Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 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" |
Tsang-Shian Lin | 082a36d | 2019-10-22 18:04:20 +0800 | [diff] [blame] | 8 | #include "debug.h" |
Po-Hao Huang | 10d162b | 2021-12-21 16:50:10 +0800 | [diff] [blame] | 9 | #include "fw.h" |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 10 | |
| 11 | void rtw_rx_stats(struct rtw_dev *rtwdev, struct ieee80211_vif *vif, |
| 12 | struct sk_buff *skb) |
| 13 | { |
| 14 | struct ieee80211_hdr *hdr; |
| 15 | struct rtw_vif *rtwvif; |
| 16 | |
| 17 | hdr = (struct ieee80211_hdr *)skb->data; |
| 18 | |
| 19 | if (!ieee80211_is_data(hdr->frame_control)) |
| 20 | return; |
| 21 | |
| 22 | if (!is_broadcast_ether_addr(hdr->addr1) && |
| 23 | !is_multicast_ether_addr(hdr->addr1)) { |
| 24 | rtwdev->stats.rx_unicast += skb->len; |
| 25 | rtwdev->stats.rx_cnt++; |
| 26 | if (vif) { |
| 27 | rtwvif = (struct rtw_vif *)vif->drv_priv; |
| 28 | rtwvif->stats.rx_unicast += skb->len; |
| 29 | rtwvif->stats.rx_cnt++; |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 30 | } |
| 31 | } |
| 32 | } |
| 33 | EXPORT_SYMBOL(rtw_rx_stats); |
| 34 | |
| 35 | struct rtw_rx_addr_match_data { |
| 36 | struct rtw_dev *rtwdev; |
| 37 | struct ieee80211_hdr *hdr; |
| 38 | struct rtw_rx_pkt_stat *pkt_stat; |
| 39 | u8 *bssid; |
| 40 | }; |
| 41 | |
Tsang-Shian Lin | 082a36d | 2019-10-22 18:04:20 +0800 | [diff] [blame] | 42 | static void rtw_rx_phy_stat(struct rtw_dev *rtwdev, |
| 43 | struct rtw_rx_pkt_stat *pkt_stat, |
| 44 | struct ieee80211_hdr *hdr) |
| 45 | { |
| 46 | struct rtw_dm_info *dm_info = &rtwdev->dm_info; |
| 47 | struct rtw_pkt_count *cur_pkt_cnt = &dm_info->cur_pkt_count; |
| 48 | u8 rate_ss, rate_ss_evm, evm_id; |
| 49 | u8 i, idx; |
| 50 | |
| 51 | dm_info->curr_rx_rate = pkt_stat->rate; |
| 52 | |
| 53 | if (ieee80211_is_beacon(hdr->frame_control)) |
| 54 | cur_pkt_cnt->num_bcn_pkt++; |
| 55 | |
| 56 | switch (pkt_stat->rate) { |
| 57 | case DESC_RATE1M...DESC_RATE11M: |
| 58 | goto pkt_num; |
| 59 | case DESC_RATE6M...DESC_RATE54M: |
| 60 | rate_ss = 0; |
| 61 | rate_ss_evm = 1; |
| 62 | evm_id = RTW_EVM_OFDM; |
| 63 | break; |
| 64 | case DESC_RATEMCS0...DESC_RATEMCS7: |
| 65 | case DESC_RATEVHT1SS_MCS0...DESC_RATEVHT1SS_MCS9: |
| 66 | rate_ss = 1; |
| 67 | rate_ss_evm = 1; |
| 68 | evm_id = RTW_EVM_1SS; |
| 69 | break; |
| 70 | case DESC_RATEMCS8...DESC_RATEMCS15: |
| 71 | case DESC_RATEVHT2SS_MCS0...DESC_RATEVHT2SS_MCS9: |
| 72 | rate_ss = 2; |
| 73 | rate_ss_evm = 2; |
| 74 | evm_id = RTW_EVM_2SS_A; |
| 75 | break; |
| 76 | default: |
| 77 | rtw_warn(rtwdev, "unknown pkt rate = %d\n", pkt_stat->rate); |
| 78 | return; |
| 79 | } |
| 80 | |
| 81 | for (i = 0; i < rate_ss_evm; i++) { |
| 82 | idx = evm_id + i; |
| 83 | ewma_evm_add(&dm_info->ewma_evm[idx], |
| 84 | dm_info->rx_evm_dbm[i]); |
| 85 | } |
| 86 | |
| 87 | for (i = 0; i < rtwdev->hal.rf_path_num; i++) { |
| 88 | idx = RTW_SNR_OFDM_A + 4 * rate_ss + i; |
| 89 | ewma_snr_add(&dm_info->ewma_snr[idx], |
| 90 | dm_info->rx_snr[i]); |
| 91 | } |
| 92 | pkt_num: |
| 93 | cur_pkt_cnt->num_qry_pkt[pkt_stat->rate]++; |
| 94 | } |
| 95 | |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 96 | static void rtw_rx_addr_match_iter(void *data, u8 *mac, |
| 97 | struct ieee80211_vif *vif) |
| 98 | { |
| 99 | struct rtw_rx_addr_match_data *iter_data = data; |
| 100 | struct ieee80211_sta *sta; |
| 101 | struct ieee80211_hdr *hdr = iter_data->hdr; |
| 102 | struct rtw_dev *rtwdev = iter_data->rtwdev; |
| 103 | struct rtw_sta_info *si; |
| 104 | struct rtw_rx_pkt_stat *pkt_stat = iter_data->pkt_stat; |
| 105 | u8 *bssid = iter_data->bssid; |
| 106 | |
Tsang-Shian Lin | 082a36d | 2019-10-22 18:04:20 +0800 | [diff] [blame] | 107 | if (!ether_addr_equal(vif->bss_conf.bssid, bssid)) |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 108 | return; |
| 109 | |
Tsang-Shian Lin | 082a36d | 2019-10-22 18:04:20 +0800 | [diff] [blame] | 110 | if (!(ether_addr_equal(vif->addr, hdr->addr1) || |
| 111 | ieee80211_is_beacon(hdr->frame_control))) |
| 112 | return; |
| 113 | |
| 114 | rtw_rx_phy_stat(rtwdev, pkt_stat, hdr); |
| 115 | sta = ieee80211_find_sta_by_ifaddr(rtwdev->hw, hdr->addr2, |
| 116 | vif->addr); |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 117 | if (!sta) |
| 118 | return; |
| 119 | |
| 120 | si = (struct rtw_sta_info *)sta->drv_priv; |
| 121 | ewma_rssi_add(&si->avg_rssi, pkt_stat->rssi); |
| 122 | } |
| 123 | |
| 124 | static void rtw_rx_addr_match(struct rtw_dev *rtwdev, |
| 125 | struct rtw_rx_pkt_stat *pkt_stat, |
| 126 | struct ieee80211_hdr *hdr) |
| 127 | { |
| 128 | struct rtw_rx_addr_match_data data = {}; |
| 129 | |
| 130 | if (pkt_stat->crc_err || pkt_stat->icv_err || !pkt_stat->phy_status || |
| 131 | ieee80211_is_ctl(hdr->frame_control)) |
| 132 | return; |
| 133 | |
| 134 | data.rtwdev = rtwdev; |
| 135 | data.hdr = hdr; |
| 136 | data.pkt_stat = pkt_stat; |
| 137 | data.bssid = get_hdr_bssid(hdr); |
| 138 | |
| 139 | rtw_iterate_vifs_atomic(rtwdev, rtw_rx_addr_match_iter, &data); |
| 140 | } |
| 141 | |
Po-Hao Huang | 10d162b | 2021-12-21 16:50:10 +0800 | [diff] [blame] | 142 | static void rtw_set_rx_freq_by_pktstat(struct rtw_rx_pkt_stat *pkt_stat, |
| 143 | struct ieee80211_rx_status *rx_status) |
| 144 | { |
| 145 | rx_status->freq = pkt_stat->freq; |
| 146 | rx_status->band = pkt_stat->band; |
| 147 | } |
| 148 | |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 149 | void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev, |
| 150 | struct rtw_rx_pkt_stat *pkt_stat, |
| 151 | struct ieee80211_hdr *hdr, |
| 152 | struct ieee80211_rx_status *rx_status, |
| 153 | u8 *phy_status) |
| 154 | { |
| 155 | struct ieee80211_hw *hw = rtwdev->hw; |
Yan-Hsuan Chuang | 98ab76e | 2019-09-12 14:39:15 +0800 | [diff] [blame] | 156 | u8 path; |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 157 | |
| 158 | memset(rx_status, 0, sizeof(*rx_status)); |
| 159 | rx_status->freq = hw->conf.chandef.chan->center_freq; |
| 160 | rx_status->band = hw->conf.chandef.chan->band; |
Po-Hao Huang | 6723c0c | 2022-04-07 17:58:54 +0800 | [diff] [blame] | 161 | if (rtw_fw_feature_check(&rtwdev->fw, FW_FEATURE_SCAN_OFFLOAD) && |
| 162 | test_bit(RTW_FLAG_SCANNING, rtwdev->flags)) |
Po-Hao Huang | 10d162b | 2021-12-21 16:50:10 +0800 | [diff] [blame] | 163 | rtw_set_rx_freq_by_pktstat(pkt_stat, rx_status); |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 164 | if (pkt_stat->crc_err) |
| 165 | rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; |
| 166 | if (pkt_stat->decrypted) |
| 167 | rx_status->flag |= RX_FLAG_DECRYPTED; |
| 168 | |
| 169 | if (pkt_stat->rate >= DESC_RATEVHT1SS_MCS0) |
| 170 | rx_status->encoding = RX_ENC_VHT; |
| 171 | else if (pkt_stat->rate >= DESC_RATEMCS0) |
| 172 | rx_status->encoding = RX_ENC_HT; |
| 173 | |
Yan-Hsuan Chuang | ff0dfe5 | 2019-10-25 17:33:43 +0800 | [diff] [blame] | 174 | if (rx_status->band == NL80211_BAND_5GHZ && |
| 175 | pkt_stat->rate >= DESC_RATE6M && |
| 176 | pkt_stat->rate <= DESC_RATE54M) { |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 177 | rx_status->rate_idx = pkt_stat->rate - DESC_RATE6M; |
| 178 | } else if (rx_status->band == NL80211_BAND_2GHZ && |
| 179 | pkt_stat->rate >= DESC_RATE1M && |
| 180 | pkt_stat->rate <= DESC_RATE54M) { |
| 181 | rx_status->rate_idx = pkt_stat->rate - DESC_RATE1M; |
Yan-Hsuan Chuang | ff0dfe5 | 2019-10-25 17:33:43 +0800 | [diff] [blame] | 182 | } else if (pkt_stat->rate >= DESC_RATEMCS0) { |
| 183 | rtw_desc_to_mcsrate(pkt_stat->rate, &rx_status->rate_idx, |
| 184 | &rx_status->nss); |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | rx_status->flag |= RX_FLAG_MACTIME_START; |
| 188 | rx_status->mactime = pkt_stat->tsf_low; |
| 189 | |
| 190 | if (pkt_stat->bw == RTW_CHANNEL_WIDTH_80) |
| 191 | rx_status->bw = RATE_INFO_BW_80; |
| 192 | else if (pkt_stat->bw == RTW_CHANNEL_WIDTH_40) |
| 193 | rx_status->bw = RATE_INFO_BW_40; |
| 194 | else |
| 195 | rx_status->bw = RATE_INFO_BW_20; |
| 196 | |
| 197 | rx_status->signal = pkt_stat->signal_power; |
Yan-Hsuan Chuang | 98ab76e | 2019-09-12 14:39:15 +0800 | [diff] [blame] | 198 | for (path = 0; path < rtwdev->hal.rf_path_num; path++) { |
| 199 | rx_status->chains |= BIT(path); |
| 200 | rx_status->chain_signal[path] = pkt_stat->rx_power[path]; |
| 201 | } |
Yan-Hsuan Chuang | e303748 | 2019-04-26 15:17:37 +0300 | [diff] [blame] | 202 | |
| 203 | rtw_rx_addr_match(rtwdev, pkt_stat, hdr); |
| 204 | } |
Zong-Zhe Yang | 449be86 | 2020-05-15 13:23:21 +0800 | [diff] [blame] | 205 | EXPORT_SYMBOL(rtw_rx_fill_rx_status); |