/******************************************************************************
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*
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* Copyright(c) 2015 - 2016 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#define _RTL8822BE_RECV_C_
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#include <drv_types.h> /* PADAPTER and etc. */
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#include <hal_data.h> /* HAL_DATA_TYPE */
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#include "../rtl8822b.h"
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#include "rtl8822be.h"
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/* Debug Buffer Descriptor Ring */
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/*#define BUF_DESC_DEBUG*/
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#ifdef BUF_DESC_DEBUG
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#define buf_desc_debug(...) do {\
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RTW_INFO("BUF_DESC:" __VA_ARGS__);\
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} while (0)
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#else
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#define buf_desc_debug(...) do {} while (0)
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#endif
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/*
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* Wait until rx data is ready
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* return value: _SUCCESS if Rx packet is ready, _FAIL if not ready
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*/
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static u32 rtl8822be_wait_rxrdy(_adapter *padapter,
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u8 *rx_bd, u16 rx_q_idx)
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{
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struct recv_priv *r_priv = &padapter->recvpriv;
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u8 first_seg = 0, last_seg = 0;
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u16 total_len = 0, read_cnt = 0;
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static BOOLEAN start_rx = _FALSE;
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u16 status = _SUCCESS;
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
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if (rx_bd == NULL)
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return _FAIL;
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total_len = (u2Byte)GET_RX_BD_TOTALRXPKTSIZE(rx_bd);
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first_seg = (u1Byte)GET_RX_BD_FS(rx_bd);
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last_seg = (u1Byte)GET_RX_BD_LS(rx_bd);
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buf_desc_debug("RX:%s enter: rx_bd addr = %p, total_len=%d, first_seg=%d, last_seg=%d, read_cnt %d, index %d, address %p\n",
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__func__,
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(u8 *)&r_priv->rx_ring[rx_q_idx].desc[r_priv->rx_ring[rx_q_idx].idx],
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total_len, first_seg, last_seg, read_cnt,
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r_priv->rx_ring[rx_q_idx].idx, rx_bd);
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#if defined(USING_RX_TAG)
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/* Rx Tag not ported */
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if (!start_rx) {
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start_rx = _TRUE;
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pHalData->RxTag = 1;
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} else {
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while (total_len != (pHalData->RxTag + 1)) {
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read_cnt++;
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total_len = (u2Byte)GET_RX_BD_TOTALRXPKTSIZE(rx_bd);
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first_seg = (u1Byte)GET_RX_BD_FS(rx_bd);
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last_seg = (u1Byte)GET_RX_BD_LS(rx_bd);
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if (read_cnt > 10000) {
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pHalData->RxTag = total_len;
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break;
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}
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if (total_len == 0 && pHalData->RxTag == 0x1fff)
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break;
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}
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pHalData->RxTag = total_len;
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}
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#else
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while (total_len == 0) {
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read_cnt++;
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total_len = (u2Byte) GET_RX_BD_TOTALRXPKTSIZE(rx_bd);
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first_seg = (u1Byte) GET_RX_BD_FS(rx_bd);
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last_seg = (u1Byte) GET_RX_BD_LS(rx_bd);
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if (read_cnt > 20) {
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status = _FAIL;
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break;
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}
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}
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#endif
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buf_desc_debug("RX:%s exit total_len=%d, rx_tag = %d, first_seg=%d, last_seg=%d, read_cnt %d\n",
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__func__, total_len, pHalData->RxTag,
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first_seg, last_seg, read_cnt);
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return status;
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}
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/*
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* Check the number of rxdec to be handled between
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* "index of RX queue descriptor maintained by host (write pointer)" and
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* "index of RX queue descriptor maintained by hardware (read pointer)"
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*/
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#ifdef CONFIG_NAPI
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u16 rtl8822be_check_rxdesc_remain(_adapter *padapter, int rx_queue_idx)
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#else
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static u16 rtl8822be_check_rxdesc_remain(_adapter *padapter, int rx_queue_idx)
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#endif
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{
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struct recv_priv *r_priv = &padapter->recvpriv;
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u16 desc_idx_hw = 0, desc_idx_host = 0, num_rxdesc_to_handle = 0;
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u32 tmp_4bytes = 0;
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static BOOLEAN start_rx = FALSE;
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tmp_4bytes = rtw_read32(padapter, REG_RXQ_RXBD_IDX_8822B);
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desc_idx_hw = (u16)((tmp_4bytes >> 16) & 0x7ff);
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desc_idx_host = (u16)(tmp_4bytes & 0x7ff);
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/*
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* make sure driver does not handle packet if hardware pointer
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* keeps in zero in initial state
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*/
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buf_desc_debug("RX:%s(%d) reg_value %x\n", __func__, __LINE__,
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tmp_4bytes);
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if (desc_idx_hw > 0)
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start_rx = TRUE;
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if (!start_rx)
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return 0;
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if (desc_idx_hw < desc_idx_host)
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/* hw idx is turn around */
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num_rxdesc_to_handle = RX_BD_NUM_8822BE - desc_idx_host + desc_idx_hw;
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else
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num_rxdesc_to_handle = desc_idx_hw - desc_idx_host;
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if (num_rxdesc_to_handle == 0)
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return 0;
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r_priv->rx_ring[rx_queue_idx].idx = desc_idx_host;
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buf_desc_debug("RX:%s reg_val %x, hw_idx %x, host_idx %x, desc to handle = %d\n",
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__func__, tmp_4bytes, desc_idx_hw, desc_idx_host, num_rxdesc_to_handle);
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return num_rxdesc_to_handle;
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}
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static void rtl8822be_query_rx_desc_status(union recv_frame *precvframe,
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u8 *pdesc)
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{
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struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
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_rtw_memset(pattrib, 0, sizeof(struct rx_pkt_attrib));
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/* Offset 0 */
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pattrib->pkt_len = (u16)GET_RX_DESC_PKT_LEN_8822B(pdesc);
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pattrib->crc_err = (u8)GET_RX_DESC_CRC32_8822B(pdesc);
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pattrib->icv_err = (u8)GET_RX_DESC_ICV_ERR_8822B(pdesc);
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pattrib->drvinfo_sz = (u8)GET_RX_DESC_DRV_INFO_SIZE_8822B(pdesc) * 8;
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pattrib->encrypt = (u8)GET_RX_DESC_SECURITY_8822B(pdesc);
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pattrib->qos = (u8)GET_RX_DESC_QOS_8822B(pdesc);
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pattrib->shift_sz = (u8)GET_RX_DESC_SHIFT_8822B(pdesc);
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pattrib->physt = (u8)GET_RX_DESC_PHYST_8822B(pdesc);
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pattrib->bdecrypted = !GET_RX_DESC_SWDEC_8822B(pdesc);
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/* Offset 1 */
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pattrib->priority = (u8)GET_RX_DESC_TID_8822B(pdesc);
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pattrib->mdata = (u8)GET_RX_DESC_MD_8822B(pdesc);
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pattrib->mfrag = (u8)GET_RX_DESC_MF_8822B(pdesc);
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/* Offset 8 */
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pattrib->seq_num = (u16)GET_RX_DESC_SEQ_8822B(pdesc);
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pattrib->frag_num = (u8)GET_RX_DESC_FRAG_8822B(pdesc);
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if (GET_RX_DESC_C2H_8822B(pdesc))
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pattrib->pkt_rpt_type = C2H_PACKET;
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else
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pattrib->pkt_rpt_type = NORMAL_RX;
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/* Offset 12 */
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pattrib->data_rate = (u8)GET_RX_DESC_RX_RATE_8822B(pdesc);
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/* Offset 16 */
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/* Offset 20 */
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}
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#ifdef CONFIG_NAPI
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int rtl8822be_rx_mpdu(_adapter *padapter, int remaing_rxdesc, int budget)
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#else
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static void rtl8822be_rx_mpdu(_adapter *padapter)
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#endif
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{
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struct recv_priv *r_priv = &padapter->recvpriv;
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struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
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_queue *pfree_recv_queue = &r_priv->free_recv_queue;
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
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union recv_frame *precvframe = NULL;
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u8 *pphy_info = NULL;
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struct rx_pkt_attrib *pattrib = NULL;
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int rx_q_idx = RX_MPDU_QUEUE;
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u32 count = r_priv->rxringcount;
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u8 *rx_bd;
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struct sk_buff *skb;
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#ifdef CONFIG_NAPI
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int rx = 0;
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u32 status;
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#else
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u16 remaing_rxdesc = 0;
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#endif
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/* RX NORMAL PKT */
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#ifdef CONFIG_NAPI
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while ((rx < budget) && remaing_rxdesc) {
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#else
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remaing_rxdesc = rtl8822be_check_rxdesc_remain(padapter, rx_q_idx);
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while (remaing_rxdesc) {
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#endif
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/* rx descriptor */
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rx_bd = (u8 *)&r_priv->rx_ring[rx_q_idx].buf_desc[r_priv->rx_ring[rx_q_idx].idx];
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/* rx packet */
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skb = r_priv->rx_ring[rx_q_idx].rx_buf[r_priv->rx_ring[rx_q_idx].idx];
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buf_desc_debug("RX:%s(%d), rx_bd addr = %x, total_len = %d, ring idx = %d\n",
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__func__, __LINE__, (u32)rx_bd,
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GET_RX_BD_TOTALRXPKTSIZE(rx_bd),
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r_priv->rx_ring[rx_q_idx].idx);
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buf_desc_debug("RX:%s(%d), skb(rx_buf)=%x, buf addr(virtual = %x, phisycal = %x)\n",
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__func__, __LINE__, (u32)skb,
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(u32)(skb_tail_pointer(skb)),
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GET_RX_BD_PHYSICAL_ADDR_LOW(rx_bd));
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/* wait until packet is ready. this operation is similar to
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* check own bit and should be called before pci_unmap_single
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* which release memory mapping
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*/
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if (rtl8822be_wait_rxrdy(padapter, rx_bd, rx_q_idx) !=
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_SUCCESS)
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buf_desc_debug("RX:%s(%d) packet not ready\n",
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__func__, __LINE__);
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{
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DBG_COUNTER(padapter->rx_logs.intf_rx);
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precvframe = rtw_alloc_recvframe(pfree_recv_queue);
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if (precvframe == NULL) {
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RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
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("recvbuf2recvframe: precvframe==NULL\n"));
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DBG_COUNTER(padapter->rx_logs.intf_rx_err_recvframe);
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goto done;
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}
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_rtw_init_listhead(&precvframe->u.hdr.list);
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precvframe->u.hdr.len = 0;
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pci_unmap_single(pdvobjpriv->ppcidev,
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*((dma_addr_t *)skb->cb),
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r_priv->rxbuffersize,
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PCI_DMA_FROMDEVICE);
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rtl8822be_query_rx_desc_status(precvframe, skb->data);
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pattrib = &precvframe->u.hdr.attrib;
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#ifdef CONFIG_RX_PACKET_APPEND_FCS
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{
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struct mlme_priv *mlmepriv =
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&padapter->mlmepriv;
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if (check_fwstate(mlmepriv,
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WIFI_MONITOR_STATE) == _FALSE)
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if (pattrib->pkt_rpt_type == NORMAL_RX)
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pattrib->pkt_len -=
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IEEE80211_FCS_LEN;
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}
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#endif
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buf_desc_debug("RX:%s(%d), pkt_len = %d, pattrib->drvinfo_sz = %d, pattrib->qos = %d, pattrib->shift_sz = %d\n",
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__func__, __LINE__, pattrib->pkt_len,
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pattrib->drvinfo_sz, pattrib->qos,
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pattrib->shift_sz);
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if (rtw_os_alloc_recvframe(padapter, precvframe,
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(skb->data + HALMAC_RX_DESC_SIZE_8822B +
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pattrib->drvinfo_sz + pattrib->shift_sz),
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skb) == _FAIL) {
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rtw_free_recvframe(precvframe,
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&r_priv->free_recv_queue);
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RTW_INFO("rtl8822be_rx_mpdu:can't allocate memory for skb copy\n");
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*((dma_addr_t *) skb->cb) =
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pci_map_single(pdvobjpriv->ppcidev,
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skb_tail_pointer(skb),
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r_priv->rxbuffersize,
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PCI_DMA_FROMDEVICE);
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DBG_COUNTER(padapter->rx_logs.intf_rx_err_skb);
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goto done;
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}
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recvframe_put(precvframe, pattrib->pkt_len);
|
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if (pattrib->pkt_rpt_type == NORMAL_RX) {
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/* Normal rx packet */
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if (pattrib->physt)
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pphy_info = (u8 *)(skb->data) +
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HALMAC_RX_DESC_SIZE_8822B;
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#ifdef CONFIG_CONCURRENT_MODE
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pre_recv_entry(precvframe, pphy_info);
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#endif
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if (pattrib->physt && pphy_info)
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rx_query_phy_status(precvframe,
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pphy_info);
|
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if (rtw_recv_entry(precvframe) != _SUCCESS)
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RT_TRACE(_module_hci_ops_os_c_,
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_drv_info_,
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("recvbuf2recvframe: rtw_recv_entry() Fail\n"));
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} else {
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if (pattrib->pkt_rpt_type == C2H_PACKET) {
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rtl8822b_c2h_handler_no_io(padapter,
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skb->data,
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HALMAC_RX_DESC_SIZE_8822B +
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pattrib->pkt_len);
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} else
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DBG_COUNTER(padapter->rx_logs.intf_rx_report);
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rtw_free_recvframe(precvframe,
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pfree_recv_queue);
|
}
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*((dma_addr_t *) skb->cb) =
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pci_map_single(pdvobjpriv->ppcidev,
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skb_tail_pointer(skb),
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r_priv->rxbuffersize,
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PCI_DMA_FROMDEVICE);
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}
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done:
|
|
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SET_RX_BD_PHYSICAL_ADDR_LOW(rx_bd, *((dma_addr_t *)skb->cb));
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SET_RX_BD_RXBUFFSIZE(rx_bd, r_priv->rxbuffersize);
|
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r_priv->rx_ring[rx_q_idx].idx =
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(r_priv->rx_ring[rx_q_idx].idx + 1) %
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r_priv->rxringcount;
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rtw_write16(padapter, REG_RXQ_RXBD_IDX,
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r_priv->rx_ring[rx_q_idx].idx);
|
|
buf_desc_debug("RX:%s(%d) reg_value %x\n", __func__, __LINE__,
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rtw_read32(padapter, REG_RXQ_RXBD_IDX));
|
|
remaing_rxdesc--;
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#ifdef CONFIG_NAPI
|
rx++;
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#endif
|
}
|
#ifdef CONFIG_NAPI
|
return rx;
|
#endif
|
}
|
|
#ifndef CONFIG_NAPI
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static void rtl8822be_recv_tasklet(void *priv)
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{
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_irqL irqL;
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_adapter *padapter = (_adapter *)priv;
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HAL_DATA_TYPE *pHalData = GET_HAL_DATA(padapter);
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struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
|
|
rtl8822be_rx_mpdu(padapter);
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_enter_critical(&pdvobjpriv->irq_th_lock, &irqL);
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pHalData->IntrMask[0] |= (BIT_RXOK_MSK_8822B | BIT_RDU_MSK_8822B);
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pHalData->IntrMask[1] |= BIT_FOVW_MSK_8822B;
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rtw_write32(padapter, REG_HIMR0_8822B, pHalData->IntrMask[0]);
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rtw_write32(padapter, REG_HIMR1_8822B, pHalData->IntrMask[1]);
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_exit_critical(&pdvobjpriv->irq_th_lock, &irqL);
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}
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#endif
|
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static void rtl8822be_xmit_beacon(PADAPTER Adapter)
|
{
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#if defined(CONFIG_AP_MODE) && defined(CONFIG_NATIVEAP_MLME)
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struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
|
|
if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
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/* send_beacon(Adapter); */
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if (pmlmepriv->update_bcn == _TRUE)
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tx_beacon_hdl(Adapter, NULL);
|
}
|
#endif
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}
|
|
static void rtl8822be_prepare_bcn_tasklet(void *priv)
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{
|
_adapter *padapter = (_adapter *)priv;
|
|
rtl8822be_xmit_beacon(padapter);
|
}
|
|
s32 rtl8822be_init_recv_priv(_adapter *padapter)
|
{
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struct recv_priv *precvpriv = &padapter->recvpriv;
|
s32 ret = _SUCCESS;
|
|
_func_enter_;
|
|
#ifdef PLATFORM_LINUX
|
#ifndef CONFIG_NAPI
|
tasklet_init(&precvpriv->recv_tasklet,
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(void(*)(unsigned long))rtl8822be_recv_tasklet,
|
(unsigned long)padapter);
|
#endif
|
|
tasklet_init(&precvpriv->irq_prepare_beacon_tasklet,
|
(void(*)(unsigned long))rtl8822be_prepare_bcn_tasklet,
|
(unsigned long)padapter);
|
#endif
|
|
_func_exit_;
|
|
return ret;
|
}
|
|
void rtl8822be_free_recv_priv(_adapter *padapter)
|
{
|
_func_enter_;
|
|
_func_exit_;
|
}
|
|
int rtl8822be_init_rxbd_ring(_adapter *padapter)
|
{
|
struct recv_priv *r_priv = &padapter->recvpriv;
|
struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
|
struct pci_dev *pdev = pdvobjpriv->ppcidev;
|
struct net_device *dev = padapter->pnetdev;
|
dma_addr_t *mapping = NULL;
|
struct sk_buff *skb = NULL;
|
u8 *rx_desc = NULL;
|
int i, rx_queue_idx;
|
|
_func_enter_;
|
|
/* rx_queue_idx 0:RX_MPDU_QUEUE */
|
/* rx_queue_idx 1:RX_CMD_QUEUE */
|
for (rx_queue_idx = 0; rx_queue_idx < 1; rx_queue_idx++) {
|
r_priv->rx_ring[rx_queue_idx].buf_desc =
|
pci_alloc_consistent(pdev,
|
sizeof(*r_priv->rx_ring[rx_queue_idx].buf_desc) *
|
r_priv->rxringcount,
|
&r_priv->rx_ring[rx_queue_idx].dma);
|
|
if (!r_priv->rx_ring[rx_queue_idx].buf_desc ||
|
(unsigned long)r_priv->rx_ring[rx_queue_idx].buf_desc &
|
0xFF) {
|
RTW_INFO("Cannot allocate RX ring\n");
|
return _FAIL;
|
}
|
|
_rtw_memset(r_priv->rx_ring[rx_queue_idx].buf_desc, 0,
|
sizeof(*r_priv->rx_ring[rx_queue_idx].buf_desc) *
|
r_priv->rxringcount);
|
r_priv->rx_ring[rx_queue_idx].idx = 0;
|
|
for (i = 0; i < r_priv->rxringcount; i++) {
|
skb = dev_alloc_skb(r_priv->rxbuffersize);
|
if (!skb) {
|
RTW_INFO("Cannot allocate skb for RX ring\n");
|
return _FAIL;
|
}
|
|
rx_desc =
|
(u8 *)(&r_priv->rx_ring[rx_queue_idx].buf_desc[i]);
|
r_priv->rx_ring[rx_queue_idx].rx_buf[i] = skb;
|
mapping = (dma_addr_t *)skb->cb;
|
|
/* just set skb->cb to mapping addr
|
* for pci_unmap_single use */
|
*mapping = pci_map_single(pdev, skb_tail_pointer(skb),
|
r_priv->rxbuffersize,
|
PCI_DMA_FROMDEVICE);
|
|
/* Reset FS, LS, Total len */
|
SET_RX_BD_LS(rx_desc, 0);
|
SET_RX_BD_FS(rx_desc, 0);
|
SET_RX_BD_TOTALRXPKTSIZE(rx_desc, 0);
|
SET_RX_BD_RXBUFFSIZE(rx_desc, r_priv->rxbuffersize);
|
SET_RX_BD_PHYSICAL_ADDR_LOW(rx_desc, *mapping);
|
|
buf_desc_debug("RX:rx buffer desc addr[%d] = %x, skb(rx_buf) = %x, buffer addr (virtual = %x, physical = %x)\n",
|
i, (u32)&r_priv->rx_ring[rx_queue_idx].buf_desc[i],
|
(u32)r_priv->rx_ring[rx_queue_idx].rx_buf[i],
|
(u32)(skb_tail_pointer(skb)), (u32)(*mapping));
|
}
|
}
|
|
_func_exit_;
|
|
return _SUCCESS;
|
}
|
|
void rtl8822be_free_rxbd_ring(_adapter *padapter)
|
{
|
struct recv_priv *r_priv = &padapter->recvpriv;
|
struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
|
struct pci_dev *pdev = pdvobjpriv->ppcidev;
|
int i, rx_queue_idx;
|
|
_func_enter_;
|
|
/* rx_queue_idx 0:RX_MPDU_QUEUE */
|
/* rx_queue_idx 1:RX_CMD_QUEUE */
|
for (rx_queue_idx = 0; rx_queue_idx < 1; rx_queue_idx++) {
|
for (i = 0; i < r_priv->rxringcount; i++) {
|
struct sk_buff *skb;
|
|
skb = r_priv->rx_ring[rx_queue_idx].rx_buf[i];
|
|
if (!skb)
|
continue;
|
|
pci_unmap_single(pdev,
|
*((dma_addr_t *) skb->cb),
|
r_priv->rxbuffersize,
|
PCI_DMA_FROMDEVICE);
|
kfree_skb(skb);
|
}
|
|
pci_free_consistent(pdev,
|
sizeof(*r_priv->rx_ring[rx_queue_idx].buf_desc) *
|
r_priv->rxringcount,
|
r_priv->rx_ring[rx_queue_idx].buf_desc,
|
r_priv->rx_ring[rx_queue_idx].dma);
|
r_priv->rx_ring[rx_queue_idx].buf_desc = NULL;
|
}
|
|
_func_exit_;
|
}
|
