Annotation of sys/dev/ic/pdq_ifsubr.c, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: pdq_ifsubr.c,v 1.19 2006/05/30 21:33:59 fkr Exp $ */
2: /* $NetBSD: pdq_ifsubr.c,v 1.5 1996/05/20 00:26:21 thorpej Exp $ */
3:
4: /*-
5: * Copyright (c) 1995, 1996 Matt Thomas <matt@3am-software.com>
6: * All rights reserved.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. The name of the author may not be used to endorse or promote products
14: * derived from this software without specific prior written permission
15: *
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26: *
27: * Id: pdq_ifsubr.c,v 1.6 1996/05/16 14:25:26 thomas Exp
28: *
29: */
30:
31: /*
32: * DEC PDQ FDDI Controller; code for BSD derived operating systems
33: *
34: * This module provide bus independent BSD specific O/S functions.
35: * (ie. it provides an ifnet interface to the rest of the system)
36: */
37:
38:
39: #include <sys/param.h>
40: #include <sys/kernel.h>
41: #include <sys/mbuf.h>
42: #include <sys/protosw.h>
43: #include <sys/socket.h>
44: #include <sys/ioctl.h>
45: #include <sys/errno.h>
46: #include <sys/malloc.h>
47: #if defined(__FreeBSD__)
48: #include <sys/devconf.h>
49: #elif defined(__NetBSD__) || defined(__OpenBSD__)
50: #include <sys/device.h>
51: #endif
52:
53: #include <net/if.h>
54: #include <net/if_types.h>
55: #include <net/if_dl.h>
56: #include <net/route.h>
57:
58: #include "bpfilter.h"
59: #if NBPFILTER > 0
60: #include <net/bpf.h>
61: #endif
62:
63: #ifdef INET
64: #include <netinet/in.h>
65: #include <netinet/in_systm.h>
66: #include <netinet/in_var.h>
67: #include <netinet/ip.h>
68: #include <netinet/if_ether.h>
69: #endif
70: #if defined(__FreeBSD__)
71: #include <netinet/if_fddi.h>
72: #else
73: #include <net/if_fddi.h>
74: #endif
75:
76: #include <uvm/uvm_extern.h>
77:
78: #include "pdqvar.h"
79: #include "pdqreg.h"
80:
81: void
82: pdq_ifinit(
83: pdq_softc_t *sc)
84: {
85: if (sc->sc_if.if_flags & IFF_UP) {
86: sc->sc_if.if_flags |= IFF_RUNNING;
87: if (sc->sc_if.if_flags & IFF_PROMISC) {
88: sc->sc_pdq->pdq_flags |= PDQ_PROMISC;
89: } else {
90: sc->sc_pdq->pdq_flags &= ~PDQ_PROMISC;
91: }
92: if (sc->sc_if.if_flags & IFF_ALLMULTI) {
93: sc->sc_pdq->pdq_flags |= PDQ_ALLMULTI;
94: } else {
95: sc->sc_pdq->pdq_flags &= ~PDQ_ALLMULTI;
96: }
97: if (sc->sc_if.if_flags & IFF_LINK1) {
98: sc->sc_pdq->pdq_flags |= PDQ_PASS_SMT;
99: } else {
100: sc->sc_pdq->pdq_flags &= ~PDQ_PASS_SMT;
101: }
102: sc->sc_pdq->pdq_flags |= PDQ_RUNNING;
103: pdq_run(sc->sc_pdq);
104: } else {
105: sc->sc_if.if_flags &= ~IFF_RUNNING;
106: sc->sc_pdq->pdq_flags &= ~PDQ_RUNNING;
107: pdq_stop(sc->sc_pdq);
108: }
109: }
110:
111: void
112: pdq_ifwatchdog(
113: struct ifnet *ifp)
114: {
115: /*
116: * No progress was made on the transmit queue for PDQ_OS_TX_TRANSMIT
117: * seconds. Remove all queued packets.
118: */
119:
120: ifp->if_flags &= ~IFF_OACTIVE;
121: ifp->if_timer = 0;
122: IFQ_PURGE(&ifp->if_snd);
123: }
124:
125: ifnet_ret_t
126: pdq_ifstart(
127: struct ifnet *ifp)
128: {
129: pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_arpcom.ac_if));
130: struct mbuf *m;
131: int tx = 0;
132:
133: if ((ifp->if_flags & IFF_RUNNING) == 0)
134: return;
135:
136: if (sc->sc_if.if_timer == 0)
137: sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
138:
139: if ((sc->sc_pdq->pdq_flags & PDQ_TXOK) == 0) {
140: sc->sc_if.if_flags |= IFF_OACTIVE;
141: return;
142: }
143: for (;; tx = 1) {
144: IFQ_POLL(&ifp->if_snd, m);
145: if (m == NULL)
146: break;
147:
148: if (pdq_queue_transmit_data(sc->sc_pdq, m) == PDQ_FALSE) {
149: ifp->if_flags |= IFF_OACTIVE;
150: break;
151: }
152:
153: IFQ_DEQUEUE(&ifp->if_snd, m);
154: }
155: if (tx)
156: PDQ_DO_TYPE2_PRODUCER(sc->sc_pdq);
157: }
158:
159: void
160: pdq_os_receive_pdu(
161: pdq_t *pdq,
162: struct mbuf *m,
163: size_t pktlen)
164: {
165: pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
166: struct fddi_header *fh = mtod(m, struct fddi_header *);
167:
168: sc->sc_if.if_ipackets++;
169: #if NBPFILTER > 0
170: if (sc->sc_bpf != NULL)
171: PDQ_BPF_MTAP(sc, m, BPF_DIRECTION_IN);
172: if ((fh->fddi_fc & (FDDIFC_L|FDDIFC_F)) != FDDIFC_LLC_ASYNC) {
173: m_freem(m);
174: return;
175: }
176: #endif
177:
178: m->m_data += sizeof(struct fddi_header);
179: m->m_len -= sizeof(struct fddi_header);
180: m->m_pkthdr.len = pktlen - sizeof(struct fddi_header);
181: m->m_pkthdr.rcvif = &sc->sc_if;
182: fddi_input(&sc->sc_if, fh, m);
183: }
184:
185: void
186: pdq_os_restart_transmitter(
187: pdq_t *pdq)
188: {
189: pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
190: sc->sc_if.if_flags &= ~IFF_OACTIVE;
191: if (!IFQ_IS_EMPTY(&sc->sc_if.if_snd)) {
192: sc->sc_if.if_timer = PDQ_OS_TX_TIMEOUT;
193: pdq_ifstart(&sc->sc_if);
194: } else {
195: sc->sc_if.if_timer = 0;
196: }
197: }
198:
199: void
200: pdq_os_transmit_done(
201: pdq_t *pdq,
202: struct mbuf *m)
203: {
204: pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
205: #if NBPFILTER > 0
206: if (sc->sc_bpf != NULL)
207: PDQ_BPF_MTAP(sc, m, BPF_DIRECTION_OUT);
208: #endif
209: m_freem(m);
210: sc->sc_if.if_opackets++;
211: }
212:
213: void
214: pdq_os_addr_fill(
215: pdq_t *pdq,
216: pdq_lanaddr_t *addr,
217: size_t num_addrs)
218: {
219: pdq_softc_t *sc = (pdq_softc_t *) pdq->pdq_os_ctx;
220: struct ether_multistep step;
221: struct ether_multi *enm;
222:
223: ETHER_FIRST_MULTI(step, &sc->sc_arpcom, enm);
224: while (enm != NULL && num_addrs > 0) {
225: ((u_short *) addr->lanaddr_bytes)[0] = ((u_short *) enm->enm_addrlo)[0];
226: ((u_short *) addr->lanaddr_bytes)[1] = ((u_short *) enm->enm_addrlo)[1];
227: ((u_short *) addr->lanaddr_bytes)[2] = ((u_short *) enm->enm_addrlo)[2];
228: ETHER_NEXT_MULTI(step, enm);
229: addr++;
230: num_addrs--;
231: }
232: }
233:
234: int
235: pdq_ifioctl(
236: struct ifnet *ifp,
237: ioctl_cmd_t cmd,
238: caddr_t data)
239: {
240: pdq_softc_t *sc = (pdq_softc_t *) ((caddr_t) ifp - offsetof(pdq_softc_t, sc_arpcom.ac_if));
241: int s, error = 0;
242:
243: s = splnet();
244:
245: switch (cmd) {
246: case SIOCSIFADDR: {
247: struct ifaddr *ifa = (struct ifaddr *)data;
248:
249: ifp->if_flags |= IFF_UP;
250: switch(ifa->ifa_addr->sa_family) {
251: #if defined(INET)
252: case AF_INET: {
253: pdq_ifinit(sc);
254: arp_ifinit(&sc->sc_arpcom, ifa);
255: break;
256: }
257: #endif /* INET */
258:
259: #if defined(NS)
260: /* This magic copied from if_is.c; I don't use XNS,
261: * so I have no way of telling if this actually
262: * works or not.
263: */
264: case AF_NS: {
265: struct ns_addr *ina = &(IA_SNS(ifa)->sns_addr);
266: if (ns_nullhost(*ina)) {
267: ina->x_host = *(union ns_host *)(sc->sc_arpcom.ac_enaddr);
268: } else {
269: ifp->if_flags &= ~IFF_RUNNING;
270: bcopy((caddr_t)ina->x_host.c_host,
271: (caddr_t)sc->sc_arpcom.ac_enaddr,
272: sizeof sc->sc_arpcom.ac_enaddr);
273: }
274:
275: pdq_ifinit(sc);
276: break;
277: }
278: #endif /* NS */
279:
280: default: {
281: pdq_ifinit(sc);
282: break;
283: }
284: }
285: break;
286: }
287:
288: case SIOCSIFFLAGS: {
289: pdq_ifinit(sc);
290: break;
291: }
292:
293: case SIOCADDMULTI:
294: case SIOCDELMULTI: {
295: /*
296: * Update multicast listeners
297: */
298: if (cmd == SIOCADDMULTI)
299: error = ether_addmulti((struct ifreq *)data, &sc->sc_arpcom);
300: else
301: error = ether_delmulti((struct ifreq *)data, &sc->sc_arpcom);
302:
303: if (error == ENETRESET) {
304: if (sc->sc_if.if_flags & IFF_RUNNING)
305: pdq_run(sc->sc_pdq);
306: error = 0;
307: }
308: break;
309: }
310:
311: default: {
312: error = EINVAL;
313: break;
314: }
315: }
316:
317: splx(s);
318: return error;
319: }
320:
321: #ifndef IFF_NOTRAILERS
322: #define IFF_NOTRAILERS 0
323: #endif
324:
325: void
326: pdq_ifattach(
327: pdq_softc_t *sc,
328: ifnet_ret_t (*ifwatchdog)(int unit))
329: {
330: struct ifnet *ifp = &sc->sc_if;
331:
332: ifp->if_flags = IFF_BROADCAST|IFF_SIMPLEX|IFF_NOTRAILERS|IFF_MULTICAST;
333:
334: #if (defined(__FreeBSD__) && BSD >= 199506) || defined(__NetBSD__) || \
335: defined(__OpenBSD__)
336: ifp->if_watchdog = pdq_ifwatchdog;
337: #else
338: ifp->if_watchdog = ifwatchdog;
339: #endif
340:
341: ifp->if_ioctl = pdq_ifioctl;
342: ifp->if_start = pdq_ifstart;
343: IFQ_SET_READY(&ifp->if_snd);
344:
345: if_attach(ifp);
346: fddi_ifattach(ifp);
347: #if NBPFILTER > 0
348: PDQ_BPFATTACH(sc, DLT_FDDI, sizeof(struct fddi_header));
349: #endif
350: }
CVSweb
![[BACK]](/icons/back.gif){kind=icon}
Return to pdq_ifsubr.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / sys / dev / ic