vmbus_xact.h

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    1 /*-
    2  * Copyright (c) 2016 Microsoft Corp.
    3  * 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  * $FreeBSD$
   27  */
   28 
   29 #ifndef _VMBUS_XACT_H_
   30 #define _VMBUS_XACT_H_
   31 
   32 #include <sys/param.h>
   33 #include <sys/bus.h>
   34 
   35 struct vmbus_xact;
   36 struct vmbus_xact_ctx;
   37 
   38 struct vmbus_xact_ctx   *vmbus_xact_ctx_create(bus_dma_tag_t dtag,
   39                             size_t req_size, size_t resp_size,
   40                             size_t priv_size);
   41 void                    vmbus_xact_ctx_destroy(struct vmbus_xact_ctx *ctx);
   42 bool                    vmbus_xact_ctx_orphan(struct vmbus_xact_ctx *ctx);
   43 
   44 struct vmbus_xact       *vmbus_xact_get(struct vmbus_xact_ctx *ctx,
   45                             size_t req_len);
   46 void                    vmbus_xact_put(struct vmbus_xact *xact);
   47 
   48 void                    *vmbus_xact_req_data(const struct vmbus_xact *xact);
   49 bus_addr_t              vmbus_xact_req_paddr(const struct vmbus_xact *xact);
   50 void                    *vmbus_xact_priv(const struct vmbus_xact *xact,
   51                             size_t priv_len);
   52 void                    vmbus_xact_activate(struct vmbus_xact *xact);
   53 void                    vmbus_xact_deactivate(struct vmbus_xact *xact);
   54 const void              *vmbus_xact_wait(struct vmbus_xact *xact,
   55                             size_t *resp_len);
   56 const void              *vmbus_xact_busywait(struct vmbus_xact *xact,
   57                             size_t *resp_len);
   58 const void              *vmbus_xact_poll(struct vmbus_xact *xact,
   59                             size_t *resp_len);
   60 void                    vmbus_xact_wakeup(struct vmbus_xact *xact,
   61                             const void *data, size_t dlen);
   62 void                    vmbus_xact_ctx_wakeup(struct vmbus_xact_ctx *ctx,
   63                             const void *data, size_t dlen);
   64 
   65 #endif  /* !_VMBUS_XACT_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/dev/hyperv/include/vmbus_xact.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/hyperv/include/vmbus_xact.h