[OpenWrt-Devel] Ath10k initialization in CC - questions

[Shankar Unni]

We have an openwrt build that we're working with, that has the most recent compat-wireless from the trunk (package/kernel/mac80211).

When we load the ath10k driver, it seems to pause for several seconds and write out a message about not finding a particular firmware file:

[    6.418730] ath10k_pci 0000:01:00.0: pci irq msi interrupts 1 irq_mode 0 reset_mode 0
[    6.548286] ath10k_pci 0000:01:00.0: Direct firmware load failed with error -2
[    6.555670] ath10k_pci 0000:01:00.0: Falling back to user helper
procd: Could not find firmware /lib/firmware/ath10k/cal-pci-0000:01:00.0.bin
[   13.546479] ath10k_pci 0000:01:00.0: qca988x hw2.0 (0x4100016c, 0x043202ff) fw 10.2.4.45 api 4 htt 2.1 wmi 5 cal otp max_sta 128
[   13.558583] ath10k_pci 0000:01:00.0: no channel configured; ignoring frame(s)!
[   13.566102] ath10k_pci 0000:01:00.0: debug 0 debugfs 1 tracing 0 dfs 1 testmode 1
[   13.566109] ath10k_pci 0000:01:00.0: no channel configured; ignoring frame(s)!

And of course, there is no such file (/lib/firmware/ath10k/cal-pci-0000:01:00.0.bin). Where do we get this file from (or how do we create it)? Is this something I should be worried about?  Also, what's this direct firmware load message? Is that for the same file (I'm expecting so).

Also, the 7 second pause.  But that, I guess, is because the ath10k driver load is now synchronous, right? 

Finally, should I worry about the "no channel configured; ignoring frame(s)" message? It gets emitted several times at driver load time, but stops after that.
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