39 struct vmbus_connection vmbus_connection = {  variable
43 EXPORT_SYMBOL_GPL(vmbus_connection);
104 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID_4;  in vmbus_negotiate_version()
106 		msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);  in vmbus_negotiate_version()
107 		vmbus_connection.msg_conn_id = VMBUS_MESSAGE_CONNECTION_ID;  in vmbus_negotiate_version()
110 	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);  in vmbus_negotiate_version()
111 	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);  in vmbus_negotiate_version()
124 		vmbus_connection.connect_cpu = cur_cpu;  in vmbus_negotiate_version()
128 		vmbus_connection.connect_cpu = 0;  in vmbus_negotiate_version()
135 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
137 		      &vmbus_connection.chn_msg_list);  in vmbus_negotiate_version()
139 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
148 		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
150 		spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock,  in vmbus_negotiate_version()
158 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
160 	spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags);  in vmbus_negotiate_version()
164 		vmbus_connection.conn_state = CONNECTED;  in vmbus_negotiate_version()
167 			vmbus_connection.msg_conn_id =  in vmbus_negotiate_version()
186 	vmbus_connection.conn_state = CONNECTING;  in vmbus_connect()
187 	vmbus_connection.work_queue = create_workqueue("hv_vmbus_con");  in vmbus_connect()
188 	if (!vmbus_connection.work_queue) {  in vmbus_connect()
193 	INIT_LIST_HEAD(&vmbus_connection.chn_msg_list);  in vmbus_connect()
194 	spin_lock_init(&vmbus_connection.channelmsg_lock);  in vmbus_connect()
196 	INIT_LIST_HEAD(&vmbus_connection.chn_list);  in vmbus_connect()
197 	mutex_init(&vmbus_connection.channel_mutex);  in vmbus_connect()
203 	vmbus_connection.int_page =  in vmbus_connect()
205 	if (vmbus_connection.int_page == NULL) {  in vmbus_connect()
210 	vmbus_connection.recv_int_page = vmbus_connection.int_page;  in vmbus_connect()
211 	vmbus_connection.send_int_page =  in vmbus_connect()
212 		(void *)((unsigned long)vmbus_connection.int_page +  in vmbus_connect()
219 	vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
220 	vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);  in vmbus_connect()
221 	if ((vmbus_connection.monitor_pages[0] == NULL) ||  in vmbus_connect()
222 	    (vmbus_connection.monitor_pages[1] == NULL)) {  in vmbus_connect()
249 		if (vmbus_connection.conn_state == CONNECTED)  in vmbus_connect()
268 	vmbus_connection.conn_state = DISCONNECTED;  in vmbus_connect()
283 	if (vmbus_connection.work_queue) {  in vmbus_disconnect()
284 		drain_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
285 		destroy_workqueue(vmbus_connection.work_queue);  in vmbus_disconnect()
288 	if (vmbus_connection.int_page) {  in vmbus_disconnect()
289 		free_pages((unsigned long)vmbus_connection.int_page, 0);  in vmbus_disconnect()
290 		vmbus_connection.int_page = NULL;  in vmbus_disconnect()
293 	free_pages((unsigned long)vmbus_connection.monitor_pages[0], 0);  in vmbus_disconnect()
294 	free_pages((unsigned long)vmbus_connection.monitor_pages[1], 0);  in vmbus_disconnect()
295 	vmbus_connection.monitor_pages[0] = NULL;  in vmbus_disconnect()
296 	vmbus_connection.monitor_pages[1] = NULL;  in vmbus_disconnect()
310 	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));  in relid2channel()
312 	list_for_each_entry(channel, &vmbus_connection.chn_list, listentry) {  in relid2channel()
393 	conn_id.u.id = vmbus_connection.msg_conn_id;  in vmbus_post_msg()