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vmbus.h (307456) vmbus.h (307457)
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

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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 *
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 unchanged lines hidden (view full) ---

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/11/sys/dev/hyperv/include/vmbus.h 307456 2016-10-17 02:34:13Z sephe $
26 * $FreeBSD: stable/11/sys/dev/hyperv/include/vmbus.h 307457 2016-10-17 02:36:49Z sephe $
27 */
28
29#ifndef _VMBUS_H_
30#define _VMBUS_H_
31
32#include <sys/param.h>
33
34/*

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42
43/* This is actually vmbus_gpa_range.gpa_page[1] */
44struct vmbus_gpa {
45 uint32_t gpa_len;
46 uint32_t gpa_ofs;
47 uint64_t gpa_page;
48} __packed;
49
27 */
28
29#ifndef _VMBUS_H_
30#define _VMBUS_H_
31
32#include <sys/param.h>
33
34/*

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42
43/* This is actually vmbus_gpa_range.gpa_page[1] */
44struct vmbus_gpa {
45 uint32_t gpa_len;
46 uint32_t gpa_ofs;
47 uint64_t gpa_page;
48} __packed;
49
50#define VMBUS_CHANPKT_SIZE_SHIFT 3
51
52#define VMBUS_CHANPKT_GETLEN(pktlen) \
53 (((int)(pktlen)) << VMBUS_CHANPKT_SIZE_SHIFT)
54
55struct vmbus_chanpkt_hdr {
56 uint16_t cph_type; /* VMBUS_CHANPKT_TYPE_ */
57 uint16_t cph_hlen; /* header len, in 8 bytes */
58 uint16_t cph_tlen; /* total len, in 8 bytes */
59 uint16_t cph_flags; /* VMBUS_CHANPKT_FLAG_ */
60 uint64_t cph_xactid;
61} __packed;
62
50#define VMBUS_CHANPKT_TYPE_INBAND 0x0006
51#define VMBUS_CHANPKT_TYPE_RXBUF 0x0007
52#define VMBUS_CHANPKT_TYPE_GPA 0x0009
53#define VMBUS_CHANPKT_TYPE_COMP 0x000b
54
55#define VMBUS_CHANPKT_FLAG_RC 0x0001 /* report completion */
56
63#define VMBUS_CHANPKT_TYPE_INBAND 0x0006
64#define VMBUS_CHANPKT_TYPE_RXBUF 0x0007
65#define VMBUS_CHANPKT_TYPE_GPA 0x0009
66#define VMBUS_CHANPKT_TYPE_COMP 0x000b
67
68#define VMBUS_CHANPKT_FLAG_RC 0x0001 /* report completion */
69
70#define VMBUS_CHANPKT_CONST_DATA(pkt) \
71 (const void *)((const uint8_t *)(pkt) + \
72 VMBUS_CHANPKT_GETLEN((pkt)->cph_hlen))
73
74struct vmbus_rxbuf_desc {
75 uint32_t rb_len;
76 uint32_t rb_ofs;
77} __packed;
78
79struct vmbus_chanpkt_rxbuf {
80 struct vmbus_chanpkt_hdr cp_hdr;
81 uint16_t cp_rxbuf_id;
82 uint16_t cp_rsvd;
83 uint32_t cp_rxbuf_cnt;
84 struct vmbus_rxbuf_desc cp_rxbuf[];
85} __packed;
86
57#define VMBUS_CHAN_SGLIST_MAX 32
58#define VMBUS_CHAN_PRPLIST_MAX 32
59
60struct hv_vmbus_channel;
61
87#define VMBUS_CHAN_SGLIST_MAX 32
88#define VMBUS_CHAN_PRPLIST_MAX 32
89
90struct hv_vmbus_channel;
91
92int vmbus_chan_recv(struct hv_vmbus_channel *chan, void *data, int *dlen,
93 uint64_t *xactid);
94int vmbus_chan_recv_pkt(struct hv_vmbus_channel *chan,
95 struct vmbus_chanpkt_hdr *pkt, int *pktlen);
96
62int vmbus_chan_send(struct hv_vmbus_channel *chan, uint16_t type,
63 uint16_t flags, void *data, int dlen, uint64_t xactid);
64int vmbus_chan_send_sglist(struct hv_vmbus_channel *chan,
65 struct vmbus_gpa sg[], int sglen, void *data, int dlen,
66 uint64_t xactid);
67int vmbus_chan_send_prplist(struct hv_vmbus_channel *chan,
68 struct vmbus_gpa_range *prp, int prp_cnt, void *data, int dlen,
69 uint64_t xactid);
70
71#endif /* !_VMBUS_H_ */
97int vmbus_chan_send(struct hv_vmbus_channel *chan, uint16_t type,
98 uint16_t flags, void *data, int dlen, uint64_t xactid);
99int vmbus_chan_send_sglist(struct hv_vmbus_channel *chan,
100 struct vmbus_gpa sg[], int sglen, void *data, int dlen,
101 uint64_t xactid);
102int vmbus_chan_send_prplist(struct hv_vmbus_channel *chan,
103 struct vmbus_gpa_range *prp, int prp_cnt, void *data, int dlen,
104 uint64_t xactid);
105
106#endif /* !_VMBUS_H_ */