From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paolo Bonzini Subject: Re: Disabling mergeable rx buffers for the guest Date: Tue, 16 Jul 2013 08:11:38 +0200 Message-ID: <51E4E41A.80905@redhat.com> References: <58539BF287296F4CB5EC3FF6E0639E07FB101C@ILMB2.corp.radware.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: "kvm@vger.kernel.org" To: Naor Shlomo Return-path: Received: from mail-qc0-f171.google.com ([209.85.216.171]:33681 "EHLO mail-qc0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396Ab3GPGLu (ORCPT ); Tue, 16 Jul 2013 02:11:50 -0400 Received: by mail-qc0-f171.google.com with SMTP id n1so161250qcw.2 for ; Mon, 15 Jul 2013 23:11:49 -0700 (PDT) In-Reply-To: <58539BF287296F4CB5EC3FF6E0639E07FB101C@ILMB2.corp.radware.com> Sender: kvm-owner@vger.kernel.org List-ID: Il 16/07/2013 07:09, Naor Shlomo ha scritto: > Hi, > > I am trying to disable the mergeable rx buffers for a Linux guest but I am currently unable to do so. > > I tried looking in the code of libvirt in order to find the "-global virtio-net-pci.mrg_rxbuf=off" but the only globals configured are: > PIIX4_PM.disable_s*, isa-fdc.drive, isa-fdc.bootindex, ram_size and vram_size > > Is there a way to configure the XML configuration for the domain and disable the mergeable buffers? > If not, is there a way to somehow do it from the guest? (I don't want to mess with the host) You can use something like this: Paolo