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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/include/linux/hyperv.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
download | FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2 FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip |
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/include/linux/hyperv.h')
-rw-r--r-- | ANDROID_3.4.5/include/linux/hyperv.h | 1046 |
1 files changed, 0 insertions, 1046 deletions
diff --git a/ANDROID_3.4.5/include/linux/hyperv.h b/ANDROID_3.4.5/include/linux/hyperv.h deleted file mode 100644 index 5852545e..00000000 --- a/ANDROID_3.4.5/include/linux/hyperv.h +++ /dev/null @@ -1,1046 +0,0 @@ -/* - * - * Copyright (c) 2011, 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> - * K. Y. Srinivasan <kys@microsoft.com> - * - */ - -#ifndef _HYPERV_H -#define _HYPERV_H - -#include <linux/types.h> - -/* - * An implementation of HyperV key value pair (KVP) functionality for Linux. - * - * - * Copyright (C) 2010, Novell, Inc. - * Author : K. Y. Srinivasan <ksrinivasan@novell.com> - * - */ - -/* - * Maximum value size - used for both key names and value data, and includes - * any applicable NULL terminators. - * - * Note: This limit is somewhat arbitrary, but falls easily within what is - * supported for all native guests (back to Win 2000) and what is reasonable - * for the IC KVP exchange functionality. Note that Windows Me/98/95 are - * limited to 255 character key names. - * - * MSDN recommends not storing data values larger than 2048 bytes in the - * registry. - * - * Note: This value is used in defining the KVP exchange message - this value - * cannot be modified without affecting the message size and compatibility. - */ - -/* - * bytes, including any null terminators - */ -#define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048) - - -/* - * Maximum key size - the registry limit for the length of an entry name - * is 256 characters, including the null terminator - */ - -#define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512) - -/* - * In Linux, we implement the KVP functionality in two components: - * 1) The kernel component which is packaged as part of the hv_utils driver - * is responsible for communicating with the host and responsible for - * implementing the host/guest protocol. 2) A user level daemon that is - * responsible for data gathering. - * - * Host/Guest Protocol: The host iterates over an index and expects the guest - * to assign a key name to the index and also return the value corresponding to - * the key. The host will have atmost one KVP transaction outstanding at any - * given point in time. The host side iteration stops when the guest returns - * an error. Microsoft has specified the following mapping of key names to - * host specified index: - * - * Index Key Name - * 0 FullyQualifiedDomainName - * 1 IntegrationServicesVersion - * 2 NetworkAddressIPv4 - * 3 NetworkAddressIPv6 - * 4 OSBuildNumber - * 5 OSName - * 6 OSMajorVersion - * 7 OSMinorVersion - * 8 OSVersion - * 9 ProcessorArchitecture - * - * The Windows host expects the Key Name and Key Value to be encoded in utf16. - * - * Guest Kernel/KVP Daemon Protocol: As noted earlier, we implement all of the - * data gathering functionality in a user mode daemon. The user level daemon - * is also responsible for binding the key name to the index as well. The - * kernel and user-level daemon communicate using a connector channel. - * - * The user mode component first registers with the - * the kernel component. Subsequently, the kernel component requests, data - * for the specified keys. In response to this message the user mode component - * fills in the value corresponding to the specified key. We overload the - * sequence field in the cn_msg header to define our KVP message types. - * - * - * The kernel component simply acts as a conduit for communication between the - * Windows host and the user-level daemon. The kernel component passes up the - * index received from the Host to the user-level daemon. If the index is - * valid (supported), the corresponding key as well as its - * value (both are strings) is returned. If the index is invalid - * (not supported), a NULL key string is returned. - */ - - -/* - * Registry value types. - */ - -#define REG_SZ 1 -#define REG_U32 4 -#define REG_U64 8 - -enum hv_kvp_exchg_op { - KVP_OP_GET = 0, - KVP_OP_SET, - KVP_OP_DELETE, - KVP_OP_ENUMERATE, - KVP_OP_REGISTER, - KVP_OP_COUNT /* Number of operations, must be last. */ -}; - -enum hv_kvp_exchg_pool { - KVP_POOL_EXTERNAL = 0, - KVP_POOL_GUEST, - KVP_POOL_AUTO, - KVP_POOL_AUTO_EXTERNAL, - KVP_POOL_AUTO_INTERNAL, - KVP_POOL_COUNT /* Number of pools, must be last. */ -}; - -struct hv_kvp_hdr { - __u8 operation; - __u8 pool; - __u16 pad; -} __attribute__((packed)); - -struct hv_kvp_exchg_msg_value { - __u32 value_type; - __u32 key_size; - __u32 value_size; - __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; - union { - __u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; - __u32 value_u32; - __u64 value_u64; - }; -} __attribute__((packed)); - -struct hv_kvp_msg_enumerate { - __u32 index; - struct hv_kvp_exchg_msg_value data; -} __attribute__((packed)); - -struct hv_kvp_msg_get { - struct hv_kvp_exchg_msg_value data; -}; - -struct hv_kvp_msg_set { - struct hv_kvp_exchg_msg_value data; -}; - -struct hv_kvp_msg_delete { - __u32 key_size; - __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; -}; - -struct hv_kvp_register { - __u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; -}; - -struct hv_kvp_msg { - struct hv_kvp_hdr kvp_hdr; - union { - struct hv_kvp_msg_get kvp_get; - struct hv_kvp_msg_set kvp_set; - struct hv_kvp_msg_delete kvp_delete; - struct hv_kvp_msg_enumerate kvp_enum_data; - struct hv_kvp_register kvp_register; - } body; -} __attribute__((packed)); - -#ifdef __KERNEL__ -#include <linux/scatterlist.h> -#include <linux/list.h> -#include <linux/uuid.h> -#include <linux/timer.h> -#include <linux/workqueue.h> -#include <linux/completion.h> -#include <linux/device.h> -#include <linux/mod_devicetable.h> - - -#define MAX_PAGE_BUFFER_COUNT 19 -#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; - - /* Offset in bytes from the start of ring data below */ - u32 read_index; - - u32 interrupt_mask; - - /* Pad it to PAGE_SIZE so that data starts on page boundary */ - u8 reserved[4084]; - - /* NOTE: - * The interrupt_mask field is used only for channels but since our - * vmbus connection also uses this data structure and its data starts - * here, we commented out this field. - */ - - /* - * Ring data starts here + RingDataStartOffset - * !!! DO NOT place any fields below this !!! - */ - u8 buffer[0]; -} __packed; - -struct hv_ring_buffer_info { - struct hv_ring_buffer *ring_buffer; - u32 ring_size; /* Include the shared header */ - spinlock_t ring_lock; - - u32 ring_datasize; /* < ring_size */ - u32 ring_data_startoffset; -}; - -struct hv_ring_buffer_debug_info { - u32 current_interrupt_mask; - u32 current_read_index; - u32 current_write_index; - u32 bytes_avail_toread; - u32 bytes_avail_towrite; -}; - -/* - * We use the same version numbering for all Hyper-V modules. - * - * Definition of versioning is as follows; - * - * Major Number Changes for these scenarios; - * 1. When a new version of Windows Hyper-V - * is released. - * 2. A Major change has occurred in the - * Linux IC's. - * (For example the merge for the first time - * into the kernel) Every time the Major Number - * changes, the Revision number is reset to 0. - * Minor Number Changes when new functionality is added - * to the Linux IC's that is not a bug fix. - * - * 3.1 - Added completed hv_utils driver. Shutdown/Heartbeat/Timesync - */ -#define HV_DRV_VERSION "3.1" - - -/* - * A revision number of vmbus that is used for ensuring both ends on a - * partition are using compatible versions. - */ -#define VMBUS_REVISION_NUMBER 13 - -/* Make maximum size of pipe payload of 16K */ -#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384) - -/* Define PipeMode values. */ -#define VMBUS_PIPE_TYPE_BYTE 0x00000000 -#define VMBUS_PIPE_TYPE_MESSAGE 0x00000004 - -/* The size of the user defined data buffer for non-pipe offers. */ -#define MAX_USER_DEFINED_BYTES 120 - -/* The size of the user defined data buffer for pipe offers. */ -#define MAX_PIPE_USER_DEFINED_BYTES 116 - -/* - * At the center of the Channel Management library is the Channel Offer. This - * struct contains the fundamental information about an offer. - */ -struct vmbus_channel_offer { - uuid_le if_type; - uuid_le if_instance; - u64 int_latency; /* in 100ns units */ - u32 if_revision; - u32 server_ctx_size; /* in bytes */ - u16 chn_flags; - u16 mmio_megabytes; /* in bytes * 1024 * 1024 */ - - union { - /* Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes. */ - struct { - unsigned char user_def[MAX_USER_DEFINED_BYTES]; - } std; - - /* - * Pipes: - * The following sructure is an integrated pipe protocol, which - * is implemented on top of standard user-defined data. Pipe - * clients have MAX_PIPE_USER_DEFINED_BYTES left for their own - * use. - */ - struct { - u32 pipe_mode; - unsigned char user_def[MAX_PIPE_USER_DEFINED_BYTES]; - } pipe; - } u; - u32 padding; -} __packed; - -/* Server Flags */ -#define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 1 -#define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 2 -#define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 4 -#define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10 -#define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100 -#define VMBUS_CHANNEL_PARENT_OFFER 0x200 -#define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400 - -struct vmpacket_descriptor { - u16 type; - u16 offset8; - u16 len8; - u16 flags; - u64 trans_id; -} __packed; - -struct vmpacket_header { - u32 prev_pkt_start_offset; - struct vmpacket_descriptor descriptor; -} __packed; - -struct vmtransfer_page_range { - u32 byte_count; - u32 byte_offset; -} __packed; - -struct vmtransfer_page_packet_header { - struct vmpacket_descriptor d; - u16 xfer_pageset_id; - bool sender_owns_set; - u8 reserved; - u32 range_cnt; - struct vmtransfer_page_range ranges[1]; -} __packed; - -struct vmgpadl_packet_header { - struct vmpacket_descriptor d; - u32 gpadl; - u32 reserved; -} __packed; - -struct vmadd_remove_transfer_page_set { - struct vmpacket_descriptor d; - u32 gpadl; - u16 xfer_pageset_id; - u16 reserved; -} __packed; - -/* - * This structure defines a range in guest physical space that can be made to - * look virtually contiguous. - */ -struct gpa_range { - u32 byte_count; - u32 byte_offset; - u64 pfn_array[0]; -}; - -/* - * This is the format for an Establish Gpadl packet, which contains a handle by - * which this GPADL will be known and a set of GPA ranges associated with it. - * This can be converted to a MDL by the guest OS. If there are multiple GPA - * ranges, then the resulting MDL will be "chained," representing multiple VA - * ranges. - */ -struct vmestablish_gpadl { - struct vmpacket_descriptor d; - u32 gpadl; - u32 range_cnt; - struct gpa_range range[1]; -} __packed; - -/* - * This is the format for a Teardown Gpadl packet, which indicates that the - * GPADL handle in the Establish Gpadl packet will never be referenced again. - */ -struct vmteardown_gpadl { - struct vmpacket_descriptor d; - u32 gpadl; - u32 reserved; /* for alignment to a 8-byte boundary */ -} __packed; - -/* - * This is the format for a GPA-Direct packet, which contains a set of GPA - * ranges, in addition to commands and/or data. - */ -struct vmdata_gpa_direct { - struct vmpacket_descriptor d; - u32 reserved; - u32 range_cnt; - struct gpa_range range[1]; -} __packed; - -/* This is the format for a Additional Data Packet. */ -struct vmadditional_data { - struct vmpacket_descriptor d; - u64 total_bytes; - u32 offset; - u32 byte_cnt; - unsigned char data[1]; -} __packed; - -union vmpacket_largest_possible_header { - struct vmpacket_descriptor simple_hdr; - struct vmtransfer_page_packet_header xfer_page_hdr; - struct vmgpadl_packet_header gpadl_hdr; - struct vmadd_remove_transfer_page_set add_rm_xfer_page_hdr; - struct vmestablish_gpadl establish_gpadl_hdr; - struct vmteardown_gpadl teardown_gpadl_hdr; - struct vmdata_gpa_direct data_gpa_direct_hdr; -}; - -#define VMPACKET_DATA_START_ADDRESS(__packet) \ - (void *)(((unsigned char *)__packet) + \ - ((struct vmpacket_descriptor)__packet)->offset8 * 8) - -#define VMPACKET_DATA_LENGTH(__packet) \ - ((((struct vmpacket_descriptor)__packet)->len8 - \ - ((struct vmpacket_descriptor)__packet)->offset8) * 8) - -#define VMPACKET_TRANSFER_MODE(__packet) \ - (((struct IMPACT)__packet)->type) - -enum vmbus_packet_type { - VM_PKT_INVALID = 0x0, - VM_PKT_SYNCH = 0x1, - VM_PKT_ADD_XFER_PAGESET = 0x2, - VM_PKT_RM_XFER_PAGESET = 0x3, - VM_PKT_ESTABLISH_GPADL = 0x4, - VM_PKT_TEARDOWN_GPADL = 0x5, - VM_PKT_DATA_INBAND = 0x6, - VM_PKT_DATA_USING_XFER_PAGES = 0x7, - VM_PKT_DATA_USING_GPADL = 0x8, - VM_PKT_DATA_USING_GPA_DIRECT = 0x9, - VM_PKT_CANCEL_REQUEST = 0xa, - VM_PKT_COMP = 0xb, - VM_PKT_DATA_USING_ADDITIONAL_PKT = 0xc, - VM_PKT_ADDITIONAL_DATA = 0xd -}; - -#define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1 - - -/* Version 1 messages */ -enum vmbus_channel_message_type { - CHANNELMSG_INVALID = 0, - CHANNELMSG_OFFERCHANNEL = 1, - CHANNELMSG_RESCIND_CHANNELOFFER = 2, - CHANNELMSG_REQUESTOFFERS = 3, - CHANNELMSG_ALLOFFERS_DELIVERED = 4, - CHANNELMSG_OPENCHANNEL = 5, - CHANNELMSG_OPENCHANNEL_RESULT = 6, - CHANNELMSG_CLOSECHANNEL = 7, - CHANNELMSG_GPADL_HEADER = 8, - CHANNELMSG_GPADL_BODY = 9, - CHANNELMSG_GPADL_CREATED = 10, - CHANNELMSG_GPADL_TEARDOWN = 11, - CHANNELMSG_GPADL_TORNDOWN = 12, - CHANNELMSG_RELID_RELEASED = 13, - CHANNELMSG_INITIATE_CONTACT = 14, - CHANNELMSG_VERSION_RESPONSE = 15, - CHANNELMSG_UNLOAD = 16, -#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD - CHANNELMSG_VIEWRANGE_ADD = 17, - CHANNELMSG_VIEWRANGE_REMOVE = 18, -#endif - CHANNELMSG_COUNT -}; - -struct vmbus_channel_message_header { - enum vmbus_channel_message_type msgtype; - u32 padding; -} __packed; - -/* Query VMBus Version parameters */ -struct vmbus_channel_query_vmbus_version { - struct vmbus_channel_message_header header; - u32 version; -} __packed; - -/* VMBus Version Supported parameters */ -struct vmbus_channel_version_supported { - struct vmbus_channel_message_header header; - bool version_supported; -} __packed; - -/* Offer Channel parameters */ -struct vmbus_channel_offer_channel { - struct vmbus_channel_message_header header; - struct vmbus_channel_offer offer; - u32 child_relid; - u8 monitorid; - bool monitor_allocated; -} __packed; - -/* Rescind Offer parameters */ -struct vmbus_channel_rescind_offer { - struct vmbus_channel_message_header header; - u32 child_relid; -} __packed; - -/* - * Request Offer -- no parameters, SynIC message contains the partition ID - * Set Snoop -- no parameters, SynIC message contains the partition ID - * Clear Snoop -- no parameters, SynIC message contains the partition ID - * All Offers Delivered -- no parameters, SynIC message contains the partition - * ID - * Flush Client -- no parameters, SynIC message contains the partition ID - */ - -/* Open Channel parameters */ -struct vmbus_channel_open_channel { - struct vmbus_channel_message_header header; - - /* Identifies the specific VMBus channel that is being opened. */ - u32 child_relid; - - /* ID making a particular open request at a channel offer unique. */ - u32 openid; - - /* GPADL for the channel's ring buffer. */ - u32 ringbuffer_gpadlhandle; - - /* GPADL for the channel's server context save area. */ - u32 server_contextarea_gpadlhandle; - - /* - * The upstream ring buffer begins at offset zero in the memory - * described by RingBufferGpadlHandle. The downstream ring buffer - * follows it at this offset (in pages). - */ - u32 downstream_ringbuffer_pageoffset; - - /* User-specific data to be passed along to the server endpoint. */ - unsigned char userdata[MAX_USER_DEFINED_BYTES]; -} __packed; - -/* Open Channel Result parameters */ -struct vmbus_channel_open_result { - struct vmbus_channel_message_header header; - u32 child_relid; - u32 openid; - u32 status; -} __packed; - -/* Close channel parameters; */ -struct vmbus_channel_close_channel { - struct vmbus_channel_message_header header; - u32 child_relid; -} __packed; - -/* Channel Message GPADL */ -#define GPADL_TYPE_RING_BUFFER 1 -#define GPADL_TYPE_SERVER_SAVE_AREA 2 -#define GPADL_TYPE_TRANSACTION 8 - -/* - * The number of PFNs in a GPADL message is defined by the number of - * pages that would be spanned by ByteCount and ByteOffset. If the - * implied number of PFNs won't fit in this packet, there will be a - * follow-up packet that contains more. - */ -struct vmbus_channel_gpadl_header { - struct vmbus_channel_message_header header; - u32 child_relid; - u32 gpadl; - u16 range_buflen; - u16 rangecount; - struct gpa_range range[0]; -} __packed; - -/* This is the followup packet that contains more PFNs. */ -struct vmbus_channel_gpadl_body { - struct vmbus_channel_message_header header; - u32 msgnumber; - u32 gpadl; - u64 pfn[0]; -} __packed; - -struct vmbus_channel_gpadl_created { - struct vmbus_channel_message_header header; - u32 child_relid; - u32 gpadl; - u32 creation_status; -} __packed; - -struct vmbus_channel_gpadl_teardown { - struct vmbus_channel_message_header header; - u32 child_relid; - u32 gpadl; -} __packed; - -struct vmbus_channel_gpadl_torndown { - struct vmbus_channel_message_header header; - u32 gpadl; -} __packed; - -#ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD -struct vmbus_channel_view_range_add { - struct vmbus_channel_message_header header; - PHYSICAL_ADDRESS viewrange_base; - u64 viewrange_length; - u32 child_relid; -} __packed; - -struct vmbus_channel_view_range_remove { - struct vmbus_channel_message_header header; - PHYSICAL_ADDRESS viewrange_base; - u32 child_relid; -} __packed; -#endif - -struct vmbus_channel_relid_released { - struct vmbus_channel_message_header header; - u32 child_relid; -} __packed; - -struct vmbus_channel_initiate_contact { - struct vmbus_channel_message_header header; - u32 vmbus_version_requested; - u32 padding2; - u64 interrupt_page; - u64 monitor_page1; - u64 monitor_page2; -} __packed; - -struct vmbus_channel_version_response { - struct vmbus_channel_message_header header; - bool version_supported; -} __packed; - -enum vmbus_channel_state { - CHANNEL_OFFER_STATE, - CHANNEL_OPENING_STATE, - CHANNEL_OPEN_STATE, -}; - -struct vmbus_channel_debug_info { - u32 relid; - enum vmbus_channel_state state; - uuid_le interfacetype; - uuid_le interface_instance; - u32 monitorid; - u32 servermonitor_pending; - u32 servermonitor_latency; - u32 servermonitor_connectionid; - u32 clientmonitor_pending; - u32 clientmonitor_latency; - u32 clientmonitor_connectionid; - - struct hv_ring_buffer_debug_info inbound; - struct hv_ring_buffer_debug_info outbound; -}; - -/* - * Represents each channel msg on the vmbus connection This is a - * variable-size data structure depending on the msg type itself - */ -struct vmbus_channel_msginfo { - /* Bookkeeping stuff */ - struct list_head msglistentry; - - /* So far, this is only used to handle gpadl body message */ - struct list_head submsglist; - - /* Synchronize the request/response if needed */ - struct completion waitevent; - union { - struct vmbus_channel_version_supported version_supported; - struct vmbus_channel_open_result open_result; - struct vmbus_channel_gpadl_torndown gpadl_torndown; - struct vmbus_channel_gpadl_created gpadl_created; - struct vmbus_channel_version_response version_response; - } response; - - u32 msgsize; - /* - * The channel message that goes out on the "wire". - * It will contain at minimum the VMBUS_CHANNEL_MESSAGE_HEADER header - */ - unsigned char msg[0]; -}; - -struct vmbus_close_msg { - struct vmbus_channel_msginfo info; - struct vmbus_channel_close_channel msg; -}; - -struct vmbus_channel { - struct list_head listentry; - - struct hv_device *device_obj; - - struct work_struct work; - - enum vmbus_channel_state state; - - struct vmbus_channel_offer_channel offermsg; - /* - * These are based on the OfferMsg.MonitorId. - * Save it here for easy access. - */ - u8 monitor_grp; - u8 monitor_bit; - - u32 ringbuffer_gpadlhandle; - - /* Allocated memory for ring buffer */ - void *ringbuffer_pages; - u32 ringbuffer_pagecount; - struct hv_ring_buffer_info outbound; /* send to parent */ - struct hv_ring_buffer_info inbound; /* receive from parent */ - spinlock_t inbound_lock; - struct workqueue_struct *controlwq; - - struct vmbus_close_msg close_msg; - - /* Channel callback are invoked in this workqueue context */ - /* HANDLE dataWorkQueue; */ - - void (*onchannel_callback)(void *context); - void *channel_callback_context; -}; - -void vmbus_onmessage(void *context); - -int vmbus_request_offers(void); - -/* The format must be the same as struct vmdata_gpa_direct */ -struct vmbus_channel_packet_page_buffer { - u16 type; - u16 dataoffset8; - u16 length8; - u16 flags; - u64 transactionid; - u32 reserved; - u32 rangecount; - struct hv_page_buffer range[MAX_PAGE_BUFFER_COUNT]; -} __packed; - -/* The format must be the same as struct vmdata_gpa_direct */ -struct vmbus_channel_packet_multipage_buffer { - u16 type; - u16 dataoffset8; - u16 length8; - u16 flags; - u64 transactionid; - u32 reserved; - u32 rangecount; /* Always 1 in this case */ - struct hv_multipage_buffer range; -} __packed; - - -extern int vmbus_open(struct vmbus_channel *channel, - u32 send_ringbuffersize, - u32 recv_ringbuffersize, - void *userdata, - u32 userdatalen, - void(*onchannel_callback)(void *context), - void *context); - -extern void vmbus_close(struct vmbus_channel *channel); - -extern int vmbus_sendpacket(struct vmbus_channel *channel, - const void *buffer, - u32 bufferLen, - u64 requestid, - enum vmbus_packet_type type, - u32 flags); - -extern int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel, - struct hv_page_buffer pagebuffers[], - u32 pagecount, - void *buffer, - u32 bufferlen, - u64 requestid); - -extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel, - struct hv_multipage_buffer *mpb, - void *buffer, - u32 bufferlen, - u64 requestid); - -extern int vmbus_establish_gpadl(struct vmbus_channel *channel, - void *kbuffer, - u32 size, - u32 *gpadl_handle); - -extern int vmbus_teardown_gpadl(struct vmbus_channel *channel, - u32 gpadl_handle); - -extern int vmbus_recvpacket(struct vmbus_channel *channel, - void *buffer, - u32 bufferlen, - u32 *buffer_actual_len, - u64 *requestid); - -extern int vmbus_recvpacket_raw(struct vmbus_channel *channel, - void *buffer, - u32 bufferlen, - u32 *buffer_actual_len, - u64 *requestid); - - -extern void vmbus_get_debug_info(struct vmbus_channel *channel, - struct vmbus_channel_debug_info *debug); - -extern void vmbus_ontimer(unsigned long data); - -struct hv_dev_port_info { - u32 int_mask; - u32 read_idx; - u32 write_idx; - u32 bytes_avail_toread; - u32 bytes_avail_towrite; -}; - -/* Base driver object */ -struct hv_driver { - const char *name; - - /* the device type supported by this driver */ - uuid_le dev_type; - const struct hv_vmbus_device_id *id_table; - - struct device_driver driver; - - int (*probe)(struct hv_device *, const struct hv_vmbus_device_id *); - int (*remove)(struct hv_device *); - void (*shutdown)(struct hv_device *); - -}; - -/* Base device object */ -struct hv_device { - /* the device type id of this device */ - uuid_le dev_type; - - /* the device instance id of this device */ - uuid_le dev_instance; - - struct device device; - - struct vmbus_channel *channel; -}; - - -static inline struct hv_device *device_to_hv_device(struct device *d) -{ - return container_of(d, struct hv_device, device); -} - -static inline struct hv_driver *drv_to_hv_drv(struct device_driver *d) -{ - return container_of(d, struct hv_driver, driver); -} - -static inline void hv_set_drvdata(struct hv_device *dev, void *data) -{ - dev_set_drvdata(&dev->device, data); -} - -static inline void *hv_get_drvdata(struct hv_device *dev) -{ - return dev_get_drvdata(&dev->device); -} - -/* Vmbus interface */ -#define vmbus_driver_register(driver) \ - __vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME) -int __must_check __vmbus_driver_register(struct hv_driver *hv_driver, - struct module *owner, - const char *mod_name); -void vmbus_driver_unregister(struct hv_driver *hv_driver); - -/** - * VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device - * - * This macro is used to create a struct hv_vmbus_device_id that matches a - * specific device. - */ -#define VMBUS_DEVICE(g0, g1, g2, g3, g4, g5, g6, g7, \ - g8, g9, ga, gb, gc, gd, ge, gf) \ - .guid = { g0, g1, g2, g3, g4, g5, g6, g7, \ - g8, g9, ga, gb, gc, gd, ge, gf }, - -/* - * Common header for Hyper-V ICs - */ - -#define ICMSGTYPE_NEGOTIATE 0 -#define ICMSGTYPE_HEARTBEAT 1 -#define ICMSGTYPE_KVPEXCHANGE 2 -#define ICMSGTYPE_SHUTDOWN 3 -#define ICMSGTYPE_TIMESYNC 4 -#define ICMSGTYPE_VSS 5 - -#define ICMSGHDRFLAG_TRANSACTION 1 -#define ICMSGHDRFLAG_REQUEST 2 -#define ICMSGHDRFLAG_RESPONSE 4 - -#define HV_S_OK 0x00000000 -#define HV_E_FAIL 0x80004005 -#define HV_S_CONT 0x80070103 -#define HV_ERROR_NOT_SUPPORTED 0x80070032 -#define HV_ERROR_MACHINE_LOCKED 0x800704F7 - -/* - * While we want to handle util services as regular devices, - * there is only one instance of each of these services; so - * we statically allocate the service specific state. - */ - -struct hv_util_service { - u8 *recv_buffer; - void (*util_cb)(void *); - int (*util_init)(struct hv_util_service *); - void (*util_deinit)(void); -}; - -struct vmbuspipe_hdr { - u32 flags; - u32 msgsize; -} __packed; - -struct ic_version { - u16 major; - u16 minor; -} __packed; - -struct icmsg_hdr { - struct ic_version icverframe; - u16 icmsgtype; - struct ic_version icvermsg; - u16 icmsgsize; - u32 status; - u8 ictransaction_id; - u8 icflags; - u8 reserved[2]; -} __packed; - -struct icmsg_negotiate { - u16 icframe_vercnt; - u16 icmsg_vercnt; - u32 reserved; - struct ic_version icversion_data[1]; /* any size array */ -} __packed; - -struct shutdown_msg_data { - u32 reason_code; - u32 timeout_seconds; - u32 flags; - u8 display_message[2048]; -} __packed; - -struct heartbeat_msg_data { - u64 seq_num; - u32 reserved[8]; -} __packed; - -/* Time Sync IC defs */ -#define ICTIMESYNCFLAG_PROBE 0 -#define ICTIMESYNCFLAG_SYNC 1 -#define ICTIMESYNCFLAG_SAMPLE 2 - -#ifdef __x86_64__ -#define WLTIMEDELTA 116444736000000000L /* in 100ns unit */ -#else -#define WLTIMEDELTA 116444736000000000LL -#endif - -struct ictimesync_data { - u64 parenttime; - u64 childtime; - u64 roundtriptime; - u8 flags; -} __packed; - -struct hyperv_service_callback { - u8 msg_type; - char *log_msg; - uuid_le data; - struct vmbus_channel *channel; - void (*callback) (void *context); -}; - -extern void vmbus_prep_negotiate_resp(struct icmsg_hdr *, - struct icmsg_negotiate *, u8 *); - -int hv_kvp_init(struct hv_util_service *); -void hv_kvp_deinit(void); -void hv_kvp_onchannelcallback(void *); - -#endif /* __KERNEL__ */ -#endif /* _HYPERV_H */ |