xref: /freebsd/sys/dev/sge/if_sgereg.h (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 2008, 2009, 2010 Nikolay Denev <ndenev@gmail.com>
5  * Copyright (c) 2007, 2008 Alexander Pohoyda <alexander.pohoyda@gmx.net>
6  * Copyright (c) 1997, 1998, 1999
7  *      Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  * 3. All advertising materials mentioning features or use of this software
18  *    must display the following acknowledgement:
19  *      This product includes software developed by Bill Paul.
20  * 4. Neither the name of the author nor the names of any co-contributors
21  *    may be used to endorse or promote products derived from this software
22  *    without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS''
25  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
27  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL AUTHORS OR
28  * THE VOICES IN THEIR HEADS BE LIABLE FOR ANY DIRECT, INDIRECT,
29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
33  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
35  * OF THE POSSIBILITY OF SUCH DAMAGE.
36  *
37  * $FreeBSD$
38  */
39 
40 #ifndef _IF_SGEREG_H
41 #define	_IF_SGEREG_H
42 
43 /*
44  * SiS PCI vendor ID.
45  */
46 #define	SIS_VENDORID		0x1039
47 
48 /*
49  * SiS PCI device IDs
50  */
51 #define	SIS_DEVICEID_190	0x0190
52 #define	SIS_DEVICEID_191	0x0191
53 
54 #define	TX_CTL			0x00
55 #define	TX_DESC			0x04
56 #define	Reserved0		0x08
57 #define	TX_NEXT			0x0c
58 
59 #define	RX_CTL			0x10
60 #define	RX_DESC			0x14
61 #define	Reserved1		0x18
62 #define	RX_NEXT			0x1c
63 
64 #define	IntrStatus		0x20
65 #define	IntrMask		0x24
66 #define	IntrControl		0x28
67 #define	IntrTimer		0x2c
68 
69 #define	PMControl		0x30
70 #define	Reserved2		0x34
71 #define	ROMControl		0x38
72 #define	ROMInterface		0x3c
73 #define	StationControl		0x40
74 #define	GMIIControl		0x44
75 #define	GMacIOCR		0x48
76 #define	GMacIOCTL		0x4c
77 #define	TxMacControl		0x50
78 #define	TxMacTimeLimit		0x54
79 #define	RGMIIDelay		0x58
80 #define	Reserved3		0x5c
81 #define	RxMacControl		0x60	/* 1  WORD */
82 #define	RxMacAddr		0x62	/* 6x BYTE */
83 #define	RxHashTable		0x68	/* 1 LONG */
84 #define	RxHashTable2		0x6c	/* 1 LONG */
85 #define	RxWakeOnLan		0x70
86 #define	RxWakeOnLanData		0x74
87 #define	RxMPSControl		0x78
88 #define	Reserved4		0x7c
89 
90 /*
91  * IntrStatus Register Content
92  */
93 #define	INTR_SOFT		0x40000000
94 #define	INTR_TIMER		0x20000000
95 #define	INTR_PAUSE_FRAME	0x00080000
96 #define	INTR_MAGIC_FRAME	0x00040000
97 #define	INTR_WAKE_FRAME		0x00020000
98 #define	INTR_LINK		0x00010000
99 #define	INTR_RX_IDLE		0x00000080
100 #define	INTR_RX_DONE		0x00000040
101 #define	INTR_TXQ1_IDLE		0x00000020
102 #define	INTR_TXQ1_DONE		0x00000010
103 #define	INTR_TX_IDLE		0x00000008
104 #define	INTR_TX_DONE		0x00000004
105 #define	INTR_RX_HALT		0x00000002
106 #define	INTR_TX_HALT		0x00000001
107 
108 #define	SGE_INTRS							\
109 	(INTR_RX_IDLE | INTR_RX_DONE | INTR_TXQ1_IDLE |			\
110 	 INTR_TXQ1_DONE |INTR_TX_IDLE | INTR_TX_DONE |			\
111 	 INTR_TX_HALT | INTR_RX_HALT)
112 
113 /*
114  * RxStatusDesc Register Content
115  */
116 #define	RxRES			0x00200000
117 #define	RxCRC			0x00080000
118 #define	RxRUNT			0x00100000
119 #define	RxRWT			0x00400000
120 
121 /*
122  * RX_CTL Register Content
123  */
124 #define	RX_CTL_POLL		0x00000010
125 #define	RX_CTL_ENB		0x00000001
126 
127 /*
128  * TX_CTL Register Content
129  */
130 #define	TX_CTL_POLL		0x00000010
131 #define	TX_CTL_ENB		0x00000001
132 
133 /*
134  * RxMacControl Register Content
135  */
136 #define	AcceptBroadcast		0x0800
137 #define	AcceptMulticast		0x0400
138 #define	AcceptMyPhys		0x0200
139 #define	AcceptAllPhys		0x0100
140 #define	AcceptErr		0x0020
141 #define	AcceptRunt		0x0010
142 #define	RXMAC_STRIP_VLAN	0x0020
143 #define	RXMAC_STRIP_FCS		0x0010
144 #define	RXMAC_PAD_ENB		0x0004
145 #define	RXMAC_CSUM_ENB		0x0002
146 
147 #define	SGE_RX_PAD_BYTES	10
148 
149 /* Station control register. */
150 #define	SC_LOOPBACK		0x80000000
151 #define	SC_RGMII		0x00008000
152 #define	SC_FDX			0x00001000
153 #define	SC_SPEED_MASK		0x00000c00
154 #define	SC_SPEED_10		0x00000400
155 #define	SC_SPEED_100		0x00000800
156 #define	SC_SPEED_1000		0x00000c00
157 
158 /*
159  * Gigabit Media Independent Interface CTL register
160  */
161 #define	GMI_DATA		0xffff0000
162 #define	GMI_DATA_SHIFT		16
163 #define	GMI_REG			0x0000f800
164 #define	GMI_REG_SHIFT		11
165 #define	GMI_PHY			0x000007c0
166 #define	GMI_PHY_SHIFT		6
167 #define	GMI_OP_WR		0x00000020
168 #define	GMI_OP_RD		0x00000000
169 #define	GMI_REQ			0x00000010
170 #define	GMI_MDIO		0x00000008
171 #define	GMI_MDDIR		0x00000004
172 #define	GMI_MDC			0x00000002
173 #define	GMI_MDEN		0x00000001
174 
175 /* Tx descriptor command bits. */
176 #define	TDC_OWN			0x80000000
177 #define	TDC_INTR		0x40000000
178 #define	TDC_THOL3		0x30000000
179 #define	TDC_THOL2		0x20000000
180 #define	TDC_THOL1		0x10000000
181 #define	TDC_THOL0		0x00000000
182 #define	TDC_LS			0x08000000
183 #define	TDC_IP_CSUM		0x04000000
184 #define	TDC_TCP_CSUM		0x02000000
185 #define	TDC_UDP_CSUM		0x01000000
186 #define	TDC_BST			0x00800000
187 #define	TDC_EXT			0x00400000
188 #define	TDC_DEF			0x00200000
189 #define	TDC_BKF			0x00100000
190 #define	TDC_CRS			0x00080000
191 #define	TDC_COL			0x00040000
192 #define	TDC_CRC			0x00020000
193 #define	TDC_PAD			0x00010000
194 #define	TDC_VLAN_MASK		0x0000FFFF
195 
196 #define	SGE_TX_INTR_FRAMES	32
197 
198 /*
199  * TX descriptor status bits.
200  */
201 #define	TDS_INS_VLAN		0x80000000
202 #define	TDS_OWC			0x00080000
203 #define	TDS_ABT			0x00040000
204 #define	TDS_FIFO		0x00020000
205 #define	TDS_CRS			0x00010000
206 #define	TDS_COLLS		0x0000ffff
207 #define	SGE_TX_ERROR(x)		((x) & (TDS_OWC | TDS_ABT | TDS_FIFO | TDS_CRS))
208 #define	TX_ERR_BITS		"\20"				\
209 				"\21CRS\22FIFO\23ABT\24OWC"
210 
211 /* Rx descriptor command bits. */
212 #define	RDC_OWN			0x80000000
213 #define	RDC_INTR		0x40000000
214 #define	RDC_IP_CSUM		0x20000000
215 #define	RDC_TCP_CSUM		0x10000000
216 #define	RDC_UDP_CSUM		0x08000000
217 #define	RDC_IP_CSUM_OK		0x04000000
218 #define	RDC_TCP_CSUM_OK		0x02000000
219 #define	RDC_UDP_CSUM_OK		0x01000000
220 #define	RDC_WAKEUP		0x00400000
221 #define	RDC_MAGIC		0x00200000
222 #define	RDC_PAUSE		0x00100000
223 #define	RDC_BCAST		0x000c0000
224 #define	RDC_MCAST		0x00080000
225 #define	RDC_UCAST		0x00040000
226 #define	RDC_CRCOFF		0x00020000
227 #define	RDC_PREADD		0x00010000
228 #define	RDC_VLAN_MASK		0x0000FFFF
229 
230 /*
231  * RX descriptor status bits
232  */
233 #define	RDS_VLAN		0x80000000
234 #define	RDS_DESCS		0x3f000000
235 #define	RDS_ABORT		0x00800000
236 #define	RDS_SHORT		0x00400000
237 #define	RDS_LIMIT		0x00200000
238 #define	RDS_MIIER		0x00100000
239 #define	RDS_OVRUN		0x00080000
240 #define	RDS_NIBON		0x00040000
241 #define	RDS_COLON		0x00020000
242 #define	RDS_CRCOK		0x00010000
243 #define	SGE_RX_ERROR(x)							\
244         ((x) & (RDS_COLON | RDS_NIBON | RDS_OVRUN | RDS_MIIER |		\
245 	RDS_LIMIT | RDS_SHORT | RDS_ABORT))
246 #define	SGE_RX_NSEGS(x)		(((x) & RDS_DESCS) >> 24)
247 #define	RX_ERR_BITS 		"\20"					\
248 				"\21CRCOK\22COLON\23NIBON\24OVRUN"	\
249 				"\25MIIER\26LIMIT\27SHORT\30ABORT"	\
250 				"\40VLAN"
251 
252 #define	RING_END		0x80000000
253 #define	SGE_RX_BYTES(x)		((x) & 0xFFFF)
254 #define	SGE_INC(x, y)		(x) = (((x) + 1) % y)
255 
256 /* Taken from Solaris driver */
257 #define	EI_DATA			0xffff0000
258 #define	EI_DATA_SHIFT		16
259 #define	EI_OFFSET		0x0000fc00
260 #define	EI_OFFSET_SHIFT		10
261 #define	EI_OP			0x00000300
262 #define	EI_OP_SHIFT		8
263 #define	EI_OP_RD		(2 << EI_OP_SHIFT)
264 #define	EI_OP_WR		(1 << EI_OP_SHIFT)
265 #define	EI_REQ			0x00000080
266 #define	EI_DO			0x00000008
267 #define	EI_DI			0x00000004
268 #define	EI_CLK			0x00000002
269 #define	EI_CS			0x00000001
270 
271 /*
272  * EEPROM Addresses
273  */
274 #define	EEPROMSignature		0x00
275 #define	EEPROMCLK		0x01
276 #define	EEPROMInfo		0x02
277 #define	EEPROMMACAddr		0x03
278 
279 struct sge_desc {
280 	uint32_t	sge_sts_size;
281 	uint32_t	sge_cmdsts;
282 	uint32_t	sge_ptr;
283 	uint32_t	sge_flags;
284 };
285 
286 #define	SGE_RX_RING_CNT		256 /* [8, 1024] */
287 #define	SGE_TX_RING_CNT		256 /* [8, 8192] */
288 #define	SGE_DESC_ALIGN		16
289 #define	SGE_MAXTXSEGS		35
290 #define	SGE_TSO_MAXSIZE		(65535 + sizeof(struct ether_vlan_header))
291 #define	SGE_TSO_MAXSEGSIZE	4096
292 #define	SGE_RX_BUF_ALIGN	sizeof(uint64_t)
293 
294 #define	SGE_RX_RING_SZ		(SGE_RX_RING_CNT * sizeof(struct sge_desc))
295 #define	SGE_TX_RING_SZ		(SGE_TX_RING_CNT * sizeof(struct sge_desc))
296 #define	SGE_ADDR_LO(x)		((uint64_t) (x) & 0xFFFFFFFF)
297 
298 struct sge_list_data {
299 	struct sge_desc		*sge_rx_ring;
300 	struct sge_desc		*sge_tx_ring;
301 	/* physical bus addresses of sge_rx_ring/sge_tx_ring */
302 	bus_addr_t		sge_rx_paddr;
303 	bus_addr_t		sge_tx_paddr;
304 };
305 
306 struct sge_txdesc {
307 	struct mbuf		*tx_m;
308 	bus_dmamap_t		tx_dmamap;
309 	int			tx_ndesc;
310 };
311 
312 struct sge_rxdesc {
313 	struct mbuf		*rx_m;
314 	bus_dmamap_t		rx_dmamap;
315 };
316 
317 struct sge_chain_data {
318 	bus_dma_tag_t		sge_tag;
319 	bus_dma_tag_t		sge_rx_tag;
320 	bus_dma_tag_t		sge_tx_tag;
321 	bus_dmamap_t		sge_rx_dmamap;
322 	bus_dmamap_t		sge_tx_dmamap;
323 	bus_dma_tag_t		sge_txmbuf_tag;
324 	bus_dma_tag_t		sge_rxmbuf_tag;
325 	struct sge_txdesc	sge_txdesc[SGE_TX_RING_CNT];
326 	struct sge_rxdesc	sge_rxdesc[SGE_RX_RING_CNT];
327 	bus_dmamap_t		sge_rx_spare_map;
328 	int			sge_rx_cons;
329 	int			sge_tx_prod;
330 	int			sge_tx_cons;
331 	int			sge_tx_cnt;
332 };
333 
334 struct sge_type {
335 	uint16_t		sge_vid;
336 	uint16_t		sge_did;
337 	char			*sge_name;
338 };
339 
340 struct sge_softc {
341 	struct ifnet		*sge_ifp;	/* interface info */
342 	struct resource		*sge_res;
343 	int			sge_res_id;
344 	int			sge_res_type;
345 	struct resource		*sge_irq;
346 	void			*sge_intrhand;
347 	device_t		sge_dev;
348 	device_t		sge_miibus;
349 	uint8_t			sge_rev;
350 	struct sge_list_data	sge_ldata;
351 	struct sge_chain_data	sge_cdata;
352 	struct callout		sge_stat_ch;
353 	int			sge_timer;
354 	int			sge_flags;
355 #define	SGE_FLAG_FASTETHER	0x0001
356 #define	SGE_FLAG_SIS190		0x0002
357 #define	SGE_FLAG_RGMII		0x0010
358 #define	SGE_FLAG_SPEED_1000	0x2000
359 #define	SGE_FLAG_FDX		0x4000
360 #define	SGE_FLAG_LINK		0x8000
361 	int			sge_if_flags;
362 	int			sge_intrcontrol;
363 	int			sge_intrtimer;
364 	struct mtx		sge_mtx;
365 };
366 
367 #define	SGE_LOCK(_sc)		mtx_lock(&(_sc)->sge_mtx)
368 #define	SGE_UNLOCK(_sc)		mtx_unlock(&(_sc)->sge_mtx)
369 #define	SGE_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->sge_mtx, MA_OWNED)
370 
371 #define	SGE_TIMEOUT		1000
372 
373 #endif /* _IF_SGEREG_H */
374