From patchwork Wed Feb 1 10:24:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13124112 X-Patchwork-Delegate: bpf@iogearbox.net Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2EA0BC636D4 for ; Wed, 1 Feb 2023 10:25:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231567AbjBAKZX (ORCPT ); Wed, 1 Feb 2023 05:25:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34894 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231637AbjBAKZU (ORCPT ); Wed, 1 Feb 2023 05:25:20 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D4623B3E5; Wed, 1 Feb 2023 02:25:17 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E40BBB8214A; Wed, 1 Feb 2023 10:25:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1866AC433EF; Wed, 1 Feb 2023 10:25:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1675247114; bh=EUEjHYCFZLBlSjnOAZ24J2T1iHJ/3Lz1NQeBwSmXZYY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SVuI+zUN+v/ek6atT1jY434aD2dCGtiIjY+g9Le3DZhK1eUvqLDLkHkbt1VZN2fdd 7zUL77gnq7DUrn6Nk4og1Ex6zCaJ3cgr1y8YvDOmmb6bbBWsHaVSkkH5yOHK6BUOO2 699hJV5Yr0qfhIMqe/FcESgRfY/UVXXFzf7+IhB/wARSkHHKlTlHflqJVi6rCEWkEp z/ZZKsy7EPKAVwyxsbP3agqy4Sl/VeJDEHedv0NSY6BbleiusKe+I0g0UJuvPM/L40 ngaTjdBEqs1CyE3Bo4vekiEQotEhNw+Hh60Q+SU5xA+u8YWSAb7Cydsl7FXPLgOc34 XsS5KqerglTcw== From: Lorenzo Bianconi To: bpf@vger.kernel.org Cc: netdev@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, hawk@kernel.org, toke@redhat.com, memxor@gmail.com, alardam@gmail.com, saeedm@nvidia.com, anthony.l.nguyen@intel.com, gospo@broadcom.com, vladimir.oltean@nxp.com, nbd@nbd.name, john@phrozen.org, leon@kernel.org, simon.horman@corigine.com, aelior@marvell.com, christophe.jaillet@wanadoo.fr, ecree.xilinx@gmail.com, mst@redhat.com, bjorn@kernel.org, magnus.karlsson@intel.com, maciej.fijalkowski@intel.com, intel-wired-lan@lists.osuosl.org, lorenzo.bianconi@redhat.com, martin.lau@linux.dev, sdf@google.com, gerhard@engleder-embedded.com Subject: [PATCH v5 bpf-next 3/8] xsk: add usage of XDP features flags Date: Wed, 1 Feb 2023 11:24:19 +0100 Message-Id: <45a98ec67b4556a6a22dfd85df3eb8276beeeb74.1675245258.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: bpf@iogearbox.net From: Marek Majtyka Change necessary condition check for XSK from ndo functions to xdp features flags. Signed-off-by: Marek Majtyka Signed-off-by: Lorenzo Bianconi --- net/xdp/xsk_buff_pool.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/net/xdp/xsk_buff_pool.c b/net/xdp/xsk_buff_pool.c index ed6c71826d31..b2df1e0f8153 100644 --- a/net/xdp/xsk_buff_pool.c +++ b/net/xdp/xsk_buff_pool.c @@ -140,6 +140,10 @@ static void xp_disable_drv_zc(struct xsk_buff_pool *pool) } } +#define NETDEV_XDP_ACT_ZC (NETDEV_XDP_ACT_BASIC | \ + NETDEV_XDP_ACT_REDIRECT | \ + NETDEV_XDP_ACT_XSK_ZEROCOPY) + int xp_assign_dev(struct xsk_buff_pool *pool, struct net_device *netdev, u16 queue_id, u16 flags) { @@ -178,8 +182,7 @@ int xp_assign_dev(struct xsk_buff_pool *pool, /* For copy-mode, we are done. */ return 0; - if (!netdev->netdev_ops->ndo_bpf || - !netdev->netdev_ops->ndo_xsk_wakeup) { + if ((netdev->xdp_features & NETDEV_XDP_ACT_ZC) != NETDEV_XDP_ACT_ZC) { err = -EOPNOTSUPP; goto err_unreg_pool; }