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Extend reboot script for rebooting SmartSwitch
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vvolam committed Oct 3, 2024
1 parent 008a078 commit cf9c531
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Showing 2 changed files with 244 additions and 1 deletion.
141 changes: 140 additions & 1 deletion scripts/reboot
Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,8 @@ PLATFORM_UPDATE_REBOOT_CAUSE="platform_update_reboot_cause"
REBOOT_CAUSE_FILE="/host/reboot-cause/reboot-cause.txt"
PLATFORM_REBOOT_PRE_CHECK="platform_reboot_pre_check"
REBOOT_TIME=$(date)
PLATFORM_JSON_FILE="platform.json"
PLATFORM_JSON_PATH="${DEVPATH}/${PLATFORM}/${PLATFORM_JSON_FILE}"

# Reboot immediately if we run the kdump capture kernel
VMCORE_FILE=/proc/vmcore
Expand All @@ -33,6 +35,7 @@ ASIC_TYPE=$(sonic-cfggen -y /etc/sonic/sonic_version.yml -v asic_type)
SUBTYPE=$(sonic-cfggen -d -v DEVICE_METADATA.localhost.subtype)
ASAN=$(sonic-cfggen -y /etc/sonic/sonic_version.yml -v asan)
VERBOSE=no
EXIT_SUCCESS=0
EXIT_NEXT_IMAGE_NOT_EXISTS=4
EXIT_SONIC_INSTALLER_VERIFY_REBOOT=21
EXIT_PLATFORM_FW_AU_FAILURE=22
Expand All @@ -41,6 +44,11 @@ REBOOT_SCRIPT_NAME=$(basename $0)
REBOOT_TYPE="${REBOOT_SCRIPT_NAME}"
TAG_LATEST=no
REBOOT_FLAGS=""
FORCE_REBOOT="no"
SMART_SWITCH="no"
DPU_MODULE_NAME=""
REBOOT_DPU="no"
PRE_SHUTDOWN="no"

function debug()
{
Expand Down Expand Up @@ -154,7 +162,7 @@ function reboot_pre_check()
${DEVPATH}/${PLATFORM}/${PLATFORM_REBOOT_PRE_CHECK}
[[ $? -ne 0 ]] && exit $?
fi

# Verify the next image by sonic-installer
local message=$(sonic-installer verify-next-image 2>&1)
if [ $? -ne 0 ]; then
Expand All @@ -176,6 +184,104 @@ function check_conflict_boot_in_fw_update()
fi
}

function get_reboot_status()
{
reboot_status=$(gnoi_client -target ${dpu_ip}:${port} -logtostderr -insecure -rpc RebootStatus)
if [ $? -ne 0 ] || [ -z "$reboot_status" ]; then
echo "Error: Failed to send reboot status command to DPU ${DPU_NAME}"
exit ${EXIT_ERROR}
fi
echo "$reboot_status"
}

function reboot_dpu_module()
{
local DPU_NAME=$1

debug "User requested rebooting device ${DPU_NAME} ..."

# Retrieve DPU IP from CONFIG_DB
dpu_ip=$(sonic-db-cli CONFIG_DB HGET "DHCP_SERVER_IPV4_PORT|bridge-midplane|${DPU_NAME}" "ips")
if [ $? -ne 0 ] || [ -z "$dpu_ip" ]; then
echo "Error: Failed to retrieve DPU IP address for ${DPU_NAME}"
exit ${EXIT_ERROR}
fi

# Retrieve GNMI port from CONFIG_DB
port=$(sonic-db-cli CONFIG_DB HGET "GNMI|gnmi" "port")
debug "GNMI port ${port}"
if [ $? -ne 0 ] || [ -z "$port" ]; then
echo "Error: Failed to retrieve GNMI port"
exit ${EXIT_ERROR}
fi

# Issue GNOI client command to reboot the DPU
gnoi_client -target ${dpu_ip}:${port} -logtostderr -insecure -rpc Reboot -jsonin '{"method":3}'
if [ $? -ne 0 ]; then
echo "Error: Failed to send reboot command to DPU ${DPU_NAME}"
exit ${EXIT_ERROR}
fi

# Retrieve dpu_halt_services_timeout value using jq
dpu_halt_services_timeout=$(jq -r '.dpu_halt_services_timeout' "$PLATFORM_JSON_PATH" 2>/dev/null)

# Poll on reboot status response with a timeout mechanism
poll_interval=5
waited_time=0

while true; do
reboot_status=$(get_reboot_status)
debug "GNOI RebootStatus response ${reboot_status}"
is_reboot_active=$(echo "$reboot_status" | grep "active" | awk '{print $2}')

if [ "$is_reboot_active" == "false" ]; then
break
fi

sleep "$poll_interval"
waited_time=$((waited_time + poll_interval))

if [ $waited_time -ge $dpu_halt_services_timeout ]; then
echo "Error: Timeout waiting for DPU ${DPU_NAME} to finish rebooting"
exit ${EXIT_ERROR}
fi
done

# Check if the given DPU_NAME exists in the JSON file
DPU_EXISTS=$(jq -r --arg DPU_NAME "${DPU_NAME}" '.DPUS[] | select(has($DPU_NAME)) | .[$DPU_NAME]' "$PLATFORM_JSON_PATH" 2>/dev/null)

if [ -n "$DPU_EXISTS" ]; then
# Retrieve bus_info for the given DPU_NAME
DPU_BUS_INFO=$(jq -r --arg DPU_NAME "${DPU_NAME}" '.DPUS[] | select(has($DPU_NAME)) | .[$DPU_NAME].bus_info' "$PLATFORM_JSON_PATH")

if [ -n "$DPU_BUS_INFO" ]; then
debug "DPU: ${DPU_NAME}, Bus Info: ${BUS_INFO}"
else
echo "Error: bus_info not found for DPU ${DPU_NAME}"
exit ${EXIT_ERROR}
fi
else
echo "Error: DPU ${DPU_NAME} not found in platform.json"
exit ${EXIT_ERROR}
fi

# Update STATE_DB with DPU PCIe key
sonic-db-cli state_db set "PCIE_DETACH_INFO|${DPU_NAME}" '{"dpu_id": "0", "dpu_state": "detaching", "bus_info": ${DPU_BUS_INFO}}'

# Detach the DPU module PCIe
echo 1 > /sys/bus/pci/devices/${DPU_BUS_INFO}/remove

# Reboot the DPU via platform vendor API
reboot_status=$(python3 -c "import reboot_helper; reboot_helper.reboot_modulei('${DPU_NAME}))
if [ -z "$reboot_status" ] || [ "$reboot_status" = "false" ]; then
echo "Error: Failed to reboot the platform"
exit ${EXIT_ERROR}
fi
# Rescan the PCIe
echo 1 > /sys/bus/pci/rescan
}
function parse_options()
{
while getopts "h?vf" opt; do
Expand All @@ -192,6 +298,13 @@ function parse_options()
f )
REBOOT_FLAGS+=" -f"
;;
d )
REBOOT_DPU="yes"
DPU_MODULE_NAME="$optarg"
;;
p )
PRE_SHUTDOWN="yes"
;;
esac
done
}
Expand Down Expand Up @@ -225,6 +338,27 @@ fi
debug "User requested rebooting device ..."
# Check for smart switch by parsing platform.json file
if [ -f "$PLATFORM_JSON_PATH" ]; then
NUM_DPU=$(jq -r '.DPUS | length' "$PLATFORM_JSON_PATH" 2>/dev/null)
if [ "$NUM_DPU" -gt 0 ]; then
SMART_SWITCH="yes"
fi
fi
if [[ "$REBOOT_DPU" == "yes" && "$SMART_SWITCH" == "yes" ]]; then
echo "User requested to reboot the device ${DPU_MODULE_NAME}"
reboot_dpu_module "$DPU_MODULE_NAME"
elif [ "$SMART_SWITCH" == "yes" ]; then
# Loop to iterate over DPUs and invoke reboot_dpu_module in parallel
for (( i=0; i<"$NUM_DPU"; i++ )); do
echo "Rebooting DPU module $i"
reboot_dpu_module "dpu$i" &
done
wait
fi
check_conflict_boot_in_fw_update
setup_reboot_variables
Expand Down Expand Up @@ -287,6 +421,11 @@ if [ -x ${WATCHDOG_UTIL} ]; then
${WATCHDOG_UTIL} arm
fi
if [[ "${PRE_SHUTDOWN}" == "yes" ]]; then
echo "${DPU_MODULE_NAME} pre-shutdown steps are completed"
exit ${EXIT_SUCCESS}
fi
if [ -x ${DEVPATH}/${PLATFORM}/${PLAT_REBOOT} ]; then
VERBOSE=yes debug "Rebooting with platform ${PLATFORM} specific tool ..."
${DEVPATH}/${PLATFORM}/${PLAT_REBOOT} $@
Expand Down
104 changes: 104 additions & 0 deletions scripts/reboot_helper.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,104 @@
#!/usr/bin/env python3
#
# reboot_helper.py
#
# Utility helper for reboot within SONiC

import sonic_platform
import sys
import syslog

chk_log_level = syslog.LOG_ERR

def _log_msg(lvl, pfx, msg):
if lvl <= chk_log_level:
print("{}: {}".format(pfx, msg))
syslog.syslog(lvl, msg)


def log_err(m):
_log_msg(syslog.LOG_ERR, "Err", m)


def log_info(m):
_log_msg(syslog.LOG_INFO, "Info", m)


def log_debug(m):
_log_msg(syslog.LOG_DEBUG, "Debug", m)


# Global variable for platform chassis
platform_chassis = None

def load_platform_chassis():
global platform_chassis

# Load new platform API class
try:
platform_chassis = sonic_platform.platform.Platform().get_chassis()
except Exception as e:
log_err("Failed to instantiate Chassis due to {}".format(repr(e)))
return False

if not platform_chassis:
log_err("Platform chassis is not loaded")
return False

return True

def reboot_module(module_name):
"""Reboot the specified module by invoking the platform API"""

# Load the platform chassis if not already loaded
if not platform_chassis and not load_platform_chassis():
log_err("Failed to load platform chassis")
return False

# Iterate over the modules to find the one with the specified name
try:
# Use get_all_modules to retrieve all modules on the chassis
modules = platform_chassis.get_all_modules()

# Iterate over the modules to find the one with the specified name
for module in modules:
# Check if the module name matches the provided module_name
if module and module.get_name() == module_name:
# Reboot the module
log_info(f"Rebooting module {module_name}...")
try:
module.reboot()
log_info(f"Reboot command sent for module {module_name}")
return True
except NotImplementedError:
log_error(f"Reboot not implemented for module {module_name}.")
return False
except Exception as e:
log_error(f"An error occurred while rebooting module {module_name}: {e}")
return False

# If the module with the given name is not found
log_err(f"Module {module_name} not found")
return False

except Exception as e:
log_err(f"Error occurred while rebooting module {module_name}: {repr(e)}")
return False

if __name__ == "__main__":
if len(sys.argv) < 3:
print("Usage: reboot_helper.py <command> <module_name>")
sys.exit(1)

command = sys.argv[1]
module_name = sys.argv[2]

if command == "reboot":
success = reboot_module(module_name)
if not success:
sys.exit(1)
else:
print(f"Reboot command sent for module {module_name}")
else:
print(f"Unknown command: {command}")
sys.exit(1)

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