From patchwork Fri Nov 24 03:12:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134597 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 343CB433B2; Fri, 24 Nov 2023 04:12:40 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id B133242FD7; Fri, 24 Nov 2023 04:12:22 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 2208142F69 for ; Fri, 24 Nov 2023 04:12:17 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Sc0Pk6y2CzWhnb; Fri, 24 Nov 2023 11:11:38 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:14 +0800 From: Huisong Li To: , , , Chengwen Feng , Jie Hai , Dongdong Liu CC: , Subject: [PATCH 1/6] doc/features: add RSS hash algorithm feature Date: Fri, 24 Nov 2023 11:12:13 +0800 Message-ID: <20231124031218.46664-2-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add hash algorithm feature introduced by 23.11 and fix some RSS features description. Fixes: 34ff088cc241 ("ethdev: set and query RSS hash algorithm") Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index 1a1dc16c1e..0d38c5c525 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -277,10 +277,12 @@ RSS hash Supports RSS hashing on RX. * **[uses] user config**: ``dev_conf.rxmode.mq_mode`` = ``RTE_ETH_MQ_RX_RSS_FLAG``. -* **[uses] user config**: ``dev_conf.rx_adv_conf.rss_conf``. +* **[uses] user config**: ``rss_conf.rss_hf``. * **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:RTE_ETH_RX_OFFLOAD_RSS_HASH``. * **[provides] rte_eth_dev_info**: ``flow_type_rss_offloads``. * **[provides] mbuf**: ``mbuf.ol_flags:RTE_MBUF_F_RX_RSS_HASH``, ``mbuf.rss``. +* **[related] API**: ``rte_eth_dev_configure``, ``rte_eth_dev_rss_hash_update`` + ``rte_eth_dev_rss_hash_conf_get()``. .. _nic_features_inner_rss: @@ -288,7 +290,7 @@ Supports RSS hashing on RX. Inner RSS --------- -Supports RX RSS hashing on Inner headers. +Supports RX RSS hashing on Inner headers by rte_flow API. * **[uses] rte_flow_action_rss**: ``level``. * **[uses] rte_eth_rxconf,rte_eth_rxmode**: ``offloads:RTE_ETH_RX_OFFLOAD_RSS_HASH``. @@ -303,9 +305,25 @@ RSS key update Supports configuration of Receive Side Scaling (RSS) hash computation. Updating Receive Side Scaling (RSS) hash key. -* **[implements] eth_dev_ops**: ``rss_hash_update``, ``rss_hash_conf_get``. +* **[implements] eth_dev_ops**: ``dev_configure``, ``rss_hash_update``, ``rss_hash_conf_get``. +* **[uses] user config**: ``rss_conf.rss_key``, ``rss_conf.rss_key_len`` * **[provides] rte_eth_dev_info**: ``hash_key_size``. -* **[related] API**: ``rte_eth_dev_rss_hash_update()``, +* **[related] API**: ``rte_eth_dev_configure``, ``rte_eth_dev_rss_hash_update()``, + ``rte_eth_dev_rss_hash_conf_get()``. + + +.. _nic_features_rss_hash_algo_update: + +RSS hash algorithm update +------------------------- + +Supports configuration of Receive Side Scaling (RSS) hash algorithm. Updating +RSS hash algorithm. + +* **[implements] eth_dev_ops**: ``dev_configure``, ``rss_hash_update``, ``rss_hash_conf_get``. +* **[uses] user config**: ``rss_conf.algorithm`` +* **[provides] rte_eth_dev_info**: ``rss_algo_capa``. +* **[related] API**: ``rte_eth_dev_configure``, ``rte_eth_dev_rss_hash_update()``, ``rte_eth_dev_rss_hash_conf_get()``. From patchwork Fri Nov 24 03:12:14 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134596 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8286D433B2; Fri, 24 Nov 2023 04:12:33 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 7876542FE3; Fri, 24 Nov 2023 04:12:21 +0100 (CET) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id 26DAB42FC5 for ; Fri, 24 Nov 2023 04:12:17 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.55]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4Sc0LN42pYz1P8nD; Fri, 24 Nov 2023 11:08:44 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:15 +0800 From: Huisong Li To: , , , Changchun Ouyang CC: , Subject: [PATCH 2/6] doc/features: add link up/down feature Date: Fri, 24 Nov 2023 11:12:14 +0800 Message-ID: <20231124031218.46664-3-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add link up/down feature for features.rst. Fixes: 915e67837586 ("ethdev: API for link up and down") Cc: stable@dpdk.org Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index 0d38c5c525..f14962a6c3 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -45,6 +45,10 @@ Supports getting the link speed, duplex mode and link state (up/down). * **[implements] rte_eth_dev_data**: ``dev_link``. * **[related] API**: ``rte_eth_link_get()``, ``rte_eth_link_get_nowait()``. +Set link up/down an Ethernet device. + +* **[implements] eth_dev_ops**: ``dev_set_link_up``, ``dev_set_link_down``. +* **[related] API**: ``rte_eth_dev_set_link_up()``, ``rte_eth_dev_set_link_down()``. .. _nic_features_link_status_event: From patchwork Fri Nov 24 03:12:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134595 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6D15C433B2; Fri, 24 Nov 2023 04:12:26 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 59F6042FD9; Fri, 24 Nov 2023 04:12:20 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 1E6B840A6E for ; Fri, 24 Nov 2023 04:12:17 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4Sc0KW5Y10zSgwl; Fri, 24 Nov 2023 11:07:59 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:15 +0800 From: Huisong Li To: , , , Marc Sune CC: , Subject: [PATCH 3/6] doc/features: add features for link speeds Date: Fri, 24 Nov 2023 11:12:15 +0800 Message-ID: <20231124031218.46664-4-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add features for link speeds. Fixes: 82113036e4e5 ("ethdev: redesign link speed config") Cc: stable@dpdk.org Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index f14962a6c3..d13e43ae81 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -34,6 +34,17 @@ Supports getting the speed capabilities that the current device is capable of. * **[related] API**: ``rte_eth_dev_info_get()``. +.. _nic_features_link_speeds_config: + +Link speed configuration +------------------------ + +Supports configurating fixed speed and link autonegotiation. + +* **[uses] user config**: ``dev_conf.link_speeds:RTE_ETH_LINK_SPEED_*``. +* **[related] API**: ``rte_eth_dev_configure()``. + + .. _nic_features_link_status: Link status From patchwork Fri Nov 24 03:12:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134598 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 8A1E6433B2; Fri, 24 Nov 2023 04:12:46 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id E009242FFF; Fri, 24 Nov 2023 04:12:23 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id D19C1409FA for ; Fri, 24 Nov 2023 04:12:18 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Sc0Py65HvzvQvY; Fri, 24 Nov 2023 11:11:50 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:16 +0800 From: Huisong Li To: , , , Cristian Dumitrescu , Jerin Jacob , Balasubramanian Manoharan , Hemant Agrawal CC: , Subject: [PATCH 4/6] doc/features: add Traffic Manager features Date: Fri, 24 Nov 2023 11:12:16 +0800 Message-ID: <20231124031218.46664-5-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add Traffic Manager features. Fixes: 5d109deffa87 ("ethdev: add traffic management API") Cc: stable@dpdk.org Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index d13e43ae81..ef061759c7 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -773,6 +773,19 @@ Supports congestion management. ``rte_eth_cman_config_set()``, ``rte_eth_cman_config_get()``. +.. _nic_features_traffic_manager: + +Traffic manager +--------------- + +Supports Traffic manager. + +* **[implements] rte_tm_ops**: ``capabilities_get``, ``shaper_profile_add``, + ``hierarchy_commit`` and so on. +* **[related] API**: ``rte_tm_capabilities_get()``, ``rte_tm_shaper_profile_add()``, + ``rte_tm_hierarchy_commit()`` and so on. + + .. _nic_features_fw_version: FW version From patchwork Fri Nov 24 03:12:17 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134599 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 70F07433B2; Fri, 24 Nov 2023 04:12:53 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 0B50343246; Fri, 24 Nov 2023 04:12:25 +0100 (CET) Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by mails.dpdk.org (Postfix) with ESMTP id EA3CF40A6E for ; Fri, 24 Nov 2023 04:12:18 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4Sc0LQ37xXz1P8nP; Fri, 24 Nov 2023 11:08:46 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:16 +0800 From: Huisong Li To: , , , Ray Kinsella , Ajit Khaparde , =?utf-8?q?Morten_Br=C3=B8rup?= , Ferruh Yigit , "Min Hu (Connor)" CC: , Subject: [PATCH 5/6] doc/features: add dump device private information feature Date: Fri, 24 Nov 2023 11:12:17 +0800 Message-ID: <20231124031218.46664-6-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add dump device private information feature. Fixes: edcf22c6d389 ("ethdev: introduce dump API") Cc: stable@dpdk.org Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index ef061759c7..c5c4dbf745 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -832,6 +832,18 @@ registers and register size). * **[related] API**: ``rte_eth_dev_get_reg_info()``. +.. _nic_features_device_private_info_dump: + +Device private information dump +------------------------------- + +Supports retrieving device private information to a file. Provided data and +the order depends on PMD. + +* **[implements] eth_dev_ops**: ``eth_dev_priv_dump``. +* **[related] API**: ``rte_eth_dev_priv_dump()``. + + .. _nic_features_led: LED From patchwork Fri Nov 24 03:12:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "lihuisong (C)" X-Patchwork-Id: 134600 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6EBFE433B2; Fri, 24 Nov 2023 04:13:00 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 380AB43252; Fri, 24 Nov 2023 04:12:26 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id DCDA440A6E for ; Fri, 24 Nov 2023 04:12:19 +0100 (CET) Received: from kwepemm000004.china.huawei.com (unknown [172.30.72.56]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4Sc0LQ20x9zsRNM; Fri, 24 Nov 2023 11:08:46 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by kwepemm000004.china.huawei.com (7.193.23.18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.35; Fri, 24 Nov 2023 11:12:17 +0800 From: Huisong Li To: , , , Qinglai Xiao , Venky Venkatesan , Ivan Boule CC: , Subject: [PATCH 6/6] doc/features: add feature for loopback mode Date: Fri, 24 Nov 2023 11:12:18 +0800 Message-ID: <20231124031218.46664-7-lihuisong@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20231124031218.46664-1-lihuisong@huawei.com> References: <20231123135916.33315-1-lihuisong@huawei.com> <20231124031218.46664-1-lihuisong@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemm000004.china.huawei.com (7.193.23.18) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Add feature for loopback mode. Fixes: db0359256170 ("ixgbe: add Tx->Rx loopback mode for 82599") Cc: stable@dpdk.org Signed-off-by: Huisong Li --- doc/guides/nics/features.rst | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/doc/guides/nics/features.rst b/doc/guides/nics/features.rst index c5c4dbf745..caf1258554 100644 --- a/doc/guides/nics/features.rst +++ b/doc/guides/nics/features.rst @@ -45,6 +45,18 @@ Supports configurating fixed speed and link autonegotiation. * **[related] API**: ``rte_eth_dev_configure()``. +.. _nic_features_loopback: + +Loopback configuration +---------------------- + +Supports configurating loopback mode. The default value 0 is to disable +loopback mode and other value is defined by given Ethernet controller. + +* **[uses] user config**: ``dev_conf.lpbk_mode``. +* **[related] API**: ``rte_eth_dev_configure()``. + + .. _nic_features_link_status: Link status