This source file includes following definitions.
- TsSetupTimeOut
- TsInactTimeout
- RxPktPendingTimeout
- TsAddBaProcess
- ResetTsCommonInfo
- ResetTxTsEntry
- ResetRxTsEntry
- TSInitialize
- AdmitTS
- SearchAdmitTRStream
- MakeTSEntry
- GetTs
- RemoveTsEntry
- RemovePeerTS
- RemoveAllTS
- TsStartAddBaProcess
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7 #include "rtllib.h"
8 #include <linux/etherdevice.h>
9 #include "rtl819x_TS.h"
10
11 static void TsSetupTimeOut(struct timer_list *unused)
12 {
13 }
14
15 static void TsInactTimeout(struct timer_list *unused)
16 {
17 }
18
19 static void RxPktPendingTimeout(struct timer_list *t)
20 {
21 struct rx_ts_record *pRxTs = from_timer(pRxTs, t,
22 RxPktPendingTimer);
23 struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
24 RxTsRecord[pRxTs->num]);
25
26 struct rx_reorder_entry *pReorderEntry = NULL;
27
28 unsigned long flags = 0;
29 u8 index = 0;
30 bool bPktInBuf = false;
31
32 spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
33 if (pRxTs->RxTimeoutIndicateSeq != 0xffff) {
34 while (!list_empty(&pRxTs->RxPendingPktList)) {
35 pReorderEntry = (struct rx_reorder_entry *)
36 list_entry(pRxTs->RxPendingPktList.prev,
37 struct rx_reorder_entry, List);
38 if (index == 0)
39 pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
40
41 if (SN_LESS(pReorderEntry->SeqNum,
42 pRxTs->RxIndicateSeq) ||
43 SN_EQUAL(pReorderEntry->SeqNum,
44 pRxTs->RxIndicateSeq)) {
45 list_del_init(&pReorderEntry->List);
46
47 if (SN_EQUAL(pReorderEntry->SeqNum,
48 pRxTs->RxIndicateSeq))
49 pRxTs->RxIndicateSeq =
50 (pRxTs->RxIndicateSeq + 1) % 4096;
51
52 netdev_dbg(ieee->dev,
53 "%s(): Indicate SeqNum: %d\n",
54 __func__, pReorderEntry->SeqNum);
55 ieee->stats_IndicateArray[index] =
56 pReorderEntry->prxb;
57 index++;
58
59 list_add_tail(&pReorderEntry->List,
60 &ieee->RxReorder_Unused_List);
61 } else {
62 bPktInBuf = true;
63 break;
64 }
65 }
66 }
67
68 if (index > 0) {
69 pRxTs->RxTimeoutIndicateSeq = 0xffff;
70
71 if (index > REORDER_WIN_SIZE) {
72 netdev_warn(ieee->dev,
73 "%s(): Rx Reorder struct buffer full\n",
74 __func__);
75 spin_unlock_irqrestore(&(ieee->reorder_spinlock),
76 flags);
77 return;
78 }
79 rtllib_indicate_packets(ieee, ieee->stats_IndicateArray, index);
80 bPktInBuf = false;
81 }
82
83 if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
84 pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
85 mod_timer(&pRxTs->RxPktPendingTimer, jiffies +
86 msecs_to_jiffies(ieee->pHTInfo->RxReorderPendingTime)
87 );
88 }
89 spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
90 }
91
92 static void TsAddBaProcess(struct timer_list *t)
93 {
94 struct tx_ts_record *pTxTs = from_timer(pTxTs, t, TsAddBaTimer);
95 u8 num = pTxTs->num;
96 struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
97 TxTsRecord[num]);
98
99 TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
100 netdev_dbg(ieee->dev, "%s(): ADDBA Req is started\n", __func__);
101 }
102
103 static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
104 {
105 eth_zero_addr(pTsCommonInfo->Addr);
106 memset(&pTsCommonInfo->TSpec, 0, sizeof(union tspec_body));
107 memset(&pTsCommonInfo->TClass, 0, sizeof(union qos_tclas)*TCLAS_NUM);
108 pTsCommonInfo->TClasProc = 0;
109 pTsCommonInfo->TClasNum = 0;
110 }
111
112 static void ResetTxTsEntry(struct tx_ts_record *pTS)
113 {
114 ResetTsCommonInfo(&pTS->TsCommonInfo);
115 pTS->TxCurSeq = 0;
116 pTS->bAddBaReqInProgress = false;
117 pTS->bAddBaReqDelayed = false;
118 pTS->bUsingBa = false;
119 pTS->bDisable_AddBa = false;
120 ResetBaEntry(&pTS->TxAdmittedBARecord);
121 ResetBaEntry(&pTS->TxPendingBARecord);
122 }
123
124 static void ResetRxTsEntry(struct rx_ts_record *pTS)
125 {
126 ResetTsCommonInfo(&pTS->TsCommonInfo);
127 pTS->RxIndicateSeq = 0xffff;
128 pTS->RxTimeoutIndicateSeq = 0xffff;
129 ResetBaEntry(&pTS->RxAdmittedBARecord);
130 }
131
132 void TSInitialize(struct rtllib_device *ieee)
133 {
134 struct tx_ts_record *pTxTS = ieee->TxTsRecord;
135 struct rx_ts_record *pRxTS = ieee->RxTsRecord;
136 struct rx_reorder_entry *pRxReorderEntry = ieee->RxReorderEntry;
137 u8 count = 0;
138
139 netdev_vdbg(ieee->dev, "%s()\n", __func__);
140 INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
141 INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
142 INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
143
144 for (count = 0; count < TOTAL_TS_NUM; count++) {
145 pTxTS->num = count;
146 timer_setup(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
147 0);
148
149 timer_setup(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
150 0);
151
152 timer_setup(&pTxTS->TsAddBaTimer, TsAddBaProcess, 0);
153
154 timer_setup(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
155 0);
156 timer_setup(&pTxTS->TxAdmittedBARecord.Timer,
157 TxBaInactTimeout, 0);
158
159 ResetTxTsEntry(pTxTS);
160 list_add_tail(&pTxTS->TsCommonInfo.List,
161 &ieee->Tx_TS_Unused_List);
162 pTxTS++;
163 }
164
165 INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
166 INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
167 INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
168 for (count = 0; count < TOTAL_TS_NUM; count++) {
169 pRxTS->num = count;
170 INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
171
172 timer_setup(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
173 0);
174
175 timer_setup(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
176 0);
177
178 timer_setup(&pRxTS->RxAdmittedBARecord.Timer,
179 RxBaInactTimeout, 0);
180
181 timer_setup(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout, 0);
182
183 ResetRxTsEntry(pRxTS);
184 list_add_tail(&pRxTS->TsCommonInfo.List,
185 &ieee->Rx_TS_Unused_List);
186 pRxTS++;
187 }
188 INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
189 for (count = 0; count < REORDER_ENTRY_NUM; count++) {
190 list_add_tail(&pRxReorderEntry->List,
191 &ieee->RxReorder_Unused_List);
192 if (count == (REORDER_ENTRY_NUM-1))
193 break;
194 pRxReorderEntry = &ieee->RxReorderEntry[count+1];
195 }
196
197 }
198
199 static void AdmitTS(struct rtllib_device *ieee,
200 struct ts_common_info *pTsCommonInfo, u32 InactTime)
201 {
202 del_timer_sync(&pTsCommonInfo->SetupTimer);
203 del_timer_sync(&pTsCommonInfo->InactTimer);
204
205 if (InactTime != 0)
206 mod_timer(&pTsCommonInfo->InactTimer, jiffies +
207 msecs_to_jiffies(InactTime));
208 }
209
210 static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
211 u8 *Addr, u8 TID,
212 enum tr_select TxRxSelect)
213 {
214 u8 dir;
215 bool search_dir[4] = {0};
216 struct list_head *psearch_list;
217 struct ts_common_info *pRet = NULL;
218
219 if (ieee->iw_mode == IW_MODE_MASTER) {
220 if (TxRxSelect == TX_DIR) {
221 search_dir[DIR_DOWN] = true;
222 search_dir[DIR_BI_DIR] = true;
223 } else {
224 search_dir[DIR_UP] = true;
225 search_dir[DIR_BI_DIR] = true;
226 }
227 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
228 if (TxRxSelect == TX_DIR)
229 search_dir[DIR_UP] = true;
230 else
231 search_dir[DIR_DOWN] = true;
232 } else {
233 if (TxRxSelect == TX_DIR) {
234 search_dir[DIR_UP] = true;
235 search_dir[DIR_BI_DIR] = true;
236 search_dir[DIR_DIRECT] = true;
237 } else {
238 search_dir[DIR_DOWN] = true;
239 search_dir[DIR_BI_DIR] = true;
240 search_dir[DIR_DIRECT] = true;
241 }
242 }
243
244 if (TxRxSelect == TX_DIR)
245 psearch_list = &ieee->Tx_TS_Admit_List;
246 else
247 psearch_list = &ieee->Rx_TS_Admit_List;
248
249 for (dir = 0; dir <= DIR_BI_DIR; dir++) {
250 if (!search_dir[dir])
251 continue;
252 list_for_each_entry(pRet, psearch_list, List) {
253 if (memcmp(pRet->Addr, Addr, 6) == 0 &&
254 pRet->TSpec.f.TSInfo.field.ucTSID == TID &&
255 pRet->TSpec.f.TSInfo.field.ucDirection == dir)
256 break;
257
258 }
259 if (&pRet->List != psearch_list)
260 break;
261 }
262
263 if (pRet && &pRet->List != psearch_list)
264 return pRet;
265 return NULL;
266 }
267
268 static void MakeTSEntry(struct ts_common_info *pTsCommonInfo, u8 *Addr,
269 union tspec_body *pTSPEC, union qos_tclas *pTCLAS,
270 u8 TCLAS_Num, u8 TCLAS_Proc)
271 {
272 u8 count;
273
274 if (pTsCommonInfo == NULL)
275 return;
276
277 memcpy(pTsCommonInfo->Addr, Addr, 6);
278
279 if (pTSPEC != NULL)
280 memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC,
281 sizeof(union tspec_body));
282
283 for (count = 0; count < TCLAS_Num; count++)
284 memcpy((u8 *)(&(pTsCommonInfo->TClass[count])),
285 (u8 *)pTCLAS, sizeof(union qos_tclas));
286
287 pTsCommonInfo->TClasProc = TCLAS_Proc;
288 pTsCommonInfo->TClasNum = TCLAS_Num;
289 }
290
291 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
292 u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
293 {
294 u8 UP = 0;
295 union tspec_body TSpec;
296 union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
297 struct list_head *pUnusedList;
298 struct list_head *pAddmitList;
299 enum direction_value Dir;
300
301 if (is_multicast_ether_addr(Addr)) {
302 netdev_warn(ieee->dev, "Get TS for Broadcast or Multicast\n");
303 return false;
304 }
305 if (ieee->current_network.qos_data.supported == 0) {
306 UP = 0;
307 } else {
308 switch (TID) {
309 case 0:
310 case 3:
311 UP = 0;
312 break;
313 case 1:
314 case 2:
315 UP = 2;
316 break;
317 case 4:
318 case 5:
319 UP = 5;
320 break;
321 case 6:
322 case 7:
323 UP = 7;
324 break;
325 default:
326 netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
327 __func__, TID);
328 return false;
329 }
330 }
331
332 *ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
333 if (*ppTS != NULL)
334 return true;
335
336 if (!bAddNewTs) {
337 netdev_dbg(ieee->dev, "add new TS failed(tid:%d)\n", UP);
338 return false;
339 }
340
341 pUnusedList = (TxRxSelect == TX_DIR) ?
342 (&ieee->Tx_TS_Unused_List) :
343 (&ieee->Rx_TS_Unused_List);
344
345 pAddmitList = (TxRxSelect == TX_DIR) ?
346 (&ieee->Tx_TS_Admit_List) :
347 (&ieee->Rx_TS_Admit_List);
348
349 Dir = (ieee->iw_mode == IW_MODE_MASTER) ?
350 ((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
351 ((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
352
353 if (!list_empty(pUnusedList)) {
354 (*ppTS) = list_entry(pUnusedList->next,
355 struct ts_common_info, List);
356 list_del_init(&(*ppTS)->List);
357 if (TxRxSelect == TX_DIR) {
358 struct tx_ts_record *tmp =
359 container_of(*ppTS,
360 struct tx_ts_record,
361 TsCommonInfo);
362 ResetTxTsEntry(tmp);
363 } else {
364 struct rx_ts_record *tmp =
365 container_of(*ppTS,
366 struct rx_ts_record,
367 TsCommonInfo);
368 ResetRxTsEntry(tmp);
369 }
370
371 netdev_dbg(ieee->dev,
372 "to init current TS, UP:%d, Dir:%d, addr: %pM ppTs=%p\n",
373 UP, Dir, Addr, *ppTS);
374 pTSInfo->field.ucTrafficType = 0;
375 pTSInfo->field.ucTSID = UP;
376 pTSInfo->field.ucDirection = Dir;
377 pTSInfo->field.ucAccessPolicy = 1;
378 pTSInfo->field.ucAggregation = 0;
379 pTSInfo->field.ucPSB = 0;
380 pTSInfo->field.ucUP = UP;
381 pTSInfo->field.ucTSInfoAckPolicy = 0;
382 pTSInfo->field.ucSchedule = 0;
383
384 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
385 AdmitTS(ieee, *ppTS, 0);
386 list_add_tail(&((*ppTS)->List), pAddmitList);
387
388 return true;
389 }
390
391 netdev_warn(ieee->dev,
392 "There is not enough dir=%d(0=up down=1) TS record to be used!",
393 Dir);
394 return false;
395 }
396
397 static void RemoveTsEntry(struct rtllib_device *ieee,
398 struct ts_common_info *pTs, enum tr_select TxRxSelect)
399 {
400 del_timer_sync(&pTs->SetupTimer);
401 del_timer_sync(&pTs->InactTimer);
402 TsInitDelBA(ieee, pTs, TxRxSelect);
403
404 if (TxRxSelect == RX_DIR) {
405 struct rx_reorder_entry *pRxReorderEntry;
406 struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs;
407
408 if (timer_pending(&pRxTS->RxPktPendingTimer))
409 del_timer_sync(&pRxTS->RxPktPendingTimer);
410
411 while (!list_empty(&pRxTS->RxPendingPktList)) {
412 pRxReorderEntry = (struct rx_reorder_entry *)
413 list_entry(pRxTS->RxPendingPktList.prev,
414 struct rx_reorder_entry, List);
415 netdev_dbg(ieee->dev, "%s(): Delete SeqNum %d!\n",
416 __func__, pRxReorderEntry->SeqNum);
417 list_del_init(&pRxReorderEntry->List);
418 {
419 int i = 0;
420 struct rtllib_rxb *prxb = pRxReorderEntry->prxb;
421
422 if (unlikely(!prxb))
423 return;
424 for (i = 0; i < prxb->nr_subframes; i++)
425 dev_kfree_skb(prxb->subframes[i]);
426 kfree(prxb);
427 prxb = NULL;
428 }
429 list_add_tail(&pRxReorderEntry->List,
430 &ieee->RxReorder_Unused_List);
431 }
432 } else {
433 struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs;
434
435 del_timer_sync(&pTxTS->TsAddBaTimer);
436 }
437 }
438
439 void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
440 {
441 struct ts_common_info *pTS, *pTmpTS;
442
443 netdev_info(ieee->dev, "===========>RemovePeerTS, %pM\n", Addr);
444
445 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
446 if (memcmp(pTS->Addr, Addr, 6) == 0) {
447 RemoveTsEntry(ieee, pTS, TX_DIR);
448 list_del_init(&pTS->List);
449 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
450 }
451 }
452
453 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
454 if (memcmp(pTS->Addr, Addr, 6) == 0) {
455 netdev_info(ieee->dev,
456 "====>remove Tx_TS_admin_list\n");
457 RemoveTsEntry(ieee, pTS, TX_DIR);
458 list_del_init(&pTS->List);
459 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
460 }
461 }
462
463 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
464 if (memcmp(pTS->Addr, Addr, 6) == 0) {
465 RemoveTsEntry(ieee, pTS, RX_DIR);
466 list_del_init(&pTS->List);
467 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
468 }
469 }
470
471 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
472 if (memcmp(pTS->Addr, Addr, 6) == 0) {
473 RemoveTsEntry(ieee, pTS, RX_DIR);
474 list_del_init(&pTS->List);
475 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
476 }
477 }
478 }
479 EXPORT_SYMBOL(RemovePeerTS);
480
481 void RemoveAllTS(struct rtllib_device *ieee)
482 {
483 struct ts_common_info *pTS, *pTmpTS;
484
485 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
486 RemoveTsEntry(ieee, pTS, TX_DIR);
487 list_del_init(&pTS->List);
488 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
489 }
490
491 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
492 RemoveTsEntry(ieee, pTS, TX_DIR);
493 list_del_init(&pTS->List);
494 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
495 }
496
497 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
498 RemoveTsEntry(ieee, pTS, RX_DIR);
499 list_del_init(&pTS->List);
500 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
501 }
502
503 list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
504 RemoveTsEntry(ieee, pTS, RX_DIR);
505 list_del_init(&pTS->List);
506 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
507 }
508 }
509
510 void TsStartAddBaProcess(struct rtllib_device *ieee, struct tx_ts_record *pTxTS)
511 {
512 if (pTxTS->bAddBaReqInProgress == false) {
513 pTxTS->bAddBaReqInProgress = true;
514
515 if (pTxTS->bAddBaReqDelayed) {
516 netdev_dbg(ieee->dev, "Start ADDBA after 60 sec!!\n");
517 mod_timer(&pTxTS->TsAddBaTimer, jiffies +
518 msecs_to_jiffies(TS_ADDBA_DELAY));
519 } else {
520 netdev_dbg(ieee->dev, "Immediately Start ADDBA\n");
521 mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
522 }
523 } else
524 netdev_dbg(ieee->dev, "BA timer is already added\n");
525 }