Re: [PATCH] net: ethernet: ti: cpsw: fix rx-usecs interrupt pacing consistency
From: David Miller
Date: Fri Jun 03 2016 - 19:35:41 EST
From: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
Date: Thu, 2 Jun 2016 16:14:52 +0300
> The rx-usecs shouldn't be changed while interface down/up.
> Currently, for instance, if it's set to 100us, after interface
> down/up it's 500us. It's a hidden bug that can lead to lavish
> interrupt pacing time increasing while "down/up" up to max value.
> Steps to reproduce:
> - set rx-usecs to be 100us
> - down/up interface
> - read new unexpected rx-usecs
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>