From mboxrd@z Thu Jan 1 00:00:00 1970 From: Patrick McHardy Subject: Re: bonds/vlan combinations and device features Date: Mon, 08 Jun 2009 15:43:34 +0200 Message-ID: <4A2D1586.2020906@trash.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: Jay Vosburgh , netdev@vger.kernel.org To: Or Gerlitz Return-path: Received: from stinky.trash.net ([213.144.137.162]:35953 "EHLO stinky.trash.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752029AbZFHNnh (ORCPT ); Mon, 8 Jun 2009 09:43:37 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Or Gerlitz wrote: > Another questions which is more related to the vlan (8021q) driver, is the lack of > vlan passthrough (e.g setting dev->vlan_features) by most of the drivers (all expect > for the Intel ones...) as pointed by Jay earlier on these threads. Is there a real > issue for other HW vendors to support this or its something that got fogotten through > the introduction of the vlan_features? I traced 289c79a4... "vlan: Use bitmask of > feature flags instead of seperate feature bits" be to the 8021q patch and ad31c402... > "ixbge: allow vlan devices to use TSO and TCP CSUM offload" et al to be Intel drivers > patches, but I didn't see other drivers support. > > Patrick, assuming that vlans are common and people expect NIC to support TCP offloads > such as checksum and large-send, what is the actual gap here per your view? Its up to the maintainers or people owning a device which doesn't yet set those flags. I do not know which other devices support this.