automatic import of xenopeneuler22.03_LTS

1 files changed, 277 insertions, 0 deletions

diff --git a/block-npiv-common.sh b/block-npiv-common.sh
new file mode 100644
index 0000000..b9a4ce9
--- /dev/null
+++ b/block-npiv-common.sh
@@ -0,0 +1,277 @@
+
+
+# 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 with WWPN
+#  $1 contains the VPORT WWPN
+#  $2 may contain the VPORT WWNN
+# (assumes no name contains a leading "0x")
+create_vport()
+{
+  wwpn=$1
+  wwnn=$2
+  if [ -z "$wwnn" ]; then
+    # auto generate wwnn, follow FluidLabUpdateForEmulex.pdf
+    # Novell specific identifier
+    # byte 6 = 0 indicates WWNN, = 1 indicates WWPN
+    wwnn=${wwpn:0:6}"0"${wwpn:7}
+  fi
+  # 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`
+      if [ $pstate = "Online" -a $ptype = "NPort" ] ; 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 $wwpn":"$wwnn > $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`
+        if [ $pstate = "Online" -a $ptype = "NPort" ] ; 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 $wwpn":"$wwnn > $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`
+        if [ $pstate = "Online" -a $ptype = "NPort" ] ; then
+          # create the vport
+          echo $wwpn":"$wwnn > $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
+}
+