forked from mirrors/linux
b1bba80a43
To allow other transports to be loaded with vmci_transport, we register the vmci_transport as G2H or H2G only when a VMCI guest or host is active. To do that, this patch adds a callback registered in the vmci driver that will be called when the host or guest becomes active. This callback will register the vmci_transport in the VSOCK core. Cc: Jorgen Hansen <jhansen@vmware.com> Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* VMware VMCI Driver
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*
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* Copyright (C) 2012 VMware, Inc. All rights reserved.
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*/
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#ifndef __VMW_VMCI_API_H__
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#define __VMW_VMCI_API_H__
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#include <linux/uidgid.h>
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#include <linux/vmw_vmci_defs.h>
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#undef VMCI_KERNEL_API_VERSION
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#define VMCI_KERNEL_API_VERSION_1 1
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#define VMCI_KERNEL_API_VERSION_2 2
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#define VMCI_KERNEL_API_VERSION VMCI_KERNEL_API_VERSION_2
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struct msghdr;
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typedef void (vmci_device_shutdown_fn) (void *device_registration,
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void *user_data);
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typedef void (*vmci_vsock_cb) (bool is_host);
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int vmci_datagram_create_handle(u32 resource_id, u32 flags,
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vmci_datagram_recv_cb recv_cb,
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void *client_data,
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struct vmci_handle *out_handle);
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int vmci_datagram_create_handle_priv(u32 resource_id, u32 flags, u32 priv_flags,
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vmci_datagram_recv_cb recv_cb,
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void *client_data,
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struct vmci_handle *out_handle);
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int vmci_datagram_destroy_handle(struct vmci_handle handle);
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int vmci_datagram_send(struct vmci_datagram *msg);
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int vmci_doorbell_create(struct vmci_handle *handle, u32 flags,
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u32 priv_flags,
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vmci_callback notify_cb, void *client_data);
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int vmci_doorbell_destroy(struct vmci_handle handle);
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int vmci_doorbell_notify(struct vmci_handle handle, u32 priv_flags);
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u32 vmci_get_context_id(void);
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bool vmci_is_context_owner(u32 context_id, kuid_t uid);
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int vmci_register_vsock_callback(vmci_vsock_cb callback);
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int vmci_event_subscribe(u32 event,
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vmci_event_cb callback, void *callback_data,
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u32 *subid);
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int vmci_event_unsubscribe(u32 subid);
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u32 vmci_context_get_priv_flags(u32 context_id);
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int vmci_qpair_alloc(struct vmci_qp **qpair,
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struct vmci_handle *handle,
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u64 produce_qsize,
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u64 consume_qsize,
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u32 peer, u32 flags, u32 priv_flags);
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int vmci_qpair_detach(struct vmci_qp **qpair);
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int vmci_qpair_get_produce_indexes(const struct vmci_qp *qpair,
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u64 *producer_tail,
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u64 *consumer_head);
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int vmci_qpair_get_consume_indexes(const struct vmci_qp *qpair,
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u64 *consumer_tail,
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u64 *producer_head);
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s64 vmci_qpair_produce_free_space(const struct vmci_qp *qpair);
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s64 vmci_qpair_produce_buf_ready(const struct vmci_qp *qpair);
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s64 vmci_qpair_consume_free_space(const struct vmci_qp *qpair);
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s64 vmci_qpair_consume_buf_ready(const struct vmci_qp *qpair);
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ssize_t vmci_qpair_enqueue(struct vmci_qp *qpair,
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const void *buf, size_t buf_size, int mode);
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ssize_t vmci_qpair_dequeue(struct vmci_qp *qpair,
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void *buf, size_t buf_size, int mode);
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ssize_t vmci_qpair_peek(struct vmci_qp *qpair, void *buf, size_t buf_size,
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int mode);
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ssize_t vmci_qpair_enquev(struct vmci_qp *qpair,
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struct msghdr *msg, size_t iov_size, int mode);
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ssize_t vmci_qpair_dequev(struct vmci_qp *qpair,
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struct msghdr *msg, size_t iov_size, int mode);
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ssize_t vmci_qpair_peekv(struct vmci_qp *qpair, struct msghdr *msg, size_t iov_size,
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int mode);
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#endif /* !__VMW_VMCI_API_H__ */
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