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selftests/eeh: Bump EEH wait time to 60s

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Some newer cards supported by aacraid can take up to 40s to recover
after an EEH event. This causes spurious failures in the basic EEH
self-test since the current maximim timeout is only 30s.

Fix the immediate issue by bumping the timeout to a default of 60s,
and allow the wait time to be specified via an environmental variable
(EEH_MAX_WAIT).

Reported-by: Steve Best <sbest@redhat.com>
Suggested-by: Douglas Miller <dougmill@us.ibm.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200122031125.25991-1-oohall@gmail.com
This commit is contained in:
Oliver O'Halloran 2020-01-22 14:11:25 +11:00 committed by Michael Ellerman
parent f1dbc1c5c7
commit 414f50434a
1 changed files with 7 additions and 3 deletions
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10
tools/testing/selftests/powerpc/eeh/eeh-functions.sh
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@ -53,9 +53,13 @@ eeh_one_dev() {
# is a no-op.
echo $dev >/sys/kernel/debug/powerpc/eeh_dev_check
# Enforce a 30s timeout for recovery. Even the IPR, which is infamously
# slow to reset, should recover within 30s.
max_wait=30
# Default to a 60s timeout when waiting for a device to recover. This
# is an arbitrary default which can be overridden by setting the
# EEH_MAX_WAIT environmental variable when required.
# The current record holder for longest recovery time is:
# "Adaptec Series 8 12G SAS/PCIe 3" at 39 seconds
max_wait=${EEH_MAX_WAIT:=60}
for i in `seq 0 ${max_wait}` ; do
if pe_ok $dev ; then