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SubjectRe: [PATCH net-next v3 2/7] net: dsa: microchip: Set unique MAC at startup for WoL support
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On 10/13/2023 5:32 AM, Vladimir Oltean wrote:
> On Fri, Oct 13, 2023 at 02:24:00PM +0200, Oleksij Rempel wrote:
>> Set a unique global MAC address for each switch on the network at system
>> startup by syncing the switch's global MAC address with the Ethernet
>> address of the DSA master interface. This is crucial for supporting
>> Wake-on-LAN (WoL) functionality, as it requires a unique address for
>> each switch.
>>
>> Although the operation is performed only at system start and won't sync
>> if the master Ethernet address changes dynamically, it lays the
>> groundwork for WoL support by ensuring a unique MAC address for each
>> switch.
>>
>> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
>> ---
>
> Why not take the MAC address of the user port at ksz9477_set_wol() time,
> and use the existing ksz_switch_macaddr_get() API that was just added so
> that this use case could work?

Agreed we do that in a number of Ethernet MAC and PHY drivers FWIW
(net_device::dev_addr).
--
Florian

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