From patchwork Thu Jul 23 11:42:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 1334772 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=default header.b=XRMLtFze; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BC9Sk2fTZz9sRR for ; Thu, 23 Jul 2020 21:43:18 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728687AbgGWLnR (ORCPT ); Thu, 23 Jul 2020 07:43:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:46160 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728567AbgGWLnR (ORCPT ); Thu, 23 Jul 2020 07:43:17 -0400 Received: from lore-desk.redhat.com (unknown [151.48.142.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id BA68520B1F; Thu, 23 Jul 2020 11:43:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504597; bh=Fw24wTjhX6/veV0b6MJa4ylEAknEnmUlJ5/TqSGR07c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XRMLtFzeJJK9jx4pu5W8ym16Q2atoYT4gcywh+FfskDt/ioaa3LhAyNrtxzjT3TzX rvTo0MxcXNLv65ELEx60lcKR/mtKvvweASEi9Z3Jx3eOADd9Y+XsS/rB0gpzwq8hg0 /nZbEYAe7FKhIez4xIVQ7pzW5G7xr5EPHUv9mrOw= From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: bpf@vger.kernel.org, davem@davemloft.net, ast@kernel.org, brouer@redhat.com, daniel@iogearbox.net, lorenzo.bianconi@redhat.com, echaudro@redhat.com, sameehj@amazon.com, kuba@kernel.org Subject: [RFC net-next 05/22] net: veth: initialize mb bit of xdp_buff to 0 Date: Thu, 23 Jul 2020 13:42:17 +0200 Message-Id: <40621d3a47889b83eb79a4d519872f84c89dd558.1595503780.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Initialize multi-buffer bit (mb) to 0 in xdp_buff data structure. This is a preliminary patch to enable xdp multi-buffer support. Signed-off-by: Lorenzo Bianconi --- drivers/net/veth.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/veth.c b/drivers/net/veth.c index b594f03eeddb..463865c513b2 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -711,6 +711,7 @@ static struct sk_buff *veth_xdp_rcv_skb(struct veth_rq *rq, /* SKB "head" area always have tailroom for skb_shared_info */ xdp.frame_sz = (void *)skb_end_pointer(skb) - xdp.data_hard_start; xdp.frame_sz += SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + xdp.mb = 0; orig_data = xdp.data; orig_data_end = xdp.data_end;