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Re: mwifiex 1.0 (16.68.10.p159) - PCIEUSB-8997 firmware is buggy

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Héllo all,

A quick reply, just to correct a mistype sentence about the issue !

Le 27/09/2021 à 15:47, Josh Boyer a écrit :
> On Sun, Sep 26, 2021 at 6:43 AM Pali Rohár <pali@xxxxxxxxxx> wrote:
>> Hello Josh, Sharvari and other from NXP!
>>
>> On Saturday 25 September 2021 19:23:48 Gérald Kerma wrote:
>>> Correcting old marvell address to new nxp...
>>>
>>> Le 25/09/2021 à 19:19, Gérald Kerma a écrit :
>>>> Héllo All,
>>>>
>>>> I made some few tests on EspressoBin-Ultra from GlobalScaleTechnologies,
>>>> because of problem with the WiFi.
>>>>
>>>> I have done some quick tests on all the firmware of PCIEUSB-8997 using
>>>> the pcieuart8997_combo_v4.bin on OpenWrt 21.02.x
>>>>
>>>> Here is a summary of the tests :
>>>> - W16.68.10.p159 = KO
>>>> - W16.68.1.p195 = KO
>>>> - V16.68.1.p145 = OK
>>>> - 16.68.1.p140 = OK
>>>> - 16.68.1.p133 = OK
>>>> - 16.68.1.p97 = OK
>>>> - 16.68.1.p70 = KO
>> From this user test result can be seen that last two versions of
>> pcieusb8997_combo_v4.bin firmware file for 8997 wifi+bt card with
>> official mainline linux kernel driver mwifiex were not properly tested
>> internally in NXP and are causing serious issues which make 8997 card
>> basically unusable.
>>
>> Sharvari and other NXP developers: Do you have some internal testing of
>> this pcieusb8997_combo_v4.bin firmware for PCIe+USB variant of 8997
>> wifi chips? Or are you aware of this issue and do you have in NXP some
>> workaround for it (e.g. at driver level)? Could you please look at this
>> serious issue and try to debug firmware and release a new version, as
>> this is obvious fatal error in firmware itself?
>>
>> Josh, how you in linux-firmware repository handle such, I must say,
>> "fatal issues"? Wait for vendor fixes or revert problematic commits? Or
>> something else?
> We can revert if we need to, but I think it's not quite that simple.
>
>> Because when users starts upgrading linux-firmware packages in their
>> downstream distributions then basically wifi cards on this 8997 chips
>> with official mwifiex driver stops working.
> The first broken version was committed in Feb of 2019.  That's
> approaching 3 years ago.  Given that this is binary firmware, I have
> no idea what else may or may not be included in the updates in the
> meantime.
>
> josh
>
>>>> REF (and all details of tests) :
>>>> https://github.com/NXP/mwifiex-firmware/issues/1
>>>>
>>>>
>>>> Broken firmware :
>>>>
>>>> Version |W16.68.1.p195| of |pcieusb8997_combo_v4.bin| was included into
>>>> linux-firmware repository by this pull request:
>>>> https://lore.kernel.org/all/CA+5PVA5yQbjg3vaT7F8120B6ngLn7+sZC0OWt0KoUiQR9hS4FA@xxxxxxxxxxxxxx/
>>>> <https://lore.kernel.org/all/CA+5PVA5yQbjg3vaT7F8120B6ngLn7+sZC0OWt0KoUiQR9hS4FA@xxxxxxxxxxxxxx/>
>>>>
>>>> And latest version |W16.68.10.p159| of |pcieusb8997_combo_v4.bin| by
>>>> this pull request:
>>>> https://lore.kernel.org/linux-firmware/CA+5PVA5on7+CRtEV7tThPxgucwt3W9i-tEXm4cgH-AmMB-Jrtg@xxxxxxxxxxxxxx/
>>>> <https://lore.kernel.org/linux-firmware/CA+5PVA5on7+CRtEV7tThPxgucwt3W9i-tEXm4cgH-AmMB-Jrtg@xxxxxxxxxxxxxx/>
>>>>
>>>> Olders looks to works better.
>>>>
>>>> In quick tests, they allow more than 1 clients at a time !

In quick tests, they do *NOT* allow more than only 1 client at a time !

>>>> I am still testing the V16.68.1.p145 and report the results after some
>>>> longer use...
>>>>
>>>> Hopes it will help...
>>>> Regards,
>>>> Gérald Kerma
>>>> gandalf(at)gk2(dot)net
Gérald



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