| // SPDX-License-Identifier: ISC |
| /* Copyright (C) 2020 MediaTek Inc. */ |
| |
| #include <linux/devcoredump.h> |
| #include <linux/etherdevice.h> |
| #include <linux/timekeeping.h> |
| #include "mt7921.h" |
| #include "../dma.h" |
| #include "mac.h" |
| #include "mcu.h" |
| |
| static struct mt76_wcid *mt7921_rx_get_wcid(struct mt7921_dev *dev, |
| u16 idx, bool unicast) |
| { |
| struct mt7921_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 mt7921_sta, wcid); |
| if (!sta->vif) |
| return NULL; |
| |
| return &sta->vif->sta.wcid; |
| } |
| |
| void mt7921_sta_ps(struct mt76_dev *mdev, struct ieee80211_sta *sta, bool ps) |
| { |
| } |
| EXPORT_SYMBOL_GPL(mt7921_sta_ps); |
| |
| bool mt7921_mac_wtbl_update(struct mt7921_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); |
| } |
| |
| void mt7921_mac_sta_poll(struct mt7921_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 mt7921_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->sta_poll_lock); |
| list_splice_init(&dev->sta_poll_list, &sta_poll_list); |
| spin_unlock_bh(&dev->sta_poll_lock); |
| |
| while (true) { |
| bool clear = false; |
| u32 addr, val; |
| u16 idx; |
| 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 mt7921_sta, poll_list); |
| list_del_init(&msta->poll_list); |
| spin_unlock_bh(&dev->sta_poll_lock); |
| |
| idx = msta->wcid.idx; |
| addr = mt7921_mac_wtbl_lmac_addr(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) { |
| mt7921_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; |
| addr = mt7921_mac_wtbl_lmac_addr(idx, |
| MT_WTBL_TXRX_CAP_RATE_OFFSET); |
| val = mt76_rr(dev, addr); |
| |
| 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; |
| } |
| |
| 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 = mt7921_mac_wtbl_lmac_addr(idx, 30); |
| 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); |
| } |
| } |
| EXPORT_SYMBOL_GPL(mt7921_mac_sta_poll); |
| |
| static void |
| mt7921_get_status_freq_info(struct mt7921_dev *dev, struct mt76_phy *mphy, |
| struct mt76_rx_status *status, u8 chfreq) |
| { |
| if (chfreq > 180) { |
| status->band = NL80211_BAND_6GHZ; |
| chfreq = (chfreq - 181) * 4 + 1; |
| } else if (chfreq > 14) { |
| status->band = NL80211_BAND_5GHZ; |
| } else { |
| status->band = NL80211_BAND_2GHZ; |
| } |
| status->freq = ieee80211_channel_to_frequency(chfreq, status->band); |
| } |
| |
| static void |
| mt7921_mac_rssi_iter(void *priv, u8 *mac, struct ieee80211_vif *vif) |
| { |
| struct sk_buff *skb = priv; |
| struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; |
| struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; |
| struct ieee80211_hdr *hdr = mt76_skb_get_hdr(skb); |
| |
| if (status->signal > 0) |
| return; |
| |
| if (!ether_addr_equal(vif->addr, hdr->addr1)) |
| return; |
| |
| ewma_rssi_add(&mvif->rssi, -status->signal); |
| } |
| |
| static void |
| mt7921_mac_assoc_rssi(struct mt7921_dev *dev, struct sk_buff *skb) |
| { |
| struct ieee80211_hdr *hdr = mt76_skb_get_hdr(skb); |
| |
| if (!ieee80211_is_assoc_resp(hdr->frame_control) && |
| !ieee80211_is_auth(hdr->frame_control)) |
| return; |
| |
| ieee80211_iterate_active_interfaces_atomic(mt76_hw(dev), |
| IEEE80211_IFACE_ITER_RESUME_ALL, |
| mt7921_mac_rssi_iter, skb); |
| } |
| |
| static int |
| mt7921_mac_fill_rx(struct mt7921_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 mt7921_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 mt7921_sta *msta = NULL; |
| u16 seq_ctrl = 0; |
| __le16 fc = 0; |
| u8 mode = 0; |
| int i, idx; |
| |
| memset(status, 0, sizeof(*status)); |
| |
| if (rxd1 & MT_RXD1_NORMAL_BAND_IDX) |
| return -EINVAL; |
| |
| 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 = mt7921_rx_get_wcid(dev, idx, unicast); |
| |
| if (status->wcid) { |
| msta = container_of(status->wcid, struct mt7921_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); |
| } |
| |
| mt7921_get_status_freq_info(dev, mphy, 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 (rxd1 & MT_RXD1_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_RXD1_NORMAL_SEC_MODE, rxd1) != 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 += 6; |
| 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_RXD6_FRAME_CONTROL, v0)); |
| seq_ctrl = FIELD_GET(MT_RXD8_SEQ_CTRL, v2); |
| qos_ctl = FIELD_GET(MT_RXD8_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_RXD1_NORMAL_SEC_MODE, rxd1)) { |
| 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 += 2; |
| if ((u8 *)rxd - skb->data >= skb->len) |
| return -EINVAL; |
| } |
| |
| /* RXD Group 3 - P-RXV */ |
| if (rxd1 & MT_RXD1_NORMAL_GROUP_3) { |
| u32 v0, v1; |
| int ret; |
| |
| rxv = rxd; |
| rxd += 2; |
| if ((u8 *)rxd - skb->data >= skb->len) |
| return -EINVAL; |
| |
| v0 = le32_to_cpu(rxv[0]); |
| v1 = le32_to_cpu(rxv[1]); |
| |
| if (v0 & MT_PRXV_HT_AD_CODE) |
| status->enc_flags |= RX_ENC_FLAG_LDPC; |
| |
| ret = mt76_connac2_mac_fill_rx_rate(&dev->mt76, status, sband, |
| rxv, &mode); |
| if (ret < 0) |
| return ret; |
| |
| if (rxd1 & MT_RXD1_NORMAL_GROUP_5) { |
| rxd += 6; |
| if ((u8 *)rxd - skb->data >= skb->len) |
| return -EINVAL; |
| |
| rxv = rxd; |
| /* Monitor mode would use RCPI described in GROUP 5 |
| * instead. |
| */ |
| v1 = le32_to_cpu(rxv[0]); |
| |
| rxd += 12; |
| if ((u8 *)rxd - skb->data >= skb->len) |
| return -EINVAL; |
| } |
| |
| status->chains = mphy->antenna_mask; |
| status->chain_signal[0] = to_rssi(MT_PRXV_RCPI0, v1); |
| status->chain_signal[1] = to_rssi(MT_PRXV_RCPI1, v1); |
| status->chain_signal[2] = to_rssi(MT_PRXV_RCPI2, v1); |
| status->chain_signal[3] = to_rssi(MT_PRXV_RCPI3, v1); |
| status->signal = -128; |
| for (i = 0; i < hweight8(mphy->antenna_mask); i++) { |
| if (!(status->chains & BIT(i)) || |
| status->chain_signal[i] >= 0) |
| continue; |
| |
| status->signal = max(status->signal, |
| status->chain_signal[i]); |
| } |
| } |
| |
| 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)) { |
| struct ieee80211_vif *vif; |
| int err; |
| |
| if (!msta || !msta->vif) |
| return -EINVAL; |
| |
| vif = container_of((void *)msta->vif, struct ieee80211_vif, |
| drv_priv); |
| err = mt76_connac2_reverse_frag0_hdr_trans(vif, skb, hdr_gap); |
| if (err) |
| return err; |
| |
| hdr_trans = false; |
| } else { |
| skb_pull(skb, hdr_gap); |
| if (!hdr_trans && status->amsdu) { |
| memmove(skb->data + 2, skb->data, |
| ieee80211_get_hdrlen_from_skb(skb)); |
| 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; |
| } |
| |
| mt7921_mac_assoc_rssi(dev, skb); |
| |
| if (rxv && mode >= MT_PHY_TYPE_HE_SU && !(status->flag & RX_FLAG_8023)) |
| mt76_connac2_mac_decode_he_radiotap(&dev->mt76, skb, rxv, mode); |
| |
| 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 mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) |
| { |
| struct mt7921_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 mt7921_sta *)sta->drv_priv; |
| if (!test_and_set_bit(tid, &msta->ampdu_state)) |
| ieee80211_start_tx_ba_session(sta, tid, 0); |
| } |
| |
| void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) |
| { |
| struct mt7921_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 >= MT7921_WTBL_SIZE) |
| return; |
| |
| rcu_read_lock(); |
| |
| wcid = rcu_dereference(dev->mt76.wcid[wcidx]); |
| if (!wcid) |
| goto out; |
| |
| msta = container_of(wcid, struct mt7921_sta, wcid); |
| |
| mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); |
| 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(); |
| } |
| |
| void mt7921_txwi_free(struct mt7921_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))) |
| mt7921_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(mt7921_txwi_free); |
| |
| static void mt7921_mac_tx_free(struct mt7921_dev *dev, void *data, int len) |
| { |
| struct mt76_connac_tx_free *free = data; |
| __le32 *tx_info = (__le32 *)(data + sizeof(*free)); |
| struct mt76_dev *mdev = &dev->mt76; |
| struct mt76_txwi_cache *txwi; |
| struct ieee80211_sta *sta = NULL; |
| struct sk_buff *skb, *tmp; |
| void *end = data + len; |
| LIST_HEAD(free_list); |
| bool wake = false; |
| u8 i, count; |
| |
| /* 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); |
| |
| count = le16_get_bits(free->ctrl, MT_TX_FREE_MSDU_CNT); |
| if (WARN_ON_ONCE((void *)&tx_info[count] > end)) |
| return; |
| |
| for (i = 0; i < count; i++) { |
| u32 msdu, info = le32_to_cpu(tx_info[i]); |
| u8 stat; |
| |
| /* 1'b1: new wcid pair. |
| * 1'b0: msdu_id with the same 'wcid pair' as above. |
| */ |
| if (info & MT_TX_FREE_PAIR) { |
| struct mt7921_sta *msta; |
| struct mt76_wcid *wcid; |
| u16 idx; |
| |
| count++; |
| idx = FIELD_GET(MT_TX_FREE_WLAN_ID, info); |
| wcid = rcu_dereference(dev->mt76.wcid[idx]); |
| sta = wcid_to_sta(wcid); |
| if (!sta) |
| continue; |
| |
| msta = container_of(wcid, struct mt7921_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; |
| } |
| |
| msdu = FIELD_GET(MT_TX_FREE_MSDU_ID, info); |
| stat = FIELD_GET(MT_TX_FREE_STATUS, info); |
| |
| txwi = mt76_token_release(mdev, msdu, &wake); |
| if (!txwi) |
| continue; |
| |
| mt7921_txwi_free(dev, txwi, sta, stat, &free_list); |
| } |
| |
| if (wake) |
| mt76_set_tx_blocked(&dev->mt76, false); |
| |
| list_for_each_entry_safe(skb, tmp, &free_list, list) { |
| skb_list_del_init(skb); |
| napi_consume_skb(skb, 1); |
| } |
| |
| rcu_read_lock(); |
| mt7921_mac_sta_poll(dev); |
| rcu_read_unlock(); |
| |
| mt76_worker_schedule(&dev->mt76.tx_worker); |
| } |
| |
| bool mt7921_rx_check(struct mt76_dev *mdev, void *data, int len) |
| { |
| struct mt7921_dev *dev = container_of(mdev, struct mt7921_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); |
| |
| switch (type) { |
| case PKT_TYPE_TXRX_NOTIFY: |
| /* PKT_TYPE_TXRX_NOTIFY can be received only by mmio devices */ |
| mt7921_mac_tx_free(dev, data, len); /* mmio */ |
| return false; |
| case PKT_TYPE_TXS: |
| for (rxd += 2; rxd + 8 <= end; rxd += 8) |
| mt7921_mac_add_txs(dev, rxd); |
| return false; |
| default: |
| return true; |
| } |
| } |
| EXPORT_SYMBOL_GPL(mt7921_rx_check); |
| |
| void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, |
| struct sk_buff *skb, u32 *info) |
| { |
| struct mt7921_dev *dev = container_of(mdev, struct mt7921_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_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 */ |
| mt7921_mac_tx_free(dev, skb->data, skb->len); |
| napi_consume_skb(skb, 1); |
| break; |
| case PKT_TYPE_RX_EVENT: |
| mt7921_mcu_rx_event(dev, skb); |
| break; |
| case PKT_TYPE_TXS: |
| for (rxd += 2; rxd + 8 <= end; rxd += 8) |
| mt7921_mac_add_txs(dev, rxd); |
| dev_kfree_skb(skb); |
| break; |
| case PKT_TYPE_NORMAL_MCU: |
| case PKT_TYPE_NORMAL: |
| if (!mt7921_mac_fill_rx(dev, skb)) { |
| mt76_rx(&dev->mt76, q, skb); |
| return; |
| } |
| fallthrough; |
| default: |
| dev_kfree_skb(skb); |
| break; |
| } |
| } |
| EXPORT_SYMBOL_GPL(mt7921_queue_rx_skb); |
| |
| void mt7921_mac_reset_counters(struct mt7921_phy *phy) |
| { |
| struct mt7921_dev *dev = phy->dev; |
| int i; |
| |
| for (i = 0; i < 4; i++) { |
| mt76_rr(dev, MT_TX_AGG_CNT(0, i)); |
| mt76_rr(dev, MT_TX_AGG_CNT2(0, i)); |
| } |
| |
| dev->mt76.phy.survey_time = ktime_get_boottime(); |
| memset(phy->mt76->aggr_stats, 0, sizeof(phy->mt76->aggr_stats)); |
| |
| /* reset airtime counters */ |
| mt76_rr(dev, MT_MIB_SDR9(0)); |
| mt76_rr(dev, MT_MIB_SDR36(0)); |
| mt76_rr(dev, MT_MIB_SDR37(0)); |
| |
| mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| mt76_set(dev, MT_WF_RMAC_MIB_AIRTIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| } |
| |
| void mt7921_mac_set_timing(struct mt7921_phy *phy) |
| { |
| s16 coverage_class = phy->coverage_class; |
| struct mt7921_dev *dev = phy->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); |
| bool is_2ghz = phy->mt76->chandef.chan->band == NL80211_BAND_2GHZ; |
| int sifs = is_2ghz ? 10 : 16, offset; |
| |
| if (!test_bit(MT76_STATE_RUNNING, &phy->mt76->state)) |
| return; |
| |
| mt76_set(dev, MT_ARB_SCR(0), |
| 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(0), cck + reg_offset); |
| mt76_wr(dev, MT_TMAC_ODTR(0), ofdm + reg_offset); |
| mt76_wr(dev, MT_TMAC_ICR0(0), |
| FIELD_PREP(MT_IFS_EIFS, 360) | |
| FIELD_PREP(MT_IFS_RIFS, 2) | |
| FIELD_PREP(MT_IFS_SIFS, sifs) | |
| FIELD_PREP(MT_IFS_SLOT, phy->slottime)); |
| |
| if (phy->slottime < 20 || !is_2ghz) |
| val = MT7921_CFEND_RATE_DEFAULT; |
| else |
| val = MT7921_CFEND_RATE_11B; |
| |
| mt76_rmw_field(dev, MT_AGG_ACR0(0), MT_AGG_ACR_CFEND_RATE, val); |
| mt76_clear(dev, MT_ARB_SCR(0), |
| MT_ARB_SCR_TX_DISABLE | MT_ARB_SCR_RX_DISABLE); |
| } |
| |
| static u8 |
| mt7921_phy_get_nf(struct mt7921_phy *phy, int idx) |
| { |
| return 0; |
| } |
| |
| static void |
| mt7921_phy_update_channel(struct mt76_phy *mphy, int idx) |
| { |
| struct mt7921_dev *dev = container_of(mphy->dev, struct mt7921_dev, mt76); |
| struct mt7921_phy *phy = (struct mt7921_phy *)mphy->priv; |
| struct mt76_channel_state *state; |
| u64 busy_time, tx_time, rx_time, obss_time; |
| int nf; |
| |
| busy_time = mt76_get_field(dev, MT_MIB_SDR9(idx), |
| MT_MIB_SDR9_BUSY_MASK); |
| tx_time = mt76_get_field(dev, MT_MIB_SDR36(idx), |
| MT_MIB_SDR36_TXTIME_MASK); |
| rx_time = mt76_get_field(dev, MT_MIB_SDR37(idx), |
| MT_MIB_SDR37_RXTIME_MASK); |
| obss_time = mt76_get_field(dev, MT_WF_RMAC_MIB_AIRTIME14(idx), |
| MT_MIB_OBSSTIME_MASK); |
| |
| nf = mt7921_phy_get_nf(phy, idx); |
| if (!phy->noise) |
| phy->noise = nf << 4; |
| else if (nf) |
| phy->noise += nf - (phy->noise >> 4); |
| |
| state = mphy->chan_state; |
| state->cc_busy += busy_time; |
| state->cc_tx += tx_time; |
| state->cc_rx += rx_time + obss_time; |
| state->cc_bss_rx += rx_time; |
| state->noise = -(phy->noise >> 4); |
| } |
| |
| void mt7921_update_channel(struct mt76_phy *mphy) |
| { |
| struct mt7921_dev *dev = container_of(mphy->dev, struct mt7921_dev, mt76); |
| |
| if (mt76_connac_pm_wake(mphy, &dev->pm)) |
| return; |
| |
| mt7921_phy_update_channel(mphy, 0); |
| /* reset obss airtime */ |
| mt76_set(dev, MT_WF_RMAC_MIB_TIME0(0), MT_WF_RMAC_MIB_RXTIME_CLR); |
| |
| mt76_connac_power_save_sched(mphy, &dev->pm); |
| } |
| EXPORT_SYMBOL_GPL(mt7921_update_channel); |
| |
| static void |
| mt7921_vif_connect_iter(void *priv, u8 *mac, |
| struct ieee80211_vif *vif) |
| { |
| struct mt7921_vif *mvif = (struct mt7921_vif *)vif->drv_priv; |
| struct mt7921_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); |
| mt7921_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); |
| mt7921_mcu_sta_update(dev, NULL, vif, true, |
| MT76_STA_INFO_STATE_NONE); |
| mt7921_mcu_uni_add_beacon_offload(dev, hw, vif, true); |
| } |
| } |
| |
| /* system error recovery */ |
| void mt7921_mac_reset_work(struct work_struct *work) |
| { |
| struct mt7921_dev *dev = container_of(work, struct mt7921_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 = mt7921_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, |
| mt7921_vif_connect_iter, NULL); |
| mt76_connac_power_save_sched(&dev->mt76.phy, pm); |
| } |
| |
| void mt7921_reset(struct mt76_dev *mdev) |
| { |
| struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| struct mt76_connac_pm *pm = &dev->pm; |
| |
| if (!dev->hw_init_done) |
| return; |
| |
| if (dev->hw_full_reset) |
| return; |
| |
| if (pm->suspended) |
| return; |
| |
| queue_work(dev->mt76.wq, &dev->reset_work); |
| } |
| EXPORT_SYMBOL_GPL(mt7921_reset); |
| |
| void mt7921_mac_update_mib_stats(struct mt7921_phy *phy) |
| { |
| struct mt7921_dev *dev = phy->dev; |
| struct mib_stats *mib = &phy->mib; |
| int i, aggr0 = 0, aggr1; |
| u32 val; |
| |
| mib->fcs_err_cnt += mt76_get_field(dev, MT_MIB_SDR3(0), |
| MT_MIB_SDR3_FCS_ERR_MASK); |
| mib->ack_fail_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR3(0), |
| MT_MIB_ACK_FAIL_COUNT_MASK); |
| mib->ba_miss_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR2(0), |
| MT_MIB_BA_FAIL_COUNT_MASK); |
| mib->rts_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR0(0), |
| MT_MIB_RTS_COUNT_MASK); |
| mib->rts_retries_cnt += mt76_get_field(dev, MT_MIB_MB_BSDR1(0), |
| MT_MIB_RTS_FAIL_COUNT_MASK); |
| |
| mib->tx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR12(0)); |
| mib->tx_mpdu_attempts_cnt += mt76_rr(dev, MT_MIB_SDR14(0)); |
| mib->tx_mpdu_success_cnt += mt76_rr(dev, MT_MIB_SDR15(0)); |
| |
| val = mt76_rr(dev, MT_MIB_SDR32(0)); |
| mib->tx_pkt_ebf_cnt += FIELD_GET(MT_MIB_SDR9_EBF_CNT_MASK, val); |
| mib->tx_pkt_ibf_cnt += FIELD_GET(MT_MIB_SDR9_IBF_CNT_MASK, val); |
| |
| val = mt76_rr(dev, MT_ETBF_TX_APP_CNT(0)); |
| mib->tx_bf_ibf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_IBF_CNT, val); |
| mib->tx_bf_ebf_ppdu_cnt += FIELD_GET(MT_ETBF_TX_EBF_CNT, val); |
| |
| val = mt76_rr(dev, MT_ETBF_RX_FB_CNT(0)); |
| mib->tx_bf_rx_fb_all_cnt += FIELD_GET(MT_ETBF_RX_FB_ALL, val); |
| mib->tx_bf_rx_fb_he_cnt += FIELD_GET(MT_ETBF_RX_FB_HE, val); |
| mib->tx_bf_rx_fb_vht_cnt += FIELD_GET(MT_ETBF_RX_FB_VHT, val); |
| mib->tx_bf_rx_fb_ht_cnt += FIELD_GET(MT_ETBF_RX_FB_HT, val); |
| |
| mib->rx_mpdu_cnt += mt76_rr(dev, MT_MIB_SDR5(0)); |
| mib->rx_ampdu_cnt += mt76_rr(dev, MT_MIB_SDR22(0)); |
| mib->rx_ampdu_bytes_cnt += mt76_rr(dev, MT_MIB_SDR23(0)); |
| mib->rx_ba_cnt += mt76_rr(dev, MT_MIB_SDR31(0)); |
| |
| for (i = 0; i < ARRAY_SIZE(mib->tx_amsdu); i++) { |
| val = mt76_rr(dev, MT_PLE_AMSDU_PACK_MSDU_CNT(i)); |
| mib->tx_amsdu[i] += val; |
| mib->tx_amsdu_cnt += val; |
| } |
| |
| for (i = 0, aggr1 = aggr0 + 8; i < 4; i++) { |
| u32 val2; |
| |
| val = mt76_rr(dev, MT_TX_AGG_CNT(0, i)); |
| val2 = mt76_rr(dev, MT_TX_AGG_CNT2(0, i)); |
| |
| phy->mt76->aggr_stats[aggr0++] += val & 0xffff; |
| phy->mt76->aggr_stats[aggr0++] += val >> 16; |
| phy->mt76->aggr_stats[aggr1++] += val2 & 0xffff; |
| phy->mt76->aggr_stats[aggr1++] += val2 >> 16; |
| } |
| } |
| |
| void mt7921_mac_work(struct work_struct *work) |
| { |
| struct mt7921_phy *phy; |
| struct mt76_phy *mphy; |
| |
| mphy = (struct mt76_phy *)container_of(work, struct mt76_phy, |
| mac_work.work); |
| phy = mphy->priv; |
| |
| mt7921_mutex_acquire(phy->dev); |
| |
| mt76_update_survey(mphy); |
| if (++mphy->mac_work_count == 2) { |
| mphy->mac_work_count = 0; |
| |
| mt7921_mac_update_mib_stats(phy); |
| } |
| |
| mt7921_mutex_release(phy->dev); |
| |
| mt76_tx_status_check(mphy->dev, false); |
| ieee80211_queue_delayed_work(phy->mt76->hw, &mphy->mac_work, |
| MT7921_WATCHDOG_TIME); |
| } |
| |
| void mt7921_pm_wake_work(struct work_struct *work) |
| { |
| struct mt7921_dev *dev; |
| struct mt76_phy *mphy; |
| |
| dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, |
| pm.wake_work); |
| mphy = dev->phy.mt76; |
| |
| if (!mt7921_mcu_drv_pmctrl(dev)) { |
| struct mt76_dev *mdev = &dev->mt76; |
| int i; |
| |
| if (mt76_is_sdio(mdev)) { |
| mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); |
| mt76_worker_schedule(&mdev->sdio.txrx_worker); |
| } else { |
| local_bh_disable(); |
| mt76_for_each_q_rx(mdev, i) |
| napi_schedule(&mdev->napi[i]); |
| local_bh_enable(); |
| mt76_connac_pm_dequeue_skbs(mphy, &dev->pm); |
| mt76_connac_tx_cleanup(mdev); |
| } |
| if (test_bit(MT76_STATE_RUNNING, &mphy->state)) |
| ieee80211_queue_delayed_work(mphy->hw, &mphy->mac_work, |
| MT7921_WATCHDOG_TIME); |
| } |
| |
| ieee80211_wake_queues(mphy->hw); |
| wake_up(&dev->pm.wait); |
| } |
| |
| void mt7921_pm_power_save_work(struct work_struct *work) |
| { |
| struct mt7921_dev *dev; |
| unsigned long delta; |
| struct mt76_phy *mphy; |
| |
| dev = (struct mt7921_dev *)container_of(work, struct mt7921_dev, |
| pm.ps_work.work); |
| mphy = dev->phy.mt76; |
| |
| delta = dev->pm.idle_timeout; |
| if (test_bit(MT76_HW_SCANNING, &mphy->state) || |
| test_bit(MT76_HW_SCHED_SCANNING, &mphy->state) || |
| dev->fw_assert) |
| goto out; |
| |
| if (mutex_is_locked(&dev->mt76.mutex)) |
| /* if mt76 mutex is held we should not put the device |
| * to sleep since we are currently accessing device |
| * register map. We need to wait for the next power_save |
| * trigger. |
| */ |
| goto out; |
| |
| if (time_is_after_jiffies(dev->pm.last_activity + delta)) { |
| delta = dev->pm.last_activity + delta - jiffies; |
| goto out; |
| } |
| |
| if (!mt7921_mcu_fw_pmctrl(dev)) { |
| cancel_delayed_work_sync(&mphy->mac_work); |
| return; |
| } |
| out: |
| queue_delayed_work(dev->mt76.wq, &dev->pm.ps_work, delta); |
| } |
| |
| void mt7921_coredump_work(struct work_struct *work) |
| { |
| struct mt7921_dev *dev; |
| char *dump, *data; |
| |
| dev = (struct mt7921_dev *)container_of(work, struct mt7921_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 mt76_connac2_mcu_rxd)); |
| 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); |
| |
| mt7921_reset(&dev->mt76); |
| } |
| |
| /* usb_sdio */ |
| static void |
| mt7921_usb_sdio_write_txwi(struct mt7921_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); |
| mt76_connac2_mac_write_txwi(&dev->mt76, txwi, skb, wcid, key, pid, qid, 0); |
| skb_push(skb, MT_SDIO_TXD_SIZE); |
| } |
| |
| int mt7921_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 mt7921_dev *dev = container_of(mdev, struct mt7921_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, type; |
| |
| if (unlikely(tx_info->skb->len <= ETH_HLEN)) |
| return -EINVAL; |
| |
| if (!wcid) |
| wcid = &dev->mt76.global_wcid; |
| |
| if (sta) { |
| struct mt7921_sta *msta = (struct mt7921_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); |
| mt7921_usb_sdio_write_txwi(dev, wcid, qid, sta, key, pktid, skb); |
| |
| type = mt76_is_sdio(mdev) ? MT7921_SDIO_DATA : 0; |
| mt7921_skb_add_usb_sdio_hdr(dev, skb, type); |
| 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(mt7921_usb_sdio_tx_prepare_skb); |
| |
| void mt7921_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))) |
| mt7921_tx_check_aggr(sta, txwi); |
| |
| skb_pull(e->skb, headroom); |
| mt76_tx_complete_skb(mdev, e->wcid, e->skb); |
| } |
| EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_complete_skb); |
| |
| bool mt7921_usb_sdio_tx_status_data(struct mt76_dev *mdev, u8 *update) |
| { |
| struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); |
| |
| mt7921_mutex_acquire(dev); |
| mt7921_mac_sta_poll(dev); |
| mt7921_mutex_release(dev); |
| |
| return false; |
| } |
| EXPORT_SYMBOL_GPL(mt7921_usb_sdio_tx_status_data); |
| |
| #if IS_ENABLED(CONFIG_IPV6) |
| void mt7921_set_ipv6_ns_work(struct work_struct *work) |
| { |
| struct mt7921_dev *dev = container_of(work, struct mt7921_dev, |
| ipv6_ns_work); |
| struct sk_buff *skb; |
| int ret = 0; |
| |
| do { |
| skb = skb_dequeue(&dev->ipv6_ns_list); |
| |
| if (!skb) |
| break; |
| |
| mt7921_mutex_acquire(dev); |
| ret = mt76_mcu_skb_send_msg(&dev->mt76, skb, |
| MCU_UNI_CMD(OFFLOAD), true); |
| mt7921_mutex_release(dev); |
| |
| } while (!ret); |
| |
| if (ret) |
| skb_queue_purge(&dev->ipv6_ns_list); |
| } |
| #endif |