From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id C3FC02C6E for ; Sun, 23 Jul 2017 11:26:23 +0200 (CEST) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Jul 2017 02:26:23 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.40,400,1496127600"; d="scan'208";a="1175570275" Received: from dpdk6.bj.intel.com ([172.16.182.87]) by fmsmga001.fm.intel.com with ESMTP; 23 Jul 2017 02:26:20 -0700 From: Wei Dai To: thomas@monjalon.net, wenzhuo.lu@intel.com, konstantin.ananyev@intel.com, jingjing.wu@intel.com, beilei.xing@intel.com Cc: dev@dpdk.org, Wei Dai Date: Sun, 23 Jul 2017 17:15:10 +0800 Message-Id: <1500801313-25429-3-git-send-email-wei.dai@intel.com> X-Mailer: git-send-email 2.7.5 In-Reply-To: <1500801313-25429-1-git-send-email-wei.dai@intel.com> References: <1500304503-41592-1-git-send-email-wei.dai@intel.com> <1500801313-25429-1-git-send-email-wei.dai@intel.com> Subject: [dpdk-dev] [PATCH v9 2/5] net/ixgbe: 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: Sun, 23 Jul 2017 09:26:24 -0000 Reset a NIC by calling dev_uninit and then dev_init. Go through 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/ixgbe/ixgbe_ethdev.c | 47 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index 194058f..3f176fe 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -169,6 +169,7 @@ static void ixgbe_dev_stop(struct rte_eth_dev *dev); static int ixgbe_dev_set_link_up(struct rte_eth_dev *dev); static int ixgbe_dev_set_link_down(struct rte_eth_dev *dev); static void ixgbe_dev_close(struct rte_eth_dev *dev); +static int ixgbe_dev_reset(struct rte_eth_dev *dev); static void ixgbe_dev_promiscuous_enable(struct rte_eth_dev *dev); static void ixgbe_dev_promiscuous_disable(struct rte_eth_dev *dev); static void ixgbe_dev_allmulticast_enable(struct rte_eth_dev *dev); @@ -265,6 +266,7 @@ static int ixgbevf_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete); static void ixgbevf_dev_stop(struct rte_eth_dev *dev); static void ixgbevf_dev_close(struct rte_eth_dev *dev); +static int ixgbevf_dev_reset(struct rte_eth_dev *dev); static void ixgbevf_intr_disable(struct ixgbe_hw *hw); static void ixgbevf_intr_enable(struct ixgbe_hw *hw); static void ixgbevf_dev_stats_get(struct rte_eth_dev *dev, @@ -523,6 +525,7 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = { .dev_set_link_up = ixgbe_dev_set_link_up, .dev_set_link_down = ixgbe_dev_set_link_down, .dev_close = ixgbe_dev_close, + .dev_reset = ixgbe_dev_reset, .promiscuous_enable = ixgbe_dev_promiscuous_enable, .promiscuous_disable = ixgbe_dev_promiscuous_disable, .allmulticast_enable = ixgbe_dev_allmulticast_enable, @@ -613,6 +616,7 @@ static const struct eth_dev_ops ixgbevf_eth_dev_ops = { .xstats_reset = ixgbevf_dev_stats_reset, .xstats_get_names = ixgbevf_dev_xstats_get_names, .dev_close = ixgbevf_dev_close, + .dev_reset = ixgbevf_dev_reset, .allmulticast_enable = ixgbevf_dev_allmulticast_enable, .allmulticast_disable = ixgbevf_dev_allmulticast_disable, .dev_infos_get = ixgbevf_dev_info_get, @@ -2857,6 +2861,32 @@ ixgbe_dev_close(struct rte_eth_dev *dev) ixgbe_set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); } +/* + * Reest PF device. + */ +static int +ixgbe_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 ixgbe 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_ixgbe_dev_uninit(dev); + if (ret) + return ret; + + ret = eth_ixgbe_dev_init(dev); + + return ret; +} + static void ixgbe_read_stats_registers(struct ixgbe_hw *hw, struct ixgbe_hw_stats *hw_stats, @@ -5058,6 +5088,23 @@ ixgbevf_dev_close(struct rte_eth_dev *dev) ixgbevf_remove_mac_addr(dev, 0); } +/* + * Reset VF device + */ +static int +ixgbevf_dev_reset(struct rte_eth_dev *dev) +{ + int ret; + + ret = eth_ixgbevf_dev_uninit(dev); + if (ret) + return ret; + + ret = eth_ixgbevf_dev_init(dev); + + return ret; +} + static void ixgbevf_set_vfta_all(struct rte_eth_dev *dev, bool on) { struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); -- 2.7.5