From 239f1a1bb8eedd9f24dd3abcb801dceac7fe7ffb Mon Sep 17 00:00:00 2001
From: Benjamin Lin <benjamin-jw.lin@mediatek.com>
Date: Wed, 17 Apr 2024 10:47:08 +0800
Subject: [PATCH] wifi: mt76: mt7915: add dummy HW offload of IEEE 802.11
 fragmentation

Currently, CONNAC2 series do not support encryption for fragmented Tx frames.
Therefore, add dummy function mt7915_set_frag_threshold() to prevent SW IEEE 802.11 fragmentation.

Signed-off-by: Benjamin Lin <benjamin-jw.lin@mediatek.com>
---
 mt7915/init.c | 1 +
 mt7915/main.c | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/mt7915/init.c b/mt7915/init.c
index 3ec9eab..19a68c5 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -398,6 +398,7 @@ mt7915_init_wiphy(struct mt7915_phy *phy)
 	ieee80211_hw_set(hw, SUPPORTS_RX_DECAP_OFFLOAD);
 	ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
 	ieee80211_hw_set(hw, WANT_MONITOR_VIF);
+	ieee80211_hw_set(hw, SUPPORTS_TX_FRAG);
 
 	hw->max_tx_fragments = 4;
 
diff --git a/mt7915/main.c b/mt7915/main.c
index 9eeca39..5224d83 100644
--- a/mt7915/main.c
+++ b/mt7915/main.c
@@ -1614,6 +1614,12 @@ mt7915_twt_teardown_request(struct ieee80211_hw *hw,
 	mutex_unlock(&dev->mt76.mutex);
 }
 
+static int
+mt7915_set_frag_threshold(struct ieee80211_hw *hw, u32 val)
+{
+	return 0;
+}
+
 static int
 mt7915_set_radar_background(struct ieee80211_hw *hw,
 			    struct cfg80211_chan_def *chandef)
@@ -1741,6 +1747,7 @@ const struct ieee80211_ops mt7915_ops = {
 	.sta_set_decap_offload = mt7915_sta_set_decap_offload,
 	.add_twt_setup = mt7915_mac_add_twt_setup,
 	.twt_teardown_request = mt7915_twt_teardown_request,
+	.set_frag_threshold = mt7915_set_frag_threshold,
 	CFG80211_TESTMODE_CMD(mt76_testmode_cmd)
 	CFG80211_TESTMODE_DUMP(mt76_testmode_dump)
 #ifdef CONFIG_MAC80211_DEBUGFS
-- 
2.18.0