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openSUSE:12.2
xen
block-npiv-common.sh
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File block-npiv-common.sh of Package xen
# Look for the NPIV vport with the WWPN # $1 contains the WWPN (assumes it does not contain a leading "0x") # $2 contains the FABRICNM (assumes it does not contain "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 $vhost` fname=`cat /sys/class/fc_host/$vhost/fabric_name | sed -e s/^0x//` if test $fname = $2 ; then return fi 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` fname=`cat $fchost/fabric_name | sed -e s/^0x//` if test $fname = $2 ; then return fi 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 ? if [ -e $fchost/port_state ] ; then 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 fi done # BFA 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 ? if [ -e $fchost/port_state ] ; then 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 # 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 # BFA if test -e /sys/class/fc_host/$1/device/../scsi_host/*/driver_name ; 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 }
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