Commit 27bdc44c authored by Tony Nguyen's avatar Tony Nguyen Committed by Jeff Kirsher

ixgbe: Allow setting zero MAC address for VF

Currently, there is no logic that allows a VF's MAC address to be removed
from the RAR table.

Allow the user to specify a zero MAC address in order to clear the VF's
MAC address from the RAR table.  This functionality is also utilized by
libvirt when removing VFs.
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent f87fc447
...@@ -1347,18 +1347,26 @@ void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter) ...@@ -1347,18 +1347,26 @@ void ixgbe_ping_all_vfs(struct ixgbe_adapter *adapter)
int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac) int ixgbe_ndo_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
{ {
struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_adapter *adapter = netdev_priv(netdev);
if (!is_valid_ether_addr(mac) || (vf >= adapter->num_vfs))
if (vf >= adapter->num_vfs)
return -EINVAL; return -EINVAL;
if (is_zero_ether_addr(mac)) {
adapter->vfinfo[vf].pf_set_mac = false;
dev_info(&adapter->pdev->dev, "removing MAC on VF %d\n", vf);
} else if (is_valid_ether_addr(mac)) {
adapter->vfinfo[vf].pf_set_mac = true; adapter->vfinfo[vf].pf_set_mac = true;
dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n", mac, vf); dev_info(&adapter->pdev->dev, "setting MAC %pM on VF %d\n",
dev_info(&adapter->pdev->dev, "Reload the VF driver to make this" mac, vf);
" change effective."); dev_info(&adapter->pdev->dev, "Reload the VF driver to make this change effective.");
if (test_bit(__IXGBE_DOWN, &adapter->state)) { if (test_bit(__IXGBE_DOWN, &adapter->state)) {
dev_warn(&adapter->pdev->dev, "The VF MAC address has been set," dev_warn(&adapter->pdev->dev, "The VF MAC address has been set, but the PF device is not up.\n");
" but the PF device is not up.\n"); dev_warn(&adapter->pdev->dev, "Bring the PF device up before attempting to use the VF device.\n");
dev_warn(&adapter->pdev->dev, "Bring the PF device up before"
" attempting to use the VF device.\n");
} }
} else {
return -EINVAL;
}
return ixgbe_set_vf_mac(adapter, vf, mac); return ixgbe_set_vf_mac(adapter, vf, mac);
} }
......
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