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