[PATCH net-next v6 2/6] net: stmmac: Add support for Allwinner A523 GMAC200

[Chen-Yu Tsai]

On Wed, Sep 17, 2025 at 3:00 PM Chukun Pan <amadeus at jmu.edu.cn> wrote:
>
> Hi,
>
> I tested this on Radxa Cubie A5E and there seems to be a small issue:
>
> When VLAN_8021Q is enabled (CONFIG_VLAN_8021Q=y), down the eth1 interface:
>
> ~ # ifconfig eth1 down
> [   96.695463] dwmac-sun55i 4510000.ethernet eth1: Timeout accessing MAC_VLAN_Tag_Filter
> [   96.703356] dwmac-sun55i 4510000.ethernet eth1: failed to kill vid 0081/0
>
> Is this a known issue?

There's a comment above stmmac_vlan_rx_kill_vid:

/* FIXME: This may need RXC to be running, but it may be called with BH
 * disabled, which means we can't call phylink_rx_clk_stop*().
 */

So maybe this is a known issue? Looks like the comment was left by Russell.


ChenYu