hv: run non-blocking message handlers in the dispatch tasklet

[linux.git] / drivers / hv / hyperv_vmbus.h

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index c8e27e0fdc99744d6552a220a5b32056219017cb..f40a5a935ab69faa2536628e45a68de40e20cdc3 100644 (file)
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -685,6 +685,23 @@ struct vmbus_msginfo {
 
 extern struct vmbus_connection vmbus_connection;
 
+enum vmbus_message_handler_type {
+       /* The related handler can sleep. */
+       VMHT_BLOCKING = 0,
+
+       /* The related handler must NOT sleep. */
+       VMHT_NON_BLOCKING = 1,
+};
+
+struct vmbus_channel_message_table_entry {
+       enum vmbus_channel_message_type message_type;
+       enum vmbus_message_handler_type handler_type;
+       void (*message_handler)(struct vmbus_channel_message_header *msg);
+};
+
+extern struct vmbus_channel_message_table_entry
+       channel_message_table[CHANNELMSG_COUNT];
+
 /* General vmbus interface */
 
 struct hv_device *vmbus_device_create(const uuid_le *type,