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Subject[PATCH 160/206] Staging: hv: Add the contents of vmbus_api.h
Date
The subject line says it all.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Abhishek Kane <v-abkane@microsoft.com>
Signed-off-by: Hank Janssen <hjanssen@microsoft.com>
---
include/linux/hyperv.h | 95 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 95 insertions(+), 0 deletions(-)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index fc05036..3707fcb 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -32,6 +32,36 @@
#include <linux/completion.h>
#include <linux/scatterlist.h>

+#define MAX_PAGE_BUFFER_COUNT 16
+#define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */
+
+#pragma pack(push, 1)
+
+/* Single-page buffer */
+struct hv_page_buffer {
+ u32 len;
+ u32 offset;
+ u64 pfn;
+};
+
+/* Multiple-page buffer */
+struct hv_multipage_buffer {
+ /* Length and Offset determines the # of pfns in the array */
+ u32 len;
+ u32 offset;
+ u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
+};
+
+/* 0x18 includes the proprietary packet header */
+#define MAX_PAGE_BUFFER_PACKET (0x18 + \
+ (sizeof(struct hv_page_buffer) * \
+ MAX_PAGE_BUFFER_COUNT))
+#define MAX_MULTIPAGE_BUFFER_PACKET (0x18 + \
+ sizeof(struct hv_multipage_buffer))
+
+
+#pragma pack(pop)
+
struct hv_ring_buffer {
/* Offset in bytes from the start of ring data below */
u32 write_index;
@@ -726,4 +756,69 @@ extern unsigned int vmbus_loglevel;
*/
#define HV_DRV_VERSION "3.1"

+
+#include <linux/device.h>
+#include <linux/workqueue.h>
+
+
+struct hv_driver;
+struct hv_device;
+
+struct hv_dev_port_info {
+ u32 int_mask;
+ u32 read_idx;
+ u32 write_idx;
+ u32 bytes_avail_toread;
+ u32 bytes_avail_towrite;
+};
+
+struct hv_device_info {
+ u32 chn_id;
+ u32 chn_state;
+ struct hv_guid chn_type;
+ struct hv_guid chn_instance;
+
+ u32 monitor_id;
+ u32 server_monitor_pending;
+ u32 server_monitor_latency;
+ u32 server_monitor_conn_id;
+ u32 client_monitor_pending;
+ u32 client_monitor_latency;
+ u32 client_monitor_conn_id;
+
+ struct hv_dev_port_info inbound;
+ struct hv_dev_port_info outbound;
+};
+
+/* Base driver object */
+struct hv_driver {
+ const char *name;
+
+ /* the device type supported by this driver */
+ struct hv_guid dev_type;
+
+ struct device_driver driver;
+
+ int (*probe)(struct hv_device *);
+ int (*remove)(struct hv_device *);
+ void (*shutdown)(struct hv_device *);
+
+};
+
+/* Base device object */
+struct hv_device {
+ /* the device type id of this device */
+ struct hv_guid dev_type;
+
+ /* the device instance id of this device */
+ struct hv_guid dev_instance;
+
+ struct device device;
+
+ struct vmbus_channel *channel;
+
+ /* Device extension; */
+ void *ext;
+};
+
#endif /* _HYPERV_H_ */
--
1.7.4.1


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