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GET /api/patches/98293/?format=api
{ "id": 98293, "url": "http://patches.dpdk.org/api/patches/98293/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20210908083758.312055-14-jiawenwu@trustnetic.com/", "project": { "id": 1, "url": "http://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20210908083758.312055-14-jiawenwu@trustnetic.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210908083758.312055-14-jiawenwu@trustnetic.com", "date": "2021-09-08T08:37:39", "name": "[13/32] net/ngbe: add loopback mode", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "12e5eb1f4cd3781ac692f2d69ada46de81059a39", "submitter": { "id": 1932, "url": "http://patches.dpdk.org/api/people/1932/?format=api", "name": "Jiawen Wu", "email": "jiawenwu@trustnetic.com" }, "delegate": { "id": 319, "url": "http://patches.dpdk.org/api/users/319/?format=api", "username": "fyigit", "first_name": "Ferruh", "last_name": "Yigit", "email": "ferruh.yigit@amd.com" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20210908083758.312055-14-jiawenwu@trustnetic.com/mbox/", "series": [ { "id": 18760, "url": "http://patches.dpdk.org/api/series/18760/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=18760", "date": "2021-09-08T08:37:26", "name": "net/ngbe: add many features", "version": 1, "mbox": "http://patches.dpdk.org/series/18760/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/98293/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/98293/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "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])\n\tby inbox.dpdk.org (Postfix) with ESMTP id BEB19A0C56;\n\tWed, 8 Sep 2021 10:37:47 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 466B9411C3;\n\tWed, 8 Sep 2021 10:36:49 +0200 (CEST)", "from smtpproxy21.qq.com (smtpbg702.qq.com [203.205.195.102])\n by mails.dpdk.org (Postfix) with ESMTP id 0375E411A9\n for <dev@dpdk.org>; Wed, 8 Sep 2021 10:36:47 +0200 (CEST)", "from wxdbg.localdomain.com (unknown [183.129.236.74])\n by esmtp6.qq.com (ESMTP) with\n id ; Wed, 08 Sep 2021 16:36:43 +0800 (CST)" ], "X-QQ-mid": "bizesmtp47t1631090204tdqap80a", "X-QQ-SSF": "01400000002000E0G000B00A0000000", "X-QQ-FEAT": "83ShfzFP0oC6bJ7C+d6Pgqvbsoj0NjLnna/InzWGePxQOp8E5JgXLZYRO1zcx\n rjljFCZmuhDhwSxRMF1Rm5vWbtQDe5KH510fnCOeJft/9IOkJWUS/xVOMgkrhgYGrsby45Z\n cGkH44x512mtZNRt++tFH9nvWeqVzbHsqQDwKGHMLt7p4gIUpfm9h+u4cveAPsymFLjeDVS\n v0KHUsJW4nTDQ7iupD72MZidQOm46yjY+am6PVI8ndv8nGg1xwto09qoTrUfBhr5SKqUp+I\n dJIqjQMN0NoSwnCW5e3gMhaer8fNSw+XnqJs4ChmWfcfmQ1wmSR7ZZAcuq0KOF5OgWCSFPC\n Cxe6ChxwTfIDY42LkLbSMk8ANs9SMp4R/5tW2Pf", "X-QQ-GoodBg": "2", "From": "Jiawen Wu <jiawenwu@trustnetic.com>", "To": "dev@dpdk.org", "Cc": "Jiawen Wu <jiawenwu@trustnetic.com>", "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 <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Support loopback operation mode.\n\nSigned-off-by: Jiawen Wu <jiawenwu@trustnetic.com>\n---\n drivers/net/ngbe/ngbe_ethdev.c | 6 ++++++\n drivers/net/ngbe/ngbe_rxtx.c | 28 ++++++++++++++++++++++++++++\n 2 files changed, 34 insertions(+)", "diff": "diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c\nindex 5566bf26a9..9caca55df3 100644\n--- a/drivers/net/ngbe/ngbe_ethdev.c\n+++ b/drivers/net/ngbe/ngbe_ethdev.c\n@@ -850,6 +850,10 @@ ngbe_dev_start(struct rte_eth_dev *dev)\n \t\tgoto error;\n \t}\n \n+\t/* Skip link setup if loopback mode is enabled. */\n+\tif (hw->is_pf && dev->data->dev_conf.lpbk_mode)\n+\t\tgoto skip_link_setup;\n+\n \terr = hw->mac.check_link(hw, &speed, &link_up, 0);\n \tif (err != 0)\n \t\tgoto error;\n@@ -893,6 +897,8 @@ ngbe_dev_start(struct rte_eth_dev *dev)\n \tif (err != 0)\n \t\tgoto error;\n \n+skip_link_setup:\n+\n \tif (rte_intr_allow_others(intr_handle)) {\n \t\tngbe_dev_misc_interrupt_setup(dev);\n \t\t/* check if lsc interrupt is enabled */\ndiff --git a/drivers/net/ngbe/ngbe_rxtx.c b/drivers/net/ngbe/ngbe_rxtx.c\nindex 1151173b02..22693c144a 100644\n--- a/drivers/net/ngbe/ngbe_rxtx.c\n+++ b/drivers/net/ngbe/ngbe_rxtx.c\n@@ -2420,6 +2420,17 @@ ngbe_dev_rx_init(struct rte_eth_dev *dev)\n \t\t\tNGBE_FRMSZ_MAX(NGBE_FRAME_SIZE_DFT));\n \t}\n \n+\t/*\n+\t * If loopback mode is configured, set LPBK bit.\n+\t */\n+\thlreg0 = rd32(hw, NGBE_PSRCTL);\n+\tif (hw->is_pf && dev->data->dev_conf.lpbk_mode)\n+\t\thlreg0 |= NGBE_PSRCTL_LBENA;\n+\telse\n+\t\thlreg0 &= ~NGBE_PSRCTL_LBENA;\n+\n+\twr32(hw, NGBE_PSRCTL, hlreg0);\n+\n \t/*\n \t * Assume no header split and no VLAN strip support\n \t * on any Rx queue first .\n@@ -2538,6 +2549,19 @@ ngbe_dev_tx_init(struct rte_eth_dev *dev)\n \t}\n }\n \n+/*\n+ * Set up link loopback mode Tx->Rx.\n+ */\n+static inline void\n+ngbe_setup_loopback_link(struct ngbe_hw *hw)\n+{\n+\tPMD_INIT_FUNC_TRACE();\n+\n+\twr32m(hw, NGBE_MACRXCFG, NGBE_MACRXCFG_LB, NGBE_MACRXCFG_LB);\n+\n+\tmsec_delay(50);\n+}\n+\n /*\n * Start Transmit and Receive Units.\n */\n@@ -2592,6 +2616,10 @@ ngbe_dev_rxtx_start(struct rte_eth_dev *dev)\n \trxctrl |= NGBE_PBRXCTL_ENA;\n \thw->mac.enable_rx_dma(hw, rxctrl);\n \n+\t/* If loopback mode is enabled, set up the link accordingly */\n+\tif (hw->is_pf && dev->data->dev_conf.lpbk_mode)\n+\t\tngbe_setup_loopback_link(hw);\n+\n \treturn 0;\n }\n \n", "prefixes": [ "13/32" ] }