From: Heiner Kallweit <hkallweit1@gmail.com>
To: Jakub Kicinski <kuba@kernel.org>,
David Miller <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
Russell King <linux@armlinux.org.uk>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Harald Welte <laforge@gnumonks.org>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Herbert Xu <herbert@gondor.apana.org.au>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
osmocom-net-gprs@lists.osmocom.org, wireguard@lists.zx2c4.com,
Steffen Klassert <steffen.klassert@secunet.com>
Subject: [PATCH net-next v2 01/10] net: core: add dev_get_tstats64 as a ndo_get_stats64 implementation
Date: Wed, 4 Nov 2020 15:24:01 +0100 [thread overview]
Message-ID: <91133597-bd18-20ab-2a98-fd061ff90fed@gmail.com> (raw)
In-Reply-To: <059fcb95-fba8-673e-0cd6-fb26e8ed4861@gmail.com>
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: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
include/linux/netdevice.h | 1 +
net/core/dev.c | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a53ed2d1e..7ce648a56 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -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;
diff --git a/net/core/dev.c b/net/core/dev.c
index 9e7f071b8..88acc03fa 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -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);
--
2.29.2
next prev parent reply other threads:[~2020-11-09 22:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 14:23 [PATCH net-next v2 00/10] net: add and use dev_get_tstats64 Heiner Kallweit
2020-11-04 14:24 ` Heiner Kallweit [this message]
2020-11-04 14:24 ` [PATCH net-next v2 02/10] net: dsa: use net core stats64 handling Heiner Kallweit
2020-11-04 14:25 ` [PATCH net-next v2 03/10] tun: switch to net core provided statistics counters Heiner Kallweit
2020-11-06 1:14 ` Jakub Kicinski
2020-11-06 7:48 ` Heiner Kallweit
2020-11-06 8:27 ` Heiner Kallweit
2020-11-06 16:18 ` Jakub Kicinski
2020-11-04 14:26 ` [PATCH net-next v2 04/10] ip6_tunnel: switch to dev_get_tstats64 Heiner Kallweit
2020-11-04 14:27 ` [PATCH net-next v2 05/10] net: " Heiner Kallweit
2020-11-04 14:27 ` [PATCH net-next v2 06/10] gtp: " Heiner Kallweit
2020-11-05 7:58 ` Harald Welte
2020-11-04 14:28 ` [PATCH net-next v2 07/10] wireguard: " Heiner Kallweit
2020-11-04 19:46 ` Jason A. Donenfeld
2020-11-04 14:28 ` [PATCH net-next v2 08/10] vti: " Heiner Kallweit
2020-11-04 14:29 ` [PATCH net-next v2 09/10] ipv4/ipv6: " Heiner Kallweit
2020-11-04 14:31 ` [PATCH net-next v2 10/10] net: remove ip_tunnel_get_stats64 Heiner Kallweit
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