From patchwork Tue Jan 2 02:41:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yanglong Wu X-Patchwork-Id: 32821 X-Patchwork-Delegate: helin.zhang@intel.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 9FB372A5E; Tue, 2 Jan 2018 03:42:16 +0100 (CET) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 0D3CD16E for ; Tue, 2 Jan 2018 03:42:14 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Jan 2018 18:42:13 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.45,494,1508828400"; d="scan'208";a="6754332" Received: from wuyanglong.sh.intel.com ([10.67.111.98]) by fmsmga008.fm.intel.com with ESMTP; 01 Jan 2018 18:42:12 -0800 From: Yanglong Wu To: dev@dpdk.org Cc: beilei.xing@intel.com, Yanglong Wu Date: Tue, 2 Jan 2018 10:41:23 +0800 Message-Id: <20180102024123.128042-1-yanglong.wu@intel.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180102022819.127981-1-yanglong.wu@intel.com> References: <20180102022819.127981-1-yanglong.wu@intel.com> Subject: [dpdk-dev] [PATCH v5] net/i40e: support mac loopback 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" According to loopback mode, setup loopback link or not. If loopback link is setted, packets in tx will be sent to rx directly. Loopback mode can be used to support testing task Signed-off-by: Yanglong Wu Acked-by: Beilei Xing --- v2: fix coding style issue --- v3: update release DOC --- v4: remove 'FVL' --- v5: fix coding style isssue --- doc/guides/rel_notes/release_18_02.rst | 6 ++++++ drivers/net/i40e/i40e_ethdev.c | 10 ++++++++++ drivers/net/i40e/i40e_ethdev.h | 3 ++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/doc/guides/rel_notes/release_18_02.rst b/doc/guides/rel_notes/release_18_02.rst index 24b67bb8b..81be184db 100644 --- a/doc/guides/rel_notes/release_18_02.rst +++ b/doc/guides/rel_notes/release_18_02.rst @@ -41,6 +41,12 @@ New Features Also, make sure to start the actual text at the margin. ========================================================= +* **Added a mac loopback function for the i40e.** + + Add a mac loopback function for the i40e in order to support test + task asked by users. According to device configuration, it will + setup TX->RX loopback link or not. If loopback link is setted, + packets in tx will be sent to rx directly. API Changes ----------- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 0739f65a8..e8bdb335a 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -2047,6 +2047,16 @@ i40e_dev_start(struct rte_eth_dev *dev) true, NULL); } } + + /* Enable mac loopback mode */ + if (dev->data->dev_conf.lpbk_mode == I40E_AQ_LB_MODE_NONE || + dev->data->dev_conf.lpbk_mode == I40E_AQ_LB_PHY_LOCAL) { + ret = i40e_aq_set_lb_modes(hw, dev->data->dev_conf.lpbk_mode, NULL); + if (ret != I40E_SUCCESS) { + PMD_DRV_LOG(ERR, "fail to set loopback link"); + goto err_up; + } + } /* Apply link configure */ if (dev->data->dev_conf.link_speeds & ~(ETH_LINK_SPEED_100M | diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index cd67453d1..2ad9858e4 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -61,7 +61,8 @@ #define I40E_NUM_MACADDR_MAX 64 /* Maximum number of VFs */ #define I40E_MAX_VF 128 - +/*flag of no loopback*/ +#define I40E_AQ_LB_MODE_NONE 0x0 /* * vlan_id is a 12 bit number. * The VFTA array is actually a 4096 bit array, 128 of 32bit elements.