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Thu, 18 Jun 2020 20:51:49 +0000 (GMT) Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 38D69AC05B; Thu, 18 Jun 2020 20:51:49 +0000 (GMT) Received: from oc7186267434.ibm.com (unknown [9.160.31.222]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 18 Jun 2020 20:51:49 +0000 (GMT) Subject: Re: [PATCH net] ibmveth: Fix max MTU limit To: Jakub Kicinski References: <1592495026-27202-1-git-send-email-tlfalcon@linux.ibm.com> <20200618085722.110f3702@kicinski-fedora-PC1C0HJN> From: Thomas Falcon Message-ID: Date: Thu, 18 Jun 2020 15:51:48 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <20200618085722.110f3702@kicinski-fedora-PC1C0HJN> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.216, 18.0.687 definitions=2020-06-18_15:2020-06-18, 2020-06-18 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 lowpriorityscore=0 spamscore=0 impostorscore=0 mlxscore=0 cotscore=-2147483648 mlxlogscore=999 bulkscore=0 priorityscore=1501 malwarescore=0 phishscore=0 adultscore=0 clxscore=1011 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006180157 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 6/18/20 10:57 AM, Jakub Kicinski wrote: > 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") > > ? Thanks, do you need me to send a v2 with those tags? Tom