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greearb / ath10k-ct

Stand-alone ath10k driver based on Candela Technologies Linux kernel.
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offchannel timeout in QCA9888 #34

Closed HenryGiraldo closed 5 years ago

HenryGiraldo commented 6 years ago

driver: ath10k-4.13 CT firmware: CT full-community 10.4-ct-9888-fH-011-cf79c7f Chipset: QCA9888. OS: OpenWrt 18.06

Does this firmware as well as the 10.1 htt have offchannel support? In the 10.1 htt I send packets in non-operating channels using the offchannel, in this firmware I cannot do it, I get timeouts:

timed out waiting for offchannel skb %pK, len: %d\n

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greearb commented 6 years ago

I think I might have partially broken 10.1 offchannel support, and plan to fix it shortly. But, I am not aware of any reason 10.4 would fail. Does upstream 10.4 firmware work for you?

HenryGiraldo commented 6 years ago

Capturing with Wireshark with 10.1 htt I can see the frames.

Firmware 10.4: Your htt gives the warning and I can't see the frames. With upstream firmware, frames don't appear in wireshark, but it doesn't get the warning either. I use the command nl80211_send_frame_cmd to send the frames through hostapd.

It is very odd, because when scanning, every probe that is sent appears in Wireshark

greearb commented 6 years ago

I uploaded new 10.4 beta images today. Please test with it and see if it works better. When checking a packet sniff, look for probe requests, responses, and ACKs for responses. Let me know if any of that is missing if the test still fails. http://www.candelatech.com/downloads/ath10k-9888-10-4/ath10k-fw-beta/

Stock firmware has issue sniffing probe requests I think, but otherwise it should properly do probe requests and responses.

HenryGiraldo commented 6 years ago

I've just tried it and the off-channel frames still trigger a timeout.

greearb commented 5 years ago

Is offchannel broken for you in stock firmware/driver, or just in ath10k-ct driver/firmware?

HenryGiraldo commented 5 years ago

I'm not sure, because I only tested it with your firmware. I habitually use package injection.