[PATCH] ibmveth: Add function to enable live MAC address changes
Jiri Pirko
jiri at resnulli.us
Fri Feb 27 02:55:12 AEDT 2015
Thu, Feb 26, 2015 at 02:08:06PM CET, brking at linux.vnet.ibm.com wrote:
>On 02/25/2015 06:34 PM, Thomas Falcon wrote:
>> @@ -1327,6 +1327,24 @@ static unsigned long ibmveth_get_desired_dma(struct vio_dev *vdev)
>> return ret;
>> }
>>
>> +static int ibmveth_set_mac_addr(struct net_device *dev, void *p)
>> +{
>> + struct ibmveth_adapter *adapter = netdev_priv(dev);
>> + struct sockaddr *addr = p;
>> + u64 mac_address;
>> + int rc;
>> +
>> + if (!is_valid_ether_addr(addr->sa_data))
>> + return -EADDRNOTAVAIL;
>> +
>> + ether_addr_copy(dev->dev_addr, addr->sa_data);
>> +
>> + mac_address = ibmveth_encode_mac_addr(dev->dev_addr);
>> + rc = h_change_logical_lan_mac(adapter->vdev->unit_address, mac_address);
>> +
>> + return rc;
>
>Do you still want to be changing dev->dev_addr if h_change_logical_lan_mac
>returns a failure?
That should not be done. dev_addr should be in sync with real hw addr.
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