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