// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
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/* Copyright(c) 2018-2019 Realtek Corporation
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*/
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#include "main.h"
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#include "rx.h"
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#include "ps.h"
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#include "debug.h"
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void rtw_rx_stats(struct rtw_dev *rtwdev, struct ieee80211_vif *vif,
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struct sk_buff *skb)
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{
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struct ieee80211_hdr *hdr;
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struct rtw_vif *rtwvif;
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hdr = (struct ieee80211_hdr *)skb->data;
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if (!ieee80211_is_data(hdr->frame_control))
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return;
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if (!is_broadcast_ether_addr(hdr->addr1) &&
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!is_multicast_ether_addr(hdr->addr1)) {
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rtwdev->stats.rx_unicast += skb->len;
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rtwdev->stats.rx_cnt++;
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if (vif) {
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rtwvif = (struct rtw_vif *)vif->drv_priv;
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rtwvif->stats.rx_unicast += skb->len;
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rtwvif->stats.rx_cnt++;
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}
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}
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}
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EXPORT_SYMBOL(rtw_rx_stats);
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struct rtw_rx_addr_match_data {
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struct rtw_dev *rtwdev;
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struct ieee80211_hdr *hdr;
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struct rtw_rx_pkt_stat *pkt_stat;
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u8 *bssid;
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};
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static void rtw_rx_phy_stat(struct rtw_dev *rtwdev,
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struct rtw_rx_pkt_stat *pkt_stat,
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struct ieee80211_hdr *hdr)
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{
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struct rtw_dm_info *dm_info = &rtwdev->dm_info;
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struct rtw_pkt_count *cur_pkt_cnt = &dm_info->cur_pkt_count;
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u8 rate_ss, rate_ss_evm, evm_id;
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u8 i, idx;
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dm_info->curr_rx_rate = pkt_stat->rate;
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if (ieee80211_is_beacon(hdr->frame_control))
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cur_pkt_cnt->num_bcn_pkt++;
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switch (pkt_stat->rate) {
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case DESC_RATE1M...DESC_RATE11M:
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goto pkt_num;
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case DESC_RATE6M...DESC_RATE54M:
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rate_ss = 0;
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rate_ss_evm = 1;
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evm_id = RTW_EVM_OFDM;
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break;
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case DESC_RATEMCS0...DESC_RATEMCS7:
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case DESC_RATEVHT1SS_MCS0...DESC_RATEVHT1SS_MCS9:
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rate_ss = 1;
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rate_ss_evm = 1;
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evm_id = RTW_EVM_1SS;
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break;
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case DESC_RATEMCS8...DESC_RATEMCS15:
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case DESC_RATEVHT2SS_MCS0...DESC_RATEVHT2SS_MCS9:
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rate_ss = 2;
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rate_ss_evm = 2;
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evm_id = RTW_EVM_2SS_A;
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break;
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default:
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rtw_warn(rtwdev, "unknown pkt rate = %d\n", pkt_stat->rate);
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return;
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}
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for (i = 0; i < rate_ss_evm; i++) {
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idx = evm_id + i;
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ewma_evm_add(&dm_info->ewma_evm[idx],
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dm_info->rx_evm_dbm[i]);
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}
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for (i = 0; i < rtwdev->hal.rf_path_num; i++) {
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idx = RTW_SNR_OFDM_A + 4 * rate_ss + i;
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ewma_snr_add(&dm_info->ewma_snr[idx],
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dm_info->rx_snr[i]);
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}
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pkt_num:
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cur_pkt_cnt->num_qry_pkt[pkt_stat->rate]++;
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}
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static void rtw_rx_addr_match_iter(void *data, u8 *mac,
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struct ieee80211_vif *vif)
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{
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struct rtw_rx_addr_match_data *iter_data = data;
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struct ieee80211_sta *sta;
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struct ieee80211_hdr *hdr = iter_data->hdr;
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struct rtw_dev *rtwdev = iter_data->rtwdev;
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struct rtw_sta_info *si;
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struct rtw_rx_pkt_stat *pkt_stat = iter_data->pkt_stat;
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u8 *bssid = iter_data->bssid;
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if (!ether_addr_equal(vif->bss_conf.bssid, bssid))
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return;
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if (!(ether_addr_equal(vif->addr, hdr->addr1) ||
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ieee80211_is_beacon(hdr->frame_control)))
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return;
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rtw_rx_phy_stat(rtwdev, pkt_stat, hdr);
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sta = ieee80211_find_sta_by_ifaddr(rtwdev->hw, hdr->addr2,
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vif->addr);
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if (!sta)
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return;
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si = (struct rtw_sta_info *)sta->drv_priv;
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ewma_rssi_add(&si->avg_rssi, pkt_stat->rssi);
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}
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static void rtw_rx_addr_match(struct rtw_dev *rtwdev,
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struct rtw_rx_pkt_stat *pkt_stat,
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struct ieee80211_hdr *hdr)
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{
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struct rtw_rx_addr_match_data data = {};
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if (pkt_stat->crc_err || pkt_stat->icv_err || !pkt_stat->phy_status ||
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ieee80211_is_ctl(hdr->frame_control))
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return;
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data.rtwdev = rtwdev;
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data.hdr = hdr;
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data.pkt_stat = pkt_stat;
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data.bssid = get_hdr_bssid(hdr);
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rtw_iterate_vifs_atomic(rtwdev, rtw_rx_addr_match_iter, &data);
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}
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void rtw_rx_fill_rx_status(struct rtw_dev *rtwdev,
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struct rtw_rx_pkt_stat *pkt_stat,
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struct ieee80211_hdr *hdr,
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struct ieee80211_rx_status *rx_status,
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u8 *phy_status)
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{
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struct ieee80211_hw *hw = rtwdev->hw;
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u8 path;
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memset(rx_status, 0, sizeof(*rx_status));
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rx_status->freq = hw->conf.chandef.chan->center_freq;
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rx_status->band = hw->conf.chandef.chan->band;
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if (pkt_stat->crc_err)
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rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
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if (pkt_stat->decrypted)
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rx_status->flag |= RX_FLAG_DECRYPTED;
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if (pkt_stat->rate >= DESC_RATEVHT1SS_MCS0)
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rx_status->encoding = RX_ENC_VHT;
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else if (pkt_stat->rate >= DESC_RATEMCS0)
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rx_status->encoding = RX_ENC_HT;
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if (rx_status->band == NL80211_BAND_5GHZ &&
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pkt_stat->rate >= DESC_RATE6M &&
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pkt_stat->rate <= DESC_RATE54M) {
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rx_status->rate_idx = pkt_stat->rate - DESC_RATE6M;
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} else if (rx_status->band == NL80211_BAND_2GHZ &&
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pkt_stat->rate >= DESC_RATE1M &&
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pkt_stat->rate <= DESC_RATE54M) {
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rx_status->rate_idx = pkt_stat->rate - DESC_RATE1M;
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} else if (pkt_stat->rate >= DESC_RATEMCS0) {
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rtw_desc_to_mcsrate(pkt_stat->rate, &rx_status->rate_idx,
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&rx_status->nss);
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}
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rx_status->flag |= RX_FLAG_MACTIME_START;
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rx_status->mactime = pkt_stat->tsf_low;
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if (pkt_stat->bw == RTW_CHANNEL_WIDTH_80)
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rx_status->bw = RATE_INFO_BW_80;
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else if (pkt_stat->bw == RTW_CHANNEL_WIDTH_40)
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rx_status->bw = RATE_INFO_BW_40;
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else
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rx_status->bw = RATE_INFO_BW_20;
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rx_status->signal = pkt_stat->signal_power;
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for (path = 0; path < rtwdev->hal.rf_path_num; path++) {
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rx_status->chains |= BIT(path);
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rx_status->chain_signal[path] = pkt_stat->rx_power[path];
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}
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rtw_rx_addr_match(rtwdev, pkt_stat, hdr);
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}
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EXPORT_SYMBOL(rtw_rx_fill_rx_status);
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