Regulatory Domains and Japan Channel 14
Peter Oh
poh at codeaurora.org
Mon Jan 18 10:10:21 PST 2016
On 01/18/2016 05:46 AM, Tomi Saarnio wrote:
> Dear All,
>
> We are trying to perform scanning at the 2.4GHz band with the JP (Japan)
> regulatory domain, but it seems that the ath10k refuses to scan the
> channel 14 although the channel 14 is a valid channel in Japan (with
> certain rate and transmit power limitations).
>
> We have set up an AP for the channel 14 (The AP is for Japanese market)
> and it is visible when capturing beacon frames with our existing network
> monitoring gear on channel 14.
>
> We have tried with two different ath10k firmwares. The setup is running
> the ath10k on a Gateworks Ventana board with Linux OpenWrt 4.1.6 provided
> by Gateworks.
>
> Firmware 1:
>
> [ 11.222699] ath10k_pci 0000:03:00.0: enabling device (0140 -> 0142)
> [ 11.229671] ath10k_pci 0000:03:00.0: pci irq legacy interrupts 0
> irq_mode 0 reset_mode 0
> [ 11.463218] ath10k_pci 0000:03:00.0: Direct firmware load for
> ath10k/cal-pci-0000:03:00.0.bin failed with error -2
> [ 11.473612] ath10k_pci 0000:03:00.0: Falling back to user helper
> [ 11.488114] firmware ath10k!cal-pci-0000:03:00.0.bin:
> firmware_loading_store: map pages failed
> [ 12.699649] ath10k_pci 0000:03:00.0: qca988x hw2.0 (0x4100016c,
> 0x043202ff) fw 10.2.4.70-2 api 5 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp
> max-sta 128 features no-p2p
> [ 12.716354] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.716370] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.716385] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.716400] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.725776] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.725793] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.735298] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.735326] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.735355] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.735378] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.796065] ath10k_pci 0000:03:00.0: debug 0 debugfs 1 tracing 0 dfs 1
> testmode 1
> [ 12.915521] ath10k_pci 0000:06:00.0: enabling device (0140 -> 0142)
> [ 12.922648] ath10k_pci 0000:06:00.0: pci irq legacy interrupts 0
> irq_mode 0 reset_mode 0
> [ 13.141720] ath10k_pci 0000:06:00.0: Direct firmware load for
> ath10k/cal-pci-0000:06:00.0.bin failed with error -2
> [ 13.152120] ath10k_pci 0000:06:00.0: Falling back to user helper
> [ 13.166544] firmware ath10k!cal-pci-0000:06:00.0.bin:
> firmware_loading_store: map pages failed
> [ 14.333721] ath10k_pci 0000:06:00.0: qca988x hw2.0 (0x4100016c,
> 0x043202ff) fw 10.2.4.70-2 api 5 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp
> max-sta 128 features no-p2p
> [ 14.348433] ath10k_pci 0000:06:00.0: debug 0 debugfs 1 tracing 0 dfs 1
> testmode 1
>
>
> Firmware 2:
>
> [ 11.322556] ath10k_pci 0000:03:00.0: enabling device (0140 -> 0142)
> [ 11.331562] ath10k_pci 0000:03:00.0: pci irq legacy interrupts 0
> irq_mode 0 reset_mode 0
> [ 11.547193] ath10k_pci 0000:03:00.0: Direct firmware load for
> ath10k/cal-pci-0000:03:00.0.bin failed with error -2
> [ 11.557589] ath10k_pci 0000:03:00.0: Falling back to user helper
> [ 11.571973] firmware ath10k!cal-pci-0000:03:00.0.bin:
> firmware_loading_store: map pages failed
> [ 12.775156] ath10k_pci 0000:03:00.0: qca988x hw2.0 (0x4100016c,
> 0x043202ff) fw 10.2.4.70.17-2 api 5 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp
> max-sta 128 features no-p2p
> [ 12.790225] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790244] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790259] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790275] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790289] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790304] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790319] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790334] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790353] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.790368] ath10k_pci 0000:03:00.0: no channel configured; ignoring
> frame(s)!
> [ 12.864307] ath10k_pci 0000:03:00.0: debug 0 debugfs 1 tracing 0 dfs 1
> testmode 1
> [ 12.979191] ath10k_pci 0000:06:00.0: enabling device (0140 -> 0142)
> [ 12.986343] ath10k_pci 0000:06:00.0: pci irq legacy interrupts 0
> irq_mode 0 reset_mode 0
> [ 13.205675] ath10k_pci 0000:06:00.0: Direct firmware load for
> ath10k/cal-pci-0000:06:00.0.bin failed with error -2
> [ 13.216077] ath10k_pci 0000:06:00.0: Falling back to user helper
> [ 13.230590] firmware ath10k!cal-pci-0000:06:00.0.bin:
> firmware_loading_store: map pages failed
> [ 14.403062] ath10k_pci 0000:06:00.0: qca988x hw2.0 (0x4100016c,
> 0x043202ff) fw 10.2.4.70.17-2 api 5 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp
> max-sta 128 features no-p2p
> [ 14.418343] ath10k_pci 0000:06:00.0: debug 0 debugfs 1 tracing 0 dfs 1
> testmode
>
> Set the regulatory domain to JP:
>
> # iw reg set JP
>
> [ 123.871988] cfg80211: Regulatory domain changed to country: JP
> [ 123.877850] cfg80211: DFS Master region: JProot at OpenWrt:/#
> [ 123.882030] cfg80211: (start_freq - end_freq @ bandwidth),
> (max_antenna_gain, max_eirp), (dfs_cac_time)
> [ 123.893148] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A,
> 2000 mBm), (N/A)
> [ 123.901187] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A,
> 2000 mBm), (N/A)
> [ 123.909220] cfg80211: (4910000 KHz - 4990000 KHz @ 40000 KHz), (N/A,
> 2300 mBm), (N/A)
> [ 123.917231] cfg80211: (5030000 KHz - 5090000 KHz @ 40000 KHz), (N/A,
> 2300 mBm), (N/A)
> [ 123.925261] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000
> KHz AUTO), (N/A, 2000 mBm), (N/A)
> [ 123.934766] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000
> KHz AUTO), (N/A, 2000 mBm), (0 s)
> [ 123.944273] cfg80211: (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A,
> 2300 mBm), (0 s)
> [ 123.952387] cfg80211: (59000000 KHz - 66000000 KHz @ 2160000 KHz),
> (N/A, 1000 mBm), (N/A)
>
> Verify the regulatory domain:
>
> # iw reg get
You'd better run "iw phy0 info" to see if the channel is activated.
>
> global
> country JP: DFS-JP
> (2402 - 2482 @ 40), (N/A, 20), (N/A)
> (2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM
> (4910 - 4990 @ 40), (N/A, 23), (N/A)
> (5030 - 5090 @ 40), (N/A, 23), (N/A)
> (5170 - 5250 @ 80), (N/A, 20), (N/A), AUTO-BW
> (5250 - 5330 @ 80), (N/A, 20), (0 ms), DFS, AUTO-BW
> (5490 - 5710 @ 160), (N/A, 23), (0 ms), DFS
> (59000 - 66000 @ 2160), (N/A, 10), (N/A)
>
> Perform passive scanning:
>
> # ifconfig wlan0 up
>
> # iw dev wlan0 scan passive | grep freq | sort
>
> The scanning produces a list of frequencies where the APs were heard but
> no channel 14 frequency 2484.
>
> Questions:
>
> - Will the Japan channel 14 be supported by ath10k for the scanning in
> near future?
> - What is the current status of the regulatory domains in general in the
> ath10k driver/firmware?
>
> Best regards,
> Tomi Saarnio
>
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