1 // SPDX-License-Identifier: BSD-3-Clause-Clear
2 /* Copyright (C) 2023 MediaTek Inc. */
3
4 #include "mt7925.h"
5 #include "../dma.h"
6 #include "mcu.h"
7 #include "mac.h"
8
mt7925e_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)9 int mt7925e_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr,
10 enum mt76_txq_id qid, struct mt76_wcid *wcid,
11 struct ieee80211_sta *sta,
12 struct mt76_tx_info *tx_info)
13 {
14 struct mt792x_dev *dev = container_of(mdev, struct mt792x_dev, mt76);
15 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb);
16 struct ieee80211_key_conf *key = info->control.hw_key;
17 struct mt76_connac_hw_txp *txp;
18 struct mt76_txwi_cache *t;
19 int id, pid;
20 u8 *txwi = (u8 *)txwi_ptr;
21
22 if (unlikely(tx_info->skb->len <= ETH_HLEN))
23 return -EINVAL;
24
25 if (!wcid)
26 wcid = &dev->mt76.global_wcid;
27
28 t = (struct mt76_txwi_cache *)(txwi + mdev->drv->txwi_size);
29 t->skb = tx_info->skb;
30
31 id = mt76_token_consume(mdev, &t);
32 if (id < 0)
33 return id;
34
35 if (sta) {
36 struct mt792x_sta *msta = (struct mt792x_sta *)sta->drv_priv;
37
38 if (time_after(jiffies, msta->deflink.last_txs + HZ / 4)) {
39 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
40 msta->deflink.last_txs = jiffies;
41 }
42 }
43
44 pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb);
45 mt7925_mac_write_txwi(mdev, txwi_ptr, tx_info->skb, wcid, key,
46 pid, qid, 0);
47
48 txp = (struct mt76_connac_hw_txp *)(txwi + MT_TXD_SIZE);
49 memset(txp, 0, sizeof(struct mt76_connac_hw_txp));
50 mt76_connac_write_hw_txp(mdev, tx_info, txp, id);
51
52 tx_info->skb = NULL;
53
54 return 0;
55 }
56
mt7925_tx_token_put(struct mt792x_dev * dev)57 void mt7925_tx_token_put(struct mt792x_dev *dev)
58 {
59 struct mt76_txwi_cache *txwi;
60 int id;
61
62 spin_lock_bh(&dev->mt76.token_lock);
63 idr_for_each_entry(&dev->mt76.token, txwi, id) {
64 mt7925_txwi_free(dev, txwi, NULL, NULL, NULL);
65 dev->mt76.token_count--;
66 }
67 spin_unlock_bh(&dev->mt76.token_lock);
68 idr_destroy(&dev->mt76.token);
69 }
70
mt7925e_mac_reset(struct mt792x_dev * dev)71 int mt7925e_mac_reset(struct mt792x_dev *dev)
72 {
73 const struct mt792x_irq_map *irq_map = dev->irq_map;
74 int i, err;
75
76 mt792xe_mcu_drv_pmctrl(dev);
77
78 mt76_connac_free_pending_tx_skbs(&dev->pm, NULL);
79
80 mt76_wr(dev, dev->irq_map->host_irq_enable, 0);
81 mt76_wr(dev, dev->pcie_reg->imask, 0x0);
82
83 set_bit(MT76_RESET, &dev->mphy.state);
84 set_bit(MT76_MCU_RESET, &dev->mphy.state);
85 wake_up(&dev->mt76.mcu.wait);
86 skb_queue_purge(&dev->mt76.mcu.res_q);
87
88 mt76_txq_schedule_all(&dev->mphy);
89
90 mt76_worker_disable(&dev->mt76.tx_worker);
91 if (irq_map->rx.data_complete_mask)
92 napi_disable(&dev->mt76.napi[MT_RXQ_MAIN]);
93 if (irq_map->rx.wm_complete_mask)
94 napi_disable(&dev->mt76.napi[MT_RXQ_MCU]);
95 if (irq_map->rx.wm2_complete_mask)
96 napi_disable(&dev->mt76.napi[MT_RXQ_MCU_WA]);
97 if (irq_map->tx.all_complete_mask)
98 napi_disable(&dev->mt76.tx_napi);
99
100 mt7925_tx_token_put(dev);
101 idr_init(&dev->mt76.token);
102
103 mt792x_wpdma_reset(dev, true);
104
105 mt76_for_each_q_rx(&dev->mt76, i) {
106 napi_enable(&dev->mt76.napi[i]);
107 }
108 napi_enable(&dev->mt76.tx_napi);
109
110 local_bh_disable();
111 mt76_for_each_q_rx(&dev->mt76, i) {
112 napi_schedule(&dev->mt76.napi[i]);
113 }
114 napi_schedule(&dev->mt76.tx_napi);
115 local_bh_enable();
116
117 dev->fw_assert = false;
118 clear_bit(MT76_MCU_RESET, &dev->mphy.state);
119
120 mt76_wr(dev, dev->irq_map->host_irq_enable,
121 dev->irq_map->tx.all_complete_mask |
122 dev->irq_map->rx.all_complete_mask |
123 MT_INT_MCU_CMD);
124 mt76_wr(dev, dev->pcie_reg->imask, 0xff);
125
126 err = mt792xe_mcu_fw_pmctrl(dev);
127 if (err)
128 return err;
129
130 err = __mt792xe_mcu_drv_pmctrl(dev);
131 if (err)
132 goto out;
133
134 err = mt7925_run_firmware(dev);
135 if (err)
136 goto out;
137
138 err = mt7925_mcu_set_eeprom(dev);
139 if (err)
140 goto out;
141
142 err = mt7925_mac_init(dev);
143 if (err)
144 goto out;
145
146 if (is_mt7927(&dev->mt76)) {
147 err = mt7925_mcu_set_dbdc(&dev->mphy, true);
148 if (err)
149 goto out;
150 }
151
152 err = __mt7925_start(&dev->phy);
153 out:
154 clear_bit(MT76_RESET, &dev->mphy.state);
155
156 mt76_worker_enable(&dev->mt76.tx_worker);
157
158 return err;
159 }
160