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Message-Id: <20250505231817.2697367-72-sashal@kernel.org>
Date: Mon, 5 May 2025 19:17:35 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
stable@...r.kernel.org
Cc: Bitterblue Smith <rtl8821cerfe2@...il.com>,
Ping-Ke Shih <pkshih@...ltek.com>,
Sasha Levin <sashal@...nel.org>,
linux-wireless@...r.kernel.org
Subject: [PATCH AUTOSEL 5.10 072/114] wifi: rtw88: Fix rtw_init_vht_cap() for RTL8814AU
From: Bitterblue Smith <rtl8821cerfe2@...il.com>
[ Upstream commit 6be7544d19fcfcb729495e793bc6181f85bb8949 ]
Set the MCS maps and the highest rates according to the number of
spatial streams the chip has. For RTL8814AU that is 3.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@...il.com>
Acked-by: Ping-Ke Shih <pkshih@...ltek.com>
Signed-off-by: Ping-Ke Shih <pkshih@...ltek.com>
Link: https://patch.msgid.link/e86aa009-b5bf-4b3a-8112-ea5e3cd49465@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/wireless/realtek/rtw88/main.c | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index 91eea38f62cd3..ea70b55150388 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -1175,8 +1175,9 @@ static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
struct ieee80211_sta_vht_cap *vht_cap)
{
struct rtw_efuse *efuse = &rtwdev->efuse;
- u16 mcs_map;
+ u16 mcs_map = 0;
__le16 highest;
+ int i;
if (efuse->hw_cap.ptcl != EFUSE_HW_CAP_IGNORE &&
efuse->hw_cap.ptcl != EFUSE_HW_CAP_PTCL_VHT)
@@ -1199,21 +1200,15 @@ static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
if (rtw_chip_has_rx_ldpc(rtwdev))
vht_cap->cap |= IEEE80211_VHT_CAP_RXLDPC;
- mcs_map = IEEE80211_VHT_MCS_SUPPORT_0_9 << 0 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 4 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 6 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 8 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 10 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 |
- IEEE80211_VHT_MCS_NOT_SUPPORTED << 14;
- if (efuse->hw_cap.nss > 1) {
- highest = cpu_to_le16(780);
- mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << 2;
- } else {
- highest = cpu_to_le16(390);
- mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << 2;
+ for (i = 0; i < 8; i++) {
+ if (i < efuse->hw_cap.nss)
+ mcs_map |= IEEE80211_VHT_MCS_SUPPORT_0_9 << (i * 2);
+ else
+ mcs_map |= IEEE80211_VHT_MCS_NOT_SUPPORTED << (i * 2);
}
+ highest = cpu_to_le16(390 * efuse->hw_cap.nss);
+
vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
vht_cap->vht_mcs.rx_highest = highest;
--
2.39.5
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