From: Wen Gong <quic_wgong@quicinc.com> To: <ath11k@lists.infradead.org> Cc: <linux-wireless@vger.kernel.org>, <quic_wgong@quicinc.com> Subject: [PATCH v2] ath11k: calculate the correct NSS of peer for HE capabilities Date: Thu, 18 Nov 2021 04:54:53 -0500 [thread overview] Message-ID: <20211118095453.8030-1-quic_wgong@quicinc.com> (raw) When connected to 6G mode AP, it does not have VHT/HT capabilities, so the NSS is not set, then it is 1 by default. This patch is to calculate the NSS with supported HE-MCS and NSS set of HE capabilities. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01280-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> --- v2: rebased to latest ath.git master ath-202111170737 drivers/net/wireless/ath/ath11k/mac.c | 38 ++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 292b2b7eab11..580a3404dc4b 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -1920,7 +1920,6 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, struct ath11k_vif *arvif = (void *)vif->drv_priv; struct cfg80211_chan_def def; const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; - u8 ampdu_factor; enum nl80211_band band; u16 *he_mcs_mask; u8 max_nss, he_mcs; @@ -1928,6 +1927,9 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, int i, he_nss, nss_idx; bool user_rate_valid = true; u32 rx_nss, tx_nss, nss_160; + u8 ampdu_factor, rx_mcs_80, rx_mcs_160; + u16 mcs_160_map, mcs_80_map; + bool support_160; if (WARN_ON(ath11k_mac_vif_chan(vif, &def))) return; @@ -1942,6 +1944,40 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, return; arg->he_flag = true; + support_160 = !!(he_cap->he_cap_elem.phy_cap_info[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G); + + /* Supported HE-MCS and NSS Set of peer he_cap is intersection with self he_cp */ + mcs_160_map = + le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160); + mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80); + + if (support_160) { + for (i = 7; i >= 0; i--) { + u8 mcs_160 = (mcs_160_map >> (2 * i)) & 3; + + if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + rx_mcs_160 = i + 1; + break; + } + } + } + + for (i = 7; i >= 0; i--) { + u8 mcs_80 = (mcs_80_map >> (2 * i)) & 3; + + if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + rx_mcs_80 = i + 1; + break; + } + } + + if (support_160) + max_nss = min(rx_mcs_80, rx_mcs_160); + else + max_nss = rx_mcs_80; + + arg->peer_nss = min(sta->rx_nss, max_nss); memcpy_and_pad(&arg->peer_he_cap_macinfo, sizeof(arg->peer_he_cap_macinfo), base-commit: 63ec871bc50a306aac550e2d85f697ca2d5f5deb -- 2.31.1 -- ath11k mailing list ath11k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath11k
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From: Wen Gong <quic_wgong@quicinc.com> To: <ath11k@lists.infradead.org> Cc: <linux-wireless@vger.kernel.org>, <quic_wgong@quicinc.com> Subject: [PATCH v2] ath11k: calculate the correct NSS of peer for HE capabilities Date: Thu, 18 Nov 2021 04:54:53 -0500 [thread overview] Message-ID: <20211118095453.8030-1-quic_wgong@quicinc.com> (raw) When connected to 6G mode AP, it does not have VHT/HT capabilities, so the NSS is not set, then it is 1 by default. This patch is to calculate the NSS with supported HE-MCS and NSS set of HE capabilities. Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01280-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Signed-off-by: Wen Gong <quic_wgong@quicinc.com> --- v2: rebased to latest ath.git master ath-202111170737 drivers/net/wireless/ath/ath11k/mac.c | 38 ++++++++++++++++++++++++++- 1 file changed, 37 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c index 292b2b7eab11..580a3404dc4b 100644 --- a/drivers/net/wireless/ath/ath11k/mac.c +++ b/drivers/net/wireless/ath/ath11k/mac.c @@ -1920,7 +1920,6 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, struct ath11k_vif *arvif = (void *)vif->drv_priv; struct cfg80211_chan_def def; const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap; - u8 ampdu_factor; enum nl80211_band band; u16 *he_mcs_mask; u8 max_nss, he_mcs; @@ -1928,6 +1927,9 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, int i, he_nss, nss_idx; bool user_rate_valid = true; u32 rx_nss, tx_nss, nss_160; + u8 ampdu_factor, rx_mcs_80, rx_mcs_160; + u16 mcs_160_map, mcs_80_map; + bool support_160; if (WARN_ON(ath11k_mac_vif_chan(vif, &def))) return; @@ -1942,6 +1944,40 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar, return; arg->he_flag = true; + support_160 = !!(he_cap->he_cap_elem.phy_cap_info[0] & + IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G); + + /* Supported HE-MCS and NSS Set of peer he_cap is intersection with self he_cp */ + mcs_160_map = + le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160); + mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80); + + if (support_160) { + for (i = 7; i >= 0; i--) { + u8 mcs_160 = (mcs_160_map >> (2 * i)) & 3; + + if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + rx_mcs_160 = i + 1; + break; + } + } + } + + for (i = 7; i >= 0; i--) { + u8 mcs_80 = (mcs_80_map >> (2 * i)) & 3; + + if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { + rx_mcs_80 = i + 1; + break; + } + } + + if (support_160) + max_nss = min(rx_mcs_80, rx_mcs_160); + else + max_nss = rx_mcs_80; + + arg->peer_nss = min(sta->rx_nss, max_nss); memcpy_and_pad(&arg->peer_he_cap_macinfo, sizeof(arg->peer_he_cap_macinfo), base-commit: 63ec871bc50a306aac550e2d85f697ca2d5f5deb -- 2.31.1
next reply other threads:[~2021-11-18 9:55 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-18 9:54 Wen Gong [this message] 2021-11-18 9:54 ` [PATCH v2] ath11k: calculate the correct NSS of peer for HE capabilities Wen Gong 2021-11-22 14:33 ` Kalle Valo 2021-11-22 14:33 ` Kalle Valo
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