_MEDIUM(-1.00)[-1.001]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; FREEMAIL_ENVFROM(0.00)[gmail.com]; RCVD_COUNT_TWO(0.00)[2]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; TAGGED_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.33 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 19 Jun 2020 16:16:49 -0000 On Tue, 16 Jun 2020 at 17:13, Navdeep Parhar wrote: > We could have a global knob that tells all NIC drivers to use a reserved > queue for non-RSS traffic, but that would be advisory at best because > the tx queue selection takes place inside the driver's (or iflib's) > transmit routine. The meat of the change is going to be in iflib and > all non-iflib drivers' if_transmit. > This isn't a terrible idea - we do the same on wifi for EAPOL / 802.1x frames, and some drivers even do the same thing for DHCP frames. Doing it in iflib would actually be kinda nice. -adrian