323 lines
9.9 KiB
C
323 lines
9.9 KiB
C
/* @(#)15 1.6 src/bos/kernel/net/net_malloc.h, sysnet, bos41J, 9511A_all 3/15/95 14:52:40 */
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/*
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* COMPONENT_NAME: SYSNET
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*
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* FUNCTIONS: BUCKETINDX
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* FREE
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* MALLOC
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* NET_FREE
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* NET_MALLOC
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* btokup
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*
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*
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* ORIGINS: 26,27,85
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*
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*
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* (C) COPYRIGHT International Business Machines Corp. 1988,1993
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* All Rights Reserved
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* Licensed Materials - Property of IBM
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* US Government Users Restricted Rights - Use, duplication or
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* disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
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*/
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/*
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* (c) Copyright 1990, 1991, 1992, 1993 OPEN SOFTWARE FOUNDATION, INC.
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* ALL RIGHTS RESERVED
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*/
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/*
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* OSF/1 1.2
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*/
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/*
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* Copyright (c) 1987 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms are permitted provided
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* that: (1) source distributions retain this entire copyright notice and
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* comment, and (2) distributions including binaries display the following
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* acknowledgement: ``This product includes software developed by the
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* University of California, Berkeley and its contributors'' in the
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* documentation or other materials provided with the distribution and in
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* all advertising materials mentioning features or use of this software.
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* Neither the name of the University nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Base: malloc.h 7.16 (Berkeley) 6/28/90
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*/
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#ifndef _NET_NET_MALLOC
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#define _NET_NET_MALLOC
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#define KMEMSTATS
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/*
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* flags to malloc
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*/
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#define M_WAITOK 0x0000
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#define M_NOWAIT 0x0001
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/*
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* Types of memory to be allocated.
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*/
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#define M_FREE 0 /* should be on free list */
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#define M_MBUF 1 /* mbuf */
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#define M_CLUSTER 2 /* mbuf cluster page */
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#define M_SOCKET 3 /* socket structure */
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#define M_PCB 4 /* protocol control block */
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#define M_RTABLE 5 /* routing tables */
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#define M_FTABLE 6 /* fragment reassembly header */
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#define M_IFADDR 7 /* interface address */
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#define M_SOOPTS 8 /* socket options */
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#define M_SONAME 9 /* socket name */
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#define M_MBLK 10 /* mblk */
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#define M_MBDATA 11 /* mblk data */
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#define M_STRHEAD 12 /* Stream head */
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#define M_STRQUEUE 13 /* Streams queue pair */
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#define M_STRQBAND 14 /* Streams queue band */
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#define M_STRMODSW 15 /* Streams modsw */
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#define M_STRSIGS 16 /* Streams setsig */
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#define M_STRPOLLS 17 /* Streams poll */
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#define M_STROSR 18 /* Streams osr */
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#define M_STRSQ 19 /* Streams synch queue */
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#define M_STREAMS 20 /* misc Streams memory */
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#define M_IOV 21 /* large iov's */
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#define M_FHANDLE 22 /* network file handle */
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#define M_NFSREQ 23 /* NFS request header */
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#define M_NFSMNT 24 /* NFS mount structure */
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#define M_FILE 25 /* file struct */
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#define M_FILEDESC 26 /* filedesc struct */
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#define M_IOCTLOPS 27 /* ioctl data */
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#define M_SELPOLL 28 /* select/poll arrays */
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#define M_DEVBUF 29 /* device driver memory */
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#define M_PATHNAME 30 /* pathname */
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#define M_KTABLE 31 /* kernel table */
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#define M_MOUNT 32 /* vfs mount struct */
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#define M_SUPERBLK 33 /* super block data */
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#define M_UFSMNT 34 /* UFS mount structure */
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#define M_S5MNT 35 /* S5FS mount structure */
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#define M_S5SUPERBLK 36 /* S5FS super block data */
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#define M_VNODE 37 /* dynamically allocated vnodes */
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#define M_SPECINFO 38 /* special file information */
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#define M_SPECALIAS 39 /* special file alias */
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#define M_SPECBUF 40 /* special file buffer */
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#define M_LOCKF 41 /* byte-range locking structures */
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#define M_DEVSW 42 /* device switch tables */
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/* Available */
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#define M_KALLOC 48 /* kalloc - obsolescent */
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#define M_TEMP 49 /* misc temporary data buffers */
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#define M_LAST 50
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#define KMEMNAMSZ 12
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#define INITKMEMNAMES { \
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"free", /* 0 M_FREE */ \
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"mbuf", /* 1 M_MBUF */ \
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"mcluster", /* 2 M_CLUSTER */ \
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"socket", /* 3 M_SOCKET */ \
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"pcb", /* 4 M_PCB */ \
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"routetbl", /* 5 M_RTABLE */ \
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"fragtbl", /* 6 M_FTABLE */ \
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"ifaddr", /* 7 M_IFADDR */ \
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"soopts", /* 8 M_SOOPTS */ \
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"soname", /* 9 M_SONAME */ \
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"mblk", /* 10 M_MBLK */ \
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"mblkdata", /* 11 M_MBDATA */ \
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"strhead", /* 12 M_STRHEAD */ \
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"strqueue", /* 13 M_STRQUEUE */ \
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"strqband", /* 14 M_STRQBAND */ \
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"strmodsw", /* 15 M_STRMODSW */ \
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"strsigs", /* 16 M_STRSIGS */ \
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"strpoll", /* 17 M_STRPOLLS */ \
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"strosr", /* 18 M_STROSR */ \
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"strsyncq", /* 19 M_STRSQ */ \
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"streams", /* 20 M_STREAMS */ \
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"iov", /* 21 M_IOV */ \
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"fhandle", /* 22 M_FHANDLE */ \
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"NFS req", /* 23 M_NFSREQ */ \
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"NFS mount", /* 24 M_NFSMNT */ \
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"file", /* 25 M_FILE */ \
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"file desc", /* 26 M_FILEDESC */ \
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"ioctlops", /* 27 M_IOCTLOPS */ \
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"select/poll", /* 28 M_SELPOLL */ \
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"devbuf", /* 29 M_DEVBUF */ \
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"pathname", /* 30 M_PATHNAME */ \
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"kernel table", /* 31 M_KTABLE */ \
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"mount", /* 32 M_MOUNT */ \
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"superblock", /* 33 M_SUPERBLK */ \
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"UFS mount", /* 34 M_UFSMNT */ \
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"S5FS mount", /* 35 M_S5MNT */ \
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"S5FS superbk", /* 36 M_S5SUPERBLK */ \
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"vnode", /* 37 M_VNODE */ \
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"spec info", /* 38 M_SPECINFO */ \
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"spec alias", /* 39 M_SPECALIAS */ \
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"spec buf", /* 40 M_SPECBUF */ \
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"locking", /* 41 M_LOCKF */ \
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"devsw", /* 42 M_DEVSW */ \
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"", "", "", "", "", \
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"kalloc", /* 48 M_KALLOC */ \
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"temp", /* 49 M_TEMP */ \
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}
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#ifdef _KERNEL
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#ifdef _AIX_FULLOSF
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#include <kern/lock.h>
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#else
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#include <sys/param.h>
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#endif
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#endif
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#define MINBUCKET 5 /* param.h in osf */
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struct kmemstats {
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long ks_inuse; /* # of packets of this type currently in use */
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long ks_calls; /* total packets of this type ever allocated */
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long ks_memuse; /* total memory held in bytes */
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long ks_limblocks; /* number of times blocked for hitting limit */
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long ks_mapblocks; /* number of times blocked for kernel map */
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long ks_maxused; /* maximum number ever used */
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long ks_limit; /* most that are allowed to exist */
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long ks_failed; /* total failed allocations */
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#ifdef _KERNEL
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simple_lock_data_t ks_lock;
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#endif
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};
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/*
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* Array of descriptors that describe the contents of each page
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*/
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struct kmemusage {
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short ku_indx; /* bucket index */
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union {
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u_short freecnt;/* for small allocations, free pieces in page */
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u_short pagecnt;/* for large allocations, pages alloced */
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} ku_un;
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int ku_cpu; /* Indicates which bucket array to free on */
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};
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#define ku_freecnt ku_un.freecnt
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#define ku_pagecnt ku_un.pagecnt
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/*
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* Set of buckets for each size of memory block that is retained
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*/
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struct kmembuckets {
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void * kb_next; /* list of free blocks */
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long kb_calls; /* total calls to allocate this size */
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long kb_total; /* total number of blocks allocated */
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long kb_totalfree; /* # of free elements in this bucket */
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long kb_elmpercl; /* # of elements in this sized allocation */
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long kb_highwat; /* high water mark */
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long kb_couldfree; /* over high water mark and could free */
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long kb_failed; /* total failed allocations */
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#ifdef _KERNEL
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simple_lock_data_t kb_lock;
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#endif
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};
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#ifdef _KERNEL
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#define MINALLOCSIZE (1 << MINBUCKET)
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#define BUCKETINDX(size) \
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( (size) == 256 ? (MINBUCKET + 3) \
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: (size) == 4096 ? (MINBUCKET + 7) \
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: (size) <= (MINALLOCSIZE * 128) \
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? (size) <= (MINALLOCSIZE * 8) \
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? (size) <= (MINALLOCSIZE * 2) \
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? (size) <= (MINALLOCSIZE * 1) \
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? (MINBUCKET + 0) \
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: (MINBUCKET + 1) \
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: (size) <= (MINALLOCSIZE * 4) \
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? (MINBUCKET + 2) \
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: (MINBUCKET + 3) \
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: (size) <= (MINALLOCSIZE* 32) \
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? (size) <= (MINALLOCSIZE * 16) \
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? (MINBUCKET + 4) \
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: (MINBUCKET + 5) \
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: (size) <= (MINALLOCSIZE * 64) \
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? (MINBUCKET + 6) \
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: (MINBUCKET + 7) \
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: (size) <= (MINALLOCSIZE * 2048) \
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? (size) <= (MINALLOCSIZE * 512) \
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? (size) <= (MINALLOCSIZE * 256) \
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? (MINBUCKET + 8) \
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: (MINBUCKET + 9) \
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: (size) <= (MINALLOCSIZE * 1024) \
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? (MINBUCKET + 10) \
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: (MINBUCKET + 11) \
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: (size) <= (MINALLOCSIZE * 8192) \
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? (size) <= (MINALLOCSIZE * 4096) \
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? (MINBUCKET + 12) \
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: (MINBUCKET + 13) \
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: (size) <= (MINALLOCSIZE * 16384) \
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? (MINBUCKET + 14) \
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: (MINBUCKET + 15) )
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/*
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* Turn virtual addresses into kmem map indicies
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*/
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#define btokup(addr) (&kmemusage[((char *)(addr) - (char *)kmembase) / PAGE_SIZE])
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/*
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* Macro versions for the usual cases of malloc/free
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* See malloc source for discussion of operation if !KMEMSTATS.
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*/
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#ifdef KMEMSTATS
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#define MALLOC(space, cast, size, type, flags) \
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(space) = (cast)net_malloc((u_long)(size), type, flags)
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#define FREE(addr, type) net_free((void *)(addr), type)
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extern struct kmemstats kmemstats[M_LAST];
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extern const char kmemnames[M_LAST][KMEMNAMSZ];
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#else /* do not collect statistics or garbage collect */
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#define MALLOC(space, cast, size, type, flags) { \
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register struct kmembuckets *kbp = &bucket[BUCKETINDX(size)]; \
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int s = splhigh(); \
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simple_lock(&kbp->kb_lock); \
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if (kbp->kb_next == NULL) { \
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simple_unlock(&kbp->kb_lock); \
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splx(s); \
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(space) = (cast)net_malloc((u_long)(size), type, flags); \
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} else { \
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(space) = (cast)kbp->kb_next; \
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kbp->kb_next = *(void **)(space); \
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simple_unlock(&kbp->kb_lock); \
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splx(s); \
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} \
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}
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#define FREE(addr, type) { \
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register struct kmembuckets *kbp; \
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register struct kmemusage *kup = btokup(addr); \
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if (1 << kup->ku_indx > MAXALLOCSAVE) \
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free((void *)(addr), type); \
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else { \
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int s = splhigh(); \
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simple_lock(&kbp->kb_lock); \
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kbp = &bucket[kup->ku_indx]; \
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*(void **)(addr) = kbp->kb_next; \
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kbp->kb_next = (void *)(addr); \
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simple_unlock(&kbp->kb_lock); \
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splx(s); \
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} \
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}
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#endif /* do not collect statistics or garbage collect */
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extern void *kmembase;
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extern struct kmemusage *kmemusage;
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extern struct kmembuckets bucket[][MINBUCKET + 16];
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extern void *net_malloc(u_long, int, int);
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extern void net_free(void *, int);
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extern int kmemsetlimit(int, long);
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extern void kmeminit(void);
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extern void kmeminit_thread(int);
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#define NET_MALLOC(p,c,s,t,f) MALLOC(p,c,s,t,f)
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#define NET_FREE(p,t) FREE(p,t)
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#endif /* _KERNEL */
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#endif /* _NET_NET_MALLOC */
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