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[SmartSwitch] Force sync DPU time during bfb install #3

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croos12 wants to merge 3 commits into from
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[SmartSwitch] Force sync DPU time during bfb install #3

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da9687d
Force syncd DPU time during bfb install
croos12 Dec 8, 2025
8b93a1a
Sync hw clock after setting new software clock
croos12 Dec 9, 2025
1f34dbc
Remove config file after running installer
croos12 Dec 12, 2025
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12 changes: 9 additions & 3 deletions platform/mellanox/sonic-bfb-installer.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -279,11 +279,15 @@ bfb_install_call() {
fi
remove_cx_pci_device "$rshim" "$dpu"

# Construct bfb-install command
local cmd="timeout ${timeout_secs}s bfb-install -b $bfb -r $rshim"
# Create config file with NPU time for DPU time synchronization
local config_file=$(mktemp "${WORK_DIR}/bf_cfg.XXXXX")
if [ -n "$appendix" ]; then
cmd="$cmd -c $appendix"
cat "$appendix" > "$config_file"
fi
echo "NPU_TIME=$(date +%s)" >> "$config_file"

# Construct bfb-install command
local cmd="timeout ${timeout_secs}s bfb-install -b $bfb -r $rshim -c $config_file"
log_info "Installing bfb image on DPU connected to $rshim using $cmd"

# Run installation with progress monitoring
Expand All @@ -307,6 +311,8 @@ bfb_install_call() {
cat "$result_file"
fi

rm -f "$config_file"

# Stop rshim application and reset DPU
stop_rshim_daemon "$rid"
log_info "$rid: Resetting DPU $dpu"
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9 changes: 9 additions & 0 deletions platform/nvidia-bluefield/installer/install.sh.j2
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Expand Up @@ -98,6 +98,15 @@ if [ -e /etc/bf.cfg ]; then
. /etc/bf.cfg
fi

if [ -n "$NPU_TIME" ]; then
log "Setting system time from NPU: $NPU_TIME"
date -s "@$NPU_TIME"
log "System time set to: $(date)"
if [ -e /dev/rtc0 ]; then
hwclock --systohc --utc
log "Hardware clock synced from system time"
fi

# Flags that can be overwritten by the bf.cfg
declare -r SKIP_FIRMWARE_UPGRADE="${SKIP_FIRMWARE_UPGRADE:-false}"
declare -r FORCE_FW_CONFIG_RESET="${FORCE_FW_CONFIG_RESET:-false}"
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