On 10/01/2018 12:37, Xing, Beilei wrote:
-----Original Message-----
From: Awal, Mohammad Abdul
On 10/01/2018 07:56, Xing, Beilei wrote:
<...>

+static const struct ether_addr null_mac_addr;
+
+int
+rte_pmd_i40e_remove_vf_mac_addr(uint8_t port, uint16_t vf_id,
+       struct ether_addr *mac_addr)
+{
+       struct rte_eth_dev *dev;
+       struct i40e_pf_vf *vf;
+       struct i40e_vsi *vsi;
+       struct i40e_pf *pf;
+
+       if (i40e_validate_mac_addr((u8 *)mac_addr) != I40E_SUCCESS)
+               return -EINVAL;
+
+       RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+       dev = &rte_eth_devices[port];
+
+       if (!is_i40e_supported(dev))
+               return -ENOTSUP;
+
+       pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+
+       if (vf_id >= pf->vf_num || !pf->vfs)
+               return -EINVAL;
+
+       vf = &pf->vfs[vf_id];
+       vsi = vf->vsi;
+       if (!vsi) {
+               PMD_DRV_LOG(ERR, "Invalid VSI.");
+               return -EINVAL;
+       }
+
+       if (!is_same_ether_addr(mac_addr, &vf->mac_addr)) {
+               PMD_DRV_LOG(ERR, "Mac address does not match.");
+               return -EINVAL;
+       }
Not very understand why only vf->mac_addr can be moved?
It it checks if the mac address we want to delete, similar to the function
rte_pmd_i40e_set_vf_mac_addr where we set the mac address of a VF.
But in this way, seems we can't delete the mac address added by 
rte_pmd_i40e_add_vf_mac_addr.
set_vf_mac_addr should be used for setting default mac address, right?
OK, I understand what you mean.
I have fixed it now. We reset the vf->mac_addr only if the mac address is matched.
Then we delete it from the vsi->mac_list.

Thanks,
Awal.


I think any mac address in vsi->mac_list can be removed.
Yes, it is removed from the vsi->mac_list in the next line if the mac address is
matched in the previous checking.

+
+       /* reset the mac with null mac */
+       ether_addr_copy(&null_mac_addr, &vf->mac_addr);
Here we reset the mac address of a VF with null address, reverting the
operation of function rte_pmd_i40e_set_vf_mac_addr where we set the
mac address of a VF.
+
+       /* Remove the mac */
+       i40e_vsi_delete_mac(vsi, mac_addr);
+
+       return 0;
+}
+

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