netdev - Re: [PATCH net-next v2 4/4] gve: Add ethtool support

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Date:   Fri, 28 Jun 2019 16:05:33 -0700
From:   Catherine Sullivan <csully@...gle.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
Cc:     netdev@...r.kernel.org, Sagi Shahar <sagis@...gle.com>,
        Jon Olson <jonolson@...gle.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Luigi Rizzo <lrizzo@...gle.com>
Subject: Re: [PATCH net-next v2 4/4] gve: Add ethtool support

On Fri, Jun 28, 2019 at 11:11 AM Stephen Hemminger
<stephen@...workplumber.org> wrote:
>
> On Fri, 28 Jun 2019 10:56:33 -0700
> Catherine Sullivan <csully@...gle.com> wrote:
>
> > +static void
> > +gve_get_ethtool_stats(struct net_device *netdev,
> > +                   struct ethtool_stats *stats, u64 *data)
> > +{
> > +     struct gve_priv *priv = netdev_priv(netdev);
> > +     u64 rx_pkts, rx_bytes, tx_pkts, tx_bytes;
> > +     int ring;
> > +     int i;
> > +
> > +     ASSERT_RTNL();
> > +
> > +     for (rx_pkts = 0, rx_bytes = 0, ring = 0;
> > +          ring < priv->rx_cfg.num_queues; ring++) {
> > +             if (priv->rx) {
> > +                     rx_pkts += priv->rx[ring].rpackets;
> > +                     rx_bytes += priv->rx[ring].rbytes;
> > +             }
> > +     }
> > +     for (tx_pkts = 0, tx_bytes = 0, ring = 0;
> > +          ring < priv->tx_cfg.num_queues; ring++) {
> > +             if (priv->tx) {
> > +                     tx_pkts += priv->tx[ring].pkt_done;
> > +                     tx_bytes += priv->tx[ring].bytes_done;
> > +             }
> > +     }
> > +     memset(data, 0, GVE_MAIN_STATS_LEN * sizeof(*data));
>
> memset here is unnecessary since ethtool_get_stats allocates
> and zeros the memory already.

Ah, thanks, removed in v3.