From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x243.google.com (mail-lf0-x243.google.com. [2a00:1450:4010:c07::243]) by gmr-mx.google.com with ESMTPS id i11si373705wmh.2.2017.12.06.06.32.31 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 06 Dec 2017 06:32:31 -0800 (PST) Received: by mail-lf0-x243.google.com with SMTP id i2so4447127lfe.9 for ; Wed, 06 Dec 2017 06:32:31 -0800 (PST) Return-Path: From: Serge Semin Subject: [PATCH v4 13/15] NTB: ntb_test: Update ntb_tool MW tests Date: Wed, 6 Dec 2017 17:32:04 +0300 Message-Id: <20171206143206.14665-14-fancer.lancer@gmail.com> In-Reply-To: <20171206143206.14665-1-fancer.lancer@gmail.com> References: <20171205223918.28727-1-fancer.lancer@gmail.com> <20171206143206.14665-1-fancer.lancer@gmail.com> To: jdmason@kudzu.us, dave.jiang@intel.com, Allen.Hubbe@emc.com, Shyam-sundar.S-k@amd.com, Xiangliang.Yu@amd.com, gary.hook@amd.com Cc: Sergey.Semin@t-platforms.ru, linux-ntb@googlegroups.com, linux-kernel@vger.kernel.org, Serge Semin List-ID: 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 --- tools/testing/selftests/ntb/ntb_test.sh | 89 +++++++++++++++++++++++++-------- 1 file changed, 68 insertions(+), 21 deletions(-) diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh index 849191fd2308..2dea126c85eb 100755 --- a/tools/testing/selftests/ntb/ntb_test.sh +++ b/tools/testing/selftests/ntb/ntb_test.sh @@ -43,7 +43,9 @@ function show_help() echo " -h show this help message" 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 " 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/$IDX" + write_mw "$LOC/mw$IDX" - split_remote "$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 $REM + + echo " Passed" + done - echo " Passed" } function pingpong_test() @@ -451,18 +508,8 @@ function ntb_tool_tests() message_test "$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 } -- 2.12.0