diff options
| 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 13:40:00 +0100 |
| commit | 0d400f77c19e8d2606f8194846bcf18ebdc9df2a (patch) | |
| tree | 307436d00d93f55e2aa27d2233c91346c14e8961 /drivers/misc/cxl/trace.h | |
| parent | cxl: Support the cxl kernel API from a guest (diff) | |
| download | linux-0d400f77c19e8d2606f8194846bcf18ebdc9df2a.tar.xz linux-0d400f77c19e8d2606f8194846bcf18ebdc9df2a.zip | |
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/trace.h')
0 files changed, 0 insertions, 0 deletions