xref: /freebsd/sys/dev/pms/RefTisa/tisa/sassata/common/tdesgl.c (revision 63d1fd5970ec814904aa0f4580b10a0d302d08b2)
1 /*******************************************************************************
2 *Copyright (c) 2014 PMC-Sierra, Inc.  All rights reserved.
3 *
4 *Redistribution and use in source and binary forms, with or without modification, are permitted provided
5 *that the following conditions are met:
6 *1. Redistributions of source code must retain the above copyright notice, this list of conditions and the
7 *following disclaimer.
8 *2. Redistributions in binary form must reproduce the above copyright notice,
9 *this list of conditions and the following disclaimer in the documentation and/or other materials provided
10 *with the distribution.
11 *
12 *THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED
13 *WARRANTIES,INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
14 *FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
15 *FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
16 *NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
17 *BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
18 *LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
19 *SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
20 
21 **
22 ********************************************************************************/
23 /*******************************************************************************/
24 /** \file
25  *
26  *
27  * This file contains ESGL realted functions
28  *
29  */
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
32 #include <dev/pms/config.h>
33 
34 #include <dev/pms/freebsd/driver/common/osenv.h>
35 #include <dev/pms/freebsd/driver/common/ostypes.h>
36 #include <dev/pms/freebsd/driver/common/osdebug.h>
37 
38 #include <dev/pms/RefTisa/sallsdk/api/sa.h>
39 #include <dev/pms/RefTisa/sallsdk/api/saapi.h>
40 #include <dev/pms/RefTisa/sallsdk/api/saosapi.h>
41 
42 #include <dev/pms/RefTisa/tisa/api/titypes.h>
43 #include <dev/pms/RefTisa/tisa/api/ostiapi.h>
44 #include <dev/pms/RefTisa/tisa/api/tiapi.h>
45 #include <dev/pms/RefTisa/tisa/api/tiglobal.h>
46 
47 #ifdef FDS_SM
48 #include <dev/pms/RefTisa/sat/api/sm.h>
49 #include <dev/pms/RefTisa/sat/api/smapi.h>
50 #include <dev/pms/RefTisa/sat/api/tdsmapi.h>
51 #endif
52 
53 #ifdef FDS_DM
54 #include <dev/pms/RefTisa/discovery/api/dm.h>
55 #include <dev/pms/RefTisa/discovery/api/dmapi.h>
56 #include <dev/pms/RefTisa/discovery/api/tddmapi.h>
57 #endif
58 
59 #include <dev/pms/RefTisa/tisa/sassata/sas/common/tdtypes.h>
60 #include <dev/pms/freebsd/driver/common/osstring.h>
61 #include <dev/pms/RefTisa/tisa/sassata/common/tdutil.h>
62 
63 #ifdef INITIATOR_DRIVER
64 #include <dev/pms/RefTisa/tisa/sassata/sas/ini/itdtypes.h>
65 #include <dev/pms/RefTisa/tisa/sassata/sas/ini/itddefs.h>
66 #include <dev/pms/RefTisa/tisa/sassata/sas/ini/itdglobl.h>
67 #endif
68 
69 #ifdef TARGET_DRIVER
70 #include <dev/pms/RefTisa/tisa/sassata/sas/tgt/ttdglobl.h>
71 #include <dev/pms/RefTisa/tisa/sassata/sas/tgt/ttdxchg.h>
72 #include <dev/pms/RefTisa/tisa/sassata/sas/tgt/ttdtypes.h>
73 #endif
74 
75 #include <dev/pms/RefTisa/tisa/sassata/common/tdsatypes.h>
76 #include <dev/pms/RefTisa/tisa/sassata/common/tdproto.h>
77 
78 /* no more esgl related functions */
79 #ifdef REMOVED
80 /*****************************************************************************
81 *! \brief  tdsaEsglInit
82 *
83 *  Purpose: This function initializes the linked list of ESGL pool
84 *
85 *  \param  tiRoot:  Pointer to root data structure.
86 *
87 *  \return: None
88 *
89 *  \note
90 *
91 *****************************************************************************/
92 osGLOBAL void
93 tdsaEsglInit(
94              tiRoot_t *tiRoot
95              )
96 {
97   tdsaRoot_t               *tdsaRoot    = (tdsaRoot_t *)tiRoot->tdData;
98   tdsaContext_t            *tdsaAllShared = (tdsaContext_t *)&tdsaRoot->tdsaAllShared;
99   tdsaEsglAllInfo_t        *pEsglAllInfo = (tdsaEsglAllInfo_t *)&(tdsaAllShared->EsglAllInfo);
100   tdsaEsglPagePool_t       *pEsglPagePool;
101 
102   bit32 pageno;
103   bit32 PagePhysAddrUpper;
104   bit32 PagePhysAddrLower;
105   bit32 prev_PagePhysAddrLower;
106   tdsaEsglPageInfo_t *pEsglPageInfo;
107   void *PageVirtAddr;
108   bit32 PageSizeInBytes;
109 
110   /* for memory index requirement */
111   agsaRoot_t          agRoot;
112   bit32               maxSALocks = 0;
113   bit32               usecsPerTick = 0;
114   agsaSwConfig_t      SwConfig;
115   agsaMemoryRequirement_t memRequirement;
116   agsaQueueConfig_t   *QueueConfig;
117   bit32                i;
118 
119   TI_DBG6(("tdsaEsglInit: start\n"));
120 
121   tdsaGetSwConfigParams(tiRoot);
122   QueueConfig = &tdsaAllShared->QueueConfig;
123 
124   for(i=0;i<QueueConfig->numInboundQueues;i++)
125   {
126     QueueConfig->inboundQueues[i].elementCount = tdsaAllShared->InboundQueueSize;
127     QueueConfig->inboundQueues[i].elementSize = tdsaAllShared->InboundQueueEleSize;
128     QueueConfig->inboundQueues[i].priority = tdsaAllShared->InboundQueuePriority[i];
129     QueueConfig->inboundQueues[i].reserved = 0;
130   }
131   for(i=0;i<QueueConfig->numOutboundQueues;i++)
132   {
133     QueueConfig->outboundQueues[i].elementCount = tdsaAllShared->OutboundQueueSize;
134     QueueConfig->outboundQueues[i].elementSize = tdsaAllShared->OutboundQueueEleSize;
135     QueueConfig->outboundQueues[i].interruptDelay = tdsaAllShared->OutboundQueueInterruptDelay[i]; /* default 0; no interrupt delay */
136     QueueConfig->outboundQueues[i].interruptCount = tdsaAllShared->OutboundQueueInterruptCount[i]; /* default 1*/
137     QueueConfig->outboundQueues[i].interruptVectorIndex = 0;
138   }
139 
140   /*
141     hardcoded Queue numbers
142   */
143   QueueConfig->sasHwEventQueue = 0;
144   QueueConfig->sataNCQErrorEventQueue = 0;
145   SwConfig.sizefEventLog1 = HOST_EVENT_LOG_SIZE;
146   SwConfig.sizefEventLog2 = HOST_EVENT_LOG_SIZE;
147   SwConfig.eventLog1Option = 0;
148   SwConfig.eventLog2Option = 0;
149   SwConfig.fatalErrorInterrtuptEnable = 1;
150   SwConfig.fatalErrorInterruptVector = 1;
151   SwConfig.reserved = 0;
152 
153 
154   SwConfig.param3 = (void *)&(tdsaAllShared->QueueConfig);
155   /* to find out memRequirement */
156   saGetRequirements(&agRoot, &SwConfig, &memRequirement, &usecsPerTick, &maxSALocks);
157 
158   /* initializes tdsaEsglAllInfo_t */
159   pEsglAllInfo->physAddrUpper = tdsaAllShared->loResource.loLevelMem.mem[memRequirement.count].physAddrUpper;
160   pEsglAllInfo->physAddrLower = tdsaAllShared->loResource.loLevelMem.mem[memRequirement.count].physAddrLower;
161   pEsglAllInfo->virtPtr       = tdsaAllShared->loResource.loLevelMem.mem[memRequirement.count].virtPtr;
162   pEsglAllInfo->NumEsglPages  = tdsaAllShared->loResource.loLevelMem.mem[memRequirement.count].numElements; /*   NUM_ESGL_PAGES;  number of esgl pages; configurable */
163   pEsglAllInfo->EsglPageSize  = tdsaAllShared->loResource.loLevelMem.mem[memRequirement.count].singleElementLength; /* sizeof(agsaEsgl_t) */
164   pEsglAllInfo->NumFreeEsglPages = pEsglAllInfo->NumEsglPages;
165   pEsglPagePool = pEsglAllInfo->EsglPagePool;
166 
167   TI_DBG6(("tdsaEsglInit: pEsglPagePool %p\n", pEsglPagePool));
168   TI_DBG6(("tdsaEsglInit: tdsaAllShared->loResource.loLevelMem.mem[18].singleElementLength %d\n", tdsaAllShared->loResource.loLevelMem.mem[18].singleElementLength));
169   TI_DBG6(("tdsaEsglInit: NumEsglPage %d EsglPageSize %d\n", pEsglAllInfo->NumEsglPages, pEsglAllInfo->EsglPageSize)); /* ?, 128 */
170   TI_DBG6(("tdsaEsglInit: NumFreeEsglPages %d\n", pEsglAllInfo->NumFreeEsglPages));
171   /* initialize the linked lists */
172   TDLIST_INIT_HDR(&pEsglAllInfo->freelist);
173 
174 
175   PageVirtAddr      = pEsglAllInfo->virtPtr;
176   PagePhysAddrUpper = pEsglAllInfo->physAddrUpper;
177   PagePhysAddrLower = pEsglAllInfo->physAddrLower;
178   PageSizeInBytes   = pEsglAllInfo->EsglPageSize;
179 
180   TI_DBG6(("tdsaEsglInit:  PageSizeInBytes 0x%x\n",  PageSizeInBytes));
181   for (pageno = 0 ; pageno < pEsglAllInfo->NumEsglPages ; pageno++)
182   {
183     pEsglPageInfo = &(pEsglPagePool->EsglPages[pageno]);
184     OSSA_WRITE_LE_32(agRoot, pEsglPageInfo, OSSA_OFFSET_OF(pEsglPageInfo, physAddressUpper), PagePhysAddrUpper);
185     OSSA_WRITE_LE_32(agRoot, pEsglPageInfo, OSSA_OFFSET_OF(pEsglPageInfo, physAddressLower), PagePhysAddrLower);
186     pEsglPageInfo->len = PageSizeInBytes;
187     /* for debugging onlye*/
188     pEsglPageInfo->id = pageno+123;
189     pEsglPageInfo->agEsgl = (agsaEsgl_t *)PageVirtAddr;
190 
191     /* for debugging only */
192     TI_DBG6(("tdsaEsglInit: index %d upper 0x%8x lower 0x%8x PageVirtAddr %p\n", pageno, PagePhysAddrUpper, PagePhysAddrLower, PageVirtAddr));
193 
194 
195     /* updates addresses */
196     prev_PagePhysAddrLower = PagePhysAddrLower;
197     PagePhysAddrLower += pEsglAllInfo->EsglPageSize;
198     /* if lower wraps around, increment upper */
199     if (PagePhysAddrLower <= prev_PagePhysAddrLower)
200     {
201       PagePhysAddrUpper++;
202     }
203 
204     if (pageno == pEsglAllInfo->NumEsglPages - 1) /* last page */
205     {
206       pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].len = 0;
207       /* set bit31 to zero */
208       CLEAR_ESGL_EXTEND(pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].extReserved);
209     }
210     else
211     {
212       /* first and so on */
213       pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].sgLower = PagePhysAddrLower;
214       pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].sgUpper = PagePhysAddrUpper;
215       pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].len = PageSizeInBytes; /* sizeof (agsaEsgl_t)*/
216       /* set bit31 to one */
217       SET_ESGL_EXTEND(pEsglPageInfo->agEsgl->descriptor[MAX_ESGL_ENTRIES-1].extReserved);
218     }
219 
220     TDLIST_INIT_ELEMENT(&pEsglPageInfo->tdlist);
221     tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
222     TDLIST_ENQUEUE_AT_TAIL(&pEsglPageInfo->tdlist, &pEsglAllInfo->freelist);
223     tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
224 
225     PageVirtAddr = (bit8 *)PageVirtAddr + PageSizeInBytes;
226   } /* end for */
227 
228 
229 
230 #ifdef TD_INTERNAL_DEBUG /* for debugging only, for keep now */
231   for (pageno = 0 ; pageno < pEsglAllInfo->NumEsglPages ; pageno++)
232   {
233     TI_DBG6(("tdsaEsglInit: index %d EsglPages %p\n", pageno, &pEsglPagePool->EsglPages[pageno]));
234     TI_DBG6(("tdsaEsglInit: nextupper 0x%8x nextlower 0x%8x\n", pEsglPagePool->EsglPages[pageno].agEsgl->nextPageUpper, pEsglPagePool->EsglPages[pageno].agEsgl->nextPageLower));
235   }
236   TI_DBG6(("tdsaEsglInit:  tdsaEsglPageInfo_t size %d 0x%x\n", sizeof(tdsaEsglPageInfo_t), sizeof(tdsaEsglPageInfo_t)));
237   TI_DBG6(("tdsaEsglInit: sizeof(SASG_DESCRIPTOR) %d 0x%x\n", sizeof(SASG_DESCRIPTOR), sizeof(SASG_DESCRIPTOR)));
238 #endif
239 
240   return;
241 }
242 
243 
244 /*****************************************************************************
245 *! \brief  tdsaGetEsglPages
246 *
247 *  Purpose: This function prepares linked list of ESGL pages from
248 *           the given scatter-gather list.
249 *
250 *  \param tiRoot:       Pointer to root data structure.
251 *  \param EsglListHdr:  pointer to list header where the list needs to be stored.
252 *  \param ptiSgl:       Pointer to scatter-gather list.
253 *  \param virtSgl:      virtual pointer to scatter-gather list.
254 *
255 *  \return None
256 *
257 *  \note -
258 *       1. If we are out of ESGL pages, then no pages will be added to the list
259 *          pointed to by EsglListHdr. The list should be empty before calling
260 *          this function, so that after returning from this function, the
261 *          function can check for the emptyness of the list and find out if
262 *          any pages were added or not.
263 *
264 *****************************************************************************/
265 osGLOBAL void
266 tdsaGetEsglPages(
267                  tiRoot_t *tiRoot,
268                  tdList_t *EsglListHdr,
269                  tiSgl_t  *ptiSgl,
270                  tiSgl_t  *virtSgl
271                  )
272 {
273   tdsaRoot_t        *tdsaRoot        = (tdsaRoot_t *) tiRoot->tdData;
274   tdsaContext_t     *tdsaAllShared = (tdsaContext_t *)&tdsaRoot->tdsaAllShared;
275 
276   tdsaEsglAllInfo_t *pEsglAllInfo = &(tdsaAllShared->EsglAllInfo);
277   bit32 numSgElements = ptiSgl->len;
278   bit32 numEntriesPerPage = MAX_ESGL_ENTRIES;
279   bit32 numPagesRequired = ((numSgElements - 1) / numEntriesPerPage) + 1;
280   bit32 i, j;
281   tdList_t *tdlist_to_fill;
282   tdsaEsglPageInfo_t *page_to_fill;
283   tiSgl_t *tmp_tiSgl = (tiSgl_t *)virtSgl;
284   agsaSgl_t *pDesc;
285   agsaEsgl_t *agEsgl, *PrevagEsgl = agNULL;
286 
287   TI_DBG6(("tdsaGetEsglPages: start\n"));
288   TI_DBG6(("tdsaGetEsglPages: pEsglPagePool %p\n", pEsglAllInfo->EsglPagePool));
289   TI_DBG6(("tdsaGetEsglPages: &(pEsglAllInfo->freelist) %p\n", &pEsglAllInfo->freelist));
290   TI_DBG6(("tdsaGetEsglPages: numSgElements %d numEntriesPerPage %d\n", numSgElements, numEntriesPerPage)); /* ?,  10 */
291   TI_DBG6(("tdsaGetEsglPages: numPagesRequired %d NumFreeEsglPages %d\n", numPagesRequired, pEsglAllInfo->NumFreeEsglPages)); /* 1, 2 */
292   TI_DBG6(("tdsaGetEsglPages: free Pages %d\n", pEsglAllInfo->NumFreeEsglPages));
293 
294   if (numPagesRequired > pEsglAllInfo->NumFreeEsglPages)
295   {
296     TI_DBG1(("tdsaGetEsglPages:don't have enough freepages. required %d free %d\n", numPagesRequired, pEsglAllInfo->NumFreeEsglPages));
297     return;
298   }
299   tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
300   pEsglAllInfo->NumFreeEsglPages -= numPagesRequired;
301   tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
302 
303 
304 
305 #ifdef TD_INTERNAL_DEBUG  /* for debugging only */
306   for (i=0; i < 2; i++)
307   {
308     /* remove one page from freelist */
309     tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
310     TDLIST_DEQUEUE_FROM_HEAD(&tdlist_to_fill, &pEsglAllInfo->freelist);
311     tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
312 
313     /* get the pointer to the page from list pointer */
314     page_to_fill = TDLIST_OBJECT_BASE(tdsaEsglPageInfo_t, tdlist, tdlist_to_fill);
315     /* for debugging */
316     TI_DBG6(("tdsaGetEsglPages:page ID %d\n", page_to_fill->id));
317     agEsgl = page_to_fill->agEsgl;
318 
319     pDesc = (SASG_DESCRIPTOR *)agEsgl;
320 
321     for (j=0; j <numEntriesPerPage; j++)
322     {
323       TI_DBG6(("tdsaGetEsglPages: lower %d  upper %d\n", pDesc->sgLower, pDesc->sgUpper));
324       TI_DBG6(("tdsaGetEsglPages: len %d\n", pDesc->len));
325       pDesc++;
326     }
327     TI_DBG6(("tdsaGetEsglPages: next lower %d next upper %d\n", agEsgl->nextPageLower, agEsgl->nextPageUpper));
328 
329   }
330 #endif /* for debugging only  */
331 
332   for (i = 0 ; i < numPagesRequired; i++)
333   {
334     /* remove one page from freelist */
335     tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
336     TDLIST_DEQUEUE_FROM_HEAD(&tdlist_to_fill, &pEsglAllInfo->freelist);
337     tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
338 
339     /* get the pointer to the page from list pointer */
340     page_to_fill = TDLIST_OBJECT_BASE(tdsaEsglPageInfo_t, tdlist, tdlist_to_fill);
341     /* for debugging */
342     TI_DBG6(("tdsaGetEsglPages:page ID %d\n", page_to_fill->id));
343 
344     agEsgl = page_to_fill->agEsgl;
345     pDesc = (agsaSgl_t *)agEsgl;
346 
347     /*
348       adjust next page's address in the followings so that
349       the last entry must be (0,0,0)
350     */
351     if (i == numPagesRequired - 1) /* only one page of last page */
352     {
353       for (j=0; j < numSgElements; j++)
354       {
355         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, sgLower), tmp_tiSgl->lower);
356         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, sgUpper), tmp_tiSgl->upper);
357         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, len), tmp_tiSgl->len);
358         CLEAR_ESGL_EXTEND(pDesc->extReserved);
359         pDesc++;
360         tmp_tiSgl++;
361       }
362       for (j=numSgElements; j < numEntriesPerPage; j++)
363       {
364         /* left over(unused) in the page */
365         pDesc->sgLower = 0x0;
366         pDesc->sgUpper = 0x0;
367         pDesc->len = 0x0;
368         CLEAR_ESGL_EXTEND(pDesc->extReserved);
369         pDesc++;
370       }
371     }
372     else
373     {
374       /* in case of muliple pages, first and later, except one page only or last page */
375       for (j=0; j <numEntriesPerPage - 1; j++) /* else */
376       {
377         /* do this till (last - 1) */
378         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, sgLower), tmp_tiSgl->lower);
379         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, sgUpper), tmp_tiSgl->upper);
380         OSSA_WRITE_LE_32(agRoot, pDesc, OSSA_OFFSET_OF(pDesc, len), tmp_tiSgl->len);
381         CLEAR_ESGL_EXTEND(pDesc->extReserved);
382         pDesc++;
383         tmp_tiSgl++;
384       }
385       numSgElements -= (numEntriesPerPage - 1);
386     }
387     if (PrevagEsgl != agNULL)
388     {
389       /* subsequent pages (second or later pages) */
390       PrevagEsgl->descriptor[MAX_ESGL_ENTRIES-1].sgLower = page_to_fill->physAddressLower;
391       PrevagEsgl->descriptor[MAX_ESGL_ENTRIES-1].sgUpper = page_to_fill->physAddressUpper;
392       PrevagEsgl->descriptor[MAX_ESGL_ENTRIES-1].len = numSgElements;
393       /* set bit31 to one */
394       SET_ESGL_EXTEND(PrevagEsgl->descriptor[MAX_ESGL_ENTRIES-1].extReserved);
395     }
396     PrevagEsgl = agEsgl;
397     /* put ESGL onto the EsglListHdr */
398     tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
399     TDLIST_ENQUEUE_AT_TAIL(tdlist_to_fill, EsglListHdr);
400     tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
401 
402 
403   } /* end for */
404   return;
405 }
406 
407 
408 /*****************************************************************************
409 *! \brief  tdsaFreeEsglPages
410 *
411 *  Purpose: This function frees the ESGL pages pointed to by EsglListHdr
412 *           and puts them back onto the free list.
413 *
414 *  \param  tiRoot:       Pointer to root data structure.
415 *  \param  EsglListHdr:  pointer to list header where the pages to be freed
416 *                        are stored.
417 *
418 *  \return:     None
419 *
420 *  \note -
421 *   1. This function removes all the pages from the list until the list
422 *      empty and chains them at the end of the free list.
423 *****************************************************************************/
424 osGLOBAL void
425 tdsaFreeEsglPages(
426                   tiRoot_t *tiRoot,
427                   tdList_t *EsglListHdr
428                   )
429 {
430   tdsaRoot_t         *tdsaRoot        = (tdsaRoot_t *) tiRoot->tdData;
431   tdsaContext_t      *tdsaAllShared = (tdsaContext_t *)&tdsaRoot->tdsaAllShared;
432   tdsaEsglAllInfo_t  *pEsglAllInfo = (tdsaEsglAllInfo_t *)&(tdsaAllShared->EsglAllInfo);
433   tdList_t           *tdlist_to_free;
434 
435   TI_DBG6(("tdsaFreeEsglPages: start\n"));
436   if (tiRoot == agNULL)
437   {
438     TI_DBG1(("tdsaFreeEsglPages: tiRoot is NULL\n"));
439     return;
440   }
441 
442   if (EsglListHdr == agNULL)
443   {
444     TI_DBG1(("tdsaFreeEsglPages: EsglListHdr is NULL\n"));
445     return;
446   }
447 
448   TI_DBG6(("tdsaFreeEsglPages: EsglListHdr %p\n", EsglListHdr));
449   tdsaSingleThreadedEnter(tiRoot, TD_ESGL_LOCK);
450   while (TDLIST_NOT_EMPTY(EsglListHdr))
451   {
452     TDLIST_DEQUEUE_FROM_HEAD(&tdlist_to_free, EsglListHdr);
453     TDLIST_ENQUEUE_AT_TAIL(tdlist_to_free, &pEsglAllInfo->freelist);
454     pEsglAllInfo->NumFreeEsglPages++;
455   }
456   tdsaSingleThreadedLeave(tiRoot, TD_ESGL_LOCK);
457   TI_DBG6(("tdsaFreeEsglPages: NumFreeEsglPages  %d\n", pEsglAllInfo->NumFreeEsglPages));
458   return;
459 }
460 
461 
462 /*****************************************************************************
463 *! \brief  tdsaGetEsglPagesInfo
464 *
465 *  Purpose: This function gets the information about the size of ESGL pages
466 *           and number pages to be configured.
467 *
468 *  \param tiRoot:     Pointer to root data structure.
469 *  \param pPageSize:  pointer to bit32 where pagesize information is to be
470 *                     stored
471 *  \param pNumPages:  Pointer to bit32 where number of pages information is
472 *                     to be stored
473 *
474 *  \return:     None
475 *
476 *  \note -
477 *
478 *****************************************************************************/
479 osGLOBAL void
480 tdsaGetEsglPagesInfo(
481                      tiRoot_t *tiRoot,
482                      bit32    *pPageSize,
483                      bit32    *pNumPages
484                      )
485 {
486   char    *buffer;
487   bit32   buffLen;
488   bit32   lenRecv = 0;
489   char    *pLastUsedChar = agNULL;
490   char    globalStr[]     = "Global";
491   char    SwParmsStr[]   = "ESGLParms";
492   char    tmpBuffer[DEFAULT_KEY_BUFFER_SIZE];
493   /* default value, defined in tdsatypes.h */
494   bit32   NumEsglPages = NUM_ESGL_PAGES;
495   TI_DBG6(("tdsaGetEsglPagesInfo: start \n"));
496 
497   /*
498     calls ostiGetTransportParam which parses the configuration file to get
499     parameters.
500   */
501 
502   buffer = tmpBuffer;
503   buffLen = sizeof(tmpBuffer);
504 
505   osti_memset(buffer, 0, buffLen);
506 
507 
508   if ((ostiGetTransportParam(
509                              tiRoot,
510                              globalStr,   /* key */
511                              SwParmsStr,  /* subkey1 */
512                              agNULL,      /* subkey2 */
513                              agNULL,
514                              agNULL,
515                              agNULL,      /* subkey5 */
516                              "NumESGLPg", /* valueName */
517                              buffer,
518                              buffLen,
519                              &lenRecv
520                              ) == tiSuccess) && (lenRecv != 0))
521   {
522 
523     NumEsglPages = osti_strtoul(buffer, &pLastUsedChar, 10);
524   }
525 
526   osti_memset(buffer, 0, buffLen);
527   lenRecv = 0;
528 
529   TI_DBG6(("tdsaGetEsglPagesInfo: esgl page number %d\n",NumEsglPages));
530   *pPageSize = ESGL_PAGES_SIZE;/* sizeof(agsaEsgl_t); defined in tdsatypes.h */
531   *pNumPages = NumEsglPages;
532 
533   return;
534 }
535 #endif
536 
537 
538 
539 
540 
541 
542 
543 
544