diff options
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/mt7921/mac.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/mt7921/mac.c | 147 |
1 files changed, 141 insertions, 6 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c index 47f0aa81ab02..e4868c492bc0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7921/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7921/mac.c @@ -235,7 +235,7 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) 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; + struct mt7921_sta *msta = NULL; u16 seq_ctrl = 0; __le16 fc = 0; u8 mode = 0; @@ -486,7 +486,7 @@ mt7921_mac_fill_rx(struct mt7921_dev *dev, struct sk_buff *skb) return 0; } -void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) +static void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) { struct mt7921_sta *msta; u16 fc, tid; @@ -509,7 +509,6 @@ void mt7921_tx_check_aggr(struct ieee80211_sta *sta, __le32 *txwi) if (!test_and_set_bit(tid, &msta->ampdu_state)) ieee80211_start_tx_ba_session(sta, tid, 0); } -EXPORT_SYMBOL_GPL(mt7921_tx_check_aggr); void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) { @@ -539,8 +538,7 @@ void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) msta = container_of(wcid, struct mt7921_sta, wcid); - mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data, - &msta->stats); + mt76_connac2_mac_add_txs_skb(&dev->mt76, wcid, pid, txs_data); if (!wcid->sta) goto out; @@ -552,7 +550,134 @@ void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data) out: rcu_read_unlock(); } -EXPORT_SYMBOL_GPL(mt7921_mac_add_txs); + +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) @@ -570,6 +695,11 @@ void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, 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; @@ -780,6 +910,7 @@ void mt7921_mac_reset_work(struct work_struct *work) 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; @@ -787,8 +918,12 @@ void mt7921_reset(struct mt76_dev *mdev) 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) { |