xref: /freebsd/sys/dev/ice/ice_defs.h (revision 4e8d558c)
1 /* SPDX-License-Identifier: BSD-3-Clause */
2 /*  Copyright (c) 2023, Intel Corporation
3  *  All rights reserved.
4  *
5  *  Redistribution and use in source and binary forms, with or without
6  *  modification, are permitted provided that the following conditions are met:
7  *
8  *   1. Redistributions of source code must retain the above copyright notice,
9  *      this list of conditions and the following disclaimer.
10  *
11  *   2. Redistributions in binary form must reproduce the above copyright
12  *      notice, this list of conditions and the following disclaimer in the
13  *      documentation and/or other materials provided with the distribution.
14  *
15  *   3. Neither the name of the Intel Corporation nor the names of its
16  *      contributors may be used to endorse or promote products derived from
17  *      this software without specific prior written permission.
18  *
19  *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20  *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  *  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23  *  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  *  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  *  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  *  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  *  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  *  POSSIBILITY OF SUCH DAMAGE.
30  */
31 /*$FreeBSD$*/
32 
33 #ifndef _ICE_DEFS_H_
34 #define _ICE_DEFS_H_
35 
36 #define ETH_ALEN	6
37 
38 #define ETH_HEADER_LEN	14
39 
40 #define BIT(a) (1UL << (a))
41 #ifndef BIT_ULL
42 #define BIT_ULL(a) (1ULL << (a))
43 #endif /* BIT_ULL */
44 
45 #define BITS_PER_BYTE	8
46 
47 #define _FORCE_
48 
49 #define ICE_BYTES_PER_WORD	2
50 #define ICE_BYTES_PER_DWORD	4
51 #define ICE_MAX_TRAFFIC_CLASS	8
52 
53 #ifndef MIN_T
54 #define MIN_T(_t, _a, _b)	min((_t)(_a), (_t)(_b))
55 #endif
56 
57 #define IS_ASCII(_ch)	((_ch) < 0x80)
58 
59 #define STRUCT_HACK_VAR_LEN
60 /**
61  * ice_struct_size - size of struct with C99 flexible array member
62  * @ptr: pointer to structure
63  * @field: flexible array member (last member of the structure)
64  * @num: number of elements of that flexible array member
65  */
66 #define ice_struct_size(ptr, field, num) \
67 	(sizeof(*(ptr)) + sizeof(*(ptr)->field) * (num))
68 
69 #define FLEX_ARRAY_SIZE(_ptr, _mem, cnt) ((cnt) * sizeof(_ptr->_mem[0]))
70 
71 #endif /* _ICE_DEFS_H_ */
72