On Thu, 22 Oct 2020 at 07:41, Benjamin Herrenschmidt
wrote:
>
> On Wed, 2020-10-21 at 14:40 +0200, Arnd Bergmann wrote:
> > On Wed, Oct 21, 2020 at 12:39 PM Joel Stanley wrote:
> >
> > >
> > > diff --git a/drivers/net/ethernet/faraday/ftgmac100.c
> > > b/drivers/net/ethernet/faraday/ftgmac100.c
On Wed, Oct 28, 2020 at 5:47 AM Joel Stanley wrote:
>
> On Thu, 22 Oct 2020 at 07:41, Benjamin Herrenschmidt
> wrote:
> > > >
> > > > + /* Ensure the descriptor config is visible before setting the tx
> > > > +* pointer.
> > > > +*/
> > > > + smp_wmb();
> > > > +
> >
On Wed, 2020-10-21 at 14:40 +0200, Arnd Bergmann wrote:
> On Wed, Oct 21, 2020 at 12:39 PM Joel Stanley wrote:
>
> >
> > diff --git a/drivers/net/ethernet/faraday/ftgmac100.c
> > b/drivers/net/ethernet/faraday/ftgmac100.c
> > index 331d4bdd4a67..15cdfeb135b0 100644
> > ---
On Wed, 2020-10-21 at 08:18 +, David Laight wrote:
> From: Benjamin Herrenschmidt
> > Sent: 21 October 2020 01:00
> >
> > On Wed, 2020-10-21 at 08:36 +1030, Joel Stanley wrote:
> > > We must ensure the tx descriptor updates are visible before updating
> > > the tx pointer.
> > >
> > > This
On Wed, 21 Oct 2020 at 12:40, Arnd Bergmann wrote:
>
> On Wed, Oct 21, 2020 at 12:39 PM Joel Stanley wrote:
>
> >
> > diff --git a/drivers/net/ethernet/faraday/ftgmac100.c
> > b/drivers/net/ethernet/faraday/ftgmac100.c
> > index 331d4bdd4a67..15cdfeb135b0 100644
> > ---
On Wed, Oct 21, 2020 at 12:39 PM Joel Stanley wrote:
>
> diff --git a/drivers/net/ethernet/faraday/ftgmac100.c
> b/drivers/net/ethernet/faraday/ftgmac100.c
> index 331d4bdd4a67..15cdfeb135b0 100644
> --- a/drivers/net/ethernet/faraday/ftgmac100.c
> +++ b/drivers/net/ethernet/faraday/ftgmac100.c
From: Benjamin Herrenschmidt
> Sent: 21 October 2020 01:00
>
> On Wed, 2020-10-21 at 08:36 +1030, Joel Stanley wrote:
> > We must ensure the tx descriptor updates are visible before updating
> > the tx pointer.
> >
> > This resolves the tx hangs observed on the 2600 when running iperf:
>
> To
On Wed, 21 Oct 2020 at 00:00, Benjamin Herrenschmidt
wrote:
>
> On Wed, 2020-10-21 at 08:36 +1030, Joel Stanley wrote:
> > We must ensure the tx descriptor updates are visible before updating
> > the tx pointer.
> >
> > This resolves the tx hangs observed on the 2600 when running iperf:
>
> To
On Wed, 2020-10-21 at 08:36 +1030, Joel Stanley wrote:
> We must ensure the tx descriptor updates are visible before updating
> the tx pointer.
>
> This resolves the tx hangs observed on the 2600 when running iperf:
To clarify the comment here. This doesn't ensure they are visible to
the
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