2 * Copyright (c) 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2004 The DragonFly Project. All rights reserved.
5 * This code is derived from software contributed to The DragonFly Project
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
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35 * Copyright (c) 1980, 1986, 1989, 1993
36 * The Regents of the University of California. All rights reserved.
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39 * modification, are permitted provided that the following conditions
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66 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
67 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $
70 #ifndef _NET_NETISR_H_
71 #define _NET_NETISR_H_
74 * The networking code runs off software interrupts.
76 * You can switch into the network by doing splnet() and return by splx().
77 * The software interrupt level for the network is higher than the software
78 * level for the clock (so you can enter the network in routines called
83 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
84 * word which is used to de-multiplex a single software
85 * interrupt used for scheduling the network code to calls
86 * on the lowest level routine of each protocol.
88 #define NETISR_RESERVED0 0 /* cannot be used */
89 #define NETISR_IP 2 /* same as AF_INET */
90 #define NETISR_NS 6 /* same as AF_NS */
91 #define NETISR_ARP 18 /* same as AF_LINK */
92 #define NETISR_MPLS 21 /* MPLS */
93 #define NETISR_IPX 23 /* same as AF_IPX */
94 #define NETISR_USB 25 /* USB soft interrupt */
95 #define NETISR_PPP 27 /* PPP soft interrupt */
96 #define NETISR_IPV6 28 /* same as AF_INET6 */
97 #define NETISR_NATM 29 /* same as AF_NATM */
98 #define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */
99 #define NETISR_BLUETOOTH 31
101 #define NETISR_MAX 32
103 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
105 #ifndef _SYS_TYPES_H_
106 #include <sys/types.h>
108 #ifndef _SYS_QUEUE_H_
109 #include <sys/queue.h>
111 #ifndef _SYS_PROTOSW_H_
112 #include <sys/protosw.h>
114 #ifndef _SYS_MSGPORT_H_
115 #include <sys/msgport.h>
117 #ifndef _NET_NETMSG_H_
118 #include <net/netmsg.h>
125 void netmsg_so_notify(netmsg_t);
126 void netmsg_so_notify_abort(netmsg_t);
127 void netmsg_so_notify_doabort(lwkt_msg_t);
131 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES)
134 * Temporary pktinfo structure passed directly from the driver to
135 * ether_input_pkt(), allows us to bypass numerous checks.
138 int pi_netisr; /* netisr index, e.g. NETISR_IP */
139 uint32_t pi_flags; /* PKTINFO_FLAG_ */
140 int pi_l3proto; /* layer3 protocol number */
143 #define PKTINFO_FLAG_FRAG 0x1
146 * NETISR_xxx registrations
149 netisr_fn_t ni_handler; /* packet handler function */
150 netisr_hashck_t ni_hashck; /* hash check function */
151 netisr_hashfn_t ni_hashfn; /* characterize pkt return hash */
152 struct netmsg_base ni_netmsg; /* for sched_netisr() (no-data) */
159 #define NETISR_ROLLUP_PRIO_TCP 200
160 #define NETISR_ROLLUP_PRIO_IFSTART 50
162 extern lwkt_port netisr_adone_rport;
163 extern lwkt_port netisr_afree_rport;
164 extern lwkt_port netisr_afree_free_so_rport;
165 extern lwkt_port netisr_apanic_rport;
166 extern lwkt_port netisr_sync_port;
168 void netisr_register(int, netisr_fn_t, netisr_hashfn_t);
169 void netisr_register_hashcheck(int, netisr_hashck_t);
170 void netisr_register_rollup(netisr_ru_t ru_func, int ru_prio);
172 void netisr_characterize(int num, struct mbuf **mp, int hoff);
173 void netisr_hashcheck(int num, struct mbuf *m,
174 const struct pktinfo *pi);
175 int netisr_queue(int, struct mbuf *);
176 int netisr_handle(int, struct mbuf *);
178 struct netisr_barrier *netisr_barrier_create(void);
179 void netisr_barrier_set(struct netisr_barrier *);
180 void netisr_barrier_rem(struct netisr_barrier *);
182 void netmsg_service_port_init(lwkt_port_t);
183 void netmsg_service_sync(void);
184 void netmsg_sync_handler(netmsg_t);
185 void schednetisr(int);
189 #endif /* _NET_NETISR_H_ */