Drivers: hv: Move vmbus version definitions to hyperv.h
To support version specific optimization in various vmbus drivers,
move the vmbus definitions to the public header file.
Signed-off-by: K. Y. Srinivasan <[email protected]>
Reviewed-by: Haiyang Zhang <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 134a202..e725026 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -419,6 +419,21 @@
*/
#define HV_DRV_VERSION "3.1"
+/*
+ * VMBUS version is 32 bit entity broken up into
+ * two 16 bit quantities: major_number. minor_number.
+ *
+ * 0 . 13 (Windows Server 2008)
+ * 1 . 1 (Windows 7)
+ * 2 . 4 (Windows 8)
+ */
+
+#define VERSION_WS2008 ((0 << 16) | (13))
+#define VERSION_WIN7 ((1 << 16) | (1))
+#define VERSION_WIN8 ((2 << 16) | (4))
+
+#define VERSION_INVAL -1
+
/* Make maximum size of pipe payload of 16K */
#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
