xref: /titanic_50/usr/src/uts/common/io/bge/bge_impl.h (revision 3fbbb872ea33adea240e8fd8c692f6d3131cc69b)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _BGE_IMPL_H
28 #define	_BGE_IMPL_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
36 #include <sys/types.h>
37 #include <sys/stream.h>
38 #include <sys/strsun.h>
39 #include <sys/strsubr.h>
40 #include <sys/stat.h>
41 #include <sys/pci.h>
42 #include <sys/note.h>
43 #include <sys/modctl.h>
44 #include <sys/crc32.h>
45 #ifdef	__sparcv9
46 #include <v9/sys/membar.h>
47 #endif	/* __sparcv9 */
48 #include <sys/kstat.h>
49 #include <sys/ethernet.h>
50 #include <sys/vlan.h>
51 #include <sys/errno.h>
52 #include <sys/dlpi.h>
53 #include <sys/devops.h>
54 #include <sys/debug.h>
55 #include <sys/conf.h>
56 
57 #include <netinet/ip6.h>
58 
59 #include <inet/common.h>
60 #include <inet/ip.h>
61 #include <inet/mi.h>
62 #include <inet/nd.h>
63 #include <sys/pattr.h>
64 
65 #include <sys/disp.h>
66 #include <sys/ddi.h>
67 #include <sys/sunddi.h>
68 
69 #include <sys/ddifm.h>
70 #include <sys/fm/protocol.h>
71 #include <sys/fm/util.h>
72 #include <sys/fm/io/ddi.h>
73 
74 #include <sys/mac.h>
75 #include <sys/mac_ether.h>
76 
77 #ifdef __amd64
78 #include <sys/x86_archext.h>
79 #endif
80 
81 /*
82  * <sys/ethernet.h> *may* already have provided the typedef ether_addr_t;
83  * but of course C doesn't provide a way to check this directly.  So here
84  * we rely on the fact that the symbol ETHERTYPE_AT was added to the
85  * header file (as a #define, which we *can* test for) at the same time
86  * as the typedef for ether_addr_t ;-!
87  */
88 #ifndef	ETHERTYPE_AT
89 typedef uchar_t ether_addr_t[ETHERADDRL];
90 #endif	/* ETHERTYPE_AT */
91 
92 /*
93  * Reconfiguring the network devices requires the net_config privilege
94  * in Solaris 10+.
95  */
96 extern int secpolicy_net_config(const cred_t *, boolean_t);
97 
98 #include <sys/netlb.h>			/* originally from cassini	*/
99 #include <sys/miiregs.h>		/* by fjlite out of intel 	*/
100 
101 #include "bge.h"
102 #include "bge_hw.h"
103 
104 /*
105  * Compile-time feature switches ...
106  */
107 #define	BGE_DO_PPIO		0	/* peek/poke ioctls		*/
108 #define	BGE_RX_SOFTINT		0	/* softint per receive ring	*/
109 #define	BGE_CHOOSE_SEND_METHOD	0	/* send by copying only		*/
110 
111 /*
112  * NOTES:
113  *
114  * #defines:
115  *
116  *	BGE_PCI_CONFIG_RNUMBER and BGE_PCI_OPREGS_RNUMBER are the
117  *	register-set numbers to use for the config space registers
118  *	and the operating registers respectively.  On an OBP-based
119  *	machine, regset 0 refers to CONFIG space, and regset 1 will
120  *	be the operating registers in MEMORY space.  If an expansion
121  *	ROM is fitted, it may appear as a further register set.
122  *
123  *	BGE_DMA_MODE defines the mode (STREAMING/CONSISTENT) used
124  *	for the data buffers.  The descriptors are always set up
125  *	in CONSISTENT mode.
126  *
127  *	BGE_HEADROOM defines how much space we'll leave in allocated
128  *	mblks before the first valid data byte.  This should be chosen
129  *	to be 2 modulo 4, so that once the ethernet header (14 bytes)
130  *	has been stripped off, the packet data will be 4-byte aligned.
131  *	The remaining space can be used by upstream modules to prepend
132  *	any headers required.
133  */
134 
135 #define	BGE_PCI_CONFIG_RNUMBER	0
136 #define	BGE_PCI_OPREGS_RNUMBER	1
137 #define	BGE_DMA_MODE		DDI_DMA_STREAMING
138 #define	BGE_HEADROOM		34
139 
140 /*
141  *	BGE_HALFTICK is half the period of the cyclic callback (in
142  *	nanoseconds), chosen so that 0.5s <= cyclic period <= 1s.
143  *	Other time values are derived as odd multiples of this value
144  *	so that there's little chance of ambiguity w.r.t. which tick
145  *	a timeout expires on.
146  *
147  *	BGE_PHY_STABLE_TIME is the period for which the contents of the
148  *	PHY's status register must remain unchanging before we accept
149  *	that the link has come up.  [Sometimes the link comes up, only
150  *	to go down again within a short time as the autonegotiation
151  *	process cycles through various options before finding the best
152  *	compatible mode.  We don't want to report repeated link up/down
153  *	cycles, so we wait until we think it's stable.]
154  *
155  *	BGE_SERDES_STABLE_TIME is the analogous value for the SerDes
156  *	interface.  It's much shorter, 'cos the SerDes doesn't show
157  *	these effects as much as the copper PHY.
158  *
159  *	BGE_LINK_SETTLE_TIME is the period during which we regard link
160  *	up/down cycles as an normal event after resetting/reprogramming
161  *	the PHY.  During this time, link up/down messages are sent to
162  *	the log only, not the console.  At any other time, link change
163  *	events are regarded as unexpected and sent to both console & log.
164  *
165  *	These latter two values have no theoretical justification, but
166  *	are derived from observations and heuristics - the values below
167  *	just seem to work quite well.
168  */
169 
170 #define	BGE_HALFTICK		268435456LL		/* 2**28 ns!	*/
171 #define	BGE_CYCLIC_PERIOD	(2*BGE_HALFTICK)	/*    ~0.5s	*/
172 #define	BGE_SERDES_STABLE_TIME	(3*BGE_HALFTICK)	/*    ~0.8s	*/
173 #define	BGE_PHY_STABLE_TIME	(11*BGE_HALFTICK)	/*    ~3.0s	*/
174 #define	BGE_LINK_SETTLE_TIME	(111*BGE_HALFTICK)	/*   ~30.0s	*/
175 
176 /*
177  * Indices used to identify the different buffer rings internally
178  */
179 #define	BGE_STD_BUFF_RING	0
180 #define	BGE_JUMBO_BUFF_RING	1
181 #define	BGE_MINI_BUFF_RING	2
182 
183 /*
184  * Current implementation limits
185  */
186 #define	BGE_BUFF_RINGS_USED	2		/* std & jumbo ring	*/
187 						/* for now		*/
188 #define	BGE_RECV_RINGS_USED	16		/* up to 16 rtn rings	*/
189 						/* for now		*/
190 #define	BGE_SEND_RINGS_USED	4		/* up to 4 tx rings	*/
191 						/* for now		*/
192 #define	BGE_HASH_TABLE_SIZE	128		/* may be 256 later	*/
193 
194 /*
195  * Ring/buffer size parameters
196  *
197  * All of the (up to) 16 TX rings & and the corresponding buffers are the
198  * same size.
199  *
200  * Each of the (up to) 3 receive producer (aka buffer) rings is a different
201  * size and has different sized buffers associated with it too.
202  *
203  * The (up to) 16 receive return rings have no buffers associated with them.
204  * The number of slots per receive return ring must be 2048 if the mini
205  * ring is enabled, otherwise it may be 1024.  See Broadcom document
206  * 570X-PG102-R page 56.
207  *
208  * Note: only the 5700 supported external memory (and therefore the mini
209  * ring); the 5702/3/4 don't.  This driver doesn't support the original
210  * 5700, so we won't ever use the mini ring capability.
211  */
212 
213 #define	BGE_SEND_RINGS_DEFAULT		1
214 #define	BGE_RECV_RINGS_DEFAULT		1
215 
216 #define	BGE_SEND_BUFF_SIZE_DEFAULT	1536
217 #define	BGE_SEND_BUFF_SIZE_JUMBO	9022
218 #define	BGE_SEND_SLOTS_USED	512
219 
220 #define	BGE_STD_BUFF_SIZE	1536		/* 0x600		*/
221 #define	BGE_STD_SLOTS_USED	512
222 
223 #define	BGE_JUMBO_BUFF_SIZE	9022		/* 9k			*/
224 #define	BGE_JUMBO_SLOTS_USED	256
225 
226 #define	BGE_MINI_BUFF_SIZE	128		/* 64? 256?		*/
227 #define	BGE_MINI_SLOTS_USED	0		/* must be 0; see above	*/
228 
229 #define	BGE_RECV_BUFF_SIZE	0
230 #if	BGE_MINI_SLOTS_USED > 0
231 #define	BGE_RECV_SLOTS_USED	2048		/* required		*/
232 #else
233 #define	BGE_RECV_SLOTS_USED	1024		/* could be 2048 anyway	*/
234 #endif
235 
236 #define	BGE_SEND_BUF_NUM	512
237 #define	BGE_SEND_BUF_ARRAY	16
238 #define	BGE_SEND_BUF_ARRAY_JUMBO	3
239 #define	BGE_SEND_BUF_MAX	(BGE_SEND_BUF_NUM*BGE_SEND_BUF_ARRAY)
240 
241 /*
242  * PCI type. PCI-Express or PCI/PCIX
243  */
244 #define	BGE_PCI		0
245 #define	BGE_PCI_E	1
246 #define	BGE_PCI_X	2
247 
248 /*
249  * Statistic type. There are two type of statistic:
250  * statistic block and statistic registers
251  */
252 #define	BGE_STAT_BLK	1
253 #define	BGE_STAT_REG	2
254 
255 /*
256  * MTU.for all chipsets ,the default is 1500 ,and some chipsets
257  * support 9k jumbo frames size
258  */
259 #define	BGE_DEFAULT_MTU		1500
260 #define	BGE_MAXIMUM_MTU		9000
261 
262 /*
263  * Pad the h/w defined status block (which can be up to 80 bytes long)
264  * to a power-of-two boundary
265  */
266 #define	BGE_STATUS_PADDING	(128 - sizeof (bge_status_t))
267 
268 /*
269  * On platforms which support DVMA, we can simply allocate one big piece
270  * of memory for all the Tx buffers and another for the Rx buffers, and
271  * then carve them up as required.  It doesn't matter if they aren't just
272  * one physically contiguous piece each, because both the CPU *and* the
273  * I/O device can see them *as though they were*.
274  *
275  * However, if only physically-addressed DMA is possible, this doesn't
276  * work; we can't expect to get enough contiguously-addressed memory for
277  * all the buffers of each type, so in this case we request a number of
278  * smaller pieces, each still large enough for several buffers but small
279  * enough to fit within "an I/O page" (e.g. 64K).
280  *
281  * The #define below specifies how many pieces of memory are to be used;
282  * 16 has been shown to work on an i86pc architecture but this could be
283  * different on other non-DVMA platforms ...
284  */
285 #ifdef	_DMA_USES_VIRTADDR
286 #define	BGE_SPLIT		1		/* no split required	*/
287 #else
288 #if ((BGE_BUFF_RINGS_USED > 1) || (BGE_SEND_RINGS_USED > 1) || \
289 	(BGE_RECV_RINGS_USED > 1))
290 #define	BGE_SPLIT		128		/* split 128 ways	*/
291 #else
292 #define	BGE_SPLIT		16		/* split 16 ways	*/
293 #endif
294 #endif	/* _DMA_USES_VIRTADDR */
295 
296 #define	BGE_RECV_RINGS_SPLIT	(BGE_RECV_RINGS_MAX + 1)
297 
298 /*
299  * STREAMS parameters
300  */
301 #define	BGE_IDNUM		0		/* zero seems to work	*/
302 #define	BGE_LOWAT		(256)
303 #define	BGE_HIWAT		(256*1024)
304 
305 
306 /*
307  * Basic data types, for clarity in distinguishing 'numbers'
308  * used for different purposes ...
309  *
310  * A <bge_regno_t> is a register 'address' (offset) in any one of
311  * various address spaces (PCI config space, PCI memory-mapped I/O
312  * register space, MII registers, etc).  None of these exceeds 64K,
313  * so we could use a 16-bit representation but pointer-sized objects
314  * are more "natural" in most architectures; they seem to be handled
315  * more efficiently on SPARC and no worse on x86.
316  *
317  * BGE_REGNO_NONE represents the non-existent value in this space.
318  */
319 typedef uintptr_t bge_regno_t;			/* register # (offset)	*/
320 #define	BGE_REGNO_NONE		(~(uintptr_t)0u)
321 
322 /*
323  * Describes one chunk of allocated DMA-able memory
324  *
325  * In some cases, this is a single chunk as allocated from the system;
326  * but we also use this structure to represent slices carved off such
327  * a chunk.  Even when we don't really need all the information, we
328  * use this structure as a convenient way of correlating the various
329  * ways of looking at a piece of memory (kernel VA, IO space DVMA,
330  * handle+offset, etc).
331  */
332 typedef struct {
333 	ddi_acc_handle_t	acc_hdl;	/* handle for memory	*/
334 	void			*mem_va;	/* CPU VA of memory	*/
335 	uint32_t		nslots;		/* number of slots	*/
336 	uint32_t		size;		/* size per slot	*/
337 	size_t			alength;	/* allocated size	*/
338 						/* >= product of above	*/
339 
340 	ddi_dma_handle_t	dma_hdl;	/* DMA handle		*/
341 	offset_t		offset;		/* relative to handle	*/
342 	ddi_dma_cookie_t	cookie;		/* associated cookie	*/
343 	uint32_t		ncookies;	/* must be 1		*/
344 	uint32_t		token;		/* arbitrary identifier	*/
345 } dma_area_t;					/* 0x50 (80) bytes	*/
346 
347 typedef struct bge_queue_item {
348 	struct bge_queue_item	*next;
349 	void			*item;
350 } bge_queue_item_t;
351 
352 typedef struct bge_queue {
353 	bge_queue_item_t	*head;
354 	uint32_t		count;
355 	kmutex_t		*lock;
356 } bge_queue_t;
357 /*
358  * Software version of the Receive Buffer Descriptor
359  * There's one of these for each receive buffer (up to 256/512/1024 per ring).
360  */
361 typedef struct sw_rbd {
362 	dma_area_t		pbuf;		/* (const) related	*/
363 						/* buffer area		*/
364 } sw_rbd_t;					/* 0x50 (80) bytes	*/
365 
366 /*
367  * Software Receive Buffer (Producer) Ring Control Block
368  * There's one of these for each receiver producer ring (up to 3),
369  * but each holds buffers of a different size.
370  */
371 typedef struct buff_ring {
372 	dma_area_t		desc;		/* (const) related h/w	*/
373 						/* descriptor area	*/
374 	dma_area_t		buf[BGE_SPLIT];	/* (const) related	*/
375 						/* buffer area(s)	*/
376 	bge_rcb_t		hw_rcb;		/* (const) image of h/w	*/
377 						/* RCB, and used to	*/
378 	struct bge		*bgep;		/* (const) containing	*/
379 						/* driver soft state	*/
380 						/* initialise same	*/
381 	volatile uint16_t	*cons_index_p;	/* (const) ptr to h/w	*/
382 						/* "consumer index"	*/
383 						/* (in status block)	*/
384 
385 	/*
386 	 * The rf_lock must be held when updating the h/w producer index
387 	 * mailbox register (*chip_mbox_reg), or the s/w producer index
388 	 * (rf_next).
389 	 */
390 	bge_regno_t		chip_mbx_reg;	/* (const) h/w producer	*/
391 						/* index mailbox offset	*/
392 	kmutex_t		rf_lock[1];	/* serialize refill	*/
393 	uint64_t		rf_next;	/* next slot to refill	*/
394 						/* ("producer index")	*/
395 
396 	sw_rbd_t		*sw_rbds; 	/* software descriptors	*/
397 	void			*spare[4];	/* padding		*/
398 } buff_ring_t;					/* 0x100 (256) bytes	*/
399 
400 /*
401  * Software Receive (Return) Ring Control Block
402  * There's one of these for each receiver return ring (up to 16).
403  */
404 typedef struct recv_ring {
405 	/*
406 	 * The elements flagged (const) in the comments below are
407 	 * set up once during initialiation and thereafter unchanged.
408 	 */
409 	dma_area_t		desc;		/* (const) related h/w	*/
410 						/* descriptor area	*/
411 	bge_rcb_t		hw_rcb;		/* (const) image of h/w	*/
412 						/* RCB, and used to	*/
413 						/* initialise same	*/
414 	struct bge		*bgep;		/* (const) containing	*/
415 						/* driver soft state	*/
416 	ddi_softintr_t		rx_softint;	/* (const) per-ring	*/
417 						/* receive callback	*/
418 	volatile uint16_t	*prod_index_p;	/* (const) ptr to h/w	*/
419 						/* "producer index"	*/
420 						/* (in status block)	*/
421 
422 	/*
423 	 * The rx_lock must be held when updating the h/w consumer index
424 	 * mailbox register (*chip_mbox_reg), or the s/w consumer index
425 	 * (rx_next).
426 	 */
427 	bge_regno_t		chip_mbx_reg;	/* (const) h/w consumer	*/
428 						/* index mailbox offset	*/
429 	kmutex_t		rx_lock[1];	/* serialize receive	*/
430 	uint64_t		rx_next;	/* next slot to examine	*/
431 	mac_resource_handle_t	handle;		/* per ring cookie	*/
432 						/* ("producer index")	*/
433 } recv_ring_t;					/* 0x90 (144) bytes	*/
434 
435 /*
436  * Send packet structure
437  */
438 typedef struct send_pkt {
439 	uint16_t		vlan_tci;
440 	uint32_t		pflags;
441 	boolean_t		tx_ready;
442 	bge_queue_item_t	*txbuf_item;
443 } send_pkt_t;
444 
445 /*
446  * Software version of tx buffer structure
447  */
448 typedef struct sw_txbuf {
449 	dma_area_t		buf;
450 	uint32_t		copy_len;
451 } sw_txbuf_t;
452 
453 /*
454  * Software version of the Send Buffer Descriptor
455  * There's one of these for each send buffer (up to 512 per ring)
456  */
457 typedef struct sw_sbd {
458 	dma_area_t		desc;		/* (const) related h/w	*/
459 						/* descriptor area	*/
460 	bge_queue_item_t	*pbuf;		/* (const) related	*/
461 						/* buffer area		*/
462 } sw_sbd_t;
463 
464 /*
465  * Software Send Ring Control Block
466  * There's one of these for each of (up to) 16 send rings
467  */
468 typedef struct send_ring {
469 	/*
470 	 * The elements flagged (const) in the comments below are
471 	 * set up once during initialiation and thereafter unchanged.
472 	 */
473 	dma_area_t		desc;		/* (const) related h/w	*/
474 						/* descriptor area	*/
475 	dma_area_t		buf[BGE_SEND_BUF_ARRAY][BGE_SPLIT];
476 						/* buffer area(s)	*/
477 	bge_rcb_t		hw_rcb;		/* (const) image of h/w	*/
478 						/* RCB, and used to	*/
479 						/* initialise same	*/
480 	struct bge		*bgep;		/* (const) containing	*/
481 						/* driver soft state	*/
482 	volatile uint16_t	*cons_index_p;	/* (const) ptr to h/w	*/
483 						/* "consumer index"	*/
484 						/* (in status block)	*/
485 
486 	bge_regno_t		chip_mbx_reg;	/* (const) h/w producer	*/
487 						/* index mailbox offset	*/
488 	/*
489 	 * Tx buffer queue
490 	 */
491 	bge_queue_t		txbuf_queue;
492 	bge_queue_t		freetxbuf_queue;
493 	bge_queue_t		*txbuf_push_queue;
494 	bge_queue_t		*txbuf_pop_queue;
495 	kmutex_t		txbuf_lock[1];
496 	kmutex_t		freetxbuf_lock[1];
497 	bge_queue_item_t	*txbuf_head;
498 	send_pkt_t		*pktp;
499 	uint64_t		txpkt_next;
500 	uint64_t		txfill_next;
501 	sw_txbuf_t		*txbuf;
502 	uint32_t		tx_buffers;
503 	uint32_t		tx_buffers_low;
504 	uint32_t		tx_array_max;
505 	uint32_t		tx_array;
506 	kmutex_t		tx_lock[1];	/* serialize h/w update	*/
507 						/* ("producer index")	*/
508 	uint64_t		tx_next;	/* next slot to use	*/
509 	uint64_t		tx_flow;	/* # concurrent sends	*/
510 	uint64_t		tx_block;
511 	uint64_t		tx_nobd;
512 	uint64_t		tx_nobuf;
513 	uint64_t		tx_alloc_fail;
514 
515 	/*
516 	 * These counters/indexes are manipulated in the transmit
517 	 * path using atomics rather than mutexes for speed
518 	 */
519 	uint64_t		tx_free;	/* # of slots available	*/
520 
521 	/*
522 	 * The tc_lock must be held while manipulating the s/w consumer
523 	 * index (tc_next).
524 	 */
525 	kmutex_t		tc_lock[1];	/* serialize recycle	*/
526 	uint64_t		tc_next;	/* next slot to recycle	*/
527 						/* ("consumer index")	*/
528 
529 	sw_sbd_t		*sw_sbds; 	/* software descriptors	*/
530 	uint64_t		mac_resid;	/* special per resource id */
531 } send_ring_t;					/* 0x100 (256) bytes	*/
532 
533 typedef struct {
534 	ether_addr_t		addr;		/* in canonical form	*/
535 	uint8_t			spare;
536 	boolean_t		set;		/* B_TRUE => valid	*/
537 } bge_mac_addr_t;
538 
539 /*
540  * The original 5700/01 supported only SEEPROMs.  Later chips (5702+)
541  * support both SEEPROMs (using the same 2-wire CLK/DATA interface for
542  * the hardware and a backwards-compatible software access method), and
543  * buffered or unbuffered FLASH devices connected to the 4-wire SPI bus
544  * and using a new software access method.
545  *
546  * The access methods for SEEPROM and Flash are generally similar, with
547  * the chip handling the serialisation/deserialisation and handshaking,
548  * but the registers used are different, as are a few details of the
549  * protocol, and the timing, so we have to determine which (if any) is
550  * fitted.
551  *
552  * The value UNKNOWN means just that; we haven't yet tried to determine
553  * the device type.
554  *
555  * The value NONE can indicate either that a real and definite absence of
556  * any NVmem has been detected, or that there may be NVmem but we can't
557  * determine its type, perhaps because the NVconfig pins on the chip have
558  * been wired up incorrectly.  In either case, access to the NVmem (if any)
559  * is not supported.
560  */
561 enum bge_nvmem_type {
562 	BGE_NVTYPE_NONE = -1,			/* (or indeterminable)	*/
563 	BGE_NVTYPE_UNKNOWN,			/* not yet checked	*/
564 	BGE_NVTYPE_SEEPROM,			/* BCM5700/5701 only	*/
565 	BGE_NVTYPE_LEGACY_SEEPROM,		/* 5702+		*/
566 	BGE_NVTYPE_UNBUFFERED_FLASH,		/* 5702+		*/
567 	BGE_NVTYPE_BUFFERED_FLASH		/* 5702+		*/
568 };
569 
570 /*
571  * Describes the characteristics of a specific chip
572  *
573  * Note: elements from <businfo> to <latency> are filled in by during
574  * the first phase of chip initialisation (see bge_chip_cfg_init()).
575  * The remaining ones are determined just after the first RESET, in
576  * bge_poll_firmware().  Thereafter, the entire structure is readonly.
577  */
578 typedef struct {
579 	uint32_t		asic_rev;	/* masked from MHCR	*/
580 	uint32_t		businfo;	/* from private reg	*/
581 	uint16_t		command;	/* saved during attach	*/
582 
583 	uint16_t		vendor;		/* vendor-id		*/
584 	uint16_t		device;		/* device-id		*/
585 	uint16_t		subven;		/* subsystem-vendor-id	*/
586 	uint16_t		subdev;		/* subsystem-id		*/
587 	uint8_t			revision;	/* revision-id		*/
588 	uint8_t			clsize;		/* cache-line-size	*/
589 	uint8_t			latency;	/* latency-timer	*/
590 
591 	uint8_t			flags;
592 	uint16_t		chip_label;	/* numeric part only	*/
593 						/* (e.g. 5703/5794/etc)	*/
594 	uint32_t		mbuf_base;	/* Mbuf pool parameters */
595 	uint32_t		mbuf_length;	/* depend on chiptype	*/
596 	uint32_t		pci_type;
597 	uint32_t		statistic_type;
598 	uint32_t		bge_dma_rwctrl;
599 	uint32_t		bge_mlcr_default;
600 	uint32_t		recv_slots;	/* receive ring size    */
601 	enum bge_nvmem_type	nvtype;		/* SEEPROM or Flash	*/
602 
603 	uint16_t		jumbo_slots;
604 	uint16_t		ethmax_size;
605 	uint16_t		snd_buff_size;
606 	uint16_t		recv_jumbo_size;
607 	uint16_t		std_buf_size;
608 	uint32_t		mbuf_hi_water;
609 	uint32_t		mbuf_lo_water_rmac;
610 	uint32_t		mbuf_lo_water_rdma;
611 
612 	uint32_t		rx_rings;	/* from bge.conf	*/
613 	uint32_t		tx_rings;	/* from bge.conf	*/
614 	uint32_t		default_mtu;	/* from bge.conf	*/
615 
616 	uint64_t		hw_mac_addr;	/* from chip register	*/
617 	bge_mac_addr_t		vendor_addr;	/* transform of same	*/
618 	boolean_t		msi_enabled;	/* default to true */
619 } chip_id_t;
620 
621 #define	CHIP_FLAG_SUPPORTED	0x80
622 #define	CHIP_FLAG_SERDES	0x40
623 #define	CHIP_FLAG_PARTIAL_CSUM	0x20
624 #define	CHIP_FLAG_NO_JUMBO	0x1
625 
626 /*
627  * Collection of physical-layer functions to:
628  *	(re)initialise the physical layer
629  *	update it to match software settings
630  *	check for link status change
631  */
632 typedef struct {
633 	int			(*phys_restart)(struct bge *, boolean_t);
634 	int			(*phys_update)(struct bge *);
635 	boolean_t		(*phys_check)(struct bge *, boolean_t);
636 } phys_ops_t;
637 
638 /*
639  * Named Data (ND) Parameter Management Structure
640  */
641 typedef struct {
642 	int			ndp_info;
643 	int			ndp_min;
644 	int			ndp_max;
645 	int			ndp_val;
646 	char			*ndp_name;
647 } nd_param_t;					/* 0x18 (24) bytes	*/
648 
649 /*
650  * NDD parameter indexes, divided into:
651  *
652  *	read-only parameters describing the hardware's capabilities
653  *	read-write parameters controlling the advertised capabilities
654  *	read-only parameters describing the partner's capabilities
655  *	read-only parameters describing the link state
656  */
657 enum {
658 	PARAM_AUTONEG_CAP,
659 	PARAM_PAUSE_CAP,
660 	PARAM_ASYM_PAUSE_CAP,
661 	PARAM_1000FDX_CAP,
662 	PARAM_1000HDX_CAP,
663 	PARAM_100T4_CAP,
664 	PARAM_100FDX_CAP,
665 	PARAM_100HDX_CAP,
666 	PARAM_10FDX_CAP,
667 	PARAM_10HDX_CAP,
668 
669 	PARAM_ADV_AUTONEG_CAP,
670 	PARAM_ADV_PAUSE_CAP,
671 	PARAM_ADV_ASYM_PAUSE_CAP,
672 	PARAM_ADV_1000FDX_CAP,
673 	PARAM_ADV_1000HDX_CAP,
674 	PARAM_ADV_100T4_CAP,
675 	PARAM_ADV_100FDX_CAP,
676 	PARAM_ADV_100HDX_CAP,
677 	PARAM_ADV_10FDX_CAP,
678 	PARAM_ADV_10HDX_CAP,
679 
680 	PARAM_LP_AUTONEG_CAP,
681 	PARAM_LP_PAUSE_CAP,
682 	PARAM_LP_ASYM_PAUSE_CAP,
683 	PARAM_LP_1000FDX_CAP,
684 	PARAM_LP_1000HDX_CAP,
685 	PARAM_LP_100T4_CAP,
686 	PARAM_LP_100FDX_CAP,
687 	PARAM_LP_100HDX_CAP,
688 	PARAM_LP_10FDX_CAP,
689 	PARAM_LP_10HDX_CAP,
690 
691 	PARAM_LINK_STATUS,
692 	PARAM_LINK_SPEED,
693 	PARAM_LINK_DUPLEX,
694 
695 	PARAM_LINK_AUTONEG,
696 	PARAM_LINK_RX_PAUSE,
697 	PARAM_LINK_TX_PAUSE,
698 
699 	PARAM_LOOP_MODE,
700 	PARAM_MSI_CNT,
701 
702 	PARAM_DRAIN_MAX,
703 
704 	PARAM_COUNT
705 };
706 
707 /*
708  * Actual state of the BCM570x chip
709  */
710 enum bge_chip_state {
711 	BGE_CHIP_FAULT = -2,			/* fault, need reset	*/
712 	BGE_CHIP_ERROR,				/* error, want reset	*/
713 	BGE_CHIP_INITIAL,			/* Initial state only	*/
714 	BGE_CHIP_RESET,				/* reset, need init	*/
715 	BGE_CHIP_STOPPED,			/* Tx/Rx stopped	*/
716 	BGE_CHIP_RUNNING			/* with interrupts	*/
717 };
718 
719 enum bge_mac_state {
720 	BGE_MAC_STOPPED = 0,
721 	BGE_MAC_STARTED
722 };
723 
724 /*
725  * (Internal) return values from ioctl subroutines
726  */
727 enum ioc_reply {
728 	IOC_INVAL = -1,				/* bad, NAK with EINVAL	*/
729 	IOC_DONE,				/* OK, reply sent	*/
730 	IOC_ACK,				/* OK, just send ACK	*/
731 	IOC_REPLY,				/* OK, just send reply	*/
732 	IOC_RESTART_ACK,			/* OK, restart & ACK	*/
733 	IOC_RESTART_REPLY			/* OK, restart & reply	*/
734 };
735 
736 /*
737  * (Internal) return values from send_msg subroutines
738  */
739 enum send_status {
740 	SEND_FAIL = -1,				/* Not OK		*/
741 	SEND_KEEP,				/* OK, msg queued	*/
742 	SEND_FREE				/* OK, free msg		*/
743 };
744 
745 /*
746  * (Internal) enumeration of this driver's kstats
747  */
748 enum {
749 	BGE_KSTAT_RAW = 0,
750 	BGE_KSTAT_STATS,
751 	BGE_KSTAT_CHIPID,
752 	BGE_KSTAT_DRIVER,
753 	BGE_KSTAT_PHYS,
754 
755 	BGE_KSTAT_COUNT
756 };
757 
758 #define	BGE_MAX_RESOURCES 255
759 
760 /*
761  * Per-instance soft-state structure
762  */
763 typedef struct bge {
764 	/*
765 	 * These fields are set by attach() and unchanged thereafter ...
766 	 */
767 	dev_info_t		*devinfo;	/* device instance	*/
768 	mac_handle_t		mh;		/* mac module handle	*/
769 	ddi_acc_handle_t	cfg_handle;	/* DDI I/O handle	*/
770 	ddi_acc_handle_t	io_handle;	/* DDI I/O handle	*/
771 	void			*io_regs;	/* mapped registers	*/
772 	ddi_periodic_t		periodic_id;	/* periodical callback	*/
773 	ddi_softintr_t		factotum_id;	/* factotum callback	*/
774 	ddi_softintr_t		drain_id;	/* reschedule callback	*/
775 
776 	ddi_intr_handle_t 	*htable;	/* For array of interrupts */
777 	int			intr_type;	/* What type of interrupt */
778 	int			intr_cnt;	/* # of intrs count returned */
779 	uint_t			intr_pri;	/* Interrupt priority	*/
780 	int			intr_cap;	/* Interrupt capabilities */
781 	uint32_t		progress;	/* attach tracking	*/
782 	uint32_t		debug;		/* per-instance debug	*/
783 	chip_id_t		chipid;
784 	const phys_ops_t	*physops;
785 	char			ifname[8];	/* "bge0" ... "bge999"	*/
786 
787 	int			fm_capabilities;	/* FMA capabilities */
788 
789 	/*
790 	 * These structures describe the blocks of memory allocated during
791 	 * attach().  They remain unchanged thereafter, although the memory
792 	 * they describe is carved up into various separate regions and may
793 	 * therefore be described by other structures as well.
794 	 */
795 	dma_area_t		tx_desc;	/* transmit descriptors	*/
796 	dma_area_t		rx_desc[BGE_RECV_RINGS_SPLIT];
797 						/* receive descriptors	*/
798 	dma_area_t		tx_buff[BGE_SPLIT];
799 	dma_area_t		rx_buff[BGE_SPLIT];
800 
801 	/*
802 	 * The memory described by the <dma_area> structures above
803 	 * is carved up into various pieces, which are described by
804 	 * the structures below.
805 	 */
806 	dma_area_t		statistics;	/* describes hardware	*/
807 						/* statistics area	*/
808 	dma_area_t		status_block;	/* describes hardware	*/
809 						/* status block		*/
810 	/*
811 	 * For the BCM5705/5788/5721/5751/5752/5714 and 5715,
812 	 * the statistic block is not available,the statistic counter must
813 	 * be gotten from statistic registers.And bge_statistics_reg_t record
814 	 * the statistic registers value
815 	 */
816 	bge_statistics_reg_t	*pstats;
817 
818 	/*
819 	 * Runtime read-write data starts here ...
820 	 *
821 	 * 3 Buffer Rings (std/jumbo/mini)
822 	 * 16 Receive (Return) Rings
823 	 * 16 Send Rings
824 	 *
825 	 * Note: they're not necessarily all used.
826 	 */
827 	buff_ring_t		buff[BGE_BUFF_RINGS_MAX]; /*  3*0x0100	*/
828 	recv_ring_t		recv[BGE_RECV_RINGS_MAX]; /* 16*0x0090	*/
829 	send_ring_t		send[BGE_SEND_RINGS_MAX]; /* 16*0x0100	*/
830 
831 	/*
832 	 * Locks:
833 	 *
834 	 * Each buffer ring contains its own <rf_lock> which regulates
835 	 *	ring refilling.
836 	 *
837 	 * Each receive (return) ring contains its own <rx_lock> which
838 	 *	protects the critical cyclic counters etc.
839 	 *
840 	 * Each send ring contains two locks: <tx_lock> for the send-path
841 	 * 	protocol data and <tc_lock> for send-buffer recycling.
842 	 *
843 	 * Finally <genlock> is a general lock, protecting most other
844 	 *	operational data in the state structure and chip register
845 	 *	accesses.  It is acquired by the interrupt handler and
846 	 *	most "mode-control" routines.
847 	 *
848 	 * Any of the locks can be acquired singly, but where multiple
849 	 * locks are acquired, they *must* be in the order:
850 	 *
851 	 *	genlock >>> rx_lock >>> rf_lock >>> tx_lock >>> tc_lock.
852 	 *
853 	 * and within any one class of lock the rings must be locked in
854 	 * ascending order (send[0].tc_lock >>> send[1].tc_lock), etc.
855 	 *
856 	 * Note: actually I don't believe there's any need to acquire
857 	 * locks on multiple rings, or even locks of all these classes
858 	 * concurrently; but I've set out the above order so there is a
859 	 * clear definition of lock hierarchy in case it's ever needed.
860 	 *
861 	 * Note: the combinations of locks that are actually held
862 	 * concurrently are:
863 	 *
864 	 *	genlock >>>			(bge_chip_interrupt())
865 	 *		rx_lock[i] >>>		(bge_receive())
866 	 *			rf_lock[n]	(bge_refill())
867 	 *		tc_lock[i]		(bge_recycle())
868 	 */
869 	kmutex_t		genlock[1];
870 	krwlock_t		errlock[1];
871 	kmutex_t		softintrlock[1];
872 
873 	/*
874 	 * Current Ethernet addresses and multicast hash (bitmap) and
875 	 * refcount tables, protected by <genlock>
876 	 */
877 	bge_mac_addr_t		curr_addr[MAC_ADDRESS_REGS_MAX];
878 	uint32_t		mcast_hash[BGE_HASH_TABLE_SIZE/32];
879 	uint8_t			mcast_refs[BGE_HASH_TABLE_SIZE];
880 	uint32_t		unicst_addr_total; /* total unicst addresses */
881 	uint32_t		unicst_addr_avail;
882 					/* unused unicst addr slots */
883 
884 	/*
885 	 * Link state data (protected by genlock)
886 	 */
887 	link_state_t		link_state;
888 
889 	/*
890 	 * Physical layer: copper only
891 	 */
892 	bge_regno_t		phy_mii_addr;	/* should be (const) 1!	*/
893 	uint16_t		phy_gen_status;
894 	uint16_t		phy_aux_status;
895 
896 	/*
897 	 * Physical layer: serdes only
898 	 */
899 	uint32_t		serdes_status;
900 	uint32_t		serdes_advert;
901 	uint32_t		serdes_lpadv;
902 
903 	/*
904 	 * Driver kstats, protected by <genlock> where necessary
905 	 */
906 	kstat_t			*bge_kstats[BGE_KSTAT_COUNT];
907 
908 	/*
909 	 * Miscellaneous operating variables (protected by genlock)
910 	 */
911 	uint64_t		chip_resets;	/* # of chip RESETs	*/
912 	uint64_t		missed_dmas;	/* # of missed DMAs	*/
913 	uint64_t		missed_updates;	/* # of missed updates	*/
914 	enum bge_mac_state	bge_mac_state;	/* definitions above	*/
915 	enum bge_chip_state	bge_chip_state;	/* definitions above	*/
916 	boolean_t		send_hw_tcp_csum;
917 	boolean_t		recv_hw_tcp_csum;
918 	boolean_t		promisc;
919 
920 	/*
921 	 * Miscellaneous operating variables (not synchronised)
922 	 */
923 	uint32_t		watchdog;	/* watches for Tx stall	*/
924 	boolean_t		bge_intr_running;
925 	boolean_t		bge_dma_error;
926 	boolean_t		tx_resched_needed;
927 	uint64_t		tx_resched;
928 	uint32_t		factotum_flag;	/* softint pending	*/
929 	uintptr_t		pagemask;
930 
931 	/*
932 	 * NDD parameters (protected by genlock)
933 	 */
934 	caddr_t			nd_data_p;
935 	nd_param_t		*nd_params;
936 
937 	/*
938 	 * A flag to prevent excessive config space accesses
939 	 * on platforms having BCM5714C/15C
940 	 */
941 	boolean_t		lastWriteZeroData;
942 
943 	/*
944 	 * Spare space, plus guard element used to check data integrity
945 	 */
946 	uint64_t		spare[5];
947 	uint64_t		bge_guard;
948 
949 	/*
950 	 * Receive rules configure
951 	 */
952 	bge_recv_rule_t	recv_rules[RECV_RULES_NUM_MAX];
953 
954 #ifdef BGE_IPMI_ASF
955 	boolean_t		asf_enabled;
956 	boolean_t		asf_wordswapped;
957 	boolean_t		asf_newhandshake;
958 	boolean_t		asf_pseudostop;
959 
960 	uint32_t		asf_status;
961 	timeout_id_t		asf_timeout_id;
962 #endif
963 } bge_t;
964 
965 /*
966  * 'Progress' bit flags ...
967  */
968 #define	PROGRESS_CFG		0x0001	/* config space mapped		*/
969 #define	PROGRESS_REGS		0x0002	/* registers mapped		*/
970 #define	PROGRESS_BUFS		0x0004	/* ring buffers allocated	*/
971 #define	PROGRESS_RESCHED	0x0010	/* resched softint registered	*/
972 #define	PROGRESS_FACTOTUM	0x0020	/* factotum softint registered	*/
973 #define	PROGRESS_HWINT		0x0040	/* h/w interrupt registered	*/
974 					/* and mutexen initialised	*/
975 #define	PROGRESS_INTR		0x0080	/* Intrs enabled		*/
976 #define	PROGRESS_PHY		0x0100	/* PHY initialised		*/
977 #define	PROGRESS_NDD		0x1000	/* NDD parameters set up	*/
978 #define	PROGRESS_KSTATS		0x2000	/* kstats created		*/
979 #define	PROGRESS_READY		0x8000	/* ready for work		*/
980 
981 /*
982  * Shorthand for the NDD parameters
983  */
984 #define	param_adv_autoneg	nd_params[PARAM_ADV_AUTONEG_CAP].ndp_val
985 #define	param_adv_pause		nd_params[PARAM_ADV_PAUSE_CAP].ndp_val
986 #define	param_adv_asym_pause	nd_params[PARAM_ADV_ASYM_PAUSE_CAP].ndp_val
987 #define	param_adv_1000fdx	nd_params[PARAM_ADV_1000FDX_CAP].ndp_val
988 #define	param_adv_1000hdx	nd_params[PARAM_ADV_1000HDX_CAP].ndp_val
989 #define	param_adv_100fdx	nd_params[PARAM_ADV_100FDX_CAP].ndp_val
990 #define	param_adv_100hdx	nd_params[PARAM_ADV_100HDX_CAP].ndp_val
991 #define	param_adv_10fdx		nd_params[PARAM_ADV_10FDX_CAP].ndp_val
992 #define	param_adv_10hdx		nd_params[PARAM_ADV_10HDX_CAP].ndp_val
993 
994 #define	param_lp_autoneg	nd_params[PARAM_LP_AUTONEG_CAP].ndp_val
995 #define	param_lp_pause		nd_params[PARAM_LP_PAUSE_CAP].ndp_val
996 #define	param_lp_asym_pause	nd_params[PARAM_LP_ASYM_PAUSE_CAP].ndp_val
997 #define	param_lp_1000fdx	nd_params[PARAM_LP_1000FDX_CAP].ndp_val
998 #define	param_lp_1000hdx	nd_params[PARAM_LP_1000HDX_CAP].ndp_val
999 #define	param_lp_100fdx		nd_params[PARAM_LP_100FDX_CAP].ndp_val
1000 #define	param_lp_100hdx		nd_params[PARAM_LP_100HDX_CAP].ndp_val
1001 #define	param_lp_10fdx		nd_params[PARAM_LP_10FDX_CAP].ndp_val
1002 #define	param_lp_10hdx		nd_params[PARAM_LP_10HDX_CAP].ndp_val
1003 
1004 #define	param_link_up		nd_params[PARAM_LINK_STATUS].ndp_val
1005 #define	param_link_speed	nd_params[PARAM_LINK_SPEED].ndp_val
1006 #define	param_link_duplex	nd_params[PARAM_LINK_DUPLEX].ndp_val
1007 
1008 #define	param_link_autoneg	nd_params[PARAM_LINK_AUTONEG].ndp_val
1009 #define	param_link_rx_pause	nd_params[PARAM_LINK_RX_PAUSE].ndp_val
1010 #define	param_link_tx_pause	nd_params[PARAM_LINK_TX_PAUSE].ndp_val
1011 
1012 #define	param_loop_mode		nd_params[PARAM_LOOP_MODE].ndp_val
1013 #define	param_msi_cnt		nd_params[PARAM_MSI_CNT].ndp_val
1014 #define	param_drain_max		nd_params[PARAM_DRAIN_MAX].ndp_val
1015 
1016 /*
1017  * Sync a DMA area described by a dma_area_t
1018  */
1019 #define	DMA_SYNC(area, flag)	((void) ddi_dma_sync((area).dma_hdl,	\
1020 				    (area).offset, (area).alength, (flag)))
1021 
1022 /*
1023  * Find the (kernel virtual) address of block of memory
1024  * described by a dma_area_t
1025  */
1026 #define	DMA_VPTR(area)		((area).mem_va)
1027 
1028 /*
1029  * Zero a block of memory described by a dma_area_t
1030  */
1031 #define	DMA_ZERO(area)		bzero(DMA_VPTR(area), (area).alength)
1032 
1033 /*
1034  * Next value of a cyclic index
1035  */
1036 #define	NEXT(index, limit)	((index)+1 < (limit) ? (index)+1 : 0)
1037 
1038 /*
1039  * Property lookups
1040  */
1041 #define	BGE_PROP_EXISTS(d, n)	ddi_prop_exists(DDI_DEV_T_ANY, (d),	\
1042 					DDI_PROP_DONTPASS, (n))
1043 #define	BGE_PROP_GET_INT(d, n)	ddi_prop_get_int(DDI_DEV_T_ANY, (d),	\
1044 					DDI_PROP_DONTPASS, (n), -1)
1045 
1046 /*
1047  * Copy an ethernet address
1048  */
1049 #define	ethaddr_copy(src, dst)	bcopy((src), (dst), ETHERADDRL)
1050 
1051 /*
1052  * Endian swap
1053  */
1054 /* BEGIN CSTYLED */
1055 #define BGE_BSWAP_32(x)		((((x) & 0xff000000) >> 24)  |		\
1056                                  (((x) & 0x00ff0000) >> 8)   |		\
1057                                  (((x) & 0x0000ff00) << 8)   |		\
1058                                  (((x) & 0x000000ff) << 24))
1059 /* END CSTYLED */
1060 
1061 /*
1062  * Marker value placed at the end of the driver's state
1063  */
1064 #define	BGE_GUARD		0x1919306009031802
1065 
1066 /*
1067  * Bit flags in the 'debug' word ...
1068  */
1069 #define	BGE_DBG_STOP		0x00000001	/* early debug_enter()	*/
1070 #define	BGE_DBG_TRACE		0x00000002	/* general flow tracing	*/
1071 
1072 #define	BGE_DBG_REGS		0x00000010	/* low-level accesses	*/
1073 #define	BGE_DBG_MII		0x00000020	/* low-level MII access	*/
1074 #define	BGE_DBG_SEEPROM		0x00000040	/* low-level SEEPROM IO	*/
1075 #define	BGE_DBG_CHIP		0x00000080	/* low(ish)-level code	*/
1076 
1077 #define	BGE_DBG_RECV		0x00000100	/* receive-side code	*/
1078 #define	BGE_DBG_SEND		0x00000200	/* packet-send code	*/
1079 
1080 #define	BGE_DBG_INT		0x00001000	/* interrupt handler	*/
1081 #define	BGE_DBG_FACT		0x00002000	/* factotum (softint)	*/
1082 
1083 #define	BGE_DBG_PHY		0x00010000	/* Copper PHY code	*/
1084 #define	BGE_DBG_SERDES		0x00020000	/* SerDes code		*/
1085 #define	BGE_DBG_PHYS		0x00040000	/* Physical layer code	*/
1086 #define	BGE_DBG_LINK		0x00080000	/* Link status check	*/
1087 
1088 #define	BGE_DBG_INIT		0x00100000	/* initialisation	*/
1089 #define	BGE_DBG_NEMO		0x00200000	/* nemo interaction	*/
1090 #define	BGE_DBG_ADDR		0x00400000	/* address-setting code	*/
1091 #define	BGE_DBG_STATS		0x00800000	/* statistics		*/
1092 
1093 #define	BGE_DBG_IOCTL		0x01000000	/* ioctl handling	*/
1094 #define	BGE_DBG_LOOP		0x02000000	/* loopback ioctl code	*/
1095 #define	BGE_DBG_PPIO		0x04000000	/* Peek/poke ioctls	*/
1096 #define	BGE_DBG_BADIOC		0x08000000	/* unknown ioctls	*/
1097 
1098 #define	BGE_DBG_MCTL		0x10000000	/* mctl (csum) code	*/
1099 #define	BGE_DBG_NDD		0x20000000	/* NDD operations	*/
1100 
1101 /*
1102  * Debugging ...
1103  */
1104 #ifdef	DEBUG
1105 #define	BGE_DEBUGGING		1
1106 #else
1107 #define	BGE_DEBUGGING		0
1108 #endif	/* DEBUG */
1109 
1110 
1111 /*
1112  * 'Do-if-debugging' macro.  The parameter <command> should be one or more
1113  * C statements (but without the *final* semicolon), which will either be
1114  * compiled inline or completely ignored, depending on the BGE_DEBUGGING
1115  * compile-time flag.
1116  *
1117  * You should get a compile-time error (at least on a DEBUG build) if
1118  * your statement isn't actually a statement, rather than unexpected
1119  * run-time behaviour caused by unintended matching of if-then-elses etc.
1120  *
1121  * Note that the BGE_DDB() macro itself can only be used as a statement,
1122  * not an expression, and should always be followed by a semicolon.
1123  */
1124 #if	BGE_DEBUGGING
1125 #define	BGE_DDB(command)	do {					\
1126 					{ command; }			\
1127 					_NOTE(CONSTANTCONDITION)	\
1128 				} while (0)
1129 #else 	/* BGE_DEBUGGING */
1130 #define	BGE_DDB(command)	do {					\
1131 					{ _NOTE(EMPTY); }		\
1132 					_NOTE(CONSTANTCONDITION)	\
1133 				} while (0)
1134 #endif	/* BGE_DEBUGGING */
1135 
1136 /*
1137  * 'Internal' macros used to construct the TRACE/DEBUG macros below.
1138  * These provide the primitive conditional-call capability required.
1139  * Note: the parameter <args> is a parenthesised list of the actual
1140  * printf-style arguments to be passed to the debug function ...
1141  */
1142 #define	BGE_XDB(b, w, f, args)	BGE_DDB(if ((b) & (w)) f args)
1143 #define	BGE_GDB(b, args)	BGE_XDB(b, bge_debug, (*bge_gdb()), args)
1144 #define	BGE_LDB(b, args)	BGE_XDB(b, bgep->debug, (*bge_db(bgep)), args)
1145 #define	BGE_CDB(f, args)	BGE_XDB(BGE_DBG, bgep->debug, f, args)
1146 
1147 /*
1148  * Conditional-print macros.
1149  *
1150  * Define BGE_DBG to be the relevant member of the set of BGE_DBG_* values
1151  * above before using the BGE_GDEBUG() or BGE_DEBUG() macros.  The 'G'
1152  * versions look at the Global debug flag word (bge_debug); the non-G
1153  * versions look in the per-instance data (bgep->debug) and so require a
1154  * variable called 'bgep' to be in scope (and initialised!) before use.
1155  *
1156  * You could redefine BGE_TRC too if you really need two different
1157  * flavours of debugging output in the same area of code, but I don't
1158  * really recommend it.
1159  *
1160  * Note: the parameter <args> is a parenthesised list of the actual
1161  * arguments to be passed to the debug function, usually a printf-style
1162  * format string and corresponding values to be formatted.
1163  */
1164 
1165 #define	BGE_TRC			BGE_DBG_TRACE	/* default 'trace' bit	*/
1166 #define	BGE_GTRACE(args)	BGE_GDB(BGE_TRC, args)
1167 #define	BGE_GDEBUG(args)	BGE_GDB(BGE_DBG, args)
1168 #define	BGE_TRACE(args)		BGE_LDB(BGE_TRC, args)
1169 #define	BGE_DEBUG(args)		BGE_LDB(BGE_DBG, args)
1170 
1171 /*
1172  * Debug-only action macros
1173  */
1174 #define	BGE_BRKPT(bgep, s)	BGE_DDB(bge_dbg_enter(bgep, s))
1175 #define	BGE_MARK(bgep)		BGE_DDB(bge_led_mark(bgep))
1176 #define	BGE_PCICHK(bgep)	BGE_DDB(bge_pci_check(bgep))
1177 #define	BGE_PKTDUMP(args)	BGE_DDB(bge_pkt_dump args)
1178 #define	BGE_REPORT(args)	BGE_DDB(bge_log args)
1179 
1180 /*
1181  * Inter-source-file linkage ...
1182  */
1183 
1184 /* bge_chip.c */
1185 uint16_t bge_mii_get16(bge_t *bgep, bge_regno_t regno);
1186 void bge_mii_put16(bge_t *bgep, bge_regno_t regno, uint16_t value);
1187 uint32_t bge_reg_get32(bge_t *bgep, bge_regno_t regno);
1188 void bge_reg_put32(bge_t *bgep, bge_regno_t regno, uint32_t value);
1189 void bge_reg_set32(bge_t *bgep, bge_regno_t regno, uint32_t bits);
1190 void bge_reg_clr32(bge_t *bgep, bge_regno_t regno, uint32_t bits);
1191 void bge_mbx_put(bge_t *bgep, bge_regno_t regno, uint64_t value);
1192 void bge_chip_cfg_init(bge_t *bgep, chip_id_t *cidp, boolean_t enable_dma);
1193 int bge_chip_id_init(bge_t *bgep);
1194 int bge_chip_start(bge_t *bgep, boolean_t reset_phy);
1195 void bge_chip_stop(bge_t *bgep, boolean_t fault);
1196 #ifdef BGE_IPMI_ASF
1197 void bge_nic_put32(bge_t *bgep, bge_regno_t addr, uint32_t data);
1198 #pragma	inline(bge_nic_put32)
1199 uint32_t bge_nic_read32(bge_t *bgep, bge_regno_t addr);
1200 void bge_ind_put32(bge_t *bgep, bge_regno_t regno, uint32_t val);
1201 #pragma inline(bge_ind_put32)
1202 uint32_t bge_ind_get32(bge_t *bgep, bge_regno_t regno);
1203 #pragma inline(bge_ind_get32)
1204 void bge_asf_update_status(bge_t *bgep);
1205 void bge_asf_heartbeat(void *bgep);
1206 void bge_asf_stop_timer(bge_t *bgep);
1207 void bge_asf_get_config(bge_t *bgep);
1208 void bge_asf_pre_reset_operations(bge_t *bgep, uint32_t mode);
1209 void bge_asf_post_reset_old_mode(bge_t *bgep, uint32_t mode);
1210 void bge_asf_post_reset_new_mode(bge_t *bgep, uint32_t mode);
1211 int bge_chip_reset(bge_t *bgep, boolean_t enable_dma, uint_t asf_mode);
1212 int bge_chip_sync(bge_t *bgep, boolean_t asf_keeplive);
1213 #else
1214 int bge_chip_reset(bge_t *bgep, boolean_t enable_dma);
1215 int bge_chip_sync(bge_t *bgep);
1216 #endif
1217 void bge_chip_blank(void *arg, time_t ticks, uint_t count);
1218 uint_t bge_chip_factotum(caddr_t arg);
1219 void bge_chip_cyclic(void *arg);
1220 enum ioc_reply bge_chip_ioctl(bge_t *bgep, queue_t *wq, mblk_t *mp,
1221 	struct iocblk *iocp);
1222 uint_t bge_intr(caddr_t arg1, caddr_t arg2);
1223 extern uint32_t bge_rx_ticks_norm;
1224 extern uint32_t bge_tx_ticks_norm;
1225 extern uint32_t bge_rx_count_norm;
1226 extern uint32_t bge_tx_count_norm;
1227 extern boolean_t bge_jumbo_enable;
1228 extern boolean_t bge_relaxed_ordering;
1229 
1230 void   bge_chip_msi_trig(bge_t *bgep);
1231 
1232 /* bge_kstats.c */
1233 void bge_init_kstats(bge_t *bgep, int instance);
1234 void bge_fini_kstats(bge_t *bgep);
1235 int bge_m_stat(void *arg, uint_t stat, uint64_t *val);
1236 
1237 /* bge_log.c */
1238 #if	BGE_DEBUGGING
1239 void (*bge_db(bge_t *bgep))(const char *fmt, ...);
1240 void (*bge_gdb(void))(const char *fmt, ...);
1241 void bge_pkt_dump(bge_t *bgep, bge_rbd_t *hbp, sw_rbd_t *sdp, const char *msg);
1242 void bge_dbg_enter(bge_t *bgep, const char *msg);
1243 #endif	/* BGE_DEBUGGING */
1244 void bge_problem(bge_t *bgep, const char *fmt, ...);
1245 void bge_log(bge_t *bgep, const char *fmt, ...);
1246 void bge_error(bge_t *bgep, const char *fmt, ...);
1247 void bge_fm_ereport(bge_t *bgep, char *detail);
1248 extern kmutex_t bge_log_mutex[1];
1249 extern uint32_t bge_debug;
1250 
1251 /* bge_main.c */
1252 int bge_restart(bge_t *bgep, boolean_t reset_phy);
1253 int bge_check_acc_handle(bge_t *bgep, ddi_acc_handle_t handle);
1254 int bge_check_dma_handle(bge_t *bgep, ddi_dma_handle_t handle);
1255 void bge_init_rings(bge_t *bgep);
1256 void bge_fini_rings(bge_t *bgep);
1257 bge_queue_item_t *bge_alloc_txbuf_array(bge_t *bgep, send_ring_t *srp);
1258 void bge_free_txbuf_arrays(send_ring_t *srp);
1259 int bge_alloc_bufs(bge_t *bgep);
1260 void bge_free_bufs(bge_t *bgep);
1261 void bge_intr_enable(bge_t *bgep);
1262 void bge_intr_disable(bge_t *bgep);
1263 
1264 /* bge_phys.c */
1265 int bge_phys_init(bge_t *bgep);
1266 void bge_phys_reset(bge_t *bgep);
1267 int bge_phys_idle(bge_t *bgep);
1268 int bge_phys_update(bge_t *bgep);
1269 boolean_t bge_phys_check(bge_t *bgep);
1270 
1271 /* bge_ndd.c */
1272 int bge_nd_init(bge_t *bgep);
1273 enum ioc_reply bge_nd_ioctl(bge_t *bgep, queue_t *wq, mblk_t *mp,
1274 	struct iocblk *iocp);
1275 void bge_nd_cleanup(bge_t *bgep);
1276 
1277 /* bge_recv.c */
1278 void bge_receive(bge_t *bgep, bge_status_t *bsp);
1279 
1280 /* bge_send.c */
1281 mblk_t *bge_m_tx(void *arg, mblk_t *mp);
1282 void bge_recycle(bge_t *bgep, bge_status_t *bsp);
1283 uint_t bge_send_drain(caddr_t arg);
1284 
1285 /* bge_atomic.c */
1286 uint64_t bge_atomic_reserve(uint64_t *count_p, uint64_t n);
1287 void bge_atomic_renounce(uint64_t *count_p, uint64_t n);
1288 uint64_t bge_atomic_claim(uint64_t *count_p, uint64_t limit);
1289 uint64_t bge_atomic_next(uint64_t *sp, uint64_t limit);
1290 void bge_atomic_sub64(uint64_t *count_p, uint64_t n);
1291 uint64_t bge_atomic_clr64(uint64_t *sp, uint64_t bits);
1292 uint32_t bge_atomic_shl32(uint32_t *sp, uint_t count);
1293 
1294 /*
1295  * Reset type
1296  */
1297 #define	BGE_SHUTDOWN_RESET	0
1298 #define	BGE_INIT_RESET		1
1299 #define	BGE_SUSPEND_RESET	2
1300 
1301 /* For asf_status */
1302 #define	ASF_STAT_NONE		0
1303 #define	ASF_STAT_STOP		1
1304 #define	ASF_STAT_RUN		2
1305 #define	ASF_STAT_RUN_INIT	3	/* attached but don't plumb */
1306 
1307 /* ASF modes for bge_reset() and bge_chip_reset() */
1308 #define	ASF_MODE_NONE		0	/* don't launch asf	 */
1309 #define	ASF_MODE_SHUTDOWN	1	/* asf shutdown mode	 */
1310 #define	ASF_MODE_INIT		2	/* asf init mode	 */
1311 #define	ASF_MODE_POST_SHUTDOWN	3	/* only do post-shutdown */
1312 #define	ASF_MODE_POST_INIT	4	/* only do post-init	 */
1313 
1314 #define	BGE_ASF_HEARTBEAT_INTERVAL		1500000
1315 
1316 #ifdef __cplusplus
1317 }
1318 #endif
1319 
1320 #endif	/* _BGE_IMPL_H */
1321