From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CFF90C433EA for ; Thu, 23 Jul 2020 11:43:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A15762086A for ; Thu, 23 Jul 2020 11:43:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504633; bh=5TlIfe9dJYm9MAMwsEV8WNJ4SLcVkvHN3n0gxW90yqk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KIbfgaO7UsTkF8itzU3EhPXf09OEbBtIVRpL/fmIezmAIqXuI6uG1Dgc2zT8QC7vp W56M7rAfBdljOdB9eE+fWfdTMdHfW3ZcBz5zVUdHoj6rOcBweu/nmQBvoKCxyDIGxf IdZ7CcvWPOHfq9XCGxjoSstXxBsmU3X3GzSY1iik= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728794AbgGWLnv (ORCPT ); Thu, 23 Jul 2020 07:43:51 -0400 Received: from mail.kernel.org ([198.145.29.99]:46692 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727769AbgGWLnv (ORCPT ); Thu, 23 Jul 2020 07:43:51 -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 086B422B43; Thu, 23 Jul 2020 11:43:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504630; bh=5TlIfe9dJYm9MAMwsEV8WNJ4SLcVkvHN3n0gxW90yqk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VVu6t0cIYGYG7t7/ZZKFn7NjMEs7PzFMCaptTyI0jFj4TFC+10Xta15VMP3J+mnBX Pv1C4gQ+Wm59KMXz9podgJqwtmVedULbhYPQZWUoLOanSWoyk4JxHF+vwGA4pc2ikO WT53melqleqijEknoYmVkniB+FqVd2NnsrKnMYp0= 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 17/22] net: tun: initialize mb bit in xdp_buff to 0 Date: Thu, 23 Jul 2020 13:42:29 +0200 Message-Id: X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@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/tun.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 7adeb91bd368..7007fc344460 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1674,6 +1674,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun, xdp.data_end = xdp.data + len; xdp.rxq = &tfile->xdp_rxq; xdp.frame_sz = buflen; + xdp.mb = 0; act = bpf_prog_run_xdp(xdp_prog, &xdp); if (act == XDP_REDIRECT || act == XDP_TX) { @@ -2421,6 +2422,7 @@ static int tun_xdp_one(struct tun_struct *tun, xdp_set_data_meta_invalid(xdp); xdp->rxq = &tfile->xdp_rxq; xdp->frame_sz = buflen; + xdp->mb = 0; act = bpf_prog_run_xdp(xdp_prog, xdp); err = tun_xdp_act(tun, xdp_prog, xdp, act); -- 2.26.2