ntb: ntb_test: ensure the link is up before trying to configure the mws
authorLogan Gunthorpe <logang@deltatee.com>
Tue, 25 Jul 2017 20:57:42 +0000 (14:57 -0600)
committerJon Mason <jdmason@kudzu.us>
Tue, 1 Aug 2017 19:18:59 +0000 (15:18 -0400)
commit0eb46345364d7318b11068c46e8a68d5dc10f65e
tree05bb31a2bc66ed1b746ba3aecfaa89c0106f397b
parentf3fd2afed8eee91620d05b69ab94c14793c849d7
ntb: ntb_test: ensure the link is up before trying to configure the mws

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")
tools/testing/selftests/ntb/ntb_test.sh