diff options
| author |   Paweł Jabłoński <pawel.jablonski@intel.com> | 2018-08-20 08:12:26 -0700 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2018-08-30 13:53:03 -0700 |
| commit | ae1e29f671b467f3e9e9aa2b82ee40e4300ea810 (patch) | |
| tree | f9836ea73e4988a8068221ba88a38d01ee8d6275 /drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c | |
| parent | i40evf: update ethtool stats code and use helper functions (diff) | |
| download | linux-dev-ae1e29f671b467f3e9e9aa2b82ee40e4300ea810.tar.xz linux-dev-ae1e29f671b467f3e9e9aa2b82ee40e4300ea810.zip | |
i40evf: Change a VF mac without reloading the VF driver
Add possibility to change a VF mac address from host side
without reloading the VF driver on the guest side. Without
this patch it is not possible to change the VF mac because
executing i40evf_virtchnl_completion function with
VIRTCHNL_OP_GET_VF_RESOURCES opcode resets the VF mac
address to previous value.
Signed-off-by: Paweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c index 565677de5ba3..79b7be83b5c3 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c @@ -1330,8 +1330,15 @@ void i40evf_virtchnl_completion(struct i40evf_adapter *adapter, sizeof(struct virtchnl_vsi_resource); memcpy(adapter->vf_res, msg, min(msglen, len)); i40e_vf_parse_hw_config(&adapter->hw, adapter->vf_res); - /* restore current mac address */ - ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr); + if (is_zero_ether_addr(adapter->hw.mac.addr)) { + /* restore current mac address */ + ether_addr_copy(adapter->hw.mac.addr, netdev->dev_addr); + } else { + /* refresh current mac address if changed */ + ether_addr_copy(netdev->dev_addr, adapter->hw.mac.addr); + ether_addr_copy(netdev->perm_addr, + adapter->hw.mac.addr); + } i40evf_process_config(adapter); } break; |