1/*
2 * Copyright (c) 1980, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)param.c 8.3 (Berkeley) 8/20/94
| 1/*
2 * Copyright (c) 1980, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 * (c) UNIX System Laboratories, Inc.
5 * All or some portions of this file are derived from material licensed
6 * to the University of California by American Telephone and Telegraph
7 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8 * the permission of UNIX System Laboratories, Inc.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * @(#)param.c 8.3 (Berkeley) 8/20/94
|
39 * $Id: param.c,v 1.15 1996/03/02 18:23:57 peter Exp $
| 39 * $Id: param.c,v 1.16 1996/03/11 05:52:50 hsu Exp $
|
40 */
41
42#include "opt_sysvipc.h"
43#include "opt_param.h"
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/socket.h>
48#include <sys/proc.h>
49#include <sys/vnode.h>
50#include <sys/file.h>
51#include <sys/callout.h>
52#include <sys/clist.h>
53#include <sys/mbuf.h>
54#include <sys/kernel.h>
55
56#include <ufs/ufs/quota.h>
57
58#ifdef SYSVSHM
59#include <machine/vmparam.h>
60#include <sys/shm.h>
61#endif
62#ifdef SYSVSEM
63#include <sys/sem.h>
64#endif
65#ifdef SYSVMSG
66#include <sys/msg.h>
67#endif
68
69/*
70 * System parameter formulae.
71 *
72 * This file is copied into each directory where we compile
73 * the kernel; it should be modified there to suit local taste
74 * if necessary.
75 *
76 * Compiled with -DMAXUSERS=xx
77 */
78
79#ifndef HZ
80#define HZ 100
81#endif
82int hz = HZ;
83int tick = 1000000 / HZ;
84int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */
85#define NPROC (20 + 16 * MAXUSERS)
86int maxproc = NPROC; /* maximum # of processes */
87int maxprocperuid = NPROC-1; /* maximum # of processes per user */
88int maxfiles = NPROC*2; /* system wide open files limit */
89int maxfilesperproc = NPROC*2; /* per-process open files limit */
90int ncallout = 16 + NPROC; /* maximum # of timer events */
91
92/* maximum # of mbuf clusters */
93#ifndef NMBCLUSTERS
94int nmbclusters = 512 + MAXUSERS * 16;
95#else
96int nmbclusters = NMBCLUSTERS;
97#endif
98
99int fscale = FSCALE; /* kernel uses `FSCALE', user uses `fscale' */
100
101/*
102 * Values in support of System V compatible shared memory. XXX
103 */
104#ifdef SYSVSHM
105#ifndef SHMMAX
| 40 */
41
42#include "opt_sysvipc.h"
43#include "opt_param.h"
44
45#include <sys/param.h>
46#include <sys/systm.h>
47#include <sys/socket.h>
48#include <sys/proc.h>
49#include <sys/vnode.h>
50#include <sys/file.h>
51#include <sys/callout.h>
52#include <sys/clist.h>
53#include <sys/mbuf.h>
54#include <sys/kernel.h>
55
56#include <ufs/ufs/quota.h>
57
58#ifdef SYSVSHM
59#include <machine/vmparam.h>
60#include <sys/shm.h>
61#endif
62#ifdef SYSVSEM
63#include <sys/sem.h>
64#endif
65#ifdef SYSVMSG
66#include <sys/msg.h>
67#endif
68
69/*
70 * System parameter formulae.
71 *
72 * This file is copied into each directory where we compile
73 * the kernel; it should be modified there to suit local taste
74 * if necessary.
75 *
76 * Compiled with -DMAXUSERS=xx
77 */
78
79#ifndef HZ
80#define HZ 100
81#endif
82int hz = HZ;
83int tick = 1000000 / HZ;
84int tickadj = 30000 / (60 * HZ); /* can adjust 30ms in 60s */
85#define NPROC (20 + 16 * MAXUSERS)
86int maxproc = NPROC; /* maximum # of processes */
87int maxprocperuid = NPROC-1; /* maximum # of processes per user */
88int maxfiles = NPROC*2; /* system wide open files limit */
89int maxfilesperproc = NPROC*2; /* per-process open files limit */
90int ncallout = 16 + NPROC; /* maximum # of timer events */
91
92/* maximum # of mbuf clusters */
93#ifndef NMBCLUSTERS
94int nmbclusters = 512 + MAXUSERS * 16;
95#else
96int nmbclusters = NMBCLUSTERS;
97#endif
98
99int fscale = FSCALE; /* kernel uses `FSCALE', user uses `fscale' */
100
101/*
102 * Values in support of System V compatible shared memory. XXX
103 */
104#ifdef SYSVSHM
105#ifndef SHMMAX
|
106#define SHMMAX (SHMMAXPGS*NBPG)
| 106#define SHMMAX (SHMMAXPGS*PAGE_SIZE)
|
107#endif
108#ifndef SHMMIN
109#define SHMMIN 1
110#endif
111#ifndef SHMMNI
112#define SHMMNI 32 /* <= SHMMMNI in shm.h */
113#endif
114#ifndef SHMSEG
115#define SHMSEG 8
116#endif
117#ifndef SHMALL
118#define SHMALL (SHMMAXPGS/CLSIZE)
119#endif
120
121struct shminfo shminfo = {
122 SHMMAX,
123 SHMMIN,
124 SHMMNI,
125 SHMSEG,
126 SHMALL
127};
128#endif
129
130/*
131 * Values in support of System V compatible semaphores.
132 */
133
134#ifdef SYSVSEM
135
136struct seminfo seminfo = {
137 SEMMAP, /* # of entries in semaphore map */
138 SEMMNI, /* # of semaphore identifiers */
139 SEMMNS, /* # of semaphores in system */
140 SEMMNU, /* # of undo structures in system */
141 SEMMSL, /* max # of semaphores per id */
142 SEMOPM, /* max # of operations per semop call */
143 SEMUME, /* max # of undo entries per process */
144 SEMUSZ, /* size in bytes of undo structure */
145 SEMVMX, /* semaphore maximum value */
146 SEMAEM /* adjust on exit max value */
147};
148#endif
149
150/*
151 * Values in support of System V compatible messages.
152 */
153
154#ifdef SYSVMSG
155
156struct msginfo msginfo = {
157 MSGMAX, /* max chars in a message */
158 MSGMNI, /* # of message queue identifiers */
159 MSGMNB, /* max chars in a queue */
160 MSGTQL, /* max messages in system */
161 MSGSSZ, /* size of a message segment */
162 /* (must be small power of 2 greater than 4) */
163 MSGSEG /* number of message segments */
164};
165#endif
166
167/*
168 * These may be set to nonzero here or by patching.
169 * If they are nonzero at bootstrap time then they are
170 * initialized to values dependent on the memory size.
171 */
172#ifdef NBUF
173int nbuf = NBUF;
174#else
175int nbuf = 0;
176#endif
177int nswbuf = 0;
178
179/*
180 * These have to be allocated somewhere; allocating
181 * them here forces loader errors if this file is omitted
182 * (if they've been externed everywhere else; hah!).
183 */
184struct buf *swbuf;
| 107#endif
108#ifndef SHMMIN
109#define SHMMIN 1
110#endif
111#ifndef SHMMNI
112#define SHMMNI 32 /* <= SHMMMNI in shm.h */
113#endif
114#ifndef SHMSEG
115#define SHMSEG 8
116#endif
117#ifndef SHMALL
118#define SHMALL (SHMMAXPGS/CLSIZE)
119#endif
120
121struct shminfo shminfo = {
122 SHMMAX,
123 SHMMIN,
124 SHMMNI,
125 SHMSEG,
126 SHMALL
127};
128#endif
129
130/*
131 * Values in support of System V compatible semaphores.
132 */
133
134#ifdef SYSVSEM
135
136struct seminfo seminfo = {
137 SEMMAP, /* # of entries in semaphore map */
138 SEMMNI, /* # of semaphore identifiers */
139 SEMMNS, /* # of semaphores in system */
140 SEMMNU, /* # of undo structures in system */
141 SEMMSL, /* max # of semaphores per id */
142 SEMOPM, /* max # of operations per semop call */
143 SEMUME, /* max # of undo entries per process */
144 SEMUSZ, /* size in bytes of undo structure */
145 SEMVMX, /* semaphore maximum value */
146 SEMAEM /* adjust on exit max value */
147};
148#endif
149
150/*
151 * Values in support of System V compatible messages.
152 */
153
154#ifdef SYSVMSG
155
156struct msginfo msginfo = {
157 MSGMAX, /* max chars in a message */
158 MSGMNI, /* # of message queue identifiers */
159 MSGMNB, /* max chars in a queue */
160 MSGTQL, /* max messages in system */
161 MSGSSZ, /* size of a message segment */
162 /* (must be small power of 2 greater than 4) */
163 MSGSEG /* number of message segments */
164};
165#endif
166
167/*
168 * These may be set to nonzero here or by patching.
169 * If they are nonzero at bootstrap time then they are
170 * initialized to values dependent on the memory size.
171 */
172#ifdef NBUF
173int nbuf = NBUF;
174#else
175int nbuf = 0;
176#endif
177int nswbuf = 0;
178
179/*
180 * These have to be allocated somewhere; allocating
181 * them here forces loader errors if this file is omitted
182 * (if they've been externed everywhere else; hah!).
183 */
184struct buf *swbuf;
|