- 根目录:
- drivers
- staging
- rtl8192e
- rtl819x_TSProc.c
/******************************************************************************
* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* The full GNU General Public License is included in this distribution in the
* file called LICENSE.
*
* Contact Information:
* wlanfae <wlanfae@realtek.com>
******************************************************************************/
#include "rtllib.h"
#include <linux/etherdevice.h>
#include "rtl819x_TS.h"
static void TsSetupTimeOut(unsigned long data)
{
}
static void TsInactTimeout(unsigned long data)
{
}
static void RxPktPendingTimeout(unsigned long data)
{
struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
RxTsRecord[pRxTs->num]);
struct rx_reorder_entry *pReorderEntry = NULL;
unsigned long flags = 0;
u8 index = 0;
bool bPktInBuf = false;
spin_lock_irqsave(&(ieee->reorder_spinlock), flags);
if (pRxTs->RxTimeoutIndicateSeq != 0xffff) {
while (!list_empty(&pRxTs->RxPendingPktList)) {
pReorderEntry = (struct rx_reorder_entry *)
list_entry(pRxTs->RxPendingPktList.prev,
struct rx_reorder_entry, List);
if (index == 0)
pRxTs->RxIndicateSeq = pReorderEntry->SeqNum;
if (SN_LESS(pReorderEntry->SeqNum,
pRxTs->RxIndicateSeq) ||
SN_EQUAL(pReorderEntry->SeqNum,
pRxTs->RxIndicateSeq)) {
list_del_init(&pReorderEntry->List);
if (SN_EQUAL(pReorderEntry->SeqNum,
pRxTs->RxIndicateSeq))
pRxTs->RxIndicateSeq =
(pRxTs->RxIndicateSeq + 1) % 4096;
netdev_dbg(ieee->dev,
"%s(): Indicate SeqNum: %d\n",
__func__, pReorderEntry->SeqNum);
ieee->stats_IndicateArray[index] =
pReorderEntry->prxb;
index++;
list_add_tail(&pReorderEntry->List,
&ieee->RxReorder_Unused_List);
} else {
bPktInBuf = true;
break;
}
}
}
if (index > 0) {
pRxTs->RxTimeoutIndicateSeq = 0xffff;
if (index > REORDER_WIN_SIZE) {
netdev_warn(ieee->dev,
"%s(): Rx Reorder struct buffer full\n",
__func__);
spin_unlock_irqrestore(&(ieee->reorder_spinlock),
flags);
return;
}
rtllib_indicate_packets(ieee, ieee->stats_IndicateArray, index);
bPktInBuf = false;
}
if (bPktInBuf && (pRxTs->RxTimeoutIndicateSeq == 0xffff)) {
pRxTs->RxTimeoutIndicateSeq = pRxTs->RxIndicateSeq;
mod_timer(&pRxTs->RxPktPendingTimer, jiffies +
msecs_to_jiffies(ieee->pHTInfo->RxReorderPendingTime)
);
}
spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
}
static void TsAddBaProcess(unsigned long data)
{
struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
u8 num = pTxTs->num;
struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
TxTsRecord[num]);
TsInitAddBA(ieee, pTxTs, BA_POLICY_IMMEDIATE, false);
netdev_dbg(ieee->dev, "%s(): ADDBA Req is started\n", __func__);
}
static void ResetTsCommonInfo(struct ts_common_info *pTsCommonInfo)
{
eth_zero_addr(pTsCommonInfo->Addr);
memset(&pTsCommonInfo->TSpec, 0, sizeof(union tspec_body));
memset(&pTsCommonInfo->TClass, 0, sizeof(union qos_tclas)*TCLAS_NUM);
pTsCommonInfo->TClasProc = 0;
pTsCommonInfo->TClasNum = 0;
}
static void ResetTxTsEntry(struct tx_ts_record *pTS)
{
ResetTsCommonInfo(&pTS->TsCommonInfo);
pTS->TxCurSeq = 0;
pTS->bAddBaReqInProgress = false;
pTS->bAddBaReqDelayed = false;
pTS->bUsingBa = false;
pTS->bDisable_AddBa = false;
ResetBaEntry(&pTS->TxAdmittedBARecord);
ResetBaEntry(&pTS->TxPendingBARecord);
}
static void ResetRxTsEntry(struct rx_ts_record *pTS)
{
ResetTsCommonInfo(&pTS->TsCommonInfo);
pTS->RxIndicateSeq = 0xffff;
pTS->RxTimeoutIndicateSeq = 0xffff;
ResetBaEntry(&pTS->RxAdmittedBARecord);
}
void TSInitialize(struct rtllib_device *ieee)
{
struct tx_ts_record *pTxTS = ieee->TxTsRecord;
struct rx_ts_record *pRxTS = ieee->RxTsRecord;
struct rx_reorder_entry *pRxReorderEntry = ieee->RxReorderEntry;
u8 count = 0;
netdev_vdbg(ieee->dev, "%s()\n", __func__);
INIT_LIST_HEAD(&ieee->Tx_TS_Admit_List);
INIT_LIST_HEAD(&ieee->Tx_TS_Pending_List);
INIT_LIST_HEAD(&ieee->Tx_TS_Unused_List);
for (count = 0; count < TOTAL_TS_NUM; count++) {
pTxTS->num = count;
setup_timer(&pTxTS->TsCommonInfo.SetupTimer,
TsSetupTimeOut,
(unsigned long) pTxTS);
setup_timer(&pTxTS->TsCommonInfo.InactTimer,
TsInactTimeout,
(unsigned long) pTxTS);
setup_timer(&pTxTS->TsAddBaTimer,
TsAddBaProcess,
(unsigned long) pTxTS);
setup_timer(&pTxTS->TxPendingBARecord.Timer,
BaSetupTimeOut,
(unsigned long) pTxTS);
setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
TxBaInactTimeout,
(unsigned long) pTxTS);
ResetTxTsEntry(pTxTS);
list_add_tail(&pTxTS->TsCommonInfo.List,
&ieee->Tx_TS_Unused_List);
pTxTS++;
}
INIT_LIST_HEAD(&ieee->Rx_TS_Admit_List);
INIT_LIST_HEAD(&ieee->Rx_TS_Pending_List);
INIT_LIST_HEAD(&ieee->Rx_TS_Unused_List);
for (count = 0; count < TOTAL_TS_NUM; count++) {
pRxTS->num = count;
INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
setup_timer(&pRxTS->TsCommonInfo.SetupTimer,
TsSetupTimeOut,
(unsigned long) pRxTS);
setup_timer(&pRxTS->TsCommonInfo.InactTimer,
TsInactTimeout,
(unsigned long) pRxTS);
setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
RxBaInactTimeout,
(unsigned long) pRxTS);
setup_timer(&pRxTS->RxPktPendingTimer,
RxPktPendingTimeout,
(unsigned long) pRxTS);
ResetRxTsEntry(pRxTS);
list_add_tail(&pRxTS->TsCommonInfo.List,
&ieee->Rx_TS_Unused_List);
pRxTS++;
}
INIT_LIST_HEAD(&ieee->RxReorder_Unused_List);
for (count = 0; count < REORDER_ENTRY_NUM; count++) {
list_add_tail(&pRxReorderEntry->List,
&ieee->RxReorder_Unused_List);
if (count == (REORDER_ENTRY_NUM-1))
break;
pRxReorderEntry = &ieee->RxReorderEntry[count+1];
}
}
static void AdmitTS(struct rtllib_device *ieee,
struct ts_common_info *pTsCommonInfo, u32 InactTime)
{
del_timer_sync(&pTsCommonInfo->SetupTimer);
del_timer_sync(&pTsCommonInfo->InactTimer);
if (InactTime != 0)
mod_timer(&pTsCommonInfo->InactTimer, jiffies +
msecs_to_jiffies(InactTime));
}
static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
u8 *Addr, u8 TID,
enum tr_select TxRxSelect)
{
u8 dir;
bool search_dir[4] = {0};
struct list_head *psearch_list;
struct ts_common_info *pRet = NULL;
if (ieee->iw_mode == IW_MODE_MASTER) {
if (TxRxSelect == TX_DIR) {
search_dir[DIR_DOWN] = true;
search_dir[DIR_BI_DIR] = true;
} else {
search_dir[DIR_UP] = true;
search_dir[DIR_BI_DIR] = true;
}
} else if (ieee->iw_mode == IW_MODE_ADHOC) {
if (TxRxSelect == TX_DIR)
search_dir[DIR_UP] = true;
else
search_dir[DIR_DOWN] = true;
} else {
if (TxRxSelect == TX_DIR) {
search_dir[DIR_UP] = true;
search_dir[DIR_BI_DIR] = true;
search_dir[DIR_DIRECT] = true;
} else {
search_dir[DIR_DOWN] = true;
search_dir[DIR_BI_DIR] = true;
search_dir[DIR_DIRECT] = true;
}
}
if (TxRxSelect == TX_DIR)
psearch_list = &ieee->Tx_TS_Admit_List;
else
psearch_list = &ieee->Rx_TS_Admit_List;
for (dir = 0; dir <= DIR_BI_DIR; dir++) {
if (!search_dir[dir])
continue;
list_for_each_entry(pRet, psearch_list, List) {
if (memcmp(pRet->Addr, Addr, 6) == 0 &&
pRet->TSpec.f.TSInfo.field.ucTSID == TID &&
pRet->TSpec.f.TSInfo.field.ucDirection == dir)
break;
}
if (&pRet->List != psearch_list)
break;
}
if (pRet && &pRet->List != psearch_list)
return pRet;
return NULL;
}
static void MakeTSEntry(struct ts_common_info *pTsCommonInfo, u8 *Addr,
union tspec_body *pTSPEC, union qos_tclas *pTCLAS,
u8 TCLAS_Num, u8 TCLAS_Proc)
{
u8 count;
if (pTsCommonInfo == NULL)
return;
memcpy(pTsCommonInfo->Addr, Addr, 6);
if (pTSPEC != NULL)
memcpy((u8 *)(&(pTsCommonInfo->TSpec)), (u8 *)pTSPEC,
sizeof(union tspec_body));
for (count = 0; count < TCLAS_Num; count++)
memcpy((u8 *)(&(pTsCommonInfo->TClass[count])),
(u8 *)pTCLAS, sizeof(union qos_tclas));
pTsCommonInfo->TClasProc = TCLAS_Proc;
pTsCommonInfo->TClasNum = TCLAS_Num;
}
bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
u8 *Addr, u8 TID, enum tr_select TxRxSelect, bool bAddNewTs)
{
u8 UP = 0;
union tspec_body TSpec;
union qos_tsinfo *pTSInfo = &TSpec.f.TSInfo;
struct list_head *pUnusedList;
struct list_head *pAddmitList;
enum direction_value Dir;
if (is_multicast_ether_addr(Addr)) {
netdev_warn(ieee->dev, "Get TS for Broadcast or Multicast\n");
return false;
}
if (ieee->current_network.qos_data.supported == 0) {
UP = 0;
} else {
if (!IsACValid(TID)) {
netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
__func__, TID);
return false;
}
switch (TID) {
case 0:
case 3:
UP = 0;
break;
case 1:
case 2:
UP = 2;
break;
case 4:
case 5:
UP = 5;
break;
case 6:
case 7:
UP = 7;
break;
}
}
*ppTS = SearchAdmitTRStream(ieee, Addr, UP, TxRxSelect);
if (*ppTS != NULL)
return true;
if (!bAddNewTs) {
netdev_dbg(ieee->dev, "add new TS failed(tid:%d)\n", UP);
return false;
}
pUnusedList = (TxRxSelect == TX_DIR) ?
(&ieee->Tx_TS_Unused_List) :
(&ieee->Rx_TS_Unused_List);
pAddmitList = (TxRxSelect == TX_DIR) ?
(&ieee->Tx_TS_Admit_List) :
(&ieee->Rx_TS_Admit_List);
Dir = (ieee->iw_mode == IW_MODE_MASTER) ?
((TxRxSelect == TX_DIR) ? DIR_DOWN : DIR_UP) :
((TxRxSelect == TX_DIR) ? DIR_UP : DIR_DOWN);
if (!list_empty(pUnusedList)) {
(*ppTS) = list_entry(pUnusedList->next,
struct ts_common_info, List);
list_del_init(&(*ppTS)->List);
if (TxRxSelect == TX_DIR) {
struct tx_ts_record *tmp =
container_of(*ppTS,
struct tx_ts_record,
TsCommonInfo);
ResetTxTsEntry(tmp);
} else {
struct rx_ts_record *tmp =
container_of(*ppTS,
struct rx_ts_record,
TsCommonInfo);
ResetRxTsEntry(tmp);
}
netdev_dbg(ieee->dev,
"to init current TS, UP:%d, Dir:%d, addr: %pM ppTs=%p\n",
UP, Dir, Addr, *ppTS);
pTSInfo->field.ucTrafficType = 0;
pTSInfo->field.ucTSID = UP;
pTSInfo->field.ucDirection = Dir;
pTSInfo->field.ucAccessPolicy = 1;
pTSInfo->field.ucAggregation = 0;
pTSInfo->field.ucPSB = 0;
pTSInfo->field.ucUP = UP;
pTSInfo->field.ucTSInfoAckPolicy = 0;
pTSInfo->field.ucSchedule = 0;
MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
AdmitTS(ieee, *ppTS, 0);
list_add_tail(&((*ppTS)->List), pAddmitList);
return true;
}
netdev_warn(ieee->dev,
"There is not enough dir=%d(0=up down=1) TS record to be used!",
Dir);
return false;
}
static void RemoveTsEntry(struct rtllib_device *ieee,
struct ts_common_info *pTs, enum tr_select TxRxSelect)
{
del_timer_sync(&pTs->SetupTimer);
del_timer_sync(&pTs->InactTimer);
TsInitDelBA(ieee, pTs, TxRxSelect);
if (TxRxSelect == RX_DIR) {
struct rx_reorder_entry *pRxReorderEntry;
struct rx_ts_record *pRxTS = (struct rx_ts_record *)pTs;
if (timer_pending(&pRxTS->RxPktPendingTimer))
del_timer_sync(&pRxTS->RxPktPendingTimer);
while (!list_empty(&pRxTS->RxPendingPktList)) {
pRxReorderEntry = (struct rx_reorder_entry *)
list_entry(pRxTS->RxPendingPktList.prev,
struct rx_reorder_entry, List);
netdev_dbg(ieee->dev, "%s(): Delete SeqNum %d!\n",
__func__, pRxReorderEntry->SeqNum);
list_del_init(&pRxReorderEntry->List);
{
int i = 0;
struct rtllib_rxb *prxb = pRxReorderEntry->prxb;
if (unlikely(!prxb))
return;
for (i = 0; i < prxb->nr_subframes; i++)
dev_kfree_skb(prxb->subframes[i]);
kfree(prxb);
prxb = NULL;
}
list_add_tail(&pRxReorderEntry->List,
&ieee->RxReorder_Unused_List);
}
} else {
struct tx_ts_record *pTxTS = (struct tx_ts_record *)pTs;
del_timer_sync(&pTxTS->TsAddBaTimer);
}
}
void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
{
struct ts_common_info *pTS, *pTmpTS;
netdev_info(ieee->dev, "===========>RemovePeerTS, %pM\n", Addr);
list_for_each_entry_safe(pTS, pTmpTS, &ieee->Tx_TS_Pending_List, List) {
if (memcmp(pTS->Addr, Addr, 6) == 0) {
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) {
if (memcmp(pTS->Addr, Addr, 6) == 0) {
netdev_info(ieee->dev,
"====>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) {
netdev_dbg(ieee->dev, "Start ADDBA after 60 sec!!\n");
mod_timer(&pTxTS->TsAddBaTimer, jiffies +
msecs_to_jiffies(TS_ADDBA_DELAY));
} else {
netdev_dbg(ieee->dev, "Immediately Start ADDBA\n");
mod_timer(&pTxTS->TsAddBaTimer, jiffies+10);
}
} else
netdev_dbg(ieee->dev, "BA timer is already added\n");
}