// SPDX-License-Identifier: GPL-2.0
|
/*
|
* Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
|
*
|
* Contact Information: wlanfae <wlanfae@realtek.com>
|
*/
|
#include "rtllib.h"
|
#include <linux/etherdevice.h>
|
#include "rtl819x_TS.h"
|
|
static void TsSetupTimeOut(struct timer_list *unused)
|
{
|
}
|
|
static void TsInactTimeout(struct timer_list *unused)
|
{
|
}
|
|
static void RxPktPendingTimeout(struct timer_list *t)
|
{
|
struct rx_ts_record *pRxTs = from_timer(pRxTs, t,
|
RxPktPendingTimer);
|
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(struct timer_list *t)
|
{
|
struct tx_ts_record *pTxTs = from_timer(pTxTs, t, TsAddBaTimer);
|
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;
|
timer_setup(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
|
0);
|
|
timer_setup(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
|
0);
|
|
timer_setup(&pTxTS->TsAddBaTimer, TsAddBaProcess, 0);
|
|
timer_setup(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
|
0);
|
timer_setup(&pTxTS->TxAdmittedBARecord.Timer,
|
TxBaInactTimeout, 0);
|
|
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);
|
|
timer_setup(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
|
0);
|
|
timer_setup(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
|
0);
|
|
timer_setup(&pRxTS->RxAdmittedBARecord.Timer,
|
RxBaInactTimeout, 0);
|
|
timer_setup(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout, 0);
|
|
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 {
|
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;
|
default:
|
netdev_warn(ieee->dev, "%s(): TID(%d) is not valid\n",
|
__func__, TID);
|
return false;
|
}
|
}
|
|
*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, "===========>%s, %pM\n", __func__, 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");
|
}
|
