[][MAC80211][misc][Add MT7996 external openwrt build]
[Description]
Add EHT support patches
Sync CMP2.0 Firmware (20230118)
[Release-log]
N/A
Change-Id: I57f73587515cae6a1fad40ce8a83f8094af5e08d
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7117487
diff --git a/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/9999902-mac80211-mtk-add-EHT-BA1024-support.patch b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/9999902-mac80211-mtk-add-EHT-BA1024-support.patch
new file mode 100644
index 0000000..76dd9ef
--- /dev/null
+++ b/autobuild_mac80211_release/mt7988_mt7996_mac80211/package/kernel/mac80211/patches/subsys/9999902-mac80211-mtk-add-EHT-BA1024-support.patch
@@ -0,0 +1,114 @@
+From 85dde30ef0509def7bfec494aef7e5395e656c50 Mon Sep 17 00:00:00 2001
+From: Evelyn Tsai <evelyn.tsai@mediatek.com>
+Date: Sun, 25 Dec 2022 22:43:46 +0800
+Subject: [PATCH 9999902/9999902] mac80211: mtk: add EHT BA1024 support
+
+---
+ include/linux/ieee80211.h | 2 ++
+ net/mac80211/agg-tx.c | 45 +++++++++++++++++++++++++++++++++++++--
+ 2 files changed, 45 insertions(+), 2 deletions(-)
+
+diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
+index 6f70394..27321f2 100644
+--- a/include/linux/ieee80211.h
++++ b/include/linux/ieee80211.h
+@@ -1270,6 +1270,8 @@ struct ieee80211_mgmt {
+ __le16 status;
+ __le16 capab;
+ __le16 timeout;
++ /* followed by BA Extension */
++ u8 variable[0];
+ } __packed addba_resp;
+ struct{
+ u8 action_code;
+diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c
+index 318c71e..7f750c1 100755
+--- a/net/mac80211/agg-tx.c
++++ b/net/mac80211/agg-tx.c
+@@ -66,10 +66,17 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_local *local = sdata->local;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
++ struct ieee80211_addba_ext_ie *addba_ext;
++ u8 *pos;
+ u16 capab = 0;
+ bool amsdu = ieee80211_hw_check(&local->hw, SUPPORTS_AMSDU_IN_AMPDU);
+
+- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
++ if (agg_size >= 1024)
++ skb = dev_alloc_skb(sizeof(*mgmt) +
++ 2 + sizeof(struct ieee80211_addba_ext_ie) +
++ local->hw.extra_tx_headroom);
++ else
++ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom);
+
+ if (!skb)
+ return;
+@@ -108,6 +115,15 @@ static void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata,
+ mgmt->u.action.u.addba_req.start_seq_num =
+ cpu_to_le16(start_seq_num << 4);
+
++ if (agg_size >= 1024 ) {
++ pos = skb_put_zero(skb, 2 + sizeof(struct ieee80211_addba_ext_ie));
++ *pos++ = WLAN_EID_ADDBA_EXT;
++ *pos++ = sizeof(struct ieee80211_addba_ext_ie);
++ addba_ext = (struct ieee80211_addba_ext_ie *)pos;
++ addba_ext->data = u8_encode_bits(agg_size >> IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT,
++ IEEE80211_ADDBA_EXT_BUF_SIZE_MASK);
++ }
++
+ ieee80211_tx_skb_tid(sdata, skb, tid, -1);
+ }
+
+@@ -469,8 +485,11 @@ static void ieee80211_send_addba_with_timeout(struct sta_info *sta,
+ sta->ampdu_mlme.addba_req_num[tid]++;
+ spin_unlock_bh(&sta->lock);
+
+- if (sta->sta.deflink.he_cap.has_he) {
++ if (sta->sta.deflink.eht_cap.has_eht) {
+ buf_size = local->hw.max_tx_aggregation_subframes;
++ } else if (sta->sta.deflink.he_cap.has_he) {
++ buf_size = min_t(u16, local->hw.max_tx_aggregation_subframes,
++ IEEE80211_MAX_AMPDU_BUF_HE);
+ } else {
+ /*
+ * We really should use what the driver told us it will
+@@ -960,13 +979,35 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local,
+ {
+ struct tid_ampdu_tx *tid_tx;
+ struct ieee80211_txq *txq;
++ struct ieee802_11_elems *elems;
+ u16 capab, tid, buf_size;
+ bool amsdu;
++ int ext_ie_len;
+
+ capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
+ amsdu = capab & IEEE80211_ADDBA_PARAM_AMSDU_MASK;
+ tid = u16_get_bits(capab, IEEE80211_ADDBA_PARAM_TID_MASK);
+ buf_size = u16_get_bits(capab, IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK);
++ ext_ie_len = len - offsetof(struct ieee80211_mgmt,
++ u.action.u.addba_resp.variable);
++
++ if (ext_ie_len < 0)
++ goto next;
++
++ elems = ieee802_11_parse_elems(mgmt->u.action.u.addba_resp.variable,
++ ext_ie_len, true, NULL);
++
++ if (elems && !elems->parse_error) {
++ if (sta->sta.deflink.eht_cap.has_eht && elems->addba_ext_ie) {
++ u8 buf_size_1k = u8_get_bits(elems->addba_ext_ie->data,
++ IEEE80211_ADDBA_EXT_BUF_SIZE_MASK);
++ buf_size |= buf_size_1k << IEEE80211_ADDBA_EXT_BUF_SIZE_SHIFT;
++ }
++ }
++
++ if (elems)
++ kfree(elems);
++next:
+ buf_size = min(buf_size, local->hw.max_tx_aggregation_subframes);
+
+ txq = sta->sta.txq[tid];
+--
+2.18.0
+