linux/include/linux/vmw_vmci_api.h
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   1/*
   2 * VMware VMCI Driver
   3 *
   4 * Copyright (C) 2012 VMware, Inc. All rights reserved.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms of the GNU General Public License as published by the
   8 * Free Software Foundation version 2 and no later version.
   9 *
  10 * This program is distributed in the hope that it will be useful, but
  11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13 * for more details.
  14 */
  15
  16#ifndef __VMW_VMCI_API_H__
  17#define __VMW_VMCI_API_H__
  18
  19#include <linux/uidgid.h>
  20#include <linux/vmw_vmci_defs.h>
  21
  22#undef  VMCI_KERNEL_API_VERSION
  23#define VMCI_KERNEL_API_VERSION_1 1
  24#define VMCI_KERNEL_API_VERSION_2 2
  25#define VMCI_KERNEL_API_VERSION   VMCI_KERNEL_API_VERSION_2
  26
  27typedef void (vmci_device_shutdown_fn) (void *device_registration,
  28                                        void *user_data);
  29
  30int vmci_datagram_create_handle(u32 resource_id, u32 flags,
  31                                vmci_datagram_recv_cb recv_cb,
  32                                void *client_data,
  33                                struct vmci_handle *out_handle);
  34int vmci_datagram_create_handle_priv(u32 resource_id, u32 flags, u32 priv_flags,
  35                                     vmci_datagram_recv_cb recv_cb,
  36                                     void *client_data,
  37                                     struct vmci_handle *out_handle);
  38int vmci_datagram_destroy_handle(struct vmci_handle handle);
  39int vmci_datagram_send(struct vmci_datagram *msg);
  40int vmci_doorbell_create(struct vmci_handle *handle, u32 flags,
  41                         u32 priv_flags,
  42                         vmci_callback notify_cb, void *client_data);
  43int vmci_doorbell_destroy(struct vmci_handle handle);
  44int vmci_doorbell_notify(struct vmci_handle handle, u32 priv_flags);
  45u32 vmci_get_context_id(void);
  46bool vmci_is_context_owner(u32 context_id, kuid_t uid);
  47
  48int vmci_event_subscribe(u32 event,
  49                         vmci_event_cb callback, void *callback_data,
  50                         u32 *subid);
  51int vmci_event_unsubscribe(u32 subid);
  52u32 vmci_context_get_priv_flags(u32 context_id);
  53int vmci_qpair_alloc(struct vmci_qp **qpair,
  54                     struct vmci_handle *handle,
  55                     u64 produce_qsize,
  56                     u64 consume_qsize,
  57                     u32 peer, u32 flags, u32 priv_flags);
  58int vmci_qpair_detach(struct vmci_qp **qpair);
  59int vmci_qpair_get_produce_indexes(const struct vmci_qp *qpair,
  60                                   u64 *producer_tail,
  61                                   u64 *consumer_head);
  62int vmci_qpair_get_consume_indexes(const struct vmci_qp *qpair,
  63                                   u64 *consumer_tail,
  64                                   u64 *producer_head);
  65s64 vmci_qpair_produce_free_space(const struct vmci_qp *qpair);
  66s64 vmci_qpair_produce_buf_ready(const struct vmci_qp *qpair);
  67s64 vmci_qpair_consume_free_space(const struct vmci_qp *qpair);
  68s64 vmci_qpair_consume_buf_ready(const struct vmci_qp *qpair);
  69ssize_t vmci_qpair_enqueue(struct vmci_qp *qpair,
  70                           const void *buf, size_t buf_size, int mode);
  71ssize_t vmci_qpair_dequeue(struct vmci_qp *qpair,
  72                           void *buf, size_t buf_size, int mode);
  73ssize_t vmci_qpair_peek(struct vmci_qp *qpair, void *buf, size_t buf_size,
  74                        int mode);
  75ssize_t vmci_qpair_enquev(struct vmci_qp *qpair,
  76                          void *iov, size_t iov_size, int mode);
  77ssize_t vmci_qpair_dequev(struct vmci_qp *qpair,
  78                          void *iov, size_t iov_size, int mode);
  79ssize_t vmci_qpair_peekv(struct vmci_qp *qpair, void *iov, size_t iov_size,
  80                         int mode);
  81
  82#endif /* !__VMW_VMCI_API_H__ */
  83
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