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NTB: ntb_test: Update ntb_tool MW tests

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There are devices (like IDT PCIe switches), which outbound MWs xlat address
is setup on peer side. In this case local side is supposed to allocate
a memory buffer and somehow deliver the xlat DMA address to peer so one
could set the outbound MW up. The MW test is altered so to support both
previous Intel/AMD and new IDT-like devices.

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 17:32:04 +03:00 committed by Jon Mason
parent e770112b2d
commit fa63be5428
1 changed files with 68 additions and 21 deletions
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85
tools/testing/selftests/ntb/ntb_test.sh
View file

@ -44,6 +44,8 @@ function show_help()
echo " -l list available local and remote PCI ids"
echo " -r REMOTE_HOST specify the remote's hostname to connect"
echo " to for the test (using ssh)"
echo " -m MW_SIZE memory window size for ntb_tool"
echo " (default: $MW_SIZE)"
echo " -p NUM ntb_perf run order (default: $PERF_RUN_ORDER)"
echo " -w max_mw_size maxmium memory window size"
echo
@ -316,6 +318,32 @@ function message_test()
echo " Passed"
}
function get_number()
{
KEY=$1
sed -n "s/^\(${KEY}\)[ \t]*\(0x[0-9a-fA-F]*\)\(\[p\]\)\?$/\2/p"
}
function mw_alloc()
{
IDX=$1
LOC=$2
REM=$3
write_file $MW_SIZE "$LOC/mw_trans$IDX"
INB_MW=$(read_file "$LOC/mw_trans$IDX")
MW_ALIGNED_SIZE=$(echo "$INB_MW" | get_number "Window Size")
MW_DMA_ADDR=$(echo "$INB_MW" | get_number "DMA Address")
write_file "$MW_DMA_ADDR:$(($MW_ALIGNED_SIZE))" "$REM/peer_mw_trans$IDX"
if [[ $MW_SIZE -ne $MW_ALIGNED_SIZE ]]; then
echo "MW $IDX size aligned to $MW_ALIGNED_SIZE"
fi
}
function write_mw()
{
split_remote $2
@ -328,17 +356,15 @@ function write_mw()
fi
}
function mw_test()
function mw_check()
{
IDX=$1
LOC=$2
REM=$3
echo "Running $IDX tests on: $(basename $LOC) / $(basename $REM)"
write_mw "$LOC/mw$IDX"
write_mw "$LOC/$IDX"
split_remote "$LOC/$IDX"
split_remote "$LOC/mw$IDX"
if [[ "$REMOTE" == "" ]]; then
A=$VPATH
else
@ -346,7 +372,7 @@ function mw_test()
ssh "$REMOTE" cat "$VPATH" > "$A"
fi
split_remote "$REM/peer_$IDX"
split_remote "$REM/peer_mw$IDX"
if [[ "$REMOTE" == "" ]]; then
B=$VPATH
else
@ -354,7 +380,7 @@ function mw_test()
ssh "$REMOTE" cat "$VPATH" > "$B"
fi
cmp -n $MW_SIZE "$A" "$B"
cmp -n $MW_ALIGNED_SIZE "$A" "$B"
if [[ $? != 0 ]]; then
echo "Memory window $MW did not match!" >&2
fi
@ -366,8 +392,39 @@ function mw_test()
if [[ "$B" == "/tmp/*" ]]; then
rm "$B"
fi
}
function mw_free()
{
IDX=$1
LOC=$2
REM=$3
write_file "$MW_DMA_ADDR:0" "$REM/peer_mw_trans$IDX"
write_file 0 "$LOC/mw_trans$IDX"
}
function mw_test()
{
LOC=$1
REM=$2
CNT=$(get_files_count "mw_trans" "$LOC")
for ((i = 0; i < $CNT; i++)); do
echo "Running mw$i tests on: $(subdirname $LOC) / " \
"$(subdirname $REM)"
mw_alloc $i $LOC $REM
mw_check $i $LOC $REM
mw_free $i $LOC $REM
echo " Passed"
done
}
function pingpong_test()
@ -451,18 +508,8 @@ function ntb_tool_tests()
message_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
message_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
for PEER_TRANS in $(ls "$LOCAL_TOOL"/peer_trans*); do
PT=$(basename $PEER_TRANS)
write_file $MW_SIZE "$LOCAL_TOOL/$PT"
write_file $MW_SIZE "$REMOTE_TOOL/$PT"
done
for MW in $(ls "$LOCAL_TOOL"/mw*); do
MW=$(basename $MW)
mw_test $MW "$LOCAL_TOOL" "$REMOTE_TOOL"
mw_test $MW "$REMOTE_TOOL" "$LOCAL_TOOL"
done
mw_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
mw_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
_modprobe -r ntb_tool
}