OpenWrt/LEDE Project

Attached to Project: OpenWrt/LEDE Project
Opened by Michael Pratt - 12.01.2021

Applies to all versions including master branch,
but only in ath79 target
old ar71xx target does not have the problem

for the internal built-in switch for ar934x series
port 5 of the switch is missing, and therefore physical ports
that are connected to port 5 of the internal switch instead of GMAC0
cannot be used.

Attempting to set a VLAN that includes port 5 never takes effect.

This issue is not noticed for many other ar934x boards with 5 physical ports
because routers with 4 LAN and 1 WAN port use GMAC0 for the WAN port
instead of port 5 of the internal switch.

in ar71xx the driver is
target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c

in ath79 the new driver is
target/linux/generic/files/drivers/net/phy/ar8216.c

for 2 of my AR9341 boards
EAP300 v2 and ENS202EXT
port 5 is missing from swconfig output

ath79 output:

root@OpenWrt:~# swconfig dev switch0 show
Global attributes:
        enable_vlan: 1
        ar8xxx_mib_poll_interval: 500
        ar8xxx_mib_type: 0
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        mirror_monitor_port: 0
        mirror_source_port: 0
        arl_table: address resolution table
Port 0: MAC 88:dc:96:34:64:d4
Port 1: MAC 00:e1:18:b0:01:1f

Port 0:
        mib: MIB counters
RxGoodByte  : 810502 (791.5 KiB)
TxByte      : 505477 (493.6 KiB)

        pvid: 0
        link: port:0 link:up speed:1000baseT full-duplex txflow rxflow
Port 1:
        mib: MIB counters
RxGoodByte  : 493285 (481.7 KiB)
TxByte      : 802608 (783.7 KiB)

        pvid: 1
        link: port:1 link:up speed:100baseT full-duplex auto
Port 2:
        mib: No MIB data
        pvid: 0
        link: port:2 link:down
Port 3:
        mib: No MIB data
        pvid: 0
        link: port:3 link:down
Port 4:
        mib: No MIB data
        pvid: 0
        link: port:4 link:down
VLAN 1:
        vid: 1
        ports: 0t 1

ar71xx output:

root@OpenWrt:/# swconfig dev switch0 show
Global attributes:
        enable_vlan: 1
        mirror_monitor_port: 15
Port 0:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 0
        link: port:0 link:up speed:1000baseT full-duplex txflow rxflow
Port 1:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 2
        link: port:1 link:down
Port 2:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 1
        link: port:2 link:down
Port 3:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 1
        link: port:3 link:down
Port 4:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 1
        link: port:4 link:down
Port 5:
        enable_mirror_rx: 0
        enable_mirror_tx: 0
        pvid: 1
        link: port:5 link:down
VLAN 0:
        vid: 0
        ports: 0t
VLAN 1:
        vid: 1
        ports: 0t 2 3 4 5
VLAN 2:
        vid: 2
        ports: 0t 1

asking for port 5 specifically returns ???

root@OpenWrt:/# swconfig dev switch0 port 5 show
Port 5:
        mib: ???
        pvid: ???
        link: ???