Re: [PATCH net-next v4 5/9] net: dsa: microchip: ksz9477: Add Wake on Magic Packet support

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On 10/16/2023 7:12 AM, Oleksij Rempel wrote:
Introduce Wake on Magic Packet (WoL) functionality to the ksz9477
driver.

Major changes include:

1. Extending the `ksz9477_handle_wake_reason` function to identify Magic
    Packet wake events alongside existing wake reasons.

2. Updating the `ksz9477_get_wol` and `ksz9477_set_wol` functions to
    handle WAKE_MAGIC alongside the existing WAKE_PHY option, and to
    program the switch's MAC address register accordingly when Magic
    Packet wake-up is enabled. This change will prevent WAKE_MAGIC
    activation if the related port has a different MAC address compared
    to a MAC address already used by HSR or an already active WAKE_MAGIC
    on another port.

3. Adding a restriction in `ksz_port_set_mac_address` to prevent MAC
    address changes on ports with active Wake on Magic Packet, as the
    switch's MAC address register is utilized for this feature.

Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>

Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
--
Florian




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