forked from SLFO-pool/xen
278 lines
7.8 KiB
Bash
278 lines
7.8 KiB
Bash
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# Look for the NPIV vport with the WWPN
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# $1 contains the WWPN (assumes it does not contain a leading "0x")
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find_vhost()
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{
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unset vhost
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# look in upstream locations
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for fchost in /sys/class/fc_vports/* ; do
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if test -e $fchost/port_name ; then
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wwpn=`cat $fchost/port_name | sed -e s/^0x//`
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if test $wwpn = $1 ; then
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# Note: makes the assumption the vport will always have an scsi_host child
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vhost=`ls -d $fchost/device/host*`
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vhost=`basename $vhost`
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return
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fi
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fi
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done
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# look in vendor-specific locations
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# Emulex - just looks like another scsi_host - so look at fc_hosts...
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for fchost in /sys/class/fc_host/* ; do
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if test -e $fchost/port_name ; then
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wwpn=`cat $fchost/port_name | sed -e s/^0x//`
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if test $wwpn = $1 ; then
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# Note: makes the assumption the vport will always have an scsi_host child
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vhost=`basename $fchost`
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return
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fi
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fi
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done
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}
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# Create a NPIV vport with WWPN
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# $1 contains the VPORT WWPN
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# $2 may contain the VPORT WWNN
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# (assumes no name contains a leading "0x")
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create_vport()
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{
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wwpn=$1
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wwnn=$2
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if [ -z "$wwnn" ]; then
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# auto generate wwnn, follow FluidLabUpdateForEmulex.pdf
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# Novell specific identifier
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# byte 6 = 0 indicates WWNN, = 1 indicates WWPN
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wwnn=${wwpn:0:6}"0"${wwpn:7}
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fi
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# find a base adapter with npiv support that is on the right fabric
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# Look via upstream interfaces
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for fchost in /sys/class/fc_host/* ; do
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if test -e $fchost/vport_create ; then
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# is the link up, w/ NPIV support ?
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pstate=`cat $fchost/port_state`
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ptype=`cat $fchost/port_type | cut -c 1-5`
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if [ $pstate = "Online" -a $ptype = "NPort" ] ; then
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vmax=`cat $fchost/max_npiv_vports`
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vinuse=`cat $fchost/npiv_vports_inuse`
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avail=`expr $vmax - $vinuse`
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if [ $avail -gt 0 ] ; then
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# create the vport
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echo $wwpn":"$wwnn > $fchost/vport_create
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if [ $? -eq 0 ] ; then
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return 0
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fi
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# failed - so we'll just look for the next adapter
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fi
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fi
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fi
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done
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# Look in vendor-specific locations
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# Emulex: interfaces mirror upstream, but are under adapter scsi_host
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for shost in /sys/class/scsi_host/* ; do
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if [ -e $shost/vport_create ] ; then
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fchost=`ls -d $shost/device/fc_host*`
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# is the link up, w/ NPIV support ?
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if [ -e $fchost/port_state ] ; then
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pstate=`cat $fchost/port_state`
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ptype=`cat $fchost/port_type | cut -c 1-5`
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if [ $pstate = "Online" -a $ptype = "NPort" ] ; then
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vmax=`cat $shost/max_npiv_vports`
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vinuse=`cat $shost/npiv_vports_inuse`
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avail=`expr $vmax - $vinuse`
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if [ $avail -gt 0 ] ; then
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# create the vport
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echo $wwpn":"$wwnn > $shost/vport_create
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if [ $? -eq 0 ] ; then
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return 0
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fi
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# failed - so we'll just look for the next adapter
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fi
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fi
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fi
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fi
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done
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# BFA are under adapter scsi_host
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for shost in /sys/class/scsi_host/* ; do
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if [ -e $shost/vport_create ] ; then
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fchost=`ls -d $shost/device/fc_host/*`
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# is the link up, w/ NPIV support ?
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if [ -e $fchost/port_state ] ; then
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pstate=`cat $fchost/port_state`
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ptype=`cat $fchost/port_type | cut -c 1-5`
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if [ $pstate = "Online" -a $ptype = "NPort" ] ; then
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# create the vport
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echo $wwpn":"$wwnn > $shost/vport_create
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if [ $? -eq 0 ] ; then
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return 0
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fi
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# failed - so we'll just look for the next adapter
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fi
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fi
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fi
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done
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return 1
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}
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# Look for the LUN on the indicated scsi_host (which is an NPIV vport)
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# $1 is the scsi_host name (normalized to simply the hostX name)
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# $2 is the WWPN of the tgt port the lun is on
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# Note: this implies we don't support a multipath'd lun, or we
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# are explicitly identifying a "path"
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# $3 is the LUN number of the scsi device
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find_sdev()
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{
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unset dev
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hostno=${1/*host/}
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for sdev in /sys/class/scsi_device/${hostno}:*:$3 ; do
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if test -e $sdev/device/../fc_trans*/target${hostno}*/port_name ; then
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tgtwwpn=`cat $sdev/device/../fc_trans*/target${hostno}*/port_name | sed -e s/^0x//`
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if test $tgtwwpn = $2 ; then
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if test -e $sdev/device/block* ; then
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dev=`ls $sdev/device/block*`
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dev=${dev##*/}
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return
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fi
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fi
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fi
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done
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}
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# Look for the NPIV vhost based on a scsi "sdX" name
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# $1 is the "sdX" name
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find_vhost_from_dev()
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{
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unset vhost
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hostno=`readlink /sys/block/$1/device`
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hostno=${hostno##*/}
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hostno=${hostno%%:*}
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if test -z "$hostno" ; then return; fi
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vhost="host"$hostno
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}
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# We're about to terminate a vhost based on a scsi device
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# Flush all nodes on that vhost as they are about to go away
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# $1 is the vhost
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flush_nodes_on_vhost()
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{
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if test ! -x /sbin/blockdev ; then return; fi
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hostno=${1/*host/}
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for sdev in /sys/class/scsi_device/${hostno}:* ; do
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if test -e $sdev/device/block* ; then
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dev=`ls $sdev/device/block*`
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dev="/dev/"$dev
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if test -n "$dev"; then
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blockdev --flushbufs $dev
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fi
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fi
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done
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}
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# Terminate a NPIV vhost
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# $1 is vhost
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delete_vhost()
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{
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# use upstream interface
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for vport in /sys/class/fc_vports/* ; do
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if test -e $vport/device/$1 ; then
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if test -e $vport/vport_delete ; then
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echo "1" > $vport/vport_delete
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if test $? -ne 0 ; then exit 6; fi
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sleep 4
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return
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fi
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fi
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done
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# use vendor specific interface
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# Emulex
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if test -e /sys/class/fc_host/$1/device/../scsi_host*/lpfc_drvr_version ; then
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shost=`ls -1d /sys/class/fc_host/$1/device/../scsi_host* | sed s/.*scsi_host://`
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vportwwpn=`cat /sys/class/fc_host/$1/port_name | sed s/^0x//`
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vportwwnn=`cat /sys/class/fc_host/$1/node_name | sed s/^0x//`
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echo "$vportwwpn:$vportwwnn" > /sys/class/scsi_host/$shost/vport_delete
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if test $? -ne 0 ; then exit 6; fi
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sleep 4
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return
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fi
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# Qlogic
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if test -e /sys/class/fc_host/$1/device/../scsi_host*/driver_version ; then
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shost=`ls -1d /sys/class/fc_host/$1/device/../scsi_host* | sed s/.*scsi_host://`
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vportwwpn=`cat /sys/class/fc_host/$1/port_name | sed s/^0x//`
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vportwwnn=`cat /sys/class/fc_host/$1/node_name | sed s/^0x//`
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echo "$vportwwpn:$vportwwnn" > /sys/class/scsi_host/$shost/vport_delete
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if test $? -ne 0 ; then exit 6; fi
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sleep 4
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return
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fi
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# BFA
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if test -e /sys/class/fc_host/$1/device/../scsi_host/*/driver_name ; then
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shost=`ls -1d /sys/class/fc_host/$1/device/../scsi_host/* | sed s#.*scsi_host/##`
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vportwwpn=`cat /sys/class/fc_host/$1/port_name | sed s/^0x//`
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vportwwnn=`cat /sys/class/fc_host/$1/node_name | sed s/^0x//`
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echo "$vportwwpn:$vportwwnn" > /sys/class/scsi_host/$shost/vport_delete
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if test $? -ne 0 ; then exit 6; fi
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sleep 4
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return
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fi
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exit 6
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}
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vport_status()
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{
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# Look via upstream interfaces
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for fchost in /sys/class/fc_host/* ; do
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if test -e $fchost/vport_create ; then
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vport_status_display $fchost $fchost
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fi
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done
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# Look in vendor-specific locations
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# Emulex: interfaces mirror upstream, but are under adapter scsi_host
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for shost in /sys/class/scsi_host/* ; do
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if [ -e $shost/vport_create ] ; then
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fchost=`ls -d $shost/device/fc_host*`
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vport_status_display $fchost $shost
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fi
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done
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return 0
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}
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vport_status_display()
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{
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echo
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echo "fc_host: " $2
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echo "port_state: " `cat $1/port_state`
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echo "port_type: " `cat $1/port_type`
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echo "fabric_name: " `cat $1/fabric_name`
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echo "max_npiv_vports: " `cat $2/max_npiv_vports`
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echo "npiv_vports_inuse: " `cat $2/npiv_vports_inuse`
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echo "modeldesc: " `cat $2/modeldesc`
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echo "speed: " `cat $1/speed`
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return 0
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}
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