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From: Nikolai Zhubr <zhubr.2@gmail.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Chris Snook <chris.snook@gmail.com>, netdev@vger.kernel.org
Subject: Re: A problem with "ip=..." ipconfig and Atheros alx driver.
Date: Fri, 30 Apr 2021 20:15:24 +0300	[thread overview]
Message-ID: <608C3B2C.8040005@gmail.com> (raw)
In-Reply-To: <419eea59adc7af954f98ac81ec41a7be9cc0d9bb.camel@sipsolutions.net>

Hi Johannes,

30.04.2021 15:08, Johannes Berg:
>> rtnl_unlock(). Hence this delay and timeout.
>
> Fun. But we can just do it synchronously?
>
> https://p.sipsolutions.net/e4f076ed1b4c8a78.txt

Wow, that was quick! Thanks! However, unfortunately this patch still 
does not quite fix the problem. Although alx_check_link() now gets 
called synchronously at open, it somehow does not pass below the "if 
(old_speed == hw->link_speed) return" line here. I'd guess it is because 
the chip is not yet able to report meaningfull values immediately after 
initialization. The result is still the same: 120 seconds timeout 
happens, then the "eth0: NIC Up: 1 Gbps Full" message appears 
immediately and all is fine after that.
I'll do some more testing later today.


Thank you,

Regards,
Nikolai


>
> johannes
>
>


  reply	other threads:[~2021-04-30 17:06 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-30 11:59 A problem with "ip=..." ipconfig and Atheros alx driver Nikolai Zhubr
2021-04-30 12:08 ` Johannes Berg
2021-04-30 17:15   ` Nikolai Zhubr [this message]
2021-04-30 19:02     ` Johannes Berg
2021-05-01  0:01       ` Nikolai Zhubr
2021-05-01 13:50         ` Nikolai Zhubr
2021-05-02  9:04           ` Johannes Berg
2021-05-02 10:28             ` Nikolai Zhubr
2021-05-02 11:22               ` Johannes Berg

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