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 75CC8C433F5 for ; Wed, 6 Oct 2021 13:48:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5BF8661166 for ; Wed, 6 Oct 2021 13:48:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238049AbhJFNu0 (ORCPT ); Wed, 6 Oct 2021 09:50:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56466 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238012AbhJFNuZ (ORCPT ); Wed, 6 Oct 2021 09:50:25 -0400 Received: from mail-vs1-xe35.google.com (mail-vs1-xe35.google.com [IPv6:2607:f8b0:4864:20::e35]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 71D6EC061749 for ; Wed, 6 Oct 2021 06:48:33 -0700 (PDT) Received: by mail-vs1-xe35.google.com with SMTP id 66so2946252vsd.11 for ; Wed, 06 Oct 2021 06:48:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=f1BakAplYMB4a4n6E6XHwcsoRqox7iup+XH7aypy+bI=; b=DKOlZEGSFyM1LgT8fwDWd2BqKO8Gon2W3PRNoRiEIGr+uOyujxwtw2K2kpS5YMT8Yv BSQbVUSMfuaxM3rQieBKmT8XHJAiB/SR/YxBdMZ3Vpij1aMg5BXwn7QnjftgbSMafyHn nt5N/aBeko1LDa/frbcSiQDp8i43AAs3gAM+qTq2zf9dJPcND+4hX6e7SORMhVjmunnC UFnLJMwwno3dnsYQ0m2TYbDBhe0+H89A3sBvMIK+Pew1wl1CE5Gq7L81qGgnCo47X639 rmjPwnfecBdciUgvyYpJNTpuJzee/5UGeE1TDhtr/AAcLuINVjAGVQeuCfyfuuxAwd9W U9Hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=f1BakAplYMB4a4n6E6XHwcsoRqox7iup+XH7aypy+bI=; b=TCEtwSTVKw2M76td595De0sIEPcVxLAo02gECEKl8QJz3idgV3qT53syCABDeUYVjb wO4t955Hx7edYmybiuD+7yeVaYS6M2FTMBdPVYPXIEgBeZdIJEo9J92td0L8nm7UDHGK SZlTJMrVe8uS0LhkEijlfUL4DZCX81tCjAgiix9Vlub3iTA53J/ActecXs/hJMz2npnS 6O69R3JIX8JlJi1xoXX49cnR37CI0pqAqWHUQkGUZa6tMQT6YA82UPI6tlfBQAmj6ohC vJwmyVEVR5Gru0m5PLIF2PyBSPg30bBERNq7Y24TfupApO7ifFRo8wcSsK4D/3+MwzqF m51A== X-Gm-Message-State: AOAM531q2dzFGipU6Ju65S5eM2hWjp0KROvtEv1Pd96KoPBwDHHpXvgf QJGgCjsBb9EUMYA+xK0paFyvJmzhmzSJdWqVZSnm2QUt X-Google-Smtp-Source: ABdhPJwz/Ob8B+4kN0hVspROm9DWEDP7+//Dh5cDSB5u9OGfjWQNUh1RBU5mcjwFEj2qJuGTe97BAbnrhj5KApGmKIw= X-Received: by 2002:a67:e416:: with SMTP id d22mr23220193vsf.41.1633528112549; Wed, 06 Oct 2021 06:48:32 -0700 (PDT) MIME-Version: 1.0 References: <1633504726-30751-1-git-send-email-sbhatta@marvell.com> <20211006064328.28a5da0a@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> In-Reply-To: <20211006064328.28a5da0a@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> From: sundeep subbaraya Date: Wed, 6 Oct 2021 19:18:20 +0530 Message-ID: Subject: Re: [net-next PATCH v2 0/3] Add devlink params to vary cqe and rbuf To: Jakub Kicinski Cc: Subbaraya Sundeep , David Miller , netdev@vger.kernel.org, Sunil Kovvuri Goutham , hariprasad , Geetha sowjanya Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Jakub, On Wed, Oct 6, 2021 at 7:14 PM Jakub Kicinski wrote: > > On Wed, 6 Oct 2021 12:48:43 +0530 Subbaraya Sundeep wrote: > > Octeontx2 hardware writes a Completion Queue Entry(CQE) in the > > memory provided by software when a packet is received or > > transmitted. CQE has the buffer pointers (IOVAs) where the > > packet data fragments are written by hardware. One 128 byte > > CQE can hold 6 buffer pointers and a 512 byte CQE can hold > > 42 buffer pointers. Hence large packets can be received either > > by using 512 byte CQEs or by increasing size of receive buffers. > > Current driver only supports 128 byte CQEs. > > This patchset adds devlink params to change CQE and receive > > buffer sizes which inturn helps to tune whether many small size > > buffers or less big size buffers are needed to receive larger > > packets. Below is the patches description: > > nak. Stop ignoring feedback and reposting your patches. Sure and noted. Thanks, Sundeep