xref: /titanic_52/usr/src/uts/sun4u/starfire/sys/idn.h (revision 1cb6af97c6f66f456d4f726ef056e1ebc0f73305)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  *
26  * Inter-Domain Network
27  */
28 
29 #ifndef	_SYS_IDN_H
30 #define	_SYS_IDN_H
31 
32 #pragma ident	"%Z%%M%	%I%	%E% SMI"
33 
34 #ifndef _ASM
35 
36 #ifdef _KERNEL
37 
38 #include <sys/note.h>
39 
40 #include <sys/cmn_err.h>
41 #include <sys/dditypes.h>
42 #include <sys/stream.h>
43 #include <sys/machsystm.h>
44 #include <sys/ethernet.h>
45 #include <sys/dlpi.h>
46 #include <sys/time.h>
47 #include <sys/kmem.h>
48 #include <sys/atomic.h>
49 #include <sys/cpuvar.h>
50 
51 #include <sys/idn_sigb.h>
52 #include <sys/idn_smr.h>
53 #endif /* _KERNEL */
54 
55 #ifdef	__cplusplus
56 extern "C" {
57 #endif
58 
59 typedef const char * const	procname_t;
60 
61 #define	MB2B(m)		((size_t)(m) << 20)	/* MBytes to Bytes */
62 #define	B2MB(b)		((uint_t)((b) >> 20))	/* Bytes to MBytes */
63 
64 #ifdef _KERNEL
65 
66 /*
67  * IDN_PROP_SMRSIZE	- User specified size in MBytes.
68  * IDN_PROP_SMRADDR	- OBP's internal physical address of the region.
69  *
70  *	OBP properties of "memory" node that define the SMR space.
71  */
72 #define	IDN_PROP_SMRSIZE	"idn-smr-size"
73 #define	IDN_PROP_SMRADDR	"idn-smr-addr"
74 
75 /*
76  * IDN_AWOLMSG_INTERVAL	(driver.conf)
77  *
78  *	Number of seconds between AWOL messages on a per-domain basis.
79  *	The purpose is to throttle the frequency at which these
80  *	messages appear.
81  *
82  * IDN_MSGWAIT_NEGO	(driver.conf)
83  * IDN_MSGWAIT_CFG
84  * IDN_MSGWAIT_CON
85  * IDN_MSGWAIT_FIN
86  * IDN_MSGWAIT_CMD
87  * IDN_MSGWAIT_DATA
88  *
89  *	Number of seconds to wait for response to respective
90  *	message type.
91  *
92  * IDN_RETRYFREQ_NEGO	(driver.conf)
93  * IDN_RETRYFREQ_CON
94  * IDN_RETRYFREQ_FIN
95  *
96  *	Number of seconds to wait between retries of the respective
97  *	message type.
98  *
99  * IDN_SMR_ALIGN	(not tunable)
100  *
101  *	The hardware registers that describe the SMR are based on a 64K
102  *	aligned physical address.
103  *
104  * IDN_SMR_SIZE		(OBP [only])
105  *
106  *	Total size of the SMR (Shared Memory Region) in bytes.
107  *
108  * IDN_NWR_SIZE		(driver.conf)
109  *
110  *	Total size of the NWR (NetWork Region) portion of the SMR which
111  *	is actually used to support network activity.  The NWR is managed
112  *	as simply a pool of I/O buffers which are distributed by the
113  *	Master domain to the Slaves for the purpose of communicating
114  *	between each other.  If not set then the entire SMR is used
115  *	as the NWR.
116  *	Req: IDN_NWR_SIZE <= IDN_SMR_SIZE
117  *
118  * IDN_SMR_BUFSIZE	(driver.conf)
119  *
120  *	Size of individual SMR buffers.  The SMR is divided into chunks
121  *	of IDN_SMR_BUFSIZE bytes.  The IDN_MTU is based on this size
122  *	and thus the IDN_SMR_BUFSIZE should be chosen based on performance.
123  *
124  * IDN_DATA_SIZE	(NOT tunable)
125  *
126  *	Portion of IDN_SMR_BUFSIZE that can contain raw non-IDN dependent
127  *	data.  We subtract IDN_ALIGNSIZE bytes to allow for fast bcopy
128  *	alignment.
129  *	Req: IDN_DATA_SIZE <=
130  *		(IDN_SMR_BUFSIZE - sizeof (smr_pkthdr_t) - IDN_ALIGNSIZE)
131  *
132  * IDN_MTU		(indirectly tunable via IDN_SMR_BUFSIZE)
133  *
134  * 	This size represents the portion of an SMR I/O buffers that can
135  *	contain (ethernet headerless) data.
136  *	Req: IDN_MTU <= IDN_DATA_SIZE - sizeof (ether_header)
137  *
138  * IDN_WINDOW_MAX	(driver.conf)
139  *
140  *	Maximum number of outstanding packets that are allowed per
141  *	domain.  If this value is exceeded for a particular domain
142  *	no further I/Os will be transmitted to that domain until it
143  *	has acknowledged enough of the previous transmission to bring
144  *	down its outstanding I/O count (idn_domain.dio) below this
145  *	value.  In addition, if this value is exceeded then a Timer
146  *	is scheduled to check for any response from the remote domain.
147  *
148  * IDN_WINDOW_INCR	(driver.conf)
149  *
150  *	As more channels/nets are activated on a particular domain
151  *	the greater the number of possible outstanding data packets
152  *	that can be outstanding to a given domain.  Since this natural
153  *	occurence can result in the outstanding-I/O count to a given
154  *	domain to increase we run the risk of dropping into the
155  *	IDN_WINDOW_MAX region even though the receiving domain
156  *	may be fine with handling the load.  In order to compensate
157  *	for this increased activity and to not incur unjustified
158  *	slips into the IDN_WINDOW_MAX region, the IDN_WINDOW_MAX
159  *	value is adjusted by IDN_WINDOW_INCR for each channel/net
160  *	that is activated for a given domain.
161  *
162  * IDN_WINDOW_EMAX	(not tunable)
163  *
164  *	The effective value of IDN_WINDOW_MAX once it has
165  *	been adjusted by IDN_WINDOW_INCR.
166  *
167  * IDN_RECLAIM_MIN	(driver.conf)
168  *
169  *	Minimum number of outstanding packets that our allowed
170  *	before subsequent sends will attempt to reclaim some number
171  *	of outstanding data packets.
172  *
173  * IDN_RECLAIM_MAX	(driver.conf)
174  *	This value represents the maximum number of outstanding
175  *	packets we will try to reclaim during a send once we've
176  *	passed the IDN_RECLAIM_MIN boundary.
177  *
178  * IDN_MODUNLOADABLE	(ndd)
179  *
180  *	By default the IDN driver is unloadable.  Setting this
181  *	variable will allow the IDN driver to be unloaded provided
182  *	it's not in use.
183  *
184  * IDN_LOWAT/IDN_HIWAT	(driver.conf)
185  *
186  *	Low/High water marks for the STREAM interface to IDN.
187  *
188  * IDN_MBOX_PER_NET	(driver.conf)
189  *
190  *	Number of mailbox entries that are allocated per channel/net.
191  *	This value effectively represents the amount of outstanding
192  *	activity that can reside at a domain.  Increasing this value
193  *	allows more packets to be in transit to a domain, however
194  *	at some point there are diminishing returns since the receiver
195  *	can only consume packets so fast.
196  *
197  * IDN_MAX_NETS		(driver.conf)
198  *
199  *	Maximum number of network interfaces (channels) that IDN
200  *	is currently configured to allow.  The absolute max is
201  *	IDN_MAXMAX_NETS.  We don't automatically default IDN_MAX_NETS
202  *	to IDN_MAXMAX_NETS because it would mean wasted space in
203  *	the mailbox region having to reserve mailboxes that will
204  *	very likely go unused.  The smaller this value the fewer
205  *	the number of mailboxes in the SMR and thus the greater the
206  *	number of possible I/O buffers available.
207  *	Req: IDN_MAX_NETS <= IDN_MAXMAX_NETS
208  *
209  * IDN_CHECKSUM		(driver.conf)
210  *
211  *	If enabled, IDN validates the smr_pkthdr_t of incoming packets
212  *	via a checksum, and calculates the checksum for outgoing packets.
213  *	Only the first 3 fields of smr_pkthdr_t are checksummed and
214  *	must be set to their expected values prior to calculating the
215  *	checksum.  Turned OFF by default when compiled DEBUG.
216  *
217  * IDN_SMR_MAXSIZE	(not tunable)
218  *
219  *	The absolute maximum size of the SMR region that we'll allow.
220  *	Note that the virtual address space comes out kernelmap.
221  */
222 #define	IDN_AWOLMSG_INTERVAL	60		/* seconds */
223 #define	IDN_MSGWAIT_NEGO	20		/* seconds */
224 #define	IDN_MSGWAIT_CFG		40
225 #define	IDN_MSGWAIT_CON		20
226 #define	IDN_MSGWAIT_FIN		40
227 #define	IDN_MSGWAIT_CMD		40
228 #define	IDN_MSGWAIT_DATA	30
229 #define	IDN_RETRYFREQ_NEGO	2
230 #define	IDN_RETRYFREQ_CON	2
231 #define	IDN_RETRYFREQ_FIN	3
232 
233 #define	IDN_SMR_BUFSIZE_MIN	512
234 #define	IDN_SMR_BUFSIZE_MAX	(512*1024)
235 #define	IDN_SMR_BUFSIZE_DEF	(16*1024)
236 
237 #define	IDN_SMR_SHIFT		(16)
238 #define	IDN_SMR_ALIGN		(1 << IDN_SMR_SHIFT)	/* 64K */
239 #define	IDN_SMR_SIZE		idn_smr_size
240 #define	IDN_NWR_SIZE		idn_nwr_size
241 #define	IDN_SMR_BUFSIZE		idn_smr_bufsize
242 #define	IDN_DATA_SIZE		(IDN_SMR_BUFSIZE \
243 				    - sizeof (smr_pkthdr_t) \
244 				    - IDN_ALIGNSIZE)
245 #define	IDN_MTU			(IDN_DATA_SIZE - sizeof (struct ether_header))
246 #define	IDN_WINDOW_MAX		idn_window_max
247 #define	IDN_WINDOW_INCR		idn_window_incr
248 #define	IDN_WINDOW_EMAX		idn_window_emax
249 #define	IDN_RECLAIM_MIN		idn_reclaim_min
250 #define	IDN_RECLAIM_MAX		idn_reclaim_max
251 #define	IDN_MODUNLOADABLE	idn_modunloadable
252 #define	IDN_LOWAT		idn_lowat
253 #define	IDN_HIWAT		idn_hiwat
254 #define	IDN_MBOX_PER_NET	idn_mbox_per_net
255 #define	IDN_MAX_NETS		idn_max_nets
256 #define	IDN_CHECKSUM		idn_checksum
257 #define	IDN_SMR_MAXSIZE		96
258 #define	_IDN_SMR_SIZE		32			/* 32M */
259 #define	_IDN_NWR_SIZE		_IDN_SMR_SIZE		/* 32M */
260 #define	_IDN_SMR_BUFSIZE	(16 * 1024)		/* 16K */
261 
262 
263 #define	IDN_TUNEVAR_NAME(v)	(*(char **)((ulong_t)&(v)+(sizeof (ulong_t))))
264 #define	IDN_TUNEVAR_VALUE(v)	(v)
265 
266 /*
267  * History structure to support problem analysis.
268  */
269 #define	IDN_HISTORY_NUM		1024
270 #define	IDN_HISTORY_LOG(op, d0, d1, d2) \
271 	if (idn_history) { \
272 		mutex_enter(&idnhlog.h_mutex); \
273 		idnhlog.h_log[idnhlog.h_index].e_time = TIMESTAMP(); \
274 		idnhlog.h_log[idnhlog.h_index].e_op = (ushort_t)(op); \
275 		idnhlog.h_log[idnhlog.h_index].e_data[0] = (ushort_t)(d0); \
276 		idnhlog.h_log[idnhlog.h_index].e_data[1] = (ushort_t)(d1); \
277 		idnhlog.h_log[idnhlog.h_index].e_data[2] = (ushort_t)(d2); \
278 		idnhlog.h_index++; \
279 		idnhlog.h_index &= (IDN_HISTORY_NUM - 1); \
280 		mutex_exit(&idnhlog.h_mutex); \
281 	}
282 
283 #define	IDNH_GSTATE	0x0001	/* d0=gstate, d1=, d2= */
284 #define	IDNH_DSTATE	0x0002	/* d0=domid, d1=dstate, d2=cpuid */
285 #define	IDNH_AWOL	0x0003	/* d0=domid, d1=dstate, d2=cpuid */
286 #define	IDNH_MASTERID	0x0004	/* d0=masterid, d1=oldid, d2= */
287 #define	IDNH_NEGO	0x0005	/* d0=domid, d1=ds_trans_on, d2=ds_connected */
288 #define	IDNH_FIN	0x0006	/* d0=domid, d1=finstate, d2= */
289 #define	IDNH_RELINK	0x0007	/* d0=domid, d1=dstate, d2=ds_relink */
290 
291 struct idn_h_entry {
292 	hrtime_t	e_time;
293 	ushort_t	e_op;
294 	ushort_t	e_data[3];
295 };
296 
297 struct idn_history {
298 	kmutex_t		h_mutex;
299 	int			h_index;
300 	struct idn_h_entry	h_log[IDN_HISTORY_NUM];
301 };
302 #endif /* _KERNEL */
303 
304 /*
305  * IDN_SIGBPIL - Interrupt level at which IDN driver
306  *		 wakes up idn_sigbhandler_thread
307  */
308 #define	IDN_SIGBPIL	PIL_3
309 
310 /*
311  * Definition of sigbintr.sb_busy values which
312  * represents state of idn_sigbhandler.
313  */
314 #define	IDNSIGB_NOTREADY	((uchar_t)0)
315 #define	IDNSIGB_INACTIVE	((uchar_t)1)
316 #define	IDNSIGB_STARTED		((uchar_t)2)
317 #define	IDNSIGB_ACTIVE		((uchar_t)3)
318 #define	IDNSIGB_DIE		((uchar_t)4)
319 
320 /*
321  * Some Xfire based macros that assume 4 cpus per board.
322  */
323 #define	CPUID_TO_BOARDID(c)	((c) >> 2)
324 #define	MAX_CPU_PER_BRD		4
325 #define	CPUSET_TO_BOARDSET(cset, bset) \
326 	{ \
327 		register int	c, b; \
328 		(bset) = 0; \
329 		for (b = 0; b < MAX_BOARDS; b++) \
330 			for (c = 0; c < MAX_CPU_PER_BRD; c++) \
331 				if (CPU_IN_SET((cset), \
332 						(b * MAX_CPU_PER_BRD) + c)) \
333 					(bset) |= 1 << b; \
334 	}
335 
336 /*
337  * Macros to manipulate boardset and domainset masks.
338  */
339 typedef ushort_t boardset_t;	/* assumes max of 16 boards */
340 typedef ushort_t domainset_t;	/* assumes max of 16 domains */
341 
342 #define	BOARDSET(brd)		((boardset_t)(1 << (brd)))
343 #define	BOARDSET_ALL		((boardset_t)~0)
344 #define	BOARD_IN_SET(set, brd)	((set) & BOARDSET(brd))
345 #define	BOARDSET_ADD(set, brd)	((set) |= BOARDSET(brd))
346 #define	BOARDSET_DEL(set, brd)	((set) &= ~BOARDSET(brd))
347 #define	DOMAINSET(d)		((domainset_t)1 << (d))
348 #define	DOMAINSET_ALL		((domainset_t)~0)
349 #define	DOMAIN_IN_SET(s, d)	((s) & DOMAINSET(d))
350 #define	DOMAINSET_ADD(s, d)	((s) |= DOMAINSET(d))
351 #define	DOMAINSET_DEL(s, d)	((s) &= ~DOMAINSET(d))
352 
353 /*
354  * PFN_TO_SMADDR macro converts a PFN to a IDN_SMR_ALIGN'ed
355  * address suitable for the CIC bar/lar registers.
356  */
357 #if (IDN_SMR_SHIFT <= MMU_PAGESHIFT)
358 #define	PFN_TO_SMADDR(pfn)	((pfn) << (MMU_PAGESHIFT - IDN_SMR_SHIFT))
359 #else
360 #define	PFN_TO_SMADDR(pfn)	((pfn) >> (IDN_SMR_SHIFT - MMU_PAGESHIFT))
361 #endif
362 
363 /*
364  * Translate a physical address to a unique domain identifier.
365  * IMPORTANT - Assumes each board's memory is configured on a 8GB
366  *	       boundary. PA(8G) = PFN(1M).
367  */
368 #define	MEM8G_SHIFT			33	/* (1 << 33) == 8G */
369 #define	PADDR_TO_DOMAINID(paddr)	((int)((paddr) >> MEM8G_SHIFT) & 0xf)
370 
371 #define	VALID_NWROFFSET(off, align)	\
372 				(((uint_t)(off) >= 0) && \
373 				((size_t)(off) < MB2B(IDN_NWR_SIZE)) && \
374 				!((uint_t)(off) & ((align) - 1)))
375 #define	VALID_NWRADDR(addr, align) \
376 		(((caddr_t)(addr) >= idn.smr.vaddr) && \
377 		VALID_NWROFFSET(((caddr_t)(addr) - idn.smr.vaddr), (align)))
378 #define	VALID_DOMAINID(d)	(((d) >= 0) && ((d) < MAX_DOMAINS))
379 #define	VALID_CPUID(c)		(((c) >= 0) && ((c) < NCPU))
380 #define	VALID_CHANNEL(c)	(((int)(c) >= 0) && ((int)(c) < IDN_MAX_NETS))
381 
382 /*
383  * The following are bit values of idn_debug, currently
384  * only useful if compiled with DEBUG.
385  */
386 #ifdef DEBUG
387 #define	STRING(sss)		char sss[20]
388 #define	INUM2STR(mm, ss)	inum2str((mm), (ss))
389 
390 #define	IDNDBG_XDC	0x00000001
391 #define	IDNDBG_XF	0x00000002
392 #define	IDNDBG_REGS	0x00000004
393 #define	IDNDBG_SMR	0x00000008
394 #define	IDNDBG_PROTO	0x00000010
395 #define	IDNDBG_STR	0x00000020
396 #define	IDNDBG_DRV	0x00000040
397 #define	IDNDBG_DATA	0x00000080
398 #define	IDNDBG_STATE	0x00000100
399 #define	IDNDBG_DLPI	0x00000200
400 #define	IDNDBG_KERN	0x00000400
401 #define	IDNDBG_ALLOC	0x00000800
402 #define	IDNDBG_REMAP	0x00001000
403 #define	IDNDBG_TIMER	0x00002000
404 #define	IDNDBG_CHAN	0x00004000
405 #define	IDNDBG_AWOL	0x00008000
406 #define	IDNDBG_SYNC	0x00010000
407 #define	_IDNDBG_UNUSED0	0x00020000
408 #define	IDNDBG_HITLIST	0x00040000
409 #define	IDNDBG_XMON	0x00080000
410 #define	IDNDBG_TEST	0x80000000
411 #define	IDNDBG_ALL	((uint_t)-1)
412 
413 #define	PR_ALL		if (idn_debug)	printf
414 #define	PR_XDC		if (idn_debug & IDNDBG_XDC)	printf
415 #define	PR_XF		if (idn_debug & IDNDBG_XF)	printf
416 #define	PR_REGS		if (idn_debug & IDNDBG_REGS)	printf
417 #define	PR_SMR		if (idn_debug & IDNDBG_SMR)	printf
418 #define	PR_PROTO	if (idn_debug & IDNDBG_PROTO)	printf
419 #define	PR_STR		if (idn_debug & IDNDBG_STR)	printf
420 #define	PR_DRV		if (idn_debug & IDNDBG_DRV)	printf
421 #define	PR_DATA		if (idn_debug & IDNDBG_DATA)	printf
422 #define	PR_STATE	if (idn_debug & IDNDBG_STATE)	printf
423 #define	PR_DLPI		if (idn_debug & IDNDBG_DLPI)	printf
424 #define	PR_KERN		if (idn_debug & IDNDBG_KERN)	printf
425 #define	PR_ALLOC	if (idn_debug & IDNDBG_ALLOC)	printf
426 #define	PR_REMAP	if (idn_debug & (IDNDBG_SMR|IDNDBG_REMAP))	printf
427 #define	PR_TIMER	if (idn_debug & IDNDBG_TIMER)	printf
428 #define	PR_CHAN		if (idn_debug & IDNDBG_CHAN)	printf
429 #define	PR_AWOL		if (idn_debug & (IDNDBG_PROTO|IDNDBG_AWOL))	printf
430 #define	PR_SYNC		if (idn_debug & IDNDBG_SYNC)	printf
431 #define	_PR_UNUSED0	if (idn_debug & _IDNDBG_UNUSED0)	printf
432 #define	PR_HITLIST	if (idn_debug & IDNDBG_HITLIST)	printf
433 #define	PR_XMON		if (idn_debug & IDNDBG_XMON)	printf
434 #define	PR_TEST		if (idn_debug & IDNDBG_TEST)	printf
435 #else
436 #define	STRING(sss)	char *sss = ""
437 #define	INUM2STR(mm, ss)
438 
439 #define	PR_ALL		if (0) printf
440 #define	PR_XDC		PR_ALL
441 #define	PR_XF		PR_ALL
442 #define	PR_REGS		PR_ALL
443 #define	PR_SMR		PR_ALL
444 #define	PR_PROTO	PR_ALL
445 #define	PR_STR		PR_ALL
446 #define	PR_DRV		PR_ALL
447 #define	PR_DATA		PR_ALL
448 #define	PR_STATE	PR_ALL
449 #define	PR_DLPI		PR_ALL
450 #define	PR_KERN		PR_ALL
451 #define	PR_ALLOC	PR_ALL
452 #define	PR_REMAP	PR_ALL
453 #define	PR_TIMER	PR_ALL
454 #define	PR_CHAN		PR_ALL
455 #define	PR_AWOL		PR_ALL
456 #define	PR_SYNC		PR_ALL
457 #define	PR_SNOOP	PR_ALL
458 #define	PR_HITLIST	PR_ALL
459 #define	PR_XMON		PR_ALL
460 #define	PR_TEST		PR_ALL
461 #endif /* DEBUG */
462 
463 #ifdef _KERNEL
464 /*
465  * IDN drivers fields.
466  *
467  * IDNMINPSZ	Minimum packet size the IDN supports.
468  *
469  * IDNMAXPSZ 	Maximum packet size that IDN supports from upper
470  *		layers.  Is equal to IDN_MTU + ether_header.  Note
471  *		that the IDN driver could support larger packets
472  *		however the infrastructure to support fragmentation
473  *		does not (and should not) exist with respect to
474  *		ethernet packet types.
475  */
476 #ifdef DEBUG
477 #define	IDNDESC		"Inter-Domain Network (DEBUG)"
478 #else
479 #define	IDNDESC		"Inter-Domain Network"
480 #endif /* DEBUG */
481 
482 #define	IDNIDNUM		8264
483 #define	IDNNAME			"idn"
484 #define	IDNMINPSZ		0	/* set at idnopen() */
485 #define	IDNMAXPSZ		0	/* set at idnopen() */
486 
487 #endif /* _KERNEL */
488 
489 /*
490  * IDN Global States.
491  */
492 typedef enum {
493 /*  0 */	IDNGS_OFFLINE = 0,	/* idle */
494 /*  1 */	IDNGS_CONNECT,		/* connecting initial domain */
495 /*  2 */	IDNGS_ONLINE,		/* master selected */
496 /*  3 */	IDNGS_DISCONNECT,	/* local is unlinking */
497 /*  4 */	IDNGS_RECONFIG,		/* selecting new master */
498 /*  5 */	_IDNGS_UNUNSED5,
499 /*  6 */	_IDNGS_UNUNSED6,
500 /*  7 */	_IDNGS_UNUNSED7,
501 /*  8 */	_IDNGS_UNUNSED8,
502 /*  9 */	_IDNGS_UNUNSED9,
503 /* 10 */	IDNGS_IGNORE		/* ignore requests (fault injection) */
504 } idn_gstate_t;
505 
506 #ifdef _KERNEL
507 
508 #define	TIMESTAMP()	(gethrtime() / 1000000ull)
509 
510 /*
511  * Spaced defined in:
512  *	sigblkp[cpu0.cpu_id]->sigb_idn.reserved1.
513  */
514 #define	IDNSB_GSTATE_NEW	0
515 #define	IDNSB_GSTATE_OLD	1
516 #define	IDNSB_MASTERCPU		2
517 #define	IDNSB_RESERVED		3
518 
519 #define	IDNSB_HWCHKPT_MAX	4
520 
521 #define	IDNSB_SIZE		72
522 /*
523  * This structure gets overlay onto:
524  *	sigblkp[cpu0.cpu_id]->sigb_idn.reserved1.
525  *
526  * This structure must be exactly IDNSB_SIZE bytes.
527  */
528 typedef struct idnsb {
529 	uchar_t		id_gstate;
530 	uchar_t		id_pgstate;
531 	uchar_t		id_master_board;
532 	uchar_t		id_pmaster_board;
533 
534 	uchar_t		reserved_DO_NOT_USE[24];	/* idnevent_t field */
535 
536 	struct {
537 		uchar_t	d_board;
538 		uchar_t	d_state;
539 	} id_status[MAX_DOMAINS];
540 	uint_t		id_hwstate;
541 	ushort_t	id_hwchkpt[IDNSB_HWCHKPT_MAX];
542 } idnsb_t;	/* sizeof = 72 (0x48) 18X bytes */
543 
544 
545 #define	IDNSB_DOMAIN_UPDATE(dp) \
546 	{ \
547 		mutex_enter(&idn.idnsb_mutex); \
548 		if (idn.idnsb) { \
549 			int	domid = (dp)->domid; \
550 			if ((dp)->dcpu == IDN_NIL_DCPU) \
551 				idn.idnsb->id_status[domid].d_board = \
552 						(uchar_t)0xff; \
553 			else if ((dp)->dvote.v.board == 0) \
554 				idn.idnsb->id_status[domid].d_board = \
555 					(uchar_t)CPUID_TO_BOARDID((dp)->dcpu); \
556 			else \
557 				idn.idnsb->id_status[domid].d_board = \
558 						(uchar_t)(dp)->dvote.v.board; \
559 			idn.idnsb->id_status[domid].d_state = \
560 				(uchar_t)(dp)->dstate; \
561 		} \
562 		mutex_exit(&idn.idnsb_mutex); \
563 	}
564 /*
565  * The following definitions and macros pertain to the
566  * id_hwstate and id_hwchkpt[] fields.
567  *
568  * id_hwstate (m = mark: 1=open, 2=close)
569  *	  0   1   2   3   4   5   6   7
570  *	---------------------------------
571  *	| m | m | m | m | XX unused XXX |
572  *	---------------------------------
573  *	  |   |   |   |
574  *	  |   |   |   +- CACHE
575  *	  |   |   +- CHAN
576  *	  |   +- LINK
577  *	  +- SMR
578  *
579  * Note that nibble 4 is used in DEBUG for noting cache
580  * flush progress through idnxf_flushall_ecache().  This
581  * will override id_hwchkpt[] since it only has room for
582  * 4 items, however the BBSRAM space is there and
583  * unofficially available :-o
584  *
585  * id_hwchkpt[0] = SMR boardset
586  * id_hwchkpt[1] = LINK boardset
587  * id_hwchkpt[2] = CHAN boardset
588  * id_hwchkpt[3] = CACHE boardset.
589  */
590 #define	IDNSB_CHKPT_SMR		0
591 #define	IDNSB_CHKPT_LINK	1
592 #define	IDNSB_CHKPT_CHAN	2
593 #define	IDNSB_CHKPT_CACHE	3
594 #define	IDNSB_CHKPT_UNUSED	4	/* This is the max you can have */
595 
596 #define	_CHKPT_MARKIT(item, mark) \
597 	{ \
598 		uint_t	mk = (((uint_t)((mark) & 0xf)) << \
599 			(((sizeof (uint_t) << 1) - 1 - (item)) << 2)); \
600 		uint_t	*sp = &idn.idnsb->id_hwstate; \
601 		ASSERT(idn.idnsb); \
602 		*sp &= ~(((uint_t)0xf) << (((sizeof (uint_t) << 1) \
603 			- 1 - (item)) << 2)); \
604 		*sp |= mk; \
605 	}
606 
607 #define	CHECKPOINT_OPENED(item, bset, mark) \
608 	{ \
609 		mutex_enter(&idn.idnsb_mutex); \
610 		if (idn.idnsb) { \
611 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
612 			_CHKPT_MARKIT((item), (mark));  \
613 			sp[item] |= ((ushort_t)(bset)); \
614 		} \
615 		mutex_exit(&idn.idnsb_mutex); \
616 	}
617 
618 #define	CHECKPOINT_CLOSED(item, bset, mark) \
619 	{ \
620 		mutex_enter(&idn.idnsb_mutex); \
621 		if (idn.idnsb) { \
622 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
623 			_CHKPT_MARKIT((item), (mark));  \
624 			sp[item] &= (ushort_t)~(bset); \
625 		} \
626 		mutex_exit(&idn.idnsb_mutex); \
627 	}
628 
629 #define	CHECKPOINT_CLEAR(item, mark) \
630 	{ \
631 		mutex_enter(&idn.idnsb_mutex); \
632 		if (idn.idnsb) { \
633 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
634 			_CHKPT_MARKIT((item), (mark));  \
635 			sp[item] = 0; \
636 		} \
637 		mutex_exit(&idn.idnsb_mutex); \
638 	}
639 #ifdef DEBUG
640 #define	CHECKPOINT_CACHE_CLEAR_DEBUG(mark) \
641 			CHECKPOINT_CLEAR(IDNSB_CHKPT_UNUSED, (mark))
642 #define	CHECKPOINT_CACHE_STEP_DEBUG(bset, mark) \
643 			CHECKPOINT_OPENED(IDNSB_CHKPT_UNUSED, (bset), (mark))
644 #else
645 #define	CHECKPOINT_CACHE_CLEAR_DEBUG(mark)
646 #define	CHECKPOINT_CACHE_STEP_DEBUG(bset, mark)
647 #endif /* DEBUG */
648 
649 
650 #ifdef DEBUG
651 #define	IDN_GSTATE_TRANSITION(ns) \
652 	{ \
653 		hrtime_t	tstamp; \
654 		/*LINTED*/ \
655 		IDN_HISTORY_LOG(IDNH_GSTATE, (ns), 0, 0); \
656 		tstamp = TIMESTAMP(); \
657 		ASSERT(IDN_GLOCK_IS_EXCL()); \
658 		PR_STATE("GSTATE:%lld: (l=%d) %s(%d) -> %s(%d)\n", \
659 			(uint64_t)tstamp, __LINE__, \
660 			idngs_str[idn.state], idn.state, \
661 			idngs_str[ns], (ns)); \
662 		mutex_enter(&idn.idnsb_mutex); \
663 		if (idn.idnsb) { \
664 			idn.idnsb->id_pgstate = (uchar_t)idn.state; \
665 			idn.idnsb->id_gstate = (uchar_t)(ns); \
666 		} \
667 		mutex_exit(&idn.idnsb_mutex); \
668 		idn.state = (ns); \
669 	}
670 #else
671 #define	IDN_GSTATE_TRANSITION(ns) \
672 	{ \
673 		IDN_HISTORY_LOG(IDNH_GSTATE, (ns), 0, 0); \
674 		mutex_enter(&idn.idnsb_mutex); \
675 		if (idn.idnsb) { \
676 			idn.idnsb->id_pgstate = (uchar_t)idn.state; \
677 			idn.idnsb->id_gstate = (uchar_t)(ns); \
678 		} \
679 		mutex_exit(&idn.idnsb_mutex); \
680 		idn.state = (ns); \
681 	}
682 #endif /* DEBUG */
683 
684 /*
685  * IDN link/unlink operations occur asynchronously with respect to the
686  * caller.  The following definitions are to support the return of
687  * success/failure back to the original requesting thread.  It's
688  * unlikely to have multiple outstanding link/unlink requests so we
689  * just provide a very small cache of waiting list entries.  If the
690  * cache becomes exhausted then additional ones are kmem_alloc'd.
691  */
692 #define	IDNOP_CACHE_SIZE	3
693 #define	IDNOP_IN_CACHE(dwl)	\
694 	(((dwl) >= &idn.dopers->_dop_wcache[0]) && \
695 	((dwl) < &idn.dopers->_dop_wcache[IDNOP_CACHE_SIZE]))
696 
697 typedef struct dop_waitlist {
698 	struct dop_waitlist	*dw_next;
699 	domainset_t	dw_reqset;
700 	domainset_t	dw_domset;
701 	short		dw_op;
702 	domainset_t	dw_errset;
703 	idnsb_error_t	*dw_idnerr;
704 	short		dw_errors[MAX_DOMAINS];
705 } dop_waitlist_t;
706 
707 typedef uint_t	idn_xdcargs_t[4];
708 typedef uint_t	idn_chanset_t;
709 
710 /*
711  * Types of synchronization zones which a connection
712  * could be in.
713  */
714 typedef enum {
715 	IDNSYNC_NIL,
716 	IDNSYNC_CONNECT,
717 	IDNSYNC_DISCONNECT
718 } idn_synccmd_t;
719 
720 /*
721  * Type of sync-registration that is being requested.
722  */
723 typedef enum {
724 	IDNSYNC_REG_REG,
725 	IDNSYNC_REG_NEW,
726 	IDNSYNC_REG_QUERY
727 } idn_syncreg_t;
728 
729 #define	IDN_SYNC_NUMZONE	3
730 #define	IDN_SYNC_GETZONE(s)	((((s) != IDNSYNC_CONNECT) && \
731 				((s) != IDNSYNC_DISCONNECT)) ? \
732 				-1 : (int)(s) - 1)
733 #define	IDN_SYNC_GETTRANS(s)	(((s) == IDNSYNC_CONNECT) ? \
734 				idn.domset.ds_trans_on : \
735 				((s) == IDNSYNC_DISCONNECT) ? \
736 				idn.domset.ds_trans_off : 0)
737 
738 /*
739  * Generic states when in a state transition region.
740  * These ultimately map to domain states via
741  * a idn_xphase_t definition.  General model:
742  *
743  *		PEND
744  *		 /\
745  *	        /  \
746  *	       |    |
747  *             V    V
748  *          SENT--->RCVD
749  *	       \    /
750  *	        \  /
751  *	         VV
752  *		FINAL
753  *
754  * Start these types with PEND = 0 so that they're
755  * compatible with idnxs_state_table[] and idn_xphase_t
756  * phases that use the value as an index.
757  */
758 typedef enum {
759 /* 0 */		IDNXS_PEND = 0,
760 /* 1 */		IDNXS_SENT,
761 /* 2 */		IDNXS_RCVD,
762 /* 3 */		IDNXS_FINAL,
763 /* 4 */		IDNXS_NIL
764 } idn_xstate_t;
765 
766 /*
767  * Locking protocol:
768  *
769  *	Each routine is called with SYNC_LOCK and
770  *	the respective domain's DLOCK(EXCL) held.
771  *	The routines must return with these locks
772  *	still held.
773  */
774 struct idn_msgtype;
775 
776 typedef struct {
777 	int	t_state;
778 	int	(*t_check)(int domid, struct idn_msgtype *mtp,
779 				idn_xdcargs_t xargs);
780 	void	(*t_action)(int domid, struct idn_msgtype *mtp,
781 				idn_xdcargs_t xargs);
782 	void	(*t_error)(int domid, struct idn_msgtype *mtp,
783 				idn_xdcargs_t xargs);
784 } idn_trans_t;
785 
786 /*
787  * The callback routines (xt_final & xt_exit) are called with
788  * DLOCK and SYNC_LOCK held and they are required to return
789  * with these locks still held.
790  */
791 typedef struct {
792 	uint_t		xt_msgtype;
793 	idn_trans_t	xt_trans[4];
794 	void		(*xt_final)(int domid);
795 	void		(*xt_exit)(int domid, uint_t msgtype);
796 } idn_xphase_t;
797 
798 /*
799  * Synchronization entry representing the synchronization
800  * state with respect to a given domain for a given zone.
801  */
802 typedef struct idn_syncop {
803 	struct idn_syncop	*s_next;
804 	int			s_domid;
805 	idn_synccmd_t		s_cmd;
806 	int			s_msg;
807 
808 	domainset_t		s_set_exp;
809 	domainset_t		s_set_rdy;
810 	int			(*s_transfunc)(int domid, void *arg);
811 	void			*s_transarg;
812 #ifdef DEBUG
813 	int			s_query[MAX_DOMAINS];
814 #endif /* DEBUG */
815 } idn_syncop_t;
816 
817 #ifdef DEBUG
818 #define	IDN_SYNC_QUERY_INIT(d) \
819 			(bzero((caddr_t)idn_domain[d].dsync.s_query, \
820 				sizeof (idn_domain[d].dsync.s_query)))
821 #define	IDN_SYNC_QUERY_UPDATE(md, sd)	(idn_domain[md].dsync.s_query[sd]++)
822 #else /* DEBUG */
823 #define	IDN_SYNC_QUERY_INIT(d)
824 #define	IDN_SYNC_QUERY_UPDATE(md, sd)
825 #endif /* DEBUG */
826 
827 typedef struct {
828 	idn_syncop_t	*sc_op;
829 	int		sc_cnt;
830 } idn_synczone_t;
831 
832 #endif /* _KERNEL */
833 
834 /*
835  * Vote Ticket used during negotiations and elections.
836  *
837  * 31					  0
838  * -----------------------------------------
839  * |m...|....|pppp|....|Cbbb|bccc|cccB|BBB1|
840  * -----------------------------------------
841  * m	[31]	= master/slave
842  * .	[30:24]	= unused
843  * p	[23:20]	= priority
844  * .	[19:16]	= unused
845  * C	[15]    = connected (has master)
846  * b	[14:11]	= nmembrds-1
847  * c	[10:5]	= ncpus-1
848  * B	[4:1]	= board_id
849  * 1	[0]	= one
850  */
851 typedef union {
852 	struct {
853 		uint_t	master    :1;
854 		uint_t	unused0   :7;
855 		uint_t	priority  :4;
856 		uint_t	unused1   :4;
857 		uint_t	connected :1;
858 		uint_t	nmembrds  :4;
859 		uint_t	ncpus	  :6;
860 		uint_t	board	  :4;
861 		uint_t	one	  :1;
862 	} v;
863 	uint_t	ticket;
864 } idn_vote_t;
865 
866 #define	IDNVOTE_PRI_MASK	0xf
867 #define	IDNVOTE_MAXPRI		0xf
868 #define	IDNVOTE_MINPRI		0
869 #define	IDNVOTE_DEFPRI		1	/* must be larger than MINPRI */
870 /*
871  * Initially:
872  *	vote.v.priority = IDNVOTE_DEFPRI
873  *	vote.v.one	= 1
874  */
875 #define	IDNVOTE_INITIAL_TICKET	((IDNVOTE_DEFPRI << 20) | 1)
876 #define	IDNVOTE_PRIVALUE(vvv) \
877 	((int)vvv.v.priority + ((int)vvv.v.master ? IDNVOTE_MAXPRI : 0))
878 
879 /*
880  * During elections we only use the "elect" attributes of the
881  * election ticket, i.e. those physical attributes pertaining
882  * to the individual domain (priority, nboards, ncpus, board).
883  */
884 #define	IDNVOTE_ELECT_MASK	0x00f07fff
885 #define	IDNVOTE_ELECT(tkt)	((tkt).ticket & IDNVOTE_ELECT_MASK)
886 #define	IDNVOTE_BASICS_MASK	0x00f0ffff
887 #define	IDNVOTE_BASICS(tkt)	((tkt).ticket & IDNVOTE_BASICS_MASK)
888 
889 /*
890  * Values used in idn_select_master().
891  */
892 #define	MASTER_IS_NONE		0	/* index into master_select_table */
893 #define	MASTER_IS_OTHER		1
894 #define	MASTER_IS_LOCAL		2
895 #define	MASTER_IS_REMOTE	3
896 
897 typedef enum {
898 	MASTER_SELECT_VOTE,
899 	MASTER_SELECT_VOTE_RCFG,
900 	MASTER_SELECT_CONNECT,
901 	MASTER_SELECT_REMOTE,
902 	MASTER_SELECT_LOCAL,
903 	MASTER_SELECT_WAIT,
904 	MASTER_SELECT_ERROR
905 } idn_master_select_t;
906 
907 /*
908  * Used to synchronize completion of link/unlink with respect to
909  * the original requester (user).  Necessary since link establishment
910  * occurs asynchronously.
911  */
912 typedef enum {
913 /*  0 */	IDNOP_DISCONNECTED,	/* successfully disconnected */
914 /*  1 */	IDNOP_CONNECTED,	/* successfully established */
915 /*  2 */	IDNOP_ERROR		/* error trying to link/unlink */
916 } idn_opflag_t;
917 
918 /*
919  * IDN Protocol Messages.
920  * These are IDN version (IDN_VERSION) dependent.
921  *
922  *	----- 7, --- 6,5.................0
923  *	|  ack | nack | IDN message type |
924  *	----------------------------------
925  */
926 #define	IDN_VERSION	1
927 
928 /*
929  * Must be no more than 6-bits.  See DMV private data.
930  */
931 #define	IDNP_ACK	0x20
932 #define	IDNP_NACK	0x10
933 #define	IDNP_NULL	0x00
934 #define	IDNP_NEGO	0x01
935 #define	IDNP_CON	0x02
936 #define	IDNP_CFG	0x03
937 #define	IDNP_FIN	0x04
938 #define	IDNP_CMD	0x05
939 #define	IDNP_DATA	0x06
940 
941 #define	IDN_NUM_MSGTYPES	7
942 #define	IDNP_ACKNACK_MASK	(IDNP_ACK | IDNP_NACK)
943 #define	IDNP_MSGTYPE_MASK	0x0f
944 #define	VALID_MSGTYPE(m)	(((m) >= IDNP_NEGO) && ((m) < IDN_NUM_MSGTYPES))
945 
946 typedef struct idn_msgtype {
947 	ushort_t	mt_mtype;
948 	ushort_t	mt_atype;
949 	ushort_t	mt_cookie;
950 } idn_msgtype_t;
951 
952 /*
953  * IDN private data section of DMV layout (48 bits).
954  *
955  * 47......40,39.....34,33.....28,27..24,23......16,15..............0
956  * | version | msgtype | acktype |  did |   cpuid  |     cookie     |
957  * ------------------------------------------------------------------
958  *
959  * version	Local domain's version of IDN software.
960  * msgtype	Type of IDN message, e.g. nego, syn, etc.
961  * acktype	If msgtype is a ACK or NACK, then acktype is the
962  *		type of ack that we're receiving, e.g. ack/nego|ack.
963  * did		Local domain's ID (netid) - system-wide unique.
964  * cpuid	Local domain's CPU->cpu_id that sending message.
965  * cookie	Cookie assigned by remote domain for authentication.
966  *		For NEGO & NEGO+ACK messages, it's the cookie that
967  *		the sender expects the receiver to use in subsequent
968  *		messages.  The upper-eight bits represent a timer
969  *		cookie to associate timers with expected messages.
970  */
971 #endif /* !_ASM */
972 
973 #ifdef _KERNEL
974 
975 #define	_IDNPD_COOKIE_MASK	0xffff
976 #define	_IDNPD_COOKIE_SHIFT	32
977 #define	_IDNPD_VER_MASK		0xff
978 #define	_IDNPD_VER_SHIFT	24
979 #define	_IDNPD_MTYPE_MASK	0x3f
980 #define	_IDNPD_MTYPE_SHIFT	18
981 #define	_IDNPD_ATYPE_MASK	0x3f
982 #define	_IDNPD_ATYPE_SHIFT	12
983 #define	_IDNPD_DOMID_MASK	0xf
984 #define	_IDNPD_DOMID_SHIFT	8
985 #define	_IDNPD_CPUID_MASK	0xff
986 #define	_IDNPD_CPUID_SHIFT	0
987 
988 #define	_IDNPD_COOKIE_LEN	16
989 
990 #ifndef _ASM
991 
992 #define	IDN_PD2COOKIE(pdata) \
993 	(((uint_t)((pdata) >> _IDNPD_COOKIE_SHIFT)) & _IDNPD_COOKIE_MASK)
994 #define	IDN_PD2VER(pdata) \
995 	(((uint_t)((pdata) >> _IDNPD_VER_SHIFT)) & _IDNPD_VER_MASK)
996 #define	IDN_PD2MTYPE(pdata) \
997 	(((uint_t)((pdata) >> _IDNPD_MTYPE_SHIFT)) & _IDNPD_MTYPE_MASK)
998 #define	IDN_PD2ATYPE(pdata) \
999 	(((uint_t)((pdata) >> _IDNPD_ATYPE_SHIFT)) & _IDNPD_ATYPE_MASK)
1000 #define	IDN_PD2DOMID(pdata) \
1001 	(((uint_t)((pdata) >> _IDNPD_DOMID_SHIFT)) & _IDNPD_DOMID_MASK)
1002 #define	IDN_PD2CPUID(pdata) \
1003 	(((uint_t)((pdata) >> _IDNPD_CPUID_SHIFT)) & _IDNPD_CPUID_MASK)
1004 
1005 #define	IDN_MAKE_PDATA(mtype, atype, cookie) \
1006 	((((uint64_t)(cookie) & UINT64_C(_IDNPD_COOKIE_MASK))	<< \
1007 					_IDNPD_COOKIE_SHIFT)	| \
1008 	(((uint64_t)idn.version & UINT64_C(_IDNPD_VER_MASK))	<< \
1009 					_IDNPD_VER_SHIFT)	| \
1010 	(((uint64_t)(mtype) & UINT64_C(_IDNPD_MTYPE_MASK))	<< \
1011 					_IDNPD_MTYPE_SHIFT)	| \
1012 	(((uint64_t)(atype) & UINT64_C(_IDNPD_ATYPE_MASK))	<< \
1013 					_IDNPD_ATYPE_SHIFT)	| \
1014 	(((uint64_t)idn.localid & UINT64_C(_IDNPD_DOMID_MASK))	<< \
1015 					_IDNPD_DOMID_SHIFT)	| \
1016 	(((uint64_t)CPU->cpu_id & UINT64_C(_IDNPD_CPUID_MASK))	<< \
1017 					_IDNPD_CPUID_SHIFT))
1018 
1019 #define	IDN_TCOOKIE(ck)		(((ck) >> 8) & 0xff)
1020 #define	IDN_DCOOKIE(ck)		((ck) & 0xff)
1021 #define	IDN_MAKE_COOKIE(d, t)	((((t) & 0xff) << 8) | ((d) & 0xff))
1022 
1023 /*
1024  * IDNP_NEGO
1025  *
1026  * 127........96,95........64,63........32,31.........0
1027  * |   vote     |             domainset               |
1028  * ----------------------------------------------------
1029  * vote		Local/Remote domain's vote ticket.
1030  * domainset	Mask of cpuids of domains to which
1031  *		sender is connected.  Position in domainset
1032  *		designates respective domainid.
1033  *		E.g. domainset[6] = 20 -> domainid 6 is
1034  *		accessible via cpuid 20.
1035  *		The slot for the receiving domain
1036  *		contains the masterid of the sending
1037  *		domain.  If the sending domain does
1038  *		not have a master then the entry will
1039  *		contain IDNNEG_NO_MASTER.
1040  *
1041  * These macros insert a domainid-cpuid pair into the
1042  * domainset to be subsequently passed in a NEGO message,
1043  * also retrieve the cpuid from the domainset for a
1044  * given domainid.
1045  *
1046  * Usage:
1047  *	Sending:
1048  *		mask = IDNNEG_DSET_MYMASK();
1049  *		IDNNEG_DSET_INIT(dset, mask)
1050  *		for (all domains except self)
1051  *			IDNNEG_DSET_SET(dset, domain, cpuid, mask);
1052  *
1053  *	Receiving:
1054  *		IDNNEG_DSET_GET_MASK(dset, recv_domid, recv_mask);
1055  *		for (all domains except recv_domid)
1056  *			IDNNEG_DSET_GET(dset, domid, cpuid, recv_mask);
1057  */
1058 typedef uint_t	idnneg_dset_t[3];
1059 
1060 #define	IDNNEG_NO_MASTER		0x3f
1061 #define	__IDNNEG_DSET_CLEAR(dset)	(bzero((caddr_t)(dset), \
1062 						sizeof (idnneg_dset_t)))
1063 #define	IDNNEG_DSET_MYMASK()		(idn_domain[idn.localid].dcpu)
1064 
1065 #define	IDNNEG_DSET_INIT(dset, mask) \
1066 	{ \
1067 		__IDNNEG_DSET_CLEAR(dset); \
1068 		IDNNEG_DSET_SET((dset), idn.localid, (mask), idn.localid); \
1069 	}
1070 
1071 #define	IDNNEG_DSET_SET(dset, domid, cpuid, mask) \
1072 	{ \
1073 		uint_t	_s = ((domid) & 0xf) * 6; \
1074 		int	_i = _s >> 5; \
1075 		uint_t	_s0 = _s & 0x1f; \
1076 		uint_t	_t = ((cpuid) ^ (mask)) & 0x3f; \
1077 		/*LINTED*/ \
1078 		ASSERT(((domid) == idn.localid) ? \
1079 			((mask) == idn.localid) : ((cpuid) != (mask))); \
1080 		(dset)[_i] |= _t << _s0; \
1081 		if ((_s0 + 6) > 32) \
1082 			(dset)[_i + 1] |= _t >> (32 - _s0);  \
1083 	}
1084 
1085 #define	__IDNNEG_DSET_GET(dset, domid, cpuid, mask, uncond) \
1086 	{ \
1087 		uint_t	_s = ((domid) & 0xf) * 6; \
1088 		int	_i = _s >> 5; \
1089 		uint_t	_s0 = _s & 0x1f; \
1090 		uint_t	_s1 = (_s + 6) & 0x1f; \
1091 		(cpuid) = ((dset)[_i] >> _s0) & 0x3f; \
1092 		if ((_s0 + 6) > 32) \
1093 			(cpuid) |= ((dset)[_i + 1] << (6 - _s1)) & 0x3f; \
1094 		if ((cpuid) || (uncond)) \
1095 			(cpuid) ^= (mask) & 0x3f; \
1096 		else \
1097 			(cpuid) = -1; \
1098 	}
1099 
1100 #define	IDNNEG_DSET_GET_MASK(dset, domid, mask) \
1101 		__IDNNEG_DSET_GET((dset), (domid), (mask), (domid), 1)
1102 
1103 #define	IDNNEG_DSET_GET_MASTER(dset, master) \
1104 		__IDNNEG_DSET_GET((dset), idn.localid, (master), \
1105 				idn.localid+MAX_DOMAINS, 0)
1106 
1107 #define	IDNNEG_DSET_SET_MASTER(dset, domid, master) \
1108 		IDNNEG_DSET_SET((dset), (domid), (master), \
1109 				(domid)+MAX_DOMAINS)
1110 
1111 #define	IDNNEG_DSET_GET(dset, domid, cpuid, mask) \
1112 		__IDNNEG_DSET_GET((dset), (domid), (cpuid), (mask), 0)
1113 
1114 /*
1115  * IDNP_CFG sub-types.
1116  *
1117  * Format of first 32 bit word in XDC:
1118  *	stX  = sub-type.
1119  *	staX = sub-type arg.
1120  *	X    = position in idn_cfgsubtype_t.param.p[] array.
1121  *	num  = number of parameters in this XDC (0-3)
1122  *
1123  *      31...28,27...24,23...20,19...16,15...12,11....8,7.....3,2....0
1124  *	|  st0 .  sta0 |   st1 .  sta1 |   st2 .  sta2 | phase | num |
1125  *	--------------------------------------------------------------
1126  *
1127  * Note that since the first 32-bit word in a (IDNP_CFG) XDC is used
1128  * for a sub-type, subsequent three 32-bits words are used for data that
1129  * pertains to respective sub-type, i.e. first sub-type corresponds
1130  * to first of the 3x32-bit words (pos=0), second sub-type corresponds
1131  * to second of the 3x32-bit words (pos=1), etc.  Obviously, a max of
1132  * only three sub-types can be sent per xdc.
1133  */
1134 #define	IDNCFG_BARLAR		0x1	/* SMR base/limit pfn */
1135 #define	  IDNCFGARG_BARLAR_BAR		0	/* BAR */
1136 #define	  IDNCFGARG_BARLAR_LAR		1	/* LAR */
1137 #define	IDNCFG_MCADR		0x2	/* MC ADR, arg = board number */
1138 #define	IDNCFG_NMCADR		0x3	/* Number of MC ADRs to expect */
1139 #define	IDNCFG_CPUSET		0x4	/* dcpuset of remote domain */
1140 #define	  IDNCFGARG_CPUSET_UPPER  	0	/* 1st word */
1141 #define	  IDNCFGARG_CPUSET_LOWER  	1	/* 2nd word */
1142 #define	IDNCFG_NETID		0x5	/* dnetid, arg = 0 */
1143 #define	IDNCFG_BOARDSET		0x6	/* board set, arg = 0 */
1144 #define	IDNCFG_SIZE		0x7	/* SMR size parameters */
1145 #define	  IDNCFGARG_SIZE_MTU		0	/* IDN_MTU */
1146 #define	  IDNCFGARG_SIZE_BUF		1	/* IDN_SMR_BUFSIZE */
1147 #define	  IDNCFGARG_SIZE_SLAB		2	/* IDN_SLAB_BUFCOUNT */
1148 #define	  IDNCFGARG_SIZE_NWR		3	/* IDN_NWR_SIZE */
1149 #define	IDNCFG_DATAMBOX		0x8	/* SMR data mailbox info */
1150 #define	  IDNCFGARG_DATAMBOX_TABLE  	0	/* recvmbox table */
1151 #define	  IDNCFGARG_DATAMBOX_DOMAIN	1	/* domain's recvmbox */
1152 #define	  IDNCFGARG_DATAMBOX_INDEX	2	/* domain's index into table */
1153 #define	IDNCFG_DATASVR		0x9	/* Data server info */
1154 #define	  IDNCFGARG_DATASVR_MAXNETS	0	/* max # of nets/channels */
1155 #define	  IDNCFGARG_DATASVR_MBXPERNET	1	/* # mbox per net/channel */
1156 #define	IDNCFG_OPTIONS		0xa	/* various options */
1157 #define	  IDNCFGARG_CHECKSUM		0	/* IDN_CHECKSUM */
1158 
1159 #define	IDN_CFGPARAM(st, sta)	((uchar_t)((((st) & 0xf) << 4) | ((sta) & 0xf)))
1160 #define	IDN_CFGPARAM_TYPE(p)	(((p) >> 4) & 0xf)
1161 #define	IDN_CFGPARAM_ARG(p)	((p) & 0xf)
1162 
1163 typedef union {
1164 	struct {
1165 		uchar_t	p[3];
1166 		uchar_t	_num_phase;	/* info.num, info.phase used instead */
1167 	} param;
1168 	struct {
1169 		uint_t	_p	: 24;	/* param.p[] used instead */
1170 		uint_t	num	: 2;
1171 		uint_t	phase	: 6;
1172 	} info;
1173 	uint_t	val;
1174 } idn_cfgsubtype_t;
1175 
1176 /*
1177  * IDN_MASTER_NCFGITEMS
1178  *	Minimum number of config items expected from master.
1179  *
1180  * IDN_SLAVE_NCFGITEMS
1181  *	Number of config items expected from slave.
1182  */
1183 #define	IDN_MASTER_NCFGITEMS	17	/* max = +14 (mcadrs) */
1184 #define	IDN_SLAVE_NCFGITEMS	12
1185 
1186 /*
1187  * IDNP_CMD sub-types.
1188  */
1189 typedef enum {
1190 /*  1 */	IDNCMD_SLABALLOC = 1,	/* Request to allocate a slab */
1191 /*  2 */	IDNCMD_SLABFREE,	/* Request to free a slab */
1192 /*  3 */	IDNCMD_SLABREAP,	/* Reap any free slabs */
1193 /*  4 */	IDNCMD_NODENAME		/* Query nodename of domain */
1194 } idn_cmd_t;
1195 
1196 #define	VALID_IDNCMD(c)		(((int)(c) >= (int)IDNCMD_SLABALLOC) && \
1197 					((int)(c) <= (int)IDNCMD_NODENAME))
1198 /*
1199  * IDNP_NACK
1200  */
1201 typedef enum {
1202 /*  1 */	IDNNACK_NOCONN = 1,
1203 /*  2 */	IDNNACK_BADCHAN,
1204 /*  3 */	IDNNACK_BADCFG,
1205 /*  4 */	IDNNACK_BADCMD,
1206 /*  5 */	IDNNACK_RETRY,
1207 /*  6 */	IDNNACK_DUP,
1208 /*  7 */	IDNNACK_EXIT,
1209 /*  8 */	IDNNACK_RESERVED1,
1210 /*  9 */	IDNNACK_RESERVED2,
1211 /* 10 */	IDNNACK_RESERVED3
1212 } idn_nack_t;
1213 
1214 /*
1215  * IDNP_CON sub-types.
1216  */
1217 typedef enum {
1218 /*  0 */	IDNCON_OFF = 0,
1219 /*  1 */	IDNCON_NORMAL,		/* regular connect sequence */
1220 /*  2 */	IDNCON_QUERY		/* query for connect info */
1221 } idn_con_t;
1222 
1223 /*
1224  * IDNP_FIN sub-types.
1225  */
1226 typedef enum {
1227 /*  0 */	IDNFIN_OFF = 0,		/* active, no fin */
1228 /*  1 */	IDNFIN_NORMAL,		/* normal disconnect req */
1229 /*  2 */	IDNFIN_FORCE_SOFT,	/* normal dis, force if goes AWOL */
1230 /*  3 */	IDNFIN_FORCE_HARD,	/* force disconnect of AWOL domain */
1231 /*  4 */	IDNFIN_QUERY		/* query for fin info */
1232 } idn_fin_t;
1233 
1234 #define	VALID_FIN(f)		(((int)(f) > 0) && \
1235 					((int)(f) < (int)IDNFIN_QUERY))
1236 #define	FIN_IS_FORCE(f)		(((f) == IDNFIN_FORCE_SOFT) || \
1237 					((f) == IDNFIN_FORCE_HARD))
1238 
1239 /*
1240  * FIN ARG types - reasons a FIN was sent.
1241  */
1242 typedef enum {
1243 /*  0 */	IDNFIN_ARG_NONE = 0,		/* no argument */
1244 /*  1 */	IDNFIN_ARG_SMRBAD,		/* SMR is corrupted */
1245 /*  2 */	IDNFIN_ARG_CPUCFG,		/* missing cpu per board */
1246 /*  3 */	IDNFIN_ARG_HWERR,		/* error programming hardware */
1247 /*  4 */	IDNFIN_ARG_CFGERR_FATAL,	/* Fatal error during CONFIG */
1248 /*  5 */	IDNFIN_ARG_CFGERR_MTU,		/* MTU sizes conflict */
1249 /*  6 */	IDNFIN_ARG_CFGERR_BUF,		/* SMR_BUF_SIZE conflicts */
1250 /*  7 */	IDNFIN_ARG_CFGERR_SLAB,		/* SLAB sizes conflict */
1251 /*  8 */	IDNFIN_ARG_CFGERR_NWR,		/* NWR sizes conflict */
1252 /*  9 */	IDNFIN_ARG_CFGERR_NETS,		/* MAX_NETS conflict */
1253 /* 10 */	IDNFIN_ARG_CFGERR_MBOX,		/* MBOX_PER_NET conflict */
1254 /* 11 */	IDNFIN_ARG_CFGERR_NMCADR,	/* NMCADR mismatches actual */
1255 /* 12 */	IDNFIN_ARG_CFGERR_MCADR,	/* missing some MCADRs */
1256 /* 13 */	IDNFIN_ARG_CFGERR_CKSUM,	/* checksum settings conflict */
1257 /* 14 */	IDNFIN_ARG_CFGERR_SMR		/* SMR sizes conflict */
1258 } idn_finarg_t;
1259 
1260 #define	IDNFIN_ARG_IS_FATAL(fa)	((fa) > IDNFIN_ARG_NONE)
1261 
1262 #define	SET_FIN_TYPE(x, t) \
1263 		((x) &= 0xffff, (x) |= (((uint_t)(t) & 0xffff) << 16))
1264 #define	SET_FIN_ARG(x, a) \
1265 		((x) &= ~0xffff, (x) |= ((uint_t)(a) & 0xffff))
1266 #define	GET_FIN_TYPE(x)		((idn_fin_t)(((x) >> 16) & 0xffff))
1267 #define	GET_FIN_ARG(x)		((idn_finarg_t)((x) & 0xffff))
1268 
1269 #define	FINARG2IDNKERR(fa) \
1270 	(((fa) == IDNFIN_ARG_SMRBAD)	   ? IDNKERR_SMR_CORRUPTED : \
1271 	((fa) == IDNFIN_ARG_CPUCFG)	   ? IDNKERR_CPU_CONFIG	   : \
1272 	((fa) == IDNFIN_ARG_HWERR)	   ? IDNKERR_HW_ERROR	   : \
1273 	((fa) == IDNFIN_ARG_CFGERR_FATAL)  ? IDNKERR_HW_ERROR	   : \
1274 	((fa) == IDNFIN_ARG_CFGERR_MTU)    ? IDNKERR_CONFIG_MTU	   : \
1275 	((fa) == IDNFIN_ARG_CFGERR_BUF)    ? IDNKERR_CONFIG_BUF	   : \
1276 	((fa) == IDNFIN_ARG_CFGERR_SLAB)   ? IDNKERR_CONFIG_SLAB   : \
1277 	((fa) == IDNFIN_ARG_CFGERR_NWR)    ? IDNKERR_CONFIG_NWR    : \
1278 	((fa) == IDNFIN_ARG_CFGERR_NETS)   ? IDNKERR_CONFIG_NETS   : \
1279 	((fa) == IDNFIN_ARG_CFGERR_MBOX)   ? IDNKERR_CONFIG_MBOX   : \
1280 	((fa) == IDNFIN_ARG_CFGERR_NMCADR) ? IDNKERR_CONFIG_NMCADR : \
1281 	((fa) == IDNFIN_ARG_CFGERR_MCADR)  ? IDNKERR_CONFIG_MCADR  : \
1282 	((fa) == IDNFIN_ARG_CFGERR_CKSUM)  ? IDNKERR_CONFIG_CKSUM  : \
1283 	((fa) == IDNFIN_ARG_CFGERR_SMR)	   ? IDNKERR_CONFIG_SMR    : 0)
1284 
1285 /*
1286  * FIN SYNC types.
1287  */
1288 #define	IDNFIN_SYNC_OFF		0	/* not set */
1289 #define	IDNFIN_SYNC_NO		1	/* no-sync necessary */
1290 #define	IDNFIN_SYNC_YES		2	/* do fin synchronously */
1291 
1292 typedef short	idn_finsync_t;
1293 
1294 /*
1295  * IDNP_FIN options.
1296  */
1297 typedef enum {
1298 /*  0 */	IDNFIN_OPT_NONE = 0,	/* none (used w/query) */
1299 /*  1 */	IDNFIN_OPT_UNLINK,	/* normal unlink request */
1300 /*  2 */	IDNFIN_OPT_RELINK	/* disconnect and retry link */
1301 } idn_finopt_t;
1302 
1303 #define	VALID_FINOPT(f)		(((f) == IDNFIN_OPT_UNLINK) || \
1304 				((f) == IDNFIN_OPT_RELINK))
1305 
1306 #define	FIN_MASTER_DOMID(x)	(((((x) >> 16) & 0xffff) == 0xffff) ? \
1307 				IDN_NIL_DOMID : (((x) >> 16) & 0xffff))
1308 #define	FIN_MASTER_CPUID(x)	((((x) & 0xffff) == 0xffff) ? \
1309 				IDN_NIL_DCPU : ((x) & 0xfff))
1310 #define	MAKE_FIN_MASTER(d, c)	((((uint_t)(d) & 0xffff) << 16) | \
1311 				((uint_t)(c) & 0xffff))
1312 #define	NIL_FIN_MASTER		MAKE_FIN_MASTER(IDN_NIL_DOMID, IDN_NIL_DCPU)
1313 
1314 #ifdef DEBUG
1315 #define	IDN_FSTATE_TRANSITION(dp, ns) \
1316 	{ \
1317 		int	_id; \
1318 		_id = (dp)->domid; \
1319 		if ((dp)->dfin != (ns)) { \
1320 			hrtime_t	tstamp; \
1321 			tstamp = TIMESTAMP(); \
1322 			IDN_HISTORY_LOG(IDNH_FIN, _id, (ns), 0); \
1323 			PR_STATE("FSTATE:%lld:%d: (l=%d, b/p=%d/%d) " \
1324 				"%s(%d) -> %s(%d)\n", \
1325 				(uint64_t)tstamp, _id, \
1326 				__LINE__, \
1327 				((dp)->dcpu == IDN_NIL_DCPU) ? -1 : \
1328 					CPUID_TO_BOARDID((dp)->dcpu), \
1329 				(dp)->dcpu, \
1330 				idnfin_str[(dp)->dfin], (dp)->dfin, \
1331 				idnfin_str[ns], (ns)); \
1332 			(dp)->dfin = (ns); \
1333 		} \
1334 	}
1335 #else
1336 #define	IDN_FSTATE_TRANSITION(dp, ns) \
1337 	{ \
1338 		IDN_HISTORY_LOG(IDNH_FIN, (dp)->domid, (ns), 0); \
1339 		(dp)->dfin = (ns); \
1340 	}
1341 #endif /* DEBUG */
1342 
1343 #endif /* !_ASM */
1344 #endif /* _KERNEL */
1345 
1346 #ifndef _ASM
1347 /*
1348  * IDN Per-Domain States.
1349  */
1350 typedef enum {
1351 /*  0 */	IDNDS_CLOSED,		/* idle */
1352 /*  1 */	IDNDS_NEGO_PEND,	/* link initiating */
1353 /*  2 */	IDNDS_NEGO_SENT,	/* link initiated, nego sent */
1354 /*  3 */	IDNDS_NEGO_RCVD,	/* link wanted, nego+ack sent */
1355 /*  4 */	IDNDS_CONFIG,		/* passing config info, prgm hw */
1356 /*  5 */	IDNDS_CON_PEND,		/* connection pending */
1357 /*  6 */	IDNDS_CON_SENT,		/* con sent */
1358 /*  7 */	IDNDS_CON_RCVD,		/* con sent & received */
1359 /*  8 */	IDNDS_CON_READY,	/* ready to establish link */
1360 /*  9 */	IDNDS_CONNECTED,	/* established - linked */
1361 /* 10 */	IDNDS_FIN_PEND,		/* unlink initiating */
1362 /* 11 */	IDNDS_FIN_SENT,		/* unlink initiated, fin sent */
1363 /* 12 */	IDNDS_FIN_RCVD,		/* unlink wanted by remote */
1364 /* 13 */	IDNDS_DMAP		/* deprogramming hw */
1365 } idn_dstate_t;
1366 
1367 #define	IDNDS_IS_CLOSED(dp)	(((dp)->dstate == IDNDS_CLOSED) || \
1368 				((dp)->dstate == IDNDS_DMAP))
1369 #define	IDNDS_IS_CONNECTING(dp) (((dp)->dstate > IDNDS_CLOSED) && \
1370 				((dp)->dstate < IDNDS_CONNECTED))
1371 #define	IDNDS_IS_DISCONNECTING(dp)	((dp)->dstate > IDNDS_CONNECTED)
1372 #define	IDNDS_CONFIG_DONE(dp)	(((dp)->dstate == IDNDS_CLOSED) || \
1373 				((dp)->dstate > IDNDS_CONFIG))
1374 #define	IDNDS_SYNC_TYPE(dp)	(((dp)->dfin_sync != IDNFIN_SYNC_OFF) ? \
1375 				(dp)->dfin_sync : \
1376 					((dp)->dstate < IDNDS_CON_READY) ? \
1377 					IDNFIN_SYNC_NO : IDNFIN_SYNC_YES)
1378 
1379 #endif /* !_ASM */
1380 
1381 #ifdef _KERNEL
1382 #ifndef _ASM
1383 /*
1384  * ---------------------------------------------------------------------
1385  */
1386 typedef struct idn_timer {
1387 	struct idn_timer	*t_forw,
1388 				*t_back;
1389 	struct idn_timerq	*t_q;
1390 
1391 	timeout_id_t		t_id;
1392 	short			t_domid;
1393 	short			t_onq;
1394 	ushort_t		t_type;
1395 	ushort_t		t_subtype;
1396 	uint_t			t_cookie;
1397 #ifdef DEBUG
1398 	hrtime_t		t_posttime;
1399 	hrtime_t		t_exectime;
1400 #endif /* DEBUG */
1401 } idn_timer_t;
1402 
1403 #define	IDN_TIMER_PUBLIC_COOKIE		0xf
1404 
1405 #define	IDN_TIMERQ_IS_LOCKED(tq)	(MUTEX_HELD(&(tq)->tq_mutex))
1406 #define	IDN_TIMERQ_LOCK(tq)		(mutex_enter(&(tq)->tq_mutex))
1407 #define	IDN_TIMERQ_UNLOCK(tq)		(mutex_exit(&(tq)->tq_mutex))
1408 
1409 #define	IDN_TIMERQ_INIT(tq) 		(idn_timerq_init(tq))
1410 #define	IDN_TIMERQ_DEINIT(tq) 		(idn_timerq_deinit(tq))
1411 #define	IDN_TIMER_ALLOC()		(idn_timer_alloc())
1412 #define	IDN_TIMER_FREE(tp)		(idn_timer_free(tp))
1413 
1414 #define	IDN_TIMER_START(tq, tp, tim) \
1415 			(idn_timer_start((tq), (tp), (tim)))
1416 #define	IDN_TIMER_STOP(tq, typ, ck) \
1417 			((void) idn_timer_stop((tq), (typ), (ck)))
1418 #define	IDN_TIMER_STOPALL(tp) \
1419 			((void) idn_timer_stopall(tp))
1420 #define	IDN_TIMER_GET(tq, typ, tp, ck) \
1421 	{ \
1422 		mutex_enter(&((tq)->tq_mutex)); \
1423 		(tp) = idn_timer_get((tq), (typ), (ck)); \
1424 		mutex_exit(&((tq)->tq_mutex)); \
1425 	}
1426 #define	IDN_TIMER_DEQUEUE(tq, tp) \
1427 			(idn_timer_dequeue((tq), (tp)))
1428 #ifdef DEBUG
1429 #define	IDN_TIMER_POST(tp) \
1430 	((tp)->t_posttime = gethrtime(), (tp)->t_exectime = 0)
1431 #define	IDN_TIMER_EXEC(tp)	((tp)->t_exectime = gethrtime())
1432 #else /* DEBUG */
1433 #define	IDN_TIMER_POST(tp)
1434 #define	IDN_TIMER_EXEC(tp)
1435 #endif /* DEBUG */
1436 
1437 #define	IDN_MSGTIMER_START(domid, typ, subtyp, tim, ckp) \
1438 	{ \
1439 		idn_timer_t	*_tp; \
1440 		char		_str[15]; \
1441 		ushort_t	*_ckp = (ckp); \
1442 		inum2str((typ), _str); \
1443 		PR_TIMER("msgtimer:%d: START: type = %s (0x%x)\n", \
1444 				(domid), _str, (typ)); \
1445 		_tp = IDN_TIMER_ALLOC(); \
1446 		_tp->t_type	= (ushort_t)(typ); \
1447 		_tp->t_subtype	= (ushort_t)(subtyp); \
1448 		_tp->t_domid	= (short)(domid); \
1449 		_tp->t_cookie	= (_ckp) ? *(_ckp) : 0; \
1450 		IDN_TIMER_POST(_tp); \
1451 		if (_ckp) { \
1452 			*(_ckp) = IDN_TIMER_START(&idn_domain[domid].dtimerq, \
1453 						_tp, (tim)); \
1454 		} else { \
1455 			(void) IDN_TIMER_START(&idn_domain[domid].dtimerq, \
1456 						_tp, (tim)); \
1457 		} \
1458 	}
1459 #define	IDN_MSGTIMER_STOP(domid, typ, ck) \
1460 	{ \
1461 		char	_str[15]; \
1462 		inum2str((typ), _str); \
1463 		PR_TIMER("msgtimer:%d: STOP: type = %s (0x%x), " \
1464 			"cookie = 0x%x\n", \
1465 				(domid), _str, (typ), (ck)); \
1466 		IDN_TIMER_STOP(&idn_domain[domid].dtimerq, (typ), (ck)); \
1467 	}
1468 #define	IDN_MSGTIMER_GET(dp, typ, tp, ck) \
1469 			IDN_TIMER_GET(&(dp)->dtimerq, (typ), (tp), (ck))
1470 
1471 /*
1472  * IDN_SLABALLOC_WAITTIME
1473  *		Max wait time in ticks that local domains waits for
1474  *		master to respond to a slab allocation request.  Has
1475  *		to be at least as long as wait time for a response to
1476  *		the command.
1477  */
1478 #define	IDN_SLABALLOC_WAITTIME	((3 * idn_msg_waittime[IDNP_CMD]) / 2)
1479 
1480 /*
1481  * Domain state transition macros.
1482  */
1483 #ifdef DEBUG
1484 #define	IDN_DSTATE_TRANSITION(dp, ns) \
1485 	{ \
1486 		int		id; \
1487 		hrtime_t	tstamp; \
1488 		tstamp = TIMESTAMP(); \
1489 		ASSERT(RW_WRITE_HELD(&(dp)->drwlock)); \
1490 		id = (dp)->domid; \
1491 		IDN_HISTORY_LOG(IDNH_DSTATE, id, (ns), \
1492 				(uint_t)(dp)->dcpu); \
1493 		PR_STATE("DSTATE:%lld:%d: (l=%d, b/p=%d/%d) " \
1494 			"%s(%d) -> %s(%d)\n", \
1495 			(uint64_t)tstamp, id, \
1496 			__LINE__, \
1497 			((dp)->dcpu == IDN_NIL_DCPU) ? \
1498 				-1 : CPUID_TO_BOARDID((dp)->dcpu), \
1499 			(dp)->dcpu, \
1500 			idnds_str[(dp)->dstate], (dp)->dstate, \
1501 			idnds_str[ns], (ns)); \
1502 		(dp)->dstate = (ns); \
1503 		IDNSB_DOMAIN_UPDATE(dp); \
1504 	}
1505 #else
1506 #define	IDN_DSTATE_TRANSITION(dp, ns) \
1507 	{ \
1508 		IDN_HISTORY_LOG(IDNH_DSTATE, (dp)->domid, \
1509 			(ns), (uint_t)(dp)->dcpu); \
1510 		(dp)->dstate = (ns); \
1511 		IDNSB_DOMAIN_UPDATE(dp); \
1512 	}
1513 #endif /* DEBUG */
1514 
1515 #define	IDN_XSTATE_TRANSITION(dp, xs) \
1516 	{ \
1517 		int	_xs = (xs); \
1518 		(dp)->dxstate = _xs; \
1519 		if (_xs != IDNXS_NIL) { \
1520 			ASSERT((dp)->dxp); \
1521 			IDN_DSTATE_TRANSITION((dp), \
1522 				(dp)->dxp->xt_trans[_xs].t_state); \
1523 		} \
1524 	}
1525 
1526 /*
1527  * ---------------------------------------------------------------------
1528  * IDN Per-Domain Data
1529  *
1530  * The comment to the right of the respective field represents
1531  * what lock protects that field.  If there is no comment then
1532  * no lock is required to access the field.
1533  * ---------------------------------------------------------------------
1534  */
1535 
1536 #define	MAXDNAME	32
1537 
1538 typedef struct idn_domain {
1539 	krwlock_t	drwlock;
1540 			/*
1541 			 * Assigned domid for domain.  Never
1542 			 * changes once idn_domain[] is
1543 			 * initialized.  We are guaranteed that
1544 			 * all domains in IDN will have a
1545 			 * uniqueue domid in the range (0-15).
1546 			 */
1547 	int		domid;
1548 	idn_dstate_t	dstate;			/* drwlock */
1549 	idn_xstate_t	dxstate;		/* drwlock */
1550 			/*
1551 			 * Gotten from uname -n for local
1552 			 * domain.  Remote domains pass
1553 			 * theirs during Config phase.
1554 			 */
1555 	char		dname[MAXDNAME];	/* drwlock */
1556 			/*
1557 			 * IDN-wide unique identifier for the
1558 			 * given domain.  This value will be
1559 			 * the same as the domid.
1560 			 */
1561 	ushort_t	dnetid;			/* drwlock */
1562 	idn_vote_t	dvote;			/* drwlock */
1563 			/*
1564 			 * Used during FIN sequenece to
1565 			 * determine what type of shutdown
1566 			 * (unlink) we're executing with
1567 			 * respect to the given domain.
1568 			 */
1569 	idn_fin_t	dfin;			/* drwlock */
1570 			/*
1571 			 * A non-zero value for dfin_sync
1572 			 * indicates that unlink of respective
1573 			 * domain does not need to be performed
1574 			 * synchronously among all the IDN
1575 			 * member domains.
1576 			 */
1577 	short		dfin_sync;		/* grwlock */
1578 			/*
1579 			 * Cookie used to determine the
1580 			 * proper context in which we're
1581 			 * receiving messages from the given
1582 			 * domain.  Assigned cookies are exchanged
1583 			 * during initial NEGO messages.
1584 			 */
1585 	ushort_t	dcookie_send;		/* drwlock */
1586 	ushort_t	dcookie_recv;		/* drwlock */
1587 	short		dcookie_err;		/* drwlock */
1588 	int		dcookie_errcnt;		/* drwlock */
1589 			/*
1590 			 * Primary target cpu for sending
1591 			 * messages.  Can change to help
1592 			 * distribute interrupts on receiving
1593 			 * side.
1594 			 */
1595 	int		dcpu;			/* drwlock */
1596 			/*
1597 			 * Used to store dcpu from a previous
1598 			 * life.  Only used when requesting
1599 			 * a RELINK with a domain we were just
1600 			 * previously linked with.  Thus, it
1601 			 * does represent a valid cpu in the
1602 			 * remote domain.
1603 			 */
1604 	int		dcpu_save;		/* drwlock */
1605 			/*
1606 			 * Used to store from which cpu the
1607 			 * last message was received.
1608 			 */
1609 	int		dcpu_last;
1610 			/*
1611 			 * Transition phase area.  This field
1612 			 * points to the proper phase structure
1613 			 * depending on what stage the given
1614 			 * domain is in.
1615 			 */
1616 	idn_xphase_t	*dxp;			/* drwlock */
1617 			/*
1618 			 * Actual synchronization object for
1619 			 * the given domain.
1620 			 */
1621 	idn_syncop_t	dsync;	/* drwlock & idn.sync.sz_mutex */
1622 			/*
1623 			 * Slab information for given domain.
1624 			 * If the local domain is a master,
1625 			 * then this field in each domain is used
1626 			 * to store which slabs have been assigned
1627 			 * to given domain.  If the local domain
1628 			 * is a slave, then this information is
1629 			 * NULL for all remote idn_domain[]
1630 			 * entries, but for local domain holds
1631 			 * those slabs assigned to local domain.
1632 			 */
1633 	smr_slab_t	*dslab;			/* dslab_rwlock */
1634 	short		dnslabs;		/* dslab_rwlock */
1635 	short		dslab_state;		/* dslab_rwlock */
1636 	krwlock_t	dslab_rwlock;
1637 			/*
1638 			 * Set of cpus belonging to domain.
1639 			 */
1640 	cpuset_t	dcpuset;		/* drwlock */
1641 
1642 	int		dncpus;			/* drwlock */
1643 			/*
1644 			 * Index into dcpumap to determine
1645 			 * which cpu to target next for
1646 			 * interrupt.  Intended to allow fair
1647 			 * distribution of interrupts on
1648 			 * remote domain.
1649 			 */
1650 	uint_t		dcpuindex;		/* drwlock */
1651 			/*
1652 			 * Quick look-up map of cpus belonging
1653 			 * to domain.  Used to select next target.
1654 			 */
1655 	uchar_t		*dcpumap;		/* drwlock */
1656 			/*
1657 			 * Non-zero indicates outstanding
1658 			 * I/O's to given domain.
1659 			 */
1660 	int		dio;			/* drwlock */
1661 	int		dioerr;			/* drwlock */
1662 			/*
1663 			 * Set when we fail to allocate a buffer
1664 			 * for a domain.  Dictates whether to
1665 			 * reclaim max buffers or not.
1666 			 */
1667 	lock_t		diowanted;
1668 			/*
1669 			 * Set when remote domain does not
1670 			 * seem to be picking up messages sent
1671 			 * to it.  Non-zero indicates we have
1672 			 * an outstanding "ping" to domain.
1673 			 */
1674 	lock_t		diocheck;		/* drwlock */
1675 	short		dslabsize;		/* drwlock */
1676 	uint_t		dmtu;			/* drwlock */
1677 
1678 	uint_t		dbufsize;		/* drwlock */
1679 	short		dnwrsize;		/* drwlock */
1680 	lock_t		dreclaim_inprogress;	/* drwlock */
1681 	uchar_t		dreclaim_index;		/* drwlock */
1682 			/*
1683 			 * The following field is primarily
1684 			 * used during CFG exchange to keep
1685 			 * track of certain per-domain information.
1686 			 */
1687 	union {					/* all - drwlock */
1688 		struct {
1689 			uint_t	_dcfgphase	: 6;
1690 			uint_t	_dcfgsnddone	: 1;
1691 			uint_t	_dcfgrcvdone	: 1;
1692 			uint_t	_dcksum		: 2;
1693 			uint_t	_dmaxnets	: 6;
1694 			uint_t	_dmboxpernet	: 9;
1695 			uint_t	_dncfgitems	: 6;
1696 			uint_t	_drecfg		: 1;
1697 			} _s;
1698 		int	_dtmp;
1699 	} _u;
1700 			/*
1701 			 * Each domain entry maintains a
1702 			 * timer queue holding timers for
1703 			 * messages outstanding to that domain.
1704 			 */
1705 	struct idn_timerq {
1706 		int		tq_cookie;	/* tq_mutex */
1707 		kmutex_t	tq_mutex;
1708 		int		tq_count;	/* tq_mutex */
1709 		idn_timer_t	*tq_queue;	/* tq_mutex */
1710 	} dtimerq;
1711 			/*
1712 			 * dawol is used to keep
1713 			 * track of AWOL details for
1714 			 * given domain when it is
1715 			 * non-responsive.
1716 			 */
1717 	struct {
1718 		int		a_count;	/* drwlock */
1719 		clock_t		a_time;		/* drwlock */
1720 		clock_t		a_last;		/* drwlock */
1721 		clock_t		a_msg;		/* drwlock */
1722 	} dawol;
1723 
1724 	struct hwconfig	{
1725 		short		dh_nboards;	/* drwlock */
1726 		short		dh_nmcadr;	/* drwlock */
1727 		boardset_t	dh_boardset;	/* drwlock */
1728 		uint_t		dh_mcadr[MAX_BOARDS];	/* drwlock */
1729 	} dhw;
1730 			/*
1731 			 * Mailbox information used to
1732 			 * send/recv messages to given domain.
1733 			 */
1734 	struct {
1735 		kmutex_t		m_mutex;
1736 		struct idn_mboxtbl	*m_tbl;		/* m_mutex */
1737 		struct idn_mainmbox	*m_send;	/* m_mutex */
1738 		struct idn_mainmbox	*m_recv;	/* m_mutex */
1739 	} dmbox;
1740 } idn_domain_t;
1741 
1742 typedef struct idn_timerq	idn_timerq_t;
1743 
1744 #define	dcfgphase	_u._s._dcfgphase
1745 #define	dcfgsnddone	_u._s._dcfgsnddone
1746 #define	dcfgrcvdone	_u._s._dcfgrcvdone
1747 #define	dcksum		_u._s._dcksum
1748 #define	dmaxnets	_u._s._dmaxnets
1749 #define	dmboxpernet	_u._s._dmboxpernet
1750 #define	dncfgitems	_u._s._dncfgitems
1751 #define	drecfg		_u._s._drecfg
1752 #define	dbindport	_u._dbindport
1753 #define	dconnected	_u._dconnected
1754 #define	dtmp		_u._dtmp
1755 
1756 #define	IDN_DLOCK_EXCL(dd)	(rw_enter(&idn_domain[dd].drwlock, RW_WRITER))
1757 #define	IDN_DLOCK_SHARED(dd)	(rw_enter(&idn_domain[dd].drwlock, RW_READER))
1758 #define	IDN_DLOCK_TRY_SHARED(dd) \
1759 				(rw_tryenter(&idn_domain[dd].drwlock, \
1760 						RW_READER))
1761 #define	IDN_DLOCK_DOWNGRADE(dd)	(rw_downgrade(&idn_domain[dd].drwlock))
1762 #define	IDN_DUNLOCK(dd)		(rw_exit(&idn_domain[dd].drwlock))
1763 #define	IDN_DLOCK_IS_EXCL(dd)	(RW_WRITE_HELD(&idn_domain[dd].drwlock))
1764 #define	IDN_DLOCK_IS_SHARED(dd)	(RW_READ_HELD(&idn_domain[dd].drwlock))
1765 #define	IDN_DLOCK_IS_HELD(dd)	(RW_LOCK_HELD(&idn_domain[dd].drwlock))
1766 
1767 #define	IDN_MBOX_LOCK(dd)	(mutex_enter(&idn_domain[dd].dmbox.m_mutex))
1768 #define	IDN_MBOX_UNLOCK(dd)	(mutex_exit(&idn_domain[dd].dmbox.m_mutex))
1769 
1770 #define	IDN_RESET_COOKIES(dd) \
1771 	(idn_domain[dd].dcookie_send = idn_domain[dd].dcookie_recv = 0)
1772 
1773 #define	DSLAB_STATE_UNKNOWN	0
1774 #define	DSLAB_STATE_LOCAL	1
1775 #define	DSLAB_STATE_REMOTE	2
1776 
1777 #define	DSLAB_READ_HELD(d)	RW_READ_HELD(&idn_domain[d].dslab_rwlock)
1778 #define	DSLAB_WRITE_HELD(d)	RW_WRITE_HELD(&idn_domain[d].dslab_rwlock)
1779 
1780 #define	DSLAB_LOCK_EXCL(d) \
1781 		rw_enter(&idn_domain[d].dslab_rwlock, RW_WRITER)
1782 #define	DSLAB_LOCK_SHARED(d) \
1783 		rw_enter(&idn_domain[d].dslab_rwlock, RW_READER)
1784 #define	DSLAB_LOCK_TRYUPGRADE(d) \
1785 		rw_tryupgrade(&idn_domain[d].dslab_rwlock)
1786 #define	DSLAB_UNLOCK(d)		rw_exit(&idn_domain[d].dslab_rwlock)
1787 
1788 /*
1789  * ---------------------------------------------------------------------
1790  * Macro to pick another target for the given domain.  This hopefully
1791  * improves performance by better distributing the SSI responsibilities
1792  * at the target domain.
1793  * ---------------------------------------------------------------------
1794  */
1795 #define	BUMP_INDEX(set, index) \
1796 	{ \
1797 		register int	p; \
1798 		for (p = (index)+1; p < NCPU; p++) \
1799 			if (CPU_IN_SET((set), p)) \
1800 				break; \
1801 		if (p >= NCPU) \
1802 			for (p = 0; p <= (index); p++) \
1803 				if (CPU_IN_SET((set), p)) \
1804 					break; \
1805 		if (!CPU_IN_SET((set), p)) { \
1806 			uint_t	_u32, _l32; \
1807 			_u32 = UPPER32_CPUMASK(set); \
1808 			_l32 = LOWER32_CPUMASK(set); \
1809 			cmn_err(CE_PANIC, \
1810 				"IDN: cpu %d not in cpuset 0x%x.%0x\n", \
1811 				p, _u32, _l32); \
1812 		} \
1813 		(index) = p; \
1814 	}
1815 
1816 #define	IDN_ASSIGN_DCPU(dp, cookie) \
1817 		((dp)->dcpu = (int)((dp)->dcpumap[(cookie) & (NCPU-1)]))
1818 
1819 /*
1820  * ---------------------------------------------------------------------
1821  * Atomic increment/decrement, swap, compare-swap functions.
1822  * ---------------------------------------------------------------------
1823  */
1824 #define	ATOMIC_INC(v)		atomic_inc_32((uint_t *)&(v))
1825 #define	ATOMIC_DEC(v)		atomic_dec_32((uint_t *)&(v))
1826 #define	ATOMIC_SUB(v, n)	atomic_add_32((uint_t *)&(v), -(n))
1827 #define	ATOMIC_CAS(a, c, n)	atomic_cas_32((uint32_t *)(a), (uint32_t)(c), \
1828 								(uint32_t)(n))
1829 #define	ATOMIC_SWAPL(a, v)	atomic_swap_32((uint32_t *)(a), (uint32_t)(v))
1830 
1831 /*
1832  * DMV vector interrupt support.
1833  *
1834  * A fixed-size circular buffer is maintained as a queue of
1835  * incoming interrupts.  The low-level idn_dmv_handler() waits
1836  * for an entry to become FREE and will atomically mark it INUSE.
1837  * Once he has filled in the appropriate fields it will be marked
1838  * as READY.  The high-level idn_handler() will be invoked and will
1839  * process all messages in the queue that are READY.  Each message
1840  * is marked PROCESS, a protojob job created and filled in, and
1841  * then the interrupt message is marked FREE for use in the next
1842  * interrupt.  The iv_state field is used to hold the relevant
1843  * state and is updated atomically.
1844  */
1845 #define	IDN_PIL			PIL_8
1846 #define	IDN_DMV_PENDING_MAX	128	/* per cpu */
1847 
1848 #endif /* !_ASM */
1849 
1850 #ifndef _ASM
1851 
1852 /*
1853  * The size of this structure must be a power of 2
1854  * so that we can do a simple shift to calculate
1855  * our offset into based on cpuid.
1856  */
1857 typedef struct idn_dmv_cpu {
1858 	uint32_t	idn_dmv_current;
1859 	int32_t		idn_dmv_lostintr;
1860 	lock_t		idn_dmv_active;
1861 	char		_padding[(2 * sizeof (uint64_t)) - \
1862 				sizeof (uint32_t) - \
1863 				sizeof (lock_t) - \
1864 				sizeof (int32_t)];
1865 } idn_dmv_cpu_t;
1866 
1867 typedef struct idn_dmv_data {
1868 	uint_t		idn_soft_inum;
1869 	uint64_t	idn_dmv_qbase;
1870 	idn_dmv_cpu_t	idn_dmv_cpu[NCPU];
1871 } idn_dmv_data_t;
1872 
1873 /*
1874  * Requirements of the following data structure:
1875  *	- MUST be double-word (8 bytes) aligned.
1876  *	- _iv_head field MUST start on double-word boundary.
1877  *	- iv_xargs0 MUST start on double-word boundary
1878  *	  with iv_xargs1 immediately following.
1879  *	- iv_xargs2 MUST start on double-word boundary
1880  *	  with iv_xargs3 immediately following.
1881  */
1882 typedef struct idn_dmv_msg {
1883 	uint32_t	iv_next;	/* offset */
1884 	uchar_t		iv_inuse;
1885 	uchar_t		iv_ready;
1886 	ushort_t	_padding;
1887 	uint32_t	iv_head	  : 16;
1888 	uint32_t	iv_cookie : 16;
1889 	uint32_t	iv_ver    : 8;
1890 	uint32_t	iv_mtype  : 6;
1891 	uint32_t	iv_atype  : 6;
1892 	uint32_t	iv_domid  : 4;
1893 	uint32_t	iv_cpuid  : 8;
1894 	uint32_t	iv_xargs0;
1895 	uint32_t	iv_xargs1;
1896 	uint32_t	iv_xargs2;
1897 	uint32_t	iv_xargs3;
1898 } idn_dmv_msg_t;
1899 
1900 extern uint_t	idn_dmv_inum;
1901 extern uint_t	idn_soft_inum;
1902 
1903 /*
1904  * An IDN-network address has the following format:
1905  *
1906  *	31......16,15........0
1907  *	| channel |  dnetid  |
1908  *	----------------------
1909  * channel	- network interface.
1910  * netid	- idn_domain[].dnetid
1911  */
1912 #define	IDN_MAXMAX_NETS		32
1913 #define	IDN_BROADCAST_ALLCHAN	((ushort_t)-1)
1914 #define	IDN_BROADCAST_ALLNETID	((ushort_t)-1)
1915 
1916 typedef union {
1917 	struct {
1918 		ushort_t	chan;
1919 		ushort_t	netid;
1920 	} net;
1921 	uint_t	netaddr;
1922 } idn_netaddr_t;
1923 
1924 #define	CHANSET_ALL	(~((idn_chanset_t)0))
1925 #define	CHANSET(c) \
1926 		((idn_chanset_t)1 << ((c) & 31))
1927 #define	CHAN_IN_SET(m, c) \
1928 		(((m) & ((idn_chanset_t)1 << ((c) & 31))) != 0)
1929 #define	CHANSET_ADD(m, c) \
1930 		((m) |= ((idn_chanset_t)1 << ((c) & 31)))
1931 #define	CHANSET_DEL(m, c) \
1932 		((m) &= ~((idn_chanset_t)1 << ((c) & 31)))
1933 #define	CHANSET_ZERO(m)	((m) = 0)
1934 
1935 typedef enum {
1936 /*  0 */	IDNCHAN_OPEN,
1937 /*  1 */	IDNCHAN_SOFT_CLOSE,
1938 /*  2 */	IDNCHAN_HARD_CLOSE,
1939 /*  3 */	IDNCHAN_OFFLINE,
1940 /*  4 */	IDNCHAN_ONLINE
1941 } idn_chanop_t;
1942 
1943 /*
1944  * Retry support.
1945  */
1946 #define	IDN_RETRY_TOKEN(d, x)		((((d) & 0xf) << 16) | \
1947 					(0xffff & (uint_t)(x)))
1948 #define	IDN_RETRY_TOKEN2DOMID(t)	((int)(((t) >> 16) & 0xf))
1949 #define	IDN_RETRY_TOKEN2TYPE(t)		((idn_retry_t)((t) & 0xffff))
1950 #define	IDN_RETRY_TYPEALL		((idn_retry_t)0xffff)
1951 #define	IDN_RETRY_INTERVAL		hz	/* 1 sec */
1952 #define	IDN_RETRY_RECFG_MULTIPLE	10
1953 
1954 #define	IDN_RETRYINTERVAL_NEGO		(2 * hz)
1955 #define	IDN_RETRYINTERVAL_CON		(2 * hz)
1956 #define	IDN_RETRYINTERVAL_FIN		(2 * hz)
1957 
1958 typedef struct idn_retry_job {
1959 	struct idn_retry_job	*rj_prev;
1960 	struct idn_retry_job	*rj_next;
1961 	void			(*rj_func)(uint_t token, void *arg);
1962 	void			*rj_arg;
1963 	uint_t			rj_token;
1964 	short			rj_onq;
1965 	timeout_id_t		rj_id;
1966 } idn_retry_job_t;
1967 
1968 #define	IDNRETRY_ALLOCJOB() \
1969 	((idn_retry_job_t *)kmem_cache_alloc(idn.retryqueue.rq_cache, KM_SLEEP))
1970 #define	IDNRETRY_FREEJOB(j) \
1971 	(kmem_cache_free(idn.retryqueue.rq_cache, (void *)(j)))
1972 
1973 typedef enum {
1974 /*  0 */	IDNRETRY_NIL = 0,
1975 /*  1 */	IDNRETRY_NEGO,
1976 /*  2 */	IDNRETRY_CON,
1977 /*  3 */	IDNRETRY_CONQ,		/* for CON queries */
1978 /*  4 */	IDNRETRY_FIN,
1979 /*  5 */	IDNRETRY_FINQ,		/* for FIN queries */
1980 /*  6 */	IDN_NUM_RETRYTYPES
1981 } idn_retry_t;
1982 
1983 /*
1984  * ---------------------------------------------------------------------
1985  */
1986 typedef struct {
1987 	int		m_domid;
1988 	int		m_cpuid;
1989 	ushort_t	m_msgtype;
1990 	ushort_t	m_acktype;
1991 	ushort_t	m_cookie;
1992 	idn_xdcargs_t	m_xargs;
1993 } idn_protomsg_t;
1994 
1995 typedef struct idn_protojob {
1996 	struct idn_protojob	*j_next;
1997 	int			j_cache;
1998 	idn_protomsg_t		j_msg;
1999 } idn_protojob_t;
2000 
2001 typedef struct idn_protoqueue {
2002 	struct idn_protoqueue	*q_next;
2003 	idn_protojob_t		*q_joblist;
2004 	idn_protojob_t		*q_joblist_tail;
2005 	int			q_die;
2006 	int			q_id;
2007 	ksema_t			*q_morgue;
2008 	kthread_id_t		q_threadp;
2009 	kcondvar_t		q_cv;
2010 	kmutex_t		q_mutex;
2011 } idn_protoqueue_t;
2012 
2013 #define	IDN_PROTOCOL_NSERVERS		4
2014 #define	IDN_PROTOCOL_SERVER_HASH(d)	((d) % idn.nservers)
2015 #define	IDN_PROTOJOB_CHUNKS		(idn.nservers)
2016 
2017 /*
2018  * ---------------------------------------------------------------------
2019  * Data Server definitions.
2020  *
2021  *	idn_datasvr_t 	- Describes data server thread.
2022  *	. ds_id			- Per-domain identifier for data server.
2023  *	. ds_domid		- Domain which data server is handling.
2024  *	. ds_state		- Flag to enable/disable/terminate
2025  *				  data server.
2026  *	. ds_mboxp		- Pointer to data server's (local)
2027  *				  mailbox to be serviced.
2028  *	. ds_waittime		- cv_timedwait sleep time before
2029  *				  checking respective mailbox.
2030  *	. ds_threadp		- Pointer to data server thread.
2031  *	. ds_cv			- Condvar for sleeping.
2032  *	. ds_morguep		- Semaphore for terminating thread.
2033  *
2034  *	idn_mboxhdr_t	- Resides in SMR space (MUST be cache_linesize).
2035  *	. mh_svr_active		- Non-zero indicates data server is
2036  *				  actively reading mailbox for messages.
2037  *	. mh_svr_ready		- Non-zero indicates data server has
2038  *				  allocated and is ready to accept data.
2039  *	. mh_cookie		- Identifier primarily for debug purposes.
2040  *
2041  *	idn_mboxmsg_t	- Entry in the SMR space circular queue use to
2042  *			  represent a data packet.
2043  *	. mm_owner		- Non-zero indicates entry is available
2044  *				  to be processed by receiver's data server.
2045  *	. mm_flag		- Indicates whether entry needs to be
2046  *				  reclaimed by the sender.  Also holds error
2047  *				  indications (e.g. bad offset).
2048  *	. mm_offset		- SMR offset of respective data packet.
2049  *
2050  *	idn_mboxtbl_t	- Encapsulation of a per-domain mailbox (SMR space).
2051  *	. mt_header		- Header information for synchronization.
2052  *	. mt_queue		- Circular queue of idn_mboxmsg_t entries.
2053  *
2054  *	idn_mainmbox_t	- Encapsulation of main SMR recv/send mailboxes.
2055  *	. mm_mutex		- Protects mm_* entries, enqueuing, and
2056  *				  dequeuing of messages.  Also protects
2057  *				  updates to the route table pointed to
2058  *				  by mm_routetbl.
2059  *	. mm_count		- send: Current number of messages
2060  *					enqueued.
2061  *				- recv: Cumulative number of messages
2062  *					processed.
2063  *	. mm_max_count		- send: Maximum number of messages
2064  *					enqueued per iteration.
2065  *				  recv: Maximum number of messages
2066  *					dequeued per iteration.
2067  *	. mm_smr_mboxp		- Pointer to SMR (vaddr) space where
2068  *				  respective mailbox resides.
2069  * ---------------------------------------------------------------------
2070  */
2071 #define	IDN_MBOXHDR_COOKIE_TOP		((uint_t)0xc0c0)
2072 #define	IDN_MAKE_MBOXHDR_COOKIE(pd, sd, ch) \
2073 				((IDN_MBOXHDR_COOKIE_TOP << 16) \
2074 				| (((uint_t)(pd) & 0xf) << 12) \
2075 				| (((uint_t)(sd) & 0xf) << 8) \
2076 				| ((uint_t)(ch) & 0xf))
2077 #define	IDN_GET_MBOXHDR_COOKIE(mhp) \
2078 				((mhp)->mh_cookie & ~0xff00)
2079 #define	VALID_MBOXHDR(mhp, ch, cksum) \
2080 	((IDN_GET_MBOXHDR_COOKIE(mhp) == \
2081 			IDN_MAKE_MBOXHDR_COOKIE(0, 0, (ch))) && \
2082 	((cksum) == (*(mhp)).mh_cksum))
2083 /*
2084  * The number of entries in a mailbox queue must be chosen so
2085  * that (IDN_MMBOX_NUMENTRIES * sizeof (idn_mboxmsg_t)) is a multiple
2086  * of a cacheline size (64).
2087  */
2088 #define	IDN_MMBOX_NUMENTRIES		IDN_MBOX_PER_NET
2089 /*
2090  * We step through the mailboxes in effectively cacheline size
2091  * incremenents so that the source and receiving cpus are not competing
2092  * for the same cacheline when transmitting/receiving messages into/from
2093  * the mailboxes.  The hard requirement is that the step value be even
2094  * since the mailbox size will be chosen odd.  This allows us to wraparound
2095  * the mailbox uniquely touching each entry until we've exhausted them
2096  * all at which point we'll end up where we initially started and repeat
2097  * again.
2098  */
2099 #define	IDN_MMBOXINDEX_STEP	(((64 / sizeof (idn_mboxmsg_t)) + 1) & 0xfffe)
2100 #define	IDN_MMBOXINDEX_INC(i) \
2101 	{ \
2102 		if (((i) += IDN_MMBOXINDEX_STEP) >= IDN_MMBOX_NUMENTRIES) \
2103 			(i) -= IDN_MMBOX_NUMENTRIES; \
2104 	}
2105 
2106 #define	IDN_MMBOXINDEX_DIFF(i, j) \
2107 	(((i) >= (j)) ? (((i) - (j)) / IDN_MMBOXINDEX_STEP) \
2108 		: ((((i) + IDN_MMBOX_NUMENTRIES) - (j)) / IDN_MMBOXINDEX_STEP))
2109 
2110 /*
2111  * Require IDN_MBOXAREA_SIZE <= IDN_SLAB_SIZE so we don't waste
2112  * slab space.
2113  *
2114  * Each domain maintains a MAX_DOMAIN(16) entry mbox_table.  Each
2115  * entry represents a receive mailbox for a possible domain to which
2116  * the given domain may have a connection.  The send mailbox for each
2117  * respective domain is given to the local domain at the time of
2118  * connection establishment.
2119  */
2120 
2121 /*
2122  * ---------------------------------------------------------------------
2123  */
2124 #define	IDN_MBOXTBL_SIZE \
2125 	(IDNROUNDUP(((IDN_MBOX_PER_NET * sizeof (idn_mboxmsg_t)) \
2126 			+ sizeof (idn_mboxhdr_t)), IDN_ALIGNSIZE))
2127 
2128 /*
2129  * ---------------------------------------------------------------------
2130  * Each domain has idn_max_nets worth of possible mailbox tables
2131  * for each domain to which it might possibly be connected.
2132  * ---------------------------------------------------------------------
2133  */
2134 #define	IDN_MBOXAREA_SIZE \
2135 	(IDN_MBOXTBL_SIZE * IDN_MAX_NETS * MAX_DOMAINS * MAX_DOMAINS)
2136 #define	IDN_MBOXAREA_OFFSET(d) \
2137 	((d) * IDN_MBOXTBL_SIZE * IDN_MAX_NETS * MAX_DOMAINS)
2138 
2139 /*
2140  * ---------------------------------------------------------------------
2141  * Return the base of the mailbox area (set of tables) assigned
2142  * to the given domain id.
2143  * ---------------------------------------------------------------------
2144  */
2145 #define	IDN_MBOXAREA_BASE(m, d) \
2146 	((idn_mboxtbl_t *)(((ulong_t)(m)) + IDN_MBOXAREA_OFFSET(d)))
2147 
2148 /*
2149  * ---------------------------------------------------------------------
2150  * Return the pointer to the respective receive mailbox (table set)
2151  * for the given domain id relative to the given base mailbox table.
2152  * ---------------------------------------------------------------------
2153  */
2154 #define	IDN_MBOXTBL_PTR(t, d)	\
2155 	((idn_mboxtbl_t *)(((ulong_t)(t)) + ((d) * IDN_MBOXTBL_SIZE \
2156 				* IDN_MAX_NETS)))
2157 /*
2158  * ---------------------------------------------------------------------
2159  * Return the pointer to the actual target mailbox based on the
2160  * given channel in the given mailbox table.
2161  * ---------------------------------------------------------------------
2162  */
2163 #define	IDN_MBOXTBL_PTR_CHAN(t, c) \
2164 	((idn_mboxtbl_t *)(((ulong_t)(t)) + ((c) * IDN_MBOXTBL_SIZE)))
2165 
2166 #define	IDN_MBOXTBL_PTR_INC(t)	\
2167 	((t) = (idn_mboxtbl_t *)(((ulong_t)(t)) + IDN_MBOXTBL_SIZE))
2168 
2169 #define	IDN_MBOXCHAN_INC(i) \
2170 	{ \
2171 		if (++(i) == IDN_MAX_NETS) \
2172 			(i) = 0; \
2173 	}
2174 
2175 /*
2176  * ---------------------------------------------------------------------
2177  * Return the absolute location within the entire mailbox area
2178  * of the mboxtbl for the given primary and secondary domain and
2179  * channel.  Only relevant when done by the master.
2180  * ---------------------------------------------------------------------
2181  */
2182 #define	IDN_MBOXTBL_ABS_PTR(mt, pd, sd, ch) \
2183 		(IDN_MBOXTBL_PTR_CHAN( \
2184 			IDN_MBOXTBL_PTR( \
2185 				IDN_MBOXAREA_BASE((mt), (pd)), \
2186 				(sd)), \
2187 			(ch)))
2188 
2189 #define	IDN_BFRAME_SHIFT	idn.bframe_shift
2190 #define	IDN_BFRAME2OFFSET(bf)	((bf) << IDN_BFRAME_SHIFT)
2191 #define	IDN_BFRAME2ADDR(bf)	IDN_OFFSET2ADDR(IDN_BFRAME2OFFSET(bf))
2192 #define	IDN_OFFSET2BFRAME(off)	(((off) >> IDN_BFRAME_SHIFT) & 0xffffff)
2193 #define	IDN_ADDR2BFRAME(addr)	IDN_OFFSET2BFRAME(IDN_ADDR2OFFSET(addr))
2194 
2195 typedef struct idn_mboxmsg {
2196 	uint_t		ms_owner  : 1,
2197 			ms_flag   : 7,
2198 			ms_bframe : 24;
2199 } idn_mboxmsg_t;
2200 
2201 typedef idn_mboxmsg_t	idn_mboxq_t[1];
2202 
2203 #define	IDN_CKSUM_MBOX_COUNT	\
2204 			(((int)&((idn_mboxhdr_t *)(0))->mh_svr_ready) / 2)
2205 #define	IDN_CKSUM_MBOX(h)	\
2206 			(IDN_CHECKSUM ? \
2207 			idn_cksum((ushort_t *)(h), IDN_CKSUM_MBOX_COUNT) : 0)
2208 
2209 typedef struct idn_mboxhdr {
2210 	uint_t		mh_cookie;
2211 	uint_t		mh_svr_ready_ptr;
2212 	uint_t		mh_svr_active_ptr;
2213 	ushort_t	mh_svr_ready;
2214 	ushort_t	mh_svr_active;
2215 
2216 	uint_t		_padding[(64 -
2217 				(4*sizeof (uint_t)) -
2218 				(2*sizeof (ushort_t))) / sizeof (uint_t)];
2219 
2220 	uint_t		mh_cksum;
2221 } idn_mboxhdr_t;
2222 
2223 typedef struct idn_mboxtbl {
2224 	idn_mboxhdr_t	mt_header;
2225 	idn_mboxq_t	mt_queue;
2226 } idn_mboxtbl_t;
2227 
2228 #define	IDN_CHAN_DOMAIN_REGISTER(csp, dom) \
2229 	(DOMAINSET_ADD((csp)->ch_reg_domset, (dom)))
2230 
2231 #define	IDN_CHAN_DOMAIN_UNREGISTER(csp, dom) \
2232 	(DOMAINSET_DEL((csp)->ch_reg_domset, (dom)))
2233 
2234 #define	IDN_CHAN_DOMAIN_IS_REGISTERED(csp, dom) \
2235 	(DOMAIN_IN_SET((csp)->ch_reg_domset, (dom)))
2236 
2237 #define	IDN_CHANSVR_SCANSET_ADD_PENDING(csp, dom) \
2238 	{ \
2239 		register int _d; \
2240 		register uint64_t _domset; \
2241 		(dom) &= MAX_DOMAINS - 1;   	/* Assumes power of 2 */ \
2242 		_domset = 0ull; \
2243 		for (_d = 0; _d < (csp)->ch_recv_domcount; _d++) { \
2244 			if ((int)(((csp)->ch_recv_scanset_pending >> \
2245 						(_d * 4)) & 0xf) == (dom)) \
2246 				break; \
2247 			else \
2248 				_domset = (_domset << 4) | 0xfull; \
2249 		} \
2250 		if (_d == (csp)->ch_recv_domcount) { \
2251 			_domset &= (csp)->ch_recv_scanset_pending; \
2252 			_domset |= (uint64_t)(dom) << \
2253 					((csp)->ch_recv_domcount * 4); \
2254 			(csp)->ch_recv_domcount++; \
2255 			(csp)->ch_recv_scanset_pending = 0ull; \
2256 			for (_d = 0; _d < 16; \
2257 					_d += (csp)->ch_recv_domcount) { \
2258 				(csp)->ch_recv_scanset_pending |= _domset; \
2259 				_domset <<= (csp)->ch_recv_domcount * 4; \
2260 			} \
2261 		} \
2262 	}
2263 #define	IDN_CHANSVR_SCANSET_DEL_PENDING(csp, dom) \
2264 	{ \
2265 		register int _d; \
2266 		register uint64_t _domset; \
2267 		(dom) &= MAX_DOMAINS - 1;	/* Assumes power of 2 */ \
2268 		_domset = 0ull; \
2269 		for (_d = 0; _d < (csp)->ch_recv_domcount; _d++) { \
2270 			if ((int)(((csp)->ch_recv_scanset_pending >> \
2271 						(_d * 4)) & 0xf) == (dom)) \
2272 				break; \
2273 			else \
2274 				_domset = (_domset << 4) | 0xfull; \
2275 		} \
2276 		if (_d < (csp)->ch_recv_domcount) { \
2277 			_domset &= (csp)->ch_recv_scanset_pending; \
2278 			(csp)->ch_recv_scanset_pending >>= 4; \
2279 			(csp)->ch_recv_domcount--; \
2280 			for (; _d < (csp)->ch_recv_domcount; _d++) \
2281 				_domset |= (csp)->ch_recv_scanset_pending &\
2282 						(0xfull << (_d * 4)); \
2283 			(csp)->ch_recv_scanset_pending = 0ull; \
2284 			if ((csp)->ch_recv_domcount) { \
2285 				for (_d = 0; _d < 16; \
2286 					_d += (csp)->ch_recv_domcount) { \
2287 					(csp)->ch_recv_scanset_pending |= \
2288 						_domset; \
2289 					_domset <<= \
2290 						(csp)->ch_recv_domcount * 4; \
2291 				} \
2292 			} \
2293 		} \
2294 	}
2295 
2296 #define	IDN_CHAN_TRYLOCK_GLOBAL(csp)	\
2297 		mutex_tryenter(&(csp)->ch_mutex)
2298 #define	IDN_CHAN_LOCK_GLOBAL(csp)	\
2299 		mutex_enter(&(csp)->ch_mutex)
2300 #define	IDN_CHAN_UNLOCK_GLOBAL(csp)	\
2301 		mutex_exit(&(csp)->ch_mutex)
2302 #define	IDN_CHAN_GLOBAL_IS_LOCKED(csp)	\
2303 		(MUTEX_HELD(&(csp)->ch_mutex))
2304 
2305 #define	IDN_CHAN_LOCAL_IS_LOCKED(csp)	\
2306 		(MUTEX_HELD(&(csp)->ch_send.c_mutex) && \
2307 		MUTEX_HELD(&(csp)->ch_recv.c_mutex))
2308 #define	IDN_CHAN_LOCK_LOCAL(csp)	\
2309 		(mutex_enter(&(csp)->ch_recv.c_mutex, \
2310 		mutex_enter(&(csp)->ch_send.c_mutex))
2311 #define	IDN_CHAN_UNLOCK_LOCAL(csp) 	\
2312 		(mutex_exit(&(csp)->ch_send.c_mutex), \
2313 		mutex_exit(&(csp)->ch_recv.c_mutex))
2314 
2315 #define	IDN_CHAN_RECV_IS_LOCKED(csp)	\
2316 		(MUTEX_HELD(&(csp)->ch_recv.c_mutex))
2317 #define	IDN_CHAN_TRYLOCK_RECV(csp) 	\
2318 		(mutex_tryenter(&(csp)->ch_recv.c_mutex))
2319 #define	IDN_CHAN_LOCK_RECV(csp) 	\
2320 		(mutex_enter(&(csp)->ch_recv.c_mutex))
2321 #define	IDN_CHAN_UNLOCK_RECV(csp) 	\
2322 		(mutex_exit(&(csp)->ch_recv.c_mutex))
2323 
2324 #define	IDN_CHAN_SEND_IS_LOCKED(csp)	\
2325 		(MUTEX_HELD(&(csp)->ch_send.c_mutex))
2326 #define	IDN_CHAN_TRYLOCK_SEND(csp) 	\
2327 		(mutex_tryenter(&(csp)->ch_send.c_mutex))
2328 #define	IDN_CHAN_LOCK_SEND(csp) 	\
2329 		(mutex_enter(&(csp)->ch_send.c_mutex))
2330 #define	IDN_CHAN_UNLOCK_SEND(csp) 	\
2331 		(mutex_exit(&(csp)->ch_send.c_mutex))
2332 
2333 /*
2334  * A channel table is an array of pointers to mailboxes
2335  * for the respective domains for the given channel.
2336  * Used a cache for the frequently used items.  Respective
2337  * fields in mainmbox are updated just prior to sleeping.
2338  */
2339 
2340 /*
2341  * Reading c_state requires either c_mutex or ch_mutex.
2342  * Writing c_state requires both c_mutex and ch_mutex in the order:
2343  *	ch_mutex
2344  *	c_mutex
2345  */
2346 typedef struct idn_chaninfo {
2347 	kmutex_t	c_mutex;
2348 	uchar_t		c_state;	/* protected by c_mutex */
2349 	uchar_t		c_checkin;	/* asynchronous flag */
2350 	kcondvar_t	c_cv;
2351 	ushort_t	c_waiters;	/* protected by c_mutex */
2352 	ushort_t	c_inprogress;	/* protected by c_mutex */
2353 } idn_chaninfo_t;
2354 
2355 /*
2356  * Reading/Writing ch_state requires ch_mutex.
2357  * When updating both recv and send c_state's for the locks
2358  * must be grabbed in the following order:
2359  *	ch_mutex
2360  *	ch_recv.c_mutex
2361  *	ch_send.c_mutex
2362  * This order is necessary to prevent deadlocks.
2363  * In general ch_state is intended to represent c_state of
2364  * individual send/recv sides.  During state transitions the
2365  * ch_state and c_state values may be slightly different,
2366  * but eventually should end up identical.
2367  */
2368 typedef struct idn_chansvr {
2369 	uchar_t		ch_id;
2370 	uchar_t		ch_state;	/* protected by ch_mutex */
2371 	lock_t		ch_initlck;
2372 	lock_t		ch_actvlck;
2373 	domainset_t	ch_reg_domset;
2374 	kmutex_t	ch_mutex;
2375 
2376 	idn_chaninfo_t	ch_send;
2377 	int		_padding2[(64 -
2378 				(2*sizeof (uchar_t)) - (2*sizeof (lock_t)) -
2379 				sizeof (uint_t) - sizeof (kmutex_t) -
2380 				sizeof (idn_chaninfo_t)) / sizeof (int)];
2381 
2382 	idn_chaninfo_t	ch_recv;
2383 
2384 	uint64_t	ch_recv_scanset;
2385 	uint64_t	ch_recv_scanset_pending;
2386 
2387 	domainset_t	ch_recv_domset;
2388 	domainset_t	ch_recv_domset_pending;
2389 	short		ch_recv_domcount;
2390 	kcondvar_t	ch_recv_cv;
2391 	int		ch_recv_waittime;
2392 	int		ch_recv_changed;
2393 
2394 	kthread_id_t	ch_recv_threadp;
2395 	ksema_t		*ch_recv_morguep;
2396 	int		ch_bound_cpuid;
2397 	int		ch_bound_cpuid_pending;
2398 } idn_chansvr_t;
2399 
2400 typedef struct idn_mainmbox {
2401 	kmutex_t	mm_mutex;
2402 	short		mm_channel;
2403 	short		mm_domid;
2404 	ushort_t	mm_flags;
2405 	short		mm_type;
2406 
2407 	idn_chansvr_t	*mm_csp;	/* non-NULL indicates reg'd */
2408 	int		mm_count;
2409 	int		mm_dropped;
2410 	idn_mboxtbl_t	*mm_smr_mboxp;		/* SMR vaddr */
2411 
2412 	ushort_t	*mm_smr_activep;	/* SMR pointer */
2413 	ushort_t	*mm_smr_readyp;		/* SMR pointer */
2414 	int		mm_qiget;	/* next msg to get */
2415 	int		mm_qiput;	/* next slot to put msg */
2416 } idn_mainmbox_t;
2417 
2418 /*
2419  * mm_flags
2420  */
2421 #define	IDNMMBOX_FLAG_CORRUPTED		0x01
2422 /*
2423  * mm_type
2424  */
2425 #define	IDNMMBOX_TYPE_RECV		0x1
2426 #define	IDNMMBOX_TYPE_SEND		0x2
2427 
2428 #define	IDNMBOX_IS_RECV(m)	((m) == IDNMMBOX_TYPE_RECV)
2429 #define	IDNMBOX_IS_SEND(m)	((m) == IDNMMBOX_TYPE_SEND)
2430 
2431 /*
2432  * Period between sending wakeup xdc's to remote domain.
2433  */
2434 #define	IDN_CHANNEL_WAKEUP_PERIOD	(hz >> 1)
2435 /*
2436  * ms_flag bit values.
2437  */
2438 #define	IDN_MBOXMSG_FLAG_RECLAIM	0x1	/* needs to be reclaimed */
2439 #define	IDN_MBOXMSG_FLAG_INPROCESS	0x2
2440 #define	IDN_MBOXMSG_FLAG_ERR_BADOFFSET	0x4
2441 #define	IDN_MBOXMSG_FLAG_ERR_NOMBOX	0x8
2442 #define	IDN_MBOXMSG_FLAG_ERRMASK	0xc
2443 /*
2444  * ch_state/c_state bit values.
2445  */
2446 #define	IDN_CHANSVC_STATE_ATTACHED	0x01
2447 #define	IDN_CHANSVC_STATE_ENABLED	0x02
2448 #define	IDN_CHANSVC_STATE_ACTIVE	0x04
2449 #define	IDN_CHANSVC_STATE_FLUSH		0x10
2450 #define	IDN_CHANSVC_STATE_CORRUPTED	0x20
2451 #define	IDN_CHANSVC_STATE_MASK		0x07	/* ATTACHED/ENABLED/ACTIVE */
2452 
2453 #define	IDN_CHANSVC_PENDING_BITS	(IDN_CHANSVC_STATE_ATTACHED | \
2454 					IDN_CHANSVC_STATE_ENABLED)
2455 
2456 /*
2457  * GLOBAL
2458  */
2459 #define	IDN_CHANNEL_IS_ATTACHED(csp)	\
2460 		((csp)->ch_state & IDN_CHANSVC_STATE_ATTACHED)
2461 #define	IDN_CHANNEL_IS_DETACHED(csp)	\
2462 		(!IDN_CHANNEL_IS_ATTACHED(csp))
2463 #define	IDN_CHANNEL_IS_PENDING(csp)	\
2464 		(((csp)->ch_state & IDN_CHANSVC_STATE_MASK) == \
2465 			IDN_CHANSVC_PENDING_BITS)
2466 #define	IDN_CHANNEL_IS_ACTIVE(csp)	\
2467 		((csp)->ch_state & IDN_CHANSVC_STATE_ACTIVE)
2468 #define	IDN_CHANNEL_IS_ENABLED(csp)	\
2469 		((csp)->ch_state & IDN_CHANSVC_STATE_ENABLED)
2470 /*
2471  * SEND
2472  */
2473 #define	IDN_CHANNEL_IS_SEND_ACTIVE(csp)	\
2474 		((csp)->ch_send.c_state & IDN_CHANSVC_STATE_ACTIVE)
2475 /*
2476  * RECV
2477  */
2478 #define	IDN_CHANNEL_IS_RECV_ACTIVE(csp)	\
2479 		((csp)->ch_recv.c_state & IDN_CHANSVC_STATE_ACTIVE)
2480 #define	IDN_CHANNEL_IS_RECV_CORRUPTED(csp) \
2481 		((csp)->ch_recv.c_state & IDN_CHANSVC_STATE_CORRUPTED)
2482 
2483 
2484 #define	IDN_CHAN_SEND_INPROGRESS(csp)	((csp)->ch_send.c_inprogress++)
2485 #define	IDN_CHAN_SEND_DONE(csp) \
2486 	{ \
2487 		ASSERT((csp)->ch_send.c_inprogress > 0); \
2488 		if ((--((csp)->ch_send.c_inprogress) == 0) && \
2489 					((csp)->ch_send.c_waiters != 0)) \
2490 			cv_broadcast(&(csp)->ch_send.c_cv); \
2491 	}
2492 #define	IDN_CHAN_RECV_INPROGRESS(csp)	((csp)->ch_recv.c_inprogress++)
2493 #define	IDN_CHAN_RECV_DONE(csp) \
2494 	{ \
2495 		ASSERT((csp)->ch_recv.c_inprogress > 0); \
2496 		if ((--((csp)->ch_recv.c_inprogress) == 0) && \
2497 					((csp)->ch_recv.c_waiters != 0)) \
2498 			cv_broadcast(&(csp)->ch_recv.c_cv); \
2499 	}
2500 
2501 #define	IDN_CHANSVC_MARK_ATTACHED(csp)	\
2502 		((csp)->ch_state = IDN_CHANSVC_STATE_ATTACHED)
2503 #define	IDN_CHANSVC_MARK_DETACHED(csp)	\
2504 		((csp)->ch_state = 0)
2505 #define	IDN_CHANSVC_MARK_PENDING(csp)	\
2506 		((csp)->ch_state |= IDN_CHANSVC_STATE_ENABLED)
2507 #define	IDN_CHANSVC_MARK_DISABLED(csp)	\
2508 		((csp)->ch_state &= ~IDN_CHANSVC_STATE_ENABLED)
2509 #define	IDN_CHANSVC_MARK_ACTIVE(csp)	\
2510 		((csp)->ch_state |= IDN_CHANSVC_STATE_ACTIVE)
2511 #define	IDN_CHANSVC_MARK_IDLE(csp)	\
2512 		((csp)->ch_state &= ~IDN_CHANSVC_STATE_ACTIVE)
2513 
2514 #define	IDN_CHANSVC_MARK_RECV_ACTIVE(csp)	\
2515 		((csp)->ch_recv.c_state |= IDN_CHANSVC_STATE_ACTIVE)
2516 #define	IDN_CHANSVC_MARK_RECV_CORRUPTED(csp)	\
2517 		((csp)->ch_recv.c_state |= IDN_CHANSVC_STATE_CORRUPTED)
2518 #define	IDN_CHANSVC_MARK_SEND_ACTIVE(csp)	\
2519 		((csp)->ch_send.c_state |= IDN_CHANSVC_STATE_ACTIVE)
2520 
2521 typedef enum {
2522 	IDNCHAN_ACTION_DETACH,		/* DETACH (ATTACHED = 0) */
2523 	IDNCHAN_ACTION_STOP,		/* DISABLE (ENABLED = 0) */
2524 	IDNCHAN_ACTION_SUSPEND,		/* IDLE (ACTIVE = 0) */
2525 	IDNCHAN_ACTION_RESUME,
2526 	IDNCHAN_ACTION_RESTART,
2527 	IDNCHAN_ACTION_ATTACH
2528 } idn_chanaction_t;
2529 
2530 #define	IDN_CHANNEL_SUSPEND(c, w)	\
2531 		(idn_chan_action((c), IDNCHAN_ACTION_SUSPEND, (w)))
2532 #define	IDN_CHANNEL_RESUME(c)		\
2533 		(idn_chan_action((c), IDNCHAN_ACTION_RESUME, 0))
2534 #define	IDN_CHANNEL_STOP(c, w)	\
2535 		(idn_chan_action((c), IDNCHAN_ACTION_STOP, (w)))
2536 #define	IDN_CHANNEL_RESTART(c)		\
2537 		(idn_chan_action((c), IDNCHAN_ACTION_RESTART, 0))
2538 #define	IDN_CHANNEL_DETACH(c, w)	\
2539 		(idn_chan_action((c), IDNCHAN_ACTION_DETACH, (w)))
2540 #define	IDN_CHANNEL_ATTACH(c)		\
2541 		(idn_chan_action((c), IDNCHAN_ACTION_ATTACH, 0))
2542 
2543 /*
2544  * ds_waittime range values.
2545  * When a packet arrives the waittime starts at MIN and gradually
2546  * shifts up to MAX until another packet arrives.  If still no
2547  * packet arrives then we go to a hard sleep
2548  */
2549 #define	IDN_NETSVR_SPIN_COUNT		idn_netsvr_spin_count
2550 #define	IDN_NETSVR_WAIT_MIN		idn_netsvr_wait_min
2551 #define	IDN_NETSVR_WAIT_MAX		idn_netsvr_wait_max
2552 #define	IDN_NETSVR_WAIT_SHIFT		idn_netsvr_wait_shift
2553 
2554 /*
2555  * ---------------------------------------------------------------------
2556  * IDN Global Data
2557  *
2558  * The comment to the right of the respective field represents
2559  * what lock protects that field.  If there is no comment then
2560  * no lock is required to access the field.
2561  * ---------------------------------------------------------------------
2562  */
2563 typedef struct idn_global {				/* protected by... */
2564 	krwlock_t	grwlock;
2565 			/*
2566 			 * Global state of IDN w.r.t.
2567 			 * the local domain.
2568 			 */
2569 	idn_gstate_t	state;			/* grwlock */
2570 			/*
2571 			 * Version of the IDN driver.
2572 			 * Is passed in DMV header so that
2573 			 * other domains can validate they
2574 			 * support protocol used by local
2575 			 * domain.
2576 			 */
2577 	int		version;
2578 			/*
2579 			 * Set to 1 if SMR region properly
2580 			 * allocated and available.
2581 			 */
2582 	int		enabled;
2583 			/*
2584 			 * Local domains "domain id".
2585 			 */
2586 	int		localid;
2587 			/*
2588 			 * Domain id of the Master domain.
2589 			 * Set to IDN_NIL_DOMID if none
2590 			 * currently exists.
2591 			 */
2592 	int		masterid;		/* grwlock */
2593 			/*
2594 			 * Primarily used during Reconfiguration
2595 			 * to track the expected new Master.
2596 			 * Once the current IDN is dismantled
2597 			 * the local domain will attempt to
2598 			 * connect to this new domain.
2599 			 */
2600 	int		new_masterid;		/* grwlock */
2601 			/*
2602 			 * Number of protocol servers configured.
2603 			 */
2604 	int		nservers;
2605 
2606 	dev_info_t	*dip;
2607 
2608 	struct {
2609 		/*
2610 		 * dmv_inum
2611 		 *	Interrupt number assigned by
2612 		 *	DMV subsystem to IDN's DMV
2613 		 *	handler.
2614 		 * soft_inum
2615 		 *	Soft interrupt number assigned
2616 		 *	by OS (add_softintr) for Soft
2617 		 *	interrupt dispatched by DMV
2618 		 *	handler.
2619 		 */
2620 		uint_t	dmv_inum;
2621 		uint_t	soft_inum;
2622 		caddr_t	dmv_data;
2623 		size_t	dmv_data_len;
2624 	} intr;
2625 			/*
2626 			 * first_swlink
2627 			 *	Used as synchronization to
2628 			 *	know whether channels need
2629 			 *	to be activated or not.
2630 			 * first_hwlink
2631 			 *	Used as mechanism to determine
2632 			 *	whether local domain needs
2633 			 *	to publicize its SMR, assuming
2634 			 *	it is the Master.
2635 			 * first_hwmaster
2636 			 *	Domainid of the domain that
2637 			 *	was the master at the time
2638 			 * 	the hardware was programmed.
2639 			 *	We need to keep this so that
2640 			 *	we deprogram with respect to
2641 			 *	the correct domain that the
2642 			 *	hardware was originally
2643 			 *	programmed to.
2644 			 */
2645 	lock_t		first_swlink;
2646 	lock_t		first_hwlink;
2647 	short		first_hwmasterid;
2648 			/*
2649 			 * The xmit* fields are used to set-up a background
2650 			 * thread to monitor when a channel is ready to be
2651 			 * enabled again.  This is necessary since IDN
2652 			 * can't rely on hardware to interrupt it when
2653 			 * things are ready to go.  We need this ability
2654 			 * to wakeup our STREAMS queues.
2655 			 * Criteria for reenabling queues.
2656 			 *	gstate == IDNGS_ONLINE
2657 			 *	channel = !check-in
2658 			 *	buffers are available
2659 			 *
2660 			 * xmit_chanset_wanted
2661 			 *	Indicates which channels wish to have
2662 			 *	their queues reenabled when ready.
2663 			 * xmit_tid
2664 			 *	Timeout-id of monitor.
2665 			 */
2666 	kmutex_t	xmit_lock;
2667 	idn_chanset_t	xmit_chanset_wanted;	/* xmit_lock */
2668 	timeout_id_t	xmit_tid;		/* xmit_lock */
2669 
2670 	struct {
2671 		/*
2672 		 * ready
2673 		 *	Indicates SMR region allocated
2674 		 *	and available from OBP.
2675 		 * vaddr
2676 		 *	Virtual address assigned to SMR.
2677 		 * locpfn
2678 		 *	Page Frame Number associated
2679 		 *	with local domain's SMR.
2680 		 * rempfn
2681 		 *	Page Frame Number associated
2682 		 *	with remote (Master) domain's SMR.
2683 		 * rempfnlim
2684 		 *	PFN past end of remote domain's
2685 		 *	SMR.
2686 		 * prom_paddr/prom_size
2687 		 *	Physical address and size of
2688 		 *	SMR that were assigned by OBP.
2689 		 */
2690 		int		ready;
2691 		caddr_t		vaddr;
2692 		pfn_t		locpfn;
2693 		pfn_t		rempfn;		/* grwlock */
2694 
2695 		pfn_t		rempfnlim;	/* grwlock */
2696 		uint64_t	prom_paddr;
2697 
2698 		uint64_t	prom_size;
2699 	} smr;
2700 
2701 			/*
2702 			 * idnsb_mutex
2703 			 *	Protects access to IDN's
2704 			 *	sigblock area.
2705 			 * idnsb_eventp
2706 			 *	IDN's private area in sigblock
2707 			 *	used for signaling events
2708 			 *	regarding IDN state to SSP.
2709 			 * idnsb
2710 			 *	Area within IDN's private
2711 			 *	sigblock area used for tracking
2712 			 *	certain IDN state which might
2713 			 *	be useful during arbstop
2714 			 *	conditions (if caused by IDN!).
2715 			 */
2716 	kmutex_t	idnsb_mutex;
2717 	idnsb_event_t	*idnsb_eventp;
2718 	idnsb_t		*idnsb;
2719 
2720 	struct sigbintr {
2721 		/*
2722 		 * sb_mutex
2723 		 *	Protects sigbintr elements
2724 		 *	to synchronize execution of
2725 		 *	sigblock (IDN) mailbox handling.
2726 		 * sb_cpuid
2727 		 *	Cpu whose sigblock mailbox
2728 		 *	originally received IDN request
2729 		 *	from SSP.  Necessary to know
2730 		 *	where to put response.
2731 		 * sb_busy
2732 		 *	Flag indicating state of
2733 		 *	sigblock handler thread.
2734 		 *	Synchronize activity between
2735 		 *	SSP and current IDN requests that
2736 		 *	are in progress.
2737 		 * sb_cv
2738 		 *	Condition variable for sigblock
2739 		 *	handler thread to wait on.
2740 		 * sb_inum
2741 		 *	Soft interrupt number assigned
2742 		 *	by OS to handle soft interrupt
2743 		 *	request make by low-level (IDN)
2744 		 *	sigblock handler to dispatch actual
2745 		 *	processing of sigblock (mailbox)
2746 		 *	request.
2747 		 */
2748 		kmutex_t	sb_mutex;
2749 		uchar_t		sb_cpuid;	/* sigbintr.sb_mutex */
2750 		uchar_t		sb_busy;	/* sigbintr.sb_mutex */
2751 		kcondvar_t	sb_cv;		/* sigbintr.sb_mutex */
2752 		uint_t		sb_inum;	/* sigbintr.sb_mutex */
2753 	} sigbintr;
2754 
2755 			/*
2756 			 * struprwlock, strup, sip, siplock
2757 			 *	Standard network streams
2758 			 *	handling structures to manage
2759 			 *	instances of IDN driver.
2760 			 */
2761 	krwlock_t	struprwlock;
2762 	struct idnstr	*strup;			/* struprwlock */
2763 
2764 	struct idn	*sip;			/* siplock */
2765 	kmutex_t	sipwenlock;
2766 	kmutex_t	siplock;
2767 
2768 			/*
2769 			 * Area where IDN maintains its kstats.
2770 			 */
2771 	kstat_t		*ksp;
2772 			/*
2773 			 * Number of domains that local domain
2774 			 * has "open".
2775 			 */
2776 	int		ndomains;		/* grwlock */
2777 			/*
2778 			 * Number of domains that local domain
2779 			 * has registered as non-responsive.
2780 			 */
2781 	int		nawols;			/* grwlock */
2782 			/*
2783 			 * Number of network channels (interfaces)
2784 			 * which are currently active.
2785 			 */
2786 	int		nchannels;		/* grwlock */
2787 			/*
2788 			 * Bitmask representing channels
2789 			 * that are currently active.
2790 			 */
2791 	idn_chanset_t	chanset;		/* grwlock */
2792 			/*
2793 			 * Array of channel (network/data) servers
2794 			 * that have been created.  Not necessarily
2795 			 * all active.
2796 			 */
2797 	idn_chansvr_t	*chan_servers;		/* elmts = ch_mutex */
2798 			/*
2799 			 * Pointer to sigblock handler thread
2800 			 * which ultimately processes SSP
2801 			 * IDN requests.
2802 			 */
2803 	kthread_id_t	sigb_threadp;
2804 			/*
2805 			 * Pointer to area used by Master
2806 			 * to hold mailbox structures.
2807 			 * Actual memory is in SMR.
2808 			 */
2809 	idn_mboxtbl_t	*mboxarea;		/* grwlock */
2810 
2811 	struct {
2812 		/*
2813 		 * IDN_SYNC_LOCK - Provides serialization
2814 		 * mechanism when performing synchronous
2815 		 * operations across domains.
2816 		 */
2817 		kmutex_t	sz_mutex;
2818 		/*
2819 		 * Actual synchronization zones for
2820 		 * CONNECT/DISCONNECT phases.
2821 		 */
2822 		idn_synczone_t	sz_zone[IDN_SYNC_NUMZONE];
2823 	} sync;					/* sz_mutex */
2824 
2825 	struct {
2826 		/*
2827 		 * ds_trans_on
2828 		 *	Set of domains which are trying
2829 		 *	to establish a link w/local.
2830 		 * ds_ready_on
2831 		 *	Set of domains which local knows
2832 		 *	are ready for linking, but has
2833 		 *	not yet confirmed w/peers.
2834 		 * ds_connected
2835 		 *	Set of domains that local has
2836 		 *	confirmed as being ready.
2837 		 * ds_trans_off
2838 		 *	Set of domains which are trying
2839 		 *	to unlink from local.
2840 		 * ds_ready_off
2841 		 *	Set of domains which local knows
2842 		 *	are ready for unlink, but has
2843 		 *	not yet confirmed w/peers.
2844 		 * ds_relink
2845 		 *	Set of domains we're expecting
2846 		 *	to relink with subsequent to
2847 		 *	a RECONFIG (new master selection).
2848 		 * ds_hwlinked
2849 		 *	Set of domains for which local
2850 		 *	has programmed its hardware.
2851 		 * ds_flush
2852 		 *	Set of domains requiring that
2853 		 *	local flush its ecache prior
2854 		 *	to unlinking.
2855 		 * ds_awol
2856 		 *	Set of domains believed to be
2857 		 *	AWOL - haven't responded to
2858 		 *	any queries.
2859 		 * ds_hitlist
2860 		 *	Set of domains which local domain
2861 		 *	is unlinking from and wishes to ignore
2862 		 *	any extraneous indirect link requests
2863 		 *	from other domains, e.g. during a
2864 		 *	Reconfig.
2865 		 */
2866 		domainset_t	ds_trans_on;	/* sz_mutex */
2867 		domainset_t	ds_ready_on;	/* sz_mutex */
2868 
2869 		domainset_t	ds_connected;	/* sz_mutex */
2870 		domainset_t	ds_trans_off;	/* sz_mutex */
2871 
2872 		domainset_t	ds_ready_off;	/* sz_mutex */
2873 		domainset_t	ds_relink;	/* sz_mutex */
2874 
2875 		domainset_t	ds_hwlinked;	/* sz_mutex */
2876 		domainset_t	ds_flush;	/* sz_mutex */
2877 
2878 		domainset_t	ds_awol;	/* sz_mutex */
2879 		domainset_t	ds_hitlist;	/* sz_mutex */
2880 	} domset;
2881 			/*
2882 			 * Bitmask identifying all cpus in
2883 			 * the local IDN.
2884 			 */
2885 	cpuset_t	dc_cpuset;
2886 			/*
2887 			 * Bitmask identifying all boards in
2888 			 * the local IDN.
2889 			 */
2890 	boardset_t	dc_boardset;
2891 
2892 	struct dopers {
2893 		/*
2894 		 * Waiting area for IDN requests,
2895 		 * i.e. link & unlinks.  IDN requests
2896 		 * are performed asynchronously so
2897 		 * we need a place to wait until the
2898 		 * operation has completed.
2899 		 *
2900 		 * dop_domset
2901 		 *	Identifies which domains the
2902 		 *	current waiter is interested in.
2903 		 * dop_waitcount
2904 		 *	Number of waiters in the room.
2905 		 * dop_waitlist
2906 		 *	Actual waiting area.
2907 		 * dop_freelist
2908 		 *	Freelist (small cache) of
2909 		 *	structs for waiting area.
2910 		 */
2911 		kmutex_t	dop_mutex;
2912 		kcondvar_t	dop_cv;		/* dop_mutex */
2913 		domainset_t	dop_domset;	/* dop_mutex */
2914 		int		dop_waitcount;	/* dop_mutex */
2915 		dop_waitlist_t	*dop_waitlist;	/* dop_mutex */
2916 		dop_waitlist_t	*dop_freelist;	/* dop_mutex */
2917 							/* dop_mutex */
2918 		dop_waitlist_t	_dop_wcache[IDNOP_CACHE_SIZE];
2919 	} *dopers;
2920 
2921 	struct {
2922 		/*
2923 		 * Protocol Server:
2924 		 *
2925 		 * p_server
2926 		 *	Linked list of queues
2927 		 *	describing protocol
2928 		 *	servers in use.
2929 		 * p_jobpool
2930 		 *	Kmem cache of structs
2931 		 *	used to enqueue protocol
2932 		 *	jobs for protocol servers.
2933 		 * p_morgue
2934 		 *	Synchronization (check-in)
2935 		 *	area used when terminating
2936 		 *	protocol servers (threads).
2937 		 */
2938 		struct idn_protoqueue	*p_serverq;
2939 		kmem_cache_t		*p_jobpool;
2940 		ksema_t			p_morgue;
2941 	} protocol;
2942 
2943 	struct idn_retry_queue {
2944 		/*
2945 		 * rq_jobs
2946 		 *	Queue of Retry jobs
2947 		 *	that are outstanding.
2948 		 * rq_count
2949 		 *	Number of jobs on retry
2950 		 *	queue.
2951 		 * rq_cache
2952 		 *	Kmem cache for structs
2953 		 *	used to describe retry
2954 		 *	jobs.
2955 		 */
2956 		idn_retry_job_t	*rq_jobs;	/* rq_mutex */
2957 		int		rq_count;	/* rq_mutex */
2958 		kmutex_t	rq_mutex;	/* rq_mutex */
2959 
2960 		kcondvar_t	rq_cv;		/* rq_mutex */
2961 		kmem_cache_t	*rq_cache;
2962 	} retryqueue;
2963 
2964 	struct slabpool {
2965 		/*
2966 		 * Slabpool:
2967 		 *
2968 		 * ntotslabs
2969 		 *	Total number of slabs
2970 		 *	in SMR (free & in-use).
2971 		 * npools
2972 		 *	Number of pools available
2973 		 *	in list.  One smr_slabtbl
2974 		 *	exists for each pool.
2975 		 */
2976 		int		ntotslabs;
2977 		int		npools;
2978 		struct smr_slabtbl {
2979 			/*
2980 			 * sarray
2981 			 *	Array of slab structs
2982 			 *	representing slabs in SMR.
2983 			 * nfree
2984 			 *	Number of slabs actually
2985 			 *	available in sarray.
2986 			 * nslabs
2987 			 *	Number of slabs represented
2988 			 *	in sarray (free & in-use).
2989 			 */
2990 			smr_slab_t	*sarray;
2991 			int		nfree;
2992 			int		nslabs;
2993 		} *pool;
2994 		/*
2995 		 * Holds array of smr_slab_t structs kmem_alloc'd
2996 		 * for slabpool.
2997 		 */
2998 		smr_slab_t	*savep;
2999 	} *slabpool;
3000 
3001 	struct slabwaiter {
3002 		/*
3003 		 * Waiting area for threads
3004 		 * requesting slab allocations.
3005 		 * Used by Slaves for all requests,
3006 		 * but used by Master only for
3007 		 * redundant requests, i.e. multiple
3008 		 * requests on behalf of the same
3009 		 * domain.  One slabwaiter area
3010 		 * exist for each possible domain.
3011 		 *
3012 		 * w_nwaiters
3013 		 *	Number of threads waiting
3014 		 *	in waiting area.
3015 		 * w_done
3016 		 *	Flag to indicate that
3017 		 *	allocation request has
3018 		 *	completed.
3019 		 * w_serrno
3020 		 *	Non-zero indicates an
3021 		 *	errno value to represent
3022 		 *	error that occurred during
3023 		 *	attempt to allocate slab.
3024 		 * w_closed
3025 		 *	Indicates that waiting area is
3026 		 *	closed and won't allow any new
3027 		 *	waiters.  This occurs during
3028 		 *	the small window where we're
3029 		 *	trying to suspend a channel.
3030 		 * w_cv
3031 		 *	Condvar for waiting on.
3032 		 * w_sp
3033 		 *	Holds slab structure of
3034 		 *	successfully allocated slab.
3035 		 */
3036 		kmutex_t	w_mutex;
3037 		short		w_nwaiters;	/* w_mutex */
3038 		short		w_done;		/* w_mutex */
3039 		short		w_serrno;	/* w_mutex */
3040 		short		w_closed;	/* w_mutex */
3041 		kcondvar_t	w_cv;		/* w_mutex */
3042 		smr_slab_t	*w_sp;		/* w_mutex */
3043 	} *slabwaiter;
3044 			/*
3045 			 * Kmem cache used for allocating
3046 			 * timer structures for outstanding
3047 			 * IDN requests.
3048 			 */
3049 	kmem_cache_t	*timer_cache;
3050 			/*
3051 			 * Effectively constant used in
3052 			 * translating buffer frames in
3053 			 * mailbox message frames to
3054 			 * offsets within SMR.
3055 			 */
3056 	int		bframe_shift;
3057 } idn_global_t;
3058 
3059 typedef struct idn_retry_queue	idn_retry_queue_t;
3060 
3061 #define	IDN_GET_MASTERID()	(idn.masterid)
3062 #define	IDN_SET_MASTERID(mid) \
3063 	{ \
3064 		int	_mid = (mid); \
3065 		mutex_enter(&idn.idnsb_mutex); \
3066 		if (idn.idnsb) { \
3067 			idn.idnsb->id_pmaster_board = \
3068 					idn.idnsb->id_master_board; \
3069 			if (_mid == IDN_NIL_DOMID) \
3070 				idn.idnsb->id_master_board = (uchar_t)0xff; \
3071 			else \
3072 				idn.idnsb->id_master_board = \
3073 				(uchar_t)idn_domain[_mid].dvote.v.board; \
3074 		} \
3075 		mutex_exit(&idn.idnsb_mutex); \
3076 		IDN_HISTORY_LOG(IDNH_MASTERID, _mid, idn.masterid, 0); \
3077 		PR_STATE("%d: MASTERID %d -> %d\n", __LINE__, \
3078 			idn.masterid, _mid); \
3079 		idn.masterid = _mid; \
3080 	}
3081 #define	IDN_GET_NEW_MASTERID()	(idn.new_masterid)
3082 #define	IDN_SET_NEW_MASTERID(mid) \
3083 	{ \
3084 		PR_STATE("%d: NEW MASTERID %d -> %d\n", __LINE__, \
3085 			idn.new_masterid, (mid)); \
3086 		idn.new_masterid = (mid); \
3087 	}
3088 
3089 #define	IDN_GLOCK_EXCL()	(rw_enter(&idn.grwlock, RW_WRITER))
3090 #define	IDN_GLOCK_SHARED()	(rw_enter(&idn.grwlock, RW_READER))
3091 #define	IDN_GLOCK_TRY_SHARED()	(rw_tryenter(&idn.grwlock, RW_READER))
3092 #define	IDN_GLOCK_DOWNGRADE()	(rw_downgrade(&idn.grwlock))
3093 #define	IDN_GUNLOCK()		(rw_exit(&idn.grwlock))
3094 #define	IDN_GLOCK_IS_EXCL()	(RW_WRITE_HELD(&idn.grwlock))
3095 #define	IDN_GLOCK_IS_SHARED()	(RW_READ_HELD(&idn.grwlock))
3096 #define	IDN_GLOCK_IS_HELD()	(RW_LOCK_HELD(&idn.grwlock))
3097 
3098 #define	IDN_SYNC_LOCK()		(mutex_enter(&idn.sync.sz_mutex))
3099 #define	IDN_SYNC_TRYLOCK()	(mutex_tryenter(&idn.sync.sz_mutex))
3100 #define	IDN_SYNC_UNLOCK()	(mutex_exit(&idn.sync.sz_mutex))
3101 #define	IDN_SYNC_IS_LOCKED()	(MUTEX_HELD(&idn.sync.sz_mutex))
3102 
3103 /*
3104  * Macro to reset some globals necessary in preparing
3105  * for initialization of HW for IDN.
3106  */
3107 #define	IDN_PREP_HWINIT() \
3108 	{ \
3109 		ASSERT(IDN_GLOCK_IS_EXCL()); \
3110 		lock_clear(&idn.first_swlink); \
3111 		lock_clear(&idn.first_hwlink); \
3112 		idn.first_hwmasterid = (short)IDN_NIL_DOMID; \
3113 	}
3114 
3115 /*
3116  * Return values of idn_send_data.
3117  */
3118 #define	IDNXMIT_OKAY	0	/* xmit successful */
3119 #define	IDNXMIT_LOOP	1	/* loopback */
3120 #define	IDNXMIT_DROP	2	/* drop packet */
3121 #define	IDNXMIT_RETRY	3	/* retry packet (requeue and qenable) */
3122 #define	IDNXMIT_REQUEUE	4	/* requeue packet, but don't qenable */
3123 
3124 /*
3125  * ---------------------------------------------------------------------
3126  * ss_rwlock must be acquired _before_ any idn_domain locks are
3127  * acquired if both structs need to be accessed.
3128  * idn.struprwlock is acquired when traversing IDN's strup list
3129  * and when adding or deleting entries.
3130  *
3131  * ss_nextp	Linked list of streams.
3132  * ss_rq	Respective read queue.
3133  * ss_sip	Attached device.
3134  * ss_state	Current DL state.
3135  * ss_sap	Bound SAP.
3136  * ss_flags	Misc. flags.
3137  * ss_mccount	# enabled multicast addrs.
3138  * ss_mctab	Table of multicast addrs.
3139  * ss_minor	Minor device number.
3140  * ss_rwlock	Protects ss_linkup fields and DLPI state machine.
3141  * ss_linkup	Boolean flag indicating whether particular (domain) link
3142  *		is up.
3143  * ---------------------------------------------------------------------
3144  */
3145 struct idnstr {				/* gets shoved into q_ptr */
3146 	struct idnstr	*ss_nextp;
3147 	queue_t		*ss_rq;
3148 	struct idn	*ss_sip;
3149 	t_uscalar_t	ss_state;
3150 	t_uscalar_t	ss_sap;
3151 	uint_t		ss_flags;
3152 	uint_t		ss_mccount;
3153 	struct ether_addr	*ss_mctab;
3154 	minor_t		ss_minor;
3155 	krwlock_t	ss_rwlock;
3156 };
3157 
3158 /*
3159  * idnstr.ss_flags - Per-stream flags
3160  */
3161 #define	IDNSFAST	0x01		/* "M_DATA fastpath" mode */
3162 #define	IDNSRAW		0x02		/* M_DATA plain raw mode */
3163 #define	IDNSALLPHYS	0x04		/* "promiscuous mode" */
3164 #define	IDNSALLMULTI	0x08		/* enable all multicast addresses */
3165 #define	IDNSALLSAP	0x10		/* enable all ether type values */
3166 
3167 /*
3168  * Maximum number of multicast address per stream.
3169  */
3170 #define	IDNMAXMC	64
3171 #define	IDNMCALLOC	(IDNMAXMC * sizeof (struct ether_addr))
3172 
3173 /*
3174  * Full DLSAP address length (in struct dladdr format).
3175  */
3176 #define	IDNADDRL	(ETHERADDRL + sizeof (ushort_t))
3177 
3178 struct idndladdr {
3179 	struct ether_addr	dl_phys;
3180 	ushort_t		dl_sap;
3181 };
3182 
3183 #define	IDNHEADROOM		64
3184 #define	IDNROUNDUP(a, n)	(((a) + ((n) - 1)) & ~((n) - 1))
3185 
3186 /*
3187  * Respective interpretation of bytes in 6 byte ethernet address.
3188  */
3189 #define	IDNETHER_ZERO		0
3190 #define	IDNETHER_COOKIE1	1
3191 #define	  IDNETHER_COOKIE1_VAL		0xe5
3192 #define	IDNETHER_COOKIE2	2
3193 #define	  IDNETHER_COOKIE2_VAL		0x82
3194 #define	IDNETHER_NETID		3
3195 #define	IDNETHER_CHANNEL	4
3196 #define	IDNETHER_RESERVED	5
3197 #define	  IDNETHER_RESERVED_VAL		0x64
3198 
3199 /*
3200  * IDN driver supports multliple instances, however they
3201  * still all refer to the same "physical" device.  Multiple
3202  * instances are supported primarily to allow increased
3203  * STREAMs bandwidth since each instance has it's own IP queue.
3204  * This structure is primarily defined to be consistent with
3205  * other network drivers and also to hold the kernel stats.
3206  */
3207 struct idn_kstat {
3208 	ulong_t		si_ipackets;	/* # packets received */
3209 	ulong_t		si_ierrors;	/* # total input errors */
3210 	ulong_t		si_opackets;	/* # packets sent */
3211 	ulong_t		si_oerrors;	/* # total output errors */
3212 
3213 	ulong_t		si_txcoll;	/* # xmit collisions */
3214 	ulong_t		si_rxcoll;	/* # recv collisions */
3215 	ulong_t		si_crc;		/* # recv crc errors */
3216 	ulong_t		si_buff;	/* # recv pkt sz > buf sz */
3217 
3218 	ulong_t		si_nolink;	/* # loss of connection */
3219 	ulong_t		si_linkdown;	/* # link is down */
3220 	ulong_t		si_inits;	/* # driver inits */
3221 	ulong_t		si_nocanput;	/* # canput() failures */
3222 
3223 	ulong_t		si_allocbfail;	/* # allocb() failures */
3224 	ulong_t		si_notbufs;	/* # out of xmit buffers */
3225 	ulong_t		si_reclaim;	/* # reclaim failures */
3226 	ulong_t		si_smraddr;	/* # bad SMR addrs */
3227 
3228 	ulong_t		si_txmax;	/* # xmit over limit */
3229 	ulong_t		si_txfull;	/* # xmit mbox full */
3230 	ulong_t		si_xdcall;	/* # xdcalls sent */
3231 	ulong_t		si_sigsvr;	/* # data server wakeups */
3232 
3233 	ulong_t		si_mboxcrc;	/* # send mbox crc errors */
3234 	/*
3235 	 * MIB II kstat variables
3236 	 */
3237 	ulong_t		si_rcvbytes;	/* # bytes received */
3238 	ulong_t		si_xmtbytes;	/* # bytes transmitted */
3239 	ulong_t		si_multircv;	/* # multicast packets received */
3240 
3241 	ulong_t		si_multixmt;	/* # multicast packets for xmit */
3242 	ulong_t		si_brdcstrcv;	/* # broadcast packets received */
3243 	ulong_t		si_brdcstxmt;	/* # broadcast packets for xmit */
3244 	ulong_t		si_norcvbuf;	/* # rcv packets discarded */
3245 
3246 	ulong_t		si_noxmtbuf;	/* # xmit packets discarded */
3247 	/*
3248 	 * PSARC 1997/198 : 64 bit kstats
3249 	 */
3250 	uint64_t	si_ipackets64;	/* # packets received */
3251 	uint64_t	si_opackets64;	/* # packets transmitted */
3252 	uint64_t	si_rbytes64;	/* # bytes received */
3253 	uint64_t	si_obytes64;	/* # bytes transmitted */
3254 	/*
3255 	 * PSARC 1997/247 : RFC 1643	dot3Stats...
3256 	 */
3257 	ulong_t	si_fcs_errors;		/* FCSErrors */
3258 	ulong_t	si_macxmt_errors;	/* InternalMacTransmitErrors */
3259 	ulong_t	si_toolong_errors;	/* FrameTooLongs */
3260 	ulong_t	si_macrcv_errors;	/* InternalMacReceiveErrors */
3261 };
3262 
3263 /*
3264  * Per logical interface private data structure.
3265  */
3266 struct idn {
3267 	struct idn		*si_nextp;	/* linked instances */
3268 	dev_info_t		*si_dip;	/* assoc. dev_info */
3269 	struct ether_addr	si_ouraddr;	/* enet address */
3270 
3271 	uint_t			si_flags;	/* misc. flags */
3272 	uint_t			si_wantw;	/* xmit: out of res. */
3273 	queue_t			*si_ip4q;	/* ip (v4) read queue */
3274 	queue_t			*si_ip6q;	/* ip (v6) read queue */
3275 
3276 	kstat_t			*si_ksp;	/* kstat pointer */
3277 	struct idn_kstat	si_kstat;	/* per-inst kstat */
3278 };
3279 
3280 struct idn_gkstat {
3281 	ulong_t		gk_reconfigs;		/* # reconfigs */
3282 	ulong_t		gk_reconfig_last;	/* timestamep */
3283 	ulong_t		gk_reaps;		/* # of reap request */
3284 	ulong_t		gk_reap_last;		/* timestamep */
3285 
3286 	ulong_t		gk_links;		/* # of IDN links */
3287 	ulong_t		gk_link_last;		/* timestamep */
3288 	ulong_t		gk_unlinks;		/* # of IDN unlinks */
3289 	ulong_t		gk_unlink_last;		/* timestamep */
3290 
3291 	ulong_t		gk_buffail;		/* # bad bufalloc */
3292 	ulong_t		gk_buffail_last;	/* timestamp */
3293 	ulong_t		gk_slabfail;		/* # bad slaballoc */
3294 	ulong_t		gk_slabfail_last;	/* timestamp */
3295 
3296 	ulong_t		gk_reap_count;		/* # of slabs reaped */
3297 	ulong_t		gk_dropped_intrs;	/* dropped intrs */
3298 };
3299 
3300 extern struct idn_gkstat	sg_kstat;
3301 
3302 #ifdef IDN_NO_KSTAT
3303 
3304 #define	IDN_KSTAT_INC(s, i)
3305 #define	IDN_KSTAT_ADD(s, i, n)
3306 #define	IDN_GKSTAT_INC(i)
3307 #define	IDN_GKSTAT_ADD(vvv, iii)
3308 #define	IDN_GKSTAT_GLOBAL_EVENT(vvv, nnn)
3309 
3310 #else /* IDN_NO_KSTAT */
3311 
3312 #define	IDN_KSTAT_INC(sss, vvv) \
3313 		((((struct idn *)(sss))->si_kstat.vvv)++)
3314 #define	IDN_KSTAT_ADD(sss, vvv, nnn) \
3315 		((((struct idn *)(sss))->si_kstat.vvv) += (nnn))
3316 #define	IDN_GKSTAT_INC(vvv)		((sg_kstat.vvv)++)
3317 #define	IDN_GKSTAT_ADD(vvv, iii)	((sg_kstat.vvv) += (iii))
3318 #define	IDN_GKSTAT_GLOBAL_EVENT(vvv, ttt) \
3319 		((sg_kstat.vvv)++, ((sg_kstat.ttt) = lbolt))
3320 
3321 #endif /* IDN_NO_KSTAT */
3322 
3323 /*
3324  * idn.si_flags
3325  */
3326 #define	IDNRUNNING		0x01		/* IDNnet is UP */
3327 #define	IDNPROMISC		0x02		/* promiscuous mode enabled */
3328 #define	IDNSUSPENDED		0x04		/* suspended (DR) */
3329 
3330 typedef struct kstat_named	kstate_named_t;
3331 
3332 struct idn_kstat_named {
3333 	kstat_named_t	sk_ipackets;	/* # packets received */
3334 	kstat_named_t	sk_ierrors;	/* # total input errors */
3335 	kstat_named_t	sk_opackets;	/* # packets sent */
3336 	kstat_named_t	sk_oerrors;	/* # total output errors */
3337 
3338 	kstat_named_t	sk_txcoll;	/* # xmit collisions */
3339 	kstat_named_t	sk_rxcoll;	/* # recv collisions */
3340 	kstat_named_t	sk_crc;		/* # recv crc errors */
3341 	kstat_named_t	sk_buff;	/* # recv pkt sz > buf sz */
3342 
3343 	kstat_named_t	sk_nolink;	/* # loss of connection */
3344 	kstat_named_t	sk_linkdown;	/* # link is down */
3345 	kstat_named_t	sk_inits;	/* # driver inits */
3346 	kstat_named_t	sk_nocanput;	/* # canput() failures */
3347 
3348 	kstat_named_t	sk_allocbfail;	/* # allocb() failures */
3349 	kstat_named_t	sk_notbufs;	/* # out of xmit buffers */
3350 	kstat_named_t	sk_reclaim;	/* # reclaim failures */
3351 	kstat_named_t	sk_smraddr;	/* # bad SMR addrs */
3352 
3353 	kstat_named_t	sk_txmax;	/* # xmit over limit */
3354 	kstat_named_t	sk_txfull;	/* # xmit mbox full */
3355 	kstat_named_t	sk_xdcall;	/* # xdcalls sent */
3356 	kstat_named_t	sk_sigsvr;	/* # data server wakeups */
3357 
3358 	kstat_named_t	sk_mboxcrc;	/* # send mbox crc errors */
3359 	/*
3360 	 * MIB II kstat variables
3361 	 */
3362 	kstat_named_t	sk_rcvbytes;	/* # bytes received */
3363 	kstat_named_t	sk_xmtbytes;	/* # bytes transmitted */
3364 	kstat_named_t	sk_multircv;	/* # multicast packets received */
3365 
3366 	kstat_named_t	sk_multixmt;	/* # multicast packets for xmit */
3367 	kstat_named_t	sk_brdcstrcv;	/* # broadcast packets received */
3368 	kstat_named_t	sk_brdcstxmt;	/* # broadcast packets for xmit */
3369 	kstat_named_t	sk_norcvbuf;	/* # rcv packets discarded */
3370 
3371 	kstat_named_t	sk_noxmtbuf;	/* # xmit packets discarded */
3372 	/*
3373 	 * PSARC 1997/198 : 64bit kstats
3374 	 */
3375 	kstat_named_t	sk_ipackets64;	/* # packets received */
3376 	kstat_named_t	sk_opackets64;	/* # packets transmitted */
3377 	kstat_named_t	sk_rbytes64;	/* # bytes received */
3378 	kstat_named_t	sk_obytes64;	/* # bytes transmitted */
3379 	/*
3380 	 * PSARC 1997/247 : RFC 1643	dot3Stats...
3381 	 */
3382 	kstat_named_t	sk_fcs_errors;		/* FCSErr */
3383 	kstat_named_t	sk_macxmt_errors;	/* InternalMacXmtErr */
3384 	kstat_named_t	sk_toolong_errors;	/* FrameTooLongs */
3385 	kstat_named_t	sk_macrcv_errors;	/* InternalMacRcvErr */
3386 };
3387 
3388 /*
3389  * Stats for global events of interest (non-counters).
3390  */
3391 struct idn_gkstat_named {
3392 	kstat_named_t	sk_curtime;		/* current time */
3393 	kstat_named_t	sk_reconfigs;		/* # master recfgs */
3394 	kstat_named_t	sk_reconfig_last;	/* timestamp */
3395 	kstat_named_t	sk_reaps;		/* # of reap req */
3396 	kstat_named_t	sk_reap_last;		/* timestamp */
3397 	kstat_named_t	sk_links;		/* # of links */
3398 	kstat_named_t	sk_link_last;		/* timestamp */
3399 	kstat_named_t	sk_unlinks;		/* # of unlinks */
3400 	kstat_named_t	sk_unlink_last;		/* timestamp */
3401 	kstat_named_t	sk_buffail;		/* # bad buf alloc */
3402 	kstat_named_t	sk_buffail_last;	/* timestamp */
3403 	kstat_named_t	sk_slabfail;		/* # bad buf alloc */
3404 	kstat_named_t	sk_slabfail_last;	/* timestamp */
3405 	kstat_named_t	sk_reap_count;		/* # slabs reaped */
3406 	kstat_named_t	sk_dropped_intrs;	/* intrs dropped */
3407 };
3408 
3409 /*
3410  * ---------------------------------------------------------------------
3411  */
3412 #ifdef DEBUG
3413 #define	IDNXDC(d, mt, a1, a2, a3, a4) \
3414 	(debug_idnxdc("idnxdc", (int)(d), (mt), \
3415 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3416 #else /* DEBUG */
3417 #define	IDNXDC(d, mt, a1, a2, a3, a4) \
3418 	(idnxdc((int)(d), (mt), \
3419 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3420 #endif /* DEBUG */
3421 #define	IDNXDC_BROADCAST(ds, mt, a1, a2, a3, a4) \
3422 	(idnxdc_broadcast((domainset_t)(ds), (mt), \
3423 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3424 
3425 /*
3426  * ---------------------------------------------------------------------
3427  */
3428 #define	SET_XARGS(x, a0, a1, a2, a3) \
3429 	((x)[0] = (uint_t)(a0), (x)[1] = (uint_t)(a1), \
3430 	(x)[2] = (uint_t)(a2), (x)[3] = (uint_t)(a3))
3431 
3432 #define	GET_XARGS(x, a0, a1, a2, a3) \
3433 	(((a0) ? *(uint_t *)(a0) = (x)[0] : 1), \
3434 	((a1) ? *(uint_t *)(a1) = (x)[1] : 1), \
3435 	((a2) ? *(uint_t *)(a2) = (x)[2] : 1), \
3436 	((a3) ? *(uint_t *)(a3) = (x)[3] : 1))
3437 
3438 #define	CLR_XARGS(x) \
3439 		((x)[0] = (x)[1] = (x)[2] = (x)[3] = 0)
3440 
3441 #define	GET_XARGS_NEGO_TICKET(x)	((uint_t)(x)[0])
3442 #define	GET_XARGS_NEGO_DSET(x, d) \
3443 		((d)[0] = (x)[1], (d)[1] = (x)[2], (d)[2] = (x)[3])
3444 #define	SET_XARGS_NEGO_TICKET(x, t)	((x)[0] = (uint_t)(t))
3445 #define	SET_XARGS_NEGO_DSET(x, d) \
3446 		((x)[1] = (uint_t)(d)[0], \
3447 		(x)[2] = (uint_t)(d)[1], \
3448 		(x)[3] = (uint_t)(d)[2])
3449 
3450 #define	GET_XARGS_CON_TYPE(x)		((idn_con_t)(x)[0])
3451 #define	GET_XARGS_CON_DOMSET(x)		((domainset_t)(x)[1])
3452 #define	SET_XARGS_CON_TYPE(x, t)	((x)[0] = (uint_t)(t))
3453 #define	SET_XARGS_CON_DOMSET(x, s)	((x)[1] = (uint_t)(s))
3454 
3455 #define	GET_XARGS_FIN_TYPE(x)		GET_FIN_TYPE((x)[0])
3456 #define	GET_XARGS_FIN_ARG(x)		GET_FIN_ARG((x)[0])
3457 #define	GET_XARGS_FIN_DOMSET(x)		((domainset_t)(x)[1])
3458 #define	GET_XARGS_FIN_OPT(x)		((idn_finopt_t)(x)[2])
3459 #define	GET_XARGS_FIN_MASTER(x)		((uint_t)(x)[3])
3460 #define	SET_XARGS_FIN_TYPE(x, t)	SET_FIN_TYPE((x)[0], (t))
3461 #define	SET_XARGS_FIN_ARG(x, a)		SET_FIN_ARG((x)[0], (a))
3462 #define	SET_XARGS_FIN_DOMSET(x, s)	((x)[1] = (uint_t)(s))
3463 #define	SET_XARGS_FIN_OPT(x, o)		((x)[2] = (uint_t)(o))
3464 #define	SET_XARGS_FIN_MASTER(x, m)	((x)[3] = (uint_t)(m))
3465 
3466 #define	GET_XARGS_NACK_TYPE(x)		((idn_nack_t)(x)[0])
3467 #define	GET_XARGS_NACK_ARG1(x)		((x)[1])
3468 #define	GET_XARGS_NACK_ARG2(x)		((x)[2])
3469 #define	SET_XARGS_NACK_TYPE(x, t)	((x)[0] = (uint_t)(t))
3470 #define	SET_XARGS_NACK_ARG1(x, a1)	((x)[1] = (uint_t)(a1))
3471 #define	SET_XARGS_NACK_ARG2(x, a2)	((x)[2] = (uint_t)(a2))
3472 
3473 #define	GET_XARGS_CFG_PHASE(x)		((int)(x)[0])
3474 #define	SET_XARGS_CFG_PHASE(x, p)	((x)[0] = (uint_t)(p))
3475 
3476 /*
3477  * ---------------------------------------------------------------------
3478  */
3479 /*
3480  * Device instance to SIP (IDN instance pointer).
3481  */
3482 #ifdef DEBUG
3483 #define	IDN_INST2SIP(i) \
3484 		(ASSERT(((i) >= 0) && ((i) < (IDN_MAXMAX_NETS << 1))), \
3485 			idn_i2s_table[i])
3486 #else /* DEBUG */
3487 #define	IDN_INST2SIP(i)		(idn_i2s_table[i])
3488 #endif /* DEBUG */
3489 
3490 #define	IDN_SET_INST2SIP(i, s) \
3491 	{ \
3492 		ASSERT(((i) >= 0) && ((i) < (IDN_MAXMAX_NETS << 1))); \
3493 		idn_i2s_table[i] = (s); \
3494 	}
3495 
3496 #define	IDN_NETID2DOMID(n)	(VALID_DOMAINID((int)(n)) ? \
3497 					((int)(n)) : IDN_NIL_DOMID)
3498 #define	IDN_DOMID2NETID(d)	((ushort_t)(d))
3499 
3500 #ifdef DEBUG
3501 #define	IDNDL_ETHER2DOMAIN(eap) \
3502 		(_idndl_ether2domain(eap))
3503 #define	IDNDL_ETHER2SIP(eap) \
3504 		(_idndl_ether2sip(eap))
3505 #else
3506 /*
3507  * The following values can be returned from IDNDL_ETHER2DOMAIN:
3508  *	IDN_NIL_DOMID
3509  *		Ether address is broadcast (0xff) or domain doesn't exist.
3510  *	domid	Domain id with drwlock(reader) held.
3511  */
3512 #define	IDNDL_ETHER2DOMAIN(eap) \
3513 	(IDN_NETID2DOMID((eap)->ether_addr_octet[IDNETHER_NETID]))
3514 #define	IDNDL_ETHER2SIP(eap) \
3515 		(((eap)->ether_addr_octet[IDNETHER_CHANNEL] == 0xff) ? NULL : \
3516 		IDN_INST2SIP((int)(eap)->ether_addr_octet[IDNETHER_CHANNEL]))
3517 #endif /* DEBUG */
3518 
3519 #define	UPPER32_CPUMASK(s)	_upper32cpumask(s)
3520 #define	LOWER32_CPUMASK(s)	_lower32cpumask(s)
3521 #define	MAKE64_CPUMASK(s, u, l)	_make64cpumask(&(s), (u), (l))
3522 
3523 #ifdef DEBUG
3524 extern caddr_t	_idn_getstruct(char *structname, int size);
3525 extern void	_idn_freestruct(caddr_t ptr, char *structname, int size);
3526 
3527 #define	GETSTRUCT(structure, num) \
3528 	((structure *)_idn_getstruct("structure", sizeof (structure)*(num)))
3529 #define	FREESTRUCT(ptr, structure, num) \
3530 	(_idn_freestruct((caddr_t)ptr, "structure", sizeof (structure)*(num)))
3531 #else /* DEBUG */
3532 #define	GETSTRUCT(structure, num) \
3533 	((structure *)kmem_zalloc((uint_t)(sizeof (structure) * (num)), \
3534 				    KM_SLEEP))
3535 #define	FREESTRUCT(ptr, structure, num) \
3536 	(kmem_free((caddr_t)(ptr), sizeof (structure) * (num)))
3537 #endif /* DEBUG */
3538 
3539 extern int		idn_debug;
3540 extern idn_global_t	idn;
3541 extern idn_domain_t	idn_domain[];
3542 extern struct idn	*idn_i2s_table[];
3543 extern int		idn_history;
3544 extern struct idn_history	idnhlog;
3545 
3546 extern int		idn_smr_size;
3547 extern int		idn_nwr_size;
3548 extern int		idn_protocol_nservers;
3549 extern int		idn_awolmsg_interval;
3550 extern int		idn_smr_bufsize;
3551 extern int		idn_slab_bufcount;
3552 extern int		idn_slab_prealloc;
3553 extern int		idn_slab_mintotal;
3554 extern int		idn_window_max;
3555 extern int		idn_window_incr;
3556 extern int		idn_reclaim_min;
3557 extern int		idn_reclaim_max;
3558 extern int		idn_mbox_per_net;
3559 extern int		idn_max_nets;
3560 
3561 extern int		idn_netsvr_spin_count;
3562 extern int		idn_netsvr_wait_min;
3563 extern int		idn_netsvr_wait_max;
3564 extern int		idn_netsvr_wait_shift;
3565 
3566 extern int		idn_checksum;
3567 
3568 extern int		idn_msgwait_nego;
3569 extern int		idn_msgwait_cfg;
3570 extern int		idn_msgwait_con;
3571 extern int		idn_msgwait_fin;
3572 extern int		idn_msgwait_cmd;
3573 extern int		idn_msgwait_data;
3574 
3575 extern int		idn_retryfreq_nego;
3576 extern int		idn_retryfreq_con;
3577 extern int		idn_retryfreq_fin;
3578 
3579 extern int		idn_window_emax;	/* calculated */
3580 extern int		idn_slab_maxperdomain;	/* calculated */
3581 
3582 /*
3583  * ---------------------------------------------------------------------
3584  * io/idn.c
3585  * ---------------------------------------------------------------------
3586  */
3587 extern int	board_to_ready_cpu(int board, cpuset_t cpuset);
3588 extern int	idn_open_domain(int domid, int cpuid, uint_t ticket);
3589 extern void 	idn_close_domain(int domid);
3590 extern void	inum2str(uint_t inum, char str[]);
3591 extern idn_timer_t	*idn_timer_alloc();
3592 extern void	idn_timer_free(idn_timer_t *tp);
3593 extern void	idn_timerq_init(idn_timerq_t *tq);
3594 extern void	idn_timerq_deinit(idn_timerq_t *tq);
3595 extern void	idn_timerq_free(idn_timerq_t *tq);
3596 extern ushort_t	idn_timer_start(idn_timerq_t *tq, idn_timer_t *tp,
3597 				clock_t tval);
3598 extern int	idn_timer_stopall(idn_timer_t *tp);
3599 extern void	idn_timer_dequeue(idn_timerq_t *tq, idn_timer_t *tp);
3600 extern void	idn_timer_stop(idn_timerq_t *tq, int subtype, ushort_t tcookie);
3601 extern idn_timer_t	*idn_timer_get(idn_timerq_t *tq, int subtype,
3602 				ushort_t tcookie);
3603 extern void	idn_domain_resetentry(idn_domain_t *dp);
3604 extern void	idn_strlinks_enable(uint_t netaddr, int domid);
3605 extern void	idn_strlinks_disable(uint_t domset, uint_t netaddr,
3606 				int disconnect);
3607 extern void	idn_dopcache_init();
3608 extern void	idn_dopcache_deinit();
3609 extern void 	*idn_init_op(idn_opflag_t opflag, boardset_t boardset,
3610 				idnsb_error_t *sep);
3611 extern void	idn_add_op(idn_opflag_t opflag, domainset_t domset);
3612 extern void	idn_update_op(idn_opflag_t opflag, domainset_t domset,
3613 				idnsb_error_t *sep);
3614 extern void	idn_deinit_op(void *cookie);
3615 extern int	idn_wait_op(void *cookie, boardset_t *domsetp,
3616 				int wait_timeout);
3617 extern int	idn_wakeup_op(boardset_t boardset, uint_t domset,
3618 				idn_opflag_t opflag, int error);
3619 extern void	idn_error_op(uint_t domset, boardset_t boardset, int error);
3620 extern void	cpuset2str(cpuset_t cset, char buffer[]);
3621 extern void	domainset2str(domainset_t dset, char buffer[]);
3622 extern void	boardset2str(boardset_t bset, char buffer[]);
3623 extern void	mask2str(uint_t mask, char buffer[], int maxnum);
3624 extern int	idnxdc(int domid, idn_msgtype_t *mtp,
3625 				uint_t arg1, uint_t arg2,
3626 				uint_t arg3, uint_t arg4);
3627 extern void	idnxdc_broadcast(domainset_t domset, idn_msgtype_t *mtp,
3628 				uint_t arg1, uint_t arg2,
3629 				uint_t arg3, uint_t arg4);
3630 extern void	idn_awol_event_set(boardset_t boardset);
3631 extern void	idn_awol_event_clear(boardset_t boardset);
3632 #ifdef DEBUG
3633 extern int	debug_idnxdc(char *f, int domid, idn_msgtype_t *mtp,
3634 				uint_t arg1, uint_t arg2,
3635 				uint_t arg3, uint_t arg4);
3636 #endif /* DEBUG */
3637 extern boardset_t	cpuset2boardset(cpuset_t portset);
3638 extern uint_t	_upper32cpumask(cpuset_t cset);
3639 extern uint_t	_lower32cpumask(cpuset_t cset);
3640 extern void	_make64cpumask(cpuset_t *csetp, uint_t upper, uint_t lower);
3641 
3642 /*
3643  * ---------------------------------------------------------------------
3644  * io/idn_proto.c
3645  * ---------------------------------------------------------------------
3646  */
3647 extern void	idn_assign_cookie(int domid);
3648 extern int	idn_rput_data(queue_t *q, mblk_t *mp, int isput);
3649 extern int	idn_wput_data(queue_t *q, mblk_t *mp, int isput);
3650 extern int	idn_send_data(int dst_domid, idn_netaddr_t dst_netaddr,
3651 				queue_t *wq, mblk_t *mp);
3652 extern void 	idn_recv_signal(mblk_t *mp);
3653 extern int 	idn_link(int domid, int cpuid, int pri, int waittime,
3654 				idnsb_error_t *sep);
3655 extern int 	idn_unlink(int domid, boardset_t idnset, idn_fin_t fintype,
3656 				idn_finopt_t finopt, int waittime,
3657 				idnsb_error_t *sep);
3658 extern int	idnh_recv_dataack(int domid, int src_proc,
3659 				uint_t acknack, idn_xdcargs_t xargs);
3660 extern int 	idnh_recv_other(int sourceid, int src_proc, int dst_proc,
3661 				uint_t inum, uint_t acknack,
3662 				idn_xdcargs_t xargs);
3663 extern void 	idn_send_cmd(int domid, idn_cmd_t cmdtype,
3664 				uint_t arg1, uint_t arg2, uint_t arg3);
3665 extern void	idn_send_cmdresp(int domid, idn_msgtype_t *mtp,
3666 				idn_cmd_t cmdtype, uint_t arg1,
3667 				uint_t arg2, uint_t cerrno);
3668 extern void 	idn_broadcast_cmd(idn_cmd_t cmdtype,
3669 				uint_t arg1, uint_t arg2, uint_t arg3);
3670 extern int	idn_reclaim_mboxdata(int domid, int channel, int nbufs);
3671 extern void	idn_clear_awol(int domid);
3672 extern int	idn_protocol_init(int nservers);
3673 extern void	idn_protocol_deinit();
3674 extern void	idn_timer_expired(void *arg);
3675 extern int	idn_open_channel(int channel);
3676 extern void	idn_close_channel(int channel, idn_chanop_t chanop);
3677 extern idn_mainmbox_t	*idn_mainmbox_init(int domid, int mbx);
3678 extern void	idn_mainmbox_deinit(int domid, idn_mainmbox_t *mmp);
3679 extern void	idn_signal_data_server(int domid, ushort_t channel);
3680 extern int	idn_chanservers_init();
3681 extern void	idn_chanservers_deinit();
3682 extern void	idn_chanserver_bind(int net, int cpuid);
3683 extern int	idn_retry_terminate(uint_t token);
3684 extern idn_protojob_t	*idn_protojob_alloc(int kmflag);
3685 extern void	idn_protojob_submit(int cookie, idn_protojob_t *jp);
3686 extern int	idn_domain_is_registered(int domid, int channel,
3687 				idn_chanset_t *chansetp);
3688 extern void	idn_xmit_monitor_kickoff(int chan_wanted);
3689 extern void	idn_sync_exit(int domid, idn_synccmd_t cmd);
3690 /*
3691  * ---------------------------------------------------------------------
3692  * io/idn_xf.c
3693  * ---------------------------------------------------------------------
3694  */
3695 extern void	idnxf_flushall_ecache();
3696 extern int	idnxf_shmem_add(int is_master, boardset_t boardset,
3697 				pfn_t pfnbase, pfn_t pfnlimit,
3698 				uint_t *mcadr);
3699 extern int	idnxf_shmem_sub(int is_master, boardset_t boardset);
3700 extern int	idn_cpu_per_board(void *p2o, cpuset_t cset,
3701 				struct hwconfig *hwp);
3702 /*
3703  * ---------------------------------------------------------------------
3704  * io/idn_dlpi.c
3705  * ---------------------------------------------------------------------
3706  */
3707 extern int	idndl_init(struct idn *sip);
3708 extern void	idndl_uninit(struct idn *sip);
3709 extern void	idndl_statinit(struct idn *sip);
3710 extern void	idndl_dodetach(struct idnstr *);
3711 extern int	idnioc_dlpi(queue_t *wq, mblk_t *mp, int *argsize);
3712 extern void	idndl_localetheraddr(struct idn *sip, struct ether_addr *eap);
3713 extern int	idndl_domain_etheraddr(int domid, int instance,
3714 				struct ether_addr *eap);
3715 extern void	idndl_dlpi_init();
3716 extern int	idndl_start(queue_t *wq, mblk_t *mp, struct idn *sip);
3717 extern void	idndl_read(struct idn *sip, mblk_t *mp);
3718 extern void	idndl_proto(queue_t *wq, mblk_t *mp);
3719 extern void	idndl_sendup(struct idn *, mblk_t *, struct idnstr *(*)());
3720 extern struct idnstr *idndl_accept(struct idnstr *, struct idn *, int,
3721 				struct ether_addr *);
3722 extern struct idnstr *idndl_paccept(struct idnstr *, struct idn *, int,
3723 				struct ether_addr *);
3724 extern void	idndl_wenable(struct idn *);
3725 /*
3726  * ---------------------------------------------------------------------
3727  * io/idn_smr.c
3728  * ---------------------------------------------------------------------
3729  */
3730 extern void	smr_slabwaiter_open(domainset_t domset);
3731 extern void	smr_slabwaiter_close(domainset_t domset);
3732 /*
3733  * ---------------------------------------------------------------------
3734  */
3735 extern void	idn_smrsize_init();
3736 extern void	idn_init_autolink();
3737 extern void	idn_deinit_autolink();
3738 
3739 extern void	idn_dmv_handler(void *arg);
3740 extern void	idnxf_init_mondo(uint64_t dmv_word0,
3741 				uint64_t dmv_word1, uint64_t dmv_word2);
3742 extern int	idnxf_send_mondo(int upaid);
3743 
3744 extern clock_t	idn_msg_waittime[];
3745 extern clock_t	idn_msg_retrytime[];
3746 
3747 #endif /* !_ASM */
3748 #endif /* _KERNEL */
3749 
3750 #ifndef _ASM
3751 /*
3752  * ---------------------------------------------------------------------
3753  */
3754 #define	IDN_NIL_DOMID		-1
3755 #define	IDN_NIL_DCPU		-1
3756 
3757 /*
3758  * ---------------------------------------------------------------------
3759  */
3760 
3761 /*
3762  * IOCTL Interface
3763  *
3764  * Commands must stay in the range (1 - 4096) since only 12 bits
3765  * are allotted.
3766  */
3767 #define	_IDN(n)			(('I' << 20) | ('D' << 12) | (n))
3768 #define	IDNIOC_LINK		_IDN(1)		/* domain_link */
3769 #define	IDNIOC_UNLINK		_IDN(2)		/* domain_unlink */
3770 #define	IDNIOC_unused0		_IDN(3)
3771 #define	IDNIOC_unused1		_IDN(4)
3772 #define	IDNIOC_unused2		_IDN(5)
3773 #define	IDNIOC_unused3		_IDN(6)
3774 #define	IDNIOC_unused4		_IDN(7)
3775 #define	IDNIOC_DLPI_ON		_IDN(8)		/* Turn ON DLPI on str */
3776 #define	IDNIOC_DLPI_OFF		_IDN(9)		/* Turn OFF DLPI on str */
3777 #define	IDNIOC_PING		_IDN(10)	/* For latency testing */
3778 #define	IDNIOC_PING_INIT	_IDN(11)
3779 #define	IDNIOC_PING_DEINIT	_IDN(12)
3780 #define	IDNIOC_MEM_RW		_IDN(13)	/* Random R/W of SMR */
3781 
3782 
3783 #define	VALID_NDOP(op)		(((op) == ND_SET) || ((op) == ND_GET))
3784 
3785 #define	VALID_DLPIOP(op)	(((op) == DLIOCRAW) || \
3786 				((op) == DL_IOC_HDR_INFO))
3787 
3788 #define	VALID_IDNOP(op)		(((op) >= _IDN(1)) && ((op) <= _IDN(13)))
3789 
3790 #define	VALID_IDNIOCTL(op)	(VALID_IDNOP(op) || \
3791 				VALID_NDOP(op) || \
3792 				VALID_DLPIOP(op))
3793 
3794 typedef union idnop {
3795 	struct {
3796 		int		domid;		/* input */
3797 		int		cpuid;		/* input */
3798 		int		master;		/* input */
3799 		int		wait;		/* input */
3800 	} link;
3801 	struct {
3802 		int		domid;		/* input */
3803 		int		cpuid;		/* input */
3804 		int		force;		/* input */
3805 		int		wait;		/* input */
3806 	} unlink;
3807 	struct {
3808 		int		domid;		/* input */
3809 		int		cpuid;		/* input */
3810 	} ping;
3811 	struct {
3812 		uint_t		lo_off;		/* input */
3813 		uint_t		hi_off;		/* input */
3814 		int		blksize;	/* input */
3815 		int		num;		/* input */
3816 		int		rw;		/* input */
3817 		int		goawol;		/* input */
3818 	} rwmem;
3819 } idnop_t;
3820 
3821 #ifdef _KERNEL
3822 /*
3823  * ndd support for IDN tunables.
3824  */
3825 typedef struct idnparam {
3826 	ulong_t	sp_min;
3827 	ulong_t	sp_max;
3828 	ulong_t	sp_val;
3829 	char	*sp_name;
3830 } idnparam_t;
3831 
3832 extern idnparam_t	idn_param_arr[];
3833 
3834 #define	idn_modunloadable		idn_param_arr[0].sp_val
3835 #ifdef IDN_PERF
3836 #define	_LP	0
3837 #define	_xxx_tbd			idn_param_arr[_LP+1].sp_val
3838 #endif /* IDN_PERF */
3839 
3840 /*
3841  * =====================================================================
3842  */
3843 
3844 /*
3845  * Some junk to pretty print board lists and cpu lists in
3846  * log/console messages.  Length is big enough to display 64 double
3847  * digit cpus separated by a command and single space.  (Board list
3848  * is similar, but only 16 entries possible.
3849  */
3850 #define	_DSTRLEN		400
3851 #define	ALLOC_DISPSTRING()	((char *)kmem_alloc(_DSTRLEN, KM_NOSLEEP))
3852 #define	FREE_DISPSTRING(b)	(kmem_free((void *)(b), _DSTRLEN))
3853 
3854 /*
3855  * These are declared in idn.c.
3856  */
3857 extern const char	*idnds_str[];
3858 extern const char	*idnxs_str[];
3859 extern const char	*idngs_str[];
3860 extern const char	*idncmd_str[];
3861 extern const char	*idncon_str[];
3862 extern const char	*idnfin_str[];
3863 extern const char	*idnfinarg_str[];
3864 extern const char	*idnfinopt_str[];
3865 extern const char	*idnreg_str[];
3866 extern const char	*idnnack_str[];
3867 extern const char	*idnop_str[];
3868 extern const char	*idnsync_str[];
3869 extern const char	*chanop_str[];
3870 extern const char	*chanaction_str[];
3871 extern const char	*inum_str[];
3872 extern const int	inum_bump;
3873 extern const int	inum_max;
3874 extern const int	acknack_shift;
3875 
3876 extern const char	*timer_str[];
3877 extern const char	*res_str[];
3878 
3879 #endif /* _KERNEL */
3880 #endif /* !_ASM */
3881 
3882 #ifdef	__cplusplus
3883 }
3884 #endif
3885 
3886 #endif /* _SYS_IDN_H */
3887