mt76: mt7915: change max rx len limit of hw modules

Update max rx len of some hw modules, which aligns out vendor SDK.
In normal modes, we exchange MPDU 7991 cap with peers; however, this
won't play a part in sniffer mode.
To prevent packets which exceed the max MPDU size from entering specific
rx path in hw, we need to set a proper limit to filter them out.

Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 727c529bfdeadafbd42e118b5de3446a67f71bbe..4fa8e7ba93e6dcd645fd94eefe3513a9c07bff8c 100644 (file)
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -386,7 +386,7 @@ mt7915_mac_init_band(struct mt7915_dev *dev, u8 band)
              FIELD_PREP(MT_MDP_RCFR1_RX_DROPPED_MCAST, MT_MDP_TO_HIF);
        mt76_rmw(dev, MT_MDP_BNRCFR1(band), mask, set);
 
-       mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 1536);
+       mt76_rmw_field(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_MAX_RX_LEN, 0x680);
        /* disable rx rate report by default due to hw issues */
        mt76_clear(dev, MT_DMA_DCR0(band), MT_DMA_DCR0_RXD_G5_EN);
 }
@@ -395,7 +395,7 @@ static void mt7915_mac_init(struct mt7915_dev *dev)
 {
        int i;
 
-       mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 1536);
+       mt76_rmw_field(dev, MT_MDP_DCR1, MT_MDP_DCR1_MAX_RX_LEN, 0x400);
        /* enable hardware de-agg */
        mt76_set(dev, MT_MDP_DCR0, MT_MDP_DCR0_DAMSDU_EN);