27 struct vmbus_connection vmbus_connection = {  variable
32 				  vmbus_connection.ready_for_suspend_event),
34 				  vmbus_connection.ready_for_resume_event),
36 EXPORT_SYMBOL_GPL(vmbus_connection);
96 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID_4;  in vmbus_negotiate_version()
98 		msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);  in vmbus_negotiate_version()
99 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID;  in vmbus_negotiate_version()
102 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);  in vmbus_negotiate_version()
103 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);  in vmbus_negotiate_version()
110 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
112 		      &vmbus_connection.chn_msg_list);  in vmbus_negotiate_version()
114 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
123 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
125 		spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,  in vmbus_negotiate_version()
133 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
135 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
139 		vmbus_connection.conn_state = CONNECTED;  in vmbus_negotiate_version()
142 			vmbus_connection.msg_conn_id =  in vmbus_negotiate_version()
161 	vmbus_connection.conn_state = CONNECTING;  in vmbus_connect()
162 	vmbus_connection.work_queue = create_workqueue("hv_vmbus_con");  in vmbus_connect()
163 	if (!vmbus_connection.work_queue) {  in vmbus_connect()
168 	vmbus_connection.handle_primary_chan_wq =  in vmbus_connect()
170 	if (!vmbus_connection.handle_primary_chan_wq) {  in vmbus_connect()
175 	vmbus_connection.handle_sub_chan_wq =  in vmbus_connect()
177 	if (!vmbus_connection.handle_sub_chan_wq) {  in vmbus_connect()
182 	INIT_LIST_HEAD(&vmbus_connection.chn_msg_list);  in vmbus_connect()
183 	spin_lock_init(&vmbus_connection.channelmsg_lock);  in vmbus_connect()
185 	INIT_LIST_HEAD(&vmbus_connection.chn_list);  in vmbus_connect()
186 	mutex_init(&vmbus_connection.channel_mutex);  in vmbus_connect()
192 	vmbus_connection.int_page =  in vmbus_connect()
194 	if (vmbus_connection.int_page == NULL) {  in vmbus_connect()
199 	vmbus_connection.recv_int_page = vmbus_connection.int_page;  in vmbus_connect()
200 	vmbus_connection.send_int_page =  in vmbus_connect()
201 		(void *)((unsigned long)vmbus_connection.int_page +  in vmbus_connect()
208 	vmbus_connection.monitor_pages[0] = (void *)hv_alloc_hyperv_zeroed_page();  in vmbus_connect()
209 	vmbus_connection.monitor_pages[1] = (void *)hv_alloc_hyperv_zeroed_page();  in vmbus_connect()
210 	if ((vmbus_connection.monitor_pages[0] == NULL) ||  in vmbus_connect()
211 	    (vmbus_connection.monitor_pages[1] == NULL)) {  in vmbus_connect()
245 		if (vmbus_connection.conn_state == CONNECTED)  in vmbus_connect()
253 	vmbus_connection.channels = kcalloc(MAX_CHANNEL_RELIDS,  in vmbus_connect()
256 	if (vmbus_connection.channels == NULL) {  in vmbus_connect()
267 	vmbus_connection.conn_state = DISCONNECTED;  in vmbus_connect()
282 	if (vmbus_connection.handle_sub_chan_wq)  in vmbus_disconnect()
283 		destroy_workqueue(vmbus_connection.handle_sub_chan_wq);  in vmbus_disconnect()
285 	if (vmbus_connection.handle_primary_chan_wq)  in vmbus_disconnect()
286 		destroy_workqueue(vmbus_connection.handle_primary_chan_wq);  in vmbus_disconnect()
288 	if (vmbus_connection.work_queue)  in vmbus_disconnect()
289 		destroy_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
291 	if (vmbus_connection.int_page) {  in vmbus_disconnect()
292 		hv_free_hyperv_page((unsigned long)vmbus_connection.int_page);  in vmbus_disconnect()
293 		vmbus_connection.int_page = NULL;  in vmbus_disconnect()
296 	hv_free_hyperv_page((unsigned long)vmbus_connection.monitor_pages[0]);  in vmbus_disconnect()
297 	hv_free_hyperv_page((unsigned long)vmbus_connection.monitor_pages[1]);  in vmbus_disconnect()
298 	vmbus_connection.monitor_pages[0] = NULL;  in vmbus_disconnect()
299 	vmbus_connection.monitor_pages[1] = NULL;  in vmbus_disconnect()
310 	return READ_ONCE(vmbus_connection.channels[relid]);  in relid2channel()
373 	conn_id.u.id = vmbus_connection.msg_conn_id;  in vmbus_post_msg()