1/* $NetBSD: netisr.c,v 1.10 2016/01/26 23:12:18 pooka Exp $ */
2
3/*
4 * Copyright (c) 2008 Antti Kantee. 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:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * 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__KERNEL_RCSID(0, "$NetBSD: netisr.c,v 1.10 2016/01/26 23:12:18 pooka Exp $");
30
31#include <sys/param.h>
32#include <sys/intr.h>
33
34#include <net/netisr.h>
35
36#include <rump-sys/net.h>
37
38#include <rump/rumpuser.h>
39
40static void *netisrs[NETISR_MAX];
41
42void
43schednetisr(int isr)
44{
45 KASSERT(isr != NETISR_IP);
46 KASSERT(isr != NETISR_IPV6);
47
48 /*
49 * Do not schedule a softint that is not registered.
50 * This might cause the inq to fill, but the one calling us
51 * should start dropping packets once the inq is full,
52 * so no big harm done.
53 */
54 if (__predict_true(netisrs[isr]))
55 softint_schedule(netisrs[isr]);
56}
57
58void
59rump_netisr_register(int level, void (*handler)(void))
60{
61 KASSERT(level != NETISR_IP);
62 KASSERT(level != NETISR_IPV6);
63
64 netisrs[level] = softint_establish(SOFTINT_NET | SOFTINT_MPSAFE,
65 (void (*)(void *))handler, NULL);
66}
67