core/pci: Introduce a new pci_slot_op named completed_sm_run()

At times we need to perform some cleanup activities when the Opal PCI
state machine that perform creset/freset/hreset (driven by
pci_slot_ops->run_sm which) of a slot completes. One example can be to
mark CAPP attached to a PHB, as deactivated when creset/freset of a
CAPI card slot is completed.

However the calls to pci_slot_ops->run_sm() is scattered through out
the code and patching each call site to check for the return value and
perform custom cleanup tacks is difficult.

Hence this patch introduces a new pci_slot_ops named
completed_sm_run() which should be called when pci_slot_ops->run_sm()
determines that the reset state machine is complete. This provides a
more centralized way to handle slot related cleanup activities.

Reviewed-by: Frederic Barrat <fbarrat@linux.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/pci-slot.h b/include/pci-slot.h
index cd757535..708374b6 100644
--- a/include/pci-slot.h
+++ b/include/pci-slot.h
@@ -110,6 +110,7 @@ struct pci_slot_ops {
 	int64_t (*freset)(struct pci_slot *slot);
 	int64_t (*hreset)(struct pci_slot *slot);
 	int64_t (*run_sm)(struct pci_slot *slot);
+	int64_t (*completed_sm_run)(struct pci_slot *slot, uint64_t err);
 
 	/* Auxillary functions */
 	void (*add_properties)(struct pci_slot *slot, struct dt_node *np);