| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Shayne Chen | 14240 | 98.72% | 1 | 33.33% |
| Ryder Lee | 184 | 1.28% | 2 | 66.67% |
| Total | 14424 | 3 |
// SPDX-License-Identifier: ISC /* * Copyright (C) 2022 MediaTek Inc. */ #include <linux/etherdevice.h> #include <linux/timekeeping.h> #include "mt7996.h" #include "../dma.h" #include "mac.h" #include "mcu.h" #define to_rssi(field, rcpi) ((FIELD_GET(field, rcpi) - 220) / 2) #define HE_BITS(f) cpu_to_le16(IEEE80211_RADIOTAP_HE_##f) #define HE_PREP(f, m, v) le16_encode_bits(le32_get_bits(v, MT_CRXV_HE_##m),\ IEEE80211_RADIOTAP_HE_##f) static const struct mt7996_dfs_radar_spec etsi_radar_specs = { .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, .radar_pattern = { [5] = { 1, 0, 6, 32, 28, 0, 990, 5010, 17, 1, 1 }, [6] = { 1, 0, 9, 32, 28, 0, 615, 5010, 27, 1, 1 }, [7] = { 1, 0, 15, 32, 28, 0, 240, 445, 27, 1, 1 }, [8] = { 1, 0, 12, 32, 28, 0, 240, 510, 42, 1, 1 }, [9] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 12, 32, 28, { }, 126 }, [10] = { 1, 1, 0, 0, 0, 0, 2490, 3343, 14, 0, 0, 15, 32, 24, { }, 126 }, [11] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 18, 32, 28, { }, 54 }, [12] = { 1, 1, 0, 0, 0, 0, 823, 2510, 14, 0, 0, 27, 32, 24, { }, 54 }, }, }; static const struct mt7996_dfs_radar_spec fcc_radar_specs = { .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, .radar_pattern = { [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, }, }; static const struct mt7996_dfs_radar_spec jp_radar_specs = { .pulse_th = { 110, -10, -80, 40, 5200, 128, 5200 }, .radar_pattern = { [0] = { 1, 0, 8, 32, 28, 0, 508, 3076, 13, 1, 1 }, [1] = { 1, 0, 12, 32, 28, 0, 140, 240, 17, 1, 1 }, [2] = { 1, 0, 8, 32, 28, 0, 190, 510, 22, 1, 1 }, [3] = { 1, 0, 6, 32, 28, 0, 190, 510, 32, 1, 1 }, [4] = { 1, 0, 9, 255, 28, 0, 323, 343, 13, 1, 32 }, [13] = { 1, 0, 7, 32, 28, 0, 3836, 3856, 14, 1, 1 }, [14] = { 1, 0, 6, 32, 28, 0, 615, 5010, 110, 1, 1 }, [15] = { 1, 1, 0, 0, 0, 0, 15, 5010, 110, 0, 0, 12, 32, 28 }, }, }; static struct mt76_wcid *mt7996_rx_get_wcid(struct mt7996_dev *dev, u16 idx, bool unicast) { struct mt7996_sta *sta; struct mt76_wcid *wcid; if (idx >= ARRAY_SIZE(dev->mt76.wcid)) return NULL; wcid = rcu_dereference(dev->mt76.wcid[idx]); if (unicast || !wcid) return wcid; if (!wcid->sta) return NULL; sta = container_of(wcid, struct mt7996_sta, wcid); if (!sta->vif) return NULL; return &sta->vif->sta.wcid; } void mt7996_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps) { } bool mt7996_mac_wtbl_update(struct mt7996_dev *dev, int idx, u32 mask) { mt76_rmw(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_WLAN_IDX, FIELD_PREP(MT_WTBL_UPDATE_WLAN_IDX, idx) | mask); return mt76_poll(dev, MT_WTBL_UPDATE, MT_WTBL_UPDATE_BUSY, 0, 5000); } u32 mt7996_mac_wtbl_lmac_addr(struct mt7996_dev *dev, u16 wcid, u8 dw) { mt76_wr(dev, MT_WTBLON_TOP_WDUCR, FIELD_PREP(MT_WTBLON_TOP_WDUCR_GROUP, (wcid >> 7))); return MT_WTBL_LMAC_OFFS(wcid, dw); } static void mt7996_mac_sta_poll(struct mt7996_dev *dev) { static const u8 ac_to_tid[] = { [IEEE80211_AC_BE] = 0, [IEEE80211_AC_BK] = 1, [IEEE80211_AC_VI] = 4, [IEEE80211_AC_VO] = 6 }; struct ieee80211_sta *sta; struct mt7996_sta *msta; struct rate_info *rate; u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; LIST_HEAD(sta_poll_list); int i; spin_lock_bh(&dev->sta_poll_lock); list_splice_init(&dev->sta_poll_list, &sta_poll_list); spin_unlock_bh(&dev->sta_poll_lock); rcu_read_lock(); while (true) { bool clear = false; u32 addr, val; u16 idx; s8 rssi[4]; u8 bw; spin_lock_bh(&dev->sta_poll_lock); if (list_empty(&sta_poll_list)) { spin_unlock_bh(&dev->sta_poll_lock); break; } msta = list_first_entry(&sta_poll_list, struct mt7996_sta, poll_list); list_del_init(&msta->poll_list); spin_unlock_bh(&dev->sta_poll_lock); idx = msta->wcid.idx; /* refresh peer's airtime reporting */ addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 20); for (i = 0; i < IEEE80211_NUM_ACS; i++) { u32 tx_last = msta->airtime_ac[i]; u32 rx_last = msta->airtime_ac[i + 4]; msta->airtime_ac[i] = mt76_rr(dev, addr); msta->airtime_ac[i + 4] = mt76_rr(dev, addr + 4); tx_time[i] = msta->airtime_ac[i] - tx_last; rx_time[i] = msta->airtime_ac[i + 4] - rx_last; if ((tx_last | rx_last) & BIT(30)) clear = true; addr += 8; } if (clear) { mt7996_mac_wtbl_update(dev, idx, MT_WTBL_UPDATE_ADM_COUNT_CLEAR); memset(msta->airtime_ac, 0, sizeof(msta->airtime_ac)); } if (!msta->wcid.sta) continue; sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); for (i = 0; i < IEEE80211_NUM_ACS; i++) { u8 q = mt76_connac_lmac_mapping(i); u32 tx_cur = tx_time[q]; u32 rx_cur = rx_time[q]; u8 tid = ac_to_tid[i]; if (!tx_cur && !rx_cur) continue; ieee80211_sta_register_airtime(sta, tid, tx_cur, rx_cur); } /* We don't support reading GI info from txs packets. * For accurate tx status reporting and AQL improvement, * we need to make sure that flags match so polling GI * from per-sta counters directly. */ rate = &msta->wcid.rate; switch (rate->bw) { case RATE_INFO_BW_160: bw = IEEE80211_STA_RX_BW_160; break; case RATE_INFO_BW_80: bw = IEEE80211_STA_RX_BW_80; break; case RATE_INFO_BW_40: bw = IEEE80211_STA_RX_BW_40; break; default: bw = IEEE80211_STA_RX_BW_20; break; } addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 6); val = mt76_rr(dev, addr); if (rate->flags & RATE_INFO_FLAGS_HE_MCS) { u8 offs = 24 + 2 * bw; rate->he_gi = (val & (0x3 << offs)) >> offs; } else if (rate->flags & (RATE_INFO_FLAGS_VHT_MCS | RATE_INFO_FLAGS_MCS)) { if (val & BIT(12 + bw)) rate->flags |= RATE_INFO_FLAGS_SHORT_GI; else rate->flags &= ~RATE_INFO_FLAGS_SHORT_GI; } /* get signal strength of resp frames (CTS/BA/ACK) */ addr = mt7996_mac_wtbl_lmac_addr(dev, idx, 34); val = mt76_rr(dev, addr); rssi[0] = to_rssi(GENMASK(7, 0), val); rssi[1] = to_rssi(GENMASK(15, 8), val); rssi[2] = to_rssi(GENMASK(23, 16), val); rssi[3] = to_rssi(GENMASK(31, 14), val); msta->ack_signal = mt76_rx_signal(msta->vif->phy->mt76->antenna_mask, rssi); ewma_avg_signal_add(&msta->avg_ack_signal, -msta->ack_signal); } rcu_read_unlock(); } void mt7996_mac_enable_rtscts(struct mt7996_dev *dev, struct ieee80211_vif *vif, bool enable) { struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; u32 addr; addr = mt7996_mac_wtbl_lmac_addr(dev, mvif->sta.wcid.idx, 5); if (enable) mt76_set(dev, addr, BIT(5)); else mt76_clear(dev, addr, BIT(5)); } static void mt7996_mac_decode_he_radiotap_ru(struct mt76_rx_status *status, struct ieee80211_radiotap_he *he, __le32 *rxv) { u32 ru_h, ru_l; u8 ru, offs = 0; ru_l = le32_get_bits(rxv[0], MT_PRXV_HE_RU_ALLOC_L); ru_h = le32_get_bits(rxv[1], MT_PRXV_HE_RU_ALLOC_H); ru = (u8)(ru_l | ru_h << 4); status->bw = RATE_INFO_BW_HE_RU; switch (ru) { case 0 ... 36: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26; offs = ru; break; case 37 ... 52: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52; offs = ru - 37; break; case 53 ... 60: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; offs = ru - 53; break; case 61 ... 64: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242; offs = ru - 61; break; case 65 ... 66: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484; offs = ru - 65; break; case 67: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996; break; case 68: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996; break; } he->data1 |= HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data2 |= HE_BITS(DATA2_RU_OFFSET_KNOWN) | le16_encode_bits(offs, IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET); } static void mt7996_mac_decode_he_mu_radiotap(struct sk_buff *skb, __le32 *rxv) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; static const struct ieee80211_radiotap_he_mu mu_known = { .flags1 = HE_BITS(MU_FLAGS1_SIG_B_MCS_KNOWN) | HE_BITS(MU_FLAGS1_SIG_B_DCM_KNOWN) | HE_BITS(MU_FLAGS1_CH1_RU_KNOWN) | HE_BITS(MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN), .flags2 = HE_BITS(MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN), }; struct ieee80211_radiotap_he_mu *he_mu = NULL; status->flag |= RX_FLAG_RADIOTAP_HE_MU; he_mu = skb_push(skb, sizeof(mu_known)); memcpy(he_mu, &mu_known, sizeof(mu_known)); #define MU_PREP(f, v) le16_encode_bits(v, IEEE80211_RADIOTAP_HE_MU_##f) he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_MCS, status->rate_idx); if (status->he_dcm) he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_DCM, status->he_dcm); he_mu->flags2 |= MU_PREP(FLAGS2_BW_FROM_SIG_A_BW, status->bw) | MU_PREP(FLAGS2_SIG_B_SYMS_USERS, le32_get_bits(rxv[2], MT_CRXV_HE_NUM_USER)); he_mu->ru_ch1[0] = le32_get_bits(rxv[3], MT_CRXV_HE_RU0); if (status->bw >= RATE_INFO_BW_40) { he_mu->flags1 |= HE_BITS(MU_FLAGS1_CH2_RU_KNOWN); he_mu->ru_ch2[0] = le32_get_bits(rxv[3], MT_CRXV_HE_RU1); } if (status->bw >= RATE_INFO_BW_80) { he_mu->ru_ch1[1] = le32_get_bits(rxv[3], MT_CRXV_HE_RU2); he_mu->ru_ch2[1] = le32_get_bits(rxv[3], MT_CRXV_HE_RU3); } } static void mt7996_mac_decode_he_radiotap(struct sk_buff *skb, __le32 *rxv, u8 mode) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; static const struct ieee80211_radiotap_he known = { .data1 = HE_BITS(DATA1_DATA_MCS_KNOWN) | HE_BITS(DATA1_DATA_DCM_KNOWN) | HE_BITS(DATA1_STBC_KNOWN) | HE_BITS(DATA1_CODING_KNOWN) | HE_BITS(DATA1_LDPC_XSYMSEG_KNOWN) | HE_BITS(DATA1_DOPPLER_KNOWN) | HE_BITS(DATA1_SPTL_REUSE_KNOWN) | HE_BITS(DATA1_BSS_COLOR_KNOWN), .data2 = HE_BITS(DATA2_GI_KNOWN) | HE_BITS(DATA2_TXBF_KNOWN) | HE_BITS(DATA2_PE_DISAMBIG_KNOWN) | HE_BITS(DATA2_TXOP_KNOWN), }; struct ieee80211_radiotap_he *he = NULL; u32 ltf_size = le32_get_bits(rxv[2], MT_CRXV_HE_LTF_SIZE) + 1; status->flag |= RX_FLAG_RADIOTAP_HE; he = skb_push(skb, sizeof(known)); memcpy(he, &known, sizeof(known)); he->data3 = HE_PREP(DATA3_BSS_COLOR, BSS_COLOR, rxv[14]) | HE_PREP(DATA3_LDPC_XSYMSEG, LDPC_EXT_SYM, rxv[2]); he->data4 = HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[11]); he->data5 = HE_PREP(DATA5_PE_DISAMBIG, PE_DISAMBIG, rxv[2]) | le16_encode_bits(ltf_size, IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE); if (le32_to_cpu(rxv[0]) & MT_PRXV_TXBF) he->data5 |= HE_BITS(DATA5_TXBF); he->data6 = HE_PREP(DATA6_TXOP, TXOP_DUR, rxv[14]) | HE_PREP(DATA6_DOPPLER, DOPPLER, rxv[14]); switch (mode) { case MT_PHY_TYPE_HE_SU: he->data1 |= HE_BITS(DATA1_FORMAT_SU) | HE_BITS(DATA1_UL_DL_KNOWN) | HE_BITS(DATA1_BEAM_CHANGE_KNOWN) | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data3 |= HE_PREP(DATA3_BEAM_CHANGE, BEAM_CHNG, rxv[14]) | HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); break; case MT_PHY_TYPE_HE_EXT_SU: he->data1 |= HE_BITS(DATA1_FORMAT_EXT_SU) | HE_BITS(DATA1_UL_DL_KNOWN) | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); break; case MT_PHY_TYPE_HE_MU: he->data1 |= HE_BITS(DATA1_FORMAT_MU) | HE_BITS(DATA1_UL_DL_KNOWN); he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[2]); he->data4 |= HE_PREP(DATA4_MU_STA_ID, MU_AID, rxv[7]); mt7996_mac_decode_he_radiotap_ru(status, he, rxv); mt7996_mac_decode_he_mu_radiotap(skb, rxv); break; case MT_PHY_TYPE_HE_TB: he->data1 |= HE_BITS(DATA1_FORMAT_TRIG) | HE_BITS(DATA1_SPTL_REUSE2_KNOWN) | HE_BITS(DATA1_SPTL_REUSE3_KNOWN) | HE_BITS(DATA1_SPTL_REUSE4_KNOWN); he->data4 |= HE_PREP(DATA4_TB_SPTL_REUSE1, SR_MASK, rxv[11]) | HE_PREP(DATA4_TB_SPTL_REUSE2, SR1_MASK, rxv[11]) | HE_PREP(DATA4_TB_SPTL_REUSE3, SR2_MASK, rxv[11]) | HE_PREP(DATA4_TB_SPTL_REUSE4, SR3_MASK, rxv[11]); mt7996_mac_decode_he_radiotap_ru(status, he, rxv); break; default: break; } } /* The HW does not translate the mac header to 802.3 for mesh point */ static int mt7996_reverse_frag0_hdr_trans(struct sk_buff *skb, u16 hdr_gap) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; struct ethhdr *eth_hdr = (struct ethhdr *)(skb->data + hdr_gap); struct mt7996_sta *msta = (struct mt7996_sta *)status->wcid; __le32 *rxd = (__le32 *)skb->data; struct ieee80211_sta *sta; struct ieee80211_vif *vif; struct ieee80211_hdr hdr; u16 frame_control; if (le32_get_bits(rxd[3], MT_RXD3_NORMAL_ADDR_TYPE) != MT_RXD3_NORMAL_U2M) return -EINVAL; if (!(le32_to_cpu(rxd[1]) & MT_RXD1_NORMAL_GROUP_4)) return -EINVAL; if (!msta || !msta->vif) return -EINVAL; sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); /* store the info from RXD and ethhdr to avoid being overridden */ frame_control = le32_get_bits(rxd[8], MT_RXD8_FRAME_CONTROL); hdr.frame_control = cpu_to_le16(frame_control); hdr.seq_ctrl = cpu_to_le16(le32_get_bits(rxd[10], MT_RXD10_SEQ_CTRL)); hdr.duration_id = 0; ether_addr_copy(hdr.addr1, vif->addr); ether_addr_copy(hdr.addr2, sta->addr); switch (frame_control & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { case 0: ether_addr_copy(hdr.addr3, vif->bss_conf.bssid); break; case IEEE80211_FCTL_FROMDS: ether_addr_copy(hdr.addr3, eth_hdr->h_source); break; case IEEE80211_FCTL_TODS: ether_addr_copy(hdr.addr3, eth_hdr->h_dest); break; case IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS: ether_addr_copy(hdr.addr3, eth_hdr->h_dest); ether_addr_copy(hdr.addr4, eth_hdr->h_source); break; default: break; } skb_pull(skb, hdr_gap + sizeof(struct ethhdr) - 2); if (eth_hdr->h_proto == cpu_to_be16(ETH_P_AARP) || eth_hdr->h_proto == cpu_to_be16(ETH_P_IPX)) ether_addr_copy(skb_push(skb, ETH_ALEN), bridge_tunnel_header); else if (be16_to_cpu(eth_hdr->h_proto) >= ETH_P_802_3_MIN) ether_addr_copy(skb_push(skb, ETH_ALEN), rfc1042_header); else skb_pull(skb, 2); if (ieee80211_has_order(hdr.frame_control)) memcpy(skb_push(skb, IEEE80211_HT_CTL_LEN), &rxd[11], IEEE80211_HT_CTL_LEN); if (ieee80211_is_data_qos(hdr.frame_control)) { __le16 qos_ctrl; qos_ctrl = cpu_to_le16(le32_get_bits(rxd[10], MT_RXD10_QOS_CTL)); memcpy(skb_push(skb, IEEE80211_QOS_CTL_LEN), &qos_ctrl, IEEE80211_QOS_CTL_LEN); } if (ieee80211_has_a4(hdr.frame_control)) memcpy(skb_push(skb, sizeof(hdr)), &hdr, sizeof(hdr)); else memcpy(skb_push(skb, sizeof(hdr) - 6), &hdr, sizeof(hdr) - 6); return 0; } static int mt7996_mac_fill_rx_rate(struct mt7996_dev *dev, struct mt76_rx_status *status, struct ieee80211_supported_band *sband, __le32 *rxv, u8 *mode) { u32 v0, v2; u8 stbc, gi, bw, dcm, nss; int i, idx; bool cck = false; v0 = le32_to_cpu(rxv[0]); v2 = le32_to_cpu(rxv[2]); idx = FIELD_GET(MT_PRXV_TX_RATE, v0); i = idx; nss = FIELD_GET(MT_PRXV_NSTS, v0) + 1; stbc = FIELD_GET(MT_PRXV_HT_STBC, v2); gi = FIELD_GET(MT_PRXV_HT_SHORT_GI, v2); *mode = FIELD_GET(MT_PRXV_TX_MODE, v2); dcm = FIELD_GET(MT_PRXV_DCM, v2); bw = FIELD_GET(MT_PRXV_FRAME_MODE, v2); switch (*mode) { case MT_PHY_TYPE_CCK: cck = true; fallthrough; case MT_PHY_TYPE_OFDM: i = mt76_get_rate(&dev->mt76, sband, i, cck); break; case MT_PHY_TYPE_HT_GF: case MT_PHY_TYPE_HT: status->encoding = RX_ENC_HT; if (gi) status->enc_flags |= RX_ENC_FLAG_SHORT_GI; if (i > 31) return -EINVAL; break; case MT_PHY_TYPE_VHT: status->nss = nss; status->encoding = RX_ENC_VHT; if (gi) status->enc_flags |= RX_ENC_FLAG_SHORT_GI; if (i > 11) return -EINVAL; break; case MT_PHY_TYPE_HE_MU: case MT_PHY_TYPE_HE_SU: case MT_PHY_TYPE_HE_EXT_SU: case MT_PHY_TYPE_HE_TB: status->nss = nss; status->encoding = RX_ENC_HE; i &= GENMASK(3, 0); if (gi <= NL80211_RATE_INFO_HE_GI_3_2) status->he_gi = gi; status->he_dcm = dcm; break; default: return -EINVAL; } status->rate_idx = i; switch (bw) { case IEEE80211_STA_RX_BW_20: break; case IEEE80211_STA_RX_BW_40: if (*mode & MT_PHY_TYPE_HE_EXT_SU && (idx & MT_PRXV_TX_ER_SU_106T)) { status->bw = RATE_INFO_BW_HE_RU; status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; } else { status->bw = RATE_INFO_BW_40; } break; case IEEE80211_STA_RX_BW_80: status->bw = RATE_INFO_BW_80; break; case IEEE80211_STA_RX_BW_160: status->bw = RATE_INFO_BW_160; break; default: return -EINVAL; } status->enc_flags |= RX_ENC_FLAG_STBC_MASK * stbc; if (*mode < MT_PHY_TYPE_HE_SU && gi) status->enc_flags |= RX_ENC_FLAG_SHORT_GI; return 0; } static int mt7996_mac_fill_rx(struct mt7996_dev *dev, struct sk_buff *skb) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; struct mt76_phy *mphy = &dev->mt76.phy; struct mt7996_phy *phy = &dev->phy; struct ieee80211_supported_band *sband; __le32 *rxd = (__le32 *)skb->data; __le32 *rxv = NULL; u32 rxd0 = le32_to_cpu(rxd[0]); u32 rxd1 = le32_to_cpu(rxd[1]); u32 rxd2 = le32_to_cpu(rxd[2]); u32 rxd3 = le32_to_cpu(rxd[3]); u32 rxd4 = le32_to_cpu(rxd[4]); u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; u32 csum_status = *(u32 *)skb->cb; bool unicast, insert_ccmp_hdr = false; u8 remove_pad, amsdu_info, band_idx; u8 mode = 0, qos_ctl = 0; bool hdr_trans; u16 hdr_gap; u16 seq_ctrl = 0; __le16 fc = 0; int idx; memset(status, 0, sizeof(*status)); band_idx = FIELD_GET(MT_RXD1_NORMAL_BAND_IDX, rxd1); mphy = dev->mt76.phys[band_idx]; phy = mphy->priv; status->phy_idx = mphy->band_idx; if (!test_bit(MT76_STATE_RUNNING, &mphy->state)) return -EINVAL; if (rxd2 & MT_RXD2_NORMAL_AMSDU_ERR) return -EINVAL; hdr_trans = rxd2 & MT_RXD2_NORMAL_HDR_TRANS; if (hdr_trans && (rxd1 & MT_RXD1_NORMAL_CM)) return -EINVAL; /* ICV error or CCMP/BIP/WPI MIC error */ if (rxd1 & MT_RXD1_NORMAL_ICV_ERR) status->flag |= RX_FLAG_ONLY_MONITOR; unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); status->wcid = mt7996_rx_get_wcid(dev, idx, unicast); if (status->wcid) { struct mt7996_sta *msta; msta = container_of(status->wcid, struct mt7996_sta, wcid); spin_lock_bh(&dev->sta_poll_lock); if (list_empty(&msta->poll_list)) list_add_tail(&msta->poll_list, &dev->sta_poll_list); spin_unlock_bh(&dev->sta_poll_lock); } status->freq = mphy->chandef.chan->center_freq; status->band = mphy->chandef.chan->band; if (status->band == NL80211_BAND_5GHZ) sband = &mphy->sband_5g.sband; else if (status->band == NL80211_BAND_6GHZ) sband = &mphy->sband_6g.sband; else sband = &mphy->sband_2g.sband; if (!sband->channels) return -EINVAL; if ((rxd0 & csum_mask) == csum_mask && !(csum_status & (BIT(0) | BIT(2) | BIT(3)))) skb->ip_summed = CHECKSUM_UNNECESSARY; if (rxd1 & MT_RXD3_NORMAL_FCS_ERR) status->flag |= RX_FLAG_FAILED_FCS_CRC; if (rxd1 & MT_RXD1_NORMAL_TKIP_MIC_ERR) status->flag |= RX_FLAG_MMIC_ERROR; if (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2) != 0 && !(rxd1 & (MT_RXD1_NORMAL_CLM | MT_RXD1_NORMAL_CM))) { status->flag |= RX_FLAG_DECRYPTED; status->flag |= RX_FLAG_IV_STRIPPED; status->flag |= RX_FLAG_MMIC_STRIPPED | RX_FLAG_MIC_STRIPPED; } remove_pad = FIELD_GET(MT_RXD2_NORMAL_HDR_OFFSET, rxd2); if (rxd2 & MT_RXD2_NORMAL_MAX_LEN_ERROR) return -EINVAL; rxd += 8; if (rxd1 & MT_RXD1_NORMAL_GROUP_4) { u32 v0 = le32_to_cpu(rxd[0]); u32 v2 = le32_to_cpu(rxd[2]); fc = cpu_to_le16(FIELD_GET(MT_RXD8_FRAME_CONTROL, v0)); qos_ctl = FIELD_GET(MT_RXD10_QOS_CTL, v2); seq_ctrl = FIELD_GET(MT_RXD10_SEQ_CTRL, v2); rxd += 4; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; } if (rxd1 & MT_RXD1_NORMAL_GROUP_1) { u8 *data = (u8 *)rxd; if (status->flag & RX_FLAG_DECRYPTED) { switch (FIELD_GET(MT_RXD2_NORMAL_SEC_MODE, rxd2)) { case MT_CIPHER_AES_CCMP: case MT_CIPHER_CCMP_CCX: case MT_CIPHER_CCMP_256: insert_ccmp_hdr = FIELD_GET(MT_RXD2_NORMAL_FRAG, rxd2); fallthrough; case MT_CIPHER_TKIP: case MT_CIPHER_TKIP_NO_MIC: case MT_CIPHER_GCMP: case MT_CIPHER_GCMP_256: status->iv[0] = data[5]; status->iv[1] = data[4]; status->iv[2] = data[3]; status->iv[3] = data[2]; status->iv[4] = data[1]; status->iv[5] = data[0]; break; default: break; } } rxd += 4; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; } if (rxd1 & MT_RXD1_NORMAL_GROUP_2) { status->timestamp = le32_to_cpu(rxd[0]); status->flag |= RX_FLAG_MACTIME_START; if (!(rxd2 & MT_RXD2_NORMAL_NON_AMPDU)) { status->flag |= RX_FLAG_AMPDU_DETAILS; /* all subframes of an A-MPDU have the same timestamp */ if (phy->rx_ampdu_ts != status->timestamp) { if (!++phy->ampdu_ref) phy->ampdu_ref++; } phy->rx_ampdu_ts = status->timestamp; status->ampdu_ref = phy->ampdu_ref; } rxd += 4; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; } /* RXD Group 3 - P-RXV */ if (rxd1 & MT_RXD1_NORMAL_GROUP_3) { u32 v3; int ret; rxv = rxd; rxd += 4; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; v3 = le32_to_cpu(rxv[3]); status->chains = mphy->antenna_mask; status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v3); status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v3); status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v3); status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v3); /* RXD Group 5 - C-RXV */ if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { rxd += 24; if ((u8 *)rxd - skb->data >= skb->len) return -EINVAL; } ret = mt7996_mac_fill_rx_rate(dev, status, sband, rxv, &mode); if (ret < 0) return ret; } amsdu_info = FIELD_GET(MT_RXD4_NORMAL_PAYLOAD_FORMAT, rxd4); status->amsdu = !!amsdu_info; if (status->amsdu) { status->first_amsdu = amsdu_info == MT_RXD4_FIRST_AMSDU_FRAME; status->last_amsdu = amsdu_info == MT_RXD4_LAST_AMSDU_FRAME; } hdr_gap = (u8 *)rxd - skb->data + 2 * remove_pad; if (hdr_trans && ieee80211_has_morefrags(fc)) { if (mt7996_reverse_frag0_hdr_trans(skb, hdr_gap)) return -EINVAL; hdr_trans = false; } else { int pad_start = 0; skb_pull(skb, hdr_gap); if (!hdr_trans && status->amsdu) { pad_start = ieee80211_get_hdrlen_from_skb(skb); } else if (hdr_trans && (rxd2 & MT_RXD2_NORMAL_HDR_TRANS_ERROR)) { /* When header translation failure is indicated, * the hardware will insert an extra 2-byte field * containing the data length after the protocol * type field. */ pad_start = 12; if (get_unaligned_be16(skb->data + pad_start) == ETH_P_8021Q) pad_start += 4; else pad_start = 0; } if (pad_start) { memmove(skb->data + 2, skb->data, pad_start); skb_pull(skb, 2); } } if (!hdr_trans) { struct ieee80211_hdr *hdr; if (insert_ccmp_hdr) { u8 key_id = FIELD_GET(MT_RXD1_NORMAL_KEY_ID, rxd1); mt76_insert_ccmp_hdr(skb, key_id); } hdr = mt76_skb_get_hdr(skb); fc = hdr->frame_control; if (ieee80211_is_data_qos(fc)) { seq_ctrl = le16_to_cpu(hdr->seq_ctrl); qos_ctl = *ieee80211_get_qos_ctl(hdr); } } else { status->flag |= RX_FLAG_8023; } if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023)) mt7996_mac_decode_he_radiotap(skb, rxv, mode); if (!status->wcid || !ieee80211_is_data_qos(fc)) return 0; status->aggr = unicast && !ieee80211_is_qos_nullfunc(fc); status->qos_ctl = qos_ctl; status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); return 0; } static void mt7996_mac_write_txwi_8023(struct mt7996_dev *dev, __le32 *txwi, struct sk_buff *skb, struct mt76_wcid *wcid) { u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; u8 fc_type, fc_stype; u16 ethertype; bool wmm = false; u32 val; if (wcid->sta) { struct ieee80211_sta *sta; sta = container_of((void *)wcid, struct ieee80211_sta, drv_priv); wmm = sta->wme; } val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_3) | FIELD_PREP(MT_TXD1_TID, tid); ethertype = get_unaligned_be16(&skb->data[12]); if (ethertype >= ETH_P_802_3_MIN) val |= MT_TXD1_ETH_802_3; txwi[1] |= cpu_to_le32(val); fc_type = IEEE80211_FTYPE_DATA >> 2; fc_stype = wmm ? IEEE80211_STYPE_QOS_DATA >> 4 : 0; val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) | FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype); txwi[2] |= cpu_to_le32(val); } static void mt7996_mac_write_txwi_80211(struct mt7996_dev *dev, __le32 *txwi, struct sk_buff *skb, struct ieee80211_key_conf *key) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); bool multicast = is_multicast_ether_addr(hdr->addr1); u8 tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK; __le16 fc = hdr->frame_control; u8 fc_type, fc_stype; u32 val; if (ieee80211_is_action(fc) && mgmt->u.action.category == WLAN_CATEGORY_BACK && mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ) tid = MT_TX_ADDBA; else if (ieee80211_is_mgmt(hdr->frame_control)) tid = MT_TX_NORMAL; val = FIELD_PREP(MT_TXD1_HDR_FORMAT, MT_HDR_FORMAT_802_11) | FIELD_PREP(MT_TXD1_HDR_INFO, ieee80211_get_hdrlen_from_skb(skb) / 2) | FIELD_PREP(MT_TXD1_TID, tid); if (!ieee80211_is_data(fc) || multicast || info->flags & IEEE80211_TX_CTL_USE_MINRATE) val |= MT_TXD1_FIXED_RATE; if (key && multicast && ieee80211_is_robust_mgmt_frame(skb) && key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { val |= MT_TXD1_BIP; txwi[3] &= ~cpu_to_le32(MT_TXD3_PROTECT_FRAME); } txwi[1] |= cpu_to_le32(val); fc_type = (le16_to_cpu(fc) & IEEE80211_FCTL_FTYPE) >> 2; fc_stype = (le16_to_cpu(fc) & IEEE80211_FCTL_STYPE) >> 4; val = FIELD_PREP(MT_TXD2_FRAME_TYPE, fc_type) | FIELD_PREP(MT_TXD2_SUB_TYPE, fc_stype); txwi[2] |= cpu_to_le32(val); txwi[3] |= cpu_to_le32(FIELD_PREP(MT_TXD3_BCM, multicast)); if (ieee80211_is_beacon(fc)) { txwi[3] &= ~cpu_to_le32(MT_TXD3_SW_POWER_MGMT); txwi[3] |= cpu_to_le32(MT_TXD3_REM_TX_COUNT); } if (info->flags & IEEE80211_TX_CTL_INJECTED) { u16 seqno = le16_to_cpu(hdr->seq_ctrl); if (ieee80211_is_back_req(hdr->frame_control)) { struct ieee80211_bar *bar; bar = (struct ieee80211_bar *)skb->data; seqno = le16_to_cpu(bar->start_seq_num); } val = MT_TXD3_SN_VALID | FIELD_PREP(MT_TXD3_SEQ, IEEE80211_SEQ_TO_SN(seqno)); txwi[3] |= cpu_to_le32(val); txwi[3] &= ~cpu_to_le32(MT_TXD3_HW_AMSDU); } } static u16 mt7996_mac_tx_rate_val(struct mt76_phy *mphy, struct ieee80211_vif *vif, bool beacon, bool mcast) { u8 mode = 0, band = mphy->chandef.chan->band; int rateidx = 0, mcast_rate; if (beacon) { struct cfg80211_bitrate_mask *mask; mask = &vif->bss_conf.beacon_tx_rate; if (hweight16(mask->control[band].he_mcs[0]) == 1) { rateidx = ffs(mask->control[band].he_mcs[0]) - 1; mode = MT_PHY_TYPE_HE_SU; goto out; } else if (hweight16(mask->control[band].vht_mcs[0]) == 1) { rateidx = ffs(mask->control[band].vht_mcs[0]) - 1; mode = MT_PHY_TYPE_VHT; goto out; } else if (hweight8(mask->control[band].ht_mcs[0]) == 1) { rateidx = ffs(mask->control[band].ht_mcs[0]) - 1; mode = MT_PHY_TYPE_HT; goto out; } else if (hweight32(mask->control[band].legacy) == 1) { rateidx = ffs(mask->control[band].legacy) - 1; goto legacy; } } mcast_rate = vif->bss_conf.mcast_rate[band]; if (mcast && mcast_rate > 0) rateidx = mcast_rate - 1; else rateidx = ffs(vif->bss_conf.basic_rates) - 1; legacy: rateidx = mt76_calculate_default_rate(mphy, rateidx); mode = rateidx >> 8; rateidx &= GENMASK(7, 0); out: return FIELD_PREP(MT_TX_RATE_IDX, rateidx) | FIELD_PREP(MT_TX_RATE_MODE, mode); } void mt7996_mac_write_txwi(struct mt7996_dev *dev, __le32 *txwi, struct sk_buff *skb, struct mt76_wcid *wcid, int pid, struct ieee80211_key_conf *key, u32 changed) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_vif *vif = info->control.vif; struct mt76_phy *mphy = &dev->mphy; u8 band_idx = (info->hw_queue & MT_TX_HW_QUEUE_PHY) >> 2; u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0; bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP; u16 tx_count = 15; u32 val; bool beacon = !!(changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)); bool inband_disc = !!(changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP | BSS_CHANGED_FILS_DISCOVERY)); if (vif) { struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; omac_idx = mvif->mt76.omac_idx; wmm_idx = mvif->mt76.wmm_idx; band_idx = mvif->mt76.band_idx; } mphy = mt76_dev_phy(&dev->mt76, band_idx); if (inband_disc) { p_fmt = MT_TX_TYPE_FW; q_idx = MT_LMAC_ALTX0; } else if (beacon) { p_fmt = MT_TX_TYPE_FW; q_idx = MT_LMAC_BCN0; } else if (skb_get_queue_mapping(skb) >= MT_TXQ_PSD) { p_fmt = MT_TX_TYPE_CT; q_idx = MT_LMAC_ALTX0; } else { p_fmt = MT_TX_TYPE_CT; q_idx = wmm_idx * MT7996_MAX_WMM_SETS + mt76_connac_lmac_mapping(skb_get_queue_mapping(skb)); } val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + MT_TXD_SIZE) | FIELD_PREP(MT_TXD0_PKT_FMT, p_fmt) | FIELD_PREP(MT_TXD0_Q_IDX, q_idx); txwi[0] = cpu_to_le32(val); val = FIELD_PREP(MT_TXD1_WLAN_IDX, wcid->idx) | FIELD_PREP(MT_TXD1_OWN_MAC, omac_idx); if (band_idx) val |= FIELD_PREP(MT_TXD1_TGID, band_idx); txwi[1] = cpu_to_le32(val); txwi[2] = 0; val = MT_TXD3_SW_POWER_MGMT | FIELD_PREP(MT_TXD3_REM_TX_COUNT, tx_count); if (key) val |= MT_TXD3_PROTECT_FRAME; if (info->flags & IEEE80211_TX_CTL_NO_ACK) val |= MT_TXD3_NO_ACK; if (wcid->amsdu) val |= MT_TXD3_HW_AMSDU; txwi[3] = cpu_to_le32(val); txwi[4] = 0; val = FIELD_PREP(MT_TXD5_PID, pid); if (pid >= MT_PACKET_ID_FIRST) val |= MT_TXD5_TX_STATUS_HOST; txwi[5] = cpu_to_le32(val); val = MT_TXD6_DIS_MAT | MT_TXD6_DAS | FIELD_PREP(MT_TXD6_MSDU_CNT, 1); txwi[6] = cpu_to_le32(val); txwi[7] = 0; if (is_8023) mt7996_mac_write_txwi_8023(dev, txwi, skb, wcid); else mt7996_mac_write_txwi_80211(dev, txwi, skb, key); if (txwi[1] & cpu_to_le32(MT_TXD1_FIXED_RATE)) { /* Fixed rata is available just for 802.11 txd */ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; bool multicast = is_multicast_ether_addr(hdr->addr1); u16 rate = mt7996_mac_tx_rate_val(mphy, vif, beacon, multicast); /* fix to bw 20 */ val = MT_TXD6_FIXED_BW | FIELD_PREP(MT_TXD6_BW, 0) | FIELD_PREP(MT_TXD6_TX_RATE, rate); txwi[6] |= cpu_to_le32(val); txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); } } int mt7996_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) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data; struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); struct ieee80211_key_conf *key = info->control.hw_key; struct ieee80211_vif *vif = info->control.vif; struct mt76_txwi_cache *t; struct mt7996_txp *txp; int id, i, pid, nbuf = tx_info->nbuf - 1; bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP; u8 *txwi = (u8 *)txwi_ptr; if (unlikely(tx_info->skb->len <= ETH_HLEN)) return -EINVAL; if (!wcid) wcid = &dev->mt76.global_wcid; if (sta) { struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; if (time_after(jiffies, msta->jiffies + HZ / 4)) { info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; msta->jiffies = jiffies; } } t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size); t->skb = tx_info->skb; id = mt76_token_consume(mdev, &t); if (id < 0) return id; pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); memset(txwi_ptr, 0, MT_TXD_SIZE); /* Transmit non qos data by 802.11 header and need to fill txd by host*/ if (!is_8023 || pid >= MT_PACKET_ID_FIRST) mt7996_mac_write_txwi(dev, txwi_ptr, tx_info->skb, wcid, pid, key, 0); txp = (struct mt7996_txp *)(txwi + MT_TXD_SIZE); for (i = 0; i < nbuf; i++) { txp->buf[i] = cpu_to_le32(tx_info->buf[i + 1].addr); txp->len[i] = cpu_to_le16(tx_info->buf[i + 1].len); } txp->nbuf = nbuf; txp->flags = cpu_to_le16(MT_CT_INFO_FROM_HOST); if (!is_8023 || pid >= MT_PACKET_ID_FIRST) txp->flags |= cpu_to_le16(MT_CT_INFO_APPLY_TXD); if (!key) txp->flags |= cpu_to_le16(MT_CT_INFO_NONE_CIPHER_FRAME); if (!is_8023 && ieee80211_is_mgmt(hdr->frame_control)) txp->flags |= cpu_to_le16(MT_CT_INFO_MGMT_FRAME); if (vif) { struct mt7996_vif *mvif = (struct mt7996_vif *)vif->drv_priv; txp->bss_idx = mvif->mt76.idx; } txp->token = cpu_to_le16(id); if (test_bit(MT_WCID_FLAG_4ADDR, &wcid->flags)) txp->rept_wds_wcid = cpu_to_le16(wcid->idx); else txp->rept_wds_wcid = cpu_to_le16(0xfff); tx_info->skb = DMA_DUMMY_DATA; /* pass partial skb header to fw */ tx_info->buf[1].len = MT_CT_PARSE_LEN; tx_info->buf[1].skip_unmap = true; tx_info->nbuf = MT_CT_DMA_BUF_NUM; return 0; } static void mt7996_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) { struct mt7996_sta *msta; u16 fc, tid; u32 val; if (!sta || !(sta->deflink.ht_cap.ht_supported || sta->deflink.he_cap.has_he)) return; tid = le32_get_bits(txwi[1], MT_TXD1_TID); if (tid >= 6) /* skip VO queue */ return; val = le32_to_cpu(txwi[2]); fc = FIELD_GET(MT_TXD2_FRAME_TYPE, val) << 2 | FIELD_GET(MT_TXD2_SUB_TYPE, val) << 4; if (unlikely(fc != (IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA))) return; msta = (struct mt7996_sta *)sta->drv_priv; if (!test_and_set_bit(tid, &msta->ampdu_state)) ieee80211_start_tx_ba_session(sta, tid, 0); } static void mt7996_txp_skb_unmap(struct mt76_dev *dev, struct mt76_txwi_cache *t) { struct mt7996_txp *txp; int i; txp = mt7996_txwi_to_txp(dev, t); for (i = 0; i < txp->nbuf; i++) dma_unmap_single(dev->dev, le32_to_cpu(txp->buf[i]), le16_to_cpu(txp->len[i]), DMA_TO_DEVICE); } static void mt7996_txwi_free(struct mt7996_dev *dev, struct mt76_txwi_cache *t, struct ieee80211_sta *sta, struct list_head *free_list) { struct mt76_dev *mdev = &dev->mt76; struct mt76_wcid *wcid; __le32 *txwi; u16 wcid_idx; mt7996_txp_skb_unmap(mdev, t); if (!t->skb) goto out; txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t); if (sta) { wcid = (struct mt76_wcid *)sta->drv_priv; wcid_idx = wcid->idx; if (likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE))) mt7996_tx_check_aggr(sta, txwi); } else { wcid_idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); } __mt76_tx_complete_skb(mdev, wcid_idx, t->skb, free_list); out: t->skb = NULL; mt76_put_txwi(mdev, t); } static void mt7996_mac_tx_free(struct mt7996_dev *dev, void *data, int len) { __le32 *tx_free = (__le32 *)data, *cur_info; struct mt76_dev *mdev = &dev->mt76; struct mt76_phy *phy2 = mdev->phys[MT_BAND1]; struct mt76_phy *phy3 = mdev->phys[MT_BAND2]; struct mt76_txwi_cache *txwi; struct ieee80211_sta *sta = NULL; LIST_HEAD(free_list); struct sk_buff *skb, *tmp; void *end = data + len; bool wake = false; u16 total, count = 0; /* clean DMA queues and unmap buffers first */ mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_PSD], false); mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[MT_TXQ_BE], false); if (phy2) { mt76_queue_tx_cleanup(dev, phy2->q_tx[MT_TXQ_PSD], false); mt76_queue_tx_cleanup(dev, phy2->q_tx[MT_TXQ_BE], false); } if (phy3) { mt76_queue_tx_cleanup(dev, phy3->q_tx[MT_TXQ_PSD], false); mt76_queue_tx_cleanup(dev, phy3->q_tx[MT_TXQ_BE], false); } if (WARN_ON_ONCE(le32_get_bits(tx_free[1], MT_TXFREE1_VER) < 4)) return; total = le32_get_bits(tx_free[0], MT_TXFREE0_MSDU_CNT); for (cur_info = &tx_free[2]; count < total; cur_info++) { u32 msdu, info; u8 i; if (WARN_ON_ONCE((void *)cur_info >= end)) return; /* 1'b1: new wcid pair. * 1'b0: msdu_id with the same 'wcid pair' as above. */ info = le32_to_cpu(*cur_info); if (info & MT_TXFREE_INFO_PAIR) { struct mt7996_sta *msta; struct mt76_wcid *wcid; u16 idx; idx = FIELD_GET(MT_TXFREE_INFO_WLAN_ID, info); wcid = rcu_dereference(dev->mt76.wcid[idx]); sta = wcid_to_sta(wcid); if (!sta) continue; msta = container_of(wcid, struct mt7996_sta, wcid); spin_lock_bh(&dev->sta_poll_lock); if (list_empty(&msta->poll_list)) list_add_tail(&msta->poll_list, &dev->sta_poll_list); spin_unlock_bh(&dev->sta_poll_lock); continue; } if (info & MT_TXFREE_INFO_HEADER) continue; for (i = 0; i < 2; i++) { msdu = (info >> (15 * i)) & MT_TXFREE_INFO_MSDU_ID; if (msdu == MT_TXFREE_INFO_MSDU_ID) continue; count++; txwi = mt76_token_release(mdev, msdu, &wake); if (!txwi) continue; mt7996_txwi_free(dev, txwi, sta, &free_list); } } mt7996_mac_sta_poll(dev); if (wake) mt76_set_tx_blocked(&dev->mt76, false); mt76_worker_schedule(&dev->mt76.tx_worker); list_for_each_entry_safe(skb, tmp, &free_list, list) { skb_list_del_init(skb); napi_consume_skb(skb, 1); } } static bool mt7996_mac_add_txs_skb(struct mt7996_dev *dev, struct mt76_wcid *wcid, int pid, __le32 *txs_data, struct mt76_sta_stats *stats) { struct ieee80211_supported_band *sband; struct mt76_dev *mdev = &dev->mt76; struct mt76_phy *mphy; struct ieee80211_tx_info *info; struct sk_buff_head list; struct rate_info rate = {}; struct sk_buff *skb; bool cck = false; u32 txrate, txs, mode, stbc; mt76_tx_status_lock(mdev, &list); skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list); if (!skb) goto out_no_skb; txs = le32_to_cpu(txs_data[0]); info = IEEE80211_SKB_CB(skb); if (!(txs & MT_TXS0_ACK_ERROR_MASK)) info->flags |= IEEE80211_TX_STAT_ACK; info->status.ampdu_len = 1; info->status.ampdu_ack_len = !!(info->flags & IEEE80211_TX_STAT_ACK); info->status.rates[0].idx = -1; txrate = FIELD_GET(MT_TXS0_TX_RATE, txs); rate.mcs = FIELD_GET(MT_TX_RATE_IDX, txrate); rate.nss = FIELD_GET(MT_TX_RATE_NSS, txrate) + 1; stbc = le32_get_bits(txs_data[3], MT_TXS3_RATE_STBC); if (stbc && rate.nss > 1) rate.nss >>= 1; if (rate.nss - 1 < ARRAY_SIZE(stats->tx_nss)) stats->tx_nss[rate.nss - 1]++; if (rate.mcs < ARRAY_SIZE(stats->tx_mcs)) stats->tx_mcs[rate.mcs]++; mode = FIELD_GET(MT_TX_RATE_MODE, txrate); switch (mode) { case MT_PHY_TYPE_CCK: cck = true; fallthrough; case MT_PHY_TYPE_OFDM: mphy = mt76_dev_phy(mdev, wcid->phy_idx); if (mphy->chandef.chan->band == NL80211_BAND_5GHZ) sband = &mphy->sband_5g.sband; else if (mphy->chandef.chan->band == NL80211_BAND_6GHZ) sband = &mphy->sband_6g.sband; else sband = &mphy->sband_2g.sband; rate.mcs = mt76_get_rate(mphy->dev, sband, rate.mcs, cck); rate.legacy = sband->bitrates[rate.mcs].bitrate; break; case MT_PHY_TYPE_HT: case MT_PHY_TYPE_HT_GF: if (rate.mcs > 31) goto out; rate.flags = RATE_INFO_FLAGS_MCS; if (wcid->rate.flags & RATE_INFO_FLAGS_SHORT_GI) rate.flags |= RATE_INFO_FLAGS_SHORT_GI; break; case MT_PHY_TYPE_VHT: if (rate.mcs > 9) goto out; rate.flags = RATE_INFO_FLAGS_VHT_MCS; break; case MT_PHY_TYPE_HE_SU: case MT_PHY_TYPE_HE_EXT_SU: case MT_PHY_TYPE_HE_TB: case MT_PHY_TYPE_HE_MU: if (rate.mcs > 11) goto out; rate.he_gi = wcid->rate.he_gi; rate.he_dcm = FIELD_GET(MT_TX_RATE_DCM, txrate); rate.flags = RATE_INFO_FLAGS_HE_MCS; break; default: goto out; } stats->tx_mode[mode]++; switch (FIELD_GET(MT_TXS0_BW, txs)) { case IEEE80211_STA_RX_BW_160: rate.bw = RATE_INFO_BW_160; stats->tx_bw[3]++; break; case IEEE80211_STA_RX_BW_80: rate.bw = RATE_INFO_BW_80; stats->tx_bw[2]++; break; case IEEE80211_STA_RX_BW_40: rate.bw = RATE_INFO_BW_40; stats->tx_bw[1]++; break; default: rate.bw = RATE_INFO_BW_20; stats->tx_bw[0]++; break; } wcid->rate = rate; out: mt76_tx_status_skb_done(mdev, skb, &list); out_no_skb: mt76_tx_status_unlock(mdev, &list); return !!skb; } static void mt7996_mac_add_txs(struct mt7996_dev *dev, void *data) { struct mt7996_sta *msta = NULL; struct mt76_wcid *wcid; __le32 *txs_data = data; u16 wcidx; u8 pid; if (le32_get_bits(txs_data[0], MT_TXS0_TXS_FORMAT) > 1) return; wcidx = le32_get_bits(txs_data[2], MT_TXS2_WCID); pid = le32_get_bits(txs_data[3], MT_TXS3_PID); if (pid < MT_PACKET_ID_FIRST) return; if (wcidx >= MT7996_WTBL_SIZE) return; rcu_read_lock(); wcid = rcu_dereference(dev->mt76.wcid[wcidx]); if (!wcid) goto out; msta = container_of(wcid, struct mt7996_sta, wcid); mt7996_mac_add_txs_skb(dev, wcid, pid, txs_data, &msta->stats); if (!wcid->sta) goto out; spin_lock_bh(&dev->sta_poll_lock); if (list_empty(&msta->poll_list)) list_add_tail(&msta->poll_list, &dev->sta_poll_list); spin_unlock_bh(&dev->sta_poll_lock); out: rcu_read_unlock(); } bool mt7996_rx_check(struct mt76_dev *mdev, void *data, int len) { struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76); __le32 *rxd = (__le32 *)data; __le32 *end = (__le32 *)&rxd[len / 4]; enum rx_pkt_type type; type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); if (type != PKT_TYPE_NORMAL) { u32 sw_type = le32_get_bits(rxd[0], MT_RXD0_SW_PKT_TYPE_MASK); if (unlikely((sw_type & MT_RXD0_SW_PKT_TYPE_MAP) == MT_RXD0_SW_PKT_TYPE_FRAME)) return true; } switch (type) { case PKT_TYPE_TXRX_NOTIFY: mt7996_mac_tx_free(dev, data, len); return false; case PKT_TYPE_TXS: for (rxd += 4; rxd + 8 <= end; rxd += 8) mt7996_mac_add_txs(dev, rxd); return false; case PKT_TYPE_RX_FW_MONITOR: mt7996_debugfs_rx_fw_monitor(dev, data, len); return false; default: return true; } } void mt7996_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, struct sk_buff *skb, u32 *info) { struct mt7996_dev *dev = container_of(mdev, struct mt7996_dev, mt76); __le32 *rxd = (__le32 *)skb->data; __le32 *end = (__le32 *)&skb->data[skb->len]; enum rx_pkt_type type; type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); if (type != PKT_TYPE_NORMAL) { u32 sw_type = le32_get_bits(rxd[0], MT_RXD0_SW_PKT_TYPE_MASK); if (unlikely((sw_type & MT_RXD0_SW_PKT_TYPE_MAP) == MT_RXD0_SW_PKT_TYPE_FRAME)) type = PKT_TYPE_NORMAL; } switch (type) { case PKT_TYPE_TXRX_NOTIFY: mt7996_mac_tx_free(dev, skb->data, skb->len); napi_consume_skb(skb, 1); break; case PKT_TYPE_RX_EVENT: mt7996_mcu_rx_event(dev, skb); break; case PKT_TYPE_TXS: for (rxd += 4; rxd + 8 <= end; rxd += 8) mt7996_mac_add_txs(dev, rxd); dev_kfree_skb(skb); break; case PKT_TYPE_RX_FW_MONITOR: mt7996_debugfs_rx_fw_monitor(dev, skb->data, skb->len); dev_kfree_skb(skb); break; case PKT_TYPE_NORMAL: if (!mt7996_mac_fill_rx(dev, skb)) { mt76_rx(&dev->mt76, q, skb); return; } fallthrough; default: dev_kfree_skb(skb); break; } } void mt7996_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e) { if (!e->txwi) { dev_kfree_skb_any(e->skb); return; } /* error path */ if (e->skb == DMA_DUMMY_DATA) { struct mt76_txwi_cache *t; struct mt7996_txp *txp; txp = mt7996_txwi_to_txp(mdev, e->txwi); t = mt76_token_put(mdev, le16_to_cpu(txp->token)); e->skb = t ? t->skb : NULL; } if (e->skb) mt76_tx_complete_skb(mdev, e->wcid, e->skb); } void mt7996_mac_cca_stats_reset(struct mt7996_phy *phy) { struct mt7996_dev *dev = phy->dev; u32 reg = MT_WF_PHYRX_BAND_RX_CTRL1(phy->mt76->band_idx); mt76_clear(dev, reg, MT_WF_PHYRX_BAND_RX_CTRL1_STSCNT_EN); mt76_set(dev, reg, BIT(11) | BIT(9)); } void mt7996_mac_reset_counters(struct mt7996_phy *phy) { struct mt7996_dev *dev = phy->dev; u8 band_idx = phy->mt76->band_idx; int i; for (i = 0; i < 16; i++) mt76_rr(dev, MT_TX_AGG_CNT(band_idx, i)); phy->mt76->survey_time = ktime_get_boottime(); memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats)); /* reset airtime counters */ mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(band_idx), MT_WF_RMAC_MIB_RXTIME_CLR); mt7996_mcu_get_chan_mib_info(phy, true); } void mt7996_mac_set_timing(struct mt7996_phy *phy) { s16 coverage_class = phy->coverage_class; struct mt7996_dev *dev = phy->dev; struct mt7996_phy *phy2 = mt7996_phy2(dev); struct mt7996_phy *phy3 = mt7996_phy3(dev); u32 val, reg_offset; u32 cck = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 231) | FIELD_PREP(MT_TIMEOUT_VAL_CCA, 48); u32 ofdm = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, 60) | FIELD_PREP(MT_TIMEOUT_VAL_CCA, 28); u8 band_idx = phy->mt76->band_idx; int offset; bool a_band = !(phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ); if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) return; if (phy2) coverage_class = max_t(s16, dev->phy.coverage_class, phy2->coverage_class); if (phy3) coverage_class = max_t(s16, coverage_class, phy3->coverage_class); mt76_set(dev, MT_ARB_SCR(band_idx), MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); udelay(1); offset = 3 * coverage_class; reg_offset = FIELD_PREP(MT_TIMEOUT_VAL_PLCP, offset) | FIELD_PREP(MT_TIMEOUT_VAL_CCA, offset); mt76_wr(dev, MT_TMAC_CDTR(band_idx), cck + reg_offset); mt76_wr(dev, MT_TMAC_ODTR(band_idx), ofdm + reg_offset); mt76_wr(dev, MT_TMAC_ICR0(band_idx), FIELD_PREP(MT_IFS_EIFS_OFDM, a_band ? 84 : 78) | FIELD_PREP(MT_IFS_RIFS, 2) | FIELD_PREP(MT_IFS_SIFS, 10) | FIELD_PREP(MT_IFS_SLOT, phy->slottime)); if (!a_band) mt76_wr(dev, MT_TMAC_ICR1(band_idx), FIELD_PREP(MT_IFS_EIFS_CCK, 314)); if (phy->slottime < 20 || a_band) val = MT7996_CFEND_RATE_DEFAULT; else val = MT7996_CFEND_RATE_11B; mt76_rmw_field(dev, MT_AGG_ACR0(band_idx), MT_AGG_ACR_CFEND_RATE, val); mt76_clear(dev, MT_ARB_SCR(band_idx), MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); } void mt7996_mac_enable_nf(struct mt7996_dev *dev, u8 band) { mt76_set(dev, MT_WF_PHYRX_CSD_BAND_RXTD12(band), MT_WF_PHYRX_CSD_BAND_RXTD12_IRPI_SW_CLR_ONLY | MT_WF_PHYRX_CSD_BAND_RXTD12_IRPI_SW_CLR); mt76_set(dev, MT_WF_PHYRX_BAND_RX_CTRL1(band), FIELD_PREP(MT_WF_PHYRX_BAND_RX_CTRL1_IPI_EN, 0x5)); } static u8 mt7996_phy_get_nf(struct mt7996_phy *phy, u8 band_idx) { static const u8 nf_power[] = { 92, 89, 86, 83, 80, 75, 70, 65, 60, 55, 52 }; struct mt7996_dev *dev = phy->dev; u32 val, sum = 0, n = 0; int ant, i; for (ant = 0; ant < hweight8(phy->mt76->antenna_mask); ant++) { u32 reg = MT_WF_PHYRX_CSD_IRPI(band_idx, ant); for (i = 0; i < ARRAY_SIZE(nf_power); i++, reg += 4) { val = mt76_rr(dev, reg); sum += val * nf_power[i]; n += val; } } return n ? sum / n : 0; } void mt7996_update_channel(struct mt76_phy *mphy) { struct mt7996_phy *phy = (struct mt7996_phy *)mphy->priv; struct mt76_channel_state *state = mphy->chan_state; int nf; mt7996_mcu_get_chan_mib_info(phy, false); nf = mt7996_phy_get_nf(phy, mphy->band_idx); if (!phy->noise) phy->noise = nf << 4; else if (nf) phy->noise += nf - (phy->noise >> 4); state->noise = -(phy->noise >> 4); } static bool mt7996_wait_reset_state(struct mt7996_dev *dev, u32 state) { bool ret; ret = wait_event_timeout(dev->reset_wait, (READ_ONCE(dev->reset_state) & state), MT7996_RESET_TIMEOUT); WARN(!ret, "Timeout waiting for MCU reset state %x\n", state); return ret; } static void mt7996_update_vif_beacon(void *priv, u8 *mac, struct ieee80211_vif *vif) { struct ieee80211_hw *hw = priv; switch (vif->type) { case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_AP: mt7996_mcu_add_beacon(hw, vif, vif->bss_conf.enable_beacon); break; default: break; } } static void mt7996_update_beacons(struct mt7996_dev *dev) { struct mt76_phy *phy2, *phy3; ieee80211_iterate_active_interfaces(dev->mt76.hw, IEEE80211_IFACE_ITER_RESUME_ALL, mt7996_update_vif_beacon, dev->mt76.hw); phy2 = dev->mt76.phys[MT_BAND1]; if (!phy2) return; ieee80211_iterate_active_interfaces(phy2->hw, IEEE80211_IFACE_ITER_RESUME_ALL, mt7996_update_vif_beacon, phy2->hw); phy3 = dev->mt76.phys[MT_BAND2]; if (!phy3) return; ieee80211_iterate_active_interfaces(phy3->hw, IEEE80211_IFACE_ITER_RESUME_ALL, mt7996_update_vif_beacon, phy3->hw); } static void mt7996_dma_reset(struct mt7996_dev *dev) { struct mt76_phy *phy2 = dev->mt76.phys[MT_BAND1]; struct mt76_phy *phy3 = dev->mt76.phys[MT_BAND2]; u32 hif1_ofs = MT_WFDMA0_PCIE1(0) - MT_WFDMA0(0); int i; mt76_clear(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); if (dev->hif2) mt76_clear(dev, MT_WFDMA0_GLO_CFG + hif1_ofs, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); usleep_range(1000, 2000); for (i = 0; i < __MT_TXQ_MAX; i++) { mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true); if (phy2) mt76_queue_tx_cleanup(dev, phy2->q_tx[i], true); if (phy3) mt76_queue_tx_cleanup(dev, phy3->q_tx[i], true); } for (i = 0; i < __MT_MCUQ_MAX; i++) mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[i], true); mt76_for_each_q_rx(&dev->mt76, i) mt76_queue_rx_reset(dev, i); mt76_tx_status_check(&dev->mt76, true); /* re-init prefetch settings after reset */ mt7996_dma_prefetch(dev); mt76_set(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); if (dev->hif2) mt76_set(dev, MT_WFDMA0_GLO_CFG + hif1_ofs, MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN); } void mt7996_tx_token_put(struct mt7996_dev *dev) { struct mt76_txwi_cache *txwi; int id; spin_lock_bh(&dev->mt76.token_lock); idr_for_each_entry(&dev->mt76.token, txwi, id) { mt7996_txwi_free(dev, txwi, NULL, NULL); dev->mt76.token_count--; } spin_unlock_bh(&dev->mt76.token_lock); idr_destroy(&dev->mt76.token); } /* system error recovery */ void mt7996_mac_reset_work(struct work_struct *work) { struct mt7996_phy *phy2, *phy3; struct mt7996_dev *dev; int i; dev = container_of(work, struct mt7996_dev, reset_work); phy2 = mt7996_phy2(dev); phy3 = mt7996_phy3(dev); if (!(READ_ONCE(dev->reset_state) & MT_MCU_CMD_STOP_DMA)) return; ieee80211_stop_queues(mt76_hw(dev)); if (phy2) ieee80211_stop_queues(phy2->mt76->hw); if (phy3) ieee80211_stop_queues(phy3->mt76->hw); set_bit(MT76_RESET, &dev->mphy.state); set_bit(MT76_MCU_RESET, &dev->mphy.state); wake_up(&dev->mt76.mcu.wait); cancel_delayed_work_sync(&dev->mphy.mac_work); if (phy2) { set_bit(MT76_RESET, &phy2->mt76->state); cancel_delayed_work_sync(&phy2->mt76->mac_work); } if (phy3) { set_bit(MT76_RESET, &phy3->mt76->state); cancel_delayed_work_sync(&phy3->mt76->mac_work); } mt76_worker_disable(&dev->mt76.tx_worker); mt76_for_each_q_rx(&dev->mt76, i) napi_disable(&dev->mt76.napi[i]); napi_disable(&dev->mt76.tx_napi); mutex_lock(&dev->mt76.mutex); mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_STOPPED); if (mt7996_wait_reset_state(dev, MT_MCU_CMD_RESET_DONE)) { mt7996_dma_reset(dev); mt7996_tx_token_put(dev); idr_init(&dev->mt76.token); mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_DMA_INIT); mt7996_wait_reset_state(dev, MT_MCU_CMD_RECOVERY_DONE); } clear_bit(MT76_MCU_RESET, &dev->mphy.state); clear_bit(MT76_RESET, &dev->mphy.state); if (phy2) clear_bit(MT76_RESET, &phy2->mt76->state); if (phy3) clear_bit(MT76_RESET, &phy3->mt76->state); local_bh_disable(); mt76_for_each_q_rx(&dev->mt76, i) { napi_enable(&dev->mt76.napi[i]); napi_schedule(&dev->mt76.napi[i]); } local_bh_enable(); tasklet_schedule(&dev->irq_tasklet); mt76_wr(dev, MT_MCU_INT_EVENT, MT_MCU_INT_EVENT_RESET_DONE); mt7996_wait_reset_state(dev, MT_MCU_CMD_NORMAL_STATE); mt76_worker_enable(&dev->mt76.tx_worker); local_bh_disable(); napi_enable(&dev->mt76.tx_napi); napi_schedule(&dev->mt76.tx_napi); local_bh_enable(); ieee80211_wake_queues(mt76_hw(dev)); if (phy2) ieee80211_wake_queues(phy2->mt76->hw); if (phy3) ieee80211_wake_queues(phy3->mt76->hw); mutex_unlock(&dev->mt76.mutex); mt7996_update_beacons(dev); ieee80211_queue_delayed_work(mt76_hw(dev), &dev->mphy.mac_work, MT7996_WATCHDOG_TIME); if (phy2) ieee80211_queue_delayed_work(phy2->mt76->hw, &phy2->mt76->mac_work, MT7996_WATCHDOG_TIME); if (phy3) ieee80211_queue_delayed_work(phy3->mt76->hw, &phy3->mt76->mac_work, MT7996_WATCHDOG_TIME); } void mt7996_mac_update_stats(struct mt7996_phy *phy) { struct mt7996_dev *dev = phy->dev; struct mib_stats *mib = &phy->mib; u8 band_idx = phy->mt76->band_idx; u32 cnt; int i; cnt = mt76_rr(dev, MT_MIB_RSCR1(band_idx)); mib->fcs_err_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR33(band_idx)); mib->rx_fifo_full_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR31(band_idx)); mib->rx_mpdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_SDR6(band_idx)); mib->channel_idle_cnt += FIELD_GET(MT_MIB_SDR6_CHANNEL_IDL_CNT_MASK, cnt); cnt = mt76_rr(dev, MT_MIB_RVSR0(band_idx)); mib->rx_vector_mismatch_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR35(band_idx)); mib->rx_delimiter_fail_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR36(band_idx)); mib->rx_len_mismatch_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR0(band_idx)); mib->tx_ampdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR2(band_idx)); mib->tx_stop_q_empty_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR3(band_idx)); mib->tx_mpdu_attempts_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR4(band_idx)); mib->tx_mpdu_success_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR27(band_idx)); mib->rx_ampdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR28(band_idx)); mib->rx_ampdu_bytes_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR29(band_idx)); mib->rx_ampdu_valid_subframe_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RSCR30(band_idx)); mib->rx_ampdu_valid_subframe_bytes_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_SDR27(band_idx)); mib->tx_rwp_fail_cnt += FIELD_GET(MT_MIB_SDR27_TX_RWP_FAIL_CNT, cnt); cnt = mt76_rr(dev, MT_MIB_SDR28(band_idx)); mib->tx_rwp_need_cnt += FIELD_GET(MT_MIB_SDR28_TX_RWP_NEED_CNT, cnt); cnt = mt76_rr(dev, MT_UMIB_RPDCR(band_idx)); mib->rx_pfdrop_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_RVSR1(band_idx)); mib->rx_vec_queue_overflow_drop_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR1(band_idx)); mib->rx_ba_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR0(band_idx)); mib->tx_bf_ebf_ppdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR1(band_idx)); mib->tx_bf_ibf_ppdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR2(band_idx)); mib->tx_mu_bf_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR5(band_idx)); mib->tx_mu_mpdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR6(band_idx)); mib->tx_mu_acked_mpdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_TSCR7(band_idx)); mib->tx_su_acked_mpdu_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR3(band_idx)); mib->tx_bf_rx_fb_ht_cnt += cnt; mib->tx_bf_rx_fb_all_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR4(band_idx)); mib->tx_bf_rx_fb_vht_cnt += cnt; mib->tx_bf_rx_fb_all_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR5(band_idx)); mib->tx_bf_rx_fb_he_cnt += cnt; mib->tx_bf_rx_fb_all_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR6(band_idx)); mib->tx_bf_rx_fb_eht_cnt += cnt; mib->tx_bf_rx_fb_all_cnt += cnt; cnt = mt76_rr(dev, MT_ETBF_RX_FB_CONT(band_idx)); mib->tx_bf_rx_fb_bw = FIELD_GET(MT_ETBF_RX_FB_BW, cnt); mib->tx_bf_rx_fb_nc_cnt += FIELD_GET(MT_ETBF_RX_FB_NC, cnt); mib->tx_bf_rx_fb_nr_cnt += FIELD_GET(MT_ETBF_RX_FB_NR, cnt); cnt = mt76_rr(dev, MT_MIB_BSCR7(band_idx)); mib->tx_bf_fb_trig_cnt += cnt; cnt = mt76_rr(dev, MT_MIB_BSCR17(band_idx)); mib->tx_bf_fb_cpl_cnt += cnt; for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) { cnt = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i)); mib->tx_amsdu[i] += cnt; mib->tx_amsdu_cnt += cnt; } /* rts count */ cnt = mt76_rr(dev, MT_MIB_BTSCR5(band_idx)); mib->rts_cnt += cnt; /* rts retry count */ cnt = mt76_rr(dev, MT_MIB_BTSCR6(band_idx)); mib->rts_retries_cnt += cnt; /* ba miss count */ cnt = mt76_rr(dev, MT_MIB_BTSCR0(band_idx)); mib->ba_miss_cnt += cnt; /* ack fail count */ cnt = mt76_rr(dev, MT_MIB_BFTFCR(band_idx)); mib->ack_fail_cnt += cnt; for (i = 0; i < 16; i++) { cnt = mt76_rr(dev, MT_TX_AGG_CNT(band_idx, i)); phy->mt76->aggr_stats[i] += cnt; } } void mt7996_mac_sta_rc_work(struct work_struct *work) { struct mt7996_dev *dev = container_of(work, struct mt7996_dev, rc_work); struct ieee80211_sta *sta; struct ieee80211_vif *vif; struct mt7996_sta *msta; u32 changed; LIST_HEAD(list); spin_lock_bh(&dev->sta_poll_lock); list_splice_init(&dev->sta_rc_list, &list); while (!list_empty(&list)) { msta = list_first_entry(&list, struct mt7996_sta, rc_list); list_del_init(&msta->rc_list); changed = msta->changed; msta->changed = 0; spin_unlock_bh(&dev->sta_poll_lock); sta = container_of((void *)msta, struct ieee80211_sta, drv_priv); vif = container_of((void *)msta->vif, struct ieee80211_vif, drv_priv); if (changed & (IEEE80211_RC_SUPP_RATES_CHANGED | IEEE80211_RC_NSS_CHANGED | IEEE80211_RC_BW_CHANGED)) mt7996_mcu_add_rate_ctrl(dev, vif, sta, true); /* TODO: smps change */ spin_lock_bh(&dev->sta_poll_lock); } spin_unlock_bh(&dev->sta_poll_lock); } void mt7996_mac_work(struct work_struct *work) { struct mt7996_phy *phy; struct mt76_phy *mphy; mphy = (struct mt76_phy *)container_of(work, struct mt76_phy, mac_work.work); phy = mphy->priv; mutex_lock(&mphy->dev->mutex); mt76_update_survey(mphy); if (++mphy->mac_work_count == 5) { mphy->mac_work_count = 0; mt7996_mac_update_stats(phy); } mutex_unlock(&mphy->dev->mutex); mt76_tx_status_check(mphy->dev, false); ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, MT7996_WATCHDOG_TIME); } static void mt7996_dfs_stop_radar_detector(struct mt7996_phy *phy) { struct mt7996_dev *dev = phy->dev; if (phy->rdd_state & BIT(0)) mt7996_mcu_rdd_cmd(dev, RDD_STOP, 0, MT_RX_SEL0, 0); if (phy->rdd_state & BIT(1)) mt7996_mcu_rdd_cmd(dev, RDD_STOP, 1, MT_RX_SEL0, 0); } static int mt7996_dfs_start_rdd(struct mt7996_dev *dev, int chain) { int err, region; switch (dev->mt76.region) { case NL80211_DFS_ETSI: region = 0; break; case NL80211_DFS_JP: region = 2; break; case NL80211_DFS_FCC: default: region = 1; break; } err = mt7996_mcu_rdd_cmd(dev, RDD_START, chain, MT_RX_SEL0, region); if (err < 0) return err; return mt7996_mcu_rdd_cmd(dev, RDD_DET_MODE, chain, MT_RX_SEL0, 1); } static int mt7996_dfs_start_radar_detector(struct mt7996_phy *phy) { struct cfg80211_chan_def *chandef = &phy->mt76->chandef; struct mt7996_dev *dev = phy->dev; u8 band_idx = phy->mt76->band_idx; int err; /* start CAC */ err = mt7996_mcu_rdd_cmd(dev, RDD_CAC_START, band_idx, MT_RX_SEL0, 0); if (err < 0) return err; err = mt7996_dfs_start_rdd(dev, band_idx); if (err < 0) return err; phy->rdd_state |= BIT(band_idx); if (chandef->width == NL80211_CHAN_WIDTH_160 || chandef->width == NL80211_CHAN_WIDTH_80P80) { err = mt7996_dfs_start_rdd(dev, 1); if (err < 0) return err; phy->rdd_state |= BIT(1); } return 0; } static int mt7996_dfs_init_radar_specs(struct mt7996_phy *phy) { const struct mt7996_dfs_radar_spec *radar_specs; struct mt7996_dev *dev = phy->dev; int err, i; switch (dev->mt76.region) { case NL80211_DFS_FCC: radar_specs = &fcc_radar_specs; err = mt7996_mcu_set_fcc5_lpn(dev, 8); if (err < 0) return err; break; case NL80211_DFS_ETSI: radar_specs = &etsi_radar_specs; break; case NL80211_DFS_JP: radar_specs = &jp_radar_specs; break; default: return -EINVAL; } for (i = 0; i < ARRAY_SIZE(radar_specs->radar_pattern); i++) { err = mt7996_mcu_set_radar_th(dev, i, &radar_specs->radar_pattern[i]); if (err < 0) return err; } return mt7996_mcu_set_pulse_th(dev, &radar_specs->pulse_th); } int mt7996_dfs_init_radar_detector(struct mt7996_phy *phy) { struct mt7996_dev *dev = phy->dev; enum mt76_dfs_state dfs_state, prev_state; int err; prev_state = phy->mt76->dfs_state; dfs_state = mt76_phy_dfs_state(phy->mt76); if (prev_state == dfs_state) return 0; if (prev_state == MT_DFS_STATE_UNKNOWN) mt7996_dfs_stop_radar_detector(phy); if (dfs_state == MT_DFS_STATE_DISABLED) goto stop; if (prev_state <= MT_DFS_STATE_DISABLED) { err = mt7996_dfs_init_radar_specs(phy); if (err < 0) return err; err = mt7996_dfs_start_radar_detector(phy); if (err < 0) return err; phy->mt76->dfs_state = MT_DFS_STATE_CAC; } if (dfs_state == MT_DFS_STATE_CAC) return 0; err = mt7996_mcu_rdd_cmd(dev, RDD_CAC_END, phy->mt76->band_idx, MT_RX_SEL0, 0); if (err < 0) { phy->mt76->dfs_state = MT_DFS_STATE_UNKNOWN; return err; } phy->mt76->dfs_state = MT_DFS_STATE_ACTIVE; return 0; stop: err = mt7996_mcu_rdd_cmd(dev, RDD_NORMAL_START, phy->mt76->band_idx, MT_RX_SEL0, 0); if (err < 0) return err; mt7996_dfs_stop_radar_detector(phy); phy->mt76->dfs_state = MT_DFS_STATE_DISABLED; return 0; } static int mt7996_mac_twt_duration_align(int duration) { return duration << 8; } static u64 mt7996_mac_twt_sched_list_add(struct mt7996_dev *dev, struct mt7996_twt_flow *flow) { struct mt7996_twt_flow *iter, *iter_next; u32 duration = flow->duration << 8; u64 start_tsf; iter = list_first_entry_or_null(&dev->twt_list, struct mt7996_twt_flow, list); if (!iter || !iter->sched || iter->start_tsf > duration) { /* add flow as first entry in the list */ list_add(&flow->list, &dev->twt_list); return 0; } list_for_each_entry_safe(iter, iter_next, &dev->twt_list, list) { start_tsf = iter->start_tsf + mt7996_mac_twt_duration_align(iter->duration); if (list_is_last(&iter->list, &dev->twt_list)) break; if (!iter_next->sched || iter_next->start_tsf > start_tsf + duration) { list_add(&flow->list, &iter->list); goto out; } } /* add flow as last entry in the list */ list_add_tail(&flow->list, &dev->twt_list); out: return start_tsf; } static int mt7996_mac_check_twt_req(struct ieee80211_twt_setup *twt) { struct ieee80211_twt_params *twt_agrt; u64 interval, duration; u16 mantissa; u8 exp; /* only individual agreement supported */ if (twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST) return -EOPNOTSUPP; /* only 256us unit supported */ if (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) return -EOPNOTSUPP; twt_agrt = (struct ieee80211_twt_params *)twt->params; /* explicit agreement not supported */ if (!(twt_agrt->req_type & cpu_to_le16(IEEE80211_TWT_REQTYPE_IMPLICIT))) return -EOPNOTSUPP; exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, le16_to_cpu(twt_agrt->req_type)); mantissa = le16_to_cpu(twt_agrt->mantissa); duration = twt_agrt->min_twt_dur << 8; interval = (u64)mantissa << exp; if (interval < duration) return -EOPNOTSUPP; return 0; } void mt7996_mac_add_twt_setup(struct ieee80211_hw *hw, struct ieee80211_sta *sta, struct ieee80211_twt_setup *twt) { enum ieee80211_twt_setup_cmd setup_cmd = TWT_SETUP_CMD_REJECT; struct mt7996_sta *msta = (struct mt7996_sta *)sta->drv_priv; struct ieee80211_twt_params *twt_agrt = (void *)twt->params; u16 req_type = le16_to_cpu(twt_agrt->req_type); enum ieee80211_twt_setup_cmd sta_setup_cmd; struct mt7996_dev *dev = mt7996_hw_dev(hw); struct mt7996_twt_flow *flow; int flowid, table_id; u8 exp; if (mt7996_mac_check_twt_req(twt)) goto out; mutex_lock(&dev->mt76.mutex); if (dev->twt.n_agrt == MT7996_MAX_TWT_AGRT) goto unlock; if (hweight8(msta->twt.flowid_mask) == ARRAY_SIZE(msta->twt.flow)) goto unlock; flowid = ffs(~msta->twt.flowid_mask) - 1; le16p_replace_bits(&twt_agrt->req_type, flowid, IEEE80211_TWT_REQTYPE_FLOWID); table_id = ffs(~dev->twt.table_mask) - 1; exp = FIELD_GET(IEEE80211_TWT_REQTYPE_WAKE_INT_EXP, req_type); sta_setup_cmd = FIELD_GET(IEEE80211_TWT_REQTYPE_SETUP_CMD, req_type); flow = &msta->twt.flow[flowid]; memset(flow, 0, sizeof(*flow)); INIT_LIST_HEAD(&flow->list); flow->wcid = msta->wcid.idx; flow->table_id = table_id; flow->id = flowid; flow->duration = twt_agrt->min_twt_dur; flow->mantissa = twt_agrt->mantissa; flow->exp = exp; flow->protection = !!(req_type & IEEE80211_TWT_REQTYPE_PROTECTION); flow->flowtype = !!(req_type & IEEE80211_TWT_REQTYPE_FLOWTYPE); flow->trigger = !!(req_type & IEEE80211_TWT_REQTYPE_TRIGGER); if (sta_setup_cmd == TWT_SETUP_CMD_REQUEST || sta_setup_cmd == TWT_SETUP_CMD_SUGGEST) { u64 interval = (u64)le16_to_cpu(twt_agrt->mantissa) << exp; u64 flow_tsf, curr_tsf; u32 rem; flow->sched = true; flow->start_tsf = mt7996_mac_twt_sched_list_add(dev, flow); curr_tsf = __mt7996_get_tsf(hw, msta->vif); div_u64_rem(curr_tsf - flow->start_tsf, interval, &rem); flow_tsf = curr_tsf + interval - rem; twt_agrt->twt = cpu_to_le64(flow_tsf); } else { list_add_tail(&flow->list, &dev->twt_list); } flow->tsf = le64_to_cpu(twt_agrt->twt); if (mt7996_mcu_twt_agrt_update(dev, msta->vif, flow, MCU_TWT_AGRT_ADD)) goto unlock; setup_cmd = TWT_SETUP_CMD_ACCEPT; dev->twt.table_mask |= BIT(table_id); msta->twt.flowid_mask |= BIT(flowid); dev->twt.n_agrt++; unlock: mutex_unlock(&dev->mt76.mutex); out: le16p_replace_bits(&twt_agrt->req_type, setup_cmd, IEEE80211_TWT_REQTYPE_SETUP_CMD); twt->control = (twt->control & IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT) | (twt->control & IEEE80211_TWT_CONTROL_RX_DISABLED); } void mt7996_mac_twt_teardown_flow(struct mt7996_dev *dev, struct mt7996_sta *msta, u8 flowid) { struct mt7996_twt_flow *flow; lockdep_assert_held(&dev->mt76.mutex); if (flowid >= ARRAY_SIZE(msta->twt.flow)) return; if (!(msta->twt.flowid_mask & BIT(flowid))) return; flow = &msta->twt.flow[flowid]; if (mt7996_mcu_twt_agrt_update(dev, msta->vif, flow, MCU_TWT_AGRT_DELETE)) return; list_del_init(&flow->list); msta->twt.flowid_mask &= ~BIT(flowid); dev->twt.table_mask &= ~BIT(flow->table_id); dev->twt.n_agrt--; }
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