recipes-wifi/linux-mt76/files/patches-3.x/0014-mtk-wifi-mt76-mt7996-enable-hw-cso-module.patch

From d832255d8d7810670d39bc578dd0e04e798d304e Mon Sep 17 00:00:00 2001
From: Howard Hsu <howard-yh.hsu@mediatek.com>
Date: Wed, 3 Jan 2024 15:21:44 +0800
Subject: [PATCH 14/15] mtk: wifi: mt76: mt7996: enable hw cso module

The cso module needs to be enabled. The cso mudule can help identify if the traffic
is TCP traffic. This can assist the firmware in adjusting algorithms to
improve overall performance.

Signed-off-by: Howard Hsu <howard-yh.hsu@mediatek.com>
---
 mt76_connac_mcu.h |  7 +++++++
 mt7996/mcu.c      | 15 +++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/mt76_connac_mcu.h b/mt76_connac_mcu.h
index 8402097d..482782f7 100644
--- a/mt76_connac_mcu.h
+++ b/mt76_connac_mcu.h
@@ -610,6 +610,12 @@ struct sta_rec_ra_fixed {
 	u8 mmps_mode;
 } __packed;
 
+struct sta_rec_tx_proc {
+	__le16 tag;
+	__le16 len;
+	__le32 flag;
+} __packed;
+
 /* wtbl_rec */
 
 struct wtbl_req_hdr {
@@ -777,6 +783,7 @@ struct wtbl_raw {
 					 sizeof(struct sta_rec_ra_fixed) + \
 					 sizeof(struct sta_rec_he_6g_capa) + \
 					 sizeof(struct sta_rec_pn_info) + \
+					 sizeof(struct sta_rec_tx_proc) + \
 					 sizeof(struct tlv) +		\
 					 MT76_CONNAC_WTBL_UPDATE_MAX_SIZE)
 
diff --git a/mt7996/mcu.c b/mt7996/mcu.c
index 52e4f0d1..42fcbd8f 100644
--- a/mt7996/mcu.c
+++ b/mt7996/mcu.c
@@ -1753,6 +1753,19 @@ mt7996_mcu_sta_bfee_tlv(struct mt7996_dev *dev, struct sk_buff *skb,
 	bfee->fb_identity_matrix = (nrow == 1 && tx_ant == 2);
 }
 
+static void
+mt7996_mcu_sta_tx_proc_tlv(struct sk_buff *skb)
+{
+	struct sta_rec_tx_proc *tx_proc;
+	struct tlv *tlv;
+
+	tlv = mt76_connac_mcu_add_tlv(skb, STA_REC_TX_PROC, sizeof(*tx_proc));
+
+	tx_proc = (struct sta_rec_tx_proc *)tlv;
+	/* CSO is enabled if this flag exists. */
+	tx_proc->flag = cpu_to_le32(0);
+}
+
 static void
 mt7996_mcu_sta_hdrt_tlv(struct mt7996_dev *dev, struct sk_buff *skb)
 {
@@ -2164,6 +2177,8 @@ int mt7996_mcu_add_sta(struct mt7996_dev *dev, struct ieee80211_vif *vif,
 
 	/* starec hdr trans */
 	mt7996_mcu_sta_hdr_trans_tlv(dev, skb, vif, sta);
+	/* starec tx proc */
+	mt7996_mcu_sta_tx_proc_tlv(skb);
 
 	/* tag order is in accordance with firmware dependency. */
 	if (sta) {
-- 
2.18.0