Use queue(3) macros for if_multiaddrs.
[dragonfly.git] / sys / dev / netif / pdq_layer / pdq_ifsubr.c
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1/*-
2 * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. The name of the author may not be used to endorse or promote products
11 * derived from this software withough specific prior written permission
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 *
24 * $FreeBSD: src/sys/dev/pdq/pdq_ifsubr.c,v 1.11.2.1 2000/08/02 22:39:30 peter Exp $
03df8a20 25 * $DragonFly: src/sys/dev/netif/pdq_layer/Attic/pdq_ifsubr.c,v 1.13 2005/06/20 15:10:41 joerg Exp $
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26 *
27 */
28
29/*
30 * DEC PDQ FDDI Controller; code for BSD derived operating systems
31 *
32 * This module provide bus independent BSD specific O/S functions.
33 * (ie. it provides an ifnet interface to the rest of the system)
34 */
35
36
37#include "opt_inet.h"
38
39#include <sys/param.h>
40#include <sys/socket.h>
41#include <sys/sockio.h>
07292c0a 42#include <sys/thread2.h>
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43#if defined(__bsdi__) || defined(__NetBSD__)
44#include <sys/device.h>
45#endif
46
47#include <net/if.h>
8a2d8ee2 48#include <net/ifq_var.h>
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49#include <net/if_dl.h>
50
51#include <net/bpf.h>
52
929783d0 53#if defined(__DragonFly__) || defined(__FreeBSD__)
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54#ifdef INET
55#include <netinet/in.h>
56#include <netinet/if_ether.h>
57#endif
58#include <netinet/if_fddi.h>
59#else
60#include <net/if_fddi.h>
61#endif
62
63#if defined(__bsdi__)
64#include <i386/isa/isavar.h>
65#endif
66
67#ifdef NS
68#include <netns/ns.h>
69#include <netns/ns_if.h>
70#endif
71
929783d0 72#if defined(__DragonFly__) || defined(__FreeBSD__)
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73#include "pdqvar.h"
74#include "pdqreg.h"
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75#else
76#include "pdqvar.h"
77#include "pdqreg.h"
78#endif
79
80#if defined(__bsdi__) && _BSDI_VERSION < 199506 /* XXX */
81static void
82arp_ifinit(
83 struct arpcom *ac,
84 struct ifaddr *ifa)
85{
86 sc->sc_ac.ac_ipaddr = IA_SIN(ifa)->sin_addr;
87 arpwhohas(&sc->sc_ac, &IA_SIN(ifa)->sin_addr);
88#if _BSDI_VERSION >= 199401
89 ifa->ifa_rtrequest = arp_rtrequest;
90 ifa->ifa_flags |= RTF_CLONING;
91#endif
92}
93#endif
94
95
96void
97pdq_ifinit(
98 pdq_softc_t *sc)
99{
100 if (sc->sc_if.if_flags & IFF_UP) {
101 sc->sc_if.if_flags |= IFF_RUNNING;
102 if (sc->sc_if.if_flags & IFF_PROMISC) {
103 sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
104 } else {
105 sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
106 }
107 if (sc->sc_if.if_flags & IFF_ALLMULTI) {
108 sc->sc_pdq->pdq_flags |= PDQ_ALLMULTI;
109 } else {
110 sc->sc_pdq->pdq_flags &= ~PDQ_ALLMULTI;
111 }
112 if (sc->sc_if.if_flags & IFF_LINK1) {
113 sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
114 } else {
115 sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
116 }
117 sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
118 pdq_run(sc->sc_pdq);
119 } else {
120 sc->sc_if.if_flags &= ~IFF_RUNNING;
121 sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
122 pdq_stop(sc->sc_pdq);
123 }
124}
125\f
126void
127pdq_ifwatchdog(
128 struct ifnet *ifp)
129{
130 /*
131 * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
132 * seconds. Remove all queued packets.
133 */
134
135 ifp->if_flags &= ~IFF_OACTIVE;
136 ifp->if_timer = 0;
8a2d8ee2 137 ifq_purge(&ifp->if_snd);
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138}
139
140ifnet_ret_t
141pdq_ifstart(
142 struct ifnet *ifp)
143{
144 pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if));
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145 struct mbuf *m;
146 int tx = 0;
147
148 if ((ifp->if_flags & IFF_RUNNING) == 0)
149 return;
150
151 if (sc->sc_if.if_timer == 0)
152 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
153
154 if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
155 sc->sc_if.if_flags |= IFF_OACTIVE;
156 return;
157 }
158 for (;; tx = 1) {
8a2d8ee2 159 m = ifq_poll(&ifp->if_snd);
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160 if (m == NULL)
161 break;
162
8a2d8ee2 163 if (pdq_queue_transmit_data(ifp, sc->sc_pdq, m) == PDQ_FALSE) {
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164 break;
165 }
166 }
167 if (tx)
168 PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
169}
170\f
171void
172pdq_os_receive_pdu(
173 pdq_t *pdq,
174 struct mbuf *m,
175 size_t pktlen)
176{
177 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
178 struct fddi_header *fh = mtod(m, struct fddi_header *);
179
180 sc->sc_if.if_ipackets++;
7600679e 181 BPF_MTAP(&sc->sc_if, m);
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182 if ((fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
183 m_freem(m);
184 return;
185 }
186
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187 m->m_pkthdr.len = pktlen;
188 (*sc->sc_if.if_input)(&sc->sc_if, m);
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189}
190
191void
192pdq_os_restart_transmitter(
193 pdq_t *pdq)
194{
195 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
196 sc->sc_if.if_flags &= ~IFF_OACTIVE;
8a2d8ee2 197 if (ifq_is_empty(&sc->sc_if.if_snd)) {
984263bc 198 pdq_ifstart(&sc->sc_if);
8a2d8ee2 199 sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
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200 } else {
201 sc->sc_if.if_timer = 0;
202 }
203}
204
205void
206pdq_os_transmit_done(
207 pdq_t *pdq,
208 struct mbuf *m)
209{
210 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
7600679e 211 BPF_MTAP(&sc->sc_if, m);
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212 m_freem(m);
213 sc->sc_if.if_opackets++;
214}
215\f
216void
217pdq_os_addr_fill(
218 pdq_t *pdq,
219 pdq_lanaddr_t *addr,
220 size_t num_addrs)
221{
222 pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
223 struct ifmultiaddr *ifma;
224
03df8a20 225 LIST_FOREACH(ifma, &sc->sc_if.if_multiaddrs, ifma_link) {
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226 char *mcaddr;
227 if (ifma->ifma_addr->sa_family != AF_LINK)
228 continue;
229 mcaddr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr);
230 ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) mcaddr)[0];
231 ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) mcaddr)[1];
232 ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) mcaddr)[2];
233 addr++;
234 num_addrs--;
235 }
236}
237\f
238int
9974b71d 239pdq_ifioctl(struct ifnet *ifp, ioctl_cmd_t cmd, caddr_t data, struct ucred *cr)
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240{
241 pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_ac.ac_if));
07292c0a 242 int error = 0;
984263bc 243
07292c0a 244 crit_enter();
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245
246 switch (cmd) {
247 case SIOCSIFADDR: {
248 struct ifaddr *ifa = (struct ifaddr *)data;
249
250 ifp->if_flags |= IFF_UP;
251 switch(ifa->ifa_addr->sa_family) {
252#if defined(INET)
253 case AF_INET: {
254 pdq_ifinit(sc);
f15db79e 255 arp_ifinit(&sc->sc_ac.ac_if, ifa);
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256 break;
257 }
258#endif /* INET */
259
260#if defined(NS)
261 /* This magic copied from if_is.c; I don't use XNS,
262 * so I have no way of telling if this actually
263 * works or not.
264 */
265 case AF_NS: {
266 struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr);
267 if (ns_nullhost(*ina)) {
268 ina->x_host = *(union ns_host *)(sc->sc_ac.ac_enaddr);
269 } else {
270 ifp->if_flags &= ~IFF_RUNNING;
271 bcopy((caddr_t)ina->x_host.c_host,
272 (caddr_t)sc->sc_ac.ac_enaddr,
273 sizeof sc->sc_ac.ac_enaddr);
274 }
275
276 pdq_ifinit(sc);
277 break;
278 }
279#endif /* NS */
280
281 default: {
282 pdq_ifinit(sc);
283 break;
284 }
285 }
286 break;
287 }
288 case SIOCGIFADDR: {
289 struct ifreq *ifr = (struct ifreq *)data;
290 bcopy((caddr_t) sc->sc_ac.ac_enaddr,
291 (caddr_t) ((struct sockaddr *)&ifr->ifr_data)->sa_data,
292 6);
293 break;
294 }
295
296 case SIOCSIFFLAGS: {
297 pdq_ifinit(sc);
298 break;
299 }
300
301 case SIOCADDMULTI:
302 case SIOCDELMULTI:
303 /*
304 * Update multicast listeners
305 */
306 if (sc->sc_if.if_flags & IFF_RUNNING)
307 pdq_run(sc->sc_pdq);
308 error = 0;
309 break;
310
311#if defined(SIOCSIFMTU)
312#if !defined(ifr_mtu)
313#define ifr_mtu ifr_metric
314#endif
315 case SIOCSIFMTU: {
316 struct ifreq *ifr = (struct ifreq *)data;
317 /*
318 * Set the interface MTU.
319 */
320 if (ifr->ifr_mtu > FDDIMTU) {
321 error = EINVAL;
322 break;
323 }
324 ifp->if_mtu = ifr->ifr_mtu;
325 break;
326 }
327#endif /* SIOCSIFMTU */
328
329 default: {
330 error = EINVAL;
331 break;
332 }
333 }
334
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335 crit_exit();
336
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337 return error;
338}
339\f
340#ifndef IFF_NOTRAILERS
341#define IFF_NOTRAILERS 0
342#endif
343
344void
345pdq_ifattach(
346 pdq_softc_t *sc,
347 ifnet_ret_t (*ifwatchdog)(int unit))
348{
349 struct ifnet *ifp = &sc->sc_if;
350
351 ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
352
929783d0 353#if defined(__DragonFly__) || (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__)
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354 ifp->if_watchdog = pdq_ifwatchdog;
355#else
356 ifp->if_watchdog = ifwatchdog;
357#endif
358
359 ifp->if_ioctl = pdq_ifioctl;
984263bc 360 ifp->if_start = pdq_ifstart;
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361 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
362 ifq_set_ready(&ifp->if_snd);
984263bc 363
984263bc 364 fddi_ifattach(ifp);
984263bc 365}