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| author | Christophe Lombard <clombard@linux.vnet.ibm.com> | 2016-03-04 12:26:41 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-09 23:40:00 +1100 |
| commit | 0d400f77c19e8d2606f8194846bcf18ebdc9df2a (patch) | |
| tree | 307436d00d93f55e2aa27d2233c91346c14e8961 /drivers/misc/cxl/context.c | |
| parent | d601ea918b878582e60b773f2f943d8d292b2abf (diff) | |
| download | op-kernel-dev-0d400f77c19e8d2606f8194846bcf18ebdc9df2a.zip op-kernel-dev-0d400f77c19e8d2606f8194846bcf18ebdc9df2a.tar.gz | |
cxl: Adapter failure handling
Check the AFU state whenever an API is called. The hypervisor may
issue a reset of the adapter when it detects a fault. When it happens,
it launches an error recovery which will either move the AFU to a
permanent failure state, or in the disabled state.
If the AFU is found to be disabled, detach all existing contexts from
it before issuing a AFU reset to re-enable it.
Before detaching contexts, notify any kernel driver through the EEH
callbacks of the AFU pci device.
Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/context.c')
| -rw-r--r-- | drivers/misc/cxl/context.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/cxl/context.c b/drivers/misc/cxl/context.c index 180c85a..10370f2 100644 --- a/drivers/misc/cxl/context.c +++ b/drivers/misc/cxl/context.c @@ -220,7 +220,7 @@ int __detach_context(struct cxl_context *ctx) * If detach fails when hw is down, we don't care. */ WARN_ON(cxl_ops->detach_process(ctx) && - cxl_ops->link_ok(ctx->afu->adapter)); + cxl_ops->link_ok(ctx->afu->adapter, ctx->afu)); flush_work(&ctx->fault_work); /* Only needed for dedicated process */ /* release the reference to the group leader and mm handling pid */ |
