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=-4.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 2C805C433DF for ; Thu, 18 Jun 2020 16:01:02 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 43FDC2075E for ; Thu, 18 Jun 2020 16:01:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="NtRbu2cP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 43FDC2075E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 49nmr53FHMzDqWZ for ; Fri, 19 Jun 2020 02:00:53 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=kuba@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=default header.b=NtRbu2cP; dkim-atps=neutral Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 49nmm65Bb0zDqBN for ; Fri, 19 Jun 2020 01:57:26 +1000 (AEST) Received: from kicinski-fedora-PC1C0HJN (unknown [163.114.132.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 7A63120732; Thu, 18 Jun 2020 15:57:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1592495843; bh=yOK9ZKCV3aiXNG3VrKpU+lumJHKMGUHzmP+zlrZ+sHI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=NtRbu2cPtnbgaGOMa0dnWnL1RR3W8MiGitf3FvkvVz9kshmKUIS7Z50lDxYKU8F7F 4DWhSkltMASyAZpN+SBwaoRuPPBojQH5mPjgZp7ryRjaceWh7pJd9AxpSOZEh6nS2F W2CDlpX6fT+FR0mb5bPNnU+yeQT8m1//fgLk/K3Y= Date: Thu, 18 Jun 2020 08:57:22 -0700 From: Jakub Kicinski To: Thomas Falcon Subject: Re: [PATCH net] ibmveth: Fix max MTU limit Message-ID: <20200618085722.110f3702@kicinski-fedora-PC1C0HJN> In-Reply-To: <1592495026-27202-1-git-send-email-tlfalcon@linux.ibm.com> References: <1592495026-27202-1-git-send-email-tlfalcon@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Thu, 18 Jun 2020 10:43:46 -0500 Thomas Falcon wrote: > The max MTU limit defined for ibmveth is not accounting for > virtual ethernet buffer overhead, which is twenty-two additional > bytes set aside for the ethernet header and eight additional bytes > of an opaque handle reserved for use by the hypervisor. Update the > max MTU to reflect this overhead. > > Signed-off-by: Thomas Falcon How about Fixes: d894be57ca92 ("ethernet: use net core MTU range checking in more drivers") Fixes: 110447f8269a ("ethernet: fix min/max MTU typos") ?