Hardware Locality (hwloc) 1.5.1

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myriexpress.h
1 /*
2 * Copyright © 2010-2012 inria. All rights reserved.
3 * Copyright © 2011 Cisco Systems, Inc. All rights reserved.
4 * See COPYING in top-level directory.
5 */
6
15 #ifndef HWLOC_MYRIEXPRESS_H
16 #define HWLOC_MYRIEXPRESS_H
17
18 #include <hwloc.h>
19 #include <hwloc/autogen/config.h>
20 #include <hwloc/linux.h>
21
22 #include <myriexpress.h>
23
24
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
28
29
42 static inline int
43 hwloc_mx_board_get_device_cpuset(hwloc_topology_t topology,
44 unsigned id, hwloc_cpuset_t set)
45 {
46 uint32_t in, out;
47
48 if (!hwloc_topology_is_thissystem(topology)) {
49 errno = EINVAL;
50 return -1;
51 }
52
53 in = id;
54 if (mx_get_info(NULL, MX_NUMA_NODE, &in, sizeof(in), &out, sizeof(out)) != MX_SUCCESS) {
55 errno = EINVAL;
56 return -1;
57 }
58
59 if (out != (uint32_t) -1) {
60 hwloc_obj_t obj = NULL;
61 while ((obj = hwloc_get_next_obj_by_type(topology, HWLOC_OBJ_NODE, obj)) != NULL)
62 if (obj->os_index == out) {
63 hwloc_bitmap_copy(set, obj->cpuset);
64 goto out;
65 }
66 }
67 /* fallback to the full topology cpuset */
68 hwloc_bitmap_copy(set, hwloc_topology_get_complete_cpuset(topology));
69
70 out:
71 return 0;
72 }
73
82 static inline int
83 hwloc_mx_endpoint_get_device_cpuset(hwloc_topology_t topology,
84 mx_endpoint_t endpoint, hwloc_cpuset_t set)
85 {
86 uint64_t nid;
87 uint32_t nindex, eid;
88 mx_endpoint_addr_t eaddr;
89
90 if (mx_get_endpoint_addr(endpoint, &eaddr) != MX_SUCCESS) {
91 errno = EINVAL;
92 return -1;
93 }
94
95 if (mx_decompose_endpoint_addr(eaddr, &nid, &eid) != MX_SUCCESS) {
96 errno = EINVAL;
97 return -1;
98 }
99
100 if (mx_nic_id_to_board_number(nid, &nindex) != MX_SUCCESS) {
101 errno = EINVAL;
102 return -1;
103 }
104
105 return hwloc_mx_board_get_device_cpuset(topology, nindex, set);
106 }
107
111 #ifdef __cplusplus
112 } /* extern "C" */
113 #endif
114
115
116 #endif /* HWLOC_MYRIEXPRESS_H */