From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2 net-next-2.6] ifb: add performance flags Date: Mon, 03 Jan 2011 11:40:33 -0800 (PST) Message-ID: <20110103.114033.28807428.davem@davemloft.net> References: <20101228230709.GA2088@del.dom.local> <1293999876.2535.211.camel@edumazet-laptop> <20110103193703.GA1977@del.dom.local> Mime-Version: 1.0 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: eric.dumazet@gmail.com, xiaosuo@gmail.com, pstaszewski@itcare.pl, netdev@vger.kernel.org To: jarkao2@gmail.com Return-path: Received: from 74-93-104-97-Washington.hfc.comcastbusiness.net ([74.93.104.97]:51380 "EHLO sunset.davemloft.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751285Ab1ACTkC convert rfc822-to-8bit (ORCPT ); Mon, 3 Jan 2011 14:40:02 -0500 In-Reply-To: <20110103193703.GA1977@del.dom.local> Sender: netdev-owner@vger.kernel.org List-ID: =46rom: Jarek Poplawski Date: Mon, 3 Jan 2011 20:37:03 +0100 > On Sun, Jan 02, 2011 at 09:24:36PM +0100, Eric Dumazet wrote: >> Le mercredi 29 d=E9cembre 2010 ?? 00:07 +0100, Jarek Poplawski a =E9= crit : >>=20 >> > Ingress is before vlans handler so these features and the >> > NETIF_F_HW_VLAN_TX flag seem useful for ifb considering >> > dev_hard_start_xmit() checks. >>=20 >> OK, here is v2 of the patch then, thanks everybody. >>=20 >>=20 >> [PATCH v2 net-next-2.6] ifb: add performance flags >>=20 >> IFB can use the full set of features flags (NETIF_F_SG | >> NETIF_F_FRAGLIST | NETIF_F_TSO | NETIF_F_NO_CSUM | NETIF_F_HIGHDMA) = to >> avoid unnecessary split of some packets (GRO for example) >>=20 >> Changli suggested to also set vlan_features, >=20 > He also suggested more GSO flags of which especially NETIF_F_TSO6 > seems interesting (wrt GRO)? I think at least TSO6 would very much be appropriate here.