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 8B72022D782; Fri, 16 May 2025 22:49:59 +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=1747435799; cv=none; b=H4RLAJAbtgHdsnWrzSnW+X71qzrQXbF1Ej/R5MayaBQxNmOWR6VTEJ4K515iCH0sS9xQQ0d9DywDqnU319T/a66TDSPBhUVINV0soLIkQ58BTsE45j2pkwRI8EsVaa4EjQwt7rF1q4lMH8fcv5rA7KBZMFSE93vmIveiXVKTOqw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747435799; c=relaxed/simple; bh=NacLtLtlAanoYX5bSIOd2FakTpOx4RBbjocPn2RrtMI=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=K3LYxo2UZEjQ6IeiGT6J+ZWIAOufYzvyfEeS2RZUZ3VPeicOWddVR/1z+hp+4a5wiQjXfQhcujzvYHwdIE/7TXcBknPqFJUjtBXXmZS/+6wkdDq5RqsO39zsn4xOPqKhmoWe4T5lnHsaou9YsK9SGpedD/CXJGkqFfvtea4Nva4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=J6hPO2eC; 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="J6hPO2eC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF677C4CEE4; Fri, 16 May 2025 22:49:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747435799; bh=NacLtLtlAanoYX5bSIOd2FakTpOx4RBbjocPn2RrtMI=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=J6hPO2eCtyg5gSdYJgXxEj1NFAwmwFmCgZ1/F9f7v2LMAGVtHgT0NvB0vrYPNwzx8 g0bDjJ/EaFIBx7z+Ffwzs5nlJfSJ4do/FoFmh+JWpTemB4lRh4F1AZHr7V77dmk1zC 3G2ltNy3e/wB2o/kWlnDfxNMrEkUVTcfpwDe8dItMWdPlyeOdwMKmyupgRamaDflzC 2rN2Rsa1NXCRzhqEIhK5Xsoa0ZXNplKKFeSOY/mURc53wXZOg2Y2j2f6Ke+PI76tR5 PGhKBZPH6N74Xq+S1D6jJz/C2yeNUGTu0PEQpOsGfK2TzbowLEwwfXXaWzX+S6I2eK jDeMQ8BZw9dhw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id EAE613806659; Fri, 16 May 2025 22:50:36 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] net/mlx5e: Reuse per-RQ XDP buffer to avoid stack zeroing overhead From: patchwork-bot+netdevbpf@kernel.org Message-Id: <174743583575.4084431.15931290887900865187.git-patchwork-notify@kernel.org> Date: Fri, 16 May 2025 22:50:35 +0000 References: <1747253032-663457-1-git-send-email-tariqt@nvidia.com> In-Reply-To: <1747253032-663457-1-git-send-email-tariqt@nvidia.com> To: Tariq Toukan Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, andrew+netdev@lunn.ch, saeedm@nvidia.com, leon@kernel.org, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, netdev@vger.kernel.org, linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, moshe@nvidia.com, mbloch@nvidia.com, gal@nvidia.com, cjubran@nvidia.com Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Wed, 14 May 2025 23:03:52 +0300 you wrote: > From: Carolina Jubran > > CONFIG_INIT_STACK_ALL_ZERO introduces a performance cost by > zero-initializing all stack variables on function entry. The mlx5 XDP > RX path previously allocated a struct mlx5e_xdp_buff on the stack per > received CQE, resulting in measurable performance degradation under > this config. > > [...] Here is the summary with links: - [net-next] net/mlx5e: Reuse per-RQ XDP buffer to avoid stack zeroing overhead https://git.kernel.org/netdev/net-next/c/b66b76a82c88 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html