169 	struct pvc_device *pvc = state(hdlc)->first_pvc;  in find_pvc()  local
171 	while (pvc) {  in find_pvc()
172 		if (pvc->dlci == dlci)  in find_pvc()
173 			return pvc;  in find_pvc()
174 		if (pvc->dlci > dlci)  in find_pvc()
176 		pvc = pvc->next;  in find_pvc()
185 	struct pvc_device *pvc, **pvc_p = &state(hdlc)->first_pvc;  in add_pvc()  local
195 	pvc = kzalloc(sizeof(*pvc), GFP_ATOMIC);  in add_pvc()
197 	printk(KERN_DEBUG "add_pvc: allocated pvc %p, frad %p\n", pvc, dev);  in add_pvc()
199 	if (!pvc)  in add_pvc()
202 	pvc->dlci = dlci;  in add_pvc()
203 	pvc->frad = dev;  in add_pvc()
204 	pvc->next = *pvc_p;	/* Put it in the chain */  in add_pvc()
205 	*pvc_p = pvc;  in add_pvc()
206 	return pvc;  in add_pvc()
209 static inline int pvc_is_used(struct pvc_device *pvc)  in pvc_is_used()  argument
211 	return pvc->main || pvc->ether;  in pvc_is_used()
214 static inline void pvc_carrier(int on, struct pvc_device *pvc)  in pvc_carrier()  argument
217 		if (pvc->main)  in pvc_carrier()
218 			if (!netif_carrier_ok(pvc->main))  in pvc_carrier()
219 				netif_carrier_on(pvc->main);  in pvc_carrier()
220 		if (pvc->ether)  in pvc_carrier()
221 			if (!netif_carrier_ok(pvc->ether))  in pvc_carrier()
222 				netif_carrier_on(pvc->ether);  in pvc_carrier()
224 		if (pvc->main)  in pvc_carrier()
225 			if (netif_carrier_ok(pvc->main))  in pvc_carrier()
226 				netif_carrier_off(pvc->main);  in pvc_carrier()
227 		if (pvc->ether)  in pvc_carrier()
228 			if (netif_carrier_ok(pvc->ether))  in pvc_carrier()
229 				netif_carrier_off(pvc->ether);  in pvc_carrier()
239 			struct pvc_device *pvc = *pvc_p;  in delete_unused_pvcs()  local
241 			printk(KERN_DEBUG "freeing unused pvc: %p\n", pvc);  in delete_unused_pvcs()
243 			*pvc_p = pvc->next;  in delete_unused_pvcs()
244 			kfree(pvc);  in delete_unused_pvcs()
251 static inline struct net_device **get_dev_p(struct pvc_device *pvc,  in get_dev_p()  argument
255 		return &pvc->ether;  in get_dev_p()
257 		return &pvc->main;  in get_dev_p()
325 	struct pvc_device *pvc = dev->ml_priv;  in pvc_open()  local
327 	if ((pvc->frad->flags & IFF_UP) == 0)  in pvc_open()
330 	if (pvc->open_count++ == 0) {  in pvc_open()
331 		hdlc_device *hdlc = dev_to_hdlc(pvc->frad);  in pvc_open()
334 			pvc->state.active = netif_carrier_ok(pvc->frad);  in pvc_open()
336 		pvc_carrier(pvc->state.active, pvc);  in pvc_open()
344 	struct pvc_device *pvc = dev->ml_priv;  in pvc_close()  local
346 	if (--pvc->open_count == 0) {  in pvc_close()
347 		hdlc_device *hdlc = dev_to_hdlc(pvc->frad);  in pvc_close()
350 			pvc->state.active = 0;  in pvc_close()
354 			pvc->state.active = 0;  in pvc_close()
362 	struct pvc_device *pvc = dev->ml_priv;  in pvc_ioctl()  local
377 		info.dlci = pvc->dlci;  in pvc_ioctl()
378 		memcpy(info.master, pvc->frad->name, IFNAMSIZ);  in pvc_ioctl()
390 	struct pvc_device *pvc = dev->ml_priv;  in pvc_xmit()  local
392 	if (!pvc->state.active)  in pvc_xmit()
419 	if (fr_hard_header(skb, pvc->dlci))  in pvc_xmit()
424 	if (pvc->state.fecn) /* TX Congestion counter */  in pvc_xmit()
426 	skb->dev = pvc->frad;  in pvc_xmit()
438 static inline void fr_log_dlci_active(struct pvc_device *pvc)  in fr_log_dlci_active()  argument
440 	netdev_info(pvc->frad, "DLCI %d [%s%s%s]%s %s\n",  in fr_log_dlci_active()
441 		    pvc->dlci,  in fr_log_dlci_active()
442 		    pvc->main ? pvc->main->name : "",  in fr_log_dlci_active()
443 		    pvc->main && pvc->ether ? " " : "",  in fr_log_dlci_active()
444 		    pvc->ether ? pvc->ether->name : "",  in fr_log_dlci_active()
445 		    pvc->state.new ? " new" : "",  in fr_log_dlci_active()
446 		    !pvc->state.exist ? "deleted" :  in fr_log_dlci_active()
447 		    pvc->state.active ? "active" : "inactive");  in fr_log_dlci_active()
460 	struct pvc_device *pvc = state(hdlc)->first_pvc;  in fr_lmi_send()  local
503 		while (pvc) {  in fr_lmi_send()
509 			if (state(hdlc)->reliable && !pvc->state.exist) {  in fr_lmi_send()
510 				pvc->state.exist = pvc->state.new = 1;  in fr_lmi_send()
511 				fr_log_dlci_active(pvc);  in fr_lmi_send()
515 			if (pvc->open_count && !pvc->state.active &&  in fr_lmi_send()
516 			    pvc->state.exist && !pvc->state.new) {  in fr_lmi_send()
517 				pvc_carrier(1, pvc);  in fr_lmi_send()
518 				pvc->state.active = 1;  in fr_lmi_send()
519 				fr_log_dlci_active(pvc);  in fr_lmi_send()
523 				data[i] = pvc->dlci >> 8;  in fr_lmi_send()
524 				data[i + 1] = pvc->dlci & 0xFF;  in fr_lmi_send()
526 				data[i] = (pvc->dlci >> 4) & 0x3F;  in fr_lmi_send()
527 				data[i + 1] = ((pvc->dlci << 3) & 0x78) | 0x80;  in fr_lmi_send()
531 			if (pvc->state.new)  in fr_lmi_send()
533 			else if (pvc->state.active)  in fr_lmi_send()
537 			pvc = pvc->next;  in fr_lmi_send()
553 	struct pvc_device *pvc = state(hdlc)->first_pvc;  in fr_set_link_state()  local
562 			while (pvc) {	/* Activate all PVCs */  in fr_set_link_state()
563 				pvc_carrier(1, pvc);  in fr_set_link_state()
564 				pvc->state.exist = pvc->state.active = 1;  in fr_set_link_state()
565 				pvc->state.new = 0;  in fr_set_link_state()
566 				pvc = pvc->next;  in fr_set_link_state()
571 		while (pvc) {		/* Deactivate all PVCs */  in fr_set_link_state()
572 			pvc_carrier(0, pvc);  in fr_set_link_state()
573 			pvc->state.exist = pvc->state.active = 0;  in fr_set_link_state()
574 			pvc->state.new = 0;  in fr_set_link_state()
576 				pvc->state.bandwidth = 0;  in fr_set_link_state()
577 			pvc = pvc->next;  in fr_set_link_state()
636 	struct pvc_device *pvc;  in fr_lmi_recv()  local
732 			pvc = state(hdlc)->first_pvc;  in fr_lmi_recv()
733 			while (pvc) {  in fr_lmi_recv()
734 				if (pvc->state.new) {  in fr_lmi_recv()
735 					pvc->state.new = 0;  in fr_lmi_recv()
740 				pvc = pvc->next;  in fr_lmi_recv()
765 	pvc = state(hdlc)->first_pvc;  in fr_lmi_recv()
767 	while (pvc) {  in fr_lmi_recv()
768 		pvc->state.deleted = 1;  in fr_lmi_recv()
769 		pvc = pvc->next;  in fr_lmi_recv()
805 		pvc = add_pvc(dev, dlci);  in fr_lmi_recv()
807 		if (!pvc && !no_ram) {  in fr_lmi_recv()
812 		if (pvc) {  in fr_lmi_recv()
813 			pvc->state.exist = 1;  in fr_lmi_recv()
814 			pvc->state.deleted = 0;  in fr_lmi_recv()
815 			if (active != pvc->state.active ||  in fr_lmi_recv()
816 			    new != pvc->state.new ||  in fr_lmi_recv()
817 			    bw != pvc->state.bandwidth ||  in fr_lmi_recv()
818 			    !pvc->state.exist) {  in fr_lmi_recv()
819 				pvc->state.new = new;  in fr_lmi_recv()
820 				pvc->state.active = active;  in fr_lmi_recv()
821 				pvc->state.bandwidth = bw;  in fr_lmi_recv()
822 				pvc_carrier(active, pvc);  in fr_lmi_recv()
823 				fr_log_dlci_active(pvc);  in fr_lmi_recv()
830 	pvc = state(hdlc)->first_pvc;  in fr_lmi_recv()
832 	while (pvc) {  in fr_lmi_recv()
833 		if (pvc->state.deleted && pvc->state.exist) {  in fr_lmi_recv()
834 			pvc_carrier(0, pvc);  in fr_lmi_recv()
835 			pvc->state.active = pvc->state.new = 0;  in fr_lmi_recv()
836 			pvc->state.exist = 0;  in fr_lmi_recv()
837 			pvc->state.bandwidth = 0;  in fr_lmi_recv()
838 			fr_log_dlci_active(pvc);  in fr_lmi_recv()
840 		pvc = pvc->next;  in fr_lmi_recv()
849 static int fr_snap_parse(struct sk_buff *skb, struct pvc_device *pvc)  in fr_snap_parse()  argument
855 		if (!pvc->main)  in fr_snap_parse()
857 		skb->dev = pvc->main;  in fr_snap_parse()
870 			if (!pvc->ether)  in fr_snap_parse()
875 			skb->protocol = eth_type_trans(skb, pvc->ether);  in fr_snap_parse()
896 	struct pvc_device *pvc;  in fr_rx()  local
915 	pvc = find_pvc(hdlc, dlci);  in fr_rx()
916 	if (!pvc) {  in fr_rx()
924 	if (pvc->state.fecn != fh->fecn) {  in fr_rx()
929 		pvc->state.fecn ^= 1;  in fr_rx()
932 	if (pvc->state.becn != fh->becn) {  in fr_rx()
937 		pvc->state.becn ^= 1;  in fr_rx()
947 		if (!pvc->main)  in fr_rx()
950 		skb->dev = pvc->main;  in fr_rx()
955 		if (!pvc->main)  in fr_rx()
958 		skb->dev = pvc->main;  in fr_rx()
969 			if (fr_snap_parse(skb, pvc))  in fr_rx()
984 	if (pvc->state.becn)  in fr_rx()
1035 	struct pvc_device *pvc = state(hdlc)->first_pvc;  in fr_close()  local
1037 	while (pvc) {		/* Shutdown all PVCs for this FRAD */  in fr_close()
1038 		if (pvc->main)  in fr_close()
1039 			dev_close(pvc->main);  in fr_close()
1040 		if (pvc->ether)  in fr_close()
1041 			dev_close(pvc->ether);  in fr_close()
1042 		pvc = pvc->next;  in fr_close()
1065 	struct pvc_device *pvc;  in fr_add_pvc()  local
1069 	pvc = add_pvc(frad, dlci);  in fr_add_pvc()
1070 	if (!pvc) {  in fr_add_pvc()
1075 	if (*get_dev_p(pvc, type))  in fr_add_pvc()
1078 	used = pvc_is_used(pvc);  in fr_add_pvc()
1107 	dev->ml_priv = pvc;  in fr_add_pvc()
1116 	*get_dev_p(pvc, type) = dev;  in fr_add_pvc()
1126 	struct pvc_device *pvc;  in fr_del_pvc()  local
1129 	pvc = find_pvc(hdlc, dlci);  in fr_del_pvc()
1130 	if (!pvc)  in fr_del_pvc()
1133 	dev = *get_dev_p(pvc, type);  in fr_del_pvc()
1141 	*get_dev_p(pvc, type) = NULL;  in fr_del_pvc()
1143 	if (!pvc_is_used(pvc)) {  in fr_del_pvc()
1154 	struct pvc_device *pvc = state(hdlc)->first_pvc;  in fr_destroy()  local
1160 	while (pvc) {  in fr_destroy()
1161 		struct pvc_device *next = pvc->next;  in fr_destroy()
1163 		if (pvc->main)  in fr_destroy()
1164 			unregister_netdevice(pvc->main);  in fr_destroy()
1166 		if (pvc->ether)  in fr_destroy()
1167 			unregister_netdevice(pvc->ether);  in fr_destroy()
1169 		kfree(pvc);  in fr_destroy()
1170 		pvc = next;  in fr_destroy()
1190 	fr_proto_pvc pvc;  in fr_ioctl()  local
1261 		if (copy_from_user(&pvc, ifs->ifs_ifsu.fr_pvc,  in fr_ioctl()
1265 		if (pvc.dlci <= 0 || pvc.dlci >= 1024)  in fr_ioctl()
1276 			return fr_add_pvc(dev, pvc.dlci, result);  in fr_ioctl()
1278 			return fr_del_pvc(hdlc, pvc.dlci, result);  in fr_ioctl()