[PATCH AUTOSEL 6.6 052/139] wifi: mt76: mt7915: add dummy HW offload of IEEE 802.11 fragmentation

Sasha Levin
2024-09-25T12:13:40Z

From: Benjamin Lin <benjamin-jw.lin@mediatek.com>

[ Upstream commit f2cc859149240d910fdc6405717673e0b84bfda8 ]

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>
Link: https://patch.msgid.link/20240827093011.18621-16-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7915/init.c | 1 +
drivers/net/wireless/mediatek/mt76/mt7915/main.c | 7 +++++++
2 files changed, 8 insertions(+)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 35fdf4f98d80b..2fabef0ec42e5 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -386,6 +386,7 @@ 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/drivers/net/wireless/mediatek/mt76/mt7915/main.c b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
index 260fe00d7dc6d..f0f4f7d1d600d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/main.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/main.c
@@ -1562,6 +1562,12 @@ 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)
@@ -1688,6 +1694,7 @@ 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
--
2.43.0