[U-Boot] [PATCH 1/2] net: designware: fix tx packet length

[Joe Hershberger]

On Sat, Nov 17, 2018 at 3:25 AM Simon Goldschmidt
<simon.k.r.goldschmidt at gmail.com> wrote:
>
> The designware driver has a bug in setting the tx length into the dma
> descriptor: it always or's the length into the descriptor without
> zeroing out the length mask before.
>
> This results in occasional packets being transmitted with a length
> greater than they should be (trailer). Due to the nature of Ethernet
> allowing such a trailer, most packets seem to be parsed fine by remote
> hosts, which is probably why this hasn't been noticed.
>
> Fix this by correctly clearing the size mask before setting the new
> length.
>
> Tested on socfpga gen5.
>
> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>

Acked-by: Joe Hershberger <joe.hershberger at ni.com>