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| author | Oliver O'Halloran <oohall@gmail.com> | 2019-02-15 03:48:17 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-02-21 16:10:15 +0300 |
| commit | 954bd99435b8ba99e86665d6a2ec1baa1d128325 (patch) | |
| tree | 27e3156fee9ccaa8162b462c198ec20ad425aae1 /arch/powerpc/kernel/eeh_event.c | |
| parent | 6b493f6079a430fd41f66933b68d1bb1ad37ca8c (diff) | |
| download | linux-954bd99435b8ba99e86665d6a2ec1baa1d128325.tar.xz | |
powerpc/eeh: Add eeh_force_recover to debugfs
This patch adds a debugfs interface to force scheduling a recovery event.
This can be used to recover a specific PE or schedule a "special" recovery
even that checks for errors at the PHB level.
To force a recovery of a normal PE, use:
echo '<#pe>:<#phb>' > /sys/kernel/debug/powerpc/eeh_force_recover
To force a scan for broken PHBs:
echo 'hwcheck' > /sys/kernel/debug/powerpc/eeh_force_recover
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/eeh_event.c')
| -rw-r--r-- | arch/powerpc/kernel/eeh_event.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/eeh_event.c b/arch/powerpc/kernel/eeh_event.c index 19837798bb1d..539aca055d70 100644 --- a/arch/powerpc/kernel/eeh_event.c +++ b/arch/powerpc/kernel/eeh_event.c @@ -121,20 +121,11 @@ int eeh_event_init(void) * the actual event will be delivered in a normal context * (from a workqueue). */ -int eeh_send_failure_event(struct eeh_pe *pe) +int __eeh_send_failure_event(struct eeh_pe *pe) { unsigned long flags; struct eeh_event *event; - /* - * If we've manually supressed recovery events via debugfs - * then just drop it on the floor. - */ - if (eeh_debugfs_no_recover) { - pr_err("EEH: Event dropped due to no_recover setting\n"); - return 0; - } - event = kzalloc(sizeof(*event), GFP_ATOMIC); if (!event) { pr_err("EEH: out of memory, event not handled\n"); @@ -153,6 +144,20 @@ int eeh_send_failure_event(struct eeh_pe *pe) return 0; } +int eeh_send_failure_event(struct eeh_pe *pe) +{ + /* + * If we've manually supressed recovery events via debugfs + * then just drop it on the floor. + */ + if (eeh_debugfs_no_recover) { + pr_err("EEH: Event dropped due to no_recover setting\n"); + return 0; + } + + return __eeh_send_failure_event(pe); +} + /** * eeh_remove_event - Remove EEH event from the queue * @pe: Event binding to the PE |