linux-kernel - Re: invalid vht params rate 1920 100kbps nss 2 mcs 9

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Date: Wed, 26 Jun 2024 13:16:58 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Paul Menzel <pmenzel@...gen.mpg.de>
Cc: Baochen Qiang <quic_bqiang@...cinc.com>,  James Prestwood
 <prestwoj@...il.com>,  linux-wireless@...r.kernel.org,
  ath10k@...ts.infradead.org,  LKML <linux-kernel@...r.kernel.org>
Subject: Re: invalid vht params rate 1920 100kbps nss 2 mcs 9

Paul Menzel <pmenzel@...gen.mpg.de> writes:

> Am 26.06.24 um 10:53 schrieb Baochen Qiang:
>
>> OK, there are two issues here:
>> 1. invalid HT rate: "ath10k_pci 0000:02:00.0: invalid ht params rate
>> 1440 100kbps nss 2 mcs 7".
>> As commented by Wen quite some time ago, this has been fixed from
>> firmware side, and firmware newer than [ver:241] has the fix
>> included.

I assume this means that the firmware version
WLAN.RM.4.4.1-00241-QCARMSWPZ-1 or newer has the fix.

>> 2. invaid VHT rate: "ath10k_pci 0000:3a:00.0: invalid vht params
>> rate 1920 100kbps nss 2 mcs 9".
>> After checking with firmware team, I thought this is because there
>> is
>> a mismatch in rate definition between host and firmware: In host, the
>> rate for 'nss 2 mcs 9' is defined as {1560, 1733}, see
>> supported_vht_mcs_rate_nss2[]. While in firmware this is defined as
>> {1730, 1920}. So seems we can update host definition to avoid this
>> issue.
> Looking through the logs since May 2024, I have four different logs:
>
> 1.  invalid vht params rate 878 100kbps nss 3 mcs 2
> 2.  invalid vht params rate 960 100kbps nss 1 mcs 9
> 3.  invalid vht params rate 1730 100kbps nss 2 mcs 9
> 4.  invalid vht params rate 1920 100kbps nss 2 mcs 9
>
> I believe it’s only happening with Cisco networks. I am happy to test
> a patch.
>
> By the way, is the firmware version logged by Linux?
>
>     ath10k_pci 0000:3a:00.0: qca6174 hw3.2 target 0x05030000 chip_id
>     0x00340aff sub 1a56:1535
>     ath10k_pci 0000:3a:00.0: kconfig debug 0 debugfs 0 tracing 0 dfs 0
>     testmode 0
>     ath10k_pci 0000:3a:00.0: firmware ver WLAN.RM.4.4.1-00288- api 6
>     features wowlan,ignore-otp,mfp crc32 bf907c7c
>     ath10k_pci 0000:3a:00.0: board_file api 2 bmi_id N/A crc32 d2863f91
>     ath10k_pci 0000:3a:00.0: htt-ver 3.87 wmi-op 4 htt-op 3 cal otp
>     max-sta 32 raw 0 hwcrypto 1
>
> Is it 4.4.1-00288?

Yes, that should be WLAN.RM.4.4.1-00288-QCARMSWPZ-1. But I don't know
why 'QCARMSWPZ-1' is not printed by ath10k, maybe we have a bug
somewhere.

> How can I find the file in `/lib/firmware/`?

It should be in ath10k/QCA6174/hw3.0/firmware-6.bin.

All firmware releases are available here:

https://git.codelinaro.org/clo/ath-firmware/ath10k-firmware/-/tree/main/QCA6174/hw3.0/4.4.1?ref_type=heads

And more info here:

https://wireless.wiki.kernel.org/en/users/drivers/ath10k/firmware

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