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wifi: mt76: mt7996: Integrate NPU in RRO session management

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Add NPU integration in RRO 3.0 session management.
This is a preliminary patch to enable NPU offload for MT7996 (Eagle)
chipset.

Tested-by: Kang Yang <kang.yang@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20260122-mt76-npu-eagle-offload-v2-9-2374614c0de6@kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2026-01-22 11:39:53 +01:00 committed by Felix Fietkau
parent 880f4e3e5a
commit aa6a0ded87
3 changed files with 55 additions and 1 deletions
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10
drivers/net/wireless/mediatek/mt76/mt76.h
View File

@ -1649,6 +1649,9 @@ void mt76_npu_txdesc_cleanup(struct mt76_queue *q, int index);
int mt76_npu_net_setup_tc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
struct net_device *dev, enum tc_setup_type type,
void *type_data);
int mt76_npu_send_txrx_addr(struct mt76_dev *dev, int ifindex,
u32 direction, u32 i_count_addr,
u32 o_status_addr, u32 o_count_addr);
#else
static inline void mt76_npu_check_ppe(struct mt76_dev *dev,
struct sk_buff *skb, u32 info)
@ -1707,6 +1710,13 @@ static inline int mt76_npu_net_setup_tc(struct ieee80211_hw *hw,
{
return -EOPNOTSUPP;
}
static inline int mt76_npu_send_txrx_addr(struct mt76_dev *dev, int ifindex,
u32 direction, u32 i_count_addr,
u32 o_status_addr, u32 o_count_addr)
{
return -EOPNOTSUPP;
}
#endif /* CONFIG_MT76_NPU */
static inline bool mt76_npu_device_active(struct mt76_dev *dev)

16
drivers/net/wireless/mediatek/mt76/mt7996/init.c
View File

@ -959,6 +959,12 @@ static int mt7996_wed_rro_init(struct mt7996_dev *dev)
addr++;
}
if (is_mt7996(&dev->mt76) &&
mt76_npu_device_active(&dev->mt76))
mt76_npu_send_txrx_addr(&dev->mt76, 0, i,
dev->wed_rro.addr_elem[i].phy_addr,
0, 0);
#ifdef CONFIG_NET_MEDIATEK_SOC_WED
if (mtk_wed_device_active(&dev->mt76.mmio.wed) &&
mtk_wed_get_rx_capa(&dev->mt76.mmio.wed)) {
@ -1019,6 +1025,10 @@ static int mt7996_wed_rro_init(struct mt7996_dev *dev)
addr++;
}
if (is_mt7996(&dev->mt76) && mt76_npu_device_active(&dev->mt76))
mt76_npu_send_txrx_addr(&dev->mt76, 1, 0,
dev->wed_rro.session.phy_addr, 0, 0);
mt7996_rro_hw_init(dev);
return mt7996_dma_rro_init(dev);
@ -1105,8 +1115,12 @@ static void mt7996_wed_rro_work(struct work_struct *work)
list);
list_del_init(&e->list);
if (mt76_npu_device_active(&dev->mt76))
if (mt76_npu_device_active(&dev->mt76)) {
if (is_mt7996(&dev->mt76))
mt76_npu_send_txrx_addr(&dev->mt76, 3, e->id,
0, 0, 0);
goto reset_session;
}
for (i = 0; i < MT7996_RRO_WINDOW_MAX_LEN; i++) {
void *ptr = dev->wed_rro.session.ptr;

30
drivers/net/wireless/mediatek/mt76/npu.c
View File

@ -390,6 +390,36 @@ int mt76_npu_net_setup_tc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
}
EXPORT_SYMBOL_GPL(mt76_npu_net_setup_tc);
int mt76_npu_send_txrx_addr(struct mt76_dev *dev, int ifindex,
u32 direction, u32 i_count_addr,
u32 o_status_addr, u32 o_count_addr)
{
struct {
__le32 dir;
__le32 in_count_addr;
__le32 out_status_addr;
__le32 out_count_addr;
} info = {
.dir = cpu_to_le32(direction),
.in_count_addr = cpu_to_le32(i_count_addr),
.out_status_addr = cpu_to_le32(o_status_addr),
.out_count_addr = cpu_to_le32(o_count_addr),
};
struct airoha_npu *npu;
int err = -ENODEV;
rcu_read_lock();
npu = rcu_dereference(dev->mmio.npu);
if (npu)
err = airoha_npu_wlan_send_msg(npu, ifindex,
WLAN_FUNC_SET_WAIT_INODE_TXRX_REG_ADDR,
&info, sizeof(info), GFP_ATOMIC);
rcu_read_unlock();
return err;
}
EXPORT_SYMBOL_GPL(mt76_npu_send_txrx_addr);
void mt76_npu_disable_irqs(struct mt76_dev *dev)
{
struct airoha_npu *npu;