linux.git/drivers/net/wireless/mediatek, branch v6.14

wifi: mt76: move napi_enable() from under BH

2025-01-27T22:30:50+00:00

mt76 does a lot of:

  local_bh_disable();
  napi_enable(...napi);
  napi_schedule(...napi);
  local_bh_enable();

local_bh_disable() is not a real lock, its most likely taken
because napi_schedule() requires that we invoke softirqs at
some point. napi_enable() needs to take a mutex, so move it
from under the BH protection.

Fixes: 413f0271f396 ("net: protect NAPI enablement with netdev_lock()")
Reported-by: Dan Carpenter 
Link: https://lore.kernel.org/dcfd56bc-de32-4b11-9e19-d8bd1543745d@stanley.mountain
Reviewed-by: Eric Dumazet 
Link: https://patch.msgid.link/20250124031841.1179756-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski

wifi: mt76: mt7996: add implicit beamforming support for mt7992

2025-01-14T12:42:30+00:00

The configuration of mt7992 iBF has some differences to mt7996, rework
related code to make it work.
Also, most of our chipsets support iBF only on HT and VHT mode, except
mt7992 variant that has 5T on 5GHz band also supports iBF on HE and EHT
mode.

Co-developed-by: Shayne Chen 
Signed-off-by: Shayne Chen 
Signed-off-by: Howard Hsu 
Link: https://patch.msgid.link/20250114101026.3587702-9-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix beacon command during disabling

2025-01-14T12:42:30+00:00

When stopping AP, mac80211 frees beacon template before it calls
driver's stop_ap operation. In other words, on the path of stopping
AP, ieee80211_beacon_get_template() must returns NULL in
mt7996_mcu_add_beacon(). In such case mt7996 immediately returns
-EINVAL without telling FW to disable the beacon.

This commit refactors mt7996_mcu_add_beacon() so that FW can be
correctly informed when disabling AP interface.

Co-developed-by: Shayne Chen 
Signed-off-by: Shayne Chen 
Signed-off-by: Michael-CY Lee 
Link: https://patch.msgid.link/20250114101026.3587702-8-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix ldpc setting

2025-01-14T12:42:30+00:00

The non-AP interfaces would not use conf->vht_ldpc so they never set
STA_CAP_VHT_LDPC even if peer-station support LDPC.
Check conf->vht_ldpc only for AP interface.

Without this patch, station only uses BCC to transmit packet in VHT mode.

Fixes: dda423dd65c3 ("wifi: mt76: mt7996: remove mt7996_mcu_beacon_check_caps()")
Signed-off-by: Peter Chiu 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-7-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix definition of tx descriptor

2025-01-14T12:42:30+00:00

For mt7992 chipsets, the definition of TXD.DW6.BIT10~15 has different
interpretations on different frame types. Driver only needs to fill
MSDU_CNT for non-management frames.

Fixes: 408566db8cad ("wifi: mt76: connac: add new definition of tx descriptor")
Co-developed-by: Shayne Chen 
Signed-off-by: Shayne Chen 
Signed-off-by: Benjamin Lin 
Link: https://patch.msgid.link/20250114101026.3587702-6-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: connac: adjust phy capabilities based on band constraints

2025-01-14T12:42:30+00:00

Adjust HE and EHT phy capabilities based on the band constraints.
For 2g band, we shall not enable the capabilities above 40MHz.

Signed-off-by: Howard Hsu 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-5-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix incorrect indexing of MIB FW event

2025-01-14T12:42:30+00:00

Fix wrong calculation of the channel times due to incorrect
interpretation from the FW event.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Benjamin Lin 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-4-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix HE Phy capability

2025-01-14T12:42:30+00:00

Set HE SU PPDU And HE MU PPDU With 4x HE-LTF And 0.8 us GI within HE PHY
Capabilities element as 1 since hardware can support.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Howard Hsu 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-3-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: fix the capability of reception of EHT MU PPDU

2025-01-14T12:42:30+00:00

This commit includes two changes. First, enable "EHT MU PPDU With 4x
EHT-LTF And 0.8us GI" in EHT Phy capabilities element since hardware
can support. Second, fix the value of "Maximum number of supported
EHT LTFs" in the same element, where the previous setting of 3 in
Bit 3-4 was incorrect.

Fixes: 348533eb968d ("wifi: mt76: mt7996: add EHT capability init")
Signed-off-by: Howard Hsu 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-2-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau

wifi: mt76: mt7996: add max mpdu len capability

2025-01-14T12:42:30+00:00

Set max mpdu len to 11454 according to hardware capability.
Without this patch, the max ampdu length would be 3895 and count not get
expected performance.

Fixes: 348533eb968d ("wifi: mt76: mt7996: add EHT capability init")
Signed-off-by: Peter Chiu 
Signed-off-by: Shayne Chen 
Link: https://patch.msgid.link/20250114101026.3587702-1-shayne.chen@mediatek.com
Signed-off-by: Felix Fietkau