vmbus_xact.h revision 307164
1293297Semaste/*- 2293297Semaste * Copyright (c) 2016 Microsoft Corp. 3293297Semaste * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: stable/10/sys/dev/hyperv/include/vmbus_xact.h 307164 2016-10-13 02:28:40Z sephe $ 27 */ 28 29#ifndef _VMBUS_XACT_H_ 30#define _VMBUS_XACT_H_ 31 32#include <sys/param.h> 33#include <sys/bus.h> 34#include <machine/bus.h> 35 36struct vmbus_xact; 37struct vmbus_xact_ctx; 38 39struct vmbus_xact_ctx *vmbus_xact_ctx_create(bus_dma_tag_t dtag, 40 size_t req_size, size_t resp_size, 41 size_t priv_size); 42void vmbus_xact_ctx_destroy(struct vmbus_xact_ctx *ctx); 43struct vmbus_xact *vmbus_xact_get(struct vmbus_xact_ctx *ctx, 44 size_t req_len); 45void vmbus_xact_put(struct vmbus_xact *xact); 46 47void *vmbus_xact_req_data(const struct vmbus_xact *xact); 48bus_addr_t vmbus_xact_req_paddr(const struct vmbus_xact *xact); 49void *vmbus_xact_priv(const struct vmbus_xact *xact, 50 size_t priv_len); 51void vmbus_xact_activate(struct vmbus_xact *xact); 52void vmbus_xact_deactivate(struct vmbus_xact *xact); 53const void *vmbus_xact_wait(struct vmbus_xact *xact, 54 size_t *resp_len); 55void vmbus_xact_wakeup(struct vmbus_xact *xact, 56 const void *data, size_t dlen); 57void vmbus_xact_ctx_wakeup(struct vmbus_xact_ctx *ctx, 58 const void *data, size_t dlen); 59 60#endif /* !_VMBUS_XACT_H_ */ 61