19 static void xen_unregister_watchers(struct xenvif *vif);
92 	dev_queue = netdev_get_tx_queue(queue->vif->dev, queue->id);  in xenvif_read_io_ring()
163 	struct xenvif *vif = m->private;  in xenvif_ctrl_show()  local
165 	xenvif_dump_hash_info(vif, m);  in xenvif_ctrl_show()
171 static void xenvif_debugfs_addif(struct xenvif *vif)  in xenvif_debugfs_addif()  argument
175 	vif->xenvif_dbg_root = debugfs_create_dir(vif->dev->name,  in xenvif_debugfs_addif()
177 	for (i = 0; i < vif->num_queues; ++i) {  in xenvif_debugfs_addif()
181 		debugfs_create_file(filename, 0600, vif->xenvif_dbg_root,  in xenvif_debugfs_addif()
182 				    &vif->queues[i],  in xenvif_debugfs_addif()
186 	if (vif->ctrl_irq)  in xenvif_debugfs_addif()
187 		debugfs_create_file("ctrl", 0400, vif->xenvif_dbg_root, vif,  in xenvif_debugfs_addif()
191 static void xenvif_debugfs_delif(struct xenvif *vif)  in xenvif_debugfs_delif()  argument
193 	debugfs_remove_recursive(vif->xenvif_dbg_root);  in xenvif_debugfs_delif()
194 	vif->xenvif_dbg_root = NULL;  in xenvif_debugfs_delif()
200  * and vif variables to the environment, for the benefit of the vif-* hotplug
214 	if (!be->vif)  in netback_uevent()
217 	return add_uevent_var(env, "vif=%s", be->vif->dev->name);  in netback_uevent()
226 	struct xenvif *vif;  in backend_create_xenvif()  local
228 	if (be->vif != NULL)  in backend_create_xenvif()
237 	vif = xenvif_alloc(&dev->dev, dev->otherend_id, handle);  in backend_create_xenvif()
238 	if (IS_ERR(vif)) {  in backend_create_xenvif()
239 		err = PTR_ERR(vif);  in backend_create_xenvif()
243 	be->vif = vif;  in backend_create_xenvif()
244 	vif->be = be;  in backend_create_xenvif()
252 	struct xenvif *vif = be->vif;  in backend_disconnect()  local
254 	if (vif) {  in backend_disconnect()
255 		unsigned int num_queues = vif->num_queues;  in backend_disconnect()
258 		xen_unregister_watchers(vif);  in backend_disconnect()
260 		xenvif_debugfs_delif(vif);  in backend_disconnect()
262 		xenvif_disconnect_data(vif);  in backend_disconnect()
267 		vif->num_queues = 0;  in backend_disconnect()
271 			xenvif_deinit_queue(&vif->queues[queue_index]);  in backend_disconnect()
273 		vfree(vif->queues);  in backend_disconnect()
274 		vif->queues = NULL;  in backend_disconnect()
276 		xenvif_disconnect_ctrl(vif);  in backend_disconnect()
282 	if (be->vif)  in backend_connect()
399 	struct xenvif *vif = be->vif;  in read_xenbus_frontend_xdp()  local
406 		vif->xdp_headroom = 0;  in read_xenbus_frontend_xdp()
411 	vif->xdp_headroom = headroom;  in read_xenbus_frontend_xdp()
526 	struct xenvif *vif = container_of(watch, struct xenvif, credit_watch);  in xen_net_rate_changed()  local
527 	struct xenbus_device *dev = xenvif_to_xenbus_device(vif);  in xen_net_rate_changed()
533 	for (queue_index = 0; queue_index < vif->num_queues; queue_index++) {  in xen_net_rate_changed()
534 		struct xenvif_queue *queue = &vif->queues[queue_index];  in xen_net_rate_changed()
546 				     struct xenvif *vif)  in xen_register_credit_watch()  argument
552 	if (vif->credit_watch.node)  in xen_register_credit_watch()
559 	vif->credit_watch.node = node;  in xen_register_credit_watch()
560 	vif->credit_watch.will_handle = NULL;  in xen_register_credit_watch()
561 	vif->credit_watch.callback = xen_net_rate_changed;  in xen_register_credit_watch()
562 	err = register_xenbus_watch(&vif->credit_watch);  in xen_register_credit_watch()
564 		pr_err("Failed to set watcher %s\n", vif->credit_watch.node);  in xen_register_credit_watch()
566 		vif->credit_watch.node = NULL;  in xen_register_credit_watch()
567 		vif->credit_watch.will_handle = NULL;  in xen_register_credit_watch()
568 		vif->credit_watch.callback = NULL;  in xen_register_credit_watch()
573 static void xen_unregister_credit_watch(struct xenvif *vif)  in xen_unregister_credit_watch()  argument
575 	if (vif->credit_watch.node) {  in xen_unregister_credit_watch()
576 		unregister_xenbus_watch(&vif->credit_watch);  in xen_unregister_credit_watch()
577 		kfree(vif->credit_watch.node);  in xen_unregister_credit_watch()
578 		vif->credit_watch.node = NULL;  in xen_unregister_credit_watch()
585 	struct xenvif *vif = container_of(watch, struct xenvif,  in xen_mcast_ctrl_changed()  local
587 	struct xenbus_device *dev = xenvif_to_xenbus_device(vif);  in xen_mcast_ctrl_changed()
589 	vif->multicast_control = !!xenbus_read_unsigned(dev->otherend,  in xen_mcast_ctrl_changed()
594 					 struct xenvif *vif)  in xen_register_mcast_ctrl_watch()  argument
601 	if (vif->mcast_ctrl_watch.node) {  in xen_register_mcast_ctrl_watch()
613 	vif->mcast_ctrl_watch.node = node;  in xen_register_mcast_ctrl_watch()
614 	vif->mcast_ctrl_watch.will_handle = NULL;  in xen_register_mcast_ctrl_watch()
615 	vif->mcast_ctrl_watch.callback = xen_mcast_ctrl_changed;  in xen_register_mcast_ctrl_watch()
616 	err = register_xenbus_watch(&vif->mcast_ctrl_watch);  in xen_register_mcast_ctrl_watch()
619 		       vif->mcast_ctrl_watch.node);  in xen_register_mcast_ctrl_watch()
621 		vif->mcast_ctrl_watch.node = NULL;  in xen_register_mcast_ctrl_watch()
622 		vif->mcast_ctrl_watch.will_handle = NULL;  in xen_register_mcast_ctrl_watch()
623 		vif->mcast_ctrl_watch.callback = NULL;  in xen_register_mcast_ctrl_watch()
628 static void xen_unregister_mcast_ctrl_watch(struct xenvif *vif)  in xen_unregister_mcast_ctrl_watch()  argument
630 	if (vif->mcast_ctrl_watch.node) {  in xen_unregister_mcast_ctrl_watch()
631 		unregister_xenbus_watch(&vif->mcast_ctrl_watch);  in xen_unregister_mcast_ctrl_watch()
632 		kfree(vif->mcast_ctrl_watch.node);  in xen_unregister_mcast_ctrl_watch()
633 		vif->mcast_ctrl_watch.node = NULL;  in xen_unregister_mcast_ctrl_watch()
638 				  struct xenvif *vif)  in xen_register_watchers()  argument
640 	xen_register_credit_watch(dev, vif);  in xen_register_watchers()
641 	xen_register_mcast_ctrl_watch(dev, vif);  in xen_register_watchers()
644 static void xen_unregister_watchers(struct xenvif *vif)  in xen_unregister_watchers()  argument
646 	xen_unregister_mcast_ctrl_watch(vif);  in xen_unregister_watchers()
647 	xen_unregister_credit_watch(vif);  in xen_unregister_watchers()
685 	struct xenvif *vif = be->vif;  in connect_ctrl_ring()  local
709 	err = xenvif_connect_ctrl(vif, ring_ref, evtchn);  in connect_ctrl_ring()
746 	err = xen_net_read_mac(dev, be->vif->fe_dev_addr);  in connect()
753 	xen_unregister_watchers(be->vif);  in connect()
754 	xen_register_watchers(dev, be->vif);  in connect()
764 	be->vif->queues = vzalloc(array_size(requested_num_queues,  in connect()
766 	if (!be->vif->queues) {  in connect()
772 	be->vif->num_queues = requested_num_queues;  in connect()
773 	be->vif->stalled_queues = requested_num_queues;  in connect()
776 		queue = &be->vif->queues[queue_index];  in connect()
777 		queue->vif = be->vif;  in connect()
780 				be->vif->dev->name, queue->id);  in connect()
790 			be->vif->num_queues = queue_index;  in connect()
806 			be->vif->num_queues = queue_index;  in connect()
812 	xenvif_debugfs_addif(be->vif);  in connect()
819 	netif_set_real_num_tx_queues(be->vif->dev, requested_num_queues);  in connect()
820 	netif_set_real_num_rx_queues(be->vif->dev, requested_num_queues);  in connect()
823 	xenvif_carrier_on(be->vif);  in connect()
832 	netif_tx_wake_all_queues(be->vif->dev);  in connect()
837 	if (be->vif->num_queues > 0)  in connect()
838 		xenvif_disconnect_data(be->vif); /* Clean up existing queues */  in connect()
839 	for (queue_index = 0; queue_index < be->vif->num_queues; ++queue_index)  in connect()
840 		xenvif_deinit_queue(&be->vif->queues[queue_index]);  in connect()
841 	vfree(be->vif->queues);  in connect()
842 	be->vif->queues = NULL;  in connect()
843 	be->vif->num_queues = 0;  in connect()
844 	xenvif_disconnect_ctrl(be->vif);  in connect()
853 	unsigned int num_queues = queue->vif->num_queues;  in connect_data_rings()
931 	struct xenvif *vif = be->vif;  in read_xenbus_vif_flags()  local
955 		be->vif->drain_timeout = msecs_to_jiffies(30);  in read_xenbus_vif_flags()
956 		be->vif->stall_timeout = 0;  in read_xenbus_vif_flags()
959 	vif->can_sg = !!xenbus_read_unsigned(dev->otherend, "feature-sg", 0);  in read_xenbus_vif_flags()
961 	vif->gso_mask = 0;  in read_xenbus_vif_flags()
964 		vif->gso_mask |= GSO_BIT(TCPV4);  in read_xenbus_vif_flags()
967 		vif->gso_mask |= GSO_BIT(TCPV6);  in read_xenbus_vif_flags()
969 	vif->ip_csum = !xenbus_read_unsigned(dev->otherend,  in read_xenbus_vif_flags()
972 	vif->ipv6_csum = !!xenbus_read_unsigned(dev->otherend,  in read_xenbus_vif_flags()
986 	if (be->vif) {  in netback_remove()
989 		xenvif_free(be->vif);  in netback_remove()
990 		be->vif = NULL;  in netback_remove()
1158 	{ "vif" },