[PATCH v4 net-next 2/7] net: dsa: allow reporting of standard ethtool stats for slave devices
From: Alvin Šipraga <hidden>
Date: 2021-10-18 09:40:55
Also in:
lkml, netdev
Subsystem:
networking [dsa], networking [general], the rest · Maintainers:
Andrew Lunn, Vladimir Oltean, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Alvin Šipraga <alsi@bang-olufsen.dk>
Jakub pointed out that we have a new ethtool API for reporting device
statistics in a standardized way, via .get_eth_{phy,mac,ctrl}_stats.
Add a small amount of plumbing to allow DSA drivers to take advantage of
this when exposing statistics.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---
v3 -> v4: no change
v2 -> v3: this patch is new
include/net/dsa.h | 6 ++++++
net/dsa/slave.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/include/net/dsa.h b/include/net/dsa.h
index d784e76113b8..8fefd58ced8f 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h@@ -645,6 +645,12 @@ struct dsa_switch_ops { int (*get_sset_count)(struct dsa_switch *ds, int port, int sset); void (*get_ethtool_phy_stats)(struct dsa_switch *ds, int port, uint64_t *data); + void (*get_eth_phy_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_phy_stats *phy_stats); + void (*get_eth_mac_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_mac_stats *mac_stats); + void (*get_eth_ctrl_stats)(struct dsa_switch *ds, int port, + struct ethtool_eth_ctrl_stats *ctrl_stats); void (*get_stats64)(struct dsa_switch *ds, int port, struct rtnl_link_stats64 *s); void (*self_test)(struct dsa_switch *ds, int port,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 11ec9e689589..499f8d18c76d 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c@@ -789,6 +789,37 @@ static int dsa_slave_get_sset_count(struct net_device *dev, int sset) return -EOPNOTSUPP; } +static void dsa_slave_get_eth_phy_stats(struct net_device *dev, + struct ethtool_eth_phy_stats *phy_stats) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; + + if (ds->ops->get_eth_phy_stats) + ds->ops->get_eth_phy_stats(ds, dp->index, phy_stats); +} + +static void dsa_slave_get_eth_mac_stats(struct net_device *dev, + struct ethtool_eth_mac_stats *mac_stats) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; + + if (ds->ops->get_eth_mac_stats) + ds->ops->get_eth_mac_stats(ds, dp->index, mac_stats); +} + +static void +dsa_slave_get_eth_ctrl_stats(struct net_device *dev, + struct ethtool_eth_ctrl_stats *ctrl_stats) +{ + struct dsa_port *dp = dsa_slave_to_port(dev); + struct dsa_switch *ds = dp->ds; + + if (ds->ops->get_eth_ctrl_stats) + ds->ops->get_eth_ctrl_stats(ds, dp->index, ctrl_stats); +} + static void dsa_slave_net_selftest(struct net_device *ndev, struct ethtool_test *etest, u64 *buf) {
@@ -1695,6 +1726,9 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_strings = dsa_slave_get_strings, .get_ethtool_stats = dsa_slave_get_ethtool_stats, .get_sset_count = dsa_slave_get_sset_count, + .get_eth_phy_stats = dsa_slave_get_eth_phy_stats, + .get_eth_mac_stats = dsa_slave_get_eth_mac_stats, + .get_eth_ctrl_stats = dsa_slave_get_eth_ctrl_stats, .set_wol = dsa_slave_set_wol, .get_wol = dsa_slave_get_wol, .set_eee = dsa_slave_set_eee,
--
2.32.0