NXP Semiconductors Layerscape LS1028A BSP - Page 100

• Brings up the eno2 and eno3 ENETC interfaces
• Assigns the bridge, switch port interfaces and eno3 to the same net namespace (swns)
#!/bin/bash
#
# Simple switch configuration
#
# Assume both ENETC and Felix drivers are already loaded
#
BRIDGE=br0
MAC_ROOT=bc:8d:bf:7c:5b
SW_NETNS=swns
EXEC_SWNS="ip netns exec $SW_NETNS"
# Create bridge namespace
ip netns add $SW_NETNS
# Create bridge device in net namespace
$EXEC_SWNS ip link add name $BRIDGE type bridge
$EXEC_SWNS ip link set $BRIDGE up
# Configure switch ports
# * set MAC address
# * bring up interface
# * move net device into the bridge net namespace
# * set bridge device as master
swps=($(ls /sys/bus/pci/devices/0000:00:00.5/net/))
nr=${#swps[@]}
for (( i=0; i<$nr; i++ ))
do
echo "adding ${swps[$i]} to brigde .."
ip link set ${swps[$i]} address $MAC_ROOT:$(echo "${swps[$i]}" | tr -dc '0-9')
ip link set ${swps[$i]} netns $SW_NETNS
$EXEC_SWNS ip link set ${swps[$i]} master $BRIDGE
$EXEC_SWNS ip link set ${swps[$i]} up
done
# bring up ENETC ports connected to switch ports
enetc2=$(ls /sys/bus/pci/devices/0000:00:00.2/net/)
ip link set $enetc2 up
# move ENETC port connected to switch CPU port in bridge ns
enetc3=$(ls /sys/bus/pci/devices/0000:00:00.6/net/)
ip link set $enetc3 netns $SW_NETNS
$EXEC_SWNS ip link set $enetc3 up
# Check configuration
$EXEC_SWNS bridge link show
The script output appears as follows:
br0: port 1(swp0) entered blocking state
br0: port 1(swp0) entered disabled state
device swp0 entered promiscuous mode
mscc_felix 0000:00:00.5 swp0: Unsupported PHY speed: 0
Vitesse VSC8514 1f8100000:10: attached PHY driver [Vitesse VSC8514] (mii_bus:phy_addr=1f8100000:10,
irq=POLL)
br0: port 1(swp0) entered blocking state
br0: port 1(swp0) entered forwarding state
Linux kernel
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
100
NXP Semiconductors