// SPDX-License-Identifier: ISC /* Copyright (C) 2023 MediaTek Inc. */ #include #include #include #include "mt7925.h" #include "../dma.h" #include "mac.h" #include "mcu.h" bool mt7925_mac_wtbl_update(struct mt792x_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); } static void mt7925_mac_sta_poll(struct mt792x_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 mt792x_sta *msta; u32 tx_time[IEEE80211_NUM_ACS], rx_time[IEEE80211_NUM_ACS]; LIST_HEAD(sta_poll_list); struct rate_info *rate; s8 rssi[4]; int i; spin_lock_bh(&dev->mt76.sta_poll_lock); list_splice_init(&dev->mt76.sta_poll_list, &sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); while (true) { bool clear = false; u32 addr, val; u16 idx; u8 bw; if (list_empty(&sta_poll_list)) break; msta = list_first_entry(&sta_poll_list, struct mt792x_sta, wcid.poll_list); spin_lock_bh(&dev->mt76.sta_poll_lock); list_del_init(&msta->wcid.poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); idx = msta->wcid.idx; addr = mt7925_mac_wtbl_lmac_addr(dev, idx, MT_WTBL_AC0_CTT_OFFSET); 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) { mt7925_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 = mt7925_mac_wtbl_lmac_addr(dev, idx, 6); val = mt76_rr(dev, addr); if (rate->flags & RATE_INFO_FLAGS_EHT_MCS) { addr = mt7925_mac_wtbl_lmac_addr(dev, idx, 5); val = mt76_rr(dev, addr); rate->eht_gi = FIELD_GET(GENMASK(25, 24), val); } else if (rate->flags & RATE_INFO_FLAGS_HE_MCS) { u8 offs = MT_WTBL_TXRX_RATE_G2_HE + 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(MT_WTBL_TXRX_RATE_G2 + 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 = mt7925_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); } } void mt7925_mac_set_fixed_rate_table(struct mt792x_dev *dev, u8 tbl_idx, u16 rate_idx) { u32 ctrl = MT_WTBL_ITCR_WR | MT_WTBL_ITCR_EXEC | tbl_idx; mt76_wr(dev, MT_WTBL_ITDR0, rate_idx); /* use wtbl spe idx */ mt76_wr(dev, MT_WTBL_ITDR1, MT_WTBL_SPE_IDX_SEL); mt76_wr(dev, MT_WTBL_ITCR, ctrl); } /* The HW does not translate the mac header to 802.3 for mesh point */ static int mt7925_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 mt792x_sta *msta = (struct mt792x_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 mt7925_mac_fill_rx_rate(struct mt792x_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; case MT_PHY_TYPE_EHT_SU: case MT_PHY_TYPE_EHT_TRIG: case MT_PHY_TYPE_EHT_MU: status->nss = nss; status->encoding = RX_ENC_EHT; i &= GENMASK(3, 0); if (gi <= NL80211_RATE_INFO_EHT_GI_3_2) status->eht.gi = gi; 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 mt7925_mac_fill_rx(struct mt792x_dev *dev, struct sk_buff *skb) { u32 csum_mask = MT_RXD0_NORMAL_IP_SUM | MT_RXD0_NORMAL_UDP_TCP_SUM; struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; bool hdr_trans, unicast, insert_ccmp_hdr = false; u8 chfreq, qos_ctl = 0, remove_pad, amsdu_info; u16 hdr_gap; __le32 *rxv = NULL, *rxd = (__le32 *)skb->data; struct mt76_phy *mphy = &dev->mt76.phy; struct mt792x_phy *phy = &dev->phy; struct ieee80211_supported_band *sband; u32 csum_status = *(u32 *)skb->cb; 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]); struct mt792x_sta *msta = NULL; u8 mode = 0; /* , band_idx; */ u16 seq_ctrl = 0; __le16 fc = 0; int idx; memset(status, 0, sizeof(*status)); 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; chfreq = FIELD_GET(MT_RXD3_NORMAL_CH_FREQ, rxd3); unicast = FIELD_GET(MT_RXD3_NORMAL_ADDR_TYPE, rxd3) == MT_RXD3_NORMAL_U2M; idx = FIELD_GET(MT_RXD1_NORMAL_WLAN_IDX, rxd1); status->wcid = mt792x_rx_get_wcid(dev, idx, unicast); if (status->wcid) { msta = container_of(status->wcid, struct mt792x_sta, wcid); spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&msta->wcid.poll_list)) list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); } mt792x_get_status_freq_info(status, chfreq); switch (status->band) { case NL80211_BAND_5GHZ: sband = &mphy->sband_5g.sband; break; case NL80211_BAND_6GHZ: sband = &mphy->sband_6g.sband; break; default: sband = &mphy->sband_2g.sband; break; } if (!sband->channels) return -EINVAL; if (mt76_is_mmio(&dev->mt76) && (rxd0 & csum_mask) == csum_mask && !(csum_status & (BIT(0) | BIT(2) | BIT(3)))) skb->ip_summed = CHECKSUM_UNNECESSARY; if (rxd3 & 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]); /* TODO: need to map rxd address */ fc = cpu_to_le16(FIELD_GET(MT_RXD8_FRAME_CONTROL, v0)); seq_ctrl = FIELD_GET(MT_RXD10_SEQ_CTRL, v2); qos_ctl = FIELD_GET(MT_RXD10_QOS_CTL, 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 = mt7925_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 (mt7925_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); } skb_set_mac_header(skb, (unsigned char *)hdr - skb->data); } else { status->flag |= RX_FLAG_8023; } mt792x_mac_assoc_rssi(dev, skb); if (rxv && !(status->flag & RX_FLAG_8023)) { switch (status->encoding) { case RX_ENC_EHT: mt76_connac3_mac_decode_eht_radiotap(skb, rxv, mode); break; case RX_ENC_HE: mt76_connac3_mac_decode_he_radiotap(skb, rxv, mode); break; default: break; } } if (!status->wcid || !ieee80211_is_data_qos(fc)) return 0; status->aggr = unicast && !ieee80211_is_qos_nullfunc(fc); status->seqno = IEEE80211_SEQ_TO_SN(seq_ctrl); status->qos_ctl = qos_ctl; return 0; } static void mt7925_mac_write_txwi_8023(__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 mt7925_mac_write_txwi_80211(struct mt76_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_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); } } void mt7925_mac_write_txwi(struct mt76_dev *dev, __le32 *txwi, struct sk_buff *skb, struct mt76_wcid *wcid, struct ieee80211_key_conf *key, int pid, enum mt76_txq_id qid, u32 changed) { struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct ieee80211_vif *vif = info->control.vif; u8 p_fmt, q_idx, omac_idx = 0, wmm_idx = 0, band_idx = 0; u32 val, sz_txd = mt76_is_mmio(dev) ? MT_TXD_SIZE : MT_SDIO_TXD_SIZE; bool is_8023 = info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP; struct mt76_vif *mvif; bool beacon = !!(changed & (BSS_CHANGED_BEACON | BSS_CHANGED_BEACON_ENABLED)); bool inband_disc = !!(changed & (BSS_CHANGED_UNSOL_BCAST_PROBE_RESP | BSS_CHANGED_FILS_DISCOVERY)); mvif = vif ? (struct mt76_vif *)vif->drv_priv : NULL; if (mvif) { omac_idx = mvif->omac_idx; wmm_idx = mvif->wmm_idx; band_idx = mvif->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 (qid >= MT_TXQ_PSD) { p_fmt = mt76_is_mmio(dev) ? MT_TX_TYPE_CT : MT_TX_TYPE_SF; q_idx = MT_LMAC_ALTX0; } else { p_fmt = mt76_is_mmio(dev) ? MT_TX_TYPE_CT : MT_TX_TYPE_SF; q_idx = wmm_idx * MT76_CONNAC_MAX_WMM_SETS + mt76_connac_lmac_mapping(skb_get_queue_mapping(skb)); /* counting non-offloading skbs */ wcid->stats.tx_bytes += skb->len; wcid->stats.tx_packets++; } val = FIELD_PREP(MT_TXD0_TX_BYTES, skb->len + sz_txd) | 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 = FIELD_PREP(MT_TXD3_REM_TX_COUNT, 15); 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[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); txwi[3] &= ~cpu_to_le32(MT_TXD3_HW_AMSDU); } 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) mt7925_mac_write_txwi_8023(txwi, skb, wcid); else mt7925_mac_write_txwi_80211(dev, txwi, skb, key); if (txwi[1] & cpu_to_le32(MT_TXD1_FIXED_RATE)) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; bool mcast = ieee80211_is_data(hdr->frame_control) && is_multicast_ether_addr(hdr->addr1); u8 idx = MT792x_BASIC_RATES_TBL; if (mvif) { if (mcast && mvif->mcast_rates_idx) idx = mvif->mcast_rates_idx; else if (beacon && mvif->beacon_rates_idx) idx = mvif->beacon_rates_idx; else idx = mvif->basic_rates_idx; } txwi[6] |= cpu_to_le32(FIELD_PREP(MT_TXD6_TX_RATE, idx)); txwi[3] |= cpu_to_le32(MT_TXD3_BA_DISABLE); } } EXPORT_SYMBOL_GPL(mt7925_mac_write_txwi); static void mt7925_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) { struct mt792x_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 mt792x_sta *)sta->drv_priv; if (!test_and_set_bit(tid, &msta->wcid.ampdu_state)) ieee80211_start_tx_ba_session(sta, tid, 0); } static bool mt7925_mac_add_txs_skb(struct mt792x_dev *dev, struct mt76_wcid *wcid, int pid, __le32 *txs_data) { struct mt76_sta_stats *stats = &wcid->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; case MT_PHY_TYPE_EHT_SU: case MT_PHY_TYPE_EHT_TRIG: case MT_PHY_TYPE_EHT_MU: if (rate.mcs > 13) goto out; rate.eht_gi = wcid->rate.eht_gi; rate.flags = RATE_INFO_FLAGS_EHT_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; } void mt7925_mac_add_txs(struct mt792x_dev *dev, void *data) { struct mt792x_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 >= MT792x_WTBL_SIZE) return; rcu_read_lock(); wcid = rcu_dereference(dev->mt76.wcid[wcidx]); if (!wcid) goto out; msta = container_of(wcid, struct mt792x_sta, wcid); mt7925_mac_add_txs_skb(dev, wcid, pid, txs_data); if (!wcid->sta) goto out; spin_lock_bh(&dev->mt76.sta_poll_lock); if (list_empty(&msta->wcid.poll_list)) list_add_tail(&msta->wcid.poll_list, &dev->mt76.sta_poll_list); spin_unlock_bh(&dev->mt76.sta_poll_lock); out: rcu_read_unlock(); } void mt7925_txwi_free(struct mt792x_dev *dev, struct mt76_txwi_cache *t, struct ieee80211_sta *sta, bool clear_status, struct list_head *free_list) { struct mt76_dev *mdev = &dev->mt76; __le32 *txwi; u16 wcid_idx; mt76_connac_txp_skb_unmap(mdev, t); if (!t->skb) goto out; txwi = (__le32 *)mt76_get_txwi_ptr(mdev, t); if (sta) { struct mt76_wcid *wcid = (struct mt76_wcid *)sta->drv_priv; if (likely(t->skb->protocol != cpu_to_be16(ETH_P_PAE))) mt7925_tx_check_aggr(sta, txwi); wcid_idx = wcid->idx; } 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); } EXPORT_SYMBOL_GPL(mt7925_txwi_free); static void mt7925_mac_tx_free(struct mt792x_dev *dev, void *data, int len) { __le32 *tx_free = (__le32 *)data, *cur_info; struct mt76_dev *mdev = &dev->mt76; struct mt76_txwi_cache *txwi; struct ieee80211_sta *sta = NULL; struct mt76_wcid *wcid = 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 (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 mt792x_sta *msta; 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 mt792x_sta, wcid); spin_lock_bh(&mdev->sta_poll_lock); if (list_empty(&msta->wcid.poll_list)) list_add_tail(&msta->wcid.poll_list, &mdev->sta_poll_list); spin_unlock_bh(&mdev->sta_poll_lock); continue; } if (info & MT_TXFREE_INFO_HEADER) { if (wcid) { wcid->stats.tx_retries += FIELD_GET(MT_TXFREE_INFO_COUNT, info) - 1; wcid->stats.tx_failed += !!FIELD_GET(MT_TXFREE_INFO_STAT, info); } 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; mt7925_txwi_free(dev, txwi, sta, 0, &free_list); } } mt7925_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); } } bool mt7925_rx_check(struct mt76_dev *mdev, void *data, int len) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_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: /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ mt7925_mac_tx_free(dev, data, len); /* mmio */ return false; case PKT_TYPE_TXS: for (rxd += 4; rxd + 12 <= end; rxd += 12) mt7925_mac_add_txs(dev, rxd); return false; default: return true; } } EXPORT_SYMBOL_GPL(mt7925_rx_check); void mt7925_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, struct sk_buff *skb, u32 *info) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); __le32 *rxd = (__le32 *)skb->data; __le32 *end = (__le32 *)&skb->data[skb->len]; enum rx_pkt_type type; u16 flag; type = le32_get_bits(rxd[0], MT_RXD0_PKT_TYPE); flag = le32_get_bits(rxd[0], MT_RXD0_PKT_FLAG); 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; } if (type == PKT_TYPE_RX_EVENT && flag == 0x1) type = PKT_TYPE_NORMAL_MCU; switch (type) { case PKT_TYPE_TXRX_NOTIFY: /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ mt7925_mac_tx_free(dev, skb->data, skb->len); napi_consume_skb(skb, 1); break; case PKT_TYPE_RX_EVENT: mt7925_mcu_rx_event(dev, skb); break; case PKT_TYPE_TXS: for (rxd += 2; rxd + 8 <= end; rxd += 8) mt7925_mac_add_txs(dev, rxd); dev_kfree_skb(skb); break; case PKT_TYPE_NORMAL_MCU: case PKT_TYPE_NORMAL: if (!mt7925_mac_fill_rx(dev, skb)) { mt76_rx(&dev->mt76, q, skb); return; } fallthrough; default: dev_kfree_skb(skb); break; } } EXPORT_SYMBOL_GPL(mt7925_queue_rx_skb); static void mt7925_vif_connect_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) { struct mt792x_vif *mvif = (struct mt792x_vif *)vif->drv_priv; struct mt792x_dev *dev = mvif->phy->dev; struct ieee80211_hw *hw = mt76_hw(dev); if (vif->type == NL80211_IFTYPE_STATION) ieee80211_disconnect(vif, true); mt76_connac_mcu_uni_add_dev(&dev->mphy, vif, &mvif->sta.wcid, true); mt7925_mcu_set_tx(dev, vif); if (vif->type == NL80211_IFTYPE_AP) { mt76_connac_mcu_uni_add_bss(dev->phy.mt76, vif, &mvif->sta.wcid, true, NULL); mt7925_mcu_sta_update(dev, NULL, vif, true, MT76_STA_INFO_STATE_NONE); mt7925_mcu_uni_add_beacon_offload(dev, hw, vif, true); } } /* system error recovery */ void mt7925_mac_reset_work(struct work_struct *work) { struct mt792x_dev *dev = container_of(work, struct mt792x_dev, reset_work); struct ieee80211_hw *hw = mt76_hw(dev); struct mt76_connac_pm *pm = &dev->pm; int i, ret; dev_dbg(dev->mt76.dev, "chip reset\n"); dev->hw_full_reset = true; ieee80211_stop_queues(hw); cancel_delayed_work_sync(&dev->mphy.mac_work); cancel_delayed_work_sync(&pm->ps_work); cancel_work_sync(&pm->wake_work); for (i = 0; i < 10; i++) { mutex_lock(&dev->mt76.mutex); ret = mt792x_dev_reset(dev); mutex_unlock(&dev->mt76.mutex); if (!ret) break; } if (i == 10) dev_err(dev->mt76.dev, "chip reset failed\n"); if (test_and_clear_bit(MT76_HW_SCANNING, &dev->mphy.state)) { struct cfg80211_scan_info info = { .aborted = true, }; ieee80211_scan_completed(dev->mphy.hw, &info); } dev->hw_full_reset = false; pm->suspended = false; ieee80211_wake_queues(hw); ieee80211_iterate_active_interfaces(hw, IEEE80211_IFACE_ITER_RESUME_ALL, mt7925_vif_connect_iter, NULL); mt76_connac_power_save_sched(&dev->mt76.phy, pm); } void mt7925_coredump_work(struct work_struct *work) { struct mt792x_dev *dev; char *dump, *data; dev = (struct mt792x_dev *)container_of(work, struct mt792x_dev, coredump.work.work); if (time_is_after_jiffies(dev->coredump.last_activity + 4 * MT76_CONNAC_COREDUMP_TIMEOUT)) { queue_delayed_work(dev->mt76.wq, &dev->coredump.work, MT76_CONNAC_COREDUMP_TIMEOUT); return; } dump = vzalloc(MT76_CONNAC_COREDUMP_SZ); data = dump; while (true) { struct sk_buff *skb; spin_lock_bh(&dev->mt76.lock); skb = __skb_dequeue(&dev->coredump.msg_list); spin_unlock_bh(&dev->mt76.lock); if (!skb) break; skb_pull(skb, sizeof(struct mt7925_mcu_rxd) + 8); if (!dump || data + skb->len - dump > MT76_CONNAC_COREDUMP_SZ) { dev_kfree_skb(skb); continue; } memcpy(data, skb->data, skb->len); data += skb->len; dev_kfree_skb(skb); } if (dump) dev_coredumpv(dev->mt76.dev, dump, MT76_CONNAC_COREDUMP_SZ, GFP_KERNEL); mt792x_reset(&dev->mt76); } /* usb_sdio */ static void mt7925_usb_sdio_write_txwi(struct mt792x_dev *dev, struct mt76_wcid *wcid, enum mt76_txq_id qid, struct ieee80211_sta *sta, struct ieee80211_key_conf *key, int pid, struct sk_buff *skb) { __le32 *txwi = (__le32 *)(skb->data - MT_SDIO_TXD_SIZE); memset(txwi, 0, MT_SDIO_TXD_SIZE); mt7925_mac_write_txwi(&dev->mt76, txwi, skb, wcid, key, pid, qid, 0); skb_push(skb, MT_SDIO_TXD_SIZE); } int mt7925_usb_sdio_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 mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); struct ieee80211_key_conf *key = info->control.hw_key; struct sk_buff *skb = tx_info->skb; int err, pad, pktid; if (unlikely(tx_info->skb->len <= ETH_HLEN)) return -EINVAL; if (!wcid) wcid = &dev->mt76.global_wcid; if (sta) { struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv; if (time_after(jiffies, msta->last_txs + HZ / 4)) { info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; msta->last_txs = jiffies; } } pktid = mt76_tx_status_skb_add(&dev->mt76, wcid, skb); mt7925_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb); mt792x_skb_add_usb_sdio_hdr(dev, skb, 0); pad = round_up(skb->len, 4) - skb->len; if (mt76_is_usb(mdev)) pad += 4; err = mt76_skb_adjust_pad(skb, pad); if (err) /* Release pktid in case of error. */ idr_remove(&wcid->pktid, pktid); return err; } EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_prepare_skb); void mt7925_usb_sdio_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e) { __le32 *txwi = (__le32 *)(e->skb->data + MT_SDIO_HDR_SIZE); unsigned int headroom = MT_SDIO_TXD_SIZE + MT_SDIO_HDR_SIZE; struct ieee80211_sta *sta; struct mt76_wcid *wcid; u16 idx; idx = le32_get_bits(txwi[1], MT_TXD1_WLAN_IDX); wcid = rcu_dereference(mdev->wcid[idx]); sta = wcid_to_sta(wcid); if (sta && likely(e->skb->protocol != cpu_to_be16(ETH_P_PAE))) mt7925_tx_check_aggr(sta, txwi); skb_pull(e->skb, headroom); mt76_tx_complete_skb(mdev, e->wcid, e->skb); } EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_complete_skb); bool mt7925_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) { struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76); mt792x_mutex_acquire(dev); mt7925_mac_sta_poll(dev); mt792x_mutex_release(dev); return false; } EXPORT_SYMBOL_GPL(mt7925_usb_sdio_tx_status_data); #if IS_ENABLED(CONFIG_IPV6) void mt7925_set_ipv6_ns_work(struct work_struct *work) { struct mt792x_dev *dev = container_of(work, struct mt792x_dev, ipv6_ns_work); struct sk_buff *skb; int ret = 0; do { skb = skb_dequeue(&dev->ipv6_ns_list); if (!skb) break; mt792x_mutex_acquire(dev); ret = mt76_mcu_skb_send_msg(&dev->mt76, skb, MCU_UNI_CMD(OFFLOAD), true); mt792x_mutex_release(dev); } while (!ret); if (ret) skb_queue_purge(&dev->ipv6_ns_list); } #endif