| kern_mbuf.c (155780) | kern_mbuf.c (156023) |
|---|---|
| 1/*- 2 * Copyright (c) 2004, 2005, 3 * Bosko Milekic <bmilekic@FreeBSD.org>. 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 --- 12 unchanged lines hidden (view full) --- 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2004, 2005, 3 * Bosko Milekic <bmilekic@FreeBSD.org>. 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 --- 12 unchanged lines hidden (view full) --- 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> |
| 29__FBSDID("$FreeBSD: head/sys/kern/kern_mbuf.c 155780 2006-02-17 14:14:15Z andre $"); | 29__FBSDID("$FreeBSD: head/sys/kern/kern_mbuf.c 156023 2006-02-26 11:44:28Z glebius $"); |
| 30 31#include "opt_mac.h" 32#include "opt_param.h" 33 34#include <sys/param.h> 35#include <sys/mac.h> 36#include <sys/malloc.h> 37#include <sys/systm.h> --- 31 unchanged lines hidden (view full) --- 69 * m_clget() m_getcl() 70 * | | 71 * | .------------>[(Packet Cache)] m_get(), m_gethdr() 72 * | | [ Packet ] | 73 * [(Cluster Cache)] [ Secondary ] [ (Mbuf Cache) ] 74 * [ Cluster Zone ] [ Zone ] [ Mbuf Master Zone ] 75 * | \________ | 76 * [ Cluster Keg ] \ / | 30 31#include "opt_mac.h" 32#include "opt_param.h" 33 34#include <sys/param.h> 35#include <sys/mac.h> 36#include <sys/malloc.h> 37#include <sys/systm.h> --- 31 unchanged lines hidden (view full) --- 69 * m_clget() m_getcl() 70 * | | 71 * | .------------>[(Packet Cache)] m_get(), m_gethdr() 72 * | | [ Packet ] | 73 * [(Cluster Cache)] [ Secondary ] [ (Mbuf Cache) ] 74 * [ Cluster Zone ] [ Zone ] [ Mbuf Master Zone ] 75 * | \________ | 76 * [ Cluster Keg ] \ / |
| 77 * | [ Mbuf Keg ] | 77 * | [ Mbuf Keg ] |
| 78 * [ Cluster Slabs ] | 79 * | [ Mbuf Slabs ] 80 * \____________(VM)_________________/ 81 * 82 * | 78 * [ Cluster Slabs ] | 79 * | [ Mbuf Slabs ] 80 * \____________(VM)_________________/ 81 * 82 * |
| 83 * Whenever a object is allocated with uma_zalloc() out of the | 83 * Whenever an object is allocated with uma_zalloc() out of |
| 84 * one of the Zones its _ctor_ function is executed. The same | 84 * one of the Zones its _ctor_ function is executed. The same |
| 85 * for any deallocation through uma_zfree() the _dror_ function | 85 * for any deallocation through uma_zfree() the _dtor_ function |
| 86 * is executed. | 86 * is executed. |
| 87 * | 87 * |
| 88 * Caches are per-CPU and are filled from the Master Zone. 89 * | 88 * Caches are per-CPU and are filled from the Master Zone. 89 * |
| 90 * Whenever a object is allocated from the underlying global | 90 * Whenever an object is allocated from the underlying global |
| 91 * memory pool it gets pre-initialized with the _zinit_ functions. 92 * When the Keg's are overfull objects get decomissioned with 93 * _zfini_ functions and free'd back to the global memory pool. 94 * 95 */ 96 97int nmbclusters; /* limits number of mbuf clusters */ 98int nmbjumbop; /* limits number of page size jumbo clusters */ --- 84 unchanged lines hidden (view full) --- 183#endif 184 UMA_ALIGN_PTR, UMA_ZONE_REFCNT); 185 if (nmbclusters > 0) 186 uma_zone_set_max(zone_clust, nmbclusters); 187 188 zone_pack = uma_zsecond_create(MBUF_PACKET_MEM_NAME, mb_ctor_pack, 189 mb_dtor_pack, mb_zinit_pack, mb_zfini_pack, zone_mbuf); 190 | 91 * memory pool it gets pre-initialized with the _zinit_ functions. 92 * When the Keg's are overfull objects get decomissioned with 93 * _zfini_ functions and free'd back to the global memory pool. 94 * 95 */ 96 97int nmbclusters; /* limits number of mbuf clusters */ 98int nmbjumbop; /* limits number of page size jumbo clusters */ --- 84 unchanged lines hidden (view full) --- 183#endif 184 UMA_ALIGN_PTR, UMA_ZONE_REFCNT); 185 if (nmbclusters > 0) 186 uma_zone_set_max(zone_clust, nmbclusters); 187 188 zone_pack = uma_zsecond_create(MBUF_PACKET_MEM_NAME, mb_ctor_pack, 189 mb_dtor_pack, mb_zinit_pack, mb_zfini_pack, zone_mbuf); 190 |
| 191 /* Make jumbo frame zone too. 4k, 9k and 16k. */ | 191 /* Make jumbo frame zone too. Page size, 9k and 16k. */ |
| 192 zone_jumbop = uma_zcreate(MBUF_JUMBOP_MEM_NAME, MJUMPAGESIZE, 193 mb_ctor_clust, mb_dtor_clust, 194#ifdef INVARIANTS 195 trash_init, trash_fini, 196#else 197 NULL, NULL, 198#endif 199 UMA_ALIGN_PTR, UMA_ZONE_REFCNT); --- 86 unchanged lines hidden (view full) --- 286#endif 287 m = (struct mbuf *)mem; 288 args = (struct mb_args *)arg; 289 flags = args->flags; 290 type = args->type; 291 292 /* 293 * The mbuf is initialized later. The caller has the | 192 zone_jumbop = uma_zcreate(MBUF_JUMBOP_MEM_NAME, MJUMPAGESIZE, 193 mb_ctor_clust, mb_dtor_clust, 194#ifdef INVARIANTS 195 trash_init, trash_fini, 196#else 197 NULL, NULL, 198#endif 199 UMA_ALIGN_PTR, UMA_ZONE_REFCNT); --- 86 unchanged lines hidden (view full) --- 286#endif 287 m = (struct mbuf *)mem; 288 args = (struct mb_args *)arg; 289 flags = args->flags; 290 type = args->type; 291 292 /* 293 * The mbuf is initialized later. The caller has the |
| 294 * responseability to setup any MAC labels too. | 294 * responsibility to setup any MAC labels too. |
| 295 */ 296 if (type == MT_NOINIT) 297 return (0); 298 299 m->m_next = NULL; 300 m->m_nextpkt = NULL; 301 m->m_len = 0; 302 m->m_flags = flags; --- 257 unchanged lines hidden --- | 295 */ 296 if (type == MT_NOINIT) 297 return (0); 298 299 m->m_next = NULL; 300 m->m_nextpkt = NULL; 301 m->m_len = 0; 302 m->m_flags = flags; --- 257 unchanged lines hidden --- |