From patchwork Sun Sep 27 06:18:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawei Wang X-Patchwork-Id: 78900 X-Patchwork-Delegate: rasland@nvidia.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id E2835A04BC; Sun, 27 Sep 2020 08:23:17 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 329DA1D9D3; Sun, 27 Sep 2020 08:19:57 +0200 (CEST) Received: from mellanox.co.il (mail-il-dmz.mellanox.com [193.47.165.129]) by dpdk.org (Postfix) with ESMTP id 9C5FD1D978 for ; Sun, 27 Sep 2020 08:19:05 +0200 (CEST) Received: from Internal Mail-Server by MTLPINE1 (envelope-from jiaweiw@nvidia.com) with SMTP; 27 Sep 2020 09:18:59 +0300 Received: from nvidia.com (gen-l-vrt-280.mtl.labs.mlnx [10.237.45.1]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id 08R6IxJq020499; Sun, 27 Sep 2020 09:18:59 +0300 From: Jiawei Wang To: orika@nvidia.com, viacheslavo@nvidia.com, matan@nvidia.com, thomas@monjalon.net, ferruh.yigit@intel.com, marko.kovacevic@intel.com, arybchenko@solarflare.com Cc: dev@dpdk.org, rasland@nvidia.com, ian.stokes@intel.com, fbl@redhat.com, asafp@nvidia.com Date: Sun, 27 Sep 2020 09:18:58 +0300 Message-Id: <1601187539-112694-13-git-send-email-jiaweiw@nvidia.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1601187539-112694-1-git-send-email-jiaweiw@nvidia.com> References: <1600795158-67060-1-git-send-email-jiaweiw@nvidia.com> <1601187539-112694-1-git-send-email-jiaweiw@nvidia.com> Subject: [dpdk-dev] [PATCH v8 12/13] doc: add the sample flow limitation description X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Add description about the sample flow limitation. Sample Flow supports in NIC-Rx and E-Switch domains. Due to Metadata register c0 is deleted while doing the loopback, so that only support forward the sampling packet into E-Switch manager port, no additional action support in sample flow. Signed-off-by: Jiawei Wang Acked-by: Viacheslav Ovsiienko --- doc/guides/nics/mlx5.rst | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 211c0c5..c021f37 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -311,6 +311,12 @@ Limitations for some NICs (such as ConnectX-6 Dx and BlueField 2). The capability bit ``scatter_fcs_w_decap_disable`` shows NIC support. +- Sample flow: + + - Supports ``RTE_FLOW_ACTION_TYPE_SAMPLE`` action only within NIC Rx and E-Switch steering domain. + - The E-Switch Sample flow must have the eswitch_manager VPORT destination (PF or ECPF) and no additional actions. + - For ConnectX-5, the ``RTE_FLOW_ACTION_TYPE_SAMPLE`` is typically used as first action in the E-Switch egress flow if with header modify or encapsulation actions. + Statistics ----------