From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D556C433F5 for ; Tue, 28 Sep 2021 13:20:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 025AE611C3 for ; Tue, 28 Sep 2021 13:20:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240944AbhI1NVr (ORCPT ); Tue, 28 Sep 2021 09:21:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:60232 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240576AbhI1NVp (ORCPT ); Tue, 28 Sep 2021 09:21:45 -0400 Received: by mail.kernel.org (Postfix) with ESMTPS id 7C723611C3; Tue, 28 Sep 2021 13:20:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1632835206; bh=9Pa+V8+255FRuA+BDCRMbmE6rEpSEgwCkXnCN0iZZ0o=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=D+O3iCpCPRCRfJgKwhPYDR2uu3Q7dPTz4TxE5vd9W/kqSNJBOBYaCjyus3CB4yO5Q o5ybyP64o8hw8+yNvQvHjgsOqL/AUIPDji3VN7S6GBS8Za4qHD50ks/o3esgEcY3ZV JRVVwMFD552hYch0kD7unU7HkuqqVU3dAm1DWkK/gPfhVIUtFNnVCqMva97TFrXjb4 MScM26Q/lYEzBpY9C9cA04WhgINZSAKsERa/PhmcegrTDCvhBarXNi6l0J2ZlhfF7m jW0hmOTtSZE7bcRrO3lBpjeR/3QOu/PzRd29fC1j4/Uf8AtqCJ6Gl7d6BpjaVlI0oP uoT1sotDdODVw== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [net-next v3 PATCH] octeontx2-pf: Use hardware register for CQE count From: patchwork-bot+netdevbpf@kernel.org Message-Id: <163283520646.29265.11641226830844674997.git-patchwork-notify@kernel.org> Date: Tue, 28 Sep 2021 13:20:06 +0000 References: <20210928055526.19286-1-gakula@marvell.com> In-Reply-To: <20210928055526.19286-1-gakula@marvell.com> To: Geetha sowjanya Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kuba@kernel.org, davem@davemloft.net, sgoutham@marvell.com, sbhatta@marvell.com, hkelam@marvell.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (refs/heads/master): On Tue, 28 Sep 2021 11:25:26 +0530 you wrote: > Current driver uses software CQ head pointer to poll on CQE > header in memory to determine if CQE is valid. Software needs > to make sure, that the reads of the CQE do not get re-ordered > so much that it ends up with an inconsistent view of the CQE. > To ensure that DMB barrier after read to first CQE cacheline > and before reading of the rest of the CQE is needed. > But having barrier for every CQE read will impact the performance, > instead use hardware CQ head and tail pointers to find the > valid number of CQEs. > > [...] Here is the summary with links: - [net-next,v3] octeontx2-pf: Use hardware register for CQE count https://git.kernel.org/netdev/net-next/c/af3826db74d1 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html