From 3ac14439152d88435acd93a74b2dd9715abae42c Mon Sep 17 00:00:00 2001
From: Ping-Ke Shih <pkshih@realtek.com>
Date: Mon, 4 May 2020 18:50:07 +0800
Subject: [PATCH] rtw88: 8723d: some chips don't support LDPC
Git-commit: 3ac14439152d88435acd93a74b2dd9715abae42c
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430, bsc#1176741
Some chips are not able to receive LDPC packets. Add an attribute
to rtw_chip_info to determine if the LDPC capability in [ht/vht]_cap
should be advertised or not.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200504105010.10780-6-yhchuang@realtek.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/realtek/rtw88/main.c | 9 +++++++--
drivers/net/wireless/realtek/rtw88/main.h | 6 ++++++
drivers/net/wireless/realtek/rtw88/rtw8723d.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8822b.c | 1 +
drivers/net/wireless/realtek/rtw88/rtw8822c.c | 1 +
5 files changed, 16 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/main.c b/drivers/net/wireless/realtek/rtw88/main.c
index b0dadff0dc7b..f88a7d2370aa 100644
--- a/drivers/net/wireless/realtek/rtw88/main.c
+++ b/drivers/net/wireless/realtek/rtw88/main.c
@@ -933,8 +933,11 @@ static void rtw_init_ht_cap(struct rtw_dev *rtwdev,
ht_cap->cap = 0;
ht_cap->cap |= IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_MAX_AMSDU |
- IEEE80211_HT_CAP_LDPC_CODING |
(1 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
+
+ if (rtw_chip_has_rx_ldpc(rtwdev))
+ ht_cap->cap |= IEEE80211_HT_CAP_LDPC_CODING;
+
if (efuse->hw_cap.bw & BIT(RTW_CHANNEL_WIDTH_40))
ht_cap->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
IEEE80211_HT_CAP_DSSSCCK40 |
@@ -968,7 +971,6 @@ static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
vht_cap->vht_supported = true;
vht_cap->cap = IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
- IEEE80211_VHT_CAP_RXLDPC |
IEEE80211_VHT_CAP_SHORT_GI_80 |
IEEE80211_VHT_CAP_TXSTBC |
IEEE80211_VHT_CAP_RXSTBC_1 |
@@ -981,6 +983,9 @@ static void rtw_init_vht_cap(struct rtw_dev *rtwdev,
vht_cap->cap |= (rtwdev->hal.bfee_sts_cap <<
IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT);
+ 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 |
diff --git a/drivers/net/wireless/realtek/rtw88/main.h b/drivers/net/wireless/realtek/rtw88/main.h
index cb0dd30e9683..ed9c7163fc4e 100644
--- a/drivers/net/wireless/realtek/rtw88/main.h
+++ b/drivers/net/wireless/realtek/rtw88/main.h
@@ -1085,6 +1085,7 @@ struct rtw_chip_info {
u8 dig_min;
u8 txgi_factor;
bool is_pwr_by_rate_dec;
+ bool rx_ldpc;
u8 max_power_index;
bool ht_supported;
@@ -1743,6 +1744,11 @@ static inline bool rtw_chip_wcpu_11ac(struct rtw_dev *rtwdev)
return rtwdev->chip->wlan_cpu == RTW_WCPU_11AC;
}
+static inline bool rtw_chip_has_rx_ldpc(struct rtw_dev *rtwdev)
+{
+ return rtwdev->chip->rx_ldpc;
+}
+
void rtw_get_channel_params(struct cfg80211_chan_def *chandef,
struct rtw_channel_params *ch_param);
bool check_hw_ready(struct rtw_dev *rtwdev, u32 addr, u32 mask, u32 target);
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8723d.c b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
index 6011ca8352b3..6fe7596d6a11 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8723d.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8723d.c
@@ -1039,6 +1039,7 @@ struct rtw_chip_info rtw8723d_hw_spec = {
.rf_tbl = {&rtw8723d_rf_a_tbl},
.rfe_defs = rtw8723d_rfe_defs,
.rfe_defs_size = ARRAY_SIZE(rtw8723d_rfe_defs),
+ .rx_ldpc = false,
};
EXPORT_SYMBOL(rtw8723d_hw_spec);
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822b.c b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
index ffee8111d145..f1019e196918 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822b.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822b.c
@@ -2447,6 +2447,7 @@ struct rtw_chip_info rtw8822b_hw_spec = {
.iqk_threshold = 8,
.bfer_su_max_num = 2,
.bfer_mu_max_num = 1,
+ .rx_ldpc = true,
.coex_para_ver = 0x19062706,
.bt_desired_ver = 0x6,
diff --git a/drivers/net/wireless/realtek/rtw88/rtw8822c.c b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
index 38a096d5af6f..9a9423e23e9d 100644
--- a/drivers/net/wireless/realtek/rtw88/rtw8822c.c
+++ b/drivers/net/wireless/realtek/rtw88/rtw8822c.c
@@ -4312,6 +4312,7 @@ struct rtw_chip_info rtw8822c_hw_spec = {
.iqk_threshold = 8,
.bfer_su_max_num = 2,
.bfer_mu_max_num = 1,
+ .rx_ldpc = true,
#ifdef CONFIG_PM
.wow_fw_name = "rtw88/rtw8822c_wow_fw.bin",
--
2.16.4