Hi Jan, Jan Lübbe <jlu@xxxxxxxxxxxxxx> writes: > Hi, > > On Tue, 2021-06-08 at 22:03 +0300, Vadym Kochan wrote: > > ... >> + case 0x24: return "mac-address"; > ... This is a base mac, >> + case 0x2A: return "num-macs"; > > Is suspect these properties define which range of MACs is assigned to the Yes > device. How would you use them to assign MAC addresses to multiple interfaces? > The nvmem-cells property in the network device's node can only refer to one > cell, and not to i.e the cells value + 1. > Currently in net/ethernet/marvell/prestera/prestera_main.c it is incremented and hard-coded by the driver. > I think it would be useful to have a way to express this setup for systems with > many interfaces, but am unsure of where this should be described. Maybe a "mac- > address-offset" property in the generic ethernet controller binding? > > Regards, > Jan May be something like eth_address_provider should be introduced in net/ethernet/ ? This provider can provide something like eth_provider_address_next() which will consider "mac-address-num" (or other specific fields).