xref: /freebsd/sys/dev/vmware/vmxnet3/if_vmxreg.h (revision 7899f917b1c0ea178f1d2be0cfb452086d079d23)
1 /*-
2  * Copyright (c) 2013 Tsubai Masanari
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  *
16  * $OpenBSD: src/sys/dev/pci/if_vmxreg.h,v 1.2 2013/06/12 01:07:33 uebayasi Exp $
17  */
18 
19 #ifndef _IF_VMXREG_H
20 #define _IF_VMXREG_H
21 
22 struct UPT1_TxStats {
23 	uint64_t	TSO_packets;
24 	uint64_t	TSO_bytes;
25 	uint64_t	ucast_packets;
26 	uint64_t	ucast_bytes;
27 	uint64_t	mcast_packets;
28 	uint64_t	mcast_bytes;
29 	uint64_t	bcast_packets;
30 	uint64_t	bcast_bytes;
31 	uint64_t	error;
32 	uint64_t	discard;
33 } __packed;
34 
35 struct UPT1_RxStats {
36 	uint64_t	LRO_packets;
37 	uint64_t	LRO_bytes;
38 	uint64_t	ucast_packets;
39 	uint64_t	ucast_bytes;
40 	uint64_t	mcast_packets;
41 	uint64_t	mcast_bytes;
42 	uint64_t	bcast_packets;
43 	uint64_t	bcast_bytes;
44 	uint64_t	nobuffer;
45 	uint64_t	error;
46 } __packed;
47 
48 /* Interrupt moderation levels */
49 #define UPT1_IMOD_NONE		0	/* No moderation */
50 #define UPT1_IMOD_HIGHEST	7	/* Least interrupts */
51 #define UPT1_IMOD_ADAPTIVE	8	/* Adaptive interrupt moderation */
52 
53 /* Hardware features */
54 #define UPT1_F_CSUM	0x0001		/* Rx checksum verification */
55 #define UPT1_F_RSS	0x0002		/* Receive side scaling */
56 #define UPT1_F_VLAN	0x0004		/* VLAN tag stripping */
57 #define UPT1_F_LRO	0x0008		/* Large receive offloading */
58 
59 #define VMXNET3_BAR0_IMASK(irq)	(0x000 + (irq) * 8)	/* Interrupt mask */
60 #define VMXNET3_BAR0_TXH(q)	(0x600 + (q) * 8)	/* Tx head */
61 #define VMXNET3_BAR0_RXH1(q)	(0x800 + (q) * 8)	/* Ring1 Rx head */
62 #define VMXNET3_BAR0_RXH2(q)	(0xA00 + (q) * 8)	/* Ring2 Rx head */
63 #define VMXNET3_BAR1_VRRS	0x000	/* VMXNET3 revision report selection */
64 #define VMXNET3_BAR1_UVRS	0x008	/* UPT version report selection */
65 #define VMXNET3_BAR1_DSL	0x010	/* Driver shared address low */
66 #define VMXNET3_BAR1_DSH	0x018	/* Driver shared address high */
67 #define VMXNET3_BAR1_CMD	0x020	/* Command */
68 #define VMXNET3_BAR1_MACL	0x028	/* MAC address low */
69 #define VMXNET3_BAR1_MACH	0x030	/* MAC address high */
70 #define VMXNET3_BAR1_INTR	0x038	/* Interrupt status */
71 #define VMXNET3_BAR1_EVENT	0x040	/* Event status */
72 
73 #define VMXNET3_CMD_ENABLE	0xCAFE0000	/* Enable VMXNET3 */
74 #define VMXNET3_CMD_DISABLE	0xCAFE0001	/* Disable VMXNET3 */
75 #define VMXNET3_CMD_RESET	0xCAFE0002	/* Reset device */
76 #define VMXNET3_CMD_SET_RXMODE	0xCAFE0003	/* Set interface flags */
77 #define VMXNET3_CMD_SET_FILTER	0xCAFE0004	/* Set address filter */
78 #define VMXNET3_CMD_VLAN_FILTER	0xCAFE0005	/* Set VLAN filter */
79 #define VMXNET3_CMD_GET_STATUS	0xF00D0000	/* Get queue errors */
80 #define VMXNET3_CMD_GET_STATS	0xF00D0001	/* Get queue statistics */
81 #define VMXNET3_CMD_GET_LINK	0xF00D0002	/* Get link status */
82 #define VMXNET3_CMD_GET_MACL	0xF00D0003	/* Get MAC address low */
83 #define VMXNET3_CMD_GET_MACH	0xF00D0004	/* Get MAC address high */
84 #define VMXNET3_CMD_GET_INTRCFG	0xF00D0008	/* Get interrupt config */
85 
86 #define VMXNET3_DMADESC_ALIGN	128
87 #define VMXNET3_INIT_GEN	1
88 
89 struct vmxnet3_txdesc {
90 	uint64_t	addr;
91 
92 	uint32_t	len:14;
93 	uint32_t	gen:1;		/* Generation */
94 	uint32_t	pad1:1;
95 	uint32_t	dtype:1;	/* Descriptor type */
96 	uint32_t	pad2:1;
97 	uint32_t	offload_pos:14;	/* Offloading position */
98 
99 	uint32_t	hlen:10;	/* Header len */
100 	uint32_t	offload_mode:2;	/* Offloading mode */
101 	uint32_t	eop:1;		/* End of packet */
102 	uint32_t	compreq:1;	/* Completion request */
103 	uint32_t	pad3:1;
104 	uint32_t	vtag_mode:1;	/* VLAN tag insertion mode */
105 	uint32_t	vtag:16;	/* VLAN tag */
106 } __packed;
107 
108 /* Offloading modes */
109 #define VMXNET3_OM_NONE	0
110 #define VMXNET3_OM_CSUM 2
111 #define VMXNET3_OM_TSO  3
112 
113 struct vmxnet3_txcompdesc {
114 	uint32_t	eop_idx:12;	/* EOP index in Tx ring */
115 	uint32_t	pad1:20;
116 
117 	uint32_t	pad2:32;
118 	uint32_t	pad3:32;
119 
120 	uint32_t	rsvd:24;
121 	uint32_t	type:7;
122 	uint32_t	gen:1;
123 } __packed;
124 
125 struct vmxnet3_rxdesc {
126 	uint64_t	addr;
127 
128 	uint32_t	len:14;
129 	uint32_t	btype:1;	/* Buffer type */
130 	uint32_t	dtype:1;	/* Descriptor type */
131 	uint32_t	rsvd:15;
132 	uint32_t	gen:1;
133 
134 	uint32_t	pad1:32;
135 } __packed;
136 
137 /* Buffer types */
138 #define VMXNET3_BTYPE_HEAD	0	/* Head only */
139 #define VMXNET3_BTYPE_BODY	1	/* Body only */
140 
141 struct vmxnet3_rxcompdesc {
142 	uint32_t	rxd_idx:12;	/* Rx descriptor index */
143 	uint32_t	pad1:2;
144 	uint32_t	eop:1;		/* End of packet */
145 	uint32_t	sop:1;		/* Start of packet */
146 	uint32_t	qid:10;
147 	uint32_t	rss_type:4;
148 	uint32_t	no_csum:1;	/* No checksum calculated */
149 	uint32_t	pad2:1;
150 
151 	uint32_t	rss_hash:32;	/* RSS hash value */
152 
153 	uint32_t	len:14;
154 	uint32_t	error:1;
155 	uint32_t	vlan:1;		/* 802.1Q VLAN frame */
156 	uint32_t	vtag:16;	/* VLAN tag */
157 
158 	uint32_t	csum:16;
159 	uint32_t	csum_ok:1;	/* TCP/UDP checksum ok */
160 	uint32_t	udp:1;
161 	uint32_t	tcp:1;
162 	uint32_t	ipcsum_ok:1;	/* IP checksum OK */
163 	uint32_t	ipv6:1;
164 	uint32_t	ipv4:1;
165 	uint32_t	fragment:1;	/* IP fragment */
166 	uint32_t	fcs:1;		/* Frame CRC correct */
167 	uint32_t	type:7;
168 	uint32_t	gen:1;
169 } __packed;
170 
171 #define VMXNET3_RCD_RSS_TYPE_NONE	0
172 #define VMXNET3_RCD_RSS_TYPE_IPV4	1
173 #define VMXNET3_RCD_RSS_TYPE_TCPIPV4	2
174 #define VMXNET3_RCD_RSS_TYPE_IPV6	3
175 #define VMXNET3_RCD_RSS_TYPE_TCPIPV6	4
176 
177 #define VMXNET3_REV1_MAGIC	0XBABEFEE1
178 
179 #define VMXNET3_GOS_UNKNOWN	0x00
180 #define VMXNET3_GOS_LINUX	0x04
181 #define VMXNET3_GOS_WINDOWS	0x08
182 #define VMXNET3_GOS_SOLARIS	0x0C
183 #define VMXNET3_GOS_FREEBSD	0x10
184 #define VMXNET3_GOS_PXE		0x14
185 
186 #define VMXNET3_GOS_32BIT	0x01
187 #define VMXNET3_GOS_64BIT	0x02
188 
189 #define VMXNET3_MAX_TX_QUEUES	8
190 #define VMXNET3_MAX_RX_QUEUES	16
191 #define VMXNET3_MAX_INTRS \
192     (VMXNET3_MAX_TX_QUEUES + VMXNET3_MAX_RX_QUEUES + 1)
193 
194 #define VMXNET3_ICTRL_DISABLE_ALL	0x01
195 
196 #define VMXNET3_RXMODE_UCAST	0x01
197 #define VMXNET3_RXMODE_MCAST	0x02
198 #define VMXNET3_RXMODE_BCAST	0x04
199 #define VMXNET3_RXMODE_ALLMULTI	0x08
200 #define VMXNET3_RXMODE_PROMISC	0x10
201 
202 #define VMXNET3_EVENT_RQERROR	0x01
203 #define VMXNET3_EVENT_TQERROR	0x02
204 #define VMXNET3_EVENT_LINK	0x04
205 #define VMXNET3_EVENT_DIC	0x08
206 #define VMXNET3_EVENT_DEBUG	0x10
207 
208 #define VMXNET3_MIN_MTU		60
209 #define VMXNET3_MAX_MTU		9000
210 
211 /* Interrupt mask mode. */
212 #define VMXNET3_IMM_AUTO	0x00
213 #define VMXNET3_IMM_ACTIVE	0x01
214 #define VMXNET3_IMM_LAZY	0x02
215 
216 /* Interrupt type. */
217 #define VMXNET3_IT_AUTO		0x00
218 #define VMXNET3_IT_LEGACY	0x01
219 #define VMXNET3_IT_MSI		0x02
220 #define VMXNET3_IT_MSIX		0x03
221 
222 struct vmxnet3_driver_shared {
223 	uint32_t	magic;
224 	uint32_t	pad1;
225 
226 	/* Misc. control */
227 	uint32_t	version;		/* Driver version */
228 	uint32_t	guest;			/* Guest OS */
229 	uint32_t	vmxnet3_revision;	/* Supported VMXNET3 revision */
230 	uint32_t	upt_version;		/* Supported UPT version */
231 	uint64_t	upt_features;
232 	uint64_t	driver_data;
233 	uint64_t	queue_shared;
234 	uint32_t	driver_data_len;
235 	uint32_t	queue_shared_len;
236 	uint32_t	mtu;
237 	uint16_t	nrxsg_max;
238 	uint8_t		ntxqueue;
239 	uint8_t		nrxqueue;
240 	uint32_t	reserved1[4];
241 
242 	/* Interrupt control */
243 	uint8_t		automask;
244 	uint8_t		nintr;
245 	uint8_t		evintr;
246 	uint8_t		modlevel[VMXNET3_MAX_INTRS];
247 	uint32_t	ictrl;
248 	uint32_t	reserved2[2];
249 
250 	/* Receive filter parameters */
251 	uint32_t	rxmode;
252 	uint16_t	mcast_tablelen;
253 	uint16_t	pad2;
254 	uint64_t	mcast_table;
255 	uint32_t	vlan_filter[4096 / 32];
256 
257 	struct {
258 		uint32_t version;
259 		uint32_t len;
260 		uint64_t paddr;
261 	}		rss, pm, plugin;
262 
263 	uint32_t	event;
264 	uint32_t	reserved3[5];
265 } __packed;
266 
267 struct vmxnet3_txq_shared {
268 	/* Control */
269 	uint32_t	npending;
270 	uint32_t	intr_threshold;
271 	uint64_t	reserved1;
272 
273 	/* Config */
274 	uint64_t	cmd_ring;
275 	uint64_t	data_ring;
276 	uint64_t	comp_ring;
277 	uint64_t	driver_data;
278 	uint64_t	reserved2;
279 	uint32_t	cmd_ring_len;
280 	uint32_t	data_ring_len;
281 	uint32_t	comp_ring_len;
282 	uint32_t	driver_data_len;
283 	uint8_t		intr_idx;
284 	uint8_t		pad1[7];
285 
286 	/* Queue status */
287 	uint8_t		stopped;
288 	uint8_t		pad2[3];
289 	uint32_t	error;
290 
291 	struct		UPT1_TxStats stats;
292 
293 	uint8_t		pad3[88];
294 } __packed;
295 
296 struct vmxnet3_rxq_shared {
297 	uint8_t		update_rxhead;
298 	uint8_t		pad1[7];
299 	uint64_t	reserved1;
300 
301 	uint64_t	cmd_ring[2];
302 	uint64_t	comp_ring;
303 	uint64_t	driver_data;
304 	uint64_t	reserved2;
305 	uint32_t	cmd_ring_len[2];
306 	uint32_t	comp_ring_len;
307 	uint32_t	driver_data_len;
308 	uint8_t		intr_idx;
309 	uint8_t		pad2[7];
310 
311 	uint8_t		stopped;
312 	uint8_t		pad3[3];
313 	uint32_t	error;
314 
315 	struct		UPT1_RxStats stats;
316 
317 	uint8_t		pad4[88];
318 } __packed;
319 
320 #define UPT1_RSS_HASH_TYPE_NONE		0x00
321 #define UPT1_RSS_HASH_TYPE_IPV4		0x01
322 #define UPT1_RSS_HASH_TYPE_TCP_IPV4	0x02
323 #define UPT1_RSS_HASH_TYPE_IPV6		0x04
324 #define UPT1_RSS_HASH_TYPE_TCP_IPV6	0x08
325 
326 #define UPT1_RSS_HASH_FUNC_NONE		0x00
327 #define UPT1_RSS_HASH_FUNC_TOEPLITZ	0x01
328 
329 #define UPT1_RSS_MAX_KEY_SIZE		40
330 #define UPT1_RSS_MAX_IND_TABLE_SIZE	128
331 
332 struct vmxnet3_rss_shared {
333 	uint16_t		hash_type;
334 	uint16_t		hash_func;
335 	uint16_t		hash_key_size;
336 	uint16_t		ind_table_size;
337 	uint8_t			hash_key[UPT1_RSS_MAX_KEY_SIZE];
338 	uint8_t			ind_table[UPT1_RSS_MAX_IND_TABLE_SIZE];
339 } __packed;
340 
341 #endif /* _IF_VMXREG_H */
342