From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752131AbbGHXBm (ORCPT ); Wed, 8 Jul 2015 19:01:42 -0400 Received: from shards.monkeyblade.net ([149.20.54.216]:38178 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751141AbbGHXBQ (ORCPT ); Wed, 8 Jul 2015 19:01:16 -0400 Date: Wed, 08 Jul 2015 16:01:14 -0700 (PDT) Message-Id: <20150708.160114.358447538011441747.davem@davemloft.net> To: haiyangz@microsoft.com Cc: netdev@vger.kernel.org, kys@microsoft.com, olaf@aepfle.de, jasowang@redhat.com, linux-kernel@vger.kernel.org, driverdev-devel@linuxdriverproject.org Subject: Re: [PATCH net-next,v2] hv_netvsc: Add support to set MTU reservation from guest side From: David Miller In-Reply-To: <1436217097-31102-1-git-send-email-haiyangz@microsoft.com> References: <1436217097-31102-1-git-send-email-haiyangz@microsoft.com> X-Mailer: Mew version 6.6 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) 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]); Wed, 08 Jul 2015 16:01:15 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Haiyang Zhang Date: Mon, 6 Jul 2015 14:11:37 -0700 > When packet encapsulation is in use, the MTU needs to be reduced for > headroom reservation. > The existing code takes the updated MTU value only from the host side. > But vSwitch extensions, such as Open vSwitch, require the flexibility > to change the MTU to different values from within a guest during the > lifecycle of a vNIC, when the encapsulation protocol is changed. The > patch supports this kind of MTU changes. > > Signed-off-by: Haiyang Zhang > Reviewed-by: K. Y. Srinivasan Applied, thanks.