NIC offloading fix

This commit is contained in:
Robert Castley 2025-05-25 23:28:27 +01:00
parent 7bca9117bf
commit ef8269164d
2 changed files with 267 additions and 0 deletions

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{
"name": "NIC Offloading Fix",
"slug": "nic-offloading-fix",
"categories": [
1
],
"date_created": "2025-05-25",
"type": "pve",
"updateable": false,
"privileged": false,
"interface_port": null,
"documentation": null,
"config_path": "",
"website": null,
"logo": "https://cdn.jsdelivr.net/gh/selfhst/icons/webp/proxmox.webp",
"description": "This script automates the process of disabling network interface card (NIC) offloading features specifically for Intel e1000e network interfaces on Linux systems.",
"install_methods": [
{
"type": "default",
"script": "tools/pve/nic-offloading-fix.sh",
"resources": {
"cpu": null,
"ram": null,
"hdd": null,
"os": null,
"version": null
}
}
],
"default_credentials": {
"username": null,
"password": null
},
"notes": [
{
"text": "Execute within the Proxmox shell",
"type": "info"
}
]
}

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#!/usr/bin/env bash
# Creates a systemd service to disable NIC offloading features for Intel e1000e interfaces
# Author: rcastley
# License: MIT
YW=$(echo "\033[33m")
YWB=$'\e[93m'
BL=$(echo "\033[36m")
RD=$(echo "\033[01;31m")
BGN=$(echo "\033[4;92m")
GN=$(echo "\033[1;92m")
DGN=$(echo "\033[32m")
CL=$(echo "\033[m")
TAB=" "
CM="${TAB}✔️${TAB}"
CROSS="${TAB}✖️${TAB}"
INFO="${TAB}${TAB}${CL}"
WARN="${TAB}⚠️${TAB}${CL}"
function header_info {
clear
cat <<"EOF"
_ ____________ ____ __________ ___ ____ _ __ __
/ | / / _/ ____/ / __ \/ __/ __/ /___ ____ _____/ (_)___ ____ _ / __ \(_)________ _/ /_ / /__ _____
/ |/ // // / / / / / /_/ /_/ / __ \/ __ `/ __ / / __ \/ __ `/ / / / / / ___/ __ `/ __ \/ / _ \/ ___/
/ /| // // /___ / /_/ / __/ __/ / /_/ / /_/ / /_/ / / / / / /_/ / / /_/ / (__ ) /_/ / /_/ / / __/ /
/_/ |_/___/\____/ \____/_/ /_/ /_/\____/\__,_/\__,_/_/_/ /_/\__, / /_____/_/____/\__,_/_.___/_/\___/_/
/____/
EOF
}
header_info
function msg_info() { echo -e "${INFO} ${YW}${1}...${CL}"; }
function msg_ok() { echo -e "${CM} ${GN}${1}${CL}"; }
function msg_error() { echo -e "${CROSS} ${RD}${1}${CL}"; }
function msg_warn() { echo -e "${WARN} ${YWB}${1}"; }
# Check for root privileges
if [ "$(id -u)" -ne 0 ]; then
msg_error "Error: This script must be run as root."
exit 1
fi
if ! command -v ethtool >/dev/null 2>&1; then
msg_info "Installing ethtool"
apt-get update &>/dev/null
apt-get install -y ethtool &>/dev/null || { msg_error "Failed to install ethtool. Exiting."; exit 1; }
msg_ok "ethtool installed successfully"
fi
# Get list of network interfaces using Intel e1000e driver
INTERFACES=()
COUNT=0
msg_info "Searching for Intel e1000e interfaces"
for device in /sys/class/net/*; do
interface="$(basename "$device")" # or adjust the rest of the usages below, as mostly you'll use the path anyway
# Skip loopback interface and virtual interfaces
if [[ "$interface" != "lo" ]] && [[ ! "$interface" =~ ^(tap|fwbr|veth|vmbr|bonding_masters) ]]; then
# Check if the interface uses the e1000e driver
driver=$(basename $(readlink -f /sys/class/net/$interface/device/driver 2>/dev/null) 2>/dev/null)
if [[ "$driver" == "e1000e" ]]; then
# Get MAC address for additional identification
mac=$(cat /sys/class/net/$interface/address 2>/dev/null)
INTERFACES+=("$interface" "Intel e1000e NIC ($mac)")
((COUNT++))
fi
fi
done
# Check if any Intel e1000e interfaces were found
if [ ${#INTERFACES[@]} -eq 0 ]; then
whiptail --title "Error" --msgbox "No Intel e1000e network interfaces found!" 10 60
msg_error "No Intel e1000e network interfaces found! Exiting."
exit 1
fi
msg_ok "Found ${BL}$COUNT${GN} Intel e1000e interfaces"
# Create a checklist for interface selection with all interfaces initially checked
INTERFACES_CHECKLIST=()
for ((i=0; i<${#INTERFACES[@]}; i+=2)); do
INTERFACES_CHECKLIST+=("${INTERFACES[i]}" "${INTERFACES[i+1]}" "ON")
done
# Show interface selection checklist
SELECTED_INTERFACES=$(whiptail --backtitle "Intel e1000e NIC Offloading Disabler" --title "Network Interfaces" \
--separate-output --checklist "Select Intel e1000e network interfaces\n(Space to toggle, Enter to confirm):" 15 80 6 \
"${INTERFACES_CHECKLIST[@]}" 3>&1 1>&2 2>&3)
exitstatus=$?
if [ $exitstatus != 0 ]; then
msg_info "User canceled. Exiting."
exit 0
fi
# Check if any interfaces were selected
if [ -z "$SELECTED_INTERFACES" ]; then
msg_error "No interfaces selected. Exiting."
exit 0
fi
# Convert the selected interfaces into an array
readarray -t INTERFACE_ARRAY <<< "$SELECTED_INTERFACES"
# Show the number of selected interfaces
INTERFACE_COUNT=${#INTERFACE_ARRAY[@]}
# Print selected interfaces
for iface in "${INTERFACE_ARRAY[@]}"; do
msg_ok "Selected interface: ${BL}$iface${CL}"
done
# Ask for confirmation with the list of selected interfaces
CONFIRMATION_MSG="You have selected the following interface(s):\n\n"
for iface in "${INTERFACE_ARRAY[@]}"; do
SPEED=$(cat /sys/class/net/$iface/speed 2>/dev/null)
MAC=$(cat /sys/class/net/$iface/address 2>/dev/null)
CONFIRMATION_MSG+="- $iface (MAC: $MAC, Speed: ${SPEED}Mbps)\n"
done
CONFIRMATION_MSG+="\nThis will create systemd service(s) to disable offloading features.\n\nProceed?"
if ! whiptail --backtitle "Intel e1000e NIC Offloading Disabler" --title "Confirmation" \
--yesno "$CONFIRMATION_MSG" 20 80; then
msg_info "User canceled. Exiting."
exit 0
fi
# Loop through all selected interfaces and create services for each
for SELECTED_INTERFACE in "${INTERFACE_ARRAY[@]}"; do
# Create service name for this interface
SERVICE_NAME="disable-nic-offload-$SELECTED_INTERFACE.service"
SERVICE_PATH="/etc/systemd/system/$SERVICE_NAME"
# Create the service file with e1000e specific optimizations
msg_info "Creating systemd service for interface: ${BL}$SELECTED_INTERFACE${YW}"
# Start with the common part of the service file
cat > "$SERVICE_PATH" << EOF
[Unit]
Description=Disable NIC offloading for Intel e1000e interface $SELECTED_INTERFACE
After=network.target
[Service]
Type=oneshot
# Disable all offloading features for Intel e1000e
ExecStart=/sbin/ethtool -K $SELECTED_INTERFACE gso off gro off tso off tx off rx off rxvlan off txvlan off sg off
RemainAfterExit=true
[Install]
WantedBy=multi-user.target
EOF
# Check if service file was created successfully
if [ ! -f "$SERVICE_PATH" ]; then
whiptail --title "Error" --msgbox "Failed to create service file for $SELECTED_INTERFACE!" 10 50
msg_error "Failed to create service file for $SELECTED_INTERFACE! Skipping to next interface."
continue
fi
# Configure this service
{
echo "25"; sleep 0.2
# Reload systemd to recognize the new service
systemctl daemon-reload
echo "50"; sleep 0.2
# Start the service
systemctl start "$SERVICE_NAME"
echo "75"; sleep 0.2
# Enable the service to start on boot
systemctl enable "$SERVICE_NAME"
echo "100"; sleep 0.2
} | whiptail --backtitle "Intel e1000e NIC Offloading Disabler" --gauge "Configuring service for $SELECTED_INTERFACE..." 10 80 0
# Individual service status
if systemctl is-active --quiet "$SERVICE_NAME"; then
SERVICE_STATUS="Active"
else
SERVICE_STATUS="Inactive"
fi
if systemctl is-enabled --quiet "$SERVICE_NAME"; then
BOOT_STATUS="Enabled"
else
BOOT_STATUS="Disabled"
fi
# Show individual service results
msg_ok "Service for ${BL}$SELECTED_INTERFACE${GN} created and enabled!"
msg_info "${TAB}Service: ${BL}$SERVICE_NAME${YW}"
msg_info "${TAB}Status: ${BL}$SERVICE_STATUS${YW}"
msg_info "${TAB}Start on boot: ${BL}$BOOT_STATUS${YW}"
done
# Prepare summary of all interfaces
SUMMARY_MSG="Services created successfully!\n\n"
SUMMARY_MSG+="Configured Interfaces:\n"
for iface in "${INTERFACE_ARRAY[@]}"; do
SERVICE_NAME="disable-nic-offload-$iface.service"
if systemctl is-active --quiet "$SERVICE_NAME"; then
SVC_STATUS="Active"
else
SVC_STATUS="Inactive"
fi
if systemctl is-enabled --quiet "$SERVICE_NAME"; then
BOOT_SVC_STATUS="Enabled"
else
BOOT_SVC_STATUS="Disabled"
fi
SUMMARY_MSG+="- $iface: $SVC_STATUS, Boot: $BOOT_SVC_STATUS\n"
done
# Show summary results
whiptail --backtitle "Intel e1000e NIC Offloading Disabler" --title "Success" --msgbox "$SUMMARY_MSG" 20 80
msg_ok "Intel e1000e optimization complete for ${#INTERFACE_ARRAY[@]} interface(s)!"
exit 0