/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * Copyright 2019 Joyent, Inc. */ #ifndef _SYS_FSS_H #define _SYS_FSS_H #include <sys/types.h> #include <sys/thread.h> #include <sys/project.h> #include <sys/cpucaps.h> #ifdef __cplusplus extern "C" { #endif #ifdef _KERNEL typedef uint64_t fsspri_t; typedef uint64_t fssusage_t; struct cpupart; struct zone; /* * Valid arg1's for fss_allocbuf() */ #define FSS_NPSET_BUF 1 #define FSS_NPROJ_BUF 2 #define FSS_ONE_BUF 3 /* * Valid arg2's for fss_allocbuf() */ #define FSS_ALLOC_PROJ 1 #define FSS_ALLOC_ZONE 2 #define FSS_MAXSHARES 65535 typedef struct fssbuf { int fssb_size; void **fssb_list; } fssbuf_t; void *fss_allocbuf(int, int); void fss_freebuf(fssbuf_t *, int); void fss_changeproj(kthread_id_t, void *, void *, fssbuf_t *, fssbuf_t *); void fss_changepset(kthread_id_t, void *, fssbuf_t *, fssbuf_t *); /* * Fair share scheduling class specific cpu partition structure */ typedef struct fsspset { kmutex_t fssps_lock; /* lock to protect per-pset */ /* list of fssproj structures */ disp_lock_t fssps_displock; /* lock for fsps_maxfsspri */ struct cpupart *fssps_cpupart; /* ptr to our cpu partition */ /* protected by fsspsets_lock */ fsspri_t fssps_maxfsspri; /* maximum fsspri value among */ /* all projects on this pset */ uint32_t fssps_shares; /* number of active shares */ uint32_t fssps_nproj; /* number of fssproj structures */ /* on the list */ struct fssproj *fssps_list; /* list of project parts */ struct fsszone *fssps_zones; /* list of fsszone_t's in pset */ uint32_t fssps_gen; /* generation for zone's kstats */ } fsspset_t; /* * One of these structures is allocated to each project running within each * active cpu partition. */ typedef struct fssproj { kproject_t *fssp_proj; /* ptr to our project structure */ fsspset_t *fssp_pset; /* ptr to our fsspset structure */ uint32_t fssp_threads; /* total number of threads here */ /* protected by fssps_lock */ uint32_t fssp_runnable; /* number of runnable threads */ /* protected by fssps_lock */ uint32_t fssp_shares; /* copy of our kpj_shares */ /* protected by fssps_displock */ uint32_t fssp_ticks; /* total of nice tick values */ /* protected by fssps_displock */ uint32_t fssp_tick_cnt; /* cnt of all ticks in this sec */ uint32_t fssp_shr_pct; /* active shr % in this sec */ /* protected by fssps_displock */ fssusage_t fssp_usage; /* this project's decayed usage */ fssusage_t fssp_shusage; /* normalized usage */ struct fssproj *fssp_next; /* next project on this pset */ struct fssproj *fssp_prev; /* prev project on this pset */ struct fsszone *fssp_fsszone; /* fsszone_t for this fssproj */ } fssproj_t; /* * Fair share scheduling class specific thread structure */ typedef struct fssproc { kthread_t *fss_tp; /* pointer back to our thread */ fssproj_t *fss_proj; /* pointer to our project FSS data */ uchar_t fss_flags; /* flags defined below */ int fss_timeleft; /* time remaining in procs quantum */ uint32_t fss_ticks; /* ticks accumulated by this thread */ pri_t fss_upri; /* user supplied priority (to priocntl) */ pri_t fss_uprilim; /* user priority limit */ pri_t fss_umdpri; /* user mode priority within fs class */ pri_t fss_scpri; /* remembered priority, for schedctl */ int fss_nice; /* nice value for compatibility with ts */ fsspri_t fss_fsspri; /* internal fair share priority */ int fss_runnable; /* to indicate runnable/sleeping thread */ struct fssproc *fss_next; /* pointer to next fssproc_t struct */ struct fssproc *fss_prev; /* pointer to prev fssproc_t sturct */ caps_sc_t fss_caps; /* CPU caps specific data */ } fssproc_t; /* * One of these structures is allocated to each zone running within * each active cpu partition. This means that if a zone spans more * than one cpu partition then it will have a few of these structures. */ typedef struct fsszone { struct zone *fssz_zone; /* ptr to our zone structure */ struct fsszone *fssz_next; /* next fsszone_t in fsspset_t */ struct fsszone *fssz_prev; /* prev fsszone_t in fsspset_t */ uint32_t fssz_shares; /* sum of all project shares */ uint32_t fssz_nproj; /* # of projects */ uint32_t fssz_rshares; /* "real" shares given to zone */ uint32_t fssz_runnable; /* # of runnable projects */ } fsszone_t; #define FSSPROC(tx) ((fssproc_t *)(tx->t_cldata)) #define FSSPROC2FSSPROJ(fssx) ((fssx)->fss_proj); #define FSSPROC2FSSPSET(fssx) (FSSPROC2FSSPROJ(fssx)->fssp_pset) #define FSSPROJ(tx) (FSSPROC(tx)->fss_proj) #define FSSPROJ2FSSPSET(fssx) ((fssx)->fssp_pset) #define FSSPROJ2KPROJ(fssx) ((fssx)->fssp_proj) #define FSSPROJ2FSSZONE(fssx) ((fssx)->fssp_fsszone) /* * fss_flags */ #define FSSBACKQ 0x02 /* thread should be placed at the back of */ /* the dispatch queue if preempted */ #define FSSRESTORE 0x04 /* thread was not preempted, due to schedctl */ /* restore priority from fss_scpri */ #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_FSS_H */
