diff options
Diffstat (limited to 'drivers/staging/hv/channel_interface.c')
| -rw-r--r-- | drivers/staging/hv/channel_interface.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/drivers/staging/hv/channel_interface.c b/drivers/staging/hv/channel_interface.c new file mode 100644 index 000000000000..d9f51ac75eaa --- /dev/null +++ b/drivers/staging/hv/channel_interface.c @@ -0,0 +1,152 @@ +/* + * + * 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 IVmbusChannelOpen(struct hv_device *device, u32 SendBufferSize, + u32 RecvRingBufferSize, void *UserData, + u32 UserDataLen, + void (*ChannelCallback)(void *context), + void *Context) +{ + return VmbusChannelOpen(device->context, SendBufferSize, + RecvRingBufferSize, UserData, UserDataLen, + ChannelCallback, Context); +} + +static void IVmbusChannelClose(struct hv_device *device) +{ + VmbusChannelClose(device->context); +} + +static int IVmbusChannelSendPacket(struct hv_device *device, const void *Buffer, + u32 BufferLen, u64 RequestId, u32 Type, + u32 Flags) +{ + return VmbusChannelSendPacket(device->context, Buffer, BufferLen, + RequestId, Type, Flags); +} + +static int IVmbusChannelSendPacketPageBuffer(struct hv_device *device, + struct hv_page_buffer PageBuffers[], + u32 PageCount, void *Buffer, + u32 BufferLen, u64 RequestId) +{ + return VmbusChannelSendPacketPageBuffer(device->context, PageBuffers, + PageCount, Buffer, BufferLen, + RequestId); +} + +static int IVmbusChannelSendPacketMultiPageBuffer(struct hv_device *device, + struct hv_multipage_buffer *MultiPageBuffer, + void *Buffer, u32 BufferLen, u64 RequestId) +{ + return VmbusChannelSendPacketMultiPageBuffer(device->context, + MultiPageBuffer, Buffer, + BufferLen, RequestId); +} + +static int IVmbusChannelRecvPacket(struct hv_device *device, void *Buffer, + u32 BufferLen, u32 *BufferActualLen, + u64 *RequestId) +{ + return VmbusChannelRecvPacket(device->context, Buffer, BufferLen, + BufferActualLen, RequestId); +} + +static int IVmbusChannelRecvPacketRaw(struct hv_device *device, void *Buffer, + u32 BufferLen, u32 *BufferActualLen, + u64 *RequestId) +{ + return VmbusChannelRecvPacketRaw(device->context, Buffer, BufferLen, + BufferActualLen, RequestId); +} + +static int IVmbusChannelEstablishGpadl(struct hv_device *device, void *Buffer, + u32 BufferLen, u32 *GpadlHandle) +{ + return VmbusChannelEstablishGpadl(device->context, Buffer, BufferLen, + GpadlHandle); +} + +static int IVmbusChannelTeardownGpadl(struct hv_device *device, u32 GpadlHandle) +{ + return VmbusChannelTeardownGpadl(device->context, GpadlHandle); + +} + +void GetChannelInterface(struct vmbus_channel_interface *iface) +{ + iface->Open = IVmbusChannelOpen; + iface->Close = IVmbusChannelClose; + iface->SendPacket = IVmbusChannelSendPacket; + iface->SendPacketPageBuffer = IVmbusChannelSendPacketPageBuffer; + iface->SendPacketMultiPageBuffer = + IVmbusChannelSendPacketMultiPageBuffer; + iface->RecvPacket = IVmbusChannelRecvPacket; + iface->RecvPacketRaw = IVmbusChannelRecvPacketRaw; + iface->EstablishGpadl = IVmbusChannelEstablishGpadl; + iface->TeardownGpadl = IVmbusChannelTeardownGpadl; + iface->GetInfo = GetChannelInfo; +} + +void GetChannelInfo(struct hv_device *device, struct hv_device_info *info) +{ + struct vmbus_channel_debug_info debugInfo; + + if (!device->context) + return; + + VmbusChannelGetDebugInfo(device->context, &debugInfo); + + info->ChannelId = debugInfo.RelId; + info->ChannelState = debugInfo.State; + memcpy(&info->ChannelType, &debugInfo.InterfaceType, + sizeof(struct hv_guid)); + memcpy(&info->ChannelInstance, &debugInfo.InterfaceInstance, + sizeof(struct hv_guid)); + + info->MonitorId = debugInfo.MonitorId; + + info->ServerMonitorPending = debugInfo.ServerMonitorPending; + info->ServerMonitorLatency = debugInfo.ServerMonitorLatency; + info->ServerMonitorConnectionId = debugInfo.ServerMonitorConnectionId; + + info->ClientMonitorPending = debugInfo.ClientMonitorPending; + info->ClientMonitorLatency = debugInfo.ClientMonitorLatency; + info->ClientMonitorConnectionId = debugInfo.ClientMonitorConnectionId; + + info->Inbound.InterruptMask = debugInfo.Inbound.CurrentInterruptMask; + info->Inbound.ReadIndex = debugInfo.Inbound.CurrentReadIndex; + info->Inbound.WriteIndex = debugInfo.Inbound.CurrentWriteIndex; + info->Inbound.BytesAvailToRead = debugInfo.Inbound.BytesAvailToRead; + info->Inbound.BytesAvailToWrite = debugInfo.Inbound.BytesAvailToWrite; + + info->Outbound.InterruptMask = debugInfo.Outbound.CurrentInterruptMask; + info->Outbound.ReadIndex = debugInfo.Outbound.CurrentReadIndex; + info->Outbound.WriteIndex = debugInfo.Outbound.CurrentWriteIndex; + info->Outbound.BytesAvailToRead = debugInfo.Outbound.BytesAvailToRead; + info->Outbound.BytesAvailToWrite = debugInfo.Outbound.BytesAvailToWrite; +} |