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rtw88: add support for random mac scan 

When driver uses random mac address to scan, the unicast probe response
will not be received because the addr1 is not matched. Configure port
address by requested mac address to receive probe response from AP.

To support random mac scan, we need to configure the mac address during
scan period to receive unicast prop_resp. After scan is completed,
configure the mac address back to the original one that the port used.

Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Yan-Hsuan Chuang 2019-06-14 15:24:06 +08:00 committed by Kalle Valo
parent e6fec313fa
commit 44cc4c63a8
2 changed files with 21 additions and 0 deletions
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19
drivers/net/wireless/realtek/rtw88/mac80211.c
View File

@ -446,20 +446,39 @@ static void rtw_ops_sw_scan_start(struct ieee80211_hw *hw,
{
struct rtw_dev *rtwdev = hw->priv;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
u32 config = 0;
rtw_leave_lps(rtwdev, rtwvif);
mutex_lock(&rtwdev->mutex);
ether_addr_copy(rtwvif->mac_addr, mac_addr);
config |= PORT_SET_MAC_ADDR;
rtw_vif_port_config(rtwdev, rtwvif, config);
rtw_flag_set(rtwdev, RTW_FLAG_DIG_DISABLE);
rtw_flag_set(rtwdev, RTW_FLAG_SCANNING);
mutex_unlock(&rtwdev->mutex);
}
static void rtw_ops_sw_scan_complete(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct rtw_dev *rtwdev = hw->priv;
struct rtw_vif *rtwvif = (struct rtw_vif *)vif->drv_priv;
u32 config = 0;
mutex_lock(&rtwdev->mutex);
rtw_flag_clear(rtwdev, RTW_FLAG_SCANNING);
rtw_flag_clear(rtwdev, RTW_FLAG_DIG_DISABLE);
ether_addr_copy(rtwvif->mac_addr, vif->addr);
config |= PORT_SET_MAC_ADDR;
rtw_vif_port_config(rtwdev, rtwvif, config);
mutex_unlock(&rtwdev->mutex);
}
const struct ieee80211_ops rtw_ops = {

2
drivers/net/wireless/realtek/rtw88/main.c
View File

@ -1178,6 +1178,8 @@ int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw)
hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
hw->wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
rtw_set_supported_band(hw, rtwdev->chip);
SET_IEEE80211_PERM_ADDR(hw, rtwdev->efuse.addr);