| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * mctp-usb.h - MCTP USB transport binding: common definitions, |
| * based on DMTF0283 specification: |
| * https://www.dmtf.org/sites/default/files/standards/documents/DSP0283_1.0.1.pdf |
| * |
| * These are protocol-level definitions, that may be shared between host |
| * and gadget drivers. |
| * |
| * Copyright (C) 2024-2025 Code Construct Pty Ltd |
| */ |
| |
| #ifndef __LINUX_USB_MCTP_USB_H |
| #define __LINUX_USB_MCTP_USB_H |
| |
| #include <linux/types.h> |
| |
| struct mctp_usb_hdr { |
| __be16 id; |
| u8 rsvd; |
| u8 len; |
| } __packed; |
| |
| #define MCTP_USB_XFER_SIZE 512 |
| #define MCTP_USB_BTU 68 |
| #define MCTP_USB_MTU_MIN MCTP_USB_BTU |
| #define MCTP_USB_MTU_MAX (U8_MAX - sizeof(struct mctp_usb_hdr)) |
| #define MCTP_USB_DMTF_ID 0x1ab4 |
| |
| #endif /* __LINUX_USB_MCTP_USB_H */ |
