modules.d/95fcoe/parse-fcoe.sh

   1 #!/bin/sh
   2 #
   3 # Supported formats:
   4 # fcoe=<networkdevice>:<dcb|nodcb>:<fabric|vn2vn>
   5 # fcoe=<macaddress>:<dcb|nodcb>:<fabric|vn2vn>
   6 #
   7 # Note currently only nodcb is supported, the dcb option is reserved for
   8 # future use.
   9 #
  10 # Note letters in the macaddress must be lowercase!
  11 #
  12 # Examples:
  13 # fcoe=eth0:nodcb:vn2vn
  14 # fcoe=4a:3f:4c:04:f8:d7:nodcb:fabric
  15
  16 if ! getargbool 0 rd.nofcoe ; then
  17         info "rd.nofcoe=0: skipping fcoe"
  18         return 0
  19 fi
  20
  21 [ -z "$fcoe" ] && fcoe=$(getarg fcoe=)
  22
  23 # If it's not set we don't continue
  24 [ -z "$fcoe" ] && return
  25
  26 [ -e /sys/bus/fcoe/ctlr_create ] || modprobe -b -a fcoe || die "FCoE requested but kernel/initrd does not support FCoE"
  27
  28 initqueue --onetime modprobe -b -q bnx2fc
  29
  30 parse_fcoe_opts() {
  31     local OLDIFS="$IFS"
  32     local IFS=:
  33     set $fcoe
  34     IFS="$OLDIFS"
  35
  36     case $# in
  37         2)
  38             fcoe_interface=$1
  39             fcoe_dcb=$2
  40             fcoe_mode="fabric"
  41             return 0
  42             ;;
  43         3)
  44             fcoe_interface=$1
  45             fcoe_dcb=$2
  46             fcoe_mode=$3
  47             return 0
  48             ;;
  49         7)
  50             fcoe_mac=$1:$2:$3:$4:$5:$6
  51             fcoe_dcb=$7
  52             fcoe_mode="fabric"
  53             return 0
  54             ;;
  55         8)
  56             fcoe_mac=$1:$2:$3:$4:$5:$6
  57             fcoe_dcb=$7
  58             fcoe_mode=$8
  59             return 0
  60             ;;
  61         *)
  62             warn "Invalid arguments for fcoe=$fcoe"
  63             return 1
  64             ;;
  65     esac
  66 }
  67
  68 parse_fcoe_opts
  69
  70 if [ "$fcoe_interface" = "edd" ]; then
  71     if [ "$fcoe_dcb" != "nodcb" -a "$fcoe_dcb" != "dcb" ] ; then
  72         warn "Invalid FCoE DCB option: $fcoe_dcb"
  73     fi
  74     /sbin/initqueue --settled --unique /sbin/fcoe-edd $fcoe_dcb
  75 else
  76     for fcoe in $(getargs fcoe=); do
  77         unset fcoe_mac
  78         unset fcoe_interface
  79         parse_fcoe_opts
  80         if [ "$fcoe_dcb" != "nodcb" -a "$fcoe_dcb" != "dcb" ] ; then
  81             warn "Invalid FCoE DCB option: $fcoe_dcb"
  82         fi
  83         . $(command -v fcoe-genrules.sh)
  84     done
  85 fi