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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D125AC61D85 for ; Tue, 21 Nov 2023 02:00:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233112AbjKUCAe (ORCPT ); Mon, 20 Nov 2023 21:00:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52570 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233027AbjKUCA3 (ORCPT ); Mon, 20 Nov 2023 21:00:29 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DA7FFCA for ; Mon, 20 Nov 2023 18:00:25 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPS id 5C001C433CA; Tue, 21 Nov 2023 02:00:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1700532025; bh=uQOCVxwdvKIvn2qxuwF9Et8pByqTASiiEmyLxL5+5aY=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=Gw4lbU4AsXiEukQxpYmO9dWCBSk7UzyOSgAoMhAXhgHE//njJ/jLtefyb5Gbdt4Y5 MDTaFIZOAXEk3S41b8X+CB7rKWIhI9iQPndHQYTU2NyXEJXqALx5o9CmOiO3U8dpKL l0u21iPW9raR0e/1DQsXmZYL6Mbc5kS5RcFBzmOTEz87SMOAEbWde7Zmvtx6crnXbh K6AewcOI0Ql4GuwZ8tLVaEusYyXnu5mVS59QZJAQLZ53X3Bsuoz5lqzNZDYmtCis5Y 3ts9+Eto3TZ3ETjSGp2LJgNDQLeZ6BCwuxgrGFVbclCvZvy7hFilyTOo9VryYcg6A6 eIEpPIRmmuxyw== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 433B6E000A4; Tue, 21 Nov 2023 02:00:25 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] net: microchip: lan743x : bidirectional throughput improvement From: patchwork-bot+netdevbpf@kernel.org Message-Id: <170053202527.14605.1759031814684336138.git-patchwork-notify@kernel.org> Date: Tue, 21 Nov 2023 02:00:25 +0000 References: <20231116054350.620420-1-vishvambarpanth.s@microchip.com> In-Reply-To: <20231116054350.620420-1-vishvambarpanth.s@microchip.com> To: Vishvambar Panth S Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, kuba@kernel.org, jacob.e.keller@intel.com, bryan.whitehead@microchip.com, UNGLinuxDriver@microchip.com, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Thu, 16 Nov 2023 11:13:50 +0530 you wrote: > The LAN743x/PCI11xxx DMA descriptors are always 4 dwords long, but the > device supports placing the descriptors in memory back to back or > reserving space in between them using its DMA_DESCRIPTOR_SPACE (DSPACE) > configurable hardware setting. Currently DSPACE is unnecessarily set to > match the host's L1 cache line size, resulting in space reserved in > between descriptors in most platforms and causing a suboptimal behavior > (single PCIe Mem transaction per descriptor). By changing the setting > to DSPACE=16 many descriptors can be packed in a single PCIe Mem > transaction resulting in a massive performance improvement in > bidirectional tests without any negative effects. > Tested and verified improvements on x64 PC and several ARM platforms > (typical data below) > > [...] Here is the summary with links: - [net-next] net: microchip: lan743x : bidirectional throughput improvement https://git.kernel.org/netdev/net-next/c/45933b2db91b You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html