Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754555AbdGUPWf (ORCPT ); Fri, 21 Jul 2017 11:22:35 -0400 Received: from nbd.name ([46.4.11.11]:60386 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754585AbdGUPUs (ORCPT ); Fri, 21 Jul 2017 11:20:48 -0400 From: John Crispin To: "David S . Miller" , Eric Dumazet Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, John Crispin Subject: [RFC 1/2] net-next: add a dma_desc element to struct skb_shared_info Date: Fri, 21 Jul 2017 17:20:34 +0200 Message-Id: <20170721152035.6645-2-john@phrozen.org> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170721152035.6645-1-john@phrozen.org> References: <20170721152035.6645-1-john@phrozen.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 884 Lines: 26 In order to make HW flow offloading work in latest MediaTek silicon we need to propagate part of the RX DMS descriptor to the upper layers populating the flow offload engines HW tables. This patch adds an extra element to struct skb_shared_info allowing the ethernet drivers RX napi code to store the required information and make it persistent for the lifecycle of the skb and its clones. Signed-off-by: John Crispin --- include/linux/skbuff.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4093552be1de..db9576cd946b 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -426,6 +426,7 @@ struct skb_shared_info { unsigned int gso_type; u32 tskey; __be32 ip6_frag_id; + u32 dma_desc; /* * Warning : all fields before dataref are cleared in __alloc_skb() -- 2.11.0