I'm hacking around getting LEDE running on a DAP-2590 (for WIP thread see this OpenWrt forum thread)
This has a single ath9k which can select between 2.5GHz or 5GHz bands.
Everything looks happy, I can scan with the phy, but there is no beacon transmitted. I've been trying various channels/settings/modparams and such, and every once in a blue moon the SSID will pop up, but then it goes away again when I tweak a setting and won't come back even when I tweak it back.
Looking through debugfs I only saw a couple things that perhaps may be questionable: sometimes some SERVICE ERR counters increment in ath9k/phy_errs, and no matter what I set the per-ap twpower to, /sys/kernel/debug/ieee80211/phy0/netdev:wlan0/ap_power_level stays -2147483648. However looks OK.
RIght now I've got hostapd deinstalled and am just making an IBSS with iw. So far I haven't seen the SSID doing this... the few times it has appeared I was using hostapd.
Any hard core ath9k hackers got any ideas? I'm out of inspiration. Maybe some GPIO fiddling to try?
Wiphy phy0
max # scan SSIDs: 4
max scan IEs length: 2257 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
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 0x7 RX 0x7
Configured Antennas: TX 0x7 RX 0x7
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
* mesh point
* P2P-client
* P2P-GO
* outside context of a BSS
Band 1:
Capabilities: 0x104e
HT20/HT40
SM Power Save disabled
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-15
Frequencies:
* 2412 MHz [1] (23.0 dBm)
* 2417 MHz [2] (23.0 dBm)
* 2422 MHz [3] (23.0 dBm)
* 2427 MHz [4] (23.0 dBm)
* 2432 MHz [5] (23.0 dBm)
* 2437 MHz [6] (23.0 dBm)
* 2442 MHz [7] (23.0 dBm)
* 2447 MHz [8] (23.0 dBm)
* 2452 MHz [9] (23.0 dBm)
* 2457 MHz [10] (23.0 dBm)
* 2462 MHz [11] (23.0 dBm)
* 2467 MHz [12] (disabled)
* 2472 MHz [13] (disabled)
* 2484 MHz [14] (disabled)
Band 2:
Capabilities: 0x104e
HT20/HT40
SM Power Save disabled
RX HT40 SGI
No RX STBC
Max AMSDU length: 3839 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT TX/RX MCS rate indexes supported: 0-15
Frequencies:
* 5180 MHz [36] (21.0 dBm)
* 5200 MHz [40] (21.0 dBm)
* 5220 MHz [44] (21.0 dBm)
* 5240 MHz [48] (21.0 dBm)
* 5260 MHz [52] (21.0 dBm) (radar detection)
* 5280 MHz [56] (21.0 dBm) (radar detection)
* 5300 MHz [60] (21.0 dBm) (radar detection)
* 5320 MHz [64] (21.0 dBm) (radar detection)
* 5500 MHz [100] (21.0 dBm) (radar detection)
* 5520 MHz [104] (21.0 dBm) (radar detection)
* 5540 MHz [108] (21.0 dBm) (radar detection)
* 5560 MHz [112] (21.0 dBm) (radar detection)
* 5580 MHz [116] (21.0 dBm) (radar detection)
* 5600 MHz [120] (21.0 dBm) (radar detection)
* 5620 MHz [124] (21.0 dBm) (radar detection)
* 5640 MHz [128] (21.0 dBm) (radar detection)
* 5660 MHz [132] (21.0 dBm) (radar detection)
* 5680 MHz [136] (21.0 dBm) (radar detection)
* 5700 MHz [140] (21.0 dBm) (radar detection)
* 5745 MHz [149] (21.0 dBm)
* 5765 MHz [153] (21.0 dBm)
* 5785 MHz [157] (21.0 dBm)
* 5805 MHz [161] (21.0 dBm)
* 5825 MHz [165] (21.0 dBm)
valid interface combinations:
* #{ managed } <= 2048, #{ AP, mesh point } <= 8, #{ P2P-client, P2P-GO } <= 1, #{ IBSS } <= 1,
total <= 2048, #channels <= 1, STA/AP BI must match, radar detect widths: { 20 MHz (no HT), 20 MHz, 40 MHz }
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
phy#0
Interface wlan0
ifindex 9
wdev 0x3
addr 00:00:56:00:04:fb
ssid FOOBAR
type IBSS
channel 6 (2437 MHz), width: 20 MHz, center1: 2437 MHz
txpower 21.00 dBm
root@AP11:~# iw reg get
global
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
phy#0
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)
root@AP11:~# logread | grep iee
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.315771] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
Wed May 17 01:39:33 2017 kern.info kernel: [ 20.328323] ieee80211 phy0: Atheros AR9160 MAC/BB Rev:1 AR5133 RF Rev:b0 mem=0x80011b00f0000000, irq=109
root@AP11:~# logread | grep -e 'ath'
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.268195] ath: EEPROM regdomain: 0x0
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.272057] ath: EEPROM indicates default country code should be used
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.278577] ath: doing EEPROM country->regdmn map search
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.283959] ath: country maps to regdmn code: 0x3a
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.288816] ath: Country alpha2 being used: US
Wed May 17 01:39:33 2017 kern.debug kernel: [ 20.293324] ath: Regpair used: 0x3a
Wed May 17 01:39:39 2017 daemon.notice netifd: radio0 (864): WARNING (wireless_add_process): executable path /usr/sbin/hostapd does not match process path ()
root@AP11:~# cat /sys/class/ieee80211/phy0/device/enable
1
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/state
0x1
root@AP11:~# cat /sys/class/ieee80211/phy0/device/net/wlan0/operstate
up
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/power
23
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/netdev\:wlan0/txpower
23
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/rx_chainmask
7
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/tx_chainmask
7
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/phy_err
UNDERRUN ERR : 0
TIMING ERR : 0
PARITY ERR : 0
RATE ERR : 0
LENGTH ERR : 0
RADAR ERR : 0
SERVICE ERR : 0
TOR ERR : 0
OFDM-TIMING ERR : 0
OFDM-SIGNAL-PARITY ERR : 0
OFDM-RATE ERR : 0
OFDM-LENGTH ERR : 0
OFDM-POWER-DROP ERR : 0
OFDM-SERVICE ERR : 0
OFDM-RESTART ERR : 1
CCK-BLOCKER ERR : 0
CCK-TIMING ERR : 0
CCK-HEADER-CRC ERR : 0
CCK-RATE ERR : 0
CCK-LENGTH ERR : 0
CCK-POWER-DROP ERR : 0
CCK-SERVICE ERR : 0
CCK-RESTART ERR : 1
HT-CRC ERR : 0
HT-LENGTH ERR : 0
HT-RATE ERR : 0
HT-ZLF ERR : 0
FALSE-RADAR-EXT ERR : 0
GREEN-FIELD ERR : 0
SPECTRAL ERR : 0
root@AP11:~# cat /sys/kernel/debug/ieee80211/phy0/ath9k/xmit
BE BK VI VO
MPDUs Queued: 0 0 0 960
MPDUs Completed: 0 0 0 960
MPDUs XRetried: 0 0 0 0
Aggregates: 0 0 0 0
AMPDUs Queued HW: 0 0 0 0
AMPDUs Completed: 0 0 0 0
AMPDUs Retried: 0 0 0 0
AMPDUs XRetried: 0 0 0 0
TXERR Filtered: 0 0 0 0
FIFO Underrun: 0 0 0 0
TXOP Exceeded: 0 0 0 0
TXTIMER Expiry: 0 0 0 0
DESC CFG Error: 0 0 0 0
DATA Underrun: 0 0 0 0
DELIM Underrun: 0 0 0 0
TX-Pkts-All: 0 0 0 960
TX-Bytes-All: 0 0 0 71952
HW-put-tx-buf: 0 0 0 960
HW-tx-start: 0 0 0 960
HW-tx-proc-desc: 0 0 0 0
TX-Failed: 0 0 0 0