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selftests/eeh: Bump EEH wait time to 60s
[ Upstream commit 414f50434aa2463202a5b35e844f4125dd1a7101 ] 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 Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -53,9 +53,13 @@ eeh_one_dev() {
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# is a no-op.
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echo $dev >/sys/kernel/debug/powerpc/eeh_dev_check
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# Enforce a 30s timeout for recovery. Even the IPR, which is infamously
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# slow to reset, should recover within 30s.
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max_wait=30
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# Default to a 60s timeout when waiting for a device to recover. This
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# is an arbitrary default which can be overridden by setting the
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# EEH_MAX_WAIT environmental variable when required.
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# The current record holder for longest recovery time is:
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# "Adaptec Series 8 12G SAS/PCIe 3" at 39 seconds
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max_wait=${EEH_MAX_WAIT:=60}
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for i in `seq 0 ${max_wait}` ; do
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if pe_ok $dev ; then
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