From: Wen Gong <wgong@xxxxxxxxxxxxxx> [ Upstream commit 78406044bdd0cc8987bc082b76867c63ab1c6af8 ] When NSS ratio enabled reported by firmware, SUPPORTS_VHT_EXT_NSS_BW is set in ath11k, meanwhile IEEE80211_VHT_EXT_NSS_BW_CAPABLE also need to be set, otherwise it is invalid because spec in IEEE Std 802.11™‐2020 as below. Table 9-273-Supported VHT-MCS and NSS Set subfields, it has subfield VHT Extended NSS BW Capable, its definition is: Indicates whether the STA is capable of interpreting the Extended NSS BW Support subfield of the VHT Capabilities Information field. dmesg have a message without this patch: ieee80211 phy0: copying sband (band 1) due to VHT EXT NSS BW flag It means mac80211 will set IEEE80211_VHT_EXT_NSS_BW_CAPABLE if ath11k not set it in ieee80211_register_hw(). So it is better to set it in ath11k. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <wgong@xxxxxxxxxxxxxx> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20211013073704.15888-1-wgong@xxxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/net/wireless/ath/ath11k/mac.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 1cc55602787bb..0a196fb3df9fd 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -4561,6 +4561,10 @@ ath11k_create_vht_cap(struct ath11k *ar, u32 rate_cap_tx_chainmask, vht_cap.vht_supported = 1; vht_cap.cap = ar->pdev->cap.vht_cap; + if (ar->pdev->cap.nss_ratio_enabled) + vht_cap.vht_mcs.tx_highest |= + cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); + ath11k_set_vht_txbf_cap(ar, &vht_cap.cap); rxmcs_map = 0; -- 2.34.1
