diff options
| author | K. Y. Srinivasan <kys@microsoft.com> | 2012-12-01 06:46:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-17 11:34:37 -0800 |
| commit | eafa7072e7cd806dff42b705284ca26189e527a4 (patch) | |
| tree | c0faadbf1e856339edabe9e750f8a5749c6424cf /include/linux/hyperv.h | |
| parent | 21c3bef5db359596806f19fee6c3ec0c033881d0 (diff) | |
| download | lwn-eafa7072e7cd806dff42b705284ca26189e527a4.tar.gz lwn-eafa7072e7cd806dff42b705284ca26189e527a4.zip | |
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 <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/hyperv.h')
| -rw-r--r-- | include/linux/hyperv.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 134a2022a7a3..e72502689cdc 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -419,6 +419,21 @@ hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi, */ #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) |