From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 76DEE2E2850; Thu, 7 May 2026 14:30:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778164257; cv=none; b=u4vqPNb8oMbMHnDhEI5yUbX0+7YwZy7GPvncmTKXIUqrTwuhySDClFtEVkaiKLBpCly/zltl8s8NZvTHXf3TqOkVUAqYxo9kwwAJrA6d7P1DL6ESvKjpF+OQ1c7/2EndsOfNO9DdvxGbbvWpIl+cSox1zQfRONVnEWzj7p5hU1s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778164257; c=relaxed/simple; bh=IFtDFssdahyt1hvVS5/SnAnafeF8Slh0mPRxU2hqVnc=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=Gs5SgxALz7e1DUqZNxc3kjDN0SYVqb/yIaTCEImE5PlUWtuIznasRF9OmgG8+xVRLKGT/UjJdDLymIGw178AM077PAGQtg0Aemr+cBI/cC5sK9M7OCcVpGFvsVtjYMaOdzyHvkh4DJ3J0PP4SiwSyHq54xxEfIUrci3u35kLfdg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pEa3vw2r; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="pEa3vw2r" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 10816C2BCB2; Thu, 7 May 2026 14:30:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778164257; bh=IFtDFssdahyt1hvVS5/SnAnafeF8Slh0mPRxU2hqVnc=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=pEa3vw2rqqlQGP6EXtCvTogZNbjujM7BuU5BPsI8uqh0Jg4SGC7p5SRAeSQM3sIUM AXRbpIlio9IMgzMZIInJ/rAw9L55G1qe0DAw6q09qQXr6rzRJZO/j+mbyk/Q1/Xapz ijv0UXuXad9+ajonLy9/cnv9dfNvTOuk1nrl7HXMLISHlr2glgb2RYTVonFnr+OvcI CfmzNBgW3nNVotP/MkcuBUursHvjvlmBnrzLcyTt4EPUa0gEqSVqfHFN5M0m2gx/jM XaMsAA1v5SlHTZAZsG11/C9mlo5z1qkO2W76okv+BO+28LAuk0s0LdYe19vRM686qx dDufajxhCcS0Q== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 7CCE33930903; Thu, 7 May 2026 14:30:07 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next v5 0/5] veth: add Byte Queue Limits (BQL) support From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177816420629.4015158.7466630027933005343.git-patchwork-notify@kernel.org> Date: Thu, 07 May 2026 14:30:06 +0000 References: <20260505132159.241305-1-hawk@kernel.org> In-Reply-To: <20260505132159.241305-1-hawk@kernel.org> To: Jesper Dangaard Brouer Cc: netdev@vger.kernel.org, kernel-team@cloudflare.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, carges@cloudflare.com, mfreemon@cloudflare.com, toke@toke.dk, j.koeppeler@tu-berlin.de, leitao@debian.org, simon.schippers@tu-dortmund.de, ast@kernel.org, daniel@iogearbox.net, john.fastabend@gmail.com, sdf@fomichev.me, bpf@vger.kernel.org Hello: This series was applied to netdev/net.git (main) by Paolo Abeni : On Tue, 5 May 2026 15:21:52 +0200 you wrote: > From: Jesper Dangaard Brouer > > This series adds BQL (Byte Queue Limits) to the veth driver, reducing > latency by dynamically limiting in-flight packets in the ptr_ring and > moving buffering into the qdisc where AQM algorithms can act on it. > > Problem: > veth's 256-entry ptr_ring acts as a "dark buffer" -- packets queued > there are invisible to the qdisc's AQM. Under load, the ring fills > completely (DRV_XOFF backpressure), adding up to 256 packets of > unmanaged latency before the qdisc even sees congestion. > > [...] Here is the summary with links: - [net-next,v5,1/5] veth: fix OOB txq access in veth_poll() with asymmetric queue counts https://git.kernel.org/netdev/net/c/08f566e8f83b - [net-next,v5,2/5] net: add dev->bql flag to allow BQL sysfs for IFF_NO_QUEUE devices (no matching commit) - [net-next,v5,3/5] veth: implement Byte Queue Limits (BQL) for latency reduction (no matching commit) - [net-next,v5,4/5] veth: add tx_timeout watchdog as BQL safety net (no matching commit) - [net-next,v5,5/5] net: sched: add timeout count to NETDEV WATCHDOG message (no matching commit) You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html