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=1793140207; b=29VkV8Hu5wRnk+Vf3J3Y4j9laNZV8jqGNQ7WJvoVq51NUJuF3qHFHOmwq0NIpESAqvo0 s1xOK0jdXvgp65turkV4vLtfKU+2RvG4VBdb4P+/DsdzFCeDdWBKNJhkazpYyLai7h6z9 JRZcgvdbEW/nIS7FjculQ+dwbtxZhLLthxlbQ7jE0jVAIMPeBES3lylsT28GMIug0uAh0 sRxRZxh5Uqc5FDjjElZqQmgxhbtre2u1yPwSJzBemKgIRe55NeWTBZ5dJ6kYilVPlG13P t+6h7f3OAGig8/sc4ryi2Fp4HQOqYQavPbVolhWidxxgyZYzhzpMUNZyn52HMcF861Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793140207; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=xuq66sDnBhsAplEkzYm7QcixWPor8L5zRdirUDF98Vs=; b=OBe8pbelmCuzZG8PSYQ7+yfR5iqYDOvZVLGkr3W6Qnn8xhi7tTuqg5I2B3h9Ytg/CED6 zQELUwq6pI0NOW/RkTBfNu+YozKzunNL8RghwScJ3NrpmQKRJFBFl1ELfd3zszSgCwcl9 0HAojI0xdpNJiB7IE01D1qfsGTm4xYJqkmFPMVGcN6QxvHvIhz+/WSZe8AQGNv3SJqmhM SZyC3cnmdesINxnH2aNWkQOkRrvvoYDLsg+yrTWY9M9oD4BX5iwFym3QeYzakf88Px7iC lsAM/J06wxEbtXwJOMrcJH4nuDfvcSy4o3ru2k/dvn3o9TFfB6r10ixjZ6NmAXz5Ssg== 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=N2xcgAJs; 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 1A095606A31E; Tue, 27 Oct 2026 22:30:07 +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=N2xcgAJs Received: by smtp.kernel.org (Postfix) with ESMTPSA id E8F321F01829; Tue, 27 Oct 2026 22:30:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793140207; bh=xuq66sDnBhsAplEkzYm7QcixWPor8L5zRdirUDF98Vs=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=N2xcgAJsVvjA2GHoiyQcvdzZae2VtjCmB4UvxqHSPhnRgRBOwbvmrlS8vSBjyimZN K7ObJX/nInju5WgC+Ku08Ga/uyeu5S4ODHA5/PWHUrfU/tb5TECyrzIC6GTPiv2Nx0 0tnRq4OXP0DP2V2ULVsqAinECK5qDmannYVKExh8nFCI9OsvKOS260KSt4pUIAZvMH kP0dsojOAXad0PIdPBtwa6oif4UdvTnq52MtwFxvxmnslByR4qEFo/s1w2K4BcFffk Q/+cziWsGEY9LAPRYrpgD+meGk5FbFF6QabkkTsc5VajyhrUkOsxHBGpQeN/zCfX7A uqC7yFlb7UVGA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id DC5943AA940C; Tue, 27 Oct 2026 22:30:06 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: netdev@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] net: microchip: fdma: fix DCB corruption under sustained load From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179314020569.360855.3209955034452568131.git-patchwork-notify@kernel.org> Date: Tue, 27 Oct 2026 22:30:05 +0000 References: <20261026-microchip-fdma-dcb-corruption-v1-1-36dab6caca07@microchip.com> In-Reply-To: <20261026-microchip-fdma-dcb-corruption-v1-1-36dab6caca07@microchip.com> To: Daniel Machon Cc: Steen.Hegelund@microchip.com, UNGLinuxDriver@microchip.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, horatiu.vultur@microchip.com, jensemil.schulzostergaard@microchip.com, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Mon, 26 Oct 2026 14:47:05 +0100 you wrote: > __fdma_dcb_add() prepares a DCB and links it into a channel's chain by > writing its address to the NEXT_PTR of the current last DCB. The FDMA > may be processing the chain while this happens. > > Before this patch, the link is written before the new DCB's own nextptr > and info fields, so the FDMA can follow it to a DCB that hasn't been fully > prepared yet. Under sustained load this stalls the FDMA. > > [...] Here is the summary with links: - [net] net: microchip: fdma: fix DCB corruption under sustained load https://git.kernel.org/netdev/net/c/573a6d4c7a21 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html