dev/sn/if_sn.c

123 static int snioctl(struct ifnet * ifp, u_long, caddr_t);
138 static int sn_getmcf(struct ifnet *ifp, u_char *mcf);
162 	struct ifnet    *ifp;
170 	ifp = sc->ifp = if_alloc(IFT_ETHER);
171 	if (ifp == NULL) {
204 	ifp->if_softc = sc;
205 	if_initname(ifp, device_get_name(dev), device_get_unit(dev));
206 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
207 	ifp->if_start = snstart;
208 	ifp->if_ioctl = snioctl;
209 	ifp->if_init = sninit;
210 	ifp->if_baudrate = 10000000;
211 	IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
212 	ifp->if_snd.ifq_maxlen = ifqmaxlen;
213 	IFQ_SET_READY(&ifp->if_snd);
215 	ether_ifattach(ifp, eaddr);
239 	struct ifnet	*ifp = sc->ifp;
241 	ether_ifdetach(ifp);
247 	if_free(ifp);
268 	struct ifnet *ifp = sc->ifp;
350 	ifp->if_drv_flags |= IFF_DRV_RUNNING;
351 	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
357 	snstart_locked(ifp);
361 snstart(struct ifnet *ifp)
363 	struct sn_softc *sc = ifp->if_softc;
365 	snstart_locked(ifp);
371 snstart_locked(struct ifnet *ifp)
373 	struct sn_softc *sc = ifp->if_softc;
387 	if (ifp->if_drv_flags & IFF_DRV_OACTIVE)
390 		if_printf(ifp, "snstart() while memory allocation pending\n");
398 	m = ifp->if_snd.ifq_head;
415 		if_printf(ifp, "large packet discarded (A)\n");
416 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
417 		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
475 		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
485 			if_printf(ifp, "Memory allocation failed\n");
510 	IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
558 	ifp->if_drv_flags |= IFF_DRV_OACTIVE;
561 	BPF_MTAP(ifp, top);
563 	if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
590 snresume(struct ifnet *ifp)
592 	struct sn_softc *sc = ifp->if_softc;
612 	m = ifp->if_snd.ifq_head;
614 		if_printf(ifp, "snresume() with nothing to send\n");
631 		if_printf(ifp, "large packet discarded (B)\n");
632 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
633 		IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
667 		if_printf(ifp, "Memory allocation failed.  Weird.\n");
681 		if_printf(ifp, "memory allocation wrong size.  Weird.\n");
709 	IFQ_DRV_DEQUEUE(&ifp->if_snd, m);
755 	BPF_MTAP(ifp, top);
757 	if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
765 	ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
766 	snstart_locked(ifp);
772 	ifp->if_drv_flags |= IFF_DRV_OACTIVE;
792 	struct ifnet   *ifp = sc->ifp;
837 		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
855 		snread(ifp);
865 		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
866 		snresume(ifp);
903 			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
907 			if_inc_counter(ifp, IFCOUNTER_COLLISIONS, 1);
932 		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
933 		snstart_locked(ifp);
958 		if_inc_counter(ifp, IFCOUNTER_COLLISIONS, card_stats & ECR_COLN_MASK);
963 		if_inc_counter(ifp, IFCOUNTER_COLLISIONS, (card_stats & ECR_MCOLN_MASK) >> 4);
970 		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
971 		snstart_locked(ifp);
1001 snread(struct ifnet *ifp)
1003         struct sn_softc *sc = ifp->if_softc;
1048 		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1068 	m->m_pkthdr.rcvif = ifp;
1076 		if_inc_counter(ifp, IFCOUNTER_IERRORS, 1);
1091 	if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
1106 	(*ifp->if_input)(ifp, m);
1137 snioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
1139 	struct sn_softc *sc = ifp->if_softc;
1145 		if ((ifp->if_flags & IFF_UP) == 0 &&
1146 		    ifp->if_drv_flags & IFF_DRV_RUNNING) {
1164 		error = ether_ioctl(ifp, cmd, data);
1192 	struct ifnet   *ifp = sc->ifp;
1212 	ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
1374 	struct ifnet *ifp = sc->ifp;
1387 	if (ifp->if_flags & IFF_PROMISC) {
1389 	} else if (ifp->if_flags & IFF_ALLMULTI) {
1392 		if (sn_getmcf(ifp, mcf)) {
1412 sn_getmcf(struct ifnet *ifp, uint8_t *mcf)
1421 	if_maddr_rlock(ifp);
1422 	TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
1424 		if_maddr_runlock(ifp);
1437 	if_maddr_runlock(ifp);