diff options
| author | Logan Gunthorpe <logang@deltatee.com> | 2017-07-25 14:57:42 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-30 10:21:55 +0200 |
| commit | 4d4f35473d8f77f1df508f5bb87cc89513a843d9 (patch) | |
| tree | 01a341e90526cd5dc5db75bf18589c4b652836ba | |
| parent | 7592db555524b5d0dfe92a1d3069f450f31291fe (diff) | |
ntb: ntb_test: ensure the link is up before trying to configure the mws
commit 0eb46345364d7318b11068c46e8a68d5dc10f65e upstream.
After the link tests, there is a race on one side of the test for
the link coming up. It's possible, in some cases, for the test script
to write to the 'peer_trans' files before the link has come up.
To fix this, we simply use the link event file to ensure both sides
see the link as up before continuning.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Fixes: a9c59ef77458 ("ntb_test: Add a selftest script for the NTB subsystem")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rwxr-xr-x | tools/testing/selftests/ntb/ntb_test.sh | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh index 13f5198ba0ee..b3c48fc6ea4b 100755 --- a/tools/testing/selftests/ntb/ntb_test.sh +++ b/tools/testing/selftests/ntb/ntb_test.sh @@ -326,6 +326,10 @@ function ntb_tool_tests() link_test $LOCAL_TOOL $REMOTE_TOOL link_test $REMOTE_TOOL $LOCAL_TOOL + #Ensure the link is up on both sides before continuing + write_file Y $LOCAL_TOOL/link_event + write_file Y $REMOTE_TOOL/link_event + for PEER_TRANS in $(ls $LOCAL_TOOL/peer_trans*); do PT=$(basename $PEER_TRANS) write_file $MW_SIZE $LOCAL_TOOL/$PT |