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1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2004 Silicon Graphics, Inc. All rights reserved. | |
7 | * | |
8 | * Data types used by the SN_SAL_HWPERF_OP SAL call for monitoring | |
9 | * SGI Altix node and router hardware | |
10 | * | |
11 | * Mark Goodwin <markgw@sgi.com> Mon Aug 30 12:23:46 EST 2004 | |
12 | */ | |
13 | ||
14 | #ifndef SN_HWPERF_H | |
15 | #define SN_HWPERF_H | |
16 | ||
17 | /* | |
18 | * object structure. SN_HWPERF_ENUM_OBJECTS and SN_HWPERF_GET_CPU_INFO | |
19 | * return an array of these. Do not change this without also | |
20 | * changing the corresponding SAL code. | |
21 | */ | |
22 | #define SN_HWPERF_MAXSTRING 128 | |
23 | struct sn_hwperf_object_info { | |
24 | u32 id; | |
25 | union { | |
26 | struct { | |
27 | u64 this_part:1; | |
28 | u64 is_shared:1; | |
29 | } fields; | |
30 | struct { | |
31 | u64 flags; | |
32 | u64 reserved; | |
33 | } b; | |
34 | } f; | |
35 | char name[SN_HWPERF_MAXSTRING]; | |
36 | char location[SN_HWPERF_MAXSTRING]; | |
37 | u32 ports; | |
38 | }; | |
39 | ||
40 | #define sn_hwp_this_part f.fields.this_part | |
41 | #define sn_hwp_is_shared f.fields.is_shared | |
42 | #define sn_hwp_flags f.b.flags | |
43 | ||
44 | /* macros for object classification */ | |
45 | #define SN_HWPERF_IS_NODE(x) ((x) && strstr((x)->name, "SHub")) | |
46 | #define SN_HWPERF_IS_IONODE(x) ((x) && strstr((x)->name, "TIO")) | |
47 | #define SN_HWPERF_IS_ROUTER(x) ((x) && strstr((x)->name, "Router")) | |
48 | #define SN_HWPERF_IS_NL3ROUTER(x) ((x) && strstr((x)->name, "NL3Router")) | |
49 | #define SN_HWPERF_FOREIGN(x) ((x) && !(x)->sn_hwp_this_part && !(x)->sn_hwp_is_shared) | |
50 | #define SN_HWPERF_SAME_OBJTYPE(x,y) ((SN_HWPERF_IS_NODE(x) && SN_HWPERF_IS_NODE(y)) ||\ | |
51 | (SN_HWPERF_IS_IONODE(x) && SN_HWPERF_IS_IONODE(y)) ||\ | |
52 | (SN_HWPERF_IS_ROUTER(x) && SN_HWPERF_IS_ROUTER(y))) | |
53 | ||
54 | /* numa port structure, SN_HWPERF_ENUM_PORTS returns an array of these */ | |
55 | struct sn_hwperf_port_info { | |
56 | u32 port; | |
57 | u32 conn_id; | |
58 | u32 conn_port; | |
59 | }; | |
60 | ||
61 | /* for HWPERF_{GET,SET}_MMRS */ | |
62 | struct sn_hwperf_data { | |
63 | u64 addr; | |
64 | u64 data; | |
65 | }; | |
66 | ||
67 | /* user ioctl() argument, see below */ | |
68 | struct sn_hwperf_ioctl_args { | |
69 | u64 arg; /* argument, usually an object id */ | |
70 | u64 sz; /* size of transfer */ | |
71 | void *ptr; /* pointer to source/target */ | |
72 | u32 v0; /* second return value */ | |
73 | }; | |
74 | ||
75 | /* | |
76 | * For SN_HWPERF_{GET,SET}_MMRS and SN_HWPERF_OBJECT_DISTANCE, | |
77 | * sn_hwperf_ioctl_args.arg can be used to specify a CPU on which | |
78 | * to call SAL, and whether to use an interprocessor interrupt | |
79 | * or task migration in order to do so. If the CPU specified is | |
80 | * SN_HWPERF_ARG_ANY_CPU, then the current CPU will be used. | |
81 | */ | |
82 | #define SN_HWPERF_ARG_ANY_CPU 0x7fffffffUL | |
83 | #define SN_HWPERF_ARG_CPU_MASK 0x7fffffff00000000ULL | |
84 | #define SN_HWPERF_ARG_USE_IPI_MASK 0x8000000000000000ULL | |
85 | #define SN_HWPERF_ARG_OBJID_MASK 0x00000000ffffffffULL | |
86 | ||
87 | /* | |
88 | * ioctl requests on the "sn_hwperf" misc device that call SAL. | |
89 | */ | |
90 | #define SN_HWPERF_OP_MEM_COPYIN 0x1000 | |
91 | #define SN_HWPERF_OP_MEM_COPYOUT 0x2000 | |
92 | #define SN_HWPERF_OP_MASK 0x0fff | |
93 | ||
94 | /* | |
95 | * Determine mem requirement. | |
96 | * arg don't care | |
97 | * sz 8 | |
98 | * p pointer to u64 integer | |
99 | */ | |
100 | #define SN_HWPERF_GET_HEAPSIZE 1 | |
101 | ||
102 | /* | |
103 | * Install mem for SAL drvr | |
104 | * arg don't care | |
105 | * sz sizeof buffer pointed to by p | |
106 | * p pointer to buffer for scratch area | |
107 | */ | |
108 | #define SN_HWPERF_INSTALL_HEAP 2 | |
109 | ||
110 | /* | |
111 | * Determine number of objects | |
112 | * arg don't care | |
113 | * sz 8 | |
114 | * p pointer to u64 integer | |
115 | */ | |
116 | #define SN_HWPERF_OBJECT_COUNT (10|SN_HWPERF_OP_MEM_COPYOUT) | |
117 | ||
118 | /* | |
119 | * Determine object "distance", relative to a cpu. This operation can | |
120 | * execute on a designated logical cpu number, using either an IPI or | |
121 | * via task migration. If the cpu number is SN_HWPERF_ANY_CPU, then | |
122 | * the current CPU is used. See the SN_HWPERF_ARG_* macros above. | |
123 | * | |
124 | * arg bitmap of IPI flag, cpu number and object id | |
125 | * sz 8 | |
126 | * p pointer to u64 integer | |
127 | */ | |
128 | #define SN_HWPERF_OBJECT_DISTANCE (11|SN_HWPERF_OP_MEM_COPYOUT) | |
129 | ||
130 | /* | |
131 | * Enumerate objects. Special case if sz == 8, returns the required | |
132 | * buffer size. | |
133 | * arg don't care | |
134 | * sz sizeof buffer pointed to by p | |
135 | * p pointer to array of struct sn_hwperf_object_info | |
136 | */ | |
137 | #define SN_HWPERF_ENUM_OBJECTS (12|SN_HWPERF_OP_MEM_COPYOUT) | |
138 | ||
139 | /* | |
140 | * Enumerate NumaLink ports for an object. Special case if sz == 8, | |
141 | * returns the required buffer size. | |
142 | * arg object id | |
143 | * sz sizeof buffer pointed to by p | |
144 | * p pointer to array of struct sn_hwperf_port_info | |
145 | */ | |
146 | #define SN_HWPERF_ENUM_PORTS (13|SN_HWPERF_OP_MEM_COPYOUT) | |
147 | ||
148 | /* | |
149 | * SET/GET memory mapped registers. These operations can execute | |
150 | * on a designated logical cpu number, using either an IPI or via | |
151 | * task migration. If the cpu number is SN_HWPERF_ANY_CPU, then | |
152 | * the current CPU is used. See the SN_HWPERF_ARG_* macros above. | |
153 | * | |
154 | * arg bitmap of ipi flag, cpu number and object id | |
155 | * sz sizeof buffer pointed to by p | |
156 | * p pointer to array of struct sn_hwperf_data | |
157 | */ | |
158 | #define SN_HWPERF_SET_MMRS (14|SN_HWPERF_OP_MEM_COPYIN) | |
159 | #define SN_HWPERF_GET_MMRS (15|SN_HWPERF_OP_MEM_COPYOUT| \ | |
160 | SN_HWPERF_OP_MEM_COPYIN) | |
161 | /* | |
162 | * Lock a shared object | |
163 | * arg object id | |
164 | * sz don't care | |
165 | * p don't care | |
166 | */ | |
167 | #define SN_HWPERF_ACQUIRE 16 | |
168 | ||
169 | /* | |
170 | * Unlock a shared object | |
171 | * arg object id | |
172 | * sz don't care | |
173 | * p don't care | |
174 | */ | |
175 | #define SN_HWPERF_RELEASE 17 | |
176 | ||
177 | /* | |
178 | * Break a lock on a shared object | |
179 | * arg object id | |
180 | * sz don't care | |
181 | * p don't care | |
182 | */ | |
183 | #define SN_HWPERF_FORCE_RELEASE 18 | |
184 | ||
185 | /* | |
186 | * ioctl requests on "sn_hwperf" that do not call SAL | |
187 | */ | |
188 | ||
189 | /* | |
190 | * get cpu info as an array of hwperf_object_info_t. | |
191 | * id is logical CPU number, name is description, location | |
192 | * is geoid (e.g. 001c04#1c). Special case if sz == 8, | |
193 | * returns the required buffer size. | |
194 | * | |
195 | * arg don't care | |
196 | * sz sizeof buffer pointed to by p | |
197 | * p pointer to array of struct sn_hwperf_object_info | |
198 | */ | |
199 | #define SN_HWPERF_GET_CPU_INFO (100|SN_HWPERF_OP_MEM_COPYOUT) | |
200 | ||
201 | /* | |
202 | * Given an object id, return it's node number (aka cnode). | |
203 | * arg object id | |
204 | * sz 8 | |
205 | * p pointer to u64 integer | |
206 | */ | |
207 | #define SN_HWPERF_GET_OBJ_NODE (101|SN_HWPERF_OP_MEM_COPYOUT) | |
208 | ||
209 | /* | |
210 | * Given a node number (cnode), return it's nasid. | |
211 | * arg ordinal node number (aka cnodeid) | |
212 | * sz 8 | |
213 | * p pointer to u64 integer | |
214 | */ | |
215 | #define SN_HWPERF_GET_NODE_NASID (102|SN_HWPERF_OP_MEM_COPYOUT) | |
216 | ||
217 | /* return codes */ | |
218 | #define SN_HWPERF_OP_OK 0 | |
219 | #define SN_HWPERF_OP_NOMEM 1 | |
220 | #define SN_HWPERF_OP_NO_PERM 2 | |
221 | #define SN_HWPERF_OP_IO_ERROR 3 | |
222 | #define SN_HWPERF_OP_BUSY 4 | |
223 | #define SN_HWPERF_OP_RECONFIGURE 253 | |
224 | #define SN_HWPERF_OP_INVAL 254 | |
225 | ||
226 | #endif /* SN_HWPERF_H */ |