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/*
*
* Copyright (c) 2009, Microsoft Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
*
* Authors:
* Haiyang Zhang <haiyangz@microsoft.com>
* Hank Janssen <hjanssen@microsoft.com>
*
*/
#include <linux/kernel.h>
#include <linux/mm.h>
#include "osd.h"
#include "vmbus_private.h"
static int ivmbus_open(struct hv_device *device, u32 sendbuffer_size,
u32 recv_ringbuffer_size, void *userdata,
u32 userdatalen,
void (*channel_callback)(void *context),
void *context)
{
return vmbus_open(device->context, sendbuffer_size,
recv_ringbuffer_size, userdata, userdatalen,
channel_callback, context);
}
static void ivmbus_close(struct hv_device *device)
{
vmbus_close(device->context);
}
static int ivmbus_sendpacket(struct hv_device *device, const void *buffer,
u32 bufferlen, u64 requestid, u32 type,
u32 flags)
{
return vmbus_sendpacket(device->context, buffer, bufferlen,
requestid, type, flags);
}
static int ivmbus_sendpacket_pagebuffer(struct hv_device *device,
struct hv_page_buffer pagebuffers[],
u32 pagecount, void *buffer,
u32 bufferlen, u64 requestid)
{
return vmbus_sendpacket_pagebuffer(device->context, pagebuffers,
pagecount, buffer, bufferlen,
requestid);
}
static int ivmbus_sendpacket_multipagebuffer(struct hv_device *device,
struct hv_multipage_buffer *multi_pagebuffer,
void *buffer, u32 bufferlen, u64 requestid)
{
return vmbus_sendpacket_multipagebuffer(device->context,
multi_pagebuffer, buffer,
bufferlen, requestid);
}
static int ivmbus_recvpacket(struct hv_device *device, void *buffer,
u32 bufferlen, u32 *buffer_actuallen,
u64 *requestid)
{
return vmbus_recvpacket(device->context, buffer, bufferlen,
buffer_actuallen, requestid);
}
static int ivmbus_recvpacket_raw(struct hv_device *device, void *buffer,
u32 bufferlen, u32 *buffer_actuallen,
u64 *requestid)
{
return vmbus_recvpacket_raw(device->context, buffer, bufferlen,
buffer_actuallen, requestid);
}
static int ivmbus_establish_gpadl(struct hv_device *device, void *buffer,
u32 bufferlen, u32 *gpadl_handle)
{
return vmbus_establish_gpadl(device->context, buffer, bufferlen,
gpadl_handle);
}
static int ivmbus_teardown_gpadl(struct hv_device *device,
u32 gpadl_handle)
{
return vmbus_teardown_gpadl(device->context, gpadl_handle);
}
void get_channel_info(struct hv_device *device, struct hv_device_info *info)
{
struct vmbus_channel_debug_info debug_info;
if (!device->context)
return;
vmbus_get_debug_info(device->context, &debug_info);
info->ChannelId = debug_info.RelId;
info->ChannelState = debug_info.State;
memcpy(&info->ChannelType, &debug_info.InterfaceType,
sizeof(struct hv_guid));
memcpy(&info->ChannelInstance, &debug_info.InterfaceInstance,
sizeof(struct hv_guid));
info->MonitorId = debug_info.MonitorId;
info->ServerMonitorPending = debug_info.ServerMonitorPending;
info->ServerMonitorLatency = debug_info.ServerMonitorLatency;
info->ServerMonitorConnectionId = debug_info.ServerMonitorConnectionId;
info->ClientMonitorPending = debug_info.ClientMonitorPending;
info->ClientMonitorLatency = debug_info.ClientMonitorLatency;
info->ClientMonitorConnectionId = debug_info.ClientMonitorConnectionId;
info->Inbound.InterruptMask = debug_info.Inbound.CurrentInterruptMask;
info->Inbound.ReadIndex = debug_info.Inbound.CurrentReadIndex;
info->Inbound.WriteIndex = debug_info.Inbound.CurrentWriteIndex;
info->Inbound.BytesAvailToRead = debug_info.Inbound.BytesAvailToRead;
info->Inbound.BytesAvailToWrite = debug_info.Inbound.BytesAvailToWrite;
info->Outbound.InterruptMask = debug_info.Outbound.CurrentInterruptMask;
info->Outbound.ReadIndex = debug_info.Outbound.CurrentReadIndex;
info->Outbound.WriteIndex = debug_info.Outbound.CurrentWriteIndex;
info->Outbound.BytesAvailToRead = debug_info.Outbound.BytesAvailToRead;
info->Outbound.BytesAvailToWrite =
debug_info.Outbound.BytesAvailToWrite;
}
/* vmbus interface function pointer table */
const struct vmbus_channel_interface vmbus_ops = {
.Open = ivmbus_open,
.Close = ivmbus_close,
.SendPacket = ivmbus_sendpacket,
.SendPacketPageBuffer = ivmbus_sendpacket_pagebuffer,
.SendPacketMultiPageBuffer = ivmbus_sendpacket_multipagebuffer,
.RecvPacket = ivmbus_recvpacket,
.RecvPacketRaw = ivmbus_recvpacket_raw,
.EstablishGpadl = ivmbus_establish_gpadl,
.TeardownGpadl = ivmbus_teardown_gpadl,
.GetInfo = get_channel_info,
};
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