7902224c6b
whether or not the isr needs to hold Giant when running; Giant-less operation is also controlled by the setting of debug_mpsafenet o mark all netisr's except NETISR_IP as needing Giant o add a GIANT_REQUIRED assertion to the top of netisr's that need Giant o pickup Giant (when debug_mpsafenet is 1) inside ip_input before calling up with a packet o change netisr handling so swi_net runs w/o Giant; instead we grab Giant before invoking handlers based on whether the handler needs Giant o change netisr handling so that netisr's that are marked MPSAFE may have multiple instances active at a time o add netisr statistics for packets dropped because the isr is inactive Supported by: FreeBSD Foundation
131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/* $NetBSD: natm_proto.c,v 1.3 1996/09/18 00:56:41 chuck Exp $ */
|
|
/*
|
|
*
|
|
* Copyright (c) 1996 Charles D. Cranor and Washington University.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by Charles D. Cranor and
|
|
* Washington University.
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
* protocol layer for access to native mode ATM
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/protosw.h>
|
|
#include <sys/domain.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/netisr.h>
|
|
|
|
#include <netinet/in.h>
|
|
|
|
#include <netnatm/natm.h>
|
|
|
|
extern struct domain natmdomain;
|
|
|
|
static void natm_init(void);
|
|
|
|
static struct protosw natmsw[] = {
|
|
{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL5, PR_CONNREQUIRED,
|
|
0, 0, 0, 0,
|
|
#ifdef FREEBSD_USRREQS
|
|
0,
|
|
#else
|
|
natm_usrreq,
|
|
#endif
|
|
0, 0, 0, 0,
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
natm5_sysctl
|
|
#elif defined(FREEBSD_USRREQS)
|
|
&natm_usrreqs
|
|
#endif
|
|
},
|
|
{ SOCK_DGRAM, &natmdomain, PROTO_NATMAAL5, PR_CONNREQUIRED | PR_ATOMIC,
|
|
0, 0, 0, 0,
|
|
#ifdef FREEBSD_USRREQS
|
|
0,
|
|
#else
|
|
natm_usrreq,
|
|
#endif
|
|
0, 0, 0, 0,
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
natm5_sysctl
|
|
#elif defined(FREEBSD_USRREQS)
|
|
&natm_usrreqs
|
|
#endif
|
|
},
|
|
{ SOCK_STREAM, &natmdomain, PROTO_NATMAAL0, PR_CONNREQUIRED,
|
|
0, 0, 0, 0,
|
|
#ifdef FREEBSD_USRREQS
|
|
0,
|
|
#else
|
|
natm_usrreq,
|
|
#endif
|
|
0, 0, 0, 0,
|
|
#if defined(__NetBSD__) || defined(__OpenBSD__)
|
|
natm0_sysctl
|
|
#elif defined(FREEBSD_USRREQS)
|
|
&natm_usrreqs
|
|
#endif
|
|
},
|
|
};
|
|
|
|
static struct domain natmdomain =
|
|
{ AF_NATM, "natm", natm_init, 0, 0,
|
|
natmsw, &natmsw[sizeof(natmsw)/sizeof(natmsw[0])], 0,
|
|
0, 0, 0};
|
|
|
|
static int natmqmaxlen = 1000 /* IFQ_MAXLEN */; /* max # of packets on queue */
|
|
static struct ifqueue natmintrq;
|
|
#ifdef NATM_STAT
|
|
u_int natm_sodropcnt; /* # mbufs dropped due to full sb */
|
|
u_int natm_sodropbytes; /* # of bytes dropped */
|
|
u_int natm_sookcnt; /* # mbufs ok */
|
|
u_int natm_sookbytes; /* # of bytes ok */
|
|
#endif
|
|
|
|
static void
|
|
natm_init(void)
|
|
{
|
|
LIST_INIT(&natm_pcbs);
|
|
bzero(&natmintrq, sizeof(natmintrq));
|
|
natmintrq.ifq_maxlen = natmqmaxlen;
|
|
mtx_init(&natmintrq.ifq_mtx, "natm_inq", NULL, MTX_DEF);
|
|
netisr_register(NETISR_NATM, natmintr, &natmintrq, 0);
|
|
}
|
|
|
|
#if defined(__FreeBSD__)
|
|
DOMAIN_SET(natm);
|
|
#endif
|