tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0-only
   3
   4 NSIM_ID=$((RANDOM % 1024))
   5 NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
   6 NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
   7 NSIM_NETDEV=
   8 num_passes=0
   9 num_errors=0
  10
  11 function cleanup_nsim {
  12     if [ -e $NSIM_DEV_SYS ]; then
  13         echo $NSIM_ID > /sys/bus/netdevsim/del_device
  14     fi
  15 }
  16
  17 function cleanup {
  18     cleanup_nsim
  19 }
  20
  21 trap cleanup EXIT
  22
  23 function check {
  24     local code=$1
  25     local str=$2
  26     local exp_str=$3
  27
  28     if [ $code -ne 0 ]; then
  29         ((num_errors++))
  30         return
  31     fi
  32
  33     if [ "$str" != "$exp_str"  ]; then
  34         echo -e "Expected: '$exp_str', got '$str'"
  35         ((num_errors++))
  36         return
  37     fi
  38
  39     ((num_passes++))
  40 }
  41
  42 function make_netdev {
  43     # Make a netdevsim
  44     old_netdevs=$(ls /sys/class/net)
  45
  46     if ! $(lsmod | grep -q netdevsim); then
  47         modprobe netdevsim
  48     fi
  49
  50     echo $NSIM_ID > /sys/bus/netdevsim/new_device
  51     # get new device name
  52     ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/
  53 }