From c2fcc83b41a64ae3baa12dfb7ee5d8587373493d Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 14 Aug 2023 14:10:51 +0200 Subject: [PATCH] wifi: mt76: mt7603: disable A-MSDU tx support on MT7628 It was reported that this can cause the PSE hang issues, even with a low number of fragments. Link: https://github.com/openwrt/mt76/issues/793#issuecomment-1676529138 Signed-off-by: Felix Fietkau --- drivers/net/wireless/mediatek/mt76/mac80211.c | 3 ++- drivers/net/wireless/mediatek/mt76/mt7603/init.c | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/mac80211.c b/drivers/net/wireless/mediatek/mt76/mac80211.c index d158320bc15db..db24634e4a089 100644 --- a/drivers/net/wireless/mediatek/mt76/mac80211.c +++ b/drivers/net/wireless/mediatek/mt76/mac80211.c @@ -452,7 +452,8 @@ mt76_phy_init(struct mt76_phy *phy, struct ieee80211_hw *hw) ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU); ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER); - if (!(dev->drv->drv_flags & MT_DRV_AMSDU_OFFLOAD)) { + if (!(dev->drv->drv_flags & MT_DRV_AMSDU_OFFLOAD) && + hw->max_tx_fragments > 1) { ieee80211_hw_set(hw, TX_AMSDU); ieee80211_hw_set(hw, TX_FRAG_LIST); } diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/init.c b/drivers/net/wireless/mediatek/mt76/mt7603/init.c index dd3c96f96999e..6c55c72f28a28 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7603/init.c +++ b/drivers/net/wireless/mediatek/mt76/mt7603/init.c @@ -524,6 +524,7 @@ int mt7603_register_device(struct mt7603_dev *dev) hw->max_rates = 3; hw->max_report_rates = 7; hw->max_rate_tries = 11; + hw->max_tx_fragments = 1; hw->radiotap_timestamp.units_pos = IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US; -- 2.30.2