From 7c49c9855a890ce32ea08f01366ecb221a027ad8 Mon Sep 17 00:00:00 2001
From: Allen Hubbe <Allen.Hubbe@dell.com>
Date: Tue, 27 Dec 2016 19:12:28 -0500
Subject: [PATCH] NTB: ntb_test: add parameter for doorbell bitmask
If the test attempts to clear doorbell bits that are invalid for the
hardware, then the test will fail. Provide a parameter to specify the
doorbell bits to clear. Set default doorbell bits that work for XEON.
Signed-off-by: Allen Hubbe <Allen.Hubbe@dell.com>
Acked-by: Logan Gunthorpe <logang@deltatee.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
---
tools/testing/selftests/ntb/ntb_test.sh | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
index 1ee8ea350f65c..1c12b5855e4f9 100755
--- a/tools/testing/selftests/ntb/ntb_test.sh
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -18,6 +18,7 @@ LIST_DEVS=FALSE
DEBUGFS=${DEBUGFS-/sys/kernel/debug}
+DB_BITMASK=0x7FFF
PERF_RUN_ORDER=32
MAX_MW_SIZE=0
RUN_DMA_TESTS=
@@ -38,6 +39,7 @@ function show_help()
echo "be highly recommended."
echo
echo "Options:"
+ echo " -b BITMASK doorbell clear bitmask for ntb_tool"
echo " -C don't cleanup ntb modules on exit"
echo " -d run dma tests"
echo " -h show this help message"
@@ -52,8 +54,9 @@ function show_help()
function parse_args()
{
OPTIND=0
- while getopts "Cdhlm:r:p:w:" opt; do
+ while getopts "b:Cdhlm:r:p:w:" opt; do
case "$opt" in
+ b) DB_BITMASK=${OPTARG} ;;
C) DONT_CLEANUP=1 ;;
d) RUN_DMA_TESTS=1 ;;
h) show_help; exit 0 ;;
@@ -158,7 +161,7 @@ function doorbell_test()
echo "Running db tests on: $(basename $LOC) / $(basename $REM)"
- write_file "c 0xFFFFFFFF" "$REM/db"
+ write_file "c $DB_BITMASK" "$REM/db"
for ((i=1; i <= 8; i++)); do
let DB=$(read_file "$REM/db") || true
--
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