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 B508EC433EC for ; Thu, 23 Jul 2020 11:43:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 89E7E2086A for ; Thu, 23 Jul 2020 11:43:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504592; bh=kIdzdnR5oMJlEqKbVwcJr7xWuFT9MuTFnSq8zco5Xws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=ufzKVrYXyC0tjwDs0567GJ7m31eXxpgM4+VOtQn/wGlg6haxFwuuHk5ZahKGkVqtG y4oC1jIR5nh+mKNWcj0y7N+glHRm4gL1rNGElB+ajQkS8M3ojyCO99+RgsPhvfLpw3 WgndBTVD7FD7a0F26/8OY5K/8uq9BCZoMkBewNSM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728643AbgGWLnM (ORCPT ); Thu, 23 Jul 2020 07:43:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:46066 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728627AbgGWLnM (ORCPT ); Thu, 23 Jul 2020 07:43:12 -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 9A5C922B43; Thu, 23 Jul 2020 11:43:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504591; bh=kIdzdnR5oMJlEqKbVwcJr7xWuFT9MuTFnSq8zco5Xws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a1frIJa5m8+u37LaF1Mq/PEe9zEkoVzOV12IBTUixGUwiVESGkZk1AdQZwRaLZKGR iGb9axurJNnGObf8PrCFkDKYgt5lPQoFZrS5yt3dpI0/8GetzTNNrgz2Di+IWDoMnL OwucPUF5JlYRv2kHtNQsTvTLvcuTWJ+KTsQmKWPs= 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 03/22] net: virtio_net: initialize mb bit of xdp_buff to 0 Date: Thu, 23 Jul 2020 13:42:15 +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/virtio_net.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index ba38765dc490..100fa9b60026 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -690,6 +690,7 @@ static struct sk_buff *receive_small(struct net_device *dev, xdp.data_meta = xdp.data; xdp.rxq = &rq->xdp_rxq; xdp.frame_sz = buflen; + xdp.mb = 0; orig_data = xdp.data; act = bpf_prog_run_xdp(xdp_prog, &xdp); stats->xdp_packets++; @@ -860,6 +861,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, xdp.data_meta = xdp.data; xdp.rxq = &rq->xdp_rxq; xdp.frame_sz = frame_sz - vi->hdr_len; + xdp.mb = 0; act = bpf_prog_run_xdp(xdp_prog, &xdp); stats->xdp_packets++; -- 2.26.2