+++ /dev/null
-/*
- *
- * 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>
- *
- */
-
-
-#ifndef _CHANNEL_MGMT_H_
-#define _CHANNEL_MGMT_H_
-
-#include <linux/list.h>
-#include <linux/timer.h>
-#include <linux/workqueue.h>
-#include <linux/completion.h>
-#include "hyperv.h"
-
-/* 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 {
- struct list_head listentry;
-
- struct hv_device *device_obj;
-
- struct timer_list poll_timer; /* SA-111 workaround */
- 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;
-
- /* Channel callback are invoked in this workqueue context */
- /* HANDLE dataWorkQueue; */
-
- void (*onchannel_callback)(void *context);
- void *channel_callback_context;
-};
-
-struct vmbus_channel_debug_info {
- u32 relid;
- enum vmbus_channel_state state;
- struct hv_guid interfacetype;
- struct hv_guid 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];
-};
-
-
-void free_channel(struct vmbus_channel *channel);
-
-void vmbus_onmessage(void *context);
-
-int vmbus_request_offers(void);
-
-#endif /* _CHANNEL_MGMT_H_ */
#define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1
+
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/workqueue.h>
+#include <linux/completion.h>
+#include "hyperv.h"
+
+/* 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 {
+ struct list_head listentry;
+
+ struct hv_device *device_obj;
+
+ struct timer_list poll_timer; /* SA-111 workaround */
+ 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;
+
+ /* Channel callback are invoked in this workqueue context */
+ /* HANDLE dataWorkQueue; */
+
+ void (*onchannel_callback)(void *context);
+ void *channel_callback_context;
+};
+
+struct vmbus_channel_debug_info {
+ u32 relid;
+ enum vmbus_channel_state state;
+ struct hv_guid interfacetype;
+ struct hv_guid 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];
+};
+
+
+void free_channel(struct vmbus_channel *channel);
+
+void vmbus_onmessage(void *context);
+
+int vmbus_request_offers(void);
+
#endif /* _HYPERV_H */
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