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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 AF675C432C0 for ; Tue, 26 Nov 2019 10:09:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 89D8A20872 for ; Tue, 26 Nov 2019 10:09:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="fru48dzl" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727895AbfKZKJX (ORCPT ); Tue, 26 Nov 2019 05:09:23 -0500 Received: from mail-pg1-f194.google.com ([209.85.215.194]:37074 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727858AbfKZKJV (ORCPT ); Tue, 26 Nov 2019 05:09:21 -0500 Received: by mail-pg1-f194.google.com with SMTP id b10so8756297pgd.4; Tue, 26 Nov 2019 02:09:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=svo/DJZyqQpUo02aclcCc0QABc66WKSHZ6zQKD7a+Ow=; b=fru48dzlPmxdsRDObkYQrHO7JapBQH3c9E855CQRNtWbayYXM0dPryQmi5/whFOlpS GH/fVBCqvL0AWAPenfff2xRlbHbJeyN0FRY1MhHhuPk2ZlwRT9JdOfr9u4eKWjej1HTC q8G8loaTXtCX8EcOlrVw8hLTEh4GJrvM6aVuqV67oJNuisl5NmKblB7E+689x4Qa7LIa 4SQq9JNWkXDoaqj5RJYNpcE68Ha/YC5zbmY6IAUN1+QQ+4kJDzhyh+LTm5ZfOUaLxAhM sWkA++CI/tDwSaPETlK0YUOCfMRpR+0Q+b9L8Xpbo+zpd9pTLP+X50M8f7aw4NZ0ZvnG QC3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=svo/DJZyqQpUo02aclcCc0QABc66WKSHZ6zQKD7a+Ow=; b=nwb2W9BvkVhZ9X0MOfqyGcHkYYjKx/N90VDG1PHT1cHSPOktrdA3SpMP8uWL4UMdEx MPqDm6akNZe2eAaW5jADgjrCPMTfQx+zbsf/0zBXLkYyRSj/CidQjWPS4533W4GP42TN 3sK2rt4p5Cj3tagGA3JqkSElN/FxvfAM2995QnjDkCwm+CA2erOIgtYgxfCtECdlWbpp 5sOPWSPEBhXNd/u3bohA73EjNDRJ7DWRSK04Y8ZJkTQe7Dk+774iKAJGNZWvnT6higBs JpE4iUSfHX4xk6wfZx1uh6Iq3gHPhHRdolAWG3I2BSExlkoBtcsjCn2gAmbH3PmMTijU cCgQ== X-Gm-Message-State: APjAAAUNFXiNjtd1TJx8RcJUf8EvM7dPqi0oF+qe3m7OTwSJRaIDfPd+ f3Dxu+OnmI5698Me2Yhud5A= X-Google-Smtp-Source: APXvYqx1KJySu2VSUlGFNdx7ooxLmUOdCiiNdkl+RVxrLvkON5zLWT+2U/MjtFSUA7MS5Y/R8paLmg== X-Received: by 2002:a63:ff26:: with SMTP id k38mr39206249pgi.128.1574762960938; Tue, 26 Nov 2019 02:09:20 -0800 (PST) Received: from localhost.localdomain ([222.151.198.97]) by smtp.gmail.com with ESMTPSA id s24sm11848485pfh.108.2019.11.26.02.09.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Nov 2019 02:09:20 -0800 (PST) From: Prashant Bhole To: "David S . Miller" , "Michael S . Tsirkin" Cc: Prashant Bhole , Jason Wang , Alexei Starovoitov , Daniel Borkmann , Jakub Kicinski , Jesper Dangaard Brouer , John Fastabend , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , netdev@vger.kernel.org, qemu-devel@nongnu.org, kvm@vger.kernel.org Subject: [RFC net-next 10/18] tun: handle XDP_TX action of offloaded program Date: Tue, 26 Nov 2019 19:07:36 +0900 Message-Id: <20191126100744.5083-11-prashantbhole.linux@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191126100744.5083-1-prashantbhole.linux@gmail.com> References: <20191126100744.5083-1-prashantbhole.linux@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org When offloaded program returns XDP_TX, we need to inject the packet in Rx path of tun. This patch injects such packets in Rx path using tun_xdp_one. Signed-off-by: Prashant Bhole --- drivers/net/tun.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 8d6cdd3e5139..084ca95358fe 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2249,7 +2249,13 @@ static u32 tun_do_xdp_offload(struct tun_struct *tun, struct tun_file *tfile, case XDP_PASS: break; case XDP_TX: - /* fall through */ + tpage.page = NULL; + tpage.count = 0; + tun_xdp_one(tun, tfile, &xdp, &flush, &tpage, false); + tun_put_page(&tpage); + if (flush) + xdp_do_flush_map(); + break; case XDP_REDIRECT: /* fall through */ default: -- 2.20.1