netdev - Re: [PATCH] ucc_geth: Add BQL support

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Date:   Tue, 19 Jun 2018 19:06:07 +0000
From:   Joakim Tjernlund <Joakim.Tjernlund@...inera.com>
To:     "leoyang.li@....com" <leoyang.li@....com>,
        "dave.taht@...il.com" <dave.taht@...il.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH] ucc_geth: Add BQL support

On Tue, 2018-06-19 at 11:37 -0700, Dave Taht wrote:
> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe.
> 
> 
> very happy to see this. is there a specific chip or devboard this runs on?

This driver is for MPC83xx family SOCs(possibly others as well) on our custom boards, used in 
our telecom product.

You are actually the reason I impl. this :)

 Jocke

> 
> On Tue, Jun 19, 2018 at 11:24 AM, Li Yang <leoyang.li@....com> wrote:
> > On Tue, Jun 19, 2018 at 11:30 AM, Joakim Tjernlund
> > <joakim.tjernlund@...inera.com> wrote:
> > > Signed-off-by: Joakim Tjernlund <joakim.tjernlund@...inera.com>
> > 
> > Acked-by: Li Yang <leoyang.li@....com>
> > 
> > > ---
> > >  drivers/net/ethernet/freescale/ucc_geth.c | 7 ++++++-
> > >  1 file changed, 6 insertions(+), 1 deletion(-)
> > > 
> > > diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
> > > index f77ba9fa257b..6c99a9af6647 100644
> > > --- a/drivers/net/ethernet/freescale/ucc_geth.c
> > > +++ b/drivers/net/ethernet/freescale/ucc_geth.c
> > > @@ -3096,6 +3096,7 @@ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev)
> > > 
> > >         ugeth_vdbg("%s: IN", __func__);
> > > 
> > > +       netdev_sent_queue(dev, skb->len);
> > >         spin_lock_irqsave(&ugeth->lock, flags);
> > > 
> > >         dev->stats.tx_bytes += skb->len;
> > > @@ -3242,6 +3243,8 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
> > >         struct ucc_geth_private *ugeth = netdev_priv(dev);
> > >         u8 __iomem *bd;         /* BD pointer */
> > >         u32 bd_status;
> > > +       int howmany = 0;
> > > +       unsigned int bytes_sent = 0;
> > > 
> > >         bd = ugeth->confBd[txQ];
> > >         bd_status = in_be32((u32 __iomem *)bd);
> > > @@ -3257,7 +3260,8 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
> > >                 skb = ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]];
> > >                 if (!skb)
> > >                         break;
> > > -
> > > +               howmany++;
> > > +               bytes_sent += skb->len;
> > >                 dev->stats.tx_packets++;
> > > 
> > >                 dev_consume_skb_any(skb);
> > > @@ -3279,6 +3283,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
> > >                 bd_status = in_be32((u32 __iomem *)bd);
> > >         }
> > >         ugeth->confBd[txQ] = bd;
> > > +       netdev_completed_queue(dev, howmany, bytes_sent);
> > >         return 0;
> > >  }
> > > 
> > > --
> > > 2.13.6
> > > 
> 
> 
> 
> --
> 
> Dave Täht
> CEO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-669-226-2619