1
2
3
4
5#ifndef _SCHED_H_
6#define _SCHED_H_
7
8
9
10
11
12
13#ifdef __cplusplus
14extern "C" {
15#endif
16
17#ifndef CPU_SETSIZE
18#define CPU_SETSIZE RTE_MAX_LCORE
19#endif
20
21#define _BITS_PER_SET (sizeof(long long) * 8)
22#define _BIT_SET_MASK (_BITS_PER_SET - 1)
23
24#define _NUM_SETS(b) (((b) + _BIT_SET_MASK) / _BITS_PER_SET)
25#define _WHICH_SET(b) ((b) / _BITS_PER_SET)
26#define _WHICH_BIT(b) ((b) & (_BITS_PER_SET - 1))
27
28typedef struct _rte_cpuset_s {
29 long long _bits[_NUM_SETS(CPU_SETSIZE)];
30} rte_cpuset_t;
31#define RTE_HAS_CPUSET
32
33#define CPU_SET(b, s) ((s)->_bits[_WHICH_SET(b)] |= (1LL << _WHICH_BIT(b)))
34
35#define CPU_ZERO(s) \
36 do { \
37 unsigned int _i; \
38 \
39 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++) \
40 (s)->_bits[_i] = 0LL; \
41 } while (0)
42
43#define CPU_ISSET(b, s) (((s)->_bits[_WHICH_SET(b)] & \
44 (1LL << _WHICH_BIT(b))) != 0LL)
45
46static inline int
47count_cpu(rte_cpuset_t *s)
48{
49 unsigned int _i;
50 int count = 0;
51
52 for (_i = 0; _i < CPU_SETSIZE; _i++)
53 if (CPU_ISSET(_i, s) != 0LL)
54 count++;
55 return count;
56}
57#define CPU_COUNT(s) count_cpu(s)
58
59#define CPU_AND(dst, src1, src2) \
60do { \
61 unsigned int _i; \
62 \
63 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++) \
64 (dst)->_bits[_i] = (src1)->_bits[_i] & (src2)->_bits[_i]; \
65} while (0)
66
67#define CPU_OR(dst, src1, src2) \
68do { \
69 unsigned int _i; \
70 \
71 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++) \
72 (dst)->_bits[_i] = (src1)->_bits[_i] | (src2)->_bits[_i]; \
73} while (0)
74
75#define CPU_FILL(s) \
76do { \
77 unsigned int _i; \
78 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++) \
79 (s)->_bits[_i] = -1LL; \
80} while (0)
81
82#define CPU_NOT(dst, src) \
83do { \
84 unsigned int _i; \
85 for (_i = 0; _i < _NUM_SETS(CPU_SETSIZE); _i++) \
86 (dst)->_bits[_i] = (src)->_bits[_i] ^ -1LL; \
87} while (0)
88
89#ifdef __cplusplus
90}
91#endif
92
93#endif
94