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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 44CC3C43381 for ; Thu, 7 Mar 2019 17:43:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2169B205F4 for ; Thu, 7 Mar 2019 17:43:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726428AbfCGRny (ORCPT ); Thu, 7 Mar 2019 12:43:54 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:52216 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726180AbfCGRny (ORCPT ); Thu, 7 Mar 2019 12:43:54 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (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 EC9FD147B061C; Thu, 7 Mar 2019 09:43:53 -0800 (PST) Date: Thu, 07 Mar 2019 09:43:53 -0800 (PST) Message-Id: <20190307.094353.2006935561616629019.davem@davemloft.net> To: skalluru@marvell.com Cc: netdev@vger.kernel.org, aelior@marvell.com, mkalderon@marvell.com Subject: Re: [PATCH net 1/1] qede: Fix internal loopback failure with jumbo mtu configuration From: David Miller In-Reply-To: <20190307155635.13968-1-skalluru@marvell.com> References: <20190307155635.13968-1-skalluru@marvell.com> X-Mailer: Mew version 6.8 on Emacs 26.1 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]); Thu, 07 Mar 2019 09:43:54 -0800 (PST) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Sudarsana Reddy Kalluru Date: Thu, 7 Mar 2019 07:56:35 -0800 > Driver uses port-mtu as packet-size for the loopback traffic. This patch > limits the max packet size to 1.5K to avoid data being split over multiple > buffer descriptors (BDs) in cases where MTU > PAGE_SIZE. > > Signed-off-by: Sudarsana Reddy Kalluru > Signed-off-by: Ariel Elior Applied.