diff mbox series

[v3,3/4] net/i40e: enable hotplug detect in i40e

Message ID 1531136777-9815-4-git-send-email-jia.guo@intel.com (mailing list archive)
State Superseded, archived
Headers
Series Enable eal hotplug event detect for i40e/ixgbe |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation fail Compilation issues

Commit Message

Guo, Jia July 9, 2018, 11:46 a.m. UTC 
  This patch aim to enable hotplug detect in i40e pmd driver. Firstly it
set the flags RTE_PCI_DRV_INTR_RMV in drv_flags to announce the hotplug
ability, and then use rte_dev_event_callback_register to register
the ethdev eal device event callback. When eal detect the hotplug event,
it will call the callback to process it, if the event is hotplug remove,
it will trigger the RTE_ETH_EVENT_INTR_RMV event into ethdev callback
to let app process the hotplug for the ethdev.

This is an example for other driver, that if any driver support hotplug
feature could be use this way to enable hotplug detect.

Signed-off-by: Jeff Guo <jia.guo@intel.com>
---
v3->v2:
remove the callback from driver to ethdev.
---
 drivers/net/i40e/i40e_ethdev.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 13c5d32..d79cac1 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -688,7 +688,7 @@  static int eth_i40e_pci_remove(struct rte_pci_device *pci_dev)
 static struct rte_pci_driver rte_i40e_pmd = {
 	.id_table = pci_id_i40e_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_i40e_pci_probe,
 	.remove = eth_i40e_pci_remove,
 };
@@ -1442,6 +1442,11 @@  eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 	rte_intr_callback_register(intr_handle,
 				   i40e_dev_interrupt_handler, dev);
 
+	/* register the device event callback */
+	rte_dev_event_callback_register(dev->device->name,
+					rte_eth_dev_event_callback,
+					(void *)dev);
+
 	/* configure and enable device interrupt */
 	i40e_pf_config_irq0(hw, TRUE);
 	i40e_pf_enable_irq0(hw);