linux-stable.git/drivers/net/wireless/mediatek, branch linux-6.4.y

wifi: mt76: mt7915: fix power-limits while chan_switch

2023-09-13T07:48:02+00:00

[ Upstream commit 6c0570bc21ec2073890aa252c8420ca7bec402e4 ]

If user changes the channel without completely disabling the interface the
txpower_sku values reported track the old channel the device was operating on.
If user bounces the interface the correct power tables are applied.

mt7915_sku_group_len array gets updated before the channel switch happens so it
uses data from the old channel.

Fixes: ecb187a74e18 ("mt76: mt7915: rework the flow of txpower setting")
Fixes: f1d962369d56 ("mt76: mt7915: implement HE per-rate tx power support")
Reported-By: Chad Monroe 
Tested-by: Chad Monroe 
Signed-off-by: Allen Ye 
Signed-off-by: Ryder Lee 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7915: fix tlv length of mt7915_mcu_get_chan_mib_info

2023-09-13T07:48:02+00:00

[ Upstream commit 4f1875c288dfc1ccea81fc17fef1d30c9d8498b2 ]

Correct per-device TLV lengths to avoid invalid operation in firmware.
(  64.040375:28:STATS-E)statsGetSingleHWCounter: MIB counter index = 65472 not supported.
This happens on mt7916/mt7986.

Fixes: b0bfa00595be ("wifi: mt76: mt7915: improve accuracy of time_busy calculation")
Signed-off-by: Ryder Lee 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: testmode: add nla_policy for MT76_TM_ATTR_TX_LENGTH

2023-09-13T07:48:02+00:00

[ Upstream commit 74f12d511625e603fac8c0c2b6872e687e56dd61 ]

It seems that the nla_policy in mt76_tm_policy is missed for attribute
MT76_TM_ATTR_TX_LENGTH. This patch adds the correct description to make
sure the

  u32 val = nla_get_u32(tb[MT76_TM_ATTR_TX_LENGTH]);

in function mt76_testmode_cmd() is safe and will not result in
out-of-attribute read.

Fixes: f0efa8621550 ("mt76: add API for testmode support")
Signed-off-by: Lin Ma 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7915: remove VHT160 capability on MT7915

2023-09-13T07:48:02+00:00

[ Upstream commit 3ec5ac12ac8a4e6b1e085374325a5fbd1b650fd5 ]

The IEEE80211_VHT_CAP_EXT_NSS_BW value already indicates support for half-NSS
160 MHz support, so it is wrong to also advertise full 160 MHz support.

Fixes: c2f73eacee3b ("wifi: mt76: mt7915: add back 160MHz channel width support for MT7915")
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7915: fix capabilities in non-AP mode

2023-09-13T07:48:02+00:00

[ Upstream commit 02a894046d5ab7d0010f39ea54fde7e167919d04 ]

Capabilities in vif->bss_conf are only initialized in AP mode.
For other modes, they should be enabled by default, in order to avoid a
mismatch.

Fixes: 885f7af7e544 ("wifi: mt76: mt7915: remove mt7915_mcu_beacon_check_caps()")
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7915: fix command timeout in AP stop period

2023-09-13T07:48:02+00:00

[ Upstream commit c4f0755823045b66484fb53d686f85d3151400f4 ]

Due to AP stop improperly, mt7915 driver would face random command timeout
by chip fw problem. Migrate AP start/stop process to .start_ap/.stop_ap and
congiure BSS network settings in both hooks.

The new flow is shown below.
* AP start
    .start_ap()
      configure BSS network resource
      set BSS to connected state
    .bss_info_changed()
      enable fw beacon offload

* AP stop
    .bss_info_changed()
      disable fw beacon offload (skip this command)
    .stop_ap()
      set BSS to disconnected state (beacon offload disabled automatically)
      destroy BSS network resource

Based on "mt76: mt7921: fix command timeout in AP stop period"

Signed-off-by: Rany Hany 
Signed-off-by: Felix Fietkau 
Stable-dep-of: 02a894046d5a ("wifi: mt76: mt7915: fix capabilities in non-AP mode")
Signed-off-by: Sasha Levin

wifi: mt76: mt7996: fix WA event ring size

2023-09-13T07:48:01+00:00

[ Upstream commit 1634de418b3048c5f435b6ffd37f75943c554c04 ]

Fix rx ring size of WA event to get rid of event loss and queue overflow
problems.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: StanleyYP Wang 
Signed-off-by: Shayne Chen 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7996: use correct phy for background radar event

2023-09-13T07:48:01+00:00

[ Upstream commit 9ffe0d5690ed916e09baad2cc9ee7ec65b110038 ]

If driver directly uses the band_idx reported from the radar event to
access mt76_phy array, it will get the wrong phy for background radar.
Fix this by adjusting the statement.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: StanleyYP Wang 
Signed-off-by: Shayne Chen 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7996: fix bss wlan_idx when sending bss_info command

2023-09-13T07:48:01+00:00

[ Upstream commit cc945b546227423488fe4be0ab92fd126b703246 ]

The bmc_tx_wlan_idx should be the wlan_idx of the current bss rather
than peer AP's wlan_idx, otherwise there will appear some frame
decryption problems on station mode.

Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Reviewed-by: Shayne Chen 
Signed-off-by: Peter Chiu 
Signed-off-by: Shayne Chen 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin

wifi: mt76: mt7921: fix non-PSC channel scan fail

2023-09-13T07:48:01+00:00

[ Upstream commit 0e5911bb7cc92c00dda9b4d635c1266b7ca915c6 ]

Due to the scan command may only request legacy bands and PSC channel
in 6GHz band, we are unable to scan the APs on non-PSC channel in this
case. Enable WIPHY_FLAG_SPLIT_SCAN_6GHZ to support non-PSC channel
(obtained during scan on legacy bands) in 6GHz scan request.

Fixes: 50ac15a511e3 ("mt76: mt7921: add 6GHz support")
Signed-off-by: Ming Yen Hsieh 
Signed-off-by: Deren Wu 
Signed-off-by: Felix Fietkau 
Signed-off-by: Sasha Levin