lkml.org 
[lkml]   [2020]   [Dec]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v2 2/2] net: dsa: qca: ar9331: export stats64
On Wed, Dec 02, 2020 at 03:04:38PM +0200, Vladimir Oltean wrote:
> On Wed, Dec 02, 2020 at 01:07:12PM +0100, Oleksij Rempel wrote:
> > Add stats support for the ar9331 switch.
> >
> > Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
> > ---
> > /* Warning: switch reset will reset last AR9331_SW_MDIO_PHY_MODE_PAGE request
> > @@ -422,6 +527,7 @@ static void ar9331_sw_phylink_mac_link_down(struct dsa_switch *ds, int port,
> > phy_interface_t interface)
> > {
> > struct ar9331_sw_priv *priv = (struct ar9331_sw_priv *)ds->priv;
> > + struct ar9331_sw_port *p = &priv->port[port];
> > struct regmap *regmap = priv->regmap;
> > int ret;
> >
> > @@ -429,6 +535,8 @@ static void ar9331_sw_phylink_mac_link_down(struct dsa_switch *ds, int port,
> > AR9331_SW_PORT_STATUS_MAC_MASK, 0);
> > if (ret)
> > dev_err_ratelimited(priv->dev, "%s: %i\n", __func__, ret);
> > +
> > + cancel_delayed_work_sync(&p->mib_read);
>
> Is this sufficient? Do you get a guaranteed .phylink_mac_link_down event
> on unbind? How do you ensure you don't race with the stats worker there?

Currently it works, but you are right, i'll better do this on remove as
well.

> > +static void ar9331_stats_update(struct ar9331_sw_port *port,
> > + struct rtnl_link_stats64 *stats)
> > +{
> > + struct ar9331_sw_stats *s = &port->stats;
> > +
> > + stats->rx_packets = s->rxbroad + s->rxmulti + s->rx64byte +
> > + s->rx128byte + s->rx256byte + s->rx512byte + s->rx1024byte +
> > + s->rx1518byte + s->rxmaxbyte;
> > + stats->tx_packets = s->txbroad + s->txmulti + s->tx64byte +
> > + s->tx128byte + s->tx256byte + s->tx512byte + s->tx1024byte +
> > + s->tx1518byte + s->txmaxbyte;
> > + stats->rx_bytes = s->rxgoodbyte;
> > + stats->tx_bytes = s->txbyte;
> > + stats->rx_errors = s->rxfcserr + s->rxalignerr + s->rxrunt +
> > + s->rxfragment + s->rxoverflow;
> > + stats->tx_errors = s->txoversize;
> > + stats->multicast = s->rxmulti;
> > + stats->collisions = s->txcollision;
> > + stats->rx_length_errors = s->rxrunt * s->rxfragment + s->rxtoolong;
>
> Multiplication? Is this right?

no. fixed.

> > + stats->rx_crc_errors = s->rxfcserr + s->rxalignerr + s->rxfragment;
> > + stats->rx_frame_errors = s->rxalignerr;
> > + stats->rx_missed_errors = s->rxoverflow;
> > + stats->tx_aborted_errors = s->txabortcol;
> > + stats->tx_fifo_errors = s->txunderrun;
> > + stats->tx_window_errors = s->txlatecol;
> > + stats->rx_nohandler = s->filtered;
> > +}
> > +
> > +static void ar9331_do_stats_poll(struct work_struct *work)
> > +{
> > +
>
> Could you remove this empty line.

fixed

Thank you!

Regards,
Oleksij
--
Pengutronix e.K. | |
Steuerwalder Str. 21 | http://www.pengutronix.de/ |
31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |

\
 
 \ /
  Last update: 2020-12-02 14:53    [W:0.062 / U:1.300 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site