[PATCH 0/4] lantiq: fix VDSL2 vectoring

Martin Blumenstingl martin.blumenstingl at googlemail.com
Mon Mar 21 04:10:22 PDT 2022

Hi Jan,

On Sun, Mar 13, 2022 at 10:17 PM Jan Hoffmann <jan at 3e8.eu> wrote:
> For vectoring to work, the modem needs to send error reports to the
> vectoring control entity at the carrier office. With Lantiq VR9/VR10
> modems, a separate driver is needed to do this, which is currently
> missing in OpenWrt.
> In addition to that, the DSL connection may be interrupted at random
> intervals due to insufficient locking in the MEI driver. While this is
> technically not specific to vectoring, the additional interrupts from
> the error reports seem to trigger the issue.
> This patch set addresses both issues. The changes have been available
> in the forum [0] for some time now. Multiple users who previously
> experienced instability on vectoring-enabled VDSL2 lines have reported
> that these patches actually allow a stable connection.
I haven't experienced this personally. Still thank you for documenting
and working on this!

> Jan Hoffmann (4):
>   ltq-vectoring: add driver
>   ltq-vdsl-mei: enable vectoring error sample callback
>   ltq-vdsl-app: set MAC address for vectoring error reports
>   ltq-vdsl-mei: add locking to interrupt handler
I have tested these patches for a few days and they don't break my
HH5A so this gets my:
Tested-by: Martin Blumenstingl <martin.blumenstingl at googlemail.com>

Best regards,

More information about the openwrt-devel mailing list