| mbuf.h (295482) | mbuf.h (295547) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 14 unchanged lines hidden (view full) --- 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)mbuf.h 8.5 (Berkeley) 2/19/95 | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1993 3 * The Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: --- 14 unchanged lines hidden (view full) --- 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)mbuf.h 8.5 (Berkeley) 2/19/95 |
| 31 * $FreeBSD: head/sys/sys/mbuf.h 295482 2016-02-10 18:54:18Z glebius $ | 31 * $FreeBSD: head/sys/sys/mbuf.h 295547 2016-02-11 21:32:23Z glebius $ |
| 32 */ 33 34#ifndef _SYS_MBUF_H_ 35#define _SYS_MBUF_H_ 36 37/* XXX: These includes suck. Sorry! */ 38#include <sys/queue.h> 39#ifdef _KERNEL --- 483 unchanged lines hidden (view full) --- 523extern uma_zone_t zone_pack; 524extern uma_zone_t zone_jumbop; 525extern uma_zone_t zone_jumbo9; 526extern uma_zone_t zone_jumbo16; 527extern uma_zone_t zone_ext_refcnt; 528 529void mb_dupcl(struct mbuf *, const struct mbuf *); 530void mb_free_ext(struct mbuf *); | 32 */ 33 34#ifndef _SYS_MBUF_H_ 35#define _SYS_MBUF_H_ 36 37/* XXX: These includes suck. Sorry! */ 38#include <sys/queue.h> 39#ifdef _KERNEL --- 483 unchanged lines hidden (view full) --- 523extern uma_zone_t zone_pack; 524extern uma_zone_t zone_jumbop; 525extern uma_zone_t zone_jumbo9; 526extern uma_zone_t zone_jumbo16; 527extern uma_zone_t zone_ext_refcnt; 528 529void mb_dupcl(struct mbuf *, const struct mbuf *); 530void mb_free_ext(struct mbuf *); |
| 531void m_adj(struct mbuf *, int); 532int m_apply(struct mbuf *, int, int, 533 int (*)(void *, void *, u_int), void *); 534int m_append(struct mbuf *, int, c_caddr_t); 535void m_cat(struct mbuf *, struct mbuf *); 536void m_catpkt(struct mbuf *, struct mbuf *); 537int m_clget(struct mbuf *m, int how); 538void *m_cljget(struct mbuf *m, int how, int size); 539struct mbuf *m_collapse(struct mbuf *, int, int); 540void m_copyback(struct mbuf *, int, int, c_caddr_t); 541void m_copydata(const struct mbuf *, int, int, caddr_t); 542struct mbuf *m_copym(const struct mbuf *, int, int, int); 543struct mbuf *m_copypacket(struct mbuf *, int); 544void m_copy_pkthdr(struct mbuf *, struct mbuf *); 545struct mbuf *m_copyup(struct mbuf *, int, int); 546struct mbuf *m_defrag(struct mbuf *, int); 547void m_demote_pkthdr(struct mbuf *); 548void m_demote(struct mbuf *, int, int); 549struct mbuf *m_devget(char *, int, int, struct ifnet *, 550 void (*)(char *, caddr_t, u_int)); 551struct mbuf *m_dup(const struct mbuf *, int); 552int m_dup_pkthdr(struct mbuf *, const struct mbuf *, int); 553int m_extadd(struct mbuf *, caddr_t, u_int, 554 void (*)(struct mbuf *, void *, void *), void *, void *, 555 int, int, int); 556u_int m_fixhdr(struct mbuf *); 557struct mbuf *m_fragment(struct mbuf *, int, int); 558void m_freem(struct mbuf *); 559struct mbuf *m_get2(int, int, short, int); 560struct mbuf *m_getjcl(int, short, int, int); 561struct mbuf *m_getm2(struct mbuf *, int, int, short, int); 562struct mbuf *m_getptr(struct mbuf *, int, int *); 563u_int m_length(struct mbuf *, struct mbuf **); 564int m_mbuftouio(struct uio *, struct mbuf *, int); 565void m_move_pkthdr(struct mbuf *, struct mbuf *); |
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| 531int m_pkthdr_init(struct mbuf *, int); | 566int m_pkthdr_init(struct mbuf *, int); |
| 567struct mbuf *m_prepend(struct mbuf *, int, int); 568void m_print(const struct mbuf *, int); 569struct mbuf *m_pulldown(struct mbuf *, int, int, int *); 570struct mbuf *m_pullup(struct mbuf *, int); 571int m_sanity(struct mbuf *, int); 572struct mbuf *m_split(struct mbuf *, int, int); 573struct mbuf *m_uiotombuf(struct uio *, int, int, int, int); 574struct mbuf *m_unshare(struct mbuf *, int); |
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| 532 533static __inline int 534m_gettype(int size) 535{ 536 int type; 537 538 switch (size) { 539 case MSIZE: --- 121 unchanged lines hidden (view full) --- 661{ 662 struct mb_args args; 663 664 args.flags = flags; 665 args.type = type; 666 return (uma_zalloc_arg(zone_pack, &args, how)); 667} 668 | 575 576static __inline int 577m_gettype(int size) 578{ 579 int type; 580 581 switch (size) { 582 case MSIZE: --- 121 unchanged lines hidden (view full) --- 704{ 705 struct mb_args args; 706 707 args.flags = flags; 708 args.type = type; 709 return (uma_zalloc_arg(zone_pack, &args, how)); 710} 711 |
| 669static __inline int 670m_clget(struct mbuf *m, int how) 671{ 672 673 KASSERT((m->m_flags & M_EXT) == 0, ("%s: mbuf %p has M_EXT", 674 __func__, m)); 675 m->m_ext.ext_buf = (char *)NULL; 676 uma_zalloc_arg(zone_clust, m, how); 677 /* 678 * On a cluster allocation failure, drain the packet zone and retry, 679 * we might be able to loosen a few clusters up on the drain. 680 */ 681 if ((how & M_NOWAIT) && (m->m_ext.ext_buf == NULL)) { 682 zone_drain(zone_pack); 683 uma_zalloc_arg(zone_clust, m, how); 684 } 685 return (m->m_flags & M_EXT); 686} 687 688/* 689 * m_cljget() is different from m_clget() as it can allocate clusters without 690 * attaching them to an mbuf. In that case the return value is the pointer 691 * to the cluster of the requested size. If an mbuf was specified, it gets 692 * the cluster attached to it and the return value can be safely ignored. 693 * For size it takes MCLBYTES, MJUMPAGESIZE, MJUM9BYTES, MJUM16BYTES. 694 */ 695static __inline void * 696m_cljget(struct mbuf *m, int how, int size) 697{ 698 uma_zone_t zone; 699 700 if (m != NULL) { 701 KASSERT((m->m_flags & M_EXT) == 0, ("%s: mbuf %p has M_EXT", 702 __func__, m)); 703 m->m_ext.ext_buf = NULL; 704 } 705 706 zone = m_getzone(size); 707 return (uma_zalloc_arg(zone, m, how)); 708} 709 | |
| 710static __inline void 711m_cljset(struct mbuf *m, void *cl, int type) 712{ 713 uma_zone_t zone; 714 int size; 715 716 switch (type) { 717 case EXT_CLUSTER: --- 201 unchanged lines hidden (view full) --- 919#define m_copy(m, o, l) m_copym((m), (o), (l), M_NOWAIT) 920 921extern int max_datalen; /* MHLEN - max_hdr */ 922extern int max_hdr; /* Largest link + protocol header */ 923extern int max_linkhdr; /* Largest link-level header */ 924extern int max_protohdr; /* Largest protocol header */ 925extern int nmbclusters; /* Maximum number of clusters */ 926 | 712static __inline void 713m_cljset(struct mbuf *m, void *cl, int type) 714{ 715 uma_zone_t zone; 716 int size; 717 718 switch (type) { 719 case EXT_CLUSTER: --- 201 unchanged lines hidden (view full) --- 921#define m_copy(m, o, l) m_copym((m), (o), (l), M_NOWAIT) 922 923extern int max_datalen; /* MHLEN - max_hdr */ 924extern int max_hdr; /* Largest link + protocol header */ 925extern int max_linkhdr; /* Largest link-level header */ 926extern int max_protohdr; /* Largest protocol header */ 927extern int nmbclusters; /* Maximum number of clusters */ 928 |
| 927struct uio; 928 929void m_adj(struct mbuf *, int); 930int m_apply(struct mbuf *, int, int, 931 int (*)(void *, void *, u_int), void *); 932int m_append(struct mbuf *, int, c_caddr_t); 933void m_cat(struct mbuf *, struct mbuf *); 934void m_catpkt(struct mbuf *, struct mbuf *); 935int m_extadd(struct mbuf *, caddr_t, u_int, 936 void (*)(struct mbuf *, void *, void *), void *, void *, 937 int, int, int); 938struct mbuf *m_collapse(struct mbuf *, int, int); 939void m_copyback(struct mbuf *, int, int, c_caddr_t); 940void m_copydata(const struct mbuf *, int, int, caddr_t); 941struct mbuf *m_copym(const struct mbuf *, int, int, int); 942struct mbuf *m_copypacket(struct mbuf *, int); 943void m_copy_pkthdr(struct mbuf *, struct mbuf *); 944struct mbuf *m_copyup(struct mbuf *, int, int); 945struct mbuf *m_defrag(struct mbuf *, int); 946void m_demote_pkthdr(struct mbuf *); 947void m_demote(struct mbuf *, int, int); 948struct mbuf *m_devget(char *, int, int, struct ifnet *, 949 void (*)(char *, caddr_t, u_int)); 950struct mbuf *m_dup(const struct mbuf *, int); 951int m_dup_pkthdr(struct mbuf *, const struct mbuf *, int); 952u_int m_fixhdr(struct mbuf *); 953struct mbuf *m_fragment(struct mbuf *, int, int); 954void m_freem(struct mbuf *); 955struct mbuf *m_get2(int, int, short, int); 956struct mbuf *m_getjcl(int, short, int, int); 957struct mbuf *m_getm2(struct mbuf *, int, int, short, int); 958struct mbuf *m_getptr(struct mbuf *, int, int *); 959u_int m_length(struct mbuf *, struct mbuf **); 960int m_mbuftouio(struct uio *, struct mbuf *, int); 961void m_move_pkthdr(struct mbuf *, struct mbuf *); 962struct mbuf *m_prepend(struct mbuf *, int, int); 963void m_print(const struct mbuf *, int); 964struct mbuf *m_pulldown(struct mbuf *, int, int, int *); 965struct mbuf *m_pullup(struct mbuf *, int); 966int m_sanity(struct mbuf *, int); 967struct mbuf *m_split(struct mbuf *, int, int); 968struct mbuf *m_uiotombuf(struct uio *, int, int, int, int); 969struct mbuf *m_unshare(struct mbuf *, int); 970 | |
| 971/*- 972 * Network packets may have annotations attached by affixing a list of 973 * "packet tags" to the pkthdr structure. Packet tags are dynamically 974 * allocated semi-opaque data structures that have a fixed header 975 * (struct m_tag) that specifies the size of the memory block and a 976 * <cookie,type> pair that identifies it. The cookie is a 32-bit unique 977 * unsigned value used to identify a module or ABI. By convention this value 978 * is chosen as the date+time that the module is created, expressed as the --- 317 unchanged lines hidden --- | 929/*- 930 * Network packets may have annotations attached by affixing a list of 931 * "packet tags" to the pkthdr structure. Packet tags are dynamically 932 * allocated semi-opaque data structures that have a fixed header 933 * (struct m_tag) that specifies the size of the memory block and a 934 * <cookie,type> pair that identifies it. The cookie is a 32-bit unique 935 * unsigned value used to identify a module or ABI. By convention this value 936 * is chosen as the date+time that the module is created, expressed as the --- 317 unchanged lines hidden --- |