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 <wei....@intel.com> --- 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 c54d325..b5df073 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -170,6 +170,7 @@ 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); @@ -266,6 +267,7 @@ 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, @@ -524,6 +526,7 @@ 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, @@ -614,6 +617,7 @@ 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, @@ -2856,6 +2860,32 @@ 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, @@ -5052,6 +5082,23 @@ 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