diff options
Diffstat (limited to 'os-plugins/plugins/xen/files/xen.examples/scripts/block-npiv-common.sh')
| -rwxr-xr-x | os-plugins/plugins/xen/files/xen.examples/scripts/block-npiv-common.sh | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/os-plugins/plugins/xen/files/xen.examples/scripts/block-npiv-common.sh b/os-plugins/plugins/xen/files/xen.examples/scripts/block-npiv-common.sh new file mode 100755 index 00000000..dcf71036 --- /dev/null +++ b/os-plugins/plugins/xen/files/xen.examples/scripts/block-npiv-common.sh @@ -0,0 +1,238 @@ + + +# Look for the NPIV vport with the WWPN +# $1 contains the WWPN (assumes it does not contain a leading "0x") +find_vhost() +{ + unset vhost + + # look in upstream locations + for fchost in /sys/class/fc_vports/* ; do + if test -e $fchost/port_name ; then + wwpn=`cat $fchost/port_name | sed -e s/^0x//` + if test $wwpn = $1 ; then + # Note: makes the assumption the vport will always have an scsi_host child + vhost=`ls -d $fchost/device/host*` + vhost=`basename $vhost` + return + fi + fi + done + + # look in vendor-specific locations + + # Emulex - just looks like another scsi_host - so look at fc_hosts... + for fchost in /sys/class/fc_host/* ; do + if test -e $fchost/port_name ; then + wwpn=`cat $fchost/port_name | sed -e s/^0x//` + if test $wwpn = $1 ; then + # Note: makes the assumption the vport will always have an scsi_host child + vhost=`basename $fchost` + return + fi + fi + done +} + + +# Create a NPIV vport on the fabric w/ FABRICNM, with WWPN,WWNN +# $1 contains FABRICNM +# $2 contains the VPORT WWPN +# $3 contains the VPORT WWNN +# (assumes no name contains a leading "0x") +create_vport() +{ + # find a base adapter with npiv support that is on the right fabric + + # Look via upstream interfaces + for fchost in /sys/class/fc_host/* ; do + if test -e $fchost/vport_create ; then + # is the link up, w/ NPIV support ? + pstate=`cat $fchost/port_state` + ptype=`cat $fchost/port_type | cut -c 1-5` + fname=`cat $fchost/fabric_name | sed -e s/^0x//` + if [ $pstate = "Online" -a $ptype = "NPort" -a $fname = $1 ] ; then + vmax=`cat $fchost/max_npiv_vports` + vinuse=`cat $fchost/npiv_vports_inuse` + avail=`expr $vmax - $vinuse` + if [ $avail -gt 0 ] ; then + # create the vport + echo $2":"$3 > $fchost/vport_create + if [ $? -eq 0 ] ; then + return 0 + fi + # failed - so we'll just look for the next adapter + fi + fi + fi + done + + # Look in vendor-specific locations + + # Emulex: interfaces mirror upstream, but are under adapter scsi_host + for shost in /sys/class/scsi_host/* ; do + if [ -e $shost/vport_create ] ; then + fchost=`ls -d $shost/device/fc_host*` + # is the link up, w/ NPIV support ? + pstate=`cat $fchost/port_state` + ptype=`cat $fchost/port_type | cut -c 1-5` + fname=`cat $fchost/fabric_name | sed -e s/^0x//` + if [ $pstate = "Online" -a $ptype = "NPort" -a $fname = $1 ] ; then + vmax=`cat $shost/max_npiv_vports` + vinuse=`cat $shost/npiv_vports_inuse` + avail=`expr $vmax - $vinuse` + if [ $avail -gt 0 ] ; then + # create the vport + echo $2":"$3 > $shost/vport_create + if [ $? -eq 0 ] ; then + return 0 + fi + # failed - so we'll just look for the next adapter + fi + fi + fi + done + + return 1 +} + + +# Look for the LUN on the indicated scsi_host (which is an NPIV vport) +# $1 is the scsi_host name (normalized to simply the hostX name) +# $2 is the WWPN of the tgt port the lun is on +# Note: this implies we don't support a multipath'd lun, or we +# are explicitly identifying a "path" +# $3 is the LUN number of the scsi device +find_sdev() +{ + unset dev + hostno=${1/*host/} + for sdev in /sys/class/scsi_device/${hostno}:*:$3 ; do + if test -e $sdev/device/../fc_trans*/target${hostno}*/port_name ; then + tgtwwpn=`cat $sdev/device/../fc_trans*/target${hostno}*/port_name | sed -e s/^0x//` + if test $tgtwwpn = $2 ; then + if test -e $sdev/device/block* ; then + dev=`ls $sdev/device/block*` + dev=${dev##*/} + return + fi + fi + fi + done +} + + +# Look for the NPIV vhost based on a scsi "sdX" name +# $1 is the "sdX" name +find_vhost_from_dev() +{ + unset vhost + hostno=`readlink /sys/block/$1/device` + hostno=${hostno##*/} + hostno=${hostno%%:*} + if test -z "$hostno" ; then return; fi + vhost="host"$hostno +} + + +# We're about to terminate a vhost based on a scsi device +# Flush all nodes on that vhost as they are about to go away +# $1 is the vhost +flush_nodes_on_vhost() +{ + if test ! -x /sbin/blockdev ; then return; fi + hostno=${1/*host/} + for sdev in /sys/class/scsi_device/${hostno}:* ; do + if test -e $sdev/device/block* ; then + dev=`ls $sdev/device/block*` + dev="/dev/"$dev + if test -n "$dev"; then + blockdev --flushbufs $dev + fi + fi + done +} + + +# Terminate a NPIV vhost +# $1 is vhost +delete_vhost() +{ + # use upstream interface + for vport in /sys/class/fc_vports/* ; do + if test -e $vport/device/$1 ; then + if test -e $vport/vport_delete ; then + echo "1" > $vport/vport_delete + if test $? -ne 0 ; then exit 6; fi + sleep 4 + return + fi + fi + done + + # use vendor specific interface + + # Emulex + if test -e /sys/class/fc_host/$1/device/../scsi_host*/lpfc_drvr_version ; then + shost=`ls -1d /sys/class/fc_host/$1/device/../scsi_host* | sed s/.*scsi_host://` + vportwwpn=`cat /sys/class/fc_host/$1/port_name | sed s/^0x//` + vportwwnn=`cat /sys/class/fc_host/$1/node_name | sed s/^0x//` + echo "$vportwwpn:$vportwwnn" > /sys/class/scsi_host/$shost/vport_delete + if test $? -ne 0 ; then exit 6; fi + sleep 4 + return + fi + + # Qlogic + if test -e /sys/class/fc_host/$1/device/../scsi_host*/driver_version ; then + shost=`ls -1d /sys/class/fc_host/$1/device/../scsi_host* | sed s/.*scsi_host://` + vportwwpn=`cat /sys/class/fc_host/$1/port_name | sed s/^0x//` + vportwwnn=`cat /sys/class/fc_host/$1/node_name | sed s/^0x//` + echo "$vportwwpn:$vportwwnn" > /sys/class/scsi_host/$shost/vport_delete + if test $? -ne 0 ; then exit 6; fi + sleep 4 + return + fi + + exit 6 +} + + +vport_status() +{ + # Look via upstream interfaces + for fchost in /sys/class/fc_host/* ; do + if test -e $fchost/vport_create ; then + vport_status_display $fchost $fchost + fi + done + + # Look in vendor-specific locations + + # Emulex: interfaces mirror upstream, but are under adapter scsi_host + for shost in /sys/class/scsi_host/* ; do + if [ -e $shost/vport_create ] ; then + fchost=`ls -d $shost/device/fc_host*` + vport_status_display $fchost $shost + fi + done + + return 0 +} + + +vport_status_display() +{ + echo + echo "fc_host: " $2 + echo "port_state: " `cat $1/port_state` + echo "port_type: " `cat $1/port_type` + echo "fabric_name: " `cat $1/fabric_name` + echo "max_npiv_vports: " `cat $2/max_npiv_vports` + echo "npiv_vports_inuse: " `cat $2/npiv_vports_inuse` + echo "modeldesc: " `cat $2/modeldesc` + echo "speed: " `cat $1/speed` + + return 0 +} + |