3eeb751122
and VMware legal: - Add a dual BSD-2 Clause/GPLv2 LICENSE file in the VMCI directory - Remove the use of "All Rights Reserved" - Per best practice, remove copyright/license info from Makefile Reviewed by: imp, emaste, jhb, Vishnu Dasa <vdasa@vmware.com> Approved by: VMware legal via Mark Peek <markpeek@vmware.com> Differential Revision: https://reviews.freebsd.org/D14979
95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/*-
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* Copyright (c) 2018 VMware, Inc.
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*
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* SPDX-License-Identifier: (BSD-2-Clause OR GPL-2.0)
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*
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* $FreeBSD$
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*/
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/* This file defines helper functions */
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#ifndef _VMCI_KERNEL_IF_H_
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#define _VMCI_KERNEL_IF_H_
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/queue.h>
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#include <sys/sema.h>
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#include "vmci_defs.h"
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#define VMCI_MEMORY_NORMAL 0x0
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#define VMCI_MEMORY_ATOMIC 0x1
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#define vmci_list(_l) LIST_HEAD(, _l)
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#define vmci_list_item(_l) LIST_ENTRY(_l)
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#define vmci_list_init(_l) LIST_INIT(_l)
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#define vmci_list_empty(_l) LIST_EMPTY(_l)
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#define vmci_list_first(_l) LIST_FIRST(_l)
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#define vmci_list_next(e, f) LIST_NEXT(e, f)
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#define vmci_list_insert(_l, _e, n) LIST_INSERT_HEAD(_l, _e, n)
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#define vmci_list_remove(_e, n) LIST_REMOVE(_e, n)
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#define vmci_list_scan(v, _l, n) LIST_FOREACH(v, _l, n)
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#define vmci_list_scan_safe(_e, _l, n, t) \
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LIST_FOREACH_SAFE(_e, _l, n, t)
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#define vmci_list_swap(_l1, _l2, t, f) LIST_SWAP(_l1, _l2, t, f)
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typedef unsigned short int vmci_io_port;
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typedef int vmci_io_handle;
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void vmci_read_port_bytes(vmci_io_handle handle, vmci_io_port port,
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uint8_t *buffer, size_t buffer_length);
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typedef struct mtx vmci_lock;
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int vmci_init_lock(vmci_lock *lock, char *name);
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void vmci_cleanup_lock(vmci_lock *lock);
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void vmci_grab_lock(vmci_lock *lock);
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void vmci_release_lock(vmci_lock *lock);
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void vmci_grab_lock_bh(vmci_lock *lock);
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void vmci_release_lock_bh(vmci_lock *lock);
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void *vmci_alloc_kernel_mem(size_t size, int flags);
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void vmci_free_kernel_mem(void *ptr, size_t size);
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typedef struct sema vmci_event;
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typedef int (*vmci_event_release_cb)(void *client_data);
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void vmci_create_event(vmci_event *event);
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void vmci_destroy_event(vmci_event *event);
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void vmci_signal_event(vmci_event *event);
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void vmci_wait_on_event(vmci_event *event, vmci_event_release_cb release_cb,
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void *client_data);
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bool vmci_wait_on_event_interruptible(vmci_event *event,
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vmci_event_release_cb release_cb, void *client_data);
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typedef void (vmci_work_fn)(void *data);
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bool vmci_can_schedule_delayed_work(void);
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int vmci_schedule_delayed_work(vmci_work_fn *work_fn, void *data);
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void vmci_delayed_work_cb(void *context, int data);
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typedef struct mtx vmci_mutex;
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int vmci_mutex_init(vmci_mutex *mutex, char *name);
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void vmci_mutex_destroy(vmci_mutex *mutex);
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void vmci_mutex_acquire(vmci_mutex *mutex);
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void vmci_mutex_release(vmci_mutex *mutex);
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void *vmci_alloc_queue(uint64_t size, uint32_t flags);
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void vmci_free_queue(void *q, uint64_t size);
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typedef PPN *vmci_ppn_list;
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struct ppn_set {
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uint64_t num_produce_pages;
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uint64_t num_consume_pages;
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vmci_ppn_list produce_ppns;
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vmci_ppn_list consume_ppns;
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bool initialized;
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};
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int vmci_alloc_ppn_set(void *produce_q, uint64_t num_produce_pages,
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void *consume_q, uint64_t num_consume_pages,
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struct ppn_set *ppn_set);
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void vmci_free_ppn_set(struct ppn_set *ppn_set);
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int vmci_populate_ppn_list(uint8_t *call_buf, const struct ppn_set *ppnset);
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#endif /* !_VMCI_KERNEL_IF_H_ */
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