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