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mt76: mt7915: add HE bss_conf support for interfaces

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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@mediatek.com>
Tested-by: Shayne Chen <shayne.chen@mediatek.com>
Tested-by: Chih-Min Chen <chih-min.chen@mediatek.com>
Tested-by: Evelyn Tsai <evelyn.tsai@mediatek.com>
Acked-by: Yiwei Chung <yiwei.chung@mediatek.com>
Acked-by: YF Luo <yf.luo@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Ryder Lee 2020-04-25 03:32:31 +08:00 committed by Felix Fietkau
parent 37f4ca907c
commit 6094f86fb3
2 changed files with 104 additions and 1 deletions
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95
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
View File

@ -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

10
drivers/net/wireless/mediatek/mt76/mt7915/mcu.h
View File

@ -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;