1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2021 MediaTek Inc. */
3
4 #include "mt7921.h"
5 #include "../dma.h"
6 #include "../mt76_connac2_mac.h"
7
mt7921e_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)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 mt792x_dev *dev = container_of(mdev, struct mt792x_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 mt792x_sta *msta = (struct mt792x_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 = NULL;
52
53 return 0;
54 }
55
mt7921e_mac_reset(struct mt792x_dev * dev)56 int mt7921e_mac_reset(struct mt792x_dev *dev)
57 {
58 int i, err;
59
60 mt792xe_mcu_drv_pmctrl(dev);
61
62 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
63
64 mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
65 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
66
67 set_bit(MT76_MCU_RESET, &dev->mphy.state);
68 wake_up(&dev->mt76.mcu.wait);
69 skb_queue_purge(&dev->mt76.mcu.res_q);
70
71 mt76_txq_schedule_all(&dev->mphy);
72
73 mt76_worker_disable(&dev->mt76.tx_worker);
74 napi_disable(&dev->mt76.napi[MT_RXQ_MAIN]);
75 napi_disable(&dev->mt76.napi[MT_RXQ_MCU]);
76 napi_disable(&dev->mt76.napi[MT_RXQ_MCU_WA]);
77 napi_disable(&dev->mt76.tx_napi);
78
79 mt76_connac2_tx_token_put(&dev->mt76);
80 idr_init(&dev->mt76.token);
81
82 mt792x_wpdma_reset(dev, true);
83
84 local_bh_disable();
85 mt76_for_each_q_rx(&dev->mt76, i) {
86 napi_enable(&dev->mt76.napi[i]);
87 napi_schedule(&dev->mt76.napi[i]);
88 }
89 local_bh_enable();
90
91 dev->fw_assert = false;
92 clear_bit(MT76_MCU_RESET, &dev->mphy.state);
93
94 mt76_wr(dev, dev->irq_map->host_irq_enable,
95 dev->irq_map->tx.all_complete_mask |
96 MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD);
97 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
98
99 err = mt7921e_driver_own(dev);
100 if (err)
101 goto out;
102
103 err = mt7921_run_firmware(dev);
104 if (err)
105 goto out;
106
107 err = mt7921_mcu_set_eeprom(dev);
108 if (err)
109 goto out;
110
111 err = mt7921_mac_init(dev);
112 if (err)
113 goto out;
114
115 err = __mt7921_start(&dev->phy);
116 out:
117
118 local_bh_disable();
119 napi_enable(&dev->mt76.tx_napi);
120 napi_schedule(&dev->mt76.tx_napi);
121 local_bh_enable();
122
123 mt76_worker_enable(&dev->mt76.tx_worker);
124
125 return err;
126 }
127