From patchwork Thu Jul 23 11:42:34 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 1334806 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Original-To: incoming-bpf@patchwork.ozlabs.org Delivered-To: patchwork-incoming-bpf@bilbo.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=bpf-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=c0Vt+N4y; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BC9Tg2NtHz9sR4 for ; Thu, 23 Jul 2020 21:44:07 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728822AbgGWLoG (ORCPT ); Thu, 23 Jul 2020 07:44:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:46934 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726109AbgGWLoF (ORCPT ); Thu, 23 Jul 2020 07:44:05 -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 32B602086A; Thu, 23 Jul 2020 11:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595504645; bh=X0Z1R2jFkhJUSkoinGq+f0fTEPc2NQ4LnVDbVcmKlN4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c0Vt+N4yB66ODn9Un9v4b2zZ3kUB57Si4SEqTOYQH3W/mARNidw8XjTln8iLE6Cyy AwwbcgpEW38kdubEmndGSCziBqHfqFCoI9Q10Njo+Nb9yXUpmUC7KSO4F95tNLEYbf I7DslHO117RWcTkwmGSMaDSEQwWIdZAgMIvXFuzA= 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 22/22] net: mlx4: initialize mb bit in xdp_buff to 0 Date: Thu, 23 Jul 2020 13:42:34 +0200 Message-Id: <58f38cdce05d1126f4a9372f0e14de7718af0a14.1595503780.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.26.2 In-Reply-To: References: MIME-Version: 1.0 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/ethernet/mellanox/mlx4/en_rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c index 8a10285b0e10..0d42e81a7ad8 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c @@ -684,6 +684,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud xdp_prog = rcu_dereference(ring->xdp_prog); xdp.rxq = &ring->xdp_rxq; xdp.frame_sz = priv->frag_info[0].frag_stride; + xdp.mb = 0; doorbell_pending = 0; /* We assume a 1:1 mapping between CQEs and Rx descriptors, so Rx