xref: /freebsd/sys/dev/hyperv/netvsc/if_hnreg.h (revision 076ad2f836d5f49dc1375f1677335a48fe0d4b82)
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 _IF_HNREG_H_
30 #define _IF_HNREG_H_
31 
32 #include <sys/param.h>
33 #include <sys/systm.h>
34 
35 /*
36  * NDIS protocol version numbers
37  */
38 #define HN_NDIS_VERSION_6_1		0x00060001
39 #define HN_NDIS_VERSION_6_20		0x00060014
40 #define HN_NDIS_VERSION_6_30		0x0006001e
41 #define HN_NDIS_VERSION_MAJOR(ver)	(((ver) & 0xffff0000) >> 16)
42 #define HN_NDIS_VERSION_MINOR(ver)	((ver) & 0xffff)
43 
44 /*
45  * NVS versions.
46  */
47 #define HN_NVS_VERSION_1		0x00002
48 #define HN_NVS_VERSION_2		0x30002
49 #define HN_NVS_VERSION_4		0x40000
50 #define HN_NVS_VERSION_5		0x50000
51 
52 #define HN_NVS_RXBUF_SIG		0xcafe
53 #define HN_NVS_CHIM_SIG			0xface
54 
55 #define HN_NVS_CHIM_IDX_INVALID		0xffffffff
56 
57 #define HN_NVS_RNDIS_MTYPE_DATA		0
58 #define HN_NVS_RNDIS_MTYPE_CTRL		1
59 
60 /*
61  * NVS message transacion status codes.
62  */
63 #define HN_NVS_STATUS_OK		1
64 #define HN_NVS_STATUS_FAILED		2
65 
66 /*
67  * NVS request/response message types.
68  */
69 #define HN_NVS_TYPE_INIT		1
70 #define HN_NVS_TYPE_INIT_RESP		2
71 #define HN_NVS_TYPE_NDIS_INIT		100
72 #define HN_NVS_TYPE_RXBUF_CONN		101
73 #define HN_NVS_TYPE_RXBUF_CONNRESP	102
74 #define HN_NVS_TYPE_RXBUF_DISCONN	103
75 #define HN_NVS_TYPE_CHIM_CONN		104
76 #define HN_NVS_TYPE_CHIM_CONNRESP	105
77 #define HN_NVS_TYPE_CHIM_DISCONN	106
78 #define HN_NVS_TYPE_RNDIS		107
79 #define HN_NVS_TYPE_RNDIS_ACK		108
80 #define HN_NVS_TYPE_NDIS_CONF		125
81 #define HN_NVS_TYPE_VFASSOC_NOTE	128	/* notification */
82 #define HN_NVS_TYPE_SET_DATAPATH	129
83 #define HN_NVS_TYPE_SUBCH_REQ		133
84 #define HN_NVS_TYPE_SUBCH_RESP		133	/* same as SUBCH_REQ */
85 #define HN_NVS_TYPE_TXTBL_NOTE		134	/* notification */
86 
87 /*
88  * Any size less than this one will _not_ work, e.g. hn_nvs_init
89  * only has 12B valid data, however, if only 12B data were sent,
90  * Hypervisor would never reply.
91  */
92 #define HN_NVS_REQSIZE_MIN		32
93 
94 /* NVS message common header */
95 struct hn_nvs_hdr {
96 	uint32_t	nvs_type;
97 } __packed;
98 
99 struct hn_nvs_init {
100 	uint32_t	nvs_type;	/* HN_NVS_TYPE_INIT */
101 	uint32_t	nvs_ver_min;
102 	uint32_t	nvs_ver_max;
103 	uint8_t		nvs_rsvd[20];
104 } __packed;
105 CTASSERT(sizeof(struct hn_nvs_init) >= HN_NVS_REQSIZE_MIN);
106 
107 struct hn_nvs_init_resp {
108 	uint32_t	nvs_type;	/* HN_NVS_TYPE_INIT_RESP */
109 	uint32_t	nvs_ver;	/* deprecated */
110 	uint32_t	nvs_rsvd;
111 	uint32_t	nvs_status;	/* HN_NVS_STATUS_ */
112 } __packed;
113 
114 /* No reponse */
115 struct hn_nvs_ndis_conf {
116 	uint32_t	nvs_type;	/* HN_NVS_TYPE_NDIS_CONF */
117 	uint32_t	nvs_mtu;
118 	uint32_t	nvs_rsvd;
119 	uint64_t	nvs_caps;	/* HN_NVS_NDIS_CONF_ */
120 	uint8_t		nvs_rsvd1[12];
121 } __packed;
122 CTASSERT(sizeof(struct hn_nvs_ndis_conf) >= HN_NVS_REQSIZE_MIN);
123 
124 #define HN_NVS_NDIS_CONF_SRIOV		0x0004
125 #define HN_NVS_NDIS_CONF_VLAN		0x0008
126 
127 /* No response */
128 struct hn_nvs_ndis_init {
129 	uint32_t	nvs_type;	/* HN_NVS_TYPE_NDIS_INIT */
130 	uint32_t	nvs_ndis_major;	/* NDIS_VERSION_MAJOR_ */
131 	uint32_t	nvs_ndis_minor;	/* NDIS_VERSION_MINOR_ */
132 	uint8_t		nvs_rsvd[20];
133 } __packed;
134 CTASSERT(sizeof(struct hn_nvs_ndis_init) >= HN_NVS_REQSIZE_MIN);
135 
136 #define HN_NVS_DATAPATH_SYNTHETIC	0
137 #define HN_NVS_DATAPATH_VF		1
138 
139 /* No response */
140 struct hn_nvs_datapath {
141 	uint32_t	nvs_type;	/* HN_NVS_TYPE_SET_DATAPATH */
142 	uint32_t	nvs_active_path;/* HN_NVS_DATAPATH_* */
143 	uint32_t	nvs_rsvd[6];
144 } __packed;
145 CTASSERT(sizeof(struct hn_nvs_datapath) >= HN_NVS_REQSIZE_MIN);
146 
147 struct hn_nvs_rxbuf_conn {
148 	uint32_t	nvs_type;	/* HN_NVS_TYPE_RXBUF_CONN */
149 	uint32_t	nvs_gpadl;	/* RXBUF vmbus GPADL */
150 	uint16_t	nvs_sig;	/* HN_NVS_RXBUF_SIG */
151 	uint8_t		nvs_rsvd[22];
152 } __packed;
153 CTASSERT(sizeof(struct hn_nvs_rxbuf_conn) >= HN_NVS_REQSIZE_MIN);
154 
155 struct hn_nvs_rxbuf_sect {
156 	uint32_t	nvs_start;
157 	uint32_t	nvs_slotsz;
158 	uint32_t	nvs_slotcnt;
159 	uint32_t	nvs_end;
160 } __packed;
161 
162 struct hn_nvs_rxbuf_connresp {
163 	uint32_t	nvs_type;	/* HN_NVS_TYPE_RXBUF_CONNRESP */
164 	uint32_t	nvs_status;	/* HN_NVS_STATUS_ */
165 	uint32_t	nvs_nsect;	/* # of elem in nvs_sect */
166 	struct hn_nvs_rxbuf_sect nvs_sect[];
167 } __packed;
168 
169 /* No response */
170 struct hn_nvs_rxbuf_disconn {
171 	uint32_t	nvs_type;	/* HN_NVS_TYPE_RXBUF_DISCONN */
172 	uint16_t	nvs_sig;	/* HN_NVS_RXBUF_SIG */
173 	uint8_t		nvs_rsvd[26];
174 } __packed;
175 CTASSERT(sizeof(struct hn_nvs_rxbuf_disconn) >= HN_NVS_REQSIZE_MIN);
176 
177 struct hn_nvs_chim_conn {
178 	uint32_t	nvs_type;	/* HN_NVS_TYPE_CHIM_CONN */
179 	uint32_t	nvs_gpadl;	/* chimney buf vmbus GPADL */
180 	uint16_t	nvs_sig;	/* NDIS_NVS_CHIM_SIG */
181 	uint8_t		nvs_rsvd[22];
182 } __packed;
183 CTASSERT(sizeof(struct hn_nvs_chim_conn) >= HN_NVS_REQSIZE_MIN);
184 
185 struct hn_nvs_chim_connresp {
186 	uint32_t	nvs_type;	/* HN_NVS_TYPE_CHIM_CONNRESP */
187 	uint32_t	nvs_status;	/* HN_NVS_STATUS_ */
188 	uint32_t	nvs_sectsz;	/* section size */
189 } __packed;
190 
191 /* No response */
192 struct hn_nvs_chim_disconn {
193 	uint32_t	nvs_type;	/* HN_NVS_TYPE_CHIM_DISCONN */
194 	uint16_t	nvs_sig;	/* HN_NVS_CHIM_SIG */
195 	uint8_t		nvs_rsvd[26];
196 } __packed;
197 CTASSERT(sizeof(struct hn_nvs_chim_disconn) >= HN_NVS_REQSIZE_MIN);
198 
199 #define HN_NVS_SUBCH_OP_ALLOC		1
200 
201 struct hn_nvs_subch_req {
202 	uint32_t	nvs_type;	/* HN_NVS_TYPE_SUBCH_REQ */
203 	uint32_t	nvs_op;		/* HN_NVS_SUBCH_OP_ */
204 	uint32_t	nvs_nsubch;
205 	uint8_t		nvs_rsvd[20];
206 } __packed;
207 CTASSERT(sizeof(struct hn_nvs_subch_req) >= HN_NVS_REQSIZE_MIN);
208 
209 struct hn_nvs_subch_resp {
210 	uint32_t	nvs_type;	/* HN_NVS_TYPE_SUBCH_RESP */
211 	uint32_t	nvs_status;	/* HN_NVS_STATUS_ */
212 	uint32_t	nvs_nsubch;
213 } __packed;
214 
215 struct hn_nvs_rndis {
216 	uint32_t	nvs_type;	/* HN_NVS_TYPE_RNDIS */
217 	uint32_t	nvs_rndis_mtype;/* HN_NVS_RNDIS_MTYPE_ */
218 	/*
219 	 * Chimney sending buffer index and size.
220 	 *
221 	 * NOTE:
222 	 * If nvs_chim_idx is set to HN_NVS_CHIM_IDX_INVALID
223 	 * and nvs_chim_sz is set to 0, then chimney sending
224 	 * buffer is _not_ used by this RNDIS message.
225 	 */
226 	uint32_t	nvs_chim_idx;
227 	uint32_t	nvs_chim_sz;
228 	uint8_t		nvs_rsvd[16];
229 } __packed;
230 CTASSERT(sizeof(struct hn_nvs_rndis) >= HN_NVS_REQSIZE_MIN);
231 
232 struct hn_nvs_rndis_ack {
233 	uint32_t	nvs_type;	/* HN_NVS_TYPE_RNDIS_ACK */
234 	uint32_t	nvs_status;	/* HN_NVS_STATUS_ */
235 	uint8_t		nvs_rsvd[24];
236 } __packed;
237 CTASSERT(sizeof(struct hn_nvs_rndis_ack) >= HN_NVS_REQSIZE_MIN);
238 
239 /*
240  * RNDIS extension
241  */
242 
243 /* Per-packet hash info */
244 #define HN_NDIS_HASH_INFO_SIZE		sizeof(uint32_t)
245 #define HN_NDIS_PKTINFO_TYPE_HASHINF	NDIS_PKTINFO_TYPE_ORIG_NBLIST
246 /* NDIS_HASH_ */
247 
248 /* Per-packet hash value */
249 #define HN_NDIS_HASH_VALUE_SIZE		sizeof(uint32_t)
250 #define HN_NDIS_PKTINFO_TYPE_HASHVAL	NDIS_PKTINFO_TYPE_PKT_CANCELID
251 
252 /* Per-packet-info size */
253 #define HN_RNDIS_PKTINFO_SIZE(dlen)	\
254 	__offsetof(struct rndis_pktinfo, rm_data[dlen])
255 
256 #endif	/* !_IF_HNREG_H_ */
257