summaryrefslogtreecommitdiffstats
path: root/sys/pci/if_devar.h
blob: cd89c5a0b2435834a00c4a6d5d64c6e397cbea66 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
/*	$NetBSD: if_devar.h,v 1.32 1999/04/01 14:55:25 tsubai Exp $	*/

/* $FreeBSD$ */

/*-
 * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. The name of the author may not be used to endorse or promote products
 *    derived from this software withough specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Id: if_devar.h,v 1.28 1997/07/03 16:55:07 thomas Exp
 */

#if !defined(_DEVAR_H)
#define _DEVAR_H

#ifdef TULIP_IOMAPPED
#define	TULIP_PCI_CSRSIZE	8
#define	TULIP_PCI_CSROFFSET	0

typedef pci_port_t tulip_csrptr_t;

#define	TULIP_CSR_READ(sc, csr)			(inl((sc)->tulip_csrs.csr))
#define	TULIP_CSR_WRITE(sc, csr, val)   	outl((sc)->tulip_csrs.csr, val)

#define	TULIP_CSR_READBYTE(sc, csr)		(inb((sc)->tulip_csrs.csr))
#define	TULIP_CSR_WRITEBYTE(sc, csr, val)	outb((sc)->tulip_csrs.csr, val)

#else /* TULIP_IOMAPPED */

#define	TULIP_PCI_CSRSIZE	8
#define	TULIP_PCI_CSROFFSET	0

#if defined(__alpha__)

typedef u_int32_t tulip_csrptr_t;

#define	TULIP_CSR_READ(sc, csr)			(readl((sc)->tulip_csrs.csr))
#define	TULIP_CSR_WRITE(sc, csr, val)   	writel((sc)->tulip_csrs.csr, val)

#define	TULIP_CSR_READBYTE(sc, csr)		(readb((sc)->tulip_csrs.csr))
#define	TULIP_CSR_WRITEBYTE(sc, csr, val)	writeb((sc)->tulip_csrs.csr, val)

#else /* __alpha__ */

typedef volatile u_int32_t *tulip_csrptr_t;

/*
 * macros to read and write CSRs.  Note that the "0 +" in
 * READ_CSR is to prevent the macro from being an lvalue
 * and WRITE_CSR shouldn't be assigned from.
 */
#define	TULIP_CSR_READ(sc, csr)		(0 + *(sc)->tulip_csrs.csr)
#define	TULIP_CSR_WRITE(sc, csr, val)	((void)(*(sc)->tulip_csrs.csr = (val)))

#endif /* __alpha__ */

#endif /* TULIP_IOMAPPED */

/*
 * This structure contains "pointers" for the registers on
 * the various 21x4x chips.  CSR0 through CSR8 are common
 * to all chips.  After that, it gets messy...
 */
typedef struct {
    tulip_csrptr_t csr_busmode;			/* CSR0 */
    tulip_csrptr_t csr_txpoll;			/* CSR1 */
    tulip_csrptr_t csr_rxpoll;			/* CSR2 */
    tulip_csrptr_t csr_rxlist;			/* CSR3 */
    tulip_csrptr_t csr_txlist;			/* CSR4 */
    tulip_csrptr_t csr_status;			/* CSR5 */
    tulip_csrptr_t csr_command;			/* CSR6 */
    tulip_csrptr_t csr_intr;			/* CSR7 */
    tulip_csrptr_t csr_missed_frames;		/* CSR8 */
    tulip_csrptr_t csr_9;			/* CSR9 */
    tulip_csrptr_t csr_10;			/* CSR10 */
    tulip_csrptr_t csr_11;			/* CSR11 */
    tulip_csrptr_t csr_12;			/* CSR12 */
    tulip_csrptr_t csr_13;			/* CSR13 */
    tulip_csrptr_t csr_14;			/* CSR14 */
    tulip_csrptr_t csr_15;			/* CSR15 */
} tulip_regfile_t;

#define	csr_enetrom		csr_9	/* 21040 */
#define	csr_reserved		csr_10	/* 21040 */
#define	csr_full_duplex		csr_11	/* 21040 */
#define	csr_bootrom		csr_10	/* 21041/21140A/?? */
#define	csr_gp			csr_12	/* 21140* */
#define	csr_watchdog		csr_15	/* 21140* */
#define	csr_gp_timer		csr_11	/* 21041/21140* */
#define	csr_srom_mii		csr_9	/* 21041/21140* */
#define	csr_sia_status		csr_12	/* 2104x */
#define csr_sia_connectivity	csr_13	/* 2104x */
#define csr_sia_tx_rx		csr_14	/* 2104x */
#define csr_sia_general		csr_15	/* 2104x */

/*
 * While 21x4x allows chaining of its descriptors, this driver
 * doesn't take advantage of it.  We keep the descriptors in a
 * traditional FIFO ring.  
 */
typedef struct {
    tulip_desc_t *ri_first;	/* first entry in ring */
    tulip_desc_t *ri_last;	/* one after last entry */
    tulip_desc_t *ri_nextin;	/* next to processed by host */
    tulip_desc_t *ri_nextout;	/* next to processed by adapter */
    int ri_max;
    int ri_free;
} tulip_ringinfo_t;

/*
 * The 21040 has a stupid restriction in that the receive
 * buffers must be longword aligned.  But since Ethernet
 * headers are not a multiple of longwords in size this forces
 * the data to non-longword aligned.  Since IP requires the
 * data to be longword aligned, we need to copy it after it has
 * been DMA'ed in our memory.
 *
 * Since we have to copy it anyways, we might as well as allocate
 * dedicated receive space for the input.  This allows to use a
 * small receive buffer size and more ring entries to be able to
 * better keep with a flood of tiny Ethernet packets.
 *
 * The receive space MUST ALWAYS be a multiple of the page size.
 * And the number of receive descriptors multiplied by the size
 * of the receive buffers must equal the recevive space.  This
 * is so that we can manipulate the page tables so that even if a
 * packet wraps around the end of the receive space, we can 
 * treat it as virtually contiguous.
 *
 * The above used to be true (the stupid restriction is still true)
 * but we gone to directly DMA'ing into MBUFs (unless it's on an 
 * architecture which can't handle unaligned accesses) because with
 * 100Mb/s cards the copying is just too much of a hit.
 */
#if !defined(__i386__) && !defined(__vax__)
#define	TULIP_COPY_RXDATA	1
#endif

#define	TULIP_DATA_PER_DESC	2032
#define	TULIP_TXTIMER		4
#define	TULIP_RXDESCS		48
#define	TULIP_TXDESCS		128
#define	TULIP_RXQ_TARGET	32
#if TULIP_RXQ_TARGET >= TULIP_RXDESCS
#error TULIP_RXQ_TARGET must be less than TULIP_RXDESCS
#endif
#define	TULIP_RX_BUFLEN		((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)

/*
 * Forward reference to make C happy.
 */
typedef struct _tulip_softc_t tulip_softc_t;

/*
 * The various controllers support.
 */

typedef enum {
    TULIP_21040,
    TULIP_21041,
    TULIP_21140, TULIP_21140A, TULIP_21142,
    TULIP_21143,
    TULIP_CHIPID_UNKNOWN
} tulip_chipid_t;

/*
 * Various physical media types supported.
 * BNCAUI is BNC or AUI since on the 21040 you can't really tell
 * which is in use.
 */
typedef enum {
    TULIP_MEDIA_UNKNOWN,
    TULIP_MEDIA_10BASET,
    TULIP_MEDIA_10BASET_FD,
    TULIP_MEDIA_BNC,
    TULIP_MEDIA_AUI,
    TULIP_MEDIA_EXTSIA,
    TULIP_MEDIA_AUIBNC,
    TULIP_MEDIA_100BASETX,
    TULIP_MEDIA_100BASETX_FD,
    TULIP_MEDIA_100BASET4,
    TULIP_MEDIA_100BASEFX,
    TULIP_MEDIA_100BASEFX_FD,
    TULIP_MEDIA_MAX
} tulip_media_t;

#define	TULIP_BIT(b)		(1L << ((int)(b)))
#define	TULIP_FDBIT(m)		(1L << ((int)TULIP_MEDIA_ ## m ## _FD))
#define	TULIP_MBIT(m)		(1L << ((int)TULIP_MEDIA_ ## m ))
#define	TULIP_IS_MEDIA_FD(m)	(TULIP_BIT(m) & \
				 (TULIP_FDBIT(10BASET) \
				  |TULIP_FDBIT(100BASETX) \
				  |TULIP_FDBIT(100BASEFX)))
#define	TULIP_CAN_MEDIA_FD(m)	(TULIP_BIT(m) & \
				 (TULIP_MBIT(10BASET) \
				  |TULIP_MBIT(100BASETX) \
				  |TULIP_MBIT(100BASEFX)))
#define	TULIP_FD_MEDIA_OF(m)	((tulip_media_t)((m) + 1))
#define	TULIP_HD_MEDIA_OF(m)	((tulip_media_t)((m) - 1))
#define	TULIP_IS_MEDIA_100MB(m)	((m) >= TULIP_MEDIA_100BASETX)
#define	TULIP_IS_MEDIA_TP(m)	((TULIP_BIT(m) & \
				  (TULIP_MBIT(BNC) \
				   |TULIP_MBIT(AUI) \
				   |TULIP_MBIT(AUIBNC) \
				   |TULIP_MBIT(EXTSIA))) == 0)

#define	TULIP_SROM_ATTR_MII		0x0100
#define	TULIP_SROM_ATTR_NWAY		0x0200
#define	TULIP_SROM_ATTR_AUTOSENSE	0x0400
#define	TULIP_SROM_ATTR_POWERUP		0x0800
#define	TULIP_SROM_ATTR_NOLINKPASS	0x1000

typedef struct {
    enum {
	TULIP_MEDIAINFO_NONE,
	TULIP_MEDIAINFO_SIA,
	TULIP_MEDIAINFO_GPR,
	TULIP_MEDIAINFO_MII,
	TULIP_MEDIAINFO_RESET,
	TULIP_MEDIAINFO_SYM
    } mi_type;
    union {
	struct {
	    u_int16_t sia_connectivity;
	    u_int16_t sia_tx_rx;
	    u_int16_t sia_general;
	    u_int32_t sia_gp_control;	/* 21142/21143 */
	    u_int32_t sia_gp_data;	/* 21142/21143 */
	} un_sia;
	struct {
	    u_int32_t gpr_cmdmode;
	    u_int32_t gpr_gpcontrol;	/* 21142/21143 */
	    u_int32_t gpr_gpdata;
	    u_int8_t gpr_actmask;
	    u_int8_t gpr_actdata;
	    u_int    gpr_default : 1;
	} un_gpr;
	struct {
	    u_int32_t mii_mediamask;
	    u_int16_t mii_capabilities;
	    u_int16_t mii_advertisement;
	    u_int16_t mii_full_duplex;
	    u_int16_t mii_tx_threshold;
	    u_int16_t mii_interrupt;	/* 21142/21143 */
	    u_int8_t mii_phyaddr;
	    u_int8_t mii_gpr_length;
	    u_int8_t mii_gpr_offset;
	    u_int8_t mii_reset_length;
	    u_int8_t mii_reset_offset;
	    u_int32_t mii_phyid;
	} un_mii;
    } mi_un;
} tulip_media_info_t;

#define	mi_sia_connectivity	mi_un.un_sia.sia_connectivity
#define	mi_sia_tx_rx		mi_un.un_sia.sia_tx_rx
#define mi_sia_general		mi_un.un_sia.sia_general
#define	mi_sia_gp_control	mi_un.un_sia.sia_gp_control
#define	mi_sia_gp_data		mi_un.un_sia.sia_gp_data

#define	mi_gpcontrol		mi_un.un_gpr.gpr_gpcontrol
#define	mi_gpdata		mi_un.un_gpr.gpr_gpdata
#define	mi_actmask		mi_un.un_gpr.gpr_actmask
#define	mi_actdata		mi_un.un_gpr.gpr_actdata
#define	mi_default		mi_un.un_gpr.gpr_default
#define	mi_cmdmode		mi_un.un_gpr.gpr_cmdmode

#define	mi_phyaddr		mi_un.un_mii.mii_phyaddr
#define	mi_gpr_length		mi_un.un_mii.mii_gpr_length
#define	mi_gpr_offset		mi_un.un_mii.mii_gpr_offset
#define	mi_reset_length		mi_un.un_mii.mii_reset_length
#define	mi_reset_offset		mi_un.un_mii.mii_reset_offset
#define	mi_capabilities		mi_un.un_mii.mii_capabilities
#define	mi_advertisement	mi_un.un_mii.mii_advertisement
#define	mi_full_duplex		mi_un.un_mii.mii_full_duplex
#define	mi_tx_threshold		mi_un.un_mii.mii_tx_threshold
#define	mi_mediamask		mi_un.un_mii.mii_mediamask
#define	mi_mii_interrupt	mi_un.un_mii.mii_interrupt
#define	mi_phyid		mi_un.un_mii.mii_phyid

#define	TULIP_MEDIAINFO_SIA_INIT(sc, mi, chipid, media) do { \
    (mi)->mi_type = TULIP_MEDIAINFO_SIA; \
    sc->tulip_mediums[TULIP_MEDIA_ ## media] = (mi); \
    (mi)->mi_sia_connectivity = TULIP_ ## chipid ## _SIACONN_ ## media; \
    (mi)->mi_sia_tx_rx        = TULIP_ ## chipid ## _SIATXRX_ ## media; \
    (mi)->mi_sia_general      = TULIP_ ## chipid ## _SIAGEN_ ## media; \
} while (0)

#define TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, media) do {	\
    if ((sc)->tulip_mediums[TULIP_MEDIA_ ## media] == NULL	\
	    && ((mi)->mi_capabilities & PHYSTS_ ## media)) {	\
	(sc)->tulip_mediums[TULIP_MEDIA_ ## media] = (mi);	\
	(mi)->mi_mediamask |= TULIP_BIT(TULIP_MEDIA_ ## media);	\
    } \
} while (0)

#define	TULIP_MII_NOPHY		32
/*
 * Some boards need to treated specially.  The following enumeration
 * identifies the cards with quirks (or those we just want to single
 * out for special merit or scorn).
 */
typedef enum {
    TULIP_21040_GENERIC,		/* Generic 21040 (works with most any board) */
    TULIP_21140_ISV,			/* Digital Semicondutor 21140 ISV SROM Format */
    TULIP_21142_ISV,			/* Digital Semicondutor 21142 ISV SROM Format */
    TULIP_21143_ISV,			/* Digital Semicondutor 21143 ISV SROM Format */
    TULIP_21140_DEC_EB,			/* Digital Semicondutor 21140 Evaluation Board */
    TULIP_21140_MII,			/* 21140[A] with MII */
    TULIP_21140_DEC_DE500,		/* Digital DE500-?? 10/100 */
    TULIP_21140_SMC_9332,		/* SMC 9332 */
    TULIP_21140_COGENT_EM100,		/* Cogent EM100 100 only */
    TULIP_21140_ZNYX_ZX34X,		/* ZNYX ZX342 10/100 */
    TULIP_21140_ASANTE,			/* AsanteFast 10/100 */
    TULIP_21140_EN1207,			/* Accton EN2107 10/100 BNC */
    TULIP_21041_GENERIC			/* Generic 21041 card */
} tulip_board_t;

typedef enum {
    TULIP_MEDIAPOLL_TIMER,		/* 100ms timer fired */
    TULIP_MEDIAPOLL_FASTTIMER,		/* <100ms timer fired */
    TULIP_MEDIAPOLL_LINKFAIL,		/* called from interrupt routine */
    TULIP_MEDIAPOLL_LINKPASS,		/* called from interrupt routine */
    TULIP_MEDIAPOLL_START,		/* start a media probe (called from reset) */
    TULIP_MEDIAPOLL_TXPROBE_OK,		/* txprobe succeeded */
    TULIP_MEDIAPOLL_TXPROBE_FAILED,	/* txprobe failed */
    TULIP_MEDIAPOLL_MAX
} tulip_mediapoll_event_t;

typedef enum {
    TULIP_LINK_DOWN,			/* Link is down */
    TULIP_LINK_UP,			/* link is ok */
    TULIP_LINK_UNKNOWN			/* we can't tell either way */
} tulip_link_status_t;


/*
 * This data structure is used to abstract out the quirks.
 * media_probe  = tries to determine the media type.
 * media_select = enables the current media (or autosenses)
 * media_poll	= autosenses media
 * media_preset = 21140, etal requires bit to set before the
 *		  the software reset; hence pre-set.  Should be
 *		  pre-reset but that's ugly.
 */

typedef struct {
    tulip_board_t bd_type;
    void (*bd_media_probe)(tulip_softc_t * const sc);
    void (*bd_media_select)(tulip_softc_t * const sc);
    void (*bd_media_poll)(tulip_softc_t * const sc, tulip_mediapoll_event_t event);
    void (*bd_media_preset)(tulip_softc_t * const sc);
} tulip_boardsw_t;

/*
 * The next few declarations are for MII/PHY based board.
 *
 *    The first enumeration identifies a superset of various datums
 * that can be obtained from various PHY chips.  Not all PHYs will
 * support all datums.
 *    The modedata structure indicates what register contains
 * a datum, what mask is applied the register contents, and what the
 * result should be.
 *    The attr structure records information about a supported PHY.
 *    The phy structure records information about a PHY instance.
 */

typedef enum {
    PHY_MODE_10T,
    PHY_MODE_100TX,
    PHY_MODE_100T4,
    PHY_MODE_FULLDUPLEX,
    PHY_MODE_MAX
} tulip_phy_mode_t;

typedef struct {
    u_int16_t pm_regno;
    u_int16_t pm_mask;
    u_int16_t pm_value;
} tulip_phy_modedata_t;

typedef struct {
    u_int32_t attr_id;
    u_int16_t attr_flags;
#define	PHY_NEED_HARD_RESET	0x0001
#define	PHY_DUAL_CYCLE_TA	0x0002
    tulip_phy_modedata_t attr_modes[PHY_MODE_MAX];
#ifdef TULIP_DEBUG
    const char *attr_name;
#endif
} tulip_phy_attr_t;

/*
 * Various probe states used when trying to autosense the media.
 */

typedef enum {
    TULIP_PROBE_INACTIVE,
    TULIP_PROBE_PHYRESET,
    TULIP_PROBE_PHYAUTONEG,
    TULIP_PROBE_GPRTEST,
    TULIP_PROBE_MEDIATEST,
    TULIP_PROBE_FAILED
} tulip_probe_state_t;

typedef struct {
    /*
     * Transmit Statistics
     */
    u_int32_t dot3StatsSingleCollisionFrames;
    u_int32_t dot3StatsMultipleCollisionFrames;
    u_int32_t dot3StatsSQETestErrors;
    u_int32_t dot3StatsDeferredTransmissions;
    u_int32_t dot3StatsLateCollisions;
    u_int32_t dot3StatsExcessiveCollisions;
    u_int32_t dot3StatsCarrierSenseErrors;
    u_int32_t dot3StatsInternalMacTransmitErrors;
    u_int32_t dot3StatsInternalTransmitUnderflows;	/* not in rfc1650! */
    u_int32_t dot3StatsInternalTransmitBabbles;		/* not in rfc1650! */
    /*
     * Receive Statistics
     */
    u_int32_t dot3StatsMissedFrames;	/* not in rfc1650! */
    u_int32_t dot3StatsAlignmentErrors;
    u_int32_t dot3StatsFCSErrors;
    u_int32_t dot3StatsFrameTooLongs;
    u_int32_t dot3StatsInternalMacReceiveErrors;
} tulip_dot3_stats_t;

/*
 * Now to important stuff.  This is softc structure (where does softc
 * come from??? No idea) for the tulip device.  
 */
struct _tulip_softc_t {
    struct ifmedia tulip_ifmedia;
#if defined(TULIP_BUS_DMA)
    bus_dma_tag_t tulip_dmatag;		/* bus DMA tag */
#if !defined(TULIP_BUS_DMA_NOTX)
    bus_dmamap_t tulip_setupmap;
    bus_dmamap_t tulip_txdescmap;
    bus_dmamap_t tulip_txmaps[TULIP_TXDESCS];
    unsigned tulip_txmaps_free;
#endif
#if !defined(TULIP_BUS_DMA_NORX)
    bus_dmamap_t tulip_rxdescmap;
    bus_dmamap_t tulip_rxmaps[TULIP_RXDESCS];
    unsigned tulip_rxmaps_free;
#endif
#endif
    struct arpcom tulip_ac;
    tulip_regfile_t tulip_csrs;
    u_int32_t tulip_flags;
#define	TULIP_WANTSETUP		0x00000001
#define	TULIP_WANTHASHPERFECT	0x00000002
#define	TULIP_WANTHASHONLY	0x00000004
#define	TULIP_DOINGSETUP	0x00000008
#define	TULIP_PRINTMEDIA	0x00000010
#define	TULIP_TXPROBE_ACTIVE	0x00000020
#define	TULIP_ALLMULTI		0x00000040
#define	TULIP_WANTRXACT		0x00000080
#define	TULIP_RXACT		0x00000100
#define	TULIP_INRESET		0x00000200
#define	TULIP_NEEDRESET		0x00000400
#define	TULIP_SQETEST		0x00000800
#define	TULIP_xxxxxx0		0x00001000
#define	TULIP_xxxxxx1		0x00002000
#define	TULIP_WANTTXSTART	0x00004000
#define	TULIP_NEWTXTHRESH	0x00008000
#define	TULIP_NOAUTOSENSE	0x00010000
#define	TULIP_PRINTLINKUP	0x00020000
#define	TULIP_LINKUP		0x00040000
#define	TULIP_RXBUFSLOW		0x00080000
#define	TULIP_NOMESSAGES	0x00100000
#define	TULIP_SYSTEMERROR	0x00200000
#define	TULIP_TIMEOUTPENDING	0x00400000
#define	TULIP_xxxxxx2		0x00800000
#define	TULIP_TRYNWAY		0x01000000
#define	TULIP_DIDNWAY		0x02000000
#define	TULIP_RXIGNORE		0x04000000
#define	TULIP_PROBE1STPASS	0x08000000
#define	TULIP_DEVICEPROBE	0x10000000
#define	TULIP_PROMISC		0x20000000
#define	TULIP_HASHONLY		0x40000000
#define	TULIP_xxxxxx3		0x80000000
    /* only 4 bits left! */
    u_int32_t tulip_features;	/* static bits indicating features of chip */
#define	TULIP_HAVE_GPR		0x00000001	/* have gp register (140[A]) */
#define	TULIP_HAVE_RXBADOVRFLW	0x00000002	/* RX corrupts on overflow */
#define	TULIP_HAVE_POWERMGMT	0x00000004	/* Snooze/sleep modes */
#define	TULIP_HAVE_MII		0x00000008	/* Some medium on MII */
#define	TULIP_HAVE_SIANWAY	0x00000010	/* SIA does NWAY */
#define	TULIP_HAVE_DUALSENSE	0x00000020	/* SIA senses both AUI & TP */
#define	TULIP_HAVE_SIAGP	0x00000040	/* SIA has a GP port */
#define	TULIP_HAVE_BROKEN_HASH	0x00000080	/* Broken Multicast Hash */
#define	TULIP_HAVE_ISVSROM	0x00000100	/* uses ISV SROM Format */
#define	TULIP_HAVE_BASEROM	0x00000200	/* Board ROM can be cloned */
#define	TULIP_HAVE_SLAVEDROM	0x00000400	/* Board ROM cloned */
#define	TULIP_HAVE_SLAVEDINTR	0x00000800	/* Board slaved interrupt */
#define	TULIP_HAVE_SHAREDINTR	0x00001000	/* Board shares interrupts */
#define	TULIP_HAVE_OKROM	0x00002000	/* ROM was recognized */
#define	TULIP_HAVE_NOMEDIA	0x00004000	/* did not detect any media */
#define	TULIP_HAVE_STOREFWD	0x00008000	/* have CMD_STOREFWD */
#define	TULIP_HAVE_SIA100	0x00010000	/* has LS100 in SIA status */
#define	TULIP_HAVE_OKSROM	0x00020000	/* SROM CRC is OK */
    u_int32_t tulip_intrmask;	/* our copy of csr_intr */
    u_int32_t tulip_cmdmode;	/* our copy of csr_cmdmode */
    u_int32_t tulip_last_system_error : 3;	/* last system error (only value is TULIP_SYSTEMERROR is also set) */
    u_int32_t tulip_txtimer : 2;	/* transmission timer */
    u_int32_t tulip_system_errors;	/* number of system errors encountered */
    u_int32_t tulip_statusbits;	/* status bits from CSR5 that may need to be printed */

    tulip_media_info_t *tulip_mediums[TULIP_MEDIA_MAX];	/* indexes into mediainfo */
    tulip_media_t tulip_media;			/* current media type */
    u_int32_t tulip_abilities;	/* remote system's abiltities (as defined in IEEE 802.3u) */

    u_int8_t tulip_revinfo;			/* revision of chip */
    u_int8_t tulip_phyaddr;			/* 0..31 -- address of current phy */
    u_int8_t tulip_gpinit;			/* active pins on 21140 */
    u_int8_t tulip_gpdata;			/* default gpdata for 21140 */

    struct {
	u_int8_t probe_count;			/* count of probe operations */
	int32_t probe_timeout;			/* time in ms of probe timeout */
	tulip_probe_state_t probe_state;	/* current media probe state */
	tulip_media_t probe_media;		/* current media being probed */
	u_int32_t probe_mediamask;		/* medias checked */
	u_int32_t probe_passes;			/* times autosense failed */
	u_int32_t probe_txprobes;		/* txprobes attempted */
    } tulip_probe;
#define	tulip_probe_count	tulip_probe.probe_count
#define	tulip_probe_timeout	tulip_probe.probe_timeout
#define	tulip_probe_state	tulip_probe.probe_state
#define	tulip_probe_media	tulip_probe.probe_media
#define	tulip_probe_mediamask	tulip_probe.probe_mediamask
#define	tulip_probe_passes	tulip_probe.probe_passes

    tulip_chipid_t tulip_chipid;		/* type of chip we are using */
    const tulip_boardsw_t *tulip_boardsw;	/* board/chip characteristics */
    tulip_softc_t *tulip_slaves;		/* slaved devices (ZX3xx) */
#if defined(TULIP_DEBUG)
    /*
     * Debugging/Statistical information
     */
    struct {
	tulip_media_t dbg_last_media;
	u_int32_t dbg_intrs;
	u_int32_t dbg_media_probes;
	u_int32_t dbg_txprobe_nocarr;
	u_int32_t dbg_txprobe_exccoll;
	u_int32_t dbg_link_downed;
	u_int32_t dbg_link_suspected;
	u_int32_t dbg_link_intrs;
	u_int32_t dbg_link_pollintrs;
	u_int32_t dbg_link_failures;
	u_int32_t dbg_nway_starts;
	u_int32_t dbg_nway_failures;
	u_int16_t dbg_phyregs[32][4];
	u_int32_t dbg_rxlowbufs;
	u_int32_t dbg_rxintrs;
	u_int32_t dbg_last_rxintrs;
	u_int32_t dbg_high_rxintrs_hz;
	u_int32_t dbg_no_txmaps;
	u_int32_t dbg_txput_finishes[8];
	u_int32_t dbg_txprobes_ok[TULIP_MEDIA_MAX];
	u_int32_t dbg_txprobes_failed[TULIP_MEDIA_MAX];
	u_int32_t dbg_events[TULIP_MEDIAPOLL_MAX];
	u_int32_t dbg_rxpktsperintr[TULIP_RXDESCS];
    } tulip_dbg;
#endif
#if defined(TULIP_PERFSTATS)
#define	TULIP_PERF_CURRENT	0
#define	TULIP_PERF_PREVIOUS	1
#define	TULIP_PERF_TOTAL	2
#define	TULIP_PERF_MAX		3
    struct tulip_perfstats {
	u_quad_t perf_intr_cycles;
	u_quad_t perf_ifstart_cycles;
	u_quad_t perf_ifstart_one_cycles;
	u_quad_t perf_ifioctl_cycles;
	u_quad_t perf_ifwatchdog_cycles;
	u_quad_t perf_timeout_cycles;
	u_quad_t perf_txput_cycles;
	u_quad_t perf_txintr_cycles;
	u_quad_t perf_rxintr_cycles;
	u_quad_t perf_rxget_cycles;
	unsigned perf_intr;
	unsigned perf_ifstart;
	unsigned perf_ifstart_one;
	unsigned perf_ifioctl;
	unsigned perf_ifwatchdog;
	unsigned perf_timeout;
	unsigned perf_txput;
	unsigned perf_txintr;
	unsigned perf_rxintr;
	unsigned perf_rxget;
    } tulip_perfstats[TULIP_PERF_MAX];
#define	tulip_curperfstats		tulip_perfstats[TULIP_PERF_CURRENT]
#endif
    struct ifqueue tulip_txq;
    struct ifqueue tulip_rxq;
    tulip_dot3_stats_t tulip_dot3stats;
    tulip_ringinfo_t tulip_rxinfo;
    tulip_ringinfo_t tulip_txinfo;
    tulip_media_info_t tulip_mediainfo[10];
    /*
     * The setup buffers for sending the setup frame to the chip.
     * one is the one being sent while the other is the one being
     * filled.
     */
    u_int32_t tulip_setupbuf[192/sizeof(u_int32_t)];
    u_int32_t tulip_setupdata[192/sizeof(u_int32_t)];
    char tulip_boardid[16];		/* buffer for board ID */
    u_int8_t tulip_rombuf[128];
    u_int8_t tulip_pci_busno;		/* needed for multiport boards */
    u_int8_t tulip_pci_devno;		/* needed for multiport boards */
    u_int8_t tulip_connidx;
    tulip_srom_connection_t tulip_conntype;
    tulip_desc_t *tulip_rxdescs;
    tulip_desc_t *tulip_txdescs;
};

#define	TULIP_DO_AUTOSENSE(sc)	(IFM_SUBTYPE((sc)->tulip_ifmedia.ifm_media) == IFM_AUTO)


#if defined(TULIP_HDR_DATA)
static const char * const tulip_chipdescs[] = { 
    "21040 [10Mb/s]",
    "21041 [10Mb/s]",
    "21140 [10-100Mb/s]",
    "21140A [10-100Mb/s]",
    "21142 [10-100Mb/s]",
    "21143 [10-100Mb/s]",
};

static const char * const tulip_mediums[] = {
    "unknown",			/* TULIP_MEDIA_UNKNOWN */
    "10baseT",			/* TULIP_MEDIA_10BASET */
    "Full Duplex 10baseT",	/* TULIP_MEDIA_10BASET_FD */
    "BNC",			/* TULIP_MEDIA_BNC */
    "AUI",			/* TULIP_MEDIA_AUI */
    "External SIA",		/* TULIP_MEDIA_EXTSIA */
    "AUI/BNC",			/* TULIP_MEDIA_AUIBNC */
    "100baseTX",		/* TULIP_MEDIA_100BASET */
    "Full Duplex 100baseTX",	/* TULIP_MEDIA_100BASET_FD */
    "100baseT4",		/* TULIP_MEDIA_100BASET4 */
    "100baseFX",		/* TULIP_MEDIA_100BASEFX */
    "Full Duplex 100baseFX",	/* TULIP_MEDIA_100BASEFX_FD */
};

static const int tulip_media_to_ifmedia[] = {
    IFM_ETHER | IFM_NONE,		/* TULIP_MEDIA_UNKNOWN */
    IFM_ETHER | IFM_10_T,		/* TULIP_MEDIA_10BASET */
    IFM_ETHER | IFM_10_T | IFM_FDX,	/* TULIP_MEDIA_10BASET_FD */
    IFM_ETHER | IFM_10_2,		/* TULIP_MEDIA_BNC */
    IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUI */
    IFM_ETHER | IFM_MANUAL,		/* TULIP_MEDIA_EXTSIA */
    IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUIBNC */
    IFM_ETHER | IFM_100_TX,		/* TULIP_MEDIA_100BASET */
    IFM_ETHER | IFM_100_TX | IFM_FDX,	/* TULIP_MEDIA_100BASET_FD */
    IFM_ETHER | IFM_100_T4,		/* TULIP_MEDIA_100BASET4 */
    IFM_ETHER | IFM_100_FX,		/* TULIP_MEDIA_100BASEFX */
    IFM_ETHER | IFM_100_FX | IFM_FDX,	/* TULIP_MEDIA_100BASEFX_FD */
};

static const char * const tulip_system_errors[] = {
    "parity error",
    "master abort",
    "target abort",
    "reserved #3",
    "reserved #4",
    "reserved #5",
    "reserved #6",
    "reserved #7",
};

static const char * const tulip_status_bits[] = {
    NULL,
    "transmit process stopped",
    NULL,
    "transmit jabber timeout",

    NULL,
    "transmit underflow",
    NULL,
    "receive underflow",

    "receive process stopped",
    "receive watchdog timeout",
    NULL,
    NULL,

    "link failure",
    NULL,
    NULL,
};

static const struct {
    tulip_srom_connection_t sc_type;
    tulip_media_t sc_media;
    u_int32_t sc_attrs;
} tulip_srom_conninfo[] = {
    { TULIP_SROM_CONNTYPE_10BASET,		TULIP_MEDIA_10BASET },
    { TULIP_SROM_CONNTYPE_BNC,			TULIP_MEDIA_BNC },
    { TULIP_SROM_CONNTYPE_AUI,			TULIP_MEDIA_AUI },
    { TULIP_SROM_CONNTYPE_100BASETX,		TULIP_MEDIA_100BASETX },
    { TULIP_SROM_CONNTYPE_100BASET4,		TULIP_MEDIA_100BASET4 },
    { TULIP_SROM_CONNTYPE_100BASEFX,		TULIP_MEDIA_100BASEFX },
    { TULIP_SROM_CONNTYPE_MII_10BASET,		TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASETX,	TULIP_MEDIA_100BASETX,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASET4,	TULIP_MEDIA_100BASET4,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_MII_100BASEFX,	TULIP_MEDIA_100BASEFX,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_10BASET_NWAY,		TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_NWAY },
    { TULIP_SROM_CONNTYPE_10BASET_FD,		TULIP_MEDIA_10BASET_FD },
    { TULIP_SROM_CONNTYPE_MII_10BASET_FD,	TULIP_MEDIA_10BASET_FD,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_100BASETX_FD,		TULIP_MEDIA_100BASETX_FD },
    { TULIP_SROM_CONNTYPE_MII_100BASETX_FD,	TULIP_MEDIA_100BASETX_FD,
		TULIP_SROM_ATTR_MII },
    { TULIP_SROM_CONNTYPE_10BASET_NOLINKPASS,	TULIP_MEDIA_10BASET,
		TULIP_SROM_ATTR_NOLINKPASS },
    { TULIP_SROM_CONNTYPE_AUTOSENSE,		TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE },
    { TULIP_SROM_CONNTYPE_AUTOSENSE_POWERUP,	TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_POWERUP },
    { TULIP_SROM_CONNTYPE_AUTOSENSE_NWAY,	TULIP_MEDIA_UNKNOWN,
		TULIP_SROM_ATTR_AUTOSENSE|TULIP_SROM_ATTR_NWAY },
    { TULIP_SROM_CONNTYPE_NOT_USED,		TULIP_MEDIA_UNKNOWN }
};
#define	TULIP_SROM_LASTCONNIDX	\
		(sizeof(tulip_srom_conninfo)/sizeof(tulip_srom_conninfo[0]) - 1)

static const struct {
    tulip_media_t sm_type;
    tulip_srom_media_t sm_srom_type;
} tulip_srom_mediums[] = {
    { 	TULIP_MEDIA_100BASEFX_FD,	TULIP_SROM_MEDIA_100BASEFX_FD	},
    {	TULIP_MEDIA_100BASEFX,		TULIP_SROM_MEDIA_100BASEFX	},
    {	TULIP_MEDIA_100BASET4,		TULIP_SROM_MEDIA_100BASET4	},
    {	TULIP_MEDIA_100BASETX_FD,	TULIP_SROM_MEDIA_100BASETX_FD	},
    {	TULIP_MEDIA_100BASETX,		TULIP_SROM_MEDIA_100BASETX	},
    {	TULIP_MEDIA_10BASET_FD,		TULIP_SROM_MEDIA_10BASET_FD	},
    {	TULIP_MEDIA_AUI,		TULIP_SROM_MEDIA_AUI		},
    {	TULIP_MEDIA_BNC,		TULIP_SROM_MEDIA_BNC		},
    {	TULIP_MEDIA_10BASET,		TULIP_SROM_MEDIA_10BASET	},
    {	TULIP_MEDIA_UNKNOWN						}
};
#endif /* TULIP_HDR_DATA */

/*
 * This driver supports a maximum of 32 tulip boards.
 * This should be enough for the forseeable future.
 */
#define	TULIP_MAX_DEVICES	32

#if defined(TULIP_USE_SOFTINTR) && defined(TULIP_HDR_DATA)
static u_int32_t tulip_softintr_mask;
static int tulip_softintr_last_unit;
static int tulip_softintr_max_unit;
static void tulip_softintr(void);
#endif

#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX)
#define TULIP_RXDESC_PRESYNC(sc, di, s)	\
	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_rxdescmap, \
		   (caddr_t) di - (caddr_t) (sc)->tulip_rxdescs, \
		   (s), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
#define TULIP_RXDESC_POSTSYNC(sc, di, s)	\
	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_rxdescmap, \
		   (caddr_t) di - (caddr_t) (sc)->tulip_rxdescs, \
		   (s), BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
#define	TULIP_RXMAP_PRESYNC(sc, map) \
	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
			BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
#define	TULIP_RXMAP_POSTSYNC(sc, map) \
	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
			BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
#define	TULIP_RXMAP_CREATE(sc, mapp) \
	bus_dmamap_create((sc)->tulip_dmatag, TULIP_RX_BUFLEN, 2, \
			  TULIP_DATA_PER_DESC, 0, \
			  BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW, (mapp))
#else
#ifdef __alpha__
#define TULIP_RXDESC_PRESYNC(sc, di, s)		alpha_mb()
#define TULIP_RXDESC_POSTSYNC(sc, di, s)	alpha_mb()
#define TULIP_RXMAP_PRESYNC(sc, map)		alpha_mb()
#define TULIP_RXMAP_POSTSYNC(sc, map)		alpha_mb()
#else
#define TULIP_RXDESC_PRESYNC(sc, di, s)		do { } while (0)
#define TULIP_RXDESC_POSTSYNC(sc, di, s)	do { } while (0)
#define TULIP_RXMAP_PRESYNC(sc, map)		do { } while (0)
#define TULIP_RXMAP_POSTSYNC(sc, map)		do { } while (0)
#endif
#define TULIP_RXMAP_CREATE(sc, mapp)		do { } while (0)
#endif

#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX)
#define TULIP_TXDESC_PRESYNC(sc, di, s)	\
	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_txdescmap, \
			(caddr_t) di - (caddr_t) (sc)->tulip_txdescs, \
			(s), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
#define TULIP_TXDESC_POSTSYNC(sc, di, s)	\
	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_txdescmap, \
			(caddr_t) di - (caddr_t) (sc)->tulip_txdescs, \
			(s), BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
#define	TULIP_TXMAP_PRESYNC(sc, map) \
	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
			BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
#define	TULIP_TXMAP_POSTSYNC(sc, map) \
	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
			BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
#define	TULIP_TXMAP_CREATE(sc, mapp) \
	bus_dmamap_create((sc)->tulip_dmatag, TULIP_DATA_PER_DESC, \
			  TULIP_MAX_TXSEG, TULIP_DATA_PER_DESC, \
			  0, BUS_DMA_NOWAIT, (mapp))
#else
#ifdef __alpha__
#define TULIP_TXDESC_PRESYNC(sc, di, s)		alpha_mb()
#define TULIP_TXDESC_POSTSYNC(sc, di, s)	alpha_mb()
#define TULIP_TXMAP_PRESYNC(sc, map)		alpha_mb()
#define TULIP_TXMAP_POSTSYNC(sc, map)		alpha_mb()
#else
#define TULIP_TXDESC_PRESYNC(sc, di, s)		do { } while (0)
#define TULIP_TXDESC_POSTSYNC(sc, di, s)	do { } while (0)
#define TULIP_TXMAP_PRESYNC(sc, map)		do { } while (0)
#define TULIP_TXMAP_POSTSYNC(sc, map)		do { } while (0)
#endif
#define TULIP_TXMAP_CREATE(sc, mapp)		do { } while (0)
#endif

#ifdef notyet
#define	SIOCGADDRROM		_IOW('i', 240, struct ifreq)	/* get 128 bytes of ROM */
#define	SIOCGCHIPID		_IOWR('i', 241, struct ifreq)	/* get chipid */
#endif

#if defined(TULIP_HDR_DATA)
static tulip_softc_t *tulips[TULIP_MAX_DEVICES];
#endif

#if defined(TULIP_USE_SOFTINTR)
NETISR_SET(NETISR_DE, tulip_softintr);
#endif

#define	loudprintf			if (bootverbose) printf

#ifndef	tulip_if
#define	tulip_if	tulip_ac.ac_if
#endif
#ifndef tulip_unit
#define	tulip_unit	tulip_if.if_unit
#endif
#define	tulip_name	tulip_if.if_name
#ifndef tulip_enaddr
#define	tulip_enaddr	tulip_ac.ac_enaddr
#endif

#if !defined(TULIP_KVATOPHYS) && (!defined(TULIP_BUS_DMA) || defined(TULIP_BUS_DMA_NORX) || defined(TULIP_BUS_DMA_NOTX))
#if defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#define vtobus(va)	alpha_XXX_dmamap((vm_offset_t)va)
#else
#define vtobus(va)	vtophys(va)
#endif
#define	TULIP_KVATOPHYS(sc, va)		vtobus(va)
#endif

#if defined(TULIP_PERFSTATS)
#define	TULIP_PERFMERGE(sc, member) \
	do { (sc)->tulip_perfstats[TULIP_PERF_TOTAL].member \
	     += (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
	 (sc)->tulip_perfstats[TULIP_PERF_PREVIOUS].member \
	      = (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
	    (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member = 0; } while (0)
#define	TULIP_PERFSTART(name) const tulip_cycle_t perfstart_ ## name = TULIP_PERFREAD();
#define	TULIP_PERFEND(name)	do { \
	    (sc)->tulip_curperfstats.perf_ ## name ## _cycles += TULIP_PERFDIFF(perfstart_ ## name, TULIP_PERFREAD()); \
	    (sc)->tulip_curperfstats.perf_ ## name ++; \
	} while (0)
#if defined(__i386__)
typedef u_quad_t tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
    void)
{
    tulip_cycle_t x;
    __asm__ volatile (".byte 0x0f, 0x31" : "=A" (x));
    return x;
}
#define	TULIP_PERFDIFF(s, f)	((f) - (s))
#elif defined(__alpha__)
typedef unsigned long tulip_cycle_t;
static __inline__ tulip_cycle_t
TULIP_PERFREAD(
    void)
{
    tulip_cycle_t x;
    __asm__ volatile ("rpcc %0" : "=r" (x));
    return x;
}
#define	TULIP_PERFDIFF(s, f)	((unsigned int) ((f) - (s)))
#endif
#else
#define	TULIP_PERFSTART(name)	
#define	TULIP_PERFEND(name)	do { } while (0)
#define	TULIP_PERFMERGE(s,n)	do { } while (0)
#endif /* TULIP_PERFSTATS */

#define	TULIP_CRC32_POLY	0xEDB88320UL	/* CRC-32 Poly -- Little Endian */
#define	TULIP_MAX_TXSEG		30

#define	TULIP_ADDREQUAL(a1, a2) \
	(((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
	 && ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
	 && ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
#define	TULIP_ADDRBRDCST(a1) \
	(((u_int16_t *)a1)[0] == 0xFFFFU \
	 && ((u_int16_t *)a1)[1] == 0xFFFFU \
	 && ((u_int16_t *)a1)[2] == 0xFFFFU)

#endif /* !defined(_DEVAR_H) */
OpenPOWER on IntegriCloud