c7ab0b8088
If VLAN Hash Filtering is not available we can fallback to perfect filtering instead. Let's implement this in XGMAC and GMAC cores and let the user use this filter. VLAN VID=0 always passes filter so we check if more than 2 VLANs are created and return proper error code if so because perfect filtering only supports 1 VID at a time. Signed-off-by: Jose Abreu <joabreu@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>