From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x22e.google.com (mail-lf0-x22e.google.com. [2a00:1450:4010:c07::22e]) by gmr-mx.google.com with ESMTPS id 64si199691ljz.5.2017.11.30.13.43.14 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 Nov 2017 13:43:14 -0800 (PST) Received: by mail-lf0-x22e.google.com with SMTP id a12so9542622lfe.4 for ; Thu, 30 Nov 2017 13:43:14 -0800 (PST) Return-Path: From: Serge Semin Subject: [PATCH 02/08] NTB: ntb_test: Add ntb_tool port tests Date: Fri, 1 Dec 2017 00:42:54 +0300 Message-Id: <20171130214300.21298-2-fancer.lancer@gmail.com> In-Reply-To: <20171130214300.21298-1-fancer.lancer@gmail.com> References: <20171130214300.21298-1-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, logang@deltatee.com Cc: Sergey.Semin@t-platforms.ru, linux-ntb@googlegroups.com, linux-kernel@vger.kernel.org, Serge Semin List-ID: 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 --- tools/testing/selftests/ntb/ntb_test.sh | 52 +++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh index a8647ad891eb..541ba70ad640 100755 --- a/tools/testing/selftests/ntb/ntb_test.sh +++ b/tools/testing/selftests/ntb/ntb_test.sh @@ -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" -- 2.12.0