Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/contrib/dev/mediatek/mt76/mt7921/pci_mac.c
48525 views
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


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->deflink.last_txs + HZ / 4)) {

38
			info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;

39
			msta->deflink.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


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
	mt76_for_each_q_rx(&dev->mt76, i) {

85
		napi_enable(&dev->mt76.napi[i]);

86
	}

87


88
	local_bh_disable();

89
	mt76_for_each_q_rx(&dev->mt76, i) {

90
		napi_schedule(&dev->mt76.napi[i]);

91
	}

92
	local_bh_enable();

93


94
	dev->fw_assert = false;

95
	clear_bit(MT76_MCU_RESET, &dev->mphy.state);

96


97
	mt76_wr(dev, dev->irq_map->host_irq_enable,

98
		dev->irq_map->tx.all_complete_mask |

99
		MT_INT_RX_DONE_ALL | MT_INT_MCU_CMD);

100
	mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);

101


102
	err = mt7921e_driver_own(dev);

103
	if (err)

104
		goto out;

105


106
	err = mt7921_run_firmware(dev);

107
	if (err)

108
		goto out;

109


110
	err = mt7921_mcu_set_eeprom(dev);

111
	if (err)

112
		goto out;

113


114
	err = mt7921_mac_init(dev);

115
	if (err)

116
		goto out;

117


118
	err = __mt7921_start(&dev->phy);

119
out:

120


121
	napi_enable(&dev->mt76.tx_napi);

122
	local_bh_disable();

123
	napi_schedule(&dev->mt76.tx_napi);

124
	local_bh_enable();

125


126
	mt76_worker_enable(&dev->mt76.tx_worker);

127


128
	return err;

129
}

130


131