mei: lb: add late binding version 2

The second Late Binding version allows to send payload bigger
than client MTU by splitting it to chunks and uses separate
firmware client for transfer.

The component interface is unchanged and driver doing all splitting.

Only one Late Binding version is supported by firmware.
When Late binding version 2 is supported, the new client is advertised
by firmware and existing MKHI will have version 2.
This helps driver to select the right mode of work.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://patch.msgid.link/20260405112326.1535208-3-alexander.usyskin@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 42 insertions, 9 deletions

diff --git a/include/drm/intel/intel_lb_mei_interface.h b/include/drm/intel/intel_lb_mei_interface.h
index 0850738a30fc..7f533ac7cc10 100644
--- a/include/drm/intel/intel_lb_mei_interface.h
+++ b/include/drm/intel/intel_lb_mei_interface.h
@@ -6,6 +6,7 @@
 #ifndef _INTEL_LB_MEI_INTERFACE_H_
 #define _INTEL_LB_MEI_INTERFACE_H_
 
+#include <linux/bits.h>
 #include <linux/types.h>
 
 struct device;
@@ -21,9 +22,11 @@ struct device;
 /**
  * enum intel_lb_type - enum to determine late binding payload type
  * @INTEL_LB_TYPE_FAN_CONTROL: Fan controller configuration
+ * @INTEL_LB_TYPE_OCODE: Ocode firmware
  */
 enum intel_lb_type {
 	INTEL_LB_TYPE_FAN_CONTROL = 1,
+	INTEL_LB_TYPE_OCODE = 3,
 };
 
 /**
@@ -36,16 +39,46 @@ enum intel_lb_type {
  * @INTEL_LB_STATUS_INVALID_SIGNATURE: Payload has an invalid or untrusted signature
  * @INTEL_LB_STATUS_INVALID_PAYLOAD: Payload contents are not accepted by firmware
  * @INTEL_LB_STATUS_TIMEOUT: Operation timed out before completion
+ * @INTEL_LB_STATUS_BUFFER_TOO_SMALL: Buffer provided is smaller when expected
+ * @INTEL_LB_STATUS_INTERNAL_ERROR: Internal firmware error
+ * @INTEL_LB_STATUS_INVALID_FPT_TABLE: Invalid firmware format table
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_VERIFICATION_ERROR: Error in signature verification
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_CPD: Invalid CPD
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_FW_VERSION_MISMATCH: Firmware version mismatch
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_MANIFEST: Invalid firmware manifest
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_HASH: Wrong hash in signature
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_BINDING_TYPE_MISMATCH: Wrong firmware type provided
+ * @INTEL_LB_STATUS_SIGNED_PAYLOAD_HANDLE_SVN_FAILED: SVN check failed
+ * @INTEL_LB_STATUS_DESTINATION_MBOX_FAILURE: Failed to send datat to destination
+ * @INTEL_LB_STATUS_MISSING_LOADING_PATCH: No loading patch found
+ * @INTEL_LB_STATUS_INVALID_COMMAND: Invalid command number
+ * @INTEL_LB_STATUS_INVALID_HECI_HEADER: Invalid transport header
+ * @INTEL_LB_STATUS_IP_ERROR_START: Base for internal errors
  */
 enum intel_lb_status {
-	INTEL_LB_STATUS_SUCCESS           = 0,
-	INTEL_LB_STATUS_4ID_MISMATCH      = 1,
-	INTEL_LB_STATUS_ARB_FAILURE       = 2,
-	INTEL_LB_STATUS_GENERAL_ERROR     = 3,
-	INTEL_LB_STATUS_INVALID_PARAMS    = 4,
-	INTEL_LB_STATUS_INVALID_SIGNATURE = 5,
-	INTEL_LB_STATUS_INVALID_PAYLOAD   = 6,
-	INTEL_LB_STATUS_TIMEOUT           = 7,
+	INTEL_LB_STATUS_SUCCESS                              = 0,
+	INTEL_LB_STATUS_4ID_MISMATCH                         = 1,
+	INTEL_LB_STATUS_ARB_FAILURE                          = 2,
+	INTEL_LB_STATUS_GENERAL_ERROR                        = 3,
+	INTEL_LB_STATUS_INVALID_PARAMS                       = 4,
+	INTEL_LB_STATUS_INVALID_SIGNATURE                    = 5,
+	INTEL_LB_STATUS_INVALID_PAYLOAD                      = 6,
+	INTEL_LB_STATUS_TIMEOUT                              = 7,
+	INTEL_LB_STATUS_BUFFER_TOO_SMALL                     = 8,
+	INTEL_LB_STATUS_INTERNAL_ERROR                       = 9,
+	INTEL_LB_STATUS_INVALID_FPT_TABLE                    = 10,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_VERIFICATION_ERROR    = 11,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_CPD           = 12,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_FW_VERSION_MISMATCH   = 13,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_MANIFEST      = 14,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_INVALID_HASH          = 15,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_BINDING_TYPE_MISMATCH = 16,
+	INTEL_LB_STATUS_SIGNED_PAYLOAD_HANDLE_SVN_FAILED     = 17,
+	INTEL_LB_STATUS_DESTINATION_MBOX_FAILURE             = 18,
+	INTEL_LB_STATUS_MISSING_LOADING_PATCH                = 19,
+	INTEL_LB_STATUS_INVALID_COMMAND                      = 20,
+	INTEL_LB_STATUS_INVALID_HECI_HEADER                  = 21,
+	INTEL_LB_STATUS_IP_ERROR_START                       = BIT(31),
 };
 
 /**
@@ -62,7 +95,7 @@ struct intel_lb_component_ops {
 	 * @payload_size: Payload buffer size in bytes
 	 *
 	 * Return: 0 success, negative errno value on transport failure,
-	 *         positive status returned by firmware
+	 *         positive error status returned by firmware
 	 */
 	int (*push_payload)(struct device *dev, u32 type, u32 flags,
 			    const void *payload, size_t payload_size);