ca623ad355
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
/*
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*
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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*
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*/
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#ifndef _VMBUS_API_H_
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#define _VMBUS_API_H_
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#define MAX_PAGE_BUFFER_COUNT 16
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#define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */
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#pragma pack(push, 1)
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/* Single-page buffer */
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struct hv_page_buffer {
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u32 len;
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u32 offset;
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u64 pfn;
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};
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/* Multiple-page buffer */
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struct hv_multipage_buffer {
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/* Length and Offset determines the # of pfns in the array */
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u32 len;
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u32 offset;
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u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
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};
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/* 0x18 includes the proprietary packet header */
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#define MAX_PAGE_BUFFER_PACKET (0x18 + \
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(sizeof(struct hv_page_buffer) * \
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MAX_PAGE_BUFFER_COUNT))
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#define MAX_MULTIPAGE_BUFFER_PACKET (0x18 + \
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sizeof(struct hv_multipage_buffer))
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#pragma pack(pop)
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struct hv_driver;
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struct hv_device;
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struct hv_dev_port_info {
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u32 int_mask;
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u32 read_idx;
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u32 write_idx;
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u32 bytes_avail_toread;
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u32 bytes_avail_towrite;
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};
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struct hv_device_info {
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u32 chn_id;
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u32 chn_state;
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struct hv_guid chn_type;
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struct hv_guid chn_instance;
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u32 monitor_id;
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u32 server_monitor_pending;
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u32 server_monitor_latency;
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u32 server_monitor_conn_id;
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u32 client_monitor_pending;
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u32 client_monitor_latency;
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u32 client_monitor_conn_id;
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struct hv_dev_port_info inbound;
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struct hv_dev_port_info outbound;
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};
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/* Base driver object */
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struct hv_driver {
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const char *name;
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/* the device type supported by this driver */
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struct hv_guid dev_type;
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int (*dev_add)(struct hv_device *device, void *data);
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int (*dev_rm)(struct hv_device *device);
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void (*cleanup)(struct hv_driver *driver);
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};
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/* Base device object */
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struct hv_device {
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/* the driver for this device */
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struct hv_driver *drv;
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char name[64];
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/* the device type id of this device */
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struct hv_guid dev_type;
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/* the device instance id of this device */
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struct hv_guid dev_instance;
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struct vmbus_channel *channel;
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/* Device extension; */
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void *ext;
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};
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#endif /* _VMBUS_API_H_ */
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