This patch aims to enable hotplug detection in ixgbe PMD. First, it sets the “RTE_PCI_DRV_INTR_RMV” flag in drv_flags to announce the ability of hotplug processing. Then, it calls the “rte_eth_dev_event_handler_install” API to install the device event handler for ethdev. When the eal device event be detected, it calls the ethdev callback to process it. If the event is the hotplug-out event, it will trigger the “RTE_ETH_EVENT_INTR_RMV” event into the ethdev callback to allow the application's callback to process hotplug for this ethdev.
Signed-off-by: Jeff Guo <[email protected]> Acked-by: Wenzhuo Lu <[email protected]> --- v6->v5: refine commit log --- drivers/net/ixgbe/ixgbe_ethdev.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index 26b1927..37404cf 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -1678,6 +1678,9 @@ eth_ixgbevf_dev_init(struct rte_eth_dev *eth_dev) rte_intr_enable(intr_handle); ixgbevf_intr_enable(eth_dev); + /* install the dev event handler for ethdev. */ + rte_eth_dev_event_handler_install(eth_dev); + PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x mac.type=%s", eth_dev->data->port_id, pci_dev->id.vendor_id, pci_dev->id.device_id, "ixgbe_mac_82599_vf"); @@ -1718,6 +1721,9 @@ eth_ixgbevf_dev_uninit(struct rte_eth_dev *eth_dev) rte_intr_callback_unregister(intr_handle, ixgbevf_dev_interrupt_handler, eth_dev); + /* uninstall the dev event handler for ethdev. */ + rte_eth_dev_event_handler_uninstall(eth_dev); + return 0; } @@ -1801,7 +1807,7 @@ static int eth_ixgbe_pci_remove(struct rte_pci_device *pci_dev) static struct rte_pci_driver rte_ixgbe_pmd = { .id_table = pci_id_ixgbe_map, .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC | - RTE_PCI_DRV_IOVA_AS_VA, + RTE_PCI_DRV_IOVA_AS_VA | RTE_PCI_DRV_INTR_RMV, .probe = eth_ixgbe_pci_probe, .remove = eth_ixgbe_pci_remove, }; -- 2.7.4
