1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2020 MediaTek Inc. */ 3 4 #include <linux/etherdevice.h> 5 #include <linux/timekeeping.h> 6 #include "coredump.h" 7 #include "mt7915.h" 8 #include "../dma.h" 9 #include "mac.h" 10 #include "mcu.h" 11 12 #define to_rssi(field, rcpi) ((FIELD_GET(field, rcpi) - 220) / 2) 13 14 static const struct mt7915_dfs_radar_spec etsi_radar_specs = { 15 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, 16 .radar_pattern = { 17 [5] = { 1, 0, 6, 32, 28, 0, 990, 5010, 17, 1, 1 }, 18 [6] = { 1, 0, 9, 32, 28, 0, 615, 5010, 27, 1, 1 }, 19 [7] = { 1, 0, 15, 32, 28, 0, 240, 445, 27, 1, 1 }, 20 [8] = { 1, 0, 12, 32, 28, 0, 240, 510, 42, 1, 1 }, 21 [9] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 12, 32, 28, { }, 126 }, 22 [10] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 15, 32, 24, { }, 126 }, 23 [11] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 18, 32, 28, { }, 54 }, 24 [12] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 27, 32, 24, { }, 54 }, 25 }, 26 }; 27 28 static const struct mt7915_dfs_radar_spec fcc_radar_specs = { 29 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, 30 .radar_pattern = { 31 [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, 32 [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, 33 [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, 34 [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, 35 [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, 36 }, 37 }; 38 39 static const struct mt7915_dfs_radar_spec jp_radar_specs = { 40 .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, 41 .radar_pattern = { 42 [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, 43 [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, 44 [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, 45 [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, 46 [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, 47 [13] = { 1, 0, 7, 32, 28, 0, 3836, 3856, 14, 1, 1 }, 48 [14] = { 1, 0, 6, 32, 28, 0, 615, 5010, 110, 1, 1 }, 49 [15] = { 1, 1, 0, 0, 0, 0, 15, 5010, 110, 0, 0, 12, 32, 28 }, 50 }, 51 }; 52 mt7915_rx_get_wcid(struct mt7915_dev * dev,u16 idx,bool unicast)53 static struct mt76_wcid *mt7915_rx_get_wcid(struct mt7915_dev *dev, 54 u16 idx, bool unicast) 55 { 56 struct mt7915_sta *sta; 57 struct mt76_wcid *wcid; 58 59 if (idx >= ARRAY_SIZE(dev->mt76.wcid)) 60 return NULL; 61 62 wcid = rcu_dereference(dev->mt76.wcid[idx]); 63 if (unicast || !wcid) 64 return wcid; 65 66 if (!wcid->sta) 67 return NULL; 68 69 sta = container_of(wcid, struct mt7915_sta, wcid); 70 if (!sta->vif) 71 return NULL; 72 73 return &sta->vif->sta.wcid; 74 } 75 mt7915_mac_wtbl_update(struct mt7915_dev * dev,int idx,u32 mask)76 bool mt7915_mac_wtbl_update(struct mt7915_dev *dev, int idx, u32 mask) 77 { 78 mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX, 79 FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask); 80 81 return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 82 0, 5000); 83 } 84 mt7915_mac_wtbl_lmac_addr(struct mt7915_dev * dev,u16 wcid,u8 dw)85 u32 mt7915_mac_wtbl_lmac_addr(struct mt7915_dev *dev, u16 wcid, u8 dw) 86 { 87 mt76_wr(dev, MT_WTBLON_TOP_WDUCR, 88 FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7))); 89 90 return MT_WTBL_LMAC_OFFS(wcid, dw); 91 } 92 mt7915_mac_sta_poll(struct mt7915_dev * dev)93 static void mt7915_mac_sta_poll(struct mt7915_dev *dev) 94 { 95 static const u8 ac_to_tid[] = { 96 [IEEE80211_AC_BE] = 0, 97 [IEEE80211_AC_BK] = 1, 98 [IEEE80211_AC_VI] = 4, 99 [IEEE80211_AC_VO] = 6 100 }; 101 struct ieee80211_sta *sta; 102 struct mt7915_sta *msta; 103 struct rate_info *rate; 104 u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; 105 LIST_HEAD(sta_poll_list); 106 int i; 107 108 spin_lock_bh(&dev->mt76.sta_poll_lock); 109 list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list); 110 spin_unlock_bh(&dev->mt76.sta_poll_lock); 111 112 rcu_read_lock(); 113 114 while (true) { 115 bool clear = false; 116 u32 addr, val; 117 u16 idx; 118 s8 rssi[4]; 119 u8 bw; 120 121 spin_lock_bh(&dev->mt76.sta_poll_lock); 122 if (list_empty(&sta_poll_list)) { 123 spin_unlock_bh(&dev->mt76.sta_poll_lock); 124 break; 125 } 126 msta = list_first_entry(&sta_poll_list, 127 struct mt7915_sta, wcid.poll_list); 128 list_del_init(&msta->wcid.poll_list); 129 spin_unlock_bh(&dev->mt76.sta_poll_lock); 130 131 idx = msta->wcid.idx; 132 133 /* refresh peer's airtime reporting */ 134 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 20); 135 136 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 137 u32 tx_last = msta->airtime_ac[i]; 138 u32 rx_last = msta->airtime_ac[i + 4]; 139 140 msta->airtime_ac[i] = mt76_rr(dev, addr); 141 msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4); 142 143 tx_time[i] = msta->airtime_ac[i] - tx_last; 144 rx_time[i] = msta->airtime_ac[i + 4] - rx_last; 145 146 if ((tx_last | rx_last) & BIT(30)) 147 clear = true; 148 149 addr += 8; 150 } 151 152 if (clear) { 153 mt7915_mac_wtbl_update(dev, idx, 154 MT_WTBL_UPDATE_ADM_COUNT_CLEAR); 155 memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac)); 156 } 157 158 if (!msta->wcid.sta) 159 continue; 160 161 sta = container_of((void *)msta, struct ieee80211_sta, 162 drv_priv); 163 for (i = 0; i < IEEE80211_NUM_ACS; i++) { 164 u8 queue = mt76_connac_lmac_mapping(i); 165 u32 tx_cur = tx_time[queue]; 166 u32 rx_cur = rx_time[queue]; 167 u8 tid = ac_to_tid[i]; 168 169 if (!tx_cur && !rx_cur) 170 continue; 171 172 ieee80211_sta_register_airtime(sta, tid, tx_cur, 173 rx_cur); 174 } 175 176 /* 177 * We don't support reading GI info from txs packets. 178 * For accurate tx status reporting and AQL improvement, 179 * we need to make sure that flags match so polling GI 180 * from per-sta counters directly. 181 */ 182 rate = &msta->wcid.rate; 183 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 7); 184 val = mt76_rr(dev, addr); 185 186 switch (rate->bw) { 187 case RATE_INFO_BW_160: 188 bw = IEEE80211_STA_RX_BW_160; 189 break; 190 case RATE_INFO_BW_80: 191 bw = IEEE80211_STA_RX_BW_80; 192 break; 193 case RATE_INFO_BW_40: 194 bw = IEEE80211_STA_RX_BW_40; 195 break; 196 default: 197 bw = IEEE80211_STA_RX_BW_20; 198 break; 199 } 200 201 if (rate->flags & RATE_INFO_FLAGS_HE_MCS) { 202 u8 offs = 24 + 2 * bw; 203 204 rate->he_gi = (val & (0x3 << offs)) >> offs; 205 } else if (rate->flags & 206 (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) { 207 if (val & BIT(12 + bw)) 208 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 209 else 210 rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI; 211 } 212 213 /* get signal strength of resp frames (CTS/BA/ACK) */ 214 addr = mt7915_mac_wtbl_lmac_addr(dev, idx, 30); 215 val = mt76_rr(dev, addr); 216 217 rssi[0] = to_rssi(GENMASK(7, 0), val); 218 rssi[1] = to_rssi(GENMASK(15, 8), val); 219 rssi[2] = to_rssi(GENMASK(23, 16), val); 220 rssi[3] = to_rssi(GENMASK(31, 14), val); 221 222 msta->ack_signal = 223 mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi); 224 225 ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal); 226 } 227 228 rcu_read_unlock(); 229 } 230 mt7915_mac_enable_rtscts(struct mt7915_dev * dev,struct ieee80211_vif * vif,bool enable)231 void mt7915_mac_enable_rtscts(struct mt7915_dev *dev, 232 struct ieee80211_vif *vif, bool enable) 233 { 234 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 235 u32 addr; 236 237 addr = mt7915_mac_wtbl_lmac_addr(dev, mvif->sta.wcid.idx, 5); 238 if (enable) 239 mt76_set(dev, addr, BIT(5)); 240 else 241 mt76_clear(dev, addr, BIT(5)); 242 } 243 244 static void mt7915_wed_check_ppe(struct mt7915_dev * dev,struct mt76_queue * q,struct mt7915_sta * msta,struct sk_buff * skb,u32 info)245 mt7915_wed_check_ppe(struct mt7915_dev *dev, struct mt76_queue *q, 246 struct mt7915_sta *msta, struct sk_buff *skb, 247 u32 info) 248 { 249 struct ieee80211_vif *vif; 250 struct wireless_dev *wdev; 251 252 if (!msta || !msta->vif) 253 return; 254 255 if (!mt76_queue_is_wed_rx(q)) 256 return; 257 258 if (!(info & MT_DMA_INFO_PPE_VLD)) 259 return; 260 261 vif = container_of((void *)msta->vif, struct ieee80211_vif, 262 drv_priv); 263 wdev = ieee80211_vif_to_wdev(vif); 264 skb->dev = wdev->netdev; 265 266 mtk_wed_device_ppe_check(&dev->mt76.mmio.wed, skb, 267 FIELD_GET(MT_DMA_PPE_CPU_REASON, info), 268 FIELD_GET(MT_DMA_PPE_ENTRY, info)); 269 } 270 271 static int mt7915_mac_fill_rx(struct mt7915_dev * dev,struct sk_buff * skb,enum mt76_rxq_id q,u32 * info)272 mt7915_mac_fill_rx(struct mt7915_dev *dev, struct sk_buff *skb, 273 enum mt76_rxq_id q, u32 *info) 274 { 275 struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; 276 struct mt76_phy *mphy = &dev->mt76.phy; 277 struct mt7915_phy *phy = &dev->phy; 278 struct ieee80211_supported_band *sband; 279 __le32 *rxd = (__le32 *)skb->data; 280 __le32 *rxv = NULL; 281 u32 rxd0 = le32_to_cpu(rxd[0]); 282 u32 rxd1 = le32_to_cpu(rxd[1]); 283 u32 rxd2 = le32_to_cpu(rxd[2]); 284 u32 rxd3 = le32_to_cpu(rxd[3]); 285 u32 rxd4 = le32_to_cpu(rxd[4]); 286 u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; 287 bool unicast, insert_ccmp_hdr = false; 288 u8 remove_pad, amsdu_info; 289 u8 mode = 0, qos_ctl = 0; 290 struct mt7915_sta *msta = NULL; 291 u32 csum_status = *(u32 *)skb->cb; 292 bool hdr_trans; 293 u16 hdr_gap; 294 u16 seq_ctrl = 0; 295 __le16 fc = 0; 296 int idx; 297 298 memset(status, 0, sizeof(*status)); 299 300 if ((rxd1 & MT_RXD1_NORMAL_BAND_IDX) && !phy->mt76->band_idx) { 301 mphy = dev->mt76.phys[MT_BAND1]; 302 if (!mphy) 303 return -EINVAL; 304 305 phy = mphy->priv; 306 status->phy_idx = 1; 307 } 308 309 if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) 310 return -EINVAL; 311 312 if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR) 313 return -EINVAL; 314 315 hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS; 316 if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM)) 317 return -EINVAL; 318 319 /* ICV error or CCMP/BIP/WPI MIC error */ 320 if (rxd1 & MT_RXD1_NORMAL_ICV_ERR) 321 status->flag |= RX_FLAG_ONLY_MONITOR; 322 323 unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; 324 idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); 325 status->wcid = mt7915_rx_get_wcid(dev, idx, unicast); 326 327 if (status->wcid) { 328 msta = container_of(status->wcid, struct mt7915_sta, wcid); 329 spin_lock_bh(&dev->mt76.sta_poll_lock); 330 if (list_empty(&msta->wcid.poll_list)) 331 list_add_tail(&msta->wcid.poll_list, 332 &dev->mt76.sta_poll_list); 333 spin_unlock_bh(&dev->mt76.sta_poll_lock); 334 } 335 336 status->freq = mphy->chandef.chan->center_freq; 337 status->band = mphy->chandef.chan->band; 338 if (status->band == NL80211_BAND_5GHZ) 339 sband = &mphy->sband_5g.sband; 340 else if (status->band == NL80211_BAND_6GHZ) 341 sband = &mphy->sband_6g.sband; 342 else 343 sband = &mphy->sband_2g.sband; 344 345 if (!sband->channels) 346 return -EINVAL; 347 348 if ((rxd0 & csum_mask) == csum_mask && 349 !(csum_status & (BIT(0) | BIT(2) | BIT(3)))) 350 skb->ip_summed = CHECKSUM_UNNECESSARY; 351 352 if (rxd1 & MT_RXD1_NORMAL_FCS_ERR) 353 status->flag |= RX_FLAG_FAILED_FCS_CRC; 354 355 if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR) 356 status->flag |= RX_FLAG_MMIC_ERROR; 357 358 if (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1) != 0 && 359 !(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) { 360 status->flag |= RX_FLAG_DECRYPTED; 361 status->flag |= RX_FLAG_IV_STRIPPED; 362 status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED; 363 } 364 365 remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2); 366 367 if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR) 368 return -EINVAL; 369 370 rxd += 6; 371 if (rxd1 & MT_RXD1_NORMAL_GROUP_4) { 372 u32 v0 = le32_to_cpu(rxd[0]); 373 u32 v2 = le32_to_cpu(rxd[2]); 374 375 fc = cpu_to_le16(FIELD_GET(MT_RXD6_FRAME_CONTROL, v0)); 376 qos_ctl = FIELD_GET(MT_RXD8_QOS_CTL, v2); 377 seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2); 378 379 rxd += 4; 380 if ((u8 *)rxd - skb->data >= skb->len) 381 return -EINVAL; 382 } 383 384 if (rxd1 & MT_RXD1_NORMAL_GROUP_1) { 385 u8 *data = (u8 *)rxd; 386 387 if (status->flag & RX_FLAG_DECRYPTED) { 388 switch (FIELD_GET(MT_RXD1_NORMAL_SEC_MODE, rxd1)) { 389 case MT_CIPHER_AES_CCMP: 390 case MT_CIPHER_CCMP_CCX: 391 case MT_CIPHER_CCMP_256: 392 insert_ccmp_hdr = 393 FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2); 394 fallthrough; 395 case MT_CIPHER_TKIP: 396 case MT_CIPHER_TKIP_NO_MIC: 397 case MT_CIPHER_GCMP: 398 case MT_CIPHER_GCMP_256: 399 status->iv[0] = data[5]; 400 status->iv[1] = data[4]; 401 status->iv[2] = data[3]; 402 status->iv[3] = data[2]; 403 status->iv[4] = data[1]; 404 status->iv[5] = data[0]; 405 break; 406 default: 407 break; 408 } 409 } 410 rxd += 4; 411 if ((u8 *)rxd - skb->data >= skb->len) 412 return -EINVAL; 413 } 414 415 if (rxd1 & MT_RXD1_NORMAL_GROUP_2) { 416 status->timestamp = le32_to_cpu(rxd[0]); 417 status->flag |= RX_FLAG_MACTIME_START; 418 419 if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) { 420 status->flag |= RX_FLAG_AMPDU_DETAILS; 421 422 /* all subframes of an A-MPDU have the same timestamp */ 423 if (phy->rx_ampdu_ts != status->timestamp) { 424 if (!++phy->ampdu_ref) 425 phy->ampdu_ref++; 426 } 427 phy->rx_ampdu_ts = status->timestamp; 428 429 status->ampdu_ref = phy->ampdu_ref; 430 } 431 432 rxd += 2; 433 if ((u8 *)rxd - skb->data >= skb->len) 434 return -EINVAL; 435 } 436 437 /* RXD Group 3 - P-RXV */ 438 if (rxd1 & MT_RXD1_NORMAL_GROUP_3) { 439 u32 v0, v1; 440 int ret; 441 442 rxv = rxd; 443 rxd += 2; 444 if ((u8 *)rxd - skb->data >= skb->len) 445 return -EINVAL; 446 447 v0 = le32_to_cpu(rxv[0]); 448 v1 = le32_to_cpu(rxv[1]); 449 450 if (v0 & MT_PRXV_HT_AD_CODE) 451 status->enc_flags |= RX_ENC_FLAG_LDPC; 452 453 status->chains = mphy->antenna_mask; 454 status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1); 455 status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1); 456 status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1); 457 status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1); 458 459 /* RXD Group 5 - C-RXV */ 460 if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { 461 rxd += 18; 462 if ((u8 *)rxd - skb->data >= skb->len) 463 return -EINVAL; 464 } 465 466 if (!is_mt7915(&dev->mt76) || (rxd1 & MT_RXD1_NORMAL_GROUP_5)) { 467 ret = mt76_connac2_mac_fill_rx_rate(&dev->mt76, status, 468 sband, rxv, &mode); 469 if (ret < 0) 470 return ret; 471 } 472 } 473 474 amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4); 475 status->amsdu = !!amsdu_info; 476 if (status->amsdu) { 477 status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME; 478 status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME; 479 } 480 481 hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad; 482 if (hdr_trans && ieee80211_has_morefrags(fc)) { 483 struct ieee80211_vif *vif; 484 int err; 485 486 if (!msta || !msta->vif) 487 return -EINVAL; 488 489 vif = container_of((void *)msta->vif, struct ieee80211_vif, 490 drv_priv); 491 err = mt76_connac2_reverse_frag0_hdr_trans(vif, skb, hdr_gap); 492 if (err) 493 return err; 494 495 hdr_trans = false; 496 } else { 497 int pad_start = 0; 498 499 skb_pull(skb, hdr_gap); 500 if (!hdr_trans && status->amsdu) { 501 pad_start = ieee80211_get_hdrlen_from_skb(skb); 502 } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) { 503 /* 504 * When header translation failure is indicated, 505 * the hardware will insert an extra 2-byte field 506 * containing the data length after the protocol 507 * type field. This happens either when the LLC-SNAP 508 * pattern did not match, or if a VLAN header was 509 * detected. 510 */ 511 pad_start = 12; 512 if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q) 513 pad_start += 4; 514 else 515 pad_start = 0; 516 } 517 518 if (pad_start) { 519 memmove(skb->data + 2, skb->data, pad_start); 520 skb_pull(skb, 2); 521 } 522 } 523 524 if (!hdr_trans) { 525 struct ieee80211_hdr *hdr; 526 527 if (insert_ccmp_hdr) { 528 u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1); 529 530 mt76_insert_ccmp_hdr(skb, key_id); 531 } 532 533 hdr = mt76_skb_get_hdr(skb); 534 fc = hdr->frame_control; 535 if (ieee80211_is_data_qos(fc)) { 536 seq_ctrl = le16_to_cpu(hdr->seq_ctrl); 537 qos_ctl = *ieee80211_get_qos_ctl(hdr); 538 } 539 } else { 540 status->flag |= RX_FLAG_8023; 541 mt7915_wed_check_ppe(dev, &dev->mt76.q_rx[q], msta, skb, 542 *info); 543 } 544 545 if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023)) 546 mt76_connac2_mac_decode_he_radiotap(&dev->mt76, skb, rxv, mode); 547 548 if (!status->wcid || !ieee80211_is_data_qos(fc)) 549 return 0; 550 551 status->aggr = unicast && 552 !ieee80211_is_qos_nullfunc(fc); 553 status->qos_ctl = qos_ctl; 554 status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); 555 556 return 0; 557 } 558 559 static void mt7915_mac_fill_rx_vector(struct mt7915_dev * dev,struct sk_buff * skb)560 mt7915_mac_fill_rx_vector(struct mt7915_dev *dev, struct sk_buff *skb) 561 { 562 #ifdef CONFIG_NL80211_TESTMODE 563 struct mt7915_phy *phy = &dev->phy; 564 __le32 *rxd = (__le32 *)skb->data; 565 __le32 *rxv_hdr = rxd + 2; 566 __le32 *rxv = rxd + 4; 567 u32 rcpi, ib_rssi, wb_rssi, v20, v21; 568 u8 band_idx; 569 s32 foe; 570 u8 snr; 571 int i; 572 573 band_idx = le32_get_bits(rxv_hdr[1], MT_RXV_HDR_BAND_IDX); 574 if (band_idx && !phy->mt76->band_idx) { 575 phy = mt7915_ext_phy(dev); 576 if (!phy) 577 goto out; 578 } 579 580 rcpi = le32_to_cpu(rxv[6]); 581 ib_rssi = le32_to_cpu(rxv[7]); 582 wb_rssi = le32_to_cpu(rxv[8]) >> 5; 583 584 for (i = 0; i < 4; i++, rcpi >>= 8, ib_rssi >>= 8, wb_rssi >>= 9) { 585 if (i == 3) 586 wb_rssi = le32_to_cpu(rxv[9]); 587 588 phy->test.last_rcpi[i] = rcpi & 0xff; 589 phy->test.last_ib_rssi[i] = ib_rssi & 0xff; 590 phy->test.last_wb_rssi[i] = wb_rssi & 0xff; 591 } 592 593 v20 = le32_to_cpu(rxv[20]); 594 v21 = le32_to_cpu(rxv[21]); 595 596 foe = FIELD_GET(MT_CRXV_FOE_LO, v20) | 597 (FIELD_GET(MT_CRXV_FOE_HI, v21) << MT_CRXV_FOE_SHIFT); 598 599 snr = FIELD_GET(MT_CRXV_SNR, v20) - 16; 600 601 phy->test.last_freq_offset = foe; 602 phy->test.last_snr = snr; 603 out: 604 #endif 605 dev_kfree_skb(skb); 606 } 607 608 static void mt7915_mac_write_txwi_tm(struct mt7915_phy * phy,__le32 * txwi,struct sk_buff * skb)609 mt7915_mac_write_txwi_tm(struct mt7915_phy *phy, __le32 *txwi, 610 struct sk_buff *skb) 611 { 612 #ifdef CONFIG_NL80211_TESTMODE 613 struct mt76_testmode_data *td = &phy->mt76->test; 614 const struct ieee80211_rate *r; 615 u8 bw, mode, nss = td->tx_rate_nss; 616 u8 rate_idx = td->tx_rate_idx; 617 u16 rateval = 0; 618 u32 val; 619 bool cck = false; 620 int band; 621 622 if (skb != phy->mt76->test.tx_skb) 623 return; 624 625 switch (td->tx_rate_mode) { 626 case MT76_TM_TX_MODE_HT: 627 nss = 1 + (rate_idx >> 3); 628 mode = MT_PHY_TYPE_HT; 629 break; 630 case MT76_TM_TX_MODE_VHT: 631 mode = MT_PHY_TYPE_VHT; 632 break; 633 case MT76_TM_TX_MODE_HE_SU: 634 mode = MT_PHY_TYPE_HE_SU; 635 break; 636 case MT76_TM_TX_MODE_HE_EXT_SU: 637 mode = MT_PHY_TYPE_HE_EXT_SU; 638 break; 639 case MT76_TM_TX_MODE_HE_TB: 640 mode = MT_PHY_TYPE_HE_TB; 641 break; 642 case MT76_TM_TX_MODE_HE_MU: 643 mode = MT_PHY_TYPE_HE_MU; 644 break; 645 case MT76_TM_TX_MODE_CCK: 646 cck = true; 647 fallthrough; 648 case MT76_TM_TX_MODE_OFDM: 649 band = phy->mt76->chandef.chan->band; 650 if (band == NL80211_BAND_2GHZ && !cck) 651 rate_idx += 4; 652 653 r = &phy->mt76->hw->wiphy->bands[band]->bitrates[rate_idx]; 654 val = cck ? r->hw_value_short : r->hw_value; 655 656 mode = val >> 8; 657 rate_idx = val & 0xff; 658 break; 659 default: 660 mode = MT_PHY_TYPE_OFDM; 661 break; 662 } 663 664 switch (phy->mt76->chandef.width) { 665 case NL80211_CHAN_WIDTH_40: 666 bw = 1; 667 break; 668 case NL80211_CHAN_WIDTH_80: 669 bw = 2; 670 break; 671 case NL80211_CHAN_WIDTH_80P80: 672 case NL80211_CHAN_WIDTH_160: 673 bw = 3; 674 break; 675 default: 676 bw = 0; 677 break; 678 } 679 680 if (td->tx_rate_stbc && nss == 1) { 681 nss++; 682 rateval |= MT_TX_RATE_STBC; 683 } 684 685 rateval |= FIELD_PREP(MT_TX_RATE_IDX, rate_idx) | 686 FIELD_PREP(MT_TX_RATE_MODE, mode) | 687 FIELD_PREP(MT_TX_RATE_NSS, nss - 1); 688 689 txwi[2] |= cpu_to_le32(MT_TXD2_FIX_RATE); 690 691 le32p_replace_bits(&txwi[3], 1, MT_TXD3_REM_TX_COUNT); 692 if (td->tx_rate_mode < MT76_TM_TX_MODE_HT) 693 txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); 694 695 val = MT_TXD6_FIXED_BW | 696 FIELD_PREP(MT_TXD6_BW, bw) | 697 FIELD_PREP(MT_TXD6_TX_RATE, rateval) | 698 FIELD_PREP(MT_TXD6_SGI, td->tx_rate_sgi); 699 700 /* for HE_SU/HE_EXT_SU PPDU 701 * - 1x, 2x, 4x LTF + 0.8us GI 702 * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI 703 * for HE_MU PPDU 704 * - 2x, 4x LTF + 0.8us GI 705 * - 2x LTF + 1.6us GI, 4x LTF + 3.2us GI 706 * for HE_TB PPDU 707 * - 1x, 2x LTF + 1.6us GI 708 * - 4x LTF + 3.2us GI 709 */ 710 if (mode >= MT_PHY_TYPE_HE_SU) 711 val |= FIELD_PREP(MT_TXD6_HELTF, td->tx_ltf); 712 713 if (td->tx_rate_ldpc || (bw > 0 && mode >= MT_PHY_TYPE_HE_SU)) 714 val |= MT_TXD6_LDPC; 715 716 txwi[3] &= ~cpu_to_le32(MT_TXD3_SN_VALID); 717 txwi[6] |= cpu_to_le32(val); 718 txwi[7] |= cpu_to_le32(FIELD_PREP(MT_TXD7_SPE_IDX, 719 phy->test.spe_idx)); 720 #endif 721 } 722 mt7915_mac_write_txwi(struct mt76_dev * dev,__le32 * txwi,struct sk_buff * skb,struct mt76_wcid * wcid,int pid,struct ieee80211_key_conf * key,enum mt76_txq_id qid,u32 changed)723 void mt7915_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi, 724 struct sk_buff *skb, struct mt76_wcid *wcid, int pid, 725 struct ieee80211_key_conf *key, 726 enum mt76_txq_id qid, u32 changed) 727 { 728 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 729 u8 phy_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2; 730 struct mt76_phy *mphy = &dev->phy; 731 732 if (phy_idx && dev->phys[MT_BAND1]) 733 mphy = dev->phys[MT_BAND1]; 734 735 mt76_connac2_mac_write_txwi(dev, txwi, skb, wcid, key, pid, qid, changed); 736 737 if (mt76_testmode_enabled(mphy)) 738 mt7915_mac_write_txwi_tm(mphy->priv, txwi, skb); 739 } 740 mt7915_tx_prepare_skb(struct mt76_dev * mdev,void * txwi_ptr,enum mt76_txq_id qid,struct mt76_wcid * wcid,struct ieee80211_sta * sta,struct mt76_tx_info * tx_info)741 int mt7915_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, 742 enum mt76_txq_id qid, struct mt76_wcid *wcid, 743 struct ieee80211_sta *sta, 744 struct mt76_tx_info *tx_info) 745 { 746 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data; 747 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); 748 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); 749 struct ieee80211_key_conf *key = info->control.hw_key; 750 struct ieee80211_vif *vif = info->control.vif; 751 struct mt76_connac_fw_txp *txp; 752 struct mt76_txwi_cache *t; 753 int id, i, nbuf = tx_info->nbuf - 1; 754 u8 *txwi = (u8 *)txwi_ptr; 755 int pid; 756 757 if (unlikely(tx_info->skb->len <= ETH_HLEN)) 758 return -EINVAL; 759 760 if (!wcid) 761 wcid = &dev->mt76.global_wcid; 762 763 if (sta) { 764 struct mt7915_sta *msta; 765 766 msta = (struct mt7915_sta *)sta->drv_priv; 767 768 if (time_after(jiffies, msta->jiffies + HZ / 4)) { 769 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 770 msta->jiffies = jiffies; 771 } 772 } 773 774 t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size); 775 t->skb = tx_info->skb; 776 777 id = mt76_token_consume(mdev, &t); 778 if (id < 0) 779 return id; 780 781 pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); 782 mt7915_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, pid, key, 783 qid, 0); 784 785 txp = (struct mt76_connac_fw_txp *)(txwi + MT_TXD_SIZE); 786 for (i = 0; i < nbuf; i++) { 787 txp->buf[i] = cpu_to_le32(tx_info->buf[i + 1].addr); 788 txp->len[i] = cpu_to_le16(tx_info->buf[i + 1].len); 789 } 790 txp->nbuf = nbuf; 791 792 txp->flags = cpu_to_le16(MT_CT_INFO_APPLY_TXD | MT_CT_INFO_FROM_HOST); 793 794 if (!key) 795 txp->flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME); 796 797 if (!(info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP) && 798 ieee80211_is_mgmt(hdr->frame_control)) 799 txp->flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME); 800 801 if (vif) { 802 struct mt7915_vif *mvif = (struct mt7915_vif *)vif->drv_priv; 803 804 txp->bss_idx = mvif->mt76.idx; 805 } 806 807 txp->token = cpu_to_le16(id); 808 if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags)) 809 txp->rept_wds_wcid = cpu_to_le16(wcid->idx); 810 else 811 txp->rept_wds_wcid = cpu_to_le16(0x3ff); 812 tx_info->skb = NULL; 813 814 /* pass partial skb header to fw */ 815 tx_info->buf[1].len = MT_CT_PARSE_LEN; 816 tx_info->buf[1].skip_unmap = true; 817 tx_info->nbuf = MT_CT_DMA_BUF_NUM; 818 819 return 0; 820 } 821 mt7915_wed_init_buf(void * ptr,dma_addr_t phys,int token_id)822 u32 mt7915_wed_init_buf(void *ptr, dma_addr_t phys, int token_id) 823 { 824 struct mt76_connac_fw_txp *txp = ptr + MT_TXD_SIZE; 825 __le32 *txwi = ptr; 826 u32 val; 827 828 memset(ptr, 0, MT_TXD_SIZE + sizeof(*txp)); 829 830 val = FIELD_PREP(MT_TXD0_TX_BYTES, MT_TXD_SIZE) | 831 FIELD_PREP(MT_TXD0_PKT_FMT, MT_TX_TYPE_CT); 832 txwi[0] = cpu_to_le32(val); 833 834 val = MT_TXD1_LONG_FORMAT | 835 FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3); 836 txwi[1] = cpu_to_le32(val); 837 838 txp->token = cpu_to_le16(token_id); 839 txp->nbuf = 1; 840 txp->buf[0] = cpu_to_le32(phys + MT_TXD_SIZE + sizeof(*txp)); 841 842 return MT_TXD_SIZE + sizeof(*txp); 843 } 844 845 static void mt7915_mac_tx_free_prepare(struct mt7915_dev * dev)846 mt7915_mac_tx_free_prepare(struct mt7915_dev *dev) 847 { 848 struct mt76_dev *mdev = &dev->mt76; 849 struct mt76_phy *mphy_ext = mdev->phys[MT_BAND1]; 850 851 /* clean DMA queues and unmap buffers first */ 852 mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false); 853 mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false); 854 if (mphy_ext) { 855 mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_PSD], false); 856 mt76_queue_tx_cleanup(dev, mphy_ext->q_tx[MT_TXQ_BE], false); 857 } 858 } 859 860 static void mt7915_mac_tx_free_done(struct mt7915_dev * dev,struct list_head * free_list,bool wake)861 mt7915_mac_tx_free_done(struct mt7915_dev *dev, 862 struct list_head *free_list, bool wake) 863 { 864 struct sk_buff *skb, *tmp; 865 866 mt7915_mac_sta_poll(dev); 867 868 if (wake) 869 mt76_set_tx_blocked(&dev->mt76, false); 870 871 mt76_worker_schedule(&dev->mt76.tx_worker); 872 873 list_for_each_entry_safe(skb, tmp, free_list, list) { 874 skb_list_del_init(skb); 875 napi_consume_skb(skb, 1); 876 } 877 } 878 879 static void mt7915_mac_tx_free(struct mt7915_dev * dev,void * data,int len)880 mt7915_mac_tx_free(struct mt7915_dev *dev, void *data, int len) 881 { 882 struct mt76_connac_tx_free *free = data; 883 __le32 *tx_info = (__le32 *)(data + sizeof(*free)); 884 struct mt76_dev *mdev = &dev->mt76; 885 struct mt76_txwi_cache *txwi; 886 struct ieee80211_sta *sta = NULL; 887 struct mt76_wcid *wcid = NULL; 888 LIST_HEAD(free_list); 889 void *end = data + len; 890 bool v3, wake = false; 891 u16 total, count = 0; 892 u32 txd = le32_to_cpu(free->txd); 893 __le32 *cur_info; 894 895 mt7915_mac_tx_free_prepare(dev); 896 897 total = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT); 898 v3 = (FIELD_GET(MT_TX_FREE_VER, txd) == 0x4); 899 900 for (cur_info = tx_info; count < total; cur_info++) { 901 u32 msdu, info; 902 u8 i; 903 904 if (WARN_ON_ONCE((void *)cur_info >= end)) 905 return; 906 907 /* 908 * 1'b1: new wcid pair. 909 * 1'b0: msdu_id with the same 'wcid pair' as above. 910 */ 911 info = le32_to_cpu(*cur_info); 912 if (info & MT_TX_FREE_PAIR) { 913 struct mt7915_sta *msta; 914 u16 idx; 915 916 idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); 917 wcid = rcu_dereference(dev->mt76.wcid[idx]); 918 sta = wcid_to_sta(wcid); 919 if (!sta) 920 continue; 921 922 msta = container_of(wcid, struct mt7915_sta, wcid); 923 spin_lock_bh(&mdev->sta_poll_lock); 924 if (list_empty(&msta->wcid.poll_list)) 925 list_add_tail(&msta->wcid.poll_list, 926 &mdev->sta_poll_list); 927 spin_unlock_bh(&mdev->sta_poll_lock); 928 continue; 929 } 930 931 if (!mtk_wed_device_active(&mdev->mmio.wed) && wcid) { 932 u32 tx_retries = 0, tx_failed = 0; 933 934 if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3)) { 935 tx_retries = 936 FIELD_GET(MT_TX_FREE_COUNT_V3, info) - 1; 937 tx_failed = tx_retries + 938 !!FIELD_GET(MT_TX_FREE_STAT_V3, info); 939 } else if (!v3 && (info & MT_TX_FREE_MPDU_HEADER)) { 940 tx_retries = 941 FIELD_GET(MT_TX_FREE_COUNT, info) - 1; 942 tx_failed = tx_retries + 943 !!FIELD_GET(MT_TX_FREE_STAT, info); 944 } 945 wcid->stats.tx_retries += tx_retries; 946 wcid->stats.tx_failed += tx_failed; 947 } 948 949 if (v3 && (info & MT_TX_FREE_MPDU_HEADER_V3)) 950 continue; 951 952 for (i = 0; i < 1 + v3; i++) { 953 if (v3) { 954 msdu = (info >> (15 * i)) & MT_TX_FREE_MSDU_ID_V3; 955 if (msdu == MT_TX_FREE_MSDU_ID_V3) 956 continue; 957 } else { 958 msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); 959 } 960 count++; 961 txwi = mt76_token_release(mdev, msdu, &wake); 962 if (!txwi) 963 continue; 964 965 mt76_connac2_txwi_free(mdev, txwi, sta, &free_list); 966 } 967 } 968 969 mt7915_mac_tx_free_done(dev, &free_list, wake); 970 } 971 972 static void mt7915_mac_tx_free_v0(struct mt7915_dev * dev,void * data,int len)973 mt7915_mac_tx_free_v0(struct mt7915_dev *dev, void *data, int len) 974 { 975 struct mt76_connac_tx_free *free = data; 976 __le16 *info = (__le16 *)(data + sizeof(*free)); 977 struct mt76_dev *mdev = &dev->mt76; 978 void *end = data + len; 979 LIST_HEAD(free_list); 980 bool wake = false; 981 u8 i, count; 982 983 mt7915_mac_tx_free_prepare(dev); 984 985 count = FIELD_GET(MT_TX_FREE_MSDU_CNT_V0, le16_to_cpu(free->ctrl)); 986 if (WARN_ON_ONCE((void *)&info[count] > end)) 987 return; 988 989 for (i = 0; i < count; i++) { 990 struct mt76_txwi_cache *txwi; 991 u16 msdu = le16_to_cpu(info[i]); 992 993 txwi = mt76_token_release(mdev, msdu, &wake); 994 if (!txwi) 995 continue; 996 997 mt76_connac2_txwi_free(mdev, txwi, NULL, &free_list); 998 } 999 1000 mt7915_mac_tx_free_done(dev, &free_list, wake); 1001 } 1002 mt7915_mac_add_txs(struct mt7915_dev * dev,void * data)1003 static void mt7915_mac_add_txs(struct mt7915_dev *dev, void *data) 1004 { 1005 struct mt7915_sta *msta = NULL; 1006 struct mt76_wcid *wcid; 1007 __le32 *txs_data = data; 1008 u16 wcidx; 1009 u8 pid; 1010 1011 wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID); 1012 pid = le32_get_bits(txs_data[3], MT_TXS3_PID); 1013 1014 if (pid < MT_PACKET_ID_WED) 1015 return; 1016 1017 if (wcidx >= mt7915_wtbl_size(dev)) 1018 return; 1019 1020 rcu_read_lock(); 1021 1022 wcid = rcu_dereference(dev->mt76.wcid[wcidx]); 1023 if (!wcid) 1024 goto out; 1025 1026 msta = container_of(wcid, struct mt7915_sta, wcid); 1027 1028 if (pid == MT_PACKET_ID_WED) 1029 mt76_connac2_mac_fill_txs(&dev->mt76, wcid, txs_data); 1030 else 1031 mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); 1032 1033 if (!wcid->sta) 1034 goto out; 1035 1036 spin_lock_bh(&dev->mt76.sta_poll_lock); 1037 if (list_empty(&msta->wcid.poll_list)) 1038 list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list); 1039 spin_unlock_bh(&dev->mt76.sta_poll_lock); 1040 1041 out: 1042 rcu_read_unlock(); 1043 } 1044 mt7915_rx_check(struct mt76_dev * mdev,void * data,int len)1045 bool mt7915_rx_check(struct mt76_dev *mdev, void *data, int len) 1046 { 1047 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); 1048 __le32 *rxd = (__le32 *)data; 1049 __le32 *end = (__le32 *)&rxd[len / 4]; 1050 enum rx_pkt_type type; 1051 1052 type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); 1053 1054 switch (type) { 1055 case PKT_TYPE_TXRX_NOTIFY: 1056 mt7915_mac_tx_free(dev, data, len); 1057 return false; 1058 case PKT_TYPE_TXRX_NOTIFY_V0: 1059 mt7915_mac_tx_free_v0(dev, data, len); 1060 return false; 1061 case PKT_TYPE_TXS: 1062 for (rxd += 2; rxd + 8 <= end; rxd += 8) 1063 mt7915_mac_add_txs(dev, rxd); 1064 return false; 1065 case PKT_TYPE_RX_FW_MONITOR: 1066 mt7915_debugfs_rx_fw_monitor(dev, data, len); 1067 return false; 1068 default: 1069 return true; 1070 } 1071 } 1072 mt7915_queue_rx_skb(struct mt76_dev * mdev,enum mt76_rxq_id q,struct sk_buff * skb,u32 * info)1073 void mt7915_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 1074 struct sk_buff *skb, u32 *info) 1075 { 1076 struct mt7915_dev *dev = container_of(mdev, struct mt7915_dev, mt76); 1077 __le32 *rxd = (__le32 *)skb->data; 1078 __le32 *end = (__le32 *)&skb->data[skb->len]; 1079 enum rx_pkt_type type; 1080 1081 type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); 1082 1083 switch (type) { 1084 case PKT_TYPE_TXRX_NOTIFY: 1085 mt7915_mac_tx_free(dev, skb->data, skb->len); 1086 napi_consume_skb(skb, 1); 1087 break; 1088 case PKT_TYPE_TXRX_NOTIFY_V0: 1089 mt7915_mac_tx_free_v0(dev, skb->data, skb->len); 1090 napi_consume_skb(skb, 1); 1091 break; 1092 case PKT_TYPE_RX_EVENT: 1093 mt7915_mcu_rx_event(dev, skb); 1094 break; 1095 case PKT_TYPE_TXRXV: 1096 mt7915_mac_fill_rx_vector(dev, skb); 1097 break; 1098 case PKT_TYPE_TXS: 1099 for (rxd += 2; rxd + 8 <= end; rxd += 8) 1100 mt7915_mac_add_txs(dev, rxd); 1101 dev_kfree_skb(skb); 1102 break; 1103 case PKT_TYPE_RX_FW_MONITOR: 1104 mt7915_debugfs_rx_fw_monitor(dev, skb->data, skb->len); 1105 dev_kfree_skb(skb); 1106 break; 1107 case PKT_TYPE_NORMAL: 1108 if (!mt7915_mac_fill_rx(dev, skb, q, info)) { 1109 mt76_rx(&dev->mt76, q, skb); 1110 return; 1111 } 1112 fallthrough; 1113 default: 1114 dev_kfree_skb(skb); 1115 break; 1116 } 1117 } 1118 mt7915_mac_cca_stats_reset(struct mt7915_phy * phy)1119 void mt7915_mac_cca_stats_reset(struct mt7915_phy *phy) 1120 { 1121 struct mt7915_dev *dev = phy->dev; 1122 u32 reg = MT_WF_PHY_RX_CTRL1(phy->mt76->band_idx); 1123 1124 mt76_clear(dev, reg, MT_WF_PHY_RX_CTRL1_STSCNT_EN); 1125 mt76_set(dev, reg, BIT(11) | BIT(9)); 1126 } 1127 mt7915_mac_reset_counters(struct mt7915_phy * phy)1128 void mt7915_mac_reset_counters(struct mt7915_phy *phy) 1129 { 1130 struct mt7915_dev *dev = phy->dev; 1131 int i; 1132 1133 for (i = 0; i < 4; i++) { 1134 mt76_rr(dev, MT_TX_AGG_CNT(phy->mt76->band_idx, i)); 1135 mt76_rr(dev, MT_TX_AGG_CNT2(phy->mt76->band_idx, i)); 1136 } 1137 1138 phy->mt76->survey_time = ktime_get_boottime(); 1139 memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats)); 1140 1141 /* reset airtime counters */ 1142 mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(phy->mt76->band_idx), 1143 MT_WF_RMAC_MIB_RXTIME_CLR); 1144 1145 mt7915_mcu_get_chan_mib_info(phy, true); 1146 } 1147 mt7915_mac_set_timing(struct mt7915_phy * phy)1148 void mt7915_mac_set_timing(struct mt7915_phy *phy) 1149 { 1150 s16 coverage_class = phy->coverage_class; 1151 struct mt7915_dev *dev = phy->dev; 1152 struct mt7915_phy *ext_phy = mt7915_ext_phy(dev); 1153 u32 val, reg_offset; 1154 u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) | 1155 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48); 1156 u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) | 1157 FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28); 1158 u8 band = phy->mt76->band_idx; 1159 int eifs_ofdm = 360, sifs = 10, offset; 1160 bool a_band = !(phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ); 1161 1162 if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) 1163 return; 1164 1165 if (ext_phy) 1166 coverage_class = max_t(s16, dev->phy.coverage_class, 1167 ext_phy->coverage_class); 1168 1169 mt76_set(dev, MT_ARB_SCR(band), 1170 MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); 1171 udelay(1); 1172 1173 offset = 3 * coverage_class; 1174 reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) | 1175 FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset); 1176 1177 if (!is_mt7915(&dev->mt76)) { 1178 if (!a_band) { 1179 mt76_wr(dev, MT_TMAC_ICR1(band), 1180 FIELD_PREP(MT_IFS_EIFS_CCK, 314)); 1181 eifs_ofdm = 78; 1182 } else { 1183 eifs_ofdm = 84; 1184 } 1185 } else if (a_band) { 1186 sifs = 16; 1187 } 1188 1189 mt76_wr(dev, MT_TMAC_CDTR(band), cck + reg_offset); 1190 mt76_wr(dev, MT_TMAC_ODTR(band), ofdm + reg_offset); 1191 mt76_wr(dev, MT_TMAC_ICR0(band), 1192 FIELD_PREP(MT_IFS_EIFS_OFDM, eifs_ofdm) | 1193 FIELD_PREP(MT_IFS_RIFS, 2) | 1194 FIELD_PREP(MT_IFS_SIFS, sifs) | 1195 FIELD_PREP(MT_IFS_SLOT, phy->slottime)); 1196 1197 if (phy->slottime < 20 || a_band) 1198 val = MT7915_CFEND_RATE_DEFAULT; 1199 else 1200 val = MT7915_CFEND_RATE_11B; 1201 1202 mt76_rmw_field(dev, MT_AGG_ACR0(band), MT_AGG_ACR_CFEND_RATE, val); 1203 mt76_clear(dev, MT_ARB_SCR(band), 1204 MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); 1205 } 1206 mt7915_mac_enable_nf(struct mt7915_dev * dev,bool band)1207 void mt7915_mac_enable_nf(struct mt7915_dev *dev, bool band) 1208 { 1209 u32 reg; 1210 1211 reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RXTD12(band) : 1212 MT_WF_PHY_RXTD12_MT7916(band); 1213 mt76_set(dev, reg, 1214 MT_WF_PHY_RXTD12_IRPI_SW_CLR_ONLY | 1215 MT_WF_PHY_RXTD12_IRPI_SW_CLR); 1216 1217 reg = is_mt7915(&dev->mt76) ? MT_WF_PHY_RX_CTRL1(band) : 1218 MT_WF_PHY_RX_CTRL1_MT7916(band); 1219 mt76_set(dev, reg, FIELD_PREP(MT_WF_PHY_RX_CTRL1_IPI_EN, 0x5)); 1220 } 1221 1222 static u8 mt7915_phy_get_nf(struct mt7915_phy * phy,int idx)1223 mt7915_phy_get_nf(struct mt7915_phy *phy, int idx) 1224 { 1225 static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 }; 1226 struct mt7915_dev *dev = phy->dev; 1227 u32 val, sum = 0, n = 0; 1228 int nss, i; 1229 1230 for (nss = 0; nss < hweight8(phy->mt76->chainmask); nss++) { 1231 u32 reg = is_mt7915(&dev->mt76) ? 1232 MT_WF_IRPI_NSS(0, nss + (idx << dev->dbdc_support)) : 1233 MT_WF_IRPI_NSS_MT7916(idx, nss); 1234 1235 for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) { 1236 val = mt76_rr(dev, reg); 1237 sum += val * nf_power[i]; 1238 n += val; 1239 } 1240 } 1241 1242 if (!n) 1243 return 0; 1244 1245 return sum / n; 1246 } 1247 mt7915_update_channel(struct mt76_phy * mphy)1248 void mt7915_update_channel(struct mt76_phy *mphy) 1249 { 1250 struct mt7915_phy *phy = (struct mt7915_phy *)mphy->priv; 1251 struct mt76_channel_state *state = mphy->chan_state; 1252 int nf; 1253 1254 mt7915_mcu_get_chan_mib_info(phy, false); 1255 1256 nf = mt7915_phy_get_nf(phy, phy->mt76->band_idx); 1257 if (!phy->noise) 1258 phy->noise = nf << 4; 1259 else if (nf) 1260 phy->noise += nf - (phy->noise >> 4); 1261 1262 state->noise = -(phy->noise >> 4); 1263 } 1264 1265 static bool mt7915_wait_reset_state(struct mt7915_dev * dev,u32 state)1266 mt7915_wait_reset_state(struct mt7915_dev *dev, u32 state) 1267 { 1268 bool ret; 1269 1270 ret = wait_event_timeout(dev->reset_wait, 1271 (READ_ONCE(dev->recovery.state) & state), 1272 MT7915_RESET_TIMEOUT); 1273 1274 WARN(!ret, "Timeout waiting for MCU reset state %x\n", state); 1275 return ret; 1276 } 1277 1278 static void mt7915_update_vif_beacon(void * priv,u8 * mac,struct ieee80211_vif * vif)1279 mt7915_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif) 1280 { 1281 struct ieee80211_hw *hw = priv; 1282 1283 switch (vif->type) { 1284 case NL80211_IFTYPE_MESH_POINT: 1285 case NL80211_IFTYPE_ADHOC: 1286 case NL80211_IFTYPE_AP: 1287 mt7915_mcu_add_beacon(hw, vif, vif->bss_conf.enable_beacon, 1288 BSS_CHANGED_BEACON_ENABLED); 1289 break; 1290 default: 1291 break; 1292 } 1293 } 1294 1295 static void mt7915_update_beacons(struct mt7915_dev * dev)1296 mt7915_update_beacons(struct mt7915_dev *dev) 1297 { 1298 struct mt76_phy *mphy_ext = dev->mt76.phys[MT_BAND1]; 1299 1300 ieee80211_iterate_active_interfaces(dev->mt76.hw, 1301 IEEE80211_IFACE_ITER_RESUME_ALL, 1302 mt7915_update_vif_beacon, dev->mt76.hw); 1303 1304 if (!mphy_ext) 1305 return; 1306 1307 ieee80211_iterate_active_interfaces(mphy_ext->hw, 1308 IEEE80211_IFACE_ITER_RESUME_ALL, 1309 mt7915_update_vif_beacon, mphy_ext->hw); 1310 } 1311 1312 static int mt7915_mac_restart(struct mt7915_dev * dev)1313 mt7915_mac_restart(struct mt7915_dev *dev) 1314 { 1315 struct mt7915_phy *phy2; 1316 struct mt76_phy *ext_phy; 1317 struct mt76_dev *mdev = &dev->mt76; 1318 int i, ret; 1319 1320 ext_phy = dev->mt76.phys[MT_BAND1]; 1321 phy2 = ext_phy ? ext_phy->priv : NULL; 1322 1323 if (dev->hif2) { 1324 mt76_wr(dev, MT_INT1_MASK_CSR, 0x0); 1325 mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0); 1326 } 1327 1328 if (dev_is_pci(mdev->dev)) { 1329 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0); 1330 if (dev->hif2) { 1331 if (is_mt7915(mdev)) 1332 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0x0); 1333 else 1334 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0x0); 1335 } 1336 } 1337 1338 set_bit(MT76_RESET, &dev->mphy.state); 1339 set_bit(MT76_MCU_RESET, &dev->mphy.state); 1340 wake_up(&dev->mt76.mcu.wait); 1341 if (ext_phy) { 1342 set_bit(MT76_RESET, &ext_phy->state); 1343 set_bit(MT76_MCU_RESET, &ext_phy->state); 1344 } 1345 1346 /* lock/unlock all queues to ensure that no tx is pending */ 1347 mt76_txq_schedule_all(&dev->mphy); 1348 if (ext_phy) 1349 mt76_txq_schedule_all(ext_phy); 1350 1351 /* disable all tx/rx napi */ 1352 mt76_worker_disable(&dev->mt76.tx_worker); 1353 mt76_for_each_q_rx(mdev, i) { 1354 if (mdev->q_rx[i].ndesc) 1355 napi_disable(&dev->mt76.napi[i]); 1356 } 1357 napi_disable(&dev->mt76.tx_napi); 1358 1359 /* token reinit */ 1360 mt76_connac2_tx_token_put(&dev->mt76); 1361 idr_init(&dev->mt76.token); 1362 1363 mt7915_dma_reset(dev, true); 1364 1365 local_bh_disable(); 1366 mt76_for_each_q_rx(mdev, i) { 1367 if (mdev->q_rx[i].ndesc) { 1368 napi_enable(&dev->mt76.napi[i]); 1369 napi_schedule(&dev->mt76.napi[i]); 1370 } 1371 } 1372 local_bh_enable(); 1373 clear_bit(MT76_MCU_RESET, &dev->mphy.state); 1374 clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); 1375 1376 mt76_wr(dev, MT_INT_MASK_CSR, dev->mt76.mmio.irqmask); 1377 mt76_wr(dev, MT_INT_SOURCE_CSR, ~0); 1378 1379 if (dev->hif2) { 1380 mt76_wr(dev, MT_INT1_MASK_CSR, dev->mt76.mmio.irqmask); 1381 mt76_wr(dev, MT_INT1_SOURCE_CSR, ~0); 1382 } 1383 if (dev_is_pci(mdev->dev)) { 1384 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); 1385 if (dev->hif2) { 1386 mt76_wr(dev, MT_PCIE_RECOG_ID, 1387 dev->hif2->index | MT_PCIE_RECOG_ID_SEM); 1388 if (is_mt7915(mdev)) 1389 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE, 0xff); 1390 else 1391 mt76_wr(dev, MT_PCIE1_MAC_INT_ENABLE_MT7916, 0xff); 1392 } 1393 } 1394 1395 /* load firmware */ 1396 ret = mt7915_mcu_init_firmware(dev); 1397 if (ret) 1398 goto out; 1399 1400 /* set the necessary init items */ 1401 ret = mt7915_mcu_set_eeprom(dev); 1402 if (ret) 1403 goto out; 1404 1405 mt7915_mac_init(dev); 1406 mt7915_init_txpower(dev, &dev->mphy.sband_2g.sband); 1407 mt7915_init_txpower(dev, &dev->mphy.sband_5g.sband); 1408 ret = mt7915_txbf_init(dev); 1409 1410 if (test_bit(MT76_STATE_RUNNING, &dev->mphy.state)) { 1411 ret = mt7915_run(dev->mphy.hw); 1412 if (ret) 1413 goto out; 1414 } 1415 1416 if (ext_phy && test_bit(MT76_STATE_RUNNING, &ext_phy->state)) { 1417 ret = mt7915_run(ext_phy->hw); 1418 if (ret) 1419 goto out; 1420 } 1421 1422 out: 1423 /* reset done */ 1424 clear_bit(MT76_RESET, &dev->mphy.state); 1425 if (phy2) 1426 clear_bit(MT76_RESET, &phy2->mt76->state); 1427 1428 local_bh_disable(); 1429 napi_enable(&dev->mt76.tx_napi); 1430 napi_schedule(&dev->mt76.tx_napi); 1431 local_bh_enable(); 1432 1433 mt76_worker_enable(&dev->mt76.tx_worker); 1434 1435 return ret; 1436 } 1437 1438 static void mt7915_mac_full_reset(struct mt7915_dev * dev)1439 mt7915_mac_full_reset(struct mt7915_dev *dev) 1440 { 1441 struct mt76_phy *ext_phy; 1442 struct mt7915_phy *phy2; 1443 int i; 1444 1445 ext_phy = dev->mt76.phys[MT_BAND1]; 1446 phy2 = ext_phy ? ext_phy->priv : NULL; 1447 1448 dev->recovery.hw_full_reset = true; 1449 1450 wake_up(&dev->mt76.mcu.wait); 1451 ieee80211_stop_queues(mt76_hw(dev)); 1452 if (ext_phy) 1453 ieee80211_stop_queues(ext_phy->hw); 1454 1455 cancel_delayed_work_sync(&dev->mphy.mac_work); 1456 if (ext_phy) 1457 cancel_delayed_work_sync(&ext_phy->mac_work); 1458 1459 mutex_lock(&dev->mt76.mutex); 1460 for (i = 0; i < 10; i++) { 1461 if (!mt7915_mac_restart(dev)) 1462 break; 1463 } 1464 1465 if (i == 10) 1466 dev_err(dev->mt76.dev, "chip full reset failed\n"); 1467 1468 spin_lock_bh(&dev->mt76.sta_poll_lock); 1469 while (!list_empty(&dev->mt76.sta_poll_list)) 1470 list_del_init(dev->mt76.sta_poll_list.next); 1471 spin_unlock_bh(&dev->mt76.sta_poll_lock); 1472 1473 memset(dev->mt76.wcid_mask, 0, sizeof(dev->mt76.wcid_mask)); 1474 dev->mt76.vif_mask = 0; 1475 dev->phy.omac_mask = 0; 1476 if (phy2) 1477 phy2->omac_mask = 0; 1478 1479 i = mt76_wcid_alloc(dev->mt76.wcid_mask, MT7915_WTBL_STA); 1480 dev->mt76.global_wcid.idx = i; 1481 dev->recovery.hw_full_reset = false; 1482 1483 mutex_unlock(&dev->mt76.mutex); 1484 1485 ieee80211_restart_hw(mt76_hw(dev)); 1486 if (ext_phy) 1487 ieee80211_restart_hw(ext_phy->hw); 1488 } 1489 1490 /* system error recovery */ mt7915_mac_reset_work(struct work_struct * work)1491 void mt7915_mac_reset_work(struct work_struct *work) 1492 { 1493 struct mt7915_phy *phy2; 1494 struct mt76_phy *ext_phy; 1495 struct mt7915_dev *dev; 1496 int i; 1497 1498 dev = container_of(work, struct mt7915_dev, reset_work); 1499 ext_phy = dev->mt76.phys[MT_BAND1]; 1500 phy2 = ext_phy ? ext_phy->priv : NULL; 1501 1502 /* chip full reset */ 1503 if (dev->recovery.restart) { 1504 /* disable WA/WM WDT */ 1505 mt76_clear(dev, MT_WFDMA0_MCU_HOST_INT_ENA, 1506 MT_MCU_CMD_WDT_MASK); 1507 1508 if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WA_WDT) 1509 dev->recovery.wa_reset_count++; 1510 else 1511 dev->recovery.wm_reset_count++; 1512 1513 mt7915_mac_full_reset(dev); 1514 1515 /* enable mcu irq */ 1516 mt7915_irq_enable(dev, MT_INT_MCU_CMD); 1517 mt7915_irq_disable(dev, 0); 1518 1519 /* enable WA/WM WDT */ 1520 mt76_set(dev, MT_WFDMA0_MCU_HOST_INT_ENA, MT_MCU_CMD_WDT_MASK); 1521 1522 dev->recovery.state = MT_MCU_CMD_NORMAL_STATE; 1523 dev->recovery.restart = false; 1524 return; 1525 } 1526 1527 /* chip partial reset */ 1528 if (!(READ_ONCE(dev->recovery.state) & MT_MCU_CMD_STOP_DMA)) 1529 return; 1530 1531 if (mtk_wed_device_active(&dev->mt76.mmio.wed)) { 1532 mtk_wed_device_stop(&dev->mt76.mmio.wed); 1533 if (!is_mt798x(&dev->mt76)) 1534 mt76_wr(dev, MT_INT_WED_MASK_CSR, 0); 1535 } 1536 1537 ieee80211_stop_queues(mt76_hw(dev)); 1538 if (ext_phy) 1539 ieee80211_stop_queues(ext_phy->hw); 1540 1541 set_bit(MT76_RESET, &dev->mphy.state); 1542 set_bit(MT76_MCU_RESET, &dev->mphy.state); 1543 wake_up(&dev->mt76.mcu.wait); 1544 cancel_delayed_work_sync(&dev->mphy.mac_work); 1545 if (phy2) { 1546 set_bit(MT76_RESET, &phy2->mt76->state); 1547 cancel_delayed_work_sync(&phy2->mt76->mac_work); 1548 } 1549 1550 mutex_lock(&dev->mt76.mutex); 1551 1552 mt76_worker_disable(&dev->mt76.tx_worker); 1553 mt76_for_each_q_rx(&dev->mt76, i) 1554 napi_disable(&dev->mt76.napi[i]); 1555 napi_disable(&dev->mt76.tx_napi); 1556 1557 1558 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED); 1559 1560 if (mt7915_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) { 1561 mt7915_dma_reset(dev, false); 1562 1563 mt76_connac2_tx_token_put(&dev->mt76); 1564 idr_init(&dev->mt76.token); 1565 1566 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT); 1567 mt7915_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE); 1568 } 1569 1570 mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE); 1571 mt7915_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE); 1572 1573 /* enable DMA Tx/Rx and interrupt */ 1574 mt7915_dma_start(dev, false, false); 1575 1576 clear_bit(MT76_MCU_RESET, &dev->mphy.state); 1577 clear_bit(MT76_RESET, &dev->mphy.state); 1578 if (phy2) 1579 clear_bit(MT76_RESET, &phy2->mt76->state); 1580 1581 local_bh_disable(); 1582 mt76_for_each_q_rx(&dev->mt76, i) { 1583 napi_enable(&dev->mt76.napi[i]); 1584 napi_schedule(&dev->mt76.napi[i]); 1585 } 1586 local_bh_enable(); 1587 1588 tasklet_schedule(&dev->mt76.irq_tasklet); 1589 1590 mt76_worker_enable(&dev->mt76.tx_worker); 1591 1592 local_bh_disable(); 1593 napi_enable(&dev->mt76.tx_napi); 1594 napi_schedule(&dev->mt76.tx_napi); 1595 local_bh_enable(); 1596 1597 ieee80211_wake_queues(mt76_hw(dev)); 1598 if (ext_phy) 1599 ieee80211_wake_queues(ext_phy->hw); 1600 1601 mutex_unlock(&dev->mt76.mutex); 1602 1603 mt7915_update_beacons(dev); 1604 1605 ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work, 1606 MT7915_WATCHDOG_TIME); 1607 if (phy2) 1608 ieee80211_queue_delayed_work(ext_phy->hw, 1609 &phy2->mt76->mac_work, 1610 MT7915_WATCHDOG_TIME); 1611 } 1612 1613 /* firmware coredump */ mt7915_mac_dump_work(struct work_struct * work)1614 void mt7915_mac_dump_work(struct work_struct *work) 1615 { 1616 const struct mt7915_mem_region *mem_region; 1617 struct mt7915_crash_data *crash_data; 1618 struct mt7915_dev *dev; 1619 struct mt7915_mem_hdr *hdr; 1620 size_t buf_len; 1621 int i; 1622 u32 num; 1623 u8 *buf; 1624 1625 dev = container_of(work, struct mt7915_dev, dump_work); 1626 1627 mutex_lock(&dev->dump_mutex); 1628 1629 crash_data = mt7915_coredump_new(dev); 1630 if (!crash_data) { 1631 mutex_unlock(&dev->dump_mutex); 1632 goto skip_coredump; 1633 } 1634 1635 mem_region = mt7915_coredump_get_mem_layout(dev, &num); 1636 if (!mem_region || !crash_data->memdump_buf_len) { 1637 mutex_unlock(&dev->dump_mutex); 1638 goto skip_memdump; 1639 } 1640 1641 buf = crash_data->memdump_buf; 1642 buf_len = crash_data->memdump_buf_len; 1643 1644 /* dumping memory content... */ 1645 memset(buf, 0, buf_len); 1646 for (i = 0; i < num; i++) { 1647 if (mem_region->len > buf_len) { 1648 dev_warn(dev->mt76.dev, "%s len %lu is too large\n", 1649 mem_region->name, 1650 (unsigned long)mem_region->len); 1651 break; 1652 } 1653 1654 /* reserve space for the header */ 1655 hdr = (void *)buf; 1656 buf += sizeof(*hdr); 1657 buf_len -= sizeof(*hdr); 1658 1659 mt7915_memcpy_fromio(dev, buf, mem_region->start, 1660 mem_region->len); 1661 1662 hdr->start = mem_region->start; 1663 hdr->len = mem_region->len; 1664 1665 if (!mem_region->len) 1666 /* note: the header remains, just with zero length */ 1667 break; 1668 1669 buf += mem_region->len; 1670 buf_len -= mem_region->len; 1671 1672 mem_region++; 1673 } 1674 1675 mutex_unlock(&dev->dump_mutex); 1676 1677 skip_memdump: 1678 mt7915_coredump_submit(dev); 1679 skip_coredump: 1680 queue_work(dev->mt76.wq, &dev->reset_work); 1681 } 1682 mt7915_reset(struct mt7915_dev * dev)1683 void mt7915_reset(struct mt7915_dev *dev) 1684 { 1685 if (!dev->recovery.hw_init_done) 1686 return; 1687 1688 if (dev->recovery.hw_full_reset) 1689 return; 1690 1691 /* wm/wa exception: do full recovery */ 1692 if (READ_ONCE(dev->recovery.state) & MT_MCU_CMD_WDT_MASK) { 1693 dev->recovery.restart = true; 1694 dev_info(dev->mt76.dev, 1695 "%s indicated firmware crash, attempting recovery\n", 1696 wiphy_name(dev->mt76.hw->wiphy)); 1697 1698 mt7915_irq_disable(dev, MT_INT_MCU_CMD); 1699 queue_work(dev->mt76.wq, &dev->dump_work); 1700 return; 1701 } 1702 1703 queue_work(dev->mt76.wq, &dev->reset_work); 1704 wake_up(&dev->reset_wait); 1705 } 1706 mt7915_mac_update_stats(struct mt7915_phy * phy)1707 void mt7915_mac_update_stats(struct mt7915_phy *phy) 1708 { 1709 struct mt76_mib_stats *mib = &phy->mib; 1710 struct mt7915_dev *dev = phy->dev; 1711 int i, aggr0 = 0, aggr1, cnt; 1712 u8 band = phy->mt76->band_idx; 1713 u32 val; 1714 1715 cnt = mt76_rr(dev, MT_MIB_SDR3(band)); 1716 mib->fcs_err_cnt += is_mt7915(&dev->mt76) ? 1717 FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK, cnt) : 1718 FIELD_GET(MT_MIB_SDR3_FCS_ERR_MASK_MT7916, cnt); 1719 1720 cnt = mt76_rr(dev, MT_MIB_SDR4(band)); 1721 mib->rx_fifo_full_cnt += FIELD_GET(MT_MIB_SDR4_RX_FIFO_FULL_MASK, cnt); 1722 1723 cnt = mt76_rr(dev, MT_MIB_SDR5(band)); 1724 mib->rx_mpdu_cnt += cnt; 1725 1726 cnt = mt76_rr(dev, MT_MIB_SDR6(band)); 1727 mib->channel_idle_cnt += FIELD_GET(MT_MIB_SDR6_CHANNEL_IDL_CNT_MASK, cnt); 1728 1729 cnt = mt76_rr(dev, MT_MIB_SDR7(band)); 1730 mib->rx_vector_mismatch_cnt += 1731 FIELD_GET(MT_MIB_SDR7_RX_VECTOR_MISMATCH_CNT_MASK, cnt); 1732 1733 cnt = mt76_rr(dev, MT_MIB_SDR8(band)); 1734 mib->rx_delimiter_fail_cnt += 1735 FIELD_GET(MT_MIB_SDR8_RX_DELIMITER_FAIL_CNT_MASK, cnt); 1736 1737 cnt = mt76_rr(dev, MT_MIB_SDR10(band)); 1738 mib->rx_mrdy_cnt += is_mt7915(&dev->mt76) ? 1739 FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK, cnt) : 1740 FIELD_GET(MT_MIB_SDR10_MRDY_COUNT_MASK_MT7916, cnt); 1741 1742 cnt = mt76_rr(dev, MT_MIB_SDR11(band)); 1743 mib->rx_len_mismatch_cnt += 1744 FIELD_GET(MT_MIB_SDR11_RX_LEN_MISMATCH_CNT_MASK, cnt); 1745 1746 cnt = mt76_rr(dev, MT_MIB_SDR12(band)); 1747 mib->tx_ampdu_cnt += cnt; 1748 1749 cnt = mt76_rr(dev, MT_MIB_SDR13(band)); 1750 mib->tx_stop_q_empty_cnt += 1751 FIELD_GET(MT_MIB_SDR13_TX_STOP_Q_EMPTY_CNT_MASK, cnt); 1752 1753 cnt = mt76_rr(dev, MT_MIB_SDR14(band)); 1754 mib->tx_mpdu_attempts_cnt += is_mt7915(&dev->mt76) ? 1755 FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK, cnt) : 1756 FIELD_GET(MT_MIB_SDR14_TX_MPDU_ATTEMPTS_CNT_MASK_MT7916, cnt); 1757 1758 cnt = mt76_rr(dev, MT_MIB_SDR15(band)); 1759 mib->tx_mpdu_success_cnt += is_mt7915(&dev->mt76) ? 1760 FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK, cnt) : 1761 FIELD_GET(MT_MIB_SDR15_TX_MPDU_SUCCESS_CNT_MASK_MT7916, cnt); 1762 1763 cnt = mt76_rr(dev, MT_MIB_SDR16(band)); 1764 mib->primary_cca_busy_time += 1765 FIELD_GET(MT_MIB_SDR16_PRIMARY_CCA_BUSY_TIME_MASK, cnt); 1766 1767 cnt = mt76_rr(dev, MT_MIB_SDR17(band)); 1768 mib->secondary_cca_busy_time += 1769 FIELD_GET(MT_MIB_SDR17_SECONDARY_CCA_BUSY_TIME_MASK, cnt); 1770 1771 cnt = mt76_rr(dev, MT_MIB_SDR18(band)); 1772 mib->primary_energy_detect_time += 1773 FIELD_GET(MT_MIB_SDR18_PRIMARY_ENERGY_DETECT_TIME_MASK, cnt); 1774 1775 cnt = mt76_rr(dev, MT_MIB_SDR19(band)); 1776 mib->cck_mdrdy_time += FIELD_GET(MT_MIB_SDR19_CCK_MDRDY_TIME_MASK, cnt); 1777 1778 cnt = mt76_rr(dev, MT_MIB_SDR20(band)); 1779 mib->ofdm_mdrdy_time += 1780 FIELD_GET(MT_MIB_SDR20_OFDM_VHT_MDRDY_TIME_MASK, cnt); 1781 1782 cnt = mt76_rr(dev, MT_MIB_SDR21(band)); 1783 mib->green_mdrdy_time += 1784 FIELD_GET(MT_MIB_SDR21_GREEN_MDRDY_TIME_MASK, cnt); 1785 1786 cnt = mt76_rr(dev, MT_MIB_SDR22(band)); 1787 mib->rx_ampdu_cnt += cnt; 1788 1789 cnt = mt76_rr(dev, MT_MIB_SDR23(band)); 1790 mib->rx_ampdu_bytes_cnt += cnt; 1791 1792 cnt = mt76_rr(dev, MT_MIB_SDR24(band)); 1793 mib->rx_ampdu_valid_subframe_cnt += is_mt7915(&dev->mt76) ? 1794 FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK, cnt) : 1795 FIELD_GET(MT_MIB_SDR24_RX_AMPDU_SF_CNT_MASK_MT7916, cnt); 1796 1797 cnt = mt76_rr(dev, MT_MIB_SDR25(band)); 1798 mib->rx_ampdu_valid_subframe_bytes_cnt += cnt; 1799 1800 cnt = mt76_rr(dev, MT_MIB_SDR27(band)); 1801 mib->tx_rwp_fail_cnt += 1802 FIELD_GET(MT_MIB_SDR27_TX_RWP_FAIL_CNT_MASK, cnt); 1803 1804 cnt = mt76_rr(dev, MT_MIB_SDR28(band)); 1805 mib->tx_rwp_need_cnt += 1806 FIELD_GET(MT_MIB_SDR28_TX_RWP_NEED_CNT_MASK, cnt); 1807 1808 cnt = mt76_rr(dev, MT_MIB_SDR29(band)); 1809 mib->rx_pfdrop_cnt += is_mt7915(&dev->mt76) ? 1810 FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK, cnt) : 1811 FIELD_GET(MT_MIB_SDR29_RX_PFDROP_CNT_MASK_MT7916, cnt); 1812 1813 cnt = mt76_rr(dev, MT_MIB_SDRVEC(band)); 1814 mib->rx_vec_queue_overflow_drop_cnt += is_mt7915(&dev->mt76) ? 1815 FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK, cnt) : 1816 FIELD_GET(MT_MIB_SDR30_RX_VEC_QUEUE_OVERFLOW_DROP_CNT_MASK_MT7916, cnt); 1817 1818 cnt = mt76_rr(dev, MT_MIB_SDR31(band)); 1819 mib->rx_ba_cnt += cnt; 1820 1821 cnt = mt76_rr(dev, MT_MIB_SDRMUBF(band)); 1822 mib->tx_bf_cnt += FIELD_GET(MT_MIB_MU_BF_TX_CNT, cnt); 1823 1824 cnt = mt76_rr(dev, MT_MIB_DR8(band)); 1825 mib->tx_mu_mpdu_cnt += cnt; 1826 1827 cnt = mt76_rr(dev, MT_MIB_DR9(band)); 1828 mib->tx_mu_acked_mpdu_cnt += cnt; 1829 1830 cnt = mt76_rr(dev, MT_MIB_DR11(band)); 1831 mib->tx_su_acked_mpdu_cnt += cnt; 1832 1833 cnt = mt76_rr(dev, MT_ETBF_PAR_RPT0(band)); 1834 mib->tx_bf_rx_fb_bw = FIELD_GET(MT_ETBF_PAR_RPT0_FB_BW, cnt); 1835 mib->tx_bf_rx_fb_nc_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NC, cnt); 1836 mib->tx_bf_rx_fb_nr_cnt += FIELD_GET(MT_ETBF_PAR_RPT0_FB_NR, cnt); 1837 1838 for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) { 1839 cnt = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i)); 1840 mib->tx_amsdu[i] += cnt; 1841 mib->tx_amsdu_cnt += cnt; 1842 } 1843 1844 if (is_mt7915(&dev->mt76)) { 1845 for (i = 0, aggr1 = aggr0 + 8; i < 4; i++) { 1846 val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 4))); 1847 mib->ba_miss_cnt += 1848 FIELD_GET(MT_MIB_BA_MISS_COUNT_MASK, val); 1849 mib->ack_fail_cnt += 1850 FIELD_GET(MT_MIB_ACK_FAIL_COUNT_MASK, val); 1851 1852 val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 4))); 1853 mib->rts_cnt += FIELD_GET(MT_MIB_RTS_COUNT_MASK, val); 1854 mib->rts_retries_cnt += 1855 FIELD_GET(MT_MIB_RTS_RETRIES_COUNT_MASK, val); 1856 1857 val = mt76_rr(dev, MT_TX_AGG_CNT(band, i)); 1858 phy->mt76->aggr_stats[aggr0++] += val & 0xffff; 1859 phy->mt76->aggr_stats[aggr0++] += val >> 16; 1860 1861 val = mt76_rr(dev, MT_TX_AGG_CNT2(band, i)); 1862 phy->mt76->aggr_stats[aggr1++] += val & 0xffff; 1863 phy->mt76->aggr_stats[aggr1++] += val >> 16; 1864 } 1865 1866 cnt = mt76_rr(dev, MT_MIB_SDR32(band)); 1867 mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); 1868 1869 cnt = mt76_rr(dev, MT_MIB_SDR33(band)); 1870 mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR33_TX_PKT_IBF_CNT, cnt); 1871 1872 cnt = mt76_rr(dev, MT_ETBF_TX_APP_CNT(band)); 1873 mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, cnt); 1874 mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, cnt); 1875 1876 cnt = mt76_rr(dev, MT_ETBF_TX_NDP_BFRP(band)); 1877 mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_ETBF_TX_FB_CPL, cnt); 1878 mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_ETBF_TX_FB_TRI, cnt); 1879 1880 cnt = mt76_rr(dev, MT_ETBF_RX_FB_CNT(band)); 1881 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, cnt); 1882 mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, cnt); 1883 mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, cnt); 1884 mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, cnt); 1885 } else { 1886 for (i = 0; i < 2; i++) { 1887 /* rts count */ 1888 val = mt76_rr(dev, MT_MIB_MB_SDR0(band, (i << 2))); 1889 mib->rts_cnt += FIELD_GET(GENMASK(15, 0), val); 1890 mib->rts_cnt += FIELD_GET(GENMASK(31, 16), val); 1891 1892 /* rts retry count */ 1893 val = mt76_rr(dev, MT_MIB_MB_SDR1(band, (i << 2))); 1894 mib->rts_retries_cnt += FIELD_GET(GENMASK(15, 0), val); 1895 mib->rts_retries_cnt += FIELD_GET(GENMASK(31, 16), val); 1896 1897 /* ba miss count */ 1898 val = mt76_rr(dev, MT_MIB_MB_SDR2(band, (i << 2))); 1899 mib->ba_miss_cnt += FIELD_GET(GENMASK(15, 0), val); 1900 mib->ba_miss_cnt += FIELD_GET(GENMASK(31, 16), val); 1901 1902 /* ack fail count */ 1903 val = mt76_rr(dev, MT_MIB_MB_BFTF(band, (i << 2))); 1904 mib->ack_fail_cnt += FIELD_GET(GENMASK(15, 0), val); 1905 mib->ack_fail_cnt += FIELD_GET(GENMASK(31, 16), val); 1906 } 1907 1908 for (i = 0; i < 8; i++) { 1909 val = mt76_rr(dev, MT_TX_AGG_CNT(band, i)); 1910 phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(15, 0), val); 1911 phy->mt76->aggr_stats[aggr0++] += FIELD_GET(GENMASK(31, 16), val); 1912 } 1913 1914 cnt = mt76_rr(dev, MT_MIB_SDR32(band)); 1915 mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt); 1916 mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_IBF_CNT, cnt); 1917 mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); 1918 mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_MIB_SDR32_TX_PKT_EBF_CNT, cnt); 1919 1920 cnt = mt76_rr(dev, MT_MIB_BFCR7(band)); 1921 mib->tx_bf_fb_cpl_cnt += FIELD_GET(MT_MIB_BFCR7_BFEE_TX_FB_CPL, cnt); 1922 1923 cnt = mt76_rr(dev, MT_MIB_BFCR2(band)); 1924 mib->tx_bf_fb_trig_cnt += FIELD_GET(MT_MIB_BFCR2_BFEE_TX_FB_TRIG, cnt); 1925 1926 cnt = mt76_rr(dev, MT_MIB_BFCR0(band)); 1927 mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt); 1928 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_VHT, cnt); 1929 mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt); 1930 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR0_RX_FB_HT, cnt); 1931 1932 cnt = mt76_rr(dev, MT_MIB_BFCR1(band)); 1933 mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt); 1934 mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_MIB_BFCR1_RX_FB_HE, cnt); 1935 } 1936 } 1937 mt7915_mac_severe_check(struct mt7915_phy * phy)1938 static void mt7915_mac_severe_check(struct mt7915_phy *phy) 1939 { 1940 struct mt7915_dev *dev = phy->dev; 1941 u32 trb; 1942 1943 if (!phy->omac_mask) 1944 return; 1945 1946 /* In rare cases, TRB pointers might be out of sync leads to RMAC 1947 * stopping Rx, so check status periodically to see if TRB hardware 1948 * requires minimal recovery. 1949 */ 1950 trb = mt76_rr(dev, MT_TRB_RXPSR0(phy->mt76->band_idx)); 1951 1952 if ((FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, trb) != 1953 FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, trb)) && 1954 (FIELD_GET(MT_TRB_RXPSR0_RX_RMAC_PTR, phy->trb_ts) != 1955 FIELD_GET(MT_TRB_RXPSR0_RX_WTBL_PTR, phy->trb_ts)) && 1956 trb == phy->trb_ts) 1957 mt7915_mcu_set_ser(dev, SER_RECOVER, SER_SET_RECOVER_L3_RX_ABORT, 1958 phy->mt76->band_idx); 1959 1960 phy->trb_ts = trb; 1961 } 1962 mt7915_mac_sta_rc_work(struct work_struct * work)1963 void mt7915_mac_sta_rc_work(struct work_struct *work) 1964 { 1965 struct mt7915_dev *dev = container_of(work, struct mt7915_dev, rc_work); 1966 struct ieee80211_sta *sta; 1967 struct ieee80211_vif *vif; 1968 struct mt7915_sta *msta; 1969 u32 changed; 1970 LIST_HEAD(list); 1971 1972 spin_lock_bh(&dev->mt76.sta_poll_lock); 1973 list_splice_init(&dev->sta_rc_list, &list); 1974 1975 while (!list_empty(&list)) { 1976 msta = list_first_entry(&list, struct mt7915_sta, rc_list); 1977 list_del_init(&msta->rc_list); 1978 changed = msta->changed; 1979 msta->changed = 0; 1980 spin_unlock_bh(&dev->mt76.sta_poll_lock); 1981 1982 sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); 1983 vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); 1984 1985 if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED | 1986 IEEE80211_RC_NSS_CHANGED | 1987 IEEE80211_RC_BW_CHANGED)) 1988 mt7915_mcu_add_rate_ctrl(dev, vif, sta, true); 1989 1990 if (changed & IEEE80211_RC_SMPS_CHANGED) 1991 mt7915_mcu_add_smps(dev, vif, sta); 1992 1993 spin_lock_bh(&dev->mt76.sta_poll_lock); 1994 } 1995 1996 spin_unlock_bh(&dev->mt76.sta_poll_lock); 1997 } 1998 mt7915_mac_work(struct work_struct * work)1999 void mt7915_mac_work(struct work_struct *work) 2000 { 2001 struct mt7915_phy *phy; 2002 struct mt76_phy *mphy; 2003 2004 mphy = (struct mt76_phy *)container_of(work, struct mt76_phy, 2005 mac_work.work); 2006 phy = mphy->priv; 2007 2008 mutex_lock(&mphy->dev->mutex); 2009 2010 mt76_update_survey(mphy); 2011 if (++mphy->mac_work_count == 5) { 2012 mphy->mac_work_count = 0; 2013 2014 mt7915_mac_update_stats(phy); 2015 mt7915_mac_severe_check(phy); 2016 2017 if (phy->dev->muru_debug) 2018 mt7915_mcu_muru_debug_get(phy); 2019 } 2020 2021 mutex_unlock(&mphy->dev->mutex); 2022 2023 mt76_tx_status_check(mphy->dev, false); 2024 2025 ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, 2026 MT7915_WATCHDOG_TIME); 2027 } 2028 mt7915_dfs_stop_radar_detector(struct mt7915_phy * phy)2029 static void mt7915_dfs_stop_radar_detector(struct mt7915_phy *phy) 2030 { 2031 struct mt7915_dev *dev = phy->dev; 2032 2033 if (phy->rdd_state & BIT(0)) 2034 mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 0, 2035 MT_RX_SEL0, 0); 2036 if (phy->rdd_state & BIT(1)) 2037 mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_STOP, 1, 2038 MT_RX_SEL0, 0); 2039 } 2040 mt7915_dfs_start_rdd(struct mt7915_dev * dev,int chain)2041 static int mt7915_dfs_start_rdd(struct mt7915_dev *dev, int chain) 2042 { 2043 int err, region; 2044 2045 switch (dev->mt76.region) { 2046 case NL80211_DFS_ETSI: 2047 region = 0; 2048 break; 2049 case NL80211_DFS_JP: 2050 region = 2; 2051 break; 2052 case NL80211_DFS_FCC: 2053 default: 2054 region = 1; 2055 break; 2056 } 2057 2058 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_START, chain, 2059 MT_RX_SEL0, region); 2060 if (err < 0) 2061 return err; 2062 2063 if (is_mt7915(&dev->mt76)) { 2064 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, chain, 2065 0, dev->dbdc_support ? 2 : 0); 2066 if (err < 0) 2067 return err; 2068 } 2069 2070 return mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_DET_MODE, chain, 2071 MT_RX_SEL0, 1); 2072 } 2073 mt7915_dfs_start_radar_detector(struct mt7915_phy * phy)2074 static int mt7915_dfs_start_radar_detector(struct mt7915_phy *phy) 2075 { 2076 struct cfg80211_chan_def *chandef = &phy->mt76->chandef; 2077 struct mt7915_dev *dev = phy->dev; 2078 int err; 2079 2080 /* start CAC */ 2081 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_START, 2082 phy->mt76->band_idx, MT_RX_SEL0, 0); 2083 if (err < 0) 2084 return err; 2085 2086 err = mt7915_dfs_start_rdd(dev, phy->mt76->band_idx); 2087 if (err < 0) 2088 return err; 2089 2090 phy->rdd_state |= BIT(phy->mt76->band_idx); 2091 2092 if (!is_mt7915(&dev->mt76)) 2093 return 0; 2094 2095 if (chandef->width == NL80211_CHAN_WIDTH_160 || 2096 chandef->width == NL80211_CHAN_WIDTH_80P80) { 2097 err = mt7915_dfs_start_rdd(dev, 1); 2098 if (err < 0) 2099 return err; 2100 2101 phy->rdd_state |= BIT(1); 2102 } 2103 2104 return 0; 2105 } 2106 2107 static int mt7915_dfs_init_radar_specs(struct mt7915_phy * phy)2108 mt7915_dfs_init_radar_specs(struct mt7915_phy *phy) 2109 { 2110 const struct mt7915_dfs_radar_spec *radar_specs; 2111 struct mt7915_dev *dev = phy->dev; 2112 int err, i; 2113 2114 switch (dev->mt76.region) { 2115 case NL80211_DFS_FCC: 2116 radar_specs = &fcc_radar_specs; 2117 err = mt7915_mcu_set_fcc5_lpn(dev, 8); 2118 if (err < 0) 2119 return err; 2120 break; 2121 case NL80211_DFS_ETSI: 2122 radar_specs = &etsi_radar_specs; 2123 break; 2124 case NL80211_DFS_JP: 2125 radar_specs = &jp_radar_specs; 2126 break; 2127 default: 2128 return -EINVAL; 2129 } 2130 2131 for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) { 2132 err = mt7915_mcu_set_radar_th(dev, i, 2133 &radar_specs->radar_pattern[i]); 2134 if (err < 0) 2135 return err; 2136 } 2137 2138 return mt7915_mcu_set_pulse_th(dev, &radar_specs->pulse_th); 2139 } 2140 mt7915_dfs_init_radar_detector(struct mt7915_phy * phy)2141 int mt7915_dfs_init_radar_detector(struct mt7915_phy *phy) 2142 { 2143 struct mt7915_dev *dev = phy->dev; 2144 enum mt76_dfs_state dfs_state, prev_state; 2145 int err; 2146 2147 prev_state = phy->mt76->dfs_state; 2148 dfs_state = mt76_phy_dfs_state(phy->mt76); 2149 2150 if (prev_state == dfs_state) 2151 return 0; 2152 2153 if (prev_state == MT_DFS_STATE_UNKNOWN) 2154 mt7915_dfs_stop_radar_detector(phy); 2155 2156 if (dfs_state == MT_DFS_STATE_DISABLED) 2157 goto stop; 2158 2159 if (prev_state <= MT_DFS_STATE_DISABLED) { 2160 err = mt7915_dfs_init_radar_specs(phy); 2161 if (err < 0) 2162 return err; 2163 2164 err = mt7915_dfs_start_radar_detector(phy); 2165 if (err < 0) 2166 return err; 2167 2168 phy->mt76->dfs_state = MT_DFS_STATE_CAC; 2169 } 2170 2171 if (dfs_state == MT_DFS_STATE_CAC) 2172 return 0; 2173 2174 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_CAC_END, 2175 phy->mt76->band_idx, MT_RX_SEL0, 0); 2176 if (err < 0) { 2177 phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN; 2178 return err; 2179 } 2180 2181 phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE; 2182 return 0; 2183 2184 stop: 2185 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_NORMAL_START, 2186 phy->mt76->band_idx, MT_RX_SEL0, 0); 2187 if (err < 0) 2188 return err; 2189 2190 if (is_mt7915(&dev->mt76)) { 2191 err = mt76_connac_mcu_rdd_cmd(&dev->mt76, RDD_SET_WF_ANT, 2192 phy->mt76->band_idx, 0, 2193 dev->dbdc_support ? 2 : 0); 2194 if (err < 0) 2195 return err; 2196 } 2197 2198 mt7915_dfs_stop_radar_detector(phy); 2199 phy->mt76->dfs_state = MT_DFS_STATE_DISABLED; 2200 2201 return 0; 2202 } 2203 2204 static int mt7915_mac_twt_duration_align(int duration)2205 mt7915_mac_twt_duration_align(int duration) 2206 { 2207 return duration << 8; 2208 } 2209 2210 static u64 mt7915_mac_twt_sched_list_add(struct mt7915_dev * dev,struct mt7915_twt_flow * flow)2211 mt7915_mac_twt_sched_list_add(struct mt7915_dev *dev, 2212 struct mt7915_twt_flow *flow) 2213 { 2214 struct mt7915_twt_flow *iter, *iter_next; 2215 u32 duration = flow->duration << 8; 2216 u64 start_tsf; 2217 2218 iter = list_first_entry_or_null(&dev->twt_list, 2219 struct mt7915_twt_flow, list); 2220 if (!iter || !iter->sched || iter->start_tsf > duration) { 2221 /* add flow as first entry in the list */ 2222 list_add(&flow->list, &dev->twt_list); 2223 return 0; 2224 } 2225 2226 list_for_each_entry_safe(iter, iter_next, &dev->twt_list, list) { 2227 start_tsf = iter->start_tsf + 2228 mt7915_mac_twt_duration_align(iter->duration); 2229 if (list_is_last(&iter->list, &dev->twt_list)) 2230 break; 2231 2232 if (!iter_next->sched || 2233 iter_next->start_tsf > start_tsf + duration) { 2234 list_add(&flow->list, &iter->list); 2235 goto out; 2236 } 2237 } 2238 2239 /* add flow as last entry in the list */ 2240 list_add_tail(&flow->list, &dev->twt_list); 2241 out: 2242 return start_tsf; 2243 } 2244 mt7915_mac_check_twt_req(struct ieee80211_twt_setup * twt)2245 static int mt7915_mac_check_twt_req(struct ieee80211_twt_setup *twt) 2246 { 2247 struct ieee80211_twt_params *twt_agrt; 2248 u64 interval, duration; 2249 u16 mantissa; 2250 u8 exp; 2251 2252 /* only individual agreement supported */ 2253 if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST) 2254 return -EOPNOTSUPP; 2255 2256 /* only 256us unit supported */ 2257 if (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) 2258 return -EOPNOTSUPP; 2259 2260 twt_agrt = (struct ieee80211_twt_params *)twt->params; 2261 2262 /* explicit agreement not supported */ 2263 if (!(twt_agrt->req_type & cpu_to_le16(IEEE80211_TWT_REQTYPE_IMPLICIT))) 2264 return -EOPNOTSUPP; 2265 2266 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, 2267 le16_to_cpu(twt_agrt->req_type)); 2268 mantissa = le16_to_cpu(twt_agrt->mantissa); 2269 duration = twt_agrt->min_twt_dur << 8; 2270 2271 interval = (u64)mantissa << exp; 2272 if (interval < duration) 2273 return -EOPNOTSUPP; 2274 2275 return 0; 2276 } 2277 2278 static bool mt7915_mac_twt_param_equal(struct mt7915_sta * msta,struct ieee80211_twt_params * twt_agrt)2279 mt7915_mac_twt_param_equal(struct mt7915_sta *msta, 2280 struct ieee80211_twt_params *twt_agrt) 2281 { 2282 u16 type = le16_to_cpu(twt_agrt->req_type); 2283 u8 exp; 2284 int i; 2285 2286 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, type); 2287 for (i = 0; i < MT7915_MAX_STA_TWT_AGRT; i++) { 2288 struct mt7915_twt_flow *f; 2289 2290 if (!(msta->twt.flowid_mask & BIT(i))) 2291 continue; 2292 2293 f = &msta->twt.flow[i]; 2294 if (f->duration == twt_agrt->min_twt_dur && 2295 f->mantissa == twt_agrt->mantissa && 2296 f->exp == exp && 2297 f->protection == !!(type & IEEE80211_TWT_REQTYPE_PROTECTION) && 2298 f->flowtype == !!(type & IEEE80211_TWT_REQTYPE_FLOWTYPE) && 2299 f->trigger == !!(type & IEEE80211_TWT_REQTYPE_TRIGGER)) 2300 return true; 2301 } 2302 2303 return false; 2304 } 2305 mt7915_mac_add_twt_setup(struct ieee80211_hw * hw,struct ieee80211_sta * sta,struct ieee80211_twt_setup * twt)2306 void mt7915_mac_add_twt_setup(struct ieee80211_hw *hw, 2307 struct ieee80211_sta *sta, 2308 struct ieee80211_twt_setup *twt) 2309 { 2310 enum ieee80211_twt_setup_cmd setup_cmd = TWT_SETUP_CMD_REJECT; 2311 struct mt7915_sta *msta = (struct mt7915_sta *)sta->drv_priv; 2312 struct ieee80211_twt_params *twt_agrt = (void *)twt->params; 2313 u16 req_type = le16_to_cpu(twt_agrt->req_type); 2314 enum ieee80211_twt_setup_cmd sta_setup_cmd; 2315 struct mt7915_dev *dev = mt7915_hw_dev(hw); 2316 struct mt7915_twt_flow *flow; 2317 int flowid, table_id; 2318 u8 exp; 2319 2320 if (mt7915_mac_check_twt_req(twt)) 2321 goto out; 2322 2323 mutex_lock(&dev->mt76.mutex); 2324 2325 if (dev->twt.n_agrt == MT7915_MAX_TWT_AGRT) 2326 goto unlock; 2327 2328 if (hweight8(msta->twt.flowid_mask) == ARRAY_SIZE(msta->twt.flow)) 2329 goto unlock; 2330 2331 if (twt_agrt->min_twt_dur < MT7915_MIN_TWT_DUR) { 2332 setup_cmd = TWT_SETUP_CMD_DICTATE; 2333 twt_agrt->min_twt_dur = MT7915_MIN_TWT_DUR; 2334 goto unlock; 2335 } 2336 2337 flowid = ffs(~msta->twt.flowid_mask) - 1; 2338 twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_FLOWID); 2339 twt_agrt->req_type |= le16_encode_bits(flowid, 2340 IEEE80211_TWT_REQTYPE_FLOWID); 2341 2342 table_id = ffs(~dev->twt.table_mask) - 1; 2343 exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type); 2344 sta_setup_cmd = FIELD_GET(IEEE80211_TWT_REQTYPE_SETUP_CMD, req_type); 2345 2346 if (mt7915_mac_twt_param_equal(msta, twt_agrt)) 2347 goto unlock; 2348 2349 flow = &msta->twt.flow[flowid]; 2350 memset(flow, 0, sizeof(*flow)); 2351 INIT_LIST_HEAD(&flow->list); 2352 flow->wcid = msta->wcid.idx; 2353 flow->table_id = table_id; 2354 flow->id = flowid; 2355 flow->duration = twt_agrt->min_twt_dur; 2356 flow->mantissa = twt_agrt->mantissa; 2357 flow->exp = exp; 2358 flow->protection = !!(req_type & IEEE80211_TWT_REQTYPE_PROTECTION); 2359 flow->flowtype = !!(req_type & IEEE80211_TWT_REQTYPE_FLOWTYPE); 2360 flow->trigger = !!(req_type & IEEE80211_TWT_REQTYPE_TRIGGER); 2361 2362 if (sta_setup_cmd == TWT_SETUP_CMD_REQUEST || 2363 sta_setup_cmd == TWT_SETUP_CMD_SUGGEST) { 2364 u64 interval = (u64)le16_to_cpu(twt_agrt->mantissa) << exp; 2365 u64 flow_tsf, curr_tsf; 2366 u32 rem; 2367 2368 flow->sched = true; 2369 flow->start_tsf = mt7915_mac_twt_sched_list_add(dev, flow); 2370 curr_tsf = __mt7915_get_tsf(hw, msta->vif); 2371 div_u64_rem(curr_tsf - flow->start_tsf, interval, &rem); 2372 flow_tsf = curr_tsf + interval - rem; 2373 twt_agrt->twt = cpu_to_le64(flow_tsf); 2374 } else { 2375 list_add_tail(&flow->list, &dev->twt_list); 2376 } 2377 flow->tsf = le64_to_cpu(twt_agrt->twt); 2378 2379 if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow, MCU_TWT_AGRT_ADD)) 2380 goto unlock; 2381 2382 setup_cmd = TWT_SETUP_CMD_ACCEPT; 2383 dev->twt.table_mask |= BIT(table_id); 2384 msta->twt.flowid_mask |= BIT(flowid); 2385 dev->twt.n_agrt++; 2386 2387 unlock: 2388 mutex_unlock(&dev->mt76.mutex); 2389 out: 2390 twt_agrt->req_type &= ~cpu_to_le16(IEEE80211_TWT_REQTYPE_SETUP_CMD); 2391 twt_agrt->req_type |= 2392 le16_encode_bits(setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD); 2393 twt->control = (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) | 2394 (twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED); 2395 } 2396 mt7915_mac_twt_teardown_flow(struct mt7915_dev * dev,struct mt7915_sta * msta,u8 flowid)2397 void mt7915_mac_twt_teardown_flow(struct mt7915_dev *dev, 2398 struct mt7915_sta *msta, 2399 u8 flowid) 2400 { 2401 struct mt7915_twt_flow *flow; 2402 2403 lockdep_assert_held(&dev->mt76.mutex); 2404 2405 if (flowid >= ARRAY_SIZE(msta->twt.flow)) 2406 return; 2407 2408 if (!(msta->twt.flowid_mask & BIT(flowid))) 2409 return; 2410 2411 flow = &msta->twt.flow[flowid]; 2412 if (mt7915_mcu_twt_agrt_update(dev, msta->vif, flow, 2413 MCU_TWT_AGRT_DELETE)) 2414 return; 2415 2416 list_del_init(&flow->list); 2417 msta->twt.flowid_mask &= ~BIT(flowid); 2418 dev->twt.table_mask &= ~BIT(flow->table_id); 2419 dev->twt.n_agrt--; 2420 } 2421