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e3037485 YHC |
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" | |
082a36dc | 8 | #include "debug.h" |
e3037485 YHC |
9 | |
10 | void 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++; | |
e3037485 YHC |
29 | } |
30 | } | |
31 | } | |
32 | EXPORT_SYMBOL(rtw_rx_stats); | |
33 | ||
34 | struct 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 | ||
082a36dc TSL |
41 | static 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 | } | |
91 | pkt_num: | |
92 | cur_pkt_cnt->num_qry_pkt[pkt_stat->rate]++; | |
93 | } | |
94 | ||
e3037485 YHC |
95 | static 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 | ||
082a36dc TSL |
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))) | |
e3037485 YHC |
111 | return; |
112 | ||
082a36dc TSL |
113 | rtw_rx_phy_stat(rtwdev, pkt_stat, hdr); |
114 | sta = ieee80211_find_sta_by_ifaddr(rtwdev->hw, hdr->addr2, | |
115 | vif->addr); | |
e3037485 YHC |
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 | ||
123 | static 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 | ||
141 | void 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; | |
98ab76ef | 148 | u8 path; |
e3037485 YHC |
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 | ||
ff0dfe5b YHC |
163 | if (rx_status->band == NL80211_BAND_5GHZ && |
164 | pkt_stat->rate >= DESC_RATE6M && | |
165 | pkt_stat->rate <= DESC_RATE54M) { | |
e3037485 YHC |
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; | |
ff0dfe5b YHC |
171 | } else if (pkt_stat->rate >= DESC_RATEMCS0) { |
172 | rtw_desc_to_mcsrate(pkt_stat->rate, &rx_status->rate_idx, | |
173 | &rx_status->nss); | |
e3037485 YHC |
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; | |
98ab76ef YHC |
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 | } | |
e3037485 YHC |
191 | |
192 | rtw_rx_addr_match(rtwdev, pkt_stat, hdr); | |
193 | } |