From: Mathias Nyman <mathias.nyman@linux.intel.com>
To: Erhard Furtner <erhard_f@mailbox.org>, linux-usb@vger.kernel.org
Cc: Mathias Nyman <mathias.nyman@intel.com>,
Chris Snook <chris.snook@gmail.com>,
stable@vger.kernel.org
Subject: Re: When VIA VL805/806 xHCI USB 3.0 Controller is present Atheros E2400 (alx) ethernet does not work: NETDEV WATCHDOG: enp5s0 (alx): transmit queue 2 timed out
Date: Mon, 20 Mar 2023 11:26:39 +0200 [thread overview]
Message-ID: <d14a6e71-d7da-db8d-f901-52d6cdf1fa1d@linux.intel.com> (raw)
In-Reply-To: <20230319013706.016d96b2@yea>
On 19.3.2023 2.37, Erhard Furtner wrote:
> Greetings!
>
> On my GIGABYTE GA-970-Gaming board (AM3+ board + AMD FX8370 CPU) I got this very annoying problem that onboard ethernet Atheros E2400 (alx) ceases to work when the USB 3.0 controller (VIA VL805/806 chipset) is enabled in BIOS.
>
> # lspci
> 02:00.0 USB controller: ASMedia Technology Inc. ASM2142/ASM3142 USB 3.1 Host Controller
> 06:00.0 USB controller: VIA Technologies, Inc. VL805/806 xHCI USB 3.0 Controller (rev 01)
dmesg shows usb bus numbers are not ordered, xhci driver registers two usb buses per host.
xhci_hcd 0000:06:00.0: new USB bus registered, assigned bus number 1
xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 2
xhci_hcd 0000:02:00.0: new USB bus registered, assigned bus number 3
xhci_hcd 0000:06:00.0: can't setup: -110
>
> With the VIA VL805/806 USB-Controller disabled in BIOS I don't get this problem, everything works fine. But this way I loose front USB 3 ports... The other ASMedia USB 3.1 controller works fine without hampering the system.
>
> Don't know whether this is a regression - the problem shows up on current kernel 6.2.x or 6.1.x TLS too. Kernel dmesg + .config attached.
>
> Regards,
> Erhard
This could be related to another case with two xHC controllers, but different vendors.
Bus numbers were interleaved there as well. Removing the asynch probe helped:
https://lore.kernel.org/linux-usb/d5ff9480-57bd-2c39-8b10-988ad0d14a7e@linux.intel.com/
Does reverting:
4c2604a9a689 usb: xhci-pci: Set PROBE_PREFER_ASYNCHRONOUS
help for you?
Thanks
Mathias
next prev parent reply other threads:[~2023-03-20 9:26 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-19 0:37 When VIA VL805/806 xHCI USB 3.0 Controller is present Atheros E2400 (alx) ethernet does not work: NETDEV WATCHDOG: enp5s0 (alx): transmit queue 2 timed out Erhard Furtner
2023-03-20 9:26 ` Mathias Nyman [this message]
2023-03-21 19:50 ` Erhard Furtner
2023-03-26 15:58 ` Erhard Furtner
2023-03-29 9:51 ` Mathias Nyman
2023-04-01 12:21 ` Erhard F.
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