libteac.c@ 32394

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1	#include <stdio.h>
2	#include <stdlib.h>
3	#include <sys/fcntl.h>
4	#include <string.h>
5	#include <time.h>
6
7	#include "teac.h"
8
9	/* Notes-
10	* -Why is elan3_fini dropping core? It's intermittent, and seems to
11	* depend on relative timing of multiple calls.
12	*/
13
14	#ifdef CHROMIUM
15	#include <cr_string.h>
16	#include <cr_mem.h>
17	#include <cr_error.h>
18	#else
19	#define crAlloc(sz) malloc(sz)
20	#define crStrncpy(out,in,sz) strncpy(out,in,sz)
21	#define crMemcpy(out,in,bytes) memcpy(out,in,bytes)
22	#define crStrchr(instr,inchr) strchr(instr,inchr)
23	#define crFree(ptr) free(ptr)
24	#define crRealloc( pp, size ) { \
25	if (!(pp=realloc(pp,size))) { \
26	fprintf(stderr,"failed to reallocate %d bytes!\n",size); \
27	abort(); \
28	} \
29	}
30	#include <stdarg.h>
31	static void crDebug( const char* fmt, ... ) {
32	va_list ap;
33	va_start(ap,fmt);
34	vfprintf(stderr, fmt, ap);
35	va_end(ap);
36	}
37	#endif
38
39	#define EADDR_ALLOC_ELAN 0x200000
40	#define ALLOC_ELAN_SIZE 0x200000
41	#define EADDR_ALLOC_MAIN 0x400000
42	#define ALLOC_MAIN_SIZE 0x2000000
43
44	/* We need some defs to handle changes in structures between software
45	* revisions.
46	*/
47	/* Capability shape is the same between KITE and pre-KITE */
48	#ifdef ELAN_PRE_KITE
49
50	/* software level is PRE_KITE */
51	#define TEAC_DEVINFO_TYPE 0
52	#define TEAC_CAP_TYPE 0
53
54	#else
55	#ifdef ELAN_PRE_EAGLE
56
57	/* software level is KITE */
58
59	#ifdef LINUX
60	#define TEAC_DEVINFO_TYPE 1
61	#define TEAC_CREATE_TYPE 1
62	#else
63	#define TEAC_DEVINFO_TYPE 0
64	#define TEAC_CREATE_TYPE 0
65	#endif
66	#define TEAC_CAP_TYPE 1
67
68	#else
69	/* software level is EAGLE */
70	#define TEAC_DEVINFO_TYPE 2
71	#define TEAC_CAP_TYPE 2
72	#define TEAC_CREATE_TYPE 2
73
74	#endif
75	#endif
76
77	#if (TEAC_CAP_TYPE == 2)
78	#define TEAC_CAP_ENTRIES(cap) ELAN_CAP_ENTRIES(cap)
79	#else
80	#define TEAC_CAP_ENTRIES(cap) (cap->Entries)
81	#endif
82
83	/* In the future we will use the bitwise AND of the rail masks */
84	#define RAIL 0
85
86	#ifndef HOST_TABLE_FILENAME
87	#define HOST_TABLE_FILENAME "/usr/users/8/welling/elanstuff/teac/teac_host_map.t"
88	#endif
89
90	#define INITIAL_HOST_TABLE_SIZE 256
91
92	static host_t* hosts= NULL; /* this one ends up sorted by host name */
93	static int* hostsIndex= NULL; /* this is sorted by node ID */
94	static sdramaddr_t* sdramAddrBase= NULL;
95	static E3_Addr* elanAddrBase= NULL;
96
97	static int nodeTablesInitialized= 0;
98	static int nodeTableSize= 0;
99	static int nodeCount= 0;
100
101	static int read_node_map()
102	{
103	FILE* f= NULL;
104	int i;
105	int iLine;
106	char buf[256];
107
108	if (hosts) crFree(hosts);
109	if (!(hosts= (host_t)crAlloc(INITIAL_HOST_TABLE_SIZEsizeof(host_t)))) {
110	fprintf(stderr,"libteac: read_node_map: unable to allocate %d bytes!\n",
111	INITIAL_HOST_TABLE_SIZE*sizeof(host_t));
112	abort();
113	}
114	nodeTableSize= INITIAL_HOST_TABLE_SIZE;
115
116	if (!(f=fopen(HOST_TABLE_FILENAME,"r"))) {
117	fprintf(stderr,"libteac: read_node_map: cannot open <%s> for reading!\n",
118	HOST_TABLE_FILENAME);
119	abort();
120	}
121
122	i= 0;
123	iLine= 0;
124	buf[sizeof(buf)-1]= '\0';
125	while (!feof(f) && !ferror(f)) {
126	char* tmp;
127	char* string;
128	if (!fgets(buf, sizeof(buf)-1, f)) break;
129	iLine++;
130	if (buf[0]=='#' \|\| buf[0]=='\n' \|\| buf[0]=='\0') continue;
131	if (i>=nodeTableSize) {
132	/* We need to grow the table */
133	int newSize= 2*nodeTableSize;
134	crRealloc((void*)&hosts,newSizesizeof(host_t));
135	nodeTableSize= newSize;
136	}
137	if (!(string=strtok_r(buf," ,;\t\n",&tmp))) {
138	fprintf(stderr,"libteac: read_node_map: Bad machine name at line %d of %s!\n",
139	iLine, HOST_TABLE_FILENAME);
140	abort();
141	}
142	if (strlen(string)==0) continue; /* blank line */
143	hosts[i].name= strdup(string);
144
145	if (!(string=strtok_r(NULL," ,;\t\n",&tmp))) {
146	fprintf(stderr,"libteac: read_node_map: bad integer string at line %d of %s!\n",
147	iLine, HOST_TABLE_FILENAME);
148	abort();
149	}
150	errno= 0;
151	hosts[i].railMask= atoi(string);
152	if (errno != 0) {
153	fprintf(stderr,"libteac: read_node_map: bad integer %s at %s line %d!\n",
154	string, HOST_TABLE_FILENAME, iLine);
155	abort();
156	}
157
158	if (!(string=strtok_r(NULL," ,;\t\n",&tmp))) {
159	fprintf(stderr,"libteac: read_node_map: bad integer string at line %d of %s!\n",
160	iLine, HOST_TABLE_FILENAME);
161	abort();
162	}
163	errno= 0;
164	hosts[i].id= atoi(string);
165	if (errno != 0) {
166	fprintf(stderr,"libteac: read_node_map: bad integer %s at %s line %d!\n",
167	string, HOST_TABLE_FILENAME, iLine);
168	abort();
169	}
170
171	if (!(string=strtok_r(NULL," ,;\t\n",&tmp))) {
172	fprintf(stderr,"libteac: read_node_map: bad hex value at line %d of %s!\n",
173	iLine, HOST_TABLE_FILENAME);
174	abort();
175	}
176	errno= 0;
177	hosts[i].sdramAddrBase= (sdramaddr_t)strtol(string, (char**)NULL, 0);
178	if (errno != 0) {
179	fprintf(stderr,"libteac: read_node_map: bad hex address %s at %s line %d!\n",
180	string, HOST_TABLE_FILENAME, iLine);
181	abort();
182	}
183
184	if (!(string=strtok_r(NULL," ,;\t\n",&tmp))) {
185	fprintf(stderr,"libteac: read_node_map: bad hex value at line %d of %s!\n",
186	iLine, HOST_TABLE_FILENAME);
187	abort();
188	}
189	errno= 0;
190	hosts[i].elanAddrBase= (E3_Addr)strtol(string, (char**)NULL, 0);
191	if (errno != 0) {
192	fprintf(stderr,"libteac: read_node_map: bad hex address %s at %s line %d!\n",
193	string, HOST_TABLE_FILENAME, iLine);
194	abort();
195	}
196
197	#if 0
198	crDebug("line %d: %d: got <%s> %d %d 0x%x 0x%x\n",
199	iLine, i, hosts[i].name, hosts[i].railMask, hosts[i].id,
200	hosts[i].sdramAddrBase, hosts[i].elanAddrBase);
201	#endif
202
203	i++;
204	}
205	if (ferror(f)) {
206	perror("Error reading host table");
207	fprintf(stderr,"libteac: read_node_map: error reading <%s>!\n",
208	HOST_TABLE_FILENAME);
209	abort();
210	}
211
212	(void)fclose(f);
213	return i;
214	}
215
216	static int hostnameCompare(const void* h1, const void* h2)
217	{
218	return strcmp(((host_t)h1)->name, ((host_t)h2)->name);
219	}
220
221	static int hostnameLookup(const void* h1, const void* h2)
222	{
223	return strcmp((const char)h1, ((host_t)h2)->name);
224	}
225
226	static void initialize_node_tables()
227	{
228	if (!nodeTablesInitialized) {
229	int nodeMin;
230	int nodeMax;
231	int nodeRange;
232	int i;
233
234	crDebug("Loading Quadrics network map from <%s>\n",HOST_TABLE_FILENAME);
235
236	/* Load information about Quadrics network */
237	nodeCount= read_node_map();
238	if (nodeCount==0) {
239	fprintf(stderr,
240	"libteac: initialize_node_tables: no valid nodes in %s!\n",
241	HOST_TABLE_FILENAME);
242	abort();
243	}
244
245	/*
246	* Build the offset tables. Offsets are looked up by node ID, so we
247	* have to avoid redundant IDs and order the tables correctly.
248	*/
249	nodeMin= nodeMax= hosts[0].id;
250	for (i=1; i<nodeCount; i++) {
251	if (hosts[i].id<nodeMin) nodeMin= hosts[i].id;
252	if (hosts[i].id>nodeMax) nodeMax= hosts[i].id;
253	}
254	nodeRange= (nodeMax-nodeMin) + 1;
255	if (!(sdramAddrBase=(sdramaddr_t)crAlloc(nodeRangesizeof(sdramaddr_t)))) {
256	fprintf(stderr,
257	"libteac: initialize_node_tables: unable to allocate %d bytes!\n",
258	nodeRange*sizeof(sdramaddr_t));
259	abort();
260	}
261	if (!(elanAddrBase=(E3_Addr)crAlloc(nodeRangesizeof(E3_Addr)))) {
262	fprintf(stderr,
263	"libteac: initialize_node_tables: unable to allocate %d bytes!\n",
264	nodeRange*sizeof(E3_Addr));
265	abort();
266	}
267	for (i=0; i<nodeRange; i++) {
268	sdramAddrBase[i]= (sdramaddr_t)0;
269	elanAddrBase[i]= (E3_Addr)0;
270	}
271	for (i=0; i<nodeCount; i++) {
272	sdramAddrBase[hosts[i].id]= hosts[i].sdramAddrBase;
273	elanAddrBase[hosts[i].id]= hosts[i].elanAddrBase;
274	}
275
276	/* Sort the host table alphabetically by host name for faster lookup */
277	qsort( hosts, nodeCount, sizeof(host_t), hostnameCompare );
278
279	/* Build an ordered index into the hosts table */
280	if (hostsIndex) crFree(hostsIndex);
281	if (!(hostsIndex= (int)crAlloc(nodeRangesizeof(int)))) {
282	fprintf(stderr,"libteac: read_node_map: unable to allocate %d bytes!\n",
283	nodeCount*sizeof(int));
284	abort();
285	}
286	for (i=0; i<nodeRange; i++) hostsIndex[i]= 0;
287	for (i=0; i<nodeCount; i++) hostsIndex[hosts[i].id]= i;
288
289	nodeTablesInitialized= 1;
290	}
291	}
292
293	static int trans_host(const char *hn) {
294	host_t* h= NULL;
295
296	if (!nodeTablesInitialized) initialize_node_tables();
297
298	#if 0
299	char buf[128];
300	int i;
301	i= 0;
302	while (i<sizeof(buf)-1 && hn[i] && hn[i]!='.') { buf[i]= hn[i]; i++; };
303	buf[i]= '\0';
304	#endif
305
306	h=(host_t*)bsearch(hn, hosts, nodeCount, sizeof(host_t), hostnameLookup);
307	#if 0
308	if (h) {
309	crDebug("Lookup <%s> got <%s> <%d> <%x> <%x>\n",
310	hn,h->name,h->id,(int)h->sdramAddrBase,(int)h->elanAddrBase);
311	}
312	else fprintf(stderr,"Lookup <%s> returned NULL!\n",hn);
313	#endif
314	if (h) return h->id;
315	else return -1;
316	}
317
318	/*
319	* A version of address translation with some safety checks
320	*/
321	static E3_Addr teac_main2elan( ELAN3_CTX ctx, void main_addr )
322	{
323	E3_Addr result= elan3_main2elan(ctx,main_addr);
324	/*
325	crDebug("mapping %0lx -> %d; addressable %d\n",
326	main_addr,result,elan3_addressable(ctx,main_addr,64));
327	*/
328	if (result==ELAN_BAD_ADDR) {
329	fprintf(stderr,"Address translation error: %0x has no elan equivalent\n",
330	(int)main_addr);
331	abort();
332	}
333	return result;
334	}
335
336	Tcomm teac_Init(char lh, char *hh, int lctx, int hctx, int myrank,
337	const unsigned char key[TEAC_KEY_SIZE])
338	{
339	#if (TEAC_DEVINFO_TYPE == 2)
340	ELAN_DEVINFO info;
341	ELAN_POSITION position;
342	#else
343	ELAN3_DEVINFO info;
344	#endif
345	ELAN_CAPABILITY *cap;
346	Tcomm* result= NULL;
347	int i;
348	int j;
349	int a;
350	int b;
351	char buf[256];
352	char* here;
353	#if ( TEAC_CREATE_TYPE == 0 )
354	void* control;
355	#endif
356
357	if (!nodeTablesInitialized) initialize_node_tables();
358
359	if (!(result= (Tcomm*)crAlloc(sizeof(Tcomm)))) {
360	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
361	sizeof(Tcomm));
362	return(NULL);
363	}
364	result->ctx = NULL;
365	result->dma = NULL;
366	result->e_dma = 0;
367	result->s_event = 0;
368	result->r_event = NULL;
369	for (i=0; i<NUM_SEND_BUFFERS; i++) result->sbuf_pull_event[i] = 0;
370	result->rbuf_pull_event = 0;
371	result->m_snd = NULL;
372	result->m_rcv = NULL;
373	for (i=0; i<NUM_SEND_BUFFERS; i++) result->sbuf_ready[i]= NULL;
374	result->rbuf_ready = NULL;
375	result->mbuff= NULL;
376	for (i=0; i<NUM_SEND_BUFFERS; i++) result->sendWrappers[i]= NULL;
377	result->vp = -1;
378	result->hhost = result->lhost = -1;
379	result->hctx = result->lctx = -1;
380	result->msgnum = 0;
381	result->poll_shift = 0;
382	result->totalSendBufferBytesAllocated= 0;
383	result->totalRecvBufferBytesAllocated= 0;
384
385	a = trans_host(lh);
386	b = trans_host(hh);
387	result->lhost = (a < b)? a : b;
388	result->hhost = (a > b) ? a : b;
389
390	result->lctx = (lctx<hctx) ? lctx : hctx;
391	result->hctx = (hctx>lctx) ? hctx : lctx;
392
393	cap = &(result->cap);
394	#if (TEAC_CAP_TYPE == 2)
395	elan_nullcap(cap);
396	/* Initialize the UserKey to the given value */
397	crMemcpy((void*)&(cap->cap_userkey.key_values),key,TEAC_KEY_SIZE);
398	cap->cap_lowcontext = lctx;
399	cap->cap_mycontext = lctx + (myrank%4);
400	cap->cap_highcontext = hctx;
401	cap->cap_lownode = result->lhost;
402	cap->cap_highnode = result->hhost;
403	cap->cap_type =
404	ELAN_CAP_TYPE_BLOCK \| ELAN_CAP_TYPE_NO_BITMAP \| ELAN_CAP_TYPE_MULTI_RAIL;
405	#else
406	elan3_nullcap(cap);
407	/* Initialize the UserKey to the given value */
408	crMemcpy((void*)&(cap->UserKey),key,TEAC_KEY_SIZE);
409	cap->LowContext = lctx;
410	cap->MyContext = lctx + (myrank%4);
411	cap->HighContext = hctx;
412	cap->LowNode = result->lhost;
413	cap->HighNode = result->hhost;
414	cap->Entries = (hctx - lctx + 1) * (cap->HighNode - cap->LowNode + 1);
415	cap->Type =
416	ELAN_CAP_TYPE_BLOCK \| ELAN_CAP_TYPE_NO_BITMAP \| ELAN_CAP_TYPE_MULTI_RAIL;
417	#endif
418
419	if ((result->ctx = elan3_init( 0, EADDR_ALLOC_MAIN, ALLOC_MAIN_SIZE,
420	EADDR_ALLOC_ELAN, ALLOC_ELAN_SIZE))
421	== NULL) {
422	fprintf(stderr, "teac_Init: elan3_init returned NULL context\n");
423	return(NULL);
424	}
425	elan3_block_inputter (result->ctx, 1);
426
427	#if ( TEAC_CREATE_TYPE == 0 )
428	if ((control = elan3_control_open (RAIL)) != NULL) {
429	if (elan3_create(control, &(result->cap))) {
430	crDebug("elan3_create failed with <%s>, but that's OK!\n",
431	strerror(errno));
432	errno= 0;
433	}
434	}
435	else {
436	perror("elan3_control_open failed");
437	teac_Close(result);
438	return NULL;
439	}
440	#elif ( TEAC_CREATE_TYPE == 1 )
441	if (elan3_create(result->ctx, &(result->cap))) {
442	crDebug("elan3_create failed with <%s>, but that's OK!\n",
443	strerror(errno));
444	errno= 0;
445	}
446	#else
447	/* I don't think we have to do anything here! */
448	#endif
449
450	#if (TEAC_DEVINFO_TYPE == 2)
451	(void)elan3_get_devinfo(result->ctx, &info);
452	(void)elan3_get_position(result->ctx, &position);
453	crDebug("Position mode %d, NodeID %d, NumNodes %d, NumLevels %d\n",
454	position.pos_mode,position.pos_nodeid, position.pos_nodes,
455	position.pos_levels);
456	if (position.pos_mode != ELAN_POS_MODE_SWITCHED)
457	crDebug("WARNING: position mode is not %d!\n",ELAN_POS_MODE_SWITCHED);
458	crDebug("Rail %d\n",info.dev_rail);
459	#elif (TEAC_DEVINFO_TYPE == 1)
460	elan3_devinfo(0, &info);
461	crDebug("NodeId: %d, NumNodes: %d, NumLevels: %d, NodeLevel: %d\n",
462	info.Position.NodeId, info.Position.NumNodes,
463	info.Position.NumLevels, info.Position.NodeLevel);
464	#else
465	elan3_devinfo(0, &info);
466	crDebug("NodeId: %d, NumLevels: %d, NodeLevel: %d\n",
467	info.NodeId, info.NumLevels, info.NodeLevel);
468	#endif
469
470	#if 0
471	{
472	static char junkString[256];
473	#if (TEAC_CAP_TYPE == 2)
474	crDebug("Capability: <%s>\n",
475	elan_capability_string(&(result->cap),junkString));
476	crDebug("railmask is %d\n",result->cap.cap_railmask);
477	crDebug("bitmap is %x\n",result->cap.cap_bitmap[0]);
478	#else
479	crDebug("Capability: <%s>\n",
480	elan3_capability_string(&(result->cap),junkString));
481	crDebug("railmask is %d\n",result->cap.RailMask);
482	crDebug("bitmap is %x\n",result->cap.Bitmap[0]);
483	#endif
484	}
485	#endif
486
487	/* Reality check. */
488	if (gethostname(buf,sizeof(buf)-1)) {
489	perror("Can't get my own host name");
490	teac_Close(result);
491	return NULL;
492	}
493	if ((here= crStrchr(buf,'.')) != NULL) *here= '\0';
494
495	#if (TEAC_DEVINFO_TYPE == 2)
496	if (trans_host(buf) != (int)position.pos_nodeid) {
497	fprintf(stderr,
498	"teac_Init: Expected Quadrics port id %d does not match real value %d!\n",
499	trans_host(buf), position.pos_nodeid);
500	teac_Close(result);
501	return NULL;
502	}
503	#elif (TEAC_DEVINFO_TYPE == 1)
504	if (trans_host(buf) != info.Position.NodeId) {
505	fprintf(stderr,
506	"teac_Init: Expected Quadrics port id %d does not match real value %d!\n",
507	trans_host(buf), info.Position.NodeId);
508	teac_Close(result);
509	return NULL;
510	}
511	#else
512	if (trans_host(buf) != info.NodeId) {
513	fprintf(stderr,
514	"teac_Init: Expected Quadrics port id %d does not match real value %d!\n",
515	trans_host(buf), info.NodeId);
516	teac_Close(result);
517	return NULL;
518	}
519	#endif
520
521	if (elan3_attach(result->ctx, &(result->cap))) {
522	fprintf(stderr, "teac_Init: elan3_attach failed\n");
523	teac_Close(result);
524	return(NULL);
525	}
526
527	if (elan3_addvp(result->ctx, 0, &(result->cap))) {
528	fprintf(stderr, "teac_Init: elan3_addvp failed\n");
529	teac_Close(result);
530	return(NULL);
531	}
532
533	result->vp = elan3_process(result->ctx);
534
535	if (! elan3_set_required_mappings (result->ctx)) {
536	fprintf(stderr, "teac_Init: elan3_set_required_mappings failed\n");
537	teac_Close(result);
538	return(NULL);
539	}
540
541	if (!(result->r_event=
542	(sdramaddr_t*)crAlloc( TEAC_CAP_ENTRIES(cap)sizeof(sdramaddr_t*) ))) {
543	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
544	TEAC_CAP_ENTRIES(cap)sizeof(sdramaddr_t));
545	teac_Close(result);
546	return(NULL);
547	}
548	if (!(result->r_event[0]=
549	(sdramaddr_t)crAlloc( TEAC_CAP_ENTRIES(cap)NUM_SEND_BUFFERS
550	* sizeof(sdramaddr_t) ))) {
551	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
552	TEAC_CAP_ENTRIES(cap)NUM_SEND_BUFFERSsizeof(sdramaddr_t));
553	teac_Close(result);
554	return(NULL);
555	}
556	if (!(result->r_event[0][0]=
557	elan3_allocElan(result->ctx, E3_EVENT_ALIGN,
558	TEAC_CAP_ENTRIES(cap)NUM_SEND_BUFFERSsizeof(E3_BlockCopyEvent)))) {
559	perror("teac_Init: elan3_allocElan failed for r_event block");
560	teac_Close(result);
561	return(NULL);
562	}
563	for (j=1; j<TEAC_CAP_ENTRIES(cap); j++) {
564	result->r_event[j]= result->r_event[0] + j*NUM_SEND_BUFFERS;
565	result->r_event[j][0]=
566	result->r_event[0][0]+jNUM_SEND_BUFFERSsizeof(E3_BlockCopyEvent);
567	}
568	for (j=0; j<TEAC_CAP_ENTRIES(cap); j++)
569	for (i=1; i<NUM_SEND_BUFFERS; i++) {
570	result->r_event[j][i]=
571	result->r_event[j][0] + i*sizeof(E3_BlockCopyEvent);
572	}
573	#if 0
574	crDebug("r_event[0][0] is %x\n",(int)result->r_event[0][0]);
575	#endif
576
577	if (!(result->m_rcv=
578	(volatile E3_uint32*)crAlloc( TEAC_CAP_ENTRIES(cap)sizeof(E3_uint32*) ))) {
579	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
580	TEAC_CAP_ENTRIES(cap)sizeof(E3_uint32));
581	teac_Close(result);
582	return(NULL);
583	}
584	if (!(result->m_rcv[0]= (volatile E3_uint32*)
585	elan3_allocMain(result->ctx, 0,
586	TEAC_CAP_ENTRIES(cap)NUM_SEND_BUFFERSsizeof(E3_uint32)))) {
587	perror("teac_Init: elan3_allocMain failed for m_rcv block");
588	teac_Close(result);
589	return(NULL);
590	}
591	for (i=1; i<TEAC_CAP_ENTRIES(cap); i++)
592	result->m_rcv[i]= result->m_rcv[0] + i*NUM_SEND_BUFFERS;
593	#if 0
594	crDebug("Base of m_rcv is %lx -> %lx\n",
595	(long)(result->m_rcv[0]),
596	(long)teac_main2elan(result->ctx,(void*)(result->m_rcv[0])));
597	#endif
598
599	if (!(result->mbuff= (teacMsg*)crAlloc( TEAC_CAP_ENTRIES(cap)sizeof(teacMsg*) ))) {
600	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
601	TEAC_CAP_ENTRIES(cap)sizeof(teacMsg));
602	teac_Close(result);
603	return(NULL);
604	}
605	if (!(result->mbuff[0]= (teacMsg*)
606	elan3_allocMain(result->ctx, 8,
607	TEAC_CAP_ENTRIES(cap)NUM_SEND_BUFFERSsizeof(teacMsg)))) {
608	perror("teac_Init: elan3_allocMain failed for mbuff block");
609	teac_Close(result);
610	return(NULL);
611	}
612	for (i=1; i<TEAC_CAP_ENTRIES(cap); i++)
613	result->mbuff[i]= result->mbuff[0] + i*NUM_SEND_BUFFERS;
614	#if 0
615	crDebug("Base of mbuff is %lx -> %lx\n",
616	(long)(result->mbuff[0]),
617	(long)teac_main2elan(result->ctx,result->mbuff[0]));
618	#endif
619
620	if (!(result->dma= (E3_DMA_MAIN *)
621	elan3_allocMain(result->ctx,
622	E3_DMA_ALIGN, sizeof(E3_DMA_MAIN)))) {
623	perror("teac_Init: elan3_allocMain failed for dma");
624	teac_Close(result);
625	return(NULL);
626	}
627
628	if (!(result->e_dma=
629	elan3_allocElan(result->ctx, E3_DMA_ALIGN, sizeof(E3_DMA)))) {
630	perror("teac_Init: elan3_allocElan failed for e_dma");
631	teac_Close(result);
632	return(NULL);
633	}
634
635	if (!(result->s_event=
636	elan3_allocElan(result->ctx, E3_EVENT_ALIGN,
637	sizeof(E3_BlockCopyEvent)))) {
638	perror("teac_Init: elan3_allocElan failed for s_event");
639	teac_Close(result);
640	return(NULL);
641	}
642	#if 0
643	crDebug("s_event is %x\n",(int)result->s_event);
644	#endif
645
646	if (!(result->sbuf_pull_event[0]=
647	elan3_allocElan(result->ctx, E3_EVENT_ALIGN,
648	NUM_SEND_BUFFERS*sizeof(E3_BlockCopyEvent)))) {
649	perror("teac_Init: elan3_allocElan failed for sbuf_pull_event block");
650	teac_Close(result);
651	return(NULL);
652	}
653	for (i=1; i<NUM_SEND_BUFFERS; i++)
654	result->sbuf_pull_event[i]=
655	result->sbuf_pull_event[0]+i*sizeof(E3_BlockCopyEvent);
656
657	if (!(result->rbuf_pull_event=
658	elan3_allocElan(result->ctx, E3_EVENT_ALIGN,
659	sizeof(E3_BlockCopyEvent)))) {
660	perror("teac_Init: elan3_allocElan failed for rbuf_pull_event");
661	teac_Close(result);
662	return(NULL);
663	}
664
665	if (!(result->m_snd= (E3_uint32 *)
666	elan3_allocMain(result->ctx, 0,
667	sizeof(E3_uint32)))) {
668	perror("teac_Init: elan3_allocMain failed for m_snd");
669	teac_Close(result);
670	return(NULL);
671	}
672
673	if (!(result->sbuf_ready[0]= (E3_uint32 *)
674	elan3_allocMain(result->ctx, 0,
675	NUM_SEND_BUFFERS*sizeof(E3_uint32)))) {
676	perror("teac_Init: elan3_allocMain failed for sbuf_ready block");
677	teac_Close(result);
678	return(NULL);
679	}
680	for (i=1; i<NUM_SEND_BUFFERS; i++)
681	result->sbuf_ready[i]= result->sbuf_ready[0] + i;
682
683	if (!(result->sendWrappers[0]=
684	(SBuffer)crAlloc(NUM_SEND_BUFFERSsizeof(SBuffer)))) {
685	fprintf(stderr,"teac_Init: unable to allocate %d bytes!\n",
686	NUM_SEND_BUFFERS*sizeof(SBuffer));
687	teac_Close(result);
688	return(NULL);
689	}
690	for (i=1; i<NUM_SEND_BUFFERS; i++)
691	result->sendWrappers[i]= result->sendWrappers[0] + i;
692
693	if (!(result->rbuf_ready= (E3_uint32 *)
694	elan3_allocMain(result->ctx, 0,
695	sizeof(E3_uint32)))) {
696	perror("teac_Init: elan3_allocMain failed for rbuf_ready");
697	teac_Close(result);
698	return(NULL);
699	}
700
701	for (i=0; i<NUM_SEND_BUFFERS; i++) {
702	char* buf;
703	if (!(buf= (char*)elan3_allocMain(result->ctx, 8,
704	E_BUFFER_INITIAL_SIZE))) {
705	perror("teac_Init: elan3_allocMain failed for buffer block");
706	teac_Close(result);
707	return(NULL);
708	}
709	result->sendWrappers[i]->bufId= i;
710	result->sendWrappers[i]->totSize= E_BUFFER_INITIAL_SIZE;
711	result->sendWrappers[i]->validSize= 0;
712	result->sendWrappers[i]->buf= buf;
713	result->totalSendBufferBytesAllocated += result->sendWrappers[i]->totSize;
714	}
715
716	elan3_initevent_word (result->ctx,
717	result->s_event, result->m_snd);
718	elan3_initevent_word (result->ctx,
719	result->rbuf_pull_event, result->rbuf_ready);
720
721	for (i=0; i<NUM_SEND_BUFFERS; i++) {
722	elan3_initevent_word (result->ctx,
723	result->sbuf_pull_event[i], result->sbuf_ready[i]);
724	}
725
726	for (j=0; j<TEAC_CAP_ENTRIES(cap); j++)
727	for (i=0; i<NUM_SEND_BUFFERS; i++) {
728	elan3_initevent_word (result->ctx,
729	result->r_event[j][i], &(result->m_rcv[j][i]));
730	}
731
732	/* Get the message receive events ready to fire, in case something
733	* comes in before receive gets called.
734	*/
735	for (j=0; j<TEAC_CAP_ENTRIES(cap); j++)
736	for (i=0; i<NUM_SEND_BUFFERS; i++) {
737	elan3_primeevent(result->ctx, result->r_event[j][i], 1);
738	}
739
740	/* Fire the sbuffer free events, so that the buffers look free when
741	* the first call to send happens.
742	*/
743	for (i=0; i<NUM_SEND_BUFFERS; i++) {
744	elan3_primeevent(result->ctx, result->sbuf_pull_event[i], 1);
745	elan3_setevent( result->ctx, result->sbuf_pull_event[i] );
746	}
747
748	/* And now we're ready to face the world. */
749	elan3_block_inputter (result->ctx, 0);
750
751	return(result);
752	}
753
754	void teac_Close(Tcomm *tcomm)
755	{
756	int i;
757
758	if (tcomm) {
759	/* First we have to wait until all pending messages have been
760	* pulled (assuming they got initialized in the first place).
761	*/
762	if ((tcomm->sbuf_pull_event[0] != 0) && (tcomm->sbuf_ready[0] != NULL)) {
763	for (i=0; i<NUM_SEND_BUFFERS; i++) {
764	elan3_waitevent_word(tcomm->ctx, tcomm->sbuf_pull_event[i],
765	tcomm->sbuf_ready[i], 10);
766	}
767	crDebug("All TEAC messages have reported home!\n");
768	}
769	elan3_block_inputter (tcomm->ctx, 1);
770
771	if (tcomm->e_dma != 0) elan3_freeElan(tcomm->ctx, tcomm->e_dma);
772	if (tcomm->s_event != 0) elan3_freeElan(tcomm->ctx, tcomm->s_event);
773	if (tcomm->r_event != NULL) {
774	if (tcomm->r_event[0] != NULL) {
775	if (tcomm->r_event[0][0] != 0) elan3_freeElan(tcomm->ctx,
776	tcomm->r_event[0][0]);
777	crFree(tcomm->r_event[0]);
778	}
779	crFree(tcomm->r_event);
780	}
781	if (tcomm->sbuf_pull_event[0] != 0)
782	elan3_freeElan(tcomm->ctx, tcomm->sbuf_pull_event[0]);
783	if (tcomm->sendWrappers[0] != NULL) {
784	for (i=0; i<NUM_SEND_BUFFERS; i++) {
785	if (tcomm->sendWrappers[i]->buf != NULL) {
786	elan3_free(tcomm->ctx, tcomm->sendWrappers[i]->buf);
787	tcomm->totalSendBufferBytesAllocated -=
788	tcomm->sendWrappers[i]->totSize;
789	}
790	}
791	crFree(tcomm->sendWrappers[0]);
792	}
793	if (tcomm->rbuf_pull_event != 0)
794	elan3_freeElan(tcomm->ctx, tcomm->rbuf_pull_event);
795	if (tcomm->m_snd != NULL) elan3_free(tcomm->ctx,
796	(E3_uint32*)tcomm->m_snd);
797	if (tcomm->m_rcv != NULL) {
798	if (tcomm->m_rcv[0] != NULL) elan3_free(tcomm->ctx,
799	(E3_uint32*)tcomm->m_rcv[0]);
800	crFree(tcomm->m_rcv);
801	}
802	if (tcomm->sbuf_ready[0] != NULL)
803	elan3_free(tcomm->ctx, (E3_uint32*)tcomm->sbuf_ready[0]);
804	if (tcomm->rbuf_ready != NULL) elan3_free(tcomm->ctx,
805	(E3_uint32*)tcomm->rbuf_ready);
806	if (tcomm->mbuff != NULL) {
807	if (tcomm->mbuff[0] != NULL) elan3_free(tcomm->ctx, tcomm->mbuff[0]);
808	crFree(tcomm->mbuff);
809	}
810	#if (TEAC_CREATE_TYPE==2)
811	elan3_detach(tcomm->ctx);
812	elan3_fini(tcomm->ctx);
813	#else
814	/* elan3_detach and elan3_destroy seem to crash sometimes in
815	* these versions.
816	*/
817	#endif
818	}
819	}
820
821	int teac_Select(Tcomm* tcomm, int *ids, int num_ids, int timeout)
822	{
823	int id;
824	while (timeout-- > 0) {
825	if ((id= teac_Poll(tcomm, ids, num_ids)) >= 0) return id;
826	}
827
828	return -1;
829	}
830
831	int teac_Poll(Tcomm* tcomm, int *ids, int num_ids)
832	{
833	int i;
834	int j;
835
836	for (j=0; j<num_ids; j++) {
837	int index= (j+tcomm->poll_shift) % num_ids;
838	int thisId= ids[index];
839	for (i=0; i<NUM_SEND_BUFFERS; i++) {
840	if (elan3_pollevent_word(tcomm->ctx, &(tcomm->m_rcv[thisId][i]), 1)) {
841	#ifdef never
842	tcomm->poll_shift= index;
843	#endif
844	return thisId;
845	}
846	}
847	}
848
849	return -1;
850	}
851
852	int teac_sendBufferAvailable(Tcomm* tcomm)
853	{
854	int i;
855	for (i=0; i<NUM_SEND_BUFFERS; i++) {
856	if (elan3_pollevent_word(tcomm->ctx, tcomm->sbuf_ready[i], 1))
857	return 1;
858	}
859	return 0;
860	}
861
862	SBuffer* teac_getSendBuffer( Tcomm* tcomm, long size )
863	{
864	/* Find a free send buffer. We'll busy wait in this poll loop
865	* if necessary.
866	*/
867	int i= 0;
868	while (1) {
869	if (elan3_pollevent_word(tcomm->ctx, tcomm->sbuf_ready[i],
870	1)) break;
871	if (++i == NUM_SEND_BUFFERS) i= 0;
872	}
873	/* We will use this buffer! */
874	#if 0
875	crDebug("Allocated message buffer %d\n",i);
876	#endif
877	(tcomm->sbuf_ready[i])= 0; / mark it busy */
878
879	/* If the associated chunk of memory is smaller than that requested,
880	* replace it with something larger.
881	*/
882	if (tcomm->sendWrappers[i]->totSize < size) {
883	tcomm->totalSendBufferBytesAllocated -= tcomm->sendWrappers[i]->totSize;
884	elan3_free( tcomm->ctx, tcomm->sendWrappers[i]->buf );
885	if (!(tcomm->sendWrappers[i]->buf=
886	(char*)elan3_allocMain(tcomm->ctx, 8, size))) {
887	perror("teac_getSendBuffer: failed to grow send buffer");
888	exit(-1);
889	}
890	tcomm->totalSendBufferBytesAllocated += size;
891	}
892	tcomm->sendWrappers[i]->totSize= size;
893	tcomm->sendWrappers[i]->validSize= 0;
894	return tcomm->sendWrappers[i];
895	}
896
897	SBuffer* teac_getUnreadySendBuffer( Tcomm* tcomm, long size )
898	{
899	SBuffer* result= NULL;
900	if (!(result= (SBuffer*)crAlloc(sizeof(SBuffer)))) {
901	fprintf(stderr,"libteac: read_node_map: unable to allocate %d bytes!\n",
902	sizeof(SBuffer));
903	abort();
904	}
905	result->bufId= -1; /* this marks it unready */
906	#if 0
907	crDebug("Allocated an unready message buffer!\n");
908	#endif
909
910	/* Allocate some DMA-able memory */
911	if (!(result->buf= (char*)elan3_allocMain(tcomm->ctx, 8, size))) {
912	perror("teac_getUnreadySendBuffer: failed to allocate elan3 memory");
913	exit(-1);
914	}
915	result->totSize= size;
916	result->validSize= 0;
917	tcomm->totalSendBufferBytesAllocated += result->totSize;
918
919	return result;
920	}
921
922	SBuffer* teac_makeSendBufferReady( Tcomm* tcomm, SBuffer* buf )
923	{
924	int i= 0;
925	/* If the input buffer is already ready, just return it */
926	if (buf->bufId >= 0 && buf->bufId<NUM_SEND_BUFFERS) return buf;
927
928	/* Find a free send buffer. We'll busy wait in this poll loop
929	* if necessary.
930	*/
931	while (1) {
932	if (elan3_pollevent_word(tcomm->ctx, tcomm->sbuf_ready[i],
933	1)) break;
934	if (++i == NUM_SEND_BUFFERS) i= 0;
935	}
936	/* We will use this buffer! */
937	#if 0
938	crDebug("Allocated message buffer %d in makeSendBufferReady\n",i);
939	#endif
940	(tcomm->sbuf_ready[i])= 0; / mark it busy */
941
942	/* Substitute the unready payload for the old payload */
943	tcomm->totalSendBufferBytesAllocated -= tcomm->sendWrappers[i]->totSize;
944	elan3_free( tcomm->ctx, tcomm->sendWrappers[i]->buf );
945	tcomm->sendWrappers[i]->buf= buf->buf;
946
947	tcomm->sendWrappers[i]->totSize= buf->totSize;
948	tcomm->sendWrappers[i]->validSize= buf->validSize;
949	crFree(buf);
950	return tcomm->sendWrappers[i];
951
952	}
953
954	int teac_Send( Tcomm* tcomm, int* ids, int num_ids, SBuffer* buf, void *start )
955	{
956	int vp = tcomm->vp;
957	int iBuf;
958	int iDest;
959	teacMsg *msg;
960
961	/* Complain loudly if this is an unready buffer */
962	if (buf->bufId==-1) {
963	fprintf(stderr,"teac_Send: tried to send an unready buffer!\n");
964	return 0;
965	}
966
967	/* Reality check: is this one of my buffers? */
968	if (buf->bufId<0 \|\| buf->bufId>=NUM_SEND_BUFFERS) {
969	fprintf(stderr,"teac_Send: I don't know this buffer!\n");
970	return 0;
971	}
972
973	/* Reality check: did they write too much into the message? */
974	if (buf->validSize > buf->totSize) {
975	fprintf(stderr,"teac_Send: message too large! (%ld vs %ld)\n",
976	buf->validSize, buf->totSize);
977	abort();
978	return 0;
979	}
980
981	iBuf= buf->bufId;
982	msg = &(tcomm->mbuff[vp][iBuf]);
983	msg->msgnum = tcomm->msgnum++;
984	msg->size = buf->validSize;
985	msg->host = vp;
986	if ( start != NULL )
987	msg->mptr = teac_main2elan( tcomm->ctx, start );
988	else
989	msg->mptr = teac_main2elan(tcomm->ctx, buf->buf);
990	msg->clr_event = elan3_sdram2elan(tcomm->ctx, tcomm->ctx->sdram,
991	tcomm->sbuf_pull_event[iBuf]);
992	msg->new= 1;
993
994	/* Set up the parts of the DMA that are not specific to destination */
995	tcomm->dma->dma_type = E3_DMA_TYPE(DMA_BYTE,DMA_WRITE,DMA_NORMAL,0);
996	tcomm->dma->dma_size = sizeof(teacMsg);
997	tcomm->dma->dma_srcEvent =
998	elan3_sdram2elan(tcomm->ctx,tcomm->ctx->sdram,tcomm->s_event);
999	tcomm->dma->dma_source = teac_main2elan(tcomm->ctx, msg);
1000	elan3_primeevent(tcomm->ctx, tcomm->sbuf_pull_event[buf->bufId], num_ids);
1001
1002	/* Send this message off to each destination */
1003	for (iDest=0; iDest<num_ids; iDest++) {
1004	tcomm->dma->dma_srcCookieVProc =
1005	elan3_local_cookie(tcomm->ctx, vp, ids[iDest]);
1006	tcomm->dma->dma_destCookieVProc = ids[iDest];
1007	tcomm->dma->dma_destEvent =
1008	elan3_sdram2elan(tcomm->ctx,tcomm->ctx->sdram,
1009	tcomm->r_event[vp][iBuf])
1010	+ sdramAddrBase[(ids[iDest]/NUM_SEND_BUFFERS) + tcomm->lhost]
1011	- sdramAddrBase[(vp/NUM_SEND_BUFFERS) + tcomm->lhost];
1012	tcomm->dma->dma_dest = teac_main2elan(tcomm->ctx, msg)
1013	+ elanAddrBase[(ids[iDest]/NUM_SEND_BUFFERS) + tcomm->lhost]
1014	- elanAddrBase[(vp/NUM_SEND_BUFFERS) + tcomm->lhost];
1015	elan3_primeevent(tcomm->ctx, tcomm->s_event, 1);
1016	*(tcomm->m_snd)= 0;
1017	elan3_putdma_main(tcomm->ctx, tcomm->dma, tcomm->e_dma);
1018	#if 0
1019	crDebug("DMA dest event %x, dest mem %lx\n",
1020	tcomm->dma->dma_destEvent,
1021	(long)tcomm->dma->dma_dest);
1022	crDebug("Mem shifts are %x %x based on %d %d\n",
1023	elanAddrBase[(ids[iDest]/NUM_SEND_BUFFERS) + tcomm->lhost],
1024	elanAddrBase[(vp/NUM_SEND_BUFFERS) + tcomm->lhost],
1025	ids[iDest],vp);
1026	crDebug("Send msg %d in buffer %d to %d (list index %d)...",
1027	msg->msgnum,iBuf, ids[iDest],iDest);
1028	#endif
1029	elan3_waitevent_word(tcomm->ctx,
1030	tcomm->s_event, tcomm->m_snd, ELAN_WAIT_EVENT);
1031	#if 0
1032	crDebug("message away!\n");
1033	#endif
1034	}
1035	return 1;
1036	}
1037
1038	RBuffer* teac_Recv(Tcomm* tcomm, int id)
1039	{
1040	int vp = tcomm->vp;
1041	RBuffer* result= NULL;
1042	int iEvent= 0;
1043	int iBuf= 0;
1044	int i;
1045	int lowestMsgnum;
1046
1047	/* poll until we get an incoming message from the given sender */
1048	while (1) {
1049	if (elan3_pollevent_word(tcomm->ctx, &(tcomm->m_rcv[id][iEvent]), 1))
1050	break;
1051	if (++iEvent == NUM_SEND_BUFFERS) iEvent= 0;
1052	}
1053
1054	/* This may not be the earliest event, however. */
1055	lowestMsgnum= -1;
1056	for (i=0; i<NUM_SEND_BUFFERS; i++) {
1057	#if 0
1058	crDebug("Testing for new msg at %lx -> %lx\n",
1059	(long)&(tcomm->mbuff[id][i]),
1060	(long)teac_main2elan(tcomm->ctx,(void*)(&tcomm->mbuff[id][i])));
1061	#endif
1062	if (tcomm->mbuff[id][i].new) {
1063	if ((lowestMsgnum < 0)
1064	\|\| (tcomm->mbuff[id][i].msgnum < (E3_uint32)lowestMsgnum)) {
1065	lowestMsgnum= tcomm->mbuff[id][i].msgnum;
1066	iBuf= i;
1067	}
1068	}
1069	}
1070	if (lowestMsgnum<0) {
1071	fprintf(stderr,
1072	"teac_Recv: internal error: can't find message I just got!\n");
1073	return NULL;
1074	}
1075	tcomm->mbuff[id][iBuf].new= 0;
1076	tcomm->m_rcv[id][iBuf]= 0;
1077	elan3_primeevent(tcomm->ctx, tcomm->r_event[id][iBuf],1);
1078	#if 0
1079	crDebug("got msg %d in buffer %d from %d!\n",
1080	tcomm->mbuff[id][iBuf].msgnum, iBuf, id);
1081	#endif
1082
1083	/* Make some space to put the message when it arrives */
1084	if (!(result= (RBuffer*)crAlloc(sizeof(RBuffer)))) {
1085	fprintf(stderr,"teac_Recv: unable to allocate %d bytes!\n",
1086	sizeof(RBuffer));
1087	return NULL;
1088	}
1089	#if 0
1090	if (!(result->buf= (void*)elan3_allocMain(tcomm->ctx, 8,E_BUFFER_SIZE))) {
1091	perror("teac_Recv: elan3_allocMain failed for buffer");
1092	return(NULL);
1093	}
1094	result->totSize= E_BUFFER_SIZE;
1095	#endif
1096	if (!(result->buf= (void*)elan3_allocMain(tcomm->ctx, 8,
1097	tcomm->mbuff[id][iBuf].size))) {
1098	perror("teac_Recv: elan3_allocMain failed for buffer");
1099	return(NULL);
1100	}
1101	result->totSize= tcomm->mbuff[id][iBuf].size;
1102	tcomm->totalRecvBufferBytesAllocated+= result->totSize;
1103	result->validSize= tcomm->mbuff[id][iBuf].size;
1104	result->from= tcomm->mbuff[id][iBuf].host;
1105	result->senderMsgnum= tcomm->mbuff[id][iBuf].msgnum;
1106
1107	/* Set up the DMA to pull the message */
1108	tcomm->dma->dma_type = E3_DMA_TYPE(DMA_BYTE,DMA_READ,DMA_NORMAL,0);
1109	tcomm->dma->dma_size = tcomm->mbuff[id][iBuf].size;
1110	tcomm->dma->dma_source = tcomm->mbuff[id][iBuf].mptr;
1111	tcomm->dma->dma_dest = teac_main2elan(tcomm->ctx,result->buf);
1112	tcomm->dma->dma_srcCookieVProc =
1113	elan3_remote_cookie(tcomm->ctx, vp, tcomm->mbuff[id][iBuf].host);
1114	tcomm->dma->dma_destCookieVProc =
1115	elan3_local_cookie(tcomm->ctx, vp, tcomm->mbuff[id][iBuf].host);
1116	tcomm->dma->dma_srcEvent = tcomm->mbuff[id][iBuf].clr_event;
1117	tcomm->dma->dma_destEvent =
1118	elan3_sdram2elan(tcomm->ctx,tcomm->ctx->sdram,
1119	tcomm->rbuf_pull_event);
1120
1121
1122	elan3_primeevent(tcomm->ctx, tcomm->rbuf_pull_event,1);
1123	*(tcomm->rbuf_ready)= 0;
1124	elan3_getdma_main(tcomm->ctx, tcomm->dma, tcomm->e_dma);
1125	elan3_waitevent_word(tcomm->ctx,
1126	tcomm->rbuf_pull_event,
1127	tcomm->rbuf_ready, ELAN_WAIT_EVENT);
1128
1129	return(result);
1130	}
1131
1132	int teac_Dispose( Tcomm* tcomm, RBuffer* buf )
1133	{
1134	tcomm->totalRecvBufferBytesAllocated -= buf->totSize;
1135	elan3_free(tcomm->ctx, buf->buf);
1136	crFree(buf);
1137	return 0;
1138	}
1139
1140	char* teac_getTcommString(Tcomm c, char buf, int buflen)
1141	{
1142	snprintf(buf,buflen-1,
1143	"<vp= %d, host range %d-%d, ctxnum range %d-%d, msg %d>",
1144	c->vp,c->lhost,c->hhost,c->lctx,c->hctx,c->msgnum);
1145	buf[buflen-1]= '\0';
1146	return buf;
1147	}
1148
1149	char* teac_getConnString(Tcomm c, int id, char buf, int buflen)
1150	{
1151	int rel_rank= id%4;
1152	int node= ((id-rel_rank)/4) + c->lhost;
1153	snprintf(buf,buflen-1,"vp %d, <%s>:%d",id,
1154	hosts[hostsIndex[node]].name,rel_rank);
1155	buf[buflen-1]= '\0';
1156	#if 0
1157	crDebug("getConnString: lookup id %d -> %d %d -> %s\n",id,rel_rank,node,buf);
1158	#endif
1159	return buf;
1160	}
1161
1162	int teac_getConnId(Tcomm c, const char host, int rank)
1163	{
1164	int node= trans_host(host);
1165	#if 0
1166	crDebug("getConnId: <%s> %d %d maps to %d %d\n",
1167	host, rank, c->lhost, node, (4*(node - c->lhost) + (rank%4)));
1168	#endif
1169	return (4*(node - c->lhost) + (rank%4));
1170	}
1171
1172	int teac_getHostInfo(Tcomm c, char host, const int hostLength,
1173	int* railMask, int *nodeId,
1174	long* sdramBaseAddr, long* elanBaseAddr)
1175	{
1176	#if (TEAC_DEVINFO_TYPE == 2)
1177	ELAN_DEVINFO info;
1178	ELAN_POSITION position;
1179	#else
1180	ELAN3_DEVINFO info;
1181	#endif
1182	char* here;
1183
1184	if (gethostname(host,hostLength-1)) {
1185	perror("Can't get my own host name");
1186	return 0;
1187	}
1188	host[hostLength-1]= '\0';
1189	if ((here= crStrchr(host,'.')) != NULL) *here= '\0';
1190
1191	#if (TEAC_DEVINFO_TYPE == 2)
1192	(void)elan3_get_devinfo(c->ctx, &info);
1193	(void)elan3_get_position(c->ctx, &position);
1194	*nodeId= position.pos_nodeid;
1195	#elif (TEAC_DEVINFO_TYPE == 1)
1196	elan3_devinfo(0, &info);
1197	*nodeId= info.Position.NodeId;
1198	#else
1199	elan3_devinfo(0, &info);
1200	*nodeId= info.NodeId;
1201	#endif
1202
1203	#if (TEAC_CAP_TYPE == 2)
1204	*railMask= c->cap.cap_railmask;
1205	#else
1206	*railMask= c->cap.RailMask;
1207	#endif
1208
1209	*sdramBaseAddr= (int)c->r_event[0][0];
1210
1211	elanBaseAddr= (long)teac_main2elan(c->ctx,(void)c->m_rcv[0]);
1212	return 1;
1213	}

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source: vbox/trunk/src/VBox/GuestHost/OpenGL/util/libteac.c@ 32394

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