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29 * @(#)netisr.h 8.1 (Berkeley) 6/10/93
33 #ifndef _NET_NETISR_H_
34 #define _NET_NETISR_H_
37 * The networking code runs off software interrupts.
39 * You can switch into the network by doing splnet() and return by splx().
40 * The software interrupt level for the network is higher than the software
41 * level for the clock (so you can enter the network in routines called
46 * Each ``pup-level-1'' input queue has a bit in a ``netisr'' status
47 * word which is used to de-multiplex a single software
48 * interrupt used for scheduling the network code to calls
49 * on the lowest level routine of each protocol.
51 #define NETISR_POLL 0 /* polling callback, must be first */
52 #define NETISR_IP 2 /* same as AF_INET */
53 #define NETISR_ROUTE 14 /* routing socket */
54 #define NETISR_AARP 15 /* Appletalk ARP */
55 #define NETISR_ATALK2 16 /* Appletalk phase 2 */
56 #define NETISR_ATALK1 17 /* Appletalk phase 1 */
57 #define NETISR_ARP 18 /* same as AF_LINK */
58 #define NETISR_IPX 23 /* same as AF_IPX */
59 #define NETISR_USB 25 /* USB soft interrupt */
60 #define NETISR_PPP 26 /* PPP soft interrupt */
61 #define NETISR_IPV6 27
62 #define NETISR_NATM 28
64 #define NETISR_NETGRAPH 30
65 #define NETISR_POLLMORE 31 /* polling callback, must be last */
71 void legacy_setsoftnet(void);
73 extern volatile unsigned int netisr; /* scheduling bits for network */
74 #define schednetisr(anisr) do { \
75 atomic_set_rel_int(&netisr, 1 << (anisr)); \
76 legacy_setsoftnet(); \
78 /* used to atomically schedule multiple netisrs */
79 #define schednetisrbits(isrbits) do { \
80 atomic_set_rel_int(&netisr, isrbits); \
81 legacy_setsoftnet(); \
87 typedef void netisr_t (struct mbuf *);
89 void netisr_dispatch(int, struct mbuf *);
90 int netisr_queue(int, struct mbuf *);
91 #define NETISR_MPSAFE 0x0001 /* ISR does not need Giant */
92 void netisr_register(int, netisr_t *, struct ifqueue *, int);
93 void netisr_unregister(int);