How should output of ip link and ip address look on a working BPI-R1?
Should there be vlan information in ip -d link? The -d is option for detailed information.
Context BPI-M1/M1/R1 new image:Debian 10 buster mate desktop with grub support (boot-2019.07 + kernel 5.1.1)
At https://www.kernel.org/doc/html/latest/networking/dsa/configuration.html#configuration-without-tagging-support is documented how it should work.
And I got it, bpi-r1 with Linux kernel 5.1.1, working 
Part of getting it working was sudo systemctl disable network-manager, it prevents NM from interfering with network interfaces it can’t handle.
My version of what is documented in the above ( kernel.org dsa configuration ) URL
#
# tag traffic on CPU port
ip link add link eth0 name eth0.23 type vlan id 23
ip link add link eth0 name eth0.42 type vlan id 42
# The master interface needs to be brought up before the slave ports.
ip link set eth0 up
ip link set eth0.23 up
ip link set eth0.42 up
# bring up the slave interfaces
ip link set wan up
ip link set lan1 up
ip link set lan2 up
ip link set lan3 up
ip link set lan4 up
# create bridges
ip link add name lan type bridge
ip link add name uplink type bridge
# activate VLAN filtering and set port vlan ID
ip link set dev lan type bridge vlan_filtering 1 vlan_default_pvid 23
ip link set dev uplink type bridge vlan_filtering 1 vlan_default_pvid 42
# add ports to bridges
ip link set dev eth0.23 master lan
ip link set dev lan1 master lan
ip link set dev lan2 master lan
ip link set dev lan3 master lan
ip link set dev lan4 master lan
ip link set dev eth0.42 master uplink
ip link set dev wan master uplink
# tag traffic on ports
## bridge vlan add dev lan1 vid 23 pvid untagged
## bridge vlan add dev lan2 vid 23 pvid untagged
## bridge vlan add dev lan3 vid 23 pvid untagged
## bridge vlan add dev lan4 vid 23 pvid untagged
## bridge vlan add dev wan vid 42 pvid untagged
# configure the VLANs
ip addr add 192.168.45.12/24 dev lan
## ip addr add 172.24.0.19/26 dev uplink
# bring up the bridge devices
ip link set lan up
## ip link set uplink up
dhclient uplink
# l l
So now I have
$ ip -4 a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
11: lan: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
inet 192.168.45.12/24 scope global lan
valid_lft forever preferred_lft forever
12: uplink: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
inet 172.24.0.19/26 brd 172.24.0.63 scope global dynamic uplink
valid_lft 57133sec preferred_lft 57133sec
I hope this is helpfull for others.
Go for this link: Configuration with DSA for b53125, in the Doc
And here, my journey to this document: https://forum.armbian.com/topic/3476-bpi-r1-with-new-b53-switch-driver-dsa/
amendum on the it works
Giving the uplink brigde the same MAC address as eth0 causes trouble.
If you want a presistent MAC address on brigde uplink, put a MAC address in configuration file. I use a MAC address that was once generated by systemd-networkd for that bridge.
For a yet unknown reason does eat my R1 with Linux kernel 5.1.1 dhcp answers.
Workaround is unplugging wan-port when DHCP is happening for another computer.
That unplug can be done with ip link set dev wan down.
Parking here a script that does it automated:
#!/usr/bin/python3
'''
tolerdhcp
a tcpdump wrapper and interface bouncer
(bounce is "down, wait and up again")
upon seeing a DHCP request
it disables network interface briefly
It is workaround for hardware where DHCP-replies get eaten.
Geert Stappers 2019-12-28 GPLv2
tolerdhcp
Copyright (C) 2019 Geert Stappers
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
'''
import os
import pty
import re
import signal
import subprocess
import sys
import time
currently_hardcoded_parameter = '''
if len(sys.argv) < 2:
sys.stderr.write("E: Missing interface name\n")
sys.stderr.write("I: parameter required\n")
sys.exit(1)
'''
ifname = "wan"
mymac = "02:99:04:81:a6:82"
mymac = "aa:d1:1e:25:e2:e7"
proceed = True
lsl = '' # last seen line
ec = 255 # exit code
debug_output_wanted = True
debug_output_wanted = False
def debug_output(string):
if debug_output_wanted:
print(string)
def control_c_handler(sig, frame):
'''for exit on Control-C'''
global proceed
global ec
if proceed is False:
# Most likely Control-C has already been pressed
sys.stderr.write(" I: Doing hasty closure\n")
# No attempt is done to stop the subprocess
# or any other cleanup.
sys.exit(1)
else:
# main loop shall stop the subprocess
proceed = False
ec = 130
def control_backslash_handler(sig, frame):
'''dump last seen line'''
global lsl
sys.stdout.write(lsl)
def ip_link_set(ifname, state):
cmd = "ip link set dev %s %s" % (ifname, state)
debug_output("DBG link set %s" % cmd)
subprocess.run(cmd.split())
command = "tcpdump -li eth0.42 port bootps and not ether host " + mymac
debug_output("DBG command %s" % command)
# Now start executing
master_pty, slave_pty = pty.openpty()
process = subprocess.Popen(command.split(),
stdout=slave_pty,
stderr=sys.stderr,
)
p_stdout = os.fdopen(master_pty)
time.sleep(1) # To give process some headstart plus time to fail.
# So the first process.poll() can see a aborted start.
# Such as when ping can't resolve a hostname and instantly stops.
signal.signal(signal.SIGINT, control_c_handler)
signal.signal(signal.SIGQUIT, control_backslash_handler)
while proceed and process.poll() is None:
line = p_stdout.readline()
# NOTE Waiting (forever) for subprocess output happens in above line ...
if len(line) > 0:
lsl = line # last seen line for CTRL-\ dump
debug_output("DBG going down")
ip_link_set(ifname, "down")
time.sleep(1) # Tolerant DHCP requests
ip_link_set(ifname, "up")
debug_output("DBG iface should be up")
_ = process.poll() # to update the subprocess returncode
ec = int(str(process.returncode))
sys.exit(ec)
# l l
Status:
BPI-R1 with kernel 5.X + DSA looks.I tried patching my own kernel with swconfig support and the right b53 config but I had no success. I also would be very interested in knowing how to patch/configure the new kernel.
Was in the begin used from openWRT. Mainline kernel 4.x is using Configuration with DSA for b53125
The idea of DSA is that you don’t need swconfig.
Regards Geert Stappers
Meanwhile I’ll use old configuration.
No me funciona la imagen