developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2020 MediaTek Inc. */ |
| 3 | |
| 4 | #include <linux/devcoredump.h> |
| 5 | #include <linux/etherdevice.h> |
| 6 | #include <linux/timekeeping.h> |
| 7 | #include "mt7921.h" |
| 8 | #include "../dma.h" |
| 9 | #include "mac.h" |
| 10 | #include "mcu.h" |
| 11 | |
| 12 | #define HE_BITS(f) cpu_to_le16(IEEE80211_RADIOTAP_HE_##f) |
| 13 | #define HE_PREP(f, m, v) le16_encode_bits(le32_get_bits(v, MT_CRXV_HE_##m),\ |
| 14 | IEEE80211_RADIOTAP_HE_##f) |
| 15 | |
| 16 | static struct mt76_wcid *mt7921_rx_get_wcid(struct mt7921_dev *dev, |
| 17 | u16 idx, bool unicast) |
| 18 | { |
| 19 | struct mt7921_sta *sta; |
| 20 | struct mt76_wcid *wcid; |
| 21 | |
| 22 | if (idx >= ARRAY_SIZE(dev->mt76.wcid)) |
| 23 | return NULL; |
| 24 | |
| 25 | wcid = rcu_dereference(dev->mt76.wcid[idx]); |
| 26 | if (unicast || !wcid) |
| 27 | return wcid; |
| 28 | |
| 29 | if (!wcid->sta) |
| 30 | return NULL; |
| 31 | |
| 32 | sta = container_of(wcid, struct mt7921_sta, wcid); |
| 33 | if (!sta->vif) |
| 34 | return NULL; |
| 35 | |
| 36 | return &sta->vif->sta.wcid; |
| 37 | } |
| 38 | |
| 39 | void mt7921_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps) |
| 40 | { |
| 41 | } |
| 42 | EXPORT_SYMBOL_GPL(mt7921_sta_ps); |
| 43 | |
| 44 | bool mt7921_mac_wtbl_update(struct mt7921_dev *dev, int idx, u32 mask) |
| 45 | { |
| 46 | mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX, |
| 47 | FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask); |
| 48 | |
| 49 | return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, |
| 50 | 0, 5000); |
| 51 | } |
| 52 | |
| 53 | void mt7921_mac_sta_poll(struct mt7921_dev *dev) |
| 54 | { |
| 55 | static const u8 ac_to_tid[] = { |
| 56 | [IEEE80211_AC_BE] = 0, |
| 57 | [IEEE80211_AC_BK] = 1, |
| 58 | [IEEE80211_AC_VI] = 4, |
| 59 | [IEEE80211_AC_VO] = 6 |
| 60 | }; |
| 61 | struct ieee80211_sta *sta; |
| 62 | struct mt7921_sta *msta; |
| 63 | u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; |
| 64 | LIST_HEAD(sta_poll_list); |
| 65 | struct rate_info *rate; |
| 66 | int i; |
| 67 | |
| 68 | spin_lock_bh(&dev->sta_poll_lock); |
| 69 | list_splice_init(&dev->sta_poll_list, &sta_poll_list); |
| 70 | spin_unlock_bh(&dev->sta_poll_lock); |
| 71 | |
| 72 | while (true) { |
| 73 | bool clear = false; |
| 74 | u32 addr, val; |
| 75 | u16 idx; |
| 76 | u8 bw; |
| 77 | |
| 78 | spin_lock_bh(&dev->sta_poll_lock); |
| 79 | if (list_empty(&sta_poll_list)) { |
| 80 | spin_unlock_bh(&dev->sta_poll_lock); |
| 81 | break; |
| 82 | } |
| 83 | msta = list_first_entry(&sta_poll_list, |
| 84 | struct mt7921_sta, poll_list); |
| 85 | list_del_init(&msta->poll_list); |
| 86 | spin_unlock_bh(&dev->sta_poll_lock); |
| 87 | |
| 88 | idx = msta->wcid.idx; |
| 89 | addr = mt7921_mac_wtbl_lmac_addr(idx, MT_WTBL_AC0_CTT_OFFSET); |
| 90 | |
| 91 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
| 92 | u32 tx_last = msta->airtime_ac[i]; |
| 93 | u32 rx_last = msta->airtime_ac[i + 4]; |
| 94 | |
| 95 | msta->airtime_ac[i] = mt76_rr(dev, addr); |
| 96 | msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4); |
| 97 | |
| 98 | tx_time[i] = msta->airtime_ac[i] - tx_last; |
| 99 | rx_time[i] = msta->airtime_ac[i + 4] - rx_last; |
| 100 | |
| 101 | if ((tx_last | rx_last) & BIT(30)) |
| 102 | clear = true; |
| 103 | |
| 104 | addr += 8; |
| 105 | } |
| 106 | |
| 107 | if (clear) { |
| 108 | mt7921_mac_wtbl_update(dev, idx, |
| 109 | MT_WTBL_UPDATE_ADM_COUNT_CLEAR); |
| 110 | memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac)); |
| 111 | } |
| 112 | |
| 113 | if (!msta->wcid.sta) |
| 114 | continue; |
| 115 | |
| 116 | sta = container_of((void *)msta, struct ieee80211_sta, |
| 117 | drv_priv); |
| 118 | for (i = 0; i < IEEE80211_NUM_ACS; i++) { |
| 119 | u8 q = mt76_connac_lmac_mapping(i); |
| 120 | u32 tx_cur = tx_time[q]; |
| 121 | u32 rx_cur = rx_time[q]; |
| 122 | u8 tid = ac_to_tid[i]; |
| 123 | |
| 124 | if (!tx_cur && !rx_cur) |
| 125 | continue; |
| 126 | |
| 127 | ieee80211_sta_register_airtime(sta, tid, tx_cur, |
| 128 | rx_cur); |
| 129 | } |
| 130 | |
| 131 | /* We don't support reading GI info from txs packets. |
| 132 | * For accurate tx status reporting and AQL improvement, |
| 133 | * we need to make sure that flags match so polling GI |
| 134 | * from per-sta counters directly. |
| 135 | */ |
| 136 | rate = &msta->wcid.rate; |
| 137 | addr = mt7921_mac_wtbl_lmac_addr(idx, |
| 138 | MT_WTBL_TXRX_CAP_RATE_OFFSET); |
| 139 | val = mt76_rr(dev, addr); |
| 140 | |
| 141 | switch (rate->bw) { |
| 142 | case RATE_INFO_BW_160: |
| 143 | bw = IEEE80211_STA_RX_BW_160; |
| 144 | break; |
| 145 | case RATE_INFO_BW_80: |
| 146 | bw = IEEE80211_STA_RX_BW_80; |
| 147 | break; |
| 148 | case RATE_INFO_BW_40: |
| 149 | bw = IEEE80211_STA_RX_BW_40; |
| 150 | break; |
| 151 | default: |
| 152 | bw = IEEE80211_STA_RX_BW_20; |
| 153 | break; |
| 154 | } |
| 155 | |
| 156 | if (rate->flags & RATE_INFO_FLAGS_HE_MCS) { |
| 157 | u8 offs = MT_WTBL_TXRX_RATE_G2_HE + 2 * bw; |
| 158 | |
| 159 | rate->he_gi = (val & (0x3 << offs)) >> offs; |
| 160 | } else if (rate->flags & |
| 161 | (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) { |
| 162 | if (val & BIT(MT_WTBL_TXRX_RATE_G2 + bw)) |
| 163 | rate->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| 164 | else |
| 165 | rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI; |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | EXPORT_SYMBOL_GPL(mt7921_mac_sta_poll); |
| 170 | |
| 171 | static void |
| 172 | mt7921_mac_decode_he_radiotap_ru(struct mt76_rx_status *status, |
| 173 | struct ieee80211_radiotap_he *he, |
| 174 | __le32 *rxv) |
| 175 | { |
| 176 | u32 ru_h, ru_l; |
| 177 | u8 ru, offs = 0; |
| 178 | |
| 179 | ru_l = le32_get_bits(rxv[0], MT_PRXV_HE_RU_ALLOC_L); |
| 180 | ru_h = le32_get_bits(rxv[1], MT_PRXV_HE_RU_ALLOC_H); |
| 181 | ru = (u8)(ru_l | ru_h << 4); |
| 182 | |
| 183 | status->bw = RATE_INFO_BW_HE_RU; |
| 184 | |
| 185 | switch (ru) { |
| 186 | case 0 ... 36: |
| 187 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26; |
| 188 | offs = ru; |
| 189 | break; |
| 190 | case 37 ... 52: |
| 191 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52; |
| 192 | offs = ru - 37; |
| 193 | break; |
| 194 | case 53 ... 60: |
| 195 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; |
| 196 | offs = ru - 53; |
| 197 | break; |
| 198 | case 61 ... 64: |
| 199 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242; |
| 200 | offs = ru - 61; |
| 201 | break; |
| 202 | case 65 ... 66: |
| 203 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484; |
| 204 | offs = ru - 65; |
| 205 | break; |
| 206 | case 67: |
| 207 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996; |
| 208 | break; |
| 209 | case 68: |
| 210 | status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996; |
| 211 | break; |
| 212 | } |
| 213 | |
| 214 | he->data1 |= HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); |
| 215 | he->data2 |= HE_BITS(DATA2_RU_OFFSET_KNOWN) | |
| 216 | le16_encode_bits(offs, |
| 217 | IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET); |
| 218 | } |
| 219 | |
| 220 | static void |
| 221 | mt7921_mac_decode_he_mu_radiotap(struct sk_buff *skb, __le32 *rxv) |
| 222 | { |
| 223 | struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| 224 | static const struct ieee80211_radiotap_he_mu mu_known = { |
| 225 | .flags1 = HE_BITS(MU_FLAGS1_SIG_B_MCS_KNOWN) | |
| 226 | HE_BITS(MU_FLAGS1_SIG_B_DCM_KNOWN) | |
| 227 | HE_BITS(MU_FLAGS1_CH1_RU_KNOWN) | |
| 228 | HE_BITS(MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN) | |
| 229 | HE_BITS(MU_FLAGS1_SIG_B_COMP_KNOWN), |
| 230 | .flags2 = HE_BITS(MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN) | |
| 231 | HE_BITS(MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN), |
| 232 | }; |
| 233 | struct ieee80211_radiotap_he_mu *he_mu; |
| 234 | |
| 235 | status->flag |= RX_FLAG_RADIOTAP_HE_MU; |
| 236 | |
| 237 | he_mu = skb_push(skb, sizeof(mu_known)); |
| 238 | memcpy(he_mu, &mu_known, sizeof(mu_known)); |
| 239 | |
| 240 | #define MU_PREP(f, v) le16_encode_bits(v, IEEE80211_RADIOTAP_HE_MU_##f) |
| 241 | |
| 242 | he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_MCS, status->rate_idx); |
| 243 | if (status->he_dcm) |
| 244 | he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_DCM, status->he_dcm); |
| 245 | |
| 246 | he_mu->flags2 |= MU_PREP(FLAGS2_BW_FROM_SIG_A_BW, status->bw) | |
| 247 | MU_PREP(FLAGS2_SIG_B_SYMS_USERS, |
| 248 | le32_get_bits(rxv[2], MT_CRXV_HE_NUM_USER)); |
| 249 | |
| 250 | he_mu->ru_ch1[0] = le32_get_bits(rxv[3], MT_CRXV_HE_RU0); |
| 251 | |
| 252 | if (status->bw >= RATE_INFO_BW_40) { |
| 253 | he_mu->flags1 |= HE_BITS(MU_FLAGS1_CH2_RU_KNOWN); |
| 254 | he_mu->ru_ch2[0] = |
| 255 | le32_get_bits(rxv[3], MT_CRXV_HE_RU1); |
| 256 | } |
| 257 | |
| 258 | if (status->bw >= RATE_INFO_BW_80) { |
| 259 | he_mu->ru_ch1[1] = |
| 260 | le32_get_bits(rxv[3], MT_CRXV_HE_RU2); |
| 261 | he_mu->ru_ch2[1] = |
| 262 | le32_get_bits(rxv[3], MT_CRXV_HE_RU3); |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | static void |
| 267 | mt7921_mac_decode_he_radiotap(struct sk_buff *skb, __le32 *rxv, u32 mode) |
| 268 | { |
| 269 | struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| 270 | static const struct ieee80211_radiotap_he known = { |
| 271 | .data1 = HE_BITS(DATA1_DATA_MCS_KNOWN) | |
| 272 | HE_BITS(DATA1_DATA_DCM_KNOWN) | |
| 273 | HE_BITS(DATA1_STBC_KNOWN) | |
| 274 | HE_BITS(DATA1_CODING_KNOWN) | |
| 275 | HE_BITS(DATA1_LDPC_XSYMSEG_KNOWN) | |
| 276 | HE_BITS(DATA1_DOPPLER_KNOWN) | |
| 277 | HE_BITS(DATA1_SPTL_REUSE_KNOWN) | |
| 278 | HE_BITS(DATA1_BSS_COLOR_KNOWN), |
| 279 | .data2 = HE_BITS(DATA2_GI_KNOWN) | |
| 280 | HE_BITS(DATA2_TXBF_KNOWN) | |
| 281 | HE_BITS(DATA2_PE_DISAMBIG_KNOWN) | |
| 282 | HE_BITS(DATA2_TXOP_KNOWN), |
| 283 | }; |
| 284 | struct ieee80211_radiotap_he *he = NULL; |
| 285 | u32 ltf_size = le32_get_bits(rxv[2], MT_CRXV_HE_LTF_SIZE) + 1; |
| 286 | |
| 287 | status->flag |= RX_FLAG_RADIOTAP_HE; |
| 288 | |
| 289 | he = skb_push(skb, sizeof(known)); |
| 290 | memcpy(he, &known, sizeof(known)); |
| 291 | |
| 292 | he->data3 = HE_PREP(DATA3_BSS_COLOR, BSS_COLOR, rxv[14]) | |
| 293 | HE_PREP(DATA3_LDPC_XSYMSEG, LDPC_EXT_SYM, rxv[2]); |
| 294 | he->data4 = HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]); |
| 295 | he->data5 = HE_PREP(DATA5_PE_DISAMBIG, PE_DISAMBIG, rxv[2]) | |
| 296 | le16_encode_bits(ltf_size, |
| 297 | IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE); |
| 298 | if (le32_to_cpu(rxv[0]) & MT_PRXV_TXBF) |
| 299 | he->data5 |= HE_BITS(DATA5_TXBF); |
| 300 | he->data6 = HE_PREP(DATA6_TXOP, TXOP_DUR, rxv[14]) | |
| 301 | HE_PREP(DATA6_DOPPLER, DOPPLER, rxv[14]); |
| 302 | |
| 303 | switch (mode) { |
| 304 | case MT_PHY_TYPE_HE_SU: |
| 305 | he->data1 |= HE_BITS(DATA1_FORMAT_SU) | |
| 306 | HE_BITS(DATA1_UL_DL_KNOWN) | |
| 307 | HE_BITS(DATA1_BEAM_CHANGE_KNOWN) | |
| 308 | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); |
| 309 | |
| 310 | he->data3 |= HE_PREP(DATA3_BEAM_CHANGE, BEAM_CHNG, rxv[14]) | |
| 311 | HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); |
| 312 | break; |
| 313 | case MT_PHY_TYPE_HE_EXT_SU: |
| 314 | he->data1 |= HE_BITS(DATA1_FORMAT_EXT_SU) | |
| 315 | HE_BITS(DATA1_UL_DL_KNOWN) | |
| 316 | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); |
| 317 | |
| 318 | he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); |
| 319 | break; |
| 320 | case MT_PHY_TYPE_HE_MU: |
| 321 | he->data1 |= HE_BITS(DATA1_FORMAT_MU) | |
| 322 | HE_BITS(DATA1_UL_DL_KNOWN); |
| 323 | |
| 324 | he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); |
| 325 | he->data4 |= HE_PREP(DATA4_MU_STA_ID, MU_AID, rxv[7]); |
| 326 | |
| 327 | mt7921_mac_decode_he_radiotap_ru(status, he, rxv); |
| 328 | mt7921_mac_decode_he_mu_radiotap(skb, rxv); |
| 329 | break; |
| 330 | case MT_PHY_TYPE_HE_TB: |
| 331 | he->data1 |= HE_BITS(DATA1_FORMAT_TRIG) | |
| 332 | HE_BITS(DATA1_SPTL_REUSE2_KNOWN) | |
| 333 | HE_BITS(DATA1_SPTL_REUSE3_KNOWN) | |
| 334 | HE_BITS(DATA1_SPTL_REUSE4_KNOWN); |
| 335 | |
| 336 | he->data4 |= HE_PREP(DATA4_TB_SPTL_REUSE1, SR_MASK, rxv[11]) | |
| 337 | HE_PREP(DATA4_TB_SPTL_REUSE2, SR1_MASK, rxv[11]) | |
| 338 | HE_PREP(DATA4_TB_SPTL_REUSE3, SR2_MASK, rxv[11]) | |
| 339 | HE_PREP(DATA4_TB_SPTL_REUSE4, SR3_MASK, rxv[11]); |
| 340 | |
| 341 | mt7921_mac_decode_he_radiotap_ru(status, he, rxv); |
| 342 | break; |
| 343 | default: |
| 344 | break; |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | mt7921_get_status_freq_info(struct mt7921_dev *dev, struct mt76_phy *mphy, |
| 350 | struct mt76_rx_status *status, u8 chfreq) |
| 351 | { |
| 352 | if (!test_bit(MT76_HW_SCANNING, &mphy->state) && |
| 353 | !test_bit(MT76_HW_SCHED_SCANNING, &mphy->state) && |
| 354 | !test_bit(MT76_STATE_ROC, &mphy->state)) { |
| 355 | status->freq = mphy->chandef.chan->center_freq; |
| 356 | status->band = mphy->chandef.chan->band; |
| 357 | return; |
| 358 | } |
| 359 | |
| 360 | if (chfreq > 180) { |
| 361 | status->band = NL80211_BAND_6GHZ; |
| 362 | chfreq = (chfreq - 181) * 4 + 1; |
| 363 | } else if (chfreq > 14) { |
| 364 | status->band = NL80211_BAND_5GHZ; |
| 365 | } else { |
| 366 | status->band = NL80211_BAND_2GHZ; |
| 367 | } |
| 368 | status->freq = ieee80211_channel_to_frequency(chfreq, status->band); |
| 369 | } |
| 370 | |
| 371 | static void |
| 372 | mt7921_mac_rssi_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) |
| 373 | { |
| 374 | struct sk_buff *skb = priv; |
| 375 | struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| 376 | struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; |
| 377 | struct ieee80211_hdr *hdr = mt76_skb_get_hdr(skb); |
| 378 | |
| 379 | if (status->signal > 0) |
| 380 | return; |
| 381 | |
| 382 | if (!ether_addr_equal(vif->addr, hdr->addr1)) |
| 383 | return; |
| 384 | |
| 385 | ewma_rssi_add(&mvif->rssi, -status->signal); |
| 386 | } |
| 387 | |
| 388 | static void |
| 389 | mt7921_mac_assoc_rssi(struct mt7921_dev *dev, struct sk_buff *skb) |
| 390 | { |
| 391 | struct ieee80211_hdr *hdr = mt76_skb_get_hdr(skb); |
| 392 | |
| 393 | if (!ieee80211_is_assoc_resp(hdr->frame_control) && |
| 394 | !ieee80211_is_auth(hdr->frame_control)) |
| 395 | return; |
| 396 | |
| 397 | ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev), |
| 398 | IEEE80211_IFACE_ITER_RESUME_ALL, |
| 399 | mt7921_mac_rssi_iter, skb); |
| 400 | } |
| 401 | |
| 402 | /* The HW does not translate the mac header to 802.3 for mesh point */ |
| 403 | static int mt7921_reverse_frag0_hdr_trans(struct sk_buff *skb, u16 hdr_gap) |
| 404 | { |
| 405 | struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| 406 | struct ethhdr *eth_hdr = (struct ethhdr *)(skb->data + hdr_gap); |
| 407 | struct mt7921_sta *msta = (struct mt7921_sta *)status->wcid; |
| 408 | __le32 *rxd = (__le32 *)skb->data; |
| 409 | struct ieee80211_sta *sta; |
| 410 | struct ieee80211_vif *vif; |
| 411 | struct ieee80211_hdr hdr; |
| 412 | u16 frame_control; |
| 413 | |
| 414 | if (le32_get_bits(rxd[3], MT_RXD3_NORMAL_ADDR_TYPE) != |
| 415 | MT_RXD3_NORMAL_U2M) |
| 416 | return -EINVAL; |
| 417 | |
| 418 | if (!(le32_to_cpu(rxd[1]) & MT_RXD1_NORMAL_GROUP_4)) |
| 419 | return -EINVAL; |
| 420 | |
| 421 | if (!msta || !msta->vif) |
| 422 | return -EINVAL; |
| 423 | |
| 424 | sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); |
| 425 | vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); |
| 426 | |
| 427 | /* store the info from RXD and ethhdr to avoid being overridden */ |
| 428 | frame_control = le32_get_bits(rxd[6], MT_RXD6_FRAME_CONTROL); |
| 429 | hdr.frame_control = cpu_to_le16(frame_control); |
| 430 | hdr.seq_ctrl = cpu_to_le16(le32_get_bits(rxd[8], MT_RXD8_SEQ_CTRL)); |
| 431 | hdr.duration_id = 0; |
| 432 | |
| 433 | ether_addr_copy(hdr.addr1, vif->addr); |
| 434 | ether_addr_copy(hdr.addr2, sta->addr); |
| 435 | switch (frame_control & (IEEE80211_FCTL_TODS | |
| 436 | IEEE80211_FCTL_FROMDS)) { |
| 437 | case 0: |
| 438 | ether_addr_copy(hdr.addr3, vif->bss_conf.bssid); |
| 439 | break; |
| 440 | case IEEE80211_FCTL_FROMDS: |
| 441 | ether_addr_copy(hdr.addr3, eth_hdr->h_source); |
| 442 | break; |
| 443 | case IEEE80211_FCTL_TODS: |
| 444 | ether_addr_copy(hdr.addr3, eth_hdr->h_dest); |
| 445 | break; |
| 446 | case IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS: |
| 447 | ether_addr_copy(hdr.addr3, eth_hdr->h_dest); |
| 448 | ether_addr_copy(hdr.addr4, eth_hdr->h_source); |
| 449 | break; |
| 450 | default: |
| 451 | break; |
| 452 | } |
| 453 | |
| 454 | skb_pull(skb, hdr_gap + sizeof(struct ethhdr) - 2); |
| 455 | if (eth_hdr->h_proto == cpu_to_be16(ETH_P_AARP) || |
| 456 | eth_hdr->h_proto == cpu_to_be16(ETH_P_IPX)) |
| 457 | ether_addr_copy(skb_push(skb, ETH_ALEN), bridge_tunnel_header); |
| 458 | else if (be16_to_cpu(eth_hdr->h_proto) >= ETH_P_802_3_MIN) |
| 459 | ether_addr_copy(skb_push(skb, ETH_ALEN), rfc1042_header); |
| 460 | else |
| 461 | skb_pull(skb, 2); |
| 462 | |
| 463 | if (ieee80211_has_order(hdr.frame_control)) |
| 464 | memcpy(skb_push(skb, IEEE80211_HT_CTL_LEN), &rxd[9], |
| 465 | IEEE80211_HT_CTL_LEN); |
| 466 | if (ieee80211_is_data_qos(hdr.frame_control)) { |
| 467 | __le16 qos_ctrl; |
| 468 | |
| 469 | qos_ctrl = cpu_to_le16(le32_get_bits(rxd[8], MT_RXD8_QOS_CTL)); |
| 470 | memcpy(skb_push(skb, IEEE80211_QOS_CTL_LEN), &qos_ctrl, |
| 471 | IEEE80211_QOS_CTL_LEN); |
| 472 | } |
| 473 | |
| 474 | if (ieee80211_has_a4(hdr.frame_control)) |
| 475 | memcpy(skb_push(skb, sizeof(hdr)), &hdr, sizeof(hdr)); |
| 476 | else |
| 477 | memcpy(skb_push(skb, sizeof(hdr) - 6), &hdr, sizeof(hdr) - 6); |
| 478 | |
| 479 | return 0; |
| 480 | } |
| 481 | |
| 482 | static int |
| 483 | mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) |
| 484 | { |
| 485 | u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; |
| 486 | struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| 487 | bool hdr_trans, unicast, insert_ccmp_hdr = false; |
| 488 | u8 chfreq, qos_ctl = 0, remove_pad, amsdu_info; |
| 489 | u16 hdr_gap; |
| 490 | __le32 *rxv = NULL, *rxd = (__le32 *)skb->data; |
| 491 | struct mt76_phy *mphy = &dev->mt76.phy; |
| 492 | struct mt7921_phy *phy = &dev->phy; |
| 493 | struct ieee80211_supported_band *sband; |
| 494 | u32 rxd0 = le32_to_cpu(rxd[0]); |
| 495 | u32 rxd1 = le32_to_cpu(rxd[1]); |
| 496 | u32 rxd2 = le32_to_cpu(rxd[2]); |
| 497 | u32 rxd3 = le32_to_cpu(rxd[3]); |
| 498 | u32 rxd4 = le32_to_cpu(rxd[4]); |
| 499 | u16 seq_ctrl = 0; |
| 500 | __le16 fc = 0; |
| 501 | u32 mode = 0; |
| 502 | int i, idx; |
| 503 | |
| 504 | memset(status, 0, sizeof(*status)); |
| 505 | |
| 506 | if (rxd1 & MT_RXD1_NORMAL_BAND_IDX) |
| 507 | return -EINVAL; |
| 508 | |
| 509 | if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) |
| 510 | return -EINVAL; |
| 511 | |
| 512 | if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR) |
| 513 | return -EINVAL; |
| 514 | |
| 515 | hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS; |
| 516 | if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM)) |
| 517 | return -EINVAL; |
| 518 | |
| 519 | /* ICV error or CCMP/BIP/WPI MIC error */ |
| 520 | if (rxd1 & MT_RXD1_NORMAL_ICV_ERR) |
| 521 | status->flag |= RX_FLAG_ONLY_MONITOR; |
| 522 | |
| 523 | chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3); |
| 524 | unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; |
| 525 | idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); |
| 526 | status->wcid = mt7921_rx_get_wcid(dev, idx, unicast); |
| 527 | |
| 528 | if (status->wcid) { |
| 529 | struct mt7921_sta *msta; |
| 530 | |
| 531 | msta = container_of(status->wcid, struct mt7921_sta, wcid); |
| 532 | spin_lock_bh(&dev->sta_poll_lock); |
| 533 | if (list_empty(&msta->poll_list)) |
| 534 | list_add_tail(&msta->poll_list, &dev->sta_poll_list); |
| 535 | spin_unlock_bh(&dev->sta_poll_lock); |
| 536 | } |
| 537 | |
| 538 | mt7921_get_status_freq_info(dev, mphy, status, chfreq); |
| 539 | |
| 540 | switch (status->band) { |
| 541 | case NL80211_BAND_5GHZ: |
| 542 | sband = &mphy->sband_5g.sband; |
| 543 | break; |
| 544 | case NL80211_BAND_6GHZ: |
| 545 | sband = &mphy->sband_6g.sband; |
| 546 | break; |
| 547 | default: |
| 548 | sband = &mphy->sband_2g.sband; |
| 549 | break; |
| 550 | } |
| 551 | |
| 552 | if (!sband->channels) |
| 553 | return -EINVAL; |
| 554 | |
| 555 | if ((rxd0 & csum_mask) == csum_mask) |
| 556 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
| 557 | |
| 558 | if (rxd1 & MT_RXD1_NORMAL_FCS_ERR) |
| 559 | status->flag |= RX_FLAG_FAILED_FCS_CRC; |
| 560 | |
| 561 | if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR) |
| 562 | status->flag |= RX_FLAG_MMIC_ERROR; |
| 563 | |
| 564 | if (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1) != 0 && |
| 565 | !(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) { |
| 566 | status->flag |= RX_FLAG_DECRYPTED; |
| 567 | status->flag |= RX_FLAG_IV_STRIPPED; |
| 568 | status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED; |
| 569 | } |
| 570 | |
| 571 | remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2); |
| 572 | |
| 573 | if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR) |
| 574 | return -EINVAL; |
| 575 | |
| 576 | rxd += 6; |
| 577 | if (rxd1 & MT_RXD1_NORMAL_GROUP_4) { |
| 578 | u32 v0 = le32_to_cpu(rxd[0]); |
| 579 | u32 v2 = le32_to_cpu(rxd[2]); |
| 580 | |
| 581 | fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0)); |
| 582 | seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2); |
| 583 | qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2); |
| 584 | |
| 585 | rxd += 4; |
| 586 | if ((u8 *)rxd - skb->data >= skb->len) |
| 587 | return -EINVAL; |
| 588 | } |
| 589 | |
| 590 | if (rxd1 & MT_RXD1_NORMAL_GROUP_1) { |
| 591 | u8 *data = (u8 *)rxd; |
| 592 | |
| 593 | if (status->flag & RX_FLAG_DECRYPTED) { |
| 594 | switch (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1)) { |
| 595 | case MT_CIPHER_AES_CCMP: |
| 596 | case MT_CIPHER_CCMP_CCX: |
| 597 | case MT_CIPHER_CCMP_256: |
| 598 | insert_ccmp_hdr = |
| 599 | FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2); |
| 600 | fallthrough; |
| 601 | case MT_CIPHER_TKIP: |
| 602 | case MT_CIPHER_TKIP_NO_MIC: |
| 603 | case MT_CIPHER_GCMP: |
| 604 | case MT_CIPHER_GCMP_256: |
| 605 | status->iv[0] = data[5]; |
| 606 | status->iv[1] = data[4]; |
| 607 | status->iv[2] = data[3]; |
| 608 | status->iv[3] = data[2]; |
| 609 | status->iv[4] = data[1]; |
| 610 | status->iv[5] = data[0]; |
| 611 | break; |
| 612 | default: |
| 613 | break; |
| 614 | } |
| 615 | } |
| 616 | rxd += 4; |
| 617 | if ((u8 *)rxd - skb->data >= skb->len) |
| 618 | return -EINVAL; |
| 619 | } |
| 620 | |
| 621 | if (rxd1 & MT_RXD1_NORMAL_GROUP_2) { |
| 622 | status->timestamp = le32_to_cpu(rxd[0]); |
| 623 | status->flag |= RX_FLAG_MACTIME_START; |
| 624 | |
| 625 | if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) { |
| 626 | status->flag |= RX_FLAG_AMPDU_DETAILS; |
| 627 | |
| 628 | /* all subframes of an A-MPDU have the same timestamp */ |
| 629 | if (phy->rx_ampdu_ts != status->timestamp) { |
| 630 | if (!++phy->ampdu_ref) |
| 631 | phy->ampdu_ref++; |
| 632 | } |
| 633 | phy->rx_ampdu_ts = status->timestamp; |
| 634 | |
| 635 | status->ampdu_ref = phy->ampdu_ref; |
| 636 | } |
| 637 | |
| 638 | rxd += 2; |
| 639 | if ((u8 *)rxd - skb->data >= skb->len) |
| 640 | return -EINVAL; |
| 641 | } |
| 642 | |
| 643 | /* RXD Group 3 - P-RXV */ |
| 644 | if (rxd1 & MT_RXD1_NORMAL_GROUP_3) { |
| 645 | u8 stbc, gi; |
| 646 | u32 v0, v1; |
| 647 | bool cck; |
| 648 | |
| 649 | rxv = rxd; |
| 650 | rxd += 2; |
| 651 | if ((u8 *)rxd - skb->data >= skb->len) |
| 652 | return -EINVAL; |
| 653 | |
| 654 | v0 = le32_to_cpu(rxv[0]); |
| 655 | v1 = le32_to_cpu(rxv[1]); |
| 656 | |
| 657 | if (v0 & MT_PRXV_HT_AD_CODE) |
| 658 | status->enc_flags |= RX_ENC_FLAG_LDPC; |
| 659 | |
| 660 | status->chains = mphy->antenna_mask; |
| 661 | status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1); |
| 662 | status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1); |
| 663 | status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1); |
| 664 | status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1); |
| 665 | status->signal = -128; |
| 666 | for (i = 0; i < hweight8(mphy->antenna_mask); i++) { |
| 667 | if (!(status->chains & BIT(i)) || |
| 668 | status->chain_signal[i] >= 0) |
| 669 | continue; |
| 670 | |
| 671 | status->signal = max(status->signal, |
| 672 | status->chain_signal[i]); |
| 673 | } |
| 674 | |
| 675 | stbc = FIELD_GET(MT_PRXV_STBC, v0); |
| 676 | gi = FIELD_GET(MT_PRXV_SGI, v0); |
| 677 | cck = false; |
| 678 | |
| 679 | idx = i = FIELD_GET(MT_PRXV_TX_RATE, v0); |
| 680 | mode = FIELD_GET(MT_PRXV_TX_MODE, v0); |
| 681 | |
| 682 | switch (mode) { |
| 683 | case MT_PHY_TYPE_CCK: |
| 684 | cck = true; |
| 685 | fallthrough; |
| 686 | case MT_PHY_TYPE_OFDM: |
| 687 | i = mt76_get_rate(&dev->mt76, sband, i, cck); |
| 688 | break; |
| 689 | case MT_PHY_TYPE_HT_GF: |
| 690 | case MT_PHY_TYPE_HT: |
| 691 | status->encoding = RX_ENC_HT; |
| 692 | if (i > 31) |
| 693 | return -EINVAL; |
| 694 | break; |
| 695 | case MT_PHY_TYPE_VHT: |
| 696 | status->nss = |
| 697 | FIELD_GET(MT_PRXV_NSTS, v0) + 1; |
| 698 | status->encoding = RX_ENC_VHT; |
| 699 | if (i > 11) |
| 700 | return -EINVAL; |
| 701 | break; |
| 702 | case MT_PHY_TYPE_HE_MU: |
| 703 | case MT_PHY_TYPE_HE_SU: |
| 704 | case MT_PHY_TYPE_HE_EXT_SU: |
| 705 | case MT_PHY_TYPE_HE_TB: |
| 706 | status->nss = |
| 707 | FIELD_GET(MT_PRXV_NSTS, v0) + 1; |
| 708 | status->encoding = RX_ENC_HE; |
| 709 | i &= GENMASK(3, 0); |
| 710 | |
| 711 | if (gi <= NL80211_RATE_INFO_HE_GI_3_2) |
| 712 | status->he_gi = gi; |
| 713 | |
| 714 | status->he_dcm = !!(idx & MT_PRXV_TX_DCM); |
| 715 | break; |
| 716 | default: |
| 717 | return -EINVAL; |
| 718 | } |
| 719 | |
| 720 | status->rate_idx = i; |
| 721 | |
| 722 | switch (FIELD_GET(MT_PRXV_FRAME_MODE, v0)) { |
| 723 | case IEEE80211_STA_RX_BW_20: |
| 724 | break; |
| 725 | case IEEE80211_STA_RX_BW_40: |
| 726 | if (mode & MT_PHY_TYPE_HE_EXT_SU && |
| 727 | (idx & MT_PRXV_TX_ER_SU_106T)) { |
| 728 | status->bw = RATE_INFO_BW_HE_RU; |
| 729 | status->he_ru = |
| 730 | NL80211_RATE_INFO_HE_RU_ALLOC_106; |
| 731 | } else { |
| 732 | status->bw = RATE_INFO_BW_40; |
| 733 | } |
| 734 | break; |
| 735 | case IEEE80211_STA_RX_BW_80: |
| 736 | status->bw = RATE_INFO_BW_80; |
| 737 | break; |
| 738 | case IEEE80211_STA_RX_BW_160: |
| 739 | status->bw = RATE_INFO_BW_160; |
| 740 | break; |
| 741 | default: |
| 742 | return -EINVAL; |
| 743 | } |
| 744 | |
| 745 | status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc; |
| 746 | if (mode < MT_PHY_TYPE_HE_SU && gi) |
| 747 | status->enc_flags |= RX_ENC_FLAG_SHORT_GI; |
| 748 | |
| 749 | if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { |
| 750 | rxd += 18; |
| 751 | if ((u8 *)rxd - skb->data >= skb->len) |
| 752 | return -EINVAL; |
| 753 | } |
| 754 | } |
| 755 | |
| 756 | amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4); |
| 757 | status->amsdu = !!amsdu_info; |
| 758 | if (status->amsdu) { |
| 759 | status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME; |
| 760 | status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME; |
| 761 | } |
| 762 | |
| 763 | hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad; |
| 764 | if (hdr_trans && ieee80211_has_morefrags(fc)) { |
| 765 | if (mt7921_reverse_frag0_hdr_trans(skb, hdr_gap)) |
| 766 | return -EINVAL; |
| 767 | hdr_trans = false; |
| 768 | } else { |
| 769 | skb_pull(skb, hdr_gap); |
| 770 | if (!hdr_trans && status->amsdu) { |
| 771 | memmove(skb->data + 2, skb->data, |
| 772 | ieee80211_get_hdrlen_from_skb(skb)); |
| 773 | skb_pull(skb, 2); |
| 774 | } |
| 775 | } |
| 776 | |
| 777 | if (!hdr_trans) { |
| 778 | struct ieee80211_hdr *hdr; |
| 779 | |
| 780 | if (insert_ccmp_hdr) { |
| 781 | u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1); |
| 782 | |
| 783 | mt76_insert_ccmp_hdr(skb, key_id); |
| 784 | } |
| 785 | |
| 786 | hdr = mt76_skb_get_hdr(skb); |
| 787 | fc = hdr->frame_control; |
| 788 | if (ieee80211_is_data_qos(fc)) { |
| 789 | seq_ctrl = le16_to_cpu(hdr->seq_ctrl); |
| 790 | qos_ctl = *ieee80211_get_qos_ctl(hdr); |
| 791 | } |
| 792 | } else { |
| 793 | status->flag |= RX_FLAG_8023; |
| 794 | } |
| 795 | |
| 796 | mt7921_mac_assoc_rssi(dev, skb); |
| 797 | |
| 798 | if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023)) |
| 799 | mt7921_mac_decode_he_radiotap(skb, rxv, mode); |
| 800 | |
| 801 | if (!status->wcid || !ieee80211_is_data_qos(fc)) |
| 802 | return 0; |
| 803 | |
| 804 | status->aggr = unicast && !ieee80211_is_qos_nullfunc(fc); |
| 805 | status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); |
| 806 | status->qos_ctl = qos_ctl; |
| 807 | |
| 808 | return 0; |
| 809 | } |
| 810 | |
| 811 | static void |
| 812 | mt7921_mac_write_txwi_8023(struct mt7921_dev *dev, __le32 *txwi, |
| 813 | struct sk_buff *skb, struct mt76_wcid *wcid) |
| 814 | { |
| 815 | u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; |
| 816 | u8 fc_type, fc_stype; |
| 817 | bool wmm = false; |
| 818 | u32 val; |
| 819 | |
| 820 | if (wcid->sta) { |
| 821 | struct ieee80211_sta *sta; |
| 822 | |
| 823 | sta = container_of((void *)wcid, struct ieee80211_sta, drv_priv); |
| 824 | wmm = sta->wme; |
| 825 | } |
| 826 | |
| 827 | val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3) | |
| 828 | FIELD_PREP(MT_TXD1_TID, tid); |
| 829 | |
| 830 | if (be16_to_cpu(skb->protocol) >= ETH_P_802_3_MIN) |
| 831 | val |= MT_TXD1_ETH_802_3; |
| 832 | |
| 833 | txwi[1] |= cpu_to_le32(val); |
| 834 | |
| 835 | fc_type = IEEE80211_FTYPE_DATA >> 2; |
| 836 | fc_stype = wmm ? IEEE80211_STYPE_QOS_DATA >> 4 : 0; |
| 837 | |
| 838 | val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) | |
| 839 | FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype); |
| 840 | |
| 841 | txwi[2] |= cpu_to_le32(val); |
| 842 | |
| 843 | val = FIELD_PREP(MT_TXD7_TYPE, fc_type) | |
| 844 | FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype); |
| 845 | txwi[7] |= cpu_to_le32(val); |
| 846 | } |
| 847 | |
| 848 | static void |
| 849 | mt7921_mac_write_txwi_80211(struct mt7921_dev *dev, __le32 *txwi, |
| 850 | struct sk_buff *skb, struct ieee80211_key_conf *key) |
| 851 | { |
| 852 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| 853 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; |
| 854 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 855 | bool multicast = is_multicast_ether_addr(hdr->addr1); |
| 856 | u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; |
| 857 | __le16 fc = hdr->frame_control; |
| 858 | u8 fc_type, fc_stype; |
| 859 | u32 val; |
| 860 | |
| 861 | if (ieee80211_is_action(fc) && |
| 862 | mgmt->u.action.category == WLAN_CATEGORY_BACK && |
| 863 | mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ) { |
| 864 | u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab); |
| 865 | |
| 866 | txwi[5] |= cpu_to_le32(MT_TXD5_ADD_BA); |
| 867 | tid = (capab >> 2) & IEEE80211_QOS_CTL_TID_MASK; |
| 868 | } else if (ieee80211_is_back_req(hdr->frame_control)) { |
| 869 | struct ieee80211_bar *bar = (struct ieee80211_bar *)hdr; |
| 870 | u16 control = le16_to_cpu(bar->control); |
| 871 | |
| 872 | tid = FIELD_GET(IEEE80211_BAR_CTRL_TID_INFO_MASK, control); |
| 873 | } |
| 874 | |
| 875 | val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) | |
| 876 | FIELD_PREP(MT_TXD1_HDR_INFO, |
| 877 | ieee80211_get_hdrlen_from_skb(skb) / 2) | |
| 878 | FIELD_PREP(MT_TXD1_TID, tid); |
| 879 | txwi[1] |= cpu_to_le32(val); |
| 880 | |
| 881 | fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2; |
| 882 | fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4; |
| 883 | |
| 884 | val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) | |
| 885 | FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype) | |
| 886 | FIELD_PREP(MT_TXD2_MULTICAST, multicast); |
| 887 | |
| 888 | if (key && multicast && ieee80211_is_robust_mgmt_frame(skb) && |
| 889 | key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { |
| 890 | val |= MT_TXD2_BIP; |
| 891 | txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME); |
| 892 | } |
| 893 | |
| 894 | if (!ieee80211_is_data(fc) || multicast || |
| 895 | info->flags & IEEE80211_TX_CTL_USE_MINRATE) |
| 896 | val |= MT_TXD2_FIX_RATE; |
| 897 | |
| 898 | txwi[2] |= cpu_to_le32(val); |
| 899 | |
| 900 | if (ieee80211_is_beacon(fc)) { |
| 901 | txwi[3] &= ~cpu_to_le32(MT_TXD3_SW_POWER_MGMT); |
| 902 | txwi[3] |= cpu_to_le32(MT_TXD3_REM_TX_COUNT); |
| 903 | } |
| 904 | |
| 905 | if (info->flags & IEEE80211_TX_CTL_INJECTED) { |
| 906 | u16 seqno = le16_to_cpu(hdr->seq_ctrl); |
| 907 | |
| 908 | if (ieee80211_is_back_req(hdr->frame_control)) { |
| 909 | struct ieee80211_bar *bar; |
| 910 | |
| 911 | bar = (struct ieee80211_bar *)skb->data; |
| 912 | seqno = le16_to_cpu(bar->start_seq_num); |
| 913 | } |
| 914 | |
| 915 | val = MT_TXD3_SN_VALID | |
| 916 | FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno)); |
| 917 | txwi[3] |= cpu_to_le32(val); |
| 918 | txwi[7] &= ~cpu_to_le32(MT_TXD7_HW_AMSDU); |
| 919 | } |
| 920 | |
| 921 | if (mt76_is_mmio(&dev->mt76)) { |
| 922 | val = FIELD_PREP(MT_TXD7_TYPE, fc_type) | |
| 923 | FIELD_PREP(MT_TXD7_SUB_TYPE, fc_stype); |
| 924 | txwi[7] |= cpu_to_le32(val); |
| 925 | } else { |
| 926 | val = FIELD_PREP(MT_TXD8_L_TYPE, fc_type) | |
| 927 | FIELD_PREP(MT_TXD8_L_SUB_TYPE, fc_stype); |
| 928 | txwi[8] |= cpu_to_le32(val); |
| 929 | } |
| 930 | } |
| 931 | |
| 932 | void mt7921_mac_write_txwi(struct mt7921_dev *dev, __le32 *txwi, |
| 933 | struct sk_buff *skb, struct mt76_wcid *wcid, |
| 934 | struct ieee80211_key_conf *key, int pid, |
| 935 | bool beacon) |
| 936 | { |
| 937 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 938 | struct ieee80211_vif *vif = info->control.vif; |
| 939 | struct mt76_phy *mphy = &dev->mphy; |
| 940 | u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0; |
| 941 | bool is_mmio = mt76_is_mmio(&dev->mt76); |
| 942 | u32 sz_txd = is_mmio ? MT_TXD_SIZE : MT_SDIO_TXD_SIZE; |
| 943 | bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP; |
| 944 | u16 tx_count = 15; |
| 945 | u32 val; |
| 946 | |
| 947 | if (vif) { |
| 948 | struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv; |
| 949 | |
| 950 | omac_idx = mvif->omac_idx; |
| 951 | wmm_idx = mvif->wmm_idx; |
| 952 | } |
| 953 | |
| 954 | if (beacon) { |
| 955 | p_fmt = MT_TX_TYPE_FW; |
| 956 | q_idx = MT_LMAC_BCN0; |
| 957 | } else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) { |
| 958 | p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF; |
| 959 | q_idx = MT_LMAC_ALTX0; |
| 960 | } else { |
| 961 | p_fmt = is_mmio ? MT_TX_TYPE_CT : MT_TX_TYPE_SF; |
| 962 | q_idx = wmm_idx * MT7921_MAX_WMM_SETS + |
| 963 | mt76_connac_lmac_mapping(skb_get_queue_mapping(skb)); |
| 964 | } |
| 965 | |
| 966 | val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + sz_txd) | |
| 967 | FIELD_PREP(MT_TXD0_PKT_FMT, p_fmt) | |
| 968 | FIELD_PREP(MT_TXD0_Q_IDX, q_idx); |
| 969 | txwi[0] = cpu_to_le32(val); |
| 970 | |
| 971 | val = MT_TXD1_LONG_FORMAT | |
| 972 | FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) | |
| 973 | FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx); |
| 974 | |
| 975 | txwi[1] = cpu_to_le32(val); |
| 976 | txwi[2] = 0; |
| 977 | |
| 978 | val = FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count); |
| 979 | if (key) |
| 980 | val |= MT_TXD3_PROTECT_FRAME; |
| 981 | if (info->flags & IEEE80211_TX_CTL_NO_ACK) |
| 982 | val |= MT_TXD3_NO_ACK; |
| 983 | |
| 984 | txwi[3] = cpu_to_le32(val); |
| 985 | txwi[4] = 0; |
| 986 | |
| 987 | val = FIELD_PREP(MT_TXD5_PID, pid); |
| 988 | if (pid >= MT_PACKET_ID_FIRST) |
| 989 | val |= MT_TXD5_TX_STATUS_HOST; |
| 990 | txwi[5] = cpu_to_le32(val); |
| 991 | |
| 992 | txwi[6] = 0; |
| 993 | txwi[7] = wcid->amsdu ? cpu_to_le32(MT_TXD7_HW_AMSDU) : 0; |
| 994 | |
| 995 | if (is_8023) |
| 996 | mt7921_mac_write_txwi_8023(dev, txwi, skb, wcid); |
| 997 | else |
| 998 | mt7921_mac_write_txwi_80211(dev, txwi, skb, key); |
| 999 | |
| 1000 | if (txwi[2] & cpu_to_le32(MT_TXD2_FIX_RATE)) { |
| 1001 | int rateidx = vif ? ffs(vif->bss_conf.basic_rates) - 1 : 0; |
| 1002 | u16 rate, mode; |
| 1003 | |
| 1004 | /* hardware won't add HTC for mgmt/ctrl frame */ |
| 1005 | txwi[2] |= cpu_to_le32(MT_TXD2_HTC_VLD); |
| 1006 | |
| 1007 | rate = mt76_calculate_default_rate(mphy, rateidx); |
| 1008 | mode = rate >> 8; |
| 1009 | rate &= GENMASK(7, 0); |
| 1010 | rate |= FIELD_PREP(MT_TX_RATE_MODE, mode); |
| 1011 | |
| 1012 | val = MT_TXD6_FIXED_BW | |
| 1013 | FIELD_PREP(MT_TXD6_TX_RATE, rate); |
| 1014 | txwi[6] |= cpu_to_le32(val); |
| 1015 | txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); |
| 1016 | } |
| 1017 | } |
| 1018 | EXPORT_SYMBOL_GPL(mt7921_mac_write_txwi); |
| 1019 | |
| 1020 | void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) |
| 1021 | { |
| 1022 | struct mt7921_sta *msta; |
| 1023 | u16 fc, tid; |
| 1024 | u32 val; |
| 1025 | |
| 1026 | if (!sta || !(sta->ht_cap.ht_supported || sta->he_cap.has_he)) |
| 1027 | return; |
| 1028 | |
| 1029 | tid = le32_get_bits(txwi[1], MT_TXD1_TID); |
| 1030 | if (tid >= 6) /* skip VO queue */ |
| 1031 | return; |
| 1032 | |
| 1033 | val = le32_to_cpu(txwi[2]); |
| 1034 | fc = FIELD_GET(MT_TXD2_FRAME_TYPE, val) << 2 | |
| 1035 | FIELD_GET(MT_TXD2_SUB_TYPE, val) << 4; |
| 1036 | if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA))) |
| 1037 | return; |
| 1038 | |
| 1039 | msta = (struct mt7921_sta *)sta->drv_priv; |
| 1040 | if (!test_and_set_bit(tid, &msta->ampdu_state)) |
| 1041 | ieee80211_start_tx_ba_session(sta, tid, 0); |
| 1042 | } |
| 1043 | EXPORT_SYMBOL_GPL(mt7921_tx_check_aggr); |
| 1044 | |
| 1045 | static bool |
| 1046 | mt7921_mac_add_txs_skb(struct mt7921_dev *dev, struct mt76_wcid *wcid, int pid, |
| 1047 | __le32 *txs_data) |
| 1048 | { |
| 1049 | struct mt7921_sta *msta = container_of(wcid, struct mt7921_sta, wcid); |
| 1050 | struct mt76_sta_stats *stats = &msta->stats; |
| 1051 | struct ieee80211_supported_band *sband; |
| 1052 | struct mt76_dev *mdev = &dev->mt76; |
| 1053 | struct ieee80211_tx_info *info; |
| 1054 | struct rate_info rate = {}; |
| 1055 | struct sk_buff_head list; |
| 1056 | u32 txrate, txs, mode; |
| 1057 | struct sk_buff *skb; |
| 1058 | bool cck = false; |
| 1059 | |
| 1060 | mt76_tx_status_lock(mdev, &list); |
| 1061 | skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list); |
| 1062 | if (!skb) |
| 1063 | goto out; |
| 1064 | |
| 1065 | info = IEEE80211_SKB_CB(skb); |
| 1066 | txs = le32_to_cpu(txs_data[0]); |
| 1067 | if (!(txs & MT_TXS0_ACK_ERROR_MASK)) |
| 1068 | info->flags |= IEEE80211_TX_STAT_ACK; |
| 1069 | |
| 1070 | info->status.ampdu_len = 1; |
| 1071 | info->status.ampdu_ack_len = !!(info->flags & |
| 1072 | IEEE80211_TX_STAT_ACK); |
| 1073 | |
| 1074 | info->status.rates[0].idx = -1; |
| 1075 | |
| 1076 | if (!wcid->sta) |
| 1077 | goto out; |
| 1078 | |
| 1079 | txrate = FIELD_GET(MT_TXS0_TX_RATE, txs); |
| 1080 | |
| 1081 | rate.mcs = FIELD_GET(MT_TX_RATE_IDX, txrate); |
| 1082 | rate.nss = FIELD_GET(MT_TX_RATE_NSS, txrate) + 1; |
| 1083 | |
| 1084 | if (rate.nss - 1 < ARRAY_SIZE(stats->tx_nss)) |
| 1085 | stats->tx_nss[rate.nss - 1]++; |
| 1086 | if (rate.mcs < ARRAY_SIZE(stats->tx_mcs)) |
| 1087 | stats->tx_mcs[rate.mcs]++; |
| 1088 | |
| 1089 | mode = FIELD_GET(MT_TX_RATE_MODE, txrate); |
| 1090 | switch (mode) { |
| 1091 | case MT_PHY_TYPE_CCK: |
| 1092 | cck = true; |
| 1093 | fallthrough; |
| 1094 | case MT_PHY_TYPE_OFDM: |
| 1095 | if (dev->mphy.chandef.chan->band == NL80211_BAND_5GHZ) |
| 1096 | sband = &dev->mphy.sband_5g.sband; |
| 1097 | else |
| 1098 | sband = &dev->mphy.sband_2g.sband; |
| 1099 | |
| 1100 | rate.mcs = mt76_get_rate(dev->mphy.dev, sband, rate.mcs, cck); |
| 1101 | rate.legacy = sband->bitrates[rate.mcs].bitrate; |
| 1102 | break; |
| 1103 | case MT_PHY_TYPE_HT: |
| 1104 | case MT_PHY_TYPE_HT_GF: |
| 1105 | if (rate.mcs > 31) |
| 1106 | goto out; |
| 1107 | |
| 1108 | rate.flags = RATE_INFO_FLAGS_MCS; |
| 1109 | if (wcid->rate.flags & RATE_INFO_FLAGS_SHORT_GI) |
| 1110 | rate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| 1111 | break; |
| 1112 | case MT_PHY_TYPE_VHT: |
| 1113 | if (rate.mcs > 9) |
| 1114 | goto out; |
| 1115 | |
| 1116 | rate.flags = RATE_INFO_FLAGS_VHT_MCS; |
| 1117 | break; |
| 1118 | case MT_PHY_TYPE_HE_SU: |
| 1119 | case MT_PHY_TYPE_HE_EXT_SU: |
| 1120 | case MT_PHY_TYPE_HE_TB: |
| 1121 | case MT_PHY_TYPE_HE_MU: |
| 1122 | if (rate.mcs > 11) |
| 1123 | goto out; |
| 1124 | |
| 1125 | rate.he_gi = wcid->rate.he_gi; |
| 1126 | rate.he_dcm = FIELD_GET(MT_TX_RATE_DCM, txrate); |
| 1127 | rate.flags = RATE_INFO_FLAGS_HE_MCS; |
| 1128 | break; |
| 1129 | default: |
| 1130 | goto out; |
| 1131 | } |
| 1132 | stats->tx_mode[mode]++; |
| 1133 | |
| 1134 | switch (FIELD_GET(MT_TXS0_BW, txs)) { |
| 1135 | case IEEE80211_STA_RX_BW_160: |
| 1136 | rate.bw = RATE_INFO_BW_160; |
| 1137 | stats->tx_bw[3]++; |
| 1138 | break; |
| 1139 | case IEEE80211_STA_RX_BW_80: |
| 1140 | rate.bw = RATE_INFO_BW_80; |
| 1141 | stats->tx_bw[2]++; |
| 1142 | break; |
| 1143 | case IEEE80211_STA_RX_BW_40: |
| 1144 | rate.bw = RATE_INFO_BW_40; |
| 1145 | stats->tx_bw[1]++; |
| 1146 | break; |
| 1147 | default: |
| 1148 | rate.bw = RATE_INFO_BW_20; |
| 1149 | stats->tx_bw[0]++; |
| 1150 | break; |
| 1151 | } |
| 1152 | wcid->rate = rate; |
| 1153 | |
| 1154 | out: |
| 1155 | if (skb) |
| 1156 | mt76_tx_status_skb_done(mdev, skb, &list); |
| 1157 | mt76_tx_status_unlock(mdev, &list); |
| 1158 | |
| 1159 | return !!skb; |
| 1160 | } |
| 1161 | |
| 1162 | void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) |
| 1163 | { |
| 1164 | struct mt7921_sta *msta = NULL; |
| 1165 | struct mt76_wcid *wcid; |
| 1166 | __le32 *txs_data = data; |
| 1167 | u16 wcidx; |
| 1168 | u8 pid; |
| 1169 | |
| 1170 | if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) > 1) |
| 1171 | return; |
| 1172 | |
| 1173 | wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID); |
| 1174 | pid = le32_get_bits(txs_data[3], MT_TXS3_PID); |
| 1175 | |
| 1176 | if (pid < MT_PACKET_ID_FIRST) |
| 1177 | return; |
| 1178 | |
| 1179 | if (wcidx >= MT7921_WTBL_SIZE) |
| 1180 | return; |
| 1181 | |
| 1182 | rcu_read_lock(); |
| 1183 | |
| 1184 | wcid = rcu_dereference(dev->mt76.wcid[wcidx]); |
| 1185 | if (!wcid) |
| 1186 | goto out; |
| 1187 | |
| 1188 | mt7921_mac_add_txs_skb(dev, wcid, pid, txs_data); |
| 1189 | |
| 1190 | if (!wcid->sta) |
| 1191 | goto out; |
| 1192 | |
| 1193 | msta = container_of(wcid, struct mt7921_sta, wcid); |
| 1194 | spin_lock_bh(&dev->sta_poll_lock); |
| 1195 | if (list_empty(&msta->poll_list)) |
| 1196 | list_add_tail(&msta->poll_list, &dev->sta_poll_list); |
| 1197 | spin_unlock_bh(&dev->sta_poll_lock); |
| 1198 | |
| 1199 | out: |
| 1200 | rcu_read_unlock(); |
| 1201 | } |
| 1202 | EXPORT_SYMBOL_GPL(mt7921_mac_add_txs); |
| 1203 | |
| 1204 | void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, |
| 1205 | struct sk_buff *skb) |
| 1206 | { |
| 1207 | struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| 1208 | __le32 *rxd = (__le32 *)skb->data; |
| 1209 | __le32 *end = (__le32 *)&skb->data[skb->len]; |
| 1210 | enum rx_pkt_type type; |
| 1211 | u16 flag; |
| 1212 | |
| 1213 | type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); |
| 1214 | flag = le32_get_bits(rxd[0], MT_RXD0_PKT_FLAG); |
| 1215 | |
| 1216 | if (type == PKT_TYPE_RX_EVENT && flag == 0x1) |
| 1217 | type = PKT_TYPE_NORMAL_MCU; |
| 1218 | |
| 1219 | switch (type) { |
| 1220 | case PKT_TYPE_RX_EVENT: |
| 1221 | mt7921_mcu_rx_event(dev, skb); |
| 1222 | break; |
| 1223 | case PKT_TYPE_TXS: |
| 1224 | for (rxd += 2; rxd + 8 <= end; rxd += 8) |
| 1225 | mt7921_mac_add_txs(dev, rxd); |
| 1226 | dev_kfree_skb(skb); |
| 1227 | break; |
| 1228 | case PKT_TYPE_NORMAL_MCU: |
| 1229 | case PKT_TYPE_NORMAL: |
| 1230 | if (!mt7921_mac_fill_rx(dev, skb)) { |
| 1231 | mt76_rx(&dev->mt76, q, skb); |
| 1232 | return; |
| 1233 | } |
| 1234 | fallthrough; |
| 1235 | default: |
| 1236 | dev_kfree_skb(skb); |
| 1237 | break; |
| 1238 | } |
| 1239 | } |
| 1240 | EXPORT_SYMBOL_GPL(mt7921_queue_rx_skb); |
| 1241 | |
| 1242 | void mt7921_mac_reset_counters(struct mt7921_phy *phy) |
| 1243 | { |
| 1244 | struct mt7921_dev *dev = phy->dev; |
| 1245 | int i; |
| 1246 | |
| 1247 | for (i = 0; i < 4; i++) { |
| 1248 | mt76_rr(dev, MT_TX_AGG_CNT(0, i)); |
| 1249 | mt76_rr(dev, MT_TX_AGG_CNT2(0, i)); |
| 1250 | } |
| 1251 | |
| 1252 | dev->mt76.phy.survey_time = ktime_get_boottime(); |
| 1253 | memset(&dev->mt76.aggr_stats[0], 0, sizeof(dev->mt76.aggr_stats) / 2); |
| 1254 | |
| 1255 | /* reset airtime counters */ |
| 1256 | mt76_rr(dev, MT_MIB_SDR9(0)); |
| 1257 | mt76_rr(dev, MT_MIB_SDR36(0)); |
| 1258 | mt76_rr(dev, MT_MIB_SDR37(0)); |
| 1259 | |
| 1260 | mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| 1261 | mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| 1262 | } |
| 1263 | |
| 1264 | void mt7921_mac_set_timing(struct mt7921_phy *phy) |
| 1265 | { |
| 1266 | s16 coverage_class = phy->coverage_class; |
| 1267 | struct mt7921_dev *dev = phy->dev; |
| 1268 | u32 val, reg_offset; |
| 1269 | u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) | |
| 1270 | FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48); |
| 1271 | u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) | |
| 1272 | FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28); |
| 1273 | bool is_2ghz = phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ; |
| 1274 | int sifs = is_2ghz ? 10 : 16, offset; |
| 1275 | |
| 1276 | if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) |
| 1277 | return; |
| 1278 | |
| 1279 | mt76_set(dev, MT_ARB_SCR(0), |
| 1280 | MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); |
| 1281 | udelay(1); |
| 1282 | |
| 1283 | offset = 3 * coverage_class; |
| 1284 | reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) | |
| 1285 | FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset); |
| 1286 | |
| 1287 | mt76_wr(dev, MT_TMAC_CDTR(0), cck + reg_offset); |
| 1288 | mt76_wr(dev, MT_TMAC_ODTR(0), ofdm + reg_offset); |
| 1289 | mt76_wr(dev, MT_TMAC_ICR0(0), |
| 1290 | FIELD_PREP(MT_IFS_EIFS, 360) | |
| 1291 | FIELD_PREP(MT_IFS_RIFS, 2) | |
| 1292 | FIELD_PREP(MT_IFS_SIFS, sifs) | |
| 1293 | FIELD_PREP(MT_IFS_SLOT, phy->slottime)); |
| 1294 | |
| 1295 | if (phy->slottime < 20 || !is_2ghz) |
| 1296 | val = MT7921_CFEND_RATE_DEFAULT; |
| 1297 | else |
| 1298 | val = MT7921_CFEND_RATE_11B; |
| 1299 | |
| 1300 | mt76_rmw_field(dev, MT_AGG_ACR0(0), MT_AGG_ACR_CFEND_RATE, val); |
| 1301 | mt76_clear(dev, MT_ARB_SCR(0), |
| 1302 | MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); |
| 1303 | } |
| 1304 | |
| 1305 | static u8 |
| 1306 | mt7921_phy_get_nf(struct mt7921_phy *phy, int idx) |
| 1307 | { |
| 1308 | return 0; |
| 1309 | } |
| 1310 | |
| 1311 | static void |
| 1312 | mt7921_phy_update_channel(struct mt76_phy *mphy, int idx) |
| 1313 | { |
| 1314 | struct mt7921_dev *dev = container_of(mphy->dev, struct mt7921_dev, mt76); |
| 1315 | struct mt7921_phy *phy = (struct mt7921_phy *)mphy->priv; |
| 1316 | struct mt76_channel_state *state; |
| 1317 | u64 busy_time, tx_time, rx_time, obss_time; |
| 1318 | int nf; |
| 1319 | |
| 1320 | busy_time = mt76_get_field(dev, MT_MIB_SDR9(idx), |
| 1321 | MT_MIB_SDR9_BUSY_MASK); |
| 1322 | tx_time = mt76_get_field(dev, MT_MIB_SDR36(idx), |
| 1323 | MT_MIB_SDR36_TXTIME_MASK); |
| 1324 | rx_time = mt76_get_field(dev, MT_MIB_SDR37(idx), |
| 1325 | MT_MIB_SDR37_RXTIME_MASK); |
| 1326 | obss_time = mt76_get_field(dev, MT_WF_RMAC_MIB_AIRTIME14(idx), |
| 1327 | MT_MIB_OBSSTIME_MASK); |
| 1328 | |
| 1329 | nf = mt7921_phy_get_nf(phy, idx); |
| 1330 | if (!phy->noise) |
| 1331 | phy->noise = nf << 4; |
| 1332 | else if (nf) |
| 1333 | phy->noise += nf - (phy->noise >> 4); |
| 1334 | |
| 1335 | state = mphy->chan_state; |
| 1336 | state->cc_busy += busy_time; |
| 1337 | state->cc_tx += tx_time; |
| 1338 | state->cc_rx += rx_time + obss_time; |
| 1339 | state->cc_bss_rx += rx_time; |
| 1340 | state->noise = -(phy->noise >> 4); |
| 1341 | } |
| 1342 | |
| 1343 | void mt7921_update_channel(struct mt76_phy *mphy) |
| 1344 | { |
| 1345 | struct mt7921_dev *dev = container_of(mphy->dev, struct mt7921_dev, mt76); |
| 1346 | |
| 1347 | if (mt76_connac_pm_wake(mphy, &dev->pm)) |
| 1348 | return; |
| 1349 | |
| 1350 | mt7921_phy_update_channel(mphy, 0); |
| 1351 | /* reset obss airtime */ |
| 1352 | mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| 1353 | |
| 1354 | mt76_connac_power_save_sched(mphy, &dev->pm); |
| 1355 | } |
| 1356 | EXPORT_SYMBOL_GPL(mt7921_update_channel); |
| 1357 | |
| 1358 | static void |
| 1359 | mt7921_vif_connect_iter(void *priv, u8 *mac, |
| 1360 | struct ieee80211_vif *vif) |
| 1361 | { |
| 1362 | struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; |
| 1363 | struct mt7921_dev *dev = mvif->phy->dev; |
| 1364 | |
| 1365 | if (vif->type == NL80211_IFTYPE_STATION) |
| 1366 | ieee80211_disconnect(vif, true); |
| 1367 | |
| 1368 | mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, true); |
| 1369 | mt7921_mcu_set_tx(dev, vif); |
| 1370 | } |
| 1371 | |
| 1372 | /* system error recovery */ |
| 1373 | void mt7921_mac_reset_work(struct work_struct *work) |
| 1374 | { |
| 1375 | struct mt7921_dev *dev = container_of(work, struct mt7921_dev, |
| 1376 | reset_work); |
| 1377 | struct ieee80211_hw *hw = mt76_hw(dev); |
| 1378 | struct mt76_connac_pm *pm = &dev->pm; |
| 1379 | int i; |
| 1380 | |
| 1381 | dev_err(dev->mt76.dev, "chip reset\n"); |
| 1382 | dev->hw_full_reset = true; |
| 1383 | ieee80211_stop_queues(hw); |
| 1384 | |
| 1385 | cancel_delayed_work_sync(&dev->mphy.mac_work); |
| 1386 | cancel_delayed_work_sync(&pm->ps_work); |
| 1387 | cancel_work_sync(&pm->wake_work); |
| 1388 | |
| 1389 | mutex_lock(&dev->mt76.mutex); |
| 1390 | for (i = 0; i < 10; i++) |
| 1391 | if (!mt7921_dev_reset(dev)) |
| 1392 | break; |
| 1393 | mutex_unlock(&dev->mt76.mutex); |
| 1394 | |
| 1395 | if (i == 10) |
| 1396 | dev_err(dev->mt76.dev, "chip reset failed\n"); |
| 1397 | |
| 1398 | if (test_and_clear_bit(MT76_HW_SCANNING, &dev->mphy.state)) { |
| 1399 | struct cfg80211_scan_info info = { |
| 1400 | .aborted = true, |
| 1401 | }; |
| 1402 | |
| 1403 | ieee80211_scan_completed(dev->mphy.hw, &info); |
| 1404 | } |
| 1405 | |
| 1406 | dev->hw_full_reset = false; |
| 1407 | pm->suspended = false; |
| 1408 | ieee80211_wake_queues(hw); |
| 1409 | ieee80211_iterate_active_interfaces(hw, |
| 1410 | IEEE80211_IFACE_ITER_RESUME_ALL, |
| 1411 | mt7921_vif_connect_iter, NULL); |
| 1412 | mt76_connac_power_save_sched(&dev->mt76.phy, pm); |
| 1413 | } |
| 1414 | |
| 1415 | void mt7921_reset(struct mt76_dev *mdev) |
| 1416 | { |
| 1417 | struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| 1418 | |
| 1419 | if (!dev->hw_init_done) |
| 1420 | return; |
| 1421 | |
| 1422 | if (dev->hw_full_reset) |
| 1423 | return; |
| 1424 | |
| 1425 | queue_work(dev->mt76.wq, &dev->reset_work); |
| 1426 | } |
| 1427 | |
| 1428 | void mt7921_mac_update_mib_stats(struct mt7921_phy *phy) |
| 1429 | { |
| 1430 | struct mt7921_dev *dev = phy->dev; |
| 1431 | struct mib_stats *mib = &phy->mib; |
| 1432 | int i, aggr0 = 0, aggr1; |
| 1433 | u32 val; |
| 1434 | |
| 1435 | mib->fcs_err_cnt += mt76_get_field(dev, MT_MIB_SDR3(0), |
| 1436 | MT_MIB_SDR3_FCS_ERR_MASK); |
| 1437 | mib->ack_fail_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR3(0), |
| 1438 | MT_MIB_ACK_FAIL_COUNT_MASK); |
| 1439 | mib->ba_miss_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR2(0), |
| 1440 | MT_MIB_BA_FAIL_COUNT_MASK); |
| 1441 | mib->rts_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR0(0), |
| 1442 | MT_MIB_RTS_COUNT_MASK); |
| 1443 | mib->rts_retries_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR1(0), |
| 1444 | MT_MIB_RTS_FAIL_COUNT_MASK); |
| 1445 | |
| 1446 | mib->tx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR12(0)); |
| 1447 | mib->tx_mpdu_attempts_cnt += mt76_rr(dev, MT_MIB_SDR14(0)); |
| 1448 | mib->tx_mpdu_success_cnt += mt76_rr(dev, MT_MIB_SDR15(0)); |
| 1449 | |
| 1450 | val = mt76_rr(dev, MT_MIB_SDR32(0)); |
| 1451 | mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR9_EBF_CNT_MASK, val); |
| 1452 | mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR9_IBF_CNT_MASK, val); |
| 1453 | |
| 1454 | val = mt76_rr(dev, MT_ETBF_TX_APP_CNT(0)); |
| 1455 | mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, val); |
| 1456 | mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, val); |
| 1457 | |
| 1458 | val = mt76_rr(dev, MT_ETBF_RX_FB_CNT(0)); |
| 1459 | mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, val); |
| 1460 | mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, val); |
| 1461 | mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, val); |
| 1462 | mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, val); |
| 1463 | |
| 1464 | mib->rx_mpdu_cnt += mt76_rr(dev, MT_MIB_SDR5(0)); |
| 1465 | mib->rx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR22(0)); |
| 1466 | mib->rx_ampdu_bytes_cnt += mt76_rr(dev, MT_MIB_SDR23(0)); |
| 1467 | mib->rx_ba_cnt += mt76_rr(dev, MT_MIB_SDR31(0)); |
| 1468 | |
| 1469 | for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) { |
| 1470 | val = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i)); |
| 1471 | mib->tx_amsdu[i] += val; |
| 1472 | mib->tx_amsdu_cnt += val; |
| 1473 | } |
| 1474 | |
| 1475 | for (i = 0, aggr1 = aggr0 + 4; i < 4; i++) { |
| 1476 | u32 val2; |
| 1477 | |
| 1478 | val = mt76_rr(dev, MT_TX_AGG_CNT(0, i)); |
| 1479 | val2 = mt76_rr(dev, MT_TX_AGG_CNT2(0, i)); |
| 1480 | |
| 1481 | dev->mt76.aggr_stats[aggr0++] += val & 0xffff; |
| 1482 | dev->mt76.aggr_stats[aggr0++] += val >> 16; |
| 1483 | dev->mt76.aggr_stats[aggr1++] += val2 & 0xffff; |
| 1484 | dev->mt76.aggr_stats[aggr1++] += val2 >> 16; |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | void mt7921_mac_work(struct work_struct *work) |
| 1489 | { |
| 1490 | struct mt7921_phy *phy; |
| 1491 | struct mt76_phy *mphy; |
| 1492 | |
| 1493 | mphy = (struct mt76_phy *)container_of(work, struct mt76_phy, |
| 1494 | mac_work.work); |
| 1495 | phy = mphy->priv; |
| 1496 | |
| 1497 | mt7921_mutex_acquire(phy->dev); |
| 1498 | |
| 1499 | mt76_update_survey(mphy); |
| 1500 | if (++mphy->mac_work_count == 2) { |
| 1501 | mphy->mac_work_count = 0; |
| 1502 | |
| 1503 | mt7921_mac_update_mib_stats(phy); |
| 1504 | } |
| 1505 | |
| 1506 | mt7921_mutex_release(phy->dev); |
| 1507 | |
| 1508 | mt76_tx_status_check(mphy->dev, false); |
| 1509 | ieee80211_queue_delayed_work(phy->mt76->hw, &mphy->mac_work, |
| 1510 | MT7921_WATCHDOG_TIME); |
| 1511 | } |
| 1512 | |
| 1513 | void mt7921_pm_wake_work(struct work_struct *work) |
| 1514 | { |
| 1515 | struct mt7921_dev *dev; |
| 1516 | struct mt76_phy *mphy; |
| 1517 | |
| 1518 | dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, |
| 1519 | pm.wake_work); |
| 1520 | mphy = dev->phy.mt76; |
| 1521 | |
| 1522 | if (!mt7921_mcu_drv_pmctrl(dev)) { |
| 1523 | struct mt76_dev *mdev = &dev->mt76; |
| 1524 | int i; |
| 1525 | |
| 1526 | if (mt76_is_sdio(mdev)) { |
| 1527 | mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); |
| 1528 | mt76_worker_schedule(&mdev->sdio.txrx_worker); |
| 1529 | } else { |
| 1530 | mt76_for_each_q_rx(mdev, i) |
| 1531 | napi_schedule(&mdev->napi[i]); |
| 1532 | mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); |
| 1533 | mt7921_mcu_tx_cleanup(dev); |
| 1534 | } |
| 1535 | if (test_bit(MT76_STATE_RUNNING, &mphy->state)) |
| 1536 | ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, |
| 1537 | MT7921_WATCHDOG_TIME); |
| 1538 | } |
| 1539 | |
| 1540 | ieee80211_wake_queues(mphy->hw); |
| 1541 | wake_up(&dev->pm.wait); |
| 1542 | } |
| 1543 | |
| 1544 | void mt7921_pm_power_save_work(struct work_struct *work) |
| 1545 | { |
| 1546 | struct mt7921_dev *dev; |
| 1547 | unsigned long delta; |
| 1548 | struct mt76_phy *mphy; |
| 1549 | |
| 1550 | dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, |
| 1551 | pm.ps_work.work); |
| 1552 | mphy = dev->phy.mt76; |
| 1553 | |
| 1554 | delta = dev->pm.idle_timeout; |
| 1555 | if (test_bit(MT76_HW_SCANNING, &mphy->state) || |
| 1556 | test_bit(MT76_HW_SCHED_SCANNING, &mphy->state) || |
| 1557 | dev->fw_assert) |
| 1558 | goto out; |
| 1559 | |
| 1560 | if (mutex_is_locked(&dev->mt76.mutex)) |
| 1561 | /* if mt76 mutex is held we should not put the device |
| 1562 | * to sleep since we are currently accessing device |
| 1563 | * register map. We need to wait for the next power_save |
| 1564 | * trigger. |
| 1565 | */ |
| 1566 | goto out; |
| 1567 | |
| 1568 | if (time_is_after_jiffies(dev->pm.last_activity + delta)) { |
| 1569 | delta = dev->pm.last_activity + delta - jiffies; |
| 1570 | goto out; |
| 1571 | } |
| 1572 | |
| 1573 | if (!mt7921_mcu_fw_pmctrl(dev)) { |
| 1574 | cancel_delayed_work_sync(&mphy->mac_work); |
| 1575 | return; |
| 1576 | } |
| 1577 | out: |
| 1578 | queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work, delta); |
| 1579 | } |
| 1580 | |
| 1581 | void mt7921_coredump_work(struct work_struct *work) |
| 1582 | { |
| 1583 | struct mt7921_dev *dev; |
| 1584 | char *dump, *data; |
| 1585 | |
| 1586 | dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, |
| 1587 | coredump.work.work); |
| 1588 | |
| 1589 | if (time_is_after_jiffies(dev->coredump.last_activity + |
| 1590 | 4 * MT76_CONNAC_COREDUMP_TIMEOUT)) { |
| 1591 | queue_delayed_work(dev->mt76.wq, &dev->coredump.work, |
| 1592 | MT76_CONNAC_COREDUMP_TIMEOUT); |
| 1593 | return; |
| 1594 | } |
| 1595 | |
| 1596 | dump = vzalloc(MT76_CONNAC_COREDUMP_SZ); |
| 1597 | data = dump; |
| 1598 | |
| 1599 | while (true) { |
| 1600 | struct sk_buff *skb; |
| 1601 | |
| 1602 | spin_lock_bh(&dev->mt76.lock); |
| 1603 | skb = __skb_dequeue(&dev->coredump.msg_list); |
| 1604 | spin_unlock_bh(&dev->mt76.lock); |
| 1605 | |
| 1606 | if (!skb) |
| 1607 | break; |
| 1608 | |
| 1609 | skb_pull(skb, sizeof(struct mt7921_mcu_rxd)); |
| 1610 | if (!dump || data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) { |
| 1611 | dev_kfree_skb(skb); |
| 1612 | continue; |
| 1613 | } |
| 1614 | |
| 1615 | memcpy(data, skb->data, skb->len); |
| 1616 | data += skb->len; |
| 1617 | |
| 1618 | dev_kfree_skb(skb); |
| 1619 | } |
| 1620 | |
| 1621 | if (dump) |
| 1622 | dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ, |
| 1623 | GFP_KERNEL); |
| 1624 | |
| 1625 | mt7921_reset(&dev->mt76); |
| 1626 | } |
| 1627 | |
| 1628 | /* usb_sdio */ |
| 1629 | static void |
| 1630 | mt7921_usb_sdio_write_txwi(struct mt7921_dev *dev, struct mt76_wcid *wcid, |
| 1631 | enum mt76_txq_id qid, struct ieee80211_sta *sta, |
| 1632 | struct ieee80211_key_conf *key, int pid, |
| 1633 | struct sk_buff *skb) |
| 1634 | { |
| 1635 | __le32 *txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE); |
| 1636 | |
| 1637 | memset(txwi, 0, MT_SDIO_TXD_SIZE); |
| 1638 | mt7921_mac_write_txwi(dev, txwi, skb, wcid, key, pid, false); |
| 1639 | skb_push(skb, MT_SDIO_TXD_SIZE); |
| 1640 | } |
| 1641 | |
| 1642 | int mt7921_usb_sdio_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, |
| 1643 | enum mt76_txq_id qid, struct mt76_wcid *wcid, |
| 1644 | struct ieee80211_sta *sta, |
| 1645 | struct mt76_tx_info *tx_info) |
| 1646 | { |
| 1647 | struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| 1648 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); |
| 1649 | struct ieee80211_key_conf *key = info->control.hw_key; |
| 1650 | struct sk_buff *skb = tx_info->skb; |
| 1651 | int err, pad, pktid, type; |
| 1652 | |
| 1653 | if (unlikely(tx_info->skb->len <= ETH_HLEN)) |
| 1654 | return -EINVAL; |
| 1655 | |
| 1656 | if (!wcid) |
| 1657 | wcid = &dev->mt76.global_wcid; |
| 1658 | |
| 1659 | if (sta) { |
| 1660 | struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; |
| 1661 | |
| 1662 | if (time_after(jiffies, msta->last_txs + HZ / 4)) { |
| 1663 | info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; |
| 1664 | msta->last_txs = jiffies; |
| 1665 | } |
| 1666 | } |
| 1667 | |
| 1668 | pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb); |
| 1669 | mt7921_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb); |
| 1670 | |
| 1671 | type = mt76_is_sdio(mdev) ? MT7921_SDIO_DATA : 0; |
| 1672 | mt7921_skb_add_usb_sdio_hdr(dev, skb, type); |
| 1673 | pad = round_up(skb->len, 4) - skb->len; |
| 1674 | if (mt76_is_usb(mdev)) |
| 1675 | pad += 4; |
| 1676 | |
| 1677 | err = mt76_skb_adjust_pad(skb, pad); |
| 1678 | if (err) |
| 1679 | /* Release pktid in case of error. */ |
| 1680 | idr_remove(&wcid->pktid, pktid); |
| 1681 | |
| 1682 | return err; |
| 1683 | } |
| 1684 | EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_prepare_skb); |
| 1685 | |
| 1686 | void mt7921_usb_sdio_tx_complete_skb(struct mt76_dev *mdev, |
| 1687 | struct mt76_queue_entry *e) |
| 1688 | { |
| 1689 | __le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE); |
| 1690 | unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; |
| 1691 | struct ieee80211_sta *sta; |
| 1692 | struct mt76_wcid *wcid; |
| 1693 | u16 idx; |
| 1694 | |
| 1695 | idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); |
| 1696 | wcid = rcu_dereference(mdev->wcid[idx]); |
| 1697 | sta = wcid_to_sta(wcid); |
| 1698 | |
| 1699 | if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE))) |
| 1700 | mt7921_tx_check_aggr(sta, txwi); |
| 1701 | |
| 1702 | skb_pull(e->skb, headroom); |
| 1703 | mt76_tx_complete_skb(mdev, e->wcid, e->skb); |
| 1704 | } |
| 1705 | EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_complete_skb); |
| 1706 | |
| 1707 | bool mt7921_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) |
| 1708 | { |
| 1709 | struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| 1710 | |
| 1711 | mt7921_mutex_acquire(dev); |
| 1712 | mt7921_mac_sta_poll(dev); |
| 1713 | mt7921_mutex_release(dev); |
| 1714 | |
| 1715 | return false; |
| 1716 | } |
| 1717 | EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_status_data); |