MT7922 Unable to Start in AP Mode with Encryption
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Description
Attempting to use a MT7922 M.2 card (picture below) to stand up an access point in 6G band, which the iw info for the device claims to support. As I understand it, the MT7916 is more targeted at access point use, but I could only find one mPCIe device from AsiaRF with that chipset, not in an M.2 form factor. The system I am hoping to put this device in only has an M.2 slot and USB ports, so the mPCIe option is both more expensive and doesn't even fit. Hoping to make the MT7922 option work as I don't need particularly fancy AP features, I just need it to be in the 6G band.
I am running on linux kernel 6.1.26 using the latest mt76 (https://github.com/openwrt/mt76/commit/cddbd796bbc649debe457f7b34b200bbda4fcc53)
Relevant dmesg output. The system boots fine, and at 890 seconds I attempt to enable the AP, which proceeds to hang the luci web interface, though I can still interact with the device over the command line. The looping of chip reset and timeouts continues indefinitely (log cut short here).
[ 14.335064] mt7921e 0000:01:00.0: enabling device (0000 -> 0002)
[ 14.351616] mt7921e 0000:01:00.0: ASIC revision: 79220010
[ 14.433931] mt7921e 0000:01:00.0: HW/SW Version: 0x8a108a10, Build Time: 20230328143229a
[ 14.816193] mt7921e 0000:01:00.0: WM Firmware Version: ____000000, Build Time: 20230328143313
[ 890.195329] br-lan: port 2(phy0-ap0) entered blocking state
[ 890.195852] br-lan: port 2(phy0-ap0) entered disabled state
[ 890.196980] device phy0-ap0 entered promiscuous mode
[ 890.197825] br-lan: port 2(phy0-ap0) entered blocking state
[ 890.198342] br-lan: port 2(phy0-ap0) entered forwarding state
[ 890.199520] br-lan: port 2(phy0-ap0) entered disabled state
[ 893.302924] mt7921e 0000:01:00.0: Message 00020003 (seq 14) timeout
[ 893.303541] phy0-ap0: failed to set key (1, ff:ff:ff:ff:ff:ff) to hardware (-110)
[ 896.502989] mt7921e 0000:01:00.0: Message 0004008a (seq 15) timeout
[ 899.703118] mt7921e 0000:01:00.0: Message 0004008a (seq 1) timeout
[ 902.903191] mt7921e 0000:01:00.0: Message 0004008a (seq 2) timeout
[ 906.103261] mt7921e 0000:01:00.0: Message 0004008a (seq 3) timeout
[ 909.303383] mt7921e 0000:01:00.0: Message 00020003 (seq 4) timeout
[ 909.304000] phy0-ap0: failed to set key (4, ff:ff:ff:ff:ff:ff) to hardware (-110)
[ 912.503466] mt7921e 0000:01:00.0: Message 0004008a (seq 5) timeout
[ 915.703516] mt7921e 0000:01:00.0: Message 0004008a (seq 6) timeout
[ 918.903610] mt7921e 0000:01:00.0: Message 0004008a (seq 7) timeout
[ 922.103675] mt7921e 0000:01:00.0: Message 0004008a (seq 8) timeout
[ 925.303772] mt7921e 0000:01:00.0: Message 0004008a (seq 9) timeout
[ 928.503822] mt7921e 0000:01:00.0: Message 0004008a (seq 10) timeout
[ 928.504490] mt7921e 0000:01:00.0: chip reset failed
[ 931.703902] mt7921e 0000:01:00.0: Message 00020001 (seq 11) timeout
[ 934.903956] mt7921e 0000:01:00.0: Message 00020002 (seq 14) timeout
[ 938.104021] mt7921e 0000:01:00.0: Message 00020003 (seq 15) timeout
[ 941.304074] mt7921e 0000:01:00.0: Message 00020002 (seq 1) timeout
[ 944.504180] mt7921e 0000:01:00.0: Message 00020002 (seq 2) timeout
[ 947.704235] mt7921e 0000:01:00.0: Message 0004008a (seq 3) timeout
[ 950.904313] mt7921e 0000:01:00.0: Message 0004008a (seq 4) timeout
[ 954.104351] mt7921e 0000:01:00.0: Message 0004008a (seq 5) timeout
[ 957.304444] mt7921e 0000:01:00.0: Message 0004008a (seq 6) timeout
[ 960.504579] mt7921e 0000:01:00.0: Message 0004008a (seq 7) timeout
[ 963.704578] mt7921e 0000:01:00.0: Message 0004008a (seq 8) timeout
[ 966.904638] mt7921e 0000:01:00.0: Message 0004008a (seq 9) timeout
[ 970.104707] mt7921e 0000:01:00.0: Message 0004008a (seq 10) timeout
[ 973.304787] mt7921e 0000:01:00.0: Message 0004008a (seq 11) timeout
[ 976.504853] mt7921e 0000:01:00.0: Message 0004008a (seq 12) timeout
[ 976.505524] mt7921e 0000:01:00.0: chip reset failed
[ 979.704950] mt7921e 0000:01:00.0: Message 00020001 (seq 13) timeout
[ 982.905124] mt7921e 0000:01:00.0: Message 00020002 (seq 2) timeout
[ 986.105267] mt7921e 0000:01:00.0: Message 00020003 (seq 3) timeout
[ 989.305366] mt7921e 0000:01:00.0: Message 0004008a (seq 5) timeout
[ 992.505497] mt7921e 0000:01:00.0: Message 0004008a (seq 6) timeout
[ 995.705637] mt7921e 0000:01:00.0: Message 0004008a (seq 7) timeout
[ 998.905762] mt7921e 0000:01:00.0: Message 0004008a (seq 8) timeout
[ 1002.105879] mt7921e 0000:01:00.0: Message 0004008a (seq 11) timeout
[ 1005.306024] mt7921e 0000:01:00.0: Message 0004008a (seq 12) timeout
[ 1008.506146] mt7921e 0000:01:00.0: Message 0004008a (seq 15) timeout
[ 1011.706250] mt7921e 0000:01:00.0: Message 0004008a (seq 1) timeout
[ 1014.906343] mt7921e 0000:01:00.0: Message 0004008a (seq 2) timeout
[ 1018.106482] mt7921e 0000:01:00.0: Message 0004008a (seq 3) timeout
[ 1018.107144] mt7921e 0000:01:00.0: chip reset failed
[ 1021.306592] mt7921e 0000:01:00.0: Message 00020001 (seq 6) timeout
[ 1024.506718] mt7921e 0000:01:00.0: Message 00020002 (seq 9) timeout
[ 1027.706816] mt7921e 0000:01:00.0: Message 00020003 (seq 10) timeout
[ 1030.907061] mt7921e 0000:01:00.0: Message 00020002 (seq 11) timeout
[ 1034.107183] mt7921e 0000:01:00.0: Message 00020002 (seq 12) timeout
[ 1037.307117] mt7921e 0000:01:00.0: Message 0004008a (seq 13) timeout
[ 1040.507212] mt7921e 0000:01:00.0: Message 0004008a (seq 14) timeout
[ 1043.707324] mt7921e 0000:01:00.0: Message 0004008a (seq 15) timeout
[ 1046.907420] mt7921e 0000:01:00.0: Message 0004008a (seq 1) timeout
[ 1050.107513] mt7921e 0000:01:00.0: Message 0004008a (seq 2) timeout
[ 1053.307653] mt7921e 0000:01:00.0: Message 0004008a (seq 3) timeout
[ 1056.507720] mt7921e 0000:01:00.0: Message 0004008a (seq 4) timeout
[ 1059.707783] mt7921e 0000:01:00.0: Message 0004008a (seq 5) timeout
[ 1062.907864] mt7921e 0000:01:00.0: Message 0004008a (seq 6) timeout
[ 1066.107961] mt7921e 0000:01:00.0: Message 0004008a (seq 7) timeout
[ 1066.108618] mt7921e 0000:01:00.0: chip reset failed
It appears whatever issue is happening is related to the use of encryption. I'm able to start up an open AP without issue, but setting any type of encryption produces the following logs.
"iw info" dump for the card
Wiphy phy0
wiphy index: 0
max # scan SSIDs: 4
max scan IEs length: 482 bytes
max # sched scan SSIDs: 10
max # match sets: 16
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports AP-side u-APSD.
Device supports T-DLS.
Available Antennas: TX 0x3 RX 0x3
Configured Antennas: TX 0x3 RX 0x3
Supported interface modes:
* managed
* AP
* AP/VLAN
* monitor
* P2P-client
* P2P-GO
Band 1:
Capabilities: 0x9ff
RX LDPC
HT20/HT40
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
HE Iftypes: managed
HE MAC Capabilities (0x08011a000040):
+HTC HE Supported
Trigger Frame MAC Padding Duration: 2
OM Control
Maximum A-MPDU Length Exponent: 3
A-MSDU in A-MPDU
HE PHY Capabilities: (0x2a70ce120dc0b3064e3f00):
HE40/2.4GHz
HE160/5GHz
242 tone RUs/2.4GHz
Device Class: 1
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
SU Beamformee
Beamformee STS <= 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
Triggered CQI Feedback
Partial Bandwidth Extended Range
PPE Threshold Present
Power Boost Factor ar
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
20MHz in 40MHz HE PPDU 2.4GHz
20MHz in 160/80+80MHz HE PPDU
80MHz in 160/80+80MHz HE PPDU
DCM Max BW: 1
Longer Than 16HE SIG-B OFDM Symbols
Non-Triggered CQI Feedback
TX 1024-QAM
RX 1024-QAM
RX Full BW SU Using HE MU PPDU with Compression SIGB
RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: managed
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw=160 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE Iftypes: AP
HE MAC Capabilities (0x00011a081044):
+HTC HE Supported
BSR
OM Control
Maximum A-MPDU Length Exponent: 3
BQR
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x0220ce120000a000000c00):
HE40/2.4GHz
LDPC Coding in Payload
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
Partial Bandwidth Extended Range
PPE Threshold Present
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: AP
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw=20 MHz, max NSS for MCS 0-7: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=20 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm) (no IR)
* 2472 MHz [13] (20.0 dBm) (no IR)
* 2484 MHz [14] (20.0 dBm) (no IR)
Band 2:
Capabilities: 0x9ff
RX LDPC
HT20/HT40
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
TX STBC
RX STBC 1-stream
Max AMSDU length: 7935 bytes
No DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: No restriction (0x00)
HT TX/RX MCS rate indexes supported: 0-15
VHT Capabilities (0x339071f6):
Max MPDU length: 11454
Supported Channel Width: 160 MHz
RX LDPC
short GI (80 MHz)
short GI (160/80+80 MHz)
TX STBC
SU Beamformee
MU Beamformee
RX antenna pattern consistency
TX antenna pattern consistency
VHT RX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT RX highest supported: 0 Mbps
VHT TX MCS set:
1 streams: MCS 0-9
2 streams: MCS 0-9
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
VHT TX highest supported: 0 Mbps
VHT extended NSS: supported
HE Iftypes: managed
HE MAC Capabilities (0x08011a000040):
+HTC HE Supported
Trigger Frame MAC Padding Duration: 2
OM Control
Maximum A-MPDU Length Exponent: 3
A-MSDU in A-MPDU
HE PHY Capabilities: (0x4c70ce120dc0b3064e3f00):
HE40/HE80/5GHz
HE160/5GHz
242 tone RUs/5GHz
Device Class: 1
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
SU Beamformee
Beamformee STS <= 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
Triggered CQI Feedback
Partial Bandwidth Extended Range
PPE Threshold Present
Power Boost Factor ar
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
20MHz in 40MHz HE PPDU 2.4GHz
20MHz in 160/80+80MHz HE PPDU
80MHz in 160/80+80MHz HE PPDU
DCM Max BW: 1
Longer Than 16HE SIG-B OFDM Symbols
Non-Triggered CQI Feedback
TX 1024-QAM
RX 1024-QAM
RX Full BW SU Using HE MU PPDU with Compression SIGB
RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: managed
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE Iftypes: AP
HE MAC Capabilities (0x00011a081044):
+HTC HE Supported
BSR
OM Control
Maximum A-MPDU Length Exponent: 3
BQR
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x0420ce120000a000000c00):
HE40/HE80/5GHz
LDPC Coding in Payload
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
Partial Bandwidth Extended Range
PPE Threshold Present
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: AP
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
Frequencies:
* 5180 MHz [36] (20.0 dBm)
* 5200 MHz [40] (20.0 dBm)
* 5220 MHz [44] (20.0 dBm)
* 5240 MHz [48] (20.0 dBm)
* 5260 MHz [52] (20.0 dBm) (no IR, radar detection)
* 5280 MHz [56] (20.0 dBm) (no IR, radar detection)
* 5300 MHz [60] (20.0 dBm) (no IR, radar detection)
* 5320 MHz [64] (20.0 dBm) (no IR, radar detection)
* 5500 MHz [100] (20.0 dBm) (no IR, radar detection)
* 5520 MHz [104] (20.0 dBm) (no IR, radar detection)
* 5540 MHz [108] (20.0 dBm) (no IR, radar detection)
* 5560 MHz [112] (20.0 dBm) (no IR, radar detection)
* 5580 MHz [116] (20.0 dBm) (no IR, radar detection)
* 5600 MHz [120] (20.0 dBm) (no IR, radar detection)
* 5620 MHz [124] (20.0 dBm) (no IR, radar detection)
* 5640 MHz [128] (20.0 dBm) (no IR, radar detection)
* 5660 MHz [132] (20.0 dBm) (no IR, radar detection)
* 5680 MHz [136] (20.0 dBm) (no IR, radar detection)
* 5700 MHz [140] (20.0 dBm) (no IR, radar detection)
* 5720 MHz [144] (20.0 dBm) (no IR, radar detection)
* 5745 MHz [149] (20.0 dBm) (no IR)
* 5765 MHz [153] (20.0 dBm) (no IR)
* 5785 MHz [157] (20.0 dBm) (no IR)
* 5805 MHz [161] (20.0 dBm) (no IR)
* 5825 MHz [165] (20.0 dBm) (no IR)
* 5845 MHz [169] (disabled)
* 5865 MHz [173] (disabled)
Band 4:
HE Iftypes: managed
HE MAC Capabilities (0x08011a000040):
+HTC HE Supported
Trigger Frame MAC Padding Duration: 2
OM Control
Maximum A-MPDU Length Exponent: 3
A-MSDU in A-MPDU
HE PHY Capabilities: (0x4c70ce120dc0b3064e3f00):
HE40/HE80/5GHz
HE160/5GHz
242 tone RUs/5GHz
Device Class: 1
LDPC Coding in Payload
HE SU PPDU with 1x HE-LTF and 0.8us GI
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
SU Beamformee
Beamformee STS <= 80Mhz: 3
Ng = 16 SU Feedback
Ng = 16 MU Feedback
Codebook Size SU Feedback
Codebook Size MU Feedback
Triggered CQI Feedback
Partial Bandwidth Extended Range
PPE Threshold Present
Power Boost Factor ar
HE SU PPDU & HE PPDU 4x HE-LTF 0.8us GI
20MHz in 40MHz HE PPDU 2.4GHz
20MHz in 160/80+80MHz HE PPDU
80MHz in 160/80+80MHz HE PPDU
DCM Max BW: 1
Longer Than 16HE SIG-B OFDM Symbols
Non-Triggered CQI Feedback
TX 1024-QAM
RX 1024-QAM
RX Full BW SU Using HE MU PPDU with Compression SIGB
RX Full BW SU Using HE MU PPDU with Non-Compression SIGB
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE RX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set 160 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: managed
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw=160 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
HE Iftypes: AP
HE MAC Capabilities (0x00011a081044):
+HTC HE Supported
BSR
OM Control
Maximum A-MPDU Length Exponent: 3
BQR
A-MSDU in A-MPDU
OM Control UL MU Data Disable RX
HE PHY Capabilities: (0x0420ce120000a000000c00):
HE40/HE80/5GHz
LDPC Coding in Payload
NDP with 4x HE-LTF and 3.2us GI
STBC Tx <= 80MHz
STBC Rx <= 80MHz
Full Bandwidth UL MU-MIMO
Partial Bandwidth UL MU-MIMO
DCM Max Constellation: 2
DCM Max Constellation Rx: 2
Partial Bandwidth Extended Range
PPE Threshold Present
TX 1024-QAM
RX 1024-QAM
HE RX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
HE TX MCS and NSS set <= 80 MHz
1 streams: MCS 0-11
2 streams: MCS 0-11
3 streams: not supported
4 streams: not supported
5 streams: not supported
6 streams: not supported
7 streams: not supported
8 streams: not supported
PPE Threshold 0x39 0x1c 0xc7 0x71 0x1c 0x07
EHT Iftypes: AP
EHT MAC Capabilities (0x0000):
EHT PHY Capabilities: (0x0000000000000000):
EHT MCS/NSS: (0x):
EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
Frequencies:
* 5955 MHz [1] (12.0 dBm)
* 5975 MHz [5] (12.0 dBm)
* 5995 MHz [9] (12.0 dBm)
* 6015 MHz [13] (12.0 dBm)
* 6035 MHz [17] (12.0 dBm)
* 6055 MHz [21] (12.0 dBm)
* 6075 MHz [25] (12.0 dBm)
* 6095 MHz [29] (12.0 dBm)
* 6115 MHz [33] (12.0 dBm)
* 6135 MHz [37] (12.0 dBm)
* 6155 MHz [41] (12.0 dBm)
* 6175 MHz [45] (12.0 dBm)
* 6195 MHz [49] (12.0 dBm)
* 6215 MHz [53] (12.0 dBm)
* 6235 MHz [57] (12.0 dBm)
* 6255 MHz [61] (12.0 dBm)
* 6275 MHz [65] (12.0 dBm)
* 6295 MHz [69] (12.0 dBm)
* 6315 MHz [73] (12.0 dBm)
* 6335 MHz [77] (12.0 dBm)
* 6355 MHz [81] (12.0 dBm)
* 6375 MHz [85] (12.0 dBm)
* 6395 MHz [89] (12.0 dBm)
* 6415 MHz [93] (12.0 dBm)
* 6435 MHz [97] (12.0 dBm)
* 6455 MHz [101] (12.0 dBm)
* 6475 MHz [105] (12.0 dBm)
* 6495 MHz [109] (12.0 dBm)
* 6515 MHz [113] (12.0 dBm)
* 6535 MHz [117] (12.0 dBm)
* 6555 MHz [121] (12.0 dBm)
* 6575 MHz [125] (12.0 dBm)
* 6595 MHz [129] (12.0 dBm)
* 6615 MHz [133] (12.0 dBm)
* 6635 MHz [137] (12.0 dBm)
* 6655 MHz [141] (12.0 dBm)
* 6675 MHz [145] (12.0 dBm)
* 6695 MHz [149] (12.0 dBm)
* 6715 MHz [153] (12.0 dBm)
* 6735 MHz [157] (12.0 dBm)
* 6755 MHz [161] (12.0 dBm)
* 6775 MHz [165] (12.0 dBm)
* 6795 MHz [169] (12.0 dBm)
* 6815 MHz [173] (12.0 dBm)
* 6835 MHz [177] (12.0 dBm)
* 6855 MHz [181] (12.0 dBm)
* 6875 MHz [185] (12.0 dBm)
* 6895 MHz [189] (12.0 dBm)
* 6915 MHz [193] (12.0 dBm)
* 6935 MHz [197] (12.0 dBm)
* 6955 MHz [201] (12.0 dBm)
* 6975 MHz [205] (12.0 dBm)
* 6995 MHz [209] (12.0 dBm)
* 7015 MHz [213] (12.0 dBm)
* 7035 MHz [217] (12.0 dBm)
* 7055 MHz [221] (12.0 dBm)
* 7075 MHz [225] (12.0 dBm)
* 7095 MHz [229] (12.0 dBm)
* 7115 MHz [233] (12.0 dBm)
valid interface combinations:
* #{ managed, P2P-client } <= 2, #{ AP, P2P-GO } <= 1,
total <= 2, #channels <= 2
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
max # scan plans: 1
max scan plan interval: 65535
max scan plan iterations: 0
Supported extended features:
* [ RRM ]: RRM
* [ SET_SCAN_DWELL ]: scan dwell setting
* [ BEACON_RATE_LEGACY ]: legacy beacon rate setting
* [ BEACON_RATE_HT ]: HT beacon rate setting
* [ BEACON_RATE_VHT ]: VHT beacon rate setting
* [ FILS_STA ]: STA FILS (Fast Initial Link Setup)
* [ CQM_RSSI_LIST ]: multiple CQM_RSSI_THOLD records
* [ CONTROL_PORT_OVER_NL80211 ]: control port over nl80211
* [ ACK_SIGNAL_SUPPORT ]: ack signal level support
* [ TXQS ]: FQ-CoDel-enabled intermediate TXQs
* [ CAN_REPLACE_PTK0 ]: can safely replace PTK 0 when rekeying
* [ AIRTIME_FAIRNESS ]: airtime fairness scheduling
* [ AQL ]: Airtime Queue Limits (AQL)
* [ CONTROL_PORT_NO_PREAUTH ]: disable pre-auth over nl80211 control port support
* [ SCAN_FREQ_KHZ ]: scan on kHz frequency support
* [ CONTROL_PORT_OVER_NL80211_TX_STATUS ]: tx status for nl80211 control port support
* [ BEACON_RATE_HE ]: HE beacon rate support (AP/mesh)
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Use the MT7922 setup with Linux kernel 6.1.26 and the cited mt76 revision; first compare open AP startup with encrypted AP startup while watching dmesg. Trace the reported key-setting timeout and repeated chip-reset failures in mt76; done means encrypted AP mode starts without the timeout and reset loop.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c, linux
- Domain
- networking, operating-systems
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100