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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