[dpdk-dev] [PATCH] i40evf: fix mac deletion when stop dev

[Jingjing Wu]

When dev_stop is called in i40evf pmd driver, queues are switched off
to stop receiving and transmitting. But the mac address of this VF
still exists in VEB switch.
To stop the traffic from VSI level, the mac address need to be removed
too. Then the bandwidth for this SRIOV VSI can be freed.
This patch fix this issue.

Fixes: 4861cde46116 ("i40e: new poll mode driver")

Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
 drivers/net/i40e/i40e_ethdev_vf.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev_vf.c b/drivers/net/i40e/i40e_ethdev_vf.c
index 5c554f2..14d2a50 100644
--- a/drivers/net/i40e/i40e_ethdev_vf.c
+++ b/drivers/net/i40e/i40e_ethdev_vf.c
@@ -1878,7 +1878,9 @@ err_queue:
 static void
 i40evf_dev_stop(struct rte_eth_dev *dev)
 {
+	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct rte_intr_handle *intr_handle = &dev->pci_dev->intr_handle;
+	struct ether_addr mac_addr;
 
 	PMD_INIT_FUNC_TRACE();
 
@@ -1892,6 +1894,11 @@ i40evf_dev_stop(struct rte_eth_dev *dev)
 		rte_free(intr_handle->intr_vec);
 		intr_handle->intr_vec = NULL;
 	}
+	/* Set mac addr */
+	(void)rte_memcpy(mac_addr.addr_bytes, hw->mac.addr,
+				sizeof(mac_addr.addr_bytes));
+	/* Delete mac addr of this vf */
+	i40evf_del_mac_addr(dev, &mac_addr);
 }
 
 static int
-- 
2.4.0