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NTB: ntb_test: Add ntb_tool port tests

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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: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
This commit is contained in:
Serge Semin 2017-12-06 17:31:59 +03:00 committed by Jon Mason
parent 03aadf9499
commit dd151d7200
1 changed files with 52 additions and 0 deletions
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52
tools/testing/selftests/ntb/ntb_test.sh
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@ -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"