From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id A5C18271 for ; Thu, 29 Jun 2017 06:41:38 +0200 (CEST) Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga105.fm.intel.com with ESMTP; 28 Jun 2017 21:41:37 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,278,1496127600"; d="scan'208";a="120144888" Received: from dpdk-py-purley.sh.intel.com ([10.239.129.223]) by fmsmga005.fm.intel.com with ESMTP; 28 Jun 2017 21:41:36 -0700 From: Jeff Guo To: helin.zhang@intel.com, jingjing.wu@intel.com Cc: dev@dpdk.org, jia.guo@intel.com Date: Thu, 29 Jun 2017 12:37:53 +0800 Message-Id: <1498711073-42917-3-git-send-email-jia.guo@intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1498711073-42917-1-git-send-email-jia.guo@intel.com> References: <1498648044-57541-2-git-send-email-jia.guo@intel.com> <1498711073-42917-1-git-send-email-jia.guo@intel.com> Subject: [dpdk-dev] [PATCH v3 2/2] net/i40e: add hot plug monitor in i40e 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: , X-List-Received-Date: Thu, 29 Jun 2017 04:41:39 -0000 From: "Guo, Jia" This patch enable the hot plug feature in i40e, by monitoring the hot plug uevent of the device. When remove event got, call the app callback function to handle the detach process. Signed-off-by: Guo, Jia --- v3->v2: refine the return issue if device remove --- drivers/net/i40e/i40e_ethdev.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 4ee1113..67ffc14 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -1283,6 +1283,7 @@ static inline void i40e_GLQF_reg_init(struct i40e_hw *hw) /* enable uio intr after callback register */ rte_intr_enable(intr_handle); + /* * Add an ethertype filter to drop all flow control frames transmitted * from VSIs. By doing so, we stop VF from sending out PAUSE or PFC @@ -5832,11 +5833,29 @@ struct i40e_vsi * { struct rte_eth_dev *dev = (struct rte_eth_dev *)param; struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct rte_uevent event; uint32_t icr0; + struct rte_pci_device *pci_dev; + struct rte_intr_handle *intr_handle; + + pci_dev = RTE_ETH_DEV_TO_PCI(dev); + intr_handle = &pci_dev->intr_handle; /* Disable interrupt */ i40e_pf_disable_irq0(hw); + /* check device uevent */ + if (rte_uevent_get(intr_handle->uevent_fd, &event) == 0) { + if (event.subsystem == RTE_UEVENT_SUBSYSTEM_UIO) { + if (event.action == RTE_UEVENT_REMOVE) { + _rte_eth_dev_callback_process(dev, + RTE_ETH_EVENT_INTR_RMV, NULL); + return; + } + } + goto done; + } + /* read out interrupt causes */ icr0 = I40E_READ_REG(hw, I40E_PFINT_ICR0); -- 1.8.3.1