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33 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
34 * $FreeBSD: src/sys/net/netisr.h,v 1.21.2.5 2002/02/09 23:02:39 luigi Exp $
35 * $DragonFly: src/sys/net/netisr.h,v 1.16 2004/04/21 18:13:51 dillon Exp $
38 #ifndef _NET_NETISR_H_
39 #define _NET_NETISR_H_
41 #include <sys/msgport.h>
44 * The networking code runs off software interrupts.
46 * You can switch into the network by doing splnet() and return by splx().
47 * The software interrupt level for the network is higher than the software
48 * level for the clock (so you can enter the network in routines called
53 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
54 * word which is used to de-multiplex a single software
55 * interrupt used for scheduling the network code to calls
56 * on the lowest level routine of each protocol.
58 #define NETISR_RESERVED0 0 /* cannot be used */
59 #define NETISR_POLL 1 /* polling callback */
60 #define NETISR_IP 2 /* same as AF_INET */
61 #define NETISR_NS 6 /* same as AF_NS */
62 #define NETISR_AARP 15 /* Appletalk ARP */
63 #define NETISR_ATALK2 16 /* Appletalk phase 2 */
64 #define NETISR_ATALK1 17 /* Appletalk phase 1 */
65 #define NETISR_ARP 18 /* same as AF_LINK */
66 #define NETISR_IPX 23 /* same as AF_IPX */
67 #define NETISR_USB 25 /* USB soft interrupt */
68 #define NETISR_PPP 27 /* PPP soft interrupt */
69 #define NETISR_IPV6 28 /* same as AF_INET6 */
70 #define NETISR_NATM 29 /* same as AF_NATM */
71 #define NETISR_NETGRAPH 30 /* same as AF_NETGRAPH */
72 #define NETISR_POLLMORE 31 /* check if we need more polling */
76 TAILQ_HEAD(notifymsglist, netmsg_so_notify);
80 #include <sys/protosw.h>
84 typedef int (*netisr_fn_t)(struct netmsg *);
85 typedef boolean_t (*msg_predicate_fn_t)(struct netmsg *);
88 * Base class. All net messages must start with the same fields.
91 struct lwkt_msg nm_lmsg;
94 struct netmsg_packet {
95 struct lwkt_msg nm_lmsg;
96 struct mbuf *nm_packet;
99 struct netmsg_pr_ctloutput {
100 struct lwkt_msg nm_lmsg;
101 int (*nm_prfn) (struct socket *, struct sockopt *);
102 struct socket *nm_so;
103 struct sockopt *nm_sopt;
106 struct netmsg_pr_timeout {
107 struct lwkt_msg nm_lmsg;
108 int (*nm_prfn) (void);
111 struct netmsg_so_notify {
112 struct lwkt_msg nm_lmsg;
113 msg_predicate_fn_t nm_predicate;
114 struct socket *nm_so;
115 int nm_etype; /* receive or send event */
116 TAILQ_ENTRY(netmsg_so_notify) nm_list;
119 #define NM_REVENT 0x1 /* event on receive buffer */
120 #define NM_SEVENT 0x2 /* event on send buffer */
123 * for dispatching pr_ functions,
124 * until they can be converted to message-passing
126 int netmsg_pru_abort(lwkt_msg_t);
127 int netmsg_pru_accept(lwkt_msg_t);
128 int netmsg_pru_attach(lwkt_msg_t);
129 int netmsg_pru_bind(lwkt_msg_t);
130 int netmsg_pru_connect(lwkt_msg_t);
131 int netmsg_pru_connect2(lwkt_msg_t);
132 int netmsg_pru_control(lwkt_msg_t);
133 int netmsg_pru_detach(lwkt_msg_t);
134 int netmsg_pru_disconnect(lwkt_msg_t);
135 int netmsg_pru_listen(lwkt_msg_t);
136 int netmsg_pru_peeraddr(lwkt_msg_t);
137 int netmsg_pru_rcvd(lwkt_msg_t);
138 int netmsg_pru_rcvoob(lwkt_msg_t);
139 int netmsg_pru_send(lwkt_msg_t);
140 int netmsg_pru_sense(lwkt_msg_t);
141 int netmsg_pru_shutdown(lwkt_msg_t);
142 int netmsg_pru_sockaddr(lwkt_msg_t);
144 int netmsg_pru_sopoll(lwkt_msg_t);
146 int netmsg_pr_ctloutput(lwkt_msg_t);
147 int netmsg_pr_timeout(lwkt_msg_t);
149 int netmsg_so_notify(lwkt_msg_t);
150 int netmsg_so_notify_abort(lwkt_msg_t);
152 typedef lwkt_port_t (*lwkt_portfn_t)(struct mbuf *);
155 lwkt_port ni_port; /* must be first */
156 lwkt_portfn_t ni_mport;
157 netisr_fn_t ni_handler;
160 extern lwkt_port netisr_afree_rport;
162 lwkt_port_t cpu0_portfn(struct mbuf *m);
163 void netisr_dispatch(int, struct mbuf *);
164 int netisr_queue(int, struct mbuf *);
165 void netisr_register(int, lwkt_portfn_t, netisr_fn_t);
166 int netisr_unregister(int);
167 void netmsg_service_loop(void *arg);
168 void schednetisr(int);
172 #endif /* _NET_NETISR_H_ */