243 lines
6.9 KiB
C
243 lines
6.9 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2004 Silicon Graphics, Inc. All rights reserved.
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*
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* Data types used by the SN_SAL_HWPERF_OP SAL call for monitoring
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* SGI Altix node and router hardware
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*
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* Mark Goodwin <markgw@sgi.com> Mon Aug 30 12:23:46 EST 2004
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*/
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#ifndef SN_HWPERF_H
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#define SN_HWPERF_H
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/*
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* object structure. SN_HWPERF_ENUM_OBJECTS and SN_HWPERF_GET_CPU_INFO
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* return an array of these. Do not change this without also
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* changing the corresponding SAL code.
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*/
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#define SN_HWPERF_MAXSTRING 128
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struct sn_hwperf_object_info {
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u32 id;
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union {
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struct {
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u64 this_part:1;
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u64 is_shared:1;
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} fields;
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struct {
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u64 flags;
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u64 reserved;
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} b;
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} f;
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char name[SN_HWPERF_MAXSTRING];
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char location[SN_HWPERF_MAXSTRING];
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u32 ports;
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};
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#define sn_hwp_this_part f.fields.this_part
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#define sn_hwp_is_shared f.fields.is_shared
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#define sn_hwp_flags f.b.flags
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/* macros for object classification */
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#define SN_HWPERF_IS_NODE(x) ((x) && strstr((x)->name, "SHub"))
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#define SN_HWPERF_IS_NODE_SHUB2(x) ((x) && strstr((x)->name, "SHub 2."))
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#define SN_HWPERF_IS_IONODE(x) ((x) && strstr((x)->name, "TIO"))
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#define SN_HWPERF_IS_NL3ROUTER(x) ((x) && strstr((x)->name, "NL3Router"))
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#define SN_HWPERF_IS_NL4ROUTER(x) ((x) && strstr((x)->name, "NL4Router"))
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#define SN_HWPERF_IS_OLDROUTER(x) ((x) && strstr((x)->name, "Router"))
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#define SN_HWPERF_IS_ROUTER(x) (SN_HWPERF_IS_NL3ROUTER(x) || \
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SN_HWPERF_IS_NL4ROUTER(x) || \
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SN_HWPERF_IS_OLDROUTER(x))
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#define SN_HWPERF_FOREIGN(x) ((x) && !(x)->sn_hwp_this_part && !(x)->sn_hwp_is_shared)
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#define SN_HWPERF_SAME_OBJTYPE(x,y) ((SN_HWPERF_IS_NODE(x) && SN_HWPERF_IS_NODE(y)) ||\
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(SN_HWPERF_IS_IONODE(x) && SN_HWPERF_IS_IONODE(y)) ||\
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(SN_HWPERF_IS_ROUTER(x) && SN_HWPERF_IS_ROUTER(y)))
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/* numa port structure, SN_HWPERF_ENUM_PORTS returns an array of these */
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struct sn_hwperf_port_info {
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u32 port;
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u32 conn_id;
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u32 conn_port;
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};
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/* for HWPERF_{GET,SET}_MMRS */
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struct sn_hwperf_data {
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u64 addr;
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u64 data;
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};
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/* user ioctl() argument, see below */
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struct sn_hwperf_ioctl_args {
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u64 arg; /* argument, usually an object id */
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u64 sz; /* size of transfer */
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void *ptr; /* pointer to source/target */
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u32 v0; /* second return value */
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};
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/*
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* For SN_HWPERF_{GET,SET}_MMRS and SN_HWPERF_OBJECT_DISTANCE,
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* sn_hwperf_ioctl_args.arg can be used to specify a CPU on which
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* to call SAL, and whether to use an interprocessor interrupt
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* or task migration in order to do so. If the CPU specified is
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* SN_HWPERF_ARG_ANY_CPU, then the current CPU will be used.
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*/
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#define SN_HWPERF_ARG_ANY_CPU 0x7fffffffUL
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#define SN_HWPERF_ARG_CPU_MASK 0x7fffffff00000000ULL
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#define SN_HWPERF_ARG_USE_IPI_MASK 0x8000000000000000ULL
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#define SN_HWPERF_ARG_OBJID_MASK 0x00000000ffffffffULL
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/*
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* ioctl requests on the "sn_hwperf" misc device that call SAL.
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*/
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#define SN_HWPERF_OP_MEM_COPYIN 0x1000
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#define SN_HWPERF_OP_MEM_COPYOUT 0x2000
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#define SN_HWPERF_OP_MASK 0x0fff
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/*
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* Determine mem requirement.
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* arg don't care
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* sz 8
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* p pointer to u64 integer
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*/
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#define SN_HWPERF_GET_HEAPSIZE 1
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/*
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* Install mem for SAL drvr
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* arg don't care
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* sz sizeof buffer pointed to by p
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* p pointer to buffer for scratch area
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*/
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#define SN_HWPERF_INSTALL_HEAP 2
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/*
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* Determine number of objects
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* arg don't care
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* sz 8
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* p pointer to u64 integer
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*/
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#define SN_HWPERF_OBJECT_COUNT (10|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Determine object "distance", relative to a cpu. This operation can
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* execute on a designated logical cpu number, using either an IPI or
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* via task migration. If the cpu number is SN_HWPERF_ANY_CPU, then
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* the current CPU is used. See the SN_HWPERF_ARG_* macros above.
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*
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* arg bitmap of IPI flag, cpu number and object id
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* sz 8
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* p pointer to u64 integer
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*/
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#define SN_HWPERF_OBJECT_DISTANCE (11|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Enumerate objects. Special case if sz == 8, returns the required
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* buffer size.
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* arg don't care
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* sz sizeof buffer pointed to by p
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* p pointer to array of struct sn_hwperf_object_info
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*/
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#define SN_HWPERF_ENUM_OBJECTS (12|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Enumerate NumaLink ports for an object. Special case if sz == 8,
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* returns the required buffer size.
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* arg object id
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* sz sizeof buffer pointed to by p
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* p pointer to array of struct sn_hwperf_port_info
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*/
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#define SN_HWPERF_ENUM_PORTS (13|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* SET/GET memory mapped registers. These operations can execute
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* on a designated logical cpu number, using either an IPI or via
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* task migration. If the cpu number is SN_HWPERF_ANY_CPU, then
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* the current CPU is used. See the SN_HWPERF_ARG_* macros above.
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*
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* arg bitmap of ipi flag, cpu number and object id
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* sz sizeof buffer pointed to by p
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* p pointer to array of struct sn_hwperf_data
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*/
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#define SN_HWPERF_SET_MMRS (14|SN_HWPERF_OP_MEM_COPYIN)
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#define SN_HWPERF_GET_MMRS (15|SN_HWPERF_OP_MEM_COPYOUT| \
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SN_HWPERF_OP_MEM_COPYIN)
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/*
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* Lock a shared object
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* arg object id
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* sz don't care
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* p don't care
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*/
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#define SN_HWPERF_ACQUIRE 16
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/*
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* Unlock a shared object
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* arg object id
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* sz don't care
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* p don't care
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*/
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#define SN_HWPERF_RELEASE 17
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/*
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* Break a lock on a shared object
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* arg object id
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* sz don't care
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* p don't care
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*/
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#define SN_HWPERF_FORCE_RELEASE 18
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/*
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* ioctl requests on "sn_hwperf" that do not call SAL
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*/
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/*
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* get cpu info as an array of hwperf_object_info_t.
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* id is logical CPU number, name is description, location
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* is geoid (e.g. 001c04#1c). Special case if sz == 8,
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* returns the required buffer size.
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*
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* arg don't care
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* sz sizeof buffer pointed to by p
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* p pointer to array of struct sn_hwperf_object_info
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*/
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#define SN_HWPERF_GET_CPU_INFO (100|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Given an object id, return it's node number (aka cnode).
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* arg object id
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* sz 8
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* p pointer to u64 integer
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*/
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#define SN_HWPERF_GET_OBJ_NODE (101|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Given a node number (cnode), return it's nasid.
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* arg ordinal node number (aka cnodeid)
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* sz 8
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* p pointer to u64 integer
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*/
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#define SN_HWPERF_GET_NODE_NASID (102|SN_HWPERF_OP_MEM_COPYOUT)
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/*
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* Given a node id, determine the id of the nearest node with CPUs
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* and the id of the nearest node that has memory. The argument
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* node would normally be a "headless" node, e.g. an "IO node".
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* Return 0 on success.
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*/
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extern int sn_hwperf_get_nearest_node(cnodeid_t node,
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cnodeid_t *near_mem, cnodeid_t *near_cpu);
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/* return codes */
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#define SN_HWPERF_OP_OK 0
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#define SN_HWPERF_OP_NOMEM 1
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#define SN_HWPERF_OP_NO_PERM 2
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#define SN_HWPERF_OP_IO_ERROR 3
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#define SN_HWPERF_OP_BUSY 4
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#define SN_HWPERF_OP_RECONFIGURE 253
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#define SN_HWPERF_OP_INVAL 254
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int sn_topology_open(struct inode *inode, struct file *file);
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int sn_topology_release(struct inode *inode, struct file *file);
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#endif /* SN_HWPERF_H */
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