if_hnvar.h revision 307164 
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: stable/10/sys/dev/hyperv/netvsc/if_hnvar.h 307164 2016-10-13 02:28:40Z sephe $
27 */
28
29#ifndef _IF_HNVAR_H_
30#define _IF_HNVAR_H_
31
32#include <sys/param.h>
33#include <dev/hyperv/netvsc/hv_net_vsc.h>
34
35struct netvsc_dev_;
36struct nvsp_msg_;
37
38struct vmbus_channel;
39struct hn_send_ctx;
40
41typedef void		(*hn_sent_callback_t)
42			(struct hn_send_ctx *, struct netvsc_dev_ *,
43			 struct vmbus_channel *, const struct nvsp_msg_ *, int);
44
45struct hn_send_ctx {
46	hn_sent_callback_t	hn_cb;
47	void			*hn_cbarg;
48	uint32_t		hn_chim_idx;
49	int			hn_chim_sz;
50};
51
52#define HN_SEND_CTX_INITIALIZER(cb, cbarg)				\
53{									\
54	.hn_cb		= cb,						\
55	.hn_cbarg	= cbarg,					\
56	.hn_chim_idx	= NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX,	\
57	.hn_chim_sz	= 0						\
58}
59
60static __inline void
61hn_send_ctx_init(struct hn_send_ctx *sndc, hn_sent_callback_t cb,
62    void *cbarg, uint32_t chim_idx, int chim_sz)
63{
64	sndc->hn_cb = cb;
65	sndc->hn_cbarg = cbarg;
66	sndc->hn_chim_idx = chim_idx;
67	sndc->hn_chim_sz = chim_sz;
68}
69
70static __inline void
71hn_send_ctx_init_simple(struct hn_send_ctx *sndc, hn_sent_callback_t cb,
72    void *cbarg)
73{
74	hn_send_ctx_init(sndc, cb, cbarg,
75	    NVSP_1_CHIMNEY_SEND_INVALID_SECTION_INDEX, 0);
76}
77
78void		hn_nvs_sent_xact(struct hn_send_ctx *sndc,
79		    struct netvsc_dev_ *net_dev, struct vmbus_channel *chan,
80		    const struct nvsp_msg_ *msg, int dlen);
81void		hn_chim_free(struct netvsc_dev_ *net_dev, uint32_t chim_idx);
82
83#endif	/* !_IF_HNVAR_H_ */
84