drivers/staging/rtl8192e/rtl819x_TSProc.c

   1 /******************************************************************************
   2  * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
   3  *
   4  * This program is distributed in the hope that it will be useful, but WITHOUT
   5  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   6  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
   7  * more details.
   8  *
   9  * You should have received a copy of the GNU General Public License along with
  10  * this program; if not, write to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  12  *
  13  * The full GNU General Public License is included in this distribution in the
  14  * file called LICENSE.
  15  *
  16  * Contact Information:
  17  * wlanfae <wlanfae@realtek.com>
  18 ******************************************************************************/
  19 #include "rtllib.h"
  20 #include <linux/etherdevice.h>
  21 #include "rtl819x_TS.h"
  22
  23 static void TsSetupTimeOut(unsigned long data)
  24 {
  25 }
  26
  27 static void TsInactTimeout(unsigned long data)
  28 {
  29 }
  30
  31 static void RxPktPendingTimeout(unsigned long data)
  32 {
  33         struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
  34         struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
  35                                                   RxTsRecord[pRxTs->num]);
  36
  37         struct rx_reorder_entry *pReorderEntry = NULL;
  38
  39         unsigned long flags = 0;
  40         u8 index = 0;
  41         bool bPktInBuf = false;
  42
  43         spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
  44         if (pRxTs->RxTimeoutIndicateSeq != 0xffff) {
  45                 while (!list_empty(&pRxTs->RxPendingPktList)) {
  46                         pReorderEntry = (struct rx_reorder_entry *)
  47                                         list_entry(pRxTs->RxPendingPktList.prev,
  48                                         struct rx_reorder_entry, List);
  49                         if (index == 0)
  50                                 pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
  51
  52                         if (SN_LESS(pReorderEntry->SeqNum,
  53                                     pRxTs->RxIndicateSeq) ||
  54                             SN_EQUAL(pReorderEntry->SeqNum,
  55                                      pRxTs->RxIndicateSeq)) {
  56                                 list_del_init(&pReorderEntry->List);
  57
  58                                 if (SN_EQUAL(pReorderEntry->SeqNum,
  59                                     pRxTs->RxIndicateSeq))
  60                                         pRxTs->RxIndicateSeq =
  61                                               (pRxTs->RxIndicateSeq + 1) % 4096;
  62
  63                                 netdev_dbg(ieee->dev,
  64                                            "%s(): Indicate SeqNum: %d\n",
  65                                            __func__, pReorderEntry->SeqNum);
  66                                 ieee->stats_IndicateArray[index] =
  67                                                          pReorderEntry->prxb;
  68                                 index++;
  69
  70                                 list_add_tail(&pReorderEntry->List,
  71                                               &ieee->RxReorder_Unused_List);
  72                         } else {
  73                                 bPktInBuf = true;
  74                                 break;
  75                         }
  76                 }
  77         }
  78
  79         if (index > 0) {
  80                 pRxTs->RxTimeoutIndicateSeq = 0xffff;
  81
  82                 if (index > REORDER_WIN_SIZE) {
  83                         netdev_warn(ieee->dev,
  84                                     "%s(): Rx Reorder struct buffer full\n",
  85                                     __func__);
  86                         spin_unlock_irqrestore(&(ieee->reorder_spinlock),
  87                                                flags);
  88                         return;
  89                 }
  90                 rtllib_indicate_packets(ieee, ieee->stats_IndicateArray, index);
  91                 bPktInBuf = false;
  92         }
  93
  94         if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
  95                 pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
  96                 mod_timer(&pRxTs->RxPktPendingTimer,  jiffies +
  97                           msecs_to_jiffies(ieee->pHTInfo->RxReorderPendingTime)
  98                           );
  99         }
 100         spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
 101 }
 102
 103 static void TsAddBaProcess(unsigned long data)
 104 {
 105         struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
 106         u8 num = pTxTs->num;
 107         struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
 108                                      TxTsRecord[num]);
 109
 110         TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
 111         netdev_dbg(ieee->dev, "%s(): ADDBA Req is started\n", __func__);
 112 }
 113
 114 static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
 115 {
 116         eth_zero_addr(pTsCommonInfo->Addr);
 117         memset(&pTsCommonInfo->TSpec, 0, sizeof(union tspec_body));
 118         memset(&pTsCommonInfo->TClass, 0, sizeof(union qos_tclas)*TCLAS_NUM);
 119         pTsCommonInfo->TClasProc = 0;
 120         pTsCommonInfo->TClasNum = 0;
 121 }
 122
 123 static void ResetTxTsEntry(struct tx_ts_record *pTS)
 124 {
 125         ResetTsCommonInfo(&pTS->TsCommonInfo);
 126         pTS->TxCurSeq = 0;
 127         pTS->bAddBaReqInProgress = false;
 128         pTS->bAddBaReqDelayed = false;
 129         pTS->bUsingBa = false;
 130         pTS->bDisable_AddBa = false;
 131         ResetBaEntry(&pTS->TxAdmittedBARecord);
 132         ResetBaEntry(&pTS->TxPendingBARecord);
 133 }
 134
 135 static void ResetRxTsEntry(struct rx_ts_record *pTS)
 136 {
 137         ResetTsCommonInfo(&pTS->TsCommonInfo);
 138         pTS->RxIndicateSeq = 0xffff;
 139         pTS->RxTimeoutIndicateSeq = 0xffff;
 140         ResetBaEntry(&pTS->RxAdmittedBARecord);
 141 }
 142
 143 void TSInitialize(struct rtllib_device *ieee)
 144 {
 145         struct tx_ts_record *pTxTS  = ieee->TxTsRecord;
 146         struct rx_ts_record *pRxTS  = ieee->RxTsRecord;
 147         struct rx_reorder_entry *pRxReorderEntry = ieee->RxReorderEntry;
 148         u8                              count = 0;
 149
 150         netdev_vdbg(ieee->dev, "%s()\n", __func__);
 151         INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
 152         INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
 153         INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
 154
 155         for (count = 0; count < TOTAL_TS_NUM; count++) {
 156                 pTxTS->num = count;
 157                 setup_timer(&pTxTS->TsCommonInfo.SetupTimer,
 158                             TsSetupTimeOut,
 159                             (unsigned long) pTxTS);
 160
 161                 setup_timer(&pTxTS->TsCommonInfo.InactTimer,
 162                             TsInactTimeout,
 163                             (unsigned long) pTxTS);
 164
 165                 setup_timer(&pTxTS->TsAddBaTimer,
 166                             TsAddBaProcess,
 167                             (unsigned long) pTxTS);
 168
 169                 setup_timer(&pTxTS->TxPendingBARecord.Timer,
 170                             BaSetupTimeOut,
 171                             (unsigned long) pTxTS);
 172                 setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
 173                             TxBaInactTimeout,
 174                             (unsigned long) pTxTS);
 175
 176                 ResetTxTsEntry(pTxTS);
 177                 list_add_tail(&pTxTS->TsCommonInfo.List,
 178                                 &ieee->Tx_TS_Unused_List);
 179                 pTxTS++;
 180         }
 181
 182         INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
 183         INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
 184         INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
 185         for (count = 0; count < TOTAL_TS_NUM; count++) {
 186                 pRxTS->num = count;
 187                 INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
 188
 189                 setup_timer(&pRxTS->TsCommonInfo.SetupTimer,
 190                             TsSetupTimeOut,
 191                             (unsigned long) pRxTS);
 192
 193                 setup_timer(&pRxTS->TsCommonInfo.InactTimer,
 194                             TsInactTimeout,
 195                             (unsigned long) pRxTS);
 196
 197                 setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
 198                             RxBaInactTimeout,
 199                             (unsigned long) pRxTS);
 200
 201                 setup_timer(&pRxTS->RxPktPendingTimer,
 202                             RxPktPendingTimeout,
 203                             (unsigned long) pRxTS);
 204
 205                 ResetRxTsEntry(pRxTS);
 206                 list_add_tail(&pRxTS->TsCommonInfo.List,
 207                               &ieee->Rx_TS_Unused_List);
 208                 pRxTS++;
 209         }
 210         INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
 211         for (count = 0; count < REORDER_ENTRY_NUM; count++) {
 212                 list_add_tail(&pRxReorderEntry->List,
 213                               &ieee->RxReorder_Unused_List);
 214                 if (count == (REORDER_ENTRY_NUM-1))
 215                         break;
 216                 pRxReorderEntry = &ieee->RxReorderEntry[count+1];
 217         }
 218
 219 }
 220
 221 static void AdmitTS(struct rtllib_device *ieee,
 222                     struct ts_common_info *pTsCommonInfo, u32 InactTime)
 223 {
 224         del_timer_sync(&pTsCommonInfo->SetupTimer);
 225         del_timer_sync(&pTsCommonInfo->InactTimer);
 226
 227         if (InactTime != 0)
 228                 mod_timer(&pTsCommonInfo->InactTimer, jiffies +
 229                           msecs_to_jiffies(InactTime));
 230 }
 231
 232 static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
 233                                                   u8 *Addr, u8 TID,
 234                                                   enum tr_select TxRxSelect)
 235 {
 236         u8      dir;
 237         bool    search_dir[4] = {0};
 238         struct list_head *psearch_list;
 239         struct ts_common_info *pRet = NULL;
 240
 241         if (ieee->iw_mode == IW_MODE_MASTER) {
 242                 if (TxRxSelect == TX_DIR) {
 243                         search_dir[DIR_DOWN] = true;
 244                         search_dir[DIR_BI_DIR] = true;
 245                 } else {
 246                         search_dir[DIR_UP] = true;
 247                         search_dir[DIR_BI_DIR] = true;
 248                 }
 249         } else if (ieee->iw_mode == IW_MODE_ADHOC) {
 250                 if (TxRxSelect == TX_DIR)
 251                         search_dir[DIR_UP] = true;
 252                 else
 253                         search_dir[DIR_DOWN] = true;
 254         } else {
 255                 if (TxRxSelect == TX_DIR) {
 256                         search_dir[DIR_UP] = true;
 257                         search_dir[DIR_BI_DIR] = true;
 258                         search_dir[DIR_DIRECT] = true;
 259                 } else {
 260                         search_dir[DIR_DOWN] = true;
 261                         search_dir[DIR_BI_DIR] = true;
 262                         search_dir[DIR_DIRECT] = true;
 263                 }
 264         }
 265
 266         if (TxRxSelect == TX_DIR)
 267                 psearch_list = &ieee->Tx_TS_Admit_List;
 268         else
 269                 psearch_list = &ieee->Rx_TS_Admit_List;
 270
 271         for (dir = 0; dir <= DIR_BI_DIR; dir++) {
 272                 if (!search_dir[dir])
 273                         continue;
 274                 list_for_each_entry(pRet, psearch_list, List) {
 275                         if (memcmp(pRet->Addr, Addr, 6) == 0 &&
 276                             pRet->TSpec.f.TSInfo.field.ucTSID == TID &&
 277                             pRet->TSpec.f.TSInfo.field.ucDirection == dir)
 278                                 break;
 279
 280                 }
 281                 if (&pRet->List  != psearch_list)
 282                         break;
 283         }
 284
 285         if (pRet && &pRet->List  != psearch_list)
 286                 return pRet;
 287         return NULL;
 288 }
 289
 290 static void MakeTSEntry(struct ts_common_info *pTsCommonInfo, u8 *Addr,
 291                         union tspec_body *pTSPEC, union qos_tclas *pTCLAS,
 292                         u8 TCLAS_Num, u8 TCLAS_Proc)
 293 {
 294         u8      count;
 295
 296         if (pTsCommonInfo == NULL)
 297                 return;
 298
 299         memcpy(pTsCommonInfo->Addr, Addr, 6);
 300
 301         if (pTSPEC != NULL)
 302                 memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC,
 303                         sizeof(union tspec_body));
 304
 305         for (count = 0; count < TCLAS_Num; count++)
 306                 memcpy((u8 *)(&(pTsCommonInfo->TClass[count])),
 307                        (u8 *)pTCLAS, sizeof(union qos_tclas));
 308
 309         pTsCommonInfo->TClasProc = TCLAS_Proc;
 310         pTsCommonInfo->TClasNum = TCLAS_Num;
 311 }
 312
 313 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 314            u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
 315 {
 316         u8      UP = 0;
 317         union tspec_body TSpec;
 318         union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
 319         struct list_head *pUnusedList;
 320         struct list_head *pAddmitList;
 321         enum direction_value Dir;
 322
 323         if (is_multicast_ether_addr(Addr)) {
 324                 netdev_warn(ieee->dev, "Get TS for Broadcast or Multicast\n");
 325                 return false;
 326         }
 327         if (ieee->current_network.qos_data.supported == 0) {
 328                 UP = 0;
 329         } else {
 330                 if (!IsACValid(TID)) {
 331                         netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
 332                                     __func__, TID);
 333                         return false;
 334                 }
 335
 336                 switch (TID) {
 337                 case 0:
 338                 case 3:
 339                         UP = 0;
 340                         break;
 341                 case 1:
 342                 case 2:
 343                         UP = 2;
 344                         break;
 345                 case 4:
 346                 case 5:
 347                         UP = 5;
 348                         break;
 349                 case 6:
 350                 case 7:
 351                         UP = 7;
 352                         break;
 353                 }
 354         }
 355
 356         *ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
 357         if (*ppTS != NULL)
 358                 return true;
 359
 360         if (!bAddNewTs) {
 361                 netdev_dbg(ieee->dev, "add new TS failed(tid:%d)\n", UP);
 362                 return false;
 363         }
 364
 365         pUnusedList = (TxRxSelect == TX_DIR) ?
 366                                 (&ieee->Tx_TS_Unused_List) :
 367                                 (&ieee->Rx_TS_Unused_List);
 368
 369         pAddmitList = (TxRxSelect == TX_DIR) ?
 370                                 (&ieee->Tx_TS_Admit_List) :
 371                                 (&ieee->Rx_TS_Admit_List);
 372
 373         Dir = (ieee->iw_mode == IW_MODE_MASTER) ?
 374                                 ((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
 375                                 ((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
 376
 377         if (!list_empty(pUnusedList)) {
 378                 (*ppTS) = list_entry(pUnusedList->next,
 379                           struct ts_common_info, List);
 380                 list_del_init(&(*ppTS)->List);
 381                 if (TxRxSelect == TX_DIR) {
 382                         struct tx_ts_record *tmp =
 383                                 container_of(*ppTS,
 384                                 struct tx_ts_record,
 385                                 TsCommonInfo);
 386                         ResetTxTsEntry(tmp);
 387                 } else {
 388                         struct rx_ts_record *tmp =
 389                                  container_of(*ppTS,
 390                                  struct rx_ts_record,
 391                                  TsCommonInfo);
 392                         ResetRxTsEntry(tmp);
 393                 }
 394
 395                 netdev_dbg(ieee->dev,
 396                            "to init current TS, UP:%d, Dir:%d, addr: %pM ppTs=%p\n",
 397                            UP, Dir, Addr, *ppTS);
 398                 pTSInfo->field.ucTrafficType = 0;
 399                 pTSInfo->field.ucTSID = UP;
 400                 pTSInfo->field.ucDirection = Dir;
 401                 pTSInfo->field.ucAccessPolicy = 1;
 402                 pTSInfo->field.ucAggregation = 0;
 403                 pTSInfo->field.ucPSB = 0;
 404                 pTSInfo->field.ucUP = UP;
 405                 pTSInfo->field.ucTSInfoAckPolicy = 0;
 406                 pTSInfo->field.ucSchedule = 0;
 407
 408                 MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
 409                 AdmitTS(ieee, *ppTS, 0);
 410                 list_add_tail(&((*ppTS)->List), pAddmitList);
 411
 412                 return true;
 413         }
 414
 415         netdev_warn(ieee->dev,
 416                     "There is not enough dir=%d(0=up down=1) TS record to be used!",
 417                     Dir);
 418         return false;
 419 }
 420
 421 static void RemoveTsEntry(struct rtllib_device *ieee,
 422                           struct ts_common_info *pTs, enum tr_select TxRxSelect)
 423 {
 424         del_timer_sync(&pTs->SetupTimer);
 425         del_timer_sync(&pTs->InactTimer);
 426         TsInitDelBA(ieee, pTs, TxRxSelect);
 427
 428         if (TxRxSelect == RX_DIR) {
 429                 struct rx_reorder_entry *pRxReorderEntry;
 430                 struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs;
 431
 432                 if (timer_pending(&pRxTS->RxPktPendingTimer))
 433                         del_timer_sync(&pRxTS->RxPktPendingTimer);
 434
 435                 while (!list_empty(&pRxTS->RxPendingPktList)) {
 436                         pRxReorderEntry = (struct rx_reorder_entry *)
 437                                         list_entry(pRxTS->RxPendingPktList.prev,
 438                                         struct rx_reorder_entry, List);
 439                         netdev_dbg(ieee->dev,  "%s(): Delete SeqNum %d!\n",
 440                                    __func__, pRxReorderEntry->SeqNum);
 441                         list_del_init(&pRxReorderEntry->List);
 442                         {
 443                                 int i = 0;
 444                                 struct rtllib_rxb *prxb = pRxReorderEntry->prxb;
 445
 446                                 if (unlikely(!prxb))
 447                                         return;
 448                                 for (i = 0; i < prxb->nr_subframes; i++)
 449                                         dev_kfree_skb(prxb->subframes[i]);
 450                                 kfree(prxb);
 451                                 prxb = NULL;
 452                         }
 453                         list_add_tail(&pRxReorderEntry->List,
 454                                       &ieee->RxReorder_Unused_List);
 455                 }
 456         } else {
 457                 struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs;
 458
 459                 del_timer_sync(&pTxTS->TsAddBaTimer);
 460         }
 461 }
 462
 463 void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
 464 {
 465         struct ts_common_info *pTS, *pTmpTS;
 466
 467         netdev_info(ieee->dev, "===========>RemovePeerTS, %pM\n", Addr);
 468
 469         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
 470                 if (memcmp(pTS->Addr, Addr, 6) == 0) {
 471                         RemoveTsEntry(ieee, pTS, TX_DIR);
 472                         list_del_init(&pTS->List);
 473                         list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
 474                 }
 475         }
 476
 477         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
 478                 if (memcmp(pTS->Addr, Addr, 6) == 0) {
 479                         netdev_info(ieee->dev,
 480                                     "====>remove Tx_TS_admin_list\n");
 481                         RemoveTsEntry(ieee, pTS, TX_DIR);
 482                         list_del_init(&pTS->List);
 483                         list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
 484                 }
 485         }
 486
 487         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
 488                 if (memcmp(pTS->Addr, Addr, 6) == 0) {
 489                         RemoveTsEntry(ieee, pTS, RX_DIR);
 490                         list_del_init(&pTS->List);
 491                         list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
 492                 }
 493         }
 494
 495         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
 496                 if (memcmp(pTS->Addr, Addr, 6) == 0) {
 497                         RemoveTsEntry(ieee, pTS, RX_DIR);
 498                         list_del_init(&pTS->List);
 499                         list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
 500                 }
 501         }
 502 }
 503 EXPORT_SYMBOL(RemovePeerTS);
 504
 505 void RemoveAllTS(struct rtllib_device *ieee)
 506 {
 507         struct ts_common_info *pTS, *pTmpTS;
 508
 509         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
 510                 RemoveTsEntry(ieee, pTS, TX_DIR);
 511                 list_del_init(&pTS->List);
 512                 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
 513         }
 514
 515         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
 516                 RemoveTsEntry(ieee, pTS, TX_DIR);
 517                 list_del_init(&pTS->List);
 518                 list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
 519         }
 520
 521         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
 522                 RemoveTsEntry(ieee, pTS, RX_DIR);
 523                 list_del_init(&pTS->List);
 524                 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
 525         }
 526
 527         list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
 528                 RemoveTsEntry(ieee, pTS, RX_DIR);
 529                 list_del_init(&pTS->List);
 530                 list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
 531         }
 532 }
 533
 534 void TsStartAddBaProcess(struct rtllib_device *ieee, struct tx_ts_record *pTxTS)
 535 {
 536         if (pTxTS->bAddBaReqInProgress == false) {
 537                 pTxTS->bAddBaReqInProgress = true;
 538
 539                 if (pTxTS->bAddBaReqDelayed) {
 540                         netdev_dbg(ieee->dev, "Start ADDBA after 60 sec!!\n");
 541                         mod_timer(&pTxTS->TsAddBaTimer, jiffies +
 542                                   msecs_to_jiffies(TS_ADDBA_DELAY));
 543                 } else {
 544                         netdev_dbg(ieee->dev, "Immediately Start ADDBA\n");
 545                         mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
 546                 }
 547         } else
 548                 netdev_dbg(ieee->dev, "BA timer is already added\n");
 549 }