if_tireg.h revision 1.26
1/* $NetBSD: if_tireg.h,v 1.26 2020/03/05 15:36:39 msaitoh Exp $ */
2
3/*
4 * Copyright (c) 1997, 1998, 1999
5 *	Bill Paul <wpaul@ctr.columbia.edu>.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 *    must display the following acknowledgement:
17 *	This product includes software developed by Bill Paul.
18 * 4. Neither the name of the author nor the names of any co-contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
32 * THE POSSIBILITY OF SUCH DAMAGE.
33 *
34 *	FreeBSD Id: if_tireg.h,v 1.9 1999/07/27 03:54:48 wpaul Exp
35 */
36
37/*
38 * Tigon register offsets. These are memory mapped registers
39 * which can be accessed with the CSR_READ_4()/CSR_WRITE_4() macros.
40 * Each register must be accessed using 32 bit operations.
41 *
42 * All registers are accessed through a 16K shared memory block.
43 * The first group of registers are actually copies of the PCI
44 * configuration space registers.
45 */
46
47/*
48 * Tigon configuration and control registers.
49 */
50#define TI_MISC_HOST_CTL		0x040
51#define TI_MISC_LOCAL_CTL		0x044
52#define TI_SEM_AB			0x048 /* Tigon 2 only */
53#define TI_MISC_CONF			0x050 /* Tigon 2 only */
54#define TI_TIMER_BITS			0x054
55#define TI_TIMERREF			0x058
56#define TI_PCI_STATE			0x05C
57#define TI_MAIN_EVENT_A			0x060
58#define TI_MAILBOX_EVENT_A		0x064
59#define TI_WINBASE			0x068
60#define TI_WINDATA			0x06C
61#define TI_MAIN_EVENT_B			0x070 /* Tigon 2 only */
62#define TI_MAILBOX_EVENT_B		0x074 /* Tigon 2 only */
63#define TI_TIMERREF_B			0x078 /* Tigon 2 only */
64#define TI_SERIAL			0x07C
65
66/*
67 * Misc host control bits.
68 */
69#define TI_MHC_INTSTATE			0x00000001
70#define TI_MHC_CLEARINT			0x00000002
71#define TI_MHC_RESET			0x00000008
72#define TI_MHC_BYTE_SWAP_ENB		0x00000010
73#define TI_MHC_WORD_SWAP_ENB		0x00000020
74#define TI_MHC_MASK_INTS		0x00000040
75#define TI_MHC_CHIP_REV_MASK		0xF0000000
76
77#define TI_MHC_BIGENDIAN_INIT	\
78	(TI_MHC_BYTE_SWAP_ENB|TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
79
80#define TI_MHC_LITTLEENDIAN_INIT	\
81	(TI_MHC_WORD_SWAP_ENB|TI_MHC_CLEARINT)
82
83/*
84 * Tigon chip rev values. Rev 4 is the Tigon 1. Rev 6 is the Tigon 2.
85 * Rev 5 is also the Tigon 2, but is a broken version which was never
86 * used in any actual hardware, so we ignore it.
87 */
88#define TI_REV_TIGON_I			0x40000000
89#define TI_REV_TIGON_II			0x60000000
90
91/*
92 * Firmware revision that we want.
93 */
94#define TI_FIRMWARE_MAJOR		0xc
95#define TI_FIRMWARE_MINOR		0x4
96#define TI_FIRMWARE_FIX			0xd
97
98/*
99 * Miscelaneous Local Control register.
100 */
101#define TI_MLC_EE_WRITE_ENB		0x00000010
102#define TI_MLC_SRAM_BANK_256K		0x00000200
103#define TI_MLC_SRAM_BANK_SIZE		0x00000300 /* Tigon 2 only */
104#define TI_MLC_LOCALADDR_21		0x00004000
105#define TI_MLC_LOCALADDR_22		0x00008000
106#define TI_MLC_SBUS_WRITEERR		0x00080000
107#define TI_MLC_EE_CLK			0x00100000
108#define TI_MLC_EE_TXEN			0x00200000
109#define TI_MLC_EE_DOUT			0x00400000
110#define TI_MLC_EE_DIN			0x00800000
111
112/*
113 * Offset of MAC address inside EEPROM.
114 */
115#define TI_EE_MAC_OFFSET		0x8c
116
117#define TI_DMA_ASSIST			0x11C
118#define TI_CPU_STATE			0x140
119#define TI_CPU_PROGRAM_COUNTER		0x144
120#define TI_SRAM_ADDR			0x154
121#define TI_SRAM_DATA			0x158
122#define TI_GEN_0			0x180
123#define TI_GEN_X			0x1FC
124#define TI_MAC_TX_STATE			0x200
125#define TI_MAC_RX_STATE			0x220
126#define TI_CPU_CTL_B			0x240 /* Tigon 2 only */
127#define TI_CPU_PROGRAM_COUNTER_B	0x244 /* Tigon 2 only */
128#define TI_SRAM_ADDR_B			0x254 /* Tigon 2 only */
129#define TI_SRAM_DATA_B			0x258 /* Tigon 2 only */
130#define TI_GEN_B_0			0x280 /* Tigon 2 only */
131#define TI_GEN_B_X			0x2FC /* Tigon 2 only */
132
133/*
134 * Misc config register.
135 */
136#define TI_MCR_SRAM_SYNCHRONOUS		0x00100000 /* Tigon 2 only */
137
138/*
139 * PCI state register.
140 */
141#define TI_PCISTATE_FORCE_RESET		0x00000001
142#define TI_PCISTATE_PROVIDE_LEN		0x00000002
143#define TI_PCISTATE_READ_MAXDMA		0x0000001C
144#define TI_PCISTATE_WRITE_MAXDMA	0x000000E0
145#define TI_PCISTATE_MINDMA		0x0000FF00
146#define TI_PCISTATE_FIFO_RETRY_ENB	0x00010000
147#define TI_PCISTATE_USE_MEM_RD_MULT	0x00020000
148#define TI_PCISTATE_NO_SWAP_READ_DMA	0x00040000
149#define TI_PCISTATE_NO_SWAP_WRITE_DMA	0x00080000
150#define TI_PCISTATE_66MHZ_BUS		0x00080000 /* Tigon 2 only */
151#define TI_PCISTATE_32BIT_BUS		0x00100000 /* Tigon 2 only */
152#define TI_PCISTATE_ENB_BYTE_ENABLES	0x00800000 /* Tigon 2 only */
153#define TI_PCISTATE_READ_CMD		0x0F000000
154#define TI_PCISTATE_WRITE_CMD		0xF0000000
155
156#define TI_PCI_READMAX_4		0x04
157#define TI_PCI_READMAX_16		0x08
158#define TI_PCI_READMAX_32		0x0C
159#define TI_PCI_READMAX_64		0x10
160#define TI_PCI_READMAX_128		0x14
161#define TI_PCI_READMAX_256		0x18
162#define TI_PCI_READMAX_1024		0x1C
163
164#define TI_PCI_WRITEMAX_4		0x20
165#define TI_PCI_WRITEMAX_16		0x40
166#define TI_PCI_WRITEMAX_32		0x60
167#define TI_PCI_WRITEMAX_64		0x80
168#define TI_PCI_WRITEMAX_128		0xA0
169#define TI_PCI_WRITEMAX_256		0xC0
170#define TI_PCI_WRITEMAX_1024		0xE0
171
172#define TI_PCI_READ_CMD			0x06000000
173#define TI_PCI_WRITE_CMD		0x70000000
174
175/*
176 * DMA state register.
177 */
178#define TI_DMASTATE_ENABLE		0x00000001
179#define TI_DMASTATE_PAUSE		0x00000002
180
181/*
182 * CPU state register.
183 */
184#define TI_CPUSTATE_RESET		0x00000001
185#define TI_CPUSTATE_STEP		0x00000002
186#define TI_CPUSTATE_ROMFAIL		0x00000010
187#define TI_CPUSTATE_HALT		0x00010000
188/*
189 * MAC TX state register
190 */
191#define TI_TXSTATE_RESET		0x00000001
192#define TI_TXSTATE_ENB			0x00000002
193#define TI_TXSTATE_STOP			0x00000004
194
195/*
196 * MAC RX state register
197 */
198#define TI_RXSTATE_RESET		0x00000001
199#define TI_RXSTATE_ENB			0x00000002
200#define TI_RXSTATE_STOP			0x00000004
201
202/*
203 * Tigon 2 mailbox registers. The mailbox area consists of 256 bytes
204 * split into 64 bit registers. Only the lower 32 bits of each mailbox
205 * are used.
206 */
207#define TI_MB_HOSTINTR_HI		0x500
208#define TI_MB_HOSTINTR_LO		0x504
209#define TI_MB_HOSTINTR			TI_MB_HOSTINTR_LO
210#define TI_MB_CMDPROD_IDX_HI		0x508
211#define TI_MB_CMDPROD_IDX_LO		0x50C
212#define TI_MB_CMDPROD_IDX		TI_MB_CMDPROD_IDX_LO
213#define TI_MB_SENDPROD_IDX_HI		0x510
214#define TI_MB_SENDPROD_IDX_LO		0x514
215#define TI_MB_SENDPROD_IDX		TI_MB_SENDPROD_IDX_LO
216#define TI_MB_STDRXPROD_IDX_HI		0x518 /* Tigon 2 only */
217#define TI_MB_STDRXPROD_IDX_LO		0x51C /* Tigon 2 only */
218#define TI_MB_STDRXPROD_IDX		TI_MB_STDRXPROD_IDX_LO
219#define TI_MB_JUMBORXPROD_IDX_HI	0x520 /* Tigon 2 only */
220#define TI_MB_JUMBORXPROD_IDX_LO	0x524 /* Tigon 2 only */
221#define TI_MB_JUMBORXPROD_IDX		TI_MB_JUMBORXPROD_IDX_LO
222#define TI_MB_MINIRXPROD_IDX_HI		0x528 /* Tigon 2 only */
223#define TI_MB_MINIRXPROD_IDX_LO		0x52C /* Tigon 2 only */
224#define TI_MB_MINIRXPROD_IDX		TI_MB_MINIRXPROD_IDX_LO
225#define TI_MB_RSVD			0x530
226
227/*
228 * Tigon 2 general communication registers. These are 64 and 32 bit
229 * registers which are only valid after the firmware has been
230 * loaded and started. They actually exist in NIC memory but are
231 * mapped into the host memory via the shared memory region.
232 *
233 * The NIC internally maps these registers starting at address 0,
234 * so to determine the NIC address of any of these registers, we
235 * subtract 0x600 (the address of the first register).
236 */
237
238#define TI_GCR_BASE			0x600
239#define TI_GCR_MACADDR			0x600
240#define TI_GCR_PAR0			0x600
241#define TI_GCR_PAR1			0x604
242#define TI_GCR_GENINFO_HI		0x608
243#define TI_GCR_GENINFO_LO		0x60C
244#define TI_GCR_MCASTADDR		0x610 /* obsolete */
245#define TI_GCR_MAR0			0x610 /* obsolete */
246#define TI_GCR_MAR1			0x614 /* obsolete */
247#define TI_GCR_OPMODE			0x618
248#define TI_GCR_DMA_READCFG		0x61C
249#define TI_GCR_DMA_WRITECFG		0x620
250#define TI_GCR_TX_BUFFER_RATIO		0x624
251#define TI_GCR_EVENTCONS_IDX		0x628
252#define TI_GCR_CMDCONS_IDX		0x62C
253#define TI_GCR_TUNEPARMS		0x630
254#define TI_GCR_RX_COAL_TICKS		0x630
255#define TI_GCR_TX_COAL_TICKS		0x634
256#define TI_GCR_STAT_TICKS		0x638
257#define TI_GCR_TX_MAX_COAL_BD		0x63C
258#define TI_GCR_RX_MAX_COAL_BD		0x640
259#define TI_GCR_NIC_TRACING		0x644
260#define TI_GCR_GLINK			0x648
261#define TI_GCR_LINK			0x64C
262#define TI_GCR_NICTRACE_PTR		0x650
263#define TI_GCR_NICTRACE_START		0x654
264#define TI_GCR_NICTRACE_LEN		0x658
265#define TI_GCR_IFINDEX			0x65C
266#define TI_GCR_IFMTU			0x660
267#define TI_GCR_MASK_INTRS		0x664
268#define TI_GCR_GLINK_STAT		0x668
269#define TI_GCR_LINK_STAT		0x66C
270#define TI_GCR_RXRETURNCONS_IDX		0x680
271#define TI_GCR_CMDRING			0x700
272
273#define TI_GCR_NIC_ADDR(x)		(x - TI_GCR_BASE)
274
275/*
276 * Local memory window. The local memory window is a 2K shared
277 * memory region which can be used to access the NIC's internal
278 * SRAM. The window can be mapped to a given 2K region using
279 * the TI_WINDOW_BASE register.
280 */
281#define TI_WINDOW			0x800
282#define TI_WINLEN			0x800
283
284#define TI_TICKS_PER_SEC		1000000
285
286/*
287 * Operation mode register.
288 */
289#define TI_OPMODE_BYTESWAP_BD		0x00000002
290#define TI_OPMODE_WORDSWAP_BD		0x00000004
291#define TI_OPMODE_WARN_ENB		0x00000008 /* not yet implimented */
292#define TI_OPMODE_BYTESWAP_DATA		0x00000010
293#define TI_OPMODE_1_DMA_ACTIVE		0x00000040
294#define TI_OPMODE_SBUS			0x00000100
295#define TI_OPMODE_DONT_FRAG_JUMBO	0x00000200
296#define TI_OPMODE_INCLUDE_CRC		0x00000400
297#define TI_OPMODE_RX_BADFRAMES		0x00000800
298#define TI_OPMODE_NO_EVENT_INTRS	0x00001000
299#define TI_OPMODE_NO_TX_INTRS		0x00002000
300#define TI_OPMODE_NO_RX_INTRS		0x00004000
301#define TI_OPMODE_FATAL_ENB		0x40000000 /* not yet implimented */
302
303/*
304 * DMA configuration thresholds.
305 */
306#define TI_DMA_STATE_THRESH_16W		0x00000100
307#define TI_DMA_STATE_THRESH_8W		0x00000080
308#define TI_DMA_STATE_THRESH_4W		0x00000040
309#define TI_DMA_STATE_THRESH_2W		0x00000020
310#define TI_DMA_STATE_THRESH_1W		0x00000010
311
312#define TI_DMA_STATE_FORCE_32_BIT	0x00000008
313
314/*
315 * Gigabit link status bits.
316 */
317#define TI_GLNK_SENSE_NO_BEG		0x00002000
318#define TI_GLNK_LOOPBACK		0x00004000
319#define TI_GLNK_PREF			0x00008000
320#define TI_GLNK_1000MB			0x00040000
321#define TI_GLNK_FULL_DUPLEX		0x00080000
322#define TI_GLNK_TX_FLOWCTL_Y		0x00200000 /* Tigon 2 only */
323#define TI_GLNK_RX_FLOWCTL_Y		0x00800000
324#define TI_GLNK_AUTONEGENB		0x20000000
325#define TI_GLNK_ENB			0x40000000
326
327/*
328 * Link status bits.
329 */
330#define TI_LNK_LOOPBACK			0x00004000
331#define TI_LNK_PREF			0x00008000
332#define TI_LNK_10MB			0x00010000
333#define TI_LNK_100MB			0x00020000
334#define TI_LNK_1000MB			0x00040000
335#define TI_LNK_FULL_DUPLEX		0x00080000
336#define TI_LNK_HALF_DUPLEX		0x00100000
337#define TI_LNK_TX_FLOWCTL_Y		0x00200000 /* Tigon 2 only */
338#define TI_LNK_RX_FLOWCTL_Y		0x00800000
339#define TI_LNK_AUTONEGENB		0x20000000
340#define TI_LNK_ENB			0x40000000
341
342/*
343 * Ring size constants.
344 */
345#define TI_EVENT_RING_CNT	256
346#define TI_CMD_RING_CNT		64
347#define TI_STD_RX_RING_CNT	512
348#define TI_JUMBO_RX_RING_CNT	256
349#define TI_MINI_RX_RING_CNT	1024
350#define TI_RETURN_RING_CNT	2048
351
352/*
353 * Possible TX ring sizes.
354 */
355#define TI_TX_RING_CNT_128	128
356#define TI_TX_RING_BASE_128	0x3800
357
358#define TI_TX_RING_CNT_256	256
359#define TI_TX_RING_BASE_256	0x3000
360
361#define TI_TX_RING_CNT_512	512
362#define TI_TX_RING_BASE_512	0x2000
363
364#define TI_TX_RING_CNT		TI_TX_RING_CNT_512
365#define TI_TX_RING_BASE		TI_TX_RING_BASE_512
366
367/*
368 * The Tigon can have up to 8MB of external SRAM, however the Tigon 1
369 * is limited to 2MB total, and in general I think most adapters have
370 * around 1MB. We use this value for zeroing the NIC's SRAM, so to
371 * be safe we use the largest possible value (zeroing memory that
372 * isn't there doesn't hurt anything).
373 */
374#define TI_MEM_MAX		0x7FFFFF
375
376typedef struct {
377	u_int32_t		ti_addr_hi;
378	u_int32_t		ti_addr_lo;
379} ti_hostaddr;
380
381/*
382 * Ring control block structure. The rules for the max_len field
383 * are as follows:
384 *
385 * For the send ring, max_len indicates the number of entries in the
386 * ring (128, 256 or 512).
387 *
388 * For the standard receive ring, max_len indicates the threshold
389 * used to decide when a frame should be put in the jumbo receive ring
390 * instead of the standard one.
391 *
392 * For the mini ring, max_len indicates the size of the buffers in the
393 * ring. This is the value used to decide when a frame is small enough
394 * to be placed in the mini ring.
395 *
396 * For the return receive ring, max_len indicates the number of entries
397 * in the ring. It can be one of 2048, 1024 or 0 (which is the same as
398 * 2048 for backwards compatibility). The value 1024 can only be used
399 * if the mini ring is disabled.
400 */
401struct ti_rcb {
402	ti_hostaddr		ti_hostaddr;
403#if BYTE_ORDER == BIG_ENDIAN
404	u_int16_t		ti_max_len;
405	u_int16_t		ti_flags;
406#else
407	u_int16_t		ti_flags;
408	u_int16_t		ti_max_len;
409#endif
410	u_int32_t		ti_unused;
411};
412
413#define TI_RCB_FLAG_TCP_UDP_CKSUM	0x00000001
414#define TI_RCB_FLAG_IP_CKSUM		0x00000002
415#define TI_RCB_FLAG_NO_PHDR_CKSUM	0x00000008
416#define TI_RCB_FLAG_VLAN_ASSIST		0x00000010
417#define TI_RCB_FLAG_COAL_UPD_ONLY	0x00000020
418#define TI_RCB_FLAG_HOST_RING		0x00000040
419#define TI_RCB_FLAG_IEEE_SNAP_CKSUM	0x00000080
420#define TI_RCB_FLAG_USE_EXT_RX_BD	0x00000100
421#define TI_RCB_FLAG_RING_DISABLED	0x00000200
422
423struct ti_producer {
424	u_int32_t		ti_idx;
425	u_int32_t		ti_unused;
426};
427
428/*
429 * Tigon statistics counters.
430 */
431struct ti_stats {
432	/*
433	 * MAC stats, taken from RFC 1643, ethernet-like MIB
434	 */
435	volatile u_int32_t dot3StatsAlignmentErrors;		/* 0 */
436	volatile u_int32_t dot3StatsFCSErrors;			/* 1 */
437	volatile u_int32_t dot3StatsSingleCollisionFrames;	/* 2 */
438	volatile u_int32_t dot3StatsMultipleCollisionFrames;	/* 3 */
439	volatile u_int32_t dot3StatsSQETestErrors;		/* 4 */
440	volatile u_int32_t dot3StatsDeferredTransmissions;	/* 5 */
441	volatile u_int32_t dot3StatsLateCollisions;		/* 6 */
442	volatile u_int32_t dot3StatsExcessiveCollisions;	/* 7 */
443	volatile u_int32_t dot3StatsInternalMacTransmitErrors;	/* 8 */
444	volatile u_int32_t dot3StatsCarrierSenseErrors;		/* 9 */
445	volatile u_int32_t dot3StatsFrameTooLongs;		/* 10 */
446	volatile u_int32_t dot3StatsInternalMacReceiveErrors;	/* 11 */
447	/*
448	 * interface stats, taken from RFC 1213, MIB-II, interfaces group
449	 */
450	volatile u_int32_t ifIndex;				/* 12 */
451	volatile u_int32_t ifType;				/* 13 */
452	volatile u_int32_t ifMtu;				/* 14 */
453	volatile u_int32_t ifSpeed;				/* 15 */
454	volatile u_int32_t ifAdminStatus;			/* 16 */
455#define IF_ADMIN_STATUS_UP      1
456#define IF_ADMIN_STATUS_DOWN    2
457#define IF_ADMIN_STATUS_TESTING 3
458	volatile u_int32_t ifOperStatus;			/* 17 */
459#define IF_OPER_STATUS_UP       1
460#define IF_OPER_STATUS_DOWN     2
461#define IF_OPER_STATUS_TESTING  3
462#define IF_OPER_STATUS_UNKNOWN  4
463#define IF_OPER_STATUS_DORMANT  5
464	volatile u_int32_t ifLastChange;			/* 18 */
465	volatile u_int32_t ifInDiscards;			/* 19 */
466	volatile u_int32_t ifInErrors;				/* 20 */
467	volatile u_int32_t ifInUnknownProtos;			/* 21 */
468	volatile u_int32_t ifOutDiscards;			/* 22 */
469	volatile u_int32_t ifOutErrors;				/* 23 */
470	volatile u_int32_t ifOutQLen;     /* deprecated */	/* 24 */
471	volatile u_int8_t  ifPhysAddress[8]; /* 8 bytes */	/* 25 - 26 */
472	volatile u_int8_t  ifDescr[32];				/* 27 - 34 */
473	u_int32_t alignIt;      /* align to 64 bit for u_int64_ts following */
474	/*
475	 * more interface stats, taken from RFC 1573, MIB-IIupdate,
476	 * interfaces group
477	 */
478	volatile u_int64_t ifHCInOctets;			/* 36 - 37 */
479	volatile u_int64_t ifHCInUcastPkts;			/* 38 - 39 */
480	volatile u_int64_t ifHCInMulticastPkts;			/* 40 - 41 */
481	volatile u_int64_t ifHCInBroadcastPkts;			/* 42 - 43 */
482	volatile u_int64_t ifHCOutOctets;			/* 44 - 45 */
483	volatile u_int64_t ifHCOutUcastPkts;			/* 46 - 47 */
484	volatile u_int64_t ifHCOutMulticastPkts;		/* 48 - 49 */
485	volatile u_int64_t ifHCOutBroadcastPkts;		/* 50 - 51 */
486	volatile u_int32_t ifLinkUpDownTrapEnable;		/* 52 */
487	volatile u_int32_t ifHighSpeed;				/* 53 */
488	volatile u_int32_t ifPromiscuousMode; 			/* 54 */
489	volatile u_int32_t ifConnectorPresent; /* follow link state 55 */
490	/*
491	 * Host Commands
492	 */
493	volatile u_int32_t nicCmdsHostState;			/* 56 */
494	volatile u_int32_t nicCmdsFDRFiltering;			/* 57 */
495	volatile u_int32_t nicCmdsSetRecvProdIndex;		/* 58 */
496	volatile u_int32_t nicCmdsUpdateGencommStats;		/* 59 */
497	volatile u_int32_t nicCmdsResetJumboRing;		/* 60 */
498	volatile u_int32_t nicCmdsAddMCastAddr;			/* 61 */
499	volatile u_int32_t nicCmdsDelMCastAddr;			/* 62 */
500	volatile u_int32_t nicCmdsSetPromiscMode;		/* 63 */
501	volatile u_int32_t nicCmdsLinkNegotiate;		/* 64 */
502	volatile u_int32_t nicCmdsSetMACAddr;			/* 65 */
503	volatile u_int32_t nicCmdsClearProfile;			/* 66 */
504	volatile u_int32_t nicCmdsSetMulticastMode;		/* 67 */
505	volatile u_int32_t nicCmdsClearStats;			/* 68 */
506	volatile u_int32_t nicCmdsSetRecvJumboProdIndex;	/* 69 */
507	volatile u_int32_t nicCmdsSetRecvMiniProdIndex;		/* 70 */
508	volatile u_int32_t nicCmdsRefreshStats;			/* 71 */
509	volatile u_int32_t nicCmdsUnknown;			/* 72 */
510	/*
511	 * NIC Events
512	 */
513	volatile u_int32_t nicEventsNICFirmwareOperational;	/* 73 */
514	volatile u_int32_t nicEventsStatsUpdated;		/* 74 */
515	volatile u_int32_t nicEventsLinkStateChanged;		/* 75 */
516	volatile u_int32_t nicEventsError;			/* 76 */
517	volatile u_int32_t nicEventsMCastListUpdated;		/* 77 */
518	volatile u_int32_t nicEventsResetJumboRing;		/* 78 */
519	/*
520	 * Ring manipulation
521	 */
522	volatile u_int32_t nicRingSetSendProdIndex;		/* 79 */
523	volatile u_int32_t nicRingSetSendConsIndex;		/* 80 */
524	volatile u_int32_t nicRingSetRecvReturnProdIndex;	/* 81 */
525	/*
526	 * Interrupts
527	 */
528	volatile u_int32_t nicInterrupts;			/* 82 */
529	volatile u_int32_t nicAvoidedInterrupts;		/* 83 */
530	/*
531	 * BD Coalescing Thresholds
532	 */
533	volatile u_int32_t nicEventThresholdHit;		/* 84 */
534	volatile u_int32_t nicSendThresholdHit;			/* 85 */
535	volatile u_int32_t nicRecvThresholdHit;			/* 86 */
536	/*
537	 * DMA Attentions
538	 */
539	volatile u_int32_t nicDmaRdOverrun;			/* 87 */
540	volatile u_int32_t nicDmaRdUnderrun;			/* 88 */
541	volatile u_int32_t nicDmaWrOverrun;			/* 89 */
542	volatile u_int32_t nicDmaWrUnderrun;			/* 90 */
543	volatile u_int32_t nicDmaWrMasterAborts;		/* 91 */
544	volatile u_int32_t nicDmaRdMasterAborts;		/* 92 */
545	/*
546	 * NIC Resources
547	 */
548	volatile u_int32_t nicDmaWriteRingFull;			/* 93 */
549	volatile u_int32_t nicDmaReadRingFull;			/* 94 */
550	volatile u_int32_t nicEventRingFull;			/* 95 */
551	volatile u_int32_t nicEventProducerRingFull;		/* 96 */
552	volatile u_int32_t nicTxMacDescrRingFull;		/* 97 */
553	volatile u_int32_t nicOutOfTxBufSpaceFrameRetry;	/* 98 */
554	volatile u_int32_t nicNoMoreWrDMADescriptors;		/* 99 */
555	volatile u_int32_t nicNoMoreRxBDs;			/* 100 */
556	volatile u_int32_t nicNoSpaceInReturnRing;		/* 101 */
557	volatile u_int32_t nicSendBDs;            /* current count 102 */
558	volatile u_int32_t nicRecvBDs;            /* current count 103 */
559	volatile u_int32_t nicJumboRecvBDs;       /* current count 104 */
560	volatile u_int32_t nicMiniRecvBDs;        /* current count 105 */
561	volatile u_int32_t nicTotalRecvBDs;       /* current count 106 */
562	volatile u_int32_t nicTotalSendBDs;       /* current count 107 */
563	volatile u_int32_t nicJumboSpillOver;			/* 108 */
564	volatile u_int32_t nicSbusHangCleared;			/* 109 */
565	volatile u_int32_t nicEnqEventDelayed;			/* 110 */
566	/*
567	 * Stats from MAC rx completion
568	 */
569	volatile u_int32_t nicMacRxLateColls;			/* 111 */
570	volatile u_int32_t nicMacRxLinkLostDuringPkt;		/* 112 */
571	volatile u_int32_t nicMacRxPhyDecodeErr;		/* 113 */
572	volatile u_int32_t nicMacRxMacAbort;			/* 114 */
573	volatile u_int32_t nicMacRxTruncNoResources;		/* 115 */
574	/*
575	 * Stats from the mac_stats area
576	 */
577	volatile u_int32_t nicMacRxDropUla;			/* 116 */
578	volatile u_int32_t nicMacRxDropMcast;			/* 117 */
579	volatile u_int32_t nicMacRxFlowControl;			/* 118 */
580	volatile u_int32_t nicMacRxDropSpace;			/* 119 */
581	volatile u_int32_t nicMacRxColls;			/* 120 */
582	/*
583 	 * MAC RX Attentions
584	 */
585	volatile u_int32_t nicMacRxTotalAttns;			/* 121 */
586	volatile u_int32_t nicMacRxLinkAttns;			/* 122 */
587	volatile u_int32_t nicMacRxSyncAttns;			/* 123 */
588	volatile u_int32_t nicMacRxConfigAttns;			/* 124 */
589	volatile u_int32_t nicMacReset;				/* 125 */
590	volatile u_int32_t nicMacRxBufDescrAttns;		/* 126 */
591	volatile u_int32_t nicMacRxBufAttns;			/* 127 */
592	volatile u_int32_t nicMacRxZeroFrameCleanup;		/* 128 */
593	volatile u_int32_t nicMacRxOneFrameCleanup;		/* 129 */
594	volatile u_int32_t nicMacRxMultipleFrameCleanup;	/* 130 */
595	volatile u_int32_t nicMacRxTimerCleanup;		/* 131 */
596	volatile u_int32_t nicMacRxDmaCleanup;			/* 132 */
597	/*
598	 * Stats from the mac_stats area
599	 */
600	volatile u_int32_t nicMacTxCollisionHistogram[15];	/* 133 */
601	/*
602	 * MAC TX Attentions
603	 */
604	volatile u_int32_t nicMacTxTotalAttns;			/* 134 */
605	/*
606	 * NIC Profile
607	 */
608	volatile u_int32_t nicProfile[32];			/* 135 */
609	/*
610	 * Pat to 1024 bytes.
611	 */
612	u_int32_t		pad[75];
613};
614/*
615 * Tigon general information block. This resides in host memory
616 * and contains the status counters, ring control blocks and
617 * producer pointers.
618 */
619
620struct ti_gib {
621	struct ti_stats		ti_stats;
622	struct ti_rcb		ti_ev_rcb;
623	struct ti_rcb		ti_cmd_rcb;
624	struct ti_rcb		ti_tx_rcb;
625	struct ti_rcb		ti_std_rx_rcb;
626	struct ti_rcb		ti_jumbo_rx_rcb;
627	struct ti_rcb		ti_mini_rx_rcb;
628	struct ti_rcb		ti_return_rcb;
629	ti_hostaddr		ti_ev_prodidx_ptr;
630	ti_hostaddr		ti_return_prodidx_ptr;
631	ti_hostaddr		ti_tx_considx_ptr;
632	ti_hostaddr		ti_refresh_stats_ptr;
633};
634
635/*
636 * Buffer descriptor structures. There are basically three types
637 * of structures: normal receive descriptors, extended receive
638 * descriptors and transmit descriptors. The extended receive
639 * descriptors are optionally used only for the jumbo receive ring.
640 */
641
642struct ti_rx_desc {
643	ti_hostaddr		ti_addr;
644#if BYTE_ORDER == BIG_ENDIAN
645	u_int16_t		ti_idx;
646	u_int16_t		ti_len;
647#else
648	u_int16_t		ti_len;
649	u_int16_t		ti_idx;
650#endif
651#if BYTE_ORDER == BIG_ENDIAN
652	u_int16_t		ti_type;
653	u_int16_t		ti_flags;
654#else
655	u_int16_t		ti_flags;
656	u_int16_t		ti_type;
657#endif
658#if BYTE_ORDER == BIG_ENDIAN
659	u_int16_t		ti_ip_cksum;
660	u_int16_t		ti_tcp_udp_cksum;
661#else
662	u_int16_t		ti_tcp_udp_cksum;
663	u_int16_t		ti_ip_cksum;
664#endif
665#if BYTE_ORDER == BIG_ENDIAN
666	u_int16_t		ti_error_flags;
667	u_int16_t		ti_vlan_tag;
668#else
669	u_int16_t		ti_vlan_tag;
670	u_int16_t		ti_error_flags;
671#endif
672	u_int32_t		ti_rsvd;
673	u_int32_t		ti_opaque;
674};
675
676struct ti_rx_desc_ext {
677	ti_hostaddr		ti_addr1;
678	ti_hostaddr		ti_addr2;
679	ti_hostaddr		ti_addr3;
680#if BYTE_ORDER == BIG_ENDIAN
681	u_int16_t		ti_len1;
682	u_int16_t		ti_len2;
683#else
684	u_int16_t		ti_len2;
685	u_int16_t		ti_len1;
686#endif
687#if BYTE_ORDER == BIG_ENDIAN
688	u_int16_t		ti_len3;
689	u_int16_t		ti_rsvd0;
690#else
691	u_int16_t		ti_rsvd0;
692	u_int16_t		ti_len3;
693#endif
694	ti_hostaddr		ti_addr0;
695#if BYTE_ORDER == BIG_ENDIAN
696	u_int16_t		ti_idx;
697	u_int16_t		ti_len0;
698#else
699	u_int16_t		ti_len0;
700	u_int16_t		ti_idx;
701#endif
702#if BYTE_ORDER == BIG_ENDIAN
703	u_int16_t		ti_type;
704	u_int16_t		ti_flags;
705#else
706	u_int16_t		ti_flags;
707	u_int16_t		ti_type;
708#endif
709#if BYTE_ORDER == BIG_ENDIAN
710	u_int16_t		ti_ip_cksum;
711	u_int16_t		ti_tcp_udp_cksum;
712#else
713	u_int16_t		ti_tcp_udp_cksum;
714	u_int16_t		ti_ip_cksum;
715#endif
716#if BYTE_ORDER == BIG_ENDIAN
717	u_int16_t		ti_error_flags;
718	u_int16_t		ti_vlan_tag;
719#else
720	u_int16_t		ti_vlan_tag;
721	u_int16_t		ti_error_flags;
722#endif
723	u_int32_t		ti_rsvd1;
724	u_int32_t		ti_opaque;
725};
726
727/*
728 * Transmit descriptors are, mercifully, very small.
729 */
730struct ti_tx_desc {
731	ti_hostaddr		ti_addr;
732#if BYTE_ORDER == BIG_ENDIAN
733	u_int16_t		ti_len;
734	u_int16_t		ti_flags;
735#else
736	u_int16_t		ti_flags;
737	u_int16_t		ti_len;
738#endif
739#if BYTE_ORDER == BIG_ENDIAN
740	u_int16_t		ti_rsvd;
741	u_int16_t		ti_vlan_tag;
742#else
743	u_int16_t		ti_vlan_tag;
744	u_int16_t		ti_rsvd;
745#endif
746};
747
748/*
749 * NOTE!  On the Alpha, we have an alignment constraint.
750 * The first thing in the packet is a 14-byte Ethernet header.
751 * This means that the packet is misaligned.  To compensate,
752 * we actually offset the data 2 bytes into the cluster.  This
753 * alignes the packet after the Ethernet header at a 32-bit
754 * boundary.
755 */
756
757#define TI_PAGE_SIZE		PAGE_SIZE
758
759/*
760 * Buffer descriptor error flags.
761 */
762#define TI_BDERR_CRC			0x0001
763#define TI_BDERR_COLLDETECT		0x0002
764#define TI_BDERR_LINKLOST		0x0004
765#define TI_BDERR_DECODE			0x0008
766#define TI_BDERR_ODD_NIBBLES		0x0010
767#define TI_BDERR_MAC_ABRT		0x0020
768#define TI_BDERR_RUNT			0x0040
769#define TI_BDERR_TRUNC			0x0080
770#define TI_BDERR_GIANT			0x0100
771
772/*
773 * Buffer descriptor flags.
774 */
775#define TI_BDFLAG_TCP_UDP_CKSUM		0x0001
776#define TI_BDFLAG_IP_CKSUM		0x0002
777#define TI_BDFLAG_END			0x0004
778#define TI_BDFLAG_MORE			0x0008
779#define TI_BDFLAG_JUMBO_RING		0x0010
780#define TI_BDFLAG_UCAST_PKT		0x0020
781#define TI_BDFLAG_MCAST_PKT		0x0040
782#define TI_BDFLAG_BCAST_PKT		0x0060
783#define TI_BDFLAG_IP_FRAG		0x0080
784#define TI_BDFLAG_IP_FRAG_END		0x0100
785#define TI_BDFLAG_VLAN_TAG		0x0200
786#define TI_BDFLAG_ERROR			0x0400
787#define TI_BDFLAG_COAL_NOW		0x0800
788#define	TI_BDFLAG_MINI_RING		0x1000
789
790/*
791 * Descriptor type flags. I think these only have meaning for
792 * the Tigon 1. I had to extract them from the sample driver source
793 * since they aren't in the manual.
794 */
795#define TI_BDTYPE_TYPE_NULL			0x0000
796#define TI_BDTYPE_SEND_BD			0x0001
797#define TI_BDTYPE_RECV_BD			0x0002
798#define TI_BDTYPE_RECV_JUMBO_BD			0x0003
799#define TI_BDTYPE_RECV_BD_LAST			0x0004
800#define TI_BDTYPE_SEND_DATA			0x0005
801#define TI_BDTYPE_SEND_DATA_LAST		0x0006
802#define TI_BDTYPE_RECV_DATA			0x0007
803#define TI_BDTYPE_RECV_DATA_LAST		0x000b
804#define TI_BDTYPE_EVENT_RUPT			0x000c
805#define TI_BDTYPE_EVENT_NO_RUPT			0x000d
806#define TI_BDTYPE_ODD_START			0x000e
807#define TI_BDTYPE_UPDATE_STATS			0x000f
808#define TI_BDTYPE_SEND_DUMMY_DMA		0x0010
809#define TI_BDTYPE_EVENT_PROD			0x0011
810#define TI_BDTYPE_TX_CONS			0x0012
811#define TI_BDTYPE_RX_PROD			0x0013
812#define TI_BDTYPE_REFRESH_STATS			0x0014
813#define TI_BDTYPE_SEND_DATA_LAST_VLAN		0x0015
814#define TI_BDTYPE_SEND_DATA_COAL		0x0016
815#define TI_BDTYPE_SEND_DATA_LAST_COAL		0x0017
816#define TI_BDTYPE_SEND_DATA_LAST_VLAN_COAL	0x0018
817#define TI_BDTYPE_TX_CONS_NO_INTR		0x0019
818
819/*
820 * Tigon command structure.
821 */
822struct ti_cmd_desc {
823	u_int32_t		ti_cmdx;
824};
825
826#define TI_CMD_CMD(cmd)		(((((cmd)->ti_cmdx)) >> 24) & 0xff)
827#define TI_CMD_CODE(cmd)	(((((cmd)->ti_cmdx)) >> 12) & 0xfff)
828#define TI_CMD_IDX(cmd)		((((cmd)->ti_cmdx)) & 0xfff)
829
830#define TI_CMD_HOST_STATE		0x01
831#define TI_CMD_CODE_STACK_UP		0x01
832#define TI_CMD_CODE_STACK_DOWN		0x02
833
834/*
835 * This command enables software address filtering. It's a workaround
836 * for a bug in the Tigon 1 and not implemented for the Tigon 2.
837 */
838#define TI_CMD_FDR_FILTERING		0x02
839#define TI_CMD_CODE_FILT_ENB		0x01
840#define TI_CMD_CODE_FILT_DIS		0x02
841
842#define TI_CMD_SET_RX_PROD_IDX		0x03 /* obsolete */
843#define TI_CMD_UPDATE_GENCOM		0x04
844#define TI_CMD_RESET_JUMBO_RING		0x05
845#define TI_CMD_SET_PARTIAL_RX_CNT	0x06
846#define TI_CMD_ADD_MCAST_ADDR		0x08 /* obsolete */
847#define TI_CMD_DEL_MCAST_ADDR		0x09 /* obsolete */
848
849#define TI_CMD_SET_PROMISC_MODE		0x0A
850#define TI_CMD_CODE_PROMISC_ENB		0x01
851#define TI_CMD_CODE_PROMISC_DIS		0x02
852
853#define TI_CMD_LINK_NEGOTIATION		0x0B
854#define TI_CMD_CODE_NEGOTIATE_BOTH	0x00
855#define TI_CMD_CODE_NEGOTIATE_GIGABIT	0x01
856#define TI_CMD_CODE_NEGOTIATE_10_100	0x02
857
858#define TI_CMD_SET_MAC_ADDR		0x0C
859#define TI_CMD_CLR_PROFILE		0x0D
860
861#define TI_CMD_SET_ALLMULTI		0x0E
862#define TI_CMD_CODE_ALLMULTI_ENB	0x01
863#define TI_CMD_CODE_ALLMULTI_DIS	0x02
864
865#define TI_CMD_CLR_STATS		0x0F
866#define TI_CMD_SET_RX_JUMBO_PROD_IDX	0x10 /* obsolete */
867#define TI_CMD_RFRSH_STATS		0x11
868
869#define TI_CMD_EXT_ADD_MCAST		0x12
870#define TI_CMD_EXT_DEL_MCAST		0x13
871
872/*
873 * Utility macros to make issuing commands a little simpler. Assumes
874 * that 'sc' and 'cmd' are in local scope.
875 */
876#define TI_DO_CMD(x, y, z)	do {				\
877	cmd.ti_cmdx = (((x) << 24) | ((y) << 12) | ((z)));	\
878	ti_cmd(sc, &cmd);					\
879} while(0)
880
881#define TI_DO_CMD_EXT(x, y, z, v, w)	do {			\
882	cmd.ti_cmdx = (((x) << 24) | ((y) << 12) | ((z)));	\
883	ti_cmd_ext(sc, &cmd, (v), (w));				\
884} while(0)
885
886/*
887 * Other utility macros.
888 */
889#define TI_INC(x, y)	do { (x) = ((x) + 1) % (y); } while(0)
890
891#define TI_UPDATE_JUMBOPROD(x, y)	do {				\
892	if ((x)->ti_hwrev == TI_HWREV_TIGON)				\
893		TI_DO_CMD(TI_CMD_SET_RX_JUMBO_PROD_IDX, 0, y);	\
894	else								\
895		CSR_WRITE_4(x, TI_MB_JUMBORXPROD_IDX, y);		\
896} while(0)
897
898#define TI_UPDATE_MINIPROD(x, y)					\
899		CSR_WRITE_4(x, TI_MB_MINIRXPROD_IDX, y)
900
901#define TI_UPDATE_STDPROD(x, y)		do {				\
902	if ((x)->ti_hwrev == TI_HWREV_TIGON)				\
903		TI_DO_CMD(TI_CMD_SET_RX_PROD_IDX, 0, y);		\
904	else								\
905		CSR_WRITE_4(x, TI_MB_STDRXPROD_IDX, y);			\
906} while(0)
907
908
909/*
910 * Tigon event structure.
911 */
912struct ti_event_desc {
913	u_int32_t		ti_eventx;
914	u_int32_t		ti_rsvd;
915};
916
917#define TI_EVENT_EVENT(e)	(((((e)->ti_eventx)) >> 24) & 0xff)
918#define TI_EVENT_CODE(e)	(((((e)->ti_eventx)) >> 12) & 0xfff)
919#define TI_EVENT_IDX(e)		(((((e)->ti_eventx))) & 0xfff)
920
921/*
922 * Tigon events.
923 */
924#define TI_EV_FIRMWARE_UP		0x01
925#define TI_EV_STATS_UPDATED		0x04
926
927#define TI_EV_LINKSTAT_CHANGED		0x06
928#define TI_EV_CODE_GIG_LINK_UP		0x01
929#define TI_EV_CODE_LINK_DOWN		0x02
930#define TI_EV_CODE_LINK_UP		0x03
931
932#define TI_EV_ERROR			0x07
933#define TI_EV_CODE_ERR_INVAL_CMD	0x01
934#define TI_EV_CODE_ERR_UNIMP_CMD	0x02
935#define TI_EV_CODE_ERR_BADCFG		0x03
936
937#define TI_EV_MCAST_UPDATED		0x08
938#define TI_EV_CODE_MCAST_ADD		0x01
939#define TI_EV_CODE_MCAST_DEL		0x02
940
941#define TI_EV_RESET_JUMBO_RING		0x09
942/*
943 * Register access macros. The Tigon always uses memory mapped register
944 * accesses and all registers must be accessed with 32 bit operations.
945 * The Tigon can operate in big-endian mode, so we always write to the
946 * registers in native byte order. We assume that all big-endian hosts
947 * with a PCI bus have __BUS_SPACE_HAS_STREAM_METHODS defined.
948 */
949
950#ifdef __BUS_SPACE_HAS_STREAM_METHODS
951#define CSR_WRITE_4(sc, reg, val)	\
952	bus_space_write_stream_4((sc)->ti_btag, (sc)->ti_bhandle, reg, val)
953
954#define CSR_READ_4(sc, reg)		\
955	bus_space_read_stream_4((sc)->ti_btag, (sc)->ti_bhandle, reg)
956#else
957#define CSR_WRITE_4(sc, reg, val)	\
958	bus_space_write_4((sc)->ti_btag, (sc)->ti_bhandle, reg, val)
959
960#define CSR_READ_4(sc, reg)		\
961	bus_space_read_4((sc)->ti_btag, (sc)->ti_bhandle, reg)
962#endif
963
964#define TI_SETBIT(sc, reg, x)	\
965	CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) | (x)))
966#define TI_CLRBIT(sc, reg, x)	\
967	CSR_WRITE_4(sc, reg, (CSR_READ_4(sc, reg) & ~(x)))
968
969/*
970 * Memory management stuff. Note: the SSLOTS, MSLOTS and JSLOTS
971 * values are tuneable. They control the actual amount of buffers
972 * allocated for the standard, mini and jumbo receive rings.
973 */
974
975#ifndef TI_SSLOTS
976#define TI_SSLOTS	256
977#endif
978#ifndef TI_MSLOTS
979#define TI_MSLOTS	256
980#endif
981#ifndef TI_JSLOTS
982#define TI_JSLOTS	384
983#endif
984#define TI_RSLOTS	128
985
986#define TI_JRAWLEN (ETHER_MAX_LEN_JUMBO + ETHER_ALIGN + sizeof(u_int64_t))
987#define TI_JLEN (TI_JRAWLEN + (sizeof(u_int64_t) - \
988	(TI_JRAWLEN % sizeof(u_int64_t))))
989#define TI_JPAGESZ PAGE_SIZE
990#define TI_RESID (TI_JPAGESZ - (TI_JLEN * TI_JSLOTS) % TI_JPAGESZ)
991#define TI_JMEM ((TI_JLEN * TI_JSLOTS) + TI_RESID)
992
993/*
994 * Ring structures. Most of these reside in host memory and we tell
995 * the NIC where they are via the ring control blocks. The exceptions
996 * are the tx and command rings, which live in NIC memory and which
997 * we access via the shared memory window.
998 */
999struct ti_ring_data {
1000	struct ti_rx_desc	ti_rx_std_ring[TI_STD_RX_RING_CNT];
1001	struct ti_rx_desc	ti_rx_jumbo_ring[TI_JUMBO_RX_RING_CNT];
1002	struct ti_rx_desc	ti_rx_mini_ring[TI_MINI_RX_RING_CNT];
1003	struct ti_rx_desc	ti_rx_return_ring[TI_RETURN_RING_CNT];
1004	struct ti_event_desc	ti_event_ring[TI_EVENT_RING_CNT];
1005	struct ti_tx_desc	ti_tx_ring[TI_TX_RING_CNT];
1006	/*
1007	 * Make sure producer structures are aligned on 32-byte cache
1008	 * line boundaries.
1009	 */
1010	struct ti_producer	ti_ev_prodidx_r;
1011	u_int32_t		ti_pad0[6];
1012	struct ti_producer	ti_return_prodidx_r;
1013	u_int32_t		ti_pad1[6];
1014	struct ti_producer	ti_tx_considx_r;
1015	u_int32_t		ti_pad2[6];
1016	struct ti_gib		ti_info;
1017};
1018
1019#define	TI_CDOFF(x)		offsetof(struct ti_ring_data, x)
1020#define	TI_CDRXSTDOFF(x)	TI_CDOFF(ti_rx_std_ring[(x)])
1021#define	TI_CDRXJUMBOOFF(x)	TI_CDOFF(ti_rx_jumbo_ring[(x)])
1022#define	TI_CDRXMINIOFF(x)	TI_CDOFF(ti_rx_mini_ring[(x)])
1023#define	TI_CDRXRTNOFF(x)	TI_CDOFF(ti_rx_return_ring[(x)])
1024#define	TI_CDEVENTOFF(x)	TI_CDOFF(ti_event_ring[(x)])
1025#define	TI_CDTXOFF(x)		TI_CDOFF(ti_tx_ring[(x)])
1026#define	TI_CDEVPRODOFF		TI_CDOFF(ti_ev_prodidx_r)
1027#define	TI_CDRTNPRODOFF		TI_CDOFF(ti_return_prodidx_r)
1028#define	TI_CDTXCONSOFF		TI_CDOFF(ti_tx_considx_r)
1029#define	TI_CDGIBOFF		TI_CDOFF(ti_info)
1030#define	TI_CDSTATSOFF		TI_CDOFF(ti_info.ti_stats)
1031
1032/*
1033 * Mbuf pointers. We need these to keep track of the virtual addresses
1034 * of our mbuf chains since we can only convert from physical to virtual,
1035 * not the other way around.
1036 */
1037struct ti_chain_data {
1038	struct mbuf		*ti_tx_chain[TI_TX_RING_CNT];
1039	struct mbuf		*ti_rx_std_chain[TI_STD_RX_RING_CNT];
1040	struct mbuf		*ti_rx_jumbo_chain[TI_JUMBO_RX_RING_CNT];
1041	struct mbuf		*ti_rx_mini_chain[TI_MINI_RX_RING_CNT];
1042	/* Stick the jumbo mem management stuff here too. */
1043	void *			ti_jslots[TI_JSLOTS];
1044	void			*ti_jumbo_buf;
1045};
1046
1047struct ti_type {
1048	u_int16_t		ti_vid;
1049	u_int16_t		ti_did;
1050	const char		*ti_name;
1051};
1052
1053#define TI_HWREV_TIGON		0x01
1054#define TI_HWREV_TIGON_II	0x02
1055#define TI_TIMEOUT		1000
1056#define TI_TXCONS_UNSET		0xFFFF	/* impossible value */
1057
1058struct ti_mc_entry {
1059	struct ether_addr		mc_addr;
1060	SIMPLEQ_ENTRY(ti_mc_entry)	mc_entries;
1061};
1062
1063struct ti_jpool_entry {
1064	int                             slot;
1065	SIMPLEQ_ENTRY(ti_jpool_entry)	jpool_entries;
1066};
1067
1068struct txdmamap_pool_entry {
1069	bus_dmamap_t dmamap;
1070	SIMPLEQ_ENTRY(txdmamap_pool_entry) link;
1071};
1072
1073struct ti_softc {
1074	device_t sc_dev;
1075	struct ethercom		ethercom;	/* interface info */
1076	bus_space_handle_t	ti_bhandle;
1077	char			*ti_vhandle;
1078	bus_space_tag_t		ti_btag;
1079	void			*ti_intrhand;
1080
1081	struct ifmedia		ifmedia;	/* media info */
1082
1083	u_int8_t		ti_hwrev;	/* Tigon rev (1 or 2) */
1084	u_int8_t		ti_copper;	/* 1000baseT card */
1085	u_int8_t		ti_linkstat;	/* Link state */
1086	struct ti_ring_data	*ti_rdata;	/* rings */
1087#define ti_ev_prodidx		ti_rdata->ti_ev_prodidx_r
1088#define ti_return_prodidx	ti_rdata->ti_return_prodidx_r
1089#define ti_tx_considx		ti_rdata->ti_tx_considx_r
1090
1091	struct ti_tx_desc	*ti_tx_ring_nic;/* pointer to shared mem */
1092
1093	struct ti_chain_data	ti_cdata;	/* mbufs */
1094
1095	uint64_t		ti_if_collisions;
1096
1097	/*
1098	 * Function pointers to deal with Tigon 1 vs. Tigon 2 differences.
1099	 */
1100	int			(*sc_tx_encap)(struct ti_softc *,
1101				    struct mbuf *, uint32_t *);
1102	void			(*sc_tx_eof)(struct ti_softc *);
1103
1104	u_int16_t		ti_tx_saved_considx;
1105	u_int16_t		ti_rx_saved_considx;
1106	u_int16_t		ti_ev_saved_considx;
1107	u_int16_t		ti_cmd_saved_prodidx;
1108	u_int16_t		ti_std;		/* current std ring head */
1109	u_int16_t		ti_mini;	/* current mini ring head */
1110	u_int16_t		ti_jumbo;	/* current jumo ring head */
1111	SIMPLEQ_HEAD(, ti_mc_entry)	ti_mc_listhead;
1112	SIMPLEQ_HEAD(, ti_jpool_entry)	ti_jfree_listhead;
1113	SIMPLEQ_HEAD(, ti_jpool_entry)	ti_jinuse_listhead;
1114	u_int32_t		ti_stat_ticks;
1115	u_int32_t		ti_rx_coal_ticks;
1116	u_int32_t		ti_tx_coal_ticks;
1117	u_int32_t		ti_rx_max_coal_bds;
1118	u_int32_t		ti_tx_max_coal_bds;
1119	u_int32_t		ti_tx_buf_ratio;
1120	u_short			ti_if_flags;
1121	int			ti_txcnt;
1122	void *sc_ih;
1123	bus_dma_tag_t sc_dmat;
1124	bus_dmamap_t info_dmamap; /* holds ti_rdata */
1125	u_int32_t info_dmaaddr; /* XXX 64-bit PCI addresses? */
1126	bus_dmamap_t jumbo_dmamap;
1127	u_int32_t jumbo_dmaaddr; /* XXX 64-bit PCI addresses? */
1128	bus_dmamap_t mini_dmamap[TI_MINI_RX_RING_CNT];
1129	bus_dmamap_t std_dmamap[TI_STD_RX_RING_CNT];
1130	SIMPLEQ_HEAD(, txdmamap_pool_entry) txdma_list;
1131	struct txdmamap_pool_entry *txdma[TI_TX_RING_CNT];
1132};
1133
1134#define	TI_CDRXSTDADDR(sc, x)	((sc)->info_dmaaddr + TI_CDRXSTDOFF((x)))
1135#define	TI_CDRXJUMBOADDR(sc, x)	((sc)->info_dmaaddr + TI_CDRXJUMBOOFF((x)))
1136#define	TI_CDRXMINIADDR(sc, x)	((sc)->info_dmaaddr + TI_CDRXMINIOFF((x)))
1137#define	TI_CDRXRTNADDR(sc, x)	((sc)->info_dmaaddr + TI_CDRXRTNOFF((x)))
1138#define	TI_CDEVENTADDR(sc, x)	((sc)->info_dmaaddr + TI_CDEVENTOFF((x)))
1139#define	TI_CDTXADDR(sc, x)	((sc)->info_dmaaddr + TI_CDTXOFF((x)))
1140#define	TI_CDEVPRODADDR(sc)	((sc)->info_dmaaddr + TI_CDEVPRODOFF)
1141#define	TI_CDRTNPRODADDR(sc)	((sc)->info_dmaaddr + TI_CDRTNPRODOFF)
1142#define	TI_CDTXCONSADDR(sc)	((sc)->info_dmaaddr + TI_CDTXCONSOFF)
1143#define	TI_CDGIBADDR(sc)	((sc)->info_dmaaddr + TI_CDGIBOFF)
1144#define	TI_CDSTATSADDR(sc)	((sc)->info_dmaaddr + TI_CDSTATSOFF)
1145
1146#define	TI_CDRXSTDSYNC(sc, x, ops)					\
1147	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1148	    TI_CDRXSTDOFF((x)), sizeof(struct ti_rx_desc), (ops))
1149
1150#define	TI_CDRXJUMBOSYNC(sc, x, ops)					\
1151	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1152	    TI_CDRXJUMBOOFF((x)), sizeof(struct ti_rx_desc), (ops))
1153
1154#define	TI_CDRXMINISYNC(sc, x, ops)					\
1155	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1156	    TI_CDRXMINIOFF((x)), sizeof(struct ti_rx_desc), (ops))
1157
1158#define	TI_CDRXRTNSYNC(sc, x, ops)					\
1159	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1160	    TI_CDRXRTNOFF((x)), sizeof(struct ti_rx_desc), (ops))
1161
1162#define	TI_CDEVENTSYNC(sc, x, ops)					\
1163	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1164	    TI_CDEVENTOFF((x)), sizeof(struct ti_event_desc), (ops))
1165
1166#define	TI_CDTXSYNC(sc, x, n, ops)					\
1167do {									\
1168	int __x, __n;							\
1169									\
1170	__x = (x);							\
1171	__n = (n);							\
1172									\
1173	/* If it will wrap around, sync to the end of the ring. */	\
1174	if ((__x + __n) > TI_TX_RING_CNT) {				\
1175		bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,	\
1176		    TI_CDTXOFF(__x), sizeof(struct ti_tx_desc) *	\
1177		    (TI_TX_RING_CNT - __x), (ops));			\
1178		__n -= (TI_TX_RING_CNT - __x);				\
1179		__x = 0;						\
1180	}								\
1181									\
1182	/* Now sync whatever is left. */				\
1183	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1184	    TI_CDTXOFF(__x), sizeof(struct ti_tx_desc) * (__n), (ops));	\
1185} while (/*CONSTCOND*/0)
1186
1187#define	TI_CEVPRODSYNC(sc, ops)						\
1188	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1189	    TI_CDEVPRODOFF, sizeof(struct ti_producer), (ops))
1190
1191#define	TI_CDRTNPRODSYNC(sc, ops)					\
1192	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1193	    TI_CDRTNPRODOFF, sizeof(struct ti_producer), (ops))
1194
1195#define	TI_CDTXCONSSYNC(sc, ops)					\
1196	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1197	    TI_CDTXCONSOFF, sizeof(struct ti_producer), (ops))
1198
1199#define	TI_CDGIBSYNC(sc, ops)						\
1200	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1201	    TI_CDGIBOFF, sizeof(struct ti_gib), (ops))
1202
1203#define	TI_CDSTATSSYNC(sc, ops)						\
1204	bus_dmamap_sync((sc)->sc_dmat, (sc)->info_dmamap,		\
1205	    TI_CDSTATSOFF, sizeof(struct ti_stats), (ops))
1206
1207/*
1208 * Microchip Technology 24Cxx EEPROM control bytes
1209 */
1210#define EEPROM_CTL_READ			0xA1	/* 0101 0001 */
1211#define EEPROM_CTL_WRITE		0xA0	/* 0101 0000 */
1212
1213/*
1214 * Note that EEPROM_START leaves transmission enabled.
1215 */
1216#define EEPROM_START()	do {						\
1217	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock pin high */\
1218	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Set DATA bit to 1 */	\
1219	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit to write bit */\
1220	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA bit to 0 again */\
1221	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */	\
1222} while(0)
1223
1224/*
1225 * EEPROM_STOP ends access to the EEPROM and clears the ETXEN bit so
1226 * that no further data can be written to the EEPROM I/O pin.
1227 */
1228#define EEPROM_STOP()	do {							\
1229	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit */	\
1230	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Pull DATA to 0 */	\
1231	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock high */	\
1232	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Enable xmit */	\
1233	TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); /* Toggle DATA to 1 */	\
1234	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); /* Disable xmit. */	\
1235	TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); /* Pull clock low again */ \
1236} while(0)
1237