modules.d/95dasd_rules/parse-dasd.sh

   1 #!/bin/sh
   2
   3 create_udev_rule() {
   4     local ccw=$1
   5     local _drv _cu_type _dev_type
   6     local _rule=/etc/udev/rules.d/51-dasd-${ccw}.rules
   7
   8     if [ -e /sys/bus/ccw/devices/${ccw} ] ; then
   9         read _cu_type < /sys/bus/ccw/devices/${ccw}/cutype
  10         read _dev_type < /sys/bus/ccw/devices/${ccw}/devtype
  11     fi
  12     case "$_cu_type" in
  13     3990/*|2105/*|2107/*|1750/*|9343/*)
  14             _drv=dasd-eckd
  15             ;;
  16     6310/*)
  17             _drv=dasd-fba
  18             ;;
  19     3880/*)
  20         case "$_dev_type" in
  21             3380/*)
  22                 _drv=dasd_eckd
  23                 ;;
  24             3370/*)
  25                 _drv=dasd-fba
  26                 ;;
  27         esac
  28         ;;
  29     esac
  30     [ -z "${_drv}" ] && return 0
  31
  32     [ -e ${_rule} ] && return 0
  33
  34     cat > $_rule <<EOF
  35 ACTION=="add", SUBSYSTEM=="ccw", KERNEL=="$ccw", IMPORT{program}="collect $ccw %k ${ccw} $_drv"
  36 ACTION=="add", SUBSYSTEM=="drivers", KERNEL=="$_drv", IMPORT{program}="collect $ccw %k ${ccw} $_drv"
  37 ACTION=="add", ENV{COLLECT_$ccw}=="0", ATTR{[ccw/$ccw]online}="1"
  38 EOF
  39 }
  40
  41 for dasd_arg in $(getargs root=) $(getargs resume=); do
  42     (
  43         case $dasd_arg in
  44             /dev/disk/by-path/ccw-*)
  45                 ccw_arg=${dasd_arg##*/}
  46                 break;
  47         esac
  48         if [ -n "$ccw_arg" ] ; then
  49             IFS="-"
  50             set -- $ccw_arg
  51             create_udev_rule $2
  52         fi
  53     )
  54 done