73 int xenvif_schedulable(struct xenvif *vif)  in xenvif_schedulable()  argument
75 	return netif_running(vif->dev) &&  in xenvif_schedulable()
76 		test_bit(VIF_STATUS_CONNECTED, &vif->status) &&  in xenvif_schedulable()
77 		!vif->disabled;  in xenvif_schedulable()
100 	if (unlikely(queue->vif->disabled)) {  in xenvif_poll()
138 	struct net_device *dev = queue->vif->dev;  in xenvif_queue_stopped()
145 	struct net_device *dev = queue->vif->dev;  in xenvif_wake_queue()
154 	struct xenvif *vif = netdev_priv(dev);  in xenvif_select_queue()  local
155 	unsigned int size = vif->hash.size;  in xenvif_select_queue()
157 	if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)  in xenvif_select_queue()
160 	xenvif_set_skb_hash(vif, skb);  in xenvif_select_queue()
165 	return vif->hash.mapping[vif->hash.mapping_sel]  in xenvif_select_queue()
171 	struct xenvif *vif = netdev_priv(dev);  in xenvif_start_xmit()  local
183 	num_queues = READ_ONCE(vif->num_queues);  in xenvif_start_xmit()
191 				    index, vif->dev->name);  in xenvif_start_xmit()
194 	queue = &vif->queues[index];  in xenvif_start_xmit()
199 	    !xenvif_schedulable(vif))  in xenvif_start_xmit()
202 	if (vif->multicast_control && skb->pkt_type == PACKET_MULTICAST) {  in xenvif_start_xmit()
205 		if (!xenvif_mcast_match(vif, eth->h_dest))  in xenvif_start_xmit()
210 	cb->expires = jiffies + vif->drain_timeout;  in xenvif_start_xmit()
216 	if (vif->hash.alg == XEN_NETIF_CTRL_HASH_ALGORITHM_NONE)  in xenvif_start_xmit()
225 	vif->dev->stats.tx_dropped++;  in xenvif_start_xmit()
232 	struct xenvif *vif = netdev_priv(dev);  in xenvif_get_stats()  local
242 	num_queues = READ_ONCE(vif->num_queues);  in xenvif_get_stats()
246 		queue = &vif->queues[index];  in xenvif_get_stats()
255 	vif->dev->stats.rx_bytes = rx_bytes;  in xenvif_get_stats()
256 	vif->dev->stats.rx_packets = rx_packets;  in xenvif_get_stats()
257 	vif->dev->stats.tx_bytes = tx_bytes;  in xenvif_get_stats()
258 	vif->dev->stats.tx_packets = tx_packets;  in xenvif_get_stats()
260 	return &vif->dev->stats;  in xenvif_get_stats()
263 static void xenvif_up(struct xenvif *vif)  in xenvif_up()  argument
266 	unsigned int num_queues = vif->num_queues;  in xenvif_up()
270 		queue = &vif->queues[queue_index];  in xenvif_up()
279 static void xenvif_down(struct xenvif *vif)  in xenvif_down()  argument
282 	unsigned int num_queues = vif->num_queues;  in xenvif_down()
286 		queue = &vif->queues[queue_index];  in xenvif_down()
297 	struct xenvif *vif = netdev_priv(dev);  in xenvif_open()  local
298 	if (test_bit(VIF_STATUS_CONNECTED, &vif->status))  in xenvif_open()
299 		xenvif_up(vif);  in xenvif_open()
306 	struct xenvif *vif = netdev_priv(dev);  in xenvif_close()  local
307 	if (test_bit(VIF_STATUS_CONNECTED, &vif->status))  in xenvif_close()
308 		xenvif_down(vif);  in xenvif_close()
315 	struct xenvif *vif = netdev_priv(dev);  in xenvif_change_mtu()  local
316 	int max = vif->can_sg ? ETH_MAX_MTU - VLAN_ETH_HLEN : ETH_DATA_LEN;  in xenvif_change_mtu()
327 	struct xenvif *vif = netdev_priv(dev);  in xenvif_fix_features()  local
329 	if (!vif->can_sg)  in xenvif_fix_features()
331 	if (~(vif->gso_mask) & GSO_BIT(TCPV4))  in xenvif_fix_features()
333 	if (~(vif->gso_mask) & GSO_BIT(TCPV6))  in xenvif_fix_features()
335 	if (!vif->ip_csum)  in xenvif_fix_features()
337 	if (!vif->ipv6_csum)  in xenvif_fix_features()
388 	struct xenvif *vif = netdev_priv(dev);  in xenvif_get_ethtool_stats()  local
394 	num_queues = READ_ONCE(vif->num_queues);  in xenvif_get_ethtool_stats()
399 			void *vif_stats = &vif->queues[queue_index].stats;  in xenvif_get_ethtool_stats()
446 	struct xenvif *vif;  in xenvif_alloc()  local
463 	vif = netdev_priv(dev);  in xenvif_alloc()
465 	vif->domid  = domid;  in xenvif_alloc()
466 	vif->handle = handle;  in xenvif_alloc()
467 	vif->can_sg = 1;  in xenvif_alloc()
468 	vif->ip_csum = 1;  in xenvif_alloc()
469 	vif->dev = dev;  in xenvif_alloc()
470 	vif->disabled = false;  in xenvif_alloc()
471 	vif->drain_timeout = msecs_to_jiffies(rx_drain_timeout_msecs);  in xenvif_alloc()
472 	vif->stall_timeout = msecs_to_jiffies(rx_stall_timeout_msecs);  in xenvif_alloc()
475 	vif->queues = NULL;  in xenvif_alloc()
476 	vif->num_queues = 0;  in xenvif_alloc()
478 	spin_lock_init(&vif->lock);  in xenvif_alloc()
479 	INIT_LIST_HEAD(&vif->fe_mcast_addr);  in xenvif_alloc()
515 	return vif;  in xenvif_alloc()
547 		netdev_err(queue->vif->dev, "Could not reserve mmap_pages\n");  in xenvif_init_queue()
562 void xenvif_carrier_on(struct xenvif *vif)  in xenvif_carrier_on()  argument
565 	if (!vif->can_sg && vif->dev->mtu > ETH_DATA_LEN)  in xenvif_carrier_on()
566 		dev_set_mtu(vif->dev, ETH_DATA_LEN);  in xenvif_carrier_on()
567 	netdev_update_features(vif->dev);  in xenvif_carrier_on()
568 	set_bit(VIF_STATUS_CONNECTED, &vif->status);  in xenvif_carrier_on()
569 	if (netif_running(vif->dev))  in xenvif_carrier_on()
570 		xenvif_up(vif);  in xenvif_carrier_on()
574 int xenvif_connect_ctrl(struct xenvif *vif, grant_ref_t ring_ref,  in xenvif_connect_ctrl()  argument
577 	struct net_device *dev = vif->dev;  in xenvif_connect_ctrl()
582 	err = xenbus_map_ring_valloc(xenvif_to_xenbus_device(vif),  in xenvif_connect_ctrl()
588 	BACK_RING_INIT(&vif->ctrl, shared, XEN_PAGE_SIZE);  in xenvif_connect_ctrl()
590 	err = bind_interdomain_evtchn_to_irq(vif->domid, evtchn);  in xenvif_connect_ctrl()
594 	vif->ctrl_irq = err;  in xenvif_connect_ctrl()
596 	xenvif_init_hash(vif);  in xenvif_connect_ctrl()
598 	err = request_threaded_irq(vif->ctrl_irq, NULL, xenvif_ctrl_irq_fn,  in xenvif_connect_ctrl()
599 				   IRQF_ONESHOT, "xen-netback-ctrl", vif);  in xenvif_connect_ctrl()
608 	xenvif_deinit_hash(vif);  in xenvif_connect_ctrl()
609 	unbind_from_irqhandler(vif->ctrl_irq, vif);  in xenvif_connect_ctrl()
610 	vif->ctrl_irq = 0;  in xenvif_connect_ctrl()
613 	xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(vif),  in xenvif_connect_ctrl()
614 				vif->ctrl.sring);  in xenvif_connect_ctrl()
615 	vif->ctrl.sring = NULL;  in xenvif_connect_ctrl()
643 	netif_napi_add(queue->vif->dev, &queue->napi, xenvif_poll,  in xenvif_connect_data()
649 			queue->vif->domid, tx_evtchn, xenvif_interrupt, 0,  in xenvif_connect_data()
660 			queue->vif->domid, tx_evtchn, xenvif_tx_interrupt, 0,  in xenvif_connect_data()
670 			queue->vif->domid, rx_evtchn, xenvif_rx_interrupt, 0,  in xenvif_connect_data()
718 void xenvif_carrier_off(struct xenvif *vif)  in xenvif_carrier_off()  argument
720 	struct net_device *dev = vif->dev;  in xenvif_carrier_off()
723 	if (test_and_clear_bit(VIF_STATUS_CONNECTED, &vif->status)) {  in xenvif_carrier_off()
726 			xenvif_down(vif);  in xenvif_carrier_off()
731 void xenvif_disconnect_data(struct xenvif *vif)  in xenvif_disconnect_data()  argument
734 	unsigned int num_queues = vif->num_queues;  in xenvif_disconnect_data()
737 	xenvif_carrier_off(vif);  in xenvif_disconnect_data()
740 		queue = &vif->queues[queue_index];  in xenvif_disconnect_data()
768 	xenvif_mcast_addr_list_free(vif);  in xenvif_disconnect_data()
771 void xenvif_disconnect_ctrl(struct xenvif *vif)  in xenvif_disconnect_ctrl()  argument
773 	if (vif->ctrl_irq) {  in xenvif_disconnect_ctrl()
774 		xenvif_deinit_hash(vif);  in xenvif_disconnect_ctrl()
775 		unbind_from_irqhandler(vif->ctrl_irq, vif);  in xenvif_disconnect_ctrl()
776 		vif->ctrl_irq = 0;  in xenvif_disconnect_ctrl()
779 	if (vif->ctrl.sring) {  in xenvif_disconnect_ctrl()
780 		xenbus_unmap_ring_vfree(xenvif_to_xenbus_device(vif),  in xenvif_disconnect_ctrl()
781 					vif->ctrl.sring);  in xenvif_disconnect_ctrl()
782 		vif->ctrl.sring = NULL;  in xenvif_disconnect_ctrl()
795 void xenvif_free(struct xenvif *vif)  in xenvif_free()  argument
797 	struct xenvif_queue *queues = vif->queues;  in xenvif_free()
798 	unsigned int num_queues = vif->num_queues;  in xenvif_free()
801 	unregister_netdev(vif->dev);  in xenvif_free()
802 	free_netdev(vif->dev);  in xenvif_free()