[PATCH 3/3] ath11k: set correct NL80211_FEATURE_DYNAMIC_SMPS for WCN6855
From: Jouni Malinen <hidden>
Date: 2021-09-14 16:38:04
Also in:
ath11k
Subsystem:
atheros ath generic utilities, qualcomm atheros ath11k wireless driver, the rest · Maintainers:
Jeff Johnson, Linus Torvalds
From: Wen Gong <redacted> Commit "ath11k: support SMPS configuration for 6 GHz" changed "if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS)" to "if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz)" which means NL80211_FEATURE_DYNAMIC_SMPS is enabled for all chips which support 6 GHz. However, WCN6855 supports 6 GHz but it does not support feature NL80211_FEATURE_DYNAMIC_SMPS, and this can lead to MU-MIMO test failures for WCN6855. Disable NL80211_FEATURE_DYNAMIC_SMPS for WCN6855 since its ht_cap does not support WMI_HT_CAP_DYNAMIC_SMPS. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <redacted> Signed-off-by: Jouni Malinen <redacted> --- drivers/net/wireless/ath/ath11k/core.c | 1 + drivers/net/wireless/ath/ath11k/hw.h | 1 + drivers/net/wireless/ath/ath11k/mac.c | 3 ++- 3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath11k/core.c b/drivers/net/wireless/ath/ath11k/core.c
index 265ff225bd81..2bae8c5184d4 100644
--- a/drivers/net/wireless/ath/ath11k/core.c
+++ b/drivers/net/wireless/ath/ath11k/core.c@@ -279,6 +279,7 @@ static const struct ath11k_hw_params ath11k_hw_params[] = { .sram_dump = &sram_dump_wcn6855, .max_tx_ring = DP_TCL_NUM_RING_MAX_QCA6390, .hal_params = &ath11k_hal_params_qca6390, + .check_dynamic_smps = true, }, };
diff --git a/drivers/net/wireless/ath/ath11k/hw.h b/drivers/net/wireless/ath/ath11k/hw.h
index c6831fb110ba..7463b96770b7 100644
--- a/drivers/net/wireless/ath/ath11k/hw.h
+++ b/drivers/net/wireless/ath/ath11k/hw.h@@ -180,6 +180,7 @@ struct ath11k_hw_params { const struct ath11k_hw_sram_dump *sram_dump; u8 max_tx_ring; const struct hal_param *hal_params; + bool check_dynamic_smps; }; struct ath11k_hw_ops {
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 1f4765e43546..97a2c92b7b9b 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c@@ -7570,7 +7570,8 @@ static int __ath11k_mac_register(struct ath11k *ar) * for each band for a dual band capable radio. It will be tricky to * handle it when the ht capability different for each band. */ - if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || ar->supports_6ghz) + if (ht_cap & WMI_HT_CAP_DYNAMIC_SMPS || + (ar->supports_6ghz && !ab->hw_params.check_dynamic_smps)) ar->hw->wiphy->features |= NL80211_FEATURE_DYNAMIC_SMPS; ar->hw->wiphy->max_scan_ssids = WLAN_SCAN_PARAMS_MAX_SSID;
--
2.25.1