| /* 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 */ |