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     'ˆÇÆƒu÷ÞÅ¾Ê >    '/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
 * Copyright (c) 2004 Topspin Corporation.  All rights reserved.
 */

#ifndef IB_PACK_H
#define IB_PACK_H

#include <rdma/ib_verbs.h>
#include <uapi/linux/if_ether.h>

enum {
	IB_LRH_BYTES		= 8,
	IB_ETH_BYTES		= 14,
	IB_VLAN_BYTES		= 4,
	IB_GRH_BYTES		= 40,
	IB_IP4_BYTES		= 20,
	IB_UDP_BYTES		= 8,
	IB_BTH_BYTES		= 12,
	IB_DETH_BYTES		= 8,
	IB_EXT_ATOMICETH_BYTES	= 28,
	IB_EXT_XRC_BYTES	= 4,
	IB_ICRC_BYTES		= 4
};

struct ib_field {
	size_t struct_offset_bytes;
	size_t struct_size_bytes;
	int    offset_words;
	int    offset_bits;
	int    size_bits;
	char  *field_name;
};

#define RESERVED \
	.field_name          = "reserved"

/*
 * This macro cleans up the definitions of constants for BTH opcodes.
 * It is used to define constants such as IB_OPCODE_UD_SEND_ONLY,
 * which becomes IB_OPCODE_UD + IB_OPCODE_SEND_ONLY, and this gives
 * the correct value.
 *
 * In short, user code should use the constants defined using the
 * macro rather than worrying about adding together other constants.
*/
#define IB_OPCODE(transport, op) \
	IB_OPCODE_ ## transport ## _ ## op = \
		IB_OPCODE_ ## transport + IB_OPCODE_ ## op

enum {
	/* transport types -- just used to define real constants */
	IB_OPCODE_RC                                = 0x00,
	IB_OPCODE_UC                                = 0x20,
	IB_OPCODE_RD                                = 0x40,
	IB_OPCODE_UD                                = 0x60,
	/* per IBTA 1.3 vol 1 Table 38, A10.3.2 */
	IB_OPCODE_CNP                               = 0x80,
	/* Manufacturer specific */
	IB_OPCODE_MSP                               = 0xe0,

	/* operations -- just used to define real constants */
	IB_OPCODE_SEND_FIRST                        = 0x00,
	IB_OPCODE_SEND_MIDDLE                       = 0x01,
	IB_OPCODE_SEND_LAST                         = 0x02,
	IB_OPCODE_SEND_LAST_WITH_IMMEDIATE          = 0x03,
	IB_OPCODE_SEND_ONLY                         = 0x04,
	IB_OPCODE_SEND_ONLY_WITH_IMMEDIATE          = 0x05,
	IB_OPCODE_RDMA_WRITE_FIRST                  = 0x06,
	IB_OPCODE_RDMA_WRITE_MIDDLE                 = 0x07,
	IB_OPCODE_RDMA_WRITE_LAST                   = 0x08,
	IB_OPCODE_RDMA_WRITE_LAST_WITH_IMMEDIATE    = 0x09,
	IB_OPCODE_RDMA_WRITE_ONLY                   = 0x0a,
	IB_OPCODE_RDMA_WRITE_ONLY_WITH_IMMEDIATE    = 0x0b,
	IB_OPCODE_RDMA_READ_REQUEST                 = 0x0c,
	IB_OPCODE_RDMA_READ_RESPONSE_FIRST          = 0x0d,
	IB_OPCODE_RDMA_READ_RESPONSE_MIDDLE         = 0x0e,
	IB_OPCODE_RDMA_READ_RESPONSE_LAST           = 0x0f,
	IB_OPCODE_RDMA_READ_RESPONSE_ONLY           = 0x10,
	IB_OPCODE_ACKNOWLEDGE                       = 0x11,
	IB_OPCODE_ATOMIC_ACKNOWLEDGE                = 0x12,
	IB_OPCODE_COMPARE_SWAP                      = 0x13,
	IB_OPCODE_FETCH_ADD                         = 0x14,
	/* opcode 0x15 is reserved */
	IB_OPCODE_SEND_LAST_WITH_INVALIDATE         = 0x16,
	IB_OPCODE_SEND_ONLY_WITH_INVALIDATE         = 0x17,
	IB_OPCODE_FLUSH                             = 0x1C,
	IB_OPCODE_ATOMIC_WRITE                      = 0x1D,

	/* real constants follow -- see comment about above IB_OPCODE()
	   macro for more details */

	/* RC */
	IB_OPCODE(RC, SEND_FIRST),
	IB_OPCODE(RC, SEND_MIDDLE),
	IB_OPCODE(RC, SEND_LAST),
	IB_OPCODE(RC, SEND_LAST_WITH_IMMEDIATE),
	IB_OPCODE(RC, SEND_ONLY),
	IB_OPCODE(RC, SEND_ONLY_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_WRITE_FIRST),
	IB_OPCODE(RC, RDMA_WRITE_MIDDLE),
	IB_OPCODE(RC, RDMA_WRITE_LAST),
	IB_OPCODE(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_WRITE_ONLY),
	IB_OPCODE(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE),
	IB_OPCODE(RC, RDMA_READ_REQUEST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_FIRST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_MIDDLE),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_LAST),
	IB_OPCODE(RC, RDMA_READ_RESPONSE_ONLY),
	IB_OPCODE(RC, ACKNOWLEDGE),
	IB_OPCODE(RC, ATOMIC_ACKNOWLEDGE),
	IB_OPCODE(RC, COMPARE_SWAP),
	IB_OPCODE(RC, FETCH_ADD),
	IB_OPCODE(RC, SEND_LAST_WITH_INVALIDATE),
	IB_OPCODE(RC, SEND_ONLY_WITH_INVALIDATE),
	IB_OPCODE(RC, FLUSH),
	IB_OPCODE(RC, ATOMIC_WRITE),

	/* UC */
	I