Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752629AbbHTKD4 (ORCPT ); Thu, 20 Aug 2015 06:03:56 -0400 Received: from smtp02.citrix.com ([66.165.176.63]:9037 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751410AbbHTKDy (ORCPT ); Thu, 20 Aug 2015 06:03:54 -0400 X-IronPort-AV: E=Sophos;i="5.15,714,1432598400"; d="scan'208";a="296248003" Message-ID: <55D5A606.7020701@citrix.com> Date: Thu, 20 Aug 2015 11:03:50 +0100 From: David Vrabel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.8.0 MIME-Version: 1.0 To: Julien Grall , CC: , , , , "David Vrabel" , Boris Ostrovsky , Subject: Re: [Xen-devel] [PATCH v3 17/20] net/xen-netfront: Make it running on 64KB page granularity References: <1438966019-19322-1-git-send-email-julien.grall@citrix.com> <1438966019-19322-18-git-send-email-julien.grall@citrix.com> In-Reply-To: <1438966019-19322-18-git-send-email-julien.grall@citrix.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 830 Lines: 20 On 07/08/15 17:46, Julien Grall wrote: > The PV network protocol is using 4KB page granularity. The goal of this > patch is to allow a Linux using 64KB page granularity using network > device on a non-modified Xen. > > It's only necessary to adapt the ring size and break skb data in small > chunk of 4KB. The rest of the code is relying on the grant table code. > > Note that we allocate a Linux page for each rx skb but only the first > 4KB is used. We may improve the memory usage by extending the size of > the rx skb. Reviewed-by: David Vrabel David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/