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Commit dd151d72 authored by Serge Semin's avatar Serge Semin Committed by Jon Mason
Browse files

NTB: ntb_test: Add ntb_tool port tests 



Multi-port interface is now available in ntb_tool driver. According
to the new NTB API, there might be more than two devices connected over
NTB. It means each device can have multiple freely enumerated ports.
Each port got index assigned by NTB hardware driver. This test is
performed to determine the local and peer ports as well as their indexes.

Signed-off-by: default avatarSerge Semin <fancer.lancer@gmail.com>
Signed-off-by: default avatarJon Mason <jdmason@kudzu.us>
parent 03aadf94

tools/testing/selftests/ntb/ntb_test.sh

+52 −0
Original line number Diff line number Diff line
@@ -127,6 +127,56 @@ function write_file() 
	fi

}



function check_file()

{

	split_remote $1



	if [[ "$REMOTE" != "" ]]; then

		ssh "$REMOTE" "[[ -e ${VPATH} ]]"

	else

		[[ -e ${VPATH} ]]

	fi

}



function find_pidx()

{

	PORT=$1

	PPATH=$2



	for ((i = 0; i < 64; i++)); do

		PEER_DIR="$PPATH/peer$i"



		check_file ${PEER_DIR} || break



		PEER_PORT=$(read_file "${PEER_DIR}/port")

		if [[ ${PORT} -eq $PEER_PORT ]]; then

			echo $i

			return 0

		fi

	done



	return 1

}



function port_test()

{

	LOC=$1

	REM=$2



	echo "Running port tests on: $(basename $LOC) / $(basename $REM)"



	LOCAL_PORT=$(read_file "$LOC/port")

	REMOTE_PORT=$(read_file "$REM/port")



	LOCAL_PIDX=$(find_pidx ${REMOTE_PORT} "$LOC")

	REMOTE_PIDX=$(find_pidx ${LOCAL_PORT} "$REM")



	echo "Local port ${LOCAL_PORT} with index ${REMOTE_PIDX} on remote host"

	echo "Peer port ${REMOTE_PORT} with index ${LOCAL_PIDX} on local host"



	echo "  Passed"

}



function link_test()

{

	LOC=$1
@@ -327,6 +377,8 @@ function ntb_tool_tests() 


	_modprobe ntb_tool



	port_test "$LOCAL_TOOL" "$REMOTE_TOOL"



	write_file "Y" "$LOCAL_TOOL/link_event"

	write_file "Y" "$REMOTE_TOOL/link_event"