From 0449694e4e963d0b48354ae2c52016c34899fba6 Mon Sep 17 00:00:00 2001 From: mtk20656 Date: Wed, 8 Mar 2023 14:18:29 +0800 Subject: [PATCH 28/39] wifi: mt76: mt7996: add 11v mbss support for mt76 Signed-off-by: mtk20656 --- mt76_connac_mcu.h | 10 ++++++ mt7996/init.c | 2 ++ mt7996/mcu.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++- 3 files changed, 90 insertions(+), 1 deletion(-) diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h index 724a48a..97f874b 100644 --- a/mt76_connac_mcu.h +++ b/mt76_connac_mcu.h @@ -1281,6 +1281,7 @@ enum { UNI_BSS_INFO_RLM = 2, UNI_BSS_INFO_BSS_COLOR = 4, UNI_BSS_INFO_HE_BASIC = 5, + UNI_BSS_INFO_11V_MBSSID = 6, UNI_BSS_INFO_BCN_CONTENT = 7, UNI_BSS_INFO_BCN_CSA = 8, UNI_BSS_INFO_BCN_BCC = 9, @@ -1551,6 +1552,15 @@ struct bss_info_uni_he { u8 rsv[2]; } __packed; +struct bss_info_uni_mbssid { + __le16 tag; + __le16 len; + u8 max_indicator; + u8 mbss_idx; + u8 tx_bss_omac_idx; + u8 rsv[1]; +} __packed; + struct mt76_connac_gtk_rekey_tlv { __le16 tag; __le16 len; diff --git a/mt7996/init.c b/mt7996/init.c index 192af3f..0562439 100644 --- a/mt7996/init.c +++ b/mt7996/init.c @@ -359,6 +359,7 @@ mt7996_init_wiphy(struct ieee80211_hw *hw) wiphy->n_iface_combinations = ARRAY_SIZE(if_comb); wiphy->reg_notifier = mt7996_regd_notifier; wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; + wiphy->mbssid_max_interfaces = 16; wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_BSS_COLOR); wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_VHT_IBSS); @@ -381,6 +382,7 @@ mt7996_init_wiphy(struct ieee80211_hw *hw) ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD); ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD); ieee80211_hw_set(hw, WANT_MONITOR_VIF); + ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID); hw->max_tx_fragments = 4; diff --git a/mt7996/mcu.c b/mt7996/mcu.c index 6bcb33e..a369a08 100644 --- a/mt7996/mcu.c +++ b/mt7996/mcu.c @@ -631,6 +631,24 @@ mt7996_mcu_bss_he_tlv(struct sk_buff *skb, struct ieee80211_vif *vif, he->max_nss_mcs[CMD_HE_MCS_BW8080] = cap->he_mcs_nss_supp.tx_mcs_80p80; } +static void +mt7996_mcu_bss_mbssid_tlv(struct sk_buff *skb, struct ieee80211_vif *vif, + struct mt7996_phy *phy) +{ + struct bss_info_uni_mbssid *mbssid; + struct tlv *tlv; + + tlv = mt7996_mcu_add_uni_tlv(skb, UNI_BSS_INFO_11V_MBSSID, sizeof(*mbssid)); + + mbssid = (struct bss_info_uni_mbssid *)tlv; + + mbssid->max_indicator = vif->bss_conf.bssid_indicator; + mbssid->mbss_idx = vif->bss_conf.bssid_index; + mbssid->tx_bss_omac_idx = 0; + + return; +} + static void mt7996_mcu_bss_bmc_tlv(struct sk_buff *skb, struct ieee80211_vif *vif, struct mt7996_phy *phy) @@ -895,6 +913,9 @@ int mt7996_mcu_add_bss_info(struct mt7996_phy *phy, if (vif->bss_conf.he_support) mt7996_mcu_bss_he_tlv(skb, vif, phy); + if (vif->bss_conf.bssid_indicator) + mt7996_mcu_bss_mbssid_tlv(skb, vif, phy); + /* this tag is necessary no matter if the vif is MLD */ mt7996_mcu_bss_mld_tlv(skb, vif); } @@ -2162,6 +2183,59 @@ mt7996_mcu_beacon_cntdwn(struct ieee80211_vif *vif, struct sk_buff *rskb, info->cnt = skb->data[offs->cntdwn_counter_offs[0]]; } +static void +mt7996_mcu_beacon_mbss(struct sk_buff *rskb, struct sk_buff *skb, + struct ieee80211_vif *vif, struct bss_bcn_content_tlv *bcn, + struct ieee80211_mutable_offsets *offs) +{ + struct bss_bcn_mbss_tlv *mbss; + const struct element *elem; + struct tlv *tlv; + + if (!vif->bss_conf.bssid_indicator) + return; + + tlv = mt7996_mcu_add_uni_tlv(rskb, UNI_BSS_INFO_BCN_MBSSID, sizeof(*mbss)); + + mbss = (struct bss_bcn_mbss_tlv *)tlv; + mbss->offset[0] = cpu_to_le16(offs->tim_offset); + mbss->bitmap = cpu_to_le32(1); + + for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, + &skb->data[offs->mbssid_off], + skb->len - offs->mbssid_off) { + const struct element *sub_elem; + + if (elem->datalen < 2) + continue; + + for_each_element(sub_elem, elem->data + 1, elem->datalen - 1) { + const struct ieee80211_bssid_index *idx; + const u8 *idx_ie; + + if (sub_elem->id || sub_elem->datalen < 4) + continue; /* not a valid BSS profile */ + + /* Find WLAN_EID_MULTI_BSSID_IDX + * in the merged nontransmitted profile + */ + idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, + sub_elem->data, + sub_elem->datalen); + if (!idx_ie || idx_ie[1] < sizeof(*idx)) + continue; + + idx = (void *)(idx_ie + 2); + if (!idx->bssid_index || idx->bssid_index > 31) + continue; + + mbss->offset[idx->bssid_index] = + cpu_to_le16(idx_ie - skb->data); + mbss->bitmap |= cpu_to_le32(BIT(idx->bssid_index)); + } + } +} + static void mt7996_mcu_beacon_cont(struct mt7996_dev *dev, struct ieee80211_vif *vif, struct sk_buff *rskb, struct sk_buff *skb, @@ -2202,6 +2276,9 @@ int mt7996_mcu_add_beacon(struct ieee80211_hw *hw, struct tlv *tlv; struct bss_bcn_content_tlv *bcn; + if (vif->bss_conf.nontransmitted) + return 0; + rskb = __mt7996_mcu_alloc_bss_req(&dev->mt76, &mvif->mt76, MT7996_BEACON_UPDATE_SIZE); if (IS_ERR(rskb)) @@ -2229,7 +2306,7 @@ int mt7996_mcu_add_beacon(struct ieee80211_hw *hw, info->hw_queue |= FIELD_PREP(MT_TX_HW_QUEUE_PHY, phy->mt76->band_idx); mt7996_mcu_beacon_cont(dev, vif, rskb, skb, bcn, &offs); - /* TODO: subtag - 11v MBSSID */ + mt7996_mcu_beacon_mbss(rskb, skb, vif, bcn, &offs); mt7996_mcu_beacon_cntdwn(vif, rskb, skb, &offs); dev_kfree_skb(skb); out: -- 2.18.0