rtw88: fix rate mask for 1SS chip
authorPing-Ke Shih <pkshih@realtek.com>
Fri, 20 Dec 2019 09:21:46 +0000 (17:21 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 24 Feb 2020 07:36:30 +0000 (08:36 +0100)
[ Upstream commit 35a68fa5f96a80797e11b6952a47c5a84939a7bf ]

The rate mask is used to tell firmware the supported rate depends on
negotiation. We loop 2 times for all VHT/HT 2SS rate mask first, and then
only keep the part according to chip's NSS.

This commit fixes the logic error of '&' operations for VHT/HT rate, and
we should run this logic before adding legacy rate.

To access HT MCS map, index 0/1 represent MCS 0-7/8-15 respectively. Use
NL80211_BAND_xxx is incorrect, so fix it as well.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Reviewed-by: Chris Chiu <chiu@endlessm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/net/wireless/realtek/rtw88/main.c

index 806af37..88e2252 100644 (file)
@@ -556,8 +556,8 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
                if (sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80)
                        is_support_sgi = true;
        } else if (sta->ht_cap.ht_supported) {
-               ra_mask |= (sta->ht_cap.mcs.rx_mask[NL80211_BAND_5GHZ] << 20) |
-                          (sta->ht_cap.mcs.rx_mask[NL80211_BAND_2GHZ] << 12);
+               ra_mask |= (sta->ht_cap.mcs.rx_mask[1] << 20) |
+                          (sta->ht_cap.mcs.rx_mask[0] << 12);
                if (sta->ht_cap.cap & IEEE80211_HT_CAP_RX_STBC)
                        stbc_en = HT_STBC_EN;
                if (sta->ht_cap.cap & IEEE80211_HT_CAP_LDPC_CODING)
@@ -567,6 +567,9 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
                        is_support_sgi = true;
        }
 
+       if (efuse->hw_cap.nss == 1)
+               ra_mask &= RA_MASK_VHT_RATES_1SS | RA_MASK_HT_RATES_1SS;
+
        if (hal->current_band_type == RTW_BAND_5G) {
                ra_mask |= (u64)sta->supp_rates[NL80211_BAND_5GHZ] << 4;
                if (sta->vht_cap.vht_supported) {
@@ -600,11 +603,6 @@ void rtw_update_sta_info(struct rtw_dev *rtwdev, struct rtw_sta_info *si)
                wireless_set = 0;
        }
 
-       if (efuse->hw_cap.nss == 1) {
-               ra_mask &= RA_MASK_VHT_RATES_1SS;
-               ra_mask &= RA_MASK_HT_RATES_1SS;
-       }
-
        switch (sta->bandwidth) {
        case IEEE80211_STA_RX_BW_80:
                bw_mode = RTW_CHANNEL_WIDTH_80;