From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 3A92456A1 for ; Mon, 17 Jul 2017 17:26:03 +0200 (CEST) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga105.jf.intel.com with ESMTP; 17 Jul 2017 08:26:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,374,1496127600"; d="scan'208";a="879734844" Received: from dpdk6.bj.intel.com ([172.16.182.87]) by FMSMGA003.fm.intel.com with ESMTP; 17 Jul 2017 08:26:00 -0700 From: Wei Dai To: thomas@monjalon.net, wenzhuo.lu@intel.com, konstantin.ananyev@intel.com, beilei.xing@intel.com, jingjing.wu@intel.com, john.mcnamara@intel.com Cc: dev@dpdk.org, Wei Dai Date: Mon, 17 Jul 2017 23:15:01 +0800 Message-Id: <1500304503-41592-4-git-send-email-wei.dai@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1500304503-41592-1-git-send-email-wei.dai@intel.com> References: <1499961223-45281-1-git-send-email-wei.dai@intel.com> <1500304503-41592-1-git-send-email-wei.dai@intel.com> Subject: [dpdk-dev] [PATCH v8 3/5] net/i40e: add support of reset 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: Mon, 17 Jul 2017 15:26:03 -0000 Reset a NIC by calling dev_uninit() and then dev_init(). Go through the same way in NIC PCI remove without release of ethdev resource and then NIC PCI probe function without ethdev resource allocation. Signed-off-by: Wei Dai --- drivers/net/i40e/i40e_ethdev.c | 28 ++++++++++++++++++++++++++++ drivers/net/i40e/i40e_ethdev_vf.c | 19 +++++++++++++++++++ 2 files changed, 47 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 97a73e1..4ed4cf0 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -250,6 +250,7 @@ static int i40e_dev_configure(struct rte_eth_dev *dev); static int i40e_dev_start(struct rte_eth_dev *dev); static void i40e_dev_stop(struct rte_eth_dev *dev); static void i40e_dev_close(struct rte_eth_dev *dev); +static int i40e_dev_reset(struct rte_eth_dev *dev); static void i40e_dev_promiscuous_enable(struct rte_eth_dev *dev); static void i40e_dev_promiscuous_disable(struct rte_eth_dev *dev); static void i40e_dev_allmulticast_enable(struct rte_eth_dev *dev); @@ -449,6 +450,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .dev_start = i40e_dev_start, .dev_stop = i40e_dev_stop, .dev_close = i40e_dev_close, + .dev_reset = i40e_dev_reset, .promiscuous_enable = i40e_dev_promiscuous_enable, .promiscuous_disable = i40e_dev_promiscuous_disable, .allmulticast_enable = i40e_dev_allmulticast_enable, @@ -2151,6 +2153,32 @@ i40e_dev_close(struct rte_eth_dev *dev) I40E_WRITE_FLUSH(hw); } +/* + * Reest PF device only to re-initialize resources in PMD layer + */ +static int +i40e_dev_reset(struct rte_eth_dev *dev) +{ + int ret; + + /* When a DPDK PMD PF begin to reset PF port, it should notify all + * its VF to make them align with it. The detailed notification + * mechanism is PMD specific. As to i40e PF, it is rather complex. + * To avoid unexpected behavior in VF, currently reset of PF with + * SR-IOV activation is not supported. It might be supported later. + */ + if (dev->data->sriov.active) + return -ENOTSUP; + + ret = eth_i40e_dev_uninit(dev); + if (ret) + return ret; + + ret = eth_i40e_dev_init(dev); + + return ret; +} + static void i40e_dev_promiscuous_enable(struct rte_eth_dev *dev) { diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c index dc6c794..e0031d1 100644 --- a/drivers/net/i40e/i40e_ethdev_vf.c +++ b/drivers/net/i40e/i40e_ethdev_vf.c @@ -122,6 +122,7 @@ static void i40evf_vlan_offload_set(struct rte_eth_dev *dev, int mask); static int i40evf_vlan_pvid_set(struct rte_eth_dev *dev, uint16_t pvid, int on); static void i40evf_dev_close(struct rte_eth_dev *dev); +static int i40evf_dev_reset(struct rte_eth_dev *dev); static void i40evf_dev_promiscuous_enable(struct rte_eth_dev *dev); static void i40evf_dev_promiscuous_disable(struct rte_eth_dev *dev); static void i40evf_dev_allmulticast_enable(struct rte_eth_dev *dev); @@ -203,6 +204,7 @@ static const struct eth_dev_ops i40evf_eth_dev_ops = { .xstats_get_names = i40evf_dev_xstats_get_names, .xstats_reset = i40evf_dev_xstats_reset, .dev_close = i40evf_dev_close, + .dev_reset = i40evf_dev_reset, .dev_infos_get = i40evf_dev_info_get, .dev_supported_ptypes_get = i40e_dev_supported_ptypes_get, .vlan_filter_set = i40evf_vlan_filter_set, @@ -2355,6 +2357,23 @@ i40evf_dev_close(struct rte_eth_dev *dev) i40evf_disable_irq0(hw); } +/* + * Reest VF device only to re-initialize resources in PMD layer + */ +static int +i40evf_dev_reset(struct rte_eth_dev *dev) +{ + int ret; + + ret = i40evf_dev_uninit(dev); + if (ret) + return ret; + + ret = i40evf_dev_init(dev); + + return ret; +} + static int i40evf_get_rss_lut(struct i40e_vsi *vsi, uint8_t *lut, uint16_t lut_size) { -- 2.7.5