[PATCH net 0/2] net: ti: icssg-prueth: fix port config and rx_mode drops

[KUMAR, RISHI]

Hi All,

On 10/14/2026 6:35 PM, netdev-bot+sinfo at kernel.org wrote:
>   - What hardware the change was tested on. For driver fixes please
>     mention the device (and if relevant firmware version) used for
>     testing, or say that the change was not tested on real hardware.
> 

Both patches were tested on real hardware.

Board:    AM64x EVM (AM6442)

ICSSG:    REL.PRU-ICSS-ETHERNET-SWITCH_02.02.16.01 firmware

Software: TI SDK 12.01.00.05.03 rt-am64xx-evm root filesystem, with
             a kernel built from net/main plus these two patches

Setup:    eth1 and eth2 bridged in br0 (switch offload)

Patch 1 (fix missing port config on second interface open):
Brought up br0 with eth1/eth2, then cycled the links (eth1 down,
eth2 down, eth1 up, eth2 up, and the reverse order). Sent 30
multicast frames to each port.

Before: after the cycle, fid_c1 of the default VLAN was 0x3 (or 0x5
for the reversed order), so only P0 and one slave port were members.
Multicast forwarded in one direction only.
After: each port is configured when it opens (fid_c1 = 0x7, P0 + P1
+ P2), and forwarding works in both directions after the cycle.

Patch 2 (re-apply rx_mode state after firmware reboot):
Brought up the offloaded switch interfaces and sent 30 multicast
frames to each port in turn.

Before: NRT_HOST_RX_PKT_COUNT did not increment for one port.
After: it increments for both ports, and forwarding works in both
directions.

HSR regression: brought up hsr0, sent 30 HSR-tagged frames in both
directions, cycled eth1/eth2 down and up, and sent again. Forwarding
works in both directions and NRT_HOST_RX_PKT_COUNT increments both
times.

Logs are in the gist links in the commit messages.

Thanks,
Rishi Kumar
ICSS India