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 EADB0C2D0C3 for ; Wed, 18 Dec 2019 08:13:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BD88824692 for ; Wed, 18 Dec 2019 08:13:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EizGMbb4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726826AbfLRINC (ORCPT ); Wed, 18 Dec 2019 03:13:02 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:36565 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726652AbfLRINC (ORCPT ); Wed, 18 Dec 2019 03:13:02 -0500 Received: by mail-pf1-f194.google.com with SMTP id x184so793298pfb.3 for ; Wed, 18 Dec 2019 00:13:01 -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=VWPabDljxt1vXjPxvTW6DeG3q7p28R03/ybNt6Nl24o=; b=EizGMbb4I2V8eqZfVkzEG/hFo4ZwreaZMS7h4rGgiBVB/D/XM5Q79KUiYH+vylti8G xNEeN11EELy63WuHVNThRkG+jcR548HwsydL2GitibA7S0AyHRwxlO6dFgxkYBrIMbev u9mjNYnFaNMyd4/k8Dqh6xj7TSTAul8kEYUk5MilXyoPZzpzzWr73vqgORlWBBtIdDWW BPDVldpKgrola93jdnXgEzeEIyd/fqhGFkguEeRaOuakg6AQB4YhgzrObYzLXW8pY/1e AvKwQx9kQ7lMgbJlg2Y/Crp8mDtpFzFEaB/ShyeFhCJaB25nDY/0w1y7P2rwsByoTN8x Ialg== 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=VWPabDljxt1vXjPxvTW6DeG3q7p28R03/ybNt6Nl24o=; b=dRF1dHr9DY9R0dMSRbPUXzJlpqNVLa519Pp3Czm49nWzY73/WovAlXIMbJbbiwsK/m cFnuNiqzUkRlaqn6dHElU1Fy5qOg6kNx3Xb0/04PMymdSKvgQhm9qLoD3q6skPRGK6zd B0V3lzRw/4jRcfYrgfnCnEzfKTz7gzcgNM8wPFpwTGguMSSFfjQagyTm3zUyKujEDapu APhPio/wbDWJkfOez0yBhSBa20ZjWPHOLYy9y36zARZoFjno5m3OzcrjR0Xuen6GR/sA THP6YZDLyoqEN51TSDDAoZ0trqorqDW7VmmtVOn4vOWC+DJ/3YIEdMHiT/x4nZ1kBc7S MlPw== X-Gm-Message-State: APjAAAXc52fJuRggwAWxpZN7DBx4eLV0ujVtMPzu4ZUnmgisl6PN+zx5 zJyXH2PGElVtyYX6XnS5bNo= X-Google-Smtp-Source: APXvYqxpnxfWR8C8H0Agx+uYaS2rKKO3nJFqc98Ut78KinbsES0wGn7ETxXI3AOlMa+a+/P0dqIonA== X-Received: by 2002:a62:1d52:: with SMTP id d79mr1665517pfd.144.1576656781385; Wed, 18 Dec 2019 00:13:01 -0800 (PST) Received: from localhost.localdomain ([222.151.198.97]) by smtp.gmail.com with ESMTPSA id s1sm1799181pgv.87.2019.12.18.00.12.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Dec 2019 00:13:00 -0800 (PST) From: Prashant Bhole To: "David S . Miller" , "Michael S . Tsirkin" , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer Cc: Prashant Bhole , Jason Wang , David Ahern , Jakub Kicinski , John Fastabend , Toshiaki Makita , Martin KaFai Lau , Song Liu , Yonghong Song , Andrii Nakryiko , netdev@vger.kernel.org Subject: [RFC net-next 13/14] tun: handle XDP_TX action of tx path XDP program Date: Wed, 18 Dec 2019 17:10:49 +0900 Message-Id: <20191218081050.10170-14-prashantbhole.linux@gmail.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191218081050.10170-1-prashantbhole.linux@gmail.com> References: <20191218081050.10170-1-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 the action code is 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 0701a7a80346..8e2fe0ad7955 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2266,7 +2266,13 @@ static u32 tun_do_xdp_tx(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: -- 2.21.0