Commit 5dc32b8a authored by Tzu-En Huang's avatar Tzu-En Huang Committed by Kalle Valo
Browse files

rtw88: add NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 support 



Add support for NL80211_EXT_FEATURE_CAN_REPLACE_PTK0 feature.
According to the "Hardware crypto acceleration" documentation section,
when set_key() is called with %DISABLE_KEY command, for outgoing frames,
we flush out frames in the queues with the old key; for incoming frames,
no frames will be passed to mac80211 decrypted with the old key due to
rtw_sec_clear_cam().

Signed-off-by: default avatarTzu-En Huang <tehuang@realtek.com>
Signed-off-by: default avatarYan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: default avatarKalle Valo <kvalo@codeaurora.org>
parent 27c65bfc

drivers/net/wireless/realtek/rtw88/mac.h

+5 −0
Original line number Diff line number Diff line
@@ -33,4 +33,9 @@ int rtw_download_firmware(struct rtw_dev *rtwdev, struct rtw_fw_state *fw); 
int rtw_mac_init(struct rtw_dev *rtwdev);

void rtw_mac_flush_queues(struct rtw_dev *rtwdev, u32 queues, bool drop);



static inline void rtw_mac_flush_all_queues(struct rtw_dev *rtwdev, bool drop)

{

	rtw_mac_flush_queues(rtwdev, BIT(rtwdev->hw->queues) - 1, drop);

}



#endif

drivers/net/wireless/realtek/rtw88/mac80211.c

+1 −0
Original line number Diff line number Diff line
@@ -533,6 +533,7 @@ static int rtw_ops_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 
				  hw_key_type, hw_key_idx);

		break;

	case DISABLE_KEY:

		rtw_mac_flush_all_queues(rtwdev, false);

		rtw_sec_clear_cam(rtwdev, sec, key->hw_key_idx);

		break;

	}

drivers/net/wireless/realtek/rtw88/main.c

+2 −0
Original line number Diff line number Diff line
@@ -1324,6 +1324,8 @@ int rtw_register_hw(struct rtw_dev *rtwdev, struct ieee80211_hw *hw) 


	hw->wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;



	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CAN_REPLACE_PTK0);



	rtw_set_supported_band(hw, rtwdev->chip);

	SET_IEEE80211_PERM_ADDR(hw, rtwdev->efuse.addr);

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