From: Ryder Lee Date: Fri, 13 Feb 2026 08:00:29 +0000 (-0800) Subject: wifi: mt76: mt7996: Disable Rx hdr_trans in monitor mode X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=947d63d8cd3b03c7be16875ca90273edbdbe7ce5;p=thirdparty%2Flinux.git wifi: mt76: mt7996: Disable Rx hdr_trans in monitor mode Ensure raw frames are captured without header modification. Signed-off-by: Ryder Lee Link: https://patch.msgid.link/04008426d6cd5de3995beefb98f9d13f35526c25.1770969275.git.ryder.lee@mediatek.com Signed-off-by: Felix Fietkau --- diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/main.c b/drivers/net/wireless/mediatek/mt76/mt7996/main.c index c6d14f09fd10d..06f4c653ed675 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/main.c +++ b/drivers/net/wireless/mediatek/mt76/mt7996/main.c @@ -482,6 +482,8 @@ static void mt7996_set_monitor(struct mt7996_phy *phy, bool enabled) mt76_rmw_field(dev, MT_DMA_DCR0(phy->mt76->band_idx), MT_DMA_DCR0_RXD_G5_EN, enabled); + mt76_rmw_field(dev, MT_MDP_DCR0, + MT_MDP_DCR0_RX_HDR_TRANS_EN, !enabled); mt7996_phy_set_rxfilter(phy); mt7996_mcu_set_sniffer_mode(phy, enabled); } diff --git a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h index e48e0e575b646..393faae2d52b6 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7996/regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt7996/regs.h @@ -159,6 +159,9 @@ enum offs_rev { #define MT_MDP_BASE 0x820cc000 #define MT_MDP(ofs) (MT_MDP_BASE + (ofs)) +#define MT_MDP_DCR0 MT_MDP(0x800) +#define MT_MDP_DCR0_RX_HDR_TRANS_EN BIT(19) + #define MT_MDP_DCR2 MT_MDP(0x8e8) #define MT_MDP_DCR2_RX_TRANS_SHORT BIT(2)