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mt76: mt7915: introduce 802.11ax multi-bss support

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Introduce mbss mcu APIs to enable 802.11ax multi-bss AP support for
mt7915 devices

Tested-by: Money Wang <money.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2022-03-15 13:19:12 +01:00 committed by Felix Fietkau
parent 1c71e03afe
commit 6b7f9aff7c
3 changed files with 70 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c
View File

@ -2675,11 +2675,25 @@ int mt76_connac_mcu_bss_basic_tlv(struct sk_buff *skb,
struct bss_info_basic *bss;
struct tlv *tlv;
tlv = mt76_connac_mcu_add_tlv(skb, BSS_INFO_BASIC, sizeof(*bss));
bss = (struct bss_info_basic *)tlv;
switch (vif->type) {
case NL80211_IFTYPE_MESH_POINT:
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_MONITOR:
break;
case NL80211_IFTYPE_AP:
if (ieee80211_hw_check(phy->hw, SUPPORTS_MULTI_BSSID)) {
u8 bssid_id = vif->bss_conf.bssid_indicator;
struct wiphy *wiphy = phy->hw->wiphy;
if (bssid_id > ilog2(wiphy->mbssid_max_interfaces))
return -EINVAL;
bss->non_tx_bssid = vif->bss_conf.bssid_index;
bss->max_bssid = bssid_id;
}
break;
case NL80211_IFTYPE_STATION:
if (enable) {
rcu_read_lock();
@ -2704,9 +2718,6 @@ int mt76_connac_mcu_bss_basic_tlv(struct sk_buff *skb,
break;
}
tlv = mt76_connac_mcu_add_tlv(skb, BSS_INFO_BASIC, sizeof(*bss));
bss = (struct bss_info_basic *)tlv;
bss->network_type = cpu_to_le32(type);
bss->bmc_wcid_lo = to_wcid_lo(wlan_idx);
bss->bmc_wcid_hi = to_wcid_hi(wlan_idx);

2
drivers/net/wireless/mediatek/mt76/mt7915/init.c
View File

@ -343,6 +343,7 @@ mt7915_init_wiphy(struct ieee80211_hw *hw)
wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
wiphy->reg_notifier = mt7915_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);
@ -360,6 +361,7 @@ mt7915_init_wiphy(struct ieee80211_hw *hw)
ieee80211_hw_set(hw, HAS_RATE_CONTROL);
ieee80211_hw_set(hw, SUPPORTS_TX_ENCAP_OFFLOAD);
ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
ieee80211_hw_set(hw, WANT_MONITOR_VIF);
hw->max_tx_fragments = 4;

54
drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
View File

@ -1825,6 +1825,55 @@ mt7915_mcu_beacon_cntdwn(struct ieee80211_vif *vif, struct sk_buff *rskb,
info->cnt = skb->data[offs->cntdwn_counter_offs[0]];
}
static void
mt7915_mcu_beacon_mbss(struct sk_buff *rskb, struct sk_buff *skb,
struct ieee80211_vif *vif, struct bss_info_bcn *bcn,
struct ieee80211_mutable_offsets *offs)
{
struct bss_info_bcn_mbss *mbss;
const struct element *elem;
struct tlv *tlv;
if (!vif->bss_conf.bssid_indicator)
return;
tlv = mt7915_mcu_add_nested_subtlv(rskb, BSS_INFO_BCN_MBSSID,
sizeof(*mbss), &bcn->sub_ntlv,
&bcn->len);
mbss = (struct bss_info_bcn_mbss *)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 u8 *data;
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
*/
data = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX,
sub_elem->data,
sub_elem->datalen);
if (!data || data[1] < 1 || !data[2])
continue;
mbss->offset[data[2]] = cpu_to_le16(data - skb->data);
mbss->bitmap |= cpu_to_le32(BIT(data[2]));
}
}
}
static void
mt7915_mcu_beacon_cont(struct mt7915_dev *dev, struct ieee80211_vif *vif,
struct sk_buff *rskb, struct sk_buff *skb,
@ -1952,6 +2001,9 @@ int mt7915_mcu_add_beacon(struct ieee80211_hw *hw,
int len = MT7915_BEACON_UPDATE_SIZE + MAX_BEACON_SIZE;
bool ext_phy = phy != &dev->phy;
if (vif->bss_conf.nontransmitted)
return 0;
rskb = __mt76_connac_mcu_alloc_sta_req(&dev->mt76, &mvif->mt76,
NULL, len);
if (IS_ERR(rskb))
@ -1981,8 +2033,8 @@ int mt7915_mcu_add_beacon(struct ieee80211_hw *hw,
mt7915_mcu_beacon_check_caps(phy, vif, skb);
/* TODO: subtag - 11v MBSSID */
mt7915_mcu_beacon_cntdwn(vif, rskb, skb, bcn, &offs);
mt7915_mcu_beacon_mbss(rskb, skb, vif, bcn, &offs);
mt7915_mcu_beacon_cont(dev, vif, rskb, skb, bcn, &offs);
dev_kfree_skb(skb);