iputils-ipg-tweaks.patch

   1 Only load modules if kernel supports modules and try a little bit
   2 harder to locate the pg directory in /proc with newer kernels.
   3
   4 Signed-off-by: Mike Frysinger <vapier@gentoo.org>
   5
   6 --- a/ipg
   7 +++ b/ipg
   8 @@ -1,21 +1,32 @@
   9  #! /bin/bash
  10
  11 -modprobe pg3
  12 +if [ -e /proc/modules ] ; then
  13 +       modprobe pg3 >& /dev/null
  14 +       modprobe pktgen >& /dev/null
  15 +fi
  16 +
  17 +for PGDEV in /proc/net/pg /proc/net/pktgen/pg0 / ; do
  18 +       [ -e ${PGDEV} ] && break
  19 +done
  20 +if [ "${PGDEV}" = "/" ] ; then
  21 +       echo "Could not locate pg in /proc/net" 1>&2
  22 +       exit 1
  23 +fi
  24
  25  function pgset() {
  26      local result
  27
  28 -    echo $1 > /proc/net/pg
  29 +    echo $1 > ${PGDEV}
  30
  31 -    result=`cat /proc/net/pg | fgrep "Result: OK:"`
  32 +    result=`cat ${PGDEV} | fgrep "Result: OK:"`
  33      if [ "$result" = "" ]; then
  34 -         cat /proc/net/pg | fgrep Result:
  35 +         cat ${PGDEV} | fgrep Result:
  36      fi
  37  }
  38
  39  function pg() {
  40 -    echo inject > /proc/net/pg
  41 -    cat /proc/net/pg
  42 +    echo inject > ${PGDEV}
  43 +    cat ${PGDEV}
  44  }
  45
  46  pgset "odev eth0"