40  * - ifp->if_reassign function once we can test with vimage. Depending on
133 	struct ifnet	*ifp;		/* This ifp. */
134 	struct ifnet	*oifp;		/* other ifp of pair. */
149 	struct ifnet			*ifp;
234 cpuid_from_ifp(struct ifnet *ifp)
238 	if (ifp == NULL)
240 	sc = ifp->if_softc;
251 	struct ifnet *ifp;
254 	ifp = m->m_pkthdr.rcvif;
255 	(*ifp->if_input)(ifp, m);
256 	sc = ifp->if_softc;
259 	    ("%s: ifp=%p sc->refcount not >= 1: %d",
260 	    __func__, ifp, sc->refcount));
261 	DPRINTF("ifp=%p refcount=%u\n", ifp, sc->refcount);
278 	struct ifnet *ifp;
290 		ifp = elm->ifp;
292 		ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
293 		epair_start_locked(ifp);
295 		IFQ_LOCK(&ifp->if_snd);
296 		if (IFQ_IS_EMPTY(&ifp->if_snd)) {
301 			/* The cached ifp goes off the list. */
302 			sc = ifp->if_softc;
305 			    ("%s: ifp=%p sc->refcount not >= 1: %d",
306 			    __func__, ifp, sc->refcount));
309 		IFQ_UNLOCK(&ifp->if_snd);
311 		if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) != 0) {
326 epair_remove_ifp_from_draining(struct ifnet *ifp)
337 			if (ifp == elm->ifp) {
343 				/* The cached ifp goes off the list. */
344 				sc = ifp->if_softc;
347 				    ("%s: ifp=%p sc->refcount not >= 1: %d",
348 				    __func__, ifp, sc->refcount));
357 epair_add_ifp_for_draining(struct ifnet *ifp)
363 	sc = ifp->if_softc;
367 		if (elm->ifp == ifp)
369 	/* If the ifp is there already, return success. */
377 	elm->ifp = ifp;
378 	/* Add a reference for the ifp pointer on the list. */
386 epair_start_locked(struct ifnet *ifp)
394 	DPRINTF("ifp=%p\n", ifp);
395 	sc = ifp->if_softc;
399 	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
401 	if ((ifp->if_flags & IFF_UP) == 0)
412 		IFQ_DEQUEUE(&ifp->if_snd, m);
415 		BPF_MTAP(ifp, m);
423 			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
427 		DPRINTF("packet %s -> %s\n", ifp->if_xname, oifp->if_xname);
439 			if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
445 			ifp->if_drv_flags |= IFF_DRV_OACTIVE;
446 			(void) epair_add_ifp_for_draining(ifp);
447 			if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
450 			    ("%s: ifp=%p sc->refcount not >= 1: %d",
457 epair_start(struct ifnet *ifp)
461 	epair_dpcpu = DPCPU_ID_PTR(cpuid_from_ifp(ifp), epair_dpcpu);
463 	epair_start_locked(ifp);
468 epair_transmit_locked(struct ifnet *ifp, struct mbuf *m)
476 	DPRINTF("ifp=%p m=%p\n", ifp, m);
477 	sc = ifp->if_softc;
490 	if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) {
494 	if ((ifp->if_flags & IFF_UP) == 0) {
499 	BPF_MTAP(ifp, m);
508 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
514 	DPRINTF("packet %s -> %s\n", ifp->if_xname, oifp->if_xname);
518 	IF_LOCK(&ifp->if_snd);
519 	if (ALTQ_IS_ENABLED(&ifp->if_snd)) {
520 		ALTQ_ENQUEUE(&ifp->if_snd, m, NULL, error);
522 			if_inc_counter(ifp, IFCOUNTER_OQDROPS, 1);
523 		IF_UNLOCK(&ifp->if_snd);
525 			if_inc_counter(ifp, IFCOUNTER_OBYTES, len);
527 				if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
529 			if ((ifp->if_drv_flags & IFF_DRV_OACTIVE) == 0)
530 				epair_start_locked(ifp);
532 				(void)epair_add_ifp_for_draining(ifp);
536 	IF_UNLOCK(&ifp->if_snd);
542 		 * queuing to the ifq but do not call ifp->if_start.
545 		IFQ_ENQUEUE(&ifp->if_snd, m, error);
547 			(void)epair_add_ifp_for_draining(ifp);
561 		if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
567 		if_inc_counter(ifp, IFCOUNTER_OBYTES, len);
569 			if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
575 		ifp->if_drv_flags |= IFF_DRV_OACTIVE;
576 		if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
579 		    ("%s: ifp=%p sc->refcount not >= 1: %d",
587 epair_transmit(struct ifnet *ifp, struct mbuf *m)
592 	epair_dpcpu = DPCPU_ID_PTR(cpuid_from_ifp(ifp), epair_dpcpu);
594 	error = epair_transmit_locked(ifp, m);
600 epair_qflush(struct ifnet *ifp)
604 	sc = ifp->if_softc;
605 	KASSERT(sc != NULL, ("%s: ifp=%p, epair_softc gone? sc=%p\n",
606 	    __func__, ifp, sc));
608 	 * Remove this ifp from all backpointer lists. The interface will not
612 	epair_remove_ifp_from_draining(ifp);
615 		sc->if_qflush(ifp);
619 epair_media_change(struct ifnet *ifp __unused)
627 epair_media_status(struct ifnet *ifp __unused, struct ifmediareq *imr)
635 epair_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
651 		sc = ifp->if_softc;
652 		error = ifmedia_ioctl(ifp, ifr, &sc->media, cmd);
657 		ifp->if_mtu = ifr->ifr_mtu;
663 		error = ether_ioctl(ifp, cmd, data);
710 	struct ifnet *ifp;
713 	ifp = scb->ifp;
716 	eaddr[3] = (ifp->if_index >> 8) & 0xff;
717 	eaddr[4] = ifp->if_index & 0xff;
719 	ether_ifattach(ifp, eaddr);
721 	if_clone_addif(ifc, ifp);
728 	struct ifnet *ifp;
776 	sca->ifp = if_alloc(IFT_ETHER);
777 	if (sca->ifp == NULL) {
785 	scb->ifp = if_alloc(IFT_ETHER);
786 	if (scb->ifp == NULL) {
788 		if_free(sca->ifp);
797 	sca->oifp = scb->ifp;
798 	scb->oifp = sca->ifp;
807 	    netisr_get_cpuid(sca->ifp->if_index);
809 	    netisr_get_cpuid(scb->ifp->if_index);
820 	ifp = sca->ifp;
821 	ifp->if_softc = sca;
822 	strlcpy(ifp->if_xname, name, IFNAMSIZ);
823 	ifp->if_dname = epairname;
824 	ifp->if_dunit = unit;
825 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
826 	ifp->if_capabilities = IFCAP_VLAN_MTU;
827 	ifp->if_capenable = IFCAP_VLAN_MTU;
828 	ifp->if_start = epair_start;
829 	ifp->if_ioctl = epair_ioctl;
830 	ifp->if_init  = epair_init;
831 	ifp->if_snd.ifq_maxlen = ifqmaxlen;
834 	eaddr[3] = (ifp->if_index >> 8) & 0xff;
835 	eaddr[4] = ifp->if_index & 0xff;
837 	ether_ifattach(ifp, eaddr);
838 	sca->if_qflush = ifp->if_qflush;
839 	ifp->if_qflush = epair_qflush;
840 	ifp->if_transmit = epair_transmit;
841 	ifp->if_baudrate = IF_Gbps(10);	/* arbitrary maximum */
846 	ifp = scb->ifp;
847 	ifp->if_softc = scb;
848 	strlcpy(ifp->if_xname, name, IFNAMSIZ);
849 	ifp->if_dname = epairname;
850 	ifp->if_dunit = unit;
851 	ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
852 	ifp->if_capabilities = IFCAP_VLAN_MTU;
853 	ifp->if_capenable = IFCAP_VLAN_MTU;
854 	ifp->if_start = epair_start;
855 	ifp->if_ioctl = epair_ioctl;
856 	ifp->if_init  = epair_init;
857 	ifp->if_snd.ifq_maxlen = ifqmaxlen;
862 	strlcpy(name, scb->ifp->if_xname, len);
865 	scb->if_qflush = ifp->if_qflush;
866 	ifp->if_qflush = epair_qflush;
867 	ifp->if_transmit = epair_transmit;
868 	ifp->if_baudrate = IF_Gbps(10);	/* arbitrary maximum */
871 	 * Restore name to <n>a as the ifp for this will go into the
874 	strlcpy(name, sca->ifp->if_xname, len);
878 	sca->ifp->if_drv_flags |= IFF_DRV_RUNNING;
879 	scb->ifp->if_drv_flags |= IFF_DRV_RUNNING;
880 	if_link_state_change(sca->ifp, LINK_STATE_UP);
881 	if_link_state_change(scb->ifp, LINK_STATE_UP);
887 epair_clone_destroy(struct if_clone *ifc, struct ifnet *ifp)
893 	DPRINTF("ifp=%p\n", ifp);
900 	if (ifp->if_softc == NULL)
903 	unit = ifp->if_dunit;
904 	sca = ifp->if_softc;
908 	DPRINTF("ifp=%p oifp=%p\n", ifp, oifp);
909 	if_link_state_change(ifp, LINK_STATE_DOWN);
911 	ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
928 	    ("%s: ifp=%p scb->refcount!=1: %d", __func__, oifp, scb->refcount));
939 	ether_ifdetach(ifp);
945 	    ("%s: ifp=%p sca->refcount!=1: %d", __func__, ifp, sca->refcount));
946 	if_free(ifp);

Indexes created Thu May 16 13:05:45 MDT 2024