[PATCH v2 2/3] sbi_utils: mailbox: add RPMI REQUEST_FORWARD service group definitions

[Pawandeep Oza]

From: Oza Pawandeep <pawandeep.oza at oss.qualcomm.com>

Add message protocol definitions for the RPMI REQUEST_FORWARD service
group (SERVICEGROUP_ID: 0x000D).

The following are introduced:

  - enum rpmi_request_forward_service_id: service IDs for the
    REQUEST_FORWARD service group:
      - REQFWD_ENABLE_NOTIFICATION  (0x01)
      - REQFWD_RETRIEVE_CURRENT_MESSAGE (0x02)
      - REQFWD_COMPLETE_CURRENT_MESSAGE (0x03)

  - struct rpmi_request_forward_resp: response structure for
    REQFWD_RETRIEVE_CURRENT_MESSAGE (SERVICE_ID 0x02) carrying
    status, remaining bytes, returned bytes and a flexible array
    member for the inline message data.

  - struct rpmi_request_complete_resp: response structure for
    REQFWD_COMPLETE_CURRENT_MESSAGE (SERVICE_ID 0x03) carrying
    status and the number of pending forwarded messages.

These definitions are used by the MPXY bridge driver to implement
the RPMI REQUEST_FORWARD protocol for inter-domain message passing
over the SBI MPXY extension.

Signed-off-by: Oza Pawandeep <pawandeep.oza at oss.qualcomm.com>
---
 include/sbi_utils/mailbox/rpmi_msgprot.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/sbi_utils/mailbox/rpmi_msgprot.h b/include/sbi_utils/mailbox/rpmi_msgprot.h
index 7ae4abe0..c5d564ac 100644
--- a/include/sbi_utils/mailbox/rpmi_msgprot.h
+++ b/include/sbi_utils/mailbox/rpmi_msgprot.h
@@ -1064,4 +1064,24 @@ struct rpmi_logging_log_data_resp {
 	s32 status;
 };
 
+/** RPMI REQUEST_FORWARD ServiceGroup Service IDs */
+enum rpmi_request_forward_service_id {
+	REQFWD_ENABLE_NOTIFICATION = 0x01,
+	REQFWD_RETRIEVE_CURRENT_MESSAGE = 0x02,
+	REQFWD_COMPLETE_CURRENT_MESSAGE,
+};
+
+struct rpmi_request_forward_resp {
+	u32 status;
+	u32 remaining;
+	u32 returned;
+	u8 data[];
+};
+
+/** RPMI MM ServiceGroup Communicate response struct */
+struct rpmi_request_complete_resp {
+	u32 status;
+	u32 num_of_messages;
+};
+
 #endif /* !__RPMI_MSGPROT_H__ */
-- 
2.43.0