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mt76: mt7921: fix up the monitor mode

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Properly set up the monitor mode the firmware can support to fix up
RTS/CTS and beacon frames cannot be captured and forwarded to the host.

Tested-by: Deren Wu <deren.wu@mediatek.com>
Tested-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Sean Wang
2022-03-01 09:17:51 +08:00
committed by Felix Fietkau
parent 4dd4ad44b7
commit cbaa0a404f
4 changed files with 47 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h
View File

@@ -993,6 +993,7 @@ enum {
MCU_UNI_CMD_SUSPEND = 0x05,
MCU_UNI_CMD_OFFLOAD = 0x06,
MCU_UNI_CMD_HIF_CTRL = 0x07,
MCU_UNI_CMD_SNIFFER = 0x24,
};
enum {

24
drivers/net/wireless/mediatek/mt76/mt7921/main.c
View File

@@ -479,6 +479,16 @@ mt7921_pm_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
mt7921_mcu_set_beacon_filter(dev, vif, dev->pm.enable);
}
static void
mt7921_sniffer_interface_iter(void *priv, u8 *mac, struct ieee80211_vif *vif)
{
struct mt7921_dev *dev = priv;
struct ieee80211_hw *hw = mt76_hw(dev);
bool enabled = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
mt7921_mcu_set_sniffer(dev, vif, enabled);
}
void mt7921_set_runtime_pm(struct mt7921_dev *dev)
{
struct ieee80211_hw *hw = dev->mphy.hw;
@@ -516,16 +526,10 @@ static int mt7921_config(struct ieee80211_hw *hw, u32 changed)
}
if (changed & IEEE80211_CONF_CHANGE_MONITOR) {
bool enabled = !!(hw->conf.flags & IEEE80211_CONF_MONITOR);
if (!enabled)
phy->rxfilter |= MT_WF_RFCR_DROP_OTHER_UC;
else
phy->rxfilter &= ~MT_WF_RFCR_DROP_OTHER_UC;
mt76_rmw_field(dev, MT_DMA_DCR0(0), MT_DMA_DCR0_RXD_G5_EN,
enabled);
mt76_wr(dev, MT_WF_RFCR(0), phy->rxfilter);
ieee80211_iterate_active_interfaces(hw,
IEEE80211_IFACE_ITER_RESUME_ALL,
mt7921_sniffer_interface_iter, dev);
dev->mt76.rxfilter = mt76_rr(dev, MT_WF_RFCR(0));
mt7921_set_runtime_pm(dev);
}

30
drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
View File

@@ -1135,3 +1135,33 @@ int mt7921_get_txpwr_info(struct mt7921_dev *dev, struct mt7921_txpwr *txpwr)
return 0;
}
int mt7921_mcu_set_sniffer(struct mt7921_dev *dev, struct ieee80211_vif *vif,
bool enable)
{
struct mt76_vif *mvif = (struct mt76_vif *)vif->drv_priv;
struct {
struct {
u8 band_idx;
u8 pad[3];
} __packed hdr;
struct sniffer_enable_tlv {
__le16 tag;
__le16 len;
u8 enable;
u8 pad[3];
} __packed enable;
} req = {
.hdr = {
.band_idx = mvif->band_idx,
},
.enable = {
.tag = cpu_to_le16(0),
.len = cpu_to_le16(sizeof(struct sniffer_enable_tlv)),
.enable = enable,
},
};
return mt76_mcu_send_msg(&dev->mt76, MCU_UNI_CMD(SNIFFER), &req, sizeof(req),
true);
}

2
drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
View File

@@ -452,4 +452,6 @@ void mt7921s_tx_complete_skb(struct mt76_dev *mdev, struct mt76_queue_entry *e);
bool mt7921s_tx_status_data(struct mt76_dev *mdev, u8 *update);
void mt7921_mac_add_txs(struct mt7921_dev *dev, void *data);
void mt7921_set_runtime_pm(struct mt7921_dev *dev);
int mt7921_mcu_set_sniffer(struct mt7921_dev *dev, struct ieee80211_vif *vif,
bool enable);
#endif