On 4 November 2015 at 01:00, <[email protected]> wrote: > Hello, > > I am having issues with the ath10k driver and the Qualcomm Atheros QCA6174 > network adapter. Seemingly randomly, the wireless connection on my laptop > stops working. dmesg outputs a long series of: > > [11061.645929] ath10k_pci 0000:07:00.0: failed to wake target for write32 of > 0x0000025c at 0x0003543c: -110
This looks very similar to how QCA99X0 failed when PCI PS was enabled for the card: http://lists.infradead.org/pipermail/ath10k/2015-September/005939.html As far as I know the reason of failure is not really understood and it simply was disabled to fix reliability. It seems that QCA6174 suffers from this as well - at least on your platform. This is rather sad as we'll probably need to disable it by default for QCA6174 now as well which will increase power consumption a little bit. > Rarely a reboot fixes this and I can use the network adapter again, but more > often than not, after a reboot, there is no output related to ath10k in > dmesg and the laptop is behaving as if the network adapter is not present. > The adapter eventually starts working again - I have not noticed a specific > pattern, sometimes it is after a few hours, sometimes I couldn't get it > working for days. > > I have tried thoroughly searching online but was unable to find anything > that would be of help. I do admit I am a little out of my depth here, but I > will happily provide any further information necessary in order to diagnose > and fix this. > > I am on Xubuntu 15.10, kernel 4.2.0-16-generic. Can you perhaps try compiling the kernel from: git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git with the following diff applied: diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c index 3fca200b986c..edf7a7637d88 100644 --- a/drivers/net/wireless/ath/ath10k/pci.c +++ b/drivers/net/wireless/ath/ath10k/pci.c @@ -2968,7 +2968,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev, case QCA6164_2_1_DEVICE_ID: case QCA6174_2_1_DEVICE_ID: hw_rev = ATH10K_HW_QCA6174; - pci_ps = true; + pci_ps = false; break; case QCA99X0_2_0_DEVICE_ID: hw_rev = ATH10K_HW_QCA99X0; and report back if this fixes the problem for you, please? Michał _______________________________________________ ath10k mailing list [email protected] http://lists.infradead.org/mailman/listinfo/ath10k
