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[chassis] Configure midplane network on supervisor #11725

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Merged
merged 1 commit into from
Sep 16, 2022
Merged

[chassis] Configure midplane network on supervisor #11725

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1 change: 1 addition & 0 deletions device/arista/x86_64-arista_7800_sup/chassisdb.conf
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
start_chassis_db=1
chassis_db_address=127.100.1.1
midplane_subnet=127.100.0.0/16

lag_id_start=1
lag_id_end=128
20 changes: 15 additions & 5 deletions files/build_templates/docker_image_ctl.j2
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Expand Up @@ -170,16 +170,26 @@ function postStartAction()
ip netns exec "$NET_NS" ip addr add 127.0.0.1/16 dev lo
ip netns exec "$NET_NS" ip addr del 127.0.0.1/8 dev lo

slot_id=$(python3 -c 'import sonic_platform.platform; platform_chassis = sonic_platform.platform.Platform().get_chassis(); print(platform_chassis.get_my_slot())' 2>/dev/null)
supervisor_slot_id=$(python3 -c 'import sonic_platform.platform; platform_chassis = sonic_platform.platform.Platform().get_chassis(); print(platform_chassis.get_supervisor_slot())' 2>/dev/null)

# Create eth1 in database instance
if [[ "${slot_id}" == "${supervisor_slot_id}" ]]; then
ip link add name ns-eth1"$NET_NS" type veth peer name eth1@"$NET_NS"
ip link set dev eth1@"$NET_NS" master br1
ip link set dev eth1@"$NET_NS" up
else
ip link add name ns-eth1"$NET_NS" link eth1-midplane type macvlan mode bridge
fi

# Create eth1 in database instance
ip link add name ns-eth1"$NET_NS" link eth1-midplane type macvlan mode bridge
ip link set dev ns-eth1"$NET_NS" netns "$NET_NS"
ip netns exec "$NET_NS" ip link set ns-eth1"$NET_NS" name eth1

# Configure IP address and enable eth1
lc_slot_id=$(python3 -c 'import sonic_platform.platform; platform_chassis = sonic_platform.platform.Platform().get_chassis(); print(platform_chassis.get_my_slot())' 2>/dev/null)
lc_ip_address=`echo $midplane_subnet | awk -F. '{print $1 "." $2}'`.$lc_slot_id.$(($DEV + 10))
lc_subnet_mask=${midplane_subnet#*/}
ip netns exec "$NET_NS" ip addr add $lc_ip_address/$lc_subnet_mask dev eth1
slot_ip_address=`echo $midplane_subnet | awk -F. '{print $1 "." $2}'`.$slot_id.$(($DEV + 10))
slot_subnet_mask=${midplane_subnet#*/}
ip netns exec "$NET_NS" ip addr add $slot_ip_address/$slot_subnet_mask dev eth1
ip netns exec "$NET_NS" ip link set dev eth1 up

# Allow localnet routing on the new interfaces if midplane is using a
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