Commit 865e6ae0 authored by Lev Stipakov's avatar Lev Stipakov Committed by Jakub Kicinski
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net: openvswitch: use core API to update/provide stats



Commit d3fd6548 ("net: core: add dev_sw_netstats_tx_add") has added
function "dev_sw_netstats_tx_add()" to update net device per-cpu TX
stats.

Use this function instead of own code.

While on it, remove internal_get_stats() and replace it
with dev_get_tstats64().

Signed-off-by: default avatarLev Stipakov <lev@openvpn.net>
Reviewed-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/20201113215336.145998-1-lev@openvpn.net


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent cf70b5cf
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+7 −22
Original line number Diff line number Diff line
@@ -35,21 +35,18 @@ internal_dev_xmit(struct sk_buff *skb, struct net_device *netdev)
{
	int len, err;

	/* store len value because skb can be freed inside ovs_vport_receive() */
	len = skb->len;

	rcu_read_lock();
	err = ovs_vport_receive(internal_dev_priv(netdev)->vport, skb, NULL);
	rcu_read_unlock();

	if (likely(!err)) {
		struct pcpu_sw_netstats *tstats = this_cpu_ptr(netdev->tstats);

		u64_stats_update_begin(&tstats->syncp);
		tstats->tx_bytes += len;
		tstats->tx_packets++;
		u64_stats_update_end(&tstats->syncp);
	} else {
	if (likely(!err))
		dev_sw_netstats_tx_add(netdev, 1, len);
	else
		netdev->stats.tx_errors++;
	}

	return NETDEV_TX_OK;
}

@@ -83,24 +80,12 @@ static void internal_dev_destructor(struct net_device *dev)
	ovs_vport_free(vport);
}

static void
internal_get_stats(struct net_device *dev, struct rtnl_link_stats64 *stats)
{
	memset(stats, 0, sizeof(*stats));
	stats->rx_errors  = dev->stats.rx_errors;
	stats->tx_errors  = dev->stats.tx_errors;
	stats->tx_dropped = dev->stats.tx_dropped;
	stats->rx_dropped = dev->stats.rx_dropped;

	dev_fetch_sw_netstats(stats, dev->tstats);
}

static const struct net_device_ops internal_dev_netdev_ops = {
	.ndo_open = internal_dev_open,
	.ndo_stop = internal_dev_stop,
	.ndo_start_xmit = internal_dev_xmit,
	.ndo_set_mac_address = eth_mac_addr,
	.ndo_get_stats64 = internal_get_stats,
	.ndo_get_stats64 = dev_get_tstats64,
};

static struct rtnl_link_ops internal_dev_link_ops __read_mostly = {