xref: /freebsd/sys/dev/ice/ice_defs.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
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 
32 #ifndef _ICE_DEFS_H_
33 #define _ICE_DEFS_H_
34 
35 #define ETH_ALEN	6
36 
37 #define ETH_HEADER_LEN	14
38 
39 #define BIT(a) (1UL << (a))
40 #ifndef BIT_ULL
41 #define BIT_ULL(a) (1ULL << (a))
42 #endif /* !BIT_ULL */
43 
44 #define BITS_PER_BYTE	8
45 
46 #define _FORCE_
47 
48 #define ICE_BYTES_PER_WORD	2
49 #define ICE_BYTES_PER_DWORD	4
50 #define ICE_MAX_TRAFFIC_CLASS	8
51 
52 #ifndef MIN_T
53 #define MIN_T(_t, _a, _b)	min((_t)(_a), (_t)(_b))
54 #endif /* !MIN_T */
55 
56 #define IS_ASCII(_ch)	((_ch) < 0x80)
57 
58 #define STRUCT_HACK_VAR_LEN
59 /**
60  * ice_struct_size - size of struct with C99 flexible array member
61  * @ptr: pointer to structure
62  * @field: flexible array member (last member of the structure)
63  * @num: number of elements of that flexible array member
64  */
65 #define ice_struct_size(ptr, field, num) \
66 	(sizeof(*(ptr)) + sizeof(*(ptr)->field) * (num))
67 
68 #define FLEX_ARRAY_SIZE(_ptr, _mem, cnt) ((cnt) * sizeof(_ptr->_mem[0]))
69 
70 #endif /* _ICE_DEFS_H_ */
71