From: Yaroslav Isakov <yaroslav.isakov@gmail.com>
To: Kalle Valo <kvalo@kernel.org>
Cc: ath11k@lists.infradead.org
Subject: Re: wcn6855 - stuck in 20Mhz on rx, but full 80mhz on tx
Date: Wed, 27 Dec 2023 10:32:11 +0100 [thread overview]
Message-ID: <CADS+iDX1aU9h_OuR3K+r6hTX+zUrCyN0sG4uzyKm9+tThS9LZw@mail.gmail.com> (raw)
In-Reply-To: <CADS+iDV5eGc6RpWpzPMyO83xmiV1GgbZfqgeLnAukVaPv3BnJw@mail.gmail.com>
чт, 14 дек. 2023 г. в 21:29, Yaroslav Isakov <yaroslav.isakov@gmail.com>:
>
> чт, 14 дек. 2023 г. в 16:11, Kalle Valo <kvalo@kernel.org>:
> >
> > Yaroslav Isakov <yaroslav.isakov@gmail.com> writes:
> >
> > > Thank you for answer, unfortunately, I would prefer to stay on
> > > openwrt, until it will be ruled out, that issue is not with my laptop.
> >
> > I'm not asking you to switch your firmware, I was merely asking if you
> > had tested this with a stock firmware or not. The more datapoints we
> > have the better chances there are to fix this.
>
> Unfortunately, I did not test it with stock firmware.
>
> >
> > BTW, please don't top post:
> >
> > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches#do_not_top_post_and_edit_your_quotes
>
> Sorry, my bad - this is what Gmail does by default. Thank you for pointing out!
>
> >
> > --
> > https://patchwork.kernel.org/project/linux-wireless/list/
> >
> > https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
Hello!
I debug this issue further, a bit - it seems that it might be a
display issue. I enabled debug for ath11k driver, and it showed me
ath11k_pci 0000:02:00.0: mac peer <peer-address> phymode 11ac-vht80
Also, when testing with iperf3, it showed me 300 mbit/s, and it was
limited by CPU on router (ksoftirqd was 99%), which is much higher
than 150 mbit showed in iw dev wlan0 link
I also tried to use 802.11n on router (HT40), and with such setting,
iw dev wlan0 link showed me 300 mbit, with 40 mhz channel width
(although iperf3 showed 200 mbit) - so, it seems that this issue is
appearing only on VHT.
My phone (Pixel 7) was able to provide me HE, with which I did not
have such issue. I cannot downgrade it to VHT, to test, if the issue
will be reproduced with phone-provided WiFi, too (after disabling
802.11ac in wpa_supplicant, it rejected to find the network)
P.S. I updated firmware for laptop wifi, from
https://github.com/kvalo/ath11k-firmware/tree/master/WCN6855/hw2.0,
but, it did not change anything.
next prev parent reply other threads:[~2023-12-27 9:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-12 18:15 wcn6855 - stuck in 20Mhz on rx, but full 80mhz on tx Yaroslav Isakov
2023-12-13 5:16 ` Kalle Valo
2023-12-13 18:57 ` Yaroslav Isakov
2023-12-14 15:11 ` Kalle Valo
2023-12-14 20:29 ` Yaroslav Isakov
2023-12-27 9:32 ` Yaroslav Isakov [this message]
2023-12-29 16:46 ` Yaroslav Isakov
2023-12-29 17:06 ` Yaroslav Isakov
2023-12-29 17:19 ` Ben Greear
2023-12-29 17:38 ` Yaroslav Isakov
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