xref: /freebsd/sys/dev/stge/if_stgereg.h (revision aa1a8ff2d6dbc51ef058f46f3db5a8bb77967145)
1 /*	$NetBSD: if_stgereg.h,v 1.3 2003/02/10 21:10:07 christos Exp $	*/
2 
3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
5  *
6  * Copyright (c) 2001 The NetBSD Foundation, Inc.
7  * All rights reserved.
8  *
9  * This code is derived from software contributed to The NetBSD Foundation
10  * by Jason R. Thorpe.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions and the following disclaimer.
17  * 2. Redistributions in binary form must reproduce the above copyright
18  *    notice, this list of conditions and the following disclaimer in the
19  *    documentation and/or other materials provided with the distribution.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31  * POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 
35 /*
36  * Sundance Technology PCI vendor ID
37  */
38 #define	VENDOR_SUNDANCETI	0x13f0
39 
40 /*
41  * Tamarack Microelectronics PCI vendor ID
42  */
43 #define	VENDOR_TAMARACK		0x143d
44 
45 /*
46  * D-Link Systems PCI vendor ID
47  */
48 #define	VENDOR_DLINK		0x1186
49 
50 /*
51  * Antares Microsystems PCI vendor ID
52  */
53 #define	VENDOR_ANTARES		0x1754
54 
55 /*
56  * Sundance Technology device ID
57  */
58 #define	DEVICEID_SUNDANCETI_ST1023	0x1023
59 #define	DEVICEID_SUNDANCETI_ST2021	0x2021
60 #define	DEVICEID_TAMARACK_TC9021	0x1021
61 #define	DEVICEID_TAMARACK_TC9021_ALT	0x9021
62 
63 /*
64  * D-Link Systems device ID
65  */
66 #define	DEVICEID_DLINK_DL4000		0x4000
67 
68 /*
69  * Antares Microsystems device ID
70  */
71 #define	DEVICEID_ANTARES_TC9021		0x1021
72 
73 /*
74  * Register description for the Sundance Tech. TC9021 10/100/1000
75  * Ethernet controller.
76  *
77  * Note that while DMA addresses are all in 64-bit fields, only
78  * the lower 40 bits of a DMA address are valid.
79  */
80 #if (BUS_SPACE_MAXADDR < 0xFFFFFFFFFF)
81 #define	STGE_DMA_MAXADDR	BUS_SPACE_MAXADDR
82 #else
83 #define	STGE_DMA_MAXADDR	0xFFFFFFFFFF
84 #endif
85 
86 /*
87  * Register access macros
88  */
89 #define CSR_WRITE_4(_sc, reg, val)	\
90 	bus_write_4((_sc)->sc_res[0], (reg), (val))
91 #define CSR_WRITE_2(_sc, reg, val)	\
92 	bus_write_2((_sc)->sc_res[0], (reg), (val))
93 #define CSR_WRITE_1(_sc, reg, val)	\
94 	bus_write_1((_sc)->sc_res[0], (reg), (val))
95 
96 #define CSR_READ_4(_sc, reg)		\
97 	bus_read_4((_sc)->sc_res[0], (reg))
98 #define CSR_READ_2(_sc, reg)		\
99 	bus_read_2((_sc)->sc_res[0], (reg))
100 #define CSR_READ_1(_sc, reg)		\
101 	bus_read_1((_sc)->sc_res[0], (reg))
102 
103 #define	CSR_BARRIER(_sc, reg, length, flags)				\
104 	bus_barrier((_sc)->sc_res[0], reg, length, flags)
105 
106 /*
107  * TC9021 buffer fragment descriptor.
108  */
109 struct stge_frag {
110 	uint64_t	frag_word0;	/* address, length */
111 };
112 
113 #define	FRAG_ADDR(x)	(((uint64_t)(x)) << 0)
114 #define	FRAG_ADDR_MASK	FRAG_ADDR(0xfffffffffULL)
115 #define	FRAG_LEN(x)	(((uint64_t)(x)) << 48)
116 #define	FRAG_LEN_MASK	FRAG_LEN(0xffffULL)
117 
118 /*
119  * TC9021 Transmit Frame Descriptor.  Note the number of fragments
120  * here is arbitrary, but we can't have any more than 15.
121  */
122 #define	STGE_NTXFRAGS	15
123 struct stge_tfd {
124 	uint64_t	tfd_next;	/* next TFD in list */
125 	uint64_t	tfd_control;	/* control bits */
126 					/* the buffer fragments */
127 	struct stge_frag tfd_frags[STGE_NTXFRAGS];
128 };
129 
130 #define	TFD_FrameId(x)		((x) << 0)
131 #define	TFD_FrameId_MAX		0xffff
132 #define	TFD_WordAlign(x)	((x) << 16)
133 #define	TFD_WordAlign_dword	0		/* align to dword in TxFIFO */
134 #define	TFD_WordAlign_word	2		/* align to word in TxFIFO */
135 #define	TFD_WordAlign_disable	1		/* disable alignment */
136 #define	TFD_TCPChecksumEnable	(1ULL << 18)
137 #define	TFD_UDPChecksumEnable	(1ULL << 19)
138 #define	TFD_IPChecksumEnable	(1ULL << 20)
139 #define	TFD_FcsAppendDisable	(1ULL << 21)
140 #define	TFD_TxIndicate		(1ULL << 22)
141 #define	TFD_TxDMAIndicate	(1ULL << 23)
142 #define	TFD_FragCount(x)	((x) << 24)
143 #define	TFD_VLANTagInsert	(1ULL << 28)
144 #define	TFD_TFDDone		(1ULL << 31)
145 #define	TFD_VID(x)		(((uint64_t)(x)) << 32)
146 #define	TFD_CFI			(1ULL << 44)
147 #define	TFD_UserPriority(x)	(((uint64_t)(x)) << 45)
148 
149 /*
150  * TC9021 Receive Frame Descriptor.  Each RFD has a single fragment
151  * in it, and the chip tells us the beginning and end of the frame.
152  */
153 struct stge_rfd {
154 	uint64_t	rfd_next;	/* next RFD in list */
155 	uint64_t	rfd_status;	/* status bits */
156 	struct stge_frag rfd_frag;	/* the buffer */
157 };
158 
159 /* Low word of rfd_status */
160 #define RFD_RxStatus(x)		((x) & 0xffffffff)
161 #define	RFD_RxDMAFrameLen(x)	((x) & 0xffff)
162 #define	RFD_RxFIFOOverrun	0x00010000
163 #define	RFD_RxRuntFrame		0x00020000
164 #define	RFD_RxAlignmentError	0x00040000
165 #define	RFD_RxFCSError		0x00080000
166 #define	RFD_RxOversizedFrame	0x00100000
167 #define	RFD_RxLengthError	0x00200000
168 #define	RFD_VLANDetected	0x00400000
169 #define	RFD_TCPDetected		0x00800000
170 #define	RFD_TCPError		0x01000000
171 #define	RFD_UDPDetected		0x02000000
172 #define	RFD_UDPError		0x04000000
173 #define	RFD_IPDetected		0x08000000
174 #define	RFD_IPError		0x10000000
175 #define	RFD_FrameStart		0x20000000
176 #define	RFD_FrameEnd		0x40000000
177 #define	RFD_RFDDone		0x80000000
178 /* High word of rfd_status */
179 #define	RFD_TCI(x)		((((uint64_t)(x)) >> 32) & 0xffff)
180 
181 /*
182  * EEPROM offsets.
183  */
184 #define	STGE_EEPROM_ConfigParam		0x00
185 #define	STGE_EEPROM_AsicCtrl		0x01
186 #define	STGE_EEPROM_SubSystemVendorId	0x02
187 #define	STGE_EEPROM_SubSystemId		0x03
188 #define	STGE_EEPROM_LEDMode		0x06
189 #define	STGE_EEPROM_StationAddress0	0x10
190 #define	STGE_EEPROM_StationAddress1	0x11
191 #define	STGE_EEPROM_StationAddress2	0x12
192 
193 /*
194  * The TC9021 register space.
195  */
196 
197 #define	STGE_DMACtrl			0x00
198 #define	DMAC_RxDMAComplete		(1U << 3)
199 #define	DMAC_RxDMAPollNow		(1U << 4)
200 #define	DMAC_TxDMAComplete		(1U << 11)
201 #define	DMAC_TxDMAPollNow		(1U << 12)
202 #define	DMAC_TxDMAInProg		(1U << 15)
203 #define	DMAC_RxEarlyDisable		(1U << 16)
204 #define	DMAC_MWIDisable			(1U << 18)
205 #define	DMAC_TxWriteBackDisable		(1U << 19)
206 #define	DMAC_TxBurstLimit(x)		((x) << 20)
207 #define	DMAC_TargetAbort		(1U << 30)
208 #define	DMAC_MasterAbort		(1U << 31)
209 
210 #define	STGE_RxDMAStatus		0x08
211 
212 #define	STGE_TFDListPtrLo		0x10
213 
214 #define	STGE_TFDListPtrHi		0x14
215 
216 #define	STGE_TxDMABurstThresh		0x18	/* 8-bit */
217 
218 #define	STGE_TxDMAUrgentThresh		0x19	/* 8-bit */
219 
220 #define	STGE_TxDMAPollPeriod		0x1a	/* 8-bit, 320ns increments */
221 
222 #define	STGE_RFDListPtrLo		0x1c
223 
224 #define	STGE_RFDListPtrHi		0x20
225 
226 #define	STGE_RxDMABurstThresh		0x24	/* 8-bit */
227 
228 #define	STGE_RxDMAUrgentThresh		0x25	/* 8-bit */
229 
230 #define	STGE_RxDMAPollPeriod		0x26	/* 8-bit, 320ns increments */
231 
232 #define	STGE_RxDMAIntCtrl		0x28
233 #define	RDIC_RxFrameCount(x)		((x) & 0xff)
234 #define	RDIC_PriorityThresh(x)		((x) << 10)
235 #define	RDIC_RxDMAWaitTime(x)		((x) << 16)
236 /*
237  * Number of receive frames transferred via DMA before a Rx interrupt is issued.
238  */
239 #define	STGE_RXINT_NFRAME_DEFAULT	8
240 #define	STGE_RXINT_NFRAME_MIN		1
241 #define	STGE_RXINT_NFRAME_MAX		255
242 /*
243  * Maximum amount of time (in 64ns increments) to wait before issuing a Rx
244  * interrupt if number of frames recevied is less than STGE_RXINT_NFRAME
245  * (STGE_RXINT_NFRAME_MIN <= STGE_RXINT_NFRAME <= STGE_RXINT_NFRAME_MAX)
246  */
247 #define	STGE_RXINT_DMAWAIT_DEFAULT	30	/* 30us */
248 #define	STGE_RXINT_DMAWAIT_MIN		0
249 #define	STGE_RXINT_DMAWAIT_MAX		4194
250 #define	STGE_RXINT_USECS2TICK(x)	(((x) * 1000)/64)
251 
252 #define	STGE_DebugCtrl			0x2c	/* 16-bit */
253 #define	DC_GPIO0Ctrl			(1U << 0)
254 #define	DC_GPIO1Ctrl			(1U << 1)
255 #define	DC_GPIO0			(1U << 2)
256 #define	DC_GPIO1			(1U << 3)
257 
258 #define	STGE_AsicCtrl			0x30
259 #define	AC_ExpRomDisable		(1U << 0)
260 #define	AC_ExpRomSize			(1U << 1)
261 #define	AC_PhySpeed10			(1U << 4)
262 #define	AC_PhySpeed100			(1U << 5)
263 #define	AC_PhySpeed1000			(1U << 6)
264 #define	AC_PhyMedia			(1U << 7)
265 #define	AC_ForcedConfig(x)		((x) << 8)
266 #define	AC_ForcedConfig_MASK		AC_ForcedConfig(7)
267 #define	AC_D3ResetDisable		(1U << 11)
268 #define	AC_SpeedupMode			(1U << 13)
269 #define	AC_LEDMode			(1U << 14)
270 #define	AC_RstOutPolarity		(1U << 15)
271 #define	AC_GlobalReset			(1U << 16)
272 #define	AC_RxReset			(1U << 17)
273 #define	AC_TxReset			(1U << 18)
274 #define	AC_DMA				(1U << 19)
275 #define	AC_FIFO				(1U << 20)
276 #define	AC_Network			(1U << 21)
277 #define	AC_Host				(1U << 22)
278 #define	AC_AutoInit			(1U << 23)
279 #define	AC_RstOut			(1U << 24)
280 #define	AC_InterruptRequest		(1U << 25)
281 #define	AC_ResetBusy			(1U << 26)
282 #define	AC_LEDSpeed			(1U << 27)
283 #define	AC_LEDModeBit1			(1U << 29)
284 
285 #define	STGE_FIFOCtrl			0x38	/* 16-bit */
286 #define	FC_RAMTestMode			(1U << 0)
287 #define	FC_Transmitting			(1U << 14)
288 #define	FC_Receiving			(1U << 15)
289 
290 #define	STGE_RxEarlyThresh		0x3a	/* 16-bit */
291 
292 #define	STGE_FlowOffThresh		0x3c	/* 16-bit */
293 
294 #define	STGE_FlowOnTresh		0x3e	/* 16-bit */
295 
296 #define	STGE_TxStartThresh		0x44	/* 16-bit */
297 
298 #define	STGE_EepromData			0x48	/* 16-bit */
299 
300 #define	STGE_EepromCtrl			0x4a	/* 16-bit */
301 #define	EC_EepromAddress(x)		((x) & 0xff)
302 #define	EC_EepromOpcode(x)		((x) << 8)
303 #define	EC_OP_WE			0
304 #define	EC_OP_WR			1
305 #define	EC_OP_RR			2
306 #define	EC_OP_ER			3
307 #define	EC_EepromBusy			(1U << 15)
308 
309 #define	STGE_ExpRomAddr			0x4c
310 
311 #define	STGE_ExpRomData			0x50	/* 8-bit */
312 
313 #define	STGE_WakeEvent			0x51	/* 8-bit */
314 #define	WE_WakePktEnable		(1U << 0)
315 #define	WE_MagicPktEnable		(1U << 1)
316 #define	WE_LinkEventEnable		(1U << 2)
317 #define	WE_WakePolarity			(1U << 3)
318 #define	WE_WakePktEvent			(1U << 4)
319 #define	WE_MagicPktEvent		(1U << 5)
320 #define	WE_LinkEvent			(1U << 6)
321 #define	WE_WakeOnLanEnable		(1U << 7)
322 
323 #define	STGE_Countdown			0x54
324 #define	CD_Count(x)			((x) & 0xffff)
325 #define	CD_CountdownSpeed		(1U << 24)
326 #define	CD_CountdownMode		(1U << 25)
327 #define	CD_CountdownIntEnabled		(1U << 26)
328 
329 #define	STGE_IntStatusAck		0x5a	/* 16-bit */
330 
331 #define	STGE_IntEnable			0x5c	/* 16-bit */
332 
333 #define	STGE_IntStatus			0x5e	/* 16-bit */
334 
335 #define	IS_InterruptStatus		(1U << 0)
336 #define	IS_HostError			(1U << 1)
337 #define	IS_TxComplete			(1U << 2)
338 #define	IS_MACControlFrame		(1U << 3)
339 #define	IS_RxComplete			(1U << 4)
340 #define	IS_RxEarly			(1U << 5)
341 #define	IS_InRequested			(1U << 6)
342 #define	IS_UpdateStats			(1U << 7)
343 #define	IS_LinkEvent			(1U << 8)
344 #define	IS_TxDMAComplete		(1U << 9)
345 #define	IS_RxDMAComplete		(1U << 10)
346 #define	IS_RFDListEnd			(1U << 11)
347 #define	IS_RxDMAPriority		(1U << 12)
348 
349 #define	STGE_TxStatus			0x60
350 #define	TS_TxError			(1U << 0)
351 #define	TS_LateCollision		(1U << 2)
352 #define	TS_MaxCollisions		(1U << 3)
353 #define	TS_TxUnderrun			(1U << 4)
354 #define	TS_TxIndicateReqd		(1U << 6)
355 #define	TS_TxComplete			(1U << 7)
356 #define	TS_TxFrameId_get(x)		((x) >> 16)
357 
358 #define	STGE_MACCtrl			0x6c
359 #define	MC_IFSSelect(x)			((x) & 3)
360 #define	MC_IFS96bit			0
361 #define	MC_IFS1024bit			1
362 #define	MC_IFS1792bit			2
363 #define	MC_IFS4352bit			3
364 
365 #define	MC_DuplexSelect			(1U << 5)
366 #define	MC_RcvLargeFrames		(1U << 6)
367 #define	MC_TxFlowControlEnable		(1U << 7)
368 #define	MC_RxFlowControlEnable		(1U << 8)
369 #define	MC_RcvFCS			(1U << 9)
370 #define	MC_FIFOLoopback			(1U << 10)
371 #define	MC_MACLoopback			(1U << 11)
372 #define	MC_AutoVLANtagging		(1U << 12)
373 #define	MC_AutoVLANuntagging		(1U << 13)
374 #define	MC_CollisionDetect		(1U << 16)
375 #define	MC_CarrierSense			(1U << 17)
376 #define	MC_StatisticsEnable		(1U << 21)
377 #define	MC_StatisticsDisable		(1U << 22)
378 #define	MC_StatisticsEnabled		(1U << 23)
379 #define	MC_TxEnable			(1U << 24)
380 #define	MC_TxDisable			(1U << 25)
381 #define	MC_TxEnabled			(1U << 26)
382 #define	MC_RxEnable			(1U << 27)
383 #define	MC_RxDisable			(1U << 28)
384 #define	MC_RxEnabled			(1U << 29)
385 #define	MC_Paused			(1U << 30)
386 #define	MC_MASK				0x7fe33fa3
387 
388 #define	STGE_VLANTag			0x70
389 
390 #define STGE_PhySet			0x75	/* 8-bit */
391 #define	PS_MemLenb9b			(1U << 0)
392 #define	PS_MemLen			(1U << 1)
393 #define	PS_NonCompdet			(1U << 2)
394 
395 #define	STGE_PhyCtrl			0x76	/* 8-bit */
396 #define	PC_MgmtClk			(1U << 0)
397 #define	PC_MgmtData			(1U << 1)
398 #define	PC_MgmtDir			(1U << 2)	/* MAC->PHY */
399 #define	PC_PhyDuplexPolarity		(1U << 3)
400 #define	PC_PhyDuplexStatus		(1U << 4)
401 #define	PC_PhyLnkPolarity		(1U << 5)
402 #define	PC_LinkSpeed(x)			(((x) >> 6) & 3)
403 #define	PC_LinkSpeed_Down		0
404 #define	PC_LinkSpeed_10			1
405 #define	PC_LinkSpeed_100		2
406 #define	PC_LinkSpeed_1000		3
407 
408 #define	STGE_StationAddress0		0x78	/* 16-bit */
409 
410 #define	STGE_StationAddress1		0x7a	/* 16-bit */
411 
412 #define	STGE_StationAddress2		0x7c	/* 16-bit */
413 
414 #define	STGE_VLANHashTable		0x7e	/* 16-bit */
415 
416 #define	STGE_VLANId			0x80
417 
418 #define	STGE_MaxFrameSize		0x86
419 
420 #define	STGE_ReceiveMode		0x88	/* 16-bit */
421 #define	RM_ReceiveUnicast		(1U << 0)
422 #define	RM_ReceiveMulticast		(1U << 1)
423 #define	RM_ReceiveBroadcast		(1U << 2)
424 #define	RM_ReceiveAllFrames		(1U << 3)
425 #define	RM_ReceiveMulticastHash		(1U << 4)
426 #define	RM_ReceiveIPMulticast		(1U << 5)
427 #define	RM_ReceiveVLANMatch		(1U << 8)
428 #define	RM_ReceiveVLANHash		(1U << 9)
429 
430 #define	STGE_HashTable0			0x8c
431 
432 #define	STGE_HashTable1			0x90
433 
434 #define	STGE_RMONStatisticsMask		0x98	/* set to disable */
435 
436 #define	STGE_StatisticsMask		0x9c	/* set to disable */
437 
438 #define	STGE_RxJumboFrames		0xbc	/* 16-bit */
439 
440 #define	STGE_TCPCheckSumErrors		0xc0	/* 16-bit */
441 
442 #define	STGE_IPCheckSumErrors		0xc2	/* 16-bit */
443 
444 #define	STGE_UDPCheckSumErrors		0xc4	/* 16-bit */
445 
446 #define	STGE_TxJumboFrames		0xf4	/* 16-bit */
447 
448 /*
449  * TC9021 statistics.  Available memory and I/O mapped.
450  */
451 
452 #define	STGE_OctetRcvOk			0xa8
453 
454 #define	STGE_McstOctetRcvdOk		0xac
455 
456 #define	STGE_BcstOctetRcvdOk		0xb0
457 
458 #define	STGE_FramesRcvdOk		0xb4
459 
460 #define	STGE_McstFramesRcvdOk		0xb8
461 
462 #define	STGE_BcstFramesRcvdOk		0xbe	/* 16-bit */
463 
464 #define	STGE_MacControlFramesRcvd	0xc6	/* 16-bit */
465 
466 #define	STGE_FrameTooLongErrors		0xc8	/* 16-bit */
467 
468 #define	STGE_InRangeLengthErrors	0xca	/* 16-bit */
469 
470 #define	STGE_FramesCheckSeqErrors	0xcc	/* 16-bit */
471 
472 #define	STGE_FramesLostRxErrors		0xce	/* 16-bit */
473 
474 #define	STGE_OctetXmtdOk		0xd0
475 
476 #define	STGE_McstOctetXmtdOk		0xd4
477 
478 #define	STGE_BcstOctetXmtdOk		0xd8
479 
480 #define	STGE_FramesXmtdOk		0xdc
481 
482 #define	STGE_McstFramesXmtdOk		0xe0
483 
484 #define	STGE_FramesWDeferredXmt		0xe4
485 
486 #define	STGE_LateCollisions		0xe8
487 
488 #define	STGE_MultiColFrames		0xec
489 
490 #define	STGE_SingleColFrames		0xf0
491 
492 #define	STGE_BcstFramesXmtdOk		0xf6	/* 16-bit */
493 
494 #define	STGE_CarrierSenseErrors		0xf8	/* 16-bit */
495 
496 #define	STGE_MacControlFramesXmtd	0xfa	/* 16-bit */
497 
498 #define	STGE_FramesAbortXSColls		0xfc	/* 16-bit */
499 
500 #define	STGE_FramesWEXDeferal		0xfe	/* 16-bit */
501 
502 /*
503  * RMON-compatible statistics.  Only accessible if memory-mapped.
504  */
505 
506 #define	STGE_EtherStatsCollisions			0x100
507 
508 #define	STGE_EtherStatsOctetsTransmit			0x104
509 
510 #define	STGE_EtherStatsPktsTransmit			0x108
511 
512 #define	STGE_EtherStatsPkts64OctetsTransmit		0x10c
513 
514 #define	STGE_EtherStatsPkts64to127OctetsTransmit	0x110
515 
516 #define	STGE_EtherStatsPkts128to255OctetsTransmit	0x114
517 
518 #define	STGE_EtherStatsPkts256to511OctetsTransmit	0x118
519 
520 #define	STGE_EtherStatsPkts512to1023OctetsTransmit	0x11c
521 
522 #define	STGE_EtherStatsPkts1024to1518OctetsTransmit	0x120
523 
524 #define	STGE_EtherStatsCRCAlignErrors			0x124
525 
526 #define	STGE_EtherStatsUndersizePkts			0x128
527 
528 #define	STGE_EtherStatsFragments			0x12c
529 
530 #define	STGE_EtherStatsJabbers				0x130
531 
532 #define	STGE_EtherStatsOctets				0x134
533 
534 #define	STGE_EtherStatsPkts				0x138
535 
536 #define	STGE_EtherStatsPkts64Octets			0x13c
537 
538 #define	STGE_EtherStatsPkts65to127Octets		0x140
539 
540 #define	STGE_EtherStatsPkts128to255Octets		0x144
541 
542 #define	STGE_EtherStatsPkts256to511Octets		0x148
543 
544 #define	STGE_EtherStatsPkts512to1023Octets		0x14c
545 
546 #define	STGE_EtherStatsPkts1024to1518Octets		0x150
547 
548 /*
549  * Transmit descriptor list size.
550  */
551 #define	STGE_TX_RING_CNT	256
552 #define	STGE_TX_LOWAT		(STGE_TX_RING_CNT/32)
553 #define	STGE_TX_HIWAT		(STGE_TX_RING_CNT - STGE_TX_LOWAT)
554 
555 /*
556  * Receive descriptor list size.
557  */
558 #define	STGE_RX_RING_CNT	256
559 
560 #define	STGE_MAXTXSEGS		STGE_NTXFRAGS
561 
562 #define STGE_JUMBO_FRAMELEN	9022
563 #define STGE_JUMBO_MTU	\
564 	(STGE_JUMBO_FRAMELEN - ETHER_HDR_LEN - ETHER_CRC_LEN)
565 
566 struct stge_txdesc {
567 	struct mbuf *tx_m;		/* head of our mbuf chain */
568 	bus_dmamap_t tx_dmamap;		/* our DMA map */
569 	STAILQ_ENTRY(stge_txdesc) tx_q;
570 };
571 
572 STAILQ_HEAD(stge_txdq, stge_txdesc);
573 
574 struct stge_rxdesc {
575 	struct mbuf *rx_m;
576 	bus_dmamap_t rx_dmamap;
577 };
578 
579 #define	STGE_ADDR_LO(x)		((u_int64_t) (x) & 0xffffffff)
580 #define	STGE_ADDR_HI(x)		((u_int64_t) (x) >> 32)
581 
582 #define	STGE_RING_ALIGN		8
583 
584 struct stge_chain_data{
585 	bus_dma_tag_t		stge_parent_tag;
586 	bus_dma_tag_t		stge_tx_tag;
587 	struct stge_txdesc	stge_txdesc[STGE_TX_RING_CNT];
588 	struct stge_txdq	stge_txfreeq;
589 	struct stge_txdq	stge_txbusyq;
590 	bus_dma_tag_t		stge_rx_tag;
591 	struct stge_rxdesc	stge_rxdesc[STGE_RX_RING_CNT];
592 	bus_dma_tag_t		stge_tx_ring_tag;
593 	bus_dmamap_t		stge_tx_ring_map;
594 	bus_dma_tag_t		stge_rx_ring_tag;
595 	bus_dmamap_t		stge_rx_ring_map;
596 	bus_dmamap_t		stge_rx_sparemap;
597 
598 	int			stge_tx_prod;
599 	int			stge_tx_cons;
600 	int			stge_tx_cnt;
601 	int			stge_rx_cons;
602 #ifdef DEVICE_POLLING
603 	int			stge_rxcycles;
604 #endif
605 	int			stge_rxlen;
606 	struct mbuf		*stge_rxhead;
607 	struct mbuf		*stge_rxtail;
608 };
609 
610 struct stge_ring_data {
611 	struct stge_tfd		*stge_tx_ring;
612 	bus_addr_t		stge_tx_ring_paddr;
613 	struct stge_rfd		*stge_rx_ring;
614 	bus_addr_t		stge_rx_ring_paddr;
615 };
616 
617 #define STGE_TX_RING_ADDR(sc, i)	\
618     ((sc)->sc_rdata.stge_tx_ring_paddr + sizeof(struct stge_tfd) * (i))
619 #define STGE_RX_RING_ADDR(sc, i)	\
620     ((sc)->sc_rdata.stge_rx_ring_paddr + sizeof(struct stge_rfd) * (i))
621 
622 #define STGE_TX_RING_SZ		\
623     (sizeof(struct stge_tfd) * STGE_TX_RING_CNT)
624 #define STGE_RX_RING_SZ		\
625     (sizeof(struct stge_rfd) * STGE_RX_RING_CNT)
626 
627 /*
628  * Software state per device.
629  */
630 struct stge_softc {
631 	if_t			sc_ifp;	/* interface info */
632 	device_t		sc_dev;
633 	device_t		sc_miibus;
634 	struct resource		*sc_res[2];
635 	struct resource_spec	*sc_spec;
636 	void			*sc_ih;		/* interrupt cookie */
637 	int			sc_rev;		/* silicon revision */
638 
639 	struct callout		sc_tick_ch;	/* tick callout */
640 
641 	struct stge_chain_data	sc_cdata;
642 	struct stge_ring_data	sc_rdata;
643 	int			sc_if_flags;
644 	int			sc_if_framesize;
645 	int			sc_txthresh;	/* Tx threshold */
646 	uint32_t		sc_usefiber:1;	/* if we're fiber */
647 	uint32_t		sc_stge1023:1;	/* are we a 1023 */
648 	uint32_t		sc_DMACtrl;	/* prototype DMACtrl reg. */
649 	uint32_t		sc_MACCtrl;	/* prototype MacCtrl reg. */
650 	uint16_t		sc_IntEnable;	/* prototype IntEnable reg. */
651 	uint16_t		sc_led;		/* LED conf. from EEPROM */
652 	uint8_t			sc_PhyCtrl;	/* prototype PhyCtrl reg. */
653 	int			sc_suspended;
654 	int			sc_detach;
655 
656 	int			sc_rxint_nframe;
657 	int			sc_rxint_dmawait;
658 	int			sc_nerr;
659 	int			sc_watchdog_timer;
660 	int			sc_link;
661 
662 	struct task		sc_link_task;
663 	struct mtx		sc_mii_mtx;	/* MII mutex */
664 	struct mtx		sc_mtx;
665 };
666 
667 #define STGE_LOCK(_sc)		mtx_lock(&(_sc)->sc_mtx)
668 #define STGE_UNLOCK(_sc)	mtx_unlock(&(_sc)->sc_mtx)
669 #define STGE_LOCK_ASSERT(_sc)	mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
670 #define STGE_MII_LOCK(_sc)	mtx_lock(&(_sc)->sc_mii_mtx)
671 #define STGE_MII_UNLOCK(_sc)	mtx_unlock(&(_sc)->sc_mii_mtx)
672 
673 #define	STGE_MAXERR	5
674 
675 #define	STGE_RXCHAIN_RESET(_sc)						\
676 do {									\
677 	(_sc)->sc_cdata.stge_rxhead = NULL;				\
678 	(_sc)->sc_cdata.stge_rxtail = NULL;				\
679 	(_sc)->sc_cdata.stge_rxlen = 0;					\
680 } while (/*CONSTCOND*/0)
681 
682 #define STGE_TIMEOUT 1000
683 
684 #define	STGE_RESET_NONE	0x00
685 #define	STGE_RESET_TX	0x01
686 #define	STGE_RESET_RX	0x02
687 #define	STGE_RESET_FULL	0x04
688