From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792530046; b=4NnwORzSQd92kqLsAvP5HaCf6JXT0bFsR1nhP75AE9h8GZnX1OU/8tNAUJcTYtYGdbJC g7ZGanWeQGCjRBdhWBe1CcLYAauztt6Rbh/jgeRZHFvgUCZ6V2qJWN3dV2kphu8kNmmTa JuGYmVbnqGY2J9tTij4PY8SpUdG3/diZEfo9w8A7ulma7IlHjsjutqHXAZrZzBOkM71VM 9/kcUEdpXmkIB/GoNSIjVKo3P/a5RwerEw3hsU7O3X1+wS2z3vy5cE00uXt0DqCtwfzIW IQkJUgBgN7GOI57p7VaprsoKMkQ3mKnXMyy1q2WBd3liofch84e59LdxBruiBHuDXFw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792530046; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=s7LHFRSXHic5XGEInYp0jAmgGHudXLNGKJjFiKqPrq4=; b=x+8OXnHWdA2SCN9KDQAKJt0MMJL10iH/H1v1ek83/wgaBfgexB7ZRr9AOzjh5Loz3lma ULtYYSYsuO5pwFoPjEZ3xQ8EDPUN8Y+O7Kb2I2HTfiQZIK6DhBfUAgZw+hdxfCbsmkm4N 3UwdiBe+CwTnoOYORS7eNDJIVaCoiefCTRfs/APEjb+YmVoz35G37gxKXJx8rkBa0plEi /AhxxFzyL8eY9KxU8Yzsab9VaFfVqhwFL7lqs24MRcgeP/k0ij9kml6SI3fku3+tfKlNp vCAYjcmTEHHUTGm00CUkkTHPy5KZlqrNV/QSCwQKunK6FJpjwevclBW+JBLy/4XowIA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=KQci7tJF; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6A2E7606A326; Tue, 20 Oct 2026 21:00:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=KQci7tJF Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42BAF1F000CA; Tue, 20 Oct 2026 21:00:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792530046; bh=s7LHFRSXHic5XGEInYp0jAmgGHudXLNGKJjFiKqPrq4=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=KQci7tJF+IYLQv12efD+MqxN8J1OOwJGnXlOocHPZKc29bqs7Rn4uxmeGPDrGl9/K DlZh+oY49USpQZHxL+KjFEv0OW74s+5g6WrN4Umesz8ZSy4kJ9elFqSZiEMHh9kWav cW5alHMgELP+qd4Mj0p1uOEq+HRuwVz7Fu6mmpjK8oo/udT3qTqa3lWAJSP6l6NSuA cqQOtolImM7THpRhx7QSnEtpo7lCBakPYqUOtiVqaERF/8ITWp+Sdb+HOO0PPGlWHO weVCueq+jZPslSqNq3gslFD+60qceaw0ggnoYot0rsoW8NUlJNaaAUwhpHsjhyVO50 Zc2yMZPTVRHfQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 3A3B93809A09; Tue, 20 Oct 2026 21:00:46 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next v3] net: mana: add BQL support From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179253004477.208021.12583295837722282628.git-patchwork-notify@kernel.org> Date: Tue, 20 Oct 2026 21:00:44 +0000 References: <20261013214937.145312-1-hamzamahfooz@linux.microsoft.com> In-Reply-To: <20261013214937.145312-1-hamzamahfooz@linux.microsoft.com> To: Hamza Mahfooz Cc: netdev@vger.kernel.org, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, kotaranov@microsoft.com, horms@kernel.org, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, bpf@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Tue, 13 Oct 2026 17:49:37 -0400 you wrote: > MANA doesn't support byte queue limits, so each TX queue can hold 256 > WQEs by default, and up to 16384, of up to 64 KB TSO packets, before the > qdisc layer sees any backpressure. This adds latency to all the flows > sharing a queue, and defeats AQM qdiscs such as fq_codel, which rely on > BQL to keep the driver queues short. > > Report the bytes queued and completed to BQL, except for the XDP_TX and > XDP_REDIRECT frames. These share the SQs, but bypass the qdisc and are > sent even when the queue is stopped, so BQL can't hold them back. > Counting them would let sustained XDP traffic keep the queue stopped, > starving the stack, and the TX watchdog would then either fire while the > completions still arrive, or, if the XDP sends refreshed trans_start, > not fire when the completions stop. The XDP SKBs are marked in their > skb->cb, next to the WQE size, so that their completions are skipped as > well. > > [...] Here is the summary with links: - [net-next,v3] net: mana: add BQL support https://git.kernel.org/netdev/net-next/c/799cdeaa5c39 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html