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From: John Crispin <john@phrozen.org>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: ath11k@lists.infradead.org, Sven Eckelmann <seckelmann@datto.com>
Subject: [PATCH] ath11k: Disable SU support in meshpoint mode
Date: Wed,  4 Sep 2019 11:15:27 +0200	[thread overview]
Message-ID: <20190904091527.27260-1-john@phrozen.org> (raw)

From: Sven Eckelmann <seckelmann@datto.com>

The firmware WLAN.HK.2.1.0.1-00629-QCAHKSWPL_SILICONZ-1 often stops sending
data on 5GHz when SU support is advertised. A simple throughput benchmark
will end up at only a couple hundred kilobytes per second (when finishing
at all).

Disabling SU related flags works around this problem and allowed a maximum
throughput of ~450 MBit/s in a simple test setup with an HK01 over air.

Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
---
 drivers/net/wireless/ath/ath11k/mac.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 4d40c9635a4a..0869900d7e18 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -3365,19 +3365,20 @@ static int ath11k_mac_copy_he_cap(struct ath11k *ar,
 			he_cap_elem->phy_cap_info[3] &=
 				~(IEEE80211_HE_PHY_CAP3_RX_HE_MU_PPDU_FROM_NON_AP_STA |
 				  IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_TX_MASK |
-				  IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK);
-			he_cap_elem->phy_cap_info[4] &=
-				~IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
-			he_cap_elem->phy_cap_info[5] &=
-				~IEEE80211_HE_PHY_CAP5_NG16_MU_FEEDBACK;
+				  IEEE80211_HE_PHY_CAP3_DCM_MAX_CONST_RX_MASK |
+			          IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER);
+			he_cap_elem->phy_cap_info[4] = 0;
+			he_cap_elem->phy_cap_info[5] = 0;
 			he_cap_elem->phy_cap_info[6] &=
 				~(IEEE80211_HE_PHY_CAP6_CODEBOOK_SIZE_75_MU |
+				  IEEE80211_HE_PHY_CAP6_TRIG_SU_BEAMFORMER_FB |
 				  IEEE80211_HE_PHY_CAP6_TRIG_MU_BEAMFORMER_FB |
 				  IEEE80211_HE_PHY_CAP6_TRIG_CQI_FB |
 				  IEEE80211_HE_PHY_CAP6_PARTIAL_BANDWIDTH_DL_MUMIMO);
 			he_cap_elem->phy_cap_info[7] &=
 				~(IEEE80211_HE_PHY_CAP7_SRP_BASED_SR |
 				  IEEE80211_HE_PHY_CAP7_POWER_BOOST_FACTOR_AR |
+				  IEEE80211_HE_PHY_CAP7_HE_SU_MU_PPDU_4XLTF_AND_08_US_GI |
 				  IEEE80211_HE_PHY_CAP7_STBC_TX_ABOVE_80MHZ |
 				  IEEE80211_HE_PHY_CAP7_STBC_RX_ABOVE_80MHZ);
 			he_cap_elem->phy_cap_info[8] &=
-- 
2.20.1


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             reply	other threads:[~2019-09-04  9:15 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-04  9:15 John Crispin [this message]
2019-09-04  9:21 ` [PATCH] ath11k: Disable SU support in meshpoint mode Sven Eckelmann

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