Commit a003ec1f authored by Jakub Kicinski's avatar Jakub Kicinski
Browse files

Merge branch 'net-add-and-use-function-dev_fetch_sw_netstats-for-fetching-pcpu_sw_netstats' 



Heiner Kallweit says:

====================
net: add and use function dev_fetch_sw_netstats for fetching pcpu_sw_netstats

In several places the same code is used to populate rtnl_link_stats64
fields with data from pcpu_sw_netstats. Therefore factor out this code
to a new function dev_fetch_sw_netstats().
====================

Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parents 3618ad2a 5fc3594d

drivers/infiniband/hw/hfi1/ipoib_main.c

+1 −33
Original line number Diff line number Diff line
@@ -97,41 +97,9 @@ static void hfi1_ipoib_dev_get_stats64(struct net_device *dev, 
				       struct rtnl_link_stats64 *storage)

{

	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);

	u64 rx_packets = 0ull;

	u64 rx_bytes = 0ull;

	u64 tx_packets = 0ull;

	u64 tx_bytes = 0ull;

	int i;



	netdev_stats_to_stats64(storage, &dev->stats);



	for_each_possible_cpu(i) {

		const struct pcpu_sw_netstats *stats;

		unsigned int start;

		u64 trx_packets;

		u64 trx_bytes;

		u64 ttx_packets;

		u64 ttx_bytes;



		stats = per_cpu_ptr(priv->netstats, i);

		do {

			start = u64_stats_fetch_begin_irq(&stats->syncp);

			trx_packets = stats->rx_packets;

			trx_bytes = stats->rx_bytes;

			ttx_packets = stats->tx_packets;

			ttx_bytes = stats->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats->syncp, start));



		rx_packets += trx_packets;

		rx_bytes += trx_bytes;

		tx_packets += ttx_packets;

		tx_bytes += ttx_bytes;

	}



	storage->rx_packets += rx_packets;

	storage->rx_bytes += rx_bytes;

	storage->tx_packets += tx_packets;

	storage->tx_bytes += tx_bytes;

	dev_fetch_sw_netstats(storage, priv->netstats);

}



static const struct net_device_ops hfi1_ipoib_netdev_ops = {

drivers/net/macsec.c

+1 −21
Original line number Diff line number Diff line
@@ -3647,30 +3647,10 @@ static int macsec_change_mtu(struct net_device *dev, int new_mtu) 
static void macsec_get_stats64(struct net_device *dev,

			       struct rtnl_link_stats64 *s)

{

	int cpu;



	if (!dev->tstats)

		return;



	for_each_possible_cpu(cpu) {

		struct pcpu_sw_netstats *stats;

		struct pcpu_sw_netstats tmp;

		int start;



		stats = per_cpu_ptr(dev->tstats, cpu);

		do {

			start = u64_stats_fetch_begin_irq(&stats->syncp);

			tmp.rx_packets = stats->rx_packets;

			tmp.rx_bytes   = stats->rx_bytes;

			tmp.tx_packets = stats->tx_packets;

			tmp.tx_bytes   = stats->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats->syncp, start));



		s->rx_packets += tmp.rx_packets;

		s->rx_bytes   += tmp.rx_bytes;

		s->tx_packets += tmp.tx_packets;

		s->tx_bytes   += tmp.tx_bytes;

	}

	dev_fetch_sw_netstats(s, dev->tstats);



	s->rx_dropped = dev->stats.rx_dropped;

	s->tx_dropped = dev->stats.tx_dropped;

drivers/net/usb/qmi_wwan.c

+1 −23
Original line number Diff line number Diff line
@@ -126,31 +126,9 @@ static void qmimux_get_stats64(struct net_device *net, 
			       struct rtnl_link_stats64 *stats)

{

	struct qmimux_priv *priv = netdev_priv(net);

	unsigned int start;

	int cpu;



	netdev_stats_to_stats64(stats, &net->stats);



	for_each_possible_cpu(cpu) {

		struct pcpu_sw_netstats *stats64;

		u64 rx_packets, rx_bytes;

		u64 tx_packets, tx_bytes;



		stats64 = per_cpu_ptr(priv->stats64, cpu);



		do {

			start = u64_stats_fetch_begin_irq(&stats64->syncp);

			rx_packets = stats64->rx_packets;

			rx_bytes = stats64->rx_bytes;

			tx_packets = stats64->tx_packets;

			tx_bytes = stats64->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats64->syncp, start));



		stats->rx_packets += rx_packets;

		stats->rx_bytes += rx_bytes;

		stats->tx_packets += tx_packets;

		stats->tx_bytes += tx_bytes;

	}

	dev_fetch_sw_netstats(stats, priv->stats64);

}



static const struct net_device_ops qmimux_netdev_ops = {

drivers/net/usb/usbnet.c

+1 −23
Original line number Diff line number Diff line
@@ -983,31 +983,9 @@ EXPORT_SYMBOL_GPL(usbnet_set_link_ksettings); 
void usbnet_get_stats64(struct net_device *net, struct rtnl_link_stats64 *stats)

{

	struct usbnet *dev = netdev_priv(net);

	unsigned int start;

	int cpu;



	netdev_stats_to_stats64(stats, &net->stats);



	for_each_possible_cpu(cpu) {

		struct pcpu_sw_netstats *stats64;

		u64 rx_packets, rx_bytes;

		u64 tx_packets, tx_bytes;



		stats64 = per_cpu_ptr(dev->stats64, cpu);



		do {

			start = u64_stats_fetch_begin_irq(&stats64->syncp);

			rx_packets = stats64->rx_packets;

			rx_bytes = stats64->rx_bytes;

			tx_packets = stats64->tx_packets;

			tx_bytes = stats64->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats64->syncp, start));



		stats->rx_packets += rx_packets;

		stats->rx_bytes += rx_bytes;

		stats->tx_packets += tx_packets;

		stats->tx_bytes += tx_bytes;

	}

	dev_fetch_sw_netstats(stats, dev->stats64);

}

EXPORT_SYMBOL_GPL(usbnet_get_stats64);

drivers/net/wireless/quantenna/qtnfmac/core.c

+1 −22
Original line number Diff line number Diff line
@@ -139,34 +139,13 @@ static void qtnf_netdev_get_stats64(struct net_device *ndev, 
				    struct rtnl_link_stats64 *stats)

{

	struct qtnf_vif *vif = qtnf_netdev_get_priv(ndev);

	unsigned int start;

	int cpu;



	netdev_stats_to_stats64(stats, &ndev->stats);



	if (!vif->stats64)

		return;



	for_each_possible_cpu(cpu) {

		struct pcpu_sw_netstats *stats64;

		u64 rx_packets, rx_bytes;

		u64 tx_packets, tx_bytes;



		stats64 = per_cpu_ptr(vif->stats64, cpu);



		do {

			start = u64_stats_fetch_begin_irq(&stats64->syncp);

			rx_packets = stats64->rx_packets;

			rx_bytes = stats64->rx_bytes;

			tx_packets = stats64->tx_packets;

			tx_bytes = stats64->tx_bytes;

		} while (u64_stats_fetch_retry_irq(&stats64->syncp, start));



		stats->rx_packets += rx_packets;

		stats->rx_bytes += rx_bytes;

		stats->tx_packets += tx_packets;

		stats->tx_bytes += tx_bytes;

	}

	dev_fetch_sw_netstats(stats, vif->stats64);

}



/* Netdev handler for transmission timeout.

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