[mirror_ubuntu-jammy-kernel.git] / include / net / mctp.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Management Component Transport Protocol (MCTP)
 *
 * Copyright (c) 2021 Code Construct
 * Copyright (c) 2021 Google
 */

#ifndef __NET_MCTP_H
#define __NET_MCTP_H

#include <linux/bits.h>

/* MCTP packet definitions */
struct mctp_hdr {
	u8	ver;
	u8	dest;
	u8	src;
	u8	flags_seq_tag;
};

#define MCTP_VER_MIN	1
#define MCTP_VER_MAX	1

/* Definitions for flags_seq_tag field */
#define MCTP_HDR_FLAG_SOM	BIT(7)
#define MCTP_HDR_FLAG_EOM	BIT(6)
#define MCTP_HDR_FLAG_TO	BIT(3)
#define MCTP_HDR_FLAGS		GENMASK(5, 3)
#define MCTP_HDR_SEQ_SHIFT	4
#define MCTP_HDR_SEQ_MASK	GENMASK(1, 0)
#define MCTP_HDR_TAG_SHIFT	0
#define MCTP_HDR_TAG_MASK	GENMASK(2, 0)

#endif /* __NET_MCTP_H */
Commit	Line	Data
2c8e2e9a JK	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	/*
	3	* Management Component Transport Protocol (MCTP)
	4	*
	5	* Copyright (c) 2021 Code Construct
	6	* Copyright (c) 2021 Google
	7	*/
	8
	9	#ifndef __NET_MCTP_H
	10	#define __NET_MCTP_H
	11
	12	#include <linux/bits.h>
	13
	14	/* MCTP packet definitions */
	15	struct mctp_hdr {
	16	u8 ver;
	17	u8 dest;
	18	u8 src;
	19	u8 flags_seq_tag;
	20	};
	21
	22	#define MCTP_VER_MIN 1
	23	#define MCTP_VER_MAX 1
	24
	25	/* Definitions for flags_seq_tag field */
	26	#define MCTP_HDR_FLAG_SOM BIT(7)
	27	#define MCTP_HDR_FLAG_EOM BIT(6)
	28	#define MCTP_HDR_FLAG_TO BIT(3)
	29	#define MCTP_HDR_FLAGS GENMASK(5, 3)
	30	#define MCTP_HDR_SEQ_SHIFT 4
	31	#define MCTP_HDR_SEQ_MASK GENMASK(1, 0)
	32	#define MCTP_HDR_TAG_SHIFT 0
	33	#define MCTP_HDR_TAG_MASK GENMASK(2, 0)
	34
	35	#endif /* __NET_MCTP_H */