[PATCH v2] net: e1000: add defaults for i210 TX/RX PBSIZE
Tom Rini
trini at konsulko.com
Wed Oct 14 19:43:36 CEST 2020
On Tue, Oct 06, 2020 at 04:08:35PM +0200, Christian Gmeiner wrote:
> Set the defaults on probe for the packet buffer size registers
> for the i210.
>
> The TX/RX PBSIZE register of the i210 resets to its default value
> only at power-on - see Intel Ethernet Controller I210 Datasheet rev 3.5
> chapter 8.3 'Internal Packet Buffer Size Registers'.
>
> If something (another driver, another OS, etc.) modifies this register
> from its default value, the e1000 driver doesn't function correctly. It
> detects a hang of the transmitter and continuously resets the adapter.
> Here we set this value to its default when resetting the i210 to
> resolve this issue.
>
> Signed-off-by: Christian Gmeiner <christian.gmeiner at gmail.com>
Applied to u-boot/master, thanks!
--
Tom
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