Add basic HE BSS's info for interfaces. As for the advanced features
will be added gradually in the future patches.
(i.e. BSS color, TWT, spatial reuse and OFDMA)
Signed-off-by: Ryder Lee <ryder.lee@xxxxxxxxxxxx>
Tested-by: Shayne Chen <shayne.chen@xxxxxxxxxxxx>
Tested-by: Chih-Min Chen <chih-min.chen@xxxxxxxxxxxx>
Tested-by: Evelyn Tsai <evelyn.tsai@xxxxxxxxxxxx>
Acked-by: Yiwei Chung <yiwei.chung@xxxxxxxxxxxx>
Acked-by: YF Luo <yf.luo@xxxxxxxxxxxx>
---
.../net/wireless/mediatek/mt76/mt7915/mcu.c | 95 ++++++++++++++++++-
.../net/wireless/mediatek/mt76/mt7915/mcu.h | 10 ++
2 files changed, 104 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 47c0ff8f41bf..61bab6bdcea0 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -744,6 +744,47 @@ mt7915_mcu_bss_omac_tlv(struct sk_buff *skb, struct ieee80211_vif *vif)
omac->hw_bss_idx = idx;
}
+struct mt7915_he_obss_narrow_bw_ru_data {
+ bool tolerated;
+};
+
+static void mt7915_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
+ struct cfg80211_bss *bss,
+ void *_data)
+{
+ struct mt7915_he_obss_narrow_bw_ru_data *data = _data;
+ const struct element *elem;
+
+ elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data,
+ bss->ies->len);
+
+ if (!elem || elem->datalen < 10 ||
+ !(elem->data[10] &
+ WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT))
+ data->tolerated = false;
+}
+
+static bool mt7915_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mt7915_he_obss_narrow_bw_ru_data iter_data = {
+ .tolerated = true,
+ };
+
+ if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR))
+ return false;
+
+ cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
+ mt7915_check_he_obss_narrow_bw_ru_iter,
+ &iter_data);
+
+ /*
+ * If there is at least one AP on radar channel that cannot
+ * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
+ */
+ return !iter_data.tolerated;
+}
+
static void
mt7915_mcu_bss_rfch_tlv(struct sk_buff *skb, struct ieee80211_vif *vif,
struct mt7915_phy *phy)
@@ -766,7 +807,20 @@ mt7915_mcu_bss_rfch_tlv(struct sk_buff *skb, struct ieee80211_vif *vif,
ch->center_ch1 = ieee80211_frequency_to_channel(freq2);
}
- ch->he_all_disable = true;
+ if (vif->bss_conf.he_support && vif->type == NL80211_IFTYPE_STATION) {
+ struct mt7915_dev *dev = phy->dev;
+ struct mt76_phy *mphy = &dev->mt76.phy;
+ bool ext_phy = phy != &dev->phy;
+
+ if (ext_phy && dev->mt76.phy2)
+ mphy = dev->mt76.phy2;
+
+ ch->he_ru26_block =
+ mt7915_check_he_obss_narrow_bw_ru(mphy->hw, vif);
+ ch->he_all_disable = false;
+ } else {
+ ch->he_all_disable = true;
+ }
}
static void
@@ -795,6 +849,42 @@ mt7915_mcu_bss_ra_tlv(struct sk_buff *skb, struct ieee80211_vif *vif,
ra->fast_interval = cpu_to_le32(100);
}
+static void
+mt7915_mcu_bss_he_tlv(struct sk_buff *skb, struct ieee80211_vif *vif,
+ struct mt7915_phy *phy)
+{
+#define DEFAULT_HE_PE_DURATION 4
+#define DEFAULT_HE_DURATION_RTS_THRES 1023
+ struct cfg80211_chan_def *chandef = &phy->mt76->chandef;
+ enum nl80211_band band = chandef->chan->band;
+ struct ieee80211_supported_band *sband;
+ const struct ieee80211_sta_he_cap *cap;
+ struct bss_info_he *he;
+ struct tlv *tlv;
+
+ if (band == NL80211_BAND_2GHZ)
+ sband = &phy->mt76->sband_2g.sband;
+ else
+ sband = &phy->mt76->sband_5g.sband;
+
+ cap = ieee80211_get_he_iftype_cap(sband, vif->type);
+
+ tlv = mt7915_mcu_add_tlv(skb, BSS_INFO_HE_BASIC, sizeof(*he));
+
+ he = (struct bss_info_he *)tlv;
+ he->he_pe_duration = vif->bss_conf.htc_trig_based_pkt_ext * 4;
+ if (!he->he_pe_duration)
+ he->he_pe_duration = DEFAULT_HE_PE_DURATION;
+
+ he->he_rts_thres = cpu_to_le16(vif->bss_conf.frame_time_rts_th * 32);
+ if (!he->he_rts_thres)
+ he->he_rts_thres = cpu_to_le16(DEFAULT_HE_DURATION_RTS_THRES);
+
+ he->max_nss_mcs[CMD_HE_MCS_BW80] = cap->he_mcs_nss_supp.tx_mcs_80;
+ he->max_nss_mcs[CMD_HE_MCS_BW160] = cap->he_mcs_nss_supp.tx_mcs_160;
+ he->max_nss_mcs[CMD_HE_MCS_BW8080] = cap->he_mcs_nss_supp.tx_mcs_80p80;
+}
+
static void
mt7915_mcu_bss_ext_tlv(struct sk_buff *skb, struct mt7915_vif *mvif)
{
@@ -870,6 +960,9 @@ int mt7915_mcu_add_bss_info(struct mt7915_phy *phy,
mt7915_mcu_bss_bmc_tlv(skb, phy);
mt7915_mcu_bss_ra_tlv(skb, vif, phy);
+ if (vif->bss_conf.he_support)
+ mt7915_mcu_bss_he_tlv(skb, vif, phy);
+
if (mvif->omac_idx > HW_BSSID_MAX)
mt7915_mcu_bss_ext_tlv(skb, mvif);
else
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
index c71161aec767..85ef1b35b265 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
@@ -396,6 +396,16 @@ struct bss_info_ra {
__le32 fast_interval;
} __packed;
+struct bss_info_he {
+ __le16 tag;
+ __le16 len;
+ u8 he_pe_duration;
+ u8 vht_op_info_present;
+ __le16 he_rts_thres;
+ __le16 max_nss_mcs[CMD_HE_MCS_BW_NUM];
+ u8 rsv[6];
+} __packed;
+
struct bss_info_bcn {
__le16 tag;
__le16 len;
--
2.18.0
