From mboxrd@z Thu Jan 1 00:00:00 1970 From: xiaohui.xin@intel.com Subject: [RFC][PATCH v6 13/19] To skip GRO if buffer is external currently. Date: Fri, 21 May 2010 17:30:29 +0800 Message-ID: <1274434235-5929-14-git-send-email-xiaohui.xin@intel.com> References: <1274434235-5929-1-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-2-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-3-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-4-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-5-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-6-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-7-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-8-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-9-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-10-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-11-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-12-git-send-email-xiaohui.xin@intel.com> <1274434235-5929-13-git-send-email-xiaohui.xin@intel.com> Cc: Xin Xiaohui To: netdev@vger.kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mst@redhat.com, mingo@elte.hu, davem@davemloft.net, jdike@linux.intel.com Return-path: Received: from mga01.intel.com ([192.55.52.88]:16449 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755511Ab0EUJYB (ORCPT ); Fri, 21 May 2010 05:24:01 -0400 In-Reply-To: <1274434235-5929-13-git-send-email-xiaohui.xin@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Xin Xiaohui Signed-off-by: Xin Xiaohui Signed-off-by: Zhao Yu Reviewed-by: Jeff Dike --- 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 dc2f225..6c6b2fe 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2787,6 +2787,10 @@ enum gro_result dev_gro_receive(struct napi_struct *napi, struct sk_buff *skb) if (skb_is_gso(skb) || skb_has_frags(skb)) goto normal; + /* currently GRO is not supported by mediate passthru */ + if (dev_is_mpassthru(skb->dev)) + goto normal; + rcu_read_lock(); list_for_each_entry_rcu(ptype, head, list) { if (ptype->type != type || ptype->dev || !ptype->gro_receive) -- 1.5.4.4