Commit a1839426 authored by Heiner Kallweit's avatar Heiner Kallweit Committed by Jakub Kicinski
Browse files

net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation 



It's a frequent pattern to use netdev->stats for the less frequently
accessed counters and per-cpu counters for the frequently accessed
counters (rx/tx bytes/packets). Add a default ndo_get_stats64()
implementation for this use case.

Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarHeiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent ca4d632a

include/linux/netdevice.h

+1 −0
Original line number Diff line number Diff line
@@ -4527,6 +4527,7 @@ void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, 
			     const struct net_device_stats *netdev_stats);

void dev_fetch_sw_netstats(struct rtnl_link_stats64 *s,

			   const struct pcpu_sw_netstats __percpu *netstats);

void dev_get_tstats64(struct net_device *dev, struct rtnl_link_stats64 *s);



extern int		netdev_max_backlog;

extern int		netdev_tstamp_prequeue;

net/core/dev.c

+15 −0
Original line number Diff line number Diff line
@@ -10366,6 +10366,21 @@ void dev_fetch_sw_netstats(struct rtnl_link_stats64 *s, 
}

EXPORT_SYMBOL_GPL(dev_fetch_sw_netstats);



/**

 *	dev_get_tstats64 - ndo_get_stats64 implementation

 *	@dev: device to get statistics from

 *	@s: place to store stats

 *

 *	Populate @s from dev->stats and dev->tstats. Can be used as

 *	ndo_get_stats64() callback.

 */

void dev_get_tstats64(struct net_device *dev, struct rtnl_link_stats64 *s)

{

	netdev_stats_to_stats64(s, &dev->stats);

	dev_fetch_sw_netstats(s, dev->tstats);

}

EXPORT_SYMBOL_GPL(dev_get_tstats64);



struct netdev_queue *dev_ingress_queue_create(struct net_device *dev)

{

	struct netdev_queue *queue = dev_ingress_queue(dev);