path_id: handle fiber channel

Patch from: Hannes Reinecke <hare@suse.de>

Signed-off-by: Kay Sievers <kay.sievers@suse.de>

diff --git a/extras/path_id b/extras/path_id
index af1837a77d5b98275ffa223f059fb9982c8b78bc..b58e1eda6aecdb46eceb042651faacde387bf90b 100755 (executable)
--- a/extras/path_id
+++ b/extras/path_id
@@ -248,6 +248,46 @@ handle_block_scsi () {
        RESULT=0
 }
 
        RESULT=0
 }
 

+handle_block_fc () {
+: handle_block_fc $*
+       local DEV=$1
+       local cil controller_port controller_dev
+       # SCSI-FC device
+       fc_tgt_hcil="${DEV##*/}"
+       fc_tgt_lun="${fc_tgt_hcil##*:}"
+       fc_tgt_path="${DEV%/*}"
+       fc_tgt_num="${fc_tgt_path##*/}"
+       fc_tgt_dev="${fc_tgt_path}/fc_transport:${fc_tgt_num}"
+       if [ -e "$fc_tgt_dev/port_name" ]; then
+           read wwpn < $fc_tgt_dev/port_name
+       fi
+       if [ -z "$wwpn" ] ; then
+           : no WWPN
+           RESULT=1
+           return
+       fi
+       # Linux currently knows about 32bit luns
+       tmp_lun3=$(printf "%04x" $(($fc_tgt_lun & 0xFFFF)))
+       tmp_lun2=$(printf "%04x" $(( ($fc_tgt_lun >> 16) & 0xFFFF)))
+       tmp_lun1="0000"
+       tmp_lun0="0000"
+
+       if (($fc_tgt_lun == 0)) ; then
+           lun="0x0000000000000000"
+       else
+           lun="0x${tmp_lun3}${tmp_lun2}${tmp_lun1}${tmp_lun0}"
+       fi
+       controller_dev="${fc_tgt_path%/host[0-9]*}"
+       adapter="${controller_dev##*/}"
+       bus="pci"
+       d="$bus-$adapter"
+       if [ -z "$controller_port" ] ; then
+               controller_port=0
+       fi
+       d="${d}-fc-${wwpn}:${lun}"
+       RESULT=0
+}
+

 handle_block_usb_storage () {
 : handle_block_usb_storage $*
        local DEV=$1
 handle_block_usb_storage () {
 : handle_block_usb_storage $*
        local DEV=$1


@@ -353,6 +393,9 @@ handle_block () {
            RESULT=0
        fi
        ;;
            RESULT=0
        fi
        ;;

+       */rport-[0-9]*:[0-9]*-[0-9]*/*)
+       handle_block_fc "$D"
+       ;;

        */host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
        # check for ieee1394 sbp2 
        if test -f $D/ieee1394_id ; then
        */host[0-9]*/[0-9]*:[0-9]*:[0-9]*:[0-9]*)
        # check for ieee1394 sbp2 
        if test -f $D/ieee1394_id ; then