1 // SPDX-License-Identifier: ISC 2 /* Copyright (C) 2021 MediaTek Inc. */ 3 4 #include "mt7921.h" 5 #include "../dma.h" 6 #include "mac.h" 7 8 int mt7921e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, 9 enum mt76_txq_id qid, struct mt76_wcid *wcid, 10 struct ieee80211_sta *sta, 11 struct mt76_tx_info *tx_info) 12 { 13 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76); 14 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); 15 struct ieee80211_key_conf *key = info->control.hw_key; 16 struct mt76_connac_hw_txp *txp; 17 struct mt76_txwi_cache *t; 18 int id, pid; 19 u8 *txwi = (u8 *)txwi_ptr; 20 21 if (unlikely(tx_info->skb->len <= ETH_HLEN)) 22 return -EINVAL; 23 24 if (!wcid) 25 wcid = &dev->mt76.global_wcid; 26 27 t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size); 28 t->skb = tx_info->skb; 29 30 id = mt76_token_consume(mdev, &t); 31 if (id < 0) 32 return id; 33 34 if (sta) { 35 struct mt7921_sta *msta = (struct mt7921_sta *)sta->drv_priv; 36 37 if (time_after(jiffies, msta->last_txs + HZ / 4)) { 38 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; 39 msta->last_txs = jiffies; 40 } 41 } 42 43 pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); 44 mt76_connac2_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, key, 45 pid, qid, 0); 46 47 txp = (struct mt76_connac_hw_txp *)(txwi + MT_TXD_SIZE); 48 memset(txp, 0, sizeof(struct mt76_connac_hw_txp)); 49 mt76_connac_write_hw_txp(mdev, tx_info, txp, id); 50 51 tx_info->skb = DMA_DUMMY_DATA; 52 53 return 0; 54 } 55 56 void mt7921_tx_token_put(struct mt7921_dev *dev) 57 { 58 struct mt76_txwi_cache *txwi; 59 int id; 60 61 spin_lock_bh(&dev->mt76.token_lock); 62 idr_for_each_entry(&dev->mt76.token, txwi, id) { 63 mt7921_txwi_free(dev, txwi, NULL, false, NULL); 64 dev->mt76.token_count--; 65 } 66 spin_unlock_bh(&dev->mt76.token_lock); 67 idr_destroy(&dev->mt76.token); 68 } 69 70 int mt7921e_mac_reset(struct mt7921_dev *dev) 71 { 72 int i, err; 73 74 mt7921e_mcu_drv_pmctrl(dev); 75 76 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); 77 78 mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0); 79 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0); 80 81 set_bit(MT76_RESET, &dev->mphy.state); 82 set_bit(MT76_MCU_RESET, &dev->mphy.state); 83 wake_up(&dev->mt76.mcu.wait); 84 skb_queue_purge(&dev->mt76.mcu.res_q); 85 86 mt76_txq_schedule_all(&dev->mphy); 87 88 mt76_worker_disable(&dev->mt76.tx_worker); 89 napi_disable(&dev->mt76.napi[MT_RXQ_MAIN]); 90 napi_disable(&dev->mt76.napi[MT_RXQ_MCU]); 91 napi_disable(&dev->mt76.napi[MT_RXQ_MCU_WA]); 92 napi_disable(&dev->mt76.tx_napi); 93 94 mt7921_tx_token_put(dev); 95 idr_init(&dev->mt76.token); 96 97 mt7921_wpdma_reset(dev, true); 98 99 local_bh_disable(); 100 mt76_for_each_q_rx(&dev->mt76, i) { 101 napi_enable(&dev->mt76.napi[i]); 102 napi_schedule(&dev->mt76.napi[i]); 103 } 104 local_bh_enable(); 105 106 dev->fw_assert = false; 107 clear_bit(MT76_MCU_RESET, &dev->mphy.state); 108 109 mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 110 MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL | 111 MT_INT_MCU_CMD); 112 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff); 113 114 err = mt7921e_driver_own(dev); 115 if (err) 116 goto out; 117 118 err = mt7921_run_firmware(dev); 119 if (err) 120 goto out; 121 122 err = mt7921_mcu_set_eeprom(dev); 123 if (err) 124 goto out; 125 126 err = mt7921_mac_init(dev); 127 if (err) 128 goto out; 129 130 err = __mt7921_start(&dev->phy); 131 out: 132 clear_bit(MT76_RESET, &dev->mphy.state); 133 134 local_bh_disable(); 135 napi_enable(&dev->mt76.tx_napi); 136 napi_schedule(&dev->mt76.tx_napi); 137 local_bh_enable(); 138 139 mt76_worker_enable(&dev->mt76.tx_worker); 140 141 return err; 142 } 143