Re: [net-next PATCH v18 0/8] net: dsa: Add Airoha AN8855 support

Vladimir Oltean
2025-09-17T09:28:14Z

On Mon, Sep 15, 2025 at 12:45:36PM +0200, Christian Marangi wrote:
> It's conceptually similar to mediatek switch but register and bits
> are different. And there is massive list of register for the PCS
> configuration.
> Saddly for that part we have absolutely NO documentation currently.

Please add in the next revision a more convincing argument for not
reusing the mt7530 driver control flow. Regmap fields can abstract a
lot, and the driver can select a completely different phylink_pcs for
different hardware.

I don't see in the short change log included here any mentions related
to the mt7530, but I'm not going to search the mailing lists since Nov
2024 for any previous discussions about this...

Also, let's try not to reach v20.. Please try to collect a full round of
feedback from people who commented before when submitting a new version,
pinging people if necessary. You want to make sure that their previous
feedback was addressed.

> TEST: lan2: Multicast IPv4 to joined group [ OK ]
> TEST: lan2: Multicast IPv4 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: lan2: Multicast IPv4 to unknown group, promisc [ OK ]
> TEST: lan2: Multicast IPv4 to unknown group, allmulti [ OK ]
> TEST: lan2: Multicast IPv6 to joined group [ OK ]
> TEST: lan2: Multicast IPv6 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: lan2: Multicast IPv6 to unknown group, promisc [ OK ]
> TEST: lan2: Multicast IPv6 to unknown group, allmulti [ OK ]
> TEST: lan2: 1588v2 over L2 transport, Sync [ OK ]
> TEST: lan2: 1588v2 over L2 transport, Follow-Up [ OK ]
> TEST: lan2: 1588v2 over L2 transport, Peer Delay Request [ OK ]
> TEST: lan2: 1588v2 over IPv4, Sync [FAIL]
> reception failed
> TEST: lan2: 1588v2 over IPv4, Follow-Up [FAIL]
> reception failed
> TEST: lan2: 1588v2 over IPv4, Peer Delay Request [FAIL]
> reception failed
> TEST: lan2: 1588v2 over IPv6, Sync [FAIL]
> reception failed
> TEST: lan2: 1588v2 over IPv6, Follow-Up [FAIL]
> reception failed
> TEST: lan2: 1588v2 over IPv6, Peer Delay Request [FAIL]
> reception failed

Do you know why it won't receive PTP over IP? It seems strange, given it
receives other IP multicast (even unregistered). Is it a hardware or a
software drop? What port counters increment? Does it drop PTP over IP
only on local termination, or does it also fail to forward it? What
about the packet makes the switch drop it?

> TEST: vlan_filtering=1 bridge: Multicast IPv6 to unknown group, promisc [ OK ]
> TEST: vlan_filtering=1 bridge: Multicast IPv6 to unknown group, allmulti [ OK ]
> TEST: VLAN upper: Unicast IPv4 to primary MAC address [ OK ]
> TEST: VLAN upper: Unicast IPv4 to macvlan MAC address [ OK ]
> TEST: VLAN upper: Unicast IPv4 to unknown MAC address [ OK ]
> TEST: VLAN upper: Unicast IPv4 to unknown MAC address, promisc [ OK ]
> TEST: VLAN upper: Unicast IPv4 to unknown MAC address, allmulti [ OK ]
> TEST: VLAN upper: Multicast IPv4 to joined group [ OK ]
> TEST: VLAN upper: Multicast IPv4 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN upper: Multicast IPv4 to unknown group, promisc [ OK ]
> TEST: VLAN upper: Multicast IPv4 to unknown group, allmulti [ OK ]
> TEST: VLAN upper: Multicast IPv6 to joined group [ OK ]
> TEST: VLAN upper: Multicast IPv6 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN upper: Multicast IPv6 to unknown group, promisc [ OK ]
> TEST: VLAN upper: Multicast IPv6 to unknown group, allmulti [ OK ]
> TEST: VLAN upper: 1588v2 over L2 transport, Sync [ OK ]
> TEST: VLAN upper: 1588v2 over L2 transport, Follow-Up [FAIL]
> reception failed
> TEST: VLAN upper: 1588v2 over L2 transport, Peer Delay Request [ OK ]
> TEST: VLAN upper: 1588v2 over IPv4, Sync [FAIL]
> reception failed
> ;TEST: VLAN upper: 1588v2 over IPv4, Follow-Up [FAIL]
> reception failed
> TEST: VLAN upper: 1588v2 over IPv4, Peer Delay Request [FAIL]
> reception failed
> TEST: VLAN upper: 1588v2 over IPv6, Sync [FAIL]
> reception failed
> TEST: VLAN upper: 1588v2 over IPv6, Follow-Up [FAIL]
> reception failed
> TEST: VLAN upper: 1588v2 over IPv6, Peer Delay Request [FAIL]
> reception failed

The same thing happens with VLAN too...

> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv4 to joined group [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv4 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv4 to unknown group, promisc [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv4 to unknown group, allmulti [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv6 to joined group [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv6 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv6 to unknown group, promisc [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: Multicast IPv6 to unknown group, allmulti [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over L2 transport, Sync [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over L2 transport, Follow-Up [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over L2 transport, Peer Delay Request [ OK ]
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv4, Sync [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv4, Follow-Up [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv4, Peer Delay Request [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv6, Sync [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv6, Follow-Up [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=0 bridged port: 1588v2 over IPv6, Peer Delay Request [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv4 to joined group [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv4 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv4 to unknown group, promisc [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv4 to unknown group, allmulti [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv6 to joined group [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv6 to unknown group [XFAIL]
> reception succeeded, but should have failed
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv6 to unknown group, promisc [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: Multicast IPv6 to unknown group, allmulti [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over L2 transport, Sync [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over L2 transport, Follow-Up [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over L2 transport, Peer Delay Request [ OK ]
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv4, Sync [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv4, Follow-Up [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv4, Peer Delay Request [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv6, Sync [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv6, Follow-Up [FAIL]
> reception failed
> TEST: VLAN over vlan_filtering=1 bridged port: 1588v2 over IPv6, Peer Delay Request [FAIL]
> reception failed

And over bridge ports...