| uipc_mbuf.c (77572) | uipc_mbuf.c (77843) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1988, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)uipc_mbuf.c 8.2 (Berkeley) 1/4/94 | 1/* 2 * Copyright (c) 1982, 1986, 1988, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)uipc_mbuf.c 8.2 (Berkeley) 1/4/94 |
| 34 * $FreeBSD: head/sys/kern/uipc_mbuf.c 77572 2001-06-01 09:51:14Z obrien $ | 34 * $FreeBSD: head/sys/kern/uipc_mbuf.c 77843 2001-06-06 22:17:08Z peter $ |
| 35 */ 36 37#include "opt_param.h" 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/condvar.h> 41#include <sys/kernel.h> 42#include <sys/lock.h> 43#include <sys/malloc.h> 44#include <sys/mbuf.h> 45#include <sys/mutex.h> 46#include <sys/sysctl.h> 47#include <sys/domain.h> 48#include <sys/protosw.h> 49 50#include <vm/vm.h> 51#include <vm/vm_kern.h> 52#include <vm/vm_extern.h> 53 | 35 */ 36 37#include "opt_param.h" 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/condvar.h> 41#include <sys/kernel.h> 42#include <sys/lock.h> 43#include <sys/malloc.h> 44#include <sys/mbuf.h> 45#include <sys/mutex.h> 46#include <sys/sysctl.h> 47#include <sys/domain.h> 48#include <sys/protosw.h> 49 50#include <vm/vm.h> 51#include <vm/vm_kern.h> 52#include <vm/vm_extern.h> 53 |
| 54#ifndef NMBCLUSTERS 55#define NMBCLUSTERS (512 + MAXUSERS * 16) 56#endif 57 |
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| 54static void mbinit(void *); 55SYSINIT(mbuf, SI_SUB_MBUF, SI_ORDER_FIRST, mbinit, NULL) 56 57struct mbuf *mbutl; 58struct mbstat mbstat; 59u_long mbtypes[MT_NTYPES]; 60int max_linkhdr; 61int max_protohdr; 62int max_hdr; 63int max_datalen; | 58static void mbinit(void *); 59SYSINIT(mbuf, SI_SUB_MBUF, SI_ORDER_FIRST, mbinit, NULL) 60 61struct mbuf *mbutl; 62struct mbstat mbstat; 63u_long mbtypes[MT_NTYPES]; 64int max_linkhdr; 65int max_protohdr; 66int max_hdr; 67int max_datalen; |
| 64int nmbclusters; 65int nmbufs; | 68int nmbclusters = NMBCLUSTERS; 69int nmbufs = NMBCLUSTERS * 4; |
| 66int nmbcnt; 67u_long m_mballoc_wid = 0; 68u_long m_clalloc_wid = 0; 69 70/* 71 * freelist header structures... 72 * mbffree_lst, mclfree_lst, mcntfree_lst 73 */ --- 20 unchanged lines hidden (view full) --- 94 sizeof(mbtypes), "LU", ""); 95SYSCTL_INT(_kern_ipc, KIPC_NMBCLUSTERS, nmbclusters, CTLFLAG_RD, 96 &nmbclusters, 0, "Maximum number of mbuf clusters available"); 97SYSCTL_INT(_kern_ipc, OID_AUTO, nmbufs, CTLFLAG_RD, &nmbufs, 0, 98 "Maximum number of mbufs available"); 99SYSCTL_INT(_kern_ipc, OID_AUTO, nmbcnt, CTLFLAG_RD, &nmbcnt, 0, 100 "Maximum number of ext_buf counters available"); 101 | 70int nmbcnt; 71u_long m_mballoc_wid = 0; 72u_long m_clalloc_wid = 0; 73 74/* 75 * freelist header structures... 76 * mbffree_lst, mclfree_lst, mcntfree_lst 77 */ --- 20 unchanged lines hidden (view full) --- 98 sizeof(mbtypes), "LU", ""); 99SYSCTL_INT(_kern_ipc, KIPC_NMBCLUSTERS, nmbclusters, CTLFLAG_RD, 100 &nmbclusters, 0, "Maximum number of mbuf clusters available"); 101SYSCTL_INT(_kern_ipc, OID_AUTO, nmbufs, CTLFLAG_RD, &nmbufs, 0, 102 "Maximum number of mbufs available"); 103SYSCTL_INT(_kern_ipc, OID_AUTO, nmbcnt, CTLFLAG_RD, &nmbcnt, 0, 104 "Maximum number of ext_buf counters available"); 105 |
| 102#ifndef NMBCLUSTERS 103#define NMBCLUSTERS (512 + MAXUSERS * 16) 104#endif | 106TUNABLE_INT("kern.ipc.nmbclusters", &nmbclusters); 107TUNABLE_INT("kern.ipc.nmbufs", &nmbufs); 108TUNABLE_INT("kern.ipc.nmbcnt", &nmbcnt); |
| 105 | 109 |
| 106TUNABLE_INT_DECL("kern.ipc.nmbclusters", NMBCLUSTERS, nmbclusters); 107TUNABLE_INT_DECL("kern.ipc.nmbufs", NMBCLUSTERS * 4, nmbufs); 108TUNABLE_INT_DECL("kern.ipc.nmbcnt", EXT_COUNTERS, nmbcnt); 109 | |
| 110static void m_reclaim(void); 111 112/* Initial allocation numbers */ 113#define NCL_INIT 2 114#define NMB_INIT 16 115#define REF_INIT NMBCLUSTERS 116 117/* 118 * Full mbuf subsystem initialization done here. 119 * 120 * XXX: If ever we have system specific map setups to do, then move them to 121 * machdep.c - for now, there is no reason for this stuff to go there. 122 */ 123static void 124mbinit(void *dummy) 125{ 126 vm_offset_t maxaddr; 127 vm_size_t mb_map_size; 128 | 110static void m_reclaim(void); 111 112/* Initial allocation numbers */ 113#define NCL_INIT 2 114#define NMB_INIT 16 115#define REF_INIT NMBCLUSTERS 116 117/* 118 * Full mbuf subsystem initialization done here. 119 * 120 * XXX: If ever we have system specific map setups to do, then move them to 121 * machdep.c - for now, there is no reason for this stuff to go there. 122 */ 123static void 124mbinit(void *dummy) 125{ 126 vm_offset_t maxaddr; 127 vm_size_t mb_map_size; 128 |
| 129 /* Sanity checks and pre-initialization for non-constants */ 130 if (nmbufs < nmbclusters * 2) 131 nmbufs = nmbclusters * 2; 132 if (nmbcnt == 0) 133 nmbcnt = EXT_COUNTERS; 134 |
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| 129 /* 130 * Setup the mb_map, allocate requested VM space. 131 */ 132 mb_map_size = (vm_size_t)(nmbufs * MSIZE + nmbclusters * MCLBYTES + 133 nmbcnt * sizeof(union mext_refcnt)); 134 mb_map_size = rounddown(mb_map_size, PAGE_SIZE); 135 mb_map = kmem_suballoc(kmem_map, (vm_offset_t *)&mbutl, &maxaddr, 136 mb_map_size); --- 1068 unchanged lines hidden --- | 135 /* 136 * Setup the mb_map, allocate requested VM space. 137 */ 138 mb_map_size = (vm_size_t)(nmbufs * MSIZE + nmbclusters * MCLBYTES + 139 nmbcnt * sizeof(union mext_refcnt)); 140 mb_map_size = rounddown(mb_map_size, PAGE_SIZE); 141 mb_map = kmem_suballoc(kmem_map, (vm_offset_t *)&mbutl, &maxaddr, 142 mb_map_size); --- 1068 unchanged lines hidden --- |