[PATCH v3 1/5] net: ethtool: Refactor identical get_ts_info implementations.
From: Köry Maincent <kory.maincent@bootlin.com>
Date: 2023-03-08 14:01:46
Also in:
linux-doc, linux-omap, lkml, netdev
Subsystem:
bonding driver, networking drivers, networking [ethtool], networking [general], the rest · Maintainers:
Jay Vosburgh, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Richard Cochran <richardcochran@gmail.com>
The vlan, macvlan and the bonding drivers call their "real" device driver
in order to report the time stamping capabilities. Provide a core
ethtool helper function to avoid copy/paste in the stack.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---
Notes:
Changes in V2:
- Refactor also macvlan driver
drivers/net/bonding/bond_main.c | 14 ++------------
drivers/net/macvlan.c | 14 +-------------
include/linux/ethtool.h | 8 ++++++++
net/8021q/vlan_dev.c | 15 +--------------
net/ethtool/common.c | 6 ++++++
5 files changed, 18 insertions(+), 39 deletions(-)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index fce9301c8ebb..11e025074594 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c@@ -5683,9 +5683,7 @@ static int bond_ethtool_get_ts_info(struct net_device *bond_dev, struct ethtool_ts_info *info) { struct bonding *bond = netdev_priv(bond_dev); - const struct ethtool_ops *ops; struct net_device *real_dev; - struct phy_device *phydev; int ret = 0; rcu_read_lock();
@@ -5694,16 +5692,8 @@ static int bond_ethtool_get_ts_info(struct net_device *bond_dev, rcu_read_unlock(); if (real_dev) { - ops = real_dev->ethtool_ops; - phydev = real_dev->phydev; - - if (phy_has_tsinfo(phydev)) { - ret = phy_ts_info(phydev, info); - goto out; - } else if (ops->get_ts_info) { - ret = ops->get_ts_info(real_dev, info); - goto out; - } + ret = ethtool_get_ts_info_by_layer(real_dev, info); + goto out; } info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE |
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index b8cc55b2d721..7e923d27196f 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c@@ -1059,20 +1059,8 @@ static int macvlan_ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) { struct net_device *real_dev = macvlan_dev_real_dev(dev); - const struct ethtool_ops *ops = real_dev->ethtool_ops; - struct phy_device *phydev = real_dev->phydev; - if (phy_has_tsinfo(phydev)) { - return phy_ts_info(phydev, info); - } else if (ops->get_ts_info) { - return ops->get_ts_info(real_dev, info); - } else { - info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | - SOF_TIMESTAMPING_SOFTWARE; - info->phc_index = -1; - } - - return 0; + return ethtool_get_ts_info_by_layer(real_dev, info); } static netdev_features_t macvlan_fix_features(struct net_device *dev,
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 99dc7bfbcd3c..fa20abec4b93 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h@@ -834,6 +834,14 @@ ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings, */ int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index); +/** + * ethtool_get_ts_info_by_layer - Obtains time stamping capabilities from the MAC or PHY layer. + * @dev: pointer to net_device structure + * @info: buffer to hold the result + * Returns zero on sauces, non-zero otherwise. + */ +int ethtool_get_ts_info_by_layer(struct net_device *dev, struct ethtool_ts_info *info); + /** * ethtool_sprintf - Write formatted string to ethtool string data * @data: Pointer to start of string to update
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index e1bb41a443c4..3e475feae543 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c@@ -683,20 +683,7 @@ static int vlan_ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) { const struct vlan_dev_priv *vlan = vlan_dev_priv(dev); - const struct ethtool_ops *ops = vlan->real_dev->ethtool_ops; - struct phy_device *phydev = vlan->real_dev->phydev; - - if (phy_has_tsinfo(phydev)) { - return phy_ts_info(phydev, info); - } else if (ops->get_ts_info) { - return ops->get_ts_info(vlan->real_dev, info); - } else { - info->so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE | - SOF_TIMESTAMPING_SOFTWARE; - info->phc_index = -1; - } - - return 0; + return ethtool_get_ts_info_by_layer(vlan->real_dev, info); } static void vlan_dev_get_stats64(struct net_device *dev,
diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index 566adf85e658..64a7e05cf2c2 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c@@ -572,6 +572,12 @@ int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index) } EXPORT_SYMBOL(ethtool_get_phc_vclocks); +int ethtool_get_ts_info_by_layer(struct net_device *dev, struct ethtool_ts_info *info) +{ + return __ethtool_get_ts_info(dev, info); +} +EXPORT_SYMBOL(ethtool_get_ts_info_by_layer); + const struct ethtool_phy_ops *ethtool_phy_ops; void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops)
--
2.25.1