From patchwork Thu Mar 7 19:28:08 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pravin B Shelar X-Patchwork-Id: 225899 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 1D64A2C02F0 for ; Fri, 8 Mar 2013 06:26:40 +1100 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933317Ab3CGT0g (ORCPT ); Thu, 7 Mar 2013 14:26:36 -0500 Received: from na3sys009aog135.obsmtp.com ([74.125.149.84]:36266 "HELO na3sys009aog135.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S933225Ab3CGT0g (ORCPT ); Thu, 7 Mar 2013 14:26:36 -0500 Received: from mail-oa0-f70.google.com ([209.85.219.70]) (using TLSv1) by na3sys009aob135.postini.com ([74.125.148.12]) with SMTP ID DSNKUTjp3g9agB3I+j8VsGDOL+brRi2QWvNV@postini.com; Thu, 07 Mar 2013 11:26:35 PST Received: by mail-oa0-f70.google.com with SMTP id h2so5260643oag.5 for ; Thu, 07 Mar 2013 11:26:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:x-received:from:to:cc:subject:date:message-id:x-mailer :x-gm-message-state; bh=20X0EiGPgpNa7uRVy7gKO60hlM4FYRLiE5lb0oVT4SI=; b=eLI8L4l/xQZfQDownYC3boOjzUOC9Vdnp6pebaAIFmhEQ76ospcGzy5RMROnUcl0hb FGrXxDpNM2OMqkAABKipKEEyKSA3bvdHbrVhz/GwA/rJMguE3APrg0Ox62I6bi8SOk4d cvJB3zA9VVAmX1q+zgxAhKlHiP8Zl2BKeXZZ3lc3NopNecpN8CjAawkwtLU/XCh7An9i 9b60jBvGCCskgT1Vzoku52GCsRKtERdBtFUSunS39qYrS4FdZVoy61bQ+Mz1AWdIdZ5O 9FKuju0qHBU+1cF6ETZU6omQZ+tHHuLQu5aBAUmvWfdRX6jFfpwmiu5PQ5XIRs8RuoV+ zRDw== X-Received: by 10.60.27.66 with SMTP id r2mr27245312oeg.139.1362684382367; Thu, 07 Mar 2013 11:26:22 -0800 (PST) X-Received: by 10.60.27.66 with SMTP id r2mr27245309oeg.139.1362684382290; Thu, 07 Mar 2013 11:26:22 -0800 (PST) Received: from localhost ([64.125.181.92]) by mx.google.com with ESMTPS id d10sm2469790obk.1.2013.03.07.11.26.21 (version=TLSv1.1 cipher=RC4-SHA bits=128/128); Thu, 07 Mar 2013 11:26:21 -0800 (PST) From: Pravin B Shelar To: netdev@vger.kernel.org Cc: edumazet@google.com, jesse@nicira.com, Pravin B Shelar Subject: [PATCH net-next 2/2] tunnel: Inherit NETIF_F_SG for hw_enc_features. Date: Thu, 7 Mar 2013 11:28:08 -0800 Message-Id: <1362684488-1822-1-git-send-email-pshelar@nicira.com> X-Mailer: git-send-email 1.7.12.315.g682ce8b X-Gm-Message-State: ALoCoQmK7tnxKepAP/SlMQYLPvtQG4fa/xHJTln7B7Yt4dmyOh/hZwtjN+EhSHGWuVs5rmDYv8AlNPBkurBo/loCk1fKUDRL9BDrf9i3XHSLB70HtK1nggthF7Q+W5IEWhHS/3TcbTMEwlMoNZwx/DqHQPd5iqUFuPkutLHd0NECZMNBmGi7YqE= Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Inherit scatergather feature for tunnel devices to avoid copy for TSO packets of tunneling device like GRE. Signed-off-by: Pravin B Shelar --- net/core/dev.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index bb99993..90cee5b 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5205,6 +5205,10 @@ int register_netdevice(struct net_device *dev) */ dev->vlan_features |= NETIF_F_HIGHDMA; + /* Make NETIF_F_SG inheritable to tunnel devices. + */ + dev->hw_enc_features |= NETIF_F_SG; + ret = call_netdevice_notifiers(NETDEV_POST_INIT, dev); ret = notifier_to_errno(ret); if (ret)