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 X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A370EC3A59E for ; Mon, 2 Sep 2019 19:08:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 88E1F2168B for ; Mon, 2 Sep 2019 19:08:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727024AbfIBTIL (ORCPT ); Mon, 2 Sep 2019 15:08:11 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:35846 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726961AbfIBTIL (ORCPT ); Mon, 2 Sep 2019 15:08:11 -0400 Received: from localhost (unknown [63.64.162.234]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 256A415404E44; Mon, 2 Sep 2019 12:08:10 -0700 (PDT) Date: Mon, 02 Sep 2019 12:08:09 -0700 (PDT) Message-Id: <20190902.120809.714564690159194501.davem@davemloft.net> To: mcroce@redhat.com Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, maxime.chevallier@bootlin.com, mw@semihalf.com, antoine.tenart@bootlin.com, stefanc@marvell.com, nadavh@marvell.com, lorenzo@kernel.org Subject: Re: [PATCH net-next 0/2] mvpp2: per-cpu buffers From: David Miller In-Reply-To: <20190902102137.841-1-mcroce@redhat.com> References: <20190902102137.841-1-mcroce@redhat.com> X-Mailer: Mew version 6.8 on Emacs 26.2 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Mon, 02 Sep 2019 12:08:10 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Matteo Croce Date: Mon, 2 Sep 2019 12:21:35 +0200 > This patchset workarounds an PP2 HW limitation which prevents to use > per-cpu rx buffers. > The first patch is just a refactor to prepare for the second one. > The second one allocates percpu buffers if the following conditions are met: > - CPU number is less or equal 4 > - no port is using jumbo frames > > If the following conditions are not met at load time, of jumbo frame is enabled > later on, the shared allocation is reverted. Series applied to net-next.