if_devar.h revision 148445
1/*	$NetBSD: if_devar.h,v 1.32 1999/04/01 14:55:25 tsubai Exp $	*/
2
3/* $FreeBSD: head/sys/dev/de/if_devar.h 148445 2005-07-27 13:51:01Z jhb $ */
4
5/*-
6 * Copyright (c) 1994-1997 Matt Thomas (matt@3am-software.com)
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. The name of the author may not be used to endorse or promote products
15 *    derived from this software without specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Id: if_devar.h,v 1.28 1997/07/03 16:55:07 thomas Exp
29 */
30
31#ifndef _DEVAR_H
32#define _DEVAR_H
33
34typedef bus_addr_t tulip_csrptr_t;
35
36#define	TULIP_PCI_CSRSIZE	8
37#define	TULIP_PCI_CSROFFSET	0
38
39#define TULIP_CSR_READ(sc, csr)			\
40	bus_space_read_4((sc)->tulip_csrs_bst,	\
41			 (sc)->tulip_csrs_bsh,	\
42			 (sc)->tulip_csrs.csr)
43#define TULIP_CSR_WRITE(sc, csr, val)			\
44	bus_space_write_4((sc)->tulip_csrs_bst,		\
45			  (sc)->tulip_csrs_bsh,		\
46			  (sc)->tulip_csrs.csr, val)
47
48#define TULIP_CSR_READBYTE(sc, csr)		\
49	bus_space_read_1((sc)->tulip_csrs_bst,	\
50			 (sc)->tulip_csrs_bsh,	\
51			 (sc)->tulip_csrs.csr)
52#define TULIP_CSR_WRITEBYTE(sc, csr, val)		\
53	bus_space_write_1((sc)->tulip_csrs_bst,		\
54			  (sc)->tulip_csrs_bsh,		\
55			  (sc)->tulip_csrs.csr, val)
56
57/*
58 * This structure contains "pointers" for the registers on
59 * the various 21x4x chips.  CSR0 through CSR8 are common
60 * to all chips.  After that, it gets messy...
61 */
62typedef struct {
63	tulip_csrptr_t	csr_busmode;	/* CSR0 */
64	tulip_csrptr_t	csr_txpoll;	/* CSR1 */
65	tulip_csrptr_t	csr_rxpoll;	/* CSR2 */
66	tulip_csrptr_t	csr_rxlist;	/* CSR3 */
67	tulip_csrptr_t	csr_txlist;	/* CSR4 */
68	tulip_csrptr_t	csr_status;	/* CSR5 */
69	tulip_csrptr_t	csr_command;	/* CSR6 */
70	tulip_csrptr_t	csr_intr;	/* CSR7 */
71	tulip_csrptr_t	csr_missed_frames;	/* CSR8 */
72	tulip_csrptr_t	csr_9;		/* CSR9 */
73	tulip_csrptr_t	csr_10;		/* CSR10 */
74	tulip_csrptr_t	csr_11;		/* CSR11 */
75	tulip_csrptr_t	csr_12;		/* CSR12 */
76	tulip_csrptr_t	csr_13;		/* CSR13 */
77	tulip_csrptr_t	csr_14;		/* CSR14 */
78	tulip_csrptr_t	csr_15;		/* CSR15 */
79} tulip_regfile_t;
80
81#define	csr_enetrom		csr_9	/* 21040 */
82#define	csr_reserved		csr_10	/* 21040 */
83#define	csr_full_duplex		csr_11	/* 21040 */
84#define	csr_bootrom		csr_10	/* 21041/21140A/?? */
85#define	csr_gp			csr_12	/* 21140* */
86#define	csr_watchdog		csr_15	/* 21140* */
87#define	csr_gp_timer		csr_11	/* 21041/21140* */
88#define	csr_srom_mii		csr_9	/* 21041/21140* */
89#define	csr_sia_status		csr_12	/* 2104x */
90#define csr_sia_connectivity	csr_13	/* 2104x */
91#define csr_sia_tx_rx		csr_14	/* 2104x */
92#define csr_sia_general		csr_15	/* 2104x */
93
94/*
95 * While 21x4x allows chaining of its descriptors, this driver
96 * doesn't take advantage of it.  We keep the descriptors in a
97 * traditional FIFO ring.
98 */
99typedef struct {
100	tulip_desc_t	*ri_first;	/* first entry in ring */
101	tulip_desc_t	*ri_last;	/* one after last entry */
102	tulip_desc_t	*ri_nextin;	/* next to processed by host */
103	tulip_desc_t	*ri_nextout;	/* next to processed by adapter */
104	int		ri_max;
105	int		ri_free;
106} tulip_ringinfo_t;
107
108/*
109 * The 21040 has a stupid restriction in that the receive
110 * buffers must be longword aligned.  But since Ethernet
111 * headers are not a multiple of longwords in size this forces
112 * the data to non-longword aligned.  Since IP requires the
113 * data to be longword aligned, we need to copy it after it has
114 * been DMA'ed in our memory.
115 *
116 * Since we have to copy it anyways, we might as well as allocate
117 * dedicated receive space for the input.  This allows to use a
118 * small receive buffer size and more ring entries to be able to
119 * better keep with a flood of tiny Ethernet packets.
120 *
121 * The receive space MUST ALWAYS be a multiple of the page size.
122 * And the number of receive descriptors multiplied by the size
123 * of the receive buffers must equal the receive space.  This
124 * is so that we can manipulate the page tables so that even if a
125 * packet wraps around the end of the receive space, we can
126 * treat it as virtually contiguous.
127 *
128 * The above used to be true (the stupid restriction is still true)
129 * but we gone to directly DMA'ing into MBUFs (unless it's on an
130 * architecture which can't handle unaligned accesses) because with
131 * 100Mb/s cards the copying is just too much of a hit.
132 */
133#if !defined(__i386__)
134#define	TULIP_COPY_RXDATA	1
135#endif
136
137#define	TULIP_DATA_PER_DESC	2032
138#define	TULIP_TXTIMER		4
139#define	TULIP_RXDESCS		48
140#define	TULIP_TXDESCS		128
141#define	TULIP_RXQ_TARGET	32
142#if TULIP_RXQ_TARGET >= TULIP_RXDESCS
143#error	TULIP_RXQ_TARGET must be less than TULIP_RXDESCS
144#endif
145#define	TULIP_RX_BUFLEN		((MCLBYTES < 2048 ? MCLBYTES : 2048) - 16)
146
147/*
148 * Forward reference to make C happy.
149 */
150typedef struct tulip_softc	tulip_softc_t;
151
152/*
153 * Enumeration of the various controllers supported.
154 */
155typedef enum {
156	TULIP_21040,
157	TULIP_21041,
158	TULIP_21140,
159	TULIP_21140A,
160	TULIP_21142,
161	TULIP_21143,
162	TULIP_CHIPID_UNKNOWN
163} tulip_chipid_t;
164
165/*
166 * Various physical media types supported.
167 * BNCAUI is BNC or AUI since on the 21040 you can't really tell
168 * which is in use.
169 */
170typedef enum {
171	TULIP_MEDIA_UNKNOWN,
172	TULIP_MEDIA_10BASET,
173	TULIP_MEDIA_10BASET_FD,
174	TULIP_MEDIA_BNC,
175	TULIP_MEDIA_AUI,
176	TULIP_MEDIA_EXTSIA,
177	TULIP_MEDIA_AUIBNC,
178	TULIP_MEDIA_100BASETX,
179	TULIP_MEDIA_100BASETX_FD,
180	TULIP_MEDIA_100BASET4,
181	TULIP_MEDIA_100BASEFX,
182	TULIP_MEDIA_100BASEFX_FD,
183	TULIP_MEDIA_MAX
184} tulip_media_t;
185
186#define	TULIP_BIT(b)		(1L << ((int)(b)))
187#define	TULIP_FDBIT(m)		(1L << ((int)TULIP_MEDIA_ ## m ## _FD))
188#define	TULIP_MBIT(m)		(1L << ((int)TULIP_MEDIA_ ## m ))
189#define	TULIP_IS_MEDIA_FD(m)	(TULIP_BIT(m) & \
190				 (TULIP_FDBIT(10BASET) | \
191				  TULIP_FDBIT(100BASETX) | \
192				  TULIP_FDBIT(100BASEFX)))
193#define	TULIP_CAN_MEDIA_FD(m)	(TULIP_BIT(m) & \
194				 (TULIP_MBIT(10BASET) | \
195				  TULIP_MBIT(100BASETX) | \
196				  TULIP_MBIT(100BASEFX)))
197#define	TULIP_FD_MEDIA_OF(m)	((tulip_media_t)((m) + 1))
198#define	TULIP_HD_MEDIA_OF(m)	((tulip_media_t)((m) - 1))
199#define	TULIP_IS_MEDIA_100MB(m)	((m) >= TULIP_MEDIA_100BASETX)
200#define	TULIP_IS_MEDIA_TP(m)	((TULIP_BIT(m) & \
201				  (TULIP_MBIT(BNC) | \
202				   TULIP_MBIT(AUI) | \
203				   TULIP_MBIT(AUIBNC) | \
204				   TULIP_MBIT(EXTSIA))) == 0)
205
206#define	TULIP_SROM_ATTR_MII		0x0100
207#define	TULIP_SROM_ATTR_NWAY		0x0200
208#define	TULIP_SROM_ATTR_AUTOSENSE	0x0400
209#define	TULIP_SROM_ATTR_POWERUP		0x0800
210#define	TULIP_SROM_ATTR_NOLINKPASS	0x1000
211
212typedef struct {
213	enum {
214		TULIP_MEDIAINFO_NONE,
215		TULIP_MEDIAINFO_SIA,
216		TULIP_MEDIAINFO_GPR,
217		TULIP_MEDIAINFO_MII,
218		TULIP_MEDIAINFO_RESET,
219		TULIP_MEDIAINFO_SYM
220	} mi_type;
221	union {
222		struct {
223			u_int16_t sia_connectivity;
224			u_int16_t sia_tx_rx;
225			u_int16_t sia_general;
226			u_int32_t sia_gp_control;	/* 21142/21143 */
227			u_int32_t sia_gp_data;		/* 21142/21143 */
228		} un_sia;
229		struct {
230			u_int32_t gpr_cmdmode;
231			u_int32_t gpr_gpcontrol;	/* 21142/21143 */
232			u_int32_t gpr_gpdata;
233			u_int8_t gpr_actmask;
234			u_int8_t gpr_actdata;
235			u_int gpr_default:1;
236		} un_gpr;
237		struct {
238			u_int32_t mii_mediamask;
239			u_int16_t mii_capabilities;
240			u_int16_t mii_advertisement;
241			u_int16_t mii_full_duplex;
242			u_int16_t mii_tx_threshold;
243			u_int16_t mii_interrupt;	/* 21142/21143 */
244			u_int8_t mii_phyaddr;
245			u_int8_t mii_gpr_length;
246			u_int8_t mii_gpr_offset;
247			u_int8_t mii_reset_length;
248			u_int8_t mii_reset_offset;
249			u_int32_t mii_phyid;
250		} un_mii;
251	} mi_un;
252} tulip_media_info_t;
253
254#define	mi_sia_connectivity	mi_un.un_sia.sia_connectivity
255#define	mi_sia_tx_rx		mi_un.un_sia.sia_tx_rx
256#define mi_sia_general		mi_un.un_sia.sia_general
257#define	mi_sia_gp_control	mi_un.un_sia.sia_gp_control
258#define	mi_sia_gp_data		mi_un.un_sia.sia_gp_data
259
260#define	mi_gpcontrol		mi_un.un_gpr.gpr_gpcontrol
261#define	mi_gpdata		mi_un.un_gpr.gpr_gpdata
262#define	mi_actmask		mi_un.un_gpr.gpr_actmask
263#define	mi_actdata		mi_un.un_gpr.gpr_actdata
264#define	mi_default		mi_un.un_gpr.gpr_default
265#define	mi_cmdmode		mi_un.un_gpr.gpr_cmdmode
266
267#define	mi_phyaddr		mi_un.un_mii.mii_phyaddr
268#define	mi_gpr_length		mi_un.un_mii.mii_gpr_length
269#define	mi_gpr_offset		mi_un.un_mii.mii_gpr_offset
270#define	mi_reset_length		mi_un.un_mii.mii_reset_length
271#define	mi_reset_offset		mi_un.un_mii.mii_reset_offset
272#define	mi_capabilities		mi_un.un_mii.mii_capabilities
273#define	mi_advertisement	mi_un.un_mii.mii_advertisement
274#define	mi_full_duplex		mi_un.un_mii.mii_full_duplex
275#define	mi_tx_threshold		mi_un.un_mii.mii_tx_threshold
276#define	mi_mediamask		mi_un.un_mii.mii_mediamask
277#define	mi_mii_interrupt	mi_un.un_mii.mii_interrupt
278#define	mi_phyid		mi_un.un_mii.mii_phyid
279
280#define	TULIP_MEDIAINFO_SIA_INIT(sc, mi, chipid, media) do {		\
281	(mi)->mi_type = TULIP_MEDIAINFO_SIA;				\
282	sc->tulip_mediums[TULIP_MEDIA_ ## media] = (mi);		\
283	(mi)->mi_sia_connectivity = TULIP_ ## chipid ## _SIACONN_ ## media; \
284	(mi)->mi_sia_tx_rx = TULIP_ ## chipid ## _SIATXRX_ ## media;	\
285	(mi)->mi_sia_general = TULIP_ ## chipid ## _SIAGEN_ ## media;	\
286} while (0)
287
288#define TULIP_MEDIAINFO_ADD_CAPABILITY(sc, mi, media) do {		\
289	if ((sc)->tulip_mediums[TULIP_MEDIA_ ## media] == NULL		\
290	    && ((mi)->mi_capabilities & PHYSTS_ ## media)) {		\
291		(sc)->tulip_mediums[TULIP_MEDIA_ ## media] = (mi);	\
292		(mi)->mi_mediamask |= TULIP_BIT(TULIP_MEDIA_ ## media);	\
293	}								\
294} while (0)
295
296#define	TULIP_MII_NOPHY		32
297/*
298 * Some boards need to treated specially.  The following enumeration
299 * identifies the cards with quirks (or those we just want to single
300 * out for special merit or scorn).
301 */
302typedef enum {
303	TULIP_21040_GENERIC,	/* Generic 21040 (works with most any board) */
304	TULIP_21140_ISV,	/* Digital Semicondutor 21140 ISV SROM Format */
305	TULIP_21142_ISV,	/* Digital Semicondutor 21142 ISV SROM Format */
306	TULIP_21143_ISV,	/* Digital Semicondutor 21143 ISV SROM Format */
307	TULIP_21140_DEC_EB,	/* Digital Semicondutor 21140 Eval. Board */
308	TULIP_21140_MII,	/* 21140[A] with MII */
309	TULIP_21140_DEC_DE500,	/* Digital DE500-?? 10/100 */
310	TULIP_21140_SMC_9332,	/* SMC 9332 */
311	TULIP_21140_COGENT_EM100,	/* Cogent EM100 100 only */
312	TULIP_21140_ZNYX_ZX34X,	/* ZNYX ZX342 10/100 */
313	TULIP_21140_ASANTE,	/* AsanteFast 10/100 */
314	TULIP_21140_EN1207,	/* Accton EN2107 10/100 BNC */
315	TULIP_21041_GENERIC	/* Generic 21041 card */
316} tulip_board_t;
317
318typedef enum {
319	TULIP_MEDIAPOLL_TIMER,		/* 100ms timer fired */
320	TULIP_MEDIAPOLL_FASTTIMER,	/* <100ms timer fired */
321	TULIP_MEDIAPOLL_LINKFAIL,	/* called from interrupt routine */
322	TULIP_MEDIAPOLL_LINKPASS,	/* called from interrupt routine */
323	TULIP_MEDIAPOLL_START,		/* start a media probe (from reset) */
324	TULIP_MEDIAPOLL_TXPROBE_OK,	/* txprobe succeeded */
325	TULIP_MEDIAPOLL_TXPROBE_FAILED,	/* txprobe failed */
326	TULIP_MEDIAPOLL_MAX
327} tulip_mediapoll_event_t;
328
329typedef enum {
330	TULIP_LINK_DOWN,	/* Link is down */
331	TULIP_LINK_UP,		/* link is ok */
332	TULIP_LINK_UNKNOWN	/* we can't tell either way */
333} tulip_link_status_t;
334
335/*
336 * This data structure is used to abstract out the quirks.
337 * media_probe  = tries to determine the media type.
338 * media_select = enables the current media (or autosenses)
339 * media_poll	= autosenses media
340 * media_preset = 21140, etal requires bit to set before the
341 *		  the software reset; hence pre-set.  Should be
342 *		  pre-reset but that's ugly.
343 */
344typedef struct {
345	tulip_board_t bd_type;
346	void (*bd_media_probe)(tulip_softc_t * const sc);
347	void (*bd_media_select)(tulip_softc_t * const sc);
348	void (*bd_media_poll)(tulip_softc_t * const sc,
349    tulip_mediapoll_event_t event);
350	void (*bd_media_preset) (tulip_softc_t * const sc);
351} tulip_boardsw_t;
352
353/*
354 * The next few declarations are for MII/PHY based boards.
355 *
356 *    The first enumeration identifies a superset of various datums
357 * that can be obtained from various PHY chips.  Not all PHYs will
358 * support all datums.
359 *    The modedata structure indicates what register contains
360 * a datum, what mask is applied the register contents, and what the
361 * result should be.
362 *    The attr structure records information about a supported PHY.
363 *    The phy structure records information about a PHY instance.
364 */
365typedef enum {
366	PHY_MODE_10T,
367	PHY_MODE_100TX,
368	PHY_MODE_100T4,
369	PHY_MODE_FULLDUPLEX,
370	PHY_MODE_MAX
371} tulip_phy_mode_t;
372
373typedef struct {
374	u_int16_t	pm_regno;
375	u_int16_t	pm_mask;
376	u_int16_t	pm_value;
377} tulip_phy_modedata_t;
378
379typedef struct {
380	u_int32_t	attr_id;
381	u_int16_t	attr_flags;
382	tulip_phy_modedata_t	attr_modes[PHY_MODE_MAX];
383#ifdef TULIP_DEBUG
384	const char	*attr_name;
385#endif
386} tulip_phy_attr_t;
387
388/* Definitions for tulip_phy_attr_t.attr_flags */
389#define	PHY_NEED_HARD_RESET	0x0001
390#define	PHY_DUAL_CYCLE_TA	0x0002
391
392/*
393 * Various probe states used when trying to autosense the media.
394 */
395typedef enum {
396	TULIP_PROBE_INACTIVE,
397	TULIP_PROBE_PHYRESET,
398	TULIP_PROBE_PHYAUTONEG,
399	TULIP_PROBE_GPRTEST,
400	TULIP_PROBE_MEDIATEST,
401	TULIP_PROBE_FAILED
402} tulip_probe_state_t;
403
404typedef struct {
405	/*
406	 * Transmit Statistics
407	 */
408	u_int32_t	dot3StatsSingleCollisionFrames;
409	u_int32_t	dot3StatsMultipleCollisionFrames;
410	u_int32_t	dot3StatsSQETestErrors;
411	u_int32_t	dot3StatsDeferredTransmissions;
412	u_int32_t	dot3StatsLateCollisions;
413	u_int32_t	dot3StatsExcessiveCollisions;
414	u_int32_t	dot3StatsCarrierSenseErrors;
415	u_int32_t	dot3StatsInternalMacTransmitErrors;
416	/* not in rfc1650! */
417	u_int32_t	dot3StatsInternalTransmitUnderflows;
418	/* not in rfc1650! */
419	u_int32_t	dot3StatsInternalTransmitBabbles;
420	/*
421	 * Receive Statistics
422	 */
423	u_int32_t	dot3StatsMissedFrames;	/* not in rfc1650! */
424	u_int32_t	dot3StatsAlignmentErrors;
425	u_int32_t	dot3StatsFCSErrors;
426	u_int32_t	dot3StatsFrameTooLongs;
427	u_int32_t	dot3StatsInternalMacReceiveErrors;
428} tulip_dot3_stats_t;
429
430/*
431 * Probe information.
432 */
433struct tulip_probe_info {
434	u_int8_t	probe_count;		/* count of probe operations */
435	int32_t		probe_timeout;		/* time (ms) of probe timeout */
436	tulip_probe_state_t	probe_state;	/* current media probe state */
437	tulip_media_t	probe_media;		/* current media being probed */
438	u_int32_t	probe_mediamask;	/* medias checked */
439	u_int32_t	probe_passes;		/* times autosense failed */
440	u_int32_t	probe_txprobes;		/* txprobes attempted */
441};
442
443/*
444 * Debugging/Statistical information.
445 */
446struct tulip_dbg_info {
447	tulip_media_t	dbg_last_media;
448	u_int32_t	dbg_intrs;
449	u_int32_t	dbg_media_probes;
450	u_int32_t	dbg_txprobe_nocarr;
451	u_int32_t	dbg_txprobe_exccoll;
452	u_int32_t	dbg_link_downed;
453	u_int32_t	dbg_link_suspected;
454	u_int32_t	dbg_link_intrs;
455	u_int32_t	dbg_link_pollintrs;
456	u_int32_t	dbg_link_failures;
457	u_int32_t	dbg_nway_starts;
458	u_int32_t	dbg_nway_failures;
459	u_int16_t	dbg_phyregs[32][4];
460	u_int32_t	dbg_rxlowbufs;
461	u_int32_t	dbg_rxintrs;
462	u_int32_t	dbg_last_rxintrs;
463	u_int32_t	dbg_high_rxintrs_hz;
464	u_int32_t	dbg_no_txmaps;
465	u_int32_t	dbg_txput_finishes[8];
466	u_int32_t	dbg_txprobes_ok[TULIP_MEDIA_MAX];
467	u_int32_t	dbg_txprobes_failed[TULIP_MEDIA_MAX];
468	u_int32_t	dbg_events[TULIP_MEDIAPOLL_MAX];
469	u_int32_t	dbg_rxpktsperintr[TULIP_RXDESCS];
470};
471
472/*
473 * Performance statistics.
474 */
475struct tulip_perfstat {
476	u_quad_t	perf_intr_cycles;
477	u_quad_t	perf_ifstart_cycles;
478	u_quad_t	perf_ifstart_one_cycles;
479	u_quad_t	perf_ifioctl_cycles;
480	u_quad_t	perf_ifwatchdog_cycles;
481	u_quad_t	perf_timeout_cycles;
482	u_quad_t	perf_txput_cycles;
483	u_quad_t	perf_txintr_cycles;
484	u_quad_t	perf_rxintr_cycles;
485	u_quad_t	perf_rxget_cycles;
486	unsigned int	perf_intr;
487	unsigned int	perf_ifstart;
488	unsigned int	perf_ifstart_one;
489	unsigned int	perf_ifioctl;
490	unsigned int	perf_ifwatchdog;
491	unsigned int	perf_timeout;
492	unsigned int	perf_txput;
493	unsigned int	perf_txintr;
494	unsigned int	perf_rxintr;
495	unsigned int	perf_rxget;
496};
497#define	TULIP_PERF_CURRENT	0
498#define	TULIP_PERF_PREVIOUS	1
499#define	TULIP_PERF_TOTAL	2
500#define	TULIP_PERF_MAX		3
501
502/*
503 * Per-driver-instance state.
504 */
505struct tulip_softc {
506	struct ifmedia		tulip_ifmedia;
507	int			tulip_unit;
508#if defined(TULIP_BUS_DMA)
509	bus_dma_tag_t		tulip_dmatag;
510#if !defined(TULIP_BUS_DMA_NOTX)
511	bus_dmamap_t		tulip_setupmap;
512	bus_dmamap_t		tulip_txdescmap;
513	bus_dmamap_t		tulip_txmaps[TULIP_TXDESCS];
514	unsigned int		tulip_txmaps_free;
515#endif
516#if !defined(TULIP_BUS_DMA_NORX)
517	bus_dmamap_t		tulip_rxdescmap;
518	bus_dmamap_t		tulip_rxmaps[TULIP_RXDESCS];
519	unsigned int		tulip_rxmaps_free;
520#endif
521#endif
522	struct ifnet		*tulip_ifp;
523	u_char			tulip_enaddr[6];
524	bus_space_tag_t		tulip_csrs_bst;
525	bus_space_handle_t	tulip_csrs_bsh;
526	tulip_regfile_t		tulip_csrs;
527
528	u_int32_t		tulip_flags;
529	u_int32_t		tulip_features;
530	u_int32_t		tulip_intrmask;
531	u_int32_t		tulip_cmdmode;
532	u_int32_t		tulip_last_system_error:3;
533	u_int32_t		tulip_txtimer:2;	/* transmission timer */
534	u_int32_t		tulip_system_errors;
535	u_int32_t		tulip_statusbits;	/* status bits from
536							 * CSR5 that may need
537							 * to be printed
538							 */
539	tulip_media_info_t	*tulip_mediums[TULIP_MEDIA_MAX];
540	tulip_media_t		tulip_media;		/* current media type */
541	u_int32_t		tulip_abilities;	/* remote system's
542							 * abilities (as
543							 * defined in IEEE
544							 * 802.3u)
545							 */
546	u_int8_t		tulip_revinfo;		/* chip revision */
547	u_int8_t		tulip_phyaddr;		/* current phy */
548	u_int8_t		tulip_gpinit;		/* active pins on
549							 * 21140
550							 */
551	u_int8_t		tulip_gpdata;	/* default gpdata for 21140 */
552	struct tulip_probe_info	tulip_probe;
553	tulip_chipid_t		tulip_chipid;	/* type of chip we are using */
554	const tulip_boardsw_t	*tulip_boardsw;	/* board/chip characteristics */
555	tulip_softc_t		*tulip_slaves;	/* slaved devices (ZX3xx) */
556#if defined(TULIP_DEBUG)
557	struct tulip_dbg_info	tulip_dbg;
558#endif
559#if defined(TULIP_PERFSTATS)
560	struct tulip_perfstat	tulip_perfstats[TULIP_PERF_MAX];
561#endif
562	struct ifqueue		tulip_txq;
563	struct ifqueue		tulip_rxq;
564	tulip_dot3_stats_t	tulip_dot3stats;
565	tulip_ringinfo_t	tulip_rxinfo;
566	tulip_ringinfo_t	tulip_txinfo;
567	tulip_media_info_t	tulip_mediainfo[10];
568	/*
569	 * The setup buffers for sending the setup frame to the chip. one is
570	 * the one being sent while the other is the one being filled.
571	 */
572	u_int32_t		tulip_setupbuf[192 / sizeof(u_int32_t)];
573	u_int32_t		tulip_setupdata[192 / sizeof(u_int32_t)];
574	char			tulip_boardid[24];
575	u_int8_t		tulip_rombuf[128];	/* must be aligned */
576
577	/* needed for multiport boards */
578	u_int8_t		tulip_pci_busno;
579	u_int8_t		tulip_pci_devno;
580
581	u_int8_t		tulip_connidx;
582	tulip_srom_connection_t	tulip_conntype;
583	tulip_desc_t		*tulip_rxdescs;
584	tulip_desc_t		*tulip_txdescs;
585	struct callout		tulip_callout;
586	struct mtx		tulip_mutex;
587};
588
589#define	tulip_curperfstats	tulip_perfstats[TULIP_PERF_CURRENT]
590#define	tulip_probe_count	tulip_probe.probe_count
591#define	tulip_probe_timeout	tulip_probe.probe_timeout
592#define	tulip_probe_state	tulip_probe.probe_state
593#define	tulip_probe_media	tulip_probe.probe_media
594#define	tulip_probe_mediamask	tulip_probe.probe_mediamask
595#define	tulip_probe_passes	tulip_probe.probe_passes
596
597/* Definitions for tulip_flags. */
598#define	TULIP_WANTSETUP		0x00000001
599#define	TULIP_WANTHASHPERFECT	0x00000002
600#define	TULIP_WANTHASHONLY	0x00000004
601#define	TULIP_DOINGSETUP	0x00000008
602#define	TULIP_PRINTMEDIA	0x00000010
603#define	TULIP_TXPROBE_ACTIVE	0x00000020
604#define	TULIP_ALLMULTI		0x00000040
605#define	TULIP_WANTRXACT		0x00000080
606#define	TULIP_RXACT		0x00000100
607#define	TULIP_INRESET		0x00000200
608#define	TULIP_NEEDRESET		0x00000400
609#define	TULIP_SQETEST		0x00000800
610#define	TULIP_xxxxxx0		0x00001000
611#define	TULIP_xxxxxx1		0x00002000
612#define	TULIP_WANTTXSTART	0x00004000
613#define	TULIP_NEWTXTHRESH	0x00008000
614#define	TULIP_NOAUTOSENSE	0x00010000
615#define	TULIP_PRINTLINKUP	0x00020000
616#define	TULIP_LINKUP		0x00040000
617#define	TULIP_RXBUFSLOW		0x00080000
618#define	TULIP_NOMESSAGES	0x00100000
619#define	TULIP_SYSTEMERROR	0x00200000
620#define	TULIP_TIMEOUTPENDING	0x00400000
621#define	TULIP_xxxxxx2		0x00800000
622#define	TULIP_TRYNWAY		0x01000000
623#define	TULIP_DIDNWAY		0x02000000
624#define	TULIP_RXIGNORE		0x04000000
625#define	TULIP_PROBE1STPASS	0x08000000
626#define	TULIP_DEVICEPROBE	0x10000000
627#define	TULIP_PROMISC		0x20000000
628#define	TULIP_HASHONLY		0x40000000
629#define	TULIP_xxxxxx3		0x80000000
630
631/* Definitions for tulip_features. */
632#define	TULIP_HAVE_GPR		0x00000001	/* have gp register (140[A]) */
633#define	TULIP_HAVE_RXBADOVRFLW	0x00000002	/* RX corrupts on overflow */
634#define	TULIP_HAVE_POWERMGMT	0x00000004	/* Snooze/sleep modes */
635#define	TULIP_HAVE_MII		0x00000008	/* Some medium on MII */
636#define	TULIP_HAVE_SIANWAY	0x00000010	/* SIA does NWAY */
637#define	TULIP_HAVE_DUALSENSE	0x00000020	/* SIA senses both AUI & TP */
638#define	TULIP_HAVE_SIAGP	0x00000040	/* SIA has a GP port */
639#define	TULIP_HAVE_BROKEN_HASH	0x00000080	/* Broken Multicast Hash */
640#define	TULIP_HAVE_ISVSROM	0x00000100	/* uses ISV SROM Format */
641#define	TULIP_HAVE_BASEROM	0x00000200	/* Board ROM can be cloned */
642#define	TULIP_HAVE_SLAVEDROM	0x00000400	/* Board ROM cloned */
643#define	TULIP_HAVE_SLAVEDINTR	0x00000800	/* Board slaved interrupt */
644#define	TULIP_HAVE_SHAREDINTR	0x00001000	/* Board shares interrupts */
645#define	TULIP_HAVE_OKROM	0x00002000	/* ROM was recognized */
646#define	TULIP_HAVE_NOMEDIA	0x00004000	/* did not detect any media */
647#define	TULIP_HAVE_STOREFWD	0x00008000	/* have CMD_STOREFWD */
648#define	TULIP_HAVE_SIA100	0x00010000	/* has LS100 in SIA status */
649#define	TULIP_HAVE_OKSROM	0x00020000	/* SROM CRC is OK */
650
651#define	TULIP_DO_AUTOSENSE(sc)	\
652	(IFM_SUBTYPE((sc)->tulip_ifmedia.ifm_media) == IFM_AUTO)
653
654#if defined(TULIP_HDR_DATA)
655static const char *const tulip_chipdescs[] = {
656	"21040 [10Mb/s]",
657	"21041 [10Mb/s]",
658	"21140 [10-100Mb/s]",
659	"21140A [10-100Mb/s]",
660	"21142 [10-100Mb/s]",
661	"21143 [10-100Mb/s]",
662};
663
664static const char *const tulip_mediums[] = {
665	"unknown",		/* TULIP_MEDIA_UNKNOWN */
666	"10baseT",		/* TULIP_MEDIA_10BASET */
667	"Full Duplex 10baseT",	/* TULIP_MEDIA_10BASET_FD */
668	"BNC",			/* TULIP_MEDIA_BNC */
669	"AUI",			/* TULIP_MEDIA_AUI */
670	"External SIA",		/* TULIP_MEDIA_EXTSIA */
671	"AUI/BNC",		/* TULIP_MEDIA_AUIBNC */
672	"100baseTX",		/* TULIP_MEDIA_100BASET */
673	"Full Duplex 100baseTX",/* TULIP_MEDIA_100BASET_FD */
674	"100baseT4",		/* TULIP_MEDIA_100BASET4 */
675	"100baseFX",		/* TULIP_MEDIA_100BASEFX */
676	"Full Duplex 100baseFX",/* TULIP_MEDIA_100BASEFX_FD */
677};
678
679static const int tulip_media_to_ifmedia[] = {
680	IFM_ETHER | IFM_NONE,		/* TULIP_MEDIA_UNKNOWN */
681	IFM_ETHER | IFM_10_T,		/* TULIP_MEDIA_10BASET */
682	IFM_ETHER | IFM_10_T | IFM_FDX,	/* TULIP_MEDIA_10BASET_FD */
683	IFM_ETHER | IFM_10_2,		/* TULIP_MEDIA_BNC */
684	IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUI */
685	IFM_ETHER | IFM_MANUAL,		/* TULIP_MEDIA_EXTSIA */
686	IFM_ETHER | IFM_10_5,		/* TULIP_MEDIA_AUIBNC */
687	IFM_ETHER | IFM_100_TX,		/* TULIP_MEDIA_100BASET */
688	IFM_ETHER | IFM_100_TX | IFM_FDX,	/* TULIP_MEDIA_100BASET_FD */
689	IFM_ETHER | IFM_100_T4,		/* TULIP_MEDIA_100BASET4 */
690	IFM_ETHER | IFM_100_FX,		/* TULIP_MEDIA_100BASEFX */
691	IFM_ETHER | IFM_100_FX | IFM_FDX,	/* TULIP_MEDIA_100BASEFX_FD */
692};
693
694static const char *const tulip_system_errors[] = {
695	"parity error",
696	"master abort",
697	"target abort",
698	"reserved #3",
699	"reserved #4",
700	"reserved #5",
701	"reserved #6",
702	"reserved #7",
703};
704
705static const char *const tulip_status_bits[] = {
706	NULL,
707	"transmit process stopped",
708	NULL,
709	"transmit jabber timeout",
710
711	NULL,
712	"transmit underflow",
713	NULL,
714	"receive underflow",
715
716	"receive process stopped",
717	"receive watchdog timeout",
718	NULL,
719	NULL,
720
721	"link failure",
722	NULL,
723	NULL,
724};
725
726static const struct {
727	tulip_srom_connection_t sc_type;
728	tulip_media_t sc_media;
729	u_int32_t sc_attrs;
730} tulip_srom_conninfo[] = {
731	{
732		TULIP_SROM_CONNTYPE_10BASET, TULIP_MEDIA_10BASET
733	},
734	{
735		TULIP_SROM_CONNTYPE_BNC, TULIP_MEDIA_BNC
736	},
737	{
738		TULIP_SROM_CONNTYPE_AUI, TULIP_MEDIA_AUI
739	},
740	{
741		TULIP_SROM_CONNTYPE_100BASETX, TULIP_MEDIA_100BASETX
742	},
743	{
744		TULIP_SROM_CONNTYPE_100BASET4, TULIP_MEDIA_100BASET4
745	},
746	{
747		TULIP_SROM_CONNTYPE_100BASEFX, TULIP_MEDIA_100BASEFX
748	},
749	{
750		TULIP_SROM_CONNTYPE_MII_10BASET, TULIP_MEDIA_10BASET,
751		TULIP_SROM_ATTR_MII
752	},
753	{
754		TULIP_SROM_CONNTYPE_MII_100BASETX, TULIP_MEDIA_100BASETX,
755		TULIP_SROM_ATTR_MII
756	},
757	{
758		TULIP_SROM_CONNTYPE_MII_100BASET4, TULIP_MEDIA_100BASET4,
759		TULIP_SROM_ATTR_MII
760	},
761	{
762		TULIP_SROM_CONNTYPE_MII_100BASEFX, TULIP_MEDIA_100BASEFX,
763		TULIP_SROM_ATTR_MII
764	},
765	{
766		TULIP_SROM_CONNTYPE_10BASET_NWAY, TULIP_MEDIA_10BASET,
767		TULIP_SROM_ATTR_NWAY
768	},
769	{
770		TULIP_SROM_CONNTYPE_10BASET_FD, TULIP_MEDIA_10BASET_FD
771	},
772	{
773		TULIP_SROM_CONNTYPE_MII_10BASET_FD, TULIP_MEDIA_10BASET_FD,
774		TULIP_SROM_ATTR_MII
775	},
776	{
777		TULIP_SROM_CONNTYPE_100BASETX_FD, TULIP_MEDIA_100BASETX_FD
778	},
779	{
780		TULIP_SROM_CONNTYPE_MII_100BASETX_FD, TULIP_MEDIA_100BASETX_FD,
781		TULIP_SROM_ATTR_MII
782	},
783	{
784		TULIP_SROM_CONNTYPE_10BASET_NOLINKPASS, TULIP_MEDIA_10BASET,
785		TULIP_SROM_ATTR_NOLINKPASS
786	},
787	{
788		TULIP_SROM_CONNTYPE_AUTOSENSE, TULIP_MEDIA_UNKNOWN,
789		TULIP_SROM_ATTR_AUTOSENSE
790	},
791	{
792		TULIP_SROM_CONNTYPE_AUTOSENSE_POWERUP, TULIP_MEDIA_UNKNOWN,
793		TULIP_SROM_ATTR_AUTOSENSE | TULIP_SROM_ATTR_POWERUP
794	},
795	{
796		TULIP_SROM_CONNTYPE_AUTOSENSE_NWAY, TULIP_MEDIA_UNKNOWN,
797		TULIP_SROM_ATTR_AUTOSENSE | TULIP_SROM_ATTR_NWAY
798	},
799	{
800		TULIP_SROM_CONNTYPE_NOT_USED, TULIP_MEDIA_UNKNOWN
801	}
802};
803#define	TULIP_SROM_LASTCONNIDX	\
804		(sizeof(tulip_srom_conninfo)/sizeof(tulip_srom_conninfo[0]) - 1)
805
806static const struct {
807	tulip_media_t sm_type;
808	tulip_srom_media_t sm_srom_type;
809} tulip_srom_mediums[] = {
810	{
811		TULIP_MEDIA_100BASEFX_FD, TULIP_SROM_MEDIA_100BASEFX_FD
812	},
813	{
814		TULIP_MEDIA_100BASEFX, TULIP_SROM_MEDIA_100BASEFX
815	},
816	{
817		TULIP_MEDIA_100BASET4, TULIP_SROM_MEDIA_100BASET4
818	},
819	{
820		TULIP_MEDIA_100BASETX_FD, TULIP_SROM_MEDIA_100BASETX_FD
821	},
822	{
823		TULIP_MEDIA_100BASETX, TULIP_SROM_MEDIA_100BASETX
824	},
825	{
826		TULIP_MEDIA_10BASET_FD, TULIP_SROM_MEDIA_10BASET_FD
827	},
828	{
829		TULIP_MEDIA_AUI, TULIP_SROM_MEDIA_AUI
830	},
831	{
832		TULIP_MEDIA_BNC, TULIP_SROM_MEDIA_BNC
833	},
834	{
835		TULIP_MEDIA_10BASET, TULIP_SROM_MEDIA_10BASET
836	},
837	{
838		TULIP_MEDIA_UNKNOWN
839	}
840};
841
842#endif				/* TULIP_HDR_DATA */
843
844/*
845 * This driver supports a maximum of 32 tulip boards.
846 * This should be enough for the forseeable future.
847 */
848#define	TULIP_MAX_DEVICES	32
849
850#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NORX)
851#define TULIP_RXDESC_PRESYNC(sc, di, s)	\
852	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_rxdescmap, \
853		   (caddr_t) di - (caddr_t) (sc)->tulip_rxdescs, \
854		   (s), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
855#define TULIP_RXDESC_POSTSYNC(sc, di, s)	\
856	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_rxdescmap, \
857		   (caddr_t) di - (caddr_t) (sc)->tulip_rxdescs, \
858		   (s), BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
859#define	TULIP_RXMAP_PRESYNC(sc, map) \
860	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
861			BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
862#define	TULIP_RXMAP_POSTSYNC(sc, map) \
863	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
864			BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
865#define	TULIP_RXMAP_CREATE(sc, mapp) \
866	bus_dmamap_create((sc)->tulip_dmatag, TULIP_RX_BUFLEN, 2, \
867			  TULIP_DATA_PER_DESC, 0, \
868			  BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW, (mapp))
869#else
870#ifdef __alpha__
871#define TULIP_RXDESC_PRESYNC(sc, di, s)		alpha_mb()
872#define TULIP_RXDESC_POSTSYNC(sc, di, s)	alpha_mb()
873#define TULIP_RXMAP_PRESYNC(sc, map)		alpha_mb()
874#define TULIP_RXMAP_POSTSYNC(sc, map)		alpha_mb()
875#else
876#define TULIP_RXDESC_PRESYNC(sc, di, s)		do { } while (0)
877#define TULIP_RXDESC_POSTSYNC(sc, di, s)	do { } while (0)
878#define TULIP_RXMAP_PRESYNC(sc, map)		do { } while (0)
879#define TULIP_RXMAP_POSTSYNC(sc, map)		do { } while (0)
880#endif
881#define TULIP_RXMAP_CREATE(sc, mapp)		do { } while (0)
882#endif
883
884#if defined(TULIP_BUS_DMA) && !defined(TULIP_BUS_DMA_NOTX)
885#define TULIP_TXDESC_PRESYNC(sc, di, s)	\
886	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_txdescmap, \
887			(caddr_t) di - (caddr_t) (sc)->tulip_txdescs, \
888			(s), BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
889#define TULIP_TXDESC_POSTSYNC(sc, di, s)	\
890	bus_dmamap_sync((sc)->tulip_dmatag, (sc)->tulip_txdescmap, \
891			(caddr_t) di - (caddr_t) (sc)->tulip_txdescs, \
892			(s), BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
893#define	TULIP_TXMAP_PRESYNC(sc, map) \
894	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
895			BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)
896#define	TULIP_TXMAP_POSTSYNC(sc, map) \
897	bus_dmamap_sync((sc)->tulip_dmatag, (map), 0, (map)->dm_mapsize, \
898			BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)
899#define	TULIP_TXMAP_CREATE(sc, mapp) \
900	bus_dmamap_create((sc)->tulip_dmatag, TULIP_DATA_PER_DESC, \
901			  TULIP_MAX_TXSEG, TULIP_DATA_PER_DESC, \
902			  0, BUS_DMA_NOWAIT, (mapp))
903#else
904#ifdef __alpha__
905#define TULIP_TXDESC_PRESYNC(sc, di, s)		alpha_mb()
906#define TULIP_TXDESC_POSTSYNC(sc, di, s)	alpha_mb()
907#define TULIP_TXMAP_PRESYNC(sc, map)		alpha_mb()
908#define TULIP_TXMAP_POSTSYNC(sc, map)		alpha_mb()
909#else
910#define TULIP_TXDESC_PRESYNC(sc, di, s)		do { } while (0)
911#define TULIP_TXDESC_POSTSYNC(sc, di, s)	do { } while (0)
912#define TULIP_TXMAP_PRESYNC(sc, map)		do { } while (0)
913#define TULIP_TXMAP_POSTSYNC(sc, map)		do { } while (0)
914#endif
915#define TULIP_TXMAP_CREATE(sc, mapp)		do { } while (0)
916#endif
917
918#ifdef notyet
919#define	SIOCGADDRROM		_IOW('i', 240, struct ifreq)	/* get 128 bytes of ROM */
920#define	SIOCGCHIPID		_IOWR('i', 241, struct ifreq)	/* get chipid */
921#endif
922
923#if defined(TULIP_HDR_DATA)
924static tulip_softc_t	*tulips[TULIP_MAX_DEVICES];
925#endif
926
927#define	loudprintf			if (bootverbose) printf
928
929#if !defined(TULIP_KVATOPHYS) && (!defined(TULIP_BUS_DMA) || defined(TULIP_BUS_DMA_NORX) || defined(TULIP_BUS_DMA_NOTX))
930#if defined(__alpha__)
931/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
932#define vtobus(va)			alpha_XXX_dmamap((vm_offset_t)va)
933#else
934#define vtobus(va)			vtophys(va)
935#endif
936#define	TULIP_KVATOPHYS(sc, va)		vtobus(va)
937#endif
938
939#if defined(TULIP_PERFSTATS)
940#define	TULIP_PERFMERGE(sc, member) \
941	do { (sc)->tulip_perfstats[TULIP_PERF_TOTAL].member \
942	     += (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
943	 (sc)->tulip_perfstats[TULIP_PERF_PREVIOUS].member \
944	      = (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member; \
945	    (sc)->tulip_perfstats[TULIP_PERF_CURRENT].member = 0; } while (0)
946#define	TULIP_PERFSTART(name) const tulip_cycle_t perfstart_ ## name = TULIP_PERFREAD();
947#define	TULIP_PERFEND(name)	do { \
948	    (sc)->tulip_curperfstats.perf_ ## name ## _cycles += TULIP_PERFDIFF(perfstart_ ## name, TULIP_PERFREAD()); \
949	    (sc)->tulip_curperfstats.perf_ ## name ++; \
950	} while (0)
951
952typedef u_long tulip_cycle_t;
953
954static __inline tulip_cycle_t
955TULIP_PERFREAD(void)
956{
957	return (get_cyclecount());
958}
959
960#define	TULIP_PERFDIFF(s, f)	((f) - (s))
961#else
962#define	TULIP_PERFSTART(name)
963#define	TULIP_PERFEND(name)	do { } while (0)
964#define	TULIP_PERFMERGE(s,n)	do { } while (0)
965#endif	/* TULIP_PERFSTATS */
966
967#define	TULIP_CRC32_POLY	0xEDB88320UL	/* CRC-32 Poly -- Little
968						 * Endian */
969#define	TULIP_MAX_TXSEG		30
970
971#define	TULIP_ADDREQUAL(a1, a2) \
972	(((u_int16_t *)a1)[0] == ((u_int16_t *)a2)[0] \
973	 && ((u_int16_t *)a1)[1] == ((u_int16_t *)a2)[1] \
974	 && ((u_int16_t *)a1)[2] == ((u_int16_t *)a2)[2])
975#define	TULIP_ADDRBRDCST(a1) \
976	(((u_int16_t *)a1)[0] == 0xFFFFU \
977	 && ((u_int16_t *)a1)[1] == 0xFFFFU \
978	 && ((u_int16_t *)a1)[2] == 0xFFFFU)
979
980#define	TULIP_MUTEX(sc)		(&(sc)->tulip_mutex)
981#define	TULIP_LOCK(sc)		mtx_lock(TULIP_MUTEX(sc))
982#define	TULIP_UNLOCK(sc)	mtx_unlock(TULIP_MUTEX(sc))
983#define	TULIP_LOCK_ASSERT(sc)	mtx_assert(TULIP_MUTEX(sc), MA_OWNED)
984
985#endif	/* _DEVAR_H */
986