diff options
Diffstat (limited to 'drivers/staging/csr/unifi_pdu_processing.c')
| -rw-r--r-- | drivers/staging/csr/unifi_pdu_processing.c | 3729 |
1 files changed, 0 insertions, 3729 deletions
diff --git a/drivers/staging/csr/unifi_pdu_processing.c b/drivers/staging/csr/unifi_pdu_processing.c deleted file mode 100644 index 04fe9e2acf0e..000000000000 --- a/drivers/staging/csr/unifi_pdu_processing.c +++ /dev/null @@ -1,3729 +0,0 @@ -/* - * --------------------------------------------------------------------------- - * FILE: unifi_pdu_processing.c - * - * PURPOSE: - * This file provides the PDU handling functionality before it gets sent to unfi and after - * receiving a PDU from unifi - * - * Copyright (C) 2010 by Cambridge Silicon Radio Ltd. - * - * Refer to LICENSE.txt included with this source code for details on - * the license terms. - * - * --------------------------------------------------------------------------- - */ - -#include <linux/types.h> -#include <linux/etherdevice.h> -#include <linux/vmalloc.h> - -#include "csr_wifi_hip_unifi.h" -#include "csr_wifi_hip_conversions.h" -#include "csr_time.h" -#include "unifi_priv.h" -#include <net/pkt_sched.h> - -#ifdef CSR_SUPPORT_SME -static void _update_buffered_pkt_params_after_alignment(unifi_priv_t *priv, bulk_data_param_t *bulkdata, - tx_buffered_packets_t* buffered_pkt) -{ - struct sk_buff *skb ; - u32 align_offset; - - if (priv == NULL || bulkdata == NULL || buffered_pkt == NULL){ - return; - } - - skb = (struct sk_buff*)bulkdata->d[0].os_net_buf_ptr; - align_offset = (u32)(long)(bulkdata->d[0].os_data_ptr) & (CSR_WIFI_ALIGN_BYTES-1); - if(align_offset){ - skb_pull(skb, align_offset); - } - - buffered_pkt->bulkdata.os_data_ptr = bulkdata->d[0].os_data_ptr; - buffered_pkt->bulkdata.data_length = bulkdata->d[0].data_length; - buffered_pkt->bulkdata.os_net_buf_ptr = bulkdata->d[0].os_net_buf_ptr; - buffered_pkt->bulkdata.net_buf_length = bulkdata->d[0].net_buf_length; -} -#endif - -void -unifi_frame_ma_packet_req(unifi_priv_t *priv, CSR_PRIORITY priority, - CSR_RATE TransmitRate, CSR_CLIENT_TAG hostTag, - u16 interfaceTag, CSR_TRANSMISSION_CONTROL transmissionControl, - CSR_PROCESS_ID leSenderProcessId, u8 *peerMacAddress, - CSR_SIGNAL *signal) -{ - - CSR_MA_PACKET_REQUEST *req = &signal->u.MaPacketRequest; - netInterface_priv_t *interfacePriv; - u8 ba_session_idx = 0; - ba_session_tx_struct *ba_session = NULL; - u8 *ba_addr = NULL; - - interfacePriv = priv->interfacePriv[interfaceTag]; - - unifi_trace(priv, UDBG5, - "In unifi_frame_ma_packet_req, Frame for Peer: %pMF\n", - peerMacAddress); - signal->SignalPrimitiveHeader.SignalId = CSR_MA_PACKET_REQUEST_ID; - signal->SignalPrimitiveHeader.ReceiverProcessId = 0; - signal->SignalPrimitiveHeader.SenderProcessId = leSenderProcessId; - - /* Fill the MA-PACKET.req */ - req->Priority = priority; - unifi_trace(priv, UDBG3, "Tx Frame with Priority: 0x%x\n", req->Priority); - - /* A value of 0 is used for auto selection of rates. But for P2P GO case - * for action frames the rate is governed by SME. Hence instead of 0, - * the rate is filled in with the value passed here - */ - req->TransmitRate = TransmitRate; - - /* packets from netdev then no confirm required but packets from - * Nme/Sme eapol data frames requires the confirmation - */ - req->TransmissionControl = transmissionControl; - req->VirtualInterfaceIdentifier = - uf_get_vif_identifier(interfacePriv->interfaceMode, interfaceTag); - memcpy(req->Ra.x, peerMacAddress, ETH_ALEN); - - if (hostTag == 0xffffffff) { - req->HostTag = interfacePriv->tag++; - req->HostTag |= 0x40000000; - unifi_trace(priv, UDBG3, "new host tag assigned = 0x%x\n", req->HostTag); - interfacePriv->tag &= 0x0fffffff; - } else { - req->HostTag = hostTag; - unifi_trace(priv, UDBG3, "host tag got from SME = 0x%x\n", req->HostTag); - } - /* check if BA session exists for the peer MAC address on same tID */ - if(interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_AP || - interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_P2PGO){ - ba_addr = peerMacAddress; - }else{ - ba_addr = interfacePriv->bssid.a; - } - for (ba_session_idx=0; ba_session_idx < MAX_SUPPORTED_BA_SESSIONS_TX; ba_session_idx++){ - ba_session = interfacePriv->ba_session_tx[ba_session_idx]; - if (ba_session){ - if ((!memcmp(ba_session->macAddress.a, ba_addr, ETH_ALEN)) && (ba_session->tID == priority)){ - req->TransmissionControl |= CSR_ALLOW_BA; - break; - } - } - } - - unifi_trace(priv, UDBG5, "leaving unifi_frame_ma_packet_req\n"); -} - -#ifdef CSR_SUPPORT_SME - -#define TRANSMISSION_CONTROL_TRIGGER_MASK 0x0001 -#define TRANSMISSION_CONTROL_EOSP_MASK 0x0002 - -static -int frame_and_send_queued_pdu(unifi_priv_t* priv, tx_buffered_packets_t* buffered_pkt, - CsrWifiRouterCtrlStaInfo_t *staRecord, u8 moreData , u8 eosp) -{ - - CSR_SIGNAL signal; - bulk_data_param_t bulkdata; - int result; - u8 toDs, fromDs, macHeaderLengthInBytes = MAC_HEADER_SIZE; - u8 *qc; - u16 *fc = (u16*)(buffered_pkt->bulkdata.os_data_ptr); - unsigned long lock_flags; - unifi_trace(priv, UDBG3, "frame_and_send_queued_pdu with moreData: %d , EOSP: %d\n", moreData, eosp); - unifi_frame_ma_packet_req(priv, buffered_pkt->priority, buffered_pkt->rate, buffered_pkt->hostTag, - buffered_pkt->interfaceTag, buffered_pkt->transmissionControl, - buffered_pkt->leSenderProcessId, buffered_pkt->peerMacAddress.a, &signal); - bulkdata.d[0].os_data_ptr = buffered_pkt->bulkdata.os_data_ptr; - bulkdata.d[0].data_length = buffered_pkt->bulkdata.data_length; - bulkdata.d[0].os_net_buf_ptr = buffered_pkt->bulkdata.os_net_buf_ptr; - bulkdata.d[0].net_buf_length = buffered_pkt->bulkdata.net_buf_length; - bulkdata.d[1].os_data_ptr = NULL; - bulkdata.d[1].data_length = 0; - bulkdata.d[1].os_net_buf_ptr =0; - bulkdata.d[1].net_buf_length =0; - - if(moreData) { - *fc |= cpu_to_le16(IEEE802_11_FC_MOREDATA_MASK); - } else { - *fc &= cpu_to_le16(~IEEE802_11_FC_MOREDATA_MASK); - } - - if((staRecord != NULL)&& (staRecord->wmmOrQosEnabled == TRUE)) - { - unifi_trace(priv, UDBG3, "frame_and_send_queued_pdu WMM Enabled: %d \n", staRecord->wmmOrQosEnabled); - - toDs = (*fc & cpu_to_le16(IEEE802_11_FC_TO_DS_MASK))?1 : 0; - fromDs = (*fc & cpu_to_le16(IEEE802_11_FC_FROM_DS_MASK))? 1: 0; - - switch(le16_to_cpu(*fc) & IEEE80211_FC_SUBTYPE_MASK) - { - case IEEE802_11_FC_TYPE_QOS_DATA & IEEE80211_FC_SUBTYPE_MASK: - case IEEE802_11_FC_TYPE_QOS_NULL & IEEE80211_FC_SUBTYPE_MASK: - /* If both are set then the Address4 exists (only for AP) */ - if (fromDs && toDs) { - /* 6 is the size of Address4 field */ - macHeaderLengthInBytes += (QOS_CONTROL_HEADER_SIZE + 6); - } else { - macHeaderLengthInBytes += QOS_CONTROL_HEADER_SIZE; - } - - /* If order bit set then HT control field is the part of MAC header */ - if (*fc & cpu_to_le16(IEEE80211_FC_ORDER_MASK)) { - macHeaderLengthInBytes += HT_CONTROL_HEADER_SIZE; - qc = (u8*)(buffered_pkt->bulkdata.os_data_ptr + (macHeaderLengthInBytes-6)); - } else { - qc = (u8*)(buffered_pkt->bulkdata.os_data_ptr + (macHeaderLengthInBytes-2)); - } - *qc = eosp ? *qc | (1 << 4) : *qc & (~(1 << 4)); - break; - default: - if (fromDs && toDs) - macHeaderLengthInBytes += 6; - } - - } - result = ul_send_signal_unpacked(priv, &signal, &bulkdata); - if(result){ - _update_buffered_pkt_params_after_alignment(priv, &bulkdata, buffered_pkt); - } - - /* Decrement the packet counts queued in driver */ - if (result != -ENOSPC) { - /* protect entire counter updation by disabling preemption */ - if (!priv->noOfPktQueuedInDriver) { - unifi_error(priv, "packets queued in driver 0 still decrementing\n"); - } else { - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - priv->noOfPktQueuedInDriver--; - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - } - /* Sta Record is available for all unicast (except genericMgt Frames) & in other case its NULL */ - if (staRecord) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - if (!staRecord->noOfPktQueued) { - unifi_error(priv, "packets queued in driver per station is 0 still decrementing\n"); - } else { - staRecord->noOfPktQueued--; - } - /* if the STA alive probe frame has failed then reset the saved host tag */ - if (result){ - if (staRecord->nullDataHostTag == buffered_pkt->hostTag){ - staRecord->nullDataHostTag = INVALID_HOST_TAG; - } - } - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - - } - return result; -} -#ifdef CSR_SUPPORT_SME -static -void set_eosp_transmit_ctrl(unifi_priv_t *priv, struct list_head *txList) -{ - /* dequeue the tx data packets from the appropriate queue */ - tx_buffered_packets_t *tx_q_item = NULL; - struct list_head *listHead; - struct list_head *placeHolder; - unsigned long lock_flags; - - - unifi_trace(priv, UDBG5, "entering set_eosp_transmit_ctrl\n"); - /* check for list empty */ - if (list_empty(txList)) { - unifi_warning(priv, "In set_eosp_transmit_ctrl, the list is empty\n"); - return; - } - - /* return the last node , and modify it. */ - - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_for_each_prev_safe(listHead, placeHolder, txList) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - tx_q_item->transmissionControl |= TRANSMISSION_CONTROL_EOSP_MASK; - tx_q_item->transmissionControl = (tx_q_item->transmissionControl & ~(CSR_NO_CONFIRM_REQUIRED)); - unifi_trace(priv, UDBG1, - "set_eosp_transmit_ctrl Transmission Control = 0x%x hostTag = 0x%x \n", tx_q_item->transmissionControl, tx_q_item->hostTag); - unifi_trace(priv, UDBG3, "in set_eosp_transmit_ctrl no.of buffered frames %d\n", priv->noOfPktQueuedInDriver); - break; - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - unifi_trace(priv, UDBG1, "List Empty %d\n", list_empty(txList)); - unifi_trace(priv, UDBG5, "leaving set_eosp_transmit_ctrl\n"); - return; -} - -static -void send_vif_availibility_rsp(unifi_priv_t *priv, CSR_VIF_IDENTIFIER vif, CSR_RESULT_CODE resultCode) -{ - CSR_SIGNAL signal; - CSR_MA_VIF_AVAILABILITY_RESPONSE *rsp; - bulk_data_param_t *bulkdata = NULL; - int r; - - unifi_trace(priv, UDBG3, "send_vif_availibility_rsp : invoked with resultCode = %d \n", resultCode); - - memset(&signal, 0, sizeof(CSR_SIGNAL)); - rsp = &signal.u.MaVifAvailabilityResponse; - rsp->VirtualInterfaceIdentifier = vif; - rsp->ResultCode = resultCode; - signal.SignalPrimitiveHeader.SignalId = CSR_MA_VIF_AVAILABILITY_RESPONSE_ID; - signal.SignalPrimitiveHeader.ReceiverProcessId = 0; - signal.SignalPrimitiveHeader.SenderProcessId = priv->netdev_client->sender_id; - - /* Send the signal to UniFi */ - r = ul_send_signal_unpacked(priv, &signal, bulkdata); - if(r) { - unifi_error(priv, "Availibility response sending failed %x status %d\n", vif, r); - } - else { - unifi_trace(priv, UDBG3, "send_vif_availibility_rsp : status = %d \n", r); - } -} -#endif - -static -void verify_and_accomodate_tx_packet(unifi_priv_t *priv) -{ - tx_buffered_packets_t *tx_q_item; - unsigned long lock_flags; - struct list_head *listHead, *list; - struct list_head *placeHolder; - u8 i, j, eospFramedeleted=0; - u8 thresholdExcedeDueToBroadcast = TRUE; - /* it will be made it interface Specific in the future when multi interfaces are supported , - right now interface 0 is considered */ - netInterface_priv_t *interfacePriv = priv->interfacePriv[0]; - CsrWifiRouterCtrlStaInfo_t *staInfo = NULL; - - unifi_trace(priv, UDBG3, "entering verify_and_accomodate_tx_packet\n"); - - for(i = 0; i < UNIFI_MAX_CONNECTIONS; i++) { - staInfo = interfacePriv->staInfo[i]; - if (staInfo && (staInfo->noOfPktQueued >= CSR_WIFI_DRIVER_MAX_PKT_QUEUING_THRESHOLD_PER_PEER)) { - /* remove the first(oldest) packet from the all the access catogory, since data - * packets for station record crossed the threshold limit (64 for AP supporting - * 8 peers) - */ - unifi_trace(priv, UDBG3, "number of station pkts queued= %d for sta id = %d\n", staInfo->noOfPktQueued, staInfo->aid); - for(j = 0; j < MAX_ACCESS_CATOGORY; j++) { - list = &staInfo->dataPdu[j]; - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_for_each_safe(listHead, placeHolder, list) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - list_del(listHead); - thresholdExcedeDueToBroadcast = FALSE; - unifi_net_data_free(priv, &tx_q_item->bulkdata); - kfree(tx_q_item); - tx_q_item = NULL; - if (!priv->noOfPktQueuedInDriver) { - unifi_error(priv, "packets queued in driver 0 still decrementing in %s\n", __FUNCTION__); - } else { - /* protection provided by spinlock */ - priv->noOfPktQueuedInDriver--; - - } - /* Sta Record is available for all unicast (except genericMgt Frames) & in other case its NULL */ - if (!staInfo->noOfPktQueued) { - unifi_error(priv, "packets queued in driver per station is 0 still decrementing in %s\n", __FUNCTION__); - } else { - spin_lock(&priv->staRecord_lock); - staInfo->noOfPktQueued--; - spin_unlock(&priv->staRecord_lock); - } - break; - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - } - } - } - if (thresholdExcedeDueToBroadcast && interfacePriv->noOfbroadcastPktQueued > CSR_WIFI_DRIVER_MINIMUM_BROADCAST_PKT_THRESHOLD ) { - /* Remove the packets from genericMulticastOrBroadCastFrames queue - * (the max packets in driver is reached due to broadcast/multicast frames) - */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_for_each_safe(listHead, placeHolder, &interfacePriv->genericMulticastOrBroadCastFrames) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - if(eospFramedeleted){ - tx_q_item->transmissionControl |= TRANSMISSION_CONTROL_EOSP_MASK; - tx_q_item->transmissionControl = (tx_q_item->transmissionControl & ~(CSR_NO_CONFIRM_REQUIRED)); - unifi_trace(priv, UDBG1, "updating eosp for next packet hostTag:= 0x%x ", tx_q_item->hostTag); - eospFramedeleted =0; - break; - } - - if(tx_q_item->transmissionControl & TRANSMISSION_CONTROL_EOSP_MASK ){ - eospFramedeleted = 1; - } - unifi_trace(priv, UDBG1, "freeing of multicast packets ToC = 0x%x hostTag = 0x%x \n", tx_q_item->transmissionControl, tx_q_item->hostTag); - list_del(listHead); - unifi_net_data_free(priv, &tx_q_item->bulkdata); - kfree(tx_q_item); - priv->noOfPktQueuedInDriver--; - spin_lock(&priv->staRecord_lock); - interfacePriv->noOfbroadcastPktQueued--; - spin_unlock(&priv->staRecord_lock); - if(!eospFramedeleted){ - break; - } - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - } - unifi_trace(priv, UDBG3, "leaving verify_and_accomodate_tx_packet\n"); -} - -static -CsrResult enque_tx_data_pdu(unifi_priv_t *priv, bulk_data_param_t *bulkdata, - struct list_head *list, CSR_SIGNAL *signal, - u8 requeueOnSamePos) -{ - - /* queue the tx data packets on to appropriate queue */ - CSR_MA_PACKET_REQUEST *req = &signal->u.MaPacketRequest; - tx_buffered_packets_t *tx_q_item; - unsigned long lock_flags; - - unifi_trace(priv, UDBG5, "entering enque_tx_data_pdu\n"); - if(!list) { - unifi_error(priv, "List is not specified\n"); - return CSR_RESULT_FAILURE; - } - - /* Removes aged packets & adds the incoming packet */ - if (priv->noOfPktQueuedInDriver >= CSR_WIFI_DRIVER_SUPPORT_FOR_MAX_PKT_QUEUEING) { - unifi_trace(priv, UDBG3, "number of pkts queued= %d \n", priv->noOfPktQueuedInDriver); - verify_and_accomodate_tx_packet(priv); - } - - - - tx_q_item = kmalloc(sizeof(tx_buffered_packets_t), GFP_ATOMIC); - if (tx_q_item == NULL) { - unifi_error(priv, - "Failed to allocate %d bytes for tx packet record\n", - sizeof(tx_buffered_packets_t)); - return CSR_RESULT_FAILURE; - } - - /* disable the preemption */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - INIT_LIST_HEAD(&tx_q_item->q); - /* fill the tx_q structure members */ - tx_q_item->bulkdata.os_data_ptr = bulkdata->d[0].os_data_ptr; - tx_q_item->bulkdata.data_length = bulkdata->d[0].data_length; - tx_q_item->bulkdata.os_net_buf_ptr = bulkdata->d[0].os_net_buf_ptr; - tx_q_item->bulkdata.net_buf_length = bulkdata->d[0].net_buf_length; - tx_q_item->interfaceTag = req->VirtualInterfaceIdentifier & 0xff; - tx_q_item->hostTag = req->HostTag; - tx_q_item->leSenderProcessId = signal->SignalPrimitiveHeader.SenderProcessId; - tx_q_item->transmissionControl = req->TransmissionControl; - tx_q_item->priority = req->Priority; - tx_q_item->rate = req->TransmitRate; - memcpy(tx_q_item->peerMacAddress.a, req->Ra.x, ETH_ALEN); - - - - if (requeueOnSamePos) { - list_add(&tx_q_item->q, list); - } else { - list_add_tail(&tx_q_item->q, list); - } - - /* Count of packet queued in driver */ - priv->noOfPktQueuedInDriver++; - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - unifi_trace(priv, UDBG5, "leaving enque_tx_data_pdu\n"); - return CSR_RESULT_SUCCESS; -} - -#ifdef CSR_WIFI_REQUEUE_PACKET_TO_HAL -CsrResult unifi_reque_ma_packet_request (void *ospriv, u32 host_tag, - u16 txStatus, bulk_data_desc_t *bulkDataDesc) -{ - CsrResult status = CSR_RESULT_SUCCESS; - unifi_priv_t *priv = (unifi_priv_t*)ospriv; - netInterface_priv_t *interfacePriv; - struct list_head *list = NULL; - CsrWifiRouterCtrlStaInfo_t *staRecord = NULL; - bulk_data_param_t bulkData; - CSR_SIGNAL signal; - CSR_PRIORITY priority = 0; - u16 interfaceTag = 0; - unifi_TrafficQueue priority_q; - u16 frameControl = 0, frameType = 0; - unsigned long lock_flags; - - interfacePriv = priv->interfacePriv[interfaceTag]; - - /* If the current mode is not AP or P2PGO then just return failure - * to clear the hip slot - */ - if(!((interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_AP) || - (interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_P2PGO))) { - return CSR_RESULT_FAILURE; - } - - unifi_trace(priv, UDBG6, "unifi_reque_ma_packet_request: host_tag = 0x%x\n", host_tag); - - staRecord = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, - (((u8 *) bulkDataDesc->os_data_ptr) + 4), - interfaceTag); - if (NULL == staRecord) { - unifi_trace(priv, UDBG5, "unifi_reque_ma_packet_request: Invalid STA record \n"); - return CSR_RESULT_FAILURE; - } - - /* Update TIM if MA-PACKET.cfm fails with status as Tx-retry-limit or No-BSS and then just return failure - * to clear the hip slot associated with the Packet - */ - if (CSR_TX_RETRY_LIMIT == txStatus || CSR_TX_NO_BSS == txStatus) { - if (staRecord->timSet == CSR_WIFI_TIM_RESET || staRecord->timSet == CSR_WIFI_TIM_RESETTING) - { - unifi_trace(priv, UDBG2, "unifi_reque_ma_packet_request: CFM failed with Retry Limit or No BSS-->update TIM\n"); - if (!staRecord->timRequestPendingFlag) { - update_tim(priv, staRecord->aid, 1, interfaceTag, staRecord->assignedHandle); - } - else { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 1; - unifi_trace(priv, UDBG6, "unifi_reque_ma_packet_request: One more UpdateTim Request(:%d)Queued for AID %x\n", - staRecord->updateTimReqQueued, staRecord->aid); - } - } - return CSR_RESULT_FAILURE; - } - else if ((CSR_TX_LIFETIME == txStatus) || (CSR_TX_BLOCK_ACK_TIMEOUT == txStatus) || - (CSR_TX_FAIL_TRANSMISSION_VIF_INTERRUPTED == txStatus) || - (CSR_TX_REJECTED_PEER_STATION_SLEEPING == txStatus) || - (CSR_TX_REJECTED_DTIM_STARTED == txStatus)) { - /* Extract the Frame control and the frame type */ - frameControl = CSR_GET_UINT16_FROM_LITTLE_ENDIAN(bulkDataDesc->os_data_ptr); - frameType = ((frameControl & IEEE80211_FC_TYPE_MASK) >> FRAME_CONTROL_TYPE_FIELD_OFFSET); - - /* Mgmt frames will not be re-queued for Tx - * so just return failure to clear the hip slot - */ - if (IEEE802_11_FRAMETYPE_MANAGEMENT == frameType) { - return CSR_RESULT_FAILURE; - } - else if (IEEE802_11_FRAMETYPE_DATA == frameType) { - /* QOS NULL and DATA NULL frames will not be re-queued for Tx - * so just return failure to clear the hip slot - */ - if ((((frameControl & IEEE80211_FC_SUBTYPE_MASK) >> FRAME_CONTROL_SUBTYPE_FIELD_OFFSET) == QOS_DATA_NULL) || - (((frameControl & IEEE80211_FC_SUBTYPE_MASK) >> FRAME_CONTROL_SUBTYPE_FIELD_OFFSET)== DATA_NULL )) { - return CSR_RESULT_FAILURE; - } - } - - /* Extract the Packet priority */ - if (TRUE == staRecord->wmmOrQosEnabled) { - u16 qosControl = 0; - u8 dataFrameType = 0; - - dataFrameType =((frameControl & IEEE80211_FC_SUBTYPE_MASK) >> 4); - - if (dataFrameType == QOS_DATA) { - /* QoS control field is offset from frame control by 2 (frame control) - * + 2 (duration/ID) + 2 (sequence control) + 3*ETH_ALEN or 4*ETH_ALEN - */ - if((frameControl & IEEE802_11_FC_TO_DS_MASK) && (frameControl & IEEE802_11_FC_FROM_DS_MASK)) { - qosControl= CSR_GET_UINT16_FROM_LITTLE_ENDIAN(bulkDataDesc->os_data_ptr + 30); - } - else { - qosControl = CSR_GET_UINT16_FROM_LITTLE_ENDIAN(bulkDataDesc->os_data_ptr + 24); - } - } - - priority = (CSR_PRIORITY)(qosControl & IEEE802_11_QC_TID_MASK); - - if (priority < CSR_QOS_UP0 || priority > CSR_QOS_UP7) { - unifi_trace(priv, UDBG5, "unifi_reque_ma_packet_request: Invalid priority:%x \n", priority); - return CSR_RESULT_FAILURE; - } - } - else { - priority = CSR_CONTENTION; - } - - /* Frame Bulk data to requeue it back to HAL Queues */ - bulkData.d[0].os_data_ptr = bulkDataDesc->os_data_ptr; - bulkData.d[0].data_length = bulkDataDesc->data_length; - bulkData.d[0].os_net_buf_ptr = bulkDataDesc->os_net_buf_ptr; - bulkData.d[0].net_buf_length = bulkDataDesc->net_buf_length; - - bulkData.d[1].os_data_ptr = NULL; - bulkData.d[1].os_net_buf_ptr = NULL; - bulkData.d[1].data_length = bulkData.d[1].net_buf_length = 0; - - /* Initialize signal to zero */ - memset(&signal, 0, sizeof(CSR_SIGNAL)); - - /* Frame MA Packet Req */ - unifi_frame_ma_packet_req(priv, priority, 0, host_tag, - interfaceTag, CSR_NO_CONFIRM_REQUIRED, - priv->netdev_client->sender_id, - staRecord->peerMacAddress.a, &signal); - - /* Find the Q-Priority */ - priority_q = unifi_frame_priority_to_queue(priority); - list = &staRecord->dataPdu[priority_q]; - - /* Place the Packet on to HAL Queue */ - status = enque_tx_data_pdu(priv, &bulkData, list, &signal, TRUE); - - /* Update the Per-station queued packet counter */ - if (!status) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staRecord->noOfPktQueued++; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - } - else { - /* Packet will not be re-queued for any of the other MA Packet Tx failure - * reasons so just return failure to clear the hip slot - */ - return CSR_RESULT_FAILURE; - } - - return status; -} -#endif - -static void is_all_ac_deliver_enabled_and_moredata(CsrWifiRouterCtrlStaInfo_t *staRecord, u8 *allDeliveryEnabled, u8 *dataAvailable) -{ - u8 i; - *allDeliveryEnabled = TRUE; - for (i = 0 ;i < MAX_ACCESS_CATOGORY; i++) { - if (!IS_DELIVERY_ENABLED(staRecord->powersaveMode[i])) { - /* One is is not Delivery Enabled */ - *allDeliveryEnabled = FALSE; - break; - } - } - if (*allDeliveryEnabled) { - *dataAvailable = (!list_empty(&staRecord->dataPdu[0]) || !list_empty(&staRecord->dataPdu[1]) - ||!list_empty(&staRecord->dataPdu[2]) ||!list_empty(&staRecord->dataPdu[3]) - ||!list_empty(&staRecord->mgtFrames)); - } -} - -/* - * --------------------------------------------------------------------------- - * uf_handle_tim_cfm - * - * - * This function updates tim status in host depending confirm status from firmware - * - * Arguments: - * priv Pointer to device private context struct - * cfm CSR_MLME_SET_TIM_CONFIRM - * receiverProcessId SenderProcessID to fetch handle & timSet status - * - * --------------------------------------------------------------------------- - */ -void uf_handle_tim_cfm(unifi_priv_t *priv, CSR_MLME_SET_TIM_CONFIRM *cfm, u16 receiverProcessId) -{ - u8 handle = CSR_WIFI_GET_STATION_HANDLE_FROM_RECEIVER_ID(receiverProcessId); - u8 timSetStatus = CSR_WIFI_GET_TIMSET_STATE_FROM_RECEIVER_ID(receiverProcessId); - u16 interfaceTag = (cfm->VirtualInterfaceIdentifier & 0xff); - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - CsrWifiRouterCtrlStaInfo_t *staRecord = NULL; - /* This variable holds what TIM value we wanted to set in firmware */ - u16 timSetValue = 0; - /* Irrespective of interface the count maintained */ - static u8 retryCount = 0; - unsigned long lock_flags; - unifi_trace(priv, UDBG3, "entering %s, handle = %x, timSetStatus = %x\n", __FUNCTION__, handle, timSetStatus); - - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_warning(priv, "bad interfaceTag = %x\n", interfaceTag); - return; - } - - if ((handle != CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE) && (handle >= UNIFI_MAX_CONNECTIONS)) { - unifi_warning(priv, "bad station Handle = %x\n", handle); - return; - } - - if (handle != CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - if ((staRecord = ((CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[handle]))) == NULL) { - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - unifi_warning(priv, "uf_handle_tim_cfm: station record is NULL handle = %x\n", handle); - return; - } - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - switch(timSetStatus) - { - case CSR_WIFI_TIM_SETTING: - timSetValue = CSR_WIFI_TIM_SET; - break; - case CSR_WIFI_TIM_RESETTING: - timSetValue = CSR_WIFI_TIM_RESET; - break; - default: - unifi_warning(priv, "timSet state is %x: Debug\n", timSetStatus); - return; - } - - /* check TIM confirm for success/failures */ - switch(cfm->ResultCode) - { - case CSR_RC_SUCCESS: - if (handle != CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE) { - /* Unicast frame & station record available */ - if (timSetStatus == staRecord->timSet) { - staRecord->timSet = timSetValue; - /* fh_cmd_q can also be full at some point of time!, - * resetting count as queue is cleaned by firmware at this point - */ - retryCount = 0; - unifi_trace(priv, UDBG2, "tim (%s) successfully in firmware\n", (timSetValue)?"SET":"RESET"); - } else { - unifi_trace(priv, UDBG3, "receiver processID = %x, success: request & confirm states are not matching in TIM cfm: Debug status = %x, staRecord->timSet = %x, handle = %x\n", - receiverProcessId, timSetStatus, staRecord->timSet, handle); - } - - /* Reset TIM pending flag to send next TIM request */ - staRecord->timRequestPendingFlag = FALSE; - - /* Make sure that one more UpdateTim request is queued, if Queued its value - * should be CSR_WIFI_TIM_SET or CSR_WIFI_TIM_RESET - */ - if (0xFF != staRecord->updateTimReqQueued) - { - /* Process the UpdateTim Request which is queued while previous UpdateTim was in progress */ - if (staRecord->timSet != staRecord->updateTimReqQueued) - { - unifi_trace(priv, UDBG2, "uf_handle_tim_cfm : Processing Queued UpdateTimReq \n"); - - update_tim(priv, staRecord->aid, staRecord->updateTimReqQueued, interfaceTag, handle); - - staRecord->updateTimReqQueued = 0xFF; - } - } - } else { - - interfacePriv->bcTimSet = timSetValue; - /* fh_cmd_q can also be full at some point of time!, - * resetting count as queue is cleaned by firmware at this point - */ - retryCount = 0; - unifi_trace(priv, UDBG3, "tim (%s) successfully for broadcast frame in firmware\n", (timSetValue)?"SET":"RESET"); - - /* Reset DTIM pending flag to send next DTIM request */ - interfacePriv->bcTimSetReqPendingFlag = FALSE; - - /* Make sure that one more UpdateDTim request is queued, if Queued its value - * should be CSR_WIFI_TIM_SET or CSR_WIFI_TIM_RESET - */ - if (0xFF != interfacePriv->bcTimSetReqQueued) - { - /* Process the UpdateTim Request which is queued while previous UpdateTim was in progress */ - if (interfacePriv->bcTimSet != interfacePriv->bcTimSetReqQueued) - { - unifi_trace(priv, UDBG2, "uf_handle_tim_cfm : Processing Queued UpdateDTimReq \n"); - - update_tim(priv, 0, interfacePriv->bcTimSetReqQueued, interfaceTag, 0xFFFFFFFF); - - interfacePriv->bcTimSetReqQueued = 0xFF; - } - } - - } - break; - case CSR_RC_INVALID_PARAMETERS: - case CSR_RC_INSUFFICIENT_RESOURCE: - /* check for max retry limit & send again - * MAX_RETRY_LIMIT is not maintained for each set of transactions..Its generic - * If failure crosses this Limit, we have to take a call to FIX - */ - if (retryCount > UNIFI_MAX_RETRY_LIMIT) { - u8 moreData = FALSE; - retryCount = 0; - /* Because of continuos traffic in fh_cmd_q the tim set request is failing (exceeding retry limit) - * but if we didn't synchronize our timSet varible state with firmware then it can cause below issues - * cond 1. We want to SET tim in firmware if its fails & max retry limit reached - * -> If host set's the timSet to 1, we wont try to send(as max retry reached) update tim but - * firmware is not updated with queue(TIM) status so it wont set TIM in beacon finally host start piling - * up data & wont try to set tim in firmware (This can cause worser performance) - * cond 2. We want to reset tim in firmware it fails & reaches max retry limit - * -> If host sets the timSet to Zero, it wont try to set a TIM request unless we wont have any packets - * to be queued, so beacon unnecessarily advertizes the TIM - */ - - if(staRecord) { - if(!staRecord->wmmOrQosEnabled) { - moreData = (!list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]) || - !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO]) || - !list_empty(&staRecord->mgtFrames)); - } else { - /* Peer is QSTA */ - u8 allDeliveryEnabled = 0, dataAvailable = 0; - /* Check if all AC's are Delivery Enabled */ - is_all_ac_deliver_enabled_and_moredata(staRecord, &allDeliveryEnabled, &dataAvailable); - /*check for more data in non-delivery enabled queues*/ - moreData = (uf_is_more_data_for_non_delivery_ac(staRecord) || (allDeliveryEnabled && dataAvailable)); - - } - /* To avoid cond 1 & 2, check internal Queues status, if we have more Data then set RESET the timSet(0), - * so we are trying to be in sync with firmware & next packets before queuing atleast try to - * set TIM in firmware otherwise it SET timSet(1) - */ - if (moreData) { - staRecord->timSet = CSR_WIFI_TIM_RESET; - } else { - staRecord->timSet = CSR_WIFI_TIM_SET; - } - } else { - /* Its a broadcast frames */ - moreData = (!list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames) || - !list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)); - if (moreData) { - update_tim(priv, 0, CSR_WIFI_TIM_SET, interfaceTag, 0xFFFFFFFF); - } else { - update_tim(priv, 0, CSR_WIFI_TIM_RESET, interfaceTag, 0xFFFFFFFF); - } - } - - unifi_error(priv, "no of error's for TIM setting crossed the Limit: verify\n"); - return; - } - retryCount++; - - if (handle != CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE) { - if (timSetStatus == staRecord->timSet) { - unifi_warning(priv, "tim request failed, retry for AID = %x\n", staRecord->aid); - update_tim(priv, staRecord->aid, timSetValue, interfaceTag, handle); - } else { - unifi_trace(priv, UDBG1, "failure: request & confirm states are not matching in TIM cfm: Debug status = %x, staRecord->timSet = %x\n", - timSetStatus, staRecord->timSet); - } - } else { - unifi_warning(priv, "tim request failed, retry for broadcast frames\n"); - update_tim(priv, 0, timSetValue, interfaceTag, 0xFFFFFFFF); - } - break; - default: - unifi_warning(priv, "tim update request failed resultcode = %x\n", cfm->ResultCode); - } - - unifi_trace(priv, UDBG2, "leaving %s\n", __FUNCTION__); -} - -/* - * --------------------------------------------------------------------------- - * update_tim - * - * - * This function updates tim status in firmware for AID[1 to UNIFI_MAX_CONNECTIONS] or - * AID[0] for broadcast/multicast packets. - * - * NOTE: The LSB (least significant BYTE) of senderId while sending this MLME premitive - * has been modified(utilized) as below - * - * SenderID in signal's SignalPrimitiveHeader is 2 byte the lowe byte bitmap is below - * - * station handle(6 bits) timSet Status (2 bits) - * --------------------- ---------------------- - * 0 0 0 0 0 0 | 0 0 - * - * timSet Status can be one of below: - * - * CSR_WIFI_TIM_RESET - * CSR_WIFI_TIM_RESETTING - * CSR_WIFI_TIM_SET - * CSR_WIFI_TIM_SETTING - * - * Arguments: - * priv Pointer to device private context struct - * aid can be 1 t0 UNIFI_MAX_CONNECTIONS & 0 means multicast/broadcast - * setTim value SET(1) / RESET(0) - * interfaceTag the interfaceID on which activity going on - * handle from (0 <= handle < UNIFI_MAX_CONNECTIONS) - * - * --------------------------------------------------------------------------- - */ -void update_tim(unifi_priv_t * priv, u16 aid, u8 setTim, u16 interfaceTag, u32 handle) -{ - CSR_SIGNAL signal; - s32 r; - CSR_MLME_SET_TIM_REQUEST *req = &signal.u.MlmeSetTimRequest; - bulk_data_param_t *bulkdata = NULL; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - u8 senderIdLsb = 0; - CsrWifiRouterCtrlStaInfo_t *staRecord = NULL; - u32 oldTimSetStatus = 0, timSetStatus = 0; - - unifi_trace(priv, UDBG5, "entering the update_tim routine\n"); - - - if (handle == 0xFFFFFFFF) { - handle &= CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE; - if (setTim == interfacePriv->bcTimSet) - { - unifi_trace(priv, UDBG3, "update_tim, Drop:Hdl=%x, timval=%d, globalTim=%d\n", handle, setTim, interfacePriv->bcTimSet); - return; - } - } else if ((handle != 0xFFFFFFFF) && (handle >= UNIFI_MAX_CONNECTIONS)) { - unifi_warning(priv, "bad station Handle = %x\n", handle); - return; - } - - if (setTim) { - timSetStatus = CSR_WIFI_TIM_SETTING; - } else { - timSetStatus = CSR_WIFI_TIM_RESETTING; - } - - if (handle != CSR_WIFI_BROADCAST_OR_MULTICAST_HANDLE) { - if ((staRecord = ((CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[handle]))) == NULL) { - unifi_warning(priv, "station record is NULL in update_tim: handle = %x :debug\n", handle); - return; - } - /* In case of signal sending failed, revert back to old state */ - oldTimSetStatus = staRecord->timSet; - staRecord->timSet = timSetStatus; - } - - /* pack senderID LSB */ - senderIdLsb = CSR_WIFI_PACK_SENDER_ID_LSB_FOR_TIM_REQ(handle, timSetStatus); - - /* initialize signal to zero */ - memset(&signal, 0, sizeof(CSR_SIGNAL)); - - /* Frame the MLME-SET-TIM request */ - signal.SignalPrimitiveHeader.SignalId = CSR_MLME_SET_TIM_REQUEST_ID; - signal.SignalPrimitiveHeader.ReceiverProcessId = 0; - CSR_COPY_UINT16_TO_LITTLE_ENDIAN(((priv->netdev_client->sender_id & 0xff00) | senderIdLsb), - (u8*)&signal.SignalPrimitiveHeader.SenderProcessId); - - /* set The virtual interfaceIdentifier, aid, tim value */ - req->VirtualInterfaceIdentifier = uf_get_vif_identifier(interfacePriv->interfaceMode, interfaceTag); - req->AssociationId = aid; - req->TimValue = setTim; - - - unifi_trace(priv, UDBG2, "update_tim:AID %x,senderIdLsb = 0x%x, handle = 0x%x, timSetStatus = %x, sender proceesID = %x \n", - aid, senderIdLsb, handle, timSetStatus, signal.SignalPrimitiveHeader.SenderProcessId); - - /* Send the signal to UniFi */ - r = ul_send_signal_unpacked(priv, &signal, bulkdata); - if (r) { - /* No need to free bulk data, as TIM request doesn't carries any data */ - unifi_error(priv, "Error queueing CSR_MLME_SET_TIM_REQUEST signal\n"); - if (staRecord) { - staRecord->timSet = oldTimSetStatus ; - } - else - { - /* MLME_SET_TIM.req sending failed here for AID0, so revert back our bcTimSet status */ - interfacePriv->bcTimSet = !setTim; - } - } - else { - /* Update tim request pending flag and ensure no more TIM set requests are send - for the same station until TIM confirm is received */ - if (staRecord) { - staRecord->timRequestPendingFlag = TRUE; - } - else - { - /* Update tim request (for AID 0) pending flag and ensure no more DTIM set requests are send - * for the same station until TIM confirm is received - */ - interfacePriv->bcTimSetReqPendingFlag = TRUE; - } - } - unifi_trace(priv, UDBG5, "leaving the update_tim routine\n"); -} - -static -void process_peer_active_transition(unifi_priv_t * priv, - CsrWifiRouterCtrlStaInfo_t *staRecord, - u16 interfaceTag) -{ - int r, i; - u8 spaceAvail[4] = {TRUE, TRUE, TRUE, TRUE}; - tx_buffered_packets_t * buffered_pkt = NULL; - unsigned long lock_flags; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - unifi_trace(priv, UDBG5, "entering process_peer_active_transition\n"); - - if(IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag)) { - /* giving more priority to multicast packets so delaying unicast packets*/ - unifi_trace(priv, UDBG2, "Multicast transmission is going on so resume unicast transmission after DTIM over\n"); - - /* As station is active now, even though AP is not able to send frames to it - * because of DTIM, it needs to reset the TIM here - */ - if (!staRecord->timRequestPendingFlag){ - if((staRecord->timSet == CSR_WIFI_TIM_SET) || (staRecord->timSet == CSR_WIFI_TIM_SETTING)){ - update_tim(priv, staRecord->aid, 0, interfaceTag, staRecord->assignedHandle); - } - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 0; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - return; - } - while((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->mgtFrames))) { - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, 0, FALSE)) == -ENOSPC) { - unifi_trace(priv, UDBG2, "p_p_a_t:(ENOSPC) Mgt Frame queueing \n"); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->mgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[3]=(u8)(staRecord->assignedHandle); - spaceAvail[3] = FALSE; - break; - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - if (!staRecord->timRequestPendingFlag) { - if (staRecord->txSuspend) { - if(staRecord->timSet == CSR_WIFI_TIM_SET) { - update_tim(priv, staRecord->aid, 0, interfaceTag, staRecord->assignedHandle); - } - return; - } - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 0; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - for(i=3;i>=0;i--) { - if(!spaceAvail[i]) - continue; - unifi_trace(priv, UDBG6, "p_p_a_t:data pkt sending for AC %d \n", i); - while((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->dataPdu[i]))) { - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, 0, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->dataPdu[i]); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[i]=(u8)(staRecord->assignedHandle); - break; - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - } - if (!staRecord->timRequestPendingFlag){ - if((staRecord->timSet == CSR_WIFI_TIM_SET) || (staRecord->timSet == CSR_WIFI_TIM_SETTING)) { - unifi_trace(priv, UDBG3, "p_p_a_t:resetting tim .....\n"); - update_tim(priv, staRecord->aid, 0, interfaceTag, staRecord->assignedHandle); - } - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 0; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - unifi_trace(priv, UDBG5, "leaving process_peer_active_transition\n"); -} - - - -void uf_process_ma_pkt_cfm_for_ap(unifi_priv_t *priv, u16 interfaceTag, const CSR_MA_PACKET_CONFIRM *pkt_cfm) -{ - netInterface_priv_t *interfacePriv; - u8 i; - CsrWifiRouterCtrlStaInfo_t *staRecord = NULL; - interfacePriv = priv->interfacePriv[interfaceTag]; - - - if(pkt_cfm->HostTag == interfacePriv->multicastPduHostTag) { - unifi_trace(priv, UDBG2, "CFM for marked Multicast Tag = %x\n", interfacePriv->multicastPduHostTag); - interfacePriv->multicastPduHostTag = 0xffffffff; - resume_suspended_uapsd(priv, interfaceTag); - resume_unicast_buffered_frames(priv, interfaceTag); - if(list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames) && - list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)) { - unifi_trace(priv, UDBG1, "Resetting multicastTIM"); - if (!interfacePriv->bcTimSetReqPendingFlag) - { - update_tim(priv, 0, CSR_WIFI_TIM_RESET, interfaceTag, 0xFFFFFFFF); - } - else - { - /* Cache the DTimSet value so that it will processed immidiatly after - * completing the current setDTim Request - */ - interfacePriv->bcTimSetReqQueued = CSR_WIFI_TIM_RESET; - unifi_trace(priv, UDBG2, "uf_process_ma_pkt_cfm_for_ap : One more UpdateDTim Request(%d) Queued \n", - interfacePriv->bcTimSetReqQueued); - } - - } - return; - } - - /* Check if it is a Confirm for null data frame used - * for probing station activity - */ - for(i =0; i < UNIFI_MAX_CONNECTIONS; i++) { - staRecord = (CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[i]); - if (staRecord && (staRecord->nullDataHostTag == pkt_cfm->HostTag)) { - - unifi_trace(priv, UDBG1, "CFM for Inactive probe Null frame (tag = %x, status = %d)\n", - pkt_cfm->HostTag, - pkt_cfm->TransmissionStatus - ); - staRecord->nullDataHostTag = INVALID_HOST_TAG; - - if(pkt_cfm->TransmissionStatus == CSR_TX_RETRY_LIMIT){ - u32 now; - u32 inactive_time; - - unifi_trace(priv, UDBG1, "Nulldata to probe STA ALIVE Failed with retry limit\n"); - /* Recheck if there is some activity after null data is sent. - * - * If still there is no activity then send a disconnected indication - * to SME to delete the station record. - */ - if (staRecord->activity_flag){ - return; - } - now = CsrTimeGet(NULL); - - if (staRecord->lastActivity > now) - { - /* simple timer wrap (for 1 wrap) */ - inactive_time = CsrTimeAdd((u32)CsrTimeSub(CSR_SCHED_TIME_MAX, staRecord->lastActivity), - now); - } - else - { - inactive_time = (u32)CsrTimeSub(now, staRecord->lastActivity); - } - - if (inactive_time >= STA_INACTIVE_TIMEOUT_VAL) - { - struct list_head send_cfm_list; - u8 j; - - /* The SME/NME may be waiting for confirmation for requested frames to this station. - * Though this is --VERY UNLIKELY-- in case of station in active mode. But still as a - * a defensive check, it loops through buffered frames for this station and if confirmation - * is requested, send auto confirmation with failure status. Also flush the frames so - * that these are not processed again in PEER_DEL_REQ handler. - */ - INIT_LIST_HEAD(&send_cfm_list); - - uf_prepare_send_cfm_list_for_queued_pkts(priv, - &send_cfm_list, - &(staRecord->mgtFrames)); - - uf_flush_list(priv, &(staRecord->mgtFrames)); - - for(j = 0; j < MAX_ACCESS_CATOGORY; j++){ - uf_prepare_send_cfm_list_for_queued_pkts(priv, - &send_cfm_list, - &(staRecord->dataPdu[j])); - - uf_flush_list(priv, &(staRecord->dataPdu[j])); - } - - send_auto_ma_packet_confirm(priv, staRecord->interfacePriv, &send_cfm_list); - - - - unifi_warning(priv, "uf_process_ma_pkt_cfm_for_ap: Router Disconnected IND Peer (%x-%x-%x-%x-%x-%x)\n", - staRecord->peerMacAddress.a[0], - staRecord->peerMacAddress.a[1], - staRecord->peerMacAddress.a[2], - staRecord->peerMacAddress.a[3], - staRecord->peerMacAddress.a[4], - staRecord->peerMacAddress.a[5]); - - CsrWifiRouterCtrlConnectedIndSend(priv->CSR_WIFI_SME_IFACEQUEUE, - 0, - staRecord->interfacePriv->InterfaceTag, - staRecord->peerMacAddress, - CSR_WIFI_ROUTER_CTRL_PEER_DISCONNECTED); - } - - } - else if (pkt_cfm->TransmissionStatus == CSR_TX_SUCCESSFUL) - { - staRecord->activity_flag = TRUE; - } - } - } -} - -#endif -u16 uf_get_vif_identifier (CsrWifiRouterCtrlMode mode, u16 tag) -{ - switch(mode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_STA: - case CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI: - return (0x02<<8|tag); - - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - return (0x03<<8|tag); - - case CSR_WIFI_ROUTER_CTRL_MODE_IBSS: - return (0x01<<8|tag); - - case CSR_WIFI_ROUTER_CTRL_MODE_MONITOR: - return (0x04<<8|tag); - case CSR_WIFI_ROUTER_CTRL_MODE_AMP: - return (0x05<<8|tag); - default: - return tag; - } -} - -#ifdef CSR_SUPPORT_SME - -/* - * --------------------------------------------------------------------------- - * update_macheader - * - * - * These functions updates mac header for intra BSS packet - * routing. - * NOTE: This function always has to be called in rx context which - * is in bh thread context since GFP_KERNEL is used. In soft IRQ/ Interrupt - * context shouldn't be used - * - * Arguments: - * priv Pointer to device private context struct - * skb Socket buffer containing data packet to transmit - * newSkb Socket buffer containing data packet + Mac header if no sufficient headroom in skb - * priority to append QOS control header in Mac header - * bulkdata if newSkb allocated then bulkdata updated to send to unifi - * interfaceTag the interfaceID on which activity going on - * macHeaderLengthInBytes no. of bytes of mac header in received frame - * qosDestination used to append Qos control field - * - * Returns: - * Zero on success or -1 on error. - * --------------------------------------------------------------------------- - */ - -static int update_macheader(unifi_priv_t *priv, struct sk_buff *skb, - struct sk_buff *newSkb, CSR_PRIORITY *priority, - bulk_data_param_t *bulkdata, u16 interfaceTag, - u8 macHeaderLengthInBytes, - u8 qosDestination) -{ - - u16 *fc = NULL; - u8 direction = 0, toDs, fromDs; - u8 *bufPtr = NULL; - u8 sa[ETH_ALEN], da[ETH_ALEN]; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - int headroom; - u8 macHeaderBuf[IEEE802_11_DATA_FRAME_MAC_HEADER_SIZE] = {0}; - - unifi_trace(priv, UDBG5, "entering the update_macheader function\n"); - - /* temporary buffer for the Mac header storage */ - memcpy(macHeaderBuf, skb->data, macHeaderLengthInBytes); - - /* remove the Macheader from the skb */ - skb_pull(skb, macHeaderLengthInBytes); - - /* get the skb headroom for skb_push check */ - headroom = skb_headroom(skb); - - /* pointer to frame control field */ - fc = (u16*) macHeaderBuf; - - toDs = (*fc & cpu_to_le16(IEEE802_11_FC_TO_DS_MASK))?1 : 0; - fromDs = (*fc & cpu_to_le16(IEEE802_11_FC_FROM_DS_MASK))? 1: 0; - unifi_trace(priv, UDBG5, "In update_macheader function, fromDs = %x, toDs = %x\n", fromDs, toDs); - direction = ((fromDs | (toDs << 1)) & 0x3); - - /* Address1 or 3 from the macheader */ - memcpy(da, macHeaderBuf+4+toDs*12, ETH_ALEN); - /* Address2, 3 or 4 from the mac header */ - memcpy(sa, macHeaderBuf+10+fromDs*(6+toDs*8), ETH_ALEN); - - unifi_trace(priv, UDBG3, "update_macheader:direction = %x\n", direction); - /* update the toDs, fromDs & address fields in Mac header */ - switch(direction) - { - case 2: - /* toDs = 1 & fromDs = 0 , toAp when frames received from peer - * while sending this packet to Destination the Mac header changed - * as fromDs = 1 & toDs = 0, fromAp - */ - *fc &= cpu_to_le16(~IEEE802_11_FC_TO_DS_MASK); - *fc |= cpu_to_le16(IEEE802_11_FC_FROM_DS_MASK); - /* Address1: MAC address of the actual destination (4 = 2+2) */ - memcpy(macHeaderBuf + 4, da, ETH_ALEN); - /* Address2: The MAC address of the AP (10 = 2+2+6) */ - memcpy(macHeaderBuf + 10, &interfacePriv->bssid, ETH_ALEN); - /* Address3: MAC address of the actual source from mac header (16 = 2+2+6+6) */ - memcpy(macHeaderBuf + 16, sa, ETH_ALEN); - break; - case 3: - unifi_trace(priv, UDBG3, "when both the toDs & fromDS set, NOT SUPPORTED\n"); - break; - default: - unifi_trace(priv, UDBG3, "problem in decoding packet in update_macheader \n"); - return -1; - } - - /* frameType is Data always, Validation is done before calling this function */ - - /* check for the souce station type */ - switch(le16_to_cpu(*fc) & IEEE80211_FC_SUBTYPE_MASK) - { - case IEEE802_11_FC_TYPE_QOS_DATA & IEEE80211_FC_SUBTYPE_MASK: - /* No need to modify the qos control field */ - if (!qosDestination) { - - /* If source Sta is QOS enabled & if this bit set, then HTC is supported by - * peer station & htc field present in macHeader - */ - if (*fc & cpu_to_le16(IEEE80211_FC_ORDER_MASK)) { - /* HT control field present in Mac header - * 6 = sizeof(qosControl) + sizeof(htc) - */ - macHeaderLengthInBytes -= 6; - } else { - macHeaderLengthInBytes -= 2; - } - /* Destination STA is non qos so change subtype to DATA */ - *fc &= cpu_to_le16(~IEEE80211_FC_SUBTYPE_MASK); - *fc |= cpu_to_le16(IEEE802_11_FC_TYPE_DATA); - /* remove the qos control field & HTC(if present). new macHeaderLengthInBytes is less than old - * macHeaderLengthInBytes so no need to verify skb headroom - */ - if (headroom < macHeaderLengthInBytes) { - unifi_trace(priv, UDBG1, " sufficient headroom not there to push updated mac header \n"); - return -1; - } - bufPtr = (u8 *) skb_push(skb, macHeaderLengthInBytes); - - /* update bulk data os_data_ptr */ - bulkdata->d[0].os_data_ptr = skb->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)skb; - bulkdata->d[0].data_length = skb->len; - - } else { - /* pointing to QOS control field */ - u8 qc; - if (*fc & cpu_to_le16(IEEE80211_FC_ORDER_MASK)) { - qc = *((u8*)(macHeaderBuf + (macHeaderLengthInBytes - 4 - 2))); - } else { - qc = *((u8*)(macHeaderBuf + (macHeaderLengthInBytes - 2))); - } - - if ((qc & IEEE802_11_QC_TID_MASK) > 7) { - *priority = 7; - } else { - *priority = qc & IEEE802_11_QC_TID_MASK; - } - - unifi_trace(priv, UDBG1, "Incoming packet priority from QSTA is %x\n", *priority); - - if (headroom < macHeaderLengthInBytes) { - unifi_trace(priv, UDBG3, " sufficient headroom not there to push updated mac header \n"); - return -1; - } - bufPtr = (u8 *) skb_push(skb, macHeaderLengthInBytes); - } - break; - default: - { - bulk_data_param_t data_ptrs; - CsrResult csrResult; - unifi_trace(priv, UDBG5, "normal Data packet, NO QOS \n"); - - if (qosDestination) { - u8 qc = 0; - unifi_trace(priv, UDBG3, "destination is QOS station \n"); - - /* Set Ma-Packet.req UP to UP0 */ - *priority = CSR_QOS_UP0; - - /* prepare the qos control field */ - qc |= CSR_QOS_UP0; - /* no Amsdu is in ap buffer so eosp is left 0 */ - if (da[0] & 0x1) { - /* multicast/broadcast frames, no acknowledgement needed */ - qc |= 1 << 5; - } - - /* update new Mac header Length with 2 = sizeof(qos control) */ - macHeaderLengthInBytes += 2; - - /* received DATA frame but destiantion is QOS station so update subtype to QOS*/ - *fc &= cpu_to_le16(~IEEE80211_FC_SUBTYPE_MASK); - *fc |= cpu_to_le16(IEEE802_11_FC_TYPE_QOS_DATA); - - /* appendQosControlOffset = macHeaderLengthInBytes - 2, since source sta is not QOS */ - macHeaderBuf[macHeaderLengthInBytes - 2] = qc; - /* txopLimit is 0 */ - macHeaderBuf[macHeaderLengthInBytes - 1] = 0; - if (headroom < macHeaderLengthInBytes) { - csrResult = unifi_net_data_malloc(priv, &data_ptrs.d[0], skb->len + macHeaderLengthInBytes); - - if (csrResult != CSR_RESULT_SUCCESS) { - unifi_error(priv, " failed to allocate request_data. in update_macheader func\n"); - return -1; - } - newSkb = (struct sk_buff *)(data_ptrs.d[0].os_net_buf_ptr); - newSkb->len = skb->len + macHeaderLengthInBytes; - - memcpy((void*)data_ptrs.d[0].os_data_ptr + macHeaderLengthInBytes, - skb->data, skb->len); - - bulkdata->d[0].os_data_ptr = newSkb->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)newSkb; - bulkdata->d[0].data_length = newSkb->len; - - bufPtr = (u8*)data_ptrs.d[0].os_data_ptr; - - /* The old skb will not be used again */ - kfree_skb(skb); - } else { - /* skb headroom is sufficient to append Macheader */ - bufPtr = (u8*)skb_push(skb, macHeaderLengthInBytes); - bulkdata->d[0].os_data_ptr = skb->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)skb; - bulkdata->d[0].data_length = skb->len; - } - } else { - unifi_trace(priv, UDBG3, "destination is not a QSTA\n"); - if (headroom < macHeaderLengthInBytes) { - csrResult = unifi_net_data_malloc(priv, &data_ptrs.d[0], skb->len + macHeaderLengthInBytes); - - if (csrResult != CSR_RESULT_SUCCESS) { - unifi_error(priv, " failed to allocate request_data. in update_macheader func\n"); - return -1; - } - newSkb = (struct sk_buff *)(data_ptrs.d[0].os_net_buf_ptr); - newSkb->len = skb->len + macHeaderLengthInBytes; - - memcpy((void*)data_ptrs.d[0].os_data_ptr + macHeaderLengthInBytes, - skb->data, skb->len); - - bulkdata->d[0].os_data_ptr = newSkb->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)newSkb; - bulkdata->d[0].data_length = newSkb->len; - - bufPtr = (u8*)data_ptrs.d[0].os_data_ptr; - - /* The old skb will not be used again */ - kfree_skb(skb); - } else { - /* skb headroom is sufficient to append Macheader */ - bufPtr = (u8*)skb_push(skb, macHeaderLengthInBytes); - bulkdata->d[0].os_data_ptr = skb->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)skb; - bulkdata->d[0].data_length = skb->len; - } - } - } - } - - /* prepare the complete skb, by pushing the MAC header to the beginning of the skb->data */ - unifi_trace(priv, UDBG5, "updated Mac Header: %d \n", macHeaderLengthInBytes); - memcpy(bufPtr, macHeaderBuf, macHeaderLengthInBytes); - - unifi_trace(priv, UDBG5, "leaving the update_macheader function\n"); - return 0; -} -/* - * --------------------------------------------------------------------------- - * uf_ap_process_data_pdu - * - * - * Takes care of intra BSS admission control & routing packets within BSS - * - * Arguments: - * priv Pointer to device private context struct - * skb Socket buffer containing data packet to transmit - * ehdr ethernet header to fetch priority of packet - * srcStaInfo source stations record for connection verification - * packed_signal - * signal_len - * signal MA-PACKET.indication signal - * bulkdata if newSkb allocated then bulkdata updated to send to unifi - * macHeaderLengthInBytes no. of bytes of mac header in received frame - * - * Returns: - * Zero on success(ap processing complete) or -1 if packet also have to be sent to NETDEV. - * --------------------------------------------------------------------------- - */ -int -uf_ap_process_data_pdu(unifi_priv_t *priv, struct sk_buff *skb, - struct ethhdr *ehdr, CsrWifiRouterCtrlStaInfo_t * srcStaInfo, - const CSR_SIGNAL *signal, - bulk_data_param_t *bulkdata, - u8 macHeaderLengthInBytes) -{ - const CSR_MA_PACKET_INDICATION *ind = &(signal->u.MaPacketIndication); - u16 interfaceTag = (ind->VirtualInterfaceIdentifier & 0x00ff); - struct sk_buff *newSkb = NULL; - /* pointer to skb or private skb created using skb_copy() */ - struct sk_buff *skbPtr = skb; - u8 sendToNetdev = FALSE; - u8 qosDestination = FALSE; - CSR_PRIORITY priority = CSR_CONTENTION; - CsrWifiRouterCtrlStaInfo_t *dstStaInfo = NULL; - netInterface_priv_t *interfacePriv; - - unifi_trace(priv, UDBG5, "entering uf_ap_process_data_pdu %d\n", macHeaderLengthInBytes); - /* InterfaceTag validation from MA_PACKET.indication */ - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_trace(priv, UDBG1, "Interface Tag is Invalid in uf_ap_process_data_pdu\n"); - unifi_net_data_free(priv, &bulkdata->d[0]); - return 0; - } - interfacePriv = priv->interfacePriv[interfaceTag]; - - if((interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_P2PGO) && - (interfacePriv->intraBssEnabled == FALSE)) { - unifi_trace(priv, UDBG2, "uf_ap_process_data_pdu:P2P GO intrabssEnabled?= %d\n", interfacePriv->intraBssEnabled); - - /*In P2P GO case, if intraBSS distribution Disabled then don't do IntraBSS routing */ - /* If destination in our BSS then drop otherwise give packet to netdev */ - dstStaInfo = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, ehdr->h_dest, interfaceTag); - if (dstStaInfo) { - unifi_net_data_free(priv, &bulkdata->d[0]); - return 0; - } - /* May be associated P2PCLI trying to send the packets on backbone (Netdev) */ - return -1; - } - - if(!memcmp(ehdr->h_dest, interfacePriv->bssid.a, ETH_ALEN)) { - /* This packet will be given to the TCP/IP stack since this packet is for us(AP) - * No routing needed */ - unifi_trace(priv, UDBG4, "destination address is csr_ap\n"); - return -1; - } - - /* fetch the destination record from station record database */ - dstStaInfo = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, ehdr->h_dest, interfaceTag); - - /* AP mode processing, & if packet is unicast */ - if(!dstStaInfo) { - if (!(ehdr->h_dest[0] & 0x1)) { - /* destination not in station record & its a unicast packet, so pass the packet to network stack */ - unifi_trace(priv, UDBG3, "unicast frame & destination record not exist, send to netdev proto = %x\n", htons(skb->protocol)); - return -1; - } else { - /* packet is multicast/broadcast */ - /* copy the skb to skbPtr, send skb to netdev & skbPtr to multicast/broad cast list */ - unifi_trace(priv, UDBG5, "skb_copy, in uf_ap_process_data_pdu, protocol = %x\n", htons(skb->protocol)); - skbPtr = skb_copy(skb, GFP_KERNEL); - if(skbPtr == NULL) { - /* We don't have memory to don't send the frame in BSS*/ - unifi_notice(priv, "broacast/multicast frame can't be sent in BSS No memeory: proto = %x\n", htons(skb->protocol)); - return -1; - } - sendToNetdev = TRUE; - } - } else { - - /* validate the Peer & Destination Station record */ - if (uf_process_station_records_for_sending_data(priv, interfaceTag, srcStaInfo, dstStaInfo)) { - unifi_notice(priv, "uf_ap_process_data_pdu: station record validation failed \n"); - interfacePriv->stats.rx_errors++; - unifi_net_data_free(priv, &bulkdata->d[0]); - return 0; - } - } - - /* BroadCast packet received and it's been sent as non QOS packets. - * Since WMM spec not mandates broadcast/multicast to be sent as QOS data only, - * if all Peers are QSTA - */ - if(sendToNetdev) { - /* BroadCast packet and it's been sent as non QOS packets */ - qosDestination = FALSE; - } else if(dstStaInfo && (dstStaInfo->wmmOrQosEnabled == TRUE)) { - qosDestination = TRUE; - } - - unifi_trace(priv, UDBG3, "uf_ap_process_data_pdu QoS destination = %s\n", (qosDestination)? "TRUE": "FALSE"); - - /* packet is allowed to send to unifi, update the Mac header */ - if (update_macheader(priv, skbPtr, newSkb, &priority, bulkdata, interfaceTag, macHeaderLengthInBytes, qosDestination)) { - interfacePriv->stats.rx_errors++; - unifi_notice(priv, "(Packet Drop) failed to update the Mac header in uf_ap_process_data_pdu\n"); - if (sendToNetdev) { - /* Free's the skb_copy(skbPtr) data since packet processing failed */ - bulkdata->d[0].os_data_ptr = skbPtr->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)skbPtr; - bulkdata->d[0].data_length = skbPtr->len; - unifi_net_data_free(priv, &bulkdata->d[0]); - } - return -1; - } - - unifi_trace(priv, UDBG3, "Mac Header updated...calling uf_process_ma_packet_req \n"); - - /* Packet is ready to send to unifi ,transmissionControl = 0x0004, confirmation is not needed for data packets */ - if (uf_process_ma_packet_req(priv, ehdr->h_dest, 0xffffffff, interfaceTag, CSR_NO_CONFIRM_REQUIRED, (CSR_RATE)0, priority, priv->netdev_client->sender_id, bulkdata)) { - if (sendToNetdev) { - unifi_trace(priv, UDBG1, "In uf_ap_process_data_pdu, (Packet Drop) uf_process_ma_packet_req failed. freeing skb_copy data (original data sent to Netdev)\n"); - /* Free's the skb_copy(skbPtr) data since packet processing failed */ - bulkdata->d[0].os_data_ptr = skbPtr->data; - bulkdata->d[0].os_net_buf_ptr = (unsigned char*)skbPtr; - bulkdata->d[0].data_length = skbPtr->len; - unifi_net_data_free(priv, &bulkdata->d[0]); - } else { - /* This free's the skb data */ - unifi_trace(priv, UDBG1, "In uf_ap_process_data_pdu, (Packet Drop). Unicast data so freeing original skb \n"); - unifi_net_data_free(priv, &bulkdata->d[0]); - } - } - unifi_trace(priv, UDBG5, "leaving uf_ap_process_data_pdu\n"); - - if (sendToNetdev) { - /* The packet is multicast/broadcast, so after AP processing packet has to - * be sent to netdev, if peer port state is open - */ - unifi_trace(priv, UDBG4, "Packet will be routed to NetDev\n"); - return -1; - } - /* Ap handled the packet & its a unicast packet, no need to send to netdev */ - return 0; -} - -#endif - -CsrResult uf_process_ma_packet_req(unifi_priv_t *priv, - u8 *peerMacAddress, - CSR_CLIENT_TAG hostTag, - u16 interfaceTag, - CSR_TRANSMISSION_CONTROL transmissionControl, - CSR_RATE TransmitRate, - CSR_PRIORITY priority, - CSR_PROCESS_ID leSenderProcessId, - bulk_data_param_t *bulkdata) -{ - CsrResult status = CSR_RESULT_SUCCESS; - CSR_SIGNAL signal; - int result; -#ifdef CSR_SUPPORT_SME - CsrWifiRouterCtrlStaInfo_t *staRecord = NULL; - const u8 *macHdrLocation = bulkdata->d[0].os_data_ptr; - CsrWifiPacketType pktType; - int frameType = 0; - u8 queuePacketDozing = FALSE; - u32 priority_q; - u16 frmCtrl; - struct list_head * list = NULL; /* List to which buffered PDUs are to be enqueued*/ - u8 setBcTim=FALSE; - netInterface_priv_t *interfacePriv; - u8 requeueOnSamePos = FALSE; - u32 handle = 0xFFFFFFFF; - unsigned long lock_flags; - - unifi_trace(priv, UDBG5, - "entering uf_process_ma_packet_req, peer: %pMF\n", - peerMacAddress); - - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_error(priv, "interfaceTag >= CSR_WIFI_NUM_INTERFACES, interfacetag = %d\n", interfaceTag); - return CSR_RESULT_FAILURE; - } - interfacePriv = priv->interfacePriv[interfaceTag]; - - - /* fetch the station record for corresponding peer mac address */ - if ((staRecord = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, peerMacAddress, interfaceTag))) { - handle = staRecord->assignedHandle; - } - - /* Frame ma-packet.req, this is saved/transmitted depend on queue state */ - unifi_frame_ma_packet_req(priv, priority, TransmitRate, hostTag, - interfaceTag, transmissionControl, leSenderProcessId, - peerMacAddress, &signal); - - /* Since it's common path between STA & AP mode, in case of STA packet - * need not to be queued but in AP case we have to queue PDU's in - * different scenarios - */ - switch(interfacePriv->interfaceMode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - /* For this mode processing done below */ - break; - default: - /* In case of STA/IBSS/P2PCLI/AMP, no checks needed send the packet down & return */ - unifi_trace(priv, UDBG5, "In %s, interface mode is %x \n", __FUNCTION__, interfacePriv->interfaceMode); - if (interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_NONE) { - unifi_warning(priv, "In %s, interface mode NONE \n", __FUNCTION__); - } - if ((result = ul_send_signal_unpacked(priv, &signal, bulkdata))) { - status = CSR_RESULT_FAILURE; - } - return status; - } - - /* -----Only AP/P2pGO mode handling falls below----- */ - - /* convert priority to queue */ - priority_q = unifi_frame_priority_to_queue((CSR_PRIORITY) priority); - - /* check the powersave status of the peer */ - if (staRecord && (staRecord->currentPeerState == - CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE)) { - /* Peer is dozing & packet have to be delivered, so buffer the packet & - * update the TIM - */ - queuePacketDozing = TRUE; - } - - /* find the type of frame unicast or mulicast/broadcast */ - if (*peerMacAddress & 0x1) { - /* Multicast/broadCast data are always triggered by vif_availability.ind - * at the DTIM - */ - pktType = CSR_WIFI_MULTICAST_PDU; - } else { - pktType = CSR_WIFI_UNICAST_PDU; - } - - /* Fetch the frame control field from mac header & check for frame type */ - frmCtrl = CSR_GET_UINT16_FROM_LITTLE_ENDIAN(macHdrLocation); - - /* Processing done according to Frame/Packet type */ - frameType = ((frmCtrl & 0x000c) >> FRAME_CONTROL_TYPE_FIELD_OFFSET); - switch(frameType) - { - case IEEE802_11_FRAMETYPE_MANAGEMENT: - - switch(pktType) - { - case CSR_WIFI_UNICAST_PDU: - unifi_trace(priv, UDBG5, "management unicast PDU in uf_process_ma_packet_req \n"); - /* push the packet in to the queue with appropriate mgt list */ - if (!staRecord) { - /* push the packet to the unifi if list is empty (if packet lost how to re-enque) */ - if (list_empty(&interfacePriv->genericMgtFrames)) { -#ifdef CSR_SUPPORT_SME - if(!(IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag))) { -#endif - - unifi_trace(priv, UDBG3, "genericMgtFrames list is empty uf_process_ma_packet_req \n"); - result = ul_send_signal_unpacked(priv, &signal, bulkdata); - /* reque only on ENOSPC */ - if(result == -ENOSPC) { - /* requeue the failed packet to genericMgtFrame with same position */ - unifi_trace(priv, UDBG1, "(ENOSPC) Sending genericMgtFrames Failed so buffering\n"); - list = &interfacePriv->genericMgtFrames; - requeueOnSamePos = TRUE; - } -#ifdef CSR_SUPPORT_SME - }else{ - list = &interfacePriv->genericMgtFrames; - unifi_trace(priv, UDBG3, "genericMgtFrames queue empty and dtim started\n hosttag is 0x%x,\n", signal.u.MaPacketRequest.HostTag); - update_eosp_to_head_of_broadcast_list_head(priv, interfaceTag); - } -#endif - } else { - /* Queue the packet to genericMgtFrame of unifi_priv_t data structure */ - list = &interfacePriv->genericMgtFrames; - unifi_trace(priv, UDBG2, "genericMgtFrames queue not empty\n"); - } - } else { - /* check peer power state */ - if (queuePacketDozing || !list_empty(&staRecord->mgtFrames) || IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag)) { - /* peer is in dozing mode, so queue packet in mgt frame list of station record */ - /*if multicast traffic is going on, buffer the unicast packets*/ - list = &staRecord->mgtFrames; - - unifi_trace(priv, UDBG1, "staRecord->MgtFrames list empty? = %s, handle = %d, queuePacketDozing = %d\n", - (list_empty(&staRecord->mgtFrames))? "YES": "NO", staRecord->assignedHandle, queuePacketDozing); - if(IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag)){ - update_eosp_to_head_of_broadcast_list_head(priv, interfaceTag); - } - - } else { - unifi_trace(priv, UDBG5, "staRecord->mgtFrames list is empty uf_process_ma_packet_req \n"); - result = ul_send_signal_unpacked(priv, &signal, bulkdata); - if(result == -ENOSPC) { - /* requeue the failed packet to staRecord->mgtFrames with same position */ - list = &staRecord->mgtFrames; - requeueOnSamePos = TRUE; - unifi_trace(priv, UDBG1, "(ENOSPC) Sending MgtFrames Failed handle = %d so buffering\n", staRecord->assignedHandle); - priv->pausedStaHandle[0]=(u8)(staRecord->assignedHandle); - } else if (result) { - status = CSR_RESULT_FAILURE; - } - } - } - break; - case CSR_WIFI_MULTICAST_PDU: - unifi_trace(priv, UDBG5, "management multicast/broadcast PDU in uf_process_ma_packet_req 'QUEUE it' \n"); - /* Queue the packet to genericMulticastOrBroadCastMgtFrames of unifi_priv_t data structure - * will be sent when we receive VIF AVAILABILITY from firmware as part of DTIM - */ - - list = &interfacePriv->genericMulticastOrBroadCastMgtFrames; - if((interfacePriv->interfaceMode != CSR_WIFI_ROUTER_CTRL_MODE_IBSS) && - (list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames))) { - setBcTim=TRUE; - } - break; - default: - unifi_error(priv, "condition never meets: packet type unrecognized\n"); - } - break; - case IEEE802_11_FRAMETYPE_DATA: - switch(pktType) - { - case CSR_WIFI_UNICAST_PDU: - unifi_trace(priv, UDBG5, "data unicast PDU in uf_process_ma_packet_req \n"); - /* check peer power state, list status & peer port status */ - if(!staRecord) { - unifi_error(priv, "In %s unicast but staRecord = NULL\n", __FUNCTION__); - return CSR_RESULT_FAILURE; - } else if (queuePacketDozing || isRouterBufferEnabled(priv, priority_q)|| !list_empty(&staRecord->dataPdu[priority_q]) || IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag)) { - /* peer is in dozing mode, so queue packet in mgt frame list of station record */ - /* if multicast traffic is going on, buffet the unicast packets */ - unifi_trace(priv, UDBG2, "Enqueued to staRecord->dataPdu[%d] queuePacketDozing=%d,\ - Buffering enabled = %d \n", priority_q, queuePacketDozing, isRouterBufferEnabled(priv, priority_q)); - list = &staRecord->dataPdu[priority_q]; - } else { - unifi_trace(priv, UDBG5, "staRecord->dataPdu[%d] list is empty uf_process_ma_packet_req \n", priority_q); - /* Pdu allowed to send to unifi */ - result = ul_send_signal_unpacked(priv, &signal, bulkdata); - if(result == -ENOSPC) { - /* requeue the failed packet to staRecord->dataPdu[priority_q] with same position */ - unifi_trace(priv, UDBG1, "(ENOSPC) Sending Unicast DataPDU to queue %d Failed so buffering\n", priority_q); - requeueOnSamePos = TRUE; - list = &staRecord->dataPdu[priority_q]; - priv->pausedStaHandle[priority_q]=(u8)(staRecord->assignedHandle); - if(!isRouterBufferEnabled(priv, priority_q)) { - unifi_error(priv, "Buffering Not enabled for queue %d \n", priority_q); - } - } else if (result) { - status = CSR_RESULT_FAILURE; - } - } - break; - case CSR_WIFI_MULTICAST_PDU: - unifi_trace(priv, UDBG5, "data multicast/broadcast PDU in uf_process_ma_packet_req \n"); - /* Queue the packet to genericMulticastOrBroadCastFrames list of unifi_priv_t data structure - * will be sent when we receive VIF AVAILABILITY from firmware as part of DTIM - */ - list = &interfacePriv->genericMulticastOrBroadCastFrames; - if(list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)) { - setBcTim = TRUE; - } - break; - default: - unifi_error(priv, "condition never meets: packet type un recognized\n"); - } - break; - default: - unifi_error(priv, "unrecognized frame type\n"); - } - if(list) { - status = enque_tx_data_pdu(priv, bulkdata, list, &signal, requeueOnSamePos); - /* Record no. of packet queued for each peer */ - if (staRecord && (pktType == CSR_WIFI_UNICAST_PDU) && (!status)) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staRecord->noOfPktQueued++; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - else if ((pktType == CSR_WIFI_MULTICAST_PDU) && (!status)) - { - /* If broadcast Tim is set && queuing is successful, then only update TIM */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - interfacePriv->noOfbroadcastPktQueued++; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - } - /* If broadcast Tim is set && queuing is successful, then only update TIM */ - if(setBcTim && !status) { - unifi_trace(priv, UDBG3, "tim set due to broadcast pkt\n"); - if (!interfacePriv->bcTimSetReqPendingFlag) - { - update_tim(priv, 0, CSR_WIFI_TIM_SET, interfaceTag, handle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - interfacePriv->bcTimSetReqQueued = CSR_WIFI_TIM_SET; - unifi_trace(priv, UDBG2, "uf_process_ma_packet_req : One more UpdateDTim Request(:%d) Queued \n", - interfacePriv->bcTimSetReqQueued); - } - } else if(staRecord && staRecord->currentPeerState == - CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE) { - if(staRecord->timSet == CSR_WIFI_TIM_RESET || staRecord->timSet == CSR_WIFI_TIM_RESETTING) { - if(!staRecord->wmmOrQosEnabled) { - if(!list_empty(&staRecord->mgtFrames) || - !list_empty(&staRecord->dataPdu[3]) || - !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION])) { - unifi_trace(priv, UDBG3, "tim set due to unicast pkt & peer in powersave\n"); - if (!staRecord->timRequestPendingFlag){ - update_tim(priv, staRecord->aid, 1, interfaceTag, handle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 1; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - } - } else { - /* Check for non delivery enable(i.e trigger enable), all delivery enable & legacy AC for TIM update in firmware */ - u8 allDeliveryEnabled = 0, dataAvailable = 0; - /* Check if all AC's are Delivery Enabled */ - is_all_ac_deliver_enabled_and_moredata(staRecord, &allDeliveryEnabled, &dataAvailable); - if (uf_is_more_data_for_non_delivery_ac(staRecord) || (allDeliveryEnabled && dataAvailable) - || (!list_empty(&staRecord->mgtFrames))) { - if (!staRecord->timRequestPendingFlag) { - update_tim(priv, staRecord->aid, 1, interfaceTag, handle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 1; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - } - } - } - } - - if((list) && (pktType == CSR_WIFI_UNICAST_PDU && !queuePacketDozing) && !(isRouterBufferEnabled(priv, priority_q)) && !(IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag))) { - unifi_trace(priv, UDBG2, "buffering cleared for queue = %d So resending buffered frames\n", priority_q); - uf_send_buffered_frames(priv, priority_q); - } - unifi_trace(priv, UDBG5, "leaving uf_process_ma_packet_req \n"); - return status; -#else -#ifdef CSR_NATIVE_LINUX - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_error(priv, "interfaceTag >= CSR_WIFI_NUM_INTERFACES, interfacetag = %d\n", interfaceTag); - return CSR_RESULT_FAILURE; - } - /* Frame ma-packet.req, this is saved/transmitted depend on queue state */ - unifi_frame_ma_packet_req(priv, priority, TransmitRate, hostTag, interfaceTag, - transmissionControl, leSenderProcessId, - peerMacAddress, &signal); - result = ul_send_signal_unpacked(priv, &signal, bulkdata); - if (result) { - return CSR_RESULT_FAILURE; - } -#endif - return status; -#endif -} - -#ifdef CSR_SUPPORT_SME -s8 uf_get_protection_bit_from_interfacemode(unifi_priv_t *priv, u16 interfaceTag, const u8 *daddr) -{ - s8 protection = 0; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - switch(interfacePriv->interfaceMode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_STA: - case CSR_WIFI_ROUTER_CTRL_MODE_P2PCLI: - case CSR_WIFI_ROUTER_CTRL_MODE_AMP: - case CSR_WIFI_ROUTER_CTRL_MODE_IBSS: - protection = interfacePriv->protect; - break; - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - { - CsrWifiRouterCtrlStaInfo_t *dstStaInfo = NULL; - if (daddr[0] & 0x1) { - unifi_trace(priv, UDBG3, "broadcast/multicast packet in send_ma_pkt_request\n"); - /* In this mode, the protect member of priv structure has an information of how - * AP/P2PGO has started, & the member updated in set mode request for AP/P2PGO - */ - protection = interfacePriv->protect; - } else { - /* fetch the destination record from station record database */ - dstStaInfo = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, daddr, interfaceTag); - if (!dstStaInfo) { - unifi_trace(priv, UDBG3, "peer not found in station record in send_ma_pkt_request\n"); - return -1; - } - protection = dstStaInfo->protection; - } - } - break; - default: - unifi_trace(priv, UDBG2, "mode unknown in send_ma_pkt_request\n"); - } - return protection; -} -#endif -#ifdef CSR_SUPPORT_SME -u8 send_multicast_frames(unifi_priv_t *priv, u16 interfaceTag) -{ - int r; - tx_buffered_packets_t * buffered_pkt = NULL; - u8 moreData = FALSE; - u8 pduSent =0; - unsigned long lock_flags; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - u32 hostTag = 0xffffffff; - - if(!isRouterBufferEnabled(priv, UNIFI_TRAFFIC_Q_VO)) { - while((interfacePriv->dtimActive)&& (buffered_pkt=dequeue_tx_data_pdu(priv, &interfacePriv->genericMulticastOrBroadCastMgtFrames))) { - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK); - moreData = (buffered_pkt->transmissionControl & TRANSMISSION_CONTROL_EOSP_MASK)?FALSE:TRUE; - - - unifi_trace(priv, UDBG2, "DTIM Occurred for interface:sending Mgt packet %d\n", interfaceTag); - - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, NULL, moreData, FALSE)) == -ENOSPC) { - unifi_trace(priv, UDBG1, "frame_and_send_queued_pdu failed with ENOSPC for host tag = %x\n", buffered_pkt->hostTag); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &interfacePriv->genericMulticastOrBroadCastMgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - break; - } else { - unifi_trace(priv, UDBG1, "send_multicast_frames: Send genericMulticastOrBroadCastMgtFrames (%x, %x)\n", - buffered_pkt->hostTag, - r); - if(r) { - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - if(!moreData) { - - interfacePriv->dtimActive = FALSE; - if(!r) { - hostTag = buffered_pkt->hostTag; - pduSent++; - } else { - send_vif_availibility_rsp(priv, uf_get_vif_identifier(interfacePriv->interfaceMode, interfaceTag), CSR_RC_UNSPECIFIED_FAILURE); - } - } - /* Buffered frame sent successfully */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - interfacePriv->noOfbroadcastPktQueued--; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - kfree(buffered_pkt); - } - - } - } - if(!isRouterBufferEnabled(priv, UNIFI_TRAFFIC_Q_CONTENTION)) { - while((interfacePriv->dtimActive)&& (buffered_pkt=dequeue_tx_data_pdu(priv, &interfacePriv->genericMulticastOrBroadCastFrames))) { - buffered_pkt->transmissionControl |= TRANSMISSION_CONTROL_TRIGGER_MASK; - moreData = (buffered_pkt->transmissionControl & TRANSMISSION_CONTROL_EOSP_MASK)?FALSE:TRUE; - - - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, NULL, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &interfacePriv->genericMulticastOrBroadCastFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - break; - } else { - if(r) { - unifi_trace(priv, UDBG1, "send_multicast_frames: Send genericMulticastOrBroadCastFrame failed (%x, %x)\n", - buffered_pkt->hostTag, - r); - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - if(!moreData) { - interfacePriv->dtimActive = FALSE; - if(!r) { - pduSent ++; - hostTag = buffered_pkt->hostTag; - } else { - send_vif_availibility_rsp(priv, uf_get_vif_identifier(interfacePriv->interfaceMode, interfaceTag), CSR_RC_UNSPECIFIED_FAILURE); - } - } - /* Buffered frame sent successfully */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - interfacePriv->noOfbroadcastPktQueued--; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - kfree(buffered_pkt); - } - } - } - if((interfacePriv->dtimActive == FALSE)) { - /* Record the host Tag*/ - unifi_trace(priv, UDBG2, "send_multicast_frames: Recorded hostTag of EOSP packet: = 0x%x\n", hostTag); - interfacePriv->multicastPduHostTag = hostTag; - } - return pduSent; -} -#endif -void uf_process_ma_vif_availibility_ind(unifi_priv_t *priv, u8 *sigdata, - u32 siglen) -{ -#ifdef CSR_SUPPORT_SME - CSR_SIGNAL signal; - CSR_MA_VIF_AVAILABILITY_INDICATION *ind; - int r; - u16 interfaceTag; - u8 pduSent =0; - CSR_RESULT_CODE resultCode = CSR_RC_SUCCESS; - netInterface_priv_t *interfacePriv; - - unifi_trace(priv, UDBG3, - "uf_process_ma_vif_availibility_ind: Process signal 0x%.4X\n", - *((u16*)sigdata)); - - r = read_unpack_signal(sigdata, &signal); - if (r) { - unifi_error(priv, - "uf_process_ma_vif_availibility_ind: Received unknown signal 0x%.4X.\n", - CSR_GET_UINT16_FROM_LITTLE_ENDIAN(sigdata)); - return; - } - ind = &signal.u.MaVifAvailabilityIndication; - interfaceTag=ind->VirtualInterfaceIdentifier & 0xff; - - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_error(priv, "in vif_availability_ind interfaceTag is wrong\n"); - return; - } - - interfacePriv = priv->interfacePriv[interfaceTag]; - - if(ind->Multicast) { - if(list_empty(&interfacePriv->genericMulticastOrBroadCastFrames) && - list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames)) { - /* This condition can occur because of a potential race where the - TIM is not yet reset as host is waiting for confirm but it is sent - by firmware and DTIM occurs*/ - unifi_notice(priv, "ma_vif_availibility_ind recevied for multicast but queues are empty%d\n", interfaceTag); - send_vif_availibility_rsp(priv, ind->VirtualInterfaceIdentifier, CSR_RC_NO_BUFFERED_BROADCAST_MULTICAST_FRAMES); - interfacePriv->dtimActive = FALSE; - if(interfacePriv->multicastPduHostTag == 0xffffffff) { - unifi_notice(priv, "ma_vif_availibility_ind recevied for multicast but queues are empty%d\n", interfaceTag); - /* This may be an extra request in very rare race conditions but it is fine as it would atleast remove the potential lock up */ - if (!interfacePriv->bcTimSetReqPendingFlag) - { - update_tim(priv, 0, CSR_WIFI_TIM_RESET, interfaceTag, 0xFFFFFFFF); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - interfacePriv->bcTimSetReqQueued = CSR_WIFI_TIM_RESET; - unifi_trace(priv, UDBG2, "uf_process_ma_vif_availibility_ind : One more UpdateDTim Request(%d) Queued \n", - interfacePriv->bcTimSetReqQueued); - } - } - return; - } - if(interfacePriv->dtimActive) { - unifi_trace(priv, UDBG2, "DTIM Occurred for already active DTIM interface %d\n", interfaceTag); - return; - } else { - unifi_trace(priv, UDBG2, "DTIM Occurred for interface %d\n", interfaceTag); - if(list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)) { - set_eosp_transmit_ctrl(priv, &interfacePriv->genericMulticastOrBroadCastMgtFrames); - } else { - set_eosp_transmit_ctrl(priv, &interfacePriv->genericMulticastOrBroadCastFrames); - } - } - interfacePriv->dtimActive = TRUE; - pduSent = send_multicast_frames(priv, interfaceTag); - } - else { - unifi_error(priv, "Interface switching is not supported %d\n", interfaceTag); - resultCode = CSR_RC_NOT_SUPPORTED; - send_vif_availibility_rsp(priv, ind->VirtualInterfaceIdentifier, CSR_RC_NOT_SUPPORTED); - } -#endif -} -#ifdef CSR_SUPPORT_SME - -#define GET_ACTIVE_INTERFACE_TAG(priv) 0 - -static u8 uf_is_more_data_for_delivery_ac(unifi_priv_t *priv, CsrWifiRouterCtrlStaInfo_t *staRecord) -{ - s8 i; - - for(i=UNIFI_TRAFFIC_Q_VO; i >= UNIFI_TRAFFIC_Q_BK; i--) - { - if(((staRecord->powersaveMode[i]==CSR_WIFI_AC_DELIVERY_ONLY_ENABLE) - ||(staRecord->powersaveMode[i]==CSR_WIFI_AC_TRIGGER_AND_DELIVERY_ENABLED)) - &&(!list_empty(&staRecord->dataPdu[i]))) { - unifi_trace(priv, UDBG2, "uf_is_more_data_for_delivery_ac: Data Available AC = %d\n", i); - return TRUE; - } - } - - unifi_trace(priv, UDBG2, "uf_is_more_data_for_delivery_ac: Data NOT Available \n"); - return FALSE; -} - -static u8 uf_is_more_data_for_usp_delivery(unifi_priv_t *priv, CsrWifiRouterCtrlStaInfo_t *staRecord, unifi_TrafficQueue queue) -{ - s8 i; - - for(i = queue; i >= UNIFI_TRAFFIC_Q_BK; i--) - { - if(((staRecord->powersaveMode[i]==CSR_WIFI_AC_DELIVERY_ONLY_ENABLE) - ||(staRecord->powersaveMode[i]==CSR_WIFI_AC_TRIGGER_AND_DELIVERY_ENABLED)) - &&(!list_empty(&staRecord->dataPdu[i]))) { - unifi_trace(priv, UDBG2, "uf_is_more_data_for_usp_delivery: Data Available AC = %d\n", i); - return TRUE; - } - } - - unifi_trace(priv, UDBG2, "uf_is_more_data_for_usp_delivery: Data NOT Available \n"); - return FALSE; -} - -/* - * --------------------------------------------------------------------------- - * uf_send_buffered_data_from_delivery_ac - * - * This function takes care of - * -> Parsing the delivery enabled queue & sending frame down to HIP - * -> Setting EOSP=1 when USP to be terminated - * -> Depending on MAX SP length services the USP - * - * NOTE:This function always called from uf_handle_uspframes_delivery(), Dont - * call this function from any other location in code - * - * Arguments: - * priv Pointer to device private context struct - * vif interface specific HIP vif instance - * staInfo peer for which UAPSD to be scheduled - * queue AC from which Data to be sent in USP - * txList access category for processing list - * --------------------------------------------------------------------------- - */ -void uf_send_buffered_data_from_delivery_ac(unifi_priv_t *priv, - CsrWifiRouterCtrlStaInfo_t * staInfo, - u8 queue, - struct list_head *txList) -{ - - u16 interfaceTag = GET_ACTIVE_INTERFACE_TAG(priv); - tx_buffered_packets_t * buffered_pkt = NULL; - unsigned long lock_flags; - u8 eosp=FALSE; - s8 r =0; - u8 moreData = FALSE; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - unifi_trace(priv, UDBG2, "++uf_send_buffered_data_from_delivery_ac, active=%x\n", staInfo->uapsdActive); - - if (queue > UNIFI_TRAFFIC_Q_VO) - { - return; - } - while((buffered_pkt=dequeue_tx_data_pdu(priv, txList))) { - if((IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag))) { - unifi_trace(priv, UDBG2, "uf_send_buffered_data_from_delivery_ac: DTIM Active, suspend UAPSD, staId: 0x%x\n", - staInfo->aid); - - /* Once resume called, the U-APSD delivery operation will resume */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->uspSuspend = TRUE; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - /* re-queueing the packet as DTIM started */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, txList); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - break; - } - - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - - - if((staInfo->wmmOrQosEnabled == TRUE)&&(staInfo->uapsdActive == TRUE)) { - - buffered_pkt->transmissionControl = TRANSMISSION_CONTROL_TRIGGER_MASK; - - /* Check All delivery enables Ac for more data, because caller of this - * function not aware about last packet - * (First check in moreData fetching helps in draining out Mgt frames Q) - */ - moreData = (!list_empty(txList) || uf_is_more_data_for_usp_delivery(priv, staInfo, queue)); - - if(staInfo->noOfSpFramesSent == (staInfo->maxSpLength - 1)) { - moreData = FALSE; - } - - if(moreData == FALSE) { - eosp = TRUE; - buffered_pkt->transmissionControl = - (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - } - } else { - /* Non QoS and non U-APSD */ - unifi_warning(priv, "uf_send_buffered_data_from_delivery_ac: non U-APSD !!! \n"); - } - - unifi_trace(priv, UDBG2, "uf_send_buffered_data_from_delivery_ac : MoreData:%d, EOSP:%d\n", moreData, eosp); - - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staInfo, moreData, eosp)) == -ENOSPC) { - - unifi_trace(priv, UDBG2, "uf_send_buffered_data_from_delivery_ac: UASPD suspended, ENOSPC in hipQ=%x\n", queue); - - /* Once resume called, the U-APSD delivery operation will resume */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->uspSuspend = TRUE; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, txList); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[queue]=(u8)(staInfo->assignedHandle); - break; - } else { - if(r){ - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->noOfSpFramesSent++; - if((!moreData) || (staInfo->noOfSpFramesSent == staInfo->maxSpLength)) { - unifi_trace(priv, UDBG2, "uf_send_buffered_data_from_delivery_ac: Terminating USP\n"); - staInfo->uapsdActive = FALSE; - staInfo->uspSuspend = FALSE; - staInfo->noOfSpFramesSent = 0; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - break; - } - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - } - unifi_trace(priv, UDBG2, "--uf_send_buffered_data_from_delivery_ac, active=%x\n", staInfo->uapsdActive); -} - -void uf_send_buffered_data_from_ac(unifi_priv_t *priv, - CsrWifiRouterCtrlStaInfo_t * staInfo, - u8 queue, - struct list_head *txList) -{ - tx_buffered_packets_t * buffered_pkt = NULL; - unsigned long lock_flags; - u8 eosp=FALSE; - u8 moreData = FALSE; - s8 r =0; - - unifi_trace(priv, UDBG2, "uf_send_buffered_data_from_ac :\n"); - - while(!isRouterBufferEnabled(priv, queue) && - ((buffered_pkt=dequeue_tx_data_pdu(priv, txList))!=NULL)){ - - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - - unifi_trace(priv, UDBG3, "uf_send_buffered_data_from_ac : MoreData:%d, EOSP:%d\n", moreData, eosp); - - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staInfo, moreData, eosp)) == -ENOSPC) { - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, txList); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - if(staInfo != NULL){ - priv->pausedStaHandle[queue]=(u8)(staInfo->assignedHandle); - } - unifi_trace(priv, UDBG3, " uf_send_buffered_data_from_ac: PDU sending failed .. no space for queue %d \n", queue); - } else { - if(r){ - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - -} - -void uf_send_buffered_frames(unifi_priv_t *priv, unifi_TrafficQueue q) -{ - u16 interfaceTag = GET_ACTIVE_INTERFACE_TAG(priv); - u32 startIndex=0, endIndex=0; - CsrWifiRouterCtrlStaInfo_t * staInfo = NULL; - u8 queue; - u8 moreData = FALSE; - - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - if(!((interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_AP) || - (interfacePriv->interfaceMode == CSR_WIFI_ROUTER_CTRL_MODE_P2PGO))) - return; - - queue = (q<=3)?q:0; - - if(interfacePriv->dtimActive) { - /* this function updates dtimActive*/ - send_multicast_frames(priv, interfaceTag); - if(!interfacePriv->dtimActive) { - moreData = (!list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames) || - !list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)); - if(!moreData) { - if (!interfacePriv->bcTimSetReqPendingFlag) - { - update_tim(priv, 0, CSR_WIFI_TIM_RESET, interfaceTag, 0XFFFFFFFF); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - interfacePriv->bcTimSetReqQueued = CSR_WIFI_TIM_RESET; - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : One more UpdateDTim Request(%d) Queued \n", - interfacePriv->bcTimSetReqQueued); - } - } - } else { - moreData = (!list_empty(&interfacePriv->genericMulticastOrBroadCastMgtFrames) || - !list_empty(&interfacePriv->genericMulticastOrBroadCastFrames)); - if(!moreData) { - /* This should never happen but if it happens, we need a way out */ - unifi_error(priv, "ERROR: No More Data but DTIM is active sending Response\n"); - send_vif_availibility_rsp(priv, uf_get_vif_identifier(interfacePriv->interfaceMode, interfaceTag), CSR_RC_NO_BUFFERED_BROADCAST_MULTICAST_FRAMES); - interfacePriv->dtimActive = FALSE; - } - } - return; - } - if(priv->pausedStaHandle[queue] > 7) { - priv->pausedStaHandle[queue] = 0; - } - - if(queue == UNIFI_TRAFFIC_Q_VO) { - - - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : trying mgt from queue=%d\n", queue); - for(startIndex= 0; startIndex < UNIFI_MAX_CONNECTIONS;startIndex++) { - staInfo = CsrWifiRouterCtrlGetStationRecordFromHandle(priv, startIndex, interfaceTag); - if(!staInfo ) { - continue; - } else if((staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE) - &&(staInfo->uapsdActive == FALSE) ) { - continue; - } - - if((staInfo != NULL)&&(staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE) - &&(staInfo->uapsdActive == FALSE)){ - /*Non-UAPSD case push the management frames out*/ - if(!list_empty(&staInfo->mgtFrames)){ - uf_send_buffered_data_from_ac(priv, staInfo, UNIFI_TRAFFIC_Q_VO, &staInfo->mgtFrames); - } - } - - if(isRouterBufferEnabled(priv, queue)) { - unifi_notice(priv, "uf_send_buffered_frames : No space Left for queue = %d\n", queue); - break; - } - } - /*push generic management frames out*/ - if(!list_empty(&interfacePriv->genericMgtFrames)) { - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : trying generic mgt from queue=%d\n", queue); - uf_send_buffered_data_from_ac(priv, staInfo, UNIFI_TRAFFIC_Q_VO, &interfacePriv->genericMgtFrames); - } - } - - - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : Resume called for Queue=%d\n", queue); - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : start=%d end=%d\n", startIndex, endIndex); - - startIndex = priv->pausedStaHandle[queue]; - endIndex = (startIndex + UNIFI_MAX_CONNECTIONS -1) % UNIFI_MAX_CONNECTIONS; - - while(startIndex != endIndex) { - staInfo = CsrWifiRouterCtrlGetStationRecordFromHandle(priv, startIndex, interfaceTag); - if(!staInfo) { - startIndex ++; - if(startIndex >= UNIFI_MAX_CONNECTIONS) { - startIndex = 0; - } - continue; - } else if((staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE) - &&(staInfo->uapsdActive == FALSE)) { - startIndex ++; - if(startIndex >= UNIFI_MAX_CONNECTIONS) { - startIndex = 0; - } - continue; - } - /* Peer is active or U-APSD is active so send PDUs to the peer */ - unifi_trace(priv, UDBG2, "uf_send_buffered_frames : trying data from queue=%d\n", queue); - - - if((staInfo != NULL)&&(staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE) - &&(staInfo->uapsdActive == FALSE)) { - if(!list_empty(&staInfo->dataPdu[queue])) { - - /*Non-UAPSD case push the AC frames out*/ - uf_send_buffered_data_from_ac(priv, staInfo, queue, (&staInfo->dataPdu[queue])); - } - } - startIndex ++; - if(startIndex >= UNIFI_MAX_CONNECTIONS) { - startIndex = 0; - } - } - if(isRouterBufferEnabled(priv, queue)) { - priv->pausedStaHandle[queue] = endIndex; - } else { - priv->pausedStaHandle[queue] = 0; - } - - /* U-APSD might have stopped because of ENOSPC in lib_hip (pause activity). - * So restart it if U-APSD was active with any of the station - */ - unifi_trace(priv, UDBG4, "csrWifiHipSendBufferedFrames: UAPSD Resume Q=%x\n", queue); - resume_suspended_uapsd(priv, interfaceTag); -} - - -u8 uf_is_more_data_for_non_delivery_ac(CsrWifiRouterCtrlStaInfo_t *staRecord) -{ - u8 i; - - for(i=0;i<=3;i++) - { - if(((staRecord->powersaveMode[i]==CSR_WIFI_AC_TRIGGER_ONLY_ENABLED) - ||(staRecord->powersaveMode[i]==CSR_WIFI_AC_LEGACY_POWER_SAVE)) - &&(!list_empty(&staRecord->dataPdu[i]))){ - - return TRUE; - } - } - - if(((staRecord->powersaveMode[UNIFI_TRAFFIC_Q_VO]==CSR_WIFI_AC_TRIGGER_ONLY_ENABLED) - ||(staRecord->powersaveMode[UNIFI_TRAFFIC_Q_VO]==CSR_WIFI_AC_LEGACY_POWER_SAVE)) - &&(!list_empty(&staRecord->mgtFrames))){ - - return TRUE; - } - - - - return FALSE; -} - - -int uf_process_station_records_for_sending_data(unifi_priv_t *priv, u16 interfaceTag, - CsrWifiRouterCtrlStaInfo_t *srcStaInfo, - CsrWifiRouterCtrlStaInfo_t *dstStaInfo) -{ - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - unifi_trace(priv, UDBG5, "entering uf_process_station_records_for_sending_data\n"); - - if (srcStaInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_DISCONNECTED) { - unifi_error(priv, "Peer State not connected AID = %x, handle = %x, control port state = %x\n", - srcStaInfo->aid, srcStaInfo->assignedHandle, srcStaInfo->peerControlledPort->port_action); - return -1; - } - switch (interfacePriv->interfaceMode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - unifi_trace(priv, UDBG5, "mode is AP/P2PGO\n"); - break; - default: - unifi_warning(priv, "mode is nor AP neither P2PGO, packet cant be xmit\n"); - return -1; - } - - switch(dstStaInfo->peerControlledPort->port_action) - { - case CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_CLOSED_DISCARD: - case CSR_WIFI_ROUTER_CTRL_PORT_ACTION_8021X_PORT_CLOSED_BLOCK: - unifi_trace(priv, UDBG5, "destination port is closed/blocked, discarding the packet\n"); - return -1; - default: - unifi_trace(priv, UDBG5, "destination port state is open\n"); - } - - /* port state is open, destination station record is valid, Power save state is - * validated in uf_process_ma_packet_req function - */ - unifi_trace(priv, UDBG5, "leaving uf_process_station_records_for_sending_data\n"); - return 0; -} - - -/* - * --------------------------------------------------------------------------- - * uf_handle_uspframes_delivery - * - * This function takes care of handling USP session for peer, when - * -> trigger frame from peer - * -> suspended USP to be processed (resumed) - * - * NOTE: uf_send_buffered_data_from_delivery_ac() always called from this function, Dont - * make a direct call to uf_send_buffered_data_from_delivery_ac() from any other part of - * code - * - * Arguments: - * priv Pointer to device private context struct - * staInfo peer for which UAPSD to be scheduled - * interfaceTag virtual interface tag - * --------------------------------------------------------------------------- - */ -static void uf_handle_uspframes_delivery(unifi_priv_t * priv, CsrWifiRouterCtrlStaInfo_t *staInfo, u16 interfaceTag) -{ - - s8 i; - u8 allDeliveryEnabled = 0, dataAvailable = 0; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - unsigned long lock_flags; - - unifi_trace(priv, UDBG2, " ++ uf_handle_uspframes_delivery, uapsd active=%x, suspended?=%x\n", - staInfo->uapsdActive, staInfo->uspSuspend); - - /* Check for Buffered frames according to priority order & deliver it - * 1. AC_VO delivery enable & Mgt frames available - * 2. Process remaining Ac's from order AC_VO to AC_BK - */ - - /* USP initiated by WMMPS enabled peer & SET the status flag to TRUE */ - if (!staInfo->uspSuspend && staInfo->uapsdActive) - { - unifi_notice(priv, "uf_handle_uspframes_delivery: U-APSD already active! STA=%x:%x:%x:%x:%x:%x\n", - staInfo->peerMacAddress.a[0], staInfo->peerMacAddress.a[1], - staInfo->peerMacAddress.a[2], staInfo->peerMacAddress.a[3], - staInfo->peerMacAddress.a[4], staInfo->peerMacAddress.a[5]); - return; - } - - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->uapsdActive = TRUE; - staInfo->uspSuspend = FALSE; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - if(((staInfo->powersaveMode[UNIFI_TRAFFIC_Q_VO]==CSR_WIFI_AC_TRIGGER_AND_DELIVERY_ENABLED)|| - (staInfo->powersaveMode[UNIFI_TRAFFIC_Q_VO]==CSR_WIFI_AC_DELIVERY_ONLY_ENABLE)) - && (!list_empty(&staInfo->mgtFrames))) { - - /* Management queue has data && UNIFI_TRAFFIC_Q_VO is delivery enable */ - unifi_trace(priv, UDBG4, "uf_handle_uspframes_delivery: Sending buffered management frames\n"); - uf_send_buffered_data_from_delivery_ac(priv, staInfo, UNIFI_TRAFFIC_Q_VO, &staInfo->mgtFrames); - } - - if (!uf_is_more_data_for_delivery_ac(priv, staInfo)) { - /* All delivery enable AC's are empty, so QNULL to be sent to terminate the USP - * NOTE: If we have sent Mgt frame also, we must send QNULL followed to terminate USP - */ - if (!staInfo->uspSuspend) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->uapsdActive = FALSE; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - unifi_trace(priv, UDBG2, "uf_handle_uspframes_delivery: sending QNull for trigger\n"); - uf_send_qos_null(priv, interfaceTag, staInfo->peerMacAddress.a, (CSR_PRIORITY) staInfo->triggerFramePriority, staInfo); - staInfo->triggerFramePriority = CSR_QOS_UP0; - } else { - unifi_trace(priv, UDBG2, "uf_handle_uspframes_delivery: MgtQ xfer suspended\n"); - } - } else { - for(i = UNIFI_TRAFFIC_Q_VO; i >= UNIFI_TRAFFIC_Q_BK; i--) { - if(((staInfo->powersaveMode[i]==CSR_WIFI_AC_DELIVERY_ONLY_ENABLE) - ||(staInfo->powersaveMode[i]==CSR_WIFI_AC_TRIGGER_AND_DELIVERY_ENABLED)) - && (!list_empty(&staInfo->dataPdu[i]))) { - /* Deliver Data according to AC priority (from VO to BK) as part of USP */ - unifi_trace(priv, UDBG4, "uf_handle_uspframes_delivery: Buffered data frames from Queue (%d) for USP\n", i); - uf_send_buffered_data_from_delivery_ac(priv, staInfo, i, &staInfo->dataPdu[i]); - } - - if ((!staInfo->uapsdActive) || - (staInfo->uspSuspend && IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag))) { - /* If DTIM active found on one AC, No need to parse the remaining AC's - * as USP suspended. Break out of loop - */ - unifi_trace(priv, UDBG2, "uf_handle_uspframes_delivery: suspend=%x, DTIM=%x, USP terminated=%s\n", - staInfo->uspSuspend, IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag), - staInfo->uapsdActive?"NO":"YES"); - break; - } - } - } - - /* Depending on the USP status, update the TIM accordingly for delivery enabled AC only - * (since we are not manipulating any Non-delivery list(AC)) - */ - is_all_ac_deliver_enabled_and_moredata(staInfo, &allDeliveryEnabled, &dataAvailable); - if ((allDeliveryEnabled && !dataAvailable)) { - if ((staInfo->timSet != CSR_WIFI_TIM_RESET) && (staInfo->timSet != CSR_WIFI_TIM_RESETTING)) { - staInfo->updateTimReqQueued = (u8) CSR_WIFI_TIM_RESET; - unifi_trace(priv, UDBG4, " --uf_handle_uspframes_delivery, UAPSD timset\n"); - if (!staInfo->timRequestPendingFlag) { - update_tim(priv, staInfo->aid, 0, interfaceTag, staInfo->assignedHandle); - } - } - } - unifi_trace(priv, UDBG2, " --uf_handle_uspframes_delivery, uapsd active=%x, suspend?=%x\n", - staInfo->uapsdActive, staInfo->uspSuspend); -} - -void uf_process_wmm_deliver_ac_uapsd(unifi_priv_t * priv, - CsrWifiRouterCtrlStaInfo_t * srcStaInfo, - u16 qosControl, - u16 interfaceTag) -{ - CSR_PRIORITY priority; - unifi_TrafficQueue priority_q; - unsigned long lock_flags; - - unifi_trace(priv, UDBG2, "++uf_process_wmm_deliver_ac_uapsd: uapsdactive?=%x\n", srcStaInfo->uapsdActive); - /* If recceived Frames trigger Frame and Devlivery enabled AC has data - * then transmit from High priorty delivery enabled AC - */ - priority = (CSR_PRIORITY)(qosControl & IEEE802_11_QC_TID_MASK); - priority_q = unifi_frame_priority_to_queue((CSR_PRIORITY) priority); - - if((srcStaInfo->powersaveMode[priority_q]==CSR_WIFI_AC_TRIGGER_ONLY_ENABLED) - ||(srcStaInfo->powersaveMode[priority_q]==CSR_WIFI_AC_TRIGGER_AND_DELIVERY_ENABLED)) { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - srcStaInfo->triggerFramePriority = priority; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - unifi_trace(priv, UDBG2, "uf_process_wmm_deliver_ac_uapsd: trigger frame, Begin U-APSD, triggerQ=%x\n", priority_q); - uf_handle_uspframes_delivery(priv, srcStaInfo, interfaceTag); - } - unifi_trace(priv, UDBG2, "--uf_process_wmm_deliver_ac_uapsd: uapsdactive?=%x\n", srcStaInfo->uapsdActive); -} - - -void uf_send_qos_null(unifi_priv_t * priv, u16 interfaceTag, const u8 *da, CSR_PRIORITY priority, CsrWifiRouterCtrlStaInfo_t * srcStaInfo) -{ - bulk_data_param_t bulkdata; - CsrResult csrResult; - struct sk_buff *skb, *newSkb = NULL; - CsrWifiMacAddress peerAddress; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - CSR_TRANSMISSION_CONTROL transmissionControl = (TRANSMISSION_CONTROL_EOSP_MASK | TRANSMISSION_CONTROL_TRIGGER_MASK); - int r; - CSR_SIGNAL signal; - u32 priority_q; - CSR_RATE transmitRate = 0; - - - /* Send a Null Frame to Peer, - * 32= size of mac header */ - csrResult = unifi_net_data_malloc(priv, &bulkdata.d[0], MAC_HEADER_SIZE + QOS_CONTROL_HEADER_SIZE); - - if (csrResult != CSR_RESULT_SUCCESS) { - unifi_error(priv, " failed to allocate request_data. in uf_send_qos_null func\n"); - return ; - } - skb = (struct sk_buff *)(bulkdata.d[0].os_net_buf_ptr); - skb->len = 0; - bulkdata.d[0].os_data_ptr = skb->data; - bulkdata.d[0].os_net_buf_ptr = (unsigned char*)skb; - bulkdata.d[0].net_buf_length = bulkdata.d[0].data_length = skb->len; - bulkdata.d[1].os_data_ptr = NULL; - bulkdata.d[1].os_net_buf_ptr = NULL; - bulkdata.d[1].net_buf_length = bulkdata.d[1].data_length = 0; - - /* For null frames protection bit should not be set in MAC header, so passing value 0 below for protection field */ - - if (prepare_and_add_macheader(priv, skb, newSkb, priority, &bulkdata, interfaceTag, da, interfacePriv->bssid.a, 0)) { - unifi_error(priv, "failed to create MAC header\n"); - unifi_net_data_free(priv, &bulkdata.d[0]); - return; - } - memcpy(peerAddress.a, ((u8 *) bulkdata.d[0].os_data_ptr) + 4, ETH_ALEN); - /* convert priority to queue */ - priority_q = unifi_frame_priority_to_queue((CSR_PRIORITY) priority); - - /* Frame ma-packet.req, this is saved/transmitted depend on queue state - * send the null frame at data rate of 1 Mb/s for AP or 6 Mb/s for P2PGO - */ - switch (interfacePriv->interfaceMode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - transmitRate = 2; - break; - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - transmitRate = 12; - break; - default: - transmitRate = 0; - } - unifi_frame_ma_packet_req(priv, priority, transmitRate, 0xffffffff, interfaceTag, - transmissionControl, priv->netdev_client->sender_id, - peerAddress.a, &signal); - - r = ul_send_signal_unpacked(priv, &signal, &bulkdata); - if(r) { - unifi_error(priv, "failed to send QOS data null packet result: %d\n", r); - unifi_net_data_free(priv, &bulkdata.d[0]); - } - - return; - -} -void uf_send_nulldata(unifi_priv_t * priv, u16 interfaceTag, const u8 *da, CSR_PRIORITY priority, CsrWifiRouterCtrlStaInfo_t * srcStaInfo) -{ - bulk_data_param_t bulkdata; - CsrResult csrResult; - struct sk_buff *skb, *newSkb = NULL; - CsrWifiMacAddress peerAddress; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - CSR_TRANSMISSION_CONTROL transmissionControl = 0; - int r; - CSR_SIGNAL signal; - u32 priority_q; - CSR_RATE transmitRate = 0; - CSR_MA_PACKET_REQUEST *req = &signal.u.MaPacketRequest; - unsigned long lock_flags; - - /* Send a Null Frame to Peer, size = 24 for MAC header */ - csrResult = unifi_net_data_malloc(priv, &bulkdata.d[0], MAC_HEADER_SIZE); - - if (csrResult != CSR_RESULT_SUCCESS) { - unifi_error(priv, "uf_send_nulldata: Failed to allocate memory for NULL frame\n"); - return ; - } - skb = (struct sk_buff *)(bulkdata.d[0].os_net_buf_ptr); - skb->len = 0; - bulkdata.d[0].os_data_ptr = skb->data; - bulkdata.d[0].os_net_buf_ptr = (unsigned char*)skb; - bulkdata.d[0].net_buf_length = bulkdata.d[0].data_length = skb->len; - bulkdata.d[1].os_data_ptr = NULL; - bulkdata.d[1].os_net_buf_ptr = NULL; - bulkdata.d[1].net_buf_length = bulkdata.d[1].data_length = 0; - - /* For null frames protection bit should not be set in MAC header, so passing value 0 below for protection field */ - if (prepare_and_add_macheader(priv, skb, newSkb, priority, &bulkdata, interfaceTag, da, interfacePriv->bssid.a, 0)) { - unifi_error(priv, "uf_send_nulldata: Failed to create MAC header\n"); - unifi_net_data_free(priv, &bulkdata.d[0]); - return; - } - memcpy(peerAddress.a, ((u8 *) bulkdata.d[0].os_data_ptr) + 4, ETH_ALEN); - /* convert priority to queue */ - priority_q = unifi_frame_priority_to_queue((CSR_PRIORITY) priority); - transmissionControl &= ~(CSR_NO_CONFIRM_REQUIRED); - - /* Frame ma-packet.req, this is saved/transmitted depend on queue state - * send the null frame at data rate of 1 Mb/s for AP or 6 Mb/s for P2PGO - */ - switch (interfacePriv->interfaceMode) - { - case CSR_WIFI_ROUTER_CTRL_MODE_AP: - transmitRate = 2; - break; - case CSR_WIFI_ROUTER_CTRL_MODE_P2PGO: - transmitRate = 12; - break; - default: - transmitRate = 0; - } - unifi_frame_ma_packet_req(priv, priority, transmitRate, INVALID_HOST_TAG, interfaceTag, - transmissionControl, priv->netdev_client->sender_id, - peerAddress.a, &signal); - - /* Save host tag to check the status on reception of MA packet confirm */ - srcStaInfo->nullDataHostTag = req->HostTag; - unifi_trace(priv, UDBG1, "uf_send_nulldata: STA AID = %d hostTag = %x\n", srcStaInfo->aid, req->HostTag); - - r = ul_send_signal_unpacked(priv, &signal, &bulkdata); - - if(r == -ENOSPC) { - unifi_trace(priv, UDBG1, "uf_send_nulldata: ENOSPC Requeue the Null frame\n"); - enque_tx_data_pdu(priv, &bulkdata, &srcStaInfo->dataPdu[priority_q], &signal, 1); - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - srcStaInfo->noOfPktQueued++; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - - } - if(r && r != -ENOSPC){ - unifi_error(priv, "uf_send_nulldata: Failed to send Null frame Error = %d\n", r); - unifi_net_data_free(priv, &bulkdata.d[0]); - srcStaInfo->nullDataHostTag = INVALID_HOST_TAG; - } - - return; -} - -u8 uf_check_broadcast_bssid(unifi_priv_t *priv, const bulk_data_param_t *bulkdata) -{ - u8 *bssid = NULL; - static const CsrWifiMacAddress broadcast_address = {{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}}; - u8 toDs, fromDs; - - toDs = (((bulkdata->d[0].os_data_ptr)[1]) & 0x01) ? 1 : 0; - fromDs =(((bulkdata->d[0].os_data_ptr)[1]) & 0x02) ? 1 : 0; - - if (toDs && fromDs) - { - unifi_trace(priv, UDBG6, "Address 4 present, Don't try to find BSSID\n"); - bssid = NULL; - } - else if((toDs == 0) && (fromDs ==0)) - { - /* BSSID is Address 3 */ - bssid = (u8 *) (bulkdata->d[0].os_data_ptr + 4 + (2 * ETH_ALEN)); - } - else if(toDs) - { - /* BSSID is Address 1 */ - bssid = (u8 *) (bulkdata->d[0].os_data_ptr + 4); - } - else if(fromDs) - { - /* BSSID is Address 2 */ - bssid = (u8 *) (bulkdata->d[0].os_data_ptr + 4 + ETH_ALEN); - } - - if (memcmp(broadcast_address.a, bssid, ETH_ALEN)== 0) - { - return TRUE; - } - else - { - return FALSE; - } -} - - -u8 uf_process_pm_bit_for_peer(unifi_priv_t * priv, CsrWifiRouterCtrlStaInfo_t * srcStaInfo, - u8 pmBit, u16 interfaceTag) -{ - u8 moreData = FALSE; - u8 powerSaveChanged = FALSE; - unsigned long lock_flags; - - unifi_trace(priv, UDBG3, "entering uf_process_pm_bit_for_peer\n"); - if (pmBit) { - priv->allPeerDozing |= (0x01 << (srcStaInfo->assignedHandle)); - } else { - priv->allPeerDozing &= ~(0x01 << (srcStaInfo->assignedHandle)); - } - if(pmBit) { - if(srcStaInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE) { - - /* disable the preemption */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - srcStaInfo->currentPeerState =CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE; - powerSaveChanged = TRUE; - /* enable the preemption */ - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } else { - return powerSaveChanged; - } - } else { - if(srcStaInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE) { - /* disable the preemption */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - srcStaInfo->currentPeerState = CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE; - powerSaveChanged = TRUE; - /* enable the preemption */ - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - }else { - return powerSaveChanged; - } - } - - - if(srcStaInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE) { - unifi_trace(priv, UDBG3, "Peer with AID = %d is active now\n", srcStaInfo->aid); - process_peer_active_transition(priv, srcStaInfo, interfaceTag); - } else { - unifi_trace(priv, UDBG3, "Peer with AID = %d is in PS Now\n", srcStaInfo->aid); - /* Set TIM if needed */ - if(!srcStaInfo->wmmOrQosEnabled) { - moreData = (!list_empty(&srcStaInfo->mgtFrames) || - !list_empty(&srcStaInfo->dataPdu[UNIFI_TRAFFIC_Q_VO])|| - !list_empty(&srcStaInfo->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION])); - if(moreData && (srcStaInfo->timSet == CSR_WIFI_TIM_RESET)) { - unifi_trace(priv, UDBG3, "This condition should not occur\n"); - if (!srcStaInfo->timRequestPendingFlag){ - update_tim(priv, srcStaInfo->aid, 1, interfaceTag, srcStaInfo->assignedHandle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - srcStaInfo->updateTimReqQueued = 1; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", srcStaInfo->updateTimReqQueued, - srcStaInfo->aid); - } - - } - } else { - u8 allDeliveryEnabled = 0, dataAvailable = 0; - unifi_trace(priv, UDBG5, "Qos in AP Mode\n"); - /* Check if all AC's are Delivery Enabled */ - is_all_ac_deliver_enabled_and_moredata(srcStaInfo, &allDeliveryEnabled, &dataAvailable); - /*check for more data in non-delivery enabled queues*/ - moreData = (uf_is_more_data_for_non_delivery_ac(srcStaInfo) || (allDeliveryEnabled && dataAvailable)); - - if(moreData && (srcStaInfo->timSet == CSR_WIFI_TIM_RESET)) { - if (!srcStaInfo->timRequestPendingFlag){ - update_tim(priv, srcStaInfo->aid, 1, interfaceTag, srcStaInfo->assignedHandle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - srcStaInfo->updateTimReqQueued = 1; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", srcStaInfo->updateTimReqQueued, - srcStaInfo->aid); - } - } - } - } - unifi_trace(priv, UDBG3, "leaving uf_process_pm_bit_for_peer\n"); - return powerSaveChanged; -} - - - -void uf_process_ps_poll(unifi_priv_t *priv, u8* sa, u8* da, u8 pmBit, u16 interfaceTag) -{ - CsrWifiRouterCtrlStaInfo_t *staRecord = - CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, sa, interfaceTag); - tx_buffered_packets_t * buffered_pkt = NULL; - CsrWifiMacAddress peerMacAddress; - unsigned long lock_flags; - s8 r =0; - u8 moreData = FALSE; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - - unifi_trace(priv, UDBG3, "entering uf_process_ps_poll\n"); - if(!staRecord) { - memcpy(peerMacAddress.a, sa, ETH_ALEN); - unifi_trace(priv, UDBG3, "In uf_process_ps_poll, sta record not found:unexpected frame addr = %x:%x:%x:%x:%x:%x\n", - sa[0], sa[1], sa[2], sa[3], sa[4], sa[5]); - CsrWifiRouterCtrlUnexpectedFrameIndSend(priv->CSR_WIFI_SME_IFACEQUEUE, 0, interfaceTag, peerMacAddress); - return; - } - - uf_process_pm_bit_for_peer(priv, staRecord, pmBit, interfaceTag); - - /* Update station last activity time */ - staRecord->activity_flag = TRUE; - - /* This should not change the PM bit as PS-POLL has PM bit always set */ - if(!pmBit) { - unifi_notice (priv, " PM bit reset in PS-POLL\n"); - return; - } - - if(IS_DTIM_ACTIVE(interfacePriv->dtimActive, interfacePriv->multicastPduHostTag)) { - /* giving more priority to multicast packets so dropping ps-poll*/ - unifi_notice (priv, " multicast transmission is going on so don't take action on PS-POLL\n"); - return; - } - - if(!staRecord->wmmOrQosEnabled) { - if((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->mgtFrames))) { - buffered_pkt->transmissionControl |= TRANSMISSION_CONTROL_TRIGGER_MASK; - moreData = (!list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]) || - !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO]) || - !list_empty(&staRecord->mgtFrames)); - - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->mgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - unifi_trace(priv, UDBG1, "(ENOSPC) PS-POLL received : PDU sending failed \n"); - priv->pausedStaHandle[3]=(u8)(staRecord->assignedHandle); - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } else if((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO]))) { - buffered_pkt->transmissionControl |= TRANSMISSION_CONTROL_TRIGGER_MASK; - moreData = (!list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]) || - !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO])); - - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO]); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[3]=(u8)(staRecord->assignedHandle); - unifi_trace(priv, UDBG1, "(ENOSPC) PS-POLL received : PDU sending failed \n"); - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } else if((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]))) { - buffered_pkt->transmissionControl |= TRANSMISSION_CONTROL_TRIGGER_MASK; - moreData = !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]); - - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[0]=(u8)(staRecord->assignedHandle); - unifi_trace(priv, UDBG1, "(ENOSPC) PS-POLL received : PDU sending failed \n"); - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } else { - /* Actually since we have sent an ACK, there - * there is no need to send a NULL frame*/ - } - moreData = (!list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_VO]) || - !list_empty(&staRecord->dataPdu[UNIFI_TRAFFIC_Q_CONTENTION]) || - !list_empty(&staRecord->mgtFrames)); - if(!moreData && (staRecord->timSet == CSR_WIFI_TIM_SET)) { - unifi_trace(priv, UDBG3, "more data = NULL, set tim to 0 in uf_process_ps_poll\n"); - if (!staRecord->timRequestPendingFlag){ - update_tim(priv, staRecord->aid, 0, interfaceTag, staRecord->assignedHandle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 0; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - } - } else { - - u8 allDeliveryEnabled = 0, dataAvailable = 0; - unifi_trace(priv, UDBG3, "Qos Support station.Processing PS-Poll\n"); - - /*Send Data From Management Frames*/ - /* Priority orders for delivering the buffered packets are - * 1. Deliver the Management frames if there - * 2. Other access category frames which are non deliver enable including UNIFI_TRAFFIC_Q_VO - * priority is from VO->BK - */ - - /* Check if all AC's are Delivery Enabled */ - is_all_ac_deliver_enabled_and_moredata(staRecord, &allDeliveryEnabled, &dataAvailable); - - if (allDeliveryEnabled) { - unifi_trace(priv, UDBG3, "uf_process_ps_poll: All ACs are delivery enable so Sending QOS Null in response of Ps-poll\n"); - uf_send_qos_null(priv, interfaceTag, sa, CSR_QOS_UP0, staRecord); - return; - } - - if (!list_empty(&staRecord->mgtFrames)) { - if ((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->mgtFrames))) { - /* We dont have packets in non delivery enabled UNIFI_TRAFFIC_Q_VO, So we are looking in management - * queue of the station record - */ - moreData = uf_is_more_data_for_non_delivery_ac(staRecord); - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - - /* Last parameter is EOSP & its false always for PS-POLL processing */ - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->mgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[0]=(u8)(staRecord->assignedHandle); - unifi_trace(priv, UDBG1, "(ENOSPC) PS-POLL received : PDU sending failed \n"); - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } else { - unifi_error(priv, "uf_process_ps_poll: Mgt frame list empty!! \n"); - } - - } else { - s8 i; - /* We dont have buffered packet in mangement frame queue (1 failed), So proceed with condition 2 - * UNIFI_TRAFFIC_Q_VO -> VI -> BE -> BK - */ - for(i= 3; i>=0; i--) { - if (!IS_DELIVERY_ENABLED(staRecord->powersaveMode[i])) { - /* Send One packet, if queue is NULL then continue */ - if((buffered_pkt=dequeue_tx_data_pdu(priv, &staRecord->dataPdu[i]))) { - moreData = uf_is_more_data_for_non_delivery_ac(staRecord); - - buffered_pkt->transmissionControl |= (TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - - /* Last parameter is EOSP & its false always for PS-POLL processing */ - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staRecord, moreData, FALSE)) == -ENOSPC) { - /* Clear the trigger bit transmission control*/ - buffered_pkt->transmissionControl &= ~(TRANSMISSION_CONTROL_TRIGGER_MASK | TRANSMISSION_CONTROL_EOSP_MASK); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staRecord->dataPdu[i]); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[0]=(u8)(staRecord->assignedHandle); - unifi_trace(priv, UDBG1, "(ENOSPC) PS-POLL received : PDU sending failed \n"); - } else { - if(r) { - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - break; - } - } - } - } - /* Check if all AC's are Delivery Enabled */ - is_all_ac_deliver_enabled_and_moredata(staRecord, &allDeliveryEnabled, &dataAvailable); - /*check for more data in non-delivery enabled queues*/ - moreData = (uf_is_more_data_for_non_delivery_ac(staRecord) || (allDeliveryEnabled && dataAvailable)); - if(!moreData && (staRecord->timSet == CSR_WIFI_TIM_SET)) { - unifi_trace(priv, UDBG3, "more data = NULL, set tim to 0 in uf_process_ps_poll\n"); - if (!staRecord->timRequestPendingFlag){ - update_tim(priv, staRecord->aid, 0, interfaceTag, staRecord->assignedHandle); - } - else - { - /* Cache the TimSet value so that it will processed immidiatly after - * completing the current setTim Request - */ - staRecord->updateTimReqQueued = 0; - unifi_trace(priv, UDBG6, "update_tim : One more UpdateTim Request (Tim value:%d) Queued for AID %x\n", staRecord->updateTimReqQueued, - staRecord->aid); - } - - } - } - - unifi_trace(priv, UDBG3, "leaving uf_process_ps_poll\n"); -} - - - -void add_to_send_cfm_list(unifi_priv_t * priv, - tx_buffered_packets_t *tx_q_item, - struct list_head *frames_need_cfm_list) -{ - tx_buffered_packets_t *send_cfm_list_item = NULL; - - send_cfm_list_item = kmalloc(sizeof(tx_buffered_packets_t), GFP_ATOMIC); - - if(send_cfm_list_item == NULL){ - unifi_warning(priv, "%s: Failed to allocate memory for new list item \n"); - return; - } - - INIT_LIST_HEAD(&send_cfm_list_item->q); - - send_cfm_list_item->hostTag = tx_q_item->hostTag; - send_cfm_list_item->interfaceTag = tx_q_item->interfaceTag; - send_cfm_list_item->transmissionControl = tx_q_item->transmissionControl; - send_cfm_list_item->leSenderProcessId = tx_q_item->leSenderProcessId; - send_cfm_list_item->rate = tx_q_item->rate; - memcpy(send_cfm_list_item->peerMacAddress.a, tx_q_item->peerMacAddress.a, ETH_ALEN); - send_cfm_list_item->priority = tx_q_item->priority; - - list_add_tail(&send_cfm_list_item->q, frames_need_cfm_list); -} - -void uf_prepare_send_cfm_list_for_queued_pkts(unifi_priv_t * priv, - struct list_head *frames_need_cfm_list, - struct list_head * list) -{ - tx_buffered_packets_t *tx_q_item = NULL; - struct list_head *listHead; - struct list_head *placeHolder; - unsigned long lock_flags; - - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - - /* Search through the list and if confirmation required for any frames, - add it to the send_cfm list */ - list_for_each_safe(listHead, placeHolder, list) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - - if(!tx_q_item) { - unifi_error(priv, "Entry should exist, otherwise it is a (BUG)\n"); - continue; - } - - /* check if confirmation is requested and if the sender ID - is not netdevice client then save the entry in the list for need cfms */ - if (!(tx_q_item->transmissionControl & CSR_NO_CONFIRM_REQUIRED) && - (tx_q_item->leSenderProcessId != priv->netdev_client->sender_id)){ - unifi_trace(priv, UDBG1, "%s: SenderProcessID=%x host tag=%x transmission control=%x\n", - __FUNCTION__, - tx_q_item->leSenderProcessId, - tx_q_item->hostTag, - tx_q_item->transmissionControl); - - add_to_send_cfm_list(priv, tx_q_item, frames_need_cfm_list); - } - } - - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - -} - - - -void uf_flush_list(unifi_priv_t * priv, struct list_head * list) -{ - tx_buffered_packets_t *tx_q_item; - struct list_head *listHead; - struct list_head *placeHolder; - unsigned long lock_flags; - - unifi_trace(priv, UDBG5, "entering the uf_flush_list \n"); - - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - /* go through list, delete & free memory */ - list_for_each_safe(listHead, placeHolder, list) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - - if(!tx_q_item) { - unifi_error(priv, "entry should exists, otherwise crashes (bug)\n"); - } - unifi_trace(priv, UDBG5, - "proccess_tx: in uf_flush_list peerMacAddress=%02X%02X%02X%02X%02X%02X senderProcessId=%x\n", - tx_q_item->peerMacAddress.a[0], tx_q_item->peerMacAddress.a[1], - tx_q_item->peerMacAddress.a[2], tx_q_item->peerMacAddress.a[3], - tx_q_item->peerMacAddress.a[4], tx_q_item->peerMacAddress.a[5], - tx_q_item->leSenderProcessId); - - list_del(listHead); - /* free the allocated memory */ - unifi_net_data_free(priv, &tx_q_item->bulkdata); - kfree(tx_q_item); - tx_q_item = NULL; - if (!priv->noOfPktQueuedInDriver) { - unifi_error(priv, "packets queued in driver 0 still decrementing in %s\n", __FUNCTION__); - } else { - priv->noOfPktQueuedInDriver--; - } - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); -} - -tx_buffered_packets_t *dequeue_tx_data_pdu(unifi_priv_t *priv, struct list_head *txList) -{ - /* dequeue the tx data packets from the appropriate queue */ - tx_buffered_packets_t *tx_q_item = NULL; - struct list_head *listHead; - struct list_head *placeHolder; - unsigned long lock_flags; - - unifi_trace(priv, UDBG5, "entering dequeue_tx_data_pdu\n"); - /* check for list empty */ - if (list_empty(txList)) { - unifi_trace(priv, UDBG5, "In dequeue_tx_data_pdu, the list is empty\n"); - return NULL; - } - - /* Verification, if packet count is negetive */ - if (priv->noOfPktQueuedInDriver == 0xFFFF) { - unifi_warning(priv, "no packet available in queue: debug"); - return NULL; - } - - /* return first node after header, & delete from the list && atleast one item exist */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_for_each_safe(listHead, placeHolder, txList) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - list_del(listHead); - break; - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - - if (tx_q_item) { - unifi_trace(priv, UDBG5, - "proccess_tx: In dequeue_tx_data_pdu peerMacAddress=%02X%02X%02X%02X%02X%02X senderProcessId=%x\n", - tx_q_item->peerMacAddress.a[0], tx_q_item->peerMacAddress.a[1], - tx_q_item->peerMacAddress.a[2], tx_q_item->peerMacAddress.a[3], - tx_q_item->peerMacAddress.a[4], tx_q_item->peerMacAddress.a[5], - tx_q_item->leSenderProcessId); - } - - unifi_trace(priv, UDBG5, "leaving dequeue_tx_data_pdu\n"); - return tx_q_item; -} -/* generic function to get the station record handler */ -CsrWifiRouterCtrlStaInfo_t *CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(unifi_priv_t *priv, - const u8 *peerMacAddress, - u16 interfaceTag) -{ - u8 i; - netInterface_priv_t *interfacePriv; - unsigned long lock_flags; - - if (interfaceTag >= CSR_WIFI_NUM_INTERFACES) { - unifi_error(priv, "interfaceTag is not proper, interfaceTag = %d\n", interfaceTag); - return NULL; - } - - interfacePriv = priv->interfacePriv[interfaceTag]; - - /* disable the preemption until station record is fetched */ - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - - for (i = 0; i < UNIFI_MAX_CONNECTIONS; i++) { - if (interfacePriv->staInfo[i]!= NULL) { - if (!memcmp(((CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[i]))->peerMacAddress.a, peerMacAddress, ETH_ALEN)) { - /* enable the preemption as station record is fetched */ - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - unifi_trace(priv, UDBG5, "peer entry found in station record\n"); - return ((CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[i])); - } - } - } - /* enable the preemption as station record is fetched */ - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - unifi_trace(priv, UDBG5, "peer entry not found in station record\n"); - return NULL; -} -/* generic function to get the station record handler from the handle */ -CsrWifiRouterCtrlStaInfo_t * CsrWifiRouterCtrlGetStationRecordFromHandle(unifi_priv_t *priv, - u32 handle, - u16 interfaceTag) -{ - netInterface_priv_t *interfacePriv; - - if ((handle >= UNIFI_MAX_CONNECTIONS) || (interfaceTag >= CSR_WIFI_NUM_INTERFACES)) { - unifi_error(priv, "handle/interfaceTag is not proper, handle = %d, interfaceTag = %d\n", handle, interfaceTag); - return NULL; - } - interfacePriv = priv->interfacePriv[interfaceTag]; - return ((CsrWifiRouterCtrlStaInfo_t *) (interfacePriv->staInfo[handle])); -} - -/* Function to do inactivity */ -void uf_check_inactivity(unifi_priv_t *priv, u16 interfaceTag, u32 currentTime) -{ - u32 i; - CsrWifiRouterCtrlStaInfo_t *staInfo; - u32 elapsedTime; /* Time in microseconds */ - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - CsrWifiMacAddress peerMacAddress; - unsigned long lock_flags; - - if (interfacePriv == NULL) { - unifi_trace(priv, UDBG3, "uf_check_inactivity: Interface priv is NULL \n"); - return; - } - - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - /* Go through the list of stations to check for inactivity */ - for(i = 0; i < UNIFI_MAX_CONNECTIONS; i++) { - staInfo = CsrWifiRouterCtrlGetStationRecordFromHandle(priv, i, interfaceTag); - if(!staInfo ) { - continue; - } - - unifi_trace(priv, UDBG3, "Running Inactivity handler Time %xus station's last activity %xus\n", - currentTime, staInfo->lastActivity); - - - elapsedTime = (currentTime >= staInfo->lastActivity)? - (currentTime - staInfo->lastActivity): - (~((u32)0) - staInfo->lastActivity + currentTime); - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - if (elapsedTime > MAX_INACTIVITY_INTERVAL) { - memcpy((u8*)&peerMacAddress, (u8*)&staInfo->peerMacAddress, sizeof(CsrWifiMacAddress)); - - /* Indicate inactivity for the station */ - unifi_trace(priv, UDBG3, "Station %x:%x:%x:%x:%x:%x inactive since %xus\n sending Inactive Ind\n", - peerMacAddress.a[0], peerMacAddress.a[1], - peerMacAddress.a[2], peerMacAddress.a[3], - peerMacAddress.a[4], peerMacAddress.a[5], - elapsedTime); - - CsrWifiRouterCtrlStaInactiveIndSend(priv->CSR_WIFI_SME_IFACEQUEUE, 0, interfaceTag, peerMacAddress); - } - } - - interfacePriv->last_inactivity_check = currentTime; -} - -/* Function to update activity of a station */ -void uf_update_sta_activity(unifi_priv_t *priv, u16 interfaceTag, const u8 *peerMacAddress) -{ - u32 elapsedTime, currentTime; /* Time in microseconds */ - u32 timeHi; /* Not used - Time in microseconds */ - CsrWifiRouterCtrlStaInfo_t *staInfo; - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - unsigned long lock_flags; - - if (interfacePriv == NULL) { - unifi_trace(priv, UDBG3, "uf_check_inactivity: Interface priv is NULL \n"); - return; - } - - currentTime = CsrTimeGet(&timeHi); - - - staInfo = CsrWifiRouterCtrlGetStationRecordFromPeerMacAddress(priv, peerMacAddress, interfaceTag); - - if (staInfo == NULL) { - unifi_trace(priv, UDBG4, "Sta does not exist yet"); - return; - } - - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - /* Update activity */ - staInfo->lastActivity = currentTime; - - /* See if inactivity handler needs to be run - * Here it is theoretically possible that the counter may have wrapped around. But - * since we just want to know when to run the inactivity handler it does not really matter. - * Especially since this is data path it makes sense in keeping it simple and avoiding - * 64 bit handling */ - elapsedTime = (currentTime >= interfacePriv->last_inactivity_check)? - (currentTime - interfacePriv->last_inactivity_check): - (~((u32)0) - interfacePriv->last_inactivity_check + currentTime); - - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - - /* Check if it is time to run the inactivity handler */ - if (elapsedTime > INACTIVITY_CHECK_INTERVAL) { - uf_check_inactivity(priv, interfaceTag, currentTime); - } -} -void resume_unicast_buffered_frames(unifi_priv_t *priv, u16 interfaceTag) -{ - - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - u8 i; - int j; - tx_buffered_packets_t * buffered_pkt = NULL; - u8 hipslotFree[4] = {TRUE, TRUE, TRUE, TRUE}; - int r; - unsigned long lock_flags; - - while(!isRouterBufferEnabled(priv, 3) && - ((buffered_pkt=dequeue_tx_data_pdu(priv, &interfacePriv->genericMgtFrames))!=NULL)) { - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, NULL, 0, FALSE)) == -ENOSPC) { - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &interfacePriv->genericMgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - hipslotFree[3]=FALSE; - break; - }else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - for(i = 0; i < UNIFI_MAX_CONNECTIONS; i++) { - CsrWifiRouterCtrlStaInfo_t *staInfo = interfacePriv->staInfo[i]; - if(!hipslotFree[0] && !hipslotFree[1] && !hipslotFree[2] && !hipslotFree[3]) { - unifi_trace(priv, UDBG3, "(ENOSPC) in resume_unicast_buffered_frames:: hip slots are full \n"); - break; - } - if (staInfo && (staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE)) { - while((( TRUE == hipslotFree[3] ) && (buffered_pkt=dequeue_tx_data_pdu(priv, &staInfo->mgtFrames)))) { - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staInfo, 0, FALSE)) == -ENOSPC) { - unifi_trace(priv, UDBG3, "(ENOSPC) in resume_unicast_buffered_frames:: hip slots are full for voice queue\n"); - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staInfo->mgtFrames); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[3]=(u8)(staInfo->assignedHandle); - hipslotFree[3] = FALSE; - break; - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - - for(j=3;j>=0;j--) { - if(!hipslotFree[j]) - continue; - - while((buffered_pkt=dequeue_tx_data_pdu(priv, &staInfo->dataPdu[j]))) { - buffered_pkt->transmissionControl &= - ~(TRANSMISSION_CONTROL_TRIGGER_MASK|TRANSMISSION_CONTROL_EOSP_MASK); - if((r=frame_and_send_queued_pdu(priv, buffered_pkt, staInfo, 0, FALSE)) == -ENOSPC) { - /* Enqueue at the head of the queue */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_add(&buffered_pkt->q, &staInfo->dataPdu[j]); - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - priv->pausedStaHandle[j]=(u8)(staInfo->assignedHandle); - hipslotFree[j]=FALSE; - break; - } else { - if(r){ - unifi_trace (priv, UDBG1, " HIP validation failure : PDU sending failed \n"); - /* the PDU failed where we can't do any thing so free the storage */ - unifi_net_data_free(priv, &buffered_pkt->bulkdata); - } - kfree(buffered_pkt); - } - } - } - } - } -} -void update_eosp_to_head_of_broadcast_list_head(unifi_priv_t *priv, u16 interfaceTag) -{ - - netInterface_priv_t *interfacePriv = priv->interfacePriv[interfaceTag]; - unsigned long lock_flags; - struct list_head *listHead; - struct list_head *placeHolder; - tx_buffered_packets_t *tx_q_item; - - if (interfacePriv->noOfbroadcastPktQueued) { - - /* Update the EOSP to the HEAD of b/c list - * because we have received any mgmt packet so it should not hold for long time - * peer may time out. - */ - spin_lock_irqsave(&priv->tx_q_lock, lock_flags); - list_for_each_safe(listHead, placeHolder, &interfacePriv->genericMulticastOrBroadCastFrames) { - tx_q_item = list_entry(listHead, tx_buffered_packets_t, q); - tx_q_item->transmissionControl |= TRANSMISSION_CONTROL_EOSP_MASK; - tx_q_item->transmissionControl = (tx_q_item->transmissionControl & ~(CSR_NO_CONFIRM_REQUIRED)); - unifi_trace(priv, UDBG1, "updating eosp for list Head hostTag:= 0x%x ", tx_q_item->hostTag); - break; - } - spin_unlock_irqrestore(&priv->tx_q_lock, lock_flags); - } -} - -/* - * --------------------------------------------------------------------------- - * resume_suspended_uapsd - * - * This function takes care processing packets of Unscheduled Service Period, - * which been suspended earlier due to DTIM/HIP ENOSPC scenarios - * - * Arguments: - * priv Pointer to device private context struct - * interfaceTag For which resume should happen - * --------------------------------------------------------------------------- - */ -void resume_suspended_uapsd(unifi_priv_t* priv, u16 interfaceTag) -{ - - u8 startIndex; - CsrWifiRouterCtrlStaInfo_t * staInfo = NULL; - unsigned long lock_flags; - - unifi_trace(priv, UDBG2, "++resume_suspended_uapsd: \n"); - for(startIndex= 0; startIndex < UNIFI_MAX_CONNECTIONS;startIndex++) { - staInfo = CsrWifiRouterCtrlGetStationRecordFromHandle(priv, startIndex, interfaceTag); - - if(!staInfo || !staInfo->wmmOrQosEnabled) { - continue; - } else if((staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_POWER_SAVE) - &&staInfo->uapsdActive && staInfo->uspSuspend) { - /* U-APSD Still active & previously suspended either ENOSPC of FH queues OR - * due to DTIM activity - */ - uf_handle_uspframes_delivery(priv, staInfo, interfaceTag); - } else { - unifi_trace(priv, UDBG2, "resume_suspended_uapsd: PS state=%x, uapsdActive?=%x, suspend?=%x\n", - staInfo->currentPeerState, staInfo->uapsdActive, staInfo->uspSuspend); - if (staInfo->currentPeerState == CSR_WIFI_ROUTER_CTRL_PEER_CONNECTED_ACTIVE) - { - spin_lock_irqsave(&priv->staRecord_lock, lock_flags); - staInfo->uapsdActive = FALSE; - staInfo->uspSuspend = FALSE; - spin_unlock_irqrestore(&priv->staRecord_lock, lock_flags); - } - } - } - unifi_trace(priv, UDBG2, "--resume_suspended_uapsd:\n"); -} - -#endif |