555 lines
15 KiB
C
555 lines
15 KiB
C
/******************************************************************************
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* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* wlanfae <wlanfae@realtek.com>
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******************************************************************************/
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#include "rtllib.h"
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#include <linux/etherdevice.h>
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#include "rtl819x_TS.h"
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static void TsSetupTimeOut(unsigned long data)
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{
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}
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static void TsInactTimeout(unsigned long data)
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{
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}
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static void RxPktPendingTimeout(unsigned long data)
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{
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struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
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struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
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RxTsRecord[pRxTs->num]);
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struct rx_reorder_entry *pReorderEntry = NULL;
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unsigned long flags = 0;
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u8 index = 0;
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bool bPktInBuf = false;
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spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
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if (pRxTs->RxTimeoutIndicateSeq != 0xffff) {
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while (!list_empty(&pRxTs->RxPendingPktList)) {
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pReorderEntry = (struct rx_reorder_entry *)
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list_entry(pRxTs->RxPendingPktList.prev,
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struct rx_reorder_entry, List);
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if (index == 0)
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pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
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if (SN_LESS(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq) ||
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SN_EQUAL(pReorderEntry->SeqNum, pRxTs->RxIndicateSeq)) {
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list_del_init(&pReorderEntry->List);
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if (SN_EQUAL(pReorderEntry->SeqNum,
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pRxTs->RxIndicateSeq))
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pRxTs->RxIndicateSeq =
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(pRxTs->RxIndicateSeq + 1) % 4096;
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RTLLIB_DEBUG(RTLLIB_DL_REORDER, "%s(): Indicate"
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" SeqNum: %d\n", __func__,
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pReorderEntry->SeqNum);
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ieee->stats_IndicateArray[index] =
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pReorderEntry->prxb;
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index++;
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list_add_tail(&pReorderEntry->List,
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&ieee->RxReorder_Unused_List);
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} else {
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bPktInBuf = true;
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break;
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}
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}
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}
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if (index > 0) {
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pRxTs->RxTimeoutIndicateSeq = 0xffff;
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if (index > REORDER_WIN_SIZE) {
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RTLLIB_DEBUG(RTLLIB_DL_ERR, "RxReorderIndicatePacket():"
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" Rx Reorder struct buffer full!!\n");
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spin_unlock_irqrestore(&(ieee->reorder_spinlock),
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flags);
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return;
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}
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rtllib_indicate_packets(ieee, ieee->stats_IndicateArray, index);
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bPktInBuf = false;
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}
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if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
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pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
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mod_timer(&pRxTs->RxPktPendingTimer, jiffies +
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MSECS(ieee->pHTInfo->RxReorderPendingTime));
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}
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spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
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}
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static void TsAddBaProcess(unsigned long data)
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{
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struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
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u8 num = pTxTs->num;
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struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
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TxTsRecord[num]);
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TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
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RTLLIB_DEBUG(RTLLIB_DL_BA, "TsAddBaProcess(): ADDBA Req is "
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"started!!\n");
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}
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static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
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{
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memset(pTsCommonInfo->Addr, 0, 6);
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memset(&pTsCommonInfo->TSpec, 0, sizeof(union tspec_body));
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memset(&pTsCommonInfo->TClass, 0, sizeof(union qos_tclas)*TCLAS_NUM);
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pTsCommonInfo->TClasProc = 0;
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pTsCommonInfo->TClasNum = 0;
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}
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static void ResetTxTsEntry(struct tx_ts_record *pTS)
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{
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ResetTsCommonInfo(&pTS->TsCommonInfo);
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pTS->TxCurSeq = 0;
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pTS->bAddBaReqInProgress = false;
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pTS->bAddBaReqDelayed = false;
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pTS->bUsingBa = false;
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pTS->bDisable_AddBa = false;
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ResetBaEntry(&pTS->TxAdmittedBARecord);
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ResetBaEntry(&pTS->TxPendingBARecord);
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}
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static void ResetRxTsEntry(struct rx_ts_record *pTS)
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{
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ResetTsCommonInfo(&pTS->TsCommonInfo);
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pTS->RxIndicateSeq = 0xffff;
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pTS->RxTimeoutIndicateSeq = 0xffff;
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ResetBaEntry(&pTS->RxAdmittedBARecord);
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}
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void TSInitialize(struct rtllib_device *ieee)
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{
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struct tx_ts_record *pTxTS = ieee->TxTsRecord;
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struct rx_ts_record *pRxTS = ieee->RxTsRecord;
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struct rx_reorder_entry *pRxReorderEntry = ieee->RxReorderEntry;
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u8 count = 0;
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RTLLIB_DEBUG(RTLLIB_DL_TS, "==========>%s()\n", __func__);
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INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
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INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
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INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
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for (count = 0; count < TOTAL_TS_NUM; count++) {
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pTxTS->num = count;
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_setup_timer(&pTxTS->TsCommonInfo.SetupTimer,
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TsSetupTimeOut,
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(unsigned long) pTxTS);
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_setup_timer(&pTxTS->TsCommonInfo.InactTimer,
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TsInactTimeout,
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(unsigned long) pTxTS);
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_setup_timer(&pTxTS->TsAddBaTimer,
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TsAddBaProcess,
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(unsigned long) pTxTS);
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_setup_timer(&pTxTS->TxPendingBARecord.Timer,
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BaSetupTimeOut,
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(unsigned long) pTxTS);
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_setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
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TxBaInactTimeout,
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(unsigned long) pTxTS);
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ResetTxTsEntry(pTxTS);
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list_add_tail(&pTxTS->TsCommonInfo.List,
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&ieee->Tx_TS_Unused_List);
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pTxTS++;
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}
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INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
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INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
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INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
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for (count = 0; count < TOTAL_TS_NUM; count++) {
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pRxTS->num = count;
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INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
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_setup_timer(&pRxTS->TsCommonInfo.SetupTimer,
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TsSetupTimeOut,
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(unsigned long) pRxTS);
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_setup_timer(&pRxTS->TsCommonInfo.InactTimer,
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TsInactTimeout,
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(unsigned long) pRxTS);
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_setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
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RxBaInactTimeout,
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(unsigned long) pRxTS);
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_setup_timer(&pRxTS->RxPktPendingTimer,
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RxPktPendingTimeout,
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(unsigned long) pRxTS);
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ResetRxTsEntry(pRxTS);
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list_add_tail(&pRxTS->TsCommonInfo.List,
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&ieee->Rx_TS_Unused_List);
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pRxTS++;
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}
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INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
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for (count = 0; count < REORDER_ENTRY_NUM; count++) {
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list_add_tail(&pRxReorderEntry->List,
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&ieee->RxReorder_Unused_List);
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if (count == (REORDER_ENTRY_NUM-1))
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break;
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pRxReorderEntry = &ieee->RxReorderEntry[count+1];
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}
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}
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static void AdmitTS(struct rtllib_device *ieee,
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struct ts_common_info *pTsCommonInfo, u32 InactTime)
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{
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del_timer_sync(&pTsCommonInfo->SetupTimer);
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del_timer_sync(&pTsCommonInfo->InactTimer);
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if (InactTime != 0)
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mod_timer(&pTsCommonInfo->InactTimer, jiffies +
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MSECS(InactTime));
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}
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static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
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u8 *Addr, u8 TID,
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enum tr_select TxRxSelect)
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{
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u8 dir;
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bool search_dir[4] = {0};
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struct list_head *psearch_list;
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struct ts_common_info *pRet = NULL;
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if (ieee->iw_mode == IW_MODE_MASTER) {
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if (TxRxSelect == TX_DIR) {
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search_dir[DIR_DOWN] = true;
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search_dir[DIR_BI_DIR] = true;
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} else {
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search_dir[DIR_UP] = true;
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search_dir[DIR_BI_DIR] = true;
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}
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} else if (ieee->iw_mode == IW_MODE_ADHOC) {
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if (TxRxSelect == TX_DIR)
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search_dir[DIR_UP] = true;
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else
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search_dir[DIR_DOWN] = true;
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} else {
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if (TxRxSelect == TX_DIR) {
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search_dir[DIR_UP] = true;
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search_dir[DIR_BI_DIR] = true;
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search_dir[DIR_DIRECT] = true;
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} else {
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search_dir[DIR_DOWN] = true;
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search_dir[DIR_BI_DIR] = true;
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search_dir[DIR_DIRECT] = true;
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}
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}
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if (TxRxSelect == TX_DIR)
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psearch_list = &ieee->Tx_TS_Admit_List;
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else
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psearch_list = &ieee->Rx_TS_Admit_List;
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for (dir = 0; dir <= DIR_BI_DIR; dir++) {
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if (!search_dir[dir])
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continue;
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list_for_each_entry(pRet, psearch_list, List) {
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if (memcmp(pRet->Addr, Addr, 6) == 0)
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if (pRet->TSpec.f.TSInfo.field.ucTSID == TID)
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if (pRet->TSpec.f.TSInfo.field.ucDirection == dir)
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break;
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}
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if (&pRet->List != psearch_list)
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break;
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}
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if (pRet && &pRet->List != psearch_list)
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return pRet;
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return NULL;
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}
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static void MakeTSEntry(struct ts_common_info *pTsCommonInfo, u8 *Addr,
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union tspec_body *pTSPEC, union qos_tclas *pTCLAS,
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u8 TCLAS_Num, u8 TCLAS_Proc)
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{
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u8 count;
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if (pTsCommonInfo == NULL)
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return;
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memcpy(pTsCommonInfo->Addr, Addr, 6);
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if (pTSPEC != NULL)
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memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC,
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sizeof(union tspec_body));
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for (count = 0; count < TCLAS_Num; count++)
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memcpy((u8 *)(&(pTsCommonInfo->TClass[count])),
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(u8 *)pTCLAS, sizeof(union qos_tclas));
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pTsCommonInfo->TClasProc = TCLAS_Proc;
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pTsCommonInfo->TClasNum = TCLAS_Num;
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}
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bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
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u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
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{
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u8 UP = 0;
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if (is_multicast_ether_addr(Addr)) {
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RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR! get TS for Broadcast or "
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"Multicast\n");
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return false;
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}
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if (ieee->current_network.qos_data.supported == 0) {
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UP = 0;
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} else {
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if (!IsACValid(TID)) {
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RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR! in %s(), TID(%d) is "
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"not valid\n", __func__, TID);
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return false;
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}
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switch (TID) {
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case 0:
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case 3:
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UP = 0;
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break;
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case 1:
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case 2:
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UP = 2;
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break;
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case 4:
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case 5:
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UP = 5;
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break;
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case 6:
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case 7:
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UP = 7;
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break;
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}
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}
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*ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
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if (*ppTS != NULL) {
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return true;
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} else {
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if (!bAddNewTs) {
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RTLLIB_DEBUG(RTLLIB_DL_TS, "add new TS failed"
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"(tid:%d)\n", UP);
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return false;
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} else {
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union tspec_body TSpec;
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union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
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struct list_head *pUnusedList =
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(TxRxSelect == TX_DIR) ?
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(&ieee->Tx_TS_Unused_List) :
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(&ieee->Rx_TS_Unused_List);
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struct list_head *pAddmitList =
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(TxRxSelect == TX_DIR) ?
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(&ieee->Tx_TS_Admit_List) :
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(&ieee->Rx_TS_Admit_List);
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enum direction_value Dir =
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(ieee->iw_mode == IW_MODE_MASTER) ?
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((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
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((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
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RTLLIB_DEBUG(RTLLIB_DL_TS, "to add Ts\n");
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if (!list_empty(pUnusedList)) {
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(*ppTS) = list_entry(pUnusedList->next,
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struct ts_common_info, List);
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list_del_init(&(*ppTS)->List);
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if (TxRxSelect == TX_DIR) {
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struct tx_ts_record *tmp =
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container_of(*ppTS,
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struct tx_ts_record,
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TsCommonInfo);
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ResetTxTsEntry(tmp);
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} else {
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struct rx_ts_record *tmp =
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container_of(*ppTS,
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struct rx_ts_record,
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TsCommonInfo);
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ResetRxTsEntry(tmp);
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}
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RTLLIB_DEBUG(RTLLIB_DL_TS, "to init current TS"
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", UP:%d, Dir:%d, addr: %pM"
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" ppTs=%p\n", UP, Dir,
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Addr, *ppTS);
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pTSInfo->field.ucTrafficType = 0;
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pTSInfo->field.ucTSID = UP;
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pTSInfo->field.ucDirection = Dir;
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pTSInfo->field.ucAccessPolicy = 1;
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pTSInfo->field.ucAggregation = 0;
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pTSInfo->field.ucPSB = 0;
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pTSInfo->field.ucUP = UP;
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pTSInfo->field.ucTSInfoAckPolicy = 0;
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pTSInfo->field.ucSchedule = 0;
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MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
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AdmitTS(ieee, *ppTS, 0);
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list_add_tail(&((*ppTS)->List), pAddmitList);
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return true;
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} else {
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RTLLIB_DEBUG(RTLLIB_DL_ERR, "ERR!!in function "
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"%s() There is not enough dir=%d"
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"(0=up down=1) TS record to be "
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"used!!", __func__, Dir);
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return false;
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}
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}
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}
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}
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static void RemoveTsEntry(struct rtllib_device *ieee, struct ts_common_info *pTs,
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enum tr_select TxRxSelect)
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{
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del_timer_sync(&pTs->SetupTimer);
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del_timer_sync(&pTs->InactTimer);
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TsInitDelBA(ieee, pTs, TxRxSelect);
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if (TxRxSelect == RX_DIR) {
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struct rx_reorder_entry *pRxReorderEntry;
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struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs;
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if (timer_pending(&pRxTS->RxPktPendingTimer))
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del_timer_sync(&pRxTS->RxPktPendingTimer);
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while (!list_empty(&pRxTS->RxPendingPktList)) {
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pRxReorderEntry = (struct rx_reorder_entry *)
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list_entry(pRxTS->RxPendingPktList.prev,
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struct rx_reorder_entry, List);
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RTLLIB_DEBUG(RTLLIB_DL_REORDER, "%s(): Delete SeqNum "
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"%d!\n", __func__,
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pRxReorderEntry->SeqNum);
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list_del_init(&pRxReorderEntry->List);
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{
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int i = 0;
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struct rtllib_rxb *prxb = pRxReorderEntry->prxb;
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if (unlikely(!prxb))
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return;
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for (i = 0; i < prxb->nr_subframes; i++)
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dev_kfree_skb(prxb->subframes[i]);
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kfree(prxb);
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prxb = NULL;
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}
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list_add_tail(&pRxReorderEntry->List,
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&ieee->RxReorder_Unused_List);
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}
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} else {
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struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs;
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del_timer_sync(&pTxTS->TsAddBaTimer);
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}
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}
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void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
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{
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struct ts_common_info *pTS, *pTmpTS;
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printk(KERN_INFO "===========>RemovePeerTS, %pM\n", Addr);
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list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
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if (memcmp(pTS->Addr, Addr, 6) == 0) {
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RemoveTsEntry(ieee, pTS, TX_DIR);
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list_del_init(&pTS->List);
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list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
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}
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}
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list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
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if (memcmp(pTS->Addr, Addr, 6) == 0) {
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printk(KERN_INFO "====>remove Tx_TS_admin_list\n");
|
|
RemoveTsEntry(ieee, pTS, TX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
|
|
}
|
|
}
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
|
|
if (memcmp(pTS->Addr, Addr, 6) == 0) {
|
|
RemoveTsEntry(ieee, pTS, RX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
|
|
}
|
|
}
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
|
|
if (memcmp(pTS->Addr, Addr, 6) == 0) {
|
|
RemoveTsEntry(ieee, pTS, RX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
|
|
}
|
|
}
|
|
}
|
|
EXPORT_SYMBOL(RemovePeerTS);
|
|
|
|
void RemoveAllTS(struct rtllib_device *ieee)
|
|
{
|
|
struct ts_common_info *pTS, *pTmpTS;
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
|
|
RemoveTsEntry(ieee, pTS, TX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
|
|
}
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Admit_List, List) {
|
|
RemoveTsEntry(ieee, pTS, TX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Tx_TS_Unused_List);
|
|
}
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Pending_List, List) {
|
|
RemoveTsEntry(ieee, pTS, RX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
|
|
}
|
|
|
|
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Rx_TS_Admit_List, List) {
|
|
RemoveTsEntry(ieee, pTS, RX_DIR);
|
|
list_del_init(&pTS->List);
|
|
list_add_tail(&pTS->List, &ieee->Rx_TS_Unused_List);
|
|
}
|
|
}
|
|
|
|
void TsStartAddBaProcess(struct rtllib_device *ieee, struct tx_ts_record *pTxTS)
|
|
{
|
|
if (pTxTS->bAddBaReqInProgress == false) {
|
|
pTxTS->bAddBaReqInProgress = true;
|
|
|
|
if (pTxTS->bAddBaReqDelayed) {
|
|
RTLLIB_DEBUG(RTLLIB_DL_BA, "TsStartAddBaProcess(): "
|
|
"Delayed Start ADDBA after 60 sec!!\n");
|
|
mod_timer(&pTxTS->TsAddBaTimer, jiffies +
|
|
MSECS(TS_ADDBA_DELAY));
|
|
} else {
|
|
RTLLIB_DEBUG(RTLLIB_DL_BA, "TsStartAddBaProcess(): "
|
|
"Immediately Start ADDBA now!!\n");
|
|
mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
|
|
}
|
|
} else
|
|
RTLLIB_DEBUG(RTLLIB_DL_BA, "%s()==>BA timer is already added\n",
|
|
__func__);
|
|
}
|