From c3a7d7eb4c9853bb457b792cef42ddd4a029a914 Mon Sep 17 00:00:00 2001
From: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Date: Tue, 28 Sep 2021 14:00:46 +0300
Subject: [PATCH] ath11k: add 6 GHz params in peer assoc command
Git-commit: c3a7d7eb4c9853bb457b792cef42ddd4a029a914
Patch-mainline: v5.16-rc1
References: bsc#1206451
Currently A-MPDU aggregation parameters are not being configured
during peer association for 6 GHz band. Hence, extract these
parameters from station's capabilities received in association
request and send to firmware. Without this, A-MPDU aggregation
is not happening in 6 GHz band.
Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01386-QCAHKSWPL_SILICONZ-1
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210913175510.193005-2-jouni@codeaurora.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/ath/ath11k/mac.c | 50 ++++++++++++++++++++++++++-
1 file changed, 49 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ath/ath11k/mac.c b/drivers/net/wireless/ath/ath11k/mac.c
index 3bb71351fcad..a59c41800d09 100644
--- a/drivers/net/wireless/ath/ath11k/mac.c
+++ b/drivers/net/wireless/ath/ath11k/mac.c
@@ -2016,6 +2016,53 @@ static void ath11k_peer_assoc_h_he(struct ath11k *ar,
arg->peer_bw_rxnss_override);
}
+static void ath11k_peer_assoc_h_he_6ghz(struct ath11k *ar,
+ struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta,
+ struct peer_assoc_params *arg)
+{
+ const struct ieee80211_sta_he_cap *he_cap = &sta->he_cap;
+ struct cfg80211_chan_def def;
+ enum nl80211_band band;
+ u8 ampdu_factor;
+
+ if (WARN_ON(ath11k_mac_vif_chan(vif, &def)))
+ return;
+
+ band = def.chan->band;
+
+ if (!arg->he_flag || band != NL80211_BAND_6GHZ || !sta->he_6ghz_capa.capa)
+ return;
+
+ if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
+ arg->bw_80 = true;
+
+ if (sta->bandwidth == IEEE80211_STA_RX_BW_160)
+ arg->bw_160 = true;
+
+ arg->peer_he_caps_6ghz = le16_to_cpu(sta->he_6ghz_capa.capa);
+ arg->peer_mpdu_density =
+ ath11k_parse_mpdudensity(FIELD_GET(IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START,
+ arg->peer_he_caps_6ghz));
+
+ /* From IEEE Std 802.11ax-2021 - Section 10.12.2: An HE STA shall be capable of
+ * receiving A-MPDU where the A-MPDU pre-EOF padding length is up to the value
+ * indicated by the Maximum A-MPDU Length Exponent Extension field in the HE
+ * Capabilities element and the Maximum A-MPDU Length Exponent field in HE 6 GHz
+ * Band Capabilities element in the 6 GHz band.
+ *
+ * Here, we are extracting the Max A-MPDU Exponent Extension from HE caps and
+ * factor is the Maximum A-MPDU Length Exponent from HE 6 GHZ Band capability.
+ */
+ ampdu_factor = FIELD_GET(IEEE80211_HE_MAC_CAP3_MAX_AMPDU_LEN_EXP_MASK,
+ he_cap->he_cap_elem.mac_cap_info[3]) +
+ FIELD_GET(IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP,
+ arg->peer_he_caps_6ghz);
+
+ arg->peer_max_mpdu = (1u << (IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR +
+ ampdu_factor)) - 1;
+}
+
static void ath11k_peer_assoc_h_smps(struct ieee80211_sta *sta,
struct peer_assoc_params *arg)
{
@@ -2305,6 +2352,7 @@ static void ath11k_peer_assoc_prepare(struct ath11k *ar,
ath11k_peer_assoc_h_ht(ar, vif, sta, arg);
ath11k_peer_assoc_h_vht(ar, vif, sta, arg);
ath11k_peer_assoc_h_he(ar, vif, sta, arg);
+ ath11k_peer_assoc_h_he_6ghz(ar, vif, sta, arg);
ath11k_peer_assoc_h_qos(ar, vif, sta, arg);
ath11k_peer_assoc_h_smps(sta, arg);
@@ -7598,7 +7646,7 @@ static int __ath11k_mac_register(struct ath11k *ar)
if (cap->nss_ratio_enabled)
ieee80211_hw_set(ar->hw, SUPPORTS_VHT_EXT_NSS_BW);
- if (ht_cap & WMI_HT_CAP_ENABLED) {
+ if ((ht_cap & WMI_HT_CAP_ENABLED) || ar->supports_6ghz) {
ieee80211_hw_set(ar->hw, AMPDU_AGGREGATION);
ieee80211_hw_set(ar->hw, TX_AMPDU_SETUP_IN_HW);
ieee80211_hw_set(ar->hw, SUPPORTS_REORDERING_BUFFER);
--
2.35.3