bmcsetup: revert previous meaning of bmcport for Dell servers (#7317)

* bmcsetup: revert previous meaning of bmcport for Dell servers, to
conform with other server types: 0=shared, 1=dedicated

* bmcsetup: remove dependency on `ipmitool delloem` and use raw cmds instead

ipmitool delloem may not work on all Dell server generations,
functionnality depends on ipmitool versions (see
ipmitool/ipmitool#18).

So removing thatdependency and using raw IPMI commands seems more robust.

Author: kcgthb

xCAT-genesis-scripts/usr/bin/bmcsetup

@@ -265,12 +265,14 @@ elif [ "$IPMIMFG" == "47488" ]; then
 elif [ "$IPMIMFG" == "674" ]; then # DELL
     BMCPORT=`grep bmcport /tmp/ipmicfg.xml |awk -F\> '{print $2}'|awk -F\< '{print $1}'`
     logger -s -t $log_label -p local4.info "BMCPORT is $BMCPORT"
-    if [ "$BMCPORT" == "0" ]; then # dedicated
-        ipmitool delloem lan set dedicated &>/dev/null
-    elif [ "$BMCPORT" == "1" -o "$BMCPORT" == "2" -o "$BMCPORT" == "3" -o "$BMCPORT" == "4" ]; then # shared
-        ipmitool delloem lan set shared &>/dev/null
-        ipmitool delloem lan set shared with lom$BMCPORT &>/dev/null
-        ipmitool delloem lan set shared with failover all loms &>/dev/null
+    if [ "$BMCPORT" == "0" ]; then # shared
+        # https://github.com/ipmitool/ipmitool/issues/18
+        # ipmitool raw 0x30 0x28 0xAA 0xBB, with:
+        #   AA: 01 = dedicated, 02...05 = shared with lom1...4
+        #   BB: 00 = no failover, 02...05 = failover on lom1...4, , 06 = failover on all loms
+        ipmitool raw 0x30 0x28 0x02 0x06
+    elif [ "$BMCPORT" == "1" ]; then # dedicated
+        ipmitool raw 0x30 0x28 0x01 0x00
     fi
 elif [ "$IPMIMFG" == "42817" -a "$XPROD" == "16975" ]; then # IBM OpenPOWER servers with OpenBMC (AC922)
     ISOPENBMC=1