Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 1 | /* |
| 2 | * |
| 3 | * Copyright (c) 2009, Microsoft Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 16 | * Place - Suite 330, Boston, MA 02111-1307 USA. |
| 17 | * |
| 18 | * Authors: |
| 19 | * Haiyang Zhang <haiyangz@microsoft.com> |
| 20 | * Hank Janssen <hjanssen@microsoft.com> |
| 21 | * |
| 22 | */ |
Greg Kroah-Hartman | a0086dc | 2009-08-17 17:22:08 -0700 | [diff] [blame] | 23 | #include <linux/kernel.h> |
| 24 | #include <linux/mm.h> |
Greg Kroah-Hartman | 4983b39 | 2009-08-19 16:14:47 -0700 | [diff] [blame] | 25 | #include "osd.h" |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 26 | #include "VmbusPrivate.h" |
| 27 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 28 | static int IVmbusChannelOpen(struct hv_device *device, u32 SendBufferSize, |
| 29 | u32 RecvRingBufferSize, void *UserData, |
| 30 | u32 UserDataLen, |
Greg Kroah-Hartman | 7498261 | 2009-09-02 11:18:10 -0700 | [diff] [blame] | 31 | void (*ChannelCallback)(void *context), |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 32 | void *Context) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 33 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 34 | return VmbusChannelOpen(device->context, SendBufferSize, |
| 35 | RecvRingBufferSize, UserData, UserDataLen, |
| 36 | ChannelCallback, Context); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 37 | } |
| 38 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 39 | static void IVmbusChannelClose(struct hv_device *device) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 40 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 41 | VmbusChannelClose(device->context); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 42 | } |
| 43 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 44 | static int IVmbusChannelSendPacket(struct hv_device *device, const void *Buffer, |
| 45 | u32 BufferLen, u64 RequestId, u32 Type, |
| 46 | u32 Flags) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 47 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 48 | return VmbusChannelSendPacket(device->context, Buffer, BufferLen, |
| 49 | RequestId, Type, Flags); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 50 | } |
| 51 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 52 | static int IVmbusChannelSendPacketPageBuffer(struct hv_device *device, |
| 53 | struct hv_page_buffer PageBuffers[], |
| 54 | u32 PageCount, void *Buffer, |
| 55 | u32 BufferLen, u64 RequestId) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 56 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 57 | return VmbusChannelSendPacketPageBuffer(device->context, PageBuffers, |
| 58 | PageCount, Buffer, BufferLen, |
| 59 | RequestId); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 60 | } |
| 61 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 62 | static int IVmbusChannelSendPacketMultiPageBuffer(struct hv_device *device, |
| 63 | struct hv_multipage_buffer *MultiPageBuffer, |
| 64 | void *Buffer, u32 BufferLen, u64 RequestId) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 65 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 66 | return VmbusChannelSendPacketMultiPageBuffer(device->context, |
| 67 | MultiPageBuffer, Buffer, |
| 68 | BufferLen, RequestId); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 69 | } |
| 70 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 71 | static int IVmbusChannelRecvPacket(struct hv_device *device, void *Buffer, |
| 72 | u32 BufferLen, u32 *BufferActualLen, |
| 73 | u64 *RequestId) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 74 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 75 | return VmbusChannelRecvPacket(device->context, Buffer, BufferLen, |
| 76 | BufferActualLen, RequestId); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 77 | } |
| 78 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 79 | static int IVmbusChannelRecvPacketRaw(struct hv_device *device, void *Buffer, |
| 80 | u32 BufferLen, u32 *BufferActualLen, |
| 81 | u64 *RequestId) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 82 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 83 | return VmbusChannelRecvPacketRaw(device->context, Buffer, BufferLen, |
| 84 | BufferActualLen, RequestId); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 85 | } |
| 86 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 87 | static int IVmbusChannelEstablishGpadl(struct hv_device *device, void *Buffer, |
| 88 | u32 BufferLen, u32 *GpadlHandle) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 89 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 90 | return VmbusChannelEstablishGpadl(device->context, Buffer, BufferLen, |
| 91 | GpadlHandle); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 92 | } |
| 93 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 94 | static int IVmbusChannelTeardownGpadl(struct hv_device *device, u32 GpadlHandle) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 95 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 96 | return VmbusChannelTeardownGpadl(device->context, GpadlHandle); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 97 | |
| 98 | } |
| 99 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 100 | void GetChannelInterface(struct vmbus_channel_interface *iface) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 101 | { |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 102 | iface->Open = IVmbusChannelOpen; |
| 103 | iface->Close = IVmbusChannelClose; |
| 104 | iface->SendPacket = IVmbusChannelSendPacket; |
| 105 | iface->SendPacketPageBuffer = IVmbusChannelSendPacketPageBuffer; |
| 106 | iface->SendPacketMultiPageBuffer = |
| 107 | IVmbusChannelSendPacketMultiPageBuffer; |
| 108 | iface->RecvPacket = IVmbusChannelRecvPacket; |
| 109 | iface->RecvPacketRaw = IVmbusChannelRecvPacketRaw; |
| 110 | iface->EstablishGpadl = IVmbusChannelEstablishGpadl; |
| 111 | iface->TeardownGpadl = IVmbusChannelTeardownGpadl; |
| 112 | iface->GetInfo = GetChannelInfo; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 113 | } |
| 114 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 115 | void GetChannelInfo(struct hv_device *device, struct hv_device_info *info) |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 116 | { |
Greg Kroah-Hartman | aded7165 | 2009-08-18 15:21:19 -0700 | [diff] [blame] | 117 | struct vmbus_channel_debug_info debugInfo; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 118 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 119 | if (!device->context) |
| 120 | return; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 121 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 122 | VmbusChannelGetDebugInfo(device->context, &debugInfo); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 123 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 124 | info->ChannelId = debugInfo.RelId; |
| 125 | info->ChannelState = debugInfo.State; |
| 126 | memcpy(&info->ChannelType, &debugInfo.InterfaceType, |
| 127 | sizeof(struct hv_guid)); |
| 128 | memcpy(&info->ChannelInstance, &debugInfo.InterfaceInstance, |
| 129 | sizeof(struct hv_guid)); |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 130 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 131 | info->MonitorId = debugInfo.MonitorId; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 132 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 133 | info->ServerMonitorPending = debugInfo.ServerMonitorPending; |
| 134 | info->ServerMonitorLatency = debugInfo.ServerMonitorLatency; |
| 135 | info->ServerMonitorConnectionId = debugInfo.ServerMonitorConnectionId; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 136 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 137 | info->ClientMonitorPending = debugInfo.ClientMonitorPending; |
| 138 | info->ClientMonitorLatency = debugInfo.ClientMonitorLatency; |
| 139 | info->ClientMonitorConnectionId = debugInfo.ClientMonitorConnectionId; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 140 | |
Greg Kroah-Hartman | 490707d | 2009-08-28 16:25:39 -0700 | [diff] [blame] | 141 | info->Inbound.InterruptMask = debugInfo.Inbound.CurrentInterruptMask; |
| 142 | info->Inbound.ReadIndex = debugInfo.Inbound.CurrentReadIndex; |
| 143 | info->Inbound.WriteIndex = debugInfo.Inbound.CurrentWriteIndex; |
| 144 | info->Inbound.BytesAvailToRead = debugInfo.Inbound.BytesAvailToRead; |
| 145 | info->Inbound.BytesAvailToWrite = debugInfo.Inbound.BytesAvailToWrite; |
| 146 | |
| 147 | info->Outbound.InterruptMask = debugInfo.Outbound.CurrentInterruptMask; |
| 148 | info->Outbound.ReadIndex = debugInfo.Outbound.CurrentReadIndex; |
| 149 | info->Outbound.WriteIndex = debugInfo.Outbound.CurrentWriteIndex; |
| 150 | info->Outbound.BytesAvailToRead = debugInfo.Outbound.BytesAvailToRead; |
| 151 | info->Outbound.BytesAvailToWrite = debugInfo.Outbound.BytesAvailToWrite; |
Hank Janssen | 3e7ee49 | 2009-07-13 16:02:34 -0700 | [diff] [blame] | 152 | } |