1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2/* Copyright(c) 2018-2019 Realtek Corporation 3 */ 4 5#include "main.h" 6#include "rx.h" 7#include "ps.h" 8#include "debug.h" 9 10void rtw_rx_stats(struct rtw_dev *rtwdev, struct ieee80211_vif *vif, 11 struct sk_buff *skb) 12{ 13 struct ieee80211_hdr *hdr; 14 struct rtw_vif *rtwvif; 15 16 hdr = (struct ieee80211_hdr *)skb->data; 17 18 if (!ieee80211_is_data(hdr->frame_control)) 19 return; 20 21 if (!is_broadcast_ether_addr(hdr->addr1) && 22 !is_multicast_ether_addr(hdr->addr1)) { 23 rtwdev->stats.rx_unicast += skb->len; 24 rtwdev->stats.rx_cnt++; 25 if (vif) { 26 rtwvif = (struct rtw_vif *)vif->drv_priv; 27 rtwvif->stats.rx_unicast += skb->len; 28 rtwvif->stats.rx_cnt++; 29 } 30 } 31} 32EXPORT_SYMBOL(rtw_rx_stats); 33 34struct rtw_rx_addr_match_data { 35 struct rtw_dev *rtwdev; 36 struct ieee80211_hdr *hdr; 37 struct rtw_rx_pkt_stat *pkt_stat; 38 u8 *bssid; 39}; 40 41static void rtw_rx_phy_stat(struct rtw_dev *rtwdev, 42 struct rtw_rx_pkt_stat *pkt_stat, 43 struct ieee80211_hdr *hdr) 44{ 45 struct rtw_dm_info *dm_info = &rtwdev->dm_info; 46 struct rtw_pkt_count *cur_pkt_cnt = &dm_info->cur_pkt_count; 47 u8 rate_ss, rate_ss_evm, evm_id; 48 u8 i, idx; 49 50 dm_info->curr_rx_rate = pkt_stat->rate; 51 52 if (ieee80211_is_beacon(hdr->frame_control)) 53 cur_pkt_cnt->num_bcn_pkt++; 54 55 switch (pkt_stat->rate) { 56 case DESC_RATE1M...DESC_RATE11M: 57 goto pkt_num; 58 case DESC_RATE6M...DESC_RATE54M: 59 rate_ss = 0; 60 rate_ss_evm = 1; 61 evm_id = RTW_EVM_OFDM; 62 break; 63 case DESC_RATEMCS0...DESC_RATEMCS7: 64 case DESC_RATEVHT1SS_MCS0...DESC_RATEVHT1SS_MCS9: 65 rate_ss = 1; 66 rate_ss_evm = 1; 67 evm_id = RTW_EVM_1SS; 68 break; 69 case DESC_RATEMCS8...DESC_RATEMCS15: 70 case DESC_RATEVHT2SS_MCS0...DESC_RATEVHT2SS_MCS9: 71 rate_ss = 2; 72 rate_ss_evm = 2; 73 evm_id = RTW_EVM_2SS_A; 74 break; 75 default: 76 rtw_warn(rtwdev, "unknown pkt rate = %d\n", pkt_stat->rate); 77 return; 78 } 79 80 for (i = 0; i < rate_ss_evm; i++) { 81 idx = evm_id + i; 82 ewma_evm_add(&dm_info->ewma_evm[idx], 83 dm_info->rx_evm_dbm[i]); 84 } 85 86 for (i = 0; i < rtwdev->hal.rf_path_num; i++) { 87 idx = RTW_SNR_OFDM_A + 4 * rate_ss + i; 88 ewma_snr_add(&dm_info->ewma_snr[idx], 89 dm_info->rx_snr[i]); 90 } 91pkt_num: 92 cur_pkt_cnt->num_qry_pkt[pkt_stat->rate]++; 93} 94 95static void rtw_rx_addr_match_iter(void *data, u8 *mac, 96 struct ieee80211_vif *vif) 97{ 98 struct rtw_rx_addr_match_data *iter_data = data; 99 struct ieee80211_sta *sta; 100 struct ieee80211_hdr *hdr = iter_data->hdr; 101 struct rtw_dev *rtwdev = iter_data->rtwdev; 102 struct rtw_sta_info *si; 103 struct rtw_rx_pkt_stat *pkt_stat = iter_data->pkt_stat; 104 u8 *bssid = iter_data->bssid; 105 106 if (!ether_addr_equal(vif->bss_conf.bssid, bssid)) 107 return; 108 109 if (!(ether_addr_equal(vif->addr, hdr->addr1) || 110 ieee80211_is_beacon(hdr->frame_control))) 111 return; 112 113 rtw_rx_phy_stat(rtwdev, pkt_stat, hdr); 114 sta = ieee80211_find_sta_by_ifaddr(rtwdev->hw, hdr->addr2, 115 vif->addr); 116 if (!sta) 117 return; 118 119 si = (struct rtw_sta_info *)sta->drv_priv; 120 ewma_rssi_add(&si->avg_rssi, pkt_stat->rssi); 121} 122 123static void rtw_rx_addr_match(struct rtw_dev *rtwdev, 124 struct rtw_rx_pkt_stat *pkt_stat, 125 struct ieee80211_hdr *hdr) 126{ 127 struct rtw_rx_addr_match_data data = {}; 128 129 if (pkt_stat->crc_err || pkt_stat->icv_err || !pkt_stat->phy_status || 130 ieee80211_is_ctl(hdr->frame_control)) 131 return; 132 133 data.rtwdev = rtwdev; 134 data.hdr = hdr; 135 data.pkt_stat = pkt_stat; 136 data.bssid = get_hdr_bssid(hdr); 137 138 rtw_iterate_vifs_atomic(rtwdev, rtw_rx_addr_match_iter, &data); 139} 140 141void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev, 142 struct rtw_rx_pkt_stat *pkt_stat, 143 struct ieee80211_hdr *hdr, 144 struct ieee80211_rx_status *rx_status, 145 u8 *phy_status) 146{ 147 struct ieee80211_hw *hw = rtwdev->hw; 148 u8 path; 149 150 memset(rx_status, 0, sizeof(*rx_status)); 151 rx_status->freq = hw->conf.chandef.chan->center_freq; 152 rx_status->band = hw->conf.chandef.chan->band; 153 if (pkt_stat->crc_err) 154 rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; 155 if (pkt_stat->decrypted) 156 rx_status->flag |= RX_FLAG_DECRYPTED; 157 158 if (pkt_stat->rate >= DESC_RATEVHT1SS_MCS0) 159 rx_status->encoding = RX_ENC_VHT; 160 else if (pkt_stat->rate >= DESC_RATEMCS0) 161 rx_status->encoding = RX_ENC_HT; 162 163 if (rx_status->band == NL80211_BAND_5GHZ && 164 pkt_stat->rate >= DESC_RATE6M && 165 pkt_stat->rate <= DESC_RATE54M) { 166 rx_status->rate_idx = pkt_stat->rate - DESC_RATE6M; 167 } else if (rx_status->band == NL80211_BAND_2GHZ && 168 pkt_stat->rate >= DESC_RATE1M && 169 pkt_stat->rate <= DESC_RATE54M) { 170 rx_status->rate_idx = pkt_stat->rate - DESC_RATE1M; 171 } else if (pkt_stat->rate >= DESC_RATEMCS0) { 172 rtw_desc_to_mcsrate(pkt_stat->rate, &rx_status->rate_idx, 173 &rx_status->nss); 174 } 175 176 rx_status->flag |= RX_FLAG_MACTIME_START; 177 rx_status->mactime = pkt_stat->tsf_low; 178 179 if (pkt_stat->bw == RTW_CHANNEL_WIDTH_80) 180 rx_status->bw = RATE_INFO_BW_80; 181 else if (pkt_stat->bw == RTW_CHANNEL_WIDTH_40) 182 rx_status->bw = RATE_INFO_BW_40; 183 else 184 rx_status->bw = RATE_INFO_BW_20; 185 186 rx_status->signal = pkt_stat->signal_power; 187 for (path = 0; path < rtwdev->hal.rf_path_num; path++) { 188 rx_status->chains |= BIT(path); 189 rx_status->chain_signal[path] = pkt_stat->rx_power[path]; 190 } 191 192 rtw_rx_addr_match(rtwdev, pkt_stat, hdr); 193} 194EXPORT_SYMBOL(rtw_rx_fill_rx_status); 195