// SPDX-License-Identifier: GPL-2.0
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/******************************************************************************
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*
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* Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
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*
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******************************************************************************/
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#define _RTL8723BS_RECV_C_
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#include <drv_types.h>
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#include <rtw_debug.h>
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#include <rtl8723b_hal.h>
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static void initrecvbuf(struct recv_buf *precvbuf, struct adapter *padapter)
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{
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INIT_LIST_HEAD(&precvbuf->list);
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spin_lock_init(&precvbuf->recvbuf_lock);
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precvbuf->adapter = padapter;
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}
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static void update_recvframe_attrib(struct adapter *padapter,
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union recv_frame *precvframe,
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struct recv_stat *prxstat)
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{
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struct rx_pkt_attrib *pattrib;
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struct recv_stat report;
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PRXREPORT prxreport = (PRXREPORT)&report;
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report.rxdw0 = prxstat->rxdw0;
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report.rxdw1 = prxstat->rxdw1;
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report.rxdw2 = prxstat->rxdw2;
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report.rxdw3 = prxstat->rxdw3;
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report.rxdw4 = prxstat->rxdw4;
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report.rxdw5 = prxstat->rxdw5;
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pattrib = &precvframe->u.hdr.attrib;
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memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
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/* update rx report to recv_frame attribute */
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pattrib->pkt_rpt_type = prxreport->c2h_ind ? C2H_PACKET : NORMAL_RX;
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/* DBG_871X("%s: pkt_rpt_type =%d\n", __func__, pattrib->pkt_rpt_type); */
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if (pattrib->pkt_rpt_type == NORMAL_RX) {
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/* Normal rx packet */
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/* update rx report to recv_frame attribute */
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pattrib->pkt_len = (u16)prxreport->pktlen;
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pattrib->drvinfo_sz = (u8)(prxreport->drvinfosize << 3);
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pattrib->physt = (u8)prxreport->physt;
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pattrib->crc_err = (u8)prxreport->crc32;
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pattrib->icv_err = (u8)prxreport->icverr;
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pattrib->bdecrypted = (u8)(prxreport->swdec ? 0 : 1);
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pattrib->encrypt = (u8)prxreport->security;
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pattrib->qos = (u8)prxreport->qos;
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pattrib->priority = (u8)prxreport->tid;
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pattrib->amsdu = (u8)prxreport->amsdu;
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pattrib->seq_num = (u16)prxreport->seq;
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pattrib->frag_num = (u8)prxreport->frag;
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pattrib->mfrag = (u8)prxreport->mf;
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pattrib->mdata = (u8)prxreport->md;
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pattrib->data_rate = (u8)prxreport->rx_rate;
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} else {
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pattrib->pkt_len = (u16)prxreport->pktlen;
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}
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}
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/*
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* Notice:
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*Before calling this function,
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*precvframe->u.hdr.rx_data should be ready!
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*/
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static void update_recvframe_phyinfo(union recv_frame *precvframe,
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struct phy_stat *pphy_status)
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{
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struct adapter *padapter = precvframe->u.hdr.adapter;
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struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
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struct hal_com_data *p_hal_data = GET_HAL_DATA(padapter);
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struct odm_phy_info *p_phy_info =
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(struct odm_phy_info *)(&pattrib->phy_info);
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u8 *wlanhdr;
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u8 *my_bssid;
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u8 *rx_bssid;
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u8 *rx_ra;
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u8 *my_hwaddr;
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u8 *sa = NULL;
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struct odm_packet_info pkt_info = {
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.data_rate = 0x00,
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.station_id = 0x00,
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.bssid_match = false,
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.to_self = false,
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.is_beacon = false,
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};
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/* _irqL irqL; */
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struct sta_priv *pstapriv;
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struct sta_info *psta;
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wlanhdr = get_recvframe_data(precvframe);
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my_bssid = get_bssid(&padapter->mlmepriv);
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rx_bssid = get_hdr_bssid(wlanhdr);
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pkt_info.bssid_match = ((!IsFrameTypeCtrl(wlanhdr)) &&
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!pattrib->icv_err && !pattrib->crc_err &&
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ether_addr_equal(rx_bssid, my_bssid));
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rx_ra = get_ra(wlanhdr);
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my_hwaddr = myid(&padapter->eeprompriv);
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pkt_info.to_self = pkt_info.bssid_match &&
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ether_addr_equal(rx_ra, my_hwaddr);
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pkt_info.is_beacon = pkt_info.bssid_match &&
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(GetFrameSubType(wlanhdr) == WIFI_BEACON);
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sa = get_ta(wlanhdr);
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pkt_info.station_id = 0xFF;
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pstapriv = &padapter->stapriv;
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psta = rtw_get_stainfo(pstapriv, sa);
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if (psta) {
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pkt_info.station_id = psta->mac_id;
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/* DBG_8192C("%s ==> StationID(%d)\n",
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* __func__, pkt_info.station_id); */
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}
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pkt_info.data_rate = pattrib->data_rate;
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/* rtl8723b_query_rx_phy_status(precvframe, pphy_status); */
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/* spin_lock_bh(&p_hal_data->odm_stainfo_lock); */
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ODM_PhyStatusQuery(&p_hal_data->odmpriv, p_phy_info,
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(u8 *)pphy_status, &(pkt_info));
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if (psta)
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psta->rssi = pattrib->phy_info.RecvSignalPower;
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/* spin_unlock_bh(&p_hal_data->odm_stainfo_lock); */
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precvframe->u.hdr.psta = NULL;
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if (
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pkt_info.bssid_match &&
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(check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) == true)
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) {
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if (psta) {
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precvframe->u.hdr.psta = psta;
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rtl8723b_process_phy_info(padapter, precvframe);
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}
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} else if (pkt_info.to_self || pkt_info.is_beacon) {
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u32 adhoc_state = WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE;
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if (check_fwstate(&padapter->mlmepriv, adhoc_state))
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if (psta)
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precvframe->u.hdr.psta = psta;
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rtl8723b_process_phy_info(padapter, precvframe);
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}
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}
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static void rtl8723bs_c2h_packet_handler(struct adapter *padapter,
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u8 *pbuf, u16 length)
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{
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u8 *tmp = NULL;
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u8 res = false;
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if (length == 0)
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return;
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/* DBG_871X("+%s() length =%d\n", __func__, length); */
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tmp = rtw_zmalloc(length);
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if (!tmp)
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return;
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memcpy(tmp, pbuf, length);
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res = rtw_c2h_packet_wk_cmd(padapter, tmp, length);
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if (!res)
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kfree(tmp);
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/* DBG_871X("-%s res(%d)\n", __func__, res); */
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}
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static inline union recv_frame *try_alloc_recvframe(struct recv_priv *precvpriv,
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struct recv_buf *precvbuf)
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{
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union recv_frame *precvframe;
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precvframe = rtw_alloc_recvframe(&precvpriv->free_recv_queue);
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if (!precvframe) {
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DBG_8192C("%s: no enough recv frame!\n", __func__);
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rtw_enqueue_recvbuf_to_head(precvbuf,
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&precvpriv->recv_buf_pending_queue);
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/* The case of can't allocate recvframe should be temporary, */
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/* schedule again and hope recvframe is available next time. */
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tasklet_schedule(&precvpriv->recv_tasklet);
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}
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return precvframe;
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}
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static inline bool rx_crc_err(struct recv_priv *precvpriv,
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struct hal_com_data *p_hal_data,
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struct rx_pkt_attrib *pattrib,
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union recv_frame *precvframe)
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{
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/* fix Hardware RX data error, drop whole recv_buffer */
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if ((!(p_hal_data->ReceiveConfig & RCR_ACRC32)) && pattrib->crc_err) {
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DBG_8192C("%s()-%d: RX Warning! rx CRC ERROR !!\n",
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__func__, __LINE__);
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rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
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return true;
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}
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return false;
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}
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static inline bool pkt_exceeds_tail(struct recv_priv *precvpriv,
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u8 *end, u8 *tail,
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union recv_frame *precvframe)
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{
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if (end > tail) {
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DBG_8192C("%s()-%d: : next pkt len(%p,%d) exceed ptail(%p)!\n",
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__func__, __LINE__, ptr, pkt_offset, precvbuf->ptail);
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rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
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return true;
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}
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return false;
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}
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static void rtl8723bs_recv_tasklet(struct tasklet_struct *t)
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{
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struct adapter *padapter = from_tasklet(padapter, t,
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recvpriv.recv_tasklet);
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struct hal_com_data *p_hal_data;
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struct recv_priv *precvpriv;
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struct recv_buf *precvbuf;
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union recv_frame *precvframe;
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struct rx_pkt_attrib *pattrib;
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struct __queue *recv_buf_queue;
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u8 *ptr;
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u32 pkt_offset, skb_len, alloc_sz;
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_pkt *pkt_copy = NULL;
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u8 shift_sz = 0, rx_report_sz = 0;
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p_hal_data = GET_HAL_DATA(padapter);
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precvpriv = &padapter->recvpriv;
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recv_buf_queue = &precvpriv->recv_buf_pending_queue;
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do {
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precvbuf = rtw_dequeue_recvbuf(recv_buf_queue);
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if (!precvbuf)
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break;
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ptr = precvbuf->pdata;
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while (ptr < precvbuf->ptail) {
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precvframe = try_alloc_recvframe(precvpriv, precvbuf);
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if (!precvframe)
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return;
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/* rx desc parsing */
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update_recvframe_attrib(padapter, precvframe,
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(struct recv_stat *)ptr);
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pattrib = &precvframe->u.hdr.attrib;
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if (rx_crc_err(precvpriv, p_hal_data,
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pattrib, precvframe))
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break;
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rx_report_sz = RXDESC_SIZE + pattrib->drvinfo_sz;
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pkt_offset = rx_report_sz +
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pattrib->shift_sz +
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pattrib->pkt_len;
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if (pkt_exceeds_tail(precvpriv, ptr + pkt_offset,
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precvbuf->ptail, precvframe))
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break;
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if ((pattrib->crc_err) || (pattrib->icv_err)) {
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DBG_8192C("%s: crc_err =%d icv_err =%d, skip!\n",
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__func__, pattrib->crc_err,
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pattrib->icv_err);
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rtw_free_recvframe(precvframe,
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&precvpriv->free_recv_queue);
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} else {
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/* Modified by Albert 20101213 */
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/* For 8 bytes IP header alignment. */
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if (pattrib->qos) /* Qos data, wireless lan header length is 26 */
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shift_sz = 6;
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else
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shift_sz = 0;
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skb_len = pattrib->pkt_len;
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/* for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
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/* modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
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if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
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if (skb_len <= 1650)
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alloc_sz = 1664;
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else
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alloc_sz = skb_len + 14;
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} else {
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alloc_sz = skb_len;
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/* 6 is for IP header 8 bytes alignment in QoS packet case. */
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/* 8 is for skb->data 4 bytes alignment. */
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alloc_sz += 14;
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}
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pkt_copy = rtw_skb_alloc(alloc_sz);
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if (!pkt_copy) {
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DBG_8192C("%s: alloc_skb fail, drop frame\n", __func__);
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rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
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break;
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}
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pkt_copy->dev = padapter->pnetdev;
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precvframe->u.hdr.pkt = pkt_copy;
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skb_reserve(pkt_copy, 8 - ((SIZE_PTR)(pkt_copy->data) & 7));/* force pkt_copy->data at 8-byte alignment address */
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skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
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memcpy(pkt_copy->data, (ptr + rx_report_sz + pattrib->shift_sz), skb_len);
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precvframe->u.hdr.rx_head = pkt_copy->head;
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precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
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precvframe->u.hdr.rx_end = skb_end_pointer(pkt_copy);
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recvframe_put(precvframe, skb_len);
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/* recvframe_pull(precvframe, drvinfo_sz + RXDESC_SIZE); */
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if (p_hal_data->ReceiveConfig & RCR_APPFCS)
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recvframe_pull_tail(precvframe, IEEE80211_FCS_LEN);
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/* move to drv info position */
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ptr += RXDESC_SIZE;
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/* update drv info */
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if (p_hal_data->ReceiveConfig & RCR_APP_BA_SSN) {
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/* rtl8723s_update_bassn(padapter, pdrvinfo); */
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ptr += 4;
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}
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if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
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if (pattrib->physt)
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update_recvframe_phyinfo(precvframe, (struct phy_stat *)ptr);
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if (rtw_recv_entry(precvframe) != _SUCCESS) {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_dump_, ("%s: rtw_recv_entry(precvframe) != _SUCCESS\n", __func__));
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}
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} else if (pattrib->pkt_rpt_type == C2H_PACKET) {
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C2H_EVT_HDR C2hEvent;
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u16 len_c2h = pattrib->pkt_len;
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u8 *pbuf_c2h = precvframe->u.hdr.rx_data;
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u8 *pdata_c2h;
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C2hEvent.CmdID = pbuf_c2h[0];
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C2hEvent.CmdSeq = pbuf_c2h[1];
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C2hEvent.CmdLen = (len_c2h-2);
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pdata_c2h = pbuf_c2h+2;
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if (C2hEvent.CmdID == C2H_CCX_TX_RPT)
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CCX_FwC2HTxRpt_8723b(padapter, pdata_c2h, C2hEvent.CmdLen);
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else
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rtl8723bs_c2h_packet_handler(padapter, precvframe->u.hdr.rx_data, pattrib->pkt_len);
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rtw_free_recvframe(precvframe, &precvpriv->free_recv_queue);
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}
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}
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pkt_offset = round_up(pkt_offset, 8);
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precvbuf->pdata += pkt_offset;
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ptr = precvbuf->pdata;
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precvframe = NULL;
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pkt_copy = NULL;
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}
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rtw_enqueue_recvbuf(precvbuf, &precvpriv->free_recv_buf_queue);
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} while (1);
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}
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/*
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* Initialize recv private variable for hardware dependent
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* 1. recv buf
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* 2. recv tasklet
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*
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*/
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s32 rtl8723bs_init_recv_priv(struct adapter *padapter)
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{
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s32 res;
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u32 i, n;
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struct recv_priv *precvpriv;
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struct recv_buf *precvbuf;
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res = _SUCCESS;
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precvpriv = &padapter->recvpriv;
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/* 3 1. init recv buffer */
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_rtw_init_queue(&precvpriv->free_recv_buf_queue);
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_rtw_init_queue(&precvpriv->recv_buf_pending_queue);
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n = NR_RECVBUFF * sizeof(struct recv_buf) + 4;
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precvpriv->pallocated_recv_buf = rtw_zmalloc(n);
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if (!precvpriv->pallocated_recv_buf) {
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res = _FAIL;
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("alloc recv_buf fail!\n"));
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goto exit;
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}
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precvpriv->precv_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_recv_buf), 4);
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/* init each recv buffer */
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precvbuf = (struct recv_buf *)precvpriv->precv_buf;
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for (i = 0; i < NR_RECVBUFF; i++) {
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initrecvbuf(precvbuf, padapter);
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if (!precvbuf->pskb) {
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SIZE_PTR tmpaddr = 0;
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SIZE_PTR alignment = 0;
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precvbuf->pskb = rtw_skb_alloc(MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
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if (precvbuf->pskb) {
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precvbuf->pskb->dev = padapter->pnetdev;
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tmpaddr = (SIZE_PTR)precvbuf->pskb->data;
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alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
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skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
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}
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if (!precvbuf->pskb) {
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DBG_871X("%s: alloc_skb fail!\n", __func__);
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}
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}
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list_add_tail(&precvbuf->list, &precvpriv->free_recv_buf_queue.queue);
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precvbuf++;
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}
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precvpriv->free_recv_buf_queue_cnt = i;
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if (res == _FAIL)
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goto initbuferror;
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/* 3 2. init tasklet */
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tasklet_setup(&precvpriv->recv_tasklet, rtl8723bs_recv_tasklet);
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|
goto exit;
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|
initbuferror:
|
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
|
if (precvbuf) {
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n = precvpriv->free_recv_buf_queue_cnt;
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precvpriv->free_recv_buf_queue_cnt = 0;
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for (i = 0; i < n ; i++) {
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list_del_init(&precvbuf->list);
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rtw_os_recvbuf_resource_free(padapter, precvbuf);
|
precvbuf++;
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}
|
precvpriv->precv_buf = NULL;
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}
|
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kfree(precvpriv->pallocated_recv_buf);
|
precvpriv->pallocated_recv_buf = NULL;
|
|
exit:
|
return res;
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}
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|
/*
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* Free recv private variable of hardware dependent
|
* 1. recv buf
|
* 2. recv tasklet
|
*
|
*/
|
void rtl8723bs_free_recv_priv(struct adapter *padapter)
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{
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u32 i;
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struct recv_priv *precvpriv;
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struct recv_buf *precvbuf;
|
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precvpriv = &padapter->recvpriv;
|
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/* 3 1. kill tasklet */
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tasklet_kill(&precvpriv->recv_tasklet);
|
|
/* 3 2. free all recv buffers */
|
precvbuf = (struct recv_buf *)precvpriv->precv_buf;
|
if (precvbuf) {
|
precvpriv->free_recv_buf_queue_cnt = 0;
|
for (i = 0; i < NR_RECVBUFF; i++) {
|
list_del_init(&precvbuf->list);
|
rtw_os_recvbuf_resource_free(padapter, precvbuf);
|
precvbuf++;
|
}
|
precvpriv->precv_buf = NULL;
|
}
|
|
kfree(precvpriv->pallocated_recv_buf);
|
precvpriv->pallocated_recv_buf = NULL;
|
}
|
