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staging: rtl8192u: remove unused define USB_TX_DRIVER_AGGREGATION_ENABLE

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Also remove the unreachable code.

Signed-off-by: Antoine Schweitzer-Chaput <antoine@schweitzer-chaput.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Antoine Schweitzer-Chaput 2014-06-24 20:41:40 +02:00 committed by Greg Kroah-Hartman
parent 24de874861
commit e3e289658a
2 changed files with 4 additions and 247 deletions
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1
drivers/staging/rtl8192u/Makefile
View File

@ -6,7 +6,6 @@ ccflags-y += -O2
ccflags-y += -DCONFIG_FORCE_HARD_FLOAT=y
ccflags-y += -DJACKSON_NEW_8187 -DJACKSON_NEW_RX
ccflags-y += -DTHOMAS_BEACON -DTHOMAS_TASKLET -DTHOMAS_SKB -DTHOMAS_TURBO
#ccflags-y += -DUSB_TX_DRIVER_AGGREGATION_ENABLE
#ccflags-y += -DUSB_RX_AGGREGATION_SUPPORT
ccflags-y += -Idrivers/staging/rtl8192u/ieee80211

250
drivers/staging/rtl8192u/r8192U_core.c
View File

@ -1036,194 +1036,6 @@ static int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
void rtl8192_try_wake_queue(struct net_device *dev, int pri);
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
u16 DrvAggr_PaddingAdd(struct net_device *dev, struct sk_buff *skb)
{
u16 PaddingNum = 256 - ((skb->len + TX_PACKET_DRVAGGR_SUBFRAME_SHIFT_BYTES) % 256);
return PaddingNum & 0xff;
}
u8 MRateToHwRate8190Pci(u8 rate);
u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc);
u8 MapHwQueueToFirmwareQueue(u8 QueueID);
struct sk_buff *DrvAggr_Aggregation(struct net_device *dev, struct ieee80211_drv_agg_txb *pSendList)
{
struct ieee80211_device *ieee = netdev_priv(dev);
struct r8192_priv *priv = ieee80211_priv(dev);
cb_desc *tcb_desc = NULL;
u8 i;
u32 TotalLength;
struct sk_buff *skb;
struct sk_buff *agg_skb;
tx_desc_819x_usb_aggr_subframe *tx_agg_desc = NULL;
tx_fwinfo_819x_usb *tx_fwinfo = NULL;
//
// Local variable initialization.
//
/* first skb initialization */
skb = pSendList->tx_agg_frames[0];
TotalLength = skb->len;
/* Get the total aggregation length including the padding space and
* sub frame header.
*/
for (i = 1; i < pSendList->nr_drv_agg_frames; i++) {
TotalLength += DrvAggr_PaddingAdd(dev, skb);
skb = pSendList->tx_agg_frames[i];
TotalLength += (skb->len + TX_PACKET_DRVAGGR_SUBFRAME_SHIFT_BYTES);
}
/* allocate skb to contain the aggregated packets */
agg_skb = dev_alloc_skb(TotalLength + ieee->tx_headroom);
memset(agg_skb->data, 0, agg_skb->len);
skb_reserve(agg_skb, ieee->tx_headroom);
/* reserve info for first subframe Tx descriptor to be set in the tx function */
skb = pSendList->tx_agg_frames[0];
tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
tcb_desc->drv_agg_enable = 1;
tcb_desc->pkt_size = skb->len;
tcb_desc->DrvAggrNum = pSendList->nr_drv_agg_frames;
netdev_dbg(dev, "DrvAggNum = %d\n", tcb_desc->DrvAggrNum);
memcpy(agg_skb->cb, skb->cb, sizeof(skb->cb));
memcpy(skb_put(agg_skb, skb->len), skb->data, skb->len);
for (i = 1; i < pSendList->nr_drv_agg_frames; i++) {
/* push the next sub frame to be 256 byte aline */
skb_put(agg_skb, DrvAggr_PaddingAdd(dev, skb));
/* Subframe drv Tx descriptor and firmware info setting */
skb = pSendList->tx_agg_frames[i];
tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
tx_agg_desc = (tx_desc_819x_usb_aggr_subframe *)skb_tail_pointer(agg_skb);
tx_fwinfo = (tx_fwinfo_819x_usb *)(skb_tail_pointer(agg_skb) + sizeof(tx_desc_819x_usb_aggr_subframe));
memset(tx_fwinfo, 0, sizeof(tx_fwinfo_819x_usb));
/* DWORD 0 */
tx_fwinfo->TxHT = (tcb_desc->data_rate&0x80) ? 1 : 0;
tx_fwinfo->TxRate = MRateToHwRate8190Pci(tcb_desc->data_rate);
tx_fwinfo->EnableCPUDur = tcb_desc->bTxEnableFwCalcDur;
tx_fwinfo->Short = QueryIsShort(tx_fwinfo->TxHT, tx_fwinfo->TxRate, tcb_desc);
if (tcb_desc->bAMPDUEnable) { /* AMPDU enabled */
tx_fwinfo->AllowAggregation = 1;
/* DWORD 1 */
tx_fwinfo->RxMF = tcb_desc->ampdu_factor;
tx_fwinfo->RxAMD = tcb_desc->ampdu_density&0x07;//ampdudensity
} else {
tx_fwinfo->AllowAggregation = 0;
/* DWORD 1 */
tx_fwinfo->RxMF = 0;
tx_fwinfo->RxAMD = 0;
}
/* Protection mode related */
tx_fwinfo->RtsEnable = (tcb_desc->bRTSEnable) ? 1 : 0;
tx_fwinfo->CtsEnable = (tcb_desc->bCTSEnable) ? 1 : 0;
tx_fwinfo->RtsSTBC = (tcb_desc->bRTSSTBC) ? 1 : 0;
tx_fwinfo->RtsHT = (tcb_desc->rts_rate&0x80) ? 1 : 0;
tx_fwinfo->RtsRate = MRateToHwRate8190Pci((u8)tcb_desc->rts_rate);
tx_fwinfo->RtsSubcarrier = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->RTSSC) : 0;
tx_fwinfo->RtsBandwidth = (tx_fwinfo->RtsHT == 1) ? ((tcb_desc->bRTSBW) ? 1 : 0) : 0;
tx_fwinfo->RtsShort = (tx_fwinfo->RtsHT == 0) ? (tcb_desc->bRTSUseShortPreamble ? 1 : 0) :
(tcb_desc->bRTSUseShortGI ? 1 : 0);
/* Set Bandwidth and sub-channel settings. */
if (priv->CurrentChannelBW == HT_CHANNEL_WIDTH_20_40) {
if (tcb_desc->bPacketBW) {
tx_fwinfo->TxBandwidth = 1;
tx_fwinfo->TxSubCarrier = 0; //By SD3's Jerry suggestion, use duplicated mode
} else {
tx_fwinfo->TxBandwidth = 0;
tx_fwinfo->TxSubCarrier = priv->nCur40MhzPrimeSC;
}
} else {
tx_fwinfo->TxBandwidth = 0;
tx_fwinfo->TxSubCarrier = 0;
}
/* Fill Tx descriptor */
memset(tx_agg_desc, 0, sizeof(tx_desc_819x_usb_aggr_subframe));
/* DWORD 0 */
tx_agg_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
/* already raw data, need not to subtract header length */
tx_agg_desc->PktSize = skb->len & 0xffff;
/*DWORD 1*/
tx_agg_desc->SecCAMID = 0;
tx_agg_desc->RATid = tcb_desc->RATRIndex;
tx_agg_desc->NoEnc = 1;
tx_agg_desc->SecType = 0x0;
if (tcb_desc->bHwSec) {
switch (priv->ieee80211->pairwise_key_type) {
case KEY_TYPE_WEP40:
case KEY_TYPE_WEP104:
tx_agg_desc->SecType = 0x1;
tx_agg_desc->NoEnc = 0;
break;
case KEY_TYPE_TKIP:
tx_agg_desc->SecType = 0x2;
tx_agg_desc->NoEnc = 0;
break;
case KEY_TYPE_CCMP:
tx_agg_desc->SecType = 0x3;
tx_agg_desc->NoEnc = 0;
break;
case KEY_TYPE_NA:
tx_agg_desc->SecType = 0x0;
tx_agg_desc->NoEnc = 1;
break;
}
}
tx_agg_desc->QueueSelect = MapHwQueueToFirmwareQueue(tcb_desc->queue_index);
tx_agg_desc->TxFWInfoSize = sizeof(tx_fwinfo_819x_usb);
tx_agg_desc->DISFB = tcb_desc->bTxDisableRateFallBack;
tx_agg_desc->USERATE = tcb_desc->bTxUseDriverAssingedRate;
tx_agg_desc->OWN = 1;
//DWORD 2
/* According windows driver, it seems that there no need to fill this field */
/* to fill next packet */
skb_put(agg_skb, TX_PACKET_DRVAGGR_SUBFRAME_SHIFT_BYTES);
memcpy(skb_put(agg_skb, skb->len), skb->data, skb->len);
}
for (i = 0; i < pSendList->nr_drv_agg_frames; i++)
dev_kfree_skb_any(pSendList->tx_agg_frames[i]);
return agg_skb;
}
/* NOTE:
This function return a list of PTCB which is proper to be aggregate with the input TCB.
If no proper TCB is found to do aggregation, SendList will only contain the input TCB.
*/
u8 DrvAggr_GetAggregatibleList(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_drv_agg_txb *pSendList)
{
struct ieee80211_device *ieee = netdev_priv(dev);
PRT_HIGH_THROUGHPUT pHTInfo = ieee->pHTInfo;
u16 nMaxAggrNum = pHTInfo->UsbTxAggrNum;
cb_desc *tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
u8 QueueID = tcb_desc->queue_index;
do {
pSendList->tx_agg_frames[pSendList->nr_drv_agg_frames++] = skb;
if (pSendList->nr_drv_agg_frames >= nMaxAggrNum)
break;
} while ((skb = skb_dequeue(&ieee->skb_drv_aggQ[QueueID])));
RT_TRACE(COMP_AMSDU, "DrvAggr_GetAggregatibleList, nAggrTcbNum = %d \n", pSendList->nr_drv_agg_frames);
return pSendList->nr_drv_agg_frames;
}
#endif
static void rtl8192_tx_isr(struct urb *tx_urb)
{
struct sk_buff *skb = (struct sk_buff *)tx_urb->context;
@ -1275,37 +1087,6 @@ static void rtl8192_tx_isr(struct urb *tx_urb)
return; //modified by david to avoid further processing AMSDU
}
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
else if ((skb_queue_len(&priv->ieee80211->skb_drv_aggQ[queue_index]) != 0) &&
(!(priv->ieee80211->queue_stop))) {
// Tx Driver Aggregation process
/* The driver will aggregation the packets according to the following stats
* 1. check whether there's tx irq available, for it's a completion return
* function, it should contain enough tx irq;
* 2. check packet type;
* 3. initialize sendlist, check whether the to-be send packet no greater than 1
* 4. aggregates the packets, and fill firmware info and tx desc into it, etc.
* 5. check whether the packet could be sent, otherwise just insert into wait head
* */
skb = skb_dequeue(&priv->ieee80211->skb_drv_aggQ[queue_index]);
if (!check_nic_enough_desc(dev, queue_index)) {
skb_queue_head(&(priv->ieee80211->skb_drv_aggQ[queue_index]), skb);
return;
}
/*TODO*/
{
struct ieee80211_drv_agg_txb SendList;
memset(&SendList, 0, sizeof(struct ieee80211_drv_agg_txb));
if (DrvAggr_GetAggregatibleList(dev, skb, &SendList) > 1) {
skb = DrvAggr_Aggregation(dev, &SendList);
}
}
priv->ieee80211->softmac_hard_start_xmit(skb, dev);
}
#endif
}
}
@ -1833,25 +1614,13 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
tx_fwinfo->TxSubCarrier = 0;
}
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
if (tcb_desc->drv_agg_enable)
tx_fwinfo->Tx_INFO_RSVD = (tcb_desc->DrvAggrNum & 0x1f) << 1;
#endif
/* Fill Tx descriptor */
memset(tx_desc, 0, sizeof(tx_desc_819x_usb));
/* DWORD 0 */
tx_desc->LINIP = 0;
tx_desc->CmdInit = 1;
tx_desc->Offset = sizeof(tx_fwinfo_819x_usb) + 8;
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
if (tcb_desc->drv_agg_enable)
tx_desc->PktSize = tcb_desc->pkt_size;
else
#endif
{
tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
}
tx_desc->PktSize = (skb->len - TX_PACKET_SHIFT_BYTES) & 0xffff;
/*DWORD 1*/
tx_desc->SecCAMID = 0;
@ -1892,15 +1661,8 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
tx_desc->LastSeg = 1;
tx_desc->OWN = 1;
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
if (tcb_desc->drv_agg_enable) {
tx_desc->TxBufferSize = tcb_desc->pkt_size + sizeof(tx_fwinfo_819x_usb);
} else
#endif
{
//DWORD 2
tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
}
/* DWORD 2 */
tx_desc->TxBufferSize = (u32)(skb->len - USB_HWDESC_HEADER_LEN);
idx_pipe = 0x5;
/* To submit bulk urb */
@ -3203,12 +2965,8 @@ static RESET_TYPE TxCheckStuck(struct net_device *dev)
for (QueueID = 0; QueueID <= BEACON_QUEUE; QueueID++) {
if (QueueID == TXCMD_QUEUE)
continue;
#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_drv_aggQ[QueueID]) == 0))
#else
if ((skb_queue_len(&priv->ieee80211->skb_waitQ[QueueID]) == 0) && (skb_queue_len(&priv->ieee80211->skb_aggQ[QueueID]) == 0))
#endif
continue;
continue;
bCheckFwTxCnt = true;
}