[PATCH 179/206] Staging: hv: Include the contents of utils.h

[K. Y. Srinivasan]

The subject line says it all.

Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
Signed-off-by: Abhishek Kane <v-abkane@xxxxxxxxxxxxx>
Signed-off-by: Hank Janssen <hjanssen@xxxxxxxxxxxxx>
---
 include/linux/hyperv.h |   98 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 97 insertions(+), 1 deletions(-)

diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 81f8742..e6bf39f 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -842,4 +842,100 @@ void vmbus_child_driver_unregister(struct device_driver *drv);
 extern struct completion hv_channel_ready;
 
 
-#endif /* _HYPERV_H_ */
+/*
+ * Common header for Hyper-V ICs
+ */
+#define ICMSGTYPE_NEGOTIATE		0
+#define ICMSGTYPE_HEARTBEAT		1
+#define ICMSGTYPE_KVPEXCHANGE		2
+#define ICMSGTYPE_SHUTDOWN		3
+#define ICMSGTYPE_TIMESYNC		4
+#define ICMSGTYPE_VSS			5
+
+#define ICMSGHDRFLAG_TRANSACTION	1
+#define ICMSGHDRFLAG_REQUEST		2
+#define ICMSGHDRFLAG_RESPONSE		4
+
+#define HV_S_OK				0x00000000
+#define HV_E_FAIL			0x80004005
+#define HV_ERROR_NOT_SUPPORTED		0x80070032
+#define HV_ERROR_MACHINE_LOCKED		0x800704F7
+
+struct vmbuspipe_hdr {
+	u32 flags;
+	u32 msgsize;
+} __packed;
+
+struct ic_version {
+	u16 major;
+	u16 minor;
+} __packed;
+
+struct icmsg_hdr {
+	struct ic_version icverframe;
+	u16 icmsgtype;
+	struct ic_version icvermsg;
+	u16 icmsgsize;
+	u32 status;
+	u8 ictransaction_id;
+	u8 icflags;
+	u8 reserved[2];
+} __packed;
+
+struct icmsg_negotiate {
+	u16 icframe_vercnt;
+	u16 icmsg_vercnt;
+	u32 reserved;
+	struct ic_version icversion_data[1]; /* any size array */
+} __packed;
+
+struct shutdown_msg_data {
+	u32 reason_code;
+	u32 timeout_seconds;
+	u32 flags;
+	u8  display_message[2048];
+} __packed;
+
+struct heartbeat_msg_data {
+	u64 seq_num;
+	u32 reserved[8];
+} __packed;
+
+/* Time Sync IC defs */
+#define ICTIMESYNCFLAG_PROBE	0
+#define ICTIMESYNCFLAG_SYNC	1
+#define ICTIMESYNCFLAG_SAMPLE	2
+
+#ifdef __x86_64__
+#define WLTIMEDELTA	116444736000000000L	/* in 100ns unit */
+#else
+#define WLTIMEDELTA	116444736000000000LL
+#endif
+
+struct ictimesync_data {
+	u64 parenttime;
+	u64 childtime;
+	u64 roundtriptime;
+	u8 flags;
+} __packed;
+
+/* Index for each IC struct in array hv_cb_utils[] */
+#define HV_SHUTDOWN_MSG		0
+#define HV_TIMESYNC_MSG		1
+#define HV_HEARTBEAT_MSG	2
+#define HV_KVP_MSG		3
+
+struct hyperv_service_callback {
+	u8 msg_type;
+	char *log_msg;
+	unsigned char data[16];
+	struct vmbus_channel *channel;
+	void (*callback) (void *context);
+};
+
+extern void prep_negotiate_resp(struct icmsg_hdr *,
+				struct icmsg_negotiate *, u8 *);
+extern void chn_cb_negotiate(void *);
+extern struct hyperv_service_callback hv_cb_utils[];
+
+#endif /* _HYPERV_H */
-- 
1.7.4.1

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