From patchwork Tue Oct 9 17:56:42 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: stephen hemminger X-Patchwork-Id: 190393 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 0B6112C00D6 for ; Wed, 10 Oct 2012 05:01:50 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756645Ab2JISBj (ORCPT ); Tue, 9 Oct 2012 14:01:39 -0400 Received: from fiji.vyatta.com ([76.74.103.50]:51698 "EHLO fiji.vyatta.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756611Ab2JISB3 (ORCPT ); Tue, 9 Oct 2012 14:01:29 -0400 Received: by fiji.vyatta.com (Postfix, from userid 1051) id A18341540F9; Tue, 9 Oct 2012 09:49:19 -0700 (PDT) Message-Id: <20121009175714.765137515@vyatta.com> User-Agent: quilt/0.60-1 Date: Tue, 09 Oct 2012 10:56:42 -0700 From: Stephen Hemminger To: David Miller Cc: netdev@vger.kernel.org Subject: [PATCH 5/6] vxlan: add additional headroom References: <20121009175637.048993312@vyatta.com> Content-Disposition: inline; filename=vxlan-more-headroom.patch Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Tell upper layer protocols to allocate skb with additional headroom. This avoids allocation and copy in local packet sends. Signed-off-by: Stephen Hemminger --- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html --- a/drivers/net/vxlan.c 2012-10-09 10:49:08.238763697 -0700 +++ b/drivers/net/vxlan.c 2012-10-09 10:49:19.830648777 -0700 @@ -977,6 +977,7 @@ static void vxlan_setup(struct net_devic eth_hw_addr_random(dev); ether_setup(dev); + dev->hard_header_len = ETH_HLEN + VXLAN_HEADROOM; dev->netdev_ops = &vxlan_netdev_ops; dev->destructor = vxlan_free;