Need help with network script

Hi guys,

I"m writing this script to resolve my NIC card hanging upon shutdown.
The script is executed , but it has no effect (even after reboot).
I put this script in /sbin and add its entry in rc.local, if that matter.

The purpose is to have my NIC to disable TSO, and GSO after it's up.

#!/bin/bash
 
PATH=/sbin:/usr/sbin:/bin:/usr/bin
 
# This script is turning off GSO, & TSO offloading on NICs.
 


 
case "$1" in
 
  eth0)
     echo "Turning off offloading on eth0..."
     if [[ "$1" = "eth0" ]] &&  [["$2" = "up" ]]; then
     /sbin/ethtool -K eth0 tso off
     /sbin/ethtool -K eth0 gso off
     echo "Successfully turned off eth0 offloading."
     echo $?
     fi
     ;;
 
  eth1)
     echo "Turning off offloading on eth1..."
     if [[ "$1" = "eth1" ]] && [[ "$2" = "up" ]]; then
     /sbin/ethtool -K eth1 tso off
     /sbin/ethtool -K eth1 gso off
     echo "Successfully turned off eth1 offloading."
     echo $?
     fi
     ;;
 
  bond0)
      echo "Turning off offloading on bond0..."
      if [[ "$1" = "bond0" ]] && [[ "$2" = "up" ]]; then
      /sbin/ethtool -K bond0 tso off
      /sbin/ethtool -K bond0 gso off
      echo "Successfully turned off bond0 offloading."
      echo $?
      fi
      ;;
 
  *) exit $NA

     ;;
 
esac
exit 0

I try to get it work in one script.

I added the entry in rc.local: /sbin/ifup-local
According to what ryecoaaron said,if I put this script in /etc/network/if-up.d/, would it make a difference?

What arguments am I missing?

This script below I wrote is working but for some reason, my interface isn't online after it's resume from hibernation (S4).
Therefore, I have to shutdown the system, and turn it back on.
Reboot, and cold boot are fine though.

That's why I want to implement the if and case statement in the above script.

#!/bin/bash
    echo "Turning off offloading on eth0..."
    /sbin/ethtool -K eth0 tso off;
    /sbin/ethtool -K eth0 gso off;
    echo $?;
    echo "Turning off offloading on eth1...";
    /sbin/ethtool -K eth1 tso off;
    /sbin/ethtool -K eth1 gso off;
    echo $?;
    echo "Turning off offloading on bond0...";
    /sbin/ethtool -K bond0 tso off;
    /sbin/ethtool -K bond0 gso off;
    echo $?;
    exit 0

Quote from ryecoaaron

Scripts in ifup.d/ifdown.d are automatically executed when the adapter is brought up/down. In /sbin, something else needs to call it. I think this is more appropriate than using init levels or rc.local.

Don't you always want to disable tso and gso when bringing the NICs up? Not sure why you need the if/case.

I do want to tso/gso disable after startup, but the second script somehow interfere with my NICs when it wake up from hibernation.
So I think it got to do with my NIC is not online after the system startup.
This is what happened after hibernation with the second script:
1. System turn on
2. NICs are not online.
3. OMV displays a blank page with cursor on screen.

I haven't try it without bond.

Quote

The first script had case $1 which is the first positional argument so the line should be "script.sh eth0 up" in rc.local

What's the difference between this entry and my entry in rc.local: /sbin/ifup-local.sh ?

There is another work around is to disable tso/gso from the network interface itself in /etc/network/interfaces.
I want to stick with the script because it's more suitable.

# The primary network interface      
    allow-hotplug eth0
    auto eth0
    iface eth0 inet static
        post-up /sbin/ethtool -K eth0 tso off
        post-up /sbin/ethtool -K eth0 gso off

My interfaces lost connection when I add this parameters in the Interfaces' options in OMV web:

post-up ethtool -K bond0 tso off gso off

I know I can put in the /etc/network/interfaces all.