From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id BEB19A0C56; Wed, 8 Sep 2021 10:37:47 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 466B9411C3; Wed, 8 Sep 2021 10:36:49 +0200 (CEST) Received: from smtpproxy21.qq.com (smtpbg702.qq.com [203.205.195.102]) by mails.dpdk.org (Postfix) with ESMTP id 0375E411A9 for ; Wed, 8 Sep 2021 10:36:47 +0200 (CEST) X-QQ-mid: bizesmtp47t1631090204tdqap80a Received: from wxdbg.localdomain.com (unknown [183.129.236.74]) by esmtp6.qq.com (ESMTP) with id ; Wed, 08 Sep 2021 16:36:43 +0800 (CST) X-QQ-SSF: 01400000002000E0G000B00A0000000 X-QQ-FEAT: 83ShfzFP0oC6bJ7C+d6Pgqvbsoj0NjLnna/InzWGePxQOp8E5JgXLZYRO1zcx rjljFCZmuhDhwSxRMF1Rm5vWbtQDe5KH510fnCOeJft/9IOkJWUS/xVOMgkrhgYGrsby45Z cGkH44x512mtZNRt++tFH9nvWeqVzbHsqQDwKGHMLt7p4gIUpfm9h+u4cveAPsymFLjeDVS v0KHUsJW4nTDQ7iupD72MZidQOm46yjY+am6PVI8ndv8nGg1xwto09qoTrUfBhr5SKqUp+I dJIqjQMN0NoSwnCW5e3gMhaer8fNSw+XnqJs4ChmWfcfmQ1wmSR7ZZAcuq0KOF5OgWCSFPC Cxe6ChxwTfIDY42LkLbSMk8ANs9SMp4R/5tW2Pf X-QQ-GoodBg: 2 From: Jiawen Wu To: dev@dpdk.org Cc: Jiawen Wu Date: Wed, 8 Sep 2021 16:37:39 +0800 Message-Id: <20210908083758.312055-14-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20210908083758.312055-1-jiawenwu@trustnetic.com> References: <20210908083758.312055-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybgforeign:qybgforeign6 X-QQ-Bgrelay: 1 Subject: [dpdk-dev] [PATCH 13/32] net/ngbe: add loopback mode 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 Sender: "dev" Support loopback operation mode. Signed-off-by: Jiawen Wu --- drivers/net/ngbe/ngbe_ethdev.c | 6 ++++++ drivers/net/ngbe/ngbe_rxtx.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+) diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c index 5566bf26a9..9caca55df3 100644 --- a/drivers/net/ngbe/ngbe_ethdev.c +++ b/drivers/net/ngbe/ngbe_ethdev.c @@ -850,6 +850,10 @@ ngbe_dev_start(struct rte_eth_dev *dev) goto error; } + /* Skip link setup if loopback mode is enabled. */ + if (hw->is_pf && dev->data->dev_conf.lpbk_mode) + goto skip_link_setup; + err = hw->mac.check_link(hw, &speed, &link_up, 0); if (err != 0) goto error; @@ -893,6 +897,8 @@ ngbe_dev_start(struct rte_eth_dev *dev) if (err != 0) goto error; +skip_link_setup: + if (rte_intr_allow_others(intr_handle)) { ngbe_dev_misc_interrupt_setup(dev); /* check if lsc interrupt is enabled */ diff --git a/drivers/net/ngbe/ngbe_rxtx.c b/drivers/net/ngbe/ngbe_rxtx.c index 1151173b02..22693c144a 100644 --- a/drivers/net/ngbe/ngbe_rxtx.c +++ b/drivers/net/ngbe/ngbe_rxtx.c @@ -2420,6 +2420,17 @@ ngbe_dev_rx_init(struct rte_eth_dev *dev) NGBE_FRMSZ_MAX(NGBE_FRAME_SIZE_DFT)); } + /* + * If loopback mode is configured, set LPBK bit. + */ + hlreg0 = rd32(hw, NGBE_PSRCTL); + if (hw->is_pf && dev->data->dev_conf.lpbk_mode) + hlreg0 |= NGBE_PSRCTL_LBENA; + else + hlreg0 &= ~NGBE_PSRCTL_LBENA; + + wr32(hw, NGBE_PSRCTL, hlreg0); + /* * Assume no header split and no VLAN strip support * on any Rx queue first . @@ -2538,6 +2549,19 @@ ngbe_dev_tx_init(struct rte_eth_dev *dev) } } +/* + * Set up link loopback mode Tx->Rx. + */ +static inline void +ngbe_setup_loopback_link(struct ngbe_hw *hw) +{ + PMD_INIT_FUNC_TRACE(); + + wr32m(hw, NGBE_MACRXCFG, NGBE_MACRXCFG_LB, NGBE_MACRXCFG_LB); + + msec_delay(50); +} + /* * Start Transmit and Receive Units. */ @@ -2592,6 +2616,10 @@ ngbe_dev_rxtx_start(struct rte_eth_dev *dev) rxctrl |= NGBE_PBRXCTL_ENA; hw->mac.enable_rx_dma(hw, rxctrl); + /* If loopback mode is enabled, set up the link accordingly */ + if (hw->is_pf && dev->data->dev_conf.lpbk_mode) + ngbe_setup_loopback_link(hw); + return 0; } -- 2.21.0.windows.1