xref: /titanic_41/usr/src/uts/sun4u/starfire/sys/idn.h (revision 704030f4517ac42005a5e3a4cb2fe578c959bfe2)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  *
25  * Inter-Domain Network
26  */
27 
28 #ifndef	_SYS_IDN_H
29 #define	_SYS_IDN_H
30 
31 #ifndef _ASM
32 
33 #ifdef _KERNEL
34 
35 #include <sys/note.h>
36 
37 #include <sys/cmn_err.h>
38 #include <sys/dditypes.h>
39 #include <sys/stream.h>
40 #include <sys/machsystm.h>
41 #include <sys/ethernet.h>
42 #include <sys/dlpi.h>
43 #include <sys/time.h>
44 #include <sys/kmem.h>
45 #include <sys/atomic.h>
46 #include <sys/cpuvar.h>
47 
48 #include <sys/idn_sigb.h>
49 #include <sys/idn_smr.h>
50 #endif /* _KERNEL */
51 
52 #ifdef	__cplusplus
53 extern "C" {
54 #endif
55 
56 typedef const char * const	procname_t;
57 
58 #define	MB2B(m)		((size_t)(m) << 20)	/* MBytes to Bytes */
59 #define	B2MB(b)		((uint_t)((b) >> 20))	/* Bytes to MBytes */
60 
61 #ifdef _KERNEL
62 
63 /*
64  * IDN_PROP_SMRSIZE	- User specified size in MBytes.
65  * IDN_PROP_SMRADDR	- OBP's internal physical address of the region.
66  *
67  *	OBP properties of "memory" node that define the SMR space.
68  */
69 #define	IDN_PROP_SMRSIZE	"idn-smr-size"
70 #define	IDN_PROP_SMRADDR	"idn-smr-addr"
71 
72 /*
73  * IDN_AWOLMSG_INTERVAL	(driver.conf)
74  *
75  *	Number of seconds between AWOL messages on a per-domain basis.
76  *	The purpose is to throttle the frequency at which these
77  *	messages appear.
78  *
79  * IDN_MSGWAIT_NEGO	(driver.conf)
80  * IDN_MSGWAIT_CFG
81  * IDN_MSGWAIT_CON
82  * IDN_MSGWAIT_FIN
83  * IDN_MSGWAIT_CMD
84  * IDN_MSGWAIT_DATA
85  *
86  *	Number of seconds to wait for response to respective
87  *	message type.
88  *
89  * IDN_RETRYFREQ_NEGO	(driver.conf)
90  * IDN_RETRYFREQ_CON
91  * IDN_RETRYFREQ_FIN
92  *
93  *	Number of seconds to wait between retries of the respective
94  *	message type.
95  *
96  * IDN_SMR_ALIGN	(not tunable)
97  *
98  *	The hardware registers that describe the SMR are based on a 64K
99  *	aligned physical address.
100  *
101  * IDN_SMR_SIZE		(OBP [only])
102  *
103  *	Total size of the SMR (Shared Memory Region) in bytes.
104  *
105  * IDN_NWR_SIZE		(driver.conf)
106  *
107  *	Total size of the NWR (NetWork Region) portion of the SMR which
108  *	is actually used to support network activity.  The NWR is managed
109  *	as simply a pool of I/O buffers which are distributed by the
110  *	Master domain to the Slaves for the purpose of communicating
111  *	between each other.  If not set then the entire SMR is used
112  *	as the NWR.
113  *	Req: IDN_NWR_SIZE <= IDN_SMR_SIZE
114  *
115  * IDN_SMR_BUFSIZE	(driver.conf)
116  *
117  *	Size of individual SMR buffers.  The SMR is divided into chunks
118  *	of IDN_SMR_BUFSIZE bytes.  The IDN_MTU is based on this size
119  *	and thus the IDN_SMR_BUFSIZE should be chosen based on performance.
120  *
121  * IDN_DATA_SIZE	(NOT tunable)
122  *
123  *	Portion of IDN_SMR_BUFSIZE that can contain raw non-IDN dependent
124  *	data.  We subtract IDN_ALIGNSIZE bytes to allow for fast bcopy
125  *	alignment.
126  *	Req: IDN_DATA_SIZE <=
127  *		(IDN_SMR_BUFSIZE - sizeof (smr_pkthdr_t) - IDN_ALIGNSIZE)
128  *
129  * IDN_MTU		(indirectly tunable via IDN_SMR_BUFSIZE)
130  *
131  * 	This size represents the portion of an SMR I/O buffers that can
132  *	contain (ethernet headerless) data.
133  *	Req: IDN_MTU <= IDN_DATA_SIZE - sizeof (ether_header)
134  *
135  * IDN_WINDOW_MAX	(driver.conf)
136  *
137  *	Maximum number of outstanding packets that are allowed per
138  *	domain.  If this value is exceeded for a particular domain
139  *	no further I/Os will be transmitted to that domain until it
140  *	has acknowledged enough of the previous transmission to bring
141  *	down its outstanding I/O count (idn_domain.dio) below this
142  *	value.  In addition, if this value is exceeded then a Timer
143  *	is scheduled to check for any response from the remote domain.
144  *
145  * IDN_WINDOW_INCR	(driver.conf)
146  *
147  *	As more channels/nets are activated on a particular domain
148  *	the greater the number of possible outstanding data packets
149  *	that can be outstanding to a given domain.  Since this natural
150  *	occurence can result in the outstanding-I/O count to a given
151  *	domain to increase we run the risk of dropping into the
152  *	IDN_WINDOW_MAX region even though the receiving domain
153  *	may be fine with handling the load.  In order to compensate
154  *	for this increased activity and to not incur unjustified
155  *	slips into the IDN_WINDOW_MAX region, the IDN_WINDOW_MAX
156  *	value is adjusted by IDN_WINDOW_INCR for each channel/net
157  *	that is activated for a given domain.
158  *
159  * IDN_WINDOW_EMAX	(not tunable)
160  *
161  *	The effective value of IDN_WINDOW_MAX once it has
162  *	been adjusted by IDN_WINDOW_INCR.
163  *
164  * IDN_RECLAIM_MIN	(driver.conf)
165  *
166  *	Minimum number of outstanding packets that our allowed
167  *	before subsequent sends will attempt to reclaim some number
168  *	of outstanding data packets.
169  *
170  * IDN_RECLAIM_MAX	(driver.conf)
171  *	This value represents the maximum number of outstanding
172  *	packets we will try to reclaim during a send once we've
173  *	passed the IDN_RECLAIM_MIN boundary.
174  *
175  * IDN_MODUNLOADABLE	(ndd)
176  *
177  *	By default the IDN driver is unloadable.  Setting this
178  *	variable will allow the IDN driver to be unloaded provided
179  *	it's not in use.
180  *
181  * IDN_LOWAT/IDN_HIWAT	(driver.conf)
182  *
183  *	Low/High water marks for the STREAM interface to IDN.
184  *
185  * IDN_MBOX_PER_NET	(driver.conf)
186  *
187  *	Number of mailbox entries that are allocated per channel/net.
188  *	This value effectively represents the amount of outstanding
189  *	activity that can reside at a domain.  Increasing this value
190  *	allows more packets to be in transit to a domain, however
191  *	at some point there are diminishing returns since the receiver
192  *	can only consume packets so fast.
193  *
194  * IDN_MAX_NETS		(driver.conf)
195  *
196  *	Maximum number of network interfaces (channels) that IDN
197  *	is currently configured to allow.  The absolute max is
198  *	IDN_MAXMAX_NETS.  We don't automatically default IDN_MAX_NETS
199  *	to IDN_MAXMAX_NETS because it would mean wasted space in
200  *	the mailbox region having to reserve mailboxes that will
201  *	very likely go unused.  The smaller this value the fewer
202  *	the number of mailboxes in the SMR and thus the greater the
203  *	number of possible I/O buffers available.
204  *	Req: IDN_MAX_NETS <= IDN_MAXMAX_NETS
205  *
206  * IDN_CHECKSUM		(driver.conf)
207  *
208  *	If enabled, IDN validates the smr_pkthdr_t of incoming packets
209  *	via a checksum, and calculates the checksum for outgoing packets.
210  *	Only the first 3 fields of smr_pkthdr_t are checksummed and
211  *	must be set to their expected values prior to calculating the
212  *	checksum.  Turned OFF by default when compiled DEBUG.
213  *
214  * IDN_SMR_MAXSIZE	(not tunable)
215  *
216  *	The absolute maximum size of the SMR region that we'll allow.
217  *	Note that the virtual address space comes out kernelmap.
218  */
219 #define	IDN_AWOLMSG_INTERVAL	60		/* seconds */
220 #define	IDN_MSGWAIT_NEGO	20		/* seconds */
221 #define	IDN_MSGWAIT_CFG		40
222 #define	IDN_MSGWAIT_CON		20
223 #define	IDN_MSGWAIT_FIN		40
224 #define	IDN_MSGWAIT_CMD		40
225 #define	IDN_MSGWAIT_DATA	30
226 #define	IDN_RETRYFREQ_NEGO	2
227 #define	IDN_RETRYFREQ_CON	2
228 #define	IDN_RETRYFREQ_FIN	3
229 
230 #define	IDN_SMR_BUFSIZE_MIN	512
231 #define	IDN_SMR_BUFSIZE_MAX	(512*1024)
232 #define	IDN_SMR_BUFSIZE_DEF	(16*1024)
233 
234 #define	IDN_SMR_SHIFT		(16)
235 #define	IDN_SMR_ALIGN		(1 << IDN_SMR_SHIFT)	/* 64K */
236 #define	IDN_SMR_SIZE		idn_smr_size
237 #define	IDN_NWR_SIZE		idn_nwr_size
238 #define	IDN_SMR_BUFSIZE		idn_smr_bufsize
239 #define	IDN_DATA_SIZE		(IDN_SMR_BUFSIZE \
240 				    - sizeof (smr_pkthdr_t) \
241 				    - IDN_ALIGNSIZE)
242 #define	IDN_MTU			(IDN_DATA_SIZE - sizeof (struct ether_header))
243 #define	IDN_WINDOW_MAX		idn_window_max
244 #define	IDN_WINDOW_INCR		idn_window_incr
245 #define	IDN_WINDOW_EMAX		idn_window_emax
246 #define	IDN_RECLAIM_MIN		idn_reclaim_min
247 #define	IDN_RECLAIM_MAX		idn_reclaim_max
248 #define	IDN_MODUNLOADABLE	idn_modunloadable
249 #define	IDN_LOWAT		idn_lowat
250 #define	IDN_HIWAT		idn_hiwat
251 #define	IDN_MBOX_PER_NET	idn_mbox_per_net
252 #define	IDN_MAX_NETS		idn_max_nets
253 #define	IDN_CHECKSUM		idn_checksum
254 #define	IDN_SMR_MAXSIZE		96
255 #define	_IDN_SMR_SIZE		32			/* 32M */
256 #define	_IDN_NWR_SIZE		_IDN_SMR_SIZE		/* 32M */
257 #define	_IDN_SMR_BUFSIZE	(16 * 1024)		/* 16K */
258 
259 
260 #define	IDN_TUNEVAR_NAME(v)	(*(char **)((ulong_t)&(v)+(sizeof (ulong_t))))
261 #define	IDN_TUNEVAR_VALUE(v)	(v)
262 
263 /*
264  * History structure to support problem analysis.
265  */
266 #define	IDN_HISTORY_NUM		1024
267 #define	IDN_HISTORY_LOG(op, d0, d1, d2) \
268 	if (idn_history) { \
269 		mutex_enter(&idnhlog.h_mutex); \
270 		idnhlog.h_log[idnhlog.h_index].e_time = TIMESTAMP(); \
271 		idnhlog.h_log[idnhlog.h_index].e_op = (ushort_t)(op); \
272 		idnhlog.h_log[idnhlog.h_index].e_data[0] = (ushort_t)(d0); \
273 		idnhlog.h_log[idnhlog.h_index].e_data[1] = (ushort_t)(d1); \
274 		idnhlog.h_log[idnhlog.h_index].e_data[2] = (ushort_t)(d2); \
275 		idnhlog.h_index++; \
276 		idnhlog.h_index &= (IDN_HISTORY_NUM - 1); \
277 		mutex_exit(&idnhlog.h_mutex); \
278 	}
279 
280 #define	IDNH_GSTATE	0x0001	/* d0=gstate, d1=, d2= */
281 #define	IDNH_DSTATE	0x0002	/* d0=domid, d1=dstate, d2=cpuid */
282 #define	IDNH_AWOL	0x0003	/* d0=domid, d1=dstate, d2=cpuid */
283 #define	IDNH_MASTERID	0x0004	/* d0=masterid, d1=oldid, d2= */
284 #define	IDNH_NEGO	0x0005	/* d0=domid, d1=ds_trans_on, d2=ds_connected */
285 #define	IDNH_FIN	0x0006	/* d0=domid, d1=finstate, d2= */
286 #define	IDNH_RELINK	0x0007	/* d0=domid, d1=dstate, d2=ds_relink */
287 
288 struct idn_h_entry {
289 	hrtime_t	e_time;
290 	ushort_t	e_op;
291 	ushort_t	e_data[3];
292 };
293 
294 struct idn_history {
295 	kmutex_t		h_mutex;
296 	int			h_index;
297 	struct idn_h_entry	h_log[IDN_HISTORY_NUM];
298 };
299 #endif /* _KERNEL */
300 
301 /*
302  * IDN_SIGBPIL - Interrupt level at which IDN driver
303  *		 wakes up idn_sigbhandler_thread
304  */
305 #define	IDN_SIGBPIL	PIL_3
306 
307 /*
308  * Definition of sigbintr.sb_busy values which
309  * represents state of idn_sigbhandler.
310  */
311 #define	IDNSIGB_NOTREADY	((uchar_t)0)
312 #define	IDNSIGB_INACTIVE	((uchar_t)1)
313 #define	IDNSIGB_STARTED		((uchar_t)2)
314 #define	IDNSIGB_ACTIVE		((uchar_t)3)
315 #define	IDNSIGB_DIE		((uchar_t)4)
316 
317 /*
318  * Some Xfire based macros that assume 4 cpus per board.
319  */
320 #define	CPUID_TO_BOARDID(c)	((c) >> 2)
321 #define	MAX_CPU_PER_BRD		4
322 #define	CPUSET_TO_BOARDSET(cset, bset) \
323 	{ \
324 		register int	c, b; \
325 		(bset) = 0; \
326 		for (b = 0; b < MAX_BOARDS; b++) \
327 			for (c = 0; c < MAX_CPU_PER_BRD; c++) \
328 				if (CPU_IN_SET((cset), \
329 						(b * MAX_CPU_PER_BRD) + c)) \
330 					(bset) |= 1 << b; \
331 	}
332 
333 /*
334  * Macros to manipulate boardset and domainset masks.
335  */
336 typedef ushort_t boardset_t;	/* assumes max of 16 boards */
337 typedef ushort_t domainset_t;	/* assumes max of 16 domains */
338 
339 #define	BOARDSET(brd)		((boardset_t)(1 << (brd)))
340 #define	BOARDSET_ALL		((boardset_t)~0)
341 #define	BOARD_IN_SET(set, brd)	((set) & BOARDSET(brd))
342 #define	BOARDSET_ADD(set, brd)	((set) |= BOARDSET(brd))
343 #define	BOARDSET_DEL(set, brd)	((set) &= ~BOARDSET(brd))
344 #define	DOMAINSET(d)		((domainset_t)1 << (d))
345 #define	DOMAINSET_ALL		((domainset_t)~0)
346 #define	DOMAIN_IN_SET(s, d)	((s) & DOMAINSET(d))
347 #define	DOMAINSET_ADD(s, d)	((s) |= DOMAINSET(d))
348 #define	DOMAINSET_DEL(s, d)	((s) &= ~DOMAINSET(d))
349 
350 /*
351  * PFN_TO_SMADDR macro converts a PFN to a IDN_SMR_ALIGN'ed
352  * address suitable for the CIC bar/lar registers.
353  */
354 #if (IDN_SMR_SHIFT <= MMU_PAGESHIFT)
355 #define	PFN_TO_SMADDR(pfn)	((pfn) << (MMU_PAGESHIFT - IDN_SMR_SHIFT))
356 #else
357 #define	PFN_TO_SMADDR(pfn)	((pfn) >> (IDN_SMR_SHIFT - MMU_PAGESHIFT))
358 #endif
359 
360 /*
361  * Translate a physical address to a unique domain identifier.
362  * IMPORTANT - Assumes each board's memory is configured on a 8GB
363  *	       boundary. PA(8G) = PFN(1M).
364  */
365 #define	MEM8G_SHIFT			33	/* (1 << 33) == 8G */
366 #define	PADDR_TO_DOMAINID(paddr)	((int)((paddr) >> MEM8G_SHIFT) & 0xf)
367 
368 #define	VALID_NWROFFSET(off, align)	\
369 				(((uint_t)(off) >= 0) && \
370 				((size_t)(off) < MB2B(IDN_NWR_SIZE)) && \
371 				!((uint_t)(off) & ((align) - 1)))
372 #define	VALID_NWRADDR(addr, align) \
373 		(((caddr_t)(addr) >= idn.smr.vaddr) && \
374 		VALID_NWROFFSET(((caddr_t)(addr) - idn.smr.vaddr), (align)))
375 #define	VALID_DOMAINID(d)	(((d) >= 0) && ((d) < MAX_DOMAINS))
376 #define	VALID_UDOMAINID(d)	((d) < MAX_DOMAINS)
377 #define	VALID_CPUID(c)		(((c) >= 0) && ((c) < NCPU))
378 #define	VALID_CHANNEL(c)	(((c) >= 0) && ((c) < IDN_MAX_NETS))
379 #define	VALID_UCHANNEL(c)	((c) < IDN_MAX_NETS)
380 
381 /*
382  * The following are bit values of idn_debug, currently
383  * only useful if compiled with DEBUG.
384  */
385 #ifdef DEBUG
386 #define	STRING(sss)		char sss[20]
387 #define	INUM2STR(mm, ss)	inum2str((mm), (ss))
388 
389 #define	IDNDBG_XDC	0x00000001
390 #define	IDNDBG_XF	0x00000002
391 #define	IDNDBG_REGS	0x00000004
392 #define	IDNDBG_SMR	0x00000008
393 #define	IDNDBG_PROTO	0x00000010
394 #define	IDNDBG_STR	0x00000020
395 #define	IDNDBG_DRV	0x00000040
396 #define	IDNDBG_DATA	0x00000080
397 #define	IDNDBG_STATE	0x00000100
398 #define	IDNDBG_DLPI	0x00000200
399 #define	IDNDBG_KERN	0x00000400
400 #define	IDNDBG_ALLOC	0x00000800
401 #define	IDNDBG_REMAP	0x00001000
402 #define	IDNDBG_TIMER	0x00002000
403 #define	IDNDBG_CHAN	0x00004000
404 #define	IDNDBG_AWOL	0x00008000
405 #define	IDNDBG_SYNC	0x00010000
406 #define	_IDNDBG_UNUSED0	0x00020000
407 #define	IDNDBG_HITLIST	0x00040000
408 #define	IDNDBG_XMON	0x00080000
409 #define	IDNDBG_TEST	0x80000000
410 #define	IDNDBG_ALL	((uint_t)-1)
411 
412 #define	PR_ALL		if (idn_debug)	printf
413 #define	PR_XDC		if (idn_debug & IDNDBG_XDC)	printf
414 #define	PR_XF		if (idn_debug & IDNDBG_XF)	printf
415 #define	PR_REGS		if (idn_debug & IDNDBG_REGS)	printf
416 #define	PR_SMR		if (idn_debug & IDNDBG_SMR)	printf
417 #define	PR_PROTO	if (idn_debug & IDNDBG_PROTO)	printf
418 #define	PR_STR		if (idn_debug & IDNDBG_STR)	printf
419 #define	PR_DRV		if (idn_debug & IDNDBG_DRV)	printf
420 #define	PR_DATA		if (idn_debug & IDNDBG_DATA)	printf
421 #define	PR_STATE	if (idn_debug & IDNDBG_STATE)	printf
422 #define	PR_DLPI		if (idn_debug & IDNDBG_DLPI)	printf
423 #define	PR_KERN		if (idn_debug & IDNDBG_KERN)	printf
424 #define	PR_ALLOC	if (idn_debug & IDNDBG_ALLOC)	printf
425 #define	PR_REMAP	if (idn_debug & (IDNDBG_SMR|IDNDBG_REMAP))	printf
426 #define	PR_TIMER	if (idn_debug & IDNDBG_TIMER)	printf
427 #define	PR_CHAN		if (idn_debug & IDNDBG_CHAN)	printf
428 #define	PR_AWOL		if (idn_debug & (IDNDBG_PROTO|IDNDBG_AWOL))	printf
429 #define	PR_SYNC		if (idn_debug & IDNDBG_SYNC)	printf
430 #define	_PR_UNUSED0	if (idn_debug & _IDNDBG_UNUSED0)	printf
431 #define	PR_HITLIST	if (idn_debug & IDNDBG_HITLIST)	printf
432 #define	PR_XMON		if (idn_debug & IDNDBG_XMON)	printf
433 #define	PR_TEST		if (idn_debug & IDNDBG_TEST)	printf
434 #else
435 #define	STRING(sss)	char *sss = ""
436 #define	INUM2STR(mm, ss)
437 
438 #define	PR_ALL		if (0) printf
439 #define	PR_XDC		PR_ALL
440 #define	PR_XF		PR_ALL
441 #define	PR_REGS		PR_ALL
442 #define	PR_SMR		PR_ALL
443 #define	PR_PROTO	PR_ALL
444 #define	PR_STR		PR_ALL
445 #define	PR_DRV		PR_ALL
446 #define	PR_DATA		PR_ALL
447 #define	PR_STATE	PR_ALL
448 #define	PR_DLPI		PR_ALL
449 #define	PR_KERN		PR_ALL
450 #define	PR_ALLOC	PR_ALL
451 #define	PR_REMAP	PR_ALL
452 #define	PR_TIMER	PR_ALL
453 #define	PR_CHAN		PR_ALL
454 #define	PR_AWOL		PR_ALL
455 #define	PR_SYNC		PR_ALL
456 #define	PR_SNOOP	PR_ALL
457 #define	PR_HITLIST	PR_ALL
458 #define	PR_XMON		PR_ALL
459 #define	PR_TEST		PR_ALL
460 #endif /* DEBUG */
461 
462 #ifdef _KERNEL
463 /*
464  * IDN drivers fields.
465  *
466  * IDNMINPSZ	Minimum packet size the IDN supports.
467  *
468  * IDNMAXPSZ 	Maximum packet size that IDN supports from upper
469  *		layers.  Is equal to IDN_MTU + ether_header.  Note
470  *		that the IDN driver could support larger packets
471  *		however the infrastructure to support fragmentation
472  *		does not (and should not) exist with respect to
473  *		ethernet packet types.
474  */
475 #ifdef DEBUG
476 #define	IDNDESC		"Inter-Domain Network (DEBUG)"
477 #else
478 #define	IDNDESC		"Inter-Domain Network"
479 #endif /* DEBUG */
480 
481 #define	IDNIDNUM		8264
482 #define	IDNNAME			"idn"
483 #define	IDNMINPSZ		0	/* set at idnopen() */
484 #define	IDNMAXPSZ		0	/* set at idnopen() */
485 
486 #endif /* _KERNEL */
487 
488 /*
489  * IDN Global States.
490  */
491 typedef enum {
492 /*  0 */	IDNGS_OFFLINE = 0,	/* idle */
493 /*  1 */	IDNGS_CONNECT,		/* connecting initial domain */
494 /*  2 */	IDNGS_ONLINE,		/* master selected */
495 /*  3 */	IDNGS_DISCONNECT,	/* local is unlinking */
496 /*  4 */	IDNGS_RECONFIG,		/* selecting new master */
497 /*  5 */	_IDNGS_UNUNSED5,
498 /*  6 */	_IDNGS_UNUNSED6,
499 /*  7 */	_IDNGS_UNUNSED7,
500 /*  8 */	_IDNGS_UNUNSED8,
501 /*  9 */	_IDNGS_UNUNSED9,
502 /* 10 */	IDNGS_IGNORE		/* ignore requests (fault injection) */
503 } idn_gstate_t;
504 
505 #ifdef _KERNEL
506 
507 #define	TIMESTAMP()	(gethrtime() / 1000000ull)
508 
509 /*
510  * Spaced defined in:
511  *	sigblkp[cpu0.cpu_id]->sigb_idn.reserved1.
512  */
513 #define	IDNSB_GSTATE_NEW	0
514 #define	IDNSB_GSTATE_OLD	1
515 #define	IDNSB_MASTERCPU		2
516 #define	IDNSB_RESERVED		3
517 
518 #define	IDNSB_HWCHKPT_MAX	4
519 
520 #define	IDNSB_SIZE		72
521 /*
522  * This structure gets overlay onto:
523  *	sigblkp[cpu0.cpu_id]->sigb_idn.reserved1.
524  *
525  * This structure must be exactly IDNSB_SIZE bytes.
526  */
527 typedef struct idnsb {
528 	uchar_t		id_gstate;
529 	uchar_t		id_pgstate;
530 	uchar_t		id_master_board;
531 	uchar_t		id_pmaster_board;
532 
533 	uchar_t		reserved_DO_NOT_USE[24];	/* idnevent_t field */
534 
535 	struct {
536 		uchar_t	d_board;
537 		uchar_t	d_state;
538 	} id_status[MAX_DOMAINS];
539 	uint_t		id_hwstate;
540 	ushort_t	id_hwchkpt[IDNSB_HWCHKPT_MAX];
541 } idnsb_t;	/* sizeof = 72 (0x48) 18X bytes */
542 
543 
544 #define	IDNSB_DOMAIN_UPDATE(dp) \
545 	{ \
546 		mutex_enter(&idn.idnsb_mutex); \
547 		if (idn.idnsb) { \
548 			int	domid = (dp)->domid; \
549 			if ((dp)->dcpu == IDN_NIL_DCPU) \
550 				idn.idnsb->id_status[domid].d_board = \
551 						(uchar_t)0xff; \
552 			else if ((dp)->dvote.v.board == 0) \
553 				idn.idnsb->id_status[domid].d_board = \
554 					(uchar_t)CPUID_TO_BOARDID((dp)->dcpu); \
555 			else \
556 				idn.idnsb->id_status[domid].d_board = \
557 						(uchar_t)(dp)->dvote.v.board; \
558 			idn.idnsb->id_status[domid].d_state = \
559 				(uchar_t)(dp)->dstate; \
560 		} \
561 		mutex_exit(&idn.idnsb_mutex); \
562 	}
563 /*
564  * The following definitions and macros pertain to the
565  * id_hwstate and id_hwchkpt[] fields.
566  *
567  * id_hwstate (m = mark: 1=open, 2=close)
568  *	  0   1   2   3   4   5   6   7
569  *	---------------------------------
570  *	| m | m | m | m | XX unused XXX |
571  *	---------------------------------
572  *	  |   |   |   |
573  *	  |   |   |   +- CACHE
574  *	  |   |   +- CHAN
575  *	  |   +- LINK
576  *	  +- SMR
577  *
578  * Note that nibble 4 is used in DEBUG for noting cache
579  * flush progress through idnxf_flushall_ecache().  This
580  * will override id_hwchkpt[] since it only has room for
581  * 4 items, however the BBSRAM space is there and
582  * unofficially available :-o
583  *
584  * id_hwchkpt[0] = SMR boardset
585  * id_hwchkpt[1] = LINK boardset
586  * id_hwchkpt[2] = CHAN boardset
587  * id_hwchkpt[3] = CACHE boardset.
588  */
589 #define	IDNSB_CHKPT_SMR		0
590 #define	IDNSB_CHKPT_LINK	1
591 #define	IDNSB_CHKPT_CHAN	2
592 #define	IDNSB_CHKPT_CACHE	3
593 #define	IDNSB_CHKPT_UNUSED	4	/* This is the max you can have */
594 
595 #define	_CHKPT_MARKIT(item, mark) \
596 	{ \
597 		uint_t	mk = (((uint_t)((mark) & 0xf)) << \
598 			(((sizeof (uint_t) << 1) - 1 - (item)) << 2)); \
599 		uint_t	*sp = &idn.idnsb->id_hwstate; \
600 		ASSERT(idn.idnsb); \
601 		*sp &= ~(((uint_t)0xf) << (((sizeof (uint_t) << 1) \
602 			- 1 - (item)) << 2)); \
603 		*sp |= mk; \
604 	}
605 
606 #define	CHECKPOINT_OPENED(item, bset, mark) \
607 	{ \
608 		mutex_enter(&idn.idnsb_mutex); \
609 		if (idn.idnsb) { \
610 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
611 			_CHKPT_MARKIT((item), (mark));  \
612 			sp[item] |= ((ushort_t)(bset)); \
613 		} \
614 		mutex_exit(&idn.idnsb_mutex); \
615 	}
616 
617 #define	CHECKPOINT_CLOSED(item, bset, mark) \
618 	{ \
619 		mutex_enter(&idn.idnsb_mutex); \
620 		if (idn.idnsb) { \
621 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
622 			_CHKPT_MARKIT((item), (mark));  \
623 			sp[item] &= (ushort_t)~(bset); \
624 		} \
625 		mutex_exit(&idn.idnsb_mutex); \
626 	}
627 
628 #define	CHECKPOINT_CLEAR(item, mark) \
629 	{ \
630 		mutex_enter(&idn.idnsb_mutex); \
631 		if (idn.idnsb) { \
632 			ushort_t *sp = &idn.idnsb->id_hwchkpt[0]; \
633 			_CHKPT_MARKIT((item), (mark));  \
634 			sp[item] = 0; \
635 		} \
636 		mutex_exit(&idn.idnsb_mutex); \
637 	}
638 #ifdef DEBUG
639 #define	CHECKPOINT_CACHE_CLEAR_DEBUG(mark) \
640 			CHECKPOINT_CLEAR(IDNSB_CHKPT_UNUSED, (mark))
641 #define	CHECKPOINT_CACHE_STEP_DEBUG(bset, mark) \
642 			CHECKPOINT_OPENED(IDNSB_CHKPT_UNUSED, (bset), (mark))
643 #else
644 #define	CHECKPOINT_CACHE_CLEAR_DEBUG(mark)
645 #define	CHECKPOINT_CACHE_STEP_DEBUG(bset, mark)
646 #endif /* DEBUG */
647 
648 
649 #ifdef DEBUG
650 #define	IDN_GSTATE_TRANSITION(ns) \
651 	{ \
652 		hrtime_t	tstamp; \
653 		/*LINTED*/ \
654 		IDN_HISTORY_LOG(IDNH_GSTATE, (ns), 0, 0); \
655 		tstamp = TIMESTAMP(); \
656 		ASSERT(IDN_GLOCK_IS_EXCL()); \
657 		PR_STATE("GSTATE:%ld: (l=%d) %s(%d) -> %s(%d)\n", \
658 			(uint64_t)tstamp, __LINE__, \
659 			idngs_str[idn.state], idn.state, \
660 			idngs_str[ns], (ns)); \
661 		mutex_enter(&idn.idnsb_mutex); \
662 		if (idn.idnsb) { \
663 			idn.idnsb->id_pgstate = (uchar_t)idn.state; \
664 			idn.idnsb->id_gstate = (uchar_t)(ns); \
665 		} \
666 		mutex_exit(&idn.idnsb_mutex); \
667 		idn.state = (ns); \
668 	}
669 #else
670 #define	IDN_GSTATE_TRANSITION(ns) \
671 	{ \
672 		IDN_HISTORY_LOG(IDNH_GSTATE, (ns), 0, 0); \
673 		mutex_enter(&idn.idnsb_mutex); \
674 		if (idn.idnsb) { \
675 			idn.idnsb->id_pgstate = (uchar_t)idn.state; \
676 			idn.idnsb->id_gstate = (uchar_t)(ns); \
677 		} \
678 		mutex_exit(&idn.idnsb_mutex); \
679 		idn.state = (ns); \
680 	}
681 #endif /* DEBUG */
682 
683 /*
684  * IDN link/unlink operations occur asynchronously with respect to the
685  * caller.  The following definitions are to support the return of
686  * success/failure back to the original requesting thread.  It's
687  * unlikely to have multiple outstanding link/unlink requests so we
688  * just provide a very small cache of waiting list entries.  If the
689  * cache becomes exhausted then additional ones are kmem_alloc'd.
690  */
691 #define	IDNOP_CACHE_SIZE	3
692 #define	IDNOP_IN_CACHE(dwl)	\
693 	(((dwl) >= &idn.dopers->_dop_wcache[0]) && \
694 	((dwl) < &idn.dopers->_dop_wcache[IDNOP_CACHE_SIZE]))
695 
696 typedef struct dop_waitlist {
697 	struct dop_waitlist	*dw_next;
698 	domainset_t	dw_reqset;
699 	domainset_t	dw_domset;
700 	short		dw_op;
701 	domainset_t	dw_errset;
702 	idnsb_error_t	*dw_idnerr;
703 	short		dw_errors[MAX_DOMAINS];
704 } dop_waitlist_t;
705 
706 typedef uint_t	idn_xdcargs_t[4];
707 typedef uint_t	idn_chanset_t;
708 
709 /*
710  * Types of synchronization zones which a connection
711  * could be in.
712  */
713 typedef enum {
714 	IDNSYNC_NIL,
715 	IDNSYNC_CONNECT,
716 	IDNSYNC_DISCONNECT
717 } idn_synccmd_t;
718 
719 /*
720  * Type of sync-registration that is being requested.
721  */
722 typedef enum {
723 	IDNSYNC_REG_REG,
724 	IDNSYNC_REG_NEW,
725 	IDNSYNC_REG_QUERY
726 } idn_syncreg_t;
727 
728 #define	IDN_SYNC_NUMZONE	3
729 #define	IDN_SYNC_GETZONE(s)	((((s) != IDNSYNC_CONNECT) && \
730 				((s) != IDNSYNC_DISCONNECT)) ? \
731 				-1 : (int)(s) - 1)
732 #define	IDN_SYNC_GETTRANS(s)	(((s) == IDNSYNC_CONNECT) ? \
733 				idn.domset.ds_trans_on : \
734 				((s) == IDNSYNC_DISCONNECT) ? \
735 				idn.domset.ds_trans_off : 0)
736 
737 /*
738  * Generic states when in a state transition region.
739  * These ultimately map to domain states via
740  * a idn_xphase_t definition.  General model:
741  *
742  *		PEND
743  *		 /\
744  *	        /  \
745  *	       |    |
746  *             V    V
747  *          SENT--->RCVD
748  *	       \    /
749  *	        \  /
750  *	         VV
751  *		FINAL
752  *
753  * Start these types with PEND = 0 so that they're
754  * compatible with idnxs_state_table[] and idn_xphase_t
755  * phases that use the value as an index.
756  */
757 typedef enum {
758 /* 0 */		IDNXS_PEND = 0,
759 /* 1 */		IDNXS_SENT,
760 /* 2 */		IDNXS_RCVD,
761 /* 3 */		IDNXS_FINAL,
762 /* 4 */		IDNXS_NIL
763 } idn_xstate_t;
764 
765 /*
766  * Locking protocol:
767  *
768  *	Each routine is called with SYNC_LOCK and
769  *	the respective domain's DLOCK(EXCL) held.
770  *	The routines must return with these locks
771  *	still held.
772  */
773 struct idn_msgtype;
774 
775 typedef struct {
776 	int	t_state;
777 	int	(*t_check)(int domid, struct idn_msgtype *mtp,
778 				idn_xdcargs_t xargs);
779 	void	(*t_action)(int domid, struct idn_msgtype *mtp,
780 				idn_xdcargs_t xargs);
781 	void	(*t_error)(int domid, struct idn_msgtype *mtp,
782 				idn_xdcargs_t xargs);
783 } idn_trans_t;
784 
785 /*
786  * The callback routines (xt_final & xt_exit) are called with
787  * DLOCK and SYNC_LOCK held and they are required to return
788  * with these locks still held.
789  */
790 typedef struct {
791 	uint_t		xt_msgtype;
792 	idn_trans_t	xt_trans[4];
793 	void		(*xt_final)(int domid);
794 	void		(*xt_exit)(int domid, uint_t msgtype);
795 } idn_xphase_t;
796 
797 /*
798  * Synchronization entry representing the synchronization
799  * state with respect to a given domain for a given zone.
800  */
801 typedef struct idn_syncop {
802 	struct idn_syncop	*s_next;
803 	int			s_domid;
804 	idn_synccmd_t		s_cmd;
805 	int			s_msg;
806 
807 	domainset_t		s_set_exp;
808 	domainset_t		s_set_rdy;
809 	int			(*s_transfunc)(int domid, void *arg);
810 	void			*s_transarg;
811 #ifdef DEBUG
812 	int			s_query[MAX_DOMAINS];
813 #endif /* DEBUG */
814 } idn_syncop_t;
815 
816 #ifdef DEBUG
817 #define	IDN_SYNC_QUERY_INIT(d) \
818 			(bzero((caddr_t)idn_domain[d].dsync.s_query, \
819 				sizeof (idn_domain[d].dsync.s_query)))
820 #define	IDN_SYNC_QUERY_UPDATE(md, sd)	(idn_domain[md].dsync.s_query[sd]++)
821 #else /* DEBUG */
822 #define	IDN_SYNC_QUERY_INIT(d)
823 #define	IDN_SYNC_QUERY_UPDATE(md, sd)
824 #endif /* DEBUG */
825 
826 typedef struct {
827 	idn_syncop_t	*sc_op;
828 	int		sc_cnt;
829 } idn_synczone_t;
830 
831 #endif /* _KERNEL */
832 
833 /*
834  * Vote Ticket used during negotiations and elections.
835  *
836  * 31					  0
837  * -----------------------------------------
838  * |m...|....|pppp|....|Cbbb|bccc|cccB|BBB1|
839  * -----------------------------------------
840  * m	[31]	= master/slave
841  * .	[30:24]	= unused
842  * p	[23:20]	= priority
843  * .	[19:16]	= unused
844  * C	[15]    = connected (has master)
845  * b	[14:11]	= nmembrds-1
846  * c	[10:5]	= ncpus-1
847  * B	[4:1]	= board_id
848  * 1	[0]	= one
849  */
850 typedef union {
851 	struct {
852 		uint_t	master    :1;
853 		uint_t	unused0   :7;
854 		uint_t	priority  :4;
855 		uint_t	unused1   :4;
856 		uint_t	connected :1;
857 		uint_t	nmembrds  :4;
858 		uint_t	ncpus	  :6;
859 		uint_t	board	  :4;
860 		uint_t	one	  :1;
861 	} v;
862 	uint_t	ticket;
863 } idn_vote_t;
864 
865 #define	IDNVOTE_PRI_MASK	0xf
866 #define	IDNVOTE_MAXPRI		0xf
867 #define	IDNVOTE_MINPRI		0
868 #define	IDNVOTE_DEFPRI		1	/* must be larger than MINPRI */
869 /*
870  * Initially:
871  *	vote.v.priority = IDNVOTE_DEFPRI
872  *	vote.v.one	= 1
873  */
874 #define	IDNVOTE_INITIAL_TICKET	((IDNVOTE_DEFPRI << 20) | 1)
875 #define	IDNVOTE_PRIVALUE(vvv) \
876 	((int)vvv.v.priority + ((int)vvv.v.master ? IDNVOTE_MAXPRI : 0))
877 
878 /*
879  * During elections we only use the "elect" attributes of the
880  * election ticket, i.e. those physical attributes pertaining
881  * to the individual domain (priority, nboards, ncpus, board).
882  */
883 #define	IDNVOTE_ELECT_MASK	0x00f07fff
884 #define	IDNVOTE_ELECT(tkt)	((tkt).ticket & IDNVOTE_ELECT_MASK)
885 #define	IDNVOTE_BASICS_MASK	0x00f0ffff
886 #define	IDNVOTE_BASICS(tkt)	((tkt).ticket & IDNVOTE_BASICS_MASK)
887 
888 /*
889  * Values used in idn_select_master().
890  */
891 #define	MASTER_IS_NONE		0	/* index into master_select_table */
892 #define	MASTER_IS_OTHER		1
893 #define	MASTER_IS_LOCAL		2
894 #define	MASTER_IS_REMOTE	3
895 
896 typedef enum {
897 	MASTER_SELECT_VOTE,
898 	MASTER_SELECT_VOTE_RCFG,
899 	MASTER_SELECT_CONNECT,
900 	MASTER_SELECT_REMOTE,
901 	MASTER_SELECT_LOCAL,
902 	MASTER_SELECT_WAIT,
903 	MASTER_SELECT_ERROR
904 } idn_master_select_t;
905 
906 /*
907  * Used to synchronize completion of link/unlink with respect to
908  * the original requester (user).  Necessary since link establishment
909  * occurs asynchronously.
910  */
911 typedef enum {
912 /*  0 */	IDNOP_DISCONNECTED,	/* successfully disconnected */
913 /*  1 */	IDNOP_CONNECTED,	/* successfully established */
914 /*  2 */	IDNOP_ERROR		/* error trying to link/unlink */
915 } idn_opflag_t;
916 
917 /*
918  * IDN Protocol Messages.
919  * These are IDN version (IDN_VERSION) dependent.
920  *
921  *	----- 7, --- 6,5.................0
922  *	|  ack | nack | IDN message type |
923  *	----------------------------------
924  */
925 #define	IDN_VERSION	1
926 
927 /*
928  * Must be no more than 6-bits.  See DMV private data.
929  */
930 #define	IDNP_ACK	0x20
931 #define	IDNP_NACK	0x10
932 #define	IDNP_NULL	0x00
933 #define	IDNP_NEGO	0x01
934 #define	IDNP_CON	0x02
935 #define	IDNP_CFG	0x03
936 #define	IDNP_FIN	0x04
937 #define	IDNP_CMD	0x05
938 #define	IDNP_DATA	0x06
939 
940 #define	IDN_NUM_MSGTYPES	7
941 #define	IDNP_ACKNACK_MASK	(IDNP_ACK | IDNP_NACK)
942 #define	IDNP_MSGTYPE_MASK	0x0f
943 #define	VALID_MSGTYPE(m)	(((m) >= IDNP_NEGO) && ((m) < IDN_NUM_MSGTYPES))
944 
945 typedef struct idn_msgtype {
946 	ushort_t	mt_mtype;
947 	ushort_t	mt_atype;
948 	ushort_t	mt_cookie;
949 } idn_msgtype_t;
950 
951 /*
952  * IDN private data section of DMV layout (48 bits).
953  *
954  * 47......40,39.....34,33.....28,27..24,23......16,15..............0
955  * | version | msgtype | acktype |  did |   cpuid  |     cookie     |
956  * ------------------------------------------------------------------
957  *
958  * version	Local domain's version of IDN software.
959  * msgtype	Type of IDN message, e.g. nego, syn, etc.
960  * acktype	If msgtype is a ACK or NACK, then acktype is the
961  *		type of ack that we're receiving, e.g. ack/nego|ack.
962  * did		Local domain's ID (netid) - system-wide unique.
963  * cpuid	Local domain's CPU->cpu_id that sending message.
964  * cookie	Cookie assigned by remote domain for authentication.
965  *		For NEGO & NEGO+ACK messages, it's the cookie that
966  *		the sender expects the receiver to use in subsequent
967  *		messages.  The upper-eight bits represent a timer
968  *		cookie to associate timers with expected messages.
969  */
970 #endif /* !_ASM */
971 
972 #ifdef _KERNEL
973 
974 #define	_IDNPD_COOKIE_MASK	0xffff
975 #define	_IDNPD_COOKIE_SHIFT	32
976 #define	_IDNPD_VER_MASK		0xff
977 #define	_IDNPD_VER_SHIFT	24
978 #define	_IDNPD_MTYPE_MASK	0x3f
979 #define	_IDNPD_MTYPE_SHIFT	18
980 #define	_IDNPD_ATYPE_MASK	0x3f
981 #define	_IDNPD_ATYPE_SHIFT	12
982 #define	_IDNPD_DOMID_MASK	0xf
983 #define	_IDNPD_DOMID_SHIFT	8
984 #define	_IDNPD_CPUID_MASK	0xff
985 #define	_IDNPD_CPUID_SHIFT	0
986 
987 #define	_IDNPD_COOKIE_LEN	16
988 
989 #ifndef _ASM
990 
991 #define	IDN_PD2COOKIE(pdata) \
992 	(((uint_t)((pdata) >> _IDNPD_COOKIE_SHIFT)) & _IDNPD_COOKIE_MASK)
993 #define	IDN_PD2VER(pdata) \
994 	(((uint_t)((pdata) >> _IDNPD_VER_SHIFT)) & _IDNPD_VER_MASK)
995 #define	IDN_PD2MTYPE(pdata) \
996 	(((uint_t)((pdata) >> _IDNPD_MTYPE_SHIFT)) & _IDNPD_MTYPE_MASK)
997 #define	IDN_PD2ATYPE(pdata) \
998 	(((uint_t)((pdata) >> _IDNPD_ATYPE_SHIFT)) & _IDNPD_ATYPE_MASK)
999 #define	IDN_PD2DOMID(pdata) \
1000 	(((uint_t)((pdata) >> _IDNPD_DOMID_SHIFT)) & _IDNPD_DOMID_MASK)
1001 #define	IDN_PD2CPUID(pdata) \
1002 	(((uint_t)((pdata) >> _IDNPD_CPUID_SHIFT)) & _IDNPD_CPUID_MASK)
1003 
1004 #define	IDN_MAKE_PDATA(mtype, atype, cookie) \
1005 	((((uint64_t)(cookie) & UINT64_C(_IDNPD_COOKIE_MASK))	<< \
1006 					_IDNPD_COOKIE_SHIFT)	| \
1007 	(((uint64_t)idn.version & UINT64_C(_IDNPD_VER_MASK))	<< \
1008 					_IDNPD_VER_SHIFT)	| \
1009 	(((uint64_t)(mtype) & UINT64_C(_IDNPD_MTYPE_MASK))	<< \
1010 					_IDNPD_MTYPE_SHIFT)	| \
1011 	(((uint64_t)(atype) & UINT64_C(_IDNPD_ATYPE_MASK))	<< \
1012 					_IDNPD_ATYPE_SHIFT)	| \
1013 	(((uint64_t)idn.localid & UINT64_C(_IDNPD_DOMID_MASK))	<< \
1014 					_IDNPD_DOMID_SHIFT)	| \
1015 	(((uint64_t)CPU->cpu_id & UINT64_C(_IDNPD_CPUID_MASK))	<< \
1016 					_IDNPD_CPUID_SHIFT))
1017 
1018 #define	IDN_TCOOKIE(ck)		(((ck) >> 8) & 0xff)
1019 #define	IDN_DCOOKIE(ck)		((ck) & 0xff)
1020 #define	IDN_MAKE_COOKIE(d, t)	((((t) & 0xff) << 8) | ((d) & 0xff))
1021 
1022 /*
1023  * IDNP_NEGO
1024  *
1025  * 127........96,95........64,63........32,31.........0
1026  * |   vote     |             domainset               |
1027  * ----------------------------------------------------
1028  * vote		Local/Remote domain's vote ticket.
1029  * domainset	Mask of cpuids of domains to which
1030  *		sender is connected.  Position in domainset
1031  *		designates respective domainid.
1032  *		E.g. domainset[6] = 20 -> domainid 6 is
1033  *		accessible via cpuid 20.
1034  *		The slot for the receiving domain
1035  *		contains the masterid of the sending
1036  *		domain.  If the sending domain does
1037  *		not have a master then the entry will
1038  *		contain IDNNEG_NO_MASTER.
1039  *
1040  * These macros insert a domainid-cpuid pair into the
1041  * domainset to be subsequently passed in a NEGO message,
1042  * also retrieve the cpuid from the domainset for a
1043  * given domainid.
1044  *
1045  * Usage:
1046  *	Sending:
1047  *		mask = IDNNEG_DSET_MYMASK();
1048  *		IDNNEG_DSET_INIT(dset, mask)
1049  *		for (all domains except self)
1050  *			IDNNEG_DSET_SET(dset, domain, cpuid, mask);
1051  *
1052  *	Receiving:
1053  *		IDNNEG_DSET_GET_MASK(dset, recv_domid, recv_mask);
1054  *		for (all domains except recv_domid)
1055  *			IDNNEG_DSET_GET(dset, domid, cpuid, recv_mask);
1056  */
1057 typedef uint_t	idnneg_dset_t[3];
1058 
1059 #define	IDNNEG_NO_MASTER		0x3f
1060 #define	__IDNNEG_DSET_CLEAR(dset)	(bzero((caddr_t)(dset), \
1061 						sizeof (idnneg_dset_t)))
1062 #define	IDNNEG_DSET_MYMASK()		(idn_domain[idn.localid].dcpu)
1063 
1064 #define	IDNNEG_DSET_INIT(dset, mask) \
1065 	{ \
1066 		__IDNNEG_DSET_CLEAR(dset); \
1067 		IDNNEG_DSET_SET((dset), idn.localid, (mask), idn.localid); \
1068 	}
1069 
1070 #define	IDNNEG_DSET_SET(dset, domid, cpuid, mask) \
1071 	{ \
1072 		uint_t	_s = ((domid) & 0xf) * 6; \
1073 		int	_i = _s >> 5; \
1074 		uint_t	_s0 = _s & 0x1f; \
1075 		uint_t	_t = ((cpuid) ^ (mask)) & 0x3f; \
1076 		/*LINTED*/ \
1077 		ASSERT(((domid) == idn.localid) ? \
1078 			((mask) == idn.localid) : ((cpuid) != (mask))); \
1079 		(dset)[_i] |= _t << _s0; \
1080 		if ((_s0 + 6) > 32) \
1081 			(dset)[_i + 1] |= _t >> (32 - _s0);  \
1082 	}
1083 
1084 #define	__IDNNEG_DSET_GET(dset, domid, cpuid, mask, uncond) \
1085 	{ \
1086 		uint_t	_s = ((domid) & 0xf) * 6; \
1087 		int	_i = _s >> 5; \
1088 		uint_t	_s0 = _s & 0x1f; \
1089 		uint_t	_s1 = (_s + 6) & 0x1f; \
1090 		(cpuid) = ((dset)[_i] >> _s0) & 0x3f; \
1091 		if ((_s0 + 6) > 32) \
1092 			(cpuid) |= ((dset)[_i + 1] << (6 - _s1)) & 0x3f; \
1093 		if ((cpuid) || (uncond)) \
1094 			(cpuid) ^= (mask) & 0x3f; \
1095 		else \
1096 			(cpuid) = -1; \
1097 	}
1098 
1099 #define	IDNNEG_DSET_GET_MASK(dset, domid, mask) \
1100 		__IDNNEG_DSET_GET((dset), (domid), (mask), (domid), 1)
1101 
1102 #define	IDNNEG_DSET_GET_MASTER(dset, master) \
1103 		__IDNNEG_DSET_GET((dset), idn.localid, (master), \
1104 				idn.localid+MAX_DOMAINS, 0)
1105 
1106 #define	IDNNEG_DSET_SET_MASTER(dset, domid, master) \
1107 		IDNNEG_DSET_SET((dset), (domid), (master), \
1108 				(domid)+MAX_DOMAINS)
1109 
1110 #define	IDNNEG_DSET_GET(dset, domid, cpuid, mask) \
1111 		__IDNNEG_DSET_GET((dset), (domid), (cpuid), (mask), 0)
1112 
1113 /*
1114  * IDNP_CFG sub-types.
1115  *
1116  * Format of first 32 bit word in XDC:
1117  *	stX  = sub-type.
1118  *	staX = sub-type arg.
1119  *	X    = position in idn_cfgsubtype_t.param.p[] array.
1120  *	num  = number of parameters in this XDC (0-3)
1121  *
1122  *      31...28,27...24,23...20,19...16,15...12,11....8,7.....3,2....0
1123  *	|  st0 .  sta0 |   st1 .  sta1 |   st2 .  sta2 | phase | num |
1124  *	--------------------------------------------------------------
1125  *
1126  * Note that since the first 32-bit word in a (IDNP_CFG) XDC is used
1127  * for a sub-type, subsequent three 32-bits words are used for data that
1128  * pertains to respective sub-type, i.e. first sub-type corresponds
1129  * to first of the 3x32-bit words (pos=0), second sub-type corresponds
1130  * to second of the 3x32-bit words (pos=1), etc.  Obviously, a max of
1131  * only three sub-types can be sent per xdc.
1132  */
1133 #define	IDNCFG_BARLAR		0x1	/* SMR base/limit pfn */
1134 #define	  IDNCFGARG_BARLAR_BAR		0	/* BAR */
1135 #define	  IDNCFGARG_BARLAR_LAR		1	/* LAR */
1136 #define	IDNCFG_MCADR		0x2	/* MC ADR, arg = board number */
1137 #define	IDNCFG_NMCADR		0x3	/* Number of MC ADRs to expect */
1138 #define	IDNCFG_CPUSET		0x4	/* dcpuset of remote domain */
1139 #define	  IDNCFGARG_CPUSET_UPPER  	0	/* 1st word */
1140 #define	  IDNCFGARG_CPUSET_LOWER  	1	/* 2nd word */
1141 #define	IDNCFG_NETID		0x5	/* dnetid, arg = 0 */
1142 #define	IDNCFG_BOARDSET		0x6	/* board set, arg = 0 */
1143 #define	IDNCFG_SIZE		0x7	/* SMR size parameters */
1144 #define	  IDNCFGARG_SIZE_MTU		0	/* IDN_MTU */
1145 #define	  IDNCFGARG_SIZE_BUF		1	/* IDN_SMR_BUFSIZE */
1146 #define	  IDNCFGARG_SIZE_SLAB		2	/* IDN_SLAB_BUFCOUNT */
1147 #define	  IDNCFGARG_SIZE_NWR		3	/* IDN_NWR_SIZE */
1148 #define	IDNCFG_DATAMBOX		0x8	/* SMR data mailbox info */
1149 #define	  IDNCFGARG_DATAMBOX_TABLE  	0	/* recvmbox table */
1150 #define	  IDNCFGARG_DATAMBOX_DOMAIN	1	/* domain's recvmbox */
1151 #define	  IDNCFGARG_DATAMBOX_INDEX	2	/* domain's index into table */
1152 #define	IDNCFG_DATASVR		0x9	/* Data server info */
1153 #define	  IDNCFGARG_DATASVR_MAXNETS	0	/* max # of nets/channels */
1154 #define	  IDNCFGARG_DATASVR_MBXPERNET	1	/* # mbox per net/channel */
1155 #define	IDNCFG_OPTIONS		0xa	/* various options */
1156 #define	  IDNCFGARG_CHECKSUM		0	/* IDN_CHECKSUM */
1157 
1158 #define	IDN_CFGPARAM(st, sta)	((uchar_t)((((st) & 0xf) << 4) | ((sta) & 0xf)))
1159 #define	IDN_CFGPARAM_TYPE(p)	(((p) >> 4) & 0xf)
1160 #define	IDN_CFGPARAM_ARG(p)	((p) & 0xf)
1161 
1162 typedef union {
1163 	struct {
1164 		uchar_t	p[3];
1165 		uchar_t	_num_phase;	/* info.num, info.phase used instead */
1166 	} param;
1167 	struct {
1168 		uint_t	_p	: 24;	/* param.p[] used instead */
1169 		uint_t	num	: 2;
1170 		uint_t	phase	: 6;
1171 	} info;
1172 	uint_t	val;
1173 } idn_cfgsubtype_t;
1174 
1175 /*
1176  * IDN_MASTER_NCFGITEMS
1177  *	Minimum number of config items expected from master.
1178  *
1179  * IDN_SLAVE_NCFGITEMS
1180  *	Number of config items expected from slave.
1181  */
1182 #define	IDN_MASTER_NCFGITEMS	17	/* max = +14 (mcadrs) */
1183 #define	IDN_SLAVE_NCFGITEMS	12
1184 
1185 /*
1186  * IDNP_CMD sub-types.
1187  */
1188 typedef enum {
1189 /*  1 */	IDNCMD_SLABALLOC = 1,	/* Request to allocate a slab */
1190 /*  2 */	IDNCMD_SLABFREE,	/* Request to free a slab */
1191 /*  3 */	IDNCMD_SLABREAP,	/* Reap any free slabs */
1192 /*  4 */	IDNCMD_NODENAME		/* Query nodename of domain */
1193 } idn_cmd_t;
1194 
1195 #define	VALID_IDNCMD(c)		(((int)(c) >= (int)IDNCMD_SLABALLOC) && \
1196 					((int)(c) <= (int)IDNCMD_NODENAME))
1197 /*
1198  * IDNP_NACK
1199  */
1200 typedef enum {
1201 /*  1 */	IDNNACK_NOCONN = 1,
1202 /*  2 */	IDNNACK_BADCHAN,
1203 /*  3 */	IDNNACK_BADCFG,
1204 /*  4 */	IDNNACK_BADCMD,
1205 /*  5 */	IDNNACK_RETRY,
1206 /*  6 */	IDNNACK_DUP,
1207 /*  7 */	IDNNACK_EXIT,
1208 /*  8 */	IDNNACK_RESERVED1,
1209 /*  9 */	IDNNACK_RESERVED2,
1210 /* 10 */	IDNNACK_RESERVED3
1211 } idn_nack_t;
1212 
1213 /*
1214  * IDNP_CON sub-types.
1215  */
1216 typedef enum {
1217 /*  0 */	IDNCON_OFF = 0,
1218 /*  1 */	IDNCON_NORMAL,		/* regular connect sequence */
1219 /*  2 */	IDNCON_QUERY		/* query for connect info */
1220 } idn_con_t;
1221 
1222 /*
1223  * IDNP_FIN sub-types.
1224  */
1225 typedef enum {
1226 /*  0 */	IDNFIN_OFF = 0,		/* active, no fin */
1227 /*  1 */	IDNFIN_NORMAL,		/* normal disconnect req */
1228 /*  2 */	IDNFIN_FORCE_SOFT,	/* normal dis, force if goes AWOL */
1229 /*  3 */	IDNFIN_FORCE_HARD,	/* force disconnect of AWOL domain */
1230 /*  4 */	IDNFIN_QUERY		/* query for fin info */
1231 } idn_fin_t;
1232 
1233 #define	VALID_FIN(f)		(((int)(f) > 0) && \
1234 					((int)(f) < (int)IDNFIN_QUERY))
1235 #define	FIN_IS_FORCE(f)		(((f) == IDNFIN_FORCE_SOFT) || \
1236 					((f) == IDNFIN_FORCE_HARD))
1237 
1238 /*
1239  * FIN ARG types - reasons a FIN was sent.
1240  */
1241 typedef enum {
1242 /*  0 */	IDNFIN_ARG_NONE = 0,		/* no argument */
1243 /*  1 */	IDNFIN_ARG_SMRBAD,		/* SMR is corrupted */
1244 /*  2 */	IDNFIN_ARG_CPUCFG,		/* missing cpu per board */
1245 /*  3 */	IDNFIN_ARG_HWERR,		/* error programming hardware */
1246 /*  4 */	IDNFIN_ARG_CFGERR_FATAL,	/* Fatal error during CONFIG */
1247 /*  5 */	IDNFIN_ARG_CFGERR_MTU,		/* MTU sizes conflict */
1248 /*  6 */	IDNFIN_ARG_CFGERR_BUF,		/* SMR_BUF_SIZE conflicts */
1249 /*  7 */	IDNFIN_ARG_CFGERR_SLAB,		/* SLAB sizes conflict */
1250 /*  8 */	IDNFIN_ARG_CFGERR_NWR,		/* NWR sizes conflict */
1251 /*  9 */	IDNFIN_ARG_CFGERR_NETS,		/* MAX_NETS conflict */
1252 /* 10 */	IDNFIN_ARG_CFGERR_MBOX,		/* MBOX_PER_NET conflict */
1253 /* 11 */	IDNFIN_ARG_CFGERR_NMCADR,	/* NMCADR mismatches actual */
1254 /* 12 */	IDNFIN_ARG_CFGERR_MCADR,	/* missing some MCADRs */
1255 /* 13 */	IDNFIN_ARG_CFGERR_CKSUM,	/* checksum settings conflict */
1256 /* 14 */	IDNFIN_ARG_CFGERR_SMR		/* SMR sizes conflict */
1257 } idn_finarg_t;
1258 
1259 #define	IDNFIN_ARG_IS_FATAL(fa)	((fa) > IDNFIN_ARG_NONE)
1260 
1261 #define	SET_FIN_TYPE(x, t) \
1262 		((x) &= 0xffff, (x) |= (((uint_t)(t) & 0xffff) << 16))
1263 #define	SET_FIN_ARG(x, a) \
1264 		((x) &= ~0xffff, (x) |= ((uint_t)(a) & 0xffff))
1265 #define	GET_FIN_TYPE(x)		((idn_fin_t)(((x) >> 16) & 0xffff))
1266 #define	GET_FIN_ARG(x)		((idn_finarg_t)((x) & 0xffff))
1267 
1268 #define	FINARG2IDNKERR(fa) \
1269 	(((fa) == IDNFIN_ARG_SMRBAD)	   ? IDNKERR_SMR_CORRUPTED : \
1270 	((fa) == IDNFIN_ARG_CPUCFG)	   ? IDNKERR_CPU_CONFIG	   : \
1271 	((fa) == IDNFIN_ARG_HWERR)	   ? IDNKERR_HW_ERROR	   : \
1272 	((fa) == IDNFIN_ARG_CFGERR_FATAL)  ? IDNKERR_HW_ERROR	   : \
1273 	((fa) == IDNFIN_ARG_CFGERR_MTU)    ? IDNKERR_CONFIG_MTU	   : \
1274 	((fa) == IDNFIN_ARG_CFGERR_BUF)    ? IDNKERR_CONFIG_BUF	   : \
1275 	((fa) == IDNFIN_ARG_CFGERR_SLAB)   ? IDNKERR_CONFIG_SLAB   : \
1276 	((fa) == IDNFIN_ARG_CFGERR_NWR)    ? IDNKERR_CONFIG_NWR    : \
1277 	((fa) == IDNFIN_ARG_CFGERR_NETS)   ? IDNKERR_CONFIG_NETS   : \
1278 	((fa) == IDNFIN_ARG_CFGERR_MBOX)   ? IDNKERR_CONFIG_MBOX   : \
1279 	((fa) == IDNFIN_ARG_CFGERR_NMCADR) ? IDNKERR_CONFIG_NMCADR : \
1280 	((fa) == IDNFIN_ARG_CFGERR_MCADR)  ? IDNKERR_CONFIG_MCADR  : \
1281 	((fa) == IDNFIN_ARG_CFGERR_CKSUM)  ? IDNKERR_CONFIG_CKSUM  : \
1282 	((fa) == IDNFIN_ARG_CFGERR_SMR)	   ? IDNKERR_CONFIG_SMR    : 0)
1283 
1284 /*
1285  * FIN SYNC types.
1286  */
1287 #define	IDNFIN_SYNC_OFF		0	/* not set */
1288 #define	IDNFIN_SYNC_NO		1	/* no-sync necessary */
1289 #define	IDNFIN_SYNC_YES		2	/* do fin synchronously */
1290 
1291 typedef short	idn_finsync_t;
1292 
1293 /*
1294  * IDNP_FIN options.
1295  */
1296 typedef enum {
1297 /*  0 */	IDNFIN_OPT_NONE = 0,	/* none (used w/query) */
1298 /*  1 */	IDNFIN_OPT_UNLINK,	/* normal unlink request */
1299 /*  2 */	IDNFIN_OPT_RELINK	/* disconnect and retry link */
1300 } idn_finopt_t;
1301 
1302 #define	VALID_FINOPT(f)		(((f) == IDNFIN_OPT_UNLINK) || \
1303 				((f) == IDNFIN_OPT_RELINK))
1304 
1305 #define	FIN_MASTER_DOMID(x)	(((((x) >> 16) & 0xffff) == 0xffff) ? \
1306 				IDN_NIL_DOMID : (((x) >> 16) & 0xffff))
1307 #define	FIN_MASTER_CPUID(x)	((((x) & 0xffff) == 0xffff) ? \
1308 				IDN_NIL_DCPU : ((x) & 0xfff))
1309 #define	MAKE_FIN_MASTER(d, c)	((((uint_t)(d) & 0xffff) << 16) | \
1310 				((uint_t)(c) & 0xffff))
1311 #define	NIL_FIN_MASTER		MAKE_FIN_MASTER(IDN_NIL_DOMID, IDN_NIL_DCPU)
1312 
1313 #ifdef DEBUG
1314 #define	IDN_FSTATE_TRANSITION(dp, ns) \
1315 	{ \
1316 		int	_id; \
1317 		_id = (dp)->domid; \
1318 		if ((dp)->dfin != (ns)) { \
1319 			hrtime_t	tstamp; \
1320 			tstamp = TIMESTAMP(); \
1321 			IDN_HISTORY_LOG(IDNH_FIN, _id, (ns), 0); \
1322 			PR_STATE("FSTATE:%ld:%d: (l=%d, b/p=%d/%d) " \
1323 				"%s(%d) -> %s(%d)\n", \
1324 				(uint64_t)tstamp, _id, \
1325 				__LINE__, \
1326 				((dp)->dcpu == IDN_NIL_DCPU) ? -1 : \
1327 					CPUID_TO_BOARDID((dp)->dcpu), \
1328 				(dp)->dcpu, \
1329 				idnfin_str[(dp)->dfin], (dp)->dfin, \
1330 				idnfin_str[ns], (ns)); \
1331 			(dp)->dfin = (ns); \
1332 		} \
1333 	}
1334 #else
1335 #define	IDN_FSTATE_TRANSITION(dp, ns) \
1336 	{ \
1337 		IDN_HISTORY_LOG(IDNH_FIN, (dp)->domid, (ns), 0); \
1338 		(dp)->dfin = (ns); \
1339 	}
1340 #endif /* DEBUG */
1341 
1342 #endif /* !_ASM */
1343 #endif /* _KERNEL */
1344 
1345 #ifndef _ASM
1346 /*
1347  * IDN Per-Domain States.
1348  */
1349 typedef enum {
1350 /*  0 */	IDNDS_CLOSED,		/* idle */
1351 /*  1 */	IDNDS_NEGO_PEND,	/* link initiating */
1352 /*  2 */	IDNDS_NEGO_SENT,	/* link initiated, nego sent */
1353 /*  3 */	IDNDS_NEGO_RCVD,	/* link wanted, nego+ack sent */
1354 /*  4 */	IDNDS_CONFIG,		/* passing config info, prgm hw */
1355 /*  5 */	IDNDS_CON_PEND,		/* connection pending */
1356 /*  6 */	IDNDS_CON_SENT,		/* con sent */
1357 /*  7 */	IDNDS_CON_RCVD,		/* con sent & received */
1358 /*  8 */	IDNDS_CON_READY,	/* ready to establish link */
1359 /*  9 */	IDNDS_CONNECTED,	/* established - linked */
1360 /* 10 */	IDNDS_FIN_PEND,		/* unlink initiating */
1361 /* 11 */	IDNDS_FIN_SENT,		/* unlink initiated, fin sent */
1362 /* 12 */	IDNDS_FIN_RCVD,		/* unlink wanted by remote */
1363 /* 13 */	IDNDS_DMAP		/* deprogramming hw */
1364 } idn_dstate_t;
1365 
1366 #define	IDNDS_IS_CLOSED(dp)	(((dp)->dstate == IDNDS_CLOSED) || \
1367 				((dp)->dstate == IDNDS_DMAP))
1368 #define	IDNDS_IS_CONNECTING(dp) (((dp)->dstate > IDNDS_CLOSED) && \
1369 				((dp)->dstate < IDNDS_CONNECTED))
1370 #define	IDNDS_IS_DISCONNECTING(dp)	((dp)->dstate > IDNDS_CONNECTED)
1371 #define	IDNDS_CONFIG_DONE(dp)	(((dp)->dstate == IDNDS_CLOSED) || \
1372 				((dp)->dstate > IDNDS_CONFIG))
1373 #define	IDNDS_SYNC_TYPE(dp)	(((dp)->dfin_sync != IDNFIN_SYNC_OFF) ? \
1374 				(dp)->dfin_sync : \
1375 					((dp)->dstate < IDNDS_CON_READY) ? \
1376 					IDNFIN_SYNC_NO : IDNFIN_SYNC_YES)
1377 
1378 #endif /* !_ASM */
1379 
1380 #ifdef _KERNEL
1381 #ifndef _ASM
1382 /*
1383  * ---------------------------------------------------------------------
1384  */
1385 typedef struct idn_timer {
1386 	struct idn_timer	*t_forw,
1387 				*t_back;
1388 	struct idn_timerq	*t_q;
1389 
1390 	timeout_id_t		t_id;
1391 	short			t_domid;
1392 	short			t_onq;
1393 	ushort_t		t_type;
1394 	ushort_t		t_subtype;
1395 	uint_t			t_cookie;
1396 #ifdef DEBUG
1397 	hrtime_t		t_posttime;
1398 	hrtime_t		t_exectime;
1399 #endif /* DEBUG */
1400 } idn_timer_t;
1401 
1402 #define	IDN_TIMER_PUBLIC_COOKIE		0xf
1403 
1404 #define	IDN_TIMERQ_IS_LOCKED(tq)	(MUTEX_HELD(&(tq)->tq_mutex))
1405 #define	IDN_TIMERQ_LOCK(tq)		(mutex_enter(&(tq)->tq_mutex))
1406 #define	IDN_TIMERQ_UNLOCK(tq)		(mutex_exit(&(tq)->tq_mutex))
1407 
1408 #define	IDN_TIMERQ_INIT(tq) 		(idn_timerq_init(tq))
1409 #define	IDN_TIMERQ_DEINIT(tq) 		(idn_timerq_deinit(tq))
1410 #define	IDN_TIMER_ALLOC()		(idn_timer_alloc())
1411 #define	IDN_TIMER_FREE(tp)		(idn_timer_free(tp))
1412 
1413 #define	IDN_TIMER_START(tq, tp, tim) \
1414 			(idn_timer_start((tq), (tp), (tim)))
1415 #define	IDN_TIMER_STOP(tq, typ, ck) \
1416 			((void) idn_timer_stop((tq), (typ), (ck)))
1417 #define	IDN_TIMER_STOPALL(tp) \
1418 			((void) idn_timer_stopall(tp))
1419 #define	IDN_TIMER_GET(tq, typ, tp, ck) \
1420 	{ \
1421 		mutex_enter(&((tq)->tq_mutex)); \
1422 		(tp) = idn_timer_get((tq), (typ), (ck)); \
1423 		mutex_exit(&((tq)->tq_mutex)); \
1424 	}
1425 #define	IDN_TIMER_DEQUEUE(tq, tp) \
1426 			(idn_timer_dequeue((tq), (tp)))
1427 #ifdef DEBUG
1428 #define	IDN_TIMER_POST(tp) \
1429 	((tp)->t_posttime = gethrtime(), (tp)->t_exectime = 0)
1430 #define	IDN_TIMER_EXEC(tp)	((tp)->t_exectime = gethrtime())
1431 #else /* DEBUG */
1432 #define	IDN_TIMER_POST(tp)
1433 #define	IDN_TIMER_EXEC(tp)
1434 #endif /* DEBUG */
1435 
1436 #define	IDN_MSGTIMER_START(domid, typ, subtyp, tim, ckp) \
1437 	{ \
1438 		idn_timer_t	*_tp; \
1439 		char		_str[15]; \
1440 		ushort_t	*_ckp = (ckp); \
1441 		inum2str((typ), _str); \
1442 		PR_TIMER("msgtimer:%d: START: type = %s (0x%x)\n", \
1443 				(domid), _str, (typ)); \
1444 		_tp = IDN_TIMER_ALLOC(); \
1445 		_tp->t_type	= (ushort_t)(typ); \
1446 		_tp->t_subtype	= (ushort_t)(subtyp); \
1447 		_tp->t_domid	= (short)(domid); \
1448 		_tp->t_cookie	= (_ckp) ? *(_ckp) : 0; \
1449 		IDN_TIMER_POST(_tp); \
1450 		if (_ckp) { \
1451 			*(_ckp) = IDN_TIMER_START(&idn_domain[domid].dtimerq, \
1452 						_tp, (tim)); \
1453 		} else { \
1454 			(void) IDN_TIMER_START(&idn_domain[domid].dtimerq, \
1455 						_tp, (tim)); \
1456 		} \
1457 	}
1458 #define	IDN_MSGTIMER_STOP(domid, typ, ck) \
1459 	{ \
1460 		char	_str[15]; \
1461 		inum2str((typ), _str); \
1462 		PR_TIMER("msgtimer:%d: STOP: type = %s (0x%x), " \
1463 			"cookie = 0x%x\n", \
1464 				(domid), _str, (typ), (ck)); \
1465 		IDN_TIMER_STOP(&idn_domain[domid].dtimerq, (typ), (ck)); \
1466 	}
1467 #define	IDN_MSGTIMER_GET(dp, typ, tp, ck) \
1468 			IDN_TIMER_GET(&(dp)->dtimerq, (typ), (tp), (ck))
1469 
1470 /*
1471  * IDN_SLABALLOC_WAITTIME
1472  *		Max wait time in ticks that local domains waits for
1473  *		master to respond to a slab allocation request.  Has
1474  *		to be at least as long as wait time for a response to
1475  *		the command.
1476  */
1477 #define	IDN_SLABALLOC_WAITTIME	((3 * idn_msg_waittime[IDNP_CMD]) / 2)
1478 
1479 /*
1480  * Domain state transition macros.
1481  */
1482 #ifdef DEBUG
1483 #define	IDN_DSTATE_TRANSITION(dp, ns) \
1484 	{ \
1485 		int		id; \
1486 		hrtime_t	tstamp; \
1487 		tstamp = TIMESTAMP(); \
1488 		ASSERT(RW_WRITE_HELD(&(dp)->drwlock)); \
1489 		id = (dp)->domid; \
1490 		IDN_HISTORY_LOG(IDNH_DSTATE, id, (ns), \
1491 				(uint_t)(dp)->dcpu); \
1492 		PR_STATE("DSTATE:%ld:%d: (l=%d, b/p=%d/%d) " \
1493 			"%s(%d) -> %s(%d)\n", \
1494 			(uint64_t)tstamp, id, \
1495 			__LINE__, \
1496 			((dp)->dcpu == IDN_NIL_DCPU) ? \
1497 				-1 : CPUID_TO_BOARDID((dp)->dcpu), \
1498 			(dp)->dcpu, \
1499 			idnds_str[(dp)->dstate], (dp)->dstate, \
1500 			idnds_str[ns], (ns)); \
1501 		(dp)->dstate = (ns); \
1502 		IDNSB_DOMAIN_UPDATE(dp); \
1503 	}
1504 #else
1505 #define	IDN_DSTATE_TRANSITION(dp, ns) \
1506 	{ \
1507 		IDN_HISTORY_LOG(IDNH_DSTATE, (dp)->domid, \
1508 			(ns), (uint_t)(dp)->dcpu); \
1509 		(dp)->dstate = (ns); \
1510 		IDNSB_DOMAIN_UPDATE(dp); \
1511 	}
1512 #endif /* DEBUG */
1513 
1514 #define	IDN_XSTATE_TRANSITION(dp, xs) \
1515 	{ \
1516 		int	_xs = (xs); \
1517 		(dp)->dxstate = _xs; \
1518 		if (_xs != IDNXS_NIL) { \
1519 			ASSERT((dp)->dxp); \
1520 			IDN_DSTATE_TRANSITION((dp), \
1521 				(dp)->dxp->xt_trans[_xs].t_state); \
1522 		} \
1523 	}
1524 
1525 /*
1526  * ---------------------------------------------------------------------
1527  * IDN Per-Domain Data
1528  *
1529  * The comment to the right of the respective field represents
1530  * what lock protects that field.  If there is no comment then
1531  * no lock is required to access the field.
1532  * ---------------------------------------------------------------------
1533  */
1534 
1535 #define	MAXDNAME	32
1536 
1537 typedef struct idn_domain {
1538 	krwlock_t	drwlock;
1539 			/*
1540 			 * Assigned domid for domain.  Never
1541 			 * changes once idn_domain[] is
1542 			 * initialized.  We are guaranteed that
1543 			 * all domains in IDN will have a
1544 			 * uniqueue domid in the range (0-15).
1545 			 */
1546 	int		domid;
1547 	idn_dstate_t	dstate;			/* drwlock */
1548 	idn_xstate_t	dxstate;		/* drwlock */
1549 			/*
1550 			 * Gotten from uname -n for local
1551 			 * domain.  Remote domains pass
1552 			 * theirs during Config phase.
1553 			 */
1554 	char		dname[MAXDNAME];	/* drwlock */
1555 			/*
1556 			 * IDN-wide unique identifier for the
1557 			 * given domain.  This value will be
1558 			 * the same as the domid.
1559 			 */
1560 	ushort_t	dnetid;			/* drwlock */
1561 	idn_vote_t	dvote;			/* drwlock */
1562 			/*
1563 			 * Used during FIN sequenece to
1564 			 * determine what type of shutdown
1565 			 * (unlink) we're executing with
1566 			 * respect to the given domain.
1567 			 */
1568 	idn_fin_t	dfin;			/* drwlock */
1569 			/*
1570 			 * A non-zero value for dfin_sync
1571 			 * indicates that unlink of respective
1572 			 * domain does not need to be performed
1573 			 * synchronously among all the IDN
1574 			 * member domains.
1575 			 */
1576 	short		dfin_sync;		/* grwlock */
1577 			/*
1578 			 * Cookie used to determine the
1579 			 * proper context in which we're
1580 			 * receiving messages from the given
1581 			 * domain.  Assigned cookies are exchanged
1582 			 * during initial NEGO messages.
1583 			 */
1584 	ushort_t	dcookie_send;		/* drwlock */
1585 	ushort_t	dcookie_recv;		/* drwlock */
1586 	short		dcookie_err;		/* drwlock */
1587 	int		dcookie_errcnt;		/* drwlock */
1588 			/*
1589 			 * Primary target cpu for sending
1590 			 * messages.  Can change to help
1591 			 * distribute interrupts on receiving
1592 			 * side.
1593 			 */
1594 	int		dcpu;			/* drwlock */
1595 			/*
1596 			 * Used to store dcpu from a previous
1597 			 * life.  Only used when requesting
1598 			 * a RELINK with a domain we were just
1599 			 * previously linked with.  Thus, it
1600 			 * does represent a valid cpu in the
1601 			 * remote domain.
1602 			 */
1603 	int		dcpu_save;		/* drwlock */
1604 			/*
1605 			 * Used to store from which cpu the
1606 			 * last message was received.
1607 			 */
1608 	int		dcpu_last;
1609 			/*
1610 			 * Transition phase area.  This field
1611 			 * points to the proper phase structure
1612 			 * depending on what stage the given
1613 			 * domain is in.
1614 			 */
1615 	idn_xphase_t	*dxp;			/* drwlock */
1616 			/*
1617 			 * Actual synchronization object for
1618 			 * the given domain.
1619 			 */
1620 	idn_syncop_t	dsync;	/* drwlock & idn.sync.sz_mutex */
1621 			/*
1622 			 * Slab information for given domain.
1623 			 * If the local domain is a master,
1624 			 * then this field in each domain is used
1625 			 * to store which slabs have been assigned
1626 			 * to given domain.  If the local domain
1627 			 * is a slave, then this information is
1628 			 * NULL for all remote idn_domain[]
1629 			 * entries, but for local domain holds
1630 			 * those slabs assigned to local domain.
1631 			 */
1632 	smr_slab_t	*dslab;			/* dslab_rwlock */
1633 	short		dnslabs;		/* dslab_rwlock */
1634 	short		dslab_state;		/* dslab_rwlock */
1635 	krwlock_t	dslab_rwlock;
1636 			/*
1637 			 * Set of cpus belonging to domain.
1638 			 */
1639 	cpuset_t	dcpuset;		/* drwlock */
1640 
1641 	int		dncpus;			/* drwlock */
1642 			/*
1643 			 * Index into dcpumap to determine
1644 			 * which cpu to target next for
1645 			 * interrupt.  Intended to allow fair
1646 			 * distribution of interrupts on
1647 			 * remote domain.
1648 			 */
1649 	uint_t		dcpuindex;		/* drwlock */
1650 			/*
1651 			 * Quick look-up map of cpus belonging
1652 			 * to domain.  Used to select next target.
1653 			 */
1654 	uchar_t		*dcpumap;		/* drwlock */
1655 			/*
1656 			 * Non-zero indicates outstanding
1657 			 * I/O's to given domain.
1658 			 */
1659 	int		dio;			/* drwlock */
1660 	int		dioerr;			/* drwlock */
1661 			/*
1662 			 * Set when we fail to allocate a buffer
1663 			 * for a domain.  Dictates whether to
1664 			 * reclaim max buffers or not.
1665 			 */
1666 	lock_t		diowanted;
1667 			/*
1668 			 * Set when remote domain does not
1669 			 * seem to be picking up messages sent
1670 			 * to it.  Non-zero indicates we have
1671 			 * an outstanding "ping" to domain.
1672 			 */
1673 	lock_t		diocheck;		/* drwlock */
1674 	short		dslabsize;		/* drwlock */
1675 	uint_t		dmtu;			/* drwlock */
1676 
1677 	uint_t		dbufsize;		/* drwlock */
1678 	short		dnwrsize;		/* drwlock */
1679 	lock_t		dreclaim_inprogress;	/* drwlock */
1680 	uchar_t		dreclaim_index;		/* drwlock */
1681 			/*
1682 			 * The following field is primarily
1683 			 * used during CFG exchange to keep
1684 			 * track of certain per-domain information.
1685 			 */
1686 	union {					/* all - drwlock */
1687 		struct {
1688 			uint_t	_dcfgphase	: 6;
1689 			uint_t	_dcfgsnddone	: 1;
1690 			uint_t	_dcfgrcvdone	: 1;
1691 			uint_t	_dcksum		: 2;
1692 			uint_t	_dmaxnets	: 6;
1693 			uint_t	_dmboxpernet	: 9;
1694 			uint_t	_dncfgitems	: 6;
1695 			uint_t	_drecfg		: 1;
1696 			} _s;
1697 		int	_dtmp;
1698 	} _u;
1699 			/*
1700 			 * Each domain entry maintains a
1701 			 * timer queue holding timers for
1702 			 * messages outstanding to that domain.
1703 			 */
1704 	struct idn_timerq {
1705 		int		tq_cookie;	/* tq_mutex */
1706 		kmutex_t	tq_mutex;
1707 		int		tq_count;	/* tq_mutex */
1708 		idn_timer_t	*tq_queue;	/* tq_mutex */
1709 	} dtimerq;
1710 			/*
1711 			 * dawol is used to keep
1712 			 * track of AWOL details for
1713 			 * given domain when it is
1714 			 * non-responsive.
1715 			 */
1716 	struct {
1717 		int		a_count;	/* drwlock */
1718 		clock_t		a_time;		/* drwlock */
1719 		clock_t		a_last;		/* drwlock */
1720 		clock_t		a_msg;		/* drwlock */
1721 	} dawol;
1722 
1723 	struct hwconfig	{
1724 		short		dh_nboards;	/* drwlock */
1725 		short		dh_nmcadr;	/* drwlock */
1726 		boardset_t	dh_boardset;	/* drwlock */
1727 		uint_t		dh_mcadr[MAX_BOARDS];	/* drwlock */
1728 	} dhw;
1729 			/*
1730 			 * Mailbox information used to
1731 			 * send/recv messages to given domain.
1732 			 */
1733 	struct {
1734 		kmutex_t		m_mutex;
1735 		struct idn_mboxtbl	*m_tbl;		/* m_mutex */
1736 		struct idn_mainmbox	*m_send;	/* m_mutex */
1737 		struct idn_mainmbox	*m_recv;	/* m_mutex */
1738 	} dmbox;
1739 } idn_domain_t;
1740 
1741 typedef struct idn_timerq	idn_timerq_t;
1742 
1743 #define	dcfgphase	_u._s._dcfgphase
1744 #define	dcfgsnddone	_u._s._dcfgsnddone
1745 #define	dcfgrcvdone	_u._s._dcfgrcvdone
1746 #define	dcksum		_u._s._dcksum
1747 #define	dmaxnets	_u._s._dmaxnets
1748 #define	dmboxpernet	_u._s._dmboxpernet
1749 #define	dncfgitems	_u._s._dncfgitems
1750 #define	drecfg		_u._s._drecfg
1751 #define	dbindport	_u._dbindport
1752 #define	dconnected	_u._dconnected
1753 #define	dtmp		_u._dtmp
1754 
1755 #define	IDN_DLOCK_EXCL(dd)	(rw_enter(&idn_domain[dd].drwlock, RW_WRITER))
1756 #define	IDN_DLOCK_SHARED(dd)	(rw_enter(&idn_domain[dd].drwlock, RW_READER))
1757 #define	IDN_DLOCK_TRY_SHARED(dd) \
1758 				(rw_tryenter(&idn_domain[dd].drwlock, \
1759 						RW_READER))
1760 #define	IDN_DLOCK_DOWNGRADE(dd)	(rw_downgrade(&idn_domain[dd].drwlock))
1761 #define	IDN_DUNLOCK(dd)		(rw_exit(&idn_domain[dd].drwlock))
1762 #define	IDN_DLOCK_IS_EXCL(dd)	(RW_WRITE_HELD(&idn_domain[dd].drwlock))
1763 #define	IDN_DLOCK_IS_SHARED(dd)	(RW_READ_HELD(&idn_domain[dd].drwlock))
1764 #define	IDN_DLOCK_IS_HELD(dd)	(RW_LOCK_HELD(&idn_domain[dd].drwlock))
1765 
1766 #define	IDN_MBOX_LOCK(dd)	(mutex_enter(&idn_domain[dd].dmbox.m_mutex))
1767 #define	IDN_MBOX_UNLOCK(dd)	(mutex_exit(&idn_domain[dd].dmbox.m_mutex))
1768 
1769 #define	IDN_RESET_COOKIES(dd) \
1770 	(idn_domain[dd].dcookie_send = idn_domain[dd].dcookie_recv = 0)
1771 
1772 #define	DSLAB_STATE_UNKNOWN	0
1773 #define	DSLAB_STATE_LOCAL	1
1774 #define	DSLAB_STATE_REMOTE	2
1775 
1776 #define	DSLAB_READ_HELD(d)	RW_READ_HELD(&idn_domain[d].dslab_rwlock)
1777 #define	DSLAB_WRITE_HELD(d)	RW_WRITE_HELD(&idn_domain[d].dslab_rwlock)
1778 
1779 #define	DSLAB_LOCK_EXCL(d) \
1780 		rw_enter(&idn_domain[d].dslab_rwlock, RW_WRITER)
1781 #define	DSLAB_LOCK_SHARED(d) \
1782 		rw_enter(&idn_domain[d].dslab_rwlock, RW_READER)
1783 #define	DSLAB_LOCK_TRYUPGRADE(d) \
1784 		rw_tryupgrade(&idn_domain[d].dslab_rwlock)
1785 #define	DSLAB_UNLOCK(d)		rw_exit(&idn_domain[d].dslab_rwlock)
1786 
1787 /*
1788  * ---------------------------------------------------------------------
1789  * Macro to pick another target for the given domain.  This hopefully
1790  * improves performance by better distributing the SSI responsibilities
1791  * at the target domain.
1792  * ---------------------------------------------------------------------
1793  */
1794 #define	BUMP_INDEX(set, index) \
1795 	{ \
1796 		register int	p; \
1797 		for (p = (index)+1; p < NCPU; p++) \
1798 			if (CPU_IN_SET((set), p)) \
1799 				break; \
1800 		if (p >= NCPU) \
1801 			for (p = 0; p <= (index); p++) \
1802 				if (CPU_IN_SET((set), p)) \
1803 					break; \
1804 		if (!CPU_IN_SET((set), p)) { \
1805 			uint_t	_u32, _l32; \
1806 			_u32 = UPPER32_CPUMASK(set); \
1807 			_l32 = LOWER32_CPUMASK(set); \
1808 			cmn_err(CE_PANIC, \
1809 				"IDN: cpu %d not in cpuset 0x%x.%0x\n", \
1810 				p, _u32, _l32); \
1811 		} \
1812 		(index) = p; \
1813 	}
1814 
1815 #define	IDN_ASSIGN_DCPU(dp, cookie) \
1816 		((dp)->dcpu = (int)((dp)->dcpumap[(cookie) & (NCPU-1)]))
1817 
1818 /*
1819  * ---------------------------------------------------------------------
1820  * Atomic increment/decrement, swap, compare-swap functions.
1821  * ---------------------------------------------------------------------
1822  */
1823 #define	ATOMIC_INC(v)		atomic_inc_32((uint_t *)&(v))
1824 #define	ATOMIC_DEC(v)		atomic_dec_32((uint_t *)&(v))
1825 #define	ATOMIC_SUB(v, n)	atomic_add_32((uint_t *)&(v), -(n))
1826 #define	ATOMIC_CAS(a, c, n)	atomic_cas_32((uint32_t *)(a), (uint32_t)(c), \
1827 								(uint32_t)(n))
1828 #define	ATOMIC_SWAPL(a, v)	atomic_swap_32((uint32_t *)(a), (uint32_t)(v))
1829 
1830 /*
1831  * DMV vector interrupt support.
1832  *
1833  * A fixed-size circular buffer is maintained as a queue of
1834  * incoming interrupts.  The low-level idn_dmv_handler() waits
1835  * for an entry to become FREE and will atomically mark it INUSE.
1836  * Once he has filled in the appropriate fields it will be marked
1837  * as READY.  The high-level idn_handler() will be invoked and will
1838  * process all messages in the queue that are READY.  Each message
1839  * is marked PROCESS, a protojob job created and filled in, and
1840  * then the interrupt message is marked FREE for use in the next
1841  * interrupt.  The iv_state field is used to hold the relevant
1842  * state and is updated atomically.
1843  */
1844 #define	IDN_PIL			PIL_8
1845 #define	IDN_DMV_PENDING_MAX	128	/* per cpu */
1846 
1847 #endif /* !_ASM */
1848 
1849 #ifndef _ASM
1850 
1851 /*
1852  * The size of this structure must be a power of 2
1853  * so that we can do a simple shift to calculate
1854  * our offset into based on cpuid.
1855  */
1856 typedef struct idn_dmv_cpu {
1857 	uint32_t	idn_dmv_current;
1858 	int32_t		idn_dmv_lostintr;
1859 	lock_t		idn_dmv_active;
1860 	char		_padding[(2 * sizeof (uint64_t)) - \
1861 				sizeof (uint32_t) - \
1862 				sizeof (lock_t) - \
1863 				sizeof (int32_t)];
1864 } idn_dmv_cpu_t;
1865 
1866 typedef struct idn_dmv_data {
1867 	uint64_t	idn_soft_inum;
1868 	uint64_t	idn_dmv_qbase;
1869 	idn_dmv_cpu_t	idn_dmv_cpu[NCPU];
1870 } idn_dmv_data_t;
1871 
1872 /*
1873  * Requirements of the following data structure:
1874  *	- MUST be double-word (8 bytes) aligned.
1875  *	- _iv_head field MUST start on double-word boundary.
1876  *	- iv_xargs0 MUST start on double-word boundary
1877  *	  with iv_xargs1 immediately following.
1878  *	- iv_xargs2 MUST start on double-word boundary
1879  *	  with iv_xargs3 immediately following.
1880  */
1881 typedef struct idn_dmv_msg {
1882 	uint32_t	iv_next;	/* offset */
1883 	uchar_t		iv_inuse;
1884 	uchar_t		iv_ready;
1885 	ushort_t	_padding;
1886 	uint32_t	iv_head	  : 16;
1887 	uint32_t	iv_cookie : 16;
1888 	uint32_t	iv_ver    : 8;
1889 	uint32_t	iv_mtype  : 6;
1890 	uint32_t	iv_atype  : 6;
1891 	uint32_t	iv_domid  : 4;
1892 	uint32_t	iv_cpuid  : 8;
1893 	uint32_t	iv_xargs0;
1894 	uint32_t	iv_xargs1;
1895 	uint32_t	iv_xargs2;
1896 	uint32_t	iv_xargs3;
1897 } idn_dmv_msg_t;
1898 
1899 extern uint_t	idn_dmv_inum;
1900 extern uint_t	idn_soft_inum;
1901 
1902 /*
1903  * An IDN-network address has the following format:
1904  *
1905  *	31......16,15........0
1906  *	| channel |  dnetid  |
1907  *	----------------------
1908  * channel	- network interface.
1909  * netid	- idn_domain[].dnetid
1910  */
1911 #define	IDN_MAXMAX_NETS		32
1912 #define	IDN_BROADCAST_ALLCHAN	((ushort_t)-1)
1913 #define	IDN_BROADCAST_ALLNETID	((ushort_t)-1)
1914 
1915 typedef union {
1916 	struct {
1917 		ushort_t	chan;
1918 		ushort_t	netid;
1919 	} net;
1920 	uint_t	netaddr;
1921 } idn_netaddr_t;
1922 
1923 #define	CHANSET_ALL	(~((idn_chanset_t)0))
1924 #define	CHANSET(c) \
1925 		((idn_chanset_t)1 << ((c) & 31))
1926 #define	CHAN_IN_SET(m, c) \
1927 		(((m) & ((idn_chanset_t)1 << ((c) & 31))) != 0)
1928 #define	CHANSET_ADD(m, c) \
1929 		((m) |= ((idn_chanset_t)1 << ((c) & 31)))
1930 #define	CHANSET_DEL(m, c) \
1931 		((m) &= ~((idn_chanset_t)1 << ((c) & 31)))
1932 #define	CHANSET_ZERO(m)	((m) = 0)
1933 
1934 typedef enum {
1935 /*  0 */	IDNCHAN_OPEN,
1936 /*  1 */	IDNCHAN_SOFT_CLOSE,
1937 /*  2 */	IDNCHAN_HARD_CLOSE,
1938 /*  3 */	IDNCHAN_OFFLINE,
1939 /*  4 */	IDNCHAN_ONLINE
1940 } idn_chanop_t;
1941 
1942 /*
1943  * Retry support.
1944  */
1945 #define	IDN_RETRY_TOKEN(d, x)		((((d) & 0xf) << 16) | \
1946 					(0xffff & (uint_t)(x)))
1947 #define	IDN_RETRY_TOKEN2DOMID(t)	((int)(((t) >> 16) & 0xf))
1948 #define	IDN_RETRY_TOKEN2TYPE(t)		((idn_retry_t)((t) & 0xffff))
1949 #define	IDN_RETRY_TYPEALL		((idn_retry_t)0xffff)
1950 #define	IDN_RETRY_INTERVAL		hz	/* 1 sec */
1951 #define	IDN_RETRY_RECFG_MULTIPLE	10
1952 
1953 #define	IDN_RETRYINTERVAL_NEGO		(2 * hz)
1954 #define	IDN_RETRYINTERVAL_CON		(2 * hz)
1955 #define	IDN_RETRYINTERVAL_FIN		(2 * hz)
1956 
1957 typedef struct idn_retry_job {
1958 	struct idn_retry_job	*rj_prev;
1959 	struct idn_retry_job	*rj_next;
1960 	void			(*rj_func)(uint_t token, void *arg);
1961 	void			*rj_arg;
1962 	uint_t			rj_token;
1963 	short			rj_onq;
1964 	timeout_id_t		rj_id;
1965 } idn_retry_job_t;
1966 
1967 #define	IDNRETRY_ALLOCJOB() \
1968 	((idn_retry_job_t *)kmem_cache_alloc(idn.retryqueue.rq_cache, KM_SLEEP))
1969 #define	IDNRETRY_FREEJOB(j) \
1970 	(kmem_cache_free(idn.retryqueue.rq_cache, (void *)(j)))
1971 
1972 typedef enum {
1973 /*  0 */	IDNRETRY_NIL = 0,
1974 /*  1 */	IDNRETRY_NEGO,
1975 /*  2 */	IDNRETRY_CON,
1976 /*  3 */	IDNRETRY_CONQ,		/* for CON queries */
1977 /*  4 */	IDNRETRY_FIN,
1978 /*  5 */	IDNRETRY_FINQ,		/* for FIN queries */
1979 /*  6 */	IDN_NUM_RETRYTYPES
1980 } idn_retry_t;
1981 
1982 /*
1983  * ---------------------------------------------------------------------
1984  */
1985 typedef struct {
1986 	int		m_domid;
1987 	int		m_cpuid;
1988 	ushort_t	m_msgtype;
1989 	ushort_t	m_acktype;
1990 	ushort_t	m_cookie;
1991 	idn_xdcargs_t	m_xargs;
1992 } idn_protomsg_t;
1993 
1994 typedef struct idn_protojob {
1995 	struct idn_protojob	*j_next;
1996 	int			j_cache;
1997 	idn_protomsg_t		j_msg;
1998 } idn_protojob_t;
1999 
2000 typedef struct idn_protoqueue {
2001 	struct idn_protoqueue	*q_next;
2002 	idn_protojob_t		*q_joblist;
2003 	idn_protojob_t		*q_joblist_tail;
2004 	int			q_die;
2005 	int			q_id;
2006 	ksema_t			*q_morgue;
2007 	kthread_id_t		q_threadp;
2008 	kcondvar_t		q_cv;
2009 	kmutex_t		q_mutex;
2010 } idn_protoqueue_t;
2011 
2012 #define	IDN_PROTOCOL_NSERVERS		4
2013 #define	IDN_PROTOCOL_SERVER_HASH(d)	((d) % idn.nservers)
2014 #define	IDN_PROTOJOB_CHUNKS		(idn.nservers)
2015 
2016 /*
2017  * ---------------------------------------------------------------------
2018  * Data Server definitions.
2019  *
2020  *	idn_datasvr_t 	- Describes data server thread.
2021  *	. ds_id			- Per-domain identifier for data server.
2022  *	. ds_domid		- Domain which data server is handling.
2023  *	. ds_state		- Flag to enable/disable/terminate
2024  *				  data server.
2025  *	. ds_mboxp		- Pointer to data server's (local)
2026  *				  mailbox to be serviced.
2027  *	. ds_waittime		- cv_timedwait sleep time before
2028  *				  checking respective mailbox.
2029  *	. ds_threadp		- Pointer to data server thread.
2030  *	. ds_cv			- Condvar for sleeping.
2031  *	. ds_morguep		- Semaphore for terminating thread.
2032  *
2033  *	idn_mboxhdr_t	- Resides in SMR space (MUST be cache_linesize).
2034  *	. mh_svr_active		- Non-zero indicates data server is
2035  *				  actively reading mailbox for messages.
2036  *	. mh_svr_ready		- Non-zero indicates data server has
2037  *				  allocated and is ready to accept data.
2038  *	. mh_cookie		- Identifier primarily for debug purposes.
2039  *
2040  *	idn_mboxmsg_t	- Entry in the SMR space circular queue use to
2041  *			  represent a data packet.
2042  *	. mm_owner		- Non-zero indicates entry is available
2043  *				  to be processed by receiver's data server.
2044  *	. mm_flag		- Indicates whether entry needs to be
2045  *				  reclaimed by the sender.  Also holds error
2046  *				  indications (e.g. bad offset).
2047  *	. mm_offset		- SMR offset of respective data packet.
2048  *
2049  *	idn_mboxtbl_t	- Encapsulation of a per-domain mailbox (SMR space).
2050  *	. mt_header		- Header information for synchronization.
2051  *	. mt_queue		- Circular queue of idn_mboxmsg_t entries.
2052  *
2053  *	idn_mainmbox_t	- Encapsulation of main SMR recv/send mailboxes.
2054  *	. mm_mutex		- Protects mm_* entries, enqueuing, and
2055  *				  dequeuing of messages.  Also protects
2056  *				  updates to the route table pointed to
2057  *				  by mm_routetbl.
2058  *	. mm_count		- send: Current number of messages
2059  *					enqueued.
2060  *				- recv: Cumulative number of messages
2061  *					processed.
2062  *	. mm_max_count		- send: Maximum number of messages
2063  *					enqueued per iteration.
2064  *				  recv: Maximum number of messages
2065  *					dequeued per iteration.
2066  *	. mm_smr_mboxp		- Pointer to SMR (vaddr) space where
2067  *				  respective mailbox resides.
2068  * ---------------------------------------------------------------------
2069  */
2070 #define	IDN_MBOXHDR_COOKIE_TOP		((uint_t)0xc0c0)
2071 #define	IDN_MAKE_MBOXHDR_COOKIE(pd, sd, ch) \
2072 				((IDN_MBOXHDR_COOKIE_TOP << 16) \
2073 				| (((uint_t)(pd) & 0xf) << 12) \
2074 				| (((uint_t)(sd) & 0xf) << 8) \
2075 				| ((uint_t)(ch) & 0xf))
2076 #define	IDN_GET_MBOXHDR_COOKIE(mhp) \
2077 				((mhp)->mh_cookie & ~0xff00)
2078 #define	VALID_MBOXHDR(mhp, ch, cksum) \
2079 	((IDN_GET_MBOXHDR_COOKIE(mhp) == \
2080 			IDN_MAKE_MBOXHDR_COOKIE(0, 0, (ch))) && \
2081 	((cksum) == (*(mhp)).mh_cksum))
2082 /*
2083  * The number of entries in a mailbox queue must be chosen so
2084  * that (IDN_MMBOX_NUMENTRIES * sizeof (idn_mboxmsg_t)) is a multiple
2085  * of a cacheline size (64).
2086  */
2087 #define	IDN_MMBOX_NUMENTRIES		IDN_MBOX_PER_NET
2088 /*
2089  * We step through the mailboxes in effectively cacheline size
2090  * incremenents so that the source and receiving cpus are not competing
2091  * for the same cacheline when transmitting/receiving messages into/from
2092  * the mailboxes.  The hard requirement is that the step value be even
2093  * since the mailbox size will be chosen odd.  This allows us to wraparound
2094  * the mailbox uniquely touching each entry until we've exhausted them
2095  * all at which point we'll end up where we initially started and repeat
2096  * again.
2097  */
2098 #define	IDN_MMBOXINDEX_STEP	(((64 / sizeof (idn_mboxmsg_t)) + 1) & 0xfffe)
2099 #define	IDN_MMBOXINDEX_INC(i) \
2100 	{ \
2101 		if (((i) += IDN_MMBOXINDEX_STEP) >= IDN_MMBOX_NUMENTRIES) \
2102 			(i) -= IDN_MMBOX_NUMENTRIES; \
2103 	}
2104 
2105 #define	IDN_MMBOXINDEX_DIFF(i, j) \
2106 	(((i) >= (j)) ? (((i) - (j)) / IDN_MMBOXINDEX_STEP) \
2107 		: ((((i) + IDN_MMBOX_NUMENTRIES) - (j)) / IDN_MMBOXINDEX_STEP))
2108 
2109 /*
2110  * Require IDN_MBOXAREA_SIZE <= IDN_SLAB_SIZE so we don't waste
2111  * slab space.
2112  *
2113  * Each domain maintains a MAX_DOMAIN(16) entry mbox_table.  Each
2114  * entry represents a receive mailbox for a possible domain to which
2115  * the given domain may have a connection.  The send mailbox for each
2116  * respective domain is given to the local domain at the time of
2117  * connection establishment.
2118  */
2119 
2120 /*
2121  * ---------------------------------------------------------------------
2122  */
2123 #define	IDN_MBOXTBL_SIZE \
2124 	(IDNROUNDUP(((IDN_MBOX_PER_NET * sizeof (idn_mboxmsg_t)) \
2125 			+ sizeof (idn_mboxhdr_t)), IDN_ALIGNSIZE))
2126 
2127 /*
2128  * ---------------------------------------------------------------------
2129  * Each domain has idn_max_nets worth of possible mailbox tables
2130  * for each domain to which it might possibly be connected.
2131  * ---------------------------------------------------------------------
2132  */
2133 #define	IDN_MBOXAREA_SIZE \
2134 	(IDN_MBOXTBL_SIZE * IDN_MAX_NETS * MAX_DOMAINS * MAX_DOMAINS)
2135 #define	IDN_MBOXAREA_OFFSET(d) \
2136 	((d) * IDN_MBOXTBL_SIZE * IDN_MAX_NETS * MAX_DOMAINS)
2137 
2138 /*
2139  * ---------------------------------------------------------------------
2140  * Return the base of the mailbox area (set of tables) assigned
2141  * to the given domain id.
2142  * ---------------------------------------------------------------------
2143  */
2144 #define	IDN_MBOXAREA_BASE(m, d) \
2145 	((idn_mboxtbl_t *)(((ulong_t)(m)) + IDN_MBOXAREA_OFFSET(d)))
2146 
2147 /*
2148  * ---------------------------------------------------------------------
2149  * Return the pointer to the respective receive mailbox (table set)
2150  * for the given domain id relative to the given base mailbox table.
2151  * ---------------------------------------------------------------------
2152  */
2153 #define	IDN_MBOXTBL_PTR(t, d)	\
2154 	((idn_mboxtbl_t *)(((ulong_t)(t)) + ((d) * IDN_MBOXTBL_SIZE \
2155 				* IDN_MAX_NETS)))
2156 /*
2157  * ---------------------------------------------------------------------
2158  * Return the pointer to the actual target mailbox based on the
2159  * given channel in the given mailbox table.
2160  * ---------------------------------------------------------------------
2161  */
2162 #define	IDN_MBOXTBL_PTR_CHAN(t, c) \
2163 	((idn_mboxtbl_t *)(((ulong_t)(t)) + ((c) * IDN_MBOXTBL_SIZE)))
2164 
2165 #define	IDN_MBOXTBL_PTR_INC(t)	\
2166 	((t) = (idn_mboxtbl_t *)(((ulong_t)(t)) + IDN_MBOXTBL_SIZE))
2167 
2168 #define	IDN_MBOXCHAN_INC(i) \
2169 	{ \
2170 		if (++(i) == IDN_MAX_NETS) \
2171 			(i) = 0; \
2172 	}
2173 
2174 /*
2175  * ---------------------------------------------------------------------
2176  * Return the absolute location within the entire mailbox area
2177  * of the mboxtbl for the given primary and secondary domain and
2178  * channel.  Only relevant when done by the master.
2179  * ---------------------------------------------------------------------
2180  */
2181 #define	IDN_MBOXTBL_ABS_PTR(mt, pd, sd, ch) \
2182 		(IDN_MBOXTBL_PTR_CHAN( \
2183 			IDN_MBOXTBL_PTR( \
2184 				IDN_MBOXAREA_BASE((mt), (pd)), \
2185 				(sd)), \
2186 			(ch)))
2187 
2188 #define	IDN_BFRAME_SHIFT	idn.bframe_shift
2189 #define	IDN_BFRAME2OFFSET(bf)	((bf) << IDN_BFRAME_SHIFT)
2190 #define	IDN_BFRAME2ADDR(bf)	IDN_OFFSET2ADDR(IDN_BFRAME2OFFSET(bf))
2191 #define	IDN_OFFSET2BFRAME(off)	(((off) >> IDN_BFRAME_SHIFT) & 0xffffff)
2192 #define	IDN_ADDR2BFRAME(addr)	IDN_OFFSET2BFRAME(IDN_ADDR2OFFSET(addr))
2193 
2194 typedef struct idn_mboxmsg {
2195 	uint_t		ms_owner  : 1,
2196 			ms_flag   : 7,
2197 			ms_bframe : 24;
2198 } idn_mboxmsg_t;
2199 
2200 typedef idn_mboxmsg_t	idn_mboxq_t[1];
2201 
2202 #define	IDN_CKSUM_MBOX_COUNT	\
2203 			(((int)&((idn_mboxhdr_t *)(0))->mh_svr_ready) / 2)
2204 #define	IDN_CKSUM_MBOX(h)	\
2205 			(IDN_CHECKSUM ? \
2206 			idn_cksum((ushort_t *)(h), IDN_CKSUM_MBOX_COUNT) : 0)
2207 
2208 typedef struct idn_mboxhdr {
2209 	uint_t		mh_cookie;
2210 	uint_t		mh_svr_ready_ptr;
2211 	uint_t		mh_svr_active_ptr;
2212 	ushort_t	mh_svr_ready;
2213 	ushort_t	mh_svr_active;
2214 
2215 	uint_t		_padding[(64 -
2216 				(4*sizeof (uint_t)) -
2217 				(2*sizeof (ushort_t))) / sizeof (uint_t)];
2218 
2219 	uint_t		mh_cksum;
2220 } idn_mboxhdr_t;
2221 
2222 typedef struct idn_mboxtbl {
2223 	idn_mboxhdr_t	mt_header;
2224 	idn_mboxq_t	mt_queue;
2225 } idn_mboxtbl_t;
2226 
2227 #define	IDN_CHAN_DOMAIN_REGISTER(csp, dom) \
2228 	(DOMAINSET_ADD((csp)->ch_reg_domset, (dom)))
2229 
2230 #define	IDN_CHAN_DOMAIN_UNREGISTER(csp, dom) \
2231 	(DOMAINSET_DEL((csp)->ch_reg_domset, (dom)))
2232 
2233 #define	IDN_CHAN_DOMAIN_IS_REGISTERED(csp, dom) \
2234 	(DOMAIN_IN_SET((csp)->ch_reg_domset, (dom)))
2235 
2236 #define	IDN_CHANSVR_SCANSET_ADD_PENDING(csp, dom) \
2237 	{ \
2238 		register int _d; \
2239 		register uint64_t _domset; \
2240 		(dom) &= MAX_DOMAINS - 1;   	/* Assumes power of 2 */ \
2241 		_domset = 0ull; \
2242 		for (_d = 0; _d < (csp)->ch_recv_domcount; _d++) { \
2243 			if ((int)(((csp)->ch_recv_scanset_pending >> \
2244 						(_d * 4)) & 0xf) == (dom)) \
2245 				break; \
2246 			else \
2247 				_domset = (_domset << 4) | 0xfull; \
2248 		} \
2249 		if (_d == (csp)->ch_recv_domcount) { \
2250 			_domset &= (csp)->ch_recv_scanset_pending; \
2251 			_domset |= (uint64_t)(dom) << \
2252 					((csp)->ch_recv_domcount * 4); \
2253 			(csp)->ch_recv_domcount++; \
2254 			(csp)->ch_recv_scanset_pending = 0ull; \
2255 			for (_d = 0; _d < 16; \
2256 					_d += (csp)->ch_recv_domcount) { \
2257 				(csp)->ch_recv_scanset_pending |= _domset; \
2258 				_domset <<= (csp)->ch_recv_domcount * 4; \
2259 			} \
2260 		} \
2261 	}
2262 #define	IDN_CHANSVR_SCANSET_DEL_PENDING(csp, dom) \
2263 	{ \
2264 		register int _d; \
2265 		register uint64_t _domset; \
2266 		(dom) &= MAX_DOMAINS - 1;	/* Assumes power of 2 */ \
2267 		_domset = 0ull; \
2268 		for (_d = 0; _d < (csp)->ch_recv_domcount; _d++) { \
2269 			if ((int)(((csp)->ch_recv_scanset_pending >> \
2270 						(_d * 4)) & 0xf) == (dom)) \
2271 				break; \
2272 			else \
2273 				_domset = (_domset << 4) | 0xfull; \
2274 		} \
2275 		if (_d < (csp)->ch_recv_domcount) { \
2276 			_domset &= (csp)->ch_recv_scanset_pending; \
2277 			(csp)->ch_recv_scanset_pending >>= 4; \
2278 			(csp)->ch_recv_domcount--; \
2279 			for (; _d < (csp)->ch_recv_domcount; _d++) \
2280 				_domset |= (csp)->ch_recv_scanset_pending &\
2281 						(0xfull << (_d * 4)); \
2282 			(csp)->ch_recv_scanset_pending = 0ull; \
2283 			if ((csp)->ch_recv_domcount) { \
2284 				for (_d = 0; _d < 16; \
2285 					_d += (csp)->ch_recv_domcount) { \
2286 					(csp)->ch_recv_scanset_pending |= \
2287 						_domset; \
2288 					_domset <<= \
2289 						(csp)->ch_recv_domcount * 4; \
2290 				} \
2291 			} \
2292 		} \
2293 	}
2294 
2295 #define	IDN_CHAN_TRYLOCK_GLOBAL(csp)	\
2296 		mutex_tryenter(&(csp)->ch_mutex)
2297 #define	IDN_CHAN_LOCK_GLOBAL(csp)	\
2298 		mutex_enter(&(csp)->ch_mutex)
2299 #define	IDN_CHAN_UNLOCK_GLOBAL(csp)	\
2300 		mutex_exit(&(csp)->ch_mutex)
2301 #define	IDN_CHAN_GLOBAL_IS_LOCKED(csp)	\
2302 		(MUTEX_HELD(&(csp)->ch_mutex))
2303 
2304 #define	IDN_CHAN_LOCAL_IS_LOCKED(csp)	\
2305 		(MUTEX_HELD(&(csp)->ch_send.c_mutex) && \
2306 		MUTEX_HELD(&(csp)->ch_recv.c_mutex))
2307 #define	IDN_CHAN_LOCK_LOCAL(csp)	\
2308 		(mutex_enter(&(csp)->ch_recv.c_mutex, \
2309 		mutex_enter(&(csp)->ch_send.c_mutex))
2310 #define	IDN_CHAN_UNLOCK_LOCAL(csp) 	\
2311 		(mutex_exit(&(csp)->ch_send.c_mutex), \
2312 		mutex_exit(&(csp)->ch_recv.c_mutex))
2313 
2314 #define	IDN_CHAN_RECV_IS_LOCKED(csp)	\
2315 		(MUTEX_HELD(&(csp)->ch_recv.c_mutex))
2316 #define	IDN_CHAN_TRYLOCK_RECV(csp) 	\
2317 		(mutex_tryenter(&(csp)->ch_recv.c_mutex))
2318 #define	IDN_CHAN_LOCK_RECV(csp) 	\
2319 		(mutex_enter(&(csp)->ch_recv.c_mutex))
2320 #define	IDN_CHAN_UNLOCK_RECV(csp) 	\
2321 		(mutex_exit(&(csp)->ch_recv.c_mutex))
2322 
2323 #define	IDN_CHAN_SEND_IS_LOCKED(csp)	\
2324 		(MUTEX_HELD(&(csp)->ch_send.c_mutex))
2325 #define	IDN_CHAN_TRYLOCK_SEND(csp) 	\
2326 		(mutex_tryenter(&(csp)->ch_send.c_mutex))
2327 #define	IDN_CHAN_LOCK_SEND(csp) 	\
2328 		(mutex_enter(&(csp)->ch_send.c_mutex))
2329 #define	IDN_CHAN_UNLOCK_SEND(csp) 	\
2330 		(mutex_exit(&(csp)->ch_send.c_mutex))
2331 
2332 /*
2333  * A channel table is an array of pointers to mailboxes
2334  * for the respective domains for the given channel.
2335  * Used a cache for the frequently used items.  Respective
2336  * fields in mainmbox are updated just prior to sleeping.
2337  */
2338 
2339 /*
2340  * Reading c_state requires either c_mutex or ch_mutex.
2341  * Writing c_state requires both c_mutex and ch_mutex in the order:
2342  *	ch_mutex
2343  *	c_mutex
2344  */
2345 typedef struct idn_chaninfo {
2346 	kmutex_t	c_mutex;
2347 	uchar_t		c_state;	/* protected by c_mutex */
2348 	uchar_t		c_checkin;	/* asynchronous flag */
2349 	kcondvar_t	c_cv;
2350 	ushort_t	c_waiters;	/* protected by c_mutex */
2351 	ushort_t	c_inprogress;	/* protected by c_mutex */
2352 } idn_chaninfo_t;
2353 
2354 /*
2355  * Reading/Writing ch_state requires ch_mutex.
2356  * When updating both recv and send c_state's for the locks
2357  * must be grabbed in the following order:
2358  *	ch_mutex
2359  *	ch_recv.c_mutex
2360  *	ch_send.c_mutex
2361  * This order is necessary to prevent deadlocks.
2362  * In general ch_state is intended to represent c_state of
2363  * individual send/recv sides.  During state transitions the
2364  * ch_state and c_state values may be slightly different,
2365  * but eventually should end up identical.
2366  */
2367 typedef struct idn_chansvr {
2368 	uchar_t		ch_id;
2369 	uchar_t		ch_state;	/* protected by ch_mutex */
2370 	lock_t		ch_initlck;
2371 	lock_t		ch_actvlck;
2372 	domainset_t	ch_reg_domset;
2373 	kmutex_t	ch_mutex;
2374 
2375 	idn_chaninfo_t	ch_send;
2376 	int		_padding2[(64 -
2377 				(2*sizeof (uchar_t)) - (2*sizeof (lock_t)) -
2378 				sizeof (uint_t) - sizeof (kmutex_t) -
2379 				sizeof (idn_chaninfo_t)) / sizeof (int)];
2380 
2381 	idn_chaninfo_t	ch_recv;
2382 
2383 	uint64_t	ch_recv_scanset;
2384 	uint64_t	ch_recv_scanset_pending;
2385 
2386 	domainset_t	ch_recv_domset;
2387 	domainset_t	ch_recv_domset_pending;
2388 	short		ch_recv_domcount;
2389 	kcondvar_t	ch_recv_cv;
2390 	int		ch_recv_waittime;
2391 	int		ch_recv_changed;
2392 
2393 	kthread_id_t	ch_recv_threadp;
2394 	ksema_t		*ch_recv_morguep;
2395 	int		ch_bound_cpuid;
2396 	int		ch_bound_cpuid_pending;
2397 } idn_chansvr_t;
2398 
2399 typedef struct idn_mainmbox {
2400 	kmutex_t	mm_mutex;
2401 	short		mm_channel;
2402 	short		mm_domid;
2403 	ushort_t	mm_flags;
2404 	short		mm_type;
2405 
2406 	idn_chansvr_t	*mm_csp;	/* non-NULL indicates reg'd */
2407 	int		mm_count;
2408 	int		mm_dropped;
2409 	idn_mboxtbl_t	*mm_smr_mboxp;		/* SMR vaddr */
2410 
2411 	ushort_t	*mm_smr_activep;	/* SMR pointer */
2412 	ushort_t	*mm_smr_readyp;		/* SMR pointer */
2413 	int		mm_qiget;	/* next msg to get */
2414 	int		mm_qiput;	/* next slot to put msg */
2415 } idn_mainmbox_t;
2416 
2417 /*
2418  * mm_flags
2419  */
2420 #define	IDNMMBOX_FLAG_CORRUPTED		0x01
2421 /*
2422  * mm_type
2423  */
2424 #define	IDNMMBOX_TYPE_RECV		0x1
2425 #define	IDNMMBOX_TYPE_SEND		0x2
2426 
2427 #define	IDNMBOX_IS_RECV(m)	((m) == IDNMMBOX_TYPE_RECV)
2428 #define	IDNMBOX_IS_SEND(m)	((m) == IDNMMBOX_TYPE_SEND)
2429 
2430 /*
2431  * Period between sending wakeup xdc's to remote domain.
2432  */
2433 #define	IDN_CHANNEL_WAKEUP_PERIOD	(hz >> 1)
2434 /*
2435  * ms_flag bit values.
2436  */
2437 #define	IDN_MBOXMSG_FLAG_RECLAIM	0x1	/* needs to be reclaimed */
2438 #define	IDN_MBOXMSG_FLAG_INPROCESS	0x2
2439 #define	IDN_MBOXMSG_FLAG_ERR_BADOFFSET	0x4
2440 #define	IDN_MBOXMSG_FLAG_ERR_NOMBOX	0x8
2441 #define	IDN_MBOXMSG_FLAG_ERRMASK	0xc
2442 /*
2443  * ch_state/c_state bit values.
2444  */
2445 #define	IDN_CHANSVC_STATE_ATTACHED	0x01
2446 #define	IDN_CHANSVC_STATE_ENABLED	0x02
2447 #define	IDN_CHANSVC_STATE_ACTIVE	0x04
2448 #define	IDN_CHANSVC_STATE_FLUSH		0x10
2449 #define	IDN_CHANSVC_STATE_CORRUPTED	0x20
2450 #define	IDN_CHANSVC_STATE_MASK		0x07	/* ATTACHED/ENABLED/ACTIVE */
2451 
2452 #define	IDN_CHANSVC_PENDING_BITS	(IDN_CHANSVC_STATE_ATTACHED | \
2453 					IDN_CHANSVC_STATE_ENABLED)
2454 
2455 /*
2456  * GLOBAL
2457  */
2458 #define	IDN_CHANNEL_IS_ATTACHED(csp)	\
2459 		((csp)->ch_state & IDN_CHANSVC_STATE_ATTACHED)
2460 #define	IDN_CHANNEL_IS_DETACHED(csp)	\
2461 		(!IDN_CHANNEL_IS_ATTACHED(csp))
2462 #define	IDN_CHANNEL_IS_PENDING(csp)	\
2463 		(((csp)->ch_state & IDN_CHANSVC_STATE_MASK) == \
2464 			IDN_CHANSVC_PENDING_BITS)
2465 #define	IDN_CHANNEL_IS_ACTIVE(csp)	\
2466 		((csp)->ch_state & IDN_CHANSVC_STATE_ACTIVE)
2467 #define	IDN_CHANNEL_IS_ENABLED(csp)	\
2468 		((csp)->ch_state & IDN_CHANSVC_STATE_ENABLED)
2469 /*
2470  * SEND
2471  */
2472 #define	IDN_CHANNEL_IS_SEND_ACTIVE(csp)	\
2473 		((csp)->ch_send.c_state & IDN_CHANSVC_STATE_ACTIVE)
2474 /*
2475  * RECV
2476  */
2477 #define	IDN_CHANNEL_IS_RECV_ACTIVE(csp)	\
2478 		((csp)->ch_recv.c_state & IDN_CHANSVC_STATE_ACTIVE)
2479 #define	IDN_CHANNEL_IS_RECV_CORRUPTED(csp) \
2480 		((csp)->ch_recv.c_state & IDN_CHANSVC_STATE_CORRUPTED)
2481 
2482 
2483 #define	IDN_CHAN_SEND_INPROGRESS(csp)	((csp)->ch_send.c_inprogress++)
2484 #define	IDN_CHAN_SEND_DONE(csp) \
2485 	{ \
2486 		ASSERT((csp)->ch_send.c_inprogress > 0); \
2487 		if ((--((csp)->ch_send.c_inprogress) == 0) && \
2488 					((csp)->ch_send.c_waiters != 0)) \
2489 			cv_broadcast(&(csp)->ch_send.c_cv); \
2490 	}
2491 #define	IDN_CHAN_RECV_INPROGRESS(csp)	((csp)->ch_recv.c_inprogress++)
2492 #define	IDN_CHAN_RECV_DONE(csp) \
2493 	{ \
2494 		ASSERT((csp)->ch_recv.c_inprogress > 0); \
2495 		if ((--((csp)->ch_recv.c_inprogress) == 0) && \
2496 					((csp)->ch_recv.c_waiters != 0)) \
2497 			cv_broadcast(&(csp)->ch_recv.c_cv); \
2498 	}
2499 
2500 #define	IDN_CHANSVC_MARK_ATTACHED(csp)	\
2501 		((csp)->ch_state = IDN_CHANSVC_STATE_ATTACHED)
2502 #define	IDN_CHANSVC_MARK_DETACHED(csp)	\
2503 		((csp)->ch_state = 0)
2504 #define	IDN_CHANSVC_MARK_PENDING(csp)	\
2505 		((csp)->ch_state |= IDN_CHANSVC_STATE_ENABLED)
2506 #define	IDN_CHANSVC_MARK_DISABLED(csp)	\
2507 		((csp)->ch_state &= ~IDN_CHANSVC_STATE_ENABLED)
2508 #define	IDN_CHANSVC_MARK_ACTIVE(csp)	\
2509 		((csp)->ch_state |= IDN_CHANSVC_STATE_ACTIVE)
2510 #define	IDN_CHANSVC_MARK_IDLE(csp)	\
2511 		((csp)->ch_state &= ~IDN_CHANSVC_STATE_ACTIVE)
2512 
2513 #define	IDN_CHANSVC_MARK_RECV_ACTIVE(csp)	\
2514 		((csp)->ch_recv.c_state |= IDN_CHANSVC_STATE_ACTIVE)
2515 #define	IDN_CHANSVC_MARK_RECV_CORRUPTED(csp)	\
2516 		((csp)->ch_recv.c_state |= IDN_CHANSVC_STATE_CORRUPTED)
2517 #define	IDN_CHANSVC_MARK_SEND_ACTIVE(csp)	\
2518 		((csp)->ch_send.c_state |= IDN_CHANSVC_STATE_ACTIVE)
2519 
2520 typedef enum {
2521 	IDNCHAN_ACTION_DETACH,		/* DETACH (ATTACHED = 0) */
2522 	IDNCHAN_ACTION_STOP,		/* DISABLE (ENABLED = 0) */
2523 	IDNCHAN_ACTION_SUSPEND,		/* IDLE (ACTIVE = 0) */
2524 	IDNCHAN_ACTION_RESUME,
2525 	IDNCHAN_ACTION_RESTART,
2526 	IDNCHAN_ACTION_ATTACH
2527 } idn_chanaction_t;
2528 
2529 #define	IDN_CHANNEL_SUSPEND(c, w)	\
2530 		(idn_chan_action((c), IDNCHAN_ACTION_SUSPEND, (w)))
2531 #define	IDN_CHANNEL_RESUME(c)		\
2532 		(idn_chan_action((c), IDNCHAN_ACTION_RESUME, 0))
2533 #define	IDN_CHANNEL_STOP(c, w)	\
2534 		(idn_chan_action((c), IDNCHAN_ACTION_STOP, (w)))
2535 #define	IDN_CHANNEL_RESTART(c)		\
2536 		(idn_chan_action((c), IDNCHAN_ACTION_RESTART, 0))
2537 #define	IDN_CHANNEL_DETACH(c, w)	\
2538 		(idn_chan_action((c), IDNCHAN_ACTION_DETACH, (w)))
2539 #define	IDN_CHANNEL_ATTACH(c)		\
2540 		(idn_chan_action((c), IDNCHAN_ACTION_ATTACH, 0))
2541 
2542 /*
2543  * ds_waittime range values.
2544  * When a packet arrives the waittime starts at MIN and gradually
2545  * shifts up to MAX until another packet arrives.  If still no
2546  * packet arrives then we go to a hard sleep
2547  */
2548 #define	IDN_NETSVR_SPIN_COUNT		idn_netsvr_spin_count
2549 #define	IDN_NETSVR_WAIT_MIN		idn_netsvr_wait_min
2550 #define	IDN_NETSVR_WAIT_MAX		idn_netsvr_wait_max
2551 #define	IDN_NETSVR_WAIT_SHIFT		idn_netsvr_wait_shift
2552 
2553 /*
2554  * ---------------------------------------------------------------------
2555  * IDN Global Data
2556  *
2557  * The comment to the right of the respective field represents
2558  * what lock protects that field.  If there is no comment then
2559  * no lock is required to access the field.
2560  * ---------------------------------------------------------------------
2561  */
2562 typedef struct idn_global {				/* protected by... */
2563 	krwlock_t	grwlock;
2564 			/*
2565 			 * Global state of IDN w.r.t.
2566 			 * the local domain.
2567 			 */
2568 	idn_gstate_t	state;			/* grwlock */
2569 			/*
2570 			 * Version of the IDN driver.
2571 			 * Is passed in DMV header so that
2572 			 * other domains can validate they
2573 			 * support protocol used by local
2574 			 * domain.
2575 			 */
2576 	int		version;
2577 			/*
2578 			 * Set to 1 if SMR region properly
2579 			 * allocated and available.
2580 			 */
2581 	int		enabled;
2582 			/*
2583 			 * Local domains "domain id".
2584 			 */
2585 	int		localid;
2586 			/*
2587 			 * Domain id of the Master domain.
2588 			 * Set to IDN_NIL_DOMID if none
2589 			 * currently exists.
2590 			 */
2591 	int		masterid;		/* grwlock */
2592 			/*
2593 			 * Primarily used during Reconfiguration
2594 			 * to track the expected new Master.
2595 			 * Once the current IDN is dismantled
2596 			 * the local domain will attempt to
2597 			 * connect to this new domain.
2598 			 */
2599 	int		new_masterid;		/* grwlock */
2600 			/*
2601 			 * Number of protocol servers configured.
2602 			 */
2603 	int		nservers;
2604 
2605 	dev_info_t	*dip;
2606 
2607 	struct {
2608 		/*
2609 		 * dmv_inum
2610 		 *	Interrupt number assigned by
2611 		 *	DMV subsystem to IDN's DMV
2612 		 *	handler.
2613 		 * soft_inum
2614 		 *	Soft interrupt number assigned
2615 		 *	by OS (add_softintr) for Soft
2616 		 *	interrupt dispatched by DMV
2617 		 *	handler.
2618 		 */
2619 		uint_t	dmv_inum;
2620 		uint64_t soft_inum;
2621 		caddr_t	dmv_data;
2622 		size_t	dmv_data_len;
2623 	} intr;
2624 			/*
2625 			 * first_swlink
2626 			 *	Used as synchronization to
2627 			 *	know whether channels need
2628 			 *	to be activated or not.
2629 			 * first_hwlink
2630 			 *	Used as mechanism to determine
2631 			 *	whether local domain needs
2632 			 *	to publicize its SMR, assuming
2633 			 *	it is the Master.
2634 			 * first_hwmaster
2635 			 *	Domainid of the domain that
2636 			 *	was the master at the time
2637 			 * 	the hardware was programmed.
2638 			 *	We need to keep this so that
2639 			 *	we deprogram with respect to
2640 			 *	the correct domain that the
2641 			 *	hardware was originally
2642 			 *	programmed to.
2643 			 */
2644 	lock_t		first_swlink;
2645 	lock_t		first_hwlink;
2646 	short		first_hwmasterid;
2647 			/*
2648 			 * The xmit* fields are used to set-up a background
2649 			 * thread to monitor when a channel is ready to be
2650 			 * enabled again.  This is necessary since IDN
2651 			 * can't rely on hardware to interrupt it when
2652 			 * things are ready to go.  We need this ability
2653 			 * to wakeup our STREAMS queues.
2654 			 * Criteria for reenabling queues.
2655 			 *	gstate == IDNGS_ONLINE
2656 			 *	channel = !check-in
2657 			 *	buffers are available
2658 			 *
2659 			 * xmit_chanset_wanted
2660 			 *	Indicates which channels wish to have
2661 			 *	their queues reenabled when ready.
2662 			 * xmit_tid
2663 			 *	Timeout-id of monitor.
2664 			 */
2665 	kmutex_t	xmit_lock;
2666 	idn_chanset_t	xmit_chanset_wanted;	/* xmit_lock */
2667 	timeout_id_t	xmit_tid;		/* xmit_lock */
2668 
2669 	struct {
2670 		/*
2671 		 * ready
2672 		 *	Indicates SMR region allocated
2673 		 *	and available from OBP.
2674 		 * vaddr
2675 		 *	Virtual address assigned to SMR.
2676 		 * locpfn
2677 		 *	Page Frame Number associated
2678 		 *	with local domain's SMR.
2679 		 * rempfn
2680 		 *	Page Frame Number associated
2681 		 *	with remote (Master) domain's SMR.
2682 		 * rempfnlim
2683 		 *	PFN past end of remote domain's
2684 		 *	SMR.
2685 		 * prom_paddr/prom_size
2686 		 *	Physical address and size of
2687 		 *	SMR that were assigned by OBP.
2688 		 */
2689 		int		ready;
2690 		caddr_t		vaddr;
2691 		pfn_t		locpfn;
2692 		pfn_t		rempfn;		/* grwlock */
2693 
2694 		pfn_t		rempfnlim;	/* grwlock */
2695 		uint64_t	prom_paddr;
2696 
2697 		uint64_t	prom_size;
2698 	} smr;
2699 
2700 			/*
2701 			 * idnsb_mutex
2702 			 *	Protects access to IDN's
2703 			 *	sigblock area.
2704 			 * idnsb_eventp
2705 			 *	IDN's private area in sigblock
2706 			 *	used for signaling events
2707 			 *	regarding IDN state to SSP.
2708 			 * idnsb
2709 			 *	Area within IDN's private
2710 			 *	sigblock area used for tracking
2711 			 *	certain IDN state which might
2712 			 *	be useful during arbstop
2713 			 *	conditions (if caused by IDN!).
2714 			 */
2715 	kmutex_t	idnsb_mutex;
2716 	idnsb_event_t	*idnsb_eventp;
2717 	idnsb_t		*idnsb;
2718 
2719 	struct sigbintr {
2720 		/*
2721 		 * sb_mutex
2722 		 *	Protects sigbintr elements
2723 		 *	to synchronize execution of
2724 		 *	sigblock (IDN) mailbox handling.
2725 		 * sb_cpuid
2726 		 *	Cpu whose sigblock mailbox
2727 		 *	originally received IDN request
2728 		 *	from SSP.  Necessary to know
2729 		 *	where to put response.
2730 		 * sb_busy
2731 		 *	Flag indicating state of
2732 		 *	sigblock handler thread.
2733 		 *	Synchronize activity between
2734 		 *	SSP and current IDN requests that
2735 		 *	are in progress.
2736 		 * sb_cv
2737 		 *	Condition variable for sigblock
2738 		 *	handler thread to wait on.
2739 		 * sb_inum
2740 		 *	Soft interrupt number assigned
2741 		 *	by OS to handle soft interrupt
2742 		 *	request make by low-level (IDN)
2743 		 *	sigblock handler to dispatch actual
2744 		 *	processing of sigblock (mailbox)
2745 		 *	request.
2746 		 */
2747 		kmutex_t	sb_mutex;
2748 		uchar_t		sb_cpuid;	/* sigbintr.sb_mutex */
2749 		uchar_t		sb_busy;	/* sigbintr.sb_mutex */
2750 		kcondvar_t	sb_cv;		/* sigbintr.sb_mutex */
2751 		uint64_t	sb_inum;	/* sigbintr.sb_mutex */
2752 	} sigbintr;
2753 
2754 			/*
2755 			 * struprwlock, strup, sip, siplock
2756 			 *	Standard network streams
2757 			 *	handling structures to manage
2758 			 *	instances of IDN driver.
2759 			 */
2760 	krwlock_t	struprwlock;
2761 	struct idnstr	*strup;			/* struprwlock */
2762 
2763 	struct idn	*sip;			/* siplock */
2764 	kmutex_t	sipwenlock;
2765 	kmutex_t	siplock;
2766 
2767 			/*
2768 			 * Area where IDN maintains its kstats.
2769 			 */
2770 	kstat_t		*ksp;
2771 			/*
2772 			 * Number of domains that local domain
2773 			 * has "open".
2774 			 */
2775 	int		ndomains;		/* grwlock */
2776 			/*
2777 			 * Number of domains that local domain
2778 			 * has registered as non-responsive.
2779 			 */
2780 	int		nawols;			/* grwlock */
2781 			/*
2782 			 * Number of network channels (interfaces)
2783 			 * which are currently active.
2784 			 */
2785 	int		nchannels;		/* grwlock */
2786 			/*
2787 			 * Bitmask representing channels
2788 			 * that are currently active.
2789 			 */
2790 	idn_chanset_t	chanset;		/* grwlock */
2791 			/*
2792 			 * Array of channel (network/data) servers
2793 			 * that have been created.  Not necessarily
2794 			 * all active.
2795 			 */
2796 	idn_chansvr_t	*chan_servers;		/* elmts = ch_mutex */
2797 			/*
2798 			 * Pointer to sigblock handler thread
2799 			 * which ultimately processes SSP
2800 			 * IDN requests.
2801 			 */
2802 	kthread_id_t	sigb_threadp;
2803 			/*
2804 			 * Pointer to area used by Master
2805 			 * to hold mailbox structures.
2806 			 * Actual memory is in SMR.
2807 			 */
2808 	idn_mboxtbl_t	*mboxarea;		/* grwlock */
2809 
2810 	struct {
2811 		/*
2812 		 * IDN_SYNC_LOCK - Provides serialization
2813 		 * mechanism when performing synchronous
2814 		 * operations across domains.
2815 		 */
2816 		kmutex_t	sz_mutex;
2817 		/*
2818 		 * Actual synchronization zones for
2819 		 * CONNECT/DISCONNECT phases.
2820 		 */
2821 		idn_synczone_t	sz_zone[IDN_SYNC_NUMZONE];
2822 	} sync;					/* sz_mutex */
2823 
2824 	struct {
2825 		/*
2826 		 * ds_trans_on
2827 		 *	Set of domains which are trying
2828 		 *	to establish a link w/local.
2829 		 * ds_ready_on
2830 		 *	Set of domains which local knows
2831 		 *	are ready for linking, but has
2832 		 *	not yet confirmed w/peers.
2833 		 * ds_connected
2834 		 *	Set of domains that local has
2835 		 *	confirmed as being ready.
2836 		 * ds_trans_off
2837 		 *	Set of domains which are trying
2838 		 *	to unlink from local.
2839 		 * ds_ready_off
2840 		 *	Set of domains which local knows
2841 		 *	are ready for unlink, but has
2842 		 *	not yet confirmed w/peers.
2843 		 * ds_relink
2844 		 *	Set of domains we're expecting
2845 		 *	to relink with subsequent to
2846 		 *	a RECONFIG (new master selection).
2847 		 * ds_hwlinked
2848 		 *	Set of domains for which local
2849 		 *	has programmed its hardware.
2850 		 * ds_flush
2851 		 *	Set of domains requiring that
2852 		 *	local flush its ecache prior
2853 		 *	to unlinking.
2854 		 * ds_awol
2855 		 *	Set of domains believed to be
2856 		 *	AWOL - haven't responded to
2857 		 *	any queries.
2858 		 * ds_hitlist
2859 		 *	Set of domains which local domain
2860 		 *	is unlinking from and wishes to ignore
2861 		 *	any extraneous indirect link requests
2862 		 *	from other domains, e.g. during a
2863 		 *	Reconfig.
2864 		 */
2865 		domainset_t	ds_trans_on;	/* sz_mutex */
2866 		domainset_t	ds_ready_on;	/* sz_mutex */
2867 
2868 		domainset_t	ds_connected;	/* sz_mutex */
2869 		domainset_t	ds_trans_off;	/* sz_mutex */
2870 
2871 		domainset_t	ds_ready_off;	/* sz_mutex */
2872 		domainset_t	ds_relink;	/* sz_mutex */
2873 
2874 		domainset_t	ds_hwlinked;	/* sz_mutex */
2875 		domainset_t	ds_flush;	/* sz_mutex */
2876 
2877 		domainset_t	ds_awol;	/* sz_mutex */
2878 		domainset_t	ds_hitlist;	/* sz_mutex */
2879 	} domset;
2880 			/*
2881 			 * Bitmask identifying all cpus in
2882 			 * the local IDN.
2883 			 */
2884 	cpuset_t	dc_cpuset;
2885 			/*
2886 			 * Bitmask identifying all boards in
2887 			 * the local IDN.
2888 			 */
2889 	boardset_t	dc_boardset;
2890 
2891 	struct dopers {
2892 		/*
2893 		 * Waiting area for IDN requests,
2894 		 * i.e. link & unlinks.  IDN requests
2895 		 * are performed asynchronously so
2896 		 * we need a place to wait until the
2897 		 * operation has completed.
2898 		 *
2899 		 * dop_domset
2900 		 *	Identifies which domains the
2901 		 *	current waiter is interested in.
2902 		 * dop_waitcount
2903 		 *	Number of waiters in the room.
2904 		 * dop_waitlist
2905 		 *	Actual waiting area.
2906 		 * dop_freelist
2907 		 *	Freelist (small cache) of
2908 		 *	structs for waiting area.
2909 		 */
2910 		kmutex_t	dop_mutex;
2911 		kcondvar_t	dop_cv;		/* dop_mutex */
2912 		domainset_t	dop_domset;	/* dop_mutex */
2913 		int		dop_waitcount;	/* dop_mutex */
2914 		dop_waitlist_t	*dop_waitlist;	/* dop_mutex */
2915 		dop_waitlist_t	*dop_freelist;	/* dop_mutex */
2916 							/* dop_mutex */
2917 		dop_waitlist_t	_dop_wcache[IDNOP_CACHE_SIZE];
2918 	} *dopers;
2919 
2920 	struct {
2921 		/*
2922 		 * Protocol Server:
2923 		 *
2924 		 * p_server
2925 		 *	Linked list of queues
2926 		 *	describing protocol
2927 		 *	servers in use.
2928 		 * p_jobpool
2929 		 *	Kmem cache of structs
2930 		 *	used to enqueue protocol
2931 		 *	jobs for protocol servers.
2932 		 * p_morgue
2933 		 *	Synchronization (check-in)
2934 		 *	area used when terminating
2935 		 *	protocol servers (threads).
2936 		 */
2937 		struct idn_protoqueue	*p_serverq;
2938 		kmem_cache_t		*p_jobpool;
2939 		ksema_t			p_morgue;
2940 	} protocol;
2941 
2942 	struct idn_retry_queue {
2943 		/*
2944 		 * rq_jobs
2945 		 *	Queue of Retry jobs
2946 		 *	that are outstanding.
2947 		 * rq_count
2948 		 *	Number of jobs on retry
2949 		 *	queue.
2950 		 * rq_cache
2951 		 *	Kmem cache for structs
2952 		 *	used to describe retry
2953 		 *	jobs.
2954 		 */
2955 		idn_retry_job_t	*rq_jobs;	/* rq_mutex */
2956 		int		rq_count;	/* rq_mutex */
2957 		kmutex_t	rq_mutex;	/* rq_mutex */
2958 
2959 		kcondvar_t	rq_cv;		/* rq_mutex */
2960 		kmem_cache_t	*rq_cache;
2961 	} retryqueue;
2962 
2963 	struct slabpool {
2964 		/*
2965 		 * Slabpool:
2966 		 *
2967 		 * ntotslabs
2968 		 *	Total number of slabs
2969 		 *	in SMR (free & in-use).
2970 		 * npools
2971 		 *	Number of pools available
2972 		 *	in list.  One smr_slabtbl
2973 		 *	exists for each pool.
2974 		 */
2975 		int		ntotslabs;
2976 		int		npools;
2977 		struct smr_slabtbl {
2978 			/*
2979 			 * sarray
2980 			 *	Array of slab structs
2981 			 *	representing slabs in SMR.
2982 			 * nfree
2983 			 *	Number of slabs actually
2984 			 *	available in sarray.
2985 			 * nslabs
2986 			 *	Number of slabs represented
2987 			 *	in sarray (free & in-use).
2988 			 */
2989 			smr_slab_t	*sarray;
2990 			int		nfree;
2991 			int		nslabs;
2992 		} *pool;
2993 		/*
2994 		 * Holds array of smr_slab_t structs kmem_alloc'd
2995 		 * for slabpool.
2996 		 */
2997 		smr_slab_t	*savep;
2998 	} *slabpool;
2999 
3000 	struct slabwaiter {
3001 		/*
3002 		 * Waiting area for threads
3003 		 * requesting slab allocations.
3004 		 * Used by Slaves for all requests,
3005 		 * but used by Master only for
3006 		 * redundant requests, i.e. multiple
3007 		 * requests on behalf of the same
3008 		 * domain.  One slabwaiter area
3009 		 * exist for each possible domain.
3010 		 *
3011 		 * w_nwaiters
3012 		 *	Number of threads waiting
3013 		 *	in waiting area.
3014 		 * w_done
3015 		 *	Flag to indicate that
3016 		 *	allocation request has
3017 		 *	completed.
3018 		 * w_serrno
3019 		 *	Non-zero indicates an
3020 		 *	errno value to represent
3021 		 *	error that occurred during
3022 		 *	attempt to allocate slab.
3023 		 * w_closed
3024 		 *	Indicates that waiting area is
3025 		 *	closed and won't allow any new
3026 		 *	waiters.  This occurs during
3027 		 *	the small window where we're
3028 		 *	trying to suspend a channel.
3029 		 * w_cv
3030 		 *	Condvar for waiting on.
3031 		 * w_sp
3032 		 *	Holds slab structure of
3033 		 *	successfully allocated slab.
3034 		 */
3035 		kmutex_t	w_mutex;
3036 		short		w_nwaiters;	/* w_mutex */
3037 		short		w_done;		/* w_mutex */
3038 		short		w_serrno;	/* w_mutex */
3039 		short		w_closed;	/* w_mutex */
3040 		kcondvar_t	w_cv;		/* w_mutex */
3041 		smr_slab_t	*w_sp;		/* w_mutex */
3042 	} *slabwaiter;
3043 			/*
3044 			 * Kmem cache used for allocating
3045 			 * timer structures for outstanding
3046 			 * IDN requests.
3047 			 */
3048 	kmem_cache_t	*timer_cache;
3049 			/*
3050 			 * Effectively constant used in
3051 			 * translating buffer frames in
3052 			 * mailbox message frames to
3053 			 * offsets within SMR.
3054 			 */
3055 	int		bframe_shift;
3056 } idn_global_t;
3057 
3058 typedef struct idn_retry_queue	idn_retry_queue_t;
3059 
3060 #define	IDN_GET_MASTERID()	(idn.masterid)
3061 #define	IDN_SET_MASTERID(mid) \
3062 	{ \
3063 		int	_mid = (mid); \
3064 		mutex_enter(&idn.idnsb_mutex); \
3065 		if (idn.idnsb) { \
3066 			idn.idnsb->id_pmaster_board = \
3067 					idn.idnsb->id_master_board; \
3068 			if (_mid == IDN_NIL_DOMID) \
3069 				idn.idnsb->id_master_board = (uchar_t)0xff; \
3070 			else \
3071 				idn.idnsb->id_master_board = \
3072 				(uchar_t)idn_domain[_mid].dvote.v.board; \
3073 		} \
3074 		mutex_exit(&idn.idnsb_mutex); \
3075 		IDN_HISTORY_LOG(IDNH_MASTERID, _mid, idn.masterid, 0); \
3076 		PR_STATE("%d: MASTERID %d -> %d\n", __LINE__, \
3077 			idn.masterid, _mid); \
3078 		idn.masterid = _mid; \
3079 	}
3080 #define	IDN_GET_NEW_MASTERID()	(idn.new_masterid)
3081 #define	IDN_SET_NEW_MASTERID(mid) \
3082 	{ \
3083 		PR_STATE("%d: NEW MASTERID %d -> %d\n", __LINE__, \
3084 			idn.new_masterid, (mid)); \
3085 		idn.new_masterid = (mid); \
3086 	}
3087 
3088 #define	IDN_GLOCK_EXCL()	(rw_enter(&idn.grwlock, RW_WRITER))
3089 #define	IDN_GLOCK_SHARED()	(rw_enter(&idn.grwlock, RW_READER))
3090 #define	IDN_GLOCK_TRY_SHARED()	(rw_tryenter(&idn.grwlock, RW_READER))
3091 #define	IDN_GLOCK_DOWNGRADE()	(rw_downgrade(&idn.grwlock))
3092 #define	IDN_GUNLOCK()		(rw_exit(&idn.grwlock))
3093 #define	IDN_GLOCK_IS_EXCL()	(RW_WRITE_HELD(&idn.grwlock))
3094 #define	IDN_GLOCK_IS_SHARED()	(RW_READ_HELD(&idn.grwlock))
3095 #define	IDN_GLOCK_IS_HELD()	(RW_LOCK_HELD(&idn.grwlock))
3096 
3097 #define	IDN_SYNC_LOCK()		(mutex_enter(&idn.sync.sz_mutex))
3098 #define	IDN_SYNC_TRYLOCK()	(mutex_tryenter(&idn.sync.sz_mutex))
3099 #define	IDN_SYNC_UNLOCK()	(mutex_exit(&idn.sync.sz_mutex))
3100 #define	IDN_SYNC_IS_LOCKED()	(MUTEX_HELD(&idn.sync.sz_mutex))
3101 
3102 /*
3103  * Macro to reset some globals necessary in preparing
3104  * for initialization of HW for IDN.
3105  */
3106 #define	IDN_PREP_HWINIT() \
3107 	{ \
3108 		ASSERT(IDN_GLOCK_IS_EXCL()); \
3109 		lock_clear(&idn.first_swlink); \
3110 		lock_clear(&idn.first_hwlink); \
3111 		idn.first_hwmasterid = (short)IDN_NIL_DOMID; \
3112 	}
3113 
3114 /*
3115  * Return values of idn_send_data.
3116  */
3117 #define	IDNXMIT_OKAY	0	/* xmit successful */
3118 #define	IDNXMIT_LOOP	1	/* loopback */
3119 #define	IDNXMIT_DROP	2	/* drop packet */
3120 #define	IDNXMIT_RETRY	3	/* retry packet (requeue and qenable) */
3121 #define	IDNXMIT_REQUEUE	4	/* requeue packet, but don't qenable */
3122 
3123 /*
3124  * ---------------------------------------------------------------------
3125  * ss_rwlock must be acquired _before_ any idn_domain locks are
3126  * acquired if both structs need to be accessed.
3127  * idn.struprwlock is acquired when traversing IDN's strup list
3128  * and when adding or deleting entries.
3129  *
3130  * ss_nextp	Linked list of streams.
3131  * ss_rq	Respective read queue.
3132  * ss_sip	Attached device.
3133  * ss_state	Current DL state.
3134  * ss_sap	Bound SAP.
3135  * ss_flags	Misc. flags.
3136  * ss_mccount	# enabled multicast addrs.
3137  * ss_mctab	Table of multicast addrs.
3138  * ss_minor	Minor device number.
3139  * ss_rwlock	Protects ss_linkup fields and DLPI state machine.
3140  * ss_linkup	Boolean flag indicating whether particular (domain) link
3141  *		is up.
3142  * ---------------------------------------------------------------------
3143  */
3144 struct idnstr {				/* gets shoved into q_ptr */
3145 	struct idnstr	*ss_nextp;
3146 	queue_t		*ss_rq;
3147 	struct idn	*ss_sip;
3148 	t_uscalar_t	ss_state;
3149 	t_uscalar_t	ss_sap;
3150 	uint_t		ss_flags;
3151 	uint_t		ss_mccount;
3152 	struct ether_addr	*ss_mctab;
3153 	minor_t		ss_minor;
3154 	krwlock_t	ss_rwlock;
3155 };
3156 
3157 /*
3158  * idnstr.ss_flags - Per-stream flags
3159  */
3160 #define	IDNSFAST	0x01		/* "M_DATA fastpath" mode */
3161 #define	IDNSRAW		0x02		/* M_DATA plain raw mode */
3162 #define	IDNSALLPHYS	0x04		/* "promiscuous mode" */
3163 #define	IDNSALLMULTI	0x08		/* enable all multicast addresses */
3164 #define	IDNSALLSAP	0x10		/* enable all ether type values */
3165 
3166 /*
3167  * Maximum number of multicast address per stream.
3168  */
3169 #define	IDNMAXMC	64
3170 #define	IDNMCALLOC	(IDNMAXMC * sizeof (struct ether_addr))
3171 
3172 /*
3173  * Full DLSAP address length (in struct dladdr format).
3174  */
3175 #define	IDNADDRL	(ETHERADDRL + sizeof (ushort_t))
3176 
3177 struct idndladdr {
3178 	struct ether_addr	dl_phys;
3179 	ushort_t		dl_sap;
3180 };
3181 
3182 #define	IDNHEADROOM		64
3183 #define	IDNROUNDUP(a, n)	(((a) + ((n) - 1)) & ~((n) - 1))
3184 
3185 /*
3186  * Respective interpretation of bytes in 6 byte ethernet address.
3187  */
3188 #define	IDNETHER_ZERO		0
3189 #define	IDNETHER_COOKIE1	1
3190 #define	  IDNETHER_COOKIE1_VAL		0xe5
3191 #define	IDNETHER_COOKIE2	2
3192 #define	  IDNETHER_COOKIE2_VAL		0x82
3193 #define	IDNETHER_NETID		3
3194 #define	IDNETHER_CHANNEL	4
3195 #define	IDNETHER_RESERVED	5
3196 #define	  IDNETHER_RESERVED_VAL		0x64
3197 
3198 /*
3199  * IDN driver supports multliple instances, however they
3200  * still all refer to the same "physical" device.  Multiple
3201  * instances are supported primarily to allow increased
3202  * STREAMs bandwidth since each instance has it's own IP queue.
3203  * This structure is primarily defined to be consistent with
3204  * other network drivers and also to hold the kernel stats.
3205  */
3206 struct idn_kstat {
3207 	ulong_t		si_ipackets;	/* # packets received */
3208 	ulong_t		si_ierrors;	/* # total input errors */
3209 	ulong_t		si_opackets;	/* # packets sent */
3210 	ulong_t		si_oerrors;	/* # total output errors */
3211 
3212 	ulong_t		si_txcoll;	/* # xmit collisions */
3213 	ulong_t		si_rxcoll;	/* # recv collisions */
3214 	ulong_t		si_crc;		/* # recv crc errors */
3215 	ulong_t		si_buff;	/* # recv pkt sz > buf sz */
3216 
3217 	ulong_t		si_nolink;	/* # loss of connection */
3218 	ulong_t		si_linkdown;	/* # link is down */
3219 	ulong_t		si_inits;	/* # driver inits */
3220 	ulong_t		si_nocanput;	/* # canput() failures */
3221 
3222 	ulong_t		si_allocbfail;	/* # allocb() failures */
3223 	ulong_t		si_notbufs;	/* # out of xmit buffers */
3224 	ulong_t		si_reclaim;	/* # reclaim failures */
3225 	ulong_t		si_smraddr;	/* # bad SMR addrs */
3226 
3227 	ulong_t		si_txmax;	/* # xmit over limit */
3228 	ulong_t		si_txfull;	/* # xmit mbox full */
3229 	ulong_t		si_xdcall;	/* # xdcalls sent */
3230 	ulong_t		si_sigsvr;	/* # data server wakeups */
3231 
3232 	ulong_t		si_mboxcrc;	/* # send mbox crc errors */
3233 	/*
3234 	 * MIB II kstat variables
3235 	 */
3236 	ulong_t		si_rcvbytes;	/* # bytes received */
3237 	ulong_t		si_xmtbytes;	/* # bytes transmitted */
3238 	ulong_t		si_multircv;	/* # multicast packets received */
3239 
3240 	ulong_t		si_multixmt;	/* # multicast packets for xmit */
3241 	ulong_t		si_brdcstrcv;	/* # broadcast packets received */
3242 	ulong_t		si_brdcstxmt;	/* # broadcast packets for xmit */
3243 	ulong_t		si_norcvbuf;	/* # rcv packets discarded */
3244 
3245 	ulong_t		si_noxmtbuf;	/* # xmit packets discarded */
3246 	/*
3247 	 * PSARC 1997/198 : 64 bit kstats
3248 	 */
3249 	uint64_t	si_ipackets64;	/* # packets received */
3250 	uint64_t	si_opackets64;	/* # packets transmitted */
3251 	uint64_t	si_rbytes64;	/* # bytes received */
3252 	uint64_t	si_obytes64;	/* # bytes transmitted */
3253 	/*
3254 	 * PSARC 1997/247 : RFC 1643	dot3Stats...
3255 	 */
3256 	ulong_t	si_fcs_errors;		/* FCSErrors */
3257 	ulong_t	si_macxmt_errors;	/* InternalMacTransmitErrors */
3258 	ulong_t	si_toolong_errors;	/* FrameTooLongs */
3259 	ulong_t	si_macrcv_errors;	/* InternalMacReceiveErrors */
3260 };
3261 
3262 /*
3263  * Per logical interface private data structure.
3264  */
3265 struct idn {
3266 	struct idn		*si_nextp;	/* linked instances */
3267 	dev_info_t		*si_dip;	/* assoc. dev_info */
3268 	struct ether_addr	si_ouraddr;	/* enet address */
3269 
3270 	uint_t			si_flags;	/* misc. flags */
3271 	uint_t			si_wantw;	/* xmit: out of res. */
3272 	queue_t			*si_ip4q;	/* ip (v4) read queue */
3273 	queue_t			*si_ip6q;	/* ip (v6) read queue */
3274 
3275 	kstat_t			*si_ksp;	/* kstat pointer */
3276 	struct idn_kstat	si_kstat;	/* per-inst kstat */
3277 };
3278 
3279 struct idn_gkstat {
3280 	ulong_t		gk_reconfigs;		/* # reconfigs */
3281 	ulong_t		gk_reconfig_last;	/* timestamep */
3282 	ulong_t		gk_reaps;		/* # of reap request */
3283 	ulong_t		gk_reap_last;		/* timestamep */
3284 
3285 	ulong_t		gk_links;		/* # of IDN links */
3286 	ulong_t		gk_link_last;		/* timestamep */
3287 	ulong_t		gk_unlinks;		/* # of IDN unlinks */
3288 	ulong_t		gk_unlink_last;		/* timestamep */
3289 
3290 	ulong_t		gk_buffail;		/* # bad bufalloc */
3291 	ulong_t		gk_buffail_last;	/* timestamp */
3292 	ulong_t		gk_slabfail;		/* # bad slaballoc */
3293 	ulong_t		gk_slabfail_last;	/* timestamp */
3294 
3295 	ulong_t		gk_reap_count;		/* # of slabs reaped */
3296 	ulong_t		gk_dropped_intrs;	/* dropped intrs */
3297 };
3298 
3299 extern struct idn_gkstat	sg_kstat;
3300 
3301 #ifdef IDN_NO_KSTAT
3302 
3303 #define	IDN_KSTAT_INC(s, i)
3304 #define	IDN_KSTAT_ADD(s, i, n)
3305 #define	IDN_GKSTAT_INC(i)
3306 #define	IDN_GKSTAT_ADD(vvv, iii)
3307 #define	IDN_GKSTAT_GLOBAL_EVENT(vvv, nnn)
3308 
3309 #else /* IDN_NO_KSTAT */
3310 
3311 #define	IDN_KSTAT_INC(sss, vvv) \
3312 		((((struct idn *)(sss))->si_kstat.vvv)++)
3313 #define	IDN_KSTAT_ADD(sss, vvv, nnn) \
3314 		((((struct idn *)(sss))->si_kstat.vvv) += (nnn))
3315 #define	IDN_GKSTAT_INC(vvv)		((sg_kstat.vvv)++)
3316 #define	IDN_GKSTAT_ADD(vvv, iii)	((sg_kstat.vvv) += (iii))
3317 #define	IDN_GKSTAT_GLOBAL_EVENT(vvv, ttt) \
3318 		((sg_kstat.vvv)++, ((sg_kstat.ttt) = ddi_get_lbolt()))
3319 
3320 #endif /* IDN_NO_KSTAT */
3321 
3322 /*
3323  * idn.si_flags
3324  */
3325 #define	IDNRUNNING		0x01		/* IDNnet is UP */
3326 #define	IDNPROMISC		0x02		/* promiscuous mode enabled */
3327 #define	IDNSUSPENDED		0x04		/* suspended (DR) */
3328 
3329 typedef struct kstat_named	kstate_named_t;
3330 
3331 struct idn_kstat_named {
3332 	kstat_named_t	sk_ipackets;	/* # packets received */
3333 	kstat_named_t	sk_ierrors;	/* # total input errors */
3334 	kstat_named_t	sk_opackets;	/* # packets sent */
3335 	kstat_named_t	sk_oerrors;	/* # total output errors */
3336 
3337 	kstat_named_t	sk_txcoll;	/* # xmit collisions */
3338 	kstat_named_t	sk_rxcoll;	/* # recv collisions */
3339 	kstat_named_t	sk_crc;		/* # recv crc errors */
3340 	kstat_named_t	sk_buff;	/* # recv pkt sz > buf sz */
3341 
3342 	kstat_named_t	sk_nolink;	/* # loss of connection */
3343 	kstat_named_t	sk_linkdown;	/* # link is down */
3344 	kstat_named_t	sk_inits;	/* # driver inits */
3345 	kstat_named_t	sk_nocanput;	/* # canput() failures */
3346 
3347 	kstat_named_t	sk_allocbfail;	/* # allocb() failures */
3348 	kstat_named_t	sk_notbufs;	/* # out of xmit buffers */
3349 	kstat_named_t	sk_reclaim;	/* # reclaim failures */
3350 	kstat_named_t	sk_smraddr;	/* # bad SMR addrs */
3351 
3352 	kstat_named_t	sk_txmax;	/* # xmit over limit */
3353 	kstat_named_t	sk_txfull;	/* # xmit mbox full */
3354 	kstat_named_t	sk_xdcall;	/* # xdcalls sent */
3355 	kstat_named_t	sk_sigsvr;	/* # data server wakeups */
3356 
3357 	kstat_named_t	sk_mboxcrc;	/* # send mbox crc errors */
3358 	/*
3359 	 * MIB II kstat variables
3360 	 */
3361 	kstat_named_t	sk_rcvbytes;	/* # bytes received */
3362 	kstat_named_t	sk_xmtbytes;	/* # bytes transmitted */
3363 	kstat_named_t	sk_multircv;	/* # multicast packets received */
3364 
3365 	kstat_named_t	sk_multixmt;	/* # multicast packets for xmit */
3366 	kstat_named_t	sk_brdcstrcv;	/* # broadcast packets received */
3367 	kstat_named_t	sk_brdcstxmt;	/* # broadcast packets for xmit */
3368 	kstat_named_t	sk_norcvbuf;	/* # rcv packets discarded */
3369 
3370 	kstat_named_t	sk_noxmtbuf;	/* # xmit packets discarded */
3371 	/*
3372 	 * PSARC 1997/198 : 64bit kstats
3373 	 */
3374 	kstat_named_t	sk_ipackets64;	/* # packets received */
3375 	kstat_named_t	sk_opackets64;	/* # packets transmitted */
3376 	kstat_named_t	sk_rbytes64;	/* # bytes received */
3377 	kstat_named_t	sk_obytes64;	/* # bytes transmitted */
3378 	/*
3379 	 * PSARC 1997/247 : RFC 1643	dot3Stats...
3380 	 */
3381 	kstat_named_t	sk_fcs_errors;		/* FCSErr */
3382 	kstat_named_t	sk_macxmt_errors;	/* InternalMacXmtErr */
3383 	kstat_named_t	sk_toolong_errors;	/* FrameTooLongs */
3384 	kstat_named_t	sk_macrcv_errors;	/* InternalMacRcvErr */
3385 };
3386 
3387 /*
3388  * Stats for global events of interest (non-counters).
3389  */
3390 struct idn_gkstat_named {
3391 	kstat_named_t	sk_curtime;		/* current time */
3392 	kstat_named_t	sk_reconfigs;		/* # master recfgs */
3393 	kstat_named_t	sk_reconfig_last;	/* timestamp */
3394 	kstat_named_t	sk_reaps;		/* # of reap req */
3395 	kstat_named_t	sk_reap_last;		/* timestamp */
3396 	kstat_named_t	sk_links;		/* # of links */
3397 	kstat_named_t	sk_link_last;		/* timestamp */
3398 	kstat_named_t	sk_unlinks;		/* # of unlinks */
3399 	kstat_named_t	sk_unlink_last;		/* timestamp */
3400 	kstat_named_t	sk_buffail;		/* # bad buf alloc */
3401 	kstat_named_t	sk_buffail_last;	/* timestamp */
3402 	kstat_named_t	sk_slabfail;		/* # bad buf alloc */
3403 	kstat_named_t	sk_slabfail_last;	/* timestamp */
3404 	kstat_named_t	sk_reap_count;		/* # slabs reaped */
3405 	kstat_named_t	sk_dropped_intrs;	/* intrs dropped */
3406 };
3407 
3408 /*
3409  * ---------------------------------------------------------------------
3410  */
3411 #ifdef DEBUG
3412 #define	IDNXDC(d, mt, a1, a2, a3, a4) \
3413 	((void) debug_idnxdc("idnxdc", (int)(d), (mt), \
3414 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3415 #else /* DEBUG */
3416 #define	IDNXDC(d, mt, a1, a2, a3, a4) \
3417 	(idnxdc((int)(d), (mt), \
3418 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3419 #endif /* DEBUG */
3420 #define	IDNXDC_BROADCAST(ds, mt, a1, a2, a3, a4) \
3421 	(idnxdc_broadcast((domainset_t)(ds), (mt), \
3422 		(uint_t)(a1), (uint_t)(a2), (uint_t)(a3), (uint_t)(a4)))
3423 
3424 /*
3425  * ---------------------------------------------------------------------
3426  */
3427 #define	SET_XARGS(x, a0, a1, a2, a3) \
3428 	((x)[0] = (uint_t)(a0), (x)[1] = (uint_t)(a1), \
3429 	(x)[2] = (uint_t)(a2), (x)[3] = (uint_t)(a3))
3430 
3431 #define	GET_XARGS(x, a0, a1, a2, a3) \
3432 	(((a0) ? *(uint_t *)(a0) = (x)[0] : 1), \
3433 	((a1) ? *(uint_t *)(a1) = (x)[1] : 1), \
3434 	((a2) ? *(uint_t *)(a2) = (x)[2] : 1), \
3435 	((a3) ? *(uint_t *)(a3) = (x)[3] : 1))
3436 
3437 #define	CLR_XARGS(x) \
3438 		((x)[0] = (x)[1] = (x)[2] = (x)[3] = 0)
3439 
3440 #define	GET_XARGS_NEGO_TICKET(x)	((uint_t)(x)[0])
3441 #define	GET_XARGS_NEGO_DSET(x, d) \
3442 		((d)[0] = (x)[1], (d)[1] = (x)[2], (d)[2] = (x)[3])
3443 #define	SET_XARGS_NEGO_TICKET(x, t)	((x)[0] = (uint_t)(t))
3444 #define	SET_XARGS_NEGO_DSET(x, d) \
3445 		((x)[1] = (uint_t)(d)[0], \
3446 		(x)[2] = (uint_t)(d)[1], \
3447 		(x)[3] = (uint_t)(d)[2])
3448 
3449 #define	GET_XARGS_CON_TYPE(x)		((idn_con_t)(x)[0])
3450 #define	GET_XARGS_CON_DOMSET(x)		((domainset_t)(x)[1])
3451 #define	SET_XARGS_CON_TYPE(x, t)	((x)[0] = (uint_t)(t))
3452 #define	SET_XARGS_CON_DOMSET(x, s)	((x)[1] = (uint_t)(s))
3453 
3454 #define	GET_XARGS_FIN_TYPE(x)		GET_FIN_TYPE((x)[0])
3455 #define	GET_XARGS_FIN_ARG(x)		GET_FIN_ARG((x)[0])
3456 #define	GET_XARGS_FIN_DOMSET(x)		((domainset_t)(x)[1])
3457 #define	GET_XARGS_FIN_OPT(x)		((idn_finopt_t)(x)[2])
3458 #define	GET_XARGS_FIN_MASTER(x)		((uint_t)(x)[3])
3459 #define	SET_XARGS_FIN_TYPE(x, t)	SET_FIN_TYPE((x)[0], (t))
3460 #define	SET_XARGS_FIN_ARG(x, a)		SET_FIN_ARG((x)[0], (a))
3461 #define	SET_XARGS_FIN_DOMSET(x, s)	((x)[1] = (uint_t)(s))
3462 #define	SET_XARGS_FIN_OPT(x, o)		((x)[2] = (uint_t)(o))
3463 #define	SET_XARGS_FIN_MASTER(x, m)	((x)[3] = (uint_t)(m))
3464 
3465 #define	GET_XARGS_NACK_TYPE(x)		((idn_nack_t)(x)[0])
3466 #define	GET_XARGS_NACK_ARG1(x)		((x)[1])
3467 #define	GET_XARGS_NACK_ARG2(x)		((x)[2])
3468 #define	SET_XARGS_NACK_TYPE(x, t)	((x)[0] = (uint_t)(t))
3469 #define	SET_XARGS_NACK_ARG1(x, a1)	((x)[1] = (uint_t)(a1))
3470 #define	SET_XARGS_NACK_ARG2(x, a2)	((x)[2] = (uint_t)(a2))
3471 
3472 #define	GET_XARGS_CFG_PHASE(x)		((int)(x)[0])
3473 #define	SET_XARGS_CFG_PHASE(x, p)	((x)[0] = (uint_t)(p))
3474 
3475 /*
3476  * ---------------------------------------------------------------------
3477  */
3478 /*
3479  * Device instance to SIP (IDN instance pointer).
3480  */
3481 #ifdef DEBUG
3482 #define	IDN_INST2SIP(i) \
3483 		(ASSERT(((i) >= 0) && ((i) < (IDN_MAXMAX_NETS << 1))), \
3484 			idn_i2s_table[i])
3485 #else /* DEBUG */
3486 #define	IDN_INST2SIP(i)		(idn_i2s_table[i])
3487 #endif /* DEBUG */
3488 
3489 #define	IDN_SET_INST2SIP(i, s) \
3490 	{ \
3491 		ASSERT(((i) >= 0) && ((i) < (IDN_MAXMAX_NETS << 1))); \
3492 		idn_i2s_table[i] = (s); \
3493 	}
3494 
3495 #define	IDN_NETID2DOMID(n)	(VALID_UDOMAINID(n) ? \
3496 					((int)(n)) : IDN_NIL_DOMID)
3497 #define	IDN_DOMID2NETID(d)	((ushort_t)(d))
3498 
3499 #ifdef DEBUG
3500 #define	IDNDL_ETHER2DOMAIN(eap) \
3501 		(_idndl_ether2domain(eap))
3502 #define	IDNDL_ETHER2SIP(eap) \
3503 		(_idndl_ether2sip(eap))
3504 #else
3505 /*
3506  * The following values can be returned from IDNDL_ETHER2DOMAIN:
3507  *	IDN_NIL_DOMID
3508  *		Ether address is broadcast (0xff) or domain doesn't exist.
3509  *	domid	Domain id with drwlock(reader) held.
3510  */
3511 #define	IDNDL_ETHER2DOMAIN(eap) \
3512 	(IDN_NETID2DOMID((eap)->ether_addr_octet[IDNETHER_NETID]))
3513 #define	IDNDL_ETHER2SIP(eap) \
3514 		(((eap)->ether_addr_octet[IDNETHER_CHANNEL] == 0xff) ? NULL : \
3515 		IDN_INST2SIP((int)(eap)->ether_addr_octet[IDNETHER_CHANNEL]))
3516 #endif /* DEBUG */
3517 
3518 #define	UPPER32_CPUMASK(s)	_upper32cpumask(s)
3519 #define	LOWER32_CPUMASK(s)	_lower32cpumask(s)
3520 #define	MAKE64_CPUMASK(s, u, l)	_make64cpumask(&(s), (u), (l))
3521 
3522 #ifdef DEBUG
3523 extern caddr_t	_idn_getstruct(char *structname, int size);
3524 extern void	_idn_freestruct(caddr_t ptr, char *structname, int size);
3525 
3526 #define	GETSTRUCT(structure, num) \
3527 	((structure *)_idn_getstruct("structure", sizeof (structure)*(num)))
3528 #define	FREESTRUCT(ptr, structure, num) \
3529 	(_idn_freestruct((caddr_t)ptr, "structure", sizeof (structure)*(num)))
3530 #else /* DEBUG */
3531 #define	GETSTRUCT(structure, num) \
3532 	((structure *)kmem_zalloc((uint_t)(sizeof (structure) * (num)), \
3533 				    KM_SLEEP))
3534 #define	FREESTRUCT(ptr, structure, num) \
3535 	(kmem_free((caddr_t)(ptr), sizeof (structure) * (num)))
3536 #endif /* DEBUG */
3537 
3538 extern int		idn_debug;
3539 extern idn_global_t	idn;
3540 extern idn_domain_t	idn_domain[];
3541 extern struct idn	*idn_i2s_table[];
3542 extern int		idn_history;
3543 extern struct idn_history	idnhlog;
3544 
3545 extern int		idn_smr_size;
3546 extern int		idn_nwr_size;
3547 extern int		idn_protocol_nservers;
3548 extern int		idn_awolmsg_interval;
3549 extern int		idn_smr_bufsize;
3550 extern int		idn_slab_bufcount;
3551 extern int		idn_slab_prealloc;
3552 extern int		idn_slab_mintotal;
3553 extern int		idn_window_max;
3554 extern int		idn_window_incr;
3555 extern int		idn_reclaim_min;
3556 extern int		idn_reclaim_max;
3557 extern int		idn_mbox_per_net;
3558 extern int		idn_max_nets;
3559 
3560 extern int		idn_netsvr_spin_count;
3561 extern int		idn_netsvr_wait_min;
3562 extern int		idn_netsvr_wait_max;
3563 extern int		idn_netsvr_wait_shift;
3564 
3565 extern int		idn_checksum;
3566 
3567 extern int		idn_msgwait_nego;
3568 extern int		idn_msgwait_cfg;
3569 extern int		idn_msgwait_con;
3570 extern int		idn_msgwait_fin;
3571 extern int		idn_msgwait_cmd;
3572 extern int		idn_msgwait_data;
3573 
3574 extern int		idn_retryfreq_nego;
3575 extern int		idn_retryfreq_con;
3576 extern int		idn_retryfreq_fin;
3577 
3578 extern int		idn_window_emax;	/* calculated */
3579 extern int		idn_slab_maxperdomain;	/* calculated */
3580 
3581 /*
3582  * ---------------------------------------------------------------------
3583  * io/idn.c
3584  * ---------------------------------------------------------------------
3585  */
3586 extern int	board_to_ready_cpu(int board, cpuset_t cpuset);
3587 extern int	idn_open_domain(int domid, int cpuid, uint_t ticket);
3588 extern void 	idn_close_domain(int domid);
3589 extern void	inum2str(uint_t inum, char str[]);
3590 extern idn_timer_t	*idn_timer_alloc();
3591 extern void	idn_timer_free(idn_timer_t *tp);
3592 extern void	idn_timerq_init(idn_timerq_t *tq);
3593 extern void	idn_timerq_deinit(idn_timerq_t *tq);
3594 extern void	idn_timerq_free(idn_timerq_t *tq);
3595 extern ushort_t	idn_timer_start(idn_timerq_t *tq, idn_timer_t *tp,
3596 				clock_t tval);
3597 extern int	idn_timer_stopall(idn_timer_t *tp);
3598 extern void	idn_timer_dequeue(idn_timerq_t *tq, idn_timer_t *tp);
3599 extern void	idn_timer_stop(idn_timerq_t *tq, int subtype, ushort_t tcookie);
3600 extern idn_timer_t	*idn_timer_get(idn_timerq_t *tq, int subtype,
3601 				ushort_t tcookie);
3602 extern void	idn_domain_resetentry(idn_domain_t *dp);
3603 extern void	idn_strlinks_enable(uint_t netaddr, int domid);
3604 extern void	idn_strlinks_disable(uint_t domset, uint_t netaddr,
3605 				int disconnect);
3606 extern void	idn_dopcache_init();
3607 extern void	idn_dopcache_deinit();
3608 extern void 	*idn_init_op(idn_opflag_t opflag, boardset_t boardset,
3609 				idnsb_error_t *sep);
3610 extern void	idn_add_op(idn_opflag_t opflag, domainset_t domset);
3611 extern void	idn_update_op(idn_opflag_t opflag, domainset_t domset,
3612 				idnsb_error_t *sep);
3613 extern void	idn_deinit_op(void *cookie);
3614 extern int	idn_wait_op(void *cookie, boardset_t *domsetp,
3615 				int wait_timeout);
3616 extern int	idn_wakeup_op(boardset_t boardset, uint_t domset,
3617 				idn_opflag_t opflag, int error);
3618 extern void	idn_error_op(uint_t domset, boardset_t boardset, int error);
3619 extern void	cpuset2str(cpuset_t cset, char buffer[]);
3620 extern void	domainset2str(domainset_t dset, char buffer[]);
3621 extern void	boardset2str(boardset_t bset, char buffer[]);
3622 extern void	mask2str(uint_t mask, char buffer[], int maxnum);
3623 extern int	idnxdc(int domid, idn_msgtype_t *mtp,
3624 				uint_t arg1, uint_t arg2,
3625 				uint_t arg3, uint_t arg4);
3626 extern void	idnxdc_broadcast(domainset_t domset, idn_msgtype_t *mtp,
3627 				uint_t arg1, uint_t arg2,
3628 				uint_t arg3, uint_t arg4);
3629 extern void	idn_awol_event_set(boardset_t boardset);
3630 extern void	idn_awol_event_clear(boardset_t boardset);
3631 #ifdef DEBUG
3632 extern int	debug_idnxdc(char *f, int domid, idn_msgtype_t *mtp,
3633 				uint_t arg1, uint_t arg2,
3634 				uint_t arg3, uint_t arg4);
3635 #endif /* DEBUG */
3636 extern boardset_t	cpuset2boardset(cpuset_t portset);
3637 extern uint_t	_upper32cpumask(cpuset_t cset);
3638 extern uint_t	_lower32cpumask(cpuset_t cset);
3639 extern void	_make64cpumask(cpuset_t *csetp, uint_t upper, uint_t lower);
3640 
3641 /*
3642  * ---------------------------------------------------------------------
3643  * io/idn_proto.c
3644  * ---------------------------------------------------------------------
3645  */
3646 extern void	idn_assign_cookie(int domid);
3647 extern int	idn_rput_data(queue_t *q, mblk_t *mp, int isput);
3648 extern int	idn_wput_data(queue_t *q, mblk_t *mp, int isput);
3649 extern int	idn_send_data(int dst_domid, idn_netaddr_t dst_netaddr,
3650 				queue_t *wq, mblk_t *mp);
3651 extern void 	idn_recv_signal(mblk_t *mp);
3652 extern int 	idn_link(int domid, int cpuid, int pri, int waittime,
3653 				idnsb_error_t *sep);
3654 extern int 	idn_unlink(int domid, boardset_t idnset, idn_fin_t fintype,
3655 				idn_finopt_t finopt, int waittime,
3656 				idnsb_error_t *sep);
3657 extern int	idnh_recv_dataack(int domid, int src_proc,
3658 				uint_t acknack, idn_xdcargs_t xargs);
3659 extern int 	idnh_recv_other(int sourceid, int src_proc, int dst_proc,
3660 				uint_t inum, uint_t acknack,
3661 				idn_xdcargs_t xargs);
3662 extern void 	idn_send_cmd(int domid, idn_cmd_t cmdtype,
3663 				uint_t arg1, uint_t arg2, uint_t arg3);
3664 extern void	idn_send_cmdresp(int domid, idn_msgtype_t *mtp,
3665 				idn_cmd_t cmdtype, uint_t arg1,
3666 				uint_t arg2, uint_t cerrno);
3667 extern void 	idn_broadcast_cmd(idn_cmd_t cmdtype,
3668 				uint_t arg1, uint_t arg2, uint_t arg3);
3669 extern int	idn_reclaim_mboxdata(int domid, int channel, int nbufs);
3670 extern void	idn_clear_awol(int domid);
3671 extern int	idn_protocol_init(int nservers);
3672 extern void	idn_protocol_deinit();
3673 extern void	idn_timer_expired(void *arg);
3674 extern int	idn_open_channel(int channel);
3675 extern void	idn_close_channel(int channel, idn_chanop_t chanop);
3676 extern idn_mainmbox_t	*idn_mainmbox_init(int domid, int mbx);
3677 extern void	idn_mainmbox_deinit(int domid, idn_mainmbox_t *mmp);
3678 extern void	idn_signal_data_server(int domid, ushort_t channel);
3679 extern int	idn_chanservers_init();
3680 extern void	idn_chanservers_deinit();
3681 extern void	idn_chanserver_bind(int net, int cpuid);
3682 extern int	idn_retry_terminate(uint_t token);
3683 extern idn_protojob_t	*idn_protojob_alloc(int kmflag);
3684 extern void	idn_protojob_submit(int cookie, idn_protojob_t *jp);
3685 extern int	idn_domain_is_registered(int domid, int channel,
3686 				idn_chanset_t *chansetp);
3687 extern void	idn_xmit_monitor_kickoff(int chan_wanted);
3688 extern void	idn_sync_exit(int domid, idn_synccmd_t cmd);
3689 /*
3690  * ---------------------------------------------------------------------
3691  * io/idn_xf.c
3692  * ---------------------------------------------------------------------
3693  */
3694 extern void	idnxf_flushall_ecache();
3695 extern int	idnxf_shmem_add(int is_master, boardset_t boardset,
3696 				pfn_t pfnbase, pfn_t pfnlimit,
3697 				uint_t *mcadr);
3698 extern int	idnxf_shmem_sub(int is_master, boardset_t boardset);
3699 extern int	idn_cpu_per_board(void *p2o, cpuset_t cset,
3700 				struct hwconfig *hwp);
3701 /*
3702  * ---------------------------------------------------------------------
3703  * io/idn_dlpi.c
3704  * ---------------------------------------------------------------------
3705  */
3706 extern int	idndl_init(struct idn *sip);
3707 extern void	idndl_uninit(struct idn *sip);
3708 extern void	idndl_statinit(struct idn *sip);
3709 extern void	idndl_dodetach(struct idnstr *);
3710 extern int	idnioc_dlpi(queue_t *wq, mblk_t *mp, int *argsize);
3711 extern void	idndl_localetheraddr(struct idn *sip, struct ether_addr *eap);
3712 extern int	idndl_domain_etheraddr(int domid, int instance,
3713 				struct ether_addr *eap);
3714 extern void	idndl_dlpi_init();
3715 extern int	idndl_start(queue_t *wq, mblk_t *mp, struct idn *sip);
3716 extern void	idndl_read(struct idn *sip, mblk_t *mp);
3717 extern void	idndl_proto(queue_t *wq, mblk_t *mp);
3718 extern void	idndl_sendup(struct idn *, mblk_t *, struct idnstr *(*)());
3719 extern struct idnstr *idndl_accept(struct idnstr *, struct idn *, int,
3720 				struct ether_addr *);
3721 extern struct idnstr *idndl_paccept(struct idnstr *, struct idn *, int,
3722 				struct ether_addr *);
3723 extern void	idndl_wenable(struct idn *);
3724 /*
3725  * ---------------------------------------------------------------------
3726  * io/idn_smr.c
3727  * ---------------------------------------------------------------------
3728  */
3729 extern void	smr_slabwaiter_open(domainset_t domset);
3730 extern void	smr_slabwaiter_close(domainset_t domset);
3731 /*
3732  * ---------------------------------------------------------------------
3733  */
3734 extern void	idn_smrsize_init();
3735 extern void	idn_init_autolink();
3736 extern void	idn_deinit_autolink();
3737 
3738 extern void	idn_dmv_handler(void *arg);
3739 extern void	idnxf_init_mondo(uint64_t dmv_word0,
3740 				uint64_t dmv_word1, uint64_t dmv_word2);
3741 extern int	idnxf_send_mondo(int upaid);
3742 
3743 extern clock_t	idn_msg_waittime[];
3744 extern clock_t	idn_msg_retrytime[];
3745 
3746 #endif /* !_ASM */
3747 #endif /* _KERNEL */
3748 
3749 #ifndef _ASM
3750 /*
3751  * ---------------------------------------------------------------------
3752  */
3753 #define	IDN_NIL_DOMID		-1
3754 #define	IDN_NIL_DCPU		-1
3755 
3756 /*
3757  * ---------------------------------------------------------------------
3758  */
3759 
3760 /*
3761  * IOCTL Interface
3762  *
3763  * Commands must stay in the range (1 - 4096) since only 12 bits
3764  * are allotted.
3765  */
3766 #define	_IDN(n)			(('I' << 20) | ('D' << 12) | (n))
3767 #define	IDNIOC_LINK		_IDN(1)		/* domain_link */
3768 #define	IDNIOC_UNLINK		_IDN(2)		/* domain_unlink */
3769 #define	IDNIOC_unused0		_IDN(3)
3770 #define	IDNIOC_unused1		_IDN(4)
3771 #define	IDNIOC_unused2		_IDN(5)
3772 #define	IDNIOC_unused3		_IDN(6)
3773 #define	IDNIOC_unused4		_IDN(7)
3774 #define	IDNIOC_DLPI_ON		_IDN(8)		/* Turn ON DLPI on str */
3775 #define	IDNIOC_DLPI_OFF		_IDN(9)		/* Turn OFF DLPI on str */
3776 #define	IDNIOC_PING		_IDN(10)	/* For latency testing */
3777 #define	IDNIOC_PING_INIT	_IDN(11)
3778 #define	IDNIOC_PING_DEINIT	_IDN(12)
3779 #define	IDNIOC_MEM_RW		_IDN(13)	/* Random R/W of SMR */
3780 
3781 
3782 #define	VALID_NDOP(op)		(((op) == ND_SET) || ((op) == ND_GET))
3783 
3784 #define	VALID_DLPIOP(op)	(((op) == DLIOCRAW) || \
3785 				((op) == DL_IOC_HDR_INFO))
3786 
3787 #define	VALID_IDNOP(op)		(((op) >= _IDN(1)) && ((op) <= _IDN(13)))
3788 
3789 #define	VALID_IDNIOCTL(op)	(VALID_IDNOP(op) || \
3790 				VALID_NDOP(op) || \
3791 				VALID_DLPIOP(op))
3792 
3793 typedef union idnop {
3794 	struct {
3795 		int		domid;		/* input */
3796 		int		cpuid;		/* input */
3797 		int		master;		/* input */
3798 		int		wait;		/* input */
3799 	} link;
3800 	struct {
3801 		int		domid;		/* input */
3802 		int		cpuid;		/* input */
3803 		int		force;		/* input */
3804 		int		wait;		/* input */
3805 	} unlink;
3806 	struct {
3807 		int		domid;		/* input */
3808 		int		cpuid;		/* input */
3809 	} ping;
3810 	struct {
3811 		uint_t		lo_off;		/* input */
3812 		uint_t		hi_off;		/* input */
3813 		int		blksize;	/* input */
3814 		int		num;		/* input */
3815 		int		rw;		/* input */
3816 		int		goawol;		/* input */
3817 	} rwmem;
3818 } idnop_t;
3819 
3820 #ifdef _KERNEL
3821 /*
3822  * ndd support for IDN tunables.
3823  */
3824 typedef struct idnparam {
3825 	ulong_t	sp_min;
3826 	ulong_t	sp_max;
3827 	ulong_t	sp_val;
3828 	char	*sp_name;
3829 } idnparam_t;
3830 
3831 extern idnparam_t	idn_param_arr[];
3832 
3833 #define	idn_modunloadable		idn_param_arr[0].sp_val
3834 #ifdef IDN_PERF
3835 #define	_LP	0
3836 #define	_xxx_tbd			idn_param_arr[_LP+1].sp_val
3837 #endif /* IDN_PERF */
3838 
3839 /*
3840  * =====================================================================
3841  */
3842 
3843 /*
3844  * Some junk to pretty print board lists and cpu lists in
3845  * log/console messages.  Length is big enough to display 64 double
3846  * digit cpus separated by a command and single space.  (Board list
3847  * is similar, but only 16 entries possible.
3848  */
3849 #define	_DSTRLEN		400
3850 #define	ALLOC_DISPSTRING()	((char *)kmem_alloc(_DSTRLEN, KM_NOSLEEP))
3851 #define	FREE_DISPSTRING(b)	(kmem_free((void *)(b), _DSTRLEN))
3852 
3853 /*
3854  * These are declared in idn.c.
3855  */
3856 extern const char	*idnds_str[];
3857 extern const char	*idnxs_str[];
3858 extern const char	*idngs_str[];
3859 extern const char	*idncmd_str[];
3860 extern const char	*idncon_str[];
3861 extern const char	*idnfin_str[];
3862 extern const char	*idnfinarg_str[];
3863 extern const char	*idnfinopt_str[];
3864 extern const char	*idnreg_str[];
3865 extern const char	*idnnack_str[];
3866 extern const char	*idnop_str[];
3867 extern const char	*idnsync_str[];
3868 extern const char	*chanop_str[];
3869 extern const char	*chanaction_str[];
3870 extern const char	*inum_str[];
3871 extern const int	inum_bump;
3872 extern const int	inum_max;
3873 extern const int	acknack_shift;
3874 
3875 extern const char	*timer_str[];
3876 extern const char	*res_str[];
3877 
3878 #endif /* _KERNEL */
3879 #endif /* !_ASM */
3880 
3881 #ifdef	__cplusplus
3882 }
3883 #endif
3884 
3885 #endif /* _SYS_IDN_H */
3886